From 2bdada687c2d8ed9ad80ee959f8977311a031843 Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Fri, 11 Jul 2008 03:25:48 -0500 Subject: Added durability flag to realm record, unit test for realm preening --- include/rabbit.hrl | 2 +- src/rabbit_amqqueue.erl | 2 +- src/rabbit_exchange.erl | 2 +- src/rabbit_realm.erl | 26 +++++++++++--------------- src/rabbit_tests.erl | 23 ++++++++++++++++++++++- 5 files changed, 36 insertions(+), 19 deletions(-) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 5a3006dd..c7415f45 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -30,7 +30,7 @@ -record(vhost_realm, {virtual_host, realm}). -record(realm, {name,ignore}). --record(realm_resource, {realm, resource}). +-record(realm_resource, {realm, resource, durable}). -record(user_realm, {username, realm, ticket_pattern}). diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 63f043ba..59c41fb8 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -142,7 +142,7 @@ declare(RealmName, NameBin, Durable, AutoDelete, Args) -> fun () -> case mnesia:wread({amqqueue, QName}) of [] -> ok = recover_queue(Q), - ok = rabbit_realm:add(RealmName, QName), + ok = rabbit_realm:add(RealmName, QName, Durable), Q; [ExistingQ] -> ExistingQ end diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 113b7878..32418ca2 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -106,7 +106,7 @@ declare(RealmName, NameBin, Type, Durable, AutoDelete, Args) -> durable_exchanges, Exchange, write); true -> ok end, - ok = rabbit_realm:add(RealmName, XName), + ok = rabbit_realm:add(RealmName, XName, Durable), Exchange; [ExistingX] -> ExistingX end diff --git a/src/rabbit_realm.erl b/src/rabbit_realm.erl index 2ededb5f..2887158b 100644 --- a/src/rabbit_realm.erl +++ b/src/rabbit_realm.erl @@ -27,7 +27,7 @@ -export([recover/0]). -export([add_realm/1, delete_realm/1, list_vhost_realms/1]). --export([add/2, delete/2, check/2, delete_from_all/1]). +-export([add/3, check/2, delete_from_all/1]). -export([access_request/3, enter_realm/3, leave_realms/1]). -export([on_node_down/1]). @@ -44,8 +44,8 @@ -spec(add_realm/1 :: (realm_name()) -> 'ok'). -spec(delete_realm/1 :: (realm_name()) -> 'ok'). -spec(list_vhost_realms/1 :: (vhost()) -> [name()]). --spec(add/2 :: (realm_name(), r(e_or_q())) -> 'ok'). --spec(delete/2 :: (realm_name(), r(e_or_q())) -> 'ok'). +% -spec(add/3 :: (realm_name(), r(e_or_q())) -> 'ok'). +% -spec(delete/3 :: (realm_name(), r(e_or_q())) -> 'ok'). -spec(check/2 :: (realm_name(), r(e_or_q())) -> bool() | not_found()). -spec(delete_from_all/1 :: (r(e_or_q())) -> 'ok'). -spec(access_request/3 :: (username(), bool(), ticket()) -> @@ -109,21 +109,18 @@ list_vhost_realms(VHostPath) -> VHostPath, fun () -> mnesia:read({vhost_realm, VHostPath}) end))]. -add(Realm = #resource{kind = realm}, Resource = #resource{}) -> - manage_link(fun mnesia:write/1, Realm, Resource). - -delete(Realm = #resource{kind = realm}, Resource = #resource{}) -> - manage_link(fun mnesia:delete_object/1, Realm, Resource). +add(Realm = #resource{kind = realm}, Resource = #resource{}, Durable) -> + manage_link(fun mnesia:write/1, Realm, Resource, Durable). % This links or unlinks a resource to a realm manage_link(Action, Realm = #resource{kind = realm, name = RealmName}, - Resource = #resource{name = ResourceName}) -> + Resource = #resource{name = ResourceName}, Durable) -> Table = realm_table_for_resource(Resource), rabbit_misc:execute_mnesia_transaction( fun () -> case mnesia:read({realm, Realm}) of [] -> mnesia:abort(not_found); - [_] -> Action({Table, RealmName, ResourceName}) + [_] -> Action({Table, RealmName, ResourceName, Durable}) end end). @@ -132,7 +129,6 @@ realm_table_for_resource(#resource{kind = queue}) -> realm_queue. parent_table_for_resource(#resource{kind = exchange}) -> exchange; parent_table_for_resource(#resource{kind = queue}) -> amqqueue. - check(#resource{kind = realm, name = Realm}, Resource = #resource{}) -> F = mnesia:match_object(#realm_resource{resource = Resource#resource.name, realm = Realm}), case mnesia:async_dirty(F) of @@ -236,14 +232,14 @@ preen_realm(Resource = #resource{}) -> LinkType = realm_table_for_resource(Resource), Q = qlc:q([L#realm_resource.resource || L <- mnesia:table(LinkType)]), Cursor = qlc:cursor(Q), - preen_next(Cursor,LinkType,parent_table_for_resource(Resource)), + preen_next(Cursor, LinkType, parent_table_for_resource(Resource)), qlc:delete_cursor(Cursor). - -preen_next(Cursor,LinkType,ParentTable) -> + +preen_next(Cursor, LinkType, ParentTable) -> case qlc:next_answers(Cursor,1) of [] -> ok; [ResourceKey] -> - case mnesia:read({ParentTable,ResourceKey}) of + case mnesia:match_object({ParentTable,ResourceKey,'_'}) of [] -> mnesia:delete_object({LinkType,'_',ResourceKey}); _ -> ok diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index beeb3508..5c265633 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -25,7 +25,9 @@ -module(rabbit_tests). --export([all_tests/0, test_parsing/0]). +-include("rabbit.hrl"). + +-export([all_tests/0, test_parsing/0,preening_test/0]). -import(lists). @@ -46,6 +48,25 @@ all_tests() -> test_parsing() -> passed = test_content_properties(), passed. + +preening_test() -> + Realm = #resource{virtual_host = <<"/">>,kind = realm, name = <<"/data">>}, + loop(Realm,1), + rabbit_realm:recover(). + +loop(_,0) -> ok; +loop(Realm,N) -> + declare(Realm,true), + declare(Realm,false), + loop(Realm,N-1). + +declare(Realm,Durable) -> + X = rabbit_misc:binstring_guid("x"), + Q = rabbit_misc:binstring_guid("amq.gen"), + AutoDelete = false, + rabbit_exchange:declare(Realm,X, <<"direct">>, Durable, AutoDelete, undefined), + rabbit_amqqueue:declare(Realm, Q, Durable, AutoDelete, undefined). + test_content_properties() -> test_content_prop_roundtrip([], <<0, 0>>), -- cgit v1.2.1 -- cgit v1.2.1 From 1c8f04204438c7bb86fae02751f17c1fc910e9b6 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Tue, 19 Aug 2008 17:36:05 +0100 Subject: Experimental queue.declare argument "rabbitmq.presence". --- src/rabbit_amqqueue_process.erl | 48 +++++++++++++++++++++++++++++++++++------ 1 file changed, 41 insertions(+), 7 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 7716ef16..ac92c577 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -67,17 +67,51 @@ start_link(Q) -> %%---------------------------------------------------------------------------- +get_arg(#q{q = #amqqueue{arguments = Args}}, Key, DefaultTypeAndValue) -> + case lists:keysearch(Key, 1, Args) of + {value, {_, TypeCode, Value}} -> + {TypeCode, Value}; + _ -> + DefaultTypeAndValue + end. + +presence_exchange(State) -> + %% TODO FIXME don't hardcode the virtualhost + case get_arg(State, <<"rabbitmq.presence">>, absent) of + {longstr, XNameBin} -> + XNameBin; + _ -> + none + end. + +emit_presence(State, RK) -> + case presence_exchange(State) of + none -> + ok; + XNameBin -> + #resource{name = QNameBin} = qname(State), + %% TODO FIXME don't hardcode the vhost + XName = #resource{virtual_host = <<"/">>, kind = exchange, name = XNameBin}, + _Ignored = rabbit_exchange:simple_publish(false, false, XName, RK, + <<"text/plain">>, + QNameBin), + ok + end. + init(Q) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), - {ok, #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - next_msg_id = 1, - message_buffer = queue:new(), - round_robin = queue:new()}}. + NewState = #q{q = Q, + owner = none, + exclusive_consumer = none, + has_had_consumers = false, + next_msg_id = 1, + message_buffer = queue:new(), + round_robin = queue:new()}, + emit_presence(NewState, <<"queue.startup">>), + {ok, NewState}. terminate(_Reason, State) -> + emit_presence(State, <<"queue.shutdown">>), %% FIXME: How do we cancel active subscriptions? QName = qname(State), lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, -- cgit v1.2.1 From 7e7eea77cf27261a3dcc77da400e4f3ca3305569 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Thu, 21 Aug 2008 17:21:36 +0100 Subject: Alternative experimental presence scheme, with amq.rabbitmq.presence exchange and every queue broadcasting startup/shutdown into it, with the queue name in the routing key. --- src/rabbit_access_control.erl | 1 + src/rabbit_amqqueue_process.erl | 35 ++--------------------------------- src/rabbit_misc.erl | 24 ++++++++++++++++++++++++ 3 files changed, 27 insertions(+), 33 deletions(-) diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl index 4342e15b..3d2e6fe7 100644 --- a/src/rabbit_access_control.erl +++ b/src/rabbit_access_control.erl @@ -180,6 +180,7 @@ add_vhost(VHostPath) -> [{<<"">>, direct}, {<<"amq.direct">>, direct}, {<<"amq.topic">>, topic}, + {<<"amq.rabbitmq.presence">>, topic}, {<<"amq.fanout">>, fanout}]], ok; [_] -> diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index ac92c577..948fd37b 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -67,37 +67,6 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -get_arg(#q{q = #amqqueue{arguments = Args}}, Key, DefaultTypeAndValue) -> - case lists:keysearch(Key, 1, Args) of - {value, {_, TypeCode, Value}} -> - {TypeCode, Value}; - _ -> - DefaultTypeAndValue - end. - -presence_exchange(State) -> - %% TODO FIXME don't hardcode the virtualhost - case get_arg(State, <<"rabbitmq.presence">>, absent) of - {longstr, XNameBin} -> - XNameBin; - _ -> - none - end. - -emit_presence(State, RK) -> - case presence_exchange(State) of - none -> - ok; - XNameBin -> - #resource{name = QNameBin} = qname(State), - %% TODO FIXME don't hardcode the vhost - XName = #resource{virtual_host = <<"/">>, kind = exchange, name = XNameBin}, - _Ignored = rabbit_exchange:simple_publish(false, false, XName, RK, - <<"text/plain">>, - QNameBin), - ok - end. - init(Q) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), NewState = #q{q = Q, @@ -107,11 +76,11 @@ init(Q) -> next_msg_id = 1, message_buffer = queue:new(), round_robin = queue:new()}, - emit_presence(NewState, <<"queue.startup">>), + rabbit_misc:emit_presence(qname(NewState), <<"startup">>), {ok, NewState}. terminate(_Reason, State) -> - emit_presence(State, <<"queue.shutdown">>), + rabbit_misc:emit_presence(qname(State), <<"shutdown">>), %% FIXME: How do we cancel active subscriptions? QName = qname(State), lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 11ab0caf..8f1a6072 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -41,6 +41,7 @@ -export([intersperse/2, upmap/2, map_in_order/2]). -export([guid/0, string_guid/1, binstring_guid/1]). -export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). +-export([escape_routing_key/1, emit_presence/2]). -import(mnesia). -import(lists). @@ -333,3 +334,26 @@ dirty_dump_log1(LH, {K, Terms}) -> dirty_dump_log1(LH, {K, Terms, BadBytes}) -> io:format("Bad Chunk, ~p: ~p~n", [BadBytes, Terms]), dirty_dump_log1(LH, disk_log:chunk(LH, K)). + +escape_routing_key(K) when is_binary(K) -> + list_to_binary(escape_routing_key1(binary_to_list(K))). + +escape_routing_key1([]) -> + []; +escape_routing_key1([Ch | Rest]) -> + Tail = escape_routing_key1(Rest), + case Ch of + $# -> "%23" ++ Tail; + $% -> "%25" ++ Tail; + $* -> "%2a" ++ Tail; + $. -> "%2e" ++ Tail; + _ -> [Ch | Tail] + end. + +emit_presence(#resource{virtual_host = VHostBin, kind = KindAtom, name = InstanceBin}, EventBin) -> + ClassBin = list_to_binary(atom_to_list(KindAtom)), + XName = #resource{virtual_host = VHostBin, kind = exchange, name = <<"amq.rabbitmq.presence">>}, + RK = list_to_binary(["presence.", ClassBin, ".", escape_routing_key(InstanceBin), + ".", EventBin]), + _Ignored = rabbit_exchange:simple_publish(false, false, XName, RK, undefined, <<>>), + ok. -- cgit v1.2.1 From b7a858009a380662342575fdaa60fd3f60a3f057 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Fri, 29 Aug 2008 16:08:08 +0100 Subject: cosmetic changes and minor refactoring --- src/rabbit_access_control.erl | 4 ++-- src/rabbit_misc.erl | 11 +++++++---- 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl index 3d2e6fe7..592b6467 100644 --- a/src/rabbit_access_control.erl +++ b/src/rabbit_access_control.erl @@ -180,8 +180,8 @@ add_vhost(VHostPath) -> [{<<"">>, direct}, {<<"amq.direct">>, direct}, {<<"amq.topic">>, topic}, - {<<"amq.rabbitmq.presence">>, topic}, - {<<"amq.fanout">>, fanout}]], + {<<"amq.fanout">>, fanout}, + {<<"amq.rabbitmq.presence">>, topic}]], ok; [_] -> mnesia:abort({vhost_already_exists, VHostPath}) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 8f1a6072..2cb5c40b 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -350,10 +350,13 @@ escape_routing_key1([Ch | Rest]) -> _ -> [Ch | Tail] end. -emit_presence(#resource{virtual_host = VHostBin, kind = KindAtom, name = InstanceBin}, EventBin) -> +emit_presence(Resource = #resource{kind = KindAtom, name = InstanceBin}, + EventBin) -> ClassBin = list_to_binary(atom_to_list(KindAtom)), - XName = #resource{virtual_host = VHostBin, kind = exchange, name = <<"amq.rabbitmq.presence">>}, - RK = list_to_binary(["presence.", ClassBin, ".", escape_routing_key(InstanceBin), + XName = r(Resource, exchange, <<"amq.rabbitmq.presence">>), + RK = list_to_binary(["presence.", ClassBin, + ".", escape_routing_key(InstanceBin), ".", EventBin]), - _Ignored = rabbit_exchange:simple_publish(false, false, XName, RK, undefined, <<>>), + _Ignored = rabbit_exchange:simple_publish( + false, false, XName, RK, undefined, <<>>), ok. -- cgit v1.2.1 From 4c8d4739bb3423349c21407ca7e693e6fb0ee425 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Fri, 29 Aug 2008 16:13:59 +0100 Subject: tabs -> spaces --- src/rabbit_amqqueue_process.erl | 12 ++++++------ src/rabbit_misc.erl | 12 ++++++------ 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 948fd37b..75a0e57a 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -70,12 +70,12 @@ start_link(Q) -> init(Q) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), NewState = #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - next_msg_id = 1, - message_buffer = queue:new(), - round_robin = queue:new()}, + owner = none, + exclusive_consumer = none, + has_had_consumers = false, + next_msg_id = 1, + message_buffer = queue:new(), + round_robin = queue:new()}, rabbit_misc:emit_presence(qname(NewState), <<"startup">>), {ok, NewState}. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 2cb5c40b..239a0ee8 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -343,11 +343,11 @@ escape_routing_key1([]) -> escape_routing_key1([Ch | Rest]) -> Tail = escape_routing_key1(Rest), case Ch of - $# -> "%23" ++ Tail; - $% -> "%25" ++ Tail; - $* -> "%2a" ++ Tail; - $. -> "%2e" ++ Tail; - _ -> [Ch | Tail] + $# -> "%23" ++ Tail; + $% -> "%25" ++ Tail; + $* -> "%2a" ++ Tail; + $. -> "%2e" ++ Tail; + _ -> [Ch | Tail] end. emit_presence(Resource = #resource{kind = KindAtom, name = InstanceBin}, @@ -356,7 +356,7 @@ emit_presence(Resource = #resource{kind = KindAtom, name = InstanceBin}, XName = r(Resource, exchange, <<"amq.rabbitmq.presence">>), RK = list_to_binary(["presence.", ClassBin, ".", escape_routing_key(InstanceBin), - ".", EventBin]), + ".", EventBin]), _Ignored = rabbit_exchange:simple_publish( false, false, XName, RK, undefined, <<>>), ok. -- cgit v1.2.1 From 6c593403aec7f2cf9f13b34a0487d92f323d26bb Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Fri, 26 Sep 2008 00:29:05 +0100 Subject: Created branch for route caching --- src/rabbit_cache.erl | 37 +++++++++++++++++++++++++++++++++++++ src/rabbit_exchange.erl | 11 +++++++---- 2 files changed, 44 insertions(+), 4 deletions(-) create mode 100644 src/rabbit_cache.erl diff --git a/src/rabbit_cache.erl b/src/rabbit_cache.erl new file mode 100644 index 00000000..327b823e --- /dev/null +++ b/src/rabbit_cache.erl @@ -0,0 +1,37 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd., +%% Cohesive Financial Technologies LLC., and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd., Cohesive Financial Technologies +%% LLC., and Rabbit Technologies Ltd. are Copyright (C) 2007-2008 +%% LShift Ltd., Cohesive Financial Technologies LLC., and Rabbit +%% Technologies Ltd.; +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_cache). + +-export([read_through/2]). + +read_through(Key, Fun) -> + case get(Key) of + undefined -> + Value = Fun(), + put(Key, Value), + Value; + Value -> Value + end. \ No newline at end of file diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 52a6dbdd..4dd4b865 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -222,15 +222,18 @@ route(#exchange{name = Name, type = topic}, RoutingKey) -> % key = '$2'}}, % Guards = [{'==', '$1', Name}, {'==', '$2', RoutingKey}], % ... -route(#exchange{name = #resource{name = Name, virtual_host = VHostPath}}, RoutingKey) -> +route(X = #exchange{name = #resource{name = Name, virtual_host = VHostPath}}, RoutingKey) -> Exchange = #resource{kind = exchange, name ='$1', virtual_host = '$2'}, MatchHead = #route{binding = #binding{exchange_name = Exchange, queue_name = '$3', key = '$4'}}, Guards = [{'==', '$1', Name}, {'==', '$2', VHostPath}, {'==', '$4', RoutingKey}], - lookup_qpids(mnesia:activity(async_dirty, - fun() -> mnesia:select(route, [{MatchHead, Guards, ['$3']}]) - end)). + Predicate = [{MatchHead, Guards, ['$3']}], + rabbit_cache:read_through({X, RoutingKey}, + fun() -> lookup_qpids( + mnesia:activity(async_dirty, + fun() -> mnesia:select(route, Predicate) end)) + end). lookup_qpids(Queues) -> Set = sets:from_list(Queues), -- cgit v1.2.1 From f7ec115cd86aee9ff2a8ab079d39612fe6054022 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Fri, 3 Oct 2008 13:31:50 +0100 Subject: propagate channel/connection errors when in closing state --- src/rabbit_reader.erl | 37 ++++++++++++++++++------------------- 1 file changed, 18 insertions(+), 19 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index bfd1ea72..7e68b3ed 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -94,10 +94,18 @@ %% terminate_channel timeout -> remove 'closing' mark, *closing* %% handshake_timeout -> ignore, *closing* %% heartbeat timeout -> *throw* -%% channel exit -> -%% if abnormal exit then log error -%% if last channel to exit then send connection.close_ok, start -%% terminate_connection timer, *closing* +%% channel exit with hard error +%% -> log error, wait for channels to terminate forcefully, start +%% terminate_connection timer, send close, *closed* +%% channel exit with soft error +%% -> log error, start terminate_channel timer, mark channel as +%% closing +%% if last channel to exit then send connection.close_ok, +%% start terminate_connection timer, *closed* +%% else *closing* +%% channel exits normally +%% -> if last channel to exit then send connection.close_ok, +%% start terminate_connection timer, *closed* %% closed: %% socket close -> *terminate* %% receive connection.close_ok -> self() ! terminate_connection, @@ -291,24 +299,13 @@ terminate_channel(Channel, Ref, State) -> end, State. -handle_dependent_exit(Pid, Reason, - State = #v1{connection_state = closing}) -> - case channel_cleanup(Pid) of - undefined -> exit({abnormal_dependent_exit, Pid, Reason}); - Channel -> - case Reason of - normal -> ok; - _ -> log_channel_error(closing, Channel, Reason) - end, - maybe_close(State) - end; handle_dependent_exit(Pid, normal, State) -> channel_cleanup(Pid), - State; + maybe_close(State); handle_dependent_exit(Pid, Reason, State) -> case channel_cleanup(Pid) of undefined -> exit({abnormal_dependent_exit, Pid, Reason}); - Channel -> handle_exception(State, Channel, Reason) + Channel -> maybe_close(handle_exception(State, Channel, Reason)) end. channel_cleanup(Pid) -> @@ -365,13 +362,15 @@ wait_for_channel_termination(N, TimerRef) -> exit(channel_termination_timeout) end. -maybe_close(State) -> +maybe_close(State = #v1{connection_state = closing}) -> case all_channels() of [] -> ok = send_on_channel0( State#v1.sock, #'connection.close_ok'{}), close_connection(State); _ -> State - end. + end; +maybe_close(State) -> + State. handle_frame(Type, 0, Payload, State = #v1{connection_state = CS}) when CS =:= closing; CS =:= closed -> -- cgit v1.2.1 From 811734754daf63aefeb3d5a0447c39c0c4b10273 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Fri, 3 Oct 2008 13:38:01 +0100 Subject: backout changeset committed on wrong branch --- src/rabbit_reader.erl | 37 +++++++++++++++++++------------------ 1 file changed, 19 insertions(+), 18 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 7e68b3ed..bfd1ea72 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -94,18 +94,10 @@ %% terminate_channel timeout -> remove 'closing' mark, *closing* %% handshake_timeout -> ignore, *closing* %% heartbeat timeout -> *throw* -%% channel exit with hard error -%% -> log error, wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *closed* -%% channel exit with soft error -%% -> log error, start terminate_channel timer, mark channel as -%% closing -%% if last channel to exit then send connection.close_ok, -%% start terminate_connection timer, *closed* -%% else *closing* -%% channel exits normally -%% -> if last channel to exit then send connection.close_ok, -%% start terminate_connection timer, *closed* +%% channel exit -> +%% if abnormal exit then log error +%% if last channel to exit then send connection.close_ok, start +%% terminate_connection timer, *closing* %% closed: %% socket close -> *terminate* %% receive connection.close_ok -> self() ! terminate_connection, @@ -299,13 +291,24 @@ terminate_channel(Channel, Ref, State) -> end, State. +handle_dependent_exit(Pid, Reason, + State = #v1{connection_state = closing}) -> + case channel_cleanup(Pid) of + undefined -> exit({abnormal_dependent_exit, Pid, Reason}); + Channel -> + case Reason of + normal -> ok; + _ -> log_channel_error(closing, Channel, Reason) + end, + maybe_close(State) + end; handle_dependent_exit(Pid, normal, State) -> channel_cleanup(Pid), - maybe_close(State); + State; handle_dependent_exit(Pid, Reason, State) -> case channel_cleanup(Pid) of undefined -> exit({abnormal_dependent_exit, Pid, Reason}); - Channel -> maybe_close(handle_exception(State, Channel, Reason)) + Channel -> handle_exception(State, Channel, Reason) end. channel_cleanup(Pid) -> @@ -362,15 +365,13 @@ wait_for_channel_termination(N, TimerRef) -> exit(channel_termination_timeout) end. -maybe_close(State = #v1{connection_state = closing}) -> +maybe_close(State) -> case all_channels() of [] -> ok = send_on_channel0( State#v1.sock, #'connection.close_ok'{}), close_connection(State); _ -> State - end; -maybe_close(State) -> - State. + end. handle_frame(Type, 0, Payload, State = #v1{connection_state = CS}) when CS =:= closing; CS =:= closed -> -- cgit v1.2.1 From 6c1976f5b38781bb8a8c297cc438dcee96035910 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Sat, 4 Oct 2008 18:11:24 +0100 Subject: wiring for system_memory_high_watermark alarms Queue processes are initialised with, and are alerted to transitions in, the system_memory_high_watermark alarm status. --- src/rabbit_alarm.erl | 24 +++++++++++++++++++++--- src/rabbit_amqqueue.erl | 18 +++++++++++++++++- src/rabbit_amqqueue_process.erl | 11 +++++++++++ 3 files changed, 49 insertions(+), 4 deletions(-) diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index e71dda59..f38651d1 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -27,19 +27,22 @@ -behaviour(gen_event). --export([start/0, stop/0]). +-export([start/0, stop/0, maybe_conserve_memory/1]). -export([init/1, handle_call/2, handle_event/2, handle_info/2, terminate/2, code_change/3]). -define(MEMSUP_CHECK_INTERVAL, 1000). +-record(alarms, {system_memory_high_watermark = false}). + %%---------------------------------------------------------------------------- -ifdef(use_specs). -spec(start/0 :: () -> 'ok'). -spec(stop/0 :: () -> 'ok'). +-spec(maybe_conserve_memory/1 :: (pid()) -> 'ok'). -endif. @@ -61,15 +64,30 @@ start() -> stop() -> ok = alarm_handler:delete_alarm_handler(?MODULE). +maybe_conserve_memory(QPid) -> + gen_event:call(alarm_handler, ?MODULE, {maybe_conserve_memory, QPid}). + %%---------------------------------------------------------------------------- init([]) -> - {ok, none}. + {ok, #alarms{}}. + +handle_call({maybe_conserve_memory, QPid}, + State = #alarms{system_memory_high_watermark = Conserve}) -> + {ok, rabbit_amqqueue:conserve_memory(QPid, Conserve), State}; handle_call(_Request, State) -> {ok, not_understood, State}. -handle_event(Event, State) -> +handle_event({set_alarm,{system_memory_high_watermark,[]}}, State) -> + rabbit_amqqueue:conserve_memory(true), + {ok, State#alarms{system_memory_high_watermark = true}}; + +handle_event({clear_alarm,{system_memory_high_watermark,[]}}, State) -> + rabbit_amqqueue:conserve_memory(false), + {ok, State#alarms{system_memory_high_watermark = false}}; + +handle_event(_Event, State) -> {ok, State}. handle_info(_Info, State) -> diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 7ce350d8..0dc6931d 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -26,7 +26,7 @@ -module(rabbit_amqqueue). -export([start/0, recover/0, declare/4, delete/3, purge/1, internal_delete/1]). --export([pseudo_queue/2]). +-export([conserve_memory/1, conserve_memory/2, pseudo_queue/2]). -export([lookup/1, with/2, with_or_die/2, list_vhost_queues/1, stat/1, stat_all/0, deliver/5, redeliver/2, requeue/3, ack/4, commit/2, rollback/2]). @@ -55,6 +55,8 @@ {'error', 'queue_not_found' | 'exchange_not_found'}). -spec(start/0 :: () -> 'ok'). -spec(recover/0 :: () -> 'ok'). +-spec(conserve_memory/1 :: (bool()) -> 'ok'). +-spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). -spec(declare/4 :: (queue_name(), bool(), bool(), amqp_table()) -> amqqueue()). -spec(add_binding/4 :: @@ -130,6 +132,19 @@ recover_durable_queues() -> ok end). +conserve_memory(Conserve) -> + [ok = gen_server:cast(QPid, {conserve_memory, Conserve}) || + {_, QPid, worker, _} <- + supervisor:which_children(rabbit_amqqueue_sup)], + ok. + +conserve_memory(QPid, Conserve) -> + %% This needs to be synchronous. It is called during queue + %% creation and we need to make sure that the memory conservation + %% status of the queue has been set before it becomes reachable in + %% message routing. + gen_server:call(QPid, {conserve_memory, Conserve}). + declare(QueueName, Durable, AutoDelete, Args) -> Q = start_queue_process(#amqqueue{name = QueueName, durable = Durable, @@ -160,6 +175,7 @@ store_queue(Q = #amqqueue{durable = false}) -> start_queue_process(Q) -> {ok, Pid} = supervisor:start_child(rabbit_amqqueue_sup, [Q]), + ok = rabbit_alarm:maybe_conserve_memory(Pid), Q#amqqueue{pid = Pid}. recover_queue(Q) -> diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 7716ef16..b508ecf8 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -90,6 +90,11 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- +conserve_memory(Conserve, State) -> + %% TODO + rabbit_log:info("~p conserving memory: ~p~n", [self(), Conserve]), + State. + lookup_ch(ChPid) -> case get({ch, ChPid}) of undefined -> not_found; @@ -455,6 +460,9 @@ purge_message_buffer(QName, MessageBuffer) -> %--------------------------------------------------------------------------- +handle_call({conserve_memory, Conserve}, _From, State) -> + {reply, ok, conserve_memory(Conserve, State)}; + handle_call({deliver_immediately, Txn, Message}, _From, State) -> %% Synchronous, "immediate" delivery mode %% @@ -614,6 +622,9 @@ handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, {reply, locked, State} end. +handle_cast({conserve_memory, Conserve}, State) -> + {noreply, conserve_memory(Conserve, State)}; + handle_cast({deliver, Txn, Message}, State) -> %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. {_Delivered, NewState} = deliver_or_enqueue(Txn, Message, State), -- cgit v1.2.1 From 6bc2454ddc1c7b576b950e62cd0876738f157b38 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Sun, 5 Oct 2008 11:44:50 +0100 Subject: document limitation of initial effectiveness of memsup checks --- src/rabbit_alarm.erl | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index f38651d1..d5cbf066 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -56,6 +56,11 @@ start() -> %% a granularity of minutes. So we have to peel off one layer of %% the API to get to the underlying layer which operates at the %% granularity of milliseconds. + %% + %% Note that the new setting will only take effect after the first + %% check has completed, i.e. after one minute. So if rabbit eats + %% all the memory within the first minute after startup then we + %% are out of luck. ok = os_mon:call(memsup, {set_check_interval, ?MEMSUP_CHECK_INTERVAL}, infinity), -- cgit v1.2.1 From d8e0b34050e3bb17d127eba8c344162dd1abca46 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Sun, 5 Oct 2008 13:03:05 +0100 Subject: make queues drop new messages whene memory is low - deliver_immediately needed refactoring so that in the memory-conserving case it looks for an auto-ack consumer (to which the message can be delivered without needing to keep a record of it), rather than just picking the first available consumer - We don't want to drop messages that have already been enqueued. Therefore the call to deliver_immediately in run_poke_burst always pretends that memory conservation mode is inactive. run_poke_burst is the (only) place that handles delivery of already enqueued messages, e.g. when redelivering unacked messages after channel closure, adding a new consumer and recovering messages from the persister after a restart. - a warning with the count of dropped messages (if >0) is logged when the queue resumes normal operation or is terminated TODO: drop transactional messages and mark the tx as failed --- src/rabbit_amqqueue_process.erl | 131 +++++++++++++++++++++++++++++----------- 1 file changed, 95 insertions(+), 36 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index b508ecf8..2669ff27 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -44,6 +44,8 @@ owner, exclusive_consumer, has_had_consumers, + conserve_memory, + dropped_message_count, next_msg_id, message_buffer, round_robin}). @@ -73,13 +75,16 @@ init(Q) -> owner = none, exclusive_consumer = none, has_had_consumers = false, + conserve_memory = false, + dropped_message_count = 0, next_msg_id = 1, message_buffer = queue:new(), round_robin = queue:new()}}. -terminate(_Reason, State) -> +terminate(_Reason, State = #q{dropped_message_count = C}) -> %% FIXME: How do we cancel active subscriptions? QName = qname(State), + log_dropped_message_count(QName, C), lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, all_tx()), ok = purge_message_buffer(QName, State#q.message_buffer), @@ -90,10 +95,20 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- +log_dropped_message_count(_QName, 0) -> + ok; +log_dropped_message_count(QName, C) -> + rabbit_log:warning("~s dropped ~p messages to conserve memory~n", + [rabbit_misc:rs(QName), C]), + ok. + +conserve_memory(false, State = #q{q = #amqqueue{name = QName}, + conserve_memory = true, + dropped_message_count = C}) -> + log_dropped_message_count(QName, C), + State#q{conserve_memory = false, dropped_message_count = 0}; conserve_memory(Conserve, State) -> - %% TODO - rabbit_log:info("~p conserving memory: ~p~n", [self(), Conserve]), - State. + State#q{conserve_memory = Conserve}. lookup_ch(ChPid) -> case get({ch, ChPid}) of @@ -138,47 +153,89 @@ update_store_and_maybe_block_ch( store_ch_record(C#cr{is_overload_protection_active = NewActive}), Result. -deliver_immediately(Message, Delivered, +increment_dropped_message_count(State) -> + State#q{dropped_message_count = State#q.dropped_message_count + 1}. + +find_auto_ack_consumer(RoundRobin, RoundRobinNew) -> + case queue:out(RoundRobin) of + {{value, QEntry = {_, #consumer{ack_required = AckRequired}}}, + RoundRobinTail} -> + case AckRequired of + true -> find_auto_ack_consumer( + RoundRobinTail, + queue:in(QEntry, RoundRobinNew)); + false -> {QEntry, queue:join(RoundRobinNew, RoundRobinTail)} + end; + {empty, _} -> false + end. + +deliver_to_consumer(Message, Delivered, QName, MsgId, + QEntry = {ChPid, #consumer{tag = ConsumerTag, + ack_required = AckRequired}}, + RoundRobinTail) -> + ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), + rabbit_channel:deliver( + ChPid, ConsumerTag, AckRequired, + {QName, self(), MsgId, Delivered, Message}), + C = #cr{unsent_message_count = Count, unacked_messages = UAM} = + ch_record(ChPid), + NewUAM = case AckRequired of + true -> dict:store(MsgId, Message, UAM); + false -> UAM + end, + NewConsumers = case update_store_and_maybe_block_ch( + C#cr{unsent_message_count = Count + 1, + unacked_messages = NewUAM}) of + ok -> queue:in(QEntry, RoundRobinTail); + block_ch -> block_consumers(ChPid, RoundRobinTail) + end, + {AckRequired, NewConsumers}. + +deliver_immediately(Message, Delivered, true, + State = #q{q = #amqqueue{name = QName}, + round_robin = RoundRobin, + next_msg_id = NextId}) -> + case queue:is_empty(RoundRobin) of + true -> {not_offered, State}; + false -> case find_auto_ack_consumer(RoundRobin, queue:new()) of + false -> + {not_offered, + increment_dropped_message_count(State)}; + {QEntry, RoundRobinTail} -> + {AckRequired, NewRoundRobin} = + deliver_to_consumer( + Message, Delivered, QName, NextId, + QEntry, RoundRobinTail), + {offered, AckRequired, + State#q{round_robin = NewRoundRobin, + next_msg_id = NextId + 1}} + end + end; +deliver_immediately(Message, Delivered, false, State = #q{q = #amqqueue{name = QName}, round_robin = RoundRobin, next_msg_id = NextId}) -> - ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), case queue:out(RoundRobin) of - {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}}, - RoundRobinTail} -> - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, Delivered, Message}), - C = #cr{unsent_message_count = Count, - unacked_messages = UAM} = ch_record(ChPid), - NewUAM = case AckRequired of - true -> dict:store(NextId, Message, UAM); - false -> UAM - end, - NewConsumers = - case update_store_and_maybe_block_ch( - C#cr{unsent_message_count = Count + 1, - unacked_messages = NewUAM}) of - ok -> queue:in(QEntry, RoundRobinTail); - block_ch -> block_consumers(ChPid, RoundRobinTail) - end, - {offered, AckRequired, State#q{round_robin = NewConsumers, - next_msg_id = NextId +1}}; + {{value, QEntry}, RoundRobinTail} -> + {AckRequired, NewRoundRobin} = + deliver_to_consumer(Message, Delivered, QName, NextId, + QEntry, RoundRobinTail), + {offered, AckRequired, State#q{round_robin = NewRoundRobin, + next_msg_id = NextId + 1}}; {empty, _} -> - not_offered + {not_offered, State} end. -attempt_delivery(none, Message, State) -> - case deliver_immediately(Message, false, State) of +attempt_delivery(none, Message, State = #q{conserve_memory = Conserve}) -> + case deliver_immediately(Message, false, Conserve, State) of {offered, false, State1} -> {true, State1}; {offered, true, State1} -> persist_message(none, qname(State), Message), persist_delivery(qname(State), Message, false), {true, State1}; - not_offered -> - {false, State} + {not_offered, State1} -> + {false, State1} end; attempt_delivery(Txn, Message, State) -> persist_message(Txn, qname(State), Message), @@ -189,7 +246,9 @@ deliver_or_enqueue(Txn, Message, State) -> case attempt_delivery(Txn, Message, State) of {true, NewState} -> {true, NewState}; - {false, NewState} -> + {false, NewState = #q{conserve_memory = true}} -> + {false, NewState}; + {false, NewState = #q{conserve_memory = false}} -> persist_message(Txn, qname(State), Message), NewMB = queue:in({Message, false}, NewState#q.message_buffer), {false, NewState#q{message_buffer = NewMB}} @@ -306,15 +365,15 @@ run_poke_burst(State = #q{message_buffer = MessageBuffer}) -> run_poke_burst(MessageBuffer, State) -> case queue:out(MessageBuffer) of {{value, {Message, Delivered}}, BufferTail} -> - case deliver_immediately(Message, Delivered, State) of + case deliver_immediately(Message, Delivered, false, State) of {offered, true, NewState} -> persist_delivery(qname(State), Message, Delivered), run_poke_burst(BufferTail, NewState); {offered, false, NewState} -> persist_auto_ack(qname(State), Message), run_poke_burst(BufferTail, NewState); - not_offered -> - State#q{message_buffer = MessageBuffer} + {not_offered, NewState} -> + NewState#q{message_buffer = MessageBuffer} end; {empty, _} -> State#q{message_buffer = MessageBuffer} -- cgit v1.2.1 From 992cb011b2b07a44916d5f14678c4f959d4cfb0c Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Sun, 5 Oct 2008 14:35:46 +0100 Subject: drop transactional messages when conserving memory and make sure the involved transactions fail when committing --- src/rabbit_amqqueue.erl | 4 ++-- src/rabbit_amqqueue_process.erl | 34 +++++++++++++++++++++++++++------- 2 files changed, 29 insertions(+), 9 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 0dc6931d..9156924e 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -83,8 +83,8 @@ -spec(redeliver/2 :: (pid(), [{message(), bool()}]) -> 'ok'). -spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). -spec(ack/4 :: (pid(), maybe(txn()), [msg_id()], pid()) -> 'ok'). --spec(commit/2 :: (pid(), txn()) -> 'ok'). --spec(rollback/2 :: (pid(), txn()) -> 'ok'). +-spec(commit/2 :: (pid(), txn()) -> 'ok' | {'error', any()}). +-spec(rollback/2 :: (pid(), txn()) -> 'ok' | {'error', any()}). -spec(notify_down/2 :: (amqqueue(), pid()) -> 'ok'). -spec(binding_forcibly_removed/2 :: (binding_spec(), queue_name()) -> 'ok'). -spec(claim_queue/2 :: (amqqueue(), pid()) -> 'ok' | 'locked'). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 2669ff27..99560850 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -52,7 +52,8 @@ -record(consumer, {tag, ack_required}). --record(tx, {ch_pid, is_persistent, pending_messages, pending_acks}). +-record(tx, {ch_pid, is_persistent, fail_reason, + pending_messages, pending_acks}). %% These are held in our process dictionary -record(cr, {consumers, @@ -237,10 +238,13 @@ attempt_delivery(none, Message, State = #q{conserve_memory = Conserve}) -> {not_offered, State1} -> {false, State1} end; -attempt_delivery(Txn, Message, State) -> +attempt_delivery(Txn, Message, State = #q{conserve_memory = false}) -> persist_message(Txn, qname(State), Message), record_pending_message(Txn, Message), - {true, State}. + {true, State}; +attempt_delivery(Txn, _Message, State = #q{conserve_memory = true}) -> + mark_tx_failed(Txn, dropped_messages_to_conserve_memory), + {false, increment_dropped_message_count(State)}. deliver_or_enqueue(Txn, Message, State) -> case attempt_delivery(Txn, Message, State) of @@ -455,6 +459,7 @@ lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx{ch_pid = none, is_persistent = false, + fail_reason = none, pending_messages = [], pending_acks = []}; V -> V @@ -477,6 +482,14 @@ is_tx_persistent(Txn) -> #tx{is_persistent = Res} = lookup_tx(Txn), Res. +mark_tx_failed(Txn, Reason) -> + Tx = lookup_tx(Txn), + store_tx(Txn, Tx#tx{fail_reason = Reason}). + +tx_fail_reason(Txn) -> + #tx{fail_reason = Res} = lookup_tx(Txn), + Res. + record_pending_message(Txn, Message) -> Tx = #tx{pending_messages = Pending} = lookup_tx(Txn), store_tx(Txn, Tx#tx{pending_messages = [{Message, false} | Pending]}). @@ -545,10 +558,17 @@ handle_call({deliver, Txn, Message}, _From, State) -> {reply, Delivered, NewState}; handle_call({commit, Txn}, From, State) -> - ok = commit_work(Txn, qname(State)), - %% optimisation: we reply straight away so the sender can continue - gen_server:reply(From, ok), - NewState = process_pending(Txn, State), + NewState = + case tx_fail_reason(Txn) of + none -> ok = commit_work(Txn, qname(State)), + %% optimisation: we reply straight away so the + %% sender can continue + gen_server:reply(From, ok), + process_pending(Txn, State); + Reason -> ok = rollback_work(Txn, qname(State)), + gen_server:reply(From, {error, Reason}), + State + end, erase_tx(Txn), {noreply, NewState}; -- cgit v1.2.1 From 13108a5105e91523f0440a0a9a946a2f6ac28fa3 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Sun, 5 Oct 2008 15:09:49 +0100 Subject: oops --- src/rabbit_alarm.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index d5cbf066..629654e4 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -88,7 +88,7 @@ handle_event({set_alarm,{system_memory_high_watermark,[]}}, State) -> rabbit_amqqueue:conserve_memory(true), {ok, State#alarms{system_memory_high_watermark = true}}; -handle_event({clear_alarm,{system_memory_high_watermark,[]}}, State) -> +handle_event({clear_alarm,{system_memory_high_watermark}}, State) -> rabbit_amqqueue:conserve_memory(false), {ok, State#alarms{system_memory_high_watermark = false}}; -- cgit v1.2.1 From b51560f9342d4ba68e3d9ac811cb7b2998c045e4 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Sun, 5 Oct 2008 15:20:03 +0100 Subject: oops again This time I've actually tested this properly, so it's definitely correct. --- src/rabbit_alarm.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 629654e4..02a783a1 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -84,11 +84,11 @@ handle_call({maybe_conserve_memory, QPid}, handle_call(_Request, State) -> {ok, not_understood, State}. -handle_event({set_alarm,{system_memory_high_watermark,[]}}, State) -> +handle_event({set_alarm, {system_memory_high_watermark, []}}, State) -> rabbit_amqqueue:conserve_memory(true), {ok, State#alarms{system_memory_high_watermark = true}}; -handle_event({clear_alarm,{system_memory_high_watermark}}, State) -> +handle_event({clear_alarm, system_memory_high_watermark}, State) -> rabbit_amqqueue:conserve_memory(false), {ok, State#alarms{system_memory_high_watermark = false}}; -- cgit v1.2.1 From 2369be5794f1ee8baf6b10699af017edf70b1ddd Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Thu, 30 Oct 2008 13:45:28 +0000 Subject: Initial hacking around the idea of a disk-backed queue --- src/intervals.erl | 138 ++++++++++++++++++++++ src/rabbit_disk_backed_queue.erl | 248 +++++++++++++++++++++++++++++++++++++++ src/test_intervals.erl | 144 +++++++++++++++++++++++ 3 files changed, 530 insertions(+) create mode 100644 src/intervals.erl create mode 100644 src/rabbit_disk_backed_queue.erl create mode 100644 src/test_intervals.erl diff --git a/src/intervals.erl b/src/intervals.erl new file mode 100644 index 00000000..b5f09fc5 --- /dev/null +++ b/src/intervals.erl @@ -0,0 +1,138 @@ +-module(intervals). +-export([empty/0, full/0, half/1, single_int/1, single_string/1, range/2, ranges/1]). +-export([is_element/2]). +-export([invert/1, merge/3, intersection/2, union/2, symmetric_difference/2, difference/2]). +-export([first_fit/2]). + +empty() -> + {false, []}. + +full() -> + {true, []}. + +half(N) -> + {false, [N]}. + +single_int(N) -> + {false, [N, N+1]}. + +single_string(N) -> + {false, [N, N ++ [0]]}. + +range(inf, inf) -> + full(); +range(inf, N) -> + {true, [N]}; +range(N, inf) -> + half(N); +range(N, M) + when N >= M -> + empty(); +range(N, M) -> + {false, [N, M]}. + +ranges([]) -> + empty(); +ranges([{N,M} | Ranges]) -> + {Initial, Acc0} = range(N,M), + {Initial, lists:reverse(ranges(lists:reverse(Acc0), Ranges))}. + +ranges(Acc, []) -> + Acc; +ranges(Acc, [{N, M} | Ranges]) + when is_number(N) andalso is_number(M) -> + if + N < M -> + ranges([M, N | Acc], Ranges); + true -> + ranges(Acc, Ranges) + end; +ranges(Acc, [{N, inf}]) -> + [N | Acc]. + +is_element(E, {Initial, Toggles}) -> + is_element(E, Initial, Toggles). + +is_element(_E, Current, []) -> + Current; +is_element(E, Current, [T | _]) + when E < T -> + Current; +is_element(E, Current, [_ | Rest]) -> + is_element(E, not Current, Rest). + +invert({true, Toggles}) -> + {false, Toggles}; +invert({false, Toggles}) -> + {true, Toggles}. + +merge(Op, {S1, T1}, {S2, T2}) -> + Initial = merge1(Op, S1, S2), + {Initial, merge(Op, Initial, [], S1, T1, S2, T2)}. + +intersection(A, B) -> merge(intersection, A, B). +union(A, B) -> merge(union, A, B). +symmetric_difference(A, B) -> merge(symmetric_difference, A, B). +difference(A, B) -> merge(difference, A, B). + +merge1(intersection, A, B) -> A and B; +merge1(union, A, B) -> A or B; +merge1(symmetric_difference, A, B) -> A xor B; +merge1(difference, A, B) -> A and not B. + +merge(Op, SA, TA, S1, [T1 | R1], S2, [T2 | R2]) + when T1 == T2 -> + update(Op, SA, TA, T1, not S1, R1, not S2, R2); +merge(Op, SA, TA, S1, [T1 | R1], S2, R2 = [T2 | _]) + when T1 < T2 -> + update(Op, SA, TA, T1, not S1, R1, S2, R2); +merge(Op, SA, TA, S1, R1, S2, [T2 | R2]) -> + update(Op, SA, TA, T2, S1, R1, not S2, R2); +merge(Op, _SA, TA, S1, [], _S2, R2) -> + finalise(TA, mergeempty(Op, left, S1, R2)); +merge(Op, _SA, TA, _S1, R1, S2, []) -> + finalise(TA, mergeempty(Op, right, S2, R1)). + +update(Op, SA, TA, T1, S1, R1, S2, R2) -> + Merged = merge1(Op, S1, S2), + if + SA == Merged -> + merge(Op, SA, TA, S1, R1, S2, R2); + true -> + merge(Op, Merged, [T1 | TA], S1, R1, S2, R2) + end. + +finalise(TA, Tail) -> + lists:reverse(TA, Tail). + +mergeempty(intersection, _LeftOrRight, true, TailT) -> + TailT; +mergeempty(intersection, _LeftOrRight, false, _TailT) -> + []; +mergeempty(union, _LeftOrRight, true, _TailT) -> + []; +mergeempty(union, _LeftOrRight, false, TailT) -> + TailT; +mergeempty(symmetric_difference, _LeftOrRight, _EmptyS, TailT) -> + TailT; +mergeempty(difference, left, true, TailT) -> + TailT; +mergeempty(difference, right, false, TailT) -> + TailT; +mergeempty(difference, _LeftOrRight, _EmptyS, _TailT) -> + []. + +first_fit(Request, {false, Toggles}) -> + first_fit1(Request, Toggles). + +first_fit1(_Request, []) -> + none; +first_fit1(_Request, [N]) -> + {ok, N}; +first_fit1(inf, [_N, _M | Rest]) -> + first_fit1(inf, Rest); +first_fit1(Request, [N, M | _Rest]) + when M - N >= Request -> + {ok, N}; +first_fit1(Request, [_N, _M | Rest]) -> + first_fit1(Request, Rest). diff --git a/src/rabbit_disk_backed_queue.erl b/src/rabbit_disk_backed_queue.erl new file mode 100644 index 00000000..e14839ac --- /dev/null +++ b/src/rabbit_disk_backed_queue.erl @@ -0,0 +1,248 @@ +-module(rabbit_disk_backed_queue). + +-behaviour(gen_server). + +-export([new/1, destroy/1, + dequeue/1, pushback/2, enqueue/2, enqueue_list/2, + foreach/2, foldl/3, + clear/1, + is_empty/1, + len/1]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([test/0]). + +new(Filename) -> + {ok, Pid} = gen_server:start_link(?MODULE, [Filename], [{debug, [trace]}]), + Pid. + +destroy(P) -> gen_server:call(P, destroy). + +dequeue(P) -> gen_server:call(P, dequeue). +pushback(Item, P) -> gen_server:call(P, {pushback, Item}). +enqueue(Item, P) -> gen_server:call(P, {enqueue, Item}). +enqueue_list(Items, P) -> gen_server:call(P, {enqueue_list, Items}). +foreach(F, P) -> gen_server:call(P, {foreach, F}, infinity). +foldl(F, Acc, P) -> gen_server:call(P, {foldl, F, Acc}, infinity). +clear(P) -> gen_server:call(P, clear). +is_empty(P) -> gen_server:call(P, is_empty). +len(P) -> gen_server:call(P, len). + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +-define(THRESHOLD, 5). + +-define(MAGIC_HEADER, <<"DBQ0">>). + +-record(state, {filename, dev, gaps, read_pos, tail_pos, + pushback, + buffer, buffer_length, + total_length}). + +init([Filename]) -> + {ok, Dev} = file:open(Filename, [read, write, raw, binary, delayed_write, read_ahead]), + ok = reset_dev(Dev), + fresh_state(Filename, Dev). + +reset_dev(Dev) -> + {ok, 0} = file:position(Dev, 0), + ok = file:truncate(Dev), + ok = file:write(Dev, ?MAGIC_HEADER), + ok. + +fresh_state(Filename, Dev) -> + {ok, #state{filename = Filename, + dev = Dev, + gaps = intervals:range(size(?MAGIC_HEADER), inf), + read_pos = 0, + tail_pos = 0, + pushback = [], + buffer = [], + buffer_length = 0, + total_length = 0}}. + +chunk_at(Dev, ReadPos) + when ReadPos > 0 -> + {ok, ReadPos} = file:position(Dev, ReadPos), + {ok, <>} = file:read(Dev, 16), + {ok, ChunkBin} = file:read(Dev, ChunkLen), + {binary_to_term(ChunkBin), ChunkLen, NextPos}. + +pop_chunk(State = #state{dev = Dev, + pushback = [], + read_pos = ReadPos, + tail_pos = OldTailPos, + gaps = OldGaps, + total_length = OldLen}) -> + {[Item | Chunk], ChunkLen, NextPos} = chunk_at(Dev, ReadPos), + NewTailPos = if + OldTailPos == ReadPos + 8 -> 0; + true -> OldTailPos + end, + NewGaps = intervals:union(OldGaps, + intervals:range(ReadPos, ReadPos + ChunkLen + 16)), + case intervals:first_fit(inf, NewGaps) of + none -> ok; + {ok, FirstUnusedByte} -> + {ok, FirstUnusedByte} = file:position(Dev, FirstUnusedByte), + ok = file:truncate(Dev) + end, + {Item, State#state{pushback = Chunk, + read_pos = NextPos, + tail_pos = NewTailPos, + gaps = NewGaps, + total_length = OldLen - 1}}. + +maybe_evict(State = #state{buffer_length = BufLen}) + when BufLen < ?THRESHOLD -> + State; +maybe_evict(State = #state{dev = Dev, + gaps = OldGaps, + read_pos = OldReadPos, + tail_pos = OldTailPos, + buffer = Buffer}) -> + ChunkBin = term_to_binary(lists:reverse(Buffer)), + RequiredSpace = size(ChunkBin) + 16, + {ok, FirstFit} = intervals:first_fit(RequiredSpace, OldGaps), + NewGaps = intervals:difference(OldGaps, intervals:range(FirstFit, FirstFit + RequiredSpace)), + {ok, FirstFit} = file:position(Dev, FirstFit), + ok = file:write(Dev, [<<(size(ChunkBin)):64/unsigned, 0:64/unsigned>>, ChunkBin]), + case OldTailPos of + 0 -> ok; + _ -> + {ok, OldTailPos} = file:position(Dev, OldTailPos), + ok = file:write(Dev, <>) + end, + NewReadPos = if + OldReadPos == 0 -> FirstFit; + true -> OldReadPos + end, + State#state{gaps = NewGaps, + read_pos = NewReadPos, + tail_pos = FirstFit + 8, + buffer = [], + buffer_length = 0}. + +foldl_chunk(_ChunkFun, Acc, _Dev, 0) -> + Acc; +foldl_chunk(ChunkFun, Acc, Dev, ReadPos) -> + {Chunk, _ChunkLen, NextPos} = chunk_at(Dev, ReadPos), + NewAcc = ChunkFun(Chunk, Acc), + foldl_chunk(ChunkFun, NewAcc, Dev, NextPos). + +handle_call(destroy, _From, State) -> + {stop, normal, ok, State}; +handle_call(dequeue, _From, State = #state{total_length = 0}) -> + {reply, empty, State}; +handle_call(dequeue, _From, State = #state{pushback = [Item | Rest], + total_length = OldLen}) -> + {reply, {ok, Item}, State#state{pushback = Rest, total_length = OldLen - 1}}; +handle_call(dequeue, _From, State = #state{read_pos = 0, + buffer = OldBuf, + total_length = OldLen}) -> + [Item | NewPushback] = lists:reverse(OldBuf), + {reply, {ok, Item}, State#state{pushback = NewPushback, + buffer = [], + buffer_length = 0, + total_length = OldLen - 1}}; +handle_call(dequeue, _From, State) -> + {Item, NewState} = pop_chunk(State), + {reply, {ok, Item}, NewState}; + +handle_call({pushback, Item}, _From, State = #state{pushback = Rest, total_length = OldLen}) -> + {reply, ok, State#state{pushback = [Item | Rest], total_length = OldLen + 1}}; +handle_call({enqueue, Item}, _From, State = #state{buffer = OldBuf, + buffer_length = OldBufLen, + total_length = OldLen}) -> + {reply, ok, maybe_evict(State#state{buffer = [Item | OldBuf], + buffer_length = OldBufLen + 1, + total_length = OldLen + 1})}; +handle_call({enqueue_list, Items}, _From, State = #state{buffer = OldBuf, + buffer_length = OldBufLen, + total_length = OldLen}) -> + NItems = length(Items), + {reply, ok, maybe_evict(State#state{buffer = lists:reverse(Items, OldBuf), + buffer_length = OldBufLen + NItems, + total_length = OldLen + NItems})}; +handle_call({foreach, F}, _From, State = #state{dev = Dev, + read_pos = ReadPos, + pushback = Pushback, + buffer = Buffer}) -> + ok = lists:foreach(F, Pushback), + ok = foldl_chunk(fun (Value, ok) -> ok = lists:foreach(F, Value) end, ok, Dev, ReadPos), + ok = lists:foreach(F, lists:reverse(Buffer)), + {reply, ok, State}; +handle_call({foldl, F, Acc0}, _From, State = #state{dev = Dev, + read_pos = ReadPos, + pushback = Pushback, + buffer = Buffer}) -> + Acc1 = lists:foldl(F, Acc0, Pushback), + Acc2 = foldl_chunk(fun (Value, AccN) -> lists:foldl(F, AccN, Value) end, Acc1, Dev, ReadPos), + Acc3 = lists:foldl(F, Acc2, lists:reverse(Buffer)), + {reply, Acc3, State}; +handle_call(clear, _From, #state{filename = Filename, dev = Dev}) -> + ok = reset_dev(Dev), + {reply, ok, fresh_state(Filename, Dev)}; +handle_call(is_empty, _From, State = #state{total_length = Len}) -> + {reply, case Len of + 0 -> true; + _ -> false + end, State}; +handle_call(len, _From, State = #state{total_length = Len}) -> + {reply, Len, State}; +handle_call(_Request, _From, State) -> + exit({?MODULE, unexpected_call, _Request, _From, State}). + +handle_cast(_Msg, State) -> + exit({?MODULE, unexpected_cast, _Msg, State}). + +handle_info(_Info, State) -> + exit({?MODULE, unexpected_info, _Info, State}). + +terminate(_Reason, _State = #state{filename = Filename, dev = Dev}) -> + _ProbablyOk = file:close(Dev), + ok = file:delete(Filename), + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +-define(TESTFILE, "qqq.tmp"). + +test_insert_upto(_Pid, Lo, Hi) + when Lo >= Hi -> + ok; +test_insert_upto(Pid, Lo, Hi) -> + ok = ?MODULE:enqueue(Lo, Pid), + test_insert_upto(Pid, Lo + 1, Hi). + +test_remove_upto(Pid, Lo, Hi) + when Lo >= Hi -> + empty = ?MODULE:dequeue(Pid), + ok; +test_remove_upto(Pid, Lo, Hi) -> + {ok, Lo} = ?MODULE:dequeue(Pid), + test_remove_upto(Pid, Lo + 1, Hi). + +test() -> + Pid = ?MODULE:new(?TESTFILE), + Max = trunc(?THRESHOLD * 2.5), + Mid = trunc(Max / 2), + ok = test_insert_upto(Pid, 0, Max), + AllItems = lists:seq(0, Max - 1), + AllItems = lists:reverse(?MODULE:foldl(fun (X, Acc) -> [X | Acc] end, [], Pid)), + ok = test_remove_upto(Pid, 0, Max), + + ok = test_insert_upto(Pid, 0, Mid), + {ok, 0} = ?MODULE:dequeue(Pid), + ok = ?MODULE:pushback(abc, Pid), + ok = test_insert_upto(Pid, Mid, Max), + {ok, abc} = ?MODULE:dequeue(Pid), + ok = test_remove_upto(Pid, 1, Max), + + %% ok = ?MODULE:destroy(Pid), + ok. diff --git a/src/test_intervals.erl b/src/test_intervals.erl new file mode 100644 index 00000000..509d1c46 --- /dev/null +++ b/src/test_intervals.erl @@ -0,0 +1,144 @@ +-module(test_intervals). + +-export([all/0]). +-compile(export_all). + +all() -> + {failing, []} = {failing, failing()}, + ok = ranges_tests(), + ok = is_element_tests(), + ok = first_fit_tests(), + ok. + +cases() -> + [{intersection,false,false,{false,[2,3,6,7,9,10]}}, + {intersection,false,true,{false,[1,2,3,4,12,13]}}, + {intersection,true,false,{false,[5,6,7,8,11,12,13]}}, + {intersection,true,true,{true,[1,4,5,8,9,10,11]}}, + {union,false,false,{false,[1,4,5,8,9,10,11]}}, + {union,false,true,{true,[5,6,7,8,11,12,13]}}, + {union,true,false,{true,[1,2,3,4,12,13]}}, + {union,true,true,{true,[2,3,6,7,9,10]}}, + {symmetric_difference,false,false,{false,[1,2,3,4,5,6,7,8,11]}}, + {symmetric_difference,false,true,{true,[1,2,3,4,5,6,7,8,11]}}, + {symmetric_difference,true,false,{true,[1,2,3,4,5,6,7,8,11]}}, + {symmetric_difference,true,true,{false,[1,2,3,4,5,6,7,8,11]}}, + {difference,false,false,{false,[1,2,3,4,12,13]}}, + {difference,false,true,{false,[2,3,6,7,9,10]}}, + {difference,true,false,{true,[1,4,5,8,9,10,11]}}, + {difference,true,true,{false,[5,6,7,8,11,12,13]}}]. + +failing() -> + lists:flatmap(fun run1/1, cases()). + +run1({Op, A, B, Expected}) -> + case merge(Op, A, B) of + Expected -> + []; + Actual -> + [{Op, A, B, Actual}] + end. + +%% 0 1 2 3 4 5 6 7 8 9 A B C D E F +%% | | | | | | | | | | | | | | | | +%% ------ -- -- -- +%% -- ------ -- -- ----==== + +topline() -> [1, 4, 6, 7, 9, 10, 12, 13]. +bottomline() -> [2, 3, 5, 8, 9, 10, 11, 12, 13]. + +merge(Op, S1, S2) -> + intervals:merge(Op, {S1, topline()}, {S2, bottomline()}). + +rendercase({Op, S1, S2, Expected}) -> + I1 = {S1, topline()}, + I2 = {S2, bottomline()}, + Result = intervals:merge(Op, I1, I2), + io:format("********* ~p:~n", [Op]), + io:format("I1: " ++ renderline(I1)), + io:format("I2: " ++ renderline(I2)), + io:format("Actual: " ++ renderline(Result)), + io:format("Expected: " ++ renderline(Expected)), + io:format("~n"), + Result. + +renderall() -> + lists:foreach(fun rendercase/1, cases()). + +renderline({Initial, Toggles}) -> + lists:flatten([renderfirstlast(Initial), renderline(0, Initial, Toggles), 13,10]). + +renderfirstlast(true) -> + "===="; +renderfirstlast(false) -> + " ". + +rendercell(true) -> + "--"; +rendercell(false) -> + " ". + +renderline(Pos, State, []) + when Pos < 15 -> + [rendercell(State), renderline(Pos + 1, State, [])]; +renderline(_Pos, State, []) -> + renderfirstlast(State); +renderline(Pos, State, Rest = [Toggle | _]) + when Pos < Toggle -> + [rendercell(State), renderline(Pos + 1, State, Rest)]; +renderline(Pos, State, [Toggle | Rest]) + when Pos == Toggle -> + [rendercell(not State), renderline(Pos + 1, not State, Rest)]. + +ranges_tests() -> + Empty = intervals:empty(), + {range_empty_test, Empty} = {range_empty_test, intervals:range(22, 22)}, + BottomLine = bottomline(), + {ranges_test1, {false, BottomLine}} = {ranges_test1, intervals:ranges([{2, 3}, + {5, 8}, + {9, 10}, + {11, 12}, + {13, inf}])}, + ok. + +is_element_test(Cases, R) -> + NR = intervals:invert(R), + lists:foreach(fun ({E, Expected}) -> + {E, Expected} = {E, intervals:is_element(E, R)} + end, Cases), + lists:foreach(fun ({E, Expected}) -> + NotExpected = not Expected, + {E, NotExpected} = {E, intervals:is_element(E, NR)} + end, Cases), + ok. + +is_element_tests() -> + ok = is_element_test([{5, true}, + {-5, false}, + {15, false}, + {0, true}, + {10, false}, + {10.1, false}, + {0.9, true}], + intervals:range(0, 10)), + ok = is_element_test([{"", false}, + {"just", true}, + {"maybe", true}, + {"not", false}, + {"testing", false}, + {"zow", true}], + intervals:union(intervals:range("a", "n"), + intervals:range("z", "{"))), + ok. + +first_fit_tests() -> + R1 = intervals:ranges([{2, 3}, {5, 10}]), + {ok, 2} = intervals:first_fit(1, R1), + {ok, 5} = intervals:first_fit(2, R1), + {ok, 5} = intervals:first_fit(5, R1), + none = intervals:first_fit(6, R1), + none = intervals:first_fit(inf, R1), + R2 = intervals:union(R1, intervals:range(20, inf)), + {ok, 20} = intervals:first_fit(6, R2), + {ok, 20} = intervals:first_fit(inf, R2), + ok. -- cgit v1.2.1 From 848997728996d31b46d85e7466821f0471e33c32 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Thu, 30 Oct 2008 16:34:06 +0000 Subject: Analogous RAM-backed queue --- src/rabbit_ram_backed_queue.erl | 114 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 114 insertions(+) create mode 100644 src/rabbit_ram_backed_queue.erl diff --git a/src/rabbit_ram_backed_queue.erl b/src/rabbit_ram_backed_queue.erl new file mode 100644 index 00000000..815a5ef8 --- /dev/null +++ b/src/rabbit_ram_backed_queue.erl @@ -0,0 +1,114 @@ +-module(rabbit_ram_backed_queue). + +-behaviour(gen_server). + +-export([new/0, destroy/1, + dequeue/1, pushback/2, enqueue/2, enqueue_list/2, + foreach/2, foldl/3, + clear/1, + is_empty/1, + len/1]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([test/0]). + +new() -> + {ok, Pid} = gen_server:start_link(?MODULE, [], [{debug, [trace]}]), + Pid. + +destroy(P) -> gen_server:call(P, destroy). + +dequeue(P) -> gen_server:call(P, dequeue). +pushback(Item, P) -> gen_server:call(P, {pushback, Item}). +enqueue(Item, P) -> gen_server:call(P, {enqueue, Item}). +enqueue_list(Items, P) -> gen_server:call(P, {enqueue_list, Items}). +foreach(F, P) -> gen_server:call(P, {foreach, F}, infinity). +foldl(F, Acc, P) -> gen_server:call(P, {foldl, F, Acc}, infinity). +clear(P) -> gen_server:call(P, clear). +is_empty(P) -> gen_server:call(P, is_empty). +len(P) -> gen_server:call(P, len). + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +init([]) -> + {ok, queue:new()}. + +handle_call(destroy, _From, Q) -> + {stop, normal, ok, Q}; +handle_call(dequeue, _From, Q) -> + case queue:out(Q) of + {{value, Item}, NextQ} -> + {reply, {ok, Item}, NextQ}; + {empty, _} -> + {reply, empty, Q} + end; +handle_call({pushback, Item}, _From, Q) -> + {reply, ok, queue:in_r(Item, Q)}; +handle_call({enqueue, Item}, _From, Q) -> + {reply, ok, queue:in(Item, Q)}; +handle_call({enqueue_list, Items}, _From, Q) -> + {reply, ok, queue:join(Q, queue:from_list(Items))}; +handle_call({foreach, F}, _From, Q) -> + ok = lists:foreach(F, queue:to_list(Q)), + {reply, ok, Q}; +handle_call({foldl, F, Acc0}, _From, Q) -> + Acc1 = lists:foldl(F, Acc0, queue:to_list(Q)), + {reply, Acc1, Q}; +handle_call(clear, _From, _Q) -> + {reply, ok, queue:new()}; +handle_call(is_empty, _From, Q) -> + {reply, queue:is_empty(Q), Q}; +handle_call(len, _From, Q) -> + {reply, queue:len(Q), Q}; +handle_call(_Request, _From, Q) -> + exit({?MODULE, unexpected_call, _Request, _From, Q}). + +handle_cast(_Msg, Q) -> + exit({?MODULE, unexpected_cast, _Msg, Q}). + +handle_info(_Info, Q) -> + exit({?MODULE, unexpected_info, _Info, Q}). + +terminate(_Reason, _Q) -> + ok. + +code_change(_OldVsn, Q, _Extra) -> + {ok, Q}. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +test_insert_upto(_Pid, Lo, Hi) + when Lo >= Hi -> + ok; +test_insert_upto(Pid, Lo, Hi) -> + ok = ?MODULE:enqueue(Lo, Pid), + test_insert_upto(Pid, Lo + 1, Hi). + +test_remove_upto(Pid, Lo, Hi) + when Lo >= Hi -> + empty = ?MODULE:dequeue(Pid), + ok; +test_remove_upto(Pid, Lo, Hi) -> + {ok, Lo} = ?MODULE:dequeue(Pid), + test_remove_upto(Pid, Lo + 1, Hi). + +test() -> + Pid = ?MODULE:new(), + Max = 11, + Mid = trunc(Max / 2), + ok = test_insert_upto(Pid, 0, Max), + AllItems = lists:seq(0, Max - 1), + AllItems = lists:reverse(?MODULE:foldl(fun (X, Acc) -> [X | Acc] end, [], Pid)), + ok = test_remove_upto(Pid, 0, Max), + + ok = test_insert_upto(Pid, 0, Mid), + {ok, 0} = ?MODULE:dequeue(Pid), + ok = ?MODULE:pushback(abc, Pid), + ok = test_insert_upto(Pid, Mid, Max), + {ok, abc} = ?MODULE:dequeue(Pid), + ok = test_remove_upto(Pid, 1, Max), + + %% ok = ?MODULE:destroy(Pid), + ok. -- cgit v1.2.1 From 2d3182ece302dea75aea5f659954a834888f3338 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Wed, 5 Nov 2008 16:29:20 +0000 Subject: Experiment with speed of various options --- src/rabbit_disk_backed_queue.erl | 8 +- src/rabbit_disk_backed_queue_nogen.erl | 202 +++++++++++++++++++++++++++++++++ src/rabbit_ram_backed_queue.erl | 8 +- src/rabbit_ram_backed_queue_nogen.erl | 69 +++++++++++ src/speed_test_queue_backends.erl | 97 ++++++++++++++++ 5 files changed, 376 insertions(+), 8 deletions(-) create mode 100644 src/rabbit_disk_backed_queue_nogen.erl create mode 100644 src/rabbit_ram_backed_queue_nogen.erl create mode 100644 src/speed_test_queue_backends.erl diff --git a/src/rabbit_disk_backed_queue.erl b/src/rabbit_disk_backed_queue.erl index e14839ac..251761de 100644 --- a/src/rabbit_disk_backed_queue.erl +++ b/src/rabbit_disk_backed_queue.erl @@ -14,8 +14,8 @@ -export([test/0]). -new(Filename) -> - {ok, Pid} = gen_server:start_link(?MODULE, [Filename], [{debug, [trace]}]), +new([{backing_filename, Filename}]) -> + {ok, Pid} = gen_server:start_link(?MODULE, [Filename], []), Pid. destroy(P) -> gen_server:call(P, destroy). @@ -32,7 +32,7 @@ len(P) -> gen_server:call(P, len). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% --define(THRESHOLD, 5). +-define(THRESHOLD, 100). -define(MAGIC_HEADER, <<"DBQ0">>). @@ -229,7 +229,7 @@ test_remove_upto(Pid, Lo, Hi) -> test_remove_upto(Pid, Lo + 1, Hi). test() -> - Pid = ?MODULE:new(?TESTFILE), + Pid = ?MODULE:new([{backing_filename, ?TESTFILE}]), Max = trunc(?THRESHOLD * 2.5), Mid = trunc(Max / 2), ok = test_insert_upto(Pid, 0, Max), diff --git a/src/rabbit_disk_backed_queue_nogen.erl b/src/rabbit_disk_backed_queue_nogen.erl new file mode 100644 index 00000000..c5d709df --- /dev/null +++ b/src/rabbit_disk_backed_queue_nogen.erl @@ -0,0 +1,202 @@ +-module(rabbit_disk_backed_queue_nogen). + +-export([new/1, destroy/1, + dequeue/1, pushback/2, enqueue/2, enqueue_list/2, + foreach/2, foldl/3, + clear/1, + is_empty/1, + len/1]). + +new([{backing_filename, Filename}]) -> + spawn_link(fun () -> init([Filename]) end). + +destroy(P) -> rpc(P, destroy). + +dequeue(P) -> rpc(P, dequeue). +pushback(Item, P) -> rpc(P, {pushback, Item}). +enqueue(Item, P) -> rpc(P, {enqueue, Item}). +enqueue_list(Items, P) -> rpc(P, {enqueue_list, Items}). +foreach(F, P) -> rpc(P, {foreach, F}). +foldl(F, Acc, P) -> rpc(P, {foldl, F, Acc}). +clear(P) -> rpc(P, clear). +is_empty(P) -> rpc(P, is_empty). +len(P) -> rpc(P, len). + +rpc(P, Request) -> + K = make_ref(), + P ! {self(), K, Request}, + receive {K, Reply} -> Reply end. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +-define(THRESHOLD, 100). + +-define(MAGIC_HEADER, <<"DBQ0">>). + +-record(state, {filename, dev, gaps, read_pos, tail_pos, + pushback, + buffer, buffer_length, + total_length}). + +init([Filename]) -> + {ok, Dev} = file:open(Filename, [read, write, raw, binary, delayed_write, read_ahead]), + ok = reset_dev(Dev), + mainloop(fresh_state(Filename, Dev)). + +mainloop(State) -> + receive + {Requestor, Key, destroy} -> + Requestor ! {Key, ok}, + ok; + {Requestor, Key, Request} -> + {reply, Reply, NewState} = handle(Request, State), + Requestor ! {Key, Reply}, + mainloop(NewState) + end. + +reset_dev(Dev) -> + {ok, 0} = file:position(Dev, 0), + ok = file:truncate(Dev), + ok = file:write(Dev, ?MAGIC_HEADER), + ok. + +fresh_state(Filename, Dev) -> + #state{filename = Filename, + dev = Dev, + gaps = intervals:range(size(?MAGIC_HEADER), inf), + read_pos = 0, + tail_pos = 0, + pushback = [], + buffer = [], + buffer_length = 0, + total_length = 0}. + +chunk_at(Dev, ReadPos) + when ReadPos > 0 -> + {ok, ReadPos} = file:position(Dev, ReadPos), + {ok, <>} = file:read(Dev, 16), + {ok, ChunkBin} = file:read(Dev, ChunkLen), + {binary_to_term(ChunkBin), ChunkLen, NextPos}. + +pop_chunk(State = #state{dev = Dev, + pushback = [], + read_pos = ReadPos, + tail_pos = OldTailPos, + gaps = OldGaps, + total_length = OldLen}) -> + {[Item | Chunk], ChunkLen, NextPos} = chunk_at(Dev, ReadPos), + NewTailPos = if + OldTailPos == ReadPos + 8 -> 0; + true -> OldTailPos + end, + NewGaps = intervals:union(OldGaps, + intervals:range(ReadPos, ReadPos + ChunkLen + 16)), + case intervals:first_fit(inf, NewGaps) of + none -> ok; + {ok, FirstUnusedByte} -> + {ok, FirstUnusedByte} = file:position(Dev, FirstUnusedByte), + ok = file:truncate(Dev) + end, + {Item, State#state{pushback = Chunk, + read_pos = NextPos, + tail_pos = NewTailPos, + gaps = NewGaps, + total_length = OldLen - 1}}. + +maybe_evict(State = #state{buffer_length = BufLen}) + when BufLen < ?THRESHOLD -> + State; +maybe_evict(State = #state{dev = Dev, + gaps = OldGaps, + read_pos = OldReadPos, + tail_pos = OldTailPos, + buffer = Buffer}) -> + ChunkBin = term_to_binary(lists:reverse(Buffer)), + RequiredSpace = size(ChunkBin) + 16, + {ok, FirstFit} = intervals:first_fit(RequiredSpace, OldGaps), + NewGaps = intervals:difference(OldGaps, intervals:range(FirstFit, FirstFit + RequiredSpace)), + {ok, FirstFit} = file:position(Dev, FirstFit), + ok = file:write(Dev, [<<(size(ChunkBin)):64/unsigned, 0:64/unsigned>>, ChunkBin]), + case OldTailPos of + 0 -> ok; + _ -> + {ok, OldTailPos} = file:position(Dev, OldTailPos), + ok = file:write(Dev, <>) + end, + NewReadPos = if + OldReadPos == 0 -> FirstFit; + true -> OldReadPos + end, + State#state{gaps = NewGaps, + read_pos = NewReadPos, + tail_pos = FirstFit + 8, + buffer = [], + buffer_length = 0}. + +foldl_chunk(_ChunkFun, Acc, _Dev, 0) -> + Acc; +foldl_chunk(ChunkFun, Acc, Dev, ReadPos) -> + {Chunk, _ChunkLen, NextPos} = chunk_at(Dev, ReadPos), + NewAcc = ChunkFun(Chunk, Acc), + foldl_chunk(ChunkFun, NewAcc, Dev, NextPos). + +handle(dequeue, State = #state{total_length = 0}) -> + {reply, empty, State}; +handle(dequeue, State = #state{pushback = [Item | Rest], + total_length = OldLen}) -> + {reply, {ok, Item}, State#state{pushback = Rest, total_length = OldLen - 1}}; +handle(dequeue, State = #state{read_pos = 0, + buffer = OldBuf, + total_length = OldLen}) -> + [Item | NewPushback] = lists:reverse(OldBuf), + {reply, {ok, Item}, State#state{pushback = NewPushback, + buffer = [], + buffer_length = 0, + total_length = OldLen - 1}}; +handle(dequeue, State) -> + {Item, NewState} = pop_chunk(State), + {reply, {ok, Item}, NewState}; + +handle({pushback, Item}, State = #state{pushback = Rest, total_length = OldLen}) -> + {reply, ok, State#state{pushback = [Item | Rest], total_length = OldLen + 1}}; +handle({enqueue, Item}, State = #state{buffer = OldBuf, + buffer_length = OldBufLen, + total_length = OldLen}) -> + {reply, ok, maybe_evict(State#state{buffer = [Item | OldBuf], + buffer_length = OldBufLen + 1, + total_length = OldLen + 1})}; +handle({enqueue_list, Items}, State = #state{buffer = OldBuf, + buffer_length = OldBufLen, + total_length = OldLen}) -> + NItems = length(Items), + {reply, ok, maybe_evict(State#state{buffer = lists:reverse(Items, OldBuf), + buffer_length = OldBufLen + NItems, + total_length = OldLen + NItems})}; +handle({foreach, F}, State = #state{dev = Dev, + read_pos = ReadPos, + pushback = Pushback, + buffer = Buffer}) -> + ok = lists:foreach(F, Pushback), + ok = foldl_chunk(fun (Value, ok) -> ok = lists:foreach(F, Value) end, ok, Dev, ReadPos), + ok = lists:foreach(F, lists:reverse(Buffer)), + {reply, ok, State}; +handle({foldl, F, Acc0}, State = #state{dev = Dev, + read_pos = ReadPos, + pushback = Pushback, + buffer = Buffer}) -> + Acc1 = lists:foldl(F, Acc0, Pushback), + Acc2 = foldl_chunk(fun (Value, AccN) -> lists:foldl(F, AccN, Value) end, Acc1, Dev, ReadPos), + Acc3 = lists:foldl(F, Acc2, lists:reverse(Buffer)), + {reply, Acc3, State}; +handle(clear, #state{filename = Filename, dev = Dev}) -> + ok = reset_dev(Dev), + {reply, ok, fresh_state(Filename, Dev)}; +handle(is_empty, State = #state{total_length = Len}) -> + {reply, case Len of + 0 -> true; + _ -> false + end, State}; +handle(len, State = #state{total_length = Len}) -> + {reply, Len, State}; +handle(_Request, State) -> + exit({?MODULE, unexpected_call, _Request, State}). diff --git a/src/rabbit_ram_backed_queue.erl b/src/rabbit_ram_backed_queue.erl index 815a5ef8..bae2a38d 100644 --- a/src/rabbit_ram_backed_queue.erl +++ b/src/rabbit_ram_backed_queue.erl @@ -2,7 +2,7 @@ -behaviour(gen_server). --export([new/0, destroy/1, +-export([new/1, destroy/1, dequeue/1, pushback/2, enqueue/2, enqueue_list/2, foreach/2, foldl/3, clear/1, @@ -14,8 +14,8 @@ -export([test/0]). -new() -> - {ok, Pid} = gen_server:start_link(?MODULE, [], [{debug, [trace]}]), +new(_Options) -> + {ok, Pid} = gen_server:start_link(?MODULE, [], []), Pid. destroy(P) -> gen_server:call(P, destroy). @@ -95,7 +95,7 @@ test_remove_upto(Pid, Lo, Hi) -> test_remove_upto(Pid, Lo + 1, Hi). test() -> - Pid = ?MODULE:new(), + Pid = ?MODULE:new([]), Max = 11, Mid = trunc(Max / 2), ok = test_insert_upto(Pid, 0, Max), diff --git a/src/rabbit_ram_backed_queue_nogen.erl b/src/rabbit_ram_backed_queue_nogen.erl new file mode 100644 index 00000000..84adf0ec --- /dev/null +++ b/src/rabbit_ram_backed_queue_nogen.erl @@ -0,0 +1,69 @@ +-module(rabbit_ram_backed_queue_nogen). + +-export([new/1, destroy/1, + dequeue/1, pushback/2, enqueue/2, enqueue_list/2, + foreach/2, foldl/3, + clear/1, + is_empty/1, + len/1]). + +new(_Options) -> + spawn_link(fun () -> mainloop(queue:new()) end). + +destroy(P) -> rpc(P, destroy). + +dequeue(P) -> rpc(P, dequeue). +pushback(Item, P) -> rpc(P, {pushback, Item}). +enqueue(Item, P) -> rpc(P, {enqueue, Item}). +enqueue_list(Items, P) -> rpc(P, {enqueue_list, Items}). +foreach(F, P) -> rpc(P, {foreach, F}). +foldl(F, Acc, P) -> rpc(P, {foldl, F, Acc}). +clear(P) -> rpc(P, clear). +is_empty(P) -> rpc(P, is_empty). +len(P) -> rpc(P, len). + +rpc(P, Request) -> + K = make_ref(), + P ! {self(), K, Request}, + receive {K, Reply} -> Reply end. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +mainloop(Q) -> + receive + {Requestor, Key, destroy} -> + Requestor ! {Key, ok}, + ok; + {Requestor, Key, Request} -> + {Reply, NewQ} = handle(Request, Q), + Requestor ! {Key, Reply}, + mainloop(NewQ) + end. + +handle(dequeue, Q) -> + case queue:out(Q) of + {{value, Item}, NextQ} -> + {{ok, Item}, NextQ}; + {empty, _} -> + {empty, Q} + end; +handle({pushback, Item}, Q) -> + {ok, queue:in_r(Item, Q)}; +handle({enqueue, Item}, Q) -> + {ok, queue:in(Item, Q)}; +handle({enqueue_list, Items}, Q) -> + {ok, queue:join(Q, queue:from_list(Items))}; +handle({foreach, F}, Q) -> + ok = lists:foreach(F, queue:to_list(Q)), + {ok, Q}; +handle({foldl, F, Acc0}, Q) -> + Acc1 = lists:foldl(F, Acc0, queue:to_list(Q)), + {Acc1, Q}; +handle(clear, _Q) -> + {ok, queue:new()}; +handle(is_empty, Q) -> + {queue:is_empty(Q), Q}; +handle(len, Q) -> + {queue:len(Q), Q}; +handle(_Request, Q) -> + exit({?MODULE, unexpected_call, _Request, Q}). diff --git a/src/speed_test_queue_backends.erl b/src/speed_test_queue_backends.erl new file mode 100644 index 00000000..d63a12c9 --- /dev/null +++ b/src/speed_test_queue_backends.erl @@ -0,0 +1,97 @@ +-module(speed_test_queue_backends). + +-compile([export_all]). + +-define(M, rabbit_disk_backed_queue). +%%-define(M, rabbit_disk_backed_queue_nogen). +%%-define(M, rabbit_ram_backed_queue). +%%-define(M, rabbit_ram_backed_queue_nogen). + +fill_drain_noproc(N, Size) -> + summarize(fill_drain_noproc, N, Size, + fun (_Q) -> + drain_f(enqueue_n_f(queue:new(), N, blob_for_size(Size))) + end). + +fill_drain(N, Size) -> + summarize(fill_drain, N, Size, fun (Q) -> + enqueue_n(Q, N, blob_for_size(Size)), + drain(Q) + end). + +fill_destroy(N, Size) -> + summarize(fill_destroy, N, Size, fun (Q) -> + enqueue_n(Q, N, blob_for_size(Size)) + end). + +simultaneous_drain(N, Size) -> + summarize(simultaneous_drain, N, Size, + fun (Q) -> + Parent = self(), + spawn_link(fun () -> + enqueue_n(Q, N, blob_for_size(Size)), + ?M:enqueue(done, Q), + Parent ! done1 + end), + spawn_link(fun () -> + drain_until(done, Q), + Parent ! done2 + end), + receive done1 -> ok end, + receive done2 -> ok end + end). + +blob_for_size(Size) -> + SizeBits = Size * 8, + <<99:SizeBits/integer>>. + +enqueue_n_f(Q, 0, _Blob) -> + Q; +enqueue_n_f(Q, N, Blob) -> + enqueue_n_f(queue:in(Blob, Q), N - 1, Blob). + +drain_f(Q) -> + case queue:out(Q) of + {{value, _}, Q1} -> + drain_f(Q1); + {empty, _} -> + ok + end. + +enqueue_n(_Q, 0, _Blob) -> + ok; +enqueue_n(Q, N, Blob) -> + ?M:enqueue(Blob, Q), + enqueue_n(Q, N - 1, Blob). + +drain_until(What, Q) -> + case ?M:dequeue(Q) of + empty -> + drain_until(What, Q); + {ok, What} -> + ok; + {ok, _Other} -> + drain_until(What, Q) + end. + +drain(Q) -> + case ?M:dequeue(Q) of + empty -> + ok; + {ok, _Item} -> + drain(Q) + end. + +summarize(Kind, N, Size, F) -> + TimeMicrosec = with_q(F), + io:format("~p(~p, ~p) using ~p: ~p microsec, ~p Hz~n", + [Kind, N, Size, ?M, + TimeMicrosec, + float(N) / (TimeMicrosec / 1000000.0)]), + ok. + +with_q(F) -> + Q = ?M:new([{backing_filename, "/tmp/speed_test_queue_backends.tmp"}]), + {TimeMicrosec, _Result} = timer:tc(erlang, apply, [F, [Q]]), + ok = ?M:destroy(Q), + TimeMicrosec. -- cgit v1.2.1 From ef58ee48db20068136f846174e17b599141d69da Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Fri, 14 Nov 2008 23:39:08 +0000 Subject: work around OTP-7025 also simplify the match slightly --- src/rabbit_exchange.erl | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index a8c54438..58b8d7d6 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -268,9 +268,17 @@ exchanges_for_queue(QueueName) -> has_bindings(ExchangeName) -> MatchHead = #route{binding = #binding{exchange_name = ExchangeName, - queue_name = '$1', _ = '_'}}, - continue(mnesia:select(route, [{MatchHead, [], ['$1']}], 1, read)). + try + continue(mnesia:select(route, [{MatchHead, [], ['$_']}], 1, read)) + catch exit:{aborted, {badarg, _}} -> + %% work around OTP-7025, which was fixed in R12B-1, by + %% falling back on a less efficient method + case mnesia:match_object(MatchHead) of + [] -> false; + [_|_] -> true + end + end. continue('$end_of_table') -> false; continue({[_|_], _}) -> true; -- cgit v1.2.1 From cc86260fcf9dbc5432df6365113f73197120f4d4 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 25 Nov 2008 13:07:59 +0000 Subject: First pass at a simple memory supervisor for Linux. --- src/rabbit.erl | 2 +- src/rabbit_alarm.erl | 44 ++++++++++++------ src/rabbit_linux_memory.erl | 108 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 138 insertions(+), 16 deletions(-) create mode 100644 src/rabbit_linux_memory.erl diff --git a/src/rabbit.erl b/src/rabbit.erl index a33c5b7b..cd2bda97 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -29,7 +29,7 @@ -export([start/0, stop/0, stop_and_halt/0, status/0, rotate_logs/1]). --export([start/2, stop/1]). +-export([start/2, stop/1, start_child/1]). -export([log_location/1]). diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index d9c1c450..5ba88a30 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -50,21 +50,35 @@ %%---------------------------------------------------------------------------- start() -> - %% The default memsup check interval is 1 minute, which is way too - %% long - rabbit can gobble up all memory in a matter of - %% seconds. Unfortunately the memory_check_interval configuration - %% parameter and memsup:set_check_interval/1 function only provide - %% a granularity of minutes. So we have to peel off one layer of - %% the API to get to the underlying layer which operates at the - %% granularity of milliseconds. - %% - %% Note that the new setting will only take effect after the first - %% check has completed, i.e. after one minute. So if rabbit eats - %% all the memory within the first minute after startup then we - %% are out of luck. - ok = os_mon:call(memsup, {set_check_interval, ?MEMSUP_CHECK_INTERVAL}, - infinity), - + case os:type() of + {unix, linux} -> + %% memsup doesn't take account of buffers or cache when considering + %% "free" memory - therefore on Linux we can get memory alarms + %% very easily without any pressure existing on memory at all. + %% Therefore we need to use our own simple memory monitor + + supervisor:terminate_child(os_mon_sup, memsup), + supervisor:delete_child(os_mon_sup, memsup), + rabbit:start_child(rabbit_linux_memory), + + ok; + _ -> + %% The default memsup check interval is 1 minute, which is way too + %% long - rabbit can gobble up all memory in a matter of + %% seconds. Unfortunately the memory_check_interval configuration + %% parameter and memsup:set_check_interval/1 function only provide + %% a granularity of minutes. So we have to peel off one layer of + %% the API to get to the underlying layer which operates at the + %% granularity of milliseconds. + %% + %% Note that the new setting will only take effect after the first + %% check has completed, i.e. after one minute. So if rabbit eats + %% all the memory within the first minute after startup then we + %% are out of luck. + + ok = os_mon:call(memsup, {set_check_interval, ?MEMSUP_CHECK_INTERVAL}, + infinity) + end, ok = alarm_handler:add_alarm_handler(?MODULE). stop() -> diff --git a/src/rabbit_linux_memory.erl b/src/rabbit_linux_memory.erl new file mode 100644 index 00000000..69708519 --- /dev/null +++ b/src/rabbit_linux_memory.erl @@ -0,0 +1,108 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd., +%% Cohesive Financial Technologies LLC., and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd., Cohesive Financial Technologies +%% LLC., and Rabbit Technologies Ltd. are Copyright (C) 2007-2008 +%% LShift Ltd., Cohesive Financial Technologies LLC., and Rabbit +%% Technologies Ltd.; +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_linux_memory). + +-behaviour(gen_server). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-define(SERVER, ?MODULE). + +-define(MEMORY_CHECK_INTERVAL, 1000). +-define(MEMORY_CHECK_FRACTION, 0.95). + +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + + +init(_Args) -> + {ok, no_alarm, ?MEMORY_CHECK_INTERVAL}. + + +handle_call(_Request, _From, State) -> + {noreply, State, ?MEMORY_CHECK_INTERVAL}. + + +handle_cast(_Request, State) -> + {noreply, State, ?MEMORY_CHECK_INTERVAL}. + + +handle_info(_Info, State) -> + File = read_proc_file("/proc/meminfo"), + Lines = string:tokens(File, "\n"), + Dict = dict:from_list(split_and_parse_lines(Lines, [])), + MemTotal = dict:fetch("MemTotal", Dict), + MemUsed = MemTotal + - dict:fetch("MemFree", Dict) + - dict:fetch("Buffers", Dict) + - dict:fetch("Cached", Dict), + if + MemUsed / MemTotal > ?MEMORY_CHECK_FRACTION -> + NewState = alarm; + true -> + NewState = no_alarm + end, + case {State, NewState} of + {no_alarm, alarm} -> + alarm_handler:set_alarm({system_memory_high_watermark, []}), + ok; + {alarm, no_alarm} -> + alarm_handler:clear_alarm(system_memory_high_watermark), + ok; + _ -> + ok + end, + {noreply, NewState, ?MEMORY_CHECK_INTERVAL}. + +%% file:read_file does not work on files in /proc as it seems to get the size +%% of the file first and then read that many bytes. But files in /proc always +%% have length 0, we just have to read until we get eof. +read_proc_file(File) -> + {ok, IoDevice} = file:open(File, [read, raw]), + {ok, Res} = file:read(IoDevice, 1000000), + Res. + +%% A line looks like "FooBar: 123456 kB" +split_and_parse_lines([], Acc) -> Acc; +split_and_parse_lines([Line | Rest], Acc) -> + Name = line_element(Line, 1), + ValueString = line_element(Line, 2), + Value = list_to_integer(string:sub_word(ValueString, 1)), + split_and_parse_lines(Rest, [{Name, Value} | Acc]). + +line_element(Line, Count) -> + string:strip(string:sub_word(Line, Count, $:)). + + +terminate(_Reason, _State) -> + ok. + + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. -- cgit v1.2.1 From 6c62255f86be579dff7b7a4767656b2234507ff2 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 25 Nov 2008 13:20:47 +0000 Subject: Empty changeset to create a new head for bug18557 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 04a0aff6..6baee930 100644 --- a/Makefile +++ b/Makefile @@ -10,7 +10,7 @@ WEB_URL=http://stage.rabbitmq.com/ ifndef USE_SPECS # our type specs rely on features / bug fixes in dialyzer that are # only available in R12B-3 upwards -# +# # NB: the test assumes that version number will only contain single digits USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.6.2" ]; then echo "true"; else echo "false"; fi) endif -- cgit v1.2.1 -- cgit v1.2.1 From 843e9d504956e82a1442c763d89e086bf6bb97bc Mon Sep 17 00:00:00 2001 From: Jamal Natour Date: Tue, 6 Jan 2009 10:12:19 +0000 Subject: Initial import. Ebuild modified from an overlay ebuild written by Holger Hoffst?tte in response to gentoo bug #192278 and lshift bug #19213 added files/1.5.0/init.d: rabbitmq-cluster.example.confd - added sample clustering configuration rabbitmq-server.confd - added default configuration for rabbitmq-server rabbitmq-server.initd - added gentoo runscript for rabbitmq-server added files/1.5.0/logrotate.d: rabbitmq-server - added logrotate script added files/1.5.0/man: rabbitmq-multi.1 - added man page for rabbitmq-multi script rabbitmq-server.1 - added man page for rabbitmq-server script rabbitmq.5 - added man page for rabbitmq script rabbitmqctl.1 - added man page for rabbitmqctl script added files/1.5.0/misc: rabbitmq-invoke - wrapper script for rabbitmq-multi Added to allow cloning of output to logs and maintaining the correct log permissions (i.e. with permissions of the rabbit user, not root) added files/1.5.0/patches: 0001-change-conf-dir.patch - patch to make scripts read from conf.d --- packaging/gentoo/ChangeLog | 33 ++ packaging/gentoo/Manifest | 16 + .../1.5.0/init.d/rabbitmq-cluster.example.confd | 5 + .../files/1.5.0/init.d/rabbitmq-server.confd | 38 ++ .../files/1.5.0/init.d/rabbitmq-server.initd | 132 +++++++ .../gentoo/files/1.5.0/logrotate.d/rabbitmq-server | 12 + packaging/gentoo/files/1.5.0/man/rabbitmq-multi.1 | 176 +++++++++ packaging/gentoo/files/1.5.0/man/rabbitmq-server.1 | 199 ++++++++++ packaging/gentoo/files/1.5.0/man/rabbitmq.5 | 186 +++++++++ packaging/gentoo/files/1.5.0/man/rabbitmqctl.1 | 421 +++++++++++++++++++++ packaging/gentoo/files/1.5.0/misc/rabbitmq-invoke | 70 ++++ .../files/1.5.0/patches/0001-change-conf-dir.patch | 24 ++ packaging/gentoo/metadata.xml | 20 + packaging/gentoo/rabbitmq-server-1.5.0-r1.ebuild | 175 +++++++++ packaging/gentoo/rabbitmq-server-1.5.0.ebuild | 39 ++ 15 files changed, 1546 insertions(+) create mode 100644 packaging/gentoo/ChangeLog create mode 100644 packaging/gentoo/Manifest create mode 100644 packaging/gentoo/files/1.5.0/init.d/rabbitmq-cluster.example.confd create mode 100644 packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.confd create mode 100644 packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.initd create mode 100644 packaging/gentoo/files/1.5.0/logrotate.d/rabbitmq-server create mode 100644 packaging/gentoo/files/1.5.0/man/rabbitmq-multi.1 create mode 100644 packaging/gentoo/files/1.5.0/man/rabbitmq-server.1 create mode 100644 packaging/gentoo/files/1.5.0/man/rabbitmq.5 create mode 100644 packaging/gentoo/files/1.5.0/man/rabbitmqctl.1 create mode 100644 packaging/gentoo/files/1.5.0/misc/rabbitmq-invoke create mode 100644 packaging/gentoo/files/1.5.0/patches/0001-change-conf-dir.patch create mode 100644 packaging/gentoo/metadata.xml create mode 100644 packaging/gentoo/rabbitmq-server-1.5.0-r1.ebuild create mode 100644 packaging/gentoo/rabbitmq-server-1.5.0.ebuild diff --git a/packaging/gentoo/ChangeLog b/packaging/gentoo/ChangeLog new file mode 100644 index 00000000..363a3285 --- /dev/null +++ b/packaging/gentoo/ChangeLog @@ -0,0 +1,33 @@ + +24 Dec 2008; Jamal Natour +added files/1.5.0/init.d: + rabbitmq-cluster.example.confd - added sample clustering configuration + rabbitmq-server.confd - added default configuration for rabbitmq-server + rabbitmq-server.initd - added gentoo runscript for rabbitmq-server + +24 Dec 2008; Jamal Natour +added files/1.5.0/logrotate.d: + rabbitmq-server - added logrotate script + +24 Dec 2008; Jamal Natour +added files/1.5.0/man: + rabbitmq-multi.1 - added man page for rabbitmq-multi script + rabbitmq-server.1 - added man page for rabbitmq-server script + rabbitmq.5 - added man page for rabbitmq script + rabbitmqctl.1 - added man page for rabbitmqctl script + +24 Dec 2008; Jamal Natour +added files/1.5.0/misc: + rabbitmq-invoke - wrapper script for rabbitmq-multi + Added to allow cloning of output to logs and maintaining the + correct log permissions (i.e. with permissions of the rabbit user, not root) + +24 Dec 2008; Jamal Natour +added files/1.5.0/patches: + 0001-change-conf-dir.patch - patch to make scripts read from conf.d + +24 Dec 2008; Jamal Natour +Initial import. Ebuild modified from an overlay ebuild written by Holger Hoffstätte + In response to #192278 + +*rabbitmq-server-1.5.0-r1 (24 Dec 2008) diff --git a/packaging/gentoo/Manifest b/packaging/gentoo/Manifest new file mode 100644 index 00000000..9b48649a --- /dev/null +++ b/packaging/gentoo/Manifest @@ -0,0 +1,16 @@ +AUX 1.5.0/init.d/rabbitmq-cluster.example.confd 241 RMD160 0867205a81966fd182bd97555e9b1edafd51370a SHA1 6c282cc416dfd2958d58235f9fa53b8c7652d3fd SHA256 3a6c8dcbdbea954eb978627821a73da7183a660954b45b57eb32b5f5ae60964a +AUX 1.5.0/init.d/rabbitmq-server.confd 1216 RMD160 e94a441eba30ef64eed8bb79f5ac13ef89eeefa2 SHA1 0ebf38b1c3a3581f3bee8779fdb7c76fe9045b15 SHA256 b605f23c38b5c5e20c58b9e0f7f2b5ab7cb50b30f0e3ed92f146fad9c2f20570 +AUX 1.5.0/init.d/rabbitmq-server.initd 2645 RMD160 84ec40238b37fc349b2c75ac119ad39b4a402500 SHA1 aff1391fc986785180e0e9a49f2ad4330ce587e0 SHA256 6e7828d14f86a2f0ee3994249cd4d21e304058385fb450aff66bf764dad0ecee +AUX 1.5.0/logrotate.d/rabbitmq-server 243 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1.5.0/misc/rabbitmq-invoke 2501 RMD160 f51369d32bcf72116e580e8311558ce8fdff4ab9 SHA1 a450c014a8af4b9bb85d77e51ae67b47b152ecfa SHA256 528c3b4fbf744186b3a0507cbcd5a40016a918436c56a22e5bb9f257331eee3b +AUX 1.5.0/patches/0001-change-conf-dir.patch 1040 RMD160 715680427661520a0cdaec4adf4a512ac7554b48 SHA1 21a7d55b2fdd8388cecde4f36f85e26fcd465b53 SHA256 fecc2e54887e5dc40bdc9c10c4b287098f2f99d1918b0dfbdc60199f55c4a502 +DIST rabbitmq-server-1.5.0.tar.gz 111389 RMD160 f9dded4c9fe338c07b7e9606ac2c51cdbc0bc67b SHA1 a27f2bcaf2cd2557fd5ed1defdfed9a519199bc4 SHA256 0531d8a62dbeb018a69672fc638ff324b8a92e4c9674520c046b4dae117fa72a +DIST rabbitmq-server-generic-unix-1.5.0.tar.gz 354152 RMD160 864345792c8ff4d7dbcd1c31f9694df62a68f2e5 SHA1 477081f64270ea066c5c6f115105741212afdef6 SHA256 5c1a9ab3f317e99ff951336c19a8f3528016c73d70ff83e6c084f50aad6e2838 +EBUILD rabbitmq-server-1.5.0-r1.ebuild 5030 RMD160 8ddfee7d92995f0c6943affb3b479c6b401b87aa SHA1 d1d32b7b8d327b2f3cf1b1bf00a135fcde7c05bd SHA256 bf19f37e825c4f9356a6dcda0687350a06d29fddd3c9bf4d0b3188269f0e421b +EBUILD rabbitmq-server-1.5.0.ebuild 1051 RMD160 35f9549863af11a127f096783a57dbc0ff3421eb SHA1 166b02e0a531303ce68d7c7b761374c27b831d8f SHA256 794bca4f2c1926e3913e69326e914a783d914816cd21f531b9c870b7ccfdd89f +MISC ChangeLog 1325 RMD160 e137ba50c491c8d81f6a7d690e259e63f12fa4bf SHA1 9e86ce4016507cb6ade014768e25bcc66cd5f429 SHA256 bd7cd66e913497ef5a52020009ba64142e7b0999df424de6269ea1c32c4061d5 +MISC metadata.xml 559 RMD160 5efae60ed39f36816a4717004d771658ea0c0405 SHA1 cf40daad082d73f2a6a91932431818565b26c4f9 SHA256 89a2dc095e90eaaa579b7b7169968cfe79f7d1636276e2b2a43f02c644a0f97c diff --git a/packaging/gentoo/files/1.5.0/init.d/rabbitmq-cluster.example.confd b/packaging/gentoo/files/1.5.0/init.d/rabbitmq-cluster.example.confd new file mode 100644 index 00000000..5888af91 --- /dev/null +++ b/packaging/gentoo/files/1.5.0/init.d/rabbitmq-cluster.example.confd @@ -0,0 +1,5 @@ +# Copy this to /etc/conf.d after making the appropriate changes and removing the comments +# more information on rabbit clusters can be found at http://www.rabbitmq.com/clustering.html + +# replace HOSTNAME with your hostname +[rabbit@HOSTNAME] diff --git a/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.confd b/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.confd new file mode 100644 index 00000000..d2271168 --- /dev/null +++ b/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.confd @@ -0,0 +1,38 @@ +# Set this to the directory where Mnesia database files should be placed. +MNESIA_BASE=/var/lib/rabbitmq/mnesia + +# Log files generated by the server will be placed in this directory. +LOG_BASE=/var/log/rabbitmq + +# This can be useful if you want to run more than one node per machine +# NOTE NODENAME should be unique per erlang-node-and-machine combination. +#Refer to "clustering on a single machine" in the documentation for more. +NODENAME=rabbit + +# This can be changed if you only want to bind to one network interface. +NODE_IP_ADDRESS=0.0.0.0. + +# start port for the rabbit node, +# when starting multiple rabbit nodes, the port numbers will increment +# by one for each additional rabbitmq node +NODE_PORT=5672 + +# number of inital rabbit nodes started +NODE_COUNT=1 + +# this is the file that holds the pids of the rabbit nodes +PIDS_FILE=/var/lib/rabbitmq/pids + +# If this file is present it is used by the server to +# auto-configure a RabbitMQ cluster. See the clustering +# guide for details. +CLUSTER_CONFIG_FILE=/etc/conf.d/rabbitmq-cluster + +# the name used in the init script system messages +DESC=rabbitmq-server + +# name of the user whom rabbit runs as +USER=rabbitmq + +# suffix of rabbit logs +ROTATED_LOG_SUFFIX=-old diff --git a/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.initd b/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.initd new file mode 100644 index 00000000..b7ee8fcd --- /dev/null +++ b/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.initd @@ -0,0 +1,132 @@ +#!/sbin/runscript +# Copyright 1999-2007 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +# Description: RabbitMQ broker +# Short-Description: Enable AMQP service provided by RabbitMQ broker +opts="${opts} status rotate" +depend() +{ + need net logger localmount + after bootmisc + use dns +} + +CONFIG_FILE="/etc/conf.d/rabbitmq-server" + +# wrapper to allows us to have gentoo style logging +WRAPPER=/usr/sbin/rabbitmq-invoke +DAEMON=/usr/sbin/rabbitmq-multi + +# pinched from debian initscript and modified for gentoo +start_rabbitmq() +{ + info_log="${LOG_BASE}/startup_log" + error_log="${LOG_BASE}/startup_err" + set +e + RETVAL=1 + su -s /bin/sh -c "$WRAPPER $info_log $error_log start_all ${NODE_COUNT} &" ${USER} + case "$?" in + 0) + einfo "SUCCESS" + RETVAL=0 + ;; + 1) ERR="TIMEOUT" + eerror "${ERR} - check ${info_log}" + eerror "${ERR} - check ${error_log}" + ;; + *) ERR="FAILED" + eerror "${ERR} - check ${info_log}" + eerror "${ERR} - check ${error_log}" + ;; + esac + set -e +} + +stop_rabbitmq() +{ + info_log="${LOG_BASE}/shutdown_log" + error_log="${LOG_BASE}/shutdown_err" + set +e + status_rabbitmq quiet + if [ "$RETVAL" == "0" ] ; then + su -s /bin/sh -c "$WRAPPER $info_log $error_log stop_all" ${USER} + RETVAL=$? + if [ ${RETVAL} != 0 ] ; then + ERR="FAILED" + eerror "${ERR} - check ${info_log}" + eerror "${ERR} - check ${error_log}" + fi + else + eerror "No nodes running" + RETVAL=0 + fi + set -e +} + +status_rabbitmq() +{ + RETVAL=0 + set +e + if [ "$1" != "quiet" ] ; then + su -s /bin/sh -c "${DAEMON} status" ${USER} 2>&1 + else + su -s /bin/sh -c "${DAEMON} status" ${USER} > /dev/null 2>&1 + fi + if [ $? != 0 ] ; then + RETVAL=1 + fi + set -e +} + +rotate_logs_rabbitmq() +{ + set +e + su -s /bin/sh -c "${DAEMON} rotate_logs ${ROTATED_LOG_SUFFIX}" ${USER} 2>&1 + set -e +} + +# gentoo funcs +start() +{ + checkconfig || return 1 + ebegin "Starting ${DESC}: " + start_rabbitmq + eend $? +} + +stop() +{ + ebegin "Stopping ${DESC}: " + stop_rabbitmq + eend $? +} + +restart() +{ + svc_stop + svc_start +} + +status() +{ + ebegin "Querying status of ${DESC}: " + status_rabbitmq + eend $? +} + +rotate() +{ + ebegin "Rotating log files for ${DESC}: " + rotate_logs_rabbitmq + eend $? +} + +checkconfig() +{ + if [ ! -r ${CONFIG_FILE} ] || [ ! -x ${DAEMON} ] || [ ! -x ${WRAPPER} ] ; + then + eerror "You need a ${CONFIG_FILE} file to run rabbitmq" + return 1 + fi +} diff --git a/packaging/gentoo/files/1.5.0/logrotate.d/rabbitmq-server b/packaging/gentoo/files/1.5.0/logrotate.d/rabbitmq-server new file mode 100644 index 00000000..d3cb4ca0 --- /dev/null +++ b/packaging/gentoo/files/1.5.0/logrotate.d/rabbitmq-server @@ -0,0 +1,12 @@ +/var/log/rabbitmq/*.log { + weekly + missingok + rotate 20 + compress + delaycompress + notifempty + sharedscripts + postrotate + /etc/init.d/rabbitmq-server rotate + endscript +} diff --git a/packaging/gentoo/files/1.5.0/man/rabbitmq-multi.1 b/packaging/gentoo/files/1.5.0/man/rabbitmq-multi.1 new file mode 100644 index 00000000..f4132f9e --- /dev/null +++ b/packaging/gentoo/files/1.5.0/man/rabbitmq-multi.1 @@ -0,0 +1,176 @@ +.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.05) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. Capital omega is used to do unbreakable dashes and +.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, +.\" nothing in troff, for use with C<>. +.tr \(*W- +.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' +.ie n \{\ +. ds -- \(*W- +. ds PI pi +. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch +. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch +. ds L" "" +. ds R" "" +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' +'br\} +.\" +.\" Escape single quotes in literal strings from groff's Unicode transform. +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" +.\" If the F register is turned on, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.ie \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. nr % 0 +. rr F +.\} +.el \{\ +. de IX +.. +.\} +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. No user-serviceable parts. +. \" fudge factors for nroff and troff +.if n \{\ +. ds #H 0 +. ds #V .8m +. ds #F .3m +. ds #[ \f1 +. ds #] \fP +.\} +.if t \{\ +. ds #H ((1u-(\\\\n(.fu%2u))*.13m) +. ds #V .6m +. ds #F 0 +. ds #[ \& +. ds #] \& +.\} +. \" simple accents for nroff and troff +.if n \{\ +. ds ' \& +. ds ` \& +. ds ^ \& +. ds , \& +. ds ~ ~ +. ds / +.\} +.if t \{\ +. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" +. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' +. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' +. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' +. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' +. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' +.\} +. \" troff and (daisy-wheel) nroff accents +.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' +.ds 8 \h'\*(#H'\(*b\h'-\*(#H' +.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] +.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' +.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' +.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] +.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] +.ds ae a\h'-(\w'a'u*4/10)'e +.ds Ae A\h'-(\w'A'u*4/10)'E +. \" corrections for vroff +.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' +.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' +. \" for low resolution devices (crt and lpr) +.if \n(.H>23 .if \n(.V>19 \ +\{\ +. ds : e +. ds 8 ss +. ds o a +. ds d- d\h'-1'\(ga +. ds D- D\h'-1'\(hy +. ds th \o'bp' +. ds Th \o'LP' +. ds ae ae +. ds Ae AE +.\} +.rm #[ #] #H #V #F C +.\" ======================================================================== +.\" +.IX Title "rabbitmq-multi 1" +.TH rabbitmq-multi 1 "2008-12-17" "" "RabbitMQ AMQP Server" +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +rabbitmq\-multi \- start/stop local cluster RabbitMQ nodes +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +rabbitmq-multi \fIcommand\fR [command option] +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +RabbitMQ is an implementation of \s-1AMQP\s0, the emerging standard for high +performance enterprise messaging. The RabbitMQ server is a robust and +scalable implementation of an \s-1AMQP\s0 broker. +.PP +rabbitmq-multi scripts allows for easy set-up of a cluster on a single +machine. +.PP +See also \fIrabbitmq\-server\fR\|(1) for configuration information. +.SH "COMMANDS" +.IX Header "COMMANDS" +start_all \fIcount\fR + start count nodes with unique names, listening on all \s-1IP\s0 addresses + and on sequential ports starting from 5672. +.PP +status + print the status of all running RabbitMQ nodes +.PP +stop_all + stop all local RabbitMQ nodes +.PP +rotate_logs + rotate log files for all local and running RabbitMQ nodes +.SH "EXAMPLES" +.IX Header "EXAMPLES" +Start 3 local RabbitMQ nodes with unique, sequential port numbers: +.PP +.Vb 1 +\& rabbitmq\-multi start_all 3 +.Ve +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIrabbitmq\-server\fR\|(1), \fIrabbitmqctl\fR\|(1) +.SH "AUTHOR" +.IX Header "AUTHOR" +The RabbitMQ Team +.SH "REFERENCES" +.IX Header "REFERENCES" +RabbitMQ Web Site: http://www.rabbitmq.com diff --git a/packaging/gentoo/files/1.5.0/man/rabbitmq-server.1 b/packaging/gentoo/files/1.5.0/man/rabbitmq-server.1 new file mode 100644 index 00000000..fb94907d --- /dev/null +++ b/packaging/gentoo/files/1.5.0/man/rabbitmq-server.1 @@ -0,0 +1,199 @@ +.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.05) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. Capital omega is used to do unbreakable dashes and +.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, +.\" nothing in troff, for use with C<>. +.tr \(*W- +.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' +.ie n \{\ +. ds -- \(*W- +. ds PI pi +. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch +. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch +. ds L" "" +. ds R" "" +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' +'br\} +.\" +.\" Escape single quotes in literal strings from groff's Unicode transform. +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" +.\" If the F register is turned on, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.ie \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. nr % 0 +. rr F +.\} +.el \{\ +. de IX +.. +.\} +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. No user-serviceable parts. +. \" fudge factors for nroff and troff +.if n \{\ +. ds #H 0 +. ds #V .8m +. ds #F .3m +. ds #[ \f1 +. ds #] \fP +.\} +.if t \{\ +. ds #H ((1u-(\\\\n(.fu%2u))*.13m) +. ds #V .6m +. ds #F 0 +. ds #[ \& +. ds #] \& +.\} +. \" simple accents for nroff and troff +.if n \{\ +. ds ' \& +. ds ` \& +. ds ^ \& +. ds , \& +. ds ~ ~ +. ds / +.\} +.if t \{\ +. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" +. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' +. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' +. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' +. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' +. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' +.\} +. \" troff and (daisy-wheel) nroff accents +.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' +.ds 8 \h'\*(#H'\(*b\h'-\*(#H' +.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] +.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' +.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' +.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] +.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] +.ds ae a\h'-(\w'a'u*4/10)'e +.ds Ae A\h'-(\w'A'u*4/10)'E +. \" corrections for vroff +.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' +.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' +. \" for low resolution devices (crt and lpr) +.if \n(.H>23 .if \n(.V>19 \ +\{\ +. ds : e +. ds 8 ss +. ds o a +. ds d- d\h'-1'\(ga +. ds D- D\h'-1'\(hy +. ds th \o'bp' +. ds Th \o'LP' +. ds ae ae +. ds Ae AE +.\} +.rm #[ #] #H #V #F C +.\" ======================================================================== +.\" +.IX Title "rabbitmq-server 1" +.TH rabbitmq-server 1 "2008-12-17" "" "RabbitMQ AMQP Server" +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +rabbitmq\-server \- start RabbitMQ AMQP server +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +rabbitmq-server [\-detached] +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +RabbitMQ is an implementation of \s-1AMQP\s0, the emerging standard for high +performance enterprise messaging. The RabbitMQ server is a robust and +scalable implementation of an \s-1AMQP\s0 broker. +.PP +Running rabbitmq-server in the foreground displays a banner message, +and reports on progress in the startup sequence, concluding with the +message \*(L"broker running\*(R", indicating that the RabbitMQ broker has been +started successfully. To shut down the server, just terminate the +process or use \fIrabbitmqctl\fR\|(1). +.SH "ENVIRONMENT" +.IX Header "ENVIRONMENT" +\&\fB\s-1Following variables are read from /etc/conf.d/rabbitmq-server\s0\fR +.PP +\&\fB\s-1RABBITMQ_MNESIA_BASE\s0\fR + Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory + where Mnesia database files should be placed. +.PP +\&\fB\s-1RABBITMQ_LOG_BASE\s0\fR + Defaults to /var/log/rabbitmq. Log files generated by the server + will be placed in this directory. +.PP +\&\fB\s-1RABBITMQ_NODENAME\s0\fR + Defaults to rabbit. This can be useful if you want to run more + than one node per machine \- \fB\s-1RABBITMQ_NODENAME\s0\fR should be unique + per erlang-node-and-machine combination. See clustering on a + single machine guide at + http://www.rabbitmq.com/clustering.html#single\-machine for + details. +.PP +\&\fB\s-1RABBITMQ_NODE_IP_ADDRESS\s0\fR + Defaults to 0.0.0.0. This can be changed if you only want to bind + to one network interface. +.PP +\&\fB\s-1RABBITMQ_NODE_PORT\s0\fR + Defaults to 5672. +.PP +\&\fB\s-1RABBITMQ_CLUSTER_CONFIG_FILE\s0\fR + Defaults to /etc/default/rabbitmq_cluster.config. If this file is + present it is used by the server to auto-configure a RabbitMQ + cluster. + See the clustering guide at http://www.rabbitmq.com/clustering.html + for details. +.SH "OPTIONS" +.IX Header "OPTIONS" +\&\fB\-detached\fR start the server process in the background +.SH "EXAMPLES" +.IX Header "EXAMPLES" +Run RabbitMQ \s-1AMQP\s0 server in the background: +.PP +.Vb 1 +\& rabbitmq\-server \-detached +.Ve +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIrabbitmq\-multi\fR\|(1), \fIrabbitmqctl\fR\|(1) +.SH "AUTHOR" +.IX Header "AUTHOR" +The RabbitMQ Team +.SH "REFERENCES" +.IX Header "REFERENCES" +RabbitMQ Web Site: http://www.rabbitmq.com diff --git a/packaging/gentoo/files/1.5.0/man/rabbitmq.5 b/packaging/gentoo/files/1.5.0/man/rabbitmq.5 new file mode 100644 index 00000000..37abbb08 --- /dev/null +++ b/packaging/gentoo/files/1.5.0/man/rabbitmq.5 @@ -0,0 +1,186 @@ +.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.05) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. Capital omega is used to do unbreakable dashes and +.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, +.\" nothing in troff, for use with C<>. +.tr \(*W- +.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' +.ie n \{\ +. ds -- \(*W- +. ds PI pi +. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch +. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch +. ds L" "" +. ds R" "" +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' +'br\} +.\" +.\" Escape single quotes in literal strings from groff's Unicode transform. +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" +.\" If the F register is turned on, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.ie \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. nr % 0 +. rr F +.\} +.el \{\ +. de IX +.. +.\} +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. No user-serviceable parts. +. \" fudge factors for nroff and troff +.if n \{\ +. ds #H 0 +. ds #V .8m +. ds #F .3m +. ds #[ \f1 +. ds #] \fP +.\} +.if t \{\ +. ds #H ((1u-(\\\\n(.fu%2u))*.13m) +. ds #V .6m +. ds #F 0 +. ds #[ \& +. ds #] \& +.\} +. \" simple accents for nroff and troff +.if n \{\ +. ds ' \& +. ds ` \& +. ds ^ \& +. ds , \& +. ds ~ ~ +. ds / +.\} +.if t \{\ +. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" +. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' +. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' +. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' +. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' +. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' +.\} +. \" troff and (daisy-wheel) nroff accents +.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' +.ds 8 \h'\*(#H'\(*b\h'-\*(#H' +.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] +.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' +.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' +.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] +.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] +.ds ae a\h'-(\w'a'u*4/10)'e +.ds Ae A\h'-(\w'A'u*4/10)'E +. \" corrections for vroff +.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' +.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' +. \" for low resolution devices (crt and lpr) +.if \n(.H>23 .if \n(.V>19 \ +\{\ +. ds : e +. ds 8 ss +. ds o a +. ds d- d\h'-1'\(ga +. ds D- D\h'-1'\(hy +. ds th \o'bp' +. ds Th \o'LP' +. ds ae ae +. ds Ae AE +.\} +.rm #[ #] #H #V #F C +.\" ======================================================================== +.\" +.IX Title "rabbitmq 5" +.TH rabbitmq 5 "2008-12-17" "" "RabbitMQ AMQP Server" +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +/etc/conf.d/rabbitmq \- default settings for RabbitMQ AMQP server +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +/etc/conf.d/rabbitmq contains variable settings that override the +defaults built in to the RabbitMQ startup scripts. +.PP +The file is interpreted by the system shell, and so should consist of +a sequence of shell environment variable definitions. Normal shell +syntax is permitted (since the file is sourced using the shell \*(L".\*(R" +operator), including line comments starting with \*(L"#\*(R". +.PP +In order of preference, the startup scripts get their values from the +environment, from /etc/conf.d/rabbitmq, and finally from the built-in +default values. For example, for the \fB\s-1RABBITMQ_NODENAME\s0\fR setting, +.PP +\&\fB\s-1RABBITMQ_NODENAME\s0\fR + from the environment is checked first. If it is absent or equal + to the empty string, then +.PP +\&\fB\s-1NODENAME\s0\fR + from /etc/conf.d/rabbitmq is checked next. If it is also absent + or set equal to the empty string, then the default value from the + startup script is used. +.PP +The variable names in /etc/conf.d/rabbitmq are always equal to the +environment variable names, with the \fB\s-1RABBITMQ_\s0\fR prefix removed: +\&\fB\s-1RABBITMQ_NODE_PORT\s0\fR from the environment becomes \fB\s-1NODE_PORT\s0\fR in the +/etc/conf.d/rabbitmq file, etc. +.SH "EXAMPLES" +.IX Header "EXAMPLES" +The following is an example of a complete /etc/conf.d/rabbitmq file +that overrides the default Erlang node name from \*(L"rabbit\*(R" to \*(L"hare\*(R": +.PP +.Vb 4 +\& # I am a complete /etc/conf.d/rabbitmq file. +\& # Comment lines start with a hash character. +\& # This is a /bin/sh script file \- use ordinary envt var syntax +\& NODENAME=hare +.Ve +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIrabbitmq\-server\fR\|(1), \fIrabbitmq\-multi\fR\|(1), \fIrabbitmqctl\fR\|(1) +.SH "AUTHOR" +.IX Header "AUTHOR" +Originally written by The RabbitMQ Team +.SH "COPYRIGHT" +.IX Header "COPYRIGHT" +This package, the RabbitMQ server is licensed under the \s-1MPL\s0. +.PP +If you have any questions regarding licensing, please contact us at +info@rabbitmq.com. +.SH "REFERENCES" +.IX Header "REFERENCES" +RabbitMQ Web Site: http://www.rabbitmq.com diff --git a/packaging/gentoo/files/1.5.0/man/rabbitmqctl.1 b/packaging/gentoo/files/1.5.0/man/rabbitmqctl.1 new file mode 100644 index 00000000..7032c799 --- /dev/null +++ b/packaging/gentoo/files/1.5.0/man/rabbitmqctl.1 @@ -0,0 +1,421 @@ +.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.05) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. Capital omega is used to do unbreakable dashes and +.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, +.\" nothing in troff, for use with C<>. +.tr \(*W- +.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' +.ie n \{\ +. ds -- \(*W- +. ds PI pi +. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch +. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch +. ds L" "" +. ds R" "" +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' +'br\} +.\" +.\" Escape single quotes in literal strings from groff's Unicode transform. +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" +.\" If the F register is turned on, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.ie \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. nr % 0 +. rr F +.\} +.el \{\ +. de IX +.. +.\} +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. No user-serviceable parts. +. \" fudge factors for nroff and troff +.if n \{\ +. ds #H 0 +. ds #V .8m +. ds #F .3m +. ds #[ \f1 +. ds #] \fP +.\} +.if t \{\ +. ds #H ((1u-(\\\\n(.fu%2u))*.13m) +. ds #V .6m +. ds #F 0 +. ds #[ \& +. ds #] \& +.\} +. \" simple accents for nroff and troff +.if n \{\ +. ds ' \& +. ds ` \& +. ds ^ \& +. ds , \& +. ds ~ ~ +. ds / +.\} +.if t \{\ +. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" +. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' +. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' +. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' +. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' +. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' +.\} +. \" troff and (daisy-wheel) nroff accents +.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' +.ds 8 \h'\*(#H'\(*b\h'-\*(#H' +.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] +.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' +.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' +.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] +.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] +.ds ae a\h'-(\w'a'u*4/10)'e +.ds Ae A\h'-(\w'A'u*4/10)'E +. \" corrections for vroff +.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' +.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' +. \" for low resolution devices (crt and lpr) +.if \n(.H>23 .if \n(.V>19 \ +\{\ +. ds : e +. ds 8 ss +. ds o a +. ds d- d\h'-1'\(ga +. ds D- D\h'-1'\(hy +. ds th \o'bp' +. ds Th \o'LP' +. ds ae ae +. ds Ae AE +.\} +.rm #[ #] #H #V #F C +.\" ======================================================================== +.\" +.IX Title "rabbitmqctl 1" +.TH rabbitmqctl 1 "2008-12-17" "" "RabbitMQ AMQP Server" +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +rabbitmqctl \- command line tool for managing a RabbitMQ broker +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +rabbitmqctl [\-n \fInode\fR] \fI [command options] +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +RabbitMQ is an implementation of \s-1AMQP\s0, the emerging standard for high +performance enterprise messaging. The RabbitMQ server is a robust and +scalable implementation of an \s-1AMQP\s0 broker. +.PP +rabbitmqctl is a command line tool for managing a RabbitMQ broker. +It performs all actions by connecting to one of the broker's nodes. +.SH "OPTIONS" +.IX Header "OPTIONS" +\&\fB\-n\fR \fInode\fR + default node is \f(CW\*(C`rabbit@server\*(C'\fR, where server is the local host. + On a host named \f(CW\*(C`server.example.com\*(C'\fR, the node name of the + RabbitMQ Erlang node will usually be rabbit@server (unless + \s-1RABBITMQ_NODENAME\s0 has been set to some non-default value at broker + startup time). The output of hostname \-s is usually the correct + suffix to use after the \*(L"@\*(R" sign. See \fIrabbitmq\-server\fR\|(1) for + details of configuring the RabbitMQ broker. +.PP +\&\fB\-q\fR + quiet output mode is selected with the \fB\-q\fR flag. Informational + messages are suppressed when quiet mode is in effect. +.SH "COMMANDS" +.IX Header "COMMANDS" +.SS "\s-1APPLICATION\s0 \s-1AND\s0 \s-1CLUSTER\s0 \s-1MANAGEMENT\s0" +.IX Subsection "APPLICATION AND CLUSTER MANAGEMENT" +stop + stop the Erlang node on which RabbitMQ broker is running. +.PP +stop_app + stop the RabbitMQ application, leaving the Erlang node running. + This command is typically run prior to performing other management + actions that require the RabbitMQ application to be stopped, + e.g. \fIreset\fR. +.PP +start_app + start the RabbitMQ application. + This command is typically run prior to performing other management + actions that require the RabbitMQ application to be stopped, + e.g. \fIreset\fR. +.PP +status + display various information about the RabbitMQ broker, such as + whether the RabbitMQ application on the current node, its version + number, what nodes are part of the broker, which of these are + running. +.PP +force + return a RabbitMQ node to its virgin state. + Removes the node from any cluster it belongs to, removes all data + from the management database, such as configured users, vhosts and + deletes all persistent messages. +.PP +force_reset + the same as \fIforce\fR command, but resets the node unconditionally, + regardless of the current management database state and cluster + configuration. + It should only be used as a last resort if the database or cluster + configuration has been corrupted. +.PP +rotate_logs [suffix] + instruct the RabbitMQ node to rotate the log files. The RabbitMQ + broker will attempt to append the current contents of the log file + to the file with the name composed of the original name and the + suffix. It will create a new file if such a file does not already + exist. When no \fIsuffix\fR is specified, the empty log file is + simply created at the original location; no rotation takes place. + When an error occurs while appending the contents of the old log + file, the operation behaves in the same way as if no \fIsuffix\fR was + specified. + This command might be helpful when you are e.g. writing your own + logrotate script and you do not want to restart the RabbitMQ node. +.PP +cluster \fIclusternode\fR ... + instruct the node to become member of a cluster with the specified + nodes determined by \fIclusternode\fR option(s). + See http://www.rabbitmq.com/clustering.html for more information + about clustering. +.SS "\s-1USER\s0 \s-1MANAGEMENT\s0" +.IX Subsection "USER MANAGEMENT" +add_user \fIusername\fR \fIpassword\fR + create a user named \fIusername\fR with (initial) password \fIpassword\fR. +.PP +change_password \fIusername\fR \fInewpassword\fR + change the password for the user named \fIusername\fR to \fInewpassword\fR. +.PP +list_users + list all users. +.SS "\s-1ACCESS\s0 \s-1CONTROL\s0" +.IX Subsection "ACCESS CONTROL" +add_vhost \fIvhostpath\fR + create a new virtual host called \fIvhostpath\fR. +.PP +delete_vhost \fIvhostpath\fR + delete a virtual host \fIvhostpath\fR. + That command deletes also all its exchanges, queues and user mappings. +.PP +list_vhosts + list all virtual hosts. +.PP +map_user_vhost \fIusername\fR \fIvhostpath\fR + grant the user named \fIusername\fR access to the virtual host called + \fIvhostpath\fR. +.PP +unmap_user_vhost \fIusername\fR \fIvhostpath\fR + deny the user named \fIusername\fR access to the virtual host called + \fIvhostpath\fR. +.PP +list_user_vhost \fIusername\fR + list all the virtual hosts to which the user named \fIusername\fR has + been granted access. +.SS "\s-1SERVER\s0 \s-1STATUS\s0" +.IX Subsection "SERVER STATUS" +list_queues [\-p \fIvhostpath\fR] [\fIqueueinfoitem\fR ...] + list queue information by virtual host. If no \fIqueueinfoitem\fRs + are specified then then name and number of messages is displayed + for each queue. +.PP +\fIQueue information items\fR +.IX Subsection "Queue information items" +.Sp +.RS 4 +name + URL-encoded name of the queue +.Sp +durable + whether the queue survives server restarts +.Sp +auto_delete + whether the queue will be deleted when no longer used +.Sp +arguments + queue arguments +.Sp +pid + Erlang process identifier associated with the queue +.Sp +messages_ready + number of ready messages +.Sp +messages_unacknowledged + number of unacknowledged messages +.Sp +messages_uncommitted + number of uncommitted messages +.Sp +messages + sum of ready, unacknowledged and uncommitted messages +.Sp +acks_uncommitted + number of uncommitted acknowledgements +.Sp +consumers + number of consumers +.Sp +transactions + number of transactions +.Sp +memory + bytes of memory consumed by the Erlang process for the queue, + including stack, heap and internal structures +.RE +.PP +list_exchanges [\-p \fIvhostpath\fR] [\fIexchangeinfoitem\fR ...] + list exchange information by virtual host. If no + \fIexchangeinfoitem\fRs are specified then name and type is displayed + for each exchange. +.PP +\fIExchange information items\fR +.IX Subsection "Exchange information items" +.Sp +.RS 4 +name + URL-encoded name of the exchange +.Sp +type + exchange type (\fBdirect\fR, \fBtopic\fR or \fBfanout\fR) +.Sp +durable + whether the exchange survives server restarts +.Sp +auto_delete + whether the exchange is deleted when no longer used +.Sp +arguments + exchange arguments +.RE +.PP +list_bindings [\-p \fIvhostpath\fR] + list bindings by virtual host. Each line contains exchange name, + routing key and queue name (all \s-1URL\s0 encoded) and arguments. +.PP +list_connections [\fIconnectioninfoitem\fR ...] + list connection information. If no \fIconnectioninfoitem\fRs are + specified then the user, peer address and peer port are displayed. +.PP +\fIConnection information items\fR +.IX Subsection "Connection information items" +.Sp +.RS 4 +pid + Erlang process id associated with the connection +.Sp +address + server \s-1IP\s0 number +.Sp +port + server port +.Sp +peer_address + peer address +.Sp +peer_port + peer port +.Sp +state + connection state (\fBpre-init\fR, \fBstarting\fR, \fBtuning\fR, \fBopening\fR, + \fBrunning\fR, \fBclosing\fR, \fBclosed\fR) +.Sp +channels + number of channels using the connection +.Sp +user + username associated with the connection +.Sp +vhost + URL-encoded virtual host +.Sp +timeout + connection timeout +.Sp +frame_max + maximum frame size (bytes) +.Sp +recv_oct + octets received +.Sp +recv_cnt + packets received +.Sp +send_oct + octets sent +.Sp +send_cnt + packets sent +.Sp +send_pend + send queue size +.RE +.PP +The list_queues, list_exchanges and list_bindings commands accept an +optional virtual host parameter for which to display results, defaulting +to \fI\*(L"/\*(R"\fR. The default can be overridden with the \fB\-p\fR flag. Result +columns for these commands and list_connections are tab-separated. +.SH "EXAMPLES" +.IX Header "EXAMPLES" +Create a user named foo with (initial) password bar at the Erlang node +rabbit@test: +.PP +.Vb 1 +\& rabbitmqctl \-n rabbit@test add_user foo bar +.Ve +.PP +Grant user named foo access to the virtual host called test at the +default Erlang node: +.PP +.Vb 1 +\& rabbitmqctl map_user_vhost foo test +.Ve +.PP +Append the current logs' content to the files with \*(L".1\*(R" suffix and reopen +them: +.PP +.Vb 1 +\& rabbitmqctl rotate_logs .1 +.Ve +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIrabbitmq\-multi\fR\|(1), \fIrabbitmq\-server\fR\|(1) +.SH "AUTHOR" +.IX Header "AUTHOR" +The RabbitMQ Team +.SH "REFERENCES" +.IX Header "REFERENCES" +RabbitMQ Web Site: http://www.rabbitmq.com diff --git a/packaging/gentoo/files/1.5.0/misc/rabbitmq-invoke b/packaging/gentoo/files/1.5.0/misc/rabbitmq-invoke new file mode 100644 index 00000000..53c954f5 --- /dev/null +++ b/packaging/gentoo/files/1.5.0/misc/rabbitmq-invoke @@ -0,0 +1,70 @@ +#!/bin/sh +## The contents of this file are subject to the Mozilla Public License +## Version 1.1 (the "License"); you may not use this file except in +## compliance with the License. You may obtain a copy of the License at +## http://www.mozilla.org/MPL/ +## +## Software distributed under the License is distributed on an "AS IS" +## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +## License for the specific language governing rights and limitations +## under the License. +## +## The Original Code is RabbitMQ. +## +## The Initial Developers of the Original Code are LShift Ltd, +## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +## +## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +## Technologies LLC, and Rabbit Technologies Ltd. +## +## Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +## Ltd. Portions created by Cohesive Financial Technologies LLC are +## Copyright (C) 2007-2009 Cohesive Financial Technologies +## LLC. Portions created by Rabbit Technologies Ltd are Copyright +## (C) 2007-2009 Rabbit Technologies Ltd. +## +## All Rights Reserved. +## +## Contributor(s): ______________________________________. +## + +# +# Gentoo specific wrapper script for rabbitmq-multi to allow creation of logs with correct ownership + +# rabbitmq-1.5.0-r1 installs to this location +DAEMON=/usr/sbin/rabbitmq-multi + + # we need this script installed correctly for us to work + if [ ! -x "${DAEMON}" ] ; + then + echo "Error can't locate `basename $DAEMON` under `dirname $DAEMON`" + exit `false` + fi + + # output directed to stdout gets logged to this file + info_log=$1 + shift 1 + if [ -z "${info_log}" ] ; + then + echo "Usage `basename $0` [--background] output-log error-log" + exit `false` + fi + + # output directed to stderr gets logged to this file + error_log=$1 + shift 1 + if [ -z "${error_log}" ] ; + then + echo "Usage `basename $0` [--background] output-log error-log" + exit `false` + fi + + # duplicate stdin/stderr to logs and screen + ( ( ( \ + ${DAEMON} $* \ + 3>&1 1>&2 2>&1 \ + ) | tee ${info_log} \ + ) 3>&2 2>&1 1>&3 | tee ${error_log} \ + ) diff --git a/packaging/gentoo/files/1.5.0/patches/0001-change-conf-dir.patch b/packaging/gentoo/files/1.5.0/patches/0001-change-conf-dir.patch new file mode 100644 index 00000000..9b3f5501 --- /dev/null +++ b/packaging/gentoo/files/1.5.0/patches/0001-change-conf-dir.patch @@ -0,0 +1,24 @@ +diff -rNup scripts/rabbitmq-multi scripts-new/rabbitmq-multi +--- scripts/rabbitmq-multi 2008-12-17 18:38:14.000000000 +0000 ++++ scripts-new/rabbitmq-multi 2008-12-24 18:13:15.000000000 +0000 +@@ -30,7 +30,7 @@ + ## Contributor(s): ______________________________________. + ## + +-[ -f /etc/default/rabbitmq ] && . /etc/default/rabbitmq ++[ -f /etc/conf.d/rabbitmq ] && . /etc/conf.d/rabbitmq + + [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} + [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=rabbit +diff -rNup scripts/rabbitmq-server scripts-new/rabbitmq-server +--- scripts/rabbitmq-server 2008-12-17 18:38:14.000000000 +0000 ++++ scripts-new/rabbitmq-server 2008-12-24 18:13:15.000000000 +0000 +@@ -30,7 +30,7 @@ + ## Contributor(s): ______________________________________. + ## + +-[ -f /etc/default/rabbitmq ] && . /etc/default/rabbitmq ++[ -f /etc/conf.d/rabbitmq ] && . /etc/conf.d/rabbitmq + + [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} + [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=rabbit diff --git a/packaging/gentoo/metadata.xml b/packaging/gentoo/metadata.xml new file mode 100644 index 00000000..fe4b71e1 --- /dev/null +++ b/packaging/gentoo/metadata.xml @@ -0,0 +1,20 @@ + + + + no-herd + + + Install rabbitmq docs + + + + jamal@lshift.net + Jamal Natour + + + + This package provides RabbitMQ, an server implementation of AMQP. + AMQP is the emerging standard for high performance enterprise messaging. + http://www.rabbitmq.com/faq.html#what-is-amqp + + diff --git a/packaging/gentoo/rabbitmq-server-1.5.0-r1.ebuild b/packaging/gentoo/rabbitmq-server-1.5.0-r1.ebuild new file mode 100644 index 00000000..b8d01004 --- /dev/null +++ b/packaging/gentoo/rabbitmq-server-1.5.0-r1.ebuild @@ -0,0 +1,175 @@ +# copyright 1999-2008 gentoo foundation +# distributed under the terms of the gnu general public license v2 +# $header: $ + +inherit eutils +DESCRIPTION="RabbitMQ is a high-performance AMQP-compliant message broker written in Erlang." +HOMEPAGE="http://www.rabbitmq.com/" +SRC_URI="http://www.rabbitmq.com/releases/${PN}/v${PV}/${P}.tar.gz" +LICENSE="MPL" +SLOT="0" +KEYWORDS="~alpha amd64 ~ppc ~ppc64 ~sparc x86" +IUSE="+docs" + +# runtime time deps +RDEPEND="dev-lang/erlang + app-admin/logrotate" + +# build time deps +DEPEND="dev-lang/erlang + dev-python/simplejson" + +src_install() +{ +# Erlang module + einfo "Installing rabbit erlang module" + local targetdir="/usr/$(get_libdir)/erlang/lib/${P}" + dodir "${targetdir}" \ + || die "failed to create ${targetdir} for ${P}" + + cp -dpr ${S}/ebin ${S}/include "${D}/${targetdir}" \ + || die "failed to install erlang module for ${P}" + + fperms 700 ${targetdir} \ + || die "failed to chmod erlang module for ${P}" + + fowners rabbitmq:rabbitmq ${targetdir} \ + || die "failed to chown erlang module for ${P}" + +# Server scripts + einfo "Installing rabbit scripts" + cd ${S}/scripts + dosbin ${PN/server/multi} \ + || die "failed to install rabbitmq-multi for ${P}" + dosbin ${PN} \ + || die "failed to install rabbitmq-server for ${P}" + dosbin ${PN/-server/ctl} \ + || die "failed to install rabbitmqctl for ${P}" + dosbin ${FILESDIR}/${PV}/misc/${PN/server/invoke} \ + || die "failed to install rabbitmq-invoke for ${P}" + +# Docs + if use docs; then + einfo "Installing rabbit docs" + cd ${S} + dodoc INSTALL LICENSE LICENSE-MPL-RabbitMQ \ + || die "Failed when installing rabbit docs" + fi + +# Man pages + einfo "installing rabbit man pages" + doman ${FILESDIR}/${PV}/man/${PN/server/multi.1} \ + || die "Install of rabbitmq-multi manpage failed" + + doman ${FILESDIR}/${PV}/man/${PN/server/server.1} \ + || die "Install of rabbitmq-server manpage failed" + + doman ${FILESDIR}/${PV}/man/${PN/-server/.5} \ + || die "Install of rabbitmq manpage failed" + + doman ${FILESDIR}/${PV}/man/${PN/-server/ctl.1} \ + || die "Install of rabbitmqctl manpage failed" + +# Server configuration + einfo "Installing rabbit configuration" + local fname=${PN/server/cluster.example} + newconfd ${FILESDIR}/${PV}/init.d/${PN}.confd ${PN} \ + || die "failed to install conf.d file for ${P}" + +# Example clustering configuration + einfo "Installing example rabbit cluster configuration" + newconfd ${FILESDIR}/${PV}/init.d/${fname}.confd ${fname} \ + || die "failed to install ${fname} for ${P}" + +# Server init.d runscript + einfo "Installing rabbit init.d script" + newinitd ${FILESDIR}/${PV}/init.d/${PN}.initd ${PN} || die "failed to install init.d script for ${P}" + +# Log rotation script + einfo "Installing rabbit logrotate configuration" + insinto /etc/logrotate.d/ + doins ${FILESDIR}/${PV}/logrotate.d/${PN} || die "failed to install logrotate.d file for ${P}" + +# Log directory + dodir "/var/log/rabbitmq" \ + || die "failed to create log directory for ${P}" + + dodir /var/lib/rabbitmq \ + || die "couldn't create mnesia home" + +# mnesia + einfo "fixing user permissions for rabbitmq" + fperms 700 /var/lib/rabbitmq \ + || die "couldn't chmod mnesia home" + + fowners rabbitmq:rabbitmq /var/lib/rabbitmq \ + || die "couldn't chown mnesia home" + +# rabbit logs + einfo "fixing user permissions for rabbitmq logs" + fperms 700 /var/log/rabbitmq \ + || die "couldn't chmod rabbitmq log base" + + fowners rabbitmq:rabbitmq /var/log/rabbitmq \ + || die "couldn't chown rabbitmq log base" + +# rabbit home + einfo "fixing user permissions for rabbitmq home" + dodir /var/tmp/rabbitmq \ + || die "couldn't create rabbitmq home" + fperms 700 /var/tmp/rabbitmq \ + || die "couldn't chmod rabbitmq home" + + fowners rabbitmq:rabbitmq /var/tmp/rabbitmq \ + || die "couldn't chown rabbitmq home" +} + +unpack() +{ + unpack ${A} \ + || die "failed to unpack ${A}" + +} + +src_compile() +{ + einfo "Compiling rabbitmq-server" + cd "${S}" + # fix: change script includes to use files in /etc/conf.d + epatch ${FILESDIR}/${PV}/patches/0001-change-conf-dir.patch \ + || die "failed to patch ${S}" + emake clean || die "failed to clean ${P}" + emake || die "failed to make ${P}" +} + +pkg_setup() +{ + # add rabbitmq user and group so we can run as a nologin user + einfo "adding rabbitmq group" + enewgroup rabbitmq \ + || die "couldn't create rabbitmq group" + + # rabbit requires a writeable home directory + einfo "adding rabbitmq user" + enewuser rabbitmq -1 -1 /var/tmp/rabbitmq rabbitmq \ + || die "couldn't create rabbitmq user" +} + +pkg_postinst() +{ + # tell user this is not an offical ebuild + ewarn "IMPORTANT:" + ewarn "This is an unofficial ebuild for RabbitMQ (server) " + ewarn "If you encounter any problems, do NOT file bugs to gentoo" + ewarn "bugzilla. Instead, post into this ebuild's topic on the" + ewarn "Gentoo Bugzilla list" + ewarn + ewarn "link:" + ewarn "http://bugs.gentoo.org/show_bug.cgi?id=192278" + + # explain how to run as daemon + elog "You can configure RabbitMQ to run as a daemon by running:" + elog + elog "rc-update add rabbitmq-server default" + elog +} diff --git a/packaging/gentoo/rabbitmq-server-1.5.0.ebuild b/packaging/gentoo/rabbitmq-server-1.5.0.ebuild new file mode 100644 index 00000000..9aa7ae4b --- /dev/null +++ b/packaging/gentoo/rabbitmq-server-1.5.0.ebuild @@ -0,0 +1,39 @@ +# Copyright 1999-2008 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# $Header: $ + +inherit eutils + +DESCRIPTION="RabbitMQ is a high-performance AMQP-compliant message broker written in Erlang." +HOMEPAGE="http://www.rabbitmq.com/" +SRC_URI="http://www.rabbitmq.com/releases/rabbitmq-server/v${PV}/rabbitmq-server-generic-unix-${PV}.tar.gz" +LICENSE="MPL" +SLOT="0" +KEYWORDS="~alpha ~amd64 ~ppc ~ppc64 ~sparc ~x86" +IUSE="" + +# Q: is RDEPEND-only sufficient for a binary package, since we don't compile? +DEPEND="dev-lang/erlang" +RDEPEND="${DEPEND}" + +# grr: the packaged directory contains an underscore +MODNAME="rabbitmq_server-${PV}" +S="${WORKDIR}/${MODNAME}" + +src_install() { + # erlang module + local targetdir="/usr/$(get_libdir)/erlang/lib/${MODNAME}" + dodir "${targetdir}" + cp -dpR ebin include "${D}/${targetdir}" + + # scripts + dosbin sbin/* + + # docs + dodoc INSTALL LICENSE LICENSE-MPL-RabbitMQ + + # TODO: + # config to set env vars as per INSTALL? + # set LOGDIR to /var/log/rabbitmq.log + # run as different user? +} -- cgit v1.2.1 From 54f920d19b5699f8a8a9a1e24db3de04ec05bafc Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Wed, 14 Jan 2009 13:08:37 +0000 Subject: Added POC for capabilities --- src/rabbit_capability.erl | 180 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 180 insertions(+) create mode 100644 src/rabbit_capability.erl diff --git a/src/rabbit_capability.erl b/src/rabbit_capability.erl new file mode 100644 index 00000000..f572042a --- /dev/null +++ b/src/rabbit_capability.erl @@ -0,0 +1,180 @@ +-module(rabbit_capability). + + +-include("rabbit.hrl"). +-include("rabbit_framing.hrl"). + +-compile(export_all). + +-record('delegate.create', {capability, command}). +-record('delegate.create_ok', {forwarding_facet, revoking_facet}). +-record('delegate.revoke', {capability}). +-record('delegate.revoke_ok', {}). + +-record(state, {caps = dict:new()}). + +%% This is a test case to for creating and revoking forwarding capabilites, +%% which follows the following steps: +%% +%% 1. There is a root capability to create exchanges; +%% 2. Root creates a delegate to this functionality and gives the forwarding +%% facet to Alice; +%% 3. Alice now has the capability C to a delegate that can execute the +%% exchange.declare command. To declare an exchange, Alice does the following: +%% * Sends an exchange.declare command as she would in a world without +%% * capabilities with the exception that she adds the capability C as an +%% * argument to the command; +%% * The channel detects the presence of the capability argument, +%% * resolves the delegate function and executes it with the +%% * exchange.declare command from Alice in situ; +%% * The result is returned to Alice; +%% 4. If Alice wants to delegate the ability to create exchanges to Bob, she +%% can either: +%% * Create a delegate that forwards to the delegate for which Alice +%% * has the capability C; +%% * Just give Bob the capability C; + +test_exchange_declare() -> + %% Create the root state + RootState = root_state(), + %% Assert that root can create an exchange + RootExchangeDeclare = #'exchange.declare'{arguments = [exchange_root]}, + {#'exchange.declare_ok'{}, State0} + = run_command(RootExchangeDeclare, RootState), + %% Create a delegate to create exchanges + {#'delegate.create_ok'{forwarding_facet = AlicesForward, + revoking_facet = RootsRevoke}, State1} + = run_command(#'delegate.create'{capability = delegate_create_root, + command = RootExchangeDeclare}, + State0), + %% Use the forwarding facet to create an exchange + AlicesExchangeDeclare = #'exchange.declare'{arguments = [AlicesForward]}, + {#'exchange.declare_ok'{}, State2} + = run_command(AlicesExchangeDeclare, State1), + %% Use the revoking facet to revoke the capability to create exchanges + RevocationByRoot = #'delegate.revoke'{capability = RootsRevoke}, + {#'delegate.revoke_ok'{}, State3} + = run_command(RevocationByRoot, State2), + %% Assert the forwarding facet no longer works + {access_denied, State4} + = run_command(AlicesExchangeDeclare, State3), + + %% ------------------------------------------------------------------- + %% Create a second delegate that forwards to the first + + {#'delegate.create_ok'{forwarding_facet = BobsForward, + revoking_facet = AlicesRevoke}, State5} + = run_command(#'delegate.create'{capability = delegate_create_root, + command = AlicesExchangeDeclare}, + State1), + %% Use the delegated forwarding facet to create an exchange + BobsExchangeDeclare = #'exchange.declare'{arguments = [BobsForward]}, + {#'exchange.declare_ok'{}, State6} + = run_command(BobsExchangeDeclare, State5), + %% Use the original revoking facet to revoke the capability to create + %% exchanges in a cascading fashion + {#'delegate.revoke_ok'{}, State7} + = run_command(RevocationByRoot, State6), + %% Assert the delegated forwarding facet no longer works + {access_denied, State8} + = run_command(BobsExchangeDeclare, State7), + + ok. + +%% --------------------------------------------------------------------------- +%% These functions intercept the AMQP command set - basically this is a typed +%% wrapper around the underlying execute_delegate/3 function +%% --------------------------------------------------------------------------- + +run_command(Command = #'exchange.declare'{arguments = [Cap|_]}, State) -> + execute_delegate(Command, Cap, State); + +run_command(Command = #'delegate.create'{capability = Cap}, State) -> + execute_delegate(Command, Cap, State); + +run_command(Command = #'delegate.revoke'{capability = Cap}, State) -> + execute_delegate(Command, Cap, State). + +%% --------------------------------------------------------------------------- +%% Internal plumbing +%% --------------------------------------------------------------------------- +execute_delegate(Command, Cap, State) -> + case resolve_capability(Cap, State) of + {ok, Fun} -> Fun(Command, State); + error -> {access_denied, State} + end. + +resolve_capability(Capability, #state{caps = Caps}) -> + dict:find(Capability, Caps). + +add_capability(Capability, Delegate, State = #state{caps = Caps}) -> + State#state{ caps = dict:store(Capability, Delegate, Caps) }. + +remove_capability(Capability, State = #state{caps = Caps}) -> + State#state{ caps = dict:erase(Capability, Caps) }. + +uuid() -> + {A, B, C} = now(), + <>. + +%% --------------------------------------------------------------------------- +%% This is how the chains of delegation are rooted - essentially this is known +%% set of root capabilities that the super user would have to configure the +%% system with +%% --------------------------------------------------------------------------- + +root_state() -> + State0 = #state{}, + %% The root capability to create exchanges + State1 = add_capability(exchange_root, + fun(Command = #'exchange.declare'{}, State) -> + handle_method(Command, State) + end, State0), + %% The root capability to create delegates + State2 = add_capability(delegate_create_root, + fun(Command = #'delegate.create'{}, State) -> + handle_method(Command, State) + end, State1), + State2. + + +%% --------------------------------------------------------------------------- +%% The internal API, which has no knowledge of capabilities. +%% This is roughly analogous the current channel API in Rabbit. +%% --------------------------------------------------------------------------- + +handle_method(#'delegate.create'{capability = Cap, + command = Command}, State) -> + true = is_valid(Command), + + ForwardCapability = uuid(), + RevokeCapability = uuid(), + + ForwardingFacet + = fun(_Command, _State) -> + %% If the command types do not match up, then throw an error + if + element(1, _Command) =:= element(1, Command) -> + run_command(Command, _State); + true -> + exit(command_mismatch) + end + end, + + RevokingFacet = fun(_Command, _State) -> + NewState = remove_capability(ForwardCapability, + _State), + {#'delegate.revoke_ok'{}, NewState} + end, + + NewState = add_capability(ForwardCapability, ForwardingFacet, State), + NewState2 = add_capability(RevokeCapability, RevokingFacet, NewState), + {#'delegate.create_ok'{forwarding_facet = ForwardCapability, + revoking_facet = RevokeCapability}, NewState2}; + +handle_method(Command = #'exchange.declare'{}, State) -> + {#'exchange.declare_ok'{}, State}. + +is_valid(_Command) -> + true. + -- cgit v1.2.1 From c9ad5182ab629ad8752c347b9eccbed4cbf1c76e Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Wed, 14 Jan 2009 22:11:00 +0000 Subject: Introduced a binding test, but this is just a savepoint --- src/rabbit_capability.erl | 56 +++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 52 insertions(+), 4 deletions(-) diff --git a/src/rabbit_capability.erl b/src/rabbit_capability.erl index f572042a..072586ed 100644 --- a/src/rabbit_capability.erl +++ b/src/rabbit_capability.erl @@ -11,6 +11,11 @@ -record('delegate.revoke', {capability}). -record('delegate.revoke_ok', {}). +%% This is an experimental hack for the fact that the exchange.bind_ok and +%% queue.bind_ok are empty commands - all it does is to carry a securely +%% generated capability +-record('secure.declare_ok', {capability}). + -record(state, {caps = dict:new()}). %% This is a test case to for creating and revoking forwarding capabilites, @@ -34,7 +39,7 @@ %% * has the capability C; %% * Just give Bob the capability C; -test_exchange_declare() -> +exchange_declare_test() -> %% Create the root state RootState = root_state(), %% Assert that root can create an exchange @@ -80,7 +85,39 @@ test_exchange_declare() -> = run_command(BobsExchangeDeclare, State7), ok. - + +bind_test() -> + %% Create the root state + RootState = root_state(), + %% Assert that root can issue a bind command + RootBind = #'queue.bind'{arguments = [bind_root]}, + {#'queue.bind_ok'{}, State0} + = run_command(RootBind, RootState), + %% ------------------------------------START OF COPY / PASTE + %% Create a delegate to create exchanges + RootExchangeDeclare = #'exchange.declare'{arguments = [exchange_root]}, + {#'delegate.create_ok'{forwarding_facet = AlicesExDecForward, + revoking_facet = RootsExDecRevoke}, State1} + = run_command(#'delegate.create'{capability = delegate_create_root, + command = RootExchangeDeclare}, + State0), + %% Use the forwarding facet to create an exchange + AlicesExDec = #'exchange.declare'{arguments = [AlicesExDecForward]}, + {#'exchange.declare_ok'{}, State2} + = run_command(AlicesExDec, State1), + %% ------------------------------------END OF COPY / PASTE + + %% Create a delegate to issue bind commands + {#'delegate.create_ok'{forwarding_facet = AlicesBindForward, + revoking_facet = RootsBindRevoke}, State3} + = run_command(#'delegate.create'{capability = delegate_create_root, + command = RootBind}, + State2), + + + + ok. + %% --------------------------------------------------------------------------- %% These functions intercept the AMQP command set - basically this is a typed %% wrapper around the underlying execute_delegate/3 function @@ -88,6 +125,9 @@ test_exchange_declare() -> run_command(Command = #'exchange.declare'{arguments = [Cap|_]}, State) -> execute_delegate(Command, Cap, State); + +run_command(Command = #'queue.bind'{arguments = [Cap|_]}, State) -> + execute_delegate(Command, Cap, State); run_command(Command = #'delegate.create'{capability = Cap}, State) -> execute_delegate(Command, Cap, State); @@ -135,7 +175,12 @@ root_state() -> fun(Command = #'delegate.create'{}, State) -> handle_method(Command, State) end, State1), - State2. + %% The root capability to create delegates + State3 = add_capability(bind_root, + fun(Command = #'queue.bind'{}, State) -> + handle_method(Command, State) + end, State2), + State3. %% --------------------------------------------------------------------------- @@ -173,7 +218,10 @@ handle_method(#'delegate.create'{capability = Cap, revoking_facet = RevokeCapability}, NewState2}; handle_method(Command = #'exchange.declare'{}, State) -> - {#'exchange.declare_ok'{}, State}. + {#'exchange.declare_ok'{}, State}; + +handle_method(Command = #'queue.bind'{}, State) -> + {#'queue.bind_ok'{}, State}. is_valid(_Command) -> true. -- cgit v1.2.1 From 2b05abd212ee1efb95f8b88df6ea05ed8fdb0816 Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Fri, 16 Jan 2009 01:15:04 +0000 Subject: Another savepoint --- src/rabbit_capability.erl | 71 +++++++++++++++++++++++++++++++++++++---------- 1 file changed, 57 insertions(+), 14 deletions(-) diff --git a/src/rabbit_capability.erl b/src/rabbit_capability.erl index 072586ed..e90eeb76 100644 --- a/src/rabbit_capability.erl +++ b/src/rabbit_capability.erl @@ -6,7 +6,8 @@ -compile(export_all). --record('delegate.create', {capability, command}). +-record('delegate.create', {capability, + command}). -record('delegate.create_ok', {forwarding_facet, revoking_facet}). -record('delegate.revoke', {capability}). -record('delegate.revoke_ok', {}). @@ -14,7 +15,7 @@ %% This is an experimental hack for the fact that the exchange.bind_ok and %% queue.bind_ok are empty commands - all it does is to carry a securely %% generated capability --record('secure.declare_ok', {capability}). +-record('secure.ok', {capability}). -record(state, {caps = dict:new()}). @@ -44,7 +45,7 @@ exchange_declare_test() -> RootState = root_state(), %% Assert that root can create an exchange RootExchangeDeclare = #'exchange.declare'{arguments = [exchange_root]}, - {#'exchange.declare_ok'{}, State0} + {#'secure.ok'{}, State0} = run_command(RootExchangeDeclare, RootState), %% Create a delegate to create exchanges {#'delegate.create_ok'{forwarding_facet = AlicesForward, @@ -54,7 +55,7 @@ exchange_declare_test() -> State0), %% Use the forwarding facet to create an exchange AlicesExchangeDeclare = #'exchange.declare'{arguments = [AlicesForward]}, - {#'exchange.declare_ok'{}, State2} + {#'secure.ok'{}, State2} = run_command(AlicesExchangeDeclare, State1), %% Use the revoking facet to revoke the capability to create exchanges RevocationByRoot = #'delegate.revoke'{capability = RootsRevoke}, @@ -74,7 +75,7 @@ exchange_declare_test() -> State1), %% Use the delegated forwarding facet to create an exchange BobsExchangeDeclare = #'exchange.declare'{arguments = [BobsForward]}, - {#'exchange.declare_ok'{}, State6} + {#'secure.ok'{}, State6} = run_command(BobsExchangeDeclare, State5), %% Use the original revoking facet to revoke the capability to create %% exchanges in a cascading fashion @@ -90,9 +91,9 @@ bind_test() -> %% Create the root state RootState = root_state(), %% Assert that root can issue a bind command - RootBind = #'queue.bind'{arguments = [bind_root]}, - {#'queue.bind_ok'{}, State0} - = run_command(RootBind, RootState), + RootsBind = #'queue.bind'{arguments = [bind_root]}, + {#'secure.ok'{}, State0} + = run_command(RootsBind, RootState), %% ------------------------------------START OF COPY / PASTE %% Create a delegate to create exchanges RootExchangeDeclare = #'exchange.declare'{arguments = [exchange_root]}, @@ -103,18 +104,49 @@ bind_test() -> State0), %% Use the forwarding facet to create an exchange AlicesExDec = #'exchange.declare'{arguments = [AlicesExDecForward]}, - {#'exchange.declare_ok'{}, State2} + {#'secure.ok'{capability = AlicesExCap}, State2} = run_command(AlicesExDec, State1), %% ------------------------------------END OF COPY / PASTE + + %% The important observation here is the Alice now has the capability to + %% whatever she wants with the exchange - so let's see her do something + %% useful with it %% Create a delegate to issue bind commands {#'delegate.create_ok'{forwarding_facet = AlicesBindForward, revoking_facet = RootsBindRevoke}, State3} = run_command(#'delegate.create'{capability = delegate_create_root, - command = RootBind}, + command = RootsBind}, State2), + %% Use the forwarding facet to bind something + AlicesBind = #'queue.bind'{arguments = [AlicesBindForward]}, + {#'secure.ok'{capability = AlicesBindCap}, State4} + = run_command(AlicesBind, State3), + + %% This is where it gets tricky - to be able to bind to an exchange, + %% Alice not only needs the capability to bind, but she also requires + %% the capability to the exchange object that she is binding to........ + + %% The bind command is a join between an exchange and a queue + BobsBindDelegate = #'queue.bind'{queue = undefined, + routing_key = undefined, + %% undefined will be filled in by the compiler + %% just making the destinction between trusted + %% and untrusted clear + exchange = AlicesExCap, + arguments = [AlicesBindForward]}, + {#'delegate.create_ok'{forwarding_facet = BobsBindForward, + revoking_facet = AlicesBindRevoke}, State5} + = run_command(#'delegate.create'{capability = delegate_create_root, + command = BobsBindDelegate}, + State4), + BobsBind = #'queue.bind'{queue = <<"untrusted">>, + routing_key = <<"also untrusted">>, + arguments = [BobsBindForward]}, + {#'secure.ok'{capability = BobsBindCap}, State6} + = run_command(BobsBindDelegate, State5), ok. @@ -184,7 +216,7 @@ root_state() -> %% --------------------------------------------------------------------------- -%% The internal API, which has no knowledge of capabilities. +%% The internal API, which has *little* knowledge of capabilities. %% This is roughly analogous the current channel API in Rabbit. %% --------------------------------------------------------------------------- @@ -218,10 +250,21 @@ handle_method(#'delegate.create'{capability = Cap, revoking_facet = RevokeCapability}, NewState2}; handle_method(Command = #'exchange.declare'{}, State) -> - {#'exchange.declare_ok'{}, State}; + Cap = uuid(), + %% TODO Do something with this + {#'secure.ok'{capability = Cap}, State}; -handle_method(Command = #'queue.bind'{}, State) -> - {#'queue.bind_ok'{}, State}. +handle_method(Command = #'queue.bind'{queue = Q, + exchange = X, + routing_key = K}, State) -> + + + + + + Cap = uuid(), + %% TODO Do something with this + {#'secure.ok'{capability = Cap}, State}. is_valid(_Command) -> true. -- cgit v1.2.1 From 1ae672401da23f9a4252f361293766cddcc0179e Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Tue, 20 Jan 2009 23:10:21 +0000 Subject: Another savepoint --- src/rabbit_capability.erl | 121 ++++++++++++++++++++++++++++++++++------------ 1 file changed, 89 insertions(+), 32 deletions(-) diff --git a/src/rabbit_capability.erl b/src/rabbit_capability.erl index e90eeb76..1dc07d71 100644 --- a/src/rabbit_capability.erl +++ b/src/rabbit_capability.erl @@ -7,7 +7,7 @@ -compile(export_all). -record('delegate.create', {capability, - command}). + command, content}). -record('delegate.create_ok', {forwarding_facet, revoking_facet}). -record('delegate.revoke', {capability}). -record('delegate.revoke_ok', {}). @@ -90,11 +90,18 @@ exchange_declare_test() -> bind_test() -> %% Create the root state RootState = root_state(), - %% Assert that root can issue a bind command + %% Assert that root can issue bind and publish commands RootsBind = #'queue.bind'{arguments = [bind_root]}, {#'secure.ok'{}, State0} = run_command(RootsBind, RootState), - %% ------------------------------------START OF COPY / PASTE + RootsPublish = #'basic.publish'{}, + Cont = #content{class_id = 60, %% Hardcoded :-) + properties = #'P_basic'{headers = [publish_root]}, + properties_bin = none, + %% Define as undefined to make a distinction + payload_fragments_rev = undefined}, + {noreply, State0} = run_command(RootsPublish, Cont, RootState), + %% Create a delegate to create exchanges RootExchangeDeclare = #'exchange.declare'{arguments = [exchange_root]}, {#'delegate.create_ok'{forwarding_facet = AlicesExDecForward, @@ -106,7 +113,6 @@ bind_test() -> AlicesExDec = #'exchange.declare'{arguments = [AlicesExDecForward]}, {#'secure.ok'{capability = AlicesExCap}, State2} = run_command(AlicesExDec, State1), - %% ------------------------------------END OF COPY / PASTE %% The important observation here is the Alice now has the capability to %% whatever she wants with the exchange - so let's see her do something @@ -147,7 +153,25 @@ bind_test() -> arguments = [BobsBindForward]}, {#'secure.ok'{capability = BobsBindCap}, State6} = run_command(BobsBindDelegate, State5), - + + %% Create a delegate to issue publish commands + {#'delegate.create_ok'{forwarding_facet = AlicesPublishForward, + revoking_facet = RootsPublishRevoke}, State7} + = run_command(#'delegate.create'{capability = delegate_create_root, + command = RootsPublish}, + State6), + + %% Create a delegate to give to Carol so that she can send messages + ContentDelegate + = #content{properties = #'P_basic'{headers = [AlicesPublishForward]}}, + {#'delegate.create_ok'{forwarding_facet = CarolsPublishForward, + revoking_facet = AlicesPublishRevoke}, State8} + = run_command(#'delegate.create'{capability = delegate_create_root, + command = #'basic.publish'{} + }, + ContentDelegate, + State7), + ok. %% --------------------------------------------------------------------------- @@ -157,7 +181,7 @@ bind_test() -> run_command(Command = #'exchange.declare'{arguments = [Cap|_]}, State) -> execute_delegate(Command, Cap, State); - + run_command(Command = #'queue.bind'{arguments = [Cap|_]}, State) -> execute_delegate(Command, Cap, State); @@ -167,6 +191,15 @@ run_command(Command = #'delegate.create'{capability = Cap}, State) -> run_command(Command = #'delegate.revoke'{capability = Cap}, State) -> execute_delegate(Command, Cap, State). +run_command(Command = #'delegate.create'{capability = Cap}, + Content, State) -> + execute_delegate(Command, Content, Cap, State); + +run_command(Command = #'basic.publish'{}, + Content = #content{properties = #'P_basic'{headers = [Cap|_]}}, + State) -> + execute_delegate(Command, Content, Cap, State). + %% --------------------------------------------------------------------------- %% Internal plumbing %% --------------------------------------------------------------------------- @@ -176,6 +209,12 @@ execute_delegate(Command, Cap, State) -> error -> {access_denied, State} end. +execute_delegate(Command, Content, Cap, State) -> + case resolve_capability(Cap, State) of + {ok, Fun} -> Fun(Command, Content, State); + error -> {access_denied, State} + end. + resolve_capability(Capability, #state{caps = Caps}) -> dict:find(Capability, Caps). @@ -207,12 +246,18 @@ root_state() -> fun(Command = #'delegate.create'{}, State) -> handle_method(Command, State) end, State1), - %% The root capability to create delegates + %% The root capability to bind queues to exchanges State3 = add_capability(bind_root, fun(Command = #'queue.bind'{}, State) -> handle_method(Command, State) end, State2), - State3. + %% The root capability to create publish messages + State4 = add_capability(publish_root, + fun(Command = #'basic.publish'{}, + Content, State) -> + handle_method(Command, Content, State) + end, State3), + State4. %% --------------------------------------------------------------------------- @@ -220,23 +265,48 @@ root_state() -> %% This is roughly analogous the current channel API in Rabbit. %% --------------------------------------------------------------------------- +handle_method(Delegate = #'delegate.create'{}, State) -> + handle_method(Delegate, none, State); + +handle_method(Command = #'exchange.declare'{}, State) -> + Cap = uuid(), + %% TODO Do something with this + {#'secure.ok'{capability = Cap}, State}; + +handle_method(Command = #'queue.bind'{queue = Q, + exchange = X, + routing_key = K}, State) -> + Cap = uuid(), + %% TODO Do something with this + {#'secure.ok'{capability = Cap}, State}. + handle_method(#'delegate.create'{capability = Cap, - command = Command}, State) -> + command = Command}, Content, State) -> true = is_valid(Command), ForwardCapability = uuid(), RevokeCapability = uuid(), - ForwardingFacet - = fun(_Command, _State) -> - %% If the command types do not match up, then throw an error + %% If the command types do not match up, then throw an error + Check = fun(X) -> if - element(1, _Command) =:= element(1, Command) -> - run_command(Command, _State); - true -> - exit(command_mismatch) + element(1, X) =:= element(1, Command) -> ok; + true -> exit(command_mismatch) end - end, + end, + + ForwardingFacet + = case Content of + none -> fun(_Command, _State) -> + Check(_Command), + run_command(Command, _State) + end; + _ -> + fun(_Command, _Content, _State) -> + Check(_Command), + run_command(Command, _Content, _State) + end + end, RevokingFacet = fun(_Command, _State) -> NewState = remove_capability(ForwardCapability, @@ -249,22 +319,9 @@ handle_method(#'delegate.create'{capability = Cap, {#'delegate.create_ok'{forwarding_facet = ForwardCapability, revoking_facet = RevokeCapability}, NewState2}; -handle_method(Command = #'exchange.declare'{}, State) -> - Cap = uuid(), - %% TODO Do something with this - {#'secure.ok'{capability = Cap}, State}; +handle_method(Command = #'basic.publish'{}, Content, State) -> + {noreply, State}. -handle_method(Command = #'queue.bind'{queue = Q, - exchange = X, - routing_key = K}, State) -> - - - - - - Cap = uuid(), - %% TODO Do something with this - {#'secure.ok'{capability = Cap}, State}. is_valid(_Command) -> true. -- cgit v1.2.1 From d99424d4dec619c6541cdf5d282fc64b0f055d55 Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Thu, 22 Jan 2009 00:01:58 +0000 Subject: Implemented test for bogus intents --- src/rabbit_capability.erl | 169 ++++++++++++++++++++++++++++------------------ 1 file changed, 103 insertions(+), 66 deletions(-) diff --git a/src/rabbit_capability.erl b/src/rabbit_capability.erl index 1dc07d71..cae713f9 100644 --- a/src/rabbit_capability.erl +++ b/src/rabbit_capability.erl @@ -6,8 +6,7 @@ -compile(export_all). --record('delegate.create', {capability, - command, content}). +-record('delegate.create', {capability, command, content}). -record('delegate.create_ok', {forwarding_facet, revoking_facet}). -record('delegate.revoke', {capability}). -record('delegate.revoke_ok', {}). @@ -17,8 +16,17 @@ %% generated capability -record('secure.ok', {capability}). +%% This is a new version of the basic.publish command that carries a +%% capability in the command - NB you *could* put this into the message +%% arguments but it makes the usage cmplicated and ambiguous +-record('basic.publish2', {capability}). + -record(state, {caps = dict:new()}). +test() -> + ok = exchange_declare_test(), + ok = bogus_intent_test(). + %% This is a test case to for creating and revoking forwarding capabilites, %% which follows the following steps: %% @@ -86,21 +94,35 @@ exchange_declare_test() -> = run_command(BobsExchangeDeclare, State7), ok. - -bind_test() -> + +%% This is a test case to for creating and forwarding capabilites on the +%% same exchange entity. This demonstrates how different delegates +%% encapsulate different intents in a way that is specified by the owner +%% of the underlying entity: +%% +%% 1. There is a root capability to create exchanges and bindings +%% as well as to publish messages; +%% 2. Root creates a delegate to these functionalities and gives +%% the forwarding facets to Alice; +%% 3. Alice creates an exchange that she would like to protect; +%% 4. Alice creates a delegate to allow Bob to bind queues to her exchange +%% and a delegate to allow Carol to publish messages to her exchange +%% 5. After this has been verified, Bob and Carol try to be sneaky with +%% the delegates they have been given. Each one of them tries to misuse +%% the capability to perform a different action to the delegate they +%% possess, i.e. Bob tries to send a message whilst Carol tries to bind +%% a queue to the exchange - they both find out that their respective +%% capabilities have been bound by intent :-) +%% +bogus_intent_test() -> %% Create the root state RootState = root_state(), %% Assert that root can issue bind and publish commands RootsBind = #'queue.bind'{arguments = [bind_root]}, {#'secure.ok'{}, State0} = run_command(RootsBind, RootState), - RootsPublish = #'basic.publish'{}, - Cont = #content{class_id = 60, %% Hardcoded :-) - properties = #'P_basic'{headers = [publish_root]}, - properties_bin = none, - %% Define as undefined to make a distinction - payload_fragments_rev = undefined}, - {noreply, State0} = run_command(RootsPublish, Cont, RootState), + RootsPublish = #'basic.publish2'{capability = publish_root}, + {noreply, State0} = run_command(RootsPublish, #content{}, RootState), %% Create a delegate to create exchanges RootExchangeDeclare = #'exchange.declare'{arguments = [exchange_root]}, @@ -162,16 +184,30 @@ bind_test() -> State6), %% Create a delegate to give to Carol so that she can send messages - ContentDelegate - = #content{properties = #'P_basic'{headers = [AlicesPublishForward]}}, + CarolsPublishDelegate + = #'basic.publish2'{capability = AlicesPublishForward}, + {#'delegate.create_ok'{forwarding_facet = CarolsPublishForward, revoking_facet = AlicesPublishRevoke}, State8} = run_command(#'delegate.create'{capability = delegate_create_root, - command = #'basic.publish'{} - }, - ContentDelegate, + command = CarolsPublishDelegate}, State7), - + + %% Then have Carol publish a message + CarolsPublish = #'basic.publish2'{capability = CarolsPublishForward}, + {noreply, _} = run_command(CarolsPublish, #content{}, State8), + + %% Carol then tries to bind a queue to the exchange that she *knows* about + CarolsBind = #'queue.bind'{queue = <<"untrusted">>, + routing_key = <<"also untrusted">>, + arguments = [CarolsPublishForward]}, + {access_denied, _} = run_command(CarolsBind, State8), + + %% Alternatively let Bob try to publish a message to + %% the exchange that he *knows* about + BobsPublish = #'basic.publish2'{capability = BobsBindForward}, + {access_denied, _} = run_command(BobsPublish, #content{}, State8), + ok. %% --------------------------------------------------------------------------- @@ -190,14 +226,8 @@ run_command(Command = #'delegate.create'{capability = Cap}, State) -> run_command(Command = #'delegate.revoke'{capability = Cap}, State) -> execute_delegate(Command, Cap, State). - -run_command(Command = #'delegate.create'{capability = Cap}, - Content, State) -> - execute_delegate(Command, Content, Cap, State); - -run_command(Command = #'basic.publish'{}, - Content = #content{properties = #'P_basic'{headers = [Cap|_]}}, - State) -> + +run_command(Command = #'basic.publish2'{capability = Cap}, Content, State) -> execute_delegate(Command, Content, Cap, State). %% --------------------------------------------------------------------------- @@ -205,13 +235,21 @@ run_command(Command = #'basic.publish'{}, %% --------------------------------------------------------------------------- execute_delegate(Command, Cap, State) -> case resolve_capability(Cap, State) of - {ok, Fun} -> Fun(Command, State); + {ok, Fun} -> case catch Fun(Command, State) of + %% Put this in case an f/3 delegate is resolved + {'EXIT', _} -> {access_denied, State}; + X -> X + end; error -> {access_denied, State} end. execute_delegate(Command, Content, Cap, State) -> case resolve_capability(Cap, State) of - {ok, Fun} -> Fun(Command, Content, State); + {ok, Fun} -> case catch Fun(Command, Content, State) of + %% Put this in case an f/2 delegate is resolved + {'EXIT', _} -> {access_denied, State}; + X -> X + end; error -> {access_denied, State} end. @@ -253,7 +291,7 @@ root_state() -> end, State2), %% The root capability to create publish messages State4 = add_capability(publish_root, - fun(Command = #'basic.publish'{}, + fun(Command = #'basic.publish2'{}, Content, State) -> handle_method(Command, Content, State) end, State3), @@ -265,48 +303,36 @@ root_state() -> %% This is roughly analogous the current channel API in Rabbit. %% --------------------------------------------------------------------------- -handle_method(Delegate = #'delegate.create'{}, State) -> - handle_method(Delegate, none, State); - -handle_method(Command = #'exchange.declare'{}, State) -> - Cap = uuid(), - %% TODO Do something with this - {#'secure.ok'{capability = Cap}, State}; - -handle_method(Command = #'queue.bind'{queue = Q, - exchange = X, - routing_key = K}, State) -> - Cap = uuid(), - %% TODO Do something with this - {#'secure.ok'{capability = Cap}, State}. - handle_method(#'delegate.create'{capability = Cap, - command = Command}, Content, State) -> + command = Command}, State) -> true = is_valid(Command), - ForwardCapability = uuid(), RevokeCapability = uuid(), - %% If the command types do not match up, then throw an error - Check = fun(X) -> + ForwardingFacet = + case contains_content(Command) of + false -> + fun(_Command, _State) -> + %% If the command types do not match up, then throw an error + if + element(1, _Command) =:= element(1, Command) -> + run_command(Command, _State); + true -> + exit(command_mismatch) + end + end; + %% This is copy and paste, could be better factored :-( + true -> + fun(_Command, _Content, _State) -> + %% If the command types do not match up, then throw an error if - element(1, X) =:= element(1, Command) -> ok; - true -> exit(command_mismatch) + element(1, _Command) =:= element(1, Command) -> + run_command(Command, _Content, _State); + true -> + exit(command_mismatch) end - end, - - ForwardingFacet - = case Content of - none -> fun(_Command, _State) -> - Check(_Command), - run_command(Command, _State) - end; - _ -> - fun(_Command, _Content, _State) -> - Check(_Command), - run_command(Command, _Content, _State) - end - end, + end + end, RevokingFacet = fun(_Command, _State) -> NewState = remove_capability(ForwardCapability, @@ -319,10 +345,21 @@ handle_method(#'delegate.create'{capability = Cap, {#'delegate.create_ok'{forwarding_facet = ForwardCapability, revoking_facet = RevokeCapability}, NewState2}; -handle_method(Command = #'basic.publish'{}, Content, State) -> +handle_method(Command = #'exchange.declare'{}, State) -> + Cap = uuid(), %% TODO Do something with this + {#'secure.ok'{capability = Cap}, State}; + +handle_method(Command = #'queue.bind'{queue = Q, + exchange = X, + routing_key = K}, State) -> + Cap = uuid(), %% TODO Do something with this + {#'secure.ok'{capability = Cap}, State}. + +handle_method(Command = #'basic.publish2'{}, Content, State) -> {noreply, State}. +contains_content(#'basic.publish2'{}) -> true; +contains_content(_) -> false. -is_valid(_Command) -> - true. +is_valid(_Command) -> true. -- cgit v1.2.1 From 135453fbcffaf4ffb26543458d8b1c254722852d Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Sun, 15 Feb 2009 20:41:44 +0000 Subject: Reformat items --- docs/rabbitmqctl.1.pod | 174 +++++++++++++++++++++++++++++-------------------- 1 file changed, 104 insertions(+), 70 deletions(-) diff --git a/docs/rabbitmqctl.1.pod b/docs/rabbitmqctl.1.pod index d86aa271..981adf30 100644 --- a/docs/rabbitmqctl.1.pod +++ b/docs/rabbitmqctl.1.pod @@ -143,46 +143,59 @@ list_queues [-p I] [I ...] =over 4 -name - URL-encoded name of the queue +=item name -durable - whether the queue survives server restarts +URL-encoded name of the queue -auto_delete - whether the queue will be deleted when no longer used +=item durable -arguments - queue arguments +whether the queue survives server restarts -node - node on which the process associated with the queue resides +=item auto_delete -messages_ready - number of messages ready to be delivered to clients +whether the queue will be deleted when no longer used -messages_unacknowledged - number of messages delivered to clients but not yet acknowledged +=item arguments -messages_uncommitted - number of messages published in as yet uncommitted transactions +queue arguments -messages - sum of ready, unacknowledged and uncommitted messages +=item node -acks_uncommitted - number of acknowledgements received in as yet uncommitted - transactions +node on which the process associated with the queue resides -consumers - number of consumers +=item messages_ready +number of messages ready to be delivered to clients + +=item messages_unacknowledged + +number of messages delivered to clients but not yet acknowledged + +=item messages_uncommitted + +number of messages published in as yet uncommitted transactions + +=item messages + +sum of ready, unacknowledged and uncommitted messages + +=item acks_uncommitted + +number of acknowledgements received in as yet uncommitted transactions - number of transactions -memory - bytes of memory consumed by the Erlang process for the queue, - including stack, heap and internal structures +=item consumers + +number of consumers + +=item transactions + +number of transactions + +=item memory + +bytes of memory consumed by the Erlang process for the queue, +including stack, heap and internal structures =back @@ -195,20 +208,25 @@ list_exchanges [-p I] [I ...] =over 4 -name - URL-encoded name of the exchange +=item name + +URL-encoded name of the exchange + +=item type + +exchange type (B, B or B) + +=item durable -type - exchange type (B, B or B) +whether the exchange survives server restarts -durable - whether the exchange survives server restarts +=item auto_delete -auto_delete - whether the exchange is deleted when no longer used +whether the exchange is deleted when no longer used -arguments - exchange arguments +=item arguments + +exchange arguments =back @@ -224,54 +242,70 @@ list_connections [I ...] =over 4 -node - node on which the process associated with the connection resides +=item node + +node on which the process associated with the connection resides + +=item address + +server IP number + +=item port + +server port + +=item peer_address + +peer address + +=item peer_port + +peer port + +=item state + +connection state (B, B, B, B, +B, B, B) + +=item channels + +number of channels using the connection + +=item user + +username associated with the connection + +=item vhost -address - server IP number +URL-encoded virtual host -port - server port +=item timeout -peer_address - peer address +connection timeout -peer_port - peer port +=item frame_max -state - connection state (B, B, B, B, - B, B, B) +maximum frame size (bytes) -channels - number of channels using the connection +=item recv_oct -user - username associated with the connection +octets received -vhost - URL-encoded virtual host +=item recv_cnt -timeout - connection timeout +packets received -frame_max - maximum frame size (bytes) +=item send_oct -recv_oct - octets received +octets sent -recv_cnt - packets received +=item send_cnt -send_oct - octets sent +packets sent -send_cnt - packets sent +=item send_pend -send_pend - send queue size +send queue size =back -- cgit v1.2.1 From 9b463e6d0a8f47783e14ac26b6b0e11f4bb2b756 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 16 Feb 2009 11:35:59 +0000 Subject: Backed out changeset 7b5f544468b6 since it pulled in a load of work from the default branch. --- .hgignore | 1 - Makefile | 21 +- docs/rabbitmqctl.1.pod | 65 ++- ebin/rabbit.app | 57 +++ ebin/rabbit_app.in | 21 - generate_app | 10 - include/rabbit.hrl | 7 - scripts/rabbitmq-multi | 5 - scripts/rabbitmq-server | 5 - src/buffering_proxy.erl | 108 +++++ src/gen_server2.erl | 854 ------------------------------------- src/rabbit.erl | 42 +- src/rabbit_access_control.erl | 189 +++----- src/rabbit_alarm.erl | 8 +- src/rabbit_amqqueue.erl | 88 ++-- src/rabbit_amqqueue_process.erl | 178 +++----- src/rabbit_channel.erl | 310 +++++--------- src/rabbit_control.erl | 93 ++-- src/rabbit_error_logger_file_h.erl | 2 +- src/rabbit_exchange.erl | 231 +++------- src/rabbit_framing_channel.erl | 6 +- src/rabbit_limiter.erl | 195 --------- src/rabbit_misc.erl | 36 +- src/rabbit_mnesia.erl | 75 ++-- src/rabbit_networking.erl | 8 +- src/rabbit_reader.erl | 20 +- src/rabbit_router.erl | 10 +- src/rabbit_sasl_report_file_h.erl | 2 +- src/rabbit_tests.erl | 31 +- 29 files changed, 673 insertions(+), 2005 deletions(-) create mode 100644 ebin/rabbit.app delete mode 100644 ebin/rabbit_app.in delete mode 100644 generate_app create mode 100644 src/buffering_proxy.erl delete mode 100644 src/gen_server2.erl delete mode 100644 src/rabbit_limiter.erl diff --git a/.hgignore b/.hgignore index 35607765..28f9cfd8 100644 --- a/.hgignore +++ b/.hgignore @@ -9,7 +9,6 @@ syntax: regexp ^include/rabbit_framing.hrl$ ^src/rabbit_framing.erl$ ^rabbit.plt$ -^ebin/rabbit.app$ ^packaging/RPMS/Fedora/(BUILD|RPMS|SOURCES|SPECS|SRPMS)$ ^packaging/debs/Debian/rabbitmq-server_.*\.(dsc|(diff|tar)\.gz|deb|changes)$ diff --git a/Makefile b/Makefile index e19c0d56..f924b8e6 100644 --- a/Makefile +++ b/Makefile @@ -7,8 +7,7 @@ SOURCE_DIR=src EBIN_DIR=ebin INCLUDE_DIR=include SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) -BEAM_TARGETS=$(EBIN_DIR)/rabbit_framing.beam $(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam,$(SOURCES)) -TARGETS=$(EBIN_DIR)/rabbit.app $(BEAM_TARGETS) +TARGETS=$(EBIN_DIR)/rabbit_framing.beam $(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam,$(SOURCES)) WEB_URL=http://stage.rabbitmq.com/ MANPAGES=$(patsubst %.pod, %.gz, $(wildcard docs/*.[0-9].pod)) @@ -40,15 +39,9 @@ ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e #all: $(EBIN_DIR)/rabbit.boot all: $(TARGETS) -$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app - escript generate_app $(EBIN_DIR) < $< > $@ - -$(EBIN_DIR)/gen_server2.beam: $(SOURCE_DIR)/gen_server2.erl +$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl $(INCLUDE_DIR)/rabbit_framing.hrl $(INCLUDE_DIR)/rabbit.hrl erlc $(ERLC_OPTS) $< - -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl $(INCLUDE_DIR)/rabbit_framing.hrl $(INCLUDE_DIR)/rabbit.hrl $(EBIN_DIR)/gen_server2.beam - erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< -# ERLC_EMULATOR="erl -smp" erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< +# ERLC_EMULATOR="erl -smp" erlc $(ERLC_OPTS) $< $(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_PATH) $(PYTHON) codegen.py header $(AMQP_SPEC_JSON_PATH) $@ @@ -59,12 +52,12 @@ $(SOURCE_DIR)/rabbit_framing.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script: $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.rel $(TARGETS) erl -noshell -eval 'systools:make_script("ebin/rabbit", [{path, ["ebin"]}]), halt().' -dialyze: $(BEAM_TARGETS) +dialyze: $(TARGETS) dialyzer -c $? clean: cleandb rm -f $(EBIN_DIR)/*.beam - rm -f $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script + rm -f $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCE_DIR)/rabbit_framing.erl codegen.pyc rm -f docs/*.[0-9].gz @@ -129,8 +122,8 @@ srcdist: distclean >> $(TARGET_SRC_DIR)/INSTALL cp README.in $(TARGET_SRC_DIR)/README elinks -dump -no-references -no-numbering $(WEB_URL)build-server.html \ - >> $(TARGET_SRC_DIR)/BUILD - sed -i 's/%%VERSION%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in + >> $(TARGET_SRC_DIR)/README + sed -i 's/%%VERSION%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit.app cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ cp codegen.py Makefile $(TARGET_SRC_DIR) diff --git a/docs/rabbitmqctl.1.pod b/docs/rabbitmqctl.1.pod index d86aa271..d2cb0199 100644 --- a/docs/rabbitmqctl.1.pod +++ b/docs/rabbitmqctl.1.pod @@ -26,7 +26,7 @@ B<-n> I startup time). The output of hostname -s is usually the correct suffix to use after the "@" sign. See rabbitmq-server(1) for details of configuring the RabbitMQ broker. - + B<-q> quiet output mode is selected with the B<-q> flag. Informational messages are suppressed when quiet mode is in effect. @@ -43,32 +43,32 @@ stop_app This command is typically run prior to performing other management actions that require the RabbitMQ application to be stopped, e.g. I. - + start_app start the RabbitMQ application. This command is typically run prior to performing other management actions that require the RabbitMQ application to be stopped, e.g. I. - + status display various information about the RabbitMQ broker, such as whether the RabbitMQ application on the current node, its version number, what nodes are part of the broker, which of these are running. - + force return a RabbitMQ node to its virgin state. Removes the node from any cluster it belongs to, removes all data from the management database, such as configured users, vhosts and deletes all persistent messages. - + force_reset the same as I command, but resets the node unconditionally, regardless of the current management database state and cluster configuration. It should only be used as a last resort if the database or cluster configuration has been corrupted. - + rotate_logs [suffix] instruct the RabbitMQ node to rotate the log files. The RabbitMQ broker will attempt to append the current contents of the log file @@ -81,57 +81,48 @@ rotate_logs [suffix] specified. This command might be helpful when you are e.g. writing your own logrotate script and you do not want to restart the RabbitMQ node. - + cluster I ... instruct the node to become member of a cluster with the specified nodes determined by I option(s). See http://www.rabbitmq.com/clustering.html for more information about clustering. - + =head2 USER MANAGEMENT - + add_user I I create a user named I with (initial) password I. - -delete_user I - delete the user named I. - + change_password I I change the password for the user named I to I. list_users list all users. - + =head2 ACCESS CONTROL add_vhost I create a new virtual host called I. - + delete_vhost I delete a virtual host I. That command deletes also all its exchanges, queues and user mappings. - + list_vhosts list all virtual hosts. - -set_permissions [-p I] I I I I - set the permissions for the user named I in the virtual - host I, granting 'configure', 'write' and 'read' access - to resources with names matching the first, second and third - I, respectively. - -clear_permissions [-p I] I - remove the permissions for the user named I in the - virtual host I. - -list_permissions [-p I] - list all the users and their permissions in the virtual host + +map_user_vhost I I + grant the user named I access to the virtual host called + I. + +unmap_user_vhost I I + deny the user named I access to the virtual host called I. -list_user_permissions I - list the permissions of the user named I across all - virtual hosts. - +list_user_vhost I + list all the virtual hosts to which the user named I has + been granted access. + =head2 SERVER STATUS list_queues [-p I] [I ...] @@ -238,7 +229,7 @@ peer_address peer_port peer port - + state connection state (B, B, B, B, B, B, B) @@ -272,7 +263,7 @@ send_cnt send_pend send queue size - + =back The list_queues, list_exchanges and list_bindings commands accept an @@ -286,12 +277,12 @@ Create a user named foo with (initial) password bar at the Erlang node rabbit@test: rabbitmqctl -n rabbit@test add_user foo bar - + Grant user named foo access to the virtual host called test at the default Erlang node: rabbitmqctl map_user_vhost foo test - + Append the current logs' content to the files with ".1" suffix and reopen them: diff --git a/ebin/rabbit.app b/ebin/rabbit.app new file mode 100644 index 00000000..0d714fdf --- /dev/null +++ b/ebin/rabbit.app @@ -0,0 +1,57 @@ +{application, rabbit, %% -*- erlang -*- + [{description, "RabbitMQ"}, + {id, "RabbitMQ"}, + {vsn, "%%VERSION%%"}, + {modules, [buffering_proxy, + rabbit_access_control, + rabbit_alarm, + rabbit_amqqueue, + rabbit_amqqueue_process, + rabbit_amqqueue_sup, + rabbit_binary_generator, + rabbit_binary_parser, + rabbit_channel, + rabbit_control, + rabbit, + rabbit_error_logger, + rabbit_error_logger_file_h, + rabbit_exchange, + rabbit_framing_channel, + rabbit_framing, + rabbit_heartbeat, + rabbit_load, + rabbit_log, + rabbit_memsup_linux, + rabbit_misc, + rabbit_mnesia, + rabbit_multi, + rabbit_networking, + rabbit_node_monitor, + rabbit_persister, + rabbit_reader, + rabbit_router, + rabbit_sasl_report_file_h, + rabbit_sup, + rabbit_tests, + rabbit_tracer, + rabbit_writer, + tcp_acceptor, + tcp_acceptor_sup, + tcp_client_sup, + tcp_listener, + tcp_listener_sup]}, + {registered, [rabbit_amqqueue_sup, + rabbit_log, + rabbit_node_monitor, + rabbit_persister, + rabbit_router, + rabbit_sup, + rabbit_tcp_client_sup]}, + {applications, [kernel, stdlib, sasl, mnesia, os_mon]}, + {mod, {rabbit, []}}, + {env, [{tcp_listeners, [{"0.0.0.0", 5672}]}, + {extra_startup_steps, []}, + {default_user, <<"guest">>}, + {default_pass, <<"guest">>}, + {default_vhost, <<"/">>}, + {memory_alarms, auto}]}]}. diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in deleted file mode 100644 index 5be07492..00000000 --- a/ebin/rabbit_app.in +++ /dev/null @@ -1,21 +0,0 @@ -{application, rabbit, %% -*- erlang -*- - [{description, "RabbitMQ"}, - {id, "RabbitMQ"}, - {vsn, "%%VERSION%%"}, - {modules, []}, - {registered, [rabbit_amqqueue_sup, - rabbit_log, - rabbit_node_monitor, - rabbit_persister, - rabbit_router, - rabbit_sup, - rabbit_tcp_client_sup]}, - {applications, [kernel, stdlib, sasl, mnesia, os_mon]}, - {mod, {rabbit, []}}, - {env, [{tcp_listeners, [{"0.0.0.0", 5672}]}, - {extra_startup_steps, []}, - {default_user, <<"guest">>}, - {default_pass, <<"guest">>}, - {default_vhost, <<"/">>}, - {default_permissions, [<<".*">>, <<".*">>, <<".*">>]}, - {memory_alarms, auto}]}]}. diff --git a/generate_app b/generate_app deleted file mode 100644 index 62301292..00000000 --- a/generate_app +++ /dev/null @@ -1,10 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- - -main([BeamDir]) -> - Modules = [list_to_atom(filename:basename(F, ".beam")) || - F <- filelib:wildcard("*.beam", BeamDir)], - {ok, {application, Application, Properties}} = io:read(''), - NewProperties = lists:keyreplace(modules, 1, Properties, - {modules, Modules}), - io:format("~p.", [{application, Application, NewProperties}]). diff --git a/include/rabbit.hrl b/include/rabbit.hrl index c707112f..d07aeaf8 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -30,9 +30,7 @@ %% -record(user, {username, password}). --record(permission, {configure, write, read}). -record(user_vhost, {username, virtual_host}). --record(user_permission, {user_vhost, permission}). -record(vhost, {virtual_host, dummy}). @@ -76,7 +74,6 @@ -type(thunk(T) :: fun(() -> T)). -type(info_key() :: atom()). -type(info() :: {info_key(), any()}). --type(regexp() :: binary()). %% this is really an abstract type, but dialyzer does not support them -type(guid() :: any()). @@ -91,10 +88,6 @@ -type(user() :: #user{username :: username(), password :: password()}). --type(permission() :: - #permission{configure :: regexp(), - write :: regexp(), - read :: regexp()}). -type(amqqueue() :: #amqqueue{name :: queue_name(), durable :: bool(), diff --git a/scripts/rabbitmq-multi b/scripts/rabbitmq-multi index 164c5e18..84985e90 100755 --- a/scripts/rabbitmq-multi +++ b/scripts/rabbitmq-multi @@ -54,11 +54,6 @@ export \ RABBITMQ_SCRIPT_HOME \ RABBITMQ_PIDS_FILE -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_MULTI_ERL_ARGS, may contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - exec erl \ -pa "`dirname $0`/../ebin" \ -noinput \ diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 9a35c477..572262c9 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -73,11 +73,6 @@ fi RABBITMQ_START_RABBIT= [ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT='-noinput -s rabbit' -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_SERVER_ERL_ARGS, contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - exec erl \ -pa "`dirname $0`/../ebin" \ ${RABBITMQ_START_RABBIT} \ diff --git a/src/buffering_proxy.erl b/src/buffering_proxy.erl new file mode 100644 index 00000000..344b719a --- /dev/null +++ b/src/buffering_proxy.erl @@ -0,0 +1,108 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(buffering_proxy). + +-export([start_link/2]). + +%% internal + +-export([mainloop/4, drain/2]). +-export([proxy_loop/3]). + +-define(HIBERNATE_AFTER, 5000). + +%%---------------------------------------------------------------------------- + +start_link(M, A) -> + spawn_link( + fun () -> process_flag(trap_exit, true), + ProxyPid = self(), + Ref = make_ref(), + Pid = spawn_link( + fun () -> ProxyPid ! Ref, + mainloop(ProxyPid, Ref, M, + M:init(ProxyPid, A)) end), + proxy_loop(Ref, Pid, empty) + end). + +%%---------------------------------------------------------------------------- + +mainloop(ProxyPid, Ref, M, State) -> + NewState = + receive + {Ref, Messages} -> + NewSt = + lists:foldl(fun (Msg, S) -> + drain(M, M:handle_message(Msg, S)) + end, State, lists:reverse(Messages)), + ProxyPid ! Ref, + NewSt; + Msg -> M:handle_message(Msg, State) + after ?HIBERNATE_AFTER -> + erlang:hibernate(?MODULE, mainloop, + [ProxyPid, Ref, M, State]) + end, + ?MODULE:mainloop(ProxyPid, Ref, M, NewState). + +drain(M, State) -> + receive + Msg -> ?MODULE:drain(M, M:handle_message(Msg, State)) + after 0 -> + State + end. + +proxy_loop(Ref, Pid, State) -> + receive + Ref -> + ?MODULE:proxy_loop( + Ref, Pid, + case State of + empty -> waiting; + waiting -> exit(duplicate_next); + Messages -> Pid ! {Ref, Messages}, empty + end); + {'EXIT', Pid, Reason} -> + exit(Reason); + {'EXIT', _, Reason} -> + exit(Pid, Reason), + ?MODULE:proxy_loop(Ref, Pid, State); + Msg -> + ?MODULE:proxy_loop( + Ref, Pid, + case State of + empty -> [Msg]; + waiting -> Pid ! {Ref, [Msg]}, empty; + Messages -> [Msg | Messages] + end) + after ?HIBERNATE_AFTER -> + erlang:hibernate(?MODULE, proxy_loop, [Ref, Pid, State]) + end. diff --git a/src/gen_server2.erl b/src/gen_server2.erl deleted file mode 100644 index 11bb66d7..00000000 --- a/src/gen_server2.erl +++ /dev/null @@ -1,854 +0,0 @@ -%% This file is a copy of gen_server.erl from the R11B-5 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is gen_server2 -%% -%% 2) more efficient handling of selective receives in callbacks -%% gen_server2 processes drain their message queue into an internal -%% buffer before invoking any callback module functions. Messages are -%% dequeued from the buffer for processing. Thus the effective message -%% queue of a gen_server2 process is the concatenation of the internal -%% buffer and the real message queue. -%% As a result of the draining, any selective receive invoked inside a -%% callback is less likely to have to scan a large message queue. -%% -%% 3) gen_server2:cast is guaranteed to be order-preserving -%% The original code could reorder messages when communicating with a -%% process on a remote node that was not currently connected. -%% -%% All modifications are (C) 2009 LShift Ltd. - -%% ``The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved via the world wide web at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. -%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings -%% AB. All Rights Reserved.'' -%% -%% $Id$ -%% --module(gen_server2). - -%%% --------------------------------------------------- -%%% -%%% The idea behind THIS server is that the user module -%%% provides (different) functions to handle different -%%% kind of inputs. -%%% If the Parent process terminates the Module:terminate/2 -%%% function is called. -%%% -%%% The user module should export: -%%% -%%% init(Args) -%%% ==> {ok, State} -%%% {ok, State, Timeout} -%%% ignore -%%% {stop, Reason} -%%% -%%% handle_call(Msg, {From, Tag}, State) -%%% -%%% ==> {reply, Reply, State} -%%% {reply, Reply, State, Timeout} -%%% {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, Reply, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_cast(Msg, State) -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_info(Info, State) Info is e.g. {'EXIT', P, R}, {nodedown, N}, ... -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% terminate(Reason, State) Let the user module clean up -%%% always called when server terminates -%%% -%%% ==> ok -%%% -%%% -%%% The work flow (of the server) can be described as follows: -%%% -%%% User module Generic -%%% ----------- ------- -%%% start -----> start -%%% init <----- . -%%% -%%% loop -%%% handle_call <----- . -%%% -----> reply -%%% -%%% handle_cast <----- . -%%% -%%% handle_info <----- . -%%% -%%% terminate <----- . -%%% -%%% -----> reply -%%% -%%% -%%% --------------------------------------------------- - -%% API --export([start/3, start/4, - start_link/3, start_link/4, - call/2, call/3, - cast/2, reply/2, - abcast/2, abcast/3, - multi_call/2, multi_call/3, multi_call/4, - enter_loop/3, enter_loop/4, enter_loop/5]). - --export([behaviour_info/1]). - -%% System exports --export([system_continue/3, - system_terminate/4, - system_code_change/4, - format_status/2]). - -%% Internal exports --export([init_it/6, print_event/3]). - --import(error_logger, [format/2]). - -%%%========================================================================= -%%% API -%%%========================================================================= - -behaviour_info(callbacks) -> - [{init,1},{handle_call,3},{handle_cast,2},{handle_info,2}, - {terminate,2},{code_change,3}]; -behaviour_info(_Other) -> - undefined. - -%%% ----------------------------------------------------------------- -%%% Starts a generic server. -%%% start(Mod, Args, Options) -%%% start(Name, Mod, Args, Options) -%%% start_link(Mod, Args, Options) -%%% start_link(Name, Mod, Args, Options) where: -%%% Name ::= {local, atom()} | {global, atom()} -%%% Mod ::= atom(), callback module implementing the 'real' server -%%% Args ::= term(), init arguments (to Mod:init/1) -%%% Options ::= [{timeout, Timeout} | {debug, [Flag]}] -%%% Flag ::= trace | log | {logfile, File} | statistics | debug -%%% (debug == log && statistics) -%%% Returns: {ok, Pid} | -%%% {error, {already_started, Pid}} | -%%% {error, Reason} -%%% ----------------------------------------------------------------- -start(Mod, Args, Options) -> - gen:start(?MODULE, nolink, Mod, Args, Options). - -start(Name, Mod, Args, Options) -> - gen:start(?MODULE, nolink, Name, Mod, Args, Options). - -start_link(Mod, Args, Options) -> - gen:start(?MODULE, link, Mod, Args, Options). - -start_link(Name, Mod, Args, Options) -> - gen:start(?MODULE, link, Name, Mod, Args, Options). - - -%% ----------------------------------------------------------------- -%% Make a call to a generic server. -%% If the server is located at another node, that node will -%% be monitored. -%% If the client is trapping exits and is linked server termination -%% is handled here (? Shall we do that here (or rely on timeouts) ?). -%% ----------------------------------------------------------------- -call(Name, Request) -> - case catch gen:call(Name, '$gen_call', Request) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request]}}) - end. - -call(Name, Request, Timeout) -> - case catch gen:call(Name, '$gen_call', Request, Timeout) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request, Timeout]}}) - end. - -%% ----------------------------------------------------------------- -%% Make a cast to a generic server. -%% ----------------------------------------------------------------- -cast({global,Name}, Request) -> - catch global:send(Name, cast_msg(Request)), - ok; -cast({Name,Node}=Dest, Request) when is_atom(Name), is_atom(Node) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_atom(Dest) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_pid(Dest) -> - do_cast(Dest, Request). - -do_cast(Dest, Request) -> - do_send(Dest, cast_msg(Request)), - ok. - -cast_msg(Request) -> {'$gen_cast',Request}. - -%% ----------------------------------------------------------------- -%% Send a reply to the client. -%% ----------------------------------------------------------------- -reply({To, Tag}, Reply) -> - catch To ! {Tag, Reply}. - -%% ----------------------------------------------------------------- -%% Asyncronous broadcast, returns nothing, it's just send'n prey -%%----------------------------------------------------------------- -abcast(Name, Request) when is_atom(Name) -> - do_abcast([node() | nodes()], Name, cast_msg(Request)). - -abcast(Nodes, Name, Request) when is_list(Nodes), is_atom(Name) -> - do_abcast(Nodes, Name, cast_msg(Request)). - -do_abcast([Node|Nodes], Name, Msg) when is_atom(Node) -> - do_send({Name,Node},Msg), - do_abcast(Nodes, Name, Msg); -do_abcast([], _,_) -> abcast. - -%%% ----------------------------------------------------------------- -%%% Make a call to servers at several nodes. -%%% Returns: {[Replies],[BadNodes]} -%%% A Timeout can be given -%%% -%%% A middleman process is used in case late answers arrives after -%%% the timeout. If they would be allowed to glog the callers message -%%% queue, it would probably become confused. Late answers will -%%% now arrive to the terminated middleman and so be discarded. -%%% ----------------------------------------------------------------- -multi_call(Name, Req) - when is_atom(Name) -> - do_multi_call([node() | nodes()], Name, Req, infinity). - -multi_call(Nodes, Name, Req) - when is_list(Nodes), is_atom(Name) -> - do_multi_call(Nodes, Name, Req, infinity). - -multi_call(Nodes, Name, Req, infinity) -> - do_multi_call(Nodes, Name, Req, infinity); -multi_call(Nodes, Name, Req, Timeout) - when is_list(Nodes), is_atom(Name), is_integer(Timeout), Timeout >= 0 -> - do_multi_call(Nodes, Name, Req, Timeout). - - -%%----------------------------------------------------------------- -%% enter_loop(Mod, Options, State, , ) ->_ -%% -%% Description: Makes an existing process into a gen_server. -%% The calling process will enter the gen_server receive -%% loop and become a gen_server process. -%% The process *must* have been started using one of the -%% start functions in proc_lib, see proc_lib(3). -%% The user is responsible for any initialization of the -%% process, including registering a name for it. -%%----------------------------------------------------------------- -enter_loop(Mod, Options, State) -> - enter_loop(Mod, Options, State, self(), infinity). - -enter_loop(Mod, Options, State, ServerName = {_, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity); - -enter_loop(Mod, Options, State, Timeout) -> - enter_loop(Mod, Options, State, self(), Timeout). - -enter_loop(Mod, Options, State, ServerName, Timeout) -> - Name = get_proc_name(ServerName), - Parent = get_parent(), - Debug = debug_options(Name, Options), - Queue = queue:new(), - loop(Parent, Name, State, Mod, Timeout, Queue, Debug). - -%%%======================================================================== -%%% Gen-callback functions -%%%======================================================================== - -%%% --------------------------------------------------- -%%% Initiate the new process. -%%% Register the name using the Rfunc function -%%% Calls the Mod:init/Args function. -%%% Finally an acknowledge is sent to Parent and the main -%%% loop is entered. -%%% --------------------------------------------------- -init_it(Starter, self, Name, Mod, Args, Options) -> - init_it(Starter, self(), Name, Mod, Args, Options); -init_it(Starter, Parent, Name, Mod, Args, Options) -> - Debug = debug_options(Name, Options), - Queue = queue:new(), - case catch Mod:init(Args) of - {ok, State} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(Parent, Name, State, Mod, infinity, Queue, Debug); - {ok, State, Timeout} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(Parent, Name, State, Mod, Timeout, Queue, Debug); - {stop, Reason} -> - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - ignore -> - proc_lib:init_ack(Starter, ignore), - exit(normal); - {'EXIT', Reason} -> - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - Else -> - Error = {bad_return_value, Else}, - proc_lib:init_ack(Starter, {error, Error}), - exit(Error) - end. - -%%%======================================================================== -%%% Internal functions -%%%======================================================================== -%%% --------------------------------------------------- -%%% The MAIN loop. -%%% --------------------------------------------------- -loop(Parent, Name, State, Mod, Time, Queue, Debug) -> - receive - Input -> loop(Parent, Name, State, Mod, - Time, queue:in(Input, Queue), Debug) - after 0 -> - case queue:out(Queue) of - {{value, Msg}, Queue1} -> - process_msg(Parent, Name, State, Mod, - Time, Queue1, Debug, Msg); - {empty, Queue1} -> - receive - Input -> - loop(Parent, Name, State, Mod, - Time, queue:in(Input, Queue1), Debug) - after Time -> - process_msg(Parent, Name, State, Mod, - Time, Queue1, Debug, timeout) - end - end - end. - -process_msg(Parent, Name, State, Mod, Time, Queue, Debug, Msg) -> - case Msg of - {system, From, Req} -> - sys:handle_system_msg(Req, From, Parent, ?MODULE, Debug, - [Name, State, Mod, Time, Queue]); - {'EXIT', Parent, Reason} -> - terminate(Reason, Name, Msg, Mod, State, Debug); - _Msg when Debug =:= [] -> - handle_msg(Msg, Parent, Name, State, Mod, Time, Queue); - _Msg -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, - Name, {in, Msg}), - handle_msg(Msg, Parent, Name, State, Mod, Time, Queue, Debug1) - end. - -%%% --------------------------------------------------- -%%% Send/recive functions -%%% --------------------------------------------------- -do_send(Dest, Msg) -> - catch erlang:send(Dest, Msg). - -do_multi_call(Nodes, Name, Req, infinity) -> - Tag = make_ref(), - Monitors = send_nodes(Nodes, Name, Tag, Req), - rec_nodes(Tag, Monitors, Name, undefined); -do_multi_call(Nodes, Name, Req, Timeout) -> - Tag = make_ref(), - Caller = self(), - Receiver = - spawn( - fun() -> - %% Middleman process. Should be unsensitive to regular - %% exit signals. The sychronization is needed in case - %% the receiver would exit before the caller started - %% the monitor. - process_flag(trap_exit, true), - Mref = erlang:monitor(process, Caller), - receive - {Caller,Tag} -> - Monitors = send_nodes(Nodes, Name, Tag, Req), - TimerId = erlang:start_timer(Timeout, self(), ok), - Result = rec_nodes(Tag, Monitors, Name, TimerId), - exit({self(),Tag,Result}); - {'DOWN',Mref,_,_,_} -> - %% Caller died before sending us the go-ahead. - %% Give up silently. - exit(normal) - end - end), - Mref = erlang:monitor(process, Receiver), - Receiver ! {self(),Tag}, - receive - {'DOWN',Mref,_,_,{Receiver,Tag,Result}} -> - Result; - {'DOWN',Mref,_,_,Reason} -> - %% The middleman code failed. Or someone did - %% exit(_, kill) on the middleman process => Reason==killed - exit(Reason) - end. - -send_nodes(Nodes, Name, Tag, Req) -> - send_nodes(Nodes, Name, Tag, Req, []). - -send_nodes([Node|Tail], Name, Tag, Req, Monitors) - when is_atom(Node) -> - Monitor = start_monitor(Node, Name), - %% Handle non-existing names in rec_nodes. - catch {Name, Node} ! {'$gen_call', {self(), {Tag, Node}}, Req}, - send_nodes(Tail, Name, Tag, Req, [Monitor | Monitors]); -send_nodes([_Node|Tail], Name, Tag, Req, Monitors) -> - %% Skip non-atom Node - send_nodes(Tail, Name, Tag, Req, Monitors); -send_nodes([], _Name, _Tag, _Req, Monitors) -> - Monitors. - -%% Against old nodes: -%% If no reply has been delivered within 2 secs. (per node) check that -%% the server really exists and wait for ever for the answer. -%% -%% Against contemporary nodes: -%% Wait for reply, server 'DOWN', or timeout from TimerId. - -rec_nodes(Tag, Nodes, Name, TimerId) -> - rec_nodes(Tag, Nodes, Name, [], [], 2000, TimerId). - -rec_nodes(Tag, [{N,R}|Tail], Name, Badnodes, Replies, Time, TimerId ) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, Time, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], Time, TimerId); - {timeout, TimerId, _} -> - unmonitor(R), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes(Tag, [N|Tail], Name, Badnodes, Replies, Time, TimerId) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, 2000, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], 2000, TimerId); - {timeout, TimerId, _} -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N | Badnodes], Replies) - after Time -> - case rpc:call(N, erlang, whereis, [Name]) of - Pid when is_pid(Pid) -> % It exists try again. - rec_nodes(Tag, [N|Tail], Name, Badnodes, - Replies, infinity, TimerId); - _ -> % badnode - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], - Replies, 2000, TimerId) - end - end; -rec_nodes(_, [], _, Badnodes, Replies, _, TimerId) -> - case catch erlang:cancel_timer(TimerId) of - false -> % It has already sent it's message - receive - {timeout, TimerId, _} -> ok - after 0 -> - ok - end; - _ -> % Timer was cancelled, or TimerId was 'undefined' - ok - end, - {Replies, Badnodes}. - -%% Collect all replies that already have arrived -rec_nodes_rest(Tag, [{N,R}|Tail], Name, Badnodes, Replies) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(Tag, [N|Tail], Name, Badnodes, Replies) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(_Tag, [], _Name, Badnodes, Replies) -> - {Replies, Badnodes}. - - -%%% --------------------------------------------------- -%%% Monitor functions -%%% --------------------------------------------------- - -start_monitor(Node, Name) when is_atom(Node), is_atom(Name) -> - if node() =:= nonode@nohost, Node =/= nonode@nohost -> - Ref = make_ref(), - self() ! {'DOWN', Ref, process, {Name, Node}, noconnection}, - {Node, Ref}; - true -> - case catch erlang:monitor(process, {Name, Node}) of - {'EXIT', _} -> - %% Remote node is R6 - monitor_node(Node, true), - Node; - Ref when is_reference(Ref) -> - {Node, Ref} - end - end. - -%% Cancels a monitor started with Ref=erlang:monitor(_, _). -unmonitor(Ref) when is_reference(Ref) -> - erlang:demonitor(Ref), - receive - {'DOWN', Ref, _, _, _} -> - true - after 0 -> - true - end. - -%%% --------------------------------------------------- -%%% Message handling functions -%%% --------------------------------------------------- - -dispatch({'$gen_cast', Msg}, Mod, State) -> - Mod:handle_cast(Msg, State); -dispatch(Info, Mod, State) -> - Mod:handle_info(Info, State). - -handle_msg({'$gen_call', From, Msg}, - Parent, Name, State, Mod, _Time, Queue) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - reply(From, Reply), - loop(Parent, Name, NState, Mod, infinity, Queue, []); - {reply, Reply, NState, Time1} -> - reply(From, Reply), - loop(Parent, Name, NState, Mod, Time1, Queue, []); - {noreply, NState} -> - loop(Parent, Name, NState, Mod, infinity, Queue, []); - {noreply, NState, Time1} -> - loop(Parent, Name, NState, Mod, Time1, Queue, []); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Name, Msg, Mod, NState, [])), - reply(From, Reply), - exit(R); - Other -> handle_common_reply(Other, - Parent, Name, Msg, Mod, State, Queue) - end; -handle_msg(Msg, - Parent, Name, State, Mod, _Time, Queue) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, Parent, Name, Msg, Mod, State, Queue). - -handle_msg({'$gen_call', From, Msg}, - Parent, Name, State, Mod, _Time, Queue, Debug) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - Debug1 = reply(Name, From, Reply, NState, Debug), - loop(Parent, Name, NState, Mod, infinity, Queue, Debug1); - {reply, Reply, NState, Time1} -> - Debug1 = reply(Name, From, Reply, NState, Debug), - loop(Parent, Name, NState, Mod, Time1, Queue, Debug1); - {noreply, NState} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(Parent, Name, NState, Mod, infinity, Queue, Debug1); - {noreply, NState, Time1} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(Parent, Name, NState, Mod, Time1, Queue, Debug1); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Name, Msg, Mod, NState, Debug)), - reply(Name, From, Reply, NState, Debug), - exit(R); - Other -> - handle_common_reply(Other, - Parent, Name, Msg, Mod, State, Queue, Debug) - end; -handle_msg(Msg, - Parent, Name, State, Mod, _Time, Queue, Debug) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, - Parent, Name, Msg, Mod, State, Queue, Debug). - -handle_common_reply(Reply, Parent, Name, Msg, Mod, State, Queue) -> - case Reply of - {noreply, NState} -> - loop(Parent, Name, NState, Mod, infinity, Queue, []); - {noreply, NState, Time1} -> - loop(Parent, Name, NState, Mod, Time1, Queue, []); - {stop, Reason, NState} -> - terminate(Reason, Name, Msg, Mod, NState, []); - {'EXIT', What} -> - terminate(What, Name, Msg, Mod, State, []); - _ -> - terminate({bad_return_value, Reply}, Name, Msg, Mod, State, []) - end. - -handle_common_reply(Reply, Parent, Name, Msg, Mod, State, Queue, Debug) -> - case Reply of - {noreply, NState} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(Parent, Name, NState, Mod, infinity, Queue, Debug1); - {noreply, NState, Time1} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(Parent, Name, NState, Mod, Time1, Queue, Debug1); - {stop, Reason, NState} -> - terminate(Reason, Name, Msg, Mod, NState, Debug); - {'EXIT', What} -> - terminate(What, Name, Msg, Mod, State, Debug); - _ -> - terminate({bad_return_value, Reply}, Name, Msg, Mod, State, Debug) - end. - -reply(Name, {To, Tag}, Reply, State, Debug) -> - reply({To, Tag}, Reply), - sys:handle_debug(Debug, {?MODULE, print_event}, Name, - {out, Reply, To, State} ). - - -%%----------------------------------------------------------------- -%% Callback functions for system messages handling. -%%----------------------------------------------------------------- -system_continue(Parent, Debug, [Name, State, Mod, Time, Queue]) -> - loop(Parent, Name, State, Mod, Time, Queue, Debug). - -system_terminate(Reason, _Parent, Debug, [Name, State, Mod, _Time, _Queue]) -> - terminate(Reason, Name, [], Mod, State, Debug). - -system_code_change([Name, State, Mod, Time, Queue], _Module, OldVsn, Extra) -> - case catch Mod:code_change(OldVsn, State, Extra) of - {ok, NewState} -> {ok, [Name, NewState, Mod, Time, Queue]}; - Else -> Else - end. - -%%----------------------------------------------------------------- -%% Format debug messages. Print them as the call-back module sees -%% them, not as the real erlang messages. Use trace for that. -%%----------------------------------------------------------------- -print_event(Dev, {in, Msg}, Name) -> - case Msg of - {'$gen_call', {From, _Tag}, Call} -> - io:format(Dev, "*DBG* ~p got call ~p from ~w~n", - [Name, Call, From]); - {'$gen_cast', Cast} -> - io:format(Dev, "*DBG* ~p got cast ~p~n", - [Name, Cast]); - _ -> - io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg]) - end; -print_event(Dev, {out, Msg, To, State}, Name) -> - io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n", - [Name, Msg, To, State]); -print_event(Dev, {noreply, State}, Name) -> - io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]); -print_event(Dev, Event, Name) -> - io:format(Dev, "*DBG* ~p dbg ~p~n", [Name, Event]). - - -%%% --------------------------------------------------- -%%% Terminate the server. -%%% --------------------------------------------------- - -terminate(Reason, Name, Msg, Mod, State, Debug) -> - case catch Mod:terminate(Reason, State) of - {'EXIT', R} -> - error_info(R, Name, Msg, State, Debug), - exit(R); - _ -> - case Reason of - normal -> - exit(normal); - shutdown -> - exit(shutdown); - _ -> - error_info(Reason, Name, Msg, State, Debug), - exit(Reason) - end - end. - -error_info(_Reason, application_controller, _Msg, _State, _Debug) -> - %% OTP-5811 Don't send an error report if it's the system process - %% application_controller which is terminating - let init take care - %% of it instead - ok; -error_info(Reason, Name, Msg, State, Debug) -> - Reason1 = - case Reason of - {undef,[{M,F,A}|MFAs]} -> - case code:is_loaded(M) of - false -> - {'module could not be loaded',[{M,F,A}|MFAs]}; - _ -> - case erlang:function_exported(M, F, length(A)) of - true -> - Reason; - false -> - {'function not exported',[{M,F,A}|MFAs]} - end - end; - _ -> - Reason - end, - format("** Generic server ~p terminating \n" - "** Last message in was ~p~n" - "** When Server state == ~p~n" - "** Reason for termination == ~n** ~p~n", - [Name, Msg, State, Reason1]), - sys:print_log(Debug), - ok. - -%%% --------------------------------------------------- -%%% Misc. functions. -%%% --------------------------------------------------- - -opt(Op, [{Op, Value}|_]) -> - {ok, Value}; -opt(Op, [_|Options]) -> - opt(Op, Options); -opt(_, []) -> - false. - -debug_options(Name, Opts) -> - case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) - end. - -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). - -dbg_opts(Name, Opts) -> - case catch sys:debug_options(Opts) of - {'EXIT',_} -> - format("~p: ignoring erroneous debug options - ~p~n", - [Name, Opts]), - []; - Dbg -> - Dbg - end. - -get_proc_name(Pid) when is_pid(Pid) -> - Pid; -get_proc_name({local, Name}) -> - case process_info(self(), registered_name) of - {registered_name, Name} -> - Name; - {registered_name, _Name} -> - exit(process_not_registered); - [] -> - exit(process_not_registered) - end; -get_proc_name({global, Name}) -> - case global:safe_whereis_name(Name) of - undefined -> - exit(process_not_registered_globally); - Pid when Pid =:= self() -> - Name; - _Pid -> - exit(process_not_registered_globally) - end. - -get_parent() -> - case get('$ancestors') of - [Parent | _] when is_pid(Parent)-> - Parent; - [Parent | _] when is_atom(Parent)-> - name_to_pid(Parent); - _ -> - exit(process_was_not_started_by_proc_lib) - end. - -name_to_pid(Name) -> - case whereis(Name) of - undefined -> - case global:safe_whereis_name(Name) of - undefined -> - exit(could_not_find_registerd_name); - Pid -> - Pid - end; - Pid -> - Pid - end. - -%%----------------------------------------------------------------- -%% Status information -%%----------------------------------------------------------------- -format_status(Opt, StatusData) -> - [PDict, SysState, Parent, Debug, [Name, State, Mod, _Time, Queue]] = - StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), - Log = sys:get_debug(log, Debug, []), - Specfic = - case erlang:function_exported(Mod, format_status, 2) of - true -> - case catch Mod:format_status(Opt, [PDict, State]) of - {'EXIT', _} -> [{data, [{"State", State}]}]; - Else -> Else - end; - _ -> - [{data, [{"State", State}]}] - end, - [{header, Header}, - {data, [{"Status", SysState}, - {"Parent", Parent}, - {"Logged events", Log}, - {"Queued messages", queue:to_list(Queue)}]} | - Specfic]. diff --git a/src/rabbit.erl b/src/rabbit.erl index d9a82f0e..41064c77 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -75,20 +75,19 @@ start() -> try ok = ensure_working_log_handlers(), ok = rabbit_mnesia:ensure_mnesia_dir(), - ok = rabbit_misc:start_applications(?APPS) + ok = start_applications(?APPS) after %%give the error loggers some time to catch up timer:sleep(100) end. stop() -> - ok = rabbit_misc:stop_applications(?APPS). + ok = stop_applications(?APPS). stop_and_halt() -> spawn(fun () -> SleepTime = 1000, - rabbit_log:info("Stop-and-halt request received; " - "halting in ~p milliseconds~n", + rabbit_log:info("Stop-and-halt request received; halting in ~p milliseconds~n", [SleepTime]), timer:sleep(SleepTime), init:stop() @@ -110,6 +109,34 @@ rotate_logs(BinarySuffix) -> %%-------------------------------------------------------------------- +manage_applications(Iterate, Do, Undo, SkipError, ErrorTag, Apps) -> + Iterate(fun (App, Acc) -> + case Do(App) of + ok -> [App | Acc]; + {error, {SkipError, _}} -> Acc; + {error, Reason} -> + lists:foreach(Undo, Acc), + throw({error, {ErrorTag, App, Reason}}) + end + end, [], Apps), + ok. + +start_applications(Apps) -> + manage_applications(fun lists:foldl/3, + fun application:start/1, + fun application:stop/1, + already_started, + cannot_start_application, + Apps). + +stop_applications(Apps) -> + manage_applications(fun lists:foldr/3, + fun application:stop/1, + fun application:start/1, + not_started, + cannot_stop_application, + Apps). + start(normal, []) -> {ok, SupPid} = rabbit_sup:start_link(), @@ -265,14 +292,9 @@ insert_default_data() -> {ok, DefaultUser} = application:get_env(default_user), {ok, DefaultPass} = application:get_env(default_pass), {ok, DefaultVHost} = application:get_env(default_vhost), - {ok, [DefaultConfigurePerm, DefaultWritePerm, DefaultReadPerm]} = - application:get_env(default_permissions), ok = rabbit_access_control:add_vhost(DefaultVHost), ok = rabbit_access_control:add_user(DefaultUser, DefaultPass), - ok = rabbit_access_control:set_permissions(DefaultUser, DefaultVHost, - DefaultConfigurePerm, - DefaultWritePerm, - DefaultReadPerm), + ok = rabbit_access_control:map_user_vhost(DefaultUser, DefaultVHost), ok. start_builtin_amq_applications() -> diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl index da0ab9cf..b73090fc 100644 --- a/src/rabbit_access_control.erl +++ b/src/rabbit_access_control.erl @@ -34,12 +34,11 @@ -include("rabbit.hrl"). -export([check_login/2, user_pass_login/2, - check_vhost_access/2, check_resource_access/3]). + check_vhost_access/2]). -export([add_user/2, delete_user/1, change_password/2, list_users/0, lookup_user/1]). --export([add_vhost/1, delete_vhost/1, list_vhosts/0]). --export([set_permissions/5, clear_permissions/2, - list_vhost_permissions/1, list_user_permissions/1]). +-export([add_vhost/1, delete_vhost/1, list_vhosts/0, list_vhost_users/1]). +-export([list_user_vhosts/1, map_user_vhost/2, unmap_user_vhost/2]). %%---------------------------------------------------------------------------- @@ -48,8 +47,6 @@ -spec(check_login/2 :: (binary(), binary()) -> user()). -spec(user_pass_login/2 :: (username(), password()) -> user()). -spec(check_vhost_access/2 :: (user(), vhost()) -> 'ok'). --spec(check_resource_access/3 :: - (username(), r(atom()), non_neg_integer()) -> 'ok'). -spec(add_user/2 :: (username(), password()) -> 'ok'). -spec(delete_user/1 :: (username()) -> 'ok'). -spec(change_password/2 :: (username(), password()) -> 'ok'). @@ -58,13 +55,10 @@ -spec(add_vhost/1 :: (vhost()) -> 'ok'). -spec(delete_vhost/1 :: (vhost()) -> 'ok'). -spec(list_vhosts/0 :: () -> [vhost()]). --spec(set_permissions/5 :: - (username(), vhost(), regexp(), regexp(), regexp()) -> 'ok'). --spec(clear_permissions/2 :: (username(), vhost()) -> 'ok'). --spec(list_vhost_permissions/1 :: - (vhost()) -> [{username(), regexp(), regexp(), regexp()}]). --spec(list_user_permissions/1 :: - (username()) -> [{vhost(), regexp(), regexp(), regexp()}]). +-spec(list_vhost_users/1 :: (vhost()) -> [username()]). +-spec(list_user_vhosts/1 :: (username()) -> [vhost()]). +-spec(map_user_vhost/2 :: (username(), vhost()) -> 'ok'). +-spec(unmap_user_vhost/2 :: (username(), vhost()) -> 'ok'). -endif. @@ -118,9 +112,9 @@ internal_lookup_vhost_access(Username, VHostPath) -> %% TODO: use dirty ops instead rabbit_misc:execute_mnesia_transaction( fun () -> - case mnesia:read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of + case mnesia:match_object( + #user_vhost{username = Username, + virtual_host = VHostPath}) of [] -> not_found; [R] -> {ok, R} end @@ -137,47 +131,13 @@ check_vhost_access(#user{username = Username}, VHostPath) -> [VHostPath, Username]) end. -check_resource_access(Username, - R = #resource{kind = exchange, name = <<"">>}, - Permission) -> - check_resource_access(Username, - R#resource{name = <<"amq.default">>}, - Permission); -check_resource_access(_Username, - #resource{name = <<"amq.gen",_/binary>>}, - _Permission) -> - ok; -check_resource_access(Username, - R = #resource{virtual_host = VHostPath, name = Name}, - Permission) -> - Res = case mnesia:dirty_read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> - false; - [#user_permission{permission = P}] -> - case regexp:match( - binary_to_list(Name), - binary_to_list(element(Permission, P))) of - {match, _, _} -> true; - nomatch -> false - end - end, - if Res -> ok; - true -> rabbit_misc:protocol_error( - access_refused, "access to ~s refused for user '~s'", - [rabbit_misc:rs(R), Username]) - end. - add_user(Username, Password) -> R = rabbit_misc:execute_mnesia_transaction( fun () -> - case mnesia:wread({rabbit_user, Username}) of + case mnesia:read({user, Username}) of [] -> - ok = mnesia:write(rabbit_user, - #user{username = Username, - password = Password}, - write); + ok = mnesia:write(#user{username = Username, + password = Password}); _ -> mnesia:abort({user_already_exists, Username}) end @@ -190,17 +150,8 @@ delete_user(Username) -> rabbit_misc:with_user( Username, fun () -> - ok = mnesia:delete({rabbit_user, Username}), - [ok = mnesia:delete_object( - rabbit_user_permissions, R, write) || - R <- mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = '_'}, - permission = '_'}, - write)], - ok + ok = mnesia:delete({user, Username}), + ok = mnesia:delete({user_vhost, Username}) end)), rabbit_log:info("Deleted user ~p~n", [Username]), R. @@ -210,28 +161,24 @@ change_password(Username, Password) -> rabbit_misc:with_user( Username, fun () -> - ok = mnesia:write(rabbit_user, - #user{username = Username, - password = Password}, - write) + ok = mnesia:write(#user{username = Username, + password = Password}) end)), rabbit_log:info("Changed password for user ~p~n", [Username]), R. list_users() -> - mnesia:dirty_all_keys(rabbit_user). + mnesia:dirty_all_keys(user). lookup_user(Username) -> - rabbit_misc:dirty_read({rabbit_user, Username}). + rabbit_misc:dirty_read({user, Username}). add_vhost(VHostPath) -> R = rabbit_misc:execute_mnesia_transaction( fun () -> - case mnesia:wread({rabbit_vhost, VHostPath}) of + case mnesia:read({vhost, VHostPath}) of [] -> - ok = mnesia:write(rabbit_vhost, - #vhost{virtual_host = VHostPath}, - write), + ok = mnesia:write(#vhost{virtual_host = VHostPath}), [rabbit_exchange:declare( rabbit_misc:r(VHostPath, exchange, Name), Type, true, false, []) || @@ -239,8 +186,6 @@ add_vhost(VHostPath) -> [{<<"">>, direct}, {<<"amq.direct">>, direct}, {<<"amq.topic">>, topic}, - {<<"amq.match">>, headers}, %% per 0-9-1 pdf - {<<"amq.headers">>, headers}, %% per 0-9-1 xml {<<"amq.fanout">>, fanout}]], ok; [_] -> @@ -273,79 +218,53 @@ internal_delete_vhost(VHostPath) -> ok = rabbit_exchange:delete(Name, false) end, rabbit_exchange:list(VHostPath)), - lists:foreach(fun ({Username, _, _, _}) -> - ok = clear_permissions(Username, VHostPath) + lists:foreach(fun (Username) -> + ok = unmap_user_vhost(Username, VHostPath) end, - list_vhost_permissions(VHostPath)), - ok = mnesia:delete({rabbit_vhost, VHostPath}), + list_vhost_users(VHostPath)), + ok = mnesia:delete({vhost, VHostPath}), ok. list_vhosts() -> - mnesia:dirty_all_keys(rabbit_vhost). + mnesia:dirty_all_keys(vhost). -validate_regexp(RegexpBin) -> - Regexp = binary_to_list(RegexpBin), - case regexp:parse(Regexp) of - {ok, _} -> ok; - {error, Reason} -> throw({error, {invalid_regexp, Regexp, Reason}}) - end. +list_vhost_users(VHostPath) -> + [Username || + #user_vhost{username = Username} <- + %% TODO: use dirty ops instead + rabbit_misc:execute_mnesia_transaction( + rabbit_misc:with_vhost( + VHostPath, + fun () -> mnesia:index_read(user_vhost, VHostPath, + #user_vhost.virtual_host) + end))]. + +list_user_vhosts(Username) -> + [VHostPath || + #user_vhost{virtual_host = VHostPath} <- + %% TODO: use dirty ops instead + rabbit_misc:execute_mnesia_transaction( + rabbit_misc:with_user( + Username, + fun () -> mnesia:read({user_vhost, Username}) end))]. -set_permissions(Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm) -> - lists:map(fun validate_regexp/1, [ConfigurePerm, WritePerm, ReadPerm]), +map_user_vhost(Username, VHostPath) -> rabbit_misc:execute_mnesia_transaction( rabbit_misc:with_user_and_vhost( Username, VHostPath, - fun () -> ok = mnesia:write( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}}, - write) + fun () -> + ok = mnesia:write( + #user_vhost{username = Username, + virtual_host = VHostPath}) end)). -clear_permissions(Username, VHostPath) -> +unmap_user_vhost(Username, VHostPath) -> rabbit_misc:execute_mnesia_transaction( rabbit_misc:with_user_and_vhost( Username, VHostPath, fun () -> - ok = mnesia:delete({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) + ok = mnesia:delete_object( + #user_vhost{username = Username, + virtual_host = VHostPath}) end)). -list_vhost_permissions(VHostPath) -> - [{Username, ConfigurePerm, WritePerm, ReadPerm} || - {Username, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_vhost( - VHostPath, match_user_vhost('_', VHostPath)))]. - -list_user_permissions(Username) -> - [{VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {_, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user( - Username, match_user_vhost(Username, '_')))]. - -list_permissions(QueryThunk) -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - #user_permission{user_vhost = #user_vhost{username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}} <- - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction(QueryThunk)]. - -match_user_vhost(Username, VHostPath) -> - fun () -> mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = '_'}, - read) - end. diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 875624ba..dee71d23 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -53,7 +53,7 @@ -spec(start/1 :: (bool() | 'auto') -> 'ok'). -spec(stop/0 :: () -> 'ok'). -spec(register/2 :: (pid(), mfa_tuple()) -> 'ok'). - + -endif. %%---------------------------------------------------------------------------- @@ -101,7 +101,7 @@ handle_call({register, Pid, HighMemMFA}, end, NewAlertees = dict:store(Pid, HighMemMFA, Alertess), {ok, ok, State#alarms{alertees = NewAlertees}}; - + handle_call(_Request, State) -> {ok, not_understood, State}. @@ -135,7 +135,7 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- start_memsup() -> - Mod = case os:type() of + Mod = case os:type() of %% memsup doesn't take account of buffers or cache when %% considering "free" memory - therefore on Linux we can %% get memory alarms very easily without any pressure @@ -143,7 +143,7 @@ start_memsup() -> %% our own simple memory monitor. %% {unix, linux} -> rabbit_memsup_linux; - + %% Start memsup programmatically rather than via the %% rabbitmq-server script. This is not quite the right %% thing to do as os_mon checks to see if memsup is diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 3018582f..2b9abb29 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -37,13 +37,13 @@ stat/1, stat_all/0, deliver/5, redeliver/2, requeue/3, ack/4]). -export([list/1, info/1, info/2, info_all/1, info_all/2]). -export([claim_queue/2]). --export([basic_get/3, basic_consume/8, basic_cancel/4]). --export([notify_sent/2, unblock/2]). --export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). +-export([basic_get/3, basic_consume/7, basic_cancel/4]). +-export([notify_sent/2]). +-export([commit_all/2, rollback_all/2, notify_down_all/2]). -export([on_node_down/1]). -import(mnesia). --import(gen_server2). +-import(gen_server). -import(lists). -import(queue). @@ -91,17 +91,15 @@ -spec(commit_all/2 :: ([pid()], txn()) -> ok_or_errors()). -spec(rollback_all/2 :: ([pid()], txn()) -> ok_or_errors()). -spec(notify_down_all/2 :: ([pid()], pid()) -> ok_or_errors()). --spec(limit_all/3 :: ([pid()], pid(), pid() | 'undefined') -> ok_or_errors()). -spec(claim_queue/2 :: (amqqueue(), pid()) -> 'ok' | 'locked'). -spec(basic_get/3 :: (amqqueue(), pid(), bool()) -> {'ok', non_neg_integer(), msg()} | 'empty'). --spec(basic_consume/8 :: - (amqqueue(), bool(), pid(), pid(), pid(), ctag(), bool(), any()) -> +-spec(basic_consume/7 :: + (amqqueue(), bool(), pid(), pid(), ctag(), bool(), any()) -> 'ok' | {'error', 'queue_owned_by_another_connection' | 'exclusive_consume_unavailable'}). -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> 'ok'). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). @@ -128,7 +126,7 @@ recover_durable_queues() -> R = rabbit_misc:execute_mnesia_transaction( fun () -> qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), + <- mnesia:table(durable_queues), node(Pid) == Node])) end), Queues = lists:map(fun start_queue_process/1, R), @@ -146,7 +144,7 @@ declare(QueueName, Durable, AutoDelete, Args) -> pid = none}), case rabbit_misc:execute_mnesia_transaction( fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of + case mnesia:wread({amqqueue, QueueName}) of [] -> ok = store_queue(Q), ok = add_default_binding(Q), Q; @@ -159,11 +157,11 @@ declare(QueueName, Durable, AutoDelete, Args) -> end. store_queue(Q = #amqqueue{durable = true}) -> - ok = mnesia:write(rabbit_durable_queue, Q, write), - ok = mnesia:write(rabbit_queue, Q, write), + ok = mnesia:write(durable_queues, Q, write), + ok = mnesia:write(Q), ok; store_queue(Q = #amqqueue{durable = false}) -> - ok = mnesia:write(rabbit_queue, Q, write), + ok = mnesia:write(Q), ok. start_queue_process(Q) -> @@ -177,7 +175,7 @@ add_default_binding(#amqqueue{name = QueueName}) -> ok. lookup(Name) -> - rabbit_misc:dirty_read({rabbit_queue, Name}). + rabbit_misc:dirty_read({amqqueue, Name}). with(Name, F, E) -> case lookup(Name) of @@ -194,16 +192,15 @@ with_or_die(Name, F) -> list(VHostPath) -> mnesia:dirty_match_object( - rabbit_queue, #amqqueue{name = rabbit_misc:r(VHostPath, queue), _ = '_'}). map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). info(#amqqueue{ pid = QPid }) -> - gen_server2:call(QPid, info). + gen_server:call(QPid, info). info(#amqqueue{ pid = QPid }, Items) -> - case gen_server2:call(QPid, {info, Items}) of + case gen_server:call(QPid, {info, Items}) of {ok, Res} -> Res; {error, Error} -> throw(Error) end. @@ -212,45 +209,45 @@ info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). -stat(#amqqueue{pid = QPid}) -> gen_server2:call(QPid, stat). +stat(#amqqueue{pid = QPid}) -> gen_server:call(QPid, stat). stat_all() -> - lists:map(fun stat/1, rabbit_misc:dirty_read_all(rabbit_queue)). + lists:map(fun stat/1, rabbit_misc:dirty_read_all(amqqueue)). delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - gen_server2:call(QPid, {delete, IfUnused, IfEmpty}). + gen_server:call(QPid, {delete, IfUnused, IfEmpty}). -purge(#amqqueue{ pid = QPid }) -> gen_server2:call(QPid, purge). +purge(#amqqueue{ pid = QPid }) -> gen_server:call(QPid, purge). deliver(_IsMandatory, true, Txn, Message, QPid) -> - gen_server2:call(QPid, {deliver_immediately, Txn, Message}); + gen_server:call(QPid, {deliver_immediately, Txn, Message}); deliver(true, _IsImmediate, Txn, Message, QPid) -> - gen_server2:call(QPid, {deliver, Txn, Message}), + gen_server:call(QPid, {deliver, Txn, Message}), true; deliver(false, _IsImmediate, Txn, Message, QPid) -> - gen_server2:cast(QPid, {deliver, Txn, Message}), + gen_server:cast(QPid, {deliver, Txn, Message}), true. redeliver(QPid, Messages) -> - gen_server2:cast(QPid, {redeliver, Messages}). + gen_server:cast(QPid, {redeliver, Messages}). requeue(QPid, MsgIds, ChPid) -> - gen_server2:cast(QPid, {requeue, MsgIds, ChPid}). + gen_server:cast(QPid, {requeue, MsgIds, ChPid}). ack(QPid, Txn, MsgIds, ChPid) -> - gen_server2:cast(QPid, {ack, Txn, MsgIds, ChPid}). + gen_server:cast(QPid, {ack, Txn, MsgIds, ChPid}). commit_all(QPids, Txn) -> Timeout = length(QPids) * ?CALL_TIMEOUT, safe_pmap_ok( fun (QPid) -> exit({queue_disappeared, QPid}) end, - fun (QPid) -> gen_server2:call(QPid, {commit, Txn}, Timeout) end, + fun (QPid) -> gen_server:call(QPid, {commit, Txn}, Timeout) end, QPids). rollback_all(QPids, Txn) -> safe_pmap_ok( fun (QPid) -> exit({queue_disappeared, QPid}) end, - fun (QPid) -> gen_server2:cast(QPid, {rollback, Txn}) end, + fun (QPid) -> gen_server:cast(QPid, {rollback, Txn}) end, QPids). notify_down_all(QPids, ChPid) -> @@ -259,50 +256,41 @@ notify_down_all(QPids, ChPid) -> %% we don't care if the queue process has terminated in the %% meantime fun (_) -> ok end, - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, Timeout) end, + fun (QPid) -> gen_server:call(QPid, {notify_down, ChPid}, Timeout) end, QPids). -limit_all(QPids, ChPid, LimiterPid) -> - safe_pmap_ok( - fun (_) -> ok end, - fun (QPid) -> gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) end, - QPids). - claim_queue(#amqqueue{pid = QPid}, ReaderPid) -> - gen_server2:call(QPid, {claim_queue, ReaderPid}). + gen_server:call(QPid, {claim_queue, ReaderPid}). basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> - gen_server2:call(QPid, {basic_get, ChPid, NoAck}). + gen_server:call(QPid, {basic_get, ChPid, NoAck}). -basic_consume(#amqqueue{pid = QPid}, NoAck, ReaderPid, ChPid, LimiterPid, +basic_consume(#amqqueue{pid = QPid}, NoAck, ReaderPid, ChPid, ConsumerTag, ExclusiveConsume, OkMsg) -> - gen_server2:call(QPid, {basic_consume, NoAck, ReaderPid, ChPid, - LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg}). + gen_server:call(QPid, {basic_consume, NoAck, ReaderPid, ChPid, + ConsumerTag, ExclusiveConsume, OkMsg}). basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> - ok = gen_server2:call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}). + ok = gen_server:call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}). notify_sent(QPid, ChPid) -> - gen_server2:cast(QPid, {notify_sent, ChPid}). - -unblock(QPid, ChPid) -> - gen_server2:cast(QPid, {unblock, ChPid}). + gen_server:cast(QPid, {notify_sent, ChPid}). internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of + case mnesia:wread({amqqueue, QueueName}) of [] -> {error, not_found}; [Q] -> ok = delete_queue(Q), - ok = mnesia:delete({rabbit_durable_queue, QueueName}), + ok = mnesia:delete({durable_queues, QueueName}), ok end end). delete_queue(#amqqueue{name = QueueName}) -> ok = rabbit_exchange:delete_bindings_for_queue(QueueName), - ok = mnesia:delete({rabbit_queue, QueueName}), + ok = mnesia:delete({amqqueue, QueueName}), ok. on_node_down(Node) -> @@ -312,7 +300,7 @@ on_node_down(Node) -> fun (Q, Acc) -> ok = delete_queue(Q), Acc end, ok, qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_queue), + <- mnesia:table(amqqueue), node(Pid) == Node])) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index c390b2b7..6282a8fb 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -33,7 +33,7 @@ -include("rabbit.hrl"). -include("rabbit_framing.hrl"). --behaviour(gen_server2). +-behaviour(gen_server). -define(UNSENT_MESSAGE_LIMIT, 100). -define(HIBERNATE_AFTER, 1000). @@ -62,10 +62,9 @@ %% These are held in our process dictionary -record(cr, {consumers, ch_pid, - limiter_pid, monitor_ref, unacked_messages, - is_limit_active, + is_overload_protection_active, unsent_message_count}). -define(INFO_KEYS, @@ -86,7 +85,7 @@ %%---------------------------------------------------------------------------- start_link(Q) -> - gen_server2:start_link(?MODULE, Q, []). + gen_server:start_link(?MODULE, Q, []). %%---------------------------------------------------------------------------- @@ -132,7 +131,7 @@ ch_record(ChPid) -> ch_pid = ChPid, monitor_ref = MonitorRef, unacked_messages = dict:new(), - is_limit_active = false, + is_overload_protection_active = false, unsent_message_count = 0}, put(Key, C), C; @@ -145,16 +144,20 @@ store_ch_record(C = #cr{ch_pid = ChPid}) -> all_ch_record() -> [C || {{ch, _}, C} <- get()]. -is_ch_blocked(#cr{unsent_message_count = Count, is_limit_active = Limited}) -> - Limited orelse Count > ?UNSENT_MESSAGE_LIMIT. - -ch_record_state_transition(OldCR, NewCR) -> - BlockedOld = is_ch_blocked(OldCR), - BlockedNew = is_ch_blocked(NewCR), - if BlockedOld andalso not(BlockedNew) -> unblock; - BlockedNew andalso not(BlockedOld) -> block; - true -> ok - end. +update_store_and_maybe_block_ch( + C = #cr{is_overload_protection_active = Active, + unsent_message_count = Count}) -> + {Result, NewActive} = + if + not(Active) and (Count > ?UNSENT_MESSAGE_LIMIT) -> + {block_ch, true}; + Active and (Count == 0) -> + {unblock_ch, false}; + true -> + {ok, Active} + end, + store_ch_record(C#cr{is_overload_protection_active = NewActive}), + Result. deliver_immediately(Message, Delivered, State = #q{q = #amqqueue{name = QName}, @@ -165,37 +168,26 @@ deliver_immediately(Message, Delivered, {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, ack_required = AckRequired}}}, RoundRobinTail} -> - C = #cr{limiter_pid = LimiterPid, - unsent_message_count = Count, + rabbit_channel:deliver( + ChPid, ConsumerTag, AckRequired, + {QName, self(), NextId, Delivered, Message}), + C = #cr{unsent_message_count = Count, unacked_messages = UAM} = ch_record(ChPid), - case not(AckRequired) orelse rabbit_limiter:can_send( - LimiterPid, self()) of - true -> - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, Delivered, Message}), - NewUAM = case AckRequired of - true -> dict:store(NextId, Message, UAM); - false -> UAM - end, - NewC = C#cr{unsent_message_count = Count + 1, - unacked_messages = NewUAM}, - store_ch_record(NewC), - NewConsumers = - case ch_record_state_transition(C, NewC) of - ok -> queue:in(QEntry, RoundRobinTail); - block -> block_consumers(ChPid, RoundRobinTail) - end, - {offered, AckRequired, State#q{round_robin = NewConsumers, - next_msg_id = NextId + 1}}; - false -> - store_ch_record(C#cr{is_limit_active = true}), - NewConsumers = block_consumers(ChPid, RoundRobinTail), - deliver_immediately(Message, Delivered, - State#q{round_robin = NewConsumers}) - end; + NewUAM = case AckRequired of + true -> dict:store(NextId, Message, UAM); + false -> UAM + end, + NewConsumers = + case update_store_and_maybe_block_ch( + C#cr{unsent_message_count = Count + 1, + unacked_messages = NewUAM}) of + ok -> queue:in(QEntry, RoundRobinTail); + block_ch -> block_consumers(ChPid, RoundRobinTail) + end, + {offered, AckRequired, State#q{round_robin = NewConsumers, + next_msg_id = NextId +1}}; {empty, _} -> - {not_offered, State} + not_offered end. attempt_delivery(none, Message, State) -> @@ -206,8 +198,8 @@ attempt_delivery(none, Message, State) -> persist_message(none, qname(State), Message), persist_delivery(qname(State), Message, false), {true, State1}; - {not_offered, State1} -> - {false, State1} + not_offered -> + {false, State} end; attempt_delivery(Txn, Message, State) -> persist_message(Txn, qname(State), Message), @@ -245,22 +237,16 @@ block_consumer(ChPid, ConsumerTag, RoundRobin) -> (CP /= ChPid) or (CT /= ConsumerTag) end, queue:to_list(RoundRobin))). -possibly_unblock(State, ChPid, Update) -> - case lookup_ch(ChPid) of - not_found -> +possibly_unblock(C = #cr{consumers = Consumers, ch_pid = ChPid}, + State = #q{round_robin = RoundRobin}) -> + case update_store_and_maybe_block_ch(C) of + ok -> State; - C -> - NewC = Update(C), - store_ch_record(NewC), - case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> NewRR = unblock_consumers(ChPid, - NewC#cr.consumers, - State#q.round_robin), - run_poke_burst(State#q{round_robin = NewRR}) - end + unblock_ch -> + run_poke_burst(State#q{round_robin = + unblock_consumers(ChPid, Consumers, RoundRobin)}) end. - + check_auto_delete(State = #q{q = #amqqueue{auto_delete = false}}) -> {continue, State}; check_auto_delete(State = #q{has_had_consumers = false}) -> @@ -315,7 +301,7 @@ handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder, {stop, normal, NewState} end end. - + cancel_holder(ChPid, ConsumerTag, {ChPid, ConsumerTag}) -> none; cancel_holder(_ChPid, _ConsumerTag, Holder) -> @@ -348,8 +334,8 @@ run_poke_burst(MessageBuffer, State) -> {offered, false, NewState} -> persist_auto_ack(qname(State), Message), run_poke_burst(BufferTail, NewState); - {not_offered, NewState} -> - NewState#q{message_buffer = MessageBuffer} + not_offered -> + State#q{message_buffer = MessageBuffer} end; {empty, _} -> State#q{message_buffer = MessageBuffer} @@ -514,8 +500,8 @@ i(messages_uncommitted, _) -> #tx{pending_messages = Pending} <- all_tx_record()]); i(messages, State) -> lists:sum([i(Item, State) || Item <- [messages_ready, - messages_unacknowledged, - messages_uncommitted]]); + messages_unacknowledged, + messages_uncommitted]]); i(acks_uncommitted, _) -> lists:sum([length(Pending) || #tx{pending_acks = Pending} <- all_tx_record()]); @@ -566,14 +552,14 @@ handle_call({deliver, Txn, Message}, _From, State) -> handle_call({commit, Txn}, From, State) -> ok = commit_work(Txn, qname(State)), %% optimisation: we reply straight away so the sender can continue - gen_server2:reply(From, ok), + gen_server:reply(From, ok), NewState = process_pending(Txn, State), erase_tx(Txn), noreply(NewState); handle_call({notify_down, ChPid}, From, State) -> %% optimisation: we reply straight away so the sender can continue - gen_server2:reply(From, ok), + gen_server:reply(From, ok), handle_ch_down(ChPid, State); handle_call({basic_get, ChPid, NoAck}, _From, @@ -600,8 +586,8 @@ handle_call({basic_get, ChPid, NoAck}, _From, reply(empty, State) end; -handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg}, +handle_call({basic_consume, NoAck, ReaderPid, ChPid, ConsumerTag, + ExclusiveConsume, OkMsg}, _From, State = #q{owner = Owner, exclusive_consumer = ExistingHolder, round_robin = RoundRobin}) -> @@ -615,13 +601,8 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, ok -> C = #cr{consumers = Consumers} = ch_record(ChPid), Consumer = #consumer{tag = ConsumerTag, ack_required = not(NoAck)}, - store_ch_record(C#cr{consumers = [Consumer | Consumers], - limiter_pid = LimiterPid}), - if Consumers == [] -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, + C1 = C#cr{consumers = [Consumer | Consumers]}, + store_ch_record(C1), State1 = State#q{has_had_consumers = true, exclusive_consumer = if @@ -641,16 +622,12 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, not_found -> ok = maybe_send_reply(ChPid, OkMsg), reply(ok, State); - C = #cr{consumers = Consumers, limiter_pid = LimiterPid} -> + C = #cr{consumers = Consumers} -> NewConsumers = lists:filter (fun (#consumer{tag = CT}) -> CT /= ConsumerTag end, Consumers), - store_ch_record(C#cr{consumers = NewConsumers}), - if NewConsumers == [] -> - ok = rabbit_limiter:unregister(LimiterPid, self()); - true -> - ok - end, + C1 = C#cr{consumers = NewConsumers}, + store_ch_record(C1), ok = maybe_send_reply(ChPid, OkMsg), case check_auto_delete( State#q{exclusive_consumer = cancel_holder(ChPid, @@ -753,33 +730,14 @@ handle_cast({requeue, MsgIds, ChPid}, State) -> [{Message, true} || Message <- Messages], State)) end; -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - handle_cast({notify_sent, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C = #cr{unsent_message_count = Count}) -> - C#cr{unsent_message_count = Count - 1} - end)); - -handle_cast({limit, ChPid, LimiterPid}, State) -> - noreply( - possibly_unblock( - State, ChPid, - fun (C = #cr{consumers = Consumers, - limiter_pid = OldLimiterPid, - is_limit_active = Limited}) -> - if Consumers =/= [] andalso OldLimiterPid == undefined -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, - NewLimited = Limited andalso LimiterPid =/= undefined, - C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)). + case lookup_ch(ChPid) of + not_found -> noreply(State); + T = #cr{unsent_message_count =Count} -> + noreply(possibly_unblock( + T#cr{unsent_message_count = Count - 1}, + State)) + end. handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> @@ -800,7 +758,7 @@ handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> handle_info(timeout, State) -> %% TODO: Once we drop support for R11B-5, we can change this to %% {noreply, State, hibernate}; - proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State]); + proc_lib:hibernate(gen_server, enter_loop, [?MODULE, [], State]); handle_info(Info, State) -> ?LOGDEBUG("Info in queue: ~p~n", [Info]), diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 192ebacd..ca2782c7 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -33,29 +33,23 @@ -include("rabbit_framing.hrl"). -include("rabbit.hrl"). --behaviour(gen_server2). - --export([start_link/5, do/2, do/3, shutdown/1]). +-export([start_link/4, do/2, do/3, shutdown/1]). -export([send_command/2, deliver/4, conserve_memory/2]). --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]). +%% callbacks +-export([init/2, handle_message/2]). --record(ch, {state, channel, reader_pid, writer_pid, limiter_pid, +-record(ch, {state, proxy_pid, reader_pid, writer_pid, transaction_id, tx_participants, next_tag, uncommitted_ack_q, unacked_message_q, username, virtual_host, most_recently_declared_queue, consumer_mapping}). --define(HIBERNATE_AFTER, 1000). - --define(MAX_PERMISSION_CACHE_SIZE, 12). - %%---------------------------------------------------------------------------- -ifdef(use_specs). --spec(start_link/5 :: - (channel_number(), pid(), pid(), username(), vhost()) -> pid()). +-spec(start_link/4 :: (pid(), pid(), username(), vhost()) -> pid()). -spec(do/2 :: (pid(), amqp_method()) -> 'ok'). -spec(do/3 :: (pid(), amqp_method(), maybe(content())) -> 'ok'). -spec(shutdown/1 :: (pid()) -> 'ok'). @@ -67,126 +61,112 @@ %%---------------------------------------------------------------------------- -start_link(Channel, ReaderPid, WriterPid, Username, VHost) -> - {ok, Pid} = gen_server2:start_link( - ?MODULE, [Channel, ReaderPid, WriterPid, - Username, VHost], []), - Pid. +start_link(ReaderPid, WriterPid, Username, VHost) -> + buffering_proxy:start_link(?MODULE, [ReaderPid, WriterPid, + Username, VHost]). do(Pid, Method) -> do(Pid, Method, none). do(Pid, Method, Content) -> - gen_server2:cast(Pid, {method, Method, Content}). + Pid ! {method, Method, Content}, + ok. shutdown(Pid) -> - gen_server2:cast(Pid, terminate). + Pid ! terminate, + ok. send_command(Pid, Msg) -> - gen_server2:cast(Pid, {command, Msg}). + Pid ! {command, Msg}, + ok. deliver(Pid, ConsumerTag, AckRequired, Msg) -> - gen_server2:cast(Pid, {deliver, ConsumerTag, AckRequired, Msg}). + Pid ! {deliver, ConsumerTag, AckRequired, Msg}, + ok. conserve_memory(Pid, Conserve) -> - gen_server2:cast(Pid, {conserve_memory, Conserve}). + Pid ! {conserve_memory, Conserve}, + ok. %%--------------------------------------------------------------------------- -init([Channel, ReaderPid, WriterPid, Username, VHost]) -> +init(ProxyPid, [ReaderPid, WriterPid, Username, VHost]) -> process_flag(trap_exit, true), link(WriterPid), + %% this is bypassing the proxy so alarms can "jump the queue" and + %% be handled promptly rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - {ok, #ch{state = starting, - channel = Channel, - reader_pid = ReaderPid, - writer_pid = WriterPid, - limiter_pid = undefined, - transaction_id = none, - tx_participants = sets:new(), - next_tag = 1, - uncommitted_ack_q = queue:new(), - unacked_message_q = queue:new(), - username = Username, - virtual_host = VHost, - most_recently_declared_queue = <<>>, - consumer_mapping = dict:new()}}. - -handle_call(_Request, _From, State) -> - noreply(State). - -handle_cast({method, Method, Content}, State) -> + #ch{state = starting, + proxy_pid = ProxyPid, + reader_pid = ReaderPid, + writer_pid = WriterPid, + transaction_id = none, + tx_participants = sets:new(), + next_tag = 1, + uncommitted_ack_q = queue:new(), + unacked_message_q = queue:new(), + username = Username, + virtual_host = VHost, + most_recently_declared_queue = <<>>, + consumer_mapping = dict:new()}. + +handle_message({method, Method, Content}, State) -> try handle_method(Method, Content, State) of {reply, Reply, NewState} -> ok = rabbit_writer:send_command(NewState#ch.writer_pid, Reply), - noreply(NewState); + NewState; {noreply, NewState} -> - noreply(NewState); + NewState; stop -> - {stop, normal, State#ch{state = terminating}} + exit(normal) catch exit:{amqp, Error, Explanation, none} -> - ok = notify_queues(internal_rollback(State)), - Reason = {amqp, Error, Explanation, - rabbit_misc:method_record_type(Method)}, - State#ch.reader_pid ! {channel_exit, State#ch.channel, Reason}, - {stop, normal, State#ch{state = terminating}}; + terminate({amqp, Error, Explanation, + rabbit_misc:method_record_type(Method)}, + State); exit:normal -> - {stop, normal, State}; + terminate(normal, State); _:Reason -> - {stop, {Reason, erlang:get_stacktrace()}, State} + terminate({Reason, erlang:get_stacktrace()}, State) end; -handle_cast(terminate, State) -> - {stop, normal, State}; +handle_message(terminate, State) -> + terminate(normal, State); -handle_cast({command, Msg}, State = #ch{writer_pid = WriterPid}) -> +handle_message({command, Msg}, State = #ch{writer_pid = WriterPid}) -> ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(State); + State; -handle_cast({deliver, ConsumerTag, AckRequired, Msg}, - State = #ch{writer_pid = WriterPid, - next_tag = DeliveryTag}) -> +handle_message({deliver, ConsumerTag, AckRequired, Msg}, + State = #ch{proxy_pid = ProxyPid, + writer_pid = WriterPid, + next_tag = DeliveryTag}) -> State1 = lock_message(AckRequired, {DeliveryTag, ConsumerTag, Msg}, State), - ok = internal_deliver(WriterPid, true, ConsumerTag, DeliveryTag, Msg), - noreply(State1#ch{next_tag = DeliveryTag + 1}); + ok = internal_deliver(WriterPid, ProxyPid, + true, ConsumerTag, DeliveryTag, Msg), + State1#ch{next_tag = DeliveryTag + 1}; -handle_cast({conserve_memory, Conserve}, State) -> - ok = clear_permission_cache(), +handle_message({conserve_memory, Conserve}, State) -> ok = rabbit_writer:send_command( State#ch.writer_pid, #'channel.flow'{active = not(Conserve)}), - noreply(State). + State; -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; +handle_message({'EXIT', _Pid, Reason}, State) -> + terminate(Reason, State); -handle_info(timeout, State) -> - ok = clear_permission_cache(), - %% TODO: Once we drop support for R11B-5, we can change this to - %% {noreply, State, hibernate}; - proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State]). +handle_message(Other, State) -> + terminate({unexpected_channel_message, Other}, State). -terminate(_Reason, #ch{writer_pid = WriterPid, limiter_pid = LimiterPid, - state = terminating}) -> - rabbit_writer:shutdown(WriterPid), - rabbit_limiter:shutdown(LimiterPid); +%%--------------------------------------------------------------------------- -terminate(Reason, State = #ch{writer_pid = WriterPid, - limiter_pid = LimiterPid}) -> +terminate(Reason, State = #ch{writer_pid = WriterPid}) -> Res = notify_queues(internal_rollback(State)), case Reason of normal -> ok = Res; _ -> ok end, rabbit_writer:shutdown(WriterPid), - rabbit_limiter:shutdown(LimiterPid). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%--------------------------------------------------------------------------- - -noreply(NewState) -> {noreply, NewState, ?HIBERNATE_AFTER}. + exit(Reason). return_ok(State, true, _Msg) -> {noreply, State}; return_ok(State, false, Msg) -> {reply, Msg, State}. @@ -210,35 +190,6 @@ return_queue_declare_ok(State, NoWait, Q) -> {reply, Reply, NewState} end. -check_resource_access(Username, Resource, Perm) -> - V = {Resource, Perm}, - Cache = case get(permission_cache) of - undefined -> []; - Other -> Other - end, - CacheTail = - case lists:member(V, Cache) of - true -> lists:delete(V, Cache); - false -> ok = rabbit_access_control:check_resource_access( - Username, Resource, Perm), - lists:sublist(Cache, ?MAX_PERMISSION_CACHE_SIZE - 1) - end, - put(permission_cache, [V | CacheTail]), - ok. - -clear_permission_cache() -> - erase(permission_cache), - ok. - -check_configure_permitted(Resource, #ch{ username = Username}) -> - check_resource_access(Username, Resource, #permission.configure). - -check_write_permitted(Resource, #ch{ username = Username}) -> - check_resource_access(Username, Resource, #permission.write). - -check_read_permitted(Resource, #ch{ username = Username}) -> - check_resource_access(Username, Resource, #permission.read). - expand_queue_name_shortcut(<<>>, #ch{ most_recently_declared_queue = <<>> }) -> rabbit_misc:protocol_error( not_allowed, "no previously declared queue", []); @@ -297,6 +248,7 @@ handle_method(_Method, _, #ch{state = starting}) -> handle_method(#'channel.close'{}, _, State = #ch{writer_pid = WriterPid}) -> ok = notify_queues(internal_rollback(State)), ok = rabbit_writer:send_command(WriterPid, #'channel.close_ok'{}), + ok = rabbit_writer:shutdown(WriterPid), stop; handle_method(#'access.request'{},_, State) -> @@ -308,7 +260,6 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, immediate = Immediate}, Content, State = #ch{ virtual_host = VHostPath}) -> ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_write_permitted(ExchangeName, State), Exchange = rabbit_exchange:lookup_or_die(ExchangeName), %% We decode the content's properties here because we're almost %% certain to want to look at delivery-mode and priority. @@ -322,7 +273,7 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, routing_key = RoutingKey, content = DecodedContent, persistent_key = PersistentKey}, - rabbit_exchange:route(Exchange, RoutingKey, DecodedContent), State)}; + rabbit_exchange:route(Exchange, RoutingKey), State)}; handle_method(#'basic.ack'{delivery_tag = DeliveryTag, multiple = Multiple}, @@ -335,10 +286,9 @@ handle_method(#'basic.ack'{delivery_tag = DeliveryTag, true -> ok end, {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - Participants = ack(TxnKey, Acked), + Participants = ack(State#ch.proxy_pid, TxnKey, Acked), {noreply, case TxnKey of - none -> ok = notify_limiter(State#ch.limiter_pid, Acked), - State#ch{unacked_message_q = Remaining}; + none -> State#ch{unacked_message_q = Remaining}; _ -> NewUAQ = queue:join(State#ch.uncommitted_ack_q, Acked), add_tx_participants( @@ -349,13 +299,12 @@ handle_method(#'basic.ack'{delivery_tag = DeliveryTag, handle_method(#'basic.get'{queue = QueueNameBin, no_ack = NoAck}, - _, State = #ch{ writer_pid = WriterPid, + _, State = #ch{ proxy_pid = ProxyPid, writer_pid = WriterPid, next_tag = DeliveryTag }) -> QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), case rabbit_amqqueue:with_or_die( QueueName, - fun (Q) -> rabbit_amqqueue:basic_get(Q, self(), NoAck) end) of + fun (Q) -> rabbit_amqqueue:basic_get(Q, ProxyPid, NoAck) end) of {ok, MessageCount, Msg = {_QName, _QPid, _MsgId, Redelivered, #basic_message{exchange_name = ExchangeName, @@ -381,13 +330,12 @@ handle_method(#'basic.consume'{queue = QueueNameBin, no_ack = NoAck, exclusive = ExclusiveConsume, nowait = NoWait}, - _, State = #ch{ reader_pid = ReaderPid, - limiter_pid = LimiterPid, + _, State = #ch{ proxy_pid = ProxyPid, + reader_pid = ReaderPid, consumer_mapping = ConsumerMapping }) -> case dict:find(ConsumerTag, ConsumerMapping) of error -> QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), ActualConsumerTag = case ConsumerTag of <<>> -> rabbit_misc:binstring_guid("amq.ctag"); @@ -401,7 +349,7 @@ handle_method(#'basic.consume'{queue = QueueNameBin, QueueName, fun (Q) -> rabbit_amqqueue:basic_consume( - Q, NoAck, ReaderPid, self(), LimiterPid, + Q, NoAck, ReaderPid, ProxyPid, ActualConsumerTag, ExclusiveConsume, ok_msg(NoWait, #'basic.consume_ok'{ consumer_tag = ActualConsumerTag})) @@ -432,7 +380,8 @@ handle_method(#'basic.consume'{queue = QueueNameBin, handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, nowait = NoWait}, - _, State = #ch{consumer_mapping = ConsumerMapping }) -> + _, State = #ch{ proxy_pid = ProxyPid, + consumer_mapping = ConsumerMapping }) -> OkMsg = #'basic.cancel_ok'{consumer_tag = ConsumerTag}, case dict:find(ConsumerTag, ConsumerMapping) of error -> @@ -453,7 +402,7 @@ handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, %% cancel_ok ourselves it might overtake a %% message sent previously by the queue. rabbit_amqqueue:basic_cancel( - Q, self(), ConsumerTag, + Q, ProxyPid, ConsumerTag, ok_msg(NoWait, #'basic.cancel_ok'{ consumer_tag = ConsumerTag})) end) of @@ -465,34 +414,13 @@ handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, end end; -handle_method(#'basic.qos'{global = true}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "global=true", []); - -handle_method(#'basic.qos'{prefetch_size = Size}, _, _State) when Size /= 0 -> - rabbit_misc:protocol_error(not_implemented, - "prefetch_size!=0 (~w)", [Size]); - -handle_method(#'basic.qos'{prefetch_count = PrefetchCount}, - _, State = #ch{ limiter_pid = LimiterPid }) -> - NewLimiterPid = case {LimiterPid, PrefetchCount} of - {undefined, 0} -> - undefined; - {undefined, _} -> - LPid = rabbit_limiter:start_link(self()), - ok = limit_queues(LPid, State), - LPid; - {_, 0} -> - ok = rabbit_limiter:shutdown(LimiterPid), - ok = limit_queues(undefined, State), - undefined; - {_, _} -> - LimiterPid - end, - ok = rabbit_limiter:limit(NewLimiterPid, PrefetchCount), - {reply, #'basic.qos_ok'{}, State#ch{limiter_pid = NewLimiterPid}}; +handle_method(#'basic.qos'{}, _, State) -> + %% FIXME: Need to implement QOS + {reply, #'basic.qos_ok'{}, State}; handle_method(#'basic.recover'{requeue = true}, _, State = #ch{ transaction_id = none, + proxy_pid = ProxyPid, unacked_message_q = UAMQ }) -> ok = fold_per_queue( fun (QPid, MsgIds, ok) -> @@ -501,13 +429,14 @@ handle_method(#'basic.recover'{requeue = true}, %% order. To keep it happy we reverse the id list %% since we are given them in reverse order. rabbit_amqqueue:requeue( - QPid, lists:reverse(MsgIds), self()) + QPid, lists:reverse(MsgIds), ProxyPid) end, ok, UAMQ), %% No answer required, apparently! {noreply, State#ch{unacked_message_q = queue:new()}}; handle_method(#'basic.recover'{requeue = false}, _, State = #ch{ transaction_id = none, + proxy_pid = ProxyPid, writer_pid = WriterPid, unacked_message_q = UAMQ }) -> lists:foreach( @@ -525,7 +454,8 @@ handle_method(#'basic.recover'{requeue = false}, %% %% FIXME: should we allocate a fresh DeliveryTag? ok = internal_deliver( - WriterPid, false, ConsumerTag, DeliveryTag, + WriterPid, ProxyPid, + false, ConsumerTag, DeliveryTag, {QName, QPid, MsgId, true, Message}) end, queue:to_list(UAMQ)), %% No answer required, apparently! @@ -546,7 +476,6 @@ handle_method(#'exchange.declare'{exchange = ExchangeNameBin, _, State = #ch{ virtual_host = VHostPath }) -> CheckedType = rabbit_exchange:check_type(TypeNameBin), ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), X = case rabbit_exchange:lookup(ExchangeName) of {ok, FoundX} -> FoundX; {error, not_found} -> @@ -566,7 +495,6 @@ handle_method(#'exchange.declare'{exchange = ExchangeNameBin, nowait = NoWait}, _, State = #ch{ virtual_host = VHostPath }) -> ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), X = rabbit_exchange:lookup_or_die(ExchangeName), ok = rabbit_exchange:assert_type(X, rabbit_exchange:check_type(TypeNameBin)), return_ok(State, NoWait, #'exchange.declare_ok'{}); @@ -576,7 +504,6 @@ handle_method(#'exchange.delete'{exchange = ExchangeNameBin, nowait = NoWait}, _, State = #ch { virtual_host = VHostPath }) -> ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), case rabbit_exchange:delete(ExchangeName, IfUnused) of {error, not_found} -> rabbit_misc:protocol_error( @@ -627,12 +554,9 @@ handle_method(#'queue.declare'{queue = QueueNameBin, Other -> check_name('queue', Other) end, QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), - check_configure_permitted(QueueName, State), Finish(rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, Args)); - Other = #amqqueue{name = QueueName} -> - check_configure_permitted(QueueName, State), - Other + Other -> Other end, return_queue_declare_ok(State, NoWait, Q); @@ -641,7 +565,6 @@ handle_method(#'queue.declare'{queue = QueueNameBin, nowait = NoWait}, _, State = #ch{ virtual_host = VHostPath }) -> QueueName = rabbit_misc:r(VHostPath, queue, QueueNameBin), - check_configure_permitted(QueueName, State), Q = rabbit_amqqueue:with_or_die(QueueName, fun (Q) -> Q end), return_queue_declare_ok(State, NoWait, Q); @@ -652,7 +575,6 @@ handle_method(#'queue.delete'{queue = QueueNameBin, }, _, State) -> QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_configure_permitted(QueueName, State), case rabbit_amqqueue:with_or_die( QueueName, fun (Q) -> rabbit_amqqueue:delete(Q, IfUnused, IfEmpty) end) of @@ -689,7 +611,6 @@ handle_method(#'queue.purge'{queue = QueueNameBin, nowait = NoWait}, _, State) -> QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), {ok, PurgedMessageCount} = rabbit_amqqueue:with_or_die( QueueName, fun (Q) -> rabbit_amqqueue:purge(Q) end), @@ -739,11 +660,9 @@ binding_action(Fun, ExchangeNameBin, QueueNameBin, RoutingKey, Arguments, %% FIXME: don't allow binding to internal exchanges - %% including the one named "" ! QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_write_permitted(QueueName, State), ActualRoutingKey = expand_routing_key_shortcut(QueueNameBin, RoutingKey, State), ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_read_permitted(ExchangeName, State), case Fun(ExchangeName, QueueName, ActualRoutingKey, Arguments) of {error, queue_not_found} -> rabbit_misc:protocol_error( @@ -825,10 +744,10 @@ add_tx_participants(MoreP, State = #ch{tx_participants = Participants}) -> State#ch{tx_participants = sets:union(Participants, sets:from_list(MoreP))}. -ack(TxnKey, UAQ) -> +ack(ProxyPid, TxnKey, UAQ) -> fold_per_queue( fun (QPid, MsgIds, L) -> - ok = rabbit_amqqueue:ack(QPid, TxnKey, MsgIds, self()), + ok = rabbit_amqqueue:ack(QPid, TxnKey, MsgIds, ProxyPid), [QPid | L] end, [], UAQ). @@ -843,9 +762,7 @@ internal_commit(State = #ch{transaction_id = TxnKey, tx_participants = Participants}) -> case rabbit_amqqueue:commit_all(sets:to_list(Participants), TxnKey) of - ok -> ok = notify_limiter(State#ch.limiter_pid, - State#ch.uncommitted_ack_q), - new_tx(State); + ok -> new_tx(State); {error, Errors} -> rabbit_misc:protocol_error( internal_error, "commit failed: ~w", [Errors]) end. @@ -882,37 +799,19 @@ fold_per_queue(F, Acc0, UAQ) -> dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, Acc0, D). -notify_queues(#ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:notify_down_all(consumer_queues(Consumers), self()). - -limit_queues(LPid, #ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:limit_all(consumer_queues(Consumers), self(), LPid). - -consumer_queues(Consumers) -> - [QPid || QueueName <- - sets:to_list( - dict:fold(fun (_ConsumerTag, QueueName, S) -> - sets:add_element(QueueName, S) - end, sets:new(), Consumers)), - case rabbit_amqqueue:lookup(QueueName) of - {ok, Q} -> QPid = Q#amqqueue.pid, true; - %% queue has been deleted in the meantime - {error, not_found} -> QPid = none, false - end]. - -%% tell the limiter about the number of acks that have been received -%% for messages delivered to subscribed consumers, but not acks for -%% messages sent in a response to a basic.get (identified by their -%% 'none' consumer tag) -notify_limiter(undefined, _Acked) -> - ok; -notify_limiter(LimiterPid, Acked) -> - case lists:foldl(fun ({_, none, _}, Acc) -> Acc; - ({_, _, _}, Acc) -> Acc + 1 - end, 0, queue:to_list(Acked)) of - 0 -> ok; - Count -> rabbit_limiter:ack(LimiterPid, Count) - end. +notify_queues(#ch{proxy_pid = ProxyPid, consumer_mapping = Consumers}) -> + rabbit_amqqueue:notify_down_all( + [QPid || QueueName <- + sets:to_list( + dict:fold(fun (_ConsumerTag, QueueName, S) -> + sets:add_element(QueueName, S) + end, sets:new(), Consumers)), + case rabbit_amqqueue:lookup(QueueName) of + {ok, Q} -> QPid = Q#amqqueue.pid, true; + %% queue has been deleted in the meantime + {error, not_found} -> QPid = none, false + end], + ProxyPid). is_message_persistent(#content{properties = #'P_basic'{ delivery_mode = Mode}}) -> @@ -920,8 +819,7 @@ is_message_persistent(#content{properties = #'P_basic'{ 1 -> false; 2 -> true; undefined -> false; - Other -> rabbit_log:warning("Unknown delivery mode ~p - " - "treating as 1, non-persistent~n", + Other -> rabbit_log:warning("Unknown delivery mode ~p - treating as 1, non-persistent~n", [Other]), false end. @@ -931,7 +829,7 @@ lock_message(true, MsgStruct, State = #ch{unacked_message_q = UAMQ}) -> lock_message(false, _MsgStruct, State) -> State. -internal_deliver(WriterPid, Notify, ConsumerTag, DeliveryTag, +internal_deliver(WriterPid, ChPid, Notify, ConsumerTag, DeliveryTag, {_QName, QPid, _MsgId, Redelivered, #basic_message{exchange_name = ExchangeName, routing_key = RoutingKey, @@ -943,6 +841,6 @@ internal_deliver(WriterPid, Notify, ConsumerTag, DeliveryTag, routing_key = RoutingKey}, ok = case Notify of true -> rabbit_writer:send_command_and_notify( - WriterPid, QPid, self(), M, Content); + WriterPid, QPid, ChPid, M, Content); false -> rabbit_writer:send_command(WriterPid, M, Content) end. diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index e6717d68..cbc11b40 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -114,10 +114,10 @@ Available commands: delete_vhost list_vhosts - set_permissions [-p ] - clear_permissions [-p ] - list_permissions [-p ] - list_user_permissions + map_user_vhost + unmap_user_vhost + list_user_vhosts + list_vhost_users list_queues [-p ] [ ...] list_exchanges [-p ] [ ...] @@ -223,14 +223,25 @@ action(list_vhosts, Node, [], Inform) -> Inform("Listing vhosts", []), display_list(call(Node, {rabbit_access_control, list_vhosts, []})); -action(list_user_permissions, Node, Args = [_Username], Inform) -> - Inform("Listing permissions for user ~p", Args), - display_list(call(Node, {rabbit_access_control, list_user_permissions, - Args})); +action(map_user_vhost, Node, Args = [_Username, _VHostPath], Inform) -> + Inform("Mapping user ~p to vhost ~p", Args), + call(Node, {rabbit_access_control, map_user_vhost, Args}); + +action(unmap_user_vhost, Node, Args = [_Username, _VHostPath], Inform) -> + Inform("Unmapping user ~p from vhost ~p", Args), + call(Node, {rabbit_access_control, unmap_user_vhost, Args}); + +action(list_user_vhosts, Node, Args = [_Username], Inform) -> + Inform("Listing vhosts for user ~p", Args), + display_list(call(Node, {rabbit_access_control, list_user_vhosts, Args})); + +action(list_vhost_users, Node, Args = [_VHostPath], Inform) -> + Inform("Listing users for vhosts ~p", Args), + display_list(call(Node, {rabbit_access_control, list_vhost_users, Args})); action(list_queues, Node, Args, Inform) -> Inform("Listing queues", []), - {VHostArg, RemainingArgs} = parse_vhost_flag_bin(Args), + {VHostArg, RemainingArgs} = parse_vhost_flag(Args), ArgAtoms = list_replace(node, pid, default_if_empty(RemainingArgs, [name, messages])), display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, @@ -239,7 +250,7 @@ action(list_queues, Node, Args, Inform) -> action(list_exchanges, Node, Args, Inform) -> Inform("Listing exchanges", []), - {VHostArg, RemainingArgs} = parse_vhost_flag_bin(Args), + {VHostArg, RemainingArgs} = parse_vhost_flag(Args), ArgAtoms = default_if_empty(RemainingArgs, [name, type]), display_info_list(rpc_call(Node, rabbit_exchange, info_all, [VHostArg, ArgAtoms]), @@ -247,7 +258,7 @@ action(list_exchanges, Node, Args, Inform) -> action(list_bindings, Node, Args, Inform) -> Inform("Listing bindings", []), - {VHostArg, _} = parse_vhost_flag_bin(Args), + {VHostArg, _} = parse_vhost_flag(Args), InfoKeys = [exchange_name, routing_key, queue_name, args], display_info_list( [lists:zip(InfoKeys, tuple_to_list(X)) || @@ -261,37 +272,15 @@ action(list_connections, Node, Args, Inform) -> default_if_empty(Args, [user, peer_address, peer_port])), display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, [ArgAtoms]), - ArgAtoms); - -action(Command, Node, Args, Inform) -> - {VHost, RemainingArgs} = parse_vhost_flag(Args), - action(Command, Node, VHost, RemainingArgs, Inform). - -action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_access_control, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, VHost, [Username], Inform) -> - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_access_control, clear_permissions, [Username, VHost]}); - -action(list_permissions, Node, VHost, [], Inform) -> - Inform("Listing permissions in vhost ~p", [VHost]), - display_list(call(Node, {rabbit_access_control, list_vhost_permissions, - [VHost]})). + ArgAtoms). parse_vhost_flag(Args) when is_list(Args) -> - case Args of - ["-p", VHost | RemainingArgs] -> - {VHost, RemainingArgs}; - RemainingArgs -> - {"/", RemainingArgs} - end. - -parse_vhost_flag_bin(Args) -> - {VHost, RemainingArgs} = parse_vhost_flag(Args), - {list_to_binary(VHost), RemainingArgs}. + case Args of + ["-p", VHost | RemainingArgs] -> + {list_to_binary(VHost), RemainingArgs}; + RemainingArgs -> + {<<"/">>, RemainingArgs} + end. default_if_empty(List, Default) when is_list(List) -> if List == [] -> @@ -301,17 +290,21 @@ default_if_empty(List, Default) when is_list(List) -> end. display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach(fun (Result) -> display_row([format_info_item(Result, X) || - X <- InfoItemKeys]) - end, Results), + lists:foreach( + fun (Result) -> + io:fwrite( + lists:flatten( + rabbit_misc:intersperse( + "\t", + [format_info_item(Result, X) || X <- InfoItemKeys]))), + io:nl() + end, + Results), ok; + display_info_list(Other, _) -> Other. -display_row(Row) -> - io:fwrite(lists:flatten(rabbit_misc:intersperse("\t", Row))), - io:nl(). - format_info_item(Items, Key) -> {value, Info = {Key, Value}} = lists:keysearch(Key, 1, Items), case Info of @@ -328,10 +321,8 @@ format_info_item(Items, Key) -> end. display_list(L) when is_list(L) -> - lists:foreach(fun (I) when is_binary(I) -> - io:format("~s~n", [url_encode(I)]); - (I) when is_tuple(I) -> - display_row([url_encode(V) || V <- tuple_to_list(I)]) + lists:foreach(fun (I) -> + io:format("~s~n", [binary_to_list(I)]) end, lists:sort(L)), ok; diff --git a/src/rabbit_error_logger_file_h.erl b/src/rabbit_error_logger_file_h.erl index 183b6984..9a9220b5 100644 --- a/src/rabbit_error_logger_file_h.erl +++ b/src/rabbit_error_logger_file_h.erl @@ -46,7 +46,7 @@ init({{File, Suffix}, []}) -> case rabbit_misc:append_file(File, Suffix) of ok -> ok; {error, Error} -> - rabbit_log:error("Failed to append contents of " + rabbit_log:error("Failed to append contents of " ++ "log file '~s' to '~s':~n~p~n", [File, [File, Suffix], Error]) end, diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 19efd9fc..925c335c 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -37,11 +37,11 @@ -export([recover/0, declare/5, lookup/1, lookup_or_die/1, list/1, info/1, info/2, info_all/1, info_all/2, simple_publish/6, simple_publish/3, - route/3]). + route/2]). -export([add_binding/4, delete_binding/4, list_bindings/1]). -export([delete/2]). -export([delete_bindings_for_queue/1]). --export([check_type/1, assert_type/2, topic_matches/2, headers_match/2]). +-export([check_type/1, assert_type/2, topic_matches/2]). %% EXTENDED API -export([list_exchange_bindings/1]). @@ -77,7 +77,7 @@ (bool(), bool(), exchange_name(), routing_key(), binary(), binary()) -> publish_res()). -spec(simple_publish/3 :: (bool(), bool(), message()) -> publish_res()). --spec(route/3 :: (exchange(), routing_key(), decoded_content()) -> [pid()]). +-spec(route/2 :: (exchange(), routing_key()) -> [pid()]). -spec(add_binding/4 :: (exchange_name(), queue_name(), routing_key(), amqp_table()) -> bind_res() | {'error', 'durability_settings_incompatible'}). @@ -88,7 +88,6 @@ [{exchange_name(), queue_name(), routing_key(), amqp_table()}]). -spec(delete_bindings_for_queue/1 :: (queue_name()) -> 'ok'). -spec(topic_matches/2 :: (binary(), binary()) -> bool()). --spec(headers_match/2 :: (amqp_table(), amqp_table()) -> bool()). -spec(delete/2 :: (exchange_name(), bool()) -> 'ok' | not_found() | {'error', 'in_use'}). -spec(list_queue_bindings/1 :: (queue_name()) -> @@ -107,18 +106,16 @@ recover() -> fun () -> mnesia:foldl( fun (Exchange, Acc) -> - ok = mnesia:write(rabbit_exchange, Exchange, write), + ok = mnesia:write(Exchange), Acc - end, ok, rabbit_durable_exchange), + end, ok, durable_exchanges), mnesia:foldl( fun (Route, Acc) -> {_, ReverseRoute} = route_with_reverse(Route), - ok = mnesia:write(rabbit_route, - Route, write), - ok = mnesia:write(rabbit_reverse_route, - ReverseRoute, write), + ok = mnesia:write(Route), + ok = mnesia:write(ReverseRoute), Acc - end, ok, rabbit_durable_route), + end, ok, durable_routes), ok end). @@ -130,11 +127,11 @@ declare(ExchangeName, Type, Durable, AutoDelete, Args) -> arguments = Args}, rabbit_misc:execute_mnesia_transaction( fun () -> - case mnesia:wread({rabbit_exchange, ExchangeName}) of - [] -> ok = mnesia:write(rabbit_exchange, Exchange, write), + case mnesia:wread({exchange, ExchangeName}) of + [] -> ok = mnesia:write(Exchange), if Durable -> - ok = mnesia:write(rabbit_durable_exchange, - Exchange, write); + ok = mnesia:write( + durable_exchanges, Exchange, write); true -> ok end, Exchange; @@ -148,8 +145,6 @@ check_type(<<"direct">>) -> direct; check_type(<<"topic">>) -> topic; -check_type(<<"headers">>) -> - headers; check_type(T) -> rabbit_misc:protocol_error( command_invalid, "invalid exchange type '~s'", [T]). @@ -163,7 +158,7 @@ assert_type(#exchange{ name = Name, type = ActualType }, RequiredType) -> [rabbit_misc:rs(Name), ActualType, RequiredType]). lookup(Name) -> - rabbit_misc:dirty_read({rabbit_exchange, Name}). + rabbit_misc:dirty_read({exchange, Name}). lookup_or_die(Name) -> case lookup(Name) of @@ -175,7 +170,6 @@ lookup_or_die(Name) -> list(VHostPath) -> mnesia:dirty_match_object( - rabbit_exchange, #exchange{name = rabbit_misc:r(VHostPath, exchange), _ = '_'}). map(VHostPath, F) -> @@ -217,80 +211,64 @@ simple_publish(Mandatory, Immediate, ExchangeName, RoutingKeyBin, %% Usable by Erlang code that wants to publish messages. simple_publish(Mandatory, Immediate, Message = #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = Content}) -> + routing_key = RoutingKey}) -> case lookup(ExchangeName) of {ok, Exchange} -> - QPids = route(Exchange, RoutingKey, Content), + QPids = route(Exchange, RoutingKey), rabbit_router:deliver(QPids, Mandatory, Immediate, none, Message); {error, Error} -> {error, Error} end. -sort_arguments(Arguments) -> - lists:keysort(1, Arguments). - %% return the list of qpids to which a message with a given routing %% key, sent to a particular exchange, should be delivered. %% %% The function ensures that a qpid appears in the return list exactly %% as many times as a message should be delivered to it. With the %% current exchange types that is at most once. -route(X = #exchange{type = topic}, RoutingKey, _Content) -> - match_bindings(X, fun (#binding{key = BindingKey}) -> - topic_matches(BindingKey, RoutingKey) - end); - -route(X = #exchange{type = headers}, _RoutingKey, Content) -> - Headers = case (Content#content.properties)#'P_basic'.headers of - undefined -> []; - H -> sort_arguments(H) - end, - match_bindings(X, fun (#binding{args = Spec}) -> - headers_match(Spec, Headers) - end); - -route(X = #exchange{type = fanout}, _RoutingKey, _Content) -> - match_routing_key(X, '_'); - -route(X = #exchange{type = direct}, RoutingKey, _Content) -> - match_routing_key(X, RoutingKey). - +%% %% TODO: Maybe this should be handled by a cursor instead. -%% TODO: This causes a full scan for each entry with the same exchange -match_bindings(#exchange{name = Name}, Match) -> - Query = qlc:q([QName || #route{binding = Binding = #binding{ - exchange_name = ExchangeName, - queue_name = QName}} <- - mnesia:table(rabbit_route), - ExchangeName == Name, - Match(Binding)]), +route(#exchange{name = Name, type = topic}, RoutingKey) -> + Query = qlc:q([QName || + #route{binding = #binding{ + exchange_name = ExchangeName, + queue_name = QName, + key = BindingKey}} <- mnesia:table(route), + ExchangeName == Name, + %% TODO: This causes a full scan for each entry + %% with the same exchange (see bug 19336) + topic_matches(BindingKey, RoutingKey)]), lookup_qpids( try mnesia:async_dirty(fun qlc:e/1, [Query]) catch exit:{aborted, {badarg, _}} -> %% work around OTP-7025, which was fixed in R12B-1, by %% falling back on a less efficient method - [QName || #route{binding = Binding = #binding{ - queue_name = QName}} <- + [QName || #route{binding = #binding{queue_name = QName, + key = BindingKey}} <- mnesia:dirty_match_object( - rabbit_route, #route{binding = #binding{exchange_name = Name, _ = '_'}}), - Match(Binding)] - end). + topic_matches(BindingKey, RoutingKey)] + end); + +route(X = #exchange{type = fanout}, _) -> + route_internal(X, '_'); -match_routing_key(#exchange{name = Name}, RoutingKey) -> +route(X = #exchange{type = direct}, RoutingKey) -> + route_internal(X, RoutingKey). + +route_internal(#exchange{name = Name}, RoutingKey) -> MatchHead = #route{binding = #binding{exchange_name = Name, queue_name = '$1', key = RoutingKey, _ = '_'}}, - lookup_qpids(mnesia:dirty_select(rabbit_route, [{MatchHead, [], ['$1']}])). + lookup_qpids(mnesia:dirty_select(route, [{MatchHead, [], ['$1']}])). lookup_qpids(Queues) -> sets:fold( fun(Key, Acc) -> - case mnesia:dirty_read({rabbit_queue, Key}) of + case mnesia:dirty_read({amqqueue, Key}) of [#amqqueue{pid = QPid}] -> [QPid | Acc]; [] -> Acc end @@ -301,37 +279,33 @@ lookup_qpids(Queues) -> %% to be implemented for 0.91 ? delete_bindings_for_exchange(ExchangeName) -> - [begin - ok = mnesia:delete_object(rabbit_reverse_route, - reverse_route(Route), write), - ok = delete_forward_routes(Route) - end || Route <- mnesia:match_object( - rabbit_route, - #route{binding = #binding{exchange_name = ExchangeName, - _ = '_'}}, - write)], - ok. + indexed_delete( + #route{binding = #binding{exchange_name = ExchangeName, + _ = '_'}}, + fun delete_forward_routes/1, fun mnesia:delete_object/1). delete_bindings_for_queue(QueueName) -> Exchanges = exchanges_for_queue(QueueName), + indexed_delete( + reverse_route(#route{binding = #binding{queue_name = QueueName, + _ = '_'}}), + fun mnesia:delete_object/1, fun delete_forward_routes/1), [begin - ok = delete_forward_routes(reverse_route(Route)), - ok = mnesia:delete_object(rabbit_reverse_route, Route, write) - end || Route <- mnesia:match_object( - rabbit_reverse_route, - reverse_route( - #route{binding = #binding{queue_name = QueueName, - _ = '_'}}), - write)], - [begin - [X] = mnesia:read({rabbit_exchange, ExchangeName}), + [X] = mnesia:read({exchange, ExchangeName}), ok = maybe_auto_delete(X) end || ExchangeName <- Exchanges], ok. +indexed_delete(Match, ForwardsDeleteFun, ReverseDeleteFun) -> + [begin + ok = ReverseDeleteFun(reverse_route(Route)), + ok = ForwardsDeleteFun(Route) + end || Route <- mnesia:match_object(Match)], + ok. + delete_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write), - ok = mnesia:delete_object(rabbit_durable_route, Route, write). + ok = mnesia:delete_object(Route), + ok = mnesia:delete_object(durable_routes, Route, write). exchanges_for_queue(QueueName) -> MatchHead = reverse_route( @@ -340,18 +314,17 @@ exchanges_for_queue(QueueName) -> _ = '_'}}), sets:to_list( sets:from_list( - mnesia:select(rabbit_reverse_route, [{MatchHead, [], ['$1']}]))). + mnesia:select(reverse_route, [{MatchHead, [], ['$1']}]))). has_bindings(ExchangeName) -> MatchHead = #route{binding = #binding{exchange_name = ExchangeName, _ = '_'}}, try - continue(mnesia:select(rabbit_route, [{MatchHead, [], ['$_']}], - 1, read)) + continue(mnesia:select(route, [{MatchHead, [], ['$_']}], 1, read)) catch exit:{aborted, {badarg, _}} -> %% work around OTP-7025, which was fixed in R12B-1, by %% falling back on a less efficient method - case mnesia:match_object(rabbit_route, MatchHead, read) of + case mnesia:match_object(MatchHead) of [] -> false; [_|_] -> true end @@ -363,7 +336,7 @@ continue({[], Continuation}) -> continue(mnesia:select(Continuation)). call_with_exchange(Exchange, Fun) -> rabbit_misc:execute_mnesia_transaction( - fun() -> case mnesia:read({rabbit_exchange, Exchange}) of + fun() -> case mnesia:read({exchange, Exchange}) of [] -> {error, exchange_not_found}; [X] -> Fun(X) end @@ -372,7 +345,7 @@ call_with_exchange(Exchange, Fun) -> call_with_exchange_and_queue(Exchange, Queue, Fun) -> call_with_exchange( Exchange, - fun(X) -> case mnesia:read({rabbit_queue, Queue}) of + fun(X) -> case mnesia:read({amqqueue, Queue}) of [] -> {error, queue_not_found}; [Q] -> Fun(X, Q) end @@ -404,15 +377,13 @@ sync_binding(ExchangeName, QueueName, RoutingKey, Arguments, Durable, Fun) -> Binding = #binding{exchange_name = ExchangeName, queue_name = QueueName, key = RoutingKey, - args = sort_arguments(Arguments)}, + args = Arguments}, ok = case Durable of - true -> Fun(rabbit_durable_route, - #route{binding = Binding}, write); + true -> Fun(durable_routes, #route{binding = Binding}, write); false -> ok end, - {Route, ReverseRoute} = route_with_reverse(Binding), - ok = Fun(rabbit_route, Route, write), - ok = Fun(rabbit_reverse_route, ReverseRoute, write), + [ok, ok] = [Fun(element(1, R), R, write) || + R <- tuple_to_list(route_with_reverse(Binding))], ok. list_bindings(VHostPath) -> @@ -423,7 +394,6 @@ list_bindings(VHostPath) -> queue_name = QueueName, args = Arguments}} <- mnesia:dirty_match_object( - rabbit_route, #route{binding = #binding{ exchange_name = rabbit_misc:r(VHostPath, exchange), _ = '_'}, @@ -459,67 +429,6 @@ reverse_binding(#binding{exchange_name = Exchange, key = Key, args = Args}. -default_headers_match_kind() -> all. - -parse_x_match(<<"all">>) -> all; -parse_x_match(<<"any">>) -> any; -parse_x_match(Other) -> - rabbit_log:warning("Invalid x-match field value ~p; expected all or any", - [Other]), - default_headers_match_kind(). - -%% Horrendous matching algorithm. Depends for its merge-like -%% (linear-time) behaviour on the lists:keysort (sort_arguments) that -%% route/3 and sync_binding/6 do. -%% -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% In other words: REQUIRES BOTH PATTERN AND DATA TO BE SORTED ASCENDING BY KEY. -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% -headers_match(Pattern, Data) -> - MatchKind = case lists:keysearch(<<"x-match">>, 1, Pattern) of - {value, {_, longstr, MK}} -> parse_x_match(MK); - {value, {_, Type, MK}} -> - rabbit_log:warning("Invalid x-match field type ~p " - "(value ~p); expected longstr", - [Type, MK]), - default_headers_match_kind(); - _ -> default_headers_match_kind() - end, - headers_match(Pattern, Data, true, false, MatchKind). - -headers_match([], _Data, AllMatch, _AnyMatch, all) -> - AllMatch; -headers_match([], _Data, _AllMatch, AnyMatch, any) -> - AnyMatch; -headers_match([{<<"x-", _/binary>>, _PT, _PV} | PRest], Data, - AllMatch, AnyMatch, MatchKind) -> - headers_match(PRest, Data, AllMatch, AnyMatch, MatchKind); -headers_match(_Pattern, [], _AllMatch, AnyMatch, MatchKind) -> - headers_match([], [], false, AnyMatch, MatchKind); -headers_match(Pattern = [{PK, _PT, _PV} | _], [{DK, _DT, _DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK > DK -> - headers_match(Pattern, DRest, AllMatch, AnyMatch, MatchKind); -headers_match([{PK, _PT, _PV} | PRest], Data = [{DK, _DT, _DV} | _], - _AllMatch, AnyMatch, MatchKind) when PK < DK -> - headers_match(PRest, Data, false, AnyMatch, MatchKind); -headers_match([{PK, PT, PV} | PRest], [{DK, DT, DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK == DK -> - {AllMatch1, AnyMatch1} = - if - %% It's not properly specified, but a "no value" in a - %% pattern field is supposed to mean simple presence of - %% the corresponding data field. I've interpreted that to - %% mean a type of "void" for the pattern field. - PT == void -> {AllMatch, true}; - %% Similarly, it's not specified, but I assume that a - %% mismatched type causes a mismatched value. - PT =/= DT -> {false, AnyMatch}; - PV == DV -> {AllMatch, true}; - true -> {false, AnyMatch} - end, - headers_match(PRest, DRest, AllMatch1, AnyMatch1, MatchKind). - split_topic_key(Key) -> {ok, KeySplit} = regexp:split(binary_to_list(Key), "\\."), KeySplit. @@ -566,8 +475,8 @@ conditional_delete(Exchange = #exchange{name = ExchangeName}) -> unconditional_delete(#exchange{name = ExchangeName}) -> ok = delete_bindings_for_exchange(ExchangeName), - ok = mnesia:delete({rabbit_durable_exchange, ExchangeName}), - ok = mnesia:delete({rabbit_exchange, ExchangeName}). + ok = mnesia:delete({durable_exchanges, ExchangeName}), + ok = mnesia:delete({exchange, ExchangeName}). %%---------------------------------------------------------------------------- %% EXTENDED API @@ -583,7 +492,7 @@ list_exchange_bindings(ExchangeName) -> #route{binding = #binding{queue_name = QueueName, key = RoutingKey, args = Arguments}} - <- mnesia:dirty_match_object(rabbit_route, Route)]. + <- mnesia:dirty_match_object(Route)]. % Refactoring is left as an exercise for the reader list_queue_bindings(QueueName) -> @@ -593,4 +502,4 @@ list_queue_bindings(QueueName) -> #route{binding = #binding{exchange_name = ExchangeName, key = RoutingKey, args = Arguments}} - <- mnesia:dirty_match_object(rabbit_route, Route)]. + <- mnesia:dirty_match_object(Route)]. diff --git a/src/rabbit_framing_channel.erl b/src/rabbit_framing_channel.erl index 5c447792..060bed48 100644 --- a/src/rabbit_framing_channel.erl +++ b/src/rabbit_framing_channel.erl @@ -95,15 +95,13 @@ collect_content(ChannelPid, MethodName) -> true -> rabbit_misc:protocol_error( command_invalid, - "expected content header for class ~w, " - "got one for class ~w instead", + "expected content header for class ~w, got one for class ~w instead", [ClassId, HeaderClassId]) end; _ -> rabbit_misc:protocol_error( command_invalid, - "expected content header for class ~w, " - "got non content header frame instead", + "expected content header for class ~w, got non content header frame instead", [ClassId]) end. diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl deleted file mode 100644 index 532be26d..00000000 --- a/src/rabbit_limiter.erl +++ /dev/null @@ -1,195 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_limiter). - --behaviour(gen_server). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2]). --export([start_link/1, shutdown/1]). --export([limit/2, can_send/2, ack/2, register/2, unregister/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(maybe_pid() :: pid() | 'undefined'). - --spec(start_link/1 :: (pid()) -> pid()). --spec(shutdown/1 :: (maybe_pid()) -> 'ok'). --spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(can_send/2 :: (maybe_pid(), pid()) -> bool()). --spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - queues = dict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - -%%---------------------------------------------------------------------------- -%% API -%%---------------------------------------------------------------------------- - -start_link(ChPid) -> - {ok, Pid} = gen_server:start_link(?MODULE, [ChPid], []), - Pid. - -shutdown(undefined) -> - ok; -shutdown(LimiterPid) -> - unlink(LimiterPid), - gen_server2:cast(LimiterPid, shutdown). - -limit(undefined, 0) -> - ok; -limit(LimiterPid, PrefetchCount) -> - gen_server2:cast(LimiterPid, {limit, PrefetchCount}). - -%% Ask the limiter whether the queue can deliver a message without -%% breaching a limit -can_send(undefined, _QPid) -> - true; -can_send(LimiterPid, QPid) -> - rabbit_misc:with_exit_handler( - fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid}) end). - -%% Let the limiter know that the channel has received some acks from a -%% consumer -ack(undefined, _Count) -> ok; -ack(LimiterPid, Count) -> gen_server2:cast(LimiterPid, {ack, Count}). - -register(undefined, _QPid) -> ok; -register(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {register, QPid}). - -unregister(undefined, _QPid) -> ok; -unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([ChPid]) -> - {ok, #lim{ch_pid = ChPid} }. - -handle_call({can_send, QPid}, _From, State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = Volume + 1}} - end. - -handle_cast(shutdown, State) -> - {stop, normal, State}; - -handle_cast({limit, PrefetchCount}, State) -> - {noreply, maybe_notify(State, State#lim{prefetch_count = PrefetchCount})}; - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {noreply, maybe_notify(State, State#lim{volume = NewVolume})}; - -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; - -handle_cast({unregister, QPid}, State) -> - {noreply, forget_queue(QPid, State)}. - -handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> - {noreply, forget_queue(QPid, State)}. - -terminate(_, _) -> - ok. - -code_change(_, State, _) -> - State. - -%%---------------------------------------------------------------------------- -%% Internal plumbing -%%---------------------------------------------------------------------------- - -maybe_notify(OldState, NewState) -> - case limit_reached(OldState) andalso not(limit_reached(NewState)) of - true -> notify_queues(NewState); - false -> NewState - end. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -remember_queue(QPid, State = #lim{queues = Queues}) -> - case dict:is_key(QPid, Queues) of - false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = dict:store(QPid, {MRef, false}, Queues)}; - true -> State - end. - -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> - case dict:find(QPid, Queues) of - {ok, {MRef, _}} -> - true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), - State#lim{queues = dict:erase(QPid, Queues)}; - error -> State - end. - -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, - State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. - -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - dict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], dict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, - State#lim{queues = NewQueues}. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 214c9528..973e163b 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -50,7 +50,6 @@ -export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). --export([start_applications/1, stop_applications/1]). -import(mnesia). -import(lists). @@ -109,8 +108,6 @@ -spec(append_file/2 :: (string(), string()) -> 'ok' | {'error', any()}). -spec(ensure_parent_dirs_exist/1 :: (string()) -> 'ok'). -spec(format_stderr/2 :: (string(), [any()]) -> 'true'). --spec(start_applications/1 :: ([atom()]) -> 'ok'). --spec(stop_applications/1 :: ([atom()]) -> 'ok'). -endif. @@ -237,7 +234,7 @@ filter_exit_map(F, L) -> with_user(Username, Thunk) -> fun () -> - case mnesia:read({rabbit_user, Username}) of + case mnesia:read({user, Username}) of [] -> mnesia:abort({no_such_user, Username}); [_U] -> @@ -247,7 +244,7 @@ with_user(Username, Thunk) -> with_vhost(VHostPath, Thunk) -> fun () -> - case mnesia:read({rabbit_vhost, VHostPath}) of + case mnesia:read({vhost, VHostPath}) of [] -> mnesia:abort({no_such_vhost, VHostPath}); [_V] -> @@ -401,32 +398,3 @@ format_stderr(Fmt, Args) -> Port = open_port({fd, 0, 2}, [out]), port_command(Port, io_lib:format(Fmt, Args)), port_close(Port). - -manage_applications(Iterate, Do, Undo, SkipError, ErrorTag, Apps) -> - Iterate(fun (App, Acc) -> - case Do(App) of - ok -> [App | Acc]; - {error, {SkipError, _}} -> Acc; - {error, Reason} -> - lists:foreach(Undo, Acc), - throw({error, {ErrorTag, App, Reason}}) - end - end, [], Apps), - ok. - -start_applications(Apps) -> - manage_applications(fun lists:foldl/3, - fun application:start/1, - fun application:stop/1, - already_started, - cannot_start_application, - Apps). - -stop_applications(Apps) -> - manage_applications(fun lists:foldr/3, - fun application:stop/1, - fun application:start/1, - not_started, - cannot_stop_application, - Apps). - diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 15213861..d19c37cb 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -100,50 +100,33 @@ force_reset() -> reset(true). %%-------------------------------------------------------------------- table_definitions() -> - [{rabbit_user, - [{record_name, user}, - {attributes, record_info(fields, user)}, - {disc_copies, [node()]}]}, - {rabbit_user_permission, - [{record_name, user_permission}, - {attributes, record_info(fields, user_permission)}, - {disc_copies, [node()]}]}, - {rabbit_vhost, - [{record_name, vhost}, - {attributes, record_info(fields, vhost)}, - {disc_copies, [node()]}]}, - {rabbit_config, - [{disc_copies, [node()]}]}, - {rabbit_listener, - [{record_name, listener}, - {attributes, record_info(fields, listener)}, - {type, bag}]}, - {rabbit_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {disc_copies, [node()]}]}, - {rabbit_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}]}, - {rabbit_reverse_route, - [{record_name, reverse_route}, - {attributes, record_info(fields, reverse_route)}, - {type, ordered_set}]}, - {rabbit_durable_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {disc_copies, [node()]}]}, - {rabbit_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}]}, - {rabbit_durable_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {disc_copies, [node()]}]}, - {rabbit_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}]. + [{user, [{disc_copies, [node()]}, + {attributes, record_info(fields, user)}]}, + {user_vhost, [{type, bag}, + {disc_copies, [node()]}, + {attributes, record_info(fields, user_vhost)}, + {index, [virtual_host]}]}, + {vhost, [{disc_copies, [node()]}, + {attributes, record_info(fields, vhost)}]}, + {rabbit_config, [{disc_copies, [node()]}]}, + {listener, [{type, bag}, + {attributes, record_info(fields, listener)}]}, + {durable_routes, [{disc_copies, [node()]}, + {record_name, route}, + {attributes, record_info(fields, route)}]}, + {route, [{type, ordered_set}, + {attributes, record_info(fields, route)}]}, + {reverse_route, [{type, ordered_set}, + {attributes, record_info(fields, reverse_route)}]}, + {durable_exchanges, [{disc_copies, [node()]}, + {record_name, exchange}, + {attributes, record_info(fields, exchange)}]}, + {exchange, [{attributes, record_info(fields, exchange)}]}, + {durable_queues, [{disc_copies, [node()]}, + {record_name, amqqueue}, + {attributes, record_info(fields, amqqueue)}]}, + {amqqueue, [{attributes, record_info(fields, amqqueue)}, + {index, [pid]}]}]. table_names() -> [Tab || {Tab, _} <- table_definitions()]. @@ -260,8 +243,8 @@ init_db(ClusterNodes) -> %% NB: we cannot use rabbit_log here since %% it may not have been started yet error_logger:warning_msg( - "schema integrity check failed: ~p~n" - "moving database to backup location " + "schema integrity check failed: ~p~n" ++ + "moving database to backup location " ++ "and recreating schema from scratch~n", [Reason]), ok = move_db(), diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index 2dbd5a5a..99ea37d8 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -123,7 +123,6 @@ stop_tcp_listener(Host, Port) -> tcp_listener_started(IPAddress, Port) -> ok = mnesia:dirty_write( - rabbit_listener, #listener{node = node(), protocol = tcp, host = tcp_host(IPAddress), @@ -131,20 +130,19 @@ tcp_listener_started(IPAddress, Port) -> tcp_listener_stopped(IPAddress, Port) -> ok = mnesia:dirty_delete_object( - rabbit_listener, #listener{node = node(), protocol = tcp, host = tcp_host(IPAddress), port = Port}). active_listeners() -> - rabbit_misc:dirty_read_all(rabbit_listener). + rabbit_misc:dirty_read_all(listener). node_listeners(Node) -> - mnesia:dirty_read(rabbit_listener, Node). + mnesia:dirty_read(listener, Node). on_node_down(Node) -> - ok = mnesia:dirty_delete(rabbit_listener, Node). + ok = mnesia:dirty_delete(listener, Node). start_client(Sock) -> {ok, Child} = supervisor:start_child(rabbit_tcp_client_sup, []), diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 12ee299e..3f8d7cac 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -173,8 +173,7 @@ setup_profiling() -> Value = rabbit_misc:get_config(profiling_enabled, false), case Value of once -> - rabbit_log:info("Enabling profiling for this connection, " - "and disabling for subsequent.~n"), + rabbit_log:info("Enabling profiling for this connection, and disabling for subsequent.~n"), rabbit_misc:set_config(profiling_enabled, false), fprof:trace(start); true -> @@ -284,8 +283,6 @@ mainloop(Parent, Deb, State = #v1{sock= Sock, recv_ref = Ref}) -> exit(Reason); {'EXIT', _Pid, E = {writer, send_failed, _Error}} -> throw(E); - {channel_exit, Channel, Reason} -> - mainloop(Parent, Deb, handle_channel_exit(Channel, Reason, State)); {'EXIT', Pid, Reason} -> mainloop(Parent, Deb, handle_dependent_exit(Pid, Reason, State)); {terminate_channel, Channel, Ref1} -> @@ -353,14 +350,6 @@ terminate_channel(Channel, Ref, State) -> end, State. -handle_channel_exit(Channel, Reason, State) -> - %% We remove the channel from the inbound map only. That allows - %% the channel to be re-opened, but also means the remaining - %% cleanup, including possibly closing the connection, is deferred - %% until we get the (normal) exit signal. - erase({channel, Channel}), - handle_exception(State, Channel, Reason). - handle_dependent_exit(Pid, normal, State) -> channel_cleanup(Pid), maybe_close(State); @@ -415,8 +404,7 @@ wait_for_channel_termination(N, TimerRef) -> normal -> ok; _ -> rabbit_log:error( - "connection ~p, channel ~p - " - "error while terminating:~n~p~n", + "connection ~p, channel ~p - error while terminating:~n~p~n", [self(), Channel, Reason]) end, wait_for_channel_termination(N-1, TimerRef) @@ -721,8 +709,8 @@ send_to_new_channel(Channel, AnalyzedFrame, State) -> vhost = VHost}} = State, WriterPid = rabbit_writer:start(Sock, Channel, FrameMax), ChPid = rabbit_framing_channel:start_link( - fun rabbit_channel:start_link/5, - [Channel, self(), WriterPid, Username, VHost]), + fun rabbit_channel:start_link/4, + [self(), WriterPid, Username, VHost]), put({channel, Channel}, {chpid, ChPid}), put({chpid, ChPid}, {channel, Channel}), ok = rabbit_framing_channel:process(ChPid, AnalyzedFrame); diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl index ff42ea04..ad653a2f 100644 --- a/src/rabbit_router.erl +++ b/src/rabbit_router.erl @@ -32,7 +32,7 @@ -module(rabbit_router). -include("rabbit.hrl"). --behaviour(gen_server2). +-behaviour(gen_server). -export([start_link/0, deliver/5]). @@ -58,7 +58,7 @@ %%---------------------------------------------------------------------------- start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). -ifdef(BUG19758). @@ -100,7 +100,7 @@ deliver_per_node(NodeQPids, Mandatory = false, Immediate = false, %% than the non-immediate case below. {ok, lists:flatmap( fun ({Node, QPids}) -> - gen_server2:cast( + gen_server:cast( {?SERVER, Node}, {deliver, QPids, Mandatory, Immediate, Txn, Message}), QPids @@ -110,7 +110,7 @@ deliver_per_node(NodeQPids, Mandatory, Immediate, Txn, Message) -> R = rabbit_misc:upmap( fun ({Node, QPids}) -> - try gen_server2:call( + try gen_server:call( {?SERVER, Node}, {deliver, QPids, Mandatory, Immediate, Txn, Message}) catch @@ -143,7 +143,7 @@ handle_call({deliver, QPids, Mandatory, Immediate, Txn, Message}, spawn( fun () -> R = run_bindings(QPids, Mandatory, Immediate, Txn, Message), - gen_server2:reply(From, R) + gen_server:reply(From, R) end), {noreply, State}. diff --git a/src/rabbit_sasl_report_file_h.erl b/src/rabbit_sasl_report_file_h.erl index 2a365ce1..9e4c9c8a 100644 --- a/src/rabbit_sasl_report_file_h.erl +++ b/src/rabbit_sasl_report_file_h.erl @@ -47,7 +47,7 @@ init({{File, Suffix}, []}) -> case rabbit_misc:append_file(File, Suffix) of ok -> ok; {error, Error} -> - rabbit_log:error("Failed to append contents of " + rabbit_log:error("Failed to append contents of " ++ "sasl log file '~s' to '~s':~n~p~n", [File, [File, Suffix], Error]) end, diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 6312e8e3..df2e71d9 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -444,16 +444,17 @@ test_user_management() -> {error, {no_such_vhost, _}} = control_action(delete_vhost, ["/testhost"]), {error, {no_such_user, _}} = - control_action(set_permissions, ["foo", ".*", ".*", ".*"]), + control_action(map_user_vhost, ["foo", "/"]), {error, {no_such_user, _}} = - control_action(clear_permissions, ["foo"]), + control_action(unmap_user_vhost, ["foo", "/"]), {error, {no_such_user, _}} = - control_action(list_user_permissions, ["foo"]), + control_action(list_user_vhosts, ["foo"]), {error, {no_such_vhost, _}} = - control_action(list_permissions, ["-p", "/testhost"]), - {error, {invalid_regexp, _, _}} = - control_action(set_permissions, ["guest", "+foo", ".*", ".*"]), - + control_action(map_user_vhost, ["guest", "/testhost"]), + {error, {no_such_vhost, _}} = + control_action(unmap_user_vhost, ["guest", "/testhost"]), + {error, {no_such_vhost, _}} = + control_action(list_vhost_users, ["/testhost"]), %% user creation ok = control_action(add_user, ["foo", "bar"]), {error, {user_already_exists, _}} = @@ -468,16 +469,13 @@ test_user_management() -> ok = control_action(list_vhosts, []), %% user/vhost mapping - ok = control_action(set_permissions, ["-p", "/testhost", - "foo", ".*", ".*", ".*"]), - ok = control_action(set_permissions, ["-p", "/testhost", - "foo", ".*", ".*", ".*"]), - ok = control_action(list_permissions, ["-p", "/testhost"]), - ok = control_action(list_user_permissions, ["foo"]), + ok = control_action(map_user_vhost, ["foo", "/testhost"]), + ok = control_action(map_user_vhost, ["foo", "/testhost"]), + ok = control_action(list_user_vhosts, ["foo"]), %% user/vhost unmapping - ok = control_action(clear_permissions, ["-p", "/testhost", "foo"]), - ok = control_action(clear_permissions, ["-p", "/testhost", "foo"]), + ok = control_action(unmap_user_vhost, ["foo", "/testhost"]), + ok = control_action(unmap_user_vhost, ["foo", "/testhost"]), %% vhost deletion ok = control_action(delete_vhost, ["/testhost"]), @@ -486,8 +484,7 @@ test_user_management() -> %% deleting a populated vhost ok = control_action(add_vhost, ["/testhost"]), - ok = control_action(set_permissions, ["-p", "/testhost", - "foo", ".*", ".*", ".*"]), + ok = control_action(map_user_vhost, ["foo", "/testhost"]), ok = control_action(delete_vhost, ["/testhost"]), %% user deletion -- cgit v1.2.1 From ecba118cdfa383f6b98089f9dcbc0bf9c37bb826 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Mon, 16 Feb 2009 11:42:59 +0000 Subject: prevent unwanted path expansion this time committed on a branch in the right place --- scripts/rabbitmq-multi | 5 +++++ scripts/rabbitmq-server | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/scripts/rabbitmq-multi b/scripts/rabbitmq-multi index 84985e90..164c5e18 100755 --- a/scripts/rabbitmq-multi +++ b/scripts/rabbitmq-multi @@ -54,6 +54,11 @@ export \ RABBITMQ_SCRIPT_HOME \ RABBITMQ_PIDS_FILE +# we need to turn off path expansion because some of the vars, notably +# RABBITMQ_MULTI_ERL_ARGS, may contain terms that look like globs and +# there is no other way of preventing their expansion. +set -f + exec erl \ -pa "`dirname $0`/../ebin" \ -noinput \ diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 572262c9..9a35c477 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -73,6 +73,11 @@ fi RABBITMQ_START_RABBIT= [ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT='-noinput -s rabbit' +# we need to turn off path expansion because some of the vars, notably +# RABBITMQ_SERVER_ERL_ARGS, contain terms that look like globs and +# there is no other way of preventing their expansion. +set -f + exec erl \ -pa "`dirname $0`/../ebin" \ ${RABBITMQ_START_RABBIT} \ -- cgit v1.2.1 From d67f82ffaf8f6b4f70e4482c306fe1b42b66a6b9 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Tue, 17 Feb 2009 23:15:06 +0000 Subject: Reformatted more POD items and added HTML anchors --- docs/rabbitmq-server.1.pod | 68 ++++++++++++++++++++++++++-------------------- docs/rabbitmqctl.1.pod | 6 ++++ 2 files changed, 45 insertions(+), 29 deletions(-) diff --git a/docs/rabbitmq-server.1.pod b/docs/rabbitmq-server.1.pod index 00210c8b..96f713dd 100644 --- a/docs/rabbitmq-server.1.pod +++ b/docs/rabbitmq-server.1.pod @@ -20,35 +20,45 @@ process or use rabbitmqctl(1). =head1 ENVIRONMENT -B - Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory - where Mnesia database files should be placed. - -B - Defaults to /var/log/rabbitmq. Log files generated by the server - will be placed in this directory. - -B - Defaults to rabbit. This can be useful if you want to run more - than one node per machine - B should be unique - per erlang-node-and-machine combination. See clustering on a - single machine guide at - http://www.rabbitmq.com/clustering.html#single-machine for - details. - -B - Defaults to 0.0.0.0. This can be changed if you only want to bind - to one network interface. - -B - Defaults to 5672. - -B - Defaults to /etc/default/rabbitmq_cluster.config. If this file is - present it is used by the server to auto-configure a RabbitMQ - cluster. - See the clustering guide at http://www.rabbitmq.com/clustering.html - for details. +=for xhtml + +=over + +=item B + +Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory +where Mnesia database files should be placed. + +=item B + +Defaults to /var/log/rabbitmq. Log files generated by the server +will be placed in this directory. + +=item B + +Defaults to rabbit. This can be useful if you want to run more +than one node per machine - B should be unique +per erlang-node-and-machine combination. See the +L +for details. + +=item B + +Defaults to 0.0.0.0. This can be changed if you only want to bind +to one network interface. + +=item B + +Defaults to 5672. + +=item B + +Defaults to /etc/default/rabbitmq_cluster.config. If this file is +present it is used by the server to auto-configure a RabbitMQ +cluster. See the L +for details. + +=back =head1 OPTIONS diff --git a/docs/rabbitmqctl.1.pod b/docs/rabbitmqctl.1.pod index 981adf30..af540b3e 100644 --- a/docs/rabbitmqctl.1.pod +++ b/docs/rabbitmqctl.1.pod @@ -141,6 +141,8 @@ list_queues [-p I] [I ...] =head3 Queue information items +=for xhtml + =over 4 =item name @@ -206,6 +208,8 @@ list_exchanges [-p I] [I ...] =head3 Exchange information items +=for xhtml + =over 4 =item name @@ -240,6 +244,8 @@ list_connections [I ...] =head3 Connection information items +=for xhtml + =over 4 =item node -- cgit v1.2.1 From 3215619460e8a935dae5d25c00a7df31bf5454e8 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 16 Mar 2009 17:54:36 +0000 Subject: Update some 64-bit documentation --- packaging/windows/rabbitmq-service.pod | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/packaging/windows/rabbitmq-service.pod b/packaging/windows/rabbitmq-service.pod index 7c4d3ef2..92648076 100644 --- a/packaging/windows/rabbitmq-service.pod +++ b/packaging/windows/rabbitmq-service.pod @@ -92,8 +92,10 @@ Defaults to 5672. =head2 ERLANG_SERVICE_MANAGER_PATH -Defaults to F. This is -the installation location of the Erlang service manager. +Defaults to F +(or F for 64-bit +environments). This is the installation location of the Erlang service +manager. =head2 CLUSTER_CONFIG_FILE -- cgit v1.2.1 From 54ad224a3d9885f8b2bd766917e385ee77300d9c Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Wed, 25 Mar 2009 09:25:26 +0000 Subject: document support for headers exchange We forgot to do this bug 20152. --- docs/rabbitmqctl.1.pod | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/rabbitmqctl.1.pod b/docs/rabbitmqctl.1.pod index c9c94dd8..013062b4 100644 --- a/docs/rabbitmqctl.1.pod +++ b/docs/rabbitmqctl.1.pod @@ -219,7 +219,7 @@ URL-encoded name of the exchange =item type -exchange type (B, B or B) +exchange type (B, B, B, or B) =item durable -- cgit v1.2.1 From 4bffa78fed834258fb1978ef25e209208f56fba2 Mon Sep 17 00:00:00 2001 From: David Wragg Date: Fri, 8 May 2009 15:37:29 +0100 Subject: Remove duplicated username in useradd command --- packaging/RPMS/Fedora/rabbitmq-server.spec | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec index 54c7def5..184a9832 100644 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ b/packaging/RPMS/Fedora/rabbitmq-server.spec @@ -81,8 +81,8 @@ fi # create rabbitmq user if ! getent passwd rabbitmq >/dev/null; then - useradd -r -g rabbitmq -d %{_localstatedir}/lib/rabbitmq rabbitmq \ - -c "RabbitMQ messaging server" rabbitmq + useradd -r -g rabbitmq -d %{_localstatedir}/lib/rabbitmq rabbitmq \ + -c "RabbitMQ messaging server" fi /sbin/chkconfig --add %{name} -- cgit v1.2.1 From 3290b43b18d0ca3790d8d4bb4c099b63468a3932 Mon Sep 17 00:00:00 2001 From: David Wragg Date: Fri, 8 May 2009 15:44:58 +0100 Subject: Create user and group in %pre rather than %post They are referred to in the %files section, which leads to warnings if they are not created until %post runs. --- packaging/RPMS/Fedora/rabbitmq-server.spec | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec index 184a9832..6bf3b841 100644 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ b/packaging/RPMS/Fedora/rabbitmq-server.spec @@ -28,13 +28,6 @@ scalable implementation of an AMQP broker. %define _maindir %{buildroot}%{_rabbit_erllibdir} -%pre -if [ $1 -gt 1 ]; then - #Upgrade - stop and remove previous instance of rabbitmq-server init.d script - /sbin/service rabbitmq-server stop - /sbin/chkconfig --del rabbitmq-server -fi - %prep %setup -q @@ -73,7 +66,14 @@ echo '%defattr(-,root,root, -)' >> %{_builddir}/filelist.%{name}.rpm ! -regex '\.\(%{_rabbit_erllibdir}\|%{_rabbit_libdir}\).*' \ | sed -e 's/^\.//' >> %{_builddir}/filelist.%{name}.rpm) -%post +%pre + +if [ $1 -gt 1 ]; then + #Upgrade - stop and remove previous instance of rabbitmq-server init.d script + /sbin/service rabbitmq-server stop + /sbin/chkconfig --del rabbitmq-server +fi + # create rabbitmq group if ! getent group rabbitmq >/dev/null; then groupadd -r rabbitmq @@ -85,6 +85,7 @@ if ! getent passwd rabbitmq >/dev/null; then -c "RabbitMQ messaging server" fi +%post /sbin/chkconfig --add %{name} %preun -- cgit v1.2.1 From 35863cd5d7e3b01670b828c7d656d45d5e122c0f Mon Sep 17 00:00:00 2001 From: Vlad Ionescu Date: Sat, 13 Jun 2009 03:05:59 +0100 Subject: fixing dialyzer error in rabbitmq-erlang-client --- src/rabbit_access_control.erl | 4 ++-- src/rabbit_reader.erl | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl index 99b912ec..e61eb87f 100644 --- a/src/rabbit_access_control.erl +++ b/src/rabbit_access_control.erl @@ -49,7 +49,7 @@ -spec(check_login/2 :: (binary(), binary()) -> user()). -spec(user_pass_login/2 :: (username(), password()) -> user()). --spec(check_vhost_access/2 :: (user(), vhost()) -> 'ok'). +-spec(check_vhost_access/2 :: (username(), vhost()) -> 'ok'). -spec(check_resource_access/3 :: (username(), r(atom()), permission_atom()) -> 'ok'). -spec(add_user/2 :: (username(), password()) -> 'ok'). @@ -128,7 +128,7 @@ internal_lookup_vhost_access(Username, VHostPath) -> end end). -check_vhost_access(#user{username = Username}, VHostPath) -> +check_vhost_access(Username, VHostPath) -> ?LOGDEBUG("Checking VHost access for ~p to ~p~n", [Username, VHostPath]), case internal_lookup_vhost_access(Username, VHostPath) of {ok, _R} -> diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index ef8038e7..a67b2edc 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -610,9 +610,9 @@ handle_method0(#'connection.open'{virtual_host = VHostPath, insist = Insist}, State = #v1{connection_state = opening, connection = Connection = #connection{ - user = User}, + user = #user{username = Username}}, sock = Sock}) -> - ok = rabbit_access_control:check_vhost_access(User, VHostPath), + ok = rabbit_access_control:check_vhost_access(Username, VHostPath), NewConnection = Connection#connection{vhost = VHostPath}, KnownHosts = format_listeners(rabbit_networking:active_listeners()), Redirects = compute_redirects(Insist), -- cgit v1.2.1 From 1db99d4c0e225cdc8b26ef71ce4cfd0585746adc Mon Sep 17 00:00:00 2001 From: Tim Clark Date: Mon, 22 Jun 2009 11:49:41 +0100 Subject: Portfile replaced by Portfile.in, Portfile created by makefile which substitutes version and check sums --- packaging/macports/Makefile | 25 +++++ packaging/macports/net/rabbitmq-server/Portfile | 104 --------------------- packaging/macports/net/rabbitmq-server/Portfile.in | 104 +++++++++++++++++++++ 3 files changed, 129 insertions(+), 104 deletions(-) create mode 100644 packaging/macports/Makefile delete mode 100644 packaging/macports/net/rabbitmq-server/Portfile create mode 100644 packaging/macports/net/rabbitmq-server/Portfile.in diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile new file mode 100644 index 00000000..449dc5c2 --- /dev/null +++ b/packaging/macports/Makefile @@ -0,0 +1,25 @@ +TARBALL_DIR=../../dist +TARBALL=$(shell (cd $(TARBALL_DIR); echo rabbitmq-server-[0-9]*.tar.gz)) +VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') +UNPACKED_DIR=rabbitmq-server-$(VERSION) +PACKAGENAME=rabbitmq-server +SIGNING_KEY_ID=056E8E56 + +ifneq "$(UNOFFICIAL_RELEASE)" "" + SIGNING=-us -uc +else + SIGNING=-k$(SIGNING_KEY_ID) +endif + +all: + @echo 'Please choose a target from the Makefile.' + +MD5=$(shell md5sum $(TARBALL_DIR)/$(TARBALL) | sed -e 's/\([0-9a-f]*\).*/\1/') +SHA1=$(shell openssl sha1 ../../dist/rabbitmq-server-0.0.0.tar.gz | sed -e 's/SHA1\(.*\)= //') +RMD160=$(shell openssl rmd160 ../../dist/rabbitmq-server-0.0.0.tar.gz | sed -e 's/RIPEMD160\(.*\)= //') +package: clean + echo $(MD5) $(SHA1) $(RMD160) + sed -e 's/%MD5%/$(MD5)/' -e 's/%SHA1%/$(SHA1)/' -e 's/%RMD160%/$(RMD160)/' -e 's/%VERSION%/$(VERSION)/' < net/rabbitmq-server/Portfile.in > net/rabbitmq-server/Portfile + #UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) + +clean: diff --git a/packaging/macports/net/rabbitmq-server/Portfile b/packaging/macports/net/rabbitmq-server/Portfile deleted file mode 100644 index 4db6c2f6..00000000 --- a/packaging/macports/net/rabbitmq-server/Portfile +++ /dev/null @@ -1,104 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version 1.5.5 -revision 0 -categories net -maintainers tonyg@rabbitmq.com -platforms darwin -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage http://www.rabbitmq.com/ -master_sites http://www.rabbitmq.com/releases/rabbitmq-server/v${version}/ - -checksums \ - md5 1dceb98bb57cd6acef90f58e96a7fce4 \ - sha1 5daa50859c9f2342cc824188f4a3cc7f9edb938e \ - rmd160 6e3703a30d45cb21ba6f7435fb68992027cf18f0 - -depends_build port:erlang port:py25-simplejson -depends_run port:erlang - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin - -use_configure no - -use_parallel_build yes - -build.args PYTHON=${prefix}/bin/python2.5 - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/erlang/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq.conf):${prefix}\\1:g" \ - ${sbindir}/rabbitmq-multi \ - ${sbindir}/rabbitmq-server \ - ${sbindir}/rabbitmqctl - reinplace -E "s:(CLUSTER_CONFIG_FILE)=/:\\1=${prefix}/:" \ - ${sbindir}/rabbitmq-multi \ - ${sbindir}/rabbitmq-server \ - ${sbindir}/rabbitmqctl - reinplace -E "s:(LOG_BASE)=/:\\1=${prefix}/:" \ - ${sbindir}/rabbitmq-multi \ - ${sbindir}/rabbitmq-server \ - ${sbindir}/rabbitmqctl - reinplace -E "s:(MNESIA_BASE)=/:\\1=${prefix}/:" \ - ${sbindir}/rabbitmq-multi \ - ${sbindir}/rabbitmq-server \ - ${sbindir}/rabbitmqctl - reinplace -E "s:(PIDS_FILE)=/:\\1=${prefix}/:" \ - ${sbindir}/rabbitmq-multi \ - ${sbindir}/rabbitmq-server \ - ${sbindir}/rabbitmqctl - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-multi - - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-multi - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmqctl - -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/net/rabbitmq-server/Portfile.in b/packaging/macports/net/rabbitmq-server/Portfile.in new file mode 100644 index 00000000..9d841979 --- /dev/null +++ b/packaging/macports/net/rabbitmq-server/Portfile.in @@ -0,0 +1,104 @@ +# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 +# $Id$ + +PortSystem 1.0 +name rabbitmq-server +version %VERSION% +revision 0 +categories net +maintainers tonyg@rabbitmq.com +platforms darwin +description The RabbitMQ AMQP Server +long_description \ + RabbitMQ is an implementation of AMQP, the emerging standard for \ + high performance enterprise messaging. The RabbitMQ server is a \ + robust and scalable implementation of an AMQP broker. + + +homepage http://www.rabbitmq.com/ +master_sites http://www.rabbitmq.com/releases/rabbitmq-server/v${version}/ + +checksums \ + md5 %MD5% \ + sha1 %SHA1% \ + rmd160 %RMD160% + +depends_build port:erlang port:py25-simplejson +depends_run port:erlang + +set serveruser rabbitmq +set servergroup rabbitmq +set serverhome ${prefix}/var/lib/rabbitmq +set logdir ${prefix}/var/log/rabbitmq +set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia +set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server +set sbindir ${destroot}${prefix}/lib/rabbitmq/bin +set wrappersbin ${destroot}${prefix}/sbin + +use_configure no + +use_parallel_build yes + +build.args PYTHON=${prefix}/bin/python2.5 + +destroot.destdir \ + TARGET_DIR=${destroot}${prefix}/lib/erlang/lib/rabbitmq_server-${version} \ + SBIN_DIR=${sbindir} \ + MAN_DIR=${destroot}${prefix}/share/man + +destroot.keepdirs \ + ${destroot}${logdir} \ + ${destroot}${mnesiadbdir} + +pre-destroot { + addgroup ${servergroup} + adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} +} + +post-destroot { + xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} + xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} + xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} + + reinplace -E "s:(/etc/rabbitmq/rabbitmq.conf):${prefix}\\1:g" \ + ${sbindir}/rabbitmq-multi \ + ${sbindir}/rabbitmq-server \ + ${sbindir}/rabbitmqctl + reinplace -E "s:(CLUSTER_CONFIG_FILE)=/:\\1=${prefix}/:" \ + ${sbindir}/rabbitmq-multi \ + ${sbindir}/rabbitmq-server \ + ${sbindir}/rabbitmqctl + reinplace -E "s:(LOG_BASE)=/:\\1=${prefix}/:" \ + ${sbindir}/rabbitmq-multi \ + ${sbindir}/rabbitmq-server \ + ${sbindir}/rabbitmqctl + reinplace -E "s:(MNESIA_BASE)=/:\\1=${prefix}/:" \ + ${sbindir}/rabbitmq-multi \ + ${sbindir}/rabbitmq-server \ + ${sbindir}/rabbitmqctl + reinplace -E "s:(PIDS_FILE)=/:\\1=${prefix}/:" \ + ${sbindir}/rabbitmq-multi \ + ${sbindir}/rabbitmq-server \ + ${sbindir}/rabbitmqctl + + xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ + ${wrappersbin}/rabbitmq-multi + + reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ + ${wrappersbin}/rabbitmq-multi + reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ + ${wrappersbin}/rabbitmq-multi + file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmq-server + file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmqctl + +} + +pre-install { + system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" +} + +startupitem.create yes +startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" +startupitem.start "rabbitmq-server 2>&1" +startupitem.stop "rabbitmqctl stop 2>&1" +startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log -- cgit v1.2.1 From 754f649dfa80b833b2be141e3a886d34102ae49a Mon Sep 17 00:00:00 2001 From: Tim Clark Date: Mon, 22 Jun 2009 12:26:33 +0100 Subject: Packages port files into tar archive --- packaging/macports/Makefile | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile index 449dc5c2..5283694f 100644 --- a/packaging/macports/Makefile +++ b/packaging/macports/Makefile @@ -1,25 +1,18 @@ TARBALL_DIR=../../dist TARBALL=$(shell (cd $(TARBALL_DIR); echo rabbitmq-server-[0-9]*.tar.gz)) VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') -UNPACKED_DIR=rabbitmq-server-$(VERSION) -PACKAGENAME=rabbitmq-server -SIGNING_KEY_ID=056E8E56 -ifneq "$(UNOFFICIAL_RELEASE)" "" - SIGNING=-us -uc -else - SIGNING=-k$(SIGNING_KEY_ID) -endif +MD5=$(shell md5sum $(TARBALL_DIR)/$(TARBALL) | sed -e 's/\([0-9a-f]*\).*/\1/') +SHA1=$(shell openssl sha1 $(TARBALL_DIR)/$(TARBALL) | sed -e 's/SHA1\(.*\)= //') +RMD160=$(shell openssl rmd160 $(TARBALL_DIR)/$(TARBALL) | sed -e 's/RIPEMD160\(.*\)= //') all: @echo 'Please choose a target from the Makefile.' -MD5=$(shell md5sum $(TARBALL_DIR)/$(TARBALL) | sed -e 's/\([0-9a-f]*\).*/\1/') -SHA1=$(shell openssl sha1 ../../dist/rabbitmq-server-0.0.0.tar.gz | sed -e 's/SHA1\(.*\)= //') -RMD160=$(shell openssl rmd160 ../../dist/rabbitmq-server-0.0.0.tar.gz | sed -e 's/RIPEMD160\(.*\)= //') package: clean - echo $(MD5) $(SHA1) $(RMD160) sed -e 's/%MD5%/$(MD5)/' -e 's/%SHA1%/$(SHA1)/' -e 's/%RMD160%/$(RMD160)/' -e 's/%VERSION%/$(VERSION)/' < net/rabbitmq-server/Portfile.in > net/rabbitmq-server/Portfile - #UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) + tar cvf rabbitmq-server-$(VERSION)-macports.tar.gz --exclude=Portfile.in net clean: + rm -f net/rabbitmq-server/Portfile + rm -f *-macports.tar.gz -- cgit v1.2.1 From 06dc1104d54c1b5a0879031f3ef6bf41bb54b3b0 Mon Sep 17 00:00:00 2001 From: Tim Clark Date: Mon, 22 Jun 2009 15:07:05 +0100 Subject: Uses openssl for md5 calculation so that script is portable between unix and os x --- packaging/macports/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile index 5283694f..40eafb70 100644 --- a/packaging/macports/Makefile +++ b/packaging/macports/Makefile @@ -2,7 +2,7 @@ TARBALL_DIR=../../dist TARBALL=$(shell (cd $(TARBALL_DIR); echo rabbitmq-server-[0-9]*.tar.gz)) VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') -MD5=$(shell md5sum $(TARBALL_DIR)/$(TARBALL) | sed -e 's/\([0-9a-f]*\).*/\1/') +MD5=$(shell openssl md5 $(TARBALL_DIR)/$(TARBALL) | sed -e 's/MD5\(.*\)= //') SHA1=$(shell openssl sha1 $(TARBALL_DIR)/$(TARBALL) | sed -e 's/SHA1\(.*\)= //') RMD160=$(shell openssl rmd160 $(TARBALL_DIR)/$(TARBALL) | sed -e 's/RIPEMD160\(.*\)= //') -- cgit v1.2.1 From e8ffd72ed4432583bf5294465766fe52534dced2 Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Tue, 7 Jul 2009 14:21:54 +0100 Subject: Started work on the plugin loader mechanism --- src/rabbit.erl | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 196212ea..3576c435 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -138,7 +138,6 @@ start(normal, []) -> {ok, MemoryAlarms} = application:get_env(memory_alarms), ok = rabbit_alarm:start(MemoryAlarms), - ok = rabbit_binary_generator: check_empty_content_body_frame_size(), @@ -175,6 +174,10 @@ start(normal, []) -> ok = rabbit_networking:start_tcp_listener(Host, Port) end, TCPListeners) + end}, + {"plugins", + fun () -> + ok = start_plugins() end}] ++ ExtraSteps), @@ -289,6 +292,26 @@ start_builtin_amq_applications() -> %%restart ok. +%% Loads shared libraries and plugins that exist in the plugin dir +start_plugins() -> + PluginsDir = "plugins", + case filelib:is_dir(PluginsDir) of + false -> ok; + true -> + LibDir = PluginsDir ++ "/lib", + case filelib:is_dir(LibDir) of + false -> ok; + true -> true = code:add_path(LibDir) + end, + [begin + [Dir,Plugin,Ebin,Mod|_] = string:tokens(PluginApp,"/."), + true = code:add_path(Dir ++ "/" ++ Plugin ++ "/" ++ Ebin), + %% TODO: Might want a separate supervisor + start_child(list_to_atom(Mod)) + end || PluginApp <- filelib:wildcard("plugins/*/ebin/*.app")], + ok + end. + rotate_logs(File, Suffix, Handler) -> rotate_logs(File, Suffix, Handler, Handler). -- cgit v1.2.1 From 19f4f09891b2d2982d8754a031f142ee057bce5f Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Wed, 8 Jul 2009 15:27:38 +0100 Subject: Library loading can traverse subdirs to load the binaries they need --- src/rabbit.erl | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 3576c435..56db74d5 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -301,17 +301,34 @@ start_plugins() -> LibDir = PluginsDir ++ "/lib", case filelib:is_dir(LibDir) of false -> ok; - true -> true = code:add_path(LibDir) + true -> + % TODO: Refactor the commonality + [begin + [WithoutExtension|_] = string:tokens(Path, "."), + io:format("Loading ~p~n",[WithoutExtension]), + {module,_} = code:load_abs(WithoutExtension) + end || Path <- filelib:wildcard(LibDir ++ "/*/ebin/*.beam")] end, [begin - [Dir,Plugin,Ebin,Mod|_] = string:tokens(PluginApp,"/."), + [Dir,Plugin,Ebin,Mod|_] = string:tokens(Config,"/."), true = code:add_path(Dir ++ "/" ++ Plugin ++ "/" ++ Ebin), %% TODO: Might want a separate supervisor - start_child(list_to_atom(Mod)) - end || PluginApp <- filelib:wildcard("plugins/*/ebin/*.app")], + %start_child(list_to_atom(Mod)) + {Name, Fun} = parse_plugin_config(Config), + %Fun(), + io:format("Started ~n plugin ~p", [Name]) + end || Config <- filelib:wildcard("plugins/*/ebin/*.plugin")], ok end. +parse_plugin_config(File) -> + case file:consult(File) of + {ok, [{plugin, Name, [{startup_function, {M, F, A}}, {env, Env}]}]} -> + {Name, M:F(A)}; + _ -> + error + end. + rotate_logs(File, Suffix, Handler) -> rotate_logs(File, Suffix, Handler, Handler). -- cgit v1.2.1 From f7dad1c36b57b8f4e99571a8c4c0c8329a2363ac Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Wed, 8 Jul 2009 15:31:27 +0100 Subject: Nuked io:format --- src/rabbit.erl | 1 - 1 file changed, 1 deletion(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 56db74d5..6c3d87a8 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -305,7 +305,6 @@ start_plugins() -> % TODO: Refactor the commonality [begin [WithoutExtension|_] = string:tokens(Path, "."), - io:format("Loading ~p~n",[WithoutExtension]), {module,_} = code:load_abs(WithoutExtension) end || Path <- filelib:wildcard(LibDir ++ "/*/ebin/*.beam")] end, -- cgit v1.2.1 From 9f91aa7097c4829a3f0f061322dbfb6417b44a63 Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Wed, 8 Jul 2009 17:39:04 +0100 Subject: Now works with RMQ http adapter --- src/rabbit.erl | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 6c3d87a8..5b9783e0 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -302,28 +302,29 @@ start_plugins() -> case filelib:is_dir(LibDir) of false -> ok; true -> - % TODO: Refactor the commonality [begin [WithoutExtension|_] = string:tokens(Path, "."), {module,_} = code:load_abs(WithoutExtension) end || Path <- filelib:wildcard(LibDir ++ "/*/ebin/*.beam")] end, [begin - [Dir,Plugin,Ebin,Mod|_] = string:tokens(Config,"/."), - true = code:add_path(Dir ++ "/" ++ Plugin ++ "/" ++ Ebin), - %% TODO: Might want a separate supervisor - %start_child(list_to_atom(Mod)) - {Name, Fun} = parse_plugin_config(Config), - %Fun(), - io:format("Started ~n plugin ~p", [Name]) - end || Config <- filelib:wildcard("plugins/*/ebin/*.plugin")], + [Dir,Plugin|_] = string:tokens(Config,"/"), + BasePath = Dir ++ "/" ++ Plugin, + Path = BasePath ++ "/ebin", + true = code:add_path(Path), + Name = parse_plugin_config(Config), + EnvConfig = BasePath ++ "/" ++ atom_to_list(Name) ++ ".cfg", + {ok, Terms} = file:consult(EnvConfig), + Name:start_plugin(Terms), + io:format("Started ~p plugin ~n", [Name]) + end || Config <- filelib:wildcard("plugins/*/*.plugin")], ok end. parse_plugin_config(File) -> case file:consult(File) of - {ok, [{plugin, Name, [{startup_function, {M, F, A}}, {env, Env}]}]} -> - {Name, M:F(A)}; + {ok, [{plugin, Name}]} -> + Name; _ -> error end. -- cgit v1.2.1 From 834fa2e79fe03623ee4f75e870d07cb076754c85 Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Thu, 9 Jul 2009 18:05:52 +0100 Subject: Now this uses OTP apps for the plugins --- scripts/rabbitmq-server | 4 +++ src/rabbit.erl | 75 +++++++++++++++++++++++++------------------------ 2 files changed, 42 insertions(+), 37 deletions(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 8502d60a..cc619b5c 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -80,6 +80,10 @@ RABBITMQ_START_RABBIT= # there is no other way of preventing their expansion. set -f +% This puts the plugins directory on the load path +% This does not seem to work with the -pa flag +export ERL_LIBS=$ERL_LIBS:plugins:plugins/lib + exec erl \ -pa "`dirname $0`/../ebin" \ ${RABBITMQ_START_RABBIT} \ diff --git a/src/rabbit.erl b/src/rabbit.erl index 5b9783e0..218e6f9c 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -75,7 +75,8 @@ start() -> try ok = ensure_working_log_handlers(), ok = rabbit_mnesia:ensure_mnesia_dir(), - ok = rabbit_misc:start_applications(?APPS) + ok = rabbit_misc:start_applications(?APPS), + ok = start_plugins() after %%give the error loggers some time to catch up timer:sleep(100) @@ -174,10 +175,6 @@ start(normal, []) -> ok = rabbit_networking:start_tcp_listener(Host, Port) end, TCPListeners) - end}, - {"plugins", - fun () -> - ok = start_plugins() end}] ++ ExtraSteps), @@ -294,38 +291,42 @@ start_builtin_amq_applications() -> %% Loads shared libraries and plugins that exist in the plugin dir start_plugins() -> - PluginsDir = "plugins", - case filelib:is_dir(PluginsDir) of - false -> ok; - true -> - LibDir = PluginsDir ++ "/lib", - case filelib:is_dir(LibDir) of - false -> ok; - true -> - [begin - [WithoutExtension|_] = string:tokens(Path, "."), - {module,_} = code:load_abs(WithoutExtension) - end || Path <- filelib:wildcard(LibDir ++ "/*/ebin/*.beam")] - end, - [begin - [Dir,Plugin|_] = string:tokens(Config,"/"), - BasePath = Dir ++ "/" ++ Plugin, - Path = BasePath ++ "/ebin", - true = code:add_path(Path), - Name = parse_plugin_config(Config), - EnvConfig = BasePath ++ "/" ++ atom_to_list(Name) ++ ".cfg", - {ok, Terms} = file:consult(EnvConfig), - Name:start_plugin(Terms), - io:format("Started ~p plugin ~n", [Name]) - end || Config <- filelib:wildcard("plugins/*/*.plugin")], - ok - end. - -parse_plugin_config(File) -> - case file:consult(File) of - {ok, [{plugin, Name}]} -> - Name; - _ -> + io:format("~nstarting plugins...~n"), + [begin + [_Dir,Plugin|_] = string:tokens(Config,"/."), + case parse_plugin_config(Plugin) of + ok -> + case application:start(list_to_atom(Plugin)) of + {error, Reason} -> + rabbit_log:error("Error starting ~p plugin: " + "~p~n", [Plugin, Reason]); + _ -> + io:format("...started ~p plugin ~n", [Plugin]) + end; + _ -> ok + end + end || Config <- filelib:wildcard("plugins/*.ez")], + io:format("...done~n"). + +%% TODO Think of something better than this name, probablt somewhere in /etc +-define(PLUGIN_CONF_DIR, "plugins"). + +parse_plugin_config(Plugin) -> + Atom = list_to_atom(Plugin), + Conf = ?PLUGIN_CONF_DIR ++ "/" ++ Plugin ++ ".cfg", + case file:consult(Conf) of + {ok, Terms} -> + lists:foreach(fun({K,V}) -> + application:set_env(Atom, K, V) + end, Terms), + ok; + {error, enoent} -> + rabbit_log:warning("Could not locate a config file for the ~p " + "plugin, this might be normal though~n", [Atom]), + ok; + {error, _} -> + rabbit_log:error("Error accessing config file for ~p + plugin, ", [Atom]), error end. -- cgit v1.2.1 From 36c313c0ff001d212bf3b8dc4c207bcc4bbcd090 Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Sun, 12 Jul 2009 13:30:09 +0100 Subject: Added plugin loader module --- src/rabbit.erl | 43 +-------------------- src/rabbit_plugin.erl | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 102 insertions(+), 42 deletions(-) create mode 100644 src/rabbit_plugin.erl diff --git a/src/rabbit.erl b/src/rabbit.erl index 218e6f9c..8b4725b8 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -76,7 +76,7 @@ start() -> ok = ensure_working_log_handlers(), ok = rabbit_mnesia:ensure_mnesia_dir(), ok = rabbit_misc:start_applications(?APPS), - ok = start_plugins() + ok = rabbit_plugin:start_plugins() after %%give the error loggers some time to catch up timer:sleep(100) @@ -289,47 +289,6 @@ start_builtin_amq_applications() -> %%restart ok. -%% Loads shared libraries and plugins that exist in the plugin dir -start_plugins() -> - io:format("~nstarting plugins...~n"), - [begin - [_Dir,Plugin|_] = string:tokens(Config,"/."), - case parse_plugin_config(Plugin) of - ok -> - case application:start(list_to_atom(Plugin)) of - {error, Reason} -> - rabbit_log:error("Error starting ~p plugin: " - "~p~n", [Plugin, Reason]); - _ -> - io:format("...started ~p plugin ~n", [Plugin]) - end; - _ -> ok - end - end || Config <- filelib:wildcard("plugins/*.ez")], - io:format("...done~n"). - -%% TODO Think of something better than this name, probablt somewhere in /etc --define(PLUGIN_CONF_DIR, "plugins"). - -parse_plugin_config(Plugin) -> - Atom = list_to_atom(Plugin), - Conf = ?PLUGIN_CONF_DIR ++ "/" ++ Plugin ++ ".cfg", - case file:consult(Conf) of - {ok, Terms} -> - lists:foreach(fun({K,V}) -> - application:set_env(Atom, K, V) - end, Terms), - ok; - {error, enoent} -> - rabbit_log:warning("Could not locate a config file for the ~p " - "plugin, this might be normal though~n", [Atom]), - ok; - {error, _} -> - rabbit_log:error("Error accessing config file for ~p - plugin, ", [Atom]), - error - end. - rotate_logs(File, Suffix, Handler) -> rotate_logs(File, Suffix, Handler, Handler). diff --git a/src/rabbit_plugin.erl b/src/rabbit_plugin.erl new file mode 100644 index 00000000..63599eb7 --- /dev/null +++ b/src/rabbit_plugin.erl @@ -0,0 +1,101 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_plugin). + +-export([start_plugins/0]). + +%% TODO Think of something better than this name, probablt somewhere in /etc +-define(PLUGIN_CONF_DIR, "plugins"). + + +%% Loads shared libraries and plugins that exist in the plugin dir +start_plugins() -> + io:format("~nstarting plugins...~n"), + [begin + [_Dir,PluginString|_] = string:tokens(Config,"/."), + Plugin = list_to_atom(PluginString), + case parse_plugin_config(PluginString) of + ok -> + ensure_dependencies(Plugin), + case application:start(Plugin) of + {error, Reason} -> + rabbit_log:error("Error starting ~p plugin: " + "~p~n", [Plugin, Reason]); + _ -> + io:format("...started ~p plugin ~n", [Plugin]) + end; + _ -> ok + end + end || Config <- filelib:wildcard("plugins/*.ez")], + io:format("...done~n"). + +%% Reads the application descriptor and makes sure all of the applications +%% it depends on are loaded +ensure_dependencies(Plugin) when is_atom(Plugin)-> + case application:load(Plugin) of + ok -> ok; + {error, {already_loaded, Plugin}} -> ok; + {error, Reason} -> + rabbit_log:error("Error loading descriptor for ~p plugin: " + "~p~n", [Plugin, Reason]) + end, + io:format("0 ~p~n",[Plugin]), + io:format("0/1 ~p~n",[application:get_key(mod_http,applications)]), + + {ok, Required} = application:get_key(Plugin, applications), + + io:format("1 ~p~n",[Required]), + {Running, _, _} = lists:unzip3(application:which_applications()), + io:format("2 ~p~n",[Running]), + [case lists:member(App, Running) of + true -> ok; + false -> application:start(App) + end || App <- Required]. + +parse_plugin_config(Plugin) when is_list(Plugin)-> + Atom = list_to_atom(Plugin), + Conf = ?PLUGIN_CONF_DIR ++ "/" ++ Plugin ++ ".cfg", + case file:consult(Conf) of + {ok, Terms} -> + lists:foreach(fun({K,V}) -> + application:set_env(Atom, K, V) + end, Terms), + ok; + {error, enoent} -> + rabbit_log:warning("Could not locate a config file for the ~p " + "plugin, this might be normal though~n", [Atom]), + ok; + {error, _} -> + rabbit_log:error("Error accessing config file for ~p + plugin, ", [Atom]), + error + end. -- cgit v1.2.1 From a3aa28d0fce924b54cbd3b26c8a4df4abdb9f99c Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Sun, 12 Jul 2009 13:32:49 +0100 Subject: Nuked debug statements --- src/rabbit_plugin.erl | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/src/rabbit_plugin.erl b/src/rabbit_plugin.erl index 63599eb7..3d505f4f 100644 --- a/src/rabbit_plugin.erl +++ b/src/rabbit_plugin.erl @@ -67,15 +67,9 @@ ensure_dependencies(Plugin) when is_atom(Plugin)-> {error, Reason} -> rabbit_log:error("Error loading descriptor for ~p plugin: " "~p~n", [Plugin, Reason]) - end, - io:format("0 ~p~n",[Plugin]), - io:format("0/1 ~p~n",[application:get_key(mod_http,applications)]), - + end, {ok, Required} = application:get_key(Plugin, applications), - - io:format("1 ~p~n",[Required]), {Running, _, _} = lists:unzip3(application:which_applications()), - io:format("2 ~p~n",[Running]), [case lists:member(App, Running) of true -> ok; false -> application:start(App) -- cgit v1.2.1 From 29f990714ff80995c52aa5492b2235dd71d39955 Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Sun, 12 Jul 2009 14:58:21 +0100 Subject: Exits if the app descriptor cannot be loaded --- src/rabbit_plugin.erl | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/rabbit_plugin.erl b/src/rabbit_plugin.erl index 3d505f4f..ede7abcf 100644 --- a/src/rabbit_plugin.erl +++ b/src/rabbit_plugin.erl @@ -66,8 +66,9 @@ ensure_dependencies(Plugin) when is_atom(Plugin)-> {error, {already_loaded, Plugin}} -> ok; {error, Reason} -> rabbit_log:error("Error loading descriptor for ~p plugin: " - "~p~n", [Plugin, Reason]) - end, + "~p~n", [Plugin, Reason]), + exit(plugin_not_loadable) + end, {ok, Required} = application:get_key(Plugin, applications), {Running, _, _} = lists:unzip3(application:which_applications()), [case lists:member(App, Running) of -- cgit v1.2.1 From e22f30f671398b48b0cb5265f2323b11bfae1e6e Mon Sep 17 00:00:00 2001 From: Ben Hood <0x6e6562@gmail.com> Date: Wed, 15 Jul 2009 14:39:33 +0100 Subject: Added a single shot function that can be specified in an OTP app descriptor that doesn't otherwise need to run a process --- src/rabbit_plugin.erl | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/src/rabbit_plugin.erl b/src/rabbit_plugin.erl index ede7abcf..3064817f 100644 --- a/src/rabbit_plugin.erl +++ b/src/rabbit_plugin.erl @@ -74,7 +74,19 @@ ensure_dependencies(Plugin) when is_atom(Plugin)-> [case lists:member(App, Running) of true -> ok; false -> application:start(App) - end || App <- Required]. + end || App <- Required], + run_one_shot(Plugin). + +%% This allows an OTP to run a single shot function that it +%% specifies in it's descriptor without having to run a process +run_one_shot(Plugin) -> + case application:get_env(Plugin, one_shot) of + {ok, {M,F,A}} -> M:F(A); + undefined -> ok; + X -> + rabbit_log:error("Error loading one shot for ~p plugin: " + "~p~n", [Plugin, X]) + end. parse_plugin_config(Plugin) when is_list(Plugin)-> Atom = list_to_atom(Plugin), -- cgit v1.2.1 From af140d2c7f0f207916176d701056da42e81b9737 Mon Sep 17 00:00:00 2001 From: Vlad Ionescu Date: Thu, 23 Jul 2009 19:04:36 +0100 Subject: adding possibility to specify different load path (in order to load other apps as well at the same time) in makefile and startup scripts --- Makefile | 6 ++++-- scripts/rabbitmq-server | 3 ++- scripts/rabbitmq-server.bat | 5 ++++- 3 files changed, 10 insertions(+), 4 deletions(-) diff --git a/Makefile b/Makefile index 9c372a28..03105c94 100644 --- a/Makefile +++ b/Makefile @@ -6,6 +6,7 @@ RABBITMQ_NODENAME=rabbit RABBITMQ_SERVER_START_ARGS= RABBITMQ_MNESIA_DIR=$(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia RABBITMQ_LOG_BASE=$(TMPDIR) +RABBITMQ_LOAD_PATH=ebin SOURCE_DIR=src EBIN_DIR=ebin @@ -81,12 +82,13 @@ BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\ RABBITMQ_NODE_IP_ADDRESS="$(RABBITMQ_NODE_IP_ADDRESS)" \ RABBITMQ_NODE_PORT="$(RABBITMQ_NODE_PORT)" \ RABBITMQ_LOG_BASE="$(RABBITMQ_LOG_BASE)" \ - RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" + RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" \ + RABBITMQ_LOAD_PATH="$(RABBITMQ_LOAD_PATH)" run: all $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -s rabbit" \ + RABBITMQ_SERVER_START_ARGS="-s rabbit $(RABBITMQ_SERVER_START_ARGS)" \ ./scripts/rabbitmq-server run-node: all diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 8502d60a..afefd6e7 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -48,6 +48,7 @@ SERVER_START_ARGS= [ "x" = "x$RABBITMQ_NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} [ "x" = "x$RABBITMQ_SERVER_ERL_ARGS" ] && RABBITMQ_SERVER_ERL_ARGS=${SERVER_ERL_ARGS} [ "x" = "x$RABBITMQ_CLUSTER_CONFIG_FILE" ] && RABBITMQ_CLUSTER_CONFIG_FILE=${CLUSTER_CONFIG_FILE} +[ "x" = "x$RABBITMQ_LOAD_PATH" ] && RABBITMQ_LOAD_PATH="`dirname $0`/../ebin" [ "x" = "x$RABBITMQ_LOG_BASE" ] && RABBITMQ_LOG_BASE=${LOG_BASE} [ "x" = "x$RABBITMQ_MNESIA_BASE" ] && RABBITMQ_MNESIA_BASE=${MNESIA_BASE} [ "x" = "x$RABBITMQ_SERVER_START_ARGS" ] && RABBITMQ_SERVER_START_ARGS=${SERVER_START_ARGS} @@ -81,7 +82,7 @@ RABBITMQ_START_RABBIT= set -f exec erl \ - -pa "`dirname $0`/../ebin" \ + -pa ${RABBITMQ_LOAD_PATH} \ ${RABBITMQ_START_RABBIT} \ -sname ${RABBITMQ_NODENAME} \ -boot start_sasl \ diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 9915727b..2ad55a2d 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -70,6 +70,9 @@ if "%RABBITMQ_MNESIA_BASE%"=="" ( if "%RABBITMQ_LOG_BASE%"=="" ( set RABBITMQ_LOG_BASE=%RABBITMQ_BASE_UNIX%/log ) +if "%RABBITMQ_LOAD_PATH%"=="" ( + set RABBITMQ_LOAD_PATH=%~dp0..\ebin +) rem We save the previous logs in their respective backup @@ -106,7 +109,7 @@ if "%RABBITMQ_MNESIA_DIR%"=="" ( ) "%ERLANG_HOME%\bin\erl.exe" ^ --pa "%~dp0..\ebin" ^ +-pa %RABBITMQ_LOAD_PATH% ^ -noinput ^ -boot start_sasl ^ -sname %RABBITMQ_NODENAME% ^ -- cgit v1.2.1 From a9fdab64a42cbcfe69b9afbbb014cc4d61b95844 Mon Sep 17 00:00:00 2001 From: Paul Jones Date: Thu, 6 Aug 2009 11:03:43 +0100 Subject: QA updates and compatibility updates. Moved presence emit for queue.declare to rabbit_amqqueue:declare to stop presence being fired when durable queues are restored. Corrected compatibility with the latest rabbit_exchange API. --- src/rabbit_amqqueue.erl | 1 + src/rabbit_amqqueue_process.erl | 1 - src/rabbit_misc.erl | 16 ++++++++++++++-- 3 files changed, 15 insertions(+), 3 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 4903c2c5..9b2db7da 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -157,6 +157,7 @@ declare(QueueName, Durable, AutoDelete, Args) -> auto_delete = AutoDelete, arguments = Args, pid = none}), + rabbit_misc:emit_presence(QueueName, <<"startup">>), internal_declare(Q, true). internal_declare(Q = #amqqueue{name = QueueName}, WantDefaultBinding) -> diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index e27af39d..d09c7d5f 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -102,7 +102,6 @@ init(Q) -> message_buffer = queue:new(), active_consumers = queue:new(), blocked_consumers = queue:new()}, - rabbit_misc:emit_presence(qname(NewState), <<"startup">>), {ok, NewState, ?HIBERNATE_AFTER}. terminate(_Reason, State) -> diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 6649d576..686cabdc 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -396,8 +396,20 @@ emit_presence(Resource = #resource{kind = KindAtom, name = InstanceBin}, RK = list_to_binary(["presence.", ClassBin, ".", escape_routing_key(InstanceBin), ".", EventBin]), - _Ignored = rabbit_exchange:simple_publish( - false, false, XName, RK, undefined, <<>>), + {ClassId, _MethodId} = rabbit_framing:method_id('basic.publish'), + Content = #content{class_id = ClassId, + properties = #'P_basic'{}, + properties_bin = none, + payload_fragments_rev = [<<>>]}, + Message = #basic_message{exchange_name = XName, + routing_key = RK, + content = Content}, + _Ignored = case rabbit_exchange:lookup(XName) of + {ok, Exchange} -> + rabbit_exchange:publish(Exchange, + #delivery{message = Message}); + {error, Error} -> {error, Error} + end, ok. append_file(File, Suffix) -> -- cgit v1.2.1 From 93d4870776aa4f8a8b6208e408743956d7c337b3 Mon Sep 17 00:00:00 2001 From: Paul Jones Date: Thu, 6 Aug 2009 12:10:03 +0100 Subject: Simplified message construction --- src/rabbit_misc.erl | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 686cabdc..66108c33 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -396,18 +396,12 @@ emit_presence(Resource = #resource{kind = KindAtom, name = InstanceBin}, RK = list_to_binary(["presence.", ClassBin, ".", escape_routing_key(InstanceBin), ".", EventBin]), - {ClassId, _MethodId} = rabbit_framing:method_id('basic.publish'), - Content = #content{class_id = ClassId, - properties = #'P_basic'{}, - properties_bin = none, - payload_fragments_rev = [<<>>]}, - Message = #basic_message{exchange_name = XName, - routing_key = RK, - content = Content}, + Body = list_to_binary([EventBin, ".", escape_routing_key(InstanceBin)]), + Message = rabbit_basic:message(XName, RK, #'P_basic'{}, Body), + Delivery = rabbit_basic:delivery(false, false, none, Message), _Ignored = case rabbit_exchange:lookup(XName) of {ok, Exchange} -> - rabbit_exchange:publish(Exchange, - #delivery{message = Message}); + rabbit_exchange:publish(Exchange, Delivery); {error, Error} -> {error, Error} end, ok. -- cgit v1.2.1 From ffcfa9ea66c6d47e50baaab83a4b593214d7cc02 Mon Sep 17 00:00:00 2001 From: Paul Jones Date: Thu, 6 Aug 2009 14:07:16 +0100 Subject: Implemented generic hook mechanism; changed presence to use this instead of direct calls --- src/rabbit.erl | 2 + src/rabbit_access_control.erl | 4 +- src/rabbit_amqqueue.erl | 2 +- src/rabbit_amqqueue_process.erl | 2 +- src/rabbit_hooks.erl | 95 +++++++++++++++++++++++++++++++ src/rabbit_misc.erl | 33 ----------- src/rabbit_presence.erl | 122 ++++++++++++++++++++++++++++++++++++++++ 7 files changed, 223 insertions(+), 37 deletions(-) create mode 100644 src/rabbit_hooks.erl create mode 100644 src/rabbit_presence.erl diff --git a/src/rabbit.erl b/src/rabbit.erl index 196212ea..8491e7fe 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -142,6 +142,8 @@ start(normal, []) -> ok = rabbit_binary_generator: check_empty_content_body_frame_size(), + ok = start_child(rabbit_hooks), + ok = start_child(rabbit_presence), ok = start_child(rabbit_router), ok = start_child(rabbit_node_monitor) end}, diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl index 84ca3d3f..8a2ec63b 100644 --- a/src/rabbit_access_control.erl +++ b/src/rabbit_access_control.erl @@ -247,8 +247,8 @@ add_vhost(VHostPath) -> {<<"amq.topic">>, topic}, {<<"amq.match">>, headers}, %% per 0-9-1 pdf {<<"amq.headers">>, headers}, %% per 0-9-1 xml - {<<"amq.fanout">>, fanout}, - {<<"amq.rabbitmq.presence">>, topic}]], + {<<"amq.fanout">>, fanout}]], + rabbit_hooks:trigger(vhost_create, [VHostPath]), ok; [_] -> mnesia:abort({vhost_already_exists, VHostPath}) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 9b2db7da..44e55a06 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -157,7 +157,7 @@ declare(QueueName, Durable, AutoDelete, Args) -> auto_delete = AutoDelete, arguments = Args, pid = none}), - rabbit_misc:emit_presence(QueueName, <<"startup">>), + rabbit_hooks:trigger(queue_startup, [QueueName]), internal_declare(Q, true). internal_declare(Q = #amqqueue{name = QueueName}, WantDefaultBinding) -> diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index d09c7d5f..8b62dac7 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -105,7 +105,7 @@ init(Q) -> {ok, NewState, ?HIBERNATE_AFTER}. terminate(_Reason, State) -> - rabbit_misc:emit_presence(qname(State), <<"shutdown">>), + rabbit_hooks:trigger(queue_shutdown, [qname(State)]), %% FIXME: How do we cancel active subscriptions? QName = qname(State), lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, diff --git a/src/rabbit_hooks.erl b/src/rabbit_hooks.erl new file mode 100644 index 00000000..a19bf3c6 --- /dev/null +++ b/src/rabbit_hooks.erl @@ -0,0 +1,95 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_hooks). + +-behaviour(gen_server). + +-export([start_link/0]). +-export([subscribe/2, unsubscribe/2, trigger/2]). +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, + code_change/3]). + +-define(TableName, rabbit_hooks). + +start_link() -> + gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). + +subscribe(Hook, Handler) -> + gen_server:call(?MODULE, {add_hook, Hook, Handler}). + +unsubscribe(Hook, Handler) -> + gen_server:call(?MODULE, {remove_hook, Hook, Handler}). + +trigger(Hook, Args) -> + Hooks = get_current_hooks(Hook), + [catch H(Args) || H <- Hooks], + ok. + + +%% Gen Server Implementation +init([]) -> + ets:new(?TableName, [named_table]), + {ok, []}. + +handle_call({add_hook, Hook, Handler}, _, State) -> + Current = get_current_hooks(Hook), + Updated = Current ++ [Handler], + ets:insert(?TableName, {Hook, Updated}), + {reply, ok, State}; + +handle_call({remove_hook, Hook, Handler}, _, State) -> + Current = get_current_hooks(Hook), + Updated = [H || H <- Current, not(H == Handler)], + ets:insert(?TableName, {Hook, Updated}), + {reply, ok, State}; + +handle_call(_, _, State) -> + {reply, ok, State}. + +handle_cast(_, State) -> + {noreply, State}. + +handle_info(_, State) -> + {noreply, State}. + +terminate(_, _) -> + ok. + +code_change(_, State, _) -> + {ok, State}. + +%% Helper Methods +get_current_hooks(Hook) -> + case ets:lookup(?TableName, Hook) of + [] -> []; + [{Hook, C}] -> C + end. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 66108c33..599f06c9 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -50,7 +50,6 @@ -export([intersperse/2, upmap/2, map_in_order/2]). -export([table_foreach/2]). -export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). --export([escape_routing_key/1, emit_presence/2]). -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). @@ -374,38 +373,6 @@ dirty_dump_log1(LH, {K, Terms, BadBytes}) -> io:format("Bad Chunk, ~p: ~p~n", [BadBytes, Terms]), dirty_dump_log1(LH, disk_log:chunk(LH, K)). -escape_routing_key(K) when is_binary(K) -> - list_to_binary(escape_routing_key1(binary_to_list(K))). - -escape_routing_key1([]) -> - []; -escape_routing_key1([Ch | Rest]) -> - Tail = escape_routing_key1(Rest), - case Ch of - $# -> "%23" ++ Tail; - $% -> "%25" ++ Tail; - $* -> "%2a" ++ Tail; - $. -> "%2e" ++ Tail; - _ -> [Ch | Tail] - end. - -emit_presence(Resource = #resource{kind = KindAtom, name = InstanceBin}, - EventBin) -> - ClassBin = list_to_binary(atom_to_list(KindAtom)), - XName = r(Resource, exchange, <<"amq.rabbitmq.presence">>), - RK = list_to_binary(["presence.", ClassBin, - ".", escape_routing_key(InstanceBin), - ".", EventBin]), - Body = list_to_binary([EventBin, ".", escape_routing_key(InstanceBin)]), - Message = rabbit_basic:message(XName, RK, #'P_basic'{}, Body), - Delivery = rabbit_basic:delivery(false, false, none, Message), - _Ignored = case rabbit_exchange:lookup(XName) of - {ok, Exchange} -> - rabbit_exchange:publish(Exchange, Delivery); - {error, Error} -> {error, Error} - end, - ok. - append_file(File, Suffix) -> case file:read_file_info(File) of {ok, FInfo} -> append_file(File, FInfo#file_info.size, Suffix); diff --git a/src/rabbit_presence.erl b/src/rabbit_presence.erl new file mode 100644 index 00000000..966b75d2 --- /dev/null +++ b/src/rabbit_presence.erl @@ -0,0 +1,122 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_presence). + +-behaviour(gen_server). + +-include("rabbit.hrl"). +-include("rabbit_framing.hrl"). + +-export([start_link/0]). +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, + code_change/3]). + +start_link() -> + gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). + + +%% Gen Server Implementation +init([]) -> + attach(sync, vhost_create), + attach(async, [queue_startup, queue_shutdown]), + {ok, []}. + +handle_call({vhost_create, [VHostPath]}, _, State) -> + rabbit_exchange:declare(rabbit_misc:r(VHostPath, exchange, + <<"amq.rabbitmq.presence">>), + topic, true, false, []), + {reply, ok, State}; + +handle_call(_, _, State) -> + {reply, ok, State}. + +handle_cast({queue_startup, [QName = #resource{}]}, State) -> + emit_presence(QName, <<"startup">>), + {noreply, State}; +handle_cast({queue_shutdown, [QName = #resource{}]}, State) -> + emit_presence(QName, <<"shutdown">>), + {noreply, State}; +handle_cast(_Msg, State) -> + io:format("Unknown cast ~p~n", [_Msg]), + {noreply, State}. + +handle_info(_, State) -> + {noreply, State}. + +terminate(_, _) -> + ok. + +code_change(_, State, _) -> + {ok, State}. + +%% Helper Methods +attach(InvokeMethod, Hooks) when is_list(Hooks) -> + [attach(InvokeMethod, Hook) || Hook <- Hooks]; +attach(InvokeMethod, HookName) when is_atom(HookName) -> + rabbit_hooks:subscribe(HookName, handler(InvokeMethod, HookName)). + +handler(async, HookName) -> + fun(Args) -> gen_server:cast(?MODULE, {HookName, Args}) end; +handler(sync, HookName) -> + fun(Args) -> gen_server:call(?MODULE, {HookName, Args}) end. + +escape_for_routing_key(K) when is_binary(K) -> + list_to_binary(escape_for_routing_key1(binary_to_list(K))). + +escape_for_routing_key1([]) -> + []; +escape_for_routing_key1([Ch | Rest]) -> + Tail = escape_for_routing_key1(Rest), + case Ch of + $# -> "%23" ++ Tail; + $% -> "%25" ++ Tail; + $* -> "%2a" ++ Tail; + $. -> "%2e" ++ Tail; + _ -> [Ch | Tail] + end. + +emit_presence(Resource = #resource{kind = KindAtom, name = InstanceBin}, + EventBin) -> + ClassBin = list_to_binary(atom_to_list(KindAtom)), + XName = rabbit_misc:r(Resource, exchange, <<"amq.rabbitmq.presence">>), + EscapedInstance = escape_for_routing_key(InstanceBin), + RK = list_to_binary(["presence.", ClassBin, ".", EscapedInstance, + ".", EventBin]), + Body = list_to_binary([ClassBin, ".", EventBin, ".", EscapedInstance]), + Message = rabbit_basic:message(XName, RK, #'P_basic'{}, Body), + Delivery = rabbit_basic:delivery(false, false, none, Message), + _Ignored = case rabbit_exchange:lookup(XName) of + {ok, Exchange} -> + rabbit_exchange:publish(Exchange, Delivery); + {error, Error} -> {error, Error} + end, + ok. -- cgit v1.2.1 From c3cdd6a56ed1b1b9114265c6d96f731d5c5ac825 Mon Sep 17 00:00:00 2001 From: Paul Jones Date: Thu, 6 Aug 2009 14:35:48 +0100 Subject: Renamed queue_startup to queue_create; started hooks for bindings --- src/rabbit_amqqueue.erl | 2 +- src/rabbit_amqqueue_process.erl | 2 +- src/rabbit_exchange.erl | 15 +++++++++++++-- src/rabbit_presence.erl | 13 ++++++++++--- 4 files changed, 25 insertions(+), 7 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 44e55a06..40978bb8 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -157,7 +157,7 @@ declare(QueueName, Durable, AutoDelete, Args) -> auto_delete = AutoDelete, arguments = Args, pid = none}), - rabbit_hooks:trigger(queue_startup, [QueueName]), + rabbit_hooks:trigger(queue_create, [QueueName]), internal_declare(Q, true). internal_declare(Q = #amqqueue{name = QueueName}, WantDefaultBinding) -> diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 8b62dac7..0ece1ff0 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -105,7 +105,7 @@ init(Q) -> {ok, NewState, ?HIBERNATE_AFTER}. terminate(_Reason, State) -> - rabbit_hooks:trigger(queue_shutdown, [qname(State)]), + rabbit_hooks:trigger(queue_delete, [qname(State)]), %% FIXME: How do we cancel active subscriptions? QName = qname(State), lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 8fb9eae3..1ca34b26 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -117,6 +117,7 @@ declare(ExchangeName, Type, Durable, AutoDelete, Args) -> durable = Durable, auto_delete = AutoDelete, arguments = Args}, + rabbit_hooks:trigger(exchange_create, [ExchangeName]), rabbit_misc:execute_mnesia_transaction( fun () -> case mnesia:wread({rabbit_exchange, ExchangeName}) of @@ -299,7 +300,9 @@ delete_exchange_bindings(ExchangeName) -> [begin ok = mnesia:delete_object(rabbit_reverse_route, reverse_route(Route), write), - ok = delete_forward_routes(Route) + ok = delete_forward_routes(Route), + #route{binding = B} = Route, + trigger_delete_binding_hook(B) end || Route <- mnesia:match_object( rabbit_route, #route{binding = #binding{exchange_name = ExchangeName, @@ -390,7 +393,9 @@ add_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> true -> ok = sync_binding(B, Q#amqqueue.durable, fun mnesia:write/3) end - end). + end), + rabbit_hooks:trigger(binding_create, [ExchangeName, QueueName, + RoutingKey, Arguments]). delete_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> binding_action( @@ -401,6 +406,7 @@ delete_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> [] -> {error, binding_not_found}; _ -> ok = sync_binding(B, Q#amqqueue.durable, fun mnesia:delete_object/3), + trigger_delete_binding_hook(B), maybe_auto_delete(X) end end). @@ -581,9 +587,14 @@ conditional_delete(Exchange = #exchange{name = ExchangeName}) -> unconditional_delete(#exchange{name = ExchangeName}) -> ok = delete_exchange_bindings(ExchangeName), + rabbit_hooks:trigger(exchange_delete, [ExchangeName]), ok = mnesia:delete({rabbit_durable_exchange, ExchangeName}), ok = mnesia:delete({rabbit_exchange, ExchangeName}). +trigger_delete_binding_hook(#binding{queue_name = Q, exchange_name = X, + key = RK, args = Args}) -> + rabbit_hooks:trigger(binding_delete, [X, Q, RK, Args]). + %%---------------------------------------------------------------------------- %% EXTENDED API %% These are API calls that are not used by the server internally, diff --git a/src/rabbit_presence.erl b/src/rabbit_presence.erl index 966b75d2..7031f695 100644 --- a/src/rabbit_presence.erl +++ b/src/rabbit_presence.erl @@ -47,7 +47,8 @@ start_link() -> %% Gen Server Implementation init([]) -> attach(sync, vhost_create), - attach(async, [queue_startup, queue_shutdown]), + attach(async, [exchange_create, exchange_delete]), + attach(async, [queue_create, queue_delete]), {ok, []}. handle_call({vhost_create, [VHostPath]}, _, State) -> @@ -59,10 +60,16 @@ handle_call({vhost_create, [VHostPath]}, _, State) -> handle_call(_, _, State) -> {reply, ok, State}. -handle_cast({queue_startup, [QName = #resource{}]}, State) -> +handle_cast({queue_create, [QName = #resource{}]}, State) -> emit_presence(QName, <<"startup">>), {noreply, State}; -handle_cast({queue_shutdown, [QName = #resource{}]}, State) -> +handle_cast({queue_delete, [QName = #resource{}]}, State) -> + emit_presence(QName, <<"shutdown">>), + {noreply, State}; +handle_cast({exchange_create, [QName = #resource{}]}, State) -> + emit_presence(QName, <<"startup">>), + {noreply, State}; +handle_cast({exchange_delete, [QName = #resource{}]}, State) -> emit_presence(QName, <<"shutdown">>), {noreply, State}; handle_cast(_Msg, State) -> -- cgit v1.2.1 From fd4b12d5b423508654db395ff3b668934c895438 Mon Sep 17 00:00:00 2001 From: Paul Jones Date: Thu, 6 Aug 2009 15:09:30 +0100 Subject: Simplified the hooks module; moved many hooks to better places --- src/rabbit.erl | 2 +- src/rabbit_amqqueue.erl | 12 ++++++--- src/rabbit_amqqueue_process.erl | 1 - src/rabbit_exchange.erl | 17 ++++++++---- src/rabbit_hooks.erl | 59 ++++++----------------------------------- 5 files changed, 29 insertions(+), 62 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 8491e7fe..e149130b 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -134,6 +134,7 @@ start(normal, []) -> fun () -> ok = start_child(rabbit_log), + ok = rabbit_hooks:start(), ok = rabbit_amqqueue:start(), {ok, MemoryAlarms} = application:get_env(memory_alarms), @@ -142,7 +143,6 @@ start(normal, []) -> ok = rabbit_binary_generator: check_empty_content_body_frame_size(), - ok = start_child(rabbit_hooks), ok = start_child(rabbit_presence), ok = start_child(rabbit_router), ok = start_child(rabbit_node_monitor) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 40978bb8..c8fa0d60 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -157,7 +157,6 @@ declare(QueueName, Durable, AutoDelete, Args) -> auto_delete = AutoDelete, arguments = Args, pid = none}), - rabbit_hooks:trigger(queue_create, [QueueName]), internal_declare(Q, true). internal_declare(Q = #amqqueue{name = QueueName}, WantDefaultBinding) -> @@ -173,7 +172,8 @@ internal_declare(Q = #amqqueue{name = QueueName}, WantDefaultBinding) -> [ExistingQ] -> ExistingQ end end) of - Q -> Q; + Q -> rabbit_hooks:trigger(queue_create, [QueueName]), + Q; ExistingQ -> exit(Q#amqqueue.pid, shutdown), ExistingQ end. @@ -310,7 +310,7 @@ unblock(QPid, ChPid) -> gen_server2:cast(QPid, {unblock, ChPid}). internal_delete(QueueName) -> - rabbit_misc:execute_mnesia_transaction( + case rabbit_misc:execute_mnesia_transaction( fun () -> case mnesia:wread({rabbit_queue, QueueName}) of [] -> {error, not_found}; @@ -320,7 +320,11 @@ internal_delete(QueueName) -> ok = mnesia:delete({rabbit_durable_queue, QueueName}), ok end - end). + end) of + ok -> rabbit_hooks:trigger(queue_delete, [QueueName]), + ok; + Error -> Error + end. on_node_down(Node) -> rabbit_misc:execute_mnesia_transaction( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 0ece1ff0..15be5b6e 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -105,7 +105,6 @@ init(Q) -> {ok, NewState, ?HIBERNATE_AFTER}. terminate(_Reason, State) -> - rabbit_hooks:trigger(queue_delete, [qname(State)]), %% FIXME: How do we cancel active subscriptions? QName = qname(State), lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 1ca34b26..81799d1b 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -117,8 +117,7 @@ declare(ExchangeName, Type, Durable, AutoDelete, Args) -> durable = Durable, auto_delete = AutoDelete, arguments = Args}, - rabbit_hooks:trigger(exchange_create, [ExchangeName]), - rabbit_misc:execute_mnesia_transaction( + case rabbit_misc:execute_mnesia_transaction( fun () -> case mnesia:wread({rabbit_exchange, ExchangeName}) of [] -> ok = mnesia:write(rabbit_exchange, Exchange, write), @@ -127,10 +126,16 @@ declare(ExchangeName, Type, Durable, AutoDelete, Args) -> Exchange, write); true -> ok end, - Exchange; - [ExistingX] -> ExistingX + {ok, Exchange}; + [ExistingX] -> {existing, ExistingX} end - end). + end) of + {ok, X} -> + rabbit_hooks:trigger(exchange_create, [ExchangeName]), + X; + {existing, X} -> + X + end. check_type(<<"fanout">>) -> fanout; @@ -394,6 +399,7 @@ add_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> fun mnesia:write/3) end end), + %% TODO: Need to check if a binding is already there rabbit_hooks:trigger(binding_create, [ExchangeName, QueueName, RoutingKey, Arguments]). @@ -406,6 +412,7 @@ delete_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> [] -> {error, binding_not_found}; _ -> ok = sync_binding(B, Q#amqqueue.durable, fun mnesia:delete_object/3), + %% TODO: Move outside of the tx trigger_delete_binding_hook(B), maybe_auto_delete(X) end diff --git a/src/rabbit_hooks.erl b/src/rabbit_hooks.erl index a19bf3c6..2afae963 100644 --- a/src/rabbit_hooks.erl +++ b/src/rabbit_hooks.erl @@ -31,65 +31,22 @@ -module(rabbit_hooks). --behaviour(gen_server). - --export([start_link/0]). +-export([start/0]). -export([subscribe/2, unsubscribe/2, trigger/2]). --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). -define(TableName, rabbit_hooks). -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). +start() -> + ets:new(?TableName, [bag, public, named_table]), + ok. subscribe(Hook, Handler) -> - gen_server:call(?MODULE, {add_hook, Hook, Handler}). + ets:insert(?TableName, {Hook, Handler}). unsubscribe(Hook, Handler) -> - gen_server:call(?MODULE, {remove_hook, Hook, Handler}). + ets:delete_object(?TableName, {Hook, Handler}). trigger(Hook, Args) -> - Hooks = get_current_hooks(Hook), - [catch H(Args) || H <- Hooks], - ok. - - -%% Gen Server Implementation -init([]) -> - ets:new(?TableName, [named_table]), - {ok, []}. - -handle_call({add_hook, Hook, Handler}, _, State) -> - Current = get_current_hooks(Hook), - Updated = Current ++ [Handler], - ets:insert(?TableName, {Hook, Updated}), - {reply, ok, State}; - -handle_call({remove_hook, Hook, Handler}, _, State) -> - Current = get_current_hooks(Hook), - Updated = [H || H <- Current, not(H == Handler)], - ets:insert(?TableName, {Hook, Updated}), - {reply, ok, State}; - -handle_call(_, _, State) -> - {reply, ok, State}. - -handle_cast(_, State) -> - {noreply, State}. - -handle_info(_, State) -> - {noreply, State}. - -terminate(_, _) -> + Hooks = ets:lookup(?TableName, Hook), + [catch H(Args) || {_, H} <- Hooks], ok. - -code_change(_, State, _) -> - {ok, State}. - -%% Helper Methods -get_current_hooks(Hook) -> - case ets:lookup(?TableName, Hook) of - [] -> []; - [{Hook, C}] -> C - end. -- cgit v1.2.1 From 9c3a6d16a27948318d69f58fa956e925c25dd8e0 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 17 Aug 2009 16:55:33 +0100 Subject: reversed everything but the changes to memsup. To QA this, find the diff between this and the default rev a53ac6a45325 --- Makefile | 7 +- include/rabbit.hrl | 8 +- scripts/rabbitmq-server | 3 +- scripts/rabbitmq-server.bat | 3 +- scripts/rabbitmq-service.bat | 3 +- src/priority_queue.erl | 42 +- src/rabbit.erl | 16 +- src/rabbit_amqqueue.erl | 88 +- src/rabbit_amqqueue_process.erl | 568 +++++------ src/rabbit_basic.erl | 17 +- src/rabbit_channel.erl | 7 +- src/rabbit_control.erl | 22 +- src/rabbit_disk_queue.erl | 1973 ------------------------------------- src/rabbit_guid.erl | 22 +- src/rabbit_misc.erl | 40 +- src/rabbit_mixed_queue.erl | 596 ----------- src/rabbit_mnesia.erl | 93 +- src/rabbit_persister.erl | 523 ++++++++++ src/rabbit_queue_mode_manager.erl | 496 ---------- src/rabbit_queue_prefetcher.erl | 258 ----- src/rabbit_tests.erl | 582 +---------- 21 files changed, 900 insertions(+), 4467 deletions(-) delete mode 100644 src/rabbit_disk_queue.erl delete mode 100644 src/rabbit_mixed_queue.erl create mode 100644 src/rabbit_persister.erl delete mode 100644 src/rabbit_queue_mode_manager.erl delete mode 100644 src/rabbit_queue_prefetcher.erl diff --git a/Makefile b/Makefile index 05464ca1..c3b0c598 100644 --- a/Makefile +++ b/Makefile @@ -20,10 +20,10 @@ PYTHON=python ifndef USE_SPECS # our type specs rely on features / bug fixes in dialyzer that are -# only available in R13B upwards (R13B is eshell 5.7.1) +# only available in R12B-3 upwards # # NB: the test assumes that version number will only contain single digits -USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.0" ]; then echo "true"; else echo "false"; fi) +USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.6.2" ]; then echo "true"; else echo "false"; fi) endif #other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests @@ -101,8 +101,7 @@ run-tests: all start-background-node: $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server ; sleep 1 + ./scripts/rabbitmq-server -detached; sleep 1 start-rabbit-on-node: all echo "rabbit:start()." | $(ERL_CALL) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 0ba31cb5..784c21b3 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -62,10 +62,7 @@ -record(listener, {node, protocol, host, port}). --record(basic_message, {exchange_name, routing_key, content, - guid, is_persistent}). - --record(dq_msg_loc, {queue_and_seq_id, is_delivered, msg_id}). +-record(basic_message, {exchange_name, routing_key, content, persistent_key}). -record(delivery, {mandatory, immediate, txn, sender, message}). @@ -137,8 +134,7 @@ #basic_message{exchange_name :: exchange_name(), routing_key :: routing_key(), content :: content(), - guid :: guid(), - is_persistent :: bool()}). + persistent_key :: maybe(pkey())}). -type(message() :: basic_message()). -type(delivery() :: #delivery{mandatory :: bool(), diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index f802ec4c..547220b4 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -105,9 +105,8 @@ exec erl \ -os_mon start_memsup false \ -os_mon start_os_sup false \ -os_mon memsup_system_only true \ - -os_mon system_memory_high_watermark 0.8 \ + -os_mon system_memory_high_watermark 0.95 \ -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - -mnesia dump_log_write_threshold 10000 \ ${RABBITMQ_CLUSTER_CONFIG_OPTION} \ ${RABBITMQ_SERVER_START_ARGS} \ "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 3b6e4938..b4868841 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -134,9 +134,8 @@ if exist "%RABBITMQ_EBIN_ROOT%\rabbit.boot" ( -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat index 82aa4d5c..29be1742 100755 --- a/scripts/rabbitmq-service.bat +++ b/scripts/rabbitmq-service.bat @@ -175,9 +175,8 @@ set ERLANG_SERVICE_ARGUMENTS= ^ -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 0c777471..732757c4 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -55,8 +55,7 @@ -module(priority_queue). --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). +-export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, out/1]). %%---------------------------------------------------------------------------- @@ -73,8 +72,7 @@ -spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). -spec(in/2 :: (any(), pqueue()) -> pqueue()). -spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {(empty | {value, any()}), pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). +-spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). -endif. @@ -149,42 +147,6 @@ out({pqueue, [{P, Q} | Queues]}) -> end, {R, NewQ}. -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - r2f([]) -> {queue, [], []}; r2f([_] = R) -> {queue, [], R}; r2f([X,Y]) -> {queue, [X], [Y]}; diff --git a/src/rabbit.erl b/src/rabbit.erl index 88c60eb9..b0d62b5a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -139,8 +139,6 @@ start(normal, []) -> {ok, MemoryAlarms} = application:get_env(memory_alarms), ok = rabbit_alarm:start(MemoryAlarms), - - ok = start_child(rabbit_queue_mode_manager), ok = rabbit_binary_generator: check_empty_content_body_frame_size(), @@ -148,19 +146,15 @@ start(normal, []) -> ok = start_child(rabbit_router), ok = start_child(rabbit_node_monitor) end}, - {"disk queue", - fun () -> - ok = start_child(rabbit_disk_queue) - end}, {"recovery", fun () -> ok = maybe_insert_default_data(), ok = rabbit_exchange:recover(), - {ok, DurableQueues} = rabbit_amqqueue:recover(), - DurableQueueNames = - sets:from_list([ Q #amqqueue.name || Q <- DurableQueues ]), - ok = rabbit_disk_queue:delete_non_durable_queues( - DurableQueueNames) + ok = rabbit_amqqueue:recover() + end}, + {"persister", + fun () -> + ok = start_child(rabbit_persister) end}, {"guid generator", fun () -> diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 62ea465d..4903c2c5 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,6 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/3, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -63,7 +62,7 @@ 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). -spec(start/0 :: () -> 'ok'). --spec(recover/0 :: () -> {'ok', [amqqueue()]}). +-spec(recover/0 :: () -> 'ok'). -spec(declare/4 :: (queue_name(), bool(), bool(), amqp_table()) -> amqqueue()). -spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). @@ -102,13 +101,10 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). --spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). --spec(report_memory/1 :: (pid()) -> 'ok'). -endif. @@ -123,42 +119,37 @@ start() -> ok. recover() -> - {ok, DurableQueues} = recover_durable_queues(), - {ok, DurableQueues}. + ok = recover_durable_queues(), + ok. recover_durable_queues() -> Node = node(), - DurableQueues = - lists:foldl( - fun (RecoveredQ, Acc) -> - Q = start_queue_process(RecoveredQ), - %% We need to catch the case where a client connected to - %% another node has deleted the queue (and possibly - %% re-created it). - case rabbit_misc:execute_mnesia_transaction( - fun () -> - Match = - mnesia:match_object( - rabbit_durable_queue, RecoveredQ, read), - case Match of - [_] -> ok = store_queue(Q), - true; - [] -> false - end - end) of - true -> [Q|Acc]; - false -> exit(Q#amqqueue.pid, shutdown), - Acc - end - end, [], - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end)), - {ok, DurableQueues}. + lists:foreach( + fun (RecoveredQ) -> + Q = start_queue_process(RecoveredQ), + %% We need to catch the case where a client connected to + %% another node has deleted the queue (and possibly + %% re-created it). + case rabbit_misc:execute_mnesia_transaction( + fun () -> case mnesia:match_object( + rabbit_durable_queue, RecoveredQ, read) of + [_] -> ok = store_queue(Q), + true; + [] -> false + end + end) of + true -> ok; + false -> exit(Q#amqqueue.pid, shutdown) + end + end, + %% TODO: use dirty ops instead + rabbit_misc:execute_mnesia_transaction( + fun () -> + qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} + <- mnesia:table(rabbit_durable_queue), + node(Pid) == Node])) + end)), + ok. declare(QueueName, Durable, AutoDelete, Args) -> Q = start_queue_process(#amqqueue{name = QueueName, @@ -225,23 +216,6 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). -set_mode_pin(VHostPath, Queue, Disk) - when is_binary(VHostPath) andalso is_binary(Queue) -> - with(rabbit_misc:r(VHostPath, queue, Queue), - fun(Q) -> case Disk of - true -> rabbit_queue_mode_manager:pin_to_disk - (Q #amqqueue.pid); - false -> rabbit_queue_mode_manager:unpin_from_disk - (Q #amqqueue.pid) - end - end). - -set_mode(QPid, Mode) -> - gen_server2:pcast(QPid, 10, {set_mode, Mode}). - -report_memory(QPid) -> - gen_server2:cast(QPid, report_memory). - info(#amqqueue{ pid = QPid }) -> gen_server2:pcall(QPid, 9, info, infinity). @@ -329,10 +303,10 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> infinity). notify_sent(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {notify_sent, ChPid}). + gen_server2:cast(QPid, {notify_sent, ChPid}). unblock(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {unblock, ChPid}). + gen_server2:cast(QPid, {unblock, ChPid}). internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 14a0370d..fe2e8509 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -38,12 +38,10 @@ -define(UNSENT_MESSAGE_LIMIT, 100). -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds -export([start_link/1]). --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1]). +-export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]). -import(queue). -import(erlang). @@ -54,12 +52,10 @@ owner, exclusive_consumer, has_had_consumers, - mixed_state, next_msg_id, + message_buffer, active_consumers, - blocked_consumers, - memory_report_timer - }). + blocked_consumers}). -record(consumer, {tag, ack_required}). @@ -88,9 +84,7 @@ acks_uncommitted, consumers, transactions, - memory, - mode - ]). + memory]). %%---------------------------------------------------------------------------- @@ -99,35 +93,24 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable }) -> +init(Q) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), - ok = rabbit_queue_mode_manager:register - (self(), false, rabbit_amqqueue, set_mode, [self()]), - {ok, MS} = rabbit_mixed_queue:init(QName, Durable), - State = #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - mixed_state = MS, - next_msg_id = 1, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - memory_report_timer = undefined - }, - %% first thing we must do is report_memory which will clear out - %% the 'undefined' values in gain and loss in mixed_queue state - {ok, start_memory_timer(State), hibernate, + {ok, #q{q = Q, + owner = none, + exclusive_consumer = none, + has_had_consumers = false, + next_msg_id = 1, + message_buffer = queue:new(), + active_consumers = queue:new(), + blocked_consumers = queue:new()}, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. terminate(_Reason, State) -> %% FIXME: How do we cancel active subscriptions? QName = qname(State), - NewState = - lists:foldl(fun (Txn, State1) -> - rollback_transaction(Txn, State1) - end, State, all_tx()), - rabbit_mixed_queue:delete_queue(NewState #q.mixed_state), - stop_memory_timer(NewState), + lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, + all_tx()), + ok = purge_message_buffer(QName, State#q.message_buffer), ok = rabbit_amqqueue:internal_delete(QName). code_change(_OldVsn, State, _Extra) -> @@ -135,24 +118,9 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- -reply(Reply, NewState) -> - {reply, Reply, start_memory_timer(NewState), hibernate}. +reply(Reply, NewState) -> {reply, Reply, NewState, hibernate}. -noreply(NewState) -> - {noreply, start_memory_timer(NewState), hibernate}. - -start_memory_timer(State = #q { memory_report_timer = undefined }) -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_amqqueue, report_memory, [self()]), - report_memory(false, State #q { memory_report_timer = TRef }); -start_memory_timer(State) -> - State. - -stop_memory_timer(State = #q { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #q { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #q { memory_report_timer = undefined }. +noreply(NewState) -> {noreply, NewState, hibernate}. lookup_ch(ChPid) -> case get({ch, ChPid}) of @@ -199,11 +167,12 @@ record_current_channel_tx(ChPid, Txn) -> %% that wasn't happening already) store_ch_record((ch_record(ChPid))#cr{txn = Txn}). -deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers, - next_msg_id = NextId}) -> +deliver_immediately(Message, Delivered, + State = #q{q = #amqqueue{name = QName}, + active_consumers = ActiveConsumers, + blocked_consumers = BlockedConsumers, + next_msg_id = NextId}) -> + ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), case queue:out(ActiveConsumers) of {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, ack_required = AckRequired}}}, @@ -211,21 +180,15 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, C = #cr{limiter_pid = LimiterPid, unsent_message_count = Count, unacked_messages = UAM} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of + case rabbit_limiter:can_send(LimiterPid, self(), AckRequired) of true -> - {{Msg, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Msg]), rabbit_channel:deliver( ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, IsDelivered, Msg}), - NewUAM = - case AckRequired of - true -> dict:store(NextId, {Msg, AckTag}, UAM); - false -> UAM - end, + {QName, self(), NextId, Delivered, Message}), + NewUAM = case AckRequired of + true -> dict:store(NextId, Message, UAM); + false -> UAM + end, NewC = C#cr{unsent_message_count = Count + 1, unacked_messages = NewUAM}, store_ch_record(NewC), @@ -241,113 +204,54 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, {ActiveConsumers1, queue:in(QEntry, BlockedConsumers1)} end, - State2 = State1 #q { - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers, - next_msg_id = NextId + 1 - }, - deliver_queue(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> + {offered, AckRequired, + State#q{active_consumers = NewActiveConsumers, + blocked_consumers = NewBlockedConsumers, + next_msg_id = NextId + 1}}; + false -> store_ch_record(C#cr{is_limit_active = true}), {NewActiveConsumers, NewBlockedConsumers} = move_consumers(ChPid, ActiveConsumers, BlockedConsumers), - deliver_queue( - Funs, FunAcc, + deliver_immediately( + Message, Delivered, State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} + blocked_consumers = NewBlockedConsumers}) end; {empty, _} -> - {FunAcc, State} + {not_offered, State} end. -deliver_from_queue_pred({IsEmpty, _AutoAcks}, _State) -> - not IsEmpty. -deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, - State = #q { mixed_state = MS }) -> - {{Msg, IsDelivered, AckTag, Remaining}, MS1} = - rabbit_mixed_queue:deliver(MS), - AutoAcks1 = - case AckRequired of - true -> AutoAcks; - false -> [{Msg, AckTag} | AutoAcks] - end, - {{Msg, IsDelivered, AckTag}, {0 == Remaining, AutoAcks1}, - State #q { mixed_state = MS1 }}. - -run_message_queue(State = #q { mixed_state = MS }) -> - Funs = { fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3 }, - IsEmpty = rabbit_mixed_queue:is_empty(MS), - {{_IsEmpty1, AutoAcks}, State1} = - deliver_queue(Funs, {IsEmpty, []}, State), - {ok, MS1} = - rabbit_mixed_queue:ack(AutoAcks, State1 #q.mixed_state), - State1 #q { mixed_state = MS1 }. - -attempt_immediate_delivery(none, _ChPid, Msg, State) -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1) -> - {AckTag, State2} = - case AckRequired of - true -> - {ok, AckTag1, MS} = - rabbit_mixed_queue:publish_delivered( - Msg, State1 #q.mixed_state), - {AckTag1, State1 #q { mixed_state = MS }}; - false -> - {noack, State1} - end, - {{Msg, false, AckTag}, true, State2} - end, - deliver_queue({ PredFun, DeliverFun }, false, State); -attempt_immediate_delivery(Txn, ChPid, Msg, State) -> - {ok, MS} = rabbit_mixed_queue:tx_publish(Msg, State #q.mixed_state), - record_pending_message(Txn, ChPid, Msg), - {true, State #q { mixed_state = MS }}. - -deliver_or_enqueue(Txn, ChPid, Msg, State) -> - case attempt_immediate_delivery(Txn, ChPid, Msg, State) of +attempt_delivery(none, _ChPid, Message, State) -> + case deliver_immediately(Message, false, State) of + {offered, false, State1} -> + {true, State1}; + {offered, true, State1} -> + persist_message(none, qname(State), Message), + persist_delivery(qname(State), Message, false), + {true, State1}; + {not_offered, State1} -> + {false, State1} + end; +attempt_delivery(Txn, ChPid, Message, State) -> + persist_message(Txn, qname(State), Message), + record_pending_message(Txn, ChPid, Message), + {true, State}. + +deliver_or_enqueue(Txn, ChPid, Message, State) -> + case attempt_delivery(Txn, ChPid, Message, State) of {true, NewState} -> {true, NewState}; {false, NewState} -> - %% Txn is none and no unblocked channels with consumers - {ok, MS} = rabbit_mixed_queue:publish(Msg, State #q.mixed_state), - {false, NewState #q { mixed_state = MS }} - end. - -%% all these messages have already been delivered at least once and -%% not ack'd, but need to be either redelivered or requeued -deliver_or_requeue_n([], State) -> - run_message_queue(State); -deliver_or_requeue_n(MsgsWithAcks, State) -> - Funs = { fun deliver_or_requeue_msgs_pred/2, - fun deliver_or_requeue_msgs_deliver/3 }, - {{_RemainingLengthMinusOne, AutoAcks, OutstandingMsgs}, NewState} = - deliver_queue(Funs, {length(MsgsWithAcks) - 1, [], MsgsWithAcks}, - State), - {ok, MS} = rabbit_mixed_queue:ack(AutoAcks, - NewState #q.mixed_state), - case OutstandingMsgs of - [] -> run_message_queue(NewState #q { mixed_state = MS }); - _ -> {ok, MS1} = rabbit_mixed_queue:requeue(OutstandingMsgs, MS), - NewState #q { mixed_state = MS1 } + persist_message(Txn, qname(State), Message), + NewMB = queue:in({Message, false}, NewState#q.message_buffer), + {false, NewState#q{message_buffer = NewMB}} end. -deliver_or_requeue_msgs_pred({Len, _AcksAcc, _MsgsWithAcks}, _State) -> - -1 < Len. -deliver_or_requeue_msgs_deliver( - false, {Len, AcksAcc, [(MsgAckTag = {Msg, _}) | MsgsWithAcks]}, State) -> - {{Msg, true, noack}, {Len - 1, [MsgAckTag | AcksAcc], MsgsWithAcks}, State}; -deliver_or_requeue_msgs_deliver( - true, {Len, AcksAcc, [{Msg, AckTag} | MsgsWithAcks]}, State) -> - {{Msg, true, AckTag}, {Len - 1, AcksAcc, MsgsWithAcks}, State}. +deliver_or_enqueue_n(Messages, State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(queue:join(MessageBuffer, queue:from_list(Messages)), + State). add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). @@ -381,7 +285,7 @@ possibly_unblock(State, ChPid, Update) -> move_consumers(ChPid, State#q.blocked_consumers, State#q.active_consumers), - run_message_queue( + run_poke_burst( State#q{active_consumers = NewActiveConsumers, blocked_consumers = NewBlockedeConsumers}) end @@ -398,27 +302,27 @@ handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> unacked_messages = UAM} -> erlang:demonitor(MonitorRef), erase({ch, ChPid}), - State1 = - case Txn of - none -> State; - _ -> rollback_transaction(Txn, State) - end, - State2 = - deliver_or_requeue_n( - [MsgWithAck || - {_MsgId, MsgWithAck} <- dict:to_list(UAM)], - State1 #q { + case Txn of + none -> ok; + _ -> ok = rollback_work(Txn, qname(State)), + erase_tx(Txn) + end, + NewState = + deliver_or_enqueue_n( + [{Message, true} || + {_Messsage_id, Message} <- dict:to_list(UAM)], + State#q{ exclusive_consumer = case Holder of {ChPid, _} -> none; Other -> Other end, active_consumers = remove_consumers( - ChPid, State1#q.active_consumers), + ChPid, State#q.active_consumers), blocked_consumers = remove_consumers( - ChPid, State1#q.blocked_consumers)}), - case should_auto_delete(State2) of - false -> noreply(State2); - true -> {stop, normal, State2} + ChPid, State#q.blocked_consumers)}), + case should_auto_delete(NewState) of + false -> noreply(NewState); + true -> {stop, normal, NewState} end end. @@ -441,6 +345,26 @@ check_exclusive_access(none, true, State) -> false -> in_use end. +run_poke_burst(State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(MessageBuffer, State). + +run_poke_burst(MessageBuffer, State) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> + case deliver_immediately(Message, Delivered, State) of + {offered, true, NewState} -> + persist_delivery(qname(State), Message, Delivered), + run_poke_burst(BufferTail, NewState); + {offered, false, NewState} -> + persist_auto_ack(qname(State), Message), + run_poke_burst(BufferTail, NewState); + {not_offered, NewState} -> + NewState#q{message_buffer = MessageBuffer} + end; + {empty, _} -> + State#q{message_buffer = MessageBuffer} + end. + is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso queue:is_empty(State#q.blocked_consumers). @@ -449,6 +373,62 @@ maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). qname(#q{q = #amqqueue{name = QName}}) -> QName. +persist_message(_Txn, _QName, #basic_message{persistent_key = none}) -> + ok; +persist_message(Txn, QName, Message) -> + M = Message#basic_message{ + %% don't persist any recoverable decoded properties, rebuild from properties_bin on restore + content = rabbit_binary_parser:clear_decoded_content( + Message#basic_message.content)}, + persist_work(Txn, QName, + [{publish, M, {QName, M#basic_message.persistent_key}}]). + +persist_delivery(_QName, _Message, + true) -> + ok; +persist_delivery(_QName, #basic_message{persistent_key = none}, + _Delivered) -> + ok; +persist_delivery(QName, #basic_message{persistent_key = PKey}, + _Delivered) -> + persist_work(none, QName, [{deliver, {QName, PKey}}]). + +persist_acks(Txn, QName, Messages) -> + persist_work(Txn, QName, + [{ack, {QName, PKey}} || + #basic_message{persistent_key = PKey} <- Messages, + PKey =/= none]). + +persist_auto_ack(_QName, #basic_message{persistent_key = none}) -> + ok; +persist_auto_ack(QName, #basic_message{persistent_key = PKey}) -> + %% auto-acks are always non-transactional + rabbit_persister:dirty_work([{ack, {QName, PKey}}]). + +persist_work(_Txn,_QName, []) -> + ok; +persist_work(none, _QName, WorkList) -> + rabbit_persister:dirty_work(WorkList); +persist_work(Txn, QName, WorkList) -> + mark_tx_persistent(Txn), + rabbit_persister:extend_transaction({Txn, QName}, WorkList). + +commit_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:commit_transaction/1, + Txn, QName). + +rollback_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:rollback_transaction/1, + Txn, QName). + +%% optimisation: don't do unnecessary work +%% it would be nice if this was handled by the persister +do_if_persistent(F, Txn, QName) -> + case is_tx_persistent(Txn) of + false -> ok; + true -> ok = F({Txn, QName}) + end. + lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx{ch_pid = none, @@ -470,14 +450,19 @@ all_tx_record() -> all_tx() -> [Txn || {{txn, Txn}, _} <- get()]. -record_pending_message(Txn, ChPid, Message = - #basic_message { is_persistent = IsPersistent }) -> - Tx = #tx{pending_messages = Pending, is_persistent = IsPersistentTxn } = - lookup_tx(Txn), +mark_tx_persistent(Txn) -> + Tx = lookup_tx(Txn), + store_tx(Txn, Tx#tx{is_persistent = true}). + +is_tx_persistent(Txn) -> + #tx{is_persistent = Res} = lookup_tx(Txn), + Res. + +record_pending_message(Txn, ChPid, Message) -> + Tx = #tx{pending_messages = Pending} = lookup_tx(Txn), record_current_channel_tx(ChPid, Txn), - store_tx(Txn, Tx #tx { pending_messages = [Message | Pending], - is_persistent = IsPersistentTxn orelse IsPersistent - }). + store_tx(Txn, Tx#tx{pending_messages = [{Message, false} | Pending], + ch_pid = ChPid}). record_pending_acks(Txn, ChPid, MsgIds) -> Tx = #tx{pending_acks = Pending} = lookup_tx(Txn), @@ -485,53 +470,48 @@ record_pending_acks(Txn, ChPid, MsgIds) -> store_tx(Txn, Tx#tx{pending_acks = [MsgIds | Pending], ch_pid = ChPid}). -commit_transaction(Txn, State) -> - #tx { ch_pid = ChPid, - pending_messages = PendingMessages, - pending_acks = PendingAcks - } = lookup_tx(Txn), - PendingMessagesOrdered = lists:reverse(PendingMessages), - PendingAcksOrdered = lists:append(PendingAcks), - Acks = - case lookup_ch(ChPid) of - not_found -> []; - C = #cr { unacked_messages = UAM } -> - {MsgWithAcks, Remaining} = - collect_messages(PendingAcksOrdered, UAM), - store_ch_record(C#cr{unacked_messages = Remaining}), - MsgWithAcks - end, - {ok, MS} = rabbit_mixed_queue:tx_commit( - PendingMessagesOrdered, Acks, State #q.mixed_state), - State #q { mixed_state = MS }. - -rollback_transaction(Txn, State) -> - #tx { pending_messages = PendingMessages - } = lookup_tx(Txn), - {ok, MS} = rabbit_mixed_queue:tx_cancel(PendingMessages, - State #q.mixed_state), - erase_tx(Txn), - State #q { mixed_state = MS }. +process_pending(Txn, State) -> + #tx{ch_pid = ChPid, + pending_messages = PendingMessages, + pending_acks = PendingAcks} = lookup_tx(Txn), + case lookup_ch(ChPid) of + not_found -> ok; + C = #cr{unacked_messages = UAM} -> + {_Acked, Remaining} = + collect_messages(lists:append(PendingAcks), UAM), + store_ch_record(C#cr{unacked_messages = Remaining}) + end, + deliver_or_enqueue_n(lists:reverse(PendingMessages), State). -%% {A, B} = collect_messages(C, D) %% A = C `intersect` D; B = D \\ C -%% err, A = C `intersect` D , via projection through the dict that is C collect_messages(MsgIds, UAM) -> lists:mapfoldl( fun (MsgId, D) -> {dict:fetch(MsgId, D), dict:erase(MsgId, D)} end, UAM, MsgIds). +purge_message_buffer(QName, MessageBuffer) -> + Messages = + [[Message || {Message, _Delivered} <- + queue:to_list(MessageBuffer)] | + lists:map( + fun (#cr{unacked_messages = UAM}) -> + [Message || {_MessageId, Message} <- dict:to_list(UAM)] + end, + all_ch_record())], + %% the simplest, though certainly not the most obvious or + %% efficient, way to purge messages from the persister is to + %% artifically ack them. + persist_acks(none, QName, lists:append(Messages)). + infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. i(name, #q{q = #amqqueue{name = Name}}) -> Name; i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(mode, #q{ mixed_state = MS }) -> - rabbit_mixed_queue:info(MS); i(pid, _) -> self(); -i(messages_ready, #q { mixed_state = MS }) -> - rabbit_mixed_queue:length(MS); +i(messages_ready, #q{message_buffer = MessageBuffer}) -> + queue:len(MessageBuffer); i(messages_unacknowledged, _) -> lists:sum([dict:size(UAM) || #cr{unacked_messages = UAM} <- all_ch_record()]); @@ -555,12 +535,6 @@ i(memory, _) -> i(Item, _) -> throw({bad_argument, Item}). -report_memory(Hib, State = #q { mixed_state = MS }) -> - {MS1, MSize, Gain, Loss} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - rabbit_queue_mode_manager:report_memory(self(), MSize, Gain, Loss, Hib), - State #q { mixed_state = MS1 }. - %--------------------------------------------------------------------------- handle_call(info, _From, State) -> @@ -586,8 +560,7 @@ handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> %% just all ready-to-consume queues get the message, with unready %% queues discarding the message? %% - {Delivered, NewState} = - attempt_immediate_delivery(Txn, ChPid, Message, State), + {Delivered, NewState} = attempt_delivery(Txn, ChPid, Message, State), reply(Delivered, NewState); handle_call({deliver, Txn, Message, ChPid}, _From, State) -> @@ -596,11 +569,12 @@ handle_call({deliver, Txn, Message, ChPid}, _From, State) -> reply(Delivered, NewState); handle_call({commit, Txn}, From, State) -> - NewState = commit_transaction(Txn, State), + ok = commit_work(Txn, qname(State)), %% optimisation: we reply straight away so the sender can continue gen_server2:reply(From, ok), + NewState = process_pending(Txn, State), erase_tx(Txn), - noreply(run_message_queue(NewState)); + noreply(NewState); handle_call({notify_down, ChPid}, From, State) -> %% optimisation: we reply straight away so the sender can continue @@ -610,27 +584,25 @@ handle_call({notify_down, ChPid}, From, State) -> handle_call({basic_get, ChPid, NoAck}, _From, State = #q{q = #amqqueue{name = QName}, next_msg_id = NextId, - mixed_state = MS - }) -> - case rabbit_mixed_queue:deliver(MS) of - {empty, MS1} -> reply(empty, State #q { mixed_state = MS1 }); - {{Msg, IsDelivered, AckTag, Remaining}, MS1} -> + message_buffer = MessageBuffer}) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> AckRequired = not(NoAck), - {ok, MS3} = - case AckRequired of - true -> - C = #cr{unacked_messages = UAM} = ch_record(ChPid), - NewUAM = dict:store(NextId, {Msg, AckTag}, UAM), - store_ch_record(C#cr{unacked_messages = NewUAM}), - {ok, MS1}; - false -> - rabbit_mixed_queue:ack([{Msg, AckTag}], MS1) - end, - Message = {QName, self(), NextId, IsDelivered, Msg}, - reply({ok, Remaining, Message}, - State #q { next_msg_id = NextId + 1, - mixed_state = MS3 - }) + case AckRequired of + true -> + persist_delivery(QName, Message, Delivered), + C = #cr{unacked_messages = UAM} = ch_record(ChPid), + NewUAM = dict:store(NextId, Message, UAM), + store_ch_record(C#cr{unacked_messages = NewUAM}); + false -> + persist_auto_ack(QName, Message) + end, + Msg = {QName, self(), NextId, Delivered, Message}, + reply({ok, queue:len(BufferTail), Msg}, + State#q{message_buffer = BufferTail, + next_msg_id = NextId + 1}); + {empty, _} -> + reply(empty, State) end; handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, @@ -651,14 +623,15 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, ack_required = not(NoAck)}, store_ch_record(C#cr{consumer_count = ConsumerCount +1, limiter_pid = LimiterPid}), - case ConsumerCount of - 0 -> ok = rabbit_limiter:register(LimiterPid, self()); - _ -> ok + if ConsumerCount == 0 -> + ok = rabbit_limiter:register(LimiterPid, self()); + true -> + ok end, - ExclusiveConsumer = case ExclusiveConsume of - true -> {ChPid, ConsumerTag}; - false -> ExistingHolder - end, + ExclusiveConsumer = + if ExclusiveConsume -> {ChPid, ConsumerTag}; + true -> ExistingHolder + end, State1 = State#q{has_had_consumers = true, exclusive_consumer = ExclusiveConsumer}, ok = maybe_send_reply(ChPid, OkMsg), @@ -669,7 +642,7 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, add_consumer( ChPid, Consumer, State1#q.blocked_consumers)}; - false -> run_message_queue( + false -> run_poke_burst( State1#q{ active_consumers = add_consumer( @@ -688,10 +661,11 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, reply(ok, State); C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - ok = case ConsumerCount of - 1 -> rabbit_limiter:unregister(LimiterPid, self()); - _ -> ok - end, + if ConsumerCount == 1 -> + ok = rabbit_limiter:unregister(LimiterPid, self()); + true -> + ok + end, ok = maybe_send_reply(ChPid, OkMsg), NewState = State#q{exclusive_consumer = cancel_holder(ChPid, @@ -710,15 +684,14 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, end; handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, - mixed_state = MS, + message_buffer = MessageBuffer, active_consumers = ActiveConsumers}) -> - Length = rabbit_mixed_queue:length(MS), - reply({ok, Name, Length, queue:len(ActiveConsumers)}, State); + reply({ok, Name, queue:len(MessageBuffer), queue:len(ActiveConsumers)}, + State); handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q { mixed_state = MS }) -> - Length = rabbit_mixed_queue:length(MS), - IsEmpty = Length == 0, + State = #q{message_buffer = MessageBuffer}) -> + IsEmpty = queue:is_empty(MessageBuffer), IsUnused = is_unused(State), if IfEmpty and not(IsEmpty) -> @@ -726,16 +699,16 @@ handle_call({delete, IfUnused, IfEmpty}, _From, IfUnused and not(IsUnused) -> reply({error, in_use}, State); true -> - {stop, normal, {ok, Length}, State} + {stop, normal, {ok, queue:len(MessageBuffer)}, State} end; -handle_call(purge, _From, State) -> - {Count, MS} = rabbit_mixed_queue:purge(State #q.mixed_state), - reply({ok, Count}, - State #q { mixed_state = MS }); +handle_call(purge, _From, State = #q{message_buffer = MessageBuffer}) -> + ok = purge_message_buffer(qname(State), MessageBuffer), + reply({ok, queue:len(MessageBuffer)}, + State#q{message_buffer = queue:new()}); -handle_call({claim_queue, ReaderPid}, _From, - State = #q{owner = Owner, exclusive_consumer = Holder}) -> +handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, + exclusive_consumer = Holder}) -> case Owner of none -> case check_exclusive_access(Holder, true, State) of @@ -748,10 +721,7 @@ handle_call({claim_queue, ReaderPid}, _From, %% pid... reply(locked, State); ok -> - reply(ok, State #q { owner = - {ReaderPid, - erlang:monitor(process, ReaderPid)} }) - + reply(ok, State#q{owner = {ReaderPid, erlang:monitor(process, ReaderPid)}}) end; {ReaderPid, _MonitorRef} -> reply(ok, State); @@ -769,21 +739,24 @@ handle_cast({ack, Txn, MsgIds, ChPid}, State) -> not_found -> noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, Remaining} = collect_messages(MsgIds, UAM), + {Acked, Remaining} = collect_messages(MsgIds, UAM), + persist_acks(Txn, qname(State), Acked), case Txn of none -> - {ok, MS} = - rabbit_mixed_queue:ack(MsgWithAcks, State #q.mixed_state), - store_ch_record(C#cr{unacked_messages = Remaining}), - noreply(State #q { mixed_state = MS }); + store_ch_record(C#cr{unacked_messages = Remaining}); _ -> - record_pending_acks(Txn, ChPid, MsgIds), - noreply(State) - end + record_pending_acks(Txn, ChPid, MsgIds) + end, + noreply(State) end; handle_cast({rollback, Txn}, State) -> - noreply(rollback_transaction(Txn, State)); + ok = rollback_work(Txn, qname(State)), + erase_tx(Txn), + noreply(State); + +handle_cast({redeliver, Messages}, State) -> + noreply(deliver_or_enqueue_n(Messages, State)); handle_cast({requeue, MsgIds, ChPid}, State) -> case lookup_ch(ChPid) of @@ -792,9 +765,10 @@ handle_cast({requeue, MsgIds, ChPid}, State) -> [ChPid]), noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, NewUAM} = collect_messages(MsgIds, UAM), + {Messages, NewUAM} = collect_messages(MsgIds, UAM), store_ch_record(C#cr{unacked_messages = NewUAM}), - noreply(deliver_or_requeue_n(MsgWithAcks, State)) + noreply(deliver_or_enqueue_n( + [{Message, true} || Message <- Messages], State)) end; handle_cast({unblock, ChPid}, State) -> @@ -823,22 +797,7 @@ handle_cast({limit, ChPid, LimiterPid}, State) -> end, NewLimited = Limited andalso LimiterPid =/= undefined, C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> - PendingMessages = - lists:flatten([Pending || #tx { pending_messages = Pending} - <- all_tx_record()]), - {ok, MS1} = (case Mode of - disk -> fun rabbit_mixed_queue:to_disk_only_mode/2; - mixed -> fun rabbit_mixed_queue:to_mixed_mode/2 - end)(PendingMessages, MS), - noreply(State #q { mixed_state = MS1 }); - -handle_cast(report_memory, State) -> - %% deliberately don't call noreply/2 as we don't want to restart the timer - %% by unsetting the timer, we force a report on the next normal message - {noreply, State #q { memory_report_timer = undefined }, hibernate}. + end)). handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> @@ -859,10 +818,3 @@ handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> handle_info(Info, State) -> ?LOGDEBUG("Info in queue: ~p~n", [Info]), {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q { mixed_state = MS }) -> - MS1 = rabbit_mixed_queue:maybe_prefetch(MS), - State1 = - stop_memory_timer(report_memory(true, State #q { mixed_state = MS1 })), - %% don't call noreply/1 as that'll restart the memory_report_timer - {hibernate, State1}. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 8adb608f..4033aaaf 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -33,8 +33,8 @@ -include("rabbit.hrl"). -include("rabbit_framing.hrl"). --export([publish/1, message/4, message/5, message/6, delivery/4]). --export([properties/1, publish/4, publish/7]). +-export([publish/1, message/4, properties/1, delivery/4]). +-export([publish/4, publish/7]). -export([build_content/2, from_content/1]). %%---------------------------------------------------------------------------- @@ -48,10 +48,6 @@ -spec(delivery/4 :: (bool(), bool(), maybe(txn()), message()) -> delivery()). -spec(message/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> message()). --spec(message/5 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid()) -> message()). --spec(message/6 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid(), bool()) -> message()). -spec(properties/1 :: (properties_input()) -> amqp_properties()). -spec(publish/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> publish_result()). @@ -95,18 +91,11 @@ from_content(Content) -> {Props, list_to_binary(lists:reverse(FragmentsRev))}. message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, rabbit_guid:guid()). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, false). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, IsPersistent) -> Properties = properties(RawProperties), #basic_message{exchange_name = ExchangeName, routing_key = RoutingKeyBin, content = build_content(Properties, BodyBin), - guid = MsgId, - is_persistent = IsPersistent}. + persistent_key = none}. properties(P = #'P_basic'{}) -> P; diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 397659c1..16b7c938 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -317,11 +317,14 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, %% We decode the content's properties here because we're almost %% certain to want to look at delivery-mode and priority. DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), + PersistentKey = case is_message_persistent(DecodedContent) of + true -> rabbit_guid:guid(); + false -> none + end, Message = #basic_message{exchange_name = ExchangeName, routing_key = RoutingKey, content = DecodedContent, - guid = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent)}, + persistent_key = PersistentKey}, {RoutingRes, DeliveredQPids} = rabbit_exchange:publish( Exchange, diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 99bbb742..37e4d189 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,9 +137,6 @@ Available commands: list_bindings [-p ] list_connections [ ...] - pin_queue_to_disk - unpin_queue_from_disk - Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -155,8 +152,8 @@ virtual host parameter for which to display results. The default value is \"/\". must be a member of the list [name, durable, auto_delete, arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, -messages, acks_uncommitted, consumers, transactions, memory, mode]. The default -is to display name and (number of) messages. +messages, acks_uncommitted, consumers, transactions, memory]. The default is + to display name and (number of) messages. must be a member of the list [name, type, durable, auto_delete, arguments]. The default is to display name and type. @@ -169,9 +166,6 @@ peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. -pin_queue_to_disk will force a queue to be in disk mode. -unpin_queue_from_disk will permit a queue that has been pinned to disk mode -to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -286,18 +280,6 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). -action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> - Inform("Pinning queue ~p in vhost ~p to disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), true]); - -action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> - Inform("Unpinning queue ~p in vhost ~p from disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), false]); - action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl deleted file mode 100644 index 5940f5ad..00000000 --- a/src/rabbit_disk_queue.erl +++ /dev/null @@ -1,1973 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_disk_queue). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([handle_pre_hibernate/1]). - --export([publish/3, deliver/1, phantom_deliver/1, ack/2, - tx_publish/1, tx_commit/3, tx_cancel/1, - requeue/2, purge/1, delete_queue/1, - delete_non_durable_queues/1, auto_ack_next_message/1, - requeue_next_n/2, length/1, foldl/3, prefetch/1 - ]). - --export([filesync/0, cache_info/0]). - --export([stop/0, stop_and_obliterate/0, report_memory/0, - set_mode/1, to_disk_only_mode/0, to_ram_disk_mode/0]). - --include("rabbit.hrl"). - --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_TRANSIENT, 255). --define(WRITE_OK_PERSISTENT, 254). --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(MSG_LOC_NAME, rabbit_disk_queue_msg_location). --define(FILE_SUMMARY_ETS_NAME, rabbit_disk_queue_file_summary). --define(SEQUENCE_ETS_NAME, rabbit_disk_queue_sequences). --define(CACHE_ETS_NAME, rabbit_disk_queue_cache). --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). --define(FILE_EXTENSION_DETS, ".dets"). --define(FILE_PACKING_ADJUSTMENT, (1 + (2* (?INTEGER_SIZE_BYTES)))). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds --define(BATCH_SIZE, 10000). --define(CACHE_MAX_SIZE, 10485760). - --define(SERVER, ?MODULE). - --define(MAX_READ_FILE_HANDLES, 256). --define(FILE_SIZE_LIMIT, (256*1024*1024)). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(dqstate, - {msg_location_dets, %% where are messages? - msg_location_ets, %% as above, but for ets version - operation_mode, %% ram_disk | disk_only - file_summary, %% what's in the files? - sequences, %% next read and write for each q - current_file_num, %% current file name as number - current_file_name, %% current file name - current_file_handle, %% current file handle - current_offset, %% current offset within current file - current_dirty, %% has the current file been written to - %% since the last fsync? - file_size_limit, %% how big can our files get? - read_file_handles, %% file handles for reading (LRU) - read_file_handles_limit, %% how many file handles can we open? - on_sync_txns, %% list of commiters to run on sync (reversed) - commit_timer_ref, %% TRef for our interval timer - last_sync_offset, %% current_offset at the last time we sync'd - message_cache, %% ets message cache - memory_report_timer, %% TRef for the memory report timer - wordsize, %% bytes in a word on this platform - mnesia_bytes_per_record, %% bytes per record in mnesia in ram_disk mode - ets_bytes_per_record %% bytes per record in msg_location_ets - }). - -%% The components: -%% -%% MsgLocation: this is a (d)ets table which contains: -%% {MsgId, RefCount, File, Offset, TotalSize, IsPersistent} -%% FileSummary: this is an ets table which contains: -%% {File, ValidTotalSize, ContiguousTop, Left, Right} -%% Sequences: this is an ets table which contains: -%% {Q, ReadSeqId, WriteSeqId} -%% rabbit_disk_queue: this is an mnesia table which contains: -%% #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, -%% is_delivered = IsDelivered, -%% msg_id = MsgId -%% } -%% - -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the MsgLocation table); how much useful data is in each file and -%% which files are on the left and right of each other. This is the -%% purpose of the FileSummary table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file, whilst ContiguousTop contains the amount of -%% valid data right at the start of each file. These are needed for -%% garbage collection. -%% -%% On publish, we write the message to disk, record the changes to -%% FileSummary and MsgLocation, and, should this be either a plain -%% publish, or followed by a tx_commit, we record the message in the -%% mnesia table. Sequences exists to enforce ordering of messages as -%% they are published within a queue. -%% -%% On delivery, we read the next message to be read from disk -%% (according to the ReadSeqId for the given queue) and record in the -%% mnesia table that the message has been delivered. -%% -%% On ack we remove the relevant entry from MsgLocation, update -%% FileSummary and delete from the mnesia table. -%% -%% In order to avoid extra mnesia searching, we return the SeqId -%% during delivery which must be returned in ack - it is not possible -%% to ack from MsgId alone. - -%% As messages are ack'd, holes develop in the files. When we discover -%% that either a file is now empty or that it can be combined with the -%% useful data in either its left or right file, we compact the two -%% files together. This keeps disk utilisation high and aids -%% performance. -%% -%% Given the compaction between two files, the left file is considered -%% the ultimate destination for the good data in the right file. If -%% necessary, the good data in the left file which is fragmented -%% throughout the file is written out to a temporary file, then read -%% back in to form a contiguous chunk of good data at the start of the -%% left file. Thus the left file is garbage collected and -%% compacted. Then the good data from the right file is copied onto -%% the end of the left file. MsgLocation and FileSummary tables are -%% updated. -%% -%% On startup, we scan the files we discover, dealing with the -%% possibilites of a crash have occured during a compaction (this -%% consists of tidyup - the compaction is deliberately designed such -%% that data is duplicated on disk rather than risking it being lost), -%% and rebuild the dets and ets tables (MsgLocation, FileSummary, -%% Sequences) from what we find. We ensure that the messages we have -%% discovered on disk match exactly with the messages recorded in the -%% mnesia table. - -%% MsgLocation is deliberately a dets table, and the mnesia table is -%% set to be a disk_only_table in order to ensure that we are not RAM -%% constrained. However, for performance reasons, it is possible to -%% call to_ram_disk_mode/0 which will alter the mnesia table to -%% disc_copies and convert MsgLocation to an ets table. This results -%% in a massive performance improvement, at the expense of greater RAM -%% usage. The idea is that when memory gets tight, we switch to -%% disk_only mode but otherwise try to run in ram_disk mode. - -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten (yes, this is -%% the data the size of which is tracked by the ContiguousTop -%% variable. Judicious use of a mirror is required). -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). - -%% ---- SPECS ---- - --ifdef(use_specs). - --type(seq_id() :: non_neg_integer()). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(publish/3 :: (queue_name(), message(), bool()) -> 'ok'). --spec(deliver/1 :: (queue_name()) -> - ('empty' | {message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}, non_neg_integer()})). --spec(phantom_deliver/1 :: (queue_name()) -> - ( 'empty' | {msg_id(), bool(), bool(), {msg_id(), seq_id()}, - non_neg_integer()})). --spec(prefetch/1 :: (queue_name()) -> 'ok'). --spec(ack/2 :: (queue_name(), [{msg_id(), seq_id()}]) -> 'ok'). --spec(auto_ack_next_message/1 :: (queue_name()) -> 'ok'). --spec(tx_publish/1 :: (message()) -> 'ok'). --spec(tx_commit/3 :: (queue_name(), [{msg_id(), bool()}], - [{msg_id(), seq_id()}]) -> 'ok'). --spec(tx_cancel/1 :: ([msg_id()]) -> 'ok'). --spec(requeue/2 :: (queue_name(), [{{msg_id(), seq_id()}, bool()}]) -> 'ok'). --spec(requeue_next_n/2 :: (queue_name(), non_neg_integer()) -> 'ok'). --spec(purge/1 :: (queue_name()) -> non_neg_integer()). --spec(delete_queue/1 :: (queue_name()) -> 'ok'). --spec(delete_non_durable_queues/1 :: (set()) -> 'ok'). --spec(length/1 :: (queue_name()) -> non_neg_integer()). --spec(foldl/3 :: (fun (({message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}}, A) -> - A), A, queue_name()) -> A). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_obliterate/0 :: () -> 'ok'). --spec(to_disk_only_mode/0 :: () -> 'ok'). --spec(to_ram_disk_mode/0 :: () -> 'ok'). --spec(filesync/0 :: () -> 'ok'). --spec(cache_info/0 :: () -> [{atom(), term()}]). --spec(report_memory/0 :: () -> 'ok'). --spec(set_mode/1 :: ('disk' | 'mixed') -> 'ok'). - --endif. - -%% ---- PUBLIC API ---- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, - [?FILE_SIZE_LIMIT, ?MAX_READ_FILE_HANDLES], []). - -publish(Q, Message = #basic_message {}, IsDelivered) -> - gen_server2:cast(?SERVER, {publish, Q, Message, IsDelivered}). - -deliver(Q) -> - gen_server2:call(?SERVER, {deliver, Q}, infinity). - -phantom_deliver(Q) -> - gen_server2:call(?SERVER, {phantom_deliver, Q}, infinity). - -prefetch(Q) -> - gen_server2:pcast(?SERVER, -1, {prefetch, Q, self()}). - -ack(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {ack, Q, MsgSeqIds}). - -auto_ack_next_message(Q) -> - gen_server2:cast(?SERVER, {auto_ack_next_message, Q}). - -tx_publish(Message = #basic_message {}) -> - gen_server2:cast(?SERVER, {tx_publish, Message}). - -tx_commit(Q, PubMsgIds, AckSeqIds) - when is_list(PubMsgIds) andalso is_list(AckSeqIds) -> - gen_server2:call(?SERVER, {tx_commit, Q, PubMsgIds, AckSeqIds}, infinity). - -tx_cancel(MsgIds) when is_list(MsgIds) -> - gen_server2:cast(?SERVER, {tx_cancel, MsgIds}). - -requeue(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {requeue, Q, MsgSeqIds}). - -requeue_next_n(Q, N) when is_integer(N) -> - gen_server2:cast(?SERVER, {requeue_next_n, Q, N}). - -purge(Q) -> - gen_server2:call(?SERVER, {purge, Q}, infinity). - -delete_queue(Q) -> - gen_server2:cast(?SERVER, {delete_queue, Q}). - -delete_non_durable_queues(DurableQueues) -> - gen_server2:call(?SERVER, {delete_non_durable_queues, DurableQueues}, - infinity). - -length(Q) -> - gen_server2:call(?SERVER, {length, Q}, infinity). - -foldl(Fun, Init, Acc) -> - gen_server2:call(?SERVER, {foldl, Fun, Init, Acc}, infinity). - -stop() -> - gen_server2:call(?SERVER, stop, infinity). - -stop_and_obliterate() -> - gen_server2:call(?SERVER, stop_vaporise, infinity). - -to_disk_only_mode() -> - gen_server2:pcall(?SERVER, 9, to_disk_only_mode, infinity). - -to_ram_disk_mode() -> - gen_server2:pcall(?SERVER, 9, to_ram_disk_mode, infinity). - -filesync() -> - gen_server2:pcast(?SERVER, 10, filesync). - -cache_info() -> - gen_server2:call(?SERVER, cache_info, infinity). - -report_memory() -> - gen_server2:cast(?SERVER, report_memory). - -set_mode(Mode) -> - gen_server2:pcast(?SERVER, 10, {set_mode, Mode}). - -%% ---- GEN-SERVER INTERNAL API ---- - -init([FileSizeLimit, ReadFileHandlesLimit]) -> - %% If the gen_server is part of a supervision tree and is ordered - %% by its supervisor to terminate, terminate will be called with - %% Reason=shutdown if the following conditions apply: - %% * the gen_server has been set to trap exit signals, and - %% * the shutdown strategy as defined in the supervisor's - %% child specification is an integer timeout value, not - %% brutal_kill. - %% Otherwise, the gen_server will be immediately terminated. - process_flag(trap_exit, true), - ok = rabbit_queue_mode_manager:register - (self(), true, rabbit_disk_queue, set_mode, []), - Node = node(), - ok = - case mnesia:change_table_copy_type(rabbit_disk_queue, Node, - disc_copies) of - {atomic, ok} -> ok; - {aborted, {already_exists, rabbit_disk_queue, Node, - disc_copies}} -> ok; - E -> E - end, - ok = filelib:ensure_dir(form_filename("nothing")), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - {ok, MsgLocationDets} = - dets:open_file(?MSG_LOC_NAME, - [{file, form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)}, - {min_no_slots, 1024*1024}, - %% man says this should be <= 32M. But it works... - {max_no_slots, 30*1024*1024}, - {type, set} - ]), - - %% it would be better to have this as private, but dets:from_ets/2 - %% seems to blow up if it is set private - MsgLocationEts = ets:new(?MSG_LOC_NAME, [set, protected]), - - TRef = start_memory_timer(), - - InitName = "0" ++ ?FILE_EXTENSION, - State = - #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - operation_mode = ram_disk, - file_summary = ets:new(?FILE_SUMMARY_ETS_NAME, - [set, private]), - sequences = ets:new(?SEQUENCE_ETS_NAME, - [set, private]), - current_file_num = 0, - current_file_name = InitName, - current_file_handle = undefined, - current_offset = 0, - current_dirty = false, - file_size_limit = FileSizeLimit, - read_file_handles = {dict:new(), gb_trees:empty()}, - read_file_handles_limit = ReadFileHandlesLimit, - on_sync_txns = [], - commit_timer_ref = undefined, - last_sync_offset = 0, - message_cache = ets:new(?CACHE_ETS_NAME, - [set, private]), - memory_report_timer = TRef, - wordsize = erlang:system_info(wordsize), - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined - }, - {ok, State1 = #dqstate { current_file_name = CurrentName, - current_offset = Offset } } = - load_from_disk(State), - Path = form_filename(CurrentName), - Exists = case file:read_file_info(Path) of - {error,enoent} -> false; - {ok, _} -> true - end, - %% read is only needed so that we can seek - {ok, FileHdl} = file:open(Path, [read, write, raw, binary, delayed_write]), - case Exists of - true -> {ok, Offset} = file:position(FileHdl, {bof, Offset}); - false -> %% new file, so preallocate - ok = preallocate(FileHdl, FileSizeLimit, Offset) - end, - State2 = State1 #dqstate { current_file_handle = FileHdl }, - %% by reporting a memory use of 0, we guarantee the manager will - %% grant us to ram_disk mode. We have to start in ram_disk mode - %% because we can't find values for mnesia_bytes_per_record or - %% ets_bytes_per_record otherwise. - ok = rabbit_queue_mode_manager:report_memory(self(), 0, false), - ok = report_memory(false, State2), - {ok, State2, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, true, false, true, State), - reply(Result, State1); -handle_call({phantom_deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, false, false, true, State), - reply(Result, State1); -handle_call({tx_commit, Q, PubMsgIds, AckSeqIds}, From, State) -> - State1 = - internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, State), - noreply(State1); -handle_call({purge, Q}, _From, State) -> - {ok, Count, State1} = internal_purge(Q, State), - reply(Count, State1); -handle_call({length, Q}, _From, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - reply(WriteSeqId - ReadSeqId, State); -handle_call({foldl, Fun, Init, Q}, _From, State) -> - {ok, Result, State1} = internal_foldl(Q, Fun, Init, State), - reply(Result, State1); -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; %% gen_server now calls terminate -handle_call(stop_vaporise, _From, State) -> - State1 = #dqstate { file_summary = FileSummary, - sequences = Sequences } = - shutdown(State), %% tidy up file handles early - {atomic, ok} = mnesia:clear_table(rabbit_disk_queue), - true = ets:delete(FileSummary), - true = ets:delete(Sequences), - lists:foreach(fun file:delete/1, filelib:wildcard(form_filename("*"))), - {stop, normal, ok, - State1 #dqstate { current_file_handle = undefined, - read_file_handles = {dict:new(), gb_trees:empty()}}}; - %% gen_server now calls terminate, which then calls shutdown -handle_call(to_disk_only_mode, _From, State) -> - reply(ok, to_disk_only_mode(State)); -handle_call(to_ram_disk_mode, _From, State) -> - reply(ok, to_ram_disk_mode(State)); -handle_call({delete_non_durable_queues, DurableQueues}, _From, State) -> - {ok, State1} = internal_delete_non_durable_queues(DurableQueues, State), - reply(ok, State1); -handle_call(cache_info, _From, State = #dqstate { message_cache = Cache }) -> - reply(ets:info(Cache), State). - -handle_cast({publish, Q, Message, IsDelivered}, State) -> - {ok, _MsgSeqId, State1} = internal_publish(Q, Message, IsDelivered, State), - noreply(State1); -handle_cast({ack, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_ack(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({auto_ack_next_message, Q}, State) -> - {ok, State1} = internal_auto_ack(Q, State), - noreply(State1); -handle_cast({tx_publish, Message}, State) -> - {ok, State1} = internal_tx_publish(Message, State), - noreply(State1); -handle_cast({tx_cancel, MsgIds}, State) -> - {ok, State1} = internal_tx_cancel(MsgIds, State), - noreply(State1); -handle_cast({requeue, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_requeue(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({requeue_next_n, Q, N}, State) -> - {ok, State1} = internal_requeue_next_n(Q, N, State), - noreply(State1); -handle_cast({delete_queue, Q}, State) -> - {ok, State1} = internal_delete_queue(Q, State), - noreply(State1); -handle_cast(filesync, State) -> - noreply(sync_current_file_handle(State)); -handle_cast({set_mode, Mode}, State) -> - noreply((case Mode of - disk -> fun to_disk_only_mode/1; - mixed -> fun to_ram_disk_mode/1 - end)(State)); -handle_cast(report_memory, State) -> - %% call noreply1/2, not noreply/1/2, as we don't want to restart the - %% memory_report_timer - %% by unsetting the timer, we force a report on the next normal message - noreply1(State #dqstate { memory_report_timer = undefined }); -handle_cast({prefetch, Q, From}, State) -> - {ok, Result, State1} = internal_deliver(Q, true, true, false, State), - Cont = rabbit_misc:with_exit_handler( - fun () -> false end, - fun () -> - ok = rabbit_queue_prefetcher:publish(From, Result), - true - end), - State3 = - case Cont of - true -> - case internal_deliver(Q, false, false, true, State1) of - {ok, empty, State2} -> State2; - {ok, {_MsgId, _IsPersistent, _Delivered, _MsgSeqId, _Rem}, - State2} -> State2 - end; - false -> State1 - end, - noreply(State3). - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(timeout, State) -> - %% must have commit_timer set, so timeout was 0, and we're not hibernating - noreply(sync_current_file_handle(State)). - -handle_pre_hibernate(State) -> - %% don't use noreply/1 or noreply1/1 as they'll restart the memory timer - ok = report_memory(true, State), - {hibernate, stop_memory_timer(State)}. - -terminate(_Reason, State) -> - shutdown(State). - -shutdown(State = #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - current_file_handle = FileHdl, - read_file_handles = {ReadHdls, _ReadHdlsAge} - }) -> - %% deliberately ignoring return codes here - State1 = stop_commit_timer(stop_memory_timer(State)), - dets:close(MsgLocationDets), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - true = ets:delete_all_objects(MsgLocationEts), - case FileHdl of - undefined -> ok; - _ -> sync_current_file_handle(State), - file:close(FileHdl) - end, - dict:fold(fun (_File, Hdl, _Acc) -> - file:close(Hdl) - end, ok, ReadHdls), - State1 #dqstate { current_file_handle = undefined, - current_dirty = false, - read_file_handles = {dict:new(), gb_trees:empty()}, - memory_report_timer = undefined - }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%% ---- UTILITY FUNCTIONS ---- - -stop_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #dqstate { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { memory_report_timer = undefined }. - -start_memory_timer() -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_disk_queue, report_memory, []), - TRef. - -start_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - ok = report_memory(false, State), - State #dqstate { memory_report_timer = start_memory_timer() }; -start_memory_timer(State) -> - State. - -report_memory(Hibernating, State) -> - Bytes = memory_use(State), - rabbit_queue_mode_manager:report_memory(self(), trunc(2.5 * Bytes), - Hibernating). - -memory_use(#dqstate { operation_mode = ram_disk, - file_summary = FileSummary, - sequences = Sequences, - msg_location_ets = MsgLocationEts, - message_cache = Cache, - wordsize = WordSize - }) -> - WordSize * (mnesia:table_info(rabbit_disk_queue, memory) + - ets:info(MsgLocationEts, memory) + - ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory)); -memory_use(#dqstate { operation_mode = disk_only, - file_summary = FileSummary, - sequences = Sequences, - msg_location_dets = MsgLocationDets, - message_cache = Cache, - wordsize = WordSize, - mnesia_bytes_per_record = MnesiaBytesPerRecord, - ets_bytes_per_record = EtsBytesPerRecord }) -> - MnesiaSizeEstimate = - mnesia:table_info(rabbit_disk_queue, size) * MnesiaBytesPerRecord, - MsgLocationSizeEstimate = - dets:info(MsgLocationDets, size) * EtsBytesPerRecord, - (WordSize * (ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory))) + - rabbit_misc:ceil(MnesiaSizeEstimate) + - rabbit_misc:ceil(MsgLocationSizeEstimate). - -to_disk_only_mode(State = #dqstate { operation_mode = disk_only }) -> - State; -to_disk_only_mode(State = #dqstate { operation_mode = ram_disk, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - wordsize = WordSize }) -> - rabbit_log:info("Converting disk queue to disk only mode~n", []), - MnesiaMemoryBytes = WordSize * mnesia:table_info(rabbit_disk_queue, memory), - MnesiaSize = lists:max([1, mnesia:table_info(rabbit_disk_queue, size)]), - EtsMemoryBytes = WordSize * ets:info(MsgLocationEts, memory), - EtsSize = lists:max([1, ets:info(MsgLocationEts, size)]), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_only_copies), - ok = dets:from_ets(MsgLocationDets, MsgLocationEts), - true = ets:delete_all_objects(MsgLocationEts), - garbage_collect(), - State #dqstate { operation_mode = disk_only, - mnesia_bytes_per_record = MnesiaMemoryBytes / MnesiaSize, - ets_bytes_per_record = EtsMemoryBytes / EtsSize }. - -to_ram_disk_mode(State = #dqstate { operation_mode = ram_disk }) -> - State; -to_ram_disk_mode(State = #dqstate { operation_mode = disk_only, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts }) -> - rabbit_log:info("Converting disk queue to ram disk mode~n", []), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_copies), - true = ets:from_dets(MsgLocationEts, MsgLocationDets), - ok = dets:delete_all_objects(MsgLocationDets), - garbage_collect(), - State #dqstate { operation_mode = ram_disk, - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined }. - -noreply(NewState) -> - noreply1(start_memory_timer(NewState)). - -noreply1(NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {noreply, NewState, hibernate}; -noreply1(NewState = #dqstate { commit_timer_ref = undefined }) -> - {noreply, start_commit_timer(NewState), 0}; -noreply1(NewState = #dqstate { on_sync_txns = [] }) -> - {noreply, stop_commit_timer(NewState), hibernate}; -noreply1(NewState) -> - {noreply, NewState, 0}. - -reply(Reply, NewState) -> - reply1(Reply, start_memory_timer(NewState)). - -reply1(Reply, NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {reply, Reply, NewState, hibernate}; -reply1(Reply, NewState = #dqstate { commit_timer_ref = undefined }) -> - {reply, Reply, start_commit_timer(NewState), 0}; -reply1(Reply, NewState = #dqstate { on_sync_txns = [] }) -> - {reply, Reply, stop_commit_timer(NewState), hibernate}; -reply1(Reply, NewState) -> - {reply, Reply, NewState, 0}. - -form_filename(Name) -> - filename:join(base_directory(), Name). - -base_directory() -> - filename:join(mnesia:system_info(directory), "rabbit_disk_queue/"). - -dets_ets_lookup(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - dets:lookup(MsgLocationDets, Key); -dets_ets_lookup(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - ets:lookup(MsgLocationEts, Key). - -dets_ets_delete(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - ok = dets:delete(MsgLocationDets, Key); -dets_ets_delete(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - true = ets:delete(MsgLocationEts, Key), - ok. - -dets_ets_insert(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - ok = dets:insert(MsgLocationDets, Obj); -dets_ets_insert(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert(MsgLocationEts, Obj), - ok. - -dets_ets_insert_new(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - true = dets:insert_new(MsgLocationDets, Obj); -dets_ets_insert_new(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert_new(MsgLocationEts, Obj). - -dets_ets_match_object(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - dets:match_object(MsgLocationDets, Obj); -dets_ets_match_object(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - ets:match_object(MsgLocationEts, Obj). - -get_read_handle(File, Offset, State = - #dqstate { read_file_handles = {ReadHdls, ReadHdlsAge}, - read_file_handles_limit = ReadFileHandlesLimit, - current_file_name = CurName, - current_dirty = IsDirty, - last_sync_offset = SyncOffset - }) -> - State1 = if CurName =:= File andalso IsDirty andalso Offset >= SyncOffset -> - sync_current_file_handle(State); - true -> State - end, - Now = now(), - {FileHdl, ReadHdls1, ReadHdlsAge1} = - case dict:find(File, ReadHdls) of - error -> - {ok, Hdl} = file:open(form_filename(File), - [read, raw, binary, - read_ahead]), - case dict:size(ReadHdls) < ReadFileHandlesLimit of - true -> - {Hdl, ReadHdls, ReadHdlsAge}; - _False -> - {Then, OldFile, ReadHdlsAge2} = - gb_trees:take_smallest(ReadHdlsAge), - {ok, {OldHdl, Then}} = - dict:find(OldFile, ReadHdls), - ok = file:close(OldHdl), - {Hdl, dict:erase(OldFile, ReadHdls), ReadHdlsAge2} - end; - {ok, {Hdl, Then}} -> - {Hdl, ReadHdls, gb_trees:delete(Then, ReadHdlsAge)} - end, - ReadHdls2 = dict:store(File, {FileHdl, Now}, ReadHdls1), - ReadHdlsAge3 = gb_trees:enter(Now, File, ReadHdlsAge1), - {FileHdl, - State1 #dqstate { read_file_handles = {ReadHdls2, ReadHdlsAge3} }}. - -sequence_lookup(Sequences, Q) -> - case ets:lookup(Sequences, Q) of - [] -> - {0, 0}; - [{Q, ReadSeqId, WriteSeqId}] -> - {ReadSeqId, WriteSeqId} - end. - -start_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, filesync, []), - State #dqstate { commit_timer_ref = TRef }. - -stop_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - State; -stop_commit_timer(State = #dqstate { commit_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { commit_timer_ref = undefined }. - -sync_current_file_handle(State = #dqstate { current_dirty = false, - on_sync_txns = [] }) -> - State; -sync_current_file_handle(State = #dqstate { current_file_handle = CurHdl, - current_dirty = IsDirty, - current_offset = CurOffset, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - SyncOffset1 = case IsDirty of - true -> ok = file:sync(CurHdl), - CurOffset; - false -> SyncOffset - end, - State1 = lists:foldl(fun internal_do_tx_commit/2, State, lists:reverse(Txns)), - State1 #dqstate { current_dirty = false, on_sync_txns = [], - last_sync_offset = SyncOffset1 }. - -msg_to_bin(Msg = #basic_message { content = Content }) -> - ClearedContent = rabbit_binary_parser:clear_decoded_content(Content), - term_to_binary(Msg #basic_message { content = ClearedContent }). - -bin_to_msg(MsgBin) -> - binary_to_term(MsgBin). - -remove_cache_entry(MsgId, #dqstate { message_cache = Cache }) -> - true = ets:delete(Cache, MsgId), - ok. - -fetch_and_increment_cache(MsgId, #dqstate { message_cache = Cache }) -> - case ets:lookup(Cache, MsgId) of - [] -> - not_found; - [{MsgId, Message, MsgSize, _RefCount}] -> - NewRefCount = ets:update_counter(Cache, MsgId, {4, 1}), - {Message, MsgSize, NewRefCount} - end. - -decrement_cache(MsgId, #dqstate { message_cache = Cache }) -> - true = try case ets:update_counter(Cache, MsgId, {4, -1}) of - N when N =< 0 -> true = ets:delete(Cache, MsgId); - _N -> true - end - catch error:badarg -> - %% MsgId is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message in mixed queue) - true - end, - ok. - -insert_into_cache(Message = #basic_message { guid = MsgId }, MsgSize, - Forced, State = #dqstate { message_cache = Cache }) -> - case cache_is_full(State) of - true -> ok; - false -> Count = case Forced of - true -> 0; - false -> 1 - end, - true = ets:insert_new(Cache, {MsgId, Message, - MsgSize, Count}), - ok - end. - -cache_is_full(#dqstate { message_cache = Cache }) -> - ets:info(Cache, memory) > ?CACHE_MAX_SIZE. - -%% ---- INTERNAL RAW FUNCTIONS ---- - -internal_deliver(Q, ReadMsg, FakeDeliver, Advance, - State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, empty, State}; - {ReadSeqId, WriteSeqId} when WriteSeqId >= ReadSeqId -> - Remaining = WriteSeqId - ReadSeqId - 1, - {ok, Result, State1} = - internal_read_message( - Q, ReadSeqId, ReadMsg, FakeDeliver, false, State), - true = case Advance of - true -> ets:insert(Sequences, - {Q, ReadSeqId+1, WriteSeqId}); - false -> true - end, - {ok, - case Result of - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}} -> - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}, - Remaining}; - {Message, BodySize, Delivered, {MsgId, ReadSeqId}} -> - {Message, BodySize, Delivered, {MsgId, ReadSeqId}, - Remaining} - end, State1} - end. - -internal_foldl(Q, Fun, Init, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - internal_foldl(Q, WriteSeqId, Fun, State, Init, ReadSeqId). - -internal_foldl(_Q, SeqId, _Fun, State, Acc, SeqId) -> - {ok, Acc, State}; -internal_foldl(Q, WriteSeqId, Fun, State, Acc, ReadSeqId) -> - {ok, MsgStuff, State1} - = internal_read_message(Q, ReadSeqId, true, true, false, State), - Acc1 = Fun(MsgStuff, Acc), - internal_foldl(Q, WriteSeqId, Fun, State1, Acc1, ReadSeqId + 1). - -internal_read_message(Q, ReadSeqId, ReadMsg, FakeDeliver, ForceInCache, State) -> - [Obj = - #dq_msg_loc {is_delivered = Delivered, msg_id = MsgId}] = - mnesia:dirty_read(rabbit_disk_queue, {Q, ReadSeqId}), - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - ok = - if FakeDeliver orelse Delivered -> ok; - true -> - mnesia:dirty_write(rabbit_disk_queue, - Obj #dq_msg_loc {is_delivered = true}) - end, - case ReadMsg of - true -> - case fetch_and_increment_cache(MsgId, State) of - not_found -> - {FileHdl, State1} = get_read_handle(File, Offset, State), - {ok, {MsgBody, IsPersistent, BodySize}} = - read_message_at_offset(FileHdl, Offset, TotalSize), - #basic_message { is_persistent=IsPersistent, guid=MsgId } = - Message = bin_to_msg(MsgBody), - ok = if RefCount > 1 orelse ForceInCache -> - insert_into_cache - (Message, BodySize, ForceInCache, State1); - true -> ok - %% it's not in the cache and we only - %% have 1 queue with the message. So - %% don't bother putting it in the - %% cache. - end, - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State1}; - {Message, BodySize, _RefCount} -> - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State} - end; - false -> - {ok, {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}}, State} - end. - -internal_auto_ack(Q, State) -> - case internal_deliver(Q, false, false, true, State) of - {ok, empty, State1} -> {ok, State1}; - {ok, {_MsgId, _IsPersistent, _Delivered, MsgSeqId, _Remaining}, - State1} -> - remove_messages(Q, [MsgSeqId], true, State1) - end. - -internal_ack(Q, MsgSeqIds, State) -> - remove_messages(Q, MsgSeqIds, true, State). - -%% Q is only needed if MnesiaDelete /= false -remove_messages(Q, MsgSeqIds, MnesiaDelete, - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - Files = - lists:foldl( - fun ({MsgId, SeqId}, Files1) -> - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - Files2 = - case RefCount of - 1 -> - ok = dets_ets_delete(State, MsgId), - ok = remove_cache_entry(MsgId, State), - [{File, ValidTotalSize, ContiguousTop, - Left, Right}] = ets:lookup(FileSummary, File), - ContiguousTop1 = - lists:min([ContiguousTop, Offset]), - true = - ets:insert(FileSummary, - {File, (ValidTotalSize-TotalSize- - ?FILE_PACKING_ADJUSTMENT), - ContiguousTop1, Left, Right}), - if CurName =:= File -> Files1; - true -> sets:add_element(File, Files1) - end; - _ when 1 < RefCount -> - ok = decrement_cache(MsgId, State), - ok = dets_ets_insert( - State, {MsgId, RefCount - 1, File, Offset, - TotalSize, IsPersistent}), - Files1 - end, - ok = case MnesiaDelete of - true -> mnesia:dirty_delete(rabbit_disk_queue, - {Q, SeqId}); - txn -> mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write); - _ -> ok - end, - Files2 - end, sets:new(), MsgSeqIds), - State1 = compact(Files, State), - {ok, State1}. - -internal_tx_publish(Message = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, - State = #dqstate { current_file_handle = CurHdl, - current_file_name = CurName, - current_offset = CurOffset, - file_summary = FileSummary - }) -> - case dets_ets_lookup(State, MsgId) of - [] -> - %% New message, lots to do - {ok, TotalSize} = append_message(CurHdl, MsgId, msg_to_bin(Message), - IsPersistent), - true = dets_ets_insert_new - (State, {MsgId, 1, CurName, - CurOffset, TotalSize, IsPersistent}), - [{CurName, ValidTotalSize, ContiguousTop, Left, undefined}] = - ets:lookup(FileSummary, CurName), - ValidTotalSize1 = ValidTotalSize + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - ContiguousTop1 = if CurOffset =:= ContiguousTop -> - %% can't be any holes in this file - ValidTotalSize1; - true -> ContiguousTop - end, - true = ets:insert(FileSummary, {CurName, ValidTotalSize1, - ContiguousTop1, Left, undefined}), - NextOffset = CurOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - maybe_roll_to_new_file( - NextOffset, State #dqstate {current_offset = NextOffset, - current_dirty = true}); - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] -> - %% We already know about it, just update counter - ok = dets_ets_insert(State, {MsgId, RefCount + 1, File, - Offset, TotalSize, IsPersistent}), - {ok, State} - end. - -internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, - State = #dqstate { current_file_name = CurFile, - current_dirty = IsDirty, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - NeedsSync = IsDirty andalso - lists:any(fun ({MsgId, _Delivered}) -> - [{MsgId, _RefCount, File, Offset, - _TotalSize, _IsPersistent}] = - dets_ets_lookup(State, MsgId), - File =:= CurFile andalso Offset >= SyncOffset - end, PubMsgIds), - TxnDetails = {Q, PubMsgIds, AckSeqIds, From}, - case NeedsSync of - true -> - Txns1 = [TxnDetails | Txns], - State #dqstate { on_sync_txns = Txns1 }; - false -> - internal_do_tx_commit(TxnDetails, State) - end. - -internal_do_tx_commit({Q, PubMsgIds, AckSeqIds, From}, - State = #dqstate { sequences = Sequences }) -> - {InitReadSeqId, InitWriteSeqId} = sequence_lookup(Sequences, Q), - WriteSeqId = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {ok, WriteSeqId1} = - lists:foldl( - fun ({MsgId, Delivered}, {ok, SeqId}) -> - {mnesia:write( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, - msg_id = MsgId, - is_delivered = Delivered - }, write), - SeqId + 1} - end, {ok, InitWriteSeqId}, PubMsgIds), - WriteSeqId1 - end), - {ok, State1} = remove_messages(Q, AckSeqIds, true, State), - true = case PubMsgIds of - [] -> true; - _ -> ets:insert(Sequences, {Q, InitReadSeqId, WriteSeqId}) - end, - gen_server2:reply(From, ok), - State1. - -internal_publish(Q, Message = #basic_message { guid = MsgId }, - IsDelivered, State) -> - {ok, State1 = #dqstate { sequences = Sequences }} = - internal_tx_publish(Message, State), - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - ok = mnesia:dirty_write(rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, WriteSeqId}, - msg_id = MsgId, - is_delivered = IsDelivered}), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId + 1}), - {ok, {MsgId, WriteSeqId}, State1}. - -internal_tx_cancel(MsgIds, State) -> - %% we don't need seq ids because we're not touching mnesia, - %% because seqids were never assigned - MsgSeqIds = lists:zip(MsgIds, lists:duplicate(erlang:length(MsgIds), - undefined)), - remove_messages(undefined, MsgSeqIds, false, State). - -internal_requeue(_Q, [], State) -> - {ok, State}; -internal_requeue(Q, MsgSeqIds, State = #dqstate { sequences = Sequences }) -> - %% We know that every seq_id in here is less than the ReadSeqId - %% you'll get if you look up this queue in Sequences (i.e. they've - %% already been delivered). We also know that the rows for these - %% messages are still in rabbit_disk_queue (i.e. they've not been - %% ack'd). - - %% Now, it would be nice if we could adjust the sequence ids in - %% rabbit_disk_queue (mnesia) to create a contiguous block and - %% then drop the ReadSeqId for the queue by the corresponding - %% amount. However, this is not safe because there may be other - %% sequence ids which have been sent out as part of deliveries - %% which are not being requeued. As such, moving things about in - %% rabbit_disk_queue _under_ the current ReadSeqId would result in - %% such sequence ids referring to the wrong messages. - - %% Therefore, the only solution is to take these messages, and to - %% reenqueue them at the top of the queue. Usefully, this only - %% affects the Sequences and rabbit_disk_queue structures - there - %% is no need to physically move the messages about on disk, so - %% MsgLocation and FileSummary stay put (which makes further sense - %% as they have no concept of sequence id anyway). - - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - {WriteSeqId1, Q, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foldl(fun requeue_message/2, {WriteSeqId, Q, []}, - MsgSeqIds) - end), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId1}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State}. - -requeue_message({{MsgId, SeqId}, IsDelivered}, {WriteSeqId, Q, Acc}) -> - [Obj = #dq_msg_loc { is_delivered = true, msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, SeqId}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeqId}, - is_delivered = IsDelivered - }, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write), - {WriteSeqId + 1, Q, [MsgId | Acc]}. - -%% move the next N messages from the front of the queue to the back. -internal_requeue_next_n(Q, N, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - if N >= (WriteSeqId - ReadSeqId) -> {ok, State}; - true -> - {ReadSeqIdN, WriteSeqIdN, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - requeue_next_messages(Q, N, ReadSeqId, WriteSeqId, []) - end - ), - true = ets:insert(Sequences, {Q, ReadSeqIdN, WriteSeqIdN}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State} - end. - -requeue_next_messages(_Q, 0, ReadSeq, WriteSeq, Acc) -> - {ReadSeq, WriteSeq, Acc}; -requeue_next_messages(Q, N, ReadSeq, WriteSeq, Acc) -> - [Obj = #dq_msg_loc { msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, ReadSeq}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeq}}, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, ReadSeq}, write), - requeue_next_messages(Q, N - 1, ReadSeq + 1, WriteSeq + 1, [MsgId | Acc]). - -internal_purge(Q, State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, 0, State}; - {ReadSeqId, WriteSeqId} -> - {MsgSeqIds, WriteSeqId} = - rabbit_misc:unfold( - fun (SeqId) when SeqId == WriteSeqId -> false; - (SeqId) -> - [#dq_msg_loc { msg_id = MsgId }] = - mnesia:dirty_read(rabbit_disk_queue, {Q, SeqId}), - {true, {MsgId, SeqId}, SeqId + 1} - end, ReadSeqId), - true = ets:insert(Sequences, {Q, WriteSeqId, WriteSeqId}), - {ok, State1} = remove_messages(Q, MsgSeqIds, true, State), - {ok, WriteSeqId - ReadSeqId, State1} - end. - -internal_delete_queue(Q, State) -> - {ok, _Count, State1 = #dqstate { sequences = Sequences }} = - internal_purge(Q, State), %% remove everything undelivered - true = ets:delete(Sequences, Q), - %% now remove everything already delivered - Objs = mnesia:dirty_match_object( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, '_'}, - msg_id = '_', - is_delivered = '_' - }), - MsgSeqIds = - lists:map( - fun (#dq_msg_loc { queue_and_seq_id = {_Q, SeqId}, - msg_id = MsgId }) -> - {MsgId, SeqId} end, Objs), - remove_messages(Q, MsgSeqIds, true, State1). - -internal_delete_non_durable_queues( - DurableQueues, State = #dqstate { sequences = Sequences }) -> - ets:foldl( - fun ({Q, _Read, _Write}, {ok, State1}) -> - case sets:is_element(Q, DurableQueues) of - true -> {ok, State1}; - false -> internal_delete_queue(Q, State1) - end - end, {ok, State}, Sequences). - -%% ---- ROLLING OVER THE APPEND FILE ---- - -maybe_roll_to_new_file(Offset, - State = #dqstate { file_size_limit = FileSizeLimit, - current_file_name = CurName, - current_file_handle = CurHdl, - current_file_num = CurNum, - file_summary = FileSummary - } - ) when Offset >= FileSizeLimit -> - State1 = sync_current_file_handle(State), - ok = file:close(CurHdl), - NextNum = CurNum + 1, - NextName = integer_to_list(NextNum) ++ ?FILE_EXTENSION, - {ok, NextHdl} = file:open(form_filename(NextName), - [write, raw, binary, delayed_write]), - ok = preallocate(NextHdl, FileSizeLimit, 0), - true = ets:update_element(FileSummary, CurName, {5, NextName}),%% 5 is Right - true = ets:insert_new(FileSummary, {NextName, 0, 0, CurName, undefined}), - State2 = State1 #dqstate { current_file_name = NextName, - current_file_handle = NextHdl, - current_file_num = NextNum, - current_offset = 0, - last_sync_offset = 0 - }, - {ok, compact(sets:from_list([CurName]), State2)}; -maybe_roll_to_new_file(_, State) -> - {ok, State}. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file:position(Hdl, {bof, FileSizeLimit}), - ok = file:truncate(Hdl), - {ok, FinalPos} = file:position(Hdl, {bof, FinalPos}), - ok. - -%% ---- GARBAGE COLLECTION / COMPACTION / AGGREGATION ---- - -compact(FilesSet, State) -> - %% smallest number, hence eldest, hence left-most, first - Files = lists:sort(sets:to_list(FilesSet)), - %% foldl reverses, so now youngest/right-most first - RemainingFiles = lists:foldl(fun (File, Acc) -> - delete_empty_files(File, Acc, State) - end, [], Files), - lists:foldl(fun combine_file/2, State, lists:reverse(RemainingFiles)). - -combine_file(File, State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - %% the file we're looking at may no longer exist as it may have - %% been deleted within the current GC run - case ets:lookup(FileSummary, File) of - [] -> State; - [FileObj = {File, _ValidData, _ContiguousTop, Left, Right}] -> - GoRight = - fun() -> - case Right of - undefined -> State; - _ when not (CurName == Right) -> - [RightObj] = ets:lookup(FileSummary, Right), - {_, State1} = - adjust_meta_and_combine(FileObj, RightObj, - State), - State1; - _ -> State - end - end, - case Left of - undefined -> - GoRight(); - _ -> [LeftObj] = ets:lookup(FileSummary, Left), - case adjust_meta_and_combine(LeftObj, FileObj, State) of - {true, State1} -> State1; - {false, State} -> GoRight() - end - end - end. - -adjust_meta_and_combine( - LeftObj = {LeftFile, LeftValidData, _LeftContigTop, LeftLeft, RightFile}, - RightObj = {RightFile, RightValidData, _RightContigTop, LeftFile, RightRight}, - State = #dqstate { file_size_limit = FileSizeLimit, - file_summary = FileSummary - }) -> - TotalValidData = LeftValidData + RightValidData, - if FileSizeLimit >= TotalValidData -> - State1 = combine_files(RightObj, LeftObj, State), - %% this could fail if RightRight is undefined - %% left is the 4th field - ets:update_element(FileSummary, RightRight, {4, LeftFile}), - true = ets:insert(FileSummary, {LeftFile, - TotalValidData, TotalValidData, - LeftLeft, - RightRight}), - true = ets:delete(FileSummary, RightFile), - {true, State1}; - true -> {false, State} - end. - -sort_msg_locations_by_offset(Asc, List) -> - Comp = case Asc of - true -> fun erlang:'<'/2; - false -> fun erlang:'>'/2 - end, - lists:sort(fun ({_, _, _, OffA, _, _}, {_, _, _, OffB, _, _}) -> - Comp(OffA, OffB) - end, List). - -truncate_and_extend_file(FileHdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file:position(FileHdl, {bof, Lowpoint}), - ok = file:truncate(FileHdl), - ok = preallocate(FileHdl, Highpoint, Lowpoint). - -combine_files({Source, SourceValid, _SourceContiguousTop, - _SourceLeft, _SourceRight}, - {Destination, DestinationValid, DestinationContiguousTop, - _DestinationLeft, _DestinationRight}, - State1) -> - State = close_file(Source, close_file(Destination, State1)), - {ok, SourceHdl} = - file:open(form_filename(Source), - [read, write, raw, binary, read_ahead, delayed_write]), - {ok, DestinationHdl} = - file:open(form_filename(Destination), - [read, write, raw, binary, read_ahead, delayed_write]), - ExpectedSize = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - if DestinationContiguousTop =:= DestinationValid -> - ok = truncate_and_extend_file(DestinationHdl, - DestinationValid, ExpectedSize); - true -> - Tmp = filename:rootname(Destination) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = - file:open(form_filename(Tmp), - [read, write, raw, binary, - read_ahead, delayed_write]), - Worklist = - lists:dropwhile( - fun ({_, _, _, Offset, _, _}) - when Offset /= DestinationContiguousTop -> - %% it cannot be that Offset == - %% DestinationContiguousTop because if it - %% was then DestinationContiguousTop would - %% have been extended by TotalSize - Offset < DestinationContiguousTop - %% Given expected access patterns, I suspect - %% that the list should be naturally sorted - %% as we require, however, we need to - %% enforce it anyway - end, sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Destination, - '_', '_', '_'}))), - ok = copy_messages( - Worklist, DestinationContiguousTop, DestinationValid, - DestinationHdl, TmpHdl, Destination, State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage from - %% Destination, and MsgLocationDets has been updated to - %% reflect compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file:position(TmpHdl, {bof, 0}), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, ExpectedSize), - {ok, TmpSize} = file:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file:sync(DestinationHdl), - ok = file:close(TmpHdl), - ok = file:delete(form_filename(Tmp)) - end, - SourceWorkList = - sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Source, - '_', '_', '_'})), - ok = copy_messages(SourceWorkList, DestinationValid, ExpectedSize, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file:sync(DestinationHdl), - ok = file:close(SourceHdl), - ok = file:close(DestinationHdl), - ok = file:delete(form_filename(Source)), - State. - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, State) -> - {FinalOffset, BlockStart1, BlockEnd1} = - lists:foldl( - fun ({MsgId, RefCount, _Source, Offset, TotalSize, IsPersistent}, - {CurOffset, BlockStart, BlockEnd}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - Size = TotalSize + ?FILE_PACKING_ADJUSTMENT, - %% update MsgLocationDets to reflect change of file and offset - ok = dets_ets_insert - (State, {MsgId, RefCount, Destination, - CurOffset, TotalSize, IsPersistent}), - NextOffset = CurOffset + Size, - if BlockStart =:= undefined -> - %% base case, called only for the first list elem - {NextOffset, Offset, Offset + Size}; - Offset =:= BlockEnd -> - %% extend the current block because the next - %% msg follows straight on - {NextOffset, BlockStart, BlockEnd + Size}; - true -> - %% found a gap, so actually do the work for - %% the previous block - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file:position(SourceHdl, {bof, BlockStart}), - {ok, BSize} = - file:copy(SourceHdl, DestinationHdl, BSize), - {NextOffset, Offset, Offset + Size} - end - end, {InitOffset, undefined, undefined}, WorkList), - %% do the last remaining block - BSize1 = BlockEnd1 - BlockStart1, - {ok, BlockStart1} = file:position(SourceHdl, {bof, BlockStart1}), - {ok, BSize1} = file:copy(SourceHdl, DestinationHdl, BSize1), - ok. - -close_file(File, State = #dqstate { read_file_handles = - {ReadHdls, ReadHdlsAge} }) -> - case dict:find(File, ReadHdls) of - error -> - State; - {ok, {Hdl, Then}} -> - ok = file:close(Hdl), - State #dqstate { read_file_handles = - { dict:erase(File, ReadHdls), - gb_trees:delete(Then, ReadHdlsAge) } } - end. - -delete_empty_files(File, Acc, #dqstate { file_summary = FileSummary }) -> - [{File, ValidData, _ContiguousTop, Left, Right}] = - ets:lookup(FileSummary, File), - case ValidData of - %% we should NEVER find the current file in here hence right - %% should always be a file, not undefined - 0 -> - case {Left, Right} of - {undefined, _} when not (is_atom(Right)) -> - %% the eldest file is empty. YAY! - %% left is the 4th field - true = - ets:update_element(FileSummary, Right, {4, undefined}); - {_, _} when not (is_atom(Right)) -> - %% left is the 4th field - true = ets:update_element(FileSummary, Right, {4, Left}), - %% right is the 5th field - true = ets:update_element(FileSummary, Left, {5, Right}) - end, - true = ets:delete(FileSummary, File), - ok = file:delete(form_filename(File)), - Acc; - _ -> [File|Acc] - end. - -%% ---- DISK RECOVERY ---- - -add_index() -> - case mnesia:add_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - {aborted,{already_exists,rabbit_disk_queue,_}} -> ok; - E -> E - end. - -del_index() -> - case mnesia:del_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - %% hmm, something weird must be going on, but it's probably - %% not the end of the world - {aborted, {no_exists, rabbit_disk_queue,_}} -> ok; - E1 -> E1 - end. - -load_from_disk(State) -> - %% sorted so that smallest number is first. which also means - %% eldest file (left-most) first - ok = add_index(), - {Files, TmpFiles} = get_disk_queue_files(), - ok = recover_crashed_compactions(Files, TmpFiles), - %% There should be no more tmp files now, so go ahead and load the - %% whole lot - State1 = load_messages(undefined, Files, State), - %% Finally, check there is nothing in mnesia which we haven't - %% loaded - State2 = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {State6, FinalQ, MsgSeqIds2, _Len} = - mnesia:foldl( - fun (#dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = {Q, SeqId} }, - {State3, OldQ, MsgSeqIds, Len}) -> - {State4, MsgSeqIds1, Len1} = - case {OldQ == Q, MsgSeqIds} of - {true, _} when Len < ?BATCH_SIZE -> - {State3, MsgSeqIds, Len}; - {false, []} -> {State3, MsgSeqIds, Len}; - {_, _} -> - {ok, State5} = - remove_messages(Q, MsgSeqIds, - txn, State3), - {State5, [], 0} - end, - case dets_ets_lookup(State4, MsgId) of - [] -> ok = mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write), - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, true}] -> - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, false}] -> - {State4, Q, - [{MsgId, SeqId} | MsgSeqIds1], Len1+1} - end - end, {State1, undefined, [], 0}, rabbit_disk_queue), - {ok, State7} = - remove_messages(FinalQ, MsgSeqIds2, txn, State6), - State7 - end), - State8 = extract_sequence_numbers(State2), - ok = del_index(), - {ok, State8}. - -extract_sequence_numbers(State = #dqstate { sequences = Sequences }) -> - true = rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:read_lock_table(rabbit_disk_queue), - mnesia:foldl( - fun (#dq_msg_loc { queue_and_seq_id = {Q, SeqId} }, true) -> - NextWrite = SeqId + 1, - case ets:lookup(Sequences, Q) of - [] -> ets:insert_new(Sequences, - {Q, SeqId, NextWrite}); - [Orig = {Q, Read, Write}] -> - Repl = {Q, lists:min([Read, SeqId]), - lists:max([Write, NextWrite])}, - case Orig == Repl of - true -> true; - false -> ets:insert(Sequences, Repl) - end - end - end, true, rabbit_disk_queue) - end), - ok = remove_gaps_in_sequences(State), - State. - -remove_gaps_in_sequences(#dqstate { sequences = Sequences }) -> - %% read the comments at internal_requeue. - - %% Because we are at startup, we know that no sequence ids have - %% been issued (or at least, they were, but have been - %% forgotten). Therefore, we can nicely shuffle up and not - %% worry. Note that I'm choosing to shuffle up, but alternatively - %% we could shuffle downwards. However, I think there's greater - %% likelihood of gaps being at the bottom rather than the top of - %% the queue, so shuffling up should be the better bet. - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foreach( - fun ({Q, ReadSeqId, WriteSeqId}) -> - Gap = shuffle_up(Q, ReadSeqId-1, WriteSeqId-1, 0), - ReadSeqId1 = ReadSeqId + Gap, - true = ets:insert(Sequences, - {Q, ReadSeqId1, WriteSeqId}) - end, ets:match_object(Sequences, '_')) - end), - ok. - -shuffle_up(_Q, SeqId, SeqId, Gap) -> - Gap; -shuffle_up(Q, BaseSeqId, SeqId, Gap) -> - GapInc = - case mnesia:read(rabbit_disk_queue, {Q, SeqId}, write) of - [] -> 1; - [Obj] -> - case Gap of - 0 -> ok; - _ -> mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc { - queue_and_seq_id = {Q, SeqId + Gap }}, - write), - mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write) - end, - 0 - end, - shuffle_up(Q, BaseSeqId, SeqId - 1, Gap + GapInc). - -load_messages(undefined, [], - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName }) -> - true = ets:insert_new(FileSummary, {CurName, 0, 0, undefined, undefined}), - State; -load_messages(Left, [], State) -> - Num = list_to_integer(filename:rootname(Left)), - Offset = - case dets_ets_match_object(State, {'_', '_', Left, '_', '_', '_'}) of - [] -> 0; - L -> - [ {_MsgId, _RefCount, Left, MaxOffset, TotalSize, _IsPersistent} - | _ ] = sort_msg_locations_by_offset(false, L), - MaxOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT - end, - State #dqstate { current_file_num = Num, current_file_name = Left, - current_offset = Offset }; -load_messages(Left, [File|Files], - State = #dqstate { file_summary = FileSummary }) -> - %% [{MsgId, TotalSize, FileOffset}] - {ok, Messages} = scan_file_for_valid_messages(form_filename(File)), - {ValidMessagesRev, ValidTotalSize} = lists:foldl( - fun (Obj = {MsgId, IsPersistent, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) of - 0 -> {VMAcc, VTSAcc}; - RefCount -> - true = dets_ets_insert_new - (State, {MsgId, RefCount, File, - Offset, TotalSize, IsPersistent}), - {[Obj | VMAcc], - VTSAcc + TotalSize + ?FILE_PACKING_ADJUSTMENT - } - end - end, {[], 0}, Messages), - %% foldl reverses lists and find_contiguous_block_prefix needs - %% elems in the same order as from scan_file_for_valid_messages - {ContiguousTop, _} = find_contiguous_block_prefix( - lists:reverse(ValidMessagesRev)), - Right = case Files of - [] -> undefined; - [F|_] -> F - end, - true = ets:insert_new(FileSummary, - {File, ValidTotalSize, ContiguousTop, Left, Right}), - load_messages(File, Files, State). - -%% ---- DISK RECOVERY OF FAILED COMPACTION ---- - -recover_crashed_compactions(Files, TmpFiles) -> - lists:foreach(fun (TmpFile) -> - ok = recover_crashed_compactions1(Files, TmpFile) end, - TmpFiles), - ok. - -verify_messages_in_mnesia(MsgIds) -> - lists:foreach( - fun (MsgId) -> - true = 0 < erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) - end, MsgIds). - -grab_msg_id({MsgId, _IsPersistent, _TotalSize, _FileOffset}) -> - MsgId. - -recover_crashed_compactions1(Files, TmpFile) -> - NonTmpRelatedFile = filename:rootname(TmpFile) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFile, Files), - %% [{MsgId, TotalSize, FileOffset}] - {ok, UncorruptedMessagesTmp} = - scan_file_for_valid_messages(form_filename(TmpFile)), - MsgIdsTmp = lists:map(fun grab_msg_id/1, UncorruptedMessagesTmp), - %% all of these messages should appear in the mnesia table, - %% otherwise they wouldn't have been copied out - verify_messages_in_mnesia(MsgIdsTmp), - {ok, UncorruptedMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIds = lists:map(fun grab_msg_id/1, UncorruptedMessages), - %% 1) It's possible that everything in the tmp file is also in the - %% main file such that the main file is (prefix ++ - %% tmpfile). This means that compaction failed immediately - %% prior to the final step of deleting the tmp file. Plan: just - %% delete the tmp file - %% 2) It's possible that everything in the tmp file is also in the - %% main file but with holes throughout (or just somthing like - %% main = (prefix ++ hole ++ tmpfile)). This means that - %% compaction wrote out the tmp file successfully and then - %% failed. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 3) It's possible that everything in the tmp file is also in the - %% main file but such that the main file does not end with tmp - %% file (and there are valid messages in the suffix; main = - %% (prefix ++ tmpfile[with extra holes?] ++ suffix)). This - %% means that compaction failed as we were writing out the tmp - %% file. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 4) It's possible that there are messages in the tmp file which - %% are not in the main file. This means that writing out the - %% tmp file succeeded, but then we failed as we were copying - %% them back over to the main file, after truncating the main - %% file. As the main file has already been truncated, it should - %% consist only of valid messages. Plan: Truncate the main file - %% back to before any of the files in the tmp file and copy - %% them over again - case lists:all(fun (MsgId) -> lists:member(MsgId, MsgIds) end, MsgIdsTmp) of - true -> %% we're in case 1, 2 or 3 above. Just delete the tmp file - %% note this also catches the case when the tmp file - %% is empty - ok = file:delete(TmpFile); - _False -> - %% we're in case 4 above. Check that everything in the - %% main file is a valid message in mnesia - verify_messages_in_mnesia(MsgIds), - %% The main file should be contiguous - {Top, MsgIds} = find_contiguous_block_prefix(UncorruptedMessages), - %% we should have that none of the messages in the prefix - %% are in the tmp file - true = lists:all(fun (MsgId) -> - not (lists:member(MsgId, MsgIdsTmp)) - end, MsgIds), - {ok, MainHdl} = file:open(form_filename(NonTmpRelatedFile), - [write, raw, binary, delayed_write]), - {ok, Top} = file:position(MainHdl, Top), - %% wipe out any rubbish at the end of the file - ok = file:truncate(MainHdl), - %% there really could be rubbish at the end of the file - - %% we could have failed after the extending truncate. - %% Remember the head of the list will be the highest entry - %% in the file - [{_, _, TmpTopTotalSize, TmpTopOffset}|_] = UncorruptedMessagesTmp, - TmpSize = TmpTopOffset + TmpTopTotalSize + ?FILE_PACKING_ADJUSTMENT, - ExpectedAbsPos = Top + TmpSize, - {ok, ExpectedAbsPos} = file:position(MainHdl, {cur, TmpSize}), - %% and now extend the main file as big as necessary in a - %% single move if we run out of disk space, this truncate - %% could fail, but we still aren't risking losing data - ok = file:truncate(MainHdl), - {ok, TmpHdl} = file:open(form_filename(TmpFile), - [read, raw, binary, read_ahead]), - {ok, TmpSize} = file:copy(TmpHdl, MainHdl, TmpSize), - ok = file:close(MainHdl), - ok = file:close(TmpHdl), - ok = file:delete(TmpFile), - - {ok, MainMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIdsMain = lists:map(fun grab_msg_id/1, MainMessages), - %% check that everything in MsgIds is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIds), - %% check that everything in MsgIdsTmp is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIdsTmp) - end, - ok. - -%% this assumes that the messages are ordered such that the highest -%% address is at the head of the list. This matches what -%% scan_file_for_valid_messages produces -find_contiguous_block_prefix([]) -> {0, []}; -find_contiguous_block_prefix([ {MsgId, _IsPersistent, TotalSize, Offset} - | Tail]) -> - case find_contiguous_block_prefix(Tail, Offset, [MsgId]) of - {ok, Acc} -> {Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - lists:reverse(Acc)}; - Res -> Res - end. -find_contiguous_block_prefix([], 0, Acc) -> - {ok, Acc}; -find_contiguous_block_prefix([], _N, _Acc) -> - {0, []}; -find_contiguous_block_prefix([{MsgId, _IsPersistent, TotalSize, Offset} | Tail], - ExpectedOffset, Acc) - when ExpectedOffset =:= Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT -> - find_contiguous_block_prefix(Tail, Offset, [MsgId|Acc]); -find_contiguous_block_prefix(List, _ExpectedOffset, _Acc) -> - find_contiguous_block_prefix(List). - -file_name_sort(A, B) -> - ANum = list_to_integer(filename:rootname(A)), - BNum = list_to_integer(filename:rootname(B)), - ANum < BNum. - -get_disk_queue_files() -> - DQFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION, base_directory()), - DQFilesSorted = lists:sort(fun file_name_sort/2, DQFiles), - DQTFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION_TMP, base_directory()), - DQTFilesSorted = lists:sort(fun file_name_sort/2, DQTFiles), - {DQFilesSorted, DQTFilesSorted}. - -%% ---- RAW READING AND WRITING OF FILES ---- - -append_message(FileHdl, MsgId, MsgBody, IsPersistent) when is_binary(MsgBody) -> - BodySize = size(MsgBody), - MsgIdBin = term_to_binary(MsgId), - MsgIdBinSize = size(MsgIdBin), - TotalSize = BodySize + MsgIdBinSize, - StopByte = case IsPersistent of - true -> ?WRITE_OK_PERSISTENT; - false -> ?WRITE_OK_TRANSIENT - end, - case file:write(FileHdl, <>) of - ok -> {ok, TotalSize}; - KO -> KO - end. - -read_message_at_offset(FileHdl, Offset, TotalSize) -> - TotalSizeWriteOkBytes = TotalSize + 1, - case file:position(FileHdl, {bof, Offset}) of - {ok, Offset} -> - case file:read(FileHdl, TotalSize + ?FILE_PACKING_ADJUSTMENT) of - {ok, <>} -> - BodySize = TotalSize - MsgIdBinSize, - case Rest of - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_TRANSIENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, false, BodySize}}; - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_PERSISTENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, true, BodySize}} - end; - KO -> KO - end; - KO -> KO - end. - -scan_file_for_valid_messages(File) -> - {ok, Hdl} = file:open(File, [raw, binary, read]), - Valid = scan_file_for_valid_messages(Hdl, 0, []), - %% if something really bad's happened, the close could fail, but ignore - file:close(Hdl), - Valid. - -scan_file_for_valid_messages(FileHdl, Offset, Acc) -> - case read_next_file_entry(FileHdl, Offset) of - {ok, eof} -> {ok, Acc}; - {ok, {corrupted, NextOffset}} -> - scan_file_for_valid_messages(FileHdl, NextOffset, Acc); - {ok, {ok, MsgId, IsPersistent, TotalSize, NextOffset}} -> - scan_file_for_valid_messages( - FileHdl, NextOffset, - [{MsgId, IsPersistent, TotalSize, Offset} | Acc]); - _KO -> - %% bad message, but we may still have recovered some valid messages - {ok, Acc} - end. - -read_next_file_entry(FileHdl, Offset) -> - TwoIntegers = 2 * ?INTEGER_SIZE_BYTES, - case file:read(FileHdl, TwoIntegers) of - {ok, - <>} -> - case {TotalSize =:= 0, MsgIdBinSize =:= 0} of - {true, _} -> {ok, eof}; %% Nothing we can do other than stop - {false, true} -> - %% current message corrupted, try skipping past it - ExpectedAbsPos = - Offset + ?FILE_PACKING_ADJUSTMENT + TotalSize, - case file:position(FileHdl, {cur, TotalSize + 1}) of - {ok, ExpectedAbsPos} -> - {ok, {corrupted, ExpectedAbsPos}}; - {ok, _SomeOtherPos} -> - {ok, eof}; %% seek failed, so give up - KO -> KO - end; - {false, false} -> %% all good, let's continue - case file:read(FileHdl, MsgIdBinSize) of - {ok, <>} -> - ExpectedAbsPos = Offset + TwoIntegers + TotalSize, - case file:position(FileHdl, - {cur, TotalSize - MsgIdBinSize} - ) of - {ok, ExpectedAbsPos} -> - NextOffset = Offset + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - case file:read(FileHdl, 1) of - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - false, TotalSize, NextOffset}}; - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - true, TotalSize, NextOffset}}; - {ok, _SomeOtherData} -> - {ok, {corrupted, NextOffset}}; - KO -> KO - end; - {ok, _SomeOtherPos} -> - %% seek failed, so give up - {ok, eof}; - KO -> KO - end; - eof -> {ok, eof}; - KO -> KO - end - end; - eof -> {ok, eof}; - KO -> KO - end. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl index 3aa2989a..2be00503 100644 --- a/src/rabbit_guid.erl +++ b/src/rabbit_guid.erl @@ -42,7 +42,6 @@ terminate/2, code_change/3]). -define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_guid"). -record(state, {serial}). @@ -60,24 +59,17 @@ %%---------------------------------------------------------------------------- start_link() -> + %% The persister can get heavily loaded, and we don't want that to + %% impact guid generation. We therefore keep the serial in a + %% separate process rather than calling rabbit_persister:serial/0 + %% directly in the functions below. gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(mnesia:system_info(directory), ?SERIAL_FILENAME), - Serial = case file:read_file(Filename) of - {ok, Content} -> - binary_to_term(Content); - {error, _} -> - 0 - end, - ok = file:write_file(Filename, term_to_binary(Serial + 1)), - Serial. + [rabbit_persister:serial()], []). %% generate a guid that is monotonically increasing per process. %% %% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. +%% persistent message store hasn't been deleted. guid() -> %% We don't use erlang:now() here because a) it may return %% duplicates when the system clock has been rewound prior to a @@ -85,7 +77,7 @@ guid() -> %% now() to move ahead of the system time), and b) it is really %% slow since it takes a global lock and makes a system call. %% - %% A persisted serial number, in combination with self/0 (which + %% rabbit_persister:serial/0, in combination with self/0 (which %% includes the node name) uniquely identifies a process in space %% and time. We combine that with a process-local counter to give %% us a GUID that is monotonically increasing per process. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index c328c111..abf4c7cc 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -53,7 +53,6 @@ -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, keygets/2]). -import(mnesia). -import(lists). @@ -117,11 +116,7 @@ -spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). -spec(start_applications/1 :: ([atom()]) -> 'ok'). -spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> number()). --spec(keygets/2 :: ([({K, V} | {K, non_neg_integer(), V})], [any()]) -> - [({K, V} | any())]). - + -endif. %%---------------------------------------------------------------------------- @@ -365,8 +360,7 @@ dirty_foreach_key1(F, TableName, K) -> end. dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, - {file, FileName}]), + {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, {file, FileName}]), dirty_dump_log1(LH, disk_log:chunk(LH, start)), disk_log:close(LH). @@ -450,33 +444,3 @@ stop_applications(Apps) -> cannot_stop_application, Apps). -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N - T of - 0 -> N; - _ -> 1 + T - end. - -keygets(Keys, KeyList) -> - lists:reverse( - lists:foldl( - fun({Key, Pos, Default}, Acc) -> - case lists:keysearch(Key, Pos, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end; - ({Key, Default}, Acc) -> - case lists:keysearch(Key, 1, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end - end, [], Keys)). diff --git a/src/rabbit_mixed_queue.erl b/src/rabbit_mixed_queue.erl deleted file mode 100644 index 4b0810a8..00000000 --- a/src/rabbit_mixed_queue.erl +++ /dev/null @@ -1,596 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_mixed_queue). - --include("rabbit.hrl"). - --export([init/2]). - --export([publish/2, publish_delivered/2, deliver/1, ack/2, - tx_publish/2, tx_commit/3, tx_cancel/2, requeue/2, purge/1, - length/1, is_empty/1, delete_queue/1, maybe_prefetch/1]). - --export([to_disk_only_mode/2, to_mixed_mode/2, info/1, - estimate_queue_memory_and_reset_counters/1]). - --record(mqstate, { mode, - msg_buf, - queue, - is_durable, - length, - memory_size, - memory_gain, - memory_loss, - prefetcher - } - ). - --define(TO_DISK_MAX_FLUSH_SIZE, 100000). - --ifdef(use_specs). - --type(mode() :: ( 'disk' | 'mixed' )). --type(mqstate() :: #mqstate { mode :: mode(), - msg_buf :: queue(), - queue :: queue_name(), - is_durable :: bool(), - length :: non_neg_integer(), - memory_size :: (non_neg_integer() | 'undefined'), - memory_gain :: (non_neg_integer() | 'undefined'), - memory_loss :: (non_neg_integer() | 'undefined'), - prefetcher :: (pid() | 'undefined') - }). --type(acktag() :: ( 'noack' | { non_neg_integer(), non_neg_integer() })). --type(okmqs() :: {'ok', mqstate()}). - --spec(init/2 :: (queue_name(), bool()) -> okmqs()). --spec(publish/2 :: (message(), mqstate()) -> okmqs()). --spec(publish_delivered/2 :: (message(), mqstate()) -> - {'ok', acktag(), mqstate()}). --spec(deliver/1 :: (mqstate()) -> - {('empty' | {message(), bool(), acktag(), non_neg_integer()}), - mqstate()}). --spec(ack/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(tx_publish/2 :: (message(), mqstate()) -> okmqs()). --spec(tx_commit/3 :: ([message()], [acktag()], mqstate()) -> okmqs()). --spec(tx_cancel/2 :: ([message()], mqstate()) -> okmqs()). --spec(requeue/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(purge/1 :: (mqstate()) -> okmqs()). - --spec(delete_queue/1 :: (mqstate()) -> {'ok', mqstate()}). - --spec(length/1 :: (mqstate()) -> non_neg_integer()). --spec(is_empty/1 :: (mqstate()) -> bool()). - --spec(to_disk_only_mode/2 :: ([message()], mqstate()) -> okmqs()). --spec(to_mixed_mode/2 :: ([message()], mqstate()) -> okmqs()). - --spec(estimate_queue_memory_and_reset_counters/1 :: (mqstate()) -> - {mqstate(), non_neg_integer(), non_neg_integer(), - non_neg_integer()}). --spec(info/1 :: (mqstate()) -> mode()). - --endif. - -init(Queue, IsDurable) -> - Len = rabbit_disk_queue:length(Queue), - MsgBuf = inc_queue_length(Queue, queue:new(), Len), - Size = rabbit_disk_queue:foldl( - fun ({Msg = #basic_message { is_persistent = true }, - _Size, _IsDelivered, _AckTag}, Acc) -> - Acc + size_of_message(Msg) - end, 0, Queue), - {ok, #mqstate { mode = disk, msg_buf = MsgBuf, queue = Queue, - is_durable = IsDurable, length = Len, - memory_size = Size, memory_gain = undefined, - memory_loss = undefined, prefetcher = undefined }}. - -size_of_message( - #basic_message { content = #content { payload_fragments_rev = Payload }}) -> - lists:foldl(fun (Frag, SumAcc) -> - SumAcc + size(Frag) - end, 0, Payload). - -to_disk_only_mode(_TxnMessages, State = #mqstate { mode = disk }) -> - {ok, State}; -to_disk_only_mode(TxnMessages, State = - #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, prefetcher = Prefetcher - }) -> - rabbit_log:info("Converting queue to disk only mode: ~p~n", [Q]), - State1 = State #mqstate { mode = disk }, - {MsgBuf1, State2} = - case Prefetcher of - undefined -> {MsgBuf, State1}; - _ -> - case rabbit_queue_prefetcher:drain_and_stop(Prefetcher) of - empty -> {MsgBuf, State1}; - {Fetched, Len} -> - State3 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State1), - {queue:join(Fetched, MsgBuf2), State3} - end - end, - %% We enqueue _everything_ here. This means that should a message - %% already be in the disk queue we must remove it and add it back - %% in. Fortunately, by using requeue, we avoid rewriting the - %% message on disk. - %% Note we also batch together messages on disk so that we minimise - %% the calls to requeue. - {ok, MsgBuf3} = - send_messages_to_disk(IsDurable, Q, MsgBuf1, 0, 0, [], queue:new()), - %% tx_publish txn messages. Some of these will have been already - %% published if they really are durable and persistent which is - %% why we can't just use our own tx_publish/2 function (would end - %% up publishing twice, so refcount would go wrong in disk_queue). - lists:foreach( - fun (Msg = #basic_message { is_persistent = IsPersistent }) -> - ok = case IsDurable andalso IsPersistent of - true -> ok; - _ -> rabbit_disk_queue:tx_publish(Msg) - end - end, TxnMessages), - garbage_collect(), - {ok, State2 #mqstate { msg_buf = MsgBuf3, prefetcher = undefined }}. - -send_messages_to_disk(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf) -> - case queue:out(Queue) of - {empty, _Queue} -> - ok = flush_messages_to_disk_queue(Q, Commit), - [] = flush_requeue_to_disk_queue(Q, RequeueCount, []), - {ok, MsgBuf}; - {{value, {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered}}, Queue1} -> - case IsDurable andalso IsPersistent of - true -> %% it's already in the Q - send_messages_to_disk( - IsDurable, Q, Queue1, PublishCount, RequeueCount + 1, - Commit, inc_queue_length(Q, MsgBuf, 1)); - false -> - republish_message_to_disk_queue( - IsDurable, Q, Queue1, PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered) - end; - {{value, {Msg, IsDelivered, _AckTag}}, Queue1} -> - %% these have come via the prefetcher, so are no longer in - %% the disk queue so they need to be republished - republish_message_to_disk_queue(IsDelivered, Q, Queue1, - PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered); - {{value, {Q, Count}}, Queue1} -> - send_messages_to_disk(IsDurable, Q, Queue1, PublishCount, - RequeueCount + Count, Commit, - inc_queue_length(Q, MsgBuf, Count)) - end. - -republish_message_to_disk_queue(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf, Msg = - #basic_message { guid = MsgId }, IsDelivered) -> - Commit1 = flush_requeue_to_disk_queue(Q, RequeueCount, Commit), - ok = rabbit_disk_queue:tx_publish(Msg), - {PublishCount1, Commit2} = - case PublishCount == ?TO_DISK_MAX_FLUSH_SIZE of - true -> ok = flush_messages_to_disk_queue(Q, Commit1), - {1, [{MsgId, IsDelivered}]}; - false -> {PublishCount + 1, [{MsgId, IsDelivered} | Commit1]} - end, - send_messages_to_disk(IsDurable, Q, Queue, PublishCount1, 0, - Commit2, inc_queue_length(Q, MsgBuf, 1)). - -flush_messages_to_disk_queue(_Q, []) -> - ok; -flush_messages_to_disk_queue(Q, Commit) -> - rabbit_disk_queue:tx_commit(Q, lists:reverse(Commit), []). - -flush_requeue_to_disk_queue(_Q, 0, Commit) -> - Commit; -flush_requeue_to_disk_queue(Q, RequeueCount, Commit) -> - ok = flush_messages_to_disk_queue(Q, Commit), - ok = rabbit_disk_queue:requeue_next_n(Q, RequeueCount), - []. - -to_mixed_mode(_TxnMessages, State = #mqstate { mode = mixed }) -> - {ok, State}; -to_mixed_mode(TxnMessages, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable }) -> - rabbit_log:info("Converting queue to mixed mode: ~p~n", [Q]), - %% The queue has a token just saying how many msgs are on disk - %% (this is already built for us when in disk mode). - %% Don't actually do anything to the disk - %% Don't start prefetcher just yet because the queue maybe busy - - %% wait for hibernate timeout in the amqqueue_process. - - %% Remove txn messages from disk which are neither persistent and - %% durable. This is necessary to avoid leaks. This is also pretty - %% much the inverse behaviour of our own tx_cancel/2 which is why - %% we're not using it. - Cancel = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent }, Acc) -> - case IsDurable andalso IsPersistent of - true -> Acc; - false -> [Msg #basic_message.guid | Acc] - end - end, [], TxnMessages), - ok = if Cancel == [] -> ok; - true -> rabbit_disk_queue:tx_cancel(Cancel) - end, - garbage_collect(), - {ok, State #mqstate { mode = mixed }}. - -inc_queue_length(_Q, MsgBuf, 0) -> - MsgBuf; -inc_queue_length(Q, MsgBuf, Count) -> - {NewCount, MsgBufTail} = - case queue:out_r(MsgBuf) of - {empty, MsgBuf1} -> {Count, MsgBuf1}; - {{value, {Q, Len}}, MsgBuf1} -> {Len + Count, MsgBuf1}; - {{value, _}, _MsgBuf1} -> {Count, MsgBuf} - end, - queue:in({Q, NewCount}, MsgBufTail). - -dec_queue_length(Count, State = #mqstate { queue = Q, msg_buf = MsgBuf }) -> - case queue:out(MsgBuf) of - {{value, {Q, Len}}, MsgBuf1} -> - case Len of - Count -> - maybe_prefetch(State #mqstate { msg_buf = MsgBuf1 }); - _ when Len > Count -> - State #mqstate { msg_buf = queue:in_r({Q, Len-Count}, - MsgBuf1)} - end; - _ -> State - end. - -maybe_prefetch(State = #mqstate { prefetcher = undefined, - mode = mixed, - msg_buf = MsgBuf, - queue = Q }) -> - case queue:peek(MsgBuf) of - {value, {Q, Count}} -> {ok, Prefetcher} = - rabbit_queue_prefetcher:start_link(Q, Count), - State #mqstate { prefetcher = Prefetcher }; - _ -> State - end; -maybe_prefetch(State) -> - State. - -publish(Msg, State = #mqstate { mode = disk, queue = Q, length = Length, - msg_buf = MsgBuf, memory_size = QSize, - memory_gain = Gain }) -> - MsgBuf1 = inc_queue_length(Q, MsgBuf, 1), - ok = rabbit_disk_queue:publish(Q, Msg, false), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_gain = Gain + MsgSize, - memory_size = QSize + MsgSize, - msg_buf = MsgBuf1, length = Length + 1 }}; -publish(Msg = #basic_message { is_persistent = IsPersistent }, State = - #mqstate { queue = Q, mode = mixed, is_durable = IsDurable, - msg_buf = MsgBuf, length = Length, memory_size = QSize, - memory_gain = Gain }) -> - ok = case IsDurable andalso IsPersistent of - true -> rabbit_disk_queue:publish(Q, Msg, false); - false -> ok - end, - MsgSize = size_of_message(Msg), - {ok, State #mqstate { msg_buf = queue:in({Msg, false}, MsgBuf), - length = Length + 1, memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -%% Assumption here is that the queue is empty already (only called via -%% attempt_immediate_delivery). -publish_delivered(Msg = - #basic_message { guid = MsgId, is_persistent = IsPersistent}, - State = - #mqstate { mode = Mode, is_durable = IsDurable, - queue = Q, length = 0, - memory_size = QSize, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:publish(Q, Msg, true), - MsgSize = size_of_message(Msg), - State1 = State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }, - case IsDurable andalso IsPersistent of - true -> - %% must call phantom_deliver otherwise the msg remains at - %% the head of the queue. This is synchronous, but - %% unavoidable as we need the AckTag - {MsgId, IsPersistent, true, AckTag, 0} = - rabbit_disk_queue:phantom_deliver(Q), - {ok, AckTag, State1}; - false -> - %% in this case, we don't actually care about the ack, so - %% auto ack it (asynchronously). - ok = rabbit_disk_queue:auto_ack_next_message(Q), - {ok, noack, State1} - end; -publish_delivered(Msg, State = - #mqstate { mode = mixed, length = 0, memory_size = QSize, - memory_gain = Gain }) -> - MsgSize = size_of_message(Msg), - {ok, noack, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -deliver(State = #mqstate { length = 0 }) -> - {empty, State}; -deliver(State = #mqstate { msg_buf = MsgBuf, queue = Q, - is_durable = IsDurable, length = Length, - prefetcher = Prefetcher }) -> - {{value, Value}, MsgBuf1} = queue:out(MsgBuf), - Rem = Length - 1, - State1 = State #mqstate { length = Rem }, - case Value of - {Msg = #basic_message { guid = MsgId, is_persistent = IsPersistent }, - IsDelivered} -> - AckTag = - case IsDurable andalso IsPersistent of - true -> - {MsgId, IsPersistent, IsDelivered, AckTag1, _PRem} - = rabbit_disk_queue:phantom_deliver(Q), - AckTag1; - false -> - noack - end, - State2 = maybe_prefetch(State1 #mqstate { msg_buf = MsgBuf1 }), - {{Msg, IsDelivered, AckTag, Rem}, State2}; - {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTag} -> - %% message has come via the prefetcher, thus it's been - %% delivered. If it's not persistent+durable, we should - %% ack it now - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, - State1 #mqstate { msg_buf = MsgBuf1 }}; - _ when Prefetcher == undefined -> - State2 = dec_queue_length(1, State1), - {Msg = #basic_message { is_persistent = IsPersistent }, - _Size, IsDelivered, AckTag, _PersistRem} - = rabbit_disk_queue:deliver(Q), - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, State2}; - _ -> - case rabbit_queue_prefetcher:drain(Prefetcher) of - empty -> deliver(State #mqstate { prefetcher = undefined }); - {Fetched, Len, Status} -> - State2 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State), - deliver(State2 #mqstate - { msg_buf = queue:join(Fetched, MsgBuf2), - prefetcher = case Status of - finished -> undefined; - continuing -> Prefetcher - end }) - end - end. - -maybe_ack(_Q, true, true, AckTag) -> - AckTag; -maybe_ack(Q, _, _, AckTag) -> - ok = rabbit_disk_queue:ack(Q, [AckTag]), - noack. - -remove_noacks(MsgsWithAcks) -> - lists:foldl( - fun ({Msg, noack}, {AccAckTags, AccSize}) -> - {AccAckTags, size_of_message(Msg) + AccSize}; - ({Msg, AckTag}, {AccAckTags, AccSize}) -> - {[AckTag | AccAckTags], size_of_message(Msg) + AccSize} - end, {[], 0}, MsgsWithAcks). - -ack(MsgsWithAcks, State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss }) -> - {AckTags, ASize} = remove_noacks(MsgsWithAcks), - ok = case AckTags of - [] -> ok; - _ -> rabbit_disk_queue:ack(Q, AckTags) - end, - State1 = State #mqstate { memory_size = QSize - ASize, - memory_loss = Loss + ASize }, - {ok, State1}. - -tx_publish(Msg = #basic_message { is_persistent = IsPersistent }, - State = #mqstate { mode = Mode, memory_size = QSize, - is_durable = IsDurable, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:tx_publish(Msg), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}; -tx_publish(Msg, State = #mqstate { mode = mixed, memory_size = QSize, - memory_gain = Gain }) -> - %% this message will reappear in the tx_commit, so ignore for now - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -only_msg_ids(Pubs) -> - lists:map(fun (Msg) -> {Msg #basic_message.guid, false} end, Pubs). - -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = disk, queue = Q, length = Length, - memory_size = QSize, memory_loss = Loss, - msg_buf = MsgBuf }) -> - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = if ([] == Publishes) andalso ([] == RealAcks) -> ok; - true -> rabbit_disk_queue:tx_commit(Q, only_msg_ids(Publishes), - RealAcks) - end, - Len = erlang:length(Publishes), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len), - memory_size = QSize - ASize, - memory_loss = Loss + ASize }}; -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, length = Length, - memory_size = QSize, memory_loss = Loss }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl(fun (Msg = #basic_message { is_persistent = IsPersistent }, - {Acc, MsgBuf2}) -> - Acc1 = - case IsPersistent andalso IsDurable of - true -> [ {Msg #basic_message.guid, false} - | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, false}, MsgBuf2)} - end, {[], MsgBuf}, Publishes), - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = case ([] == PersistentPubs) andalso ([] == RealAcks) of - true -> ok; - false -> rabbit_disk_queue:tx_commit( - Q, lists:reverse(PersistentPubs), RealAcks) - end, - {ok, State #mqstate { msg_buf = MsgBuf1, memory_size = QSize - ASize, - length = Length + erlang:length(Publishes), - memory_loss = Loss + ASize }}. - -tx_cancel(Publishes, State = #mqstate { mode = disk, memory_size = QSize, - memory_loss = Loss }) -> - {MsgIds, CSize} = - lists:foldl( - fun (Msg = #basic_message { guid = MsgId }, {MsgIdsAcc, CSizeAcc}) -> - {[MsgId | MsgIdsAcc], CSizeAcc + size_of_message(Msg)} - end, {[], 0}, Publishes), - ok = rabbit_disk_queue:tx_cancel(MsgIds), - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}; -tx_cancel(Publishes, State = #mqstate { mode = mixed, is_durable = IsDurable, - memory_size = QSize, - memory_loss = Loss }) -> - {PersistentPubs, CSize} = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, {Acc, CSizeAcc}) -> - CSizeAcc1 = CSizeAcc + size_of_message(Msg), - {case IsPersistent of - true -> [MsgId | Acc]; - _ -> Acc - end, CSizeAcc1} - end, {[], 0}, Publishes), - ok = - if IsDurable -> - rabbit_disk_queue:tx_cancel(PersistentPubs); - true -> ok - end, - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}. - -%% [{Msg, AckTag}] -requeue(MessagesWithAckTags, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable, - length = Length, - msg_buf = MsgBuf }) -> - %% here, we may have messages with no ack tags, because of the - %% fact they are not persistent, but nevertheless we want to - %% requeue them. This means publishing them delivered. - Requeue - = lists:foldl( - fun ({#basic_message { is_persistent = IsPersistent }, AckTag}, RQ) - when IsDurable andalso IsPersistent -> - [{AckTag, true} | RQ]; - ({Msg, noack}, RQ) -> - ok = case RQ == [] of - true -> ok; - false -> rabbit_disk_queue:requeue( - Q, lists:reverse(RQ)) - end, - ok = rabbit_disk_queue:publish(Q, Msg, true), - [] - end, [], MessagesWithAckTags), - ok = rabbit_disk_queue:requeue(Q, lists:reverse(Requeue)), - Len = erlang:length(MessagesWithAckTags), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len) }}; -requeue(MessagesWithAckTags, State = #mqstate { mode = mixed, queue = Q, - msg_buf = MsgBuf, - is_durable = IsDurable, - length = Length }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, AckTag}, - {Acc, MsgBuf2}) -> - Acc1 = - case IsDurable andalso IsPersistent of - true -> [{AckTag, true} | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, true}, MsgBuf2)} - end, {[], MsgBuf}, MessagesWithAckTags), - ok = case PersistentPubs of - [] -> ok; - _ -> rabbit_disk_queue:requeue(Q, lists:reverse(PersistentPubs)) - end, - {ok, State #mqstate {msg_buf = MsgBuf1, - length = Length + erlang:length(MessagesWithAckTags)}}. - -purge(State = #mqstate { queue = Q, mode = disk, length = Count, - memory_loss = Loss, memory_size = QSize }) -> - Count = rabbit_disk_queue:purge(Q), - {Count, State #mqstate { length = 0, memory_size = 0, - memory_loss = Loss + QSize }}; -purge(State = #mqstate { queue = Q, mode = mixed, length = Length, - memory_loss = Loss, memory_size = QSize, - prefetcher = Prefetcher }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - rabbit_disk_queue:purge(Q), - {Length, - State #mqstate { msg_buf = queue:new(), length = 0, memory_size = 0, - memory_loss = Loss + QSize, prefetcher = undefined }}. - -delete_queue(State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss, prefetcher = Prefetcher - }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - ok = rabbit_disk_queue:delete_queue(Q), - {ok, State #mqstate { length = 0, memory_size = 0, msg_buf = queue:new(), - memory_loss = Loss + QSize, prefetcher = undefined }}. - -length(#mqstate { length = Length }) -> - Length. - -is_empty(#mqstate { length = Length }) -> - 0 == Length. - -estimate_queue_memory_and_reset_counters(State = - #mqstate { memory_size = Size, memory_gain = Gain, memory_loss = Loss }) -> - {State #mqstate { memory_gain = 0, memory_loss = 0 }, 4 * Size, Gain, Loss}. - -info(#mqstate { mode = Mode }) -> - Mode. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index b40294f6..575ecb0a 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -144,31 +144,11 @@ table_definitions() -> {disc_copies, [node()]}]}, {rabbit_queue, [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}, - {rabbit_disk_queue, - [{record_name, dq_msg_loc}, - {type, set}, - {local_content, true}, - {attributes, record_info(fields, dq_msg_loc)}, - {disc_copies, [node()]}]} - ]. - -replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - not lists:member({local_content, true}, Attrs) - ]. - -non_replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - lists:member({local_content, true}, Attrs) - ]. + {attributes, record_info(fields, amqqueue)}]}]. table_names() -> [Tab || {Tab, _} <- table_definitions()]. -replicated_table_names() -> - [Tab || {Tab, _} <- replicated_table_definitions()]. - dir() -> mnesia:system_info(directory). ensure_mnesia_dir() -> @@ -193,8 +173,7 @@ ensure_mnesia_not_running() -> check_schema_integrity() -> %%TODO: more thorough checks - case catch [mnesia:table_info(Tab, version) - || Tab <- table_names()] of + case catch [mnesia:table_info(Tab, version) || Tab <- table_names()] of {'EXIT', Reason} -> {error, Reason}; _ -> ok end. @@ -274,11 +253,9 @@ init_db(ClusterNodes) -> WasDiskNode = mnesia:system_info(use_dir), IsDiskNode = ClusterNodes == [] orelse lists:member(node(), ClusterNodes), - ExtraNodes = ClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ExtraNodes) of + case mnesia:change_config(extra_db_nodes, ClusterNodes -- [node()]) of {ok, []} -> - case WasDiskNode of - true -> + if WasDiskNode and IsDiskNode -> case check_schema_integrity() of ok -> ok; @@ -293,18 +270,22 @@ init_db(ClusterNodes) -> ok = move_db(), ok = create_schema() end; - false -> - ok = create_schema() + WasDiskNode -> + throw({error, {cannot_convert_disk_node_to_ram_node, + ClusterNodes}}); + IsDiskNode -> + ok = create_schema(); + true -> + throw({error, {unable_to_contact_cluster_nodes, + ClusterNodes}}) end; {ok, [_|_]} -> - TableCopyType = case IsDiskNode of - true -> disc; - false -> ram - end, - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_non_replicated_table_copies(disc), - ok = create_local_replicated_table_copies(TableCopyType); + ok = wait_for_tables(), + ok = create_local_table_copies( + case IsDiskNode of + true -> disc; + false -> ram + end); {error, Reason} -> %% one reason we may end up here is if we try to join %% nodes together that are currently running standalone or @@ -355,27 +336,16 @@ create_tables() -> table_definitions()), ok. -create_local_replicated_table_copies(Type) -> - create_local_table_copies(Type, replicated_table_definitions()). - -create_local_non_replicated_table_copies(Type) -> - create_local_table_copies(Type, non_replicated_table_definitions()). - -create_local_table_copies(Type, TableDefinitions) -> +create_local_table_copies(Type) -> + ok = if Type /= ram -> create_local_table_copy(schema, disc_copies); + true -> ok + end, lists:foreach( fun({Tab, TabDef}) -> HasDiscCopies = - case lists:keysearch(disc_copies, 1, TabDef) of - false -> false; - {value, {disc_copies, List1}} -> - lists:member(node(), List1) - end, + lists:keymember(disc_copies, 1, TabDef), HasDiscOnlyCopies = - case lists:keysearch(disc_only_copies, 1, TabDef) of - false -> false; - {value, {disc_only_copies, List2}} -> - lists:member(node(), List2) - end, + lists:keymember(disc_only_copies, 1, TabDef), StorageType = case Type of disc -> @@ -396,7 +366,10 @@ create_local_table_copies(Type, TableDefinitions) -> end, ok = create_local_table_copy(Tab, StorageType) end, - TableDefinitions), + table_definitions()), + ok = if Type == ram -> create_local_table_copy(schema, ram_copies); + true -> ok + end, ok. create_local_table_copy(Tab, Type) -> @@ -411,16 +384,10 @@ create_local_table_copy(Tab, Type) -> end, ok. -wait_for_replicated_tables() -> - wait_for_tables(replicated_table_names()). - -wait_for_tables() -> - wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> +wait_for_tables() -> case check_schema_integrity() of ok -> - case mnesia:wait_for_tables(TableNames, 30000) of + case mnesia:wait_for_tables(table_names(), 30000) of ok -> ok; {timeout, BadTabs} -> throw({error, {timeout_waiting_for_tables, BadTabs}}); diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl new file mode 100644 index 00000000..d0d60ddf --- /dev/null +++ b/src/rabbit_persister.erl @@ -0,0 +1,523 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_persister). + +-behaviour(gen_server). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([transaction/1, extend_transaction/2, dirty_work/1, + commit_transaction/1, rollback_transaction/1, + force_snapshot/0, serial/0]). + +-include("rabbit.hrl"). + +-define(SERVER, ?MODULE). + +-define(LOG_BUNDLE_DELAY, 5). +-define(COMPLETE_BUNDLE_DELAY, 2). + +-define(HIBERNATE_AFTER, 10000). + +-define(MAX_WRAP_ENTRIES, 500). + +-define(PERSISTER_LOG_FORMAT_VERSION, {2, 4}). + +-record(pstate, {log_handle, entry_count, deadline, + pending_logs, pending_replies, + snapshot}). + +%% two tables for efficient persistency +%% one maps a key to a message +%% the other maps a key to one or more queues. +%% The aim is to reduce the overload of storing a message multiple times +%% when it appears in several queues. +-record(psnapshot, {serial, transactions, messages, queues}). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(qmsg() :: {amqqueue(), pkey()}). +-type(work_item() :: + {publish, message(), qmsg()} | + {deliver, qmsg()} | + {ack, qmsg()}). + +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(transaction/1 :: ([work_item()]) -> 'ok'). +-spec(extend_transaction/2 :: (txn(), [work_item()]) -> 'ok'). +-spec(dirty_work/1 :: ([work_item()]) -> 'ok'). +-spec(commit_transaction/1 :: (txn()) -> 'ok'). +-spec(rollback_transaction/1 :: (txn()) -> 'ok'). +-spec(force_snapshot/0 :: () -> 'ok'). +-spec(serial/0 :: () -> non_neg_integer()). + +-endif. + +%%---------------------------------------------------------------------------- + +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + +transaction(MessageList) -> + ?LOGDEBUG("transaction ~p~n", [MessageList]), + TxnKey = rabbit_guid:guid(), + gen_server:call(?SERVER, {transaction, TxnKey, MessageList}, infinity). + +extend_transaction(TxnKey, MessageList) -> + ?LOGDEBUG("extend_transaction ~p ~p~n", [TxnKey, MessageList]), + gen_server:cast(?SERVER, {extend_transaction, TxnKey, MessageList}). + +dirty_work(MessageList) -> + ?LOGDEBUG("dirty_work ~p~n", [MessageList]), + gen_server:cast(?SERVER, {dirty_work, MessageList}). + +commit_transaction(TxnKey) -> + ?LOGDEBUG("commit_transaction ~p~n", [TxnKey]), + gen_server:call(?SERVER, {commit_transaction, TxnKey}, infinity). + +rollback_transaction(TxnKey) -> + ?LOGDEBUG("rollback_transaction ~p~n", [TxnKey]), + gen_server:cast(?SERVER, {rollback_transaction, TxnKey}). + +force_snapshot() -> + gen_server:call(?SERVER, force_snapshot, infinity). + +serial() -> + gen_server:call(?SERVER, serial, infinity). + +%%-------------------------------------------------------------------- + +init(_Args) -> + process_flag(trap_exit, true), + FileName = base_filename(), + ok = filelib:ensure_dir(FileName), + Snapshot = #psnapshot{serial = 0, + transactions = dict:new(), + messages = ets:new(messages, []), + queues = ets:new(queues, [])}, + LogHandle = + case disk_log:open([{name, rabbit_persister}, + {head, current_snapshot(Snapshot)}, + {file, FileName}]) of + {ok, LH} -> LH; + {repaired, LH, {recovered, Recovered}, {badbytes, Bad}} -> + WarningFun = if + Bad > 0 -> fun rabbit_log:warning/2; + true -> fun rabbit_log:info/2 + end, + WarningFun("Repaired persister log - ~p recovered, ~p bad~n", + [Recovered, Bad]), + LH + end, + {Res, LoadedSnapshot} = internal_load_snapshot(LogHandle, Snapshot), + NewSnapshot = LoadedSnapshot#psnapshot{ + serial = LoadedSnapshot#psnapshot.serial + 1}, + case Res of + ok -> + ok = take_snapshot(LogHandle, NewSnapshot); + {error, Reason} -> + rabbit_log:error("Failed to load persister log: ~p~n", [Reason]), + ok = take_snapshot_and_save_old(LogHandle, NewSnapshot) + end, + State = #pstate{log_handle = LogHandle, + entry_count = 0, + deadline = infinity, + pending_logs = [], + pending_replies = [], + snapshot = NewSnapshot}, + {ok, State}. + +handle_call({transaction, Key, MessageList}, From, State) -> + NewState = internal_extend(Key, MessageList, State), + do_noreply(internal_commit(From, Key, NewState)); +handle_call({commit_transaction, TxnKey}, From, State) -> + do_noreply(internal_commit(From, TxnKey, State)); +handle_call(force_snapshot, _From, State) -> + do_reply(ok, flush(true, State)); +handle_call(serial, _From, + State = #pstate{snapshot = #psnapshot{serial = Serial}}) -> + do_reply(Serial, State); +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast({rollback_transaction, TxnKey}, State) -> + do_noreply(internal_rollback(TxnKey, State)); +handle_cast({dirty_work, MessageList}, State) -> + do_noreply(internal_dirty_work(MessageList, State)); +handle_cast({extend_transaction, TxnKey, MessageList}, State) -> + do_noreply(internal_extend(TxnKey, MessageList, State)); +handle_cast(_Msg, State) -> + {noreply, State}. + +handle_info(timeout, State = #pstate{deadline = infinity}) -> + State1 = flush(true, State), + %% TODO: Once we drop support for R11B-5, we can change this to + %% {noreply, State1, hibernate}; + proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State1]); +handle_info(timeout, State) -> + do_noreply(flush(State)); +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, State = #pstate{log_handle = LogHandle}) -> + flush(State), + disk_log:close(LogHandle), + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, flush(State)}. + +%%-------------------------------------------------------------------- + +internal_extend(Key, MessageList, State) -> + log_work(fun (ML) -> {extend_transaction, Key, ML} end, + MessageList, State). + +internal_dirty_work(MessageList, State) -> + log_work(fun (ML) -> {dirty_work, ML} end, + MessageList, State). + +internal_commit(From, Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {commit_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + complete(From, Unit, State#pstate{snapshot = NewSnapshot}). + +internal_rollback(Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {rollback_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +complete(From, Item, State = #pstate{deadline = ExistingDeadline, + pending_logs = Logs, + pending_replies = Waiting}) -> + State#pstate{deadline = compute_deadline( + ?COMPLETE_BUNDLE_DELAY, ExistingDeadline), + pending_logs = [Item | Logs], + pending_replies = [From | Waiting]}. + +%% This is made to limit disk usage by writing messages only once onto +%% disk. We keep a table associating pkeys to messages, and provided +%% the list of messages to output is left to right, we can guarantee +%% that pkeys will be a backreference to a message in memory when a +%% "tied" is met. +log_work(CreateWorkUnit, MessageList, + State = #pstate{ + snapshot = Snapshot = #psnapshot{ + messages = Messages}}) -> + Unit = CreateWorkUnit( + rabbit_misc:map_in_order( + fun(M = {publish, Message, QK = {_QName, PKey}}) -> + case ets:lookup(Messages, PKey) of + [_] -> {tied, QK}; + [] -> ets:insert(Messages, {PKey, Message}), + M + end; + (M) -> M + end, + MessageList)), + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +log(State = #pstate{deadline = ExistingDeadline, pending_logs = Logs}, + Message) -> + State#pstate{deadline = compute_deadline(?LOG_BUNDLE_DELAY, + ExistingDeadline), + pending_logs = [Message | Logs]}. + +base_filename() -> + rabbit_mnesia:dir() ++ "/rabbit_persister.LOG". + +take_snapshot(LogHandle, OldFileName, Snapshot) -> + ok = disk_log:sync(LogHandle), + %% current_snapshot is the Head (ie. first thing logged) + ok = disk_log:reopen(LogHandle, OldFileName, current_snapshot(Snapshot)). + +take_snapshot(LogHandle, Snapshot) -> + OldFileName = lists:flatten(base_filename() ++ ".previous"), + file:delete(OldFileName), + rabbit_log:info("Rolling persister log to ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +take_snapshot_and_save_old(LogHandle, Snapshot) -> + {MegaSecs, Secs, MicroSecs} = erlang:now(), + Timestamp = MegaSecs * 1000000 + Secs * 1000 + MicroSecs, + OldFileName = lists:flatten(io_lib:format("~s.saved.~p", + [base_filename(), Timestamp])), + rabbit_log:info("Saving persister log in ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +maybe_take_snapshot(Force, State = #pstate{entry_count = EntryCount, + log_handle = LH, + snapshot = Snapshot}) + when Force orelse EntryCount >= ?MAX_WRAP_ENTRIES -> + ok = take_snapshot(LH, Snapshot), + State#pstate{entry_count = 0}; +maybe_take_snapshot(_Force, State) -> + State. + +later_ms(DeltaMilliSec) -> + {MegaSec, Sec, MicroSec} = now(), + %% Note: not normalised. Unimportant for this application. + {MegaSec, Sec, MicroSec + (DeltaMilliSec * 1000)}. + +%% Result = B - A, more or less +time_diff({B1, B2, B3}, {A1, A2, A3}) -> + (B1 - A1) * 1000000 + (B2 - A2) + (B3 - A3) / 1000000.0 . + +compute_deadline(TimerDelay, infinity) -> + later_ms(TimerDelay); +compute_deadline(_TimerDelay, ExistingDeadline) -> + ExistingDeadline. + +compute_timeout(infinity) -> + ?HIBERNATE_AFTER; +compute_timeout(Deadline) -> + DeltaMilliSec = time_diff(Deadline, now()) * 1000.0, + if + DeltaMilliSec =< 1 -> + 0; + true -> + round(DeltaMilliSec) + end. + +do_noreply(State = #pstate{deadline = Deadline}) -> + {noreply, State, compute_timeout(Deadline)}. + +do_reply(Reply, State = #pstate{deadline = Deadline}) -> + {reply, Reply, State, compute_timeout(Deadline)}. + +flush(State) -> flush(false, State). + +flush(ForceSnapshot, State = #pstate{pending_logs = PendingLogs, + pending_replies = Waiting, + log_handle = LogHandle}) -> + State1 = if PendingLogs /= [] -> + disk_log:alog(LogHandle, lists:reverse(PendingLogs)), + State#pstate{entry_count = State#pstate.entry_count + 1}; + true -> + State + end, + State2 = maybe_take_snapshot(ForceSnapshot, State1), + if Waiting /= [] -> + ok = disk_log:sync(LogHandle), + lists:foreach(fun (From) -> gen_server:reply(From, ok) end, + Waiting); + true -> + ok + end, + State2#pstate{deadline = infinity, + pending_logs = [], + pending_replies = []}. + +current_snapshot(_Snapshot = #psnapshot{serial = Serial, + transactions= Ts, + messages = Messages, + queues = Queues}) -> + %% Avoid infinite growth of the table by removing messages not + %% bound to a queue anymore + prune_table(Messages, ets:foldl( + fun ({{_QName, PKey}, _Delivered}, S) -> + sets:add_element(PKey, S) + end, sets:new(), Queues)), + InnerSnapshot = {{serial, Serial}, + {txns, Ts}, + {messages, ets:tab2list(Messages)}, + {queues, ets:tab2list(Queues)}}, + ?LOGDEBUG("Inner snapshot: ~p~n", [InnerSnapshot]), + {persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + term_to_binary(InnerSnapshot)}. + +prune_table(Tab, Keys) -> + true = ets:safe_fixtable(Tab, true), + ok = prune_table(Tab, Keys, ets:first(Tab)), + true = ets:safe_fixtable(Tab, false). + +prune_table(_Tab, _Keys, '$end_of_table') -> ok; +prune_table(Tab, Keys, Key) -> + case sets:is_element(Key, Keys) of + true -> ok; + false -> ets:delete(Tab, Key) + end, + prune_table(Tab, Keys, ets:next(Tab, Key)). + +internal_load_snapshot(LogHandle, + Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + {K, [Loaded_Snapshot | Items]} = disk_log:chunk(LogHandle, start), + case check_version(Loaded_Snapshot) of + {ok, StateBin} -> + {{serial, Serial}, {txns, Ts}, {messages, Ms}, {queues, Qs}} = + binary_to_term(StateBin), + true = ets:insert(Messages, Ms), + true = ets:insert(Queues, Qs), + Snapshot1 = replay(Items, LogHandle, K, + Snapshot#psnapshot{ + serial = Serial, + transactions = Ts}), + Snapshot2 = requeue_messages(Snapshot1), + %% uncompleted transactions are discarded - this is TRTTD + %% since we only get into this code on node restart, so + %% any uncompleted transactions will have been aborted. + {ok, Snapshot2#psnapshot{transactions = dict:new()}}; + {error, Reason} -> {{error, Reason}, Snapshot} + end. + +check_version({persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + StateBin}) -> + {ok, StateBin}; +check_version({persist_snapshot, {vsn, Vsn}, _StateBin}) -> + {error, {unsupported_persister_log_format, Vsn}}; +check_version(_Other) -> + {error, unrecognised_persister_log_format}. + +requeue_messages(Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + Work = ets:foldl(fun accumulate_requeues/2, dict:new(), Queues), + %% unstable parallel map, because order doesn't matter + L = lists:append( + rabbit_misc:upmap( + %% we do as much work as possible in spawned worker + %% processes, but we need to make sure the ets:inserts are + %% performed in self() + fun ({QName, Requeues}) -> + requeue(QName, Requeues, Messages) + end, dict:to_list(Work))), + NewMessages = [{K, M} || {{_Q, K}, M, _D} <- L], + NewQueues = [{QK, D} || {QK, _M, D} <- L], + ets:delete_all_objects(Messages), + ets:delete_all_objects(Queues), + true = ets:insert(Messages, NewMessages), + true = ets:insert(Queues, NewQueues), + %% contains the mutated messages and queues tables + Snapshot. + +accumulate_requeues({{QName, PKey}, Delivered}, Acc) -> + Requeue = {PKey, Delivered}, + dict:update(QName, + fun (Requeues) -> [Requeue | Requeues] end, + [Requeue], + Acc). + +requeue(QName, Requeues, Messages) -> + case rabbit_amqqueue:lookup(QName) of + {ok, #amqqueue{pid = QPid}} -> + RequeueMessages = + [{{QName, PKey}, Message, Delivered} || + {PKey, Delivered} <- Requeues, + {_, Message} <- ets:lookup(Messages, PKey)], + rabbit_amqqueue:redeliver( + QPid, + %% Messages published by the same process receive + %% persistence keys that are monotonically + %% increasing. Since message ordering is defined on a + %% per-channel basis, and channels are bound to specific + %% processes, sorting the list does provide the correct + %% ordering properties. + [{Message, Delivered} || {_, Message, Delivered} <- + lists:sort(RequeueMessages)]), + RequeueMessages; + {error, not_found} -> + [] + end. + +replay([], LogHandle, K, Snapshot) -> + case disk_log:chunk(LogHandle, K) of + {K1, Items} -> + replay(Items, LogHandle, K1, Snapshot); + {K1, Items, Badbytes} -> + rabbit_log:warning("~p bad bytes recovering persister log~n", + [Badbytes]), + replay(Items, LogHandle, K1, Snapshot); + eof -> Snapshot + end; +replay([Item | Items], LogHandle, K, Snapshot) -> + NewSnapshot = internal_integrate_messages(Item, Snapshot), + replay(Items, LogHandle, K, NewSnapshot). + +internal_integrate_messages(Items, Snapshot) -> + lists:foldl(fun (Item, Snap) -> internal_integrate1(Item, Snap) end, + Snapshot, Items). + +internal_integrate1({extend_transaction, Key, MessageList}, + Snapshot = #psnapshot {transactions = Transactions}) -> + NewTransactions = + dict:update(Key, + fun (MessageLists) -> [MessageList | MessageLists] end, + [MessageList], + Transactions), + Snapshot#psnapshot{transactions = NewTransactions}; +internal_integrate1({rollback_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions}) -> + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; +internal_integrate1({commit_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions, + messages = Messages, + queues = Queues}) -> + case dict:find(Key, Transactions) of + {ok, MessageLists} -> + ?LOGDEBUG("persist committing txn ~p~n", [Key]), + lists:foreach(fun (ML) -> perform_work(ML, Messages, Queues) end, + lists:reverse(MessageLists)), + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; + error -> + Snapshot + end; +internal_integrate1({dirty_work, MessageList}, + Snapshot = #psnapshot {messages = Messages, + queues = Queues}) -> + perform_work(MessageList, Messages, Queues), + Snapshot. + +perform_work(MessageList, Messages, Queues) -> + lists:foreach( + fun (Item) -> perform_work_item(Item, Messages, Queues) end, + MessageList). + +perform_work_item({publish, Message, QK = {_QName, PKey}}, Messages, Queues) -> + ets:insert(Messages, {PKey, Message}), + ets:insert(Queues, {QK, false}); + +perform_work_item({tied, QK}, _Messages, Queues) -> + ets:insert(Queues, {QK, false}); + +perform_work_item({deliver, QK}, _Messages, Queues) -> + %% from R12B-2 onward we could use ets:update_element/3 here + ets:delete(Queues, QK), + ets:insert(Queues, {QK, true}); + +perform_work_item({ack, QK}, _Messages, Queues) -> + ets:delete(Queues, QK). diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl deleted file mode 100644 index 5a6c8b39..00000000 --- a/src/rabbit_queue_mode_manager.erl +++ /dev/null @@ -1,496 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_mode_manager). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([register/5, report_memory/3, report_memory/5, info/0, - pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). - --define(TOTAL_TOKENS, 10000000). --define(ACTIVITY_THRESHOLD, 25). - --define(SERVER, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(register/5 :: (pid(), boolean(), atom(), atom(), list()) -> 'ok'). --spec(report_memory/3 :: (pid(), non_neg_integer(), bool()) -> 'ok'). --spec(report_memory/5 :: (pid(), non_neg_integer(), - (non_neg_integer() | 'undefined'), - (non_neg_integer() | 'undefined'), bool()) -> - 'ok'). --spec(pin_to_disk/1 :: (pid()) -> 'ok'). --spec(unpin_from_disk/1 :: (pid()) -> 'ok'). --spec(info/0 :: () -> [{atom(), any()}]). --spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). - --endif. - --record(state, { available_tokens, - mixed_queues, - callbacks, - tokens_per_byte, - lowrate, - hibernate, - disk_mode_pins, - unevictable, - alarmed - }). - -%% Token-credit based memory management - -%% Start off by working out the amount of memory available in the -%% system (RAM). Then, work out how many tokens each byte corresponds -%% to. This is the tokens_per_byte field. When a process registers, it -%% must provide an M-F-A triple to a function that needs one further -%% argument, which is the new mode. This will either be 'mixed' or -%% 'disk'. -%% -%% Processes then report their own memory usage, in bytes, and the -%% manager takes care of the rest. -%% -%% There are a finite number of tokens in the system. These are -%% allocated to processes as they are requested. We keep track of -%% processes which have hibernated, and processes that are doing only -%% a low rate of work. When a request for memory can't be satisfied, -%% we try and evict processes first from the hibernated group, and -%% then from the lowrate group. The hibernated group is a simple -%% queue, and so is implicitly sorted by the order in which processes -%% were added to the queue. This means that when removing from the -%% queue, we hibernate the sleepiest pid first. The lowrate group is a -%% priority queue, where the priority is the truncated log (base e) of -%% the amount of memory allocated. Thus when we remove from the queue, -%% we first remove the queue from the highest bucket. -%% -%% If the request still can't be satisfied after evicting to disk -%% everyone from those two groups (and note that we check first -%% whether or not freeing them would make available enough tokens to -%% satisfy the request rather than just sending all those queues to -%% disk and then going "whoops, didn't help after all"), then we send -%% the requesting process to disk. When a queue registers, it can -%% declare itself "unevictable". If a queue is unevictable then it -%% will not be sent to disk as a result of other processes requesting -%% more memory. However, if it itself is requesting more memory and -%% that request can't be satisfied then it is still sent to disk as -%% before. This feature is only used by the disk_queue, because if the -%% disk queue is not being used, and hibernates, and then memory -%% pressure gets tight, the disk_queue would typically be one of the -%% first processes to get sent to disk, which cripples -%% performance. Thus by setting it unevictable, it is only possible -%% for the disk_queue to be sent to disk when it is active and -%% attempting to increase its memory allocation. -%% -%% If a process has been sent to disk, it continues making -%% requests. As soon as a request can be satisfied (and this can -%% include sending other processes to disk in the way described -%% above), it will be told to come back into mixed mode. We do not -%% keep any information about queues in disk mode. -%% -%% Note that the lowrate and hibernate groups can get very out of -%% date. This is fine, and somewhat unavoidable given the absence of -%% useful APIs for queues. Thus we allow them to get out of date -%% (processes will be left in there when they change groups, -%% duplicates can appear, dead processes are not pruned etc etc etc), -%% and when we go through the groups, summing up their amount of -%% memory, we tidy up at that point. -%% -%% A process which is not evicted to disk, and is requesting a smaller -%% amount of RAM than its last request will always be satisfied. A -%% mixed-mode process that is busy but consuming an unchanging amount -%% of RAM will never be sent to disk. The disk_queue is also managed -%% in the same way. This means that a queue that has gone back to -%% being mixed after being in disk mode now has its messages counted -%% twice as they are counted both in the request made by the queue -%% (even though they may not yet be in RAM (though see the -%% prefetcher)) and also by the disk_queue. Thus the amount of -%% available RAM must be higher when going disk -> mixed than when -%% going mixed -> disk. This is fairly sensible as it reduces the risk -%% of any oscillations occurring. -%% -%% The queue process deliberately reports 4 times its estimated RAM -%% usage, and the disk_queue 2.5 times. In practise, this seems to -%% work well. Note that we are deliberately running out of tokes a -%% little early because of the fact that the mixed -> disk transition -%% can transiently eat a lot of memory and take some time (flushing a -%% few million messages to disk is never going to be instantaneous). - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -register(Pid, Unevictable, Module, Function, Args) -> - gen_server2:cast(?SERVER, {register, Pid, Unevictable, - Module, Function, Args}). - -pin_to_disk(Pid) -> - gen_server2:call(?SERVER, {pin_to_disk, Pid}). - -unpin_from_disk(Pid) -> - gen_server2:call(?SERVER, {unpin_from_disk, Pid}). - -report_memory(Pid, Memory, Hibernating) -> - report_memory(Pid, Memory, undefined, undefined, Hibernating). - -report_memory(Pid, Memory, Gain, Loss, Hibernating) -> - gen_server2:cast(?SERVER, - {report_memory, Pid, Memory, Gain, Loss, Hibernating}). - -info() -> - gen_server2:call(?SERVER, info). - -conserve_memory(_Pid, Conserve) -> - gen_server2:pcast(?SERVER, 9, {conserve_memory, Conserve}). - -init([]) -> - process_flag(trap_exit, true), - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - {MemTotal, MemUsed, _BigProc} = memsup:get_memory_data(), - MemAvail = MemTotal - MemUsed, - TPB = if MemAvail == 0 -> 0; - true -> ?TOTAL_TOKENS / MemAvail - end, - {ok, #state { available_tokens = ?TOTAL_TOKENS, - mixed_queues = dict:new(), - callbacks = dict:new(), - tokens_per_byte = TPB, - lowrate = priority_queue:new(), - hibernate = queue:new(), - disk_mode_pins = sets:new(), - unevictable = sets:new(), - alarmed = false - }}. - -handle_call({pin_to_disk, Pid}, _From, - State = #state { mixed_queues = Mixed, - callbacks = Callbacks, - available_tokens = Avail, - disk_mode_pins = Pins }) -> - {Res, State1} = - case sets:is_element(Pid, Pins) of - true -> {ok, State}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - ok = set_queue_mode(Callbacks, Pid, disk), - {ok, State #state { mixed_queues = - dict:erase(Pid, Mixed), - available_tokens = Avail + OAlloc, - disk_mode_pins = - sets:add_element(Pid, Pins) - }}; - disk -> - {ok, State #state { disk_mode_pins = - sets:add_element(Pid, Pins) }} - end - end, - {reply, Res, State1}; - -handle_call({unpin_from_disk, Pid}, _From, - State = #state { disk_mode_pins = Pins }) -> - {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; - -handle_call(info, _From, State) -> - State1 = #state { available_tokens = Avail, - mixed_queues = Mixed, - lowrate = Lazy, - hibernate = Sleepy, - disk_mode_pins = Pins, - unevictable = Unevictable } = - free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying - {reply, [{ available_tokens, Avail }, - { mixed_queues, dict:to_list(Mixed) }, - { lowrate_queues, priority_queue:to_list(Lazy) }, - { hibernated_queues, queue:to_list(Sleepy) }, - { queues_pinned_to_disk, sets:to_list(Pins) }, - { unevictable_queues, sets:to_list(Unevictable) }], State1}. - - -handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, - State = #state { mixed_queues = Mixed, - available_tokens = Avail, - callbacks = Callbacks, - disk_mode_pins = Pins, - tokens_per_byte = TPB, - alarmed = Alarmed }) -> - Req = rabbit_misc:ceil(TPB * Memory), - LowRate = case {BytesGained, BytesLost} of - {undefined, _} -> false; - {_, undefined} -> false; - {G, L} -> G < ?ACTIVITY_THRESHOLD andalso - L < ?ACTIVITY_THRESHOLD - end, - MixedActivity = if Hibernating -> hibernate; - LowRate -> lowrate; - true -> active - end, - {StateN = #state { lowrate = Lazy, hibernate = Sleepy }, ActivityNew} = - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - Avail1 = Avail + OAlloc, - State1 = - #state { available_tokens = Avail2, mixed_queues = Mixed1 } - = free_upto(Pid, Req, - State #state { available_tokens = Avail1 }), - case Req > Avail2 of - true -> %% nowt we can do, send to disk - ok = set_queue_mode(Callbacks, Pid, disk), - {State1 #state { mixed_queues = - dict:erase(Pid, Mixed1) }, disk}; - false -> %% keep mixed - {State1 #state - { mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail2 - Req }, - MixedActivity} - end; - disk -> - case sets:is_element(Pid, Pins) orelse Alarmed of - true -> - {State, disk}; - false -> - State1 = #state { available_tokens = Avail1, - mixed_queues = Mixed1 } = - free_upto(Pid, Req, State), - case Req > Avail1 orelse Hibernating orelse LowRate of - true -> - %% not enough space, or no compelling - %% reason, so stay as disk - {State1, disk}; - false -> %% can go to mixed mode - set_queue_mode(Callbacks, Pid, mixed), - {State1 #state { - mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail1 - Req }, - MixedActivity} - end - end - end, - StateN1 = - case ActivityNew of - active -> StateN; - disk -> StateN; - lowrate -> - StateN #state { lowrate = add_to_lowrate(Pid, Req, Lazy) }; - hibernate -> - StateN #state { hibernate = queue:in(Pid, Sleepy) } - end, - {noreply, StateN1}; - -handle_cast({register, Pid, IsUnevictable, Module, Function, Args}, - State = #state { callbacks = Callbacks, - unevictable = Unevictable }) -> - _MRef = erlang:monitor(process, Pid), - Unevictable1 = case IsUnevictable of - true -> sets:add_element(Pid, Unevictable); - false -> Unevictable - end, - {noreply, State #state { callbacks = dict:store - (Pid, {Module, Function, Args}, Callbacks), - unevictable = Unevictable1 - }}; - -handle_cast({conserve_memory, Conserve}, State) -> - {noreply, State #state { alarmed = Conserve }}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #state { available_tokens = Avail, - mixed_queues = Mixed }) -> - State1 = case find_queue(Pid, Mixed) of - disk -> - State; - {mixed, {Alloc, _Activity}} -> - State #state { available_tokens = Avail + Alloc, - mixed_queues = dict:erase(Pid, Mixed) } - end, - {noreply, State1}; -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -add_to_lowrate(Pid, Alloc, Lazy) -> - Bucket = if Alloc == 0 -> 0; %% can't take log(0) - true -> trunc(math:log(Alloc)) %% log base e - end, - priority_queue:in({Pid, Bucket, Alloc}, Bucket, Lazy). - -find_queue(Pid, Mixed) -> - case dict:find(Pid, Mixed) of - {ok, Value} -> {mixed, Value}; - error -> disk - end. - -set_queue_mode(Callbacks, Pid, Mode) -> - {Module, Function, Args} = dict:fetch(Pid, Callbacks), - erlang:apply(Module, Function, Args ++ [Mode]). - -tidy_and_sum_lazy(IgnorePids, Lazy, Mixed) -> - tidy_and_sum(lowrate, Mixed, - fun (Lazy1) -> - case priority_queue:out(Lazy1) of - {empty, Lazy2} -> - {empty, Lazy2}; - {{value, {Pid, _Bucket, _Alloc}}, Lazy2} -> - {{value, Pid}, Lazy2} - end - end, fun add_to_lowrate/3, IgnorePids, Lazy, - priority_queue:new(), 0). - -tidy_and_sum_sleepy(IgnorePids, Sleepy, Mixed) -> - tidy_and_sum(hibernate, Mixed, fun queue:out/1, - fun (Pid, _Alloc, Queue) -> queue:in(Pid, Queue) end, - IgnorePids, Sleepy, queue:new(), 0). - -tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, DupCheckSet, - CataInit, AnaInit, AllocAcc) -> - case Catamorphism(CataInit) of - {empty, _CataInit} -> {AnaInit, AllocAcc}; - {{value, Pid}, CataInit1} -> - {DupCheckSet1, AnaInit1, AllocAcc1} = - case sets:is_element(Pid, DupCheckSet) of - true -> - {DupCheckSet, AnaInit, AllocAcc}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {Alloc, AtomExpected}} -> - {sets:add_element(Pid, DupCheckSet), - Anamorphism(Pid, Alloc, AnaInit), - Alloc + AllocAcc}; - _ -> - {DupCheckSet, AnaInit, AllocAcc} - end - end, - tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, - DupCheckSet1, CataInit1, AnaInit1, AllocAcc1) - end. - -free_upto_lazy(IgnorePids, Callbacks, Lazy, Mixed, Req) -> - free_from( - Callbacks, - fun(_Mixed, Lazy1, LazyAcc) -> - case priority_queue:out(Lazy1) of - {empty, _Lazy2} -> - empty; - {{value, V = {Pid, Bucket, Alloc}}, Lazy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Lazy2, - priority_queue:in(V, Bucket, LazyAcc)}; - false -> {value, Lazy2, Pid, Alloc} - end - end - end, fun priority_queue:join/2, Mixed, Lazy, priority_queue:new(), Req). - -free_upto_sleepy(IgnorePids, Callbacks, Sleepy, Mixed, Req) -> - free_from(Callbacks, - fun(Mixed1, Sleepy1, SleepyAcc) -> - case queue:out(Sleepy1) of - {empty, _Sleepy2} -> - empty; - {{value, Pid}, Sleepy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Sleepy2, - queue:in(Pid, SleepyAcc)}; - false -> {Alloc, hibernate} = - dict:fetch(Pid, Mixed1), - {value, Sleepy2, Pid, Alloc} - end - end - end, fun queue:join/2, Mixed, Sleepy, queue:new(), Req). - -free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit, AnaInit, Req) -> - case Hylomorphism(Mixed, CataInit, AnaInit) of - empty -> - {AnaInit, Mixed, Req}; - {skip, CataInit1, AnaInit1} -> - free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit1, - AnaInit1, Req); - {value, CataInit1, Pid, Alloc} -> - Mixed1 = dict:erase(Pid, Mixed), - ok = set_queue_mode(Callbacks, Pid, disk), - case Req > Alloc of - true -> free_from(Callbacks, Hylomorphism, BaseCase, Mixed1, - CataInit1, AnaInit, Req - Alloc); - false -> {BaseCase(CataInit1, AnaInit), Mixed1, Req - Alloc} - end - end. - -free_upto(Pid, Req, State = #state { available_tokens = Avail, - mixed_queues = Mixed, - callbacks = Callbacks, - lowrate = Lazy, - hibernate = Sleepy, - unevictable = Unevictable }) - when Req > Avail -> - Unevictable1 = sets:add_element(Pid, Unevictable), - {Sleepy1, SleepySum} = tidy_and_sum_sleepy(Unevictable1, Sleepy, Mixed), - case Req > Avail + SleepySum of - true -> %% not enough in sleepy, have a look in lazy too - {Lazy1, LazySum} = tidy_and_sum_lazy(Unevictable1, Lazy, Mixed), - case Req > Avail + SleepySum + LazySum of - true -> %% can't free enough, just return tidied state - State #state { lowrate = Lazy1, hibernate = Sleepy1 }; - false -> %% need to free all of sleepy, and some of lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, - Sleepy1, Mixed, Req), - {Lazy2, Mixed2, ReqRem1} = - free_upto_lazy(Unevictable1, Callbacks, - Lazy1, Mixed1, ReqRem), - %% ReqRem1 will be <= 0 because it's - %% likely we'll have freed more than we - %% need, thus Req - ReqRem1 is total freed - State #state { available_tokens = Avail + (Req - ReqRem1), - mixed_queues = Mixed2, lowrate = Lazy2, - hibernate = Sleepy2 } - end; - false -> %% enough available in sleepy, don't touch lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, Sleepy1, Mixed, Req), - State #state { available_tokens = Avail + (Req - ReqRem), - mixed_queues = Mixed1, hibernate = Sleepy2 } - end; -free_upto(_Pid, _Req, State) -> - State. diff --git a/src/rabbit_queue_prefetcher.erl b/src/rabbit_queue_prefetcher.erl deleted file mode 100644 index c847848d..00000000 --- a/src/rabbit_queue_prefetcher.erl +++ /dev/null @@ -1,258 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_prefetcher). - --behaviour(gen_server2). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([publish/2, drain/1, drain_and_stop/1]). - --include("rabbit.hrl"). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(pstate, - { msg_buf, - buf_length, - target_count, - fetched_count, - queue, - queue_mref - }). - -%% The design of the prefetcher is based on the following: -%% -%% a) It must issue low-priority (-ve) requests to the disk queue for -%% the next message. -%% b) If the prefetcher is empty and the amqqueue_process -%% (mixed_queue) asks it for a message, it must exit immediately, -%% telling the mixed_queue that it is empty so that the mixed_queue -%% can then take the more efficient path and communicate with the -%% disk_queue directly -%% c) No message can accidentally be delivered twice, or lost -%% d) The prefetcher must only cause load when the disk_queue is -%% otherwise idle, and must not worsen performance in a loaded -%% situation. -%% -%% As such, it's a little tricky. It must never issue a call to the -%% disk_queue - if it did, then that could potentially block, thus -%% causing pain to the mixed_queue that needs fast answers as to -%% whether the prefetcher has prefetched content or not. It behaves as -%% follows: -%% -%% 1) disk_queue:prefetch(Q) -%% This is a low priority cast -%% -%% 2) The disk_queue may pick up the cast, at which point it'll read -%% the next message and invoke prefetcher:publish(Msg) - normal -%% priority cast. Note that in the mean time, the mixed_queue could -%% have come along, found the prefetcher empty, asked it to -%% exit. This means the effective "reply" from the disk_queue will -%% go no where. As a result, the disk_queue must perform no -%% modification to the status of the message *or the queue* - do -%% not mark the message delivered, and do not advance the queue. If -%% it did advance the queue and the msg was then lost, then the -%% queue would have lost a msg that the mixed_queue would not pick -%% up. -%% -%% 3) The prefetcher hopefully receives the call from -%% prefetcher:publish(Msg). It replies immediately, and then adds -%% to its internal queue. A cast is not sufficient here because the -%% mixed_queue could come along, drain the prefetcher, thus -%% catching the msg just sent by the disk_queue and then call -%% disk_queue:deliver(Q) which is normal priority call, which could -%% overtake a reply cast from the prefetcher to the disk queue, -%% which would result in the same message being delivered -%% twice. Thus when the disk_queue calls prefetcher:publish(Msg), -%% it is briefly blocked. However, a) the prefetcher replies -%% immediately, and b) the prefetcher should never have more than -%% one item in its mailbox anyway, so this should not cause a -%% problem to the disk_queue. -%% -%% 4) The disk_queue receives the reply, marks the msg at the head of -%% the queue Q as delivered, and advances the Q to the next msg. -%% -%% 5) If the prefetcher has not met its target then it goes back to -%% 1). Otherwise it just sits and waits for the mixed_queue to -%% drain it. -%% -%% Now at some point, the mixed_queue will come along and will call -%% prefetcher:drain() - normal priority call. The prefetcher then -%% replies with its internal queue and the length of that queue. If -%% the prefetch target was reached, the prefetcher stops normally at -%% this point. If it hasn't been reached, then the prefetcher -%% continues to hang around (it almost certainly has issued a -%% disk_queue:prefetch(Q) cast and is waiting for a reply from the -%% disk_queue). -%% -%% If the mixed_queue calls prefetcher:drain() and the prefetcher's -%% internal queue is empty then the prefetcher replies with 'empty', -%% and it exits. This informs the mixed_queue that it should from now -%% on talk directly with the disk_queue and not via the -%% prefetcher. This is more efficient and the mixed_queue will use -%% normal priority blocking calls to the disk_queue and thus get -%% better service that way. -%% -%% The prefetcher may at this point have issued a -%% disk_queue:prefetch(Q) cast which has not yet been picked up by the -%% disk_queue. This msg won't go away and the disk_queue will -%% eventually find it. However, when it does, it'll simply read the -%% next message from the queue (which could now be empty), possibly -%% populate the cache (no harm done) and try and call -%% prefetcher:publish(Msg) which will result in an error, which the -%% disk_queue catches, as the publish call is to a non-existant -%% process. However, the state of the queue and the state of the -%% message has not been altered so the mixed_queue will be able to -%% fetch this message as if it had never been prefetched. -%% -%% The only point at which the queue is advanced and the message -%% marked as delivered is when the prefetcher replies to the publish -%% call. At this point the message has been received by the prefetcher -%% and so we guarantee it will be passed to the mixed_queue when the -%% mixed_queue tries to drain the prefetcher. We must therefore ensure -%% that this msg can't also be delivered to the mixed_queue directly -%% by the disk_queue through the mixed_queue calling -%% disk_queue:deliver(Q) which is why the prefetcher:publish function -%% is a call and not a cast, thus blocking the disk_queue. -%% -%% Finally, the prefetcher is only created when the mixed_queue is -%% operating in mixed mode and it sees that the next N messages are -%% all on disk, and the queue process is about to hibernate. During -%% this phase, the mixed_queue can be asked to go back to disk_only -%% mode. When this happens, it calls prefetcher:drain_and_stop() which -%% behaves like two consecutive calls to drain() - i.e. replies with -%% all prefetched messages and causes the prefetcher to exit. -%% -%% Note there is a flaw here in that we end up marking messages which -%% have come through the prefetcher as delivered even if they don't -%% get delivered (e.g. prefetcher fetches them, then broker -%% dies). However, the alternative is that the mixed_queue must do a -%% call to the disk_queue when it effectively passes them out to the -%% rabbit_writer. This would hurt performance, and even at that stage, -%% we have no guarantee that the message will really go out of the -%% socket. What we do still have is that messages which have the -%% redelivered bit set false really are guaranteed to have not been -%% delivered already. In theory, it's possible that the disk_queue -%% calls prefetcher:publish, blocks waiting for the reply. The -%% prefetcher grabs the message, is drained, the message goes out of -%% the socket and is delivered. The broker then crashes before the -%% disk_queue processes the reply from the prefetcher, thus the fact -%% the message has been delivered is not recorded. However, this can -%% only affect a single message at a time. I.e. there is a tiny chance -%% that the first message delivered on queue recovery that has the -%% redelivery bit set false, has in fact been delivered before. - -start_link(Queue, Count) -> - gen_server2:start_link(?MODULE, [Queue, Count, self()], []). - -publish(Prefetcher, Obj = { #basic_message {}, _Size, _IsDelivered, - _AckTag, _Remaining }) -> - gen_server2:call(Prefetcher, {publish, Obj}, infinity); -publish(Prefetcher, empty) -> - gen_server2:call(Prefetcher, publish_empty, infinity). - -drain(Prefetcher) -> - gen_server2:call(Prefetcher, drain, infinity). - -drain_and_stop(Prefetcher) -> - gen_server2:call(Prefetcher, drain_and_stop, infinity). - -init([Q, Count, QPid]) -> - %% link isn't enough because the signal will not appear if the - %% queue exits normally. Thus have to use monitor. - MRef = erlang:monitor(process, QPid), - State = #pstate { msg_buf = queue:new(), - buf_length = 0, - target_count = Count, - fetched_count = 0, - queue = Q, - queue_mref = MRef - }, - ok = rabbit_disk_queue:prefetch(Q), - {ok, State, infinity, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({publish, { Msg = #basic_message {}, - _Size, IsDelivered, AckTag, _Remaining }}, - DiskQueue, State = - #pstate { fetched_count = Fetched, target_count = Target, - msg_buf = MsgBuf, buf_length = Length, queue = Q - }) -> - gen_server2:reply(DiskQueue, ok), - Timeout = if Fetched + 1 == Target -> hibernate; - true -> ok = rabbit_disk_queue:prefetch(Q), - infinity - end, - MsgBuf1 = queue:in({Msg, IsDelivered, AckTag}, MsgBuf), - {noreply, State #pstate { fetched_count = Fetched + 1, - buf_length = Length + 1, - msg_buf = MsgBuf1 }, Timeout}; -handle_call(publish_empty, _From, State) -> - %% Very odd. This could happen if the queue is deleted or purged - %% and the mixed queue fails to shut us down. - {reply, ok, State, hibernate}; -handle_call(drain, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain, _From, State = #pstate { fetched_count = Count, - target_count = Count, - msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length, finished}, State}; -handle_call(drain, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {reply, {MsgBuf, Length, continuing}, - State #pstate { msg_buf = queue:new(), buf_length = 0 }, infinity}; -handle_call(drain_and_stop, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain_and_stop, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length}, State}. - -handle_cast(Msg, State) -> - exit({unexpected_message_cast_to_prefetcher, Msg, State}). - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #pstate { queue_mref = MRef }) -> - %% this is the amqqueue_process going down, so we should go down - %% too - {stop, normal, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index f6d42e7c..e5100ccd 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -31,9 +31,7 @@ -module(rabbit_tests). --compile(export_all). - --export([all_tests/0, test_parsing/0, test_disk_queue/0]). +-export([all_tests/0, test_parsing/0]). %% Exported so the hook mechanism can call back -export([handle_hook/3, bad_handle_hook/3, extra_arg_hook/5]). @@ -50,7 +48,6 @@ test_content_prop_roundtrip(Datum, Binary) -> Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion all_tests() -> - passed = test_disk_queue(), passed = test_priority_queue(), passed = test_parsing(), passed = test_topic_matching(), @@ -78,8 +75,7 @@ test_priority_queue() -> %% 1-element priority Q Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), + {true, false, 1, [{1, foo}], [foo]} = test_priority_queue(Q1), %% 2-element same-priority Q Q2 = priority_queue:in(bar, 1, Q1), @@ -95,42 +91,6 @@ test_priority_queue() -> Q4 = priority_queue:in(foo, -1, priority_queue:new()), {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - passed. priority_queue_in_all(Q, L) -> @@ -141,6 +101,7 @@ priority_queue_out_all(Q) -> {empty, _} -> []; {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] end. + test_priority_queue(Q) -> {priority_queue:is_queue(Q), priority_queue:is_empty(Q), @@ -447,17 +408,19 @@ test_cluster_management() -> end, ClusteringSequence), - %% convert a disk node into a ram node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(start_app, []), ok = control_action(stop_app, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), - %% join a non-existing cluster as a ram node + %% attempt to join a non-existing cluster as a ram node ok = control_action(reset, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {unable_to_contact_cluster_nodes, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), SecondaryNode = rabbit_misc:localnode(hare), case net_adm:ping(SecondaryNode) of @@ -473,12 +436,11 @@ test_cluster_management2(SecondaryNode) -> NodeS = atom_to_list(node()), SecondaryNodeS = atom_to_list(SecondaryNode), - %% make a disk node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), + {error, {unable_to_join_cluster, _, _}} = + control_action(cluster, [SecondaryNodeS]), %% join cluster as a ram node ok = control_action(reset, []), @@ -491,21 +453,21 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% join non-existing cluster as a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to join non-existing cluster as a ram node + {error, _} = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), + %% turn ram node into disk node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS, NodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% convert a disk node into a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to convert a disk node into a ram node + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn a disk node into a ram node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), @@ -780,503 +742,3 @@ bad_handle_hook(_, _, _) -> bad:bad(). extra_arg_hook(Hookname, Handler, Args, Extra1, Extra2) -> handle_hook(Hookname, Handler, {Args, Extra1, Extra2}). - -test_disk_queue() -> - rdq_stop(), - rdq_virgin(), - passed = rdq_stress_gc(5000), - passed = rdq_test_startup_with_queue_gaps(), - passed = rdq_test_redeliver(), - passed = rdq_test_purge(), - passed = rdq_test_mixed_queue_modes(), - passed = rdq_test_mode_conversion_mid_txn(), - passed = rdq_test_disk_queue_modes(), - rdq_virgin(), - passed. - -benchmark_disk_queue() -> - rdq_stop(), - % unicode chars are supported properly from r13 onwards - io:format("Msg Count\t| Msg Size\t| Queue Count\t| Startup mu s\t| Publish mu s\t| Pub mu s/msg\t| Pub mu s/byte\t| Deliver mu s\t| Del mu s/msg\t| Del mu s/byte~n", []), - [begin rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSize), - timer:sleep(1000) end || % 1000 milliseconds - MsgSize <- [512, 8192, 32768, 131072], - Qs <- [[1], lists:seq(1,10)], %, lists:seq(1,100), lists:seq(1,1000)], - MsgCount <- [1024, 4096, 16384] - ], - rdq_virgin(), - ok = control_action(stop_app, []), - ok = control_action(start_app, []), - passed. - -rdq_message(MsgId, MsgBody, IsPersistent) -> - rabbit_basic:message(x, <<>>, [], MsgBody, MsgId, IsPersistent). - -rdq_match_message( - #basic_message { guid = MsgId, content = - #content { payload_fragments_rev = [MsgBody] }}, - MsgId, MsgBody, Size) when size(MsgBody) =:= Size -> - ok. - -rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSizeBytes) -> - Startup = rdq_virgin(), - rdq_start(), - QCount = length(Qs), - Msg = <<0:(8*MsgSizeBytes)>>, - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - {Publish, ok} = - timer:tc(?MODULE, rdq_time_commands, - [[fun() -> [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) - || N <- List, _ <- Qs] end, - fun() -> [ok = rabbit_disk_queue:tx_commit(Q, CommitList, []) - || Q <- Qs] end - ]]), - {Deliver, ok} = - timer:tc( - ?MODULE, rdq_time_commands, - [[fun() -> [begin SeqIds = - [begin - Remaining = MsgCount - N, - {Message, _TSize, false, SeqId, - Remaining} = rabbit_disk_queue:deliver(Q), - ok = rdq_match_message(Message, N, Msg, MsgSizeBytes), - SeqId - end || N <- List], - ok = rabbit_disk_queue:tx_commit(Q, [], SeqIds) - end || Q <- Qs] - end]]), - io:format(" ~15.10B| ~14.10B| ~14.10B| ~14.1f| ~14.1f| ~14.6f| ~14.10f| ~14.1f| ~14.6f| ~14.10f~n", - [MsgCount, MsgSizeBytes, QCount, float(Startup), - float(Publish), (Publish / (MsgCount * QCount)), - (Publish / (MsgCount * QCount * MsgSizeBytes)), - float(Deliver), (Deliver / (MsgCount * QCount)), - (Deliver / (MsgCount * QCount * MsgSizeBytes))]), - rdq_stop(). - -% we know each file is going to be 1024*1024*10 bytes in size (10MB), -% so make sure we have several files, and then keep punching holes in -% a reasonably sensible way. -rdq_stress_gc(MsgCount) -> - rdq_virgin(), - rdq_start(), - MsgSizeBytes = 256*1024, - Msg = <<0:(8*MsgSizeBytes)>>, % 256KB - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- List], - rabbit_disk_queue:tx_commit(q, CommitList, []), - StartChunk = round(MsgCount / 20), % 5% - AckList = - lists:foldl( - fun (E, Acc) -> - case lists:member(E, Acc) of - true -> Acc; - false -> [E|Acc] - end - end, [], lists:flatten( - lists:reverse( - [ lists:seq(N, MsgCount, N) - || N <- lists:seq(1, round(MsgCount / 2), 1) - ]))), - {Start, End} = lists:split(StartChunk, AckList), - AckList2 = End ++ Start, - MsgIdToSeqDict = - lists:foldl( - fun (MsgId, Acc) -> - Remaining = MsgCount - MsgId, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, MsgId, Msg, MsgSizeBytes), - dict:store(MsgId, SeqId, Acc) - end, dict:new(), List), - %% we really do want to ack each of this individually - [begin {ok, SeqId} = dict:find(MsgId, MsgIdToSeqDict), - rabbit_disk_queue:ack(q, [SeqId]) - end || MsgId <- AckList2], - rabbit_disk_queue:tx_commit(q, [], []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_startup_with_queue_gaps() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, true)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% ack every other message we have delivered (starting at the _first_) - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:ack(q, [SeqId2]), - false; - (_SeqId2, false) -> - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Acked every other message delivered done~n", []), - rdq_stop(), - rdq_start(), - io:format("Startup (with shuffle) done~n", []), - %% should have shuffled up. So we should now get - %% lists:seq(2,500,2) already delivered - Seqs2 = [begin - Remaining = round(Total - ((Half + N)/2)), - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(2,Half,2)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - io:format("Reread non-acked messages done~n", []), - %% and now fetch the rest - Seqs3 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1 + Half,Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - io:format("Read second half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_redeliver() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% now requeue every other message (starting at the _first_) - %% and ack the other ones - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:requeue(q, [{SeqId2, true}]), - false; - (SeqId2, false) -> - rabbit_disk_queue:ack(q, [SeqId2]), - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Redeliver and acking done~n", []), - %% we should now get the 2nd half in order, followed by - %% every-other-from-the-first-half - Seqs2 = [begin - Remaining = round(Total - N + (Half/2)), - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1+Half, Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - Seqs3 = [begin - Remaining = round((Half - N) / 2) - 1, - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1, Half, 2)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_purge() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - rabbit_disk_queue:purge(q), - io:format("Purge done~n", []), - rabbit_disk_queue:tx_commit(q, [], Seqs), - io:format("Ack first half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_new_mixed_queue(Q, Durable, Disk) -> - {ok, MS} = rabbit_mixed_queue:init(Q, Durable), - {MS1, _, _, _} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - case Disk of - true -> {ok, MS2} = rabbit_mixed_queue:to_disk_only_mode([], MS1), - MS2; - false -> MS1 - end. - -rdq_test_mixed_queue_modes() -> - rdq_virgin(), - rdq_start(), - Payload = <<0:(8*256)>>, - MS = rdq_new_mixed_queue(q, true, false), - MS2 = lists:foldl( - fun (_N, MS1) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS, lists:seq(1,10)), - MS4 = lists:foldl( - fun (_N, MS3) -> - Msg = (rabbit_basic:message(x, <<>>, [], Payload)) - #basic_message { is_persistent = true }, - {ok, MS3a} = rabbit_mixed_queue:publish(Msg, MS3), - MS3a - end, MS2, lists:seq(1,10)), - MS6 = lists:foldl( - fun (_N, MS5) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS5a} = rabbit_mixed_queue:publish(Msg, MS5), - MS5a - end, MS4, lists:seq(1,10)), - 30 = rabbit_mixed_queue:length(MS6), - io:format("Published a mixture of messages; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS6)]), - {ok, MS7} = rabbit_mixed_queue:to_disk_only_mode([], MS6), - 30 = rabbit_mixed_queue:length(MS7), - io:format("Converted to disk only mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS7)]), - {ok, MS8} = rabbit_mixed_queue:to_mixed_mode([], MS7), - 30 = rabbit_mixed_queue:length(MS8), - io:format("Converted to mixed mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS8)]), - MS10 = - lists:foldl( - fun (N, MS9) -> - Rem = 30 - N, - {{#basic_message { is_persistent = false }, - false, _AckTag, Rem}, - MS9a} = rabbit_mixed_queue:deliver(MS9), - MS9a - end, MS8, lists:seq(1,10)), - 20 = rabbit_mixed_queue:length(MS10), - io:format("Delivered initial non persistent messages~n"), - {ok, MS11} = rabbit_mixed_queue:to_disk_only_mode([], MS10), - 20 = rabbit_mixed_queue:length(MS11), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS12 = rdq_new_mixed_queue(q, true, false), - 10 = rabbit_mixed_queue:length(MS12), - io:format("Recovered queue~n"), - {MS14, AckTags} = - lists:foldl( - fun (N, {MS13, AcksAcc}) -> - Rem = 10 - N, - {{Msg = #basic_message { is_persistent = true }, - false, AckTag, Rem}, - MS13a} = rabbit_mixed_queue:deliver(MS13), - {MS13a, [{Msg, AckTag} | AcksAcc]} - end, {MS12, []}, lists:seq(1,10)), - 0 = rabbit_mixed_queue:length(MS14), - {ok, MS15} = rabbit_mixed_queue:ack(AckTags, MS14), - io:format("Delivered and acked all messages~n"), - {ok, MS16} = rabbit_mixed_queue:to_disk_only_mode([], MS15), - 0 = rabbit_mixed_queue:length(MS16), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS17 = rdq_new_mixed_queue(q, true, false), - 0 = rabbit_mixed_queue:length(MS17), - {MS17,0,0,0} = rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS17), - io:format("Recovered queue~n"), - rdq_stop(), - passed. - -rdq_test_mode_conversion_mid_txn() -> - Payload = <<0:(8*256)>>, - MsgIdsA = lists:seq(0,9), - MsgsA = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsA ], - MsgIdsB = lists:seq(10,20), - MsgsB = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsB ], - - rdq_virgin(), - rdq_start(), - MS0 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS0, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, commit), - - rdq_stop_virgin_start(), - MS1 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS1, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, cancel), - - - rdq_stop_virgin_start(), - MS2 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS2, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, commit), - - rdq_stop_virgin_start(), - MS3 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS3, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, cancel), - - rdq_stop(), - passed. - -rdq_tx_publish_mixed_alter_commit_get(MS0, MsgsA, MsgsB, ChangeFun, CommitOrCancel) -> - 0 = rabbit_mixed_queue:length(MS0), - MS2 = lists:foldl( - fun (Msg, MS1) -> - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS0, MsgsA), - Len0 = length(MsgsA), - Len0 = rabbit_mixed_queue:length(MS2), - MS4 = lists:foldl( - fun (Msg, MS3) -> - {ok, MS3a} = rabbit_mixed_queue:tx_publish(Msg, MS3), - MS3a - end, MS2, MsgsB), - Len0 = rabbit_mixed_queue:length(MS4), - {ok, MS5} = ChangeFun(MsgsB, MS4), - Len0 = rabbit_mixed_queue:length(MS5), - {ok, MS9} = - case CommitOrCancel of - commit -> - {ok, MS6} = rabbit_mixed_queue:tx_commit(MsgsB, [], MS5), - Len1 = Len0 + length(MsgsB), - Len1 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len1 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA ++ MsgsB), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8); - cancel -> - {ok, MS6} = rabbit_mixed_queue:tx_cancel(MsgsB, MS5), - Len0 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len0 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8) - end, - 0 = rabbit_mixed_queue:length(MS9), - Msg = rdq_message(0, <<0:256>>, false), - {ok, AckTag, MS10} = rabbit_mixed_queue:publish_delivered(Msg, MS9), - {ok,MS11} = rabbit_mixed_queue:ack([{Msg, AckTag}], MS10), - 0 = rabbit_mixed_queue:length(MS11), - passed. - -rdq_test_disk_queue_modes() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half1 = lists:seq(1,round(Total/2)), - Half2 = lists:seq(1 + round(Total/2), Total), - CommitHalf1 = lists:zip(Half1, lists:duplicate(round(Total/2), false)), - CommitHalf2 = lists:zip(Half2, lists:duplicate - (Total - round(Total/2), false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half1], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf1, []), - io:format("Publish done~n", []), - ok = rabbit_disk_queue:to_disk_only_mode(), - io:format("To Disk Only done~n", []), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half2], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf2, []), - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half1], - io:format("Deliver first half done~n", []), - ok = rabbit_disk_queue:to_ram_disk_mode(), - io:format("To RAM Disk done~n", []), - Seqs2 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half2], - io:format("Deliver second half done~n", []), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs), - ok = rabbit_disk_queue:to_disk_only_mode(), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs2), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_time_commands(Funcs) -> - lists:foreach(fun (F) -> F() end, Funcs). - -rdq_virgin() -> - {Micros, {ok, _}} = - timer:tc(rabbit_disk_queue, start_link, []), - ok = rabbit_disk_queue:stop_and_obliterate(), - timer:sleep(1000), - Micros. - -rdq_start() -> - {ok, _} = rabbit_disk_queue:start_link(), - ok = rabbit_disk_queue:to_ram_disk_mode(), - ok. - -rdq_stop() -> - rabbit_disk_queue:stop(), - timer:sleep(1000). - -rdq_stop_virgin_start() -> - rdq_stop(), - rdq_virgin(), - rdq_start(). -- cgit v1.2.1 From 53073fe20c6cacc167acf7ea25ef744ca3d8c72f Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 17 Aug 2009 17:10:31 +0100 Subject: reversed everything but the changes to priority_queue and their tests. To QA this, find the diff between this and the default rev a53ac6a45325 --- Makefile | 7 +- include/rabbit.hrl | 8 +- scripts/rabbitmq-server | 3 +- scripts/rabbitmq-server.bat | 3 +- scripts/rabbitmq-service.bat | 3 +- src/rabbit.erl | 16 +- src/rabbit_alarm.erl | 52 +- src/rabbit_amqqueue.erl | 88 +- src/rabbit_amqqueue_process.erl | 568 +++++------ src/rabbit_basic.erl | 17 +- src/rabbit_channel.erl | 7 +- src/rabbit_control.erl | 22 +- src/rabbit_disk_queue.erl | 1973 ------------------------------------- src/rabbit_guid.erl | 22 +- src/rabbit_memsup.erl | 126 --- src/rabbit_memsup_darwin.erl | 102 -- src/rabbit_memsup_linux.erl | 99 +- src/rabbit_misc.erl | 40 +- src/rabbit_mixed_queue.erl | 596 ----------- src/rabbit_mnesia.erl | 93 +- src/rabbit_persister.erl | 523 ++++++++++ src/rabbit_queue_mode_manager.erl | 496 ---------- src/rabbit_queue_prefetcher.erl | 258 ----- src/rabbit_tests.erl | 542 +--------- 24 files changed, 991 insertions(+), 4673 deletions(-) delete mode 100644 src/rabbit_disk_queue.erl delete mode 100644 src/rabbit_memsup.erl delete mode 100644 src/rabbit_memsup_darwin.erl delete mode 100644 src/rabbit_mixed_queue.erl create mode 100644 src/rabbit_persister.erl delete mode 100644 src/rabbit_queue_mode_manager.erl delete mode 100644 src/rabbit_queue_prefetcher.erl diff --git a/Makefile b/Makefile index 05464ca1..c3b0c598 100644 --- a/Makefile +++ b/Makefile @@ -20,10 +20,10 @@ PYTHON=python ifndef USE_SPECS # our type specs rely on features / bug fixes in dialyzer that are -# only available in R13B upwards (R13B is eshell 5.7.1) +# only available in R12B-3 upwards # # NB: the test assumes that version number will only contain single digits -USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.0" ]; then echo "true"; else echo "false"; fi) +USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.6.2" ]; then echo "true"; else echo "false"; fi) endif #other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests @@ -101,8 +101,7 @@ run-tests: all start-background-node: $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server ; sleep 1 + ./scripts/rabbitmq-server -detached; sleep 1 start-rabbit-on-node: all echo "rabbit:start()." | $(ERL_CALL) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 0ba31cb5..784c21b3 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -62,10 +62,7 @@ -record(listener, {node, protocol, host, port}). --record(basic_message, {exchange_name, routing_key, content, - guid, is_persistent}). - --record(dq_msg_loc, {queue_and_seq_id, is_delivered, msg_id}). +-record(basic_message, {exchange_name, routing_key, content, persistent_key}). -record(delivery, {mandatory, immediate, txn, sender, message}). @@ -137,8 +134,7 @@ #basic_message{exchange_name :: exchange_name(), routing_key :: routing_key(), content :: content(), - guid :: guid(), - is_persistent :: bool()}). + persistent_key :: maybe(pkey())}). -type(message() :: basic_message()). -type(delivery() :: #delivery{mandatory :: bool(), diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index f802ec4c..547220b4 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -105,9 +105,8 @@ exec erl \ -os_mon start_memsup false \ -os_mon start_os_sup false \ -os_mon memsup_system_only true \ - -os_mon system_memory_high_watermark 0.8 \ + -os_mon system_memory_high_watermark 0.95 \ -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - -mnesia dump_log_write_threshold 10000 \ ${RABBITMQ_CLUSTER_CONFIG_OPTION} \ ${RABBITMQ_SERVER_START_ARGS} \ "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 3b6e4938..b4868841 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -134,9 +134,8 @@ if exist "%RABBITMQ_EBIN_ROOT%\rabbit.boot" ( -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat index 82aa4d5c..29be1742 100755 --- a/scripts/rabbitmq-service.bat +++ b/scripts/rabbitmq-service.bat @@ -175,9 +175,8 @@ set ERLANG_SERVICE_ARGUMENTS= ^ -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/src/rabbit.erl b/src/rabbit.erl index 88c60eb9..b0d62b5a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -139,8 +139,6 @@ start(normal, []) -> {ok, MemoryAlarms} = application:get_env(memory_alarms), ok = rabbit_alarm:start(MemoryAlarms), - - ok = start_child(rabbit_queue_mode_manager), ok = rabbit_binary_generator: check_empty_content_body_frame_size(), @@ -148,19 +146,15 @@ start(normal, []) -> ok = start_child(rabbit_router), ok = start_child(rabbit_node_monitor) end}, - {"disk queue", - fun () -> - ok = start_child(rabbit_disk_queue) - end}, {"recovery", fun () -> ok = maybe_insert_default_data(), ok = rabbit_exchange:recover(), - {ok, DurableQueues} = rabbit_amqqueue:recover(), - DurableQueueNames = - sets:from_list([ Q #amqqueue.name || Q <- DurableQueues ]), - ok = rabbit_disk_queue:delete_non_durable_queues( - DurableQueueNames) + ok = rabbit_amqqueue:recover() + end}, + {"persister", + fun () -> + ok = start_child(rabbit_persister) end}, {"guid generator", fun () -> diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 309c9a0e..21999f16 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -41,7 +41,7 @@ -define(MEMSUP_CHECK_INTERVAL, 1000). %% OSes on which we know memory alarms to be trustworthy --define(SUPPORTED_OS, [{unix, linux}, {unix, darwin}]). +-define(SUPPORTED_OS, [{unix, linux}]). -record(alarms, {alertees, system_memory_high_watermark = false}). @@ -136,35 +136,33 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- start_memsup() -> - {Mod, Args} = - case os:type() of - %% memsup doesn't take account of buffers or cache when - %% considering "free" memory - therefore on Linux we can - %% get memory alarms very easily without any pressure - %% existing on memory at all. Therefore we need to use - %% our own simple memory monitor. - %% - {unix, linux} -> {rabbit_memsup, [rabbit_memsup_linux]}; - {unix, darwin} -> {rabbit_memsup, [rabbit_memsup_darwin]}; - - %% Start memsup programmatically rather than via the - %% rabbitmq-server script. This is not quite the right - %% thing to do as os_mon checks to see if memsup is - %% available before starting it, but as memsup is - %% available everywhere (even on VXWorks) it should be - %% ok. - %% - %% One benefit of the programmatic startup is that we - %% can add our alarm_handler before memsup is running, - %% thus ensuring that we notice memory alarms that go - %% off on startup. - %% - _ -> {memsup, []} - end, + Mod = case os:type() of + %% memsup doesn't take account of buffers or cache when + %% considering "free" memory - therefore on Linux we can + %% get memory alarms very easily without any pressure + %% existing on memory at all. Therefore we need to use + %% our own simple memory monitor. + %% + {unix, linux} -> rabbit_memsup_linux; + + %% Start memsup programmatically rather than via the + %% rabbitmq-server script. This is not quite the right + %% thing to do as os_mon checks to see if memsup is + %% available before starting it, but as memsup is + %% available everywhere (even on VXWorks) it should be + %% ok. + %% + %% One benefit of the programmatic startup is that we + %% can add our alarm_handler before memsup is running, + %% thus ensuring that we notice memory alarms that go + %% off on startup. + %% + _ -> memsup + end, %% This is based on os_mon:childspec(memsup, true) {ok, _} = supervisor:start_child( os_mon_sup, - {memsup, {Mod, start_link, Args}, + {memsup, {Mod, start_link, []}, permanent, 2000, worker, [Mod]}), ok. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 62ea465d..4903c2c5 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,6 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/3, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -63,7 +62,7 @@ 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). -spec(start/0 :: () -> 'ok'). --spec(recover/0 :: () -> {'ok', [amqqueue()]}). +-spec(recover/0 :: () -> 'ok'). -spec(declare/4 :: (queue_name(), bool(), bool(), amqp_table()) -> amqqueue()). -spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). @@ -102,13 +101,10 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). --spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). --spec(report_memory/1 :: (pid()) -> 'ok'). -endif. @@ -123,42 +119,37 @@ start() -> ok. recover() -> - {ok, DurableQueues} = recover_durable_queues(), - {ok, DurableQueues}. + ok = recover_durable_queues(), + ok. recover_durable_queues() -> Node = node(), - DurableQueues = - lists:foldl( - fun (RecoveredQ, Acc) -> - Q = start_queue_process(RecoveredQ), - %% We need to catch the case where a client connected to - %% another node has deleted the queue (and possibly - %% re-created it). - case rabbit_misc:execute_mnesia_transaction( - fun () -> - Match = - mnesia:match_object( - rabbit_durable_queue, RecoveredQ, read), - case Match of - [_] -> ok = store_queue(Q), - true; - [] -> false - end - end) of - true -> [Q|Acc]; - false -> exit(Q#amqqueue.pid, shutdown), - Acc - end - end, [], - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end)), - {ok, DurableQueues}. + lists:foreach( + fun (RecoveredQ) -> + Q = start_queue_process(RecoveredQ), + %% We need to catch the case where a client connected to + %% another node has deleted the queue (and possibly + %% re-created it). + case rabbit_misc:execute_mnesia_transaction( + fun () -> case mnesia:match_object( + rabbit_durable_queue, RecoveredQ, read) of + [_] -> ok = store_queue(Q), + true; + [] -> false + end + end) of + true -> ok; + false -> exit(Q#amqqueue.pid, shutdown) + end + end, + %% TODO: use dirty ops instead + rabbit_misc:execute_mnesia_transaction( + fun () -> + qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} + <- mnesia:table(rabbit_durable_queue), + node(Pid) == Node])) + end)), + ok. declare(QueueName, Durable, AutoDelete, Args) -> Q = start_queue_process(#amqqueue{name = QueueName, @@ -225,23 +216,6 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). -set_mode_pin(VHostPath, Queue, Disk) - when is_binary(VHostPath) andalso is_binary(Queue) -> - with(rabbit_misc:r(VHostPath, queue, Queue), - fun(Q) -> case Disk of - true -> rabbit_queue_mode_manager:pin_to_disk - (Q #amqqueue.pid); - false -> rabbit_queue_mode_manager:unpin_from_disk - (Q #amqqueue.pid) - end - end). - -set_mode(QPid, Mode) -> - gen_server2:pcast(QPid, 10, {set_mode, Mode}). - -report_memory(QPid) -> - gen_server2:cast(QPid, report_memory). - info(#amqqueue{ pid = QPid }) -> gen_server2:pcall(QPid, 9, info, infinity). @@ -329,10 +303,10 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> infinity). notify_sent(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {notify_sent, ChPid}). + gen_server2:cast(QPid, {notify_sent, ChPid}). unblock(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {unblock, ChPid}). + gen_server2:cast(QPid, {unblock, ChPid}). internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 14a0370d..fe2e8509 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -38,12 +38,10 @@ -define(UNSENT_MESSAGE_LIMIT, 100). -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds -export([start_link/1]). --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1]). +-export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]). -import(queue). -import(erlang). @@ -54,12 +52,10 @@ owner, exclusive_consumer, has_had_consumers, - mixed_state, next_msg_id, + message_buffer, active_consumers, - blocked_consumers, - memory_report_timer - }). + blocked_consumers}). -record(consumer, {tag, ack_required}). @@ -88,9 +84,7 @@ acks_uncommitted, consumers, transactions, - memory, - mode - ]). + memory]). %%---------------------------------------------------------------------------- @@ -99,35 +93,24 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable }) -> +init(Q) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), - ok = rabbit_queue_mode_manager:register - (self(), false, rabbit_amqqueue, set_mode, [self()]), - {ok, MS} = rabbit_mixed_queue:init(QName, Durable), - State = #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - mixed_state = MS, - next_msg_id = 1, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - memory_report_timer = undefined - }, - %% first thing we must do is report_memory which will clear out - %% the 'undefined' values in gain and loss in mixed_queue state - {ok, start_memory_timer(State), hibernate, + {ok, #q{q = Q, + owner = none, + exclusive_consumer = none, + has_had_consumers = false, + next_msg_id = 1, + message_buffer = queue:new(), + active_consumers = queue:new(), + blocked_consumers = queue:new()}, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. terminate(_Reason, State) -> %% FIXME: How do we cancel active subscriptions? QName = qname(State), - NewState = - lists:foldl(fun (Txn, State1) -> - rollback_transaction(Txn, State1) - end, State, all_tx()), - rabbit_mixed_queue:delete_queue(NewState #q.mixed_state), - stop_memory_timer(NewState), + lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, + all_tx()), + ok = purge_message_buffer(QName, State#q.message_buffer), ok = rabbit_amqqueue:internal_delete(QName). code_change(_OldVsn, State, _Extra) -> @@ -135,24 +118,9 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- -reply(Reply, NewState) -> - {reply, Reply, start_memory_timer(NewState), hibernate}. +reply(Reply, NewState) -> {reply, Reply, NewState, hibernate}. -noreply(NewState) -> - {noreply, start_memory_timer(NewState), hibernate}. - -start_memory_timer(State = #q { memory_report_timer = undefined }) -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_amqqueue, report_memory, [self()]), - report_memory(false, State #q { memory_report_timer = TRef }); -start_memory_timer(State) -> - State. - -stop_memory_timer(State = #q { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #q { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #q { memory_report_timer = undefined }. +noreply(NewState) -> {noreply, NewState, hibernate}. lookup_ch(ChPid) -> case get({ch, ChPid}) of @@ -199,11 +167,12 @@ record_current_channel_tx(ChPid, Txn) -> %% that wasn't happening already) store_ch_record((ch_record(ChPid))#cr{txn = Txn}). -deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers, - next_msg_id = NextId}) -> +deliver_immediately(Message, Delivered, + State = #q{q = #amqqueue{name = QName}, + active_consumers = ActiveConsumers, + blocked_consumers = BlockedConsumers, + next_msg_id = NextId}) -> + ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), case queue:out(ActiveConsumers) of {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, ack_required = AckRequired}}}, @@ -211,21 +180,15 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, C = #cr{limiter_pid = LimiterPid, unsent_message_count = Count, unacked_messages = UAM} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of + case rabbit_limiter:can_send(LimiterPid, self(), AckRequired) of true -> - {{Msg, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Msg]), rabbit_channel:deliver( ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, IsDelivered, Msg}), - NewUAM = - case AckRequired of - true -> dict:store(NextId, {Msg, AckTag}, UAM); - false -> UAM - end, + {QName, self(), NextId, Delivered, Message}), + NewUAM = case AckRequired of + true -> dict:store(NextId, Message, UAM); + false -> UAM + end, NewC = C#cr{unsent_message_count = Count + 1, unacked_messages = NewUAM}, store_ch_record(NewC), @@ -241,113 +204,54 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, {ActiveConsumers1, queue:in(QEntry, BlockedConsumers1)} end, - State2 = State1 #q { - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers, - next_msg_id = NextId + 1 - }, - deliver_queue(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> + {offered, AckRequired, + State#q{active_consumers = NewActiveConsumers, + blocked_consumers = NewBlockedConsumers, + next_msg_id = NextId + 1}}; + false -> store_ch_record(C#cr{is_limit_active = true}), {NewActiveConsumers, NewBlockedConsumers} = move_consumers(ChPid, ActiveConsumers, BlockedConsumers), - deliver_queue( - Funs, FunAcc, + deliver_immediately( + Message, Delivered, State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} + blocked_consumers = NewBlockedConsumers}) end; {empty, _} -> - {FunAcc, State} + {not_offered, State} end. -deliver_from_queue_pred({IsEmpty, _AutoAcks}, _State) -> - not IsEmpty. -deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, - State = #q { mixed_state = MS }) -> - {{Msg, IsDelivered, AckTag, Remaining}, MS1} = - rabbit_mixed_queue:deliver(MS), - AutoAcks1 = - case AckRequired of - true -> AutoAcks; - false -> [{Msg, AckTag} | AutoAcks] - end, - {{Msg, IsDelivered, AckTag}, {0 == Remaining, AutoAcks1}, - State #q { mixed_state = MS1 }}. - -run_message_queue(State = #q { mixed_state = MS }) -> - Funs = { fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3 }, - IsEmpty = rabbit_mixed_queue:is_empty(MS), - {{_IsEmpty1, AutoAcks}, State1} = - deliver_queue(Funs, {IsEmpty, []}, State), - {ok, MS1} = - rabbit_mixed_queue:ack(AutoAcks, State1 #q.mixed_state), - State1 #q { mixed_state = MS1 }. - -attempt_immediate_delivery(none, _ChPid, Msg, State) -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1) -> - {AckTag, State2} = - case AckRequired of - true -> - {ok, AckTag1, MS} = - rabbit_mixed_queue:publish_delivered( - Msg, State1 #q.mixed_state), - {AckTag1, State1 #q { mixed_state = MS }}; - false -> - {noack, State1} - end, - {{Msg, false, AckTag}, true, State2} - end, - deliver_queue({ PredFun, DeliverFun }, false, State); -attempt_immediate_delivery(Txn, ChPid, Msg, State) -> - {ok, MS} = rabbit_mixed_queue:tx_publish(Msg, State #q.mixed_state), - record_pending_message(Txn, ChPid, Msg), - {true, State #q { mixed_state = MS }}. - -deliver_or_enqueue(Txn, ChPid, Msg, State) -> - case attempt_immediate_delivery(Txn, ChPid, Msg, State) of +attempt_delivery(none, _ChPid, Message, State) -> + case deliver_immediately(Message, false, State) of + {offered, false, State1} -> + {true, State1}; + {offered, true, State1} -> + persist_message(none, qname(State), Message), + persist_delivery(qname(State), Message, false), + {true, State1}; + {not_offered, State1} -> + {false, State1} + end; +attempt_delivery(Txn, ChPid, Message, State) -> + persist_message(Txn, qname(State), Message), + record_pending_message(Txn, ChPid, Message), + {true, State}. + +deliver_or_enqueue(Txn, ChPid, Message, State) -> + case attempt_delivery(Txn, ChPid, Message, State) of {true, NewState} -> {true, NewState}; {false, NewState} -> - %% Txn is none and no unblocked channels with consumers - {ok, MS} = rabbit_mixed_queue:publish(Msg, State #q.mixed_state), - {false, NewState #q { mixed_state = MS }} - end. - -%% all these messages have already been delivered at least once and -%% not ack'd, but need to be either redelivered or requeued -deliver_or_requeue_n([], State) -> - run_message_queue(State); -deliver_or_requeue_n(MsgsWithAcks, State) -> - Funs = { fun deliver_or_requeue_msgs_pred/2, - fun deliver_or_requeue_msgs_deliver/3 }, - {{_RemainingLengthMinusOne, AutoAcks, OutstandingMsgs}, NewState} = - deliver_queue(Funs, {length(MsgsWithAcks) - 1, [], MsgsWithAcks}, - State), - {ok, MS} = rabbit_mixed_queue:ack(AutoAcks, - NewState #q.mixed_state), - case OutstandingMsgs of - [] -> run_message_queue(NewState #q { mixed_state = MS }); - _ -> {ok, MS1} = rabbit_mixed_queue:requeue(OutstandingMsgs, MS), - NewState #q { mixed_state = MS1 } + persist_message(Txn, qname(State), Message), + NewMB = queue:in({Message, false}, NewState#q.message_buffer), + {false, NewState#q{message_buffer = NewMB}} end. -deliver_or_requeue_msgs_pred({Len, _AcksAcc, _MsgsWithAcks}, _State) -> - -1 < Len. -deliver_or_requeue_msgs_deliver( - false, {Len, AcksAcc, [(MsgAckTag = {Msg, _}) | MsgsWithAcks]}, State) -> - {{Msg, true, noack}, {Len - 1, [MsgAckTag | AcksAcc], MsgsWithAcks}, State}; -deliver_or_requeue_msgs_deliver( - true, {Len, AcksAcc, [{Msg, AckTag} | MsgsWithAcks]}, State) -> - {{Msg, true, AckTag}, {Len - 1, AcksAcc, MsgsWithAcks}, State}. +deliver_or_enqueue_n(Messages, State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(queue:join(MessageBuffer, queue:from_list(Messages)), + State). add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). @@ -381,7 +285,7 @@ possibly_unblock(State, ChPid, Update) -> move_consumers(ChPid, State#q.blocked_consumers, State#q.active_consumers), - run_message_queue( + run_poke_burst( State#q{active_consumers = NewActiveConsumers, blocked_consumers = NewBlockedeConsumers}) end @@ -398,27 +302,27 @@ handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> unacked_messages = UAM} -> erlang:demonitor(MonitorRef), erase({ch, ChPid}), - State1 = - case Txn of - none -> State; - _ -> rollback_transaction(Txn, State) - end, - State2 = - deliver_or_requeue_n( - [MsgWithAck || - {_MsgId, MsgWithAck} <- dict:to_list(UAM)], - State1 #q { + case Txn of + none -> ok; + _ -> ok = rollback_work(Txn, qname(State)), + erase_tx(Txn) + end, + NewState = + deliver_or_enqueue_n( + [{Message, true} || + {_Messsage_id, Message} <- dict:to_list(UAM)], + State#q{ exclusive_consumer = case Holder of {ChPid, _} -> none; Other -> Other end, active_consumers = remove_consumers( - ChPid, State1#q.active_consumers), + ChPid, State#q.active_consumers), blocked_consumers = remove_consumers( - ChPid, State1#q.blocked_consumers)}), - case should_auto_delete(State2) of - false -> noreply(State2); - true -> {stop, normal, State2} + ChPid, State#q.blocked_consumers)}), + case should_auto_delete(NewState) of + false -> noreply(NewState); + true -> {stop, normal, NewState} end end. @@ -441,6 +345,26 @@ check_exclusive_access(none, true, State) -> false -> in_use end. +run_poke_burst(State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(MessageBuffer, State). + +run_poke_burst(MessageBuffer, State) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> + case deliver_immediately(Message, Delivered, State) of + {offered, true, NewState} -> + persist_delivery(qname(State), Message, Delivered), + run_poke_burst(BufferTail, NewState); + {offered, false, NewState} -> + persist_auto_ack(qname(State), Message), + run_poke_burst(BufferTail, NewState); + {not_offered, NewState} -> + NewState#q{message_buffer = MessageBuffer} + end; + {empty, _} -> + State#q{message_buffer = MessageBuffer} + end. + is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso queue:is_empty(State#q.blocked_consumers). @@ -449,6 +373,62 @@ maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). qname(#q{q = #amqqueue{name = QName}}) -> QName. +persist_message(_Txn, _QName, #basic_message{persistent_key = none}) -> + ok; +persist_message(Txn, QName, Message) -> + M = Message#basic_message{ + %% don't persist any recoverable decoded properties, rebuild from properties_bin on restore + content = rabbit_binary_parser:clear_decoded_content( + Message#basic_message.content)}, + persist_work(Txn, QName, + [{publish, M, {QName, M#basic_message.persistent_key}}]). + +persist_delivery(_QName, _Message, + true) -> + ok; +persist_delivery(_QName, #basic_message{persistent_key = none}, + _Delivered) -> + ok; +persist_delivery(QName, #basic_message{persistent_key = PKey}, + _Delivered) -> + persist_work(none, QName, [{deliver, {QName, PKey}}]). + +persist_acks(Txn, QName, Messages) -> + persist_work(Txn, QName, + [{ack, {QName, PKey}} || + #basic_message{persistent_key = PKey} <- Messages, + PKey =/= none]). + +persist_auto_ack(_QName, #basic_message{persistent_key = none}) -> + ok; +persist_auto_ack(QName, #basic_message{persistent_key = PKey}) -> + %% auto-acks are always non-transactional + rabbit_persister:dirty_work([{ack, {QName, PKey}}]). + +persist_work(_Txn,_QName, []) -> + ok; +persist_work(none, _QName, WorkList) -> + rabbit_persister:dirty_work(WorkList); +persist_work(Txn, QName, WorkList) -> + mark_tx_persistent(Txn), + rabbit_persister:extend_transaction({Txn, QName}, WorkList). + +commit_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:commit_transaction/1, + Txn, QName). + +rollback_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:rollback_transaction/1, + Txn, QName). + +%% optimisation: don't do unnecessary work +%% it would be nice if this was handled by the persister +do_if_persistent(F, Txn, QName) -> + case is_tx_persistent(Txn) of + false -> ok; + true -> ok = F({Txn, QName}) + end. + lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx{ch_pid = none, @@ -470,14 +450,19 @@ all_tx_record() -> all_tx() -> [Txn || {{txn, Txn}, _} <- get()]. -record_pending_message(Txn, ChPid, Message = - #basic_message { is_persistent = IsPersistent }) -> - Tx = #tx{pending_messages = Pending, is_persistent = IsPersistentTxn } = - lookup_tx(Txn), +mark_tx_persistent(Txn) -> + Tx = lookup_tx(Txn), + store_tx(Txn, Tx#tx{is_persistent = true}). + +is_tx_persistent(Txn) -> + #tx{is_persistent = Res} = lookup_tx(Txn), + Res. + +record_pending_message(Txn, ChPid, Message) -> + Tx = #tx{pending_messages = Pending} = lookup_tx(Txn), record_current_channel_tx(ChPid, Txn), - store_tx(Txn, Tx #tx { pending_messages = [Message | Pending], - is_persistent = IsPersistentTxn orelse IsPersistent - }). + store_tx(Txn, Tx#tx{pending_messages = [{Message, false} | Pending], + ch_pid = ChPid}). record_pending_acks(Txn, ChPid, MsgIds) -> Tx = #tx{pending_acks = Pending} = lookup_tx(Txn), @@ -485,53 +470,48 @@ record_pending_acks(Txn, ChPid, MsgIds) -> store_tx(Txn, Tx#tx{pending_acks = [MsgIds | Pending], ch_pid = ChPid}). -commit_transaction(Txn, State) -> - #tx { ch_pid = ChPid, - pending_messages = PendingMessages, - pending_acks = PendingAcks - } = lookup_tx(Txn), - PendingMessagesOrdered = lists:reverse(PendingMessages), - PendingAcksOrdered = lists:append(PendingAcks), - Acks = - case lookup_ch(ChPid) of - not_found -> []; - C = #cr { unacked_messages = UAM } -> - {MsgWithAcks, Remaining} = - collect_messages(PendingAcksOrdered, UAM), - store_ch_record(C#cr{unacked_messages = Remaining}), - MsgWithAcks - end, - {ok, MS} = rabbit_mixed_queue:tx_commit( - PendingMessagesOrdered, Acks, State #q.mixed_state), - State #q { mixed_state = MS }. - -rollback_transaction(Txn, State) -> - #tx { pending_messages = PendingMessages - } = lookup_tx(Txn), - {ok, MS} = rabbit_mixed_queue:tx_cancel(PendingMessages, - State #q.mixed_state), - erase_tx(Txn), - State #q { mixed_state = MS }. +process_pending(Txn, State) -> + #tx{ch_pid = ChPid, + pending_messages = PendingMessages, + pending_acks = PendingAcks} = lookup_tx(Txn), + case lookup_ch(ChPid) of + not_found -> ok; + C = #cr{unacked_messages = UAM} -> + {_Acked, Remaining} = + collect_messages(lists:append(PendingAcks), UAM), + store_ch_record(C#cr{unacked_messages = Remaining}) + end, + deliver_or_enqueue_n(lists:reverse(PendingMessages), State). -%% {A, B} = collect_messages(C, D) %% A = C `intersect` D; B = D \\ C -%% err, A = C `intersect` D , via projection through the dict that is C collect_messages(MsgIds, UAM) -> lists:mapfoldl( fun (MsgId, D) -> {dict:fetch(MsgId, D), dict:erase(MsgId, D)} end, UAM, MsgIds). +purge_message_buffer(QName, MessageBuffer) -> + Messages = + [[Message || {Message, _Delivered} <- + queue:to_list(MessageBuffer)] | + lists:map( + fun (#cr{unacked_messages = UAM}) -> + [Message || {_MessageId, Message} <- dict:to_list(UAM)] + end, + all_ch_record())], + %% the simplest, though certainly not the most obvious or + %% efficient, way to purge messages from the persister is to + %% artifically ack them. + persist_acks(none, QName, lists:append(Messages)). + infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. i(name, #q{q = #amqqueue{name = Name}}) -> Name; i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(mode, #q{ mixed_state = MS }) -> - rabbit_mixed_queue:info(MS); i(pid, _) -> self(); -i(messages_ready, #q { mixed_state = MS }) -> - rabbit_mixed_queue:length(MS); +i(messages_ready, #q{message_buffer = MessageBuffer}) -> + queue:len(MessageBuffer); i(messages_unacknowledged, _) -> lists:sum([dict:size(UAM) || #cr{unacked_messages = UAM} <- all_ch_record()]); @@ -555,12 +535,6 @@ i(memory, _) -> i(Item, _) -> throw({bad_argument, Item}). -report_memory(Hib, State = #q { mixed_state = MS }) -> - {MS1, MSize, Gain, Loss} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - rabbit_queue_mode_manager:report_memory(self(), MSize, Gain, Loss, Hib), - State #q { mixed_state = MS1 }. - %--------------------------------------------------------------------------- handle_call(info, _From, State) -> @@ -586,8 +560,7 @@ handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> %% just all ready-to-consume queues get the message, with unready %% queues discarding the message? %% - {Delivered, NewState} = - attempt_immediate_delivery(Txn, ChPid, Message, State), + {Delivered, NewState} = attempt_delivery(Txn, ChPid, Message, State), reply(Delivered, NewState); handle_call({deliver, Txn, Message, ChPid}, _From, State) -> @@ -596,11 +569,12 @@ handle_call({deliver, Txn, Message, ChPid}, _From, State) -> reply(Delivered, NewState); handle_call({commit, Txn}, From, State) -> - NewState = commit_transaction(Txn, State), + ok = commit_work(Txn, qname(State)), %% optimisation: we reply straight away so the sender can continue gen_server2:reply(From, ok), + NewState = process_pending(Txn, State), erase_tx(Txn), - noreply(run_message_queue(NewState)); + noreply(NewState); handle_call({notify_down, ChPid}, From, State) -> %% optimisation: we reply straight away so the sender can continue @@ -610,27 +584,25 @@ handle_call({notify_down, ChPid}, From, State) -> handle_call({basic_get, ChPid, NoAck}, _From, State = #q{q = #amqqueue{name = QName}, next_msg_id = NextId, - mixed_state = MS - }) -> - case rabbit_mixed_queue:deliver(MS) of - {empty, MS1} -> reply(empty, State #q { mixed_state = MS1 }); - {{Msg, IsDelivered, AckTag, Remaining}, MS1} -> + message_buffer = MessageBuffer}) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> AckRequired = not(NoAck), - {ok, MS3} = - case AckRequired of - true -> - C = #cr{unacked_messages = UAM} = ch_record(ChPid), - NewUAM = dict:store(NextId, {Msg, AckTag}, UAM), - store_ch_record(C#cr{unacked_messages = NewUAM}), - {ok, MS1}; - false -> - rabbit_mixed_queue:ack([{Msg, AckTag}], MS1) - end, - Message = {QName, self(), NextId, IsDelivered, Msg}, - reply({ok, Remaining, Message}, - State #q { next_msg_id = NextId + 1, - mixed_state = MS3 - }) + case AckRequired of + true -> + persist_delivery(QName, Message, Delivered), + C = #cr{unacked_messages = UAM} = ch_record(ChPid), + NewUAM = dict:store(NextId, Message, UAM), + store_ch_record(C#cr{unacked_messages = NewUAM}); + false -> + persist_auto_ack(QName, Message) + end, + Msg = {QName, self(), NextId, Delivered, Message}, + reply({ok, queue:len(BufferTail), Msg}, + State#q{message_buffer = BufferTail, + next_msg_id = NextId + 1}); + {empty, _} -> + reply(empty, State) end; handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, @@ -651,14 +623,15 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, ack_required = not(NoAck)}, store_ch_record(C#cr{consumer_count = ConsumerCount +1, limiter_pid = LimiterPid}), - case ConsumerCount of - 0 -> ok = rabbit_limiter:register(LimiterPid, self()); - _ -> ok + if ConsumerCount == 0 -> + ok = rabbit_limiter:register(LimiterPid, self()); + true -> + ok end, - ExclusiveConsumer = case ExclusiveConsume of - true -> {ChPid, ConsumerTag}; - false -> ExistingHolder - end, + ExclusiveConsumer = + if ExclusiveConsume -> {ChPid, ConsumerTag}; + true -> ExistingHolder + end, State1 = State#q{has_had_consumers = true, exclusive_consumer = ExclusiveConsumer}, ok = maybe_send_reply(ChPid, OkMsg), @@ -669,7 +642,7 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, add_consumer( ChPid, Consumer, State1#q.blocked_consumers)}; - false -> run_message_queue( + false -> run_poke_burst( State1#q{ active_consumers = add_consumer( @@ -688,10 +661,11 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, reply(ok, State); C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - ok = case ConsumerCount of - 1 -> rabbit_limiter:unregister(LimiterPid, self()); - _ -> ok - end, + if ConsumerCount == 1 -> + ok = rabbit_limiter:unregister(LimiterPid, self()); + true -> + ok + end, ok = maybe_send_reply(ChPid, OkMsg), NewState = State#q{exclusive_consumer = cancel_holder(ChPid, @@ -710,15 +684,14 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, end; handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, - mixed_state = MS, + message_buffer = MessageBuffer, active_consumers = ActiveConsumers}) -> - Length = rabbit_mixed_queue:length(MS), - reply({ok, Name, Length, queue:len(ActiveConsumers)}, State); + reply({ok, Name, queue:len(MessageBuffer), queue:len(ActiveConsumers)}, + State); handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q { mixed_state = MS }) -> - Length = rabbit_mixed_queue:length(MS), - IsEmpty = Length == 0, + State = #q{message_buffer = MessageBuffer}) -> + IsEmpty = queue:is_empty(MessageBuffer), IsUnused = is_unused(State), if IfEmpty and not(IsEmpty) -> @@ -726,16 +699,16 @@ handle_call({delete, IfUnused, IfEmpty}, _From, IfUnused and not(IsUnused) -> reply({error, in_use}, State); true -> - {stop, normal, {ok, Length}, State} + {stop, normal, {ok, queue:len(MessageBuffer)}, State} end; -handle_call(purge, _From, State) -> - {Count, MS} = rabbit_mixed_queue:purge(State #q.mixed_state), - reply({ok, Count}, - State #q { mixed_state = MS }); +handle_call(purge, _From, State = #q{message_buffer = MessageBuffer}) -> + ok = purge_message_buffer(qname(State), MessageBuffer), + reply({ok, queue:len(MessageBuffer)}, + State#q{message_buffer = queue:new()}); -handle_call({claim_queue, ReaderPid}, _From, - State = #q{owner = Owner, exclusive_consumer = Holder}) -> +handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, + exclusive_consumer = Holder}) -> case Owner of none -> case check_exclusive_access(Holder, true, State) of @@ -748,10 +721,7 @@ handle_call({claim_queue, ReaderPid}, _From, %% pid... reply(locked, State); ok -> - reply(ok, State #q { owner = - {ReaderPid, - erlang:monitor(process, ReaderPid)} }) - + reply(ok, State#q{owner = {ReaderPid, erlang:monitor(process, ReaderPid)}}) end; {ReaderPid, _MonitorRef} -> reply(ok, State); @@ -769,21 +739,24 @@ handle_cast({ack, Txn, MsgIds, ChPid}, State) -> not_found -> noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, Remaining} = collect_messages(MsgIds, UAM), + {Acked, Remaining} = collect_messages(MsgIds, UAM), + persist_acks(Txn, qname(State), Acked), case Txn of none -> - {ok, MS} = - rabbit_mixed_queue:ack(MsgWithAcks, State #q.mixed_state), - store_ch_record(C#cr{unacked_messages = Remaining}), - noreply(State #q { mixed_state = MS }); + store_ch_record(C#cr{unacked_messages = Remaining}); _ -> - record_pending_acks(Txn, ChPid, MsgIds), - noreply(State) - end + record_pending_acks(Txn, ChPid, MsgIds) + end, + noreply(State) end; handle_cast({rollback, Txn}, State) -> - noreply(rollback_transaction(Txn, State)); + ok = rollback_work(Txn, qname(State)), + erase_tx(Txn), + noreply(State); + +handle_cast({redeliver, Messages}, State) -> + noreply(deliver_or_enqueue_n(Messages, State)); handle_cast({requeue, MsgIds, ChPid}, State) -> case lookup_ch(ChPid) of @@ -792,9 +765,10 @@ handle_cast({requeue, MsgIds, ChPid}, State) -> [ChPid]), noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, NewUAM} = collect_messages(MsgIds, UAM), + {Messages, NewUAM} = collect_messages(MsgIds, UAM), store_ch_record(C#cr{unacked_messages = NewUAM}), - noreply(deliver_or_requeue_n(MsgWithAcks, State)) + noreply(deliver_or_enqueue_n( + [{Message, true} || Message <- Messages], State)) end; handle_cast({unblock, ChPid}, State) -> @@ -823,22 +797,7 @@ handle_cast({limit, ChPid, LimiterPid}, State) -> end, NewLimited = Limited andalso LimiterPid =/= undefined, C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> - PendingMessages = - lists:flatten([Pending || #tx { pending_messages = Pending} - <- all_tx_record()]), - {ok, MS1} = (case Mode of - disk -> fun rabbit_mixed_queue:to_disk_only_mode/2; - mixed -> fun rabbit_mixed_queue:to_mixed_mode/2 - end)(PendingMessages, MS), - noreply(State #q { mixed_state = MS1 }); - -handle_cast(report_memory, State) -> - %% deliberately don't call noreply/2 as we don't want to restart the timer - %% by unsetting the timer, we force a report on the next normal message - {noreply, State #q { memory_report_timer = undefined }, hibernate}. + end)). handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> @@ -859,10 +818,3 @@ handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> handle_info(Info, State) -> ?LOGDEBUG("Info in queue: ~p~n", [Info]), {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q { mixed_state = MS }) -> - MS1 = rabbit_mixed_queue:maybe_prefetch(MS), - State1 = - stop_memory_timer(report_memory(true, State #q { mixed_state = MS1 })), - %% don't call noreply/1 as that'll restart the memory_report_timer - {hibernate, State1}. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 8adb608f..4033aaaf 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -33,8 +33,8 @@ -include("rabbit.hrl"). -include("rabbit_framing.hrl"). --export([publish/1, message/4, message/5, message/6, delivery/4]). --export([properties/1, publish/4, publish/7]). +-export([publish/1, message/4, properties/1, delivery/4]). +-export([publish/4, publish/7]). -export([build_content/2, from_content/1]). %%---------------------------------------------------------------------------- @@ -48,10 +48,6 @@ -spec(delivery/4 :: (bool(), bool(), maybe(txn()), message()) -> delivery()). -spec(message/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> message()). --spec(message/5 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid()) -> message()). --spec(message/6 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid(), bool()) -> message()). -spec(properties/1 :: (properties_input()) -> amqp_properties()). -spec(publish/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> publish_result()). @@ -95,18 +91,11 @@ from_content(Content) -> {Props, list_to_binary(lists:reverse(FragmentsRev))}. message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, rabbit_guid:guid()). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, false). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, IsPersistent) -> Properties = properties(RawProperties), #basic_message{exchange_name = ExchangeName, routing_key = RoutingKeyBin, content = build_content(Properties, BodyBin), - guid = MsgId, - is_persistent = IsPersistent}. + persistent_key = none}. properties(P = #'P_basic'{}) -> P; diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 397659c1..16b7c938 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -317,11 +317,14 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, %% We decode the content's properties here because we're almost %% certain to want to look at delivery-mode and priority. DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), + PersistentKey = case is_message_persistent(DecodedContent) of + true -> rabbit_guid:guid(); + false -> none + end, Message = #basic_message{exchange_name = ExchangeName, routing_key = RoutingKey, content = DecodedContent, - guid = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent)}, + persistent_key = PersistentKey}, {RoutingRes, DeliveredQPids} = rabbit_exchange:publish( Exchange, diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 99bbb742..37e4d189 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,9 +137,6 @@ Available commands: list_bindings [-p ] list_connections [ ...] - pin_queue_to_disk - unpin_queue_from_disk - Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -155,8 +152,8 @@ virtual host parameter for which to display results. The default value is \"/\". must be a member of the list [name, durable, auto_delete, arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, -messages, acks_uncommitted, consumers, transactions, memory, mode]. The default -is to display name and (number of) messages. +messages, acks_uncommitted, consumers, transactions, memory]. The default is + to display name and (number of) messages. must be a member of the list [name, type, durable, auto_delete, arguments]. The default is to display name and type. @@ -169,9 +166,6 @@ peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. -pin_queue_to_disk will force a queue to be in disk mode. -unpin_queue_from_disk will permit a queue that has been pinned to disk mode -to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -286,18 +280,6 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). -action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> - Inform("Pinning queue ~p in vhost ~p to disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), true]); - -action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> - Inform("Unpinning queue ~p in vhost ~p from disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), false]); - action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl deleted file mode 100644 index 5940f5ad..00000000 --- a/src/rabbit_disk_queue.erl +++ /dev/null @@ -1,1973 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_disk_queue). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([handle_pre_hibernate/1]). - --export([publish/3, deliver/1, phantom_deliver/1, ack/2, - tx_publish/1, tx_commit/3, tx_cancel/1, - requeue/2, purge/1, delete_queue/1, - delete_non_durable_queues/1, auto_ack_next_message/1, - requeue_next_n/2, length/1, foldl/3, prefetch/1 - ]). - --export([filesync/0, cache_info/0]). - --export([stop/0, stop_and_obliterate/0, report_memory/0, - set_mode/1, to_disk_only_mode/0, to_ram_disk_mode/0]). - --include("rabbit.hrl"). - --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_TRANSIENT, 255). --define(WRITE_OK_PERSISTENT, 254). --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(MSG_LOC_NAME, rabbit_disk_queue_msg_location). --define(FILE_SUMMARY_ETS_NAME, rabbit_disk_queue_file_summary). --define(SEQUENCE_ETS_NAME, rabbit_disk_queue_sequences). --define(CACHE_ETS_NAME, rabbit_disk_queue_cache). --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). --define(FILE_EXTENSION_DETS, ".dets"). --define(FILE_PACKING_ADJUSTMENT, (1 + (2* (?INTEGER_SIZE_BYTES)))). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds --define(BATCH_SIZE, 10000). --define(CACHE_MAX_SIZE, 10485760). - --define(SERVER, ?MODULE). - --define(MAX_READ_FILE_HANDLES, 256). --define(FILE_SIZE_LIMIT, (256*1024*1024)). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(dqstate, - {msg_location_dets, %% where are messages? - msg_location_ets, %% as above, but for ets version - operation_mode, %% ram_disk | disk_only - file_summary, %% what's in the files? - sequences, %% next read and write for each q - current_file_num, %% current file name as number - current_file_name, %% current file name - current_file_handle, %% current file handle - current_offset, %% current offset within current file - current_dirty, %% has the current file been written to - %% since the last fsync? - file_size_limit, %% how big can our files get? - read_file_handles, %% file handles for reading (LRU) - read_file_handles_limit, %% how many file handles can we open? - on_sync_txns, %% list of commiters to run on sync (reversed) - commit_timer_ref, %% TRef for our interval timer - last_sync_offset, %% current_offset at the last time we sync'd - message_cache, %% ets message cache - memory_report_timer, %% TRef for the memory report timer - wordsize, %% bytes in a word on this platform - mnesia_bytes_per_record, %% bytes per record in mnesia in ram_disk mode - ets_bytes_per_record %% bytes per record in msg_location_ets - }). - -%% The components: -%% -%% MsgLocation: this is a (d)ets table which contains: -%% {MsgId, RefCount, File, Offset, TotalSize, IsPersistent} -%% FileSummary: this is an ets table which contains: -%% {File, ValidTotalSize, ContiguousTop, Left, Right} -%% Sequences: this is an ets table which contains: -%% {Q, ReadSeqId, WriteSeqId} -%% rabbit_disk_queue: this is an mnesia table which contains: -%% #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, -%% is_delivered = IsDelivered, -%% msg_id = MsgId -%% } -%% - -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the MsgLocation table); how much useful data is in each file and -%% which files are on the left and right of each other. This is the -%% purpose of the FileSummary table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file, whilst ContiguousTop contains the amount of -%% valid data right at the start of each file. These are needed for -%% garbage collection. -%% -%% On publish, we write the message to disk, record the changes to -%% FileSummary and MsgLocation, and, should this be either a plain -%% publish, or followed by a tx_commit, we record the message in the -%% mnesia table. Sequences exists to enforce ordering of messages as -%% they are published within a queue. -%% -%% On delivery, we read the next message to be read from disk -%% (according to the ReadSeqId for the given queue) and record in the -%% mnesia table that the message has been delivered. -%% -%% On ack we remove the relevant entry from MsgLocation, update -%% FileSummary and delete from the mnesia table. -%% -%% In order to avoid extra mnesia searching, we return the SeqId -%% during delivery which must be returned in ack - it is not possible -%% to ack from MsgId alone. - -%% As messages are ack'd, holes develop in the files. When we discover -%% that either a file is now empty or that it can be combined with the -%% useful data in either its left or right file, we compact the two -%% files together. This keeps disk utilisation high and aids -%% performance. -%% -%% Given the compaction between two files, the left file is considered -%% the ultimate destination for the good data in the right file. If -%% necessary, the good data in the left file which is fragmented -%% throughout the file is written out to a temporary file, then read -%% back in to form a contiguous chunk of good data at the start of the -%% left file. Thus the left file is garbage collected and -%% compacted. Then the good data from the right file is copied onto -%% the end of the left file. MsgLocation and FileSummary tables are -%% updated. -%% -%% On startup, we scan the files we discover, dealing with the -%% possibilites of a crash have occured during a compaction (this -%% consists of tidyup - the compaction is deliberately designed such -%% that data is duplicated on disk rather than risking it being lost), -%% and rebuild the dets and ets tables (MsgLocation, FileSummary, -%% Sequences) from what we find. We ensure that the messages we have -%% discovered on disk match exactly with the messages recorded in the -%% mnesia table. - -%% MsgLocation is deliberately a dets table, and the mnesia table is -%% set to be a disk_only_table in order to ensure that we are not RAM -%% constrained. However, for performance reasons, it is possible to -%% call to_ram_disk_mode/0 which will alter the mnesia table to -%% disc_copies and convert MsgLocation to an ets table. This results -%% in a massive performance improvement, at the expense of greater RAM -%% usage. The idea is that when memory gets tight, we switch to -%% disk_only mode but otherwise try to run in ram_disk mode. - -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten (yes, this is -%% the data the size of which is tracked by the ContiguousTop -%% variable. Judicious use of a mirror is required). -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). - -%% ---- SPECS ---- - --ifdef(use_specs). - --type(seq_id() :: non_neg_integer()). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(publish/3 :: (queue_name(), message(), bool()) -> 'ok'). --spec(deliver/1 :: (queue_name()) -> - ('empty' | {message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}, non_neg_integer()})). --spec(phantom_deliver/1 :: (queue_name()) -> - ( 'empty' | {msg_id(), bool(), bool(), {msg_id(), seq_id()}, - non_neg_integer()})). --spec(prefetch/1 :: (queue_name()) -> 'ok'). --spec(ack/2 :: (queue_name(), [{msg_id(), seq_id()}]) -> 'ok'). --spec(auto_ack_next_message/1 :: (queue_name()) -> 'ok'). --spec(tx_publish/1 :: (message()) -> 'ok'). --spec(tx_commit/3 :: (queue_name(), [{msg_id(), bool()}], - [{msg_id(), seq_id()}]) -> 'ok'). --spec(tx_cancel/1 :: ([msg_id()]) -> 'ok'). --spec(requeue/2 :: (queue_name(), [{{msg_id(), seq_id()}, bool()}]) -> 'ok'). --spec(requeue_next_n/2 :: (queue_name(), non_neg_integer()) -> 'ok'). --spec(purge/1 :: (queue_name()) -> non_neg_integer()). --spec(delete_queue/1 :: (queue_name()) -> 'ok'). --spec(delete_non_durable_queues/1 :: (set()) -> 'ok'). --spec(length/1 :: (queue_name()) -> non_neg_integer()). --spec(foldl/3 :: (fun (({message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}}, A) -> - A), A, queue_name()) -> A). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_obliterate/0 :: () -> 'ok'). --spec(to_disk_only_mode/0 :: () -> 'ok'). --spec(to_ram_disk_mode/0 :: () -> 'ok'). --spec(filesync/0 :: () -> 'ok'). --spec(cache_info/0 :: () -> [{atom(), term()}]). --spec(report_memory/0 :: () -> 'ok'). --spec(set_mode/1 :: ('disk' | 'mixed') -> 'ok'). - --endif. - -%% ---- PUBLIC API ---- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, - [?FILE_SIZE_LIMIT, ?MAX_READ_FILE_HANDLES], []). - -publish(Q, Message = #basic_message {}, IsDelivered) -> - gen_server2:cast(?SERVER, {publish, Q, Message, IsDelivered}). - -deliver(Q) -> - gen_server2:call(?SERVER, {deliver, Q}, infinity). - -phantom_deliver(Q) -> - gen_server2:call(?SERVER, {phantom_deliver, Q}, infinity). - -prefetch(Q) -> - gen_server2:pcast(?SERVER, -1, {prefetch, Q, self()}). - -ack(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {ack, Q, MsgSeqIds}). - -auto_ack_next_message(Q) -> - gen_server2:cast(?SERVER, {auto_ack_next_message, Q}). - -tx_publish(Message = #basic_message {}) -> - gen_server2:cast(?SERVER, {tx_publish, Message}). - -tx_commit(Q, PubMsgIds, AckSeqIds) - when is_list(PubMsgIds) andalso is_list(AckSeqIds) -> - gen_server2:call(?SERVER, {tx_commit, Q, PubMsgIds, AckSeqIds}, infinity). - -tx_cancel(MsgIds) when is_list(MsgIds) -> - gen_server2:cast(?SERVER, {tx_cancel, MsgIds}). - -requeue(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {requeue, Q, MsgSeqIds}). - -requeue_next_n(Q, N) when is_integer(N) -> - gen_server2:cast(?SERVER, {requeue_next_n, Q, N}). - -purge(Q) -> - gen_server2:call(?SERVER, {purge, Q}, infinity). - -delete_queue(Q) -> - gen_server2:cast(?SERVER, {delete_queue, Q}). - -delete_non_durable_queues(DurableQueues) -> - gen_server2:call(?SERVER, {delete_non_durable_queues, DurableQueues}, - infinity). - -length(Q) -> - gen_server2:call(?SERVER, {length, Q}, infinity). - -foldl(Fun, Init, Acc) -> - gen_server2:call(?SERVER, {foldl, Fun, Init, Acc}, infinity). - -stop() -> - gen_server2:call(?SERVER, stop, infinity). - -stop_and_obliterate() -> - gen_server2:call(?SERVER, stop_vaporise, infinity). - -to_disk_only_mode() -> - gen_server2:pcall(?SERVER, 9, to_disk_only_mode, infinity). - -to_ram_disk_mode() -> - gen_server2:pcall(?SERVER, 9, to_ram_disk_mode, infinity). - -filesync() -> - gen_server2:pcast(?SERVER, 10, filesync). - -cache_info() -> - gen_server2:call(?SERVER, cache_info, infinity). - -report_memory() -> - gen_server2:cast(?SERVER, report_memory). - -set_mode(Mode) -> - gen_server2:pcast(?SERVER, 10, {set_mode, Mode}). - -%% ---- GEN-SERVER INTERNAL API ---- - -init([FileSizeLimit, ReadFileHandlesLimit]) -> - %% If the gen_server is part of a supervision tree and is ordered - %% by its supervisor to terminate, terminate will be called with - %% Reason=shutdown if the following conditions apply: - %% * the gen_server has been set to trap exit signals, and - %% * the shutdown strategy as defined in the supervisor's - %% child specification is an integer timeout value, not - %% brutal_kill. - %% Otherwise, the gen_server will be immediately terminated. - process_flag(trap_exit, true), - ok = rabbit_queue_mode_manager:register - (self(), true, rabbit_disk_queue, set_mode, []), - Node = node(), - ok = - case mnesia:change_table_copy_type(rabbit_disk_queue, Node, - disc_copies) of - {atomic, ok} -> ok; - {aborted, {already_exists, rabbit_disk_queue, Node, - disc_copies}} -> ok; - E -> E - end, - ok = filelib:ensure_dir(form_filename("nothing")), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - {ok, MsgLocationDets} = - dets:open_file(?MSG_LOC_NAME, - [{file, form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)}, - {min_no_slots, 1024*1024}, - %% man says this should be <= 32M. But it works... - {max_no_slots, 30*1024*1024}, - {type, set} - ]), - - %% it would be better to have this as private, but dets:from_ets/2 - %% seems to blow up if it is set private - MsgLocationEts = ets:new(?MSG_LOC_NAME, [set, protected]), - - TRef = start_memory_timer(), - - InitName = "0" ++ ?FILE_EXTENSION, - State = - #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - operation_mode = ram_disk, - file_summary = ets:new(?FILE_SUMMARY_ETS_NAME, - [set, private]), - sequences = ets:new(?SEQUENCE_ETS_NAME, - [set, private]), - current_file_num = 0, - current_file_name = InitName, - current_file_handle = undefined, - current_offset = 0, - current_dirty = false, - file_size_limit = FileSizeLimit, - read_file_handles = {dict:new(), gb_trees:empty()}, - read_file_handles_limit = ReadFileHandlesLimit, - on_sync_txns = [], - commit_timer_ref = undefined, - last_sync_offset = 0, - message_cache = ets:new(?CACHE_ETS_NAME, - [set, private]), - memory_report_timer = TRef, - wordsize = erlang:system_info(wordsize), - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined - }, - {ok, State1 = #dqstate { current_file_name = CurrentName, - current_offset = Offset } } = - load_from_disk(State), - Path = form_filename(CurrentName), - Exists = case file:read_file_info(Path) of - {error,enoent} -> false; - {ok, _} -> true - end, - %% read is only needed so that we can seek - {ok, FileHdl} = file:open(Path, [read, write, raw, binary, delayed_write]), - case Exists of - true -> {ok, Offset} = file:position(FileHdl, {bof, Offset}); - false -> %% new file, so preallocate - ok = preallocate(FileHdl, FileSizeLimit, Offset) - end, - State2 = State1 #dqstate { current_file_handle = FileHdl }, - %% by reporting a memory use of 0, we guarantee the manager will - %% grant us to ram_disk mode. We have to start in ram_disk mode - %% because we can't find values for mnesia_bytes_per_record or - %% ets_bytes_per_record otherwise. - ok = rabbit_queue_mode_manager:report_memory(self(), 0, false), - ok = report_memory(false, State2), - {ok, State2, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, true, false, true, State), - reply(Result, State1); -handle_call({phantom_deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, false, false, true, State), - reply(Result, State1); -handle_call({tx_commit, Q, PubMsgIds, AckSeqIds}, From, State) -> - State1 = - internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, State), - noreply(State1); -handle_call({purge, Q}, _From, State) -> - {ok, Count, State1} = internal_purge(Q, State), - reply(Count, State1); -handle_call({length, Q}, _From, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - reply(WriteSeqId - ReadSeqId, State); -handle_call({foldl, Fun, Init, Q}, _From, State) -> - {ok, Result, State1} = internal_foldl(Q, Fun, Init, State), - reply(Result, State1); -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; %% gen_server now calls terminate -handle_call(stop_vaporise, _From, State) -> - State1 = #dqstate { file_summary = FileSummary, - sequences = Sequences } = - shutdown(State), %% tidy up file handles early - {atomic, ok} = mnesia:clear_table(rabbit_disk_queue), - true = ets:delete(FileSummary), - true = ets:delete(Sequences), - lists:foreach(fun file:delete/1, filelib:wildcard(form_filename("*"))), - {stop, normal, ok, - State1 #dqstate { current_file_handle = undefined, - read_file_handles = {dict:new(), gb_trees:empty()}}}; - %% gen_server now calls terminate, which then calls shutdown -handle_call(to_disk_only_mode, _From, State) -> - reply(ok, to_disk_only_mode(State)); -handle_call(to_ram_disk_mode, _From, State) -> - reply(ok, to_ram_disk_mode(State)); -handle_call({delete_non_durable_queues, DurableQueues}, _From, State) -> - {ok, State1} = internal_delete_non_durable_queues(DurableQueues, State), - reply(ok, State1); -handle_call(cache_info, _From, State = #dqstate { message_cache = Cache }) -> - reply(ets:info(Cache), State). - -handle_cast({publish, Q, Message, IsDelivered}, State) -> - {ok, _MsgSeqId, State1} = internal_publish(Q, Message, IsDelivered, State), - noreply(State1); -handle_cast({ack, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_ack(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({auto_ack_next_message, Q}, State) -> - {ok, State1} = internal_auto_ack(Q, State), - noreply(State1); -handle_cast({tx_publish, Message}, State) -> - {ok, State1} = internal_tx_publish(Message, State), - noreply(State1); -handle_cast({tx_cancel, MsgIds}, State) -> - {ok, State1} = internal_tx_cancel(MsgIds, State), - noreply(State1); -handle_cast({requeue, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_requeue(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({requeue_next_n, Q, N}, State) -> - {ok, State1} = internal_requeue_next_n(Q, N, State), - noreply(State1); -handle_cast({delete_queue, Q}, State) -> - {ok, State1} = internal_delete_queue(Q, State), - noreply(State1); -handle_cast(filesync, State) -> - noreply(sync_current_file_handle(State)); -handle_cast({set_mode, Mode}, State) -> - noreply((case Mode of - disk -> fun to_disk_only_mode/1; - mixed -> fun to_ram_disk_mode/1 - end)(State)); -handle_cast(report_memory, State) -> - %% call noreply1/2, not noreply/1/2, as we don't want to restart the - %% memory_report_timer - %% by unsetting the timer, we force a report on the next normal message - noreply1(State #dqstate { memory_report_timer = undefined }); -handle_cast({prefetch, Q, From}, State) -> - {ok, Result, State1} = internal_deliver(Q, true, true, false, State), - Cont = rabbit_misc:with_exit_handler( - fun () -> false end, - fun () -> - ok = rabbit_queue_prefetcher:publish(From, Result), - true - end), - State3 = - case Cont of - true -> - case internal_deliver(Q, false, false, true, State1) of - {ok, empty, State2} -> State2; - {ok, {_MsgId, _IsPersistent, _Delivered, _MsgSeqId, _Rem}, - State2} -> State2 - end; - false -> State1 - end, - noreply(State3). - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(timeout, State) -> - %% must have commit_timer set, so timeout was 0, and we're not hibernating - noreply(sync_current_file_handle(State)). - -handle_pre_hibernate(State) -> - %% don't use noreply/1 or noreply1/1 as they'll restart the memory timer - ok = report_memory(true, State), - {hibernate, stop_memory_timer(State)}. - -terminate(_Reason, State) -> - shutdown(State). - -shutdown(State = #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - current_file_handle = FileHdl, - read_file_handles = {ReadHdls, _ReadHdlsAge} - }) -> - %% deliberately ignoring return codes here - State1 = stop_commit_timer(stop_memory_timer(State)), - dets:close(MsgLocationDets), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - true = ets:delete_all_objects(MsgLocationEts), - case FileHdl of - undefined -> ok; - _ -> sync_current_file_handle(State), - file:close(FileHdl) - end, - dict:fold(fun (_File, Hdl, _Acc) -> - file:close(Hdl) - end, ok, ReadHdls), - State1 #dqstate { current_file_handle = undefined, - current_dirty = false, - read_file_handles = {dict:new(), gb_trees:empty()}, - memory_report_timer = undefined - }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%% ---- UTILITY FUNCTIONS ---- - -stop_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #dqstate { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { memory_report_timer = undefined }. - -start_memory_timer() -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_disk_queue, report_memory, []), - TRef. - -start_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - ok = report_memory(false, State), - State #dqstate { memory_report_timer = start_memory_timer() }; -start_memory_timer(State) -> - State. - -report_memory(Hibernating, State) -> - Bytes = memory_use(State), - rabbit_queue_mode_manager:report_memory(self(), trunc(2.5 * Bytes), - Hibernating). - -memory_use(#dqstate { operation_mode = ram_disk, - file_summary = FileSummary, - sequences = Sequences, - msg_location_ets = MsgLocationEts, - message_cache = Cache, - wordsize = WordSize - }) -> - WordSize * (mnesia:table_info(rabbit_disk_queue, memory) + - ets:info(MsgLocationEts, memory) + - ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory)); -memory_use(#dqstate { operation_mode = disk_only, - file_summary = FileSummary, - sequences = Sequences, - msg_location_dets = MsgLocationDets, - message_cache = Cache, - wordsize = WordSize, - mnesia_bytes_per_record = MnesiaBytesPerRecord, - ets_bytes_per_record = EtsBytesPerRecord }) -> - MnesiaSizeEstimate = - mnesia:table_info(rabbit_disk_queue, size) * MnesiaBytesPerRecord, - MsgLocationSizeEstimate = - dets:info(MsgLocationDets, size) * EtsBytesPerRecord, - (WordSize * (ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory))) + - rabbit_misc:ceil(MnesiaSizeEstimate) + - rabbit_misc:ceil(MsgLocationSizeEstimate). - -to_disk_only_mode(State = #dqstate { operation_mode = disk_only }) -> - State; -to_disk_only_mode(State = #dqstate { operation_mode = ram_disk, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - wordsize = WordSize }) -> - rabbit_log:info("Converting disk queue to disk only mode~n", []), - MnesiaMemoryBytes = WordSize * mnesia:table_info(rabbit_disk_queue, memory), - MnesiaSize = lists:max([1, mnesia:table_info(rabbit_disk_queue, size)]), - EtsMemoryBytes = WordSize * ets:info(MsgLocationEts, memory), - EtsSize = lists:max([1, ets:info(MsgLocationEts, size)]), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_only_copies), - ok = dets:from_ets(MsgLocationDets, MsgLocationEts), - true = ets:delete_all_objects(MsgLocationEts), - garbage_collect(), - State #dqstate { operation_mode = disk_only, - mnesia_bytes_per_record = MnesiaMemoryBytes / MnesiaSize, - ets_bytes_per_record = EtsMemoryBytes / EtsSize }. - -to_ram_disk_mode(State = #dqstate { operation_mode = ram_disk }) -> - State; -to_ram_disk_mode(State = #dqstate { operation_mode = disk_only, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts }) -> - rabbit_log:info("Converting disk queue to ram disk mode~n", []), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_copies), - true = ets:from_dets(MsgLocationEts, MsgLocationDets), - ok = dets:delete_all_objects(MsgLocationDets), - garbage_collect(), - State #dqstate { operation_mode = ram_disk, - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined }. - -noreply(NewState) -> - noreply1(start_memory_timer(NewState)). - -noreply1(NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {noreply, NewState, hibernate}; -noreply1(NewState = #dqstate { commit_timer_ref = undefined }) -> - {noreply, start_commit_timer(NewState), 0}; -noreply1(NewState = #dqstate { on_sync_txns = [] }) -> - {noreply, stop_commit_timer(NewState), hibernate}; -noreply1(NewState) -> - {noreply, NewState, 0}. - -reply(Reply, NewState) -> - reply1(Reply, start_memory_timer(NewState)). - -reply1(Reply, NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {reply, Reply, NewState, hibernate}; -reply1(Reply, NewState = #dqstate { commit_timer_ref = undefined }) -> - {reply, Reply, start_commit_timer(NewState), 0}; -reply1(Reply, NewState = #dqstate { on_sync_txns = [] }) -> - {reply, Reply, stop_commit_timer(NewState), hibernate}; -reply1(Reply, NewState) -> - {reply, Reply, NewState, 0}. - -form_filename(Name) -> - filename:join(base_directory(), Name). - -base_directory() -> - filename:join(mnesia:system_info(directory), "rabbit_disk_queue/"). - -dets_ets_lookup(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - dets:lookup(MsgLocationDets, Key); -dets_ets_lookup(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - ets:lookup(MsgLocationEts, Key). - -dets_ets_delete(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - ok = dets:delete(MsgLocationDets, Key); -dets_ets_delete(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - true = ets:delete(MsgLocationEts, Key), - ok. - -dets_ets_insert(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - ok = dets:insert(MsgLocationDets, Obj); -dets_ets_insert(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert(MsgLocationEts, Obj), - ok. - -dets_ets_insert_new(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - true = dets:insert_new(MsgLocationDets, Obj); -dets_ets_insert_new(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert_new(MsgLocationEts, Obj). - -dets_ets_match_object(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - dets:match_object(MsgLocationDets, Obj); -dets_ets_match_object(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - ets:match_object(MsgLocationEts, Obj). - -get_read_handle(File, Offset, State = - #dqstate { read_file_handles = {ReadHdls, ReadHdlsAge}, - read_file_handles_limit = ReadFileHandlesLimit, - current_file_name = CurName, - current_dirty = IsDirty, - last_sync_offset = SyncOffset - }) -> - State1 = if CurName =:= File andalso IsDirty andalso Offset >= SyncOffset -> - sync_current_file_handle(State); - true -> State - end, - Now = now(), - {FileHdl, ReadHdls1, ReadHdlsAge1} = - case dict:find(File, ReadHdls) of - error -> - {ok, Hdl} = file:open(form_filename(File), - [read, raw, binary, - read_ahead]), - case dict:size(ReadHdls) < ReadFileHandlesLimit of - true -> - {Hdl, ReadHdls, ReadHdlsAge}; - _False -> - {Then, OldFile, ReadHdlsAge2} = - gb_trees:take_smallest(ReadHdlsAge), - {ok, {OldHdl, Then}} = - dict:find(OldFile, ReadHdls), - ok = file:close(OldHdl), - {Hdl, dict:erase(OldFile, ReadHdls), ReadHdlsAge2} - end; - {ok, {Hdl, Then}} -> - {Hdl, ReadHdls, gb_trees:delete(Then, ReadHdlsAge)} - end, - ReadHdls2 = dict:store(File, {FileHdl, Now}, ReadHdls1), - ReadHdlsAge3 = gb_trees:enter(Now, File, ReadHdlsAge1), - {FileHdl, - State1 #dqstate { read_file_handles = {ReadHdls2, ReadHdlsAge3} }}. - -sequence_lookup(Sequences, Q) -> - case ets:lookup(Sequences, Q) of - [] -> - {0, 0}; - [{Q, ReadSeqId, WriteSeqId}] -> - {ReadSeqId, WriteSeqId} - end. - -start_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, filesync, []), - State #dqstate { commit_timer_ref = TRef }. - -stop_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - State; -stop_commit_timer(State = #dqstate { commit_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { commit_timer_ref = undefined }. - -sync_current_file_handle(State = #dqstate { current_dirty = false, - on_sync_txns = [] }) -> - State; -sync_current_file_handle(State = #dqstate { current_file_handle = CurHdl, - current_dirty = IsDirty, - current_offset = CurOffset, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - SyncOffset1 = case IsDirty of - true -> ok = file:sync(CurHdl), - CurOffset; - false -> SyncOffset - end, - State1 = lists:foldl(fun internal_do_tx_commit/2, State, lists:reverse(Txns)), - State1 #dqstate { current_dirty = false, on_sync_txns = [], - last_sync_offset = SyncOffset1 }. - -msg_to_bin(Msg = #basic_message { content = Content }) -> - ClearedContent = rabbit_binary_parser:clear_decoded_content(Content), - term_to_binary(Msg #basic_message { content = ClearedContent }). - -bin_to_msg(MsgBin) -> - binary_to_term(MsgBin). - -remove_cache_entry(MsgId, #dqstate { message_cache = Cache }) -> - true = ets:delete(Cache, MsgId), - ok. - -fetch_and_increment_cache(MsgId, #dqstate { message_cache = Cache }) -> - case ets:lookup(Cache, MsgId) of - [] -> - not_found; - [{MsgId, Message, MsgSize, _RefCount}] -> - NewRefCount = ets:update_counter(Cache, MsgId, {4, 1}), - {Message, MsgSize, NewRefCount} - end. - -decrement_cache(MsgId, #dqstate { message_cache = Cache }) -> - true = try case ets:update_counter(Cache, MsgId, {4, -1}) of - N when N =< 0 -> true = ets:delete(Cache, MsgId); - _N -> true - end - catch error:badarg -> - %% MsgId is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message in mixed queue) - true - end, - ok. - -insert_into_cache(Message = #basic_message { guid = MsgId }, MsgSize, - Forced, State = #dqstate { message_cache = Cache }) -> - case cache_is_full(State) of - true -> ok; - false -> Count = case Forced of - true -> 0; - false -> 1 - end, - true = ets:insert_new(Cache, {MsgId, Message, - MsgSize, Count}), - ok - end. - -cache_is_full(#dqstate { message_cache = Cache }) -> - ets:info(Cache, memory) > ?CACHE_MAX_SIZE. - -%% ---- INTERNAL RAW FUNCTIONS ---- - -internal_deliver(Q, ReadMsg, FakeDeliver, Advance, - State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, empty, State}; - {ReadSeqId, WriteSeqId} when WriteSeqId >= ReadSeqId -> - Remaining = WriteSeqId - ReadSeqId - 1, - {ok, Result, State1} = - internal_read_message( - Q, ReadSeqId, ReadMsg, FakeDeliver, false, State), - true = case Advance of - true -> ets:insert(Sequences, - {Q, ReadSeqId+1, WriteSeqId}); - false -> true - end, - {ok, - case Result of - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}} -> - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}, - Remaining}; - {Message, BodySize, Delivered, {MsgId, ReadSeqId}} -> - {Message, BodySize, Delivered, {MsgId, ReadSeqId}, - Remaining} - end, State1} - end. - -internal_foldl(Q, Fun, Init, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - internal_foldl(Q, WriteSeqId, Fun, State, Init, ReadSeqId). - -internal_foldl(_Q, SeqId, _Fun, State, Acc, SeqId) -> - {ok, Acc, State}; -internal_foldl(Q, WriteSeqId, Fun, State, Acc, ReadSeqId) -> - {ok, MsgStuff, State1} - = internal_read_message(Q, ReadSeqId, true, true, false, State), - Acc1 = Fun(MsgStuff, Acc), - internal_foldl(Q, WriteSeqId, Fun, State1, Acc1, ReadSeqId + 1). - -internal_read_message(Q, ReadSeqId, ReadMsg, FakeDeliver, ForceInCache, State) -> - [Obj = - #dq_msg_loc {is_delivered = Delivered, msg_id = MsgId}] = - mnesia:dirty_read(rabbit_disk_queue, {Q, ReadSeqId}), - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - ok = - if FakeDeliver orelse Delivered -> ok; - true -> - mnesia:dirty_write(rabbit_disk_queue, - Obj #dq_msg_loc {is_delivered = true}) - end, - case ReadMsg of - true -> - case fetch_and_increment_cache(MsgId, State) of - not_found -> - {FileHdl, State1} = get_read_handle(File, Offset, State), - {ok, {MsgBody, IsPersistent, BodySize}} = - read_message_at_offset(FileHdl, Offset, TotalSize), - #basic_message { is_persistent=IsPersistent, guid=MsgId } = - Message = bin_to_msg(MsgBody), - ok = if RefCount > 1 orelse ForceInCache -> - insert_into_cache - (Message, BodySize, ForceInCache, State1); - true -> ok - %% it's not in the cache and we only - %% have 1 queue with the message. So - %% don't bother putting it in the - %% cache. - end, - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State1}; - {Message, BodySize, _RefCount} -> - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State} - end; - false -> - {ok, {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}}, State} - end. - -internal_auto_ack(Q, State) -> - case internal_deliver(Q, false, false, true, State) of - {ok, empty, State1} -> {ok, State1}; - {ok, {_MsgId, _IsPersistent, _Delivered, MsgSeqId, _Remaining}, - State1} -> - remove_messages(Q, [MsgSeqId], true, State1) - end. - -internal_ack(Q, MsgSeqIds, State) -> - remove_messages(Q, MsgSeqIds, true, State). - -%% Q is only needed if MnesiaDelete /= false -remove_messages(Q, MsgSeqIds, MnesiaDelete, - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - Files = - lists:foldl( - fun ({MsgId, SeqId}, Files1) -> - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - Files2 = - case RefCount of - 1 -> - ok = dets_ets_delete(State, MsgId), - ok = remove_cache_entry(MsgId, State), - [{File, ValidTotalSize, ContiguousTop, - Left, Right}] = ets:lookup(FileSummary, File), - ContiguousTop1 = - lists:min([ContiguousTop, Offset]), - true = - ets:insert(FileSummary, - {File, (ValidTotalSize-TotalSize- - ?FILE_PACKING_ADJUSTMENT), - ContiguousTop1, Left, Right}), - if CurName =:= File -> Files1; - true -> sets:add_element(File, Files1) - end; - _ when 1 < RefCount -> - ok = decrement_cache(MsgId, State), - ok = dets_ets_insert( - State, {MsgId, RefCount - 1, File, Offset, - TotalSize, IsPersistent}), - Files1 - end, - ok = case MnesiaDelete of - true -> mnesia:dirty_delete(rabbit_disk_queue, - {Q, SeqId}); - txn -> mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write); - _ -> ok - end, - Files2 - end, sets:new(), MsgSeqIds), - State1 = compact(Files, State), - {ok, State1}. - -internal_tx_publish(Message = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, - State = #dqstate { current_file_handle = CurHdl, - current_file_name = CurName, - current_offset = CurOffset, - file_summary = FileSummary - }) -> - case dets_ets_lookup(State, MsgId) of - [] -> - %% New message, lots to do - {ok, TotalSize} = append_message(CurHdl, MsgId, msg_to_bin(Message), - IsPersistent), - true = dets_ets_insert_new - (State, {MsgId, 1, CurName, - CurOffset, TotalSize, IsPersistent}), - [{CurName, ValidTotalSize, ContiguousTop, Left, undefined}] = - ets:lookup(FileSummary, CurName), - ValidTotalSize1 = ValidTotalSize + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - ContiguousTop1 = if CurOffset =:= ContiguousTop -> - %% can't be any holes in this file - ValidTotalSize1; - true -> ContiguousTop - end, - true = ets:insert(FileSummary, {CurName, ValidTotalSize1, - ContiguousTop1, Left, undefined}), - NextOffset = CurOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - maybe_roll_to_new_file( - NextOffset, State #dqstate {current_offset = NextOffset, - current_dirty = true}); - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] -> - %% We already know about it, just update counter - ok = dets_ets_insert(State, {MsgId, RefCount + 1, File, - Offset, TotalSize, IsPersistent}), - {ok, State} - end. - -internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, - State = #dqstate { current_file_name = CurFile, - current_dirty = IsDirty, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - NeedsSync = IsDirty andalso - lists:any(fun ({MsgId, _Delivered}) -> - [{MsgId, _RefCount, File, Offset, - _TotalSize, _IsPersistent}] = - dets_ets_lookup(State, MsgId), - File =:= CurFile andalso Offset >= SyncOffset - end, PubMsgIds), - TxnDetails = {Q, PubMsgIds, AckSeqIds, From}, - case NeedsSync of - true -> - Txns1 = [TxnDetails | Txns], - State #dqstate { on_sync_txns = Txns1 }; - false -> - internal_do_tx_commit(TxnDetails, State) - end. - -internal_do_tx_commit({Q, PubMsgIds, AckSeqIds, From}, - State = #dqstate { sequences = Sequences }) -> - {InitReadSeqId, InitWriteSeqId} = sequence_lookup(Sequences, Q), - WriteSeqId = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {ok, WriteSeqId1} = - lists:foldl( - fun ({MsgId, Delivered}, {ok, SeqId}) -> - {mnesia:write( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, - msg_id = MsgId, - is_delivered = Delivered - }, write), - SeqId + 1} - end, {ok, InitWriteSeqId}, PubMsgIds), - WriteSeqId1 - end), - {ok, State1} = remove_messages(Q, AckSeqIds, true, State), - true = case PubMsgIds of - [] -> true; - _ -> ets:insert(Sequences, {Q, InitReadSeqId, WriteSeqId}) - end, - gen_server2:reply(From, ok), - State1. - -internal_publish(Q, Message = #basic_message { guid = MsgId }, - IsDelivered, State) -> - {ok, State1 = #dqstate { sequences = Sequences }} = - internal_tx_publish(Message, State), - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - ok = mnesia:dirty_write(rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, WriteSeqId}, - msg_id = MsgId, - is_delivered = IsDelivered}), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId + 1}), - {ok, {MsgId, WriteSeqId}, State1}. - -internal_tx_cancel(MsgIds, State) -> - %% we don't need seq ids because we're not touching mnesia, - %% because seqids were never assigned - MsgSeqIds = lists:zip(MsgIds, lists:duplicate(erlang:length(MsgIds), - undefined)), - remove_messages(undefined, MsgSeqIds, false, State). - -internal_requeue(_Q, [], State) -> - {ok, State}; -internal_requeue(Q, MsgSeqIds, State = #dqstate { sequences = Sequences }) -> - %% We know that every seq_id in here is less than the ReadSeqId - %% you'll get if you look up this queue in Sequences (i.e. they've - %% already been delivered). We also know that the rows for these - %% messages are still in rabbit_disk_queue (i.e. they've not been - %% ack'd). - - %% Now, it would be nice if we could adjust the sequence ids in - %% rabbit_disk_queue (mnesia) to create a contiguous block and - %% then drop the ReadSeqId for the queue by the corresponding - %% amount. However, this is not safe because there may be other - %% sequence ids which have been sent out as part of deliveries - %% which are not being requeued. As such, moving things about in - %% rabbit_disk_queue _under_ the current ReadSeqId would result in - %% such sequence ids referring to the wrong messages. - - %% Therefore, the only solution is to take these messages, and to - %% reenqueue them at the top of the queue. Usefully, this only - %% affects the Sequences and rabbit_disk_queue structures - there - %% is no need to physically move the messages about on disk, so - %% MsgLocation and FileSummary stay put (which makes further sense - %% as they have no concept of sequence id anyway). - - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - {WriteSeqId1, Q, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foldl(fun requeue_message/2, {WriteSeqId, Q, []}, - MsgSeqIds) - end), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId1}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State}. - -requeue_message({{MsgId, SeqId}, IsDelivered}, {WriteSeqId, Q, Acc}) -> - [Obj = #dq_msg_loc { is_delivered = true, msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, SeqId}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeqId}, - is_delivered = IsDelivered - }, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write), - {WriteSeqId + 1, Q, [MsgId | Acc]}. - -%% move the next N messages from the front of the queue to the back. -internal_requeue_next_n(Q, N, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - if N >= (WriteSeqId - ReadSeqId) -> {ok, State}; - true -> - {ReadSeqIdN, WriteSeqIdN, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - requeue_next_messages(Q, N, ReadSeqId, WriteSeqId, []) - end - ), - true = ets:insert(Sequences, {Q, ReadSeqIdN, WriteSeqIdN}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State} - end. - -requeue_next_messages(_Q, 0, ReadSeq, WriteSeq, Acc) -> - {ReadSeq, WriteSeq, Acc}; -requeue_next_messages(Q, N, ReadSeq, WriteSeq, Acc) -> - [Obj = #dq_msg_loc { msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, ReadSeq}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeq}}, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, ReadSeq}, write), - requeue_next_messages(Q, N - 1, ReadSeq + 1, WriteSeq + 1, [MsgId | Acc]). - -internal_purge(Q, State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, 0, State}; - {ReadSeqId, WriteSeqId} -> - {MsgSeqIds, WriteSeqId} = - rabbit_misc:unfold( - fun (SeqId) when SeqId == WriteSeqId -> false; - (SeqId) -> - [#dq_msg_loc { msg_id = MsgId }] = - mnesia:dirty_read(rabbit_disk_queue, {Q, SeqId}), - {true, {MsgId, SeqId}, SeqId + 1} - end, ReadSeqId), - true = ets:insert(Sequences, {Q, WriteSeqId, WriteSeqId}), - {ok, State1} = remove_messages(Q, MsgSeqIds, true, State), - {ok, WriteSeqId - ReadSeqId, State1} - end. - -internal_delete_queue(Q, State) -> - {ok, _Count, State1 = #dqstate { sequences = Sequences }} = - internal_purge(Q, State), %% remove everything undelivered - true = ets:delete(Sequences, Q), - %% now remove everything already delivered - Objs = mnesia:dirty_match_object( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, '_'}, - msg_id = '_', - is_delivered = '_' - }), - MsgSeqIds = - lists:map( - fun (#dq_msg_loc { queue_and_seq_id = {_Q, SeqId}, - msg_id = MsgId }) -> - {MsgId, SeqId} end, Objs), - remove_messages(Q, MsgSeqIds, true, State1). - -internal_delete_non_durable_queues( - DurableQueues, State = #dqstate { sequences = Sequences }) -> - ets:foldl( - fun ({Q, _Read, _Write}, {ok, State1}) -> - case sets:is_element(Q, DurableQueues) of - true -> {ok, State1}; - false -> internal_delete_queue(Q, State1) - end - end, {ok, State}, Sequences). - -%% ---- ROLLING OVER THE APPEND FILE ---- - -maybe_roll_to_new_file(Offset, - State = #dqstate { file_size_limit = FileSizeLimit, - current_file_name = CurName, - current_file_handle = CurHdl, - current_file_num = CurNum, - file_summary = FileSummary - } - ) when Offset >= FileSizeLimit -> - State1 = sync_current_file_handle(State), - ok = file:close(CurHdl), - NextNum = CurNum + 1, - NextName = integer_to_list(NextNum) ++ ?FILE_EXTENSION, - {ok, NextHdl} = file:open(form_filename(NextName), - [write, raw, binary, delayed_write]), - ok = preallocate(NextHdl, FileSizeLimit, 0), - true = ets:update_element(FileSummary, CurName, {5, NextName}),%% 5 is Right - true = ets:insert_new(FileSummary, {NextName, 0, 0, CurName, undefined}), - State2 = State1 #dqstate { current_file_name = NextName, - current_file_handle = NextHdl, - current_file_num = NextNum, - current_offset = 0, - last_sync_offset = 0 - }, - {ok, compact(sets:from_list([CurName]), State2)}; -maybe_roll_to_new_file(_, State) -> - {ok, State}. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file:position(Hdl, {bof, FileSizeLimit}), - ok = file:truncate(Hdl), - {ok, FinalPos} = file:position(Hdl, {bof, FinalPos}), - ok. - -%% ---- GARBAGE COLLECTION / COMPACTION / AGGREGATION ---- - -compact(FilesSet, State) -> - %% smallest number, hence eldest, hence left-most, first - Files = lists:sort(sets:to_list(FilesSet)), - %% foldl reverses, so now youngest/right-most first - RemainingFiles = lists:foldl(fun (File, Acc) -> - delete_empty_files(File, Acc, State) - end, [], Files), - lists:foldl(fun combine_file/2, State, lists:reverse(RemainingFiles)). - -combine_file(File, State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - %% the file we're looking at may no longer exist as it may have - %% been deleted within the current GC run - case ets:lookup(FileSummary, File) of - [] -> State; - [FileObj = {File, _ValidData, _ContiguousTop, Left, Right}] -> - GoRight = - fun() -> - case Right of - undefined -> State; - _ when not (CurName == Right) -> - [RightObj] = ets:lookup(FileSummary, Right), - {_, State1} = - adjust_meta_and_combine(FileObj, RightObj, - State), - State1; - _ -> State - end - end, - case Left of - undefined -> - GoRight(); - _ -> [LeftObj] = ets:lookup(FileSummary, Left), - case adjust_meta_and_combine(LeftObj, FileObj, State) of - {true, State1} -> State1; - {false, State} -> GoRight() - end - end - end. - -adjust_meta_and_combine( - LeftObj = {LeftFile, LeftValidData, _LeftContigTop, LeftLeft, RightFile}, - RightObj = {RightFile, RightValidData, _RightContigTop, LeftFile, RightRight}, - State = #dqstate { file_size_limit = FileSizeLimit, - file_summary = FileSummary - }) -> - TotalValidData = LeftValidData + RightValidData, - if FileSizeLimit >= TotalValidData -> - State1 = combine_files(RightObj, LeftObj, State), - %% this could fail if RightRight is undefined - %% left is the 4th field - ets:update_element(FileSummary, RightRight, {4, LeftFile}), - true = ets:insert(FileSummary, {LeftFile, - TotalValidData, TotalValidData, - LeftLeft, - RightRight}), - true = ets:delete(FileSummary, RightFile), - {true, State1}; - true -> {false, State} - end. - -sort_msg_locations_by_offset(Asc, List) -> - Comp = case Asc of - true -> fun erlang:'<'/2; - false -> fun erlang:'>'/2 - end, - lists:sort(fun ({_, _, _, OffA, _, _}, {_, _, _, OffB, _, _}) -> - Comp(OffA, OffB) - end, List). - -truncate_and_extend_file(FileHdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file:position(FileHdl, {bof, Lowpoint}), - ok = file:truncate(FileHdl), - ok = preallocate(FileHdl, Highpoint, Lowpoint). - -combine_files({Source, SourceValid, _SourceContiguousTop, - _SourceLeft, _SourceRight}, - {Destination, DestinationValid, DestinationContiguousTop, - _DestinationLeft, _DestinationRight}, - State1) -> - State = close_file(Source, close_file(Destination, State1)), - {ok, SourceHdl} = - file:open(form_filename(Source), - [read, write, raw, binary, read_ahead, delayed_write]), - {ok, DestinationHdl} = - file:open(form_filename(Destination), - [read, write, raw, binary, read_ahead, delayed_write]), - ExpectedSize = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - if DestinationContiguousTop =:= DestinationValid -> - ok = truncate_and_extend_file(DestinationHdl, - DestinationValid, ExpectedSize); - true -> - Tmp = filename:rootname(Destination) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = - file:open(form_filename(Tmp), - [read, write, raw, binary, - read_ahead, delayed_write]), - Worklist = - lists:dropwhile( - fun ({_, _, _, Offset, _, _}) - when Offset /= DestinationContiguousTop -> - %% it cannot be that Offset == - %% DestinationContiguousTop because if it - %% was then DestinationContiguousTop would - %% have been extended by TotalSize - Offset < DestinationContiguousTop - %% Given expected access patterns, I suspect - %% that the list should be naturally sorted - %% as we require, however, we need to - %% enforce it anyway - end, sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Destination, - '_', '_', '_'}))), - ok = copy_messages( - Worklist, DestinationContiguousTop, DestinationValid, - DestinationHdl, TmpHdl, Destination, State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage from - %% Destination, and MsgLocationDets has been updated to - %% reflect compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file:position(TmpHdl, {bof, 0}), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, ExpectedSize), - {ok, TmpSize} = file:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file:sync(DestinationHdl), - ok = file:close(TmpHdl), - ok = file:delete(form_filename(Tmp)) - end, - SourceWorkList = - sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Source, - '_', '_', '_'})), - ok = copy_messages(SourceWorkList, DestinationValid, ExpectedSize, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file:sync(DestinationHdl), - ok = file:close(SourceHdl), - ok = file:close(DestinationHdl), - ok = file:delete(form_filename(Source)), - State. - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, State) -> - {FinalOffset, BlockStart1, BlockEnd1} = - lists:foldl( - fun ({MsgId, RefCount, _Source, Offset, TotalSize, IsPersistent}, - {CurOffset, BlockStart, BlockEnd}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - Size = TotalSize + ?FILE_PACKING_ADJUSTMENT, - %% update MsgLocationDets to reflect change of file and offset - ok = dets_ets_insert - (State, {MsgId, RefCount, Destination, - CurOffset, TotalSize, IsPersistent}), - NextOffset = CurOffset + Size, - if BlockStart =:= undefined -> - %% base case, called only for the first list elem - {NextOffset, Offset, Offset + Size}; - Offset =:= BlockEnd -> - %% extend the current block because the next - %% msg follows straight on - {NextOffset, BlockStart, BlockEnd + Size}; - true -> - %% found a gap, so actually do the work for - %% the previous block - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file:position(SourceHdl, {bof, BlockStart}), - {ok, BSize} = - file:copy(SourceHdl, DestinationHdl, BSize), - {NextOffset, Offset, Offset + Size} - end - end, {InitOffset, undefined, undefined}, WorkList), - %% do the last remaining block - BSize1 = BlockEnd1 - BlockStart1, - {ok, BlockStart1} = file:position(SourceHdl, {bof, BlockStart1}), - {ok, BSize1} = file:copy(SourceHdl, DestinationHdl, BSize1), - ok. - -close_file(File, State = #dqstate { read_file_handles = - {ReadHdls, ReadHdlsAge} }) -> - case dict:find(File, ReadHdls) of - error -> - State; - {ok, {Hdl, Then}} -> - ok = file:close(Hdl), - State #dqstate { read_file_handles = - { dict:erase(File, ReadHdls), - gb_trees:delete(Then, ReadHdlsAge) } } - end. - -delete_empty_files(File, Acc, #dqstate { file_summary = FileSummary }) -> - [{File, ValidData, _ContiguousTop, Left, Right}] = - ets:lookup(FileSummary, File), - case ValidData of - %% we should NEVER find the current file in here hence right - %% should always be a file, not undefined - 0 -> - case {Left, Right} of - {undefined, _} when not (is_atom(Right)) -> - %% the eldest file is empty. YAY! - %% left is the 4th field - true = - ets:update_element(FileSummary, Right, {4, undefined}); - {_, _} when not (is_atom(Right)) -> - %% left is the 4th field - true = ets:update_element(FileSummary, Right, {4, Left}), - %% right is the 5th field - true = ets:update_element(FileSummary, Left, {5, Right}) - end, - true = ets:delete(FileSummary, File), - ok = file:delete(form_filename(File)), - Acc; - _ -> [File|Acc] - end. - -%% ---- DISK RECOVERY ---- - -add_index() -> - case mnesia:add_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - {aborted,{already_exists,rabbit_disk_queue,_}} -> ok; - E -> E - end. - -del_index() -> - case mnesia:del_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - %% hmm, something weird must be going on, but it's probably - %% not the end of the world - {aborted, {no_exists, rabbit_disk_queue,_}} -> ok; - E1 -> E1 - end. - -load_from_disk(State) -> - %% sorted so that smallest number is first. which also means - %% eldest file (left-most) first - ok = add_index(), - {Files, TmpFiles} = get_disk_queue_files(), - ok = recover_crashed_compactions(Files, TmpFiles), - %% There should be no more tmp files now, so go ahead and load the - %% whole lot - State1 = load_messages(undefined, Files, State), - %% Finally, check there is nothing in mnesia which we haven't - %% loaded - State2 = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {State6, FinalQ, MsgSeqIds2, _Len} = - mnesia:foldl( - fun (#dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = {Q, SeqId} }, - {State3, OldQ, MsgSeqIds, Len}) -> - {State4, MsgSeqIds1, Len1} = - case {OldQ == Q, MsgSeqIds} of - {true, _} when Len < ?BATCH_SIZE -> - {State3, MsgSeqIds, Len}; - {false, []} -> {State3, MsgSeqIds, Len}; - {_, _} -> - {ok, State5} = - remove_messages(Q, MsgSeqIds, - txn, State3), - {State5, [], 0} - end, - case dets_ets_lookup(State4, MsgId) of - [] -> ok = mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write), - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, true}] -> - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, false}] -> - {State4, Q, - [{MsgId, SeqId} | MsgSeqIds1], Len1+1} - end - end, {State1, undefined, [], 0}, rabbit_disk_queue), - {ok, State7} = - remove_messages(FinalQ, MsgSeqIds2, txn, State6), - State7 - end), - State8 = extract_sequence_numbers(State2), - ok = del_index(), - {ok, State8}. - -extract_sequence_numbers(State = #dqstate { sequences = Sequences }) -> - true = rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:read_lock_table(rabbit_disk_queue), - mnesia:foldl( - fun (#dq_msg_loc { queue_and_seq_id = {Q, SeqId} }, true) -> - NextWrite = SeqId + 1, - case ets:lookup(Sequences, Q) of - [] -> ets:insert_new(Sequences, - {Q, SeqId, NextWrite}); - [Orig = {Q, Read, Write}] -> - Repl = {Q, lists:min([Read, SeqId]), - lists:max([Write, NextWrite])}, - case Orig == Repl of - true -> true; - false -> ets:insert(Sequences, Repl) - end - end - end, true, rabbit_disk_queue) - end), - ok = remove_gaps_in_sequences(State), - State. - -remove_gaps_in_sequences(#dqstate { sequences = Sequences }) -> - %% read the comments at internal_requeue. - - %% Because we are at startup, we know that no sequence ids have - %% been issued (or at least, they were, but have been - %% forgotten). Therefore, we can nicely shuffle up and not - %% worry. Note that I'm choosing to shuffle up, but alternatively - %% we could shuffle downwards. However, I think there's greater - %% likelihood of gaps being at the bottom rather than the top of - %% the queue, so shuffling up should be the better bet. - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foreach( - fun ({Q, ReadSeqId, WriteSeqId}) -> - Gap = shuffle_up(Q, ReadSeqId-1, WriteSeqId-1, 0), - ReadSeqId1 = ReadSeqId + Gap, - true = ets:insert(Sequences, - {Q, ReadSeqId1, WriteSeqId}) - end, ets:match_object(Sequences, '_')) - end), - ok. - -shuffle_up(_Q, SeqId, SeqId, Gap) -> - Gap; -shuffle_up(Q, BaseSeqId, SeqId, Gap) -> - GapInc = - case mnesia:read(rabbit_disk_queue, {Q, SeqId}, write) of - [] -> 1; - [Obj] -> - case Gap of - 0 -> ok; - _ -> mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc { - queue_and_seq_id = {Q, SeqId + Gap }}, - write), - mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write) - end, - 0 - end, - shuffle_up(Q, BaseSeqId, SeqId - 1, Gap + GapInc). - -load_messages(undefined, [], - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName }) -> - true = ets:insert_new(FileSummary, {CurName, 0, 0, undefined, undefined}), - State; -load_messages(Left, [], State) -> - Num = list_to_integer(filename:rootname(Left)), - Offset = - case dets_ets_match_object(State, {'_', '_', Left, '_', '_', '_'}) of - [] -> 0; - L -> - [ {_MsgId, _RefCount, Left, MaxOffset, TotalSize, _IsPersistent} - | _ ] = sort_msg_locations_by_offset(false, L), - MaxOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT - end, - State #dqstate { current_file_num = Num, current_file_name = Left, - current_offset = Offset }; -load_messages(Left, [File|Files], - State = #dqstate { file_summary = FileSummary }) -> - %% [{MsgId, TotalSize, FileOffset}] - {ok, Messages} = scan_file_for_valid_messages(form_filename(File)), - {ValidMessagesRev, ValidTotalSize} = lists:foldl( - fun (Obj = {MsgId, IsPersistent, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) of - 0 -> {VMAcc, VTSAcc}; - RefCount -> - true = dets_ets_insert_new - (State, {MsgId, RefCount, File, - Offset, TotalSize, IsPersistent}), - {[Obj | VMAcc], - VTSAcc + TotalSize + ?FILE_PACKING_ADJUSTMENT - } - end - end, {[], 0}, Messages), - %% foldl reverses lists and find_contiguous_block_prefix needs - %% elems in the same order as from scan_file_for_valid_messages - {ContiguousTop, _} = find_contiguous_block_prefix( - lists:reverse(ValidMessagesRev)), - Right = case Files of - [] -> undefined; - [F|_] -> F - end, - true = ets:insert_new(FileSummary, - {File, ValidTotalSize, ContiguousTop, Left, Right}), - load_messages(File, Files, State). - -%% ---- DISK RECOVERY OF FAILED COMPACTION ---- - -recover_crashed_compactions(Files, TmpFiles) -> - lists:foreach(fun (TmpFile) -> - ok = recover_crashed_compactions1(Files, TmpFile) end, - TmpFiles), - ok. - -verify_messages_in_mnesia(MsgIds) -> - lists:foreach( - fun (MsgId) -> - true = 0 < erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) - end, MsgIds). - -grab_msg_id({MsgId, _IsPersistent, _TotalSize, _FileOffset}) -> - MsgId. - -recover_crashed_compactions1(Files, TmpFile) -> - NonTmpRelatedFile = filename:rootname(TmpFile) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFile, Files), - %% [{MsgId, TotalSize, FileOffset}] - {ok, UncorruptedMessagesTmp} = - scan_file_for_valid_messages(form_filename(TmpFile)), - MsgIdsTmp = lists:map(fun grab_msg_id/1, UncorruptedMessagesTmp), - %% all of these messages should appear in the mnesia table, - %% otherwise they wouldn't have been copied out - verify_messages_in_mnesia(MsgIdsTmp), - {ok, UncorruptedMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIds = lists:map(fun grab_msg_id/1, UncorruptedMessages), - %% 1) It's possible that everything in the tmp file is also in the - %% main file such that the main file is (prefix ++ - %% tmpfile). This means that compaction failed immediately - %% prior to the final step of deleting the tmp file. Plan: just - %% delete the tmp file - %% 2) It's possible that everything in the tmp file is also in the - %% main file but with holes throughout (or just somthing like - %% main = (prefix ++ hole ++ tmpfile)). This means that - %% compaction wrote out the tmp file successfully and then - %% failed. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 3) It's possible that everything in the tmp file is also in the - %% main file but such that the main file does not end with tmp - %% file (and there are valid messages in the suffix; main = - %% (prefix ++ tmpfile[with extra holes?] ++ suffix)). This - %% means that compaction failed as we were writing out the tmp - %% file. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 4) It's possible that there are messages in the tmp file which - %% are not in the main file. This means that writing out the - %% tmp file succeeded, but then we failed as we were copying - %% them back over to the main file, after truncating the main - %% file. As the main file has already been truncated, it should - %% consist only of valid messages. Plan: Truncate the main file - %% back to before any of the files in the tmp file and copy - %% them over again - case lists:all(fun (MsgId) -> lists:member(MsgId, MsgIds) end, MsgIdsTmp) of - true -> %% we're in case 1, 2 or 3 above. Just delete the tmp file - %% note this also catches the case when the tmp file - %% is empty - ok = file:delete(TmpFile); - _False -> - %% we're in case 4 above. Check that everything in the - %% main file is a valid message in mnesia - verify_messages_in_mnesia(MsgIds), - %% The main file should be contiguous - {Top, MsgIds} = find_contiguous_block_prefix(UncorruptedMessages), - %% we should have that none of the messages in the prefix - %% are in the tmp file - true = lists:all(fun (MsgId) -> - not (lists:member(MsgId, MsgIdsTmp)) - end, MsgIds), - {ok, MainHdl} = file:open(form_filename(NonTmpRelatedFile), - [write, raw, binary, delayed_write]), - {ok, Top} = file:position(MainHdl, Top), - %% wipe out any rubbish at the end of the file - ok = file:truncate(MainHdl), - %% there really could be rubbish at the end of the file - - %% we could have failed after the extending truncate. - %% Remember the head of the list will be the highest entry - %% in the file - [{_, _, TmpTopTotalSize, TmpTopOffset}|_] = UncorruptedMessagesTmp, - TmpSize = TmpTopOffset + TmpTopTotalSize + ?FILE_PACKING_ADJUSTMENT, - ExpectedAbsPos = Top + TmpSize, - {ok, ExpectedAbsPos} = file:position(MainHdl, {cur, TmpSize}), - %% and now extend the main file as big as necessary in a - %% single move if we run out of disk space, this truncate - %% could fail, but we still aren't risking losing data - ok = file:truncate(MainHdl), - {ok, TmpHdl} = file:open(form_filename(TmpFile), - [read, raw, binary, read_ahead]), - {ok, TmpSize} = file:copy(TmpHdl, MainHdl, TmpSize), - ok = file:close(MainHdl), - ok = file:close(TmpHdl), - ok = file:delete(TmpFile), - - {ok, MainMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIdsMain = lists:map(fun grab_msg_id/1, MainMessages), - %% check that everything in MsgIds is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIds), - %% check that everything in MsgIdsTmp is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIdsTmp) - end, - ok. - -%% this assumes that the messages are ordered such that the highest -%% address is at the head of the list. This matches what -%% scan_file_for_valid_messages produces -find_contiguous_block_prefix([]) -> {0, []}; -find_contiguous_block_prefix([ {MsgId, _IsPersistent, TotalSize, Offset} - | Tail]) -> - case find_contiguous_block_prefix(Tail, Offset, [MsgId]) of - {ok, Acc} -> {Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - lists:reverse(Acc)}; - Res -> Res - end. -find_contiguous_block_prefix([], 0, Acc) -> - {ok, Acc}; -find_contiguous_block_prefix([], _N, _Acc) -> - {0, []}; -find_contiguous_block_prefix([{MsgId, _IsPersistent, TotalSize, Offset} | Tail], - ExpectedOffset, Acc) - when ExpectedOffset =:= Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT -> - find_contiguous_block_prefix(Tail, Offset, [MsgId|Acc]); -find_contiguous_block_prefix(List, _ExpectedOffset, _Acc) -> - find_contiguous_block_prefix(List). - -file_name_sort(A, B) -> - ANum = list_to_integer(filename:rootname(A)), - BNum = list_to_integer(filename:rootname(B)), - ANum < BNum. - -get_disk_queue_files() -> - DQFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION, base_directory()), - DQFilesSorted = lists:sort(fun file_name_sort/2, DQFiles), - DQTFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION_TMP, base_directory()), - DQTFilesSorted = lists:sort(fun file_name_sort/2, DQTFiles), - {DQFilesSorted, DQTFilesSorted}. - -%% ---- RAW READING AND WRITING OF FILES ---- - -append_message(FileHdl, MsgId, MsgBody, IsPersistent) when is_binary(MsgBody) -> - BodySize = size(MsgBody), - MsgIdBin = term_to_binary(MsgId), - MsgIdBinSize = size(MsgIdBin), - TotalSize = BodySize + MsgIdBinSize, - StopByte = case IsPersistent of - true -> ?WRITE_OK_PERSISTENT; - false -> ?WRITE_OK_TRANSIENT - end, - case file:write(FileHdl, <>) of - ok -> {ok, TotalSize}; - KO -> KO - end. - -read_message_at_offset(FileHdl, Offset, TotalSize) -> - TotalSizeWriteOkBytes = TotalSize + 1, - case file:position(FileHdl, {bof, Offset}) of - {ok, Offset} -> - case file:read(FileHdl, TotalSize + ?FILE_PACKING_ADJUSTMENT) of - {ok, <>} -> - BodySize = TotalSize - MsgIdBinSize, - case Rest of - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_TRANSIENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, false, BodySize}}; - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_PERSISTENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, true, BodySize}} - end; - KO -> KO - end; - KO -> KO - end. - -scan_file_for_valid_messages(File) -> - {ok, Hdl} = file:open(File, [raw, binary, read]), - Valid = scan_file_for_valid_messages(Hdl, 0, []), - %% if something really bad's happened, the close could fail, but ignore - file:close(Hdl), - Valid. - -scan_file_for_valid_messages(FileHdl, Offset, Acc) -> - case read_next_file_entry(FileHdl, Offset) of - {ok, eof} -> {ok, Acc}; - {ok, {corrupted, NextOffset}} -> - scan_file_for_valid_messages(FileHdl, NextOffset, Acc); - {ok, {ok, MsgId, IsPersistent, TotalSize, NextOffset}} -> - scan_file_for_valid_messages( - FileHdl, NextOffset, - [{MsgId, IsPersistent, TotalSize, Offset} | Acc]); - _KO -> - %% bad message, but we may still have recovered some valid messages - {ok, Acc} - end. - -read_next_file_entry(FileHdl, Offset) -> - TwoIntegers = 2 * ?INTEGER_SIZE_BYTES, - case file:read(FileHdl, TwoIntegers) of - {ok, - <>} -> - case {TotalSize =:= 0, MsgIdBinSize =:= 0} of - {true, _} -> {ok, eof}; %% Nothing we can do other than stop - {false, true} -> - %% current message corrupted, try skipping past it - ExpectedAbsPos = - Offset + ?FILE_PACKING_ADJUSTMENT + TotalSize, - case file:position(FileHdl, {cur, TotalSize + 1}) of - {ok, ExpectedAbsPos} -> - {ok, {corrupted, ExpectedAbsPos}}; - {ok, _SomeOtherPos} -> - {ok, eof}; %% seek failed, so give up - KO -> KO - end; - {false, false} -> %% all good, let's continue - case file:read(FileHdl, MsgIdBinSize) of - {ok, <>} -> - ExpectedAbsPos = Offset + TwoIntegers + TotalSize, - case file:position(FileHdl, - {cur, TotalSize - MsgIdBinSize} - ) of - {ok, ExpectedAbsPos} -> - NextOffset = Offset + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - case file:read(FileHdl, 1) of - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - false, TotalSize, NextOffset}}; - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - true, TotalSize, NextOffset}}; - {ok, _SomeOtherData} -> - {ok, {corrupted, NextOffset}}; - KO -> KO - end; - {ok, _SomeOtherPos} -> - %% seek failed, so give up - {ok, eof}; - KO -> KO - end; - eof -> {ok, eof}; - KO -> KO - end - end; - eof -> {ok, eof}; - KO -> KO - end. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl index 3aa2989a..2be00503 100644 --- a/src/rabbit_guid.erl +++ b/src/rabbit_guid.erl @@ -42,7 +42,6 @@ terminate/2, code_change/3]). -define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_guid"). -record(state, {serial}). @@ -60,24 +59,17 @@ %%---------------------------------------------------------------------------- start_link() -> + %% The persister can get heavily loaded, and we don't want that to + %% impact guid generation. We therefore keep the serial in a + %% separate process rather than calling rabbit_persister:serial/0 + %% directly in the functions below. gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(mnesia:system_info(directory), ?SERIAL_FILENAME), - Serial = case file:read_file(Filename) of - {ok, Content} -> - binary_to_term(Content); - {error, _} -> - 0 - end, - ok = file:write_file(Filename, term_to_binary(Serial + 1)), - Serial. + [rabbit_persister:serial()], []). %% generate a guid that is monotonically increasing per process. %% %% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. +%% persistent message store hasn't been deleted. guid() -> %% We don't use erlang:now() here because a) it may return %% duplicates when the system clock has been rewound prior to a @@ -85,7 +77,7 @@ guid() -> %% now() to move ahead of the system time), and b) it is really %% slow since it takes a global lock and makes a system call. %% - %% A persisted serial number, in combination with self/0 (which + %% rabbit_persister:serial/0, in combination with self/0 (which %% includes the node name) uniquely identifies a process in space %% and time. We combine that with a process-local counter to give %% us a GUID that is monotonically increasing per process. diff --git a/src/rabbit_memsup.erl b/src/rabbit_memsup.erl deleted file mode 100644 index 5f242881..00000000 --- a/src/rabbit_memsup.erl +++ /dev/null @@ -1,126 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0]). - --record(state, {memory_fraction, - timeout, - timer, - mod, - mod_state - }). - --define(SERVER, memsup). %% must be the same as the standard memsup - --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (atom()) -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(update/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -update() -> - gen_server:cast(?SERVER, update). - -%%---------------------------------------------------------------------------- - -init([Mod]) -> - Fraction = os_mon:get_env(memsup, system_memory_high_watermark), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - InitState = Mod:init(), - State = #state { memory_fraction = Fraction, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - mod = Mod, - mod_state = Mod:update(Fraction, InitState) }, - {ok, State}. - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% Export the same API as the real memsup. Note that -%% get_sysmem_high_watermark gives an int in the range 0 - 100, while -%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. -handle_call(get_sysmem_high_watermark, _From, State) -> - {reply, trunc(100 * State#state.memory_fraction), State}; - -handle_call({set_sysmem_high_watermark, Float}, _From, State) -> - {reply, ok, State#state{memory_fraction = Float}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_data, _From, - State = #state { mod = Mod, mod_state = ModState }) -> - {reply, Mod:get_memory_data(ModState), State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State = #state { memory_fraction = MemoryFraction, - mod = Mod, mod_state = ModState }) -> - ModState1 = Mod:update(MemoryFraction, ModState), - {noreply, State #state { mod_state = ModState1 }}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_memsup_darwin.erl b/src/rabbit_memsup_darwin.erl deleted file mode 100644 index 990c5b99..00000000 --- a/src/rabbit_memsup_darwin.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup_darwin). - --export([init/0, update/2, get_memory_data/1]). - --record(state, {alarmed, - total_memory, - allocated_memory}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). - --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). - --endif. - -%%---------------------------------------------------------------------------- - -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. - -update(MemoryFraction, State = #state{ alarmed = Alarmed }) -> - File = os:cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), - PageSize = dict:fetch(page_size, Dict), - Inactive = dict:fetch('Pages inactive', Dict), - Active = dict:fetch('Pages active', Dict), - Free = dict:fetch('Pages free', Dict), - Wired = dict:fetch('Pages wired down', Dict), - MemTotal = PageSize * (Inactive + Active + Free + Wired), - MemUsed = PageSize * (Active + Wired), - NewAlarmed = MemUsed / MemTotal > MemoryFraction, - case {Alarmed, NewAlarmed} of - {false, true} -> - alarm_handler:set_alarm({system_memory_high_watermark, []}); - {true, false} -> - alarm_handler:clear_alarm(system_memory_high_watermark); - _ -> - ok - end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. - -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. - -%%---------------------------------------------------------------------------- - -%% A line looks like "Foo bar: 123456." -parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. diff --git a/src/rabbit_memsup_linux.erl b/src/rabbit_memsup_linux.erl index 460fd88f..ffdc7e99 100644 --- a/src/rabbit_memsup_linux.erl +++ b/src/rabbit_memsup_linux.erl @@ -31,36 +31,74 @@ -module(rabbit_memsup_linux). --export([init/0, update/2, get_memory_data/1]). +-behaviour(gen_server). --record(state, {alarmed, - total_memory, - allocated_memory}). +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([update/0]). + +-define(SERVER, memsup). %% must be the same as the standard memsup + +-define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). + +-record(state, {memory_fraction, alarmed, timeout, timer}). %%---------------------------------------------------------------------------- -ifdef(use_specs). --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(update/0 :: () -> 'ok'). + +-endif. --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). +%%---------------------------------------------------------------------------- --endif. +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + + +update() -> + gen_server:cast(?SERVER, update). %%---------------------------------------------------------------------------- -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. +init(_Args) -> + Fraction = os_mon:get_env(memsup, system_memory_high_watermark), + TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), + {ok, #state{alarmed = false, + memory_fraction = Fraction, + timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, + timer = TRef}}. -update(MemoryFraction, State = #state { alarmed = Alarmed }) -> +start_timer(Timeout) -> + {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), + TRef. + +%% Export the same API as the real memsup. Note that +%% get_sysmem_high_watermark gives an int in the range 0 - 100, while +%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. +handle_call(get_sysmem_high_watermark, _From, State) -> + {reply, trunc(100 * State#state.memory_fraction), State}; + +handle_call({set_sysmem_high_watermark, Float}, _From, State) -> + {reply, ok, State#state{memory_fraction = Float}}; + +handle_call(get_check_interval, _From, State) -> + {reply, State#state.timeout, State}; + +handle_call({set_check_interval, Timeout}, _From, State) -> + {ok, cancel} = timer:cancel(State#state.timer), + {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; + +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast(update, State = #state{alarmed = Alarmed, + memory_fraction = MemoryFraction}) -> File = read_proc_file("/proc/meminfo"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), @@ -78,11 +116,19 @@ update(MemoryFraction, State = #state { alarmed = Alarmed }) -> _ -> ok end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. + {noreply, State#state{alarmed = NewAlarmed}}; + +handle_cast(_Request, State) -> + {noreply, State}. + +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok. -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. +code_change(_OldVsn, State, _Extra) -> + {ok, State}. %%---------------------------------------------------------------------------- @@ -106,10 +152,5 @@ read_proc_file(IoDevice, Acc) -> %% A line looks like "FooBar: 123456 kB" parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. + [Name, Value | _] = string:tokens(Line, ": "), + {list_to_atom(Name), list_to_integer(Value)}. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index c328c111..abf4c7cc 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -53,7 +53,6 @@ -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, keygets/2]). -import(mnesia). -import(lists). @@ -117,11 +116,7 @@ -spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). -spec(start_applications/1 :: ([atom()]) -> 'ok'). -spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> number()). --spec(keygets/2 :: ([({K, V} | {K, non_neg_integer(), V})], [any()]) -> - [({K, V} | any())]). - + -endif. %%---------------------------------------------------------------------------- @@ -365,8 +360,7 @@ dirty_foreach_key1(F, TableName, K) -> end. dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, - {file, FileName}]), + {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, {file, FileName}]), dirty_dump_log1(LH, disk_log:chunk(LH, start)), disk_log:close(LH). @@ -450,33 +444,3 @@ stop_applications(Apps) -> cannot_stop_application, Apps). -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N - T of - 0 -> N; - _ -> 1 + T - end. - -keygets(Keys, KeyList) -> - lists:reverse( - lists:foldl( - fun({Key, Pos, Default}, Acc) -> - case lists:keysearch(Key, Pos, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end; - ({Key, Default}, Acc) -> - case lists:keysearch(Key, 1, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end - end, [], Keys)). diff --git a/src/rabbit_mixed_queue.erl b/src/rabbit_mixed_queue.erl deleted file mode 100644 index 4b0810a8..00000000 --- a/src/rabbit_mixed_queue.erl +++ /dev/null @@ -1,596 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_mixed_queue). - --include("rabbit.hrl"). - --export([init/2]). - --export([publish/2, publish_delivered/2, deliver/1, ack/2, - tx_publish/2, tx_commit/3, tx_cancel/2, requeue/2, purge/1, - length/1, is_empty/1, delete_queue/1, maybe_prefetch/1]). - --export([to_disk_only_mode/2, to_mixed_mode/2, info/1, - estimate_queue_memory_and_reset_counters/1]). - --record(mqstate, { mode, - msg_buf, - queue, - is_durable, - length, - memory_size, - memory_gain, - memory_loss, - prefetcher - } - ). - --define(TO_DISK_MAX_FLUSH_SIZE, 100000). - --ifdef(use_specs). - --type(mode() :: ( 'disk' | 'mixed' )). --type(mqstate() :: #mqstate { mode :: mode(), - msg_buf :: queue(), - queue :: queue_name(), - is_durable :: bool(), - length :: non_neg_integer(), - memory_size :: (non_neg_integer() | 'undefined'), - memory_gain :: (non_neg_integer() | 'undefined'), - memory_loss :: (non_neg_integer() | 'undefined'), - prefetcher :: (pid() | 'undefined') - }). --type(acktag() :: ( 'noack' | { non_neg_integer(), non_neg_integer() })). --type(okmqs() :: {'ok', mqstate()}). - --spec(init/2 :: (queue_name(), bool()) -> okmqs()). --spec(publish/2 :: (message(), mqstate()) -> okmqs()). --spec(publish_delivered/2 :: (message(), mqstate()) -> - {'ok', acktag(), mqstate()}). --spec(deliver/1 :: (mqstate()) -> - {('empty' | {message(), bool(), acktag(), non_neg_integer()}), - mqstate()}). --spec(ack/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(tx_publish/2 :: (message(), mqstate()) -> okmqs()). --spec(tx_commit/3 :: ([message()], [acktag()], mqstate()) -> okmqs()). --spec(tx_cancel/2 :: ([message()], mqstate()) -> okmqs()). --spec(requeue/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(purge/1 :: (mqstate()) -> okmqs()). - --spec(delete_queue/1 :: (mqstate()) -> {'ok', mqstate()}). - --spec(length/1 :: (mqstate()) -> non_neg_integer()). --spec(is_empty/1 :: (mqstate()) -> bool()). - --spec(to_disk_only_mode/2 :: ([message()], mqstate()) -> okmqs()). --spec(to_mixed_mode/2 :: ([message()], mqstate()) -> okmqs()). - --spec(estimate_queue_memory_and_reset_counters/1 :: (mqstate()) -> - {mqstate(), non_neg_integer(), non_neg_integer(), - non_neg_integer()}). --spec(info/1 :: (mqstate()) -> mode()). - --endif. - -init(Queue, IsDurable) -> - Len = rabbit_disk_queue:length(Queue), - MsgBuf = inc_queue_length(Queue, queue:new(), Len), - Size = rabbit_disk_queue:foldl( - fun ({Msg = #basic_message { is_persistent = true }, - _Size, _IsDelivered, _AckTag}, Acc) -> - Acc + size_of_message(Msg) - end, 0, Queue), - {ok, #mqstate { mode = disk, msg_buf = MsgBuf, queue = Queue, - is_durable = IsDurable, length = Len, - memory_size = Size, memory_gain = undefined, - memory_loss = undefined, prefetcher = undefined }}. - -size_of_message( - #basic_message { content = #content { payload_fragments_rev = Payload }}) -> - lists:foldl(fun (Frag, SumAcc) -> - SumAcc + size(Frag) - end, 0, Payload). - -to_disk_only_mode(_TxnMessages, State = #mqstate { mode = disk }) -> - {ok, State}; -to_disk_only_mode(TxnMessages, State = - #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, prefetcher = Prefetcher - }) -> - rabbit_log:info("Converting queue to disk only mode: ~p~n", [Q]), - State1 = State #mqstate { mode = disk }, - {MsgBuf1, State2} = - case Prefetcher of - undefined -> {MsgBuf, State1}; - _ -> - case rabbit_queue_prefetcher:drain_and_stop(Prefetcher) of - empty -> {MsgBuf, State1}; - {Fetched, Len} -> - State3 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State1), - {queue:join(Fetched, MsgBuf2), State3} - end - end, - %% We enqueue _everything_ here. This means that should a message - %% already be in the disk queue we must remove it and add it back - %% in. Fortunately, by using requeue, we avoid rewriting the - %% message on disk. - %% Note we also batch together messages on disk so that we minimise - %% the calls to requeue. - {ok, MsgBuf3} = - send_messages_to_disk(IsDurable, Q, MsgBuf1, 0, 0, [], queue:new()), - %% tx_publish txn messages. Some of these will have been already - %% published if they really are durable and persistent which is - %% why we can't just use our own tx_publish/2 function (would end - %% up publishing twice, so refcount would go wrong in disk_queue). - lists:foreach( - fun (Msg = #basic_message { is_persistent = IsPersistent }) -> - ok = case IsDurable andalso IsPersistent of - true -> ok; - _ -> rabbit_disk_queue:tx_publish(Msg) - end - end, TxnMessages), - garbage_collect(), - {ok, State2 #mqstate { msg_buf = MsgBuf3, prefetcher = undefined }}. - -send_messages_to_disk(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf) -> - case queue:out(Queue) of - {empty, _Queue} -> - ok = flush_messages_to_disk_queue(Q, Commit), - [] = flush_requeue_to_disk_queue(Q, RequeueCount, []), - {ok, MsgBuf}; - {{value, {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered}}, Queue1} -> - case IsDurable andalso IsPersistent of - true -> %% it's already in the Q - send_messages_to_disk( - IsDurable, Q, Queue1, PublishCount, RequeueCount + 1, - Commit, inc_queue_length(Q, MsgBuf, 1)); - false -> - republish_message_to_disk_queue( - IsDurable, Q, Queue1, PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered) - end; - {{value, {Msg, IsDelivered, _AckTag}}, Queue1} -> - %% these have come via the prefetcher, so are no longer in - %% the disk queue so they need to be republished - republish_message_to_disk_queue(IsDelivered, Q, Queue1, - PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered); - {{value, {Q, Count}}, Queue1} -> - send_messages_to_disk(IsDurable, Q, Queue1, PublishCount, - RequeueCount + Count, Commit, - inc_queue_length(Q, MsgBuf, Count)) - end. - -republish_message_to_disk_queue(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf, Msg = - #basic_message { guid = MsgId }, IsDelivered) -> - Commit1 = flush_requeue_to_disk_queue(Q, RequeueCount, Commit), - ok = rabbit_disk_queue:tx_publish(Msg), - {PublishCount1, Commit2} = - case PublishCount == ?TO_DISK_MAX_FLUSH_SIZE of - true -> ok = flush_messages_to_disk_queue(Q, Commit1), - {1, [{MsgId, IsDelivered}]}; - false -> {PublishCount + 1, [{MsgId, IsDelivered} | Commit1]} - end, - send_messages_to_disk(IsDurable, Q, Queue, PublishCount1, 0, - Commit2, inc_queue_length(Q, MsgBuf, 1)). - -flush_messages_to_disk_queue(_Q, []) -> - ok; -flush_messages_to_disk_queue(Q, Commit) -> - rabbit_disk_queue:tx_commit(Q, lists:reverse(Commit), []). - -flush_requeue_to_disk_queue(_Q, 0, Commit) -> - Commit; -flush_requeue_to_disk_queue(Q, RequeueCount, Commit) -> - ok = flush_messages_to_disk_queue(Q, Commit), - ok = rabbit_disk_queue:requeue_next_n(Q, RequeueCount), - []. - -to_mixed_mode(_TxnMessages, State = #mqstate { mode = mixed }) -> - {ok, State}; -to_mixed_mode(TxnMessages, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable }) -> - rabbit_log:info("Converting queue to mixed mode: ~p~n", [Q]), - %% The queue has a token just saying how many msgs are on disk - %% (this is already built for us when in disk mode). - %% Don't actually do anything to the disk - %% Don't start prefetcher just yet because the queue maybe busy - - %% wait for hibernate timeout in the amqqueue_process. - - %% Remove txn messages from disk which are neither persistent and - %% durable. This is necessary to avoid leaks. This is also pretty - %% much the inverse behaviour of our own tx_cancel/2 which is why - %% we're not using it. - Cancel = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent }, Acc) -> - case IsDurable andalso IsPersistent of - true -> Acc; - false -> [Msg #basic_message.guid | Acc] - end - end, [], TxnMessages), - ok = if Cancel == [] -> ok; - true -> rabbit_disk_queue:tx_cancel(Cancel) - end, - garbage_collect(), - {ok, State #mqstate { mode = mixed }}. - -inc_queue_length(_Q, MsgBuf, 0) -> - MsgBuf; -inc_queue_length(Q, MsgBuf, Count) -> - {NewCount, MsgBufTail} = - case queue:out_r(MsgBuf) of - {empty, MsgBuf1} -> {Count, MsgBuf1}; - {{value, {Q, Len}}, MsgBuf1} -> {Len + Count, MsgBuf1}; - {{value, _}, _MsgBuf1} -> {Count, MsgBuf} - end, - queue:in({Q, NewCount}, MsgBufTail). - -dec_queue_length(Count, State = #mqstate { queue = Q, msg_buf = MsgBuf }) -> - case queue:out(MsgBuf) of - {{value, {Q, Len}}, MsgBuf1} -> - case Len of - Count -> - maybe_prefetch(State #mqstate { msg_buf = MsgBuf1 }); - _ when Len > Count -> - State #mqstate { msg_buf = queue:in_r({Q, Len-Count}, - MsgBuf1)} - end; - _ -> State - end. - -maybe_prefetch(State = #mqstate { prefetcher = undefined, - mode = mixed, - msg_buf = MsgBuf, - queue = Q }) -> - case queue:peek(MsgBuf) of - {value, {Q, Count}} -> {ok, Prefetcher} = - rabbit_queue_prefetcher:start_link(Q, Count), - State #mqstate { prefetcher = Prefetcher }; - _ -> State - end; -maybe_prefetch(State) -> - State. - -publish(Msg, State = #mqstate { mode = disk, queue = Q, length = Length, - msg_buf = MsgBuf, memory_size = QSize, - memory_gain = Gain }) -> - MsgBuf1 = inc_queue_length(Q, MsgBuf, 1), - ok = rabbit_disk_queue:publish(Q, Msg, false), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_gain = Gain + MsgSize, - memory_size = QSize + MsgSize, - msg_buf = MsgBuf1, length = Length + 1 }}; -publish(Msg = #basic_message { is_persistent = IsPersistent }, State = - #mqstate { queue = Q, mode = mixed, is_durable = IsDurable, - msg_buf = MsgBuf, length = Length, memory_size = QSize, - memory_gain = Gain }) -> - ok = case IsDurable andalso IsPersistent of - true -> rabbit_disk_queue:publish(Q, Msg, false); - false -> ok - end, - MsgSize = size_of_message(Msg), - {ok, State #mqstate { msg_buf = queue:in({Msg, false}, MsgBuf), - length = Length + 1, memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -%% Assumption here is that the queue is empty already (only called via -%% attempt_immediate_delivery). -publish_delivered(Msg = - #basic_message { guid = MsgId, is_persistent = IsPersistent}, - State = - #mqstate { mode = Mode, is_durable = IsDurable, - queue = Q, length = 0, - memory_size = QSize, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:publish(Q, Msg, true), - MsgSize = size_of_message(Msg), - State1 = State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }, - case IsDurable andalso IsPersistent of - true -> - %% must call phantom_deliver otherwise the msg remains at - %% the head of the queue. This is synchronous, but - %% unavoidable as we need the AckTag - {MsgId, IsPersistent, true, AckTag, 0} = - rabbit_disk_queue:phantom_deliver(Q), - {ok, AckTag, State1}; - false -> - %% in this case, we don't actually care about the ack, so - %% auto ack it (asynchronously). - ok = rabbit_disk_queue:auto_ack_next_message(Q), - {ok, noack, State1} - end; -publish_delivered(Msg, State = - #mqstate { mode = mixed, length = 0, memory_size = QSize, - memory_gain = Gain }) -> - MsgSize = size_of_message(Msg), - {ok, noack, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -deliver(State = #mqstate { length = 0 }) -> - {empty, State}; -deliver(State = #mqstate { msg_buf = MsgBuf, queue = Q, - is_durable = IsDurable, length = Length, - prefetcher = Prefetcher }) -> - {{value, Value}, MsgBuf1} = queue:out(MsgBuf), - Rem = Length - 1, - State1 = State #mqstate { length = Rem }, - case Value of - {Msg = #basic_message { guid = MsgId, is_persistent = IsPersistent }, - IsDelivered} -> - AckTag = - case IsDurable andalso IsPersistent of - true -> - {MsgId, IsPersistent, IsDelivered, AckTag1, _PRem} - = rabbit_disk_queue:phantom_deliver(Q), - AckTag1; - false -> - noack - end, - State2 = maybe_prefetch(State1 #mqstate { msg_buf = MsgBuf1 }), - {{Msg, IsDelivered, AckTag, Rem}, State2}; - {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTag} -> - %% message has come via the prefetcher, thus it's been - %% delivered. If it's not persistent+durable, we should - %% ack it now - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, - State1 #mqstate { msg_buf = MsgBuf1 }}; - _ when Prefetcher == undefined -> - State2 = dec_queue_length(1, State1), - {Msg = #basic_message { is_persistent = IsPersistent }, - _Size, IsDelivered, AckTag, _PersistRem} - = rabbit_disk_queue:deliver(Q), - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, State2}; - _ -> - case rabbit_queue_prefetcher:drain(Prefetcher) of - empty -> deliver(State #mqstate { prefetcher = undefined }); - {Fetched, Len, Status} -> - State2 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State), - deliver(State2 #mqstate - { msg_buf = queue:join(Fetched, MsgBuf2), - prefetcher = case Status of - finished -> undefined; - continuing -> Prefetcher - end }) - end - end. - -maybe_ack(_Q, true, true, AckTag) -> - AckTag; -maybe_ack(Q, _, _, AckTag) -> - ok = rabbit_disk_queue:ack(Q, [AckTag]), - noack. - -remove_noacks(MsgsWithAcks) -> - lists:foldl( - fun ({Msg, noack}, {AccAckTags, AccSize}) -> - {AccAckTags, size_of_message(Msg) + AccSize}; - ({Msg, AckTag}, {AccAckTags, AccSize}) -> - {[AckTag | AccAckTags], size_of_message(Msg) + AccSize} - end, {[], 0}, MsgsWithAcks). - -ack(MsgsWithAcks, State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss }) -> - {AckTags, ASize} = remove_noacks(MsgsWithAcks), - ok = case AckTags of - [] -> ok; - _ -> rabbit_disk_queue:ack(Q, AckTags) - end, - State1 = State #mqstate { memory_size = QSize - ASize, - memory_loss = Loss + ASize }, - {ok, State1}. - -tx_publish(Msg = #basic_message { is_persistent = IsPersistent }, - State = #mqstate { mode = Mode, memory_size = QSize, - is_durable = IsDurable, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:tx_publish(Msg), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}; -tx_publish(Msg, State = #mqstate { mode = mixed, memory_size = QSize, - memory_gain = Gain }) -> - %% this message will reappear in the tx_commit, so ignore for now - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -only_msg_ids(Pubs) -> - lists:map(fun (Msg) -> {Msg #basic_message.guid, false} end, Pubs). - -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = disk, queue = Q, length = Length, - memory_size = QSize, memory_loss = Loss, - msg_buf = MsgBuf }) -> - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = if ([] == Publishes) andalso ([] == RealAcks) -> ok; - true -> rabbit_disk_queue:tx_commit(Q, only_msg_ids(Publishes), - RealAcks) - end, - Len = erlang:length(Publishes), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len), - memory_size = QSize - ASize, - memory_loss = Loss + ASize }}; -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, length = Length, - memory_size = QSize, memory_loss = Loss }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl(fun (Msg = #basic_message { is_persistent = IsPersistent }, - {Acc, MsgBuf2}) -> - Acc1 = - case IsPersistent andalso IsDurable of - true -> [ {Msg #basic_message.guid, false} - | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, false}, MsgBuf2)} - end, {[], MsgBuf}, Publishes), - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = case ([] == PersistentPubs) andalso ([] == RealAcks) of - true -> ok; - false -> rabbit_disk_queue:tx_commit( - Q, lists:reverse(PersistentPubs), RealAcks) - end, - {ok, State #mqstate { msg_buf = MsgBuf1, memory_size = QSize - ASize, - length = Length + erlang:length(Publishes), - memory_loss = Loss + ASize }}. - -tx_cancel(Publishes, State = #mqstate { mode = disk, memory_size = QSize, - memory_loss = Loss }) -> - {MsgIds, CSize} = - lists:foldl( - fun (Msg = #basic_message { guid = MsgId }, {MsgIdsAcc, CSizeAcc}) -> - {[MsgId | MsgIdsAcc], CSizeAcc + size_of_message(Msg)} - end, {[], 0}, Publishes), - ok = rabbit_disk_queue:tx_cancel(MsgIds), - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}; -tx_cancel(Publishes, State = #mqstate { mode = mixed, is_durable = IsDurable, - memory_size = QSize, - memory_loss = Loss }) -> - {PersistentPubs, CSize} = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, {Acc, CSizeAcc}) -> - CSizeAcc1 = CSizeAcc + size_of_message(Msg), - {case IsPersistent of - true -> [MsgId | Acc]; - _ -> Acc - end, CSizeAcc1} - end, {[], 0}, Publishes), - ok = - if IsDurable -> - rabbit_disk_queue:tx_cancel(PersistentPubs); - true -> ok - end, - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}. - -%% [{Msg, AckTag}] -requeue(MessagesWithAckTags, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable, - length = Length, - msg_buf = MsgBuf }) -> - %% here, we may have messages with no ack tags, because of the - %% fact they are not persistent, but nevertheless we want to - %% requeue them. This means publishing them delivered. - Requeue - = lists:foldl( - fun ({#basic_message { is_persistent = IsPersistent }, AckTag}, RQ) - when IsDurable andalso IsPersistent -> - [{AckTag, true} | RQ]; - ({Msg, noack}, RQ) -> - ok = case RQ == [] of - true -> ok; - false -> rabbit_disk_queue:requeue( - Q, lists:reverse(RQ)) - end, - ok = rabbit_disk_queue:publish(Q, Msg, true), - [] - end, [], MessagesWithAckTags), - ok = rabbit_disk_queue:requeue(Q, lists:reverse(Requeue)), - Len = erlang:length(MessagesWithAckTags), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len) }}; -requeue(MessagesWithAckTags, State = #mqstate { mode = mixed, queue = Q, - msg_buf = MsgBuf, - is_durable = IsDurable, - length = Length }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, AckTag}, - {Acc, MsgBuf2}) -> - Acc1 = - case IsDurable andalso IsPersistent of - true -> [{AckTag, true} | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, true}, MsgBuf2)} - end, {[], MsgBuf}, MessagesWithAckTags), - ok = case PersistentPubs of - [] -> ok; - _ -> rabbit_disk_queue:requeue(Q, lists:reverse(PersistentPubs)) - end, - {ok, State #mqstate {msg_buf = MsgBuf1, - length = Length + erlang:length(MessagesWithAckTags)}}. - -purge(State = #mqstate { queue = Q, mode = disk, length = Count, - memory_loss = Loss, memory_size = QSize }) -> - Count = rabbit_disk_queue:purge(Q), - {Count, State #mqstate { length = 0, memory_size = 0, - memory_loss = Loss + QSize }}; -purge(State = #mqstate { queue = Q, mode = mixed, length = Length, - memory_loss = Loss, memory_size = QSize, - prefetcher = Prefetcher }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - rabbit_disk_queue:purge(Q), - {Length, - State #mqstate { msg_buf = queue:new(), length = 0, memory_size = 0, - memory_loss = Loss + QSize, prefetcher = undefined }}. - -delete_queue(State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss, prefetcher = Prefetcher - }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - ok = rabbit_disk_queue:delete_queue(Q), - {ok, State #mqstate { length = 0, memory_size = 0, msg_buf = queue:new(), - memory_loss = Loss + QSize, prefetcher = undefined }}. - -length(#mqstate { length = Length }) -> - Length. - -is_empty(#mqstate { length = Length }) -> - 0 == Length. - -estimate_queue_memory_and_reset_counters(State = - #mqstate { memory_size = Size, memory_gain = Gain, memory_loss = Loss }) -> - {State #mqstate { memory_gain = 0, memory_loss = 0 }, 4 * Size, Gain, Loss}. - -info(#mqstate { mode = Mode }) -> - Mode. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index b40294f6..575ecb0a 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -144,31 +144,11 @@ table_definitions() -> {disc_copies, [node()]}]}, {rabbit_queue, [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}, - {rabbit_disk_queue, - [{record_name, dq_msg_loc}, - {type, set}, - {local_content, true}, - {attributes, record_info(fields, dq_msg_loc)}, - {disc_copies, [node()]}]} - ]. - -replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - not lists:member({local_content, true}, Attrs) - ]. - -non_replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - lists:member({local_content, true}, Attrs) - ]. + {attributes, record_info(fields, amqqueue)}]}]. table_names() -> [Tab || {Tab, _} <- table_definitions()]. -replicated_table_names() -> - [Tab || {Tab, _} <- replicated_table_definitions()]. - dir() -> mnesia:system_info(directory). ensure_mnesia_dir() -> @@ -193,8 +173,7 @@ ensure_mnesia_not_running() -> check_schema_integrity() -> %%TODO: more thorough checks - case catch [mnesia:table_info(Tab, version) - || Tab <- table_names()] of + case catch [mnesia:table_info(Tab, version) || Tab <- table_names()] of {'EXIT', Reason} -> {error, Reason}; _ -> ok end. @@ -274,11 +253,9 @@ init_db(ClusterNodes) -> WasDiskNode = mnesia:system_info(use_dir), IsDiskNode = ClusterNodes == [] orelse lists:member(node(), ClusterNodes), - ExtraNodes = ClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ExtraNodes) of + case mnesia:change_config(extra_db_nodes, ClusterNodes -- [node()]) of {ok, []} -> - case WasDiskNode of - true -> + if WasDiskNode and IsDiskNode -> case check_schema_integrity() of ok -> ok; @@ -293,18 +270,22 @@ init_db(ClusterNodes) -> ok = move_db(), ok = create_schema() end; - false -> - ok = create_schema() + WasDiskNode -> + throw({error, {cannot_convert_disk_node_to_ram_node, + ClusterNodes}}); + IsDiskNode -> + ok = create_schema(); + true -> + throw({error, {unable_to_contact_cluster_nodes, + ClusterNodes}}) end; {ok, [_|_]} -> - TableCopyType = case IsDiskNode of - true -> disc; - false -> ram - end, - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_non_replicated_table_copies(disc), - ok = create_local_replicated_table_copies(TableCopyType); + ok = wait_for_tables(), + ok = create_local_table_copies( + case IsDiskNode of + true -> disc; + false -> ram + end); {error, Reason} -> %% one reason we may end up here is if we try to join %% nodes together that are currently running standalone or @@ -355,27 +336,16 @@ create_tables() -> table_definitions()), ok. -create_local_replicated_table_copies(Type) -> - create_local_table_copies(Type, replicated_table_definitions()). - -create_local_non_replicated_table_copies(Type) -> - create_local_table_copies(Type, non_replicated_table_definitions()). - -create_local_table_copies(Type, TableDefinitions) -> +create_local_table_copies(Type) -> + ok = if Type /= ram -> create_local_table_copy(schema, disc_copies); + true -> ok + end, lists:foreach( fun({Tab, TabDef}) -> HasDiscCopies = - case lists:keysearch(disc_copies, 1, TabDef) of - false -> false; - {value, {disc_copies, List1}} -> - lists:member(node(), List1) - end, + lists:keymember(disc_copies, 1, TabDef), HasDiscOnlyCopies = - case lists:keysearch(disc_only_copies, 1, TabDef) of - false -> false; - {value, {disc_only_copies, List2}} -> - lists:member(node(), List2) - end, + lists:keymember(disc_only_copies, 1, TabDef), StorageType = case Type of disc -> @@ -396,7 +366,10 @@ create_local_table_copies(Type, TableDefinitions) -> end, ok = create_local_table_copy(Tab, StorageType) end, - TableDefinitions), + table_definitions()), + ok = if Type == ram -> create_local_table_copy(schema, ram_copies); + true -> ok + end, ok. create_local_table_copy(Tab, Type) -> @@ -411,16 +384,10 @@ create_local_table_copy(Tab, Type) -> end, ok. -wait_for_replicated_tables() -> - wait_for_tables(replicated_table_names()). - -wait_for_tables() -> - wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> +wait_for_tables() -> case check_schema_integrity() of ok -> - case mnesia:wait_for_tables(TableNames, 30000) of + case mnesia:wait_for_tables(table_names(), 30000) of ok -> ok; {timeout, BadTabs} -> throw({error, {timeout_waiting_for_tables, BadTabs}}); diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl new file mode 100644 index 00000000..d0d60ddf --- /dev/null +++ b/src/rabbit_persister.erl @@ -0,0 +1,523 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_persister). + +-behaviour(gen_server). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([transaction/1, extend_transaction/2, dirty_work/1, + commit_transaction/1, rollback_transaction/1, + force_snapshot/0, serial/0]). + +-include("rabbit.hrl"). + +-define(SERVER, ?MODULE). + +-define(LOG_BUNDLE_DELAY, 5). +-define(COMPLETE_BUNDLE_DELAY, 2). + +-define(HIBERNATE_AFTER, 10000). + +-define(MAX_WRAP_ENTRIES, 500). + +-define(PERSISTER_LOG_FORMAT_VERSION, {2, 4}). + +-record(pstate, {log_handle, entry_count, deadline, + pending_logs, pending_replies, + snapshot}). + +%% two tables for efficient persistency +%% one maps a key to a message +%% the other maps a key to one or more queues. +%% The aim is to reduce the overload of storing a message multiple times +%% when it appears in several queues. +-record(psnapshot, {serial, transactions, messages, queues}). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(qmsg() :: {amqqueue(), pkey()}). +-type(work_item() :: + {publish, message(), qmsg()} | + {deliver, qmsg()} | + {ack, qmsg()}). + +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(transaction/1 :: ([work_item()]) -> 'ok'). +-spec(extend_transaction/2 :: (txn(), [work_item()]) -> 'ok'). +-spec(dirty_work/1 :: ([work_item()]) -> 'ok'). +-spec(commit_transaction/1 :: (txn()) -> 'ok'). +-spec(rollback_transaction/1 :: (txn()) -> 'ok'). +-spec(force_snapshot/0 :: () -> 'ok'). +-spec(serial/0 :: () -> non_neg_integer()). + +-endif. + +%%---------------------------------------------------------------------------- + +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + +transaction(MessageList) -> + ?LOGDEBUG("transaction ~p~n", [MessageList]), + TxnKey = rabbit_guid:guid(), + gen_server:call(?SERVER, {transaction, TxnKey, MessageList}, infinity). + +extend_transaction(TxnKey, MessageList) -> + ?LOGDEBUG("extend_transaction ~p ~p~n", [TxnKey, MessageList]), + gen_server:cast(?SERVER, {extend_transaction, TxnKey, MessageList}). + +dirty_work(MessageList) -> + ?LOGDEBUG("dirty_work ~p~n", [MessageList]), + gen_server:cast(?SERVER, {dirty_work, MessageList}). + +commit_transaction(TxnKey) -> + ?LOGDEBUG("commit_transaction ~p~n", [TxnKey]), + gen_server:call(?SERVER, {commit_transaction, TxnKey}, infinity). + +rollback_transaction(TxnKey) -> + ?LOGDEBUG("rollback_transaction ~p~n", [TxnKey]), + gen_server:cast(?SERVER, {rollback_transaction, TxnKey}). + +force_snapshot() -> + gen_server:call(?SERVER, force_snapshot, infinity). + +serial() -> + gen_server:call(?SERVER, serial, infinity). + +%%-------------------------------------------------------------------- + +init(_Args) -> + process_flag(trap_exit, true), + FileName = base_filename(), + ok = filelib:ensure_dir(FileName), + Snapshot = #psnapshot{serial = 0, + transactions = dict:new(), + messages = ets:new(messages, []), + queues = ets:new(queues, [])}, + LogHandle = + case disk_log:open([{name, rabbit_persister}, + {head, current_snapshot(Snapshot)}, + {file, FileName}]) of + {ok, LH} -> LH; + {repaired, LH, {recovered, Recovered}, {badbytes, Bad}} -> + WarningFun = if + Bad > 0 -> fun rabbit_log:warning/2; + true -> fun rabbit_log:info/2 + end, + WarningFun("Repaired persister log - ~p recovered, ~p bad~n", + [Recovered, Bad]), + LH + end, + {Res, LoadedSnapshot} = internal_load_snapshot(LogHandle, Snapshot), + NewSnapshot = LoadedSnapshot#psnapshot{ + serial = LoadedSnapshot#psnapshot.serial + 1}, + case Res of + ok -> + ok = take_snapshot(LogHandle, NewSnapshot); + {error, Reason} -> + rabbit_log:error("Failed to load persister log: ~p~n", [Reason]), + ok = take_snapshot_and_save_old(LogHandle, NewSnapshot) + end, + State = #pstate{log_handle = LogHandle, + entry_count = 0, + deadline = infinity, + pending_logs = [], + pending_replies = [], + snapshot = NewSnapshot}, + {ok, State}. + +handle_call({transaction, Key, MessageList}, From, State) -> + NewState = internal_extend(Key, MessageList, State), + do_noreply(internal_commit(From, Key, NewState)); +handle_call({commit_transaction, TxnKey}, From, State) -> + do_noreply(internal_commit(From, TxnKey, State)); +handle_call(force_snapshot, _From, State) -> + do_reply(ok, flush(true, State)); +handle_call(serial, _From, + State = #pstate{snapshot = #psnapshot{serial = Serial}}) -> + do_reply(Serial, State); +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast({rollback_transaction, TxnKey}, State) -> + do_noreply(internal_rollback(TxnKey, State)); +handle_cast({dirty_work, MessageList}, State) -> + do_noreply(internal_dirty_work(MessageList, State)); +handle_cast({extend_transaction, TxnKey, MessageList}, State) -> + do_noreply(internal_extend(TxnKey, MessageList, State)); +handle_cast(_Msg, State) -> + {noreply, State}. + +handle_info(timeout, State = #pstate{deadline = infinity}) -> + State1 = flush(true, State), + %% TODO: Once we drop support for R11B-5, we can change this to + %% {noreply, State1, hibernate}; + proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State1]); +handle_info(timeout, State) -> + do_noreply(flush(State)); +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, State = #pstate{log_handle = LogHandle}) -> + flush(State), + disk_log:close(LogHandle), + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, flush(State)}. + +%%-------------------------------------------------------------------- + +internal_extend(Key, MessageList, State) -> + log_work(fun (ML) -> {extend_transaction, Key, ML} end, + MessageList, State). + +internal_dirty_work(MessageList, State) -> + log_work(fun (ML) -> {dirty_work, ML} end, + MessageList, State). + +internal_commit(From, Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {commit_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + complete(From, Unit, State#pstate{snapshot = NewSnapshot}). + +internal_rollback(Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {rollback_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +complete(From, Item, State = #pstate{deadline = ExistingDeadline, + pending_logs = Logs, + pending_replies = Waiting}) -> + State#pstate{deadline = compute_deadline( + ?COMPLETE_BUNDLE_DELAY, ExistingDeadline), + pending_logs = [Item | Logs], + pending_replies = [From | Waiting]}. + +%% This is made to limit disk usage by writing messages only once onto +%% disk. We keep a table associating pkeys to messages, and provided +%% the list of messages to output is left to right, we can guarantee +%% that pkeys will be a backreference to a message in memory when a +%% "tied" is met. +log_work(CreateWorkUnit, MessageList, + State = #pstate{ + snapshot = Snapshot = #psnapshot{ + messages = Messages}}) -> + Unit = CreateWorkUnit( + rabbit_misc:map_in_order( + fun(M = {publish, Message, QK = {_QName, PKey}}) -> + case ets:lookup(Messages, PKey) of + [_] -> {tied, QK}; + [] -> ets:insert(Messages, {PKey, Message}), + M + end; + (M) -> M + end, + MessageList)), + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +log(State = #pstate{deadline = ExistingDeadline, pending_logs = Logs}, + Message) -> + State#pstate{deadline = compute_deadline(?LOG_BUNDLE_DELAY, + ExistingDeadline), + pending_logs = [Message | Logs]}. + +base_filename() -> + rabbit_mnesia:dir() ++ "/rabbit_persister.LOG". + +take_snapshot(LogHandle, OldFileName, Snapshot) -> + ok = disk_log:sync(LogHandle), + %% current_snapshot is the Head (ie. first thing logged) + ok = disk_log:reopen(LogHandle, OldFileName, current_snapshot(Snapshot)). + +take_snapshot(LogHandle, Snapshot) -> + OldFileName = lists:flatten(base_filename() ++ ".previous"), + file:delete(OldFileName), + rabbit_log:info("Rolling persister log to ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +take_snapshot_and_save_old(LogHandle, Snapshot) -> + {MegaSecs, Secs, MicroSecs} = erlang:now(), + Timestamp = MegaSecs * 1000000 + Secs * 1000 + MicroSecs, + OldFileName = lists:flatten(io_lib:format("~s.saved.~p", + [base_filename(), Timestamp])), + rabbit_log:info("Saving persister log in ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +maybe_take_snapshot(Force, State = #pstate{entry_count = EntryCount, + log_handle = LH, + snapshot = Snapshot}) + when Force orelse EntryCount >= ?MAX_WRAP_ENTRIES -> + ok = take_snapshot(LH, Snapshot), + State#pstate{entry_count = 0}; +maybe_take_snapshot(_Force, State) -> + State. + +later_ms(DeltaMilliSec) -> + {MegaSec, Sec, MicroSec} = now(), + %% Note: not normalised. Unimportant for this application. + {MegaSec, Sec, MicroSec + (DeltaMilliSec * 1000)}. + +%% Result = B - A, more or less +time_diff({B1, B2, B3}, {A1, A2, A3}) -> + (B1 - A1) * 1000000 + (B2 - A2) + (B3 - A3) / 1000000.0 . + +compute_deadline(TimerDelay, infinity) -> + later_ms(TimerDelay); +compute_deadline(_TimerDelay, ExistingDeadline) -> + ExistingDeadline. + +compute_timeout(infinity) -> + ?HIBERNATE_AFTER; +compute_timeout(Deadline) -> + DeltaMilliSec = time_diff(Deadline, now()) * 1000.0, + if + DeltaMilliSec =< 1 -> + 0; + true -> + round(DeltaMilliSec) + end. + +do_noreply(State = #pstate{deadline = Deadline}) -> + {noreply, State, compute_timeout(Deadline)}. + +do_reply(Reply, State = #pstate{deadline = Deadline}) -> + {reply, Reply, State, compute_timeout(Deadline)}. + +flush(State) -> flush(false, State). + +flush(ForceSnapshot, State = #pstate{pending_logs = PendingLogs, + pending_replies = Waiting, + log_handle = LogHandle}) -> + State1 = if PendingLogs /= [] -> + disk_log:alog(LogHandle, lists:reverse(PendingLogs)), + State#pstate{entry_count = State#pstate.entry_count + 1}; + true -> + State + end, + State2 = maybe_take_snapshot(ForceSnapshot, State1), + if Waiting /= [] -> + ok = disk_log:sync(LogHandle), + lists:foreach(fun (From) -> gen_server:reply(From, ok) end, + Waiting); + true -> + ok + end, + State2#pstate{deadline = infinity, + pending_logs = [], + pending_replies = []}. + +current_snapshot(_Snapshot = #psnapshot{serial = Serial, + transactions= Ts, + messages = Messages, + queues = Queues}) -> + %% Avoid infinite growth of the table by removing messages not + %% bound to a queue anymore + prune_table(Messages, ets:foldl( + fun ({{_QName, PKey}, _Delivered}, S) -> + sets:add_element(PKey, S) + end, sets:new(), Queues)), + InnerSnapshot = {{serial, Serial}, + {txns, Ts}, + {messages, ets:tab2list(Messages)}, + {queues, ets:tab2list(Queues)}}, + ?LOGDEBUG("Inner snapshot: ~p~n", [InnerSnapshot]), + {persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + term_to_binary(InnerSnapshot)}. + +prune_table(Tab, Keys) -> + true = ets:safe_fixtable(Tab, true), + ok = prune_table(Tab, Keys, ets:first(Tab)), + true = ets:safe_fixtable(Tab, false). + +prune_table(_Tab, _Keys, '$end_of_table') -> ok; +prune_table(Tab, Keys, Key) -> + case sets:is_element(Key, Keys) of + true -> ok; + false -> ets:delete(Tab, Key) + end, + prune_table(Tab, Keys, ets:next(Tab, Key)). + +internal_load_snapshot(LogHandle, + Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + {K, [Loaded_Snapshot | Items]} = disk_log:chunk(LogHandle, start), + case check_version(Loaded_Snapshot) of + {ok, StateBin} -> + {{serial, Serial}, {txns, Ts}, {messages, Ms}, {queues, Qs}} = + binary_to_term(StateBin), + true = ets:insert(Messages, Ms), + true = ets:insert(Queues, Qs), + Snapshot1 = replay(Items, LogHandle, K, + Snapshot#psnapshot{ + serial = Serial, + transactions = Ts}), + Snapshot2 = requeue_messages(Snapshot1), + %% uncompleted transactions are discarded - this is TRTTD + %% since we only get into this code on node restart, so + %% any uncompleted transactions will have been aborted. + {ok, Snapshot2#psnapshot{transactions = dict:new()}}; + {error, Reason} -> {{error, Reason}, Snapshot} + end. + +check_version({persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + StateBin}) -> + {ok, StateBin}; +check_version({persist_snapshot, {vsn, Vsn}, _StateBin}) -> + {error, {unsupported_persister_log_format, Vsn}}; +check_version(_Other) -> + {error, unrecognised_persister_log_format}. + +requeue_messages(Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + Work = ets:foldl(fun accumulate_requeues/2, dict:new(), Queues), + %% unstable parallel map, because order doesn't matter + L = lists:append( + rabbit_misc:upmap( + %% we do as much work as possible in spawned worker + %% processes, but we need to make sure the ets:inserts are + %% performed in self() + fun ({QName, Requeues}) -> + requeue(QName, Requeues, Messages) + end, dict:to_list(Work))), + NewMessages = [{K, M} || {{_Q, K}, M, _D} <- L], + NewQueues = [{QK, D} || {QK, _M, D} <- L], + ets:delete_all_objects(Messages), + ets:delete_all_objects(Queues), + true = ets:insert(Messages, NewMessages), + true = ets:insert(Queues, NewQueues), + %% contains the mutated messages and queues tables + Snapshot. + +accumulate_requeues({{QName, PKey}, Delivered}, Acc) -> + Requeue = {PKey, Delivered}, + dict:update(QName, + fun (Requeues) -> [Requeue | Requeues] end, + [Requeue], + Acc). + +requeue(QName, Requeues, Messages) -> + case rabbit_amqqueue:lookup(QName) of + {ok, #amqqueue{pid = QPid}} -> + RequeueMessages = + [{{QName, PKey}, Message, Delivered} || + {PKey, Delivered} <- Requeues, + {_, Message} <- ets:lookup(Messages, PKey)], + rabbit_amqqueue:redeliver( + QPid, + %% Messages published by the same process receive + %% persistence keys that are monotonically + %% increasing. Since message ordering is defined on a + %% per-channel basis, and channels are bound to specific + %% processes, sorting the list does provide the correct + %% ordering properties. + [{Message, Delivered} || {_, Message, Delivered} <- + lists:sort(RequeueMessages)]), + RequeueMessages; + {error, not_found} -> + [] + end. + +replay([], LogHandle, K, Snapshot) -> + case disk_log:chunk(LogHandle, K) of + {K1, Items} -> + replay(Items, LogHandle, K1, Snapshot); + {K1, Items, Badbytes} -> + rabbit_log:warning("~p bad bytes recovering persister log~n", + [Badbytes]), + replay(Items, LogHandle, K1, Snapshot); + eof -> Snapshot + end; +replay([Item | Items], LogHandle, K, Snapshot) -> + NewSnapshot = internal_integrate_messages(Item, Snapshot), + replay(Items, LogHandle, K, NewSnapshot). + +internal_integrate_messages(Items, Snapshot) -> + lists:foldl(fun (Item, Snap) -> internal_integrate1(Item, Snap) end, + Snapshot, Items). + +internal_integrate1({extend_transaction, Key, MessageList}, + Snapshot = #psnapshot {transactions = Transactions}) -> + NewTransactions = + dict:update(Key, + fun (MessageLists) -> [MessageList | MessageLists] end, + [MessageList], + Transactions), + Snapshot#psnapshot{transactions = NewTransactions}; +internal_integrate1({rollback_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions}) -> + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; +internal_integrate1({commit_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions, + messages = Messages, + queues = Queues}) -> + case dict:find(Key, Transactions) of + {ok, MessageLists} -> + ?LOGDEBUG("persist committing txn ~p~n", [Key]), + lists:foreach(fun (ML) -> perform_work(ML, Messages, Queues) end, + lists:reverse(MessageLists)), + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; + error -> + Snapshot + end; +internal_integrate1({dirty_work, MessageList}, + Snapshot = #psnapshot {messages = Messages, + queues = Queues}) -> + perform_work(MessageList, Messages, Queues), + Snapshot. + +perform_work(MessageList, Messages, Queues) -> + lists:foreach( + fun (Item) -> perform_work_item(Item, Messages, Queues) end, + MessageList). + +perform_work_item({publish, Message, QK = {_QName, PKey}}, Messages, Queues) -> + ets:insert(Messages, {PKey, Message}), + ets:insert(Queues, {QK, false}); + +perform_work_item({tied, QK}, _Messages, Queues) -> + ets:insert(Queues, {QK, false}); + +perform_work_item({deliver, QK}, _Messages, Queues) -> + %% from R12B-2 onward we could use ets:update_element/3 here + ets:delete(Queues, QK), + ets:insert(Queues, {QK, true}); + +perform_work_item({ack, QK}, _Messages, Queues) -> + ets:delete(Queues, QK). diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl deleted file mode 100644 index 5a6c8b39..00000000 --- a/src/rabbit_queue_mode_manager.erl +++ /dev/null @@ -1,496 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_mode_manager). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([register/5, report_memory/3, report_memory/5, info/0, - pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). - --define(TOTAL_TOKENS, 10000000). --define(ACTIVITY_THRESHOLD, 25). - --define(SERVER, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(register/5 :: (pid(), boolean(), atom(), atom(), list()) -> 'ok'). --spec(report_memory/3 :: (pid(), non_neg_integer(), bool()) -> 'ok'). --spec(report_memory/5 :: (pid(), non_neg_integer(), - (non_neg_integer() | 'undefined'), - (non_neg_integer() | 'undefined'), bool()) -> - 'ok'). --spec(pin_to_disk/1 :: (pid()) -> 'ok'). --spec(unpin_from_disk/1 :: (pid()) -> 'ok'). --spec(info/0 :: () -> [{atom(), any()}]). --spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). - --endif. - --record(state, { available_tokens, - mixed_queues, - callbacks, - tokens_per_byte, - lowrate, - hibernate, - disk_mode_pins, - unevictable, - alarmed - }). - -%% Token-credit based memory management - -%% Start off by working out the amount of memory available in the -%% system (RAM). Then, work out how many tokens each byte corresponds -%% to. This is the tokens_per_byte field. When a process registers, it -%% must provide an M-F-A triple to a function that needs one further -%% argument, which is the new mode. This will either be 'mixed' or -%% 'disk'. -%% -%% Processes then report their own memory usage, in bytes, and the -%% manager takes care of the rest. -%% -%% There are a finite number of tokens in the system. These are -%% allocated to processes as they are requested. We keep track of -%% processes which have hibernated, and processes that are doing only -%% a low rate of work. When a request for memory can't be satisfied, -%% we try and evict processes first from the hibernated group, and -%% then from the lowrate group. The hibernated group is a simple -%% queue, and so is implicitly sorted by the order in which processes -%% were added to the queue. This means that when removing from the -%% queue, we hibernate the sleepiest pid first. The lowrate group is a -%% priority queue, where the priority is the truncated log (base e) of -%% the amount of memory allocated. Thus when we remove from the queue, -%% we first remove the queue from the highest bucket. -%% -%% If the request still can't be satisfied after evicting to disk -%% everyone from those two groups (and note that we check first -%% whether or not freeing them would make available enough tokens to -%% satisfy the request rather than just sending all those queues to -%% disk and then going "whoops, didn't help after all"), then we send -%% the requesting process to disk. When a queue registers, it can -%% declare itself "unevictable". If a queue is unevictable then it -%% will not be sent to disk as a result of other processes requesting -%% more memory. However, if it itself is requesting more memory and -%% that request can't be satisfied then it is still sent to disk as -%% before. This feature is only used by the disk_queue, because if the -%% disk queue is not being used, and hibernates, and then memory -%% pressure gets tight, the disk_queue would typically be one of the -%% first processes to get sent to disk, which cripples -%% performance. Thus by setting it unevictable, it is only possible -%% for the disk_queue to be sent to disk when it is active and -%% attempting to increase its memory allocation. -%% -%% If a process has been sent to disk, it continues making -%% requests. As soon as a request can be satisfied (and this can -%% include sending other processes to disk in the way described -%% above), it will be told to come back into mixed mode. We do not -%% keep any information about queues in disk mode. -%% -%% Note that the lowrate and hibernate groups can get very out of -%% date. This is fine, and somewhat unavoidable given the absence of -%% useful APIs for queues. Thus we allow them to get out of date -%% (processes will be left in there when they change groups, -%% duplicates can appear, dead processes are not pruned etc etc etc), -%% and when we go through the groups, summing up their amount of -%% memory, we tidy up at that point. -%% -%% A process which is not evicted to disk, and is requesting a smaller -%% amount of RAM than its last request will always be satisfied. A -%% mixed-mode process that is busy but consuming an unchanging amount -%% of RAM will never be sent to disk. The disk_queue is also managed -%% in the same way. This means that a queue that has gone back to -%% being mixed after being in disk mode now has its messages counted -%% twice as they are counted both in the request made by the queue -%% (even though they may not yet be in RAM (though see the -%% prefetcher)) and also by the disk_queue. Thus the amount of -%% available RAM must be higher when going disk -> mixed than when -%% going mixed -> disk. This is fairly sensible as it reduces the risk -%% of any oscillations occurring. -%% -%% The queue process deliberately reports 4 times its estimated RAM -%% usage, and the disk_queue 2.5 times. In practise, this seems to -%% work well. Note that we are deliberately running out of tokes a -%% little early because of the fact that the mixed -> disk transition -%% can transiently eat a lot of memory and take some time (flushing a -%% few million messages to disk is never going to be instantaneous). - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -register(Pid, Unevictable, Module, Function, Args) -> - gen_server2:cast(?SERVER, {register, Pid, Unevictable, - Module, Function, Args}). - -pin_to_disk(Pid) -> - gen_server2:call(?SERVER, {pin_to_disk, Pid}). - -unpin_from_disk(Pid) -> - gen_server2:call(?SERVER, {unpin_from_disk, Pid}). - -report_memory(Pid, Memory, Hibernating) -> - report_memory(Pid, Memory, undefined, undefined, Hibernating). - -report_memory(Pid, Memory, Gain, Loss, Hibernating) -> - gen_server2:cast(?SERVER, - {report_memory, Pid, Memory, Gain, Loss, Hibernating}). - -info() -> - gen_server2:call(?SERVER, info). - -conserve_memory(_Pid, Conserve) -> - gen_server2:pcast(?SERVER, 9, {conserve_memory, Conserve}). - -init([]) -> - process_flag(trap_exit, true), - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - {MemTotal, MemUsed, _BigProc} = memsup:get_memory_data(), - MemAvail = MemTotal - MemUsed, - TPB = if MemAvail == 0 -> 0; - true -> ?TOTAL_TOKENS / MemAvail - end, - {ok, #state { available_tokens = ?TOTAL_TOKENS, - mixed_queues = dict:new(), - callbacks = dict:new(), - tokens_per_byte = TPB, - lowrate = priority_queue:new(), - hibernate = queue:new(), - disk_mode_pins = sets:new(), - unevictable = sets:new(), - alarmed = false - }}. - -handle_call({pin_to_disk, Pid}, _From, - State = #state { mixed_queues = Mixed, - callbacks = Callbacks, - available_tokens = Avail, - disk_mode_pins = Pins }) -> - {Res, State1} = - case sets:is_element(Pid, Pins) of - true -> {ok, State}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - ok = set_queue_mode(Callbacks, Pid, disk), - {ok, State #state { mixed_queues = - dict:erase(Pid, Mixed), - available_tokens = Avail + OAlloc, - disk_mode_pins = - sets:add_element(Pid, Pins) - }}; - disk -> - {ok, State #state { disk_mode_pins = - sets:add_element(Pid, Pins) }} - end - end, - {reply, Res, State1}; - -handle_call({unpin_from_disk, Pid}, _From, - State = #state { disk_mode_pins = Pins }) -> - {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; - -handle_call(info, _From, State) -> - State1 = #state { available_tokens = Avail, - mixed_queues = Mixed, - lowrate = Lazy, - hibernate = Sleepy, - disk_mode_pins = Pins, - unevictable = Unevictable } = - free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying - {reply, [{ available_tokens, Avail }, - { mixed_queues, dict:to_list(Mixed) }, - { lowrate_queues, priority_queue:to_list(Lazy) }, - { hibernated_queues, queue:to_list(Sleepy) }, - { queues_pinned_to_disk, sets:to_list(Pins) }, - { unevictable_queues, sets:to_list(Unevictable) }], State1}. - - -handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, - State = #state { mixed_queues = Mixed, - available_tokens = Avail, - callbacks = Callbacks, - disk_mode_pins = Pins, - tokens_per_byte = TPB, - alarmed = Alarmed }) -> - Req = rabbit_misc:ceil(TPB * Memory), - LowRate = case {BytesGained, BytesLost} of - {undefined, _} -> false; - {_, undefined} -> false; - {G, L} -> G < ?ACTIVITY_THRESHOLD andalso - L < ?ACTIVITY_THRESHOLD - end, - MixedActivity = if Hibernating -> hibernate; - LowRate -> lowrate; - true -> active - end, - {StateN = #state { lowrate = Lazy, hibernate = Sleepy }, ActivityNew} = - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - Avail1 = Avail + OAlloc, - State1 = - #state { available_tokens = Avail2, mixed_queues = Mixed1 } - = free_upto(Pid, Req, - State #state { available_tokens = Avail1 }), - case Req > Avail2 of - true -> %% nowt we can do, send to disk - ok = set_queue_mode(Callbacks, Pid, disk), - {State1 #state { mixed_queues = - dict:erase(Pid, Mixed1) }, disk}; - false -> %% keep mixed - {State1 #state - { mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail2 - Req }, - MixedActivity} - end; - disk -> - case sets:is_element(Pid, Pins) orelse Alarmed of - true -> - {State, disk}; - false -> - State1 = #state { available_tokens = Avail1, - mixed_queues = Mixed1 } = - free_upto(Pid, Req, State), - case Req > Avail1 orelse Hibernating orelse LowRate of - true -> - %% not enough space, or no compelling - %% reason, so stay as disk - {State1, disk}; - false -> %% can go to mixed mode - set_queue_mode(Callbacks, Pid, mixed), - {State1 #state { - mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail1 - Req }, - MixedActivity} - end - end - end, - StateN1 = - case ActivityNew of - active -> StateN; - disk -> StateN; - lowrate -> - StateN #state { lowrate = add_to_lowrate(Pid, Req, Lazy) }; - hibernate -> - StateN #state { hibernate = queue:in(Pid, Sleepy) } - end, - {noreply, StateN1}; - -handle_cast({register, Pid, IsUnevictable, Module, Function, Args}, - State = #state { callbacks = Callbacks, - unevictable = Unevictable }) -> - _MRef = erlang:monitor(process, Pid), - Unevictable1 = case IsUnevictable of - true -> sets:add_element(Pid, Unevictable); - false -> Unevictable - end, - {noreply, State #state { callbacks = dict:store - (Pid, {Module, Function, Args}, Callbacks), - unevictable = Unevictable1 - }}; - -handle_cast({conserve_memory, Conserve}, State) -> - {noreply, State #state { alarmed = Conserve }}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #state { available_tokens = Avail, - mixed_queues = Mixed }) -> - State1 = case find_queue(Pid, Mixed) of - disk -> - State; - {mixed, {Alloc, _Activity}} -> - State #state { available_tokens = Avail + Alloc, - mixed_queues = dict:erase(Pid, Mixed) } - end, - {noreply, State1}; -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -add_to_lowrate(Pid, Alloc, Lazy) -> - Bucket = if Alloc == 0 -> 0; %% can't take log(0) - true -> trunc(math:log(Alloc)) %% log base e - end, - priority_queue:in({Pid, Bucket, Alloc}, Bucket, Lazy). - -find_queue(Pid, Mixed) -> - case dict:find(Pid, Mixed) of - {ok, Value} -> {mixed, Value}; - error -> disk - end. - -set_queue_mode(Callbacks, Pid, Mode) -> - {Module, Function, Args} = dict:fetch(Pid, Callbacks), - erlang:apply(Module, Function, Args ++ [Mode]). - -tidy_and_sum_lazy(IgnorePids, Lazy, Mixed) -> - tidy_and_sum(lowrate, Mixed, - fun (Lazy1) -> - case priority_queue:out(Lazy1) of - {empty, Lazy2} -> - {empty, Lazy2}; - {{value, {Pid, _Bucket, _Alloc}}, Lazy2} -> - {{value, Pid}, Lazy2} - end - end, fun add_to_lowrate/3, IgnorePids, Lazy, - priority_queue:new(), 0). - -tidy_and_sum_sleepy(IgnorePids, Sleepy, Mixed) -> - tidy_and_sum(hibernate, Mixed, fun queue:out/1, - fun (Pid, _Alloc, Queue) -> queue:in(Pid, Queue) end, - IgnorePids, Sleepy, queue:new(), 0). - -tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, DupCheckSet, - CataInit, AnaInit, AllocAcc) -> - case Catamorphism(CataInit) of - {empty, _CataInit} -> {AnaInit, AllocAcc}; - {{value, Pid}, CataInit1} -> - {DupCheckSet1, AnaInit1, AllocAcc1} = - case sets:is_element(Pid, DupCheckSet) of - true -> - {DupCheckSet, AnaInit, AllocAcc}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {Alloc, AtomExpected}} -> - {sets:add_element(Pid, DupCheckSet), - Anamorphism(Pid, Alloc, AnaInit), - Alloc + AllocAcc}; - _ -> - {DupCheckSet, AnaInit, AllocAcc} - end - end, - tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, - DupCheckSet1, CataInit1, AnaInit1, AllocAcc1) - end. - -free_upto_lazy(IgnorePids, Callbacks, Lazy, Mixed, Req) -> - free_from( - Callbacks, - fun(_Mixed, Lazy1, LazyAcc) -> - case priority_queue:out(Lazy1) of - {empty, _Lazy2} -> - empty; - {{value, V = {Pid, Bucket, Alloc}}, Lazy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Lazy2, - priority_queue:in(V, Bucket, LazyAcc)}; - false -> {value, Lazy2, Pid, Alloc} - end - end - end, fun priority_queue:join/2, Mixed, Lazy, priority_queue:new(), Req). - -free_upto_sleepy(IgnorePids, Callbacks, Sleepy, Mixed, Req) -> - free_from(Callbacks, - fun(Mixed1, Sleepy1, SleepyAcc) -> - case queue:out(Sleepy1) of - {empty, _Sleepy2} -> - empty; - {{value, Pid}, Sleepy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Sleepy2, - queue:in(Pid, SleepyAcc)}; - false -> {Alloc, hibernate} = - dict:fetch(Pid, Mixed1), - {value, Sleepy2, Pid, Alloc} - end - end - end, fun queue:join/2, Mixed, Sleepy, queue:new(), Req). - -free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit, AnaInit, Req) -> - case Hylomorphism(Mixed, CataInit, AnaInit) of - empty -> - {AnaInit, Mixed, Req}; - {skip, CataInit1, AnaInit1} -> - free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit1, - AnaInit1, Req); - {value, CataInit1, Pid, Alloc} -> - Mixed1 = dict:erase(Pid, Mixed), - ok = set_queue_mode(Callbacks, Pid, disk), - case Req > Alloc of - true -> free_from(Callbacks, Hylomorphism, BaseCase, Mixed1, - CataInit1, AnaInit, Req - Alloc); - false -> {BaseCase(CataInit1, AnaInit), Mixed1, Req - Alloc} - end - end. - -free_upto(Pid, Req, State = #state { available_tokens = Avail, - mixed_queues = Mixed, - callbacks = Callbacks, - lowrate = Lazy, - hibernate = Sleepy, - unevictable = Unevictable }) - when Req > Avail -> - Unevictable1 = sets:add_element(Pid, Unevictable), - {Sleepy1, SleepySum} = tidy_and_sum_sleepy(Unevictable1, Sleepy, Mixed), - case Req > Avail + SleepySum of - true -> %% not enough in sleepy, have a look in lazy too - {Lazy1, LazySum} = tidy_and_sum_lazy(Unevictable1, Lazy, Mixed), - case Req > Avail + SleepySum + LazySum of - true -> %% can't free enough, just return tidied state - State #state { lowrate = Lazy1, hibernate = Sleepy1 }; - false -> %% need to free all of sleepy, and some of lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, - Sleepy1, Mixed, Req), - {Lazy2, Mixed2, ReqRem1} = - free_upto_lazy(Unevictable1, Callbacks, - Lazy1, Mixed1, ReqRem), - %% ReqRem1 will be <= 0 because it's - %% likely we'll have freed more than we - %% need, thus Req - ReqRem1 is total freed - State #state { available_tokens = Avail + (Req - ReqRem1), - mixed_queues = Mixed2, lowrate = Lazy2, - hibernate = Sleepy2 } - end; - false -> %% enough available in sleepy, don't touch lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, Sleepy1, Mixed, Req), - State #state { available_tokens = Avail + (Req - ReqRem), - mixed_queues = Mixed1, hibernate = Sleepy2 } - end; -free_upto(_Pid, _Req, State) -> - State. diff --git a/src/rabbit_queue_prefetcher.erl b/src/rabbit_queue_prefetcher.erl deleted file mode 100644 index c847848d..00000000 --- a/src/rabbit_queue_prefetcher.erl +++ /dev/null @@ -1,258 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_prefetcher). - --behaviour(gen_server2). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([publish/2, drain/1, drain_and_stop/1]). - --include("rabbit.hrl"). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(pstate, - { msg_buf, - buf_length, - target_count, - fetched_count, - queue, - queue_mref - }). - -%% The design of the prefetcher is based on the following: -%% -%% a) It must issue low-priority (-ve) requests to the disk queue for -%% the next message. -%% b) If the prefetcher is empty and the amqqueue_process -%% (mixed_queue) asks it for a message, it must exit immediately, -%% telling the mixed_queue that it is empty so that the mixed_queue -%% can then take the more efficient path and communicate with the -%% disk_queue directly -%% c) No message can accidentally be delivered twice, or lost -%% d) The prefetcher must only cause load when the disk_queue is -%% otherwise idle, and must not worsen performance in a loaded -%% situation. -%% -%% As such, it's a little tricky. It must never issue a call to the -%% disk_queue - if it did, then that could potentially block, thus -%% causing pain to the mixed_queue that needs fast answers as to -%% whether the prefetcher has prefetched content or not. It behaves as -%% follows: -%% -%% 1) disk_queue:prefetch(Q) -%% This is a low priority cast -%% -%% 2) The disk_queue may pick up the cast, at which point it'll read -%% the next message and invoke prefetcher:publish(Msg) - normal -%% priority cast. Note that in the mean time, the mixed_queue could -%% have come along, found the prefetcher empty, asked it to -%% exit. This means the effective "reply" from the disk_queue will -%% go no where. As a result, the disk_queue must perform no -%% modification to the status of the message *or the queue* - do -%% not mark the message delivered, and do not advance the queue. If -%% it did advance the queue and the msg was then lost, then the -%% queue would have lost a msg that the mixed_queue would not pick -%% up. -%% -%% 3) The prefetcher hopefully receives the call from -%% prefetcher:publish(Msg). It replies immediately, and then adds -%% to its internal queue. A cast is not sufficient here because the -%% mixed_queue could come along, drain the prefetcher, thus -%% catching the msg just sent by the disk_queue and then call -%% disk_queue:deliver(Q) which is normal priority call, which could -%% overtake a reply cast from the prefetcher to the disk queue, -%% which would result in the same message being delivered -%% twice. Thus when the disk_queue calls prefetcher:publish(Msg), -%% it is briefly blocked. However, a) the prefetcher replies -%% immediately, and b) the prefetcher should never have more than -%% one item in its mailbox anyway, so this should not cause a -%% problem to the disk_queue. -%% -%% 4) The disk_queue receives the reply, marks the msg at the head of -%% the queue Q as delivered, and advances the Q to the next msg. -%% -%% 5) If the prefetcher has not met its target then it goes back to -%% 1). Otherwise it just sits and waits for the mixed_queue to -%% drain it. -%% -%% Now at some point, the mixed_queue will come along and will call -%% prefetcher:drain() - normal priority call. The prefetcher then -%% replies with its internal queue and the length of that queue. If -%% the prefetch target was reached, the prefetcher stops normally at -%% this point. If it hasn't been reached, then the prefetcher -%% continues to hang around (it almost certainly has issued a -%% disk_queue:prefetch(Q) cast and is waiting for a reply from the -%% disk_queue). -%% -%% If the mixed_queue calls prefetcher:drain() and the prefetcher's -%% internal queue is empty then the prefetcher replies with 'empty', -%% and it exits. This informs the mixed_queue that it should from now -%% on talk directly with the disk_queue and not via the -%% prefetcher. This is more efficient and the mixed_queue will use -%% normal priority blocking calls to the disk_queue and thus get -%% better service that way. -%% -%% The prefetcher may at this point have issued a -%% disk_queue:prefetch(Q) cast which has not yet been picked up by the -%% disk_queue. This msg won't go away and the disk_queue will -%% eventually find it. However, when it does, it'll simply read the -%% next message from the queue (which could now be empty), possibly -%% populate the cache (no harm done) and try and call -%% prefetcher:publish(Msg) which will result in an error, which the -%% disk_queue catches, as the publish call is to a non-existant -%% process. However, the state of the queue and the state of the -%% message has not been altered so the mixed_queue will be able to -%% fetch this message as if it had never been prefetched. -%% -%% The only point at which the queue is advanced and the message -%% marked as delivered is when the prefetcher replies to the publish -%% call. At this point the message has been received by the prefetcher -%% and so we guarantee it will be passed to the mixed_queue when the -%% mixed_queue tries to drain the prefetcher. We must therefore ensure -%% that this msg can't also be delivered to the mixed_queue directly -%% by the disk_queue through the mixed_queue calling -%% disk_queue:deliver(Q) which is why the prefetcher:publish function -%% is a call and not a cast, thus blocking the disk_queue. -%% -%% Finally, the prefetcher is only created when the mixed_queue is -%% operating in mixed mode and it sees that the next N messages are -%% all on disk, and the queue process is about to hibernate. During -%% this phase, the mixed_queue can be asked to go back to disk_only -%% mode. When this happens, it calls prefetcher:drain_and_stop() which -%% behaves like two consecutive calls to drain() - i.e. replies with -%% all prefetched messages and causes the prefetcher to exit. -%% -%% Note there is a flaw here in that we end up marking messages which -%% have come through the prefetcher as delivered even if they don't -%% get delivered (e.g. prefetcher fetches them, then broker -%% dies). However, the alternative is that the mixed_queue must do a -%% call to the disk_queue when it effectively passes them out to the -%% rabbit_writer. This would hurt performance, and even at that stage, -%% we have no guarantee that the message will really go out of the -%% socket. What we do still have is that messages which have the -%% redelivered bit set false really are guaranteed to have not been -%% delivered already. In theory, it's possible that the disk_queue -%% calls prefetcher:publish, blocks waiting for the reply. The -%% prefetcher grabs the message, is drained, the message goes out of -%% the socket and is delivered. The broker then crashes before the -%% disk_queue processes the reply from the prefetcher, thus the fact -%% the message has been delivered is not recorded. However, this can -%% only affect a single message at a time. I.e. there is a tiny chance -%% that the first message delivered on queue recovery that has the -%% redelivery bit set false, has in fact been delivered before. - -start_link(Queue, Count) -> - gen_server2:start_link(?MODULE, [Queue, Count, self()], []). - -publish(Prefetcher, Obj = { #basic_message {}, _Size, _IsDelivered, - _AckTag, _Remaining }) -> - gen_server2:call(Prefetcher, {publish, Obj}, infinity); -publish(Prefetcher, empty) -> - gen_server2:call(Prefetcher, publish_empty, infinity). - -drain(Prefetcher) -> - gen_server2:call(Prefetcher, drain, infinity). - -drain_and_stop(Prefetcher) -> - gen_server2:call(Prefetcher, drain_and_stop, infinity). - -init([Q, Count, QPid]) -> - %% link isn't enough because the signal will not appear if the - %% queue exits normally. Thus have to use monitor. - MRef = erlang:monitor(process, QPid), - State = #pstate { msg_buf = queue:new(), - buf_length = 0, - target_count = Count, - fetched_count = 0, - queue = Q, - queue_mref = MRef - }, - ok = rabbit_disk_queue:prefetch(Q), - {ok, State, infinity, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({publish, { Msg = #basic_message {}, - _Size, IsDelivered, AckTag, _Remaining }}, - DiskQueue, State = - #pstate { fetched_count = Fetched, target_count = Target, - msg_buf = MsgBuf, buf_length = Length, queue = Q - }) -> - gen_server2:reply(DiskQueue, ok), - Timeout = if Fetched + 1 == Target -> hibernate; - true -> ok = rabbit_disk_queue:prefetch(Q), - infinity - end, - MsgBuf1 = queue:in({Msg, IsDelivered, AckTag}, MsgBuf), - {noreply, State #pstate { fetched_count = Fetched + 1, - buf_length = Length + 1, - msg_buf = MsgBuf1 }, Timeout}; -handle_call(publish_empty, _From, State) -> - %% Very odd. This could happen if the queue is deleted or purged - %% and the mixed queue fails to shut us down. - {reply, ok, State, hibernate}; -handle_call(drain, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain, _From, State = #pstate { fetched_count = Count, - target_count = Count, - msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length, finished}, State}; -handle_call(drain, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {reply, {MsgBuf, Length, continuing}, - State #pstate { msg_buf = queue:new(), buf_length = 0 }, infinity}; -handle_call(drain_and_stop, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain_and_stop, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length}, State}. - -handle_cast(Msg, State) -> - exit({unexpected_message_cast_to_prefetcher, Msg, State}). - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #pstate { queue_mref = MRef }) -> - %% this is the amqqueue_process going down, so we should go down - %% too - {stop, normal, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index f6d42e7c..fbb2b756 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -31,9 +31,7 @@ -module(rabbit_tests). --compile(export_all). - --export([all_tests/0, test_parsing/0, test_disk_queue/0]). +-export([all_tests/0, test_parsing/0]). %% Exported so the hook mechanism can call back -export([handle_hook/3, bad_handle_hook/3, extra_arg_hook/5]). @@ -50,7 +48,6 @@ test_content_prop_roundtrip(Datum, Binary) -> Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion all_tests() -> - passed = test_disk_queue(), passed = test_priority_queue(), passed = test_parsing(), passed = test_topic_matching(), @@ -447,17 +444,19 @@ test_cluster_management() -> end, ClusteringSequence), - %% convert a disk node into a ram node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(start_app, []), ok = control_action(stop_app, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), - %% join a non-existing cluster as a ram node + %% attempt to join a non-existing cluster as a ram node ok = control_action(reset, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {unable_to_contact_cluster_nodes, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), SecondaryNode = rabbit_misc:localnode(hare), case net_adm:ping(SecondaryNode) of @@ -473,12 +472,11 @@ test_cluster_management2(SecondaryNode) -> NodeS = atom_to_list(node()), SecondaryNodeS = atom_to_list(SecondaryNode), - %% make a disk node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), + {error, {unable_to_join_cluster, _, _}} = + control_action(cluster, [SecondaryNodeS]), %% join cluster as a ram node ok = control_action(reset, []), @@ -491,21 +489,21 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% join non-existing cluster as a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to join non-existing cluster as a ram node + {error, _} = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), + %% turn ram node into disk node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS, NodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% convert a disk node into a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to convert a disk node into a ram node + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn a disk node into a ram node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), @@ -780,503 +778,3 @@ bad_handle_hook(_, _, _) -> bad:bad(). extra_arg_hook(Hookname, Handler, Args, Extra1, Extra2) -> handle_hook(Hookname, Handler, {Args, Extra1, Extra2}). - -test_disk_queue() -> - rdq_stop(), - rdq_virgin(), - passed = rdq_stress_gc(5000), - passed = rdq_test_startup_with_queue_gaps(), - passed = rdq_test_redeliver(), - passed = rdq_test_purge(), - passed = rdq_test_mixed_queue_modes(), - passed = rdq_test_mode_conversion_mid_txn(), - passed = rdq_test_disk_queue_modes(), - rdq_virgin(), - passed. - -benchmark_disk_queue() -> - rdq_stop(), - % unicode chars are supported properly from r13 onwards - io:format("Msg Count\t| Msg Size\t| Queue Count\t| Startup mu s\t| Publish mu s\t| Pub mu s/msg\t| Pub mu s/byte\t| Deliver mu s\t| Del mu s/msg\t| Del mu s/byte~n", []), - [begin rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSize), - timer:sleep(1000) end || % 1000 milliseconds - MsgSize <- [512, 8192, 32768, 131072], - Qs <- [[1], lists:seq(1,10)], %, lists:seq(1,100), lists:seq(1,1000)], - MsgCount <- [1024, 4096, 16384] - ], - rdq_virgin(), - ok = control_action(stop_app, []), - ok = control_action(start_app, []), - passed. - -rdq_message(MsgId, MsgBody, IsPersistent) -> - rabbit_basic:message(x, <<>>, [], MsgBody, MsgId, IsPersistent). - -rdq_match_message( - #basic_message { guid = MsgId, content = - #content { payload_fragments_rev = [MsgBody] }}, - MsgId, MsgBody, Size) when size(MsgBody) =:= Size -> - ok. - -rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSizeBytes) -> - Startup = rdq_virgin(), - rdq_start(), - QCount = length(Qs), - Msg = <<0:(8*MsgSizeBytes)>>, - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - {Publish, ok} = - timer:tc(?MODULE, rdq_time_commands, - [[fun() -> [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) - || N <- List, _ <- Qs] end, - fun() -> [ok = rabbit_disk_queue:tx_commit(Q, CommitList, []) - || Q <- Qs] end - ]]), - {Deliver, ok} = - timer:tc( - ?MODULE, rdq_time_commands, - [[fun() -> [begin SeqIds = - [begin - Remaining = MsgCount - N, - {Message, _TSize, false, SeqId, - Remaining} = rabbit_disk_queue:deliver(Q), - ok = rdq_match_message(Message, N, Msg, MsgSizeBytes), - SeqId - end || N <- List], - ok = rabbit_disk_queue:tx_commit(Q, [], SeqIds) - end || Q <- Qs] - end]]), - io:format(" ~15.10B| ~14.10B| ~14.10B| ~14.1f| ~14.1f| ~14.6f| ~14.10f| ~14.1f| ~14.6f| ~14.10f~n", - [MsgCount, MsgSizeBytes, QCount, float(Startup), - float(Publish), (Publish / (MsgCount * QCount)), - (Publish / (MsgCount * QCount * MsgSizeBytes)), - float(Deliver), (Deliver / (MsgCount * QCount)), - (Deliver / (MsgCount * QCount * MsgSizeBytes))]), - rdq_stop(). - -% we know each file is going to be 1024*1024*10 bytes in size (10MB), -% so make sure we have several files, and then keep punching holes in -% a reasonably sensible way. -rdq_stress_gc(MsgCount) -> - rdq_virgin(), - rdq_start(), - MsgSizeBytes = 256*1024, - Msg = <<0:(8*MsgSizeBytes)>>, % 256KB - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- List], - rabbit_disk_queue:tx_commit(q, CommitList, []), - StartChunk = round(MsgCount / 20), % 5% - AckList = - lists:foldl( - fun (E, Acc) -> - case lists:member(E, Acc) of - true -> Acc; - false -> [E|Acc] - end - end, [], lists:flatten( - lists:reverse( - [ lists:seq(N, MsgCount, N) - || N <- lists:seq(1, round(MsgCount / 2), 1) - ]))), - {Start, End} = lists:split(StartChunk, AckList), - AckList2 = End ++ Start, - MsgIdToSeqDict = - lists:foldl( - fun (MsgId, Acc) -> - Remaining = MsgCount - MsgId, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, MsgId, Msg, MsgSizeBytes), - dict:store(MsgId, SeqId, Acc) - end, dict:new(), List), - %% we really do want to ack each of this individually - [begin {ok, SeqId} = dict:find(MsgId, MsgIdToSeqDict), - rabbit_disk_queue:ack(q, [SeqId]) - end || MsgId <- AckList2], - rabbit_disk_queue:tx_commit(q, [], []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_startup_with_queue_gaps() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, true)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% ack every other message we have delivered (starting at the _first_) - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:ack(q, [SeqId2]), - false; - (_SeqId2, false) -> - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Acked every other message delivered done~n", []), - rdq_stop(), - rdq_start(), - io:format("Startup (with shuffle) done~n", []), - %% should have shuffled up. So we should now get - %% lists:seq(2,500,2) already delivered - Seqs2 = [begin - Remaining = round(Total - ((Half + N)/2)), - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(2,Half,2)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - io:format("Reread non-acked messages done~n", []), - %% and now fetch the rest - Seqs3 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1 + Half,Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - io:format("Read second half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_redeliver() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% now requeue every other message (starting at the _first_) - %% and ack the other ones - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:requeue(q, [{SeqId2, true}]), - false; - (SeqId2, false) -> - rabbit_disk_queue:ack(q, [SeqId2]), - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Redeliver and acking done~n", []), - %% we should now get the 2nd half in order, followed by - %% every-other-from-the-first-half - Seqs2 = [begin - Remaining = round(Total - N + (Half/2)), - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1+Half, Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - Seqs3 = [begin - Remaining = round((Half - N) / 2) - 1, - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1, Half, 2)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_purge() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - rabbit_disk_queue:purge(q), - io:format("Purge done~n", []), - rabbit_disk_queue:tx_commit(q, [], Seqs), - io:format("Ack first half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_new_mixed_queue(Q, Durable, Disk) -> - {ok, MS} = rabbit_mixed_queue:init(Q, Durable), - {MS1, _, _, _} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - case Disk of - true -> {ok, MS2} = rabbit_mixed_queue:to_disk_only_mode([], MS1), - MS2; - false -> MS1 - end. - -rdq_test_mixed_queue_modes() -> - rdq_virgin(), - rdq_start(), - Payload = <<0:(8*256)>>, - MS = rdq_new_mixed_queue(q, true, false), - MS2 = lists:foldl( - fun (_N, MS1) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS, lists:seq(1,10)), - MS4 = lists:foldl( - fun (_N, MS3) -> - Msg = (rabbit_basic:message(x, <<>>, [], Payload)) - #basic_message { is_persistent = true }, - {ok, MS3a} = rabbit_mixed_queue:publish(Msg, MS3), - MS3a - end, MS2, lists:seq(1,10)), - MS6 = lists:foldl( - fun (_N, MS5) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS5a} = rabbit_mixed_queue:publish(Msg, MS5), - MS5a - end, MS4, lists:seq(1,10)), - 30 = rabbit_mixed_queue:length(MS6), - io:format("Published a mixture of messages; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS6)]), - {ok, MS7} = rabbit_mixed_queue:to_disk_only_mode([], MS6), - 30 = rabbit_mixed_queue:length(MS7), - io:format("Converted to disk only mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS7)]), - {ok, MS8} = rabbit_mixed_queue:to_mixed_mode([], MS7), - 30 = rabbit_mixed_queue:length(MS8), - io:format("Converted to mixed mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS8)]), - MS10 = - lists:foldl( - fun (N, MS9) -> - Rem = 30 - N, - {{#basic_message { is_persistent = false }, - false, _AckTag, Rem}, - MS9a} = rabbit_mixed_queue:deliver(MS9), - MS9a - end, MS8, lists:seq(1,10)), - 20 = rabbit_mixed_queue:length(MS10), - io:format("Delivered initial non persistent messages~n"), - {ok, MS11} = rabbit_mixed_queue:to_disk_only_mode([], MS10), - 20 = rabbit_mixed_queue:length(MS11), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS12 = rdq_new_mixed_queue(q, true, false), - 10 = rabbit_mixed_queue:length(MS12), - io:format("Recovered queue~n"), - {MS14, AckTags} = - lists:foldl( - fun (N, {MS13, AcksAcc}) -> - Rem = 10 - N, - {{Msg = #basic_message { is_persistent = true }, - false, AckTag, Rem}, - MS13a} = rabbit_mixed_queue:deliver(MS13), - {MS13a, [{Msg, AckTag} | AcksAcc]} - end, {MS12, []}, lists:seq(1,10)), - 0 = rabbit_mixed_queue:length(MS14), - {ok, MS15} = rabbit_mixed_queue:ack(AckTags, MS14), - io:format("Delivered and acked all messages~n"), - {ok, MS16} = rabbit_mixed_queue:to_disk_only_mode([], MS15), - 0 = rabbit_mixed_queue:length(MS16), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS17 = rdq_new_mixed_queue(q, true, false), - 0 = rabbit_mixed_queue:length(MS17), - {MS17,0,0,0} = rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS17), - io:format("Recovered queue~n"), - rdq_stop(), - passed. - -rdq_test_mode_conversion_mid_txn() -> - Payload = <<0:(8*256)>>, - MsgIdsA = lists:seq(0,9), - MsgsA = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsA ], - MsgIdsB = lists:seq(10,20), - MsgsB = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsB ], - - rdq_virgin(), - rdq_start(), - MS0 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS0, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, commit), - - rdq_stop_virgin_start(), - MS1 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS1, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, cancel), - - - rdq_stop_virgin_start(), - MS2 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS2, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, commit), - - rdq_stop_virgin_start(), - MS3 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS3, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, cancel), - - rdq_stop(), - passed. - -rdq_tx_publish_mixed_alter_commit_get(MS0, MsgsA, MsgsB, ChangeFun, CommitOrCancel) -> - 0 = rabbit_mixed_queue:length(MS0), - MS2 = lists:foldl( - fun (Msg, MS1) -> - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS0, MsgsA), - Len0 = length(MsgsA), - Len0 = rabbit_mixed_queue:length(MS2), - MS4 = lists:foldl( - fun (Msg, MS3) -> - {ok, MS3a} = rabbit_mixed_queue:tx_publish(Msg, MS3), - MS3a - end, MS2, MsgsB), - Len0 = rabbit_mixed_queue:length(MS4), - {ok, MS5} = ChangeFun(MsgsB, MS4), - Len0 = rabbit_mixed_queue:length(MS5), - {ok, MS9} = - case CommitOrCancel of - commit -> - {ok, MS6} = rabbit_mixed_queue:tx_commit(MsgsB, [], MS5), - Len1 = Len0 + length(MsgsB), - Len1 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len1 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA ++ MsgsB), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8); - cancel -> - {ok, MS6} = rabbit_mixed_queue:tx_cancel(MsgsB, MS5), - Len0 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len0 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8) - end, - 0 = rabbit_mixed_queue:length(MS9), - Msg = rdq_message(0, <<0:256>>, false), - {ok, AckTag, MS10} = rabbit_mixed_queue:publish_delivered(Msg, MS9), - {ok,MS11} = rabbit_mixed_queue:ack([{Msg, AckTag}], MS10), - 0 = rabbit_mixed_queue:length(MS11), - passed. - -rdq_test_disk_queue_modes() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half1 = lists:seq(1,round(Total/2)), - Half2 = lists:seq(1 + round(Total/2), Total), - CommitHalf1 = lists:zip(Half1, lists:duplicate(round(Total/2), false)), - CommitHalf2 = lists:zip(Half2, lists:duplicate - (Total - round(Total/2), false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half1], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf1, []), - io:format("Publish done~n", []), - ok = rabbit_disk_queue:to_disk_only_mode(), - io:format("To Disk Only done~n", []), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half2], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf2, []), - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half1], - io:format("Deliver first half done~n", []), - ok = rabbit_disk_queue:to_ram_disk_mode(), - io:format("To RAM Disk done~n", []), - Seqs2 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half2], - io:format("Deliver second half done~n", []), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs), - ok = rabbit_disk_queue:to_disk_only_mode(), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs2), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_time_commands(Funcs) -> - lists:foreach(fun (F) -> F() end, Funcs). - -rdq_virgin() -> - {Micros, {ok, _}} = - timer:tc(rabbit_disk_queue, start_link, []), - ok = rabbit_disk_queue:stop_and_obliterate(), - timer:sleep(1000), - Micros. - -rdq_start() -> - {ok, _} = rabbit_disk_queue:start_link(), - ok = rabbit_disk_queue:to_ram_disk_mode(), - ok. - -rdq_stop() -> - rabbit_disk_queue:stop(), - timer:sleep(1000). - -rdq_stop_virgin_start() -> - rdq_stop(), - rdq_virgin(), - rdq_start(). -- cgit v1.2.1 From 037c4b7eb85525867d870f9d5b88500d7d69afc1 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 17 Aug 2009 17:36:20 +0100 Subject: reversed everything but the changes to increase priority of notify_sent and unblock. To QA this, find the diff between this and the default rev a53ac6a45325 --- Makefile | 7 +- include/rabbit.hrl | 8 +- scripts/rabbitmq-server | 3 +- scripts/rabbitmq-server.bat | 3 +- scripts/rabbitmq-service.bat | 3 +- src/priority_queue.erl | 42 +- src/rabbit.erl | 16 +- src/rabbit_alarm.erl | 52 +- src/rabbit_amqqueue.erl | 84 +- src/rabbit_amqqueue_process.erl | 568 +++++------ src/rabbit_basic.erl | 17 +- src/rabbit_channel.erl | 7 +- src/rabbit_control.erl | 22 +- src/rabbit_disk_queue.erl | 1973 ------------------------------------- src/rabbit_guid.erl | 22 +- src/rabbit_memsup.erl | 126 --- src/rabbit_memsup_darwin.erl | 102 -- src/rabbit_memsup_linux.erl | 99 +- src/rabbit_misc.erl | 40 +- src/rabbit_mixed_queue.erl | 596 ----------- src/rabbit_mnesia.erl | 93 +- src/rabbit_persister.erl | 523 ++++++++++ src/rabbit_queue_mode_manager.erl | 496 ---------- src/rabbit_queue_prefetcher.erl | 258 ----- src/rabbit_tests.erl | 582 +---------- 25 files changed, 993 insertions(+), 4749 deletions(-) delete mode 100644 src/rabbit_disk_queue.erl delete mode 100644 src/rabbit_memsup.erl delete mode 100644 src/rabbit_memsup_darwin.erl delete mode 100644 src/rabbit_mixed_queue.erl create mode 100644 src/rabbit_persister.erl delete mode 100644 src/rabbit_queue_mode_manager.erl delete mode 100644 src/rabbit_queue_prefetcher.erl diff --git a/Makefile b/Makefile index 05464ca1..c3b0c598 100644 --- a/Makefile +++ b/Makefile @@ -20,10 +20,10 @@ PYTHON=python ifndef USE_SPECS # our type specs rely on features / bug fixes in dialyzer that are -# only available in R13B upwards (R13B is eshell 5.7.1) +# only available in R12B-3 upwards # # NB: the test assumes that version number will only contain single digits -USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.0" ]; then echo "true"; else echo "false"; fi) +USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.6.2" ]; then echo "true"; else echo "false"; fi) endif #other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests @@ -101,8 +101,7 @@ run-tests: all start-background-node: $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server ; sleep 1 + ./scripts/rabbitmq-server -detached; sleep 1 start-rabbit-on-node: all echo "rabbit:start()." | $(ERL_CALL) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 0ba31cb5..784c21b3 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -62,10 +62,7 @@ -record(listener, {node, protocol, host, port}). --record(basic_message, {exchange_name, routing_key, content, - guid, is_persistent}). - --record(dq_msg_loc, {queue_and_seq_id, is_delivered, msg_id}). +-record(basic_message, {exchange_name, routing_key, content, persistent_key}). -record(delivery, {mandatory, immediate, txn, sender, message}). @@ -137,8 +134,7 @@ #basic_message{exchange_name :: exchange_name(), routing_key :: routing_key(), content :: content(), - guid :: guid(), - is_persistent :: bool()}). + persistent_key :: maybe(pkey())}). -type(message() :: basic_message()). -type(delivery() :: #delivery{mandatory :: bool(), diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index f802ec4c..547220b4 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -105,9 +105,8 @@ exec erl \ -os_mon start_memsup false \ -os_mon start_os_sup false \ -os_mon memsup_system_only true \ - -os_mon system_memory_high_watermark 0.8 \ + -os_mon system_memory_high_watermark 0.95 \ -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - -mnesia dump_log_write_threshold 10000 \ ${RABBITMQ_CLUSTER_CONFIG_OPTION} \ ${RABBITMQ_SERVER_START_ARGS} \ "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 3b6e4938..b4868841 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -134,9 +134,8 @@ if exist "%RABBITMQ_EBIN_ROOT%\rabbit.boot" ( -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat index 82aa4d5c..29be1742 100755 --- a/scripts/rabbitmq-service.bat +++ b/scripts/rabbitmq-service.bat @@ -175,9 +175,8 @@ set ERLANG_SERVICE_ARGUMENTS= ^ -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 0c777471..732757c4 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -55,8 +55,7 @@ -module(priority_queue). --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). +-export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, out/1]). %%---------------------------------------------------------------------------- @@ -73,8 +72,7 @@ -spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). -spec(in/2 :: (any(), pqueue()) -> pqueue()). -spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {(empty | {value, any()}), pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). +-spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). -endif. @@ -149,42 +147,6 @@ out({pqueue, [{P, Q} | Queues]}) -> end, {R, NewQ}. -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - r2f([]) -> {queue, [], []}; r2f([_] = R) -> {queue, [], R}; r2f([X,Y]) -> {queue, [X], [Y]}; diff --git a/src/rabbit.erl b/src/rabbit.erl index 88c60eb9..b0d62b5a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -139,8 +139,6 @@ start(normal, []) -> {ok, MemoryAlarms} = application:get_env(memory_alarms), ok = rabbit_alarm:start(MemoryAlarms), - - ok = start_child(rabbit_queue_mode_manager), ok = rabbit_binary_generator: check_empty_content_body_frame_size(), @@ -148,19 +146,15 @@ start(normal, []) -> ok = start_child(rabbit_router), ok = start_child(rabbit_node_monitor) end}, - {"disk queue", - fun () -> - ok = start_child(rabbit_disk_queue) - end}, {"recovery", fun () -> ok = maybe_insert_default_data(), ok = rabbit_exchange:recover(), - {ok, DurableQueues} = rabbit_amqqueue:recover(), - DurableQueueNames = - sets:from_list([ Q #amqqueue.name || Q <- DurableQueues ]), - ok = rabbit_disk_queue:delete_non_durable_queues( - DurableQueueNames) + ok = rabbit_amqqueue:recover() + end}, + {"persister", + fun () -> + ok = start_child(rabbit_persister) end}, {"guid generator", fun () -> diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 309c9a0e..21999f16 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -41,7 +41,7 @@ -define(MEMSUP_CHECK_INTERVAL, 1000). %% OSes on which we know memory alarms to be trustworthy --define(SUPPORTED_OS, [{unix, linux}, {unix, darwin}]). +-define(SUPPORTED_OS, [{unix, linux}]). -record(alarms, {alertees, system_memory_high_watermark = false}). @@ -136,35 +136,33 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- start_memsup() -> - {Mod, Args} = - case os:type() of - %% memsup doesn't take account of buffers or cache when - %% considering "free" memory - therefore on Linux we can - %% get memory alarms very easily without any pressure - %% existing on memory at all. Therefore we need to use - %% our own simple memory monitor. - %% - {unix, linux} -> {rabbit_memsup, [rabbit_memsup_linux]}; - {unix, darwin} -> {rabbit_memsup, [rabbit_memsup_darwin]}; - - %% Start memsup programmatically rather than via the - %% rabbitmq-server script. This is not quite the right - %% thing to do as os_mon checks to see if memsup is - %% available before starting it, but as memsup is - %% available everywhere (even on VXWorks) it should be - %% ok. - %% - %% One benefit of the programmatic startup is that we - %% can add our alarm_handler before memsup is running, - %% thus ensuring that we notice memory alarms that go - %% off on startup. - %% - _ -> {memsup, []} - end, + Mod = case os:type() of + %% memsup doesn't take account of buffers or cache when + %% considering "free" memory - therefore on Linux we can + %% get memory alarms very easily without any pressure + %% existing on memory at all. Therefore we need to use + %% our own simple memory monitor. + %% + {unix, linux} -> rabbit_memsup_linux; + + %% Start memsup programmatically rather than via the + %% rabbitmq-server script. This is not quite the right + %% thing to do as os_mon checks to see if memsup is + %% available before starting it, but as memsup is + %% available everywhere (even on VXWorks) it should be + %% ok. + %% + %% One benefit of the programmatic startup is that we + %% can add our alarm_handler before memsup is running, + %% thus ensuring that we notice memory alarms that go + %% off on startup. + %% + _ -> memsup + end, %% This is based on os_mon:childspec(memsup, true) {ok, _} = supervisor:start_child( os_mon_sup, - {memsup, {Mod, start_link, Args}, + {memsup, {Mod, start_link, []}, permanent, 2000, worker, [Mod]}), ok. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 62ea465d..01b1f088 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,6 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/3, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -63,7 +62,7 @@ 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). -spec(start/0 :: () -> 'ok'). --spec(recover/0 :: () -> {'ok', [amqqueue()]}). +-spec(recover/0 :: () -> 'ok'). -spec(declare/4 :: (queue_name(), bool(), bool(), amqp_table()) -> amqqueue()). -spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). @@ -102,13 +101,10 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). --spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). --spec(report_memory/1 :: (pid()) -> 'ok'). -endif. @@ -123,42 +119,37 @@ start() -> ok. recover() -> - {ok, DurableQueues} = recover_durable_queues(), - {ok, DurableQueues}. + ok = recover_durable_queues(), + ok. recover_durable_queues() -> Node = node(), - DurableQueues = - lists:foldl( - fun (RecoveredQ, Acc) -> - Q = start_queue_process(RecoveredQ), - %% We need to catch the case where a client connected to - %% another node has deleted the queue (and possibly - %% re-created it). - case rabbit_misc:execute_mnesia_transaction( - fun () -> - Match = - mnesia:match_object( - rabbit_durable_queue, RecoveredQ, read), - case Match of - [_] -> ok = store_queue(Q), - true; - [] -> false - end - end) of - true -> [Q|Acc]; - false -> exit(Q#amqqueue.pid, shutdown), - Acc - end - end, [], - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end)), - {ok, DurableQueues}. + lists:foreach( + fun (RecoveredQ) -> + Q = start_queue_process(RecoveredQ), + %% We need to catch the case where a client connected to + %% another node has deleted the queue (and possibly + %% re-created it). + case rabbit_misc:execute_mnesia_transaction( + fun () -> case mnesia:match_object( + rabbit_durable_queue, RecoveredQ, read) of + [_] -> ok = store_queue(Q), + true; + [] -> false + end + end) of + true -> ok; + false -> exit(Q#amqqueue.pid, shutdown) + end + end, + %% TODO: use dirty ops instead + rabbit_misc:execute_mnesia_transaction( + fun () -> + qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} + <- mnesia:table(rabbit_durable_queue), + node(Pid) == Node])) + end)), + ok. declare(QueueName, Durable, AutoDelete, Args) -> Q = start_queue_process(#amqqueue{name = QueueName, @@ -225,23 +216,6 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). -set_mode_pin(VHostPath, Queue, Disk) - when is_binary(VHostPath) andalso is_binary(Queue) -> - with(rabbit_misc:r(VHostPath, queue, Queue), - fun(Q) -> case Disk of - true -> rabbit_queue_mode_manager:pin_to_disk - (Q #amqqueue.pid); - false -> rabbit_queue_mode_manager:unpin_from_disk - (Q #amqqueue.pid) - end - end). - -set_mode(QPid, Mode) -> - gen_server2:pcast(QPid, 10, {set_mode, Mode}). - -report_memory(QPid) -> - gen_server2:cast(QPid, report_memory). - info(#amqqueue{ pid = QPid }) -> gen_server2:pcall(QPid, 9, info, infinity). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 14a0370d..fe2e8509 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -38,12 +38,10 @@ -define(UNSENT_MESSAGE_LIMIT, 100). -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds -export([start_link/1]). --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1]). +-export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]). -import(queue). -import(erlang). @@ -54,12 +52,10 @@ owner, exclusive_consumer, has_had_consumers, - mixed_state, next_msg_id, + message_buffer, active_consumers, - blocked_consumers, - memory_report_timer - }). + blocked_consumers}). -record(consumer, {tag, ack_required}). @@ -88,9 +84,7 @@ acks_uncommitted, consumers, transactions, - memory, - mode - ]). + memory]). %%---------------------------------------------------------------------------- @@ -99,35 +93,24 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable }) -> +init(Q) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), - ok = rabbit_queue_mode_manager:register - (self(), false, rabbit_amqqueue, set_mode, [self()]), - {ok, MS} = rabbit_mixed_queue:init(QName, Durable), - State = #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - mixed_state = MS, - next_msg_id = 1, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - memory_report_timer = undefined - }, - %% first thing we must do is report_memory which will clear out - %% the 'undefined' values in gain and loss in mixed_queue state - {ok, start_memory_timer(State), hibernate, + {ok, #q{q = Q, + owner = none, + exclusive_consumer = none, + has_had_consumers = false, + next_msg_id = 1, + message_buffer = queue:new(), + active_consumers = queue:new(), + blocked_consumers = queue:new()}, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. terminate(_Reason, State) -> %% FIXME: How do we cancel active subscriptions? QName = qname(State), - NewState = - lists:foldl(fun (Txn, State1) -> - rollback_transaction(Txn, State1) - end, State, all_tx()), - rabbit_mixed_queue:delete_queue(NewState #q.mixed_state), - stop_memory_timer(NewState), + lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, + all_tx()), + ok = purge_message_buffer(QName, State#q.message_buffer), ok = rabbit_amqqueue:internal_delete(QName). code_change(_OldVsn, State, _Extra) -> @@ -135,24 +118,9 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- -reply(Reply, NewState) -> - {reply, Reply, start_memory_timer(NewState), hibernate}. +reply(Reply, NewState) -> {reply, Reply, NewState, hibernate}. -noreply(NewState) -> - {noreply, start_memory_timer(NewState), hibernate}. - -start_memory_timer(State = #q { memory_report_timer = undefined }) -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_amqqueue, report_memory, [self()]), - report_memory(false, State #q { memory_report_timer = TRef }); -start_memory_timer(State) -> - State. - -stop_memory_timer(State = #q { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #q { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #q { memory_report_timer = undefined }. +noreply(NewState) -> {noreply, NewState, hibernate}. lookup_ch(ChPid) -> case get({ch, ChPid}) of @@ -199,11 +167,12 @@ record_current_channel_tx(ChPid, Txn) -> %% that wasn't happening already) store_ch_record((ch_record(ChPid))#cr{txn = Txn}). -deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers, - next_msg_id = NextId}) -> +deliver_immediately(Message, Delivered, + State = #q{q = #amqqueue{name = QName}, + active_consumers = ActiveConsumers, + blocked_consumers = BlockedConsumers, + next_msg_id = NextId}) -> + ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), case queue:out(ActiveConsumers) of {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, ack_required = AckRequired}}}, @@ -211,21 +180,15 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, C = #cr{limiter_pid = LimiterPid, unsent_message_count = Count, unacked_messages = UAM} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of + case rabbit_limiter:can_send(LimiterPid, self(), AckRequired) of true -> - {{Msg, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Msg]), rabbit_channel:deliver( ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, IsDelivered, Msg}), - NewUAM = - case AckRequired of - true -> dict:store(NextId, {Msg, AckTag}, UAM); - false -> UAM - end, + {QName, self(), NextId, Delivered, Message}), + NewUAM = case AckRequired of + true -> dict:store(NextId, Message, UAM); + false -> UAM + end, NewC = C#cr{unsent_message_count = Count + 1, unacked_messages = NewUAM}, store_ch_record(NewC), @@ -241,113 +204,54 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, {ActiveConsumers1, queue:in(QEntry, BlockedConsumers1)} end, - State2 = State1 #q { - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers, - next_msg_id = NextId + 1 - }, - deliver_queue(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> + {offered, AckRequired, + State#q{active_consumers = NewActiveConsumers, + blocked_consumers = NewBlockedConsumers, + next_msg_id = NextId + 1}}; + false -> store_ch_record(C#cr{is_limit_active = true}), {NewActiveConsumers, NewBlockedConsumers} = move_consumers(ChPid, ActiveConsumers, BlockedConsumers), - deliver_queue( - Funs, FunAcc, + deliver_immediately( + Message, Delivered, State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} + blocked_consumers = NewBlockedConsumers}) end; {empty, _} -> - {FunAcc, State} + {not_offered, State} end. -deliver_from_queue_pred({IsEmpty, _AutoAcks}, _State) -> - not IsEmpty. -deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, - State = #q { mixed_state = MS }) -> - {{Msg, IsDelivered, AckTag, Remaining}, MS1} = - rabbit_mixed_queue:deliver(MS), - AutoAcks1 = - case AckRequired of - true -> AutoAcks; - false -> [{Msg, AckTag} | AutoAcks] - end, - {{Msg, IsDelivered, AckTag}, {0 == Remaining, AutoAcks1}, - State #q { mixed_state = MS1 }}. - -run_message_queue(State = #q { mixed_state = MS }) -> - Funs = { fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3 }, - IsEmpty = rabbit_mixed_queue:is_empty(MS), - {{_IsEmpty1, AutoAcks}, State1} = - deliver_queue(Funs, {IsEmpty, []}, State), - {ok, MS1} = - rabbit_mixed_queue:ack(AutoAcks, State1 #q.mixed_state), - State1 #q { mixed_state = MS1 }. - -attempt_immediate_delivery(none, _ChPid, Msg, State) -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1) -> - {AckTag, State2} = - case AckRequired of - true -> - {ok, AckTag1, MS} = - rabbit_mixed_queue:publish_delivered( - Msg, State1 #q.mixed_state), - {AckTag1, State1 #q { mixed_state = MS }}; - false -> - {noack, State1} - end, - {{Msg, false, AckTag}, true, State2} - end, - deliver_queue({ PredFun, DeliverFun }, false, State); -attempt_immediate_delivery(Txn, ChPid, Msg, State) -> - {ok, MS} = rabbit_mixed_queue:tx_publish(Msg, State #q.mixed_state), - record_pending_message(Txn, ChPid, Msg), - {true, State #q { mixed_state = MS }}. - -deliver_or_enqueue(Txn, ChPid, Msg, State) -> - case attempt_immediate_delivery(Txn, ChPid, Msg, State) of +attempt_delivery(none, _ChPid, Message, State) -> + case deliver_immediately(Message, false, State) of + {offered, false, State1} -> + {true, State1}; + {offered, true, State1} -> + persist_message(none, qname(State), Message), + persist_delivery(qname(State), Message, false), + {true, State1}; + {not_offered, State1} -> + {false, State1} + end; +attempt_delivery(Txn, ChPid, Message, State) -> + persist_message(Txn, qname(State), Message), + record_pending_message(Txn, ChPid, Message), + {true, State}. + +deliver_or_enqueue(Txn, ChPid, Message, State) -> + case attempt_delivery(Txn, ChPid, Message, State) of {true, NewState} -> {true, NewState}; {false, NewState} -> - %% Txn is none and no unblocked channels with consumers - {ok, MS} = rabbit_mixed_queue:publish(Msg, State #q.mixed_state), - {false, NewState #q { mixed_state = MS }} - end. - -%% all these messages have already been delivered at least once and -%% not ack'd, but need to be either redelivered or requeued -deliver_or_requeue_n([], State) -> - run_message_queue(State); -deliver_or_requeue_n(MsgsWithAcks, State) -> - Funs = { fun deliver_or_requeue_msgs_pred/2, - fun deliver_or_requeue_msgs_deliver/3 }, - {{_RemainingLengthMinusOne, AutoAcks, OutstandingMsgs}, NewState} = - deliver_queue(Funs, {length(MsgsWithAcks) - 1, [], MsgsWithAcks}, - State), - {ok, MS} = rabbit_mixed_queue:ack(AutoAcks, - NewState #q.mixed_state), - case OutstandingMsgs of - [] -> run_message_queue(NewState #q { mixed_state = MS }); - _ -> {ok, MS1} = rabbit_mixed_queue:requeue(OutstandingMsgs, MS), - NewState #q { mixed_state = MS1 } + persist_message(Txn, qname(State), Message), + NewMB = queue:in({Message, false}, NewState#q.message_buffer), + {false, NewState#q{message_buffer = NewMB}} end. -deliver_or_requeue_msgs_pred({Len, _AcksAcc, _MsgsWithAcks}, _State) -> - -1 < Len. -deliver_or_requeue_msgs_deliver( - false, {Len, AcksAcc, [(MsgAckTag = {Msg, _}) | MsgsWithAcks]}, State) -> - {{Msg, true, noack}, {Len - 1, [MsgAckTag | AcksAcc], MsgsWithAcks}, State}; -deliver_or_requeue_msgs_deliver( - true, {Len, AcksAcc, [{Msg, AckTag} | MsgsWithAcks]}, State) -> - {{Msg, true, AckTag}, {Len - 1, AcksAcc, MsgsWithAcks}, State}. +deliver_or_enqueue_n(Messages, State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(queue:join(MessageBuffer, queue:from_list(Messages)), + State). add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). @@ -381,7 +285,7 @@ possibly_unblock(State, ChPid, Update) -> move_consumers(ChPid, State#q.blocked_consumers, State#q.active_consumers), - run_message_queue( + run_poke_burst( State#q{active_consumers = NewActiveConsumers, blocked_consumers = NewBlockedeConsumers}) end @@ -398,27 +302,27 @@ handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> unacked_messages = UAM} -> erlang:demonitor(MonitorRef), erase({ch, ChPid}), - State1 = - case Txn of - none -> State; - _ -> rollback_transaction(Txn, State) - end, - State2 = - deliver_or_requeue_n( - [MsgWithAck || - {_MsgId, MsgWithAck} <- dict:to_list(UAM)], - State1 #q { + case Txn of + none -> ok; + _ -> ok = rollback_work(Txn, qname(State)), + erase_tx(Txn) + end, + NewState = + deliver_or_enqueue_n( + [{Message, true} || + {_Messsage_id, Message} <- dict:to_list(UAM)], + State#q{ exclusive_consumer = case Holder of {ChPid, _} -> none; Other -> Other end, active_consumers = remove_consumers( - ChPid, State1#q.active_consumers), + ChPid, State#q.active_consumers), blocked_consumers = remove_consumers( - ChPid, State1#q.blocked_consumers)}), - case should_auto_delete(State2) of - false -> noreply(State2); - true -> {stop, normal, State2} + ChPid, State#q.blocked_consumers)}), + case should_auto_delete(NewState) of + false -> noreply(NewState); + true -> {stop, normal, NewState} end end. @@ -441,6 +345,26 @@ check_exclusive_access(none, true, State) -> false -> in_use end. +run_poke_burst(State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(MessageBuffer, State). + +run_poke_burst(MessageBuffer, State) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> + case deliver_immediately(Message, Delivered, State) of + {offered, true, NewState} -> + persist_delivery(qname(State), Message, Delivered), + run_poke_burst(BufferTail, NewState); + {offered, false, NewState} -> + persist_auto_ack(qname(State), Message), + run_poke_burst(BufferTail, NewState); + {not_offered, NewState} -> + NewState#q{message_buffer = MessageBuffer} + end; + {empty, _} -> + State#q{message_buffer = MessageBuffer} + end. + is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso queue:is_empty(State#q.blocked_consumers). @@ -449,6 +373,62 @@ maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). qname(#q{q = #amqqueue{name = QName}}) -> QName. +persist_message(_Txn, _QName, #basic_message{persistent_key = none}) -> + ok; +persist_message(Txn, QName, Message) -> + M = Message#basic_message{ + %% don't persist any recoverable decoded properties, rebuild from properties_bin on restore + content = rabbit_binary_parser:clear_decoded_content( + Message#basic_message.content)}, + persist_work(Txn, QName, + [{publish, M, {QName, M#basic_message.persistent_key}}]). + +persist_delivery(_QName, _Message, + true) -> + ok; +persist_delivery(_QName, #basic_message{persistent_key = none}, + _Delivered) -> + ok; +persist_delivery(QName, #basic_message{persistent_key = PKey}, + _Delivered) -> + persist_work(none, QName, [{deliver, {QName, PKey}}]). + +persist_acks(Txn, QName, Messages) -> + persist_work(Txn, QName, + [{ack, {QName, PKey}} || + #basic_message{persistent_key = PKey} <- Messages, + PKey =/= none]). + +persist_auto_ack(_QName, #basic_message{persistent_key = none}) -> + ok; +persist_auto_ack(QName, #basic_message{persistent_key = PKey}) -> + %% auto-acks are always non-transactional + rabbit_persister:dirty_work([{ack, {QName, PKey}}]). + +persist_work(_Txn,_QName, []) -> + ok; +persist_work(none, _QName, WorkList) -> + rabbit_persister:dirty_work(WorkList); +persist_work(Txn, QName, WorkList) -> + mark_tx_persistent(Txn), + rabbit_persister:extend_transaction({Txn, QName}, WorkList). + +commit_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:commit_transaction/1, + Txn, QName). + +rollback_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:rollback_transaction/1, + Txn, QName). + +%% optimisation: don't do unnecessary work +%% it would be nice if this was handled by the persister +do_if_persistent(F, Txn, QName) -> + case is_tx_persistent(Txn) of + false -> ok; + true -> ok = F({Txn, QName}) + end. + lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx{ch_pid = none, @@ -470,14 +450,19 @@ all_tx_record() -> all_tx() -> [Txn || {{txn, Txn}, _} <- get()]. -record_pending_message(Txn, ChPid, Message = - #basic_message { is_persistent = IsPersistent }) -> - Tx = #tx{pending_messages = Pending, is_persistent = IsPersistentTxn } = - lookup_tx(Txn), +mark_tx_persistent(Txn) -> + Tx = lookup_tx(Txn), + store_tx(Txn, Tx#tx{is_persistent = true}). + +is_tx_persistent(Txn) -> + #tx{is_persistent = Res} = lookup_tx(Txn), + Res. + +record_pending_message(Txn, ChPid, Message) -> + Tx = #tx{pending_messages = Pending} = lookup_tx(Txn), record_current_channel_tx(ChPid, Txn), - store_tx(Txn, Tx #tx { pending_messages = [Message | Pending], - is_persistent = IsPersistentTxn orelse IsPersistent - }). + store_tx(Txn, Tx#tx{pending_messages = [{Message, false} | Pending], + ch_pid = ChPid}). record_pending_acks(Txn, ChPid, MsgIds) -> Tx = #tx{pending_acks = Pending} = lookup_tx(Txn), @@ -485,53 +470,48 @@ record_pending_acks(Txn, ChPid, MsgIds) -> store_tx(Txn, Tx#tx{pending_acks = [MsgIds | Pending], ch_pid = ChPid}). -commit_transaction(Txn, State) -> - #tx { ch_pid = ChPid, - pending_messages = PendingMessages, - pending_acks = PendingAcks - } = lookup_tx(Txn), - PendingMessagesOrdered = lists:reverse(PendingMessages), - PendingAcksOrdered = lists:append(PendingAcks), - Acks = - case lookup_ch(ChPid) of - not_found -> []; - C = #cr { unacked_messages = UAM } -> - {MsgWithAcks, Remaining} = - collect_messages(PendingAcksOrdered, UAM), - store_ch_record(C#cr{unacked_messages = Remaining}), - MsgWithAcks - end, - {ok, MS} = rabbit_mixed_queue:tx_commit( - PendingMessagesOrdered, Acks, State #q.mixed_state), - State #q { mixed_state = MS }. - -rollback_transaction(Txn, State) -> - #tx { pending_messages = PendingMessages - } = lookup_tx(Txn), - {ok, MS} = rabbit_mixed_queue:tx_cancel(PendingMessages, - State #q.mixed_state), - erase_tx(Txn), - State #q { mixed_state = MS }. +process_pending(Txn, State) -> + #tx{ch_pid = ChPid, + pending_messages = PendingMessages, + pending_acks = PendingAcks} = lookup_tx(Txn), + case lookup_ch(ChPid) of + not_found -> ok; + C = #cr{unacked_messages = UAM} -> + {_Acked, Remaining} = + collect_messages(lists:append(PendingAcks), UAM), + store_ch_record(C#cr{unacked_messages = Remaining}) + end, + deliver_or_enqueue_n(lists:reverse(PendingMessages), State). -%% {A, B} = collect_messages(C, D) %% A = C `intersect` D; B = D \\ C -%% err, A = C `intersect` D , via projection through the dict that is C collect_messages(MsgIds, UAM) -> lists:mapfoldl( fun (MsgId, D) -> {dict:fetch(MsgId, D), dict:erase(MsgId, D)} end, UAM, MsgIds). +purge_message_buffer(QName, MessageBuffer) -> + Messages = + [[Message || {Message, _Delivered} <- + queue:to_list(MessageBuffer)] | + lists:map( + fun (#cr{unacked_messages = UAM}) -> + [Message || {_MessageId, Message} <- dict:to_list(UAM)] + end, + all_ch_record())], + %% the simplest, though certainly not the most obvious or + %% efficient, way to purge messages from the persister is to + %% artifically ack them. + persist_acks(none, QName, lists:append(Messages)). + infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. i(name, #q{q = #amqqueue{name = Name}}) -> Name; i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(mode, #q{ mixed_state = MS }) -> - rabbit_mixed_queue:info(MS); i(pid, _) -> self(); -i(messages_ready, #q { mixed_state = MS }) -> - rabbit_mixed_queue:length(MS); +i(messages_ready, #q{message_buffer = MessageBuffer}) -> + queue:len(MessageBuffer); i(messages_unacknowledged, _) -> lists:sum([dict:size(UAM) || #cr{unacked_messages = UAM} <- all_ch_record()]); @@ -555,12 +535,6 @@ i(memory, _) -> i(Item, _) -> throw({bad_argument, Item}). -report_memory(Hib, State = #q { mixed_state = MS }) -> - {MS1, MSize, Gain, Loss} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - rabbit_queue_mode_manager:report_memory(self(), MSize, Gain, Loss, Hib), - State #q { mixed_state = MS1 }. - %--------------------------------------------------------------------------- handle_call(info, _From, State) -> @@ -586,8 +560,7 @@ handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> %% just all ready-to-consume queues get the message, with unready %% queues discarding the message? %% - {Delivered, NewState} = - attempt_immediate_delivery(Txn, ChPid, Message, State), + {Delivered, NewState} = attempt_delivery(Txn, ChPid, Message, State), reply(Delivered, NewState); handle_call({deliver, Txn, Message, ChPid}, _From, State) -> @@ -596,11 +569,12 @@ handle_call({deliver, Txn, Message, ChPid}, _From, State) -> reply(Delivered, NewState); handle_call({commit, Txn}, From, State) -> - NewState = commit_transaction(Txn, State), + ok = commit_work(Txn, qname(State)), %% optimisation: we reply straight away so the sender can continue gen_server2:reply(From, ok), + NewState = process_pending(Txn, State), erase_tx(Txn), - noreply(run_message_queue(NewState)); + noreply(NewState); handle_call({notify_down, ChPid}, From, State) -> %% optimisation: we reply straight away so the sender can continue @@ -610,27 +584,25 @@ handle_call({notify_down, ChPid}, From, State) -> handle_call({basic_get, ChPid, NoAck}, _From, State = #q{q = #amqqueue{name = QName}, next_msg_id = NextId, - mixed_state = MS - }) -> - case rabbit_mixed_queue:deliver(MS) of - {empty, MS1} -> reply(empty, State #q { mixed_state = MS1 }); - {{Msg, IsDelivered, AckTag, Remaining}, MS1} -> + message_buffer = MessageBuffer}) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> AckRequired = not(NoAck), - {ok, MS3} = - case AckRequired of - true -> - C = #cr{unacked_messages = UAM} = ch_record(ChPid), - NewUAM = dict:store(NextId, {Msg, AckTag}, UAM), - store_ch_record(C#cr{unacked_messages = NewUAM}), - {ok, MS1}; - false -> - rabbit_mixed_queue:ack([{Msg, AckTag}], MS1) - end, - Message = {QName, self(), NextId, IsDelivered, Msg}, - reply({ok, Remaining, Message}, - State #q { next_msg_id = NextId + 1, - mixed_state = MS3 - }) + case AckRequired of + true -> + persist_delivery(QName, Message, Delivered), + C = #cr{unacked_messages = UAM} = ch_record(ChPid), + NewUAM = dict:store(NextId, Message, UAM), + store_ch_record(C#cr{unacked_messages = NewUAM}); + false -> + persist_auto_ack(QName, Message) + end, + Msg = {QName, self(), NextId, Delivered, Message}, + reply({ok, queue:len(BufferTail), Msg}, + State#q{message_buffer = BufferTail, + next_msg_id = NextId + 1}); + {empty, _} -> + reply(empty, State) end; handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, @@ -651,14 +623,15 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, ack_required = not(NoAck)}, store_ch_record(C#cr{consumer_count = ConsumerCount +1, limiter_pid = LimiterPid}), - case ConsumerCount of - 0 -> ok = rabbit_limiter:register(LimiterPid, self()); - _ -> ok + if ConsumerCount == 0 -> + ok = rabbit_limiter:register(LimiterPid, self()); + true -> + ok end, - ExclusiveConsumer = case ExclusiveConsume of - true -> {ChPid, ConsumerTag}; - false -> ExistingHolder - end, + ExclusiveConsumer = + if ExclusiveConsume -> {ChPid, ConsumerTag}; + true -> ExistingHolder + end, State1 = State#q{has_had_consumers = true, exclusive_consumer = ExclusiveConsumer}, ok = maybe_send_reply(ChPid, OkMsg), @@ -669,7 +642,7 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, add_consumer( ChPid, Consumer, State1#q.blocked_consumers)}; - false -> run_message_queue( + false -> run_poke_burst( State1#q{ active_consumers = add_consumer( @@ -688,10 +661,11 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, reply(ok, State); C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - ok = case ConsumerCount of - 1 -> rabbit_limiter:unregister(LimiterPid, self()); - _ -> ok - end, + if ConsumerCount == 1 -> + ok = rabbit_limiter:unregister(LimiterPid, self()); + true -> + ok + end, ok = maybe_send_reply(ChPid, OkMsg), NewState = State#q{exclusive_consumer = cancel_holder(ChPid, @@ -710,15 +684,14 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, end; handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, - mixed_state = MS, + message_buffer = MessageBuffer, active_consumers = ActiveConsumers}) -> - Length = rabbit_mixed_queue:length(MS), - reply({ok, Name, Length, queue:len(ActiveConsumers)}, State); + reply({ok, Name, queue:len(MessageBuffer), queue:len(ActiveConsumers)}, + State); handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q { mixed_state = MS }) -> - Length = rabbit_mixed_queue:length(MS), - IsEmpty = Length == 0, + State = #q{message_buffer = MessageBuffer}) -> + IsEmpty = queue:is_empty(MessageBuffer), IsUnused = is_unused(State), if IfEmpty and not(IsEmpty) -> @@ -726,16 +699,16 @@ handle_call({delete, IfUnused, IfEmpty}, _From, IfUnused and not(IsUnused) -> reply({error, in_use}, State); true -> - {stop, normal, {ok, Length}, State} + {stop, normal, {ok, queue:len(MessageBuffer)}, State} end; -handle_call(purge, _From, State) -> - {Count, MS} = rabbit_mixed_queue:purge(State #q.mixed_state), - reply({ok, Count}, - State #q { mixed_state = MS }); +handle_call(purge, _From, State = #q{message_buffer = MessageBuffer}) -> + ok = purge_message_buffer(qname(State), MessageBuffer), + reply({ok, queue:len(MessageBuffer)}, + State#q{message_buffer = queue:new()}); -handle_call({claim_queue, ReaderPid}, _From, - State = #q{owner = Owner, exclusive_consumer = Holder}) -> +handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, + exclusive_consumer = Holder}) -> case Owner of none -> case check_exclusive_access(Holder, true, State) of @@ -748,10 +721,7 @@ handle_call({claim_queue, ReaderPid}, _From, %% pid... reply(locked, State); ok -> - reply(ok, State #q { owner = - {ReaderPid, - erlang:monitor(process, ReaderPid)} }) - + reply(ok, State#q{owner = {ReaderPid, erlang:monitor(process, ReaderPid)}}) end; {ReaderPid, _MonitorRef} -> reply(ok, State); @@ -769,21 +739,24 @@ handle_cast({ack, Txn, MsgIds, ChPid}, State) -> not_found -> noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, Remaining} = collect_messages(MsgIds, UAM), + {Acked, Remaining} = collect_messages(MsgIds, UAM), + persist_acks(Txn, qname(State), Acked), case Txn of none -> - {ok, MS} = - rabbit_mixed_queue:ack(MsgWithAcks, State #q.mixed_state), - store_ch_record(C#cr{unacked_messages = Remaining}), - noreply(State #q { mixed_state = MS }); + store_ch_record(C#cr{unacked_messages = Remaining}); _ -> - record_pending_acks(Txn, ChPid, MsgIds), - noreply(State) - end + record_pending_acks(Txn, ChPid, MsgIds) + end, + noreply(State) end; handle_cast({rollback, Txn}, State) -> - noreply(rollback_transaction(Txn, State)); + ok = rollback_work(Txn, qname(State)), + erase_tx(Txn), + noreply(State); + +handle_cast({redeliver, Messages}, State) -> + noreply(deliver_or_enqueue_n(Messages, State)); handle_cast({requeue, MsgIds, ChPid}, State) -> case lookup_ch(ChPid) of @@ -792,9 +765,10 @@ handle_cast({requeue, MsgIds, ChPid}, State) -> [ChPid]), noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, NewUAM} = collect_messages(MsgIds, UAM), + {Messages, NewUAM} = collect_messages(MsgIds, UAM), store_ch_record(C#cr{unacked_messages = NewUAM}), - noreply(deliver_or_requeue_n(MsgWithAcks, State)) + noreply(deliver_or_enqueue_n( + [{Message, true} || Message <- Messages], State)) end; handle_cast({unblock, ChPid}, State) -> @@ -823,22 +797,7 @@ handle_cast({limit, ChPid, LimiterPid}, State) -> end, NewLimited = Limited andalso LimiterPid =/= undefined, C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> - PendingMessages = - lists:flatten([Pending || #tx { pending_messages = Pending} - <- all_tx_record()]), - {ok, MS1} = (case Mode of - disk -> fun rabbit_mixed_queue:to_disk_only_mode/2; - mixed -> fun rabbit_mixed_queue:to_mixed_mode/2 - end)(PendingMessages, MS), - noreply(State #q { mixed_state = MS1 }); - -handle_cast(report_memory, State) -> - %% deliberately don't call noreply/2 as we don't want to restart the timer - %% by unsetting the timer, we force a report on the next normal message - {noreply, State #q { memory_report_timer = undefined }, hibernate}. + end)). handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> @@ -859,10 +818,3 @@ handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> handle_info(Info, State) -> ?LOGDEBUG("Info in queue: ~p~n", [Info]), {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q { mixed_state = MS }) -> - MS1 = rabbit_mixed_queue:maybe_prefetch(MS), - State1 = - stop_memory_timer(report_memory(true, State #q { mixed_state = MS1 })), - %% don't call noreply/1 as that'll restart the memory_report_timer - {hibernate, State1}. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 8adb608f..4033aaaf 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -33,8 +33,8 @@ -include("rabbit.hrl"). -include("rabbit_framing.hrl"). --export([publish/1, message/4, message/5, message/6, delivery/4]). --export([properties/1, publish/4, publish/7]). +-export([publish/1, message/4, properties/1, delivery/4]). +-export([publish/4, publish/7]). -export([build_content/2, from_content/1]). %%---------------------------------------------------------------------------- @@ -48,10 +48,6 @@ -spec(delivery/4 :: (bool(), bool(), maybe(txn()), message()) -> delivery()). -spec(message/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> message()). --spec(message/5 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid()) -> message()). --spec(message/6 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid(), bool()) -> message()). -spec(properties/1 :: (properties_input()) -> amqp_properties()). -spec(publish/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> publish_result()). @@ -95,18 +91,11 @@ from_content(Content) -> {Props, list_to_binary(lists:reverse(FragmentsRev))}. message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, rabbit_guid:guid()). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, false). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, IsPersistent) -> Properties = properties(RawProperties), #basic_message{exchange_name = ExchangeName, routing_key = RoutingKeyBin, content = build_content(Properties, BodyBin), - guid = MsgId, - is_persistent = IsPersistent}. + persistent_key = none}. properties(P = #'P_basic'{}) -> P; diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 397659c1..16b7c938 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -317,11 +317,14 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, %% We decode the content's properties here because we're almost %% certain to want to look at delivery-mode and priority. DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), + PersistentKey = case is_message_persistent(DecodedContent) of + true -> rabbit_guid:guid(); + false -> none + end, Message = #basic_message{exchange_name = ExchangeName, routing_key = RoutingKey, content = DecodedContent, - guid = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent)}, + persistent_key = PersistentKey}, {RoutingRes, DeliveredQPids} = rabbit_exchange:publish( Exchange, diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 99bbb742..37e4d189 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,9 +137,6 @@ Available commands: list_bindings [-p ] list_connections [ ...] - pin_queue_to_disk - unpin_queue_from_disk - Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -155,8 +152,8 @@ virtual host parameter for which to display results. The default value is \"/\". must be a member of the list [name, durable, auto_delete, arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, -messages, acks_uncommitted, consumers, transactions, memory, mode]. The default -is to display name and (number of) messages. +messages, acks_uncommitted, consumers, transactions, memory]. The default is + to display name and (number of) messages. must be a member of the list [name, type, durable, auto_delete, arguments]. The default is to display name and type. @@ -169,9 +166,6 @@ peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. -pin_queue_to_disk will force a queue to be in disk mode. -unpin_queue_from_disk will permit a queue that has been pinned to disk mode -to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -286,18 +280,6 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). -action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> - Inform("Pinning queue ~p in vhost ~p to disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), true]); - -action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> - Inform("Unpinning queue ~p in vhost ~p from disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), false]); - action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl deleted file mode 100644 index 5940f5ad..00000000 --- a/src/rabbit_disk_queue.erl +++ /dev/null @@ -1,1973 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_disk_queue). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([handle_pre_hibernate/1]). - --export([publish/3, deliver/1, phantom_deliver/1, ack/2, - tx_publish/1, tx_commit/3, tx_cancel/1, - requeue/2, purge/1, delete_queue/1, - delete_non_durable_queues/1, auto_ack_next_message/1, - requeue_next_n/2, length/1, foldl/3, prefetch/1 - ]). - --export([filesync/0, cache_info/0]). - --export([stop/0, stop_and_obliterate/0, report_memory/0, - set_mode/1, to_disk_only_mode/0, to_ram_disk_mode/0]). - --include("rabbit.hrl"). - --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_TRANSIENT, 255). --define(WRITE_OK_PERSISTENT, 254). --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(MSG_LOC_NAME, rabbit_disk_queue_msg_location). --define(FILE_SUMMARY_ETS_NAME, rabbit_disk_queue_file_summary). --define(SEQUENCE_ETS_NAME, rabbit_disk_queue_sequences). --define(CACHE_ETS_NAME, rabbit_disk_queue_cache). --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). --define(FILE_EXTENSION_DETS, ".dets"). --define(FILE_PACKING_ADJUSTMENT, (1 + (2* (?INTEGER_SIZE_BYTES)))). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds --define(BATCH_SIZE, 10000). --define(CACHE_MAX_SIZE, 10485760). - --define(SERVER, ?MODULE). - --define(MAX_READ_FILE_HANDLES, 256). --define(FILE_SIZE_LIMIT, (256*1024*1024)). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(dqstate, - {msg_location_dets, %% where are messages? - msg_location_ets, %% as above, but for ets version - operation_mode, %% ram_disk | disk_only - file_summary, %% what's in the files? - sequences, %% next read and write for each q - current_file_num, %% current file name as number - current_file_name, %% current file name - current_file_handle, %% current file handle - current_offset, %% current offset within current file - current_dirty, %% has the current file been written to - %% since the last fsync? - file_size_limit, %% how big can our files get? - read_file_handles, %% file handles for reading (LRU) - read_file_handles_limit, %% how many file handles can we open? - on_sync_txns, %% list of commiters to run on sync (reversed) - commit_timer_ref, %% TRef for our interval timer - last_sync_offset, %% current_offset at the last time we sync'd - message_cache, %% ets message cache - memory_report_timer, %% TRef for the memory report timer - wordsize, %% bytes in a word on this platform - mnesia_bytes_per_record, %% bytes per record in mnesia in ram_disk mode - ets_bytes_per_record %% bytes per record in msg_location_ets - }). - -%% The components: -%% -%% MsgLocation: this is a (d)ets table which contains: -%% {MsgId, RefCount, File, Offset, TotalSize, IsPersistent} -%% FileSummary: this is an ets table which contains: -%% {File, ValidTotalSize, ContiguousTop, Left, Right} -%% Sequences: this is an ets table which contains: -%% {Q, ReadSeqId, WriteSeqId} -%% rabbit_disk_queue: this is an mnesia table which contains: -%% #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, -%% is_delivered = IsDelivered, -%% msg_id = MsgId -%% } -%% - -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the MsgLocation table); how much useful data is in each file and -%% which files are on the left and right of each other. This is the -%% purpose of the FileSummary table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file, whilst ContiguousTop contains the amount of -%% valid data right at the start of each file. These are needed for -%% garbage collection. -%% -%% On publish, we write the message to disk, record the changes to -%% FileSummary and MsgLocation, and, should this be either a plain -%% publish, or followed by a tx_commit, we record the message in the -%% mnesia table. Sequences exists to enforce ordering of messages as -%% they are published within a queue. -%% -%% On delivery, we read the next message to be read from disk -%% (according to the ReadSeqId for the given queue) and record in the -%% mnesia table that the message has been delivered. -%% -%% On ack we remove the relevant entry from MsgLocation, update -%% FileSummary and delete from the mnesia table. -%% -%% In order to avoid extra mnesia searching, we return the SeqId -%% during delivery which must be returned in ack - it is not possible -%% to ack from MsgId alone. - -%% As messages are ack'd, holes develop in the files. When we discover -%% that either a file is now empty or that it can be combined with the -%% useful data in either its left or right file, we compact the two -%% files together. This keeps disk utilisation high and aids -%% performance. -%% -%% Given the compaction between two files, the left file is considered -%% the ultimate destination for the good data in the right file. If -%% necessary, the good data in the left file which is fragmented -%% throughout the file is written out to a temporary file, then read -%% back in to form a contiguous chunk of good data at the start of the -%% left file. Thus the left file is garbage collected and -%% compacted. Then the good data from the right file is copied onto -%% the end of the left file. MsgLocation and FileSummary tables are -%% updated. -%% -%% On startup, we scan the files we discover, dealing with the -%% possibilites of a crash have occured during a compaction (this -%% consists of tidyup - the compaction is deliberately designed such -%% that data is duplicated on disk rather than risking it being lost), -%% and rebuild the dets and ets tables (MsgLocation, FileSummary, -%% Sequences) from what we find. We ensure that the messages we have -%% discovered on disk match exactly with the messages recorded in the -%% mnesia table. - -%% MsgLocation is deliberately a dets table, and the mnesia table is -%% set to be a disk_only_table in order to ensure that we are not RAM -%% constrained. However, for performance reasons, it is possible to -%% call to_ram_disk_mode/0 which will alter the mnesia table to -%% disc_copies and convert MsgLocation to an ets table. This results -%% in a massive performance improvement, at the expense of greater RAM -%% usage. The idea is that when memory gets tight, we switch to -%% disk_only mode but otherwise try to run in ram_disk mode. - -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten (yes, this is -%% the data the size of which is tracked by the ContiguousTop -%% variable. Judicious use of a mirror is required). -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). - -%% ---- SPECS ---- - --ifdef(use_specs). - --type(seq_id() :: non_neg_integer()). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(publish/3 :: (queue_name(), message(), bool()) -> 'ok'). --spec(deliver/1 :: (queue_name()) -> - ('empty' | {message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}, non_neg_integer()})). --spec(phantom_deliver/1 :: (queue_name()) -> - ( 'empty' | {msg_id(), bool(), bool(), {msg_id(), seq_id()}, - non_neg_integer()})). --spec(prefetch/1 :: (queue_name()) -> 'ok'). --spec(ack/2 :: (queue_name(), [{msg_id(), seq_id()}]) -> 'ok'). --spec(auto_ack_next_message/1 :: (queue_name()) -> 'ok'). --spec(tx_publish/1 :: (message()) -> 'ok'). --spec(tx_commit/3 :: (queue_name(), [{msg_id(), bool()}], - [{msg_id(), seq_id()}]) -> 'ok'). --spec(tx_cancel/1 :: ([msg_id()]) -> 'ok'). --spec(requeue/2 :: (queue_name(), [{{msg_id(), seq_id()}, bool()}]) -> 'ok'). --spec(requeue_next_n/2 :: (queue_name(), non_neg_integer()) -> 'ok'). --spec(purge/1 :: (queue_name()) -> non_neg_integer()). --spec(delete_queue/1 :: (queue_name()) -> 'ok'). --spec(delete_non_durable_queues/1 :: (set()) -> 'ok'). --spec(length/1 :: (queue_name()) -> non_neg_integer()). --spec(foldl/3 :: (fun (({message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}}, A) -> - A), A, queue_name()) -> A). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_obliterate/0 :: () -> 'ok'). --spec(to_disk_only_mode/0 :: () -> 'ok'). --spec(to_ram_disk_mode/0 :: () -> 'ok'). --spec(filesync/0 :: () -> 'ok'). --spec(cache_info/0 :: () -> [{atom(), term()}]). --spec(report_memory/0 :: () -> 'ok'). --spec(set_mode/1 :: ('disk' | 'mixed') -> 'ok'). - --endif. - -%% ---- PUBLIC API ---- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, - [?FILE_SIZE_LIMIT, ?MAX_READ_FILE_HANDLES], []). - -publish(Q, Message = #basic_message {}, IsDelivered) -> - gen_server2:cast(?SERVER, {publish, Q, Message, IsDelivered}). - -deliver(Q) -> - gen_server2:call(?SERVER, {deliver, Q}, infinity). - -phantom_deliver(Q) -> - gen_server2:call(?SERVER, {phantom_deliver, Q}, infinity). - -prefetch(Q) -> - gen_server2:pcast(?SERVER, -1, {prefetch, Q, self()}). - -ack(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {ack, Q, MsgSeqIds}). - -auto_ack_next_message(Q) -> - gen_server2:cast(?SERVER, {auto_ack_next_message, Q}). - -tx_publish(Message = #basic_message {}) -> - gen_server2:cast(?SERVER, {tx_publish, Message}). - -tx_commit(Q, PubMsgIds, AckSeqIds) - when is_list(PubMsgIds) andalso is_list(AckSeqIds) -> - gen_server2:call(?SERVER, {tx_commit, Q, PubMsgIds, AckSeqIds}, infinity). - -tx_cancel(MsgIds) when is_list(MsgIds) -> - gen_server2:cast(?SERVER, {tx_cancel, MsgIds}). - -requeue(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {requeue, Q, MsgSeqIds}). - -requeue_next_n(Q, N) when is_integer(N) -> - gen_server2:cast(?SERVER, {requeue_next_n, Q, N}). - -purge(Q) -> - gen_server2:call(?SERVER, {purge, Q}, infinity). - -delete_queue(Q) -> - gen_server2:cast(?SERVER, {delete_queue, Q}). - -delete_non_durable_queues(DurableQueues) -> - gen_server2:call(?SERVER, {delete_non_durable_queues, DurableQueues}, - infinity). - -length(Q) -> - gen_server2:call(?SERVER, {length, Q}, infinity). - -foldl(Fun, Init, Acc) -> - gen_server2:call(?SERVER, {foldl, Fun, Init, Acc}, infinity). - -stop() -> - gen_server2:call(?SERVER, stop, infinity). - -stop_and_obliterate() -> - gen_server2:call(?SERVER, stop_vaporise, infinity). - -to_disk_only_mode() -> - gen_server2:pcall(?SERVER, 9, to_disk_only_mode, infinity). - -to_ram_disk_mode() -> - gen_server2:pcall(?SERVER, 9, to_ram_disk_mode, infinity). - -filesync() -> - gen_server2:pcast(?SERVER, 10, filesync). - -cache_info() -> - gen_server2:call(?SERVER, cache_info, infinity). - -report_memory() -> - gen_server2:cast(?SERVER, report_memory). - -set_mode(Mode) -> - gen_server2:pcast(?SERVER, 10, {set_mode, Mode}). - -%% ---- GEN-SERVER INTERNAL API ---- - -init([FileSizeLimit, ReadFileHandlesLimit]) -> - %% If the gen_server is part of a supervision tree and is ordered - %% by its supervisor to terminate, terminate will be called with - %% Reason=shutdown if the following conditions apply: - %% * the gen_server has been set to trap exit signals, and - %% * the shutdown strategy as defined in the supervisor's - %% child specification is an integer timeout value, not - %% brutal_kill. - %% Otherwise, the gen_server will be immediately terminated. - process_flag(trap_exit, true), - ok = rabbit_queue_mode_manager:register - (self(), true, rabbit_disk_queue, set_mode, []), - Node = node(), - ok = - case mnesia:change_table_copy_type(rabbit_disk_queue, Node, - disc_copies) of - {atomic, ok} -> ok; - {aborted, {already_exists, rabbit_disk_queue, Node, - disc_copies}} -> ok; - E -> E - end, - ok = filelib:ensure_dir(form_filename("nothing")), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - {ok, MsgLocationDets} = - dets:open_file(?MSG_LOC_NAME, - [{file, form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)}, - {min_no_slots, 1024*1024}, - %% man says this should be <= 32M. But it works... - {max_no_slots, 30*1024*1024}, - {type, set} - ]), - - %% it would be better to have this as private, but dets:from_ets/2 - %% seems to blow up if it is set private - MsgLocationEts = ets:new(?MSG_LOC_NAME, [set, protected]), - - TRef = start_memory_timer(), - - InitName = "0" ++ ?FILE_EXTENSION, - State = - #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - operation_mode = ram_disk, - file_summary = ets:new(?FILE_SUMMARY_ETS_NAME, - [set, private]), - sequences = ets:new(?SEQUENCE_ETS_NAME, - [set, private]), - current_file_num = 0, - current_file_name = InitName, - current_file_handle = undefined, - current_offset = 0, - current_dirty = false, - file_size_limit = FileSizeLimit, - read_file_handles = {dict:new(), gb_trees:empty()}, - read_file_handles_limit = ReadFileHandlesLimit, - on_sync_txns = [], - commit_timer_ref = undefined, - last_sync_offset = 0, - message_cache = ets:new(?CACHE_ETS_NAME, - [set, private]), - memory_report_timer = TRef, - wordsize = erlang:system_info(wordsize), - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined - }, - {ok, State1 = #dqstate { current_file_name = CurrentName, - current_offset = Offset } } = - load_from_disk(State), - Path = form_filename(CurrentName), - Exists = case file:read_file_info(Path) of - {error,enoent} -> false; - {ok, _} -> true - end, - %% read is only needed so that we can seek - {ok, FileHdl} = file:open(Path, [read, write, raw, binary, delayed_write]), - case Exists of - true -> {ok, Offset} = file:position(FileHdl, {bof, Offset}); - false -> %% new file, so preallocate - ok = preallocate(FileHdl, FileSizeLimit, Offset) - end, - State2 = State1 #dqstate { current_file_handle = FileHdl }, - %% by reporting a memory use of 0, we guarantee the manager will - %% grant us to ram_disk mode. We have to start in ram_disk mode - %% because we can't find values for mnesia_bytes_per_record or - %% ets_bytes_per_record otherwise. - ok = rabbit_queue_mode_manager:report_memory(self(), 0, false), - ok = report_memory(false, State2), - {ok, State2, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, true, false, true, State), - reply(Result, State1); -handle_call({phantom_deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, false, false, true, State), - reply(Result, State1); -handle_call({tx_commit, Q, PubMsgIds, AckSeqIds}, From, State) -> - State1 = - internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, State), - noreply(State1); -handle_call({purge, Q}, _From, State) -> - {ok, Count, State1} = internal_purge(Q, State), - reply(Count, State1); -handle_call({length, Q}, _From, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - reply(WriteSeqId - ReadSeqId, State); -handle_call({foldl, Fun, Init, Q}, _From, State) -> - {ok, Result, State1} = internal_foldl(Q, Fun, Init, State), - reply(Result, State1); -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; %% gen_server now calls terminate -handle_call(stop_vaporise, _From, State) -> - State1 = #dqstate { file_summary = FileSummary, - sequences = Sequences } = - shutdown(State), %% tidy up file handles early - {atomic, ok} = mnesia:clear_table(rabbit_disk_queue), - true = ets:delete(FileSummary), - true = ets:delete(Sequences), - lists:foreach(fun file:delete/1, filelib:wildcard(form_filename("*"))), - {stop, normal, ok, - State1 #dqstate { current_file_handle = undefined, - read_file_handles = {dict:new(), gb_trees:empty()}}}; - %% gen_server now calls terminate, which then calls shutdown -handle_call(to_disk_only_mode, _From, State) -> - reply(ok, to_disk_only_mode(State)); -handle_call(to_ram_disk_mode, _From, State) -> - reply(ok, to_ram_disk_mode(State)); -handle_call({delete_non_durable_queues, DurableQueues}, _From, State) -> - {ok, State1} = internal_delete_non_durable_queues(DurableQueues, State), - reply(ok, State1); -handle_call(cache_info, _From, State = #dqstate { message_cache = Cache }) -> - reply(ets:info(Cache), State). - -handle_cast({publish, Q, Message, IsDelivered}, State) -> - {ok, _MsgSeqId, State1} = internal_publish(Q, Message, IsDelivered, State), - noreply(State1); -handle_cast({ack, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_ack(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({auto_ack_next_message, Q}, State) -> - {ok, State1} = internal_auto_ack(Q, State), - noreply(State1); -handle_cast({tx_publish, Message}, State) -> - {ok, State1} = internal_tx_publish(Message, State), - noreply(State1); -handle_cast({tx_cancel, MsgIds}, State) -> - {ok, State1} = internal_tx_cancel(MsgIds, State), - noreply(State1); -handle_cast({requeue, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_requeue(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({requeue_next_n, Q, N}, State) -> - {ok, State1} = internal_requeue_next_n(Q, N, State), - noreply(State1); -handle_cast({delete_queue, Q}, State) -> - {ok, State1} = internal_delete_queue(Q, State), - noreply(State1); -handle_cast(filesync, State) -> - noreply(sync_current_file_handle(State)); -handle_cast({set_mode, Mode}, State) -> - noreply((case Mode of - disk -> fun to_disk_only_mode/1; - mixed -> fun to_ram_disk_mode/1 - end)(State)); -handle_cast(report_memory, State) -> - %% call noreply1/2, not noreply/1/2, as we don't want to restart the - %% memory_report_timer - %% by unsetting the timer, we force a report on the next normal message - noreply1(State #dqstate { memory_report_timer = undefined }); -handle_cast({prefetch, Q, From}, State) -> - {ok, Result, State1} = internal_deliver(Q, true, true, false, State), - Cont = rabbit_misc:with_exit_handler( - fun () -> false end, - fun () -> - ok = rabbit_queue_prefetcher:publish(From, Result), - true - end), - State3 = - case Cont of - true -> - case internal_deliver(Q, false, false, true, State1) of - {ok, empty, State2} -> State2; - {ok, {_MsgId, _IsPersistent, _Delivered, _MsgSeqId, _Rem}, - State2} -> State2 - end; - false -> State1 - end, - noreply(State3). - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(timeout, State) -> - %% must have commit_timer set, so timeout was 0, and we're not hibernating - noreply(sync_current_file_handle(State)). - -handle_pre_hibernate(State) -> - %% don't use noreply/1 or noreply1/1 as they'll restart the memory timer - ok = report_memory(true, State), - {hibernate, stop_memory_timer(State)}. - -terminate(_Reason, State) -> - shutdown(State). - -shutdown(State = #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - current_file_handle = FileHdl, - read_file_handles = {ReadHdls, _ReadHdlsAge} - }) -> - %% deliberately ignoring return codes here - State1 = stop_commit_timer(stop_memory_timer(State)), - dets:close(MsgLocationDets), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - true = ets:delete_all_objects(MsgLocationEts), - case FileHdl of - undefined -> ok; - _ -> sync_current_file_handle(State), - file:close(FileHdl) - end, - dict:fold(fun (_File, Hdl, _Acc) -> - file:close(Hdl) - end, ok, ReadHdls), - State1 #dqstate { current_file_handle = undefined, - current_dirty = false, - read_file_handles = {dict:new(), gb_trees:empty()}, - memory_report_timer = undefined - }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%% ---- UTILITY FUNCTIONS ---- - -stop_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #dqstate { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { memory_report_timer = undefined }. - -start_memory_timer() -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_disk_queue, report_memory, []), - TRef. - -start_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - ok = report_memory(false, State), - State #dqstate { memory_report_timer = start_memory_timer() }; -start_memory_timer(State) -> - State. - -report_memory(Hibernating, State) -> - Bytes = memory_use(State), - rabbit_queue_mode_manager:report_memory(self(), trunc(2.5 * Bytes), - Hibernating). - -memory_use(#dqstate { operation_mode = ram_disk, - file_summary = FileSummary, - sequences = Sequences, - msg_location_ets = MsgLocationEts, - message_cache = Cache, - wordsize = WordSize - }) -> - WordSize * (mnesia:table_info(rabbit_disk_queue, memory) + - ets:info(MsgLocationEts, memory) + - ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory)); -memory_use(#dqstate { operation_mode = disk_only, - file_summary = FileSummary, - sequences = Sequences, - msg_location_dets = MsgLocationDets, - message_cache = Cache, - wordsize = WordSize, - mnesia_bytes_per_record = MnesiaBytesPerRecord, - ets_bytes_per_record = EtsBytesPerRecord }) -> - MnesiaSizeEstimate = - mnesia:table_info(rabbit_disk_queue, size) * MnesiaBytesPerRecord, - MsgLocationSizeEstimate = - dets:info(MsgLocationDets, size) * EtsBytesPerRecord, - (WordSize * (ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory))) + - rabbit_misc:ceil(MnesiaSizeEstimate) + - rabbit_misc:ceil(MsgLocationSizeEstimate). - -to_disk_only_mode(State = #dqstate { operation_mode = disk_only }) -> - State; -to_disk_only_mode(State = #dqstate { operation_mode = ram_disk, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - wordsize = WordSize }) -> - rabbit_log:info("Converting disk queue to disk only mode~n", []), - MnesiaMemoryBytes = WordSize * mnesia:table_info(rabbit_disk_queue, memory), - MnesiaSize = lists:max([1, mnesia:table_info(rabbit_disk_queue, size)]), - EtsMemoryBytes = WordSize * ets:info(MsgLocationEts, memory), - EtsSize = lists:max([1, ets:info(MsgLocationEts, size)]), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_only_copies), - ok = dets:from_ets(MsgLocationDets, MsgLocationEts), - true = ets:delete_all_objects(MsgLocationEts), - garbage_collect(), - State #dqstate { operation_mode = disk_only, - mnesia_bytes_per_record = MnesiaMemoryBytes / MnesiaSize, - ets_bytes_per_record = EtsMemoryBytes / EtsSize }. - -to_ram_disk_mode(State = #dqstate { operation_mode = ram_disk }) -> - State; -to_ram_disk_mode(State = #dqstate { operation_mode = disk_only, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts }) -> - rabbit_log:info("Converting disk queue to ram disk mode~n", []), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_copies), - true = ets:from_dets(MsgLocationEts, MsgLocationDets), - ok = dets:delete_all_objects(MsgLocationDets), - garbage_collect(), - State #dqstate { operation_mode = ram_disk, - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined }. - -noreply(NewState) -> - noreply1(start_memory_timer(NewState)). - -noreply1(NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {noreply, NewState, hibernate}; -noreply1(NewState = #dqstate { commit_timer_ref = undefined }) -> - {noreply, start_commit_timer(NewState), 0}; -noreply1(NewState = #dqstate { on_sync_txns = [] }) -> - {noreply, stop_commit_timer(NewState), hibernate}; -noreply1(NewState) -> - {noreply, NewState, 0}. - -reply(Reply, NewState) -> - reply1(Reply, start_memory_timer(NewState)). - -reply1(Reply, NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {reply, Reply, NewState, hibernate}; -reply1(Reply, NewState = #dqstate { commit_timer_ref = undefined }) -> - {reply, Reply, start_commit_timer(NewState), 0}; -reply1(Reply, NewState = #dqstate { on_sync_txns = [] }) -> - {reply, Reply, stop_commit_timer(NewState), hibernate}; -reply1(Reply, NewState) -> - {reply, Reply, NewState, 0}. - -form_filename(Name) -> - filename:join(base_directory(), Name). - -base_directory() -> - filename:join(mnesia:system_info(directory), "rabbit_disk_queue/"). - -dets_ets_lookup(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - dets:lookup(MsgLocationDets, Key); -dets_ets_lookup(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - ets:lookup(MsgLocationEts, Key). - -dets_ets_delete(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - ok = dets:delete(MsgLocationDets, Key); -dets_ets_delete(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - true = ets:delete(MsgLocationEts, Key), - ok. - -dets_ets_insert(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - ok = dets:insert(MsgLocationDets, Obj); -dets_ets_insert(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert(MsgLocationEts, Obj), - ok. - -dets_ets_insert_new(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - true = dets:insert_new(MsgLocationDets, Obj); -dets_ets_insert_new(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert_new(MsgLocationEts, Obj). - -dets_ets_match_object(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - dets:match_object(MsgLocationDets, Obj); -dets_ets_match_object(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - ets:match_object(MsgLocationEts, Obj). - -get_read_handle(File, Offset, State = - #dqstate { read_file_handles = {ReadHdls, ReadHdlsAge}, - read_file_handles_limit = ReadFileHandlesLimit, - current_file_name = CurName, - current_dirty = IsDirty, - last_sync_offset = SyncOffset - }) -> - State1 = if CurName =:= File andalso IsDirty andalso Offset >= SyncOffset -> - sync_current_file_handle(State); - true -> State - end, - Now = now(), - {FileHdl, ReadHdls1, ReadHdlsAge1} = - case dict:find(File, ReadHdls) of - error -> - {ok, Hdl} = file:open(form_filename(File), - [read, raw, binary, - read_ahead]), - case dict:size(ReadHdls) < ReadFileHandlesLimit of - true -> - {Hdl, ReadHdls, ReadHdlsAge}; - _False -> - {Then, OldFile, ReadHdlsAge2} = - gb_trees:take_smallest(ReadHdlsAge), - {ok, {OldHdl, Then}} = - dict:find(OldFile, ReadHdls), - ok = file:close(OldHdl), - {Hdl, dict:erase(OldFile, ReadHdls), ReadHdlsAge2} - end; - {ok, {Hdl, Then}} -> - {Hdl, ReadHdls, gb_trees:delete(Then, ReadHdlsAge)} - end, - ReadHdls2 = dict:store(File, {FileHdl, Now}, ReadHdls1), - ReadHdlsAge3 = gb_trees:enter(Now, File, ReadHdlsAge1), - {FileHdl, - State1 #dqstate { read_file_handles = {ReadHdls2, ReadHdlsAge3} }}. - -sequence_lookup(Sequences, Q) -> - case ets:lookup(Sequences, Q) of - [] -> - {0, 0}; - [{Q, ReadSeqId, WriteSeqId}] -> - {ReadSeqId, WriteSeqId} - end. - -start_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, filesync, []), - State #dqstate { commit_timer_ref = TRef }. - -stop_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - State; -stop_commit_timer(State = #dqstate { commit_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { commit_timer_ref = undefined }. - -sync_current_file_handle(State = #dqstate { current_dirty = false, - on_sync_txns = [] }) -> - State; -sync_current_file_handle(State = #dqstate { current_file_handle = CurHdl, - current_dirty = IsDirty, - current_offset = CurOffset, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - SyncOffset1 = case IsDirty of - true -> ok = file:sync(CurHdl), - CurOffset; - false -> SyncOffset - end, - State1 = lists:foldl(fun internal_do_tx_commit/2, State, lists:reverse(Txns)), - State1 #dqstate { current_dirty = false, on_sync_txns = [], - last_sync_offset = SyncOffset1 }. - -msg_to_bin(Msg = #basic_message { content = Content }) -> - ClearedContent = rabbit_binary_parser:clear_decoded_content(Content), - term_to_binary(Msg #basic_message { content = ClearedContent }). - -bin_to_msg(MsgBin) -> - binary_to_term(MsgBin). - -remove_cache_entry(MsgId, #dqstate { message_cache = Cache }) -> - true = ets:delete(Cache, MsgId), - ok. - -fetch_and_increment_cache(MsgId, #dqstate { message_cache = Cache }) -> - case ets:lookup(Cache, MsgId) of - [] -> - not_found; - [{MsgId, Message, MsgSize, _RefCount}] -> - NewRefCount = ets:update_counter(Cache, MsgId, {4, 1}), - {Message, MsgSize, NewRefCount} - end. - -decrement_cache(MsgId, #dqstate { message_cache = Cache }) -> - true = try case ets:update_counter(Cache, MsgId, {4, -1}) of - N when N =< 0 -> true = ets:delete(Cache, MsgId); - _N -> true - end - catch error:badarg -> - %% MsgId is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message in mixed queue) - true - end, - ok. - -insert_into_cache(Message = #basic_message { guid = MsgId }, MsgSize, - Forced, State = #dqstate { message_cache = Cache }) -> - case cache_is_full(State) of - true -> ok; - false -> Count = case Forced of - true -> 0; - false -> 1 - end, - true = ets:insert_new(Cache, {MsgId, Message, - MsgSize, Count}), - ok - end. - -cache_is_full(#dqstate { message_cache = Cache }) -> - ets:info(Cache, memory) > ?CACHE_MAX_SIZE. - -%% ---- INTERNAL RAW FUNCTIONS ---- - -internal_deliver(Q, ReadMsg, FakeDeliver, Advance, - State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, empty, State}; - {ReadSeqId, WriteSeqId} when WriteSeqId >= ReadSeqId -> - Remaining = WriteSeqId - ReadSeqId - 1, - {ok, Result, State1} = - internal_read_message( - Q, ReadSeqId, ReadMsg, FakeDeliver, false, State), - true = case Advance of - true -> ets:insert(Sequences, - {Q, ReadSeqId+1, WriteSeqId}); - false -> true - end, - {ok, - case Result of - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}} -> - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}, - Remaining}; - {Message, BodySize, Delivered, {MsgId, ReadSeqId}} -> - {Message, BodySize, Delivered, {MsgId, ReadSeqId}, - Remaining} - end, State1} - end. - -internal_foldl(Q, Fun, Init, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - internal_foldl(Q, WriteSeqId, Fun, State, Init, ReadSeqId). - -internal_foldl(_Q, SeqId, _Fun, State, Acc, SeqId) -> - {ok, Acc, State}; -internal_foldl(Q, WriteSeqId, Fun, State, Acc, ReadSeqId) -> - {ok, MsgStuff, State1} - = internal_read_message(Q, ReadSeqId, true, true, false, State), - Acc1 = Fun(MsgStuff, Acc), - internal_foldl(Q, WriteSeqId, Fun, State1, Acc1, ReadSeqId + 1). - -internal_read_message(Q, ReadSeqId, ReadMsg, FakeDeliver, ForceInCache, State) -> - [Obj = - #dq_msg_loc {is_delivered = Delivered, msg_id = MsgId}] = - mnesia:dirty_read(rabbit_disk_queue, {Q, ReadSeqId}), - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - ok = - if FakeDeliver orelse Delivered -> ok; - true -> - mnesia:dirty_write(rabbit_disk_queue, - Obj #dq_msg_loc {is_delivered = true}) - end, - case ReadMsg of - true -> - case fetch_and_increment_cache(MsgId, State) of - not_found -> - {FileHdl, State1} = get_read_handle(File, Offset, State), - {ok, {MsgBody, IsPersistent, BodySize}} = - read_message_at_offset(FileHdl, Offset, TotalSize), - #basic_message { is_persistent=IsPersistent, guid=MsgId } = - Message = bin_to_msg(MsgBody), - ok = if RefCount > 1 orelse ForceInCache -> - insert_into_cache - (Message, BodySize, ForceInCache, State1); - true -> ok - %% it's not in the cache and we only - %% have 1 queue with the message. So - %% don't bother putting it in the - %% cache. - end, - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State1}; - {Message, BodySize, _RefCount} -> - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State} - end; - false -> - {ok, {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}}, State} - end. - -internal_auto_ack(Q, State) -> - case internal_deliver(Q, false, false, true, State) of - {ok, empty, State1} -> {ok, State1}; - {ok, {_MsgId, _IsPersistent, _Delivered, MsgSeqId, _Remaining}, - State1} -> - remove_messages(Q, [MsgSeqId], true, State1) - end. - -internal_ack(Q, MsgSeqIds, State) -> - remove_messages(Q, MsgSeqIds, true, State). - -%% Q is only needed if MnesiaDelete /= false -remove_messages(Q, MsgSeqIds, MnesiaDelete, - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - Files = - lists:foldl( - fun ({MsgId, SeqId}, Files1) -> - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - Files2 = - case RefCount of - 1 -> - ok = dets_ets_delete(State, MsgId), - ok = remove_cache_entry(MsgId, State), - [{File, ValidTotalSize, ContiguousTop, - Left, Right}] = ets:lookup(FileSummary, File), - ContiguousTop1 = - lists:min([ContiguousTop, Offset]), - true = - ets:insert(FileSummary, - {File, (ValidTotalSize-TotalSize- - ?FILE_PACKING_ADJUSTMENT), - ContiguousTop1, Left, Right}), - if CurName =:= File -> Files1; - true -> sets:add_element(File, Files1) - end; - _ when 1 < RefCount -> - ok = decrement_cache(MsgId, State), - ok = dets_ets_insert( - State, {MsgId, RefCount - 1, File, Offset, - TotalSize, IsPersistent}), - Files1 - end, - ok = case MnesiaDelete of - true -> mnesia:dirty_delete(rabbit_disk_queue, - {Q, SeqId}); - txn -> mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write); - _ -> ok - end, - Files2 - end, sets:new(), MsgSeqIds), - State1 = compact(Files, State), - {ok, State1}. - -internal_tx_publish(Message = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, - State = #dqstate { current_file_handle = CurHdl, - current_file_name = CurName, - current_offset = CurOffset, - file_summary = FileSummary - }) -> - case dets_ets_lookup(State, MsgId) of - [] -> - %% New message, lots to do - {ok, TotalSize} = append_message(CurHdl, MsgId, msg_to_bin(Message), - IsPersistent), - true = dets_ets_insert_new - (State, {MsgId, 1, CurName, - CurOffset, TotalSize, IsPersistent}), - [{CurName, ValidTotalSize, ContiguousTop, Left, undefined}] = - ets:lookup(FileSummary, CurName), - ValidTotalSize1 = ValidTotalSize + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - ContiguousTop1 = if CurOffset =:= ContiguousTop -> - %% can't be any holes in this file - ValidTotalSize1; - true -> ContiguousTop - end, - true = ets:insert(FileSummary, {CurName, ValidTotalSize1, - ContiguousTop1, Left, undefined}), - NextOffset = CurOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - maybe_roll_to_new_file( - NextOffset, State #dqstate {current_offset = NextOffset, - current_dirty = true}); - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] -> - %% We already know about it, just update counter - ok = dets_ets_insert(State, {MsgId, RefCount + 1, File, - Offset, TotalSize, IsPersistent}), - {ok, State} - end. - -internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, - State = #dqstate { current_file_name = CurFile, - current_dirty = IsDirty, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - NeedsSync = IsDirty andalso - lists:any(fun ({MsgId, _Delivered}) -> - [{MsgId, _RefCount, File, Offset, - _TotalSize, _IsPersistent}] = - dets_ets_lookup(State, MsgId), - File =:= CurFile andalso Offset >= SyncOffset - end, PubMsgIds), - TxnDetails = {Q, PubMsgIds, AckSeqIds, From}, - case NeedsSync of - true -> - Txns1 = [TxnDetails | Txns], - State #dqstate { on_sync_txns = Txns1 }; - false -> - internal_do_tx_commit(TxnDetails, State) - end. - -internal_do_tx_commit({Q, PubMsgIds, AckSeqIds, From}, - State = #dqstate { sequences = Sequences }) -> - {InitReadSeqId, InitWriteSeqId} = sequence_lookup(Sequences, Q), - WriteSeqId = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {ok, WriteSeqId1} = - lists:foldl( - fun ({MsgId, Delivered}, {ok, SeqId}) -> - {mnesia:write( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, - msg_id = MsgId, - is_delivered = Delivered - }, write), - SeqId + 1} - end, {ok, InitWriteSeqId}, PubMsgIds), - WriteSeqId1 - end), - {ok, State1} = remove_messages(Q, AckSeqIds, true, State), - true = case PubMsgIds of - [] -> true; - _ -> ets:insert(Sequences, {Q, InitReadSeqId, WriteSeqId}) - end, - gen_server2:reply(From, ok), - State1. - -internal_publish(Q, Message = #basic_message { guid = MsgId }, - IsDelivered, State) -> - {ok, State1 = #dqstate { sequences = Sequences }} = - internal_tx_publish(Message, State), - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - ok = mnesia:dirty_write(rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, WriteSeqId}, - msg_id = MsgId, - is_delivered = IsDelivered}), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId + 1}), - {ok, {MsgId, WriteSeqId}, State1}. - -internal_tx_cancel(MsgIds, State) -> - %% we don't need seq ids because we're not touching mnesia, - %% because seqids were never assigned - MsgSeqIds = lists:zip(MsgIds, lists:duplicate(erlang:length(MsgIds), - undefined)), - remove_messages(undefined, MsgSeqIds, false, State). - -internal_requeue(_Q, [], State) -> - {ok, State}; -internal_requeue(Q, MsgSeqIds, State = #dqstate { sequences = Sequences }) -> - %% We know that every seq_id in here is less than the ReadSeqId - %% you'll get if you look up this queue in Sequences (i.e. they've - %% already been delivered). We also know that the rows for these - %% messages are still in rabbit_disk_queue (i.e. they've not been - %% ack'd). - - %% Now, it would be nice if we could adjust the sequence ids in - %% rabbit_disk_queue (mnesia) to create a contiguous block and - %% then drop the ReadSeqId for the queue by the corresponding - %% amount. However, this is not safe because there may be other - %% sequence ids which have been sent out as part of deliveries - %% which are not being requeued. As such, moving things about in - %% rabbit_disk_queue _under_ the current ReadSeqId would result in - %% such sequence ids referring to the wrong messages. - - %% Therefore, the only solution is to take these messages, and to - %% reenqueue them at the top of the queue. Usefully, this only - %% affects the Sequences and rabbit_disk_queue structures - there - %% is no need to physically move the messages about on disk, so - %% MsgLocation and FileSummary stay put (which makes further sense - %% as they have no concept of sequence id anyway). - - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - {WriteSeqId1, Q, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foldl(fun requeue_message/2, {WriteSeqId, Q, []}, - MsgSeqIds) - end), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId1}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State}. - -requeue_message({{MsgId, SeqId}, IsDelivered}, {WriteSeqId, Q, Acc}) -> - [Obj = #dq_msg_loc { is_delivered = true, msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, SeqId}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeqId}, - is_delivered = IsDelivered - }, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write), - {WriteSeqId + 1, Q, [MsgId | Acc]}. - -%% move the next N messages from the front of the queue to the back. -internal_requeue_next_n(Q, N, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - if N >= (WriteSeqId - ReadSeqId) -> {ok, State}; - true -> - {ReadSeqIdN, WriteSeqIdN, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - requeue_next_messages(Q, N, ReadSeqId, WriteSeqId, []) - end - ), - true = ets:insert(Sequences, {Q, ReadSeqIdN, WriteSeqIdN}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State} - end. - -requeue_next_messages(_Q, 0, ReadSeq, WriteSeq, Acc) -> - {ReadSeq, WriteSeq, Acc}; -requeue_next_messages(Q, N, ReadSeq, WriteSeq, Acc) -> - [Obj = #dq_msg_loc { msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, ReadSeq}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeq}}, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, ReadSeq}, write), - requeue_next_messages(Q, N - 1, ReadSeq + 1, WriteSeq + 1, [MsgId | Acc]). - -internal_purge(Q, State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, 0, State}; - {ReadSeqId, WriteSeqId} -> - {MsgSeqIds, WriteSeqId} = - rabbit_misc:unfold( - fun (SeqId) when SeqId == WriteSeqId -> false; - (SeqId) -> - [#dq_msg_loc { msg_id = MsgId }] = - mnesia:dirty_read(rabbit_disk_queue, {Q, SeqId}), - {true, {MsgId, SeqId}, SeqId + 1} - end, ReadSeqId), - true = ets:insert(Sequences, {Q, WriteSeqId, WriteSeqId}), - {ok, State1} = remove_messages(Q, MsgSeqIds, true, State), - {ok, WriteSeqId - ReadSeqId, State1} - end. - -internal_delete_queue(Q, State) -> - {ok, _Count, State1 = #dqstate { sequences = Sequences }} = - internal_purge(Q, State), %% remove everything undelivered - true = ets:delete(Sequences, Q), - %% now remove everything already delivered - Objs = mnesia:dirty_match_object( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, '_'}, - msg_id = '_', - is_delivered = '_' - }), - MsgSeqIds = - lists:map( - fun (#dq_msg_loc { queue_and_seq_id = {_Q, SeqId}, - msg_id = MsgId }) -> - {MsgId, SeqId} end, Objs), - remove_messages(Q, MsgSeqIds, true, State1). - -internal_delete_non_durable_queues( - DurableQueues, State = #dqstate { sequences = Sequences }) -> - ets:foldl( - fun ({Q, _Read, _Write}, {ok, State1}) -> - case sets:is_element(Q, DurableQueues) of - true -> {ok, State1}; - false -> internal_delete_queue(Q, State1) - end - end, {ok, State}, Sequences). - -%% ---- ROLLING OVER THE APPEND FILE ---- - -maybe_roll_to_new_file(Offset, - State = #dqstate { file_size_limit = FileSizeLimit, - current_file_name = CurName, - current_file_handle = CurHdl, - current_file_num = CurNum, - file_summary = FileSummary - } - ) when Offset >= FileSizeLimit -> - State1 = sync_current_file_handle(State), - ok = file:close(CurHdl), - NextNum = CurNum + 1, - NextName = integer_to_list(NextNum) ++ ?FILE_EXTENSION, - {ok, NextHdl} = file:open(form_filename(NextName), - [write, raw, binary, delayed_write]), - ok = preallocate(NextHdl, FileSizeLimit, 0), - true = ets:update_element(FileSummary, CurName, {5, NextName}),%% 5 is Right - true = ets:insert_new(FileSummary, {NextName, 0, 0, CurName, undefined}), - State2 = State1 #dqstate { current_file_name = NextName, - current_file_handle = NextHdl, - current_file_num = NextNum, - current_offset = 0, - last_sync_offset = 0 - }, - {ok, compact(sets:from_list([CurName]), State2)}; -maybe_roll_to_new_file(_, State) -> - {ok, State}. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file:position(Hdl, {bof, FileSizeLimit}), - ok = file:truncate(Hdl), - {ok, FinalPos} = file:position(Hdl, {bof, FinalPos}), - ok. - -%% ---- GARBAGE COLLECTION / COMPACTION / AGGREGATION ---- - -compact(FilesSet, State) -> - %% smallest number, hence eldest, hence left-most, first - Files = lists:sort(sets:to_list(FilesSet)), - %% foldl reverses, so now youngest/right-most first - RemainingFiles = lists:foldl(fun (File, Acc) -> - delete_empty_files(File, Acc, State) - end, [], Files), - lists:foldl(fun combine_file/2, State, lists:reverse(RemainingFiles)). - -combine_file(File, State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - %% the file we're looking at may no longer exist as it may have - %% been deleted within the current GC run - case ets:lookup(FileSummary, File) of - [] -> State; - [FileObj = {File, _ValidData, _ContiguousTop, Left, Right}] -> - GoRight = - fun() -> - case Right of - undefined -> State; - _ when not (CurName == Right) -> - [RightObj] = ets:lookup(FileSummary, Right), - {_, State1} = - adjust_meta_and_combine(FileObj, RightObj, - State), - State1; - _ -> State - end - end, - case Left of - undefined -> - GoRight(); - _ -> [LeftObj] = ets:lookup(FileSummary, Left), - case adjust_meta_and_combine(LeftObj, FileObj, State) of - {true, State1} -> State1; - {false, State} -> GoRight() - end - end - end. - -adjust_meta_and_combine( - LeftObj = {LeftFile, LeftValidData, _LeftContigTop, LeftLeft, RightFile}, - RightObj = {RightFile, RightValidData, _RightContigTop, LeftFile, RightRight}, - State = #dqstate { file_size_limit = FileSizeLimit, - file_summary = FileSummary - }) -> - TotalValidData = LeftValidData + RightValidData, - if FileSizeLimit >= TotalValidData -> - State1 = combine_files(RightObj, LeftObj, State), - %% this could fail if RightRight is undefined - %% left is the 4th field - ets:update_element(FileSummary, RightRight, {4, LeftFile}), - true = ets:insert(FileSummary, {LeftFile, - TotalValidData, TotalValidData, - LeftLeft, - RightRight}), - true = ets:delete(FileSummary, RightFile), - {true, State1}; - true -> {false, State} - end. - -sort_msg_locations_by_offset(Asc, List) -> - Comp = case Asc of - true -> fun erlang:'<'/2; - false -> fun erlang:'>'/2 - end, - lists:sort(fun ({_, _, _, OffA, _, _}, {_, _, _, OffB, _, _}) -> - Comp(OffA, OffB) - end, List). - -truncate_and_extend_file(FileHdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file:position(FileHdl, {bof, Lowpoint}), - ok = file:truncate(FileHdl), - ok = preallocate(FileHdl, Highpoint, Lowpoint). - -combine_files({Source, SourceValid, _SourceContiguousTop, - _SourceLeft, _SourceRight}, - {Destination, DestinationValid, DestinationContiguousTop, - _DestinationLeft, _DestinationRight}, - State1) -> - State = close_file(Source, close_file(Destination, State1)), - {ok, SourceHdl} = - file:open(form_filename(Source), - [read, write, raw, binary, read_ahead, delayed_write]), - {ok, DestinationHdl} = - file:open(form_filename(Destination), - [read, write, raw, binary, read_ahead, delayed_write]), - ExpectedSize = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - if DestinationContiguousTop =:= DestinationValid -> - ok = truncate_and_extend_file(DestinationHdl, - DestinationValid, ExpectedSize); - true -> - Tmp = filename:rootname(Destination) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = - file:open(form_filename(Tmp), - [read, write, raw, binary, - read_ahead, delayed_write]), - Worklist = - lists:dropwhile( - fun ({_, _, _, Offset, _, _}) - when Offset /= DestinationContiguousTop -> - %% it cannot be that Offset == - %% DestinationContiguousTop because if it - %% was then DestinationContiguousTop would - %% have been extended by TotalSize - Offset < DestinationContiguousTop - %% Given expected access patterns, I suspect - %% that the list should be naturally sorted - %% as we require, however, we need to - %% enforce it anyway - end, sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Destination, - '_', '_', '_'}))), - ok = copy_messages( - Worklist, DestinationContiguousTop, DestinationValid, - DestinationHdl, TmpHdl, Destination, State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage from - %% Destination, and MsgLocationDets has been updated to - %% reflect compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file:position(TmpHdl, {bof, 0}), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, ExpectedSize), - {ok, TmpSize} = file:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file:sync(DestinationHdl), - ok = file:close(TmpHdl), - ok = file:delete(form_filename(Tmp)) - end, - SourceWorkList = - sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Source, - '_', '_', '_'})), - ok = copy_messages(SourceWorkList, DestinationValid, ExpectedSize, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file:sync(DestinationHdl), - ok = file:close(SourceHdl), - ok = file:close(DestinationHdl), - ok = file:delete(form_filename(Source)), - State. - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, State) -> - {FinalOffset, BlockStart1, BlockEnd1} = - lists:foldl( - fun ({MsgId, RefCount, _Source, Offset, TotalSize, IsPersistent}, - {CurOffset, BlockStart, BlockEnd}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - Size = TotalSize + ?FILE_PACKING_ADJUSTMENT, - %% update MsgLocationDets to reflect change of file and offset - ok = dets_ets_insert - (State, {MsgId, RefCount, Destination, - CurOffset, TotalSize, IsPersistent}), - NextOffset = CurOffset + Size, - if BlockStart =:= undefined -> - %% base case, called only for the first list elem - {NextOffset, Offset, Offset + Size}; - Offset =:= BlockEnd -> - %% extend the current block because the next - %% msg follows straight on - {NextOffset, BlockStart, BlockEnd + Size}; - true -> - %% found a gap, so actually do the work for - %% the previous block - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file:position(SourceHdl, {bof, BlockStart}), - {ok, BSize} = - file:copy(SourceHdl, DestinationHdl, BSize), - {NextOffset, Offset, Offset + Size} - end - end, {InitOffset, undefined, undefined}, WorkList), - %% do the last remaining block - BSize1 = BlockEnd1 - BlockStart1, - {ok, BlockStart1} = file:position(SourceHdl, {bof, BlockStart1}), - {ok, BSize1} = file:copy(SourceHdl, DestinationHdl, BSize1), - ok. - -close_file(File, State = #dqstate { read_file_handles = - {ReadHdls, ReadHdlsAge} }) -> - case dict:find(File, ReadHdls) of - error -> - State; - {ok, {Hdl, Then}} -> - ok = file:close(Hdl), - State #dqstate { read_file_handles = - { dict:erase(File, ReadHdls), - gb_trees:delete(Then, ReadHdlsAge) } } - end. - -delete_empty_files(File, Acc, #dqstate { file_summary = FileSummary }) -> - [{File, ValidData, _ContiguousTop, Left, Right}] = - ets:lookup(FileSummary, File), - case ValidData of - %% we should NEVER find the current file in here hence right - %% should always be a file, not undefined - 0 -> - case {Left, Right} of - {undefined, _} when not (is_atom(Right)) -> - %% the eldest file is empty. YAY! - %% left is the 4th field - true = - ets:update_element(FileSummary, Right, {4, undefined}); - {_, _} when not (is_atom(Right)) -> - %% left is the 4th field - true = ets:update_element(FileSummary, Right, {4, Left}), - %% right is the 5th field - true = ets:update_element(FileSummary, Left, {5, Right}) - end, - true = ets:delete(FileSummary, File), - ok = file:delete(form_filename(File)), - Acc; - _ -> [File|Acc] - end. - -%% ---- DISK RECOVERY ---- - -add_index() -> - case mnesia:add_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - {aborted,{already_exists,rabbit_disk_queue,_}} -> ok; - E -> E - end. - -del_index() -> - case mnesia:del_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - %% hmm, something weird must be going on, but it's probably - %% not the end of the world - {aborted, {no_exists, rabbit_disk_queue,_}} -> ok; - E1 -> E1 - end. - -load_from_disk(State) -> - %% sorted so that smallest number is first. which also means - %% eldest file (left-most) first - ok = add_index(), - {Files, TmpFiles} = get_disk_queue_files(), - ok = recover_crashed_compactions(Files, TmpFiles), - %% There should be no more tmp files now, so go ahead and load the - %% whole lot - State1 = load_messages(undefined, Files, State), - %% Finally, check there is nothing in mnesia which we haven't - %% loaded - State2 = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {State6, FinalQ, MsgSeqIds2, _Len} = - mnesia:foldl( - fun (#dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = {Q, SeqId} }, - {State3, OldQ, MsgSeqIds, Len}) -> - {State4, MsgSeqIds1, Len1} = - case {OldQ == Q, MsgSeqIds} of - {true, _} when Len < ?BATCH_SIZE -> - {State3, MsgSeqIds, Len}; - {false, []} -> {State3, MsgSeqIds, Len}; - {_, _} -> - {ok, State5} = - remove_messages(Q, MsgSeqIds, - txn, State3), - {State5, [], 0} - end, - case dets_ets_lookup(State4, MsgId) of - [] -> ok = mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write), - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, true}] -> - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, false}] -> - {State4, Q, - [{MsgId, SeqId} | MsgSeqIds1], Len1+1} - end - end, {State1, undefined, [], 0}, rabbit_disk_queue), - {ok, State7} = - remove_messages(FinalQ, MsgSeqIds2, txn, State6), - State7 - end), - State8 = extract_sequence_numbers(State2), - ok = del_index(), - {ok, State8}. - -extract_sequence_numbers(State = #dqstate { sequences = Sequences }) -> - true = rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:read_lock_table(rabbit_disk_queue), - mnesia:foldl( - fun (#dq_msg_loc { queue_and_seq_id = {Q, SeqId} }, true) -> - NextWrite = SeqId + 1, - case ets:lookup(Sequences, Q) of - [] -> ets:insert_new(Sequences, - {Q, SeqId, NextWrite}); - [Orig = {Q, Read, Write}] -> - Repl = {Q, lists:min([Read, SeqId]), - lists:max([Write, NextWrite])}, - case Orig == Repl of - true -> true; - false -> ets:insert(Sequences, Repl) - end - end - end, true, rabbit_disk_queue) - end), - ok = remove_gaps_in_sequences(State), - State. - -remove_gaps_in_sequences(#dqstate { sequences = Sequences }) -> - %% read the comments at internal_requeue. - - %% Because we are at startup, we know that no sequence ids have - %% been issued (or at least, they were, but have been - %% forgotten). Therefore, we can nicely shuffle up and not - %% worry. Note that I'm choosing to shuffle up, but alternatively - %% we could shuffle downwards. However, I think there's greater - %% likelihood of gaps being at the bottom rather than the top of - %% the queue, so shuffling up should be the better bet. - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foreach( - fun ({Q, ReadSeqId, WriteSeqId}) -> - Gap = shuffle_up(Q, ReadSeqId-1, WriteSeqId-1, 0), - ReadSeqId1 = ReadSeqId + Gap, - true = ets:insert(Sequences, - {Q, ReadSeqId1, WriteSeqId}) - end, ets:match_object(Sequences, '_')) - end), - ok. - -shuffle_up(_Q, SeqId, SeqId, Gap) -> - Gap; -shuffle_up(Q, BaseSeqId, SeqId, Gap) -> - GapInc = - case mnesia:read(rabbit_disk_queue, {Q, SeqId}, write) of - [] -> 1; - [Obj] -> - case Gap of - 0 -> ok; - _ -> mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc { - queue_and_seq_id = {Q, SeqId + Gap }}, - write), - mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write) - end, - 0 - end, - shuffle_up(Q, BaseSeqId, SeqId - 1, Gap + GapInc). - -load_messages(undefined, [], - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName }) -> - true = ets:insert_new(FileSummary, {CurName, 0, 0, undefined, undefined}), - State; -load_messages(Left, [], State) -> - Num = list_to_integer(filename:rootname(Left)), - Offset = - case dets_ets_match_object(State, {'_', '_', Left, '_', '_', '_'}) of - [] -> 0; - L -> - [ {_MsgId, _RefCount, Left, MaxOffset, TotalSize, _IsPersistent} - | _ ] = sort_msg_locations_by_offset(false, L), - MaxOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT - end, - State #dqstate { current_file_num = Num, current_file_name = Left, - current_offset = Offset }; -load_messages(Left, [File|Files], - State = #dqstate { file_summary = FileSummary }) -> - %% [{MsgId, TotalSize, FileOffset}] - {ok, Messages} = scan_file_for_valid_messages(form_filename(File)), - {ValidMessagesRev, ValidTotalSize} = lists:foldl( - fun (Obj = {MsgId, IsPersistent, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) of - 0 -> {VMAcc, VTSAcc}; - RefCount -> - true = dets_ets_insert_new - (State, {MsgId, RefCount, File, - Offset, TotalSize, IsPersistent}), - {[Obj | VMAcc], - VTSAcc + TotalSize + ?FILE_PACKING_ADJUSTMENT - } - end - end, {[], 0}, Messages), - %% foldl reverses lists and find_contiguous_block_prefix needs - %% elems in the same order as from scan_file_for_valid_messages - {ContiguousTop, _} = find_contiguous_block_prefix( - lists:reverse(ValidMessagesRev)), - Right = case Files of - [] -> undefined; - [F|_] -> F - end, - true = ets:insert_new(FileSummary, - {File, ValidTotalSize, ContiguousTop, Left, Right}), - load_messages(File, Files, State). - -%% ---- DISK RECOVERY OF FAILED COMPACTION ---- - -recover_crashed_compactions(Files, TmpFiles) -> - lists:foreach(fun (TmpFile) -> - ok = recover_crashed_compactions1(Files, TmpFile) end, - TmpFiles), - ok. - -verify_messages_in_mnesia(MsgIds) -> - lists:foreach( - fun (MsgId) -> - true = 0 < erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) - end, MsgIds). - -grab_msg_id({MsgId, _IsPersistent, _TotalSize, _FileOffset}) -> - MsgId. - -recover_crashed_compactions1(Files, TmpFile) -> - NonTmpRelatedFile = filename:rootname(TmpFile) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFile, Files), - %% [{MsgId, TotalSize, FileOffset}] - {ok, UncorruptedMessagesTmp} = - scan_file_for_valid_messages(form_filename(TmpFile)), - MsgIdsTmp = lists:map(fun grab_msg_id/1, UncorruptedMessagesTmp), - %% all of these messages should appear in the mnesia table, - %% otherwise they wouldn't have been copied out - verify_messages_in_mnesia(MsgIdsTmp), - {ok, UncorruptedMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIds = lists:map(fun grab_msg_id/1, UncorruptedMessages), - %% 1) It's possible that everything in the tmp file is also in the - %% main file such that the main file is (prefix ++ - %% tmpfile). This means that compaction failed immediately - %% prior to the final step of deleting the tmp file. Plan: just - %% delete the tmp file - %% 2) It's possible that everything in the tmp file is also in the - %% main file but with holes throughout (or just somthing like - %% main = (prefix ++ hole ++ tmpfile)). This means that - %% compaction wrote out the tmp file successfully and then - %% failed. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 3) It's possible that everything in the tmp file is also in the - %% main file but such that the main file does not end with tmp - %% file (and there are valid messages in the suffix; main = - %% (prefix ++ tmpfile[with extra holes?] ++ suffix)). This - %% means that compaction failed as we were writing out the tmp - %% file. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 4) It's possible that there are messages in the tmp file which - %% are not in the main file. This means that writing out the - %% tmp file succeeded, but then we failed as we were copying - %% them back over to the main file, after truncating the main - %% file. As the main file has already been truncated, it should - %% consist only of valid messages. Plan: Truncate the main file - %% back to before any of the files in the tmp file and copy - %% them over again - case lists:all(fun (MsgId) -> lists:member(MsgId, MsgIds) end, MsgIdsTmp) of - true -> %% we're in case 1, 2 or 3 above. Just delete the tmp file - %% note this also catches the case when the tmp file - %% is empty - ok = file:delete(TmpFile); - _False -> - %% we're in case 4 above. Check that everything in the - %% main file is a valid message in mnesia - verify_messages_in_mnesia(MsgIds), - %% The main file should be contiguous - {Top, MsgIds} = find_contiguous_block_prefix(UncorruptedMessages), - %% we should have that none of the messages in the prefix - %% are in the tmp file - true = lists:all(fun (MsgId) -> - not (lists:member(MsgId, MsgIdsTmp)) - end, MsgIds), - {ok, MainHdl} = file:open(form_filename(NonTmpRelatedFile), - [write, raw, binary, delayed_write]), - {ok, Top} = file:position(MainHdl, Top), - %% wipe out any rubbish at the end of the file - ok = file:truncate(MainHdl), - %% there really could be rubbish at the end of the file - - %% we could have failed after the extending truncate. - %% Remember the head of the list will be the highest entry - %% in the file - [{_, _, TmpTopTotalSize, TmpTopOffset}|_] = UncorruptedMessagesTmp, - TmpSize = TmpTopOffset + TmpTopTotalSize + ?FILE_PACKING_ADJUSTMENT, - ExpectedAbsPos = Top + TmpSize, - {ok, ExpectedAbsPos} = file:position(MainHdl, {cur, TmpSize}), - %% and now extend the main file as big as necessary in a - %% single move if we run out of disk space, this truncate - %% could fail, but we still aren't risking losing data - ok = file:truncate(MainHdl), - {ok, TmpHdl} = file:open(form_filename(TmpFile), - [read, raw, binary, read_ahead]), - {ok, TmpSize} = file:copy(TmpHdl, MainHdl, TmpSize), - ok = file:close(MainHdl), - ok = file:close(TmpHdl), - ok = file:delete(TmpFile), - - {ok, MainMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIdsMain = lists:map(fun grab_msg_id/1, MainMessages), - %% check that everything in MsgIds is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIds), - %% check that everything in MsgIdsTmp is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIdsTmp) - end, - ok. - -%% this assumes that the messages are ordered such that the highest -%% address is at the head of the list. This matches what -%% scan_file_for_valid_messages produces -find_contiguous_block_prefix([]) -> {0, []}; -find_contiguous_block_prefix([ {MsgId, _IsPersistent, TotalSize, Offset} - | Tail]) -> - case find_contiguous_block_prefix(Tail, Offset, [MsgId]) of - {ok, Acc} -> {Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - lists:reverse(Acc)}; - Res -> Res - end. -find_contiguous_block_prefix([], 0, Acc) -> - {ok, Acc}; -find_contiguous_block_prefix([], _N, _Acc) -> - {0, []}; -find_contiguous_block_prefix([{MsgId, _IsPersistent, TotalSize, Offset} | Tail], - ExpectedOffset, Acc) - when ExpectedOffset =:= Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT -> - find_contiguous_block_prefix(Tail, Offset, [MsgId|Acc]); -find_contiguous_block_prefix(List, _ExpectedOffset, _Acc) -> - find_contiguous_block_prefix(List). - -file_name_sort(A, B) -> - ANum = list_to_integer(filename:rootname(A)), - BNum = list_to_integer(filename:rootname(B)), - ANum < BNum. - -get_disk_queue_files() -> - DQFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION, base_directory()), - DQFilesSorted = lists:sort(fun file_name_sort/2, DQFiles), - DQTFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION_TMP, base_directory()), - DQTFilesSorted = lists:sort(fun file_name_sort/2, DQTFiles), - {DQFilesSorted, DQTFilesSorted}. - -%% ---- RAW READING AND WRITING OF FILES ---- - -append_message(FileHdl, MsgId, MsgBody, IsPersistent) when is_binary(MsgBody) -> - BodySize = size(MsgBody), - MsgIdBin = term_to_binary(MsgId), - MsgIdBinSize = size(MsgIdBin), - TotalSize = BodySize + MsgIdBinSize, - StopByte = case IsPersistent of - true -> ?WRITE_OK_PERSISTENT; - false -> ?WRITE_OK_TRANSIENT - end, - case file:write(FileHdl, <>) of - ok -> {ok, TotalSize}; - KO -> KO - end. - -read_message_at_offset(FileHdl, Offset, TotalSize) -> - TotalSizeWriteOkBytes = TotalSize + 1, - case file:position(FileHdl, {bof, Offset}) of - {ok, Offset} -> - case file:read(FileHdl, TotalSize + ?FILE_PACKING_ADJUSTMENT) of - {ok, <>} -> - BodySize = TotalSize - MsgIdBinSize, - case Rest of - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_TRANSIENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, false, BodySize}}; - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_PERSISTENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, true, BodySize}} - end; - KO -> KO - end; - KO -> KO - end. - -scan_file_for_valid_messages(File) -> - {ok, Hdl} = file:open(File, [raw, binary, read]), - Valid = scan_file_for_valid_messages(Hdl, 0, []), - %% if something really bad's happened, the close could fail, but ignore - file:close(Hdl), - Valid. - -scan_file_for_valid_messages(FileHdl, Offset, Acc) -> - case read_next_file_entry(FileHdl, Offset) of - {ok, eof} -> {ok, Acc}; - {ok, {corrupted, NextOffset}} -> - scan_file_for_valid_messages(FileHdl, NextOffset, Acc); - {ok, {ok, MsgId, IsPersistent, TotalSize, NextOffset}} -> - scan_file_for_valid_messages( - FileHdl, NextOffset, - [{MsgId, IsPersistent, TotalSize, Offset} | Acc]); - _KO -> - %% bad message, but we may still have recovered some valid messages - {ok, Acc} - end. - -read_next_file_entry(FileHdl, Offset) -> - TwoIntegers = 2 * ?INTEGER_SIZE_BYTES, - case file:read(FileHdl, TwoIntegers) of - {ok, - <>} -> - case {TotalSize =:= 0, MsgIdBinSize =:= 0} of - {true, _} -> {ok, eof}; %% Nothing we can do other than stop - {false, true} -> - %% current message corrupted, try skipping past it - ExpectedAbsPos = - Offset + ?FILE_PACKING_ADJUSTMENT + TotalSize, - case file:position(FileHdl, {cur, TotalSize + 1}) of - {ok, ExpectedAbsPos} -> - {ok, {corrupted, ExpectedAbsPos}}; - {ok, _SomeOtherPos} -> - {ok, eof}; %% seek failed, so give up - KO -> KO - end; - {false, false} -> %% all good, let's continue - case file:read(FileHdl, MsgIdBinSize) of - {ok, <>} -> - ExpectedAbsPos = Offset + TwoIntegers + TotalSize, - case file:position(FileHdl, - {cur, TotalSize - MsgIdBinSize} - ) of - {ok, ExpectedAbsPos} -> - NextOffset = Offset + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - case file:read(FileHdl, 1) of - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - false, TotalSize, NextOffset}}; - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - true, TotalSize, NextOffset}}; - {ok, _SomeOtherData} -> - {ok, {corrupted, NextOffset}}; - KO -> KO - end; - {ok, _SomeOtherPos} -> - %% seek failed, so give up - {ok, eof}; - KO -> KO - end; - eof -> {ok, eof}; - KO -> KO - end - end; - eof -> {ok, eof}; - KO -> KO - end. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl index 3aa2989a..2be00503 100644 --- a/src/rabbit_guid.erl +++ b/src/rabbit_guid.erl @@ -42,7 +42,6 @@ terminate/2, code_change/3]). -define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_guid"). -record(state, {serial}). @@ -60,24 +59,17 @@ %%---------------------------------------------------------------------------- start_link() -> + %% The persister can get heavily loaded, and we don't want that to + %% impact guid generation. We therefore keep the serial in a + %% separate process rather than calling rabbit_persister:serial/0 + %% directly in the functions below. gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(mnesia:system_info(directory), ?SERIAL_FILENAME), - Serial = case file:read_file(Filename) of - {ok, Content} -> - binary_to_term(Content); - {error, _} -> - 0 - end, - ok = file:write_file(Filename, term_to_binary(Serial + 1)), - Serial. + [rabbit_persister:serial()], []). %% generate a guid that is monotonically increasing per process. %% %% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. +%% persistent message store hasn't been deleted. guid() -> %% We don't use erlang:now() here because a) it may return %% duplicates when the system clock has been rewound prior to a @@ -85,7 +77,7 @@ guid() -> %% now() to move ahead of the system time), and b) it is really %% slow since it takes a global lock and makes a system call. %% - %% A persisted serial number, in combination with self/0 (which + %% rabbit_persister:serial/0, in combination with self/0 (which %% includes the node name) uniquely identifies a process in space %% and time. We combine that with a process-local counter to give %% us a GUID that is monotonically increasing per process. diff --git a/src/rabbit_memsup.erl b/src/rabbit_memsup.erl deleted file mode 100644 index 5f242881..00000000 --- a/src/rabbit_memsup.erl +++ /dev/null @@ -1,126 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0]). - --record(state, {memory_fraction, - timeout, - timer, - mod, - mod_state - }). - --define(SERVER, memsup). %% must be the same as the standard memsup - --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (atom()) -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(update/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -update() -> - gen_server:cast(?SERVER, update). - -%%---------------------------------------------------------------------------- - -init([Mod]) -> - Fraction = os_mon:get_env(memsup, system_memory_high_watermark), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - InitState = Mod:init(), - State = #state { memory_fraction = Fraction, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - mod = Mod, - mod_state = Mod:update(Fraction, InitState) }, - {ok, State}. - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% Export the same API as the real memsup. Note that -%% get_sysmem_high_watermark gives an int in the range 0 - 100, while -%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. -handle_call(get_sysmem_high_watermark, _From, State) -> - {reply, trunc(100 * State#state.memory_fraction), State}; - -handle_call({set_sysmem_high_watermark, Float}, _From, State) -> - {reply, ok, State#state{memory_fraction = Float}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_data, _From, - State = #state { mod = Mod, mod_state = ModState }) -> - {reply, Mod:get_memory_data(ModState), State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State = #state { memory_fraction = MemoryFraction, - mod = Mod, mod_state = ModState }) -> - ModState1 = Mod:update(MemoryFraction, ModState), - {noreply, State #state { mod_state = ModState1 }}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_memsup_darwin.erl b/src/rabbit_memsup_darwin.erl deleted file mode 100644 index 990c5b99..00000000 --- a/src/rabbit_memsup_darwin.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup_darwin). - --export([init/0, update/2, get_memory_data/1]). - --record(state, {alarmed, - total_memory, - allocated_memory}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). - --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). - --endif. - -%%---------------------------------------------------------------------------- - -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. - -update(MemoryFraction, State = #state{ alarmed = Alarmed }) -> - File = os:cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), - PageSize = dict:fetch(page_size, Dict), - Inactive = dict:fetch('Pages inactive', Dict), - Active = dict:fetch('Pages active', Dict), - Free = dict:fetch('Pages free', Dict), - Wired = dict:fetch('Pages wired down', Dict), - MemTotal = PageSize * (Inactive + Active + Free + Wired), - MemUsed = PageSize * (Active + Wired), - NewAlarmed = MemUsed / MemTotal > MemoryFraction, - case {Alarmed, NewAlarmed} of - {false, true} -> - alarm_handler:set_alarm({system_memory_high_watermark, []}); - {true, false} -> - alarm_handler:clear_alarm(system_memory_high_watermark); - _ -> - ok - end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. - -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. - -%%---------------------------------------------------------------------------- - -%% A line looks like "Foo bar: 123456." -parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. diff --git a/src/rabbit_memsup_linux.erl b/src/rabbit_memsup_linux.erl index 460fd88f..ffdc7e99 100644 --- a/src/rabbit_memsup_linux.erl +++ b/src/rabbit_memsup_linux.erl @@ -31,36 +31,74 @@ -module(rabbit_memsup_linux). --export([init/0, update/2, get_memory_data/1]). +-behaviour(gen_server). --record(state, {alarmed, - total_memory, - allocated_memory}). +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([update/0]). + +-define(SERVER, memsup). %% must be the same as the standard memsup + +-define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). + +-record(state, {memory_fraction, alarmed, timeout, timer}). %%---------------------------------------------------------------------------- -ifdef(use_specs). --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(update/0 :: () -> 'ok'). + +-endif. --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). +%%---------------------------------------------------------------------------- --endif. +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + + +update() -> + gen_server:cast(?SERVER, update). %%---------------------------------------------------------------------------- -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. +init(_Args) -> + Fraction = os_mon:get_env(memsup, system_memory_high_watermark), + TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), + {ok, #state{alarmed = false, + memory_fraction = Fraction, + timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, + timer = TRef}}. -update(MemoryFraction, State = #state { alarmed = Alarmed }) -> +start_timer(Timeout) -> + {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), + TRef. + +%% Export the same API as the real memsup. Note that +%% get_sysmem_high_watermark gives an int in the range 0 - 100, while +%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. +handle_call(get_sysmem_high_watermark, _From, State) -> + {reply, trunc(100 * State#state.memory_fraction), State}; + +handle_call({set_sysmem_high_watermark, Float}, _From, State) -> + {reply, ok, State#state{memory_fraction = Float}}; + +handle_call(get_check_interval, _From, State) -> + {reply, State#state.timeout, State}; + +handle_call({set_check_interval, Timeout}, _From, State) -> + {ok, cancel} = timer:cancel(State#state.timer), + {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; + +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast(update, State = #state{alarmed = Alarmed, + memory_fraction = MemoryFraction}) -> File = read_proc_file("/proc/meminfo"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), @@ -78,11 +116,19 @@ update(MemoryFraction, State = #state { alarmed = Alarmed }) -> _ -> ok end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. + {noreply, State#state{alarmed = NewAlarmed}}; + +handle_cast(_Request, State) -> + {noreply, State}. + +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok. -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. +code_change(_OldVsn, State, _Extra) -> + {ok, State}. %%---------------------------------------------------------------------------- @@ -106,10 +152,5 @@ read_proc_file(IoDevice, Acc) -> %% A line looks like "FooBar: 123456 kB" parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. + [Name, Value | _] = string:tokens(Line, ": "), + {list_to_atom(Name), list_to_integer(Value)}. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index c328c111..abf4c7cc 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -53,7 +53,6 @@ -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, keygets/2]). -import(mnesia). -import(lists). @@ -117,11 +116,7 @@ -spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). -spec(start_applications/1 :: ([atom()]) -> 'ok'). -spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> number()). --spec(keygets/2 :: ([({K, V} | {K, non_neg_integer(), V})], [any()]) -> - [({K, V} | any())]). - + -endif. %%---------------------------------------------------------------------------- @@ -365,8 +360,7 @@ dirty_foreach_key1(F, TableName, K) -> end. dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, - {file, FileName}]), + {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, {file, FileName}]), dirty_dump_log1(LH, disk_log:chunk(LH, start)), disk_log:close(LH). @@ -450,33 +444,3 @@ stop_applications(Apps) -> cannot_stop_application, Apps). -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N - T of - 0 -> N; - _ -> 1 + T - end. - -keygets(Keys, KeyList) -> - lists:reverse( - lists:foldl( - fun({Key, Pos, Default}, Acc) -> - case lists:keysearch(Key, Pos, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end; - ({Key, Default}, Acc) -> - case lists:keysearch(Key, 1, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end - end, [], Keys)). diff --git a/src/rabbit_mixed_queue.erl b/src/rabbit_mixed_queue.erl deleted file mode 100644 index 4b0810a8..00000000 --- a/src/rabbit_mixed_queue.erl +++ /dev/null @@ -1,596 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_mixed_queue). - --include("rabbit.hrl"). - --export([init/2]). - --export([publish/2, publish_delivered/2, deliver/1, ack/2, - tx_publish/2, tx_commit/3, tx_cancel/2, requeue/2, purge/1, - length/1, is_empty/1, delete_queue/1, maybe_prefetch/1]). - --export([to_disk_only_mode/2, to_mixed_mode/2, info/1, - estimate_queue_memory_and_reset_counters/1]). - --record(mqstate, { mode, - msg_buf, - queue, - is_durable, - length, - memory_size, - memory_gain, - memory_loss, - prefetcher - } - ). - --define(TO_DISK_MAX_FLUSH_SIZE, 100000). - --ifdef(use_specs). - --type(mode() :: ( 'disk' | 'mixed' )). --type(mqstate() :: #mqstate { mode :: mode(), - msg_buf :: queue(), - queue :: queue_name(), - is_durable :: bool(), - length :: non_neg_integer(), - memory_size :: (non_neg_integer() | 'undefined'), - memory_gain :: (non_neg_integer() | 'undefined'), - memory_loss :: (non_neg_integer() | 'undefined'), - prefetcher :: (pid() | 'undefined') - }). --type(acktag() :: ( 'noack' | { non_neg_integer(), non_neg_integer() })). --type(okmqs() :: {'ok', mqstate()}). - --spec(init/2 :: (queue_name(), bool()) -> okmqs()). --spec(publish/2 :: (message(), mqstate()) -> okmqs()). --spec(publish_delivered/2 :: (message(), mqstate()) -> - {'ok', acktag(), mqstate()}). --spec(deliver/1 :: (mqstate()) -> - {('empty' | {message(), bool(), acktag(), non_neg_integer()}), - mqstate()}). --spec(ack/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(tx_publish/2 :: (message(), mqstate()) -> okmqs()). --spec(tx_commit/3 :: ([message()], [acktag()], mqstate()) -> okmqs()). --spec(tx_cancel/2 :: ([message()], mqstate()) -> okmqs()). --spec(requeue/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(purge/1 :: (mqstate()) -> okmqs()). - --spec(delete_queue/1 :: (mqstate()) -> {'ok', mqstate()}). - --spec(length/1 :: (mqstate()) -> non_neg_integer()). --spec(is_empty/1 :: (mqstate()) -> bool()). - --spec(to_disk_only_mode/2 :: ([message()], mqstate()) -> okmqs()). --spec(to_mixed_mode/2 :: ([message()], mqstate()) -> okmqs()). - --spec(estimate_queue_memory_and_reset_counters/1 :: (mqstate()) -> - {mqstate(), non_neg_integer(), non_neg_integer(), - non_neg_integer()}). --spec(info/1 :: (mqstate()) -> mode()). - --endif. - -init(Queue, IsDurable) -> - Len = rabbit_disk_queue:length(Queue), - MsgBuf = inc_queue_length(Queue, queue:new(), Len), - Size = rabbit_disk_queue:foldl( - fun ({Msg = #basic_message { is_persistent = true }, - _Size, _IsDelivered, _AckTag}, Acc) -> - Acc + size_of_message(Msg) - end, 0, Queue), - {ok, #mqstate { mode = disk, msg_buf = MsgBuf, queue = Queue, - is_durable = IsDurable, length = Len, - memory_size = Size, memory_gain = undefined, - memory_loss = undefined, prefetcher = undefined }}. - -size_of_message( - #basic_message { content = #content { payload_fragments_rev = Payload }}) -> - lists:foldl(fun (Frag, SumAcc) -> - SumAcc + size(Frag) - end, 0, Payload). - -to_disk_only_mode(_TxnMessages, State = #mqstate { mode = disk }) -> - {ok, State}; -to_disk_only_mode(TxnMessages, State = - #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, prefetcher = Prefetcher - }) -> - rabbit_log:info("Converting queue to disk only mode: ~p~n", [Q]), - State1 = State #mqstate { mode = disk }, - {MsgBuf1, State2} = - case Prefetcher of - undefined -> {MsgBuf, State1}; - _ -> - case rabbit_queue_prefetcher:drain_and_stop(Prefetcher) of - empty -> {MsgBuf, State1}; - {Fetched, Len} -> - State3 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State1), - {queue:join(Fetched, MsgBuf2), State3} - end - end, - %% We enqueue _everything_ here. This means that should a message - %% already be in the disk queue we must remove it and add it back - %% in. Fortunately, by using requeue, we avoid rewriting the - %% message on disk. - %% Note we also batch together messages on disk so that we minimise - %% the calls to requeue. - {ok, MsgBuf3} = - send_messages_to_disk(IsDurable, Q, MsgBuf1, 0, 0, [], queue:new()), - %% tx_publish txn messages. Some of these will have been already - %% published if they really are durable and persistent which is - %% why we can't just use our own tx_publish/2 function (would end - %% up publishing twice, so refcount would go wrong in disk_queue). - lists:foreach( - fun (Msg = #basic_message { is_persistent = IsPersistent }) -> - ok = case IsDurable andalso IsPersistent of - true -> ok; - _ -> rabbit_disk_queue:tx_publish(Msg) - end - end, TxnMessages), - garbage_collect(), - {ok, State2 #mqstate { msg_buf = MsgBuf3, prefetcher = undefined }}. - -send_messages_to_disk(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf) -> - case queue:out(Queue) of - {empty, _Queue} -> - ok = flush_messages_to_disk_queue(Q, Commit), - [] = flush_requeue_to_disk_queue(Q, RequeueCount, []), - {ok, MsgBuf}; - {{value, {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered}}, Queue1} -> - case IsDurable andalso IsPersistent of - true -> %% it's already in the Q - send_messages_to_disk( - IsDurable, Q, Queue1, PublishCount, RequeueCount + 1, - Commit, inc_queue_length(Q, MsgBuf, 1)); - false -> - republish_message_to_disk_queue( - IsDurable, Q, Queue1, PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered) - end; - {{value, {Msg, IsDelivered, _AckTag}}, Queue1} -> - %% these have come via the prefetcher, so are no longer in - %% the disk queue so they need to be republished - republish_message_to_disk_queue(IsDelivered, Q, Queue1, - PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered); - {{value, {Q, Count}}, Queue1} -> - send_messages_to_disk(IsDurable, Q, Queue1, PublishCount, - RequeueCount + Count, Commit, - inc_queue_length(Q, MsgBuf, Count)) - end. - -republish_message_to_disk_queue(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf, Msg = - #basic_message { guid = MsgId }, IsDelivered) -> - Commit1 = flush_requeue_to_disk_queue(Q, RequeueCount, Commit), - ok = rabbit_disk_queue:tx_publish(Msg), - {PublishCount1, Commit2} = - case PublishCount == ?TO_DISK_MAX_FLUSH_SIZE of - true -> ok = flush_messages_to_disk_queue(Q, Commit1), - {1, [{MsgId, IsDelivered}]}; - false -> {PublishCount + 1, [{MsgId, IsDelivered} | Commit1]} - end, - send_messages_to_disk(IsDurable, Q, Queue, PublishCount1, 0, - Commit2, inc_queue_length(Q, MsgBuf, 1)). - -flush_messages_to_disk_queue(_Q, []) -> - ok; -flush_messages_to_disk_queue(Q, Commit) -> - rabbit_disk_queue:tx_commit(Q, lists:reverse(Commit), []). - -flush_requeue_to_disk_queue(_Q, 0, Commit) -> - Commit; -flush_requeue_to_disk_queue(Q, RequeueCount, Commit) -> - ok = flush_messages_to_disk_queue(Q, Commit), - ok = rabbit_disk_queue:requeue_next_n(Q, RequeueCount), - []. - -to_mixed_mode(_TxnMessages, State = #mqstate { mode = mixed }) -> - {ok, State}; -to_mixed_mode(TxnMessages, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable }) -> - rabbit_log:info("Converting queue to mixed mode: ~p~n", [Q]), - %% The queue has a token just saying how many msgs are on disk - %% (this is already built for us when in disk mode). - %% Don't actually do anything to the disk - %% Don't start prefetcher just yet because the queue maybe busy - - %% wait for hibernate timeout in the amqqueue_process. - - %% Remove txn messages from disk which are neither persistent and - %% durable. This is necessary to avoid leaks. This is also pretty - %% much the inverse behaviour of our own tx_cancel/2 which is why - %% we're not using it. - Cancel = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent }, Acc) -> - case IsDurable andalso IsPersistent of - true -> Acc; - false -> [Msg #basic_message.guid | Acc] - end - end, [], TxnMessages), - ok = if Cancel == [] -> ok; - true -> rabbit_disk_queue:tx_cancel(Cancel) - end, - garbage_collect(), - {ok, State #mqstate { mode = mixed }}. - -inc_queue_length(_Q, MsgBuf, 0) -> - MsgBuf; -inc_queue_length(Q, MsgBuf, Count) -> - {NewCount, MsgBufTail} = - case queue:out_r(MsgBuf) of - {empty, MsgBuf1} -> {Count, MsgBuf1}; - {{value, {Q, Len}}, MsgBuf1} -> {Len + Count, MsgBuf1}; - {{value, _}, _MsgBuf1} -> {Count, MsgBuf} - end, - queue:in({Q, NewCount}, MsgBufTail). - -dec_queue_length(Count, State = #mqstate { queue = Q, msg_buf = MsgBuf }) -> - case queue:out(MsgBuf) of - {{value, {Q, Len}}, MsgBuf1} -> - case Len of - Count -> - maybe_prefetch(State #mqstate { msg_buf = MsgBuf1 }); - _ when Len > Count -> - State #mqstate { msg_buf = queue:in_r({Q, Len-Count}, - MsgBuf1)} - end; - _ -> State - end. - -maybe_prefetch(State = #mqstate { prefetcher = undefined, - mode = mixed, - msg_buf = MsgBuf, - queue = Q }) -> - case queue:peek(MsgBuf) of - {value, {Q, Count}} -> {ok, Prefetcher} = - rabbit_queue_prefetcher:start_link(Q, Count), - State #mqstate { prefetcher = Prefetcher }; - _ -> State - end; -maybe_prefetch(State) -> - State. - -publish(Msg, State = #mqstate { mode = disk, queue = Q, length = Length, - msg_buf = MsgBuf, memory_size = QSize, - memory_gain = Gain }) -> - MsgBuf1 = inc_queue_length(Q, MsgBuf, 1), - ok = rabbit_disk_queue:publish(Q, Msg, false), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_gain = Gain + MsgSize, - memory_size = QSize + MsgSize, - msg_buf = MsgBuf1, length = Length + 1 }}; -publish(Msg = #basic_message { is_persistent = IsPersistent }, State = - #mqstate { queue = Q, mode = mixed, is_durable = IsDurable, - msg_buf = MsgBuf, length = Length, memory_size = QSize, - memory_gain = Gain }) -> - ok = case IsDurable andalso IsPersistent of - true -> rabbit_disk_queue:publish(Q, Msg, false); - false -> ok - end, - MsgSize = size_of_message(Msg), - {ok, State #mqstate { msg_buf = queue:in({Msg, false}, MsgBuf), - length = Length + 1, memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -%% Assumption here is that the queue is empty already (only called via -%% attempt_immediate_delivery). -publish_delivered(Msg = - #basic_message { guid = MsgId, is_persistent = IsPersistent}, - State = - #mqstate { mode = Mode, is_durable = IsDurable, - queue = Q, length = 0, - memory_size = QSize, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:publish(Q, Msg, true), - MsgSize = size_of_message(Msg), - State1 = State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }, - case IsDurable andalso IsPersistent of - true -> - %% must call phantom_deliver otherwise the msg remains at - %% the head of the queue. This is synchronous, but - %% unavoidable as we need the AckTag - {MsgId, IsPersistent, true, AckTag, 0} = - rabbit_disk_queue:phantom_deliver(Q), - {ok, AckTag, State1}; - false -> - %% in this case, we don't actually care about the ack, so - %% auto ack it (asynchronously). - ok = rabbit_disk_queue:auto_ack_next_message(Q), - {ok, noack, State1} - end; -publish_delivered(Msg, State = - #mqstate { mode = mixed, length = 0, memory_size = QSize, - memory_gain = Gain }) -> - MsgSize = size_of_message(Msg), - {ok, noack, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -deliver(State = #mqstate { length = 0 }) -> - {empty, State}; -deliver(State = #mqstate { msg_buf = MsgBuf, queue = Q, - is_durable = IsDurable, length = Length, - prefetcher = Prefetcher }) -> - {{value, Value}, MsgBuf1} = queue:out(MsgBuf), - Rem = Length - 1, - State1 = State #mqstate { length = Rem }, - case Value of - {Msg = #basic_message { guid = MsgId, is_persistent = IsPersistent }, - IsDelivered} -> - AckTag = - case IsDurable andalso IsPersistent of - true -> - {MsgId, IsPersistent, IsDelivered, AckTag1, _PRem} - = rabbit_disk_queue:phantom_deliver(Q), - AckTag1; - false -> - noack - end, - State2 = maybe_prefetch(State1 #mqstate { msg_buf = MsgBuf1 }), - {{Msg, IsDelivered, AckTag, Rem}, State2}; - {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTag} -> - %% message has come via the prefetcher, thus it's been - %% delivered. If it's not persistent+durable, we should - %% ack it now - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, - State1 #mqstate { msg_buf = MsgBuf1 }}; - _ when Prefetcher == undefined -> - State2 = dec_queue_length(1, State1), - {Msg = #basic_message { is_persistent = IsPersistent }, - _Size, IsDelivered, AckTag, _PersistRem} - = rabbit_disk_queue:deliver(Q), - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, State2}; - _ -> - case rabbit_queue_prefetcher:drain(Prefetcher) of - empty -> deliver(State #mqstate { prefetcher = undefined }); - {Fetched, Len, Status} -> - State2 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State), - deliver(State2 #mqstate - { msg_buf = queue:join(Fetched, MsgBuf2), - prefetcher = case Status of - finished -> undefined; - continuing -> Prefetcher - end }) - end - end. - -maybe_ack(_Q, true, true, AckTag) -> - AckTag; -maybe_ack(Q, _, _, AckTag) -> - ok = rabbit_disk_queue:ack(Q, [AckTag]), - noack. - -remove_noacks(MsgsWithAcks) -> - lists:foldl( - fun ({Msg, noack}, {AccAckTags, AccSize}) -> - {AccAckTags, size_of_message(Msg) + AccSize}; - ({Msg, AckTag}, {AccAckTags, AccSize}) -> - {[AckTag | AccAckTags], size_of_message(Msg) + AccSize} - end, {[], 0}, MsgsWithAcks). - -ack(MsgsWithAcks, State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss }) -> - {AckTags, ASize} = remove_noacks(MsgsWithAcks), - ok = case AckTags of - [] -> ok; - _ -> rabbit_disk_queue:ack(Q, AckTags) - end, - State1 = State #mqstate { memory_size = QSize - ASize, - memory_loss = Loss + ASize }, - {ok, State1}. - -tx_publish(Msg = #basic_message { is_persistent = IsPersistent }, - State = #mqstate { mode = Mode, memory_size = QSize, - is_durable = IsDurable, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:tx_publish(Msg), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}; -tx_publish(Msg, State = #mqstate { mode = mixed, memory_size = QSize, - memory_gain = Gain }) -> - %% this message will reappear in the tx_commit, so ignore for now - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -only_msg_ids(Pubs) -> - lists:map(fun (Msg) -> {Msg #basic_message.guid, false} end, Pubs). - -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = disk, queue = Q, length = Length, - memory_size = QSize, memory_loss = Loss, - msg_buf = MsgBuf }) -> - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = if ([] == Publishes) andalso ([] == RealAcks) -> ok; - true -> rabbit_disk_queue:tx_commit(Q, only_msg_ids(Publishes), - RealAcks) - end, - Len = erlang:length(Publishes), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len), - memory_size = QSize - ASize, - memory_loss = Loss + ASize }}; -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, length = Length, - memory_size = QSize, memory_loss = Loss }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl(fun (Msg = #basic_message { is_persistent = IsPersistent }, - {Acc, MsgBuf2}) -> - Acc1 = - case IsPersistent andalso IsDurable of - true -> [ {Msg #basic_message.guid, false} - | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, false}, MsgBuf2)} - end, {[], MsgBuf}, Publishes), - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = case ([] == PersistentPubs) andalso ([] == RealAcks) of - true -> ok; - false -> rabbit_disk_queue:tx_commit( - Q, lists:reverse(PersistentPubs), RealAcks) - end, - {ok, State #mqstate { msg_buf = MsgBuf1, memory_size = QSize - ASize, - length = Length + erlang:length(Publishes), - memory_loss = Loss + ASize }}. - -tx_cancel(Publishes, State = #mqstate { mode = disk, memory_size = QSize, - memory_loss = Loss }) -> - {MsgIds, CSize} = - lists:foldl( - fun (Msg = #basic_message { guid = MsgId }, {MsgIdsAcc, CSizeAcc}) -> - {[MsgId | MsgIdsAcc], CSizeAcc + size_of_message(Msg)} - end, {[], 0}, Publishes), - ok = rabbit_disk_queue:tx_cancel(MsgIds), - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}; -tx_cancel(Publishes, State = #mqstate { mode = mixed, is_durable = IsDurable, - memory_size = QSize, - memory_loss = Loss }) -> - {PersistentPubs, CSize} = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, {Acc, CSizeAcc}) -> - CSizeAcc1 = CSizeAcc + size_of_message(Msg), - {case IsPersistent of - true -> [MsgId | Acc]; - _ -> Acc - end, CSizeAcc1} - end, {[], 0}, Publishes), - ok = - if IsDurable -> - rabbit_disk_queue:tx_cancel(PersistentPubs); - true -> ok - end, - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}. - -%% [{Msg, AckTag}] -requeue(MessagesWithAckTags, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable, - length = Length, - msg_buf = MsgBuf }) -> - %% here, we may have messages with no ack tags, because of the - %% fact they are not persistent, but nevertheless we want to - %% requeue them. This means publishing them delivered. - Requeue - = lists:foldl( - fun ({#basic_message { is_persistent = IsPersistent }, AckTag}, RQ) - when IsDurable andalso IsPersistent -> - [{AckTag, true} | RQ]; - ({Msg, noack}, RQ) -> - ok = case RQ == [] of - true -> ok; - false -> rabbit_disk_queue:requeue( - Q, lists:reverse(RQ)) - end, - ok = rabbit_disk_queue:publish(Q, Msg, true), - [] - end, [], MessagesWithAckTags), - ok = rabbit_disk_queue:requeue(Q, lists:reverse(Requeue)), - Len = erlang:length(MessagesWithAckTags), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len) }}; -requeue(MessagesWithAckTags, State = #mqstate { mode = mixed, queue = Q, - msg_buf = MsgBuf, - is_durable = IsDurable, - length = Length }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, AckTag}, - {Acc, MsgBuf2}) -> - Acc1 = - case IsDurable andalso IsPersistent of - true -> [{AckTag, true} | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, true}, MsgBuf2)} - end, {[], MsgBuf}, MessagesWithAckTags), - ok = case PersistentPubs of - [] -> ok; - _ -> rabbit_disk_queue:requeue(Q, lists:reverse(PersistentPubs)) - end, - {ok, State #mqstate {msg_buf = MsgBuf1, - length = Length + erlang:length(MessagesWithAckTags)}}. - -purge(State = #mqstate { queue = Q, mode = disk, length = Count, - memory_loss = Loss, memory_size = QSize }) -> - Count = rabbit_disk_queue:purge(Q), - {Count, State #mqstate { length = 0, memory_size = 0, - memory_loss = Loss + QSize }}; -purge(State = #mqstate { queue = Q, mode = mixed, length = Length, - memory_loss = Loss, memory_size = QSize, - prefetcher = Prefetcher }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - rabbit_disk_queue:purge(Q), - {Length, - State #mqstate { msg_buf = queue:new(), length = 0, memory_size = 0, - memory_loss = Loss + QSize, prefetcher = undefined }}. - -delete_queue(State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss, prefetcher = Prefetcher - }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - ok = rabbit_disk_queue:delete_queue(Q), - {ok, State #mqstate { length = 0, memory_size = 0, msg_buf = queue:new(), - memory_loss = Loss + QSize, prefetcher = undefined }}. - -length(#mqstate { length = Length }) -> - Length. - -is_empty(#mqstate { length = Length }) -> - 0 == Length. - -estimate_queue_memory_and_reset_counters(State = - #mqstate { memory_size = Size, memory_gain = Gain, memory_loss = Loss }) -> - {State #mqstate { memory_gain = 0, memory_loss = 0 }, 4 * Size, Gain, Loss}. - -info(#mqstate { mode = Mode }) -> - Mode. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index b40294f6..575ecb0a 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -144,31 +144,11 @@ table_definitions() -> {disc_copies, [node()]}]}, {rabbit_queue, [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}, - {rabbit_disk_queue, - [{record_name, dq_msg_loc}, - {type, set}, - {local_content, true}, - {attributes, record_info(fields, dq_msg_loc)}, - {disc_copies, [node()]}]} - ]. - -replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - not lists:member({local_content, true}, Attrs) - ]. - -non_replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - lists:member({local_content, true}, Attrs) - ]. + {attributes, record_info(fields, amqqueue)}]}]. table_names() -> [Tab || {Tab, _} <- table_definitions()]. -replicated_table_names() -> - [Tab || {Tab, _} <- replicated_table_definitions()]. - dir() -> mnesia:system_info(directory). ensure_mnesia_dir() -> @@ -193,8 +173,7 @@ ensure_mnesia_not_running() -> check_schema_integrity() -> %%TODO: more thorough checks - case catch [mnesia:table_info(Tab, version) - || Tab <- table_names()] of + case catch [mnesia:table_info(Tab, version) || Tab <- table_names()] of {'EXIT', Reason} -> {error, Reason}; _ -> ok end. @@ -274,11 +253,9 @@ init_db(ClusterNodes) -> WasDiskNode = mnesia:system_info(use_dir), IsDiskNode = ClusterNodes == [] orelse lists:member(node(), ClusterNodes), - ExtraNodes = ClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ExtraNodes) of + case mnesia:change_config(extra_db_nodes, ClusterNodes -- [node()]) of {ok, []} -> - case WasDiskNode of - true -> + if WasDiskNode and IsDiskNode -> case check_schema_integrity() of ok -> ok; @@ -293,18 +270,22 @@ init_db(ClusterNodes) -> ok = move_db(), ok = create_schema() end; - false -> - ok = create_schema() + WasDiskNode -> + throw({error, {cannot_convert_disk_node_to_ram_node, + ClusterNodes}}); + IsDiskNode -> + ok = create_schema(); + true -> + throw({error, {unable_to_contact_cluster_nodes, + ClusterNodes}}) end; {ok, [_|_]} -> - TableCopyType = case IsDiskNode of - true -> disc; - false -> ram - end, - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_non_replicated_table_copies(disc), - ok = create_local_replicated_table_copies(TableCopyType); + ok = wait_for_tables(), + ok = create_local_table_copies( + case IsDiskNode of + true -> disc; + false -> ram + end); {error, Reason} -> %% one reason we may end up here is if we try to join %% nodes together that are currently running standalone or @@ -355,27 +336,16 @@ create_tables() -> table_definitions()), ok. -create_local_replicated_table_copies(Type) -> - create_local_table_copies(Type, replicated_table_definitions()). - -create_local_non_replicated_table_copies(Type) -> - create_local_table_copies(Type, non_replicated_table_definitions()). - -create_local_table_copies(Type, TableDefinitions) -> +create_local_table_copies(Type) -> + ok = if Type /= ram -> create_local_table_copy(schema, disc_copies); + true -> ok + end, lists:foreach( fun({Tab, TabDef}) -> HasDiscCopies = - case lists:keysearch(disc_copies, 1, TabDef) of - false -> false; - {value, {disc_copies, List1}} -> - lists:member(node(), List1) - end, + lists:keymember(disc_copies, 1, TabDef), HasDiscOnlyCopies = - case lists:keysearch(disc_only_copies, 1, TabDef) of - false -> false; - {value, {disc_only_copies, List2}} -> - lists:member(node(), List2) - end, + lists:keymember(disc_only_copies, 1, TabDef), StorageType = case Type of disc -> @@ -396,7 +366,10 @@ create_local_table_copies(Type, TableDefinitions) -> end, ok = create_local_table_copy(Tab, StorageType) end, - TableDefinitions), + table_definitions()), + ok = if Type == ram -> create_local_table_copy(schema, ram_copies); + true -> ok + end, ok. create_local_table_copy(Tab, Type) -> @@ -411,16 +384,10 @@ create_local_table_copy(Tab, Type) -> end, ok. -wait_for_replicated_tables() -> - wait_for_tables(replicated_table_names()). - -wait_for_tables() -> - wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> +wait_for_tables() -> case check_schema_integrity() of ok -> - case mnesia:wait_for_tables(TableNames, 30000) of + case mnesia:wait_for_tables(table_names(), 30000) of ok -> ok; {timeout, BadTabs} -> throw({error, {timeout_waiting_for_tables, BadTabs}}); diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl new file mode 100644 index 00000000..d0d60ddf --- /dev/null +++ b/src/rabbit_persister.erl @@ -0,0 +1,523 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_persister). + +-behaviour(gen_server). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([transaction/1, extend_transaction/2, dirty_work/1, + commit_transaction/1, rollback_transaction/1, + force_snapshot/0, serial/0]). + +-include("rabbit.hrl"). + +-define(SERVER, ?MODULE). + +-define(LOG_BUNDLE_DELAY, 5). +-define(COMPLETE_BUNDLE_DELAY, 2). + +-define(HIBERNATE_AFTER, 10000). + +-define(MAX_WRAP_ENTRIES, 500). + +-define(PERSISTER_LOG_FORMAT_VERSION, {2, 4}). + +-record(pstate, {log_handle, entry_count, deadline, + pending_logs, pending_replies, + snapshot}). + +%% two tables for efficient persistency +%% one maps a key to a message +%% the other maps a key to one or more queues. +%% The aim is to reduce the overload of storing a message multiple times +%% when it appears in several queues. +-record(psnapshot, {serial, transactions, messages, queues}). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(qmsg() :: {amqqueue(), pkey()}). +-type(work_item() :: + {publish, message(), qmsg()} | + {deliver, qmsg()} | + {ack, qmsg()}). + +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(transaction/1 :: ([work_item()]) -> 'ok'). +-spec(extend_transaction/2 :: (txn(), [work_item()]) -> 'ok'). +-spec(dirty_work/1 :: ([work_item()]) -> 'ok'). +-spec(commit_transaction/1 :: (txn()) -> 'ok'). +-spec(rollback_transaction/1 :: (txn()) -> 'ok'). +-spec(force_snapshot/0 :: () -> 'ok'). +-spec(serial/0 :: () -> non_neg_integer()). + +-endif. + +%%---------------------------------------------------------------------------- + +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + +transaction(MessageList) -> + ?LOGDEBUG("transaction ~p~n", [MessageList]), + TxnKey = rabbit_guid:guid(), + gen_server:call(?SERVER, {transaction, TxnKey, MessageList}, infinity). + +extend_transaction(TxnKey, MessageList) -> + ?LOGDEBUG("extend_transaction ~p ~p~n", [TxnKey, MessageList]), + gen_server:cast(?SERVER, {extend_transaction, TxnKey, MessageList}). + +dirty_work(MessageList) -> + ?LOGDEBUG("dirty_work ~p~n", [MessageList]), + gen_server:cast(?SERVER, {dirty_work, MessageList}). + +commit_transaction(TxnKey) -> + ?LOGDEBUG("commit_transaction ~p~n", [TxnKey]), + gen_server:call(?SERVER, {commit_transaction, TxnKey}, infinity). + +rollback_transaction(TxnKey) -> + ?LOGDEBUG("rollback_transaction ~p~n", [TxnKey]), + gen_server:cast(?SERVER, {rollback_transaction, TxnKey}). + +force_snapshot() -> + gen_server:call(?SERVER, force_snapshot, infinity). + +serial() -> + gen_server:call(?SERVER, serial, infinity). + +%%-------------------------------------------------------------------- + +init(_Args) -> + process_flag(trap_exit, true), + FileName = base_filename(), + ok = filelib:ensure_dir(FileName), + Snapshot = #psnapshot{serial = 0, + transactions = dict:new(), + messages = ets:new(messages, []), + queues = ets:new(queues, [])}, + LogHandle = + case disk_log:open([{name, rabbit_persister}, + {head, current_snapshot(Snapshot)}, + {file, FileName}]) of + {ok, LH} -> LH; + {repaired, LH, {recovered, Recovered}, {badbytes, Bad}} -> + WarningFun = if + Bad > 0 -> fun rabbit_log:warning/2; + true -> fun rabbit_log:info/2 + end, + WarningFun("Repaired persister log - ~p recovered, ~p bad~n", + [Recovered, Bad]), + LH + end, + {Res, LoadedSnapshot} = internal_load_snapshot(LogHandle, Snapshot), + NewSnapshot = LoadedSnapshot#psnapshot{ + serial = LoadedSnapshot#psnapshot.serial + 1}, + case Res of + ok -> + ok = take_snapshot(LogHandle, NewSnapshot); + {error, Reason} -> + rabbit_log:error("Failed to load persister log: ~p~n", [Reason]), + ok = take_snapshot_and_save_old(LogHandle, NewSnapshot) + end, + State = #pstate{log_handle = LogHandle, + entry_count = 0, + deadline = infinity, + pending_logs = [], + pending_replies = [], + snapshot = NewSnapshot}, + {ok, State}. + +handle_call({transaction, Key, MessageList}, From, State) -> + NewState = internal_extend(Key, MessageList, State), + do_noreply(internal_commit(From, Key, NewState)); +handle_call({commit_transaction, TxnKey}, From, State) -> + do_noreply(internal_commit(From, TxnKey, State)); +handle_call(force_snapshot, _From, State) -> + do_reply(ok, flush(true, State)); +handle_call(serial, _From, + State = #pstate{snapshot = #psnapshot{serial = Serial}}) -> + do_reply(Serial, State); +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast({rollback_transaction, TxnKey}, State) -> + do_noreply(internal_rollback(TxnKey, State)); +handle_cast({dirty_work, MessageList}, State) -> + do_noreply(internal_dirty_work(MessageList, State)); +handle_cast({extend_transaction, TxnKey, MessageList}, State) -> + do_noreply(internal_extend(TxnKey, MessageList, State)); +handle_cast(_Msg, State) -> + {noreply, State}. + +handle_info(timeout, State = #pstate{deadline = infinity}) -> + State1 = flush(true, State), + %% TODO: Once we drop support for R11B-5, we can change this to + %% {noreply, State1, hibernate}; + proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State1]); +handle_info(timeout, State) -> + do_noreply(flush(State)); +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, State = #pstate{log_handle = LogHandle}) -> + flush(State), + disk_log:close(LogHandle), + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, flush(State)}. + +%%-------------------------------------------------------------------- + +internal_extend(Key, MessageList, State) -> + log_work(fun (ML) -> {extend_transaction, Key, ML} end, + MessageList, State). + +internal_dirty_work(MessageList, State) -> + log_work(fun (ML) -> {dirty_work, ML} end, + MessageList, State). + +internal_commit(From, Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {commit_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + complete(From, Unit, State#pstate{snapshot = NewSnapshot}). + +internal_rollback(Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {rollback_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +complete(From, Item, State = #pstate{deadline = ExistingDeadline, + pending_logs = Logs, + pending_replies = Waiting}) -> + State#pstate{deadline = compute_deadline( + ?COMPLETE_BUNDLE_DELAY, ExistingDeadline), + pending_logs = [Item | Logs], + pending_replies = [From | Waiting]}. + +%% This is made to limit disk usage by writing messages only once onto +%% disk. We keep a table associating pkeys to messages, and provided +%% the list of messages to output is left to right, we can guarantee +%% that pkeys will be a backreference to a message in memory when a +%% "tied" is met. +log_work(CreateWorkUnit, MessageList, + State = #pstate{ + snapshot = Snapshot = #psnapshot{ + messages = Messages}}) -> + Unit = CreateWorkUnit( + rabbit_misc:map_in_order( + fun(M = {publish, Message, QK = {_QName, PKey}}) -> + case ets:lookup(Messages, PKey) of + [_] -> {tied, QK}; + [] -> ets:insert(Messages, {PKey, Message}), + M + end; + (M) -> M + end, + MessageList)), + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +log(State = #pstate{deadline = ExistingDeadline, pending_logs = Logs}, + Message) -> + State#pstate{deadline = compute_deadline(?LOG_BUNDLE_DELAY, + ExistingDeadline), + pending_logs = [Message | Logs]}. + +base_filename() -> + rabbit_mnesia:dir() ++ "/rabbit_persister.LOG". + +take_snapshot(LogHandle, OldFileName, Snapshot) -> + ok = disk_log:sync(LogHandle), + %% current_snapshot is the Head (ie. first thing logged) + ok = disk_log:reopen(LogHandle, OldFileName, current_snapshot(Snapshot)). + +take_snapshot(LogHandle, Snapshot) -> + OldFileName = lists:flatten(base_filename() ++ ".previous"), + file:delete(OldFileName), + rabbit_log:info("Rolling persister log to ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +take_snapshot_and_save_old(LogHandle, Snapshot) -> + {MegaSecs, Secs, MicroSecs} = erlang:now(), + Timestamp = MegaSecs * 1000000 + Secs * 1000 + MicroSecs, + OldFileName = lists:flatten(io_lib:format("~s.saved.~p", + [base_filename(), Timestamp])), + rabbit_log:info("Saving persister log in ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +maybe_take_snapshot(Force, State = #pstate{entry_count = EntryCount, + log_handle = LH, + snapshot = Snapshot}) + when Force orelse EntryCount >= ?MAX_WRAP_ENTRIES -> + ok = take_snapshot(LH, Snapshot), + State#pstate{entry_count = 0}; +maybe_take_snapshot(_Force, State) -> + State. + +later_ms(DeltaMilliSec) -> + {MegaSec, Sec, MicroSec} = now(), + %% Note: not normalised. Unimportant for this application. + {MegaSec, Sec, MicroSec + (DeltaMilliSec * 1000)}. + +%% Result = B - A, more or less +time_diff({B1, B2, B3}, {A1, A2, A3}) -> + (B1 - A1) * 1000000 + (B2 - A2) + (B3 - A3) / 1000000.0 . + +compute_deadline(TimerDelay, infinity) -> + later_ms(TimerDelay); +compute_deadline(_TimerDelay, ExistingDeadline) -> + ExistingDeadline. + +compute_timeout(infinity) -> + ?HIBERNATE_AFTER; +compute_timeout(Deadline) -> + DeltaMilliSec = time_diff(Deadline, now()) * 1000.0, + if + DeltaMilliSec =< 1 -> + 0; + true -> + round(DeltaMilliSec) + end. + +do_noreply(State = #pstate{deadline = Deadline}) -> + {noreply, State, compute_timeout(Deadline)}. + +do_reply(Reply, State = #pstate{deadline = Deadline}) -> + {reply, Reply, State, compute_timeout(Deadline)}. + +flush(State) -> flush(false, State). + +flush(ForceSnapshot, State = #pstate{pending_logs = PendingLogs, + pending_replies = Waiting, + log_handle = LogHandle}) -> + State1 = if PendingLogs /= [] -> + disk_log:alog(LogHandle, lists:reverse(PendingLogs)), + State#pstate{entry_count = State#pstate.entry_count + 1}; + true -> + State + end, + State2 = maybe_take_snapshot(ForceSnapshot, State1), + if Waiting /= [] -> + ok = disk_log:sync(LogHandle), + lists:foreach(fun (From) -> gen_server:reply(From, ok) end, + Waiting); + true -> + ok + end, + State2#pstate{deadline = infinity, + pending_logs = [], + pending_replies = []}. + +current_snapshot(_Snapshot = #psnapshot{serial = Serial, + transactions= Ts, + messages = Messages, + queues = Queues}) -> + %% Avoid infinite growth of the table by removing messages not + %% bound to a queue anymore + prune_table(Messages, ets:foldl( + fun ({{_QName, PKey}, _Delivered}, S) -> + sets:add_element(PKey, S) + end, sets:new(), Queues)), + InnerSnapshot = {{serial, Serial}, + {txns, Ts}, + {messages, ets:tab2list(Messages)}, + {queues, ets:tab2list(Queues)}}, + ?LOGDEBUG("Inner snapshot: ~p~n", [InnerSnapshot]), + {persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + term_to_binary(InnerSnapshot)}. + +prune_table(Tab, Keys) -> + true = ets:safe_fixtable(Tab, true), + ok = prune_table(Tab, Keys, ets:first(Tab)), + true = ets:safe_fixtable(Tab, false). + +prune_table(_Tab, _Keys, '$end_of_table') -> ok; +prune_table(Tab, Keys, Key) -> + case sets:is_element(Key, Keys) of + true -> ok; + false -> ets:delete(Tab, Key) + end, + prune_table(Tab, Keys, ets:next(Tab, Key)). + +internal_load_snapshot(LogHandle, + Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + {K, [Loaded_Snapshot | Items]} = disk_log:chunk(LogHandle, start), + case check_version(Loaded_Snapshot) of + {ok, StateBin} -> + {{serial, Serial}, {txns, Ts}, {messages, Ms}, {queues, Qs}} = + binary_to_term(StateBin), + true = ets:insert(Messages, Ms), + true = ets:insert(Queues, Qs), + Snapshot1 = replay(Items, LogHandle, K, + Snapshot#psnapshot{ + serial = Serial, + transactions = Ts}), + Snapshot2 = requeue_messages(Snapshot1), + %% uncompleted transactions are discarded - this is TRTTD + %% since we only get into this code on node restart, so + %% any uncompleted transactions will have been aborted. + {ok, Snapshot2#psnapshot{transactions = dict:new()}}; + {error, Reason} -> {{error, Reason}, Snapshot} + end. + +check_version({persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + StateBin}) -> + {ok, StateBin}; +check_version({persist_snapshot, {vsn, Vsn}, _StateBin}) -> + {error, {unsupported_persister_log_format, Vsn}}; +check_version(_Other) -> + {error, unrecognised_persister_log_format}. + +requeue_messages(Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + Work = ets:foldl(fun accumulate_requeues/2, dict:new(), Queues), + %% unstable parallel map, because order doesn't matter + L = lists:append( + rabbit_misc:upmap( + %% we do as much work as possible in spawned worker + %% processes, but we need to make sure the ets:inserts are + %% performed in self() + fun ({QName, Requeues}) -> + requeue(QName, Requeues, Messages) + end, dict:to_list(Work))), + NewMessages = [{K, M} || {{_Q, K}, M, _D} <- L], + NewQueues = [{QK, D} || {QK, _M, D} <- L], + ets:delete_all_objects(Messages), + ets:delete_all_objects(Queues), + true = ets:insert(Messages, NewMessages), + true = ets:insert(Queues, NewQueues), + %% contains the mutated messages and queues tables + Snapshot. + +accumulate_requeues({{QName, PKey}, Delivered}, Acc) -> + Requeue = {PKey, Delivered}, + dict:update(QName, + fun (Requeues) -> [Requeue | Requeues] end, + [Requeue], + Acc). + +requeue(QName, Requeues, Messages) -> + case rabbit_amqqueue:lookup(QName) of + {ok, #amqqueue{pid = QPid}} -> + RequeueMessages = + [{{QName, PKey}, Message, Delivered} || + {PKey, Delivered} <- Requeues, + {_, Message} <- ets:lookup(Messages, PKey)], + rabbit_amqqueue:redeliver( + QPid, + %% Messages published by the same process receive + %% persistence keys that are monotonically + %% increasing. Since message ordering is defined on a + %% per-channel basis, and channels are bound to specific + %% processes, sorting the list does provide the correct + %% ordering properties. + [{Message, Delivered} || {_, Message, Delivered} <- + lists:sort(RequeueMessages)]), + RequeueMessages; + {error, not_found} -> + [] + end. + +replay([], LogHandle, K, Snapshot) -> + case disk_log:chunk(LogHandle, K) of + {K1, Items} -> + replay(Items, LogHandle, K1, Snapshot); + {K1, Items, Badbytes} -> + rabbit_log:warning("~p bad bytes recovering persister log~n", + [Badbytes]), + replay(Items, LogHandle, K1, Snapshot); + eof -> Snapshot + end; +replay([Item | Items], LogHandle, K, Snapshot) -> + NewSnapshot = internal_integrate_messages(Item, Snapshot), + replay(Items, LogHandle, K, NewSnapshot). + +internal_integrate_messages(Items, Snapshot) -> + lists:foldl(fun (Item, Snap) -> internal_integrate1(Item, Snap) end, + Snapshot, Items). + +internal_integrate1({extend_transaction, Key, MessageList}, + Snapshot = #psnapshot {transactions = Transactions}) -> + NewTransactions = + dict:update(Key, + fun (MessageLists) -> [MessageList | MessageLists] end, + [MessageList], + Transactions), + Snapshot#psnapshot{transactions = NewTransactions}; +internal_integrate1({rollback_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions}) -> + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; +internal_integrate1({commit_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions, + messages = Messages, + queues = Queues}) -> + case dict:find(Key, Transactions) of + {ok, MessageLists} -> + ?LOGDEBUG("persist committing txn ~p~n", [Key]), + lists:foreach(fun (ML) -> perform_work(ML, Messages, Queues) end, + lists:reverse(MessageLists)), + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; + error -> + Snapshot + end; +internal_integrate1({dirty_work, MessageList}, + Snapshot = #psnapshot {messages = Messages, + queues = Queues}) -> + perform_work(MessageList, Messages, Queues), + Snapshot. + +perform_work(MessageList, Messages, Queues) -> + lists:foreach( + fun (Item) -> perform_work_item(Item, Messages, Queues) end, + MessageList). + +perform_work_item({publish, Message, QK = {_QName, PKey}}, Messages, Queues) -> + ets:insert(Messages, {PKey, Message}), + ets:insert(Queues, {QK, false}); + +perform_work_item({tied, QK}, _Messages, Queues) -> + ets:insert(Queues, {QK, false}); + +perform_work_item({deliver, QK}, _Messages, Queues) -> + %% from R12B-2 onward we could use ets:update_element/3 here + ets:delete(Queues, QK), + ets:insert(Queues, {QK, true}); + +perform_work_item({ack, QK}, _Messages, Queues) -> + ets:delete(Queues, QK). diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl deleted file mode 100644 index 5a6c8b39..00000000 --- a/src/rabbit_queue_mode_manager.erl +++ /dev/null @@ -1,496 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_mode_manager). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([register/5, report_memory/3, report_memory/5, info/0, - pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). - --define(TOTAL_TOKENS, 10000000). --define(ACTIVITY_THRESHOLD, 25). - --define(SERVER, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(register/5 :: (pid(), boolean(), atom(), atom(), list()) -> 'ok'). --spec(report_memory/3 :: (pid(), non_neg_integer(), bool()) -> 'ok'). --spec(report_memory/5 :: (pid(), non_neg_integer(), - (non_neg_integer() | 'undefined'), - (non_neg_integer() | 'undefined'), bool()) -> - 'ok'). --spec(pin_to_disk/1 :: (pid()) -> 'ok'). --spec(unpin_from_disk/1 :: (pid()) -> 'ok'). --spec(info/0 :: () -> [{atom(), any()}]). --spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). - --endif. - --record(state, { available_tokens, - mixed_queues, - callbacks, - tokens_per_byte, - lowrate, - hibernate, - disk_mode_pins, - unevictable, - alarmed - }). - -%% Token-credit based memory management - -%% Start off by working out the amount of memory available in the -%% system (RAM). Then, work out how many tokens each byte corresponds -%% to. This is the tokens_per_byte field. When a process registers, it -%% must provide an M-F-A triple to a function that needs one further -%% argument, which is the new mode. This will either be 'mixed' or -%% 'disk'. -%% -%% Processes then report their own memory usage, in bytes, and the -%% manager takes care of the rest. -%% -%% There are a finite number of tokens in the system. These are -%% allocated to processes as they are requested. We keep track of -%% processes which have hibernated, and processes that are doing only -%% a low rate of work. When a request for memory can't be satisfied, -%% we try and evict processes first from the hibernated group, and -%% then from the lowrate group. The hibernated group is a simple -%% queue, and so is implicitly sorted by the order in which processes -%% were added to the queue. This means that when removing from the -%% queue, we hibernate the sleepiest pid first. The lowrate group is a -%% priority queue, where the priority is the truncated log (base e) of -%% the amount of memory allocated. Thus when we remove from the queue, -%% we first remove the queue from the highest bucket. -%% -%% If the request still can't be satisfied after evicting to disk -%% everyone from those two groups (and note that we check first -%% whether or not freeing them would make available enough tokens to -%% satisfy the request rather than just sending all those queues to -%% disk and then going "whoops, didn't help after all"), then we send -%% the requesting process to disk. When a queue registers, it can -%% declare itself "unevictable". If a queue is unevictable then it -%% will not be sent to disk as a result of other processes requesting -%% more memory. However, if it itself is requesting more memory and -%% that request can't be satisfied then it is still sent to disk as -%% before. This feature is only used by the disk_queue, because if the -%% disk queue is not being used, and hibernates, and then memory -%% pressure gets tight, the disk_queue would typically be one of the -%% first processes to get sent to disk, which cripples -%% performance. Thus by setting it unevictable, it is only possible -%% for the disk_queue to be sent to disk when it is active and -%% attempting to increase its memory allocation. -%% -%% If a process has been sent to disk, it continues making -%% requests. As soon as a request can be satisfied (and this can -%% include sending other processes to disk in the way described -%% above), it will be told to come back into mixed mode. We do not -%% keep any information about queues in disk mode. -%% -%% Note that the lowrate and hibernate groups can get very out of -%% date. This is fine, and somewhat unavoidable given the absence of -%% useful APIs for queues. Thus we allow them to get out of date -%% (processes will be left in there when they change groups, -%% duplicates can appear, dead processes are not pruned etc etc etc), -%% and when we go through the groups, summing up their amount of -%% memory, we tidy up at that point. -%% -%% A process which is not evicted to disk, and is requesting a smaller -%% amount of RAM than its last request will always be satisfied. A -%% mixed-mode process that is busy but consuming an unchanging amount -%% of RAM will never be sent to disk. The disk_queue is also managed -%% in the same way. This means that a queue that has gone back to -%% being mixed after being in disk mode now has its messages counted -%% twice as they are counted both in the request made by the queue -%% (even though they may not yet be in RAM (though see the -%% prefetcher)) and also by the disk_queue. Thus the amount of -%% available RAM must be higher when going disk -> mixed than when -%% going mixed -> disk. This is fairly sensible as it reduces the risk -%% of any oscillations occurring. -%% -%% The queue process deliberately reports 4 times its estimated RAM -%% usage, and the disk_queue 2.5 times. In practise, this seems to -%% work well. Note that we are deliberately running out of tokes a -%% little early because of the fact that the mixed -> disk transition -%% can transiently eat a lot of memory and take some time (flushing a -%% few million messages to disk is never going to be instantaneous). - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -register(Pid, Unevictable, Module, Function, Args) -> - gen_server2:cast(?SERVER, {register, Pid, Unevictable, - Module, Function, Args}). - -pin_to_disk(Pid) -> - gen_server2:call(?SERVER, {pin_to_disk, Pid}). - -unpin_from_disk(Pid) -> - gen_server2:call(?SERVER, {unpin_from_disk, Pid}). - -report_memory(Pid, Memory, Hibernating) -> - report_memory(Pid, Memory, undefined, undefined, Hibernating). - -report_memory(Pid, Memory, Gain, Loss, Hibernating) -> - gen_server2:cast(?SERVER, - {report_memory, Pid, Memory, Gain, Loss, Hibernating}). - -info() -> - gen_server2:call(?SERVER, info). - -conserve_memory(_Pid, Conserve) -> - gen_server2:pcast(?SERVER, 9, {conserve_memory, Conserve}). - -init([]) -> - process_flag(trap_exit, true), - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - {MemTotal, MemUsed, _BigProc} = memsup:get_memory_data(), - MemAvail = MemTotal - MemUsed, - TPB = if MemAvail == 0 -> 0; - true -> ?TOTAL_TOKENS / MemAvail - end, - {ok, #state { available_tokens = ?TOTAL_TOKENS, - mixed_queues = dict:new(), - callbacks = dict:new(), - tokens_per_byte = TPB, - lowrate = priority_queue:new(), - hibernate = queue:new(), - disk_mode_pins = sets:new(), - unevictable = sets:new(), - alarmed = false - }}. - -handle_call({pin_to_disk, Pid}, _From, - State = #state { mixed_queues = Mixed, - callbacks = Callbacks, - available_tokens = Avail, - disk_mode_pins = Pins }) -> - {Res, State1} = - case sets:is_element(Pid, Pins) of - true -> {ok, State}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - ok = set_queue_mode(Callbacks, Pid, disk), - {ok, State #state { mixed_queues = - dict:erase(Pid, Mixed), - available_tokens = Avail + OAlloc, - disk_mode_pins = - sets:add_element(Pid, Pins) - }}; - disk -> - {ok, State #state { disk_mode_pins = - sets:add_element(Pid, Pins) }} - end - end, - {reply, Res, State1}; - -handle_call({unpin_from_disk, Pid}, _From, - State = #state { disk_mode_pins = Pins }) -> - {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; - -handle_call(info, _From, State) -> - State1 = #state { available_tokens = Avail, - mixed_queues = Mixed, - lowrate = Lazy, - hibernate = Sleepy, - disk_mode_pins = Pins, - unevictable = Unevictable } = - free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying - {reply, [{ available_tokens, Avail }, - { mixed_queues, dict:to_list(Mixed) }, - { lowrate_queues, priority_queue:to_list(Lazy) }, - { hibernated_queues, queue:to_list(Sleepy) }, - { queues_pinned_to_disk, sets:to_list(Pins) }, - { unevictable_queues, sets:to_list(Unevictable) }], State1}. - - -handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, - State = #state { mixed_queues = Mixed, - available_tokens = Avail, - callbacks = Callbacks, - disk_mode_pins = Pins, - tokens_per_byte = TPB, - alarmed = Alarmed }) -> - Req = rabbit_misc:ceil(TPB * Memory), - LowRate = case {BytesGained, BytesLost} of - {undefined, _} -> false; - {_, undefined} -> false; - {G, L} -> G < ?ACTIVITY_THRESHOLD andalso - L < ?ACTIVITY_THRESHOLD - end, - MixedActivity = if Hibernating -> hibernate; - LowRate -> lowrate; - true -> active - end, - {StateN = #state { lowrate = Lazy, hibernate = Sleepy }, ActivityNew} = - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - Avail1 = Avail + OAlloc, - State1 = - #state { available_tokens = Avail2, mixed_queues = Mixed1 } - = free_upto(Pid, Req, - State #state { available_tokens = Avail1 }), - case Req > Avail2 of - true -> %% nowt we can do, send to disk - ok = set_queue_mode(Callbacks, Pid, disk), - {State1 #state { mixed_queues = - dict:erase(Pid, Mixed1) }, disk}; - false -> %% keep mixed - {State1 #state - { mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail2 - Req }, - MixedActivity} - end; - disk -> - case sets:is_element(Pid, Pins) orelse Alarmed of - true -> - {State, disk}; - false -> - State1 = #state { available_tokens = Avail1, - mixed_queues = Mixed1 } = - free_upto(Pid, Req, State), - case Req > Avail1 orelse Hibernating orelse LowRate of - true -> - %% not enough space, or no compelling - %% reason, so stay as disk - {State1, disk}; - false -> %% can go to mixed mode - set_queue_mode(Callbacks, Pid, mixed), - {State1 #state { - mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail1 - Req }, - MixedActivity} - end - end - end, - StateN1 = - case ActivityNew of - active -> StateN; - disk -> StateN; - lowrate -> - StateN #state { lowrate = add_to_lowrate(Pid, Req, Lazy) }; - hibernate -> - StateN #state { hibernate = queue:in(Pid, Sleepy) } - end, - {noreply, StateN1}; - -handle_cast({register, Pid, IsUnevictable, Module, Function, Args}, - State = #state { callbacks = Callbacks, - unevictable = Unevictable }) -> - _MRef = erlang:monitor(process, Pid), - Unevictable1 = case IsUnevictable of - true -> sets:add_element(Pid, Unevictable); - false -> Unevictable - end, - {noreply, State #state { callbacks = dict:store - (Pid, {Module, Function, Args}, Callbacks), - unevictable = Unevictable1 - }}; - -handle_cast({conserve_memory, Conserve}, State) -> - {noreply, State #state { alarmed = Conserve }}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #state { available_tokens = Avail, - mixed_queues = Mixed }) -> - State1 = case find_queue(Pid, Mixed) of - disk -> - State; - {mixed, {Alloc, _Activity}} -> - State #state { available_tokens = Avail + Alloc, - mixed_queues = dict:erase(Pid, Mixed) } - end, - {noreply, State1}; -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -add_to_lowrate(Pid, Alloc, Lazy) -> - Bucket = if Alloc == 0 -> 0; %% can't take log(0) - true -> trunc(math:log(Alloc)) %% log base e - end, - priority_queue:in({Pid, Bucket, Alloc}, Bucket, Lazy). - -find_queue(Pid, Mixed) -> - case dict:find(Pid, Mixed) of - {ok, Value} -> {mixed, Value}; - error -> disk - end. - -set_queue_mode(Callbacks, Pid, Mode) -> - {Module, Function, Args} = dict:fetch(Pid, Callbacks), - erlang:apply(Module, Function, Args ++ [Mode]). - -tidy_and_sum_lazy(IgnorePids, Lazy, Mixed) -> - tidy_and_sum(lowrate, Mixed, - fun (Lazy1) -> - case priority_queue:out(Lazy1) of - {empty, Lazy2} -> - {empty, Lazy2}; - {{value, {Pid, _Bucket, _Alloc}}, Lazy2} -> - {{value, Pid}, Lazy2} - end - end, fun add_to_lowrate/3, IgnorePids, Lazy, - priority_queue:new(), 0). - -tidy_and_sum_sleepy(IgnorePids, Sleepy, Mixed) -> - tidy_and_sum(hibernate, Mixed, fun queue:out/1, - fun (Pid, _Alloc, Queue) -> queue:in(Pid, Queue) end, - IgnorePids, Sleepy, queue:new(), 0). - -tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, DupCheckSet, - CataInit, AnaInit, AllocAcc) -> - case Catamorphism(CataInit) of - {empty, _CataInit} -> {AnaInit, AllocAcc}; - {{value, Pid}, CataInit1} -> - {DupCheckSet1, AnaInit1, AllocAcc1} = - case sets:is_element(Pid, DupCheckSet) of - true -> - {DupCheckSet, AnaInit, AllocAcc}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {Alloc, AtomExpected}} -> - {sets:add_element(Pid, DupCheckSet), - Anamorphism(Pid, Alloc, AnaInit), - Alloc + AllocAcc}; - _ -> - {DupCheckSet, AnaInit, AllocAcc} - end - end, - tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, - DupCheckSet1, CataInit1, AnaInit1, AllocAcc1) - end. - -free_upto_lazy(IgnorePids, Callbacks, Lazy, Mixed, Req) -> - free_from( - Callbacks, - fun(_Mixed, Lazy1, LazyAcc) -> - case priority_queue:out(Lazy1) of - {empty, _Lazy2} -> - empty; - {{value, V = {Pid, Bucket, Alloc}}, Lazy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Lazy2, - priority_queue:in(V, Bucket, LazyAcc)}; - false -> {value, Lazy2, Pid, Alloc} - end - end - end, fun priority_queue:join/2, Mixed, Lazy, priority_queue:new(), Req). - -free_upto_sleepy(IgnorePids, Callbacks, Sleepy, Mixed, Req) -> - free_from(Callbacks, - fun(Mixed1, Sleepy1, SleepyAcc) -> - case queue:out(Sleepy1) of - {empty, _Sleepy2} -> - empty; - {{value, Pid}, Sleepy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Sleepy2, - queue:in(Pid, SleepyAcc)}; - false -> {Alloc, hibernate} = - dict:fetch(Pid, Mixed1), - {value, Sleepy2, Pid, Alloc} - end - end - end, fun queue:join/2, Mixed, Sleepy, queue:new(), Req). - -free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit, AnaInit, Req) -> - case Hylomorphism(Mixed, CataInit, AnaInit) of - empty -> - {AnaInit, Mixed, Req}; - {skip, CataInit1, AnaInit1} -> - free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit1, - AnaInit1, Req); - {value, CataInit1, Pid, Alloc} -> - Mixed1 = dict:erase(Pid, Mixed), - ok = set_queue_mode(Callbacks, Pid, disk), - case Req > Alloc of - true -> free_from(Callbacks, Hylomorphism, BaseCase, Mixed1, - CataInit1, AnaInit, Req - Alloc); - false -> {BaseCase(CataInit1, AnaInit), Mixed1, Req - Alloc} - end - end. - -free_upto(Pid, Req, State = #state { available_tokens = Avail, - mixed_queues = Mixed, - callbacks = Callbacks, - lowrate = Lazy, - hibernate = Sleepy, - unevictable = Unevictable }) - when Req > Avail -> - Unevictable1 = sets:add_element(Pid, Unevictable), - {Sleepy1, SleepySum} = tidy_and_sum_sleepy(Unevictable1, Sleepy, Mixed), - case Req > Avail + SleepySum of - true -> %% not enough in sleepy, have a look in lazy too - {Lazy1, LazySum} = tidy_and_sum_lazy(Unevictable1, Lazy, Mixed), - case Req > Avail + SleepySum + LazySum of - true -> %% can't free enough, just return tidied state - State #state { lowrate = Lazy1, hibernate = Sleepy1 }; - false -> %% need to free all of sleepy, and some of lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, - Sleepy1, Mixed, Req), - {Lazy2, Mixed2, ReqRem1} = - free_upto_lazy(Unevictable1, Callbacks, - Lazy1, Mixed1, ReqRem), - %% ReqRem1 will be <= 0 because it's - %% likely we'll have freed more than we - %% need, thus Req - ReqRem1 is total freed - State #state { available_tokens = Avail + (Req - ReqRem1), - mixed_queues = Mixed2, lowrate = Lazy2, - hibernate = Sleepy2 } - end; - false -> %% enough available in sleepy, don't touch lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, Sleepy1, Mixed, Req), - State #state { available_tokens = Avail + (Req - ReqRem), - mixed_queues = Mixed1, hibernate = Sleepy2 } - end; -free_upto(_Pid, _Req, State) -> - State. diff --git a/src/rabbit_queue_prefetcher.erl b/src/rabbit_queue_prefetcher.erl deleted file mode 100644 index c847848d..00000000 --- a/src/rabbit_queue_prefetcher.erl +++ /dev/null @@ -1,258 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_prefetcher). - --behaviour(gen_server2). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([publish/2, drain/1, drain_and_stop/1]). - --include("rabbit.hrl"). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(pstate, - { msg_buf, - buf_length, - target_count, - fetched_count, - queue, - queue_mref - }). - -%% The design of the prefetcher is based on the following: -%% -%% a) It must issue low-priority (-ve) requests to the disk queue for -%% the next message. -%% b) If the prefetcher is empty and the amqqueue_process -%% (mixed_queue) asks it for a message, it must exit immediately, -%% telling the mixed_queue that it is empty so that the mixed_queue -%% can then take the more efficient path and communicate with the -%% disk_queue directly -%% c) No message can accidentally be delivered twice, or lost -%% d) The prefetcher must only cause load when the disk_queue is -%% otherwise idle, and must not worsen performance in a loaded -%% situation. -%% -%% As such, it's a little tricky. It must never issue a call to the -%% disk_queue - if it did, then that could potentially block, thus -%% causing pain to the mixed_queue that needs fast answers as to -%% whether the prefetcher has prefetched content or not. It behaves as -%% follows: -%% -%% 1) disk_queue:prefetch(Q) -%% This is a low priority cast -%% -%% 2) The disk_queue may pick up the cast, at which point it'll read -%% the next message and invoke prefetcher:publish(Msg) - normal -%% priority cast. Note that in the mean time, the mixed_queue could -%% have come along, found the prefetcher empty, asked it to -%% exit. This means the effective "reply" from the disk_queue will -%% go no where. As a result, the disk_queue must perform no -%% modification to the status of the message *or the queue* - do -%% not mark the message delivered, and do not advance the queue. If -%% it did advance the queue and the msg was then lost, then the -%% queue would have lost a msg that the mixed_queue would not pick -%% up. -%% -%% 3) The prefetcher hopefully receives the call from -%% prefetcher:publish(Msg). It replies immediately, and then adds -%% to its internal queue. A cast is not sufficient here because the -%% mixed_queue could come along, drain the prefetcher, thus -%% catching the msg just sent by the disk_queue and then call -%% disk_queue:deliver(Q) which is normal priority call, which could -%% overtake a reply cast from the prefetcher to the disk queue, -%% which would result in the same message being delivered -%% twice. Thus when the disk_queue calls prefetcher:publish(Msg), -%% it is briefly blocked. However, a) the prefetcher replies -%% immediately, and b) the prefetcher should never have more than -%% one item in its mailbox anyway, so this should not cause a -%% problem to the disk_queue. -%% -%% 4) The disk_queue receives the reply, marks the msg at the head of -%% the queue Q as delivered, and advances the Q to the next msg. -%% -%% 5) If the prefetcher has not met its target then it goes back to -%% 1). Otherwise it just sits and waits for the mixed_queue to -%% drain it. -%% -%% Now at some point, the mixed_queue will come along and will call -%% prefetcher:drain() - normal priority call. The prefetcher then -%% replies with its internal queue and the length of that queue. If -%% the prefetch target was reached, the prefetcher stops normally at -%% this point. If it hasn't been reached, then the prefetcher -%% continues to hang around (it almost certainly has issued a -%% disk_queue:prefetch(Q) cast and is waiting for a reply from the -%% disk_queue). -%% -%% If the mixed_queue calls prefetcher:drain() and the prefetcher's -%% internal queue is empty then the prefetcher replies with 'empty', -%% and it exits. This informs the mixed_queue that it should from now -%% on talk directly with the disk_queue and not via the -%% prefetcher. This is more efficient and the mixed_queue will use -%% normal priority blocking calls to the disk_queue and thus get -%% better service that way. -%% -%% The prefetcher may at this point have issued a -%% disk_queue:prefetch(Q) cast which has not yet been picked up by the -%% disk_queue. This msg won't go away and the disk_queue will -%% eventually find it. However, when it does, it'll simply read the -%% next message from the queue (which could now be empty), possibly -%% populate the cache (no harm done) and try and call -%% prefetcher:publish(Msg) which will result in an error, which the -%% disk_queue catches, as the publish call is to a non-existant -%% process. However, the state of the queue and the state of the -%% message has not been altered so the mixed_queue will be able to -%% fetch this message as if it had never been prefetched. -%% -%% The only point at which the queue is advanced and the message -%% marked as delivered is when the prefetcher replies to the publish -%% call. At this point the message has been received by the prefetcher -%% and so we guarantee it will be passed to the mixed_queue when the -%% mixed_queue tries to drain the prefetcher. We must therefore ensure -%% that this msg can't also be delivered to the mixed_queue directly -%% by the disk_queue through the mixed_queue calling -%% disk_queue:deliver(Q) which is why the prefetcher:publish function -%% is a call and not a cast, thus blocking the disk_queue. -%% -%% Finally, the prefetcher is only created when the mixed_queue is -%% operating in mixed mode and it sees that the next N messages are -%% all on disk, and the queue process is about to hibernate. During -%% this phase, the mixed_queue can be asked to go back to disk_only -%% mode. When this happens, it calls prefetcher:drain_and_stop() which -%% behaves like two consecutive calls to drain() - i.e. replies with -%% all prefetched messages and causes the prefetcher to exit. -%% -%% Note there is a flaw here in that we end up marking messages which -%% have come through the prefetcher as delivered even if they don't -%% get delivered (e.g. prefetcher fetches them, then broker -%% dies). However, the alternative is that the mixed_queue must do a -%% call to the disk_queue when it effectively passes them out to the -%% rabbit_writer. This would hurt performance, and even at that stage, -%% we have no guarantee that the message will really go out of the -%% socket. What we do still have is that messages which have the -%% redelivered bit set false really are guaranteed to have not been -%% delivered already. In theory, it's possible that the disk_queue -%% calls prefetcher:publish, blocks waiting for the reply. The -%% prefetcher grabs the message, is drained, the message goes out of -%% the socket and is delivered. The broker then crashes before the -%% disk_queue processes the reply from the prefetcher, thus the fact -%% the message has been delivered is not recorded. However, this can -%% only affect a single message at a time. I.e. there is a tiny chance -%% that the first message delivered on queue recovery that has the -%% redelivery bit set false, has in fact been delivered before. - -start_link(Queue, Count) -> - gen_server2:start_link(?MODULE, [Queue, Count, self()], []). - -publish(Prefetcher, Obj = { #basic_message {}, _Size, _IsDelivered, - _AckTag, _Remaining }) -> - gen_server2:call(Prefetcher, {publish, Obj}, infinity); -publish(Prefetcher, empty) -> - gen_server2:call(Prefetcher, publish_empty, infinity). - -drain(Prefetcher) -> - gen_server2:call(Prefetcher, drain, infinity). - -drain_and_stop(Prefetcher) -> - gen_server2:call(Prefetcher, drain_and_stop, infinity). - -init([Q, Count, QPid]) -> - %% link isn't enough because the signal will not appear if the - %% queue exits normally. Thus have to use monitor. - MRef = erlang:monitor(process, QPid), - State = #pstate { msg_buf = queue:new(), - buf_length = 0, - target_count = Count, - fetched_count = 0, - queue = Q, - queue_mref = MRef - }, - ok = rabbit_disk_queue:prefetch(Q), - {ok, State, infinity, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({publish, { Msg = #basic_message {}, - _Size, IsDelivered, AckTag, _Remaining }}, - DiskQueue, State = - #pstate { fetched_count = Fetched, target_count = Target, - msg_buf = MsgBuf, buf_length = Length, queue = Q - }) -> - gen_server2:reply(DiskQueue, ok), - Timeout = if Fetched + 1 == Target -> hibernate; - true -> ok = rabbit_disk_queue:prefetch(Q), - infinity - end, - MsgBuf1 = queue:in({Msg, IsDelivered, AckTag}, MsgBuf), - {noreply, State #pstate { fetched_count = Fetched + 1, - buf_length = Length + 1, - msg_buf = MsgBuf1 }, Timeout}; -handle_call(publish_empty, _From, State) -> - %% Very odd. This could happen if the queue is deleted or purged - %% and the mixed queue fails to shut us down. - {reply, ok, State, hibernate}; -handle_call(drain, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain, _From, State = #pstate { fetched_count = Count, - target_count = Count, - msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length, finished}, State}; -handle_call(drain, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {reply, {MsgBuf, Length, continuing}, - State #pstate { msg_buf = queue:new(), buf_length = 0 }, infinity}; -handle_call(drain_and_stop, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain_and_stop, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length}, State}. - -handle_cast(Msg, State) -> - exit({unexpected_message_cast_to_prefetcher, Msg, State}). - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #pstate { queue_mref = MRef }) -> - %% this is the amqqueue_process going down, so we should go down - %% too - {stop, normal, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index f6d42e7c..e5100ccd 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -31,9 +31,7 @@ -module(rabbit_tests). --compile(export_all). - --export([all_tests/0, test_parsing/0, test_disk_queue/0]). +-export([all_tests/0, test_parsing/0]). %% Exported so the hook mechanism can call back -export([handle_hook/3, bad_handle_hook/3, extra_arg_hook/5]). @@ -50,7 +48,6 @@ test_content_prop_roundtrip(Datum, Binary) -> Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion all_tests() -> - passed = test_disk_queue(), passed = test_priority_queue(), passed = test_parsing(), passed = test_topic_matching(), @@ -78,8 +75,7 @@ test_priority_queue() -> %% 1-element priority Q Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), + {true, false, 1, [{1, foo}], [foo]} = test_priority_queue(Q1), %% 2-element same-priority Q Q2 = priority_queue:in(bar, 1, Q1), @@ -95,42 +91,6 @@ test_priority_queue() -> Q4 = priority_queue:in(foo, -1, priority_queue:new()), {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - passed. priority_queue_in_all(Q, L) -> @@ -141,6 +101,7 @@ priority_queue_out_all(Q) -> {empty, _} -> []; {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] end. + test_priority_queue(Q) -> {priority_queue:is_queue(Q), priority_queue:is_empty(Q), @@ -447,17 +408,19 @@ test_cluster_management() -> end, ClusteringSequence), - %% convert a disk node into a ram node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(start_app, []), ok = control_action(stop_app, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), - %% join a non-existing cluster as a ram node + %% attempt to join a non-existing cluster as a ram node ok = control_action(reset, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {unable_to_contact_cluster_nodes, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), SecondaryNode = rabbit_misc:localnode(hare), case net_adm:ping(SecondaryNode) of @@ -473,12 +436,11 @@ test_cluster_management2(SecondaryNode) -> NodeS = atom_to_list(node()), SecondaryNodeS = atom_to_list(SecondaryNode), - %% make a disk node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), + {error, {unable_to_join_cluster, _, _}} = + control_action(cluster, [SecondaryNodeS]), %% join cluster as a ram node ok = control_action(reset, []), @@ -491,21 +453,21 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% join non-existing cluster as a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to join non-existing cluster as a ram node + {error, _} = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), + %% turn ram node into disk node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS, NodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% convert a disk node into a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to convert a disk node into a ram node + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn a disk node into a ram node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), @@ -780,503 +742,3 @@ bad_handle_hook(_, _, _) -> bad:bad(). extra_arg_hook(Hookname, Handler, Args, Extra1, Extra2) -> handle_hook(Hookname, Handler, {Args, Extra1, Extra2}). - -test_disk_queue() -> - rdq_stop(), - rdq_virgin(), - passed = rdq_stress_gc(5000), - passed = rdq_test_startup_with_queue_gaps(), - passed = rdq_test_redeliver(), - passed = rdq_test_purge(), - passed = rdq_test_mixed_queue_modes(), - passed = rdq_test_mode_conversion_mid_txn(), - passed = rdq_test_disk_queue_modes(), - rdq_virgin(), - passed. - -benchmark_disk_queue() -> - rdq_stop(), - % unicode chars are supported properly from r13 onwards - io:format("Msg Count\t| Msg Size\t| Queue Count\t| Startup mu s\t| Publish mu s\t| Pub mu s/msg\t| Pub mu s/byte\t| Deliver mu s\t| Del mu s/msg\t| Del mu s/byte~n", []), - [begin rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSize), - timer:sleep(1000) end || % 1000 milliseconds - MsgSize <- [512, 8192, 32768, 131072], - Qs <- [[1], lists:seq(1,10)], %, lists:seq(1,100), lists:seq(1,1000)], - MsgCount <- [1024, 4096, 16384] - ], - rdq_virgin(), - ok = control_action(stop_app, []), - ok = control_action(start_app, []), - passed. - -rdq_message(MsgId, MsgBody, IsPersistent) -> - rabbit_basic:message(x, <<>>, [], MsgBody, MsgId, IsPersistent). - -rdq_match_message( - #basic_message { guid = MsgId, content = - #content { payload_fragments_rev = [MsgBody] }}, - MsgId, MsgBody, Size) when size(MsgBody) =:= Size -> - ok. - -rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSizeBytes) -> - Startup = rdq_virgin(), - rdq_start(), - QCount = length(Qs), - Msg = <<0:(8*MsgSizeBytes)>>, - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - {Publish, ok} = - timer:tc(?MODULE, rdq_time_commands, - [[fun() -> [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) - || N <- List, _ <- Qs] end, - fun() -> [ok = rabbit_disk_queue:tx_commit(Q, CommitList, []) - || Q <- Qs] end - ]]), - {Deliver, ok} = - timer:tc( - ?MODULE, rdq_time_commands, - [[fun() -> [begin SeqIds = - [begin - Remaining = MsgCount - N, - {Message, _TSize, false, SeqId, - Remaining} = rabbit_disk_queue:deliver(Q), - ok = rdq_match_message(Message, N, Msg, MsgSizeBytes), - SeqId - end || N <- List], - ok = rabbit_disk_queue:tx_commit(Q, [], SeqIds) - end || Q <- Qs] - end]]), - io:format(" ~15.10B| ~14.10B| ~14.10B| ~14.1f| ~14.1f| ~14.6f| ~14.10f| ~14.1f| ~14.6f| ~14.10f~n", - [MsgCount, MsgSizeBytes, QCount, float(Startup), - float(Publish), (Publish / (MsgCount * QCount)), - (Publish / (MsgCount * QCount * MsgSizeBytes)), - float(Deliver), (Deliver / (MsgCount * QCount)), - (Deliver / (MsgCount * QCount * MsgSizeBytes))]), - rdq_stop(). - -% we know each file is going to be 1024*1024*10 bytes in size (10MB), -% so make sure we have several files, and then keep punching holes in -% a reasonably sensible way. -rdq_stress_gc(MsgCount) -> - rdq_virgin(), - rdq_start(), - MsgSizeBytes = 256*1024, - Msg = <<0:(8*MsgSizeBytes)>>, % 256KB - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- List], - rabbit_disk_queue:tx_commit(q, CommitList, []), - StartChunk = round(MsgCount / 20), % 5% - AckList = - lists:foldl( - fun (E, Acc) -> - case lists:member(E, Acc) of - true -> Acc; - false -> [E|Acc] - end - end, [], lists:flatten( - lists:reverse( - [ lists:seq(N, MsgCount, N) - || N <- lists:seq(1, round(MsgCount / 2), 1) - ]))), - {Start, End} = lists:split(StartChunk, AckList), - AckList2 = End ++ Start, - MsgIdToSeqDict = - lists:foldl( - fun (MsgId, Acc) -> - Remaining = MsgCount - MsgId, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, MsgId, Msg, MsgSizeBytes), - dict:store(MsgId, SeqId, Acc) - end, dict:new(), List), - %% we really do want to ack each of this individually - [begin {ok, SeqId} = dict:find(MsgId, MsgIdToSeqDict), - rabbit_disk_queue:ack(q, [SeqId]) - end || MsgId <- AckList2], - rabbit_disk_queue:tx_commit(q, [], []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_startup_with_queue_gaps() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, true)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% ack every other message we have delivered (starting at the _first_) - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:ack(q, [SeqId2]), - false; - (_SeqId2, false) -> - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Acked every other message delivered done~n", []), - rdq_stop(), - rdq_start(), - io:format("Startup (with shuffle) done~n", []), - %% should have shuffled up. So we should now get - %% lists:seq(2,500,2) already delivered - Seqs2 = [begin - Remaining = round(Total - ((Half + N)/2)), - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(2,Half,2)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - io:format("Reread non-acked messages done~n", []), - %% and now fetch the rest - Seqs3 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1 + Half,Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - io:format("Read second half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_redeliver() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% now requeue every other message (starting at the _first_) - %% and ack the other ones - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:requeue(q, [{SeqId2, true}]), - false; - (SeqId2, false) -> - rabbit_disk_queue:ack(q, [SeqId2]), - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Redeliver and acking done~n", []), - %% we should now get the 2nd half in order, followed by - %% every-other-from-the-first-half - Seqs2 = [begin - Remaining = round(Total - N + (Half/2)), - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1+Half, Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - Seqs3 = [begin - Remaining = round((Half - N) / 2) - 1, - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1, Half, 2)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_purge() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - rabbit_disk_queue:purge(q), - io:format("Purge done~n", []), - rabbit_disk_queue:tx_commit(q, [], Seqs), - io:format("Ack first half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_new_mixed_queue(Q, Durable, Disk) -> - {ok, MS} = rabbit_mixed_queue:init(Q, Durable), - {MS1, _, _, _} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - case Disk of - true -> {ok, MS2} = rabbit_mixed_queue:to_disk_only_mode([], MS1), - MS2; - false -> MS1 - end. - -rdq_test_mixed_queue_modes() -> - rdq_virgin(), - rdq_start(), - Payload = <<0:(8*256)>>, - MS = rdq_new_mixed_queue(q, true, false), - MS2 = lists:foldl( - fun (_N, MS1) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS, lists:seq(1,10)), - MS4 = lists:foldl( - fun (_N, MS3) -> - Msg = (rabbit_basic:message(x, <<>>, [], Payload)) - #basic_message { is_persistent = true }, - {ok, MS3a} = rabbit_mixed_queue:publish(Msg, MS3), - MS3a - end, MS2, lists:seq(1,10)), - MS6 = lists:foldl( - fun (_N, MS5) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS5a} = rabbit_mixed_queue:publish(Msg, MS5), - MS5a - end, MS4, lists:seq(1,10)), - 30 = rabbit_mixed_queue:length(MS6), - io:format("Published a mixture of messages; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS6)]), - {ok, MS7} = rabbit_mixed_queue:to_disk_only_mode([], MS6), - 30 = rabbit_mixed_queue:length(MS7), - io:format("Converted to disk only mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS7)]), - {ok, MS8} = rabbit_mixed_queue:to_mixed_mode([], MS7), - 30 = rabbit_mixed_queue:length(MS8), - io:format("Converted to mixed mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS8)]), - MS10 = - lists:foldl( - fun (N, MS9) -> - Rem = 30 - N, - {{#basic_message { is_persistent = false }, - false, _AckTag, Rem}, - MS9a} = rabbit_mixed_queue:deliver(MS9), - MS9a - end, MS8, lists:seq(1,10)), - 20 = rabbit_mixed_queue:length(MS10), - io:format("Delivered initial non persistent messages~n"), - {ok, MS11} = rabbit_mixed_queue:to_disk_only_mode([], MS10), - 20 = rabbit_mixed_queue:length(MS11), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS12 = rdq_new_mixed_queue(q, true, false), - 10 = rabbit_mixed_queue:length(MS12), - io:format("Recovered queue~n"), - {MS14, AckTags} = - lists:foldl( - fun (N, {MS13, AcksAcc}) -> - Rem = 10 - N, - {{Msg = #basic_message { is_persistent = true }, - false, AckTag, Rem}, - MS13a} = rabbit_mixed_queue:deliver(MS13), - {MS13a, [{Msg, AckTag} | AcksAcc]} - end, {MS12, []}, lists:seq(1,10)), - 0 = rabbit_mixed_queue:length(MS14), - {ok, MS15} = rabbit_mixed_queue:ack(AckTags, MS14), - io:format("Delivered and acked all messages~n"), - {ok, MS16} = rabbit_mixed_queue:to_disk_only_mode([], MS15), - 0 = rabbit_mixed_queue:length(MS16), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS17 = rdq_new_mixed_queue(q, true, false), - 0 = rabbit_mixed_queue:length(MS17), - {MS17,0,0,0} = rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS17), - io:format("Recovered queue~n"), - rdq_stop(), - passed. - -rdq_test_mode_conversion_mid_txn() -> - Payload = <<0:(8*256)>>, - MsgIdsA = lists:seq(0,9), - MsgsA = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsA ], - MsgIdsB = lists:seq(10,20), - MsgsB = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsB ], - - rdq_virgin(), - rdq_start(), - MS0 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS0, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, commit), - - rdq_stop_virgin_start(), - MS1 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS1, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, cancel), - - - rdq_stop_virgin_start(), - MS2 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS2, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, commit), - - rdq_stop_virgin_start(), - MS3 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS3, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, cancel), - - rdq_stop(), - passed. - -rdq_tx_publish_mixed_alter_commit_get(MS0, MsgsA, MsgsB, ChangeFun, CommitOrCancel) -> - 0 = rabbit_mixed_queue:length(MS0), - MS2 = lists:foldl( - fun (Msg, MS1) -> - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS0, MsgsA), - Len0 = length(MsgsA), - Len0 = rabbit_mixed_queue:length(MS2), - MS4 = lists:foldl( - fun (Msg, MS3) -> - {ok, MS3a} = rabbit_mixed_queue:tx_publish(Msg, MS3), - MS3a - end, MS2, MsgsB), - Len0 = rabbit_mixed_queue:length(MS4), - {ok, MS5} = ChangeFun(MsgsB, MS4), - Len0 = rabbit_mixed_queue:length(MS5), - {ok, MS9} = - case CommitOrCancel of - commit -> - {ok, MS6} = rabbit_mixed_queue:tx_commit(MsgsB, [], MS5), - Len1 = Len0 + length(MsgsB), - Len1 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len1 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA ++ MsgsB), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8); - cancel -> - {ok, MS6} = rabbit_mixed_queue:tx_cancel(MsgsB, MS5), - Len0 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len0 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8) - end, - 0 = rabbit_mixed_queue:length(MS9), - Msg = rdq_message(0, <<0:256>>, false), - {ok, AckTag, MS10} = rabbit_mixed_queue:publish_delivered(Msg, MS9), - {ok,MS11} = rabbit_mixed_queue:ack([{Msg, AckTag}], MS10), - 0 = rabbit_mixed_queue:length(MS11), - passed. - -rdq_test_disk_queue_modes() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half1 = lists:seq(1,round(Total/2)), - Half2 = lists:seq(1 + round(Total/2), Total), - CommitHalf1 = lists:zip(Half1, lists:duplicate(round(Total/2), false)), - CommitHalf2 = lists:zip(Half2, lists:duplicate - (Total - round(Total/2), false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half1], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf1, []), - io:format("Publish done~n", []), - ok = rabbit_disk_queue:to_disk_only_mode(), - io:format("To Disk Only done~n", []), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half2], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf2, []), - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half1], - io:format("Deliver first half done~n", []), - ok = rabbit_disk_queue:to_ram_disk_mode(), - io:format("To RAM Disk done~n", []), - Seqs2 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half2], - io:format("Deliver second half done~n", []), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs), - ok = rabbit_disk_queue:to_disk_only_mode(), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs2), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_time_commands(Funcs) -> - lists:foreach(fun (F) -> F() end, Funcs). - -rdq_virgin() -> - {Micros, {ok, _}} = - timer:tc(rabbit_disk_queue, start_link, []), - ok = rabbit_disk_queue:stop_and_obliterate(), - timer:sleep(1000), - Micros. - -rdq_start() -> - {ok, _} = rabbit_disk_queue:start_link(), - ok = rabbit_disk_queue:to_ram_disk_mode(), - ok. - -rdq_stop() -> - rabbit_disk_queue:stop(), - timer:sleep(1000). - -rdq_stop_virgin_start() -> - rdq_stop(), - rdq_virgin(), - rdq_start(). -- cgit v1.2.1 From 114ee935be38c5799331a5db9ab6d3eb71fb3440 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 17 Aug 2009 17:43:41 +0100 Subject: reversed everything but the changes to the guid generator. To QA this, find the diff between this and the default rev a53ac6a45325 --- Makefile | 7 +- include/rabbit.hrl | 8 +- scripts/rabbitmq-server | 3 +- scripts/rabbitmq-server.bat | 3 +- scripts/rabbitmq-service.bat | 3 +- src/priority_queue.erl | 42 +- src/rabbit.erl | 16 +- src/rabbit_alarm.erl | 52 +- src/rabbit_amqqueue.erl | 88 +- src/rabbit_amqqueue_process.erl | 568 +++++------ src/rabbit_basic.erl | 17 +- src/rabbit_channel.erl | 7 +- src/rabbit_control.erl | 22 +- src/rabbit_disk_queue.erl | 1973 ------------------------------------- src/rabbit_memsup.erl | 126 --- src/rabbit_memsup_darwin.erl | 102 -- src/rabbit_memsup_linux.erl | 99 +- src/rabbit_misc.erl | 40 +- src/rabbit_mixed_queue.erl | 596 ----------- src/rabbit_mnesia.erl | 93 +- src/rabbit_persister.erl | 523 ++++++++++ src/rabbit_queue_mode_manager.erl | 496 ---------- src/rabbit_queue_prefetcher.erl | 258 ----- src/rabbit_tests.erl | 582 +---------- 24 files changed, 988 insertions(+), 4736 deletions(-) delete mode 100644 src/rabbit_disk_queue.erl delete mode 100644 src/rabbit_memsup.erl delete mode 100644 src/rabbit_memsup_darwin.erl delete mode 100644 src/rabbit_mixed_queue.erl create mode 100644 src/rabbit_persister.erl delete mode 100644 src/rabbit_queue_mode_manager.erl delete mode 100644 src/rabbit_queue_prefetcher.erl diff --git a/Makefile b/Makefile index 05464ca1..c3b0c598 100644 --- a/Makefile +++ b/Makefile @@ -20,10 +20,10 @@ PYTHON=python ifndef USE_SPECS # our type specs rely on features / bug fixes in dialyzer that are -# only available in R13B upwards (R13B is eshell 5.7.1) +# only available in R12B-3 upwards # # NB: the test assumes that version number will only contain single digits -USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.0" ]; then echo "true"; else echo "false"; fi) +USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.6.2" ]; then echo "true"; else echo "false"; fi) endif #other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests @@ -101,8 +101,7 @@ run-tests: all start-background-node: $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server ; sleep 1 + ./scripts/rabbitmq-server -detached; sleep 1 start-rabbit-on-node: all echo "rabbit:start()." | $(ERL_CALL) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 0ba31cb5..784c21b3 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -62,10 +62,7 @@ -record(listener, {node, protocol, host, port}). --record(basic_message, {exchange_name, routing_key, content, - guid, is_persistent}). - --record(dq_msg_loc, {queue_and_seq_id, is_delivered, msg_id}). +-record(basic_message, {exchange_name, routing_key, content, persistent_key}). -record(delivery, {mandatory, immediate, txn, sender, message}). @@ -137,8 +134,7 @@ #basic_message{exchange_name :: exchange_name(), routing_key :: routing_key(), content :: content(), - guid :: guid(), - is_persistent :: bool()}). + persistent_key :: maybe(pkey())}). -type(message() :: basic_message()). -type(delivery() :: #delivery{mandatory :: bool(), diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index f802ec4c..547220b4 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -105,9 +105,8 @@ exec erl \ -os_mon start_memsup false \ -os_mon start_os_sup false \ -os_mon memsup_system_only true \ - -os_mon system_memory_high_watermark 0.8 \ + -os_mon system_memory_high_watermark 0.95 \ -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - -mnesia dump_log_write_threshold 10000 \ ${RABBITMQ_CLUSTER_CONFIG_OPTION} \ ${RABBITMQ_SERVER_START_ARGS} \ "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 3b6e4938..b4868841 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -134,9 +134,8 @@ if exist "%RABBITMQ_EBIN_ROOT%\rabbit.boot" ( -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat index 82aa4d5c..29be1742 100755 --- a/scripts/rabbitmq-service.bat +++ b/scripts/rabbitmq-service.bat @@ -175,9 +175,8 @@ set ERLANG_SERVICE_ARGUMENTS= ^ -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 0c777471..732757c4 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -55,8 +55,7 @@ -module(priority_queue). --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). +-export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, out/1]). %%---------------------------------------------------------------------------- @@ -73,8 +72,7 @@ -spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). -spec(in/2 :: (any(), pqueue()) -> pqueue()). -spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {(empty | {value, any()}), pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). +-spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). -endif. @@ -149,42 +147,6 @@ out({pqueue, [{P, Q} | Queues]}) -> end, {R, NewQ}. -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - r2f([]) -> {queue, [], []}; r2f([_] = R) -> {queue, [], R}; r2f([X,Y]) -> {queue, [X], [Y]}; diff --git a/src/rabbit.erl b/src/rabbit.erl index 88c60eb9..b0d62b5a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -139,8 +139,6 @@ start(normal, []) -> {ok, MemoryAlarms} = application:get_env(memory_alarms), ok = rabbit_alarm:start(MemoryAlarms), - - ok = start_child(rabbit_queue_mode_manager), ok = rabbit_binary_generator: check_empty_content_body_frame_size(), @@ -148,19 +146,15 @@ start(normal, []) -> ok = start_child(rabbit_router), ok = start_child(rabbit_node_monitor) end}, - {"disk queue", - fun () -> - ok = start_child(rabbit_disk_queue) - end}, {"recovery", fun () -> ok = maybe_insert_default_data(), ok = rabbit_exchange:recover(), - {ok, DurableQueues} = rabbit_amqqueue:recover(), - DurableQueueNames = - sets:from_list([ Q #amqqueue.name || Q <- DurableQueues ]), - ok = rabbit_disk_queue:delete_non_durable_queues( - DurableQueueNames) + ok = rabbit_amqqueue:recover() + end}, + {"persister", + fun () -> + ok = start_child(rabbit_persister) end}, {"guid generator", fun () -> diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 309c9a0e..21999f16 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -41,7 +41,7 @@ -define(MEMSUP_CHECK_INTERVAL, 1000). %% OSes on which we know memory alarms to be trustworthy --define(SUPPORTED_OS, [{unix, linux}, {unix, darwin}]). +-define(SUPPORTED_OS, [{unix, linux}]). -record(alarms, {alertees, system_memory_high_watermark = false}). @@ -136,35 +136,33 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- start_memsup() -> - {Mod, Args} = - case os:type() of - %% memsup doesn't take account of buffers or cache when - %% considering "free" memory - therefore on Linux we can - %% get memory alarms very easily without any pressure - %% existing on memory at all. Therefore we need to use - %% our own simple memory monitor. - %% - {unix, linux} -> {rabbit_memsup, [rabbit_memsup_linux]}; - {unix, darwin} -> {rabbit_memsup, [rabbit_memsup_darwin]}; - - %% Start memsup programmatically rather than via the - %% rabbitmq-server script. This is not quite the right - %% thing to do as os_mon checks to see if memsup is - %% available before starting it, but as memsup is - %% available everywhere (even on VXWorks) it should be - %% ok. - %% - %% One benefit of the programmatic startup is that we - %% can add our alarm_handler before memsup is running, - %% thus ensuring that we notice memory alarms that go - %% off on startup. - %% - _ -> {memsup, []} - end, + Mod = case os:type() of + %% memsup doesn't take account of buffers or cache when + %% considering "free" memory - therefore on Linux we can + %% get memory alarms very easily without any pressure + %% existing on memory at all. Therefore we need to use + %% our own simple memory monitor. + %% + {unix, linux} -> rabbit_memsup_linux; + + %% Start memsup programmatically rather than via the + %% rabbitmq-server script. This is not quite the right + %% thing to do as os_mon checks to see if memsup is + %% available before starting it, but as memsup is + %% available everywhere (even on VXWorks) it should be + %% ok. + %% + %% One benefit of the programmatic startup is that we + %% can add our alarm_handler before memsup is running, + %% thus ensuring that we notice memory alarms that go + %% off on startup. + %% + _ -> memsup + end, %% This is based on os_mon:childspec(memsup, true) {ok, _} = supervisor:start_child( os_mon_sup, - {memsup, {Mod, start_link, Args}, + {memsup, {Mod, start_link, []}, permanent, 2000, worker, [Mod]}), ok. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 62ea465d..4903c2c5 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,6 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/3, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -63,7 +62,7 @@ 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). -spec(start/0 :: () -> 'ok'). --spec(recover/0 :: () -> {'ok', [amqqueue()]}). +-spec(recover/0 :: () -> 'ok'). -spec(declare/4 :: (queue_name(), bool(), bool(), amqp_table()) -> amqqueue()). -spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). @@ -102,13 +101,10 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). --spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). --spec(report_memory/1 :: (pid()) -> 'ok'). -endif. @@ -123,42 +119,37 @@ start() -> ok. recover() -> - {ok, DurableQueues} = recover_durable_queues(), - {ok, DurableQueues}. + ok = recover_durable_queues(), + ok. recover_durable_queues() -> Node = node(), - DurableQueues = - lists:foldl( - fun (RecoveredQ, Acc) -> - Q = start_queue_process(RecoveredQ), - %% We need to catch the case where a client connected to - %% another node has deleted the queue (and possibly - %% re-created it). - case rabbit_misc:execute_mnesia_transaction( - fun () -> - Match = - mnesia:match_object( - rabbit_durable_queue, RecoveredQ, read), - case Match of - [_] -> ok = store_queue(Q), - true; - [] -> false - end - end) of - true -> [Q|Acc]; - false -> exit(Q#amqqueue.pid, shutdown), - Acc - end - end, [], - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end)), - {ok, DurableQueues}. + lists:foreach( + fun (RecoveredQ) -> + Q = start_queue_process(RecoveredQ), + %% We need to catch the case where a client connected to + %% another node has deleted the queue (and possibly + %% re-created it). + case rabbit_misc:execute_mnesia_transaction( + fun () -> case mnesia:match_object( + rabbit_durable_queue, RecoveredQ, read) of + [_] -> ok = store_queue(Q), + true; + [] -> false + end + end) of + true -> ok; + false -> exit(Q#amqqueue.pid, shutdown) + end + end, + %% TODO: use dirty ops instead + rabbit_misc:execute_mnesia_transaction( + fun () -> + qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} + <- mnesia:table(rabbit_durable_queue), + node(Pid) == Node])) + end)), + ok. declare(QueueName, Durable, AutoDelete, Args) -> Q = start_queue_process(#amqqueue{name = QueueName, @@ -225,23 +216,6 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). -set_mode_pin(VHostPath, Queue, Disk) - when is_binary(VHostPath) andalso is_binary(Queue) -> - with(rabbit_misc:r(VHostPath, queue, Queue), - fun(Q) -> case Disk of - true -> rabbit_queue_mode_manager:pin_to_disk - (Q #amqqueue.pid); - false -> rabbit_queue_mode_manager:unpin_from_disk - (Q #amqqueue.pid) - end - end). - -set_mode(QPid, Mode) -> - gen_server2:pcast(QPid, 10, {set_mode, Mode}). - -report_memory(QPid) -> - gen_server2:cast(QPid, report_memory). - info(#amqqueue{ pid = QPid }) -> gen_server2:pcall(QPid, 9, info, infinity). @@ -329,10 +303,10 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> infinity). notify_sent(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {notify_sent, ChPid}). + gen_server2:cast(QPid, {notify_sent, ChPid}). unblock(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {unblock, ChPid}). + gen_server2:cast(QPid, {unblock, ChPid}). internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 14a0370d..fe2e8509 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -38,12 +38,10 @@ -define(UNSENT_MESSAGE_LIMIT, 100). -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds -export([start_link/1]). --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1]). +-export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]). -import(queue). -import(erlang). @@ -54,12 +52,10 @@ owner, exclusive_consumer, has_had_consumers, - mixed_state, next_msg_id, + message_buffer, active_consumers, - blocked_consumers, - memory_report_timer - }). + blocked_consumers}). -record(consumer, {tag, ack_required}). @@ -88,9 +84,7 @@ acks_uncommitted, consumers, transactions, - memory, - mode - ]). + memory]). %%---------------------------------------------------------------------------- @@ -99,35 +93,24 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable }) -> +init(Q) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), - ok = rabbit_queue_mode_manager:register - (self(), false, rabbit_amqqueue, set_mode, [self()]), - {ok, MS} = rabbit_mixed_queue:init(QName, Durable), - State = #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - mixed_state = MS, - next_msg_id = 1, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - memory_report_timer = undefined - }, - %% first thing we must do is report_memory which will clear out - %% the 'undefined' values in gain and loss in mixed_queue state - {ok, start_memory_timer(State), hibernate, + {ok, #q{q = Q, + owner = none, + exclusive_consumer = none, + has_had_consumers = false, + next_msg_id = 1, + message_buffer = queue:new(), + active_consumers = queue:new(), + blocked_consumers = queue:new()}, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. terminate(_Reason, State) -> %% FIXME: How do we cancel active subscriptions? QName = qname(State), - NewState = - lists:foldl(fun (Txn, State1) -> - rollback_transaction(Txn, State1) - end, State, all_tx()), - rabbit_mixed_queue:delete_queue(NewState #q.mixed_state), - stop_memory_timer(NewState), + lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, + all_tx()), + ok = purge_message_buffer(QName, State#q.message_buffer), ok = rabbit_amqqueue:internal_delete(QName). code_change(_OldVsn, State, _Extra) -> @@ -135,24 +118,9 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- -reply(Reply, NewState) -> - {reply, Reply, start_memory_timer(NewState), hibernate}. +reply(Reply, NewState) -> {reply, Reply, NewState, hibernate}. -noreply(NewState) -> - {noreply, start_memory_timer(NewState), hibernate}. - -start_memory_timer(State = #q { memory_report_timer = undefined }) -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_amqqueue, report_memory, [self()]), - report_memory(false, State #q { memory_report_timer = TRef }); -start_memory_timer(State) -> - State. - -stop_memory_timer(State = #q { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #q { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #q { memory_report_timer = undefined }. +noreply(NewState) -> {noreply, NewState, hibernate}. lookup_ch(ChPid) -> case get({ch, ChPid}) of @@ -199,11 +167,12 @@ record_current_channel_tx(ChPid, Txn) -> %% that wasn't happening already) store_ch_record((ch_record(ChPid))#cr{txn = Txn}). -deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers, - next_msg_id = NextId}) -> +deliver_immediately(Message, Delivered, + State = #q{q = #amqqueue{name = QName}, + active_consumers = ActiveConsumers, + blocked_consumers = BlockedConsumers, + next_msg_id = NextId}) -> + ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), case queue:out(ActiveConsumers) of {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, ack_required = AckRequired}}}, @@ -211,21 +180,15 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, C = #cr{limiter_pid = LimiterPid, unsent_message_count = Count, unacked_messages = UAM} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of + case rabbit_limiter:can_send(LimiterPid, self(), AckRequired) of true -> - {{Msg, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Msg]), rabbit_channel:deliver( ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, IsDelivered, Msg}), - NewUAM = - case AckRequired of - true -> dict:store(NextId, {Msg, AckTag}, UAM); - false -> UAM - end, + {QName, self(), NextId, Delivered, Message}), + NewUAM = case AckRequired of + true -> dict:store(NextId, Message, UAM); + false -> UAM + end, NewC = C#cr{unsent_message_count = Count + 1, unacked_messages = NewUAM}, store_ch_record(NewC), @@ -241,113 +204,54 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, {ActiveConsumers1, queue:in(QEntry, BlockedConsumers1)} end, - State2 = State1 #q { - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers, - next_msg_id = NextId + 1 - }, - deliver_queue(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> + {offered, AckRequired, + State#q{active_consumers = NewActiveConsumers, + blocked_consumers = NewBlockedConsumers, + next_msg_id = NextId + 1}}; + false -> store_ch_record(C#cr{is_limit_active = true}), {NewActiveConsumers, NewBlockedConsumers} = move_consumers(ChPid, ActiveConsumers, BlockedConsumers), - deliver_queue( - Funs, FunAcc, + deliver_immediately( + Message, Delivered, State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} + blocked_consumers = NewBlockedConsumers}) end; {empty, _} -> - {FunAcc, State} + {not_offered, State} end. -deliver_from_queue_pred({IsEmpty, _AutoAcks}, _State) -> - not IsEmpty. -deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, - State = #q { mixed_state = MS }) -> - {{Msg, IsDelivered, AckTag, Remaining}, MS1} = - rabbit_mixed_queue:deliver(MS), - AutoAcks1 = - case AckRequired of - true -> AutoAcks; - false -> [{Msg, AckTag} | AutoAcks] - end, - {{Msg, IsDelivered, AckTag}, {0 == Remaining, AutoAcks1}, - State #q { mixed_state = MS1 }}. - -run_message_queue(State = #q { mixed_state = MS }) -> - Funs = { fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3 }, - IsEmpty = rabbit_mixed_queue:is_empty(MS), - {{_IsEmpty1, AutoAcks}, State1} = - deliver_queue(Funs, {IsEmpty, []}, State), - {ok, MS1} = - rabbit_mixed_queue:ack(AutoAcks, State1 #q.mixed_state), - State1 #q { mixed_state = MS1 }. - -attempt_immediate_delivery(none, _ChPid, Msg, State) -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1) -> - {AckTag, State2} = - case AckRequired of - true -> - {ok, AckTag1, MS} = - rabbit_mixed_queue:publish_delivered( - Msg, State1 #q.mixed_state), - {AckTag1, State1 #q { mixed_state = MS }}; - false -> - {noack, State1} - end, - {{Msg, false, AckTag}, true, State2} - end, - deliver_queue({ PredFun, DeliverFun }, false, State); -attempt_immediate_delivery(Txn, ChPid, Msg, State) -> - {ok, MS} = rabbit_mixed_queue:tx_publish(Msg, State #q.mixed_state), - record_pending_message(Txn, ChPid, Msg), - {true, State #q { mixed_state = MS }}. - -deliver_or_enqueue(Txn, ChPid, Msg, State) -> - case attempt_immediate_delivery(Txn, ChPid, Msg, State) of +attempt_delivery(none, _ChPid, Message, State) -> + case deliver_immediately(Message, false, State) of + {offered, false, State1} -> + {true, State1}; + {offered, true, State1} -> + persist_message(none, qname(State), Message), + persist_delivery(qname(State), Message, false), + {true, State1}; + {not_offered, State1} -> + {false, State1} + end; +attempt_delivery(Txn, ChPid, Message, State) -> + persist_message(Txn, qname(State), Message), + record_pending_message(Txn, ChPid, Message), + {true, State}. + +deliver_or_enqueue(Txn, ChPid, Message, State) -> + case attempt_delivery(Txn, ChPid, Message, State) of {true, NewState} -> {true, NewState}; {false, NewState} -> - %% Txn is none and no unblocked channels with consumers - {ok, MS} = rabbit_mixed_queue:publish(Msg, State #q.mixed_state), - {false, NewState #q { mixed_state = MS }} - end. - -%% all these messages have already been delivered at least once and -%% not ack'd, but need to be either redelivered or requeued -deliver_or_requeue_n([], State) -> - run_message_queue(State); -deliver_or_requeue_n(MsgsWithAcks, State) -> - Funs = { fun deliver_or_requeue_msgs_pred/2, - fun deliver_or_requeue_msgs_deliver/3 }, - {{_RemainingLengthMinusOne, AutoAcks, OutstandingMsgs}, NewState} = - deliver_queue(Funs, {length(MsgsWithAcks) - 1, [], MsgsWithAcks}, - State), - {ok, MS} = rabbit_mixed_queue:ack(AutoAcks, - NewState #q.mixed_state), - case OutstandingMsgs of - [] -> run_message_queue(NewState #q { mixed_state = MS }); - _ -> {ok, MS1} = rabbit_mixed_queue:requeue(OutstandingMsgs, MS), - NewState #q { mixed_state = MS1 } + persist_message(Txn, qname(State), Message), + NewMB = queue:in({Message, false}, NewState#q.message_buffer), + {false, NewState#q{message_buffer = NewMB}} end. -deliver_or_requeue_msgs_pred({Len, _AcksAcc, _MsgsWithAcks}, _State) -> - -1 < Len. -deliver_or_requeue_msgs_deliver( - false, {Len, AcksAcc, [(MsgAckTag = {Msg, _}) | MsgsWithAcks]}, State) -> - {{Msg, true, noack}, {Len - 1, [MsgAckTag | AcksAcc], MsgsWithAcks}, State}; -deliver_or_requeue_msgs_deliver( - true, {Len, AcksAcc, [{Msg, AckTag} | MsgsWithAcks]}, State) -> - {{Msg, true, AckTag}, {Len - 1, AcksAcc, MsgsWithAcks}, State}. +deliver_or_enqueue_n(Messages, State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(queue:join(MessageBuffer, queue:from_list(Messages)), + State). add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). @@ -381,7 +285,7 @@ possibly_unblock(State, ChPid, Update) -> move_consumers(ChPid, State#q.blocked_consumers, State#q.active_consumers), - run_message_queue( + run_poke_burst( State#q{active_consumers = NewActiveConsumers, blocked_consumers = NewBlockedeConsumers}) end @@ -398,27 +302,27 @@ handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> unacked_messages = UAM} -> erlang:demonitor(MonitorRef), erase({ch, ChPid}), - State1 = - case Txn of - none -> State; - _ -> rollback_transaction(Txn, State) - end, - State2 = - deliver_or_requeue_n( - [MsgWithAck || - {_MsgId, MsgWithAck} <- dict:to_list(UAM)], - State1 #q { + case Txn of + none -> ok; + _ -> ok = rollback_work(Txn, qname(State)), + erase_tx(Txn) + end, + NewState = + deliver_or_enqueue_n( + [{Message, true} || + {_Messsage_id, Message} <- dict:to_list(UAM)], + State#q{ exclusive_consumer = case Holder of {ChPid, _} -> none; Other -> Other end, active_consumers = remove_consumers( - ChPid, State1#q.active_consumers), + ChPid, State#q.active_consumers), blocked_consumers = remove_consumers( - ChPid, State1#q.blocked_consumers)}), - case should_auto_delete(State2) of - false -> noreply(State2); - true -> {stop, normal, State2} + ChPid, State#q.blocked_consumers)}), + case should_auto_delete(NewState) of + false -> noreply(NewState); + true -> {stop, normal, NewState} end end. @@ -441,6 +345,26 @@ check_exclusive_access(none, true, State) -> false -> in_use end. +run_poke_burst(State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(MessageBuffer, State). + +run_poke_burst(MessageBuffer, State) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> + case deliver_immediately(Message, Delivered, State) of + {offered, true, NewState} -> + persist_delivery(qname(State), Message, Delivered), + run_poke_burst(BufferTail, NewState); + {offered, false, NewState} -> + persist_auto_ack(qname(State), Message), + run_poke_burst(BufferTail, NewState); + {not_offered, NewState} -> + NewState#q{message_buffer = MessageBuffer} + end; + {empty, _} -> + State#q{message_buffer = MessageBuffer} + end. + is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso queue:is_empty(State#q.blocked_consumers). @@ -449,6 +373,62 @@ maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). qname(#q{q = #amqqueue{name = QName}}) -> QName. +persist_message(_Txn, _QName, #basic_message{persistent_key = none}) -> + ok; +persist_message(Txn, QName, Message) -> + M = Message#basic_message{ + %% don't persist any recoverable decoded properties, rebuild from properties_bin on restore + content = rabbit_binary_parser:clear_decoded_content( + Message#basic_message.content)}, + persist_work(Txn, QName, + [{publish, M, {QName, M#basic_message.persistent_key}}]). + +persist_delivery(_QName, _Message, + true) -> + ok; +persist_delivery(_QName, #basic_message{persistent_key = none}, + _Delivered) -> + ok; +persist_delivery(QName, #basic_message{persistent_key = PKey}, + _Delivered) -> + persist_work(none, QName, [{deliver, {QName, PKey}}]). + +persist_acks(Txn, QName, Messages) -> + persist_work(Txn, QName, + [{ack, {QName, PKey}} || + #basic_message{persistent_key = PKey} <- Messages, + PKey =/= none]). + +persist_auto_ack(_QName, #basic_message{persistent_key = none}) -> + ok; +persist_auto_ack(QName, #basic_message{persistent_key = PKey}) -> + %% auto-acks are always non-transactional + rabbit_persister:dirty_work([{ack, {QName, PKey}}]). + +persist_work(_Txn,_QName, []) -> + ok; +persist_work(none, _QName, WorkList) -> + rabbit_persister:dirty_work(WorkList); +persist_work(Txn, QName, WorkList) -> + mark_tx_persistent(Txn), + rabbit_persister:extend_transaction({Txn, QName}, WorkList). + +commit_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:commit_transaction/1, + Txn, QName). + +rollback_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:rollback_transaction/1, + Txn, QName). + +%% optimisation: don't do unnecessary work +%% it would be nice if this was handled by the persister +do_if_persistent(F, Txn, QName) -> + case is_tx_persistent(Txn) of + false -> ok; + true -> ok = F({Txn, QName}) + end. + lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx{ch_pid = none, @@ -470,14 +450,19 @@ all_tx_record() -> all_tx() -> [Txn || {{txn, Txn}, _} <- get()]. -record_pending_message(Txn, ChPid, Message = - #basic_message { is_persistent = IsPersistent }) -> - Tx = #tx{pending_messages = Pending, is_persistent = IsPersistentTxn } = - lookup_tx(Txn), +mark_tx_persistent(Txn) -> + Tx = lookup_tx(Txn), + store_tx(Txn, Tx#tx{is_persistent = true}). + +is_tx_persistent(Txn) -> + #tx{is_persistent = Res} = lookup_tx(Txn), + Res. + +record_pending_message(Txn, ChPid, Message) -> + Tx = #tx{pending_messages = Pending} = lookup_tx(Txn), record_current_channel_tx(ChPid, Txn), - store_tx(Txn, Tx #tx { pending_messages = [Message | Pending], - is_persistent = IsPersistentTxn orelse IsPersistent - }). + store_tx(Txn, Tx#tx{pending_messages = [{Message, false} | Pending], + ch_pid = ChPid}). record_pending_acks(Txn, ChPid, MsgIds) -> Tx = #tx{pending_acks = Pending} = lookup_tx(Txn), @@ -485,53 +470,48 @@ record_pending_acks(Txn, ChPid, MsgIds) -> store_tx(Txn, Tx#tx{pending_acks = [MsgIds | Pending], ch_pid = ChPid}). -commit_transaction(Txn, State) -> - #tx { ch_pid = ChPid, - pending_messages = PendingMessages, - pending_acks = PendingAcks - } = lookup_tx(Txn), - PendingMessagesOrdered = lists:reverse(PendingMessages), - PendingAcksOrdered = lists:append(PendingAcks), - Acks = - case lookup_ch(ChPid) of - not_found -> []; - C = #cr { unacked_messages = UAM } -> - {MsgWithAcks, Remaining} = - collect_messages(PendingAcksOrdered, UAM), - store_ch_record(C#cr{unacked_messages = Remaining}), - MsgWithAcks - end, - {ok, MS} = rabbit_mixed_queue:tx_commit( - PendingMessagesOrdered, Acks, State #q.mixed_state), - State #q { mixed_state = MS }. - -rollback_transaction(Txn, State) -> - #tx { pending_messages = PendingMessages - } = lookup_tx(Txn), - {ok, MS} = rabbit_mixed_queue:tx_cancel(PendingMessages, - State #q.mixed_state), - erase_tx(Txn), - State #q { mixed_state = MS }. +process_pending(Txn, State) -> + #tx{ch_pid = ChPid, + pending_messages = PendingMessages, + pending_acks = PendingAcks} = lookup_tx(Txn), + case lookup_ch(ChPid) of + not_found -> ok; + C = #cr{unacked_messages = UAM} -> + {_Acked, Remaining} = + collect_messages(lists:append(PendingAcks), UAM), + store_ch_record(C#cr{unacked_messages = Remaining}) + end, + deliver_or_enqueue_n(lists:reverse(PendingMessages), State). -%% {A, B} = collect_messages(C, D) %% A = C `intersect` D; B = D \\ C -%% err, A = C `intersect` D , via projection through the dict that is C collect_messages(MsgIds, UAM) -> lists:mapfoldl( fun (MsgId, D) -> {dict:fetch(MsgId, D), dict:erase(MsgId, D)} end, UAM, MsgIds). +purge_message_buffer(QName, MessageBuffer) -> + Messages = + [[Message || {Message, _Delivered} <- + queue:to_list(MessageBuffer)] | + lists:map( + fun (#cr{unacked_messages = UAM}) -> + [Message || {_MessageId, Message} <- dict:to_list(UAM)] + end, + all_ch_record())], + %% the simplest, though certainly not the most obvious or + %% efficient, way to purge messages from the persister is to + %% artifically ack them. + persist_acks(none, QName, lists:append(Messages)). + infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. i(name, #q{q = #amqqueue{name = Name}}) -> Name; i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(mode, #q{ mixed_state = MS }) -> - rabbit_mixed_queue:info(MS); i(pid, _) -> self(); -i(messages_ready, #q { mixed_state = MS }) -> - rabbit_mixed_queue:length(MS); +i(messages_ready, #q{message_buffer = MessageBuffer}) -> + queue:len(MessageBuffer); i(messages_unacknowledged, _) -> lists:sum([dict:size(UAM) || #cr{unacked_messages = UAM} <- all_ch_record()]); @@ -555,12 +535,6 @@ i(memory, _) -> i(Item, _) -> throw({bad_argument, Item}). -report_memory(Hib, State = #q { mixed_state = MS }) -> - {MS1, MSize, Gain, Loss} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - rabbit_queue_mode_manager:report_memory(self(), MSize, Gain, Loss, Hib), - State #q { mixed_state = MS1 }. - %--------------------------------------------------------------------------- handle_call(info, _From, State) -> @@ -586,8 +560,7 @@ handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> %% just all ready-to-consume queues get the message, with unready %% queues discarding the message? %% - {Delivered, NewState} = - attempt_immediate_delivery(Txn, ChPid, Message, State), + {Delivered, NewState} = attempt_delivery(Txn, ChPid, Message, State), reply(Delivered, NewState); handle_call({deliver, Txn, Message, ChPid}, _From, State) -> @@ -596,11 +569,12 @@ handle_call({deliver, Txn, Message, ChPid}, _From, State) -> reply(Delivered, NewState); handle_call({commit, Txn}, From, State) -> - NewState = commit_transaction(Txn, State), + ok = commit_work(Txn, qname(State)), %% optimisation: we reply straight away so the sender can continue gen_server2:reply(From, ok), + NewState = process_pending(Txn, State), erase_tx(Txn), - noreply(run_message_queue(NewState)); + noreply(NewState); handle_call({notify_down, ChPid}, From, State) -> %% optimisation: we reply straight away so the sender can continue @@ -610,27 +584,25 @@ handle_call({notify_down, ChPid}, From, State) -> handle_call({basic_get, ChPid, NoAck}, _From, State = #q{q = #amqqueue{name = QName}, next_msg_id = NextId, - mixed_state = MS - }) -> - case rabbit_mixed_queue:deliver(MS) of - {empty, MS1} -> reply(empty, State #q { mixed_state = MS1 }); - {{Msg, IsDelivered, AckTag, Remaining}, MS1} -> + message_buffer = MessageBuffer}) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> AckRequired = not(NoAck), - {ok, MS3} = - case AckRequired of - true -> - C = #cr{unacked_messages = UAM} = ch_record(ChPid), - NewUAM = dict:store(NextId, {Msg, AckTag}, UAM), - store_ch_record(C#cr{unacked_messages = NewUAM}), - {ok, MS1}; - false -> - rabbit_mixed_queue:ack([{Msg, AckTag}], MS1) - end, - Message = {QName, self(), NextId, IsDelivered, Msg}, - reply({ok, Remaining, Message}, - State #q { next_msg_id = NextId + 1, - mixed_state = MS3 - }) + case AckRequired of + true -> + persist_delivery(QName, Message, Delivered), + C = #cr{unacked_messages = UAM} = ch_record(ChPid), + NewUAM = dict:store(NextId, Message, UAM), + store_ch_record(C#cr{unacked_messages = NewUAM}); + false -> + persist_auto_ack(QName, Message) + end, + Msg = {QName, self(), NextId, Delivered, Message}, + reply({ok, queue:len(BufferTail), Msg}, + State#q{message_buffer = BufferTail, + next_msg_id = NextId + 1}); + {empty, _} -> + reply(empty, State) end; handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, @@ -651,14 +623,15 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, ack_required = not(NoAck)}, store_ch_record(C#cr{consumer_count = ConsumerCount +1, limiter_pid = LimiterPid}), - case ConsumerCount of - 0 -> ok = rabbit_limiter:register(LimiterPid, self()); - _ -> ok + if ConsumerCount == 0 -> + ok = rabbit_limiter:register(LimiterPid, self()); + true -> + ok end, - ExclusiveConsumer = case ExclusiveConsume of - true -> {ChPid, ConsumerTag}; - false -> ExistingHolder - end, + ExclusiveConsumer = + if ExclusiveConsume -> {ChPid, ConsumerTag}; + true -> ExistingHolder + end, State1 = State#q{has_had_consumers = true, exclusive_consumer = ExclusiveConsumer}, ok = maybe_send_reply(ChPid, OkMsg), @@ -669,7 +642,7 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, add_consumer( ChPid, Consumer, State1#q.blocked_consumers)}; - false -> run_message_queue( + false -> run_poke_burst( State1#q{ active_consumers = add_consumer( @@ -688,10 +661,11 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, reply(ok, State); C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - ok = case ConsumerCount of - 1 -> rabbit_limiter:unregister(LimiterPid, self()); - _ -> ok - end, + if ConsumerCount == 1 -> + ok = rabbit_limiter:unregister(LimiterPid, self()); + true -> + ok + end, ok = maybe_send_reply(ChPid, OkMsg), NewState = State#q{exclusive_consumer = cancel_holder(ChPid, @@ -710,15 +684,14 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, end; handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, - mixed_state = MS, + message_buffer = MessageBuffer, active_consumers = ActiveConsumers}) -> - Length = rabbit_mixed_queue:length(MS), - reply({ok, Name, Length, queue:len(ActiveConsumers)}, State); + reply({ok, Name, queue:len(MessageBuffer), queue:len(ActiveConsumers)}, + State); handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q { mixed_state = MS }) -> - Length = rabbit_mixed_queue:length(MS), - IsEmpty = Length == 0, + State = #q{message_buffer = MessageBuffer}) -> + IsEmpty = queue:is_empty(MessageBuffer), IsUnused = is_unused(State), if IfEmpty and not(IsEmpty) -> @@ -726,16 +699,16 @@ handle_call({delete, IfUnused, IfEmpty}, _From, IfUnused and not(IsUnused) -> reply({error, in_use}, State); true -> - {stop, normal, {ok, Length}, State} + {stop, normal, {ok, queue:len(MessageBuffer)}, State} end; -handle_call(purge, _From, State) -> - {Count, MS} = rabbit_mixed_queue:purge(State #q.mixed_state), - reply({ok, Count}, - State #q { mixed_state = MS }); +handle_call(purge, _From, State = #q{message_buffer = MessageBuffer}) -> + ok = purge_message_buffer(qname(State), MessageBuffer), + reply({ok, queue:len(MessageBuffer)}, + State#q{message_buffer = queue:new()}); -handle_call({claim_queue, ReaderPid}, _From, - State = #q{owner = Owner, exclusive_consumer = Holder}) -> +handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, + exclusive_consumer = Holder}) -> case Owner of none -> case check_exclusive_access(Holder, true, State) of @@ -748,10 +721,7 @@ handle_call({claim_queue, ReaderPid}, _From, %% pid... reply(locked, State); ok -> - reply(ok, State #q { owner = - {ReaderPid, - erlang:monitor(process, ReaderPid)} }) - + reply(ok, State#q{owner = {ReaderPid, erlang:monitor(process, ReaderPid)}}) end; {ReaderPid, _MonitorRef} -> reply(ok, State); @@ -769,21 +739,24 @@ handle_cast({ack, Txn, MsgIds, ChPid}, State) -> not_found -> noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, Remaining} = collect_messages(MsgIds, UAM), + {Acked, Remaining} = collect_messages(MsgIds, UAM), + persist_acks(Txn, qname(State), Acked), case Txn of none -> - {ok, MS} = - rabbit_mixed_queue:ack(MsgWithAcks, State #q.mixed_state), - store_ch_record(C#cr{unacked_messages = Remaining}), - noreply(State #q { mixed_state = MS }); + store_ch_record(C#cr{unacked_messages = Remaining}); _ -> - record_pending_acks(Txn, ChPid, MsgIds), - noreply(State) - end + record_pending_acks(Txn, ChPid, MsgIds) + end, + noreply(State) end; handle_cast({rollback, Txn}, State) -> - noreply(rollback_transaction(Txn, State)); + ok = rollback_work(Txn, qname(State)), + erase_tx(Txn), + noreply(State); + +handle_cast({redeliver, Messages}, State) -> + noreply(deliver_or_enqueue_n(Messages, State)); handle_cast({requeue, MsgIds, ChPid}, State) -> case lookup_ch(ChPid) of @@ -792,9 +765,10 @@ handle_cast({requeue, MsgIds, ChPid}, State) -> [ChPid]), noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, NewUAM} = collect_messages(MsgIds, UAM), + {Messages, NewUAM} = collect_messages(MsgIds, UAM), store_ch_record(C#cr{unacked_messages = NewUAM}), - noreply(deliver_or_requeue_n(MsgWithAcks, State)) + noreply(deliver_or_enqueue_n( + [{Message, true} || Message <- Messages], State)) end; handle_cast({unblock, ChPid}, State) -> @@ -823,22 +797,7 @@ handle_cast({limit, ChPid, LimiterPid}, State) -> end, NewLimited = Limited andalso LimiterPid =/= undefined, C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> - PendingMessages = - lists:flatten([Pending || #tx { pending_messages = Pending} - <- all_tx_record()]), - {ok, MS1} = (case Mode of - disk -> fun rabbit_mixed_queue:to_disk_only_mode/2; - mixed -> fun rabbit_mixed_queue:to_mixed_mode/2 - end)(PendingMessages, MS), - noreply(State #q { mixed_state = MS1 }); - -handle_cast(report_memory, State) -> - %% deliberately don't call noreply/2 as we don't want to restart the timer - %% by unsetting the timer, we force a report on the next normal message - {noreply, State #q { memory_report_timer = undefined }, hibernate}. + end)). handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> @@ -859,10 +818,3 @@ handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> handle_info(Info, State) -> ?LOGDEBUG("Info in queue: ~p~n", [Info]), {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q { mixed_state = MS }) -> - MS1 = rabbit_mixed_queue:maybe_prefetch(MS), - State1 = - stop_memory_timer(report_memory(true, State #q { mixed_state = MS1 })), - %% don't call noreply/1 as that'll restart the memory_report_timer - {hibernate, State1}. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 8adb608f..4033aaaf 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -33,8 +33,8 @@ -include("rabbit.hrl"). -include("rabbit_framing.hrl"). --export([publish/1, message/4, message/5, message/6, delivery/4]). --export([properties/1, publish/4, publish/7]). +-export([publish/1, message/4, properties/1, delivery/4]). +-export([publish/4, publish/7]). -export([build_content/2, from_content/1]). %%---------------------------------------------------------------------------- @@ -48,10 +48,6 @@ -spec(delivery/4 :: (bool(), bool(), maybe(txn()), message()) -> delivery()). -spec(message/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> message()). --spec(message/5 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid()) -> message()). --spec(message/6 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid(), bool()) -> message()). -spec(properties/1 :: (properties_input()) -> amqp_properties()). -spec(publish/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> publish_result()). @@ -95,18 +91,11 @@ from_content(Content) -> {Props, list_to_binary(lists:reverse(FragmentsRev))}. message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, rabbit_guid:guid()). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, false). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, IsPersistent) -> Properties = properties(RawProperties), #basic_message{exchange_name = ExchangeName, routing_key = RoutingKeyBin, content = build_content(Properties, BodyBin), - guid = MsgId, - is_persistent = IsPersistent}. + persistent_key = none}. properties(P = #'P_basic'{}) -> P; diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 397659c1..16b7c938 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -317,11 +317,14 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, %% We decode the content's properties here because we're almost %% certain to want to look at delivery-mode and priority. DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), + PersistentKey = case is_message_persistent(DecodedContent) of + true -> rabbit_guid:guid(); + false -> none + end, Message = #basic_message{exchange_name = ExchangeName, routing_key = RoutingKey, content = DecodedContent, - guid = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent)}, + persistent_key = PersistentKey}, {RoutingRes, DeliveredQPids} = rabbit_exchange:publish( Exchange, diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 99bbb742..37e4d189 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,9 +137,6 @@ Available commands: list_bindings [-p ] list_connections [ ...] - pin_queue_to_disk - unpin_queue_from_disk - Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -155,8 +152,8 @@ virtual host parameter for which to display results. The default value is \"/\". must be a member of the list [name, durable, auto_delete, arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, -messages, acks_uncommitted, consumers, transactions, memory, mode]. The default -is to display name and (number of) messages. +messages, acks_uncommitted, consumers, transactions, memory]. The default is + to display name and (number of) messages. must be a member of the list [name, type, durable, auto_delete, arguments]. The default is to display name and type. @@ -169,9 +166,6 @@ peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. -pin_queue_to_disk will force a queue to be in disk mode. -unpin_queue_from_disk will permit a queue that has been pinned to disk mode -to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -286,18 +280,6 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). -action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> - Inform("Pinning queue ~p in vhost ~p to disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), true]); - -action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> - Inform("Unpinning queue ~p in vhost ~p from disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), false]); - action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl deleted file mode 100644 index 5940f5ad..00000000 --- a/src/rabbit_disk_queue.erl +++ /dev/null @@ -1,1973 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_disk_queue). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([handle_pre_hibernate/1]). - --export([publish/3, deliver/1, phantom_deliver/1, ack/2, - tx_publish/1, tx_commit/3, tx_cancel/1, - requeue/2, purge/1, delete_queue/1, - delete_non_durable_queues/1, auto_ack_next_message/1, - requeue_next_n/2, length/1, foldl/3, prefetch/1 - ]). - --export([filesync/0, cache_info/0]). - --export([stop/0, stop_and_obliterate/0, report_memory/0, - set_mode/1, to_disk_only_mode/0, to_ram_disk_mode/0]). - --include("rabbit.hrl"). - --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_TRANSIENT, 255). --define(WRITE_OK_PERSISTENT, 254). --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(MSG_LOC_NAME, rabbit_disk_queue_msg_location). --define(FILE_SUMMARY_ETS_NAME, rabbit_disk_queue_file_summary). --define(SEQUENCE_ETS_NAME, rabbit_disk_queue_sequences). --define(CACHE_ETS_NAME, rabbit_disk_queue_cache). --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). --define(FILE_EXTENSION_DETS, ".dets"). --define(FILE_PACKING_ADJUSTMENT, (1 + (2* (?INTEGER_SIZE_BYTES)))). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds --define(BATCH_SIZE, 10000). --define(CACHE_MAX_SIZE, 10485760). - --define(SERVER, ?MODULE). - --define(MAX_READ_FILE_HANDLES, 256). --define(FILE_SIZE_LIMIT, (256*1024*1024)). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(dqstate, - {msg_location_dets, %% where are messages? - msg_location_ets, %% as above, but for ets version - operation_mode, %% ram_disk | disk_only - file_summary, %% what's in the files? - sequences, %% next read and write for each q - current_file_num, %% current file name as number - current_file_name, %% current file name - current_file_handle, %% current file handle - current_offset, %% current offset within current file - current_dirty, %% has the current file been written to - %% since the last fsync? - file_size_limit, %% how big can our files get? - read_file_handles, %% file handles for reading (LRU) - read_file_handles_limit, %% how many file handles can we open? - on_sync_txns, %% list of commiters to run on sync (reversed) - commit_timer_ref, %% TRef for our interval timer - last_sync_offset, %% current_offset at the last time we sync'd - message_cache, %% ets message cache - memory_report_timer, %% TRef for the memory report timer - wordsize, %% bytes in a word on this platform - mnesia_bytes_per_record, %% bytes per record in mnesia in ram_disk mode - ets_bytes_per_record %% bytes per record in msg_location_ets - }). - -%% The components: -%% -%% MsgLocation: this is a (d)ets table which contains: -%% {MsgId, RefCount, File, Offset, TotalSize, IsPersistent} -%% FileSummary: this is an ets table which contains: -%% {File, ValidTotalSize, ContiguousTop, Left, Right} -%% Sequences: this is an ets table which contains: -%% {Q, ReadSeqId, WriteSeqId} -%% rabbit_disk_queue: this is an mnesia table which contains: -%% #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, -%% is_delivered = IsDelivered, -%% msg_id = MsgId -%% } -%% - -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the MsgLocation table); how much useful data is in each file and -%% which files are on the left and right of each other. This is the -%% purpose of the FileSummary table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file, whilst ContiguousTop contains the amount of -%% valid data right at the start of each file. These are needed for -%% garbage collection. -%% -%% On publish, we write the message to disk, record the changes to -%% FileSummary and MsgLocation, and, should this be either a plain -%% publish, or followed by a tx_commit, we record the message in the -%% mnesia table. Sequences exists to enforce ordering of messages as -%% they are published within a queue. -%% -%% On delivery, we read the next message to be read from disk -%% (according to the ReadSeqId for the given queue) and record in the -%% mnesia table that the message has been delivered. -%% -%% On ack we remove the relevant entry from MsgLocation, update -%% FileSummary and delete from the mnesia table. -%% -%% In order to avoid extra mnesia searching, we return the SeqId -%% during delivery which must be returned in ack - it is not possible -%% to ack from MsgId alone. - -%% As messages are ack'd, holes develop in the files. When we discover -%% that either a file is now empty or that it can be combined with the -%% useful data in either its left or right file, we compact the two -%% files together. This keeps disk utilisation high and aids -%% performance. -%% -%% Given the compaction between two files, the left file is considered -%% the ultimate destination for the good data in the right file. If -%% necessary, the good data in the left file which is fragmented -%% throughout the file is written out to a temporary file, then read -%% back in to form a contiguous chunk of good data at the start of the -%% left file. Thus the left file is garbage collected and -%% compacted. Then the good data from the right file is copied onto -%% the end of the left file. MsgLocation and FileSummary tables are -%% updated. -%% -%% On startup, we scan the files we discover, dealing with the -%% possibilites of a crash have occured during a compaction (this -%% consists of tidyup - the compaction is deliberately designed such -%% that data is duplicated on disk rather than risking it being lost), -%% and rebuild the dets and ets tables (MsgLocation, FileSummary, -%% Sequences) from what we find. We ensure that the messages we have -%% discovered on disk match exactly with the messages recorded in the -%% mnesia table. - -%% MsgLocation is deliberately a dets table, and the mnesia table is -%% set to be a disk_only_table in order to ensure that we are not RAM -%% constrained. However, for performance reasons, it is possible to -%% call to_ram_disk_mode/0 which will alter the mnesia table to -%% disc_copies and convert MsgLocation to an ets table. This results -%% in a massive performance improvement, at the expense of greater RAM -%% usage. The idea is that when memory gets tight, we switch to -%% disk_only mode but otherwise try to run in ram_disk mode. - -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten (yes, this is -%% the data the size of which is tracked by the ContiguousTop -%% variable. Judicious use of a mirror is required). -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). - -%% ---- SPECS ---- - --ifdef(use_specs). - --type(seq_id() :: non_neg_integer()). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(publish/3 :: (queue_name(), message(), bool()) -> 'ok'). --spec(deliver/1 :: (queue_name()) -> - ('empty' | {message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}, non_neg_integer()})). --spec(phantom_deliver/1 :: (queue_name()) -> - ( 'empty' | {msg_id(), bool(), bool(), {msg_id(), seq_id()}, - non_neg_integer()})). --spec(prefetch/1 :: (queue_name()) -> 'ok'). --spec(ack/2 :: (queue_name(), [{msg_id(), seq_id()}]) -> 'ok'). --spec(auto_ack_next_message/1 :: (queue_name()) -> 'ok'). --spec(tx_publish/1 :: (message()) -> 'ok'). --spec(tx_commit/3 :: (queue_name(), [{msg_id(), bool()}], - [{msg_id(), seq_id()}]) -> 'ok'). --spec(tx_cancel/1 :: ([msg_id()]) -> 'ok'). --spec(requeue/2 :: (queue_name(), [{{msg_id(), seq_id()}, bool()}]) -> 'ok'). --spec(requeue_next_n/2 :: (queue_name(), non_neg_integer()) -> 'ok'). --spec(purge/1 :: (queue_name()) -> non_neg_integer()). --spec(delete_queue/1 :: (queue_name()) -> 'ok'). --spec(delete_non_durable_queues/1 :: (set()) -> 'ok'). --spec(length/1 :: (queue_name()) -> non_neg_integer()). --spec(foldl/3 :: (fun (({message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}}, A) -> - A), A, queue_name()) -> A). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_obliterate/0 :: () -> 'ok'). --spec(to_disk_only_mode/0 :: () -> 'ok'). --spec(to_ram_disk_mode/0 :: () -> 'ok'). --spec(filesync/0 :: () -> 'ok'). --spec(cache_info/0 :: () -> [{atom(), term()}]). --spec(report_memory/0 :: () -> 'ok'). --spec(set_mode/1 :: ('disk' | 'mixed') -> 'ok'). - --endif. - -%% ---- PUBLIC API ---- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, - [?FILE_SIZE_LIMIT, ?MAX_READ_FILE_HANDLES], []). - -publish(Q, Message = #basic_message {}, IsDelivered) -> - gen_server2:cast(?SERVER, {publish, Q, Message, IsDelivered}). - -deliver(Q) -> - gen_server2:call(?SERVER, {deliver, Q}, infinity). - -phantom_deliver(Q) -> - gen_server2:call(?SERVER, {phantom_deliver, Q}, infinity). - -prefetch(Q) -> - gen_server2:pcast(?SERVER, -1, {prefetch, Q, self()}). - -ack(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {ack, Q, MsgSeqIds}). - -auto_ack_next_message(Q) -> - gen_server2:cast(?SERVER, {auto_ack_next_message, Q}). - -tx_publish(Message = #basic_message {}) -> - gen_server2:cast(?SERVER, {tx_publish, Message}). - -tx_commit(Q, PubMsgIds, AckSeqIds) - when is_list(PubMsgIds) andalso is_list(AckSeqIds) -> - gen_server2:call(?SERVER, {tx_commit, Q, PubMsgIds, AckSeqIds}, infinity). - -tx_cancel(MsgIds) when is_list(MsgIds) -> - gen_server2:cast(?SERVER, {tx_cancel, MsgIds}). - -requeue(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {requeue, Q, MsgSeqIds}). - -requeue_next_n(Q, N) when is_integer(N) -> - gen_server2:cast(?SERVER, {requeue_next_n, Q, N}). - -purge(Q) -> - gen_server2:call(?SERVER, {purge, Q}, infinity). - -delete_queue(Q) -> - gen_server2:cast(?SERVER, {delete_queue, Q}). - -delete_non_durable_queues(DurableQueues) -> - gen_server2:call(?SERVER, {delete_non_durable_queues, DurableQueues}, - infinity). - -length(Q) -> - gen_server2:call(?SERVER, {length, Q}, infinity). - -foldl(Fun, Init, Acc) -> - gen_server2:call(?SERVER, {foldl, Fun, Init, Acc}, infinity). - -stop() -> - gen_server2:call(?SERVER, stop, infinity). - -stop_and_obliterate() -> - gen_server2:call(?SERVER, stop_vaporise, infinity). - -to_disk_only_mode() -> - gen_server2:pcall(?SERVER, 9, to_disk_only_mode, infinity). - -to_ram_disk_mode() -> - gen_server2:pcall(?SERVER, 9, to_ram_disk_mode, infinity). - -filesync() -> - gen_server2:pcast(?SERVER, 10, filesync). - -cache_info() -> - gen_server2:call(?SERVER, cache_info, infinity). - -report_memory() -> - gen_server2:cast(?SERVER, report_memory). - -set_mode(Mode) -> - gen_server2:pcast(?SERVER, 10, {set_mode, Mode}). - -%% ---- GEN-SERVER INTERNAL API ---- - -init([FileSizeLimit, ReadFileHandlesLimit]) -> - %% If the gen_server is part of a supervision tree and is ordered - %% by its supervisor to terminate, terminate will be called with - %% Reason=shutdown if the following conditions apply: - %% * the gen_server has been set to trap exit signals, and - %% * the shutdown strategy as defined in the supervisor's - %% child specification is an integer timeout value, not - %% brutal_kill. - %% Otherwise, the gen_server will be immediately terminated. - process_flag(trap_exit, true), - ok = rabbit_queue_mode_manager:register - (self(), true, rabbit_disk_queue, set_mode, []), - Node = node(), - ok = - case mnesia:change_table_copy_type(rabbit_disk_queue, Node, - disc_copies) of - {atomic, ok} -> ok; - {aborted, {already_exists, rabbit_disk_queue, Node, - disc_copies}} -> ok; - E -> E - end, - ok = filelib:ensure_dir(form_filename("nothing")), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - {ok, MsgLocationDets} = - dets:open_file(?MSG_LOC_NAME, - [{file, form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)}, - {min_no_slots, 1024*1024}, - %% man says this should be <= 32M. But it works... - {max_no_slots, 30*1024*1024}, - {type, set} - ]), - - %% it would be better to have this as private, but dets:from_ets/2 - %% seems to blow up if it is set private - MsgLocationEts = ets:new(?MSG_LOC_NAME, [set, protected]), - - TRef = start_memory_timer(), - - InitName = "0" ++ ?FILE_EXTENSION, - State = - #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - operation_mode = ram_disk, - file_summary = ets:new(?FILE_SUMMARY_ETS_NAME, - [set, private]), - sequences = ets:new(?SEQUENCE_ETS_NAME, - [set, private]), - current_file_num = 0, - current_file_name = InitName, - current_file_handle = undefined, - current_offset = 0, - current_dirty = false, - file_size_limit = FileSizeLimit, - read_file_handles = {dict:new(), gb_trees:empty()}, - read_file_handles_limit = ReadFileHandlesLimit, - on_sync_txns = [], - commit_timer_ref = undefined, - last_sync_offset = 0, - message_cache = ets:new(?CACHE_ETS_NAME, - [set, private]), - memory_report_timer = TRef, - wordsize = erlang:system_info(wordsize), - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined - }, - {ok, State1 = #dqstate { current_file_name = CurrentName, - current_offset = Offset } } = - load_from_disk(State), - Path = form_filename(CurrentName), - Exists = case file:read_file_info(Path) of - {error,enoent} -> false; - {ok, _} -> true - end, - %% read is only needed so that we can seek - {ok, FileHdl} = file:open(Path, [read, write, raw, binary, delayed_write]), - case Exists of - true -> {ok, Offset} = file:position(FileHdl, {bof, Offset}); - false -> %% new file, so preallocate - ok = preallocate(FileHdl, FileSizeLimit, Offset) - end, - State2 = State1 #dqstate { current_file_handle = FileHdl }, - %% by reporting a memory use of 0, we guarantee the manager will - %% grant us to ram_disk mode. We have to start in ram_disk mode - %% because we can't find values for mnesia_bytes_per_record or - %% ets_bytes_per_record otherwise. - ok = rabbit_queue_mode_manager:report_memory(self(), 0, false), - ok = report_memory(false, State2), - {ok, State2, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, true, false, true, State), - reply(Result, State1); -handle_call({phantom_deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, false, false, true, State), - reply(Result, State1); -handle_call({tx_commit, Q, PubMsgIds, AckSeqIds}, From, State) -> - State1 = - internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, State), - noreply(State1); -handle_call({purge, Q}, _From, State) -> - {ok, Count, State1} = internal_purge(Q, State), - reply(Count, State1); -handle_call({length, Q}, _From, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - reply(WriteSeqId - ReadSeqId, State); -handle_call({foldl, Fun, Init, Q}, _From, State) -> - {ok, Result, State1} = internal_foldl(Q, Fun, Init, State), - reply(Result, State1); -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; %% gen_server now calls terminate -handle_call(stop_vaporise, _From, State) -> - State1 = #dqstate { file_summary = FileSummary, - sequences = Sequences } = - shutdown(State), %% tidy up file handles early - {atomic, ok} = mnesia:clear_table(rabbit_disk_queue), - true = ets:delete(FileSummary), - true = ets:delete(Sequences), - lists:foreach(fun file:delete/1, filelib:wildcard(form_filename("*"))), - {stop, normal, ok, - State1 #dqstate { current_file_handle = undefined, - read_file_handles = {dict:new(), gb_trees:empty()}}}; - %% gen_server now calls terminate, which then calls shutdown -handle_call(to_disk_only_mode, _From, State) -> - reply(ok, to_disk_only_mode(State)); -handle_call(to_ram_disk_mode, _From, State) -> - reply(ok, to_ram_disk_mode(State)); -handle_call({delete_non_durable_queues, DurableQueues}, _From, State) -> - {ok, State1} = internal_delete_non_durable_queues(DurableQueues, State), - reply(ok, State1); -handle_call(cache_info, _From, State = #dqstate { message_cache = Cache }) -> - reply(ets:info(Cache), State). - -handle_cast({publish, Q, Message, IsDelivered}, State) -> - {ok, _MsgSeqId, State1} = internal_publish(Q, Message, IsDelivered, State), - noreply(State1); -handle_cast({ack, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_ack(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({auto_ack_next_message, Q}, State) -> - {ok, State1} = internal_auto_ack(Q, State), - noreply(State1); -handle_cast({tx_publish, Message}, State) -> - {ok, State1} = internal_tx_publish(Message, State), - noreply(State1); -handle_cast({tx_cancel, MsgIds}, State) -> - {ok, State1} = internal_tx_cancel(MsgIds, State), - noreply(State1); -handle_cast({requeue, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_requeue(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({requeue_next_n, Q, N}, State) -> - {ok, State1} = internal_requeue_next_n(Q, N, State), - noreply(State1); -handle_cast({delete_queue, Q}, State) -> - {ok, State1} = internal_delete_queue(Q, State), - noreply(State1); -handle_cast(filesync, State) -> - noreply(sync_current_file_handle(State)); -handle_cast({set_mode, Mode}, State) -> - noreply((case Mode of - disk -> fun to_disk_only_mode/1; - mixed -> fun to_ram_disk_mode/1 - end)(State)); -handle_cast(report_memory, State) -> - %% call noreply1/2, not noreply/1/2, as we don't want to restart the - %% memory_report_timer - %% by unsetting the timer, we force a report on the next normal message - noreply1(State #dqstate { memory_report_timer = undefined }); -handle_cast({prefetch, Q, From}, State) -> - {ok, Result, State1} = internal_deliver(Q, true, true, false, State), - Cont = rabbit_misc:with_exit_handler( - fun () -> false end, - fun () -> - ok = rabbit_queue_prefetcher:publish(From, Result), - true - end), - State3 = - case Cont of - true -> - case internal_deliver(Q, false, false, true, State1) of - {ok, empty, State2} -> State2; - {ok, {_MsgId, _IsPersistent, _Delivered, _MsgSeqId, _Rem}, - State2} -> State2 - end; - false -> State1 - end, - noreply(State3). - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(timeout, State) -> - %% must have commit_timer set, so timeout was 0, and we're not hibernating - noreply(sync_current_file_handle(State)). - -handle_pre_hibernate(State) -> - %% don't use noreply/1 or noreply1/1 as they'll restart the memory timer - ok = report_memory(true, State), - {hibernate, stop_memory_timer(State)}. - -terminate(_Reason, State) -> - shutdown(State). - -shutdown(State = #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - current_file_handle = FileHdl, - read_file_handles = {ReadHdls, _ReadHdlsAge} - }) -> - %% deliberately ignoring return codes here - State1 = stop_commit_timer(stop_memory_timer(State)), - dets:close(MsgLocationDets), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - true = ets:delete_all_objects(MsgLocationEts), - case FileHdl of - undefined -> ok; - _ -> sync_current_file_handle(State), - file:close(FileHdl) - end, - dict:fold(fun (_File, Hdl, _Acc) -> - file:close(Hdl) - end, ok, ReadHdls), - State1 #dqstate { current_file_handle = undefined, - current_dirty = false, - read_file_handles = {dict:new(), gb_trees:empty()}, - memory_report_timer = undefined - }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%% ---- UTILITY FUNCTIONS ---- - -stop_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #dqstate { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { memory_report_timer = undefined }. - -start_memory_timer() -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_disk_queue, report_memory, []), - TRef. - -start_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - ok = report_memory(false, State), - State #dqstate { memory_report_timer = start_memory_timer() }; -start_memory_timer(State) -> - State. - -report_memory(Hibernating, State) -> - Bytes = memory_use(State), - rabbit_queue_mode_manager:report_memory(self(), trunc(2.5 * Bytes), - Hibernating). - -memory_use(#dqstate { operation_mode = ram_disk, - file_summary = FileSummary, - sequences = Sequences, - msg_location_ets = MsgLocationEts, - message_cache = Cache, - wordsize = WordSize - }) -> - WordSize * (mnesia:table_info(rabbit_disk_queue, memory) + - ets:info(MsgLocationEts, memory) + - ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory)); -memory_use(#dqstate { operation_mode = disk_only, - file_summary = FileSummary, - sequences = Sequences, - msg_location_dets = MsgLocationDets, - message_cache = Cache, - wordsize = WordSize, - mnesia_bytes_per_record = MnesiaBytesPerRecord, - ets_bytes_per_record = EtsBytesPerRecord }) -> - MnesiaSizeEstimate = - mnesia:table_info(rabbit_disk_queue, size) * MnesiaBytesPerRecord, - MsgLocationSizeEstimate = - dets:info(MsgLocationDets, size) * EtsBytesPerRecord, - (WordSize * (ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory))) + - rabbit_misc:ceil(MnesiaSizeEstimate) + - rabbit_misc:ceil(MsgLocationSizeEstimate). - -to_disk_only_mode(State = #dqstate { operation_mode = disk_only }) -> - State; -to_disk_only_mode(State = #dqstate { operation_mode = ram_disk, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - wordsize = WordSize }) -> - rabbit_log:info("Converting disk queue to disk only mode~n", []), - MnesiaMemoryBytes = WordSize * mnesia:table_info(rabbit_disk_queue, memory), - MnesiaSize = lists:max([1, mnesia:table_info(rabbit_disk_queue, size)]), - EtsMemoryBytes = WordSize * ets:info(MsgLocationEts, memory), - EtsSize = lists:max([1, ets:info(MsgLocationEts, size)]), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_only_copies), - ok = dets:from_ets(MsgLocationDets, MsgLocationEts), - true = ets:delete_all_objects(MsgLocationEts), - garbage_collect(), - State #dqstate { operation_mode = disk_only, - mnesia_bytes_per_record = MnesiaMemoryBytes / MnesiaSize, - ets_bytes_per_record = EtsMemoryBytes / EtsSize }. - -to_ram_disk_mode(State = #dqstate { operation_mode = ram_disk }) -> - State; -to_ram_disk_mode(State = #dqstate { operation_mode = disk_only, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts }) -> - rabbit_log:info("Converting disk queue to ram disk mode~n", []), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_copies), - true = ets:from_dets(MsgLocationEts, MsgLocationDets), - ok = dets:delete_all_objects(MsgLocationDets), - garbage_collect(), - State #dqstate { operation_mode = ram_disk, - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined }. - -noreply(NewState) -> - noreply1(start_memory_timer(NewState)). - -noreply1(NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {noreply, NewState, hibernate}; -noreply1(NewState = #dqstate { commit_timer_ref = undefined }) -> - {noreply, start_commit_timer(NewState), 0}; -noreply1(NewState = #dqstate { on_sync_txns = [] }) -> - {noreply, stop_commit_timer(NewState), hibernate}; -noreply1(NewState) -> - {noreply, NewState, 0}. - -reply(Reply, NewState) -> - reply1(Reply, start_memory_timer(NewState)). - -reply1(Reply, NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {reply, Reply, NewState, hibernate}; -reply1(Reply, NewState = #dqstate { commit_timer_ref = undefined }) -> - {reply, Reply, start_commit_timer(NewState), 0}; -reply1(Reply, NewState = #dqstate { on_sync_txns = [] }) -> - {reply, Reply, stop_commit_timer(NewState), hibernate}; -reply1(Reply, NewState) -> - {reply, Reply, NewState, 0}. - -form_filename(Name) -> - filename:join(base_directory(), Name). - -base_directory() -> - filename:join(mnesia:system_info(directory), "rabbit_disk_queue/"). - -dets_ets_lookup(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - dets:lookup(MsgLocationDets, Key); -dets_ets_lookup(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - ets:lookup(MsgLocationEts, Key). - -dets_ets_delete(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - ok = dets:delete(MsgLocationDets, Key); -dets_ets_delete(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - true = ets:delete(MsgLocationEts, Key), - ok. - -dets_ets_insert(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - ok = dets:insert(MsgLocationDets, Obj); -dets_ets_insert(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert(MsgLocationEts, Obj), - ok. - -dets_ets_insert_new(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - true = dets:insert_new(MsgLocationDets, Obj); -dets_ets_insert_new(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert_new(MsgLocationEts, Obj). - -dets_ets_match_object(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - dets:match_object(MsgLocationDets, Obj); -dets_ets_match_object(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - ets:match_object(MsgLocationEts, Obj). - -get_read_handle(File, Offset, State = - #dqstate { read_file_handles = {ReadHdls, ReadHdlsAge}, - read_file_handles_limit = ReadFileHandlesLimit, - current_file_name = CurName, - current_dirty = IsDirty, - last_sync_offset = SyncOffset - }) -> - State1 = if CurName =:= File andalso IsDirty andalso Offset >= SyncOffset -> - sync_current_file_handle(State); - true -> State - end, - Now = now(), - {FileHdl, ReadHdls1, ReadHdlsAge1} = - case dict:find(File, ReadHdls) of - error -> - {ok, Hdl} = file:open(form_filename(File), - [read, raw, binary, - read_ahead]), - case dict:size(ReadHdls) < ReadFileHandlesLimit of - true -> - {Hdl, ReadHdls, ReadHdlsAge}; - _False -> - {Then, OldFile, ReadHdlsAge2} = - gb_trees:take_smallest(ReadHdlsAge), - {ok, {OldHdl, Then}} = - dict:find(OldFile, ReadHdls), - ok = file:close(OldHdl), - {Hdl, dict:erase(OldFile, ReadHdls), ReadHdlsAge2} - end; - {ok, {Hdl, Then}} -> - {Hdl, ReadHdls, gb_trees:delete(Then, ReadHdlsAge)} - end, - ReadHdls2 = dict:store(File, {FileHdl, Now}, ReadHdls1), - ReadHdlsAge3 = gb_trees:enter(Now, File, ReadHdlsAge1), - {FileHdl, - State1 #dqstate { read_file_handles = {ReadHdls2, ReadHdlsAge3} }}. - -sequence_lookup(Sequences, Q) -> - case ets:lookup(Sequences, Q) of - [] -> - {0, 0}; - [{Q, ReadSeqId, WriteSeqId}] -> - {ReadSeqId, WriteSeqId} - end. - -start_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, filesync, []), - State #dqstate { commit_timer_ref = TRef }. - -stop_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - State; -stop_commit_timer(State = #dqstate { commit_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { commit_timer_ref = undefined }. - -sync_current_file_handle(State = #dqstate { current_dirty = false, - on_sync_txns = [] }) -> - State; -sync_current_file_handle(State = #dqstate { current_file_handle = CurHdl, - current_dirty = IsDirty, - current_offset = CurOffset, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - SyncOffset1 = case IsDirty of - true -> ok = file:sync(CurHdl), - CurOffset; - false -> SyncOffset - end, - State1 = lists:foldl(fun internal_do_tx_commit/2, State, lists:reverse(Txns)), - State1 #dqstate { current_dirty = false, on_sync_txns = [], - last_sync_offset = SyncOffset1 }. - -msg_to_bin(Msg = #basic_message { content = Content }) -> - ClearedContent = rabbit_binary_parser:clear_decoded_content(Content), - term_to_binary(Msg #basic_message { content = ClearedContent }). - -bin_to_msg(MsgBin) -> - binary_to_term(MsgBin). - -remove_cache_entry(MsgId, #dqstate { message_cache = Cache }) -> - true = ets:delete(Cache, MsgId), - ok. - -fetch_and_increment_cache(MsgId, #dqstate { message_cache = Cache }) -> - case ets:lookup(Cache, MsgId) of - [] -> - not_found; - [{MsgId, Message, MsgSize, _RefCount}] -> - NewRefCount = ets:update_counter(Cache, MsgId, {4, 1}), - {Message, MsgSize, NewRefCount} - end. - -decrement_cache(MsgId, #dqstate { message_cache = Cache }) -> - true = try case ets:update_counter(Cache, MsgId, {4, -1}) of - N when N =< 0 -> true = ets:delete(Cache, MsgId); - _N -> true - end - catch error:badarg -> - %% MsgId is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message in mixed queue) - true - end, - ok. - -insert_into_cache(Message = #basic_message { guid = MsgId }, MsgSize, - Forced, State = #dqstate { message_cache = Cache }) -> - case cache_is_full(State) of - true -> ok; - false -> Count = case Forced of - true -> 0; - false -> 1 - end, - true = ets:insert_new(Cache, {MsgId, Message, - MsgSize, Count}), - ok - end. - -cache_is_full(#dqstate { message_cache = Cache }) -> - ets:info(Cache, memory) > ?CACHE_MAX_SIZE. - -%% ---- INTERNAL RAW FUNCTIONS ---- - -internal_deliver(Q, ReadMsg, FakeDeliver, Advance, - State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, empty, State}; - {ReadSeqId, WriteSeqId} when WriteSeqId >= ReadSeqId -> - Remaining = WriteSeqId - ReadSeqId - 1, - {ok, Result, State1} = - internal_read_message( - Q, ReadSeqId, ReadMsg, FakeDeliver, false, State), - true = case Advance of - true -> ets:insert(Sequences, - {Q, ReadSeqId+1, WriteSeqId}); - false -> true - end, - {ok, - case Result of - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}} -> - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}, - Remaining}; - {Message, BodySize, Delivered, {MsgId, ReadSeqId}} -> - {Message, BodySize, Delivered, {MsgId, ReadSeqId}, - Remaining} - end, State1} - end. - -internal_foldl(Q, Fun, Init, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - internal_foldl(Q, WriteSeqId, Fun, State, Init, ReadSeqId). - -internal_foldl(_Q, SeqId, _Fun, State, Acc, SeqId) -> - {ok, Acc, State}; -internal_foldl(Q, WriteSeqId, Fun, State, Acc, ReadSeqId) -> - {ok, MsgStuff, State1} - = internal_read_message(Q, ReadSeqId, true, true, false, State), - Acc1 = Fun(MsgStuff, Acc), - internal_foldl(Q, WriteSeqId, Fun, State1, Acc1, ReadSeqId + 1). - -internal_read_message(Q, ReadSeqId, ReadMsg, FakeDeliver, ForceInCache, State) -> - [Obj = - #dq_msg_loc {is_delivered = Delivered, msg_id = MsgId}] = - mnesia:dirty_read(rabbit_disk_queue, {Q, ReadSeqId}), - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - ok = - if FakeDeliver orelse Delivered -> ok; - true -> - mnesia:dirty_write(rabbit_disk_queue, - Obj #dq_msg_loc {is_delivered = true}) - end, - case ReadMsg of - true -> - case fetch_and_increment_cache(MsgId, State) of - not_found -> - {FileHdl, State1} = get_read_handle(File, Offset, State), - {ok, {MsgBody, IsPersistent, BodySize}} = - read_message_at_offset(FileHdl, Offset, TotalSize), - #basic_message { is_persistent=IsPersistent, guid=MsgId } = - Message = bin_to_msg(MsgBody), - ok = if RefCount > 1 orelse ForceInCache -> - insert_into_cache - (Message, BodySize, ForceInCache, State1); - true -> ok - %% it's not in the cache and we only - %% have 1 queue with the message. So - %% don't bother putting it in the - %% cache. - end, - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State1}; - {Message, BodySize, _RefCount} -> - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State} - end; - false -> - {ok, {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}}, State} - end. - -internal_auto_ack(Q, State) -> - case internal_deliver(Q, false, false, true, State) of - {ok, empty, State1} -> {ok, State1}; - {ok, {_MsgId, _IsPersistent, _Delivered, MsgSeqId, _Remaining}, - State1} -> - remove_messages(Q, [MsgSeqId], true, State1) - end. - -internal_ack(Q, MsgSeqIds, State) -> - remove_messages(Q, MsgSeqIds, true, State). - -%% Q is only needed if MnesiaDelete /= false -remove_messages(Q, MsgSeqIds, MnesiaDelete, - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - Files = - lists:foldl( - fun ({MsgId, SeqId}, Files1) -> - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - Files2 = - case RefCount of - 1 -> - ok = dets_ets_delete(State, MsgId), - ok = remove_cache_entry(MsgId, State), - [{File, ValidTotalSize, ContiguousTop, - Left, Right}] = ets:lookup(FileSummary, File), - ContiguousTop1 = - lists:min([ContiguousTop, Offset]), - true = - ets:insert(FileSummary, - {File, (ValidTotalSize-TotalSize- - ?FILE_PACKING_ADJUSTMENT), - ContiguousTop1, Left, Right}), - if CurName =:= File -> Files1; - true -> sets:add_element(File, Files1) - end; - _ when 1 < RefCount -> - ok = decrement_cache(MsgId, State), - ok = dets_ets_insert( - State, {MsgId, RefCount - 1, File, Offset, - TotalSize, IsPersistent}), - Files1 - end, - ok = case MnesiaDelete of - true -> mnesia:dirty_delete(rabbit_disk_queue, - {Q, SeqId}); - txn -> mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write); - _ -> ok - end, - Files2 - end, sets:new(), MsgSeqIds), - State1 = compact(Files, State), - {ok, State1}. - -internal_tx_publish(Message = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, - State = #dqstate { current_file_handle = CurHdl, - current_file_name = CurName, - current_offset = CurOffset, - file_summary = FileSummary - }) -> - case dets_ets_lookup(State, MsgId) of - [] -> - %% New message, lots to do - {ok, TotalSize} = append_message(CurHdl, MsgId, msg_to_bin(Message), - IsPersistent), - true = dets_ets_insert_new - (State, {MsgId, 1, CurName, - CurOffset, TotalSize, IsPersistent}), - [{CurName, ValidTotalSize, ContiguousTop, Left, undefined}] = - ets:lookup(FileSummary, CurName), - ValidTotalSize1 = ValidTotalSize + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - ContiguousTop1 = if CurOffset =:= ContiguousTop -> - %% can't be any holes in this file - ValidTotalSize1; - true -> ContiguousTop - end, - true = ets:insert(FileSummary, {CurName, ValidTotalSize1, - ContiguousTop1, Left, undefined}), - NextOffset = CurOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - maybe_roll_to_new_file( - NextOffset, State #dqstate {current_offset = NextOffset, - current_dirty = true}); - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] -> - %% We already know about it, just update counter - ok = dets_ets_insert(State, {MsgId, RefCount + 1, File, - Offset, TotalSize, IsPersistent}), - {ok, State} - end. - -internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, - State = #dqstate { current_file_name = CurFile, - current_dirty = IsDirty, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - NeedsSync = IsDirty andalso - lists:any(fun ({MsgId, _Delivered}) -> - [{MsgId, _RefCount, File, Offset, - _TotalSize, _IsPersistent}] = - dets_ets_lookup(State, MsgId), - File =:= CurFile andalso Offset >= SyncOffset - end, PubMsgIds), - TxnDetails = {Q, PubMsgIds, AckSeqIds, From}, - case NeedsSync of - true -> - Txns1 = [TxnDetails | Txns], - State #dqstate { on_sync_txns = Txns1 }; - false -> - internal_do_tx_commit(TxnDetails, State) - end. - -internal_do_tx_commit({Q, PubMsgIds, AckSeqIds, From}, - State = #dqstate { sequences = Sequences }) -> - {InitReadSeqId, InitWriteSeqId} = sequence_lookup(Sequences, Q), - WriteSeqId = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {ok, WriteSeqId1} = - lists:foldl( - fun ({MsgId, Delivered}, {ok, SeqId}) -> - {mnesia:write( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, - msg_id = MsgId, - is_delivered = Delivered - }, write), - SeqId + 1} - end, {ok, InitWriteSeqId}, PubMsgIds), - WriteSeqId1 - end), - {ok, State1} = remove_messages(Q, AckSeqIds, true, State), - true = case PubMsgIds of - [] -> true; - _ -> ets:insert(Sequences, {Q, InitReadSeqId, WriteSeqId}) - end, - gen_server2:reply(From, ok), - State1. - -internal_publish(Q, Message = #basic_message { guid = MsgId }, - IsDelivered, State) -> - {ok, State1 = #dqstate { sequences = Sequences }} = - internal_tx_publish(Message, State), - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - ok = mnesia:dirty_write(rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, WriteSeqId}, - msg_id = MsgId, - is_delivered = IsDelivered}), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId + 1}), - {ok, {MsgId, WriteSeqId}, State1}. - -internal_tx_cancel(MsgIds, State) -> - %% we don't need seq ids because we're not touching mnesia, - %% because seqids were never assigned - MsgSeqIds = lists:zip(MsgIds, lists:duplicate(erlang:length(MsgIds), - undefined)), - remove_messages(undefined, MsgSeqIds, false, State). - -internal_requeue(_Q, [], State) -> - {ok, State}; -internal_requeue(Q, MsgSeqIds, State = #dqstate { sequences = Sequences }) -> - %% We know that every seq_id in here is less than the ReadSeqId - %% you'll get if you look up this queue in Sequences (i.e. they've - %% already been delivered). We also know that the rows for these - %% messages are still in rabbit_disk_queue (i.e. they've not been - %% ack'd). - - %% Now, it would be nice if we could adjust the sequence ids in - %% rabbit_disk_queue (mnesia) to create a contiguous block and - %% then drop the ReadSeqId for the queue by the corresponding - %% amount. However, this is not safe because there may be other - %% sequence ids which have been sent out as part of deliveries - %% which are not being requeued. As such, moving things about in - %% rabbit_disk_queue _under_ the current ReadSeqId would result in - %% such sequence ids referring to the wrong messages. - - %% Therefore, the only solution is to take these messages, and to - %% reenqueue them at the top of the queue. Usefully, this only - %% affects the Sequences and rabbit_disk_queue structures - there - %% is no need to physically move the messages about on disk, so - %% MsgLocation and FileSummary stay put (which makes further sense - %% as they have no concept of sequence id anyway). - - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - {WriteSeqId1, Q, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foldl(fun requeue_message/2, {WriteSeqId, Q, []}, - MsgSeqIds) - end), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId1}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State}. - -requeue_message({{MsgId, SeqId}, IsDelivered}, {WriteSeqId, Q, Acc}) -> - [Obj = #dq_msg_loc { is_delivered = true, msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, SeqId}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeqId}, - is_delivered = IsDelivered - }, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write), - {WriteSeqId + 1, Q, [MsgId | Acc]}. - -%% move the next N messages from the front of the queue to the back. -internal_requeue_next_n(Q, N, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - if N >= (WriteSeqId - ReadSeqId) -> {ok, State}; - true -> - {ReadSeqIdN, WriteSeqIdN, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - requeue_next_messages(Q, N, ReadSeqId, WriteSeqId, []) - end - ), - true = ets:insert(Sequences, {Q, ReadSeqIdN, WriteSeqIdN}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State} - end. - -requeue_next_messages(_Q, 0, ReadSeq, WriteSeq, Acc) -> - {ReadSeq, WriteSeq, Acc}; -requeue_next_messages(Q, N, ReadSeq, WriteSeq, Acc) -> - [Obj = #dq_msg_loc { msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, ReadSeq}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeq}}, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, ReadSeq}, write), - requeue_next_messages(Q, N - 1, ReadSeq + 1, WriteSeq + 1, [MsgId | Acc]). - -internal_purge(Q, State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, 0, State}; - {ReadSeqId, WriteSeqId} -> - {MsgSeqIds, WriteSeqId} = - rabbit_misc:unfold( - fun (SeqId) when SeqId == WriteSeqId -> false; - (SeqId) -> - [#dq_msg_loc { msg_id = MsgId }] = - mnesia:dirty_read(rabbit_disk_queue, {Q, SeqId}), - {true, {MsgId, SeqId}, SeqId + 1} - end, ReadSeqId), - true = ets:insert(Sequences, {Q, WriteSeqId, WriteSeqId}), - {ok, State1} = remove_messages(Q, MsgSeqIds, true, State), - {ok, WriteSeqId - ReadSeqId, State1} - end. - -internal_delete_queue(Q, State) -> - {ok, _Count, State1 = #dqstate { sequences = Sequences }} = - internal_purge(Q, State), %% remove everything undelivered - true = ets:delete(Sequences, Q), - %% now remove everything already delivered - Objs = mnesia:dirty_match_object( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, '_'}, - msg_id = '_', - is_delivered = '_' - }), - MsgSeqIds = - lists:map( - fun (#dq_msg_loc { queue_and_seq_id = {_Q, SeqId}, - msg_id = MsgId }) -> - {MsgId, SeqId} end, Objs), - remove_messages(Q, MsgSeqIds, true, State1). - -internal_delete_non_durable_queues( - DurableQueues, State = #dqstate { sequences = Sequences }) -> - ets:foldl( - fun ({Q, _Read, _Write}, {ok, State1}) -> - case sets:is_element(Q, DurableQueues) of - true -> {ok, State1}; - false -> internal_delete_queue(Q, State1) - end - end, {ok, State}, Sequences). - -%% ---- ROLLING OVER THE APPEND FILE ---- - -maybe_roll_to_new_file(Offset, - State = #dqstate { file_size_limit = FileSizeLimit, - current_file_name = CurName, - current_file_handle = CurHdl, - current_file_num = CurNum, - file_summary = FileSummary - } - ) when Offset >= FileSizeLimit -> - State1 = sync_current_file_handle(State), - ok = file:close(CurHdl), - NextNum = CurNum + 1, - NextName = integer_to_list(NextNum) ++ ?FILE_EXTENSION, - {ok, NextHdl} = file:open(form_filename(NextName), - [write, raw, binary, delayed_write]), - ok = preallocate(NextHdl, FileSizeLimit, 0), - true = ets:update_element(FileSummary, CurName, {5, NextName}),%% 5 is Right - true = ets:insert_new(FileSummary, {NextName, 0, 0, CurName, undefined}), - State2 = State1 #dqstate { current_file_name = NextName, - current_file_handle = NextHdl, - current_file_num = NextNum, - current_offset = 0, - last_sync_offset = 0 - }, - {ok, compact(sets:from_list([CurName]), State2)}; -maybe_roll_to_new_file(_, State) -> - {ok, State}. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file:position(Hdl, {bof, FileSizeLimit}), - ok = file:truncate(Hdl), - {ok, FinalPos} = file:position(Hdl, {bof, FinalPos}), - ok. - -%% ---- GARBAGE COLLECTION / COMPACTION / AGGREGATION ---- - -compact(FilesSet, State) -> - %% smallest number, hence eldest, hence left-most, first - Files = lists:sort(sets:to_list(FilesSet)), - %% foldl reverses, so now youngest/right-most first - RemainingFiles = lists:foldl(fun (File, Acc) -> - delete_empty_files(File, Acc, State) - end, [], Files), - lists:foldl(fun combine_file/2, State, lists:reverse(RemainingFiles)). - -combine_file(File, State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - %% the file we're looking at may no longer exist as it may have - %% been deleted within the current GC run - case ets:lookup(FileSummary, File) of - [] -> State; - [FileObj = {File, _ValidData, _ContiguousTop, Left, Right}] -> - GoRight = - fun() -> - case Right of - undefined -> State; - _ when not (CurName == Right) -> - [RightObj] = ets:lookup(FileSummary, Right), - {_, State1} = - adjust_meta_and_combine(FileObj, RightObj, - State), - State1; - _ -> State - end - end, - case Left of - undefined -> - GoRight(); - _ -> [LeftObj] = ets:lookup(FileSummary, Left), - case adjust_meta_and_combine(LeftObj, FileObj, State) of - {true, State1} -> State1; - {false, State} -> GoRight() - end - end - end. - -adjust_meta_and_combine( - LeftObj = {LeftFile, LeftValidData, _LeftContigTop, LeftLeft, RightFile}, - RightObj = {RightFile, RightValidData, _RightContigTop, LeftFile, RightRight}, - State = #dqstate { file_size_limit = FileSizeLimit, - file_summary = FileSummary - }) -> - TotalValidData = LeftValidData + RightValidData, - if FileSizeLimit >= TotalValidData -> - State1 = combine_files(RightObj, LeftObj, State), - %% this could fail if RightRight is undefined - %% left is the 4th field - ets:update_element(FileSummary, RightRight, {4, LeftFile}), - true = ets:insert(FileSummary, {LeftFile, - TotalValidData, TotalValidData, - LeftLeft, - RightRight}), - true = ets:delete(FileSummary, RightFile), - {true, State1}; - true -> {false, State} - end. - -sort_msg_locations_by_offset(Asc, List) -> - Comp = case Asc of - true -> fun erlang:'<'/2; - false -> fun erlang:'>'/2 - end, - lists:sort(fun ({_, _, _, OffA, _, _}, {_, _, _, OffB, _, _}) -> - Comp(OffA, OffB) - end, List). - -truncate_and_extend_file(FileHdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file:position(FileHdl, {bof, Lowpoint}), - ok = file:truncate(FileHdl), - ok = preallocate(FileHdl, Highpoint, Lowpoint). - -combine_files({Source, SourceValid, _SourceContiguousTop, - _SourceLeft, _SourceRight}, - {Destination, DestinationValid, DestinationContiguousTop, - _DestinationLeft, _DestinationRight}, - State1) -> - State = close_file(Source, close_file(Destination, State1)), - {ok, SourceHdl} = - file:open(form_filename(Source), - [read, write, raw, binary, read_ahead, delayed_write]), - {ok, DestinationHdl} = - file:open(form_filename(Destination), - [read, write, raw, binary, read_ahead, delayed_write]), - ExpectedSize = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - if DestinationContiguousTop =:= DestinationValid -> - ok = truncate_and_extend_file(DestinationHdl, - DestinationValid, ExpectedSize); - true -> - Tmp = filename:rootname(Destination) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = - file:open(form_filename(Tmp), - [read, write, raw, binary, - read_ahead, delayed_write]), - Worklist = - lists:dropwhile( - fun ({_, _, _, Offset, _, _}) - when Offset /= DestinationContiguousTop -> - %% it cannot be that Offset == - %% DestinationContiguousTop because if it - %% was then DestinationContiguousTop would - %% have been extended by TotalSize - Offset < DestinationContiguousTop - %% Given expected access patterns, I suspect - %% that the list should be naturally sorted - %% as we require, however, we need to - %% enforce it anyway - end, sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Destination, - '_', '_', '_'}))), - ok = copy_messages( - Worklist, DestinationContiguousTop, DestinationValid, - DestinationHdl, TmpHdl, Destination, State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage from - %% Destination, and MsgLocationDets has been updated to - %% reflect compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file:position(TmpHdl, {bof, 0}), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, ExpectedSize), - {ok, TmpSize} = file:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file:sync(DestinationHdl), - ok = file:close(TmpHdl), - ok = file:delete(form_filename(Tmp)) - end, - SourceWorkList = - sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Source, - '_', '_', '_'})), - ok = copy_messages(SourceWorkList, DestinationValid, ExpectedSize, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file:sync(DestinationHdl), - ok = file:close(SourceHdl), - ok = file:close(DestinationHdl), - ok = file:delete(form_filename(Source)), - State. - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, State) -> - {FinalOffset, BlockStart1, BlockEnd1} = - lists:foldl( - fun ({MsgId, RefCount, _Source, Offset, TotalSize, IsPersistent}, - {CurOffset, BlockStart, BlockEnd}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - Size = TotalSize + ?FILE_PACKING_ADJUSTMENT, - %% update MsgLocationDets to reflect change of file and offset - ok = dets_ets_insert - (State, {MsgId, RefCount, Destination, - CurOffset, TotalSize, IsPersistent}), - NextOffset = CurOffset + Size, - if BlockStart =:= undefined -> - %% base case, called only for the first list elem - {NextOffset, Offset, Offset + Size}; - Offset =:= BlockEnd -> - %% extend the current block because the next - %% msg follows straight on - {NextOffset, BlockStart, BlockEnd + Size}; - true -> - %% found a gap, so actually do the work for - %% the previous block - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file:position(SourceHdl, {bof, BlockStart}), - {ok, BSize} = - file:copy(SourceHdl, DestinationHdl, BSize), - {NextOffset, Offset, Offset + Size} - end - end, {InitOffset, undefined, undefined}, WorkList), - %% do the last remaining block - BSize1 = BlockEnd1 - BlockStart1, - {ok, BlockStart1} = file:position(SourceHdl, {bof, BlockStart1}), - {ok, BSize1} = file:copy(SourceHdl, DestinationHdl, BSize1), - ok. - -close_file(File, State = #dqstate { read_file_handles = - {ReadHdls, ReadHdlsAge} }) -> - case dict:find(File, ReadHdls) of - error -> - State; - {ok, {Hdl, Then}} -> - ok = file:close(Hdl), - State #dqstate { read_file_handles = - { dict:erase(File, ReadHdls), - gb_trees:delete(Then, ReadHdlsAge) } } - end. - -delete_empty_files(File, Acc, #dqstate { file_summary = FileSummary }) -> - [{File, ValidData, _ContiguousTop, Left, Right}] = - ets:lookup(FileSummary, File), - case ValidData of - %% we should NEVER find the current file in here hence right - %% should always be a file, not undefined - 0 -> - case {Left, Right} of - {undefined, _} when not (is_atom(Right)) -> - %% the eldest file is empty. YAY! - %% left is the 4th field - true = - ets:update_element(FileSummary, Right, {4, undefined}); - {_, _} when not (is_atom(Right)) -> - %% left is the 4th field - true = ets:update_element(FileSummary, Right, {4, Left}), - %% right is the 5th field - true = ets:update_element(FileSummary, Left, {5, Right}) - end, - true = ets:delete(FileSummary, File), - ok = file:delete(form_filename(File)), - Acc; - _ -> [File|Acc] - end. - -%% ---- DISK RECOVERY ---- - -add_index() -> - case mnesia:add_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - {aborted,{already_exists,rabbit_disk_queue,_}} -> ok; - E -> E - end. - -del_index() -> - case mnesia:del_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - %% hmm, something weird must be going on, but it's probably - %% not the end of the world - {aborted, {no_exists, rabbit_disk_queue,_}} -> ok; - E1 -> E1 - end. - -load_from_disk(State) -> - %% sorted so that smallest number is first. which also means - %% eldest file (left-most) first - ok = add_index(), - {Files, TmpFiles} = get_disk_queue_files(), - ok = recover_crashed_compactions(Files, TmpFiles), - %% There should be no more tmp files now, so go ahead and load the - %% whole lot - State1 = load_messages(undefined, Files, State), - %% Finally, check there is nothing in mnesia which we haven't - %% loaded - State2 = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {State6, FinalQ, MsgSeqIds2, _Len} = - mnesia:foldl( - fun (#dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = {Q, SeqId} }, - {State3, OldQ, MsgSeqIds, Len}) -> - {State4, MsgSeqIds1, Len1} = - case {OldQ == Q, MsgSeqIds} of - {true, _} when Len < ?BATCH_SIZE -> - {State3, MsgSeqIds, Len}; - {false, []} -> {State3, MsgSeqIds, Len}; - {_, _} -> - {ok, State5} = - remove_messages(Q, MsgSeqIds, - txn, State3), - {State5, [], 0} - end, - case dets_ets_lookup(State4, MsgId) of - [] -> ok = mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write), - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, true}] -> - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, false}] -> - {State4, Q, - [{MsgId, SeqId} | MsgSeqIds1], Len1+1} - end - end, {State1, undefined, [], 0}, rabbit_disk_queue), - {ok, State7} = - remove_messages(FinalQ, MsgSeqIds2, txn, State6), - State7 - end), - State8 = extract_sequence_numbers(State2), - ok = del_index(), - {ok, State8}. - -extract_sequence_numbers(State = #dqstate { sequences = Sequences }) -> - true = rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:read_lock_table(rabbit_disk_queue), - mnesia:foldl( - fun (#dq_msg_loc { queue_and_seq_id = {Q, SeqId} }, true) -> - NextWrite = SeqId + 1, - case ets:lookup(Sequences, Q) of - [] -> ets:insert_new(Sequences, - {Q, SeqId, NextWrite}); - [Orig = {Q, Read, Write}] -> - Repl = {Q, lists:min([Read, SeqId]), - lists:max([Write, NextWrite])}, - case Orig == Repl of - true -> true; - false -> ets:insert(Sequences, Repl) - end - end - end, true, rabbit_disk_queue) - end), - ok = remove_gaps_in_sequences(State), - State. - -remove_gaps_in_sequences(#dqstate { sequences = Sequences }) -> - %% read the comments at internal_requeue. - - %% Because we are at startup, we know that no sequence ids have - %% been issued (or at least, they were, but have been - %% forgotten). Therefore, we can nicely shuffle up and not - %% worry. Note that I'm choosing to shuffle up, but alternatively - %% we could shuffle downwards. However, I think there's greater - %% likelihood of gaps being at the bottom rather than the top of - %% the queue, so shuffling up should be the better bet. - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foreach( - fun ({Q, ReadSeqId, WriteSeqId}) -> - Gap = shuffle_up(Q, ReadSeqId-1, WriteSeqId-1, 0), - ReadSeqId1 = ReadSeqId + Gap, - true = ets:insert(Sequences, - {Q, ReadSeqId1, WriteSeqId}) - end, ets:match_object(Sequences, '_')) - end), - ok. - -shuffle_up(_Q, SeqId, SeqId, Gap) -> - Gap; -shuffle_up(Q, BaseSeqId, SeqId, Gap) -> - GapInc = - case mnesia:read(rabbit_disk_queue, {Q, SeqId}, write) of - [] -> 1; - [Obj] -> - case Gap of - 0 -> ok; - _ -> mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc { - queue_and_seq_id = {Q, SeqId + Gap }}, - write), - mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write) - end, - 0 - end, - shuffle_up(Q, BaseSeqId, SeqId - 1, Gap + GapInc). - -load_messages(undefined, [], - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName }) -> - true = ets:insert_new(FileSummary, {CurName, 0, 0, undefined, undefined}), - State; -load_messages(Left, [], State) -> - Num = list_to_integer(filename:rootname(Left)), - Offset = - case dets_ets_match_object(State, {'_', '_', Left, '_', '_', '_'}) of - [] -> 0; - L -> - [ {_MsgId, _RefCount, Left, MaxOffset, TotalSize, _IsPersistent} - | _ ] = sort_msg_locations_by_offset(false, L), - MaxOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT - end, - State #dqstate { current_file_num = Num, current_file_name = Left, - current_offset = Offset }; -load_messages(Left, [File|Files], - State = #dqstate { file_summary = FileSummary }) -> - %% [{MsgId, TotalSize, FileOffset}] - {ok, Messages} = scan_file_for_valid_messages(form_filename(File)), - {ValidMessagesRev, ValidTotalSize} = lists:foldl( - fun (Obj = {MsgId, IsPersistent, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) of - 0 -> {VMAcc, VTSAcc}; - RefCount -> - true = dets_ets_insert_new - (State, {MsgId, RefCount, File, - Offset, TotalSize, IsPersistent}), - {[Obj | VMAcc], - VTSAcc + TotalSize + ?FILE_PACKING_ADJUSTMENT - } - end - end, {[], 0}, Messages), - %% foldl reverses lists and find_contiguous_block_prefix needs - %% elems in the same order as from scan_file_for_valid_messages - {ContiguousTop, _} = find_contiguous_block_prefix( - lists:reverse(ValidMessagesRev)), - Right = case Files of - [] -> undefined; - [F|_] -> F - end, - true = ets:insert_new(FileSummary, - {File, ValidTotalSize, ContiguousTop, Left, Right}), - load_messages(File, Files, State). - -%% ---- DISK RECOVERY OF FAILED COMPACTION ---- - -recover_crashed_compactions(Files, TmpFiles) -> - lists:foreach(fun (TmpFile) -> - ok = recover_crashed_compactions1(Files, TmpFile) end, - TmpFiles), - ok. - -verify_messages_in_mnesia(MsgIds) -> - lists:foreach( - fun (MsgId) -> - true = 0 < erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) - end, MsgIds). - -grab_msg_id({MsgId, _IsPersistent, _TotalSize, _FileOffset}) -> - MsgId. - -recover_crashed_compactions1(Files, TmpFile) -> - NonTmpRelatedFile = filename:rootname(TmpFile) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFile, Files), - %% [{MsgId, TotalSize, FileOffset}] - {ok, UncorruptedMessagesTmp} = - scan_file_for_valid_messages(form_filename(TmpFile)), - MsgIdsTmp = lists:map(fun grab_msg_id/1, UncorruptedMessagesTmp), - %% all of these messages should appear in the mnesia table, - %% otherwise they wouldn't have been copied out - verify_messages_in_mnesia(MsgIdsTmp), - {ok, UncorruptedMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIds = lists:map(fun grab_msg_id/1, UncorruptedMessages), - %% 1) It's possible that everything in the tmp file is also in the - %% main file such that the main file is (prefix ++ - %% tmpfile). This means that compaction failed immediately - %% prior to the final step of deleting the tmp file. Plan: just - %% delete the tmp file - %% 2) It's possible that everything in the tmp file is also in the - %% main file but with holes throughout (or just somthing like - %% main = (prefix ++ hole ++ tmpfile)). This means that - %% compaction wrote out the tmp file successfully and then - %% failed. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 3) It's possible that everything in the tmp file is also in the - %% main file but such that the main file does not end with tmp - %% file (and there are valid messages in the suffix; main = - %% (prefix ++ tmpfile[with extra holes?] ++ suffix)). This - %% means that compaction failed as we were writing out the tmp - %% file. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 4) It's possible that there are messages in the tmp file which - %% are not in the main file. This means that writing out the - %% tmp file succeeded, but then we failed as we were copying - %% them back over to the main file, after truncating the main - %% file. As the main file has already been truncated, it should - %% consist only of valid messages. Plan: Truncate the main file - %% back to before any of the files in the tmp file and copy - %% them over again - case lists:all(fun (MsgId) -> lists:member(MsgId, MsgIds) end, MsgIdsTmp) of - true -> %% we're in case 1, 2 or 3 above. Just delete the tmp file - %% note this also catches the case when the tmp file - %% is empty - ok = file:delete(TmpFile); - _False -> - %% we're in case 4 above. Check that everything in the - %% main file is a valid message in mnesia - verify_messages_in_mnesia(MsgIds), - %% The main file should be contiguous - {Top, MsgIds} = find_contiguous_block_prefix(UncorruptedMessages), - %% we should have that none of the messages in the prefix - %% are in the tmp file - true = lists:all(fun (MsgId) -> - not (lists:member(MsgId, MsgIdsTmp)) - end, MsgIds), - {ok, MainHdl} = file:open(form_filename(NonTmpRelatedFile), - [write, raw, binary, delayed_write]), - {ok, Top} = file:position(MainHdl, Top), - %% wipe out any rubbish at the end of the file - ok = file:truncate(MainHdl), - %% there really could be rubbish at the end of the file - - %% we could have failed after the extending truncate. - %% Remember the head of the list will be the highest entry - %% in the file - [{_, _, TmpTopTotalSize, TmpTopOffset}|_] = UncorruptedMessagesTmp, - TmpSize = TmpTopOffset + TmpTopTotalSize + ?FILE_PACKING_ADJUSTMENT, - ExpectedAbsPos = Top + TmpSize, - {ok, ExpectedAbsPos} = file:position(MainHdl, {cur, TmpSize}), - %% and now extend the main file as big as necessary in a - %% single move if we run out of disk space, this truncate - %% could fail, but we still aren't risking losing data - ok = file:truncate(MainHdl), - {ok, TmpHdl} = file:open(form_filename(TmpFile), - [read, raw, binary, read_ahead]), - {ok, TmpSize} = file:copy(TmpHdl, MainHdl, TmpSize), - ok = file:close(MainHdl), - ok = file:close(TmpHdl), - ok = file:delete(TmpFile), - - {ok, MainMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIdsMain = lists:map(fun grab_msg_id/1, MainMessages), - %% check that everything in MsgIds is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIds), - %% check that everything in MsgIdsTmp is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIdsTmp) - end, - ok. - -%% this assumes that the messages are ordered such that the highest -%% address is at the head of the list. This matches what -%% scan_file_for_valid_messages produces -find_contiguous_block_prefix([]) -> {0, []}; -find_contiguous_block_prefix([ {MsgId, _IsPersistent, TotalSize, Offset} - | Tail]) -> - case find_contiguous_block_prefix(Tail, Offset, [MsgId]) of - {ok, Acc} -> {Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - lists:reverse(Acc)}; - Res -> Res - end. -find_contiguous_block_prefix([], 0, Acc) -> - {ok, Acc}; -find_contiguous_block_prefix([], _N, _Acc) -> - {0, []}; -find_contiguous_block_prefix([{MsgId, _IsPersistent, TotalSize, Offset} | Tail], - ExpectedOffset, Acc) - when ExpectedOffset =:= Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT -> - find_contiguous_block_prefix(Tail, Offset, [MsgId|Acc]); -find_contiguous_block_prefix(List, _ExpectedOffset, _Acc) -> - find_contiguous_block_prefix(List). - -file_name_sort(A, B) -> - ANum = list_to_integer(filename:rootname(A)), - BNum = list_to_integer(filename:rootname(B)), - ANum < BNum. - -get_disk_queue_files() -> - DQFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION, base_directory()), - DQFilesSorted = lists:sort(fun file_name_sort/2, DQFiles), - DQTFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION_TMP, base_directory()), - DQTFilesSorted = lists:sort(fun file_name_sort/2, DQTFiles), - {DQFilesSorted, DQTFilesSorted}. - -%% ---- RAW READING AND WRITING OF FILES ---- - -append_message(FileHdl, MsgId, MsgBody, IsPersistent) when is_binary(MsgBody) -> - BodySize = size(MsgBody), - MsgIdBin = term_to_binary(MsgId), - MsgIdBinSize = size(MsgIdBin), - TotalSize = BodySize + MsgIdBinSize, - StopByte = case IsPersistent of - true -> ?WRITE_OK_PERSISTENT; - false -> ?WRITE_OK_TRANSIENT - end, - case file:write(FileHdl, <>) of - ok -> {ok, TotalSize}; - KO -> KO - end. - -read_message_at_offset(FileHdl, Offset, TotalSize) -> - TotalSizeWriteOkBytes = TotalSize + 1, - case file:position(FileHdl, {bof, Offset}) of - {ok, Offset} -> - case file:read(FileHdl, TotalSize + ?FILE_PACKING_ADJUSTMENT) of - {ok, <>} -> - BodySize = TotalSize - MsgIdBinSize, - case Rest of - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_TRANSIENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, false, BodySize}}; - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_PERSISTENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, true, BodySize}} - end; - KO -> KO - end; - KO -> KO - end. - -scan_file_for_valid_messages(File) -> - {ok, Hdl} = file:open(File, [raw, binary, read]), - Valid = scan_file_for_valid_messages(Hdl, 0, []), - %% if something really bad's happened, the close could fail, but ignore - file:close(Hdl), - Valid. - -scan_file_for_valid_messages(FileHdl, Offset, Acc) -> - case read_next_file_entry(FileHdl, Offset) of - {ok, eof} -> {ok, Acc}; - {ok, {corrupted, NextOffset}} -> - scan_file_for_valid_messages(FileHdl, NextOffset, Acc); - {ok, {ok, MsgId, IsPersistent, TotalSize, NextOffset}} -> - scan_file_for_valid_messages( - FileHdl, NextOffset, - [{MsgId, IsPersistent, TotalSize, Offset} | Acc]); - _KO -> - %% bad message, but we may still have recovered some valid messages - {ok, Acc} - end. - -read_next_file_entry(FileHdl, Offset) -> - TwoIntegers = 2 * ?INTEGER_SIZE_BYTES, - case file:read(FileHdl, TwoIntegers) of - {ok, - <>} -> - case {TotalSize =:= 0, MsgIdBinSize =:= 0} of - {true, _} -> {ok, eof}; %% Nothing we can do other than stop - {false, true} -> - %% current message corrupted, try skipping past it - ExpectedAbsPos = - Offset + ?FILE_PACKING_ADJUSTMENT + TotalSize, - case file:position(FileHdl, {cur, TotalSize + 1}) of - {ok, ExpectedAbsPos} -> - {ok, {corrupted, ExpectedAbsPos}}; - {ok, _SomeOtherPos} -> - {ok, eof}; %% seek failed, so give up - KO -> KO - end; - {false, false} -> %% all good, let's continue - case file:read(FileHdl, MsgIdBinSize) of - {ok, <>} -> - ExpectedAbsPos = Offset + TwoIntegers + TotalSize, - case file:position(FileHdl, - {cur, TotalSize - MsgIdBinSize} - ) of - {ok, ExpectedAbsPos} -> - NextOffset = Offset + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - case file:read(FileHdl, 1) of - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - false, TotalSize, NextOffset}}; - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - true, TotalSize, NextOffset}}; - {ok, _SomeOtherData} -> - {ok, {corrupted, NextOffset}}; - KO -> KO - end; - {ok, _SomeOtherPos} -> - %% seek failed, so give up - {ok, eof}; - KO -> KO - end; - eof -> {ok, eof}; - KO -> KO - end - end; - eof -> {ok, eof}; - KO -> KO - end. diff --git a/src/rabbit_memsup.erl b/src/rabbit_memsup.erl deleted file mode 100644 index 5f242881..00000000 --- a/src/rabbit_memsup.erl +++ /dev/null @@ -1,126 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0]). - --record(state, {memory_fraction, - timeout, - timer, - mod, - mod_state - }). - --define(SERVER, memsup). %% must be the same as the standard memsup - --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (atom()) -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(update/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -update() -> - gen_server:cast(?SERVER, update). - -%%---------------------------------------------------------------------------- - -init([Mod]) -> - Fraction = os_mon:get_env(memsup, system_memory_high_watermark), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - InitState = Mod:init(), - State = #state { memory_fraction = Fraction, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - mod = Mod, - mod_state = Mod:update(Fraction, InitState) }, - {ok, State}. - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% Export the same API as the real memsup. Note that -%% get_sysmem_high_watermark gives an int in the range 0 - 100, while -%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. -handle_call(get_sysmem_high_watermark, _From, State) -> - {reply, trunc(100 * State#state.memory_fraction), State}; - -handle_call({set_sysmem_high_watermark, Float}, _From, State) -> - {reply, ok, State#state{memory_fraction = Float}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_data, _From, - State = #state { mod = Mod, mod_state = ModState }) -> - {reply, Mod:get_memory_data(ModState), State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State = #state { memory_fraction = MemoryFraction, - mod = Mod, mod_state = ModState }) -> - ModState1 = Mod:update(MemoryFraction, ModState), - {noreply, State #state { mod_state = ModState1 }}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_memsup_darwin.erl b/src/rabbit_memsup_darwin.erl deleted file mode 100644 index 990c5b99..00000000 --- a/src/rabbit_memsup_darwin.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup_darwin). - --export([init/0, update/2, get_memory_data/1]). - --record(state, {alarmed, - total_memory, - allocated_memory}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). - --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). - --endif. - -%%---------------------------------------------------------------------------- - -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. - -update(MemoryFraction, State = #state{ alarmed = Alarmed }) -> - File = os:cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), - PageSize = dict:fetch(page_size, Dict), - Inactive = dict:fetch('Pages inactive', Dict), - Active = dict:fetch('Pages active', Dict), - Free = dict:fetch('Pages free', Dict), - Wired = dict:fetch('Pages wired down', Dict), - MemTotal = PageSize * (Inactive + Active + Free + Wired), - MemUsed = PageSize * (Active + Wired), - NewAlarmed = MemUsed / MemTotal > MemoryFraction, - case {Alarmed, NewAlarmed} of - {false, true} -> - alarm_handler:set_alarm({system_memory_high_watermark, []}); - {true, false} -> - alarm_handler:clear_alarm(system_memory_high_watermark); - _ -> - ok - end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. - -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. - -%%---------------------------------------------------------------------------- - -%% A line looks like "Foo bar: 123456." -parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. diff --git a/src/rabbit_memsup_linux.erl b/src/rabbit_memsup_linux.erl index 460fd88f..ffdc7e99 100644 --- a/src/rabbit_memsup_linux.erl +++ b/src/rabbit_memsup_linux.erl @@ -31,36 +31,74 @@ -module(rabbit_memsup_linux). --export([init/0, update/2, get_memory_data/1]). +-behaviour(gen_server). --record(state, {alarmed, - total_memory, - allocated_memory}). +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([update/0]). + +-define(SERVER, memsup). %% must be the same as the standard memsup + +-define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). + +-record(state, {memory_fraction, alarmed, timeout, timer}). %%---------------------------------------------------------------------------- -ifdef(use_specs). --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(update/0 :: () -> 'ok'). + +-endif. --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). +%%---------------------------------------------------------------------------- --endif. +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + + +update() -> + gen_server:cast(?SERVER, update). %%---------------------------------------------------------------------------- -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. +init(_Args) -> + Fraction = os_mon:get_env(memsup, system_memory_high_watermark), + TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), + {ok, #state{alarmed = false, + memory_fraction = Fraction, + timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, + timer = TRef}}. -update(MemoryFraction, State = #state { alarmed = Alarmed }) -> +start_timer(Timeout) -> + {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), + TRef. + +%% Export the same API as the real memsup. Note that +%% get_sysmem_high_watermark gives an int in the range 0 - 100, while +%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. +handle_call(get_sysmem_high_watermark, _From, State) -> + {reply, trunc(100 * State#state.memory_fraction), State}; + +handle_call({set_sysmem_high_watermark, Float}, _From, State) -> + {reply, ok, State#state{memory_fraction = Float}}; + +handle_call(get_check_interval, _From, State) -> + {reply, State#state.timeout, State}; + +handle_call({set_check_interval, Timeout}, _From, State) -> + {ok, cancel} = timer:cancel(State#state.timer), + {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; + +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast(update, State = #state{alarmed = Alarmed, + memory_fraction = MemoryFraction}) -> File = read_proc_file("/proc/meminfo"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), @@ -78,11 +116,19 @@ update(MemoryFraction, State = #state { alarmed = Alarmed }) -> _ -> ok end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. + {noreply, State#state{alarmed = NewAlarmed}}; + +handle_cast(_Request, State) -> + {noreply, State}. + +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok. -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. +code_change(_OldVsn, State, _Extra) -> + {ok, State}. %%---------------------------------------------------------------------------- @@ -106,10 +152,5 @@ read_proc_file(IoDevice, Acc) -> %% A line looks like "FooBar: 123456 kB" parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. + [Name, Value | _] = string:tokens(Line, ": "), + {list_to_atom(Name), list_to_integer(Value)}. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index c328c111..abf4c7cc 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -53,7 +53,6 @@ -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, keygets/2]). -import(mnesia). -import(lists). @@ -117,11 +116,7 @@ -spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). -spec(start_applications/1 :: ([atom()]) -> 'ok'). -spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> number()). --spec(keygets/2 :: ([({K, V} | {K, non_neg_integer(), V})], [any()]) -> - [({K, V} | any())]). - + -endif. %%---------------------------------------------------------------------------- @@ -365,8 +360,7 @@ dirty_foreach_key1(F, TableName, K) -> end. dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, - {file, FileName}]), + {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, {file, FileName}]), dirty_dump_log1(LH, disk_log:chunk(LH, start)), disk_log:close(LH). @@ -450,33 +444,3 @@ stop_applications(Apps) -> cannot_stop_application, Apps). -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N - T of - 0 -> N; - _ -> 1 + T - end. - -keygets(Keys, KeyList) -> - lists:reverse( - lists:foldl( - fun({Key, Pos, Default}, Acc) -> - case lists:keysearch(Key, Pos, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end; - ({Key, Default}, Acc) -> - case lists:keysearch(Key, 1, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end - end, [], Keys)). diff --git a/src/rabbit_mixed_queue.erl b/src/rabbit_mixed_queue.erl deleted file mode 100644 index 4b0810a8..00000000 --- a/src/rabbit_mixed_queue.erl +++ /dev/null @@ -1,596 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_mixed_queue). - --include("rabbit.hrl"). - --export([init/2]). - --export([publish/2, publish_delivered/2, deliver/1, ack/2, - tx_publish/2, tx_commit/3, tx_cancel/2, requeue/2, purge/1, - length/1, is_empty/1, delete_queue/1, maybe_prefetch/1]). - --export([to_disk_only_mode/2, to_mixed_mode/2, info/1, - estimate_queue_memory_and_reset_counters/1]). - --record(mqstate, { mode, - msg_buf, - queue, - is_durable, - length, - memory_size, - memory_gain, - memory_loss, - prefetcher - } - ). - --define(TO_DISK_MAX_FLUSH_SIZE, 100000). - --ifdef(use_specs). - --type(mode() :: ( 'disk' | 'mixed' )). --type(mqstate() :: #mqstate { mode :: mode(), - msg_buf :: queue(), - queue :: queue_name(), - is_durable :: bool(), - length :: non_neg_integer(), - memory_size :: (non_neg_integer() | 'undefined'), - memory_gain :: (non_neg_integer() | 'undefined'), - memory_loss :: (non_neg_integer() | 'undefined'), - prefetcher :: (pid() | 'undefined') - }). --type(acktag() :: ( 'noack' | { non_neg_integer(), non_neg_integer() })). --type(okmqs() :: {'ok', mqstate()}). - --spec(init/2 :: (queue_name(), bool()) -> okmqs()). --spec(publish/2 :: (message(), mqstate()) -> okmqs()). --spec(publish_delivered/2 :: (message(), mqstate()) -> - {'ok', acktag(), mqstate()}). --spec(deliver/1 :: (mqstate()) -> - {('empty' | {message(), bool(), acktag(), non_neg_integer()}), - mqstate()}). --spec(ack/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(tx_publish/2 :: (message(), mqstate()) -> okmqs()). --spec(tx_commit/3 :: ([message()], [acktag()], mqstate()) -> okmqs()). --spec(tx_cancel/2 :: ([message()], mqstate()) -> okmqs()). --spec(requeue/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(purge/1 :: (mqstate()) -> okmqs()). - --spec(delete_queue/1 :: (mqstate()) -> {'ok', mqstate()}). - --spec(length/1 :: (mqstate()) -> non_neg_integer()). --spec(is_empty/1 :: (mqstate()) -> bool()). - --spec(to_disk_only_mode/2 :: ([message()], mqstate()) -> okmqs()). --spec(to_mixed_mode/2 :: ([message()], mqstate()) -> okmqs()). - --spec(estimate_queue_memory_and_reset_counters/1 :: (mqstate()) -> - {mqstate(), non_neg_integer(), non_neg_integer(), - non_neg_integer()}). --spec(info/1 :: (mqstate()) -> mode()). - --endif. - -init(Queue, IsDurable) -> - Len = rabbit_disk_queue:length(Queue), - MsgBuf = inc_queue_length(Queue, queue:new(), Len), - Size = rabbit_disk_queue:foldl( - fun ({Msg = #basic_message { is_persistent = true }, - _Size, _IsDelivered, _AckTag}, Acc) -> - Acc + size_of_message(Msg) - end, 0, Queue), - {ok, #mqstate { mode = disk, msg_buf = MsgBuf, queue = Queue, - is_durable = IsDurable, length = Len, - memory_size = Size, memory_gain = undefined, - memory_loss = undefined, prefetcher = undefined }}. - -size_of_message( - #basic_message { content = #content { payload_fragments_rev = Payload }}) -> - lists:foldl(fun (Frag, SumAcc) -> - SumAcc + size(Frag) - end, 0, Payload). - -to_disk_only_mode(_TxnMessages, State = #mqstate { mode = disk }) -> - {ok, State}; -to_disk_only_mode(TxnMessages, State = - #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, prefetcher = Prefetcher - }) -> - rabbit_log:info("Converting queue to disk only mode: ~p~n", [Q]), - State1 = State #mqstate { mode = disk }, - {MsgBuf1, State2} = - case Prefetcher of - undefined -> {MsgBuf, State1}; - _ -> - case rabbit_queue_prefetcher:drain_and_stop(Prefetcher) of - empty -> {MsgBuf, State1}; - {Fetched, Len} -> - State3 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State1), - {queue:join(Fetched, MsgBuf2), State3} - end - end, - %% We enqueue _everything_ here. This means that should a message - %% already be in the disk queue we must remove it and add it back - %% in. Fortunately, by using requeue, we avoid rewriting the - %% message on disk. - %% Note we also batch together messages on disk so that we minimise - %% the calls to requeue. - {ok, MsgBuf3} = - send_messages_to_disk(IsDurable, Q, MsgBuf1, 0, 0, [], queue:new()), - %% tx_publish txn messages. Some of these will have been already - %% published if they really are durable and persistent which is - %% why we can't just use our own tx_publish/2 function (would end - %% up publishing twice, so refcount would go wrong in disk_queue). - lists:foreach( - fun (Msg = #basic_message { is_persistent = IsPersistent }) -> - ok = case IsDurable andalso IsPersistent of - true -> ok; - _ -> rabbit_disk_queue:tx_publish(Msg) - end - end, TxnMessages), - garbage_collect(), - {ok, State2 #mqstate { msg_buf = MsgBuf3, prefetcher = undefined }}. - -send_messages_to_disk(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf) -> - case queue:out(Queue) of - {empty, _Queue} -> - ok = flush_messages_to_disk_queue(Q, Commit), - [] = flush_requeue_to_disk_queue(Q, RequeueCount, []), - {ok, MsgBuf}; - {{value, {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered}}, Queue1} -> - case IsDurable andalso IsPersistent of - true -> %% it's already in the Q - send_messages_to_disk( - IsDurable, Q, Queue1, PublishCount, RequeueCount + 1, - Commit, inc_queue_length(Q, MsgBuf, 1)); - false -> - republish_message_to_disk_queue( - IsDurable, Q, Queue1, PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered) - end; - {{value, {Msg, IsDelivered, _AckTag}}, Queue1} -> - %% these have come via the prefetcher, so are no longer in - %% the disk queue so they need to be republished - republish_message_to_disk_queue(IsDelivered, Q, Queue1, - PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered); - {{value, {Q, Count}}, Queue1} -> - send_messages_to_disk(IsDurable, Q, Queue1, PublishCount, - RequeueCount + Count, Commit, - inc_queue_length(Q, MsgBuf, Count)) - end. - -republish_message_to_disk_queue(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf, Msg = - #basic_message { guid = MsgId }, IsDelivered) -> - Commit1 = flush_requeue_to_disk_queue(Q, RequeueCount, Commit), - ok = rabbit_disk_queue:tx_publish(Msg), - {PublishCount1, Commit2} = - case PublishCount == ?TO_DISK_MAX_FLUSH_SIZE of - true -> ok = flush_messages_to_disk_queue(Q, Commit1), - {1, [{MsgId, IsDelivered}]}; - false -> {PublishCount + 1, [{MsgId, IsDelivered} | Commit1]} - end, - send_messages_to_disk(IsDurable, Q, Queue, PublishCount1, 0, - Commit2, inc_queue_length(Q, MsgBuf, 1)). - -flush_messages_to_disk_queue(_Q, []) -> - ok; -flush_messages_to_disk_queue(Q, Commit) -> - rabbit_disk_queue:tx_commit(Q, lists:reverse(Commit), []). - -flush_requeue_to_disk_queue(_Q, 0, Commit) -> - Commit; -flush_requeue_to_disk_queue(Q, RequeueCount, Commit) -> - ok = flush_messages_to_disk_queue(Q, Commit), - ok = rabbit_disk_queue:requeue_next_n(Q, RequeueCount), - []. - -to_mixed_mode(_TxnMessages, State = #mqstate { mode = mixed }) -> - {ok, State}; -to_mixed_mode(TxnMessages, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable }) -> - rabbit_log:info("Converting queue to mixed mode: ~p~n", [Q]), - %% The queue has a token just saying how many msgs are on disk - %% (this is already built for us when in disk mode). - %% Don't actually do anything to the disk - %% Don't start prefetcher just yet because the queue maybe busy - - %% wait for hibernate timeout in the amqqueue_process. - - %% Remove txn messages from disk which are neither persistent and - %% durable. This is necessary to avoid leaks. This is also pretty - %% much the inverse behaviour of our own tx_cancel/2 which is why - %% we're not using it. - Cancel = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent }, Acc) -> - case IsDurable andalso IsPersistent of - true -> Acc; - false -> [Msg #basic_message.guid | Acc] - end - end, [], TxnMessages), - ok = if Cancel == [] -> ok; - true -> rabbit_disk_queue:tx_cancel(Cancel) - end, - garbage_collect(), - {ok, State #mqstate { mode = mixed }}. - -inc_queue_length(_Q, MsgBuf, 0) -> - MsgBuf; -inc_queue_length(Q, MsgBuf, Count) -> - {NewCount, MsgBufTail} = - case queue:out_r(MsgBuf) of - {empty, MsgBuf1} -> {Count, MsgBuf1}; - {{value, {Q, Len}}, MsgBuf1} -> {Len + Count, MsgBuf1}; - {{value, _}, _MsgBuf1} -> {Count, MsgBuf} - end, - queue:in({Q, NewCount}, MsgBufTail). - -dec_queue_length(Count, State = #mqstate { queue = Q, msg_buf = MsgBuf }) -> - case queue:out(MsgBuf) of - {{value, {Q, Len}}, MsgBuf1} -> - case Len of - Count -> - maybe_prefetch(State #mqstate { msg_buf = MsgBuf1 }); - _ when Len > Count -> - State #mqstate { msg_buf = queue:in_r({Q, Len-Count}, - MsgBuf1)} - end; - _ -> State - end. - -maybe_prefetch(State = #mqstate { prefetcher = undefined, - mode = mixed, - msg_buf = MsgBuf, - queue = Q }) -> - case queue:peek(MsgBuf) of - {value, {Q, Count}} -> {ok, Prefetcher} = - rabbit_queue_prefetcher:start_link(Q, Count), - State #mqstate { prefetcher = Prefetcher }; - _ -> State - end; -maybe_prefetch(State) -> - State. - -publish(Msg, State = #mqstate { mode = disk, queue = Q, length = Length, - msg_buf = MsgBuf, memory_size = QSize, - memory_gain = Gain }) -> - MsgBuf1 = inc_queue_length(Q, MsgBuf, 1), - ok = rabbit_disk_queue:publish(Q, Msg, false), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_gain = Gain + MsgSize, - memory_size = QSize + MsgSize, - msg_buf = MsgBuf1, length = Length + 1 }}; -publish(Msg = #basic_message { is_persistent = IsPersistent }, State = - #mqstate { queue = Q, mode = mixed, is_durable = IsDurable, - msg_buf = MsgBuf, length = Length, memory_size = QSize, - memory_gain = Gain }) -> - ok = case IsDurable andalso IsPersistent of - true -> rabbit_disk_queue:publish(Q, Msg, false); - false -> ok - end, - MsgSize = size_of_message(Msg), - {ok, State #mqstate { msg_buf = queue:in({Msg, false}, MsgBuf), - length = Length + 1, memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -%% Assumption here is that the queue is empty already (only called via -%% attempt_immediate_delivery). -publish_delivered(Msg = - #basic_message { guid = MsgId, is_persistent = IsPersistent}, - State = - #mqstate { mode = Mode, is_durable = IsDurable, - queue = Q, length = 0, - memory_size = QSize, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:publish(Q, Msg, true), - MsgSize = size_of_message(Msg), - State1 = State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }, - case IsDurable andalso IsPersistent of - true -> - %% must call phantom_deliver otherwise the msg remains at - %% the head of the queue. This is synchronous, but - %% unavoidable as we need the AckTag - {MsgId, IsPersistent, true, AckTag, 0} = - rabbit_disk_queue:phantom_deliver(Q), - {ok, AckTag, State1}; - false -> - %% in this case, we don't actually care about the ack, so - %% auto ack it (asynchronously). - ok = rabbit_disk_queue:auto_ack_next_message(Q), - {ok, noack, State1} - end; -publish_delivered(Msg, State = - #mqstate { mode = mixed, length = 0, memory_size = QSize, - memory_gain = Gain }) -> - MsgSize = size_of_message(Msg), - {ok, noack, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -deliver(State = #mqstate { length = 0 }) -> - {empty, State}; -deliver(State = #mqstate { msg_buf = MsgBuf, queue = Q, - is_durable = IsDurable, length = Length, - prefetcher = Prefetcher }) -> - {{value, Value}, MsgBuf1} = queue:out(MsgBuf), - Rem = Length - 1, - State1 = State #mqstate { length = Rem }, - case Value of - {Msg = #basic_message { guid = MsgId, is_persistent = IsPersistent }, - IsDelivered} -> - AckTag = - case IsDurable andalso IsPersistent of - true -> - {MsgId, IsPersistent, IsDelivered, AckTag1, _PRem} - = rabbit_disk_queue:phantom_deliver(Q), - AckTag1; - false -> - noack - end, - State2 = maybe_prefetch(State1 #mqstate { msg_buf = MsgBuf1 }), - {{Msg, IsDelivered, AckTag, Rem}, State2}; - {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTag} -> - %% message has come via the prefetcher, thus it's been - %% delivered. If it's not persistent+durable, we should - %% ack it now - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, - State1 #mqstate { msg_buf = MsgBuf1 }}; - _ when Prefetcher == undefined -> - State2 = dec_queue_length(1, State1), - {Msg = #basic_message { is_persistent = IsPersistent }, - _Size, IsDelivered, AckTag, _PersistRem} - = rabbit_disk_queue:deliver(Q), - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, State2}; - _ -> - case rabbit_queue_prefetcher:drain(Prefetcher) of - empty -> deliver(State #mqstate { prefetcher = undefined }); - {Fetched, Len, Status} -> - State2 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State), - deliver(State2 #mqstate - { msg_buf = queue:join(Fetched, MsgBuf2), - prefetcher = case Status of - finished -> undefined; - continuing -> Prefetcher - end }) - end - end. - -maybe_ack(_Q, true, true, AckTag) -> - AckTag; -maybe_ack(Q, _, _, AckTag) -> - ok = rabbit_disk_queue:ack(Q, [AckTag]), - noack. - -remove_noacks(MsgsWithAcks) -> - lists:foldl( - fun ({Msg, noack}, {AccAckTags, AccSize}) -> - {AccAckTags, size_of_message(Msg) + AccSize}; - ({Msg, AckTag}, {AccAckTags, AccSize}) -> - {[AckTag | AccAckTags], size_of_message(Msg) + AccSize} - end, {[], 0}, MsgsWithAcks). - -ack(MsgsWithAcks, State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss }) -> - {AckTags, ASize} = remove_noacks(MsgsWithAcks), - ok = case AckTags of - [] -> ok; - _ -> rabbit_disk_queue:ack(Q, AckTags) - end, - State1 = State #mqstate { memory_size = QSize - ASize, - memory_loss = Loss + ASize }, - {ok, State1}. - -tx_publish(Msg = #basic_message { is_persistent = IsPersistent }, - State = #mqstate { mode = Mode, memory_size = QSize, - is_durable = IsDurable, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:tx_publish(Msg), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}; -tx_publish(Msg, State = #mqstate { mode = mixed, memory_size = QSize, - memory_gain = Gain }) -> - %% this message will reappear in the tx_commit, so ignore for now - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -only_msg_ids(Pubs) -> - lists:map(fun (Msg) -> {Msg #basic_message.guid, false} end, Pubs). - -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = disk, queue = Q, length = Length, - memory_size = QSize, memory_loss = Loss, - msg_buf = MsgBuf }) -> - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = if ([] == Publishes) andalso ([] == RealAcks) -> ok; - true -> rabbit_disk_queue:tx_commit(Q, only_msg_ids(Publishes), - RealAcks) - end, - Len = erlang:length(Publishes), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len), - memory_size = QSize - ASize, - memory_loss = Loss + ASize }}; -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, length = Length, - memory_size = QSize, memory_loss = Loss }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl(fun (Msg = #basic_message { is_persistent = IsPersistent }, - {Acc, MsgBuf2}) -> - Acc1 = - case IsPersistent andalso IsDurable of - true -> [ {Msg #basic_message.guid, false} - | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, false}, MsgBuf2)} - end, {[], MsgBuf}, Publishes), - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = case ([] == PersistentPubs) andalso ([] == RealAcks) of - true -> ok; - false -> rabbit_disk_queue:tx_commit( - Q, lists:reverse(PersistentPubs), RealAcks) - end, - {ok, State #mqstate { msg_buf = MsgBuf1, memory_size = QSize - ASize, - length = Length + erlang:length(Publishes), - memory_loss = Loss + ASize }}. - -tx_cancel(Publishes, State = #mqstate { mode = disk, memory_size = QSize, - memory_loss = Loss }) -> - {MsgIds, CSize} = - lists:foldl( - fun (Msg = #basic_message { guid = MsgId }, {MsgIdsAcc, CSizeAcc}) -> - {[MsgId | MsgIdsAcc], CSizeAcc + size_of_message(Msg)} - end, {[], 0}, Publishes), - ok = rabbit_disk_queue:tx_cancel(MsgIds), - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}; -tx_cancel(Publishes, State = #mqstate { mode = mixed, is_durable = IsDurable, - memory_size = QSize, - memory_loss = Loss }) -> - {PersistentPubs, CSize} = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, {Acc, CSizeAcc}) -> - CSizeAcc1 = CSizeAcc + size_of_message(Msg), - {case IsPersistent of - true -> [MsgId | Acc]; - _ -> Acc - end, CSizeAcc1} - end, {[], 0}, Publishes), - ok = - if IsDurable -> - rabbit_disk_queue:tx_cancel(PersistentPubs); - true -> ok - end, - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}. - -%% [{Msg, AckTag}] -requeue(MessagesWithAckTags, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable, - length = Length, - msg_buf = MsgBuf }) -> - %% here, we may have messages with no ack tags, because of the - %% fact they are not persistent, but nevertheless we want to - %% requeue them. This means publishing them delivered. - Requeue - = lists:foldl( - fun ({#basic_message { is_persistent = IsPersistent }, AckTag}, RQ) - when IsDurable andalso IsPersistent -> - [{AckTag, true} | RQ]; - ({Msg, noack}, RQ) -> - ok = case RQ == [] of - true -> ok; - false -> rabbit_disk_queue:requeue( - Q, lists:reverse(RQ)) - end, - ok = rabbit_disk_queue:publish(Q, Msg, true), - [] - end, [], MessagesWithAckTags), - ok = rabbit_disk_queue:requeue(Q, lists:reverse(Requeue)), - Len = erlang:length(MessagesWithAckTags), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len) }}; -requeue(MessagesWithAckTags, State = #mqstate { mode = mixed, queue = Q, - msg_buf = MsgBuf, - is_durable = IsDurable, - length = Length }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, AckTag}, - {Acc, MsgBuf2}) -> - Acc1 = - case IsDurable andalso IsPersistent of - true -> [{AckTag, true} | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, true}, MsgBuf2)} - end, {[], MsgBuf}, MessagesWithAckTags), - ok = case PersistentPubs of - [] -> ok; - _ -> rabbit_disk_queue:requeue(Q, lists:reverse(PersistentPubs)) - end, - {ok, State #mqstate {msg_buf = MsgBuf1, - length = Length + erlang:length(MessagesWithAckTags)}}. - -purge(State = #mqstate { queue = Q, mode = disk, length = Count, - memory_loss = Loss, memory_size = QSize }) -> - Count = rabbit_disk_queue:purge(Q), - {Count, State #mqstate { length = 0, memory_size = 0, - memory_loss = Loss + QSize }}; -purge(State = #mqstate { queue = Q, mode = mixed, length = Length, - memory_loss = Loss, memory_size = QSize, - prefetcher = Prefetcher }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - rabbit_disk_queue:purge(Q), - {Length, - State #mqstate { msg_buf = queue:new(), length = 0, memory_size = 0, - memory_loss = Loss + QSize, prefetcher = undefined }}. - -delete_queue(State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss, prefetcher = Prefetcher - }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - ok = rabbit_disk_queue:delete_queue(Q), - {ok, State #mqstate { length = 0, memory_size = 0, msg_buf = queue:new(), - memory_loss = Loss + QSize, prefetcher = undefined }}. - -length(#mqstate { length = Length }) -> - Length. - -is_empty(#mqstate { length = Length }) -> - 0 == Length. - -estimate_queue_memory_and_reset_counters(State = - #mqstate { memory_size = Size, memory_gain = Gain, memory_loss = Loss }) -> - {State #mqstate { memory_gain = 0, memory_loss = 0 }, 4 * Size, Gain, Loss}. - -info(#mqstate { mode = Mode }) -> - Mode. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index b40294f6..575ecb0a 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -144,31 +144,11 @@ table_definitions() -> {disc_copies, [node()]}]}, {rabbit_queue, [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}, - {rabbit_disk_queue, - [{record_name, dq_msg_loc}, - {type, set}, - {local_content, true}, - {attributes, record_info(fields, dq_msg_loc)}, - {disc_copies, [node()]}]} - ]. - -replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - not lists:member({local_content, true}, Attrs) - ]. - -non_replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - lists:member({local_content, true}, Attrs) - ]. + {attributes, record_info(fields, amqqueue)}]}]. table_names() -> [Tab || {Tab, _} <- table_definitions()]. -replicated_table_names() -> - [Tab || {Tab, _} <- replicated_table_definitions()]. - dir() -> mnesia:system_info(directory). ensure_mnesia_dir() -> @@ -193,8 +173,7 @@ ensure_mnesia_not_running() -> check_schema_integrity() -> %%TODO: more thorough checks - case catch [mnesia:table_info(Tab, version) - || Tab <- table_names()] of + case catch [mnesia:table_info(Tab, version) || Tab <- table_names()] of {'EXIT', Reason} -> {error, Reason}; _ -> ok end. @@ -274,11 +253,9 @@ init_db(ClusterNodes) -> WasDiskNode = mnesia:system_info(use_dir), IsDiskNode = ClusterNodes == [] orelse lists:member(node(), ClusterNodes), - ExtraNodes = ClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ExtraNodes) of + case mnesia:change_config(extra_db_nodes, ClusterNodes -- [node()]) of {ok, []} -> - case WasDiskNode of - true -> + if WasDiskNode and IsDiskNode -> case check_schema_integrity() of ok -> ok; @@ -293,18 +270,22 @@ init_db(ClusterNodes) -> ok = move_db(), ok = create_schema() end; - false -> - ok = create_schema() + WasDiskNode -> + throw({error, {cannot_convert_disk_node_to_ram_node, + ClusterNodes}}); + IsDiskNode -> + ok = create_schema(); + true -> + throw({error, {unable_to_contact_cluster_nodes, + ClusterNodes}}) end; {ok, [_|_]} -> - TableCopyType = case IsDiskNode of - true -> disc; - false -> ram - end, - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_non_replicated_table_copies(disc), - ok = create_local_replicated_table_copies(TableCopyType); + ok = wait_for_tables(), + ok = create_local_table_copies( + case IsDiskNode of + true -> disc; + false -> ram + end); {error, Reason} -> %% one reason we may end up here is if we try to join %% nodes together that are currently running standalone or @@ -355,27 +336,16 @@ create_tables() -> table_definitions()), ok. -create_local_replicated_table_copies(Type) -> - create_local_table_copies(Type, replicated_table_definitions()). - -create_local_non_replicated_table_copies(Type) -> - create_local_table_copies(Type, non_replicated_table_definitions()). - -create_local_table_copies(Type, TableDefinitions) -> +create_local_table_copies(Type) -> + ok = if Type /= ram -> create_local_table_copy(schema, disc_copies); + true -> ok + end, lists:foreach( fun({Tab, TabDef}) -> HasDiscCopies = - case lists:keysearch(disc_copies, 1, TabDef) of - false -> false; - {value, {disc_copies, List1}} -> - lists:member(node(), List1) - end, + lists:keymember(disc_copies, 1, TabDef), HasDiscOnlyCopies = - case lists:keysearch(disc_only_copies, 1, TabDef) of - false -> false; - {value, {disc_only_copies, List2}} -> - lists:member(node(), List2) - end, + lists:keymember(disc_only_copies, 1, TabDef), StorageType = case Type of disc -> @@ -396,7 +366,10 @@ create_local_table_copies(Type, TableDefinitions) -> end, ok = create_local_table_copy(Tab, StorageType) end, - TableDefinitions), + table_definitions()), + ok = if Type == ram -> create_local_table_copy(schema, ram_copies); + true -> ok + end, ok. create_local_table_copy(Tab, Type) -> @@ -411,16 +384,10 @@ create_local_table_copy(Tab, Type) -> end, ok. -wait_for_replicated_tables() -> - wait_for_tables(replicated_table_names()). - -wait_for_tables() -> - wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> +wait_for_tables() -> case check_schema_integrity() of ok -> - case mnesia:wait_for_tables(TableNames, 30000) of + case mnesia:wait_for_tables(table_names(), 30000) of ok -> ok; {timeout, BadTabs} -> throw({error, {timeout_waiting_for_tables, BadTabs}}); diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl new file mode 100644 index 00000000..d0d60ddf --- /dev/null +++ b/src/rabbit_persister.erl @@ -0,0 +1,523 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_persister). + +-behaviour(gen_server). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([transaction/1, extend_transaction/2, dirty_work/1, + commit_transaction/1, rollback_transaction/1, + force_snapshot/0, serial/0]). + +-include("rabbit.hrl"). + +-define(SERVER, ?MODULE). + +-define(LOG_BUNDLE_DELAY, 5). +-define(COMPLETE_BUNDLE_DELAY, 2). + +-define(HIBERNATE_AFTER, 10000). + +-define(MAX_WRAP_ENTRIES, 500). + +-define(PERSISTER_LOG_FORMAT_VERSION, {2, 4}). + +-record(pstate, {log_handle, entry_count, deadline, + pending_logs, pending_replies, + snapshot}). + +%% two tables for efficient persistency +%% one maps a key to a message +%% the other maps a key to one or more queues. +%% The aim is to reduce the overload of storing a message multiple times +%% when it appears in several queues. +-record(psnapshot, {serial, transactions, messages, queues}). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(qmsg() :: {amqqueue(), pkey()}). +-type(work_item() :: + {publish, message(), qmsg()} | + {deliver, qmsg()} | + {ack, qmsg()}). + +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(transaction/1 :: ([work_item()]) -> 'ok'). +-spec(extend_transaction/2 :: (txn(), [work_item()]) -> 'ok'). +-spec(dirty_work/1 :: ([work_item()]) -> 'ok'). +-spec(commit_transaction/1 :: (txn()) -> 'ok'). +-spec(rollback_transaction/1 :: (txn()) -> 'ok'). +-spec(force_snapshot/0 :: () -> 'ok'). +-spec(serial/0 :: () -> non_neg_integer()). + +-endif. + +%%---------------------------------------------------------------------------- + +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + +transaction(MessageList) -> + ?LOGDEBUG("transaction ~p~n", [MessageList]), + TxnKey = rabbit_guid:guid(), + gen_server:call(?SERVER, {transaction, TxnKey, MessageList}, infinity). + +extend_transaction(TxnKey, MessageList) -> + ?LOGDEBUG("extend_transaction ~p ~p~n", [TxnKey, MessageList]), + gen_server:cast(?SERVER, {extend_transaction, TxnKey, MessageList}). + +dirty_work(MessageList) -> + ?LOGDEBUG("dirty_work ~p~n", [MessageList]), + gen_server:cast(?SERVER, {dirty_work, MessageList}). + +commit_transaction(TxnKey) -> + ?LOGDEBUG("commit_transaction ~p~n", [TxnKey]), + gen_server:call(?SERVER, {commit_transaction, TxnKey}, infinity). + +rollback_transaction(TxnKey) -> + ?LOGDEBUG("rollback_transaction ~p~n", [TxnKey]), + gen_server:cast(?SERVER, {rollback_transaction, TxnKey}). + +force_snapshot() -> + gen_server:call(?SERVER, force_snapshot, infinity). + +serial() -> + gen_server:call(?SERVER, serial, infinity). + +%%-------------------------------------------------------------------- + +init(_Args) -> + process_flag(trap_exit, true), + FileName = base_filename(), + ok = filelib:ensure_dir(FileName), + Snapshot = #psnapshot{serial = 0, + transactions = dict:new(), + messages = ets:new(messages, []), + queues = ets:new(queues, [])}, + LogHandle = + case disk_log:open([{name, rabbit_persister}, + {head, current_snapshot(Snapshot)}, + {file, FileName}]) of + {ok, LH} -> LH; + {repaired, LH, {recovered, Recovered}, {badbytes, Bad}} -> + WarningFun = if + Bad > 0 -> fun rabbit_log:warning/2; + true -> fun rabbit_log:info/2 + end, + WarningFun("Repaired persister log - ~p recovered, ~p bad~n", + [Recovered, Bad]), + LH + end, + {Res, LoadedSnapshot} = internal_load_snapshot(LogHandle, Snapshot), + NewSnapshot = LoadedSnapshot#psnapshot{ + serial = LoadedSnapshot#psnapshot.serial + 1}, + case Res of + ok -> + ok = take_snapshot(LogHandle, NewSnapshot); + {error, Reason} -> + rabbit_log:error("Failed to load persister log: ~p~n", [Reason]), + ok = take_snapshot_and_save_old(LogHandle, NewSnapshot) + end, + State = #pstate{log_handle = LogHandle, + entry_count = 0, + deadline = infinity, + pending_logs = [], + pending_replies = [], + snapshot = NewSnapshot}, + {ok, State}. + +handle_call({transaction, Key, MessageList}, From, State) -> + NewState = internal_extend(Key, MessageList, State), + do_noreply(internal_commit(From, Key, NewState)); +handle_call({commit_transaction, TxnKey}, From, State) -> + do_noreply(internal_commit(From, TxnKey, State)); +handle_call(force_snapshot, _From, State) -> + do_reply(ok, flush(true, State)); +handle_call(serial, _From, + State = #pstate{snapshot = #psnapshot{serial = Serial}}) -> + do_reply(Serial, State); +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast({rollback_transaction, TxnKey}, State) -> + do_noreply(internal_rollback(TxnKey, State)); +handle_cast({dirty_work, MessageList}, State) -> + do_noreply(internal_dirty_work(MessageList, State)); +handle_cast({extend_transaction, TxnKey, MessageList}, State) -> + do_noreply(internal_extend(TxnKey, MessageList, State)); +handle_cast(_Msg, State) -> + {noreply, State}. + +handle_info(timeout, State = #pstate{deadline = infinity}) -> + State1 = flush(true, State), + %% TODO: Once we drop support for R11B-5, we can change this to + %% {noreply, State1, hibernate}; + proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State1]); +handle_info(timeout, State) -> + do_noreply(flush(State)); +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, State = #pstate{log_handle = LogHandle}) -> + flush(State), + disk_log:close(LogHandle), + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, flush(State)}. + +%%-------------------------------------------------------------------- + +internal_extend(Key, MessageList, State) -> + log_work(fun (ML) -> {extend_transaction, Key, ML} end, + MessageList, State). + +internal_dirty_work(MessageList, State) -> + log_work(fun (ML) -> {dirty_work, ML} end, + MessageList, State). + +internal_commit(From, Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {commit_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + complete(From, Unit, State#pstate{snapshot = NewSnapshot}). + +internal_rollback(Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {rollback_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +complete(From, Item, State = #pstate{deadline = ExistingDeadline, + pending_logs = Logs, + pending_replies = Waiting}) -> + State#pstate{deadline = compute_deadline( + ?COMPLETE_BUNDLE_DELAY, ExistingDeadline), + pending_logs = [Item | Logs], + pending_replies = [From | Waiting]}. + +%% This is made to limit disk usage by writing messages only once onto +%% disk. We keep a table associating pkeys to messages, and provided +%% the list of messages to output is left to right, we can guarantee +%% that pkeys will be a backreference to a message in memory when a +%% "tied" is met. +log_work(CreateWorkUnit, MessageList, + State = #pstate{ + snapshot = Snapshot = #psnapshot{ + messages = Messages}}) -> + Unit = CreateWorkUnit( + rabbit_misc:map_in_order( + fun(M = {publish, Message, QK = {_QName, PKey}}) -> + case ets:lookup(Messages, PKey) of + [_] -> {tied, QK}; + [] -> ets:insert(Messages, {PKey, Message}), + M + end; + (M) -> M + end, + MessageList)), + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +log(State = #pstate{deadline = ExistingDeadline, pending_logs = Logs}, + Message) -> + State#pstate{deadline = compute_deadline(?LOG_BUNDLE_DELAY, + ExistingDeadline), + pending_logs = [Message | Logs]}. + +base_filename() -> + rabbit_mnesia:dir() ++ "/rabbit_persister.LOG". + +take_snapshot(LogHandle, OldFileName, Snapshot) -> + ok = disk_log:sync(LogHandle), + %% current_snapshot is the Head (ie. first thing logged) + ok = disk_log:reopen(LogHandle, OldFileName, current_snapshot(Snapshot)). + +take_snapshot(LogHandle, Snapshot) -> + OldFileName = lists:flatten(base_filename() ++ ".previous"), + file:delete(OldFileName), + rabbit_log:info("Rolling persister log to ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +take_snapshot_and_save_old(LogHandle, Snapshot) -> + {MegaSecs, Secs, MicroSecs} = erlang:now(), + Timestamp = MegaSecs * 1000000 + Secs * 1000 + MicroSecs, + OldFileName = lists:flatten(io_lib:format("~s.saved.~p", + [base_filename(), Timestamp])), + rabbit_log:info("Saving persister log in ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +maybe_take_snapshot(Force, State = #pstate{entry_count = EntryCount, + log_handle = LH, + snapshot = Snapshot}) + when Force orelse EntryCount >= ?MAX_WRAP_ENTRIES -> + ok = take_snapshot(LH, Snapshot), + State#pstate{entry_count = 0}; +maybe_take_snapshot(_Force, State) -> + State. + +later_ms(DeltaMilliSec) -> + {MegaSec, Sec, MicroSec} = now(), + %% Note: not normalised. Unimportant for this application. + {MegaSec, Sec, MicroSec + (DeltaMilliSec * 1000)}. + +%% Result = B - A, more or less +time_diff({B1, B2, B3}, {A1, A2, A3}) -> + (B1 - A1) * 1000000 + (B2 - A2) + (B3 - A3) / 1000000.0 . + +compute_deadline(TimerDelay, infinity) -> + later_ms(TimerDelay); +compute_deadline(_TimerDelay, ExistingDeadline) -> + ExistingDeadline. + +compute_timeout(infinity) -> + ?HIBERNATE_AFTER; +compute_timeout(Deadline) -> + DeltaMilliSec = time_diff(Deadline, now()) * 1000.0, + if + DeltaMilliSec =< 1 -> + 0; + true -> + round(DeltaMilliSec) + end. + +do_noreply(State = #pstate{deadline = Deadline}) -> + {noreply, State, compute_timeout(Deadline)}. + +do_reply(Reply, State = #pstate{deadline = Deadline}) -> + {reply, Reply, State, compute_timeout(Deadline)}. + +flush(State) -> flush(false, State). + +flush(ForceSnapshot, State = #pstate{pending_logs = PendingLogs, + pending_replies = Waiting, + log_handle = LogHandle}) -> + State1 = if PendingLogs /= [] -> + disk_log:alog(LogHandle, lists:reverse(PendingLogs)), + State#pstate{entry_count = State#pstate.entry_count + 1}; + true -> + State + end, + State2 = maybe_take_snapshot(ForceSnapshot, State1), + if Waiting /= [] -> + ok = disk_log:sync(LogHandle), + lists:foreach(fun (From) -> gen_server:reply(From, ok) end, + Waiting); + true -> + ok + end, + State2#pstate{deadline = infinity, + pending_logs = [], + pending_replies = []}. + +current_snapshot(_Snapshot = #psnapshot{serial = Serial, + transactions= Ts, + messages = Messages, + queues = Queues}) -> + %% Avoid infinite growth of the table by removing messages not + %% bound to a queue anymore + prune_table(Messages, ets:foldl( + fun ({{_QName, PKey}, _Delivered}, S) -> + sets:add_element(PKey, S) + end, sets:new(), Queues)), + InnerSnapshot = {{serial, Serial}, + {txns, Ts}, + {messages, ets:tab2list(Messages)}, + {queues, ets:tab2list(Queues)}}, + ?LOGDEBUG("Inner snapshot: ~p~n", [InnerSnapshot]), + {persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + term_to_binary(InnerSnapshot)}. + +prune_table(Tab, Keys) -> + true = ets:safe_fixtable(Tab, true), + ok = prune_table(Tab, Keys, ets:first(Tab)), + true = ets:safe_fixtable(Tab, false). + +prune_table(_Tab, _Keys, '$end_of_table') -> ok; +prune_table(Tab, Keys, Key) -> + case sets:is_element(Key, Keys) of + true -> ok; + false -> ets:delete(Tab, Key) + end, + prune_table(Tab, Keys, ets:next(Tab, Key)). + +internal_load_snapshot(LogHandle, + Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + {K, [Loaded_Snapshot | Items]} = disk_log:chunk(LogHandle, start), + case check_version(Loaded_Snapshot) of + {ok, StateBin} -> + {{serial, Serial}, {txns, Ts}, {messages, Ms}, {queues, Qs}} = + binary_to_term(StateBin), + true = ets:insert(Messages, Ms), + true = ets:insert(Queues, Qs), + Snapshot1 = replay(Items, LogHandle, K, + Snapshot#psnapshot{ + serial = Serial, + transactions = Ts}), + Snapshot2 = requeue_messages(Snapshot1), + %% uncompleted transactions are discarded - this is TRTTD + %% since we only get into this code on node restart, so + %% any uncompleted transactions will have been aborted. + {ok, Snapshot2#psnapshot{transactions = dict:new()}}; + {error, Reason} -> {{error, Reason}, Snapshot} + end. + +check_version({persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + StateBin}) -> + {ok, StateBin}; +check_version({persist_snapshot, {vsn, Vsn}, _StateBin}) -> + {error, {unsupported_persister_log_format, Vsn}}; +check_version(_Other) -> + {error, unrecognised_persister_log_format}. + +requeue_messages(Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + Work = ets:foldl(fun accumulate_requeues/2, dict:new(), Queues), + %% unstable parallel map, because order doesn't matter + L = lists:append( + rabbit_misc:upmap( + %% we do as much work as possible in spawned worker + %% processes, but we need to make sure the ets:inserts are + %% performed in self() + fun ({QName, Requeues}) -> + requeue(QName, Requeues, Messages) + end, dict:to_list(Work))), + NewMessages = [{K, M} || {{_Q, K}, M, _D} <- L], + NewQueues = [{QK, D} || {QK, _M, D} <- L], + ets:delete_all_objects(Messages), + ets:delete_all_objects(Queues), + true = ets:insert(Messages, NewMessages), + true = ets:insert(Queues, NewQueues), + %% contains the mutated messages and queues tables + Snapshot. + +accumulate_requeues({{QName, PKey}, Delivered}, Acc) -> + Requeue = {PKey, Delivered}, + dict:update(QName, + fun (Requeues) -> [Requeue | Requeues] end, + [Requeue], + Acc). + +requeue(QName, Requeues, Messages) -> + case rabbit_amqqueue:lookup(QName) of + {ok, #amqqueue{pid = QPid}} -> + RequeueMessages = + [{{QName, PKey}, Message, Delivered} || + {PKey, Delivered} <- Requeues, + {_, Message} <- ets:lookup(Messages, PKey)], + rabbit_amqqueue:redeliver( + QPid, + %% Messages published by the same process receive + %% persistence keys that are monotonically + %% increasing. Since message ordering is defined on a + %% per-channel basis, and channels are bound to specific + %% processes, sorting the list does provide the correct + %% ordering properties. + [{Message, Delivered} || {_, Message, Delivered} <- + lists:sort(RequeueMessages)]), + RequeueMessages; + {error, not_found} -> + [] + end. + +replay([], LogHandle, K, Snapshot) -> + case disk_log:chunk(LogHandle, K) of + {K1, Items} -> + replay(Items, LogHandle, K1, Snapshot); + {K1, Items, Badbytes} -> + rabbit_log:warning("~p bad bytes recovering persister log~n", + [Badbytes]), + replay(Items, LogHandle, K1, Snapshot); + eof -> Snapshot + end; +replay([Item | Items], LogHandle, K, Snapshot) -> + NewSnapshot = internal_integrate_messages(Item, Snapshot), + replay(Items, LogHandle, K, NewSnapshot). + +internal_integrate_messages(Items, Snapshot) -> + lists:foldl(fun (Item, Snap) -> internal_integrate1(Item, Snap) end, + Snapshot, Items). + +internal_integrate1({extend_transaction, Key, MessageList}, + Snapshot = #psnapshot {transactions = Transactions}) -> + NewTransactions = + dict:update(Key, + fun (MessageLists) -> [MessageList | MessageLists] end, + [MessageList], + Transactions), + Snapshot#psnapshot{transactions = NewTransactions}; +internal_integrate1({rollback_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions}) -> + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; +internal_integrate1({commit_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions, + messages = Messages, + queues = Queues}) -> + case dict:find(Key, Transactions) of + {ok, MessageLists} -> + ?LOGDEBUG("persist committing txn ~p~n", [Key]), + lists:foreach(fun (ML) -> perform_work(ML, Messages, Queues) end, + lists:reverse(MessageLists)), + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; + error -> + Snapshot + end; +internal_integrate1({dirty_work, MessageList}, + Snapshot = #psnapshot {messages = Messages, + queues = Queues}) -> + perform_work(MessageList, Messages, Queues), + Snapshot. + +perform_work(MessageList, Messages, Queues) -> + lists:foreach( + fun (Item) -> perform_work_item(Item, Messages, Queues) end, + MessageList). + +perform_work_item({publish, Message, QK = {_QName, PKey}}, Messages, Queues) -> + ets:insert(Messages, {PKey, Message}), + ets:insert(Queues, {QK, false}); + +perform_work_item({tied, QK}, _Messages, Queues) -> + ets:insert(Queues, {QK, false}); + +perform_work_item({deliver, QK}, _Messages, Queues) -> + %% from R12B-2 onward we could use ets:update_element/3 here + ets:delete(Queues, QK), + ets:insert(Queues, {QK, true}); + +perform_work_item({ack, QK}, _Messages, Queues) -> + ets:delete(Queues, QK). diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl deleted file mode 100644 index 5a6c8b39..00000000 --- a/src/rabbit_queue_mode_manager.erl +++ /dev/null @@ -1,496 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_mode_manager). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([register/5, report_memory/3, report_memory/5, info/0, - pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). - --define(TOTAL_TOKENS, 10000000). --define(ACTIVITY_THRESHOLD, 25). - --define(SERVER, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(register/5 :: (pid(), boolean(), atom(), atom(), list()) -> 'ok'). --spec(report_memory/3 :: (pid(), non_neg_integer(), bool()) -> 'ok'). --spec(report_memory/5 :: (pid(), non_neg_integer(), - (non_neg_integer() | 'undefined'), - (non_neg_integer() | 'undefined'), bool()) -> - 'ok'). --spec(pin_to_disk/1 :: (pid()) -> 'ok'). --spec(unpin_from_disk/1 :: (pid()) -> 'ok'). --spec(info/0 :: () -> [{atom(), any()}]). --spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). - --endif. - --record(state, { available_tokens, - mixed_queues, - callbacks, - tokens_per_byte, - lowrate, - hibernate, - disk_mode_pins, - unevictable, - alarmed - }). - -%% Token-credit based memory management - -%% Start off by working out the amount of memory available in the -%% system (RAM). Then, work out how many tokens each byte corresponds -%% to. This is the tokens_per_byte field. When a process registers, it -%% must provide an M-F-A triple to a function that needs one further -%% argument, which is the new mode. This will either be 'mixed' or -%% 'disk'. -%% -%% Processes then report their own memory usage, in bytes, and the -%% manager takes care of the rest. -%% -%% There are a finite number of tokens in the system. These are -%% allocated to processes as they are requested. We keep track of -%% processes which have hibernated, and processes that are doing only -%% a low rate of work. When a request for memory can't be satisfied, -%% we try and evict processes first from the hibernated group, and -%% then from the lowrate group. The hibernated group is a simple -%% queue, and so is implicitly sorted by the order in which processes -%% were added to the queue. This means that when removing from the -%% queue, we hibernate the sleepiest pid first. The lowrate group is a -%% priority queue, where the priority is the truncated log (base e) of -%% the amount of memory allocated. Thus when we remove from the queue, -%% we first remove the queue from the highest bucket. -%% -%% If the request still can't be satisfied after evicting to disk -%% everyone from those two groups (and note that we check first -%% whether or not freeing them would make available enough tokens to -%% satisfy the request rather than just sending all those queues to -%% disk and then going "whoops, didn't help after all"), then we send -%% the requesting process to disk. When a queue registers, it can -%% declare itself "unevictable". If a queue is unevictable then it -%% will not be sent to disk as a result of other processes requesting -%% more memory. However, if it itself is requesting more memory and -%% that request can't be satisfied then it is still sent to disk as -%% before. This feature is only used by the disk_queue, because if the -%% disk queue is not being used, and hibernates, and then memory -%% pressure gets tight, the disk_queue would typically be one of the -%% first processes to get sent to disk, which cripples -%% performance. Thus by setting it unevictable, it is only possible -%% for the disk_queue to be sent to disk when it is active and -%% attempting to increase its memory allocation. -%% -%% If a process has been sent to disk, it continues making -%% requests. As soon as a request can be satisfied (and this can -%% include sending other processes to disk in the way described -%% above), it will be told to come back into mixed mode. We do not -%% keep any information about queues in disk mode. -%% -%% Note that the lowrate and hibernate groups can get very out of -%% date. This is fine, and somewhat unavoidable given the absence of -%% useful APIs for queues. Thus we allow them to get out of date -%% (processes will be left in there when they change groups, -%% duplicates can appear, dead processes are not pruned etc etc etc), -%% and when we go through the groups, summing up their amount of -%% memory, we tidy up at that point. -%% -%% A process which is not evicted to disk, and is requesting a smaller -%% amount of RAM than its last request will always be satisfied. A -%% mixed-mode process that is busy but consuming an unchanging amount -%% of RAM will never be sent to disk. The disk_queue is also managed -%% in the same way. This means that a queue that has gone back to -%% being mixed after being in disk mode now has its messages counted -%% twice as they are counted both in the request made by the queue -%% (even though they may not yet be in RAM (though see the -%% prefetcher)) and also by the disk_queue. Thus the amount of -%% available RAM must be higher when going disk -> mixed than when -%% going mixed -> disk. This is fairly sensible as it reduces the risk -%% of any oscillations occurring. -%% -%% The queue process deliberately reports 4 times its estimated RAM -%% usage, and the disk_queue 2.5 times. In practise, this seems to -%% work well. Note that we are deliberately running out of tokes a -%% little early because of the fact that the mixed -> disk transition -%% can transiently eat a lot of memory and take some time (flushing a -%% few million messages to disk is never going to be instantaneous). - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -register(Pid, Unevictable, Module, Function, Args) -> - gen_server2:cast(?SERVER, {register, Pid, Unevictable, - Module, Function, Args}). - -pin_to_disk(Pid) -> - gen_server2:call(?SERVER, {pin_to_disk, Pid}). - -unpin_from_disk(Pid) -> - gen_server2:call(?SERVER, {unpin_from_disk, Pid}). - -report_memory(Pid, Memory, Hibernating) -> - report_memory(Pid, Memory, undefined, undefined, Hibernating). - -report_memory(Pid, Memory, Gain, Loss, Hibernating) -> - gen_server2:cast(?SERVER, - {report_memory, Pid, Memory, Gain, Loss, Hibernating}). - -info() -> - gen_server2:call(?SERVER, info). - -conserve_memory(_Pid, Conserve) -> - gen_server2:pcast(?SERVER, 9, {conserve_memory, Conserve}). - -init([]) -> - process_flag(trap_exit, true), - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - {MemTotal, MemUsed, _BigProc} = memsup:get_memory_data(), - MemAvail = MemTotal - MemUsed, - TPB = if MemAvail == 0 -> 0; - true -> ?TOTAL_TOKENS / MemAvail - end, - {ok, #state { available_tokens = ?TOTAL_TOKENS, - mixed_queues = dict:new(), - callbacks = dict:new(), - tokens_per_byte = TPB, - lowrate = priority_queue:new(), - hibernate = queue:new(), - disk_mode_pins = sets:new(), - unevictable = sets:new(), - alarmed = false - }}. - -handle_call({pin_to_disk, Pid}, _From, - State = #state { mixed_queues = Mixed, - callbacks = Callbacks, - available_tokens = Avail, - disk_mode_pins = Pins }) -> - {Res, State1} = - case sets:is_element(Pid, Pins) of - true -> {ok, State}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - ok = set_queue_mode(Callbacks, Pid, disk), - {ok, State #state { mixed_queues = - dict:erase(Pid, Mixed), - available_tokens = Avail + OAlloc, - disk_mode_pins = - sets:add_element(Pid, Pins) - }}; - disk -> - {ok, State #state { disk_mode_pins = - sets:add_element(Pid, Pins) }} - end - end, - {reply, Res, State1}; - -handle_call({unpin_from_disk, Pid}, _From, - State = #state { disk_mode_pins = Pins }) -> - {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; - -handle_call(info, _From, State) -> - State1 = #state { available_tokens = Avail, - mixed_queues = Mixed, - lowrate = Lazy, - hibernate = Sleepy, - disk_mode_pins = Pins, - unevictable = Unevictable } = - free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying - {reply, [{ available_tokens, Avail }, - { mixed_queues, dict:to_list(Mixed) }, - { lowrate_queues, priority_queue:to_list(Lazy) }, - { hibernated_queues, queue:to_list(Sleepy) }, - { queues_pinned_to_disk, sets:to_list(Pins) }, - { unevictable_queues, sets:to_list(Unevictable) }], State1}. - - -handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, - State = #state { mixed_queues = Mixed, - available_tokens = Avail, - callbacks = Callbacks, - disk_mode_pins = Pins, - tokens_per_byte = TPB, - alarmed = Alarmed }) -> - Req = rabbit_misc:ceil(TPB * Memory), - LowRate = case {BytesGained, BytesLost} of - {undefined, _} -> false; - {_, undefined} -> false; - {G, L} -> G < ?ACTIVITY_THRESHOLD andalso - L < ?ACTIVITY_THRESHOLD - end, - MixedActivity = if Hibernating -> hibernate; - LowRate -> lowrate; - true -> active - end, - {StateN = #state { lowrate = Lazy, hibernate = Sleepy }, ActivityNew} = - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - Avail1 = Avail + OAlloc, - State1 = - #state { available_tokens = Avail2, mixed_queues = Mixed1 } - = free_upto(Pid, Req, - State #state { available_tokens = Avail1 }), - case Req > Avail2 of - true -> %% nowt we can do, send to disk - ok = set_queue_mode(Callbacks, Pid, disk), - {State1 #state { mixed_queues = - dict:erase(Pid, Mixed1) }, disk}; - false -> %% keep mixed - {State1 #state - { mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail2 - Req }, - MixedActivity} - end; - disk -> - case sets:is_element(Pid, Pins) orelse Alarmed of - true -> - {State, disk}; - false -> - State1 = #state { available_tokens = Avail1, - mixed_queues = Mixed1 } = - free_upto(Pid, Req, State), - case Req > Avail1 orelse Hibernating orelse LowRate of - true -> - %% not enough space, or no compelling - %% reason, so stay as disk - {State1, disk}; - false -> %% can go to mixed mode - set_queue_mode(Callbacks, Pid, mixed), - {State1 #state { - mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail1 - Req }, - MixedActivity} - end - end - end, - StateN1 = - case ActivityNew of - active -> StateN; - disk -> StateN; - lowrate -> - StateN #state { lowrate = add_to_lowrate(Pid, Req, Lazy) }; - hibernate -> - StateN #state { hibernate = queue:in(Pid, Sleepy) } - end, - {noreply, StateN1}; - -handle_cast({register, Pid, IsUnevictable, Module, Function, Args}, - State = #state { callbacks = Callbacks, - unevictable = Unevictable }) -> - _MRef = erlang:monitor(process, Pid), - Unevictable1 = case IsUnevictable of - true -> sets:add_element(Pid, Unevictable); - false -> Unevictable - end, - {noreply, State #state { callbacks = dict:store - (Pid, {Module, Function, Args}, Callbacks), - unevictable = Unevictable1 - }}; - -handle_cast({conserve_memory, Conserve}, State) -> - {noreply, State #state { alarmed = Conserve }}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #state { available_tokens = Avail, - mixed_queues = Mixed }) -> - State1 = case find_queue(Pid, Mixed) of - disk -> - State; - {mixed, {Alloc, _Activity}} -> - State #state { available_tokens = Avail + Alloc, - mixed_queues = dict:erase(Pid, Mixed) } - end, - {noreply, State1}; -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -add_to_lowrate(Pid, Alloc, Lazy) -> - Bucket = if Alloc == 0 -> 0; %% can't take log(0) - true -> trunc(math:log(Alloc)) %% log base e - end, - priority_queue:in({Pid, Bucket, Alloc}, Bucket, Lazy). - -find_queue(Pid, Mixed) -> - case dict:find(Pid, Mixed) of - {ok, Value} -> {mixed, Value}; - error -> disk - end. - -set_queue_mode(Callbacks, Pid, Mode) -> - {Module, Function, Args} = dict:fetch(Pid, Callbacks), - erlang:apply(Module, Function, Args ++ [Mode]). - -tidy_and_sum_lazy(IgnorePids, Lazy, Mixed) -> - tidy_and_sum(lowrate, Mixed, - fun (Lazy1) -> - case priority_queue:out(Lazy1) of - {empty, Lazy2} -> - {empty, Lazy2}; - {{value, {Pid, _Bucket, _Alloc}}, Lazy2} -> - {{value, Pid}, Lazy2} - end - end, fun add_to_lowrate/3, IgnorePids, Lazy, - priority_queue:new(), 0). - -tidy_and_sum_sleepy(IgnorePids, Sleepy, Mixed) -> - tidy_and_sum(hibernate, Mixed, fun queue:out/1, - fun (Pid, _Alloc, Queue) -> queue:in(Pid, Queue) end, - IgnorePids, Sleepy, queue:new(), 0). - -tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, DupCheckSet, - CataInit, AnaInit, AllocAcc) -> - case Catamorphism(CataInit) of - {empty, _CataInit} -> {AnaInit, AllocAcc}; - {{value, Pid}, CataInit1} -> - {DupCheckSet1, AnaInit1, AllocAcc1} = - case sets:is_element(Pid, DupCheckSet) of - true -> - {DupCheckSet, AnaInit, AllocAcc}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {Alloc, AtomExpected}} -> - {sets:add_element(Pid, DupCheckSet), - Anamorphism(Pid, Alloc, AnaInit), - Alloc + AllocAcc}; - _ -> - {DupCheckSet, AnaInit, AllocAcc} - end - end, - tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, - DupCheckSet1, CataInit1, AnaInit1, AllocAcc1) - end. - -free_upto_lazy(IgnorePids, Callbacks, Lazy, Mixed, Req) -> - free_from( - Callbacks, - fun(_Mixed, Lazy1, LazyAcc) -> - case priority_queue:out(Lazy1) of - {empty, _Lazy2} -> - empty; - {{value, V = {Pid, Bucket, Alloc}}, Lazy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Lazy2, - priority_queue:in(V, Bucket, LazyAcc)}; - false -> {value, Lazy2, Pid, Alloc} - end - end - end, fun priority_queue:join/2, Mixed, Lazy, priority_queue:new(), Req). - -free_upto_sleepy(IgnorePids, Callbacks, Sleepy, Mixed, Req) -> - free_from(Callbacks, - fun(Mixed1, Sleepy1, SleepyAcc) -> - case queue:out(Sleepy1) of - {empty, _Sleepy2} -> - empty; - {{value, Pid}, Sleepy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Sleepy2, - queue:in(Pid, SleepyAcc)}; - false -> {Alloc, hibernate} = - dict:fetch(Pid, Mixed1), - {value, Sleepy2, Pid, Alloc} - end - end - end, fun queue:join/2, Mixed, Sleepy, queue:new(), Req). - -free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit, AnaInit, Req) -> - case Hylomorphism(Mixed, CataInit, AnaInit) of - empty -> - {AnaInit, Mixed, Req}; - {skip, CataInit1, AnaInit1} -> - free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit1, - AnaInit1, Req); - {value, CataInit1, Pid, Alloc} -> - Mixed1 = dict:erase(Pid, Mixed), - ok = set_queue_mode(Callbacks, Pid, disk), - case Req > Alloc of - true -> free_from(Callbacks, Hylomorphism, BaseCase, Mixed1, - CataInit1, AnaInit, Req - Alloc); - false -> {BaseCase(CataInit1, AnaInit), Mixed1, Req - Alloc} - end - end. - -free_upto(Pid, Req, State = #state { available_tokens = Avail, - mixed_queues = Mixed, - callbacks = Callbacks, - lowrate = Lazy, - hibernate = Sleepy, - unevictable = Unevictable }) - when Req > Avail -> - Unevictable1 = sets:add_element(Pid, Unevictable), - {Sleepy1, SleepySum} = tidy_and_sum_sleepy(Unevictable1, Sleepy, Mixed), - case Req > Avail + SleepySum of - true -> %% not enough in sleepy, have a look in lazy too - {Lazy1, LazySum} = tidy_and_sum_lazy(Unevictable1, Lazy, Mixed), - case Req > Avail + SleepySum + LazySum of - true -> %% can't free enough, just return tidied state - State #state { lowrate = Lazy1, hibernate = Sleepy1 }; - false -> %% need to free all of sleepy, and some of lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, - Sleepy1, Mixed, Req), - {Lazy2, Mixed2, ReqRem1} = - free_upto_lazy(Unevictable1, Callbacks, - Lazy1, Mixed1, ReqRem), - %% ReqRem1 will be <= 0 because it's - %% likely we'll have freed more than we - %% need, thus Req - ReqRem1 is total freed - State #state { available_tokens = Avail + (Req - ReqRem1), - mixed_queues = Mixed2, lowrate = Lazy2, - hibernate = Sleepy2 } - end; - false -> %% enough available in sleepy, don't touch lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, Sleepy1, Mixed, Req), - State #state { available_tokens = Avail + (Req - ReqRem), - mixed_queues = Mixed1, hibernate = Sleepy2 } - end; -free_upto(_Pid, _Req, State) -> - State. diff --git a/src/rabbit_queue_prefetcher.erl b/src/rabbit_queue_prefetcher.erl deleted file mode 100644 index c847848d..00000000 --- a/src/rabbit_queue_prefetcher.erl +++ /dev/null @@ -1,258 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_prefetcher). - --behaviour(gen_server2). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([publish/2, drain/1, drain_and_stop/1]). - --include("rabbit.hrl"). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(pstate, - { msg_buf, - buf_length, - target_count, - fetched_count, - queue, - queue_mref - }). - -%% The design of the prefetcher is based on the following: -%% -%% a) It must issue low-priority (-ve) requests to the disk queue for -%% the next message. -%% b) If the prefetcher is empty and the amqqueue_process -%% (mixed_queue) asks it for a message, it must exit immediately, -%% telling the mixed_queue that it is empty so that the mixed_queue -%% can then take the more efficient path and communicate with the -%% disk_queue directly -%% c) No message can accidentally be delivered twice, or lost -%% d) The prefetcher must only cause load when the disk_queue is -%% otherwise idle, and must not worsen performance in a loaded -%% situation. -%% -%% As such, it's a little tricky. It must never issue a call to the -%% disk_queue - if it did, then that could potentially block, thus -%% causing pain to the mixed_queue that needs fast answers as to -%% whether the prefetcher has prefetched content or not. It behaves as -%% follows: -%% -%% 1) disk_queue:prefetch(Q) -%% This is a low priority cast -%% -%% 2) The disk_queue may pick up the cast, at which point it'll read -%% the next message and invoke prefetcher:publish(Msg) - normal -%% priority cast. Note that in the mean time, the mixed_queue could -%% have come along, found the prefetcher empty, asked it to -%% exit. This means the effective "reply" from the disk_queue will -%% go no where. As a result, the disk_queue must perform no -%% modification to the status of the message *or the queue* - do -%% not mark the message delivered, and do not advance the queue. If -%% it did advance the queue and the msg was then lost, then the -%% queue would have lost a msg that the mixed_queue would not pick -%% up. -%% -%% 3) The prefetcher hopefully receives the call from -%% prefetcher:publish(Msg). It replies immediately, and then adds -%% to its internal queue. A cast is not sufficient here because the -%% mixed_queue could come along, drain the prefetcher, thus -%% catching the msg just sent by the disk_queue and then call -%% disk_queue:deliver(Q) which is normal priority call, which could -%% overtake a reply cast from the prefetcher to the disk queue, -%% which would result in the same message being delivered -%% twice. Thus when the disk_queue calls prefetcher:publish(Msg), -%% it is briefly blocked. However, a) the prefetcher replies -%% immediately, and b) the prefetcher should never have more than -%% one item in its mailbox anyway, so this should not cause a -%% problem to the disk_queue. -%% -%% 4) The disk_queue receives the reply, marks the msg at the head of -%% the queue Q as delivered, and advances the Q to the next msg. -%% -%% 5) If the prefetcher has not met its target then it goes back to -%% 1). Otherwise it just sits and waits for the mixed_queue to -%% drain it. -%% -%% Now at some point, the mixed_queue will come along and will call -%% prefetcher:drain() - normal priority call. The prefetcher then -%% replies with its internal queue and the length of that queue. If -%% the prefetch target was reached, the prefetcher stops normally at -%% this point. If it hasn't been reached, then the prefetcher -%% continues to hang around (it almost certainly has issued a -%% disk_queue:prefetch(Q) cast and is waiting for a reply from the -%% disk_queue). -%% -%% If the mixed_queue calls prefetcher:drain() and the prefetcher's -%% internal queue is empty then the prefetcher replies with 'empty', -%% and it exits. This informs the mixed_queue that it should from now -%% on talk directly with the disk_queue and not via the -%% prefetcher. This is more efficient and the mixed_queue will use -%% normal priority blocking calls to the disk_queue and thus get -%% better service that way. -%% -%% The prefetcher may at this point have issued a -%% disk_queue:prefetch(Q) cast which has not yet been picked up by the -%% disk_queue. This msg won't go away and the disk_queue will -%% eventually find it. However, when it does, it'll simply read the -%% next message from the queue (which could now be empty), possibly -%% populate the cache (no harm done) and try and call -%% prefetcher:publish(Msg) which will result in an error, which the -%% disk_queue catches, as the publish call is to a non-existant -%% process. However, the state of the queue and the state of the -%% message has not been altered so the mixed_queue will be able to -%% fetch this message as if it had never been prefetched. -%% -%% The only point at which the queue is advanced and the message -%% marked as delivered is when the prefetcher replies to the publish -%% call. At this point the message has been received by the prefetcher -%% and so we guarantee it will be passed to the mixed_queue when the -%% mixed_queue tries to drain the prefetcher. We must therefore ensure -%% that this msg can't also be delivered to the mixed_queue directly -%% by the disk_queue through the mixed_queue calling -%% disk_queue:deliver(Q) which is why the prefetcher:publish function -%% is a call and not a cast, thus blocking the disk_queue. -%% -%% Finally, the prefetcher is only created when the mixed_queue is -%% operating in mixed mode and it sees that the next N messages are -%% all on disk, and the queue process is about to hibernate. During -%% this phase, the mixed_queue can be asked to go back to disk_only -%% mode. When this happens, it calls prefetcher:drain_and_stop() which -%% behaves like two consecutive calls to drain() - i.e. replies with -%% all prefetched messages and causes the prefetcher to exit. -%% -%% Note there is a flaw here in that we end up marking messages which -%% have come through the prefetcher as delivered even if they don't -%% get delivered (e.g. prefetcher fetches them, then broker -%% dies). However, the alternative is that the mixed_queue must do a -%% call to the disk_queue when it effectively passes them out to the -%% rabbit_writer. This would hurt performance, and even at that stage, -%% we have no guarantee that the message will really go out of the -%% socket. What we do still have is that messages which have the -%% redelivered bit set false really are guaranteed to have not been -%% delivered already. In theory, it's possible that the disk_queue -%% calls prefetcher:publish, blocks waiting for the reply. The -%% prefetcher grabs the message, is drained, the message goes out of -%% the socket and is delivered. The broker then crashes before the -%% disk_queue processes the reply from the prefetcher, thus the fact -%% the message has been delivered is not recorded. However, this can -%% only affect a single message at a time. I.e. there is a tiny chance -%% that the first message delivered on queue recovery that has the -%% redelivery bit set false, has in fact been delivered before. - -start_link(Queue, Count) -> - gen_server2:start_link(?MODULE, [Queue, Count, self()], []). - -publish(Prefetcher, Obj = { #basic_message {}, _Size, _IsDelivered, - _AckTag, _Remaining }) -> - gen_server2:call(Prefetcher, {publish, Obj}, infinity); -publish(Prefetcher, empty) -> - gen_server2:call(Prefetcher, publish_empty, infinity). - -drain(Prefetcher) -> - gen_server2:call(Prefetcher, drain, infinity). - -drain_and_stop(Prefetcher) -> - gen_server2:call(Prefetcher, drain_and_stop, infinity). - -init([Q, Count, QPid]) -> - %% link isn't enough because the signal will not appear if the - %% queue exits normally. Thus have to use monitor. - MRef = erlang:monitor(process, QPid), - State = #pstate { msg_buf = queue:new(), - buf_length = 0, - target_count = Count, - fetched_count = 0, - queue = Q, - queue_mref = MRef - }, - ok = rabbit_disk_queue:prefetch(Q), - {ok, State, infinity, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({publish, { Msg = #basic_message {}, - _Size, IsDelivered, AckTag, _Remaining }}, - DiskQueue, State = - #pstate { fetched_count = Fetched, target_count = Target, - msg_buf = MsgBuf, buf_length = Length, queue = Q - }) -> - gen_server2:reply(DiskQueue, ok), - Timeout = if Fetched + 1 == Target -> hibernate; - true -> ok = rabbit_disk_queue:prefetch(Q), - infinity - end, - MsgBuf1 = queue:in({Msg, IsDelivered, AckTag}, MsgBuf), - {noreply, State #pstate { fetched_count = Fetched + 1, - buf_length = Length + 1, - msg_buf = MsgBuf1 }, Timeout}; -handle_call(publish_empty, _From, State) -> - %% Very odd. This could happen if the queue is deleted or purged - %% and the mixed queue fails to shut us down. - {reply, ok, State, hibernate}; -handle_call(drain, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain, _From, State = #pstate { fetched_count = Count, - target_count = Count, - msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length, finished}, State}; -handle_call(drain, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {reply, {MsgBuf, Length, continuing}, - State #pstate { msg_buf = queue:new(), buf_length = 0 }, infinity}; -handle_call(drain_and_stop, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain_and_stop, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length}, State}. - -handle_cast(Msg, State) -> - exit({unexpected_message_cast_to_prefetcher, Msg, State}). - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #pstate { queue_mref = MRef }) -> - %% this is the amqqueue_process going down, so we should go down - %% too - {stop, normal, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index f6d42e7c..e5100ccd 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -31,9 +31,7 @@ -module(rabbit_tests). --compile(export_all). - --export([all_tests/0, test_parsing/0, test_disk_queue/0]). +-export([all_tests/0, test_parsing/0]). %% Exported so the hook mechanism can call back -export([handle_hook/3, bad_handle_hook/3, extra_arg_hook/5]). @@ -50,7 +48,6 @@ test_content_prop_roundtrip(Datum, Binary) -> Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion all_tests() -> - passed = test_disk_queue(), passed = test_priority_queue(), passed = test_parsing(), passed = test_topic_matching(), @@ -78,8 +75,7 @@ test_priority_queue() -> %% 1-element priority Q Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), + {true, false, 1, [{1, foo}], [foo]} = test_priority_queue(Q1), %% 2-element same-priority Q Q2 = priority_queue:in(bar, 1, Q1), @@ -95,42 +91,6 @@ test_priority_queue() -> Q4 = priority_queue:in(foo, -1, priority_queue:new()), {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - passed. priority_queue_in_all(Q, L) -> @@ -141,6 +101,7 @@ priority_queue_out_all(Q) -> {empty, _} -> []; {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] end. + test_priority_queue(Q) -> {priority_queue:is_queue(Q), priority_queue:is_empty(Q), @@ -447,17 +408,19 @@ test_cluster_management() -> end, ClusteringSequence), - %% convert a disk node into a ram node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(start_app, []), ok = control_action(stop_app, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), - %% join a non-existing cluster as a ram node + %% attempt to join a non-existing cluster as a ram node ok = control_action(reset, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {unable_to_contact_cluster_nodes, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), SecondaryNode = rabbit_misc:localnode(hare), case net_adm:ping(SecondaryNode) of @@ -473,12 +436,11 @@ test_cluster_management2(SecondaryNode) -> NodeS = atom_to_list(node()), SecondaryNodeS = atom_to_list(SecondaryNode), - %% make a disk node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), + {error, {unable_to_join_cluster, _, _}} = + control_action(cluster, [SecondaryNodeS]), %% join cluster as a ram node ok = control_action(reset, []), @@ -491,21 +453,21 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% join non-existing cluster as a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to join non-existing cluster as a ram node + {error, _} = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), + %% turn ram node into disk node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS, NodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% convert a disk node into a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to convert a disk node into a ram node + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn a disk node into a ram node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), @@ -780,503 +742,3 @@ bad_handle_hook(_, _, _) -> bad:bad(). extra_arg_hook(Hookname, Handler, Args, Extra1, Extra2) -> handle_hook(Hookname, Handler, {Args, Extra1, Extra2}). - -test_disk_queue() -> - rdq_stop(), - rdq_virgin(), - passed = rdq_stress_gc(5000), - passed = rdq_test_startup_with_queue_gaps(), - passed = rdq_test_redeliver(), - passed = rdq_test_purge(), - passed = rdq_test_mixed_queue_modes(), - passed = rdq_test_mode_conversion_mid_txn(), - passed = rdq_test_disk_queue_modes(), - rdq_virgin(), - passed. - -benchmark_disk_queue() -> - rdq_stop(), - % unicode chars are supported properly from r13 onwards - io:format("Msg Count\t| Msg Size\t| Queue Count\t| Startup mu s\t| Publish mu s\t| Pub mu s/msg\t| Pub mu s/byte\t| Deliver mu s\t| Del mu s/msg\t| Del mu s/byte~n", []), - [begin rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSize), - timer:sleep(1000) end || % 1000 milliseconds - MsgSize <- [512, 8192, 32768, 131072], - Qs <- [[1], lists:seq(1,10)], %, lists:seq(1,100), lists:seq(1,1000)], - MsgCount <- [1024, 4096, 16384] - ], - rdq_virgin(), - ok = control_action(stop_app, []), - ok = control_action(start_app, []), - passed. - -rdq_message(MsgId, MsgBody, IsPersistent) -> - rabbit_basic:message(x, <<>>, [], MsgBody, MsgId, IsPersistent). - -rdq_match_message( - #basic_message { guid = MsgId, content = - #content { payload_fragments_rev = [MsgBody] }}, - MsgId, MsgBody, Size) when size(MsgBody) =:= Size -> - ok. - -rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSizeBytes) -> - Startup = rdq_virgin(), - rdq_start(), - QCount = length(Qs), - Msg = <<0:(8*MsgSizeBytes)>>, - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - {Publish, ok} = - timer:tc(?MODULE, rdq_time_commands, - [[fun() -> [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) - || N <- List, _ <- Qs] end, - fun() -> [ok = rabbit_disk_queue:tx_commit(Q, CommitList, []) - || Q <- Qs] end - ]]), - {Deliver, ok} = - timer:tc( - ?MODULE, rdq_time_commands, - [[fun() -> [begin SeqIds = - [begin - Remaining = MsgCount - N, - {Message, _TSize, false, SeqId, - Remaining} = rabbit_disk_queue:deliver(Q), - ok = rdq_match_message(Message, N, Msg, MsgSizeBytes), - SeqId - end || N <- List], - ok = rabbit_disk_queue:tx_commit(Q, [], SeqIds) - end || Q <- Qs] - end]]), - io:format(" ~15.10B| ~14.10B| ~14.10B| ~14.1f| ~14.1f| ~14.6f| ~14.10f| ~14.1f| ~14.6f| ~14.10f~n", - [MsgCount, MsgSizeBytes, QCount, float(Startup), - float(Publish), (Publish / (MsgCount * QCount)), - (Publish / (MsgCount * QCount * MsgSizeBytes)), - float(Deliver), (Deliver / (MsgCount * QCount)), - (Deliver / (MsgCount * QCount * MsgSizeBytes))]), - rdq_stop(). - -% we know each file is going to be 1024*1024*10 bytes in size (10MB), -% so make sure we have several files, and then keep punching holes in -% a reasonably sensible way. -rdq_stress_gc(MsgCount) -> - rdq_virgin(), - rdq_start(), - MsgSizeBytes = 256*1024, - Msg = <<0:(8*MsgSizeBytes)>>, % 256KB - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- List], - rabbit_disk_queue:tx_commit(q, CommitList, []), - StartChunk = round(MsgCount / 20), % 5% - AckList = - lists:foldl( - fun (E, Acc) -> - case lists:member(E, Acc) of - true -> Acc; - false -> [E|Acc] - end - end, [], lists:flatten( - lists:reverse( - [ lists:seq(N, MsgCount, N) - || N <- lists:seq(1, round(MsgCount / 2), 1) - ]))), - {Start, End} = lists:split(StartChunk, AckList), - AckList2 = End ++ Start, - MsgIdToSeqDict = - lists:foldl( - fun (MsgId, Acc) -> - Remaining = MsgCount - MsgId, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, MsgId, Msg, MsgSizeBytes), - dict:store(MsgId, SeqId, Acc) - end, dict:new(), List), - %% we really do want to ack each of this individually - [begin {ok, SeqId} = dict:find(MsgId, MsgIdToSeqDict), - rabbit_disk_queue:ack(q, [SeqId]) - end || MsgId <- AckList2], - rabbit_disk_queue:tx_commit(q, [], []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_startup_with_queue_gaps() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, true)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% ack every other message we have delivered (starting at the _first_) - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:ack(q, [SeqId2]), - false; - (_SeqId2, false) -> - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Acked every other message delivered done~n", []), - rdq_stop(), - rdq_start(), - io:format("Startup (with shuffle) done~n", []), - %% should have shuffled up. So we should now get - %% lists:seq(2,500,2) already delivered - Seqs2 = [begin - Remaining = round(Total - ((Half + N)/2)), - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(2,Half,2)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - io:format("Reread non-acked messages done~n", []), - %% and now fetch the rest - Seqs3 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1 + Half,Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - io:format("Read second half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_redeliver() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% now requeue every other message (starting at the _first_) - %% and ack the other ones - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:requeue(q, [{SeqId2, true}]), - false; - (SeqId2, false) -> - rabbit_disk_queue:ack(q, [SeqId2]), - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Redeliver and acking done~n", []), - %% we should now get the 2nd half in order, followed by - %% every-other-from-the-first-half - Seqs2 = [begin - Remaining = round(Total - N + (Half/2)), - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1+Half, Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - Seqs3 = [begin - Remaining = round((Half - N) / 2) - 1, - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1, Half, 2)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_purge() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - rabbit_disk_queue:purge(q), - io:format("Purge done~n", []), - rabbit_disk_queue:tx_commit(q, [], Seqs), - io:format("Ack first half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_new_mixed_queue(Q, Durable, Disk) -> - {ok, MS} = rabbit_mixed_queue:init(Q, Durable), - {MS1, _, _, _} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - case Disk of - true -> {ok, MS2} = rabbit_mixed_queue:to_disk_only_mode([], MS1), - MS2; - false -> MS1 - end. - -rdq_test_mixed_queue_modes() -> - rdq_virgin(), - rdq_start(), - Payload = <<0:(8*256)>>, - MS = rdq_new_mixed_queue(q, true, false), - MS2 = lists:foldl( - fun (_N, MS1) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS, lists:seq(1,10)), - MS4 = lists:foldl( - fun (_N, MS3) -> - Msg = (rabbit_basic:message(x, <<>>, [], Payload)) - #basic_message { is_persistent = true }, - {ok, MS3a} = rabbit_mixed_queue:publish(Msg, MS3), - MS3a - end, MS2, lists:seq(1,10)), - MS6 = lists:foldl( - fun (_N, MS5) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS5a} = rabbit_mixed_queue:publish(Msg, MS5), - MS5a - end, MS4, lists:seq(1,10)), - 30 = rabbit_mixed_queue:length(MS6), - io:format("Published a mixture of messages; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS6)]), - {ok, MS7} = rabbit_mixed_queue:to_disk_only_mode([], MS6), - 30 = rabbit_mixed_queue:length(MS7), - io:format("Converted to disk only mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS7)]), - {ok, MS8} = rabbit_mixed_queue:to_mixed_mode([], MS7), - 30 = rabbit_mixed_queue:length(MS8), - io:format("Converted to mixed mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS8)]), - MS10 = - lists:foldl( - fun (N, MS9) -> - Rem = 30 - N, - {{#basic_message { is_persistent = false }, - false, _AckTag, Rem}, - MS9a} = rabbit_mixed_queue:deliver(MS9), - MS9a - end, MS8, lists:seq(1,10)), - 20 = rabbit_mixed_queue:length(MS10), - io:format("Delivered initial non persistent messages~n"), - {ok, MS11} = rabbit_mixed_queue:to_disk_only_mode([], MS10), - 20 = rabbit_mixed_queue:length(MS11), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS12 = rdq_new_mixed_queue(q, true, false), - 10 = rabbit_mixed_queue:length(MS12), - io:format("Recovered queue~n"), - {MS14, AckTags} = - lists:foldl( - fun (N, {MS13, AcksAcc}) -> - Rem = 10 - N, - {{Msg = #basic_message { is_persistent = true }, - false, AckTag, Rem}, - MS13a} = rabbit_mixed_queue:deliver(MS13), - {MS13a, [{Msg, AckTag} | AcksAcc]} - end, {MS12, []}, lists:seq(1,10)), - 0 = rabbit_mixed_queue:length(MS14), - {ok, MS15} = rabbit_mixed_queue:ack(AckTags, MS14), - io:format("Delivered and acked all messages~n"), - {ok, MS16} = rabbit_mixed_queue:to_disk_only_mode([], MS15), - 0 = rabbit_mixed_queue:length(MS16), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS17 = rdq_new_mixed_queue(q, true, false), - 0 = rabbit_mixed_queue:length(MS17), - {MS17,0,0,0} = rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS17), - io:format("Recovered queue~n"), - rdq_stop(), - passed. - -rdq_test_mode_conversion_mid_txn() -> - Payload = <<0:(8*256)>>, - MsgIdsA = lists:seq(0,9), - MsgsA = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsA ], - MsgIdsB = lists:seq(10,20), - MsgsB = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsB ], - - rdq_virgin(), - rdq_start(), - MS0 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS0, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, commit), - - rdq_stop_virgin_start(), - MS1 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS1, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, cancel), - - - rdq_stop_virgin_start(), - MS2 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS2, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, commit), - - rdq_stop_virgin_start(), - MS3 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS3, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, cancel), - - rdq_stop(), - passed. - -rdq_tx_publish_mixed_alter_commit_get(MS0, MsgsA, MsgsB, ChangeFun, CommitOrCancel) -> - 0 = rabbit_mixed_queue:length(MS0), - MS2 = lists:foldl( - fun (Msg, MS1) -> - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS0, MsgsA), - Len0 = length(MsgsA), - Len0 = rabbit_mixed_queue:length(MS2), - MS4 = lists:foldl( - fun (Msg, MS3) -> - {ok, MS3a} = rabbit_mixed_queue:tx_publish(Msg, MS3), - MS3a - end, MS2, MsgsB), - Len0 = rabbit_mixed_queue:length(MS4), - {ok, MS5} = ChangeFun(MsgsB, MS4), - Len0 = rabbit_mixed_queue:length(MS5), - {ok, MS9} = - case CommitOrCancel of - commit -> - {ok, MS6} = rabbit_mixed_queue:tx_commit(MsgsB, [], MS5), - Len1 = Len0 + length(MsgsB), - Len1 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len1 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA ++ MsgsB), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8); - cancel -> - {ok, MS6} = rabbit_mixed_queue:tx_cancel(MsgsB, MS5), - Len0 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len0 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8) - end, - 0 = rabbit_mixed_queue:length(MS9), - Msg = rdq_message(0, <<0:256>>, false), - {ok, AckTag, MS10} = rabbit_mixed_queue:publish_delivered(Msg, MS9), - {ok,MS11} = rabbit_mixed_queue:ack([{Msg, AckTag}], MS10), - 0 = rabbit_mixed_queue:length(MS11), - passed. - -rdq_test_disk_queue_modes() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half1 = lists:seq(1,round(Total/2)), - Half2 = lists:seq(1 + round(Total/2), Total), - CommitHalf1 = lists:zip(Half1, lists:duplicate(round(Total/2), false)), - CommitHalf2 = lists:zip(Half2, lists:duplicate - (Total - round(Total/2), false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half1], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf1, []), - io:format("Publish done~n", []), - ok = rabbit_disk_queue:to_disk_only_mode(), - io:format("To Disk Only done~n", []), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half2], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf2, []), - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half1], - io:format("Deliver first half done~n", []), - ok = rabbit_disk_queue:to_ram_disk_mode(), - io:format("To RAM Disk done~n", []), - Seqs2 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half2], - io:format("Deliver second half done~n", []), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs), - ok = rabbit_disk_queue:to_disk_only_mode(), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs2), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_time_commands(Funcs) -> - lists:foreach(fun (F) -> F() end, Funcs). - -rdq_virgin() -> - {Micros, {ok, _}} = - timer:tc(rabbit_disk_queue, start_link, []), - ok = rabbit_disk_queue:stop_and_obliterate(), - timer:sleep(1000), - Micros. - -rdq_start() -> - {ok, _} = rabbit_disk_queue:start_link(), - ok = rabbit_disk_queue:to_ram_disk_mode(), - ok. - -rdq_stop() -> - rabbit_disk_queue:stop(), - timer:sleep(1000). - -rdq_stop_virgin_start() -> - rdq_stop(), - rdq_virgin(), - rdq_start(). -- cgit v1.2.1 From 3c203b32ea6b00a21e26711bf831174bee512f78 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 17 Aug 2009 17:50:24 +0100 Subject: reversed everything but the extension of the rabbit_misc api. To QA this, find the diff between this and the default rev a53ac6a45325 --- Makefile | 7 +- include/rabbit.hrl | 8 +- scripts/rabbitmq-server | 3 +- scripts/rabbitmq-server.bat | 3 +- scripts/rabbitmq-service.bat | 3 +- src/priority_queue.erl | 42 +- src/rabbit.erl | 16 +- src/rabbit_alarm.erl | 52 +- src/rabbit_amqqueue.erl | 88 +- src/rabbit_amqqueue_process.erl | 568 +++++------ src/rabbit_basic.erl | 17 +- src/rabbit_channel.erl | 7 +- src/rabbit_control.erl | 22 +- src/rabbit_disk_queue.erl | 1973 ------------------------------------- src/rabbit_guid.erl | 22 +- src/rabbit_memsup.erl | 126 --- src/rabbit_memsup_darwin.erl | 102 -- src/rabbit_memsup_linux.erl | 99 +- src/rabbit_mixed_queue.erl | 596 ----------- src/rabbit_mnesia.erl | 93 +- src/rabbit_persister.erl | 523 ++++++++++ src/rabbit_queue_mode_manager.erl | 496 ---------- src/rabbit_queue_prefetcher.erl | 258 ----- src/rabbit_tests.erl | 582 +---------- 24 files changed, 993 insertions(+), 4713 deletions(-) delete mode 100644 src/rabbit_disk_queue.erl delete mode 100644 src/rabbit_memsup.erl delete mode 100644 src/rabbit_memsup_darwin.erl delete mode 100644 src/rabbit_mixed_queue.erl create mode 100644 src/rabbit_persister.erl delete mode 100644 src/rabbit_queue_mode_manager.erl delete mode 100644 src/rabbit_queue_prefetcher.erl diff --git a/Makefile b/Makefile index 05464ca1..c3b0c598 100644 --- a/Makefile +++ b/Makefile @@ -20,10 +20,10 @@ PYTHON=python ifndef USE_SPECS # our type specs rely on features / bug fixes in dialyzer that are -# only available in R13B upwards (R13B is eshell 5.7.1) +# only available in R12B-3 upwards # # NB: the test assumes that version number will only contain single digits -USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.0" ]; then echo "true"; else echo "false"; fi) +USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.6.2" ]; then echo "true"; else echo "false"; fi) endif #other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests @@ -101,8 +101,7 @@ run-tests: all start-background-node: $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server ; sleep 1 + ./scripts/rabbitmq-server -detached; sleep 1 start-rabbit-on-node: all echo "rabbit:start()." | $(ERL_CALL) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 0ba31cb5..784c21b3 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -62,10 +62,7 @@ -record(listener, {node, protocol, host, port}). --record(basic_message, {exchange_name, routing_key, content, - guid, is_persistent}). - --record(dq_msg_loc, {queue_and_seq_id, is_delivered, msg_id}). +-record(basic_message, {exchange_name, routing_key, content, persistent_key}). -record(delivery, {mandatory, immediate, txn, sender, message}). @@ -137,8 +134,7 @@ #basic_message{exchange_name :: exchange_name(), routing_key :: routing_key(), content :: content(), - guid :: guid(), - is_persistent :: bool()}). + persistent_key :: maybe(pkey())}). -type(message() :: basic_message()). -type(delivery() :: #delivery{mandatory :: bool(), diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index f802ec4c..547220b4 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -105,9 +105,8 @@ exec erl \ -os_mon start_memsup false \ -os_mon start_os_sup false \ -os_mon memsup_system_only true \ - -os_mon system_memory_high_watermark 0.8 \ + -os_mon system_memory_high_watermark 0.95 \ -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - -mnesia dump_log_write_threshold 10000 \ ${RABBITMQ_CLUSTER_CONFIG_OPTION} \ ${RABBITMQ_SERVER_START_ARGS} \ "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 3b6e4938..b4868841 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -134,9 +134,8 @@ if exist "%RABBITMQ_EBIN_ROOT%\rabbit.boot" ( -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat index 82aa4d5c..29be1742 100755 --- a/scripts/rabbitmq-service.bat +++ b/scripts/rabbitmq-service.bat @@ -175,9 +175,8 @@ set ERLANG_SERVICE_ARGUMENTS= ^ -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 0c777471..732757c4 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -55,8 +55,7 @@ -module(priority_queue). --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). +-export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, out/1]). %%---------------------------------------------------------------------------- @@ -73,8 +72,7 @@ -spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). -spec(in/2 :: (any(), pqueue()) -> pqueue()). -spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {(empty | {value, any()}), pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). +-spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). -endif. @@ -149,42 +147,6 @@ out({pqueue, [{P, Q} | Queues]}) -> end, {R, NewQ}. -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - r2f([]) -> {queue, [], []}; r2f([_] = R) -> {queue, [], R}; r2f([X,Y]) -> {queue, [X], [Y]}; diff --git a/src/rabbit.erl b/src/rabbit.erl index 88c60eb9..b0d62b5a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -139,8 +139,6 @@ start(normal, []) -> {ok, MemoryAlarms} = application:get_env(memory_alarms), ok = rabbit_alarm:start(MemoryAlarms), - - ok = start_child(rabbit_queue_mode_manager), ok = rabbit_binary_generator: check_empty_content_body_frame_size(), @@ -148,19 +146,15 @@ start(normal, []) -> ok = start_child(rabbit_router), ok = start_child(rabbit_node_monitor) end}, - {"disk queue", - fun () -> - ok = start_child(rabbit_disk_queue) - end}, {"recovery", fun () -> ok = maybe_insert_default_data(), ok = rabbit_exchange:recover(), - {ok, DurableQueues} = rabbit_amqqueue:recover(), - DurableQueueNames = - sets:from_list([ Q #amqqueue.name || Q <- DurableQueues ]), - ok = rabbit_disk_queue:delete_non_durable_queues( - DurableQueueNames) + ok = rabbit_amqqueue:recover() + end}, + {"persister", + fun () -> + ok = start_child(rabbit_persister) end}, {"guid generator", fun () -> diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 309c9a0e..21999f16 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -41,7 +41,7 @@ -define(MEMSUP_CHECK_INTERVAL, 1000). %% OSes on which we know memory alarms to be trustworthy --define(SUPPORTED_OS, [{unix, linux}, {unix, darwin}]). +-define(SUPPORTED_OS, [{unix, linux}]). -record(alarms, {alertees, system_memory_high_watermark = false}). @@ -136,35 +136,33 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- start_memsup() -> - {Mod, Args} = - case os:type() of - %% memsup doesn't take account of buffers or cache when - %% considering "free" memory - therefore on Linux we can - %% get memory alarms very easily without any pressure - %% existing on memory at all. Therefore we need to use - %% our own simple memory monitor. - %% - {unix, linux} -> {rabbit_memsup, [rabbit_memsup_linux]}; - {unix, darwin} -> {rabbit_memsup, [rabbit_memsup_darwin]}; - - %% Start memsup programmatically rather than via the - %% rabbitmq-server script. This is not quite the right - %% thing to do as os_mon checks to see if memsup is - %% available before starting it, but as memsup is - %% available everywhere (even on VXWorks) it should be - %% ok. - %% - %% One benefit of the programmatic startup is that we - %% can add our alarm_handler before memsup is running, - %% thus ensuring that we notice memory alarms that go - %% off on startup. - %% - _ -> {memsup, []} - end, + Mod = case os:type() of + %% memsup doesn't take account of buffers or cache when + %% considering "free" memory - therefore on Linux we can + %% get memory alarms very easily without any pressure + %% existing on memory at all. Therefore we need to use + %% our own simple memory monitor. + %% + {unix, linux} -> rabbit_memsup_linux; + + %% Start memsup programmatically rather than via the + %% rabbitmq-server script. This is not quite the right + %% thing to do as os_mon checks to see if memsup is + %% available before starting it, but as memsup is + %% available everywhere (even on VXWorks) it should be + %% ok. + %% + %% One benefit of the programmatic startup is that we + %% can add our alarm_handler before memsup is running, + %% thus ensuring that we notice memory alarms that go + %% off on startup. + %% + _ -> memsup + end, %% This is based on os_mon:childspec(memsup, true) {ok, _} = supervisor:start_child( os_mon_sup, - {memsup, {Mod, start_link, Args}, + {memsup, {Mod, start_link, []}, permanent, 2000, worker, [Mod]}), ok. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 62ea465d..4903c2c5 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,6 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/3, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -63,7 +62,7 @@ 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). -spec(start/0 :: () -> 'ok'). --spec(recover/0 :: () -> {'ok', [amqqueue()]}). +-spec(recover/0 :: () -> 'ok'). -spec(declare/4 :: (queue_name(), bool(), bool(), amqp_table()) -> amqqueue()). -spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). @@ -102,13 +101,10 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). --spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). --spec(report_memory/1 :: (pid()) -> 'ok'). -endif. @@ -123,42 +119,37 @@ start() -> ok. recover() -> - {ok, DurableQueues} = recover_durable_queues(), - {ok, DurableQueues}. + ok = recover_durable_queues(), + ok. recover_durable_queues() -> Node = node(), - DurableQueues = - lists:foldl( - fun (RecoveredQ, Acc) -> - Q = start_queue_process(RecoveredQ), - %% We need to catch the case where a client connected to - %% another node has deleted the queue (and possibly - %% re-created it). - case rabbit_misc:execute_mnesia_transaction( - fun () -> - Match = - mnesia:match_object( - rabbit_durable_queue, RecoveredQ, read), - case Match of - [_] -> ok = store_queue(Q), - true; - [] -> false - end - end) of - true -> [Q|Acc]; - false -> exit(Q#amqqueue.pid, shutdown), - Acc - end - end, [], - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end)), - {ok, DurableQueues}. + lists:foreach( + fun (RecoveredQ) -> + Q = start_queue_process(RecoveredQ), + %% We need to catch the case where a client connected to + %% another node has deleted the queue (and possibly + %% re-created it). + case rabbit_misc:execute_mnesia_transaction( + fun () -> case mnesia:match_object( + rabbit_durable_queue, RecoveredQ, read) of + [_] -> ok = store_queue(Q), + true; + [] -> false + end + end) of + true -> ok; + false -> exit(Q#amqqueue.pid, shutdown) + end + end, + %% TODO: use dirty ops instead + rabbit_misc:execute_mnesia_transaction( + fun () -> + qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} + <- mnesia:table(rabbit_durable_queue), + node(Pid) == Node])) + end)), + ok. declare(QueueName, Durable, AutoDelete, Args) -> Q = start_queue_process(#amqqueue{name = QueueName, @@ -225,23 +216,6 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). -set_mode_pin(VHostPath, Queue, Disk) - when is_binary(VHostPath) andalso is_binary(Queue) -> - with(rabbit_misc:r(VHostPath, queue, Queue), - fun(Q) -> case Disk of - true -> rabbit_queue_mode_manager:pin_to_disk - (Q #amqqueue.pid); - false -> rabbit_queue_mode_manager:unpin_from_disk - (Q #amqqueue.pid) - end - end). - -set_mode(QPid, Mode) -> - gen_server2:pcast(QPid, 10, {set_mode, Mode}). - -report_memory(QPid) -> - gen_server2:cast(QPid, report_memory). - info(#amqqueue{ pid = QPid }) -> gen_server2:pcall(QPid, 9, info, infinity). @@ -329,10 +303,10 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> infinity). notify_sent(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {notify_sent, ChPid}). + gen_server2:cast(QPid, {notify_sent, ChPid}). unblock(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {unblock, ChPid}). + gen_server2:cast(QPid, {unblock, ChPid}). internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 14a0370d..fe2e8509 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -38,12 +38,10 @@ -define(UNSENT_MESSAGE_LIMIT, 100). -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds -export([start_link/1]). --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1]). +-export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]). -import(queue). -import(erlang). @@ -54,12 +52,10 @@ owner, exclusive_consumer, has_had_consumers, - mixed_state, next_msg_id, + message_buffer, active_consumers, - blocked_consumers, - memory_report_timer - }). + blocked_consumers}). -record(consumer, {tag, ack_required}). @@ -88,9 +84,7 @@ acks_uncommitted, consumers, transactions, - memory, - mode - ]). + memory]). %%---------------------------------------------------------------------------- @@ -99,35 +93,24 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable }) -> +init(Q) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), - ok = rabbit_queue_mode_manager:register - (self(), false, rabbit_amqqueue, set_mode, [self()]), - {ok, MS} = rabbit_mixed_queue:init(QName, Durable), - State = #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - mixed_state = MS, - next_msg_id = 1, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - memory_report_timer = undefined - }, - %% first thing we must do is report_memory which will clear out - %% the 'undefined' values in gain and loss in mixed_queue state - {ok, start_memory_timer(State), hibernate, + {ok, #q{q = Q, + owner = none, + exclusive_consumer = none, + has_had_consumers = false, + next_msg_id = 1, + message_buffer = queue:new(), + active_consumers = queue:new(), + blocked_consumers = queue:new()}, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. terminate(_Reason, State) -> %% FIXME: How do we cancel active subscriptions? QName = qname(State), - NewState = - lists:foldl(fun (Txn, State1) -> - rollback_transaction(Txn, State1) - end, State, all_tx()), - rabbit_mixed_queue:delete_queue(NewState #q.mixed_state), - stop_memory_timer(NewState), + lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, + all_tx()), + ok = purge_message_buffer(QName, State#q.message_buffer), ok = rabbit_amqqueue:internal_delete(QName). code_change(_OldVsn, State, _Extra) -> @@ -135,24 +118,9 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- -reply(Reply, NewState) -> - {reply, Reply, start_memory_timer(NewState), hibernate}. +reply(Reply, NewState) -> {reply, Reply, NewState, hibernate}. -noreply(NewState) -> - {noreply, start_memory_timer(NewState), hibernate}. - -start_memory_timer(State = #q { memory_report_timer = undefined }) -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_amqqueue, report_memory, [self()]), - report_memory(false, State #q { memory_report_timer = TRef }); -start_memory_timer(State) -> - State. - -stop_memory_timer(State = #q { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #q { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #q { memory_report_timer = undefined }. +noreply(NewState) -> {noreply, NewState, hibernate}. lookup_ch(ChPid) -> case get({ch, ChPid}) of @@ -199,11 +167,12 @@ record_current_channel_tx(ChPid, Txn) -> %% that wasn't happening already) store_ch_record((ch_record(ChPid))#cr{txn = Txn}). -deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers, - next_msg_id = NextId}) -> +deliver_immediately(Message, Delivered, + State = #q{q = #amqqueue{name = QName}, + active_consumers = ActiveConsumers, + blocked_consumers = BlockedConsumers, + next_msg_id = NextId}) -> + ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), case queue:out(ActiveConsumers) of {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, ack_required = AckRequired}}}, @@ -211,21 +180,15 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, C = #cr{limiter_pid = LimiterPid, unsent_message_count = Count, unacked_messages = UAM} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of + case rabbit_limiter:can_send(LimiterPid, self(), AckRequired) of true -> - {{Msg, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Msg]), rabbit_channel:deliver( ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, IsDelivered, Msg}), - NewUAM = - case AckRequired of - true -> dict:store(NextId, {Msg, AckTag}, UAM); - false -> UAM - end, + {QName, self(), NextId, Delivered, Message}), + NewUAM = case AckRequired of + true -> dict:store(NextId, Message, UAM); + false -> UAM + end, NewC = C#cr{unsent_message_count = Count + 1, unacked_messages = NewUAM}, store_ch_record(NewC), @@ -241,113 +204,54 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, {ActiveConsumers1, queue:in(QEntry, BlockedConsumers1)} end, - State2 = State1 #q { - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers, - next_msg_id = NextId + 1 - }, - deliver_queue(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> + {offered, AckRequired, + State#q{active_consumers = NewActiveConsumers, + blocked_consumers = NewBlockedConsumers, + next_msg_id = NextId + 1}}; + false -> store_ch_record(C#cr{is_limit_active = true}), {NewActiveConsumers, NewBlockedConsumers} = move_consumers(ChPid, ActiveConsumers, BlockedConsumers), - deliver_queue( - Funs, FunAcc, + deliver_immediately( + Message, Delivered, State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} + blocked_consumers = NewBlockedConsumers}) end; {empty, _} -> - {FunAcc, State} + {not_offered, State} end. -deliver_from_queue_pred({IsEmpty, _AutoAcks}, _State) -> - not IsEmpty. -deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, - State = #q { mixed_state = MS }) -> - {{Msg, IsDelivered, AckTag, Remaining}, MS1} = - rabbit_mixed_queue:deliver(MS), - AutoAcks1 = - case AckRequired of - true -> AutoAcks; - false -> [{Msg, AckTag} | AutoAcks] - end, - {{Msg, IsDelivered, AckTag}, {0 == Remaining, AutoAcks1}, - State #q { mixed_state = MS1 }}. - -run_message_queue(State = #q { mixed_state = MS }) -> - Funs = { fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3 }, - IsEmpty = rabbit_mixed_queue:is_empty(MS), - {{_IsEmpty1, AutoAcks}, State1} = - deliver_queue(Funs, {IsEmpty, []}, State), - {ok, MS1} = - rabbit_mixed_queue:ack(AutoAcks, State1 #q.mixed_state), - State1 #q { mixed_state = MS1 }. - -attempt_immediate_delivery(none, _ChPid, Msg, State) -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1) -> - {AckTag, State2} = - case AckRequired of - true -> - {ok, AckTag1, MS} = - rabbit_mixed_queue:publish_delivered( - Msg, State1 #q.mixed_state), - {AckTag1, State1 #q { mixed_state = MS }}; - false -> - {noack, State1} - end, - {{Msg, false, AckTag}, true, State2} - end, - deliver_queue({ PredFun, DeliverFun }, false, State); -attempt_immediate_delivery(Txn, ChPid, Msg, State) -> - {ok, MS} = rabbit_mixed_queue:tx_publish(Msg, State #q.mixed_state), - record_pending_message(Txn, ChPid, Msg), - {true, State #q { mixed_state = MS }}. - -deliver_or_enqueue(Txn, ChPid, Msg, State) -> - case attempt_immediate_delivery(Txn, ChPid, Msg, State) of +attempt_delivery(none, _ChPid, Message, State) -> + case deliver_immediately(Message, false, State) of + {offered, false, State1} -> + {true, State1}; + {offered, true, State1} -> + persist_message(none, qname(State), Message), + persist_delivery(qname(State), Message, false), + {true, State1}; + {not_offered, State1} -> + {false, State1} + end; +attempt_delivery(Txn, ChPid, Message, State) -> + persist_message(Txn, qname(State), Message), + record_pending_message(Txn, ChPid, Message), + {true, State}. + +deliver_or_enqueue(Txn, ChPid, Message, State) -> + case attempt_delivery(Txn, ChPid, Message, State) of {true, NewState} -> {true, NewState}; {false, NewState} -> - %% Txn is none and no unblocked channels with consumers - {ok, MS} = rabbit_mixed_queue:publish(Msg, State #q.mixed_state), - {false, NewState #q { mixed_state = MS }} - end. - -%% all these messages have already been delivered at least once and -%% not ack'd, but need to be either redelivered or requeued -deliver_or_requeue_n([], State) -> - run_message_queue(State); -deliver_or_requeue_n(MsgsWithAcks, State) -> - Funs = { fun deliver_or_requeue_msgs_pred/2, - fun deliver_or_requeue_msgs_deliver/3 }, - {{_RemainingLengthMinusOne, AutoAcks, OutstandingMsgs}, NewState} = - deliver_queue(Funs, {length(MsgsWithAcks) - 1, [], MsgsWithAcks}, - State), - {ok, MS} = rabbit_mixed_queue:ack(AutoAcks, - NewState #q.mixed_state), - case OutstandingMsgs of - [] -> run_message_queue(NewState #q { mixed_state = MS }); - _ -> {ok, MS1} = rabbit_mixed_queue:requeue(OutstandingMsgs, MS), - NewState #q { mixed_state = MS1 } + persist_message(Txn, qname(State), Message), + NewMB = queue:in({Message, false}, NewState#q.message_buffer), + {false, NewState#q{message_buffer = NewMB}} end. -deliver_or_requeue_msgs_pred({Len, _AcksAcc, _MsgsWithAcks}, _State) -> - -1 < Len. -deliver_or_requeue_msgs_deliver( - false, {Len, AcksAcc, [(MsgAckTag = {Msg, _}) | MsgsWithAcks]}, State) -> - {{Msg, true, noack}, {Len - 1, [MsgAckTag | AcksAcc], MsgsWithAcks}, State}; -deliver_or_requeue_msgs_deliver( - true, {Len, AcksAcc, [{Msg, AckTag} | MsgsWithAcks]}, State) -> - {{Msg, true, AckTag}, {Len - 1, AcksAcc, MsgsWithAcks}, State}. +deliver_or_enqueue_n(Messages, State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(queue:join(MessageBuffer, queue:from_list(Messages)), + State). add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). @@ -381,7 +285,7 @@ possibly_unblock(State, ChPid, Update) -> move_consumers(ChPid, State#q.blocked_consumers, State#q.active_consumers), - run_message_queue( + run_poke_burst( State#q{active_consumers = NewActiveConsumers, blocked_consumers = NewBlockedeConsumers}) end @@ -398,27 +302,27 @@ handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> unacked_messages = UAM} -> erlang:demonitor(MonitorRef), erase({ch, ChPid}), - State1 = - case Txn of - none -> State; - _ -> rollback_transaction(Txn, State) - end, - State2 = - deliver_or_requeue_n( - [MsgWithAck || - {_MsgId, MsgWithAck} <- dict:to_list(UAM)], - State1 #q { + case Txn of + none -> ok; + _ -> ok = rollback_work(Txn, qname(State)), + erase_tx(Txn) + end, + NewState = + deliver_or_enqueue_n( + [{Message, true} || + {_Messsage_id, Message} <- dict:to_list(UAM)], + State#q{ exclusive_consumer = case Holder of {ChPid, _} -> none; Other -> Other end, active_consumers = remove_consumers( - ChPid, State1#q.active_consumers), + ChPid, State#q.active_consumers), blocked_consumers = remove_consumers( - ChPid, State1#q.blocked_consumers)}), - case should_auto_delete(State2) of - false -> noreply(State2); - true -> {stop, normal, State2} + ChPid, State#q.blocked_consumers)}), + case should_auto_delete(NewState) of + false -> noreply(NewState); + true -> {stop, normal, NewState} end end. @@ -441,6 +345,26 @@ check_exclusive_access(none, true, State) -> false -> in_use end. +run_poke_burst(State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(MessageBuffer, State). + +run_poke_burst(MessageBuffer, State) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> + case deliver_immediately(Message, Delivered, State) of + {offered, true, NewState} -> + persist_delivery(qname(State), Message, Delivered), + run_poke_burst(BufferTail, NewState); + {offered, false, NewState} -> + persist_auto_ack(qname(State), Message), + run_poke_burst(BufferTail, NewState); + {not_offered, NewState} -> + NewState#q{message_buffer = MessageBuffer} + end; + {empty, _} -> + State#q{message_buffer = MessageBuffer} + end. + is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso queue:is_empty(State#q.blocked_consumers). @@ -449,6 +373,62 @@ maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). qname(#q{q = #amqqueue{name = QName}}) -> QName. +persist_message(_Txn, _QName, #basic_message{persistent_key = none}) -> + ok; +persist_message(Txn, QName, Message) -> + M = Message#basic_message{ + %% don't persist any recoverable decoded properties, rebuild from properties_bin on restore + content = rabbit_binary_parser:clear_decoded_content( + Message#basic_message.content)}, + persist_work(Txn, QName, + [{publish, M, {QName, M#basic_message.persistent_key}}]). + +persist_delivery(_QName, _Message, + true) -> + ok; +persist_delivery(_QName, #basic_message{persistent_key = none}, + _Delivered) -> + ok; +persist_delivery(QName, #basic_message{persistent_key = PKey}, + _Delivered) -> + persist_work(none, QName, [{deliver, {QName, PKey}}]). + +persist_acks(Txn, QName, Messages) -> + persist_work(Txn, QName, + [{ack, {QName, PKey}} || + #basic_message{persistent_key = PKey} <- Messages, + PKey =/= none]). + +persist_auto_ack(_QName, #basic_message{persistent_key = none}) -> + ok; +persist_auto_ack(QName, #basic_message{persistent_key = PKey}) -> + %% auto-acks are always non-transactional + rabbit_persister:dirty_work([{ack, {QName, PKey}}]). + +persist_work(_Txn,_QName, []) -> + ok; +persist_work(none, _QName, WorkList) -> + rabbit_persister:dirty_work(WorkList); +persist_work(Txn, QName, WorkList) -> + mark_tx_persistent(Txn), + rabbit_persister:extend_transaction({Txn, QName}, WorkList). + +commit_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:commit_transaction/1, + Txn, QName). + +rollback_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:rollback_transaction/1, + Txn, QName). + +%% optimisation: don't do unnecessary work +%% it would be nice if this was handled by the persister +do_if_persistent(F, Txn, QName) -> + case is_tx_persistent(Txn) of + false -> ok; + true -> ok = F({Txn, QName}) + end. + lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx{ch_pid = none, @@ -470,14 +450,19 @@ all_tx_record() -> all_tx() -> [Txn || {{txn, Txn}, _} <- get()]. -record_pending_message(Txn, ChPid, Message = - #basic_message { is_persistent = IsPersistent }) -> - Tx = #tx{pending_messages = Pending, is_persistent = IsPersistentTxn } = - lookup_tx(Txn), +mark_tx_persistent(Txn) -> + Tx = lookup_tx(Txn), + store_tx(Txn, Tx#tx{is_persistent = true}). + +is_tx_persistent(Txn) -> + #tx{is_persistent = Res} = lookup_tx(Txn), + Res. + +record_pending_message(Txn, ChPid, Message) -> + Tx = #tx{pending_messages = Pending} = lookup_tx(Txn), record_current_channel_tx(ChPid, Txn), - store_tx(Txn, Tx #tx { pending_messages = [Message | Pending], - is_persistent = IsPersistentTxn orelse IsPersistent - }). + store_tx(Txn, Tx#tx{pending_messages = [{Message, false} | Pending], + ch_pid = ChPid}). record_pending_acks(Txn, ChPid, MsgIds) -> Tx = #tx{pending_acks = Pending} = lookup_tx(Txn), @@ -485,53 +470,48 @@ record_pending_acks(Txn, ChPid, MsgIds) -> store_tx(Txn, Tx#tx{pending_acks = [MsgIds | Pending], ch_pid = ChPid}). -commit_transaction(Txn, State) -> - #tx { ch_pid = ChPid, - pending_messages = PendingMessages, - pending_acks = PendingAcks - } = lookup_tx(Txn), - PendingMessagesOrdered = lists:reverse(PendingMessages), - PendingAcksOrdered = lists:append(PendingAcks), - Acks = - case lookup_ch(ChPid) of - not_found -> []; - C = #cr { unacked_messages = UAM } -> - {MsgWithAcks, Remaining} = - collect_messages(PendingAcksOrdered, UAM), - store_ch_record(C#cr{unacked_messages = Remaining}), - MsgWithAcks - end, - {ok, MS} = rabbit_mixed_queue:tx_commit( - PendingMessagesOrdered, Acks, State #q.mixed_state), - State #q { mixed_state = MS }. - -rollback_transaction(Txn, State) -> - #tx { pending_messages = PendingMessages - } = lookup_tx(Txn), - {ok, MS} = rabbit_mixed_queue:tx_cancel(PendingMessages, - State #q.mixed_state), - erase_tx(Txn), - State #q { mixed_state = MS }. +process_pending(Txn, State) -> + #tx{ch_pid = ChPid, + pending_messages = PendingMessages, + pending_acks = PendingAcks} = lookup_tx(Txn), + case lookup_ch(ChPid) of + not_found -> ok; + C = #cr{unacked_messages = UAM} -> + {_Acked, Remaining} = + collect_messages(lists:append(PendingAcks), UAM), + store_ch_record(C#cr{unacked_messages = Remaining}) + end, + deliver_or_enqueue_n(lists:reverse(PendingMessages), State). -%% {A, B} = collect_messages(C, D) %% A = C `intersect` D; B = D \\ C -%% err, A = C `intersect` D , via projection through the dict that is C collect_messages(MsgIds, UAM) -> lists:mapfoldl( fun (MsgId, D) -> {dict:fetch(MsgId, D), dict:erase(MsgId, D)} end, UAM, MsgIds). +purge_message_buffer(QName, MessageBuffer) -> + Messages = + [[Message || {Message, _Delivered} <- + queue:to_list(MessageBuffer)] | + lists:map( + fun (#cr{unacked_messages = UAM}) -> + [Message || {_MessageId, Message} <- dict:to_list(UAM)] + end, + all_ch_record())], + %% the simplest, though certainly not the most obvious or + %% efficient, way to purge messages from the persister is to + %% artifically ack them. + persist_acks(none, QName, lists:append(Messages)). + infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. i(name, #q{q = #amqqueue{name = Name}}) -> Name; i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(mode, #q{ mixed_state = MS }) -> - rabbit_mixed_queue:info(MS); i(pid, _) -> self(); -i(messages_ready, #q { mixed_state = MS }) -> - rabbit_mixed_queue:length(MS); +i(messages_ready, #q{message_buffer = MessageBuffer}) -> + queue:len(MessageBuffer); i(messages_unacknowledged, _) -> lists:sum([dict:size(UAM) || #cr{unacked_messages = UAM} <- all_ch_record()]); @@ -555,12 +535,6 @@ i(memory, _) -> i(Item, _) -> throw({bad_argument, Item}). -report_memory(Hib, State = #q { mixed_state = MS }) -> - {MS1, MSize, Gain, Loss} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - rabbit_queue_mode_manager:report_memory(self(), MSize, Gain, Loss, Hib), - State #q { mixed_state = MS1 }. - %--------------------------------------------------------------------------- handle_call(info, _From, State) -> @@ -586,8 +560,7 @@ handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> %% just all ready-to-consume queues get the message, with unready %% queues discarding the message? %% - {Delivered, NewState} = - attempt_immediate_delivery(Txn, ChPid, Message, State), + {Delivered, NewState} = attempt_delivery(Txn, ChPid, Message, State), reply(Delivered, NewState); handle_call({deliver, Txn, Message, ChPid}, _From, State) -> @@ -596,11 +569,12 @@ handle_call({deliver, Txn, Message, ChPid}, _From, State) -> reply(Delivered, NewState); handle_call({commit, Txn}, From, State) -> - NewState = commit_transaction(Txn, State), + ok = commit_work(Txn, qname(State)), %% optimisation: we reply straight away so the sender can continue gen_server2:reply(From, ok), + NewState = process_pending(Txn, State), erase_tx(Txn), - noreply(run_message_queue(NewState)); + noreply(NewState); handle_call({notify_down, ChPid}, From, State) -> %% optimisation: we reply straight away so the sender can continue @@ -610,27 +584,25 @@ handle_call({notify_down, ChPid}, From, State) -> handle_call({basic_get, ChPid, NoAck}, _From, State = #q{q = #amqqueue{name = QName}, next_msg_id = NextId, - mixed_state = MS - }) -> - case rabbit_mixed_queue:deliver(MS) of - {empty, MS1} -> reply(empty, State #q { mixed_state = MS1 }); - {{Msg, IsDelivered, AckTag, Remaining}, MS1} -> + message_buffer = MessageBuffer}) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> AckRequired = not(NoAck), - {ok, MS3} = - case AckRequired of - true -> - C = #cr{unacked_messages = UAM} = ch_record(ChPid), - NewUAM = dict:store(NextId, {Msg, AckTag}, UAM), - store_ch_record(C#cr{unacked_messages = NewUAM}), - {ok, MS1}; - false -> - rabbit_mixed_queue:ack([{Msg, AckTag}], MS1) - end, - Message = {QName, self(), NextId, IsDelivered, Msg}, - reply({ok, Remaining, Message}, - State #q { next_msg_id = NextId + 1, - mixed_state = MS3 - }) + case AckRequired of + true -> + persist_delivery(QName, Message, Delivered), + C = #cr{unacked_messages = UAM} = ch_record(ChPid), + NewUAM = dict:store(NextId, Message, UAM), + store_ch_record(C#cr{unacked_messages = NewUAM}); + false -> + persist_auto_ack(QName, Message) + end, + Msg = {QName, self(), NextId, Delivered, Message}, + reply({ok, queue:len(BufferTail), Msg}, + State#q{message_buffer = BufferTail, + next_msg_id = NextId + 1}); + {empty, _} -> + reply(empty, State) end; handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, @@ -651,14 +623,15 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, ack_required = not(NoAck)}, store_ch_record(C#cr{consumer_count = ConsumerCount +1, limiter_pid = LimiterPid}), - case ConsumerCount of - 0 -> ok = rabbit_limiter:register(LimiterPid, self()); - _ -> ok + if ConsumerCount == 0 -> + ok = rabbit_limiter:register(LimiterPid, self()); + true -> + ok end, - ExclusiveConsumer = case ExclusiveConsume of - true -> {ChPid, ConsumerTag}; - false -> ExistingHolder - end, + ExclusiveConsumer = + if ExclusiveConsume -> {ChPid, ConsumerTag}; + true -> ExistingHolder + end, State1 = State#q{has_had_consumers = true, exclusive_consumer = ExclusiveConsumer}, ok = maybe_send_reply(ChPid, OkMsg), @@ -669,7 +642,7 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, add_consumer( ChPid, Consumer, State1#q.blocked_consumers)}; - false -> run_message_queue( + false -> run_poke_burst( State1#q{ active_consumers = add_consumer( @@ -688,10 +661,11 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, reply(ok, State); C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - ok = case ConsumerCount of - 1 -> rabbit_limiter:unregister(LimiterPid, self()); - _ -> ok - end, + if ConsumerCount == 1 -> + ok = rabbit_limiter:unregister(LimiterPid, self()); + true -> + ok + end, ok = maybe_send_reply(ChPid, OkMsg), NewState = State#q{exclusive_consumer = cancel_holder(ChPid, @@ -710,15 +684,14 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, end; handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, - mixed_state = MS, + message_buffer = MessageBuffer, active_consumers = ActiveConsumers}) -> - Length = rabbit_mixed_queue:length(MS), - reply({ok, Name, Length, queue:len(ActiveConsumers)}, State); + reply({ok, Name, queue:len(MessageBuffer), queue:len(ActiveConsumers)}, + State); handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q { mixed_state = MS }) -> - Length = rabbit_mixed_queue:length(MS), - IsEmpty = Length == 0, + State = #q{message_buffer = MessageBuffer}) -> + IsEmpty = queue:is_empty(MessageBuffer), IsUnused = is_unused(State), if IfEmpty and not(IsEmpty) -> @@ -726,16 +699,16 @@ handle_call({delete, IfUnused, IfEmpty}, _From, IfUnused and not(IsUnused) -> reply({error, in_use}, State); true -> - {stop, normal, {ok, Length}, State} + {stop, normal, {ok, queue:len(MessageBuffer)}, State} end; -handle_call(purge, _From, State) -> - {Count, MS} = rabbit_mixed_queue:purge(State #q.mixed_state), - reply({ok, Count}, - State #q { mixed_state = MS }); +handle_call(purge, _From, State = #q{message_buffer = MessageBuffer}) -> + ok = purge_message_buffer(qname(State), MessageBuffer), + reply({ok, queue:len(MessageBuffer)}, + State#q{message_buffer = queue:new()}); -handle_call({claim_queue, ReaderPid}, _From, - State = #q{owner = Owner, exclusive_consumer = Holder}) -> +handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, + exclusive_consumer = Holder}) -> case Owner of none -> case check_exclusive_access(Holder, true, State) of @@ -748,10 +721,7 @@ handle_call({claim_queue, ReaderPid}, _From, %% pid... reply(locked, State); ok -> - reply(ok, State #q { owner = - {ReaderPid, - erlang:monitor(process, ReaderPid)} }) - + reply(ok, State#q{owner = {ReaderPid, erlang:monitor(process, ReaderPid)}}) end; {ReaderPid, _MonitorRef} -> reply(ok, State); @@ -769,21 +739,24 @@ handle_cast({ack, Txn, MsgIds, ChPid}, State) -> not_found -> noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, Remaining} = collect_messages(MsgIds, UAM), + {Acked, Remaining} = collect_messages(MsgIds, UAM), + persist_acks(Txn, qname(State), Acked), case Txn of none -> - {ok, MS} = - rabbit_mixed_queue:ack(MsgWithAcks, State #q.mixed_state), - store_ch_record(C#cr{unacked_messages = Remaining}), - noreply(State #q { mixed_state = MS }); + store_ch_record(C#cr{unacked_messages = Remaining}); _ -> - record_pending_acks(Txn, ChPid, MsgIds), - noreply(State) - end + record_pending_acks(Txn, ChPid, MsgIds) + end, + noreply(State) end; handle_cast({rollback, Txn}, State) -> - noreply(rollback_transaction(Txn, State)); + ok = rollback_work(Txn, qname(State)), + erase_tx(Txn), + noreply(State); + +handle_cast({redeliver, Messages}, State) -> + noreply(deliver_or_enqueue_n(Messages, State)); handle_cast({requeue, MsgIds, ChPid}, State) -> case lookup_ch(ChPid) of @@ -792,9 +765,10 @@ handle_cast({requeue, MsgIds, ChPid}, State) -> [ChPid]), noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, NewUAM} = collect_messages(MsgIds, UAM), + {Messages, NewUAM} = collect_messages(MsgIds, UAM), store_ch_record(C#cr{unacked_messages = NewUAM}), - noreply(deliver_or_requeue_n(MsgWithAcks, State)) + noreply(deliver_or_enqueue_n( + [{Message, true} || Message <- Messages], State)) end; handle_cast({unblock, ChPid}, State) -> @@ -823,22 +797,7 @@ handle_cast({limit, ChPid, LimiterPid}, State) -> end, NewLimited = Limited andalso LimiterPid =/= undefined, C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> - PendingMessages = - lists:flatten([Pending || #tx { pending_messages = Pending} - <- all_tx_record()]), - {ok, MS1} = (case Mode of - disk -> fun rabbit_mixed_queue:to_disk_only_mode/2; - mixed -> fun rabbit_mixed_queue:to_mixed_mode/2 - end)(PendingMessages, MS), - noreply(State #q { mixed_state = MS1 }); - -handle_cast(report_memory, State) -> - %% deliberately don't call noreply/2 as we don't want to restart the timer - %% by unsetting the timer, we force a report on the next normal message - {noreply, State #q { memory_report_timer = undefined }, hibernate}. + end)). handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> @@ -859,10 +818,3 @@ handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> handle_info(Info, State) -> ?LOGDEBUG("Info in queue: ~p~n", [Info]), {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q { mixed_state = MS }) -> - MS1 = rabbit_mixed_queue:maybe_prefetch(MS), - State1 = - stop_memory_timer(report_memory(true, State #q { mixed_state = MS1 })), - %% don't call noreply/1 as that'll restart the memory_report_timer - {hibernate, State1}. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 8adb608f..4033aaaf 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -33,8 +33,8 @@ -include("rabbit.hrl"). -include("rabbit_framing.hrl"). --export([publish/1, message/4, message/5, message/6, delivery/4]). --export([properties/1, publish/4, publish/7]). +-export([publish/1, message/4, properties/1, delivery/4]). +-export([publish/4, publish/7]). -export([build_content/2, from_content/1]). %%---------------------------------------------------------------------------- @@ -48,10 +48,6 @@ -spec(delivery/4 :: (bool(), bool(), maybe(txn()), message()) -> delivery()). -spec(message/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> message()). --spec(message/5 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid()) -> message()). --spec(message/6 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid(), bool()) -> message()). -spec(properties/1 :: (properties_input()) -> amqp_properties()). -spec(publish/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> publish_result()). @@ -95,18 +91,11 @@ from_content(Content) -> {Props, list_to_binary(lists:reverse(FragmentsRev))}. message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, rabbit_guid:guid()). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, false). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, IsPersistent) -> Properties = properties(RawProperties), #basic_message{exchange_name = ExchangeName, routing_key = RoutingKeyBin, content = build_content(Properties, BodyBin), - guid = MsgId, - is_persistent = IsPersistent}. + persistent_key = none}. properties(P = #'P_basic'{}) -> P; diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 397659c1..16b7c938 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -317,11 +317,14 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, %% We decode the content's properties here because we're almost %% certain to want to look at delivery-mode and priority. DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), + PersistentKey = case is_message_persistent(DecodedContent) of + true -> rabbit_guid:guid(); + false -> none + end, Message = #basic_message{exchange_name = ExchangeName, routing_key = RoutingKey, content = DecodedContent, - guid = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent)}, + persistent_key = PersistentKey}, {RoutingRes, DeliveredQPids} = rabbit_exchange:publish( Exchange, diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 99bbb742..37e4d189 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,9 +137,6 @@ Available commands: list_bindings [-p ] list_connections [ ...] - pin_queue_to_disk - unpin_queue_from_disk - Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -155,8 +152,8 @@ virtual host parameter for which to display results. The default value is \"/\". must be a member of the list [name, durable, auto_delete, arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, -messages, acks_uncommitted, consumers, transactions, memory, mode]. The default -is to display name and (number of) messages. +messages, acks_uncommitted, consumers, transactions, memory]. The default is + to display name and (number of) messages. must be a member of the list [name, type, durable, auto_delete, arguments]. The default is to display name and type. @@ -169,9 +166,6 @@ peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. -pin_queue_to_disk will force a queue to be in disk mode. -unpin_queue_from_disk will permit a queue that has been pinned to disk mode -to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -286,18 +280,6 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). -action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> - Inform("Pinning queue ~p in vhost ~p to disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), true]); - -action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> - Inform("Unpinning queue ~p in vhost ~p from disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), false]); - action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl deleted file mode 100644 index 5940f5ad..00000000 --- a/src/rabbit_disk_queue.erl +++ /dev/null @@ -1,1973 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_disk_queue). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([handle_pre_hibernate/1]). - --export([publish/3, deliver/1, phantom_deliver/1, ack/2, - tx_publish/1, tx_commit/3, tx_cancel/1, - requeue/2, purge/1, delete_queue/1, - delete_non_durable_queues/1, auto_ack_next_message/1, - requeue_next_n/2, length/1, foldl/3, prefetch/1 - ]). - --export([filesync/0, cache_info/0]). - --export([stop/0, stop_and_obliterate/0, report_memory/0, - set_mode/1, to_disk_only_mode/0, to_ram_disk_mode/0]). - --include("rabbit.hrl"). - --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_TRANSIENT, 255). --define(WRITE_OK_PERSISTENT, 254). --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(MSG_LOC_NAME, rabbit_disk_queue_msg_location). --define(FILE_SUMMARY_ETS_NAME, rabbit_disk_queue_file_summary). --define(SEQUENCE_ETS_NAME, rabbit_disk_queue_sequences). --define(CACHE_ETS_NAME, rabbit_disk_queue_cache). --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). --define(FILE_EXTENSION_DETS, ".dets"). --define(FILE_PACKING_ADJUSTMENT, (1 + (2* (?INTEGER_SIZE_BYTES)))). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds --define(BATCH_SIZE, 10000). --define(CACHE_MAX_SIZE, 10485760). - --define(SERVER, ?MODULE). - --define(MAX_READ_FILE_HANDLES, 256). --define(FILE_SIZE_LIMIT, (256*1024*1024)). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(dqstate, - {msg_location_dets, %% where are messages? - msg_location_ets, %% as above, but for ets version - operation_mode, %% ram_disk | disk_only - file_summary, %% what's in the files? - sequences, %% next read and write for each q - current_file_num, %% current file name as number - current_file_name, %% current file name - current_file_handle, %% current file handle - current_offset, %% current offset within current file - current_dirty, %% has the current file been written to - %% since the last fsync? - file_size_limit, %% how big can our files get? - read_file_handles, %% file handles for reading (LRU) - read_file_handles_limit, %% how many file handles can we open? - on_sync_txns, %% list of commiters to run on sync (reversed) - commit_timer_ref, %% TRef for our interval timer - last_sync_offset, %% current_offset at the last time we sync'd - message_cache, %% ets message cache - memory_report_timer, %% TRef for the memory report timer - wordsize, %% bytes in a word on this platform - mnesia_bytes_per_record, %% bytes per record in mnesia in ram_disk mode - ets_bytes_per_record %% bytes per record in msg_location_ets - }). - -%% The components: -%% -%% MsgLocation: this is a (d)ets table which contains: -%% {MsgId, RefCount, File, Offset, TotalSize, IsPersistent} -%% FileSummary: this is an ets table which contains: -%% {File, ValidTotalSize, ContiguousTop, Left, Right} -%% Sequences: this is an ets table which contains: -%% {Q, ReadSeqId, WriteSeqId} -%% rabbit_disk_queue: this is an mnesia table which contains: -%% #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, -%% is_delivered = IsDelivered, -%% msg_id = MsgId -%% } -%% - -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the MsgLocation table); how much useful data is in each file and -%% which files are on the left and right of each other. This is the -%% purpose of the FileSummary table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file, whilst ContiguousTop contains the amount of -%% valid data right at the start of each file. These are needed for -%% garbage collection. -%% -%% On publish, we write the message to disk, record the changes to -%% FileSummary and MsgLocation, and, should this be either a plain -%% publish, or followed by a tx_commit, we record the message in the -%% mnesia table. Sequences exists to enforce ordering of messages as -%% they are published within a queue. -%% -%% On delivery, we read the next message to be read from disk -%% (according to the ReadSeqId for the given queue) and record in the -%% mnesia table that the message has been delivered. -%% -%% On ack we remove the relevant entry from MsgLocation, update -%% FileSummary and delete from the mnesia table. -%% -%% In order to avoid extra mnesia searching, we return the SeqId -%% during delivery which must be returned in ack - it is not possible -%% to ack from MsgId alone. - -%% As messages are ack'd, holes develop in the files. When we discover -%% that either a file is now empty or that it can be combined with the -%% useful data in either its left or right file, we compact the two -%% files together. This keeps disk utilisation high and aids -%% performance. -%% -%% Given the compaction between two files, the left file is considered -%% the ultimate destination for the good data in the right file. If -%% necessary, the good data in the left file which is fragmented -%% throughout the file is written out to a temporary file, then read -%% back in to form a contiguous chunk of good data at the start of the -%% left file. Thus the left file is garbage collected and -%% compacted. Then the good data from the right file is copied onto -%% the end of the left file. MsgLocation and FileSummary tables are -%% updated. -%% -%% On startup, we scan the files we discover, dealing with the -%% possibilites of a crash have occured during a compaction (this -%% consists of tidyup - the compaction is deliberately designed such -%% that data is duplicated on disk rather than risking it being lost), -%% and rebuild the dets and ets tables (MsgLocation, FileSummary, -%% Sequences) from what we find. We ensure that the messages we have -%% discovered on disk match exactly with the messages recorded in the -%% mnesia table. - -%% MsgLocation is deliberately a dets table, and the mnesia table is -%% set to be a disk_only_table in order to ensure that we are not RAM -%% constrained. However, for performance reasons, it is possible to -%% call to_ram_disk_mode/0 which will alter the mnesia table to -%% disc_copies and convert MsgLocation to an ets table. This results -%% in a massive performance improvement, at the expense of greater RAM -%% usage. The idea is that when memory gets tight, we switch to -%% disk_only mode but otherwise try to run in ram_disk mode. - -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten (yes, this is -%% the data the size of which is tracked by the ContiguousTop -%% variable. Judicious use of a mirror is required). -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). - -%% ---- SPECS ---- - --ifdef(use_specs). - --type(seq_id() :: non_neg_integer()). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(publish/3 :: (queue_name(), message(), bool()) -> 'ok'). --spec(deliver/1 :: (queue_name()) -> - ('empty' | {message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}, non_neg_integer()})). --spec(phantom_deliver/1 :: (queue_name()) -> - ( 'empty' | {msg_id(), bool(), bool(), {msg_id(), seq_id()}, - non_neg_integer()})). --spec(prefetch/1 :: (queue_name()) -> 'ok'). --spec(ack/2 :: (queue_name(), [{msg_id(), seq_id()}]) -> 'ok'). --spec(auto_ack_next_message/1 :: (queue_name()) -> 'ok'). --spec(tx_publish/1 :: (message()) -> 'ok'). --spec(tx_commit/3 :: (queue_name(), [{msg_id(), bool()}], - [{msg_id(), seq_id()}]) -> 'ok'). --spec(tx_cancel/1 :: ([msg_id()]) -> 'ok'). --spec(requeue/2 :: (queue_name(), [{{msg_id(), seq_id()}, bool()}]) -> 'ok'). --spec(requeue_next_n/2 :: (queue_name(), non_neg_integer()) -> 'ok'). --spec(purge/1 :: (queue_name()) -> non_neg_integer()). --spec(delete_queue/1 :: (queue_name()) -> 'ok'). --spec(delete_non_durable_queues/1 :: (set()) -> 'ok'). --spec(length/1 :: (queue_name()) -> non_neg_integer()). --spec(foldl/3 :: (fun (({message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}}, A) -> - A), A, queue_name()) -> A). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_obliterate/0 :: () -> 'ok'). --spec(to_disk_only_mode/0 :: () -> 'ok'). --spec(to_ram_disk_mode/0 :: () -> 'ok'). --spec(filesync/0 :: () -> 'ok'). --spec(cache_info/0 :: () -> [{atom(), term()}]). --spec(report_memory/0 :: () -> 'ok'). --spec(set_mode/1 :: ('disk' | 'mixed') -> 'ok'). - --endif. - -%% ---- PUBLIC API ---- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, - [?FILE_SIZE_LIMIT, ?MAX_READ_FILE_HANDLES], []). - -publish(Q, Message = #basic_message {}, IsDelivered) -> - gen_server2:cast(?SERVER, {publish, Q, Message, IsDelivered}). - -deliver(Q) -> - gen_server2:call(?SERVER, {deliver, Q}, infinity). - -phantom_deliver(Q) -> - gen_server2:call(?SERVER, {phantom_deliver, Q}, infinity). - -prefetch(Q) -> - gen_server2:pcast(?SERVER, -1, {prefetch, Q, self()}). - -ack(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {ack, Q, MsgSeqIds}). - -auto_ack_next_message(Q) -> - gen_server2:cast(?SERVER, {auto_ack_next_message, Q}). - -tx_publish(Message = #basic_message {}) -> - gen_server2:cast(?SERVER, {tx_publish, Message}). - -tx_commit(Q, PubMsgIds, AckSeqIds) - when is_list(PubMsgIds) andalso is_list(AckSeqIds) -> - gen_server2:call(?SERVER, {tx_commit, Q, PubMsgIds, AckSeqIds}, infinity). - -tx_cancel(MsgIds) when is_list(MsgIds) -> - gen_server2:cast(?SERVER, {tx_cancel, MsgIds}). - -requeue(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {requeue, Q, MsgSeqIds}). - -requeue_next_n(Q, N) when is_integer(N) -> - gen_server2:cast(?SERVER, {requeue_next_n, Q, N}). - -purge(Q) -> - gen_server2:call(?SERVER, {purge, Q}, infinity). - -delete_queue(Q) -> - gen_server2:cast(?SERVER, {delete_queue, Q}). - -delete_non_durable_queues(DurableQueues) -> - gen_server2:call(?SERVER, {delete_non_durable_queues, DurableQueues}, - infinity). - -length(Q) -> - gen_server2:call(?SERVER, {length, Q}, infinity). - -foldl(Fun, Init, Acc) -> - gen_server2:call(?SERVER, {foldl, Fun, Init, Acc}, infinity). - -stop() -> - gen_server2:call(?SERVER, stop, infinity). - -stop_and_obliterate() -> - gen_server2:call(?SERVER, stop_vaporise, infinity). - -to_disk_only_mode() -> - gen_server2:pcall(?SERVER, 9, to_disk_only_mode, infinity). - -to_ram_disk_mode() -> - gen_server2:pcall(?SERVER, 9, to_ram_disk_mode, infinity). - -filesync() -> - gen_server2:pcast(?SERVER, 10, filesync). - -cache_info() -> - gen_server2:call(?SERVER, cache_info, infinity). - -report_memory() -> - gen_server2:cast(?SERVER, report_memory). - -set_mode(Mode) -> - gen_server2:pcast(?SERVER, 10, {set_mode, Mode}). - -%% ---- GEN-SERVER INTERNAL API ---- - -init([FileSizeLimit, ReadFileHandlesLimit]) -> - %% If the gen_server is part of a supervision tree and is ordered - %% by its supervisor to terminate, terminate will be called with - %% Reason=shutdown if the following conditions apply: - %% * the gen_server has been set to trap exit signals, and - %% * the shutdown strategy as defined in the supervisor's - %% child specification is an integer timeout value, not - %% brutal_kill. - %% Otherwise, the gen_server will be immediately terminated. - process_flag(trap_exit, true), - ok = rabbit_queue_mode_manager:register - (self(), true, rabbit_disk_queue, set_mode, []), - Node = node(), - ok = - case mnesia:change_table_copy_type(rabbit_disk_queue, Node, - disc_copies) of - {atomic, ok} -> ok; - {aborted, {already_exists, rabbit_disk_queue, Node, - disc_copies}} -> ok; - E -> E - end, - ok = filelib:ensure_dir(form_filename("nothing")), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - {ok, MsgLocationDets} = - dets:open_file(?MSG_LOC_NAME, - [{file, form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)}, - {min_no_slots, 1024*1024}, - %% man says this should be <= 32M. But it works... - {max_no_slots, 30*1024*1024}, - {type, set} - ]), - - %% it would be better to have this as private, but dets:from_ets/2 - %% seems to blow up if it is set private - MsgLocationEts = ets:new(?MSG_LOC_NAME, [set, protected]), - - TRef = start_memory_timer(), - - InitName = "0" ++ ?FILE_EXTENSION, - State = - #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - operation_mode = ram_disk, - file_summary = ets:new(?FILE_SUMMARY_ETS_NAME, - [set, private]), - sequences = ets:new(?SEQUENCE_ETS_NAME, - [set, private]), - current_file_num = 0, - current_file_name = InitName, - current_file_handle = undefined, - current_offset = 0, - current_dirty = false, - file_size_limit = FileSizeLimit, - read_file_handles = {dict:new(), gb_trees:empty()}, - read_file_handles_limit = ReadFileHandlesLimit, - on_sync_txns = [], - commit_timer_ref = undefined, - last_sync_offset = 0, - message_cache = ets:new(?CACHE_ETS_NAME, - [set, private]), - memory_report_timer = TRef, - wordsize = erlang:system_info(wordsize), - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined - }, - {ok, State1 = #dqstate { current_file_name = CurrentName, - current_offset = Offset } } = - load_from_disk(State), - Path = form_filename(CurrentName), - Exists = case file:read_file_info(Path) of - {error,enoent} -> false; - {ok, _} -> true - end, - %% read is only needed so that we can seek - {ok, FileHdl} = file:open(Path, [read, write, raw, binary, delayed_write]), - case Exists of - true -> {ok, Offset} = file:position(FileHdl, {bof, Offset}); - false -> %% new file, so preallocate - ok = preallocate(FileHdl, FileSizeLimit, Offset) - end, - State2 = State1 #dqstate { current_file_handle = FileHdl }, - %% by reporting a memory use of 0, we guarantee the manager will - %% grant us to ram_disk mode. We have to start in ram_disk mode - %% because we can't find values for mnesia_bytes_per_record or - %% ets_bytes_per_record otherwise. - ok = rabbit_queue_mode_manager:report_memory(self(), 0, false), - ok = report_memory(false, State2), - {ok, State2, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, true, false, true, State), - reply(Result, State1); -handle_call({phantom_deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, false, false, true, State), - reply(Result, State1); -handle_call({tx_commit, Q, PubMsgIds, AckSeqIds}, From, State) -> - State1 = - internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, State), - noreply(State1); -handle_call({purge, Q}, _From, State) -> - {ok, Count, State1} = internal_purge(Q, State), - reply(Count, State1); -handle_call({length, Q}, _From, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - reply(WriteSeqId - ReadSeqId, State); -handle_call({foldl, Fun, Init, Q}, _From, State) -> - {ok, Result, State1} = internal_foldl(Q, Fun, Init, State), - reply(Result, State1); -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; %% gen_server now calls terminate -handle_call(stop_vaporise, _From, State) -> - State1 = #dqstate { file_summary = FileSummary, - sequences = Sequences } = - shutdown(State), %% tidy up file handles early - {atomic, ok} = mnesia:clear_table(rabbit_disk_queue), - true = ets:delete(FileSummary), - true = ets:delete(Sequences), - lists:foreach(fun file:delete/1, filelib:wildcard(form_filename("*"))), - {stop, normal, ok, - State1 #dqstate { current_file_handle = undefined, - read_file_handles = {dict:new(), gb_trees:empty()}}}; - %% gen_server now calls terminate, which then calls shutdown -handle_call(to_disk_only_mode, _From, State) -> - reply(ok, to_disk_only_mode(State)); -handle_call(to_ram_disk_mode, _From, State) -> - reply(ok, to_ram_disk_mode(State)); -handle_call({delete_non_durable_queues, DurableQueues}, _From, State) -> - {ok, State1} = internal_delete_non_durable_queues(DurableQueues, State), - reply(ok, State1); -handle_call(cache_info, _From, State = #dqstate { message_cache = Cache }) -> - reply(ets:info(Cache), State). - -handle_cast({publish, Q, Message, IsDelivered}, State) -> - {ok, _MsgSeqId, State1} = internal_publish(Q, Message, IsDelivered, State), - noreply(State1); -handle_cast({ack, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_ack(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({auto_ack_next_message, Q}, State) -> - {ok, State1} = internal_auto_ack(Q, State), - noreply(State1); -handle_cast({tx_publish, Message}, State) -> - {ok, State1} = internal_tx_publish(Message, State), - noreply(State1); -handle_cast({tx_cancel, MsgIds}, State) -> - {ok, State1} = internal_tx_cancel(MsgIds, State), - noreply(State1); -handle_cast({requeue, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_requeue(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({requeue_next_n, Q, N}, State) -> - {ok, State1} = internal_requeue_next_n(Q, N, State), - noreply(State1); -handle_cast({delete_queue, Q}, State) -> - {ok, State1} = internal_delete_queue(Q, State), - noreply(State1); -handle_cast(filesync, State) -> - noreply(sync_current_file_handle(State)); -handle_cast({set_mode, Mode}, State) -> - noreply((case Mode of - disk -> fun to_disk_only_mode/1; - mixed -> fun to_ram_disk_mode/1 - end)(State)); -handle_cast(report_memory, State) -> - %% call noreply1/2, not noreply/1/2, as we don't want to restart the - %% memory_report_timer - %% by unsetting the timer, we force a report on the next normal message - noreply1(State #dqstate { memory_report_timer = undefined }); -handle_cast({prefetch, Q, From}, State) -> - {ok, Result, State1} = internal_deliver(Q, true, true, false, State), - Cont = rabbit_misc:with_exit_handler( - fun () -> false end, - fun () -> - ok = rabbit_queue_prefetcher:publish(From, Result), - true - end), - State3 = - case Cont of - true -> - case internal_deliver(Q, false, false, true, State1) of - {ok, empty, State2} -> State2; - {ok, {_MsgId, _IsPersistent, _Delivered, _MsgSeqId, _Rem}, - State2} -> State2 - end; - false -> State1 - end, - noreply(State3). - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(timeout, State) -> - %% must have commit_timer set, so timeout was 0, and we're not hibernating - noreply(sync_current_file_handle(State)). - -handle_pre_hibernate(State) -> - %% don't use noreply/1 or noreply1/1 as they'll restart the memory timer - ok = report_memory(true, State), - {hibernate, stop_memory_timer(State)}. - -terminate(_Reason, State) -> - shutdown(State). - -shutdown(State = #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - current_file_handle = FileHdl, - read_file_handles = {ReadHdls, _ReadHdlsAge} - }) -> - %% deliberately ignoring return codes here - State1 = stop_commit_timer(stop_memory_timer(State)), - dets:close(MsgLocationDets), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - true = ets:delete_all_objects(MsgLocationEts), - case FileHdl of - undefined -> ok; - _ -> sync_current_file_handle(State), - file:close(FileHdl) - end, - dict:fold(fun (_File, Hdl, _Acc) -> - file:close(Hdl) - end, ok, ReadHdls), - State1 #dqstate { current_file_handle = undefined, - current_dirty = false, - read_file_handles = {dict:new(), gb_trees:empty()}, - memory_report_timer = undefined - }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%% ---- UTILITY FUNCTIONS ---- - -stop_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #dqstate { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { memory_report_timer = undefined }. - -start_memory_timer() -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_disk_queue, report_memory, []), - TRef. - -start_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - ok = report_memory(false, State), - State #dqstate { memory_report_timer = start_memory_timer() }; -start_memory_timer(State) -> - State. - -report_memory(Hibernating, State) -> - Bytes = memory_use(State), - rabbit_queue_mode_manager:report_memory(self(), trunc(2.5 * Bytes), - Hibernating). - -memory_use(#dqstate { operation_mode = ram_disk, - file_summary = FileSummary, - sequences = Sequences, - msg_location_ets = MsgLocationEts, - message_cache = Cache, - wordsize = WordSize - }) -> - WordSize * (mnesia:table_info(rabbit_disk_queue, memory) + - ets:info(MsgLocationEts, memory) + - ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory)); -memory_use(#dqstate { operation_mode = disk_only, - file_summary = FileSummary, - sequences = Sequences, - msg_location_dets = MsgLocationDets, - message_cache = Cache, - wordsize = WordSize, - mnesia_bytes_per_record = MnesiaBytesPerRecord, - ets_bytes_per_record = EtsBytesPerRecord }) -> - MnesiaSizeEstimate = - mnesia:table_info(rabbit_disk_queue, size) * MnesiaBytesPerRecord, - MsgLocationSizeEstimate = - dets:info(MsgLocationDets, size) * EtsBytesPerRecord, - (WordSize * (ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory))) + - rabbit_misc:ceil(MnesiaSizeEstimate) + - rabbit_misc:ceil(MsgLocationSizeEstimate). - -to_disk_only_mode(State = #dqstate { operation_mode = disk_only }) -> - State; -to_disk_only_mode(State = #dqstate { operation_mode = ram_disk, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - wordsize = WordSize }) -> - rabbit_log:info("Converting disk queue to disk only mode~n", []), - MnesiaMemoryBytes = WordSize * mnesia:table_info(rabbit_disk_queue, memory), - MnesiaSize = lists:max([1, mnesia:table_info(rabbit_disk_queue, size)]), - EtsMemoryBytes = WordSize * ets:info(MsgLocationEts, memory), - EtsSize = lists:max([1, ets:info(MsgLocationEts, size)]), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_only_copies), - ok = dets:from_ets(MsgLocationDets, MsgLocationEts), - true = ets:delete_all_objects(MsgLocationEts), - garbage_collect(), - State #dqstate { operation_mode = disk_only, - mnesia_bytes_per_record = MnesiaMemoryBytes / MnesiaSize, - ets_bytes_per_record = EtsMemoryBytes / EtsSize }. - -to_ram_disk_mode(State = #dqstate { operation_mode = ram_disk }) -> - State; -to_ram_disk_mode(State = #dqstate { operation_mode = disk_only, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts }) -> - rabbit_log:info("Converting disk queue to ram disk mode~n", []), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_copies), - true = ets:from_dets(MsgLocationEts, MsgLocationDets), - ok = dets:delete_all_objects(MsgLocationDets), - garbage_collect(), - State #dqstate { operation_mode = ram_disk, - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined }. - -noreply(NewState) -> - noreply1(start_memory_timer(NewState)). - -noreply1(NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {noreply, NewState, hibernate}; -noreply1(NewState = #dqstate { commit_timer_ref = undefined }) -> - {noreply, start_commit_timer(NewState), 0}; -noreply1(NewState = #dqstate { on_sync_txns = [] }) -> - {noreply, stop_commit_timer(NewState), hibernate}; -noreply1(NewState) -> - {noreply, NewState, 0}. - -reply(Reply, NewState) -> - reply1(Reply, start_memory_timer(NewState)). - -reply1(Reply, NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {reply, Reply, NewState, hibernate}; -reply1(Reply, NewState = #dqstate { commit_timer_ref = undefined }) -> - {reply, Reply, start_commit_timer(NewState), 0}; -reply1(Reply, NewState = #dqstate { on_sync_txns = [] }) -> - {reply, Reply, stop_commit_timer(NewState), hibernate}; -reply1(Reply, NewState) -> - {reply, Reply, NewState, 0}. - -form_filename(Name) -> - filename:join(base_directory(), Name). - -base_directory() -> - filename:join(mnesia:system_info(directory), "rabbit_disk_queue/"). - -dets_ets_lookup(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - dets:lookup(MsgLocationDets, Key); -dets_ets_lookup(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - ets:lookup(MsgLocationEts, Key). - -dets_ets_delete(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - ok = dets:delete(MsgLocationDets, Key); -dets_ets_delete(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - true = ets:delete(MsgLocationEts, Key), - ok. - -dets_ets_insert(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - ok = dets:insert(MsgLocationDets, Obj); -dets_ets_insert(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert(MsgLocationEts, Obj), - ok. - -dets_ets_insert_new(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - true = dets:insert_new(MsgLocationDets, Obj); -dets_ets_insert_new(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert_new(MsgLocationEts, Obj). - -dets_ets_match_object(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - dets:match_object(MsgLocationDets, Obj); -dets_ets_match_object(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - ets:match_object(MsgLocationEts, Obj). - -get_read_handle(File, Offset, State = - #dqstate { read_file_handles = {ReadHdls, ReadHdlsAge}, - read_file_handles_limit = ReadFileHandlesLimit, - current_file_name = CurName, - current_dirty = IsDirty, - last_sync_offset = SyncOffset - }) -> - State1 = if CurName =:= File andalso IsDirty andalso Offset >= SyncOffset -> - sync_current_file_handle(State); - true -> State - end, - Now = now(), - {FileHdl, ReadHdls1, ReadHdlsAge1} = - case dict:find(File, ReadHdls) of - error -> - {ok, Hdl} = file:open(form_filename(File), - [read, raw, binary, - read_ahead]), - case dict:size(ReadHdls) < ReadFileHandlesLimit of - true -> - {Hdl, ReadHdls, ReadHdlsAge}; - _False -> - {Then, OldFile, ReadHdlsAge2} = - gb_trees:take_smallest(ReadHdlsAge), - {ok, {OldHdl, Then}} = - dict:find(OldFile, ReadHdls), - ok = file:close(OldHdl), - {Hdl, dict:erase(OldFile, ReadHdls), ReadHdlsAge2} - end; - {ok, {Hdl, Then}} -> - {Hdl, ReadHdls, gb_trees:delete(Then, ReadHdlsAge)} - end, - ReadHdls2 = dict:store(File, {FileHdl, Now}, ReadHdls1), - ReadHdlsAge3 = gb_trees:enter(Now, File, ReadHdlsAge1), - {FileHdl, - State1 #dqstate { read_file_handles = {ReadHdls2, ReadHdlsAge3} }}. - -sequence_lookup(Sequences, Q) -> - case ets:lookup(Sequences, Q) of - [] -> - {0, 0}; - [{Q, ReadSeqId, WriteSeqId}] -> - {ReadSeqId, WriteSeqId} - end. - -start_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, filesync, []), - State #dqstate { commit_timer_ref = TRef }. - -stop_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - State; -stop_commit_timer(State = #dqstate { commit_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { commit_timer_ref = undefined }. - -sync_current_file_handle(State = #dqstate { current_dirty = false, - on_sync_txns = [] }) -> - State; -sync_current_file_handle(State = #dqstate { current_file_handle = CurHdl, - current_dirty = IsDirty, - current_offset = CurOffset, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - SyncOffset1 = case IsDirty of - true -> ok = file:sync(CurHdl), - CurOffset; - false -> SyncOffset - end, - State1 = lists:foldl(fun internal_do_tx_commit/2, State, lists:reverse(Txns)), - State1 #dqstate { current_dirty = false, on_sync_txns = [], - last_sync_offset = SyncOffset1 }. - -msg_to_bin(Msg = #basic_message { content = Content }) -> - ClearedContent = rabbit_binary_parser:clear_decoded_content(Content), - term_to_binary(Msg #basic_message { content = ClearedContent }). - -bin_to_msg(MsgBin) -> - binary_to_term(MsgBin). - -remove_cache_entry(MsgId, #dqstate { message_cache = Cache }) -> - true = ets:delete(Cache, MsgId), - ok. - -fetch_and_increment_cache(MsgId, #dqstate { message_cache = Cache }) -> - case ets:lookup(Cache, MsgId) of - [] -> - not_found; - [{MsgId, Message, MsgSize, _RefCount}] -> - NewRefCount = ets:update_counter(Cache, MsgId, {4, 1}), - {Message, MsgSize, NewRefCount} - end. - -decrement_cache(MsgId, #dqstate { message_cache = Cache }) -> - true = try case ets:update_counter(Cache, MsgId, {4, -1}) of - N when N =< 0 -> true = ets:delete(Cache, MsgId); - _N -> true - end - catch error:badarg -> - %% MsgId is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message in mixed queue) - true - end, - ok. - -insert_into_cache(Message = #basic_message { guid = MsgId }, MsgSize, - Forced, State = #dqstate { message_cache = Cache }) -> - case cache_is_full(State) of - true -> ok; - false -> Count = case Forced of - true -> 0; - false -> 1 - end, - true = ets:insert_new(Cache, {MsgId, Message, - MsgSize, Count}), - ok - end. - -cache_is_full(#dqstate { message_cache = Cache }) -> - ets:info(Cache, memory) > ?CACHE_MAX_SIZE. - -%% ---- INTERNAL RAW FUNCTIONS ---- - -internal_deliver(Q, ReadMsg, FakeDeliver, Advance, - State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, empty, State}; - {ReadSeqId, WriteSeqId} when WriteSeqId >= ReadSeqId -> - Remaining = WriteSeqId - ReadSeqId - 1, - {ok, Result, State1} = - internal_read_message( - Q, ReadSeqId, ReadMsg, FakeDeliver, false, State), - true = case Advance of - true -> ets:insert(Sequences, - {Q, ReadSeqId+1, WriteSeqId}); - false -> true - end, - {ok, - case Result of - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}} -> - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}, - Remaining}; - {Message, BodySize, Delivered, {MsgId, ReadSeqId}} -> - {Message, BodySize, Delivered, {MsgId, ReadSeqId}, - Remaining} - end, State1} - end. - -internal_foldl(Q, Fun, Init, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - internal_foldl(Q, WriteSeqId, Fun, State, Init, ReadSeqId). - -internal_foldl(_Q, SeqId, _Fun, State, Acc, SeqId) -> - {ok, Acc, State}; -internal_foldl(Q, WriteSeqId, Fun, State, Acc, ReadSeqId) -> - {ok, MsgStuff, State1} - = internal_read_message(Q, ReadSeqId, true, true, false, State), - Acc1 = Fun(MsgStuff, Acc), - internal_foldl(Q, WriteSeqId, Fun, State1, Acc1, ReadSeqId + 1). - -internal_read_message(Q, ReadSeqId, ReadMsg, FakeDeliver, ForceInCache, State) -> - [Obj = - #dq_msg_loc {is_delivered = Delivered, msg_id = MsgId}] = - mnesia:dirty_read(rabbit_disk_queue, {Q, ReadSeqId}), - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - ok = - if FakeDeliver orelse Delivered -> ok; - true -> - mnesia:dirty_write(rabbit_disk_queue, - Obj #dq_msg_loc {is_delivered = true}) - end, - case ReadMsg of - true -> - case fetch_and_increment_cache(MsgId, State) of - not_found -> - {FileHdl, State1} = get_read_handle(File, Offset, State), - {ok, {MsgBody, IsPersistent, BodySize}} = - read_message_at_offset(FileHdl, Offset, TotalSize), - #basic_message { is_persistent=IsPersistent, guid=MsgId } = - Message = bin_to_msg(MsgBody), - ok = if RefCount > 1 orelse ForceInCache -> - insert_into_cache - (Message, BodySize, ForceInCache, State1); - true -> ok - %% it's not in the cache and we only - %% have 1 queue with the message. So - %% don't bother putting it in the - %% cache. - end, - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State1}; - {Message, BodySize, _RefCount} -> - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State} - end; - false -> - {ok, {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}}, State} - end. - -internal_auto_ack(Q, State) -> - case internal_deliver(Q, false, false, true, State) of - {ok, empty, State1} -> {ok, State1}; - {ok, {_MsgId, _IsPersistent, _Delivered, MsgSeqId, _Remaining}, - State1} -> - remove_messages(Q, [MsgSeqId], true, State1) - end. - -internal_ack(Q, MsgSeqIds, State) -> - remove_messages(Q, MsgSeqIds, true, State). - -%% Q is only needed if MnesiaDelete /= false -remove_messages(Q, MsgSeqIds, MnesiaDelete, - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - Files = - lists:foldl( - fun ({MsgId, SeqId}, Files1) -> - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - Files2 = - case RefCount of - 1 -> - ok = dets_ets_delete(State, MsgId), - ok = remove_cache_entry(MsgId, State), - [{File, ValidTotalSize, ContiguousTop, - Left, Right}] = ets:lookup(FileSummary, File), - ContiguousTop1 = - lists:min([ContiguousTop, Offset]), - true = - ets:insert(FileSummary, - {File, (ValidTotalSize-TotalSize- - ?FILE_PACKING_ADJUSTMENT), - ContiguousTop1, Left, Right}), - if CurName =:= File -> Files1; - true -> sets:add_element(File, Files1) - end; - _ when 1 < RefCount -> - ok = decrement_cache(MsgId, State), - ok = dets_ets_insert( - State, {MsgId, RefCount - 1, File, Offset, - TotalSize, IsPersistent}), - Files1 - end, - ok = case MnesiaDelete of - true -> mnesia:dirty_delete(rabbit_disk_queue, - {Q, SeqId}); - txn -> mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write); - _ -> ok - end, - Files2 - end, sets:new(), MsgSeqIds), - State1 = compact(Files, State), - {ok, State1}. - -internal_tx_publish(Message = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, - State = #dqstate { current_file_handle = CurHdl, - current_file_name = CurName, - current_offset = CurOffset, - file_summary = FileSummary - }) -> - case dets_ets_lookup(State, MsgId) of - [] -> - %% New message, lots to do - {ok, TotalSize} = append_message(CurHdl, MsgId, msg_to_bin(Message), - IsPersistent), - true = dets_ets_insert_new - (State, {MsgId, 1, CurName, - CurOffset, TotalSize, IsPersistent}), - [{CurName, ValidTotalSize, ContiguousTop, Left, undefined}] = - ets:lookup(FileSummary, CurName), - ValidTotalSize1 = ValidTotalSize + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - ContiguousTop1 = if CurOffset =:= ContiguousTop -> - %% can't be any holes in this file - ValidTotalSize1; - true -> ContiguousTop - end, - true = ets:insert(FileSummary, {CurName, ValidTotalSize1, - ContiguousTop1, Left, undefined}), - NextOffset = CurOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - maybe_roll_to_new_file( - NextOffset, State #dqstate {current_offset = NextOffset, - current_dirty = true}); - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] -> - %% We already know about it, just update counter - ok = dets_ets_insert(State, {MsgId, RefCount + 1, File, - Offset, TotalSize, IsPersistent}), - {ok, State} - end. - -internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, - State = #dqstate { current_file_name = CurFile, - current_dirty = IsDirty, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - NeedsSync = IsDirty andalso - lists:any(fun ({MsgId, _Delivered}) -> - [{MsgId, _RefCount, File, Offset, - _TotalSize, _IsPersistent}] = - dets_ets_lookup(State, MsgId), - File =:= CurFile andalso Offset >= SyncOffset - end, PubMsgIds), - TxnDetails = {Q, PubMsgIds, AckSeqIds, From}, - case NeedsSync of - true -> - Txns1 = [TxnDetails | Txns], - State #dqstate { on_sync_txns = Txns1 }; - false -> - internal_do_tx_commit(TxnDetails, State) - end. - -internal_do_tx_commit({Q, PubMsgIds, AckSeqIds, From}, - State = #dqstate { sequences = Sequences }) -> - {InitReadSeqId, InitWriteSeqId} = sequence_lookup(Sequences, Q), - WriteSeqId = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {ok, WriteSeqId1} = - lists:foldl( - fun ({MsgId, Delivered}, {ok, SeqId}) -> - {mnesia:write( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, - msg_id = MsgId, - is_delivered = Delivered - }, write), - SeqId + 1} - end, {ok, InitWriteSeqId}, PubMsgIds), - WriteSeqId1 - end), - {ok, State1} = remove_messages(Q, AckSeqIds, true, State), - true = case PubMsgIds of - [] -> true; - _ -> ets:insert(Sequences, {Q, InitReadSeqId, WriteSeqId}) - end, - gen_server2:reply(From, ok), - State1. - -internal_publish(Q, Message = #basic_message { guid = MsgId }, - IsDelivered, State) -> - {ok, State1 = #dqstate { sequences = Sequences }} = - internal_tx_publish(Message, State), - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - ok = mnesia:dirty_write(rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, WriteSeqId}, - msg_id = MsgId, - is_delivered = IsDelivered}), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId + 1}), - {ok, {MsgId, WriteSeqId}, State1}. - -internal_tx_cancel(MsgIds, State) -> - %% we don't need seq ids because we're not touching mnesia, - %% because seqids were never assigned - MsgSeqIds = lists:zip(MsgIds, lists:duplicate(erlang:length(MsgIds), - undefined)), - remove_messages(undefined, MsgSeqIds, false, State). - -internal_requeue(_Q, [], State) -> - {ok, State}; -internal_requeue(Q, MsgSeqIds, State = #dqstate { sequences = Sequences }) -> - %% We know that every seq_id in here is less than the ReadSeqId - %% you'll get if you look up this queue in Sequences (i.e. they've - %% already been delivered). We also know that the rows for these - %% messages are still in rabbit_disk_queue (i.e. they've not been - %% ack'd). - - %% Now, it would be nice if we could adjust the sequence ids in - %% rabbit_disk_queue (mnesia) to create a contiguous block and - %% then drop the ReadSeqId for the queue by the corresponding - %% amount. However, this is not safe because there may be other - %% sequence ids which have been sent out as part of deliveries - %% which are not being requeued. As such, moving things about in - %% rabbit_disk_queue _under_ the current ReadSeqId would result in - %% such sequence ids referring to the wrong messages. - - %% Therefore, the only solution is to take these messages, and to - %% reenqueue them at the top of the queue. Usefully, this only - %% affects the Sequences and rabbit_disk_queue structures - there - %% is no need to physically move the messages about on disk, so - %% MsgLocation and FileSummary stay put (which makes further sense - %% as they have no concept of sequence id anyway). - - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - {WriteSeqId1, Q, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foldl(fun requeue_message/2, {WriteSeqId, Q, []}, - MsgSeqIds) - end), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId1}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State}. - -requeue_message({{MsgId, SeqId}, IsDelivered}, {WriteSeqId, Q, Acc}) -> - [Obj = #dq_msg_loc { is_delivered = true, msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, SeqId}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeqId}, - is_delivered = IsDelivered - }, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write), - {WriteSeqId + 1, Q, [MsgId | Acc]}. - -%% move the next N messages from the front of the queue to the back. -internal_requeue_next_n(Q, N, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - if N >= (WriteSeqId - ReadSeqId) -> {ok, State}; - true -> - {ReadSeqIdN, WriteSeqIdN, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - requeue_next_messages(Q, N, ReadSeqId, WriteSeqId, []) - end - ), - true = ets:insert(Sequences, {Q, ReadSeqIdN, WriteSeqIdN}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State} - end. - -requeue_next_messages(_Q, 0, ReadSeq, WriteSeq, Acc) -> - {ReadSeq, WriteSeq, Acc}; -requeue_next_messages(Q, N, ReadSeq, WriteSeq, Acc) -> - [Obj = #dq_msg_loc { msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, ReadSeq}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeq}}, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, ReadSeq}, write), - requeue_next_messages(Q, N - 1, ReadSeq + 1, WriteSeq + 1, [MsgId | Acc]). - -internal_purge(Q, State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, 0, State}; - {ReadSeqId, WriteSeqId} -> - {MsgSeqIds, WriteSeqId} = - rabbit_misc:unfold( - fun (SeqId) when SeqId == WriteSeqId -> false; - (SeqId) -> - [#dq_msg_loc { msg_id = MsgId }] = - mnesia:dirty_read(rabbit_disk_queue, {Q, SeqId}), - {true, {MsgId, SeqId}, SeqId + 1} - end, ReadSeqId), - true = ets:insert(Sequences, {Q, WriteSeqId, WriteSeqId}), - {ok, State1} = remove_messages(Q, MsgSeqIds, true, State), - {ok, WriteSeqId - ReadSeqId, State1} - end. - -internal_delete_queue(Q, State) -> - {ok, _Count, State1 = #dqstate { sequences = Sequences }} = - internal_purge(Q, State), %% remove everything undelivered - true = ets:delete(Sequences, Q), - %% now remove everything already delivered - Objs = mnesia:dirty_match_object( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, '_'}, - msg_id = '_', - is_delivered = '_' - }), - MsgSeqIds = - lists:map( - fun (#dq_msg_loc { queue_and_seq_id = {_Q, SeqId}, - msg_id = MsgId }) -> - {MsgId, SeqId} end, Objs), - remove_messages(Q, MsgSeqIds, true, State1). - -internal_delete_non_durable_queues( - DurableQueues, State = #dqstate { sequences = Sequences }) -> - ets:foldl( - fun ({Q, _Read, _Write}, {ok, State1}) -> - case sets:is_element(Q, DurableQueues) of - true -> {ok, State1}; - false -> internal_delete_queue(Q, State1) - end - end, {ok, State}, Sequences). - -%% ---- ROLLING OVER THE APPEND FILE ---- - -maybe_roll_to_new_file(Offset, - State = #dqstate { file_size_limit = FileSizeLimit, - current_file_name = CurName, - current_file_handle = CurHdl, - current_file_num = CurNum, - file_summary = FileSummary - } - ) when Offset >= FileSizeLimit -> - State1 = sync_current_file_handle(State), - ok = file:close(CurHdl), - NextNum = CurNum + 1, - NextName = integer_to_list(NextNum) ++ ?FILE_EXTENSION, - {ok, NextHdl} = file:open(form_filename(NextName), - [write, raw, binary, delayed_write]), - ok = preallocate(NextHdl, FileSizeLimit, 0), - true = ets:update_element(FileSummary, CurName, {5, NextName}),%% 5 is Right - true = ets:insert_new(FileSummary, {NextName, 0, 0, CurName, undefined}), - State2 = State1 #dqstate { current_file_name = NextName, - current_file_handle = NextHdl, - current_file_num = NextNum, - current_offset = 0, - last_sync_offset = 0 - }, - {ok, compact(sets:from_list([CurName]), State2)}; -maybe_roll_to_new_file(_, State) -> - {ok, State}. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file:position(Hdl, {bof, FileSizeLimit}), - ok = file:truncate(Hdl), - {ok, FinalPos} = file:position(Hdl, {bof, FinalPos}), - ok. - -%% ---- GARBAGE COLLECTION / COMPACTION / AGGREGATION ---- - -compact(FilesSet, State) -> - %% smallest number, hence eldest, hence left-most, first - Files = lists:sort(sets:to_list(FilesSet)), - %% foldl reverses, so now youngest/right-most first - RemainingFiles = lists:foldl(fun (File, Acc) -> - delete_empty_files(File, Acc, State) - end, [], Files), - lists:foldl(fun combine_file/2, State, lists:reverse(RemainingFiles)). - -combine_file(File, State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - %% the file we're looking at may no longer exist as it may have - %% been deleted within the current GC run - case ets:lookup(FileSummary, File) of - [] -> State; - [FileObj = {File, _ValidData, _ContiguousTop, Left, Right}] -> - GoRight = - fun() -> - case Right of - undefined -> State; - _ when not (CurName == Right) -> - [RightObj] = ets:lookup(FileSummary, Right), - {_, State1} = - adjust_meta_and_combine(FileObj, RightObj, - State), - State1; - _ -> State - end - end, - case Left of - undefined -> - GoRight(); - _ -> [LeftObj] = ets:lookup(FileSummary, Left), - case adjust_meta_and_combine(LeftObj, FileObj, State) of - {true, State1} -> State1; - {false, State} -> GoRight() - end - end - end. - -adjust_meta_and_combine( - LeftObj = {LeftFile, LeftValidData, _LeftContigTop, LeftLeft, RightFile}, - RightObj = {RightFile, RightValidData, _RightContigTop, LeftFile, RightRight}, - State = #dqstate { file_size_limit = FileSizeLimit, - file_summary = FileSummary - }) -> - TotalValidData = LeftValidData + RightValidData, - if FileSizeLimit >= TotalValidData -> - State1 = combine_files(RightObj, LeftObj, State), - %% this could fail if RightRight is undefined - %% left is the 4th field - ets:update_element(FileSummary, RightRight, {4, LeftFile}), - true = ets:insert(FileSummary, {LeftFile, - TotalValidData, TotalValidData, - LeftLeft, - RightRight}), - true = ets:delete(FileSummary, RightFile), - {true, State1}; - true -> {false, State} - end. - -sort_msg_locations_by_offset(Asc, List) -> - Comp = case Asc of - true -> fun erlang:'<'/2; - false -> fun erlang:'>'/2 - end, - lists:sort(fun ({_, _, _, OffA, _, _}, {_, _, _, OffB, _, _}) -> - Comp(OffA, OffB) - end, List). - -truncate_and_extend_file(FileHdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file:position(FileHdl, {bof, Lowpoint}), - ok = file:truncate(FileHdl), - ok = preallocate(FileHdl, Highpoint, Lowpoint). - -combine_files({Source, SourceValid, _SourceContiguousTop, - _SourceLeft, _SourceRight}, - {Destination, DestinationValid, DestinationContiguousTop, - _DestinationLeft, _DestinationRight}, - State1) -> - State = close_file(Source, close_file(Destination, State1)), - {ok, SourceHdl} = - file:open(form_filename(Source), - [read, write, raw, binary, read_ahead, delayed_write]), - {ok, DestinationHdl} = - file:open(form_filename(Destination), - [read, write, raw, binary, read_ahead, delayed_write]), - ExpectedSize = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - if DestinationContiguousTop =:= DestinationValid -> - ok = truncate_and_extend_file(DestinationHdl, - DestinationValid, ExpectedSize); - true -> - Tmp = filename:rootname(Destination) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = - file:open(form_filename(Tmp), - [read, write, raw, binary, - read_ahead, delayed_write]), - Worklist = - lists:dropwhile( - fun ({_, _, _, Offset, _, _}) - when Offset /= DestinationContiguousTop -> - %% it cannot be that Offset == - %% DestinationContiguousTop because if it - %% was then DestinationContiguousTop would - %% have been extended by TotalSize - Offset < DestinationContiguousTop - %% Given expected access patterns, I suspect - %% that the list should be naturally sorted - %% as we require, however, we need to - %% enforce it anyway - end, sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Destination, - '_', '_', '_'}))), - ok = copy_messages( - Worklist, DestinationContiguousTop, DestinationValid, - DestinationHdl, TmpHdl, Destination, State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage from - %% Destination, and MsgLocationDets has been updated to - %% reflect compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file:position(TmpHdl, {bof, 0}), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, ExpectedSize), - {ok, TmpSize} = file:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file:sync(DestinationHdl), - ok = file:close(TmpHdl), - ok = file:delete(form_filename(Tmp)) - end, - SourceWorkList = - sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Source, - '_', '_', '_'})), - ok = copy_messages(SourceWorkList, DestinationValid, ExpectedSize, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file:sync(DestinationHdl), - ok = file:close(SourceHdl), - ok = file:close(DestinationHdl), - ok = file:delete(form_filename(Source)), - State. - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, State) -> - {FinalOffset, BlockStart1, BlockEnd1} = - lists:foldl( - fun ({MsgId, RefCount, _Source, Offset, TotalSize, IsPersistent}, - {CurOffset, BlockStart, BlockEnd}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - Size = TotalSize + ?FILE_PACKING_ADJUSTMENT, - %% update MsgLocationDets to reflect change of file and offset - ok = dets_ets_insert - (State, {MsgId, RefCount, Destination, - CurOffset, TotalSize, IsPersistent}), - NextOffset = CurOffset + Size, - if BlockStart =:= undefined -> - %% base case, called only for the first list elem - {NextOffset, Offset, Offset + Size}; - Offset =:= BlockEnd -> - %% extend the current block because the next - %% msg follows straight on - {NextOffset, BlockStart, BlockEnd + Size}; - true -> - %% found a gap, so actually do the work for - %% the previous block - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file:position(SourceHdl, {bof, BlockStart}), - {ok, BSize} = - file:copy(SourceHdl, DestinationHdl, BSize), - {NextOffset, Offset, Offset + Size} - end - end, {InitOffset, undefined, undefined}, WorkList), - %% do the last remaining block - BSize1 = BlockEnd1 - BlockStart1, - {ok, BlockStart1} = file:position(SourceHdl, {bof, BlockStart1}), - {ok, BSize1} = file:copy(SourceHdl, DestinationHdl, BSize1), - ok. - -close_file(File, State = #dqstate { read_file_handles = - {ReadHdls, ReadHdlsAge} }) -> - case dict:find(File, ReadHdls) of - error -> - State; - {ok, {Hdl, Then}} -> - ok = file:close(Hdl), - State #dqstate { read_file_handles = - { dict:erase(File, ReadHdls), - gb_trees:delete(Then, ReadHdlsAge) } } - end. - -delete_empty_files(File, Acc, #dqstate { file_summary = FileSummary }) -> - [{File, ValidData, _ContiguousTop, Left, Right}] = - ets:lookup(FileSummary, File), - case ValidData of - %% we should NEVER find the current file in here hence right - %% should always be a file, not undefined - 0 -> - case {Left, Right} of - {undefined, _} when not (is_atom(Right)) -> - %% the eldest file is empty. YAY! - %% left is the 4th field - true = - ets:update_element(FileSummary, Right, {4, undefined}); - {_, _} when not (is_atom(Right)) -> - %% left is the 4th field - true = ets:update_element(FileSummary, Right, {4, Left}), - %% right is the 5th field - true = ets:update_element(FileSummary, Left, {5, Right}) - end, - true = ets:delete(FileSummary, File), - ok = file:delete(form_filename(File)), - Acc; - _ -> [File|Acc] - end. - -%% ---- DISK RECOVERY ---- - -add_index() -> - case mnesia:add_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - {aborted,{already_exists,rabbit_disk_queue,_}} -> ok; - E -> E - end. - -del_index() -> - case mnesia:del_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - %% hmm, something weird must be going on, but it's probably - %% not the end of the world - {aborted, {no_exists, rabbit_disk_queue,_}} -> ok; - E1 -> E1 - end. - -load_from_disk(State) -> - %% sorted so that smallest number is first. which also means - %% eldest file (left-most) first - ok = add_index(), - {Files, TmpFiles} = get_disk_queue_files(), - ok = recover_crashed_compactions(Files, TmpFiles), - %% There should be no more tmp files now, so go ahead and load the - %% whole lot - State1 = load_messages(undefined, Files, State), - %% Finally, check there is nothing in mnesia which we haven't - %% loaded - State2 = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {State6, FinalQ, MsgSeqIds2, _Len} = - mnesia:foldl( - fun (#dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = {Q, SeqId} }, - {State3, OldQ, MsgSeqIds, Len}) -> - {State4, MsgSeqIds1, Len1} = - case {OldQ == Q, MsgSeqIds} of - {true, _} when Len < ?BATCH_SIZE -> - {State3, MsgSeqIds, Len}; - {false, []} -> {State3, MsgSeqIds, Len}; - {_, _} -> - {ok, State5} = - remove_messages(Q, MsgSeqIds, - txn, State3), - {State5, [], 0} - end, - case dets_ets_lookup(State4, MsgId) of - [] -> ok = mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write), - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, true}] -> - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, false}] -> - {State4, Q, - [{MsgId, SeqId} | MsgSeqIds1], Len1+1} - end - end, {State1, undefined, [], 0}, rabbit_disk_queue), - {ok, State7} = - remove_messages(FinalQ, MsgSeqIds2, txn, State6), - State7 - end), - State8 = extract_sequence_numbers(State2), - ok = del_index(), - {ok, State8}. - -extract_sequence_numbers(State = #dqstate { sequences = Sequences }) -> - true = rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:read_lock_table(rabbit_disk_queue), - mnesia:foldl( - fun (#dq_msg_loc { queue_and_seq_id = {Q, SeqId} }, true) -> - NextWrite = SeqId + 1, - case ets:lookup(Sequences, Q) of - [] -> ets:insert_new(Sequences, - {Q, SeqId, NextWrite}); - [Orig = {Q, Read, Write}] -> - Repl = {Q, lists:min([Read, SeqId]), - lists:max([Write, NextWrite])}, - case Orig == Repl of - true -> true; - false -> ets:insert(Sequences, Repl) - end - end - end, true, rabbit_disk_queue) - end), - ok = remove_gaps_in_sequences(State), - State. - -remove_gaps_in_sequences(#dqstate { sequences = Sequences }) -> - %% read the comments at internal_requeue. - - %% Because we are at startup, we know that no sequence ids have - %% been issued (or at least, they were, but have been - %% forgotten). Therefore, we can nicely shuffle up and not - %% worry. Note that I'm choosing to shuffle up, but alternatively - %% we could shuffle downwards. However, I think there's greater - %% likelihood of gaps being at the bottom rather than the top of - %% the queue, so shuffling up should be the better bet. - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foreach( - fun ({Q, ReadSeqId, WriteSeqId}) -> - Gap = shuffle_up(Q, ReadSeqId-1, WriteSeqId-1, 0), - ReadSeqId1 = ReadSeqId + Gap, - true = ets:insert(Sequences, - {Q, ReadSeqId1, WriteSeqId}) - end, ets:match_object(Sequences, '_')) - end), - ok. - -shuffle_up(_Q, SeqId, SeqId, Gap) -> - Gap; -shuffle_up(Q, BaseSeqId, SeqId, Gap) -> - GapInc = - case mnesia:read(rabbit_disk_queue, {Q, SeqId}, write) of - [] -> 1; - [Obj] -> - case Gap of - 0 -> ok; - _ -> mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc { - queue_and_seq_id = {Q, SeqId + Gap }}, - write), - mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write) - end, - 0 - end, - shuffle_up(Q, BaseSeqId, SeqId - 1, Gap + GapInc). - -load_messages(undefined, [], - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName }) -> - true = ets:insert_new(FileSummary, {CurName, 0, 0, undefined, undefined}), - State; -load_messages(Left, [], State) -> - Num = list_to_integer(filename:rootname(Left)), - Offset = - case dets_ets_match_object(State, {'_', '_', Left, '_', '_', '_'}) of - [] -> 0; - L -> - [ {_MsgId, _RefCount, Left, MaxOffset, TotalSize, _IsPersistent} - | _ ] = sort_msg_locations_by_offset(false, L), - MaxOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT - end, - State #dqstate { current_file_num = Num, current_file_name = Left, - current_offset = Offset }; -load_messages(Left, [File|Files], - State = #dqstate { file_summary = FileSummary }) -> - %% [{MsgId, TotalSize, FileOffset}] - {ok, Messages} = scan_file_for_valid_messages(form_filename(File)), - {ValidMessagesRev, ValidTotalSize} = lists:foldl( - fun (Obj = {MsgId, IsPersistent, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) of - 0 -> {VMAcc, VTSAcc}; - RefCount -> - true = dets_ets_insert_new - (State, {MsgId, RefCount, File, - Offset, TotalSize, IsPersistent}), - {[Obj | VMAcc], - VTSAcc + TotalSize + ?FILE_PACKING_ADJUSTMENT - } - end - end, {[], 0}, Messages), - %% foldl reverses lists and find_contiguous_block_prefix needs - %% elems in the same order as from scan_file_for_valid_messages - {ContiguousTop, _} = find_contiguous_block_prefix( - lists:reverse(ValidMessagesRev)), - Right = case Files of - [] -> undefined; - [F|_] -> F - end, - true = ets:insert_new(FileSummary, - {File, ValidTotalSize, ContiguousTop, Left, Right}), - load_messages(File, Files, State). - -%% ---- DISK RECOVERY OF FAILED COMPACTION ---- - -recover_crashed_compactions(Files, TmpFiles) -> - lists:foreach(fun (TmpFile) -> - ok = recover_crashed_compactions1(Files, TmpFile) end, - TmpFiles), - ok. - -verify_messages_in_mnesia(MsgIds) -> - lists:foreach( - fun (MsgId) -> - true = 0 < erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) - end, MsgIds). - -grab_msg_id({MsgId, _IsPersistent, _TotalSize, _FileOffset}) -> - MsgId. - -recover_crashed_compactions1(Files, TmpFile) -> - NonTmpRelatedFile = filename:rootname(TmpFile) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFile, Files), - %% [{MsgId, TotalSize, FileOffset}] - {ok, UncorruptedMessagesTmp} = - scan_file_for_valid_messages(form_filename(TmpFile)), - MsgIdsTmp = lists:map(fun grab_msg_id/1, UncorruptedMessagesTmp), - %% all of these messages should appear in the mnesia table, - %% otherwise they wouldn't have been copied out - verify_messages_in_mnesia(MsgIdsTmp), - {ok, UncorruptedMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIds = lists:map(fun grab_msg_id/1, UncorruptedMessages), - %% 1) It's possible that everything in the tmp file is also in the - %% main file such that the main file is (prefix ++ - %% tmpfile). This means that compaction failed immediately - %% prior to the final step of deleting the tmp file. Plan: just - %% delete the tmp file - %% 2) It's possible that everything in the tmp file is also in the - %% main file but with holes throughout (or just somthing like - %% main = (prefix ++ hole ++ tmpfile)). This means that - %% compaction wrote out the tmp file successfully and then - %% failed. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 3) It's possible that everything in the tmp file is also in the - %% main file but such that the main file does not end with tmp - %% file (and there are valid messages in the suffix; main = - %% (prefix ++ tmpfile[with extra holes?] ++ suffix)). This - %% means that compaction failed as we were writing out the tmp - %% file. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 4) It's possible that there are messages in the tmp file which - %% are not in the main file. This means that writing out the - %% tmp file succeeded, but then we failed as we were copying - %% them back over to the main file, after truncating the main - %% file. As the main file has already been truncated, it should - %% consist only of valid messages. Plan: Truncate the main file - %% back to before any of the files in the tmp file and copy - %% them over again - case lists:all(fun (MsgId) -> lists:member(MsgId, MsgIds) end, MsgIdsTmp) of - true -> %% we're in case 1, 2 or 3 above. Just delete the tmp file - %% note this also catches the case when the tmp file - %% is empty - ok = file:delete(TmpFile); - _False -> - %% we're in case 4 above. Check that everything in the - %% main file is a valid message in mnesia - verify_messages_in_mnesia(MsgIds), - %% The main file should be contiguous - {Top, MsgIds} = find_contiguous_block_prefix(UncorruptedMessages), - %% we should have that none of the messages in the prefix - %% are in the tmp file - true = lists:all(fun (MsgId) -> - not (lists:member(MsgId, MsgIdsTmp)) - end, MsgIds), - {ok, MainHdl} = file:open(form_filename(NonTmpRelatedFile), - [write, raw, binary, delayed_write]), - {ok, Top} = file:position(MainHdl, Top), - %% wipe out any rubbish at the end of the file - ok = file:truncate(MainHdl), - %% there really could be rubbish at the end of the file - - %% we could have failed after the extending truncate. - %% Remember the head of the list will be the highest entry - %% in the file - [{_, _, TmpTopTotalSize, TmpTopOffset}|_] = UncorruptedMessagesTmp, - TmpSize = TmpTopOffset + TmpTopTotalSize + ?FILE_PACKING_ADJUSTMENT, - ExpectedAbsPos = Top + TmpSize, - {ok, ExpectedAbsPos} = file:position(MainHdl, {cur, TmpSize}), - %% and now extend the main file as big as necessary in a - %% single move if we run out of disk space, this truncate - %% could fail, but we still aren't risking losing data - ok = file:truncate(MainHdl), - {ok, TmpHdl} = file:open(form_filename(TmpFile), - [read, raw, binary, read_ahead]), - {ok, TmpSize} = file:copy(TmpHdl, MainHdl, TmpSize), - ok = file:close(MainHdl), - ok = file:close(TmpHdl), - ok = file:delete(TmpFile), - - {ok, MainMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIdsMain = lists:map(fun grab_msg_id/1, MainMessages), - %% check that everything in MsgIds is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIds), - %% check that everything in MsgIdsTmp is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIdsTmp) - end, - ok. - -%% this assumes that the messages are ordered such that the highest -%% address is at the head of the list. This matches what -%% scan_file_for_valid_messages produces -find_contiguous_block_prefix([]) -> {0, []}; -find_contiguous_block_prefix([ {MsgId, _IsPersistent, TotalSize, Offset} - | Tail]) -> - case find_contiguous_block_prefix(Tail, Offset, [MsgId]) of - {ok, Acc} -> {Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - lists:reverse(Acc)}; - Res -> Res - end. -find_contiguous_block_prefix([], 0, Acc) -> - {ok, Acc}; -find_contiguous_block_prefix([], _N, _Acc) -> - {0, []}; -find_contiguous_block_prefix([{MsgId, _IsPersistent, TotalSize, Offset} | Tail], - ExpectedOffset, Acc) - when ExpectedOffset =:= Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT -> - find_contiguous_block_prefix(Tail, Offset, [MsgId|Acc]); -find_contiguous_block_prefix(List, _ExpectedOffset, _Acc) -> - find_contiguous_block_prefix(List). - -file_name_sort(A, B) -> - ANum = list_to_integer(filename:rootname(A)), - BNum = list_to_integer(filename:rootname(B)), - ANum < BNum. - -get_disk_queue_files() -> - DQFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION, base_directory()), - DQFilesSorted = lists:sort(fun file_name_sort/2, DQFiles), - DQTFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION_TMP, base_directory()), - DQTFilesSorted = lists:sort(fun file_name_sort/2, DQTFiles), - {DQFilesSorted, DQTFilesSorted}. - -%% ---- RAW READING AND WRITING OF FILES ---- - -append_message(FileHdl, MsgId, MsgBody, IsPersistent) when is_binary(MsgBody) -> - BodySize = size(MsgBody), - MsgIdBin = term_to_binary(MsgId), - MsgIdBinSize = size(MsgIdBin), - TotalSize = BodySize + MsgIdBinSize, - StopByte = case IsPersistent of - true -> ?WRITE_OK_PERSISTENT; - false -> ?WRITE_OK_TRANSIENT - end, - case file:write(FileHdl, <>) of - ok -> {ok, TotalSize}; - KO -> KO - end. - -read_message_at_offset(FileHdl, Offset, TotalSize) -> - TotalSizeWriteOkBytes = TotalSize + 1, - case file:position(FileHdl, {bof, Offset}) of - {ok, Offset} -> - case file:read(FileHdl, TotalSize + ?FILE_PACKING_ADJUSTMENT) of - {ok, <>} -> - BodySize = TotalSize - MsgIdBinSize, - case Rest of - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_TRANSIENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, false, BodySize}}; - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_PERSISTENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, true, BodySize}} - end; - KO -> KO - end; - KO -> KO - end. - -scan_file_for_valid_messages(File) -> - {ok, Hdl} = file:open(File, [raw, binary, read]), - Valid = scan_file_for_valid_messages(Hdl, 0, []), - %% if something really bad's happened, the close could fail, but ignore - file:close(Hdl), - Valid. - -scan_file_for_valid_messages(FileHdl, Offset, Acc) -> - case read_next_file_entry(FileHdl, Offset) of - {ok, eof} -> {ok, Acc}; - {ok, {corrupted, NextOffset}} -> - scan_file_for_valid_messages(FileHdl, NextOffset, Acc); - {ok, {ok, MsgId, IsPersistent, TotalSize, NextOffset}} -> - scan_file_for_valid_messages( - FileHdl, NextOffset, - [{MsgId, IsPersistent, TotalSize, Offset} | Acc]); - _KO -> - %% bad message, but we may still have recovered some valid messages - {ok, Acc} - end. - -read_next_file_entry(FileHdl, Offset) -> - TwoIntegers = 2 * ?INTEGER_SIZE_BYTES, - case file:read(FileHdl, TwoIntegers) of - {ok, - <>} -> - case {TotalSize =:= 0, MsgIdBinSize =:= 0} of - {true, _} -> {ok, eof}; %% Nothing we can do other than stop - {false, true} -> - %% current message corrupted, try skipping past it - ExpectedAbsPos = - Offset + ?FILE_PACKING_ADJUSTMENT + TotalSize, - case file:position(FileHdl, {cur, TotalSize + 1}) of - {ok, ExpectedAbsPos} -> - {ok, {corrupted, ExpectedAbsPos}}; - {ok, _SomeOtherPos} -> - {ok, eof}; %% seek failed, so give up - KO -> KO - end; - {false, false} -> %% all good, let's continue - case file:read(FileHdl, MsgIdBinSize) of - {ok, <>} -> - ExpectedAbsPos = Offset + TwoIntegers + TotalSize, - case file:position(FileHdl, - {cur, TotalSize - MsgIdBinSize} - ) of - {ok, ExpectedAbsPos} -> - NextOffset = Offset + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - case file:read(FileHdl, 1) of - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - false, TotalSize, NextOffset}}; - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - true, TotalSize, NextOffset}}; - {ok, _SomeOtherData} -> - {ok, {corrupted, NextOffset}}; - KO -> KO - end; - {ok, _SomeOtherPos} -> - %% seek failed, so give up - {ok, eof}; - KO -> KO - end; - eof -> {ok, eof}; - KO -> KO - end - end; - eof -> {ok, eof}; - KO -> KO - end. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl index 3aa2989a..2be00503 100644 --- a/src/rabbit_guid.erl +++ b/src/rabbit_guid.erl @@ -42,7 +42,6 @@ terminate/2, code_change/3]). -define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_guid"). -record(state, {serial}). @@ -60,24 +59,17 @@ %%---------------------------------------------------------------------------- start_link() -> + %% The persister can get heavily loaded, and we don't want that to + %% impact guid generation. We therefore keep the serial in a + %% separate process rather than calling rabbit_persister:serial/0 + %% directly in the functions below. gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(mnesia:system_info(directory), ?SERIAL_FILENAME), - Serial = case file:read_file(Filename) of - {ok, Content} -> - binary_to_term(Content); - {error, _} -> - 0 - end, - ok = file:write_file(Filename, term_to_binary(Serial + 1)), - Serial. + [rabbit_persister:serial()], []). %% generate a guid that is monotonically increasing per process. %% %% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. +%% persistent message store hasn't been deleted. guid() -> %% We don't use erlang:now() here because a) it may return %% duplicates when the system clock has been rewound prior to a @@ -85,7 +77,7 @@ guid() -> %% now() to move ahead of the system time), and b) it is really %% slow since it takes a global lock and makes a system call. %% - %% A persisted serial number, in combination with self/0 (which + %% rabbit_persister:serial/0, in combination with self/0 (which %% includes the node name) uniquely identifies a process in space %% and time. We combine that with a process-local counter to give %% us a GUID that is monotonically increasing per process. diff --git a/src/rabbit_memsup.erl b/src/rabbit_memsup.erl deleted file mode 100644 index 5f242881..00000000 --- a/src/rabbit_memsup.erl +++ /dev/null @@ -1,126 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0]). - --record(state, {memory_fraction, - timeout, - timer, - mod, - mod_state - }). - --define(SERVER, memsup). %% must be the same as the standard memsup - --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (atom()) -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(update/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -update() -> - gen_server:cast(?SERVER, update). - -%%---------------------------------------------------------------------------- - -init([Mod]) -> - Fraction = os_mon:get_env(memsup, system_memory_high_watermark), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - InitState = Mod:init(), - State = #state { memory_fraction = Fraction, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - mod = Mod, - mod_state = Mod:update(Fraction, InitState) }, - {ok, State}. - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% Export the same API as the real memsup. Note that -%% get_sysmem_high_watermark gives an int in the range 0 - 100, while -%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. -handle_call(get_sysmem_high_watermark, _From, State) -> - {reply, trunc(100 * State#state.memory_fraction), State}; - -handle_call({set_sysmem_high_watermark, Float}, _From, State) -> - {reply, ok, State#state{memory_fraction = Float}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_data, _From, - State = #state { mod = Mod, mod_state = ModState }) -> - {reply, Mod:get_memory_data(ModState), State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State = #state { memory_fraction = MemoryFraction, - mod = Mod, mod_state = ModState }) -> - ModState1 = Mod:update(MemoryFraction, ModState), - {noreply, State #state { mod_state = ModState1 }}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_memsup_darwin.erl b/src/rabbit_memsup_darwin.erl deleted file mode 100644 index 990c5b99..00000000 --- a/src/rabbit_memsup_darwin.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup_darwin). - --export([init/0, update/2, get_memory_data/1]). - --record(state, {alarmed, - total_memory, - allocated_memory}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). - --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). - --endif. - -%%---------------------------------------------------------------------------- - -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. - -update(MemoryFraction, State = #state{ alarmed = Alarmed }) -> - File = os:cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), - PageSize = dict:fetch(page_size, Dict), - Inactive = dict:fetch('Pages inactive', Dict), - Active = dict:fetch('Pages active', Dict), - Free = dict:fetch('Pages free', Dict), - Wired = dict:fetch('Pages wired down', Dict), - MemTotal = PageSize * (Inactive + Active + Free + Wired), - MemUsed = PageSize * (Active + Wired), - NewAlarmed = MemUsed / MemTotal > MemoryFraction, - case {Alarmed, NewAlarmed} of - {false, true} -> - alarm_handler:set_alarm({system_memory_high_watermark, []}); - {true, false} -> - alarm_handler:clear_alarm(system_memory_high_watermark); - _ -> - ok - end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. - -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. - -%%---------------------------------------------------------------------------- - -%% A line looks like "Foo bar: 123456." -parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. diff --git a/src/rabbit_memsup_linux.erl b/src/rabbit_memsup_linux.erl index 460fd88f..ffdc7e99 100644 --- a/src/rabbit_memsup_linux.erl +++ b/src/rabbit_memsup_linux.erl @@ -31,36 +31,74 @@ -module(rabbit_memsup_linux). --export([init/0, update/2, get_memory_data/1]). +-behaviour(gen_server). --record(state, {alarmed, - total_memory, - allocated_memory}). +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([update/0]). + +-define(SERVER, memsup). %% must be the same as the standard memsup + +-define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). + +-record(state, {memory_fraction, alarmed, timeout, timer}). %%---------------------------------------------------------------------------- -ifdef(use_specs). --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(update/0 :: () -> 'ok'). + +-endif. --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). +%%---------------------------------------------------------------------------- --endif. +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + + +update() -> + gen_server:cast(?SERVER, update). %%---------------------------------------------------------------------------- -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. +init(_Args) -> + Fraction = os_mon:get_env(memsup, system_memory_high_watermark), + TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), + {ok, #state{alarmed = false, + memory_fraction = Fraction, + timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, + timer = TRef}}. -update(MemoryFraction, State = #state { alarmed = Alarmed }) -> +start_timer(Timeout) -> + {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), + TRef. + +%% Export the same API as the real memsup. Note that +%% get_sysmem_high_watermark gives an int in the range 0 - 100, while +%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. +handle_call(get_sysmem_high_watermark, _From, State) -> + {reply, trunc(100 * State#state.memory_fraction), State}; + +handle_call({set_sysmem_high_watermark, Float}, _From, State) -> + {reply, ok, State#state{memory_fraction = Float}}; + +handle_call(get_check_interval, _From, State) -> + {reply, State#state.timeout, State}; + +handle_call({set_check_interval, Timeout}, _From, State) -> + {ok, cancel} = timer:cancel(State#state.timer), + {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; + +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast(update, State = #state{alarmed = Alarmed, + memory_fraction = MemoryFraction}) -> File = read_proc_file("/proc/meminfo"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), @@ -78,11 +116,19 @@ update(MemoryFraction, State = #state { alarmed = Alarmed }) -> _ -> ok end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. + {noreply, State#state{alarmed = NewAlarmed}}; + +handle_cast(_Request, State) -> + {noreply, State}. + +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok. -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. +code_change(_OldVsn, State, _Extra) -> + {ok, State}. %%---------------------------------------------------------------------------- @@ -106,10 +152,5 @@ read_proc_file(IoDevice, Acc) -> %% A line looks like "FooBar: 123456 kB" parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. + [Name, Value | _] = string:tokens(Line, ": "), + {list_to_atom(Name), list_to_integer(Value)}. diff --git a/src/rabbit_mixed_queue.erl b/src/rabbit_mixed_queue.erl deleted file mode 100644 index 4b0810a8..00000000 --- a/src/rabbit_mixed_queue.erl +++ /dev/null @@ -1,596 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_mixed_queue). - --include("rabbit.hrl"). - --export([init/2]). - --export([publish/2, publish_delivered/2, deliver/1, ack/2, - tx_publish/2, tx_commit/3, tx_cancel/2, requeue/2, purge/1, - length/1, is_empty/1, delete_queue/1, maybe_prefetch/1]). - --export([to_disk_only_mode/2, to_mixed_mode/2, info/1, - estimate_queue_memory_and_reset_counters/1]). - --record(mqstate, { mode, - msg_buf, - queue, - is_durable, - length, - memory_size, - memory_gain, - memory_loss, - prefetcher - } - ). - --define(TO_DISK_MAX_FLUSH_SIZE, 100000). - --ifdef(use_specs). - --type(mode() :: ( 'disk' | 'mixed' )). --type(mqstate() :: #mqstate { mode :: mode(), - msg_buf :: queue(), - queue :: queue_name(), - is_durable :: bool(), - length :: non_neg_integer(), - memory_size :: (non_neg_integer() | 'undefined'), - memory_gain :: (non_neg_integer() | 'undefined'), - memory_loss :: (non_neg_integer() | 'undefined'), - prefetcher :: (pid() | 'undefined') - }). --type(acktag() :: ( 'noack' | { non_neg_integer(), non_neg_integer() })). --type(okmqs() :: {'ok', mqstate()}). - --spec(init/2 :: (queue_name(), bool()) -> okmqs()). --spec(publish/2 :: (message(), mqstate()) -> okmqs()). --spec(publish_delivered/2 :: (message(), mqstate()) -> - {'ok', acktag(), mqstate()}). --spec(deliver/1 :: (mqstate()) -> - {('empty' | {message(), bool(), acktag(), non_neg_integer()}), - mqstate()}). --spec(ack/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(tx_publish/2 :: (message(), mqstate()) -> okmqs()). --spec(tx_commit/3 :: ([message()], [acktag()], mqstate()) -> okmqs()). --spec(tx_cancel/2 :: ([message()], mqstate()) -> okmqs()). --spec(requeue/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(purge/1 :: (mqstate()) -> okmqs()). - --spec(delete_queue/1 :: (mqstate()) -> {'ok', mqstate()}). - --spec(length/1 :: (mqstate()) -> non_neg_integer()). --spec(is_empty/1 :: (mqstate()) -> bool()). - --spec(to_disk_only_mode/2 :: ([message()], mqstate()) -> okmqs()). --spec(to_mixed_mode/2 :: ([message()], mqstate()) -> okmqs()). - --spec(estimate_queue_memory_and_reset_counters/1 :: (mqstate()) -> - {mqstate(), non_neg_integer(), non_neg_integer(), - non_neg_integer()}). --spec(info/1 :: (mqstate()) -> mode()). - --endif. - -init(Queue, IsDurable) -> - Len = rabbit_disk_queue:length(Queue), - MsgBuf = inc_queue_length(Queue, queue:new(), Len), - Size = rabbit_disk_queue:foldl( - fun ({Msg = #basic_message { is_persistent = true }, - _Size, _IsDelivered, _AckTag}, Acc) -> - Acc + size_of_message(Msg) - end, 0, Queue), - {ok, #mqstate { mode = disk, msg_buf = MsgBuf, queue = Queue, - is_durable = IsDurable, length = Len, - memory_size = Size, memory_gain = undefined, - memory_loss = undefined, prefetcher = undefined }}. - -size_of_message( - #basic_message { content = #content { payload_fragments_rev = Payload }}) -> - lists:foldl(fun (Frag, SumAcc) -> - SumAcc + size(Frag) - end, 0, Payload). - -to_disk_only_mode(_TxnMessages, State = #mqstate { mode = disk }) -> - {ok, State}; -to_disk_only_mode(TxnMessages, State = - #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, prefetcher = Prefetcher - }) -> - rabbit_log:info("Converting queue to disk only mode: ~p~n", [Q]), - State1 = State #mqstate { mode = disk }, - {MsgBuf1, State2} = - case Prefetcher of - undefined -> {MsgBuf, State1}; - _ -> - case rabbit_queue_prefetcher:drain_and_stop(Prefetcher) of - empty -> {MsgBuf, State1}; - {Fetched, Len} -> - State3 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State1), - {queue:join(Fetched, MsgBuf2), State3} - end - end, - %% We enqueue _everything_ here. This means that should a message - %% already be in the disk queue we must remove it and add it back - %% in. Fortunately, by using requeue, we avoid rewriting the - %% message on disk. - %% Note we also batch together messages on disk so that we minimise - %% the calls to requeue. - {ok, MsgBuf3} = - send_messages_to_disk(IsDurable, Q, MsgBuf1, 0, 0, [], queue:new()), - %% tx_publish txn messages. Some of these will have been already - %% published if they really are durable and persistent which is - %% why we can't just use our own tx_publish/2 function (would end - %% up publishing twice, so refcount would go wrong in disk_queue). - lists:foreach( - fun (Msg = #basic_message { is_persistent = IsPersistent }) -> - ok = case IsDurable andalso IsPersistent of - true -> ok; - _ -> rabbit_disk_queue:tx_publish(Msg) - end - end, TxnMessages), - garbage_collect(), - {ok, State2 #mqstate { msg_buf = MsgBuf3, prefetcher = undefined }}. - -send_messages_to_disk(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf) -> - case queue:out(Queue) of - {empty, _Queue} -> - ok = flush_messages_to_disk_queue(Q, Commit), - [] = flush_requeue_to_disk_queue(Q, RequeueCount, []), - {ok, MsgBuf}; - {{value, {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered}}, Queue1} -> - case IsDurable andalso IsPersistent of - true -> %% it's already in the Q - send_messages_to_disk( - IsDurable, Q, Queue1, PublishCount, RequeueCount + 1, - Commit, inc_queue_length(Q, MsgBuf, 1)); - false -> - republish_message_to_disk_queue( - IsDurable, Q, Queue1, PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered) - end; - {{value, {Msg, IsDelivered, _AckTag}}, Queue1} -> - %% these have come via the prefetcher, so are no longer in - %% the disk queue so they need to be republished - republish_message_to_disk_queue(IsDelivered, Q, Queue1, - PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered); - {{value, {Q, Count}}, Queue1} -> - send_messages_to_disk(IsDurable, Q, Queue1, PublishCount, - RequeueCount + Count, Commit, - inc_queue_length(Q, MsgBuf, Count)) - end. - -republish_message_to_disk_queue(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf, Msg = - #basic_message { guid = MsgId }, IsDelivered) -> - Commit1 = flush_requeue_to_disk_queue(Q, RequeueCount, Commit), - ok = rabbit_disk_queue:tx_publish(Msg), - {PublishCount1, Commit2} = - case PublishCount == ?TO_DISK_MAX_FLUSH_SIZE of - true -> ok = flush_messages_to_disk_queue(Q, Commit1), - {1, [{MsgId, IsDelivered}]}; - false -> {PublishCount + 1, [{MsgId, IsDelivered} | Commit1]} - end, - send_messages_to_disk(IsDurable, Q, Queue, PublishCount1, 0, - Commit2, inc_queue_length(Q, MsgBuf, 1)). - -flush_messages_to_disk_queue(_Q, []) -> - ok; -flush_messages_to_disk_queue(Q, Commit) -> - rabbit_disk_queue:tx_commit(Q, lists:reverse(Commit), []). - -flush_requeue_to_disk_queue(_Q, 0, Commit) -> - Commit; -flush_requeue_to_disk_queue(Q, RequeueCount, Commit) -> - ok = flush_messages_to_disk_queue(Q, Commit), - ok = rabbit_disk_queue:requeue_next_n(Q, RequeueCount), - []. - -to_mixed_mode(_TxnMessages, State = #mqstate { mode = mixed }) -> - {ok, State}; -to_mixed_mode(TxnMessages, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable }) -> - rabbit_log:info("Converting queue to mixed mode: ~p~n", [Q]), - %% The queue has a token just saying how many msgs are on disk - %% (this is already built for us when in disk mode). - %% Don't actually do anything to the disk - %% Don't start prefetcher just yet because the queue maybe busy - - %% wait for hibernate timeout in the amqqueue_process. - - %% Remove txn messages from disk which are neither persistent and - %% durable. This is necessary to avoid leaks. This is also pretty - %% much the inverse behaviour of our own tx_cancel/2 which is why - %% we're not using it. - Cancel = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent }, Acc) -> - case IsDurable andalso IsPersistent of - true -> Acc; - false -> [Msg #basic_message.guid | Acc] - end - end, [], TxnMessages), - ok = if Cancel == [] -> ok; - true -> rabbit_disk_queue:tx_cancel(Cancel) - end, - garbage_collect(), - {ok, State #mqstate { mode = mixed }}. - -inc_queue_length(_Q, MsgBuf, 0) -> - MsgBuf; -inc_queue_length(Q, MsgBuf, Count) -> - {NewCount, MsgBufTail} = - case queue:out_r(MsgBuf) of - {empty, MsgBuf1} -> {Count, MsgBuf1}; - {{value, {Q, Len}}, MsgBuf1} -> {Len + Count, MsgBuf1}; - {{value, _}, _MsgBuf1} -> {Count, MsgBuf} - end, - queue:in({Q, NewCount}, MsgBufTail). - -dec_queue_length(Count, State = #mqstate { queue = Q, msg_buf = MsgBuf }) -> - case queue:out(MsgBuf) of - {{value, {Q, Len}}, MsgBuf1} -> - case Len of - Count -> - maybe_prefetch(State #mqstate { msg_buf = MsgBuf1 }); - _ when Len > Count -> - State #mqstate { msg_buf = queue:in_r({Q, Len-Count}, - MsgBuf1)} - end; - _ -> State - end. - -maybe_prefetch(State = #mqstate { prefetcher = undefined, - mode = mixed, - msg_buf = MsgBuf, - queue = Q }) -> - case queue:peek(MsgBuf) of - {value, {Q, Count}} -> {ok, Prefetcher} = - rabbit_queue_prefetcher:start_link(Q, Count), - State #mqstate { prefetcher = Prefetcher }; - _ -> State - end; -maybe_prefetch(State) -> - State. - -publish(Msg, State = #mqstate { mode = disk, queue = Q, length = Length, - msg_buf = MsgBuf, memory_size = QSize, - memory_gain = Gain }) -> - MsgBuf1 = inc_queue_length(Q, MsgBuf, 1), - ok = rabbit_disk_queue:publish(Q, Msg, false), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_gain = Gain + MsgSize, - memory_size = QSize + MsgSize, - msg_buf = MsgBuf1, length = Length + 1 }}; -publish(Msg = #basic_message { is_persistent = IsPersistent }, State = - #mqstate { queue = Q, mode = mixed, is_durable = IsDurable, - msg_buf = MsgBuf, length = Length, memory_size = QSize, - memory_gain = Gain }) -> - ok = case IsDurable andalso IsPersistent of - true -> rabbit_disk_queue:publish(Q, Msg, false); - false -> ok - end, - MsgSize = size_of_message(Msg), - {ok, State #mqstate { msg_buf = queue:in({Msg, false}, MsgBuf), - length = Length + 1, memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -%% Assumption here is that the queue is empty already (only called via -%% attempt_immediate_delivery). -publish_delivered(Msg = - #basic_message { guid = MsgId, is_persistent = IsPersistent}, - State = - #mqstate { mode = Mode, is_durable = IsDurable, - queue = Q, length = 0, - memory_size = QSize, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:publish(Q, Msg, true), - MsgSize = size_of_message(Msg), - State1 = State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }, - case IsDurable andalso IsPersistent of - true -> - %% must call phantom_deliver otherwise the msg remains at - %% the head of the queue. This is synchronous, but - %% unavoidable as we need the AckTag - {MsgId, IsPersistent, true, AckTag, 0} = - rabbit_disk_queue:phantom_deliver(Q), - {ok, AckTag, State1}; - false -> - %% in this case, we don't actually care about the ack, so - %% auto ack it (asynchronously). - ok = rabbit_disk_queue:auto_ack_next_message(Q), - {ok, noack, State1} - end; -publish_delivered(Msg, State = - #mqstate { mode = mixed, length = 0, memory_size = QSize, - memory_gain = Gain }) -> - MsgSize = size_of_message(Msg), - {ok, noack, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -deliver(State = #mqstate { length = 0 }) -> - {empty, State}; -deliver(State = #mqstate { msg_buf = MsgBuf, queue = Q, - is_durable = IsDurable, length = Length, - prefetcher = Prefetcher }) -> - {{value, Value}, MsgBuf1} = queue:out(MsgBuf), - Rem = Length - 1, - State1 = State #mqstate { length = Rem }, - case Value of - {Msg = #basic_message { guid = MsgId, is_persistent = IsPersistent }, - IsDelivered} -> - AckTag = - case IsDurable andalso IsPersistent of - true -> - {MsgId, IsPersistent, IsDelivered, AckTag1, _PRem} - = rabbit_disk_queue:phantom_deliver(Q), - AckTag1; - false -> - noack - end, - State2 = maybe_prefetch(State1 #mqstate { msg_buf = MsgBuf1 }), - {{Msg, IsDelivered, AckTag, Rem}, State2}; - {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTag} -> - %% message has come via the prefetcher, thus it's been - %% delivered. If it's not persistent+durable, we should - %% ack it now - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, - State1 #mqstate { msg_buf = MsgBuf1 }}; - _ when Prefetcher == undefined -> - State2 = dec_queue_length(1, State1), - {Msg = #basic_message { is_persistent = IsPersistent }, - _Size, IsDelivered, AckTag, _PersistRem} - = rabbit_disk_queue:deliver(Q), - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, State2}; - _ -> - case rabbit_queue_prefetcher:drain(Prefetcher) of - empty -> deliver(State #mqstate { prefetcher = undefined }); - {Fetched, Len, Status} -> - State2 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State), - deliver(State2 #mqstate - { msg_buf = queue:join(Fetched, MsgBuf2), - prefetcher = case Status of - finished -> undefined; - continuing -> Prefetcher - end }) - end - end. - -maybe_ack(_Q, true, true, AckTag) -> - AckTag; -maybe_ack(Q, _, _, AckTag) -> - ok = rabbit_disk_queue:ack(Q, [AckTag]), - noack. - -remove_noacks(MsgsWithAcks) -> - lists:foldl( - fun ({Msg, noack}, {AccAckTags, AccSize}) -> - {AccAckTags, size_of_message(Msg) + AccSize}; - ({Msg, AckTag}, {AccAckTags, AccSize}) -> - {[AckTag | AccAckTags], size_of_message(Msg) + AccSize} - end, {[], 0}, MsgsWithAcks). - -ack(MsgsWithAcks, State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss }) -> - {AckTags, ASize} = remove_noacks(MsgsWithAcks), - ok = case AckTags of - [] -> ok; - _ -> rabbit_disk_queue:ack(Q, AckTags) - end, - State1 = State #mqstate { memory_size = QSize - ASize, - memory_loss = Loss + ASize }, - {ok, State1}. - -tx_publish(Msg = #basic_message { is_persistent = IsPersistent }, - State = #mqstate { mode = Mode, memory_size = QSize, - is_durable = IsDurable, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:tx_publish(Msg), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}; -tx_publish(Msg, State = #mqstate { mode = mixed, memory_size = QSize, - memory_gain = Gain }) -> - %% this message will reappear in the tx_commit, so ignore for now - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -only_msg_ids(Pubs) -> - lists:map(fun (Msg) -> {Msg #basic_message.guid, false} end, Pubs). - -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = disk, queue = Q, length = Length, - memory_size = QSize, memory_loss = Loss, - msg_buf = MsgBuf }) -> - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = if ([] == Publishes) andalso ([] == RealAcks) -> ok; - true -> rabbit_disk_queue:tx_commit(Q, only_msg_ids(Publishes), - RealAcks) - end, - Len = erlang:length(Publishes), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len), - memory_size = QSize - ASize, - memory_loss = Loss + ASize }}; -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, length = Length, - memory_size = QSize, memory_loss = Loss }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl(fun (Msg = #basic_message { is_persistent = IsPersistent }, - {Acc, MsgBuf2}) -> - Acc1 = - case IsPersistent andalso IsDurable of - true -> [ {Msg #basic_message.guid, false} - | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, false}, MsgBuf2)} - end, {[], MsgBuf}, Publishes), - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = case ([] == PersistentPubs) andalso ([] == RealAcks) of - true -> ok; - false -> rabbit_disk_queue:tx_commit( - Q, lists:reverse(PersistentPubs), RealAcks) - end, - {ok, State #mqstate { msg_buf = MsgBuf1, memory_size = QSize - ASize, - length = Length + erlang:length(Publishes), - memory_loss = Loss + ASize }}. - -tx_cancel(Publishes, State = #mqstate { mode = disk, memory_size = QSize, - memory_loss = Loss }) -> - {MsgIds, CSize} = - lists:foldl( - fun (Msg = #basic_message { guid = MsgId }, {MsgIdsAcc, CSizeAcc}) -> - {[MsgId | MsgIdsAcc], CSizeAcc + size_of_message(Msg)} - end, {[], 0}, Publishes), - ok = rabbit_disk_queue:tx_cancel(MsgIds), - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}; -tx_cancel(Publishes, State = #mqstate { mode = mixed, is_durable = IsDurable, - memory_size = QSize, - memory_loss = Loss }) -> - {PersistentPubs, CSize} = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, {Acc, CSizeAcc}) -> - CSizeAcc1 = CSizeAcc + size_of_message(Msg), - {case IsPersistent of - true -> [MsgId | Acc]; - _ -> Acc - end, CSizeAcc1} - end, {[], 0}, Publishes), - ok = - if IsDurable -> - rabbit_disk_queue:tx_cancel(PersistentPubs); - true -> ok - end, - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}. - -%% [{Msg, AckTag}] -requeue(MessagesWithAckTags, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable, - length = Length, - msg_buf = MsgBuf }) -> - %% here, we may have messages with no ack tags, because of the - %% fact they are not persistent, but nevertheless we want to - %% requeue them. This means publishing them delivered. - Requeue - = lists:foldl( - fun ({#basic_message { is_persistent = IsPersistent }, AckTag}, RQ) - when IsDurable andalso IsPersistent -> - [{AckTag, true} | RQ]; - ({Msg, noack}, RQ) -> - ok = case RQ == [] of - true -> ok; - false -> rabbit_disk_queue:requeue( - Q, lists:reverse(RQ)) - end, - ok = rabbit_disk_queue:publish(Q, Msg, true), - [] - end, [], MessagesWithAckTags), - ok = rabbit_disk_queue:requeue(Q, lists:reverse(Requeue)), - Len = erlang:length(MessagesWithAckTags), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len) }}; -requeue(MessagesWithAckTags, State = #mqstate { mode = mixed, queue = Q, - msg_buf = MsgBuf, - is_durable = IsDurable, - length = Length }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, AckTag}, - {Acc, MsgBuf2}) -> - Acc1 = - case IsDurable andalso IsPersistent of - true -> [{AckTag, true} | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, true}, MsgBuf2)} - end, {[], MsgBuf}, MessagesWithAckTags), - ok = case PersistentPubs of - [] -> ok; - _ -> rabbit_disk_queue:requeue(Q, lists:reverse(PersistentPubs)) - end, - {ok, State #mqstate {msg_buf = MsgBuf1, - length = Length + erlang:length(MessagesWithAckTags)}}. - -purge(State = #mqstate { queue = Q, mode = disk, length = Count, - memory_loss = Loss, memory_size = QSize }) -> - Count = rabbit_disk_queue:purge(Q), - {Count, State #mqstate { length = 0, memory_size = 0, - memory_loss = Loss + QSize }}; -purge(State = #mqstate { queue = Q, mode = mixed, length = Length, - memory_loss = Loss, memory_size = QSize, - prefetcher = Prefetcher }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - rabbit_disk_queue:purge(Q), - {Length, - State #mqstate { msg_buf = queue:new(), length = 0, memory_size = 0, - memory_loss = Loss + QSize, prefetcher = undefined }}. - -delete_queue(State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss, prefetcher = Prefetcher - }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - ok = rabbit_disk_queue:delete_queue(Q), - {ok, State #mqstate { length = 0, memory_size = 0, msg_buf = queue:new(), - memory_loss = Loss + QSize, prefetcher = undefined }}. - -length(#mqstate { length = Length }) -> - Length. - -is_empty(#mqstate { length = Length }) -> - 0 == Length. - -estimate_queue_memory_and_reset_counters(State = - #mqstate { memory_size = Size, memory_gain = Gain, memory_loss = Loss }) -> - {State #mqstate { memory_gain = 0, memory_loss = 0 }, 4 * Size, Gain, Loss}. - -info(#mqstate { mode = Mode }) -> - Mode. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index b40294f6..575ecb0a 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -144,31 +144,11 @@ table_definitions() -> {disc_copies, [node()]}]}, {rabbit_queue, [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}, - {rabbit_disk_queue, - [{record_name, dq_msg_loc}, - {type, set}, - {local_content, true}, - {attributes, record_info(fields, dq_msg_loc)}, - {disc_copies, [node()]}]} - ]. - -replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - not lists:member({local_content, true}, Attrs) - ]. - -non_replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - lists:member({local_content, true}, Attrs) - ]. + {attributes, record_info(fields, amqqueue)}]}]. table_names() -> [Tab || {Tab, _} <- table_definitions()]. -replicated_table_names() -> - [Tab || {Tab, _} <- replicated_table_definitions()]. - dir() -> mnesia:system_info(directory). ensure_mnesia_dir() -> @@ -193,8 +173,7 @@ ensure_mnesia_not_running() -> check_schema_integrity() -> %%TODO: more thorough checks - case catch [mnesia:table_info(Tab, version) - || Tab <- table_names()] of + case catch [mnesia:table_info(Tab, version) || Tab <- table_names()] of {'EXIT', Reason} -> {error, Reason}; _ -> ok end. @@ -274,11 +253,9 @@ init_db(ClusterNodes) -> WasDiskNode = mnesia:system_info(use_dir), IsDiskNode = ClusterNodes == [] orelse lists:member(node(), ClusterNodes), - ExtraNodes = ClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ExtraNodes) of + case mnesia:change_config(extra_db_nodes, ClusterNodes -- [node()]) of {ok, []} -> - case WasDiskNode of - true -> + if WasDiskNode and IsDiskNode -> case check_schema_integrity() of ok -> ok; @@ -293,18 +270,22 @@ init_db(ClusterNodes) -> ok = move_db(), ok = create_schema() end; - false -> - ok = create_schema() + WasDiskNode -> + throw({error, {cannot_convert_disk_node_to_ram_node, + ClusterNodes}}); + IsDiskNode -> + ok = create_schema(); + true -> + throw({error, {unable_to_contact_cluster_nodes, + ClusterNodes}}) end; {ok, [_|_]} -> - TableCopyType = case IsDiskNode of - true -> disc; - false -> ram - end, - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_non_replicated_table_copies(disc), - ok = create_local_replicated_table_copies(TableCopyType); + ok = wait_for_tables(), + ok = create_local_table_copies( + case IsDiskNode of + true -> disc; + false -> ram + end); {error, Reason} -> %% one reason we may end up here is if we try to join %% nodes together that are currently running standalone or @@ -355,27 +336,16 @@ create_tables() -> table_definitions()), ok. -create_local_replicated_table_copies(Type) -> - create_local_table_copies(Type, replicated_table_definitions()). - -create_local_non_replicated_table_copies(Type) -> - create_local_table_copies(Type, non_replicated_table_definitions()). - -create_local_table_copies(Type, TableDefinitions) -> +create_local_table_copies(Type) -> + ok = if Type /= ram -> create_local_table_copy(schema, disc_copies); + true -> ok + end, lists:foreach( fun({Tab, TabDef}) -> HasDiscCopies = - case lists:keysearch(disc_copies, 1, TabDef) of - false -> false; - {value, {disc_copies, List1}} -> - lists:member(node(), List1) - end, + lists:keymember(disc_copies, 1, TabDef), HasDiscOnlyCopies = - case lists:keysearch(disc_only_copies, 1, TabDef) of - false -> false; - {value, {disc_only_copies, List2}} -> - lists:member(node(), List2) - end, + lists:keymember(disc_only_copies, 1, TabDef), StorageType = case Type of disc -> @@ -396,7 +366,10 @@ create_local_table_copies(Type, TableDefinitions) -> end, ok = create_local_table_copy(Tab, StorageType) end, - TableDefinitions), + table_definitions()), + ok = if Type == ram -> create_local_table_copy(schema, ram_copies); + true -> ok + end, ok. create_local_table_copy(Tab, Type) -> @@ -411,16 +384,10 @@ create_local_table_copy(Tab, Type) -> end, ok. -wait_for_replicated_tables() -> - wait_for_tables(replicated_table_names()). - -wait_for_tables() -> - wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> +wait_for_tables() -> case check_schema_integrity() of ok -> - case mnesia:wait_for_tables(TableNames, 30000) of + case mnesia:wait_for_tables(table_names(), 30000) of ok -> ok; {timeout, BadTabs} -> throw({error, {timeout_waiting_for_tables, BadTabs}}); diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl new file mode 100644 index 00000000..d0d60ddf --- /dev/null +++ b/src/rabbit_persister.erl @@ -0,0 +1,523 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_persister). + +-behaviour(gen_server). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([transaction/1, extend_transaction/2, dirty_work/1, + commit_transaction/1, rollback_transaction/1, + force_snapshot/0, serial/0]). + +-include("rabbit.hrl"). + +-define(SERVER, ?MODULE). + +-define(LOG_BUNDLE_DELAY, 5). +-define(COMPLETE_BUNDLE_DELAY, 2). + +-define(HIBERNATE_AFTER, 10000). + +-define(MAX_WRAP_ENTRIES, 500). + +-define(PERSISTER_LOG_FORMAT_VERSION, {2, 4}). + +-record(pstate, {log_handle, entry_count, deadline, + pending_logs, pending_replies, + snapshot}). + +%% two tables for efficient persistency +%% one maps a key to a message +%% the other maps a key to one or more queues. +%% The aim is to reduce the overload of storing a message multiple times +%% when it appears in several queues. +-record(psnapshot, {serial, transactions, messages, queues}). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(qmsg() :: {amqqueue(), pkey()}). +-type(work_item() :: + {publish, message(), qmsg()} | + {deliver, qmsg()} | + {ack, qmsg()}). + +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(transaction/1 :: ([work_item()]) -> 'ok'). +-spec(extend_transaction/2 :: (txn(), [work_item()]) -> 'ok'). +-spec(dirty_work/1 :: ([work_item()]) -> 'ok'). +-spec(commit_transaction/1 :: (txn()) -> 'ok'). +-spec(rollback_transaction/1 :: (txn()) -> 'ok'). +-spec(force_snapshot/0 :: () -> 'ok'). +-spec(serial/0 :: () -> non_neg_integer()). + +-endif. + +%%---------------------------------------------------------------------------- + +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + +transaction(MessageList) -> + ?LOGDEBUG("transaction ~p~n", [MessageList]), + TxnKey = rabbit_guid:guid(), + gen_server:call(?SERVER, {transaction, TxnKey, MessageList}, infinity). + +extend_transaction(TxnKey, MessageList) -> + ?LOGDEBUG("extend_transaction ~p ~p~n", [TxnKey, MessageList]), + gen_server:cast(?SERVER, {extend_transaction, TxnKey, MessageList}). + +dirty_work(MessageList) -> + ?LOGDEBUG("dirty_work ~p~n", [MessageList]), + gen_server:cast(?SERVER, {dirty_work, MessageList}). + +commit_transaction(TxnKey) -> + ?LOGDEBUG("commit_transaction ~p~n", [TxnKey]), + gen_server:call(?SERVER, {commit_transaction, TxnKey}, infinity). + +rollback_transaction(TxnKey) -> + ?LOGDEBUG("rollback_transaction ~p~n", [TxnKey]), + gen_server:cast(?SERVER, {rollback_transaction, TxnKey}). + +force_snapshot() -> + gen_server:call(?SERVER, force_snapshot, infinity). + +serial() -> + gen_server:call(?SERVER, serial, infinity). + +%%-------------------------------------------------------------------- + +init(_Args) -> + process_flag(trap_exit, true), + FileName = base_filename(), + ok = filelib:ensure_dir(FileName), + Snapshot = #psnapshot{serial = 0, + transactions = dict:new(), + messages = ets:new(messages, []), + queues = ets:new(queues, [])}, + LogHandle = + case disk_log:open([{name, rabbit_persister}, + {head, current_snapshot(Snapshot)}, + {file, FileName}]) of + {ok, LH} -> LH; + {repaired, LH, {recovered, Recovered}, {badbytes, Bad}} -> + WarningFun = if + Bad > 0 -> fun rabbit_log:warning/2; + true -> fun rabbit_log:info/2 + end, + WarningFun("Repaired persister log - ~p recovered, ~p bad~n", + [Recovered, Bad]), + LH + end, + {Res, LoadedSnapshot} = internal_load_snapshot(LogHandle, Snapshot), + NewSnapshot = LoadedSnapshot#psnapshot{ + serial = LoadedSnapshot#psnapshot.serial + 1}, + case Res of + ok -> + ok = take_snapshot(LogHandle, NewSnapshot); + {error, Reason} -> + rabbit_log:error("Failed to load persister log: ~p~n", [Reason]), + ok = take_snapshot_and_save_old(LogHandle, NewSnapshot) + end, + State = #pstate{log_handle = LogHandle, + entry_count = 0, + deadline = infinity, + pending_logs = [], + pending_replies = [], + snapshot = NewSnapshot}, + {ok, State}. + +handle_call({transaction, Key, MessageList}, From, State) -> + NewState = internal_extend(Key, MessageList, State), + do_noreply(internal_commit(From, Key, NewState)); +handle_call({commit_transaction, TxnKey}, From, State) -> + do_noreply(internal_commit(From, TxnKey, State)); +handle_call(force_snapshot, _From, State) -> + do_reply(ok, flush(true, State)); +handle_call(serial, _From, + State = #pstate{snapshot = #psnapshot{serial = Serial}}) -> + do_reply(Serial, State); +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast({rollback_transaction, TxnKey}, State) -> + do_noreply(internal_rollback(TxnKey, State)); +handle_cast({dirty_work, MessageList}, State) -> + do_noreply(internal_dirty_work(MessageList, State)); +handle_cast({extend_transaction, TxnKey, MessageList}, State) -> + do_noreply(internal_extend(TxnKey, MessageList, State)); +handle_cast(_Msg, State) -> + {noreply, State}. + +handle_info(timeout, State = #pstate{deadline = infinity}) -> + State1 = flush(true, State), + %% TODO: Once we drop support for R11B-5, we can change this to + %% {noreply, State1, hibernate}; + proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State1]); +handle_info(timeout, State) -> + do_noreply(flush(State)); +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, State = #pstate{log_handle = LogHandle}) -> + flush(State), + disk_log:close(LogHandle), + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, flush(State)}. + +%%-------------------------------------------------------------------- + +internal_extend(Key, MessageList, State) -> + log_work(fun (ML) -> {extend_transaction, Key, ML} end, + MessageList, State). + +internal_dirty_work(MessageList, State) -> + log_work(fun (ML) -> {dirty_work, ML} end, + MessageList, State). + +internal_commit(From, Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {commit_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + complete(From, Unit, State#pstate{snapshot = NewSnapshot}). + +internal_rollback(Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {rollback_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +complete(From, Item, State = #pstate{deadline = ExistingDeadline, + pending_logs = Logs, + pending_replies = Waiting}) -> + State#pstate{deadline = compute_deadline( + ?COMPLETE_BUNDLE_DELAY, ExistingDeadline), + pending_logs = [Item | Logs], + pending_replies = [From | Waiting]}. + +%% This is made to limit disk usage by writing messages only once onto +%% disk. We keep a table associating pkeys to messages, and provided +%% the list of messages to output is left to right, we can guarantee +%% that pkeys will be a backreference to a message in memory when a +%% "tied" is met. +log_work(CreateWorkUnit, MessageList, + State = #pstate{ + snapshot = Snapshot = #psnapshot{ + messages = Messages}}) -> + Unit = CreateWorkUnit( + rabbit_misc:map_in_order( + fun(M = {publish, Message, QK = {_QName, PKey}}) -> + case ets:lookup(Messages, PKey) of + [_] -> {tied, QK}; + [] -> ets:insert(Messages, {PKey, Message}), + M + end; + (M) -> M + end, + MessageList)), + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +log(State = #pstate{deadline = ExistingDeadline, pending_logs = Logs}, + Message) -> + State#pstate{deadline = compute_deadline(?LOG_BUNDLE_DELAY, + ExistingDeadline), + pending_logs = [Message | Logs]}. + +base_filename() -> + rabbit_mnesia:dir() ++ "/rabbit_persister.LOG". + +take_snapshot(LogHandle, OldFileName, Snapshot) -> + ok = disk_log:sync(LogHandle), + %% current_snapshot is the Head (ie. first thing logged) + ok = disk_log:reopen(LogHandle, OldFileName, current_snapshot(Snapshot)). + +take_snapshot(LogHandle, Snapshot) -> + OldFileName = lists:flatten(base_filename() ++ ".previous"), + file:delete(OldFileName), + rabbit_log:info("Rolling persister log to ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +take_snapshot_and_save_old(LogHandle, Snapshot) -> + {MegaSecs, Secs, MicroSecs} = erlang:now(), + Timestamp = MegaSecs * 1000000 + Secs * 1000 + MicroSecs, + OldFileName = lists:flatten(io_lib:format("~s.saved.~p", + [base_filename(), Timestamp])), + rabbit_log:info("Saving persister log in ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +maybe_take_snapshot(Force, State = #pstate{entry_count = EntryCount, + log_handle = LH, + snapshot = Snapshot}) + when Force orelse EntryCount >= ?MAX_WRAP_ENTRIES -> + ok = take_snapshot(LH, Snapshot), + State#pstate{entry_count = 0}; +maybe_take_snapshot(_Force, State) -> + State. + +later_ms(DeltaMilliSec) -> + {MegaSec, Sec, MicroSec} = now(), + %% Note: not normalised. Unimportant for this application. + {MegaSec, Sec, MicroSec + (DeltaMilliSec * 1000)}. + +%% Result = B - A, more or less +time_diff({B1, B2, B3}, {A1, A2, A3}) -> + (B1 - A1) * 1000000 + (B2 - A2) + (B3 - A3) / 1000000.0 . + +compute_deadline(TimerDelay, infinity) -> + later_ms(TimerDelay); +compute_deadline(_TimerDelay, ExistingDeadline) -> + ExistingDeadline. + +compute_timeout(infinity) -> + ?HIBERNATE_AFTER; +compute_timeout(Deadline) -> + DeltaMilliSec = time_diff(Deadline, now()) * 1000.0, + if + DeltaMilliSec =< 1 -> + 0; + true -> + round(DeltaMilliSec) + end. + +do_noreply(State = #pstate{deadline = Deadline}) -> + {noreply, State, compute_timeout(Deadline)}. + +do_reply(Reply, State = #pstate{deadline = Deadline}) -> + {reply, Reply, State, compute_timeout(Deadline)}. + +flush(State) -> flush(false, State). + +flush(ForceSnapshot, State = #pstate{pending_logs = PendingLogs, + pending_replies = Waiting, + log_handle = LogHandle}) -> + State1 = if PendingLogs /= [] -> + disk_log:alog(LogHandle, lists:reverse(PendingLogs)), + State#pstate{entry_count = State#pstate.entry_count + 1}; + true -> + State + end, + State2 = maybe_take_snapshot(ForceSnapshot, State1), + if Waiting /= [] -> + ok = disk_log:sync(LogHandle), + lists:foreach(fun (From) -> gen_server:reply(From, ok) end, + Waiting); + true -> + ok + end, + State2#pstate{deadline = infinity, + pending_logs = [], + pending_replies = []}. + +current_snapshot(_Snapshot = #psnapshot{serial = Serial, + transactions= Ts, + messages = Messages, + queues = Queues}) -> + %% Avoid infinite growth of the table by removing messages not + %% bound to a queue anymore + prune_table(Messages, ets:foldl( + fun ({{_QName, PKey}, _Delivered}, S) -> + sets:add_element(PKey, S) + end, sets:new(), Queues)), + InnerSnapshot = {{serial, Serial}, + {txns, Ts}, + {messages, ets:tab2list(Messages)}, + {queues, ets:tab2list(Queues)}}, + ?LOGDEBUG("Inner snapshot: ~p~n", [InnerSnapshot]), + {persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + term_to_binary(InnerSnapshot)}. + +prune_table(Tab, Keys) -> + true = ets:safe_fixtable(Tab, true), + ok = prune_table(Tab, Keys, ets:first(Tab)), + true = ets:safe_fixtable(Tab, false). + +prune_table(_Tab, _Keys, '$end_of_table') -> ok; +prune_table(Tab, Keys, Key) -> + case sets:is_element(Key, Keys) of + true -> ok; + false -> ets:delete(Tab, Key) + end, + prune_table(Tab, Keys, ets:next(Tab, Key)). + +internal_load_snapshot(LogHandle, + Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + {K, [Loaded_Snapshot | Items]} = disk_log:chunk(LogHandle, start), + case check_version(Loaded_Snapshot) of + {ok, StateBin} -> + {{serial, Serial}, {txns, Ts}, {messages, Ms}, {queues, Qs}} = + binary_to_term(StateBin), + true = ets:insert(Messages, Ms), + true = ets:insert(Queues, Qs), + Snapshot1 = replay(Items, LogHandle, K, + Snapshot#psnapshot{ + serial = Serial, + transactions = Ts}), + Snapshot2 = requeue_messages(Snapshot1), + %% uncompleted transactions are discarded - this is TRTTD + %% since we only get into this code on node restart, so + %% any uncompleted transactions will have been aborted. + {ok, Snapshot2#psnapshot{transactions = dict:new()}}; + {error, Reason} -> {{error, Reason}, Snapshot} + end. + +check_version({persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + StateBin}) -> + {ok, StateBin}; +check_version({persist_snapshot, {vsn, Vsn}, _StateBin}) -> + {error, {unsupported_persister_log_format, Vsn}}; +check_version(_Other) -> + {error, unrecognised_persister_log_format}. + +requeue_messages(Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + Work = ets:foldl(fun accumulate_requeues/2, dict:new(), Queues), + %% unstable parallel map, because order doesn't matter + L = lists:append( + rabbit_misc:upmap( + %% we do as much work as possible in spawned worker + %% processes, but we need to make sure the ets:inserts are + %% performed in self() + fun ({QName, Requeues}) -> + requeue(QName, Requeues, Messages) + end, dict:to_list(Work))), + NewMessages = [{K, M} || {{_Q, K}, M, _D} <- L], + NewQueues = [{QK, D} || {QK, _M, D} <- L], + ets:delete_all_objects(Messages), + ets:delete_all_objects(Queues), + true = ets:insert(Messages, NewMessages), + true = ets:insert(Queues, NewQueues), + %% contains the mutated messages and queues tables + Snapshot. + +accumulate_requeues({{QName, PKey}, Delivered}, Acc) -> + Requeue = {PKey, Delivered}, + dict:update(QName, + fun (Requeues) -> [Requeue | Requeues] end, + [Requeue], + Acc). + +requeue(QName, Requeues, Messages) -> + case rabbit_amqqueue:lookup(QName) of + {ok, #amqqueue{pid = QPid}} -> + RequeueMessages = + [{{QName, PKey}, Message, Delivered} || + {PKey, Delivered} <- Requeues, + {_, Message} <- ets:lookup(Messages, PKey)], + rabbit_amqqueue:redeliver( + QPid, + %% Messages published by the same process receive + %% persistence keys that are monotonically + %% increasing. Since message ordering is defined on a + %% per-channel basis, and channels are bound to specific + %% processes, sorting the list does provide the correct + %% ordering properties. + [{Message, Delivered} || {_, Message, Delivered} <- + lists:sort(RequeueMessages)]), + RequeueMessages; + {error, not_found} -> + [] + end. + +replay([], LogHandle, K, Snapshot) -> + case disk_log:chunk(LogHandle, K) of + {K1, Items} -> + replay(Items, LogHandle, K1, Snapshot); + {K1, Items, Badbytes} -> + rabbit_log:warning("~p bad bytes recovering persister log~n", + [Badbytes]), + replay(Items, LogHandle, K1, Snapshot); + eof -> Snapshot + end; +replay([Item | Items], LogHandle, K, Snapshot) -> + NewSnapshot = internal_integrate_messages(Item, Snapshot), + replay(Items, LogHandle, K, NewSnapshot). + +internal_integrate_messages(Items, Snapshot) -> + lists:foldl(fun (Item, Snap) -> internal_integrate1(Item, Snap) end, + Snapshot, Items). + +internal_integrate1({extend_transaction, Key, MessageList}, + Snapshot = #psnapshot {transactions = Transactions}) -> + NewTransactions = + dict:update(Key, + fun (MessageLists) -> [MessageList | MessageLists] end, + [MessageList], + Transactions), + Snapshot#psnapshot{transactions = NewTransactions}; +internal_integrate1({rollback_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions}) -> + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; +internal_integrate1({commit_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions, + messages = Messages, + queues = Queues}) -> + case dict:find(Key, Transactions) of + {ok, MessageLists} -> + ?LOGDEBUG("persist committing txn ~p~n", [Key]), + lists:foreach(fun (ML) -> perform_work(ML, Messages, Queues) end, + lists:reverse(MessageLists)), + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; + error -> + Snapshot + end; +internal_integrate1({dirty_work, MessageList}, + Snapshot = #psnapshot {messages = Messages, + queues = Queues}) -> + perform_work(MessageList, Messages, Queues), + Snapshot. + +perform_work(MessageList, Messages, Queues) -> + lists:foreach( + fun (Item) -> perform_work_item(Item, Messages, Queues) end, + MessageList). + +perform_work_item({publish, Message, QK = {_QName, PKey}}, Messages, Queues) -> + ets:insert(Messages, {PKey, Message}), + ets:insert(Queues, {QK, false}); + +perform_work_item({tied, QK}, _Messages, Queues) -> + ets:insert(Queues, {QK, false}); + +perform_work_item({deliver, QK}, _Messages, Queues) -> + %% from R12B-2 onward we could use ets:update_element/3 here + ets:delete(Queues, QK), + ets:insert(Queues, {QK, true}); + +perform_work_item({ack, QK}, _Messages, Queues) -> + ets:delete(Queues, QK). diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl deleted file mode 100644 index 5a6c8b39..00000000 --- a/src/rabbit_queue_mode_manager.erl +++ /dev/null @@ -1,496 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_mode_manager). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([register/5, report_memory/3, report_memory/5, info/0, - pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). - --define(TOTAL_TOKENS, 10000000). --define(ACTIVITY_THRESHOLD, 25). - --define(SERVER, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(register/5 :: (pid(), boolean(), atom(), atom(), list()) -> 'ok'). --spec(report_memory/3 :: (pid(), non_neg_integer(), bool()) -> 'ok'). --spec(report_memory/5 :: (pid(), non_neg_integer(), - (non_neg_integer() | 'undefined'), - (non_neg_integer() | 'undefined'), bool()) -> - 'ok'). --spec(pin_to_disk/1 :: (pid()) -> 'ok'). --spec(unpin_from_disk/1 :: (pid()) -> 'ok'). --spec(info/0 :: () -> [{atom(), any()}]). --spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). - --endif. - --record(state, { available_tokens, - mixed_queues, - callbacks, - tokens_per_byte, - lowrate, - hibernate, - disk_mode_pins, - unevictable, - alarmed - }). - -%% Token-credit based memory management - -%% Start off by working out the amount of memory available in the -%% system (RAM). Then, work out how many tokens each byte corresponds -%% to. This is the tokens_per_byte field. When a process registers, it -%% must provide an M-F-A triple to a function that needs one further -%% argument, which is the new mode. This will either be 'mixed' or -%% 'disk'. -%% -%% Processes then report their own memory usage, in bytes, and the -%% manager takes care of the rest. -%% -%% There are a finite number of tokens in the system. These are -%% allocated to processes as they are requested. We keep track of -%% processes which have hibernated, and processes that are doing only -%% a low rate of work. When a request for memory can't be satisfied, -%% we try and evict processes first from the hibernated group, and -%% then from the lowrate group. The hibernated group is a simple -%% queue, and so is implicitly sorted by the order in which processes -%% were added to the queue. This means that when removing from the -%% queue, we hibernate the sleepiest pid first. The lowrate group is a -%% priority queue, where the priority is the truncated log (base e) of -%% the amount of memory allocated. Thus when we remove from the queue, -%% we first remove the queue from the highest bucket. -%% -%% If the request still can't be satisfied after evicting to disk -%% everyone from those two groups (and note that we check first -%% whether or not freeing them would make available enough tokens to -%% satisfy the request rather than just sending all those queues to -%% disk and then going "whoops, didn't help after all"), then we send -%% the requesting process to disk. When a queue registers, it can -%% declare itself "unevictable". If a queue is unevictable then it -%% will not be sent to disk as a result of other processes requesting -%% more memory. However, if it itself is requesting more memory and -%% that request can't be satisfied then it is still sent to disk as -%% before. This feature is only used by the disk_queue, because if the -%% disk queue is not being used, and hibernates, and then memory -%% pressure gets tight, the disk_queue would typically be one of the -%% first processes to get sent to disk, which cripples -%% performance. Thus by setting it unevictable, it is only possible -%% for the disk_queue to be sent to disk when it is active and -%% attempting to increase its memory allocation. -%% -%% If a process has been sent to disk, it continues making -%% requests. As soon as a request can be satisfied (and this can -%% include sending other processes to disk in the way described -%% above), it will be told to come back into mixed mode. We do not -%% keep any information about queues in disk mode. -%% -%% Note that the lowrate and hibernate groups can get very out of -%% date. This is fine, and somewhat unavoidable given the absence of -%% useful APIs for queues. Thus we allow them to get out of date -%% (processes will be left in there when they change groups, -%% duplicates can appear, dead processes are not pruned etc etc etc), -%% and when we go through the groups, summing up their amount of -%% memory, we tidy up at that point. -%% -%% A process which is not evicted to disk, and is requesting a smaller -%% amount of RAM than its last request will always be satisfied. A -%% mixed-mode process that is busy but consuming an unchanging amount -%% of RAM will never be sent to disk. The disk_queue is also managed -%% in the same way. This means that a queue that has gone back to -%% being mixed after being in disk mode now has its messages counted -%% twice as they are counted both in the request made by the queue -%% (even though they may not yet be in RAM (though see the -%% prefetcher)) and also by the disk_queue. Thus the amount of -%% available RAM must be higher when going disk -> mixed than when -%% going mixed -> disk. This is fairly sensible as it reduces the risk -%% of any oscillations occurring. -%% -%% The queue process deliberately reports 4 times its estimated RAM -%% usage, and the disk_queue 2.5 times. In practise, this seems to -%% work well. Note that we are deliberately running out of tokes a -%% little early because of the fact that the mixed -> disk transition -%% can transiently eat a lot of memory and take some time (flushing a -%% few million messages to disk is never going to be instantaneous). - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -register(Pid, Unevictable, Module, Function, Args) -> - gen_server2:cast(?SERVER, {register, Pid, Unevictable, - Module, Function, Args}). - -pin_to_disk(Pid) -> - gen_server2:call(?SERVER, {pin_to_disk, Pid}). - -unpin_from_disk(Pid) -> - gen_server2:call(?SERVER, {unpin_from_disk, Pid}). - -report_memory(Pid, Memory, Hibernating) -> - report_memory(Pid, Memory, undefined, undefined, Hibernating). - -report_memory(Pid, Memory, Gain, Loss, Hibernating) -> - gen_server2:cast(?SERVER, - {report_memory, Pid, Memory, Gain, Loss, Hibernating}). - -info() -> - gen_server2:call(?SERVER, info). - -conserve_memory(_Pid, Conserve) -> - gen_server2:pcast(?SERVER, 9, {conserve_memory, Conserve}). - -init([]) -> - process_flag(trap_exit, true), - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - {MemTotal, MemUsed, _BigProc} = memsup:get_memory_data(), - MemAvail = MemTotal - MemUsed, - TPB = if MemAvail == 0 -> 0; - true -> ?TOTAL_TOKENS / MemAvail - end, - {ok, #state { available_tokens = ?TOTAL_TOKENS, - mixed_queues = dict:new(), - callbacks = dict:new(), - tokens_per_byte = TPB, - lowrate = priority_queue:new(), - hibernate = queue:new(), - disk_mode_pins = sets:new(), - unevictable = sets:new(), - alarmed = false - }}. - -handle_call({pin_to_disk, Pid}, _From, - State = #state { mixed_queues = Mixed, - callbacks = Callbacks, - available_tokens = Avail, - disk_mode_pins = Pins }) -> - {Res, State1} = - case sets:is_element(Pid, Pins) of - true -> {ok, State}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - ok = set_queue_mode(Callbacks, Pid, disk), - {ok, State #state { mixed_queues = - dict:erase(Pid, Mixed), - available_tokens = Avail + OAlloc, - disk_mode_pins = - sets:add_element(Pid, Pins) - }}; - disk -> - {ok, State #state { disk_mode_pins = - sets:add_element(Pid, Pins) }} - end - end, - {reply, Res, State1}; - -handle_call({unpin_from_disk, Pid}, _From, - State = #state { disk_mode_pins = Pins }) -> - {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; - -handle_call(info, _From, State) -> - State1 = #state { available_tokens = Avail, - mixed_queues = Mixed, - lowrate = Lazy, - hibernate = Sleepy, - disk_mode_pins = Pins, - unevictable = Unevictable } = - free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying - {reply, [{ available_tokens, Avail }, - { mixed_queues, dict:to_list(Mixed) }, - { lowrate_queues, priority_queue:to_list(Lazy) }, - { hibernated_queues, queue:to_list(Sleepy) }, - { queues_pinned_to_disk, sets:to_list(Pins) }, - { unevictable_queues, sets:to_list(Unevictable) }], State1}. - - -handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, - State = #state { mixed_queues = Mixed, - available_tokens = Avail, - callbacks = Callbacks, - disk_mode_pins = Pins, - tokens_per_byte = TPB, - alarmed = Alarmed }) -> - Req = rabbit_misc:ceil(TPB * Memory), - LowRate = case {BytesGained, BytesLost} of - {undefined, _} -> false; - {_, undefined} -> false; - {G, L} -> G < ?ACTIVITY_THRESHOLD andalso - L < ?ACTIVITY_THRESHOLD - end, - MixedActivity = if Hibernating -> hibernate; - LowRate -> lowrate; - true -> active - end, - {StateN = #state { lowrate = Lazy, hibernate = Sleepy }, ActivityNew} = - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - Avail1 = Avail + OAlloc, - State1 = - #state { available_tokens = Avail2, mixed_queues = Mixed1 } - = free_upto(Pid, Req, - State #state { available_tokens = Avail1 }), - case Req > Avail2 of - true -> %% nowt we can do, send to disk - ok = set_queue_mode(Callbacks, Pid, disk), - {State1 #state { mixed_queues = - dict:erase(Pid, Mixed1) }, disk}; - false -> %% keep mixed - {State1 #state - { mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail2 - Req }, - MixedActivity} - end; - disk -> - case sets:is_element(Pid, Pins) orelse Alarmed of - true -> - {State, disk}; - false -> - State1 = #state { available_tokens = Avail1, - mixed_queues = Mixed1 } = - free_upto(Pid, Req, State), - case Req > Avail1 orelse Hibernating orelse LowRate of - true -> - %% not enough space, or no compelling - %% reason, so stay as disk - {State1, disk}; - false -> %% can go to mixed mode - set_queue_mode(Callbacks, Pid, mixed), - {State1 #state { - mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail1 - Req }, - MixedActivity} - end - end - end, - StateN1 = - case ActivityNew of - active -> StateN; - disk -> StateN; - lowrate -> - StateN #state { lowrate = add_to_lowrate(Pid, Req, Lazy) }; - hibernate -> - StateN #state { hibernate = queue:in(Pid, Sleepy) } - end, - {noreply, StateN1}; - -handle_cast({register, Pid, IsUnevictable, Module, Function, Args}, - State = #state { callbacks = Callbacks, - unevictable = Unevictable }) -> - _MRef = erlang:monitor(process, Pid), - Unevictable1 = case IsUnevictable of - true -> sets:add_element(Pid, Unevictable); - false -> Unevictable - end, - {noreply, State #state { callbacks = dict:store - (Pid, {Module, Function, Args}, Callbacks), - unevictable = Unevictable1 - }}; - -handle_cast({conserve_memory, Conserve}, State) -> - {noreply, State #state { alarmed = Conserve }}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #state { available_tokens = Avail, - mixed_queues = Mixed }) -> - State1 = case find_queue(Pid, Mixed) of - disk -> - State; - {mixed, {Alloc, _Activity}} -> - State #state { available_tokens = Avail + Alloc, - mixed_queues = dict:erase(Pid, Mixed) } - end, - {noreply, State1}; -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -add_to_lowrate(Pid, Alloc, Lazy) -> - Bucket = if Alloc == 0 -> 0; %% can't take log(0) - true -> trunc(math:log(Alloc)) %% log base e - end, - priority_queue:in({Pid, Bucket, Alloc}, Bucket, Lazy). - -find_queue(Pid, Mixed) -> - case dict:find(Pid, Mixed) of - {ok, Value} -> {mixed, Value}; - error -> disk - end. - -set_queue_mode(Callbacks, Pid, Mode) -> - {Module, Function, Args} = dict:fetch(Pid, Callbacks), - erlang:apply(Module, Function, Args ++ [Mode]). - -tidy_and_sum_lazy(IgnorePids, Lazy, Mixed) -> - tidy_and_sum(lowrate, Mixed, - fun (Lazy1) -> - case priority_queue:out(Lazy1) of - {empty, Lazy2} -> - {empty, Lazy2}; - {{value, {Pid, _Bucket, _Alloc}}, Lazy2} -> - {{value, Pid}, Lazy2} - end - end, fun add_to_lowrate/3, IgnorePids, Lazy, - priority_queue:new(), 0). - -tidy_and_sum_sleepy(IgnorePids, Sleepy, Mixed) -> - tidy_and_sum(hibernate, Mixed, fun queue:out/1, - fun (Pid, _Alloc, Queue) -> queue:in(Pid, Queue) end, - IgnorePids, Sleepy, queue:new(), 0). - -tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, DupCheckSet, - CataInit, AnaInit, AllocAcc) -> - case Catamorphism(CataInit) of - {empty, _CataInit} -> {AnaInit, AllocAcc}; - {{value, Pid}, CataInit1} -> - {DupCheckSet1, AnaInit1, AllocAcc1} = - case sets:is_element(Pid, DupCheckSet) of - true -> - {DupCheckSet, AnaInit, AllocAcc}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {Alloc, AtomExpected}} -> - {sets:add_element(Pid, DupCheckSet), - Anamorphism(Pid, Alloc, AnaInit), - Alloc + AllocAcc}; - _ -> - {DupCheckSet, AnaInit, AllocAcc} - end - end, - tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, - DupCheckSet1, CataInit1, AnaInit1, AllocAcc1) - end. - -free_upto_lazy(IgnorePids, Callbacks, Lazy, Mixed, Req) -> - free_from( - Callbacks, - fun(_Mixed, Lazy1, LazyAcc) -> - case priority_queue:out(Lazy1) of - {empty, _Lazy2} -> - empty; - {{value, V = {Pid, Bucket, Alloc}}, Lazy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Lazy2, - priority_queue:in(V, Bucket, LazyAcc)}; - false -> {value, Lazy2, Pid, Alloc} - end - end - end, fun priority_queue:join/2, Mixed, Lazy, priority_queue:new(), Req). - -free_upto_sleepy(IgnorePids, Callbacks, Sleepy, Mixed, Req) -> - free_from(Callbacks, - fun(Mixed1, Sleepy1, SleepyAcc) -> - case queue:out(Sleepy1) of - {empty, _Sleepy2} -> - empty; - {{value, Pid}, Sleepy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Sleepy2, - queue:in(Pid, SleepyAcc)}; - false -> {Alloc, hibernate} = - dict:fetch(Pid, Mixed1), - {value, Sleepy2, Pid, Alloc} - end - end - end, fun queue:join/2, Mixed, Sleepy, queue:new(), Req). - -free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit, AnaInit, Req) -> - case Hylomorphism(Mixed, CataInit, AnaInit) of - empty -> - {AnaInit, Mixed, Req}; - {skip, CataInit1, AnaInit1} -> - free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit1, - AnaInit1, Req); - {value, CataInit1, Pid, Alloc} -> - Mixed1 = dict:erase(Pid, Mixed), - ok = set_queue_mode(Callbacks, Pid, disk), - case Req > Alloc of - true -> free_from(Callbacks, Hylomorphism, BaseCase, Mixed1, - CataInit1, AnaInit, Req - Alloc); - false -> {BaseCase(CataInit1, AnaInit), Mixed1, Req - Alloc} - end - end. - -free_upto(Pid, Req, State = #state { available_tokens = Avail, - mixed_queues = Mixed, - callbacks = Callbacks, - lowrate = Lazy, - hibernate = Sleepy, - unevictable = Unevictable }) - when Req > Avail -> - Unevictable1 = sets:add_element(Pid, Unevictable), - {Sleepy1, SleepySum} = tidy_and_sum_sleepy(Unevictable1, Sleepy, Mixed), - case Req > Avail + SleepySum of - true -> %% not enough in sleepy, have a look in lazy too - {Lazy1, LazySum} = tidy_and_sum_lazy(Unevictable1, Lazy, Mixed), - case Req > Avail + SleepySum + LazySum of - true -> %% can't free enough, just return tidied state - State #state { lowrate = Lazy1, hibernate = Sleepy1 }; - false -> %% need to free all of sleepy, and some of lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, - Sleepy1, Mixed, Req), - {Lazy2, Mixed2, ReqRem1} = - free_upto_lazy(Unevictable1, Callbacks, - Lazy1, Mixed1, ReqRem), - %% ReqRem1 will be <= 0 because it's - %% likely we'll have freed more than we - %% need, thus Req - ReqRem1 is total freed - State #state { available_tokens = Avail + (Req - ReqRem1), - mixed_queues = Mixed2, lowrate = Lazy2, - hibernate = Sleepy2 } - end; - false -> %% enough available in sleepy, don't touch lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, Sleepy1, Mixed, Req), - State #state { available_tokens = Avail + (Req - ReqRem), - mixed_queues = Mixed1, hibernate = Sleepy2 } - end; -free_upto(_Pid, _Req, State) -> - State. diff --git a/src/rabbit_queue_prefetcher.erl b/src/rabbit_queue_prefetcher.erl deleted file mode 100644 index c847848d..00000000 --- a/src/rabbit_queue_prefetcher.erl +++ /dev/null @@ -1,258 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_prefetcher). - --behaviour(gen_server2). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([publish/2, drain/1, drain_and_stop/1]). - --include("rabbit.hrl"). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(pstate, - { msg_buf, - buf_length, - target_count, - fetched_count, - queue, - queue_mref - }). - -%% The design of the prefetcher is based on the following: -%% -%% a) It must issue low-priority (-ve) requests to the disk queue for -%% the next message. -%% b) If the prefetcher is empty and the amqqueue_process -%% (mixed_queue) asks it for a message, it must exit immediately, -%% telling the mixed_queue that it is empty so that the mixed_queue -%% can then take the more efficient path and communicate with the -%% disk_queue directly -%% c) No message can accidentally be delivered twice, or lost -%% d) The prefetcher must only cause load when the disk_queue is -%% otherwise idle, and must not worsen performance in a loaded -%% situation. -%% -%% As such, it's a little tricky. It must never issue a call to the -%% disk_queue - if it did, then that could potentially block, thus -%% causing pain to the mixed_queue that needs fast answers as to -%% whether the prefetcher has prefetched content or not. It behaves as -%% follows: -%% -%% 1) disk_queue:prefetch(Q) -%% This is a low priority cast -%% -%% 2) The disk_queue may pick up the cast, at which point it'll read -%% the next message and invoke prefetcher:publish(Msg) - normal -%% priority cast. Note that in the mean time, the mixed_queue could -%% have come along, found the prefetcher empty, asked it to -%% exit. This means the effective "reply" from the disk_queue will -%% go no where. As a result, the disk_queue must perform no -%% modification to the status of the message *or the queue* - do -%% not mark the message delivered, and do not advance the queue. If -%% it did advance the queue and the msg was then lost, then the -%% queue would have lost a msg that the mixed_queue would not pick -%% up. -%% -%% 3) The prefetcher hopefully receives the call from -%% prefetcher:publish(Msg). It replies immediately, and then adds -%% to its internal queue. A cast is not sufficient here because the -%% mixed_queue could come along, drain the prefetcher, thus -%% catching the msg just sent by the disk_queue and then call -%% disk_queue:deliver(Q) which is normal priority call, which could -%% overtake a reply cast from the prefetcher to the disk queue, -%% which would result in the same message being delivered -%% twice. Thus when the disk_queue calls prefetcher:publish(Msg), -%% it is briefly blocked. However, a) the prefetcher replies -%% immediately, and b) the prefetcher should never have more than -%% one item in its mailbox anyway, so this should not cause a -%% problem to the disk_queue. -%% -%% 4) The disk_queue receives the reply, marks the msg at the head of -%% the queue Q as delivered, and advances the Q to the next msg. -%% -%% 5) If the prefetcher has not met its target then it goes back to -%% 1). Otherwise it just sits and waits for the mixed_queue to -%% drain it. -%% -%% Now at some point, the mixed_queue will come along and will call -%% prefetcher:drain() - normal priority call. The prefetcher then -%% replies with its internal queue and the length of that queue. If -%% the prefetch target was reached, the prefetcher stops normally at -%% this point. If it hasn't been reached, then the prefetcher -%% continues to hang around (it almost certainly has issued a -%% disk_queue:prefetch(Q) cast and is waiting for a reply from the -%% disk_queue). -%% -%% If the mixed_queue calls prefetcher:drain() and the prefetcher's -%% internal queue is empty then the prefetcher replies with 'empty', -%% and it exits. This informs the mixed_queue that it should from now -%% on talk directly with the disk_queue and not via the -%% prefetcher. This is more efficient and the mixed_queue will use -%% normal priority blocking calls to the disk_queue and thus get -%% better service that way. -%% -%% The prefetcher may at this point have issued a -%% disk_queue:prefetch(Q) cast which has not yet been picked up by the -%% disk_queue. This msg won't go away and the disk_queue will -%% eventually find it. However, when it does, it'll simply read the -%% next message from the queue (which could now be empty), possibly -%% populate the cache (no harm done) and try and call -%% prefetcher:publish(Msg) which will result in an error, which the -%% disk_queue catches, as the publish call is to a non-existant -%% process. However, the state of the queue and the state of the -%% message has not been altered so the mixed_queue will be able to -%% fetch this message as if it had never been prefetched. -%% -%% The only point at which the queue is advanced and the message -%% marked as delivered is when the prefetcher replies to the publish -%% call. At this point the message has been received by the prefetcher -%% and so we guarantee it will be passed to the mixed_queue when the -%% mixed_queue tries to drain the prefetcher. We must therefore ensure -%% that this msg can't also be delivered to the mixed_queue directly -%% by the disk_queue through the mixed_queue calling -%% disk_queue:deliver(Q) which is why the prefetcher:publish function -%% is a call and not a cast, thus blocking the disk_queue. -%% -%% Finally, the prefetcher is only created when the mixed_queue is -%% operating in mixed mode and it sees that the next N messages are -%% all on disk, and the queue process is about to hibernate. During -%% this phase, the mixed_queue can be asked to go back to disk_only -%% mode. When this happens, it calls prefetcher:drain_and_stop() which -%% behaves like two consecutive calls to drain() - i.e. replies with -%% all prefetched messages and causes the prefetcher to exit. -%% -%% Note there is a flaw here in that we end up marking messages which -%% have come through the prefetcher as delivered even if they don't -%% get delivered (e.g. prefetcher fetches them, then broker -%% dies). However, the alternative is that the mixed_queue must do a -%% call to the disk_queue when it effectively passes them out to the -%% rabbit_writer. This would hurt performance, and even at that stage, -%% we have no guarantee that the message will really go out of the -%% socket. What we do still have is that messages which have the -%% redelivered bit set false really are guaranteed to have not been -%% delivered already. In theory, it's possible that the disk_queue -%% calls prefetcher:publish, blocks waiting for the reply. The -%% prefetcher grabs the message, is drained, the message goes out of -%% the socket and is delivered. The broker then crashes before the -%% disk_queue processes the reply from the prefetcher, thus the fact -%% the message has been delivered is not recorded. However, this can -%% only affect a single message at a time. I.e. there is a tiny chance -%% that the first message delivered on queue recovery that has the -%% redelivery bit set false, has in fact been delivered before. - -start_link(Queue, Count) -> - gen_server2:start_link(?MODULE, [Queue, Count, self()], []). - -publish(Prefetcher, Obj = { #basic_message {}, _Size, _IsDelivered, - _AckTag, _Remaining }) -> - gen_server2:call(Prefetcher, {publish, Obj}, infinity); -publish(Prefetcher, empty) -> - gen_server2:call(Prefetcher, publish_empty, infinity). - -drain(Prefetcher) -> - gen_server2:call(Prefetcher, drain, infinity). - -drain_and_stop(Prefetcher) -> - gen_server2:call(Prefetcher, drain_and_stop, infinity). - -init([Q, Count, QPid]) -> - %% link isn't enough because the signal will not appear if the - %% queue exits normally. Thus have to use monitor. - MRef = erlang:monitor(process, QPid), - State = #pstate { msg_buf = queue:new(), - buf_length = 0, - target_count = Count, - fetched_count = 0, - queue = Q, - queue_mref = MRef - }, - ok = rabbit_disk_queue:prefetch(Q), - {ok, State, infinity, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({publish, { Msg = #basic_message {}, - _Size, IsDelivered, AckTag, _Remaining }}, - DiskQueue, State = - #pstate { fetched_count = Fetched, target_count = Target, - msg_buf = MsgBuf, buf_length = Length, queue = Q - }) -> - gen_server2:reply(DiskQueue, ok), - Timeout = if Fetched + 1 == Target -> hibernate; - true -> ok = rabbit_disk_queue:prefetch(Q), - infinity - end, - MsgBuf1 = queue:in({Msg, IsDelivered, AckTag}, MsgBuf), - {noreply, State #pstate { fetched_count = Fetched + 1, - buf_length = Length + 1, - msg_buf = MsgBuf1 }, Timeout}; -handle_call(publish_empty, _From, State) -> - %% Very odd. This could happen if the queue is deleted or purged - %% and the mixed queue fails to shut us down. - {reply, ok, State, hibernate}; -handle_call(drain, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain, _From, State = #pstate { fetched_count = Count, - target_count = Count, - msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length, finished}, State}; -handle_call(drain, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {reply, {MsgBuf, Length, continuing}, - State #pstate { msg_buf = queue:new(), buf_length = 0 }, infinity}; -handle_call(drain_and_stop, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain_and_stop, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length}, State}. - -handle_cast(Msg, State) -> - exit({unexpected_message_cast_to_prefetcher, Msg, State}). - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #pstate { queue_mref = MRef }) -> - %% this is the amqqueue_process going down, so we should go down - %% too - {stop, normal, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index f6d42e7c..e5100ccd 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -31,9 +31,7 @@ -module(rabbit_tests). --compile(export_all). - --export([all_tests/0, test_parsing/0, test_disk_queue/0]). +-export([all_tests/0, test_parsing/0]). %% Exported so the hook mechanism can call back -export([handle_hook/3, bad_handle_hook/3, extra_arg_hook/5]). @@ -50,7 +48,6 @@ test_content_prop_roundtrip(Datum, Binary) -> Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion all_tests() -> - passed = test_disk_queue(), passed = test_priority_queue(), passed = test_parsing(), passed = test_topic_matching(), @@ -78,8 +75,7 @@ test_priority_queue() -> %% 1-element priority Q Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), + {true, false, 1, [{1, foo}], [foo]} = test_priority_queue(Q1), %% 2-element same-priority Q Q2 = priority_queue:in(bar, 1, Q1), @@ -95,42 +91,6 @@ test_priority_queue() -> Q4 = priority_queue:in(foo, -1, priority_queue:new()), {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - passed. priority_queue_in_all(Q, L) -> @@ -141,6 +101,7 @@ priority_queue_out_all(Q) -> {empty, _} -> []; {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] end. + test_priority_queue(Q) -> {priority_queue:is_queue(Q), priority_queue:is_empty(Q), @@ -447,17 +408,19 @@ test_cluster_management() -> end, ClusteringSequence), - %% convert a disk node into a ram node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(start_app, []), ok = control_action(stop_app, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), - %% join a non-existing cluster as a ram node + %% attempt to join a non-existing cluster as a ram node ok = control_action(reset, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {unable_to_contact_cluster_nodes, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), SecondaryNode = rabbit_misc:localnode(hare), case net_adm:ping(SecondaryNode) of @@ -473,12 +436,11 @@ test_cluster_management2(SecondaryNode) -> NodeS = atom_to_list(node()), SecondaryNodeS = atom_to_list(SecondaryNode), - %% make a disk node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), + {error, {unable_to_join_cluster, _, _}} = + control_action(cluster, [SecondaryNodeS]), %% join cluster as a ram node ok = control_action(reset, []), @@ -491,21 +453,21 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% join non-existing cluster as a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to join non-existing cluster as a ram node + {error, _} = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), + %% turn ram node into disk node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS, NodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% convert a disk node into a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to convert a disk node into a ram node + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn a disk node into a ram node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), @@ -780,503 +742,3 @@ bad_handle_hook(_, _, _) -> bad:bad(). extra_arg_hook(Hookname, Handler, Args, Extra1, Extra2) -> handle_hook(Hookname, Handler, {Args, Extra1, Extra2}). - -test_disk_queue() -> - rdq_stop(), - rdq_virgin(), - passed = rdq_stress_gc(5000), - passed = rdq_test_startup_with_queue_gaps(), - passed = rdq_test_redeliver(), - passed = rdq_test_purge(), - passed = rdq_test_mixed_queue_modes(), - passed = rdq_test_mode_conversion_mid_txn(), - passed = rdq_test_disk_queue_modes(), - rdq_virgin(), - passed. - -benchmark_disk_queue() -> - rdq_stop(), - % unicode chars are supported properly from r13 onwards - io:format("Msg Count\t| Msg Size\t| Queue Count\t| Startup mu s\t| Publish mu s\t| Pub mu s/msg\t| Pub mu s/byte\t| Deliver mu s\t| Del mu s/msg\t| Del mu s/byte~n", []), - [begin rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSize), - timer:sleep(1000) end || % 1000 milliseconds - MsgSize <- [512, 8192, 32768, 131072], - Qs <- [[1], lists:seq(1,10)], %, lists:seq(1,100), lists:seq(1,1000)], - MsgCount <- [1024, 4096, 16384] - ], - rdq_virgin(), - ok = control_action(stop_app, []), - ok = control_action(start_app, []), - passed. - -rdq_message(MsgId, MsgBody, IsPersistent) -> - rabbit_basic:message(x, <<>>, [], MsgBody, MsgId, IsPersistent). - -rdq_match_message( - #basic_message { guid = MsgId, content = - #content { payload_fragments_rev = [MsgBody] }}, - MsgId, MsgBody, Size) when size(MsgBody) =:= Size -> - ok. - -rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSizeBytes) -> - Startup = rdq_virgin(), - rdq_start(), - QCount = length(Qs), - Msg = <<0:(8*MsgSizeBytes)>>, - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - {Publish, ok} = - timer:tc(?MODULE, rdq_time_commands, - [[fun() -> [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) - || N <- List, _ <- Qs] end, - fun() -> [ok = rabbit_disk_queue:tx_commit(Q, CommitList, []) - || Q <- Qs] end - ]]), - {Deliver, ok} = - timer:tc( - ?MODULE, rdq_time_commands, - [[fun() -> [begin SeqIds = - [begin - Remaining = MsgCount - N, - {Message, _TSize, false, SeqId, - Remaining} = rabbit_disk_queue:deliver(Q), - ok = rdq_match_message(Message, N, Msg, MsgSizeBytes), - SeqId - end || N <- List], - ok = rabbit_disk_queue:tx_commit(Q, [], SeqIds) - end || Q <- Qs] - end]]), - io:format(" ~15.10B| ~14.10B| ~14.10B| ~14.1f| ~14.1f| ~14.6f| ~14.10f| ~14.1f| ~14.6f| ~14.10f~n", - [MsgCount, MsgSizeBytes, QCount, float(Startup), - float(Publish), (Publish / (MsgCount * QCount)), - (Publish / (MsgCount * QCount * MsgSizeBytes)), - float(Deliver), (Deliver / (MsgCount * QCount)), - (Deliver / (MsgCount * QCount * MsgSizeBytes))]), - rdq_stop(). - -% we know each file is going to be 1024*1024*10 bytes in size (10MB), -% so make sure we have several files, and then keep punching holes in -% a reasonably sensible way. -rdq_stress_gc(MsgCount) -> - rdq_virgin(), - rdq_start(), - MsgSizeBytes = 256*1024, - Msg = <<0:(8*MsgSizeBytes)>>, % 256KB - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- List], - rabbit_disk_queue:tx_commit(q, CommitList, []), - StartChunk = round(MsgCount / 20), % 5% - AckList = - lists:foldl( - fun (E, Acc) -> - case lists:member(E, Acc) of - true -> Acc; - false -> [E|Acc] - end - end, [], lists:flatten( - lists:reverse( - [ lists:seq(N, MsgCount, N) - || N <- lists:seq(1, round(MsgCount / 2), 1) - ]))), - {Start, End} = lists:split(StartChunk, AckList), - AckList2 = End ++ Start, - MsgIdToSeqDict = - lists:foldl( - fun (MsgId, Acc) -> - Remaining = MsgCount - MsgId, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, MsgId, Msg, MsgSizeBytes), - dict:store(MsgId, SeqId, Acc) - end, dict:new(), List), - %% we really do want to ack each of this individually - [begin {ok, SeqId} = dict:find(MsgId, MsgIdToSeqDict), - rabbit_disk_queue:ack(q, [SeqId]) - end || MsgId <- AckList2], - rabbit_disk_queue:tx_commit(q, [], []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_startup_with_queue_gaps() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, true)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% ack every other message we have delivered (starting at the _first_) - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:ack(q, [SeqId2]), - false; - (_SeqId2, false) -> - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Acked every other message delivered done~n", []), - rdq_stop(), - rdq_start(), - io:format("Startup (with shuffle) done~n", []), - %% should have shuffled up. So we should now get - %% lists:seq(2,500,2) already delivered - Seqs2 = [begin - Remaining = round(Total - ((Half + N)/2)), - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(2,Half,2)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - io:format("Reread non-acked messages done~n", []), - %% and now fetch the rest - Seqs3 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1 + Half,Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - io:format("Read second half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_redeliver() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% now requeue every other message (starting at the _first_) - %% and ack the other ones - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:requeue(q, [{SeqId2, true}]), - false; - (SeqId2, false) -> - rabbit_disk_queue:ack(q, [SeqId2]), - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Redeliver and acking done~n", []), - %% we should now get the 2nd half in order, followed by - %% every-other-from-the-first-half - Seqs2 = [begin - Remaining = round(Total - N + (Half/2)), - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1+Half, Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - Seqs3 = [begin - Remaining = round((Half - N) / 2) - 1, - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1, Half, 2)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_purge() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - rabbit_disk_queue:purge(q), - io:format("Purge done~n", []), - rabbit_disk_queue:tx_commit(q, [], Seqs), - io:format("Ack first half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_new_mixed_queue(Q, Durable, Disk) -> - {ok, MS} = rabbit_mixed_queue:init(Q, Durable), - {MS1, _, _, _} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - case Disk of - true -> {ok, MS2} = rabbit_mixed_queue:to_disk_only_mode([], MS1), - MS2; - false -> MS1 - end. - -rdq_test_mixed_queue_modes() -> - rdq_virgin(), - rdq_start(), - Payload = <<0:(8*256)>>, - MS = rdq_new_mixed_queue(q, true, false), - MS2 = lists:foldl( - fun (_N, MS1) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS, lists:seq(1,10)), - MS4 = lists:foldl( - fun (_N, MS3) -> - Msg = (rabbit_basic:message(x, <<>>, [], Payload)) - #basic_message { is_persistent = true }, - {ok, MS3a} = rabbit_mixed_queue:publish(Msg, MS3), - MS3a - end, MS2, lists:seq(1,10)), - MS6 = lists:foldl( - fun (_N, MS5) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS5a} = rabbit_mixed_queue:publish(Msg, MS5), - MS5a - end, MS4, lists:seq(1,10)), - 30 = rabbit_mixed_queue:length(MS6), - io:format("Published a mixture of messages; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS6)]), - {ok, MS7} = rabbit_mixed_queue:to_disk_only_mode([], MS6), - 30 = rabbit_mixed_queue:length(MS7), - io:format("Converted to disk only mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS7)]), - {ok, MS8} = rabbit_mixed_queue:to_mixed_mode([], MS7), - 30 = rabbit_mixed_queue:length(MS8), - io:format("Converted to mixed mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS8)]), - MS10 = - lists:foldl( - fun (N, MS9) -> - Rem = 30 - N, - {{#basic_message { is_persistent = false }, - false, _AckTag, Rem}, - MS9a} = rabbit_mixed_queue:deliver(MS9), - MS9a - end, MS8, lists:seq(1,10)), - 20 = rabbit_mixed_queue:length(MS10), - io:format("Delivered initial non persistent messages~n"), - {ok, MS11} = rabbit_mixed_queue:to_disk_only_mode([], MS10), - 20 = rabbit_mixed_queue:length(MS11), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS12 = rdq_new_mixed_queue(q, true, false), - 10 = rabbit_mixed_queue:length(MS12), - io:format("Recovered queue~n"), - {MS14, AckTags} = - lists:foldl( - fun (N, {MS13, AcksAcc}) -> - Rem = 10 - N, - {{Msg = #basic_message { is_persistent = true }, - false, AckTag, Rem}, - MS13a} = rabbit_mixed_queue:deliver(MS13), - {MS13a, [{Msg, AckTag} | AcksAcc]} - end, {MS12, []}, lists:seq(1,10)), - 0 = rabbit_mixed_queue:length(MS14), - {ok, MS15} = rabbit_mixed_queue:ack(AckTags, MS14), - io:format("Delivered and acked all messages~n"), - {ok, MS16} = rabbit_mixed_queue:to_disk_only_mode([], MS15), - 0 = rabbit_mixed_queue:length(MS16), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS17 = rdq_new_mixed_queue(q, true, false), - 0 = rabbit_mixed_queue:length(MS17), - {MS17,0,0,0} = rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS17), - io:format("Recovered queue~n"), - rdq_stop(), - passed. - -rdq_test_mode_conversion_mid_txn() -> - Payload = <<0:(8*256)>>, - MsgIdsA = lists:seq(0,9), - MsgsA = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsA ], - MsgIdsB = lists:seq(10,20), - MsgsB = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsB ], - - rdq_virgin(), - rdq_start(), - MS0 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS0, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, commit), - - rdq_stop_virgin_start(), - MS1 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS1, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, cancel), - - - rdq_stop_virgin_start(), - MS2 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS2, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, commit), - - rdq_stop_virgin_start(), - MS3 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS3, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, cancel), - - rdq_stop(), - passed. - -rdq_tx_publish_mixed_alter_commit_get(MS0, MsgsA, MsgsB, ChangeFun, CommitOrCancel) -> - 0 = rabbit_mixed_queue:length(MS0), - MS2 = lists:foldl( - fun (Msg, MS1) -> - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS0, MsgsA), - Len0 = length(MsgsA), - Len0 = rabbit_mixed_queue:length(MS2), - MS4 = lists:foldl( - fun (Msg, MS3) -> - {ok, MS3a} = rabbit_mixed_queue:tx_publish(Msg, MS3), - MS3a - end, MS2, MsgsB), - Len0 = rabbit_mixed_queue:length(MS4), - {ok, MS5} = ChangeFun(MsgsB, MS4), - Len0 = rabbit_mixed_queue:length(MS5), - {ok, MS9} = - case CommitOrCancel of - commit -> - {ok, MS6} = rabbit_mixed_queue:tx_commit(MsgsB, [], MS5), - Len1 = Len0 + length(MsgsB), - Len1 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len1 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA ++ MsgsB), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8); - cancel -> - {ok, MS6} = rabbit_mixed_queue:tx_cancel(MsgsB, MS5), - Len0 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len0 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8) - end, - 0 = rabbit_mixed_queue:length(MS9), - Msg = rdq_message(0, <<0:256>>, false), - {ok, AckTag, MS10} = rabbit_mixed_queue:publish_delivered(Msg, MS9), - {ok,MS11} = rabbit_mixed_queue:ack([{Msg, AckTag}], MS10), - 0 = rabbit_mixed_queue:length(MS11), - passed. - -rdq_test_disk_queue_modes() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half1 = lists:seq(1,round(Total/2)), - Half2 = lists:seq(1 + round(Total/2), Total), - CommitHalf1 = lists:zip(Half1, lists:duplicate(round(Total/2), false)), - CommitHalf2 = lists:zip(Half2, lists:duplicate - (Total - round(Total/2), false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half1], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf1, []), - io:format("Publish done~n", []), - ok = rabbit_disk_queue:to_disk_only_mode(), - io:format("To Disk Only done~n", []), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half2], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf2, []), - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half1], - io:format("Deliver first half done~n", []), - ok = rabbit_disk_queue:to_ram_disk_mode(), - io:format("To RAM Disk done~n", []), - Seqs2 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half2], - io:format("Deliver second half done~n", []), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs), - ok = rabbit_disk_queue:to_disk_only_mode(), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs2), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_time_commands(Funcs) -> - lists:foreach(fun (F) -> F() end, Funcs). - -rdq_virgin() -> - {Micros, {ok, _}} = - timer:tc(rabbit_disk_queue, start_link, []), - ok = rabbit_disk_queue:stop_and_obliterate(), - timer:sleep(1000), - Micros. - -rdq_start() -> - {ok, _} = rabbit_disk_queue:start_link(), - ok = rabbit_disk_queue:to_ram_disk_mode(), - ok. - -rdq_stop() -> - rabbit_disk_queue:stop(), - timer:sleep(1000). - -rdq_stop_virgin_start() -> - rdq_stop(), - rdq_virgin(), - rdq_start(). -- cgit v1.2.1 From 76ffdce28a553a508927405cb85ab0fa5b532325 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 17 Aug 2009 17:55:43 +0100 Subject: reversed everything but the changes to mnesia to support local_content tables properly. To QA this, find the diff between this and the default rev a53ac6a45325 --- Makefile | 7 +- include/rabbit.hrl | 8 +- scripts/rabbitmq-server | 3 +- scripts/rabbitmq-server.bat | 3 +- scripts/rabbitmq-service.bat | 3 +- src/priority_queue.erl | 42 +- src/rabbit.erl | 16 +- src/rabbit_alarm.erl | 52 +- src/rabbit_amqqueue.erl | 88 +- src/rabbit_amqqueue_process.erl | 568 +++++------ src/rabbit_basic.erl | 17 +- src/rabbit_channel.erl | 7 +- src/rabbit_control.erl | 22 +- src/rabbit_disk_queue.erl | 1973 ------------------------------------- src/rabbit_guid.erl | 22 +- src/rabbit_memsup.erl | 126 --- src/rabbit_memsup_darwin.erl | 102 -- src/rabbit_memsup_linux.erl | 99 +- src/rabbit_misc.erl | 40 +- src/rabbit_mixed_queue.erl | 596 ----------- src/rabbit_mnesia.erl | 9 +- src/rabbit_persister.erl | 523 ++++++++++ src/rabbit_queue_mode_manager.erl | 496 ---------- src/rabbit_queue_prefetcher.erl | 258 ----- src/rabbit_tests.erl | 582 +---------- 25 files changed, 966 insertions(+), 4696 deletions(-) delete mode 100644 src/rabbit_disk_queue.erl delete mode 100644 src/rabbit_memsup.erl delete mode 100644 src/rabbit_memsup_darwin.erl delete mode 100644 src/rabbit_mixed_queue.erl create mode 100644 src/rabbit_persister.erl delete mode 100644 src/rabbit_queue_mode_manager.erl delete mode 100644 src/rabbit_queue_prefetcher.erl diff --git a/Makefile b/Makefile index 05464ca1..c3b0c598 100644 --- a/Makefile +++ b/Makefile @@ -20,10 +20,10 @@ PYTHON=python ifndef USE_SPECS # our type specs rely on features / bug fixes in dialyzer that are -# only available in R13B upwards (R13B is eshell 5.7.1) +# only available in R12B-3 upwards # # NB: the test assumes that version number will only contain single digits -USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.0" ]; then echo "true"; else echo "false"; fi) +USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.6.2" ]; then echo "true"; else echo "false"; fi) endif #other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests @@ -101,8 +101,7 @@ run-tests: all start-background-node: $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server ; sleep 1 + ./scripts/rabbitmq-server -detached; sleep 1 start-rabbit-on-node: all echo "rabbit:start()." | $(ERL_CALL) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 0ba31cb5..784c21b3 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -62,10 +62,7 @@ -record(listener, {node, protocol, host, port}). --record(basic_message, {exchange_name, routing_key, content, - guid, is_persistent}). - --record(dq_msg_loc, {queue_and_seq_id, is_delivered, msg_id}). +-record(basic_message, {exchange_name, routing_key, content, persistent_key}). -record(delivery, {mandatory, immediate, txn, sender, message}). @@ -137,8 +134,7 @@ #basic_message{exchange_name :: exchange_name(), routing_key :: routing_key(), content :: content(), - guid :: guid(), - is_persistent :: bool()}). + persistent_key :: maybe(pkey())}). -type(message() :: basic_message()). -type(delivery() :: #delivery{mandatory :: bool(), diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index f802ec4c..547220b4 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -105,9 +105,8 @@ exec erl \ -os_mon start_memsup false \ -os_mon start_os_sup false \ -os_mon memsup_system_only true \ - -os_mon system_memory_high_watermark 0.8 \ + -os_mon system_memory_high_watermark 0.95 \ -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - -mnesia dump_log_write_threshold 10000 \ ${RABBITMQ_CLUSTER_CONFIG_OPTION} \ ${RABBITMQ_SERVER_START_ARGS} \ "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 3b6e4938..b4868841 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -134,9 +134,8 @@ if exist "%RABBITMQ_EBIN_ROOT%\rabbit.boot" ( -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat index 82aa4d5c..29be1742 100755 --- a/scripts/rabbitmq-service.bat +++ b/scripts/rabbitmq-service.bat @@ -175,9 +175,8 @@ set ERLANG_SERVICE_ARGUMENTS= ^ -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 0c777471..732757c4 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -55,8 +55,7 @@ -module(priority_queue). --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). +-export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, out/1]). %%---------------------------------------------------------------------------- @@ -73,8 +72,7 @@ -spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). -spec(in/2 :: (any(), pqueue()) -> pqueue()). -spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {(empty | {value, any()}), pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). +-spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). -endif. @@ -149,42 +147,6 @@ out({pqueue, [{P, Q} | Queues]}) -> end, {R, NewQ}. -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - r2f([]) -> {queue, [], []}; r2f([_] = R) -> {queue, [], R}; r2f([X,Y]) -> {queue, [X], [Y]}; diff --git a/src/rabbit.erl b/src/rabbit.erl index 88c60eb9..b0d62b5a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -139,8 +139,6 @@ start(normal, []) -> {ok, MemoryAlarms} = application:get_env(memory_alarms), ok = rabbit_alarm:start(MemoryAlarms), - - ok = start_child(rabbit_queue_mode_manager), ok = rabbit_binary_generator: check_empty_content_body_frame_size(), @@ -148,19 +146,15 @@ start(normal, []) -> ok = start_child(rabbit_router), ok = start_child(rabbit_node_monitor) end}, - {"disk queue", - fun () -> - ok = start_child(rabbit_disk_queue) - end}, {"recovery", fun () -> ok = maybe_insert_default_data(), ok = rabbit_exchange:recover(), - {ok, DurableQueues} = rabbit_amqqueue:recover(), - DurableQueueNames = - sets:from_list([ Q #amqqueue.name || Q <- DurableQueues ]), - ok = rabbit_disk_queue:delete_non_durable_queues( - DurableQueueNames) + ok = rabbit_amqqueue:recover() + end}, + {"persister", + fun () -> + ok = start_child(rabbit_persister) end}, {"guid generator", fun () -> diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 309c9a0e..21999f16 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -41,7 +41,7 @@ -define(MEMSUP_CHECK_INTERVAL, 1000). %% OSes on which we know memory alarms to be trustworthy --define(SUPPORTED_OS, [{unix, linux}, {unix, darwin}]). +-define(SUPPORTED_OS, [{unix, linux}]). -record(alarms, {alertees, system_memory_high_watermark = false}). @@ -136,35 +136,33 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- start_memsup() -> - {Mod, Args} = - case os:type() of - %% memsup doesn't take account of buffers or cache when - %% considering "free" memory - therefore on Linux we can - %% get memory alarms very easily without any pressure - %% existing on memory at all. Therefore we need to use - %% our own simple memory monitor. - %% - {unix, linux} -> {rabbit_memsup, [rabbit_memsup_linux]}; - {unix, darwin} -> {rabbit_memsup, [rabbit_memsup_darwin]}; - - %% Start memsup programmatically rather than via the - %% rabbitmq-server script. This is not quite the right - %% thing to do as os_mon checks to see if memsup is - %% available before starting it, but as memsup is - %% available everywhere (even on VXWorks) it should be - %% ok. - %% - %% One benefit of the programmatic startup is that we - %% can add our alarm_handler before memsup is running, - %% thus ensuring that we notice memory alarms that go - %% off on startup. - %% - _ -> {memsup, []} - end, + Mod = case os:type() of + %% memsup doesn't take account of buffers or cache when + %% considering "free" memory - therefore on Linux we can + %% get memory alarms very easily without any pressure + %% existing on memory at all. Therefore we need to use + %% our own simple memory monitor. + %% + {unix, linux} -> rabbit_memsup_linux; + + %% Start memsup programmatically rather than via the + %% rabbitmq-server script. This is not quite the right + %% thing to do as os_mon checks to see if memsup is + %% available before starting it, but as memsup is + %% available everywhere (even on VXWorks) it should be + %% ok. + %% + %% One benefit of the programmatic startup is that we + %% can add our alarm_handler before memsup is running, + %% thus ensuring that we notice memory alarms that go + %% off on startup. + %% + _ -> memsup + end, %% This is based on os_mon:childspec(memsup, true) {ok, _} = supervisor:start_child( os_mon_sup, - {memsup, {Mod, start_link, Args}, + {memsup, {Mod, start_link, []}, permanent, 2000, worker, [Mod]}), ok. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 62ea465d..4903c2c5 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,6 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/3, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -63,7 +62,7 @@ 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). -spec(start/0 :: () -> 'ok'). --spec(recover/0 :: () -> {'ok', [amqqueue()]}). +-spec(recover/0 :: () -> 'ok'). -spec(declare/4 :: (queue_name(), bool(), bool(), amqp_table()) -> amqqueue()). -spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). @@ -102,13 +101,10 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). --spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). --spec(report_memory/1 :: (pid()) -> 'ok'). -endif. @@ -123,42 +119,37 @@ start() -> ok. recover() -> - {ok, DurableQueues} = recover_durable_queues(), - {ok, DurableQueues}. + ok = recover_durable_queues(), + ok. recover_durable_queues() -> Node = node(), - DurableQueues = - lists:foldl( - fun (RecoveredQ, Acc) -> - Q = start_queue_process(RecoveredQ), - %% We need to catch the case where a client connected to - %% another node has deleted the queue (and possibly - %% re-created it). - case rabbit_misc:execute_mnesia_transaction( - fun () -> - Match = - mnesia:match_object( - rabbit_durable_queue, RecoveredQ, read), - case Match of - [_] -> ok = store_queue(Q), - true; - [] -> false - end - end) of - true -> [Q|Acc]; - false -> exit(Q#amqqueue.pid, shutdown), - Acc - end - end, [], - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end)), - {ok, DurableQueues}. + lists:foreach( + fun (RecoveredQ) -> + Q = start_queue_process(RecoveredQ), + %% We need to catch the case where a client connected to + %% another node has deleted the queue (and possibly + %% re-created it). + case rabbit_misc:execute_mnesia_transaction( + fun () -> case mnesia:match_object( + rabbit_durable_queue, RecoveredQ, read) of + [_] -> ok = store_queue(Q), + true; + [] -> false + end + end) of + true -> ok; + false -> exit(Q#amqqueue.pid, shutdown) + end + end, + %% TODO: use dirty ops instead + rabbit_misc:execute_mnesia_transaction( + fun () -> + qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} + <- mnesia:table(rabbit_durable_queue), + node(Pid) == Node])) + end)), + ok. declare(QueueName, Durable, AutoDelete, Args) -> Q = start_queue_process(#amqqueue{name = QueueName, @@ -225,23 +216,6 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). -set_mode_pin(VHostPath, Queue, Disk) - when is_binary(VHostPath) andalso is_binary(Queue) -> - with(rabbit_misc:r(VHostPath, queue, Queue), - fun(Q) -> case Disk of - true -> rabbit_queue_mode_manager:pin_to_disk - (Q #amqqueue.pid); - false -> rabbit_queue_mode_manager:unpin_from_disk - (Q #amqqueue.pid) - end - end). - -set_mode(QPid, Mode) -> - gen_server2:pcast(QPid, 10, {set_mode, Mode}). - -report_memory(QPid) -> - gen_server2:cast(QPid, report_memory). - info(#amqqueue{ pid = QPid }) -> gen_server2:pcall(QPid, 9, info, infinity). @@ -329,10 +303,10 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> infinity). notify_sent(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {notify_sent, ChPid}). + gen_server2:cast(QPid, {notify_sent, ChPid}). unblock(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {unblock, ChPid}). + gen_server2:cast(QPid, {unblock, ChPid}). internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 14a0370d..fe2e8509 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -38,12 +38,10 @@ -define(UNSENT_MESSAGE_LIMIT, 100). -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds -export([start_link/1]). --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1]). +-export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]). -import(queue). -import(erlang). @@ -54,12 +52,10 @@ owner, exclusive_consumer, has_had_consumers, - mixed_state, next_msg_id, + message_buffer, active_consumers, - blocked_consumers, - memory_report_timer - }). + blocked_consumers}). -record(consumer, {tag, ack_required}). @@ -88,9 +84,7 @@ acks_uncommitted, consumers, transactions, - memory, - mode - ]). + memory]). %%---------------------------------------------------------------------------- @@ -99,35 +93,24 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable }) -> +init(Q) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), - ok = rabbit_queue_mode_manager:register - (self(), false, rabbit_amqqueue, set_mode, [self()]), - {ok, MS} = rabbit_mixed_queue:init(QName, Durable), - State = #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - mixed_state = MS, - next_msg_id = 1, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - memory_report_timer = undefined - }, - %% first thing we must do is report_memory which will clear out - %% the 'undefined' values in gain and loss in mixed_queue state - {ok, start_memory_timer(State), hibernate, + {ok, #q{q = Q, + owner = none, + exclusive_consumer = none, + has_had_consumers = false, + next_msg_id = 1, + message_buffer = queue:new(), + active_consumers = queue:new(), + blocked_consumers = queue:new()}, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. terminate(_Reason, State) -> %% FIXME: How do we cancel active subscriptions? QName = qname(State), - NewState = - lists:foldl(fun (Txn, State1) -> - rollback_transaction(Txn, State1) - end, State, all_tx()), - rabbit_mixed_queue:delete_queue(NewState #q.mixed_state), - stop_memory_timer(NewState), + lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, + all_tx()), + ok = purge_message_buffer(QName, State#q.message_buffer), ok = rabbit_amqqueue:internal_delete(QName). code_change(_OldVsn, State, _Extra) -> @@ -135,24 +118,9 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- -reply(Reply, NewState) -> - {reply, Reply, start_memory_timer(NewState), hibernate}. +reply(Reply, NewState) -> {reply, Reply, NewState, hibernate}. -noreply(NewState) -> - {noreply, start_memory_timer(NewState), hibernate}. - -start_memory_timer(State = #q { memory_report_timer = undefined }) -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_amqqueue, report_memory, [self()]), - report_memory(false, State #q { memory_report_timer = TRef }); -start_memory_timer(State) -> - State. - -stop_memory_timer(State = #q { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #q { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #q { memory_report_timer = undefined }. +noreply(NewState) -> {noreply, NewState, hibernate}. lookup_ch(ChPid) -> case get({ch, ChPid}) of @@ -199,11 +167,12 @@ record_current_channel_tx(ChPid, Txn) -> %% that wasn't happening already) store_ch_record((ch_record(ChPid))#cr{txn = Txn}). -deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers, - next_msg_id = NextId}) -> +deliver_immediately(Message, Delivered, + State = #q{q = #amqqueue{name = QName}, + active_consumers = ActiveConsumers, + blocked_consumers = BlockedConsumers, + next_msg_id = NextId}) -> + ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), case queue:out(ActiveConsumers) of {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, ack_required = AckRequired}}}, @@ -211,21 +180,15 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, C = #cr{limiter_pid = LimiterPid, unsent_message_count = Count, unacked_messages = UAM} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of + case rabbit_limiter:can_send(LimiterPid, self(), AckRequired) of true -> - {{Msg, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Msg]), rabbit_channel:deliver( ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, IsDelivered, Msg}), - NewUAM = - case AckRequired of - true -> dict:store(NextId, {Msg, AckTag}, UAM); - false -> UAM - end, + {QName, self(), NextId, Delivered, Message}), + NewUAM = case AckRequired of + true -> dict:store(NextId, Message, UAM); + false -> UAM + end, NewC = C#cr{unsent_message_count = Count + 1, unacked_messages = NewUAM}, store_ch_record(NewC), @@ -241,113 +204,54 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, {ActiveConsumers1, queue:in(QEntry, BlockedConsumers1)} end, - State2 = State1 #q { - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers, - next_msg_id = NextId + 1 - }, - deliver_queue(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> + {offered, AckRequired, + State#q{active_consumers = NewActiveConsumers, + blocked_consumers = NewBlockedConsumers, + next_msg_id = NextId + 1}}; + false -> store_ch_record(C#cr{is_limit_active = true}), {NewActiveConsumers, NewBlockedConsumers} = move_consumers(ChPid, ActiveConsumers, BlockedConsumers), - deliver_queue( - Funs, FunAcc, + deliver_immediately( + Message, Delivered, State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} + blocked_consumers = NewBlockedConsumers}) end; {empty, _} -> - {FunAcc, State} + {not_offered, State} end. -deliver_from_queue_pred({IsEmpty, _AutoAcks}, _State) -> - not IsEmpty. -deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, - State = #q { mixed_state = MS }) -> - {{Msg, IsDelivered, AckTag, Remaining}, MS1} = - rabbit_mixed_queue:deliver(MS), - AutoAcks1 = - case AckRequired of - true -> AutoAcks; - false -> [{Msg, AckTag} | AutoAcks] - end, - {{Msg, IsDelivered, AckTag}, {0 == Remaining, AutoAcks1}, - State #q { mixed_state = MS1 }}. - -run_message_queue(State = #q { mixed_state = MS }) -> - Funs = { fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3 }, - IsEmpty = rabbit_mixed_queue:is_empty(MS), - {{_IsEmpty1, AutoAcks}, State1} = - deliver_queue(Funs, {IsEmpty, []}, State), - {ok, MS1} = - rabbit_mixed_queue:ack(AutoAcks, State1 #q.mixed_state), - State1 #q { mixed_state = MS1 }. - -attempt_immediate_delivery(none, _ChPid, Msg, State) -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1) -> - {AckTag, State2} = - case AckRequired of - true -> - {ok, AckTag1, MS} = - rabbit_mixed_queue:publish_delivered( - Msg, State1 #q.mixed_state), - {AckTag1, State1 #q { mixed_state = MS }}; - false -> - {noack, State1} - end, - {{Msg, false, AckTag}, true, State2} - end, - deliver_queue({ PredFun, DeliverFun }, false, State); -attempt_immediate_delivery(Txn, ChPid, Msg, State) -> - {ok, MS} = rabbit_mixed_queue:tx_publish(Msg, State #q.mixed_state), - record_pending_message(Txn, ChPid, Msg), - {true, State #q { mixed_state = MS }}. - -deliver_or_enqueue(Txn, ChPid, Msg, State) -> - case attempt_immediate_delivery(Txn, ChPid, Msg, State) of +attempt_delivery(none, _ChPid, Message, State) -> + case deliver_immediately(Message, false, State) of + {offered, false, State1} -> + {true, State1}; + {offered, true, State1} -> + persist_message(none, qname(State), Message), + persist_delivery(qname(State), Message, false), + {true, State1}; + {not_offered, State1} -> + {false, State1} + end; +attempt_delivery(Txn, ChPid, Message, State) -> + persist_message(Txn, qname(State), Message), + record_pending_message(Txn, ChPid, Message), + {true, State}. + +deliver_or_enqueue(Txn, ChPid, Message, State) -> + case attempt_delivery(Txn, ChPid, Message, State) of {true, NewState} -> {true, NewState}; {false, NewState} -> - %% Txn is none and no unblocked channels with consumers - {ok, MS} = rabbit_mixed_queue:publish(Msg, State #q.mixed_state), - {false, NewState #q { mixed_state = MS }} - end. - -%% all these messages have already been delivered at least once and -%% not ack'd, but need to be either redelivered or requeued -deliver_or_requeue_n([], State) -> - run_message_queue(State); -deliver_or_requeue_n(MsgsWithAcks, State) -> - Funs = { fun deliver_or_requeue_msgs_pred/2, - fun deliver_or_requeue_msgs_deliver/3 }, - {{_RemainingLengthMinusOne, AutoAcks, OutstandingMsgs}, NewState} = - deliver_queue(Funs, {length(MsgsWithAcks) - 1, [], MsgsWithAcks}, - State), - {ok, MS} = rabbit_mixed_queue:ack(AutoAcks, - NewState #q.mixed_state), - case OutstandingMsgs of - [] -> run_message_queue(NewState #q { mixed_state = MS }); - _ -> {ok, MS1} = rabbit_mixed_queue:requeue(OutstandingMsgs, MS), - NewState #q { mixed_state = MS1 } + persist_message(Txn, qname(State), Message), + NewMB = queue:in({Message, false}, NewState#q.message_buffer), + {false, NewState#q{message_buffer = NewMB}} end. -deliver_or_requeue_msgs_pred({Len, _AcksAcc, _MsgsWithAcks}, _State) -> - -1 < Len. -deliver_or_requeue_msgs_deliver( - false, {Len, AcksAcc, [(MsgAckTag = {Msg, _}) | MsgsWithAcks]}, State) -> - {{Msg, true, noack}, {Len - 1, [MsgAckTag | AcksAcc], MsgsWithAcks}, State}; -deliver_or_requeue_msgs_deliver( - true, {Len, AcksAcc, [{Msg, AckTag} | MsgsWithAcks]}, State) -> - {{Msg, true, AckTag}, {Len - 1, AcksAcc, MsgsWithAcks}, State}. +deliver_or_enqueue_n(Messages, State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(queue:join(MessageBuffer, queue:from_list(Messages)), + State). add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). @@ -381,7 +285,7 @@ possibly_unblock(State, ChPid, Update) -> move_consumers(ChPid, State#q.blocked_consumers, State#q.active_consumers), - run_message_queue( + run_poke_burst( State#q{active_consumers = NewActiveConsumers, blocked_consumers = NewBlockedeConsumers}) end @@ -398,27 +302,27 @@ handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> unacked_messages = UAM} -> erlang:demonitor(MonitorRef), erase({ch, ChPid}), - State1 = - case Txn of - none -> State; - _ -> rollback_transaction(Txn, State) - end, - State2 = - deliver_or_requeue_n( - [MsgWithAck || - {_MsgId, MsgWithAck} <- dict:to_list(UAM)], - State1 #q { + case Txn of + none -> ok; + _ -> ok = rollback_work(Txn, qname(State)), + erase_tx(Txn) + end, + NewState = + deliver_or_enqueue_n( + [{Message, true} || + {_Messsage_id, Message} <- dict:to_list(UAM)], + State#q{ exclusive_consumer = case Holder of {ChPid, _} -> none; Other -> Other end, active_consumers = remove_consumers( - ChPid, State1#q.active_consumers), + ChPid, State#q.active_consumers), blocked_consumers = remove_consumers( - ChPid, State1#q.blocked_consumers)}), - case should_auto_delete(State2) of - false -> noreply(State2); - true -> {stop, normal, State2} + ChPid, State#q.blocked_consumers)}), + case should_auto_delete(NewState) of + false -> noreply(NewState); + true -> {stop, normal, NewState} end end. @@ -441,6 +345,26 @@ check_exclusive_access(none, true, State) -> false -> in_use end. +run_poke_burst(State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(MessageBuffer, State). + +run_poke_burst(MessageBuffer, State) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> + case deliver_immediately(Message, Delivered, State) of + {offered, true, NewState} -> + persist_delivery(qname(State), Message, Delivered), + run_poke_burst(BufferTail, NewState); + {offered, false, NewState} -> + persist_auto_ack(qname(State), Message), + run_poke_burst(BufferTail, NewState); + {not_offered, NewState} -> + NewState#q{message_buffer = MessageBuffer} + end; + {empty, _} -> + State#q{message_buffer = MessageBuffer} + end. + is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso queue:is_empty(State#q.blocked_consumers). @@ -449,6 +373,62 @@ maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). qname(#q{q = #amqqueue{name = QName}}) -> QName. +persist_message(_Txn, _QName, #basic_message{persistent_key = none}) -> + ok; +persist_message(Txn, QName, Message) -> + M = Message#basic_message{ + %% don't persist any recoverable decoded properties, rebuild from properties_bin on restore + content = rabbit_binary_parser:clear_decoded_content( + Message#basic_message.content)}, + persist_work(Txn, QName, + [{publish, M, {QName, M#basic_message.persistent_key}}]). + +persist_delivery(_QName, _Message, + true) -> + ok; +persist_delivery(_QName, #basic_message{persistent_key = none}, + _Delivered) -> + ok; +persist_delivery(QName, #basic_message{persistent_key = PKey}, + _Delivered) -> + persist_work(none, QName, [{deliver, {QName, PKey}}]). + +persist_acks(Txn, QName, Messages) -> + persist_work(Txn, QName, + [{ack, {QName, PKey}} || + #basic_message{persistent_key = PKey} <- Messages, + PKey =/= none]). + +persist_auto_ack(_QName, #basic_message{persistent_key = none}) -> + ok; +persist_auto_ack(QName, #basic_message{persistent_key = PKey}) -> + %% auto-acks are always non-transactional + rabbit_persister:dirty_work([{ack, {QName, PKey}}]). + +persist_work(_Txn,_QName, []) -> + ok; +persist_work(none, _QName, WorkList) -> + rabbit_persister:dirty_work(WorkList); +persist_work(Txn, QName, WorkList) -> + mark_tx_persistent(Txn), + rabbit_persister:extend_transaction({Txn, QName}, WorkList). + +commit_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:commit_transaction/1, + Txn, QName). + +rollback_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:rollback_transaction/1, + Txn, QName). + +%% optimisation: don't do unnecessary work +%% it would be nice if this was handled by the persister +do_if_persistent(F, Txn, QName) -> + case is_tx_persistent(Txn) of + false -> ok; + true -> ok = F({Txn, QName}) + end. + lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx{ch_pid = none, @@ -470,14 +450,19 @@ all_tx_record() -> all_tx() -> [Txn || {{txn, Txn}, _} <- get()]. -record_pending_message(Txn, ChPid, Message = - #basic_message { is_persistent = IsPersistent }) -> - Tx = #tx{pending_messages = Pending, is_persistent = IsPersistentTxn } = - lookup_tx(Txn), +mark_tx_persistent(Txn) -> + Tx = lookup_tx(Txn), + store_tx(Txn, Tx#tx{is_persistent = true}). + +is_tx_persistent(Txn) -> + #tx{is_persistent = Res} = lookup_tx(Txn), + Res. + +record_pending_message(Txn, ChPid, Message) -> + Tx = #tx{pending_messages = Pending} = lookup_tx(Txn), record_current_channel_tx(ChPid, Txn), - store_tx(Txn, Tx #tx { pending_messages = [Message | Pending], - is_persistent = IsPersistentTxn orelse IsPersistent - }). + store_tx(Txn, Tx#tx{pending_messages = [{Message, false} | Pending], + ch_pid = ChPid}). record_pending_acks(Txn, ChPid, MsgIds) -> Tx = #tx{pending_acks = Pending} = lookup_tx(Txn), @@ -485,53 +470,48 @@ record_pending_acks(Txn, ChPid, MsgIds) -> store_tx(Txn, Tx#tx{pending_acks = [MsgIds | Pending], ch_pid = ChPid}). -commit_transaction(Txn, State) -> - #tx { ch_pid = ChPid, - pending_messages = PendingMessages, - pending_acks = PendingAcks - } = lookup_tx(Txn), - PendingMessagesOrdered = lists:reverse(PendingMessages), - PendingAcksOrdered = lists:append(PendingAcks), - Acks = - case lookup_ch(ChPid) of - not_found -> []; - C = #cr { unacked_messages = UAM } -> - {MsgWithAcks, Remaining} = - collect_messages(PendingAcksOrdered, UAM), - store_ch_record(C#cr{unacked_messages = Remaining}), - MsgWithAcks - end, - {ok, MS} = rabbit_mixed_queue:tx_commit( - PendingMessagesOrdered, Acks, State #q.mixed_state), - State #q { mixed_state = MS }. - -rollback_transaction(Txn, State) -> - #tx { pending_messages = PendingMessages - } = lookup_tx(Txn), - {ok, MS} = rabbit_mixed_queue:tx_cancel(PendingMessages, - State #q.mixed_state), - erase_tx(Txn), - State #q { mixed_state = MS }. +process_pending(Txn, State) -> + #tx{ch_pid = ChPid, + pending_messages = PendingMessages, + pending_acks = PendingAcks} = lookup_tx(Txn), + case lookup_ch(ChPid) of + not_found -> ok; + C = #cr{unacked_messages = UAM} -> + {_Acked, Remaining} = + collect_messages(lists:append(PendingAcks), UAM), + store_ch_record(C#cr{unacked_messages = Remaining}) + end, + deliver_or_enqueue_n(lists:reverse(PendingMessages), State). -%% {A, B} = collect_messages(C, D) %% A = C `intersect` D; B = D \\ C -%% err, A = C `intersect` D , via projection through the dict that is C collect_messages(MsgIds, UAM) -> lists:mapfoldl( fun (MsgId, D) -> {dict:fetch(MsgId, D), dict:erase(MsgId, D)} end, UAM, MsgIds). +purge_message_buffer(QName, MessageBuffer) -> + Messages = + [[Message || {Message, _Delivered} <- + queue:to_list(MessageBuffer)] | + lists:map( + fun (#cr{unacked_messages = UAM}) -> + [Message || {_MessageId, Message} <- dict:to_list(UAM)] + end, + all_ch_record())], + %% the simplest, though certainly not the most obvious or + %% efficient, way to purge messages from the persister is to + %% artifically ack them. + persist_acks(none, QName, lists:append(Messages)). + infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. i(name, #q{q = #amqqueue{name = Name}}) -> Name; i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(mode, #q{ mixed_state = MS }) -> - rabbit_mixed_queue:info(MS); i(pid, _) -> self(); -i(messages_ready, #q { mixed_state = MS }) -> - rabbit_mixed_queue:length(MS); +i(messages_ready, #q{message_buffer = MessageBuffer}) -> + queue:len(MessageBuffer); i(messages_unacknowledged, _) -> lists:sum([dict:size(UAM) || #cr{unacked_messages = UAM} <- all_ch_record()]); @@ -555,12 +535,6 @@ i(memory, _) -> i(Item, _) -> throw({bad_argument, Item}). -report_memory(Hib, State = #q { mixed_state = MS }) -> - {MS1, MSize, Gain, Loss} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - rabbit_queue_mode_manager:report_memory(self(), MSize, Gain, Loss, Hib), - State #q { mixed_state = MS1 }. - %--------------------------------------------------------------------------- handle_call(info, _From, State) -> @@ -586,8 +560,7 @@ handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> %% just all ready-to-consume queues get the message, with unready %% queues discarding the message? %% - {Delivered, NewState} = - attempt_immediate_delivery(Txn, ChPid, Message, State), + {Delivered, NewState} = attempt_delivery(Txn, ChPid, Message, State), reply(Delivered, NewState); handle_call({deliver, Txn, Message, ChPid}, _From, State) -> @@ -596,11 +569,12 @@ handle_call({deliver, Txn, Message, ChPid}, _From, State) -> reply(Delivered, NewState); handle_call({commit, Txn}, From, State) -> - NewState = commit_transaction(Txn, State), + ok = commit_work(Txn, qname(State)), %% optimisation: we reply straight away so the sender can continue gen_server2:reply(From, ok), + NewState = process_pending(Txn, State), erase_tx(Txn), - noreply(run_message_queue(NewState)); + noreply(NewState); handle_call({notify_down, ChPid}, From, State) -> %% optimisation: we reply straight away so the sender can continue @@ -610,27 +584,25 @@ handle_call({notify_down, ChPid}, From, State) -> handle_call({basic_get, ChPid, NoAck}, _From, State = #q{q = #amqqueue{name = QName}, next_msg_id = NextId, - mixed_state = MS - }) -> - case rabbit_mixed_queue:deliver(MS) of - {empty, MS1} -> reply(empty, State #q { mixed_state = MS1 }); - {{Msg, IsDelivered, AckTag, Remaining}, MS1} -> + message_buffer = MessageBuffer}) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> AckRequired = not(NoAck), - {ok, MS3} = - case AckRequired of - true -> - C = #cr{unacked_messages = UAM} = ch_record(ChPid), - NewUAM = dict:store(NextId, {Msg, AckTag}, UAM), - store_ch_record(C#cr{unacked_messages = NewUAM}), - {ok, MS1}; - false -> - rabbit_mixed_queue:ack([{Msg, AckTag}], MS1) - end, - Message = {QName, self(), NextId, IsDelivered, Msg}, - reply({ok, Remaining, Message}, - State #q { next_msg_id = NextId + 1, - mixed_state = MS3 - }) + case AckRequired of + true -> + persist_delivery(QName, Message, Delivered), + C = #cr{unacked_messages = UAM} = ch_record(ChPid), + NewUAM = dict:store(NextId, Message, UAM), + store_ch_record(C#cr{unacked_messages = NewUAM}); + false -> + persist_auto_ack(QName, Message) + end, + Msg = {QName, self(), NextId, Delivered, Message}, + reply({ok, queue:len(BufferTail), Msg}, + State#q{message_buffer = BufferTail, + next_msg_id = NextId + 1}); + {empty, _} -> + reply(empty, State) end; handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, @@ -651,14 +623,15 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, ack_required = not(NoAck)}, store_ch_record(C#cr{consumer_count = ConsumerCount +1, limiter_pid = LimiterPid}), - case ConsumerCount of - 0 -> ok = rabbit_limiter:register(LimiterPid, self()); - _ -> ok + if ConsumerCount == 0 -> + ok = rabbit_limiter:register(LimiterPid, self()); + true -> + ok end, - ExclusiveConsumer = case ExclusiveConsume of - true -> {ChPid, ConsumerTag}; - false -> ExistingHolder - end, + ExclusiveConsumer = + if ExclusiveConsume -> {ChPid, ConsumerTag}; + true -> ExistingHolder + end, State1 = State#q{has_had_consumers = true, exclusive_consumer = ExclusiveConsumer}, ok = maybe_send_reply(ChPid, OkMsg), @@ -669,7 +642,7 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, add_consumer( ChPid, Consumer, State1#q.blocked_consumers)}; - false -> run_message_queue( + false -> run_poke_burst( State1#q{ active_consumers = add_consumer( @@ -688,10 +661,11 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, reply(ok, State); C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - ok = case ConsumerCount of - 1 -> rabbit_limiter:unregister(LimiterPid, self()); - _ -> ok - end, + if ConsumerCount == 1 -> + ok = rabbit_limiter:unregister(LimiterPid, self()); + true -> + ok + end, ok = maybe_send_reply(ChPid, OkMsg), NewState = State#q{exclusive_consumer = cancel_holder(ChPid, @@ -710,15 +684,14 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, end; handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, - mixed_state = MS, + message_buffer = MessageBuffer, active_consumers = ActiveConsumers}) -> - Length = rabbit_mixed_queue:length(MS), - reply({ok, Name, Length, queue:len(ActiveConsumers)}, State); + reply({ok, Name, queue:len(MessageBuffer), queue:len(ActiveConsumers)}, + State); handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q { mixed_state = MS }) -> - Length = rabbit_mixed_queue:length(MS), - IsEmpty = Length == 0, + State = #q{message_buffer = MessageBuffer}) -> + IsEmpty = queue:is_empty(MessageBuffer), IsUnused = is_unused(State), if IfEmpty and not(IsEmpty) -> @@ -726,16 +699,16 @@ handle_call({delete, IfUnused, IfEmpty}, _From, IfUnused and not(IsUnused) -> reply({error, in_use}, State); true -> - {stop, normal, {ok, Length}, State} + {stop, normal, {ok, queue:len(MessageBuffer)}, State} end; -handle_call(purge, _From, State) -> - {Count, MS} = rabbit_mixed_queue:purge(State #q.mixed_state), - reply({ok, Count}, - State #q { mixed_state = MS }); +handle_call(purge, _From, State = #q{message_buffer = MessageBuffer}) -> + ok = purge_message_buffer(qname(State), MessageBuffer), + reply({ok, queue:len(MessageBuffer)}, + State#q{message_buffer = queue:new()}); -handle_call({claim_queue, ReaderPid}, _From, - State = #q{owner = Owner, exclusive_consumer = Holder}) -> +handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, + exclusive_consumer = Holder}) -> case Owner of none -> case check_exclusive_access(Holder, true, State) of @@ -748,10 +721,7 @@ handle_call({claim_queue, ReaderPid}, _From, %% pid... reply(locked, State); ok -> - reply(ok, State #q { owner = - {ReaderPid, - erlang:monitor(process, ReaderPid)} }) - + reply(ok, State#q{owner = {ReaderPid, erlang:monitor(process, ReaderPid)}}) end; {ReaderPid, _MonitorRef} -> reply(ok, State); @@ -769,21 +739,24 @@ handle_cast({ack, Txn, MsgIds, ChPid}, State) -> not_found -> noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, Remaining} = collect_messages(MsgIds, UAM), + {Acked, Remaining} = collect_messages(MsgIds, UAM), + persist_acks(Txn, qname(State), Acked), case Txn of none -> - {ok, MS} = - rabbit_mixed_queue:ack(MsgWithAcks, State #q.mixed_state), - store_ch_record(C#cr{unacked_messages = Remaining}), - noreply(State #q { mixed_state = MS }); + store_ch_record(C#cr{unacked_messages = Remaining}); _ -> - record_pending_acks(Txn, ChPid, MsgIds), - noreply(State) - end + record_pending_acks(Txn, ChPid, MsgIds) + end, + noreply(State) end; handle_cast({rollback, Txn}, State) -> - noreply(rollback_transaction(Txn, State)); + ok = rollback_work(Txn, qname(State)), + erase_tx(Txn), + noreply(State); + +handle_cast({redeliver, Messages}, State) -> + noreply(deliver_or_enqueue_n(Messages, State)); handle_cast({requeue, MsgIds, ChPid}, State) -> case lookup_ch(ChPid) of @@ -792,9 +765,10 @@ handle_cast({requeue, MsgIds, ChPid}, State) -> [ChPid]), noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, NewUAM} = collect_messages(MsgIds, UAM), + {Messages, NewUAM} = collect_messages(MsgIds, UAM), store_ch_record(C#cr{unacked_messages = NewUAM}), - noreply(deliver_or_requeue_n(MsgWithAcks, State)) + noreply(deliver_or_enqueue_n( + [{Message, true} || Message <- Messages], State)) end; handle_cast({unblock, ChPid}, State) -> @@ -823,22 +797,7 @@ handle_cast({limit, ChPid, LimiterPid}, State) -> end, NewLimited = Limited andalso LimiterPid =/= undefined, C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> - PendingMessages = - lists:flatten([Pending || #tx { pending_messages = Pending} - <- all_tx_record()]), - {ok, MS1} = (case Mode of - disk -> fun rabbit_mixed_queue:to_disk_only_mode/2; - mixed -> fun rabbit_mixed_queue:to_mixed_mode/2 - end)(PendingMessages, MS), - noreply(State #q { mixed_state = MS1 }); - -handle_cast(report_memory, State) -> - %% deliberately don't call noreply/2 as we don't want to restart the timer - %% by unsetting the timer, we force a report on the next normal message - {noreply, State #q { memory_report_timer = undefined }, hibernate}. + end)). handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> @@ -859,10 +818,3 @@ handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> handle_info(Info, State) -> ?LOGDEBUG("Info in queue: ~p~n", [Info]), {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q { mixed_state = MS }) -> - MS1 = rabbit_mixed_queue:maybe_prefetch(MS), - State1 = - stop_memory_timer(report_memory(true, State #q { mixed_state = MS1 })), - %% don't call noreply/1 as that'll restart the memory_report_timer - {hibernate, State1}. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 8adb608f..4033aaaf 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -33,8 +33,8 @@ -include("rabbit.hrl"). -include("rabbit_framing.hrl"). --export([publish/1, message/4, message/5, message/6, delivery/4]). --export([properties/1, publish/4, publish/7]). +-export([publish/1, message/4, properties/1, delivery/4]). +-export([publish/4, publish/7]). -export([build_content/2, from_content/1]). %%---------------------------------------------------------------------------- @@ -48,10 +48,6 @@ -spec(delivery/4 :: (bool(), bool(), maybe(txn()), message()) -> delivery()). -spec(message/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> message()). --spec(message/5 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid()) -> message()). --spec(message/6 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid(), bool()) -> message()). -spec(properties/1 :: (properties_input()) -> amqp_properties()). -spec(publish/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> publish_result()). @@ -95,18 +91,11 @@ from_content(Content) -> {Props, list_to_binary(lists:reverse(FragmentsRev))}. message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, rabbit_guid:guid()). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, false). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, IsPersistent) -> Properties = properties(RawProperties), #basic_message{exchange_name = ExchangeName, routing_key = RoutingKeyBin, content = build_content(Properties, BodyBin), - guid = MsgId, - is_persistent = IsPersistent}. + persistent_key = none}. properties(P = #'P_basic'{}) -> P; diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 397659c1..16b7c938 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -317,11 +317,14 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, %% We decode the content's properties here because we're almost %% certain to want to look at delivery-mode and priority. DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), + PersistentKey = case is_message_persistent(DecodedContent) of + true -> rabbit_guid:guid(); + false -> none + end, Message = #basic_message{exchange_name = ExchangeName, routing_key = RoutingKey, content = DecodedContent, - guid = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent)}, + persistent_key = PersistentKey}, {RoutingRes, DeliveredQPids} = rabbit_exchange:publish( Exchange, diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 99bbb742..37e4d189 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,9 +137,6 @@ Available commands: list_bindings [-p ] list_connections [ ...] - pin_queue_to_disk - unpin_queue_from_disk - Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -155,8 +152,8 @@ virtual host parameter for which to display results. The default value is \"/\". must be a member of the list [name, durable, auto_delete, arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, -messages, acks_uncommitted, consumers, transactions, memory, mode]. The default -is to display name and (number of) messages. +messages, acks_uncommitted, consumers, transactions, memory]. The default is + to display name and (number of) messages. must be a member of the list [name, type, durable, auto_delete, arguments]. The default is to display name and type. @@ -169,9 +166,6 @@ peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. -pin_queue_to_disk will force a queue to be in disk mode. -unpin_queue_from_disk will permit a queue that has been pinned to disk mode -to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -286,18 +280,6 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). -action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> - Inform("Pinning queue ~p in vhost ~p to disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), true]); - -action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> - Inform("Unpinning queue ~p in vhost ~p from disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), false]); - action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl deleted file mode 100644 index 5940f5ad..00000000 --- a/src/rabbit_disk_queue.erl +++ /dev/null @@ -1,1973 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_disk_queue). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([handle_pre_hibernate/1]). - --export([publish/3, deliver/1, phantom_deliver/1, ack/2, - tx_publish/1, tx_commit/3, tx_cancel/1, - requeue/2, purge/1, delete_queue/1, - delete_non_durable_queues/1, auto_ack_next_message/1, - requeue_next_n/2, length/1, foldl/3, prefetch/1 - ]). - --export([filesync/0, cache_info/0]). - --export([stop/0, stop_and_obliterate/0, report_memory/0, - set_mode/1, to_disk_only_mode/0, to_ram_disk_mode/0]). - --include("rabbit.hrl"). - --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_TRANSIENT, 255). --define(WRITE_OK_PERSISTENT, 254). --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(MSG_LOC_NAME, rabbit_disk_queue_msg_location). --define(FILE_SUMMARY_ETS_NAME, rabbit_disk_queue_file_summary). --define(SEQUENCE_ETS_NAME, rabbit_disk_queue_sequences). --define(CACHE_ETS_NAME, rabbit_disk_queue_cache). --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). --define(FILE_EXTENSION_DETS, ".dets"). --define(FILE_PACKING_ADJUSTMENT, (1 + (2* (?INTEGER_SIZE_BYTES)))). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds --define(BATCH_SIZE, 10000). --define(CACHE_MAX_SIZE, 10485760). - --define(SERVER, ?MODULE). - --define(MAX_READ_FILE_HANDLES, 256). --define(FILE_SIZE_LIMIT, (256*1024*1024)). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(dqstate, - {msg_location_dets, %% where are messages? - msg_location_ets, %% as above, but for ets version - operation_mode, %% ram_disk | disk_only - file_summary, %% what's in the files? - sequences, %% next read and write for each q - current_file_num, %% current file name as number - current_file_name, %% current file name - current_file_handle, %% current file handle - current_offset, %% current offset within current file - current_dirty, %% has the current file been written to - %% since the last fsync? - file_size_limit, %% how big can our files get? - read_file_handles, %% file handles for reading (LRU) - read_file_handles_limit, %% how many file handles can we open? - on_sync_txns, %% list of commiters to run on sync (reversed) - commit_timer_ref, %% TRef for our interval timer - last_sync_offset, %% current_offset at the last time we sync'd - message_cache, %% ets message cache - memory_report_timer, %% TRef for the memory report timer - wordsize, %% bytes in a word on this platform - mnesia_bytes_per_record, %% bytes per record in mnesia in ram_disk mode - ets_bytes_per_record %% bytes per record in msg_location_ets - }). - -%% The components: -%% -%% MsgLocation: this is a (d)ets table which contains: -%% {MsgId, RefCount, File, Offset, TotalSize, IsPersistent} -%% FileSummary: this is an ets table which contains: -%% {File, ValidTotalSize, ContiguousTop, Left, Right} -%% Sequences: this is an ets table which contains: -%% {Q, ReadSeqId, WriteSeqId} -%% rabbit_disk_queue: this is an mnesia table which contains: -%% #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, -%% is_delivered = IsDelivered, -%% msg_id = MsgId -%% } -%% - -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the MsgLocation table); how much useful data is in each file and -%% which files are on the left and right of each other. This is the -%% purpose of the FileSummary table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file, whilst ContiguousTop contains the amount of -%% valid data right at the start of each file. These are needed for -%% garbage collection. -%% -%% On publish, we write the message to disk, record the changes to -%% FileSummary and MsgLocation, and, should this be either a plain -%% publish, or followed by a tx_commit, we record the message in the -%% mnesia table. Sequences exists to enforce ordering of messages as -%% they are published within a queue. -%% -%% On delivery, we read the next message to be read from disk -%% (according to the ReadSeqId for the given queue) and record in the -%% mnesia table that the message has been delivered. -%% -%% On ack we remove the relevant entry from MsgLocation, update -%% FileSummary and delete from the mnesia table. -%% -%% In order to avoid extra mnesia searching, we return the SeqId -%% during delivery which must be returned in ack - it is not possible -%% to ack from MsgId alone. - -%% As messages are ack'd, holes develop in the files. When we discover -%% that either a file is now empty or that it can be combined with the -%% useful data in either its left or right file, we compact the two -%% files together. This keeps disk utilisation high and aids -%% performance. -%% -%% Given the compaction between two files, the left file is considered -%% the ultimate destination for the good data in the right file. If -%% necessary, the good data in the left file which is fragmented -%% throughout the file is written out to a temporary file, then read -%% back in to form a contiguous chunk of good data at the start of the -%% left file. Thus the left file is garbage collected and -%% compacted. Then the good data from the right file is copied onto -%% the end of the left file. MsgLocation and FileSummary tables are -%% updated. -%% -%% On startup, we scan the files we discover, dealing with the -%% possibilites of a crash have occured during a compaction (this -%% consists of tidyup - the compaction is deliberately designed such -%% that data is duplicated on disk rather than risking it being lost), -%% and rebuild the dets and ets tables (MsgLocation, FileSummary, -%% Sequences) from what we find. We ensure that the messages we have -%% discovered on disk match exactly with the messages recorded in the -%% mnesia table. - -%% MsgLocation is deliberately a dets table, and the mnesia table is -%% set to be a disk_only_table in order to ensure that we are not RAM -%% constrained. However, for performance reasons, it is possible to -%% call to_ram_disk_mode/0 which will alter the mnesia table to -%% disc_copies and convert MsgLocation to an ets table. This results -%% in a massive performance improvement, at the expense of greater RAM -%% usage. The idea is that when memory gets tight, we switch to -%% disk_only mode but otherwise try to run in ram_disk mode. - -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten (yes, this is -%% the data the size of which is tracked by the ContiguousTop -%% variable. Judicious use of a mirror is required). -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). - -%% ---- SPECS ---- - --ifdef(use_specs). - --type(seq_id() :: non_neg_integer()). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(publish/3 :: (queue_name(), message(), bool()) -> 'ok'). --spec(deliver/1 :: (queue_name()) -> - ('empty' | {message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}, non_neg_integer()})). --spec(phantom_deliver/1 :: (queue_name()) -> - ( 'empty' | {msg_id(), bool(), bool(), {msg_id(), seq_id()}, - non_neg_integer()})). --spec(prefetch/1 :: (queue_name()) -> 'ok'). --spec(ack/2 :: (queue_name(), [{msg_id(), seq_id()}]) -> 'ok'). --spec(auto_ack_next_message/1 :: (queue_name()) -> 'ok'). --spec(tx_publish/1 :: (message()) -> 'ok'). --spec(tx_commit/3 :: (queue_name(), [{msg_id(), bool()}], - [{msg_id(), seq_id()}]) -> 'ok'). --spec(tx_cancel/1 :: ([msg_id()]) -> 'ok'). --spec(requeue/2 :: (queue_name(), [{{msg_id(), seq_id()}, bool()}]) -> 'ok'). --spec(requeue_next_n/2 :: (queue_name(), non_neg_integer()) -> 'ok'). --spec(purge/1 :: (queue_name()) -> non_neg_integer()). --spec(delete_queue/1 :: (queue_name()) -> 'ok'). --spec(delete_non_durable_queues/1 :: (set()) -> 'ok'). --spec(length/1 :: (queue_name()) -> non_neg_integer()). --spec(foldl/3 :: (fun (({message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}}, A) -> - A), A, queue_name()) -> A). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_obliterate/0 :: () -> 'ok'). --spec(to_disk_only_mode/0 :: () -> 'ok'). --spec(to_ram_disk_mode/0 :: () -> 'ok'). --spec(filesync/0 :: () -> 'ok'). --spec(cache_info/0 :: () -> [{atom(), term()}]). --spec(report_memory/0 :: () -> 'ok'). --spec(set_mode/1 :: ('disk' | 'mixed') -> 'ok'). - --endif. - -%% ---- PUBLIC API ---- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, - [?FILE_SIZE_LIMIT, ?MAX_READ_FILE_HANDLES], []). - -publish(Q, Message = #basic_message {}, IsDelivered) -> - gen_server2:cast(?SERVER, {publish, Q, Message, IsDelivered}). - -deliver(Q) -> - gen_server2:call(?SERVER, {deliver, Q}, infinity). - -phantom_deliver(Q) -> - gen_server2:call(?SERVER, {phantom_deliver, Q}, infinity). - -prefetch(Q) -> - gen_server2:pcast(?SERVER, -1, {prefetch, Q, self()}). - -ack(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {ack, Q, MsgSeqIds}). - -auto_ack_next_message(Q) -> - gen_server2:cast(?SERVER, {auto_ack_next_message, Q}). - -tx_publish(Message = #basic_message {}) -> - gen_server2:cast(?SERVER, {tx_publish, Message}). - -tx_commit(Q, PubMsgIds, AckSeqIds) - when is_list(PubMsgIds) andalso is_list(AckSeqIds) -> - gen_server2:call(?SERVER, {tx_commit, Q, PubMsgIds, AckSeqIds}, infinity). - -tx_cancel(MsgIds) when is_list(MsgIds) -> - gen_server2:cast(?SERVER, {tx_cancel, MsgIds}). - -requeue(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {requeue, Q, MsgSeqIds}). - -requeue_next_n(Q, N) when is_integer(N) -> - gen_server2:cast(?SERVER, {requeue_next_n, Q, N}). - -purge(Q) -> - gen_server2:call(?SERVER, {purge, Q}, infinity). - -delete_queue(Q) -> - gen_server2:cast(?SERVER, {delete_queue, Q}). - -delete_non_durable_queues(DurableQueues) -> - gen_server2:call(?SERVER, {delete_non_durable_queues, DurableQueues}, - infinity). - -length(Q) -> - gen_server2:call(?SERVER, {length, Q}, infinity). - -foldl(Fun, Init, Acc) -> - gen_server2:call(?SERVER, {foldl, Fun, Init, Acc}, infinity). - -stop() -> - gen_server2:call(?SERVER, stop, infinity). - -stop_and_obliterate() -> - gen_server2:call(?SERVER, stop_vaporise, infinity). - -to_disk_only_mode() -> - gen_server2:pcall(?SERVER, 9, to_disk_only_mode, infinity). - -to_ram_disk_mode() -> - gen_server2:pcall(?SERVER, 9, to_ram_disk_mode, infinity). - -filesync() -> - gen_server2:pcast(?SERVER, 10, filesync). - -cache_info() -> - gen_server2:call(?SERVER, cache_info, infinity). - -report_memory() -> - gen_server2:cast(?SERVER, report_memory). - -set_mode(Mode) -> - gen_server2:pcast(?SERVER, 10, {set_mode, Mode}). - -%% ---- GEN-SERVER INTERNAL API ---- - -init([FileSizeLimit, ReadFileHandlesLimit]) -> - %% If the gen_server is part of a supervision tree and is ordered - %% by its supervisor to terminate, terminate will be called with - %% Reason=shutdown if the following conditions apply: - %% * the gen_server has been set to trap exit signals, and - %% * the shutdown strategy as defined in the supervisor's - %% child specification is an integer timeout value, not - %% brutal_kill. - %% Otherwise, the gen_server will be immediately terminated. - process_flag(trap_exit, true), - ok = rabbit_queue_mode_manager:register - (self(), true, rabbit_disk_queue, set_mode, []), - Node = node(), - ok = - case mnesia:change_table_copy_type(rabbit_disk_queue, Node, - disc_copies) of - {atomic, ok} -> ok; - {aborted, {already_exists, rabbit_disk_queue, Node, - disc_copies}} -> ok; - E -> E - end, - ok = filelib:ensure_dir(form_filename("nothing")), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - {ok, MsgLocationDets} = - dets:open_file(?MSG_LOC_NAME, - [{file, form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)}, - {min_no_slots, 1024*1024}, - %% man says this should be <= 32M. But it works... - {max_no_slots, 30*1024*1024}, - {type, set} - ]), - - %% it would be better to have this as private, but dets:from_ets/2 - %% seems to blow up if it is set private - MsgLocationEts = ets:new(?MSG_LOC_NAME, [set, protected]), - - TRef = start_memory_timer(), - - InitName = "0" ++ ?FILE_EXTENSION, - State = - #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - operation_mode = ram_disk, - file_summary = ets:new(?FILE_SUMMARY_ETS_NAME, - [set, private]), - sequences = ets:new(?SEQUENCE_ETS_NAME, - [set, private]), - current_file_num = 0, - current_file_name = InitName, - current_file_handle = undefined, - current_offset = 0, - current_dirty = false, - file_size_limit = FileSizeLimit, - read_file_handles = {dict:new(), gb_trees:empty()}, - read_file_handles_limit = ReadFileHandlesLimit, - on_sync_txns = [], - commit_timer_ref = undefined, - last_sync_offset = 0, - message_cache = ets:new(?CACHE_ETS_NAME, - [set, private]), - memory_report_timer = TRef, - wordsize = erlang:system_info(wordsize), - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined - }, - {ok, State1 = #dqstate { current_file_name = CurrentName, - current_offset = Offset } } = - load_from_disk(State), - Path = form_filename(CurrentName), - Exists = case file:read_file_info(Path) of - {error,enoent} -> false; - {ok, _} -> true - end, - %% read is only needed so that we can seek - {ok, FileHdl} = file:open(Path, [read, write, raw, binary, delayed_write]), - case Exists of - true -> {ok, Offset} = file:position(FileHdl, {bof, Offset}); - false -> %% new file, so preallocate - ok = preallocate(FileHdl, FileSizeLimit, Offset) - end, - State2 = State1 #dqstate { current_file_handle = FileHdl }, - %% by reporting a memory use of 0, we guarantee the manager will - %% grant us to ram_disk mode. We have to start in ram_disk mode - %% because we can't find values for mnesia_bytes_per_record or - %% ets_bytes_per_record otherwise. - ok = rabbit_queue_mode_manager:report_memory(self(), 0, false), - ok = report_memory(false, State2), - {ok, State2, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, true, false, true, State), - reply(Result, State1); -handle_call({phantom_deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, false, false, true, State), - reply(Result, State1); -handle_call({tx_commit, Q, PubMsgIds, AckSeqIds}, From, State) -> - State1 = - internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, State), - noreply(State1); -handle_call({purge, Q}, _From, State) -> - {ok, Count, State1} = internal_purge(Q, State), - reply(Count, State1); -handle_call({length, Q}, _From, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - reply(WriteSeqId - ReadSeqId, State); -handle_call({foldl, Fun, Init, Q}, _From, State) -> - {ok, Result, State1} = internal_foldl(Q, Fun, Init, State), - reply(Result, State1); -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; %% gen_server now calls terminate -handle_call(stop_vaporise, _From, State) -> - State1 = #dqstate { file_summary = FileSummary, - sequences = Sequences } = - shutdown(State), %% tidy up file handles early - {atomic, ok} = mnesia:clear_table(rabbit_disk_queue), - true = ets:delete(FileSummary), - true = ets:delete(Sequences), - lists:foreach(fun file:delete/1, filelib:wildcard(form_filename("*"))), - {stop, normal, ok, - State1 #dqstate { current_file_handle = undefined, - read_file_handles = {dict:new(), gb_trees:empty()}}}; - %% gen_server now calls terminate, which then calls shutdown -handle_call(to_disk_only_mode, _From, State) -> - reply(ok, to_disk_only_mode(State)); -handle_call(to_ram_disk_mode, _From, State) -> - reply(ok, to_ram_disk_mode(State)); -handle_call({delete_non_durable_queues, DurableQueues}, _From, State) -> - {ok, State1} = internal_delete_non_durable_queues(DurableQueues, State), - reply(ok, State1); -handle_call(cache_info, _From, State = #dqstate { message_cache = Cache }) -> - reply(ets:info(Cache), State). - -handle_cast({publish, Q, Message, IsDelivered}, State) -> - {ok, _MsgSeqId, State1} = internal_publish(Q, Message, IsDelivered, State), - noreply(State1); -handle_cast({ack, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_ack(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({auto_ack_next_message, Q}, State) -> - {ok, State1} = internal_auto_ack(Q, State), - noreply(State1); -handle_cast({tx_publish, Message}, State) -> - {ok, State1} = internal_tx_publish(Message, State), - noreply(State1); -handle_cast({tx_cancel, MsgIds}, State) -> - {ok, State1} = internal_tx_cancel(MsgIds, State), - noreply(State1); -handle_cast({requeue, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_requeue(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({requeue_next_n, Q, N}, State) -> - {ok, State1} = internal_requeue_next_n(Q, N, State), - noreply(State1); -handle_cast({delete_queue, Q}, State) -> - {ok, State1} = internal_delete_queue(Q, State), - noreply(State1); -handle_cast(filesync, State) -> - noreply(sync_current_file_handle(State)); -handle_cast({set_mode, Mode}, State) -> - noreply((case Mode of - disk -> fun to_disk_only_mode/1; - mixed -> fun to_ram_disk_mode/1 - end)(State)); -handle_cast(report_memory, State) -> - %% call noreply1/2, not noreply/1/2, as we don't want to restart the - %% memory_report_timer - %% by unsetting the timer, we force a report on the next normal message - noreply1(State #dqstate { memory_report_timer = undefined }); -handle_cast({prefetch, Q, From}, State) -> - {ok, Result, State1} = internal_deliver(Q, true, true, false, State), - Cont = rabbit_misc:with_exit_handler( - fun () -> false end, - fun () -> - ok = rabbit_queue_prefetcher:publish(From, Result), - true - end), - State3 = - case Cont of - true -> - case internal_deliver(Q, false, false, true, State1) of - {ok, empty, State2} -> State2; - {ok, {_MsgId, _IsPersistent, _Delivered, _MsgSeqId, _Rem}, - State2} -> State2 - end; - false -> State1 - end, - noreply(State3). - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(timeout, State) -> - %% must have commit_timer set, so timeout was 0, and we're not hibernating - noreply(sync_current_file_handle(State)). - -handle_pre_hibernate(State) -> - %% don't use noreply/1 or noreply1/1 as they'll restart the memory timer - ok = report_memory(true, State), - {hibernate, stop_memory_timer(State)}. - -terminate(_Reason, State) -> - shutdown(State). - -shutdown(State = #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - current_file_handle = FileHdl, - read_file_handles = {ReadHdls, _ReadHdlsAge} - }) -> - %% deliberately ignoring return codes here - State1 = stop_commit_timer(stop_memory_timer(State)), - dets:close(MsgLocationDets), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - true = ets:delete_all_objects(MsgLocationEts), - case FileHdl of - undefined -> ok; - _ -> sync_current_file_handle(State), - file:close(FileHdl) - end, - dict:fold(fun (_File, Hdl, _Acc) -> - file:close(Hdl) - end, ok, ReadHdls), - State1 #dqstate { current_file_handle = undefined, - current_dirty = false, - read_file_handles = {dict:new(), gb_trees:empty()}, - memory_report_timer = undefined - }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%% ---- UTILITY FUNCTIONS ---- - -stop_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #dqstate { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { memory_report_timer = undefined }. - -start_memory_timer() -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_disk_queue, report_memory, []), - TRef. - -start_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - ok = report_memory(false, State), - State #dqstate { memory_report_timer = start_memory_timer() }; -start_memory_timer(State) -> - State. - -report_memory(Hibernating, State) -> - Bytes = memory_use(State), - rabbit_queue_mode_manager:report_memory(self(), trunc(2.5 * Bytes), - Hibernating). - -memory_use(#dqstate { operation_mode = ram_disk, - file_summary = FileSummary, - sequences = Sequences, - msg_location_ets = MsgLocationEts, - message_cache = Cache, - wordsize = WordSize - }) -> - WordSize * (mnesia:table_info(rabbit_disk_queue, memory) + - ets:info(MsgLocationEts, memory) + - ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory)); -memory_use(#dqstate { operation_mode = disk_only, - file_summary = FileSummary, - sequences = Sequences, - msg_location_dets = MsgLocationDets, - message_cache = Cache, - wordsize = WordSize, - mnesia_bytes_per_record = MnesiaBytesPerRecord, - ets_bytes_per_record = EtsBytesPerRecord }) -> - MnesiaSizeEstimate = - mnesia:table_info(rabbit_disk_queue, size) * MnesiaBytesPerRecord, - MsgLocationSizeEstimate = - dets:info(MsgLocationDets, size) * EtsBytesPerRecord, - (WordSize * (ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory))) + - rabbit_misc:ceil(MnesiaSizeEstimate) + - rabbit_misc:ceil(MsgLocationSizeEstimate). - -to_disk_only_mode(State = #dqstate { operation_mode = disk_only }) -> - State; -to_disk_only_mode(State = #dqstate { operation_mode = ram_disk, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - wordsize = WordSize }) -> - rabbit_log:info("Converting disk queue to disk only mode~n", []), - MnesiaMemoryBytes = WordSize * mnesia:table_info(rabbit_disk_queue, memory), - MnesiaSize = lists:max([1, mnesia:table_info(rabbit_disk_queue, size)]), - EtsMemoryBytes = WordSize * ets:info(MsgLocationEts, memory), - EtsSize = lists:max([1, ets:info(MsgLocationEts, size)]), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_only_copies), - ok = dets:from_ets(MsgLocationDets, MsgLocationEts), - true = ets:delete_all_objects(MsgLocationEts), - garbage_collect(), - State #dqstate { operation_mode = disk_only, - mnesia_bytes_per_record = MnesiaMemoryBytes / MnesiaSize, - ets_bytes_per_record = EtsMemoryBytes / EtsSize }. - -to_ram_disk_mode(State = #dqstate { operation_mode = ram_disk }) -> - State; -to_ram_disk_mode(State = #dqstate { operation_mode = disk_only, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts }) -> - rabbit_log:info("Converting disk queue to ram disk mode~n", []), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_copies), - true = ets:from_dets(MsgLocationEts, MsgLocationDets), - ok = dets:delete_all_objects(MsgLocationDets), - garbage_collect(), - State #dqstate { operation_mode = ram_disk, - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined }. - -noreply(NewState) -> - noreply1(start_memory_timer(NewState)). - -noreply1(NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {noreply, NewState, hibernate}; -noreply1(NewState = #dqstate { commit_timer_ref = undefined }) -> - {noreply, start_commit_timer(NewState), 0}; -noreply1(NewState = #dqstate { on_sync_txns = [] }) -> - {noreply, stop_commit_timer(NewState), hibernate}; -noreply1(NewState) -> - {noreply, NewState, 0}. - -reply(Reply, NewState) -> - reply1(Reply, start_memory_timer(NewState)). - -reply1(Reply, NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {reply, Reply, NewState, hibernate}; -reply1(Reply, NewState = #dqstate { commit_timer_ref = undefined }) -> - {reply, Reply, start_commit_timer(NewState), 0}; -reply1(Reply, NewState = #dqstate { on_sync_txns = [] }) -> - {reply, Reply, stop_commit_timer(NewState), hibernate}; -reply1(Reply, NewState) -> - {reply, Reply, NewState, 0}. - -form_filename(Name) -> - filename:join(base_directory(), Name). - -base_directory() -> - filename:join(mnesia:system_info(directory), "rabbit_disk_queue/"). - -dets_ets_lookup(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - dets:lookup(MsgLocationDets, Key); -dets_ets_lookup(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - ets:lookup(MsgLocationEts, Key). - -dets_ets_delete(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - ok = dets:delete(MsgLocationDets, Key); -dets_ets_delete(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - true = ets:delete(MsgLocationEts, Key), - ok. - -dets_ets_insert(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - ok = dets:insert(MsgLocationDets, Obj); -dets_ets_insert(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert(MsgLocationEts, Obj), - ok. - -dets_ets_insert_new(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - true = dets:insert_new(MsgLocationDets, Obj); -dets_ets_insert_new(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert_new(MsgLocationEts, Obj). - -dets_ets_match_object(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - dets:match_object(MsgLocationDets, Obj); -dets_ets_match_object(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - ets:match_object(MsgLocationEts, Obj). - -get_read_handle(File, Offset, State = - #dqstate { read_file_handles = {ReadHdls, ReadHdlsAge}, - read_file_handles_limit = ReadFileHandlesLimit, - current_file_name = CurName, - current_dirty = IsDirty, - last_sync_offset = SyncOffset - }) -> - State1 = if CurName =:= File andalso IsDirty andalso Offset >= SyncOffset -> - sync_current_file_handle(State); - true -> State - end, - Now = now(), - {FileHdl, ReadHdls1, ReadHdlsAge1} = - case dict:find(File, ReadHdls) of - error -> - {ok, Hdl} = file:open(form_filename(File), - [read, raw, binary, - read_ahead]), - case dict:size(ReadHdls) < ReadFileHandlesLimit of - true -> - {Hdl, ReadHdls, ReadHdlsAge}; - _False -> - {Then, OldFile, ReadHdlsAge2} = - gb_trees:take_smallest(ReadHdlsAge), - {ok, {OldHdl, Then}} = - dict:find(OldFile, ReadHdls), - ok = file:close(OldHdl), - {Hdl, dict:erase(OldFile, ReadHdls), ReadHdlsAge2} - end; - {ok, {Hdl, Then}} -> - {Hdl, ReadHdls, gb_trees:delete(Then, ReadHdlsAge)} - end, - ReadHdls2 = dict:store(File, {FileHdl, Now}, ReadHdls1), - ReadHdlsAge3 = gb_trees:enter(Now, File, ReadHdlsAge1), - {FileHdl, - State1 #dqstate { read_file_handles = {ReadHdls2, ReadHdlsAge3} }}. - -sequence_lookup(Sequences, Q) -> - case ets:lookup(Sequences, Q) of - [] -> - {0, 0}; - [{Q, ReadSeqId, WriteSeqId}] -> - {ReadSeqId, WriteSeqId} - end. - -start_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, filesync, []), - State #dqstate { commit_timer_ref = TRef }. - -stop_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - State; -stop_commit_timer(State = #dqstate { commit_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { commit_timer_ref = undefined }. - -sync_current_file_handle(State = #dqstate { current_dirty = false, - on_sync_txns = [] }) -> - State; -sync_current_file_handle(State = #dqstate { current_file_handle = CurHdl, - current_dirty = IsDirty, - current_offset = CurOffset, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - SyncOffset1 = case IsDirty of - true -> ok = file:sync(CurHdl), - CurOffset; - false -> SyncOffset - end, - State1 = lists:foldl(fun internal_do_tx_commit/2, State, lists:reverse(Txns)), - State1 #dqstate { current_dirty = false, on_sync_txns = [], - last_sync_offset = SyncOffset1 }. - -msg_to_bin(Msg = #basic_message { content = Content }) -> - ClearedContent = rabbit_binary_parser:clear_decoded_content(Content), - term_to_binary(Msg #basic_message { content = ClearedContent }). - -bin_to_msg(MsgBin) -> - binary_to_term(MsgBin). - -remove_cache_entry(MsgId, #dqstate { message_cache = Cache }) -> - true = ets:delete(Cache, MsgId), - ok. - -fetch_and_increment_cache(MsgId, #dqstate { message_cache = Cache }) -> - case ets:lookup(Cache, MsgId) of - [] -> - not_found; - [{MsgId, Message, MsgSize, _RefCount}] -> - NewRefCount = ets:update_counter(Cache, MsgId, {4, 1}), - {Message, MsgSize, NewRefCount} - end. - -decrement_cache(MsgId, #dqstate { message_cache = Cache }) -> - true = try case ets:update_counter(Cache, MsgId, {4, -1}) of - N when N =< 0 -> true = ets:delete(Cache, MsgId); - _N -> true - end - catch error:badarg -> - %% MsgId is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message in mixed queue) - true - end, - ok. - -insert_into_cache(Message = #basic_message { guid = MsgId }, MsgSize, - Forced, State = #dqstate { message_cache = Cache }) -> - case cache_is_full(State) of - true -> ok; - false -> Count = case Forced of - true -> 0; - false -> 1 - end, - true = ets:insert_new(Cache, {MsgId, Message, - MsgSize, Count}), - ok - end. - -cache_is_full(#dqstate { message_cache = Cache }) -> - ets:info(Cache, memory) > ?CACHE_MAX_SIZE. - -%% ---- INTERNAL RAW FUNCTIONS ---- - -internal_deliver(Q, ReadMsg, FakeDeliver, Advance, - State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, empty, State}; - {ReadSeqId, WriteSeqId} when WriteSeqId >= ReadSeqId -> - Remaining = WriteSeqId - ReadSeqId - 1, - {ok, Result, State1} = - internal_read_message( - Q, ReadSeqId, ReadMsg, FakeDeliver, false, State), - true = case Advance of - true -> ets:insert(Sequences, - {Q, ReadSeqId+1, WriteSeqId}); - false -> true - end, - {ok, - case Result of - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}} -> - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}, - Remaining}; - {Message, BodySize, Delivered, {MsgId, ReadSeqId}} -> - {Message, BodySize, Delivered, {MsgId, ReadSeqId}, - Remaining} - end, State1} - end. - -internal_foldl(Q, Fun, Init, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - internal_foldl(Q, WriteSeqId, Fun, State, Init, ReadSeqId). - -internal_foldl(_Q, SeqId, _Fun, State, Acc, SeqId) -> - {ok, Acc, State}; -internal_foldl(Q, WriteSeqId, Fun, State, Acc, ReadSeqId) -> - {ok, MsgStuff, State1} - = internal_read_message(Q, ReadSeqId, true, true, false, State), - Acc1 = Fun(MsgStuff, Acc), - internal_foldl(Q, WriteSeqId, Fun, State1, Acc1, ReadSeqId + 1). - -internal_read_message(Q, ReadSeqId, ReadMsg, FakeDeliver, ForceInCache, State) -> - [Obj = - #dq_msg_loc {is_delivered = Delivered, msg_id = MsgId}] = - mnesia:dirty_read(rabbit_disk_queue, {Q, ReadSeqId}), - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - ok = - if FakeDeliver orelse Delivered -> ok; - true -> - mnesia:dirty_write(rabbit_disk_queue, - Obj #dq_msg_loc {is_delivered = true}) - end, - case ReadMsg of - true -> - case fetch_and_increment_cache(MsgId, State) of - not_found -> - {FileHdl, State1} = get_read_handle(File, Offset, State), - {ok, {MsgBody, IsPersistent, BodySize}} = - read_message_at_offset(FileHdl, Offset, TotalSize), - #basic_message { is_persistent=IsPersistent, guid=MsgId } = - Message = bin_to_msg(MsgBody), - ok = if RefCount > 1 orelse ForceInCache -> - insert_into_cache - (Message, BodySize, ForceInCache, State1); - true -> ok - %% it's not in the cache and we only - %% have 1 queue with the message. So - %% don't bother putting it in the - %% cache. - end, - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State1}; - {Message, BodySize, _RefCount} -> - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State} - end; - false -> - {ok, {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}}, State} - end. - -internal_auto_ack(Q, State) -> - case internal_deliver(Q, false, false, true, State) of - {ok, empty, State1} -> {ok, State1}; - {ok, {_MsgId, _IsPersistent, _Delivered, MsgSeqId, _Remaining}, - State1} -> - remove_messages(Q, [MsgSeqId], true, State1) - end. - -internal_ack(Q, MsgSeqIds, State) -> - remove_messages(Q, MsgSeqIds, true, State). - -%% Q is only needed if MnesiaDelete /= false -remove_messages(Q, MsgSeqIds, MnesiaDelete, - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - Files = - lists:foldl( - fun ({MsgId, SeqId}, Files1) -> - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - Files2 = - case RefCount of - 1 -> - ok = dets_ets_delete(State, MsgId), - ok = remove_cache_entry(MsgId, State), - [{File, ValidTotalSize, ContiguousTop, - Left, Right}] = ets:lookup(FileSummary, File), - ContiguousTop1 = - lists:min([ContiguousTop, Offset]), - true = - ets:insert(FileSummary, - {File, (ValidTotalSize-TotalSize- - ?FILE_PACKING_ADJUSTMENT), - ContiguousTop1, Left, Right}), - if CurName =:= File -> Files1; - true -> sets:add_element(File, Files1) - end; - _ when 1 < RefCount -> - ok = decrement_cache(MsgId, State), - ok = dets_ets_insert( - State, {MsgId, RefCount - 1, File, Offset, - TotalSize, IsPersistent}), - Files1 - end, - ok = case MnesiaDelete of - true -> mnesia:dirty_delete(rabbit_disk_queue, - {Q, SeqId}); - txn -> mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write); - _ -> ok - end, - Files2 - end, sets:new(), MsgSeqIds), - State1 = compact(Files, State), - {ok, State1}. - -internal_tx_publish(Message = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, - State = #dqstate { current_file_handle = CurHdl, - current_file_name = CurName, - current_offset = CurOffset, - file_summary = FileSummary - }) -> - case dets_ets_lookup(State, MsgId) of - [] -> - %% New message, lots to do - {ok, TotalSize} = append_message(CurHdl, MsgId, msg_to_bin(Message), - IsPersistent), - true = dets_ets_insert_new - (State, {MsgId, 1, CurName, - CurOffset, TotalSize, IsPersistent}), - [{CurName, ValidTotalSize, ContiguousTop, Left, undefined}] = - ets:lookup(FileSummary, CurName), - ValidTotalSize1 = ValidTotalSize + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - ContiguousTop1 = if CurOffset =:= ContiguousTop -> - %% can't be any holes in this file - ValidTotalSize1; - true -> ContiguousTop - end, - true = ets:insert(FileSummary, {CurName, ValidTotalSize1, - ContiguousTop1, Left, undefined}), - NextOffset = CurOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - maybe_roll_to_new_file( - NextOffset, State #dqstate {current_offset = NextOffset, - current_dirty = true}); - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] -> - %% We already know about it, just update counter - ok = dets_ets_insert(State, {MsgId, RefCount + 1, File, - Offset, TotalSize, IsPersistent}), - {ok, State} - end. - -internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, - State = #dqstate { current_file_name = CurFile, - current_dirty = IsDirty, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - NeedsSync = IsDirty andalso - lists:any(fun ({MsgId, _Delivered}) -> - [{MsgId, _RefCount, File, Offset, - _TotalSize, _IsPersistent}] = - dets_ets_lookup(State, MsgId), - File =:= CurFile andalso Offset >= SyncOffset - end, PubMsgIds), - TxnDetails = {Q, PubMsgIds, AckSeqIds, From}, - case NeedsSync of - true -> - Txns1 = [TxnDetails | Txns], - State #dqstate { on_sync_txns = Txns1 }; - false -> - internal_do_tx_commit(TxnDetails, State) - end. - -internal_do_tx_commit({Q, PubMsgIds, AckSeqIds, From}, - State = #dqstate { sequences = Sequences }) -> - {InitReadSeqId, InitWriteSeqId} = sequence_lookup(Sequences, Q), - WriteSeqId = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {ok, WriteSeqId1} = - lists:foldl( - fun ({MsgId, Delivered}, {ok, SeqId}) -> - {mnesia:write( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, - msg_id = MsgId, - is_delivered = Delivered - }, write), - SeqId + 1} - end, {ok, InitWriteSeqId}, PubMsgIds), - WriteSeqId1 - end), - {ok, State1} = remove_messages(Q, AckSeqIds, true, State), - true = case PubMsgIds of - [] -> true; - _ -> ets:insert(Sequences, {Q, InitReadSeqId, WriteSeqId}) - end, - gen_server2:reply(From, ok), - State1. - -internal_publish(Q, Message = #basic_message { guid = MsgId }, - IsDelivered, State) -> - {ok, State1 = #dqstate { sequences = Sequences }} = - internal_tx_publish(Message, State), - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - ok = mnesia:dirty_write(rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, WriteSeqId}, - msg_id = MsgId, - is_delivered = IsDelivered}), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId + 1}), - {ok, {MsgId, WriteSeqId}, State1}. - -internal_tx_cancel(MsgIds, State) -> - %% we don't need seq ids because we're not touching mnesia, - %% because seqids were never assigned - MsgSeqIds = lists:zip(MsgIds, lists:duplicate(erlang:length(MsgIds), - undefined)), - remove_messages(undefined, MsgSeqIds, false, State). - -internal_requeue(_Q, [], State) -> - {ok, State}; -internal_requeue(Q, MsgSeqIds, State = #dqstate { sequences = Sequences }) -> - %% We know that every seq_id in here is less than the ReadSeqId - %% you'll get if you look up this queue in Sequences (i.e. they've - %% already been delivered). We also know that the rows for these - %% messages are still in rabbit_disk_queue (i.e. they've not been - %% ack'd). - - %% Now, it would be nice if we could adjust the sequence ids in - %% rabbit_disk_queue (mnesia) to create a contiguous block and - %% then drop the ReadSeqId for the queue by the corresponding - %% amount. However, this is not safe because there may be other - %% sequence ids which have been sent out as part of deliveries - %% which are not being requeued. As such, moving things about in - %% rabbit_disk_queue _under_ the current ReadSeqId would result in - %% such sequence ids referring to the wrong messages. - - %% Therefore, the only solution is to take these messages, and to - %% reenqueue them at the top of the queue. Usefully, this only - %% affects the Sequences and rabbit_disk_queue structures - there - %% is no need to physically move the messages about on disk, so - %% MsgLocation and FileSummary stay put (which makes further sense - %% as they have no concept of sequence id anyway). - - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - {WriteSeqId1, Q, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foldl(fun requeue_message/2, {WriteSeqId, Q, []}, - MsgSeqIds) - end), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId1}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State}. - -requeue_message({{MsgId, SeqId}, IsDelivered}, {WriteSeqId, Q, Acc}) -> - [Obj = #dq_msg_loc { is_delivered = true, msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, SeqId}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeqId}, - is_delivered = IsDelivered - }, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write), - {WriteSeqId + 1, Q, [MsgId | Acc]}. - -%% move the next N messages from the front of the queue to the back. -internal_requeue_next_n(Q, N, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - if N >= (WriteSeqId - ReadSeqId) -> {ok, State}; - true -> - {ReadSeqIdN, WriteSeqIdN, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - requeue_next_messages(Q, N, ReadSeqId, WriteSeqId, []) - end - ), - true = ets:insert(Sequences, {Q, ReadSeqIdN, WriteSeqIdN}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State} - end. - -requeue_next_messages(_Q, 0, ReadSeq, WriteSeq, Acc) -> - {ReadSeq, WriteSeq, Acc}; -requeue_next_messages(Q, N, ReadSeq, WriteSeq, Acc) -> - [Obj = #dq_msg_loc { msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, ReadSeq}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeq}}, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, ReadSeq}, write), - requeue_next_messages(Q, N - 1, ReadSeq + 1, WriteSeq + 1, [MsgId | Acc]). - -internal_purge(Q, State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, 0, State}; - {ReadSeqId, WriteSeqId} -> - {MsgSeqIds, WriteSeqId} = - rabbit_misc:unfold( - fun (SeqId) when SeqId == WriteSeqId -> false; - (SeqId) -> - [#dq_msg_loc { msg_id = MsgId }] = - mnesia:dirty_read(rabbit_disk_queue, {Q, SeqId}), - {true, {MsgId, SeqId}, SeqId + 1} - end, ReadSeqId), - true = ets:insert(Sequences, {Q, WriteSeqId, WriteSeqId}), - {ok, State1} = remove_messages(Q, MsgSeqIds, true, State), - {ok, WriteSeqId - ReadSeqId, State1} - end. - -internal_delete_queue(Q, State) -> - {ok, _Count, State1 = #dqstate { sequences = Sequences }} = - internal_purge(Q, State), %% remove everything undelivered - true = ets:delete(Sequences, Q), - %% now remove everything already delivered - Objs = mnesia:dirty_match_object( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, '_'}, - msg_id = '_', - is_delivered = '_' - }), - MsgSeqIds = - lists:map( - fun (#dq_msg_loc { queue_and_seq_id = {_Q, SeqId}, - msg_id = MsgId }) -> - {MsgId, SeqId} end, Objs), - remove_messages(Q, MsgSeqIds, true, State1). - -internal_delete_non_durable_queues( - DurableQueues, State = #dqstate { sequences = Sequences }) -> - ets:foldl( - fun ({Q, _Read, _Write}, {ok, State1}) -> - case sets:is_element(Q, DurableQueues) of - true -> {ok, State1}; - false -> internal_delete_queue(Q, State1) - end - end, {ok, State}, Sequences). - -%% ---- ROLLING OVER THE APPEND FILE ---- - -maybe_roll_to_new_file(Offset, - State = #dqstate { file_size_limit = FileSizeLimit, - current_file_name = CurName, - current_file_handle = CurHdl, - current_file_num = CurNum, - file_summary = FileSummary - } - ) when Offset >= FileSizeLimit -> - State1 = sync_current_file_handle(State), - ok = file:close(CurHdl), - NextNum = CurNum + 1, - NextName = integer_to_list(NextNum) ++ ?FILE_EXTENSION, - {ok, NextHdl} = file:open(form_filename(NextName), - [write, raw, binary, delayed_write]), - ok = preallocate(NextHdl, FileSizeLimit, 0), - true = ets:update_element(FileSummary, CurName, {5, NextName}),%% 5 is Right - true = ets:insert_new(FileSummary, {NextName, 0, 0, CurName, undefined}), - State2 = State1 #dqstate { current_file_name = NextName, - current_file_handle = NextHdl, - current_file_num = NextNum, - current_offset = 0, - last_sync_offset = 0 - }, - {ok, compact(sets:from_list([CurName]), State2)}; -maybe_roll_to_new_file(_, State) -> - {ok, State}. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file:position(Hdl, {bof, FileSizeLimit}), - ok = file:truncate(Hdl), - {ok, FinalPos} = file:position(Hdl, {bof, FinalPos}), - ok. - -%% ---- GARBAGE COLLECTION / COMPACTION / AGGREGATION ---- - -compact(FilesSet, State) -> - %% smallest number, hence eldest, hence left-most, first - Files = lists:sort(sets:to_list(FilesSet)), - %% foldl reverses, so now youngest/right-most first - RemainingFiles = lists:foldl(fun (File, Acc) -> - delete_empty_files(File, Acc, State) - end, [], Files), - lists:foldl(fun combine_file/2, State, lists:reverse(RemainingFiles)). - -combine_file(File, State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - %% the file we're looking at may no longer exist as it may have - %% been deleted within the current GC run - case ets:lookup(FileSummary, File) of - [] -> State; - [FileObj = {File, _ValidData, _ContiguousTop, Left, Right}] -> - GoRight = - fun() -> - case Right of - undefined -> State; - _ when not (CurName == Right) -> - [RightObj] = ets:lookup(FileSummary, Right), - {_, State1} = - adjust_meta_and_combine(FileObj, RightObj, - State), - State1; - _ -> State - end - end, - case Left of - undefined -> - GoRight(); - _ -> [LeftObj] = ets:lookup(FileSummary, Left), - case adjust_meta_and_combine(LeftObj, FileObj, State) of - {true, State1} -> State1; - {false, State} -> GoRight() - end - end - end. - -adjust_meta_and_combine( - LeftObj = {LeftFile, LeftValidData, _LeftContigTop, LeftLeft, RightFile}, - RightObj = {RightFile, RightValidData, _RightContigTop, LeftFile, RightRight}, - State = #dqstate { file_size_limit = FileSizeLimit, - file_summary = FileSummary - }) -> - TotalValidData = LeftValidData + RightValidData, - if FileSizeLimit >= TotalValidData -> - State1 = combine_files(RightObj, LeftObj, State), - %% this could fail if RightRight is undefined - %% left is the 4th field - ets:update_element(FileSummary, RightRight, {4, LeftFile}), - true = ets:insert(FileSummary, {LeftFile, - TotalValidData, TotalValidData, - LeftLeft, - RightRight}), - true = ets:delete(FileSummary, RightFile), - {true, State1}; - true -> {false, State} - end. - -sort_msg_locations_by_offset(Asc, List) -> - Comp = case Asc of - true -> fun erlang:'<'/2; - false -> fun erlang:'>'/2 - end, - lists:sort(fun ({_, _, _, OffA, _, _}, {_, _, _, OffB, _, _}) -> - Comp(OffA, OffB) - end, List). - -truncate_and_extend_file(FileHdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file:position(FileHdl, {bof, Lowpoint}), - ok = file:truncate(FileHdl), - ok = preallocate(FileHdl, Highpoint, Lowpoint). - -combine_files({Source, SourceValid, _SourceContiguousTop, - _SourceLeft, _SourceRight}, - {Destination, DestinationValid, DestinationContiguousTop, - _DestinationLeft, _DestinationRight}, - State1) -> - State = close_file(Source, close_file(Destination, State1)), - {ok, SourceHdl} = - file:open(form_filename(Source), - [read, write, raw, binary, read_ahead, delayed_write]), - {ok, DestinationHdl} = - file:open(form_filename(Destination), - [read, write, raw, binary, read_ahead, delayed_write]), - ExpectedSize = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - if DestinationContiguousTop =:= DestinationValid -> - ok = truncate_and_extend_file(DestinationHdl, - DestinationValid, ExpectedSize); - true -> - Tmp = filename:rootname(Destination) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = - file:open(form_filename(Tmp), - [read, write, raw, binary, - read_ahead, delayed_write]), - Worklist = - lists:dropwhile( - fun ({_, _, _, Offset, _, _}) - when Offset /= DestinationContiguousTop -> - %% it cannot be that Offset == - %% DestinationContiguousTop because if it - %% was then DestinationContiguousTop would - %% have been extended by TotalSize - Offset < DestinationContiguousTop - %% Given expected access patterns, I suspect - %% that the list should be naturally sorted - %% as we require, however, we need to - %% enforce it anyway - end, sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Destination, - '_', '_', '_'}))), - ok = copy_messages( - Worklist, DestinationContiguousTop, DestinationValid, - DestinationHdl, TmpHdl, Destination, State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage from - %% Destination, and MsgLocationDets has been updated to - %% reflect compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file:position(TmpHdl, {bof, 0}), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, ExpectedSize), - {ok, TmpSize} = file:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file:sync(DestinationHdl), - ok = file:close(TmpHdl), - ok = file:delete(form_filename(Tmp)) - end, - SourceWorkList = - sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Source, - '_', '_', '_'})), - ok = copy_messages(SourceWorkList, DestinationValid, ExpectedSize, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file:sync(DestinationHdl), - ok = file:close(SourceHdl), - ok = file:close(DestinationHdl), - ok = file:delete(form_filename(Source)), - State. - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, State) -> - {FinalOffset, BlockStart1, BlockEnd1} = - lists:foldl( - fun ({MsgId, RefCount, _Source, Offset, TotalSize, IsPersistent}, - {CurOffset, BlockStart, BlockEnd}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - Size = TotalSize + ?FILE_PACKING_ADJUSTMENT, - %% update MsgLocationDets to reflect change of file and offset - ok = dets_ets_insert - (State, {MsgId, RefCount, Destination, - CurOffset, TotalSize, IsPersistent}), - NextOffset = CurOffset + Size, - if BlockStart =:= undefined -> - %% base case, called only for the first list elem - {NextOffset, Offset, Offset + Size}; - Offset =:= BlockEnd -> - %% extend the current block because the next - %% msg follows straight on - {NextOffset, BlockStart, BlockEnd + Size}; - true -> - %% found a gap, so actually do the work for - %% the previous block - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file:position(SourceHdl, {bof, BlockStart}), - {ok, BSize} = - file:copy(SourceHdl, DestinationHdl, BSize), - {NextOffset, Offset, Offset + Size} - end - end, {InitOffset, undefined, undefined}, WorkList), - %% do the last remaining block - BSize1 = BlockEnd1 - BlockStart1, - {ok, BlockStart1} = file:position(SourceHdl, {bof, BlockStart1}), - {ok, BSize1} = file:copy(SourceHdl, DestinationHdl, BSize1), - ok. - -close_file(File, State = #dqstate { read_file_handles = - {ReadHdls, ReadHdlsAge} }) -> - case dict:find(File, ReadHdls) of - error -> - State; - {ok, {Hdl, Then}} -> - ok = file:close(Hdl), - State #dqstate { read_file_handles = - { dict:erase(File, ReadHdls), - gb_trees:delete(Then, ReadHdlsAge) } } - end. - -delete_empty_files(File, Acc, #dqstate { file_summary = FileSummary }) -> - [{File, ValidData, _ContiguousTop, Left, Right}] = - ets:lookup(FileSummary, File), - case ValidData of - %% we should NEVER find the current file in here hence right - %% should always be a file, not undefined - 0 -> - case {Left, Right} of - {undefined, _} when not (is_atom(Right)) -> - %% the eldest file is empty. YAY! - %% left is the 4th field - true = - ets:update_element(FileSummary, Right, {4, undefined}); - {_, _} when not (is_atom(Right)) -> - %% left is the 4th field - true = ets:update_element(FileSummary, Right, {4, Left}), - %% right is the 5th field - true = ets:update_element(FileSummary, Left, {5, Right}) - end, - true = ets:delete(FileSummary, File), - ok = file:delete(form_filename(File)), - Acc; - _ -> [File|Acc] - end. - -%% ---- DISK RECOVERY ---- - -add_index() -> - case mnesia:add_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - {aborted,{already_exists,rabbit_disk_queue,_}} -> ok; - E -> E - end. - -del_index() -> - case mnesia:del_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - %% hmm, something weird must be going on, but it's probably - %% not the end of the world - {aborted, {no_exists, rabbit_disk_queue,_}} -> ok; - E1 -> E1 - end. - -load_from_disk(State) -> - %% sorted so that smallest number is first. which also means - %% eldest file (left-most) first - ok = add_index(), - {Files, TmpFiles} = get_disk_queue_files(), - ok = recover_crashed_compactions(Files, TmpFiles), - %% There should be no more tmp files now, so go ahead and load the - %% whole lot - State1 = load_messages(undefined, Files, State), - %% Finally, check there is nothing in mnesia which we haven't - %% loaded - State2 = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {State6, FinalQ, MsgSeqIds2, _Len} = - mnesia:foldl( - fun (#dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = {Q, SeqId} }, - {State3, OldQ, MsgSeqIds, Len}) -> - {State4, MsgSeqIds1, Len1} = - case {OldQ == Q, MsgSeqIds} of - {true, _} when Len < ?BATCH_SIZE -> - {State3, MsgSeqIds, Len}; - {false, []} -> {State3, MsgSeqIds, Len}; - {_, _} -> - {ok, State5} = - remove_messages(Q, MsgSeqIds, - txn, State3), - {State5, [], 0} - end, - case dets_ets_lookup(State4, MsgId) of - [] -> ok = mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write), - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, true}] -> - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, false}] -> - {State4, Q, - [{MsgId, SeqId} | MsgSeqIds1], Len1+1} - end - end, {State1, undefined, [], 0}, rabbit_disk_queue), - {ok, State7} = - remove_messages(FinalQ, MsgSeqIds2, txn, State6), - State7 - end), - State8 = extract_sequence_numbers(State2), - ok = del_index(), - {ok, State8}. - -extract_sequence_numbers(State = #dqstate { sequences = Sequences }) -> - true = rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:read_lock_table(rabbit_disk_queue), - mnesia:foldl( - fun (#dq_msg_loc { queue_and_seq_id = {Q, SeqId} }, true) -> - NextWrite = SeqId + 1, - case ets:lookup(Sequences, Q) of - [] -> ets:insert_new(Sequences, - {Q, SeqId, NextWrite}); - [Orig = {Q, Read, Write}] -> - Repl = {Q, lists:min([Read, SeqId]), - lists:max([Write, NextWrite])}, - case Orig == Repl of - true -> true; - false -> ets:insert(Sequences, Repl) - end - end - end, true, rabbit_disk_queue) - end), - ok = remove_gaps_in_sequences(State), - State. - -remove_gaps_in_sequences(#dqstate { sequences = Sequences }) -> - %% read the comments at internal_requeue. - - %% Because we are at startup, we know that no sequence ids have - %% been issued (or at least, they were, but have been - %% forgotten). Therefore, we can nicely shuffle up and not - %% worry. Note that I'm choosing to shuffle up, but alternatively - %% we could shuffle downwards. However, I think there's greater - %% likelihood of gaps being at the bottom rather than the top of - %% the queue, so shuffling up should be the better bet. - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foreach( - fun ({Q, ReadSeqId, WriteSeqId}) -> - Gap = shuffle_up(Q, ReadSeqId-1, WriteSeqId-1, 0), - ReadSeqId1 = ReadSeqId + Gap, - true = ets:insert(Sequences, - {Q, ReadSeqId1, WriteSeqId}) - end, ets:match_object(Sequences, '_')) - end), - ok. - -shuffle_up(_Q, SeqId, SeqId, Gap) -> - Gap; -shuffle_up(Q, BaseSeqId, SeqId, Gap) -> - GapInc = - case mnesia:read(rabbit_disk_queue, {Q, SeqId}, write) of - [] -> 1; - [Obj] -> - case Gap of - 0 -> ok; - _ -> mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc { - queue_and_seq_id = {Q, SeqId + Gap }}, - write), - mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write) - end, - 0 - end, - shuffle_up(Q, BaseSeqId, SeqId - 1, Gap + GapInc). - -load_messages(undefined, [], - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName }) -> - true = ets:insert_new(FileSummary, {CurName, 0, 0, undefined, undefined}), - State; -load_messages(Left, [], State) -> - Num = list_to_integer(filename:rootname(Left)), - Offset = - case dets_ets_match_object(State, {'_', '_', Left, '_', '_', '_'}) of - [] -> 0; - L -> - [ {_MsgId, _RefCount, Left, MaxOffset, TotalSize, _IsPersistent} - | _ ] = sort_msg_locations_by_offset(false, L), - MaxOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT - end, - State #dqstate { current_file_num = Num, current_file_name = Left, - current_offset = Offset }; -load_messages(Left, [File|Files], - State = #dqstate { file_summary = FileSummary }) -> - %% [{MsgId, TotalSize, FileOffset}] - {ok, Messages} = scan_file_for_valid_messages(form_filename(File)), - {ValidMessagesRev, ValidTotalSize} = lists:foldl( - fun (Obj = {MsgId, IsPersistent, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) of - 0 -> {VMAcc, VTSAcc}; - RefCount -> - true = dets_ets_insert_new - (State, {MsgId, RefCount, File, - Offset, TotalSize, IsPersistent}), - {[Obj | VMAcc], - VTSAcc + TotalSize + ?FILE_PACKING_ADJUSTMENT - } - end - end, {[], 0}, Messages), - %% foldl reverses lists and find_contiguous_block_prefix needs - %% elems in the same order as from scan_file_for_valid_messages - {ContiguousTop, _} = find_contiguous_block_prefix( - lists:reverse(ValidMessagesRev)), - Right = case Files of - [] -> undefined; - [F|_] -> F - end, - true = ets:insert_new(FileSummary, - {File, ValidTotalSize, ContiguousTop, Left, Right}), - load_messages(File, Files, State). - -%% ---- DISK RECOVERY OF FAILED COMPACTION ---- - -recover_crashed_compactions(Files, TmpFiles) -> - lists:foreach(fun (TmpFile) -> - ok = recover_crashed_compactions1(Files, TmpFile) end, - TmpFiles), - ok. - -verify_messages_in_mnesia(MsgIds) -> - lists:foreach( - fun (MsgId) -> - true = 0 < erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) - end, MsgIds). - -grab_msg_id({MsgId, _IsPersistent, _TotalSize, _FileOffset}) -> - MsgId. - -recover_crashed_compactions1(Files, TmpFile) -> - NonTmpRelatedFile = filename:rootname(TmpFile) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFile, Files), - %% [{MsgId, TotalSize, FileOffset}] - {ok, UncorruptedMessagesTmp} = - scan_file_for_valid_messages(form_filename(TmpFile)), - MsgIdsTmp = lists:map(fun grab_msg_id/1, UncorruptedMessagesTmp), - %% all of these messages should appear in the mnesia table, - %% otherwise they wouldn't have been copied out - verify_messages_in_mnesia(MsgIdsTmp), - {ok, UncorruptedMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIds = lists:map(fun grab_msg_id/1, UncorruptedMessages), - %% 1) It's possible that everything in the tmp file is also in the - %% main file such that the main file is (prefix ++ - %% tmpfile). This means that compaction failed immediately - %% prior to the final step of deleting the tmp file. Plan: just - %% delete the tmp file - %% 2) It's possible that everything in the tmp file is also in the - %% main file but with holes throughout (or just somthing like - %% main = (prefix ++ hole ++ tmpfile)). This means that - %% compaction wrote out the tmp file successfully and then - %% failed. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 3) It's possible that everything in the tmp file is also in the - %% main file but such that the main file does not end with tmp - %% file (and there are valid messages in the suffix; main = - %% (prefix ++ tmpfile[with extra holes?] ++ suffix)). This - %% means that compaction failed as we were writing out the tmp - %% file. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 4) It's possible that there are messages in the tmp file which - %% are not in the main file. This means that writing out the - %% tmp file succeeded, but then we failed as we were copying - %% them back over to the main file, after truncating the main - %% file. As the main file has already been truncated, it should - %% consist only of valid messages. Plan: Truncate the main file - %% back to before any of the files in the tmp file and copy - %% them over again - case lists:all(fun (MsgId) -> lists:member(MsgId, MsgIds) end, MsgIdsTmp) of - true -> %% we're in case 1, 2 or 3 above. Just delete the tmp file - %% note this also catches the case when the tmp file - %% is empty - ok = file:delete(TmpFile); - _False -> - %% we're in case 4 above. Check that everything in the - %% main file is a valid message in mnesia - verify_messages_in_mnesia(MsgIds), - %% The main file should be contiguous - {Top, MsgIds} = find_contiguous_block_prefix(UncorruptedMessages), - %% we should have that none of the messages in the prefix - %% are in the tmp file - true = lists:all(fun (MsgId) -> - not (lists:member(MsgId, MsgIdsTmp)) - end, MsgIds), - {ok, MainHdl} = file:open(form_filename(NonTmpRelatedFile), - [write, raw, binary, delayed_write]), - {ok, Top} = file:position(MainHdl, Top), - %% wipe out any rubbish at the end of the file - ok = file:truncate(MainHdl), - %% there really could be rubbish at the end of the file - - %% we could have failed after the extending truncate. - %% Remember the head of the list will be the highest entry - %% in the file - [{_, _, TmpTopTotalSize, TmpTopOffset}|_] = UncorruptedMessagesTmp, - TmpSize = TmpTopOffset + TmpTopTotalSize + ?FILE_PACKING_ADJUSTMENT, - ExpectedAbsPos = Top + TmpSize, - {ok, ExpectedAbsPos} = file:position(MainHdl, {cur, TmpSize}), - %% and now extend the main file as big as necessary in a - %% single move if we run out of disk space, this truncate - %% could fail, but we still aren't risking losing data - ok = file:truncate(MainHdl), - {ok, TmpHdl} = file:open(form_filename(TmpFile), - [read, raw, binary, read_ahead]), - {ok, TmpSize} = file:copy(TmpHdl, MainHdl, TmpSize), - ok = file:close(MainHdl), - ok = file:close(TmpHdl), - ok = file:delete(TmpFile), - - {ok, MainMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIdsMain = lists:map(fun grab_msg_id/1, MainMessages), - %% check that everything in MsgIds is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIds), - %% check that everything in MsgIdsTmp is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIdsTmp) - end, - ok. - -%% this assumes that the messages are ordered such that the highest -%% address is at the head of the list. This matches what -%% scan_file_for_valid_messages produces -find_contiguous_block_prefix([]) -> {0, []}; -find_contiguous_block_prefix([ {MsgId, _IsPersistent, TotalSize, Offset} - | Tail]) -> - case find_contiguous_block_prefix(Tail, Offset, [MsgId]) of - {ok, Acc} -> {Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - lists:reverse(Acc)}; - Res -> Res - end. -find_contiguous_block_prefix([], 0, Acc) -> - {ok, Acc}; -find_contiguous_block_prefix([], _N, _Acc) -> - {0, []}; -find_contiguous_block_prefix([{MsgId, _IsPersistent, TotalSize, Offset} | Tail], - ExpectedOffset, Acc) - when ExpectedOffset =:= Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT -> - find_contiguous_block_prefix(Tail, Offset, [MsgId|Acc]); -find_contiguous_block_prefix(List, _ExpectedOffset, _Acc) -> - find_contiguous_block_prefix(List). - -file_name_sort(A, B) -> - ANum = list_to_integer(filename:rootname(A)), - BNum = list_to_integer(filename:rootname(B)), - ANum < BNum. - -get_disk_queue_files() -> - DQFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION, base_directory()), - DQFilesSorted = lists:sort(fun file_name_sort/2, DQFiles), - DQTFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION_TMP, base_directory()), - DQTFilesSorted = lists:sort(fun file_name_sort/2, DQTFiles), - {DQFilesSorted, DQTFilesSorted}. - -%% ---- RAW READING AND WRITING OF FILES ---- - -append_message(FileHdl, MsgId, MsgBody, IsPersistent) when is_binary(MsgBody) -> - BodySize = size(MsgBody), - MsgIdBin = term_to_binary(MsgId), - MsgIdBinSize = size(MsgIdBin), - TotalSize = BodySize + MsgIdBinSize, - StopByte = case IsPersistent of - true -> ?WRITE_OK_PERSISTENT; - false -> ?WRITE_OK_TRANSIENT - end, - case file:write(FileHdl, <>) of - ok -> {ok, TotalSize}; - KO -> KO - end. - -read_message_at_offset(FileHdl, Offset, TotalSize) -> - TotalSizeWriteOkBytes = TotalSize + 1, - case file:position(FileHdl, {bof, Offset}) of - {ok, Offset} -> - case file:read(FileHdl, TotalSize + ?FILE_PACKING_ADJUSTMENT) of - {ok, <>} -> - BodySize = TotalSize - MsgIdBinSize, - case Rest of - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_TRANSIENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, false, BodySize}}; - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_PERSISTENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, true, BodySize}} - end; - KO -> KO - end; - KO -> KO - end. - -scan_file_for_valid_messages(File) -> - {ok, Hdl} = file:open(File, [raw, binary, read]), - Valid = scan_file_for_valid_messages(Hdl, 0, []), - %% if something really bad's happened, the close could fail, but ignore - file:close(Hdl), - Valid. - -scan_file_for_valid_messages(FileHdl, Offset, Acc) -> - case read_next_file_entry(FileHdl, Offset) of - {ok, eof} -> {ok, Acc}; - {ok, {corrupted, NextOffset}} -> - scan_file_for_valid_messages(FileHdl, NextOffset, Acc); - {ok, {ok, MsgId, IsPersistent, TotalSize, NextOffset}} -> - scan_file_for_valid_messages( - FileHdl, NextOffset, - [{MsgId, IsPersistent, TotalSize, Offset} | Acc]); - _KO -> - %% bad message, but we may still have recovered some valid messages - {ok, Acc} - end. - -read_next_file_entry(FileHdl, Offset) -> - TwoIntegers = 2 * ?INTEGER_SIZE_BYTES, - case file:read(FileHdl, TwoIntegers) of - {ok, - <>} -> - case {TotalSize =:= 0, MsgIdBinSize =:= 0} of - {true, _} -> {ok, eof}; %% Nothing we can do other than stop - {false, true} -> - %% current message corrupted, try skipping past it - ExpectedAbsPos = - Offset + ?FILE_PACKING_ADJUSTMENT + TotalSize, - case file:position(FileHdl, {cur, TotalSize + 1}) of - {ok, ExpectedAbsPos} -> - {ok, {corrupted, ExpectedAbsPos}}; - {ok, _SomeOtherPos} -> - {ok, eof}; %% seek failed, so give up - KO -> KO - end; - {false, false} -> %% all good, let's continue - case file:read(FileHdl, MsgIdBinSize) of - {ok, <>} -> - ExpectedAbsPos = Offset + TwoIntegers + TotalSize, - case file:position(FileHdl, - {cur, TotalSize - MsgIdBinSize} - ) of - {ok, ExpectedAbsPos} -> - NextOffset = Offset + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - case file:read(FileHdl, 1) of - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - false, TotalSize, NextOffset}}; - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - true, TotalSize, NextOffset}}; - {ok, _SomeOtherData} -> - {ok, {corrupted, NextOffset}}; - KO -> KO - end; - {ok, _SomeOtherPos} -> - %% seek failed, so give up - {ok, eof}; - KO -> KO - end; - eof -> {ok, eof}; - KO -> KO - end - end; - eof -> {ok, eof}; - KO -> KO - end. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl index 3aa2989a..2be00503 100644 --- a/src/rabbit_guid.erl +++ b/src/rabbit_guid.erl @@ -42,7 +42,6 @@ terminate/2, code_change/3]). -define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_guid"). -record(state, {serial}). @@ -60,24 +59,17 @@ %%---------------------------------------------------------------------------- start_link() -> + %% The persister can get heavily loaded, and we don't want that to + %% impact guid generation. We therefore keep the serial in a + %% separate process rather than calling rabbit_persister:serial/0 + %% directly in the functions below. gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(mnesia:system_info(directory), ?SERIAL_FILENAME), - Serial = case file:read_file(Filename) of - {ok, Content} -> - binary_to_term(Content); - {error, _} -> - 0 - end, - ok = file:write_file(Filename, term_to_binary(Serial + 1)), - Serial. + [rabbit_persister:serial()], []). %% generate a guid that is monotonically increasing per process. %% %% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. +%% persistent message store hasn't been deleted. guid() -> %% We don't use erlang:now() here because a) it may return %% duplicates when the system clock has been rewound prior to a @@ -85,7 +77,7 @@ guid() -> %% now() to move ahead of the system time), and b) it is really %% slow since it takes a global lock and makes a system call. %% - %% A persisted serial number, in combination with self/0 (which + %% rabbit_persister:serial/0, in combination with self/0 (which %% includes the node name) uniquely identifies a process in space %% and time. We combine that with a process-local counter to give %% us a GUID that is monotonically increasing per process. diff --git a/src/rabbit_memsup.erl b/src/rabbit_memsup.erl deleted file mode 100644 index 5f242881..00000000 --- a/src/rabbit_memsup.erl +++ /dev/null @@ -1,126 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0]). - --record(state, {memory_fraction, - timeout, - timer, - mod, - mod_state - }). - --define(SERVER, memsup). %% must be the same as the standard memsup - --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (atom()) -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(update/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -update() -> - gen_server:cast(?SERVER, update). - -%%---------------------------------------------------------------------------- - -init([Mod]) -> - Fraction = os_mon:get_env(memsup, system_memory_high_watermark), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - InitState = Mod:init(), - State = #state { memory_fraction = Fraction, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - mod = Mod, - mod_state = Mod:update(Fraction, InitState) }, - {ok, State}. - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% Export the same API as the real memsup. Note that -%% get_sysmem_high_watermark gives an int in the range 0 - 100, while -%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. -handle_call(get_sysmem_high_watermark, _From, State) -> - {reply, trunc(100 * State#state.memory_fraction), State}; - -handle_call({set_sysmem_high_watermark, Float}, _From, State) -> - {reply, ok, State#state{memory_fraction = Float}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_data, _From, - State = #state { mod = Mod, mod_state = ModState }) -> - {reply, Mod:get_memory_data(ModState), State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State = #state { memory_fraction = MemoryFraction, - mod = Mod, mod_state = ModState }) -> - ModState1 = Mod:update(MemoryFraction, ModState), - {noreply, State #state { mod_state = ModState1 }}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_memsup_darwin.erl b/src/rabbit_memsup_darwin.erl deleted file mode 100644 index 990c5b99..00000000 --- a/src/rabbit_memsup_darwin.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup_darwin). - --export([init/0, update/2, get_memory_data/1]). - --record(state, {alarmed, - total_memory, - allocated_memory}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). - --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). - --endif. - -%%---------------------------------------------------------------------------- - -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. - -update(MemoryFraction, State = #state{ alarmed = Alarmed }) -> - File = os:cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), - PageSize = dict:fetch(page_size, Dict), - Inactive = dict:fetch('Pages inactive', Dict), - Active = dict:fetch('Pages active', Dict), - Free = dict:fetch('Pages free', Dict), - Wired = dict:fetch('Pages wired down', Dict), - MemTotal = PageSize * (Inactive + Active + Free + Wired), - MemUsed = PageSize * (Active + Wired), - NewAlarmed = MemUsed / MemTotal > MemoryFraction, - case {Alarmed, NewAlarmed} of - {false, true} -> - alarm_handler:set_alarm({system_memory_high_watermark, []}); - {true, false} -> - alarm_handler:clear_alarm(system_memory_high_watermark); - _ -> - ok - end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. - -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. - -%%---------------------------------------------------------------------------- - -%% A line looks like "Foo bar: 123456." -parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. diff --git a/src/rabbit_memsup_linux.erl b/src/rabbit_memsup_linux.erl index 460fd88f..ffdc7e99 100644 --- a/src/rabbit_memsup_linux.erl +++ b/src/rabbit_memsup_linux.erl @@ -31,36 +31,74 @@ -module(rabbit_memsup_linux). --export([init/0, update/2, get_memory_data/1]). +-behaviour(gen_server). --record(state, {alarmed, - total_memory, - allocated_memory}). +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([update/0]). + +-define(SERVER, memsup). %% must be the same as the standard memsup + +-define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). + +-record(state, {memory_fraction, alarmed, timeout, timer}). %%---------------------------------------------------------------------------- -ifdef(use_specs). --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(update/0 :: () -> 'ok'). + +-endif. --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). +%%---------------------------------------------------------------------------- --endif. +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + + +update() -> + gen_server:cast(?SERVER, update). %%---------------------------------------------------------------------------- -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. +init(_Args) -> + Fraction = os_mon:get_env(memsup, system_memory_high_watermark), + TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), + {ok, #state{alarmed = false, + memory_fraction = Fraction, + timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, + timer = TRef}}. -update(MemoryFraction, State = #state { alarmed = Alarmed }) -> +start_timer(Timeout) -> + {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), + TRef. + +%% Export the same API as the real memsup. Note that +%% get_sysmem_high_watermark gives an int in the range 0 - 100, while +%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. +handle_call(get_sysmem_high_watermark, _From, State) -> + {reply, trunc(100 * State#state.memory_fraction), State}; + +handle_call({set_sysmem_high_watermark, Float}, _From, State) -> + {reply, ok, State#state{memory_fraction = Float}}; + +handle_call(get_check_interval, _From, State) -> + {reply, State#state.timeout, State}; + +handle_call({set_check_interval, Timeout}, _From, State) -> + {ok, cancel} = timer:cancel(State#state.timer), + {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; + +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast(update, State = #state{alarmed = Alarmed, + memory_fraction = MemoryFraction}) -> File = read_proc_file("/proc/meminfo"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), @@ -78,11 +116,19 @@ update(MemoryFraction, State = #state { alarmed = Alarmed }) -> _ -> ok end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. + {noreply, State#state{alarmed = NewAlarmed}}; + +handle_cast(_Request, State) -> + {noreply, State}. + +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok. -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. +code_change(_OldVsn, State, _Extra) -> + {ok, State}. %%---------------------------------------------------------------------------- @@ -106,10 +152,5 @@ read_proc_file(IoDevice, Acc) -> %% A line looks like "FooBar: 123456 kB" parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. + [Name, Value | _] = string:tokens(Line, ": "), + {list_to_atom(Name), list_to_integer(Value)}. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index c328c111..abf4c7cc 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -53,7 +53,6 @@ -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, keygets/2]). -import(mnesia). -import(lists). @@ -117,11 +116,7 @@ -spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). -spec(start_applications/1 :: ([atom()]) -> 'ok'). -spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> number()). --spec(keygets/2 :: ([({K, V} | {K, non_neg_integer(), V})], [any()]) -> - [({K, V} | any())]). - + -endif. %%---------------------------------------------------------------------------- @@ -365,8 +360,7 @@ dirty_foreach_key1(F, TableName, K) -> end. dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, - {file, FileName}]), + {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, {file, FileName}]), dirty_dump_log1(LH, disk_log:chunk(LH, start)), disk_log:close(LH). @@ -450,33 +444,3 @@ stop_applications(Apps) -> cannot_stop_application, Apps). -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N - T of - 0 -> N; - _ -> 1 + T - end. - -keygets(Keys, KeyList) -> - lists:reverse( - lists:foldl( - fun({Key, Pos, Default}, Acc) -> - case lists:keysearch(Key, Pos, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end; - ({Key, Default}, Acc) -> - case lists:keysearch(Key, 1, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end - end, [], Keys)). diff --git a/src/rabbit_mixed_queue.erl b/src/rabbit_mixed_queue.erl deleted file mode 100644 index 4b0810a8..00000000 --- a/src/rabbit_mixed_queue.erl +++ /dev/null @@ -1,596 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_mixed_queue). - --include("rabbit.hrl"). - --export([init/2]). - --export([publish/2, publish_delivered/2, deliver/1, ack/2, - tx_publish/2, tx_commit/3, tx_cancel/2, requeue/2, purge/1, - length/1, is_empty/1, delete_queue/1, maybe_prefetch/1]). - --export([to_disk_only_mode/2, to_mixed_mode/2, info/1, - estimate_queue_memory_and_reset_counters/1]). - --record(mqstate, { mode, - msg_buf, - queue, - is_durable, - length, - memory_size, - memory_gain, - memory_loss, - prefetcher - } - ). - --define(TO_DISK_MAX_FLUSH_SIZE, 100000). - --ifdef(use_specs). - --type(mode() :: ( 'disk' | 'mixed' )). --type(mqstate() :: #mqstate { mode :: mode(), - msg_buf :: queue(), - queue :: queue_name(), - is_durable :: bool(), - length :: non_neg_integer(), - memory_size :: (non_neg_integer() | 'undefined'), - memory_gain :: (non_neg_integer() | 'undefined'), - memory_loss :: (non_neg_integer() | 'undefined'), - prefetcher :: (pid() | 'undefined') - }). --type(acktag() :: ( 'noack' | { non_neg_integer(), non_neg_integer() })). --type(okmqs() :: {'ok', mqstate()}). - --spec(init/2 :: (queue_name(), bool()) -> okmqs()). --spec(publish/2 :: (message(), mqstate()) -> okmqs()). --spec(publish_delivered/2 :: (message(), mqstate()) -> - {'ok', acktag(), mqstate()}). --spec(deliver/1 :: (mqstate()) -> - {('empty' | {message(), bool(), acktag(), non_neg_integer()}), - mqstate()}). --spec(ack/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(tx_publish/2 :: (message(), mqstate()) -> okmqs()). --spec(tx_commit/3 :: ([message()], [acktag()], mqstate()) -> okmqs()). --spec(tx_cancel/2 :: ([message()], mqstate()) -> okmqs()). --spec(requeue/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(purge/1 :: (mqstate()) -> okmqs()). - --spec(delete_queue/1 :: (mqstate()) -> {'ok', mqstate()}). - --spec(length/1 :: (mqstate()) -> non_neg_integer()). --spec(is_empty/1 :: (mqstate()) -> bool()). - --spec(to_disk_only_mode/2 :: ([message()], mqstate()) -> okmqs()). --spec(to_mixed_mode/2 :: ([message()], mqstate()) -> okmqs()). - --spec(estimate_queue_memory_and_reset_counters/1 :: (mqstate()) -> - {mqstate(), non_neg_integer(), non_neg_integer(), - non_neg_integer()}). --spec(info/1 :: (mqstate()) -> mode()). - --endif. - -init(Queue, IsDurable) -> - Len = rabbit_disk_queue:length(Queue), - MsgBuf = inc_queue_length(Queue, queue:new(), Len), - Size = rabbit_disk_queue:foldl( - fun ({Msg = #basic_message { is_persistent = true }, - _Size, _IsDelivered, _AckTag}, Acc) -> - Acc + size_of_message(Msg) - end, 0, Queue), - {ok, #mqstate { mode = disk, msg_buf = MsgBuf, queue = Queue, - is_durable = IsDurable, length = Len, - memory_size = Size, memory_gain = undefined, - memory_loss = undefined, prefetcher = undefined }}. - -size_of_message( - #basic_message { content = #content { payload_fragments_rev = Payload }}) -> - lists:foldl(fun (Frag, SumAcc) -> - SumAcc + size(Frag) - end, 0, Payload). - -to_disk_only_mode(_TxnMessages, State = #mqstate { mode = disk }) -> - {ok, State}; -to_disk_only_mode(TxnMessages, State = - #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, prefetcher = Prefetcher - }) -> - rabbit_log:info("Converting queue to disk only mode: ~p~n", [Q]), - State1 = State #mqstate { mode = disk }, - {MsgBuf1, State2} = - case Prefetcher of - undefined -> {MsgBuf, State1}; - _ -> - case rabbit_queue_prefetcher:drain_and_stop(Prefetcher) of - empty -> {MsgBuf, State1}; - {Fetched, Len} -> - State3 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State1), - {queue:join(Fetched, MsgBuf2), State3} - end - end, - %% We enqueue _everything_ here. This means that should a message - %% already be in the disk queue we must remove it and add it back - %% in. Fortunately, by using requeue, we avoid rewriting the - %% message on disk. - %% Note we also batch together messages on disk so that we minimise - %% the calls to requeue. - {ok, MsgBuf3} = - send_messages_to_disk(IsDurable, Q, MsgBuf1, 0, 0, [], queue:new()), - %% tx_publish txn messages. Some of these will have been already - %% published if they really are durable and persistent which is - %% why we can't just use our own tx_publish/2 function (would end - %% up publishing twice, so refcount would go wrong in disk_queue). - lists:foreach( - fun (Msg = #basic_message { is_persistent = IsPersistent }) -> - ok = case IsDurable andalso IsPersistent of - true -> ok; - _ -> rabbit_disk_queue:tx_publish(Msg) - end - end, TxnMessages), - garbage_collect(), - {ok, State2 #mqstate { msg_buf = MsgBuf3, prefetcher = undefined }}. - -send_messages_to_disk(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf) -> - case queue:out(Queue) of - {empty, _Queue} -> - ok = flush_messages_to_disk_queue(Q, Commit), - [] = flush_requeue_to_disk_queue(Q, RequeueCount, []), - {ok, MsgBuf}; - {{value, {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered}}, Queue1} -> - case IsDurable andalso IsPersistent of - true -> %% it's already in the Q - send_messages_to_disk( - IsDurable, Q, Queue1, PublishCount, RequeueCount + 1, - Commit, inc_queue_length(Q, MsgBuf, 1)); - false -> - republish_message_to_disk_queue( - IsDurable, Q, Queue1, PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered) - end; - {{value, {Msg, IsDelivered, _AckTag}}, Queue1} -> - %% these have come via the prefetcher, so are no longer in - %% the disk queue so they need to be republished - republish_message_to_disk_queue(IsDelivered, Q, Queue1, - PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered); - {{value, {Q, Count}}, Queue1} -> - send_messages_to_disk(IsDurable, Q, Queue1, PublishCount, - RequeueCount + Count, Commit, - inc_queue_length(Q, MsgBuf, Count)) - end. - -republish_message_to_disk_queue(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf, Msg = - #basic_message { guid = MsgId }, IsDelivered) -> - Commit1 = flush_requeue_to_disk_queue(Q, RequeueCount, Commit), - ok = rabbit_disk_queue:tx_publish(Msg), - {PublishCount1, Commit2} = - case PublishCount == ?TO_DISK_MAX_FLUSH_SIZE of - true -> ok = flush_messages_to_disk_queue(Q, Commit1), - {1, [{MsgId, IsDelivered}]}; - false -> {PublishCount + 1, [{MsgId, IsDelivered} | Commit1]} - end, - send_messages_to_disk(IsDurable, Q, Queue, PublishCount1, 0, - Commit2, inc_queue_length(Q, MsgBuf, 1)). - -flush_messages_to_disk_queue(_Q, []) -> - ok; -flush_messages_to_disk_queue(Q, Commit) -> - rabbit_disk_queue:tx_commit(Q, lists:reverse(Commit), []). - -flush_requeue_to_disk_queue(_Q, 0, Commit) -> - Commit; -flush_requeue_to_disk_queue(Q, RequeueCount, Commit) -> - ok = flush_messages_to_disk_queue(Q, Commit), - ok = rabbit_disk_queue:requeue_next_n(Q, RequeueCount), - []. - -to_mixed_mode(_TxnMessages, State = #mqstate { mode = mixed }) -> - {ok, State}; -to_mixed_mode(TxnMessages, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable }) -> - rabbit_log:info("Converting queue to mixed mode: ~p~n", [Q]), - %% The queue has a token just saying how many msgs are on disk - %% (this is already built for us when in disk mode). - %% Don't actually do anything to the disk - %% Don't start prefetcher just yet because the queue maybe busy - - %% wait for hibernate timeout in the amqqueue_process. - - %% Remove txn messages from disk which are neither persistent and - %% durable. This is necessary to avoid leaks. This is also pretty - %% much the inverse behaviour of our own tx_cancel/2 which is why - %% we're not using it. - Cancel = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent }, Acc) -> - case IsDurable andalso IsPersistent of - true -> Acc; - false -> [Msg #basic_message.guid | Acc] - end - end, [], TxnMessages), - ok = if Cancel == [] -> ok; - true -> rabbit_disk_queue:tx_cancel(Cancel) - end, - garbage_collect(), - {ok, State #mqstate { mode = mixed }}. - -inc_queue_length(_Q, MsgBuf, 0) -> - MsgBuf; -inc_queue_length(Q, MsgBuf, Count) -> - {NewCount, MsgBufTail} = - case queue:out_r(MsgBuf) of - {empty, MsgBuf1} -> {Count, MsgBuf1}; - {{value, {Q, Len}}, MsgBuf1} -> {Len + Count, MsgBuf1}; - {{value, _}, _MsgBuf1} -> {Count, MsgBuf} - end, - queue:in({Q, NewCount}, MsgBufTail). - -dec_queue_length(Count, State = #mqstate { queue = Q, msg_buf = MsgBuf }) -> - case queue:out(MsgBuf) of - {{value, {Q, Len}}, MsgBuf1} -> - case Len of - Count -> - maybe_prefetch(State #mqstate { msg_buf = MsgBuf1 }); - _ when Len > Count -> - State #mqstate { msg_buf = queue:in_r({Q, Len-Count}, - MsgBuf1)} - end; - _ -> State - end. - -maybe_prefetch(State = #mqstate { prefetcher = undefined, - mode = mixed, - msg_buf = MsgBuf, - queue = Q }) -> - case queue:peek(MsgBuf) of - {value, {Q, Count}} -> {ok, Prefetcher} = - rabbit_queue_prefetcher:start_link(Q, Count), - State #mqstate { prefetcher = Prefetcher }; - _ -> State - end; -maybe_prefetch(State) -> - State. - -publish(Msg, State = #mqstate { mode = disk, queue = Q, length = Length, - msg_buf = MsgBuf, memory_size = QSize, - memory_gain = Gain }) -> - MsgBuf1 = inc_queue_length(Q, MsgBuf, 1), - ok = rabbit_disk_queue:publish(Q, Msg, false), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_gain = Gain + MsgSize, - memory_size = QSize + MsgSize, - msg_buf = MsgBuf1, length = Length + 1 }}; -publish(Msg = #basic_message { is_persistent = IsPersistent }, State = - #mqstate { queue = Q, mode = mixed, is_durable = IsDurable, - msg_buf = MsgBuf, length = Length, memory_size = QSize, - memory_gain = Gain }) -> - ok = case IsDurable andalso IsPersistent of - true -> rabbit_disk_queue:publish(Q, Msg, false); - false -> ok - end, - MsgSize = size_of_message(Msg), - {ok, State #mqstate { msg_buf = queue:in({Msg, false}, MsgBuf), - length = Length + 1, memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -%% Assumption here is that the queue is empty already (only called via -%% attempt_immediate_delivery). -publish_delivered(Msg = - #basic_message { guid = MsgId, is_persistent = IsPersistent}, - State = - #mqstate { mode = Mode, is_durable = IsDurable, - queue = Q, length = 0, - memory_size = QSize, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:publish(Q, Msg, true), - MsgSize = size_of_message(Msg), - State1 = State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }, - case IsDurable andalso IsPersistent of - true -> - %% must call phantom_deliver otherwise the msg remains at - %% the head of the queue. This is synchronous, but - %% unavoidable as we need the AckTag - {MsgId, IsPersistent, true, AckTag, 0} = - rabbit_disk_queue:phantom_deliver(Q), - {ok, AckTag, State1}; - false -> - %% in this case, we don't actually care about the ack, so - %% auto ack it (asynchronously). - ok = rabbit_disk_queue:auto_ack_next_message(Q), - {ok, noack, State1} - end; -publish_delivered(Msg, State = - #mqstate { mode = mixed, length = 0, memory_size = QSize, - memory_gain = Gain }) -> - MsgSize = size_of_message(Msg), - {ok, noack, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -deliver(State = #mqstate { length = 0 }) -> - {empty, State}; -deliver(State = #mqstate { msg_buf = MsgBuf, queue = Q, - is_durable = IsDurable, length = Length, - prefetcher = Prefetcher }) -> - {{value, Value}, MsgBuf1} = queue:out(MsgBuf), - Rem = Length - 1, - State1 = State #mqstate { length = Rem }, - case Value of - {Msg = #basic_message { guid = MsgId, is_persistent = IsPersistent }, - IsDelivered} -> - AckTag = - case IsDurable andalso IsPersistent of - true -> - {MsgId, IsPersistent, IsDelivered, AckTag1, _PRem} - = rabbit_disk_queue:phantom_deliver(Q), - AckTag1; - false -> - noack - end, - State2 = maybe_prefetch(State1 #mqstate { msg_buf = MsgBuf1 }), - {{Msg, IsDelivered, AckTag, Rem}, State2}; - {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTag} -> - %% message has come via the prefetcher, thus it's been - %% delivered. If it's not persistent+durable, we should - %% ack it now - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, - State1 #mqstate { msg_buf = MsgBuf1 }}; - _ when Prefetcher == undefined -> - State2 = dec_queue_length(1, State1), - {Msg = #basic_message { is_persistent = IsPersistent }, - _Size, IsDelivered, AckTag, _PersistRem} - = rabbit_disk_queue:deliver(Q), - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, State2}; - _ -> - case rabbit_queue_prefetcher:drain(Prefetcher) of - empty -> deliver(State #mqstate { prefetcher = undefined }); - {Fetched, Len, Status} -> - State2 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State), - deliver(State2 #mqstate - { msg_buf = queue:join(Fetched, MsgBuf2), - prefetcher = case Status of - finished -> undefined; - continuing -> Prefetcher - end }) - end - end. - -maybe_ack(_Q, true, true, AckTag) -> - AckTag; -maybe_ack(Q, _, _, AckTag) -> - ok = rabbit_disk_queue:ack(Q, [AckTag]), - noack. - -remove_noacks(MsgsWithAcks) -> - lists:foldl( - fun ({Msg, noack}, {AccAckTags, AccSize}) -> - {AccAckTags, size_of_message(Msg) + AccSize}; - ({Msg, AckTag}, {AccAckTags, AccSize}) -> - {[AckTag | AccAckTags], size_of_message(Msg) + AccSize} - end, {[], 0}, MsgsWithAcks). - -ack(MsgsWithAcks, State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss }) -> - {AckTags, ASize} = remove_noacks(MsgsWithAcks), - ok = case AckTags of - [] -> ok; - _ -> rabbit_disk_queue:ack(Q, AckTags) - end, - State1 = State #mqstate { memory_size = QSize - ASize, - memory_loss = Loss + ASize }, - {ok, State1}. - -tx_publish(Msg = #basic_message { is_persistent = IsPersistent }, - State = #mqstate { mode = Mode, memory_size = QSize, - is_durable = IsDurable, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:tx_publish(Msg), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}; -tx_publish(Msg, State = #mqstate { mode = mixed, memory_size = QSize, - memory_gain = Gain }) -> - %% this message will reappear in the tx_commit, so ignore for now - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -only_msg_ids(Pubs) -> - lists:map(fun (Msg) -> {Msg #basic_message.guid, false} end, Pubs). - -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = disk, queue = Q, length = Length, - memory_size = QSize, memory_loss = Loss, - msg_buf = MsgBuf }) -> - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = if ([] == Publishes) andalso ([] == RealAcks) -> ok; - true -> rabbit_disk_queue:tx_commit(Q, only_msg_ids(Publishes), - RealAcks) - end, - Len = erlang:length(Publishes), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len), - memory_size = QSize - ASize, - memory_loss = Loss + ASize }}; -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, length = Length, - memory_size = QSize, memory_loss = Loss }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl(fun (Msg = #basic_message { is_persistent = IsPersistent }, - {Acc, MsgBuf2}) -> - Acc1 = - case IsPersistent andalso IsDurable of - true -> [ {Msg #basic_message.guid, false} - | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, false}, MsgBuf2)} - end, {[], MsgBuf}, Publishes), - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = case ([] == PersistentPubs) andalso ([] == RealAcks) of - true -> ok; - false -> rabbit_disk_queue:tx_commit( - Q, lists:reverse(PersistentPubs), RealAcks) - end, - {ok, State #mqstate { msg_buf = MsgBuf1, memory_size = QSize - ASize, - length = Length + erlang:length(Publishes), - memory_loss = Loss + ASize }}. - -tx_cancel(Publishes, State = #mqstate { mode = disk, memory_size = QSize, - memory_loss = Loss }) -> - {MsgIds, CSize} = - lists:foldl( - fun (Msg = #basic_message { guid = MsgId }, {MsgIdsAcc, CSizeAcc}) -> - {[MsgId | MsgIdsAcc], CSizeAcc + size_of_message(Msg)} - end, {[], 0}, Publishes), - ok = rabbit_disk_queue:tx_cancel(MsgIds), - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}; -tx_cancel(Publishes, State = #mqstate { mode = mixed, is_durable = IsDurable, - memory_size = QSize, - memory_loss = Loss }) -> - {PersistentPubs, CSize} = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, {Acc, CSizeAcc}) -> - CSizeAcc1 = CSizeAcc + size_of_message(Msg), - {case IsPersistent of - true -> [MsgId | Acc]; - _ -> Acc - end, CSizeAcc1} - end, {[], 0}, Publishes), - ok = - if IsDurable -> - rabbit_disk_queue:tx_cancel(PersistentPubs); - true -> ok - end, - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}. - -%% [{Msg, AckTag}] -requeue(MessagesWithAckTags, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable, - length = Length, - msg_buf = MsgBuf }) -> - %% here, we may have messages with no ack tags, because of the - %% fact they are not persistent, but nevertheless we want to - %% requeue them. This means publishing them delivered. - Requeue - = lists:foldl( - fun ({#basic_message { is_persistent = IsPersistent }, AckTag}, RQ) - when IsDurable andalso IsPersistent -> - [{AckTag, true} | RQ]; - ({Msg, noack}, RQ) -> - ok = case RQ == [] of - true -> ok; - false -> rabbit_disk_queue:requeue( - Q, lists:reverse(RQ)) - end, - ok = rabbit_disk_queue:publish(Q, Msg, true), - [] - end, [], MessagesWithAckTags), - ok = rabbit_disk_queue:requeue(Q, lists:reverse(Requeue)), - Len = erlang:length(MessagesWithAckTags), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len) }}; -requeue(MessagesWithAckTags, State = #mqstate { mode = mixed, queue = Q, - msg_buf = MsgBuf, - is_durable = IsDurable, - length = Length }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, AckTag}, - {Acc, MsgBuf2}) -> - Acc1 = - case IsDurable andalso IsPersistent of - true -> [{AckTag, true} | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, true}, MsgBuf2)} - end, {[], MsgBuf}, MessagesWithAckTags), - ok = case PersistentPubs of - [] -> ok; - _ -> rabbit_disk_queue:requeue(Q, lists:reverse(PersistentPubs)) - end, - {ok, State #mqstate {msg_buf = MsgBuf1, - length = Length + erlang:length(MessagesWithAckTags)}}. - -purge(State = #mqstate { queue = Q, mode = disk, length = Count, - memory_loss = Loss, memory_size = QSize }) -> - Count = rabbit_disk_queue:purge(Q), - {Count, State #mqstate { length = 0, memory_size = 0, - memory_loss = Loss + QSize }}; -purge(State = #mqstate { queue = Q, mode = mixed, length = Length, - memory_loss = Loss, memory_size = QSize, - prefetcher = Prefetcher }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - rabbit_disk_queue:purge(Q), - {Length, - State #mqstate { msg_buf = queue:new(), length = 0, memory_size = 0, - memory_loss = Loss + QSize, prefetcher = undefined }}. - -delete_queue(State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss, prefetcher = Prefetcher - }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - ok = rabbit_disk_queue:delete_queue(Q), - {ok, State #mqstate { length = 0, memory_size = 0, msg_buf = queue:new(), - memory_loss = Loss + QSize, prefetcher = undefined }}. - -length(#mqstate { length = Length }) -> - Length. - -is_empty(#mqstate { length = Length }) -> - 0 == Length. - -estimate_queue_memory_and_reset_counters(State = - #mqstate { memory_size = Size, memory_gain = Gain, memory_loss = Loss }) -> - {State #mqstate { memory_gain = 0, memory_loss = 0 }, 4 * Size, Gain, Loss}. - -info(#mqstate { mode = Mode }) -> - Mode. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index b40294f6..26c8fbe2 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -144,14 +144,7 @@ table_definitions() -> {disc_copies, [node()]}]}, {rabbit_queue, [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}, - {rabbit_disk_queue, - [{record_name, dq_msg_loc}, - {type, set}, - {local_content, true}, - {attributes, record_info(fields, dq_msg_loc)}, - {disc_copies, [node()]}]} - ]. + {attributes, record_info(fields, amqqueue)}]}]. replicated_table_definitions() -> [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl new file mode 100644 index 00000000..d0d60ddf --- /dev/null +++ b/src/rabbit_persister.erl @@ -0,0 +1,523 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_persister). + +-behaviour(gen_server). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([transaction/1, extend_transaction/2, dirty_work/1, + commit_transaction/1, rollback_transaction/1, + force_snapshot/0, serial/0]). + +-include("rabbit.hrl"). + +-define(SERVER, ?MODULE). + +-define(LOG_BUNDLE_DELAY, 5). +-define(COMPLETE_BUNDLE_DELAY, 2). + +-define(HIBERNATE_AFTER, 10000). + +-define(MAX_WRAP_ENTRIES, 500). + +-define(PERSISTER_LOG_FORMAT_VERSION, {2, 4}). + +-record(pstate, {log_handle, entry_count, deadline, + pending_logs, pending_replies, + snapshot}). + +%% two tables for efficient persistency +%% one maps a key to a message +%% the other maps a key to one or more queues. +%% The aim is to reduce the overload of storing a message multiple times +%% when it appears in several queues. +-record(psnapshot, {serial, transactions, messages, queues}). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(qmsg() :: {amqqueue(), pkey()}). +-type(work_item() :: + {publish, message(), qmsg()} | + {deliver, qmsg()} | + {ack, qmsg()}). + +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(transaction/1 :: ([work_item()]) -> 'ok'). +-spec(extend_transaction/2 :: (txn(), [work_item()]) -> 'ok'). +-spec(dirty_work/1 :: ([work_item()]) -> 'ok'). +-spec(commit_transaction/1 :: (txn()) -> 'ok'). +-spec(rollback_transaction/1 :: (txn()) -> 'ok'). +-spec(force_snapshot/0 :: () -> 'ok'). +-spec(serial/0 :: () -> non_neg_integer()). + +-endif. + +%%---------------------------------------------------------------------------- + +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + +transaction(MessageList) -> + ?LOGDEBUG("transaction ~p~n", [MessageList]), + TxnKey = rabbit_guid:guid(), + gen_server:call(?SERVER, {transaction, TxnKey, MessageList}, infinity). + +extend_transaction(TxnKey, MessageList) -> + ?LOGDEBUG("extend_transaction ~p ~p~n", [TxnKey, MessageList]), + gen_server:cast(?SERVER, {extend_transaction, TxnKey, MessageList}). + +dirty_work(MessageList) -> + ?LOGDEBUG("dirty_work ~p~n", [MessageList]), + gen_server:cast(?SERVER, {dirty_work, MessageList}). + +commit_transaction(TxnKey) -> + ?LOGDEBUG("commit_transaction ~p~n", [TxnKey]), + gen_server:call(?SERVER, {commit_transaction, TxnKey}, infinity). + +rollback_transaction(TxnKey) -> + ?LOGDEBUG("rollback_transaction ~p~n", [TxnKey]), + gen_server:cast(?SERVER, {rollback_transaction, TxnKey}). + +force_snapshot() -> + gen_server:call(?SERVER, force_snapshot, infinity). + +serial() -> + gen_server:call(?SERVER, serial, infinity). + +%%-------------------------------------------------------------------- + +init(_Args) -> + process_flag(trap_exit, true), + FileName = base_filename(), + ok = filelib:ensure_dir(FileName), + Snapshot = #psnapshot{serial = 0, + transactions = dict:new(), + messages = ets:new(messages, []), + queues = ets:new(queues, [])}, + LogHandle = + case disk_log:open([{name, rabbit_persister}, + {head, current_snapshot(Snapshot)}, + {file, FileName}]) of + {ok, LH} -> LH; + {repaired, LH, {recovered, Recovered}, {badbytes, Bad}} -> + WarningFun = if + Bad > 0 -> fun rabbit_log:warning/2; + true -> fun rabbit_log:info/2 + end, + WarningFun("Repaired persister log - ~p recovered, ~p bad~n", + [Recovered, Bad]), + LH + end, + {Res, LoadedSnapshot} = internal_load_snapshot(LogHandle, Snapshot), + NewSnapshot = LoadedSnapshot#psnapshot{ + serial = LoadedSnapshot#psnapshot.serial + 1}, + case Res of + ok -> + ok = take_snapshot(LogHandle, NewSnapshot); + {error, Reason} -> + rabbit_log:error("Failed to load persister log: ~p~n", [Reason]), + ok = take_snapshot_and_save_old(LogHandle, NewSnapshot) + end, + State = #pstate{log_handle = LogHandle, + entry_count = 0, + deadline = infinity, + pending_logs = [], + pending_replies = [], + snapshot = NewSnapshot}, + {ok, State}. + +handle_call({transaction, Key, MessageList}, From, State) -> + NewState = internal_extend(Key, MessageList, State), + do_noreply(internal_commit(From, Key, NewState)); +handle_call({commit_transaction, TxnKey}, From, State) -> + do_noreply(internal_commit(From, TxnKey, State)); +handle_call(force_snapshot, _From, State) -> + do_reply(ok, flush(true, State)); +handle_call(serial, _From, + State = #pstate{snapshot = #psnapshot{serial = Serial}}) -> + do_reply(Serial, State); +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast({rollback_transaction, TxnKey}, State) -> + do_noreply(internal_rollback(TxnKey, State)); +handle_cast({dirty_work, MessageList}, State) -> + do_noreply(internal_dirty_work(MessageList, State)); +handle_cast({extend_transaction, TxnKey, MessageList}, State) -> + do_noreply(internal_extend(TxnKey, MessageList, State)); +handle_cast(_Msg, State) -> + {noreply, State}. + +handle_info(timeout, State = #pstate{deadline = infinity}) -> + State1 = flush(true, State), + %% TODO: Once we drop support for R11B-5, we can change this to + %% {noreply, State1, hibernate}; + proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State1]); +handle_info(timeout, State) -> + do_noreply(flush(State)); +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, State = #pstate{log_handle = LogHandle}) -> + flush(State), + disk_log:close(LogHandle), + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, flush(State)}. + +%%-------------------------------------------------------------------- + +internal_extend(Key, MessageList, State) -> + log_work(fun (ML) -> {extend_transaction, Key, ML} end, + MessageList, State). + +internal_dirty_work(MessageList, State) -> + log_work(fun (ML) -> {dirty_work, ML} end, + MessageList, State). + +internal_commit(From, Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {commit_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + complete(From, Unit, State#pstate{snapshot = NewSnapshot}). + +internal_rollback(Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {rollback_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +complete(From, Item, State = #pstate{deadline = ExistingDeadline, + pending_logs = Logs, + pending_replies = Waiting}) -> + State#pstate{deadline = compute_deadline( + ?COMPLETE_BUNDLE_DELAY, ExistingDeadline), + pending_logs = [Item | Logs], + pending_replies = [From | Waiting]}. + +%% This is made to limit disk usage by writing messages only once onto +%% disk. We keep a table associating pkeys to messages, and provided +%% the list of messages to output is left to right, we can guarantee +%% that pkeys will be a backreference to a message in memory when a +%% "tied" is met. +log_work(CreateWorkUnit, MessageList, + State = #pstate{ + snapshot = Snapshot = #psnapshot{ + messages = Messages}}) -> + Unit = CreateWorkUnit( + rabbit_misc:map_in_order( + fun(M = {publish, Message, QK = {_QName, PKey}}) -> + case ets:lookup(Messages, PKey) of + [_] -> {tied, QK}; + [] -> ets:insert(Messages, {PKey, Message}), + M + end; + (M) -> M + end, + MessageList)), + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +log(State = #pstate{deadline = ExistingDeadline, pending_logs = Logs}, + Message) -> + State#pstate{deadline = compute_deadline(?LOG_BUNDLE_DELAY, + ExistingDeadline), + pending_logs = [Message | Logs]}. + +base_filename() -> + rabbit_mnesia:dir() ++ "/rabbit_persister.LOG". + +take_snapshot(LogHandle, OldFileName, Snapshot) -> + ok = disk_log:sync(LogHandle), + %% current_snapshot is the Head (ie. first thing logged) + ok = disk_log:reopen(LogHandle, OldFileName, current_snapshot(Snapshot)). + +take_snapshot(LogHandle, Snapshot) -> + OldFileName = lists:flatten(base_filename() ++ ".previous"), + file:delete(OldFileName), + rabbit_log:info("Rolling persister log to ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +take_snapshot_and_save_old(LogHandle, Snapshot) -> + {MegaSecs, Secs, MicroSecs} = erlang:now(), + Timestamp = MegaSecs * 1000000 + Secs * 1000 + MicroSecs, + OldFileName = lists:flatten(io_lib:format("~s.saved.~p", + [base_filename(), Timestamp])), + rabbit_log:info("Saving persister log in ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +maybe_take_snapshot(Force, State = #pstate{entry_count = EntryCount, + log_handle = LH, + snapshot = Snapshot}) + when Force orelse EntryCount >= ?MAX_WRAP_ENTRIES -> + ok = take_snapshot(LH, Snapshot), + State#pstate{entry_count = 0}; +maybe_take_snapshot(_Force, State) -> + State. + +later_ms(DeltaMilliSec) -> + {MegaSec, Sec, MicroSec} = now(), + %% Note: not normalised. Unimportant for this application. + {MegaSec, Sec, MicroSec + (DeltaMilliSec * 1000)}. + +%% Result = B - A, more or less +time_diff({B1, B2, B3}, {A1, A2, A3}) -> + (B1 - A1) * 1000000 + (B2 - A2) + (B3 - A3) / 1000000.0 . + +compute_deadline(TimerDelay, infinity) -> + later_ms(TimerDelay); +compute_deadline(_TimerDelay, ExistingDeadline) -> + ExistingDeadline. + +compute_timeout(infinity) -> + ?HIBERNATE_AFTER; +compute_timeout(Deadline) -> + DeltaMilliSec = time_diff(Deadline, now()) * 1000.0, + if + DeltaMilliSec =< 1 -> + 0; + true -> + round(DeltaMilliSec) + end. + +do_noreply(State = #pstate{deadline = Deadline}) -> + {noreply, State, compute_timeout(Deadline)}. + +do_reply(Reply, State = #pstate{deadline = Deadline}) -> + {reply, Reply, State, compute_timeout(Deadline)}. + +flush(State) -> flush(false, State). + +flush(ForceSnapshot, State = #pstate{pending_logs = PendingLogs, + pending_replies = Waiting, + log_handle = LogHandle}) -> + State1 = if PendingLogs /= [] -> + disk_log:alog(LogHandle, lists:reverse(PendingLogs)), + State#pstate{entry_count = State#pstate.entry_count + 1}; + true -> + State + end, + State2 = maybe_take_snapshot(ForceSnapshot, State1), + if Waiting /= [] -> + ok = disk_log:sync(LogHandle), + lists:foreach(fun (From) -> gen_server:reply(From, ok) end, + Waiting); + true -> + ok + end, + State2#pstate{deadline = infinity, + pending_logs = [], + pending_replies = []}. + +current_snapshot(_Snapshot = #psnapshot{serial = Serial, + transactions= Ts, + messages = Messages, + queues = Queues}) -> + %% Avoid infinite growth of the table by removing messages not + %% bound to a queue anymore + prune_table(Messages, ets:foldl( + fun ({{_QName, PKey}, _Delivered}, S) -> + sets:add_element(PKey, S) + end, sets:new(), Queues)), + InnerSnapshot = {{serial, Serial}, + {txns, Ts}, + {messages, ets:tab2list(Messages)}, + {queues, ets:tab2list(Queues)}}, + ?LOGDEBUG("Inner snapshot: ~p~n", [InnerSnapshot]), + {persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + term_to_binary(InnerSnapshot)}. + +prune_table(Tab, Keys) -> + true = ets:safe_fixtable(Tab, true), + ok = prune_table(Tab, Keys, ets:first(Tab)), + true = ets:safe_fixtable(Tab, false). + +prune_table(_Tab, _Keys, '$end_of_table') -> ok; +prune_table(Tab, Keys, Key) -> + case sets:is_element(Key, Keys) of + true -> ok; + false -> ets:delete(Tab, Key) + end, + prune_table(Tab, Keys, ets:next(Tab, Key)). + +internal_load_snapshot(LogHandle, + Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + {K, [Loaded_Snapshot | Items]} = disk_log:chunk(LogHandle, start), + case check_version(Loaded_Snapshot) of + {ok, StateBin} -> + {{serial, Serial}, {txns, Ts}, {messages, Ms}, {queues, Qs}} = + binary_to_term(StateBin), + true = ets:insert(Messages, Ms), + true = ets:insert(Queues, Qs), + Snapshot1 = replay(Items, LogHandle, K, + Snapshot#psnapshot{ + serial = Serial, + transactions = Ts}), + Snapshot2 = requeue_messages(Snapshot1), + %% uncompleted transactions are discarded - this is TRTTD + %% since we only get into this code on node restart, so + %% any uncompleted transactions will have been aborted. + {ok, Snapshot2#psnapshot{transactions = dict:new()}}; + {error, Reason} -> {{error, Reason}, Snapshot} + end. + +check_version({persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + StateBin}) -> + {ok, StateBin}; +check_version({persist_snapshot, {vsn, Vsn}, _StateBin}) -> + {error, {unsupported_persister_log_format, Vsn}}; +check_version(_Other) -> + {error, unrecognised_persister_log_format}. + +requeue_messages(Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + Work = ets:foldl(fun accumulate_requeues/2, dict:new(), Queues), + %% unstable parallel map, because order doesn't matter + L = lists:append( + rabbit_misc:upmap( + %% we do as much work as possible in spawned worker + %% processes, but we need to make sure the ets:inserts are + %% performed in self() + fun ({QName, Requeues}) -> + requeue(QName, Requeues, Messages) + end, dict:to_list(Work))), + NewMessages = [{K, M} || {{_Q, K}, M, _D} <- L], + NewQueues = [{QK, D} || {QK, _M, D} <- L], + ets:delete_all_objects(Messages), + ets:delete_all_objects(Queues), + true = ets:insert(Messages, NewMessages), + true = ets:insert(Queues, NewQueues), + %% contains the mutated messages and queues tables + Snapshot. + +accumulate_requeues({{QName, PKey}, Delivered}, Acc) -> + Requeue = {PKey, Delivered}, + dict:update(QName, + fun (Requeues) -> [Requeue | Requeues] end, + [Requeue], + Acc). + +requeue(QName, Requeues, Messages) -> + case rabbit_amqqueue:lookup(QName) of + {ok, #amqqueue{pid = QPid}} -> + RequeueMessages = + [{{QName, PKey}, Message, Delivered} || + {PKey, Delivered} <- Requeues, + {_, Message} <- ets:lookup(Messages, PKey)], + rabbit_amqqueue:redeliver( + QPid, + %% Messages published by the same process receive + %% persistence keys that are monotonically + %% increasing. Since message ordering is defined on a + %% per-channel basis, and channels are bound to specific + %% processes, sorting the list does provide the correct + %% ordering properties. + [{Message, Delivered} || {_, Message, Delivered} <- + lists:sort(RequeueMessages)]), + RequeueMessages; + {error, not_found} -> + [] + end. + +replay([], LogHandle, K, Snapshot) -> + case disk_log:chunk(LogHandle, K) of + {K1, Items} -> + replay(Items, LogHandle, K1, Snapshot); + {K1, Items, Badbytes} -> + rabbit_log:warning("~p bad bytes recovering persister log~n", + [Badbytes]), + replay(Items, LogHandle, K1, Snapshot); + eof -> Snapshot + end; +replay([Item | Items], LogHandle, K, Snapshot) -> + NewSnapshot = internal_integrate_messages(Item, Snapshot), + replay(Items, LogHandle, K, NewSnapshot). + +internal_integrate_messages(Items, Snapshot) -> + lists:foldl(fun (Item, Snap) -> internal_integrate1(Item, Snap) end, + Snapshot, Items). + +internal_integrate1({extend_transaction, Key, MessageList}, + Snapshot = #psnapshot {transactions = Transactions}) -> + NewTransactions = + dict:update(Key, + fun (MessageLists) -> [MessageList | MessageLists] end, + [MessageList], + Transactions), + Snapshot#psnapshot{transactions = NewTransactions}; +internal_integrate1({rollback_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions}) -> + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; +internal_integrate1({commit_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions, + messages = Messages, + queues = Queues}) -> + case dict:find(Key, Transactions) of + {ok, MessageLists} -> + ?LOGDEBUG("persist committing txn ~p~n", [Key]), + lists:foreach(fun (ML) -> perform_work(ML, Messages, Queues) end, + lists:reverse(MessageLists)), + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; + error -> + Snapshot + end; +internal_integrate1({dirty_work, MessageList}, + Snapshot = #psnapshot {messages = Messages, + queues = Queues}) -> + perform_work(MessageList, Messages, Queues), + Snapshot. + +perform_work(MessageList, Messages, Queues) -> + lists:foreach( + fun (Item) -> perform_work_item(Item, Messages, Queues) end, + MessageList). + +perform_work_item({publish, Message, QK = {_QName, PKey}}, Messages, Queues) -> + ets:insert(Messages, {PKey, Message}), + ets:insert(Queues, {QK, false}); + +perform_work_item({tied, QK}, _Messages, Queues) -> + ets:insert(Queues, {QK, false}); + +perform_work_item({deliver, QK}, _Messages, Queues) -> + %% from R12B-2 onward we could use ets:update_element/3 here + ets:delete(Queues, QK), + ets:insert(Queues, {QK, true}); + +perform_work_item({ack, QK}, _Messages, Queues) -> + ets:delete(Queues, QK). diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl deleted file mode 100644 index 5a6c8b39..00000000 --- a/src/rabbit_queue_mode_manager.erl +++ /dev/null @@ -1,496 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_mode_manager). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([register/5, report_memory/3, report_memory/5, info/0, - pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). - --define(TOTAL_TOKENS, 10000000). --define(ACTIVITY_THRESHOLD, 25). - --define(SERVER, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(register/5 :: (pid(), boolean(), atom(), atom(), list()) -> 'ok'). --spec(report_memory/3 :: (pid(), non_neg_integer(), bool()) -> 'ok'). --spec(report_memory/5 :: (pid(), non_neg_integer(), - (non_neg_integer() | 'undefined'), - (non_neg_integer() | 'undefined'), bool()) -> - 'ok'). --spec(pin_to_disk/1 :: (pid()) -> 'ok'). --spec(unpin_from_disk/1 :: (pid()) -> 'ok'). --spec(info/0 :: () -> [{atom(), any()}]). --spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). - --endif. - --record(state, { available_tokens, - mixed_queues, - callbacks, - tokens_per_byte, - lowrate, - hibernate, - disk_mode_pins, - unevictable, - alarmed - }). - -%% Token-credit based memory management - -%% Start off by working out the amount of memory available in the -%% system (RAM). Then, work out how many tokens each byte corresponds -%% to. This is the tokens_per_byte field. When a process registers, it -%% must provide an M-F-A triple to a function that needs one further -%% argument, which is the new mode. This will either be 'mixed' or -%% 'disk'. -%% -%% Processes then report their own memory usage, in bytes, and the -%% manager takes care of the rest. -%% -%% There are a finite number of tokens in the system. These are -%% allocated to processes as they are requested. We keep track of -%% processes which have hibernated, and processes that are doing only -%% a low rate of work. When a request for memory can't be satisfied, -%% we try and evict processes first from the hibernated group, and -%% then from the lowrate group. The hibernated group is a simple -%% queue, and so is implicitly sorted by the order in which processes -%% were added to the queue. This means that when removing from the -%% queue, we hibernate the sleepiest pid first. The lowrate group is a -%% priority queue, where the priority is the truncated log (base e) of -%% the amount of memory allocated. Thus when we remove from the queue, -%% we first remove the queue from the highest bucket. -%% -%% If the request still can't be satisfied after evicting to disk -%% everyone from those two groups (and note that we check first -%% whether or not freeing them would make available enough tokens to -%% satisfy the request rather than just sending all those queues to -%% disk and then going "whoops, didn't help after all"), then we send -%% the requesting process to disk. When a queue registers, it can -%% declare itself "unevictable". If a queue is unevictable then it -%% will not be sent to disk as a result of other processes requesting -%% more memory. However, if it itself is requesting more memory and -%% that request can't be satisfied then it is still sent to disk as -%% before. This feature is only used by the disk_queue, because if the -%% disk queue is not being used, and hibernates, and then memory -%% pressure gets tight, the disk_queue would typically be one of the -%% first processes to get sent to disk, which cripples -%% performance. Thus by setting it unevictable, it is only possible -%% for the disk_queue to be sent to disk when it is active and -%% attempting to increase its memory allocation. -%% -%% If a process has been sent to disk, it continues making -%% requests. As soon as a request can be satisfied (and this can -%% include sending other processes to disk in the way described -%% above), it will be told to come back into mixed mode. We do not -%% keep any information about queues in disk mode. -%% -%% Note that the lowrate and hibernate groups can get very out of -%% date. This is fine, and somewhat unavoidable given the absence of -%% useful APIs for queues. Thus we allow them to get out of date -%% (processes will be left in there when they change groups, -%% duplicates can appear, dead processes are not pruned etc etc etc), -%% and when we go through the groups, summing up their amount of -%% memory, we tidy up at that point. -%% -%% A process which is not evicted to disk, and is requesting a smaller -%% amount of RAM than its last request will always be satisfied. A -%% mixed-mode process that is busy but consuming an unchanging amount -%% of RAM will never be sent to disk. The disk_queue is also managed -%% in the same way. This means that a queue that has gone back to -%% being mixed after being in disk mode now has its messages counted -%% twice as they are counted both in the request made by the queue -%% (even though they may not yet be in RAM (though see the -%% prefetcher)) and also by the disk_queue. Thus the amount of -%% available RAM must be higher when going disk -> mixed than when -%% going mixed -> disk. This is fairly sensible as it reduces the risk -%% of any oscillations occurring. -%% -%% The queue process deliberately reports 4 times its estimated RAM -%% usage, and the disk_queue 2.5 times. In practise, this seems to -%% work well. Note that we are deliberately running out of tokes a -%% little early because of the fact that the mixed -> disk transition -%% can transiently eat a lot of memory and take some time (flushing a -%% few million messages to disk is never going to be instantaneous). - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -register(Pid, Unevictable, Module, Function, Args) -> - gen_server2:cast(?SERVER, {register, Pid, Unevictable, - Module, Function, Args}). - -pin_to_disk(Pid) -> - gen_server2:call(?SERVER, {pin_to_disk, Pid}). - -unpin_from_disk(Pid) -> - gen_server2:call(?SERVER, {unpin_from_disk, Pid}). - -report_memory(Pid, Memory, Hibernating) -> - report_memory(Pid, Memory, undefined, undefined, Hibernating). - -report_memory(Pid, Memory, Gain, Loss, Hibernating) -> - gen_server2:cast(?SERVER, - {report_memory, Pid, Memory, Gain, Loss, Hibernating}). - -info() -> - gen_server2:call(?SERVER, info). - -conserve_memory(_Pid, Conserve) -> - gen_server2:pcast(?SERVER, 9, {conserve_memory, Conserve}). - -init([]) -> - process_flag(trap_exit, true), - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - {MemTotal, MemUsed, _BigProc} = memsup:get_memory_data(), - MemAvail = MemTotal - MemUsed, - TPB = if MemAvail == 0 -> 0; - true -> ?TOTAL_TOKENS / MemAvail - end, - {ok, #state { available_tokens = ?TOTAL_TOKENS, - mixed_queues = dict:new(), - callbacks = dict:new(), - tokens_per_byte = TPB, - lowrate = priority_queue:new(), - hibernate = queue:new(), - disk_mode_pins = sets:new(), - unevictable = sets:new(), - alarmed = false - }}. - -handle_call({pin_to_disk, Pid}, _From, - State = #state { mixed_queues = Mixed, - callbacks = Callbacks, - available_tokens = Avail, - disk_mode_pins = Pins }) -> - {Res, State1} = - case sets:is_element(Pid, Pins) of - true -> {ok, State}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - ok = set_queue_mode(Callbacks, Pid, disk), - {ok, State #state { mixed_queues = - dict:erase(Pid, Mixed), - available_tokens = Avail + OAlloc, - disk_mode_pins = - sets:add_element(Pid, Pins) - }}; - disk -> - {ok, State #state { disk_mode_pins = - sets:add_element(Pid, Pins) }} - end - end, - {reply, Res, State1}; - -handle_call({unpin_from_disk, Pid}, _From, - State = #state { disk_mode_pins = Pins }) -> - {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; - -handle_call(info, _From, State) -> - State1 = #state { available_tokens = Avail, - mixed_queues = Mixed, - lowrate = Lazy, - hibernate = Sleepy, - disk_mode_pins = Pins, - unevictable = Unevictable } = - free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying - {reply, [{ available_tokens, Avail }, - { mixed_queues, dict:to_list(Mixed) }, - { lowrate_queues, priority_queue:to_list(Lazy) }, - { hibernated_queues, queue:to_list(Sleepy) }, - { queues_pinned_to_disk, sets:to_list(Pins) }, - { unevictable_queues, sets:to_list(Unevictable) }], State1}. - - -handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, - State = #state { mixed_queues = Mixed, - available_tokens = Avail, - callbacks = Callbacks, - disk_mode_pins = Pins, - tokens_per_byte = TPB, - alarmed = Alarmed }) -> - Req = rabbit_misc:ceil(TPB * Memory), - LowRate = case {BytesGained, BytesLost} of - {undefined, _} -> false; - {_, undefined} -> false; - {G, L} -> G < ?ACTIVITY_THRESHOLD andalso - L < ?ACTIVITY_THRESHOLD - end, - MixedActivity = if Hibernating -> hibernate; - LowRate -> lowrate; - true -> active - end, - {StateN = #state { lowrate = Lazy, hibernate = Sleepy }, ActivityNew} = - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - Avail1 = Avail + OAlloc, - State1 = - #state { available_tokens = Avail2, mixed_queues = Mixed1 } - = free_upto(Pid, Req, - State #state { available_tokens = Avail1 }), - case Req > Avail2 of - true -> %% nowt we can do, send to disk - ok = set_queue_mode(Callbacks, Pid, disk), - {State1 #state { mixed_queues = - dict:erase(Pid, Mixed1) }, disk}; - false -> %% keep mixed - {State1 #state - { mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail2 - Req }, - MixedActivity} - end; - disk -> - case sets:is_element(Pid, Pins) orelse Alarmed of - true -> - {State, disk}; - false -> - State1 = #state { available_tokens = Avail1, - mixed_queues = Mixed1 } = - free_upto(Pid, Req, State), - case Req > Avail1 orelse Hibernating orelse LowRate of - true -> - %% not enough space, or no compelling - %% reason, so stay as disk - {State1, disk}; - false -> %% can go to mixed mode - set_queue_mode(Callbacks, Pid, mixed), - {State1 #state { - mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail1 - Req }, - MixedActivity} - end - end - end, - StateN1 = - case ActivityNew of - active -> StateN; - disk -> StateN; - lowrate -> - StateN #state { lowrate = add_to_lowrate(Pid, Req, Lazy) }; - hibernate -> - StateN #state { hibernate = queue:in(Pid, Sleepy) } - end, - {noreply, StateN1}; - -handle_cast({register, Pid, IsUnevictable, Module, Function, Args}, - State = #state { callbacks = Callbacks, - unevictable = Unevictable }) -> - _MRef = erlang:monitor(process, Pid), - Unevictable1 = case IsUnevictable of - true -> sets:add_element(Pid, Unevictable); - false -> Unevictable - end, - {noreply, State #state { callbacks = dict:store - (Pid, {Module, Function, Args}, Callbacks), - unevictable = Unevictable1 - }}; - -handle_cast({conserve_memory, Conserve}, State) -> - {noreply, State #state { alarmed = Conserve }}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #state { available_tokens = Avail, - mixed_queues = Mixed }) -> - State1 = case find_queue(Pid, Mixed) of - disk -> - State; - {mixed, {Alloc, _Activity}} -> - State #state { available_tokens = Avail + Alloc, - mixed_queues = dict:erase(Pid, Mixed) } - end, - {noreply, State1}; -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -add_to_lowrate(Pid, Alloc, Lazy) -> - Bucket = if Alloc == 0 -> 0; %% can't take log(0) - true -> trunc(math:log(Alloc)) %% log base e - end, - priority_queue:in({Pid, Bucket, Alloc}, Bucket, Lazy). - -find_queue(Pid, Mixed) -> - case dict:find(Pid, Mixed) of - {ok, Value} -> {mixed, Value}; - error -> disk - end. - -set_queue_mode(Callbacks, Pid, Mode) -> - {Module, Function, Args} = dict:fetch(Pid, Callbacks), - erlang:apply(Module, Function, Args ++ [Mode]). - -tidy_and_sum_lazy(IgnorePids, Lazy, Mixed) -> - tidy_and_sum(lowrate, Mixed, - fun (Lazy1) -> - case priority_queue:out(Lazy1) of - {empty, Lazy2} -> - {empty, Lazy2}; - {{value, {Pid, _Bucket, _Alloc}}, Lazy2} -> - {{value, Pid}, Lazy2} - end - end, fun add_to_lowrate/3, IgnorePids, Lazy, - priority_queue:new(), 0). - -tidy_and_sum_sleepy(IgnorePids, Sleepy, Mixed) -> - tidy_and_sum(hibernate, Mixed, fun queue:out/1, - fun (Pid, _Alloc, Queue) -> queue:in(Pid, Queue) end, - IgnorePids, Sleepy, queue:new(), 0). - -tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, DupCheckSet, - CataInit, AnaInit, AllocAcc) -> - case Catamorphism(CataInit) of - {empty, _CataInit} -> {AnaInit, AllocAcc}; - {{value, Pid}, CataInit1} -> - {DupCheckSet1, AnaInit1, AllocAcc1} = - case sets:is_element(Pid, DupCheckSet) of - true -> - {DupCheckSet, AnaInit, AllocAcc}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {Alloc, AtomExpected}} -> - {sets:add_element(Pid, DupCheckSet), - Anamorphism(Pid, Alloc, AnaInit), - Alloc + AllocAcc}; - _ -> - {DupCheckSet, AnaInit, AllocAcc} - end - end, - tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, - DupCheckSet1, CataInit1, AnaInit1, AllocAcc1) - end. - -free_upto_lazy(IgnorePids, Callbacks, Lazy, Mixed, Req) -> - free_from( - Callbacks, - fun(_Mixed, Lazy1, LazyAcc) -> - case priority_queue:out(Lazy1) of - {empty, _Lazy2} -> - empty; - {{value, V = {Pid, Bucket, Alloc}}, Lazy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Lazy2, - priority_queue:in(V, Bucket, LazyAcc)}; - false -> {value, Lazy2, Pid, Alloc} - end - end - end, fun priority_queue:join/2, Mixed, Lazy, priority_queue:new(), Req). - -free_upto_sleepy(IgnorePids, Callbacks, Sleepy, Mixed, Req) -> - free_from(Callbacks, - fun(Mixed1, Sleepy1, SleepyAcc) -> - case queue:out(Sleepy1) of - {empty, _Sleepy2} -> - empty; - {{value, Pid}, Sleepy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Sleepy2, - queue:in(Pid, SleepyAcc)}; - false -> {Alloc, hibernate} = - dict:fetch(Pid, Mixed1), - {value, Sleepy2, Pid, Alloc} - end - end - end, fun queue:join/2, Mixed, Sleepy, queue:new(), Req). - -free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit, AnaInit, Req) -> - case Hylomorphism(Mixed, CataInit, AnaInit) of - empty -> - {AnaInit, Mixed, Req}; - {skip, CataInit1, AnaInit1} -> - free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit1, - AnaInit1, Req); - {value, CataInit1, Pid, Alloc} -> - Mixed1 = dict:erase(Pid, Mixed), - ok = set_queue_mode(Callbacks, Pid, disk), - case Req > Alloc of - true -> free_from(Callbacks, Hylomorphism, BaseCase, Mixed1, - CataInit1, AnaInit, Req - Alloc); - false -> {BaseCase(CataInit1, AnaInit), Mixed1, Req - Alloc} - end - end. - -free_upto(Pid, Req, State = #state { available_tokens = Avail, - mixed_queues = Mixed, - callbacks = Callbacks, - lowrate = Lazy, - hibernate = Sleepy, - unevictable = Unevictable }) - when Req > Avail -> - Unevictable1 = sets:add_element(Pid, Unevictable), - {Sleepy1, SleepySum} = tidy_and_sum_sleepy(Unevictable1, Sleepy, Mixed), - case Req > Avail + SleepySum of - true -> %% not enough in sleepy, have a look in lazy too - {Lazy1, LazySum} = tidy_and_sum_lazy(Unevictable1, Lazy, Mixed), - case Req > Avail + SleepySum + LazySum of - true -> %% can't free enough, just return tidied state - State #state { lowrate = Lazy1, hibernate = Sleepy1 }; - false -> %% need to free all of sleepy, and some of lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, - Sleepy1, Mixed, Req), - {Lazy2, Mixed2, ReqRem1} = - free_upto_lazy(Unevictable1, Callbacks, - Lazy1, Mixed1, ReqRem), - %% ReqRem1 will be <= 0 because it's - %% likely we'll have freed more than we - %% need, thus Req - ReqRem1 is total freed - State #state { available_tokens = Avail + (Req - ReqRem1), - mixed_queues = Mixed2, lowrate = Lazy2, - hibernate = Sleepy2 } - end; - false -> %% enough available in sleepy, don't touch lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, Sleepy1, Mixed, Req), - State #state { available_tokens = Avail + (Req - ReqRem), - mixed_queues = Mixed1, hibernate = Sleepy2 } - end; -free_upto(_Pid, _Req, State) -> - State. diff --git a/src/rabbit_queue_prefetcher.erl b/src/rabbit_queue_prefetcher.erl deleted file mode 100644 index c847848d..00000000 --- a/src/rabbit_queue_prefetcher.erl +++ /dev/null @@ -1,258 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_prefetcher). - --behaviour(gen_server2). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([publish/2, drain/1, drain_and_stop/1]). - --include("rabbit.hrl"). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(pstate, - { msg_buf, - buf_length, - target_count, - fetched_count, - queue, - queue_mref - }). - -%% The design of the prefetcher is based on the following: -%% -%% a) It must issue low-priority (-ve) requests to the disk queue for -%% the next message. -%% b) If the prefetcher is empty and the amqqueue_process -%% (mixed_queue) asks it for a message, it must exit immediately, -%% telling the mixed_queue that it is empty so that the mixed_queue -%% can then take the more efficient path and communicate with the -%% disk_queue directly -%% c) No message can accidentally be delivered twice, or lost -%% d) The prefetcher must only cause load when the disk_queue is -%% otherwise idle, and must not worsen performance in a loaded -%% situation. -%% -%% As such, it's a little tricky. It must never issue a call to the -%% disk_queue - if it did, then that could potentially block, thus -%% causing pain to the mixed_queue that needs fast answers as to -%% whether the prefetcher has prefetched content or not. It behaves as -%% follows: -%% -%% 1) disk_queue:prefetch(Q) -%% This is a low priority cast -%% -%% 2) The disk_queue may pick up the cast, at which point it'll read -%% the next message and invoke prefetcher:publish(Msg) - normal -%% priority cast. Note that in the mean time, the mixed_queue could -%% have come along, found the prefetcher empty, asked it to -%% exit. This means the effective "reply" from the disk_queue will -%% go no where. As a result, the disk_queue must perform no -%% modification to the status of the message *or the queue* - do -%% not mark the message delivered, and do not advance the queue. If -%% it did advance the queue and the msg was then lost, then the -%% queue would have lost a msg that the mixed_queue would not pick -%% up. -%% -%% 3) The prefetcher hopefully receives the call from -%% prefetcher:publish(Msg). It replies immediately, and then adds -%% to its internal queue. A cast is not sufficient here because the -%% mixed_queue could come along, drain the prefetcher, thus -%% catching the msg just sent by the disk_queue and then call -%% disk_queue:deliver(Q) which is normal priority call, which could -%% overtake a reply cast from the prefetcher to the disk queue, -%% which would result in the same message being delivered -%% twice. Thus when the disk_queue calls prefetcher:publish(Msg), -%% it is briefly blocked. However, a) the prefetcher replies -%% immediately, and b) the prefetcher should never have more than -%% one item in its mailbox anyway, so this should not cause a -%% problem to the disk_queue. -%% -%% 4) The disk_queue receives the reply, marks the msg at the head of -%% the queue Q as delivered, and advances the Q to the next msg. -%% -%% 5) If the prefetcher has not met its target then it goes back to -%% 1). Otherwise it just sits and waits for the mixed_queue to -%% drain it. -%% -%% Now at some point, the mixed_queue will come along and will call -%% prefetcher:drain() - normal priority call. The prefetcher then -%% replies with its internal queue and the length of that queue. If -%% the prefetch target was reached, the prefetcher stops normally at -%% this point. If it hasn't been reached, then the prefetcher -%% continues to hang around (it almost certainly has issued a -%% disk_queue:prefetch(Q) cast and is waiting for a reply from the -%% disk_queue). -%% -%% If the mixed_queue calls prefetcher:drain() and the prefetcher's -%% internal queue is empty then the prefetcher replies with 'empty', -%% and it exits. This informs the mixed_queue that it should from now -%% on talk directly with the disk_queue and not via the -%% prefetcher. This is more efficient and the mixed_queue will use -%% normal priority blocking calls to the disk_queue and thus get -%% better service that way. -%% -%% The prefetcher may at this point have issued a -%% disk_queue:prefetch(Q) cast which has not yet been picked up by the -%% disk_queue. This msg won't go away and the disk_queue will -%% eventually find it. However, when it does, it'll simply read the -%% next message from the queue (which could now be empty), possibly -%% populate the cache (no harm done) and try and call -%% prefetcher:publish(Msg) which will result in an error, which the -%% disk_queue catches, as the publish call is to a non-existant -%% process. However, the state of the queue and the state of the -%% message has not been altered so the mixed_queue will be able to -%% fetch this message as if it had never been prefetched. -%% -%% The only point at which the queue is advanced and the message -%% marked as delivered is when the prefetcher replies to the publish -%% call. At this point the message has been received by the prefetcher -%% and so we guarantee it will be passed to the mixed_queue when the -%% mixed_queue tries to drain the prefetcher. We must therefore ensure -%% that this msg can't also be delivered to the mixed_queue directly -%% by the disk_queue through the mixed_queue calling -%% disk_queue:deliver(Q) which is why the prefetcher:publish function -%% is a call and not a cast, thus blocking the disk_queue. -%% -%% Finally, the prefetcher is only created when the mixed_queue is -%% operating in mixed mode and it sees that the next N messages are -%% all on disk, and the queue process is about to hibernate. During -%% this phase, the mixed_queue can be asked to go back to disk_only -%% mode. When this happens, it calls prefetcher:drain_and_stop() which -%% behaves like two consecutive calls to drain() - i.e. replies with -%% all prefetched messages and causes the prefetcher to exit. -%% -%% Note there is a flaw here in that we end up marking messages which -%% have come through the prefetcher as delivered even if they don't -%% get delivered (e.g. prefetcher fetches them, then broker -%% dies). However, the alternative is that the mixed_queue must do a -%% call to the disk_queue when it effectively passes them out to the -%% rabbit_writer. This would hurt performance, and even at that stage, -%% we have no guarantee that the message will really go out of the -%% socket. What we do still have is that messages which have the -%% redelivered bit set false really are guaranteed to have not been -%% delivered already. In theory, it's possible that the disk_queue -%% calls prefetcher:publish, blocks waiting for the reply. The -%% prefetcher grabs the message, is drained, the message goes out of -%% the socket and is delivered. The broker then crashes before the -%% disk_queue processes the reply from the prefetcher, thus the fact -%% the message has been delivered is not recorded. However, this can -%% only affect a single message at a time. I.e. there is a tiny chance -%% that the first message delivered on queue recovery that has the -%% redelivery bit set false, has in fact been delivered before. - -start_link(Queue, Count) -> - gen_server2:start_link(?MODULE, [Queue, Count, self()], []). - -publish(Prefetcher, Obj = { #basic_message {}, _Size, _IsDelivered, - _AckTag, _Remaining }) -> - gen_server2:call(Prefetcher, {publish, Obj}, infinity); -publish(Prefetcher, empty) -> - gen_server2:call(Prefetcher, publish_empty, infinity). - -drain(Prefetcher) -> - gen_server2:call(Prefetcher, drain, infinity). - -drain_and_stop(Prefetcher) -> - gen_server2:call(Prefetcher, drain_and_stop, infinity). - -init([Q, Count, QPid]) -> - %% link isn't enough because the signal will not appear if the - %% queue exits normally. Thus have to use monitor. - MRef = erlang:monitor(process, QPid), - State = #pstate { msg_buf = queue:new(), - buf_length = 0, - target_count = Count, - fetched_count = 0, - queue = Q, - queue_mref = MRef - }, - ok = rabbit_disk_queue:prefetch(Q), - {ok, State, infinity, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({publish, { Msg = #basic_message {}, - _Size, IsDelivered, AckTag, _Remaining }}, - DiskQueue, State = - #pstate { fetched_count = Fetched, target_count = Target, - msg_buf = MsgBuf, buf_length = Length, queue = Q - }) -> - gen_server2:reply(DiskQueue, ok), - Timeout = if Fetched + 1 == Target -> hibernate; - true -> ok = rabbit_disk_queue:prefetch(Q), - infinity - end, - MsgBuf1 = queue:in({Msg, IsDelivered, AckTag}, MsgBuf), - {noreply, State #pstate { fetched_count = Fetched + 1, - buf_length = Length + 1, - msg_buf = MsgBuf1 }, Timeout}; -handle_call(publish_empty, _From, State) -> - %% Very odd. This could happen if the queue is deleted or purged - %% and the mixed queue fails to shut us down. - {reply, ok, State, hibernate}; -handle_call(drain, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain, _From, State = #pstate { fetched_count = Count, - target_count = Count, - msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length, finished}, State}; -handle_call(drain, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {reply, {MsgBuf, Length, continuing}, - State #pstate { msg_buf = queue:new(), buf_length = 0 }, infinity}; -handle_call(drain_and_stop, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain_and_stop, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length}, State}. - -handle_cast(Msg, State) -> - exit({unexpected_message_cast_to_prefetcher, Msg, State}). - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #pstate { queue_mref = MRef }) -> - %% this is the amqqueue_process going down, so we should go down - %% too - {stop, normal, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index f6d42e7c..e5100ccd 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -31,9 +31,7 @@ -module(rabbit_tests). --compile(export_all). - --export([all_tests/0, test_parsing/0, test_disk_queue/0]). +-export([all_tests/0, test_parsing/0]). %% Exported so the hook mechanism can call back -export([handle_hook/3, bad_handle_hook/3, extra_arg_hook/5]). @@ -50,7 +48,6 @@ test_content_prop_roundtrip(Datum, Binary) -> Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion all_tests() -> - passed = test_disk_queue(), passed = test_priority_queue(), passed = test_parsing(), passed = test_topic_matching(), @@ -78,8 +75,7 @@ test_priority_queue() -> %% 1-element priority Q Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), + {true, false, 1, [{1, foo}], [foo]} = test_priority_queue(Q1), %% 2-element same-priority Q Q2 = priority_queue:in(bar, 1, Q1), @@ -95,42 +91,6 @@ test_priority_queue() -> Q4 = priority_queue:in(foo, -1, priority_queue:new()), {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - passed. priority_queue_in_all(Q, L) -> @@ -141,6 +101,7 @@ priority_queue_out_all(Q) -> {empty, _} -> []; {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] end. + test_priority_queue(Q) -> {priority_queue:is_queue(Q), priority_queue:is_empty(Q), @@ -447,17 +408,19 @@ test_cluster_management() -> end, ClusteringSequence), - %% convert a disk node into a ram node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(start_app, []), ok = control_action(stop_app, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), - %% join a non-existing cluster as a ram node + %% attempt to join a non-existing cluster as a ram node ok = control_action(reset, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {unable_to_contact_cluster_nodes, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), SecondaryNode = rabbit_misc:localnode(hare), case net_adm:ping(SecondaryNode) of @@ -473,12 +436,11 @@ test_cluster_management2(SecondaryNode) -> NodeS = atom_to_list(node()), SecondaryNodeS = atom_to_list(SecondaryNode), - %% make a disk node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), + {error, {unable_to_join_cluster, _, _}} = + control_action(cluster, [SecondaryNodeS]), %% join cluster as a ram node ok = control_action(reset, []), @@ -491,21 +453,21 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% join non-existing cluster as a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to join non-existing cluster as a ram node + {error, _} = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), + %% turn ram node into disk node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS, NodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% convert a disk node into a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to convert a disk node into a ram node + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn a disk node into a ram node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), @@ -780,503 +742,3 @@ bad_handle_hook(_, _, _) -> bad:bad(). extra_arg_hook(Hookname, Handler, Args, Extra1, Extra2) -> handle_hook(Hookname, Handler, {Args, Extra1, Extra2}). - -test_disk_queue() -> - rdq_stop(), - rdq_virgin(), - passed = rdq_stress_gc(5000), - passed = rdq_test_startup_with_queue_gaps(), - passed = rdq_test_redeliver(), - passed = rdq_test_purge(), - passed = rdq_test_mixed_queue_modes(), - passed = rdq_test_mode_conversion_mid_txn(), - passed = rdq_test_disk_queue_modes(), - rdq_virgin(), - passed. - -benchmark_disk_queue() -> - rdq_stop(), - % unicode chars are supported properly from r13 onwards - io:format("Msg Count\t| Msg Size\t| Queue Count\t| Startup mu s\t| Publish mu s\t| Pub mu s/msg\t| Pub mu s/byte\t| Deliver mu s\t| Del mu s/msg\t| Del mu s/byte~n", []), - [begin rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSize), - timer:sleep(1000) end || % 1000 milliseconds - MsgSize <- [512, 8192, 32768, 131072], - Qs <- [[1], lists:seq(1,10)], %, lists:seq(1,100), lists:seq(1,1000)], - MsgCount <- [1024, 4096, 16384] - ], - rdq_virgin(), - ok = control_action(stop_app, []), - ok = control_action(start_app, []), - passed. - -rdq_message(MsgId, MsgBody, IsPersistent) -> - rabbit_basic:message(x, <<>>, [], MsgBody, MsgId, IsPersistent). - -rdq_match_message( - #basic_message { guid = MsgId, content = - #content { payload_fragments_rev = [MsgBody] }}, - MsgId, MsgBody, Size) when size(MsgBody) =:= Size -> - ok. - -rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSizeBytes) -> - Startup = rdq_virgin(), - rdq_start(), - QCount = length(Qs), - Msg = <<0:(8*MsgSizeBytes)>>, - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - {Publish, ok} = - timer:tc(?MODULE, rdq_time_commands, - [[fun() -> [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) - || N <- List, _ <- Qs] end, - fun() -> [ok = rabbit_disk_queue:tx_commit(Q, CommitList, []) - || Q <- Qs] end - ]]), - {Deliver, ok} = - timer:tc( - ?MODULE, rdq_time_commands, - [[fun() -> [begin SeqIds = - [begin - Remaining = MsgCount - N, - {Message, _TSize, false, SeqId, - Remaining} = rabbit_disk_queue:deliver(Q), - ok = rdq_match_message(Message, N, Msg, MsgSizeBytes), - SeqId - end || N <- List], - ok = rabbit_disk_queue:tx_commit(Q, [], SeqIds) - end || Q <- Qs] - end]]), - io:format(" ~15.10B| ~14.10B| ~14.10B| ~14.1f| ~14.1f| ~14.6f| ~14.10f| ~14.1f| ~14.6f| ~14.10f~n", - [MsgCount, MsgSizeBytes, QCount, float(Startup), - float(Publish), (Publish / (MsgCount * QCount)), - (Publish / (MsgCount * QCount * MsgSizeBytes)), - float(Deliver), (Deliver / (MsgCount * QCount)), - (Deliver / (MsgCount * QCount * MsgSizeBytes))]), - rdq_stop(). - -% we know each file is going to be 1024*1024*10 bytes in size (10MB), -% so make sure we have several files, and then keep punching holes in -% a reasonably sensible way. -rdq_stress_gc(MsgCount) -> - rdq_virgin(), - rdq_start(), - MsgSizeBytes = 256*1024, - Msg = <<0:(8*MsgSizeBytes)>>, % 256KB - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- List], - rabbit_disk_queue:tx_commit(q, CommitList, []), - StartChunk = round(MsgCount / 20), % 5% - AckList = - lists:foldl( - fun (E, Acc) -> - case lists:member(E, Acc) of - true -> Acc; - false -> [E|Acc] - end - end, [], lists:flatten( - lists:reverse( - [ lists:seq(N, MsgCount, N) - || N <- lists:seq(1, round(MsgCount / 2), 1) - ]))), - {Start, End} = lists:split(StartChunk, AckList), - AckList2 = End ++ Start, - MsgIdToSeqDict = - lists:foldl( - fun (MsgId, Acc) -> - Remaining = MsgCount - MsgId, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, MsgId, Msg, MsgSizeBytes), - dict:store(MsgId, SeqId, Acc) - end, dict:new(), List), - %% we really do want to ack each of this individually - [begin {ok, SeqId} = dict:find(MsgId, MsgIdToSeqDict), - rabbit_disk_queue:ack(q, [SeqId]) - end || MsgId <- AckList2], - rabbit_disk_queue:tx_commit(q, [], []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_startup_with_queue_gaps() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, true)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% ack every other message we have delivered (starting at the _first_) - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:ack(q, [SeqId2]), - false; - (_SeqId2, false) -> - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Acked every other message delivered done~n", []), - rdq_stop(), - rdq_start(), - io:format("Startup (with shuffle) done~n", []), - %% should have shuffled up. So we should now get - %% lists:seq(2,500,2) already delivered - Seqs2 = [begin - Remaining = round(Total - ((Half + N)/2)), - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(2,Half,2)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - io:format("Reread non-acked messages done~n", []), - %% and now fetch the rest - Seqs3 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1 + Half,Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - io:format("Read second half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_redeliver() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% now requeue every other message (starting at the _first_) - %% and ack the other ones - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:requeue(q, [{SeqId2, true}]), - false; - (SeqId2, false) -> - rabbit_disk_queue:ack(q, [SeqId2]), - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Redeliver and acking done~n", []), - %% we should now get the 2nd half in order, followed by - %% every-other-from-the-first-half - Seqs2 = [begin - Remaining = round(Total - N + (Half/2)), - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1+Half, Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - Seqs3 = [begin - Remaining = round((Half - N) / 2) - 1, - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1, Half, 2)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_purge() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - rabbit_disk_queue:purge(q), - io:format("Purge done~n", []), - rabbit_disk_queue:tx_commit(q, [], Seqs), - io:format("Ack first half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_new_mixed_queue(Q, Durable, Disk) -> - {ok, MS} = rabbit_mixed_queue:init(Q, Durable), - {MS1, _, _, _} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - case Disk of - true -> {ok, MS2} = rabbit_mixed_queue:to_disk_only_mode([], MS1), - MS2; - false -> MS1 - end. - -rdq_test_mixed_queue_modes() -> - rdq_virgin(), - rdq_start(), - Payload = <<0:(8*256)>>, - MS = rdq_new_mixed_queue(q, true, false), - MS2 = lists:foldl( - fun (_N, MS1) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS, lists:seq(1,10)), - MS4 = lists:foldl( - fun (_N, MS3) -> - Msg = (rabbit_basic:message(x, <<>>, [], Payload)) - #basic_message { is_persistent = true }, - {ok, MS3a} = rabbit_mixed_queue:publish(Msg, MS3), - MS3a - end, MS2, lists:seq(1,10)), - MS6 = lists:foldl( - fun (_N, MS5) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS5a} = rabbit_mixed_queue:publish(Msg, MS5), - MS5a - end, MS4, lists:seq(1,10)), - 30 = rabbit_mixed_queue:length(MS6), - io:format("Published a mixture of messages; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS6)]), - {ok, MS7} = rabbit_mixed_queue:to_disk_only_mode([], MS6), - 30 = rabbit_mixed_queue:length(MS7), - io:format("Converted to disk only mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS7)]), - {ok, MS8} = rabbit_mixed_queue:to_mixed_mode([], MS7), - 30 = rabbit_mixed_queue:length(MS8), - io:format("Converted to mixed mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS8)]), - MS10 = - lists:foldl( - fun (N, MS9) -> - Rem = 30 - N, - {{#basic_message { is_persistent = false }, - false, _AckTag, Rem}, - MS9a} = rabbit_mixed_queue:deliver(MS9), - MS9a - end, MS8, lists:seq(1,10)), - 20 = rabbit_mixed_queue:length(MS10), - io:format("Delivered initial non persistent messages~n"), - {ok, MS11} = rabbit_mixed_queue:to_disk_only_mode([], MS10), - 20 = rabbit_mixed_queue:length(MS11), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS12 = rdq_new_mixed_queue(q, true, false), - 10 = rabbit_mixed_queue:length(MS12), - io:format("Recovered queue~n"), - {MS14, AckTags} = - lists:foldl( - fun (N, {MS13, AcksAcc}) -> - Rem = 10 - N, - {{Msg = #basic_message { is_persistent = true }, - false, AckTag, Rem}, - MS13a} = rabbit_mixed_queue:deliver(MS13), - {MS13a, [{Msg, AckTag} | AcksAcc]} - end, {MS12, []}, lists:seq(1,10)), - 0 = rabbit_mixed_queue:length(MS14), - {ok, MS15} = rabbit_mixed_queue:ack(AckTags, MS14), - io:format("Delivered and acked all messages~n"), - {ok, MS16} = rabbit_mixed_queue:to_disk_only_mode([], MS15), - 0 = rabbit_mixed_queue:length(MS16), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS17 = rdq_new_mixed_queue(q, true, false), - 0 = rabbit_mixed_queue:length(MS17), - {MS17,0,0,0} = rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS17), - io:format("Recovered queue~n"), - rdq_stop(), - passed. - -rdq_test_mode_conversion_mid_txn() -> - Payload = <<0:(8*256)>>, - MsgIdsA = lists:seq(0,9), - MsgsA = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsA ], - MsgIdsB = lists:seq(10,20), - MsgsB = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsB ], - - rdq_virgin(), - rdq_start(), - MS0 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS0, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, commit), - - rdq_stop_virgin_start(), - MS1 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS1, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, cancel), - - - rdq_stop_virgin_start(), - MS2 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS2, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, commit), - - rdq_stop_virgin_start(), - MS3 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS3, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, cancel), - - rdq_stop(), - passed. - -rdq_tx_publish_mixed_alter_commit_get(MS0, MsgsA, MsgsB, ChangeFun, CommitOrCancel) -> - 0 = rabbit_mixed_queue:length(MS0), - MS2 = lists:foldl( - fun (Msg, MS1) -> - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS0, MsgsA), - Len0 = length(MsgsA), - Len0 = rabbit_mixed_queue:length(MS2), - MS4 = lists:foldl( - fun (Msg, MS3) -> - {ok, MS3a} = rabbit_mixed_queue:tx_publish(Msg, MS3), - MS3a - end, MS2, MsgsB), - Len0 = rabbit_mixed_queue:length(MS4), - {ok, MS5} = ChangeFun(MsgsB, MS4), - Len0 = rabbit_mixed_queue:length(MS5), - {ok, MS9} = - case CommitOrCancel of - commit -> - {ok, MS6} = rabbit_mixed_queue:tx_commit(MsgsB, [], MS5), - Len1 = Len0 + length(MsgsB), - Len1 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len1 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA ++ MsgsB), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8); - cancel -> - {ok, MS6} = rabbit_mixed_queue:tx_cancel(MsgsB, MS5), - Len0 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len0 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8) - end, - 0 = rabbit_mixed_queue:length(MS9), - Msg = rdq_message(0, <<0:256>>, false), - {ok, AckTag, MS10} = rabbit_mixed_queue:publish_delivered(Msg, MS9), - {ok,MS11} = rabbit_mixed_queue:ack([{Msg, AckTag}], MS10), - 0 = rabbit_mixed_queue:length(MS11), - passed. - -rdq_test_disk_queue_modes() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half1 = lists:seq(1,round(Total/2)), - Half2 = lists:seq(1 + round(Total/2), Total), - CommitHalf1 = lists:zip(Half1, lists:duplicate(round(Total/2), false)), - CommitHalf2 = lists:zip(Half2, lists:duplicate - (Total - round(Total/2), false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half1], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf1, []), - io:format("Publish done~n", []), - ok = rabbit_disk_queue:to_disk_only_mode(), - io:format("To Disk Only done~n", []), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half2], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf2, []), - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half1], - io:format("Deliver first half done~n", []), - ok = rabbit_disk_queue:to_ram_disk_mode(), - io:format("To RAM Disk done~n", []), - Seqs2 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half2], - io:format("Deliver second half done~n", []), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs), - ok = rabbit_disk_queue:to_disk_only_mode(), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs2), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_time_commands(Funcs) -> - lists:foreach(fun (F) -> F() end, Funcs). - -rdq_virgin() -> - {Micros, {ok, _}} = - timer:tc(rabbit_disk_queue, start_link, []), - ok = rabbit_disk_queue:stop_and_obliterate(), - timer:sleep(1000), - Micros. - -rdq_start() -> - {ok, _} = rabbit_disk_queue:start_link(), - ok = rabbit_disk_queue:to_ram_disk_mode(), - ok. - -rdq_stop() -> - rabbit_disk_queue:stop(), - timer:sleep(1000). - -rdq_stop_virgin_start() -> - rdq_stop(), - rdq_virgin(), - rdq_start(). -- cgit v1.2.1 From 8c0c8d5f98dd7b4e4ce189bd2e36c8a61118dce2 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Tue, 18 Aug 2009 05:55:25 +0100 Subject: remove spurious changes --- src/priority_queue.erl | 2 +- src/rabbit_tests.erl | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 0c777471..c74b39a9 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -73,7 +73,7 @@ -spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). -spec(in/2 :: (any(), pqueue()) -> pqueue()). -spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {(empty | {value, any()}), pqueue()}). +-spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). -spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). -endif. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index fbb2b756..e180b82c 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -138,6 +138,7 @@ priority_queue_out_all(Q) -> {empty, _} -> []; {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] end. + test_priority_queue(Q) -> {priority_queue:is_queue(Q), priority_queue:is_empty(Q), -- cgit v1.2.1 From 159980c09f74f959644d184fba304dec126ba0f3 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Tue, 18 Aug 2009 07:08:29 +0100 Subject: revert spurious change --- src/rabbit_mnesia.erl | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 26c8fbe2..a4b51a20 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -186,8 +186,7 @@ ensure_mnesia_not_running() -> check_schema_integrity() -> %%TODO: more thorough checks - case catch [mnesia:table_info(Tab, version) - || Tab <- table_names()] of + case catch [mnesia:table_info(Tab, version) || Tab <- table_names()] of {'EXIT', Reason} -> {error, Reason}; _ -> ok end. -- cgit v1.2.1 From 3aaa11e747bdff84c9d3707b92be705784f16ff9 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 11:08:27 +0100 Subject: Matthew made a mess --- Makefile | 7 +- include/rabbit.hrl | 8 +- scripts/rabbitmq-server | 3 +- scripts/rabbitmq-server.bat | 3 +- scripts/rabbitmq-service.bat | 3 +- src/priority_queue.erl | 42 +-- src/rabbit.erl | 16 +- src/rabbit_alarm.erl | 52 ++-- src/rabbit_amqqueue.erl | 88 +++--- src/rabbit_amqqueue_process.erl | 568 ++++++++++++++++++--------------------- src/rabbit_basic.erl | 17 +- src/rabbit_channel.erl | 7 +- src/rabbit_control.erl | 22 +- src/rabbit_guid.erl | 22 +- src/rabbit_memsup_linux.erl | 99 +++++-- src/rabbit_misc.erl | 40 +-- src/rabbit_mnesia.erl | 93 +++---- src/rabbit_tests.erl | 582 ++-------------------------------------- 18 files changed, 472 insertions(+), 1200 deletions(-) diff --git a/Makefile b/Makefile index 05464ca1..c3b0c598 100644 --- a/Makefile +++ b/Makefile @@ -20,10 +20,10 @@ PYTHON=python ifndef USE_SPECS # our type specs rely on features / bug fixes in dialyzer that are -# only available in R13B upwards (R13B is eshell 5.7.1) +# only available in R12B-3 upwards # # NB: the test assumes that version number will only contain single digits -USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.0" ]; then echo "true"; else echo "false"; fi) +USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.6.2" ]; then echo "true"; else echo "false"; fi) endif #other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests @@ -101,8 +101,7 @@ run-tests: all start-background-node: $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server ; sleep 1 + ./scripts/rabbitmq-server -detached; sleep 1 start-rabbit-on-node: all echo "rabbit:start()." | $(ERL_CALL) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 0ba31cb5..784c21b3 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -62,10 +62,7 @@ -record(listener, {node, protocol, host, port}). --record(basic_message, {exchange_name, routing_key, content, - guid, is_persistent}). - --record(dq_msg_loc, {queue_and_seq_id, is_delivered, msg_id}). +-record(basic_message, {exchange_name, routing_key, content, persistent_key}). -record(delivery, {mandatory, immediate, txn, sender, message}). @@ -137,8 +134,7 @@ #basic_message{exchange_name :: exchange_name(), routing_key :: routing_key(), content :: content(), - guid :: guid(), - is_persistent :: bool()}). + persistent_key :: maybe(pkey())}). -type(message() :: basic_message()). -type(delivery() :: #delivery{mandatory :: bool(), diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index f802ec4c..547220b4 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -105,9 +105,8 @@ exec erl \ -os_mon start_memsup false \ -os_mon start_os_sup false \ -os_mon memsup_system_only true \ - -os_mon system_memory_high_watermark 0.8 \ + -os_mon system_memory_high_watermark 0.95 \ -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - -mnesia dump_log_write_threshold 10000 \ ${RABBITMQ_CLUSTER_CONFIG_OPTION} \ ${RABBITMQ_SERVER_START_ARGS} \ "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 3b6e4938..b4868841 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -134,9 +134,8 @@ if exist "%RABBITMQ_EBIN_ROOT%\rabbit.boot" ( -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat index 82aa4d5c..29be1742 100755 --- a/scripts/rabbitmq-service.bat +++ b/scripts/rabbitmq-service.bat @@ -175,9 +175,8 @@ set ERLANG_SERVICE_ARGUMENTS= ^ -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.8 ^ +-os_mon system_memory_high_watermark 0.95 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 0c777471..732757c4 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -55,8 +55,7 @@ -module(priority_queue). --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). +-export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, out/1]). %%---------------------------------------------------------------------------- @@ -73,8 +72,7 @@ -spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). -spec(in/2 :: (any(), pqueue()) -> pqueue()). -spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {(empty | {value, any()}), pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). +-spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). -endif. @@ -149,42 +147,6 @@ out({pqueue, [{P, Q} | Queues]}) -> end, {R, NewQ}. -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - r2f([]) -> {queue, [], []}; r2f([_] = R) -> {queue, [], R}; r2f([X,Y]) -> {queue, [X], [Y]}; diff --git a/src/rabbit.erl b/src/rabbit.erl index 88c60eb9..b0d62b5a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -139,8 +139,6 @@ start(normal, []) -> {ok, MemoryAlarms} = application:get_env(memory_alarms), ok = rabbit_alarm:start(MemoryAlarms), - - ok = start_child(rabbit_queue_mode_manager), ok = rabbit_binary_generator: check_empty_content_body_frame_size(), @@ -148,19 +146,15 @@ start(normal, []) -> ok = start_child(rabbit_router), ok = start_child(rabbit_node_monitor) end}, - {"disk queue", - fun () -> - ok = start_child(rabbit_disk_queue) - end}, {"recovery", fun () -> ok = maybe_insert_default_data(), ok = rabbit_exchange:recover(), - {ok, DurableQueues} = rabbit_amqqueue:recover(), - DurableQueueNames = - sets:from_list([ Q #amqqueue.name || Q <- DurableQueues ]), - ok = rabbit_disk_queue:delete_non_durable_queues( - DurableQueueNames) + ok = rabbit_amqqueue:recover() + end}, + {"persister", + fun () -> + ok = start_child(rabbit_persister) end}, {"guid generator", fun () -> diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 309c9a0e..21999f16 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -41,7 +41,7 @@ -define(MEMSUP_CHECK_INTERVAL, 1000). %% OSes on which we know memory alarms to be trustworthy --define(SUPPORTED_OS, [{unix, linux}, {unix, darwin}]). +-define(SUPPORTED_OS, [{unix, linux}]). -record(alarms, {alertees, system_memory_high_watermark = false}). @@ -136,35 +136,33 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- start_memsup() -> - {Mod, Args} = - case os:type() of - %% memsup doesn't take account of buffers or cache when - %% considering "free" memory - therefore on Linux we can - %% get memory alarms very easily without any pressure - %% existing on memory at all. Therefore we need to use - %% our own simple memory monitor. - %% - {unix, linux} -> {rabbit_memsup, [rabbit_memsup_linux]}; - {unix, darwin} -> {rabbit_memsup, [rabbit_memsup_darwin]}; - - %% Start memsup programmatically rather than via the - %% rabbitmq-server script. This is not quite the right - %% thing to do as os_mon checks to see if memsup is - %% available before starting it, but as memsup is - %% available everywhere (even on VXWorks) it should be - %% ok. - %% - %% One benefit of the programmatic startup is that we - %% can add our alarm_handler before memsup is running, - %% thus ensuring that we notice memory alarms that go - %% off on startup. - %% - _ -> {memsup, []} - end, + Mod = case os:type() of + %% memsup doesn't take account of buffers or cache when + %% considering "free" memory - therefore on Linux we can + %% get memory alarms very easily without any pressure + %% existing on memory at all. Therefore we need to use + %% our own simple memory monitor. + %% + {unix, linux} -> rabbit_memsup_linux; + + %% Start memsup programmatically rather than via the + %% rabbitmq-server script. This is not quite the right + %% thing to do as os_mon checks to see if memsup is + %% available before starting it, but as memsup is + %% available everywhere (even on VXWorks) it should be + %% ok. + %% + %% One benefit of the programmatic startup is that we + %% can add our alarm_handler before memsup is running, + %% thus ensuring that we notice memory alarms that go + %% off on startup. + %% + _ -> memsup + end, %% This is based on os_mon:childspec(memsup, true) {ok, _} = supervisor:start_child( os_mon_sup, - {memsup, {Mod, start_link, Args}, + {memsup, {Mod, start_link, []}, permanent, 2000, worker, [Mod]}), ok. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 62ea465d..4903c2c5 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,6 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/3, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -63,7 +62,7 @@ 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). -spec(start/0 :: () -> 'ok'). --spec(recover/0 :: () -> {'ok', [amqqueue()]}). +-spec(recover/0 :: () -> 'ok'). -spec(declare/4 :: (queue_name(), bool(), bool(), amqp_table()) -> amqqueue()). -spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). @@ -102,13 +101,10 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). --spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). --spec(report_memory/1 :: (pid()) -> 'ok'). -endif. @@ -123,42 +119,37 @@ start() -> ok. recover() -> - {ok, DurableQueues} = recover_durable_queues(), - {ok, DurableQueues}. + ok = recover_durable_queues(), + ok. recover_durable_queues() -> Node = node(), - DurableQueues = - lists:foldl( - fun (RecoveredQ, Acc) -> - Q = start_queue_process(RecoveredQ), - %% We need to catch the case where a client connected to - %% another node has deleted the queue (and possibly - %% re-created it). - case rabbit_misc:execute_mnesia_transaction( - fun () -> - Match = - mnesia:match_object( - rabbit_durable_queue, RecoveredQ, read), - case Match of - [_] -> ok = store_queue(Q), - true; - [] -> false - end - end) of - true -> [Q|Acc]; - false -> exit(Q#amqqueue.pid, shutdown), - Acc - end - end, [], - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end)), - {ok, DurableQueues}. + lists:foreach( + fun (RecoveredQ) -> + Q = start_queue_process(RecoveredQ), + %% We need to catch the case where a client connected to + %% another node has deleted the queue (and possibly + %% re-created it). + case rabbit_misc:execute_mnesia_transaction( + fun () -> case mnesia:match_object( + rabbit_durable_queue, RecoveredQ, read) of + [_] -> ok = store_queue(Q), + true; + [] -> false + end + end) of + true -> ok; + false -> exit(Q#amqqueue.pid, shutdown) + end + end, + %% TODO: use dirty ops instead + rabbit_misc:execute_mnesia_transaction( + fun () -> + qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} + <- mnesia:table(rabbit_durable_queue), + node(Pid) == Node])) + end)), + ok. declare(QueueName, Durable, AutoDelete, Args) -> Q = start_queue_process(#amqqueue{name = QueueName, @@ -225,23 +216,6 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). -set_mode_pin(VHostPath, Queue, Disk) - when is_binary(VHostPath) andalso is_binary(Queue) -> - with(rabbit_misc:r(VHostPath, queue, Queue), - fun(Q) -> case Disk of - true -> rabbit_queue_mode_manager:pin_to_disk - (Q #amqqueue.pid); - false -> rabbit_queue_mode_manager:unpin_from_disk - (Q #amqqueue.pid) - end - end). - -set_mode(QPid, Mode) -> - gen_server2:pcast(QPid, 10, {set_mode, Mode}). - -report_memory(QPid) -> - gen_server2:cast(QPid, report_memory). - info(#amqqueue{ pid = QPid }) -> gen_server2:pcall(QPid, 9, info, infinity). @@ -329,10 +303,10 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> infinity). notify_sent(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {notify_sent, ChPid}). + gen_server2:cast(QPid, {notify_sent, ChPid}). unblock(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {unblock, ChPid}). + gen_server2:cast(QPid, {unblock, ChPid}). internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 14a0370d..fe2e8509 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -38,12 +38,10 @@ -define(UNSENT_MESSAGE_LIMIT, 100). -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds -export([start_link/1]). --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1]). +-export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]). -import(queue). -import(erlang). @@ -54,12 +52,10 @@ owner, exclusive_consumer, has_had_consumers, - mixed_state, next_msg_id, + message_buffer, active_consumers, - blocked_consumers, - memory_report_timer - }). + blocked_consumers}). -record(consumer, {tag, ack_required}). @@ -88,9 +84,7 @@ acks_uncommitted, consumers, transactions, - memory, - mode - ]). + memory]). %%---------------------------------------------------------------------------- @@ -99,35 +93,24 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable }) -> +init(Q) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), - ok = rabbit_queue_mode_manager:register - (self(), false, rabbit_amqqueue, set_mode, [self()]), - {ok, MS} = rabbit_mixed_queue:init(QName, Durable), - State = #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - mixed_state = MS, - next_msg_id = 1, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - memory_report_timer = undefined - }, - %% first thing we must do is report_memory which will clear out - %% the 'undefined' values in gain and loss in mixed_queue state - {ok, start_memory_timer(State), hibernate, + {ok, #q{q = Q, + owner = none, + exclusive_consumer = none, + has_had_consumers = false, + next_msg_id = 1, + message_buffer = queue:new(), + active_consumers = queue:new(), + blocked_consumers = queue:new()}, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. terminate(_Reason, State) -> %% FIXME: How do we cancel active subscriptions? QName = qname(State), - NewState = - lists:foldl(fun (Txn, State1) -> - rollback_transaction(Txn, State1) - end, State, all_tx()), - rabbit_mixed_queue:delete_queue(NewState #q.mixed_state), - stop_memory_timer(NewState), + lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, + all_tx()), + ok = purge_message_buffer(QName, State#q.message_buffer), ok = rabbit_amqqueue:internal_delete(QName). code_change(_OldVsn, State, _Extra) -> @@ -135,24 +118,9 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- -reply(Reply, NewState) -> - {reply, Reply, start_memory_timer(NewState), hibernate}. +reply(Reply, NewState) -> {reply, Reply, NewState, hibernate}. -noreply(NewState) -> - {noreply, start_memory_timer(NewState), hibernate}. - -start_memory_timer(State = #q { memory_report_timer = undefined }) -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_amqqueue, report_memory, [self()]), - report_memory(false, State #q { memory_report_timer = TRef }); -start_memory_timer(State) -> - State. - -stop_memory_timer(State = #q { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #q { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #q { memory_report_timer = undefined }. +noreply(NewState) -> {noreply, NewState, hibernate}. lookup_ch(ChPid) -> case get({ch, ChPid}) of @@ -199,11 +167,12 @@ record_current_channel_tx(ChPid, Txn) -> %% that wasn't happening already) store_ch_record((ch_record(ChPid))#cr{txn = Txn}). -deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers, - next_msg_id = NextId}) -> +deliver_immediately(Message, Delivered, + State = #q{q = #amqqueue{name = QName}, + active_consumers = ActiveConsumers, + blocked_consumers = BlockedConsumers, + next_msg_id = NextId}) -> + ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), case queue:out(ActiveConsumers) of {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, ack_required = AckRequired}}}, @@ -211,21 +180,15 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, C = #cr{limiter_pid = LimiterPid, unsent_message_count = Count, unacked_messages = UAM} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of + case rabbit_limiter:can_send(LimiterPid, self(), AckRequired) of true -> - {{Msg, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Msg]), rabbit_channel:deliver( ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, IsDelivered, Msg}), - NewUAM = - case AckRequired of - true -> dict:store(NextId, {Msg, AckTag}, UAM); - false -> UAM - end, + {QName, self(), NextId, Delivered, Message}), + NewUAM = case AckRequired of + true -> dict:store(NextId, Message, UAM); + false -> UAM + end, NewC = C#cr{unsent_message_count = Count + 1, unacked_messages = NewUAM}, store_ch_record(NewC), @@ -241,113 +204,54 @@ deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, {ActiveConsumers1, queue:in(QEntry, BlockedConsumers1)} end, - State2 = State1 #q { - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers, - next_msg_id = NextId + 1 - }, - deliver_queue(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> + {offered, AckRequired, + State#q{active_consumers = NewActiveConsumers, + blocked_consumers = NewBlockedConsumers, + next_msg_id = NextId + 1}}; + false -> store_ch_record(C#cr{is_limit_active = true}), {NewActiveConsumers, NewBlockedConsumers} = move_consumers(ChPid, ActiveConsumers, BlockedConsumers), - deliver_queue( - Funs, FunAcc, + deliver_immediately( + Message, Delivered, State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} + blocked_consumers = NewBlockedConsumers}) end; {empty, _} -> - {FunAcc, State} + {not_offered, State} end. -deliver_from_queue_pred({IsEmpty, _AutoAcks}, _State) -> - not IsEmpty. -deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, - State = #q { mixed_state = MS }) -> - {{Msg, IsDelivered, AckTag, Remaining}, MS1} = - rabbit_mixed_queue:deliver(MS), - AutoAcks1 = - case AckRequired of - true -> AutoAcks; - false -> [{Msg, AckTag} | AutoAcks] - end, - {{Msg, IsDelivered, AckTag}, {0 == Remaining, AutoAcks1}, - State #q { mixed_state = MS1 }}. - -run_message_queue(State = #q { mixed_state = MS }) -> - Funs = { fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3 }, - IsEmpty = rabbit_mixed_queue:is_empty(MS), - {{_IsEmpty1, AutoAcks}, State1} = - deliver_queue(Funs, {IsEmpty, []}, State), - {ok, MS1} = - rabbit_mixed_queue:ack(AutoAcks, State1 #q.mixed_state), - State1 #q { mixed_state = MS1 }. - -attempt_immediate_delivery(none, _ChPid, Msg, State) -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1) -> - {AckTag, State2} = - case AckRequired of - true -> - {ok, AckTag1, MS} = - rabbit_mixed_queue:publish_delivered( - Msg, State1 #q.mixed_state), - {AckTag1, State1 #q { mixed_state = MS }}; - false -> - {noack, State1} - end, - {{Msg, false, AckTag}, true, State2} - end, - deliver_queue({ PredFun, DeliverFun }, false, State); -attempt_immediate_delivery(Txn, ChPid, Msg, State) -> - {ok, MS} = rabbit_mixed_queue:tx_publish(Msg, State #q.mixed_state), - record_pending_message(Txn, ChPid, Msg), - {true, State #q { mixed_state = MS }}. - -deliver_or_enqueue(Txn, ChPid, Msg, State) -> - case attempt_immediate_delivery(Txn, ChPid, Msg, State) of +attempt_delivery(none, _ChPid, Message, State) -> + case deliver_immediately(Message, false, State) of + {offered, false, State1} -> + {true, State1}; + {offered, true, State1} -> + persist_message(none, qname(State), Message), + persist_delivery(qname(State), Message, false), + {true, State1}; + {not_offered, State1} -> + {false, State1} + end; +attempt_delivery(Txn, ChPid, Message, State) -> + persist_message(Txn, qname(State), Message), + record_pending_message(Txn, ChPid, Message), + {true, State}. + +deliver_or_enqueue(Txn, ChPid, Message, State) -> + case attempt_delivery(Txn, ChPid, Message, State) of {true, NewState} -> {true, NewState}; {false, NewState} -> - %% Txn is none and no unblocked channels with consumers - {ok, MS} = rabbit_mixed_queue:publish(Msg, State #q.mixed_state), - {false, NewState #q { mixed_state = MS }} - end. - -%% all these messages have already been delivered at least once and -%% not ack'd, but need to be either redelivered or requeued -deliver_or_requeue_n([], State) -> - run_message_queue(State); -deliver_or_requeue_n(MsgsWithAcks, State) -> - Funs = { fun deliver_or_requeue_msgs_pred/2, - fun deliver_or_requeue_msgs_deliver/3 }, - {{_RemainingLengthMinusOne, AutoAcks, OutstandingMsgs}, NewState} = - deliver_queue(Funs, {length(MsgsWithAcks) - 1, [], MsgsWithAcks}, - State), - {ok, MS} = rabbit_mixed_queue:ack(AutoAcks, - NewState #q.mixed_state), - case OutstandingMsgs of - [] -> run_message_queue(NewState #q { mixed_state = MS }); - _ -> {ok, MS1} = rabbit_mixed_queue:requeue(OutstandingMsgs, MS), - NewState #q { mixed_state = MS1 } + persist_message(Txn, qname(State), Message), + NewMB = queue:in({Message, false}, NewState#q.message_buffer), + {false, NewState#q{message_buffer = NewMB}} end. -deliver_or_requeue_msgs_pred({Len, _AcksAcc, _MsgsWithAcks}, _State) -> - -1 < Len. -deliver_or_requeue_msgs_deliver( - false, {Len, AcksAcc, [(MsgAckTag = {Msg, _}) | MsgsWithAcks]}, State) -> - {{Msg, true, noack}, {Len - 1, [MsgAckTag | AcksAcc], MsgsWithAcks}, State}; -deliver_or_requeue_msgs_deliver( - true, {Len, AcksAcc, [{Msg, AckTag} | MsgsWithAcks]}, State) -> - {{Msg, true, AckTag}, {Len - 1, AcksAcc, MsgsWithAcks}, State}. +deliver_or_enqueue_n(Messages, State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(queue:join(MessageBuffer, queue:from_list(Messages)), + State). add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). @@ -381,7 +285,7 @@ possibly_unblock(State, ChPid, Update) -> move_consumers(ChPid, State#q.blocked_consumers, State#q.active_consumers), - run_message_queue( + run_poke_burst( State#q{active_consumers = NewActiveConsumers, blocked_consumers = NewBlockedeConsumers}) end @@ -398,27 +302,27 @@ handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> unacked_messages = UAM} -> erlang:demonitor(MonitorRef), erase({ch, ChPid}), - State1 = - case Txn of - none -> State; - _ -> rollback_transaction(Txn, State) - end, - State2 = - deliver_or_requeue_n( - [MsgWithAck || - {_MsgId, MsgWithAck} <- dict:to_list(UAM)], - State1 #q { + case Txn of + none -> ok; + _ -> ok = rollback_work(Txn, qname(State)), + erase_tx(Txn) + end, + NewState = + deliver_or_enqueue_n( + [{Message, true} || + {_Messsage_id, Message} <- dict:to_list(UAM)], + State#q{ exclusive_consumer = case Holder of {ChPid, _} -> none; Other -> Other end, active_consumers = remove_consumers( - ChPid, State1#q.active_consumers), + ChPid, State#q.active_consumers), blocked_consumers = remove_consumers( - ChPid, State1#q.blocked_consumers)}), - case should_auto_delete(State2) of - false -> noreply(State2); - true -> {stop, normal, State2} + ChPid, State#q.blocked_consumers)}), + case should_auto_delete(NewState) of + false -> noreply(NewState); + true -> {stop, normal, NewState} end end. @@ -441,6 +345,26 @@ check_exclusive_access(none, true, State) -> false -> in_use end. +run_poke_burst(State = #q{message_buffer = MessageBuffer}) -> + run_poke_burst(MessageBuffer, State). + +run_poke_burst(MessageBuffer, State) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> + case deliver_immediately(Message, Delivered, State) of + {offered, true, NewState} -> + persist_delivery(qname(State), Message, Delivered), + run_poke_burst(BufferTail, NewState); + {offered, false, NewState} -> + persist_auto_ack(qname(State), Message), + run_poke_burst(BufferTail, NewState); + {not_offered, NewState} -> + NewState#q{message_buffer = MessageBuffer} + end; + {empty, _} -> + State#q{message_buffer = MessageBuffer} + end. + is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso queue:is_empty(State#q.blocked_consumers). @@ -449,6 +373,62 @@ maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). qname(#q{q = #amqqueue{name = QName}}) -> QName. +persist_message(_Txn, _QName, #basic_message{persistent_key = none}) -> + ok; +persist_message(Txn, QName, Message) -> + M = Message#basic_message{ + %% don't persist any recoverable decoded properties, rebuild from properties_bin on restore + content = rabbit_binary_parser:clear_decoded_content( + Message#basic_message.content)}, + persist_work(Txn, QName, + [{publish, M, {QName, M#basic_message.persistent_key}}]). + +persist_delivery(_QName, _Message, + true) -> + ok; +persist_delivery(_QName, #basic_message{persistent_key = none}, + _Delivered) -> + ok; +persist_delivery(QName, #basic_message{persistent_key = PKey}, + _Delivered) -> + persist_work(none, QName, [{deliver, {QName, PKey}}]). + +persist_acks(Txn, QName, Messages) -> + persist_work(Txn, QName, + [{ack, {QName, PKey}} || + #basic_message{persistent_key = PKey} <- Messages, + PKey =/= none]). + +persist_auto_ack(_QName, #basic_message{persistent_key = none}) -> + ok; +persist_auto_ack(QName, #basic_message{persistent_key = PKey}) -> + %% auto-acks are always non-transactional + rabbit_persister:dirty_work([{ack, {QName, PKey}}]). + +persist_work(_Txn,_QName, []) -> + ok; +persist_work(none, _QName, WorkList) -> + rabbit_persister:dirty_work(WorkList); +persist_work(Txn, QName, WorkList) -> + mark_tx_persistent(Txn), + rabbit_persister:extend_transaction({Txn, QName}, WorkList). + +commit_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:commit_transaction/1, + Txn, QName). + +rollback_work(Txn, QName) -> + do_if_persistent(fun rabbit_persister:rollback_transaction/1, + Txn, QName). + +%% optimisation: don't do unnecessary work +%% it would be nice if this was handled by the persister +do_if_persistent(F, Txn, QName) -> + case is_tx_persistent(Txn) of + false -> ok; + true -> ok = F({Txn, QName}) + end. + lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx{ch_pid = none, @@ -470,14 +450,19 @@ all_tx_record() -> all_tx() -> [Txn || {{txn, Txn}, _} <- get()]. -record_pending_message(Txn, ChPid, Message = - #basic_message { is_persistent = IsPersistent }) -> - Tx = #tx{pending_messages = Pending, is_persistent = IsPersistentTxn } = - lookup_tx(Txn), +mark_tx_persistent(Txn) -> + Tx = lookup_tx(Txn), + store_tx(Txn, Tx#tx{is_persistent = true}). + +is_tx_persistent(Txn) -> + #tx{is_persistent = Res} = lookup_tx(Txn), + Res. + +record_pending_message(Txn, ChPid, Message) -> + Tx = #tx{pending_messages = Pending} = lookup_tx(Txn), record_current_channel_tx(ChPid, Txn), - store_tx(Txn, Tx #tx { pending_messages = [Message | Pending], - is_persistent = IsPersistentTxn orelse IsPersistent - }). + store_tx(Txn, Tx#tx{pending_messages = [{Message, false} | Pending], + ch_pid = ChPid}). record_pending_acks(Txn, ChPid, MsgIds) -> Tx = #tx{pending_acks = Pending} = lookup_tx(Txn), @@ -485,53 +470,48 @@ record_pending_acks(Txn, ChPid, MsgIds) -> store_tx(Txn, Tx#tx{pending_acks = [MsgIds | Pending], ch_pid = ChPid}). -commit_transaction(Txn, State) -> - #tx { ch_pid = ChPid, - pending_messages = PendingMessages, - pending_acks = PendingAcks - } = lookup_tx(Txn), - PendingMessagesOrdered = lists:reverse(PendingMessages), - PendingAcksOrdered = lists:append(PendingAcks), - Acks = - case lookup_ch(ChPid) of - not_found -> []; - C = #cr { unacked_messages = UAM } -> - {MsgWithAcks, Remaining} = - collect_messages(PendingAcksOrdered, UAM), - store_ch_record(C#cr{unacked_messages = Remaining}), - MsgWithAcks - end, - {ok, MS} = rabbit_mixed_queue:tx_commit( - PendingMessagesOrdered, Acks, State #q.mixed_state), - State #q { mixed_state = MS }. - -rollback_transaction(Txn, State) -> - #tx { pending_messages = PendingMessages - } = lookup_tx(Txn), - {ok, MS} = rabbit_mixed_queue:tx_cancel(PendingMessages, - State #q.mixed_state), - erase_tx(Txn), - State #q { mixed_state = MS }. +process_pending(Txn, State) -> + #tx{ch_pid = ChPid, + pending_messages = PendingMessages, + pending_acks = PendingAcks} = lookup_tx(Txn), + case lookup_ch(ChPid) of + not_found -> ok; + C = #cr{unacked_messages = UAM} -> + {_Acked, Remaining} = + collect_messages(lists:append(PendingAcks), UAM), + store_ch_record(C#cr{unacked_messages = Remaining}) + end, + deliver_or_enqueue_n(lists:reverse(PendingMessages), State). -%% {A, B} = collect_messages(C, D) %% A = C `intersect` D; B = D \\ C -%% err, A = C `intersect` D , via projection through the dict that is C collect_messages(MsgIds, UAM) -> lists:mapfoldl( fun (MsgId, D) -> {dict:fetch(MsgId, D), dict:erase(MsgId, D)} end, UAM, MsgIds). +purge_message_buffer(QName, MessageBuffer) -> + Messages = + [[Message || {Message, _Delivered} <- + queue:to_list(MessageBuffer)] | + lists:map( + fun (#cr{unacked_messages = UAM}) -> + [Message || {_MessageId, Message} <- dict:to_list(UAM)] + end, + all_ch_record())], + %% the simplest, though certainly not the most obvious or + %% efficient, way to purge messages from the persister is to + %% artifically ack them. + persist_acks(none, QName, lists:append(Messages)). + infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. i(name, #q{q = #amqqueue{name = Name}}) -> Name; i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(mode, #q{ mixed_state = MS }) -> - rabbit_mixed_queue:info(MS); i(pid, _) -> self(); -i(messages_ready, #q { mixed_state = MS }) -> - rabbit_mixed_queue:length(MS); +i(messages_ready, #q{message_buffer = MessageBuffer}) -> + queue:len(MessageBuffer); i(messages_unacknowledged, _) -> lists:sum([dict:size(UAM) || #cr{unacked_messages = UAM} <- all_ch_record()]); @@ -555,12 +535,6 @@ i(memory, _) -> i(Item, _) -> throw({bad_argument, Item}). -report_memory(Hib, State = #q { mixed_state = MS }) -> - {MS1, MSize, Gain, Loss} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - rabbit_queue_mode_manager:report_memory(self(), MSize, Gain, Loss, Hib), - State #q { mixed_state = MS1 }. - %--------------------------------------------------------------------------- handle_call(info, _From, State) -> @@ -586,8 +560,7 @@ handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> %% just all ready-to-consume queues get the message, with unready %% queues discarding the message? %% - {Delivered, NewState} = - attempt_immediate_delivery(Txn, ChPid, Message, State), + {Delivered, NewState} = attempt_delivery(Txn, ChPid, Message, State), reply(Delivered, NewState); handle_call({deliver, Txn, Message, ChPid}, _From, State) -> @@ -596,11 +569,12 @@ handle_call({deliver, Txn, Message, ChPid}, _From, State) -> reply(Delivered, NewState); handle_call({commit, Txn}, From, State) -> - NewState = commit_transaction(Txn, State), + ok = commit_work(Txn, qname(State)), %% optimisation: we reply straight away so the sender can continue gen_server2:reply(From, ok), + NewState = process_pending(Txn, State), erase_tx(Txn), - noreply(run_message_queue(NewState)); + noreply(NewState); handle_call({notify_down, ChPid}, From, State) -> %% optimisation: we reply straight away so the sender can continue @@ -610,27 +584,25 @@ handle_call({notify_down, ChPid}, From, State) -> handle_call({basic_get, ChPid, NoAck}, _From, State = #q{q = #amqqueue{name = QName}, next_msg_id = NextId, - mixed_state = MS - }) -> - case rabbit_mixed_queue:deliver(MS) of - {empty, MS1} -> reply(empty, State #q { mixed_state = MS1 }); - {{Msg, IsDelivered, AckTag, Remaining}, MS1} -> + message_buffer = MessageBuffer}) -> + case queue:out(MessageBuffer) of + {{value, {Message, Delivered}}, BufferTail} -> AckRequired = not(NoAck), - {ok, MS3} = - case AckRequired of - true -> - C = #cr{unacked_messages = UAM} = ch_record(ChPid), - NewUAM = dict:store(NextId, {Msg, AckTag}, UAM), - store_ch_record(C#cr{unacked_messages = NewUAM}), - {ok, MS1}; - false -> - rabbit_mixed_queue:ack([{Msg, AckTag}], MS1) - end, - Message = {QName, self(), NextId, IsDelivered, Msg}, - reply({ok, Remaining, Message}, - State #q { next_msg_id = NextId + 1, - mixed_state = MS3 - }) + case AckRequired of + true -> + persist_delivery(QName, Message, Delivered), + C = #cr{unacked_messages = UAM} = ch_record(ChPid), + NewUAM = dict:store(NextId, Message, UAM), + store_ch_record(C#cr{unacked_messages = NewUAM}); + false -> + persist_auto_ack(QName, Message) + end, + Msg = {QName, self(), NextId, Delivered, Message}, + reply({ok, queue:len(BufferTail), Msg}, + State#q{message_buffer = BufferTail, + next_msg_id = NextId + 1}); + {empty, _} -> + reply(empty, State) end; handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, @@ -651,14 +623,15 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, ack_required = not(NoAck)}, store_ch_record(C#cr{consumer_count = ConsumerCount +1, limiter_pid = LimiterPid}), - case ConsumerCount of - 0 -> ok = rabbit_limiter:register(LimiterPid, self()); - _ -> ok + if ConsumerCount == 0 -> + ok = rabbit_limiter:register(LimiterPid, self()); + true -> + ok end, - ExclusiveConsumer = case ExclusiveConsume of - true -> {ChPid, ConsumerTag}; - false -> ExistingHolder - end, + ExclusiveConsumer = + if ExclusiveConsume -> {ChPid, ConsumerTag}; + true -> ExistingHolder + end, State1 = State#q{has_had_consumers = true, exclusive_consumer = ExclusiveConsumer}, ok = maybe_send_reply(ChPid, OkMsg), @@ -669,7 +642,7 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, add_consumer( ChPid, Consumer, State1#q.blocked_consumers)}; - false -> run_message_queue( + false -> run_poke_burst( State1#q{ active_consumers = add_consumer( @@ -688,10 +661,11 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, reply(ok, State); C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - ok = case ConsumerCount of - 1 -> rabbit_limiter:unregister(LimiterPid, self()); - _ -> ok - end, + if ConsumerCount == 1 -> + ok = rabbit_limiter:unregister(LimiterPid, self()); + true -> + ok + end, ok = maybe_send_reply(ChPid, OkMsg), NewState = State#q{exclusive_consumer = cancel_holder(ChPid, @@ -710,15 +684,14 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, end; handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, - mixed_state = MS, + message_buffer = MessageBuffer, active_consumers = ActiveConsumers}) -> - Length = rabbit_mixed_queue:length(MS), - reply({ok, Name, Length, queue:len(ActiveConsumers)}, State); + reply({ok, Name, queue:len(MessageBuffer), queue:len(ActiveConsumers)}, + State); handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q { mixed_state = MS }) -> - Length = rabbit_mixed_queue:length(MS), - IsEmpty = Length == 0, + State = #q{message_buffer = MessageBuffer}) -> + IsEmpty = queue:is_empty(MessageBuffer), IsUnused = is_unused(State), if IfEmpty and not(IsEmpty) -> @@ -726,16 +699,16 @@ handle_call({delete, IfUnused, IfEmpty}, _From, IfUnused and not(IsUnused) -> reply({error, in_use}, State); true -> - {stop, normal, {ok, Length}, State} + {stop, normal, {ok, queue:len(MessageBuffer)}, State} end; -handle_call(purge, _From, State) -> - {Count, MS} = rabbit_mixed_queue:purge(State #q.mixed_state), - reply({ok, Count}, - State #q { mixed_state = MS }); +handle_call(purge, _From, State = #q{message_buffer = MessageBuffer}) -> + ok = purge_message_buffer(qname(State), MessageBuffer), + reply({ok, queue:len(MessageBuffer)}, + State#q{message_buffer = queue:new()}); -handle_call({claim_queue, ReaderPid}, _From, - State = #q{owner = Owner, exclusive_consumer = Holder}) -> +handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, + exclusive_consumer = Holder}) -> case Owner of none -> case check_exclusive_access(Holder, true, State) of @@ -748,10 +721,7 @@ handle_call({claim_queue, ReaderPid}, _From, %% pid... reply(locked, State); ok -> - reply(ok, State #q { owner = - {ReaderPid, - erlang:monitor(process, ReaderPid)} }) - + reply(ok, State#q{owner = {ReaderPid, erlang:monitor(process, ReaderPid)}}) end; {ReaderPid, _MonitorRef} -> reply(ok, State); @@ -769,21 +739,24 @@ handle_cast({ack, Txn, MsgIds, ChPid}, State) -> not_found -> noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, Remaining} = collect_messages(MsgIds, UAM), + {Acked, Remaining} = collect_messages(MsgIds, UAM), + persist_acks(Txn, qname(State), Acked), case Txn of none -> - {ok, MS} = - rabbit_mixed_queue:ack(MsgWithAcks, State #q.mixed_state), - store_ch_record(C#cr{unacked_messages = Remaining}), - noreply(State #q { mixed_state = MS }); + store_ch_record(C#cr{unacked_messages = Remaining}); _ -> - record_pending_acks(Txn, ChPid, MsgIds), - noreply(State) - end + record_pending_acks(Txn, ChPid, MsgIds) + end, + noreply(State) end; handle_cast({rollback, Txn}, State) -> - noreply(rollback_transaction(Txn, State)); + ok = rollback_work(Txn, qname(State)), + erase_tx(Txn), + noreply(State); + +handle_cast({redeliver, Messages}, State) -> + noreply(deliver_or_enqueue_n(Messages, State)); handle_cast({requeue, MsgIds, ChPid}, State) -> case lookup_ch(ChPid) of @@ -792,9 +765,10 @@ handle_cast({requeue, MsgIds, ChPid}, State) -> [ChPid]), noreply(State); C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, NewUAM} = collect_messages(MsgIds, UAM), + {Messages, NewUAM} = collect_messages(MsgIds, UAM), store_ch_record(C#cr{unacked_messages = NewUAM}), - noreply(deliver_or_requeue_n(MsgWithAcks, State)) + noreply(deliver_or_enqueue_n( + [{Message, true} || Message <- Messages], State)) end; handle_cast({unblock, ChPid}, State) -> @@ -823,22 +797,7 @@ handle_cast({limit, ChPid, LimiterPid}, State) -> end, NewLimited = Limited andalso LimiterPid =/= undefined, C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> - PendingMessages = - lists:flatten([Pending || #tx { pending_messages = Pending} - <- all_tx_record()]), - {ok, MS1} = (case Mode of - disk -> fun rabbit_mixed_queue:to_disk_only_mode/2; - mixed -> fun rabbit_mixed_queue:to_mixed_mode/2 - end)(PendingMessages, MS), - noreply(State #q { mixed_state = MS1 }); - -handle_cast(report_memory, State) -> - %% deliberately don't call noreply/2 as we don't want to restart the timer - %% by unsetting the timer, we force a report on the next normal message - {noreply, State #q { memory_report_timer = undefined }, hibernate}. + end)). handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> @@ -859,10 +818,3 @@ handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> handle_info(Info, State) -> ?LOGDEBUG("Info in queue: ~p~n", [Info]), {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q { mixed_state = MS }) -> - MS1 = rabbit_mixed_queue:maybe_prefetch(MS), - State1 = - stop_memory_timer(report_memory(true, State #q { mixed_state = MS1 })), - %% don't call noreply/1 as that'll restart the memory_report_timer - {hibernate, State1}. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 8adb608f..4033aaaf 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -33,8 +33,8 @@ -include("rabbit.hrl"). -include("rabbit_framing.hrl"). --export([publish/1, message/4, message/5, message/6, delivery/4]). --export([properties/1, publish/4, publish/7]). +-export([publish/1, message/4, properties/1, delivery/4]). +-export([publish/4, publish/7]). -export([build_content/2, from_content/1]). %%---------------------------------------------------------------------------- @@ -48,10 +48,6 @@ -spec(delivery/4 :: (bool(), bool(), maybe(txn()), message()) -> delivery()). -spec(message/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> message()). --spec(message/5 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid()) -> message()). --spec(message/6 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid(), bool()) -> message()). -spec(properties/1 :: (properties_input()) -> amqp_properties()). -spec(publish/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> publish_result()). @@ -95,18 +91,11 @@ from_content(Content) -> {Props, list_to_binary(lists:reverse(FragmentsRev))}. message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, rabbit_guid:guid()). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, false). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, IsPersistent) -> Properties = properties(RawProperties), #basic_message{exchange_name = ExchangeName, routing_key = RoutingKeyBin, content = build_content(Properties, BodyBin), - guid = MsgId, - is_persistent = IsPersistent}. + persistent_key = none}. properties(P = #'P_basic'{}) -> P; diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 397659c1..16b7c938 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -317,11 +317,14 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, %% We decode the content's properties here because we're almost %% certain to want to look at delivery-mode and priority. DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), + PersistentKey = case is_message_persistent(DecodedContent) of + true -> rabbit_guid:guid(); + false -> none + end, Message = #basic_message{exchange_name = ExchangeName, routing_key = RoutingKey, content = DecodedContent, - guid = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent)}, + persistent_key = PersistentKey}, {RoutingRes, DeliveredQPids} = rabbit_exchange:publish( Exchange, diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 99bbb742..37e4d189 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,9 +137,6 @@ Available commands: list_bindings [-p ] list_connections [ ...] - pin_queue_to_disk - unpin_queue_from_disk - Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -155,8 +152,8 @@ virtual host parameter for which to display results. The default value is \"/\". must be a member of the list [name, durable, auto_delete, arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, -messages, acks_uncommitted, consumers, transactions, memory, mode]. The default -is to display name and (number of) messages. +messages, acks_uncommitted, consumers, transactions, memory]. The default is + to display name and (number of) messages. must be a member of the list [name, type, durable, auto_delete, arguments]. The default is to display name and type. @@ -169,9 +166,6 @@ peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. -pin_queue_to_disk will force a queue to be in disk mode. -unpin_queue_from_disk will permit a queue that has been pinned to disk mode -to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -286,18 +280,6 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). -action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> - Inform("Pinning queue ~p in vhost ~p to disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), true]); - -action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> - Inform("Unpinning queue ~p in vhost ~p from disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), false]); - action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl index 3aa2989a..2be00503 100644 --- a/src/rabbit_guid.erl +++ b/src/rabbit_guid.erl @@ -42,7 +42,6 @@ terminate/2, code_change/3]). -define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_guid"). -record(state, {serial}). @@ -60,24 +59,17 @@ %%---------------------------------------------------------------------------- start_link() -> + %% The persister can get heavily loaded, and we don't want that to + %% impact guid generation. We therefore keep the serial in a + %% separate process rather than calling rabbit_persister:serial/0 + %% directly in the functions below. gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(mnesia:system_info(directory), ?SERIAL_FILENAME), - Serial = case file:read_file(Filename) of - {ok, Content} -> - binary_to_term(Content); - {error, _} -> - 0 - end, - ok = file:write_file(Filename, term_to_binary(Serial + 1)), - Serial. + [rabbit_persister:serial()], []). %% generate a guid that is monotonically increasing per process. %% %% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. +%% persistent message store hasn't been deleted. guid() -> %% We don't use erlang:now() here because a) it may return %% duplicates when the system clock has been rewound prior to a @@ -85,7 +77,7 @@ guid() -> %% now() to move ahead of the system time), and b) it is really %% slow since it takes a global lock and makes a system call. %% - %% A persisted serial number, in combination with self/0 (which + %% rabbit_persister:serial/0, in combination with self/0 (which %% includes the node name) uniquely identifies a process in space %% and time. We combine that with a process-local counter to give %% us a GUID that is monotonically increasing per process. diff --git a/src/rabbit_memsup_linux.erl b/src/rabbit_memsup_linux.erl index 460fd88f..ffdc7e99 100644 --- a/src/rabbit_memsup_linux.erl +++ b/src/rabbit_memsup_linux.erl @@ -31,36 +31,74 @@ -module(rabbit_memsup_linux). --export([init/0, update/2, get_memory_data/1]). +-behaviour(gen_server). --record(state, {alarmed, - total_memory, - allocated_memory}). +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([update/0]). + +-define(SERVER, memsup). %% must be the same as the standard memsup + +-define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). + +-record(state, {memory_fraction, alarmed, timeout, timer}). %%---------------------------------------------------------------------------- -ifdef(use_specs). --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(update/0 :: () -> 'ok'). + +-endif. --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). +%%---------------------------------------------------------------------------- --endif. +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + + +update() -> + gen_server:cast(?SERVER, update). %%---------------------------------------------------------------------------- -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. +init(_Args) -> + Fraction = os_mon:get_env(memsup, system_memory_high_watermark), + TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), + {ok, #state{alarmed = false, + memory_fraction = Fraction, + timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, + timer = TRef}}. -update(MemoryFraction, State = #state { alarmed = Alarmed }) -> +start_timer(Timeout) -> + {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), + TRef. + +%% Export the same API as the real memsup. Note that +%% get_sysmem_high_watermark gives an int in the range 0 - 100, while +%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. +handle_call(get_sysmem_high_watermark, _From, State) -> + {reply, trunc(100 * State#state.memory_fraction), State}; + +handle_call({set_sysmem_high_watermark, Float}, _From, State) -> + {reply, ok, State#state{memory_fraction = Float}}; + +handle_call(get_check_interval, _From, State) -> + {reply, State#state.timeout, State}; + +handle_call({set_check_interval, Timeout}, _From, State) -> + {ok, cancel} = timer:cancel(State#state.timer), + {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; + +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast(update, State = #state{alarmed = Alarmed, + memory_fraction = MemoryFraction}) -> File = read_proc_file("/proc/meminfo"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), @@ -78,11 +116,19 @@ update(MemoryFraction, State = #state { alarmed = Alarmed }) -> _ -> ok end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. + {noreply, State#state{alarmed = NewAlarmed}}; + +handle_cast(_Request, State) -> + {noreply, State}. + +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok. -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. +code_change(_OldVsn, State, _Extra) -> + {ok, State}. %%---------------------------------------------------------------------------- @@ -106,10 +152,5 @@ read_proc_file(IoDevice, Acc) -> %% A line looks like "FooBar: 123456 kB" parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. + [Name, Value | _] = string:tokens(Line, ": "), + {list_to_atom(Name), list_to_integer(Value)}. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index c328c111..abf4c7cc 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -53,7 +53,6 @@ -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, keygets/2]). -import(mnesia). -import(lists). @@ -117,11 +116,7 @@ -spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). -spec(start_applications/1 :: ([atom()]) -> 'ok'). -spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> number()). --spec(keygets/2 :: ([({K, V} | {K, non_neg_integer(), V})], [any()]) -> - [({K, V} | any())]). - + -endif. %%---------------------------------------------------------------------------- @@ -365,8 +360,7 @@ dirty_foreach_key1(F, TableName, K) -> end. dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, - {file, FileName}]), + {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, {file, FileName}]), dirty_dump_log1(LH, disk_log:chunk(LH, start)), disk_log:close(LH). @@ -450,33 +444,3 @@ stop_applications(Apps) -> cannot_stop_application, Apps). -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N - T of - 0 -> N; - _ -> 1 + T - end. - -keygets(Keys, KeyList) -> - lists:reverse( - lists:foldl( - fun({Key, Pos, Default}, Acc) -> - case lists:keysearch(Key, Pos, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end; - ({Key, Default}, Acc) -> - case lists:keysearch(Key, 1, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end - end, [], Keys)). diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index b40294f6..575ecb0a 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -144,31 +144,11 @@ table_definitions() -> {disc_copies, [node()]}]}, {rabbit_queue, [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}, - {rabbit_disk_queue, - [{record_name, dq_msg_loc}, - {type, set}, - {local_content, true}, - {attributes, record_info(fields, dq_msg_loc)}, - {disc_copies, [node()]}]} - ]. - -replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - not lists:member({local_content, true}, Attrs) - ]. - -non_replicated_table_definitions() -> - [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), - lists:member({local_content, true}, Attrs) - ]. + {attributes, record_info(fields, amqqueue)}]}]. table_names() -> [Tab || {Tab, _} <- table_definitions()]. -replicated_table_names() -> - [Tab || {Tab, _} <- replicated_table_definitions()]. - dir() -> mnesia:system_info(directory). ensure_mnesia_dir() -> @@ -193,8 +173,7 @@ ensure_mnesia_not_running() -> check_schema_integrity() -> %%TODO: more thorough checks - case catch [mnesia:table_info(Tab, version) - || Tab <- table_names()] of + case catch [mnesia:table_info(Tab, version) || Tab <- table_names()] of {'EXIT', Reason} -> {error, Reason}; _ -> ok end. @@ -274,11 +253,9 @@ init_db(ClusterNodes) -> WasDiskNode = mnesia:system_info(use_dir), IsDiskNode = ClusterNodes == [] orelse lists:member(node(), ClusterNodes), - ExtraNodes = ClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ExtraNodes) of + case mnesia:change_config(extra_db_nodes, ClusterNodes -- [node()]) of {ok, []} -> - case WasDiskNode of - true -> + if WasDiskNode and IsDiskNode -> case check_schema_integrity() of ok -> ok; @@ -293,18 +270,22 @@ init_db(ClusterNodes) -> ok = move_db(), ok = create_schema() end; - false -> - ok = create_schema() + WasDiskNode -> + throw({error, {cannot_convert_disk_node_to_ram_node, + ClusterNodes}}); + IsDiskNode -> + ok = create_schema(); + true -> + throw({error, {unable_to_contact_cluster_nodes, + ClusterNodes}}) end; {ok, [_|_]} -> - TableCopyType = case IsDiskNode of - true -> disc; - false -> ram - end, - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_non_replicated_table_copies(disc), - ok = create_local_replicated_table_copies(TableCopyType); + ok = wait_for_tables(), + ok = create_local_table_copies( + case IsDiskNode of + true -> disc; + false -> ram + end); {error, Reason} -> %% one reason we may end up here is if we try to join %% nodes together that are currently running standalone or @@ -355,27 +336,16 @@ create_tables() -> table_definitions()), ok. -create_local_replicated_table_copies(Type) -> - create_local_table_copies(Type, replicated_table_definitions()). - -create_local_non_replicated_table_copies(Type) -> - create_local_table_copies(Type, non_replicated_table_definitions()). - -create_local_table_copies(Type, TableDefinitions) -> +create_local_table_copies(Type) -> + ok = if Type /= ram -> create_local_table_copy(schema, disc_copies); + true -> ok + end, lists:foreach( fun({Tab, TabDef}) -> HasDiscCopies = - case lists:keysearch(disc_copies, 1, TabDef) of - false -> false; - {value, {disc_copies, List1}} -> - lists:member(node(), List1) - end, + lists:keymember(disc_copies, 1, TabDef), HasDiscOnlyCopies = - case lists:keysearch(disc_only_copies, 1, TabDef) of - false -> false; - {value, {disc_only_copies, List2}} -> - lists:member(node(), List2) - end, + lists:keymember(disc_only_copies, 1, TabDef), StorageType = case Type of disc -> @@ -396,7 +366,10 @@ create_local_table_copies(Type, TableDefinitions) -> end, ok = create_local_table_copy(Tab, StorageType) end, - TableDefinitions), + table_definitions()), + ok = if Type == ram -> create_local_table_copy(schema, ram_copies); + true -> ok + end, ok. create_local_table_copy(Tab, Type) -> @@ -411,16 +384,10 @@ create_local_table_copy(Tab, Type) -> end, ok. -wait_for_replicated_tables() -> - wait_for_tables(replicated_table_names()). - -wait_for_tables() -> - wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> +wait_for_tables() -> case check_schema_integrity() of ok -> - case mnesia:wait_for_tables(TableNames, 30000) of + case mnesia:wait_for_tables(table_names(), 30000) of ok -> ok; {timeout, BadTabs} -> throw({error, {timeout_waiting_for_tables, BadTabs}}); diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index f6d42e7c..e5100ccd 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -31,9 +31,7 @@ -module(rabbit_tests). --compile(export_all). - --export([all_tests/0, test_parsing/0, test_disk_queue/0]). +-export([all_tests/0, test_parsing/0]). %% Exported so the hook mechanism can call back -export([handle_hook/3, bad_handle_hook/3, extra_arg_hook/5]). @@ -50,7 +48,6 @@ test_content_prop_roundtrip(Datum, Binary) -> Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion all_tests() -> - passed = test_disk_queue(), passed = test_priority_queue(), passed = test_parsing(), passed = test_topic_matching(), @@ -78,8 +75,7 @@ test_priority_queue() -> %% 1-element priority Q Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), + {true, false, 1, [{1, foo}], [foo]} = test_priority_queue(Q1), %% 2-element same-priority Q Q2 = priority_queue:in(bar, 1, Q1), @@ -95,42 +91,6 @@ test_priority_queue() -> Q4 = priority_queue:in(foo, -1, priority_queue:new()), {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - passed. priority_queue_in_all(Q, L) -> @@ -141,6 +101,7 @@ priority_queue_out_all(Q) -> {empty, _} -> []; {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] end. + test_priority_queue(Q) -> {priority_queue:is_queue(Q), priority_queue:is_empty(Q), @@ -447,17 +408,19 @@ test_cluster_management() -> end, ClusteringSequence), - %% convert a disk node into a ram node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(start_app, []), ok = control_action(stop_app, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), - %% join a non-existing cluster as a ram node + %% attempt to join a non-existing cluster as a ram node ok = control_action(reset, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + {error, {unable_to_contact_cluster_nodes, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), SecondaryNode = rabbit_misc:localnode(hare), case net_adm:ping(SecondaryNode) of @@ -473,12 +436,11 @@ test_cluster_management2(SecondaryNode) -> NodeS = atom_to_list(node()), SecondaryNodeS = atom_to_list(SecondaryNode), - %% make a disk node + %% attempt to convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), + {error, {unable_to_join_cluster, _, _}} = + control_action(cluster, [SecondaryNodeS]), %% join cluster as a ram node ok = control_action(reset, []), @@ -491,21 +453,21 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% join non-existing cluster as a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to join non-existing cluster as a ram node + {error, _} = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), + %% turn ram node into disk node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS, NodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% convert a disk node into a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% attempt to convert a disk node into a ram node + {error, {cannot_convert_disk_node_to_ram_node, _}} = + control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn a disk node into a ram node - ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), @@ -780,503 +742,3 @@ bad_handle_hook(_, _, _) -> bad:bad(). extra_arg_hook(Hookname, Handler, Args, Extra1, Extra2) -> handle_hook(Hookname, Handler, {Args, Extra1, Extra2}). - -test_disk_queue() -> - rdq_stop(), - rdq_virgin(), - passed = rdq_stress_gc(5000), - passed = rdq_test_startup_with_queue_gaps(), - passed = rdq_test_redeliver(), - passed = rdq_test_purge(), - passed = rdq_test_mixed_queue_modes(), - passed = rdq_test_mode_conversion_mid_txn(), - passed = rdq_test_disk_queue_modes(), - rdq_virgin(), - passed. - -benchmark_disk_queue() -> - rdq_stop(), - % unicode chars are supported properly from r13 onwards - io:format("Msg Count\t| Msg Size\t| Queue Count\t| Startup mu s\t| Publish mu s\t| Pub mu s/msg\t| Pub mu s/byte\t| Deliver mu s\t| Del mu s/msg\t| Del mu s/byte~n", []), - [begin rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSize), - timer:sleep(1000) end || % 1000 milliseconds - MsgSize <- [512, 8192, 32768, 131072], - Qs <- [[1], lists:seq(1,10)], %, lists:seq(1,100), lists:seq(1,1000)], - MsgCount <- [1024, 4096, 16384] - ], - rdq_virgin(), - ok = control_action(stop_app, []), - ok = control_action(start_app, []), - passed. - -rdq_message(MsgId, MsgBody, IsPersistent) -> - rabbit_basic:message(x, <<>>, [], MsgBody, MsgId, IsPersistent). - -rdq_match_message( - #basic_message { guid = MsgId, content = - #content { payload_fragments_rev = [MsgBody] }}, - MsgId, MsgBody, Size) when size(MsgBody) =:= Size -> - ok. - -rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSizeBytes) -> - Startup = rdq_virgin(), - rdq_start(), - QCount = length(Qs), - Msg = <<0:(8*MsgSizeBytes)>>, - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - {Publish, ok} = - timer:tc(?MODULE, rdq_time_commands, - [[fun() -> [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) - || N <- List, _ <- Qs] end, - fun() -> [ok = rabbit_disk_queue:tx_commit(Q, CommitList, []) - || Q <- Qs] end - ]]), - {Deliver, ok} = - timer:tc( - ?MODULE, rdq_time_commands, - [[fun() -> [begin SeqIds = - [begin - Remaining = MsgCount - N, - {Message, _TSize, false, SeqId, - Remaining} = rabbit_disk_queue:deliver(Q), - ok = rdq_match_message(Message, N, Msg, MsgSizeBytes), - SeqId - end || N <- List], - ok = rabbit_disk_queue:tx_commit(Q, [], SeqIds) - end || Q <- Qs] - end]]), - io:format(" ~15.10B| ~14.10B| ~14.10B| ~14.1f| ~14.1f| ~14.6f| ~14.10f| ~14.1f| ~14.6f| ~14.10f~n", - [MsgCount, MsgSizeBytes, QCount, float(Startup), - float(Publish), (Publish / (MsgCount * QCount)), - (Publish / (MsgCount * QCount * MsgSizeBytes)), - float(Deliver), (Deliver / (MsgCount * QCount)), - (Deliver / (MsgCount * QCount * MsgSizeBytes))]), - rdq_stop(). - -% we know each file is going to be 1024*1024*10 bytes in size (10MB), -% so make sure we have several files, and then keep punching holes in -% a reasonably sensible way. -rdq_stress_gc(MsgCount) -> - rdq_virgin(), - rdq_start(), - MsgSizeBytes = 256*1024, - Msg = <<0:(8*MsgSizeBytes)>>, % 256KB - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- List], - rabbit_disk_queue:tx_commit(q, CommitList, []), - StartChunk = round(MsgCount / 20), % 5% - AckList = - lists:foldl( - fun (E, Acc) -> - case lists:member(E, Acc) of - true -> Acc; - false -> [E|Acc] - end - end, [], lists:flatten( - lists:reverse( - [ lists:seq(N, MsgCount, N) - || N <- lists:seq(1, round(MsgCount / 2), 1) - ]))), - {Start, End} = lists:split(StartChunk, AckList), - AckList2 = End ++ Start, - MsgIdToSeqDict = - lists:foldl( - fun (MsgId, Acc) -> - Remaining = MsgCount - MsgId, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, MsgId, Msg, MsgSizeBytes), - dict:store(MsgId, SeqId, Acc) - end, dict:new(), List), - %% we really do want to ack each of this individually - [begin {ok, SeqId} = dict:find(MsgId, MsgIdToSeqDict), - rabbit_disk_queue:ack(q, [SeqId]) - end || MsgId <- AckList2], - rabbit_disk_queue:tx_commit(q, [], []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_startup_with_queue_gaps() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, true)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% ack every other message we have delivered (starting at the _first_) - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:ack(q, [SeqId2]), - false; - (_SeqId2, false) -> - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Acked every other message delivered done~n", []), - rdq_stop(), - rdq_start(), - io:format("Startup (with shuffle) done~n", []), - %% should have shuffled up. So we should now get - %% lists:seq(2,500,2) already delivered - Seqs2 = [begin - Remaining = round(Total - ((Half + N)/2)), - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(2,Half,2)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - io:format("Reread non-acked messages done~n", []), - %% and now fetch the rest - Seqs3 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1 + Half,Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - io:format("Read second half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_redeliver() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% now requeue every other message (starting at the _first_) - %% and ack the other ones - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:requeue(q, [{SeqId2, true}]), - false; - (SeqId2, false) -> - rabbit_disk_queue:ack(q, [SeqId2]), - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Redeliver and acking done~n", []), - %% we should now get the 2nd half in order, followed by - %% every-other-from-the-first-half - Seqs2 = [begin - Remaining = round(Total - N + (Half/2)), - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1+Half, Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - Seqs3 = [begin - Remaining = round((Half - N) / 2) - 1, - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1, Half, 2)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_purge() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - rabbit_disk_queue:purge(q), - io:format("Purge done~n", []), - rabbit_disk_queue:tx_commit(q, [], Seqs), - io:format("Ack first half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_new_mixed_queue(Q, Durable, Disk) -> - {ok, MS} = rabbit_mixed_queue:init(Q, Durable), - {MS1, _, _, _} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - case Disk of - true -> {ok, MS2} = rabbit_mixed_queue:to_disk_only_mode([], MS1), - MS2; - false -> MS1 - end. - -rdq_test_mixed_queue_modes() -> - rdq_virgin(), - rdq_start(), - Payload = <<0:(8*256)>>, - MS = rdq_new_mixed_queue(q, true, false), - MS2 = lists:foldl( - fun (_N, MS1) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS, lists:seq(1,10)), - MS4 = lists:foldl( - fun (_N, MS3) -> - Msg = (rabbit_basic:message(x, <<>>, [], Payload)) - #basic_message { is_persistent = true }, - {ok, MS3a} = rabbit_mixed_queue:publish(Msg, MS3), - MS3a - end, MS2, lists:seq(1,10)), - MS6 = lists:foldl( - fun (_N, MS5) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS5a} = rabbit_mixed_queue:publish(Msg, MS5), - MS5a - end, MS4, lists:seq(1,10)), - 30 = rabbit_mixed_queue:length(MS6), - io:format("Published a mixture of messages; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS6)]), - {ok, MS7} = rabbit_mixed_queue:to_disk_only_mode([], MS6), - 30 = rabbit_mixed_queue:length(MS7), - io:format("Converted to disk only mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS7)]), - {ok, MS8} = rabbit_mixed_queue:to_mixed_mode([], MS7), - 30 = rabbit_mixed_queue:length(MS8), - io:format("Converted to mixed mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS8)]), - MS10 = - lists:foldl( - fun (N, MS9) -> - Rem = 30 - N, - {{#basic_message { is_persistent = false }, - false, _AckTag, Rem}, - MS9a} = rabbit_mixed_queue:deliver(MS9), - MS9a - end, MS8, lists:seq(1,10)), - 20 = rabbit_mixed_queue:length(MS10), - io:format("Delivered initial non persistent messages~n"), - {ok, MS11} = rabbit_mixed_queue:to_disk_only_mode([], MS10), - 20 = rabbit_mixed_queue:length(MS11), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS12 = rdq_new_mixed_queue(q, true, false), - 10 = rabbit_mixed_queue:length(MS12), - io:format("Recovered queue~n"), - {MS14, AckTags} = - lists:foldl( - fun (N, {MS13, AcksAcc}) -> - Rem = 10 - N, - {{Msg = #basic_message { is_persistent = true }, - false, AckTag, Rem}, - MS13a} = rabbit_mixed_queue:deliver(MS13), - {MS13a, [{Msg, AckTag} | AcksAcc]} - end, {MS12, []}, lists:seq(1,10)), - 0 = rabbit_mixed_queue:length(MS14), - {ok, MS15} = rabbit_mixed_queue:ack(AckTags, MS14), - io:format("Delivered and acked all messages~n"), - {ok, MS16} = rabbit_mixed_queue:to_disk_only_mode([], MS15), - 0 = rabbit_mixed_queue:length(MS16), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS17 = rdq_new_mixed_queue(q, true, false), - 0 = rabbit_mixed_queue:length(MS17), - {MS17,0,0,0} = rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS17), - io:format("Recovered queue~n"), - rdq_stop(), - passed. - -rdq_test_mode_conversion_mid_txn() -> - Payload = <<0:(8*256)>>, - MsgIdsA = lists:seq(0,9), - MsgsA = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsA ], - MsgIdsB = lists:seq(10,20), - MsgsB = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsB ], - - rdq_virgin(), - rdq_start(), - MS0 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS0, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, commit), - - rdq_stop_virgin_start(), - MS1 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS1, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, cancel), - - - rdq_stop_virgin_start(), - MS2 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS2, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, commit), - - rdq_stop_virgin_start(), - MS3 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS3, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, cancel), - - rdq_stop(), - passed. - -rdq_tx_publish_mixed_alter_commit_get(MS0, MsgsA, MsgsB, ChangeFun, CommitOrCancel) -> - 0 = rabbit_mixed_queue:length(MS0), - MS2 = lists:foldl( - fun (Msg, MS1) -> - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS0, MsgsA), - Len0 = length(MsgsA), - Len0 = rabbit_mixed_queue:length(MS2), - MS4 = lists:foldl( - fun (Msg, MS3) -> - {ok, MS3a} = rabbit_mixed_queue:tx_publish(Msg, MS3), - MS3a - end, MS2, MsgsB), - Len0 = rabbit_mixed_queue:length(MS4), - {ok, MS5} = ChangeFun(MsgsB, MS4), - Len0 = rabbit_mixed_queue:length(MS5), - {ok, MS9} = - case CommitOrCancel of - commit -> - {ok, MS6} = rabbit_mixed_queue:tx_commit(MsgsB, [], MS5), - Len1 = Len0 + length(MsgsB), - Len1 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len1 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA ++ MsgsB), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8); - cancel -> - {ok, MS6} = rabbit_mixed_queue:tx_cancel(MsgsB, MS5), - Len0 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len0 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8) - end, - 0 = rabbit_mixed_queue:length(MS9), - Msg = rdq_message(0, <<0:256>>, false), - {ok, AckTag, MS10} = rabbit_mixed_queue:publish_delivered(Msg, MS9), - {ok,MS11} = rabbit_mixed_queue:ack([{Msg, AckTag}], MS10), - 0 = rabbit_mixed_queue:length(MS11), - passed. - -rdq_test_disk_queue_modes() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half1 = lists:seq(1,round(Total/2)), - Half2 = lists:seq(1 + round(Total/2), Total), - CommitHalf1 = lists:zip(Half1, lists:duplicate(round(Total/2), false)), - CommitHalf2 = lists:zip(Half2, lists:duplicate - (Total - round(Total/2), false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half1], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf1, []), - io:format("Publish done~n", []), - ok = rabbit_disk_queue:to_disk_only_mode(), - io:format("To Disk Only done~n", []), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half2], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf2, []), - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half1], - io:format("Deliver first half done~n", []), - ok = rabbit_disk_queue:to_ram_disk_mode(), - io:format("To RAM Disk done~n", []), - Seqs2 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half2], - io:format("Deliver second half done~n", []), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs), - ok = rabbit_disk_queue:to_disk_only_mode(), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs2), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_time_commands(Funcs) -> - lists:foreach(fun (F) -> F() end, Funcs). - -rdq_virgin() -> - {Micros, {ok, _}} = - timer:tc(rabbit_disk_queue, start_link, []), - ok = rabbit_disk_queue:stop_and_obliterate(), - timer:sleep(1000), - Micros. - -rdq_start() -> - {ok, _} = rabbit_disk_queue:start_link(), - ok = rabbit_disk_queue:to_ram_disk_mode(), - ok. - -rdq_stop() -> - rabbit_disk_queue:stop(), - timer:sleep(1000). - -rdq_stop_virgin_start() -> - rdq_stop(), - rdq_virgin(), - rdq_start(). -- cgit v1.2.1 From aafe9d4547153180a5f7546e08c84028fc4bcbdb Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 11:09:02 +0100 Subject: Matthew made a mess --- src/rabbit_disk_queue.erl | 1973 ------------------------------------- src/rabbit_memsup.erl | 126 --- src/rabbit_memsup_darwin.erl | 102 -- src/rabbit_mixed_queue.erl | 596 ----------- src/rabbit_persister.erl | 523 ++++++++++ src/rabbit_queue_mode_manager.erl | 496 ---------- src/rabbit_queue_prefetcher.erl | 258 ----- 7 files changed, 523 insertions(+), 3551 deletions(-) delete mode 100644 src/rabbit_disk_queue.erl delete mode 100644 src/rabbit_memsup.erl delete mode 100644 src/rabbit_memsup_darwin.erl delete mode 100644 src/rabbit_mixed_queue.erl create mode 100644 src/rabbit_persister.erl delete mode 100644 src/rabbit_queue_mode_manager.erl delete mode 100644 src/rabbit_queue_prefetcher.erl diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl deleted file mode 100644 index 5940f5ad..00000000 --- a/src/rabbit_disk_queue.erl +++ /dev/null @@ -1,1973 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_disk_queue). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([handle_pre_hibernate/1]). - --export([publish/3, deliver/1, phantom_deliver/1, ack/2, - tx_publish/1, tx_commit/3, tx_cancel/1, - requeue/2, purge/1, delete_queue/1, - delete_non_durable_queues/1, auto_ack_next_message/1, - requeue_next_n/2, length/1, foldl/3, prefetch/1 - ]). - --export([filesync/0, cache_info/0]). - --export([stop/0, stop_and_obliterate/0, report_memory/0, - set_mode/1, to_disk_only_mode/0, to_ram_disk_mode/0]). - --include("rabbit.hrl"). - --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_TRANSIENT, 255). --define(WRITE_OK_PERSISTENT, 254). --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(MSG_LOC_NAME, rabbit_disk_queue_msg_location). --define(FILE_SUMMARY_ETS_NAME, rabbit_disk_queue_file_summary). --define(SEQUENCE_ETS_NAME, rabbit_disk_queue_sequences). --define(CACHE_ETS_NAME, rabbit_disk_queue_cache). --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). --define(FILE_EXTENSION_DETS, ".dets"). --define(FILE_PACKING_ADJUSTMENT, (1 + (2* (?INTEGER_SIZE_BYTES)))). --define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds --define(BATCH_SIZE, 10000). --define(CACHE_MAX_SIZE, 10485760). - --define(SERVER, ?MODULE). - --define(MAX_READ_FILE_HANDLES, 256). --define(FILE_SIZE_LIMIT, (256*1024*1024)). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(dqstate, - {msg_location_dets, %% where are messages? - msg_location_ets, %% as above, but for ets version - operation_mode, %% ram_disk | disk_only - file_summary, %% what's in the files? - sequences, %% next read and write for each q - current_file_num, %% current file name as number - current_file_name, %% current file name - current_file_handle, %% current file handle - current_offset, %% current offset within current file - current_dirty, %% has the current file been written to - %% since the last fsync? - file_size_limit, %% how big can our files get? - read_file_handles, %% file handles for reading (LRU) - read_file_handles_limit, %% how many file handles can we open? - on_sync_txns, %% list of commiters to run on sync (reversed) - commit_timer_ref, %% TRef for our interval timer - last_sync_offset, %% current_offset at the last time we sync'd - message_cache, %% ets message cache - memory_report_timer, %% TRef for the memory report timer - wordsize, %% bytes in a word on this platform - mnesia_bytes_per_record, %% bytes per record in mnesia in ram_disk mode - ets_bytes_per_record %% bytes per record in msg_location_ets - }). - -%% The components: -%% -%% MsgLocation: this is a (d)ets table which contains: -%% {MsgId, RefCount, File, Offset, TotalSize, IsPersistent} -%% FileSummary: this is an ets table which contains: -%% {File, ValidTotalSize, ContiguousTop, Left, Right} -%% Sequences: this is an ets table which contains: -%% {Q, ReadSeqId, WriteSeqId} -%% rabbit_disk_queue: this is an mnesia table which contains: -%% #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, -%% is_delivered = IsDelivered, -%% msg_id = MsgId -%% } -%% - -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the MsgLocation table); how much useful data is in each file and -%% which files are on the left and right of each other. This is the -%% purpose of the FileSummary table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file, whilst ContiguousTop contains the amount of -%% valid data right at the start of each file. These are needed for -%% garbage collection. -%% -%% On publish, we write the message to disk, record the changes to -%% FileSummary and MsgLocation, and, should this be either a plain -%% publish, or followed by a tx_commit, we record the message in the -%% mnesia table. Sequences exists to enforce ordering of messages as -%% they are published within a queue. -%% -%% On delivery, we read the next message to be read from disk -%% (according to the ReadSeqId for the given queue) and record in the -%% mnesia table that the message has been delivered. -%% -%% On ack we remove the relevant entry from MsgLocation, update -%% FileSummary and delete from the mnesia table. -%% -%% In order to avoid extra mnesia searching, we return the SeqId -%% during delivery which must be returned in ack - it is not possible -%% to ack from MsgId alone. - -%% As messages are ack'd, holes develop in the files. When we discover -%% that either a file is now empty or that it can be combined with the -%% useful data in either its left or right file, we compact the two -%% files together. This keeps disk utilisation high and aids -%% performance. -%% -%% Given the compaction between two files, the left file is considered -%% the ultimate destination for the good data in the right file. If -%% necessary, the good data in the left file which is fragmented -%% throughout the file is written out to a temporary file, then read -%% back in to form a contiguous chunk of good data at the start of the -%% left file. Thus the left file is garbage collected and -%% compacted. Then the good data from the right file is copied onto -%% the end of the left file. MsgLocation and FileSummary tables are -%% updated. -%% -%% On startup, we scan the files we discover, dealing with the -%% possibilites of a crash have occured during a compaction (this -%% consists of tidyup - the compaction is deliberately designed such -%% that data is duplicated on disk rather than risking it being lost), -%% and rebuild the dets and ets tables (MsgLocation, FileSummary, -%% Sequences) from what we find. We ensure that the messages we have -%% discovered on disk match exactly with the messages recorded in the -%% mnesia table. - -%% MsgLocation is deliberately a dets table, and the mnesia table is -%% set to be a disk_only_table in order to ensure that we are not RAM -%% constrained. However, for performance reasons, it is possible to -%% call to_ram_disk_mode/0 which will alter the mnesia table to -%% disc_copies and convert MsgLocation to an ets table. This results -%% in a massive performance improvement, at the expense of greater RAM -%% usage. The idea is that when memory gets tight, we switch to -%% disk_only mode but otherwise try to run in ram_disk mode. - -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten (yes, this is -%% the data the size of which is tracked by the ContiguousTop -%% variable. Judicious use of a mirror is required). -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). - -%% ---- SPECS ---- - --ifdef(use_specs). - --type(seq_id() :: non_neg_integer()). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(publish/3 :: (queue_name(), message(), bool()) -> 'ok'). --spec(deliver/1 :: (queue_name()) -> - ('empty' | {message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}, non_neg_integer()})). --spec(phantom_deliver/1 :: (queue_name()) -> - ( 'empty' | {msg_id(), bool(), bool(), {msg_id(), seq_id()}, - non_neg_integer()})). --spec(prefetch/1 :: (queue_name()) -> 'ok'). --spec(ack/2 :: (queue_name(), [{msg_id(), seq_id()}]) -> 'ok'). --spec(auto_ack_next_message/1 :: (queue_name()) -> 'ok'). --spec(tx_publish/1 :: (message()) -> 'ok'). --spec(tx_commit/3 :: (queue_name(), [{msg_id(), bool()}], - [{msg_id(), seq_id()}]) -> 'ok'). --spec(tx_cancel/1 :: ([msg_id()]) -> 'ok'). --spec(requeue/2 :: (queue_name(), [{{msg_id(), seq_id()}, bool()}]) -> 'ok'). --spec(requeue_next_n/2 :: (queue_name(), non_neg_integer()) -> 'ok'). --spec(purge/1 :: (queue_name()) -> non_neg_integer()). --spec(delete_queue/1 :: (queue_name()) -> 'ok'). --spec(delete_non_durable_queues/1 :: (set()) -> 'ok'). --spec(length/1 :: (queue_name()) -> non_neg_integer()). --spec(foldl/3 :: (fun (({message(), non_neg_integer(), - bool(), {msg_id(), seq_id()}}, A) -> - A), A, queue_name()) -> A). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_obliterate/0 :: () -> 'ok'). --spec(to_disk_only_mode/0 :: () -> 'ok'). --spec(to_ram_disk_mode/0 :: () -> 'ok'). --spec(filesync/0 :: () -> 'ok'). --spec(cache_info/0 :: () -> [{atom(), term()}]). --spec(report_memory/0 :: () -> 'ok'). --spec(set_mode/1 :: ('disk' | 'mixed') -> 'ok'). - --endif. - -%% ---- PUBLIC API ---- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, - [?FILE_SIZE_LIMIT, ?MAX_READ_FILE_HANDLES], []). - -publish(Q, Message = #basic_message {}, IsDelivered) -> - gen_server2:cast(?SERVER, {publish, Q, Message, IsDelivered}). - -deliver(Q) -> - gen_server2:call(?SERVER, {deliver, Q}, infinity). - -phantom_deliver(Q) -> - gen_server2:call(?SERVER, {phantom_deliver, Q}, infinity). - -prefetch(Q) -> - gen_server2:pcast(?SERVER, -1, {prefetch, Q, self()}). - -ack(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {ack, Q, MsgSeqIds}). - -auto_ack_next_message(Q) -> - gen_server2:cast(?SERVER, {auto_ack_next_message, Q}). - -tx_publish(Message = #basic_message {}) -> - gen_server2:cast(?SERVER, {tx_publish, Message}). - -tx_commit(Q, PubMsgIds, AckSeqIds) - when is_list(PubMsgIds) andalso is_list(AckSeqIds) -> - gen_server2:call(?SERVER, {tx_commit, Q, PubMsgIds, AckSeqIds}, infinity). - -tx_cancel(MsgIds) when is_list(MsgIds) -> - gen_server2:cast(?SERVER, {tx_cancel, MsgIds}). - -requeue(Q, MsgSeqIds) when is_list(MsgSeqIds) -> - gen_server2:cast(?SERVER, {requeue, Q, MsgSeqIds}). - -requeue_next_n(Q, N) when is_integer(N) -> - gen_server2:cast(?SERVER, {requeue_next_n, Q, N}). - -purge(Q) -> - gen_server2:call(?SERVER, {purge, Q}, infinity). - -delete_queue(Q) -> - gen_server2:cast(?SERVER, {delete_queue, Q}). - -delete_non_durable_queues(DurableQueues) -> - gen_server2:call(?SERVER, {delete_non_durable_queues, DurableQueues}, - infinity). - -length(Q) -> - gen_server2:call(?SERVER, {length, Q}, infinity). - -foldl(Fun, Init, Acc) -> - gen_server2:call(?SERVER, {foldl, Fun, Init, Acc}, infinity). - -stop() -> - gen_server2:call(?SERVER, stop, infinity). - -stop_and_obliterate() -> - gen_server2:call(?SERVER, stop_vaporise, infinity). - -to_disk_only_mode() -> - gen_server2:pcall(?SERVER, 9, to_disk_only_mode, infinity). - -to_ram_disk_mode() -> - gen_server2:pcall(?SERVER, 9, to_ram_disk_mode, infinity). - -filesync() -> - gen_server2:pcast(?SERVER, 10, filesync). - -cache_info() -> - gen_server2:call(?SERVER, cache_info, infinity). - -report_memory() -> - gen_server2:cast(?SERVER, report_memory). - -set_mode(Mode) -> - gen_server2:pcast(?SERVER, 10, {set_mode, Mode}). - -%% ---- GEN-SERVER INTERNAL API ---- - -init([FileSizeLimit, ReadFileHandlesLimit]) -> - %% If the gen_server is part of a supervision tree and is ordered - %% by its supervisor to terminate, terminate will be called with - %% Reason=shutdown if the following conditions apply: - %% * the gen_server has been set to trap exit signals, and - %% * the shutdown strategy as defined in the supervisor's - %% child specification is an integer timeout value, not - %% brutal_kill. - %% Otherwise, the gen_server will be immediately terminated. - process_flag(trap_exit, true), - ok = rabbit_queue_mode_manager:register - (self(), true, rabbit_disk_queue, set_mode, []), - Node = node(), - ok = - case mnesia:change_table_copy_type(rabbit_disk_queue, Node, - disc_copies) of - {atomic, ok} -> ok; - {aborted, {already_exists, rabbit_disk_queue, Node, - disc_copies}} -> ok; - E -> E - end, - ok = filelib:ensure_dir(form_filename("nothing")), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - {ok, MsgLocationDets} = - dets:open_file(?MSG_LOC_NAME, - [{file, form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)}, - {min_no_slots, 1024*1024}, - %% man says this should be <= 32M. But it works... - {max_no_slots, 30*1024*1024}, - {type, set} - ]), - - %% it would be better to have this as private, but dets:from_ets/2 - %% seems to blow up if it is set private - MsgLocationEts = ets:new(?MSG_LOC_NAME, [set, protected]), - - TRef = start_memory_timer(), - - InitName = "0" ++ ?FILE_EXTENSION, - State = - #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - operation_mode = ram_disk, - file_summary = ets:new(?FILE_SUMMARY_ETS_NAME, - [set, private]), - sequences = ets:new(?SEQUENCE_ETS_NAME, - [set, private]), - current_file_num = 0, - current_file_name = InitName, - current_file_handle = undefined, - current_offset = 0, - current_dirty = false, - file_size_limit = FileSizeLimit, - read_file_handles = {dict:new(), gb_trees:empty()}, - read_file_handles_limit = ReadFileHandlesLimit, - on_sync_txns = [], - commit_timer_ref = undefined, - last_sync_offset = 0, - message_cache = ets:new(?CACHE_ETS_NAME, - [set, private]), - memory_report_timer = TRef, - wordsize = erlang:system_info(wordsize), - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined - }, - {ok, State1 = #dqstate { current_file_name = CurrentName, - current_offset = Offset } } = - load_from_disk(State), - Path = form_filename(CurrentName), - Exists = case file:read_file_info(Path) of - {error,enoent} -> false; - {ok, _} -> true - end, - %% read is only needed so that we can seek - {ok, FileHdl} = file:open(Path, [read, write, raw, binary, delayed_write]), - case Exists of - true -> {ok, Offset} = file:position(FileHdl, {bof, Offset}); - false -> %% new file, so preallocate - ok = preallocate(FileHdl, FileSizeLimit, Offset) - end, - State2 = State1 #dqstate { current_file_handle = FileHdl }, - %% by reporting a memory use of 0, we guarantee the manager will - %% grant us to ram_disk mode. We have to start in ram_disk mode - %% because we can't find values for mnesia_bytes_per_record or - %% ets_bytes_per_record otherwise. - ok = rabbit_queue_mode_manager:report_memory(self(), 0, false), - ok = report_memory(false, State2), - {ok, State2, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, true, false, true, State), - reply(Result, State1); -handle_call({phantom_deliver, Q}, _From, State) -> - {ok, Result, State1} = internal_deliver(Q, false, false, true, State), - reply(Result, State1); -handle_call({tx_commit, Q, PubMsgIds, AckSeqIds}, From, State) -> - State1 = - internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, State), - noreply(State1); -handle_call({purge, Q}, _From, State) -> - {ok, Count, State1} = internal_purge(Q, State), - reply(Count, State1); -handle_call({length, Q}, _From, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - reply(WriteSeqId - ReadSeqId, State); -handle_call({foldl, Fun, Init, Q}, _From, State) -> - {ok, Result, State1} = internal_foldl(Q, Fun, Init, State), - reply(Result, State1); -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; %% gen_server now calls terminate -handle_call(stop_vaporise, _From, State) -> - State1 = #dqstate { file_summary = FileSummary, - sequences = Sequences } = - shutdown(State), %% tidy up file handles early - {atomic, ok} = mnesia:clear_table(rabbit_disk_queue), - true = ets:delete(FileSummary), - true = ets:delete(Sequences), - lists:foreach(fun file:delete/1, filelib:wildcard(form_filename("*"))), - {stop, normal, ok, - State1 #dqstate { current_file_handle = undefined, - read_file_handles = {dict:new(), gb_trees:empty()}}}; - %% gen_server now calls terminate, which then calls shutdown -handle_call(to_disk_only_mode, _From, State) -> - reply(ok, to_disk_only_mode(State)); -handle_call(to_ram_disk_mode, _From, State) -> - reply(ok, to_ram_disk_mode(State)); -handle_call({delete_non_durable_queues, DurableQueues}, _From, State) -> - {ok, State1} = internal_delete_non_durable_queues(DurableQueues, State), - reply(ok, State1); -handle_call(cache_info, _From, State = #dqstate { message_cache = Cache }) -> - reply(ets:info(Cache), State). - -handle_cast({publish, Q, Message, IsDelivered}, State) -> - {ok, _MsgSeqId, State1} = internal_publish(Q, Message, IsDelivered, State), - noreply(State1); -handle_cast({ack, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_ack(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({auto_ack_next_message, Q}, State) -> - {ok, State1} = internal_auto_ack(Q, State), - noreply(State1); -handle_cast({tx_publish, Message}, State) -> - {ok, State1} = internal_tx_publish(Message, State), - noreply(State1); -handle_cast({tx_cancel, MsgIds}, State) -> - {ok, State1} = internal_tx_cancel(MsgIds, State), - noreply(State1); -handle_cast({requeue, Q, MsgSeqIds}, State) -> - {ok, State1} = internal_requeue(Q, MsgSeqIds, State), - noreply(State1); -handle_cast({requeue_next_n, Q, N}, State) -> - {ok, State1} = internal_requeue_next_n(Q, N, State), - noreply(State1); -handle_cast({delete_queue, Q}, State) -> - {ok, State1} = internal_delete_queue(Q, State), - noreply(State1); -handle_cast(filesync, State) -> - noreply(sync_current_file_handle(State)); -handle_cast({set_mode, Mode}, State) -> - noreply((case Mode of - disk -> fun to_disk_only_mode/1; - mixed -> fun to_ram_disk_mode/1 - end)(State)); -handle_cast(report_memory, State) -> - %% call noreply1/2, not noreply/1/2, as we don't want to restart the - %% memory_report_timer - %% by unsetting the timer, we force a report on the next normal message - noreply1(State #dqstate { memory_report_timer = undefined }); -handle_cast({prefetch, Q, From}, State) -> - {ok, Result, State1} = internal_deliver(Q, true, true, false, State), - Cont = rabbit_misc:with_exit_handler( - fun () -> false end, - fun () -> - ok = rabbit_queue_prefetcher:publish(From, Result), - true - end), - State3 = - case Cont of - true -> - case internal_deliver(Q, false, false, true, State1) of - {ok, empty, State2} -> State2; - {ok, {_MsgId, _IsPersistent, _Delivered, _MsgSeqId, _Rem}, - State2} -> State2 - end; - false -> State1 - end, - noreply(State3). - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(timeout, State) -> - %% must have commit_timer set, so timeout was 0, and we're not hibernating - noreply(sync_current_file_handle(State)). - -handle_pre_hibernate(State) -> - %% don't use noreply/1 or noreply1/1 as they'll restart the memory timer - ok = report_memory(true, State), - {hibernate, stop_memory_timer(State)}. - -terminate(_Reason, State) -> - shutdown(State). - -shutdown(State = #dqstate { msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - current_file_handle = FileHdl, - read_file_handles = {ReadHdls, _ReadHdlsAge} - }) -> - %% deliberately ignoring return codes here - State1 = stop_commit_timer(stop_memory_timer(State)), - dets:close(MsgLocationDets), - file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ - ?FILE_EXTENSION_DETS)), - true = ets:delete_all_objects(MsgLocationEts), - case FileHdl of - undefined -> ok; - _ -> sync_current_file_handle(State), - file:close(FileHdl) - end, - dict:fold(fun (_File, Hdl, _Acc) -> - file:close(Hdl) - end, ok, ReadHdls), - State1 #dqstate { current_file_handle = undefined, - current_dirty = false, - read_file_handles = {dict:new(), gb_trees:empty()}, - memory_report_timer = undefined - }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%% ---- UTILITY FUNCTIONS ---- - -stop_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #dqstate { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { memory_report_timer = undefined }. - -start_memory_timer() -> - {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, - rabbit_disk_queue, report_memory, []), - TRef. - -start_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> - ok = report_memory(false, State), - State #dqstate { memory_report_timer = start_memory_timer() }; -start_memory_timer(State) -> - State. - -report_memory(Hibernating, State) -> - Bytes = memory_use(State), - rabbit_queue_mode_manager:report_memory(self(), trunc(2.5 * Bytes), - Hibernating). - -memory_use(#dqstate { operation_mode = ram_disk, - file_summary = FileSummary, - sequences = Sequences, - msg_location_ets = MsgLocationEts, - message_cache = Cache, - wordsize = WordSize - }) -> - WordSize * (mnesia:table_info(rabbit_disk_queue, memory) + - ets:info(MsgLocationEts, memory) + - ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory)); -memory_use(#dqstate { operation_mode = disk_only, - file_summary = FileSummary, - sequences = Sequences, - msg_location_dets = MsgLocationDets, - message_cache = Cache, - wordsize = WordSize, - mnesia_bytes_per_record = MnesiaBytesPerRecord, - ets_bytes_per_record = EtsBytesPerRecord }) -> - MnesiaSizeEstimate = - mnesia:table_info(rabbit_disk_queue, size) * MnesiaBytesPerRecord, - MsgLocationSizeEstimate = - dets:info(MsgLocationDets, size) * EtsBytesPerRecord, - (WordSize * (ets:info(FileSummary, memory) + - ets:info(Cache, memory) + - ets:info(Sequences, memory))) + - rabbit_misc:ceil(MnesiaSizeEstimate) + - rabbit_misc:ceil(MsgLocationSizeEstimate). - -to_disk_only_mode(State = #dqstate { operation_mode = disk_only }) -> - State; -to_disk_only_mode(State = #dqstate { operation_mode = ram_disk, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts, - wordsize = WordSize }) -> - rabbit_log:info("Converting disk queue to disk only mode~n", []), - MnesiaMemoryBytes = WordSize * mnesia:table_info(rabbit_disk_queue, memory), - MnesiaSize = lists:max([1, mnesia:table_info(rabbit_disk_queue, size)]), - EtsMemoryBytes = WordSize * ets:info(MsgLocationEts, memory), - EtsSize = lists:max([1, ets:info(MsgLocationEts, size)]), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_only_copies), - ok = dets:from_ets(MsgLocationDets, MsgLocationEts), - true = ets:delete_all_objects(MsgLocationEts), - garbage_collect(), - State #dqstate { operation_mode = disk_only, - mnesia_bytes_per_record = MnesiaMemoryBytes / MnesiaSize, - ets_bytes_per_record = EtsMemoryBytes / EtsSize }. - -to_ram_disk_mode(State = #dqstate { operation_mode = ram_disk }) -> - State; -to_ram_disk_mode(State = #dqstate { operation_mode = disk_only, - msg_location_dets = MsgLocationDets, - msg_location_ets = MsgLocationEts }) -> - rabbit_log:info("Converting disk queue to ram disk mode~n", []), - {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), - disc_copies), - true = ets:from_dets(MsgLocationEts, MsgLocationDets), - ok = dets:delete_all_objects(MsgLocationDets), - garbage_collect(), - State #dqstate { operation_mode = ram_disk, - mnesia_bytes_per_record = undefined, - ets_bytes_per_record = undefined }. - -noreply(NewState) -> - noreply1(start_memory_timer(NewState)). - -noreply1(NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {noreply, NewState, hibernate}; -noreply1(NewState = #dqstate { commit_timer_ref = undefined }) -> - {noreply, start_commit_timer(NewState), 0}; -noreply1(NewState = #dqstate { on_sync_txns = [] }) -> - {noreply, stop_commit_timer(NewState), hibernate}; -noreply1(NewState) -> - {noreply, NewState, 0}. - -reply(Reply, NewState) -> - reply1(Reply, start_memory_timer(NewState)). - -reply1(Reply, NewState = #dqstate { on_sync_txns = [], - commit_timer_ref = undefined }) -> - {reply, Reply, NewState, hibernate}; -reply1(Reply, NewState = #dqstate { commit_timer_ref = undefined }) -> - {reply, Reply, start_commit_timer(NewState), 0}; -reply1(Reply, NewState = #dqstate { on_sync_txns = [] }) -> - {reply, Reply, stop_commit_timer(NewState), hibernate}; -reply1(Reply, NewState) -> - {reply, Reply, NewState, 0}. - -form_filename(Name) -> - filename:join(base_directory(), Name). - -base_directory() -> - filename:join(mnesia:system_info(directory), "rabbit_disk_queue/"). - -dets_ets_lookup(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - dets:lookup(MsgLocationDets, Key); -dets_ets_lookup(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - ets:lookup(MsgLocationEts, Key). - -dets_ets_delete(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Key) -> - ok = dets:delete(MsgLocationDets, Key); -dets_ets_delete(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Key) -> - true = ets:delete(MsgLocationEts, Key), - ok. - -dets_ets_insert(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - ok = dets:insert(MsgLocationDets, Obj); -dets_ets_insert(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert(MsgLocationEts, Obj), - ok. - -dets_ets_insert_new(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - true = dets:insert_new(MsgLocationDets, Obj); -dets_ets_insert_new(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - true = ets:insert_new(MsgLocationEts, Obj). - -dets_ets_match_object(#dqstate { msg_location_dets = MsgLocationDets, - operation_mode = disk_only }, - Obj) -> - dets:match_object(MsgLocationDets, Obj); -dets_ets_match_object(#dqstate { msg_location_ets = MsgLocationEts, - operation_mode = ram_disk }, - Obj) -> - ets:match_object(MsgLocationEts, Obj). - -get_read_handle(File, Offset, State = - #dqstate { read_file_handles = {ReadHdls, ReadHdlsAge}, - read_file_handles_limit = ReadFileHandlesLimit, - current_file_name = CurName, - current_dirty = IsDirty, - last_sync_offset = SyncOffset - }) -> - State1 = if CurName =:= File andalso IsDirty andalso Offset >= SyncOffset -> - sync_current_file_handle(State); - true -> State - end, - Now = now(), - {FileHdl, ReadHdls1, ReadHdlsAge1} = - case dict:find(File, ReadHdls) of - error -> - {ok, Hdl} = file:open(form_filename(File), - [read, raw, binary, - read_ahead]), - case dict:size(ReadHdls) < ReadFileHandlesLimit of - true -> - {Hdl, ReadHdls, ReadHdlsAge}; - _False -> - {Then, OldFile, ReadHdlsAge2} = - gb_trees:take_smallest(ReadHdlsAge), - {ok, {OldHdl, Then}} = - dict:find(OldFile, ReadHdls), - ok = file:close(OldHdl), - {Hdl, dict:erase(OldFile, ReadHdls), ReadHdlsAge2} - end; - {ok, {Hdl, Then}} -> - {Hdl, ReadHdls, gb_trees:delete(Then, ReadHdlsAge)} - end, - ReadHdls2 = dict:store(File, {FileHdl, Now}, ReadHdls1), - ReadHdlsAge3 = gb_trees:enter(Now, File, ReadHdlsAge1), - {FileHdl, - State1 #dqstate { read_file_handles = {ReadHdls2, ReadHdlsAge3} }}. - -sequence_lookup(Sequences, Q) -> - case ets:lookup(Sequences, Q) of - [] -> - {0, 0}; - [{Q, ReadSeqId, WriteSeqId}] -> - {ReadSeqId, WriteSeqId} - end. - -start_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, filesync, []), - State #dqstate { commit_timer_ref = TRef }. - -stop_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> - State; -stop_commit_timer(State = #dqstate { commit_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #dqstate { commit_timer_ref = undefined }. - -sync_current_file_handle(State = #dqstate { current_dirty = false, - on_sync_txns = [] }) -> - State; -sync_current_file_handle(State = #dqstate { current_file_handle = CurHdl, - current_dirty = IsDirty, - current_offset = CurOffset, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - SyncOffset1 = case IsDirty of - true -> ok = file:sync(CurHdl), - CurOffset; - false -> SyncOffset - end, - State1 = lists:foldl(fun internal_do_tx_commit/2, State, lists:reverse(Txns)), - State1 #dqstate { current_dirty = false, on_sync_txns = [], - last_sync_offset = SyncOffset1 }. - -msg_to_bin(Msg = #basic_message { content = Content }) -> - ClearedContent = rabbit_binary_parser:clear_decoded_content(Content), - term_to_binary(Msg #basic_message { content = ClearedContent }). - -bin_to_msg(MsgBin) -> - binary_to_term(MsgBin). - -remove_cache_entry(MsgId, #dqstate { message_cache = Cache }) -> - true = ets:delete(Cache, MsgId), - ok. - -fetch_and_increment_cache(MsgId, #dqstate { message_cache = Cache }) -> - case ets:lookup(Cache, MsgId) of - [] -> - not_found; - [{MsgId, Message, MsgSize, _RefCount}] -> - NewRefCount = ets:update_counter(Cache, MsgId, {4, 1}), - {Message, MsgSize, NewRefCount} - end. - -decrement_cache(MsgId, #dqstate { message_cache = Cache }) -> - true = try case ets:update_counter(Cache, MsgId, {4, -1}) of - N when N =< 0 -> true = ets:delete(Cache, MsgId); - _N -> true - end - catch error:badarg -> - %% MsgId is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message in mixed queue) - true - end, - ok. - -insert_into_cache(Message = #basic_message { guid = MsgId }, MsgSize, - Forced, State = #dqstate { message_cache = Cache }) -> - case cache_is_full(State) of - true -> ok; - false -> Count = case Forced of - true -> 0; - false -> 1 - end, - true = ets:insert_new(Cache, {MsgId, Message, - MsgSize, Count}), - ok - end. - -cache_is_full(#dqstate { message_cache = Cache }) -> - ets:info(Cache, memory) > ?CACHE_MAX_SIZE. - -%% ---- INTERNAL RAW FUNCTIONS ---- - -internal_deliver(Q, ReadMsg, FakeDeliver, Advance, - State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, empty, State}; - {ReadSeqId, WriteSeqId} when WriteSeqId >= ReadSeqId -> - Remaining = WriteSeqId - ReadSeqId - 1, - {ok, Result, State1} = - internal_read_message( - Q, ReadSeqId, ReadMsg, FakeDeliver, false, State), - true = case Advance of - true -> ets:insert(Sequences, - {Q, ReadSeqId+1, WriteSeqId}); - false -> true - end, - {ok, - case Result of - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}} -> - {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}, - Remaining}; - {Message, BodySize, Delivered, {MsgId, ReadSeqId}} -> - {Message, BodySize, Delivered, {MsgId, ReadSeqId}, - Remaining} - end, State1} - end. - -internal_foldl(Q, Fun, Init, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - internal_foldl(Q, WriteSeqId, Fun, State, Init, ReadSeqId). - -internal_foldl(_Q, SeqId, _Fun, State, Acc, SeqId) -> - {ok, Acc, State}; -internal_foldl(Q, WriteSeqId, Fun, State, Acc, ReadSeqId) -> - {ok, MsgStuff, State1} - = internal_read_message(Q, ReadSeqId, true, true, false, State), - Acc1 = Fun(MsgStuff, Acc), - internal_foldl(Q, WriteSeqId, Fun, State1, Acc1, ReadSeqId + 1). - -internal_read_message(Q, ReadSeqId, ReadMsg, FakeDeliver, ForceInCache, State) -> - [Obj = - #dq_msg_loc {is_delivered = Delivered, msg_id = MsgId}] = - mnesia:dirty_read(rabbit_disk_queue, {Q, ReadSeqId}), - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - ok = - if FakeDeliver orelse Delivered -> ok; - true -> - mnesia:dirty_write(rabbit_disk_queue, - Obj #dq_msg_loc {is_delivered = true}) - end, - case ReadMsg of - true -> - case fetch_and_increment_cache(MsgId, State) of - not_found -> - {FileHdl, State1} = get_read_handle(File, Offset, State), - {ok, {MsgBody, IsPersistent, BodySize}} = - read_message_at_offset(FileHdl, Offset, TotalSize), - #basic_message { is_persistent=IsPersistent, guid=MsgId } = - Message = bin_to_msg(MsgBody), - ok = if RefCount > 1 orelse ForceInCache -> - insert_into_cache - (Message, BodySize, ForceInCache, State1); - true -> ok - %% it's not in the cache and we only - %% have 1 queue with the message. So - %% don't bother putting it in the - %% cache. - end, - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State1}; - {Message, BodySize, _RefCount} -> - {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, - State} - end; - false -> - {ok, {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}}, State} - end. - -internal_auto_ack(Q, State) -> - case internal_deliver(Q, false, false, true, State) of - {ok, empty, State1} -> {ok, State1}; - {ok, {_MsgId, _IsPersistent, _Delivered, MsgSeqId, _Remaining}, - State1} -> - remove_messages(Q, [MsgSeqId], true, State1) - end. - -internal_ack(Q, MsgSeqIds, State) -> - remove_messages(Q, MsgSeqIds, true, State). - -%% Q is only needed if MnesiaDelete /= false -remove_messages(Q, MsgSeqIds, MnesiaDelete, - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - Files = - lists:foldl( - fun ({MsgId, SeqId}, Files1) -> - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = - dets_ets_lookup(State, MsgId), - Files2 = - case RefCount of - 1 -> - ok = dets_ets_delete(State, MsgId), - ok = remove_cache_entry(MsgId, State), - [{File, ValidTotalSize, ContiguousTop, - Left, Right}] = ets:lookup(FileSummary, File), - ContiguousTop1 = - lists:min([ContiguousTop, Offset]), - true = - ets:insert(FileSummary, - {File, (ValidTotalSize-TotalSize- - ?FILE_PACKING_ADJUSTMENT), - ContiguousTop1, Left, Right}), - if CurName =:= File -> Files1; - true -> sets:add_element(File, Files1) - end; - _ when 1 < RefCount -> - ok = decrement_cache(MsgId, State), - ok = dets_ets_insert( - State, {MsgId, RefCount - 1, File, Offset, - TotalSize, IsPersistent}), - Files1 - end, - ok = case MnesiaDelete of - true -> mnesia:dirty_delete(rabbit_disk_queue, - {Q, SeqId}); - txn -> mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write); - _ -> ok - end, - Files2 - end, sets:new(), MsgSeqIds), - State1 = compact(Files, State), - {ok, State1}. - -internal_tx_publish(Message = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, - State = #dqstate { current_file_handle = CurHdl, - current_file_name = CurName, - current_offset = CurOffset, - file_summary = FileSummary - }) -> - case dets_ets_lookup(State, MsgId) of - [] -> - %% New message, lots to do - {ok, TotalSize} = append_message(CurHdl, MsgId, msg_to_bin(Message), - IsPersistent), - true = dets_ets_insert_new - (State, {MsgId, 1, CurName, - CurOffset, TotalSize, IsPersistent}), - [{CurName, ValidTotalSize, ContiguousTop, Left, undefined}] = - ets:lookup(FileSummary, CurName), - ValidTotalSize1 = ValidTotalSize + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - ContiguousTop1 = if CurOffset =:= ContiguousTop -> - %% can't be any holes in this file - ValidTotalSize1; - true -> ContiguousTop - end, - true = ets:insert(FileSummary, {CurName, ValidTotalSize1, - ContiguousTop1, Left, undefined}), - NextOffset = CurOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - maybe_roll_to_new_file( - NextOffset, State #dqstate {current_offset = NextOffset, - current_dirty = true}); - [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] -> - %% We already know about it, just update counter - ok = dets_ets_insert(State, {MsgId, RefCount + 1, File, - Offset, TotalSize, IsPersistent}), - {ok, State} - end. - -internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, - State = #dqstate { current_file_name = CurFile, - current_dirty = IsDirty, - on_sync_txns = Txns, - last_sync_offset = SyncOffset - }) -> - NeedsSync = IsDirty andalso - lists:any(fun ({MsgId, _Delivered}) -> - [{MsgId, _RefCount, File, Offset, - _TotalSize, _IsPersistent}] = - dets_ets_lookup(State, MsgId), - File =:= CurFile andalso Offset >= SyncOffset - end, PubMsgIds), - TxnDetails = {Q, PubMsgIds, AckSeqIds, From}, - case NeedsSync of - true -> - Txns1 = [TxnDetails | Txns], - State #dqstate { on_sync_txns = Txns1 }; - false -> - internal_do_tx_commit(TxnDetails, State) - end. - -internal_do_tx_commit({Q, PubMsgIds, AckSeqIds, From}, - State = #dqstate { sequences = Sequences }) -> - {InitReadSeqId, InitWriteSeqId} = sequence_lookup(Sequences, Q), - WriteSeqId = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {ok, WriteSeqId1} = - lists:foldl( - fun ({MsgId, Delivered}, {ok, SeqId}) -> - {mnesia:write( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, - msg_id = MsgId, - is_delivered = Delivered - }, write), - SeqId + 1} - end, {ok, InitWriteSeqId}, PubMsgIds), - WriteSeqId1 - end), - {ok, State1} = remove_messages(Q, AckSeqIds, true, State), - true = case PubMsgIds of - [] -> true; - _ -> ets:insert(Sequences, {Q, InitReadSeqId, WriteSeqId}) - end, - gen_server2:reply(From, ok), - State1. - -internal_publish(Q, Message = #basic_message { guid = MsgId }, - IsDelivered, State) -> - {ok, State1 = #dqstate { sequences = Sequences }} = - internal_tx_publish(Message, State), - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - ok = mnesia:dirty_write(rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, WriteSeqId}, - msg_id = MsgId, - is_delivered = IsDelivered}), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId + 1}), - {ok, {MsgId, WriteSeqId}, State1}. - -internal_tx_cancel(MsgIds, State) -> - %% we don't need seq ids because we're not touching mnesia, - %% because seqids were never assigned - MsgSeqIds = lists:zip(MsgIds, lists:duplicate(erlang:length(MsgIds), - undefined)), - remove_messages(undefined, MsgSeqIds, false, State). - -internal_requeue(_Q, [], State) -> - {ok, State}; -internal_requeue(Q, MsgSeqIds, State = #dqstate { sequences = Sequences }) -> - %% We know that every seq_id in here is less than the ReadSeqId - %% you'll get if you look up this queue in Sequences (i.e. they've - %% already been delivered). We also know that the rows for these - %% messages are still in rabbit_disk_queue (i.e. they've not been - %% ack'd). - - %% Now, it would be nice if we could adjust the sequence ids in - %% rabbit_disk_queue (mnesia) to create a contiguous block and - %% then drop the ReadSeqId for the queue by the corresponding - %% amount. However, this is not safe because there may be other - %% sequence ids which have been sent out as part of deliveries - %% which are not being requeued. As such, moving things about in - %% rabbit_disk_queue _under_ the current ReadSeqId would result in - %% such sequence ids referring to the wrong messages. - - %% Therefore, the only solution is to take these messages, and to - %% reenqueue them at the top of the queue. Usefully, this only - %% affects the Sequences and rabbit_disk_queue structures - there - %% is no need to physically move the messages about on disk, so - %% MsgLocation and FileSummary stay put (which makes further sense - %% as they have no concept of sequence id anyway). - - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - {WriteSeqId1, Q, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foldl(fun requeue_message/2, {WriteSeqId, Q, []}, - MsgSeqIds) - end), - true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId1}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State}. - -requeue_message({{MsgId, SeqId}, IsDelivered}, {WriteSeqId, Q, Acc}) -> - [Obj = #dq_msg_loc { is_delivered = true, msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, SeqId}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeqId}, - is_delivered = IsDelivered - }, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write), - {WriteSeqId + 1, Q, [MsgId | Acc]}. - -%% move the next N messages from the front of the queue to the back. -internal_requeue_next_n(Q, N, State = #dqstate { sequences = Sequences }) -> - {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), - if N >= (WriteSeqId - ReadSeqId) -> {ok, State}; - true -> - {ReadSeqIdN, WriteSeqIdN, MsgIds} = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - requeue_next_messages(Q, N, ReadSeqId, WriteSeqId, []) - end - ), - true = ets:insert(Sequences, {Q, ReadSeqIdN, WriteSeqIdN}), - lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), - {ok, State} - end. - -requeue_next_messages(_Q, 0, ReadSeq, WriteSeq, Acc) -> - {ReadSeq, WriteSeq, Acc}; -requeue_next_messages(Q, N, ReadSeq, WriteSeq, Acc) -> - [Obj = #dq_msg_loc { msg_id = MsgId }] = - mnesia:read(rabbit_disk_queue, {Q, ReadSeq}, write), - ok = mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeq}}, - write), - ok = mnesia:delete(rabbit_disk_queue, {Q, ReadSeq}, write), - requeue_next_messages(Q, N - 1, ReadSeq + 1, WriteSeq + 1, [MsgId | Acc]). - -internal_purge(Q, State = #dqstate { sequences = Sequences }) -> - case sequence_lookup(Sequences, Q) of - {SeqId, SeqId} -> {ok, 0, State}; - {ReadSeqId, WriteSeqId} -> - {MsgSeqIds, WriteSeqId} = - rabbit_misc:unfold( - fun (SeqId) when SeqId == WriteSeqId -> false; - (SeqId) -> - [#dq_msg_loc { msg_id = MsgId }] = - mnesia:dirty_read(rabbit_disk_queue, {Q, SeqId}), - {true, {MsgId, SeqId}, SeqId + 1} - end, ReadSeqId), - true = ets:insert(Sequences, {Q, WriteSeqId, WriteSeqId}), - {ok, State1} = remove_messages(Q, MsgSeqIds, true, State), - {ok, WriteSeqId - ReadSeqId, State1} - end. - -internal_delete_queue(Q, State) -> - {ok, _Count, State1 = #dqstate { sequences = Sequences }} = - internal_purge(Q, State), %% remove everything undelivered - true = ets:delete(Sequences, Q), - %% now remove everything already delivered - Objs = mnesia:dirty_match_object( - rabbit_disk_queue, - #dq_msg_loc { queue_and_seq_id = {Q, '_'}, - msg_id = '_', - is_delivered = '_' - }), - MsgSeqIds = - lists:map( - fun (#dq_msg_loc { queue_and_seq_id = {_Q, SeqId}, - msg_id = MsgId }) -> - {MsgId, SeqId} end, Objs), - remove_messages(Q, MsgSeqIds, true, State1). - -internal_delete_non_durable_queues( - DurableQueues, State = #dqstate { sequences = Sequences }) -> - ets:foldl( - fun ({Q, _Read, _Write}, {ok, State1}) -> - case sets:is_element(Q, DurableQueues) of - true -> {ok, State1}; - false -> internal_delete_queue(Q, State1) - end - end, {ok, State}, Sequences). - -%% ---- ROLLING OVER THE APPEND FILE ---- - -maybe_roll_to_new_file(Offset, - State = #dqstate { file_size_limit = FileSizeLimit, - current_file_name = CurName, - current_file_handle = CurHdl, - current_file_num = CurNum, - file_summary = FileSummary - } - ) when Offset >= FileSizeLimit -> - State1 = sync_current_file_handle(State), - ok = file:close(CurHdl), - NextNum = CurNum + 1, - NextName = integer_to_list(NextNum) ++ ?FILE_EXTENSION, - {ok, NextHdl} = file:open(form_filename(NextName), - [write, raw, binary, delayed_write]), - ok = preallocate(NextHdl, FileSizeLimit, 0), - true = ets:update_element(FileSummary, CurName, {5, NextName}),%% 5 is Right - true = ets:insert_new(FileSummary, {NextName, 0, 0, CurName, undefined}), - State2 = State1 #dqstate { current_file_name = NextName, - current_file_handle = NextHdl, - current_file_num = NextNum, - current_offset = 0, - last_sync_offset = 0 - }, - {ok, compact(sets:from_list([CurName]), State2)}; -maybe_roll_to_new_file(_, State) -> - {ok, State}. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file:position(Hdl, {bof, FileSizeLimit}), - ok = file:truncate(Hdl), - {ok, FinalPos} = file:position(Hdl, {bof, FinalPos}), - ok. - -%% ---- GARBAGE COLLECTION / COMPACTION / AGGREGATION ---- - -compact(FilesSet, State) -> - %% smallest number, hence eldest, hence left-most, first - Files = lists:sort(sets:to_list(FilesSet)), - %% foldl reverses, so now youngest/right-most first - RemainingFiles = lists:foldl(fun (File, Acc) -> - delete_empty_files(File, Acc, State) - end, [], Files), - lists:foldl(fun combine_file/2, State, lists:reverse(RemainingFiles)). - -combine_file(File, State = #dqstate { file_summary = FileSummary, - current_file_name = CurName - }) -> - %% the file we're looking at may no longer exist as it may have - %% been deleted within the current GC run - case ets:lookup(FileSummary, File) of - [] -> State; - [FileObj = {File, _ValidData, _ContiguousTop, Left, Right}] -> - GoRight = - fun() -> - case Right of - undefined -> State; - _ when not (CurName == Right) -> - [RightObj] = ets:lookup(FileSummary, Right), - {_, State1} = - adjust_meta_and_combine(FileObj, RightObj, - State), - State1; - _ -> State - end - end, - case Left of - undefined -> - GoRight(); - _ -> [LeftObj] = ets:lookup(FileSummary, Left), - case adjust_meta_and_combine(LeftObj, FileObj, State) of - {true, State1} -> State1; - {false, State} -> GoRight() - end - end - end. - -adjust_meta_and_combine( - LeftObj = {LeftFile, LeftValidData, _LeftContigTop, LeftLeft, RightFile}, - RightObj = {RightFile, RightValidData, _RightContigTop, LeftFile, RightRight}, - State = #dqstate { file_size_limit = FileSizeLimit, - file_summary = FileSummary - }) -> - TotalValidData = LeftValidData + RightValidData, - if FileSizeLimit >= TotalValidData -> - State1 = combine_files(RightObj, LeftObj, State), - %% this could fail if RightRight is undefined - %% left is the 4th field - ets:update_element(FileSummary, RightRight, {4, LeftFile}), - true = ets:insert(FileSummary, {LeftFile, - TotalValidData, TotalValidData, - LeftLeft, - RightRight}), - true = ets:delete(FileSummary, RightFile), - {true, State1}; - true -> {false, State} - end. - -sort_msg_locations_by_offset(Asc, List) -> - Comp = case Asc of - true -> fun erlang:'<'/2; - false -> fun erlang:'>'/2 - end, - lists:sort(fun ({_, _, _, OffA, _, _}, {_, _, _, OffB, _, _}) -> - Comp(OffA, OffB) - end, List). - -truncate_and_extend_file(FileHdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file:position(FileHdl, {bof, Lowpoint}), - ok = file:truncate(FileHdl), - ok = preallocate(FileHdl, Highpoint, Lowpoint). - -combine_files({Source, SourceValid, _SourceContiguousTop, - _SourceLeft, _SourceRight}, - {Destination, DestinationValid, DestinationContiguousTop, - _DestinationLeft, _DestinationRight}, - State1) -> - State = close_file(Source, close_file(Destination, State1)), - {ok, SourceHdl} = - file:open(form_filename(Source), - [read, write, raw, binary, read_ahead, delayed_write]), - {ok, DestinationHdl} = - file:open(form_filename(Destination), - [read, write, raw, binary, read_ahead, delayed_write]), - ExpectedSize = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - if DestinationContiguousTop =:= DestinationValid -> - ok = truncate_and_extend_file(DestinationHdl, - DestinationValid, ExpectedSize); - true -> - Tmp = filename:rootname(Destination) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = - file:open(form_filename(Tmp), - [read, write, raw, binary, - read_ahead, delayed_write]), - Worklist = - lists:dropwhile( - fun ({_, _, _, Offset, _, _}) - when Offset /= DestinationContiguousTop -> - %% it cannot be that Offset == - %% DestinationContiguousTop because if it - %% was then DestinationContiguousTop would - %% have been extended by TotalSize - Offset < DestinationContiguousTop - %% Given expected access patterns, I suspect - %% that the list should be naturally sorted - %% as we require, however, we need to - %% enforce it anyway - end, sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Destination, - '_', '_', '_'}))), - ok = copy_messages( - Worklist, DestinationContiguousTop, DestinationValid, - DestinationHdl, TmpHdl, Destination, State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage from - %% Destination, and MsgLocationDets has been updated to - %% reflect compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file:position(TmpHdl, {bof, 0}), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, ExpectedSize), - {ok, TmpSize} = file:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file:sync(DestinationHdl), - ok = file:close(TmpHdl), - ok = file:delete(form_filename(Tmp)) - end, - SourceWorkList = - sort_msg_locations_by_offset( - true, dets_ets_match_object(State, - {'_', '_', Source, - '_', '_', '_'})), - ok = copy_messages(SourceWorkList, DestinationValid, ExpectedSize, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file:sync(DestinationHdl), - ok = file:close(SourceHdl), - ok = file:close(DestinationHdl), - ok = file:delete(form_filename(Source)), - State. - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, State) -> - {FinalOffset, BlockStart1, BlockEnd1} = - lists:foldl( - fun ({MsgId, RefCount, _Source, Offset, TotalSize, IsPersistent}, - {CurOffset, BlockStart, BlockEnd}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - Size = TotalSize + ?FILE_PACKING_ADJUSTMENT, - %% update MsgLocationDets to reflect change of file and offset - ok = dets_ets_insert - (State, {MsgId, RefCount, Destination, - CurOffset, TotalSize, IsPersistent}), - NextOffset = CurOffset + Size, - if BlockStart =:= undefined -> - %% base case, called only for the first list elem - {NextOffset, Offset, Offset + Size}; - Offset =:= BlockEnd -> - %% extend the current block because the next - %% msg follows straight on - {NextOffset, BlockStart, BlockEnd + Size}; - true -> - %% found a gap, so actually do the work for - %% the previous block - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file:position(SourceHdl, {bof, BlockStart}), - {ok, BSize} = - file:copy(SourceHdl, DestinationHdl, BSize), - {NextOffset, Offset, Offset + Size} - end - end, {InitOffset, undefined, undefined}, WorkList), - %% do the last remaining block - BSize1 = BlockEnd1 - BlockStart1, - {ok, BlockStart1} = file:position(SourceHdl, {bof, BlockStart1}), - {ok, BSize1} = file:copy(SourceHdl, DestinationHdl, BSize1), - ok. - -close_file(File, State = #dqstate { read_file_handles = - {ReadHdls, ReadHdlsAge} }) -> - case dict:find(File, ReadHdls) of - error -> - State; - {ok, {Hdl, Then}} -> - ok = file:close(Hdl), - State #dqstate { read_file_handles = - { dict:erase(File, ReadHdls), - gb_trees:delete(Then, ReadHdlsAge) } } - end. - -delete_empty_files(File, Acc, #dqstate { file_summary = FileSummary }) -> - [{File, ValidData, _ContiguousTop, Left, Right}] = - ets:lookup(FileSummary, File), - case ValidData of - %% we should NEVER find the current file in here hence right - %% should always be a file, not undefined - 0 -> - case {Left, Right} of - {undefined, _} when not (is_atom(Right)) -> - %% the eldest file is empty. YAY! - %% left is the 4th field - true = - ets:update_element(FileSummary, Right, {4, undefined}); - {_, _} when not (is_atom(Right)) -> - %% left is the 4th field - true = ets:update_element(FileSummary, Right, {4, Left}), - %% right is the 5th field - true = ets:update_element(FileSummary, Left, {5, Right}) - end, - true = ets:delete(FileSummary, File), - ok = file:delete(form_filename(File)), - Acc; - _ -> [File|Acc] - end. - -%% ---- DISK RECOVERY ---- - -add_index() -> - case mnesia:add_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - {aborted,{already_exists,rabbit_disk_queue,_}} -> ok; - E -> E - end. - -del_index() -> - case mnesia:del_table_index(rabbit_disk_queue, msg_id) of - {atomic, ok} -> ok; - %% hmm, something weird must be going on, but it's probably - %% not the end of the world - {aborted, {no_exists, rabbit_disk_queue,_}} -> ok; - E1 -> E1 - end. - -load_from_disk(State) -> - %% sorted so that smallest number is first. which also means - %% eldest file (left-most) first - ok = add_index(), - {Files, TmpFiles} = get_disk_queue_files(), - ok = recover_crashed_compactions(Files, TmpFiles), - %% There should be no more tmp files now, so go ahead and load the - %% whole lot - State1 = load_messages(undefined, Files, State), - %% Finally, check there is nothing in mnesia which we haven't - %% loaded - State2 = - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - {State6, FinalQ, MsgSeqIds2, _Len} = - mnesia:foldl( - fun (#dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = {Q, SeqId} }, - {State3, OldQ, MsgSeqIds, Len}) -> - {State4, MsgSeqIds1, Len1} = - case {OldQ == Q, MsgSeqIds} of - {true, _} when Len < ?BATCH_SIZE -> - {State3, MsgSeqIds, Len}; - {false, []} -> {State3, MsgSeqIds, Len}; - {_, _} -> - {ok, State5} = - remove_messages(Q, MsgSeqIds, - txn, State3), - {State5, [], 0} - end, - case dets_ets_lookup(State4, MsgId) of - [] -> ok = mnesia:delete(rabbit_disk_queue, - {Q, SeqId}, write), - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, true}] -> - {State4, Q, MsgSeqIds1, Len1}; - [{MsgId, _RefCount, _File, _Offset, - _TotalSize, false}] -> - {State4, Q, - [{MsgId, SeqId} | MsgSeqIds1], Len1+1} - end - end, {State1, undefined, [], 0}, rabbit_disk_queue), - {ok, State7} = - remove_messages(FinalQ, MsgSeqIds2, txn, State6), - State7 - end), - State8 = extract_sequence_numbers(State2), - ok = del_index(), - {ok, State8}. - -extract_sequence_numbers(State = #dqstate { sequences = Sequences }) -> - true = rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:read_lock_table(rabbit_disk_queue), - mnesia:foldl( - fun (#dq_msg_loc { queue_and_seq_id = {Q, SeqId} }, true) -> - NextWrite = SeqId + 1, - case ets:lookup(Sequences, Q) of - [] -> ets:insert_new(Sequences, - {Q, SeqId, NextWrite}); - [Orig = {Q, Read, Write}] -> - Repl = {Q, lists:min([Read, SeqId]), - lists:max([Write, NextWrite])}, - case Orig == Repl of - true -> true; - false -> ets:insert(Sequences, Repl) - end - end - end, true, rabbit_disk_queue) - end), - ok = remove_gaps_in_sequences(State), - State. - -remove_gaps_in_sequences(#dqstate { sequences = Sequences }) -> - %% read the comments at internal_requeue. - - %% Because we are at startup, we know that no sequence ids have - %% been issued (or at least, they were, but have been - %% forgotten). Therefore, we can nicely shuffle up and not - %% worry. Note that I'm choosing to shuffle up, but alternatively - %% we could shuffle downwards. However, I think there's greater - %% likelihood of gaps being at the bottom rather than the top of - %% the queue, so shuffling up should be the better bet. - rabbit_misc:execute_mnesia_transaction( - fun() -> - ok = mnesia:write_lock_table(rabbit_disk_queue), - lists:foreach( - fun ({Q, ReadSeqId, WriteSeqId}) -> - Gap = shuffle_up(Q, ReadSeqId-1, WriteSeqId-1, 0), - ReadSeqId1 = ReadSeqId + Gap, - true = ets:insert(Sequences, - {Q, ReadSeqId1, WriteSeqId}) - end, ets:match_object(Sequences, '_')) - end), - ok. - -shuffle_up(_Q, SeqId, SeqId, Gap) -> - Gap; -shuffle_up(Q, BaseSeqId, SeqId, Gap) -> - GapInc = - case mnesia:read(rabbit_disk_queue, {Q, SeqId}, write) of - [] -> 1; - [Obj] -> - case Gap of - 0 -> ok; - _ -> mnesia:write(rabbit_disk_queue, - Obj #dq_msg_loc { - queue_and_seq_id = {Q, SeqId + Gap }}, - write), - mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write) - end, - 0 - end, - shuffle_up(Q, BaseSeqId, SeqId - 1, Gap + GapInc). - -load_messages(undefined, [], - State = #dqstate { file_summary = FileSummary, - current_file_name = CurName }) -> - true = ets:insert_new(FileSummary, {CurName, 0, 0, undefined, undefined}), - State; -load_messages(Left, [], State) -> - Num = list_to_integer(filename:rootname(Left)), - Offset = - case dets_ets_match_object(State, {'_', '_', Left, '_', '_', '_'}) of - [] -> 0; - L -> - [ {_MsgId, _RefCount, Left, MaxOffset, TotalSize, _IsPersistent} - | _ ] = sort_msg_locations_by_offset(false, L), - MaxOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT - end, - State #dqstate { current_file_num = Num, current_file_name = Left, - current_offset = Offset }; -load_messages(Left, [File|Files], - State = #dqstate { file_summary = FileSummary }) -> - %% [{MsgId, TotalSize, FileOffset}] - {ok, Messages} = scan_file_for_valid_messages(form_filename(File)), - {ValidMessagesRev, ValidTotalSize} = lists:foldl( - fun (Obj = {MsgId, IsPersistent, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) of - 0 -> {VMAcc, VTSAcc}; - RefCount -> - true = dets_ets_insert_new - (State, {MsgId, RefCount, File, - Offset, TotalSize, IsPersistent}), - {[Obj | VMAcc], - VTSAcc + TotalSize + ?FILE_PACKING_ADJUSTMENT - } - end - end, {[], 0}, Messages), - %% foldl reverses lists and find_contiguous_block_prefix needs - %% elems in the same order as from scan_file_for_valid_messages - {ContiguousTop, _} = find_contiguous_block_prefix( - lists:reverse(ValidMessagesRev)), - Right = case Files of - [] -> undefined; - [F|_] -> F - end, - true = ets:insert_new(FileSummary, - {File, ValidTotalSize, ContiguousTop, Left, Right}), - load_messages(File, Files, State). - -%% ---- DISK RECOVERY OF FAILED COMPACTION ---- - -recover_crashed_compactions(Files, TmpFiles) -> - lists:foreach(fun (TmpFile) -> - ok = recover_crashed_compactions1(Files, TmpFile) end, - TmpFiles), - ok. - -verify_messages_in_mnesia(MsgIds) -> - lists:foreach( - fun (MsgId) -> - true = 0 < erlang:length(mnesia:dirty_index_match_object - (rabbit_disk_queue, - #dq_msg_loc { msg_id = MsgId, - queue_and_seq_id = '_', - is_delivered = '_' - }, - msg_id)) - end, MsgIds). - -grab_msg_id({MsgId, _IsPersistent, _TotalSize, _FileOffset}) -> - MsgId. - -recover_crashed_compactions1(Files, TmpFile) -> - NonTmpRelatedFile = filename:rootname(TmpFile) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFile, Files), - %% [{MsgId, TotalSize, FileOffset}] - {ok, UncorruptedMessagesTmp} = - scan_file_for_valid_messages(form_filename(TmpFile)), - MsgIdsTmp = lists:map(fun grab_msg_id/1, UncorruptedMessagesTmp), - %% all of these messages should appear in the mnesia table, - %% otherwise they wouldn't have been copied out - verify_messages_in_mnesia(MsgIdsTmp), - {ok, UncorruptedMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIds = lists:map(fun grab_msg_id/1, UncorruptedMessages), - %% 1) It's possible that everything in the tmp file is also in the - %% main file such that the main file is (prefix ++ - %% tmpfile). This means that compaction failed immediately - %% prior to the final step of deleting the tmp file. Plan: just - %% delete the tmp file - %% 2) It's possible that everything in the tmp file is also in the - %% main file but with holes throughout (or just somthing like - %% main = (prefix ++ hole ++ tmpfile)). This means that - %% compaction wrote out the tmp file successfully and then - %% failed. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 3) It's possible that everything in the tmp file is also in the - %% main file but such that the main file does not end with tmp - %% file (and there are valid messages in the suffix; main = - %% (prefix ++ tmpfile[with extra holes?] ++ suffix)). This - %% means that compaction failed as we were writing out the tmp - %% file. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 4) It's possible that there are messages in the tmp file which - %% are not in the main file. This means that writing out the - %% tmp file succeeded, but then we failed as we were copying - %% them back over to the main file, after truncating the main - %% file. As the main file has already been truncated, it should - %% consist only of valid messages. Plan: Truncate the main file - %% back to before any of the files in the tmp file and copy - %% them over again - case lists:all(fun (MsgId) -> lists:member(MsgId, MsgIds) end, MsgIdsTmp) of - true -> %% we're in case 1, 2 or 3 above. Just delete the tmp file - %% note this also catches the case when the tmp file - %% is empty - ok = file:delete(TmpFile); - _False -> - %% we're in case 4 above. Check that everything in the - %% main file is a valid message in mnesia - verify_messages_in_mnesia(MsgIds), - %% The main file should be contiguous - {Top, MsgIds} = find_contiguous_block_prefix(UncorruptedMessages), - %% we should have that none of the messages in the prefix - %% are in the tmp file - true = lists:all(fun (MsgId) -> - not (lists:member(MsgId, MsgIdsTmp)) - end, MsgIds), - {ok, MainHdl} = file:open(form_filename(NonTmpRelatedFile), - [write, raw, binary, delayed_write]), - {ok, Top} = file:position(MainHdl, Top), - %% wipe out any rubbish at the end of the file - ok = file:truncate(MainHdl), - %% there really could be rubbish at the end of the file - - %% we could have failed after the extending truncate. - %% Remember the head of the list will be the highest entry - %% in the file - [{_, _, TmpTopTotalSize, TmpTopOffset}|_] = UncorruptedMessagesTmp, - TmpSize = TmpTopOffset + TmpTopTotalSize + ?FILE_PACKING_ADJUSTMENT, - ExpectedAbsPos = Top + TmpSize, - {ok, ExpectedAbsPos} = file:position(MainHdl, {cur, TmpSize}), - %% and now extend the main file as big as necessary in a - %% single move if we run out of disk space, this truncate - %% could fail, but we still aren't risking losing data - ok = file:truncate(MainHdl), - {ok, TmpHdl} = file:open(form_filename(TmpFile), - [read, raw, binary, read_ahead]), - {ok, TmpSize} = file:copy(TmpHdl, MainHdl, TmpSize), - ok = file:close(MainHdl), - ok = file:close(TmpHdl), - ok = file:delete(TmpFile), - - {ok, MainMessages} = - scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), - MsgIdsMain = lists:map(fun grab_msg_id/1, MainMessages), - %% check that everything in MsgIds is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIds), - %% check that everything in MsgIdsTmp is in MsgIdsMain - true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, - MsgIdsTmp) - end, - ok. - -%% this assumes that the messages are ordered such that the highest -%% address is at the head of the list. This matches what -%% scan_file_for_valid_messages produces -find_contiguous_block_prefix([]) -> {0, []}; -find_contiguous_block_prefix([ {MsgId, _IsPersistent, TotalSize, Offset} - | Tail]) -> - case find_contiguous_block_prefix(Tail, Offset, [MsgId]) of - {ok, Acc} -> {Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT, - lists:reverse(Acc)}; - Res -> Res - end. -find_contiguous_block_prefix([], 0, Acc) -> - {ok, Acc}; -find_contiguous_block_prefix([], _N, _Acc) -> - {0, []}; -find_contiguous_block_prefix([{MsgId, _IsPersistent, TotalSize, Offset} | Tail], - ExpectedOffset, Acc) - when ExpectedOffset =:= Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT -> - find_contiguous_block_prefix(Tail, Offset, [MsgId|Acc]); -find_contiguous_block_prefix(List, _ExpectedOffset, _Acc) -> - find_contiguous_block_prefix(List). - -file_name_sort(A, B) -> - ANum = list_to_integer(filename:rootname(A)), - BNum = list_to_integer(filename:rootname(B)), - ANum < BNum. - -get_disk_queue_files() -> - DQFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION, base_directory()), - DQFilesSorted = lists:sort(fun file_name_sort/2, DQFiles), - DQTFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION_TMP, base_directory()), - DQTFilesSorted = lists:sort(fun file_name_sort/2, DQTFiles), - {DQFilesSorted, DQTFilesSorted}. - -%% ---- RAW READING AND WRITING OF FILES ---- - -append_message(FileHdl, MsgId, MsgBody, IsPersistent) when is_binary(MsgBody) -> - BodySize = size(MsgBody), - MsgIdBin = term_to_binary(MsgId), - MsgIdBinSize = size(MsgIdBin), - TotalSize = BodySize + MsgIdBinSize, - StopByte = case IsPersistent of - true -> ?WRITE_OK_PERSISTENT; - false -> ?WRITE_OK_TRANSIENT - end, - case file:write(FileHdl, <>) of - ok -> {ok, TotalSize}; - KO -> KO - end. - -read_message_at_offset(FileHdl, Offset, TotalSize) -> - TotalSizeWriteOkBytes = TotalSize + 1, - case file:position(FileHdl, {bof, Offset}) of - {ok, Offset} -> - case file:read(FileHdl, TotalSize + ?FILE_PACKING_ADJUSTMENT) of - {ok, <>} -> - BodySize = TotalSize - MsgIdBinSize, - case Rest of - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_TRANSIENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, false, BodySize}}; - <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, - ?WRITE_OK_PERSISTENT:?WRITE_OK_SIZE_BITS>> -> - {ok, {MsgBody, true, BodySize}} - end; - KO -> KO - end; - KO -> KO - end. - -scan_file_for_valid_messages(File) -> - {ok, Hdl} = file:open(File, [raw, binary, read]), - Valid = scan_file_for_valid_messages(Hdl, 0, []), - %% if something really bad's happened, the close could fail, but ignore - file:close(Hdl), - Valid. - -scan_file_for_valid_messages(FileHdl, Offset, Acc) -> - case read_next_file_entry(FileHdl, Offset) of - {ok, eof} -> {ok, Acc}; - {ok, {corrupted, NextOffset}} -> - scan_file_for_valid_messages(FileHdl, NextOffset, Acc); - {ok, {ok, MsgId, IsPersistent, TotalSize, NextOffset}} -> - scan_file_for_valid_messages( - FileHdl, NextOffset, - [{MsgId, IsPersistent, TotalSize, Offset} | Acc]); - _KO -> - %% bad message, but we may still have recovered some valid messages - {ok, Acc} - end. - -read_next_file_entry(FileHdl, Offset) -> - TwoIntegers = 2 * ?INTEGER_SIZE_BYTES, - case file:read(FileHdl, TwoIntegers) of - {ok, - <>} -> - case {TotalSize =:= 0, MsgIdBinSize =:= 0} of - {true, _} -> {ok, eof}; %% Nothing we can do other than stop - {false, true} -> - %% current message corrupted, try skipping past it - ExpectedAbsPos = - Offset + ?FILE_PACKING_ADJUSTMENT + TotalSize, - case file:position(FileHdl, {cur, TotalSize + 1}) of - {ok, ExpectedAbsPos} -> - {ok, {corrupted, ExpectedAbsPos}}; - {ok, _SomeOtherPos} -> - {ok, eof}; %% seek failed, so give up - KO -> KO - end; - {false, false} -> %% all good, let's continue - case file:read(FileHdl, MsgIdBinSize) of - {ok, <>} -> - ExpectedAbsPos = Offset + TwoIntegers + TotalSize, - case file:position(FileHdl, - {cur, TotalSize - MsgIdBinSize} - ) of - {ok, ExpectedAbsPos} -> - NextOffset = Offset + TotalSize + - ?FILE_PACKING_ADJUSTMENT, - case file:read(FileHdl, 1) of - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - false, TotalSize, NextOffset}}; - {ok, - <>} -> - {ok, - {ok, binary_to_term(MsgId), - true, TotalSize, NextOffset}}; - {ok, _SomeOtherData} -> - {ok, {corrupted, NextOffset}}; - KO -> KO - end; - {ok, _SomeOtherPos} -> - %% seek failed, so give up - {ok, eof}; - KO -> KO - end; - eof -> {ok, eof}; - KO -> KO - end - end; - eof -> {ok, eof}; - KO -> KO - end. diff --git a/src/rabbit_memsup.erl b/src/rabbit_memsup.erl deleted file mode 100644 index 5f242881..00000000 --- a/src/rabbit_memsup.erl +++ /dev/null @@ -1,126 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0]). - --record(state, {memory_fraction, - timeout, - timer, - mod, - mod_state - }). - --define(SERVER, memsup). %% must be the same as the standard memsup - --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (atom()) -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(update/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -update() -> - gen_server:cast(?SERVER, update). - -%%---------------------------------------------------------------------------- - -init([Mod]) -> - Fraction = os_mon:get_env(memsup, system_memory_high_watermark), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - InitState = Mod:init(), - State = #state { memory_fraction = Fraction, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - mod = Mod, - mod_state = Mod:update(Fraction, InitState) }, - {ok, State}. - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% Export the same API as the real memsup. Note that -%% get_sysmem_high_watermark gives an int in the range 0 - 100, while -%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. -handle_call(get_sysmem_high_watermark, _From, State) -> - {reply, trunc(100 * State#state.memory_fraction), State}; - -handle_call({set_sysmem_high_watermark, Float}, _From, State) -> - {reply, ok, State#state{memory_fraction = Float}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_data, _From, - State = #state { mod = Mod, mod_state = ModState }) -> - {reply, Mod:get_memory_data(ModState), State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State = #state { memory_fraction = MemoryFraction, - mod = Mod, mod_state = ModState }) -> - ModState1 = Mod:update(MemoryFraction, ModState), - {noreply, State #state { mod_state = ModState1 }}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_memsup_darwin.erl b/src/rabbit_memsup_darwin.erl deleted file mode 100644 index 990c5b99..00000000 --- a/src/rabbit_memsup_darwin.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_memsup_darwin). - --export([init/0, update/2, get_memory_data/1]). - --record(state, {alarmed, - total_memory, - allocated_memory}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), - allocated_memory :: ('undefined' | non_neg_integer()) - }). - --spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). --spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), - ('undefined' | pid())}). - --endif. - -%%---------------------------------------------------------------------------- - -init() -> - #state{alarmed = false, - total_memory = undefined, - allocated_memory = undefined}. - -update(MemoryFraction, State = #state{ alarmed = Alarmed }) -> - File = os:cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), - PageSize = dict:fetch(page_size, Dict), - Inactive = dict:fetch('Pages inactive', Dict), - Active = dict:fetch('Pages active', Dict), - Free = dict:fetch('Pages free', Dict), - Wired = dict:fetch('Pages wired down', Dict), - MemTotal = PageSize * (Inactive + Active + Free + Wired), - MemUsed = PageSize * (Active + Wired), - NewAlarmed = MemUsed / MemTotal > MemoryFraction, - case {Alarmed, NewAlarmed} of - {false, true} -> - alarm_handler:set_alarm({system_memory_high_watermark, []}); - {true, false} -> - alarm_handler:clear_alarm(system_memory_high_watermark); - _ -> - ok - end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. - -get_memory_data(State) -> - {State#state.total_memory, State#state.allocated_memory, undefined}. - -%%---------------------------------------------------------------------------- - -%% A line looks like "Foo bar: 123456." -parse_line(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. diff --git a/src/rabbit_mixed_queue.erl b/src/rabbit_mixed_queue.erl deleted file mode 100644 index 4b0810a8..00000000 --- a/src/rabbit_mixed_queue.erl +++ /dev/null @@ -1,596 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_mixed_queue). - --include("rabbit.hrl"). - --export([init/2]). - --export([publish/2, publish_delivered/2, deliver/1, ack/2, - tx_publish/2, tx_commit/3, tx_cancel/2, requeue/2, purge/1, - length/1, is_empty/1, delete_queue/1, maybe_prefetch/1]). - --export([to_disk_only_mode/2, to_mixed_mode/2, info/1, - estimate_queue_memory_and_reset_counters/1]). - --record(mqstate, { mode, - msg_buf, - queue, - is_durable, - length, - memory_size, - memory_gain, - memory_loss, - prefetcher - } - ). - --define(TO_DISK_MAX_FLUSH_SIZE, 100000). - --ifdef(use_specs). - --type(mode() :: ( 'disk' | 'mixed' )). --type(mqstate() :: #mqstate { mode :: mode(), - msg_buf :: queue(), - queue :: queue_name(), - is_durable :: bool(), - length :: non_neg_integer(), - memory_size :: (non_neg_integer() | 'undefined'), - memory_gain :: (non_neg_integer() | 'undefined'), - memory_loss :: (non_neg_integer() | 'undefined'), - prefetcher :: (pid() | 'undefined') - }). --type(acktag() :: ( 'noack' | { non_neg_integer(), non_neg_integer() })). --type(okmqs() :: {'ok', mqstate()}). - --spec(init/2 :: (queue_name(), bool()) -> okmqs()). --spec(publish/2 :: (message(), mqstate()) -> okmqs()). --spec(publish_delivered/2 :: (message(), mqstate()) -> - {'ok', acktag(), mqstate()}). --spec(deliver/1 :: (mqstate()) -> - {('empty' | {message(), bool(), acktag(), non_neg_integer()}), - mqstate()}). --spec(ack/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(tx_publish/2 :: (message(), mqstate()) -> okmqs()). --spec(tx_commit/3 :: ([message()], [acktag()], mqstate()) -> okmqs()). --spec(tx_cancel/2 :: ([message()], mqstate()) -> okmqs()). --spec(requeue/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). --spec(purge/1 :: (mqstate()) -> okmqs()). - --spec(delete_queue/1 :: (mqstate()) -> {'ok', mqstate()}). - --spec(length/1 :: (mqstate()) -> non_neg_integer()). --spec(is_empty/1 :: (mqstate()) -> bool()). - --spec(to_disk_only_mode/2 :: ([message()], mqstate()) -> okmqs()). --spec(to_mixed_mode/2 :: ([message()], mqstate()) -> okmqs()). - --spec(estimate_queue_memory_and_reset_counters/1 :: (mqstate()) -> - {mqstate(), non_neg_integer(), non_neg_integer(), - non_neg_integer()}). --spec(info/1 :: (mqstate()) -> mode()). - --endif. - -init(Queue, IsDurable) -> - Len = rabbit_disk_queue:length(Queue), - MsgBuf = inc_queue_length(Queue, queue:new(), Len), - Size = rabbit_disk_queue:foldl( - fun ({Msg = #basic_message { is_persistent = true }, - _Size, _IsDelivered, _AckTag}, Acc) -> - Acc + size_of_message(Msg) - end, 0, Queue), - {ok, #mqstate { mode = disk, msg_buf = MsgBuf, queue = Queue, - is_durable = IsDurable, length = Len, - memory_size = Size, memory_gain = undefined, - memory_loss = undefined, prefetcher = undefined }}. - -size_of_message( - #basic_message { content = #content { payload_fragments_rev = Payload }}) -> - lists:foldl(fun (Frag, SumAcc) -> - SumAcc + size(Frag) - end, 0, Payload). - -to_disk_only_mode(_TxnMessages, State = #mqstate { mode = disk }) -> - {ok, State}; -to_disk_only_mode(TxnMessages, State = - #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, prefetcher = Prefetcher - }) -> - rabbit_log:info("Converting queue to disk only mode: ~p~n", [Q]), - State1 = State #mqstate { mode = disk }, - {MsgBuf1, State2} = - case Prefetcher of - undefined -> {MsgBuf, State1}; - _ -> - case rabbit_queue_prefetcher:drain_and_stop(Prefetcher) of - empty -> {MsgBuf, State1}; - {Fetched, Len} -> - State3 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State1), - {queue:join(Fetched, MsgBuf2), State3} - end - end, - %% We enqueue _everything_ here. This means that should a message - %% already be in the disk queue we must remove it and add it back - %% in. Fortunately, by using requeue, we avoid rewriting the - %% message on disk. - %% Note we also batch together messages on disk so that we minimise - %% the calls to requeue. - {ok, MsgBuf3} = - send_messages_to_disk(IsDurable, Q, MsgBuf1, 0, 0, [], queue:new()), - %% tx_publish txn messages. Some of these will have been already - %% published if they really are durable and persistent which is - %% why we can't just use our own tx_publish/2 function (would end - %% up publishing twice, so refcount would go wrong in disk_queue). - lists:foreach( - fun (Msg = #basic_message { is_persistent = IsPersistent }) -> - ok = case IsDurable andalso IsPersistent of - true -> ok; - _ -> rabbit_disk_queue:tx_publish(Msg) - end - end, TxnMessages), - garbage_collect(), - {ok, State2 #mqstate { msg_buf = MsgBuf3, prefetcher = undefined }}. - -send_messages_to_disk(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf) -> - case queue:out(Queue) of - {empty, _Queue} -> - ok = flush_messages_to_disk_queue(Q, Commit), - [] = flush_requeue_to_disk_queue(Q, RequeueCount, []), - {ok, MsgBuf}; - {{value, {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered}}, Queue1} -> - case IsDurable andalso IsPersistent of - true -> %% it's already in the Q - send_messages_to_disk( - IsDurable, Q, Queue1, PublishCount, RequeueCount + 1, - Commit, inc_queue_length(Q, MsgBuf, 1)); - false -> - republish_message_to_disk_queue( - IsDurable, Q, Queue1, PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered) - end; - {{value, {Msg, IsDelivered, _AckTag}}, Queue1} -> - %% these have come via the prefetcher, so are no longer in - %% the disk queue so they need to be republished - republish_message_to_disk_queue(IsDelivered, Q, Queue1, - PublishCount, RequeueCount, Commit, - MsgBuf, Msg, IsDelivered); - {{value, {Q, Count}}, Queue1} -> - send_messages_to_disk(IsDurable, Q, Queue1, PublishCount, - RequeueCount + Count, Commit, - inc_queue_length(Q, MsgBuf, Count)) - end. - -republish_message_to_disk_queue(IsDurable, Q, Queue, PublishCount, RequeueCount, - Commit, MsgBuf, Msg = - #basic_message { guid = MsgId }, IsDelivered) -> - Commit1 = flush_requeue_to_disk_queue(Q, RequeueCount, Commit), - ok = rabbit_disk_queue:tx_publish(Msg), - {PublishCount1, Commit2} = - case PublishCount == ?TO_DISK_MAX_FLUSH_SIZE of - true -> ok = flush_messages_to_disk_queue(Q, Commit1), - {1, [{MsgId, IsDelivered}]}; - false -> {PublishCount + 1, [{MsgId, IsDelivered} | Commit1]} - end, - send_messages_to_disk(IsDurable, Q, Queue, PublishCount1, 0, - Commit2, inc_queue_length(Q, MsgBuf, 1)). - -flush_messages_to_disk_queue(_Q, []) -> - ok; -flush_messages_to_disk_queue(Q, Commit) -> - rabbit_disk_queue:tx_commit(Q, lists:reverse(Commit), []). - -flush_requeue_to_disk_queue(_Q, 0, Commit) -> - Commit; -flush_requeue_to_disk_queue(Q, RequeueCount, Commit) -> - ok = flush_messages_to_disk_queue(Q, Commit), - ok = rabbit_disk_queue:requeue_next_n(Q, RequeueCount), - []. - -to_mixed_mode(_TxnMessages, State = #mqstate { mode = mixed }) -> - {ok, State}; -to_mixed_mode(TxnMessages, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable }) -> - rabbit_log:info("Converting queue to mixed mode: ~p~n", [Q]), - %% The queue has a token just saying how many msgs are on disk - %% (this is already built for us when in disk mode). - %% Don't actually do anything to the disk - %% Don't start prefetcher just yet because the queue maybe busy - - %% wait for hibernate timeout in the amqqueue_process. - - %% Remove txn messages from disk which are neither persistent and - %% durable. This is necessary to avoid leaks. This is also pretty - %% much the inverse behaviour of our own tx_cancel/2 which is why - %% we're not using it. - Cancel = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent }, Acc) -> - case IsDurable andalso IsPersistent of - true -> Acc; - false -> [Msg #basic_message.guid | Acc] - end - end, [], TxnMessages), - ok = if Cancel == [] -> ok; - true -> rabbit_disk_queue:tx_cancel(Cancel) - end, - garbage_collect(), - {ok, State #mqstate { mode = mixed }}. - -inc_queue_length(_Q, MsgBuf, 0) -> - MsgBuf; -inc_queue_length(Q, MsgBuf, Count) -> - {NewCount, MsgBufTail} = - case queue:out_r(MsgBuf) of - {empty, MsgBuf1} -> {Count, MsgBuf1}; - {{value, {Q, Len}}, MsgBuf1} -> {Len + Count, MsgBuf1}; - {{value, _}, _MsgBuf1} -> {Count, MsgBuf} - end, - queue:in({Q, NewCount}, MsgBufTail). - -dec_queue_length(Count, State = #mqstate { queue = Q, msg_buf = MsgBuf }) -> - case queue:out(MsgBuf) of - {{value, {Q, Len}}, MsgBuf1} -> - case Len of - Count -> - maybe_prefetch(State #mqstate { msg_buf = MsgBuf1 }); - _ when Len > Count -> - State #mqstate { msg_buf = queue:in_r({Q, Len-Count}, - MsgBuf1)} - end; - _ -> State - end. - -maybe_prefetch(State = #mqstate { prefetcher = undefined, - mode = mixed, - msg_buf = MsgBuf, - queue = Q }) -> - case queue:peek(MsgBuf) of - {value, {Q, Count}} -> {ok, Prefetcher} = - rabbit_queue_prefetcher:start_link(Q, Count), - State #mqstate { prefetcher = Prefetcher }; - _ -> State - end; -maybe_prefetch(State) -> - State. - -publish(Msg, State = #mqstate { mode = disk, queue = Q, length = Length, - msg_buf = MsgBuf, memory_size = QSize, - memory_gain = Gain }) -> - MsgBuf1 = inc_queue_length(Q, MsgBuf, 1), - ok = rabbit_disk_queue:publish(Q, Msg, false), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_gain = Gain + MsgSize, - memory_size = QSize + MsgSize, - msg_buf = MsgBuf1, length = Length + 1 }}; -publish(Msg = #basic_message { is_persistent = IsPersistent }, State = - #mqstate { queue = Q, mode = mixed, is_durable = IsDurable, - msg_buf = MsgBuf, length = Length, memory_size = QSize, - memory_gain = Gain }) -> - ok = case IsDurable andalso IsPersistent of - true -> rabbit_disk_queue:publish(Q, Msg, false); - false -> ok - end, - MsgSize = size_of_message(Msg), - {ok, State #mqstate { msg_buf = queue:in({Msg, false}, MsgBuf), - length = Length + 1, memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -%% Assumption here is that the queue is empty already (only called via -%% attempt_immediate_delivery). -publish_delivered(Msg = - #basic_message { guid = MsgId, is_persistent = IsPersistent}, - State = - #mqstate { mode = Mode, is_durable = IsDurable, - queue = Q, length = 0, - memory_size = QSize, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:publish(Q, Msg, true), - MsgSize = size_of_message(Msg), - State1 = State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }, - case IsDurable andalso IsPersistent of - true -> - %% must call phantom_deliver otherwise the msg remains at - %% the head of the queue. This is synchronous, but - %% unavoidable as we need the AckTag - {MsgId, IsPersistent, true, AckTag, 0} = - rabbit_disk_queue:phantom_deliver(Q), - {ok, AckTag, State1}; - false -> - %% in this case, we don't actually care about the ack, so - %% auto ack it (asynchronously). - ok = rabbit_disk_queue:auto_ack_next_message(Q), - {ok, noack, State1} - end; -publish_delivered(Msg, State = - #mqstate { mode = mixed, length = 0, memory_size = QSize, - memory_gain = Gain }) -> - MsgSize = size_of_message(Msg), - {ok, noack, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -deliver(State = #mqstate { length = 0 }) -> - {empty, State}; -deliver(State = #mqstate { msg_buf = MsgBuf, queue = Q, - is_durable = IsDurable, length = Length, - prefetcher = Prefetcher }) -> - {{value, Value}, MsgBuf1} = queue:out(MsgBuf), - Rem = Length - 1, - State1 = State #mqstate { length = Rem }, - case Value of - {Msg = #basic_message { guid = MsgId, is_persistent = IsPersistent }, - IsDelivered} -> - AckTag = - case IsDurable andalso IsPersistent of - true -> - {MsgId, IsPersistent, IsDelivered, AckTag1, _PRem} - = rabbit_disk_queue:phantom_deliver(Q), - AckTag1; - false -> - noack - end, - State2 = maybe_prefetch(State1 #mqstate { msg_buf = MsgBuf1 }), - {{Msg, IsDelivered, AckTag, Rem}, State2}; - {Msg = #basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTag} -> - %% message has come via the prefetcher, thus it's been - %% delivered. If it's not persistent+durable, we should - %% ack it now - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, - State1 #mqstate { msg_buf = MsgBuf1 }}; - _ when Prefetcher == undefined -> - State2 = dec_queue_length(1, State1), - {Msg = #basic_message { is_persistent = IsPersistent }, - _Size, IsDelivered, AckTag, _PersistRem} - = rabbit_disk_queue:deliver(Q), - AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), - {{Msg, IsDelivered, AckTag1, Rem}, State2}; - _ -> - case rabbit_queue_prefetcher:drain(Prefetcher) of - empty -> deliver(State #mqstate { prefetcher = undefined }); - {Fetched, Len, Status} -> - State2 = #mqstate { msg_buf = MsgBuf2 } = - dec_queue_length(Len, State), - deliver(State2 #mqstate - { msg_buf = queue:join(Fetched, MsgBuf2), - prefetcher = case Status of - finished -> undefined; - continuing -> Prefetcher - end }) - end - end. - -maybe_ack(_Q, true, true, AckTag) -> - AckTag; -maybe_ack(Q, _, _, AckTag) -> - ok = rabbit_disk_queue:ack(Q, [AckTag]), - noack. - -remove_noacks(MsgsWithAcks) -> - lists:foldl( - fun ({Msg, noack}, {AccAckTags, AccSize}) -> - {AccAckTags, size_of_message(Msg) + AccSize}; - ({Msg, AckTag}, {AccAckTags, AccSize}) -> - {[AckTag | AccAckTags], size_of_message(Msg) + AccSize} - end, {[], 0}, MsgsWithAcks). - -ack(MsgsWithAcks, State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss }) -> - {AckTags, ASize} = remove_noacks(MsgsWithAcks), - ok = case AckTags of - [] -> ok; - _ -> rabbit_disk_queue:ack(Q, AckTags) - end, - State1 = State #mqstate { memory_size = QSize - ASize, - memory_loss = Loss + ASize }, - {ok, State1}. - -tx_publish(Msg = #basic_message { is_persistent = IsPersistent }, - State = #mqstate { mode = Mode, memory_size = QSize, - is_durable = IsDurable, memory_gain = Gain }) - when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> - ok = rabbit_disk_queue:tx_publish(Msg), - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}; -tx_publish(Msg, State = #mqstate { mode = mixed, memory_size = QSize, - memory_gain = Gain }) -> - %% this message will reappear in the tx_commit, so ignore for now - MsgSize = size_of_message(Msg), - {ok, State #mqstate { memory_size = QSize + MsgSize, - memory_gain = Gain + MsgSize }}. - -only_msg_ids(Pubs) -> - lists:map(fun (Msg) -> {Msg #basic_message.guid, false} end, Pubs). - -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = disk, queue = Q, length = Length, - memory_size = QSize, memory_loss = Loss, - msg_buf = MsgBuf }) -> - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = if ([] == Publishes) andalso ([] == RealAcks) -> ok; - true -> rabbit_disk_queue:tx_commit(Q, only_msg_ids(Publishes), - RealAcks) - end, - Len = erlang:length(Publishes), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len), - memory_size = QSize - ASize, - memory_loss = Loss + ASize }}; -tx_commit(Publishes, MsgsWithAcks, - State = #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, - is_durable = IsDurable, length = Length, - memory_size = QSize, memory_loss = Loss }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl(fun (Msg = #basic_message { is_persistent = IsPersistent }, - {Acc, MsgBuf2}) -> - Acc1 = - case IsPersistent andalso IsDurable of - true -> [ {Msg #basic_message.guid, false} - | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, false}, MsgBuf2)} - end, {[], MsgBuf}, Publishes), - {RealAcks, ASize} = remove_noacks(MsgsWithAcks), - ok = case ([] == PersistentPubs) andalso ([] == RealAcks) of - true -> ok; - false -> rabbit_disk_queue:tx_commit( - Q, lists:reverse(PersistentPubs), RealAcks) - end, - {ok, State #mqstate { msg_buf = MsgBuf1, memory_size = QSize - ASize, - length = Length + erlang:length(Publishes), - memory_loss = Loss + ASize }}. - -tx_cancel(Publishes, State = #mqstate { mode = disk, memory_size = QSize, - memory_loss = Loss }) -> - {MsgIds, CSize} = - lists:foldl( - fun (Msg = #basic_message { guid = MsgId }, {MsgIdsAcc, CSizeAcc}) -> - {[MsgId | MsgIdsAcc], CSizeAcc + size_of_message(Msg)} - end, {[], 0}, Publishes), - ok = rabbit_disk_queue:tx_cancel(MsgIds), - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}; -tx_cancel(Publishes, State = #mqstate { mode = mixed, is_durable = IsDurable, - memory_size = QSize, - memory_loss = Loss }) -> - {PersistentPubs, CSize} = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent, - guid = MsgId }, {Acc, CSizeAcc}) -> - CSizeAcc1 = CSizeAcc + size_of_message(Msg), - {case IsPersistent of - true -> [MsgId | Acc]; - _ -> Acc - end, CSizeAcc1} - end, {[], 0}, Publishes), - ok = - if IsDurable -> - rabbit_disk_queue:tx_cancel(PersistentPubs); - true -> ok - end, - {ok, State #mqstate { memory_size = QSize - CSize, - memory_loss = Loss + CSize }}. - -%% [{Msg, AckTag}] -requeue(MessagesWithAckTags, State = #mqstate { mode = disk, queue = Q, - is_durable = IsDurable, - length = Length, - msg_buf = MsgBuf }) -> - %% here, we may have messages with no ack tags, because of the - %% fact they are not persistent, but nevertheless we want to - %% requeue them. This means publishing them delivered. - Requeue - = lists:foldl( - fun ({#basic_message { is_persistent = IsPersistent }, AckTag}, RQ) - when IsDurable andalso IsPersistent -> - [{AckTag, true} | RQ]; - ({Msg, noack}, RQ) -> - ok = case RQ == [] of - true -> ok; - false -> rabbit_disk_queue:requeue( - Q, lists:reverse(RQ)) - end, - ok = rabbit_disk_queue:publish(Q, Msg, true), - [] - end, [], MessagesWithAckTags), - ok = rabbit_disk_queue:requeue(Q, lists:reverse(Requeue)), - Len = erlang:length(MessagesWithAckTags), - {ok, State #mqstate { length = Length + Len, - msg_buf = inc_queue_length(Q, MsgBuf, Len) }}; -requeue(MessagesWithAckTags, State = #mqstate { mode = mixed, queue = Q, - msg_buf = MsgBuf, - is_durable = IsDurable, - length = Length }) -> - {PersistentPubs, MsgBuf1} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, AckTag}, - {Acc, MsgBuf2}) -> - Acc1 = - case IsDurable andalso IsPersistent of - true -> [{AckTag, true} | Acc]; - false -> Acc - end, - {Acc1, queue:in({Msg, true}, MsgBuf2)} - end, {[], MsgBuf}, MessagesWithAckTags), - ok = case PersistentPubs of - [] -> ok; - _ -> rabbit_disk_queue:requeue(Q, lists:reverse(PersistentPubs)) - end, - {ok, State #mqstate {msg_buf = MsgBuf1, - length = Length + erlang:length(MessagesWithAckTags)}}. - -purge(State = #mqstate { queue = Q, mode = disk, length = Count, - memory_loss = Loss, memory_size = QSize }) -> - Count = rabbit_disk_queue:purge(Q), - {Count, State #mqstate { length = 0, memory_size = 0, - memory_loss = Loss + QSize }}; -purge(State = #mqstate { queue = Q, mode = mixed, length = Length, - memory_loss = Loss, memory_size = QSize, - prefetcher = Prefetcher }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - rabbit_disk_queue:purge(Q), - {Length, - State #mqstate { msg_buf = queue:new(), length = 0, memory_size = 0, - memory_loss = Loss + QSize, prefetcher = undefined }}. - -delete_queue(State = #mqstate { queue = Q, memory_size = QSize, - memory_loss = Loss, prefetcher = Prefetcher - }) -> - case Prefetcher of - undefined -> ok; - _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) - end, - ok = rabbit_disk_queue:delete_queue(Q), - {ok, State #mqstate { length = 0, memory_size = 0, msg_buf = queue:new(), - memory_loss = Loss + QSize, prefetcher = undefined }}. - -length(#mqstate { length = Length }) -> - Length. - -is_empty(#mqstate { length = Length }) -> - 0 == Length. - -estimate_queue_memory_and_reset_counters(State = - #mqstate { memory_size = Size, memory_gain = Gain, memory_loss = Loss }) -> - {State #mqstate { memory_gain = 0, memory_loss = 0 }, 4 * Size, Gain, Loss}. - -info(#mqstate { mode = Mode }) -> - Mode. diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl new file mode 100644 index 00000000..d0d60ddf --- /dev/null +++ b/src/rabbit_persister.erl @@ -0,0 +1,523 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_persister). + +-behaviour(gen_server). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([transaction/1, extend_transaction/2, dirty_work/1, + commit_transaction/1, rollback_transaction/1, + force_snapshot/0, serial/0]). + +-include("rabbit.hrl"). + +-define(SERVER, ?MODULE). + +-define(LOG_BUNDLE_DELAY, 5). +-define(COMPLETE_BUNDLE_DELAY, 2). + +-define(HIBERNATE_AFTER, 10000). + +-define(MAX_WRAP_ENTRIES, 500). + +-define(PERSISTER_LOG_FORMAT_VERSION, {2, 4}). + +-record(pstate, {log_handle, entry_count, deadline, + pending_logs, pending_replies, + snapshot}). + +%% two tables for efficient persistency +%% one maps a key to a message +%% the other maps a key to one or more queues. +%% The aim is to reduce the overload of storing a message multiple times +%% when it appears in several queues. +-record(psnapshot, {serial, transactions, messages, queues}). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(qmsg() :: {amqqueue(), pkey()}). +-type(work_item() :: + {publish, message(), qmsg()} | + {deliver, qmsg()} | + {ack, qmsg()}). + +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(transaction/1 :: ([work_item()]) -> 'ok'). +-spec(extend_transaction/2 :: (txn(), [work_item()]) -> 'ok'). +-spec(dirty_work/1 :: ([work_item()]) -> 'ok'). +-spec(commit_transaction/1 :: (txn()) -> 'ok'). +-spec(rollback_transaction/1 :: (txn()) -> 'ok'). +-spec(force_snapshot/0 :: () -> 'ok'). +-spec(serial/0 :: () -> non_neg_integer()). + +-endif. + +%%---------------------------------------------------------------------------- + +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + +transaction(MessageList) -> + ?LOGDEBUG("transaction ~p~n", [MessageList]), + TxnKey = rabbit_guid:guid(), + gen_server:call(?SERVER, {transaction, TxnKey, MessageList}, infinity). + +extend_transaction(TxnKey, MessageList) -> + ?LOGDEBUG("extend_transaction ~p ~p~n", [TxnKey, MessageList]), + gen_server:cast(?SERVER, {extend_transaction, TxnKey, MessageList}). + +dirty_work(MessageList) -> + ?LOGDEBUG("dirty_work ~p~n", [MessageList]), + gen_server:cast(?SERVER, {dirty_work, MessageList}). + +commit_transaction(TxnKey) -> + ?LOGDEBUG("commit_transaction ~p~n", [TxnKey]), + gen_server:call(?SERVER, {commit_transaction, TxnKey}, infinity). + +rollback_transaction(TxnKey) -> + ?LOGDEBUG("rollback_transaction ~p~n", [TxnKey]), + gen_server:cast(?SERVER, {rollback_transaction, TxnKey}). + +force_snapshot() -> + gen_server:call(?SERVER, force_snapshot, infinity). + +serial() -> + gen_server:call(?SERVER, serial, infinity). + +%%-------------------------------------------------------------------- + +init(_Args) -> + process_flag(trap_exit, true), + FileName = base_filename(), + ok = filelib:ensure_dir(FileName), + Snapshot = #psnapshot{serial = 0, + transactions = dict:new(), + messages = ets:new(messages, []), + queues = ets:new(queues, [])}, + LogHandle = + case disk_log:open([{name, rabbit_persister}, + {head, current_snapshot(Snapshot)}, + {file, FileName}]) of + {ok, LH} -> LH; + {repaired, LH, {recovered, Recovered}, {badbytes, Bad}} -> + WarningFun = if + Bad > 0 -> fun rabbit_log:warning/2; + true -> fun rabbit_log:info/2 + end, + WarningFun("Repaired persister log - ~p recovered, ~p bad~n", + [Recovered, Bad]), + LH + end, + {Res, LoadedSnapshot} = internal_load_snapshot(LogHandle, Snapshot), + NewSnapshot = LoadedSnapshot#psnapshot{ + serial = LoadedSnapshot#psnapshot.serial + 1}, + case Res of + ok -> + ok = take_snapshot(LogHandle, NewSnapshot); + {error, Reason} -> + rabbit_log:error("Failed to load persister log: ~p~n", [Reason]), + ok = take_snapshot_and_save_old(LogHandle, NewSnapshot) + end, + State = #pstate{log_handle = LogHandle, + entry_count = 0, + deadline = infinity, + pending_logs = [], + pending_replies = [], + snapshot = NewSnapshot}, + {ok, State}. + +handle_call({transaction, Key, MessageList}, From, State) -> + NewState = internal_extend(Key, MessageList, State), + do_noreply(internal_commit(From, Key, NewState)); +handle_call({commit_transaction, TxnKey}, From, State) -> + do_noreply(internal_commit(From, TxnKey, State)); +handle_call(force_snapshot, _From, State) -> + do_reply(ok, flush(true, State)); +handle_call(serial, _From, + State = #pstate{snapshot = #psnapshot{serial = Serial}}) -> + do_reply(Serial, State); +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast({rollback_transaction, TxnKey}, State) -> + do_noreply(internal_rollback(TxnKey, State)); +handle_cast({dirty_work, MessageList}, State) -> + do_noreply(internal_dirty_work(MessageList, State)); +handle_cast({extend_transaction, TxnKey, MessageList}, State) -> + do_noreply(internal_extend(TxnKey, MessageList, State)); +handle_cast(_Msg, State) -> + {noreply, State}. + +handle_info(timeout, State = #pstate{deadline = infinity}) -> + State1 = flush(true, State), + %% TODO: Once we drop support for R11B-5, we can change this to + %% {noreply, State1, hibernate}; + proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State1]); +handle_info(timeout, State) -> + do_noreply(flush(State)); +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, State = #pstate{log_handle = LogHandle}) -> + flush(State), + disk_log:close(LogHandle), + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, flush(State)}. + +%%-------------------------------------------------------------------- + +internal_extend(Key, MessageList, State) -> + log_work(fun (ML) -> {extend_transaction, Key, ML} end, + MessageList, State). + +internal_dirty_work(MessageList, State) -> + log_work(fun (ML) -> {dirty_work, ML} end, + MessageList, State). + +internal_commit(From, Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {commit_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + complete(From, Unit, State#pstate{snapshot = NewSnapshot}). + +internal_rollback(Key, State = #pstate{snapshot = Snapshot}) -> + Unit = {rollback_transaction, Key}, + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +complete(From, Item, State = #pstate{deadline = ExistingDeadline, + pending_logs = Logs, + pending_replies = Waiting}) -> + State#pstate{deadline = compute_deadline( + ?COMPLETE_BUNDLE_DELAY, ExistingDeadline), + pending_logs = [Item | Logs], + pending_replies = [From | Waiting]}. + +%% This is made to limit disk usage by writing messages only once onto +%% disk. We keep a table associating pkeys to messages, and provided +%% the list of messages to output is left to right, we can guarantee +%% that pkeys will be a backreference to a message in memory when a +%% "tied" is met. +log_work(CreateWorkUnit, MessageList, + State = #pstate{ + snapshot = Snapshot = #psnapshot{ + messages = Messages}}) -> + Unit = CreateWorkUnit( + rabbit_misc:map_in_order( + fun(M = {publish, Message, QK = {_QName, PKey}}) -> + case ets:lookup(Messages, PKey) of + [_] -> {tied, QK}; + [] -> ets:insert(Messages, {PKey, Message}), + M + end; + (M) -> M + end, + MessageList)), + NewSnapshot = internal_integrate1(Unit, Snapshot), + log(State#pstate{snapshot = NewSnapshot}, Unit). + +log(State = #pstate{deadline = ExistingDeadline, pending_logs = Logs}, + Message) -> + State#pstate{deadline = compute_deadline(?LOG_BUNDLE_DELAY, + ExistingDeadline), + pending_logs = [Message | Logs]}. + +base_filename() -> + rabbit_mnesia:dir() ++ "/rabbit_persister.LOG". + +take_snapshot(LogHandle, OldFileName, Snapshot) -> + ok = disk_log:sync(LogHandle), + %% current_snapshot is the Head (ie. first thing logged) + ok = disk_log:reopen(LogHandle, OldFileName, current_snapshot(Snapshot)). + +take_snapshot(LogHandle, Snapshot) -> + OldFileName = lists:flatten(base_filename() ++ ".previous"), + file:delete(OldFileName), + rabbit_log:info("Rolling persister log to ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +take_snapshot_and_save_old(LogHandle, Snapshot) -> + {MegaSecs, Secs, MicroSecs} = erlang:now(), + Timestamp = MegaSecs * 1000000 + Secs * 1000 + MicroSecs, + OldFileName = lists:flatten(io_lib:format("~s.saved.~p", + [base_filename(), Timestamp])), + rabbit_log:info("Saving persister log in ~p~n", [OldFileName]), + ok = take_snapshot(LogHandle, OldFileName, Snapshot). + +maybe_take_snapshot(Force, State = #pstate{entry_count = EntryCount, + log_handle = LH, + snapshot = Snapshot}) + when Force orelse EntryCount >= ?MAX_WRAP_ENTRIES -> + ok = take_snapshot(LH, Snapshot), + State#pstate{entry_count = 0}; +maybe_take_snapshot(_Force, State) -> + State. + +later_ms(DeltaMilliSec) -> + {MegaSec, Sec, MicroSec} = now(), + %% Note: not normalised. Unimportant for this application. + {MegaSec, Sec, MicroSec + (DeltaMilliSec * 1000)}. + +%% Result = B - A, more or less +time_diff({B1, B2, B3}, {A1, A2, A3}) -> + (B1 - A1) * 1000000 + (B2 - A2) + (B3 - A3) / 1000000.0 . + +compute_deadline(TimerDelay, infinity) -> + later_ms(TimerDelay); +compute_deadline(_TimerDelay, ExistingDeadline) -> + ExistingDeadline. + +compute_timeout(infinity) -> + ?HIBERNATE_AFTER; +compute_timeout(Deadline) -> + DeltaMilliSec = time_diff(Deadline, now()) * 1000.0, + if + DeltaMilliSec =< 1 -> + 0; + true -> + round(DeltaMilliSec) + end. + +do_noreply(State = #pstate{deadline = Deadline}) -> + {noreply, State, compute_timeout(Deadline)}. + +do_reply(Reply, State = #pstate{deadline = Deadline}) -> + {reply, Reply, State, compute_timeout(Deadline)}. + +flush(State) -> flush(false, State). + +flush(ForceSnapshot, State = #pstate{pending_logs = PendingLogs, + pending_replies = Waiting, + log_handle = LogHandle}) -> + State1 = if PendingLogs /= [] -> + disk_log:alog(LogHandle, lists:reverse(PendingLogs)), + State#pstate{entry_count = State#pstate.entry_count + 1}; + true -> + State + end, + State2 = maybe_take_snapshot(ForceSnapshot, State1), + if Waiting /= [] -> + ok = disk_log:sync(LogHandle), + lists:foreach(fun (From) -> gen_server:reply(From, ok) end, + Waiting); + true -> + ok + end, + State2#pstate{deadline = infinity, + pending_logs = [], + pending_replies = []}. + +current_snapshot(_Snapshot = #psnapshot{serial = Serial, + transactions= Ts, + messages = Messages, + queues = Queues}) -> + %% Avoid infinite growth of the table by removing messages not + %% bound to a queue anymore + prune_table(Messages, ets:foldl( + fun ({{_QName, PKey}, _Delivered}, S) -> + sets:add_element(PKey, S) + end, sets:new(), Queues)), + InnerSnapshot = {{serial, Serial}, + {txns, Ts}, + {messages, ets:tab2list(Messages)}, + {queues, ets:tab2list(Queues)}}, + ?LOGDEBUG("Inner snapshot: ~p~n", [InnerSnapshot]), + {persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + term_to_binary(InnerSnapshot)}. + +prune_table(Tab, Keys) -> + true = ets:safe_fixtable(Tab, true), + ok = prune_table(Tab, Keys, ets:first(Tab)), + true = ets:safe_fixtable(Tab, false). + +prune_table(_Tab, _Keys, '$end_of_table') -> ok; +prune_table(Tab, Keys, Key) -> + case sets:is_element(Key, Keys) of + true -> ok; + false -> ets:delete(Tab, Key) + end, + prune_table(Tab, Keys, ets:next(Tab, Key)). + +internal_load_snapshot(LogHandle, + Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + {K, [Loaded_Snapshot | Items]} = disk_log:chunk(LogHandle, start), + case check_version(Loaded_Snapshot) of + {ok, StateBin} -> + {{serial, Serial}, {txns, Ts}, {messages, Ms}, {queues, Qs}} = + binary_to_term(StateBin), + true = ets:insert(Messages, Ms), + true = ets:insert(Queues, Qs), + Snapshot1 = replay(Items, LogHandle, K, + Snapshot#psnapshot{ + serial = Serial, + transactions = Ts}), + Snapshot2 = requeue_messages(Snapshot1), + %% uncompleted transactions are discarded - this is TRTTD + %% since we only get into this code on node restart, so + %% any uncompleted transactions will have been aborted. + {ok, Snapshot2#psnapshot{transactions = dict:new()}}; + {error, Reason} -> {{error, Reason}, Snapshot} + end. + +check_version({persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, + StateBin}) -> + {ok, StateBin}; +check_version({persist_snapshot, {vsn, Vsn}, _StateBin}) -> + {error, {unsupported_persister_log_format, Vsn}}; +check_version(_Other) -> + {error, unrecognised_persister_log_format}. + +requeue_messages(Snapshot = #psnapshot{messages = Messages, + queues = Queues}) -> + Work = ets:foldl(fun accumulate_requeues/2, dict:new(), Queues), + %% unstable parallel map, because order doesn't matter + L = lists:append( + rabbit_misc:upmap( + %% we do as much work as possible in spawned worker + %% processes, but we need to make sure the ets:inserts are + %% performed in self() + fun ({QName, Requeues}) -> + requeue(QName, Requeues, Messages) + end, dict:to_list(Work))), + NewMessages = [{K, M} || {{_Q, K}, M, _D} <- L], + NewQueues = [{QK, D} || {QK, _M, D} <- L], + ets:delete_all_objects(Messages), + ets:delete_all_objects(Queues), + true = ets:insert(Messages, NewMessages), + true = ets:insert(Queues, NewQueues), + %% contains the mutated messages and queues tables + Snapshot. + +accumulate_requeues({{QName, PKey}, Delivered}, Acc) -> + Requeue = {PKey, Delivered}, + dict:update(QName, + fun (Requeues) -> [Requeue | Requeues] end, + [Requeue], + Acc). + +requeue(QName, Requeues, Messages) -> + case rabbit_amqqueue:lookup(QName) of + {ok, #amqqueue{pid = QPid}} -> + RequeueMessages = + [{{QName, PKey}, Message, Delivered} || + {PKey, Delivered} <- Requeues, + {_, Message} <- ets:lookup(Messages, PKey)], + rabbit_amqqueue:redeliver( + QPid, + %% Messages published by the same process receive + %% persistence keys that are monotonically + %% increasing. Since message ordering is defined on a + %% per-channel basis, and channels are bound to specific + %% processes, sorting the list does provide the correct + %% ordering properties. + [{Message, Delivered} || {_, Message, Delivered} <- + lists:sort(RequeueMessages)]), + RequeueMessages; + {error, not_found} -> + [] + end. + +replay([], LogHandle, K, Snapshot) -> + case disk_log:chunk(LogHandle, K) of + {K1, Items} -> + replay(Items, LogHandle, K1, Snapshot); + {K1, Items, Badbytes} -> + rabbit_log:warning("~p bad bytes recovering persister log~n", + [Badbytes]), + replay(Items, LogHandle, K1, Snapshot); + eof -> Snapshot + end; +replay([Item | Items], LogHandle, K, Snapshot) -> + NewSnapshot = internal_integrate_messages(Item, Snapshot), + replay(Items, LogHandle, K, NewSnapshot). + +internal_integrate_messages(Items, Snapshot) -> + lists:foldl(fun (Item, Snap) -> internal_integrate1(Item, Snap) end, + Snapshot, Items). + +internal_integrate1({extend_transaction, Key, MessageList}, + Snapshot = #psnapshot {transactions = Transactions}) -> + NewTransactions = + dict:update(Key, + fun (MessageLists) -> [MessageList | MessageLists] end, + [MessageList], + Transactions), + Snapshot#psnapshot{transactions = NewTransactions}; +internal_integrate1({rollback_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions}) -> + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; +internal_integrate1({commit_transaction, Key}, + Snapshot = #psnapshot{transactions = Transactions, + messages = Messages, + queues = Queues}) -> + case dict:find(Key, Transactions) of + {ok, MessageLists} -> + ?LOGDEBUG("persist committing txn ~p~n", [Key]), + lists:foreach(fun (ML) -> perform_work(ML, Messages, Queues) end, + lists:reverse(MessageLists)), + Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; + error -> + Snapshot + end; +internal_integrate1({dirty_work, MessageList}, + Snapshot = #psnapshot {messages = Messages, + queues = Queues}) -> + perform_work(MessageList, Messages, Queues), + Snapshot. + +perform_work(MessageList, Messages, Queues) -> + lists:foreach( + fun (Item) -> perform_work_item(Item, Messages, Queues) end, + MessageList). + +perform_work_item({publish, Message, QK = {_QName, PKey}}, Messages, Queues) -> + ets:insert(Messages, {PKey, Message}), + ets:insert(Queues, {QK, false}); + +perform_work_item({tied, QK}, _Messages, Queues) -> + ets:insert(Queues, {QK, false}); + +perform_work_item({deliver, QK}, _Messages, Queues) -> + %% from R12B-2 onward we could use ets:update_element/3 here + ets:delete(Queues, QK), + ets:insert(Queues, {QK, true}); + +perform_work_item({ack, QK}, _Messages, Queues) -> + ets:delete(Queues, QK). diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl deleted file mode 100644 index 5a6c8b39..00000000 --- a/src/rabbit_queue_mode_manager.erl +++ /dev/null @@ -1,496 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_mode_manager). - --behaviour(gen_server2). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([register/5, report_memory/3, report_memory/5, info/0, - pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). - --define(TOTAL_TOKENS, 10000000). --define(ACTIVITY_THRESHOLD, 25). - --define(SERVER, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> - ({'ok', pid()} | 'ignore' | {'error', any()})). --spec(register/5 :: (pid(), boolean(), atom(), atom(), list()) -> 'ok'). --spec(report_memory/3 :: (pid(), non_neg_integer(), bool()) -> 'ok'). --spec(report_memory/5 :: (pid(), non_neg_integer(), - (non_neg_integer() | 'undefined'), - (non_neg_integer() | 'undefined'), bool()) -> - 'ok'). --spec(pin_to_disk/1 :: (pid()) -> 'ok'). --spec(unpin_from_disk/1 :: (pid()) -> 'ok'). --spec(info/0 :: () -> [{atom(), any()}]). --spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). - --endif. - --record(state, { available_tokens, - mixed_queues, - callbacks, - tokens_per_byte, - lowrate, - hibernate, - disk_mode_pins, - unevictable, - alarmed - }). - -%% Token-credit based memory management - -%% Start off by working out the amount of memory available in the -%% system (RAM). Then, work out how many tokens each byte corresponds -%% to. This is the tokens_per_byte field. When a process registers, it -%% must provide an M-F-A triple to a function that needs one further -%% argument, which is the new mode. This will either be 'mixed' or -%% 'disk'. -%% -%% Processes then report their own memory usage, in bytes, and the -%% manager takes care of the rest. -%% -%% There are a finite number of tokens in the system. These are -%% allocated to processes as they are requested. We keep track of -%% processes which have hibernated, and processes that are doing only -%% a low rate of work. When a request for memory can't be satisfied, -%% we try and evict processes first from the hibernated group, and -%% then from the lowrate group. The hibernated group is a simple -%% queue, and so is implicitly sorted by the order in which processes -%% were added to the queue. This means that when removing from the -%% queue, we hibernate the sleepiest pid first. The lowrate group is a -%% priority queue, where the priority is the truncated log (base e) of -%% the amount of memory allocated. Thus when we remove from the queue, -%% we first remove the queue from the highest bucket. -%% -%% If the request still can't be satisfied after evicting to disk -%% everyone from those two groups (and note that we check first -%% whether or not freeing them would make available enough tokens to -%% satisfy the request rather than just sending all those queues to -%% disk and then going "whoops, didn't help after all"), then we send -%% the requesting process to disk. When a queue registers, it can -%% declare itself "unevictable". If a queue is unevictable then it -%% will not be sent to disk as a result of other processes requesting -%% more memory. However, if it itself is requesting more memory and -%% that request can't be satisfied then it is still sent to disk as -%% before. This feature is only used by the disk_queue, because if the -%% disk queue is not being used, and hibernates, and then memory -%% pressure gets tight, the disk_queue would typically be one of the -%% first processes to get sent to disk, which cripples -%% performance. Thus by setting it unevictable, it is only possible -%% for the disk_queue to be sent to disk when it is active and -%% attempting to increase its memory allocation. -%% -%% If a process has been sent to disk, it continues making -%% requests. As soon as a request can be satisfied (and this can -%% include sending other processes to disk in the way described -%% above), it will be told to come back into mixed mode. We do not -%% keep any information about queues in disk mode. -%% -%% Note that the lowrate and hibernate groups can get very out of -%% date. This is fine, and somewhat unavoidable given the absence of -%% useful APIs for queues. Thus we allow them to get out of date -%% (processes will be left in there when they change groups, -%% duplicates can appear, dead processes are not pruned etc etc etc), -%% and when we go through the groups, summing up their amount of -%% memory, we tidy up at that point. -%% -%% A process which is not evicted to disk, and is requesting a smaller -%% amount of RAM than its last request will always be satisfied. A -%% mixed-mode process that is busy but consuming an unchanging amount -%% of RAM will never be sent to disk. The disk_queue is also managed -%% in the same way. This means that a queue that has gone back to -%% being mixed after being in disk mode now has its messages counted -%% twice as they are counted both in the request made by the queue -%% (even though they may not yet be in RAM (though see the -%% prefetcher)) and also by the disk_queue. Thus the amount of -%% available RAM must be higher when going disk -> mixed than when -%% going mixed -> disk. This is fairly sensible as it reduces the risk -%% of any oscillations occurring. -%% -%% The queue process deliberately reports 4 times its estimated RAM -%% usage, and the disk_queue 2.5 times. In practise, this seems to -%% work well. Note that we are deliberately running out of tokes a -%% little early because of the fact that the mixed -> disk transition -%% can transiently eat a lot of memory and take some time (flushing a -%% few million messages to disk is never going to be instantaneous). - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -register(Pid, Unevictable, Module, Function, Args) -> - gen_server2:cast(?SERVER, {register, Pid, Unevictable, - Module, Function, Args}). - -pin_to_disk(Pid) -> - gen_server2:call(?SERVER, {pin_to_disk, Pid}). - -unpin_from_disk(Pid) -> - gen_server2:call(?SERVER, {unpin_from_disk, Pid}). - -report_memory(Pid, Memory, Hibernating) -> - report_memory(Pid, Memory, undefined, undefined, Hibernating). - -report_memory(Pid, Memory, Gain, Loss, Hibernating) -> - gen_server2:cast(?SERVER, - {report_memory, Pid, Memory, Gain, Loss, Hibernating}). - -info() -> - gen_server2:call(?SERVER, info). - -conserve_memory(_Pid, Conserve) -> - gen_server2:pcast(?SERVER, 9, {conserve_memory, Conserve}). - -init([]) -> - process_flag(trap_exit, true), - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - {MemTotal, MemUsed, _BigProc} = memsup:get_memory_data(), - MemAvail = MemTotal - MemUsed, - TPB = if MemAvail == 0 -> 0; - true -> ?TOTAL_TOKENS / MemAvail - end, - {ok, #state { available_tokens = ?TOTAL_TOKENS, - mixed_queues = dict:new(), - callbacks = dict:new(), - tokens_per_byte = TPB, - lowrate = priority_queue:new(), - hibernate = queue:new(), - disk_mode_pins = sets:new(), - unevictable = sets:new(), - alarmed = false - }}. - -handle_call({pin_to_disk, Pid}, _From, - State = #state { mixed_queues = Mixed, - callbacks = Callbacks, - available_tokens = Avail, - disk_mode_pins = Pins }) -> - {Res, State1} = - case sets:is_element(Pid, Pins) of - true -> {ok, State}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - ok = set_queue_mode(Callbacks, Pid, disk), - {ok, State #state { mixed_queues = - dict:erase(Pid, Mixed), - available_tokens = Avail + OAlloc, - disk_mode_pins = - sets:add_element(Pid, Pins) - }}; - disk -> - {ok, State #state { disk_mode_pins = - sets:add_element(Pid, Pins) }} - end - end, - {reply, Res, State1}; - -handle_call({unpin_from_disk, Pid}, _From, - State = #state { disk_mode_pins = Pins }) -> - {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; - -handle_call(info, _From, State) -> - State1 = #state { available_tokens = Avail, - mixed_queues = Mixed, - lowrate = Lazy, - hibernate = Sleepy, - disk_mode_pins = Pins, - unevictable = Unevictable } = - free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying - {reply, [{ available_tokens, Avail }, - { mixed_queues, dict:to_list(Mixed) }, - { lowrate_queues, priority_queue:to_list(Lazy) }, - { hibernated_queues, queue:to_list(Sleepy) }, - { queues_pinned_to_disk, sets:to_list(Pins) }, - { unevictable_queues, sets:to_list(Unevictable) }], State1}. - - -handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, - State = #state { mixed_queues = Mixed, - available_tokens = Avail, - callbacks = Callbacks, - disk_mode_pins = Pins, - tokens_per_byte = TPB, - alarmed = Alarmed }) -> - Req = rabbit_misc:ceil(TPB * Memory), - LowRate = case {BytesGained, BytesLost} of - {undefined, _} -> false; - {_, undefined} -> false; - {G, L} -> G < ?ACTIVITY_THRESHOLD andalso - L < ?ACTIVITY_THRESHOLD - end, - MixedActivity = if Hibernating -> hibernate; - LowRate -> lowrate; - true -> active - end, - {StateN = #state { lowrate = Lazy, hibernate = Sleepy }, ActivityNew} = - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - Avail1 = Avail + OAlloc, - State1 = - #state { available_tokens = Avail2, mixed_queues = Mixed1 } - = free_upto(Pid, Req, - State #state { available_tokens = Avail1 }), - case Req > Avail2 of - true -> %% nowt we can do, send to disk - ok = set_queue_mode(Callbacks, Pid, disk), - {State1 #state { mixed_queues = - dict:erase(Pid, Mixed1) }, disk}; - false -> %% keep mixed - {State1 #state - { mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail2 - Req }, - MixedActivity} - end; - disk -> - case sets:is_element(Pid, Pins) orelse Alarmed of - true -> - {State, disk}; - false -> - State1 = #state { available_tokens = Avail1, - mixed_queues = Mixed1 } = - free_upto(Pid, Req, State), - case Req > Avail1 orelse Hibernating orelse LowRate of - true -> - %% not enough space, or no compelling - %% reason, so stay as disk - {State1, disk}; - false -> %% can go to mixed mode - set_queue_mode(Callbacks, Pid, mixed), - {State1 #state { - mixed_queues = - dict:store(Pid, {Req, MixedActivity}, Mixed1), - available_tokens = Avail1 - Req }, - MixedActivity} - end - end - end, - StateN1 = - case ActivityNew of - active -> StateN; - disk -> StateN; - lowrate -> - StateN #state { lowrate = add_to_lowrate(Pid, Req, Lazy) }; - hibernate -> - StateN #state { hibernate = queue:in(Pid, Sleepy) } - end, - {noreply, StateN1}; - -handle_cast({register, Pid, IsUnevictable, Module, Function, Args}, - State = #state { callbacks = Callbacks, - unevictable = Unevictable }) -> - _MRef = erlang:monitor(process, Pid), - Unevictable1 = case IsUnevictable of - true -> sets:add_element(Pid, Unevictable); - false -> Unevictable - end, - {noreply, State #state { callbacks = dict:store - (Pid, {Module, Function, Args}, Callbacks), - unevictable = Unevictable1 - }}; - -handle_cast({conserve_memory, Conserve}, State) -> - {noreply, State #state { alarmed = Conserve }}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #state { available_tokens = Avail, - mixed_queues = Mixed }) -> - State1 = case find_queue(Pid, Mixed) of - disk -> - State; - {mixed, {Alloc, _Activity}} -> - State #state { available_tokens = Avail + Alloc, - mixed_queues = dict:erase(Pid, Mixed) } - end, - {noreply, State1}; -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -add_to_lowrate(Pid, Alloc, Lazy) -> - Bucket = if Alloc == 0 -> 0; %% can't take log(0) - true -> trunc(math:log(Alloc)) %% log base e - end, - priority_queue:in({Pid, Bucket, Alloc}, Bucket, Lazy). - -find_queue(Pid, Mixed) -> - case dict:find(Pid, Mixed) of - {ok, Value} -> {mixed, Value}; - error -> disk - end. - -set_queue_mode(Callbacks, Pid, Mode) -> - {Module, Function, Args} = dict:fetch(Pid, Callbacks), - erlang:apply(Module, Function, Args ++ [Mode]). - -tidy_and_sum_lazy(IgnorePids, Lazy, Mixed) -> - tidy_and_sum(lowrate, Mixed, - fun (Lazy1) -> - case priority_queue:out(Lazy1) of - {empty, Lazy2} -> - {empty, Lazy2}; - {{value, {Pid, _Bucket, _Alloc}}, Lazy2} -> - {{value, Pid}, Lazy2} - end - end, fun add_to_lowrate/3, IgnorePids, Lazy, - priority_queue:new(), 0). - -tidy_and_sum_sleepy(IgnorePids, Sleepy, Mixed) -> - tidy_and_sum(hibernate, Mixed, fun queue:out/1, - fun (Pid, _Alloc, Queue) -> queue:in(Pid, Queue) end, - IgnorePids, Sleepy, queue:new(), 0). - -tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, DupCheckSet, - CataInit, AnaInit, AllocAcc) -> - case Catamorphism(CataInit) of - {empty, _CataInit} -> {AnaInit, AllocAcc}; - {{value, Pid}, CataInit1} -> - {DupCheckSet1, AnaInit1, AllocAcc1} = - case sets:is_element(Pid, DupCheckSet) of - true -> - {DupCheckSet, AnaInit, AllocAcc}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {Alloc, AtomExpected}} -> - {sets:add_element(Pid, DupCheckSet), - Anamorphism(Pid, Alloc, AnaInit), - Alloc + AllocAcc}; - _ -> - {DupCheckSet, AnaInit, AllocAcc} - end - end, - tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, - DupCheckSet1, CataInit1, AnaInit1, AllocAcc1) - end. - -free_upto_lazy(IgnorePids, Callbacks, Lazy, Mixed, Req) -> - free_from( - Callbacks, - fun(_Mixed, Lazy1, LazyAcc) -> - case priority_queue:out(Lazy1) of - {empty, _Lazy2} -> - empty; - {{value, V = {Pid, Bucket, Alloc}}, Lazy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Lazy2, - priority_queue:in(V, Bucket, LazyAcc)}; - false -> {value, Lazy2, Pid, Alloc} - end - end - end, fun priority_queue:join/2, Mixed, Lazy, priority_queue:new(), Req). - -free_upto_sleepy(IgnorePids, Callbacks, Sleepy, Mixed, Req) -> - free_from(Callbacks, - fun(Mixed1, Sleepy1, SleepyAcc) -> - case queue:out(Sleepy1) of - {empty, _Sleepy2} -> - empty; - {{value, Pid}, Sleepy2} -> - case sets:is_element(Pid, IgnorePids) of - true -> {skip, Sleepy2, - queue:in(Pid, SleepyAcc)}; - false -> {Alloc, hibernate} = - dict:fetch(Pid, Mixed1), - {value, Sleepy2, Pid, Alloc} - end - end - end, fun queue:join/2, Mixed, Sleepy, queue:new(), Req). - -free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit, AnaInit, Req) -> - case Hylomorphism(Mixed, CataInit, AnaInit) of - empty -> - {AnaInit, Mixed, Req}; - {skip, CataInit1, AnaInit1} -> - free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit1, - AnaInit1, Req); - {value, CataInit1, Pid, Alloc} -> - Mixed1 = dict:erase(Pid, Mixed), - ok = set_queue_mode(Callbacks, Pid, disk), - case Req > Alloc of - true -> free_from(Callbacks, Hylomorphism, BaseCase, Mixed1, - CataInit1, AnaInit, Req - Alloc); - false -> {BaseCase(CataInit1, AnaInit), Mixed1, Req - Alloc} - end - end. - -free_upto(Pid, Req, State = #state { available_tokens = Avail, - mixed_queues = Mixed, - callbacks = Callbacks, - lowrate = Lazy, - hibernate = Sleepy, - unevictable = Unevictable }) - when Req > Avail -> - Unevictable1 = sets:add_element(Pid, Unevictable), - {Sleepy1, SleepySum} = tidy_and_sum_sleepy(Unevictable1, Sleepy, Mixed), - case Req > Avail + SleepySum of - true -> %% not enough in sleepy, have a look in lazy too - {Lazy1, LazySum} = tidy_and_sum_lazy(Unevictable1, Lazy, Mixed), - case Req > Avail + SleepySum + LazySum of - true -> %% can't free enough, just return tidied state - State #state { lowrate = Lazy1, hibernate = Sleepy1 }; - false -> %% need to free all of sleepy, and some of lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, - Sleepy1, Mixed, Req), - {Lazy2, Mixed2, ReqRem1} = - free_upto_lazy(Unevictable1, Callbacks, - Lazy1, Mixed1, ReqRem), - %% ReqRem1 will be <= 0 because it's - %% likely we'll have freed more than we - %% need, thus Req - ReqRem1 is total freed - State #state { available_tokens = Avail + (Req - ReqRem1), - mixed_queues = Mixed2, lowrate = Lazy2, - hibernate = Sleepy2 } - end; - false -> %% enough available in sleepy, don't touch lazy - {Sleepy2, Mixed1, ReqRem} = - free_upto_sleepy(Unevictable1, Callbacks, Sleepy1, Mixed, Req), - State #state { available_tokens = Avail + (Req - ReqRem), - mixed_queues = Mixed1, hibernate = Sleepy2 } - end; -free_upto(_Pid, _Req, State) -> - State. diff --git a/src/rabbit_queue_prefetcher.erl b/src/rabbit_queue_prefetcher.erl deleted file mode 100644 index c847848d..00000000 --- a/src/rabbit_queue_prefetcher.erl +++ /dev/null @@ -1,258 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_prefetcher). - --behaviour(gen_server2). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([publish/2, drain/1, drain_and_stop/1]). - --include("rabbit.hrl"). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(pstate, - { msg_buf, - buf_length, - target_count, - fetched_count, - queue, - queue_mref - }). - -%% The design of the prefetcher is based on the following: -%% -%% a) It must issue low-priority (-ve) requests to the disk queue for -%% the next message. -%% b) If the prefetcher is empty and the amqqueue_process -%% (mixed_queue) asks it for a message, it must exit immediately, -%% telling the mixed_queue that it is empty so that the mixed_queue -%% can then take the more efficient path and communicate with the -%% disk_queue directly -%% c) No message can accidentally be delivered twice, or lost -%% d) The prefetcher must only cause load when the disk_queue is -%% otherwise idle, and must not worsen performance in a loaded -%% situation. -%% -%% As such, it's a little tricky. It must never issue a call to the -%% disk_queue - if it did, then that could potentially block, thus -%% causing pain to the mixed_queue that needs fast answers as to -%% whether the prefetcher has prefetched content or not. It behaves as -%% follows: -%% -%% 1) disk_queue:prefetch(Q) -%% This is a low priority cast -%% -%% 2) The disk_queue may pick up the cast, at which point it'll read -%% the next message and invoke prefetcher:publish(Msg) - normal -%% priority cast. Note that in the mean time, the mixed_queue could -%% have come along, found the prefetcher empty, asked it to -%% exit. This means the effective "reply" from the disk_queue will -%% go no where. As a result, the disk_queue must perform no -%% modification to the status of the message *or the queue* - do -%% not mark the message delivered, and do not advance the queue. If -%% it did advance the queue and the msg was then lost, then the -%% queue would have lost a msg that the mixed_queue would not pick -%% up. -%% -%% 3) The prefetcher hopefully receives the call from -%% prefetcher:publish(Msg). It replies immediately, and then adds -%% to its internal queue. A cast is not sufficient here because the -%% mixed_queue could come along, drain the prefetcher, thus -%% catching the msg just sent by the disk_queue and then call -%% disk_queue:deliver(Q) which is normal priority call, which could -%% overtake a reply cast from the prefetcher to the disk queue, -%% which would result in the same message being delivered -%% twice. Thus when the disk_queue calls prefetcher:publish(Msg), -%% it is briefly blocked. However, a) the prefetcher replies -%% immediately, and b) the prefetcher should never have more than -%% one item in its mailbox anyway, so this should not cause a -%% problem to the disk_queue. -%% -%% 4) The disk_queue receives the reply, marks the msg at the head of -%% the queue Q as delivered, and advances the Q to the next msg. -%% -%% 5) If the prefetcher has not met its target then it goes back to -%% 1). Otherwise it just sits and waits for the mixed_queue to -%% drain it. -%% -%% Now at some point, the mixed_queue will come along and will call -%% prefetcher:drain() - normal priority call. The prefetcher then -%% replies with its internal queue and the length of that queue. If -%% the prefetch target was reached, the prefetcher stops normally at -%% this point. If it hasn't been reached, then the prefetcher -%% continues to hang around (it almost certainly has issued a -%% disk_queue:prefetch(Q) cast and is waiting for a reply from the -%% disk_queue). -%% -%% If the mixed_queue calls prefetcher:drain() and the prefetcher's -%% internal queue is empty then the prefetcher replies with 'empty', -%% and it exits. This informs the mixed_queue that it should from now -%% on talk directly with the disk_queue and not via the -%% prefetcher. This is more efficient and the mixed_queue will use -%% normal priority blocking calls to the disk_queue and thus get -%% better service that way. -%% -%% The prefetcher may at this point have issued a -%% disk_queue:prefetch(Q) cast which has not yet been picked up by the -%% disk_queue. This msg won't go away and the disk_queue will -%% eventually find it. However, when it does, it'll simply read the -%% next message from the queue (which could now be empty), possibly -%% populate the cache (no harm done) and try and call -%% prefetcher:publish(Msg) which will result in an error, which the -%% disk_queue catches, as the publish call is to a non-existant -%% process. However, the state of the queue and the state of the -%% message has not been altered so the mixed_queue will be able to -%% fetch this message as if it had never been prefetched. -%% -%% The only point at which the queue is advanced and the message -%% marked as delivered is when the prefetcher replies to the publish -%% call. At this point the message has been received by the prefetcher -%% and so we guarantee it will be passed to the mixed_queue when the -%% mixed_queue tries to drain the prefetcher. We must therefore ensure -%% that this msg can't also be delivered to the mixed_queue directly -%% by the disk_queue through the mixed_queue calling -%% disk_queue:deliver(Q) which is why the prefetcher:publish function -%% is a call and not a cast, thus blocking the disk_queue. -%% -%% Finally, the prefetcher is only created when the mixed_queue is -%% operating in mixed mode and it sees that the next N messages are -%% all on disk, and the queue process is about to hibernate. During -%% this phase, the mixed_queue can be asked to go back to disk_only -%% mode. When this happens, it calls prefetcher:drain_and_stop() which -%% behaves like two consecutive calls to drain() - i.e. replies with -%% all prefetched messages and causes the prefetcher to exit. -%% -%% Note there is a flaw here in that we end up marking messages which -%% have come through the prefetcher as delivered even if they don't -%% get delivered (e.g. prefetcher fetches them, then broker -%% dies). However, the alternative is that the mixed_queue must do a -%% call to the disk_queue when it effectively passes them out to the -%% rabbit_writer. This would hurt performance, and even at that stage, -%% we have no guarantee that the message will really go out of the -%% socket. What we do still have is that messages which have the -%% redelivered bit set false really are guaranteed to have not been -%% delivered already. In theory, it's possible that the disk_queue -%% calls prefetcher:publish, blocks waiting for the reply. The -%% prefetcher grabs the message, is drained, the message goes out of -%% the socket and is delivered. The broker then crashes before the -%% disk_queue processes the reply from the prefetcher, thus the fact -%% the message has been delivered is not recorded. However, this can -%% only affect a single message at a time. I.e. there is a tiny chance -%% that the first message delivered on queue recovery that has the -%% redelivery bit set false, has in fact been delivered before. - -start_link(Queue, Count) -> - gen_server2:start_link(?MODULE, [Queue, Count, self()], []). - -publish(Prefetcher, Obj = { #basic_message {}, _Size, _IsDelivered, - _AckTag, _Remaining }) -> - gen_server2:call(Prefetcher, {publish, Obj}, infinity); -publish(Prefetcher, empty) -> - gen_server2:call(Prefetcher, publish_empty, infinity). - -drain(Prefetcher) -> - gen_server2:call(Prefetcher, drain, infinity). - -drain_and_stop(Prefetcher) -> - gen_server2:call(Prefetcher, drain_and_stop, infinity). - -init([Q, Count, QPid]) -> - %% link isn't enough because the signal will not appear if the - %% queue exits normally. Thus have to use monitor. - MRef = erlang:monitor(process, QPid), - State = #pstate { msg_buf = queue:new(), - buf_length = 0, - target_count = Count, - fetched_count = 0, - queue = Q, - queue_mref = MRef - }, - ok = rabbit_disk_queue:prefetch(Q), - {ok, State, infinity, {backoff, ?HIBERNATE_AFTER_MIN, - ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({publish, { Msg = #basic_message {}, - _Size, IsDelivered, AckTag, _Remaining }}, - DiskQueue, State = - #pstate { fetched_count = Fetched, target_count = Target, - msg_buf = MsgBuf, buf_length = Length, queue = Q - }) -> - gen_server2:reply(DiskQueue, ok), - Timeout = if Fetched + 1 == Target -> hibernate; - true -> ok = rabbit_disk_queue:prefetch(Q), - infinity - end, - MsgBuf1 = queue:in({Msg, IsDelivered, AckTag}, MsgBuf), - {noreply, State #pstate { fetched_count = Fetched + 1, - buf_length = Length + 1, - msg_buf = MsgBuf1 }, Timeout}; -handle_call(publish_empty, _From, State) -> - %% Very odd. This could happen if the queue is deleted or purged - %% and the mixed queue fails to shut us down. - {reply, ok, State, hibernate}; -handle_call(drain, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain, _From, State = #pstate { fetched_count = Count, - target_count = Count, - msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length, finished}, State}; -handle_call(drain, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {reply, {MsgBuf, Length, continuing}, - State #pstate { msg_buf = queue:new(), buf_length = 0 }, infinity}; -handle_call(drain_and_stop, _From, State = #pstate { buf_length = 0 }) -> - {stop, normal, empty, State}; -handle_call(drain_and_stop, _From, State = #pstate { msg_buf = MsgBuf, - buf_length = Length }) -> - {stop, normal, {MsgBuf, Length}, State}. - -handle_cast(Msg, State) -> - exit({unexpected_message_cast_to_prefetcher, Msg, State}). - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #pstate { queue_mref = MRef }) -> - %% this is the amqqueue_process going down, so we should go down - %% too - {stop, normal, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. -- cgit v1.2.1 From 9a0dca56fdace72794ecadfe425aadb20c229c9e Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 11:09:44 +0100 Subject: Matthew made a mess --- src/rabbit_alarm.erl | 52 +++++++++--------- src/rabbit_memsup.erl | 126 +++++++++++++++++++++++++++++++++++++++++++ src/rabbit_memsup_darwin.erl | 102 +++++++++++++++++++++++++++++++++++ src/rabbit_memsup_linux.erl | 99 ++++++++++------------------------ 4 files changed, 284 insertions(+), 95 deletions(-) create mode 100644 src/rabbit_memsup.erl create mode 100644 src/rabbit_memsup_darwin.erl diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 21999f16..309c9a0e 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -41,7 +41,7 @@ -define(MEMSUP_CHECK_INTERVAL, 1000). %% OSes on which we know memory alarms to be trustworthy --define(SUPPORTED_OS, [{unix, linux}]). +-define(SUPPORTED_OS, [{unix, linux}, {unix, darwin}]). -record(alarms, {alertees, system_memory_high_watermark = false}). @@ -136,33 +136,35 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- start_memsup() -> - Mod = case os:type() of - %% memsup doesn't take account of buffers or cache when - %% considering "free" memory - therefore on Linux we can - %% get memory alarms very easily without any pressure - %% existing on memory at all. Therefore we need to use - %% our own simple memory monitor. - %% - {unix, linux} -> rabbit_memsup_linux; - - %% Start memsup programmatically rather than via the - %% rabbitmq-server script. This is not quite the right - %% thing to do as os_mon checks to see if memsup is - %% available before starting it, but as memsup is - %% available everywhere (even on VXWorks) it should be - %% ok. - %% - %% One benefit of the programmatic startup is that we - %% can add our alarm_handler before memsup is running, - %% thus ensuring that we notice memory alarms that go - %% off on startup. - %% - _ -> memsup - end, + {Mod, Args} = + case os:type() of + %% memsup doesn't take account of buffers or cache when + %% considering "free" memory - therefore on Linux we can + %% get memory alarms very easily without any pressure + %% existing on memory at all. Therefore we need to use + %% our own simple memory monitor. + %% + {unix, linux} -> {rabbit_memsup, [rabbit_memsup_linux]}; + {unix, darwin} -> {rabbit_memsup, [rabbit_memsup_darwin]}; + + %% Start memsup programmatically rather than via the + %% rabbitmq-server script. This is not quite the right + %% thing to do as os_mon checks to see if memsup is + %% available before starting it, but as memsup is + %% available everywhere (even on VXWorks) it should be + %% ok. + %% + %% One benefit of the programmatic startup is that we + %% can add our alarm_handler before memsup is running, + %% thus ensuring that we notice memory alarms that go + %% off on startup. + %% + _ -> {memsup, []} + end, %% This is based on os_mon:childspec(memsup, true) {ok, _} = supervisor:start_child( os_mon_sup, - {memsup, {Mod, start_link, []}, + {memsup, {Mod, start_link, Args}, permanent, 2000, worker, [Mod]}), ok. diff --git a/src/rabbit_memsup.erl b/src/rabbit_memsup.erl new file mode 100644 index 00000000..5f242881 --- /dev/null +++ b/src/rabbit_memsup.erl @@ -0,0 +1,126 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_memsup). + +-behaviour(gen_server). + +-export([start_link/1]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([update/0]). + +-record(state, {memory_fraction, + timeout, + timer, + mod, + mod_state + }). + +-define(SERVER, memsup). %% must be the same as the standard memsup + +-define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_link/1 :: (atom()) -> {'ok', pid()} | 'ignore' | {'error', any()}). +-spec(update/0 :: () -> 'ok'). + +-endif. + +%%---------------------------------------------------------------------------- + +start_link(Args) -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). + +update() -> + gen_server:cast(?SERVER, update). + +%%---------------------------------------------------------------------------- + +init([Mod]) -> + Fraction = os_mon:get_env(memsup, system_memory_high_watermark), + TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), + InitState = Mod:init(), + State = #state { memory_fraction = Fraction, + timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, + timer = TRef, + mod = Mod, + mod_state = Mod:update(Fraction, InitState) }, + {ok, State}. + +start_timer(Timeout) -> + {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), + TRef. + +%% Export the same API as the real memsup. Note that +%% get_sysmem_high_watermark gives an int in the range 0 - 100, while +%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. +handle_call(get_sysmem_high_watermark, _From, State) -> + {reply, trunc(100 * State#state.memory_fraction), State}; + +handle_call({set_sysmem_high_watermark, Float}, _From, State) -> + {reply, ok, State#state{memory_fraction = Float}}; + +handle_call(get_check_interval, _From, State) -> + {reply, State#state.timeout, State}; + +handle_call({set_check_interval, Timeout}, _From, State) -> + {ok, cancel} = timer:cancel(State#state.timer), + {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; + +handle_call(get_memory_data, _From, + State = #state { mod = Mod, mod_state = ModState }) -> + {reply, Mod:get_memory_data(ModState), State}; + +handle_call(_Request, _From, State) -> + {noreply, State}. + +handle_cast(update, State = #state { memory_fraction = MemoryFraction, + mod = Mod, mod_state = ModState }) -> + ModState1 = Mod:update(MemoryFraction, ModState), + {noreply, State #state { mod_state = ModState1 }}; + +handle_cast(_Request, State) -> + {noreply, State}. + +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. diff --git a/src/rabbit_memsup_darwin.erl b/src/rabbit_memsup_darwin.erl new file mode 100644 index 00000000..990c5b99 --- /dev/null +++ b/src/rabbit_memsup_darwin.erl @@ -0,0 +1,102 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_memsup_darwin). + +-export([init/0, update/2, get_memory_data/1]). + +-record(state, {alarmed, + total_memory, + allocated_memory}). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(state() :: #state { alarmed :: boolean(), + total_memory :: ('undefined' | non_neg_integer()), + allocated_memory :: ('undefined' | non_neg_integer()) + }). + +-spec(init/0 :: () -> state()). +-spec(update/2 :: (float(), state()) -> state()). +-spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), + ('undefined' | pid())}). + +-endif. + +%%---------------------------------------------------------------------------- + +init() -> + #state{alarmed = false, + total_memory = undefined, + allocated_memory = undefined}. + +update(MemoryFraction, State = #state{ alarmed = Alarmed }) -> + File = os:cmd("/usr/bin/vm_stat"), + Lines = string:tokens(File, "\n"), + Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), + PageSize = dict:fetch(page_size, Dict), + Inactive = dict:fetch('Pages inactive', Dict), + Active = dict:fetch('Pages active', Dict), + Free = dict:fetch('Pages free', Dict), + Wired = dict:fetch('Pages wired down', Dict), + MemTotal = PageSize * (Inactive + Active + Free + Wired), + MemUsed = PageSize * (Active + Wired), + NewAlarmed = MemUsed / MemTotal > MemoryFraction, + case {Alarmed, NewAlarmed} of + {false, true} -> + alarm_handler:set_alarm({system_memory_high_watermark, []}); + {true, false} -> + alarm_handler:clear_alarm(system_memory_high_watermark); + _ -> + ok + end, + State#state{alarmed = NewAlarmed, + total_memory = MemTotal, allocated_memory = MemUsed}. + +get_memory_data(State) -> + {State#state.total_memory, State#state.allocated_memory, undefined}. + +%%---------------------------------------------------------------------------- + +%% A line looks like "Foo bar: 123456." +parse_line(Line) -> + [Name, RHS | _Rest] = string:tokens(Line, ":"), + case Name of + "Mach Virtual Memory Statistics" -> + ["(page", "size", "of", PageSize, "bytes)"] = + string:tokens(RHS, " "), + {page_size, list_to_integer(PageSize)}; + _ -> + [Value | _Rest1] = string:tokens(RHS, " ."), + {list_to_atom(Name), list_to_integer(Value)} + end. diff --git a/src/rabbit_memsup_linux.erl b/src/rabbit_memsup_linux.erl index ffdc7e99..460fd88f 100644 --- a/src/rabbit_memsup_linux.erl +++ b/src/rabbit_memsup_linux.erl @@ -31,74 +31,36 @@ -module(rabbit_memsup_linux). --behaviour(gen_server). +-export([init/0, update/2, get_memory_data/1]). --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0]). - --define(SERVER, memsup). %% must be the same as the standard memsup - --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - --record(state, {memory_fraction, alarmed, timeout, timer}). +-record(state, {alarmed, + total_memory, + allocated_memory}). %%---------------------------------------------------------------------------- -ifdef(use_specs). --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(update/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- +-type(state() :: #state { alarmed :: boolean(), + total_memory :: ('undefined' | non_neg_integer()), + allocated_memory :: ('undefined' | non_neg_integer()) + }). -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). +-spec(init/0 :: () -> state()). +-spec(update/2 :: (float(), state()) -> state()). +-spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), + ('undefined' | pid())}). - -update() -> - gen_server:cast(?SERVER, update). +-endif. %%---------------------------------------------------------------------------- -init(_Args) -> - Fraction = os_mon:get_env(memsup, system_memory_high_watermark), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - {ok, #state{alarmed = false, - memory_fraction = Fraction, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef}}. +init() -> + #state{alarmed = false, + total_memory = undefined, + allocated_memory = undefined}. -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% Export the same API as the real memsup. Note that -%% get_sysmem_high_watermark gives an int in the range 0 - 100, while -%% set_sysmem_high_watermark takes a float in the range 0.0 - 1.0. -handle_call(get_sysmem_high_watermark, _From, State) -> - {reply, trunc(100 * State#state.memory_fraction), State}; - -handle_call({set_sysmem_high_watermark, Float}, _From, State) -> - {reply, ok, State#state{memory_fraction = Float}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State = #state{alarmed = Alarmed, - memory_fraction = MemoryFraction}) -> +update(MemoryFraction, State = #state { alarmed = Alarmed }) -> File = read_proc_file("/proc/meminfo"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), @@ -116,19 +78,11 @@ handle_cast(update, State = #state{alarmed = Alarmed, _ -> ok end, - {noreply, State#state{alarmed = NewAlarmed}}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. + State#state{alarmed = NewAlarmed, + total_memory = MemTotal, allocated_memory = MemUsed}. -code_change(_OldVsn, State, _Extra) -> - {ok, State}. +get_memory_data(State) -> + {State#state.total_memory, State#state.allocated_memory, undefined}. %%---------------------------------------------------------------------------- @@ -152,5 +106,10 @@ read_proc_file(IoDevice, Acc) -> %% A line looks like "FooBar: 123456 kB" parse_line(Line) -> - [Name, Value | _] = string:tokens(Line, ": "), - {list_to_atom(Name), list_to_integer(Value)}. + [Name, RHS | _Rest] = string:tokens(Line, ":"), + [Value | UnitsRest] = string:tokens(RHS, " "), + Value1 = case UnitsRest of + [] -> list_to_integer(Value); %% no units + ["kB"] -> list_to_integer(Value) * 1024 + end, + {list_to_atom(Name), Value1}. -- cgit v1.2.1 From 23458aeebc42fdcb2db317d7ee6e86282db99f8e Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 11:10:03 +0100 Subject: Matthew made a mess --- src/priority_queue.erl | 42 ++++++++++++++++++++++++++++++++++++++++-- src/rabbit_tests.erl | 40 ++++++++++++++++++++++++++++++++++++++-- 2 files changed, 78 insertions(+), 4 deletions(-) diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 732757c4..0c777471 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -55,7 +55,8 @@ -module(priority_queue). --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, out/1]). +-export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, + out/1, join/2]). %%---------------------------------------------------------------------------- @@ -72,7 +73,8 @@ -spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). -spec(in/2 :: (any(), pqueue()) -> pqueue()). -spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). +-spec(out/1 :: (pqueue()) -> {(empty | {value, any()}), pqueue()}). +-spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). -endif. @@ -147,6 +149,42 @@ out({pqueue, [{P, Q} | Queues]}) -> end, {R, NewQ}. +join(A, {queue, [], []}) -> + A; +join({queue, [], []}, B) -> + B; +join({queue, AIn, AOut}, {queue, BIn, BOut}) -> + {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; +join(A = {queue, _, _}, {pqueue, BPQ}) -> + {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), + Post1 = case Post of + [] -> [ {0, A} ]; + [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; + _ -> [ {0, A} | Post ] + end, + {pqueue, Pre ++ Post1}; +join({pqueue, APQ}, B = {queue, _, _}) -> + {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), + Post1 = case Post of + [] -> [ {0, B} ]; + [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; + _ -> [ {0, B} | Post ] + end, + {pqueue, Pre ++ Post1}; +join({pqueue, APQ}, {pqueue, BPQ}) -> + {pqueue, merge(APQ, BPQ, [])}. + +merge([], BPQ, Acc) -> + lists:reverse(Acc, BPQ); +merge(APQ, [], Acc) -> + lists:reverse(Acc, APQ); +merge([{P, A}|As], [{P, B}|Bs], Acc) -> + merge(As, Bs, [ {P, join(A, B)} | Acc ]); +merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> + merge(As, Bs, [ {PA, A} | Acc ]); +merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> + merge(As, Bs, [ {PB, B} | Acc ]). + r2f([]) -> {queue, [], []}; r2f([_] = R) -> {queue, [], R}; r2f([X,Y]) -> {queue, [X], [Y]}; diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index e5100ccd..fbb2b756 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -75,7 +75,8 @@ test_priority_queue() -> %% 1-element priority Q Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = test_priority_queue(Q1), + {true, false, 1, [{1, foo}], [foo]} = + test_priority_queue(Q1), %% 2-element same-priority Q Q2 = priority_queue:in(bar, 1, Q1), @@ -91,6 +92,42 @@ test_priority_queue() -> Q4 = priority_queue:in(foo, -1, priority_queue:new()), {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), + %% merge 2 * 1-element no-priority Qs + Q5 = priority_queue:join(priority_queue:in(foo, Q), + priority_queue:in(bar, Q)), + {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = + test_priority_queue(Q5), + + %% merge 1-element no-priority Q with 1-element priority Q + Q6 = priority_queue:join(priority_queue:in(foo, Q), + priority_queue:in(bar, 1, Q)), + {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = + test_priority_queue(Q6), + + %% merge 1-element priority Q with 1-element no-priority Q + Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), + priority_queue:in(bar, Q)), + {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = + test_priority_queue(Q7), + + %% merge 2 * 1-element same-priority Qs + Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), + priority_queue:in(bar, 1, Q)), + {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = + test_priority_queue(Q8), + + %% merge 2 * 1-element different-priority Qs + Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), + priority_queue:in(bar, 2, Q)), + {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = + test_priority_queue(Q9), + + %% merge 2 * 1-element different-priority Qs (other way around) + Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), + priority_queue:in(foo, 1, Q)), + {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = + test_priority_queue(Q10), + passed. priority_queue_in_all(Q, L) -> @@ -101,7 +138,6 @@ priority_queue_out_all(Q) -> {empty, _} -> []; {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] end. - test_priority_queue(Q) -> {priority_queue:is_queue(Q), priority_queue:is_empty(Q), -- cgit v1.2.1 From c711fa85855f2d66d2ddd0aa46514de2f22730e2 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 11:10:14 +0100 Subject: Matthew made a mess --- src/rabbit_amqqueue.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 4903c2c5..01b1f088 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -303,10 +303,10 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> infinity). notify_sent(QPid, ChPid) -> - gen_server2:cast(QPid, {notify_sent, ChPid}). + gen_server2:pcast(QPid, 10, {notify_sent, ChPid}). unblock(QPid, ChPid) -> - gen_server2:cast(QPid, {unblock, ChPid}). + gen_server2:pcast(QPid, 10, {unblock, ChPid}). internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( -- cgit v1.2.1 From 8892b22a4245b004715ee27a8bda7dc026a16289 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 11:10:23 +0100 Subject: Matthew made a mess --- src/rabbit_guid.erl | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl index 2be00503..3aa2989a 100644 --- a/src/rabbit_guid.erl +++ b/src/rabbit_guid.erl @@ -42,6 +42,7 @@ terminate/2, code_change/3]). -define(SERVER, ?MODULE). +-define(SERIAL_FILENAME, "rabbit_guid"). -record(state, {serial}). @@ -59,17 +60,24 @@ %%---------------------------------------------------------------------------- start_link() -> - %% The persister can get heavily loaded, and we don't want that to - %% impact guid generation. We therefore keep the serial in a - %% separate process rather than calling rabbit_persister:serial/0 - %% directly in the functions below. gen_server:start_link({local, ?SERVER}, ?MODULE, - [rabbit_persister:serial()], []). + [update_disk_serial()], []). + +update_disk_serial() -> + Filename = filename:join(mnesia:system_info(directory), ?SERIAL_FILENAME), + Serial = case file:read_file(Filename) of + {ok, Content} -> + binary_to_term(Content); + {error, _} -> + 0 + end, + ok = file:write_file(Filename, term_to_binary(Serial + 1)), + Serial. %% generate a guid that is monotonically increasing per process. %% %% The id is only unique within a single cluster and as long as the -%% persistent message store hasn't been deleted. +%% serial store hasn't been deleted. guid() -> %% We don't use erlang:now() here because a) it may return %% duplicates when the system clock has been rewound prior to a @@ -77,7 +85,7 @@ guid() -> %% now() to move ahead of the system time), and b) it is really %% slow since it takes a global lock and makes a system call. %% - %% rabbit_persister:serial/0, in combination with self/0 (which + %% A persisted serial number, in combination with self/0 (which %% includes the node name) uniquely identifies a process in space %% and time. We combine that with a process-local counter to give %% us a GUID that is monotonically increasing per process. -- cgit v1.2.1 From 8bf2c690ce5d25c5d7e6387d0069c79081113fdc Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 11:10:40 +0100 Subject: Matthew made a mess --- src/rabbit_misc.erl | 40 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 38 insertions(+), 2 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index abf4c7cc..c328c111 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -53,6 +53,7 @@ -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). +-export([unfold/2, ceil/1, keygets/2]). -import(mnesia). -import(lists). @@ -116,7 +117,11 @@ -spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). -spec(start_applications/1 :: ([atom()]) -> 'ok'). -spec(stop_applications/1 :: ([atom()]) -> 'ok'). - +-spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). +-spec(ceil/1 :: (number()) -> number()). +-spec(keygets/2 :: ([({K, V} | {K, non_neg_integer(), V})], [any()]) -> + [({K, V} | any())]). + -endif. %%---------------------------------------------------------------------------- @@ -360,7 +365,8 @@ dirty_foreach_key1(F, TableName, K) -> end. dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, {file, FileName}]), + {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, + {file, FileName}]), dirty_dump_log1(LH, disk_log:chunk(LH, start)), disk_log:close(LH). @@ -444,3 +450,33 @@ stop_applications(Apps) -> cannot_stop_application, Apps). +unfold(Fun, Init) -> + unfold(Fun, [], Init). + +unfold(Fun, Acc, Init) -> + case Fun(Init) of + {true, E, I} -> unfold(Fun, [E|Acc], I); + false -> {Acc, Init} + end. + +ceil(N) -> + T = trunc(N), + case N - T of + 0 -> N; + _ -> 1 + T + end. + +keygets(Keys, KeyList) -> + lists:reverse( + lists:foldl( + fun({Key, Pos, Default}, Acc) -> + case lists:keysearch(Key, Pos, KeyList) of + false -> [{Key, Default} | Acc]; + {value, T} -> [T | Acc] + end; + ({Key, Default}, Acc) -> + case lists:keysearch(Key, 1, KeyList) of + false -> [{Key, Default} | Acc]; + {value, T} -> [T | Acc] + end + end, [], Keys)). -- cgit v1.2.1 From 25906b5dcbb700fe26c097651be29eede97bf0d3 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 11:10:54 +0100 Subject: Matthew made a mess --- src/rabbit_mnesia.erl | 84 +++++++++++++++++++++++++++++++++------------------ 1 file changed, 55 insertions(+), 29 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 575ecb0a..26c8fbe2 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -146,9 +146,22 @@ table_definitions() -> [{record_name, amqqueue}, {attributes, record_info(fields, amqqueue)}]}]. +replicated_table_definitions() -> + [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), + not lists:member({local_content, true}, Attrs) + ]. + +non_replicated_table_definitions() -> + [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), + lists:member({local_content, true}, Attrs) + ]. + table_names() -> [Tab || {Tab, _} <- table_definitions()]. +replicated_table_names() -> + [Tab || {Tab, _} <- replicated_table_definitions()]. + dir() -> mnesia:system_info(directory). ensure_mnesia_dir() -> @@ -173,7 +186,8 @@ ensure_mnesia_not_running() -> check_schema_integrity() -> %%TODO: more thorough checks - case catch [mnesia:table_info(Tab, version) || Tab <- table_names()] of + case catch [mnesia:table_info(Tab, version) + || Tab <- table_names()] of {'EXIT', Reason} -> {error, Reason}; _ -> ok end. @@ -253,9 +267,11 @@ init_db(ClusterNodes) -> WasDiskNode = mnesia:system_info(use_dir), IsDiskNode = ClusterNodes == [] orelse lists:member(node(), ClusterNodes), - case mnesia:change_config(extra_db_nodes, ClusterNodes -- [node()]) of + ExtraNodes = ClusterNodes -- [node()], + case mnesia:change_config(extra_db_nodes, ExtraNodes) of {ok, []} -> - if WasDiskNode and IsDiskNode -> + case WasDiskNode of + true -> case check_schema_integrity() of ok -> ok; @@ -270,22 +286,18 @@ init_db(ClusterNodes) -> ok = move_db(), ok = create_schema() end; - WasDiskNode -> - throw({error, {cannot_convert_disk_node_to_ram_node, - ClusterNodes}}); - IsDiskNode -> - ok = create_schema(); - true -> - throw({error, {unable_to_contact_cluster_nodes, - ClusterNodes}}) + false -> + ok = create_schema() end; {ok, [_|_]} -> - ok = wait_for_tables(), - ok = create_local_table_copies( - case IsDiskNode of - true -> disc; - false -> ram - end); + TableCopyType = case IsDiskNode of + true -> disc; + false -> ram + end, + ok = wait_for_replicated_tables(), + ok = create_local_table_copy(schema, disc_copies), + ok = create_local_non_replicated_table_copies(disc), + ok = create_local_replicated_table_copies(TableCopyType); {error, Reason} -> %% one reason we may end up here is if we try to join %% nodes together that are currently running standalone or @@ -336,16 +348,27 @@ create_tables() -> table_definitions()), ok. -create_local_table_copies(Type) -> - ok = if Type /= ram -> create_local_table_copy(schema, disc_copies); - true -> ok - end, +create_local_replicated_table_copies(Type) -> + create_local_table_copies(Type, replicated_table_definitions()). + +create_local_non_replicated_table_copies(Type) -> + create_local_table_copies(Type, non_replicated_table_definitions()). + +create_local_table_copies(Type, TableDefinitions) -> lists:foreach( fun({Tab, TabDef}) -> HasDiscCopies = - lists:keymember(disc_copies, 1, TabDef), + case lists:keysearch(disc_copies, 1, TabDef) of + false -> false; + {value, {disc_copies, List1}} -> + lists:member(node(), List1) + end, HasDiscOnlyCopies = - lists:keymember(disc_only_copies, 1, TabDef), + case lists:keysearch(disc_only_copies, 1, TabDef) of + false -> false; + {value, {disc_only_copies, List2}} -> + lists:member(node(), List2) + end, StorageType = case Type of disc -> @@ -366,10 +389,7 @@ create_local_table_copies(Type) -> end, ok = create_local_table_copy(Tab, StorageType) end, - table_definitions()), - ok = if Type == ram -> create_local_table_copy(schema, ram_copies); - true -> ok - end, + TableDefinitions), ok. create_local_table_copy(Tab, Type) -> @@ -384,10 +404,16 @@ create_local_table_copy(Tab, Type) -> end, ok. -wait_for_tables() -> +wait_for_replicated_tables() -> + wait_for_tables(replicated_table_names()). + +wait_for_tables() -> + wait_for_tables(table_names()). + +wait_for_tables(TableNames) -> case check_schema_integrity() of ok -> - case mnesia:wait_for_tables(table_names(), 30000) of + case mnesia:wait_for_tables(TableNames, 30000) of ok -> ok; {timeout, BadTabs} -> throw({error, {timeout_waiting_for_tables, BadTabs}}); -- cgit v1.2.1 From 4a589d26af97eeeaf68e82a8b0c0580911802c6c Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 11:11:48 +0100 Subject: Matthew made a mess --- Makefile | 7 +- include/rabbit.hrl | 8 +- scripts/rabbitmq-server | 3 +- scripts/rabbitmq-server.bat | 3 +- scripts/rabbitmq-service.bat | 3 +- src/rabbit.erl | 16 +- src/rabbit_amqqueue.erl | 84 +- src/rabbit_amqqueue_process.erl | 568 ++++++----- src/rabbit_basic.erl | 17 +- src/rabbit_channel.erl | 7 +- src/rabbit_control.erl | 22 +- src/rabbit_disk_queue.erl | 1973 +++++++++++++++++++++++++++++++++++++ src/rabbit_mixed_queue.erl | 596 +++++++++++ src/rabbit_mnesia.erl | 9 +- src/rabbit_persister.erl | 523 ---------- src/rabbit_queue_mode_manager.erl | 496 ++++++++++ src/rabbit_queue_prefetcher.erl | 258 +++++ src/rabbit_tests.erl | 542 +++++++++- 18 files changed, 4279 insertions(+), 856 deletions(-) create mode 100644 src/rabbit_disk_queue.erl create mode 100644 src/rabbit_mixed_queue.erl delete mode 100644 src/rabbit_persister.erl create mode 100644 src/rabbit_queue_mode_manager.erl create mode 100644 src/rabbit_queue_prefetcher.erl diff --git a/Makefile b/Makefile index c3b0c598..05464ca1 100644 --- a/Makefile +++ b/Makefile @@ -20,10 +20,10 @@ PYTHON=python ifndef USE_SPECS # our type specs rely on features / bug fixes in dialyzer that are -# only available in R12B-3 upwards +# only available in R13B upwards (R13B is eshell 5.7.1) # # NB: the test assumes that version number will only contain single digits -USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.6.2" ]; then echo "true"; else echo "false"; fi) +USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.0" ]; then echo "true"; else echo "false"; fi) endif #other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests @@ -101,7 +101,8 @@ run-tests: all start-background-node: $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ RABBITMQ_NODE_ONLY=true \ - ./scripts/rabbitmq-server -detached; sleep 1 + RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ + ./scripts/rabbitmq-server ; sleep 1 start-rabbit-on-node: all echo "rabbit:start()." | $(ERL_CALL) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 784c21b3..0ba31cb5 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -62,7 +62,10 @@ -record(listener, {node, protocol, host, port}). --record(basic_message, {exchange_name, routing_key, content, persistent_key}). +-record(basic_message, {exchange_name, routing_key, content, + guid, is_persistent}). + +-record(dq_msg_loc, {queue_and_seq_id, is_delivered, msg_id}). -record(delivery, {mandatory, immediate, txn, sender, message}). @@ -134,7 +137,8 @@ #basic_message{exchange_name :: exchange_name(), routing_key :: routing_key(), content :: content(), - persistent_key :: maybe(pkey())}). + guid :: guid(), + is_persistent :: bool()}). -type(message() :: basic_message()). -type(delivery() :: #delivery{mandatory :: bool(), diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 547220b4..f802ec4c 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -105,8 +105,9 @@ exec erl \ -os_mon start_memsup false \ -os_mon start_os_sup false \ -os_mon memsup_system_only true \ - -os_mon system_memory_high_watermark 0.95 \ + -os_mon system_memory_high_watermark 0.8 \ -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ + -mnesia dump_log_write_threshold 10000 \ ${RABBITMQ_CLUSTER_CONFIG_OPTION} \ ${RABBITMQ_SERVER_START_ARGS} \ "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index b4868841..3b6e4938 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -134,8 +134,9 @@ if exist "%RABBITMQ_EBIN_ROOT%\rabbit.boot" ( -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.95 ^ +-os_mon system_memory_high_watermark 0.8 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ +-mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat index 29be1742..82aa4d5c 100755 --- a/scripts/rabbitmq-service.bat +++ b/scripts/rabbitmq-service.bat @@ -175,8 +175,9 @@ set ERLANG_SERVICE_ARGUMENTS= ^ -os_mon start_memsup false ^ -os_mon start_os_sup false ^ -os_mon memsup_system_only true ^ --os_mon system_memory_high_watermark 0.95 ^ +-os_mon system_memory_high_watermark 0.8 ^ -mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ +-mnesia dump_log_write_threshold 10000 ^ %CLUSTER_CONFIG% ^ %RABBITMQ_SERVER_START_ARGS% ^ %* diff --git a/src/rabbit.erl b/src/rabbit.erl index b0d62b5a..88c60eb9 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -139,6 +139,8 @@ start(normal, []) -> {ok, MemoryAlarms} = application:get_env(memory_alarms), ok = rabbit_alarm:start(MemoryAlarms), + + ok = start_child(rabbit_queue_mode_manager), ok = rabbit_binary_generator: check_empty_content_body_frame_size(), @@ -146,15 +148,19 @@ start(normal, []) -> ok = start_child(rabbit_router), ok = start_child(rabbit_node_monitor) end}, + {"disk queue", + fun () -> + ok = start_child(rabbit_disk_queue) + end}, {"recovery", fun () -> ok = maybe_insert_default_data(), ok = rabbit_exchange:recover(), - ok = rabbit_amqqueue:recover() - end}, - {"persister", - fun () -> - ok = start_child(rabbit_persister) + {ok, DurableQueues} = rabbit_amqqueue:recover(), + DurableQueueNames = + sets:from_list([ Q #amqqueue.name || Q <- DurableQueues ]), + ok = rabbit_disk_queue:delete_non_durable_queues( + DurableQueueNames) end}, {"guid generator", fun () -> diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 01b1f088..62ea465d 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,6 +42,7 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). +-export([set_mode_pin/3, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -62,7 +63,7 @@ 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). -spec(start/0 :: () -> 'ok'). --spec(recover/0 :: () -> 'ok'). +-spec(recover/0 :: () -> {'ok', [amqqueue()]}). -spec(declare/4 :: (queue_name(), bool(), bool(), amqp_table()) -> amqqueue()). -spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). @@ -101,10 +102,13 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). +-spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). +-spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). +-spec(report_memory/1 :: (pid()) -> 'ok'). -endif. @@ -119,37 +123,42 @@ start() -> ok. recover() -> - ok = recover_durable_queues(), - ok. + {ok, DurableQueues} = recover_durable_queues(), + {ok, DurableQueues}. recover_durable_queues() -> Node = node(), - lists:foreach( - fun (RecoveredQ) -> - Q = start_queue_process(RecoveredQ), - %% We need to catch the case where a client connected to - %% another node has deleted the queue (and possibly - %% re-created it). - case rabbit_misc:execute_mnesia_transaction( - fun () -> case mnesia:match_object( - rabbit_durable_queue, RecoveredQ, read) of - [_] -> ok = store_queue(Q), - true; - [] -> false - end - end) of - true -> ok; - false -> exit(Q#amqqueue.pid, shutdown) - end - end, - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end)), - ok. + DurableQueues = + lists:foldl( + fun (RecoveredQ, Acc) -> + Q = start_queue_process(RecoveredQ), + %% We need to catch the case where a client connected to + %% another node has deleted the queue (and possibly + %% re-created it). + case rabbit_misc:execute_mnesia_transaction( + fun () -> + Match = + mnesia:match_object( + rabbit_durable_queue, RecoveredQ, read), + case Match of + [_] -> ok = store_queue(Q), + true; + [] -> false + end + end) of + true -> [Q|Acc]; + false -> exit(Q#amqqueue.pid, shutdown), + Acc + end + end, [], + %% TODO: use dirty ops instead + rabbit_misc:execute_mnesia_transaction( + fun () -> + qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} + <- mnesia:table(rabbit_durable_queue), + node(Pid) == Node])) + end)), + {ok, DurableQueues}. declare(QueueName, Durable, AutoDelete, Args) -> Q = start_queue_process(#amqqueue{name = QueueName, @@ -216,6 +225,23 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). +set_mode_pin(VHostPath, Queue, Disk) + when is_binary(VHostPath) andalso is_binary(Queue) -> + with(rabbit_misc:r(VHostPath, queue, Queue), + fun(Q) -> case Disk of + true -> rabbit_queue_mode_manager:pin_to_disk + (Q #amqqueue.pid); + false -> rabbit_queue_mode_manager:unpin_from_disk + (Q #amqqueue.pid) + end + end). + +set_mode(QPid, Mode) -> + gen_server2:pcast(QPid, 10, {set_mode, Mode}). + +report_memory(QPid) -> + gen_server2:cast(QPid, report_memory). + info(#amqqueue{ pid = QPid }) -> gen_server2:pcall(QPid, 9, info, infinity). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index fe2e8509..14a0370d 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -38,10 +38,12 @@ -define(UNSENT_MESSAGE_LIMIT, 100). -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). +-define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds -export([start_link/1]). --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]). +-export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, + handle_info/2, handle_pre_hibernate/1]). -import(queue). -import(erlang). @@ -52,10 +54,12 @@ owner, exclusive_consumer, has_had_consumers, + mixed_state, next_msg_id, - message_buffer, active_consumers, - blocked_consumers}). + blocked_consumers, + memory_report_timer + }). -record(consumer, {tag, ack_required}). @@ -84,7 +88,9 @@ acks_uncommitted, consumers, transactions, - memory]). + memory, + mode + ]). %%---------------------------------------------------------------------------- @@ -93,24 +99,35 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q) -> +init(Q = #amqqueue { name = QName, durable = Durable }) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), - {ok, #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - next_msg_id = 1, - message_buffer = queue:new(), - active_consumers = queue:new(), - blocked_consumers = queue:new()}, hibernate, + ok = rabbit_queue_mode_manager:register + (self(), false, rabbit_amqqueue, set_mode, [self()]), + {ok, MS} = rabbit_mixed_queue:init(QName, Durable), + State = #q{q = Q, + owner = none, + exclusive_consumer = none, + has_had_consumers = false, + mixed_state = MS, + next_msg_id = 1, + active_consumers = queue:new(), + blocked_consumers = queue:new(), + memory_report_timer = undefined + }, + %% first thing we must do is report_memory which will clear out + %% the 'undefined' values in gain and loss in mixed_queue state + {ok, start_memory_timer(State), hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. terminate(_Reason, State) -> %% FIXME: How do we cancel active subscriptions? QName = qname(State), - lists:foreach(fun (Txn) -> ok = rollback_work(Txn, QName) end, - all_tx()), - ok = purge_message_buffer(QName, State#q.message_buffer), + NewState = + lists:foldl(fun (Txn, State1) -> + rollback_transaction(Txn, State1) + end, State, all_tx()), + rabbit_mixed_queue:delete_queue(NewState #q.mixed_state), + stop_memory_timer(NewState), ok = rabbit_amqqueue:internal_delete(QName). code_change(_OldVsn, State, _Extra) -> @@ -118,9 +135,24 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- -reply(Reply, NewState) -> {reply, Reply, NewState, hibernate}. +reply(Reply, NewState) -> + {reply, Reply, start_memory_timer(NewState), hibernate}. -noreply(NewState) -> {noreply, NewState, hibernate}. +noreply(NewState) -> + {noreply, start_memory_timer(NewState), hibernate}. + +start_memory_timer(State = #q { memory_report_timer = undefined }) -> + {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, + rabbit_amqqueue, report_memory, [self()]), + report_memory(false, State #q { memory_report_timer = TRef }); +start_memory_timer(State) -> + State. + +stop_memory_timer(State = #q { memory_report_timer = undefined }) -> + State; +stop_memory_timer(State = #q { memory_report_timer = TRef }) -> + {ok, cancel} = timer:cancel(TRef), + State #q { memory_report_timer = undefined }. lookup_ch(ChPid) -> case get({ch, ChPid}) of @@ -167,12 +199,11 @@ record_current_channel_tx(ChPid, Txn) -> %% that wasn't happening already) store_ch_record((ch_record(ChPid))#cr{txn = Txn}). -deliver_immediately(Message, Delivered, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers, - next_msg_id = NextId}) -> - ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), +deliver_queue(Funs = {PredFun, DeliverFun}, FunAcc, + State = #q{q = #amqqueue{name = QName}, + active_consumers = ActiveConsumers, + blocked_consumers = BlockedConsumers, + next_msg_id = NextId}) -> case queue:out(ActiveConsumers) of {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, ack_required = AckRequired}}}, @@ -180,15 +211,21 @@ deliver_immediately(Message, Delivered, C = #cr{limiter_pid = LimiterPid, unsent_message_count = Count, unacked_messages = UAM} = ch_record(ChPid), - case rabbit_limiter:can_send(LimiterPid, self(), AckRequired) of + IsMsgReady = PredFun(FunAcc, State), + case (IsMsgReady andalso + rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of true -> + {{Msg, IsDelivered, AckTag}, FunAcc1, State1} = + DeliverFun(AckRequired, FunAcc, State), + ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Msg]), rabbit_channel:deliver( ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, Delivered, Message}), - NewUAM = case AckRequired of - true -> dict:store(NextId, Message, UAM); - false -> UAM - end, + {QName, self(), NextId, IsDelivered, Msg}), + NewUAM = + case AckRequired of + true -> dict:store(NextId, {Msg, AckTag}, UAM); + false -> UAM + end, NewC = C#cr{unsent_message_count = Count + 1, unacked_messages = NewUAM}, store_ch_record(NewC), @@ -204,54 +241,113 @@ deliver_immediately(Message, Delivered, {ActiveConsumers1, queue:in(QEntry, BlockedConsumers1)} end, - {offered, AckRequired, - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers, - next_msg_id = NextId + 1}}; - false -> + State2 = State1 #q { + active_consumers = NewActiveConsumers, + blocked_consumers = NewBlockedConsumers, + next_msg_id = NextId + 1 + }, + deliver_queue(Funs, FunAcc1, State2); + %% if IsMsgReady then we've hit the limiter + false when IsMsgReady -> store_ch_record(C#cr{is_limit_active = true}), {NewActiveConsumers, NewBlockedConsumers} = move_consumers(ChPid, ActiveConsumers, BlockedConsumers), - deliver_immediately( - Message, Delivered, + deliver_queue( + Funs, FunAcc, State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}) + blocked_consumers = NewBlockedConsumers}); + false -> + %% no message was ready, so we don't need to block anyone + {FunAcc, State} end; {empty, _} -> - {not_offered, State} + {FunAcc, State} end. -attempt_delivery(none, _ChPid, Message, State) -> - case deliver_immediately(Message, false, State) of - {offered, false, State1} -> - {true, State1}; - {offered, true, State1} -> - persist_message(none, qname(State), Message), - persist_delivery(qname(State), Message, false), - {true, State1}; - {not_offered, State1} -> - {false, State1} - end; -attempt_delivery(Txn, ChPid, Message, State) -> - persist_message(Txn, qname(State), Message), - record_pending_message(Txn, ChPid, Message), - {true, State}. - -deliver_or_enqueue(Txn, ChPid, Message, State) -> - case attempt_delivery(Txn, ChPid, Message, State) of +deliver_from_queue_pred({IsEmpty, _AutoAcks}, _State) -> + not IsEmpty. +deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, + State = #q { mixed_state = MS }) -> + {{Msg, IsDelivered, AckTag, Remaining}, MS1} = + rabbit_mixed_queue:deliver(MS), + AutoAcks1 = + case AckRequired of + true -> AutoAcks; + false -> [{Msg, AckTag} | AutoAcks] + end, + {{Msg, IsDelivered, AckTag}, {0 == Remaining, AutoAcks1}, + State #q { mixed_state = MS1 }}. + +run_message_queue(State = #q { mixed_state = MS }) -> + Funs = { fun deliver_from_queue_pred/2, + fun deliver_from_queue_deliver/3 }, + IsEmpty = rabbit_mixed_queue:is_empty(MS), + {{_IsEmpty1, AutoAcks}, State1} = + deliver_queue(Funs, {IsEmpty, []}, State), + {ok, MS1} = + rabbit_mixed_queue:ack(AutoAcks, State1 #q.mixed_state), + State1 #q { mixed_state = MS1 }. + +attempt_immediate_delivery(none, _ChPid, Msg, State) -> + PredFun = fun (IsEmpty, _State) -> not IsEmpty end, + DeliverFun = + fun (AckRequired, false, State1) -> + {AckTag, State2} = + case AckRequired of + true -> + {ok, AckTag1, MS} = + rabbit_mixed_queue:publish_delivered( + Msg, State1 #q.mixed_state), + {AckTag1, State1 #q { mixed_state = MS }}; + false -> + {noack, State1} + end, + {{Msg, false, AckTag}, true, State2} + end, + deliver_queue({ PredFun, DeliverFun }, false, State); +attempt_immediate_delivery(Txn, ChPid, Msg, State) -> + {ok, MS} = rabbit_mixed_queue:tx_publish(Msg, State #q.mixed_state), + record_pending_message(Txn, ChPid, Msg), + {true, State #q { mixed_state = MS }}. + +deliver_or_enqueue(Txn, ChPid, Msg, State) -> + case attempt_immediate_delivery(Txn, ChPid, Msg, State) of {true, NewState} -> {true, NewState}; {false, NewState} -> - persist_message(Txn, qname(State), Message), - NewMB = queue:in({Message, false}, NewState#q.message_buffer), - {false, NewState#q{message_buffer = NewMB}} + %% Txn is none and no unblocked channels with consumers + {ok, MS} = rabbit_mixed_queue:publish(Msg, State #q.mixed_state), + {false, NewState #q { mixed_state = MS }} + end. + +%% all these messages have already been delivered at least once and +%% not ack'd, but need to be either redelivered or requeued +deliver_or_requeue_n([], State) -> + run_message_queue(State); +deliver_or_requeue_n(MsgsWithAcks, State) -> + Funs = { fun deliver_or_requeue_msgs_pred/2, + fun deliver_or_requeue_msgs_deliver/3 }, + {{_RemainingLengthMinusOne, AutoAcks, OutstandingMsgs}, NewState} = + deliver_queue(Funs, {length(MsgsWithAcks) - 1, [], MsgsWithAcks}, + State), + {ok, MS} = rabbit_mixed_queue:ack(AutoAcks, + NewState #q.mixed_state), + case OutstandingMsgs of + [] -> run_message_queue(NewState #q { mixed_state = MS }); + _ -> {ok, MS1} = rabbit_mixed_queue:requeue(OutstandingMsgs, MS), + NewState #q { mixed_state = MS1 } end. -deliver_or_enqueue_n(Messages, State = #q{message_buffer = MessageBuffer}) -> - run_poke_burst(queue:join(MessageBuffer, queue:from_list(Messages)), - State). +deliver_or_requeue_msgs_pred({Len, _AcksAcc, _MsgsWithAcks}, _State) -> + -1 < Len. +deliver_or_requeue_msgs_deliver( + false, {Len, AcksAcc, [(MsgAckTag = {Msg, _}) | MsgsWithAcks]}, State) -> + {{Msg, true, noack}, {Len - 1, [MsgAckTag | AcksAcc], MsgsWithAcks}, State}; +deliver_or_requeue_msgs_deliver( + true, {Len, AcksAcc, [{Msg, AckTag} | MsgsWithAcks]}, State) -> + {{Msg, true, AckTag}, {Len - 1, AcksAcc, MsgsWithAcks}, State}. add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). @@ -285,7 +381,7 @@ possibly_unblock(State, ChPid, Update) -> move_consumers(ChPid, State#q.blocked_consumers, State#q.active_consumers), - run_poke_burst( + run_message_queue( State#q{active_consumers = NewActiveConsumers, blocked_consumers = NewBlockedeConsumers}) end @@ -302,27 +398,27 @@ handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> unacked_messages = UAM} -> erlang:demonitor(MonitorRef), erase({ch, ChPid}), - case Txn of - none -> ok; - _ -> ok = rollback_work(Txn, qname(State)), - erase_tx(Txn) - end, - NewState = - deliver_or_enqueue_n( - [{Message, true} || - {_Messsage_id, Message} <- dict:to_list(UAM)], - State#q{ + State1 = + case Txn of + none -> State; + _ -> rollback_transaction(Txn, State) + end, + State2 = + deliver_or_requeue_n( + [MsgWithAck || + {_MsgId, MsgWithAck} <- dict:to_list(UAM)], + State1 #q { exclusive_consumer = case Holder of {ChPid, _} -> none; Other -> Other end, active_consumers = remove_consumers( - ChPid, State#q.active_consumers), + ChPid, State1#q.active_consumers), blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}), - case should_auto_delete(NewState) of - false -> noreply(NewState); - true -> {stop, normal, NewState} + ChPid, State1#q.blocked_consumers)}), + case should_auto_delete(State2) of + false -> noreply(State2); + true -> {stop, normal, State2} end end. @@ -345,26 +441,6 @@ check_exclusive_access(none, true, State) -> false -> in_use end. -run_poke_burst(State = #q{message_buffer = MessageBuffer}) -> - run_poke_burst(MessageBuffer, State). - -run_poke_burst(MessageBuffer, State) -> - case queue:out(MessageBuffer) of - {{value, {Message, Delivered}}, BufferTail} -> - case deliver_immediately(Message, Delivered, State) of - {offered, true, NewState} -> - persist_delivery(qname(State), Message, Delivered), - run_poke_burst(BufferTail, NewState); - {offered, false, NewState} -> - persist_auto_ack(qname(State), Message), - run_poke_burst(BufferTail, NewState); - {not_offered, NewState} -> - NewState#q{message_buffer = MessageBuffer} - end; - {empty, _} -> - State#q{message_buffer = MessageBuffer} - end. - is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso queue:is_empty(State#q.blocked_consumers). @@ -373,62 +449,6 @@ maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). qname(#q{q = #amqqueue{name = QName}}) -> QName. -persist_message(_Txn, _QName, #basic_message{persistent_key = none}) -> - ok; -persist_message(Txn, QName, Message) -> - M = Message#basic_message{ - %% don't persist any recoverable decoded properties, rebuild from properties_bin on restore - content = rabbit_binary_parser:clear_decoded_content( - Message#basic_message.content)}, - persist_work(Txn, QName, - [{publish, M, {QName, M#basic_message.persistent_key}}]). - -persist_delivery(_QName, _Message, - true) -> - ok; -persist_delivery(_QName, #basic_message{persistent_key = none}, - _Delivered) -> - ok; -persist_delivery(QName, #basic_message{persistent_key = PKey}, - _Delivered) -> - persist_work(none, QName, [{deliver, {QName, PKey}}]). - -persist_acks(Txn, QName, Messages) -> - persist_work(Txn, QName, - [{ack, {QName, PKey}} || - #basic_message{persistent_key = PKey} <- Messages, - PKey =/= none]). - -persist_auto_ack(_QName, #basic_message{persistent_key = none}) -> - ok; -persist_auto_ack(QName, #basic_message{persistent_key = PKey}) -> - %% auto-acks are always non-transactional - rabbit_persister:dirty_work([{ack, {QName, PKey}}]). - -persist_work(_Txn,_QName, []) -> - ok; -persist_work(none, _QName, WorkList) -> - rabbit_persister:dirty_work(WorkList); -persist_work(Txn, QName, WorkList) -> - mark_tx_persistent(Txn), - rabbit_persister:extend_transaction({Txn, QName}, WorkList). - -commit_work(Txn, QName) -> - do_if_persistent(fun rabbit_persister:commit_transaction/1, - Txn, QName). - -rollback_work(Txn, QName) -> - do_if_persistent(fun rabbit_persister:rollback_transaction/1, - Txn, QName). - -%% optimisation: don't do unnecessary work -%% it would be nice if this was handled by the persister -do_if_persistent(F, Txn, QName) -> - case is_tx_persistent(Txn) of - false -> ok; - true -> ok = F({Txn, QName}) - end. - lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx{ch_pid = none, @@ -450,19 +470,14 @@ all_tx_record() -> all_tx() -> [Txn || {{txn, Txn}, _} <- get()]. -mark_tx_persistent(Txn) -> - Tx = lookup_tx(Txn), - store_tx(Txn, Tx#tx{is_persistent = true}). - -is_tx_persistent(Txn) -> - #tx{is_persistent = Res} = lookup_tx(Txn), - Res. - -record_pending_message(Txn, ChPid, Message) -> - Tx = #tx{pending_messages = Pending} = lookup_tx(Txn), +record_pending_message(Txn, ChPid, Message = + #basic_message { is_persistent = IsPersistent }) -> + Tx = #tx{pending_messages = Pending, is_persistent = IsPersistentTxn } = + lookup_tx(Txn), record_current_channel_tx(ChPid, Txn), - store_tx(Txn, Tx#tx{pending_messages = [{Message, false} | Pending], - ch_pid = ChPid}). + store_tx(Txn, Tx #tx { pending_messages = [Message | Pending], + is_persistent = IsPersistentTxn orelse IsPersistent + }). record_pending_acks(Txn, ChPid, MsgIds) -> Tx = #tx{pending_acks = Pending} = lookup_tx(Txn), @@ -470,48 +485,53 @@ record_pending_acks(Txn, ChPid, MsgIds) -> store_tx(Txn, Tx#tx{pending_acks = [MsgIds | Pending], ch_pid = ChPid}). -process_pending(Txn, State) -> - #tx{ch_pid = ChPid, - pending_messages = PendingMessages, - pending_acks = PendingAcks} = lookup_tx(Txn), - case lookup_ch(ChPid) of - not_found -> ok; - C = #cr{unacked_messages = UAM} -> - {_Acked, Remaining} = - collect_messages(lists:append(PendingAcks), UAM), - store_ch_record(C#cr{unacked_messages = Remaining}) - end, - deliver_or_enqueue_n(lists:reverse(PendingMessages), State). +commit_transaction(Txn, State) -> + #tx { ch_pid = ChPid, + pending_messages = PendingMessages, + pending_acks = PendingAcks + } = lookup_tx(Txn), + PendingMessagesOrdered = lists:reverse(PendingMessages), + PendingAcksOrdered = lists:append(PendingAcks), + Acks = + case lookup_ch(ChPid) of + not_found -> []; + C = #cr { unacked_messages = UAM } -> + {MsgWithAcks, Remaining} = + collect_messages(PendingAcksOrdered, UAM), + store_ch_record(C#cr{unacked_messages = Remaining}), + MsgWithAcks + end, + {ok, MS} = rabbit_mixed_queue:tx_commit( + PendingMessagesOrdered, Acks, State #q.mixed_state), + State #q { mixed_state = MS }. + +rollback_transaction(Txn, State) -> + #tx { pending_messages = PendingMessages + } = lookup_tx(Txn), + {ok, MS} = rabbit_mixed_queue:tx_cancel(PendingMessages, + State #q.mixed_state), + erase_tx(Txn), + State #q { mixed_state = MS }. +%% {A, B} = collect_messages(C, D) %% A = C `intersect` D; B = D \\ C +%% err, A = C `intersect` D , via projection through the dict that is C collect_messages(MsgIds, UAM) -> lists:mapfoldl( fun (MsgId, D) -> {dict:fetch(MsgId, D), dict:erase(MsgId, D)} end, UAM, MsgIds). -purge_message_buffer(QName, MessageBuffer) -> - Messages = - [[Message || {Message, _Delivered} <- - queue:to_list(MessageBuffer)] | - lists:map( - fun (#cr{unacked_messages = UAM}) -> - [Message || {_MessageId, Message} <- dict:to_list(UAM)] - end, - all_ch_record())], - %% the simplest, though certainly not the most obvious or - %% efficient, way to purge messages from the persister is to - %% artifically ack them. - persist_acks(none, QName, lists:append(Messages)). - infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. i(name, #q{q = #amqqueue{name = Name}}) -> Name; i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; +i(mode, #q{ mixed_state = MS }) -> + rabbit_mixed_queue:info(MS); i(pid, _) -> self(); -i(messages_ready, #q{message_buffer = MessageBuffer}) -> - queue:len(MessageBuffer); +i(messages_ready, #q { mixed_state = MS }) -> + rabbit_mixed_queue:length(MS); i(messages_unacknowledged, _) -> lists:sum([dict:size(UAM) || #cr{unacked_messages = UAM} <- all_ch_record()]); @@ -535,6 +555,12 @@ i(memory, _) -> i(Item, _) -> throw({bad_argument, Item}). +report_memory(Hib, State = #q { mixed_state = MS }) -> + {MS1, MSize, Gain, Loss} = + rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), + rabbit_queue_mode_manager:report_memory(self(), MSize, Gain, Loss, Hib), + State #q { mixed_state = MS1 }. + %--------------------------------------------------------------------------- handle_call(info, _From, State) -> @@ -560,7 +586,8 @@ handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> %% just all ready-to-consume queues get the message, with unready %% queues discarding the message? %% - {Delivered, NewState} = attempt_delivery(Txn, ChPid, Message, State), + {Delivered, NewState} = + attempt_immediate_delivery(Txn, ChPid, Message, State), reply(Delivered, NewState); handle_call({deliver, Txn, Message, ChPid}, _From, State) -> @@ -569,12 +596,11 @@ handle_call({deliver, Txn, Message, ChPid}, _From, State) -> reply(Delivered, NewState); handle_call({commit, Txn}, From, State) -> - ok = commit_work(Txn, qname(State)), + NewState = commit_transaction(Txn, State), %% optimisation: we reply straight away so the sender can continue gen_server2:reply(From, ok), - NewState = process_pending(Txn, State), erase_tx(Txn), - noreply(NewState); + noreply(run_message_queue(NewState)); handle_call({notify_down, ChPid}, From, State) -> %% optimisation: we reply straight away so the sender can continue @@ -584,25 +610,27 @@ handle_call({notify_down, ChPid}, From, State) -> handle_call({basic_get, ChPid, NoAck}, _From, State = #q{q = #amqqueue{name = QName}, next_msg_id = NextId, - message_buffer = MessageBuffer}) -> - case queue:out(MessageBuffer) of - {{value, {Message, Delivered}}, BufferTail} -> + mixed_state = MS + }) -> + case rabbit_mixed_queue:deliver(MS) of + {empty, MS1} -> reply(empty, State #q { mixed_state = MS1 }); + {{Msg, IsDelivered, AckTag, Remaining}, MS1} -> AckRequired = not(NoAck), - case AckRequired of - true -> - persist_delivery(QName, Message, Delivered), - C = #cr{unacked_messages = UAM} = ch_record(ChPid), - NewUAM = dict:store(NextId, Message, UAM), - store_ch_record(C#cr{unacked_messages = NewUAM}); - false -> - persist_auto_ack(QName, Message) - end, - Msg = {QName, self(), NextId, Delivered, Message}, - reply({ok, queue:len(BufferTail), Msg}, - State#q{message_buffer = BufferTail, - next_msg_id = NextId + 1}); - {empty, _} -> - reply(empty, State) + {ok, MS3} = + case AckRequired of + true -> + C = #cr{unacked_messages = UAM} = ch_record(ChPid), + NewUAM = dict:store(NextId, {Msg, AckTag}, UAM), + store_ch_record(C#cr{unacked_messages = NewUAM}), + {ok, MS1}; + false -> + rabbit_mixed_queue:ack([{Msg, AckTag}], MS1) + end, + Message = {QName, self(), NextId, IsDelivered, Msg}, + reply({ok, Remaining, Message}, + State #q { next_msg_id = NextId + 1, + mixed_state = MS3 + }) end; handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, @@ -623,15 +651,14 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, ack_required = not(NoAck)}, store_ch_record(C#cr{consumer_count = ConsumerCount +1, limiter_pid = LimiterPid}), - if ConsumerCount == 0 -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok + case ConsumerCount of + 0 -> ok = rabbit_limiter:register(LimiterPid, self()); + _ -> ok end, - ExclusiveConsumer = - if ExclusiveConsume -> {ChPid, ConsumerTag}; - true -> ExistingHolder - end, + ExclusiveConsumer = case ExclusiveConsume of + true -> {ChPid, ConsumerTag}; + false -> ExistingHolder + end, State1 = State#q{has_had_consumers = true, exclusive_consumer = ExclusiveConsumer}, ok = maybe_send_reply(ChPid, OkMsg), @@ -642,7 +669,7 @@ handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, add_consumer( ChPid, Consumer, State1#q.blocked_consumers)}; - false -> run_poke_burst( + false -> run_message_queue( State1#q{ active_consumers = add_consumer( @@ -661,11 +688,10 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, reply(ok, State); C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - if ConsumerCount == 1 -> - ok = rabbit_limiter:unregister(LimiterPid, self()); - true -> - ok - end, + ok = case ConsumerCount of + 1 -> rabbit_limiter:unregister(LimiterPid, self()); + _ -> ok + end, ok = maybe_send_reply(ChPid, OkMsg), NewState = State#q{exclusive_consumer = cancel_holder(ChPid, @@ -684,14 +710,15 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, end; handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, - message_buffer = MessageBuffer, + mixed_state = MS, active_consumers = ActiveConsumers}) -> - reply({ok, Name, queue:len(MessageBuffer), queue:len(ActiveConsumers)}, - State); + Length = rabbit_mixed_queue:length(MS), + reply({ok, Name, Length, queue:len(ActiveConsumers)}, State); handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q{message_buffer = MessageBuffer}) -> - IsEmpty = queue:is_empty(MessageBuffer), + State = #q { mixed_state = MS }) -> + Length = rabbit_mixed_queue:length(MS), + IsEmpty = Length == 0, IsUnused = is_unused(State), if IfEmpty and not(IsEmpty) -> @@ -699,16 +726,16 @@ handle_call({delete, IfUnused, IfEmpty}, _From, IfUnused and not(IsUnused) -> reply({error, in_use}, State); true -> - {stop, normal, {ok, queue:len(MessageBuffer)}, State} + {stop, normal, {ok, Length}, State} end; -handle_call(purge, _From, State = #q{message_buffer = MessageBuffer}) -> - ok = purge_message_buffer(qname(State), MessageBuffer), - reply({ok, queue:len(MessageBuffer)}, - State#q{message_buffer = queue:new()}); +handle_call(purge, _From, State) -> + {Count, MS} = rabbit_mixed_queue:purge(State #q.mixed_state), + reply({ok, Count}, + State #q { mixed_state = MS }); -handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, - exclusive_consumer = Holder}) -> +handle_call({claim_queue, ReaderPid}, _From, + State = #q{owner = Owner, exclusive_consumer = Holder}) -> case Owner of none -> case check_exclusive_access(Holder, true, State) of @@ -721,7 +748,10 @@ handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, %% pid... reply(locked, State); ok -> - reply(ok, State#q{owner = {ReaderPid, erlang:monitor(process, ReaderPid)}}) + reply(ok, State #q { owner = + {ReaderPid, + erlang:monitor(process, ReaderPid)} }) + end; {ReaderPid, _MonitorRef} -> reply(ok, State); @@ -739,24 +769,21 @@ handle_cast({ack, Txn, MsgIds, ChPid}, State) -> not_found -> noreply(State); C = #cr{unacked_messages = UAM} -> - {Acked, Remaining} = collect_messages(MsgIds, UAM), - persist_acks(Txn, qname(State), Acked), + {MsgWithAcks, Remaining} = collect_messages(MsgIds, UAM), case Txn of none -> - store_ch_record(C#cr{unacked_messages = Remaining}); + {ok, MS} = + rabbit_mixed_queue:ack(MsgWithAcks, State #q.mixed_state), + store_ch_record(C#cr{unacked_messages = Remaining}), + noreply(State #q { mixed_state = MS }); _ -> - record_pending_acks(Txn, ChPid, MsgIds) - end, - noreply(State) + record_pending_acks(Txn, ChPid, MsgIds), + noreply(State) + end end; handle_cast({rollback, Txn}, State) -> - ok = rollback_work(Txn, qname(State)), - erase_tx(Txn), - noreply(State); - -handle_cast({redeliver, Messages}, State) -> - noreply(deliver_or_enqueue_n(Messages, State)); + noreply(rollback_transaction(Txn, State)); handle_cast({requeue, MsgIds, ChPid}, State) -> case lookup_ch(ChPid) of @@ -765,10 +792,9 @@ handle_cast({requeue, MsgIds, ChPid}, State) -> [ChPid]), noreply(State); C = #cr{unacked_messages = UAM} -> - {Messages, NewUAM} = collect_messages(MsgIds, UAM), + {MsgWithAcks, NewUAM} = collect_messages(MsgIds, UAM), store_ch_record(C#cr{unacked_messages = NewUAM}), - noreply(deliver_or_enqueue_n( - [{Message, true} || Message <- Messages], State)) + noreply(deliver_or_requeue_n(MsgWithAcks, State)) end; handle_cast({unblock, ChPid}, State) -> @@ -797,7 +823,22 @@ handle_cast({limit, ChPid, LimiterPid}, State) -> end, NewLimited = Limited andalso LimiterPid =/= undefined, C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)). + end)); + +handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> + PendingMessages = + lists:flatten([Pending || #tx { pending_messages = Pending} + <- all_tx_record()]), + {ok, MS1} = (case Mode of + disk -> fun rabbit_mixed_queue:to_disk_only_mode/2; + mixed -> fun rabbit_mixed_queue:to_mixed_mode/2 + end)(PendingMessages, MS), + noreply(State #q { mixed_state = MS1 }); + +handle_cast(report_memory, State) -> + %% deliberately don't call noreply/2 as we don't want to restart the timer + %% by unsetting the timer, we force a report on the next normal message + {noreply, State #q { memory_report_timer = undefined }, hibernate}. handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> @@ -818,3 +859,10 @@ handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> handle_info(Info, State) -> ?LOGDEBUG("Info in queue: ~p~n", [Info]), {stop, {unhandled_info, Info}, State}. + +handle_pre_hibernate(State = #q { mixed_state = MS }) -> + MS1 = rabbit_mixed_queue:maybe_prefetch(MS), + State1 = + stop_memory_timer(report_memory(true, State #q { mixed_state = MS1 })), + %% don't call noreply/1 as that'll restart the memory_report_timer + {hibernate, State1}. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 4033aaaf..8adb608f 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -33,8 +33,8 @@ -include("rabbit.hrl"). -include("rabbit_framing.hrl"). --export([publish/1, message/4, properties/1, delivery/4]). --export([publish/4, publish/7]). +-export([publish/1, message/4, message/5, message/6, delivery/4]). +-export([properties/1, publish/4, publish/7]). -export([build_content/2, from_content/1]). %%---------------------------------------------------------------------------- @@ -48,6 +48,10 @@ -spec(delivery/4 :: (bool(), bool(), maybe(txn()), message()) -> delivery()). -spec(message/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> message()). +-spec(message/5 :: (exchange_name(), routing_key(), properties_input(), + binary(), guid()) -> message()). +-spec(message/6 :: (exchange_name(), routing_key(), properties_input(), + binary(), guid(), bool()) -> message()). -spec(properties/1 :: (properties_input()) -> amqp_properties()). -spec(publish/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> publish_result()). @@ -91,11 +95,18 @@ from_content(Content) -> {Props, list_to_binary(lists:reverse(FragmentsRev))}. message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin) -> + message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, rabbit_guid:guid()). + +message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId) -> + message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, false). + +message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, IsPersistent) -> Properties = properties(RawProperties), #basic_message{exchange_name = ExchangeName, routing_key = RoutingKeyBin, content = build_content(Properties, BodyBin), - persistent_key = none}. + guid = MsgId, + is_persistent = IsPersistent}. properties(P = #'P_basic'{}) -> P; diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 16b7c938..397659c1 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -317,14 +317,11 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, %% We decode the content's properties here because we're almost %% certain to want to look at delivery-mode and priority. DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), - PersistentKey = case is_message_persistent(DecodedContent) of - true -> rabbit_guid:guid(); - false -> none - end, Message = #basic_message{exchange_name = ExchangeName, routing_key = RoutingKey, content = DecodedContent, - persistent_key = PersistentKey}, + guid = rabbit_guid:guid(), + is_persistent = is_message_persistent(DecodedContent)}, {RoutingRes, DeliveredQPids} = rabbit_exchange:publish( Exchange, diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 37e4d189..99bbb742 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,6 +137,9 @@ Available commands: list_bindings [-p ] list_connections [ ...] + pin_queue_to_disk + unpin_queue_from_disk + Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -152,8 +155,8 @@ virtual host parameter for which to display results. The default value is \"/\". must be a member of the list [name, durable, auto_delete, arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, -messages, acks_uncommitted, consumers, transactions, memory]. The default is - to display name and (number of) messages. +messages, acks_uncommitted, consumers, transactions, memory, mode]. The default +is to display name and (number of) messages. must be a member of the list [name, type, durable, auto_delete, arguments]. The default is to display name and type. @@ -166,6 +169,9 @@ peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. +pin_queue_to_disk will force a queue to be in disk mode. +unpin_queue_from_disk will permit a queue that has been pinned to disk mode +to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -280,6 +286,18 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). +action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> + Inform("Pinning queue ~p in vhost ~p to disk", + [Queue, VHost]), + rpc_call(Node, rabbit_amqqueue, set_mode_pin, + [list_to_binary(VHost), list_to_binary(Queue), true]); + +action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> + Inform("Unpinning queue ~p in vhost ~p from disk", + [Queue, VHost]), + rpc_call(Node, rabbit_amqqueue, set_mode_pin, + [list_to_binary(VHost), list_to_binary(Queue), false]); + action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl new file mode 100644 index 00000000..5940f5ad --- /dev/null +++ b/src/rabbit_disk_queue.erl @@ -0,0 +1,1973 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_disk_queue). + +-behaviour(gen_server2). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). +-export([handle_pre_hibernate/1]). + +-export([publish/3, deliver/1, phantom_deliver/1, ack/2, + tx_publish/1, tx_commit/3, tx_cancel/1, + requeue/2, purge/1, delete_queue/1, + delete_non_durable_queues/1, auto_ack_next_message/1, + requeue_next_n/2, length/1, foldl/3, prefetch/1 + ]). + +-export([filesync/0, cache_info/0]). + +-export([stop/0, stop_and_obliterate/0, report_memory/0, + set_mode/1, to_disk_only_mode/0, to_ram_disk_mode/0]). + +-include("rabbit.hrl"). + +-define(WRITE_OK_SIZE_BITS, 8). +-define(WRITE_OK_TRANSIENT, 255). +-define(WRITE_OK_PERSISTENT, 254). +-define(INTEGER_SIZE_BYTES, 8). +-define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). +-define(MSG_LOC_NAME, rabbit_disk_queue_msg_location). +-define(FILE_SUMMARY_ETS_NAME, rabbit_disk_queue_file_summary). +-define(SEQUENCE_ETS_NAME, rabbit_disk_queue_sequences). +-define(CACHE_ETS_NAME, rabbit_disk_queue_cache). +-define(FILE_EXTENSION, ".rdq"). +-define(FILE_EXTENSION_TMP, ".rdt"). +-define(FILE_EXTENSION_DETS, ".dets"). +-define(FILE_PACKING_ADJUSTMENT, (1 + (2* (?INTEGER_SIZE_BYTES)))). +-define(MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds +-define(BATCH_SIZE, 10000). +-define(CACHE_MAX_SIZE, 10485760). + +-define(SERVER, ?MODULE). + +-define(MAX_READ_FILE_HANDLES, 256). +-define(FILE_SIZE_LIMIT, (256*1024*1024)). + +-define(SYNC_INTERVAL, 5). %% milliseconds +-define(HIBERNATE_AFTER_MIN, 1000). +-define(DESIRED_HIBERNATE, 10000). + +-record(dqstate, + {msg_location_dets, %% where are messages? + msg_location_ets, %% as above, but for ets version + operation_mode, %% ram_disk | disk_only + file_summary, %% what's in the files? + sequences, %% next read and write for each q + current_file_num, %% current file name as number + current_file_name, %% current file name + current_file_handle, %% current file handle + current_offset, %% current offset within current file + current_dirty, %% has the current file been written to + %% since the last fsync? + file_size_limit, %% how big can our files get? + read_file_handles, %% file handles for reading (LRU) + read_file_handles_limit, %% how many file handles can we open? + on_sync_txns, %% list of commiters to run on sync (reversed) + commit_timer_ref, %% TRef for our interval timer + last_sync_offset, %% current_offset at the last time we sync'd + message_cache, %% ets message cache + memory_report_timer, %% TRef for the memory report timer + wordsize, %% bytes in a word on this platform + mnesia_bytes_per_record, %% bytes per record in mnesia in ram_disk mode + ets_bytes_per_record %% bytes per record in msg_location_ets + }). + +%% The components: +%% +%% MsgLocation: this is a (d)ets table which contains: +%% {MsgId, RefCount, File, Offset, TotalSize, IsPersistent} +%% FileSummary: this is an ets table which contains: +%% {File, ValidTotalSize, ContiguousTop, Left, Right} +%% Sequences: this is an ets table which contains: +%% {Q, ReadSeqId, WriteSeqId} +%% rabbit_disk_queue: this is an mnesia table which contains: +%% #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, +%% is_delivered = IsDelivered, +%% msg_id = MsgId +%% } +%% + +%% The basic idea is that messages are appended to the current file up +%% until that file becomes too big (> file_size_limit). At that point, +%% the file is closed and a new file is created on the _right_ of the +%% old file which is used for new messages. Files are named +%% numerically ascending, thus the file with the lowest name is the +%% eldest file. +%% +%% We need to keep track of which messages are in which files (this is +%% the MsgLocation table); how much useful data is in each file and +%% which files are on the left and right of each other. This is the +%% purpose of the FileSummary table. +%% +%% As messages are removed from files, holes appear in these +%% files. The field ValidTotalSize contains the total amount of useful +%% data left in the file, whilst ContiguousTop contains the amount of +%% valid data right at the start of each file. These are needed for +%% garbage collection. +%% +%% On publish, we write the message to disk, record the changes to +%% FileSummary and MsgLocation, and, should this be either a plain +%% publish, or followed by a tx_commit, we record the message in the +%% mnesia table. Sequences exists to enforce ordering of messages as +%% they are published within a queue. +%% +%% On delivery, we read the next message to be read from disk +%% (according to the ReadSeqId for the given queue) and record in the +%% mnesia table that the message has been delivered. +%% +%% On ack we remove the relevant entry from MsgLocation, update +%% FileSummary and delete from the mnesia table. +%% +%% In order to avoid extra mnesia searching, we return the SeqId +%% during delivery which must be returned in ack - it is not possible +%% to ack from MsgId alone. + +%% As messages are ack'd, holes develop in the files. When we discover +%% that either a file is now empty or that it can be combined with the +%% useful data in either its left or right file, we compact the two +%% files together. This keeps disk utilisation high and aids +%% performance. +%% +%% Given the compaction between two files, the left file is considered +%% the ultimate destination for the good data in the right file. If +%% necessary, the good data in the left file which is fragmented +%% throughout the file is written out to a temporary file, then read +%% back in to form a contiguous chunk of good data at the start of the +%% left file. Thus the left file is garbage collected and +%% compacted. Then the good data from the right file is copied onto +%% the end of the left file. MsgLocation and FileSummary tables are +%% updated. +%% +%% On startup, we scan the files we discover, dealing with the +%% possibilites of a crash have occured during a compaction (this +%% consists of tidyup - the compaction is deliberately designed such +%% that data is duplicated on disk rather than risking it being lost), +%% and rebuild the dets and ets tables (MsgLocation, FileSummary, +%% Sequences) from what we find. We ensure that the messages we have +%% discovered on disk match exactly with the messages recorded in the +%% mnesia table. + +%% MsgLocation is deliberately a dets table, and the mnesia table is +%% set to be a disk_only_table in order to ensure that we are not RAM +%% constrained. However, for performance reasons, it is possible to +%% call to_ram_disk_mode/0 which will alter the mnesia table to +%% disc_copies and convert MsgLocation to an ets table. This results +%% in a massive performance improvement, at the expense of greater RAM +%% usage. The idea is that when memory gets tight, we switch to +%% disk_only mode but otherwise try to run in ram_disk mode. + +%% So, with this design, messages move to the left. Eventually, they +%% should end up in a contiguous block on the left and are then never +%% rewritten. But this isn't quite the case. If in a file there is one +%% message that is being ignored, for some reason, and messages in the +%% file to the right and in the current block are being read all the +%% time then it will repeatedly be the case that the good data from +%% both files can be combined and will be written out to a new +%% file. Whenever this happens, our shunned message will be rewritten. +%% +%% So, provided that we combine messages in the right order, +%% (i.e. left file, bottom to top, right file, bottom to top), +%% eventually our shunned message will end up at the bottom of the +%% left file. The compaction/combining algorithm is smart enough to +%% read in good data from the left file that is scattered throughout +%% (i.e. C and D in the below diagram), then truncate the file to just +%% above B (i.e. truncate to the limit of the good contiguous region +%% at the start of the file), then write C and D on top and then write +%% E, F and G from the right file on top. Thus contiguous blocks of +%% good data at the bottom of files are not rewritten (yes, this is +%% the data the size of which is tracked by the ContiguousTop +%% variable. Judicious use of a mirror is required). +%% +%% +-------+ +-------+ +-------+ +%% | X | | G | | G | +%% +-------+ +-------+ +-------+ +%% | D | | X | | F | +%% +-------+ +-------+ +-------+ +%% | X | | X | | E | +%% +-------+ +-------+ +-------+ +%% | C | | F | ===> | D | +%% +-------+ +-------+ +-------+ +%% | X | | X | | C | +%% +-------+ +-------+ +-------+ +%% | B | | X | | B | +%% +-------+ +-------+ +-------+ +%% | A | | E | | A | +%% +-------+ +-------+ +-------+ +%% left right left +%% +%% From this reasoning, we do have a bound on the number of times the +%% message is rewritten. From when it is inserted, there can be no +%% files inserted between it and the head of the queue, and the worst +%% case is that everytime it is rewritten, it moves one position lower +%% in the file (for it to stay at the same position requires that +%% there are no holes beneath it, which means truncate would be used +%% and so it would not be rewritten at all). Thus this seems to +%% suggest the limit is the number of messages ahead of it in the +%% queue, though it's likely that that's pessimistic, given the +%% requirements for compaction/combination of files. +%% +%% The other property is that we have is the bound on the lowest +%% utilisation, which should be 50% - worst case is that all files are +%% fractionally over half full and can't be combined (equivalent is +%% alternating full files and files with only one tiny message in +%% them). + +%% ---- SPECS ---- + +-ifdef(use_specs). + +-type(seq_id() :: non_neg_integer()). + +-spec(start_link/0 :: () -> + ({'ok', pid()} | 'ignore' | {'error', any()})). +-spec(publish/3 :: (queue_name(), message(), bool()) -> 'ok'). +-spec(deliver/1 :: (queue_name()) -> + ('empty' | {message(), non_neg_integer(), + bool(), {msg_id(), seq_id()}, non_neg_integer()})). +-spec(phantom_deliver/1 :: (queue_name()) -> + ( 'empty' | {msg_id(), bool(), bool(), {msg_id(), seq_id()}, + non_neg_integer()})). +-spec(prefetch/1 :: (queue_name()) -> 'ok'). +-spec(ack/2 :: (queue_name(), [{msg_id(), seq_id()}]) -> 'ok'). +-spec(auto_ack_next_message/1 :: (queue_name()) -> 'ok'). +-spec(tx_publish/1 :: (message()) -> 'ok'). +-spec(tx_commit/3 :: (queue_name(), [{msg_id(), bool()}], + [{msg_id(), seq_id()}]) -> 'ok'). +-spec(tx_cancel/1 :: ([msg_id()]) -> 'ok'). +-spec(requeue/2 :: (queue_name(), [{{msg_id(), seq_id()}, bool()}]) -> 'ok'). +-spec(requeue_next_n/2 :: (queue_name(), non_neg_integer()) -> 'ok'). +-spec(purge/1 :: (queue_name()) -> non_neg_integer()). +-spec(delete_queue/1 :: (queue_name()) -> 'ok'). +-spec(delete_non_durable_queues/1 :: (set()) -> 'ok'). +-spec(length/1 :: (queue_name()) -> non_neg_integer()). +-spec(foldl/3 :: (fun (({message(), non_neg_integer(), + bool(), {msg_id(), seq_id()}}, A) -> + A), A, queue_name()) -> A). +-spec(stop/0 :: () -> 'ok'). +-spec(stop_and_obliterate/0 :: () -> 'ok'). +-spec(to_disk_only_mode/0 :: () -> 'ok'). +-spec(to_ram_disk_mode/0 :: () -> 'ok'). +-spec(filesync/0 :: () -> 'ok'). +-spec(cache_info/0 :: () -> [{atom(), term()}]). +-spec(report_memory/0 :: () -> 'ok'). +-spec(set_mode/1 :: ('disk' | 'mixed') -> 'ok'). + +-endif. + +%% ---- PUBLIC API ---- + +start_link() -> + gen_server2:start_link({local, ?SERVER}, ?MODULE, + [?FILE_SIZE_LIMIT, ?MAX_READ_FILE_HANDLES], []). + +publish(Q, Message = #basic_message {}, IsDelivered) -> + gen_server2:cast(?SERVER, {publish, Q, Message, IsDelivered}). + +deliver(Q) -> + gen_server2:call(?SERVER, {deliver, Q}, infinity). + +phantom_deliver(Q) -> + gen_server2:call(?SERVER, {phantom_deliver, Q}, infinity). + +prefetch(Q) -> + gen_server2:pcast(?SERVER, -1, {prefetch, Q, self()}). + +ack(Q, MsgSeqIds) when is_list(MsgSeqIds) -> + gen_server2:cast(?SERVER, {ack, Q, MsgSeqIds}). + +auto_ack_next_message(Q) -> + gen_server2:cast(?SERVER, {auto_ack_next_message, Q}). + +tx_publish(Message = #basic_message {}) -> + gen_server2:cast(?SERVER, {tx_publish, Message}). + +tx_commit(Q, PubMsgIds, AckSeqIds) + when is_list(PubMsgIds) andalso is_list(AckSeqIds) -> + gen_server2:call(?SERVER, {tx_commit, Q, PubMsgIds, AckSeqIds}, infinity). + +tx_cancel(MsgIds) when is_list(MsgIds) -> + gen_server2:cast(?SERVER, {tx_cancel, MsgIds}). + +requeue(Q, MsgSeqIds) when is_list(MsgSeqIds) -> + gen_server2:cast(?SERVER, {requeue, Q, MsgSeqIds}). + +requeue_next_n(Q, N) when is_integer(N) -> + gen_server2:cast(?SERVER, {requeue_next_n, Q, N}). + +purge(Q) -> + gen_server2:call(?SERVER, {purge, Q}, infinity). + +delete_queue(Q) -> + gen_server2:cast(?SERVER, {delete_queue, Q}). + +delete_non_durable_queues(DurableQueues) -> + gen_server2:call(?SERVER, {delete_non_durable_queues, DurableQueues}, + infinity). + +length(Q) -> + gen_server2:call(?SERVER, {length, Q}, infinity). + +foldl(Fun, Init, Acc) -> + gen_server2:call(?SERVER, {foldl, Fun, Init, Acc}, infinity). + +stop() -> + gen_server2:call(?SERVER, stop, infinity). + +stop_and_obliterate() -> + gen_server2:call(?SERVER, stop_vaporise, infinity). + +to_disk_only_mode() -> + gen_server2:pcall(?SERVER, 9, to_disk_only_mode, infinity). + +to_ram_disk_mode() -> + gen_server2:pcall(?SERVER, 9, to_ram_disk_mode, infinity). + +filesync() -> + gen_server2:pcast(?SERVER, 10, filesync). + +cache_info() -> + gen_server2:call(?SERVER, cache_info, infinity). + +report_memory() -> + gen_server2:cast(?SERVER, report_memory). + +set_mode(Mode) -> + gen_server2:pcast(?SERVER, 10, {set_mode, Mode}). + +%% ---- GEN-SERVER INTERNAL API ---- + +init([FileSizeLimit, ReadFileHandlesLimit]) -> + %% If the gen_server is part of a supervision tree and is ordered + %% by its supervisor to terminate, terminate will be called with + %% Reason=shutdown if the following conditions apply: + %% * the gen_server has been set to trap exit signals, and + %% * the shutdown strategy as defined in the supervisor's + %% child specification is an integer timeout value, not + %% brutal_kill. + %% Otherwise, the gen_server will be immediately terminated. + process_flag(trap_exit, true), + ok = rabbit_queue_mode_manager:register + (self(), true, rabbit_disk_queue, set_mode, []), + Node = node(), + ok = + case mnesia:change_table_copy_type(rabbit_disk_queue, Node, + disc_copies) of + {atomic, ok} -> ok; + {aborted, {already_exists, rabbit_disk_queue, Node, + disc_copies}} -> ok; + E -> E + end, + ok = filelib:ensure_dir(form_filename("nothing")), + file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ + ?FILE_EXTENSION_DETS)), + {ok, MsgLocationDets} = + dets:open_file(?MSG_LOC_NAME, + [{file, form_filename(atom_to_list(?MSG_LOC_NAME) ++ + ?FILE_EXTENSION_DETS)}, + {min_no_slots, 1024*1024}, + %% man says this should be <= 32M. But it works... + {max_no_slots, 30*1024*1024}, + {type, set} + ]), + + %% it would be better to have this as private, but dets:from_ets/2 + %% seems to blow up if it is set private + MsgLocationEts = ets:new(?MSG_LOC_NAME, [set, protected]), + + TRef = start_memory_timer(), + + InitName = "0" ++ ?FILE_EXTENSION, + State = + #dqstate { msg_location_dets = MsgLocationDets, + msg_location_ets = MsgLocationEts, + operation_mode = ram_disk, + file_summary = ets:new(?FILE_SUMMARY_ETS_NAME, + [set, private]), + sequences = ets:new(?SEQUENCE_ETS_NAME, + [set, private]), + current_file_num = 0, + current_file_name = InitName, + current_file_handle = undefined, + current_offset = 0, + current_dirty = false, + file_size_limit = FileSizeLimit, + read_file_handles = {dict:new(), gb_trees:empty()}, + read_file_handles_limit = ReadFileHandlesLimit, + on_sync_txns = [], + commit_timer_ref = undefined, + last_sync_offset = 0, + message_cache = ets:new(?CACHE_ETS_NAME, + [set, private]), + memory_report_timer = TRef, + wordsize = erlang:system_info(wordsize), + mnesia_bytes_per_record = undefined, + ets_bytes_per_record = undefined + }, + {ok, State1 = #dqstate { current_file_name = CurrentName, + current_offset = Offset } } = + load_from_disk(State), + Path = form_filename(CurrentName), + Exists = case file:read_file_info(Path) of + {error,enoent} -> false; + {ok, _} -> true + end, + %% read is only needed so that we can seek + {ok, FileHdl} = file:open(Path, [read, write, raw, binary, delayed_write]), + case Exists of + true -> {ok, Offset} = file:position(FileHdl, {bof, Offset}); + false -> %% new file, so preallocate + ok = preallocate(FileHdl, FileSizeLimit, Offset) + end, + State2 = State1 #dqstate { current_file_handle = FileHdl }, + %% by reporting a memory use of 0, we guarantee the manager will + %% grant us to ram_disk mode. We have to start in ram_disk mode + %% because we can't find values for mnesia_bytes_per_record or + %% ets_bytes_per_record otherwise. + ok = rabbit_queue_mode_manager:report_memory(self(), 0, false), + ok = report_memory(false, State2), + {ok, State2, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, + ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. + +handle_call({deliver, Q}, _From, State) -> + {ok, Result, State1} = internal_deliver(Q, true, false, true, State), + reply(Result, State1); +handle_call({phantom_deliver, Q}, _From, State) -> + {ok, Result, State1} = internal_deliver(Q, false, false, true, State), + reply(Result, State1); +handle_call({tx_commit, Q, PubMsgIds, AckSeqIds}, From, State) -> + State1 = + internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, State), + noreply(State1); +handle_call({purge, Q}, _From, State) -> + {ok, Count, State1} = internal_purge(Q, State), + reply(Count, State1); +handle_call({length, Q}, _From, State = #dqstate { sequences = Sequences }) -> + {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), + reply(WriteSeqId - ReadSeqId, State); +handle_call({foldl, Fun, Init, Q}, _From, State) -> + {ok, Result, State1} = internal_foldl(Q, Fun, Init, State), + reply(Result, State1); +handle_call(stop, _From, State) -> + {stop, normal, ok, State}; %% gen_server now calls terminate +handle_call(stop_vaporise, _From, State) -> + State1 = #dqstate { file_summary = FileSummary, + sequences = Sequences } = + shutdown(State), %% tidy up file handles early + {atomic, ok} = mnesia:clear_table(rabbit_disk_queue), + true = ets:delete(FileSummary), + true = ets:delete(Sequences), + lists:foreach(fun file:delete/1, filelib:wildcard(form_filename("*"))), + {stop, normal, ok, + State1 #dqstate { current_file_handle = undefined, + read_file_handles = {dict:new(), gb_trees:empty()}}}; + %% gen_server now calls terminate, which then calls shutdown +handle_call(to_disk_only_mode, _From, State) -> + reply(ok, to_disk_only_mode(State)); +handle_call(to_ram_disk_mode, _From, State) -> + reply(ok, to_ram_disk_mode(State)); +handle_call({delete_non_durable_queues, DurableQueues}, _From, State) -> + {ok, State1} = internal_delete_non_durable_queues(DurableQueues, State), + reply(ok, State1); +handle_call(cache_info, _From, State = #dqstate { message_cache = Cache }) -> + reply(ets:info(Cache), State). + +handle_cast({publish, Q, Message, IsDelivered}, State) -> + {ok, _MsgSeqId, State1} = internal_publish(Q, Message, IsDelivered, State), + noreply(State1); +handle_cast({ack, Q, MsgSeqIds}, State) -> + {ok, State1} = internal_ack(Q, MsgSeqIds, State), + noreply(State1); +handle_cast({auto_ack_next_message, Q}, State) -> + {ok, State1} = internal_auto_ack(Q, State), + noreply(State1); +handle_cast({tx_publish, Message}, State) -> + {ok, State1} = internal_tx_publish(Message, State), + noreply(State1); +handle_cast({tx_cancel, MsgIds}, State) -> + {ok, State1} = internal_tx_cancel(MsgIds, State), + noreply(State1); +handle_cast({requeue, Q, MsgSeqIds}, State) -> + {ok, State1} = internal_requeue(Q, MsgSeqIds, State), + noreply(State1); +handle_cast({requeue_next_n, Q, N}, State) -> + {ok, State1} = internal_requeue_next_n(Q, N, State), + noreply(State1); +handle_cast({delete_queue, Q}, State) -> + {ok, State1} = internal_delete_queue(Q, State), + noreply(State1); +handle_cast(filesync, State) -> + noreply(sync_current_file_handle(State)); +handle_cast({set_mode, Mode}, State) -> + noreply((case Mode of + disk -> fun to_disk_only_mode/1; + mixed -> fun to_ram_disk_mode/1 + end)(State)); +handle_cast(report_memory, State) -> + %% call noreply1/2, not noreply/1/2, as we don't want to restart the + %% memory_report_timer + %% by unsetting the timer, we force a report on the next normal message + noreply1(State #dqstate { memory_report_timer = undefined }); +handle_cast({prefetch, Q, From}, State) -> + {ok, Result, State1} = internal_deliver(Q, true, true, false, State), + Cont = rabbit_misc:with_exit_handler( + fun () -> false end, + fun () -> + ok = rabbit_queue_prefetcher:publish(From, Result), + true + end), + State3 = + case Cont of + true -> + case internal_deliver(Q, false, false, true, State1) of + {ok, empty, State2} -> State2; + {ok, {_MsgId, _IsPersistent, _Delivered, _MsgSeqId, _Rem}, + State2} -> State2 + end; + false -> State1 + end, + noreply(State3). + +handle_info({'EXIT', _Pid, Reason}, State) -> + {stop, Reason, State}; +handle_info(timeout, State) -> + %% must have commit_timer set, so timeout was 0, and we're not hibernating + noreply(sync_current_file_handle(State)). + +handle_pre_hibernate(State) -> + %% don't use noreply/1 or noreply1/1 as they'll restart the memory timer + ok = report_memory(true, State), + {hibernate, stop_memory_timer(State)}. + +terminate(_Reason, State) -> + shutdown(State). + +shutdown(State = #dqstate { msg_location_dets = MsgLocationDets, + msg_location_ets = MsgLocationEts, + current_file_handle = FileHdl, + read_file_handles = {ReadHdls, _ReadHdlsAge} + }) -> + %% deliberately ignoring return codes here + State1 = stop_commit_timer(stop_memory_timer(State)), + dets:close(MsgLocationDets), + file:delete(form_filename(atom_to_list(?MSG_LOC_NAME) ++ + ?FILE_EXTENSION_DETS)), + true = ets:delete_all_objects(MsgLocationEts), + case FileHdl of + undefined -> ok; + _ -> sync_current_file_handle(State), + file:close(FileHdl) + end, + dict:fold(fun (_File, Hdl, _Acc) -> + file:close(Hdl) + end, ok, ReadHdls), + State1 #dqstate { current_file_handle = undefined, + current_dirty = false, + read_file_handles = {dict:new(), gb_trees:empty()}, + memory_report_timer = undefined + }. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +%% ---- UTILITY FUNCTIONS ---- + +stop_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> + State; +stop_memory_timer(State = #dqstate { memory_report_timer = TRef }) -> + {ok, cancel} = timer:cancel(TRef), + State #dqstate { memory_report_timer = undefined }. + +start_memory_timer() -> + {ok, TRef} = timer:apply_after(?MEMORY_REPORT_TIME_INTERVAL, + rabbit_disk_queue, report_memory, []), + TRef. + +start_memory_timer(State = #dqstate { memory_report_timer = undefined }) -> + ok = report_memory(false, State), + State #dqstate { memory_report_timer = start_memory_timer() }; +start_memory_timer(State) -> + State. + +report_memory(Hibernating, State) -> + Bytes = memory_use(State), + rabbit_queue_mode_manager:report_memory(self(), trunc(2.5 * Bytes), + Hibernating). + +memory_use(#dqstate { operation_mode = ram_disk, + file_summary = FileSummary, + sequences = Sequences, + msg_location_ets = MsgLocationEts, + message_cache = Cache, + wordsize = WordSize + }) -> + WordSize * (mnesia:table_info(rabbit_disk_queue, memory) + + ets:info(MsgLocationEts, memory) + + ets:info(FileSummary, memory) + + ets:info(Cache, memory) + + ets:info(Sequences, memory)); +memory_use(#dqstate { operation_mode = disk_only, + file_summary = FileSummary, + sequences = Sequences, + msg_location_dets = MsgLocationDets, + message_cache = Cache, + wordsize = WordSize, + mnesia_bytes_per_record = MnesiaBytesPerRecord, + ets_bytes_per_record = EtsBytesPerRecord }) -> + MnesiaSizeEstimate = + mnesia:table_info(rabbit_disk_queue, size) * MnesiaBytesPerRecord, + MsgLocationSizeEstimate = + dets:info(MsgLocationDets, size) * EtsBytesPerRecord, + (WordSize * (ets:info(FileSummary, memory) + + ets:info(Cache, memory) + + ets:info(Sequences, memory))) + + rabbit_misc:ceil(MnesiaSizeEstimate) + + rabbit_misc:ceil(MsgLocationSizeEstimate). + +to_disk_only_mode(State = #dqstate { operation_mode = disk_only }) -> + State; +to_disk_only_mode(State = #dqstate { operation_mode = ram_disk, + msg_location_dets = MsgLocationDets, + msg_location_ets = MsgLocationEts, + wordsize = WordSize }) -> + rabbit_log:info("Converting disk queue to disk only mode~n", []), + MnesiaMemoryBytes = WordSize * mnesia:table_info(rabbit_disk_queue, memory), + MnesiaSize = lists:max([1, mnesia:table_info(rabbit_disk_queue, size)]), + EtsMemoryBytes = WordSize * ets:info(MsgLocationEts, memory), + EtsSize = lists:max([1, ets:info(MsgLocationEts, size)]), + {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), + disc_only_copies), + ok = dets:from_ets(MsgLocationDets, MsgLocationEts), + true = ets:delete_all_objects(MsgLocationEts), + garbage_collect(), + State #dqstate { operation_mode = disk_only, + mnesia_bytes_per_record = MnesiaMemoryBytes / MnesiaSize, + ets_bytes_per_record = EtsMemoryBytes / EtsSize }. + +to_ram_disk_mode(State = #dqstate { operation_mode = ram_disk }) -> + State; +to_ram_disk_mode(State = #dqstate { operation_mode = disk_only, + msg_location_dets = MsgLocationDets, + msg_location_ets = MsgLocationEts }) -> + rabbit_log:info("Converting disk queue to ram disk mode~n", []), + {atomic, ok} = mnesia:change_table_copy_type(rabbit_disk_queue, node(), + disc_copies), + true = ets:from_dets(MsgLocationEts, MsgLocationDets), + ok = dets:delete_all_objects(MsgLocationDets), + garbage_collect(), + State #dqstate { operation_mode = ram_disk, + mnesia_bytes_per_record = undefined, + ets_bytes_per_record = undefined }. + +noreply(NewState) -> + noreply1(start_memory_timer(NewState)). + +noreply1(NewState = #dqstate { on_sync_txns = [], + commit_timer_ref = undefined }) -> + {noreply, NewState, hibernate}; +noreply1(NewState = #dqstate { commit_timer_ref = undefined }) -> + {noreply, start_commit_timer(NewState), 0}; +noreply1(NewState = #dqstate { on_sync_txns = [] }) -> + {noreply, stop_commit_timer(NewState), hibernate}; +noreply1(NewState) -> + {noreply, NewState, 0}. + +reply(Reply, NewState) -> + reply1(Reply, start_memory_timer(NewState)). + +reply1(Reply, NewState = #dqstate { on_sync_txns = [], + commit_timer_ref = undefined }) -> + {reply, Reply, NewState, hibernate}; +reply1(Reply, NewState = #dqstate { commit_timer_ref = undefined }) -> + {reply, Reply, start_commit_timer(NewState), 0}; +reply1(Reply, NewState = #dqstate { on_sync_txns = [] }) -> + {reply, Reply, stop_commit_timer(NewState), hibernate}; +reply1(Reply, NewState) -> + {reply, Reply, NewState, 0}. + +form_filename(Name) -> + filename:join(base_directory(), Name). + +base_directory() -> + filename:join(mnesia:system_info(directory), "rabbit_disk_queue/"). + +dets_ets_lookup(#dqstate { msg_location_dets = MsgLocationDets, + operation_mode = disk_only }, + Key) -> + dets:lookup(MsgLocationDets, Key); +dets_ets_lookup(#dqstate { msg_location_ets = MsgLocationEts, + operation_mode = ram_disk }, + Key) -> + ets:lookup(MsgLocationEts, Key). + +dets_ets_delete(#dqstate { msg_location_dets = MsgLocationDets, + operation_mode = disk_only }, + Key) -> + ok = dets:delete(MsgLocationDets, Key); +dets_ets_delete(#dqstate { msg_location_ets = MsgLocationEts, + operation_mode = ram_disk }, + Key) -> + true = ets:delete(MsgLocationEts, Key), + ok. + +dets_ets_insert(#dqstate { msg_location_dets = MsgLocationDets, + operation_mode = disk_only }, + Obj) -> + ok = dets:insert(MsgLocationDets, Obj); +dets_ets_insert(#dqstate { msg_location_ets = MsgLocationEts, + operation_mode = ram_disk }, + Obj) -> + true = ets:insert(MsgLocationEts, Obj), + ok. + +dets_ets_insert_new(#dqstate { msg_location_dets = MsgLocationDets, + operation_mode = disk_only }, + Obj) -> + true = dets:insert_new(MsgLocationDets, Obj); +dets_ets_insert_new(#dqstate { msg_location_ets = MsgLocationEts, + operation_mode = ram_disk }, + Obj) -> + true = ets:insert_new(MsgLocationEts, Obj). + +dets_ets_match_object(#dqstate { msg_location_dets = MsgLocationDets, + operation_mode = disk_only }, + Obj) -> + dets:match_object(MsgLocationDets, Obj); +dets_ets_match_object(#dqstate { msg_location_ets = MsgLocationEts, + operation_mode = ram_disk }, + Obj) -> + ets:match_object(MsgLocationEts, Obj). + +get_read_handle(File, Offset, State = + #dqstate { read_file_handles = {ReadHdls, ReadHdlsAge}, + read_file_handles_limit = ReadFileHandlesLimit, + current_file_name = CurName, + current_dirty = IsDirty, + last_sync_offset = SyncOffset + }) -> + State1 = if CurName =:= File andalso IsDirty andalso Offset >= SyncOffset -> + sync_current_file_handle(State); + true -> State + end, + Now = now(), + {FileHdl, ReadHdls1, ReadHdlsAge1} = + case dict:find(File, ReadHdls) of + error -> + {ok, Hdl} = file:open(form_filename(File), + [read, raw, binary, + read_ahead]), + case dict:size(ReadHdls) < ReadFileHandlesLimit of + true -> + {Hdl, ReadHdls, ReadHdlsAge}; + _False -> + {Then, OldFile, ReadHdlsAge2} = + gb_trees:take_smallest(ReadHdlsAge), + {ok, {OldHdl, Then}} = + dict:find(OldFile, ReadHdls), + ok = file:close(OldHdl), + {Hdl, dict:erase(OldFile, ReadHdls), ReadHdlsAge2} + end; + {ok, {Hdl, Then}} -> + {Hdl, ReadHdls, gb_trees:delete(Then, ReadHdlsAge)} + end, + ReadHdls2 = dict:store(File, {FileHdl, Now}, ReadHdls1), + ReadHdlsAge3 = gb_trees:enter(Now, File, ReadHdlsAge1), + {FileHdl, + State1 #dqstate { read_file_handles = {ReadHdls2, ReadHdlsAge3} }}. + +sequence_lookup(Sequences, Q) -> + case ets:lookup(Sequences, Q) of + [] -> + {0, 0}; + [{Q, ReadSeqId, WriteSeqId}] -> + {ReadSeqId, WriteSeqId} + end. + +start_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> + {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, filesync, []), + State #dqstate { commit_timer_ref = TRef }. + +stop_commit_timer(State = #dqstate { commit_timer_ref = undefined }) -> + State; +stop_commit_timer(State = #dqstate { commit_timer_ref = TRef }) -> + {ok, cancel} = timer:cancel(TRef), + State #dqstate { commit_timer_ref = undefined }. + +sync_current_file_handle(State = #dqstate { current_dirty = false, + on_sync_txns = [] }) -> + State; +sync_current_file_handle(State = #dqstate { current_file_handle = CurHdl, + current_dirty = IsDirty, + current_offset = CurOffset, + on_sync_txns = Txns, + last_sync_offset = SyncOffset + }) -> + SyncOffset1 = case IsDirty of + true -> ok = file:sync(CurHdl), + CurOffset; + false -> SyncOffset + end, + State1 = lists:foldl(fun internal_do_tx_commit/2, State, lists:reverse(Txns)), + State1 #dqstate { current_dirty = false, on_sync_txns = [], + last_sync_offset = SyncOffset1 }. + +msg_to_bin(Msg = #basic_message { content = Content }) -> + ClearedContent = rabbit_binary_parser:clear_decoded_content(Content), + term_to_binary(Msg #basic_message { content = ClearedContent }). + +bin_to_msg(MsgBin) -> + binary_to_term(MsgBin). + +remove_cache_entry(MsgId, #dqstate { message_cache = Cache }) -> + true = ets:delete(Cache, MsgId), + ok. + +fetch_and_increment_cache(MsgId, #dqstate { message_cache = Cache }) -> + case ets:lookup(Cache, MsgId) of + [] -> + not_found; + [{MsgId, Message, MsgSize, _RefCount}] -> + NewRefCount = ets:update_counter(Cache, MsgId, {4, 1}), + {Message, MsgSize, NewRefCount} + end. + +decrement_cache(MsgId, #dqstate { message_cache = Cache }) -> + true = try case ets:update_counter(Cache, MsgId, {4, -1}) of + N when N =< 0 -> true = ets:delete(Cache, MsgId); + _N -> true + end + catch error:badarg -> + %% MsgId is not in there because although it's been + %% delivered, it's never actually been read (think: + %% persistent message in mixed queue) + true + end, + ok. + +insert_into_cache(Message = #basic_message { guid = MsgId }, MsgSize, + Forced, State = #dqstate { message_cache = Cache }) -> + case cache_is_full(State) of + true -> ok; + false -> Count = case Forced of + true -> 0; + false -> 1 + end, + true = ets:insert_new(Cache, {MsgId, Message, + MsgSize, Count}), + ok + end. + +cache_is_full(#dqstate { message_cache = Cache }) -> + ets:info(Cache, memory) > ?CACHE_MAX_SIZE. + +%% ---- INTERNAL RAW FUNCTIONS ---- + +internal_deliver(Q, ReadMsg, FakeDeliver, Advance, + State = #dqstate { sequences = Sequences }) -> + case sequence_lookup(Sequences, Q) of + {SeqId, SeqId} -> {ok, empty, State}; + {ReadSeqId, WriteSeqId} when WriteSeqId >= ReadSeqId -> + Remaining = WriteSeqId - ReadSeqId - 1, + {ok, Result, State1} = + internal_read_message( + Q, ReadSeqId, ReadMsg, FakeDeliver, false, State), + true = case Advance of + true -> ets:insert(Sequences, + {Q, ReadSeqId+1, WriteSeqId}); + false -> true + end, + {ok, + case Result of + {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}} -> + {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}, + Remaining}; + {Message, BodySize, Delivered, {MsgId, ReadSeqId}} -> + {Message, BodySize, Delivered, {MsgId, ReadSeqId}, + Remaining} + end, State1} + end. + +internal_foldl(Q, Fun, Init, State = #dqstate { sequences = Sequences }) -> + {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), + internal_foldl(Q, WriteSeqId, Fun, State, Init, ReadSeqId). + +internal_foldl(_Q, SeqId, _Fun, State, Acc, SeqId) -> + {ok, Acc, State}; +internal_foldl(Q, WriteSeqId, Fun, State, Acc, ReadSeqId) -> + {ok, MsgStuff, State1} + = internal_read_message(Q, ReadSeqId, true, true, false, State), + Acc1 = Fun(MsgStuff, Acc), + internal_foldl(Q, WriteSeqId, Fun, State1, Acc1, ReadSeqId + 1). + +internal_read_message(Q, ReadSeqId, ReadMsg, FakeDeliver, ForceInCache, State) -> + [Obj = + #dq_msg_loc {is_delivered = Delivered, msg_id = MsgId}] = + mnesia:dirty_read(rabbit_disk_queue, {Q, ReadSeqId}), + [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = + dets_ets_lookup(State, MsgId), + ok = + if FakeDeliver orelse Delivered -> ok; + true -> + mnesia:dirty_write(rabbit_disk_queue, + Obj #dq_msg_loc {is_delivered = true}) + end, + case ReadMsg of + true -> + case fetch_and_increment_cache(MsgId, State) of + not_found -> + {FileHdl, State1} = get_read_handle(File, Offset, State), + {ok, {MsgBody, IsPersistent, BodySize}} = + read_message_at_offset(FileHdl, Offset, TotalSize), + #basic_message { is_persistent=IsPersistent, guid=MsgId } = + Message = bin_to_msg(MsgBody), + ok = if RefCount > 1 orelse ForceInCache -> + insert_into_cache + (Message, BodySize, ForceInCache, State1); + true -> ok + %% it's not in the cache and we only + %% have 1 queue with the message. So + %% don't bother putting it in the + %% cache. + end, + {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, + State1}; + {Message, BodySize, _RefCount} -> + {ok, {Message, BodySize, Delivered, {MsgId, ReadSeqId}}, + State} + end; + false -> + {ok, {MsgId, IsPersistent, Delivered, {MsgId, ReadSeqId}}, State} + end. + +internal_auto_ack(Q, State) -> + case internal_deliver(Q, false, false, true, State) of + {ok, empty, State1} -> {ok, State1}; + {ok, {_MsgId, _IsPersistent, _Delivered, MsgSeqId, _Remaining}, + State1} -> + remove_messages(Q, [MsgSeqId], true, State1) + end. + +internal_ack(Q, MsgSeqIds, State) -> + remove_messages(Q, MsgSeqIds, true, State). + +%% Q is only needed if MnesiaDelete /= false +remove_messages(Q, MsgSeqIds, MnesiaDelete, + State = #dqstate { file_summary = FileSummary, + current_file_name = CurName + }) -> + Files = + lists:foldl( + fun ({MsgId, SeqId}, Files1) -> + [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] = + dets_ets_lookup(State, MsgId), + Files2 = + case RefCount of + 1 -> + ok = dets_ets_delete(State, MsgId), + ok = remove_cache_entry(MsgId, State), + [{File, ValidTotalSize, ContiguousTop, + Left, Right}] = ets:lookup(FileSummary, File), + ContiguousTop1 = + lists:min([ContiguousTop, Offset]), + true = + ets:insert(FileSummary, + {File, (ValidTotalSize-TotalSize- + ?FILE_PACKING_ADJUSTMENT), + ContiguousTop1, Left, Right}), + if CurName =:= File -> Files1; + true -> sets:add_element(File, Files1) + end; + _ when 1 < RefCount -> + ok = decrement_cache(MsgId, State), + ok = dets_ets_insert( + State, {MsgId, RefCount - 1, File, Offset, + TotalSize, IsPersistent}), + Files1 + end, + ok = case MnesiaDelete of + true -> mnesia:dirty_delete(rabbit_disk_queue, + {Q, SeqId}); + txn -> mnesia:delete(rabbit_disk_queue, + {Q, SeqId}, write); + _ -> ok + end, + Files2 + end, sets:new(), MsgSeqIds), + State1 = compact(Files, State), + {ok, State1}. + +internal_tx_publish(Message = #basic_message { is_persistent = IsPersistent, + guid = MsgId }, + State = #dqstate { current_file_handle = CurHdl, + current_file_name = CurName, + current_offset = CurOffset, + file_summary = FileSummary + }) -> + case dets_ets_lookup(State, MsgId) of + [] -> + %% New message, lots to do + {ok, TotalSize} = append_message(CurHdl, MsgId, msg_to_bin(Message), + IsPersistent), + true = dets_ets_insert_new + (State, {MsgId, 1, CurName, + CurOffset, TotalSize, IsPersistent}), + [{CurName, ValidTotalSize, ContiguousTop, Left, undefined}] = + ets:lookup(FileSummary, CurName), + ValidTotalSize1 = ValidTotalSize + TotalSize + + ?FILE_PACKING_ADJUSTMENT, + ContiguousTop1 = if CurOffset =:= ContiguousTop -> + %% can't be any holes in this file + ValidTotalSize1; + true -> ContiguousTop + end, + true = ets:insert(FileSummary, {CurName, ValidTotalSize1, + ContiguousTop1, Left, undefined}), + NextOffset = CurOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT, + maybe_roll_to_new_file( + NextOffset, State #dqstate {current_offset = NextOffset, + current_dirty = true}); + [{MsgId, RefCount, File, Offset, TotalSize, IsPersistent}] -> + %% We already know about it, just update counter + ok = dets_ets_insert(State, {MsgId, RefCount + 1, File, + Offset, TotalSize, IsPersistent}), + {ok, State} + end. + +internal_tx_commit(Q, PubMsgIds, AckSeqIds, From, + State = #dqstate { current_file_name = CurFile, + current_dirty = IsDirty, + on_sync_txns = Txns, + last_sync_offset = SyncOffset + }) -> + NeedsSync = IsDirty andalso + lists:any(fun ({MsgId, _Delivered}) -> + [{MsgId, _RefCount, File, Offset, + _TotalSize, _IsPersistent}] = + dets_ets_lookup(State, MsgId), + File =:= CurFile andalso Offset >= SyncOffset + end, PubMsgIds), + TxnDetails = {Q, PubMsgIds, AckSeqIds, From}, + case NeedsSync of + true -> + Txns1 = [TxnDetails | Txns], + State #dqstate { on_sync_txns = Txns1 }; + false -> + internal_do_tx_commit(TxnDetails, State) + end. + +internal_do_tx_commit({Q, PubMsgIds, AckSeqIds, From}, + State = #dqstate { sequences = Sequences }) -> + {InitReadSeqId, InitWriteSeqId} = sequence_lookup(Sequences, Q), + WriteSeqId = + rabbit_misc:execute_mnesia_transaction( + fun() -> + ok = mnesia:write_lock_table(rabbit_disk_queue), + {ok, WriteSeqId1} = + lists:foldl( + fun ({MsgId, Delivered}, {ok, SeqId}) -> + {mnesia:write( + rabbit_disk_queue, + #dq_msg_loc { queue_and_seq_id = {Q, SeqId}, + msg_id = MsgId, + is_delivered = Delivered + }, write), + SeqId + 1} + end, {ok, InitWriteSeqId}, PubMsgIds), + WriteSeqId1 + end), + {ok, State1} = remove_messages(Q, AckSeqIds, true, State), + true = case PubMsgIds of + [] -> true; + _ -> ets:insert(Sequences, {Q, InitReadSeqId, WriteSeqId}) + end, + gen_server2:reply(From, ok), + State1. + +internal_publish(Q, Message = #basic_message { guid = MsgId }, + IsDelivered, State) -> + {ok, State1 = #dqstate { sequences = Sequences }} = + internal_tx_publish(Message, State), + {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), + ok = mnesia:dirty_write(rabbit_disk_queue, + #dq_msg_loc { queue_and_seq_id = {Q, WriteSeqId}, + msg_id = MsgId, + is_delivered = IsDelivered}), + true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId + 1}), + {ok, {MsgId, WriteSeqId}, State1}. + +internal_tx_cancel(MsgIds, State) -> + %% we don't need seq ids because we're not touching mnesia, + %% because seqids were never assigned + MsgSeqIds = lists:zip(MsgIds, lists:duplicate(erlang:length(MsgIds), + undefined)), + remove_messages(undefined, MsgSeqIds, false, State). + +internal_requeue(_Q, [], State) -> + {ok, State}; +internal_requeue(Q, MsgSeqIds, State = #dqstate { sequences = Sequences }) -> + %% We know that every seq_id in here is less than the ReadSeqId + %% you'll get if you look up this queue in Sequences (i.e. they've + %% already been delivered). We also know that the rows for these + %% messages are still in rabbit_disk_queue (i.e. they've not been + %% ack'd). + + %% Now, it would be nice if we could adjust the sequence ids in + %% rabbit_disk_queue (mnesia) to create a contiguous block and + %% then drop the ReadSeqId for the queue by the corresponding + %% amount. However, this is not safe because there may be other + %% sequence ids which have been sent out as part of deliveries + %% which are not being requeued. As such, moving things about in + %% rabbit_disk_queue _under_ the current ReadSeqId would result in + %% such sequence ids referring to the wrong messages. + + %% Therefore, the only solution is to take these messages, and to + %% reenqueue them at the top of the queue. Usefully, this only + %% affects the Sequences and rabbit_disk_queue structures - there + %% is no need to physically move the messages about on disk, so + %% MsgLocation and FileSummary stay put (which makes further sense + %% as they have no concept of sequence id anyway). + + {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), + {WriteSeqId1, Q, MsgIds} = + rabbit_misc:execute_mnesia_transaction( + fun() -> + ok = mnesia:write_lock_table(rabbit_disk_queue), + lists:foldl(fun requeue_message/2, {WriteSeqId, Q, []}, + MsgSeqIds) + end), + true = ets:insert(Sequences, {Q, ReadSeqId, WriteSeqId1}), + lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), + {ok, State}. + +requeue_message({{MsgId, SeqId}, IsDelivered}, {WriteSeqId, Q, Acc}) -> + [Obj = #dq_msg_loc { is_delivered = true, msg_id = MsgId }] = + mnesia:read(rabbit_disk_queue, {Q, SeqId}, write), + ok = mnesia:write(rabbit_disk_queue, + Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeqId}, + is_delivered = IsDelivered + }, + write), + ok = mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write), + {WriteSeqId + 1, Q, [MsgId | Acc]}. + +%% move the next N messages from the front of the queue to the back. +internal_requeue_next_n(Q, N, State = #dqstate { sequences = Sequences }) -> + {ReadSeqId, WriteSeqId} = sequence_lookup(Sequences, Q), + if N >= (WriteSeqId - ReadSeqId) -> {ok, State}; + true -> + {ReadSeqIdN, WriteSeqIdN, MsgIds} = + rabbit_misc:execute_mnesia_transaction( + fun() -> + ok = mnesia:write_lock_table(rabbit_disk_queue), + requeue_next_messages(Q, N, ReadSeqId, WriteSeqId, []) + end + ), + true = ets:insert(Sequences, {Q, ReadSeqIdN, WriteSeqIdN}), + lists:foreach(fun (MsgId) -> decrement_cache(MsgId, State) end, MsgIds), + {ok, State} + end. + +requeue_next_messages(_Q, 0, ReadSeq, WriteSeq, Acc) -> + {ReadSeq, WriteSeq, Acc}; +requeue_next_messages(Q, N, ReadSeq, WriteSeq, Acc) -> + [Obj = #dq_msg_loc { msg_id = MsgId }] = + mnesia:read(rabbit_disk_queue, {Q, ReadSeq}, write), + ok = mnesia:write(rabbit_disk_queue, + Obj #dq_msg_loc {queue_and_seq_id = {Q, WriteSeq}}, + write), + ok = mnesia:delete(rabbit_disk_queue, {Q, ReadSeq}, write), + requeue_next_messages(Q, N - 1, ReadSeq + 1, WriteSeq + 1, [MsgId | Acc]). + +internal_purge(Q, State = #dqstate { sequences = Sequences }) -> + case sequence_lookup(Sequences, Q) of + {SeqId, SeqId} -> {ok, 0, State}; + {ReadSeqId, WriteSeqId} -> + {MsgSeqIds, WriteSeqId} = + rabbit_misc:unfold( + fun (SeqId) when SeqId == WriteSeqId -> false; + (SeqId) -> + [#dq_msg_loc { msg_id = MsgId }] = + mnesia:dirty_read(rabbit_disk_queue, {Q, SeqId}), + {true, {MsgId, SeqId}, SeqId + 1} + end, ReadSeqId), + true = ets:insert(Sequences, {Q, WriteSeqId, WriteSeqId}), + {ok, State1} = remove_messages(Q, MsgSeqIds, true, State), + {ok, WriteSeqId - ReadSeqId, State1} + end. + +internal_delete_queue(Q, State) -> + {ok, _Count, State1 = #dqstate { sequences = Sequences }} = + internal_purge(Q, State), %% remove everything undelivered + true = ets:delete(Sequences, Q), + %% now remove everything already delivered + Objs = mnesia:dirty_match_object( + rabbit_disk_queue, + #dq_msg_loc { queue_and_seq_id = {Q, '_'}, + msg_id = '_', + is_delivered = '_' + }), + MsgSeqIds = + lists:map( + fun (#dq_msg_loc { queue_and_seq_id = {_Q, SeqId}, + msg_id = MsgId }) -> + {MsgId, SeqId} end, Objs), + remove_messages(Q, MsgSeqIds, true, State1). + +internal_delete_non_durable_queues( + DurableQueues, State = #dqstate { sequences = Sequences }) -> + ets:foldl( + fun ({Q, _Read, _Write}, {ok, State1}) -> + case sets:is_element(Q, DurableQueues) of + true -> {ok, State1}; + false -> internal_delete_queue(Q, State1) + end + end, {ok, State}, Sequences). + +%% ---- ROLLING OVER THE APPEND FILE ---- + +maybe_roll_to_new_file(Offset, + State = #dqstate { file_size_limit = FileSizeLimit, + current_file_name = CurName, + current_file_handle = CurHdl, + current_file_num = CurNum, + file_summary = FileSummary + } + ) when Offset >= FileSizeLimit -> + State1 = sync_current_file_handle(State), + ok = file:close(CurHdl), + NextNum = CurNum + 1, + NextName = integer_to_list(NextNum) ++ ?FILE_EXTENSION, + {ok, NextHdl} = file:open(form_filename(NextName), + [write, raw, binary, delayed_write]), + ok = preallocate(NextHdl, FileSizeLimit, 0), + true = ets:update_element(FileSummary, CurName, {5, NextName}),%% 5 is Right + true = ets:insert_new(FileSummary, {NextName, 0, 0, CurName, undefined}), + State2 = State1 #dqstate { current_file_name = NextName, + current_file_handle = NextHdl, + current_file_num = NextNum, + current_offset = 0, + last_sync_offset = 0 + }, + {ok, compact(sets:from_list([CurName]), State2)}; +maybe_roll_to_new_file(_, State) -> + {ok, State}. + +preallocate(Hdl, FileSizeLimit, FinalPos) -> + {ok, FileSizeLimit} = file:position(Hdl, {bof, FileSizeLimit}), + ok = file:truncate(Hdl), + {ok, FinalPos} = file:position(Hdl, {bof, FinalPos}), + ok. + +%% ---- GARBAGE COLLECTION / COMPACTION / AGGREGATION ---- + +compact(FilesSet, State) -> + %% smallest number, hence eldest, hence left-most, first + Files = lists:sort(sets:to_list(FilesSet)), + %% foldl reverses, so now youngest/right-most first + RemainingFiles = lists:foldl(fun (File, Acc) -> + delete_empty_files(File, Acc, State) + end, [], Files), + lists:foldl(fun combine_file/2, State, lists:reverse(RemainingFiles)). + +combine_file(File, State = #dqstate { file_summary = FileSummary, + current_file_name = CurName + }) -> + %% the file we're looking at may no longer exist as it may have + %% been deleted within the current GC run + case ets:lookup(FileSummary, File) of + [] -> State; + [FileObj = {File, _ValidData, _ContiguousTop, Left, Right}] -> + GoRight = + fun() -> + case Right of + undefined -> State; + _ when not (CurName == Right) -> + [RightObj] = ets:lookup(FileSummary, Right), + {_, State1} = + adjust_meta_and_combine(FileObj, RightObj, + State), + State1; + _ -> State + end + end, + case Left of + undefined -> + GoRight(); + _ -> [LeftObj] = ets:lookup(FileSummary, Left), + case adjust_meta_and_combine(LeftObj, FileObj, State) of + {true, State1} -> State1; + {false, State} -> GoRight() + end + end + end. + +adjust_meta_and_combine( + LeftObj = {LeftFile, LeftValidData, _LeftContigTop, LeftLeft, RightFile}, + RightObj = {RightFile, RightValidData, _RightContigTop, LeftFile, RightRight}, + State = #dqstate { file_size_limit = FileSizeLimit, + file_summary = FileSummary + }) -> + TotalValidData = LeftValidData + RightValidData, + if FileSizeLimit >= TotalValidData -> + State1 = combine_files(RightObj, LeftObj, State), + %% this could fail if RightRight is undefined + %% left is the 4th field + ets:update_element(FileSummary, RightRight, {4, LeftFile}), + true = ets:insert(FileSummary, {LeftFile, + TotalValidData, TotalValidData, + LeftLeft, + RightRight}), + true = ets:delete(FileSummary, RightFile), + {true, State1}; + true -> {false, State} + end. + +sort_msg_locations_by_offset(Asc, List) -> + Comp = case Asc of + true -> fun erlang:'<'/2; + false -> fun erlang:'>'/2 + end, + lists:sort(fun ({_, _, _, OffA, _, _}, {_, _, _, OffB, _, _}) -> + Comp(OffA, OffB) + end, List). + +truncate_and_extend_file(FileHdl, Lowpoint, Highpoint) -> + {ok, Lowpoint} = file:position(FileHdl, {bof, Lowpoint}), + ok = file:truncate(FileHdl), + ok = preallocate(FileHdl, Highpoint, Lowpoint). + +combine_files({Source, SourceValid, _SourceContiguousTop, + _SourceLeft, _SourceRight}, + {Destination, DestinationValid, DestinationContiguousTop, + _DestinationLeft, _DestinationRight}, + State1) -> + State = close_file(Source, close_file(Destination, State1)), + {ok, SourceHdl} = + file:open(form_filename(Source), + [read, write, raw, binary, read_ahead, delayed_write]), + {ok, DestinationHdl} = + file:open(form_filename(Destination), + [read, write, raw, binary, read_ahead, delayed_write]), + ExpectedSize = SourceValid + DestinationValid, + %% if DestinationValid =:= DestinationContiguousTop then we don't + %% need a tmp file + %% if they're not equal, then we need to write out everything past + %% the DestinationContiguousTop to a tmp file then truncate, + %% copy back in, and then copy over from Source + %% otherwise we just truncate straight away and copy over from Source + if DestinationContiguousTop =:= DestinationValid -> + ok = truncate_and_extend_file(DestinationHdl, + DestinationValid, ExpectedSize); + true -> + Tmp = filename:rootname(Destination) ++ ?FILE_EXTENSION_TMP, + {ok, TmpHdl} = + file:open(form_filename(Tmp), + [read, write, raw, binary, + read_ahead, delayed_write]), + Worklist = + lists:dropwhile( + fun ({_, _, _, Offset, _, _}) + when Offset /= DestinationContiguousTop -> + %% it cannot be that Offset == + %% DestinationContiguousTop because if it + %% was then DestinationContiguousTop would + %% have been extended by TotalSize + Offset < DestinationContiguousTop + %% Given expected access patterns, I suspect + %% that the list should be naturally sorted + %% as we require, however, we need to + %% enforce it anyway + end, sort_msg_locations_by_offset( + true, dets_ets_match_object(State, + {'_', '_', Destination, + '_', '_', '_'}))), + ok = copy_messages( + Worklist, DestinationContiguousTop, DestinationValid, + DestinationHdl, TmpHdl, Destination, State), + TmpSize = DestinationValid - DestinationContiguousTop, + %% so now Tmp contains everything we need to salvage from + %% Destination, and MsgLocationDets has been updated to + %% reflect compaction of Destination so truncate + %% Destination and copy from Tmp back to the end + {ok, 0} = file:position(TmpHdl, {bof, 0}), + ok = truncate_and_extend_file( + DestinationHdl, DestinationContiguousTop, ExpectedSize), + {ok, TmpSize} = file:copy(TmpHdl, DestinationHdl, TmpSize), + %% position in DestinationHdl should now be DestinationValid + ok = file:sync(DestinationHdl), + ok = file:close(TmpHdl), + ok = file:delete(form_filename(Tmp)) + end, + SourceWorkList = + sort_msg_locations_by_offset( + true, dets_ets_match_object(State, + {'_', '_', Source, + '_', '_', '_'})), + ok = copy_messages(SourceWorkList, DestinationValid, ExpectedSize, + SourceHdl, DestinationHdl, Destination, State), + %% tidy up + ok = file:sync(DestinationHdl), + ok = file:close(SourceHdl), + ok = file:close(DestinationHdl), + ok = file:delete(form_filename(Source)), + State. + +copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, + Destination, State) -> + {FinalOffset, BlockStart1, BlockEnd1} = + lists:foldl( + fun ({MsgId, RefCount, _Source, Offset, TotalSize, IsPersistent}, + {CurOffset, BlockStart, BlockEnd}) -> + %% CurOffset is in the DestinationFile. + %% Offset, BlockStart and BlockEnd are in the SourceFile + Size = TotalSize + ?FILE_PACKING_ADJUSTMENT, + %% update MsgLocationDets to reflect change of file and offset + ok = dets_ets_insert + (State, {MsgId, RefCount, Destination, + CurOffset, TotalSize, IsPersistent}), + NextOffset = CurOffset + Size, + if BlockStart =:= undefined -> + %% base case, called only for the first list elem + {NextOffset, Offset, Offset + Size}; + Offset =:= BlockEnd -> + %% extend the current block because the next + %% msg follows straight on + {NextOffset, BlockStart, BlockEnd + Size}; + true -> + %% found a gap, so actually do the work for + %% the previous block + BSize = BlockEnd - BlockStart, + {ok, BlockStart} = + file:position(SourceHdl, {bof, BlockStart}), + {ok, BSize} = + file:copy(SourceHdl, DestinationHdl, BSize), + {NextOffset, Offset, Offset + Size} + end + end, {InitOffset, undefined, undefined}, WorkList), + %% do the last remaining block + BSize1 = BlockEnd1 - BlockStart1, + {ok, BlockStart1} = file:position(SourceHdl, {bof, BlockStart1}), + {ok, BSize1} = file:copy(SourceHdl, DestinationHdl, BSize1), + ok. + +close_file(File, State = #dqstate { read_file_handles = + {ReadHdls, ReadHdlsAge} }) -> + case dict:find(File, ReadHdls) of + error -> + State; + {ok, {Hdl, Then}} -> + ok = file:close(Hdl), + State #dqstate { read_file_handles = + { dict:erase(File, ReadHdls), + gb_trees:delete(Then, ReadHdlsAge) } } + end. + +delete_empty_files(File, Acc, #dqstate { file_summary = FileSummary }) -> + [{File, ValidData, _ContiguousTop, Left, Right}] = + ets:lookup(FileSummary, File), + case ValidData of + %% we should NEVER find the current file in here hence right + %% should always be a file, not undefined + 0 -> + case {Left, Right} of + {undefined, _} when not (is_atom(Right)) -> + %% the eldest file is empty. YAY! + %% left is the 4th field + true = + ets:update_element(FileSummary, Right, {4, undefined}); + {_, _} when not (is_atom(Right)) -> + %% left is the 4th field + true = ets:update_element(FileSummary, Right, {4, Left}), + %% right is the 5th field + true = ets:update_element(FileSummary, Left, {5, Right}) + end, + true = ets:delete(FileSummary, File), + ok = file:delete(form_filename(File)), + Acc; + _ -> [File|Acc] + end. + +%% ---- DISK RECOVERY ---- + +add_index() -> + case mnesia:add_table_index(rabbit_disk_queue, msg_id) of + {atomic, ok} -> ok; + {aborted,{already_exists,rabbit_disk_queue,_}} -> ok; + E -> E + end. + +del_index() -> + case mnesia:del_table_index(rabbit_disk_queue, msg_id) of + {atomic, ok} -> ok; + %% hmm, something weird must be going on, but it's probably + %% not the end of the world + {aborted, {no_exists, rabbit_disk_queue,_}} -> ok; + E1 -> E1 + end. + +load_from_disk(State) -> + %% sorted so that smallest number is first. which also means + %% eldest file (left-most) first + ok = add_index(), + {Files, TmpFiles} = get_disk_queue_files(), + ok = recover_crashed_compactions(Files, TmpFiles), + %% There should be no more tmp files now, so go ahead and load the + %% whole lot + State1 = load_messages(undefined, Files, State), + %% Finally, check there is nothing in mnesia which we haven't + %% loaded + State2 = + rabbit_misc:execute_mnesia_transaction( + fun() -> + ok = mnesia:write_lock_table(rabbit_disk_queue), + {State6, FinalQ, MsgSeqIds2, _Len} = + mnesia:foldl( + fun (#dq_msg_loc { msg_id = MsgId, + queue_and_seq_id = {Q, SeqId} }, + {State3, OldQ, MsgSeqIds, Len}) -> + {State4, MsgSeqIds1, Len1} = + case {OldQ == Q, MsgSeqIds} of + {true, _} when Len < ?BATCH_SIZE -> + {State3, MsgSeqIds, Len}; + {false, []} -> {State3, MsgSeqIds, Len}; + {_, _} -> + {ok, State5} = + remove_messages(Q, MsgSeqIds, + txn, State3), + {State5, [], 0} + end, + case dets_ets_lookup(State4, MsgId) of + [] -> ok = mnesia:delete(rabbit_disk_queue, + {Q, SeqId}, write), + {State4, Q, MsgSeqIds1, Len1}; + [{MsgId, _RefCount, _File, _Offset, + _TotalSize, true}] -> + {State4, Q, MsgSeqIds1, Len1}; + [{MsgId, _RefCount, _File, _Offset, + _TotalSize, false}] -> + {State4, Q, + [{MsgId, SeqId} | MsgSeqIds1], Len1+1} + end + end, {State1, undefined, [], 0}, rabbit_disk_queue), + {ok, State7} = + remove_messages(FinalQ, MsgSeqIds2, txn, State6), + State7 + end), + State8 = extract_sequence_numbers(State2), + ok = del_index(), + {ok, State8}. + +extract_sequence_numbers(State = #dqstate { sequences = Sequences }) -> + true = rabbit_misc:execute_mnesia_transaction( + fun() -> + ok = mnesia:read_lock_table(rabbit_disk_queue), + mnesia:foldl( + fun (#dq_msg_loc { queue_and_seq_id = {Q, SeqId} }, true) -> + NextWrite = SeqId + 1, + case ets:lookup(Sequences, Q) of + [] -> ets:insert_new(Sequences, + {Q, SeqId, NextWrite}); + [Orig = {Q, Read, Write}] -> + Repl = {Q, lists:min([Read, SeqId]), + lists:max([Write, NextWrite])}, + case Orig == Repl of + true -> true; + false -> ets:insert(Sequences, Repl) + end + end + end, true, rabbit_disk_queue) + end), + ok = remove_gaps_in_sequences(State), + State. + +remove_gaps_in_sequences(#dqstate { sequences = Sequences }) -> + %% read the comments at internal_requeue. + + %% Because we are at startup, we know that no sequence ids have + %% been issued (or at least, they were, but have been + %% forgotten). Therefore, we can nicely shuffle up and not + %% worry. Note that I'm choosing to shuffle up, but alternatively + %% we could shuffle downwards. However, I think there's greater + %% likelihood of gaps being at the bottom rather than the top of + %% the queue, so shuffling up should be the better bet. + rabbit_misc:execute_mnesia_transaction( + fun() -> + ok = mnesia:write_lock_table(rabbit_disk_queue), + lists:foreach( + fun ({Q, ReadSeqId, WriteSeqId}) -> + Gap = shuffle_up(Q, ReadSeqId-1, WriteSeqId-1, 0), + ReadSeqId1 = ReadSeqId + Gap, + true = ets:insert(Sequences, + {Q, ReadSeqId1, WriteSeqId}) + end, ets:match_object(Sequences, '_')) + end), + ok. + +shuffle_up(_Q, SeqId, SeqId, Gap) -> + Gap; +shuffle_up(Q, BaseSeqId, SeqId, Gap) -> + GapInc = + case mnesia:read(rabbit_disk_queue, {Q, SeqId}, write) of + [] -> 1; + [Obj] -> + case Gap of + 0 -> ok; + _ -> mnesia:write(rabbit_disk_queue, + Obj #dq_msg_loc { + queue_and_seq_id = {Q, SeqId + Gap }}, + write), + mnesia:delete(rabbit_disk_queue, {Q, SeqId}, write) + end, + 0 + end, + shuffle_up(Q, BaseSeqId, SeqId - 1, Gap + GapInc). + +load_messages(undefined, [], + State = #dqstate { file_summary = FileSummary, + current_file_name = CurName }) -> + true = ets:insert_new(FileSummary, {CurName, 0, 0, undefined, undefined}), + State; +load_messages(Left, [], State) -> + Num = list_to_integer(filename:rootname(Left)), + Offset = + case dets_ets_match_object(State, {'_', '_', Left, '_', '_', '_'}) of + [] -> 0; + L -> + [ {_MsgId, _RefCount, Left, MaxOffset, TotalSize, _IsPersistent} + | _ ] = sort_msg_locations_by_offset(false, L), + MaxOffset + TotalSize + ?FILE_PACKING_ADJUSTMENT + end, + State #dqstate { current_file_num = Num, current_file_name = Left, + current_offset = Offset }; +load_messages(Left, [File|Files], + State = #dqstate { file_summary = FileSummary }) -> + %% [{MsgId, TotalSize, FileOffset}] + {ok, Messages} = scan_file_for_valid_messages(form_filename(File)), + {ValidMessagesRev, ValidTotalSize} = lists:foldl( + fun (Obj = {MsgId, IsPersistent, TotalSize, Offset}, {VMAcc, VTSAcc}) -> + case erlang:length(mnesia:dirty_index_match_object + (rabbit_disk_queue, + #dq_msg_loc { msg_id = MsgId, + queue_and_seq_id = '_', + is_delivered = '_' + }, + msg_id)) of + 0 -> {VMAcc, VTSAcc}; + RefCount -> + true = dets_ets_insert_new + (State, {MsgId, RefCount, File, + Offset, TotalSize, IsPersistent}), + {[Obj | VMAcc], + VTSAcc + TotalSize + ?FILE_PACKING_ADJUSTMENT + } + end + end, {[], 0}, Messages), + %% foldl reverses lists and find_contiguous_block_prefix needs + %% elems in the same order as from scan_file_for_valid_messages + {ContiguousTop, _} = find_contiguous_block_prefix( + lists:reverse(ValidMessagesRev)), + Right = case Files of + [] -> undefined; + [F|_] -> F + end, + true = ets:insert_new(FileSummary, + {File, ValidTotalSize, ContiguousTop, Left, Right}), + load_messages(File, Files, State). + +%% ---- DISK RECOVERY OF FAILED COMPACTION ---- + +recover_crashed_compactions(Files, TmpFiles) -> + lists:foreach(fun (TmpFile) -> + ok = recover_crashed_compactions1(Files, TmpFile) end, + TmpFiles), + ok. + +verify_messages_in_mnesia(MsgIds) -> + lists:foreach( + fun (MsgId) -> + true = 0 < erlang:length(mnesia:dirty_index_match_object + (rabbit_disk_queue, + #dq_msg_loc { msg_id = MsgId, + queue_and_seq_id = '_', + is_delivered = '_' + }, + msg_id)) + end, MsgIds). + +grab_msg_id({MsgId, _IsPersistent, _TotalSize, _FileOffset}) -> + MsgId. + +recover_crashed_compactions1(Files, TmpFile) -> + NonTmpRelatedFile = filename:rootname(TmpFile) ++ ?FILE_EXTENSION, + true = lists:member(NonTmpRelatedFile, Files), + %% [{MsgId, TotalSize, FileOffset}] + {ok, UncorruptedMessagesTmp} = + scan_file_for_valid_messages(form_filename(TmpFile)), + MsgIdsTmp = lists:map(fun grab_msg_id/1, UncorruptedMessagesTmp), + %% all of these messages should appear in the mnesia table, + %% otherwise they wouldn't have been copied out + verify_messages_in_mnesia(MsgIdsTmp), + {ok, UncorruptedMessages} = + scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), + MsgIds = lists:map(fun grab_msg_id/1, UncorruptedMessages), + %% 1) It's possible that everything in the tmp file is also in the + %% main file such that the main file is (prefix ++ + %% tmpfile). This means that compaction failed immediately + %% prior to the final step of deleting the tmp file. Plan: just + %% delete the tmp file + %% 2) It's possible that everything in the tmp file is also in the + %% main file but with holes throughout (or just somthing like + %% main = (prefix ++ hole ++ tmpfile)). This means that + %% compaction wrote out the tmp file successfully and then + %% failed. Plan: just delete the tmp file and allow the + %% compaction to eventually be triggered later + %% 3) It's possible that everything in the tmp file is also in the + %% main file but such that the main file does not end with tmp + %% file (and there are valid messages in the suffix; main = + %% (prefix ++ tmpfile[with extra holes?] ++ suffix)). This + %% means that compaction failed as we were writing out the tmp + %% file. Plan: just delete the tmp file and allow the + %% compaction to eventually be triggered later + %% 4) It's possible that there are messages in the tmp file which + %% are not in the main file. This means that writing out the + %% tmp file succeeded, but then we failed as we were copying + %% them back over to the main file, after truncating the main + %% file. As the main file has already been truncated, it should + %% consist only of valid messages. Plan: Truncate the main file + %% back to before any of the files in the tmp file and copy + %% them over again + case lists:all(fun (MsgId) -> lists:member(MsgId, MsgIds) end, MsgIdsTmp) of + true -> %% we're in case 1, 2 or 3 above. Just delete the tmp file + %% note this also catches the case when the tmp file + %% is empty + ok = file:delete(TmpFile); + _False -> + %% we're in case 4 above. Check that everything in the + %% main file is a valid message in mnesia + verify_messages_in_mnesia(MsgIds), + %% The main file should be contiguous + {Top, MsgIds} = find_contiguous_block_prefix(UncorruptedMessages), + %% we should have that none of the messages in the prefix + %% are in the tmp file + true = lists:all(fun (MsgId) -> + not (lists:member(MsgId, MsgIdsTmp)) + end, MsgIds), + {ok, MainHdl} = file:open(form_filename(NonTmpRelatedFile), + [write, raw, binary, delayed_write]), + {ok, Top} = file:position(MainHdl, Top), + %% wipe out any rubbish at the end of the file + ok = file:truncate(MainHdl), + %% there really could be rubbish at the end of the file - + %% we could have failed after the extending truncate. + %% Remember the head of the list will be the highest entry + %% in the file + [{_, _, TmpTopTotalSize, TmpTopOffset}|_] = UncorruptedMessagesTmp, + TmpSize = TmpTopOffset + TmpTopTotalSize + ?FILE_PACKING_ADJUSTMENT, + ExpectedAbsPos = Top + TmpSize, + {ok, ExpectedAbsPos} = file:position(MainHdl, {cur, TmpSize}), + %% and now extend the main file as big as necessary in a + %% single move if we run out of disk space, this truncate + %% could fail, but we still aren't risking losing data + ok = file:truncate(MainHdl), + {ok, TmpHdl} = file:open(form_filename(TmpFile), + [read, raw, binary, read_ahead]), + {ok, TmpSize} = file:copy(TmpHdl, MainHdl, TmpSize), + ok = file:close(MainHdl), + ok = file:close(TmpHdl), + ok = file:delete(TmpFile), + + {ok, MainMessages} = + scan_file_for_valid_messages(form_filename(NonTmpRelatedFile)), + MsgIdsMain = lists:map(fun grab_msg_id/1, MainMessages), + %% check that everything in MsgIds is in MsgIdsMain + true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, + MsgIds), + %% check that everything in MsgIdsTmp is in MsgIdsMain + true = lists:all(fun (MsgId) -> lists:member(MsgId, MsgIdsMain) end, + MsgIdsTmp) + end, + ok. + +%% this assumes that the messages are ordered such that the highest +%% address is at the head of the list. This matches what +%% scan_file_for_valid_messages produces +find_contiguous_block_prefix([]) -> {0, []}; +find_contiguous_block_prefix([ {MsgId, _IsPersistent, TotalSize, Offset} + | Tail]) -> + case find_contiguous_block_prefix(Tail, Offset, [MsgId]) of + {ok, Acc} -> {Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT, + lists:reverse(Acc)}; + Res -> Res + end. +find_contiguous_block_prefix([], 0, Acc) -> + {ok, Acc}; +find_contiguous_block_prefix([], _N, _Acc) -> + {0, []}; +find_contiguous_block_prefix([{MsgId, _IsPersistent, TotalSize, Offset} | Tail], + ExpectedOffset, Acc) + when ExpectedOffset =:= Offset + TotalSize + ?FILE_PACKING_ADJUSTMENT -> + find_contiguous_block_prefix(Tail, Offset, [MsgId|Acc]); +find_contiguous_block_prefix(List, _ExpectedOffset, _Acc) -> + find_contiguous_block_prefix(List). + +file_name_sort(A, B) -> + ANum = list_to_integer(filename:rootname(A)), + BNum = list_to_integer(filename:rootname(B)), + ANum < BNum. + +get_disk_queue_files() -> + DQFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION, base_directory()), + DQFilesSorted = lists:sort(fun file_name_sort/2, DQFiles), + DQTFiles = filelib:wildcard("*" ++ ?FILE_EXTENSION_TMP, base_directory()), + DQTFilesSorted = lists:sort(fun file_name_sort/2, DQTFiles), + {DQFilesSorted, DQTFilesSorted}. + +%% ---- RAW READING AND WRITING OF FILES ---- + +append_message(FileHdl, MsgId, MsgBody, IsPersistent) when is_binary(MsgBody) -> + BodySize = size(MsgBody), + MsgIdBin = term_to_binary(MsgId), + MsgIdBinSize = size(MsgIdBin), + TotalSize = BodySize + MsgIdBinSize, + StopByte = case IsPersistent of + true -> ?WRITE_OK_PERSISTENT; + false -> ?WRITE_OK_TRANSIENT + end, + case file:write(FileHdl, <>) of + ok -> {ok, TotalSize}; + KO -> KO + end. + +read_message_at_offset(FileHdl, Offset, TotalSize) -> + TotalSizeWriteOkBytes = TotalSize + 1, + case file:position(FileHdl, {bof, Offset}) of + {ok, Offset} -> + case file:read(FileHdl, TotalSize + ?FILE_PACKING_ADJUSTMENT) of + {ok, <>} -> + BodySize = TotalSize - MsgIdBinSize, + case Rest of + <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, + ?WRITE_OK_TRANSIENT:?WRITE_OK_SIZE_BITS>> -> + {ok, {MsgBody, false, BodySize}}; + <<_MsgId:MsgIdBinSize/binary, MsgBody:BodySize/binary, + ?WRITE_OK_PERSISTENT:?WRITE_OK_SIZE_BITS>> -> + {ok, {MsgBody, true, BodySize}} + end; + KO -> KO + end; + KO -> KO + end. + +scan_file_for_valid_messages(File) -> + {ok, Hdl} = file:open(File, [raw, binary, read]), + Valid = scan_file_for_valid_messages(Hdl, 0, []), + %% if something really bad's happened, the close could fail, but ignore + file:close(Hdl), + Valid. + +scan_file_for_valid_messages(FileHdl, Offset, Acc) -> + case read_next_file_entry(FileHdl, Offset) of + {ok, eof} -> {ok, Acc}; + {ok, {corrupted, NextOffset}} -> + scan_file_for_valid_messages(FileHdl, NextOffset, Acc); + {ok, {ok, MsgId, IsPersistent, TotalSize, NextOffset}} -> + scan_file_for_valid_messages( + FileHdl, NextOffset, + [{MsgId, IsPersistent, TotalSize, Offset} | Acc]); + _KO -> + %% bad message, but we may still have recovered some valid messages + {ok, Acc} + end. + +read_next_file_entry(FileHdl, Offset) -> + TwoIntegers = 2 * ?INTEGER_SIZE_BYTES, + case file:read(FileHdl, TwoIntegers) of + {ok, + <>} -> + case {TotalSize =:= 0, MsgIdBinSize =:= 0} of + {true, _} -> {ok, eof}; %% Nothing we can do other than stop + {false, true} -> + %% current message corrupted, try skipping past it + ExpectedAbsPos = + Offset + ?FILE_PACKING_ADJUSTMENT + TotalSize, + case file:position(FileHdl, {cur, TotalSize + 1}) of + {ok, ExpectedAbsPos} -> + {ok, {corrupted, ExpectedAbsPos}}; + {ok, _SomeOtherPos} -> + {ok, eof}; %% seek failed, so give up + KO -> KO + end; + {false, false} -> %% all good, let's continue + case file:read(FileHdl, MsgIdBinSize) of + {ok, <>} -> + ExpectedAbsPos = Offset + TwoIntegers + TotalSize, + case file:position(FileHdl, + {cur, TotalSize - MsgIdBinSize} + ) of + {ok, ExpectedAbsPos} -> + NextOffset = Offset + TotalSize + + ?FILE_PACKING_ADJUSTMENT, + case file:read(FileHdl, 1) of + {ok, + <>} -> + {ok, + {ok, binary_to_term(MsgId), + false, TotalSize, NextOffset}}; + {ok, + <>} -> + {ok, + {ok, binary_to_term(MsgId), + true, TotalSize, NextOffset}}; + {ok, _SomeOtherData} -> + {ok, {corrupted, NextOffset}}; + KO -> KO + end; + {ok, _SomeOtherPos} -> + %% seek failed, so give up + {ok, eof}; + KO -> KO + end; + eof -> {ok, eof}; + KO -> KO + end + end; + eof -> {ok, eof}; + KO -> KO + end. diff --git a/src/rabbit_mixed_queue.erl b/src/rabbit_mixed_queue.erl new file mode 100644 index 00000000..4b0810a8 --- /dev/null +++ b/src/rabbit_mixed_queue.erl @@ -0,0 +1,596 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_mixed_queue). + +-include("rabbit.hrl"). + +-export([init/2]). + +-export([publish/2, publish_delivered/2, deliver/1, ack/2, + tx_publish/2, tx_commit/3, tx_cancel/2, requeue/2, purge/1, + length/1, is_empty/1, delete_queue/1, maybe_prefetch/1]). + +-export([to_disk_only_mode/2, to_mixed_mode/2, info/1, + estimate_queue_memory_and_reset_counters/1]). + +-record(mqstate, { mode, + msg_buf, + queue, + is_durable, + length, + memory_size, + memory_gain, + memory_loss, + prefetcher + } + ). + +-define(TO_DISK_MAX_FLUSH_SIZE, 100000). + +-ifdef(use_specs). + +-type(mode() :: ( 'disk' | 'mixed' )). +-type(mqstate() :: #mqstate { mode :: mode(), + msg_buf :: queue(), + queue :: queue_name(), + is_durable :: bool(), + length :: non_neg_integer(), + memory_size :: (non_neg_integer() | 'undefined'), + memory_gain :: (non_neg_integer() | 'undefined'), + memory_loss :: (non_neg_integer() | 'undefined'), + prefetcher :: (pid() | 'undefined') + }). +-type(acktag() :: ( 'noack' | { non_neg_integer(), non_neg_integer() })). +-type(okmqs() :: {'ok', mqstate()}). + +-spec(init/2 :: (queue_name(), bool()) -> okmqs()). +-spec(publish/2 :: (message(), mqstate()) -> okmqs()). +-spec(publish_delivered/2 :: (message(), mqstate()) -> + {'ok', acktag(), mqstate()}). +-spec(deliver/1 :: (mqstate()) -> + {('empty' | {message(), bool(), acktag(), non_neg_integer()}), + mqstate()}). +-spec(ack/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). +-spec(tx_publish/2 :: (message(), mqstate()) -> okmqs()). +-spec(tx_commit/3 :: ([message()], [acktag()], mqstate()) -> okmqs()). +-spec(tx_cancel/2 :: ([message()], mqstate()) -> okmqs()). +-spec(requeue/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). +-spec(purge/1 :: (mqstate()) -> okmqs()). + +-spec(delete_queue/1 :: (mqstate()) -> {'ok', mqstate()}). + +-spec(length/1 :: (mqstate()) -> non_neg_integer()). +-spec(is_empty/1 :: (mqstate()) -> bool()). + +-spec(to_disk_only_mode/2 :: ([message()], mqstate()) -> okmqs()). +-spec(to_mixed_mode/2 :: ([message()], mqstate()) -> okmqs()). + +-spec(estimate_queue_memory_and_reset_counters/1 :: (mqstate()) -> + {mqstate(), non_neg_integer(), non_neg_integer(), + non_neg_integer()}). +-spec(info/1 :: (mqstate()) -> mode()). + +-endif. + +init(Queue, IsDurable) -> + Len = rabbit_disk_queue:length(Queue), + MsgBuf = inc_queue_length(Queue, queue:new(), Len), + Size = rabbit_disk_queue:foldl( + fun ({Msg = #basic_message { is_persistent = true }, + _Size, _IsDelivered, _AckTag}, Acc) -> + Acc + size_of_message(Msg) + end, 0, Queue), + {ok, #mqstate { mode = disk, msg_buf = MsgBuf, queue = Queue, + is_durable = IsDurable, length = Len, + memory_size = Size, memory_gain = undefined, + memory_loss = undefined, prefetcher = undefined }}. + +size_of_message( + #basic_message { content = #content { payload_fragments_rev = Payload }}) -> + lists:foldl(fun (Frag, SumAcc) -> + SumAcc + size(Frag) + end, 0, Payload). + +to_disk_only_mode(_TxnMessages, State = #mqstate { mode = disk }) -> + {ok, State}; +to_disk_only_mode(TxnMessages, State = + #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, + is_durable = IsDurable, prefetcher = Prefetcher + }) -> + rabbit_log:info("Converting queue to disk only mode: ~p~n", [Q]), + State1 = State #mqstate { mode = disk }, + {MsgBuf1, State2} = + case Prefetcher of + undefined -> {MsgBuf, State1}; + _ -> + case rabbit_queue_prefetcher:drain_and_stop(Prefetcher) of + empty -> {MsgBuf, State1}; + {Fetched, Len} -> + State3 = #mqstate { msg_buf = MsgBuf2 } = + dec_queue_length(Len, State1), + {queue:join(Fetched, MsgBuf2), State3} + end + end, + %% We enqueue _everything_ here. This means that should a message + %% already be in the disk queue we must remove it and add it back + %% in. Fortunately, by using requeue, we avoid rewriting the + %% message on disk. + %% Note we also batch together messages on disk so that we minimise + %% the calls to requeue. + {ok, MsgBuf3} = + send_messages_to_disk(IsDurable, Q, MsgBuf1, 0, 0, [], queue:new()), + %% tx_publish txn messages. Some of these will have been already + %% published if they really are durable and persistent which is + %% why we can't just use our own tx_publish/2 function (would end + %% up publishing twice, so refcount would go wrong in disk_queue). + lists:foreach( + fun (Msg = #basic_message { is_persistent = IsPersistent }) -> + ok = case IsDurable andalso IsPersistent of + true -> ok; + _ -> rabbit_disk_queue:tx_publish(Msg) + end + end, TxnMessages), + garbage_collect(), + {ok, State2 #mqstate { msg_buf = MsgBuf3, prefetcher = undefined }}. + +send_messages_to_disk(IsDurable, Q, Queue, PublishCount, RequeueCount, + Commit, MsgBuf) -> + case queue:out(Queue) of + {empty, _Queue} -> + ok = flush_messages_to_disk_queue(Q, Commit), + [] = flush_requeue_to_disk_queue(Q, RequeueCount, []), + {ok, MsgBuf}; + {{value, {Msg = #basic_message { is_persistent = IsPersistent }, + IsDelivered}}, Queue1} -> + case IsDurable andalso IsPersistent of + true -> %% it's already in the Q + send_messages_to_disk( + IsDurable, Q, Queue1, PublishCount, RequeueCount + 1, + Commit, inc_queue_length(Q, MsgBuf, 1)); + false -> + republish_message_to_disk_queue( + IsDurable, Q, Queue1, PublishCount, RequeueCount, Commit, + MsgBuf, Msg, IsDelivered) + end; + {{value, {Msg, IsDelivered, _AckTag}}, Queue1} -> + %% these have come via the prefetcher, so are no longer in + %% the disk queue so they need to be republished + republish_message_to_disk_queue(IsDelivered, Q, Queue1, + PublishCount, RequeueCount, Commit, + MsgBuf, Msg, IsDelivered); + {{value, {Q, Count}}, Queue1} -> + send_messages_to_disk(IsDurable, Q, Queue1, PublishCount, + RequeueCount + Count, Commit, + inc_queue_length(Q, MsgBuf, Count)) + end. + +republish_message_to_disk_queue(IsDurable, Q, Queue, PublishCount, RequeueCount, + Commit, MsgBuf, Msg = + #basic_message { guid = MsgId }, IsDelivered) -> + Commit1 = flush_requeue_to_disk_queue(Q, RequeueCount, Commit), + ok = rabbit_disk_queue:tx_publish(Msg), + {PublishCount1, Commit2} = + case PublishCount == ?TO_DISK_MAX_FLUSH_SIZE of + true -> ok = flush_messages_to_disk_queue(Q, Commit1), + {1, [{MsgId, IsDelivered}]}; + false -> {PublishCount + 1, [{MsgId, IsDelivered} | Commit1]} + end, + send_messages_to_disk(IsDurable, Q, Queue, PublishCount1, 0, + Commit2, inc_queue_length(Q, MsgBuf, 1)). + +flush_messages_to_disk_queue(_Q, []) -> + ok; +flush_messages_to_disk_queue(Q, Commit) -> + rabbit_disk_queue:tx_commit(Q, lists:reverse(Commit), []). + +flush_requeue_to_disk_queue(_Q, 0, Commit) -> + Commit; +flush_requeue_to_disk_queue(Q, RequeueCount, Commit) -> + ok = flush_messages_to_disk_queue(Q, Commit), + ok = rabbit_disk_queue:requeue_next_n(Q, RequeueCount), + []. + +to_mixed_mode(_TxnMessages, State = #mqstate { mode = mixed }) -> + {ok, State}; +to_mixed_mode(TxnMessages, State = #mqstate { mode = disk, queue = Q, + is_durable = IsDurable }) -> + rabbit_log:info("Converting queue to mixed mode: ~p~n", [Q]), + %% The queue has a token just saying how many msgs are on disk + %% (this is already built for us when in disk mode). + %% Don't actually do anything to the disk + %% Don't start prefetcher just yet because the queue maybe busy - + %% wait for hibernate timeout in the amqqueue_process. + + %% Remove txn messages from disk which are neither persistent and + %% durable. This is necessary to avoid leaks. This is also pretty + %% much the inverse behaviour of our own tx_cancel/2 which is why + %% we're not using it. + Cancel = + lists:foldl( + fun (Msg = #basic_message { is_persistent = IsPersistent }, Acc) -> + case IsDurable andalso IsPersistent of + true -> Acc; + false -> [Msg #basic_message.guid | Acc] + end + end, [], TxnMessages), + ok = if Cancel == [] -> ok; + true -> rabbit_disk_queue:tx_cancel(Cancel) + end, + garbage_collect(), + {ok, State #mqstate { mode = mixed }}. + +inc_queue_length(_Q, MsgBuf, 0) -> + MsgBuf; +inc_queue_length(Q, MsgBuf, Count) -> + {NewCount, MsgBufTail} = + case queue:out_r(MsgBuf) of + {empty, MsgBuf1} -> {Count, MsgBuf1}; + {{value, {Q, Len}}, MsgBuf1} -> {Len + Count, MsgBuf1}; + {{value, _}, _MsgBuf1} -> {Count, MsgBuf} + end, + queue:in({Q, NewCount}, MsgBufTail). + +dec_queue_length(Count, State = #mqstate { queue = Q, msg_buf = MsgBuf }) -> + case queue:out(MsgBuf) of + {{value, {Q, Len}}, MsgBuf1} -> + case Len of + Count -> + maybe_prefetch(State #mqstate { msg_buf = MsgBuf1 }); + _ when Len > Count -> + State #mqstate { msg_buf = queue:in_r({Q, Len-Count}, + MsgBuf1)} + end; + _ -> State + end. + +maybe_prefetch(State = #mqstate { prefetcher = undefined, + mode = mixed, + msg_buf = MsgBuf, + queue = Q }) -> + case queue:peek(MsgBuf) of + {value, {Q, Count}} -> {ok, Prefetcher} = + rabbit_queue_prefetcher:start_link(Q, Count), + State #mqstate { prefetcher = Prefetcher }; + _ -> State + end; +maybe_prefetch(State) -> + State. + +publish(Msg, State = #mqstate { mode = disk, queue = Q, length = Length, + msg_buf = MsgBuf, memory_size = QSize, + memory_gain = Gain }) -> + MsgBuf1 = inc_queue_length(Q, MsgBuf, 1), + ok = rabbit_disk_queue:publish(Q, Msg, false), + MsgSize = size_of_message(Msg), + {ok, State #mqstate { memory_gain = Gain + MsgSize, + memory_size = QSize + MsgSize, + msg_buf = MsgBuf1, length = Length + 1 }}; +publish(Msg = #basic_message { is_persistent = IsPersistent }, State = + #mqstate { queue = Q, mode = mixed, is_durable = IsDurable, + msg_buf = MsgBuf, length = Length, memory_size = QSize, + memory_gain = Gain }) -> + ok = case IsDurable andalso IsPersistent of + true -> rabbit_disk_queue:publish(Q, Msg, false); + false -> ok + end, + MsgSize = size_of_message(Msg), + {ok, State #mqstate { msg_buf = queue:in({Msg, false}, MsgBuf), + length = Length + 1, memory_size = QSize + MsgSize, + memory_gain = Gain + MsgSize }}. + +%% Assumption here is that the queue is empty already (only called via +%% attempt_immediate_delivery). +publish_delivered(Msg = + #basic_message { guid = MsgId, is_persistent = IsPersistent}, + State = + #mqstate { mode = Mode, is_durable = IsDurable, + queue = Q, length = 0, + memory_size = QSize, memory_gain = Gain }) + when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> + ok = rabbit_disk_queue:publish(Q, Msg, true), + MsgSize = size_of_message(Msg), + State1 = State #mqstate { memory_size = QSize + MsgSize, + memory_gain = Gain + MsgSize }, + case IsDurable andalso IsPersistent of + true -> + %% must call phantom_deliver otherwise the msg remains at + %% the head of the queue. This is synchronous, but + %% unavoidable as we need the AckTag + {MsgId, IsPersistent, true, AckTag, 0} = + rabbit_disk_queue:phantom_deliver(Q), + {ok, AckTag, State1}; + false -> + %% in this case, we don't actually care about the ack, so + %% auto ack it (asynchronously). + ok = rabbit_disk_queue:auto_ack_next_message(Q), + {ok, noack, State1} + end; +publish_delivered(Msg, State = + #mqstate { mode = mixed, length = 0, memory_size = QSize, + memory_gain = Gain }) -> + MsgSize = size_of_message(Msg), + {ok, noack, State #mqstate { memory_size = QSize + MsgSize, + memory_gain = Gain + MsgSize }}. + +deliver(State = #mqstate { length = 0 }) -> + {empty, State}; +deliver(State = #mqstate { msg_buf = MsgBuf, queue = Q, + is_durable = IsDurable, length = Length, + prefetcher = Prefetcher }) -> + {{value, Value}, MsgBuf1} = queue:out(MsgBuf), + Rem = Length - 1, + State1 = State #mqstate { length = Rem }, + case Value of + {Msg = #basic_message { guid = MsgId, is_persistent = IsPersistent }, + IsDelivered} -> + AckTag = + case IsDurable andalso IsPersistent of + true -> + {MsgId, IsPersistent, IsDelivered, AckTag1, _PRem} + = rabbit_disk_queue:phantom_deliver(Q), + AckTag1; + false -> + noack + end, + State2 = maybe_prefetch(State1 #mqstate { msg_buf = MsgBuf1 }), + {{Msg, IsDelivered, AckTag, Rem}, State2}; + {Msg = #basic_message { is_persistent = IsPersistent }, + IsDelivered, AckTag} -> + %% message has come via the prefetcher, thus it's been + %% delivered. If it's not persistent+durable, we should + %% ack it now + AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), + {{Msg, IsDelivered, AckTag1, Rem}, + State1 #mqstate { msg_buf = MsgBuf1 }}; + _ when Prefetcher == undefined -> + State2 = dec_queue_length(1, State1), + {Msg = #basic_message { is_persistent = IsPersistent }, + _Size, IsDelivered, AckTag, _PersistRem} + = rabbit_disk_queue:deliver(Q), + AckTag1 = maybe_ack(Q, IsDurable, IsPersistent, AckTag), + {{Msg, IsDelivered, AckTag1, Rem}, State2}; + _ -> + case rabbit_queue_prefetcher:drain(Prefetcher) of + empty -> deliver(State #mqstate { prefetcher = undefined }); + {Fetched, Len, Status} -> + State2 = #mqstate { msg_buf = MsgBuf2 } = + dec_queue_length(Len, State), + deliver(State2 #mqstate + { msg_buf = queue:join(Fetched, MsgBuf2), + prefetcher = case Status of + finished -> undefined; + continuing -> Prefetcher + end }) + end + end. + +maybe_ack(_Q, true, true, AckTag) -> + AckTag; +maybe_ack(Q, _, _, AckTag) -> + ok = rabbit_disk_queue:ack(Q, [AckTag]), + noack. + +remove_noacks(MsgsWithAcks) -> + lists:foldl( + fun ({Msg, noack}, {AccAckTags, AccSize}) -> + {AccAckTags, size_of_message(Msg) + AccSize}; + ({Msg, AckTag}, {AccAckTags, AccSize}) -> + {[AckTag | AccAckTags], size_of_message(Msg) + AccSize} + end, {[], 0}, MsgsWithAcks). + +ack(MsgsWithAcks, State = #mqstate { queue = Q, memory_size = QSize, + memory_loss = Loss }) -> + {AckTags, ASize} = remove_noacks(MsgsWithAcks), + ok = case AckTags of + [] -> ok; + _ -> rabbit_disk_queue:ack(Q, AckTags) + end, + State1 = State #mqstate { memory_size = QSize - ASize, + memory_loss = Loss + ASize }, + {ok, State1}. + +tx_publish(Msg = #basic_message { is_persistent = IsPersistent }, + State = #mqstate { mode = Mode, memory_size = QSize, + is_durable = IsDurable, memory_gain = Gain }) + when Mode =:= disk orelse (IsDurable andalso IsPersistent) -> + ok = rabbit_disk_queue:tx_publish(Msg), + MsgSize = size_of_message(Msg), + {ok, State #mqstate { memory_size = QSize + MsgSize, + memory_gain = Gain + MsgSize }}; +tx_publish(Msg, State = #mqstate { mode = mixed, memory_size = QSize, + memory_gain = Gain }) -> + %% this message will reappear in the tx_commit, so ignore for now + MsgSize = size_of_message(Msg), + {ok, State #mqstate { memory_size = QSize + MsgSize, + memory_gain = Gain + MsgSize }}. + +only_msg_ids(Pubs) -> + lists:map(fun (Msg) -> {Msg #basic_message.guid, false} end, Pubs). + +tx_commit(Publishes, MsgsWithAcks, + State = #mqstate { mode = disk, queue = Q, length = Length, + memory_size = QSize, memory_loss = Loss, + msg_buf = MsgBuf }) -> + {RealAcks, ASize} = remove_noacks(MsgsWithAcks), + ok = if ([] == Publishes) andalso ([] == RealAcks) -> ok; + true -> rabbit_disk_queue:tx_commit(Q, only_msg_ids(Publishes), + RealAcks) + end, + Len = erlang:length(Publishes), + {ok, State #mqstate { length = Length + Len, + msg_buf = inc_queue_length(Q, MsgBuf, Len), + memory_size = QSize - ASize, + memory_loss = Loss + ASize }}; +tx_commit(Publishes, MsgsWithAcks, + State = #mqstate { mode = mixed, queue = Q, msg_buf = MsgBuf, + is_durable = IsDurable, length = Length, + memory_size = QSize, memory_loss = Loss }) -> + {PersistentPubs, MsgBuf1} = + lists:foldl(fun (Msg = #basic_message { is_persistent = IsPersistent }, + {Acc, MsgBuf2}) -> + Acc1 = + case IsPersistent andalso IsDurable of + true -> [ {Msg #basic_message.guid, false} + | Acc]; + false -> Acc + end, + {Acc1, queue:in({Msg, false}, MsgBuf2)} + end, {[], MsgBuf}, Publishes), + {RealAcks, ASize} = remove_noacks(MsgsWithAcks), + ok = case ([] == PersistentPubs) andalso ([] == RealAcks) of + true -> ok; + false -> rabbit_disk_queue:tx_commit( + Q, lists:reverse(PersistentPubs), RealAcks) + end, + {ok, State #mqstate { msg_buf = MsgBuf1, memory_size = QSize - ASize, + length = Length + erlang:length(Publishes), + memory_loss = Loss + ASize }}. + +tx_cancel(Publishes, State = #mqstate { mode = disk, memory_size = QSize, + memory_loss = Loss }) -> + {MsgIds, CSize} = + lists:foldl( + fun (Msg = #basic_message { guid = MsgId }, {MsgIdsAcc, CSizeAcc}) -> + {[MsgId | MsgIdsAcc], CSizeAcc + size_of_message(Msg)} + end, {[], 0}, Publishes), + ok = rabbit_disk_queue:tx_cancel(MsgIds), + {ok, State #mqstate { memory_size = QSize - CSize, + memory_loss = Loss + CSize }}; +tx_cancel(Publishes, State = #mqstate { mode = mixed, is_durable = IsDurable, + memory_size = QSize, + memory_loss = Loss }) -> + {PersistentPubs, CSize} = + lists:foldl( + fun (Msg = #basic_message { is_persistent = IsPersistent, + guid = MsgId }, {Acc, CSizeAcc}) -> + CSizeAcc1 = CSizeAcc + size_of_message(Msg), + {case IsPersistent of + true -> [MsgId | Acc]; + _ -> Acc + end, CSizeAcc1} + end, {[], 0}, Publishes), + ok = + if IsDurable -> + rabbit_disk_queue:tx_cancel(PersistentPubs); + true -> ok + end, + {ok, State #mqstate { memory_size = QSize - CSize, + memory_loss = Loss + CSize }}. + +%% [{Msg, AckTag}] +requeue(MessagesWithAckTags, State = #mqstate { mode = disk, queue = Q, + is_durable = IsDurable, + length = Length, + msg_buf = MsgBuf }) -> + %% here, we may have messages with no ack tags, because of the + %% fact they are not persistent, but nevertheless we want to + %% requeue them. This means publishing them delivered. + Requeue + = lists:foldl( + fun ({#basic_message { is_persistent = IsPersistent }, AckTag}, RQ) + when IsDurable andalso IsPersistent -> + [{AckTag, true} | RQ]; + ({Msg, noack}, RQ) -> + ok = case RQ == [] of + true -> ok; + false -> rabbit_disk_queue:requeue( + Q, lists:reverse(RQ)) + end, + ok = rabbit_disk_queue:publish(Q, Msg, true), + [] + end, [], MessagesWithAckTags), + ok = rabbit_disk_queue:requeue(Q, lists:reverse(Requeue)), + Len = erlang:length(MessagesWithAckTags), + {ok, State #mqstate { length = Length + Len, + msg_buf = inc_queue_length(Q, MsgBuf, Len) }}; +requeue(MessagesWithAckTags, State = #mqstate { mode = mixed, queue = Q, + msg_buf = MsgBuf, + is_durable = IsDurable, + length = Length }) -> + {PersistentPubs, MsgBuf1} = + lists:foldl( + fun ({Msg = #basic_message { is_persistent = IsPersistent }, AckTag}, + {Acc, MsgBuf2}) -> + Acc1 = + case IsDurable andalso IsPersistent of + true -> [{AckTag, true} | Acc]; + false -> Acc + end, + {Acc1, queue:in({Msg, true}, MsgBuf2)} + end, {[], MsgBuf}, MessagesWithAckTags), + ok = case PersistentPubs of + [] -> ok; + _ -> rabbit_disk_queue:requeue(Q, lists:reverse(PersistentPubs)) + end, + {ok, State #mqstate {msg_buf = MsgBuf1, + length = Length + erlang:length(MessagesWithAckTags)}}. + +purge(State = #mqstate { queue = Q, mode = disk, length = Count, + memory_loss = Loss, memory_size = QSize }) -> + Count = rabbit_disk_queue:purge(Q), + {Count, State #mqstate { length = 0, memory_size = 0, + memory_loss = Loss + QSize }}; +purge(State = #mqstate { queue = Q, mode = mixed, length = Length, + memory_loss = Loss, memory_size = QSize, + prefetcher = Prefetcher }) -> + case Prefetcher of + undefined -> ok; + _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) + end, + rabbit_disk_queue:purge(Q), + {Length, + State #mqstate { msg_buf = queue:new(), length = 0, memory_size = 0, + memory_loss = Loss + QSize, prefetcher = undefined }}. + +delete_queue(State = #mqstate { queue = Q, memory_size = QSize, + memory_loss = Loss, prefetcher = Prefetcher + }) -> + case Prefetcher of + undefined -> ok; + _ -> rabbit_queue_prefetcher:drain_and_stop(Prefetcher) + end, + ok = rabbit_disk_queue:delete_queue(Q), + {ok, State #mqstate { length = 0, memory_size = 0, msg_buf = queue:new(), + memory_loss = Loss + QSize, prefetcher = undefined }}. + +length(#mqstate { length = Length }) -> + Length. + +is_empty(#mqstate { length = Length }) -> + 0 == Length. + +estimate_queue_memory_and_reset_counters(State = + #mqstate { memory_size = Size, memory_gain = Gain, memory_loss = Loss }) -> + {State #mqstate { memory_gain = 0, memory_loss = 0 }, 4 * Size, Gain, Loss}. + +info(#mqstate { mode = Mode }) -> + Mode. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 26c8fbe2..b40294f6 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -144,7 +144,14 @@ table_definitions() -> {disc_copies, [node()]}]}, {rabbit_queue, [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}]. + {attributes, record_info(fields, amqqueue)}]}, + {rabbit_disk_queue, + [{record_name, dq_msg_loc}, + {type, set}, + {local_content, true}, + {attributes, record_info(fields, dq_msg_loc)}, + {disc_copies, [node()]}]} + ]. replicated_table_definitions() -> [{Tab, Attrs} || {Tab, Attrs} <- table_definitions(), diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl deleted file mode 100644 index d0d60ddf..00000000 --- a/src/rabbit_persister.erl +++ /dev/null @@ -1,523 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_persister). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([transaction/1, extend_transaction/2, dirty_work/1, - commit_transaction/1, rollback_transaction/1, - force_snapshot/0, serial/0]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - --define(LOG_BUNDLE_DELAY, 5). --define(COMPLETE_BUNDLE_DELAY, 2). - --define(HIBERNATE_AFTER, 10000). - --define(MAX_WRAP_ENTRIES, 500). - --define(PERSISTER_LOG_FORMAT_VERSION, {2, 4}). - --record(pstate, {log_handle, entry_count, deadline, - pending_logs, pending_replies, - snapshot}). - -%% two tables for efficient persistency -%% one maps a key to a message -%% the other maps a key to one or more queues. -%% The aim is to reduce the overload of storing a message multiple times -%% when it appears in several queues. --record(psnapshot, {serial, transactions, messages, queues}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(qmsg() :: {amqqueue(), pkey()}). --type(work_item() :: - {publish, message(), qmsg()} | - {deliver, qmsg()} | - {ack, qmsg()}). - --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(transaction/1 :: ([work_item()]) -> 'ok'). --spec(extend_transaction/2 :: (txn(), [work_item()]) -> 'ok'). --spec(dirty_work/1 :: ([work_item()]) -> 'ok'). --spec(commit_transaction/1 :: (txn()) -> 'ok'). --spec(rollback_transaction/1 :: (txn()) -> 'ok'). --spec(force_snapshot/0 :: () -> 'ok'). --spec(serial/0 :: () -> non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -transaction(MessageList) -> - ?LOGDEBUG("transaction ~p~n", [MessageList]), - TxnKey = rabbit_guid:guid(), - gen_server:call(?SERVER, {transaction, TxnKey, MessageList}, infinity). - -extend_transaction(TxnKey, MessageList) -> - ?LOGDEBUG("extend_transaction ~p ~p~n", [TxnKey, MessageList]), - gen_server:cast(?SERVER, {extend_transaction, TxnKey, MessageList}). - -dirty_work(MessageList) -> - ?LOGDEBUG("dirty_work ~p~n", [MessageList]), - gen_server:cast(?SERVER, {dirty_work, MessageList}). - -commit_transaction(TxnKey) -> - ?LOGDEBUG("commit_transaction ~p~n", [TxnKey]), - gen_server:call(?SERVER, {commit_transaction, TxnKey}, infinity). - -rollback_transaction(TxnKey) -> - ?LOGDEBUG("rollback_transaction ~p~n", [TxnKey]), - gen_server:cast(?SERVER, {rollback_transaction, TxnKey}). - -force_snapshot() -> - gen_server:call(?SERVER, force_snapshot, infinity). - -serial() -> - gen_server:call(?SERVER, serial, infinity). - -%%-------------------------------------------------------------------- - -init(_Args) -> - process_flag(trap_exit, true), - FileName = base_filename(), - ok = filelib:ensure_dir(FileName), - Snapshot = #psnapshot{serial = 0, - transactions = dict:new(), - messages = ets:new(messages, []), - queues = ets:new(queues, [])}, - LogHandle = - case disk_log:open([{name, rabbit_persister}, - {head, current_snapshot(Snapshot)}, - {file, FileName}]) of - {ok, LH} -> LH; - {repaired, LH, {recovered, Recovered}, {badbytes, Bad}} -> - WarningFun = if - Bad > 0 -> fun rabbit_log:warning/2; - true -> fun rabbit_log:info/2 - end, - WarningFun("Repaired persister log - ~p recovered, ~p bad~n", - [Recovered, Bad]), - LH - end, - {Res, LoadedSnapshot} = internal_load_snapshot(LogHandle, Snapshot), - NewSnapshot = LoadedSnapshot#psnapshot{ - serial = LoadedSnapshot#psnapshot.serial + 1}, - case Res of - ok -> - ok = take_snapshot(LogHandle, NewSnapshot); - {error, Reason} -> - rabbit_log:error("Failed to load persister log: ~p~n", [Reason]), - ok = take_snapshot_and_save_old(LogHandle, NewSnapshot) - end, - State = #pstate{log_handle = LogHandle, - entry_count = 0, - deadline = infinity, - pending_logs = [], - pending_replies = [], - snapshot = NewSnapshot}, - {ok, State}. - -handle_call({transaction, Key, MessageList}, From, State) -> - NewState = internal_extend(Key, MessageList, State), - do_noreply(internal_commit(From, Key, NewState)); -handle_call({commit_transaction, TxnKey}, From, State) -> - do_noreply(internal_commit(From, TxnKey, State)); -handle_call(force_snapshot, _From, State) -> - do_reply(ok, flush(true, State)); -handle_call(serial, _From, - State = #pstate{snapshot = #psnapshot{serial = Serial}}) -> - do_reply(Serial, State); -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({rollback_transaction, TxnKey}, State) -> - do_noreply(internal_rollback(TxnKey, State)); -handle_cast({dirty_work, MessageList}, State) -> - do_noreply(internal_dirty_work(MessageList, State)); -handle_cast({extend_transaction, TxnKey, MessageList}, State) -> - do_noreply(internal_extend(TxnKey, MessageList, State)); -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(timeout, State = #pstate{deadline = infinity}) -> - State1 = flush(true, State), - %% TODO: Once we drop support for R11B-5, we can change this to - %% {noreply, State1, hibernate}; - proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State1]); -handle_info(timeout, State) -> - do_noreply(flush(State)); -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, State = #pstate{log_handle = LogHandle}) -> - flush(State), - disk_log:close(LogHandle), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, flush(State)}. - -%%-------------------------------------------------------------------- - -internal_extend(Key, MessageList, State) -> - log_work(fun (ML) -> {extend_transaction, Key, ML} end, - MessageList, State). - -internal_dirty_work(MessageList, State) -> - log_work(fun (ML) -> {dirty_work, ML} end, - MessageList, State). - -internal_commit(From, Key, State = #pstate{snapshot = Snapshot}) -> - Unit = {commit_transaction, Key}, - NewSnapshot = internal_integrate1(Unit, Snapshot), - complete(From, Unit, State#pstate{snapshot = NewSnapshot}). - -internal_rollback(Key, State = #pstate{snapshot = Snapshot}) -> - Unit = {rollback_transaction, Key}, - NewSnapshot = internal_integrate1(Unit, Snapshot), - log(State#pstate{snapshot = NewSnapshot}, Unit). - -complete(From, Item, State = #pstate{deadline = ExistingDeadline, - pending_logs = Logs, - pending_replies = Waiting}) -> - State#pstate{deadline = compute_deadline( - ?COMPLETE_BUNDLE_DELAY, ExistingDeadline), - pending_logs = [Item | Logs], - pending_replies = [From | Waiting]}. - -%% This is made to limit disk usage by writing messages only once onto -%% disk. We keep a table associating pkeys to messages, and provided -%% the list of messages to output is left to right, we can guarantee -%% that pkeys will be a backreference to a message in memory when a -%% "tied" is met. -log_work(CreateWorkUnit, MessageList, - State = #pstate{ - snapshot = Snapshot = #psnapshot{ - messages = Messages}}) -> - Unit = CreateWorkUnit( - rabbit_misc:map_in_order( - fun(M = {publish, Message, QK = {_QName, PKey}}) -> - case ets:lookup(Messages, PKey) of - [_] -> {tied, QK}; - [] -> ets:insert(Messages, {PKey, Message}), - M - end; - (M) -> M - end, - MessageList)), - NewSnapshot = internal_integrate1(Unit, Snapshot), - log(State#pstate{snapshot = NewSnapshot}, Unit). - -log(State = #pstate{deadline = ExistingDeadline, pending_logs = Logs}, - Message) -> - State#pstate{deadline = compute_deadline(?LOG_BUNDLE_DELAY, - ExistingDeadline), - pending_logs = [Message | Logs]}. - -base_filename() -> - rabbit_mnesia:dir() ++ "/rabbit_persister.LOG". - -take_snapshot(LogHandle, OldFileName, Snapshot) -> - ok = disk_log:sync(LogHandle), - %% current_snapshot is the Head (ie. first thing logged) - ok = disk_log:reopen(LogHandle, OldFileName, current_snapshot(Snapshot)). - -take_snapshot(LogHandle, Snapshot) -> - OldFileName = lists:flatten(base_filename() ++ ".previous"), - file:delete(OldFileName), - rabbit_log:info("Rolling persister log to ~p~n", [OldFileName]), - ok = take_snapshot(LogHandle, OldFileName, Snapshot). - -take_snapshot_and_save_old(LogHandle, Snapshot) -> - {MegaSecs, Secs, MicroSecs} = erlang:now(), - Timestamp = MegaSecs * 1000000 + Secs * 1000 + MicroSecs, - OldFileName = lists:flatten(io_lib:format("~s.saved.~p", - [base_filename(), Timestamp])), - rabbit_log:info("Saving persister log in ~p~n", [OldFileName]), - ok = take_snapshot(LogHandle, OldFileName, Snapshot). - -maybe_take_snapshot(Force, State = #pstate{entry_count = EntryCount, - log_handle = LH, - snapshot = Snapshot}) - when Force orelse EntryCount >= ?MAX_WRAP_ENTRIES -> - ok = take_snapshot(LH, Snapshot), - State#pstate{entry_count = 0}; -maybe_take_snapshot(_Force, State) -> - State. - -later_ms(DeltaMilliSec) -> - {MegaSec, Sec, MicroSec} = now(), - %% Note: not normalised. Unimportant for this application. - {MegaSec, Sec, MicroSec + (DeltaMilliSec * 1000)}. - -%% Result = B - A, more or less -time_diff({B1, B2, B3}, {A1, A2, A3}) -> - (B1 - A1) * 1000000 + (B2 - A2) + (B3 - A3) / 1000000.0 . - -compute_deadline(TimerDelay, infinity) -> - later_ms(TimerDelay); -compute_deadline(_TimerDelay, ExistingDeadline) -> - ExistingDeadline. - -compute_timeout(infinity) -> - ?HIBERNATE_AFTER; -compute_timeout(Deadline) -> - DeltaMilliSec = time_diff(Deadline, now()) * 1000.0, - if - DeltaMilliSec =< 1 -> - 0; - true -> - round(DeltaMilliSec) - end. - -do_noreply(State = #pstate{deadline = Deadline}) -> - {noreply, State, compute_timeout(Deadline)}. - -do_reply(Reply, State = #pstate{deadline = Deadline}) -> - {reply, Reply, State, compute_timeout(Deadline)}. - -flush(State) -> flush(false, State). - -flush(ForceSnapshot, State = #pstate{pending_logs = PendingLogs, - pending_replies = Waiting, - log_handle = LogHandle}) -> - State1 = if PendingLogs /= [] -> - disk_log:alog(LogHandle, lists:reverse(PendingLogs)), - State#pstate{entry_count = State#pstate.entry_count + 1}; - true -> - State - end, - State2 = maybe_take_snapshot(ForceSnapshot, State1), - if Waiting /= [] -> - ok = disk_log:sync(LogHandle), - lists:foreach(fun (From) -> gen_server:reply(From, ok) end, - Waiting); - true -> - ok - end, - State2#pstate{deadline = infinity, - pending_logs = [], - pending_replies = []}. - -current_snapshot(_Snapshot = #psnapshot{serial = Serial, - transactions= Ts, - messages = Messages, - queues = Queues}) -> - %% Avoid infinite growth of the table by removing messages not - %% bound to a queue anymore - prune_table(Messages, ets:foldl( - fun ({{_QName, PKey}, _Delivered}, S) -> - sets:add_element(PKey, S) - end, sets:new(), Queues)), - InnerSnapshot = {{serial, Serial}, - {txns, Ts}, - {messages, ets:tab2list(Messages)}, - {queues, ets:tab2list(Queues)}}, - ?LOGDEBUG("Inner snapshot: ~p~n", [InnerSnapshot]), - {persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, - term_to_binary(InnerSnapshot)}. - -prune_table(Tab, Keys) -> - true = ets:safe_fixtable(Tab, true), - ok = prune_table(Tab, Keys, ets:first(Tab)), - true = ets:safe_fixtable(Tab, false). - -prune_table(_Tab, _Keys, '$end_of_table') -> ok; -prune_table(Tab, Keys, Key) -> - case sets:is_element(Key, Keys) of - true -> ok; - false -> ets:delete(Tab, Key) - end, - prune_table(Tab, Keys, ets:next(Tab, Key)). - -internal_load_snapshot(LogHandle, - Snapshot = #psnapshot{messages = Messages, - queues = Queues}) -> - {K, [Loaded_Snapshot | Items]} = disk_log:chunk(LogHandle, start), - case check_version(Loaded_Snapshot) of - {ok, StateBin} -> - {{serial, Serial}, {txns, Ts}, {messages, Ms}, {queues, Qs}} = - binary_to_term(StateBin), - true = ets:insert(Messages, Ms), - true = ets:insert(Queues, Qs), - Snapshot1 = replay(Items, LogHandle, K, - Snapshot#psnapshot{ - serial = Serial, - transactions = Ts}), - Snapshot2 = requeue_messages(Snapshot1), - %% uncompleted transactions are discarded - this is TRTTD - %% since we only get into this code on node restart, so - %% any uncompleted transactions will have been aborted. - {ok, Snapshot2#psnapshot{transactions = dict:new()}}; - {error, Reason} -> {{error, Reason}, Snapshot} - end. - -check_version({persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, - StateBin}) -> - {ok, StateBin}; -check_version({persist_snapshot, {vsn, Vsn}, _StateBin}) -> - {error, {unsupported_persister_log_format, Vsn}}; -check_version(_Other) -> - {error, unrecognised_persister_log_format}. - -requeue_messages(Snapshot = #psnapshot{messages = Messages, - queues = Queues}) -> - Work = ets:foldl(fun accumulate_requeues/2, dict:new(), Queues), - %% unstable parallel map, because order doesn't matter - L = lists:append( - rabbit_misc:upmap( - %% we do as much work as possible in spawned worker - %% processes, but we need to make sure the ets:inserts are - %% performed in self() - fun ({QName, Requeues}) -> - requeue(QName, Requeues, Messages) - end, dict:to_list(Work))), - NewMessages = [{K, M} || {{_Q, K}, M, _D} <- L], - NewQueues = [{QK, D} || {QK, _M, D} <- L], - ets:delete_all_objects(Messages), - ets:delete_all_objects(Queues), - true = ets:insert(Messages, NewMessages), - true = ets:insert(Queues, NewQueues), - %% contains the mutated messages and queues tables - Snapshot. - -accumulate_requeues({{QName, PKey}, Delivered}, Acc) -> - Requeue = {PKey, Delivered}, - dict:update(QName, - fun (Requeues) -> [Requeue | Requeues] end, - [Requeue], - Acc). - -requeue(QName, Requeues, Messages) -> - case rabbit_amqqueue:lookup(QName) of - {ok, #amqqueue{pid = QPid}} -> - RequeueMessages = - [{{QName, PKey}, Message, Delivered} || - {PKey, Delivered} <- Requeues, - {_, Message} <- ets:lookup(Messages, PKey)], - rabbit_amqqueue:redeliver( - QPid, - %% Messages published by the same process receive - %% persistence keys that are monotonically - %% increasing. Since message ordering is defined on a - %% per-channel basis, and channels are bound to specific - %% processes, sorting the list does provide the correct - %% ordering properties. - [{Message, Delivered} || {_, Message, Delivered} <- - lists:sort(RequeueMessages)]), - RequeueMessages; - {error, not_found} -> - [] - end. - -replay([], LogHandle, K, Snapshot) -> - case disk_log:chunk(LogHandle, K) of - {K1, Items} -> - replay(Items, LogHandle, K1, Snapshot); - {K1, Items, Badbytes} -> - rabbit_log:warning("~p bad bytes recovering persister log~n", - [Badbytes]), - replay(Items, LogHandle, K1, Snapshot); - eof -> Snapshot - end; -replay([Item | Items], LogHandle, K, Snapshot) -> - NewSnapshot = internal_integrate_messages(Item, Snapshot), - replay(Items, LogHandle, K, NewSnapshot). - -internal_integrate_messages(Items, Snapshot) -> - lists:foldl(fun (Item, Snap) -> internal_integrate1(Item, Snap) end, - Snapshot, Items). - -internal_integrate1({extend_transaction, Key, MessageList}, - Snapshot = #psnapshot {transactions = Transactions}) -> - NewTransactions = - dict:update(Key, - fun (MessageLists) -> [MessageList | MessageLists] end, - [MessageList], - Transactions), - Snapshot#psnapshot{transactions = NewTransactions}; -internal_integrate1({rollback_transaction, Key}, - Snapshot = #psnapshot{transactions = Transactions}) -> - Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; -internal_integrate1({commit_transaction, Key}, - Snapshot = #psnapshot{transactions = Transactions, - messages = Messages, - queues = Queues}) -> - case dict:find(Key, Transactions) of - {ok, MessageLists} -> - ?LOGDEBUG("persist committing txn ~p~n", [Key]), - lists:foreach(fun (ML) -> perform_work(ML, Messages, Queues) end, - lists:reverse(MessageLists)), - Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; - error -> - Snapshot - end; -internal_integrate1({dirty_work, MessageList}, - Snapshot = #psnapshot {messages = Messages, - queues = Queues}) -> - perform_work(MessageList, Messages, Queues), - Snapshot. - -perform_work(MessageList, Messages, Queues) -> - lists:foreach( - fun (Item) -> perform_work_item(Item, Messages, Queues) end, - MessageList). - -perform_work_item({publish, Message, QK = {_QName, PKey}}, Messages, Queues) -> - ets:insert(Messages, {PKey, Message}), - ets:insert(Queues, {QK, false}); - -perform_work_item({tied, QK}, _Messages, Queues) -> - ets:insert(Queues, {QK, false}); - -perform_work_item({deliver, QK}, _Messages, Queues) -> - %% from R12B-2 onward we could use ets:update_element/3 here - ets:delete(Queues, QK), - ets:insert(Queues, {QK, true}); - -perform_work_item({ack, QK}, _Messages, Queues) -> - ets:delete(Queues, QK). diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl new file mode 100644 index 00000000..5a6c8b39 --- /dev/null +++ b/src/rabbit_queue_mode_manager.erl @@ -0,0 +1,496 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_queue_mode_manager). + +-behaviour(gen_server2). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([register/5, report_memory/3, report_memory/5, info/0, + pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). + +-define(TOTAL_TOKENS, 10000000). +-define(ACTIVITY_THRESHOLD, 25). + +-define(SERVER, ?MODULE). + +-ifdef(use_specs). + +-spec(start_link/0 :: () -> + ({'ok', pid()} | 'ignore' | {'error', any()})). +-spec(register/5 :: (pid(), boolean(), atom(), atom(), list()) -> 'ok'). +-spec(report_memory/3 :: (pid(), non_neg_integer(), bool()) -> 'ok'). +-spec(report_memory/5 :: (pid(), non_neg_integer(), + (non_neg_integer() | 'undefined'), + (non_neg_integer() | 'undefined'), bool()) -> + 'ok'). +-spec(pin_to_disk/1 :: (pid()) -> 'ok'). +-spec(unpin_from_disk/1 :: (pid()) -> 'ok'). +-spec(info/0 :: () -> [{atom(), any()}]). +-spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). + +-endif. + +-record(state, { available_tokens, + mixed_queues, + callbacks, + tokens_per_byte, + lowrate, + hibernate, + disk_mode_pins, + unevictable, + alarmed + }). + +%% Token-credit based memory management + +%% Start off by working out the amount of memory available in the +%% system (RAM). Then, work out how many tokens each byte corresponds +%% to. This is the tokens_per_byte field. When a process registers, it +%% must provide an M-F-A triple to a function that needs one further +%% argument, which is the new mode. This will either be 'mixed' or +%% 'disk'. +%% +%% Processes then report their own memory usage, in bytes, and the +%% manager takes care of the rest. +%% +%% There are a finite number of tokens in the system. These are +%% allocated to processes as they are requested. We keep track of +%% processes which have hibernated, and processes that are doing only +%% a low rate of work. When a request for memory can't be satisfied, +%% we try and evict processes first from the hibernated group, and +%% then from the lowrate group. The hibernated group is a simple +%% queue, and so is implicitly sorted by the order in which processes +%% were added to the queue. This means that when removing from the +%% queue, we hibernate the sleepiest pid first. The lowrate group is a +%% priority queue, where the priority is the truncated log (base e) of +%% the amount of memory allocated. Thus when we remove from the queue, +%% we first remove the queue from the highest bucket. +%% +%% If the request still can't be satisfied after evicting to disk +%% everyone from those two groups (and note that we check first +%% whether or not freeing them would make available enough tokens to +%% satisfy the request rather than just sending all those queues to +%% disk and then going "whoops, didn't help after all"), then we send +%% the requesting process to disk. When a queue registers, it can +%% declare itself "unevictable". If a queue is unevictable then it +%% will not be sent to disk as a result of other processes requesting +%% more memory. However, if it itself is requesting more memory and +%% that request can't be satisfied then it is still sent to disk as +%% before. This feature is only used by the disk_queue, because if the +%% disk queue is not being used, and hibernates, and then memory +%% pressure gets tight, the disk_queue would typically be one of the +%% first processes to get sent to disk, which cripples +%% performance. Thus by setting it unevictable, it is only possible +%% for the disk_queue to be sent to disk when it is active and +%% attempting to increase its memory allocation. +%% +%% If a process has been sent to disk, it continues making +%% requests. As soon as a request can be satisfied (and this can +%% include sending other processes to disk in the way described +%% above), it will be told to come back into mixed mode. We do not +%% keep any information about queues in disk mode. +%% +%% Note that the lowrate and hibernate groups can get very out of +%% date. This is fine, and somewhat unavoidable given the absence of +%% useful APIs for queues. Thus we allow them to get out of date +%% (processes will be left in there when they change groups, +%% duplicates can appear, dead processes are not pruned etc etc etc), +%% and when we go through the groups, summing up their amount of +%% memory, we tidy up at that point. +%% +%% A process which is not evicted to disk, and is requesting a smaller +%% amount of RAM than its last request will always be satisfied. A +%% mixed-mode process that is busy but consuming an unchanging amount +%% of RAM will never be sent to disk. The disk_queue is also managed +%% in the same way. This means that a queue that has gone back to +%% being mixed after being in disk mode now has its messages counted +%% twice as they are counted both in the request made by the queue +%% (even though they may not yet be in RAM (though see the +%% prefetcher)) and also by the disk_queue. Thus the amount of +%% available RAM must be higher when going disk -> mixed than when +%% going mixed -> disk. This is fairly sensible as it reduces the risk +%% of any oscillations occurring. +%% +%% The queue process deliberately reports 4 times its estimated RAM +%% usage, and the disk_queue 2.5 times. In practise, this seems to +%% work well. Note that we are deliberately running out of tokes a +%% little early because of the fact that the mixed -> disk transition +%% can transiently eat a lot of memory and take some time (flushing a +%% few million messages to disk is never going to be instantaneous). + +start_link() -> + gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). + +register(Pid, Unevictable, Module, Function, Args) -> + gen_server2:cast(?SERVER, {register, Pid, Unevictable, + Module, Function, Args}). + +pin_to_disk(Pid) -> + gen_server2:call(?SERVER, {pin_to_disk, Pid}). + +unpin_from_disk(Pid) -> + gen_server2:call(?SERVER, {unpin_from_disk, Pid}). + +report_memory(Pid, Memory, Hibernating) -> + report_memory(Pid, Memory, undefined, undefined, Hibernating). + +report_memory(Pid, Memory, Gain, Loss, Hibernating) -> + gen_server2:cast(?SERVER, + {report_memory, Pid, Memory, Gain, Loss, Hibernating}). + +info() -> + gen_server2:call(?SERVER, info). + +conserve_memory(_Pid, Conserve) -> + gen_server2:pcast(?SERVER, 9, {conserve_memory, Conserve}). + +init([]) -> + process_flag(trap_exit, true), + rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), + {MemTotal, MemUsed, _BigProc} = memsup:get_memory_data(), + MemAvail = MemTotal - MemUsed, + TPB = if MemAvail == 0 -> 0; + true -> ?TOTAL_TOKENS / MemAvail + end, + {ok, #state { available_tokens = ?TOTAL_TOKENS, + mixed_queues = dict:new(), + callbacks = dict:new(), + tokens_per_byte = TPB, + lowrate = priority_queue:new(), + hibernate = queue:new(), + disk_mode_pins = sets:new(), + unevictable = sets:new(), + alarmed = false + }}. + +handle_call({pin_to_disk, Pid}, _From, + State = #state { mixed_queues = Mixed, + callbacks = Callbacks, + available_tokens = Avail, + disk_mode_pins = Pins }) -> + {Res, State1} = + case sets:is_element(Pid, Pins) of + true -> {ok, State}; + false -> + case find_queue(Pid, Mixed) of + {mixed, {OAlloc, _OActivity}} -> + ok = set_queue_mode(Callbacks, Pid, disk), + {ok, State #state { mixed_queues = + dict:erase(Pid, Mixed), + available_tokens = Avail + OAlloc, + disk_mode_pins = + sets:add_element(Pid, Pins) + }}; + disk -> + {ok, State #state { disk_mode_pins = + sets:add_element(Pid, Pins) }} + end + end, + {reply, Res, State1}; + +handle_call({unpin_from_disk, Pid}, _From, + State = #state { disk_mode_pins = Pins }) -> + {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; + +handle_call(info, _From, State) -> + State1 = #state { available_tokens = Avail, + mixed_queues = Mixed, + lowrate = Lazy, + hibernate = Sleepy, + disk_mode_pins = Pins, + unevictable = Unevictable } = + free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying + {reply, [{ available_tokens, Avail }, + { mixed_queues, dict:to_list(Mixed) }, + { lowrate_queues, priority_queue:to_list(Lazy) }, + { hibernated_queues, queue:to_list(Sleepy) }, + { queues_pinned_to_disk, sets:to_list(Pins) }, + { unevictable_queues, sets:to_list(Unevictable) }], State1}. + + +handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, + State = #state { mixed_queues = Mixed, + available_tokens = Avail, + callbacks = Callbacks, + disk_mode_pins = Pins, + tokens_per_byte = TPB, + alarmed = Alarmed }) -> + Req = rabbit_misc:ceil(TPB * Memory), + LowRate = case {BytesGained, BytesLost} of + {undefined, _} -> false; + {_, undefined} -> false; + {G, L} -> G < ?ACTIVITY_THRESHOLD andalso + L < ?ACTIVITY_THRESHOLD + end, + MixedActivity = if Hibernating -> hibernate; + LowRate -> lowrate; + true -> active + end, + {StateN = #state { lowrate = Lazy, hibernate = Sleepy }, ActivityNew} = + case find_queue(Pid, Mixed) of + {mixed, {OAlloc, _OActivity}} -> + Avail1 = Avail + OAlloc, + State1 = + #state { available_tokens = Avail2, mixed_queues = Mixed1 } + = free_upto(Pid, Req, + State #state { available_tokens = Avail1 }), + case Req > Avail2 of + true -> %% nowt we can do, send to disk + ok = set_queue_mode(Callbacks, Pid, disk), + {State1 #state { mixed_queues = + dict:erase(Pid, Mixed1) }, disk}; + false -> %% keep mixed + {State1 #state + { mixed_queues = + dict:store(Pid, {Req, MixedActivity}, Mixed1), + available_tokens = Avail2 - Req }, + MixedActivity} + end; + disk -> + case sets:is_element(Pid, Pins) orelse Alarmed of + true -> + {State, disk}; + false -> + State1 = #state { available_tokens = Avail1, + mixed_queues = Mixed1 } = + free_upto(Pid, Req, State), + case Req > Avail1 orelse Hibernating orelse LowRate of + true -> + %% not enough space, or no compelling + %% reason, so stay as disk + {State1, disk}; + false -> %% can go to mixed mode + set_queue_mode(Callbacks, Pid, mixed), + {State1 #state { + mixed_queues = + dict:store(Pid, {Req, MixedActivity}, Mixed1), + available_tokens = Avail1 - Req }, + MixedActivity} + end + end + end, + StateN1 = + case ActivityNew of + active -> StateN; + disk -> StateN; + lowrate -> + StateN #state { lowrate = add_to_lowrate(Pid, Req, Lazy) }; + hibernate -> + StateN #state { hibernate = queue:in(Pid, Sleepy) } + end, + {noreply, StateN1}; + +handle_cast({register, Pid, IsUnevictable, Module, Function, Args}, + State = #state { callbacks = Callbacks, + unevictable = Unevictable }) -> + _MRef = erlang:monitor(process, Pid), + Unevictable1 = case IsUnevictable of + true -> sets:add_element(Pid, Unevictable); + false -> Unevictable + end, + {noreply, State #state { callbacks = dict:store + (Pid, {Module, Function, Args}, Callbacks), + unevictable = Unevictable1 + }}; + +handle_cast({conserve_memory, Conserve}, State) -> + {noreply, State #state { alarmed = Conserve }}. + +handle_info({'DOWN', _MRef, process, Pid, _Reason}, + State = #state { available_tokens = Avail, + mixed_queues = Mixed }) -> + State1 = case find_queue(Pid, Mixed) of + disk -> + State; + {mixed, {Alloc, _Activity}} -> + State #state { available_tokens = Avail + Alloc, + mixed_queues = dict:erase(Pid, Mixed) } + end, + {noreply, State1}; +handle_info({'EXIT', _Pid, Reason}, State) -> + {stop, Reason, State}; +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, State) -> + State. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +add_to_lowrate(Pid, Alloc, Lazy) -> + Bucket = if Alloc == 0 -> 0; %% can't take log(0) + true -> trunc(math:log(Alloc)) %% log base e + end, + priority_queue:in({Pid, Bucket, Alloc}, Bucket, Lazy). + +find_queue(Pid, Mixed) -> + case dict:find(Pid, Mixed) of + {ok, Value} -> {mixed, Value}; + error -> disk + end. + +set_queue_mode(Callbacks, Pid, Mode) -> + {Module, Function, Args} = dict:fetch(Pid, Callbacks), + erlang:apply(Module, Function, Args ++ [Mode]). + +tidy_and_sum_lazy(IgnorePids, Lazy, Mixed) -> + tidy_and_sum(lowrate, Mixed, + fun (Lazy1) -> + case priority_queue:out(Lazy1) of + {empty, Lazy2} -> + {empty, Lazy2}; + {{value, {Pid, _Bucket, _Alloc}}, Lazy2} -> + {{value, Pid}, Lazy2} + end + end, fun add_to_lowrate/3, IgnorePids, Lazy, + priority_queue:new(), 0). + +tidy_and_sum_sleepy(IgnorePids, Sleepy, Mixed) -> + tidy_and_sum(hibernate, Mixed, fun queue:out/1, + fun (Pid, _Alloc, Queue) -> queue:in(Pid, Queue) end, + IgnorePids, Sleepy, queue:new(), 0). + +tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, DupCheckSet, + CataInit, AnaInit, AllocAcc) -> + case Catamorphism(CataInit) of + {empty, _CataInit} -> {AnaInit, AllocAcc}; + {{value, Pid}, CataInit1} -> + {DupCheckSet1, AnaInit1, AllocAcc1} = + case sets:is_element(Pid, DupCheckSet) of + true -> + {DupCheckSet, AnaInit, AllocAcc}; + false -> + case find_queue(Pid, Mixed) of + {mixed, {Alloc, AtomExpected}} -> + {sets:add_element(Pid, DupCheckSet), + Anamorphism(Pid, Alloc, AnaInit), + Alloc + AllocAcc}; + _ -> + {DupCheckSet, AnaInit, AllocAcc} + end + end, + tidy_and_sum(AtomExpected, Mixed, Catamorphism, Anamorphism, + DupCheckSet1, CataInit1, AnaInit1, AllocAcc1) + end. + +free_upto_lazy(IgnorePids, Callbacks, Lazy, Mixed, Req) -> + free_from( + Callbacks, + fun(_Mixed, Lazy1, LazyAcc) -> + case priority_queue:out(Lazy1) of + {empty, _Lazy2} -> + empty; + {{value, V = {Pid, Bucket, Alloc}}, Lazy2} -> + case sets:is_element(Pid, IgnorePids) of + true -> {skip, Lazy2, + priority_queue:in(V, Bucket, LazyAcc)}; + false -> {value, Lazy2, Pid, Alloc} + end + end + end, fun priority_queue:join/2, Mixed, Lazy, priority_queue:new(), Req). + +free_upto_sleepy(IgnorePids, Callbacks, Sleepy, Mixed, Req) -> + free_from(Callbacks, + fun(Mixed1, Sleepy1, SleepyAcc) -> + case queue:out(Sleepy1) of + {empty, _Sleepy2} -> + empty; + {{value, Pid}, Sleepy2} -> + case sets:is_element(Pid, IgnorePids) of + true -> {skip, Sleepy2, + queue:in(Pid, SleepyAcc)}; + false -> {Alloc, hibernate} = + dict:fetch(Pid, Mixed1), + {value, Sleepy2, Pid, Alloc} + end + end + end, fun queue:join/2, Mixed, Sleepy, queue:new(), Req). + +free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit, AnaInit, Req) -> + case Hylomorphism(Mixed, CataInit, AnaInit) of + empty -> + {AnaInit, Mixed, Req}; + {skip, CataInit1, AnaInit1} -> + free_from(Callbacks, Hylomorphism, BaseCase, Mixed, CataInit1, + AnaInit1, Req); + {value, CataInit1, Pid, Alloc} -> + Mixed1 = dict:erase(Pid, Mixed), + ok = set_queue_mode(Callbacks, Pid, disk), + case Req > Alloc of + true -> free_from(Callbacks, Hylomorphism, BaseCase, Mixed1, + CataInit1, AnaInit, Req - Alloc); + false -> {BaseCase(CataInit1, AnaInit), Mixed1, Req - Alloc} + end + end. + +free_upto(Pid, Req, State = #state { available_tokens = Avail, + mixed_queues = Mixed, + callbacks = Callbacks, + lowrate = Lazy, + hibernate = Sleepy, + unevictable = Unevictable }) + when Req > Avail -> + Unevictable1 = sets:add_element(Pid, Unevictable), + {Sleepy1, SleepySum} = tidy_and_sum_sleepy(Unevictable1, Sleepy, Mixed), + case Req > Avail + SleepySum of + true -> %% not enough in sleepy, have a look in lazy too + {Lazy1, LazySum} = tidy_and_sum_lazy(Unevictable1, Lazy, Mixed), + case Req > Avail + SleepySum + LazySum of + true -> %% can't free enough, just return tidied state + State #state { lowrate = Lazy1, hibernate = Sleepy1 }; + false -> %% need to free all of sleepy, and some of lazy + {Sleepy2, Mixed1, ReqRem} = + free_upto_sleepy(Unevictable1, Callbacks, + Sleepy1, Mixed, Req), + {Lazy2, Mixed2, ReqRem1} = + free_upto_lazy(Unevictable1, Callbacks, + Lazy1, Mixed1, ReqRem), + %% ReqRem1 will be <= 0 because it's + %% likely we'll have freed more than we + %% need, thus Req - ReqRem1 is total freed + State #state { available_tokens = Avail + (Req - ReqRem1), + mixed_queues = Mixed2, lowrate = Lazy2, + hibernate = Sleepy2 } + end; + false -> %% enough available in sleepy, don't touch lazy + {Sleepy2, Mixed1, ReqRem} = + free_upto_sleepy(Unevictable1, Callbacks, Sleepy1, Mixed, Req), + State #state { available_tokens = Avail + (Req - ReqRem), + mixed_queues = Mixed1, hibernate = Sleepy2 } + end; +free_upto(_Pid, _Req, State) -> + State. diff --git a/src/rabbit_queue_prefetcher.erl b/src/rabbit_queue_prefetcher.erl new file mode 100644 index 00000000..c847848d --- /dev/null +++ b/src/rabbit_queue_prefetcher.erl @@ -0,0 +1,258 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_queue_prefetcher). + +-behaviour(gen_server2). + +-export([start_link/2]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-export([publish/2, drain/1, drain_and_stop/1]). + +-include("rabbit.hrl"). + +-define(HIBERNATE_AFTER_MIN, 1000). +-define(DESIRED_HIBERNATE, 10000). + +-record(pstate, + { msg_buf, + buf_length, + target_count, + fetched_count, + queue, + queue_mref + }). + +%% The design of the prefetcher is based on the following: +%% +%% a) It must issue low-priority (-ve) requests to the disk queue for +%% the next message. +%% b) If the prefetcher is empty and the amqqueue_process +%% (mixed_queue) asks it for a message, it must exit immediately, +%% telling the mixed_queue that it is empty so that the mixed_queue +%% can then take the more efficient path and communicate with the +%% disk_queue directly +%% c) No message can accidentally be delivered twice, or lost +%% d) The prefetcher must only cause load when the disk_queue is +%% otherwise idle, and must not worsen performance in a loaded +%% situation. +%% +%% As such, it's a little tricky. It must never issue a call to the +%% disk_queue - if it did, then that could potentially block, thus +%% causing pain to the mixed_queue that needs fast answers as to +%% whether the prefetcher has prefetched content or not. It behaves as +%% follows: +%% +%% 1) disk_queue:prefetch(Q) +%% This is a low priority cast +%% +%% 2) The disk_queue may pick up the cast, at which point it'll read +%% the next message and invoke prefetcher:publish(Msg) - normal +%% priority cast. Note that in the mean time, the mixed_queue could +%% have come along, found the prefetcher empty, asked it to +%% exit. This means the effective "reply" from the disk_queue will +%% go no where. As a result, the disk_queue must perform no +%% modification to the status of the message *or the queue* - do +%% not mark the message delivered, and do not advance the queue. If +%% it did advance the queue and the msg was then lost, then the +%% queue would have lost a msg that the mixed_queue would not pick +%% up. +%% +%% 3) The prefetcher hopefully receives the call from +%% prefetcher:publish(Msg). It replies immediately, and then adds +%% to its internal queue. A cast is not sufficient here because the +%% mixed_queue could come along, drain the prefetcher, thus +%% catching the msg just sent by the disk_queue and then call +%% disk_queue:deliver(Q) which is normal priority call, which could +%% overtake a reply cast from the prefetcher to the disk queue, +%% which would result in the same message being delivered +%% twice. Thus when the disk_queue calls prefetcher:publish(Msg), +%% it is briefly blocked. However, a) the prefetcher replies +%% immediately, and b) the prefetcher should never have more than +%% one item in its mailbox anyway, so this should not cause a +%% problem to the disk_queue. +%% +%% 4) The disk_queue receives the reply, marks the msg at the head of +%% the queue Q as delivered, and advances the Q to the next msg. +%% +%% 5) If the prefetcher has not met its target then it goes back to +%% 1). Otherwise it just sits and waits for the mixed_queue to +%% drain it. +%% +%% Now at some point, the mixed_queue will come along and will call +%% prefetcher:drain() - normal priority call. The prefetcher then +%% replies with its internal queue and the length of that queue. If +%% the prefetch target was reached, the prefetcher stops normally at +%% this point. If it hasn't been reached, then the prefetcher +%% continues to hang around (it almost certainly has issued a +%% disk_queue:prefetch(Q) cast and is waiting for a reply from the +%% disk_queue). +%% +%% If the mixed_queue calls prefetcher:drain() and the prefetcher's +%% internal queue is empty then the prefetcher replies with 'empty', +%% and it exits. This informs the mixed_queue that it should from now +%% on talk directly with the disk_queue and not via the +%% prefetcher. This is more efficient and the mixed_queue will use +%% normal priority blocking calls to the disk_queue and thus get +%% better service that way. +%% +%% The prefetcher may at this point have issued a +%% disk_queue:prefetch(Q) cast which has not yet been picked up by the +%% disk_queue. This msg won't go away and the disk_queue will +%% eventually find it. However, when it does, it'll simply read the +%% next message from the queue (which could now be empty), possibly +%% populate the cache (no harm done) and try and call +%% prefetcher:publish(Msg) which will result in an error, which the +%% disk_queue catches, as the publish call is to a non-existant +%% process. However, the state of the queue and the state of the +%% message has not been altered so the mixed_queue will be able to +%% fetch this message as if it had never been prefetched. +%% +%% The only point at which the queue is advanced and the message +%% marked as delivered is when the prefetcher replies to the publish +%% call. At this point the message has been received by the prefetcher +%% and so we guarantee it will be passed to the mixed_queue when the +%% mixed_queue tries to drain the prefetcher. We must therefore ensure +%% that this msg can't also be delivered to the mixed_queue directly +%% by the disk_queue through the mixed_queue calling +%% disk_queue:deliver(Q) which is why the prefetcher:publish function +%% is a call and not a cast, thus blocking the disk_queue. +%% +%% Finally, the prefetcher is only created when the mixed_queue is +%% operating in mixed mode and it sees that the next N messages are +%% all on disk, and the queue process is about to hibernate. During +%% this phase, the mixed_queue can be asked to go back to disk_only +%% mode. When this happens, it calls prefetcher:drain_and_stop() which +%% behaves like two consecutive calls to drain() - i.e. replies with +%% all prefetched messages and causes the prefetcher to exit. +%% +%% Note there is a flaw here in that we end up marking messages which +%% have come through the prefetcher as delivered even if they don't +%% get delivered (e.g. prefetcher fetches them, then broker +%% dies). However, the alternative is that the mixed_queue must do a +%% call to the disk_queue when it effectively passes them out to the +%% rabbit_writer. This would hurt performance, and even at that stage, +%% we have no guarantee that the message will really go out of the +%% socket. What we do still have is that messages which have the +%% redelivered bit set false really are guaranteed to have not been +%% delivered already. In theory, it's possible that the disk_queue +%% calls prefetcher:publish, blocks waiting for the reply. The +%% prefetcher grabs the message, is drained, the message goes out of +%% the socket and is delivered. The broker then crashes before the +%% disk_queue processes the reply from the prefetcher, thus the fact +%% the message has been delivered is not recorded. However, this can +%% only affect a single message at a time. I.e. there is a tiny chance +%% that the first message delivered on queue recovery that has the +%% redelivery bit set false, has in fact been delivered before. + +start_link(Queue, Count) -> + gen_server2:start_link(?MODULE, [Queue, Count, self()], []). + +publish(Prefetcher, Obj = { #basic_message {}, _Size, _IsDelivered, + _AckTag, _Remaining }) -> + gen_server2:call(Prefetcher, {publish, Obj}, infinity); +publish(Prefetcher, empty) -> + gen_server2:call(Prefetcher, publish_empty, infinity). + +drain(Prefetcher) -> + gen_server2:call(Prefetcher, drain, infinity). + +drain_and_stop(Prefetcher) -> + gen_server2:call(Prefetcher, drain_and_stop, infinity). + +init([Q, Count, QPid]) -> + %% link isn't enough because the signal will not appear if the + %% queue exits normally. Thus have to use monitor. + MRef = erlang:monitor(process, QPid), + State = #pstate { msg_buf = queue:new(), + buf_length = 0, + target_count = Count, + fetched_count = 0, + queue = Q, + queue_mref = MRef + }, + ok = rabbit_disk_queue:prefetch(Q), + {ok, State, infinity, {backoff, ?HIBERNATE_AFTER_MIN, + ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. + +handle_call({publish, { Msg = #basic_message {}, + _Size, IsDelivered, AckTag, _Remaining }}, + DiskQueue, State = + #pstate { fetched_count = Fetched, target_count = Target, + msg_buf = MsgBuf, buf_length = Length, queue = Q + }) -> + gen_server2:reply(DiskQueue, ok), + Timeout = if Fetched + 1 == Target -> hibernate; + true -> ok = rabbit_disk_queue:prefetch(Q), + infinity + end, + MsgBuf1 = queue:in({Msg, IsDelivered, AckTag}, MsgBuf), + {noreply, State #pstate { fetched_count = Fetched + 1, + buf_length = Length + 1, + msg_buf = MsgBuf1 }, Timeout}; +handle_call(publish_empty, _From, State) -> + %% Very odd. This could happen if the queue is deleted or purged + %% and the mixed queue fails to shut us down. + {reply, ok, State, hibernate}; +handle_call(drain, _From, State = #pstate { buf_length = 0 }) -> + {stop, normal, empty, State}; +handle_call(drain, _From, State = #pstate { fetched_count = Count, + target_count = Count, + msg_buf = MsgBuf, + buf_length = Length }) -> + {stop, normal, {MsgBuf, Length, finished}, State}; +handle_call(drain, _From, State = #pstate { msg_buf = MsgBuf, + buf_length = Length }) -> + {reply, {MsgBuf, Length, continuing}, + State #pstate { msg_buf = queue:new(), buf_length = 0 }, infinity}; +handle_call(drain_and_stop, _From, State = #pstate { buf_length = 0 }) -> + {stop, normal, empty, State}; +handle_call(drain_and_stop, _From, State = #pstate { msg_buf = MsgBuf, + buf_length = Length }) -> + {stop, normal, {MsgBuf, Length}, State}. + +handle_cast(Msg, State) -> + exit({unexpected_message_cast_to_prefetcher, Msg, State}). + +handle_info({'DOWN', MRef, process, _Pid, _Reason}, + State = #pstate { queue_mref = MRef }) -> + %% this is the amqqueue_process going down, so we should go down + %% too + {stop, normal, State}. + +terminate(_Reason, _State) -> + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index fbb2b756..f6d42e7c 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -31,7 +31,9 @@ -module(rabbit_tests). --export([all_tests/0, test_parsing/0]). +-compile(export_all). + +-export([all_tests/0, test_parsing/0, test_disk_queue/0]). %% Exported so the hook mechanism can call back -export([handle_hook/3, bad_handle_hook/3, extra_arg_hook/5]). @@ -48,6 +50,7 @@ test_content_prop_roundtrip(Datum, Binary) -> Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion all_tests() -> + passed = test_disk_queue(), passed = test_priority_queue(), passed = test_parsing(), passed = test_topic_matching(), @@ -444,19 +447,17 @@ test_cluster_management() -> end, ClusteringSequence), - %% attempt to convert a disk node into a ram node + %% convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(start_app, []), ok = control_action(stop_app, []), - {error, {cannot_convert_disk_node_to_ram_node, _}} = - control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + ok = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), - %% attempt to join a non-existing cluster as a ram node + %% join a non-existing cluster as a ram node ok = control_action(reset, []), - {error, {unable_to_contact_cluster_nodes, _}} = - control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + ok = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), SecondaryNode = rabbit_misc:localnode(hare), case net_adm:ping(SecondaryNode) of @@ -472,11 +473,12 @@ test_cluster_management2(SecondaryNode) -> NodeS = atom_to_list(node()), SecondaryNodeS = atom_to_list(SecondaryNode), - %% attempt to convert a disk node into a ram node + %% make a disk node ok = control_action(reset, []), ok = control_action(cluster, [NodeS]), - {error, {unable_to_join_cluster, _, _}} = - control_action(cluster, [SecondaryNodeS]), + %% make a ram node + ok = control_action(reset, []), + ok = control_action(cluster, [SecondaryNodeS]), %% join cluster as a ram node ok = control_action(reset, []), @@ -489,21 +491,21 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% attempt to join non-existing cluster as a ram node - {error, _} = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), - + %% join non-existing cluster as a ram node + ok = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn ram node into disk node + ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS, NodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% attempt to convert a disk node into a ram node - {error, {cannot_convert_disk_node_to_ram_node, _}} = - control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% convert a disk node into a ram node + ok = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn a disk node into a ram node + ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), @@ -778,3 +780,503 @@ bad_handle_hook(_, _, _) -> bad:bad(). extra_arg_hook(Hookname, Handler, Args, Extra1, Extra2) -> handle_hook(Hookname, Handler, {Args, Extra1, Extra2}). + +test_disk_queue() -> + rdq_stop(), + rdq_virgin(), + passed = rdq_stress_gc(5000), + passed = rdq_test_startup_with_queue_gaps(), + passed = rdq_test_redeliver(), + passed = rdq_test_purge(), + passed = rdq_test_mixed_queue_modes(), + passed = rdq_test_mode_conversion_mid_txn(), + passed = rdq_test_disk_queue_modes(), + rdq_virgin(), + passed. + +benchmark_disk_queue() -> + rdq_stop(), + % unicode chars are supported properly from r13 onwards + io:format("Msg Count\t| Msg Size\t| Queue Count\t| Startup mu s\t| Publish mu s\t| Pub mu s/msg\t| Pub mu s/byte\t| Deliver mu s\t| Del mu s/msg\t| Del mu s/byte~n", []), + [begin rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSize), + timer:sleep(1000) end || % 1000 milliseconds + MsgSize <- [512, 8192, 32768, 131072], + Qs <- [[1], lists:seq(1,10)], %, lists:seq(1,100), lists:seq(1,1000)], + MsgCount <- [1024, 4096, 16384] + ], + rdq_virgin(), + ok = control_action(stop_app, []), + ok = control_action(start_app, []), + passed. + +rdq_message(MsgId, MsgBody, IsPersistent) -> + rabbit_basic:message(x, <<>>, [], MsgBody, MsgId, IsPersistent). + +rdq_match_message( + #basic_message { guid = MsgId, content = + #content { payload_fragments_rev = [MsgBody] }}, + MsgId, MsgBody, Size) when size(MsgBody) =:= Size -> + ok. + +rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSizeBytes) -> + Startup = rdq_virgin(), + rdq_start(), + QCount = length(Qs), + Msg = <<0:(8*MsgSizeBytes)>>, + List = lists:seq(1, MsgCount), + CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), + {Publish, ok} = + timer:tc(?MODULE, rdq_time_commands, + [[fun() -> [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) + || N <- List, _ <- Qs] end, + fun() -> [ok = rabbit_disk_queue:tx_commit(Q, CommitList, []) + || Q <- Qs] end + ]]), + {Deliver, ok} = + timer:tc( + ?MODULE, rdq_time_commands, + [[fun() -> [begin SeqIds = + [begin + Remaining = MsgCount - N, + {Message, _TSize, false, SeqId, + Remaining} = rabbit_disk_queue:deliver(Q), + ok = rdq_match_message(Message, N, Msg, MsgSizeBytes), + SeqId + end || N <- List], + ok = rabbit_disk_queue:tx_commit(Q, [], SeqIds) + end || Q <- Qs] + end]]), + io:format(" ~15.10B| ~14.10B| ~14.10B| ~14.1f| ~14.1f| ~14.6f| ~14.10f| ~14.1f| ~14.6f| ~14.10f~n", + [MsgCount, MsgSizeBytes, QCount, float(Startup), + float(Publish), (Publish / (MsgCount * QCount)), + (Publish / (MsgCount * QCount * MsgSizeBytes)), + float(Deliver), (Deliver / (MsgCount * QCount)), + (Deliver / (MsgCount * QCount * MsgSizeBytes))]), + rdq_stop(). + +% we know each file is going to be 1024*1024*10 bytes in size (10MB), +% so make sure we have several files, and then keep punching holes in +% a reasonably sensible way. +rdq_stress_gc(MsgCount) -> + rdq_virgin(), + rdq_start(), + MsgSizeBytes = 256*1024, + Msg = <<0:(8*MsgSizeBytes)>>, % 256KB + List = lists:seq(1, MsgCount), + CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), + [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- List], + rabbit_disk_queue:tx_commit(q, CommitList, []), + StartChunk = round(MsgCount / 20), % 5% + AckList = + lists:foldl( + fun (E, Acc) -> + case lists:member(E, Acc) of + true -> Acc; + false -> [E|Acc] + end + end, [], lists:flatten( + lists:reverse( + [ lists:seq(N, MsgCount, N) + || N <- lists:seq(1, round(MsgCount / 2), 1) + ]))), + {Start, End} = lists:split(StartChunk, AckList), + AckList2 = End ++ Start, + MsgIdToSeqDict = + lists:foldl( + fun (MsgId, Acc) -> + Remaining = MsgCount - MsgId, + {Message, _TSize, false, SeqId, Remaining} = + rabbit_disk_queue:deliver(q), + ok = rdq_match_message(Message, MsgId, Msg, MsgSizeBytes), + dict:store(MsgId, SeqId, Acc) + end, dict:new(), List), + %% we really do want to ack each of this individually + [begin {ok, SeqId} = dict:find(MsgId, MsgIdToSeqDict), + rabbit_disk_queue:ack(q, [SeqId]) + end || MsgId <- AckList2], + rabbit_disk_queue:tx_commit(q, [], []), + empty = rabbit_disk_queue:deliver(q), + rdq_stop(), + passed. + +rdq_test_startup_with_queue_gaps() -> + rdq_virgin(), + rdq_start(), + Msg = <<0:(8*256)>>, + Total = 1000, + Half = round(Total/2), + All = lists:seq(1,Total), + CommitAll = lists:zip(All, lists:duplicate(Total, false)), + [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, true)) || N <- All], + rabbit_disk_queue:tx_commit(q, CommitAll, []), + io:format("Publish done~n", []), + %% deliver first half + Seqs = [begin + Remaining = Total - N, + {Message, _TSize, false, SeqId, Remaining} = + rabbit_disk_queue:deliver(q), + ok = rdq_match_message(Message, N, Msg, 256), + SeqId + end || N <- lists:seq(1,Half)], + io:format("Deliver first half done~n", []), + %% ack every other message we have delivered (starting at the _first_) + lists:foldl(fun (SeqId2, true) -> + rabbit_disk_queue:ack(q, [SeqId2]), + false; + (_SeqId2, false) -> + true + end, true, Seqs), + rabbit_disk_queue:tx_commit(q, [], []), + io:format("Acked every other message delivered done~n", []), + rdq_stop(), + rdq_start(), + io:format("Startup (with shuffle) done~n", []), + %% should have shuffled up. So we should now get + %% lists:seq(2,500,2) already delivered + Seqs2 = [begin + Remaining = round(Total - ((Half + N)/2)), + {Message, _TSize, true, SeqId, Remaining} = + rabbit_disk_queue:deliver(q), + ok = rdq_match_message(Message, N, Msg, 256), + SeqId + end || N <- lists:seq(2,Half,2)], + rabbit_disk_queue:tx_commit(q, [], Seqs2), + io:format("Reread non-acked messages done~n", []), + %% and now fetch the rest + Seqs3 = [begin + Remaining = Total - N, + {Message, _TSize, false, SeqId, Remaining} = + rabbit_disk_queue:deliver(q), + ok = rdq_match_message(Message, N, Msg, 256), + SeqId + end || N <- lists:seq(1 + Half,Total)], + rabbit_disk_queue:tx_commit(q, [], Seqs3), + io:format("Read second half done~n", []), + empty = rabbit_disk_queue:deliver(q), + rdq_stop(), + passed. + +rdq_test_redeliver() -> + rdq_virgin(), + rdq_start(), + Msg = <<0:(8*256)>>, + Total = 1000, + Half = round(Total/2), + All = lists:seq(1,Total), + CommitAll = lists:zip(All, lists:duplicate(Total, false)), + [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], + rabbit_disk_queue:tx_commit(q, CommitAll, []), + io:format("Publish done~n", []), + %% deliver first half + Seqs = [begin + Remaining = Total - N, + {Message, _TSize, false, SeqId, Remaining} = + rabbit_disk_queue:deliver(q), + ok = rdq_match_message(Message, N, Msg, 256), + SeqId + end || N <- lists:seq(1,Half)], + io:format("Deliver first half done~n", []), + %% now requeue every other message (starting at the _first_) + %% and ack the other ones + lists:foldl(fun (SeqId2, true) -> + rabbit_disk_queue:requeue(q, [{SeqId2, true}]), + false; + (SeqId2, false) -> + rabbit_disk_queue:ack(q, [SeqId2]), + true + end, true, Seqs), + rabbit_disk_queue:tx_commit(q, [], []), + io:format("Redeliver and acking done~n", []), + %% we should now get the 2nd half in order, followed by + %% every-other-from-the-first-half + Seqs2 = [begin + Remaining = round(Total - N + (Half/2)), + {Message, _TSize, false, SeqId, Remaining} = + rabbit_disk_queue:deliver(q), + ok = rdq_match_message(Message, N, Msg, 256), + SeqId + end || N <- lists:seq(1+Half, Total)], + rabbit_disk_queue:tx_commit(q, [], Seqs2), + Seqs3 = [begin + Remaining = round((Half - N) / 2) - 1, + {Message, _TSize, true, SeqId, Remaining} = + rabbit_disk_queue:deliver(q), + ok = rdq_match_message(Message, N, Msg, 256), + SeqId + end || N <- lists:seq(1, Half, 2)], + rabbit_disk_queue:tx_commit(q, [], Seqs3), + empty = rabbit_disk_queue:deliver(q), + rdq_stop(), + passed. + +rdq_test_purge() -> + rdq_virgin(), + rdq_start(), + Msg = <<0:(8*256)>>, + Total = 1000, + Half = round(Total/2), + All = lists:seq(1,Total), + CommitAll = lists:zip(All, lists:duplicate(Total, false)), + [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], + rabbit_disk_queue:tx_commit(q, CommitAll, []), + io:format("Publish done~n", []), + %% deliver first half + Seqs = [begin + Remaining = Total - N, + {Message, _TSize, false, SeqId, Remaining} = + rabbit_disk_queue:deliver(q), + ok = rdq_match_message(Message, N, Msg, 256), + SeqId + end || N <- lists:seq(1,Half)], + io:format("Deliver first half done~n", []), + rabbit_disk_queue:purge(q), + io:format("Purge done~n", []), + rabbit_disk_queue:tx_commit(q, [], Seqs), + io:format("Ack first half done~n", []), + empty = rabbit_disk_queue:deliver(q), + rdq_stop(), + passed. + +rdq_new_mixed_queue(Q, Durable, Disk) -> + {ok, MS} = rabbit_mixed_queue:init(Q, Durable), + {MS1, _, _, _} = + rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), + case Disk of + true -> {ok, MS2} = rabbit_mixed_queue:to_disk_only_mode([], MS1), + MS2; + false -> MS1 + end. + +rdq_test_mixed_queue_modes() -> + rdq_virgin(), + rdq_start(), + Payload = <<0:(8*256)>>, + MS = rdq_new_mixed_queue(q, true, false), + MS2 = lists:foldl( + fun (_N, MS1) -> + Msg = rabbit_basic:message(x, <<>>, [], Payload), + {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), + MS1a + end, MS, lists:seq(1,10)), + MS4 = lists:foldl( + fun (_N, MS3) -> + Msg = (rabbit_basic:message(x, <<>>, [], Payload)) + #basic_message { is_persistent = true }, + {ok, MS3a} = rabbit_mixed_queue:publish(Msg, MS3), + MS3a + end, MS2, lists:seq(1,10)), + MS6 = lists:foldl( + fun (_N, MS5) -> + Msg = rabbit_basic:message(x, <<>>, [], Payload), + {ok, MS5a} = rabbit_mixed_queue:publish(Msg, MS5), + MS5a + end, MS4, lists:seq(1,10)), + 30 = rabbit_mixed_queue:length(MS6), + io:format("Published a mixture of messages; ~w~n", + [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS6)]), + {ok, MS7} = rabbit_mixed_queue:to_disk_only_mode([], MS6), + 30 = rabbit_mixed_queue:length(MS7), + io:format("Converted to disk only mode; ~w~n", + [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS7)]), + {ok, MS8} = rabbit_mixed_queue:to_mixed_mode([], MS7), + 30 = rabbit_mixed_queue:length(MS8), + io:format("Converted to mixed mode; ~w~n", + [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS8)]), + MS10 = + lists:foldl( + fun (N, MS9) -> + Rem = 30 - N, + {{#basic_message { is_persistent = false }, + false, _AckTag, Rem}, + MS9a} = rabbit_mixed_queue:deliver(MS9), + MS9a + end, MS8, lists:seq(1,10)), + 20 = rabbit_mixed_queue:length(MS10), + io:format("Delivered initial non persistent messages~n"), + {ok, MS11} = rabbit_mixed_queue:to_disk_only_mode([], MS10), + 20 = rabbit_mixed_queue:length(MS11), + io:format("Converted to disk only mode~n"), + rdq_stop(), + rdq_start(), + MS12 = rdq_new_mixed_queue(q, true, false), + 10 = rabbit_mixed_queue:length(MS12), + io:format("Recovered queue~n"), + {MS14, AckTags} = + lists:foldl( + fun (N, {MS13, AcksAcc}) -> + Rem = 10 - N, + {{Msg = #basic_message { is_persistent = true }, + false, AckTag, Rem}, + MS13a} = rabbit_mixed_queue:deliver(MS13), + {MS13a, [{Msg, AckTag} | AcksAcc]} + end, {MS12, []}, lists:seq(1,10)), + 0 = rabbit_mixed_queue:length(MS14), + {ok, MS15} = rabbit_mixed_queue:ack(AckTags, MS14), + io:format("Delivered and acked all messages~n"), + {ok, MS16} = rabbit_mixed_queue:to_disk_only_mode([], MS15), + 0 = rabbit_mixed_queue:length(MS16), + io:format("Converted to disk only mode~n"), + rdq_stop(), + rdq_start(), + MS17 = rdq_new_mixed_queue(q, true, false), + 0 = rabbit_mixed_queue:length(MS17), + {MS17,0,0,0} = rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS17), + io:format("Recovered queue~n"), + rdq_stop(), + passed. + +rdq_test_mode_conversion_mid_txn() -> + Payload = <<0:(8*256)>>, + MsgIdsA = lists:seq(0,9), + MsgsA = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, + (0 == MsgId rem 2)) + || MsgId <- MsgIdsA ], + MsgIdsB = lists:seq(10,20), + MsgsB = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, + (0 == MsgId rem 2)) + || MsgId <- MsgIdsB ], + + rdq_virgin(), + rdq_start(), + MS0 = rdq_new_mixed_queue(q, true, false), + passed = rdq_tx_publish_mixed_alter_commit_get( + MS0, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, commit), + + rdq_stop_virgin_start(), + MS1 = rdq_new_mixed_queue(q, true, false), + passed = rdq_tx_publish_mixed_alter_commit_get( + MS1, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, cancel), + + + rdq_stop_virgin_start(), + MS2 = rdq_new_mixed_queue(q, true, true), + passed = rdq_tx_publish_mixed_alter_commit_get( + MS2, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, commit), + + rdq_stop_virgin_start(), + MS3 = rdq_new_mixed_queue(q, true, true), + passed = rdq_tx_publish_mixed_alter_commit_get( + MS3, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, cancel), + + rdq_stop(), + passed. + +rdq_tx_publish_mixed_alter_commit_get(MS0, MsgsA, MsgsB, ChangeFun, CommitOrCancel) -> + 0 = rabbit_mixed_queue:length(MS0), + MS2 = lists:foldl( + fun (Msg, MS1) -> + {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), + MS1a + end, MS0, MsgsA), + Len0 = length(MsgsA), + Len0 = rabbit_mixed_queue:length(MS2), + MS4 = lists:foldl( + fun (Msg, MS3) -> + {ok, MS3a} = rabbit_mixed_queue:tx_publish(Msg, MS3), + MS3a + end, MS2, MsgsB), + Len0 = rabbit_mixed_queue:length(MS4), + {ok, MS5} = ChangeFun(MsgsB, MS4), + Len0 = rabbit_mixed_queue:length(MS5), + {ok, MS9} = + case CommitOrCancel of + commit -> + {ok, MS6} = rabbit_mixed_queue:tx_commit(MsgsB, [], MS5), + Len1 = Len0 + length(MsgsB), + Len1 = rabbit_mixed_queue:length(MS6), + {AckTags, MS8} = + lists:foldl( + fun (Msg, {Acc, MS7}) -> + Rem = Len1 - (Msg #basic_message.guid) - 1, + {{Msg, false, AckTag, Rem}, MS7a} = + rabbit_mixed_queue:deliver(MS7), + {[{Msg, AckTag} | Acc], MS7a} + end, {[], MS6}, MsgsA ++ MsgsB), + 0 = rabbit_mixed_queue:length(MS8), + rabbit_mixed_queue:ack(AckTags, MS8); + cancel -> + {ok, MS6} = rabbit_mixed_queue:tx_cancel(MsgsB, MS5), + Len0 = rabbit_mixed_queue:length(MS6), + {AckTags, MS8} = + lists:foldl( + fun (Msg, {Acc, MS7}) -> + Rem = Len0 - (Msg #basic_message.guid) - 1, + {{Msg, false, AckTag, Rem}, MS7a} = + rabbit_mixed_queue:deliver(MS7), + {[{Msg, AckTag} | Acc], MS7a} + end, {[], MS6}, MsgsA), + 0 = rabbit_mixed_queue:length(MS8), + rabbit_mixed_queue:ack(AckTags, MS8) + end, + 0 = rabbit_mixed_queue:length(MS9), + Msg = rdq_message(0, <<0:256>>, false), + {ok, AckTag, MS10} = rabbit_mixed_queue:publish_delivered(Msg, MS9), + {ok,MS11} = rabbit_mixed_queue:ack([{Msg, AckTag}], MS10), + 0 = rabbit_mixed_queue:length(MS11), + passed. + +rdq_test_disk_queue_modes() -> + rdq_virgin(), + rdq_start(), + Msg = <<0:(8*256)>>, + Total = 1000, + Half1 = lists:seq(1,round(Total/2)), + Half2 = lists:seq(1 + round(Total/2), Total), + CommitHalf1 = lists:zip(Half1, lists:duplicate(round(Total/2), false)), + CommitHalf2 = lists:zip(Half2, lists:duplicate + (Total - round(Total/2), false)), + [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half1], + ok = rabbit_disk_queue:tx_commit(q, CommitHalf1, []), + io:format("Publish done~n", []), + ok = rabbit_disk_queue:to_disk_only_mode(), + io:format("To Disk Only done~n", []), + [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half2], + ok = rabbit_disk_queue:tx_commit(q, CommitHalf2, []), + Seqs = [begin + Remaining = Total - N, + {Message, _TSize, false, SeqId, Remaining} = + rabbit_disk_queue:deliver(q), + ok = rdq_match_message(Message, N, Msg, 256), + SeqId + end || N <- Half1], + io:format("Deliver first half done~n", []), + ok = rabbit_disk_queue:to_ram_disk_mode(), + io:format("To RAM Disk done~n", []), + Seqs2 = [begin + Remaining = Total - N, + {Message, _TSize, false, SeqId, Remaining} = + rabbit_disk_queue:deliver(q), + ok = rdq_match_message(Message, N, Msg, 256), + SeqId + end || N <- Half2], + io:format("Deliver second half done~n", []), + ok = rabbit_disk_queue:tx_commit(q, [], Seqs), + ok = rabbit_disk_queue:to_disk_only_mode(), + ok = rabbit_disk_queue:tx_commit(q, [], Seqs2), + empty = rabbit_disk_queue:deliver(q), + rdq_stop(), + passed. + +rdq_time_commands(Funcs) -> + lists:foreach(fun (F) -> F() end, Funcs). + +rdq_virgin() -> + {Micros, {ok, _}} = + timer:tc(rabbit_disk_queue, start_link, []), + ok = rabbit_disk_queue:stop_and_obliterate(), + timer:sleep(1000), + Micros. + +rdq_start() -> + {ok, _} = rabbit_disk_queue:start_link(), + ok = rabbit_disk_queue:to_ram_disk_mode(), + ok. + +rdq_stop() -> + rabbit_disk_queue:stop(), + timer:sleep(1000). + +rdq_stop_virgin_start() -> + rdq_stop(), + rdq_virgin(), + rdq_start(). -- cgit v1.2.1 From 242794d407764a53394858ce1dff41e5c2d4b026 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 12:06:02 +0100 Subject: refactoring as per QA remarks --- src/rabbit_memsup.erl | 30 +++++++++++++++++++++++------- src/rabbit_memsup_darwin.erl | 36 +++++++++++------------------------- src/rabbit_memsup_linux.erl | 36 +++++++++++------------------------- 3 files changed, 45 insertions(+), 57 deletions(-) diff --git a/src/rabbit_memsup.erl b/src/rabbit_memsup.erl index 5f242881..b0d57cb2 100644 --- a/src/rabbit_memsup.erl +++ b/src/rabbit_memsup.erl @@ -44,7 +44,8 @@ timeout, timer, mod, - mod_state + mod_state, + alarmed }). -define(SERVER, memsup). %% must be the same as the standard memsup @@ -78,8 +79,9 @@ init([Mod]) -> timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, timer = TRef, mod = Mod, - mod_state = Mod:update(Fraction, InitState) }, - {ok, State}. + mod_state = InitState, + alarmed = false }, + {ok, internal_update(State)}. start_timer(Timeout) -> {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), @@ -108,10 +110,8 @@ handle_call(get_memory_data, _From, handle_call(_Request, _From, State) -> {noreply, State}. -handle_cast(update, State = #state { memory_fraction = MemoryFraction, - mod = Mod, mod_state = ModState }) -> - ModState1 = Mod:update(MemoryFraction, ModState), - {noreply, State #state { mod_state = ModState1 }}; +handle_cast(update, State) -> + {noreply, internal_update(State)}; handle_cast(_Request, State) -> {noreply, State}. @@ -124,3 +124,19 @@ terminate(_Reason, _State) -> code_change(_OldVsn, State, _Extra) -> {ok, State}. + +internal_update(State = #state { memory_fraction = MemoryFraction, + alarmed = Alarmed, + mod = Mod, mod_state = ModState }) -> + ModState1 = Mod:update(ModState), + {MemTotal, MemUsed, _BigProc} = Mod:get_memory_data(ModState1), + NewAlarmed = MemUsed / MemTotal > MemoryFraction, + case {Alarmed, NewAlarmed} of + {false, true} -> + alarm_handler:set_alarm({system_memory_high_watermark, []}); + {true, false} -> + alarm_handler:clear_alarm(system_memory_high_watermark); + _ -> + ok + end, + State #state { mod_state = ModState1, alarmed = NewAlarmed }. diff --git a/src/rabbit_memsup_darwin.erl b/src/rabbit_memsup_darwin.erl index 990c5b99..3de2d843 100644 --- a/src/rabbit_memsup_darwin.erl +++ b/src/rabbit_memsup_darwin.erl @@ -31,23 +31,21 @@ -module(rabbit_memsup_darwin). --export([init/0, update/2, get_memory_data/1]). +-export([init/0, update/1, get_memory_data/1]). --record(state, {alarmed, - total_memory, +-record(state, {total_memory, allocated_memory}). %%---------------------------------------------------------------------------- -ifdef(use_specs). --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), +-type(state() :: #state { total_memory :: ('undefined' | non_neg_integer()), allocated_memory :: ('undefined' | non_neg_integer()) }). -spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). +-spec(update/1 :: (state()) -> state()). -spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), ('undefined' | pid())}). @@ -56,32 +54,20 @@ %%---------------------------------------------------------------------------- init() -> - #state{alarmed = false, - total_memory = undefined, + #state{total_memory = undefined, allocated_memory = undefined}. -update(MemoryFraction, State = #state{ alarmed = Alarmed }) -> +update(State) -> File = os:cmd("/usr/bin/vm_stat"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), - PageSize = dict:fetch(page_size, Dict), - Inactive = dict:fetch('Pages inactive', Dict), - Active = dict:fetch('Pages active', Dict), - Free = dict:fetch('Pages free', Dict), - Wired = dict:fetch('Pages wired down', Dict), + [PageSize, Inactive, Active, Free, Wired] = + [dict:fetch(Key, Dict) || + Key <- [page_size, 'Pages inactive', 'Pages active', 'Pages free', + 'Pages wired down']], MemTotal = PageSize * (Inactive + Active + Free + Wired), MemUsed = PageSize * (Active + Wired), - NewAlarmed = MemUsed / MemTotal > MemoryFraction, - case {Alarmed, NewAlarmed} of - {false, true} -> - alarm_handler:set_alarm({system_memory_high_watermark, []}); - {true, false} -> - alarm_handler:clear_alarm(system_memory_high_watermark); - _ -> - ok - end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. + State#state{total_memory = MemTotal, allocated_memory = MemUsed}. get_memory_data(State) -> {State#state.total_memory, State#state.allocated_memory, undefined}. diff --git a/src/rabbit_memsup_linux.erl b/src/rabbit_memsup_linux.erl index 460fd88f..ca942d7c 100644 --- a/src/rabbit_memsup_linux.erl +++ b/src/rabbit_memsup_linux.erl @@ -31,23 +31,21 @@ -module(rabbit_memsup_linux). --export([init/0, update/2, get_memory_data/1]). +-export([init/0, update/1, get_memory_data/1]). --record(state, {alarmed, - total_memory, +-record(state, {total_memory, allocated_memory}). %%---------------------------------------------------------------------------- -ifdef(use_specs). --type(state() :: #state { alarmed :: boolean(), - total_memory :: ('undefined' | non_neg_integer()), +-type(state() :: #state { total_memory :: ('undefined' | non_neg_integer()), allocated_memory :: ('undefined' | non_neg_integer()) }). -spec(init/0 :: () -> state()). --spec(update/2 :: (float(), state()) -> state()). +-spec(update/1 :: (state()) -> state()). -spec(get_memory_data/1 :: (state()) -> {non_neg_integer(), non_neg_integer(), ('undefined' | pid())}). @@ -56,30 +54,18 @@ %%---------------------------------------------------------------------------- init() -> - #state{alarmed = false, - total_memory = undefined, + #state{total_memory = undefined, allocated_memory = undefined}. -update(MemoryFraction, State = #state { alarmed = Alarmed }) -> +update(State) -> File = read_proc_file("/proc/meminfo"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line/1, Lines)), - MemTotal = dict:fetch('MemTotal', Dict), - MemUsed = MemTotal - - dict:fetch('MemFree', Dict) - - dict:fetch('Buffers', Dict) - - dict:fetch('Cached', Dict), - NewAlarmed = MemUsed / MemTotal > MemoryFraction, - case {Alarmed, NewAlarmed} of - {false, true} -> - alarm_handler:set_alarm({system_memory_high_watermark, []}); - {true, false} -> - alarm_handler:clear_alarm(system_memory_high_watermark); - _ -> - ok - end, - State#state{alarmed = NewAlarmed, - total_memory = MemTotal, allocated_memory = MemUsed}. + [MemTotal, MemFree, Buffers, Cached] = + [dict:fetch(Key, Dict) || + Key <- ['MemTotal', 'MemFree', 'Buffers', 'Cached']], + MemUsed = MemTotal - MemFree - Buffers - Cached, + State#state{total_memory = MemTotal, allocated_memory = MemUsed}. get_memory_data(State) -> {State#state.total_memory, State#state.allocated_memory, undefined}. -- cgit v1.2.1 From f46a3ec33a09bdfc796417ccfeb1f7b66d02c2c5 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 12:35:33 +0100 Subject: removed keygets as it wasn't being used. Added test for unfold. --- src/rabbit_misc.erl | 19 +------------------ src/rabbit_tests.erl | 9 +++++++++ 2 files changed, 10 insertions(+), 18 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index c328c111..1506bb9f 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -53,7 +53,7 @@ -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, keygets/2]). +-export([unfold/2, ceil/1]). -import(mnesia). -import(lists). @@ -119,8 +119,6 @@ -spec(stop_applications/1 :: ([atom()]) -> 'ok'). -spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). -spec(ceil/1 :: (number()) -> number()). --spec(keygets/2 :: ([({K, V} | {K, non_neg_integer(), V})], [any()]) -> - [({K, V} | any())]). -endif. @@ -465,18 +463,3 @@ ceil(N) -> 0 -> N; _ -> 1 + T end. - -keygets(Keys, KeyList) -> - lists:reverse( - lists:foldl( - fun({Key, Pos, Default}, Acc) -> - case lists:keysearch(Key, Pos, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end; - ({Key, Default}, Acc) -> - case lists:keysearch(Key, 1, KeyList) of - false -> [{Key, Default} | Acc]; - {value, T} -> [T | Acc] - end - end, [], Keys)). diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index e5100ccd..e9a2b812 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -49,6 +49,7 @@ test_content_prop_roundtrip(Datum, Binary) -> all_tests() -> passed = test_priority_queue(), + passed = test_unfold(), passed = test_parsing(), passed = test_topic_matching(), passed = test_log_management(), @@ -116,6 +117,14 @@ test_simple_n_element_queue(N) -> {true, false, N, ToListRes, Items} = test_priority_queue(Q), passed. +test_unfold() -> + {[], test} = rabbit_misc:unfold(fun (V) -> false end, test), + List = lists:seq(2,20,2), + {List, 0} = rabbit_misc:unfold(fun (0) -> false; + (N) -> {true, N*2, N-1} + end, 10), + passed. + test_parsing() -> passed = test_content_properties(), passed. -- cgit v1.2.1 From 136e03ff274e975b36d9ed5dad4e0d72a20803a7 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 14:26:56 +0100 Subject: refactoring as requested. Also remembered that I'd changed the clustering tests, so brought those into this branch too. --- src/rabbit_mnesia.erl | 22 ++++++++++------------ src/rabbit_tests.erl | 37 ++++++++++++++++++------------------- 2 files changed, 28 insertions(+), 31 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index a4b51a20..e90ef923 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -356,18 +356,16 @@ create_local_non_replicated_table_copies(Type) -> create_local_table_copies(Type, TableDefinitions) -> lists:foreach( fun({Tab, TabDef}) -> - HasDiscCopies = - case lists:keysearch(disc_copies, 1, TabDef) of - false -> false; - {value, {disc_copies, List1}} -> - lists:member(node(), List1) - end, - HasDiscOnlyCopies = - case lists:keysearch(disc_only_copies, 1, TabDef) of - false -> false; - {value, {disc_only_copies, List2}} -> - lists:member(node(), List2) - end, + Fun = fun(DiscType) -> + case lists:keysearch(DiscType, 1, TabDef) of + false -> + false; + {value, {DiscType, List}} -> + lists:member(node(), List) + end + end, + HasDiscCopies = Fun(disc_copies), + HasDiscOnlyCopies = Fun(disc_only_copies), StorageType = case Type of disc -> diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index e5100ccd..4f207fbb 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -408,19 +408,17 @@ test_cluster_management() -> end, ClusteringSequence), - %% attempt to convert a disk node into a ram node + %% convert a disk node into a ram node ok = control_action(reset, []), ok = control_action(start_app, []), ok = control_action(stop_app, []), - {error, {cannot_convert_disk_node_to_ram_node, _}} = - control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + ok = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), - %% attempt to join a non-existing cluster as a ram node + %% join a non-existing cluster as a ram node ok = control_action(reset, []), - {error, {unable_to_contact_cluster_nodes, _}} = - control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + ok = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), SecondaryNode = rabbit_misc:localnode(hare), case net_adm:ping(SecondaryNode) of @@ -436,11 +434,12 @@ test_cluster_management2(SecondaryNode) -> NodeS = atom_to_list(node()), SecondaryNodeS = atom_to_list(SecondaryNode), - %% attempt to convert a disk node into a ram node + %% make a disk node ok = control_action(reset, []), ok = control_action(cluster, [NodeS]), - {error, {unable_to_join_cluster, _, _}} = - control_action(cluster, [SecondaryNodeS]), + %% make a ram node + ok = control_action(reset, []), + ok = control_action(cluster, [SecondaryNodeS]), %% join cluster as a ram node ok = control_action(reset, []), @@ -453,21 +452,21 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% attempt to join non-existing cluster as a ram node - {error, _} = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), - + %% join non-existing cluster as a ram node + ok = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn ram node into disk node + ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS, NodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% attempt to convert a disk node into a ram node - {error, {cannot_convert_disk_node_to_ram_node, _}} = - control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), + %% convert a disk node into a ram node + ok = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% turn a disk node into a ram node + ok = control_action(reset, []), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), -- cgit v1.2.1 From 42969c4f281d77f00e9fe30c53c7819de75f5c1d Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 14:41:25 +0100 Subject: made guid work with old persister --- src/rabbit_guid.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl index 3aa2989a..f669b9dc 100644 --- a/src/rabbit_guid.erl +++ b/src/rabbit_guid.erl @@ -69,7 +69,7 @@ update_disk_serial() -> {ok, Content} -> binary_to_term(Content); {error, _} -> - 0 + rabbit_persister:serial() end, ok = file:write_file(Filename, term_to_binary(Serial + 1)), Serial. -- cgit v1.2.1 From 5c060b11741fbe7e5451df396e528df91526a222 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 15:42:10 +0100 Subject: Actually tested pinning in a clustered configuration. The old code was wrong and would clearly not work correctly. Corrected. Now bounce the pin request through the queue process which makes sure we end up on the right node and thus to the right queue_mode_manager --- src/rabbit_amqqueue.erl | 8 ++------ src/rabbit_amqqueue_process.erl | 7 +++++++ 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 62ea465d..eb5a47ad 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -228,12 +228,8 @@ map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). set_mode_pin(VHostPath, Queue, Disk) when is_binary(VHostPath) andalso is_binary(Queue) -> with(rabbit_misc:r(VHostPath, queue, Queue), - fun(Q) -> case Disk of - true -> rabbit_queue_mode_manager:pin_to_disk - (Q #amqqueue.pid); - false -> rabbit_queue_mode_manager:unpin_from_disk - (Q #amqqueue.pid) - end + fun(Q) -> + gen_server2:pcast(Q #amqqueue.pid, 10, {set_mode_pin, Disk}) end). set_mode(QPid, Mode) -> diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 14a0370d..f3b9f4bf 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -835,6 +835,13 @@ handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> end)(PendingMessages, MS), noreply(State #q { mixed_state = MS1 }); +handle_cast({set_mode_pin, Disk}, State) -> + case Disk of + true -> rabbit_queue_mode_manager:pin_to_disk(self()); + false -> rabbit_queue_mode_manager:unpin_from_disk(self()) + end, + noreply(State); + handle_cast(report_memory, State) -> %% deliberately don't call noreply/2 as we don't want to restart the timer %% by unsetting the timer, we force a report on the next normal message -- cgit v1.2.1 From cbd75aabafed1a1c2d34a83423f8c666879e69b2 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 16:11:16 +0100 Subject: Made the pin to disk bit persistent --- include/rabbit.hrl | 2 +- src/rabbit_amqqueue.erl | 4 ++++ src/rabbit_amqqueue_process.erl | 6 +++++- src/rabbit_mixed_queue.erl | 8 ++++---- 4 files changed, 14 insertions(+), 6 deletions(-) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 0ba31cb5..56c67c4a 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -51,7 +51,7 @@ -record(exchange, {name, type, durable, auto_delete, arguments}). --record(amqqueue, {name, durable, auto_delete, arguments, pid}). +-record(amqqueue, {name, durable, auto_delete, arguments, pid, pinned = false}). %% mnesia doesn't like unary records, so we add a dummy 'value' field -record(route, {binding, value = const}). diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index eb5a47ad..c7e416d2 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -229,6 +229,10 @@ set_mode_pin(VHostPath, Queue, Disk) when is_binary(VHostPath) andalso is_binary(Queue) -> with(rabbit_misc:r(VHostPath, queue, Queue), fun(Q) -> + rabbit_misc:execute_mnesia_transaction( + fun () -> + ok = store_queue(Q#amqqueue{pinned = Disk}) + end), gen_server2:pcast(Q #amqqueue.pid, 10, {set_mode_pin, Disk}) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index f3b9f4bf..6402ddd3 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -99,10 +99,14 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable }) -> +init(Q = #amqqueue { name = QName, durable = Durable, pinned = Pinned }) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), ok = rabbit_queue_mode_manager:register (self(), false, rabbit_amqqueue, set_mode, [self()]), + ok = case Pinned of + true -> rabbit_queue_mode_manager:pin_to_disk(self()); + false -> ok + end, {ok, MS} = rabbit_mixed_queue:init(QName, Durable), State = #q{q = Q, owner = none, diff --git a/src/rabbit_mixed_queue.erl b/src/rabbit_mixed_queue.erl index 4b0810a8..3d989662 100644 --- a/src/rabbit_mixed_queue.erl +++ b/src/rabbit_mixed_queue.erl @@ -62,7 +62,7 @@ -type(mqstate() :: #mqstate { mode :: mode(), msg_buf :: queue(), queue :: queue_name(), - is_durable :: bool(), + is_durable :: boolean(), length :: non_neg_integer(), memory_size :: (non_neg_integer() | 'undefined'), memory_gain :: (non_neg_integer() | 'undefined'), @@ -72,12 +72,12 @@ -type(acktag() :: ( 'noack' | { non_neg_integer(), non_neg_integer() })). -type(okmqs() :: {'ok', mqstate()}). --spec(init/2 :: (queue_name(), bool()) -> okmqs()). +-spec(init/2 :: (queue_name(), boolean()) -> okmqs()). -spec(publish/2 :: (message(), mqstate()) -> okmqs()). -spec(publish_delivered/2 :: (message(), mqstate()) -> {'ok', acktag(), mqstate()}). -spec(deliver/1 :: (mqstate()) -> - {('empty' | {message(), bool(), acktag(), non_neg_integer()}), + {('empty' | {message(), boolean(), acktag(), non_neg_integer()}), mqstate()}). -spec(ack/2 :: ([{message(), acktag()}], mqstate()) -> okmqs()). -spec(tx_publish/2 :: (message(), mqstate()) -> okmqs()). @@ -89,7 +89,7 @@ -spec(delete_queue/1 :: (mqstate()) -> {'ok', mqstate()}). -spec(length/1 :: (mqstate()) -> non_neg_integer()). --spec(is_empty/1 :: (mqstate()) -> bool()). +-spec(is_empty/1 :: (mqstate()) -> boolean()). -spec(to_disk_only_mode/2 :: ([message()], mqstate()) -> okmqs()). -spec(to_mixed_mode/2 :: ([message()], mqstate()) -> okmqs()). -- cgit v1.2.1 From 9b7f67909fbc89921d3b1962651361ceece9220f Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 17:19:30 +0100 Subject: hacked out all queue pinning stuff --- include/rabbit.hrl | 2 +- src/rabbit_amqqueue.erl | 14 +----------- src/rabbit_amqqueue_process.erl | 13 +---------- src/rabbit_control.erl | 19 ---------------- src/rabbit_queue_mode_manager.erl | 46 ++------------------------------------- 5 files changed, 5 insertions(+), 89 deletions(-) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 56c67c4a..0ba31cb5 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -51,7 +51,7 @@ -record(exchange, {name, type, durable, auto_delete, arguments}). --record(amqqueue, {name, durable, auto_delete, arguments, pid, pinned = false}). +-record(amqqueue, {name, durable, auto_delete, arguments, pid}). %% mnesia doesn't like unary records, so we add a dummy 'value' field -record(route, {binding, value = const}). diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index c7e416d2..fdf73729 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,7 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/3, set_mode/2, report_memory/1]). +-export([set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -102,7 +102,6 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). -spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). @@ -225,17 +224,6 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). -set_mode_pin(VHostPath, Queue, Disk) - when is_binary(VHostPath) andalso is_binary(Queue) -> - with(rabbit_misc:r(VHostPath, queue, Queue), - fun(Q) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - ok = store_queue(Q#amqqueue{pinned = Disk}) - end), - gen_server2:pcast(Q #amqqueue.pid, 10, {set_mode_pin, Disk}) - end). - set_mode(QPid, Mode) -> gen_server2:pcast(QPid, 10, {set_mode, Mode}). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 6402ddd3..14a0370d 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -99,14 +99,10 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable, pinned = Pinned }) -> +init(Q = #amqqueue { name = QName, durable = Durable }) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), ok = rabbit_queue_mode_manager:register (self(), false, rabbit_amqqueue, set_mode, [self()]), - ok = case Pinned of - true -> rabbit_queue_mode_manager:pin_to_disk(self()); - false -> ok - end, {ok, MS} = rabbit_mixed_queue:init(QName, Durable), State = #q{q = Q, owner = none, @@ -839,13 +835,6 @@ handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> end)(PendingMessages, MS), noreply(State #q { mixed_state = MS1 }); -handle_cast({set_mode_pin, Disk}, State) -> - case Disk of - true -> rabbit_queue_mode_manager:pin_to_disk(self()); - false -> rabbit_queue_mode_manager:unpin_from_disk(self()) - end, - noreply(State); - handle_cast(report_memory, State) -> %% deliberately don't call noreply/2 as we don't want to restart the timer %% by unsetting the timer, we force a report on the next normal message diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 99bbb742..d5a83ac9 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,9 +137,6 @@ Available commands: list_bindings [-p ] list_connections [ ...] - pin_queue_to_disk - unpin_queue_from_disk - Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -168,10 +165,6 @@ exchange name, routing key, queue name and arguments, in that order. peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. - -pin_queue_to_disk will force a queue to be in disk mode. -unpin_queue_from_disk will permit a queue that has been pinned to disk mode -to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -286,18 +279,6 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). -action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> - Inform("Pinning queue ~p in vhost ~p to disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), true]); - -action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> - Inform("Unpinning queue ~p in vhost ~p from disk", - [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), false]); - action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl index 5a6c8b39..a2fab615 100644 --- a/src/rabbit_queue_mode_manager.erl +++ b/src/rabbit_queue_mode_manager.erl @@ -39,7 +39,7 @@ terminate/2, code_change/3]). -export([register/5, report_memory/3, report_memory/5, info/0, - pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). + conserve_memory/2]). -define(TOTAL_TOKENS, 10000000). -define(ACTIVITY_THRESHOLD, 25). @@ -56,8 +56,6 @@ (non_neg_integer() | 'undefined'), (non_neg_integer() | 'undefined'), bool()) -> 'ok'). --spec(pin_to_disk/1 :: (pid()) -> 'ok'). --spec(unpin_from_disk/1 :: (pid()) -> 'ok'). -spec(info/0 :: () -> [{atom(), any()}]). -spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). @@ -69,7 +67,6 @@ tokens_per_byte, lowrate, hibernate, - disk_mode_pins, unevictable, alarmed }). @@ -158,12 +155,6 @@ register(Pid, Unevictable, Module, Function, Args) -> gen_server2:cast(?SERVER, {register, Pid, Unevictable, Module, Function, Args}). -pin_to_disk(Pid) -> - gen_server2:call(?SERVER, {pin_to_disk, Pid}). - -unpin_from_disk(Pid) -> - gen_server2:call(?SERVER, {unpin_from_disk, Pid}). - report_memory(Pid, Memory, Hibernating) -> report_memory(Pid, Memory, undefined, undefined, Hibernating). @@ -191,53 +182,21 @@ init([]) -> tokens_per_byte = TPB, lowrate = priority_queue:new(), hibernate = queue:new(), - disk_mode_pins = sets:new(), unevictable = sets:new(), alarmed = false }}. -handle_call({pin_to_disk, Pid}, _From, - State = #state { mixed_queues = Mixed, - callbacks = Callbacks, - available_tokens = Avail, - disk_mode_pins = Pins }) -> - {Res, State1} = - case sets:is_element(Pid, Pins) of - true -> {ok, State}; - false -> - case find_queue(Pid, Mixed) of - {mixed, {OAlloc, _OActivity}} -> - ok = set_queue_mode(Callbacks, Pid, disk), - {ok, State #state { mixed_queues = - dict:erase(Pid, Mixed), - available_tokens = Avail + OAlloc, - disk_mode_pins = - sets:add_element(Pid, Pins) - }}; - disk -> - {ok, State #state { disk_mode_pins = - sets:add_element(Pid, Pins) }} - end - end, - {reply, Res, State1}; - -handle_call({unpin_from_disk, Pid}, _From, - State = #state { disk_mode_pins = Pins }) -> - {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; - handle_call(info, _From, State) -> State1 = #state { available_tokens = Avail, mixed_queues = Mixed, lowrate = Lazy, hibernate = Sleepy, - disk_mode_pins = Pins, unevictable = Unevictable } = free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying {reply, [{ available_tokens, Avail }, { mixed_queues, dict:to_list(Mixed) }, { lowrate_queues, priority_queue:to_list(Lazy) }, { hibernated_queues, queue:to_list(Sleepy) }, - { queues_pinned_to_disk, sets:to_list(Pins) }, { unevictable_queues, sets:to_list(Unevictable) }], State1}. @@ -245,7 +204,6 @@ handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, State = #state { mixed_queues = Mixed, available_tokens = Avail, callbacks = Callbacks, - disk_mode_pins = Pins, tokens_per_byte = TPB, alarmed = Alarmed }) -> Req = rabbit_misc:ceil(TPB * Memory), @@ -280,7 +238,7 @@ handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, MixedActivity} end; disk -> - case sets:is_element(Pid, Pins) orelse Alarmed of + case Alarmed of true -> {State, disk}; false -> -- cgit v1.2.1 From 2717261db5b73853d8059748cd506c4bc4aa285f Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 18 Aug 2009 17:22:38 +0100 Subject: persistent pinning of queues --- include/rabbit.hrl | 2 +- src/rabbit_amqqueue.erl | 14 +++++++++++- src/rabbit_amqqueue_process.erl | 13 ++++++++++- src/rabbit_control.erl | 19 ++++++++++++++++ src/rabbit_queue_mode_manager.erl | 46 +++++++++++++++++++++++++++++++++++++-- 5 files changed, 89 insertions(+), 5 deletions(-) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 0ba31cb5..56c67c4a 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -51,7 +51,7 @@ -record(exchange, {name, type, durable, auto_delete, arguments}). --record(amqqueue, {name, durable, auto_delete, arguments, pid}). +-record(amqqueue, {name, durable, auto_delete, arguments, pid, pinned = false}). %% mnesia doesn't like unary records, so we add a dummy 'value' field -record(route, {binding, value = const}). diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index fdf73729..c7e416d2 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,7 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode/2, report_memory/1]). +-export([set_mode_pin/3, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -102,6 +102,7 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). +-spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). -spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). @@ -224,6 +225,17 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). +set_mode_pin(VHostPath, Queue, Disk) + when is_binary(VHostPath) andalso is_binary(Queue) -> + with(rabbit_misc:r(VHostPath, queue, Queue), + fun(Q) -> + rabbit_misc:execute_mnesia_transaction( + fun () -> + ok = store_queue(Q#amqqueue{pinned = Disk}) + end), + gen_server2:pcast(Q #amqqueue.pid, 10, {set_mode_pin, Disk}) + end). + set_mode(QPid, Mode) -> gen_server2:pcast(QPid, 10, {set_mode, Mode}). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 14a0370d..6402ddd3 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -99,10 +99,14 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable }) -> +init(Q = #amqqueue { name = QName, durable = Durable, pinned = Pinned }) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), ok = rabbit_queue_mode_manager:register (self(), false, rabbit_amqqueue, set_mode, [self()]), + ok = case Pinned of + true -> rabbit_queue_mode_manager:pin_to_disk(self()); + false -> ok + end, {ok, MS} = rabbit_mixed_queue:init(QName, Durable), State = #q{q = Q, owner = none, @@ -835,6 +839,13 @@ handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> end)(PendingMessages, MS), noreply(State #q { mixed_state = MS1 }); +handle_cast({set_mode_pin, Disk}, State) -> + case Disk of + true -> rabbit_queue_mode_manager:pin_to_disk(self()); + false -> rabbit_queue_mode_manager:unpin_from_disk(self()) + end, + noreply(State); + handle_cast(report_memory, State) -> %% deliberately don't call noreply/2 as we don't want to restart the timer %% by unsetting the timer, we force a report on the next normal message diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index d5a83ac9..99bbb742 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,6 +137,9 @@ Available commands: list_bindings [-p ] list_connections [ ...] + pin_queue_to_disk + unpin_queue_from_disk + Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -165,6 +168,10 @@ exchange name, routing key, queue name and arguments, in that order. peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. + +pin_queue_to_disk will force a queue to be in disk mode. +unpin_queue_from_disk will permit a queue that has been pinned to disk mode +to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -279,6 +286,18 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). +action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> + Inform("Pinning queue ~p in vhost ~p to disk", + [Queue, VHost]), + rpc_call(Node, rabbit_amqqueue, set_mode_pin, + [list_to_binary(VHost), list_to_binary(Queue), true]); + +action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> + Inform("Unpinning queue ~p in vhost ~p from disk", + [Queue, VHost]), + rpc_call(Node, rabbit_amqqueue, set_mode_pin, + [list_to_binary(VHost), list_to_binary(Queue), false]); + action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl index a2fab615..5a6c8b39 100644 --- a/src/rabbit_queue_mode_manager.erl +++ b/src/rabbit_queue_mode_manager.erl @@ -39,7 +39,7 @@ terminate/2, code_change/3]). -export([register/5, report_memory/3, report_memory/5, info/0, - conserve_memory/2]). + pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). -define(TOTAL_TOKENS, 10000000). -define(ACTIVITY_THRESHOLD, 25). @@ -56,6 +56,8 @@ (non_neg_integer() | 'undefined'), (non_neg_integer() | 'undefined'), bool()) -> 'ok'). +-spec(pin_to_disk/1 :: (pid()) -> 'ok'). +-spec(unpin_from_disk/1 :: (pid()) -> 'ok'). -spec(info/0 :: () -> [{atom(), any()}]). -spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). @@ -67,6 +69,7 @@ tokens_per_byte, lowrate, hibernate, + disk_mode_pins, unevictable, alarmed }). @@ -155,6 +158,12 @@ register(Pid, Unevictable, Module, Function, Args) -> gen_server2:cast(?SERVER, {register, Pid, Unevictable, Module, Function, Args}). +pin_to_disk(Pid) -> + gen_server2:call(?SERVER, {pin_to_disk, Pid}). + +unpin_from_disk(Pid) -> + gen_server2:call(?SERVER, {unpin_from_disk, Pid}). + report_memory(Pid, Memory, Hibernating) -> report_memory(Pid, Memory, undefined, undefined, Hibernating). @@ -182,21 +191,53 @@ init([]) -> tokens_per_byte = TPB, lowrate = priority_queue:new(), hibernate = queue:new(), + disk_mode_pins = sets:new(), unevictable = sets:new(), alarmed = false }}. +handle_call({pin_to_disk, Pid}, _From, + State = #state { mixed_queues = Mixed, + callbacks = Callbacks, + available_tokens = Avail, + disk_mode_pins = Pins }) -> + {Res, State1} = + case sets:is_element(Pid, Pins) of + true -> {ok, State}; + false -> + case find_queue(Pid, Mixed) of + {mixed, {OAlloc, _OActivity}} -> + ok = set_queue_mode(Callbacks, Pid, disk), + {ok, State #state { mixed_queues = + dict:erase(Pid, Mixed), + available_tokens = Avail + OAlloc, + disk_mode_pins = + sets:add_element(Pid, Pins) + }}; + disk -> + {ok, State #state { disk_mode_pins = + sets:add_element(Pid, Pins) }} + end + end, + {reply, Res, State1}; + +handle_call({unpin_from_disk, Pid}, _From, + State = #state { disk_mode_pins = Pins }) -> + {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; + handle_call(info, _From, State) -> State1 = #state { available_tokens = Avail, mixed_queues = Mixed, lowrate = Lazy, hibernate = Sleepy, + disk_mode_pins = Pins, unevictable = Unevictable } = free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying {reply, [{ available_tokens, Avail }, { mixed_queues, dict:to_list(Mixed) }, { lowrate_queues, priority_queue:to_list(Lazy) }, { hibernated_queues, queue:to_list(Sleepy) }, + { queues_pinned_to_disk, sets:to_list(Pins) }, { unevictable_queues, sets:to_list(Unevictable) }], State1}. @@ -204,6 +245,7 @@ handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, State = #state { mixed_queues = Mixed, available_tokens = Avail, callbacks = Callbacks, + disk_mode_pins = Pins, tokens_per_byte = TPB, alarmed = Alarmed }) -> Req = rabbit_misc:ceil(TPB * Memory), @@ -238,7 +280,7 @@ handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, MixedActivity} end; disk -> - case Alarmed of + case sets:is_element(Pid, Pins) orelse Alarmed of true -> {State, disk}; false -> -- cgit v1.2.1 From b182119b38fd0731c6196b0efcd919b3ffe28f65 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Wed, 19 Aug 2009 00:29:07 +0100 Subject: revert unrelated cosmetic change --- src/rabbit_misc.erl | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 1506bb9f..8efd09b9 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -363,8 +363,7 @@ dirty_foreach_key1(F, TableName, K) -> end. dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, - {file, FileName}]), + {ok, LH} = disk_log:open([{name, dirty_dump_log}, {mode, read_only}, {file, FileName}]), dirty_dump_log1(LH, disk_log:chunk(LH, start)), disk_log:close(LH). -- cgit v1.2.1 From 5a572e11d6f69873455a632916590c2e0dc306cb Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 19 Aug 2009 10:48:22 +0100 Subject: dropping priorities --- src/rabbit_amqqueue.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 01b1f088..f05f7880 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -303,10 +303,10 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> infinity). notify_sent(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {notify_sent, ChPid}). + gen_server2:pcast(QPid, 8, {notify_sent, ChPid}). unblock(QPid, ChPid) -> - gen_server2:pcast(QPid, 10, {unblock, ChPid}). + gen_server2:pcast(QPid, 8, {unblock, ChPid}). internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( -- cgit v1.2.1 From b9b31b572f18573809d4740db490cf98634d1a60 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 19 Aug 2009 12:22:16 +0100 Subject: New branch for 21444 --- include/rabbit.hrl | 2 +- src/rabbit_amqqueue.erl | 14 +++++++++++- src/rabbit_amqqueue_process.erl | 13 ++++++++++- src/rabbit_control.erl | 19 ++++++++++++++++ src/rabbit_queue_mode_manager.erl | 46 +++++++++++++++++++++++++++++++++++++-- 5 files changed, 89 insertions(+), 5 deletions(-) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 0ba31cb5..56c67c4a 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -51,7 +51,7 @@ -record(exchange, {name, type, durable, auto_delete, arguments}). --record(amqqueue, {name, durable, auto_delete, arguments, pid}). +-record(amqqueue, {name, durable, auto_delete, arguments, pid, pinned = false}). %% mnesia doesn't like unary records, so we add a dummy 'value' field -record(route, {binding, value = const}). diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 1d9f8c53..ceb57441 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,7 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode/2, report_memory/1]). +-export([set_mode_pin/3, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -102,6 +102,7 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). +-spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). -spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). @@ -224,6 +225,17 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). +set_mode_pin(VHostPath, Queue, Disk) + when is_binary(VHostPath) andalso is_binary(Queue) -> + with(rabbit_misc:r(VHostPath, queue, Queue), + fun(Q) -> + rabbit_misc:execute_mnesia_transaction( + fun () -> + ok = store_queue(Q#amqqueue{pinned = Disk}) + end), + gen_server2:pcast(Q #amqqueue.pid, 10, {set_mode_pin, Disk}) + end). + set_mode(QPid, Mode) -> gen_server2:pcast(QPid, 10, {set_mode, Mode}). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 14a0370d..6402ddd3 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -99,10 +99,14 @@ start_link(Q) -> %%---------------------------------------------------------------------------- -init(Q = #amqqueue { name = QName, durable = Durable }) -> +init(Q = #amqqueue { name = QName, durable = Durable, pinned = Pinned }) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), ok = rabbit_queue_mode_manager:register (self(), false, rabbit_amqqueue, set_mode, [self()]), + ok = case Pinned of + true -> rabbit_queue_mode_manager:pin_to_disk(self()); + false -> ok + end, {ok, MS} = rabbit_mixed_queue:init(QName, Durable), State = #q{q = Q, owner = none, @@ -835,6 +839,13 @@ handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> end)(PendingMessages, MS), noreply(State #q { mixed_state = MS1 }); +handle_cast({set_mode_pin, Disk}, State) -> + case Disk of + true -> rabbit_queue_mode_manager:pin_to_disk(self()); + false -> rabbit_queue_mode_manager:unpin_from_disk(self()) + end, + noreply(State); + handle_cast(report_memory, State) -> %% deliberately don't call noreply/2 as we don't want to restart the timer %% by unsetting the timer, we force a report on the next normal message diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index d5a83ac9..99bbb742 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,6 +137,9 @@ Available commands: list_bindings [-p ] list_connections [ ...] + pin_queue_to_disk + unpin_queue_from_disk + Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. @@ -165,6 +168,10 @@ exchange name, routing key, queue name and arguments, in that order. peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display user, peer_address and peer_port. + +pin_queue_to_disk will force a queue to be in disk mode. +unpin_queue_from_disk will permit a queue that has been pinned to disk mode +to be converted to mixed mode should there be enough memory available. "), halt(1). @@ -279,6 +286,18 @@ action(Command, Node, Args, Inform) -> {VHost, RemainingArgs} = parse_vhost_flag(Args), action(Command, Node, VHost, RemainingArgs, Inform). +action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> + Inform("Pinning queue ~p in vhost ~p to disk", + [Queue, VHost]), + rpc_call(Node, rabbit_amqqueue, set_mode_pin, + [list_to_binary(VHost), list_to_binary(Queue), true]); + +action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> + Inform("Unpinning queue ~p in vhost ~p from disk", + [Queue, VHost]), + rpc_call(Node, rabbit_amqqueue, set_mode_pin, + [list_to_binary(VHost), list_to_binary(Queue), false]); + action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl index a2fab615..5a6c8b39 100644 --- a/src/rabbit_queue_mode_manager.erl +++ b/src/rabbit_queue_mode_manager.erl @@ -39,7 +39,7 @@ terminate/2, code_change/3]). -export([register/5, report_memory/3, report_memory/5, info/0, - conserve_memory/2]). + pin_to_disk/1, unpin_from_disk/1, conserve_memory/2]). -define(TOTAL_TOKENS, 10000000). -define(ACTIVITY_THRESHOLD, 25). @@ -56,6 +56,8 @@ (non_neg_integer() | 'undefined'), (non_neg_integer() | 'undefined'), bool()) -> 'ok'). +-spec(pin_to_disk/1 :: (pid()) -> 'ok'). +-spec(unpin_from_disk/1 :: (pid()) -> 'ok'). -spec(info/0 :: () -> [{atom(), any()}]). -spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). @@ -67,6 +69,7 @@ tokens_per_byte, lowrate, hibernate, + disk_mode_pins, unevictable, alarmed }). @@ -155,6 +158,12 @@ register(Pid, Unevictable, Module, Function, Args) -> gen_server2:cast(?SERVER, {register, Pid, Unevictable, Module, Function, Args}). +pin_to_disk(Pid) -> + gen_server2:call(?SERVER, {pin_to_disk, Pid}). + +unpin_from_disk(Pid) -> + gen_server2:call(?SERVER, {unpin_from_disk, Pid}). + report_memory(Pid, Memory, Hibernating) -> report_memory(Pid, Memory, undefined, undefined, Hibernating). @@ -182,21 +191,53 @@ init([]) -> tokens_per_byte = TPB, lowrate = priority_queue:new(), hibernate = queue:new(), + disk_mode_pins = sets:new(), unevictable = sets:new(), alarmed = false }}. +handle_call({pin_to_disk, Pid}, _From, + State = #state { mixed_queues = Mixed, + callbacks = Callbacks, + available_tokens = Avail, + disk_mode_pins = Pins }) -> + {Res, State1} = + case sets:is_element(Pid, Pins) of + true -> {ok, State}; + false -> + case find_queue(Pid, Mixed) of + {mixed, {OAlloc, _OActivity}} -> + ok = set_queue_mode(Callbacks, Pid, disk), + {ok, State #state { mixed_queues = + dict:erase(Pid, Mixed), + available_tokens = Avail + OAlloc, + disk_mode_pins = + sets:add_element(Pid, Pins) + }}; + disk -> + {ok, State #state { disk_mode_pins = + sets:add_element(Pid, Pins) }} + end + end, + {reply, Res, State1}; + +handle_call({unpin_from_disk, Pid}, _From, + State = #state { disk_mode_pins = Pins }) -> + {reply, ok, State #state { disk_mode_pins = sets:del_element(Pid, Pins) }}; + handle_call(info, _From, State) -> State1 = #state { available_tokens = Avail, mixed_queues = Mixed, lowrate = Lazy, hibernate = Sleepy, + disk_mode_pins = Pins, unevictable = Unevictable } = free_upto(undef, 1 + ?TOTAL_TOKENS, State), %% this'll just do tidying {reply, [{ available_tokens, Avail }, { mixed_queues, dict:to_list(Mixed) }, { lowrate_queues, priority_queue:to_list(Lazy) }, { hibernated_queues, queue:to_list(Sleepy) }, + { queues_pinned_to_disk, sets:to_list(Pins) }, { unevictable_queues, sets:to_list(Unevictable) }], State1}. @@ -204,6 +245,7 @@ handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, State = #state { mixed_queues = Mixed, available_tokens = Avail, callbacks = Callbacks, + disk_mode_pins = Pins, tokens_per_byte = TPB, alarmed = Alarmed }) -> Req = rabbit_misc:ceil(TPB * Memory), @@ -238,7 +280,7 @@ handle_cast({report_memory, Pid, Memory, BytesGained, BytesLost, Hibernating}, MixedActivity} end; disk -> - case Alarmed of + case sets:is_element(Pid, Pins) orelse Alarmed of true -> {State, disk}; false -> -- cgit v1.2.1 From bad6bbe1397b3be4f2a479ae2073add7ec71680e Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 19 Aug 2009 15:32:06 +0100 Subject: As per QA notes. --- src/rabbit_amqqueue.erl | 18 ++++++------------ src/rabbit_amqqueue_process.erl | 8 +++++--- src/rabbit_control.erl | 23 ++++++++++++++--------- src/rabbit_queue_mode_manager.erl | 20 +++++++++----------- 4 files changed, 34 insertions(+), 35 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index ceb57441..74303ecc 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,7 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/3, set_mode/2, report_memory/1]). +-export([set_mode_pin/2, set_mode/2, report_memory/1]). -import(mnesia). -import(gen_server2). @@ -102,7 +102,7 @@ -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(set_mode_pin/3 :: (vhost(), resource_name(), ('disk'|'mixed')) -> any()). +-spec(set_mode_pin/2 :: (amqqueue(), boolean()) -> any()). -spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). @@ -225,16 +225,10 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). -set_mode_pin(VHostPath, Queue, Disk) - when is_binary(VHostPath) andalso is_binary(Queue) -> - with(rabbit_misc:r(VHostPath, queue, Queue), - fun(Q) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - ok = store_queue(Q#amqqueue{pinned = Disk}) - end), - gen_server2:pcast(Q #amqqueue.pid, 10, {set_mode_pin, Disk}) - end). +set_mode_pin(Q, Disk) -> + rabbit_misc:execute_mnesia_transaction( + fun () -> ok = store_queue(Q#amqqueue{pinned = Disk}) end), + gen_server2:pcast(Q#amqqueue.pid, 10, {set_mode_pin, Disk}). set_mode(QPid, Mode) -> gen_server2:pcast(QPid, 10, {set_mode, Mode}). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 6402ddd3..729bf9da 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -89,7 +89,8 @@ consumers, transactions, memory, - mode + mode, + pinned ]). %%---------------------------------------------------------------------------- @@ -530,6 +531,7 @@ i(name, #q{q = #amqqueue{name = Name}}) -> Name; i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; +i(pinned, #q{q = #amqqueue{pinned = Pinned}}) -> Pinned; i(mode, #q{ mixed_state = MS }) -> rabbit_mixed_queue:info(MS); i(pid, _) -> @@ -839,12 +841,12 @@ handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> end)(PendingMessages, MS), noreply(State #q { mixed_state = MS1 }); -handle_cast({set_mode_pin, Disk}, State) -> +handle_cast({set_mode_pin, Disk}, State = #q { q = Q }) -> case Disk of true -> rabbit_queue_mode_manager:pin_to_disk(self()); false -> rabbit_queue_mode_manager:unpin_from_disk(self()) end, - noreply(State); + noreply(State #q { q = Q #amqqueue { pinned = Disk } }); handle_cast(report_memory, State) -> %% deliberately don't call noreply/2 as we don't want to restart the timer diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 99bbb742..5cef0d80 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -153,10 +153,10 @@ some non-default value at broker startup time). The output of hostname The list_queues, list_exchanges and list_bindings commands accept an optional virtual host parameter for which to display results. The default value is \"/\". - must be a member of the list [name, durable, auto_delete, -arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, -messages, acks_uncommitted, consumers, transactions, memory, mode]. The default -is to display name and (number of) messages. + must be a member of the list [name, durable, auto_delete, +arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, +messages, acks_uncommitted, consumers, transactions, memory, mode, pinned]. The +default is to display name and (number of) messages. must be a member of the list [name, type, durable, auto_delete, arguments]. The default is to display name and type. @@ -289,15 +289,13 @@ action(Command, Node, Args, Inform) -> action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> Inform("Pinning queue ~p in vhost ~p to disk", [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), true]); + set_queue_mode_pin(Node, VHost, Queue, true); action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> Inform("Unpinning queue ~p in vhost ~p from disk", [Queue, VHost]), - rpc_call(Node, rabbit_amqqueue, set_mode_pin, - [list_to_binary(VHost), list_to_binary(Queue), false]); - + set_queue_mode_pin(Node, VHost, Queue, false); + action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), call(Node, {rabbit_access_control, set_permissions, @@ -312,6 +310,13 @@ action(list_permissions, Node, VHost, [], Inform) -> display_list(call(Node, {rabbit_access_control, list_vhost_permissions, [VHost]})). +set_queue_mode_pin(Node, VHost, Queue, Disk) -> + VHostPath = list_to_binary(VHost), + QBin = list_to_binary(Queue), + rpc_call(Node, rabbit_amqqueue, with, + [rabbit_misc:r(VHostPath, queue, QBin), + fun(Q) -> rabbit_amqqueue:set_mode_pin(Q, Disk) end]). + parse_vhost_flag(Args) when is_list(Args) -> case Args of ["-p", VHost | RemainingArgs] -> diff --git a/src/rabbit_queue_mode_manager.erl b/src/rabbit_queue_mode_manager.erl index 5a6c8b39..afdccd0d 100644 --- a/src/rabbit_queue_mode_manager.erl +++ b/src/rabbit_queue_mode_manager.erl @@ -201,25 +201,23 @@ handle_call({pin_to_disk, Pid}, _From, callbacks = Callbacks, available_tokens = Avail, disk_mode_pins = Pins }) -> - {Res, State1} = + State1 = case sets:is_element(Pid, Pins) of - true -> {ok, State}; + true -> State; false -> + State2 = State #state { disk_mode_pins = + sets:add_element(Pid, Pins) }, case find_queue(Pid, Mixed) of {mixed, {OAlloc, _OActivity}} -> ok = set_queue_mode(Callbacks, Pid, disk), - {ok, State #state { mixed_queues = - dict:erase(Pid, Mixed), - available_tokens = Avail + OAlloc, - disk_mode_pins = - sets:add_element(Pid, Pins) - }}; + State2 #state { mixed_queues = dict:erase(Pid, Mixed), + available_tokens = Avail + OAlloc + }; disk -> - {ok, State #state { disk_mode_pins = - sets:add_element(Pid, Pins) }} + State2 end end, - {reply, Res, State1}; + {reply, ok, State1}; handle_call({unpin_from_disk, Pid}, _From, State = #state { disk_mode_pins = Pins }) -> -- cgit v1.2.1 From f8d2ade3ed48d95b6771db1d1493c730cbbe03c1 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 20 Aug 2009 11:47:20 +0100 Subject: That would never have got passed QA - it was racy - two different rabbitmqctl calls setting pins differently on the same q could have reached an inconsistent state. Fixed --- src/rabbit_amqqueue.erl | 7 +++---- src/rabbit_amqqueue_process.erl | 8 ++++++-- 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 88898e2d..b7cf92fd 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,7 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/2, set_mode/2]). +-export([set_mode_pin/2, set_mode/2, store_queue/1]). -import(mnesia). -import(gen_server2). @@ -108,6 +108,7 @@ -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). +-spec(store_queue/1 :: (amqqueue()) -> 'ok'). -endif. @@ -225,9 +226,7 @@ list(VHostPath) -> map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). set_mode_pin(Q, Disk) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> ok = store_queue(Q#amqqueue{pinned = Disk}) end), - gen_server2:pcast(Q#amqqueue.pid, 10, {set_mode_pin, Disk}). + gen_server2:pcast(Q#amqqueue.pid, 10, {set_mode_pin, Disk, Q}). set_mode(QPid, Mode) -> gen_server2:pcast(QPid, 10, {set_mode, Mode}). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 4b5255c4..c6bf2937 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -837,12 +837,16 @@ handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> {ok, MS1} = rabbit_mixed_queue:set_mode(Mode, PendingMessages, MS), noreply(State #q { mixed_state = MS1 }); -handle_cast({set_mode_pin, Disk}, State = #q { q = Q }) -> +handle_cast({set_mode_pin, Disk, Q}, State = #q { q = PQ }) -> + rabbit_misc:execute_mnesia_transaction( + fun () -> + ok = rabbit_amqqueue:store_queue(Q#amqqueue{pinned = Disk}) + end), case Disk of true -> rabbit_queue_mode_manager:pin_to_disk(self()); false -> rabbit_queue_mode_manager:unpin_from_disk(self()) end, - noreply(State #q { q = Q #amqqueue { pinned = Disk } }). + noreply(State #q { q = PQ #amqqueue { pinned = Disk } }). handle_info(report_memory, State) -> %% deliberately don't call noreply/2 as we don't want to restart the timer. -- cgit v1.2.1 From f429345a5a4c2a8f670bff733fb76cd950180d0a Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 20 Aug 2009 12:05:55 +0100 Subject: refactoring, also cosmetic --- src/rabbit_amqqueue.erl | 8 ++++++-- src/rabbit_amqqueue_process.erl | 7 ++----- 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index b7cf92fd..377e84c9 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -42,7 +42,7 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/2, set_mode/2, store_queue/1]). +-export([set_mode_pin/2, set_mode/2, internal_store/1]). -import(mnesia). -import(gen_server2). @@ -108,7 +108,7 @@ -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). --spec(store_queue/1 :: (amqqueue()) -> 'ok'). +-spec(internal_store/1 :: (amqqueue()) -> 'ok'). -endif. @@ -194,6 +194,10 @@ store_queue(Q = #amqqueue{durable = false}) -> ok = mnesia:write(rabbit_queue, Q, write), ok. +internal_store(Q) -> + rabbit_misc:execute_mnesia_transaction( + fun () -> ok = store_queue(Q) end). + start_queue_process(Q) -> {ok, Pid} = supervisor:start_child(rabbit_amqqueue_sup, [Q]), Q#amqqueue{pid = Pid}. diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index c6bf2937..7b87677b 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -838,15 +838,12 @@ handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> noreply(State #q { mixed_state = MS1 }); handle_cast({set_mode_pin, Disk, Q}, State = #q { q = PQ }) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - ok = rabbit_amqqueue:store_queue(Q#amqqueue{pinned = Disk}) - end), + ok = rabbit_amqqueue:internal_store(Q#amqqueue{pinned = Disk}), case Disk of true -> rabbit_queue_mode_manager:pin_to_disk(self()); false -> rabbit_queue_mode_manager:unpin_from_disk(self()) end, - noreply(State #q { q = PQ #amqqueue { pinned = Disk } }). + noreply(State #q { q = PQ#amqqueue{ pinned = Disk } }). handle_info(report_memory, State) -> %% deliberately don't call noreply/2 as we don't want to restart the timer. -- cgit v1.2.1 From 7364a3b6ac64e30073f80fe0f51347ae2823a927 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 20 Aug 2009 12:08:08 +0100 Subject: a diff with md5sum 3165dae740bff1d76e8e39385985fc7f --- src/rabbit_amqqueue.erl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 377e84c9..7177f4a9 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -32,7 +32,7 @@ -module(rabbit_amqqueue). -export([start/0, recover/0, declare/4, delete/3, purge/1]). --export([internal_declare/2, internal_delete/1]). +-export([internal_declare/2, internal_delete/1, internal_store/1]). -export([pseudo_queue/2]). -export([lookup/1, with/2, with_or_die/2, stat/1, stat_all/0, deliver/2, redeliver/2, requeue/3, ack/4]). @@ -42,7 +42,7 @@ -export([notify_sent/2, unblock/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). --export([set_mode_pin/2, set_mode/2, internal_store/1]). +-export([set_mode_pin/2, set_mode/2]). -import(mnesia). -import(gen_server2). @@ -106,9 +106,9 @@ -spec(set_mode/2 :: (pid(), ('disk' | 'mixed')) -> 'ok'). -spec(internal_declare/2 :: (amqqueue(), bool()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). +-spec(internal_store/1 :: (amqqueue()) -> 'ok'). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). --spec(internal_store/1 :: (amqqueue()) -> 'ok'). -endif. -- cgit v1.2.1 From 949f67eeb70f75cebe502aa50ec6387b785c593a Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 20 Aug 2009 12:20:26 +0100 Subject: refactor --- src/rabbit_amqqueue_process.erl | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 7b87677b..fa67dba0 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -839,10 +839,10 @@ handle_cast({set_mode, Mode}, State = #q { mixed_state = MS }) -> handle_cast({set_mode_pin, Disk, Q}, State = #q { q = PQ }) -> ok = rabbit_amqqueue:internal_store(Q#amqqueue{pinned = Disk}), - case Disk of - true -> rabbit_queue_mode_manager:pin_to_disk(self()); - false -> rabbit_queue_mode_manager:unpin_from_disk(self()) - end, + ok = (case Disk of + true -> fun rabbit_queue_mode_manager:pin_to_disk/1; + false -> fun rabbit_queue_mode_manager:unpin_from_disk/1 + end)(self()), noreply(State #q { q = PQ#amqqueue{ pinned = Disk } }). handle_info(report_memory, State) -> -- cgit v1.2.1 From f5858c416089cdf7d8b514926530d00c95483475 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 21 Aug 2009 18:05:00 +0100 Subject: pod for mode and pinning --- docs/rabbitmqctl.1.pod | 26 ++++++++++++++++++++++++++ src/rabbit_control.erl | 4 ++-- 2 files changed, 28 insertions(+), 2 deletions(-) diff --git a/docs/rabbitmqctl.1.pod b/docs/rabbitmqctl.1.pod index 42156896..fd7b06d0 100644 --- a/docs/rabbitmqctl.1.pod +++ b/docs/rabbitmqctl.1.pod @@ -186,6 +186,14 @@ memory bytes of memory consumed by the Erlang process for the queue, including stack, heap and internal structures +mode + whether the queue is currently in disk mode, in which all messages +are stored only on disk, or in mixed mode, where messages are stored +in memory and on disk only if necessary + +pinned + whether the queue has been pinned to disk only mode or not. + =back list_exchanges [-p I] [I ...] @@ -282,6 +290,24 @@ optional virtual host parameter for which to display results, defaulting to I<"/">. The default can be overridden with the B<-p> flag. Result columns for these commands and list_connections are tab-separated. +=head2 QUEUE MANAGEMENT + +pin_queue_to_disk [-p I] + +unpin_queue_from_disk [-p I] + +Controls the pinning of queues. Queues which are pinned to disk are +always in disk only mode, keeping all their messages only on disk, and +not in RAM. Pinning a queue to disk immediately forces it to flush its +contents to disk and will free up any memory it is using to hold +messages. Unpinning a queue from disk will allow the queue to move +back into mixed mode when enough memory is available to hold the +queue's contents in RAM. If a queue is not pinned to disk then it will +be automatically moved to disk only mode when the server detects that +available RAM is running low. + +This setting survives server restarts when applied to durable queues. + =head1 EXAMPLES Create a user named foo with (initial) password bar at the Erlang node diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 5cef0d80..334e0cba 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -137,8 +137,8 @@ Available commands: list_bindings [-p ] list_connections [ ...] - pin_queue_to_disk - unpin_queue_from_disk + pin_queue_to_disk [-p ] + unpin_queue_from_disk [-p ] Quiet output mode is selected with the \"-q\" flag. Informational messages are suppressed when quiet mode is in effect. -- cgit v1.2.1 From 00e180db419d4ea18c45dcfb605bca4342fada46 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 21 Aug 2009 19:15:11 +0100 Subject: minor correction for documentation --- docs/rabbitmqctl.1.pod | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/docs/rabbitmqctl.1.pod b/docs/rabbitmqctl.1.pod index bfc0618e..ba29acc5 100644 --- a/docs/rabbitmqctl.1.pod +++ b/docs/rabbitmqctl.1.pod @@ -308,6 +308,10 @@ server detects that available RAM is running low. This setting survives server restarts when applied to durable queues. +The pin_queue_to_disk and unpin_queue_from_disk commands accept an +optional virtual host parameter for which to manage queues, defaulting +to I<"/">. The default can be overridden with the B<-p> flag. + =head1 EXAMPLES Create a user named foo with (initial) password bar at the Erlang node -- cgit v1.2.1 From 51a08977ce848b3b0fbbc1c64bff0b57a818bc7c Mon Sep 17 00:00:00 2001 From: Paul Jones Date: Tue, 25 Aug 2009 14:08:36 +0100 Subject: Cleaned up the generation of hooks within transactions --- src/rabbit_amqqueue.erl | 25 ++++++++++++-------- src/rabbit_exchange.erl | 61 ++++++++++++++++++++++++++++++++----------------- src/rabbit_hooks.erl | 24 ++++++++++++++----- src/rabbit_presence.erl | 2 +- 4 files changed, 75 insertions(+), 37 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index c8fa0d60..84415cf6 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -315,32 +315,39 @@ internal_delete(QueueName) -> case mnesia:wread({rabbit_queue, QueueName}) of [] -> {error, not_found}; [_] -> - ok = rabbit_exchange:delete_queue_bindings(QueueName), + {ok, Post} = rabbit_exchange:delete_queue_bindings(QueueName), ok = mnesia:delete({rabbit_queue, QueueName}), ok = mnesia:delete({rabbit_durable_queue, QueueName}), - ok + {ok, Post} end end) of - ok -> rabbit_hooks:trigger(queue_delete, [QueueName]), - ok; + {ok, Post} -> Post(), + rabbit_hooks:trigger(queue_delete, [QueueName]), + ok; Error -> Error end. on_node_down(Node) -> - rabbit_misc:execute_mnesia_transaction( + Post = rabbit_misc:execute_mnesia_transaction( fun () -> qlc:fold( fun (QueueName, Acc) -> - ok = rabbit_exchange:delete_transient_queue_bindings( + {ok, Post} = + rabbit_exchange:delete_transient_queue_bindings( QueueName), ok = mnesia:delete({rabbit_queue, QueueName}), - Acc + fun() -> Acc(), + Post(), + rabbit_hooks:trigger(queue_delete, [QueueName]) + end end, - ok, + fun() -> ok end, qlc:q([QueueName || #amqqueue{name = QueueName, pid = Pid} <- mnesia:table(rabbit_queue), node(Pid) == Node])) - end). + end), + Post(), + ok. pseudo_queue(QueueName, Pid) -> #amqqueue{name = QueueName, diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 81799d1b..c1c92cbb 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -302,18 +302,19 @@ lookup_qpids(Queues) -> %% to be implemented for 0.91 ? delete_exchange_bindings(ExchangeName) -> - [begin + Bindings = [begin ok = mnesia:delete_object(rabbit_reverse_route, reverse_route(Route), write), ok = delete_forward_routes(Route), #route{binding = B} = Route, - trigger_delete_binding_hook(B) + B end || Route <- mnesia:match_object( rabbit_route, #route{binding = #binding{exchange_name = ExchangeName, _ = '_'}}, write)], - ok. + + {ok, fun() -> [trigger_delete_binding_hook(B) || B <- Bindings] end}. delete_queue_bindings(QueueName) -> delete_queue_bindings(QueueName, fun delete_forward_routes/1). @@ -323,20 +324,25 @@ delete_transient_queue_bindings(QueueName) -> delete_queue_bindings(QueueName, FwdDeleteFun) -> Exchanges = exchanges_for_queue(QueueName), - [begin + BindingCleanup = [begin ok = FwdDeleteFun(reverse_route(Route)), - ok = mnesia:delete_object(rabbit_reverse_route, Route, write) + ok = mnesia:delete_object(rabbit_reverse_route, Route, write), + #route{binding = B} = Route, + fun() -> trigger_delete_binding_hook(B) end end || Route <- mnesia:match_object( rabbit_reverse_route, reverse_route( #route{binding = #binding{queue_name = QueueName, _ = '_'}}), write)], - [begin + ExchangeCleanup = [begin [X] = mnesia:read({rabbit_exchange, ExchangeName}), - ok = maybe_auto_delete(X) + {ok, Post} = maybe_auto_delete(X), + Post end || ExchangeName <- Exchanges], - ok. + {ok, fun() -> + [Cleanup() || Cleanup <- BindingCleanup ++ ExchangeCleanup] + end}. delete_forward_routes(Route) -> ok = mnesia:delete_object(rabbit_route, Route, write), @@ -404,7 +410,7 @@ add_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> RoutingKey, Arguments]). delete_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> - binding_action( + case binding_action( ExchangeName, QueueName, RoutingKey, Arguments, fun (X, Q, B) -> case mnesia:match_object(rabbit_route, #route{binding = B}, @@ -412,11 +418,14 @@ delete_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> [] -> {error, binding_not_found}; _ -> ok = sync_binding(B, Q#amqqueue.durable, fun mnesia:delete_object/3), - %% TODO: Move outside of the tx - trigger_delete_binding_hook(B), - maybe_auto_delete(X) + {ok, Post} = maybe_auto_delete(X), + {ok, fun() -> trigger_delete_binding_hook(B), Post() end} end - end). + end) of + {ok, Post} -> Post(), + ok; + Error -> Error + end. binding_action(ExchangeName, QueueName, RoutingKey, Arguments, Fun) -> call_with_exchange_and_queue( @@ -572,15 +581,25 @@ last_topic_match(P, R, [BacktrackNext | BacktrackList]) -> topic_matches1(P, R) or last_topic_match(P, [BacktrackNext | R], BacktrackList). delete(ExchangeName, _IfUnused = true) -> - call_with_exchange(ExchangeName, fun conditional_delete/1); + case call_with_exchange(ExchangeName, fun conditional_delete/1) of + {ok, Post} -> Post(), + ok; + Error -> Error + end; delete(ExchangeName, _IfUnused = false) -> - call_with_exchange(ExchangeName, fun unconditional_delete/1). + case call_with_exchange(ExchangeName, fun unconditional_delete/1) of + {ok, Post} -> Post(), + ok; + Error -> Error + end. maybe_auto_delete(#exchange{auto_delete = false}) -> - ok; + {ok, fun() -> ok end}; maybe_auto_delete(Exchange = #exchange{auto_delete = true}) -> - conditional_delete(Exchange), - ok. + case conditional_delete(Exchange) of + {ok, Post} -> {ok, Post}; + _ -> {ok, fun() -> ok end} + end. conditional_delete(Exchange = #exchange{name = ExchangeName}) -> Match = #route{binding = #binding{exchange_name = ExchangeName, _ = '_'}}, @@ -593,10 +612,10 @@ conditional_delete(Exchange = #exchange{name = ExchangeName}) -> end. unconditional_delete(#exchange{name = ExchangeName}) -> - ok = delete_exchange_bindings(ExchangeName), - rabbit_hooks:trigger(exchange_delete, [ExchangeName]), + {ok, Post} = delete_exchange_bindings(ExchangeName), ok = mnesia:delete({rabbit_durable_exchange, ExchangeName}), - ok = mnesia:delete({rabbit_exchange, ExchangeName}). + ok = mnesia:delete({rabbit_exchange, ExchangeName}), + {ok, fun() -> Post(), rabbit_hooks:trigger(exchange_delete, [ExchangeName]) end}. trigger_delete_binding_hook(#binding{queue_name = Q, exchange_name = X, key = RK, args = Args}) -> diff --git a/src/rabbit_hooks.erl b/src/rabbit_hooks.erl index 2afae963..a610e7df 100644 --- a/src/rabbit_hooks.erl +++ b/src/rabbit_hooks.erl @@ -32,21 +32,33 @@ -module(rabbit_hooks). -export([start/0]). --export([subscribe/2, unsubscribe/2, trigger/2]). +-export([subscribe/3, unsubscribe/2, trigger/2]). -define(TableName, rabbit_hooks). +-ifdef(use_specs). + +-type(hookfun() :: fun((list()) -> 'ok')). + +-spec(start/0 :: () -> 'ok'). +-spec(subscribe/3 :: (atom(), atom(), hookfun()) -> 'ok'). +-spec(unsubscribe/2 :: (atom(), atom()) -> 'ok'). +-spec(trigger/2 :: (atom(), list()) -> 'ok'). + +-endif. + start() -> ets:new(?TableName, [bag, public, named_table]), ok. -subscribe(Hook, Handler) -> - ets:insert(?TableName, {Hook, Handler}). +subscribe(Hook, HandlerName, Handler) -> + ets:insert(?TableName, {Hook, HandlerName, Handler}). -unsubscribe(Hook, Handler) -> - ets:delete_object(?TableName, {Hook, Handler}). +unsubscribe(Hook, HandlerName) -> + ets:match_delete(?TableName, {Hook, HandlerName, '_'}). trigger(Hook, Args) -> + io:format("Hook: ~p(~p)~n", [Hook, Args]), Hooks = ets:lookup(?TableName, Hook), - [catch H(Args) || {_, H} <- Hooks], + [catch H(Args) || {_, _, H} <- Hooks], ok. diff --git a/src/rabbit_presence.erl b/src/rabbit_presence.erl index 7031f695..aeca69b8 100644 --- a/src/rabbit_presence.erl +++ b/src/rabbit_presence.erl @@ -89,7 +89,7 @@ code_change(_, State, _) -> attach(InvokeMethod, Hooks) when is_list(Hooks) -> [attach(InvokeMethod, Hook) || Hook <- Hooks]; attach(InvokeMethod, HookName) when is_atom(HookName) -> - rabbit_hooks:subscribe(HookName, handler(InvokeMethod, HookName)). + rabbit_hooks:subscribe(HookName, presence, handler(InvokeMethod, HookName)). handler(async, HookName) -> fun(Args) -> gen_server:cast(?MODULE, {HookName, Args}) end; -- cgit v1.2.1 From 4549504002c1696c1b89efc0ca5ec6dab28276e7 Mon Sep 17 00:00:00 2001 From: Paul Jones Date: Tue, 25 Aug 2009 14:39:20 +0100 Subject: Post-merge cleanup to minimise changes --- src/rabbit.erl | 2 +- src/rabbit_access_control.erl | 5 ++++- src/rabbit_amqqueue_process.erl | 5 ----- 3 files changed, 5 insertions(+), 7 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index fe7340dc..02dd00a3 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -133,8 +133,8 @@ start(normal, []) -> {"core processes", fun () -> ok = start_child(rabbit_log), - ok = rabbit_hooks:start(), + ok = rabbit_amqqueue:start(), {ok, MemoryAlarms} = application:get_env(memory_alarms), diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl index 8a2ec63b..b37e8a2e 100644 --- a/src/rabbit_access_control.erl +++ b/src/rabbit_access_control.erl @@ -248,12 +248,15 @@ add_vhost(VHostPath) -> {<<"amq.match">>, headers}, %% per 0-9-1 pdf {<<"amq.headers">>, headers}, %% per 0-9-1 xml {<<"amq.fanout">>, fanout}]], - rabbit_hooks:trigger(vhost_create, [VHostPath]), ok; [_] -> mnesia:abort({vhost_already_exists, VHostPath}) end end), + case R of + ok -> rabbit_hooks:trigger(vhost_create, [VHostPath]); + _ -> ok + end, rabbit_log:info("Added vhost ~p~n", [VHostPath]), R. diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 4f73c8d1..fe2e8509 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -815,11 +815,6 @@ handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> handle_ch_down(DownPid, State); -handle_info(timeout, State) -> - %% TODO: Once we drop support for R11B-5, we can change this to - %% {noreply, State, hibernate}; - proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State]); - handle_info(Info, State) -> ?LOGDEBUG("Info in queue: ~p~n", [Info]), {stop, {unhandled_info, Info}, State}. -- cgit v1.2.1 From 71ee01d1c5151af6e1c4c680ffda8bdcc3846e7d Mon Sep 17 00:00:00 2001 From: Paul Jones Date: Tue, 25 Aug 2009 15:21:20 +0100 Subject: Add binding now checks if the binding exists first so as to prevent mis-firing the hook --- src/rabbit_exchange.erl | 26 +++++++++++++++++--------- src/rabbit_presence.erl | 10 +++++----- 2 files changed, 22 insertions(+), 14 deletions(-) diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index c1c92cbb..7caecb2c 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -396,18 +396,26 @@ call_with_exchange_and_queue(Exchange, Queue, Fun) -> end). add_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> - binding_action( + R = binding_action( ExchangeName, QueueName, RoutingKey, Arguments, fun (X, Q, B) -> - if Q#amqqueue.durable and not(X#exchange.durable) -> - {error, durability_settings_incompatible}; - true -> ok = sync_binding(B, Q#amqqueue.durable, - fun mnesia:write/3) - end + case mnesia:match_object(rabbit_route, #route{binding = B}, + write) of + [] -> + if Q#amqqueue.durable and not(X#exchange.durable) -> + {error, durability_settings_incompatible}; + true -> ok = sync_binding(B, Q#amqqueue.durable, + fun mnesia:write/3) + end; + _ -> ok + end end), - %% TODO: Need to check if a binding is already there - rabbit_hooks:trigger(binding_create, [ExchangeName, QueueName, - RoutingKey, Arguments]). + case R of + ok -> rabbit_hooks:trigger(binding_create, [ExchangeName, QueueName, + RoutingKey, Arguments]); + _ -> ok + end, + R. delete_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> case binding_action( diff --git a/src/rabbit_presence.erl b/src/rabbit_presence.erl index b82ea0b9..d960f200 100644 --- a/src/rabbit_presence.erl +++ b/src/rabbit_presence.erl @@ -37,16 +37,16 @@ -include("rabbit_framing.hrl"). -export([start_link/0]). --export([fire_presence_sync/2, fire_presence_async/2]). +-export([fire_presence_sync/3, fire_presence_async/3]). -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]). start_link() -> gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). -fire_presence_sync(HookName, Args) -> +fire_presence_sync(HookName, presence, Args) -> gen_server:call(?MODULE, {HookName, Args}). -fire_presence_async(HookName, Args) -> +fire_presence_async(HookName, presence, Args) -> gen_server:cast(?MODULE, {HookName, Args}). %% Gen Server Implementation @@ -97,10 +97,10 @@ attach(InvokeMethod, HookName) when is_atom(HookName) -> rabbit_hooks:subscribe(HookName, presence, handler(InvokeMethod, HookName)). handler(async, HookName) -> - {?MODULE, fire_presence_async, [HookName]}; + {?MODULE, fire_presence_async, []}; handler(sync, HookName) -> - {?MODULE, [HookName]}. + {?MODULE, fire_presence_sync, []}. escape_for_routing_key(K) when is_binary(K) -> list_to_binary(escape_for_routing_key1(binary_to_list(K))). -- cgit v1.2.1 From 7a4b0f522abb04fee32525a7790f63eaa397116b Mon Sep 17 00:00:00 2001 From: Paul Jones Date: Tue, 25 Aug 2009 16:19:54 +0100 Subject: Fixed typing issue when looking up bindings to delete; added presence events for bindings --- src/rabbit_exchange.erl | 14 +++++++++----- src/rabbit_presence.erl | 47 +++++++++++++++++++++++++++++++++-------------- 2 files changed, 42 insertions(+), 19 deletions(-) diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 7caecb2c..fd0f71d2 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -327,7 +327,7 @@ delete_queue_bindings(QueueName, FwdDeleteFun) -> BindingCleanup = [begin ok = FwdDeleteFun(reverse_route(Route)), ok = mnesia:delete_object(rabbit_reverse_route, Route, write), - #route{binding = B} = Route, + #reverse_route{reverse_binding = B} = Route, fun() -> trigger_delete_binding_hook(B) end end || Route <- mnesia:match_object( rabbit_reverse_route, @@ -407,15 +407,16 @@ add_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> true -> ok = sync_binding(B, Q#amqqueue.durable, fun mnesia:write/3) end; - _ -> ok + _ -> already_exists end end), case R of ok -> rabbit_hooks:trigger(binding_create, [ExchangeName, QueueName, - RoutingKey, Arguments]); + RoutingKey, Arguments]), + ok; + already_exists -> ok; _ -> ok - end, - R. + end. delete_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> case binding_action( @@ -625,6 +626,9 @@ unconditional_delete(#exchange{name = ExchangeName}) -> ok = mnesia:delete({rabbit_exchange, ExchangeName}), {ok, fun() -> Post(), rabbit_hooks:trigger(exchange_delete, [ExchangeName]) end}. +trigger_delete_binding_hook(#reverse_binding{queue_name = Q, exchange_name = X, + key = RK, args = Args}) -> + rabbit_hooks:trigger(binding_delete, [X, Q, RK, Args]); trigger_delete_binding_hook(#binding{queue_name = Q, exchange_name = X, key = RK, args = Args}) -> rabbit_hooks:trigger(binding_delete, [X, Q, RK, Args]). diff --git a/src/rabbit_presence.erl b/src/rabbit_presence.erl index d960f200..fb763031 100644 --- a/src/rabbit_presence.erl +++ b/src/rabbit_presence.erl @@ -37,23 +37,26 @@ -include("rabbit_framing.hrl"). -export([start_link/0]). --export([fire_presence_sync/3, fire_presence_async/3]). +-export([fire_presence_sync/3, fire_presence_async/3, fire_presence_async/6]). -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]). start_link() -> gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). -fire_presence_sync(HookName, presence, Args) -> - gen_server:call(?MODULE, {HookName, Args}). -fire_presence_async(HookName, presence, Args) -> - gen_server:cast(?MODULE, {HookName, Args}). +fire_presence_sync(HookName, presence, Object) -> + gen_server:call(?MODULE, {HookName, Object}). +fire_presence_async(HookName, presence, Object) -> + gen_server:cast(?MODULE, {HookName, Object}). +fire_presence_async(HookName, presence, Queue, Exchange, RoutingKey, Args) -> + gen_server:cast(?MODULE, {HookName, Queue, Exchange, RoutingKey, Args}). %% Gen Server Implementation init([]) -> attach(sync, vhost_create), attach(async, [exchange_create, exchange_delete]), attach(async, [queue_create, queue_delete]), + attach(async, [binding_create, binding_delete]), {ok, []}. handle_call({vhost_create, [VHostPath]}, _, State) -> @@ -77,6 +80,12 @@ handle_cast({exchange_create, [QName = #resource{}]}, State) -> handle_cast({exchange_delete, [QName = #resource{}]}, State) -> emit_presence(QName, <<"shutdown">>), {noreply, State}; +handle_cast({binding_create, [QName, XName, RK, _Args]}, State) -> + emit_presence(QName, XName, RK, <<"startup">>), + {noreply, State}; +handle_cast({binding_delete, [QName, XName, RK, _Args]}, State) -> + emit_presence(QName, XName, RK, <<"shutdown">>), + {noreply, State}; handle_cast(_Msg, State) -> io:format("Unknown cast ~p~n", [_Msg]), {noreply, State}. @@ -94,12 +103,12 @@ code_change(_, State, _) -> attach(InvokeMethod, Hooks) when is_list(Hooks) -> [attach(InvokeMethod, Hook) || Hook <- Hooks]; attach(InvokeMethod, HookName) when is_atom(HookName) -> - rabbit_hooks:subscribe(HookName, presence, handler(InvokeMethod, HookName)). + rabbit_hooks:subscribe(HookName, presence, handler(InvokeMethod)). -handler(async, HookName) -> +handler(async) -> {?MODULE, fire_presence_async, []}; -handler(sync, HookName) -> +handler(sync) -> {?MODULE, fire_presence_sync, []}. escape_for_routing_key(K) when is_binary(K) -> @@ -117,15 +126,25 @@ escape_for_routing_key1([Ch | Rest]) -> _ -> [Ch | Tail] end. -emit_presence(Resource = #resource{kind = KindAtom, name = InstanceBin}, +emit_presence(#resource{virtual_host = VHost, kind = KindAtom, name = InstanceBin}, EventBin) -> ClassBin = list_to_binary(atom_to_list(KindAtom)), - XName = rabbit_misc:r(Resource, exchange, <<"amq.rabbitmq.presence">>), EscapedInstance = escape_for_routing_key(InstanceBin), - RK = list_to_binary(["presence.", ClassBin, ".", EscapedInstance, - ".", EventBin]), - Body = list_to_binary([ClassBin, ".", EventBin, ".", EscapedInstance]), - Message = rabbit_basic:message(XName, RK, #'P_basic'{}, Body), + EventKey = list_to_binary([ClassBin, ".", EscapedInstance, ".", EventBin]), + emit_event(VHost, EventKey). + +emit_presence(#resource{virtual_host = VHost, name = QName}, #resource{name = XName}, BindingRK, EventBin) -> + EscapedQName = escape_for_routing_key(QName), + EscapedXName = escape_for_routing_key(XName), + EscapedRK = escape_for_routing_key(BindingRK), + EventKey = list_to_binary(["binding.", EscapedQName, ".", EscapedXName, ".", + EscapedRK, ".", EventBin]), + emit_event(VHost, EventKey). + +emit_event(VHost, Event) -> + RK = list_to_binary(["presence." ++ binary_to_list(Event)]), + XName = rabbit_misc:r(VHost, exchange, <<"amq.rabbitmq.presence">>), + Message = rabbit_basic:message(XName, RK, #'P_basic'{}, Event), Delivery = rabbit_basic:delivery(false, false, none, Message), _Ignored = case rabbit_exchange:lookup(XName) of {ok, Exchange} -> -- cgit v1.2.1 From 5bca527dd10766875c69bb50c5e8d4596dd7feb4 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Wed, 26 Aug 2009 14:25:36 +0100 Subject: Add behaviour for rabbit_mixed_queue. --- Makefile | 5 +++- src/rabbit_amqqueue_process.erl | 50 ++++++++++++++++++++------------------ src/rabbit_mixed_queue.erl | 2 ++ src/rabbit_queue_backing_store.erl | 26 ++++++++++++++++++++ 4 files changed, 58 insertions(+), 25 deletions(-) create mode 100644 src/rabbit_queue_backing_store.erl diff --git a/Makefile b/Makefile index f0702756..caa5cb98 100644 --- a/Makefile +++ b/Makefile @@ -47,7 +47,10 @@ $(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app $(EBIN_DIR)/gen_server2.beam: $(SOURCE_DIR)/gen_server2.erl erlc $(ERLC_OPTS) $< -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl $(INCLUDE_DIR)/rabbit_framing.hrl $(INCLUDE_DIR)/rabbit.hrl $(EBIN_DIR)/gen_server2.beam +$(EBIN_DIR)/rabbit_queue_backing_store.beam: $(SOURCE_DIR)/rabbit_queue_backing_store.erl + erlc $(ERLC_OPTS) $< + +$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl $(INCLUDE_DIR)/rabbit_framing.hrl $(INCLUDE_DIR)/rabbit.hrl $(EBIN_DIR)/gen_server2.beam $(EBIN_DIR)/rabbit_queue_backing_store.beam erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< # ERLC_EMULATOR="erl -smp" erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index b4b06b16..27b8621d 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -35,6 +35,8 @@ -behaviour(gen_server2). +-define(QMODULE, rabbit_mixed_queue). + -define(UNSENT_MESSAGE_LIMIT, 100). -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). @@ -103,7 +105,7 @@ init(Q = #amqqueue { name = QName, durable = Durable }) -> ?LOGDEBUG("Queue starting - ~p~n", [Q]), ok = rabbit_queue_mode_manager:register (self(), false, rabbit_amqqueue, set_storage_mode, [self()]), - {ok, MS} = rabbit_mixed_queue:init(QName, Durable), + {ok, MS} = ?QMODULE:init(QName, Durable), State = #q{q = Q, owner = none, exclusive_consumer = none, @@ -122,7 +124,7 @@ init(Q = #amqqueue { name = QName, durable = Durable }) -> terminate(_Reason, State) -> %% FIXME: How do we cancel active subscriptions? QName = qname(State), - rabbit_mixed_queue:delete_queue(State #q.mixed_state), + ?QMODULE:delete_queue(State #q.mixed_state), stop_memory_timer(State), ok = rabbit_amqqueue:internal_delete(QName). @@ -268,7 +270,7 @@ deliver_from_queue_pred({IsEmpty, _AutoAcks}, _State) -> deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, State = #q { mixed_state = MS }) -> {{Msg, IsDelivered, AckTag, Remaining}, MS1} = - rabbit_mixed_queue:fetch(MS), + ?QMODULE:fetch(MS), AutoAcks1 = case AckRequired of true -> AutoAcks; @@ -280,11 +282,11 @@ deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, run_message_queue(State = #q { mixed_state = MS }) -> Funs = { fun deliver_from_queue_pred/2, fun deliver_from_queue_deliver/3 }, - IsEmpty = rabbit_mixed_queue:is_empty(MS), + IsEmpty = ?QMODULE:is_empty(MS), {{_IsEmpty1, AutoAcks}, State1} = deliver_msgs_to_consumers(Funs, {IsEmpty, []}, State), {ok, MS1} = - rabbit_mixed_queue:ack(AutoAcks, State1 #q.mixed_state), + ?QMODULE:ack(AutoAcks, State1 #q.mixed_state), State1 #q { mixed_state = MS1 }. attempt_immediate_delivery(none, _ChPid, Msg, State) -> @@ -295,7 +297,7 @@ attempt_immediate_delivery(none, _ChPid, Msg, State) -> case AckRequired of true -> {ok, AckTag1, MS} = - rabbit_mixed_queue:publish_delivered( + ?QMODULE:publish_delivered( Msg, State1 #q.mixed_state), {AckTag1, State1 #q { mixed_state = MS }}; false -> @@ -305,7 +307,7 @@ attempt_immediate_delivery(none, _ChPid, Msg, State) -> end, deliver_msgs_to_consumers({ PredFun, DeliverFun }, false, State); attempt_immediate_delivery(Txn, ChPid, Msg, State) -> - {ok, MS} = rabbit_mixed_queue:tx_publish(Msg, State #q.mixed_state), + {ok, MS} = ?QMODULE:tx_publish(Msg, State #q.mixed_state), record_pending_message(Txn, ChPid, Msg), {true, State #q { mixed_state = MS }}. @@ -315,7 +317,7 @@ deliver_or_enqueue(Txn, ChPid, Msg, State) -> {true, NewState}; {false, NewState} -> %% Txn is none and no unblocked channels with consumers - {ok, MS} = rabbit_mixed_queue:publish(Msg, State #q.mixed_state), + {ok, MS} = ?QMODULE:publish(Msg, State #q.mixed_state), {false, NewState #q { mixed_state = MS }} end. @@ -329,11 +331,11 @@ deliver_or_requeue_n(MsgsWithAcks, State) -> {{_RemainingLengthMinusOne, AutoAcks, OutstandingMsgs}, NewState} = deliver_msgs_to_consumers( Funs, {length(MsgsWithAcks), [], MsgsWithAcks}, State), - {ok, MS} = rabbit_mixed_queue:ack(AutoAcks, + {ok, MS} = ?QMODULE:ack(AutoAcks, NewState #q.mixed_state), case OutstandingMsgs of [] -> run_message_queue(NewState #q { mixed_state = MS }); - _ -> {ok, MS1} = rabbit_mixed_queue:requeue(OutstandingMsgs, MS), + _ -> {ok, MS1} = ?QMODULE:requeue(OutstandingMsgs, MS), NewState #q { mixed_state = MS1 } end. @@ -490,15 +492,15 @@ commit_transaction(Txn, State) -> store_ch_record(C#cr{unacked_messages = Remaining}), MsgWithAcks end, - {ok, MS} = rabbit_mixed_queue:tx_commit( + {ok, MS} = ?QMODULE:tx_commit( PendingMessagesOrdered, Acks, State #q.mixed_state), State #q { mixed_state = MS }. rollback_transaction(Txn, State) -> #tx { pending_messages = PendingMessages } = lookup_tx(Txn), - {ok, MS} = rabbit_mixed_queue:tx_rollback(PendingMessages, - State #q.mixed_state), + {ok, MS} = ?QMODULE:tx_rollback(PendingMessages, + State #q.mixed_state), erase_tx(Txn), State #q { mixed_state = MS }. @@ -516,11 +518,11 @@ i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; i(storage_mode, #q{ mixed_state = MS }) -> - rabbit_mixed_queue:storage_mode(MS); + ?QMODULE:storage_mode(MS); i(pid, _) -> self(); i(messages_ready, #q { mixed_state = MS }) -> - rabbit_mixed_queue:len(MS); + ?QMODULE:len(MS); i(messages_unacknowledged, _) -> lists:sum([dict:size(UAM) || #cr{unacked_messages = UAM} <- all_ch_record()]); @@ -546,7 +548,7 @@ i(Item, _) -> report_memory(Hib, State = #q { mixed_state = MS }) -> {MS1, MSize, Gain, Loss} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), + ?QMODULE:estimate_queue_memory_and_reset_counters(MS), rabbit_queue_mode_manager:report_memory(self(), MSize, Gain, Loss, Hib), State #q { mixed_state = MS1 }. @@ -601,7 +603,7 @@ handle_call({basic_get, ChPid, NoAck}, _From, next_msg_id = NextId, mixed_state = MS }) -> - case rabbit_mixed_queue:fetch(MS) of + case ?QMODULE:fetch(MS) of {empty, MS1} -> reply(empty, State #q { mixed_state = MS1 }); {{Msg, IsDelivered, AckTag, Remaining}, MS1} -> AckRequired = not(NoAck), @@ -613,7 +615,7 @@ handle_call({basic_get, ChPid, NoAck}, _From, store_ch_record(C#cr{unacked_messages = NewUAM}), {ok, MS1}; false -> - rabbit_mixed_queue:ack([{Msg, AckTag}], MS1) + ?QMODULE:ack([{Msg, AckTag}], MS1) end, Message = {QName, self(), NextId, IsDelivered, Msg}, reply({ok, Remaining, Message}, @@ -699,12 +701,12 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, mixed_state = MS, active_consumers = ActiveConsumers}) -> - Length = rabbit_mixed_queue:len(MS), + Length = ?QMODULE:len(MS), reply({ok, Name, Length, queue:len(ActiveConsumers)}, State); handle_call({delete, IfUnused, IfEmpty}, _From, State = #q { mixed_state = MS }) -> - Length = rabbit_mixed_queue:len(MS), + Length = ?QMODULE:len(MS), IsEmpty = Length == 0, IsUnused = is_unused(State), if @@ -717,7 +719,7 @@ handle_call({delete, IfUnused, IfEmpty}, _From, end; handle_call(purge, _From, State) -> - {Count, MS} = rabbit_mixed_queue:purge(State #q.mixed_state), + {Count, MS} = ?QMODULE:purge(State #q.mixed_state), reply({ok, Count}, State #q { mixed_state = MS }); @@ -760,7 +762,7 @@ handle_cast({ack, Txn, MsgIds, ChPid}, State) -> none -> {MsgWithAcks, Remaining} = collect_messages(MsgIds, UAM), {ok, MS} = - rabbit_mixed_queue:ack(MsgWithAcks, State #q.mixed_state), + ?QMODULE:ack(MsgWithAcks, State #q.mixed_state), store_ch_record(C#cr{unacked_messages = Remaining}), noreply(State #q { mixed_state = MS }); _ -> @@ -816,7 +818,7 @@ handle_cast({set_storage_mode, Mode}, State = #q { mixed_state = MS }) -> PendingMessages = lists:flatten([Pending || #tx { pending_messages = Pending} <- all_tx_record()]), - {ok, MS1} = rabbit_mixed_queue:set_storage_mode(Mode, PendingMessages, MS), + {ok, MS1} = ?QMODULE:set_storage_mode(Mode, PendingMessages, MS), noreply(State #q { mixed_state = MS1 }). handle_info(report_memory, State) -> @@ -845,7 +847,7 @@ handle_info(Info, State) -> {stop, {unhandled_info, Info}, State}. handle_pre_hibernate(State = #q { mixed_state = MS }) -> - MS1 = rabbit_mixed_queue:maybe_prefetch(MS), + MS1 = ?QMODULE:maybe_prefetch(MS), State1 = stop_memory_timer(report_memory(true, State #q { mixed_state = MS1 })), %% don't call noreply/1 as that'll restart the memory_report_timer diff --git a/src/rabbit_mixed_queue.erl b/src/rabbit_mixed_queue.erl index bb0ac973..8275d75d 100644 --- a/src/rabbit_mixed_queue.erl +++ b/src/rabbit_mixed_queue.erl @@ -31,6 +31,8 @@ -module(rabbit_mixed_queue). +-behaviour(rabbit_queue_backing_store). + -include("rabbit.hrl"). -export([init/2]). diff --git a/src/rabbit_queue_backing_store.erl b/src/rabbit_queue_backing_store.erl new file mode 100644 index 00000000..21f4ee82 --- /dev/null +++ b/src/rabbit_queue_backing_store.erl @@ -0,0 +1,26 @@ +-module(rabbit_queue_backing_store). + +-export([behaviour_info/1]). + +behaviour_info(callbacks) -> + [ + {init, 2}, + {delete_queue, 1}, + {fetch, 1}, + {is_empty, 1}, + {ack, 2}, + {publish_delivered, 2}, + {tx_publish, 2}, + {publish, 2}, + {requeue, 2}, + {tx_commit, 3}, + {tx_cancel, 2}, + {storage_mode, 1}, + {len, 1}, + {estimate_queue_memory_and_reset_counters, 1}, + {purge, 1}, + {set_storage_mode, 3}, + {maybe_prefetch, 1} + ]; +behaviour_info(_Other) -> + undefined. -- cgit v1.2.1 From b29f65540db5d1c0ca36788c2ed28a068ad18940 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Wed, 26 Aug 2009 14:28:07 +0100 Subject: Update to renamed interface. --- src/rabbit_queue_backing_store.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_queue_backing_store.erl b/src/rabbit_queue_backing_store.erl index 21f4ee82..a2ccc23a 100644 --- a/src/rabbit_queue_backing_store.erl +++ b/src/rabbit_queue_backing_store.erl @@ -14,7 +14,7 @@ behaviour_info(callbacks) -> {publish, 2}, {requeue, 2}, {tx_commit, 3}, - {tx_cancel, 2}, + {tx_rollback, 2}, {storage_mode, 1}, {len, 1}, {estimate_queue_memory_and_reset_counters, 1}, -- cgit v1.2.1 From 35761cd611e55918dfcc25fa7dd0a2a658f8222e Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 1 Sep 2009 16:15:43 +0100 Subject: When we manually oppress a process we should record the available number of tokens as 0. That way, when it's liberated, it is most likely to change back to liberated mode, should enough tokens be available. If tokens are tight, we correctly will stay oppressed. --- src/rabbit_memory_manager.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_memory_manager.erl b/src/rabbit_memory_manager.erl index c410ca6e..2bb3f4e1 100644 --- a/src/rabbit_memory_manager.erl +++ b/src/rabbit_memory_manager.erl @@ -211,7 +211,7 @@ handle_call({oppress, Pid}, _From, {libre, OAlloc, _OActivity} -> Procs1 = set_process_mode(Procs, Callbacks, Pid, oppressed, - {oppressed, Avail}), + {oppressed, 0}), State2 #state { processes = Procs1, available_tokens = Avail + OAlloc }; {oppressed, _OrigAvail} -> -- cgit v1.2.1 From d152ae0d47bb18c95a0107fe2df9bd7ee15cd604 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 2 Sep 2009 11:32:01 +0100 Subject: made pin_queue_to_disk and unpin_queue_from_disk work even if coverage is turned on --- src/rabbit_control.erl | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 19e7ef32..c681d8bc 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -32,7 +32,7 @@ -module(rabbit_control). -include("rabbit.hrl"). --export([start/0, stop/0, action/4]). +-export([start/0, stop/0, action/4, set_queue_storage_mode_pin/3]). -record(params, {quiet, node, command, args}). @@ -46,6 +46,8 @@ -spec(stop/0 :: () -> 'ok'). -spec(action/4 :: (atom(), erlang_node(), [string()], fun ((string(), [any()]) -> 'ok')) -> 'ok'). +-spec(set_queue_storage_mode_pin/3 :: + (binary(), binary(), boolean()) -> 'ok'). -endif. @@ -313,9 +315,13 @@ action(list_permissions, Node, VHost, [], Inform) -> set_queue_storage_mode_pin(Node, VHost, Queue, Disk) -> VHostPath = list_to_binary(VHost), QBin = list_to_binary(Queue), - rpc_call(Node, rabbit_amqqueue, with, - [rabbit_misc:r(VHostPath, queue, QBin), - fun(Q) -> rabbit_amqqueue:set_storage_mode_pin(Q, Disk) end]). + rpc_call(Node, rabbit_control, set_queue_storage_mode_pin, + [VHostPath, QBin, Disk]). + +set_queue_storage_mode_pin(VHostPath, QBin, Disk) -> + rabbit_amqqueue:with( + rabbit_misc:r(VHostPath, queue, QBin), + fun(Q) -> rabbit_amqqueue:set_storage_mode_pin(Q, Disk) end). parse_vhost_flag(Args) when is_list(Args) -> case Args of -- cgit v1.2.1 From 2c99d3c3b4e573898a2d2e7f112ee7ea2d523f8d Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 2 Sep 2009 15:23:38 +0100 Subject: Added explanatory comment --- src/rabbit_memory_manager.erl | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/rabbit_memory_manager.erl b/src/rabbit_memory_manager.erl index 1027e2e0..3a7c643d 100644 --- a/src/rabbit_memory_manager.erl +++ b/src/rabbit_memory_manager.erl @@ -209,6 +209,14 @@ handle_call({oppress, Pid}, _From, sets:add_element(Pid, Pins) }, case find_process(Pid, Procs) of {libre, OAlloc, _OActivity} -> + %% Store 0 here. This simulates the process + %% being oppressed when there is no memory + %% available, which is sensible as it + %% encourages the process to be liberated when + %% the pin goes away, assuming there is memory + %% available. And if there isn't memory + %% available then it will stay oppressed which + %% is the right thing. Procs1 = set_process_mode(Procs, Callbacks, Pid, oppressed, {oppressed, 0}), -- cgit v1.2.1 From c14bacabe348c83f7434575a55cfd2fd3aa23e84 Mon Sep 17 00:00:00 2001 From: Marek Majkowski Date: Thu, 17 Sep 2009 15:59:45 +0100 Subject: better error messages on standard errors --- src/rabbit.erl | 17 +++++++++++++++++ src/rabbit_networking.erl | 11 ++++++++--- 2 files changed, 25 insertions(+), 3 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index ef1e0049..a54fc48e 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -110,7 +110,24 @@ rotate_logs(BinarySuffix) -> %%-------------------------------------------------------------------- +fatal(Reason) -> + io:format("~n~n"), + io:format(" [*] Startup failed: ~p~n", [Reason]), + io:format(" [*] QUITTING!~n"), + timer:sleep(100), % higher chances to flush i/o + halt(255). + start(normal, []) -> + try do_start() of + X -> X + catch + {error, Reason, Args} -> + fatal({Reason, Args}); + {error, Reason} -> + fatal(Reason) + end. + +do_start() -> {ok, SupPid} = rabbit_sup:start_link(), diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index eed21a01..f7007c61 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -101,7 +101,7 @@ check_tcp_listener_address(NamePrefix, Host, Port) -> if is_integer(Port) andalso (Port >= 0) andalso (Port =< 65535) -> ok; true -> error_logger:error_msg("invalid port ~p - not 0..65535~n", [Port]), - throw({error, invalid_port, Port}) + throw({error, {invalid_port, Port}}) end, Name = rabbit_misc:tcp_name(NamePrefix, IPAddress, Port), {IPAddress, Name}. @@ -117,7 +117,7 @@ start_ssl_listener(Host, Port, SslOpts) -> start_listener(Host, Port, Label, OnConnect) -> {IPAddress, Name} = check_tcp_listener_address(rabbit_tcp_listener_sup, Host, Port), - {ok,_} = supervisor:start_child( + case supervisor:start_child( rabbit_sup, {Name, {tcp_listener_sup, start_link, @@ -125,7 +125,12 @@ start_listener(Host, Port, Label, OnConnect) -> {?MODULE, tcp_listener_started, []}, {?MODULE, tcp_listener_stopped, []}, OnConnect, Label]}, - transient, infinity, supervisor, [tcp_listener_sup]}), + transient, infinity, supervisor, [tcp_listener_sup]}) of + {ok, _} -> ok; + {error, _Reason} -> error_logger:error_msg("failed to bind ~p to ~p:~p~n", + [Label, Host, Port]), + throw({error, {failed_to_bind, Host, Port}}) + end, ok. stop_tcp_listener(Host, Port) -> -- cgit v1.2.1 From 90251e578e84ba5ad88ff3b1f2ece8b2448e3ee4 Mon Sep 17 00:00:00 2001 From: Marek Majkowski Date: Tue, 22 Sep 2009 14:11:14 +0100 Subject: halt moved to rabbit:start/0 instead of rabbit:star/2, added magic error catcher to produce better error message --- src/rabbit.erl | 43 +++++++++++--------- src/rabbit_networking.erl | 4 +- src/rabbit_startup_error_logger.erl | 78 +++++++++++++++++++++++++++++++++++++ 3 files changed, 103 insertions(+), 22 deletions(-) create mode 100644 src/rabbit_startup_error_logger.erl diff --git a/src/rabbit.erl b/src/rabbit.erl index a54fc48e..4b330d5f 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -71,7 +71,30 @@ %%---------------------------------------------------------------------------- -start() -> +fatal(Reason) -> + io:format("~n~n"), + io:format(" [*] Startup failed: ~p~n", [Reason]), + io:format(" [*] QUITTING!~n"), + timer:sleep(100), % higher chances to flush i/o correctly + halt(255). + +start() -> + ok = error_logger:add_report_handler(rabbit_startup_error_logger, []), + R = try do_start() of + X -> X + catch + {error, TracebackReason} -> + Reason = case rabbit_startup_error_logger:get_first_error() of + {ok, ErrorReason} -> string:strip(ErrorReason); + _ -> TracebackReason + end, + fatal(Reason) + end, + terminated_ok = error_logger:delete_report_handler( + rabbit_startup_error_logger), + R. + +do_start() -> try ok = ensure_working_log_handlers(), ok = rabbit_mnesia:ensure_mnesia_dir(), @@ -110,25 +133,7 @@ rotate_logs(BinarySuffix) -> %%-------------------------------------------------------------------- -fatal(Reason) -> - io:format("~n~n"), - io:format(" [*] Startup failed: ~p~n", [Reason]), - io:format(" [*] QUITTING!~n"), - timer:sleep(100), % higher chances to flush i/o - halt(255). - start(normal, []) -> - try do_start() of - X -> X - catch - {error, Reason, Args} -> - fatal({Reason, Args}); - {error, Reason} -> - fatal(Reason) - end. - -do_start() -> - {ok, SupPid} = rabbit_sup:start_link(), print_banner(), diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index f7007c61..8507fcd5 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -127,9 +127,7 @@ start_listener(Host, Port, Label, OnConnect) -> OnConnect, Label]}, transient, infinity, supervisor, [tcp_listener_sup]}) of {ok, _} -> ok; - {error, _Reason} -> error_logger:error_msg("failed to bind ~p to ~p:~p~n", - [Label, Host, Port]), - throw({error, {failed_to_bind, Host, Port}}) + {error, Reason} -> throw({error, {failed_to_bind, Host, Port, Reason}}) end, ok. diff --git a/src/rabbit_startup_error_logger.erl b/src/rabbit_startup_error_logger.erl new file mode 100644 index 00000000..18e27885 --- /dev/null +++ b/src/rabbit_startup_error_logger.erl @@ -0,0 +1,78 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_startup_error_logger). +-include("rabbit.hrl"). +-include("rabbit_framing.hrl"). + +-behaviour(gen_event). + +-export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, + handle_info/2, get_first_error/0]). + +init([]) -> {ok, {}}. + +terminate(_Arg, _State) -> + terminated_ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +get_first_error() -> + gen_event:call(error_logger, ?MODULE, get_first_error). + +handle_call(get_first_error, State) -> + Ret = case State of + {error, Res} -> {ok, Res}; + _ -> {error} + end, + {ok, Ret, State}; + +handle_call(_Request, State) -> + {ok, not_understood, State}. + + +handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State={}) -> + case Kind of + error -> Res = string:strip( + lists:flatten(io_lib:format(Format, Data)), + both, $\n), + {ok, {error, Res}}; + _ -> {ok, State} + end; + +handle_event(_Event, State) -> + {ok, State}. + + +handle_info(_Info, State) -> + {ok, State}. + -- cgit v1.2.1 From bc25eda52a9f3dd1b6e04ced5eea8540a56f7a4e Mon Sep 17 00:00:00 2001 From: Marek Majkowski Date: Tue, 22 Sep 2009 17:35:54 +0100 Subject: removed halt(), error handling now only wraps rabbit:start/2, error_logger a bit more generic - catches and saves every error event. --- src/rabbit.erl | 52 +++++++++++++++++++------------------ src/rabbit_startup_error_logger.erl | 38 ++++++++++++++------------- 2 files changed, 47 insertions(+), 43 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 4b330d5f..b558fe4a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -70,31 +70,7 @@ -endif. %%---------------------------------------------------------------------------- - -fatal(Reason) -> - io:format("~n~n"), - io:format(" [*] Startup failed: ~p~n", [Reason]), - io:format(" [*] QUITTING!~n"), - timer:sleep(100), % higher chances to flush i/o correctly - halt(255). - -start() -> - ok = error_logger:add_report_handler(rabbit_startup_error_logger, []), - R = try do_start() of - X -> X - catch - {error, TracebackReason} -> - Reason = case rabbit_startup_error_logger:get_first_error() of - {ok, ErrorReason} -> string:strip(ErrorReason); - _ -> TracebackReason - end, - fatal(Reason) - end, - terminated_ok = error_logger:delete_report_handler( - rabbit_startup_error_logger), - R. - -do_start() -> +start() -> try ok = ensure_working_log_handlers(), ok = rabbit_mnesia:ensure_mnesia_dir(), @@ -133,7 +109,33 @@ rotate_logs(BinarySuffix) -> %%-------------------------------------------------------------------- +fatal(Reason) -> + io:format("~n~n"), + io:format(" [*] Startup error: ~p~n", [Reason]), + io:format(" [*] QUITTING!~n~n"), + timer:sleep(100). % higher chances to flush i/o correctly + +error_catcher(Callback) -> + ok = error_logger:add_report_handler(rabbit_startup_error_logger, []), + R = try Callback() of + X -> X + catch + {error, TracebackReason} -> + Reason = case rabbit_startup_error_logger:get_errors() of + {ok, []} -> TracebackReason; + {ok, ErrorReason} -> ErrorReason + end, + fatal(Reason), + throw({fatal_error}) + end, + terminated_ok = error_logger:delete_report_handler( + rabbit_startup_error_logger), + R. + start(normal, []) -> + error_catcher(fun () -> do_start() end ). + +do_start() -> {ok, SupPid} = rabbit_sup:start_link(), print_banner(), diff --git a/src/rabbit_startup_error_logger.erl b/src/rabbit_startup_error_logger.erl index 18e27885..5d5196aa 100644 --- a/src/rabbit_startup_error_logger.erl +++ b/src/rabbit_startup_error_logger.erl @@ -36,9 +36,9 @@ -behaviour(gen_event). -export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, - handle_info/2, get_first_error/0]). + handle_info/2, get_errors/0]). -init([]) -> {ok, {}}. +init([]) -> {ok, []}. terminate(_Arg, _State) -> terminated_ok. @@ -46,28 +46,30 @@ terminate(_Arg, _State) -> code_change(_OldVsn, State, _Extra) -> {ok, State}. -get_first_error() -> - gen_event:call(error_logger, ?MODULE, get_first_error). +get_errors() -> + Events = get_events(), + Errors = [string:strip(lists:flatten( + io_lib:format(Format, Data)), both, $\n) + || {Kind, Format, Data} <- Events, + Kind == error], + {ok, Errors}. -handle_call(get_first_error, State) -> - Ret = case State of - {error, Res} -> {ok, Res}; - _ -> {error} - end, - {ok, Ret, State}; +%% returns list of {Kind, Format, Data} +get_events() -> + {ok, Events} = gen_event:call(error_logger, ?MODULE, get_events), + Events. + + +handle_call(get_events, State) -> + {ok, {ok, State}, State}; handle_call(_Request, State) -> {ok, not_understood, State}. -handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State={}) -> - case Kind of - error -> Res = string:strip( - lists:flatten(io_lib:format(Format, Data)), - both, $\n), - {ok, {error, Res}}; - _ -> {ok, State} - end; +handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State) -> + Msg = {Kind, Format, Data}, + {ok, [Msg|State]}; handle_event(_Event, State) -> {ok, State}. -- cgit v1.2.1 From fcda5f22fbc9224e18f67ea493ca23a07dca7b0d Mon Sep 17 00:00:00 2001 From: Marek Majkowski Date: Mon, 28 Sep 2009 13:55:35 +0100 Subject: catch all the exceptions, instead of just the proper ones. --- src/rabbit.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index b558fe4a..68deac1a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -120,7 +120,7 @@ error_catcher(Callback) -> R = try Callback() of X -> X catch - {error, TracebackReason} -> + TracebackReason -> Reason = case rabbit_startup_error_logger:get_errors() of {ok, []} -> TracebackReason; {ok, ErrorReason} -> ErrorReason -- cgit v1.2.1 From 02369a09642d67b13f6f363585b51beb1cca1c66 Mon Sep 17 00:00:00 2001 From: Marek Majkowski Date: Mon, 28 Sep 2009 15:17:14 +0100 Subject: minor fun() enhancement --- src/rabbit.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 68deac1a..429b7072 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -133,7 +133,7 @@ error_catcher(Callback) -> R. start(normal, []) -> - error_catcher(fun () -> do_start() end ). + error_catcher(fun do_start/0). do_start() -> {ok, SupPid} = rabbit_sup:start_link(), -- cgit v1.2.1 From b258a75234458b6b5ee77bf0bdf86ef5834151de Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 30 Oct 2009 12:39:07 +0000 Subject: bool() => boolean() (just doing this here too as it's possible some people are using the head of this branch) --- src/rabbit_basic.erl | 2 +- src/rabbit_channel.erl | 2 +- src/rabbit_memory_manager.erl | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 63260669..14c655a6 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -52,7 +52,7 @@ -spec(message/5 :: (exchange_name(), routing_key(), properties_input(), binary(), guid()) -> message()). -spec(message/6 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid(), bool()) -> message()). + binary(), guid(), boolean()) -> message()). -spec(properties/1 :: (properties_input()) -> amqp_properties()). -spec(publish/4 :: (exchange_name(), routing_key(), properties_input(), binary()) -> publish_result()). diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 42097739..6afd0bc9 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -55,7 +55,7 @@ -ifdef(use_specs). -type(msg_id() :: non_neg_integer()). --type(msg() :: {queue_name(), pid(), msg_id(), bool(), message()}). +-type(msg() :: {queue_name(), pid(), msg_id(), boolean(), message()}). -spec(start_link/5 :: (channel_number(), pid(), pid(), username(), vhost()) -> pid()). diff --git a/src/rabbit_memory_manager.erl b/src/rabbit_memory_manager.erl index 1d6fdecb..8b632e7a 100644 --- a/src/rabbit_memory_manager.erl +++ b/src/rabbit_memory_manager.erl @@ -54,11 +54,11 @@ -spec(start_link/0 :: () -> ({'ok', pid()} | 'ignore' | {'error', any()})). -spec(register/5 :: (pid(), boolean(), atom(), atom(), list()) -> 'ok'). --spec(report_memory/3 :: (pid(), non_neg_integer(), bool()) -> 'ok'). +-spec(report_memory/3 :: (pid(), non_neg_integer(), boolean()) -> 'ok'). -spec(oppress/1 :: (pid()) -> 'ok'). -spec(liberate/1 :: (pid()) -> 'ok'). -spec(info/0 :: () -> [{atom(), any()}]). --spec(conserve_memory/2 :: (pid(), bool()) -> 'ok'). +-spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok'). -endif. -- cgit v1.2.1 From a4ad123c9c39921465a26326c561c73ef50e1431 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 20 Nov 2009 18:05:11 +0000 Subject: First hack. Note that whilst this does the "right" thing, there is no attempt made to avoid deadlock. The Java tests (in particular the QoS Tests) all pass. Basically, I take the longest queue length, double it. The probability of that queue being unblocked is 50% (i.e. len >= 2*Len). That 2*Len is then used against all the queues, with their own length. Thus the shorter they are, the lower their probability of being unblocked. We stop work when we guarantee that either we've woken everyone up, or we've woken up enough to guarantee that we're now reblocked. In general, this is pretty rough and ready and more like a proof of concept. Needs refinement. --- src/rabbit_amqqueue.erl | 4 +- src/rabbit_amqqueue_process.erl | 53 +++++++++++------- src/rabbit_limiter.erl | 118 +++++++++++++++++++++++++++++----------- 3 files changed, 119 insertions(+), 56 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 1a5e82d7..169c7c6d 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -100,7 +100,7 @@ 'exclusive_consume_unavailable'}). -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> 'ok'). +-spec(unblock/2 :: (pid(), pid()) -> boolean()). -spec(internal_declare/2 :: (amqqueue(), boolean()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). @@ -306,7 +306,7 @@ notify_sent(QPid, ChPid) -> gen_server2:pcast(QPid, 8, {notify_sent, ChPid}). unblock(QPid, ChPid) -> - gen_server2:pcast(QPid, 8, {unblock, ChPid}). + gen_server2:pcall(QPid, 8, {unblock, ChPid}). internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 80b7a92c..ca14c3dd 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -171,7 +171,8 @@ deliver_immediately(Message, Delivered, State = #q{q = #amqqueue{name = QName}, active_consumers = ActiveConsumers, blocked_consumers = BlockedConsumers, - next_msg_id = NextId}) -> + next_msg_id = NextId, + message_buffer = MessageBuffer}) -> ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Message]), case queue:out(ActiveConsumers) of {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, @@ -180,7 +181,8 @@ deliver_immediately(Message, Delivered, C = #cr{limiter_pid = LimiterPid, unsent_message_count = Count, unacked_messages = UAM} = ch_record(ChPid), - case rabbit_limiter:can_send(LimiterPid, self(), AckRequired) of + case rabbit_limiter:can_send(LimiterPid, self(), AckRequired, + queue:len(MessageBuffer)) of true -> rabbit_channel:deliver( ChPid, ConsumerTag, AckRequired, @@ -202,7 +204,7 @@ deliver_immediately(Message, Delivered, ActiveConsumersTail, BlockedConsumers), {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} + queue:in_r(QEntry, BlockedConsumers1)} end, {offered, AckRequired, State#q{active_consumers = NewActiveConsumers, @@ -270,24 +272,29 @@ remove_consumers(ChPid, Queue) -> move_consumers(ChPid, From, To) -> {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, queue:to_list(From)), - {queue:from_list(Kept), queue:join(To, queue:from_list(Removed))}. + {queue:from_list(Kept), queue:join(queue:from_list(Removed), To)}. -possibly_unblock(State, ChPid, Update) -> +possibly_unblock(State, ChPid, Update, Result) -> case lookup_ch(ChPid) of not_found -> + Result(false, State), State; C -> NewC = Update(C), store_ch_record(NewC), case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> {NewBlockedConsumers, NewActiveConsumers} = - move_consumers(ChPid, - State#q.blocked_consumers, - State#q.active_consumers), - run_poke_burst( - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}) + ok -> + Result(false, State), + State; + unblock -> + Result(true, State), + {NewBlockedConsumers, NewActiveConsumers} = + move_consumers(ChPid, + State#q.blocked_consumers, + State#q.active_consumers), + run_poke_burst( + State#q{active_consumers = NewActiveConsumers, + blocked_consumers = NewBlockedConsumers}) end end. @@ -733,7 +740,16 @@ handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, reply(ok, State); _ -> reply(locked, State) - end. + end; + +handle_call({unblock, ChPid}, From, State) -> + noreply( + possibly_unblock(State, ChPid, + fun (C) -> C#cr{is_limit_active = false} end, + fun (Unblocked, #q{message_buffer = MessageBuffer}) -> + gen_server2:reply(From, Unblocked andalso not + queue:is_empty(MessageBuffer)) + end)). handle_cast({deliver, Txn, Message, ChPid}, State) -> %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. @@ -777,17 +793,12 @@ handle_cast({requeue, MsgIds, ChPid}, State) -> [{Message, true} || Message <- Messages], State)) end; -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - handle_cast({notify_sent, ChPid}, State) -> noreply( possibly_unblock(State, ChPid, fun (C = #cr{unsent_message_count = Count}) -> C#cr{unsent_message_count = Count - 1} - end)); + end, fun (_, _) -> ok end)); handle_cast({limit, ChPid, LimiterPid}, State) -> noreply( @@ -803,7 +814,7 @@ handle_cast({limit, ChPid, LimiterPid}, State) -> end, NewLimited = Limited andalso LimiterPid =/= undefined, C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)). + end, fun (_, _) -> ok end)). handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index 087a9f64..4e95f37d 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -36,7 +36,7 @@ -export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2]). -export([start_link/1, shutdown/1]). --export([limit/2, can_send/3, ack/2, register/2, unregister/2]). +-export([limit/2, can_send/4, ack/2, register/2, unregister/2]). %%---------------------------------------------------------------------------- @@ -47,7 +47,8 @@ -spec(start_link/1 :: (pid()) -> pid()). -spec(shutdown/1 :: (maybe_pid()) -> 'ok'). -spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(can_send/3 :: (maybe_pid(), pid(), boolean()) -> boolean()). +-spec(can_send/4 :: (maybe_pid(), pid(), boolean(), non_neg_integer()) -> + boolean()). -spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). -spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). -spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). @@ -58,7 +59,7 @@ -record(lim, {prefetch_count = 0, ch_pid, - queues = dict:new(), % QPid -> {MonitorRef, Notify} + queues = dict:new(), % QPid -> {MonitorRef, Notify, Length} volume = 0}). %% 'Notify' is a boolean that indicates whether a queue should be %% notified of a change in the limit or volume that may allow it to @@ -85,13 +86,13 @@ limit(LimiterPid, PrefetchCount) -> %% Ask the limiter whether the queue can deliver a message without %% breaching a limit -can_send(undefined, _QPid, _AckRequired) -> +can_send(undefined, _QPid, _AckRequired, _Length) -> true; -can_send(LimiterPid, QPid, AckRequired) -> +can_send(LimiterPid, QPid, AckRequired, Length) -> rabbit_misc:with_exit_handler( fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, - infinity) end). + fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired, + Length}, infinity) end). %% Let the limiter know that the channel has received some acks from a %% consumer @@ -111,13 +112,17 @@ unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}) init([ChPid]) -> {ok, #lim{ch_pid = ChPid} }. -handle_call({can_send, QPid, AckRequired}, _From, +handle_call({can_send, QPid, AckRequired, Length}, _From, State = #lim{volume = Volume}) -> case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} + true -> + {reply, false, limit_queue(QPid, Length, State)}; + false -> + {reply, true, + update_length(QPid, Length, + State#lim{volume = if AckRequired -> Volume + 1; + true -> Volume + end})} end. handle_cast(shutdown, State) -> @@ -130,6 +135,7 @@ handle_cast({ack, Count}, State = #lim{volume = Volume}) -> NewVolume = if Volume == 0 -> 0; true -> Volume - Count end, + io:format("~p OldVolume ~p ; Count ~p ; NewVolume ~p~n", [self(), Volume, Count, NewVolume]), {noreply, maybe_notify(State, State#lim{volume = NewVolume})}; handle_cast({register, QPid}, State) -> @@ -163,37 +169,83 @@ limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> remember_queue(QPid, State = #lim{queues = Queues}) -> case dict:is_key(QPid, Queues) of false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = dict:store(QPid, {MRef, false}, Queues)}; + State#lim{queues = dict:store(QPid, {MRef, false, 0}, Queues)}; true -> State end. forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> case dict:find(QPid, Queues) of - {ok, {MRef, _}} -> + {ok, {MRef, _, _}} -> true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), + unblock(QPid, ChPid), State#lim{queues = dict:erase(QPid, Queues)}; error -> State end. -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, +limit_queue(QPid, Length, State = #lim{queues = Queues}) -> + UpdateFun = fun ({MRef, _, _}) -> {MRef, true, Length} end, State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - dict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], dict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, +update_length(QPid, Length, State = #lim{queues = Queues}) -> + UpdateFun = fun ({MRef, Notify, _}) -> {MRef, Notify, Length} end, + State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. + +notify_queues(State = #lim{ch_pid = ChPid, queues = Queues, + prefetch_count = PrefetchCount, volume = Volume}) -> + QList = + dict:fold(fun (_QPid, {_, false, _}, Acc) -> Acc; + (QPid, {_MRef, true, Length}, L) -> + gb_trees:enter(Length, QPid, L) + end, gb_trees:empty(), Queues), + NewQueues = + case gb_trees:size(QList) of + 0 -> Queues; + QCount -> + Capacity = PrefetchCount - Volume, + {BiggestLength, _QPid} = gb_trees:largest(QList), + BiggestLength1 = lists:max([2*BiggestLength, 1]), + %% try to tell enough queues that we guarantee we'll get + %% blocked again + {Capacity1, NewQueues1} = + unblock_queue(ChPid, BiggestLength1, Capacity, QList, + Queues), + case 0 == Capacity1 of + true -> NewQueues1; + false -> %% just tell everyone + {_Capacity2, NewQueues2} = + unblock_queue(ChPid, 1, QCount, QList, NewQueues1), + NewQueues2 + end + end, State#lim{queues = NewQueues}. + +unblock_queue(_ChPid, _L, 0, _QList, Queues) -> + {0, Queues}; +unblock_queue(ChPid, L, QueueCount, QList, Queues) -> + UpdateFunUnBlock = fun ({MRef, _, Length}) -> {MRef, false, Length} end, + {Length, QPid, QList1} = gb_trees:take_largest(QList), + {_MRef, Blocked, Length} = dict:fetch(QPid, Queues), + {QueueCount1, Queues1} = + case Blocked of + false -> + {QueueCount, Queues}; + true -> + %% if 0 == Length, and L == 1, we still need to inform the q + case Length + 1 >= random:uniform(L) of + true -> case unblock(QPid, ChPid) of + true -> {QueueCount - 1, + dict:update(QPid, UpdateFunUnBlock, Queues)}; + false -> {QueueCount, Queues} + end; + false -> {QueueCount, Queues} + end + end, + case gb_trees:is_empty(QList1) of + true -> {QueueCount1, Queues1}; + false -> unblock_queue(ChPid, L, QueueCount1, QList1, Queues1) + end. + +unblock(QPid, ChPid) -> + rabbit_misc:with_exit_handler( + fun () -> false end, + fun () -> rabbit_amqqueue:unblock(QPid, ChPid) end). -- cgit v1.2.1 From ffb21cd3e869ffb52dba5a9c091468be6bfb9eb9 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 23 Nov 2009 10:03:15 +0000 Subject: And now it can't deadlock. Beautiful. --- src/rabbit_amqqueue.erl | 11 +++++++---- src/rabbit_amqqueue_process.erl | 8 +++++++- src/rabbit_limiter.erl | 33 ++++++++++++++++++--------------- 3 files changed, 32 insertions(+), 20 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 169c7c6d..20742427 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -39,7 +39,7 @@ -export([list/1, info/1, info/2, info_all/1, info_all/2]). -export([claim_queue/2]). -export([basic_get/3, basic_consume/8, basic_cancel/4]). --export([notify_sent/2, unblock/2]). +-export([notify_sent/2, unblock/3]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). @@ -100,7 +100,7 @@ 'exclusive_consume_unavailable'}). -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> boolean()). +-spec(unblock/3 :: (('sync' | 'async'), pid(), pid()) -> boolean()). -spec(internal_declare/2 :: (amqqueue(), boolean()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). @@ -305,8 +305,11 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> notify_sent(QPid, ChPid) -> gen_server2:pcast(QPid, 8, {notify_sent, ChPid}). -unblock(QPid, ChPid) -> - gen_server2:pcall(QPid, 8, {unblock, ChPid}). +unblock(sync, QPid, ChPid) -> + gen_server2:pcall(QPid, 8, {unblock, ChPid}, 100); +unblock(async, QPid, ChPid) -> + ok = gen_server2:pcast(QPid, 8, {unblock, ChPid}), + false. internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index ca14c3dd..cb53f4e0 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -814,7 +814,13 @@ handle_cast({limit, ChPid, LimiterPid}, State) -> end, NewLimited = Limited andalso LimiterPid =/= undefined, C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end, fun (_, _) -> ok end)). + end, fun (_, _) -> ok end)); + +handle_cast({unblock, ChPid}, State) -> + noreply( + possibly_unblock(State, ChPid, + fun (C) -> C#cr{is_limit_active = false} end, + fun (_, _) -> ok end)). handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, State = #q{owner = {DownPid, MonitorRef}}) -> diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index 4e95f37d..413658d8 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -135,7 +135,6 @@ handle_cast({ack, Count}, State = #lim{volume = Volume}) -> NewVolume = if Volume == 0 -> 0; true -> Volume - Count end, - io:format("~p OldVolume ~p ; Count ~p ; NewVolume ~p~n", [self(), Volume, Count, NewVolume]), {noreply, maybe_notify(State, State#lim{volume = NewVolume})}; handle_cast({register, QPid}, State) -> @@ -177,7 +176,7 @@ forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> case dict:find(QPid, Queues) of {ok, {MRef, _, _}} -> true = erlang:demonitor(MRef), - unblock(QPid, ChPid), + unblock(async, QPid, ChPid), State#lim{queues = dict:erase(QPid, Queues)}; error -> State end. @@ -207,22 +206,22 @@ notify_queues(State = #lim{ch_pid = ChPid, queues = Queues, %% try to tell enough queues that we guarantee we'll get %% blocked again {Capacity1, NewQueues1} = - unblock_queue(ChPid, BiggestLength1, Capacity, QList, + unblock_queue(sync, ChPid, BiggestLength1, Capacity, QList, Queues), case 0 == Capacity1 of true -> NewQueues1; false -> %% just tell everyone {_Capacity2, NewQueues2} = - unblock_queue(ChPid, 1, QCount, QList, NewQueues1), + unblock_queue(async, ChPid, 1, QCount, QList, + NewQueues1), NewQueues2 end end, State#lim{queues = NewQueues}. -unblock_queue(_ChPid, _L, 0, _QList, Queues) -> +unblock_queue(_Mode, _ChPid, _L, 0, _QList, Queues) -> {0, Queues}; -unblock_queue(ChPid, L, QueueCount, QList, Queues) -> - UpdateFunUnBlock = fun ({MRef, _, Length}) -> {MRef, false, Length} end, +unblock_queue(Mode, ChPid, L, QueueCount, QList, Queues) -> {Length, QPid, QList1} = gb_trees:take_largest(QList), {_MRef, Blocked, Length} = dict:fetch(QPid, Queues), {QueueCount1, Queues1} = @@ -232,20 +231,24 @@ unblock_queue(ChPid, L, QueueCount, QList, Queues) -> true -> %% if 0 == Length, and L == 1, we still need to inform the q case Length + 1 >= random:uniform(L) of - true -> case unblock(QPid, ChPid) of - true -> {QueueCount - 1, - dict:update(QPid, UpdateFunUnBlock, Queues)}; - false -> {QueueCount, Queues} - end; + true -> + case unblock(Mode, QPid, ChPid) of + true -> + {QueueCount - 1, + dict:update(QPid, fun unblock_fun/1, Queues)}; + false -> {QueueCount, Queues} + end; false -> {QueueCount, Queues} end end, case gb_trees:is_empty(QList1) of true -> {QueueCount1, Queues1}; - false -> unblock_queue(ChPid, L, QueueCount1, QList1, Queues1) + false -> unblock_queue(Mode, ChPid, L, QueueCount1, QList1, Queues1) end. -unblock(QPid, ChPid) -> +unblock(Mode, QPid, ChPid) -> rabbit_misc:with_exit_handler( fun () -> false end, - fun () -> rabbit_amqqueue:unblock(QPid, ChPid) end). + fun () -> rabbit_amqqueue:unblock(Mode, QPid, ChPid) end). + +unblock_fun({MRef, _, Length}) -> {MRef, false, Length}. -- cgit v1.2.1 From 686d6ab1e1996a0ecc6aec85c150f155a1aa1a58 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 24 Nov 2009 11:40:58 +0000 Subject: All the low hanging fruit from the QA notes --- src/rabbit_amqqueue.erl | 14 +++++++++----- src/rabbit_amqqueue_process.erl | 11 +++++++++-- src/rabbit_limiter.erl | 6 ++---- 3 files changed, 20 insertions(+), 11 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 20742427..c53ec714 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -39,7 +39,7 @@ -export([list/1, info/1, info/2, info_all/1, info_all/2]). -export([claim_queue/2]). -export([basic_get/3, basic_consume/8, basic_cancel/4]). --export([notify_sent/2, unblock/3]). +-export([notify_sent/2, unblock_async/2, unblock_sync/2]). -export([commit_all/2, rollback_all/2, notify_down_all/2, limit_all/3]). -export([on_node_down/1]). @@ -100,7 +100,8 @@ 'exclusive_consume_unavailable'}). -spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/3 :: (('sync' | 'async'), pid(), pid()) -> boolean()). +-spec(unblock_async/2 :: (pid(), pid()) -> boolean()). +-spec(unblock_sync/2 :: (pid(), pid()) -> boolean()). -spec(internal_declare/2 :: (amqqueue(), boolean()) -> amqqueue()). -spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). -spec(on_node_down/1 :: (erlang_node()) -> 'ok'). @@ -305,12 +306,15 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> notify_sent(QPid, ChPid) -> gen_server2:pcast(QPid, 8, {notify_sent, ChPid}). -unblock(sync, QPid, ChPid) -> - gen_server2:pcall(QPid, 8, {unblock, ChPid}, 100); -unblock(async, QPid, ChPid) -> +unblock_async(QPid, ChPid) -> ok = gen_server2:pcast(QPid, 8, {unblock, ChPid}), false. +unblock_sync(QPid, ChPid) -> + rabbit_misc:with_exit_handler( + fun () -> false end, + fun () -> gen_server2:pcall(QPid, 8, {unblock, ChPid}, 100) end). + internal_delete(QueueName) -> rabbit_misc:execute_mnesia_transaction( fun () -> diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index cb53f4e0..d917a4d7 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -204,7 +204,7 @@ deliver_immediately(Message, Delivered, ActiveConsumersTail, BlockedConsumers), {ActiveConsumers1, - queue:in_r(QEntry, BlockedConsumers1)} + queue:in(QEntry, BlockedConsumers1)} end, {offered, AckRequired, State#q{active_consumers = NewActiveConsumers, @@ -272,7 +272,7 @@ remove_consumers(ChPid, Queue) -> move_consumers(ChPid, From, To) -> {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, queue:to_list(From)), - {queue:from_list(Kept), queue:join(queue:from_list(Removed), To)}. + {queue:from_list(Kept), queue:join(To, queue:from_list(Removed))}. possibly_unblock(State, ChPid, Update, Result) -> case lookup_ch(ChPid) of @@ -743,6 +743,13 @@ handle_call({claim_queue, ReaderPid}, _From, State = #q{owner = Owner, end; handle_call({unblock, ChPid}, From, State) -> + %% If we have been unblocked and if there are messages in the + %% queue then we can guarantee that our consumer will get some of + %% those messages. This is because if there were active consumers + %% then the queue would be empty (major invariant), thus if the + %% queue is not empty then we must be the only now-active + %% consumer. + %% However, this may be wrong in the future, eg with TTL. noreply( possibly_unblock(State, ChPid, fun (C) -> C#cr{is_limit_active = false} end, diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index 413658d8..2c61feb9 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -246,9 +246,7 @@ unblock_queue(Mode, ChPid, L, QueueCount, QList, Queues) -> false -> unblock_queue(Mode, ChPid, L, QueueCount1, QList1, Queues1) end. -unblock(Mode, QPid, ChPid) -> - rabbit_misc:with_exit_handler( - fun () -> false end, - fun () -> rabbit_amqqueue:unblock(Mode, QPid, ChPid) end). +unblock(sync, QPid, ChPid) -> rabbit_amqqueue:unblock_sync(QPid, ChPid); +unblock(async, QPid, ChPid) -> rabbit_amqqueue:unblock_async(QPid, ChPid). unblock_fun({MRef, _, Length}) -> {MRef, false, Length}. -- cgit v1.2.1 From e23d31dae5eeaf15f62ce04f49b54316368d1d5e Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 24 Nov 2009 15:14:21 +0000 Subject: Well, there's been a reorganisation of the algorithm. It's an approximation of what we really want, but with the advantage that we don't need to build a new data structure, but the disadvantage that there may be too many calls to random:uniform. However, it does it in one pass (well, max 2 passes) of the list of queues, instead of N. For massive numbers of queues, this'll actually be better as the cost of manipulating a huge data structure will be higher than the additional calls to random:uniform. The QoS fairness tests pass randomly. --- src/rabbit_limiter.erl | 64 ++++++++++++++++++++++++++++---------------------- 1 file changed, 36 insertions(+), 28 deletions(-) diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index 2c61feb9..2b5298f5 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -189,48 +189,55 @@ update_length(QPid, Length, State = #lim{queues = Queues}) -> UpdateFun = fun ({MRef, Notify, _}) -> {MRef, Notify, Length} end, State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. +is_zero_num(0) -> 0; +is_zero_num(_) -> 1. + notify_queues(State = #lim{ch_pid = ChPid, queues = Queues, prefetch_count = PrefetchCount, volume = Volume}) -> - QList = + {QTree, LengthSum, NonZeroQCount} = dict:fold(fun (_QPid, {_, false, _}, Acc) -> Acc; - (QPid, {_MRef, true, Length}, L) -> - gb_trees:enter(Length, QPid, L) - end, gb_trees:empty(), Queues), - NewQueues = - case gb_trees:size(QList) of + (QPid, {_MRef, true, Length}, {Tree, Sum, NZQCount}) -> + Length1 = lists:max([1, Length]), + {gb_trees:enter(Length, QPid, Tree), Length1, + NZQCount + is_zero_num(Length)} + end, {gb_trees:empty(), 0, 0}, Queues), + Queues1 = + case gb_trees:size(QTree) of 0 -> Queues; QCount -> Capacity = PrefetchCount - Volume, - {BiggestLength, _QPid} = gb_trees:largest(QList), - BiggestLength1 = lists:max([2*BiggestLength, 1]), - %% try to tell enough queues that we guarantee we'll get - %% blocked again - {Capacity1, NewQueues1} = - unblock_queue(sync, ChPid, BiggestLength1, Capacity, QList, - Queues), - case 0 == Capacity1 of - true -> NewQueues1; - false -> %% just tell everyone - {_Capacity2, NewQueues2} = - unblock_queue(async, ChPid, 1, QCount, QList, - NewQueues1), - NewQueues2 + case Capacity >= NonZeroQCount of + true -> unblock_all(ChPid, QCount, QTree, Queues); + false -> + %% try to tell enough queues that we guarantee + %% we'll get blocked again + {Capacity1, Queues2} = + unblock_queues( + sync, ChPid, LengthSum, Capacity, QTree, Queues), + case 0 == Capacity1 of + true -> Queues2; + false -> %% just tell everyone + unblock_all(ChPid, QCount, QTree, Queues2) + end end end, - State#lim{queues = NewQueues}. + State#lim{queues = Queues1}. + +unblock_all(ChPid, QCount, QTree, Queues) -> + {_Capacity2, Queues1} = + unblock_queues(async, ChPid, 1, QCount, QTree, Queues), + Queues1. -unblock_queue(_Mode, _ChPid, _L, 0, _QList, Queues) -> +unblock_queues(_Mode, _ChPid, _L, 0, _QList, Queues) -> {0, Queues}; -unblock_queue(Mode, ChPid, L, QueueCount, QList, Queues) -> +unblock_queues(Mode, ChPid, L, QueueCount, QList, Queues) -> {Length, QPid, QList1} = gb_trees:take_largest(QList), {_MRef, Blocked, Length} = dict:fetch(QPid, Queues), {QueueCount1, Queues1} = case Blocked of - false -> - {QueueCount, Queues}; + false -> {QueueCount, Queues}; true -> - %% if 0 == Length, and L == 1, we still need to inform the q - case Length + 1 >= random:uniform(L) of + case 1 >= L orelse Length >= random:uniform(L) of true -> case unblock(Mode, QPid, ChPid) of true -> @@ -243,7 +250,8 @@ unblock_queue(Mode, ChPid, L, QueueCount, QList, Queues) -> end, case gb_trees:is_empty(QList1) of true -> {QueueCount1, Queues1}; - false -> unblock_queue(Mode, ChPid, L, QueueCount1, QList1, Queues1) + false -> unblock_queues(Mode, ChPid, L - Length, QueueCount1, QList1, + Queues1) end. unblock(sync, QPid, ChPid) -> rabbit_amqqueue:unblock_sync(QPid, ChPid); -- cgit v1.2.1 From a19f07a6ca20cc53ae3cc488499f8d2ee468939e Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 24 Nov 2009 15:30:13 +0000 Subject: Don't bother working through a bunch of queues which have zero length. Of course when being called through unblock_all, we really do need to tell everyone. --- src/rabbit_limiter.erl | 37 +++++++++++++++++++++---------------- 1 file changed, 21 insertions(+), 16 deletions(-) diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index 2b5298f5..ef64207a 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -233,25 +233,30 @@ unblock_queues(_Mode, _ChPid, _L, 0, _QList, Queues) -> unblock_queues(Mode, ChPid, L, QueueCount, QList, Queues) -> {Length, QPid, QList1} = gb_trees:take_largest(QList), {_MRef, Blocked, Length} = dict:fetch(QPid, Queues), - {QueueCount1, Queues1} = - case Blocked of - false -> {QueueCount, Queues}; - true -> - case 1 >= L orelse Length >= random:uniform(L) of + case Length == 0 andalso Mode == sync of + true -> {QueueCount, Queues}; + false -> + {QueueCount1, Queues1} = + case Blocked of + false -> {QueueCount, Queues}; true -> - case unblock(Mode, QPid, ChPid) of + case 1 >= L orelse Length >= random:uniform(L) of true -> - {QueueCount - 1, - dict:update(QPid, fun unblock_fun/1, Queues)}; + case unblock(Mode, QPid, ChPid) of + true -> + {QueueCount - 1, + dict:update( + QPid, fun unblock_fun/1, Queues)}; + false -> {QueueCount, Queues} + end; false -> {QueueCount, Queues} - end; - false -> {QueueCount, Queues} - end - end, - case gb_trees:is_empty(QList1) of - true -> {QueueCount1, Queues1}; - false -> unblock_queues(Mode, ChPid, L - Length, QueueCount1, QList1, - Queues1) + end + end, + case gb_trees:is_empty(QList1) of + true -> {QueueCount1, Queues1}; + false -> unblock_queues(Mode, ChPid, L - Length, QueueCount1, + QList1, Queues1) + end end. unblock(sync, QPid, ChPid) -> rabbit_amqqueue:unblock_sync(QPid, ChPid); -- cgit v1.2.1 From b4442772638bac8c52282aff1c4acc635498bbb5 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 24 Nov 2009 16:14:09 +0000 Subject: inability to do maths --- src/rabbit_limiter.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index ef64207a..71ae5e35 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -197,8 +197,8 @@ notify_queues(State = #lim{ch_pid = ChPid, queues = Queues, {QTree, LengthSum, NonZeroQCount} = dict:fold(fun (_QPid, {_, false, _}, Acc) -> Acc; (QPid, {_MRef, true, Length}, {Tree, Sum, NZQCount}) -> - Length1 = lists:max([1, Length]), - {gb_trees:enter(Length, QPid, Tree), Length1, + Sum1 = Sum + lists:max([1, Length]), + {gb_trees:enter(Length, QPid, Tree), Sum1, NZQCount + is_zero_num(Length)} end, {gb_trees:empty(), 0, 0}, Queues), Queues1 = -- cgit v1.2.1 From 6454ae58d801d643af0b45bb644f9bce9ae6e83d Mon Sep 17 00:00:00 2001 From: David Wragg Date: Fri, 18 Dec 2009 11:34:43 +0000 Subject: Introduce a Makefile to produce the macports artifacts The checksums in the portfile are automatically updated, and the relevant scripts are copied across from packaging/common. However, due to differences in the options supported by su in Linux and OSX, the scripts don't actually work for OSX at this point. --- packaging/macports/Makefile | 29 +++++ packaging/macports/Portfile.in | 122 +++++++++++++++++++++ packaging/macports/net/rabbitmq-server/Portfile | 122 --------------------- .../patch-org.macports.rabbitmq-server.plist.diff | 10 -- .../files/rabbitmq-asroot-script-wrapper | 12 -- .../rabbitmq-server/files/rabbitmq-script-wrapper | 15 --- .../patch-org.macports.rabbitmq-server.plist.diff | 10 ++ 7 files changed, 161 insertions(+), 159 deletions(-) create mode 100644 packaging/macports/Makefile create mode 100644 packaging/macports/Portfile.in delete mode 100644 packaging/macports/net/rabbitmq-server/Portfile delete mode 100644 packaging/macports/net/rabbitmq-server/files/patch-org.macports.rabbitmq-server.plist.diff delete mode 100644 packaging/macports/net/rabbitmq-server/files/rabbitmq-asroot-script-wrapper delete mode 100644 packaging/macports/net/rabbitmq-server/files/rabbitmq-script-wrapper create mode 100644 packaging/macports/patch-org.macports.rabbitmq-server.plist.diff diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile new file mode 100644 index 00000000..49eb91b7 --- /dev/null +++ b/packaging/macports/Makefile @@ -0,0 +1,29 @@ +TARBALL_DIR=../../dist +TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) +COMMON_DIR=../common +VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') + +# The URL at which things really get deployed +REAL_WEB_URL=http://www.rabbitmq.com/ + +DEST=macports/net/rabbitmq-server + +dirs: + mkdir -p $(DEST)/files + +$(DEST)/Portfile: Portfile.in + for algo in md5 sha1 rmd160 ; do \ + checksum=$$(openssl $$algo $(TARBALL_DIR)/$(TARBALL) | awk '{print $$NF}') ; \ + echo "s|@$$algo@|$$checksum|g" ; \ + done >checksums.sed + sed -e "s|@VERSION@|$(VERSION)|g;s|@BASE_URL@|$(REAL_WEB_URL)|g" \ + -f checksums.sed <$^ >$@ + +macports: dirs $(DEST)/Portfile + for f in rabbitmq-asroot-script-wrapper rabbitmq-script-wrapper ; do \ + cp $(COMMON_DIR)/$$f $(DEST)/files ; \ + done + cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files + +clean: + rm -rf $(DEST) checksums.sed diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in new file mode 100644 index 00000000..12b9dfd3 --- /dev/null +++ b/packaging/macports/Portfile.in @@ -0,0 +1,122 @@ +# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 +# $Id$ + +PortSystem 1.0 +name rabbitmq-server +version @VERSION@ +revision 0 +categories net +maintainers tonyg@rabbitmq.com +platforms darwin +description The RabbitMQ AMQP Server +long_description \ + RabbitMQ is an implementation of AMQP, the emerging standard for \ + high performance enterprise messaging. The RabbitMQ server is a \ + robust and scalable implementation of an AMQP broker. + + +homepage @BASE_URL@ +master_sites @BASE_URL@releases/rabbitmq-server/v${version}/ + +checksums \ + md5 @md5@ \ + sha1 @sha1@ \ + rmd160 @rmd160@ + +depends_build port:erlang +depends_run port:erlang + +platform darwin 7 { + depends_build-append port:py25-simplejson + build.args PYTHON=${prefix}/bin/python2.5 +} +platform darwin 8 { + depends_build-append port:py25-simplejson + build.args PYTHON=${prefix}/bin/python2.5 +} +platform darwin 9 { + depends_build-append port:py25-simplejson + build.args PYTHON=${prefix}/bin/python2.5 +} +# no need for simplejson on Snow Leopard or higher + + +set serveruser rabbitmq +set servergroup rabbitmq +set serverhome ${prefix}/var/lib/rabbitmq +set logdir ${prefix}/var/log/rabbitmq +set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia +set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server +set sbindir ${destroot}${prefix}/lib/rabbitmq/bin +set wrappersbin ${destroot}${prefix}/sbin +set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin + +use_configure no + +use_parallel_build yes + +destroot.destdir \ + TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ + SBIN_DIR=${sbindir} \ + MAN_DIR=${destroot}${prefix}/share/man + +destroot.keepdirs \ + ${destroot}${logdir} \ + ${destroot}${mnesiadbdir} + +pre-destroot { + addgroup ${servergroup} + adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} +} + +post-destroot { + xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} + xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} + xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} + + reinplace -E "s:(/etc/rabbitmq/rabbitmq.conf):${prefix}\\1:g" \ + ${realsbin}/rabbitmq-env + reinplace -E "s:(CLUSTER_CONFIG_FILE)=/:\\1=${prefix}/:" \ + ${realsbin}/rabbitmq-multi \ + ${realsbin}/rabbitmq-server \ + ${realsbin}/rabbitmqctl + reinplace -E "s:(LOG_BASE)=/:\\1=${prefix}/:" \ + ${realsbin}/rabbitmq-multi \ + ${realsbin}/rabbitmq-server \ + ${realsbin}/rabbitmqctl + reinplace -E "s:(MNESIA_BASE)=/:\\1=${prefix}/:" \ + ${realsbin}/rabbitmq-multi \ + ${realsbin}/rabbitmq-server \ + ${realsbin}/rabbitmqctl + reinplace -E "s:(PIDS_FILE)=/:\\1=${prefix}/:" \ + ${realsbin}/rabbitmq-multi \ + ${realsbin}/rabbitmq-server \ + ${realsbin}/rabbitmqctl + + xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ + ${wrappersbin}/rabbitmq-multi + xinstall -m 555 ${filespath}/rabbitmq-asroot-script-wrapper \ + ${wrappersbin}/rabbitmq-activate-plugins + + reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ + ${wrappersbin}/rabbitmq-multi + reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ + ${wrappersbin}/rabbitmq-multi + reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ + ${wrappersbin}/rabbitmq-activate-plugins + reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ + ${wrappersbin}/rabbitmq-activate-plugins + file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmq-server + file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmqctl + file copy ${wrappersbin}/rabbitmq-activate-plugins ${wrappersbin}/rabbitmq-deactivate-plugins +} + +pre-install { + system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" +} + +startupitem.create yes +startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" +startupitem.start "rabbitmq-server 2>&1" +startupitem.stop "rabbitmqctl stop 2>&1" +startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/net/rabbitmq-server/Portfile b/packaging/macports/net/rabbitmq-server/Portfile deleted file mode 100644 index 739f99d0..00000000 --- a/packaging/macports/net/rabbitmq-server/Portfile +++ /dev/null @@ -1,122 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version 1.7.0 -revision 0 -categories net -maintainers tonyg@rabbitmq.com -platforms darwin -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage http://www.rabbitmq.com/ -master_sites http://www.rabbitmq.com/releases/rabbitmq-server/v${version}/ - -checksums \ - md5 4505ca0fd8718439bd6f5e2af2379e56 \ - sha1 84fb86d403057bb808c1b51deee0c1fca3bf7bef \ - rmd160 092f90946825cc3eb277019805e24db637a559f4 - -depends_build port:erlang -depends_run port:erlang - -platform darwin 7 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -platform darwin 8 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -platform darwin 9 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -# no need for simplejson on Snow Leopard or higher - - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin -set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin - -use_configure no - -use_parallel_build yes - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq.conf):${prefix}\\1:g" \ - ${realsbin}/rabbitmq-env - reinplace -E "s:(CLUSTER_CONFIG_FILE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(LOG_BASE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(MNESIA_BASE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(PIDS_FILE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-multi - xinstall -m 555 ${filespath}/rabbitmq-asroot-script-wrapper \ - ${wrappersbin}/rabbitmq-activate-plugins - - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-activate-plugins - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-activate-plugins - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmqctl - file copy ${wrappersbin}/rabbitmq-activate-plugins ${wrappersbin}/rabbitmq-deactivate-plugins -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/net/rabbitmq-server/files/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/net/rabbitmq-server/files/patch-org.macports.rabbitmq-server.plist.diff deleted file mode 100644 index 45b49496..00000000 --- a/packaging/macports/net/rabbitmq-server/files/patch-org.macports.rabbitmq-server.plist.diff +++ /dev/null @@ -1,10 +0,0 @@ ---- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 -+++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 -@@ -22,6 +22,7 @@ - ; - --pid=none - -+UserNamerabbitmq - Debug - Disabled - OnDemand diff --git a/packaging/macports/net/rabbitmq-server/files/rabbitmq-asroot-script-wrapper b/packaging/macports/net/rabbitmq-server/files/rabbitmq-asroot-script-wrapper deleted file mode 100644 index c4488dcb..00000000 --- a/packaging/macports/net/rabbitmq-server/files/rabbitmq-asroot-script-wrapper +++ /dev/null @@ -1,12 +0,0 @@ -#!/bin/bash -cd /var/lib/rabbitmq - -SCRIPT=`basename $0` - -if [ `id -u` = 0 ] ; then - /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -else - echo -e "\nOnly root should run ${SCRIPT}\n" - exit 1 -fi - diff --git a/packaging/macports/net/rabbitmq-server/files/rabbitmq-script-wrapper b/packaging/macports/net/rabbitmq-server/files/rabbitmq-script-wrapper deleted file mode 100644 index 80cb7bd5..00000000 --- a/packaging/macports/net/rabbitmq-server/files/rabbitmq-script-wrapper +++ /dev/null @@ -1,15 +0,0 @@ -#!/bin/bash -cd /var/lib/rabbitmq - -SCRIPT=`basename $0` - -if [ `id -u` = 0 ] ; then - sudo -u rabbitmq -H /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -elif [ `id -u` = `id -u rabbitmq` ] ; then - /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -else - /usr/lib/rabbitmq/bin/${SCRIPT} - echo -e "\nOnly root or rabbitmq should run ${SCRIPT}\n" - exit 1 -fi - diff --git a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff new file mode 100644 index 00000000..45b49496 --- /dev/null +++ b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff @@ -0,0 +1,10 @@ +--- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 ++++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 +@@ -22,6 +22,7 @@ + ; + --pid=none + ++UserNamerabbitmq + Debug + Disabled + OnDemand -- cgit v1.2.1 From 23baa398a5a50463ec8eee525f728902e7157d14 Mon Sep 17 00:00:00 2001 From: David Wragg Date: Fri, 18 Dec 2009 11:44:31 +0000 Subject: Templatize rabbitmq-script-wrapper so that it works under OSX --- packaging/RPMS/Fedora/Makefile | 2 ++ packaging/common/rabbitmq-script-wrapper | 2 +- packaging/debs/Debian/Makefile | 2 ++ packaging/macports/Makefile | 2 ++ 4 files changed, 7 insertions(+), 1 deletion(-) diff --git a/packaging/RPMS/Fedora/Makefile b/packaging/RPMS/Fedora/Makefile index fa2844fd..bc5b58ca 100644 --- a/packaging/RPMS/Fedora/Makefile +++ b/packaging/RPMS/Fedora/Makefile @@ -34,6 +34,8 @@ prepare: -e 's|^DEFAULTS_FILE=.*$$|DEFAULTS_FILE=/etc/sysconfig/rabbitmq|' \ -e 's|^LOCK_FILE=.*$$|LOCK_FILE=/var/lock/subsys/$$NAME|' \ SOURCES/rabbitmq-server.init + sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ + SOURCES/rabbitmq-script-wrapper cp rabbitmq-server.logrotate SOURCES/rabbitmq-server.logrotate server: prepare diff --git a/packaging/common/rabbitmq-script-wrapper b/packaging/common/rabbitmq-script-wrapper index dfb714f1..f66f8e59 100644 --- a/packaging/common/rabbitmq-script-wrapper +++ b/packaging/common/rabbitmq-script-wrapper @@ -45,7 +45,7 @@ cd /var/lib/rabbitmq SCRIPT=`basename $0` if [ `id -u` = 0 ] ; then - su rabbitmq -s /bin/sh -c "/usr/lib/rabbitmq/bin/${SCRIPT} ${CMDLINE}" + @SU_RABBITMQ_SH_C@ "/usr/lib/rabbitmq/bin/${SCRIPT} ${CMDLINE}" elif [ `id -u` = `id -u rabbitmq` ] ; then /usr/lib/rabbitmq/bin/${SCRIPT} "$@" else diff --git a/packaging/debs/Debian/Makefile b/packaging/debs/Debian/Makefile index dafaf9ce..ab05f732 100644 --- a/packaging/debs/Debian/Makefile +++ b/packaging/debs/Debian/Makefile @@ -26,6 +26,8 @@ package: clean -e 's|^DEFAULTS_FILE=.*$$|DEFAULTS_FILE=/etc/default/rabbitmq|' \ -e 's|^LOCK_FILE=.*$$|LOCK_FILE=|' \ $(UNPACKED_DIR)/debian/rabbitmq-server.init + sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ + $(UNPACKED_DIR)/debian/rabbitmq-script-wrapper chmod a+x $(UNPACKED_DIR)/debian/rules UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) cd $(UNPACKED_DIR); GNUPGHOME=$(GNUPG_PATH)/.gnupg dpkg-buildpackage -rfakeroot $(SIGNING) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile index 49eb91b7..af7891bd 100644 --- a/packaging/macports/Makefile +++ b/packaging/macports/Makefile @@ -23,6 +23,8 @@ macports: dirs $(DEST)/Portfile for f in rabbitmq-asroot-script-wrapper rabbitmq-script-wrapper ; do \ cp $(COMMON_DIR)/$$f $(DEST)/files ; \ done + sed -i -e 's|@SU_RABBITMQ_SH_C@|sudo -u rabbitmq -H /bin/sh -c|' \ + $(DEST)/files/rabbitmq-script-wrapper cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files clean: -- cgit v1.2.1 From dd88e9d8e0ef22b246a16c6af7f0f953f56b3aa1 Mon Sep 17 00:00:00 2001 From: David Wragg Date: Fri, 18 Dec 2009 11:44:32 +0000 Subject: Generate the macports index files by sshing over to an OSX box --- packaging/macports/Makefile | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile index af7891bd..c629ce2f 100644 --- a/packaging/macports/Makefile +++ b/packaging/macports/Makefile @@ -6,7 +6,16 @@ VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g # The URL at which things really get deployed REAL_WEB_URL=http://www.rabbitmq.com/ -DEST=macports/net/rabbitmq-server +# The user@host for an OSX machine with macports installed, which is +# used to generate the macports index files. That step will be +# skipped if this variable is not set. If you do set it, you might +# also want to set SSH_OPTS, which allows adding ssh options, e.g. to +# specify a key that will get into the OSX machine without a +# passphrase. +MACPORTS_USERHOST= + +MACPORTS_DIR=macports +DEST=$(MACPORTS_DIR)/net/rabbitmq-server dirs: mkdir -p $(DEST)/files @@ -27,5 +36,19 @@ macports: dirs $(DEST)/Portfile $(DEST)/files/rabbitmq-script-wrapper cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files +macports_index: + if [ -n "$(MACPORTS_USERHOST)" ] ; then \ + tar cf - -C $(MACPORTS_DIR) . | ssh $(SSH_OPTS) lshift@macrabbit ' \ + d="/tmp/mkportindex.$$$$" ; \ + mkdir $$d \ + && cd $$d \ + && tar xf - \ + && /opt/local/bin/portindex >/dev/null \ + && tar cf - PortIndex* \ + && cd \ + && rm -rf $$d' \ + | tar xf - -C $(MACPORTS_DIR) ; \ + fi + clean: rm -rf $(DEST) checksums.sed -- cgit v1.2.1 From 3df3c2bd2065d0d1e7246400e25bc28cfc16c322 Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Thu, 7 Jan 2010 18:38:44 +0000 Subject: Ugly, not-quite-working two-phase exchange creation. Exchange creation goes through two steps: create the record if there's not one already, then mark it complete. The rationale is that this lets the init hook run after the race to create it is won, but before the effects are visible to anything else. Something similar needs to be done for bindings. --- include/rabbit.hrl | 10 ++++--- src/rabbit_exchange.erl | 77 ++++++++++++++++++++++++++++++++++--------------- 2 files changed, 60 insertions(+), 27 deletions(-) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 4b157cbc..d9139a67 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -49,7 +49,7 @@ -record(resource, {virtual_host, kind, name}). --record(exchange, {name, type, durable, auto_delete, arguments}). +-record(exchange, {name, type, durable, auto_delete, arguments, complete = false}). -record(amqqueue, {name, durable, auto_delete, arguments, pid}). @@ -57,7 +57,7 @@ -record(route, {binding, value = const}). -record(reverse_route, {reverse_binding, value = const}). --record(binding, {exchange_name, key, queue_name, args = []}). +-record(binding, {exchange_name, key, queue_name, args = [], complete = false}). -record(reverse_binding, {queue_name, key, exchange_name, args = []}). -record(listener, {node, protocol, host, port}). @@ -112,11 +112,13 @@ type :: exchange_type(), durable :: boolean(), auto_delete :: boolean(), - arguments :: amqp_table()}). + arguments :: amqp_table(), + complete :: boolean()}). -type(binding() :: #binding{exchange_name :: exchange_name(), queue_name :: queue_name(), - key :: binding_key()}). + key :: binding_key(), + complete :: boolean()}). %% TODO: make this more precise by tying specific class_ids to %% specific properties -type(undecoded_content() :: diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 495fc4b3..c9829b5b 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -93,6 +93,7 @@ %%---------------------------------------------------------------------------- -define(INFO_KEYS, [name, type, durable, auto_delete, arguments]. +-define(MAX_RETRIES, 9). recover() -> ok = rabbit_misc:table_foreach( @@ -112,21 +113,44 @@ declare(ExchangeName, Type, Durable, AutoDelete, Args) -> type = Type, durable = Durable, auto_delete = AutoDelete, - arguments = Args}, - ok = Type:declare(Exchange), - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_exchange, ExchangeName}) of - [] -> ok = mnesia:write(rabbit_exchange, Exchange, write), - if Durable -> - ok = mnesia:write(rabbit_durable_exchange, - Exchange, write); - true -> ok - end, - Exchange; - [ExistingX] -> ExistingX - end - end). + arguments = Args, + complete = false}, + case mnesia:sync_transaction( + fun () -> + case mnesia:wread({rabbit_exchange, ExchangeName}) of + [] -> ok = mnesia:write(rabbit_exchange, Exchange, write), + if Durable -> + ok = mnesia:write(rabbit_durable_exchange, + Exchange, write); + true -> ok + end, + {new, Exchange}; + [ExistingX = #exchange{ complete = true}] -> + {existing, ExistingX}; + [_UncommittedX] -> + %% make mnesia repeat the transaction until it + %% gets a definite answer + exit({aborted, + erlang:make_tuple(6, cyclic)}) + end + end, [], ?MAX_RETRIES) of + {atomic, {existing, X}} -> X; + {atomic, {new, X}} -> + NewExchange = X#exchange{ complete = true }, + try + ok = Type:init(NewExchange) + catch + _:Err -> + rabbit_misc:execute_mnesia_transaction( + fun () -> + mnesia:delete(rabbit_exchange, ExchangeName) end), + throw(Err) + end, + rabbit_misc:execute_mnesia_transaction( + fun () -> + mnesia:write(NewExchange) end), + NewExchange + end. typename_to_plugin_module(T) -> case rabbit_exchange_type:lookup_module(T) of @@ -165,7 +189,10 @@ assert_type(#exchange{ name = Name, type = ActualType }, RequiredType) -> plugin_module_to_typename(RequiredType)]). lookup(Name) -> - rabbit_misc:dirty_read({rabbit_exchange, Name}). + case rabbit_misc:dirty_read({rabbit_exchange, Name}) of + Res = {ok, #exchange{ complete = true }} -> Res; + _ -> {error, not_found} + end. lookup_or_die(Name) -> case lookup(Name) of @@ -176,7 +203,9 @@ lookup_or_die(Name) -> list(VHostPath) -> mnesia:dirty_match_object( rabbit_exchange, - #exchange{name = rabbit_misc:r(VHostPath, exchange), _ = '_'}). + #exchange{name = rabbit_misc:r(VHostPath, exchange), + complete = true, + _ = '_'}). map(VHostPath, F) -> %% TODO: there is scope for optimisation here, e.g. using a @@ -308,8 +337,8 @@ continue({[], Continuation}) -> continue(mnesia:select(Continuation)). call_with_exchange(Exchange, Fun) -> rabbit_misc:execute_mnesia_transaction( fun() -> case mnesia:read({rabbit_exchange, Exchange}) of - [] -> {error, not_found}; - [X] -> Fun(X) + [X = #exchange{ complete = true }] -> Fun(X); + _ -> {error, not_found} end end). @@ -317,10 +346,12 @@ call_with_exchange_and_queue(Exchange, Queue, Fun) -> rabbit_misc:execute_mnesia_transaction( fun() -> case {mnesia:read({rabbit_exchange, Exchange}), mnesia:read({rabbit_queue, Queue})} of - {[X], [Q]} -> Fun(X, Q); - {[ ], [_]} -> {error, exchange_not_found}; - {[_], [ ]} -> {error, queue_not_found}; - {[ ], [ ]} -> {error, exchange_and_queue_not_found} + {[X = #exchange{ complete = true }], [Q]} -> + Fun(X, Q); + {[#exchange{ complete = true }], [ ]} -> + {error, queue_not_found}; + { _ , [_]} -> {error, exchange_not_found}; + { _ , [ ]} -> {error, exchange_and_queue_not_found} end end). -- cgit v1.2.1 From 82c320e2228fece0c45115deaaa8b92a78cca81c Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Mon, 11 Jan 2010 12:45:20 +0000 Subject: Only copy to the durable exchange table if the creation is confirmed; otherwise we can end up with complete=false records when they are copied back on recovery. --- src/rabbit_exchange.erl | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index c9829b5b..4039c2b0 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -119,15 +119,13 @@ declare(ExchangeName, Type, Durable, AutoDelete, Args) -> fun () -> case mnesia:wread({rabbit_exchange, ExchangeName}) of [] -> ok = mnesia:write(rabbit_exchange, Exchange, write), - if Durable -> - ok = mnesia:write(rabbit_durable_exchange, - Exchange, write); - true -> ok - end, + %io:format("New exchange ~p~n", [Exchange]), {new, Exchange}; [ExistingX = #exchange{ complete = true}] -> + %io:format("Existing exchange ~p~n", [ExistingX]), {existing, ExistingX}; - [_UncommittedX] -> + [UncommittedX] -> + %io:format("Incomplete exchange ~p~n", [UncommittedX]), %% make mnesia repeat the transaction until it %% gets a definite answer exit({aborted, @@ -148,7 +146,13 @@ declare(ExchangeName, Type, Durable, AutoDelete, Args) -> end, rabbit_misc:execute_mnesia_transaction( fun () -> - mnesia:write(NewExchange) end), + %io:format("Completed exchange ~p~n", [NewExchange]), + mnesia:write(rabbit_exchange, NewExchange, write), + if Durable -> ok = mnesia:write(rabbit_durable_exchange, + NewExchange, write); + true -> ok + end + end), NewExchange end. -- cgit v1.2.1 From fe7fda5652a6d0ea460662634f6caa8c46a6bcc6 Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Mon, 11 Jan 2010 15:50:57 +0000 Subject: After discussing with Matthias, set the retries to infinity. The choices here are the following: - give the competing process a short amount of time to run its hook, and fail if it takes too long (low retries; fast, non-fatal response) - give the competing process a long amount of time and fail hard - let the exchange implementation constrain its own running, which at least forces the process that's actually having the problem to signal it. --- src/rabbit_exchange.erl | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 4039c2b0..aa4a9866 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -93,7 +93,9 @@ %%---------------------------------------------------------------------------- -define(INFO_KEYS, [name, type, durable, auto_delete, arguments]. --define(MAX_RETRIES, 9). +%% Retry indefinitely. This requires that the exchange type hooks +%% should themselves time out, and throw an error on doing so. +-define(MAX_RETRIES, infinity). recover() -> ok = rabbit_misc:table_foreach( -- cgit v1.2.1 From 379ff533997d9724261fb67383b1b76754872205 Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Mon, 11 Jan 2010 15:52:43 +0000 Subject: Remove the mnesia event implementation of exchange hooks --- src/rabbit.erl | 3 +- src/rabbit_exchange_events.erl | 108 ----------------------------------------- 2 files changed, 1 insertion(+), 110 deletions(-) delete mode 100644 src/rabbit_exchange_events.erl diff --git a/src/rabbit.erl b/src/rabbit.erl index a90e682d..3293927a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -155,8 +155,7 @@ start(normal, []) -> ok = rabbit_amqqueue:start(), ok = start_child(rabbit_router), - ok = start_child(rabbit_node_monitor), - ok = start_child(rabbit_exchange_events) + ok = start_child(rabbit_node_monitor) end}, {"recovery", fun () -> diff --git a/src/rabbit_exchange_events.erl b/src/rabbit_exchange_events.erl deleted file mode 100644 index 77647135..00000000 --- a/src/rabbit_exchange_events.erl +++ /dev/null @@ -1,108 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_events). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/0]). --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]). - --define(SERVER, ?MODULE). - --ifdef(use_specs). --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -with_exchange(#binding{exchange_name = ExchangeName}, Fun) -> - case rabbit_exchange:lookup(ExchangeName) of - {ok, X} -> - Fun(X); - not_found -> - ok - end. - -handle_table_event({write, rabbit_exchange, X = #exchange{type = Type}, _OldRecs, _ActivityId}) -> - %% Exchange created/recovered. - ok = Type:init(X); -handle_table_event({delete, rabbit_exchange, {rabbit_exchange, _ExchangeName}, - [X = #exchange{type = Type}], _ActivityId}) -> - %% Exchange deleted. - ok = Type:delete(X); -handle_table_event({write, rabbit_route, #route{binding = B}, _OldRecs, _ActivityId}) -> - %% New binding. - ok = with_exchange(B, fun (X = #exchange{type = Type}) -> Type:add_binding(X, B) end); -handle_table_event({delete, rabbit_route, #route{binding = B}, _OldRecs, _ActivityId}) -> - %% Deleted binding. - ok = with_exchange(B, fun (X = #exchange{type = Type}) -> Type:delete_binding(X, B) end); -handle_table_event(_Event) -> - {error, unhandled_table_event}. - -%%--------------------------------------------------------------------------- - -init([]) -> - mnesia:subscribe({table, rabbit_exchange, detailed}), - mnesia:subscribe({table, rabbit_route, detailed}), - {ok, no_state}. - -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info({mnesia_table_event, Event}, State) -> - case catch handle_table_event(Event) of - {'EXIT', Reason} -> - rabbit_log:error("Exchange event callback failed~n~p~n", [[{event, Event}, - {reason, Reason}]]); - ok -> - ok; - {error, unhandled_table_event} -> - rabbit_log:error("Unexpected mnesia_table_event~n~p~n", [Event]) - end, - {noreply, State}; -handle_info(Info, State) -> - {stop, {unhandled_info, Info}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. -- cgit v1.2.1 From 60c7e9053b15c04bc5b2678c407ee0722a6a0af2 Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Tue, 12 Jan 2010 15:34:57 +0000 Subject: Change to using a three-valued state for exchange records. This isn't as easy to use in pattern matching, but it means we can distinguish between "not created yet" and "not deleted yet". (As an aside, all the test suites passes at this point.) --- include/rabbit.hrl | 9 ++++---- src/rabbit_exchange.erl | 61 ++++++++++++++++++++++++++++++------------------- 2 files changed, 43 insertions(+), 27 deletions(-) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index d9139a67..a48f03c4 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -49,7 +49,7 @@ -record(resource, {virtual_host, kind, name}). --record(exchange, {name, type, durable, auto_delete, arguments, complete = false}). +-record(exchange, {name, type, durable, auto_delete, arguments, state = creating}). -record(amqqueue, {name, durable, auto_delete, arguments, pid}). @@ -57,7 +57,7 @@ -record(route, {binding, value = const}). -record(reverse_route, {reverse_binding, value = const}). --record(binding, {exchange_name, key, queue_name, args = [], complete = false}). +-record(binding, {exchange_name, key, queue_name, args = [], state = creating}). -record(reverse_binding, {queue_name, key, exchange_name, args = []}). -record(listener, {node, protocol, host, port}). @@ -83,6 +83,7 @@ -type(info_key() :: atom()). -type(info() :: {info_key(), any()}). -type(regexp() :: binary()). +-type(record_state() :: 'creating' | 'deleting' | 'complete'). %% this is really an abstract type, but dialyzer does not support them -type(guid() :: any()). @@ -113,12 +114,12 @@ durable :: boolean(), auto_delete :: boolean(), arguments :: amqp_table(), - complete :: boolean()}). + state :: record_state()}). -type(binding() :: #binding{exchange_name :: exchange_name(), queue_name :: queue_name(), key :: binding_key(), - complete :: boolean()}). + state :: record_state()}). %% TODO: make this more precise by tying specific class_ids to %% specific properties -type(undecoded_content() :: diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index aa4a9866..e6345c66 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -110,40 +110,50 @@ recover() -> ReverseRoute, write) end, rabbit_durable_route). +%% The argument is a thunk that will abort the current attempt, +%% leading mnesia to retry. +retrying_transaction(Func1) -> + case mnesia:sync_transaction( + Func1, [(fun () -> + exit({aborted, erlang:make_tuple(6, cyclic)}) + end)], ?MAX_RETRIES) of + {atomic, Result} -> Result; + {aborted, nomore} -> + rabbit_misc:protocol_error( + internal_error, "exhausted retries for transaction", []) + end. + declare(ExchangeName, Type, Durable, AutoDelete, Args) -> Exchange = #exchange{name = ExchangeName, type = Type, durable = Durable, auto_delete = AutoDelete, arguments = Args, - complete = false}, - case mnesia:sync_transaction( - fun () -> + state = creating}, + case retrying_transaction( + fun (Abort) -> case mnesia:wread({rabbit_exchange, ExchangeName}) of [] -> ok = mnesia:write(rabbit_exchange, Exchange, write), %io:format("New exchange ~p~n", [Exchange]), {new, Exchange}; - [ExistingX = #exchange{ complete = true}] -> + [ExistingX = #exchange{ state = complete }] -> %io:format("Existing exchange ~p~n", [ExistingX]), {existing, ExistingX}; [UncommittedX] -> %io:format("Incomplete exchange ~p~n", [UncommittedX]), - %% make mnesia repeat the transaction until it - %% gets a definite answer - exit({aborted, - erlang:make_tuple(6, cyclic)}) + Abort() end - end, [], ?MAX_RETRIES) of - {atomic, {existing, X}} -> X; - {atomic, {new, X}} -> - NewExchange = X#exchange{ complete = true }, + end) of + {existing, X} -> X; + {new, X} -> + NewExchange = X#exchange{ state = complete }, try ok = Type:init(NewExchange) catch _:Err -> rabbit_misc:execute_mnesia_transaction( fun () -> - mnesia:delete(rabbit_exchange, ExchangeName) end), + mnesia:delete(rabbit_exchange, ExchangeName, write) end), throw(Err) end, rabbit_misc:execute_mnesia_transaction( @@ -196,7 +206,7 @@ assert_type(#exchange{ name = Name, type = ActualType }, RequiredType) -> lookup(Name) -> case rabbit_misc:dirty_read({rabbit_exchange, Name}) of - Res = {ok, #exchange{ complete = true }} -> Res; + Res = {ok, #exchange{ state = State }} when State /= creating -> Res; _ -> {error, not_found} end. @@ -207,11 +217,12 @@ lookup_or_die(Name) -> end. list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_exchange, - #exchange{name = rabbit_misc:r(VHostPath, exchange), - complete = true, - _ = '_'}). + [X || X = #exchange{ state = State } <- + mnesia:dirty_match_object( + rabbit_exchange, + #exchange{name = rabbit_misc:r(VHostPath, exchange), + _ = '_'}), + State /= creating]. map(VHostPath, F) -> %% TODO: there is scope for optimisation here, e.g. using a @@ -343,8 +354,10 @@ continue({[], Continuation}) -> continue(mnesia:select(Continuation)). call_with_exchange(Exchange, Fun) -> rabbit_misc:execute_mnesia_transaction( fun() -> case mnesia:read({rabbit_exchange, Exchange}) of - [X = #exchange{ complete = true }] -> Fun(X); - _ -> {error, not_found} + [X = #exchange{ state = State }] when State /= creating -> + Fun(X); + _ -> + {error, not_found} end end). @@ -352,9 +365,11 @@ call_with_exchange_and_queue(Exchange, Queue, Fun) -> rabbit_misc:execute_mnesia_transaction( fun() -> case {mnesia:read({rabbit_exchange, Exchange}), mnesia:read({rabbit_queue, Queue})} of - {[X = #exchange{ complete = true }], [Q]} -> + {[X = #exchange{ state = State }], [Q]} + when State /= creating -> Fun(X, Q); - {[#exchange{ complete = true }], [ ]} -> + {[#exchange{ state = State }], [ ]} + when State /= creating -> {error, queue_not_found}; { _ , [_]} -> {error, exchange_not_found}; { _ , [ ]} -> {error, exchange_and_queue_not_found} -- cgit v1.2.1 From 0ccb119efa7b7874544d0e7b84528fd054e5afb6 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Tue, 12 Jan 2010 18:17:45 +0000 Subject: Add autogen comment and copyright. --- codegen.py | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/codegen.py b/codegen.py index 20bfc947..6f39574f 100644 --- a/codegen.py +++ b/codegen.py @@ -92,6 +92,40 @@ class PackedMethodBitField: def full(self): return self.count() == 8 + +def printFileHeader(): + print """%% Autogenerated code. Do not edit. +%% +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2009 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2009 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%%""" def genErl(spec): def erlType(domain): @@ -251,6 +285,7 @@ def genErl(spec): methods = spec.allMethods() + printFileHeader() print """-module(rabbit_framing). -include("rabbit_framing.hrl"). @@ -325,6 +360,7 @@ def genHrl(spec): methods = spec.allMethods() + printFileHeader() print "-define(PROTOCOL_VERSION_MAJOR, %d)." % (spec.major) print "-define(PROTOCOL_VERSION_MINOR, %d)." % (spec.minor) print "-define(PROTOCOL_PORT, %d)." % (spec.port) -- cgit v1.2.1 From 6afcfc56f6480b22be824904f71b2bfe8bf8f6d3 Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Wed, 13 Jan 2010 15:13:10 +0000 Subject: Incomplete work on adding transactionality to binding hooks -- committing this before I rip it all up (see comment 22). --- include/rabbit.hrl | 9 ++- src/rabbit_exchange.erl | 160 ++++++++++++++++++++++++++++++++---------------- 2 files changed, 110 insertions(+), 59 deletions(-) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index a48f03c4..63ca8740 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -54,10 +54,10 @@ -record(amqqueue, {name, durable, auto_delete, arguments, pid}). %% mnesia doesn't like unary records, so we add a dummy 'value' field --record(route, {binding, value = const}). --record(reverse_route, {reverse_binding, value = const}). +-record(route, {binding, state = creating}). +-record(reverse_route, {reverse_binding, state = creating}). --record(binding, {exchange_name, key, queue_name, args = [], state = creating}). +-record(binding, {exchange_name, key, queue_name, args = []}). -record(reverse_binding, {queue_name, key, exchange_name, args = []}). -record(listener, {node, protocol, host, port}). @@ -118,8 +118,7 @@ -type(binding() :: #binding{exchange_name :: exchange_name(), queue_name :: queue_name(), - key :: binding_key(), - state :: record_state()}). + key :: binding_key()}). %% TODO: make this more precise by tying specific class_ids to %% specific properties -type(undecoded_content() :: diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index e6345c66..29d6b481 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -131,7 +131,7 @@ declare(ExchangeName, Type, Durable, AutoDelete, Args) -> arguments = Args, state = creating}, case retrying_transaction( - fun (Abort) -> + fun (Retry) -> case mnesia:wread({rabbit_exchange, ExchangeName}) of [] -> ok = mnesia:write(rabbit_exchange, Exchange, write), %io:format("New exchange ~p~n", [Exchange]), @@ -141,7 +141,7 @@ declare(ExchangeName, Type, Durable, AutoDelete, Args) -> {existing, ExistingX}; [UncommittedX] -> %io:format("Incomplete exchange ~p~n", [UncommittedX]), - Abort() + Retry() end end) of {existing, X} -> X; @@ -296,13 +296,13 @@ delete_exchange_bindings(ExchangeName) -> write)], ok. -delete_queue_bindings(QueueName) -> +delete_queue_bindings(QueueName, Retry) -> delete_queue_bindings(QueueName, fun delete_forward_routes/1). -delete_transient_queue_bindings(QueueName) -> +delete_transient_queue_bindings(QueueName, Retry) -> delete_queue_bindings(QueueName, fun delete_transient_forward_routes/1). -delete_queue_bindings(QueueName, FwdDeleteFun) -> +delete_queue_bindings(QueueName, FwdDeleteFun, Retry) -> Exchanges = exchanges_for_queue(QueueName), [begin ok = FwdDeleteFun(reverse_route(Route)), @@ -351,71 +351,123 @@ continue('$end_of_table') -> false; continue({[_|_], _}) -> true; continue({[], Continuation}) -> continue(mnesia:select(Continuation)). +%% The following call_with_x procedures will retry until the named +%% exchange has a definite state; i.e., it is 'complete', or doesn't +%% exist. + call_with_exchange(Exchange, Fun) -> - rabbit_misc:execute_mnesia_transaction( - fun() -> case mnesia:read({rabbit_exchange, Exchange}) of - [X = #exchange{ state = State }] when State /= creating -> - Fun(X); - _ -> - {error, not_found} - end + retrying_transaction( + fun(Retry) -> case mnesia:read({rabbit_exchange, Exchange}) of + [X = #exchange{ state = complete }] -> + Fun(X, Retry); + [] -> + {error, not_found}; + [_] -> Retry() + end end). call_with_exchange_and_queue(Exchange, Queue, Fun) -> - rabbit_misc:execute_mnesia_transaction( - fun() -> case {mnesia:read({rabbit_exchange, Exchange}), - mnesia:read({rabbit_queue, Queue})} of - {[X = #exchange{ state = State }], [Q]} - when State /= creating -> - Fun(X, Q); - {[#exchange{ state = State }], [ ]} - when State /= creating -> - {error, queue_not_found}; - { _ , [_]} -> {error, exchange_not_found}; - { _ , [ ]} -> {error, exchange_and_queue_not_found} - end + retrying_transaction( + fun(Retry) -> case {mnesia:read({rabbit_exchange, Exchange}), + mnesia:read({rabbit_queue, Queue})} of + {[X = #exchange{ state = complete }], [Q]} -> + Fun(X, Q, Retry); + {[X = #exchange{ state = complete }], [ ]} -> + {error, queue_not_found}; + {[_] , _ } -> Retry(); + {[ ] , [_]} -> {error, exchange_not_found}; + {[ ] , [ ]} -> {error, exchange_and_queue_not_found} + end end). + add_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> - binding_action( - ExchangeName, QueueName, RoutingKey, Arguments, - fun (X, Q, B) -> - if Q#amqqueue.durable and not(X#exchange.durable) -> - {error, durability_settings_incompatible}; - true -> ok = sync_binding(B, Q#amqqueue.durable, - fun mnesia:write/3) - end - end). + case binding_action( + ExchangeName, QueueName, RoutingKey, Arguments, + fun (X, Q, B, Retry) -> + case mnesia:read({rabbit_route, B}) of + [#route{ state = complete }] -> {existing, X, B}; + [_] -> Retry(); + [ ] -> + sync_binding( + B, Q#amqqueue.durable, creating, fun mnesia:write/3), + {new, X, B} + end + end) of + {existing, X, B} -> B; + {new, X = #exchange{ type = Type }, B} -> + Backout = fun() -> + rabbit_misc:execute_mnesia_transaction( + fun () -> + sync_binding( + B, false, creating, fun mnesia:delete/3) + end) + end, + try + ok = Type:add_binding(X, B) + catch + _:Err -> + Backout(), + throw(Err) + end, + %% FIXME TODO WARNING AWOOGA the exchange or queue may have been created again + case call_with_exchange_and_queue( + ExchangeName, QueueName, + fun (X, Q, Retry) -> + sync_binding(B, false, complete, fun mnesia:write/3), + ok = case X#exchange.durable of + true -> mnesia:write(rabbit_durable_route, + #route{binding = Binding}, write); + false -> ok + end + end) of + NotFound = {error, _} -> + Backout(), + NotFound; + SuccessResult -> SuccessResult + end + end. + +%% add_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> +%% binding_action( +%% ExchangeName, QueueName, RoutingKey, Arguments, +%% fun (X, Q, B) -> +%% if Q#amqqueue.durable and not(X#exchange.durable) -> +%% {error, durability_settings_incompatible}; +%% true -> + +%% ok = sync_binding(B, Q#amqqueue.durable, +%% fun mnesia:write/3) +%% end +%% end). delete_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> binding_action( ExchangeName, QueueName, RoutingKey, Arguments, - fun (X, Q, B) -> + fun (X, Q, B, Retry) -> case mnesia:match_object(rabbit_route, #route{binding = B}, write) of [] -> {error, binding_not_found}; - _ -> ok = sync_binding(B, Q#amqqueue.durable, + _ -> ok = sync_binding(B, Q#amqqueue.durable, deleting, fun mnesia:delete_object/3), - maybe_auto_delete(X) + maybe_auto_delete(X, Retry) end end). binding_action(ExchangeName, QueueName, RoutingKey, Arguments, Fun) -> call_with_exchange_and_queue( ExchangeName, QueueName, - fun (X, Q) -> - Fun(X, Q, #binding{exchange_name = ExchangeName, - queue_name = QueueName, - key = RoutingKey, - args = rabbit_misc:sort_field_table(Arguments)}) + fun (X, Q, Retry) -> + Fun(X, Q, + #binding{exchange_name = ExchangeName, + queue_name = QueueName, + key = RoutingKey, + args = rabbit_misc:sort_field_table(Arguments)}, + Retry) end). -sync_binding(Binding, Durable, Fun) -> - ok = case Durable of - true -> Fun(rabbit_durable_route, - #route{binding = Binding}, write); - false -> ok - end, +% TODO remove durable +sync_binding(Binding, Durable, State, Fun) -> {Route, ReverseRoute} = route_with_reverse(Binding), ok = Fun(rabbit_route, Route, write), ok = Fun(rabbit_reverse_route, ReverseRoute, write), @@ -466,17 +518,17 @@ reverse_binding(#binding{exchange_name = Exchange, args = Args}. delete(ExchangeName, _IfUnused = true) -> - call_with_exchange(ExchangeName, fun conditional_delete/1); + call_with_exchange(ExchangeName, fun conditional_delete/2); delete(ExchangeName, _IfUnused = false) -> - call_with_exchange(ExchangeName, fun unconditional_delete/1). + call_with_exchange(ExchangeName, fun unconditional_delete/2). -maybe_auto_delete(#exchange{auto_delete = false}) -> +maybe_auto_delete(#exchange{auto_delete = false}, _) -> ok; -maybe_auto_delete(Exchange = #exchange{auto_delete = true}) -> - conditional_delete(Exchange), +maybe_auto_delete(Exchange = #exchange{auto_delete = true}, Retry) -> + conditional_delete(Exchange, Retry), ok. -conditional_delete(Exchange = #exchange{name = ExchangeName}) -> +conditional_delete(Exchange = #exchange{name = ExchangeName}, Retry) -> Match = #route{binding = #binding{exchange_name = ExchangeName, _ = '_'}}, %% we need to check for durable routes here too in case a bunch of %% routes to durable queues have been removed temporarily as a @@ -486,7 +538,7 @@ conditional_delete(Exchange = #exchange{name = ExchangeName}) -> true -> {error, in_use} end. -unconditional_delete(#exchange{name = ExchangeName}) -> +unconditional_delete(#exchange{name = ExchangeName}, Retry) -> ok = delete_exchange_bindings(ExchangeName), ok = mnesia:delete({rabbit_durable_exchange, ExchangeName}), ok = mnesia:delete({rabbit_exchange, ExchangeName}). -- cgit v1.2.1 From 8766a9a2087c8ec5e71c0d506c762d6533fb3b20 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Sat, 16 Jan 2010 20:24:26 +0000 Subject: Converted appropriate calls as per bug --- src/rabbit_channel.erl | 46 +++++++++++++++++++++++----------------------- 1 file changed, 23 insertions(+), 23 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 6afd0bc9..ad12903b 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -526,24 +526,24 @@ handle_method(#'basic.recover'{requeue = false}, _, State = #ch{ transaction_id = none, writer_pid = WriterPid, unacked_message_q = UAMQ }) -> - lists:foreach( - fun ({_DeliveryTag, none, _Msg}) -> - %% Was sent as a basic.get_ok. Don't redeliver - %% it. FIXME: appropriate? - ok; - ({DeliveryTag, ConsumerTag, - {QName, QPid, MsgId, _Redelivered, Message}}) -> - %% Was sent as a proper consumer delivery. Resend it as - %% before. - %% - %% FIXME: What should happen if the consumer's been - %% cancelled since? - %% - %% FIXME: should we allocate a fresh DeliveryTag? - ok = internal_deliver( - WriterPid, false, ConsumerTag, DeliveryTag, - {QName, QPid, MsgId, true, Message}) - end, queue:to_list(UAMQ)), + ok = rabbit_misc:queue_fold( + fun ({_DeliveryTag, none, _Msg}, ok) -> + %% Was sent as a basic.get_ok. Don't redeliver + %% it. FIXME: appropriate? + ok; + ({DeliveryTag, ConsumerTag, + {QName, QPid, MsgId, _Redelivered, Message}}, ok) -> + %% Was sent as a proper consumer delivery. Resend it as + %% before. + %% + %% FIXME: What should happen if the consumer's been + %% cancelled since? + %% + %% FIXME: should we allocate a fresh DeliveryTag? + ok = internal_deliver( + WriterPid, false, ConsumerTag, DeliveryTag, + {QName, QPid, MsgId, true, Message}) + end, ok, UAMQ), %% No answer required, apparently! {noreply, State}; @@ -872,7 +872,7 @@ rollback_and_notify(State) -> notify_queues(internal_rollback(State)). fold_per_queue(F, Acc0, UAQ) -> - D = lists:foldl( + D = rabbit_misc:queue_fold( fun ({_DTag, _CTag, {_QName, QPid, MsgId, _Redelivered, _Message}}, D) -> %% dict:append would be simpler and avoid the @@ -883,7 +883,7 @@ fold_per_queue(F, Acc0, UAQ) -> fun (MsgIds) -> [MsgId | MsgIds] end, [MsgId], D) - end, dict:new(), queue:to_list(UAQ)), + end, dict:new(), UAQ), dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, Acc0, D). @@ -912,9 +912,9 @@ consumer_queues(Consumers) -> notify_limiter(undefined, _Acked) -> ok; notify_limiter(LimiterPid, Acked) -> - case lists:foldl(fun ({_, none, _}, Acc) -> Acc; - ({_, _, _}, Acc) -> Acc + 1 - end, 0, queue:to_list(Acked)) of + case rabbit_misc:queue_fold(fun ({_, none, _}, Acc) -> Acc; + ({_, _, _}, Acc) -> Acc + 1 + end, 0, Acked) of 0 -> ok; Count -> rabbit_limiter:ack(LimiterPid, Count) end. -- cgit v1.2.1 From 1b5fd83aba0b24a1053bca2734cb3e7f326bf523 Mon Sep 17 00:00:00 2001 From: David Wragg Date: Mon, 18 Jan 2010 14:55:49 +0000 Subject: Get portindex to produce the tgz files required for an http macports repo --- packaging/macports/Makefile | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile index c629ce2f..58a3e9c7 100644 --- a/packaging/macports/Makefile +++ b/packaging/macports/Makefile @@ -36,6 +36,8 @@ macports: dirs $(DEST)/Portfile $(DEST)/files/rabbitmq-script-wrapper cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files +# This target ssh's into the OSX host in order to finalize the +# macports repo macports_index: if [ -n "$(MACPORTS_USERHOST)" ] ; then \ tar cf - -C $(MACPORTS_DIR) . | ssh $(SSH_OPTS) lshift@macrabbit ' \ @@ -43,8 +45,8 @@ macports_index: mkdir $$d \ && cd $$d \ && tar xf - \ - && /opt/local/bin/portindex >/dev/null \ - && tar cf - PortIndex* \ + && /opt/local/bin/portindex -a -o . >/dev/null \ + && tar cf - . \ && cd \ && rm -rf $$d' \ | tar xf - -C $(MACPORTS_DIR) ; \ -- cgit v1.2.1 From 9338fc447b656274c4f8fce5afb8f63c2375dcbe Mon Sep 17 00:00:00 2001 From: David Wragg Date: Mon, 18 Jan 2010 21:57:00 +0000 Subject: Incorporate the minor changes from the macports svn portfile --- packaging/macports/Portfile.in | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in index 12b9dfd3..e1f58212 100644 --- a/packaging/macports/Portfile.in +++ b/packaging/macports/Portfile.in @@ -4,9 +4,9 @@ PortSystem 1.0 name rabbitmq-server version @VERSION@ -revision 0 +revision 1 categories net -maintainers tonyg@rabbitmq.com +maintainers rabbitmq.com:tonyg platforms darwin description The RabbitMQ AMQP Server long_description \ -- cgit v1.2.1 -- cgit v1.2.1 From bea21543c663fcfe6b3fad92d4a23e84934102bd Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 21 Jan 2010 13:20:21 +0000 Subject: Implemented limit --- src/gen_server2.erl | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/src/gen_server2.erl b/src/gen_server2.erl index 53edf8de..5b95c545 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -179,6 +179,8 @@ -import(error_logger, [format/2]). +-define(DRAIN_PER_PROCESS, 1000). + %%%========================================================================= %%% Specs. These exist only to shut up dialyzer's warnings %%%========================================================================= @@ -474,8 +476,13 @@ loop(Parent, Name, State, Mod, Time, TimeoutState, Queue, Debug) -> drain(Queue), Debug). drain(Queue) -> + drain(Queue, ?DRAIN_PER_PROCESS). + +drain(Queue, 0) -> + Queue; +drain(Queue, N) -> receive - Input -> drain(in(Input, Queue)) + Input -> drain(in(Input, Queue), N - 1) after 0 -> Queue end. -- cgit v1.2.1 From f22921d609ed95319d06894b4b151bd2344ba1c9 Mon Sep 17 00:00:00 2001 From: David Wragg Date: Thu, 21 Jan 2010 15:51:02 +0000 Subject: The macports Makefile should by default construct the macports package --- packaging/macports/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile index 58a3e9c7..53d27f9b 100644 --- a/packaging/macports/Makefile +++ b/packaging/macports/Makefile @@ -17,6 +17,8 @@ MACPORTS_USERHOST= MACPORTS_DIR=macports DEST=$(MACPORTS_DIR)/net/rabbitmq-server +all: macports + dirs: mkdir -p $(DEST)/files -- cgit v1.2.1 From 7e12faffdd68054cd1b68ea635bf6c5b9993a3b4 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 21 Jan 2010 17:25:59 +0000 Subject: Split queues to limited and unlimited queues, thus we don't need to filter out unlimited queues when trying to unblock. There's still the dict:fold over all the limited queues, otoh, this can't be avoided given the probabilistic nature of the solution - we just don't know in advance how many queues we're going to attempt to unblock. Also, found a large number of bugs here with the previous version - such as the inability to cope with several queues of the same length and others too. --- src/rabbit_limiter.erl | 160 ++++++++++++++++++++++++++++++------------------- 1 file changed, 97 insertions(+), 63 deletions(-) diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index 71ae5e35..85eacd1d 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -59,7 +59,8 @@ -record(lim, {prefetch_count = 0, ch_pid, - queues = dict:new(), % QPid -> {MonitorRef, Notify, Length} + limited = dict:new(), % QPid -> {MonitorRef, Length} + unlimited = dict:new(), % QPid -> {MonitorRef, Length} volume = 0}). %% 'Notify' is a boolean that indicates whether a queue should be %% notified of a change in the limit or volume that may allow it to @@ -165,101 +166,134 @@ maybe_notify(OldState, NewState) -> limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> Limit =/= 0 andalso Volume >= Limit. -remember_queue(QPid, State = #lim{queues = Queues}) -> - case dict:is_key(QPid, Queues) of +remember_queue(QPid, State = #lim{limited = Limited, unlimited = Unlimited}) -> + case dict:is_key(QPid, Limited) orelse dict:is_key(QPid, Unlimited) of false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = dict:store(QPid, {MRef, false, 0}, Queues)}; + State#lim{unlimited = dict:store(QPid, {MRef, 0}, Unlimited)}; true -> State end. -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> +forget_queue(QPid, State = #lim{ch_pid = ChPid, limited = Limited, + unlimited = Unlimited}) -> + Limited1 = forget_queue(ChPid, QPid, Limited, true), + Unlimited1 = forget_queue(ChPid, QPid, Unlimited, false), + State#lim{limited = Limited1, unlimited = Unlimited1}. + +forget_queue(ChPid, QPid, Queues, NeedsUnblocking) -> case dict:find(QPid, Queues) of - {ok, {MRef, _, _}} -> + {ok, {MRef, _}} -> true = erlang:demonitor(MRef), - unblock(async, QPid, ChPid), - State#lim{queues = dict:erase(QPid, Queues)}; - error -> State + (not NeedsUnblocking) orelse unblock(async, QPid, ChPid), + dict:erase(QPid, Queues); + error -> + Queues end. -limit_queue(QPid, Length, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _, _}) -> {MRef, true, Length} end, - State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. - -update_length(QPid, Length, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, Notify, _}) -> {MRef, Notify, Length} end, - State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. +limit_queue(QPid, Length, State = #lim{unlimited = Unlimited, + limited = Limited}) -> + {MRef, _} = case dict:find(QPid, Unlimited) of + error -> dict:fetch(QPid, Limited); + {ok, Result} -> Result + end, + Unlimited1 = dict:erase(QPid, Unlimited), + Limited1 = dict:store(QPid, {MRef, Length}, Limited), + State#lim{unlimited = Unlimited1, limited = Limited1}. + +%% knows that the queue is unlimited +update_length(QPid, Length, State = #lim{unlimited = Unlimited, + limited = Limited}) -> + UpdateFun = fun ({MRef, _}) -> {MRef, Length} end, + case dict:is_key(QPid, Unlimited) of + true -> State#lim{unlimited = dict:update(QPid, UpdateFun, Unlimited)}; + false -> State#lim{limited = dict:update(QPid, UpdateFun, Limited)} + end. is_zero_num(0) -> 0; is_zero_num(_) -> 1. -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues, - prefetch_count = PrefetchCount, volume = Volume}) -> - {QTree, LengthSum, NonZeroQCount} = - dict:fold(fun (_QPid, {_, false, _}, Acc) -> Acc; - (QPid, {_MRef, true, Length}, {Tree, Sum, NZQCount}) -> +notify_queues(#lim{ch_pid = ChPid, limited = Limited, unlimited = Unlimited, + prefetch_count = PrefetchCount, volume = Volume} = State) -> + Capacity = PrefetchCount - Volume, + {QDict, LengthSum, NonZeroQCount} = + dict:fold(fun (QPid, {_MRef, Length}, {Dict, Sum, NZQCount}) -> Sum1 = Sum + lists:max([1, Length]), - {gb_trees:enter(Length, QPid, Tree), Sum1, + {orddict:append(Length, QPid, Dict), Sum1, NZQCount + is_zero_num(Length)} - end, {gb_trees:empty(), 0, 0}, Queues), - Queues1 = - case gb_trees:size(QTree) of - 0 -> Queues; + end, {orddict:new(), 0, 0}, Limited), + {Unlimited1, Limited1} = + case orddict:size(QDict) of + 0 -> {Unlimited, Limited}; QCount -> - Capacity = PrefetchCount - Volume, + QTree = gb_trees:from_orddict(QDict), case Capacity >= NonZeroQCount of - true -> unblock_all(ChPid, QCount, QTree, Queues); + true -> + unblock_all(ChPid, QCount, QTree, Unlimited, Limited); false -> %% try to tell enough queues that we guarantee %% we'll get blocked again - {Capacity1, Queues2} = + {Capacity1, Unlimited2, Limited2} = unblock_queues( - sync, ChPid, LengthSum, Capacity, QTree, Queues), + sync, ChPid, LengthSum, Capacity, QTree, + Unlimited, Limited), case 0 == Capacity1 of - true -> Queues2; + true -> + {Unlimited2, Limited2}; false -> %% just tell everyone - unblock_all(ChPid, QCount, QTree, Queues2) + unblock_all(ChPid, QCount, QTree, Unlimited2, + Limited2) end end end, - State#lim{queues = Queues1}. - -unblock_all(ChPid, QCount, QTree, Queues) -> - {_Capacity2, Queues1} = - unblock_queues(async, ChPid, 1, QCount, QTree, Queues), - Queues1. - -unblock_queues(_Mode, _ChPid, _L, 0, _QList, Queues) -> - {0, Queues}; -unblock_queues(Mode, ChPid, L, QueueCount, QList, Queues) -> - {Length, QPid, QList1} = gb_trees:take_largest(QList), - {_MRef, Blocked, Length} = dict:fetch(QPid, Queues), - case Length == 0 andalso Mode == sync of - true -> {QueueCount, Queues}; - false -> - {QueueCount1, Queues1} = - case Blocked of - false -> {QueueCount, Queues}; - true -> + State#lim{unlimited = Unlimited1, limited = Limited1}. + +unblock_all(ChPid, QCount, QTree, Unlimited, Limited) -> + {_Capacity2, Unlimited1, Limited1} = + unblock_queues(async, ChPid, 1, QCount, QTree, Unlimited, Limited), + {Unlimited1, Limited1}. + +unblock_queues(_Mode, _ChPid, _L, 0, _QList, Unlimited, Limited) -> + {0, Unlimited, Limited}; +unblock_queues(Mode, ChPid, L, QueueCount, QList, Unlimited, Limited) -> + {Length, QPids, QList1} = gb_trees:take_largest(QList), + unblock_queues(Mode, ChPid, L, QueueCount, QList1, Unlimited, Limited, + Length, QPids). + +unblock_queues(Mode, ChPid, L, QueueCount, QList, Unlimited, Limited, Length, + []) -> + case gb_trees:is_empty(QList) of + true -> {QueueCount, Unlimited, Limited}; + false -> unblock_queues(Mode, ChPid, L - Length, QueueCount, QList, + Unlimited, Limited) + end; +unblock_queues(Mode, ChPid, L, QueueCount, QList, Unlimited, Limited, Length, + [QPid|QPids]) -> + case dict:find(QPid, Limited) of + error -> + %% We're reusing the gb_tree in multiple calls to + %% unblock_queues and so we may well be trying to unblock + %% already-unblocked queues. Just recurse + unblock_queues(Mode, ChPid, L, QueueCount, QList, Unlimited, + Limited, Length, QPids); + {ok, Value = {_MRef, Length}} -> + case Length == 0 andalso Mode == sync of + true -> {QueueCount, Unlimited, Limited}; + false -> + {QueueCount1, Unlimited1, Limited1} = case 1 >= L orelse Length >= random:uniform(L) of true -> case unblock(Mode, QPid, ChPid) of true -> {QueueCount - 1, - dict:update( - QPid, fun unblock_fun/1, Queues)}; - false -> {QueueCount, Queues} + dict:store(QPid, Value, Unlimited), + dict:erase(QPid, Limited)}; + false -> {QueueCount, Unlimited, Limited} end; - false -> {QueueCount, Queues} - end - end, - case gb_trees:is_empty(QList1) of - true -> {QueueCount1, Queues1}; - false -> unblock_queues(Mode, ChPid, L - Length, QueueCount1, - QList1, Queues1) + false -> {QueueCount, Unlimited, Limited} + end, + unblock_queues(Mode, ChPid, L - Length, QueueCount1, QList, + Unlimited1, Limited1, Length, QPids) end end. unblock(sync, QPid, ChPid) -> rabbit_amqqueue:unblock_sync(QPid, ChPid); unblock(async, QPid, ChPid) -> rabbit_amqqueue:unblock_async(QPid, ChPid). - -unblock_fun({MRef, _, Length}) -> {MRef, false, Length}. -- cgit v1.2.1 From 7e743d5cf69227e079599027a27054656975dd45 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 4 Feb 2010 15:32:31 +0000 Subject: Limit flapping to 2 transitions within 10 seconds. This has been tested against bug 21673 and it works fine there too. --- src/rabbit_alarm.erl | 23 +++++-- src/rabbit_alarm_flap_limiter.erl | 124 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 141 insertions(+), 6 deletions(-) create mode 100644 src/rabbit_alarm_flap_limiter.erl diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 534409aa..55c98ad5 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -38,7 +38,7 @@ -export([init/1, handle_call/2, handle_event/2, handle_info/2, terminate/2, code_change/3]). --record(alarms, {alertees, vm_memory_high_watermark = false}). +-record(alarms, {alertees, vm_memory_high_watermark = false, flap_state}). %%---------------------------------------------------------------------------- @@ -75,7 +75,8 @@ register(Pid, HighMemMFA) -> %%---------------------------------------------------------------------------- init([]) -> - {ok, #alarms{alertees = dict:new()}}. + {ok, #alarms{alertees = dict:new(), + flap_state = rabbit_alarm_flap_limiter:init()}}. handle_call({register, Pid, {M, F, A} = HighMemMFA}, State = #alarms{alertees = Alertess}) -> @@ -91,12 +92,22 @@ handle_call(_Request, State) -> {ok, not_understood, State}. handle_event({set_alarm, {vm_memory_high_watermark, []}}, State) -> - ok = alert(true, State#alarms.alertees), - {ok, State#alarms{vm_memory_high_watermark = true}}; + {Res, FState} = rabbit_alarm_flap_limiter:set(State#alarms.flap_state), + State1 = State#alarms{flap_state = FState}, + {ok, case Res of + true -> ok = alert(true, State#alarms.alertees), + State1#alarms{vm_memory_high_watermark = true}; + false -> State1 + end}; handle_event({clear_alarm, vm_memory_high_watermark}, State) -> - ok = alert(false, State#alarms.alertees), - {ok, State#alarms{vm_memory_high_watermark = false}}; + {Res, FState} = rabbit_alarm_flap_limiter:clear(State#alarms.flap_state), + State1 = State#alarms{flap_state = FState}, + {ok, case Res of + true -> ok = alert(false, State#alarms.alertees), + State1#alarms{vm_memory_high_watermark = false}; + false -> State1 + end}; handle_event(_Event, State) -> {ok, State}. diff --git a/src/rabbit_alarm_flap_limiter.erl b/src/rabbit_alarm_flap_limiter.erl new file mode 100644 index 00000000..70e45d66 --- /dev/null +++ b/src/rabbit_alarm_flap_limiter.erl @@ -0,0 +1,124 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_alarm_flap_limiter). + +-export([init/0, set/1, clear/1]). + +-define(MAX_INTENSITY, 2). %% 2 set->clear transitions +-define(MAX_PERIOD, 10). %% allowed within 10 seconds + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(state() :: any()). +-spec(init/0 :: () -> state()). +-spec(set/1 :: (state()) -> {boolean(), state()}). +-spec(clear/1 :: (state()) -> {boolean(), state()}). + +-endif. + +%%---------------------------------------------------------------------------- + +init() -> + {false, []}. + +%% already flapping too much, locked up +set(State = {true, _Restarts}) -> {false, State}; +set(State) -> {true, State}. + +clear({_Locked, Restarts}) -> + case add_transition(Restarts) of + {true, Restarts1} -> {true, {false, Restarts1}}; + {false, _Restarts1} -> {false, {true, Restarts}} + end. + +%%---------------------------------------------------------------------------- +%% The following code is lifted from supervisor.erl in Erlang/OTP +%% R13B03 and lightly edited. The following license applies: + +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1996-2009. All Rights Reserved. +%% +%% The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved online at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% %CopyrightEnd% +%% + +add_transition(Restarts) -> + Now = erlang:now(), + Restarts1 = add_transition([Now|Restarts], Now, ?MAX_PERIOD), + case length(Restarts1) of + CurI when CurI =< ?MAX_INTENSITY -> {true, Restarts1}; + _ -> {false, Restarts1} + end. + +add_transition([R|Restarts], Now, Period) -> + case inPeriod(R, Now, Period) of + true -> + [R|add_transition(Restarts, Now, Period)]; + _ -> + [] + end; +add_transition([], _, _) -> + []. + +inPeriod(Time, Now, Period) -> + case difference(Time, Now) of + T when T > Period -> + false; + _ -> + true + end. + +%% +%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored) +%% Calculate the time elapsed in seconds between two timestamps. +%% If MegaSecs is equal just subtract Secs. +%% Else calculate the Mega difference and add the Secs difference, +%% note that Secs difference can be negative, e.g. +%% {827, 999999, 676} diff {828, 1, 653753} == > 2 secs. +%% +difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM -> + ((CurM - TimeM) * 1000000) + (CurS - TimeS); +difference({_, TimeS, _}, {_, CurS, _}) -> + CurS - TimeS. -- cgit v1.2.1 From 5fdad75b7103b3317226c071286b53480d284256 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Tue, 9 Feb 2010 21:27:18 +0000 Subject: remove all files in junk hopefully this will make it easier to merge things into it --- INSTALL.in | 10 - LICENSE | 5 - LICENSE-MPL-RabbitMQ | 473 ------- Makefile | 232 ---- README.in | 10 - calculate-relative | 45 - codegen.py | 387 ------ docs/rabbitmq-activate-plugins.1.pod | 37 - docs/rabbitmq-deactivate-plugins.1.pod | 37 - docs/rabbitmq-multi.1.pod | 59 - docs/rabbitmq-server.1.pod | 88 -- docs/rabbitmq.conf.5.pod | 69 - docs/rabbitmqctl.1.pod | 468 ------- ebin/rabbit.app | 57 - ebin/rabbit_app.in | 25 - include/rabbit.hrl | 181 --- include/rabbit_exchange_behaviour_spec.hrl | 41 - include/rabbit_framing_spec.hrl | 60 - include/rabbit_msg_store.hrl | 55 - include/rabbit_queue.hrl | 44 - packaging/RPMS/Fedora/Makefile | 49 - packaging/RPMS/Fedora/rabbitmq-server.logrotate | 12 - packaging/RPMS/Fedora/rabbitmq-server.spec | 164 --- packaging/common/rabbitmq-asroot-script-wrapper | 45 - packaging/common/rabbitmq-script-wrapper | 58 - packaging/common/rabbitmq-server.init | 136 -- packaging/debs/Debian/Makefile | 42 - packaging/debs/Debian/check-changelog.sh | 29 - packaging/debs/Debian/debian/changelog | 96 -- packaging/debs/Debian/debian/compat | 1 - packaging/debs/Debian/debian/control | 15 - packaging/debs/Debian/debian/copyright | 530 -------- packaging/debs/Debian/debian/dirs | 9 - packaging/debs/Debian/debian/postinst | 55 - packaging/debs/Debian/debian/postrm.in | 69 - .../debs/Debian/debian/rabbitmq-server.logrotate | 12 - packaging/debs/Debian/debian/rules | 23 - packaging/debs/Debian/debian/watch | 4 - packaging/debs/apt-repository/Makefile | 28 - packaging/debs/apt-repository/README | 17 - .../debs/apt-repository/README-real-repository | 130 -- packaging/debs/apt-repository/distributions | 7 - packaging/debs/apt-repository/dupload.conf | 16 - packaging/generic-unix/Makefile | 24 - packaging/gentoo/ChangeLog | 33 - packaging/gentoo/Manifest | 16 - .../1.5.0/init.d/rabbitmq-cluster.example.confd | 5 - .../files/1.5.0/init.d/rabbitmq-server.confd | 38 - .../files/1.5.0/init.d/rabbitmq-server.initd | 132 -- .../gentoo/files/1.5.0/logrotate.d/rabbitmq-server | 12 - packaging/gentoo/files/1.5.0/man/rabbitmq-multi.1 | 176 --- packaging/gentoo/files/1.5.0/man/rabbitmq-server.1 | 199 --- packaging/gentoo/files/1.5.0/man/rabbitmq.5 | 186 --- packaging/gentoo/files/1.5.0/man/rabbitmqctl.1 | 421 ------ packaging/gentoo/files/1.5.0/misc/rabbitmq-invoke | 70 - .../files/1.5.0/patches/0001-change-conf-dir.patch | 24 - packaging/gentoo/metadata.xml | 20 - packaging/gentoo/rabbitmq-server-1.5.0-r1.ebuild | 175 --- packaging/gentoo/rabbitmq-server-1.5.0.ebuild | 39 - packaging/macports/Makefile | 0 packaging/macports/Portfile.in | 122 -- packaging/macports/net/rabbitmq-server/Portfile.in | 104 -- .../patch-org.macports.rabbitmq-server.plist.diff | 10 - packaging/windows/Makefile | 34 - packaging/windows/rabbitmq-service.pod | 131 -- scripts/rabbitmq-activate-plugins | 47 - scripts/rabbitmq-activate-plugins.bat | 60 - scripts/rabbitmq-deactivate-plugins | 37 - scripts/rabbitmq-deactivate-plugins.bat | 39 - scripts/rabbitmq-env | 53 - scripts/rabbitmq-multi | 0 scripts/rabbitmq-multi.bat | 88 -- scripts/rabbitmq-server | 0 scripts/rabbitmq-server.bat | 161 --- scripts/rabbitmq-service.bat | 234 ---- scripts/rabbitmqctl | 49 - scripts/rabbitmqctl.bat | 53 - src/bpqueue.erl | 296 ----- src/buffering_proxy.erl | 108 -- src/file_handle_cache.erl | 769 ----------- src/gen_server2.erl | 1144 ---------------- src/priority_queue.erl | 191 --- src/rabbit.erl | 0 src/rabbit_access_control.erl | 351 ----- src/rabbit_alarm.erl | 133 -- src/rabbit_amqqueue.erl | 0 src/rabbit_amqqueue_process.erl | 882 ------------- src/rabbit_amqqueue_sup.erl | 46 - src/rabbit_basic.erl | 143 -- src/rabbit_binary_generator.erl | 283 ---- src/rabbit_binary_parser.erl | 178 --- src/rabbit_capability.erl | 365 ------ src/rabbit_channel.erl | 0 src/rabbit_control.erl | 442 ------- src/rabbit_dialyzer.erl | 91 -- src/rabbit_error_logger.erl | 88 -- src/rabbit_error_logger_file_h.erl | 82 -- src/rabbit_exchange.erl | 665 ---------- src/rabbit_exchange_behaviour.erl | 48 - src/rabbit_exchange_events.erl | 108 -- src/rabbit_exchange_type.erl | 107 -- src/rabbit_exchange_type_direct.erl | 53 - src/rabbit_exchange_type_fanout.erl | 52 - src/rabbit_exchange_type_headers.erl | 127 -- src/rabbit_exchange_type_topic.erl | 90 -- src/rabbit_framing_channel.erl | 121 -- src/rabbit_guid.erl | 133 -- src/rabbit_heartbeat.erl | 100 -- src/rabbit_hooks.erl | 73 -- src/rabbit_limiter.erl | 199 --- src/rabbit_load.erl | 79 -- src/rabbit_log.erl | 150 --- src/rabbit_memory_monitor.erl | 292 ----- src/rabbit_misc.erl | 0 src/rabbit_mnesia.erl | 436 ------- src/rabbit_msg_file.erl | 141 -- src/rabbit_msg_store.erl | 1211 ----------------- src/rabbit_msg_store_ets_index.erl | 71 - src/rabbit_msg_store_gc.erl | 256 ---- src/rabbit_msg_store_misc.erl | 74 -- src/rabbit_multi.erl | 347 ----- src/rabbit_net.erl | 132 -- src/rabbit_networking.erl | 235 ---- src/rabbit_node_monitor.erl | 81 -- src/rabbit_persister.erl | 523 -------- src/rabbit_plugin.erl | 108 -- src/rabbit_plugin_activator.erl | 254 ---- src/rabbit_queue_index.erl | 885 ------------- src/rabbit_reader.erl | 789 ----------- src/rabbit_router.erl | 227 ---- src/rabbit_sasl_report_file_h.erl | 95 -- src/rabbit_sup.erl | 56 - src/rabbit_tests.erl | 1369 -------------------- src/rabbit_tracer.erl | 50 - src/rabbit_variable_queue.erl | 1134 ---------------- src/rabbit_writer.erl | 211 --- src/random_distributions.erl | 38 - src/tcp_acceptor.erl | 106 -- src/tcp_acceptor_sup.erl | 46 - src/tcp_client_sup.erl | 49 - src/tcp_listener.erl | 98 -- src/tcp_listener_sup.erl | 66 - src/vm_memory_monitor.erl | 337 ----- 143 files changed, 24136 deletions(-) delete mode 100644 INSTALL.in delete mode 100644 LICENSE delete mode 100644 LICENSE-MPL-RabbitMQ delete mode 100644 Makefile delete mode 100644 README.in delete mode 100755 calculate-relative delete mode 100644 codegen.py delete mode 100644 docs/rabbitmq-activate-plugins.1.pod delete mode 100644 docs/rabbitmq-deactivate-plugins.1.pod delete mode 100644 docs/rabbitmq-multi.1.pod delete mode 100644 docs/rabbitmq-server.1.pod delete mode 100644 docs/rabbitmq.conf.5.pod delete mode 100644 docs/rabbitmqctl.1.pod delete mode 100644 ebin/rabbit.app delete mode 100644 ebin/rabbit_app.in delete mode 100644 include/rabbit.hrl delete mode 100644 include/rabbit_exchange_behaviour_spec.hrl delete mode 100644 include/rabbit_framing_spec.hrl delete mode 100644 include/rabbit_msg_store.hrl delete mode 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mode 100644 src/rabbit_variable_queue.erl delete mode 100644 src/rabbit_writer.erl delete mode 100644 src/random_distributions.erl delete mode 100644 src/tcp_acceptor.erl delete mode 100644 src/tcp_acceptor_sup.erl delete mode 100644 src/tcp_client_sup.erl delete mode 100644 src/tcp_listener.erl delete mode 100644 src/tcp_listener_sup.erl delete mode 100644 src/vm_memory_monitor.erl diff --git a/INSTALL.in b/INSTALL.in deleted file mode 100644 index d1fa81df..00000000 --- a/INSTALL.in +++ /dev/null @@ -1,10 +0,0 @@ -Please see http://www.rabbitmq.com/install.html for install -instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/LICENSE b/LICENSE deleted file mode 100644 index d7042b92..00000000 --- a/LICENSE +++ /dev/null @@ -1,5 +0,0 @@ -This package, the RabbitMQ server is licensed under the MPL. For the -MPL, please see LICENSE-MPL-RabbitMQ. - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. diff --git a/LICENSE-MPL-RabbitMQ b/LICENSE-MPL-RabbitMQ deleted file mode 100644 index 2d0a7b1d..00000000 --- a/LICENSE-MPL-RabbitMQ +++ /dev/null @@ -1,473 +0,0 @@ - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developers of the Original Code are LShift Ltd, - Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. - - Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, - Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd - are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial - Technologies LLC, and Rabbit Technologies Ltd. - - Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift - Ltd. Portions created by Cohesive Financial Technologies LLC are - Copyright (C) 2007-2009 Cohesive Financial Technologies - LLC. Portions created by Rabbit Technologies Ltd are Copyright - (C) 2007-2009 Rabbit Technologies Ltd. - - All Rights Reserved. - - Contributor(s): ______________________________________.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] - - - diff --git a/Makefile b/Makefile deleted file mode 100644 index e87ea242..00000000 --- a/Makefile +++ /dev/null @@ -1,232 +0,0 @@ - -TMPDIR ?= /tmp - -RABBITMQ_NODENAME ?= rabbit -RABBITMQ_SERVER_START_ARGS ?= -RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia -RABBITMQ_LOG_BASE ?= $(TMPDIR) - -SOURCE_DIR=src -EBIN_DIR=ebin -INCLUDE_DIR=include -SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) -TARGETS=$(EBIN_DIR)/rabbit_framing.beam $(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam,$(SOURCES)) -WEB_URL=http://stage.rabbitmq.com/ -MANPAGES=$(patsubst %.pod, %.gz, $(wildcard docs/*.[0-9].pod)) - -ifeq ($(shell python -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python -else -ifeq ($(shell python2.6 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.6 -else -ifeq ($(shell python2.5 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.5 -else -# Hmm. Missing simplejson? -PYTHON=python -endif -endif -endif - -BASIC_PLT=basic.plt -RABBIT_PLT=rabbit.plt - -ifndef USE_SPECS -# our type specs rely on features / bug fixes in dialyzer that are -# only available in R13B01 upwards (R13B01 is eshell 5.7.2) -# -# NB: the test assumes that version number will only contain single digits -USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.1" ]; then echo "true"; else echo "false"; fi) -endif - -#other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(shell [ $(USE_SPECS) = "true" ] && echo "-Duse_specs") - -VERSION=0.0.0 -TARBALL_NAME=rabbitmq-server-$(VERSION) -TARGET_SRC_DIR=dist/$(TARBALL_NAME) - -SIBLING_CODEGEN_DIR=../rabbitmq-codegen/ -AMQP_CODEGEN_DIR=$(shell [ -d $(SIBLING_CODEGEN_DIR) ] && echo $(SIBLING_CODEGEN_DIR) || echo codegen) -AMQP_SPEC_JSON_PATH=$(AMQP_CODEGEN_DIR)/amqp-0.8.json - -ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e - -ERL_EBIN=erl -noinput -pa $(EBIN_DIR) - -all: $(TARGETS) - -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl $(INCLUDE_DIR)/rabbit_framing.hrl $(INCLUDE_DIR)/rabbit.hrl - erlc $(ERLC_OPTS) $< -<<<<<<< local -# ERLC_EMULATOR="erl -smp" erlc $(ERLC_OPTS) $< -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl $(INCLUDE_DIR)/rabbit_framing.hrl $(INCLUDE_DIR)/rabbit.hrl $(EBIN_DIR)/gen_server2.beam -======= - -$(EBIN_DIR)/rabbit_exchange_behaviour.beam: $(SOURCE_DIR)/rabbit_exchange_behaviour.erl - erlc $(ERLC_OPTS) $< - -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl $(INCLUDE_DIR)/rabbit_framing.hrl $(INCLUDE_DIR)/rabbit.hrl $(EBIN_DIR)/gen_server2.beam $(EBIN_DIR)/rabbit_exchange_behaviour.beam - erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< -# ERLC_EMULATOR="erl -smp" erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< ->>>>>>> other - -$(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_PATH) - $(PYTHON) codegen.py header $(AMQP_SPEC_JSON_PATH) $@ - -$(SOURCE_DIR)/rabbit_framing.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_PATH) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_PATH) $@ - -dialyze: $(BEAM_TARGETS) $(BASIC_PLT) - $(ERL_EBIN) -eval \ - "rabbit_dialyzer:halt_with_code(rabbit_dialyzer:dialyze_files(\"$(BASIC_PLT)\", \"$(BEAM_TARGETS)\"))." - -dialyze: $(TARGETS) -create-plt: $(RABBIT_PLT) - -$(RABBIT_PLT): $(BEAM_TARGETS) $(BASIC_PLT) - cp $(BASIC_PLT) $@ - $(ERL_EBIN) -eval \ - "rabbit_dialyzer:halt_with_code(rabbit_dialyzer:add_to_plt(\"$@\", \"$(BEAM_TARGETS)\"))." - -$(BASIC_PLT): $(BEAM_TARGETS) - if [ -f $@ ]; then \ - touch $@; \ - else \ - $(ERL_EBIN) -eval \ - "rabbit_dialyzer:halt_with_code(rabbit_dialyzer:create_basic_plt(\"$@\"))."; \ - fi - -clean: - rm -f $(EBIN_DIR)/*.beam - rm -f $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script - rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCE_DIR)/rabbit_framing.erl codegen.pyc - rm -f docs/*.[0-9].gz - rm -f $(RABBIT_PLT) - -cleandb: - rm -rf $(RABBITMQ_MNESIA_DIR)/* - -############ various tasks to interact with RabbitMQ ################### - -BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\ - RABBITMQ_NODE_IP_ADDRESS="$(RABBITMQ_NODE_IP_ADDRESS)" \ - RABBITMQ_NODE_PORT="$(RABBITMQ_NODE_PORT)" \ - RABBITMQ_LOG_BASE="$(RABBITMQ_LOG_BASE)" \ - RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" \ - RABBITMQ_LOAD_PATH="$(RABBITMQ_LOAD_PATH)" - -run: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="-s rabbit $(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-node: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-tests: all - echo "rabbit_tests:all_tests()." | $(ERL_CALL) - -start-background-node: - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server ; sleep 1 - -start-rabbit-on-node: all - echo "rabbit:start()." | $(ERL_CALL) - -stop-rabbit-on-node: all - echo "rabbit:stop()." | $(ERL_CALL) - -force-snapshot: all - echo "rabbit_persister:force_snapshot()." | $(ERL_CALL) - -stop-node: - -$(ERL_CALL) -q - -# code coverage will be created for subdirectory "ebin" of COVER_DIR -COVER_DIR=. - -start-cover: all - echo "cover:start(), rabbit_misc:enable_cover([\"$(COVER_DIR)\"])." | $(ERL_CALL) - -stop-cover: all - echo "rabbit_misc:report_cover(), cover:stop()." | $(ERL_CALL) - cat cover/summary.txt - -######################################################################## - -srcdist: distclean - mkdir -p $(TARGET_SRC_DIR)/codegen - cp -r ebin src include LICENSE LICENSE-MPL-RabbitMQ $(TARGET_SRC_DIR) - cp INSTALL.in $(TARGET_SRC_DIR)/INSTALL - elinks -dump -no-references -no-numbering $(WEB_URL)install.html \ - >> $(TARGET_SRC_DIR)/INSTALL - cp README.in $(TARGET_SRC_DIR)/README - elinks -dump -no-references -no-numbering $(WEB_URL)build-server.html \ -<<<<<<< /tmp/rabbitmq-server/Makefile - >> $(TARGET_SRC_DIR)/README - sed -i 's/%%VERSION%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit.app -======= - >> $(TARGET_SRC_DIR)/BUILD - sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save ->>>>>>> /tmp/Makefile~other.J-SLyR - - cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ - cp codegen.py Makefile generate_app calculate-relative $(TARGET_SRC_DIR) - - cp -r scripts $(TARGET_SRC_DIR) - cp -r docs $(TARGET_SRC_DIR) - chmod 0755 $(TARGET_SRC_DIR)/scripts/* - - (cd dist; tar -zcf $(TARBALL_NAME).tar.gz $(TARBALL_NAME)) - (cd dist; zip -r $(TARBALL_NAME).zip $(TARBALL_NAME)) - rm -rf $(TARGET_SRC_DIR) - -distclean: clean - $(MAKE) -C $(AMQP_CODEGEN_DIR) distclean - rm -rf dist - find . -regex '.*\(~\|#\|\.swp\|\.dump\)' -exec rm {} \; - -%.gz: %.pod - pod2man \ - -n `echo $$(basename $*) | sed -e 's/\.[[:digit:]]\+//'` \ - -s `echo $$(basename $*) | sed -e 's/.*\.\([^.]\+\)/\1/'` \ - -c "RabbitMQ AMQP Server" \ - -d "" \ - -r "" \ - $< | gzip --best > $@ - -docs_all: $(MANPAGES) - -install: SCRIPTS_REL_PATH=$(shell ./calculate-relative $(TARGET_DIR)/sbin $(SBIN_DIR)) -install: all docs_all install_dirs - @[ -n "$(TARGET_DIR)" ] || (echo "Please set TARGET_DIR."; false) - @[ -n "$(SBIN_DIR)" ] || (echo "Please set SBIN_DIR."; false) - @[ -n "$(MAN_DIR)" ] || (echo "Please set MAN_DIR."; false) - - mkdir -p $(TARGET_DIR) - cp -r ebin include LICENSE LICENSE-MPL-RabbitMQ INSTALL $(TARGET_DIR) - - chmod 0755 scripts/* - for script in rabbitmq-env rabbitmq-server rabbitmqctl rabbitmq-multi rabbitmq-activate-plugins rabbitmq-deactivate-plugins; do \ - cp scripts/$$script $(TARGET_DIR)/sbin; \ - [ -e $(SBIN_DIR)/$$script ] || ln -s $(SCRIPTS_REL_PATH)/$$script $(SBIN_DIR)/$$script; \ - done - for section in 1 5; do \ - mkdir -p $(MAN_DIR)/man$$section; \ - for manpage in docs/*.$$section.pod; do \ - cp docs/`basename $$manpage .pod`.gz $(MAN_DIR)/man$$section; \ - done; \ - done - -install_dirs: - mkdir -p $(SBIN_DIR) - mkdir -p $(TARGET_DIR)/sbin diff --git a/README.in b/README.in deleted file mode 100644 index 0e70d0e7..00000000 --- a/README.in +++ /dev/null @@ -1,10 +0,0 @@ -Please see http://www.rabbitmq.com/build-server.html for build -instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/calculate-relative b/calculate-relative deleted file mode 100755 index 3af18e8f..00000000 --- a/calculate-relative +++ /dev/null @@ -1,45 +0,0 @@ -#!/usr/bin/env python -# -# relpath.py -# R.Barran 30/08/2004 -# Retrieved from http://code.activestate.com/recipes/302594/ - -import os -import sys - -def relpath(target, base=os.curdir): - """ - Return a relative path to the target from either the current dir or an optional base dir. - Base can be a directory specified either as absolute or relative to current dir. - """ - - if not os.path.exists(target): - raise OSError, 'Target does not exist: '+target - - if not os.path.isdir(base): - raise OSError, 'Base is not a directory or does not exist: '+base - - base_list = (os.path.abspath(base)).split(os.sep) - target_list = (os.path.abspath(target)).split(os.sep) - - # On the windows platform the target may be on a completely different drive from the base. - if os.name in ['nt','dos','os2'] and base_list[0] <> target_list[0]: - raise OSError, 'Target is on a different drive to base. Target: '+target_list[0].upper()+', base: '+base_list[0].upper() - - # Starting from the filepath root, work out how much of the filepath is - # shared by base and target. - for i in range(min(len(base_list), len(target_list))): - if base_list[i] <> target_list[i]: break - else: - # If we broke out of the loop, i is pointing to the first differing path elements. - # If we didn't break out of the loop, i is pointing to identical path elements. - # Increment i so that in all cases it points to the first differing path elements. - i+=1 - - rel_list = [os.pardir] * (len(base_list)-i) + target_list[i:] - if (len(rel_list) == 0): - return "." - return os.path.join(*rel_list) - -if __name__ == "__main__": - print(relpath(sys.argv[1], sys.argv[2])) diff --git a/codegen.py b/codegen.py deleted file mode 100644 index 6f39574f..00000000 --- a/codegen.py +++ /dev/null @@ -1,387 +0,0 @@ -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2009 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2009 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -from __future__ import nested_scopes - -import sys -sys.path.append("../rabbitmq-codegen") # in case we're next to an experimental revision -sys.path.append("codegen") # in case we're building from a distribution package - -from amqp_codegen import * -import string -import re - -erlangTypeMap = { - 'octet': 'octet', - 'shortstr': 'shortstr', - 'longstr': 'longstr', - 'short': 'shortint', - 'long': 'longint', - 'longlong': 'longlongint', - 'bit': 'bit', - 'table': 'table', - 'timestamp': 'timestamp', -} - -# Coming up with a proper encoding of AMQP tables in JSON is too much -# hassle at this stage. Given that the only default value we are -# interested in is for the empty table, we only support that. -def convertTable(d): - if len(d) == 0: - return "[]" - else: raise 'Non-empty table defaults not supported', d - -erlangDefaultValueTypeConvMap = { - bool : lambda x: str(x).lower(), - str : lambda x: "<<\"" + x + "\">>", - int : lambda x: str(x), - float : lambda x: str(x), - dict: convertTable, - unicode: lambda x: "<<\"" + x.encode("utf-8") + "\">>" -} - -def erlangize(s): - s = s.replace('-', '_') - s = s.replace(' ', '_') - return s - -AmqpMethod.erlangName = lambda m: "'" + erlangize(m.klass.name) + '.' + erlangize(m.name) + "'" - -def erlangConstantName(s): - return '_'.join(re.split('[- ]', s.upper())) - -class PackedMethodBitField: - def __init__(self, index): - self.index = index - self.domain = 'bit' - self.contents = [] - - def extend(self, f): - self.contents.append(f) - - def count(self): - return len(self.contents) - - def full(self): - return self.count() == 8 - -def printFileHeader(): - print """%% Autogenerated code. Do not edit. -%% -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%%""" - -def genErl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldTypeList(fields): - return '[' + ', '.join([erlType(f.domain) for f in fields]) + ']' - - def fieldNameList(fields): - return '[' + ', '.join([erlangize(f.name) for f in fields]) + ']' - - def fieldTempList(fields): - return '[' + ', '.join(['F' + str(f.index) for f in fields]) + ']' - - def fieldMapList(fields): - return ', '.join([erlangize(f.name) + " = F" + str(f.index) for f in fields]) - - def genLookupMethodName(m): - print "lookup_method_name({%d, %d}) -> %s;" % (m.klass.index, m.index, m.erlangName()) - - def genMethodId(m): - print "method_id(%s) -> {%d, %d};" % (m.erlangName(), m.klass.index, m.index) - - def genMethodHasContent(m): - print "method_has_content(%s) -> %s;" % (m.erlangName(), str(m.hasContent).lower()) - - def genMethodIsSynchronous(m): - hasNoWait = "nowait" in fieldNameList(m.arguments) - if m.isSynchronous and hasNoWait: - print "is_method_synchronous(#%s{nowait = NoWait}) -> not(NoWait);" % (m.erlangName()) - else: - print "is_method_synchronous(#%s{}) -> %s;" % (m.erlangName(), str(m.isSynchronous).lower()) - - def genMethodFieldTypes(m): - """Not currently used - may be useful in future?""" - print "method_fieldtypes(%s) -> %s;" % (m.erlangName(), fieldTypeList(m.arguments)) - - def genMethodFieldNames(m): - print "method_fieldnames(%s) -> %s;" % (m.erlangName(), fieldNameList(m.arguments)) - - def packMethodFields(fields): - packed = [] - bitfield = None - for f in fields: - if erlType(f.domain) == 'bit': - if not(bitfield) or bitfield.full(): - bitfield = PackedMethodBitField(f.index) - packed.append(bitfield) - bitfield.extend(f) - else: - bitfield = None - packed.append(f) - return packed - - def methodFieldFragment(f): - type = erlType(f.domain) - p = 'F' + str(f.index) - if type == 'shortstr': - return p+'Len:8/unsigned, '+p+':'+p+'Len/binary' - elif type == 'longstr': - return p+'Len:32/unsigned, '+p+':'+p+'Len/binary' - elif type == 'octet': - return p+':8/unsigned' - elif type == 'shortint': - return p+':16/unsigned' - elif type == 'longint': - return p+':32/unsigned' - elif type == 'longlongint': - return p+':64/unsigned' - elif type == 'timestamp': - return p+':64/unsigned' - elif type == 'bit': - return p+'Bits:8' - elif type == 'table': - return p+'Len:32/unsigned, '+p+'Tab:'+p+'Len/binary' - - def genFieldPostprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - for index in range(f.count()): - print " F%d = ((F%dBits band %d) /= 0)," % \ - (f.index + index, - f.index, - 1 << index) - elif type == 'table': - print " F%d = rabbit_binary_parser:parse_table(F%dTab)," % \ - (f.index, f.index) - else: - pass - - def genDecodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - binaryPattern = ', '.join([methodFieldFragment(f) for f in packedFields]) - if binaryPattern: - restSeparator = ', ' - else: - restSeparator = '' - recordConstructorExpr = '#%s{%s}' % (m.erlangName(), fieldMapList(m.arguments)) - print "decode_method_fields(%s, <<%s>>) ->" % (m.erlangName(), binaryPattern) - genFieldPostprocessing(packedFields) - print " %s;" % (recordConstructorExpr,) - - def genDecodeProperties(c): - print "decode_properties(%d, PropBin) ->" % (c.index) - print " %s = rabbit_binary_parser:parse_properties(%s, PropBin)," % \ - (fieldTempList(c.fields), fieldTypeList(c.fields)) - print " #'P_%s'{%s};" % (erlangize(c.name), fieldMapList(c.fields)) - - def genFieldPreprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - print " F%dBits = (%s)," % \ - (f.index, - ' bor '.join(['(bitvalue(F%d) bsl %d)' % (x.index, x.index - f.index) - for x in f.contents])) - elif type == 'table': - print " F%dTab = rabbit_binary_generator:generate_table(F%d)," % (f.index, f.index) - print " F%dLen = size(F%dTab)," % (f.index, f.index) - elif type in ['shortstr', 'longstr']: - print " F%dLen = size(F%d)," % (f.index, f.index) - else: - pass - - def genEncodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - print "encode_method_fields(#%s{%s}) ->" % (m.erlangName(), fieldMapList(m.arguments)) - genFieldPreprocessing(packedFields) - print " <<%s>>;" % (', '.join([methodFieldFragment(f) for f in packedFields])) - - def genEncodeProperties(c): - print "encode_properties(#'P_%s'{%s}) ->" % (erlangize(c.name), fieldMapList(c.fields)) - print " rabbit_binary_generator:encode_properties(%s, %s);" % \ - (fieldTypeList(c.fields), fieldTempList(c.fields)) - - def messageConstantClass(cls): - # We do this because 0.8 uses "soft error" and 8.1 uses "soft-error". - return erlangConstantName(cls) - - def genLookupException(c,v,cls): - mCls = messageConstantClass(cls) - if mCls == 'SOFT_ERROR': genLookupException1(c,'false') - elif mCls == 'HARD_ERROR': genLookupException1(c, 'true') - elif mCls == '': pass - else: raise 'Unknown constant class', cls - - def genLookupException1(c,hardErrorBoolStr): - n = erlangConstantName(c) - print 'lookup_amqp_exception(%s) -> {%s, ?%s, <<"%s">>};' % \ - (n.lower(), hardErrorBoolStr, n, n) - - def genAmqpException(c,v,cls): - n = erlangConstantName(c) - print 'amqp_exception(?%s) -> %s;' % \ - (n, n.lower()) - - methods = spec.allMethods() - - printFileHeader() - print """-module(rabbit_framing). --include("rabbit_framing.hrl"). - --export([lookup_method_name/1]). - --export([method_id/1]). --export([method_has_content/1]). --export([is_method_synchronous/1]). --export([method_fieldnames/1]). --export([decode_method_fields/2]). --export([decode_properties/2]). --export([encode_method_fields/1]). --export([encode_properties/1]). --export([lookup_amqp_exception/1]). --export([amqp_exception/1]). - -bitvalue(true) -> 1; -bitvalue(false) -> 0; -bitvalue(undefined) -> 0. -""" - for m in methods: genLookupMethodName(m) - print "lookup_method_name({_ClassId, _MethodId} = Id) -> exit({unknown_method_id, Id})." - - for m in methods: genMethodId(m) - print "method_id(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodHasContent(m) - print "method_has_content(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodIsSynchronous(m) - print "is_method_synchronous(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodFieldNames(m) - print "method_fieldnames(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genDecodeMethodFields(m) - print "decode_method_fields(Name, BinaryFields) ->" - print " rabbit_misc:frame_error(Name, BinaryFields)." - - for c in spec.allClasses(): genDecodeProperties(c) - print "decode_properties(ClassId, _BinaryFields) -> exit({unknown_class_id, ClassId})." - - for m in methods: genEncodeMethodFields(m) - print "encode_method_fields(Record) -> exit({unknown_method_name, element(1, Record)})." - - for c in spec.allClasses(): genEncodeProperties(c) - print "encode_properties(Record) -> exit({unknown_properties_record, Record})." - - for (c,v,cls) in spec.constants: genLookupException(c,v,cls) - print "lookup_amqp_exception(Code) ->" - print " rabbit_log:warning(\"Unknown AMQP error code '~p'~n\", [Code])," - print " {true, ?INTERNAL_ERROR, <<\"INTERNAL_ERROR\">>}." - - for(c,v,cls) in spec.constants: genAmqpException(c,v,cls) - print "amqp_exception(_Code) -> undefined." - -def genHrl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldNameList(fields): - return ', '.join([erlangize(f.name) for f in fields]) - - def fieldNameListDefaults(fields): - def fillField(field): - result = erlangize(f.name) - if field.defaultvalue != None: - conv_fn = erlangDefaultValueTypeConvMap[type(field.defaultvalue)] - result += ' = ' + conv_fn(field.defaultvalue) - return result - return ', '.join([fillField(f) for f in fields]) - - methods = spec.allMethods() - - printFileHeader() - print "-define(PROTOCOL_VERSION_MAJOR, %d)." % (spec.major) - print "-define(PROTOCOL_VERSION_MINOR, %d)." % (spec.minor) - print "-define(PROTOCOL_PORT, %d)." % (spec.port) - - for (c,v,cls) in spec.constants: - print "-define(%s, %s)." % (erlangConstantName(c), v) - - print "%% Method field records." - for m in methods: - print "-record(%s, {%s})." % (m.erlangName(), fieldNameListDefaults(m.arguments)) - - print "%% Class property records." - for c in spec.allClasses(): - print "-record('P_%s', {%s})." % (erlangize(c.name), fieldNameList(c.fields)) - -def generateErl(specPath): - genErl(AmqpSpec(specPath)) - -def generateHrl(specPath): - genHrl(AmqpSpec(specPath)) - -if __name__ == "__main__": - do_main(generateHrl, generateErl) - diff --git a/docs/rabbitmq-activate-plugins.1.pod b/docs/rabbitmq-activate-plugins.1.pod deleted file mode 100644 index 42f0c4d2..00000000 --- a/docs/rabbitmq-activate-plugins.1.pod +++ /dev/null @@ -1,37 +0,0 @@ -=head1 NAME - -rabbitmq-activate-plugins - command line tool for activating plugins -in a RabbitMQ broker - -=head1 SYNOPSIS - -rabbitmq-activate-plugins - -=head1 DESCRIPTION - -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -rabbitmq-activate-plugins is a command line tool for activating -plugins installed into the broker's plugins directory. - -=head1 EXAMPLES - -To activate all of the installed plugins in the current RabbitMQ install, -execute: - - rabbitmq-activate-plugins - -=head1 SEE ALSO - -L, L, L, -L, L - -=head1 AUTHOR - -The RabbitMQ Team - -=head1 REFERENCES - -RabbitMQ Web Site: L diff --git a/docs/rabbitmq-deactivate-plugins.1.pod b/docs/rabbitmq-deactivate-plugins.1.pod deleted file mode 100644 index eb4fbb90..00000000 --- a/docs/rabbitmq-deactivate-plugins.1.pod +++ /dev/null @@ -1,37 +0,0 @@ -=head1 NAME - -rabbitmq-deactivate-plugins - command line tool for deactivating plugins -in a RabbitMQ broker - -=head1 SYNOPSIS - -rabbitmq-deactivate-plugins - -=head1 DESCRIPTION - -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -rabbitmq-deactivate-plugins is a command line tool for deactivating -plugins installed into the broker. - -=head1 EXAMPLES - -To deactivate all of the installed plugins in the current RabbitMQ install, -execute: - - rabbitmq-deactivate-plugins - -=head1 SEE ALSO - -L, L, L, -L, L - -=head1 AUTHOR - -The RabbitMQ Team - -=head1 REFERENCES - -RabbitMQ Web Site: L diff --git a/docs/rabbitmq-multi.1.pod b/docs/rabbitmq-multi.1.pod deleted file mode 100644 index 640609ee..00000000 --- a/docs/rabbitmq-multi.1.pod +++ /dev/null @@ -1,59 +0,0 @@ -=head1 NAME - -rabbitmq-multi - start/stop local cluster RabbitMQ nodes - -=head1 SYNOPSIS - -rabbitmq-multi I [command option] - -=head1 DESCRIPTION - -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -rabbitmq-multi scripts allows for easy set-up of a cluster on a single -machine. - -See also L for configuration information. - -=head1 COMMANDS - -=over - -=item start_all I - -Start count nodes with unique names, listening on all IP addresses and -on sequential ports starting from 5672. - -=item status - -Print the status of all running RabbitMQ nodes. - -=item stop_all - -Stop all local RabbitMQ nodes, - -=item rotate_logs - -Rotate log files for all local and running RabbitMQ nodes. - -=back - -=head1 EXAMPLES - -Start 3 local RabbitMQ nodes with unique, sequential port numbers: - - rabbitmq-multi start_all 3 - -=head1 SEE ALSO - -L, L, L - -=head1 AUTHOR - -The RabbitMQ Team - -=head1 REFERENCES - -RabbitMQ Web Site: L diff --git a/docs/rabbitmq-server.1.pod b/docs/rabbitmq-server.1.pod deleted file mode 100644 index d74ab8d9..00000000 --- a/docs/rabbitmq-server.1.pod +++ /dev/null @@ -1,88 +0,0 @@ -=head1 NAME - -rabbitmq-server - start RabbitMQ AMQP server - -=head1 SYNOPSIS - -rabbitmq-server [-detached] - -=head1 DESCRIPTION - -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -Running rabbitmq-server in the foreground displays a banner message, -and reports on progress in the startup sequence, concluding with the -message "broker running", indicating that the RabbitMQ broker has been -started successfully. To shut down the server, just terminate the -process or use L. - -=head1 ENVIRONMENT - -=over - -=item B - -Defaults to F. Set this to the directory where -Mnesia database files should be placed. - -=item B - -Defaults to F. Log files generated by the server will -be placed in this directory. - -=item B - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - B should be unique per -erlang-node-and-machine combination. See clustering on a single -machine guide at -L for details. - -=item B - -Defaults to 0.0.0.0. This can be changed if you only want to bind to -one network interface. - -=item B - -Defaults to 5672. - -=item B - -Defaults to F. If this file is -present it is used by the server to auto-configure a RabbitMQ cluster. -See the clustering guide at L -for details. - -=back - -=head1 OPTIONS - -=over - -=item B<-detached> - -start the server process in the background - -=back - -=head1 EXAMPLES - -Run RabbitMQ AMQP server in the background: - - rabbitmq-server -detached - -=head1 SEE ALSO - -L, L, L - -=head1 AUTHOR - -The RabbitMQ Team - -=head1 REFERENCES - -RabbitMQ Web Site: L - diff --git a/docs/rabbitmq.conf.5.pod b/docs/rabbitmq.conf.5.pod deleted file mode 100644 index a7bf4c09..00000000 --- a/docs/rabbitmq.conf.5.pod +++ /dev/null @@ -1,69 +0,0 @@ -=head1 NAME - -F - default settings for RabbitMQ AMQP -server - -=head1 DESCRIPTION - -F contains variable settings that override the -defaults built in to the RabbitMQ startup scripts. - -The file is interpreted by the system shell, and so should consist of -a sequence of shell environment variable definitions. Normal shell -syntax is permitted (since the file is sourced using the shell "." -operator), including line comments starting with "#". - -In order of preference, the startup scripts get their values from the -environment, from F and finally from the -built-in default values. For example, for the B -setting, - -=over - -=item B - -from the environment is checked first. If it is absent or equal to the -empty string, then - -=item B - -from L is checked. If it is also absent -or set equal to the empty string then the default value from the -startup script is used. - -The variable names in /etc/rabbitmq/rabbitmq.conf are always equal to the -environment variable names, with the B prefix removed: -B from the environment becomes B in the -F file, etc. - -=back - -=head1 EXAMPLES - -The following is an example of a complete -F file that overrides the default Erlang -node name from "rabbit" to "hare": - - # I am a complete /etc/rabbitmq/rabbitmq.conf file. - # Comment lines start with a hash character. - # This is a /bin/sh script file - use ordinary envt var syntax - NODENAME=hare - -=head1 SEE ALSO - -L, L, L - -=head1 AUTHOR - -Originally written by The RabbitMQ Team - -=head1 COPYRIGHT - -This package, the RabbitMQ server is licensed under the MPL. - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. - -=head1 REFERENCES - -RabbitMQ Web Site: L diff --git a/docs/rabbitmqctl.1.pod b/docs/rabbitmqctl.1.pod deleted file mode 100644 index 827707af..00000000 --- a/docs/rabbitmqctl.1.pod +++ /dev/null @@ -1,468 +0,0 @@ -=head1 NAME - -rabbitmqctl - command line tool for managing a RabbitMQ broker - -=head1 SYNOPSIS - -rabbitmqctl [-n I] I<> [command options] - -=head1 DESCRIPTION - -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -rabbitmqctl is a command line tool for managing a RabbitMQ broker. -It performs all actions by connecting to one of the broker's nodes. - - -=head1 OPTIONS - -=over - -=item B<-n> I - -Default node is C, where server is the local host. On -a host named C, the node name of the RabbitMQ -Erlang node will usually be rabbit@server (unless RABBITMQ_NODENAME -has been set to some non-default value at broker startup time). The -output of hostname -s is usually the correct suffix to use after the -"@" sign. See rabbitmq-server(1) for details of configuring the -RabbitMQ broker. - -=item B<-q> - -Quiet output mode is selected with the B<-q> flag. Informational -messages are suppressed when quiet mode is in effect. - -=back - -=head1 COMMANDS - -=head2 APPLICATION AND CLUSTER MANAGEMENT - -=over - -=item stop - -Stop the Erlang node on which RabbitMQ broker is running. - -=item stop_app - -Stop the RabbitMQ application, leaving the Erlang node running. This -command is typically run prior to performing other management actions -that require the RabbitMQ application to be stopped, e.g. I. - -=item start_app - -Start the RabbitMQ application. This command is typically run prior -to performing other management actions that require the RabbitMQ -application to be stopped, e.g. I. - -=item status - -Display various information about the RabbitMQ broker, such as whether -the RabbitMQ application on the current node, its version number, what -nodes are part of the broker, which of these are running. - -=item reset - -Return a RabbitMQ node to its virgin state. Removes the node from any -cluster it belongs to, removes all data from the management database, -such as configured users, vhosts and deletes all persistent messages. - -=item force_reset - -The same as I command, but resets the node unconditionally, -regardless of the current management database state and cluster -configuration. It should only be used as a last resort if the -database or cluster configuration has been corrupted. - -=item rotate_logs [suffix] - -Instruct the RabbitMQ node to rotate the log files. The RabbitMQ -broker will attempt to append the current contents of the log file to -the file with the name composed of the original name and the -suffix. It will create a new file if such a file does not already -exist. When no I is specified, the empty log file is simply -created at the original location; no rotation takes place. When an -error occurs while appending the contents of the old log file, the -operation behaves in the same way as if no I was specified. -This command might be helpful when you are e.g. writing your own -logrotate script and you do not want to restart the RabbitMQ node. - -=item cluster I ... - -Instruct the node to become member of a cluster with the specified -nodes determined by I option(s). See -L for more information about -clustering. - -=back - -=head2 USER MANAGEMENT - -=over - -=item add_user I I -Create a user named I with (initial) password I. - -=item delete_user I - -Delete the user named I. - -=item change_password I I - -Change the password for the user named I to I. - -=item list_users - -List all users, one per line. - -=back - -=head2 ACCESS CONTROL - -=over - -=item add_vhost I -<<<<<<< local - That command deletes also all its exchanges, queues and user mappings. -======= ->>>>>>> other - -Create a new virtual host called I. - -=item delete_vhost I -Delete a virtual host I. This command deletes also all its -exchanges, queues and user mappings. - -=item list_vhosts - -List all virtual hosts, one per line. - -=item set_permissions [-p I] I I I I - -Set the permissions for the user named I in the virtual host -I, granting I, I and I access to -resources with names matching the first, second and third I, -respectively. - -=item clear_permissions [-p I] I - -Remove the permissions for the user named I in the virtual -host I. - -=item list_permissions [-p I] - -List all the users and their permissions in the virtual host -I. Each output line contains the username and their -I, I and I access regexps, separated by tab -characters. - -=item list_user_permissions I - -List the permissions of the user named I across all virtual -hosts. - -=back - -=head2 SERVER STATUS - -=over - -=item list_queues [-p I] [I ...] - -List queue information by virtual host. Each line printed -describes a queue, with the requested I values -separated by tab characters. If no Is are -specified then I and I are assumed. - -=back - -=head3 Queue information items - -=over - -=item name - -name of the queue - -=item durable - -whether the queue survives server restarts - -=item auto_delete - -whether the queue will be deleted when no longer used - -=item arguments - -queue arguments - -=item pid - -id of the Erlang process associated with the queue - -=item messages_ready - -number of messages ready to be delivered to clients - -=item messages_unacknowledged - -number of messages delivered to clients but not yet acknowledged - -=item messages_uncommitted - -number of messages published in as yet uncommitted transactions - -=item messages - -sum of ready, unacknowledged and uncommitted messages - -=item acks_uncommitted - -number of acknowledgements received in as yet uncommitted transactions - -=item consumers - -number of consumers - -=item transactions - -number of transactions - -=item memory - -bytes of memory consumed by the Erlang process for the queue, -including stack, heap and internal structures - -storage_mode - whether the queue is currently in disk storage mode, in which all -messages are stored only on disk, or in mixed storage mode, where -messages are stored in memory and on disk only if necessary - -pinned - whether the queue has been pinned to disk only mode or not. - -=back - -=over - -=item list_exchanges [-p I] [I ...] - -List queue information by virtual host. Each line printed describes an -exchange, with the requested I values separated by -tab characters. If no Is are specified then I -and I are assumed. - -=back - -=head3 Exchange information items - -=over - -=item name - -name of the exchange - -=item type - -exchange type (B, B, B, or B) - -=item durable - -whether the exchange survives server restarts - -=item auto_delete - -whether the exchange is deleted when no longer used - -=item arguments - -exchange arguments - -=back - -=over - -=item list_bindings [-p I] - -List bindings by virtual host. Each line printed describes a binding, -with the exchange name, queue name, routing key and arguments, -separated by tab characters. - -=item list_connections [I ...] - -List queue information by virtual host. Each line printed describes an -connection, with the requested I values separated -by tab characters. If no Is are specified then -I, I, I and I are assumed. - -=back - -=head3 Connection information items - -=over - -=item node - -id of the Erlang process associated with the connection - -=item address - -server IP number - -=item port - -server port - -=item peer_address - -peer address - -=item peer_port - -peer port - -=item state - -connection state (B, B, B, B, -B, B, B) - -=item channels - -number of channels using the connection - -=item user - -username associated with the connection - -=item vhost - -virtual host - -=item timeout - -connection timeout - -=item frame_max - -maximum frame size (bytes) - -=item client_properties - -informational properties transmitted by the client during connection -establishment - -=item recv_oct - -octets received - -=item recv_cnt - -packets received - -=item send_oct - -octets sent - -=item send_cnt - -packets sent - -=item send_pend - -send queue size - -=back - -The list_queues, list_exchanges and list_bindings commands accept an -optional virtual host parameter for which to display results, -defaulting to I<"/">. The default can be overridden with the B<-p> -flag. - -=head1 OUTPUT ESCAPING - -Various items that may appear in the output of rabbitmqctl can contain -arbitrary octets. If a octet corresponds to a non-printing ASCII -character (values 0 to 31, and 127), it will be escaped in the output, -using a sequence consisting of a backslash character followed by three -octal digits giving the octet's value (i.e., as used in string -literals in the C programming language). An octet corresponding to -the backslash character (i.e. with value 92) will be escaped using a -sequence of two backslash characters. Octets with a value of 128 or -above are not escaped, in order to preserve strings encoded with -UTF-8. - -The items to which this escaping scheme applies are: - -=over - -=item * -Usernames - -=item * -Virtual host names - -=item * -Queue names - -=item * -Exchange names - -=item * -Regular expressions used for access control - -=back - -=head2 QUEUE MANAGEMENT - -pin_queue_to_disk [-p I] - -unpin_queue_from_disk [-p I] - -Controls the pinning of queues. Queues which are pinned to disk are -always in disk only storage mode, keeping all their messages only on -disk, and not in RAM. Pinning a queue to disk immediately forces it to -flush its contents to disk and will free up any memory it is using to -hold messages. Unpinning a queue from disk will allow the queue to -move back into mixed storage mode when enough memory is available to -hold the queue's contents in RAM. If a queue is not pinned to disk -then it will be automatically moved to disk only storage mode when the -server detects that available RAM is running low. - -This setting survives server restarts when applied to durable queues. - -The pin_queue_to_disk and unpin_queue_from_disk commands accept an -optional virtual host parameter for which to manage queues, defaulting -to I<"/">. The default can be overridden with the B<-p> flag. - -=head1 EXAMPLES - -Create a user named foo with (initial) password bar at the Erlang node -rabbit@test: - - rabbitmqctl -n rabbit@test add_user foo bar - -Grant user named foo access to the virtual host called test at the -default Erlang node: - - rabbitmqctl map_user_vhost foo test - -Append the current logs' content to the files with ".1" suffix and reopen -them: - - rabbitmqctl rotate_logs .1 - -=head1 SEE ALSO - -rabbitmq.conf(5), rabbitmq-multi(1), rabbitmq-server(1) - -=head1 AUTHOR - -The RabbitMQ Team - -=head1 REFERENCES - -RabbitMQ Web Site: L diff --git a/ebin/rabbit.app b/ebin/rabbit.app deleted file mode 100644 index 0d714fdf..00000000 --- a/ebin/rabbit.app +++ /dev/null @@ -1,57 +0,0 @@ -{application, rabbit, %% -*- erlang -*- - [{description, "RabbitMQ"}, - {id, "RabbitMQ"}, - {vsn, "%%VERSION%%"}, - {modules, [buffering_proxy, - rabbit_access_control, - rabbit_alarm, - rabbit_amqqueue, - rabbit_amqqueue_process, - rabbit_amqqueue_sup, - rabbit_binary_generator, - rabbit_binary_parser, - rabbit_channel, - rabbit_control, - rabbit, - rabbit_error_logger, - rabbit_error_logger_file_h, - rabbit_exchange, - rabbit_framing_channel, - rabbit_framing, - rabbit_heartbeat, - rabbit_load, - rabbit_log, - rabbit_memsup_linux, - rabbit_misc, - rabbit_mnesia, - rabbit_multi, - rabbit_networking, - rabbit_node_monitor, - rabbit_persister, - rabbit_reader, - rabbit_router, - rabbit_sasl_report_file_h, - rabbit_sup, - rabbit_tests, - rabbit_tracer, - rabbit_writer, - tcp_acceptor, - tcp_acceptor_sup, - tcp_client_sup, - tcp_listener, - tcp_listener_sup]}, - {registered, [rabbit_amqqueue_sup, - rabbit_log, - rabbit_node_monitor, - rabbit_persister, - rabbit_router, - rabbit_sup, - rabbit_tcp_client_sup]}, - {applications, [kernel, stdlib, sasl, mnesia, os_mon]}, - {mod, {rabbit, []}}, - {env, [{tcp_listeners, [{"0.0.0.0", 5672}]}, - {extra_startup_steps, []}, - {default_user, <<"guest">>}, - {default_pass, <<"guest">>}, - {default_vhost, <<"/">>}, - {memory_alarms, auto}]}]}. diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in deleted file mode 100644 index 035fa054..00000000 --- a/ebin/rabbit_app.in +++ /dev/null @@ -1,25 +0,0 @@ -{application, rabbit, %% -*- erlang -*- - [{description, "RabbitMQ"}, - {id, "RabbitMQ"}, - {vsn, "%%VSN%%"}, - {modules, []}, - {registered, [rabbit_amqqueue_sup, - rabbit_log, - rabbit_node_monitor, - rabbit_persister, - rabbit_router, - rabbit_sup, - rabbit_tcp_client_sup]}, - {applications, [kernel, stdlib, sasl, mnesia, os_mon]}, -%% we also depend on ssl but it shouldn't be in here as we don't -%% actually want to start it - {mod, {rabbit, []}}, - {env, [{tcp_listeners, [{"0.0.0.0", 5672}]}, - {ssl_listeners, []}, - {ssl_options, []}, - {vm_memory_high_watermark, 0.4}, - {msg_store_index_module, rabbit_msg_store_ets_index}, - {default_user, <<"guest">>}, - {default_pass, <<"guest">>}, - {default_vhost, <<"/">>}, - {default_permissions, [<<".*">>, <<".*">>, <<".*">>]}]}]}. diff --git a/include/rabbit.hrl b/include/rabbit.hrl deleted file mode 100644 index fb6a71ad..00000000 --- a/include/rabbit.hrl +++ /dev/null @@ -1,181 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --record(user, {username, password}). --record(user_vhost, {username, virtual_host}). - --record(vhost, {virtual_host, dummy}). - --record(connection, {user, timeout_sec, frame_max, vhost, client_properties}). - --record(content, - {class_id, - properties, %% either 'none', or a decoded record/tuple - properties_bin, %% either 'none', or an encoded properties binary - %% Note: at most one of properties and properties_bin can be - %% 'none' at once. - payload_fragments_rev %% list of binaries, in reverse order (!) - }). - --record(resource, {virtual_host, kind, name}). - --record(exchange, {name, type, durable, auto_delete, arguments, state = creating}). - --record(amqqueue, {name, durable, auto_delete, arguments, pid, pinned = false}). - -%% mnesia doesn't like unary records, so we add a dummy 'value' field --record(route, {binding, state = creating}). --record(reverse_route, {reverse_binding, state = creating}). - --record(binding, {exchange_name, key, queue_name, args = []}). --record(reverse_binding, {queue_name, key, exchange_name, args = []}). - --record(listener, {node, protocol, host, port}). - --record(basic_message, {exchange_name, routing_key, content, - guid, is_persistent}). - --record(dq_msg_loc, {queue_and_seq_id, is_delivered, msg_id}). - --record(ssl_socket, {tcp, ssl}). --record(delivery, {mandatory, immediate, txn, sender, message}). - --record(amqp_error, {name, explanation, method = none}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --include("rabbit_framing_spec.hrl"). - --type(maybe(T) :: T | 'none'). --type(erlang_node() :: atom()). --type(ssl_socket() :: #ssl_socket{}). --type(socket() :: port() | ssl_socket()). --type(thunk(T) :: fun(() -> T)). --type(info_key() :: atom()). --type(info() :: {info_key(), any()}). -<<<<<<< local -======= --type(regexp() :: binary()). --type(record_state() :: 'creating' | 'deleting' | 'complete'). ->>>>>>> other - -%% this is really an abstract type, but dialyzer does not support them --type(guid() :: any()). --type(txn() :: guid()). --type(pkey() :: guid()). --type(r(Kind) :: - #resource{virtual_host :: vhost(), - kind :: Kind, - name :: resource_name()}). --type(queue_name() :: r('queue')). --type(exchange_name() :: r('exchange')). --type(user() :: - #user{username :: username(), - password :: password()}). --type(amqqueue() :: - #amqqueue{name :: queue_name(), - durable :: boolean(), - auto_delete :: boolean(), - arguments :: amqp_table(), - pid :: maybe(pid())}). --type(exchange() :: - #exchange{name :: exchange_name(), - type :: exchange_type(), - durable :: boolean(), - auto_delete :: boolean(), - arguments :: amqp_table(), - state :: record_state()}). --type(binding() :: - #binding{exchange_name :: exchange_name(), - queue_name :: queue_name(), - key :: binding_key()}). -%% TODO: make this more precise by tying specific class_ids to -%% specific properties --type(undecoded_content() :: - #content{class_id :: amqp_class_id(), - properties :: 'none', - properties_bin :: binary(), - payload_fragments_rev :: [binary()]} | - #content{class_id :: amqp_class_id(), - properties :: amqp_properties(), - properties_bin :: 'none', - payload_fragments_rev :: [binary()]}). --type(decoded_content() :: - #content{class_id :: amqp_class_id(), - properties :: amqp_properties(), - properties_bin :: maybe(binary()), - payload_fragments_rev :: [binary()]}). --type(content() :: undecoded_content() | decoded_content()). --type(basic_message() :: - #basic_message{exchange_name :: exchange_name(), - routing_key :: routing_key(), - content :: content(), - guid :: guid(), - is_persistent :: bool()}). --type(message() :: basic_message()). --type(delivery() :: - #delivery{mandatory :: boolean(), - immediate :: boolean(), - txn :: maybe(txn()), - sender :: pid(), - message :: message()}). -%% this really should be an abstract type --type(msg_id() :: non_neg_integer()). --type(msg() :: {queue_name(), pid(), msg_id(), boolean(), message()}). --type(listener() :: - #listener{node :: erlang_node(), - protocol :: atom(), - host :: string() | atom(), - port :: non_neg_integer()}). --type(not_found() :: {'error', 'not_found'}). --type(routing_result() :: 'routed' | 'unroutable' | 'not_delivered'). --type(amqp_error() :: - #amqp_error{name :: atom(), - explanation :: string(), - method :: atom()}). --endif. - -%%---------------------------------------------------------------------------- - --define(COPYRIGHT_MESSAGE, "Copyright (C) 2007-2009 LShift Ltd., Cohesive Financial Technologies LLC., and Rabbit Technologies Ltd."). --define(INFORMATION_MESSAGE, "Licensed under the MPL. See http://www.rabbitmq.com/"). - --ifdef(debug). --define(LOGDEBUG0(F), rabbit_log:debug(F)). --define(LOGDEBUG(F,A), rabbit_log:debug(F,A)). --define(LOGMESSAGE(D,C,M,Co), rabbit_log:message(D,C,M,Co)). --else. --define(LOGDEBUG0(F), ok). --define(LOGDEBUG(F,A), ok). --define(LOGMESSAGE(D,C,M,Co), ok). --endif. diff --git a/include/rabbit_exchange_behaviour_spec.hrl b/include/rabbit_exchange_behaviour_spec.hrl deleted file mode 100644 index 7e965fc7..00000000 --- a/include/rabbit_exchange_behaviour_spec.hrl +++ /dev/null @@ -1,41 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(publish/2 :: (exchange(), delivery()) -> {routing_result(), [pid()]}). --spec(declare/1 :: (exchange()) -> 'ok'). --spec(init/1 :: (exchange()) -> 'ok'). --spec(delete/1 :: (exchange()) -> 'ok'). --spec(add_binding/2 :: (exchange(), binding()) -> 'ok'). --spec(delete_binding/2 :: (exchange(), binding()) -> 'ok'). - --endif. diff --git a/include/rabbit_framing_spec.hrl b/include/rabbit_framing_spec.hrl deleted file mode 100644 index 16af8ad3..00000000 --- a/include/rabbit_framing_spec.hrl +++ /dev/null @@ -1,60 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - -%% TODO: much of this should be generated - --type(amqp_field_type() :: - 'longstr' | 'signedint' | 'decimal' | 'timestamp' | - 'table' | 'byte' | 'double' | 'float' | 'long' | - 'short' | 'bool' | 'binary' | 'void'). --type(amqp_property_type() :: - 'shortstr' | 'longstr' | 'octet' | 'shortint' | 'longint' | - 'longlongint' | 'timestamp' | 'bit' | 'table'). -%% we could make this more precise but ultimately are limited by -%% dialyzer's lack of support for recursive types --type(amqp_table() :: [{binary(), amqp_field_type(), any()}]). -%% TODO: make this more precise --type(amqp_class_id() :: non_neg_integer()). -%% TODO: make this more precise --type(amqp_properties() :: tuple()). -%% TODO: make this more precise --type(amqp_method() :: tuple()). -%% TODO: make this more precise --type(amqp_method_name() :: atom()). --type(channel_number() :: non_neg_integer()). --type(resource_name() :: binary()). --type(routing_key() :: binary()). --type(username() :: binary()). --type(password() :: binary()). --type(vhost() :: binary()). --type(ctag() :: binary()). --type(exchange_type() :: atom()). --type(binding_key() :: binary()). diff --git a/include/rabbit_msg_store.hrl b/include/rabbit_msg_store.hrl deleted file mode 100644 index a094454a..00000000 --- a/include/rabbit_msg_store.hrl +++ /dev/null @@ -1,55 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --record(msg_location, - {msg_id, ref_count, file, offset, total_size}). - --record(file_summary, - {file, valid_total_size, contiguous_top, left, right, file_size, - locked, readers}). - --define(BINARY_MODE, [raw, binary]). --define(READ_MODE, [read]). --define(READ_AHEAD_MODE, [read_ahead | ?READ_MODE]). --define(WRITE_MODE, [write]). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). - --define(FILE_SIZE_LIMIT, (16*1024*1024)). - --define(HANDLE_CACHE_BUFFER_SIZE, 1048576). %% 1MB - --define(FILE_SUMMARY_ETS_NAME, rabbit_msg_store_file_summary). --define(CACHE_ETS_NAME, rabbit_msg_store_cache). --define(FILE_HANDLES_ETS_NAME, rabbit_msg_store_file_handles). diff --git a/include/rabbit_queue.hrl b/include/rabbit_queue.hrl deleted file mode 100644 index fc1dbf74..00000000 --- a/include/rabbit_queue.hrl +++ /dev/null @@ -1,44 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --record(delta, - { start_seq_id, - count, - end_seq_id %% note the end_seq_id is always >, not >= - }). - --ifdef(use_specs). - --type(delta() :: #delta { start_seq_id :: non_neg_integer(), - count :: non_neg_integer (), - end_seq_id :: non_neg_integer() }). - --endif. diff --git a/packaging/RPMS/Fedora/Makefile b/packaging/RPMS/Fedora/Makefile deleted file mode 100644 index bc5b58ca..00000000 --- a/packaging/RPMS/Fedora/Makefile +++ /dev/null @@ -1,49 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -TOP_DIR=$(shell pwd) -#Under debian we do not want to check build dependencies, since that -#only checks build-dependencies using rpms, not debs -DEFINES=--define '_topdir $(TOP_DIR)' --define '_tmppath $(TOP_DIR)/tmp' --define '_sysconfdir /etc' --define '_localstatedir /var' - -ifndef RPM_OS -RPM_OS=fedora -endif - -ifeq "x$(RPM_OS)" "xsuse" -REQUIRES=/sbin/chkconfig /sbin/service -OS_DEFINES=--define '_initrddir /etc/init.d' --define 'dist .suse' -else -REQUIRES=chkconfig initscripts -OS_DEFINES=--define '_initrddir /etc/rc.d/init.d' -endif - -rpms: clean server - -prepare: - mkdir -p BUILD SOURCES SPECS SRPMS RPMS tmp - cp $(TARBALL_DIR)/$(TARBALL) SOURCES - cp rabbitmq-server.spec SPECS - sed -i 's|%%VERSION%%|$(VERSION)|;s|%%REQUIRES%%|$(REQUIRES)|' \ - SPECS/rabbitmq-server.spec - - cp ${COMMON_DIR}/* SOURCES/ - sed -i \ - -e 's|^DEFAULTS_FILE=.*$$|DEFAULTS_FILE=/etc/sysconfig/rabbitmq|' \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=/var/lock/subsys/$$NAME|' \ - SOURCES/rabbitmq-server.init - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - SOURCES/rabbitmq-script-wrapper - cp rabbitmq-server.logrotate SOURCES/rabbitmq-server.logrotate - -server: prepare - rpmbuild -ba --nodeps SPECS/rabbitmq-server.spec $(DEFINES) $(OS_DEFINES) \ - --target i386 - rpmbuild -ba --nodeps SPECS/rabbitmq-server.spec $(DEFINES) $(OS_DEFINES) \ - --define '_libdir /usr/lib64' --define '_arch x86_64' \ - --define '_defaultdocdir /usr/share/doc' --target x86_64 - -clean: - rm -rf SOURCES SPECS RPMS SRPMS BUILD tmp diff --git a/packaging/RPMS/Fedora/rabbitmq-server.logrotate b/packaging/RPMS/Fedora/rabbitmq-server.logrotate deleted file mode 100644 index 6b657614..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /sbin/service rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec deleted file mode 100644 index 62fb1dfb..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ /dev/null @@ -1,164 +0,0 @@ -%define debug_package %{nil} - -Name: rabbitmq-server -Version: %%VERSION%% -Release: 1%{?dist} -License: MPLv1.1 -Group: Development/Libraries -Source: http://www.rabbitmq.com/releases/rabbitmq-server/v%{version}/%{name}-%{version}.tar.gz -Source1: rabbitmq-server.init -Source2: rabbitmq-script-wrapper -Source3: rabbitmq-server.logrotate -Source4: rabbitmq-asroot-script-wrapper -URL: http://www.rabbitmq.com/ -BuildRequires: erlang, python-simplejson -Requires: erlang, logrotate -BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-%{_arch}-root -Summary: The RabbitMQ server -Requires(post): %%REQUIRES%% -Requires(pre): %%REQUIRES%% - -%description -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -%define _rabbit_erllibdir %{_libdir}/rabbitmq/lib/rabbitmq_server-%{version} -%define _rabbit_libdir %{_libdir}/rabbitmq -%define _rabbit_wrapper %{_builddir}/`basename %{S:2}` -%define _rabbit_asroot_wrapper %{_builddir}/`basename %{S:4}` - -%define _maindir %{buildroot}%{_rabbit_erllibdir} - -%prep -%setup -q - -%build -cp %{S:2} %{_rabbit_wrapper} -sed -i 's|/usr/lib/|%{_libdir}/|' %{_rabbit_wrapper} -cp %{S:4} %{_rabbit_asroot_wrapper} -sed -i 's|/usr/lib/|%{_libdir}/|' %{_rabbit_asroot_wrapper} -make %{?_smp_mflags} - -%install -rm -rf %{buildroot} - -make install TARGET_DIR=%{_maindir} \ - SBIN_DIR=%{buildroot}%{_rabbit_libdir}/bin \ - MAN_DIR=%{buildroot}%{_mandir} - -mkdir -p %{buildroot}%{_localstatedir}/lib/rabbitmq/mnesia -mkdir -p %{buildroot}%{_localstatedir}/log/rabbitmq - -#Copy all necessary lib files etc. -install -p -D -m 0755 %{S:1} %{buildroot}%{_initrddir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmqctl -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-multi -install -p -D -m 0755 %{_rabbit_asroot_wrapper} %{buildroot}%{_sbindir}/rabbitmq-activate-plugins -install -p -D -m 0755 %{_rabbit_asroot_wrapper} %{buildroot}%{_sbindir}/rabbitmq-deactivate-plugins - -install -p -D -m 0644 %{S:3} %{buildroot}%{_sysconfdir}/logrotate.d/rabbitmq-server - -mkdir -p %{buildroot}%{_sysconfdir}/rabbitmq - -rm %{_maindir}/LICENSE %{_maindir}/LICENSE-MPL-RabbitMQ %{_maindir}/INSTALL - -#Build the list of files -rm -f %{_builddir}/filelist.%{name}.rpm -echo '%defattr(-,root,root, -)' >> %{_builddir}/filelist.%{name}.rpm -(cd %{buildroot}; \ - find . -type f ! -regex '\.%{_sysconfdir}.*' \ - ! -regex '\.\(%{_rabbit_erllibdir}\|%{_rabbit_libdir}\).*' \ - | sed -e 's/^\.//' >> %{_builddir}/filelist.%{name}.rpm) - -%pre - -if [ $1 -gt 1 ]; then - # Upgrade - stop previous instance of rabbitmq-server init.d script - /sbin/service rabbitmq-server stop -fi - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - groupadd -r rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - useradd -r -g rabbitmq -d %{_localstatedir}/lib/rabbitmq rabbitmq \ - -c "RabbitMQ messaging server" -fi - -%post -/sbin/chkconfig --add %{name} - -%preun -if [ $1 = 0 ]; then - #Complete uninstall - /sbin/service rabbitmq-server stop - /sbin/chkconfig --del rabbitmq-server - - # We do not remove /var/log and /var/lib directories - # Leave rabbitmq user and group -fi - -%files -f ../filelist.%{name}.rpm -%defattr(-,root,root,-) -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/lib/rabbitmq -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/log/rabbitmq -%dir %{_sysconfdir}/rabbitmq -%{_rabbit_erllibdir} -%{_rabbit_libdir} -%{_initrddir}/rabbitmq-server -%config(noreplace) %{_sysconfdir}/logrotate.d/rabbitmq-server -%doc LICENSE LICENSE-MPL-RabbitMQ - -%clean -rm -rf %{buildroot} - -%changelog -* Mon Oct 5 2009 David Wragg 1.7.0-1 -- New upstream release - -* Wed Jun 17 2009 Matthias Radestock 1.6.0-1 -- New upstream release - -* Tue May 19 2009 Matthias Radestock 1.5.5-1 -- Maintenance release for the 1.5.x series - -* Mon Apr 6 2009 Matthias Radestock 1.5.4-1 -- Maintenance release for the 1.5.x series - -* Tue Feb 24 2009 Tony Garnock-Jones 1.5.3-1 -- Maintenance release for the 1.5.x series - -* Mon Feb 23 2009 Tony Garnock-Jones 1.5.2-1 -- Maintenance release for the 1.5.x series - -* Mon Jan 19 2009 Ben Hood <0x6e6562@gmail.com> 1.5.1-1 -- Maintenance release for the 1.5.x series - -* Wed Dec 17 2008 Matthias Radestock 1.5.0-1 -- New upstream release - -* Thu Jul 24 2008 Tony Garnock-Jones 1.4.0-1 -- New upstream release - -* Mon Mar 3 2008 Adrien Pierard 1.3.0-1 -- New upstream release - -* Wed Sep 26 2007 Simon MacMullen 1.2.0-1 -- New upstream release - -* Wed Aug 29 2007 Simon MacMullen 1.1.1-1 -- New upstream release - -* Mon Jul 30 2007 Simon MacMullen 1.1.0-1.alpha -- New upstream release - -* Tue Jun 12 2007 Hubert Plociniczak 1.0.0-1.20070607 -- Building from source tarball, added starting script, stopping - -* Mon May 21 2007 Hubert Plociniczak 1.0.0-1.alpha -- Initial build of server library of RabbitMQ package diff --git a/packaging/common/rabbitmq-asroot-script-wrapper b/packaging/common/rabbitmq-asroot-script-wrapper deleted file mode 100644 index ee5947b6..00000000 --- a/packaging/common/rabbitmq-asroot-script-wrapper +++ /dev/null @@ -1,45 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2009 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2009 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -cd /var/lib/rabbitmq - -SCRIPT=`basename $0` - -if [ `id -u` = 0 ] ; then - /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -else - echo - echo "Only root should run ${SCRIPT}" - echo - exit 1 -fi - diff --git a/packaging/common/rabbitmq-script-wrapper b/packaging/common/rabbitmq-script-wrapper deleted file mode 100644 index f66f8e59..00000000 --- a/packaging/common/rabbitmq-script-wrapper +++ /dev/null @@ -1,58 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2009 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2009 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -# Escape spaces and quotes, because shell is revolting. -for arg in "$@" ; do - # Escape quotes in parameters, so that they're passed through cleanly. - arg=$(sed -e 's/"/\\"/g' <<-END - $arg - END - ) - CMDLINE="${CMDLINE} \"${arg}\"" -done - -cd /var/lib/rabbitmq - -SCRIPT=`basename $0` - -if [ `id -u` = 0 ] ; then - @SU_RABBITMQ_SH_C@ "/usr/lib/rabbitmq/bin/${SCRIPT} ${CMDLINE}" -elif [ `id -u` = `id -u rabbitmq` ] ; then - /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -else - /usr/lib/rabbitmq/bin/${SCRIPT} - echo - echo "Only root or rabbitmq should run ${SCRIPT}" - echo - exit 1 -fi - diff --git a/packaging/common/rabbitmq-server.init b/packaging/common/rabbitmq-server.init deleted file mode 100644 index 39d23983..00000000 --- a/packaging/common/rabbitmq-server.init +++ /dev/null @@ -1,136 +0,0 @@ -#!/bin/sh -# -# rabbitmq-server RabbitMQ broker -# -# chkconfig: - 80 05 -# description: Enable AMQP service provided by RabbitMQ -# - -### BEGIN INIT INFO -# Provides: rabbitmq-server -# Required-Start: $remote_fs $network -# Required-Stop: $remote_fs $network -# Default-Start: -# Default-Stop: -# Description: RabbitMQ broker -# Short-Description: Enable AMQP service provided by RabbitMQ broker -### END INIT INFO - -PATH=/sbin:/usr/sbin:/bin:/usr/bin -DAEMON=/usr/sbin/rabbitmq-multi -NAME=rabbitmq-server -DESC=rabbitmq-server -USER=rabbitmq -NODE_COUNT=1 -ROTATE_SUFFIX= -INIT_LOG_DIR=/var/log/rabbitmq - -DEFAULTS_FILE= # This is filled in when building packages -LOCK_FILE= # This is filled in when building packages - -test -x $DAEMON || exit 0 - -# Include rabbitmq defaults if available -if [ -f "$DEFAULTS_FILE" ] ; then - . $DEFAULTS_FILE -fi - -RETVAL=0 -set -e - -start_rabbitmq () { - set +e - $DAEMON start_all ${NODE_COUNT} > ${INIT_LOG_DIR}/startup_log 2> ${INIT_LOG_DIR}/startup_err - case "$?" in - 0) - echo SUCCESS - [ -n "$LOCK_FILE" ] && touch $LOCK_FILE - RETVAL=0 - ;; - 1) - echo TIMEOUT - check ${INIT_LOG_DIR}/startup_\{log,err\} - RETVAL=1 - ;; - *) - echo FAILED - check ${INIT_LOG_DIR}/startup_log, _err - RETVAL=1 - ;; - esac - set -e -} - -stop_rabbitmq () { - set +e - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - $DAEMON stop_all > ${INIT_LOG_DIR}/shutdown_log 2> ${INIT_LOG_DIR}/shutdown_err - RETVAL=$? - if [ $RETVAL = 0 ] ; then - [ -n "$LOCK_FILE" ] && rm -rf $LOCK_FILE - else - echo FAILED - check ${INIT_LOG_DIR}/shutdown_log, _err - fi - else - echo No nodes running - RETVAL=0 - fi - set -e -} - -status_rabbitmq() { - set +e - if [ "$1" != "quiet" ] ; then - $DAEMON status 2>&1 - else - $DAEMON status > /dev/null 2>&1 - fi - if [ $? != 0 ] ; then - RETVAL=1 - fi - set -e -} - -rotate_logs_rabbitmq() { - set +e - $DAEMON rotate_logs ${ROTATE_SUFFIX} - if [ $? != 0 ] ; then - RETVAL=1 - fi - set -e -} - -restart_rabbitmq() { - stop_rabbitmq - start_rabbitmq -} - -case "$1" in - start) - echo -n "Starting $DESC: " - start_rabbitmq - echo "$NAME." - ;; - stop) - echo -n "Stopping $DESC: " - stop_rabbitmq - echo "$NAME." - ;; - status) - status_rabbitmq - ;; - rotate-logs) - echo -n "Rotating log files for $DESC: " - rotate_logs_rabbitmq - ;; - force-reload|reload|restart|condrestart|try-restart) - echo -n "Restarting $DESC: " - restart_rabbitmq - echo "$NAME." - ;; - *) - echo "Usage: $0 {start|stop|status|rotate-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 - RETVAL=1 - ;; -esac - -exit $RETVAL diff --git a/packaging/debs/Debian/Makefile b/packaging/debs/Debian/Makefile deleted file mode 100644 index ab05f732..00000000 --- a/packaging/debs/Debian/Makefile +++ /dev/null @@ -1,42 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -DEBIAN_ORIG_TARBALL=$(shell echo $(TARBALL) | sed -e 's:\(.*\)-\(.*\)\(\.tar\.gz\):\1_\2\.orig\3:g') -UNPACKED_DIR=rabbitmq-server-$(VERSION) -PACKAGENAME=rabbitmq-server -SIGNING_KEY_ID=056E8E56 - -ifneq "$(UNOFFICIAL_RELEASE)" "" - SIGNING=-us -uc -else - SIGNING=-k$(SIGNING_KEY_ID) -endif - -all: - @echo 'Please choose a target from the Makefile.' - -package: clean - cp $(TARBALL_DIR)/$(TARBALL) $(DEBIAN_ORIG_TARBALL) - tar -zxvf $(DEBIAN_ORIG_TARBALL) - cp -r debian $(UNPACKED_DIR) - cp $(COMMON_DIR)/* $(UNPACKED_DIR)/debian/ - sed -i \ - -e 's|^DEFAULTS_FILE=.*$$|DEFAULTS_FILE=/etc/default/rabbitmq|' \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=|' \ - $(UNPACKED_DIR)/debian/rabbitmq-server.init - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - $(UNPACKED_DIR)/debian/rabbitmq-script-wrapper - chmod a+x $(UNPACKED_DIR)/debian/rules - UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) - cd $(UNPACKED_DIR); GNUPGHOME=$(GNUPG_PATH)/.gnupg dpkg-buildpackage -rfakeroot $(SIGNING) - rm -rf $(UNPACKED_DIR) - -clean: - rm -rf $(UNPACKED_DIR) - rm -f $(PACKAGENAME)_*.tar.gz - rm -f $(PACKAGENAME)_*.diff.gz - rm -f $(PACKAGENAME)_*.dsc - rm -f $(PACKAGENAME)_*_*.changes - rm -f $(PACKAGENAME)_*_*.deb diff --git a/packaging/debs/Debian/check-changelog.sh b/packaging/debs/Debian/check-changelog.sh deleted file mode 100755 index ff25e648..00000000 --- a/packaging/debs/Debian/check-changelog.sh +++ /dev/null @@ -1,29 +0,0 @@ -#!/bin/sh - -PACKAGE_NAME=$1 -cd $2 - -CHANGELOG_VERSION=$(dpkg-parsechangelog | sed -n 's/^Version: \(.*\)-[^-]*$/\1/p') - -if [ "${CHANGELOG_VERSION}" != "${VERSION}" ]; then - if [ -n "${UNOFFICIAL_RELEASE}" ]; then - echo "${PACKAGE_NAME} (${VERSION}-1) unstable; urgency=low" > debian/changelog.tmp - echo >> debian/changelog.tmp - echo " * Unofficial release" >> debian/changelog.tmp - echo >> debian/changelog.tmp - echo " -- Nobody $(date -R)" >> debian/changelog.tmp - echo >> debian/changelog.tmp - cat debian/changelog >> debian/changelog.tmp - mv -f debian/changelog.tmp debian/changelog - - exit 0 - else - echo - echo There is no entry in debian/changelog for version ${VERSION}! - echo Please create a changelog entry, or set the variable - echo UNOFFICIAL_RELEASE to automatically create one. - echo - - exit 1 - fi -fi diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog deleted file mode 100644 index e4cfe7b5..00000000 --- a/packaging/debs/Debian/debian/changelog +++ /dev/null @@ -1,96 +0,0 @@ -rabbitmq-server (1.7.0-1) intrepid; urgency=low - - * New Upstream Release - - -- David Wragg Mon, 05 Oct 2009 13:44:41 +0100 - -rabbitmq-server (1.6.0-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 16 Jun 2009 15:02:58 +0100 - -rabbitmq-server (1.5.5-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 19 May 2009 09:57:54 +0100 - -rabbitmq-server (1.5.4-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Mon, 06 Apr 2009 09:19:32 +0100 - -rabbitmq-server (1.5.3-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Tue, 24 Feb 2009 18:23:33 +0000 - -rabbitmq-server (1.5.2-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Mon, 23 Feb 2009 16:03:38 +0000 - -rabbitmq-server (1.5.1-1) hardy; urgency=low - - * New Upstream Release - - -- Simon MacMullen Mon, 19 Jan 2009 15:46:13 +0000 - -rabbitmq-server (1.5.0-1) testing; urgency=low - - * New Upstream Release - - -- Matthias Radestock Wed, 17 Dec 2008 18:23:47 +0000 - -rabbitmq-server (1.4.0-1) testing; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Thu, 24 Jul 2008 13:21:48 +0100 - -rabbitmq-server (1.3.0-1) testing; urgency=low - - * New Upstream Release - - -- Adrien Pierard Mon, 03 Mar 2008 15:34:38 +0000 - -rabbitmq-server (1.2.0-2) testing; urgency=low - - * Fixed rabbitmqctl wrapper script - - -- Simon MacMullen Fri, 05 Oct 2007 11:55:00 +0100 - -rabbitmq-server (1.2.0-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 26 Sep 2007 11:49:26 +0100 - -rabbitmq-server (1.1.1-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 29 Aug 2007 12:03:15 +0100 - -rabbitmq-server (1.1.0-alpha-2) testing; urgency=low - - * Fixed erlang-nox dependency - - -- Simon MacMullen Thu, 02 Aug 2007 11:27:13 +0100 - -rabbitmq-server (1.1.0-alpha-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Fri, 20 Jul 2007 18:17:33 +0100 - -rabbitmq-server (1.0.0-alpha-1) unstable; urgency=low - - * Initial release - - -- Tony Garnock-Jones Wed, 31 Jan 2007 19:06:33 +0000 - diff --git a/packaging/debs/Debian/debian/compat b/packaging/debs/Debian/debian/compat deleted file mode 100644 index 7ed6ff82..00000000 --- a/packaging/debs/Debian/debian/compat +++ /dev/null @@ -1 +0,0 @@ -5 diff --git a/packaging/debs/Debian/debian/control b/packaging/debs/Debian/debian/control deleted file mode 100644 index d4e2cd17..00000000 --- a/packaging/debs/Debian/debian/control +++ /dev/null @@ -1,15 +0,0 @@ -Source: rabbitmq-server -Section: net -Priority: extra -Maintainer: Tony Garnock-Jones -Build-Depends: cdbs, debhelper (>= 5), erlang-dev, python-simplejson -Standards-Version: 3.8.0 - -Package: rabbitmq-server -Architecture: all -Depends: erlang-base | erlang-base-hipe, erlang-ssl | erlang-nox (<< 1:13.b-dfsg1-1), erlang-os-mon | erlang-nox (<< 1:13.b-dfsg1-1), erlang-mnesia | erlang-nox (<< 1:13.b-dfsg1-1), adduser, logrotate, ${misc:Depends} -Description: An AMQP server written in Erlang - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. -Homepage: http://www.rabbitmq.com/ diff --git a/packaging/debs/Debian/debian/copyright b/packaging/debs/Debian/debian/copyright deleted file mode 100755 index 69867220..00000000 --- a/packaging/debs/Debian/debian/copyright +++ /dev/null @@ -1,530 +0,0 @@ -This package was debianized by Tony Garnock-Jones on -Wed, 3 Jan 2007 15:43:44 +0000. - -It was downloaded from http://www.rabbitmq.com/ - -The file codegen/amqp-0.8.json is covered by the following terms: - - "Copyright (C) 2008-2009 LShift Ltd, Cohesive Financial Technologies LLC, - and Rabbit Technologies Ltd - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this file (the Software), to deal in the - Software without restriction, including without limitation the - rights to use, copy, modify, merge, publish, distribute, - sublicense, and/or sell copies of the Software, and to permit - persons to whom the Software is furnished to do so, subject to - the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - OTHER DEALINGS IN THE SOFTWARE." - -The rest of this package is licensed under the Mozilla Public License 1.1 -Authors and Copyright are as described below: - - The Initial Developers of the Original Code are LShift Ltd, - Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. - - Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, - Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd - are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial - Technologies LLC, and Rabbit Technologies Ltd. - - Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift - Ltd. Portions created by Cohesive Financial Technologies LLC are - Copyright (C) 2007-2009 Cohesive Financial Technologies - LLC. Portions created by Rabbit Technologies Ltd are Copyright - (C) 2007-2009 Rabbit Technologies Ltd. - - - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developers of the Original Code are LShift Ltd, - Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. - - Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, - Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd - are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial - Technologies LLC, and Rabbit Technologies Ltd. - - Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift - Ltd. Portions created by Cohesive Financial Technologies LLC are - Copyright (C) 2007-2009 Cohesive Financial Technologies - LLC. Portions created by Rabbit Technologies Ltd are Copyright - (C) 2007-2009 Rabbit Technologies Ltd. - - All Rights Reserved. - - Contributor(s): ______________________________________.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] - - - - - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. - -The Debian packaging is (C) 2007-2009, Rabbit Technologies Ltd. -and is licensed under the MPL 1.1, see above. - - diff --git a/packaging/debs/Debian/debian/dirs b/packaging/debs/Debian/debian/dirs deleted file mode 100644 index 625b7d41..00000000 --- a/packaging/debs/Debian/debian/dirs +++ /dev/null @@ -1,9 +0,0 @@ -usr/lib/rabbitmq/bin -usr/lib/erlang/lib -usr/sbin -usr/share/man -var/lib/rabbitmq/mnesia -var/log/rabbitmq -etc/logrotate.d -etc/rabbitmq - diff --git a/packaging/debs/Debian/debian/postinst b/packaging/debs/Debian/debian/postinst deleted file mode 100644 index 05fb179c..00000000 --- a/packaging/debs/Debian/debian/postinst +++ /dev/null @@ -1,55 +0,0 @@ -#!/bin/sh -# postinst script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `configure' -# * `abort-upgrade' -# * `abort-remove' `in-favour' -# -# * `abort-remove' -# * `abort-deconfigure' `in-favour' -# `removing' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - addgroup --system rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - adduser --system --ingroup rabbitmq --home /var/lib/rabbitmq \ - --no-create-home --gecos "RabbitMQ messaging server" rabbitmq -fi - -chown -R rabbitmq:rabbitmq /var/lib/rabbitmq -chown -R rabbitmq:rabbitmq /var/log/rabbitmq - -case "$1" in - configure) - ;; - - abort-upgrade|abort-remove|abort-deconfigure) - ;; - - *) - echo "postinst called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/postrm.in b/packaging/debs/Debian/debian/postrm.in deleted file mode 100644 index bfcf1f53..00000000 --- a/packaging/debs/Debian/debian/postrm.in +++ /dev/null @@ -1,69 +0,0 @@ -#!/bin/sh -# postrm script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `remove' -# * `purge' -# * `upgrade' -# * `failed-upgrade' -# * `abort-install' -# * `abort-install' -# * `abort-upgrade' -# * `disappear' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - - -case "$1" in - purge) - rm -f /etc/default/rabbitmq - if [ -d /var/lib/rabbitmq ]; then - rm -r /var/lib/rabbitmq - fi - if [ -d /var/log/rabbitmq ]; then - rm -r /var/log/rabbitmq - fi - if [ -d /var/run/rabbitmq ]; then - rm -r /var/run/rabbitmq - fi - if [ -d /etc/rabbitmq ]; then - rm -r /etc/rabbitmq - fi - # Remove traces of plugins - rm -rf @RABBIT_LIB@/priv @RABBIT_LIB@/plugins - for ext in rel script boot ; do - rm -f @RABBIT_LIB@/ebin/rabbit.$ext - done - if getent passwd rabbitmq >/dev/null; then - # Stop epmd if run by the rabbitmq user - pkill -u rabbitmq epmd || : - - deluser rabbitmq - fi - if getent group rabbitmq >/dev/null; then - delgroup rabbitmq - fi - ;; - - remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear) - ;; - - *) - echo "postrm called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/rabbitmq-server.logrotate b/packaging/debs/Debian/debian/rabbitmq-server.logrotate deleted file mode 100644 index c786df77..00000000 --- a/packaging/debs/Debian/debian/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /etc/init.d/rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/debs/Debian/debian/rules b/packaging/debs/Debian/debian/rules deleted file mode 100644 index 3799c438..00000000 --- a/packaging/debs/Debian/debian/rules +++ /dev/null @@ -1,23 +0,0 @@ -#!/usr/bin/make -f - -include /usr/share/cdbs/1/rules/debhelper.mk -include /usr/share/cdbs/1/class/makefile.mk - -RABBIT_LIB=$(DEB_DESTDIR)usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)/ -RABBIT_BIN=$(DEB_DESTDIR)usr/lib/rabbitmq/bin/ - -DEB_MAKE_INSTALL_TARGET := install TARGET_DIR=$(RABBIT_LIB) SBIN_DIR=$(RABBIT_BIN) MAN_DIR=$(DEB_DESTDIR)usr/share/man/ -DEB_MAKE_CLEAN_TARGET:= distclean - -DOCDIR=$(DEB_DESTDIR)usr/share/doc/rabbitmq-server/ - -install/rabbitmq-server:: - mkdir -p $(DOCDIR) - rm $(RABBIT_LIB)LICENSE* - for script in rabbitmqctl rabbitmq-server rabbitmq-multi; do \ - install -p -D -m 0755 debian/rabbitmq-script-wrapper $(DEB_DESTDIR)usr/sbin/$$script; \ - done - for script in rabbitmq-activate-plugins rabbitmq-deactivate-plugins; do \ - install -p -D -m 0755 debian/rabbitmq-asroot-script-wrapper $(DEB_DESTDIR)usr/sbin/$$script; \ - done - sed -e 's|@RABBIT_LIB@|/usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)|g' debian/postrm diff --git a/packaging/debs/Debian/debian/watch b/packaging/debs/Debian/debian/watch deleted file mode 100644 index b41aff9a..00000000 --- a/packaging/debs/Debian/debian/watch +++ /dev/null @@ -1,4 +0,0 @@ -version=3 - -http://www.rabbitmq.com/releases/rabbitmq-server/v(.*)/rabbitmq-server-(\d.*)\.tar\.gz \ - debian uupdate diff --git a/packaging/debs/apt-repository/Makefile b/packaging/debs/apt-repository/Makefile deleted file mode 100644 index ce4347bc..00000000 --- a/packaging/debs/apt-repository/Makefile +++ /dev/null @@ -1,28 +0,0 @@ -SIGNING_USER_EMAIL=info@rabbitmq.com - -ifeq "$(UNOFFICIAL_RELEASE)" "" -HOME_ARG=HOME=$(GNUPG_PATH) -endif - -all: debian_apt_repository - -clean: - rm -rf debian - -CAN_HAS_REPREPRO=$(shell [ -f /usr/bin/reprepro ] && echo true) -ifeq ($(CAN_HAS_REPREPRO), true) -debian_apt_repository: clean - mkdir -p debian/conf - cp -a distributions debian/conf -ifeq "$(UNOFFICIAL_RELEASE)" "" - echo SignWith: $(SIGNING_USER_EMAIL) >> debian/conf/distributions -endif - for FILE in ../Debian/*.changes ; do \ - $(HOME_ARG) reprepro --ignore=wrongdistribution \ - -Vb debian include kitten $${FILE} ; \ - done - reprepro -Vb debian createsymlinks -else -debian_apt_repository: - @echo Not building APT repository as reprepro could not be found -endif diff --git a/packaging/debs/apt-repository/README b/packaging/debs/apt-repository/README deleted file mode 100644 index 514a37f3..00000000 --- a/packaging/debs/apt-repository/README +++ /dev/null @@ -1,17 +0,0 @@ -APT repository for RabbitMQ - -Previously we've attempted to run a repository in the same way that -Debian would: have repository management software installed on the -server, and upload new packages to the repository as and when they're -ready. - -This turned out to be both fiddly and annoying to do (and more -particularly to automate) so since our repository is always going to be -small it's easier just to create the entire repository as part of the -build process, just like a package. It can then be moved into place as a -single unit. The make target "debian_apt_repository" (invoked by "dist") -will create it, and it can get moved onto the server with the rest of -the packages. - -Read "README-real-repository" for information on how we used to do -this. diff --git a/packaging/debs/apt-repository/README-real-repository b/packaging/debs/apt-repository/README-real-repository deleted file mode 100644 index b1526227..00000000 --- a/packaging/debs/apt-repository/README-real-repository +++ /dev/null @@ -1,130 +0,0 @@ -APT Repository for RabbitMQ in Debian -===================================== - -First, a note on what we're trying to do. We want a single "testing" -repository. When RabbitMQ is more stable we will also want a -"stable" repository. It is very important to understand that these refer -to the state of the rabbit code, *NOT* which Debian distribution they go -with. At the moment our dependencies are very simple so our packages can -be used with any current Debian version (etch, lenny, sid) as well as -with Ubuntu. So although we have a "testing" distribution, this is not -codenamed "lenny". Instead it's currently codenamed "kitten" since -that's a baby rabbit. - -Secondly, a note on software. We need a tool to manage the repository, -and a tool to perform uploads to the repository. Debian being Debian -there are quite a few of each. We will use "rerepro" to manage the -repository since it's modern, maintained, and fairly simple. We will use -"dupload" to perform the uploads since it gives us the ability to run -arbitrary commands after the upload, which means we don't need to run a -cron job on the web server to process uploads. - -Creating a repository -===================== - -Much of this was cribbed from: -http://www.debian-administration.org/articles/286 - -The repository is fundamentally just some files in a folder, served over -HTTP (or FTP etc). So let's make it "debian" in the root of -www.rabbitmq.com. - -This means the repository will be at http://www.rabbitmq.com/debian/ and -can be added to a sources.list as: - -deb http://www.rabbitmq.com/debian/ testing main -deb-src http://www.rabbitmq.com/debian/ testing main - -Inside this folder we need a "conf" folder, and in -that we need a "distributions" configuration file - see the file in this -folder. Note that: - -* We list all architectures so that people can install rabbitmq-server - on to anything. -* We don't list the "all" architecture even though we use it; it's - implied. -* We only have a "main" component, we could have non-free and contrib - here if it was relevant. -* We list the email address associated with the key we want to use to - sign the repository. Yes, even after signing packages we still want to - sign the repository. - -We're now ready to go. Assuming the path to our repository is /path, -(and hence configuration is in /path/conf) we can upload a file to the -repository (creating it in the process) by doing something like this on -the repository host: - -$ reprepro --ignore=wrongdistribution -Vb /path include kitten \ - rabbitmq-server_1.0.0-alpha-1_i386.changes - -Note that we upload to the distribution "kitten" rather than "testing". -We also pass --ignore=wrongdistribution since the current packages are -built to go in "unstable" (this will be changed obviously). - -Note also that the .changes file claims to be for i386 even though the -package is for architecture "all". This is a bug in debhelper. - -Finally, if you've just created a repository, you want to run: - -$ reprepro -Vb /path createsymlinks - -since this will create "kitten" -> "testing" symlinks. You only need to -do this once. - -Removing packages -================= - -Fairly simple: - -$ reprepro --ignore=wrongdistribution -Vb /path remove kitten \ - rabbitmq-server - -Subsequent updates and "dupload" -================================ - -You can run the "reprepro" command above again to update the versions of -software in the repository. Since we probably don't want to have to log -into the machine in question to do this, we can use "dupload". This is a -tool which uploads Debian packages. The supplied file "dupload.conf" can -be renamed to ~/.dupload.conf. If you then run: - -$ dupload -to rabbit --nomail . - -in the folder with the .changes file, dupload will: - -* create an incoming folder in your home directory on the repository -machine -* upload everything there -* run reprepro to move the packages into the repository -* "rm -rf" the uploads folder - -This is a bit cheesy but should be enough for our purposes. The -dupload.conf uses scp and ssh so you need a public-key login (or tpye -your password lots). - -There's still an open question as to whether dupload is really needed -for our case. - -Keys and signing -================ - -We currently sign the package as we build it; but we also need to sign -the repository. The key is currently on my machine (mrforgetful) and has -ID 056E8E56. We should put it on CDs though. - -reprepro will automatically sign the repository if we have the right -SignWith line in the configuration, AND the secret key is installed on -the repository server. This is obviously not ideal; not sure what the -solution is right now. - -You can export the public key with: - -$ gpg --export --armor 056E8E56 > rabbit.pub - -(Open question: do we want to get our key on subkeys.pgp.net?) - -We can then add this key to the website and tell our users to import the -key into apt with: - -# apt-key add rabbit.pub - diff --git a/packaging/debs/apt-repository/distributions b/packaging/debs/apt-repository/distributions deleted file mode 100644 index 183eb034..00000000 --- a/packaging/debs/apt-repository/distributions +++ /dev/null @@ -1,7 +0,0 @@ -Origin: RabbitMQ -Label: RabbitMQ Repository for Debian / Ubuntu etc -Suite: testing -Codename: kitten -Architectures: arm hppa ia64 mips mipsel s390 sparc i386 amd64 powerpc source -Components: main -Description: RabbitMQ Repository for Debian / Ubuntu etc diff --git a/packaging/debs/apt-repository/dupload.conf b/packaging/debs/apt-repository/dupload.conf deleted file mode 100644 index 9ceed760..00000000 --- a/packaging/debs/apt-repository/dupload.conf +++ /dev/null @@ -1,16 +0,0 @@ -package config; - -$rabbit_user = "simon"; -$rabbit_host = "mrforgetful.lshift.net"; -$rabbit_repo_path = "/srv/debian"; -$rabbit_reprepro_extra_args = "--ignore=wrongdistribution"; - -$cfg{'rabbit'} = { - fqdn => "$rabbit_host", - login => "$rabbit_user", - method => "scp", - incoming => "incoming", -}; - -$preupload{'deb'} = "ssh ${rabbit_host} mkdir incoming"; -$postupload{'deb'} = "ssh ${rabbit_host} \"cd incoming && reprepro ${$rabbit_reprepro_extra_args} -Vb ${rabbit_repo_path} include kitten *.changes && cd .. && rm -r incoming\""; diff --git a/packaging/generic-unix/Makefile b/packaging/generic-unix/Makefile deleted file mode 100644 index 4eade6c7..00000000 --- a/packaging/generic-unix/Makefile +++ /dev/null @@ -1,24 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_TARBALL=rabbitmq-server-generic-unix-$(VERSION) - -dist: - $(MAKE) -C ../.. VERSION=$(VERSION) srcdist - tar -zxvf ../../dist/$(SOURCE_DIR).tar.gz - - $(MAKE) -C $(SOURCE_DIR) \ - TARGET_DIR=`pwd`/$(TARGET_DIR) \ - SBIN_DIR=`pwd`/$(TARGET_DIR)/sbin \ - MAN_DIR=`pwd`/$(TARGET_DIR)/share/man \ - install - - tar -zcf $(TARGET_TARBALL).tar.gz $(TARGET_DIR) - rm -rf $(SOURCE_DIR) $(TARGET_DIR) - -clean: clean_partial - rm -f rabbitmq-server-generic-unix-*.tar.gz - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/packaging/gentoo/ChangeLog b/packaging/gentoo/ChangeLog deleted file mode 100644 index 363a3285..00000000 --- a/packaging/gentoo/ChangeLog +++ /dev/null @@ -1,33 +0,0 @@ - -24 Dec 2008; Jamal Natour -added files/1.5.0/init.d: - rabbitmq-cluster.example.confd - added sample clustering configuration - rabbitmq-server.confd - added default configuration for rabbitmq-server - rabbitmq-server.initd - added gentoo runscript for rabbitmq-server - -24 Dec 2008; Jamal Natour -added files/1.5.0/logrotate.d: - rabbitmq-server - added logrotate script - -24 Dec 2008; Jamal Natour -added files/1.5.0/man: - rabbitmq-multi.1 - added man page for rabbitmq-multi script - rabbitmq-server.1 - added man page for rabbitmq-server script - rabbitmq.5 - added man page for rabbitmq script - rabbitmqctl.1 - added man page for rabbitmqctl script - -24 Dec 2008; Jamal Natour -added files/1.5.0/misc: - rabbitmq-invoke - wrapper script for rabbitmq-multi - Added to allow cloning of output to logs and maintaining the - correct log permissions (i.e. with permissions of the rabbit user, not root) - -24 Dec 2008; Jamal Natour -added files/1.5.0/patches: - 0001-change-conf-dir.patch - patch to make scripts read from conf.d - -24 Dec 2008; Jamal Natour -Initial import. Ebuild modified from an overlay ebuild written by Holger Hoffstätte - In response to #192278 - -*rabbitmq-server-1.5.0-r1 (24 Dec 2008) diff --git a/packaging/gentoo/Manifest b/packaging/gentoo/Manifest deleted file mode 100644 index 9b48649a..00000000 --- a/packaging/gentoo/Manifest +++ /dev/null @@ -1,16 +0,0 @@ -AUX 1.5.0/init.d/rabbitmq-cluster.example.confd 241 RMD160 0867205a81966fd182bd97555e9b1edafd51370a SHA1 6c282cc416dfd2958d58235f9fa53b8c7652d3fd SHA256 3a6c8dcbdbea954eb978627821a73da7183a660954b45b57eb32b5f5ae60964a -AUX 1.5.0/init.d/rabbitmq-server.confd 1216 RMD160 e94a441eba30ef64eed8bb79f5ac13ef89eeefa2 SHA1 0ebf38b1c3a3581f3bee8779fdb7c76fe9045b15 SHA256 b605f23c38b5c5e20c58b9e0f7f2b5ab7cb50b30f0e3ed92f146fad9c2f20570 -AUX 1.5.0/init.d/rabbitmq-server.initd 2645 RMD160 84ec40238b37fc349b2c75ac119ad39b4a402500 SHA1 aff1391fc986785180e0e9a49f2ad4330ce587e0 SHA256 6e7828d14f86a2f0ee3994249cd4d21e304058385fb450aff66bf764dad0ecee -AUX 1.5.0/logrotate.d/rabbitmq-server 243 RMD160 478f65d93f3a73032339c2a288f98321804c6353 SHA1 8d33a7f683468c431eb9ca0d823b8a24b462cdc2 SHA256 27d9d657362dbfcc40c13dd1b8c69fea6585050e4af2a6d24f7cecb521805365 -AUX 1.5.0/man/rabbitmq-multi.1 5106 RMD160 f2b6d01eb2784adedffcf8d5fe68e284482c0c25 SHA1 ab9263f1f4040fdfdc5230507d9c3c54bde2f92c SHA256 b32e10e58a4b21ac17f6cf9659d16ac4528399b2661c2007df2cd8664474c732 -AUX 1.5.0/man/rabbitmq-server.1 6225 RMD160 da65f3094d736ba3bab5bce66e71f8219e0bab43 SHA1 0b102e3adacd4f4c73c61904b7bf4b92d382e926 SHA256 f272e0f23c30c9aad286ef4de268c38d0aabba72367f396fe78323d743593aad -AUX 1.5.0/man/rabbitmq.5 5995 RMD160 98d29652f8b47c5c2a5ee22e8e221f772e6708c4 SHA1 731b1902fb2309923d8c1311cac890b125e30973 SHA256 76dc3fa47f544c717702e9b870a20a716fb53a0c5c1ef62505705a74282241f1 -AUX 1.5.0/man/rabbitmqctl.1 12541 RMD160 5ead956acdcc8f93e633c8907d8d0cabb375664b SHA1 160f31f8eb11a45fe2087f9b6e9d34a1c0491d0e SHA256 4aa393988628eace7230d0dde785561e8afde76ecc80c491b3e4c53742ccc33a -AUX 1.5.0/misc/rabbitmq-invoke 2501 RMD160 f51369d32bcf72116e580e8311558ce8fdff4ab9 SHA1 a450c014a8af4b9bb85d77e51ae67b47b152ecfa SHA256 528c3b4fbf744186b3a0507cbcd5a40016a918436c56a22e5bb9f257331eee3b -AUX 1.5.0/patches/0001-change-conf-dir.patch 1040 RMD160 715680427661520a0cdaec4adf4a512ac7554b48 SHA1 21a7d55b2fdd8388cecde4f36f85e26fcd465b53 SHA256 fecc2e54887e5dc40bdc9c10c4b287098f2f99d1918b0dfbdc60199f55c4a502 -DIST rabbitmq-server-1.5.0.tar.gz 111389 RMD160 f9dded4c9fe338c07b7e9606ac2c51cdbc0bc67b SHA1 a27f2bcaf2cd2557fd5ed1defdfed9a519199bc4 SHA256 0531d8a62dbeb018a69672fc638ff324b8a92e4c9674520c046b4dae117fa72a -DIST rabbitmq-server-generic-unix-1.5.0.tar.gz 354152 RMD160 864345792c8ff4d7dbcd1c31f9694df62a68f2e5 SHA1 477081f64270ea066c5c6f115105741212afdef6 SHA256 5c1a9ab3f317e99ff951336c19a8f3528016c73d70ff83e6c084f50aad6e2838 -EBUILD rabbitmq-server-1.5.0-r1.ebuild 5030 RMD160 8ddfee7d92995f0c6943affb3b479c6b401b87aa SHA1 d1d32b7b8d327b2f3cf1b1bf00a135fcde7c05bd SHA256 bf19f37e825c4f9356a6dcda0687350a06d29fddd3c9bf4d0b3188269f0e421b -EBUILD rabbitmq-server-1.5.0.ebuild 1051 RMD160 35f9549863af11a127f096783a57dbc0ff3421eb SHA1 166b02e0a531303ce68d7c7b761374c27b831d8f SHA256 794bca4f2c1926e3913e69326e914a783d914816cd21f531b9c870b7ccfdd89f -MISC ChangeLog 1325 RMD160 e137ba50c491c8d81f6a7d690e259e63f12fa4bf SHA1 9e86ce4016507cb6ade014768e25bcc66cd5f429 SHA256 bd7cd66e913497ef5a52020009ba64142e7b0999df424de6269ea1c32c4061d5 -MISC metadata.xml 559 RMD160 5efae60ed39f36816a4717004d771658ea0c0405 SHA1 cf40daad082d73f2a6a91932431818565b26c4f9 SHA256 89a2dc095e90eaaa579b7b7169968cfe79f7d1636276e2b2a43f02c644a0f97c diff --git a/packaging/gentoo/files/1.5.0/init.d/rabbitmq-cluster.example.confd b/packaging/gentoo/files/1.5.0/init.d/rabbitmq-cluster.example.confd deleted file mode 100644 index 5888af91..00000000 --- a/packaging/gentoo/files/1.5.0/init.d/rabbitmq-cluster.example.confd +++ /dev/null @@ -1,5 +0,0 @@ -# Copy this to /etc/conf.d after making the appropriate changes and removing the comments -# more information on rabbit clusters can be found at http://www.rabbitmq.com/clustering.html - -# replace HOSTNAME with your hostname -[rabbit@HOSTNAME] diff --git a/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.confd b/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.confd deleted file mode 100644 index d2271168..00000000 --- a/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.confd +++ /dev/null @@ -1,38 +0,0 @@ -# Set this to the directory where Mnesia database files should be placed. -MNESIA_BASE=/var/lib/rabbitmq/mnesia - -# Log files generated by the server will be placed in this directory. -LOG_BASE=/var/log/rabbitmq - -# This can be useful if you want to run more than one node per machine -# NOTE NODENAME should be unique per erlang-node-and-machine combination. -#Refer to "clustering on a single machine" in the documentation for more. -NODENAME=rabbit - -# This can be changed if you only want to bind to one network interface. -NODE_IP_ADDRESS=0.0.0.0. - -# start port for the rabbit node, -# when starting multiple rabbit nodes, the port numbers will increment -# by one for each additional rabbitmq node -NODE_PORT=5672 - -# number of inital rabbit nodes started -NODE_COUNT=1 - -# this is the file that holds the pids of the rabbit nodes -PIDS_FILE=/var/lib/rabbitmq/pids - -# If this file is present it is used by the server to -# auto-configure a RabbitMQ cluster. See the clustering -# guide for details. -CLUSTER_CONFIG_FILE=/etc/conf.d/rabbitmq-cluster - -# the name used in the init script system messages -DESC=rabbitmq-server - -# name of the user whom rabbit runs as -USER=rabbitmq - -# suffix of rabbit logs -ROTATED_LOG_SUFFIX=-old diff --git a/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.initd b/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.initd deleted file mode 100644 index b7ee8fcd..00000000 --- a/packaging/gentoo/files/1.5.0/init.d/rabbitmq-server.initd +++ /dev/null @@ -1,132 +0,0 @@ -#!/sbin/runscript -# Copyright 1999-2007 Gentoo Foundation -# Distributed under the terms of the GNU General Public License v2 - -# Description: RabbitMQ broker -# Short-Description: Enable AMQP service provided by RabbitMQ broker -opts="${opts} status rotate" -depend() -{ - need net logger localmount - after bootmisc - use dns -} - -CONFIG_FILE="/etc/conf.d/rabbitmq-server" - -# wrapper to allows us to have gentoo style logging -WRAPPER=/usr/sbin/rabbitmq-invoke -DAEMON=/usr/sbin/rabbitmq-multi - -# pinched from debian initscript and modified for gentoo -start_rabbitmq() -{ - info_log="${LOG_BASE}/startup_log" - error_log="${LOG_BASE}/startup_err" - set +e - RETVAL=1 - su -s /bin/sh -c "$WRAPPER $info_log $error_log start_all ${NODE_COUNT} &" ${USER} - case "$?" in - 0) - einfo "SUCCESS" - RETVAL=0 - ;; - 1) ERR="TIMEOUT" - eerror "${ERR} - check ${info_log}" - eerror "${ERR} - check ${error_log}" - ;; - *) ERR="FAILED" - eerror "${ERR} - check ${info_log}" - eerror "${ERR} - check ${error_log}" - ;; - esac - set -e -} - -stop_rabbitmq() -{ - info_log="${LOG_BASE}/shutdown_log" - error_log="${LOG_BASE}/shutdown_err" - set +e - status_rabbitmq quiet - if [ "$RETVAL" == "0" ] ; then - su -s /bin/sh -c "$WRAPPER $info_log $error_log stop_all" ${USER} - RETVAL=$? - if [ ${RETVAL} != 0 ] ; then - ERR="FAILED" - eerror "${ERR} - check ${info_log}" - eerror "${ERR} - check ${error_log}" - fi - else - eerror "No nodes running" - RETVAL=0 - fi - set -e -} - -status_rabbitmq() -{ - RETVAL=0 - set +e - if [ "$1" != "quiet" ] ; then - su -s /bin/sh -c "${DAEMON} status" ${USER} 2>&1 - else - su -s /bin/sh -c "${DAEMON} status" ${USER} > /dev/null 2>&1 - fi - if [ $? != 0 ] ; then - RETVAL=1 - fi - set -e -} - -rotate_logs_rabbitmq() -{ - set +e - su -s /bin/sh -c "${DAEMON} rotate_logs ${ROTATED_LOG_SUFFIX}" ${USER} 2>&1 - set -e -} - -# gentoo funcs -start() -{ - checkconfig || return 1 - ebegin "Starting ${DESC}: " - start_rabbitmq - eend $? -} - -stop() -{ - ebegin "Stopping ${DESC}: " - stop_rabbitmq - eend $? -} - -restart() -{ - svc_stop - svc_start -} - -status() -{ - ebegin "Querying status of ${DESC}: " - status_rabbitmq - eend $? -} - -rotate() -{ - ebegin "Rotating log files for ${DESC}: " - rotate_logs_rabbitmq - eend $? -} - -checkconfig() -{ - if [ ! -r ${CONFIG_FILE} ] || [ ! -x ${DAEMON} ] || [ ! -x ${WRAPPER} ] ; - then - eerror "You need a ${CONFIG_FILE} file to run rabbitmq" - return 1 - fi -} diff --git a/packaging/gentoo/files/1.5.0/logrotate.d/rabbitmq-server b/packaging/gentoo/files/1.5.0/logrotate.d/rabbitmq-server deleted file mode 100644 index d3cb4ca0..00000000 --- a/packaging/gentoo/files/1.5.0/logrotate.d/rabbitmq-server +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /etc/init.d/rabbitmq-server rotate - endscript -} diff --git a/packaging/gentoo/files/1.5.0/man/rabbitmq-multi.1 b/packaging/gentoo/files/1.5.0/man/rabbitmq-multi.1 deleted file mode 100644 index f4132f9e..00000000 --- a/packaging/gentoo/files/1.5.0/man/rabbitmq-multi.1 +++ /dev/null @@ -1,176 +0,0 @@ -.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.05) -.\" -.\" Standard preamble: -.\" ======================================================================== -.de Sp \" Vertical space (when we can't use .PP) -.if t .sp .5v -.if n .sp -.. -.de Vb \" Begin verbatim text -.ft CW -.nf -.ne \\$1 -.. -.de Ve \" End verbatim text -.ft R -.fi -.. -.\" Set up some character translations and predefined strings. \*(-- will -.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left -.\" double quote, and \*(R" will give a right double quote. \*(C+ will -.\" give a nicer C++. Capital omega is used to do unbreakable dashes and -.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, -.\" nothing in troff, for use with C<>. -.tr \(*W- -.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' -.ie n \{\ -. ds -- \(*W- -. ds PI pi -. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch -. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch -. ds L" "" -. ds R" "" -. ds C` "" -. ds C' "" -'br\} -.el\{\ -. ds -- \|\(em\| -. ds PI \(*p -. ds L" `` -. ds R" '' -'br\} -.\" -.\" Escape single quotes in literal strings from groff's Unicode transform. -.ie \n(.g .ds Aq \(aq -.el .ds Aq ' -.\" -.\" If the F register is turned on, we'll generate index entries on stderr for -.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index -.\" entries marked with X<> in POD. Of course, you'll have to process the -.\" output yourself in some meaningful fashion. -.ie \nF \{\ -. de IX -. tm Index:\\$1\t\\n%\t"\\$2" -.. -. nr % 0 -. rr F -.\} -.el \{\ -. de IX -.. -.\} -.\" -.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). -.\" Fear. Run. Save yourself. No user-serviceable parts. -. \" fudge factors for nroff and troff -.if n \{\ -. ds #H 0 -. ds #V .8m -. ds #F .3m -. ds #[ \f1 -. ds #] \fP -.\} -.if t \{\ -. ds #H ((1u-(\\\\n(.fu%2u))*.13m) -. ds #V .6m -. ds #F 0 -. ds #[ \& -. ds #] \& -.\} -. \" simple accents for nroff and troff -.if n \{\ -. ds ' \& -. ds ` \& -. ds ^ \& -. ds , \& -. ds ~ ~ -. ds / -.\} -.if t \{\ -. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" -. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' -. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' -. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' -. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' -. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' -.\} -. \" troff and (daisy-wheel) nroff accents -.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' -.ds 8 \h'\*(#H'\(*b\h'-\*(#H' -.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] -.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' -.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' -.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] -.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] -.ds ae a\h'-(\w'a'u*4/10)'e -.ds Ae A\h'-(\w'A'u*4/10)'E -. \" corrections for vroff -.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' -.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' -. \" for low resolution devices (crt and lpr) -.if \n(.H>23 .if \n(.V>19 \ -\{\ -. ds : e -. ds 8 ss -. ds o a -. ds d- d\h'-1'\(ga -. ds D- D\h'-1'\(hy -. ds th \o'bp' -. ds Th \o'LP' -. ds ae ae -. ds Ae AE -.\} -.rm #[ #] #H #V #F C -.\" ======================================================================== -.\" -.IX Title "rabbitmq-multi 1" -.TH rabbitmq-multi 1 "2008-12-17" "" "RabbitMQ AMQP Server" -.\" For nroff, turn off justification. Always turn off hyphenation; it makes -.\" way too many mistakes in technical documents. -.if n .ad l -.nh -.SH "NAME" -rabbitmq\-multi \- start/stop local cluster RabbitMQ nodes -.SH "SYNOPSIS" -.IX Header "SYNOPSIS" -rabbitmq-multi \fIcommand\fR [command option] -.SH "DESCRIPTION" -.IX Header "DESCRIPTION" -RabbitMQ is an implementation of \s-1AMQP\s0, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an \s-1AMQP\s0 broker. -.PP -rabbitmq-multi scripts allows for easy set-up of a cluster on a single -machine. -.PP -See also \fIrabbitmq\-server\fR\|(1) for configuration information. -.SH "COMMANDS" -.IX Header "COMMANDS" -start_all \fIcount\fR - start count nodes with unique names, listening on all \s-1IP\s0 addresses - and on sequential ports starting from 5672. -.PP -status - print the status of all running RabbitMQ nodes -.PP -stop_all - stop all local RabbitMQ nodes -.PP -rotate_logs - rotate log files for all local and running RabbitMQ nodes -.SH "EXAMPLES" -.IX Header "EXAMPLES" -Start 3 local RabbitMQ nodes with unique, sequential port numbers: -.PP -.Vb 1 -\& rabbitmq\-multi start_all 3 -.Ve -.SH "SEE ALSO" -.IX Header "SEE ALSO" -\&\fIrabbitmq\-server\fR\|(1), \fIrabbitmqctl\fR\|(1) -.SH "AUTHOR" -.IX Header "AUTHOR" -The RabbitMQ Team -.SH "REFERENCES" -.IX Header "REFERENCES" -RabbitMQ Web Site: http://www.rabbitmq.com diff --git a/packaging/gentoo/files/1.5.0/man/rabbitmq-server.1 b/packaging/gentoo/files/1.5.0/man/rabbitmq-server.1 deleted file mode 100644 index fb94907d..00000000 --- a/packaging/gentoo/files/1.5.0/man/rabbitmq-server.1 +++ /dev/null @@ -1,199 +0,0 @@ -.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.05) -.\" -.\" Standard preamble: -.\" ======================================================================== -.de Sp \" Vertical space (when we can't use .PP) -.if t .sp .5v -.if n .sp -.. -.de Vb \" Begin verbatim text -.ft CW -.nf -.ne \\$1 -.. -.de Ve \" End verbatim text -.ft R -.fi -.. -.\" Set up some character translations and predefined strings. \*(-- will -.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left -.\" double quote, and \*(R" will give a right double quote. \*(C+ will -.\" give a nicer C++. Capital omega is used to do unbreakable dashes and -.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, -.\" nothing in troff, for use with C<>. -.tr \(*W- -.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' -.ie n \{\ -. ds -- \(*W- -. ds PI pi -. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch -. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch -. ds L" "" -. ds R" "" -. ds C` "" -. ds C' "" -'br\} -.el\{\ -. ds -- \|\(em\| -. ds PI \(*p -. ds L" `` -. ds R" '' -'br\} -.\" -.\" Escape single quotes in literal strings from groff's Unicode transform. -.ie \n(.g .ds Aq \(aq -.el .ds Aq ' -.\" -.\" If the F register is turned on, we'll generate index entries on stderr for -.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index -.\" entries marked with X<> in POD. Of course, you'll have to process the -.\" output yourself in some meaningful fashion. -.ie \nF \{\ -. de IX -. tm Index:\\$1\t\\n%\t"\\$2" -.. -. nr % 0 -. rr F -.\} -.el \{\ -. de IX -.. -.\} -.\" -.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). -.\" Fear. Run. Save yourself. No user-serviceable parts. -. \" fudge factors for nroff and troff -.if n \{\ -. ds #H 0 -. ds #V .8m -. ds #F .3m -. ds #[ \f1 -. ds #] \fP -.\} -.if t \{\ -. ds #H ((1u-(\\\\n(.fu%2u))*.13m) -. ds #V .6m -. ds #F 0 -. ds #[ \& -. ds #] \& -.\} -. \" simple accents for nroff and troff -.if n \{\ -. ds ' \& -. ds ` \& -. ds ^ \& -. ds , \& -. ds ~ ~ -. ds / -.\} -.if t \{\ -. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" -. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' -. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' -. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' -. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' -. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' -.\} -. \" troff and (daisy-wheel) nroff accents -.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' -.ds 8 \h'\*(#H'\(*b\h'-\*(#H' -.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] -.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' -.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' -.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] -.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] -.ds ae a\h'-(\w'a'u*4/10)'e -.ds Ae A\h'-(\w'A'u*4/10)'E -. \" corrections for vroff -.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' -.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' -. \" for low resolution devices (crt and lpr) -.if \n(.H>23 .if \n(.V>19 \ -\{\ -. ds : e -. ds 8 ss -. ds o a -. ds d- d\h'-1'\(ga -. ds D- D\h'-1'\(hy -. ds th \o'bp' -. ds Th \o'LP' -. ds ae ae -. ds Ae AE -.\} -.rm #[ #] #H #V #F C -.\" ======================================================================== -.\" -.IX Title "rabbitmq-server 1" -.TH rabbitmq-server 1 "2008-12-17" "" "RabbitMQ AMQP Server" -.\" For nroff, turn off justification. Always turn off hyphenation; it makes -.\" way too many mistakes in technical documents. -.if n .ad l -.nh -.SH "NAME" -rabbitmq\-server \- start RabbitMQ AMQP server -.SH "SYNOPSIS" -.IX Header "SYNOPSIS" -rabbitmq-server [\-detached] -.SH "DESCRIPTION" -.IX Header "DESCRIPTION" -RabbitMQ is an implementation of \s-1AMQP\s0, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an \s-1AMQP\s0 broker. -.PP -Running rabbitmq-server in the foreground displays a banner message, -and reports on progress in the startup sequence, concluding with the -message \*(L"broker running\*(R", indicating that the RabbitMQ broker has been -started successfully. To shut down the server, just terminate the -process or use \fIrabbitmqctl\fR\|(1). -.SH "ENVIRONMENT" -.IX Header "ENVIRONMENT" -\&\fB\s-1Following variables are read from /etc/conf.d/rabbitmq-server\s0\fR -.PP -\&\fB\s-1RABBITMQ_MNESIA_BASE\s0\fR - Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory - where Mnesia database files should be placed. -.PP -\&\fB\s-1RABBITMQ_LOG_BASE\s0\fR - Defaults to /var/log/rabbitmq. Log files generated by the server - will be placed in this directory. -.PP -\&\fB\s-1RABBITMQ_NODENAME\s0\fR - Defaults to rabbit. This can be useful if you want to run more - than one node per machine \- \fB\s-1RABBITMQ_NODENAME\s0\fR should be unique - per erlang-node-and-machine combination. See clustering on a - single machine guide at - http://www.rabbitmq.com/clustering.html#single\-machine for - details. -.PP -\&\fB\s-1RABBITMQ_NODE_IP_ADDRESS\s0\fR - Defaults to 0.0.0.0. This can be changed if you only want to bind - to one network interface. -.PP -\&\fB\s-1RABBITMQ_NODE_PORT\s0\fR - Defaults to 5672. -.PP -\&\fB\s-1RABBITMQ_CLUSTER_CONFIG_FILE\s0\fR - Defaults to /etc/default/rabbitmq_cluster.config. If this file is - present it is used by the server to auto-configure a RabbitMQ - cluster. - See the clustering guide at http://www.rabbitmq.com/clustering.html - for details. -.SH "OPTIONS" -.IX Header "OPTIONS" -\&\fB\-detached\fR start the server process in the background -.SH "EXAMPLES" -.IX Header "EXAMPLES" -Run RabbitMQ \s-1AMQP\s0 server in the background: -.PP -.Vb 1 -\& rabbitmq\-server \-detached -.Ve -.SH "SEE ALSO" -.IX Header "SEE ALSO" -\&\fIrabbitmq\-multi\fR\|(1), \fIrabbitmqctl\fR\|(1) -.SH "AUTHOR" -.IX Header "AUTHOR" -The RabbitMQ Team -.SH "REFERENCES" -.IX Header "REFERENCES" -RabbitMQ Web Site: http://www.rabbitmq.com diff --git a/packaging/gentoo/files/1.5.0/man/rabbitmq.5 b/packaging/gentoo/files/1.5.0/man/rabbitmq.5 deleted file mode 100644 index 37abbb08..00000000 --- a/packaging/gentoo/files/1.5.0/man/rabbitmq.5 +++ /dev/null @@ -1,186 +0,0 @@ -.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.05) -.\" -.\" Standard preamble: -.\" ======================================================================== -.de Sp \" Vertical space (when we can't use .PP) -.if t .sp .5v -.if n .sp -.. -.de Vb \" Begin verbatim text -.ft CW -.nf -.ne \\$1 -.. -.de Ve \" End verbatim text -.ft R -.fi -.. -.\" Set up some character translations and predefined strings. \*(-- will -.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left -.\" double quote, and \*(R" will give a right double quote. \*(C+ will -.\" give a nicer C++. Capital omega is used to do unbreakable dashes and -.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, -.\" nothing in troff, for use with C<>. -.tr \(*W- -.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' -.ie n \{\ -. ds -- \(*W- -. ds PI pi -. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch -. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch -. ds L" "" -. ds R" "" -. ds C` "" -. ds C' "" -'br\} -.el\{\ -. ds -- \|\(em\| -. ds PI \(*p -. ds L" `` -. ds R" '' -'br\} -.\" -.\" Escape single quotes in literal strings from groff's Unicode transform. -.ie \n(.g .ds Aq \(aq -.el .ds Aq ' -.\" -.\" If the F register is turned on, we'll generate index entries on stderr for -.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index -.\" entries marked with X<> in POD. Of course, you'll have to process the -.\" output yourself in some meaningful fashion. -.ie \nF \{\ -. de IX -. tm Index:\\$1\t\\n%\t"\\$2" -.. -. nr % 0 -. rr F -.\} -.el \{\ -. de IX -.. -.\} -.\" -.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). -.\" Fear. Run. Save yourself. No user-serviceable parts. -. \" fudge factors for nroff and troff -.if n \{\ -. ds #H 0 -. ds #V .8m -. ds #F .3m -. ds #[ \f1 -. ds #] \fP -.\} -.if t \{\ -. ds #H ((1u-(\\\\n(.fu%2u))*.13m) -. ds #V .6m -. ds #F 0 -. ds #[ \& -. ds #] \& -.\} -. \" simple accents for nroff and troff -.if n \{\ -. ds ' \& -. ds ` \& -. ds ^ \& -. ds , \& -. ds ~ ~ -. ds / -.\} -.if t \{\ -. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" -. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' -. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' -. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' -. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' -. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' -.\} -. \" troff and (daisy-wheel) nroff accents -.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' -.ds 8 \h'\*(#H'\(*b\h'-\*(#H' -.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] -.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' -.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' -.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] -.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] -.ds ae a\h'-(\w'a'u*4/10)'e -.ds Ae A\h'-(\w'A'u*4/10)'E -. \" corrections for vroff -.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' -.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' -. \" for low resolution devices (crt and lpr) -.if \n(.H>23 .if \n(.V>19 \ -\{\ -. ds : e -. ds 8 ss -. ds o a -. ds d- d\h'-1'\(ga -. ds D- D\h'-1'\(hy -. ds th \o'bp' -. ds Th \o'LP' -. ds ae ae -. ds Ae AE -.\} -.rm #[ #] #H #V #F C -.\" ======================================================================== -.\" -.IX Title "rabbitmq 5" -.TH rabbitmq 5 "2008-12-17" "" "RabbitMQ AMQP Server" -.\" For nroff, turn off justification. Always turn off hyphenation; it makes -.\" way too many mistakes in technical documents. -.if n .ad l -.nh -.SH "NAME" -/etc/conf.d/rabbitmq \- default settings for RabbitMQ AMQP server -.SH "DESCRIPTION" -.IX Header "DESCRIPTION" -/etc/conf.d/rabbitmq contains variable settings that override the -defaults built in to the RabbitMQ startup scripts. -.PP -The file is interpreted by the system shell, and so should consist of -a sequence of shell environment variable definitions. Normal shell -syntax is permitted (since the file is sourced using the shell \*(L".\*(R" -operator), including line comments starting with \*(L"#\*(R". -.PP -In order of preference, the startup scripts get their values from the -environment, from /etc/conf.d/rabbitmq, and finally from the built-in -default values. For example, for the \fB\s-1RABBITMQ_NODENAME\s0\fR setting, -.PP -\&\fB\s-1RABBITMQ_NODENAME\s0\fR - from the environment is checked first. If it is absent or equal - to the empty string, then -.PP -\&\fB\s-1NODENAME\s0\fR - from /etc/conf.d/rabbitmq is checked next. If it is also absent - or set equal to the empty string, then the default value from the - startup script is used. -.PP -The variable names in /etc/conf.d/rabbitmq are always equal to the -environment variable names, with the \fB\s-1RABBITMQ_\s0\fR prefix removed: -\&\fB\s-1RABBITMQ_NODE_PORT\s0\fR from the environment becomes \fB\s-1NODE_PORT\s0\fR in the -/etc/conf.d/rabbitmq file, etc. -.SH "EXAMPLES" -.IX Header "EXAMPLES" -The following is an example of a complete /etc/conf.d/rabbitmq file -that overrides the default Erlang node name from \*(L"rabbit\*(R" to \*(L"hare\*(R": -.PP -.Vb 4 -\& # I am a complete /etc/conf.d/rabbitmq file. -\& # Comment lines start with a hash character. -\& # This is a /bin/sh script file \- use ordinary envt var syntax -\& NODENAME=hare -.Ve -.SH "SEE ALSO" -.IX Header "SEE ALSO" -\&\fIrabbitmq\-server\fR\|(1), \fIrabbitmq\-multi\fR\|(1), \fIrabbitmqctl\fR\|(1) -.SH "AUTHOR" -.IX Header "AUTHOR" -Originally written by The RabbitMQ Team -.SH "COPYRIGHT" -.IX Header "COPYRIGHT" -This package, the RabbitMQ server is licensed under the \s-1MPL\s0. -.PP -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. -.SH "REFERENCES" -.IX Header "REFERENCES" -RabbitMQ Web Site: http://www.rabbitmq.com diff --git a/packaging/gentoo/files/1.5.0/man/rabbitmqctl.1 b/packaging/gentoo/files/1.5.0/man/rabbitmqctl.1 deleted file mode 100644 index 7032c799..00000000 --- a/packaging/gentoo/files/1.5.0/man/rabbitmqctl.1 +++ /dev/null @@ -1,421 +0,0 @@ -.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.05) -.\" -.\" Standard preamble: -.\" ======================================================================== -.de Sp \" Vertical space (when we can't use .PP) -.if t .sp .5v -.if n .sp -.. -.de Vb \" Begin verbatim text -.ft CW -.nf -.ne \\$1 -.. -.de Ve \" End verbatim text -.ft R -.fi -.. -.\" Set up some character translations and predefined strings. \*(-- will -.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left -.\" double quote, and \*(R" will give a right double quote. \*(C+ will -.\" give a nicer C++. Capital omega is used to do unbreakable dashes and -.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, -.\" nothing in troff, for use with C<>. -.tr \(*W- -.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' -.ie n \{\ -. ds -- \(*W- -. ds PI pi -. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch -. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch -. ds L" "" -. ds R" "" -. ds C` "" -. ds C' "" -'br\} -.el\{\ -. ds -- \|\(em\| -. ds PI \(*p -. ds L" `` -. ds R" '' -'br\} -.\" -.\" Escape single quotes in literal strings from groff's Unicode transform. -.ie \n(.g .ds Aq \(aq -.el .ds Aq ' -.\" -.\" If the F register is turned on, we'll generate index entries on stderr for -.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index -.\" entries marked with X<> in POD. Of course, you'll have to process the -.\" output yourself in some meaningful fashion. -.ie \nF \{\ -. de IX -. tm Index:\\$1\t\\n%\t"\\$2" -.. -. nr % 0 -. rr F -.\} -.el \{\ -. de IX -.. -.\} -.\" -.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). -.\" Fear. Run. Save yourself. No user-serviceable parts. -. \" fudge factors for nroff and troff -.if n \{\ -. ds #H 0 -. ds #V .8m -. ds #F .3m -. ds #[ \f1 -. ds #] \fP -.\} -.if t \{\ -. ds #H ((1u-(\\\\n(.fu%2u))*.13m) -. ds #V .6m -. ds #F 0 -. ds #[ \& -. ds #] \& -.\} -. \" simple accents for nroff and troff -.if n \{\ -. ds ' \& -. ds ` \& -. ds ^ \& -. ds , \& -. ds ~ ~ -. ds / -.\} -.if t \{\ -. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" -. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' -. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' -. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' -. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' -. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' -.\} -. \" troff and (daisy-wheel) nroff accents -.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' -.ds 8 \h'\*(#H'\(*b\h'-\*(#H' -.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] -.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' -.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' -.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] -.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] -.ds ae a\h'-(\w'a'u*4/10)'e -.ds Ae A\h'-(\w'A'u*4/10)'E -. \" corrections for vroff -.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' -.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' -. \" for low resolution devices (crt and lpr) -.if \n(.H>23 .if \n(.V>19 \ -\{\ -. ds : e -. ds 8 ss -. ds o a -. ds d- d\h'-1'\(ga -. ds D- D\h'-1'\(hy -. ds th \o'bp' -. ds Th \o'LP' -. ds ae ae -. ds Ae AE -.\} -.rm #[ #] #H #V #F C -.\" ======================================================================== -.\" -.IX Title "rabbitmqctl 1" -.TH rabbitmqctl 1 "2008-12-17" "" "RabbitMQ AMQP Server" -.\" For nroff, turn off justification. Always turn off hyphenation; it makes -.\" way too many mistakes in technical documents. -.if n .ad l -.nh -.SH "NAME" -rabbitmqctl \- command line tool for managing a RabbitMQ broker -.SH "SYNOPSIS" -.IX Header "SYNOPSIS" -rabbitmqctl [\-n \fInode\fR] \fI [command options] -.SH "DESCRIPTION" -.IX Header "DESCRIPTION" -RabbitMQ is an implementation of \s-1AMQP\s0, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an \s-1AMQP\s0 broker. -.PP -rabbitmqctl is a command line tool for managing a RabbitMQ broker. -It performs all actions by connecting to one of the broker's nodes. -.SH "OPTIONS" -.IX Header "OPTIONS" -\&\fB\-n\fR \fInode\fR - default node is \f(CW\*(C`rabbit@server\*(C'\fR, where server is the local host. - On a host named \f(CW\*(C`server.example.com\*(C'\fR, the node name of the - RabbitMQ Erlang node will usually be rabbit@server (unless - \s-1RABBITMQ_NODENAME\s0 has been set to some non-default value at broker - startup time). The output of hostname \-s is usually the correct - suffix to use after the \*(L"@\*(R" sign. See \fIrabbitmq\-server\fR\|(1) for - details of configuring the RabbitMQ broker. -.PP -\&\fB\-q\fR - quiet output mode is selected with the \fB\-q\fR flag. Informational - messages are suppressed when quiet mode is in effect. -.SH "COMMANDS" -.IX Header "COMMANDS" -.SS "\s-1APPLICATION\s0 \s-1AND\s0 \s-1CLUSTER\s0 \s-1MANAGEMENT\s0" -.IX Subsection "APPLICATION AND CLUSTER MANAGEMENT" -stop - stop the Erlang node on which RabbitMQ broker is running. -.PP -stop_app - stop the RabbitMQ application, leaving the Erlang node running. - This command is typically run prior to performing other management - actions that require the RabbitMQ application to be stopped, - e.g. \fIreset\fR. -.PP -start_app - start the RabbitMQ application. - This command is typically run prior to performing other management - actions that require the RabbitMQ application to be stopped, - e.g. \fIreset\fR. -.PP -status - display various information about the RabbitMQ broker, such as - whether the RabbitMQ application on the current node, its version - number, what nodes are part of the broker, which of these are - running. -.PP -force - return a RabbitMQ node to its virgin state. - Removes the node from any cluster it belongs to, removes all data - from the management database, such as configured users, vhosts and - deletes all persistent messages. -.PP -force_reset - the same as \fIforce\fR command, but resets the node unconditionally, - regardless of the current management database state and cluster - configuration. - It should only be used as a last resort if the database or cluster - configuration has been corrupted. -.PP -rotate_logs [suffix] - instruct the RabbitMQ node to rotate the log files. The RabbitMQ - broker will attempt to append the current contents of the log file - to the file with the name composed of the original name and the - suffix. It will create a new file if such a file does not already - exist. When no \fIsuffix\fR is specified, the empty log file is - simply created at the original location; no rotation takes place. - When an error occurs while appending the contents of the old log - file, the operation behaves in the same way as if no \fIsuffix\fR was - specified. - This command might be helpful when you are e.g. writing your own - logrotate script and you do not want to restart the RabbitMQ node. -.PP -cluster \fIclusternode\fR ... - instruct the node to become member of a cluster with the specified - nodes determined by \fIclusternode\fR option(s). - See http://www.rabbitmq.com/clustering.html for more information - about clustering. -.SS "\s-1USER\s0 \s-1MANAGEMENT\s0" -.IX Subsection "USER MANAGEMENT" -add_user \fIusername\fR \fIpassword\fR - create a user named \fIusername\fR with (initial) password \fIpassword\fR. -.PP -change_password \fIusername\fR \fInewpassword\fR - change the password for the user named \fIusername\fR to \fInewpassword\fR. -.PP -list_users - list all users. -.SS "\s-1ACCESS\s0 \s-1CONTROL\s0" -.IX Subsection "ACCESS CONTROL" -add_vhost \fIvhostpath\fR - create a new virtual host called \fIvhostpath\fR. -.PP -delete_vhost \fIvhostpath\fR - delete a virtual host \fIvhostpath\fR. - That command deletes also all its exchanges, queues and user mappings. -.PP -list_vhosts - list all virtual hosts. -.PP -map_user_vhost \fIusername\fR \fIvhostpath\fR - grant the user named \fIusername\fR access to the virtual host called - \fIvhostpath\fR. -.PP -unmap_user_vhost \fIusername\fR \fIvhostpath\fR - deny the user named \fIusername\fR access to the virtual host called - \fIvhostpath\fR. -.PP -list_user_vhost \fIusername\fR - list all the virtual hosts to which the user named \fIusername\fR has - been granted access. -.SS "\s-1SERVER\s0 \s-1STATUS\s0" -.IX Subsection "SERVER STATUS" -list_queues [\-p \fIvhostpath\fR] [\fIqueueinfoitem\fR ...] - list queue information by virtual host. If no \fIqueueinfoitem\fRs - are specified then then name and number of messages is displayed - for each queue. -.PP -\fIQueue information items\fR -.IX Subsection "Queue information items" -.Sp -.RS 4 -name - URL-encoded name of the queue -.Sp -durable - whether the queue survives server restarts -.Sp -auto_delete - whether the queue will be deleted when no longer used -.Sp -arguments - queue arguments -.Sp -pid - Erlang process identifier associated with the queue -.Sp -messages_ready - number of ready messages -.Sp -messages_unacknowledged - number of unacknowledged messages -.Sp -messages_uncommitted - number of uncommitted messages -.Sp -messages - sum of ready, unacknowledged and uncommitted messages -.Sp -acks_uncommitted - number of uncommitted acknowledgements -.Sp -consumers - number of consumers -.Sp -transactions - number of transactions -.Sp -memory - bytes of memory consumed by the Erlang process for the queue, - including stack, heap and internal structures -.RE -.PP -list_exchanges [\-p \fIvhostpath\fR] [\fIexchangeinfoitem\fR ...] - list exchange information by virtual host. If no - \fIexchangeinfoitem\fRs are specified then name and type is displayed - for each exchange. -.PP -\fIExchange information items\fR -.IX Subsection "Exchange information items" -.Sp -.RS 4 -name - URL-encoded name of the exchange -.Sp -type - exchange type (\fBdirect\fR, \fBtopic\fR or \fBfanout\fR) -.Sp -durable - whether the exchange survives server restarts -.Sp -auto_delete - whether the exchange is deleted when no longer used -.Sp -arguments - exchange arguments -.RE -.PP -list_bindings [\-p \fIvhostpath\fR] - list bindings by virtual host. Each line contains exchange name, - routing key and queue name (all \s-1URL\s0 encoded) and arguments. -.PP -list_connections [\fIconnectioninfoitem\fR ...] - list connection information. If no \fIconnectioninfoitem\fRs are - specified then the user, peer address and peer port are displayed. -.PP -\fIConnection information items\fR -.IX Subsection "Connection information items" -.Sp -.RS 4 -pid - Erlang process id associated with the connection -.Sp -address - server \s-1IP\s0 number -.Sp -port - server port -.Sp -peer_address - peer address -.Sp -peer_port - peer port -.Sp -state - connection state (\fBpre-init\fR, \fBstarting\fR, \fBtuning\fR, \fBopening\fR, - \fBrunning\fR, \fBclosing\fR, \fBclosed\fR) -.Sp -channels - number of channels using the connection -.Sp -user - username associated with the connection -.Sp -vhost - URL-encoded virtual host -.Sp -timeout - connection timeout -.Sp -frame_max - maximum frame size (bytes) -.Sp -recv_oct - octets received -.Sp -recv_cnt - packets received -.Sp -send_oct - octets sent -.Sp -send_cnt - packets sent -.Sp -send_pend - send queue size -.RE -.PP -The list_queues, list_exchanges and list_bindings commands accept an -optional virtual host parameter for which to display results, defaulting -to \fI\*(L"/\*(R"\fR. The default can be overridden with the \fB\-p\fR flag. Result -columns for these commands and list_connections are tab-separated. -.SH "EXAMPLES" -.IX Header "EXAMPLES" -Create a user named foo with (initial) password bar at the Erlang node -rabbit@test: -.PP -.Vb 1 -\& rabbitmqctl \-n rabbit@test add_user foo bar -.Ve -.PP -Grant user named foo access to the virtual host called test at the -default Erlang node: -.PP -.Vb 1 -\& rabbitmqctl map_user_vhost foo test -.Ve -.PP -Append the current logs' content to the files with \*(L".1\*(R" suffix and reopen -them: -.PP -.Vb 1 -\& rabbitmqctl rotate_logs .1 -.Ve -.SH "SEE ALSO" -.IX Header "SEE ALSO" -\&\fIrabbitmq\-multi\fR\|(1), \fIrabbitmq\-server\fR\|(1) -.SH "AUTHOR" -.IX Header "AUTHOR" -The RabbitMQ Team -.SH "REFERENCES" -.IX Header "REFERENCES" -RabbitMQ Web Site: http://www.rabbitmq.com diff --git a/packaging/gentoo/files/1.5.0/misc/rabbitmq-invoke b/packaging/gentoo/files/1.5.0/misc/rabbitmq-invoke deleted file mode 100644 index 53c954f5..00000000 --- a/packaging/gentoo/files/1.5.0/misc/rabbitmq-invoke +++ /dev/null @@ -1,70 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2009 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2009 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -# -# Gentoo specific wrapper script for rabbitmq-multi to allow creation of logs with correct ownership - -# rabbitmq-1.5.0-r1 installs to this location -DAEMON=/usr/sbin/rabbitmq-multi - - # we need this script installed correctly for us to work - if [ ! -x "${DAEMON}" ] ; - then - echo "Error can't locate `basename $DAEMON` under `dirname $DAEMON`" - exit `false` - fi - - # output directed to stdout gets logged to this file - info_log=$1 - shift 1 - if [ -z "${info_log}" ] ; - then - echo "Usage `basename $0` [--background] output-log error-log" - exit `false` - fi - - # output directed to stderr gets logged to this file - error_log=$1 - shift 1 - if [ -z "${error_log}" ] ; - then - echo "Usage `basename $0` [--background] output-log error-log" - exit `false` - fi - - # duplicate stdin/stderr to logs and screen - ( ( ( \ - ${DAEMON} $* \ - 3>&1 1>&2 2>&1 \ - ) | tee ${info_log} \ - ) 3>&2 2>&1 1>&3 | tee ${error_log} \ - ) diff --git a/packaging/gentoo/files/1.5.0/patches/0001-change-conf-dir.patch b/packaging/gentoo/files/1.5.0/patches/0001-change-conf-dir.patch deleted file mode 100644 index 9b3f5501..00000000 --- a/packaging/gentoo/files/1.5.0/patches/0001-change-conf-dir.patch +++ /dev/null @@ -1,24 +0,0 @@ -diff -rNup scripts/rabbitmq-multi scripts-new/rabbitmq-multi ---- scripts/rabbitmq-multi 2008-12-17 18:38:14.000000000 +0000 -+++ scripts-new/rabbitmq-multi 2008-12-24 18:13:15.000000000 +0000 -@@ -30,7 +30,7 @@ - ## Contributor(s): ______________________________________. - ## - --[ -f /etc/default/rabbitmq ] && . /etc/default/rabbitmq -+[ -f /etc/conf.d/rabbitmq ] && . /etc/conf.d/rabbitmq - - [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} - [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=rabbit -diff -rNup scripts/rabbitmq-server scripts-new/rabbitmq-server ---- scripts/rabbitmq-server 2008-12-17 18:38:14.000000000 +0000 -+++ scripts-new/rabbitmq-server 2008-12-24 18:13:15.000000000 +0000 -@@ -30,7 +30,7 @@ - ## Contributor(s): ______________________________________. - ## - --[ -f /etc/default/rabbitmq ] && . /etc/default/rabbitmq -+[ -f /etc/conf.d/rabbitmq ] && . /etc/conf.d/rabbitmq - - [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} - [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=rabbit diff --git a/packaging/gentoo/metadata.xml b/packaging/gentoo/metadata.xml deleted file mode 100644 index fe4b71e1..00000000 --- a/packaging/gentoo/metadata.xml +++ /dev/null @@ -1,20 +0,0 @@ - - - - no-herd - - - Install rabbitmq docs - - - - jamal@lshift.net - Jamal Natour - - - - This package provides RabbitMQ, an server implementation of AMQP. - AMQP is the emerging standard for high performance enterprise messaging. - http://www.rabbitmq.com/faq.html#what-is-amqp - - diff --git a/packaging/gentoo/rabbitmq-server-1.5.0-r1.ebuild b/packaging/gentoo/rabbitmq-server-1.5.0-r1.ebuild deleted file mode 100644 index b8d01004..00000000 --- a/packaging/gentoo/rabbitmq-server-1.5.0-r1.ebuild +++ /dev/null @@ -1,175 +0,0 @@ -# copyright 1999-2008 gentoo foundation -# distributed under the terms of the gnu general public license v2 -# $header: $ - -inherit eutils -DESCRIPTION="RabbitMQ is a high-performance AMQP-compliant message broker written in Erlang." -HOMEPAGE="http://www.rabbitmq.com/" -SRC_URI="http://www.rabbitmq.com/releases/${PN}/v${PV}/${P}.tar.gz" -LICENSE="MPL" -SLOT="0" -KEYWORDS="~alpha amd64 ~ppc ~ppc64 ~sparc x86" -IUSE="+docs" - -# runtime time deps -RDEPEND="dev-lang/erlang - app-admin/logrotate" - -# build time deps -DEPEND="dev-lang/erlang - dev-python/simplejson" - -src_install() -{ -# Erlang module - einfo "Installing rabbit erlang module" - local targetdir="/usr/$(get_libdir)/erlang/lib/${P}" - dodir "${targetdir}" \ - || die "failed to create ${targetdir} for ${P}" - - cp -dpr ${S}/ebin ${S}/include "${D}/${targetdir}" \ - || die "failed to install erlang module for ${P}" - - fperms 700 ${targetdir} \ - || die "failed to chmod erlang module for ${P}" - - fowners rabbitmq:rabbitmq ${targetdir} \ - || die "failed to chown erlang module for ${P}" - -# Server scripts - einfo "Installing rabbit scripts" - cd ${S}/scripts - dosbin ${PN/server/multi} \ - || die "failed to install rabbitmq-multi for ${P}" - dosbin ${PN} \ - || die "failed to install rabbitmq-server for ${P}" - dosbin ${PN/-server/ctl} \ - || die "failed to install rabbitmqctl for ${P}" - dosbin ${FILESDIR}/${PV}/misc/${PN/server/invoke} \ - || die "failed to install rabbitmq-invoke for ${P}" - -# Docs - if use docs; then - einfo "Installing rabbit docs" - cd ${S} - dodoc INSTALL LICENSE LICENSE-MPL-RabbitMQ \ - || die "Failed when installing rabbit docs" - fi - -# Man pages - einfo "installing rabbit man pages" - doman ${FILESDIR}/${PV}/man/${PN/server/multi.1} \ - || die "Install of rabbitmq-multi manpage failed" - - doman ${FILESDIR}/${PV}/man/${PN/server/server.1} \ - || die "Install of rabbitmq-server manpage failed" - - doman ${FILESDIR}/${PV}/man/${PN/-server/.5} \ - || die "Install of rabbitmq manpage failed" - - doman ${FILESDIR}/${PV}/man/${PN/-server/ctl.1} \ - || die "Install of rabbitmqctl manpage failed" - -# Server configuration - einfo "Installing rabbit configuration" - local fname=${PN/server/cluster.example} - newconfd ${FILESDIR}/${PV}/init.d/${PN}.confd ${PN} \ - || die "failed to install conf.d file for ${P}" - -# Example clustering configuration - einfo "Installing example rabbit cluster configuration" - newconfd ${FILESDIR}/${PV}/init.d/${fname}.confd ${fname} \ - || die "failed to install ${fname} for ${P}" - -# Server init.d runscript - einfo "Installing rabbit init.d script" - newinitd ${FILESDIR}/${PV}/init.d/${PN}.initd ${PN} || die "failed to install init.d script for ${P}" - -# Log rotation script - einfo "Installing rabbit logrotate configuration" - insinto /etc/logrotate.d/ - doins ${FILESDIR}/${PV}/logrotate.d/${PN} || die "failed to install logrotate.d file for ${P}" - -# Log directory - dodir "/var/log/rabbitmq" \ - || die "failed to create log directory for ${P}" - - dodir /var/lib/rabbitmq \ - || die "couldn't create mnesia home" - -# mnesia - einfo "fixing user permissions for rabbitmq" - fperms 700 /var/lib/rabbitmq \ - || die "couldn't chmod mnesia home" - - fowners rabbitmq:rabbitmq /var/lib/rabbitmq \ - || die "couldn't chown mnesia home" - -# rabbit logs - einfo "fixing user permissions for rabbitmq logs" - fperms 700 /var/log/rabbitmq \ - || die "couldn't chmod rabbitmq log base" - - fowners rabbitmq:rabbitmq /var/log/rabbitmq \ - || die "couldn't chown rabbitmq log base" - -# rabbit home - einfo "fixing user permissions for rabbitmq home" - dodir /var/tmp/rabbitmq \ - || die "couldn't create rabbitmq home" - fperms 700 /var/tmp/rabbitmq \ - || die "couldn't chmod rabbitmq home" - - fowners rabbitmq:rabbitmq /var/tmp/rabbitmq \ - || die "couldn't chown rabbitmq home" -} - -unpack() -{ - unpack ${A} \ - || die "failed to unpack ${A}" - -} - -src_compile() -{ - einfo "Compiling rabbitmq-server" - cd "${S}" - # fix: change script includes to use files in /etc/conf.d - epatch ${FILESDIR}/${PV}/patches/0001-change-conf-dir.patch \ - || die "failed to patch ${S}" - emake clean || die "failed to clean ${P}" - emake || die "failed to make ${P}" -} - -pkg_setup() -{ - # add rabbitmq user and group so we can run as a nologin user - einfo "adding rabbitmq group" - enewgroup rabbitmq \ - || die "couldn't create rabbitmq group" - - # rabbit requires a writeable home directory - einfo "adding rabbitmq user" - enewuser rabbitmq -1 -1 /var/tmp/rabbitmq rabbitmq \ - || die "couldn't create rabbitmq user" -} - -pkg_postinst() -{ - # tell user this is not an offical ebuild - ewarn "IMPORTANT:" - ewarn "This is an unofficial ebuild for RabbitMQ (server) " - ewarn "If you encounter any problems, do NOT file bugs to gentoo" - ewarn "bugzilla. Instead, post into this ebuild's topic on the" - ewarn "Gentoo Bugzilla list" - ewarn - ewarn "link:" - ewarn "http://bugs.gentoo.org/show_bug.cgi?id=192278" - - # explain how to run as daemon - elog "You can configure RabbitMQ to run as a daemon by running:" - elog - elog "rc-update add rabbitmq-server default" - elog -} diff --git a/packaging/gentoo/rabbitmq-server-1.5.0.ebuild b/packaging/gentoo/rabbitmq-server-1.5.0.ebuild deleted file mode 100644 index 9aa7ae4b..00000000 --- a/packaging/gentoo/rabbitmq-server-1.5.0.ebuild +++ /dev/null @@ -1,39 +0,0 @@ -# Copyright 1999-2008 Gentoo Foundation -# Distributed under the terms of the GNU General Public License v2 -# $Header: $ - -inherit eutils - -DESCRIPTION="RabbitMQ is a high-performance AMQP-compliant message broker written in Erlang." -HOMEPAGE="http://www.rabbitmq.com/" -SRC_URI="http://www.rabbitmq.com/releases/rabbitmq-server/v${PV}/rabbitmq-server-generic-unix-${PV}.tar.gz" -LICENSE="MPL" -SLOT="0" -KEYWORDS="~alpha ~amd64 ~ppc ~ppc64 ~sparc ~x86" -IUSE="" - -# Q: is RDEPEND-only sufficient for a binary package, since we don't compile? -DEPEND="dev-lang/erlang" -RDEPEND="${DEPEND}" - -# grr: the packaged directory contains an underscore -MODNAME="rabbitmq_server-${PV}" -S="${WORKDIR}/${MODNAME}" - -src_install() { - # erlang module - local targetdir="/usr/$(get_libdir)/erlang/lib/${MODNAME}" - dodir "${targetdir}" - cp -dpR ebin include "${D}/${targetdir}" - - # scripts - dosbin sbin/* - - # docs - dodoc INSTALL LICENSE LICENSE-MPL-RabbitMQ - - # TODO: - # config to set env vars as per INSTALL? - # set LOGDIR to /var/log/rabbitmq.log - # run as different user? -} diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile deleted file mode 100644 index e69de29b..00000000 diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in deleted file mode 100644 index e1f58212..00000000 --- a/packaging/macports/Portfile.in +++ /dev/null @@ -1,122 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version @VERSION@ -revision 1 -categories net -maintainers rabbitmq.com:tonyg -platforms darwin -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage @BASE_URL@ -master_sites @BASE_URL@releases/rabbitmq-server/v${version}/ - -checksums \ - md5 @md5@ \ - sha1 @sha1@ \ - rmd160 @rmd160@ - -depends_build port:erlang -depends_run port:erlang - -platform darwin 7 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -platform darwin 8 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -platform darwin 9 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -# no need for simplejson on Snow Leopard or higher - - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin -set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin - -use_configure no - -use_parallel_build yes - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq.conf):${prefix}\\1:g" \ - ${realsbin}/rabbitmq-env - reinplace -E "s:(CLUSTER_CONFIG_FILE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(LOG_BASE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(MNESIA_BASE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(PIDS_FILE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-multi - xinstall -m 555 ${filespath}/rabbitmq-asroot-script-wrapper \ - ${wrappersbin}/rabbitmq-activate-plugins - - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-activate-plugins - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-activate-plugins - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmqctl - file copy ${wrappersbin}/rabbitmq-activate-plugins ${wrappersbin}/rabbitmq-deactivate-plugins -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/net/rabbitmq-server/Portfile.in b/packaging/macports/net/rabbitmq-server/Portfile.in deleted file mode 100644 index 9d841979..00000000 --- a/packaging/macports/net/rabbitmq-server/Portfile.in +++ /dev/null @@ -1,104 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version %VERSION% -revision 0 -categories net -maintainers tonyg@rabbitmq.com -platforms darwin -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage http://www.rabbitmq.com/ -master_sites http://www.rabbitmq.com/releases/rabbitmq-server/v${version}/ - -checksums \ - md5 %MD5% \ - sha1 %SHA1% \ - rmd160 %RMD160% - -depends_build port:erlang port:py25-simplejson -depends_run port:erlang - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin - -use_configure no - -use_parallel_build yes - -build.args PYTHON=${prefix}/bin/python2.5 - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/erlang/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq.conf):${prefix}\\1:g" \ - ${sbindir}/rabbitmq-multi \ - ${sbindir}/rabbitmq-server \ - ${sbindir}/rabbitmqctl - reinplace -E "s:(CLUSTER_CONFIG_FILE)=/:\\1=${prefix}/:" \ - ${sbindir}/rabbitmq-multi \ - ${sbindir}/rabbitmq-server \ - ${sbindir}/rabbitmqctl - reinplace -E "s:(LOG_BASE)=/:\\1=${prefix}/:" \ - ${sbindir}/rabbitmq-multi \ - ${sbindir}/rabbitmq-server \ - ${sbindir}/rabbitmqctl - reinplace -E "s:(MNESIA_BASE)=/:\\1=${prefix}/:" \ - ${sbindir}/rabbitmq-multi \ - ${sbindir}/rabbitmq-server \ - ${sbindir}/rabbitmqctl - reinplace -E "s:(PIDS_FILE)=/:\\1=${prefix}/:" \ - ${sbindir}/rabbitmq-multi \ - ${sbindir}/rabbitmq-server \ - ${sbindir}/rabbitmqctl - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-multi - - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-multi - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmqctl - -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff deleted file mode 100644 index 45b49496..00000000 --- a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff +++ /dev/null @@ -1,10 +0,0 @@ ---- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 -+++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 -@@ -22,6 +22,7 @@ - ; - --pid=none - -+UserNamerabbitmq - Debug - Disabled - OnDemand diff --git a/packaging/windows/Makefile b/packaging/windows/Makefile deleted file mode 100644 index f17fe777..00000000 --- a/packaging/windows/Makefile +++ /dev/null @@ -1,34 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_ZIP=rabbitmq-server-windows-$(VERSION) - -dist: - $(MAKE) -C ../.. VERSION=$(VERSION) srcdist - tar -zxvf ../../dist/$(SOURCE_DIR).tar.gz - $(MAKE) -C $(SOURCE_DIR) - - mkdir $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-server.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-service.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmqctl.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-multi.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-activate-plugins.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-deactivate-plugins.bat $(SOURCE_DIR)/sbin - rm -rf $(SOURCE_DIR)/scripts - rm -rf $(SOURCE_DIR)/codegen* $(SOURCE_DIR)/Makefile - rm -f $(SOURCE_DIR)/README - rm -rf $(SOURCE_DIR)/docs - - mv $(SOURCE_DIR) $(TARGET_DIR) - pod2text --loose rabbitmq-service.pod $(TARGET_DIR)/readme-service.txt - unix2dos $(TARGET_DIR)/readme-service.txt - zip -r $(TARGET_ZIP).zip $(TARGET_DIR) - rm -rf $(TARGET_DIR) - -clean: clean_partial - rm -f rabbitmq-server-windows-*.zip - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/packaging/windows/rabbitmq-service.pod b/packaging/windows/rabbitmq-service.pod deleted file mode 100644 index 7c4d3ef2..00000000 --- a/packaging/windows/rabbitmq-service.pod +++ /dev/null @@ -1,131 +0,0 @@ -=head1 NAME - -rabbitmq-service - manage RabbitMQ AMQP service - -=head1 SYNOPSIS - -rabbitmq-service.bat command - -=head1 DESCRIPTION - -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -Running B allows the RabbitMQ broker to be run as a -service on NT/2000/2003/XP/Vista® environments. The RabbitMQ broker -service can be started and stopped using the Windows® services -applet. - -By default the service will run in the authentication context of the -local system account. It is therefore necessary to synchronise Erlang -cookies between the local system account (typically -C and the account that will be used to -run B. - -=head1 COMMANDS - -=head2 help - -Display usage information. - -=head2 install - -Install the service. The service will not be started. -Subsequent invocations will update the service parameters if -relevant environment variables were modified. - -=head2 remove - -Remove the service. If the service is running then it will -automatically be stopped before being removed. No files will be -deleted as a consequence and B will remain operable. - -=head2 start - -Start the service. The service must have been correctly installed -beforehand. - -=head2 stop - -Stop the service. The service must be running for this command to -have any effect. - -=head2 disable - -Disable the service. This is the equivalent of setting the startup -type to B using the service control panel. - -=head2 enable - -Enable the service. This is the equivalent of setting the startup -type to B using the service control panel. - -=head1 ENVIRONMENT - -=head2 RABBITMQ_SERVICENAME - -Defaults to RabbitMQ. -This is the location of log and database directories. - -=head2 RABBITMQ_BASE - -Defaults to the application data directory of the current user. -This is the location of log and database directories. - -=head2 RABBITMQ_NODENAME - -Defaults to "rabbit". This can be useful if you want to run more than -one node per machine - B should be unique per -erlang-node-and-machine combination. See clustering on a single -machine guide at -L for details. - -=head2 RABBITMQ_NODE_IP_ADDRESS - -Defaults to "0.0.0.0". This can be changed if you only want to bind -to one network interface. - -=head2 RABBITMQ_NODE_PORT - -Defaults to 5672. - -=head2 ERLANG_SERVICE_MANAGER_PATH - -Defaults to F. This is -the installation location of the Erlang service manager. - -=head2 CLUSTER_CONFIG_FILE - -If this file is present it is used by the server to -auto-configure a RabbitMQ cluster. See the clustering guide -at L for details. - -=head2 RABBITMQ_CONSOLE_LOG - -Set this varable to B or B to have the console -output from the server redirected to a file named B.debug -in the application data directory of the user that installed the service. -Under Vista this will be F. -Under previous versions of Windows this will be -F. -If B is set to B then a new file will be -created each time the service starts. If B is -set to B then the file will be overwritten each time the -service starts. The default behaviour when B is -not set or set to a value other than B or B is to discard -the server output. - -=head1 EXAMPLES - -Start a previously-installed RabbitMQ AMQP service: - - rabbitmq-service start - -=head1 AUTHOR - -The RabbitMQ Team - -=head1 REFERENCES - -RabbitMQ Web Site: http://www.rabbitmq.com diff --git a/scripts/rabbitmq-activate-plugins b/scripts/rabbitmq-activate-plugins deleted file mode 100755 index 5ce64c68..00000000 --- a/scripts/rabbitmq-activate-plugins +++ /dev/null @@ -1,47 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2009 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2009 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -. `dirname $0`/rabbitmq-env - -RABBITMQ_EBIN=${RABBITMQ_HOME}/ebin -[ "x" = "x$RABBITMQ_PLUGINS_DIR" ] && RABBITMQ_PLUGINS_DIR="${RABBITMQ_HOME}/plugins" -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR="${RABBITMQ_HOME}/priv/plugins" - -exec erl \ - -pa "$RABBITMQ_EBIN" \ - -rabbit plugins_dir "\"$RABBITMQ_PLUGINS_DIR\"" \ - -rabbit plugins_expand_dir "\"$RABBITMQ_PLUGINS_EXPAND_DIR\"" \ - -rabbit rabbit_ebin "\"$RABBITMQ_EBIN\"" \ - -noinput \ - -hidden \ - -s rabbit_plugin_activator \ - -extra "$@" diff --git a/scripts/rabbitmq-activate-plugins.bat b/scripts/rabbitmq-activate-plugins.bat deleted file mode 100644 index e7aa7095..00000000 --- a/scripts/rabbitmq-activate-plugins.bat +++ /dev/null @@ -1,60 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License at -REM http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -REM License for the specific language governing rights and limitations -REM under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developers of the Original Code are LShift Ltd, -REM Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -REM Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -REM are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -REM Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -REM Ltd. Portions created by Cohesive Financial Technologies LLC are -REM Copyright (C) 2007-2009 Cohesive Financial Technologies -REM LLC. Portions created by Rabbit Technologies Ltd are Copyright -REM (C) 2007-2009 Rabbit Technologies Ltd. -REM -REM All Rights Reserved. -REM -REM Contributor(s): ______________________________________. -REM - -setlocal - -if not exist "%ERLANG_HOME%\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -set RABBITMQ_PLUGINS_DIR=%~dp0..\plugins -set RABBITMQ_PLUGINS_EXPAND_DIR=%~dp0..\priv\plugins -set RABBITMQ_EBIN_DIR=%~dp0..\ebin - -"%ERLANG_HOME%\bin\erl.exe" ^ --pa "%RABBITMQ_EBIN_DIR%" ^ --noinput -hidden ^ --s rabbit_plugin_activator ^ --rabbit plugins_dir \""%RABBITMQ_PLUGINS_DIR:\=/%"\" ^ --rabbit plugins_expand_dir \""%RABBITMQ_PLUGINS_EXPAND_DIR:\=/%"\" ^ --rabbit rabbit_ebin \""%RABBITMQ_EBIN_DIR:\=/%"\" ^ --extra %* - -endlocal diff --git a/scripts/rabbitmq-deactivate-plugins b/scripts/rabbitmq-deactivate-plugins deleted file mode 100755 index 771c4734..00000000 --- a/scripts/rabbitmq-deactivate-plugins +++ /dev/null @@ -1,37 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2009 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2009 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -. `dirname $0`/rabbitmq-env - -RABBITMQ_EBIN=${RABBITMQ_HOME}/ebin - -rm -f ${RABBITMQ_EBIN}/rabbit.rel ${RABBITMQ_EBIN}/rabbit.script ${RABBITMQ_EBIN}/rabbit.boot diff --git a/scripts/rabbitmq-deactivate-plugins.bat b/scripts/rabbitmq-deactivate-plugins.bat deleted file mode 100644 index 40155183..00000000 --- a/scripts/rabbitmq-deactivate-plugins.bat +++ /dev/null @@ -1,39 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License at -REM http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -REM License for the specific language governing rights and limitations -REM under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developers of the Original Code are LShift Ltd, -REM Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -REM Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -REM are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -REM Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -REM Ltd. Portions created by Cohesive Financial Technologies LLC are -REM Copyright (C) 2007-2009 Cohesive Financial Technologies -REM LLC. Portions created by Rabbit Technologies Ltd are Copyright -REM (C) 2007-2009 Rabbit Technologies Ltd. -REM -REM All Rights Reserved. -REM -REM Contributor(s): ______________________________________. -REM - -setlocal - -set RABBITMQ_EBIN_DIR=%~dp0..\ebin - -del /f "%RABBITMQ_EBIN_DIR%"\rabbit.rel "%RABBITMQ_EBIN_DIR%"\rabbit.script "%RABBITMQ_EBIN_DIR%"\rabbit.boot - -endlocal diff --git a/scripts/rabbitmq-env b/scripts/rabbitmq-env deleted file mode 100755 index 69ddbcfe..00000000 --- a/scripts/rabbitmq-env +++ /dev/null @@ -1,53 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2009 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2009 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -# Determine where this script is really located -SCRIPT_PATH="$0" -while [ -h "$SCRIPT_PATH" ] ; do - FULL_PATH=`readlink -f $SCRIPT_PATH 2>/dev/null` - if [ "$?" != "0" ]; then - REL_PATH=`readlink $SCRIPT_PATH` - if expr "$REL_PATH" : '/.*' > /dev/null; then - SCRIPT_PATH="$REL_PATH" - else - SCRIPT_PATH="`dirname "$SCRIPT_PATH"`/$REL_PATH" - fi - else - SCRIPT_PATH=$FULL_PATH - fi -done - -SCRIPT_DIR=`dirname $SCRIPT_PATH` -RABBITMQ_HOME="${SCRIPT_DIR}/.." - -# Load configuration from the rabbitmq.conf file -[ -f /etc/rabbitmq/rabbitmq.conf ] && . /etc/rabbitmq/rabbitmq.conf diff --git a/scripts/rabbitmq-multi b/scripts/rabbitmq-multi deleted file mode 100755 index e69de29b..00000000 diff --git a/scripts/rabbitmq-multi.bat b/scripts/rabbitmq-multi.bat deleted file mode 100755 index 6dda13af..00000000 --- a/scripts/rabbitmq-multi.bat +++ /dev/null @@ -1,88 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License at -REM http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -REM License for the specific language governing rights and limitations -REM under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developers of the Original Code are LShift Ltd, -REM Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -REM Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -REM are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -REM Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -REM Ltd. Portions created by Cohesive Financial Technologies LLC are -REM Copyright (C) 2007-2009 Cohesive Financial Technologies -REM LLC. Portions created by Rabbit Technologies Ltd are Copyright -REM (C) 2007-2009 Rabbit Technologies Ltd. -REM -REM All Rights Reserved. -REM -REM Contributor(s): ______________________________________. -REM - -setlocal - -if "%RABBITMQ_BASE%"=="" ( - set RABBITMQ_BASE=%APPDATA%\RabbitMQ -) - -if "%RABBITMQ_NODENAME%"=="" ( - set RABBITMQ_NODENAME=rabbit -) - -if "%RABBITMQ_NODE_IP_ADDRESS%"=="" ( - if not "%RABBITMQ_NODE_PORT%"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=0.0.0.0 - ) -) else ( - if "%RABBITMQ_NODE_PORT%"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -set RABBITMQ_PIDS_FILE=%RABBITMQ_BASE%\rabbitmq.pids -set RABBITMQ_SCRIPT_HOME=%~sdp0% - -if "%RABBITMQ_CONFIG_FILE%"=="" ( - set RABBITMQ_CONFIG_FILE=%RABBITMQ_BASE%\rabbitmq -) - -if exist "%RABBITMQ_CONFIG_FILE%.config" ( - set RABBITMQ_CONFIG_ARG=-config "%RABBITMQ_CONFIG_FILE%" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -if not exist "%ERLANG_HOME%\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"%ERLANG_HOME%\bin\erl.exe" ^ --pa "%~dp0..\ebin" ^ --noinput -hidden ^ -%RABBITMQ_MULTI_ERL_ARGS% ^ --sname rabbitmq_multi ^ -%RABBITMQ_CONFIG_ARG% ^ --s rabbit_multi ^ -%RABBITMQ_MULTI_START_ARGS% ^ --extra %* - -endlocal diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server deleted file mode 100755 index e69de29b..00000000 diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat deleted file mode 100755 index 6a665918..00000000 --- a/scripts/rabbitmq-server.bat +++ /dev/null @@ -1,161 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License at -REM http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -REM License for the specific language governing rights and limitations -REM under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developers of the Original Code are LShift Ltd, -REM Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -REM Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -REM are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -REM Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -REM Ltd. Portions created by Cohesive Financial Technologies LLC are -REM Copyright (C) 2007-2009 Cohesive Financial Technologies -REM LLC. Portions created by Rabbit Technologies Ltd are Copyright -REM (C) 2007-2009 Rabbit Technologies Ltd. -REM -REM All Rights Reserved. -REM -REM Contributor(s): ______________________________________. -REM - -setlocal - -if "%RABBITMQ_BASE%"=="" ( - set RABBITMQ_BASE=%APPDATA%\RabbitMQ -) - -if "%RABBITMQ_NODENAME%"=="" ( - set RABBITMQ_NODENAME=rabbit -) - -if "%RABBITMQ_NODE_IP_ADDRESS%"=="" ( - if not "%RABBITMQ_NODE_PORT%"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=0.0.0.0 - ) -) else ( - if "%RABBITMQ_NODE_PORT%"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if not exist "%ERLANG_HOME%\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -set RABBITMQ_BASE_UNIX=%RABBITMQ_BASE:\=/% - -if "%RABBITMQ_MNESIA_BASE%"=="" ( - set RABBITMQ_MNESIA_BASE=%RABBITMQ_BASE_UNIX%/db -) -if "%RABBITMQ_LOG_BASE%"=="" ( - set RABBITMQ_LOG_BASE=%RABBITMQ_BASE_UNIX%/log -) -if "%RABBITMQ_LOAD_PATH%"=="" ( - set RABBITMQ_LOAD_PATH=%~dp0..\ebin -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based of size...) is left as an exercice for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=%RABBITMQ_BASE%\log\%RABBITMQ_NODENAME%.log -set SASL_LOGS=%RABBITMQ_BASE%\log\%RABBITMQ_NODENAME%-sasl.log - -set LOGS_BACKUP=%RABBITMQ_BASE%\log\%RABBITMQ_NODENAME%.log%BACKUP_EXTENSION% -set SASL_LOGS_BACKUP=%RABBITMQ_BASE%\log\%RABBITMQ_NODENAME%-sasl.log%BACKUP_EXTENSION% - -if exist "%LOGS%" ( - type "%LOGS%" >> "%LOGS_BACKUP%" -) -if exist "%SASL_LOGS%" ( - type "%SASL_LOGS%" >> "%SASL_LOGS_BACKUP%" -) - -rem End of log management - - -if "%RABBITMQ_CLUSTER_CONFIG_FILE%"=="" ( - set RABBITMQ_CLUSTER_CONFIG_FILE=%RABBITMQ_BASE%\rabbitmq_cluster.config -) -set CLUSTER_CONFIG= -if not exist "%RABBITMQ_CLUSTER_CONFIG_FILE%" GOTO L1 -set CLUSTER_CONFIG=-rabbit cluster_config \""%RABBITMQ_CLUSTER_CONFIG_FILE:\=/%"\" -:L1 - -if "%RABBITMQ_MNESIA_DIR%"=="" ( - set RABBITMQ_MNESIA_DIR=%RABBITMQ_MNESIA_BASE%/%RABBITMQ_NODENAME%-mnesia -) -set RABBITMQ_EBIN_ROOT=%~dp0..\ebin -if exist "%RABBITMQ_EBIN_ROOT%\rabbit.boot" ( - echo Using Custom Boot File "%RABBITMQ_EBIN_ROOT%\rabbit.boot" - set RABBITMQ_BOOT_FILE=%RABBITMQ_EBIN_ROOT%\rabbit - set RABBITMQ_EBIN_PATH= -) else ( - set RABBITMQ_BOOT_FILE=start_sasl - set RABBITMQ_EBIN_PATH=-pa "%RABBITMQ_EBIN_ROOT%" -) -if "%RABBITMQ_CONFIG_FILE%"=="" ( - set RABBITMQ_CONFIG_FILE=%RABBITMQ_BASE%\rabbitmq -) - -if exist "%RABBITMQ_CONFIG_FILE%.config" ( - set RABBITMQ_CONFIG_ARG=-config "%RABBITMQ_CONFIG_FILE%" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "%RABBITMQ_NODE_IP_ADDRESS%"=="" ( - if not "%RABBITMQ_NODE_PORT%"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners [{\""%RABBITMQ_NODE_IP_ADDRESS%"\","%RABBITMQ_NODE_PORT%"}] - ) -) - -"%ERLANG_HOME%\bin\erl.exe" ^ -%RABBITMQ_EBIN_PATH% ^ --noinput ^ --boot "%RABBITMQ_BOOT_FILE%" ^ -%RABBITMQ_CONFIG_ARG% ^ --sname %RABBITMQ_NODENAME% ^ --s rabbit ^ -+W w ^ -+A30 ^ --kernel inet_default_listen_options "[{nodelay, true}, {sndbuf, 16384}, {recbuf, 4096}]" ^ --kernel inet_default_connect_options "[{nodelay, true}]" ^ -%RABBITMQ_LISTEN_ARG% ^ --kernel error_logger {file,\""%RABBITMQ_LOG_BASE%/%RABBITMQ_NODENAME%.log"\"} ^ -%RABBITMQ_SERVER_ERL_ARGS% ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""%RABBITMQ_LOG_BASE%/%RABBITMQ_NODENAME%-sasl.log"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ -%CLUSTER_CONFIG% ^ -%RABBITMQ_SERVER_START_ARGS% ^ -%* - -endlocal diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat deleted file mode 100755 index 3913ada8..00000000 --- a/scripts/rabbitmq-service.bat +++ /dev/null @@ -1,234 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License at -REM http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -REM License for the specific language governing rights and limitations -REM under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developers of the Original Code are LShift Ltd, -REM Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -REM Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -REM are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -REM Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -REM Ltd. Portions created by Cohesive Financial Technologies LLC are -REM Copyright (C) 2007-2009 Cohesive Financial Technologies -REM LLC. Portions created by Rabbit Technologies Ltd are Copyright -REM (C) 2007-2009 Rabbit Technologies Ltd. -REM -REM All Rights Reserved. -REM -REM Contributor(s): ______________________________________. -REM - -setlocal - -if "%RABBITMQ_SERVICENAME%"=="" ( - set RABBITMQ_SERVICENAME=RabbitMQ -) - -if "%RABBITMQ_BASE%"=="" ( - set RABBITMQ_BASE=%APPDATA%\%RABBITMQ_SERVICENAME% -) - -if "%RABBITMQ_NODENAME%"=="" ( - set RABBITMQ_NODENAME=rabbit -) - -if "%RABBITMQ_NODE_IP_ADDRESS%"=="" ( - if not "%RABBITMQ_NODE_PORT%"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=0.0.0.0 - ) -) else ( - if "%RABBITMQ_NODE_PORT%"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if "%ERLANG_SERVICE_MANAGER_PATH%"=="" ( - set ERLANG_SERVICE_MANAGER_PATH=C:\Program Files\erl5.6.5\erts-5.6.5\bin -) - -set CONSOLE_FLAG= -set CONSOLE_LOG_VALID= -for %%i in (new reuse) do if "%%i" == "%RABBITMQ_CONSOLE_LOG%" set CONSOLE_LOG_VALID=TRUE -if "%CONSOLE_LOG_VALID%" == "TRUE" ( - set CONSOLE_FLAG=-debugtype %RABBITMQ_CONSOLE_LOG% -) - -rem *** End of configuration *** - -if not exist "%ERLANG_SERVICE_MANAGER_PATH%\erlsrv.exe" ( - echo. - echo ********************************************** - echo ERLANG_SERVICE_MANAGER_PATH not set correctly. - echo ********************************************** - echo. - echo "%ERLANG_SERVICE_MANAGER_PATH%\erlsrv.exe" not found! - echo Please set ERLANG_SERVICE_MANAGER_PATH to the folder containing "erlsrv.exe". - echo. - exit /B 1 -) - -rem erlang prefers forwardslash as separator in paths -set RABBITMQ_BASE_UNIX=%RABBITMQ_BASE:\=/% - -if "%RABBITMQ_MNESIA_BASE%"=="" ( - set RABBITMQ_MNESIA_BASE=%RABBITMQ_BASE_UNIX%/db -) -if "%RABBITMQ_LOG_BASE%"=="" ( - set RABBITMQ_LOG_BASE=%RABBITMQ_BASE_UNIX%/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based on size...) is left as an exercise for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=%RABBITMQ_BASE%\log\%RABBITMQ_NODENAME%.log -set SASL_LOGS=%RABBITMQ_BASE%\log\%RABBITMQ_NODENAME%-sasl.log - -set LOGS_BACKUP=%RABBITMQ_BASE%\log\%RABBITMQ_NODENAME%.log%BACKUP_EXTENSION% -set SASL_LOGS_BACKUP=%RABBITMQ_BASE%\log\%RABBITMQ_NODENAME%-sasl.log%BACKUP_EXTENSION% - -if exist "%LOGS%" ( - type "%LOGS%" >> "%LOGS_BACKUP%" -) -if exist "%SASL_LOGS%" ( - type "%SASL_LOGS%" >> "%SASL_LOGS_BACKUP%" -) - -rem End of log management - - -if "%RABBITMQ_CLUSTER_CONFIG_FILE%"=="" ( - set RABBITMQ_CLUSTER_CONFIG_FILE=%RABBITMQ_BASE%\rabbitmq_cluster.config -) -set CLUSTER_CONFIG= -if not exist "%RABBITMQ_CLUSTER_CONFIG_FILE%" GOTO L1 -set CLUSTER_CONFIG=-rabbit cluster_config \""%RABBITMQ_CLUSTER_CONFIG_FILE:\=/%"\" -:L1 - -if "%RABBITMQ_MNESIA_DIR%"=="" ( - set RABBITMQ_MNESIA_DIR=%RABBITMQ_MNESIA_BASE%/%RABBITMQ_NODENAME%-mnesia -) - - -if "%1" == "install" goto INSTALL_SERVICE -for %%i in (start stop disable enable list remove) do if "%%i" == "%1" goto MODIFY_SERVICE - -echo. -echo ********************* -echo Service control usage -echo ********************* -echo. -echo %~n0 help - Display this help -echo %~n0 install - Install the %RABBITMQ_SERVICENAME% service -echo %~n0 remove - Remove the %RABBITMQ_SERVICENAME% service -echo. -echo The following actions can also be accomplished by using -echo Windows Services Management Console (services.msc): -echo. -echo %~n0 start - Start the %RABBITMQ_SERVICENAME% service -echo %~n0 stop - Stop the %RABBITMQ_SERVICENAME% service -echo %~n0 disable - Disable the %RABBITMQ_SERVICENAME% service -echo %~n0 enable - Enable the %RABBITMQ_SERVICENAME% service -echo. -exit /B - - -:INSTALL_SERVICE - -if not exist "%RABBITMQ_BASE%" ( - echo Creating base directory %RABBITMQ_BASE% & md "%RABBITMQ_BASE%" -) - -"%ERLANG_SERVICE_MANAGER_PATH%\erlsrv" list %RABBITMQ_SERVICENAME% 2>NUL 1>NUL -if errorlevel 1 ( - "%ERLANG_SERVICE_MANAGER_PATH%\erlsrv" add %RABBITMQ_SERVICENAME% -) else ( - echo %RABBITMQ_SERVICENAME% service is already present - only updating service parameters -) - -set RABBITMQ_EBIN_ROOT=%~dp0..\ebin -if exist "%RABBITMQ_EBIN_ROOT%\rabbit.boot" ( - echo Using Custom Boot File "%RABBITMQ_EBIN_ROOT%\rabbit.boot" - set RABBITMQ_BOOT_FILE=%RABBITMQ_EBIN_ROOT%\rabbit - set RABBITMQ_EBIN_PATH= -) else ( - set RABBITMQ_BOOT_FILE=start_sasl - set RABBITMQ_EBIN_PATH=-pa "%RABBITMQ_EBIN_ROOT%" -) -if "%RABBITMQ_CONFIG_FILE%"=="" ( - set RABBITMQ_CONFIG_FILE=%RABBITMQ_BASE%\rabbitmq -) - -if exist "%RABBITMQ_CONFIG_FILE%.config" ( - set RABBITMQ_CONFIG_ARG=-config "%RABBITMQ_CONFIG_FILE%" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "%RABBITMQ_NODE_IP_ADDRESS%"=="" ( - if not "%RABBITMQ_NODE_PORT%"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners "[{\"%RABBITMQ_NODE_IP_ADDRESS%\", %RABBITMQ_NODE_PORT%}]" - ) -) - -set ERLANG_SERVICE_ARGUMENTS= ^ -%RABBITMQ_EBIN_PATH% ^ --boot "%RABBITMQ_BOOT_FILE%" ^ -%RABBITMQ_CONFIG_ARG% ^ --s rabbit ^ -+W w ^ -+A30 ^ --kernel inet_default_listen_options "[{nodelay,true},{sndbuf,16384},{recbuf,4096}]" ^ --kernel inet_default_connect_options "[{nodelay,true}]" ^ -%RABBITMQ_LISTEN_ARG% ^ --kernel error_logger {file,\""%RABBITMQ_LOG_BASE%/%RABBITMQ_NODENAME%.log"\"} ^ -%RABBITMQ_SERVER_ERL_ARGS% ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""%RABBITMQ_LOG_BASE%/%RABBITMQ_NODENAME%-sasl.log"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""%RABBITMQ_MNESIA_DIR%"\" ^ --mnesia dump_log_write_threshold 10000 ^ -%CLUSTER_CONFIG% ^ -%RABBITMQ_SERVER_START_ARGS% ^ -%* - -set ERLANG_SERVICE_ARGUMENTS=%ERLANG_SERVICE_ARGUMENTS:\=\\% -set ERLANG_SERVICE_ARGUMENTS=%ERLANG_SERVICE_ARGUMENTS:"=\"% - -"%ERLANG_SERVICE_MANAGER_PATH%\erlsrv" set %RABBITMQ_SERVICENAME% ^ --machine "%ERLANG_SERVICE_MANAGER_PATH%\erl.exe" ^ --env ERL_CRASH_DUMP="%RABBITMQ_BASE_UNIX%/log" ^ --workdir "%RABBITMQ_BASE%" ^ --stopaction "rabbit:stop_and_halt()." ^ --sname %RABBITMQ_NODENAME% ^ -%CONSOLE_FLAG% ^ --args "%ERLANG_SERVICE_ARGUMENTS%" > NUL -goto END - - -:MODIFY_SERVICE - -"%ERLANG_SERVICE_MANAGER_PATH%\erlsrv" %1 %RABBITMQ_SERVICENAME% -goto END - - -:END - -endlocal diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl deleted file mode 100755 index a332afc6..00000000 --- a/scripts/rabbitmqctl +++ /dev/null @@ -1,49 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2009 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2009 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -NODENAME=rabbit - -. `dirname $0`/rabbitmq-env - -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} - -exec erl \ - -pa "${RABBITMQ_HOME}/ebin" \ - -noinput \ - -hidden \ - ${RABBITMQ_CTL_ERL_ARGS} \ - -sname rabbitmqctl$$ \ - -s rabbit_control \ - -nodename $RABBITMQ_NODENAME \ - -extra "$@" - diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat deleted file mode 100755 index 512e8587..00000000 --- a/scripts/rabbitmqctl.bat +++ /dev/null @@ -1,53 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License at -REM http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -REM License for the specific language governing rights and limitations -REM under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developers of the Original Code are LShift Ltd, -REM Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -REM Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -REM are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -REM Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -REM Ltd. Portions created by Cohesive Financial Technologies LLC are -REM Copyright (C) 2007-2009 Cohesive Financial Technologies -REM LLC. Portions created by Rabbit Technologies Ltd are Copyright -REM (C) 2007-2009 Rabbit Technologies Ltd. -REM -REM All Rights Reserved. -REM -REM Contributor(s): ______________________________________. -REM - -setlocal - -if "%RABBITMQ_NODENAME%"=="" ( - set RABBITMQ_NODENAME=rabbit -) - -if not exist "%ERLANG_HOME%\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"%ERLANG_HOME%\bin\erl.exe" -pa "%~dp0..\ebin" -noinput -hidden %RABBITMQ_CTL_ERL_ARGS% -sname rabbitmqctl -s rabbit_control -nodename %RABBITMQ_NODENAME% -extra %* - -endlocal diff --git a/src/bpqueue.erl b/src/bpqueue.erl deleted file mode 100644 index b33abdbb..00000000 --- a/src/bpqueue.erl +++ /dev/null @@ -1,296 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(bpqueue). - -%% Block-prefixed queue. This implements a queue of queues, but -%% supporting the normal queue interface. Each block has a prefix and -%% it is guaranteed that no two consecutive blocks have the same -%% prefix. len/1 returns the flattened length of the queue and is O(1) - --export([new/0, is_empty/1, len/1, in/3, in_r/3, out/1, out_r/1, join/2, - foldl/3, foldr/3, from_list/1, to_list/1, map_fold_filter_l/4, - map_fold_filter_r/4]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(bpqueue() :: {non_neg_integer(), queue()}). --type(prefix() :: any()). --type(value() :: any()). --type(result() :: {'empty', bpqueue()} | - {{'value', prefix(), value()}, bpqueue()}). - --spec(new/0 :: () -> bpqueue()). --spec(is_empty/1 :: (bpqueue()) -> boolean()). --spec(len/1 :: (bpqueue()) -> non_neg_integer()). --spec(in/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(in_r/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(out/1 :: (bpqueue()) -> result()). --spec(out_r/1 :: (bpqueue()) -> result()). --spec(join/2 :: (bpqueue(), bpqueue()) -> bpqueue()). --spec(foldl/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(foldr/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(from_list/1 :: ([{prefix(), [value()]}]) -> bpqueue()). --spec(to_list/1 :: (bpqueue()) -> [{prefix(), [value()]}]). --spec(map_fold_filter_l/4 :: - (fun ((prefix()) -> boolean()), - fun ((value(), B) -> ({prefix(), value(), B} | 'stop')), B, - bpqueue()) -> {bpqueue(), B}). --spec(map_fold_filter_r/4 :: - (fun ((prefix()) -> boolean()), - fun ((value(), B) -> ({prefix(), value(), B} | 'stop')), B, - bpqueue()) -> {bpqueue(), B}). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> - {0, queue:new()}. - -is_empty({0, _Q}) -> - true; -is_empty(_BPQ) -> - false. - -len({N, _Q}) -> - N. - -in(Prefix, Value, {0, Q}) -> - {1, queue:in({Prefix, queue:in(Value, Q)}, Q)}; -in(Prefix, Value, BPQ) -> - in1({fun queue:in/2, fun queue:out_r/1}, Prefix, Value, BPQ). - -in_r(Prefix, Value, BPQ = {0, _Q}) -> - in(Prefix, Value, BPQ); -in_r(Prefix, Value, BPQ) -> - in1({fun queue:in_r/2, fun queue:out/1}, Prefix, Value, BPQ). - -in1({In, Out}, Prefix, Value, {N, Q}) -> - {N+1, - case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, In(Value, InnerQ)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, queue:in(Value, queue:new())}, Q) - end}. - -in_q(Prefix, Queue, BPQ = {0, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - N -> {N, queue:in({Prefix, Queue}, Q)} - end; -in_q(Prefix, Queue, BPQ) -> - in_q1({fun queue:in/2, fun queue:out_r/1, fun queue:join/2}, - Prefix, Queue, BPQ). - -in_q_r(Prefix, Queue, BPQ = {0, _Q}) -> - in_q(Prefix, Queue, BPQ); -in_q_r(Prefix, Queue, BPQ) -> - in_q1({fun queue:in_r/2, fun queue:out/1, - fun (T, H) -> queue:join(H, T) end}, - Prefix, Queue, BPQ). - -in_q1({In, Out, Join}, Prefix, Queue, BPQ = {N, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - M -> {N + M, - case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, Join(InnerQ, Queue)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, Queue}, Q) - end} - end. - -out({0, _Q} = BPQ) -> - {empty, BPQ}; -out(BPQ) -> - out1({fun queue:in_r/2, fun queue:out/1}, BPQ). - -out_r({0, _Q} = BPQ) -> - {empty, BPQ}; -out_r(BPQ) -> - out1({fun queue:in/2, fun queue:out_r/1}, BPQ). - -out1({In, Out}, {N, Q}) -> - {{value, {Prefix, InnerQ}}, Q1} = Out(Q), - {{value, Value}, InnerQ1} = Out(InnerQ), - Q2 = case queue:is_empty(InnerQ1) of - true -> Q1; - false -> In({Prefix, InnerQ1}, Q1) - end, - {{value, Prefix, Value}, {N-1, Q2}}. - -join({0, _Q}, BPQ) -> - BPQ; -join(BPQ, {0, _Q}) -> - BPQ; -join({NHead, QHead}, {NTail, QTail}) -> - {{value, {Prefix, InnerQHead}}, QHead1} = queue:out_r(QHead), - {NHead + NTail, - case queue:out(QTail) of - {{value, {Prefix, InnerQTail}}, QTail1} -> - queue:join( - queue:in({Prefix, queue:join(InnerQHead, InnerQTail)}, QHead1), - QTail1); - {{value, {_Prefix, _InnerQTail}}, _QTail1} -> - queue:join(QHead, QTail) - end}. - -foldl(_Fun, Init, {0, _Q}) -> - Init; -foldl(Fun, Init, {_N, Q}) -> - fold1(fun queue:out/1, Fun, Init, Q). - -foldr(_Fun, Init, {0, _Q}) -> - Init; -foldr(Fun, Init, {_N, Q}) -> - fold1(fun queue:out_r/1, Fun, Init, Q). - -fold1(Out, Fun, Init, Q) -> - case Out(Q) of - {empty, _Q} -> - Init; - {{value, {Prefix, InnerQ}}, Q1} -> - fold1(Out, Fun, fold1(Out, Fun, Prefix, Init, InnerQ), Q1) - end. - -fold1(Out, Fun, Prefix, Init, InnerQ) -> - case Out(InnerQ) of - {empty, _Q} -> - Init; - {{value, Value}, InnerQ1} -> - fold1(Out, Fun, Prefix, Fun(Prefix, Value, Init), InnerQ1) - end. - -from_list(List) -> - {FinalPrefix, FinalInnerQ, ListOfPQs1, Len} = - lists:foldl( - fun ({_Prefix, []}, Acc) -> - Acc; - ({Prefix, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix, queue:join(InnerQ, queue:from_list(InnerList)), - ListOfPQs, LenAcc + length(InnerList)}; - ({Prefix1, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix1, queue:from_list(InnerList), - [{Prefix, InnerQ} | ListOfPQs], LenAcc + length(InnerList)} - end, {undefined, queue:new(), [], 0}, List), - ListOfPQs2 = [{FinalPrefix, FinalInnerQ} | ListOfPQs1], - [{undefined, InnerQ1} | Rest] = All = lists:reverse(ListOfPQs2), - {Len, queue:from_list(case queue:is_empty(InnerQ1) of - true -> Rest; - false -> All - end)}. - -to_list({0, _Q}) -> - []; -to_list({_N, Q}) -> - lists:map(fun to_list1/1, queue:to_list(Q)). - -to_list1({Prefix, InnerQ}) -> - {Prefix, queue:to_list(InnerQ)}. - -%% map_fold_filter_[lr](FilterFun, Fun, Init, BPQ) -> {BPQ, Init} -%% where FilterFun(Prefix) -> boolean() -%% Fun(Value, Init) -> {Prefix, Value, Init} | stop -%% -%% The filter fun allows you to skip very quickly over blocks that -%% you're not interested in. Such blocks appear in the resulting bpq -%% without modification. The Fun is then used both to map the value, -%% which also allows you to change the prefix (and thus block) of the -%% value, and also to modify the Init/Acc (just like a fold). -map_fold_filter_l(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_l(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1( - {fun queue:out/1, fun queue:in/2, fun in_q/3, fun join/2}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter_r(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_r(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1( - {fun queue:out_r/1, fun queue:in_r/2, fun in_q_r/3, - fun (T, H) -> join(H, T) end}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter1( - Funs = {Out, _In, InQ, Join}, Len, PFilter, Fun, Init, Q, QNew) -> - case Out(Q) of - {empty, _Q} -> - {QNew, Init}; - {{value, {Prefix, InnerQ}}, Q1} -> - case PFilter(Prefix) of - true -> - {Init1, QNew1, Cont} = - map_fold_filter2( - Funs, Fun, Prefix, Prefix, Init, InnerQ, QNew, queue:new()), - case Cont of - false -> - {Join(QNew1, {Len - len(QNew1), Q1}), Init1}; - true -> - map_fold_filter1( - Funs, Len, PFilter, Fun, Init1, Q1, QNew1) - end; - false -> - map_fold_filter1( - Funs, Len, PFilter, Fun, Init, Q1, InQ(Prefix, InnerQ, QNew)) - end - end. - -map_fold_filter2(Funs = {Out, In, InQ, _Join}, Fun, OrigPrefix, Prefix, Init, - InnerQ, QNew, InnerQNew) -> - case Out(InnerQ) of - {empty, _Q} -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), true}; - {{value, Value}, InnerQ1} -> - case Fun(Value, Init) of - stop -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), false}; - {Prefix1, Value1, Init1} -> - case Prefix1 =:= Prefix of - true -> - map_fold_filter2( - Funs, Fun, OrigPrefix, Prefix, Init1, InnerQ1, QNew, - In(Value1, InnerQNew)); - false -> - map_fold_filter2( - Funs, Fun, OrigPrefix, Prefix1, Init1, InnerQ1, - InQ(Prefix, InnerQNew, QNew), - In(Value1, queue:new())) - end - end - end. diff --git a/src/buffering_proxy.erl b/src/buffering_proxy.erl deleted file mode 100644 index 344b719a..00000000 --- a/src/buffering_proxy.erl +++ /dev/null @@ -1,108 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(buffering_proxy). - --export([start_link/2]). - -%% internal - --export([mainloop/4, drain/2]). --export([proxy_loop/3]). - --define(HIBERNATE_AFTER, 5000). - -%%---------------------------------------------------------------------------- - -start_link(M, A) -> - spawn_link( - fun () -> process_flag(trap_exit, true), - ProxyPid = self(), - Ref = make_ref(), - Pid = spawn_link( - fun () -> ProxyPid ! Ref, - mainloop(ProxyPid, Ref, M, - M:init(ProxyPid, A)) end), - proxy_loop(Ref, Pid, empty) - end). - -%%---------------------------------------------------------------------------- - -mainloop(ProxyPid, Ref, M, State) -> - NewState = - receive - {Ref, Messages} -> - NewSt = - lists:foldl(fun (Msg, S) -> - drain(M, M:handle_message(Msg, S)) - end, State, lists:reverse(Messages)), - ProxyPid ! Ref, - NewSt; - Msg -> M:handle_message(Msg, State) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, mainloop, - [ProxyPid, Ref, M, State]) - end, - ?MODULE:mainloop(ProxyPid, Ref, M, NewState). - -drain(M, State) -> - receive - Msg -> ?MODULE:drain(M, M:handle_message(Msg, State)) - after 0 -> - State - end. - -proxy_loop(Ref, Pid, State) -> - receive - Ref -> - ?MODULE:proxy_loop( - Ref, Pid, - case State of - empty -> waiting; - waiting -> exit(duplicate_next); - Messages -> Pid ! {Ref, Messages}, empty - end); - {'EXIT', Pid, Reason} -> - exit(Reason); - {'EXIT', _, Reason} -> - exit(Pid, Reason), - ?MODULE:proxy_loop(Ref, Pid, State); - Msg -> - ?MODULE:proxy_loop( - Ref, Pid, - case State of - empty -> [Msg]; - waiting -> Pid ! {Ref, [Msg]}, empty; - Messages -> [Msg | Messages] - end) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, proxy_loop, [Ref, Pid, State]) - end. diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl deleted file mode 100644 index e8d7cf6e..00000000 --- a/src/file_handle_cache.erl +++ /dev/null @@ -1,769 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(file_handle_cache). - -%% A File Handle Cache -%% -%% This extends a subset of the functionality of the Erlang file -%% module. -%% -%% Some constraints -%% 1) This supports 1 writer, multiple readers per file. Nothing else. -%% 2) Do not open the same file from different processes. Bad things -%% may happen. -%% 3) Writes are all appends. You cannot write to the middle of a -%% file, although you can truncate and then append if you want. -%% 4) Although there is a write buffer, there is no read buffer. Feel -%% free to use the read_ahead mode, but beware of the interaction -%% between that buffer and the write buffer. -%% -%% Some benefits -%% 1) You don't have to remember to call sync before close -%% 2) Buffering is much more flexible than with plain file module, and -%% you can control when the buffer gets flushed out. This means that -%% you can rely on reads-after-writes working, without having to call -%% the expensive sync. -%% 3) Unnecessary calls to position and sync get optimised out. -%% 4) You can find out what your 'real' offset is, and what your -%% 'virtual' offset is (i.e. where the hdl really is, and where it -%% would be after the write buffer is written out). -%% 5) You can find out what the offset was when you last sync'd. -%% -%% There is also a server component which serves to limit the number -%% of open file handles in a "soft" way. By "soft", I mean that the -%% server will never prevent a client from opening a handle, but may -%% immediately tell it to close the handle. Thus you can set the limit -%% to zero and it will still all work correctly, it's just that -%% effectively no caching will take place. The operation of limiting -%% is as follows: -%% -%% On open and close, the client sends messages to the server -%% informing it of opens and closes. This allows the server to keep -%% track of the number of open handles. The client also keeps a -%% gb_tree which is updated on every use of a file handle, mapping the -%% time at which the file handle was last used (timestamp) to the -%% handle. Thus the smallest key in this tree maps to the file handle -%% that has not been used for the longest amount of time. This -%% smallest key is included in the messages to the server. As such, -%% the server keeps track of when the least recently used file handle -%% was used *at the point of the most recent open or close* by each -%% client. -%% -%% Note that this data can go very out of date, by the client using -%% the least recently used handle. -%% -%% When the limit is reached, the server calculates the average age of -%% the last reported least recently used file handle of all the -%% clients. It then tells all the clients to close any handles not -%% used for longer than this average. The client should receive this -%% message and pass it into set_maximum_since_use/1. However, it's -%% highly possible this age will be greater than the ages of all the -%% handles the client knows of because the client has used its file -%% handles in the mean time. Thus at this point it reports to the -%% server the current timestamp at which its least recently used file -%% handle was last used. The server will check two seconds later that -%% either it's back under the limit, in which case all is well again, -%% or if not, it will calculate a new average age. Its data will be -%% much more recent now, and so it's very likely that when this is -%% communicated to the clients, the clients will close file handles. -%% -%% The advantage of this scheme is that there is only communication -%% from the client to the server on open, close, and when in the -%% process of trying to reduce file handle usage. There is no -%% communication from the client to the server on normal file handle -%% operations. This scheme forms a feed back loop - the server doesn't -%% care which file handles are closed, just that some are, and it -%% checks this repeatedly when over the limit. Given the guarantees of -%% now(), even if there is just one file handle open, a limit of 1, -%% and one client, it is certain that when the client calculates the -%% age of the handle, it'll be greater than when the server calculated -%% it, hence it should be closed. -%% -%% Handles which are closed as a result of the server are put into a -%% "soft-closed" state in which the handle is closed (data flushed out -%% and sync'd first) but the state is maintained. The handle will be -%% fully reopened again as soon as needed, thus users of this library -%% do not need to worry about their handles being closed by the server -%% - reopening them when necessary is handled transparently. - --behaviour(gen_server). - --export([open/3, close/1, read/2, append/2, sync/1, position/2, truncate/1, - last_sync_offset/1, current_virtual_offset/1, current_raw_offset/1, - flush/1, copy/3, set_maximum_since_use/1, delete/1, clear/1]). - --export([start_link/0, init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([decrement/0, increment/0]). - --define(SERVER, ?MODULE). --define(RESERVED_FOR_OTHERS, 50). --define(FILE_HANDLES_LIMIT_WINDOWS, 10000000). --define(FILE_HANDLES_LIMIT_OTHER, 1024). --define(FILE_HANDLES_CHECK_INTERVAL, 2000). - -%%---------------------------------------------------------------------------- - --record(file, - { reader_count, - has_writer - }). - --record(handle, - { hdl, - offset, - trusted_offset, - is_dirty, - write_buffer_size, - write_buffer_size_limit, - write_buffer, - at_eof, - is_write, - is_read, - mode, - options, - path, - last_used_at - }). - --record(fhc_state, - { elders, - limit, - count - }). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(ref() :: any()). --type(error() :: {'error', any()}). --type(ok_or_error() :: ('ok' | error())). --type(position() :: ('bof' | 'eof' | {'bof',integer()} | {'eof',integer()} - | {'cur',integer()} | integer())). - --spec(open/3 :: - (string(), [any()], - [{'write_buffer', (non_neg_integer()|'infinity'|'unbuffered')}]) -> - ({'ok', ref()} | error())). --spec(close/1 :: (ref()) -> ('ok' | error())). --spec(read/2 :: (ref(), integer()) -> - ({'ok', ([char()]|binary())} | eof | error())). --spec(append/2 :: (ref(), iodata()) -> ok_or_error()). --spec(sync/1 :: (ref()) -> ok_or_error()). --spec(position/2 :: (ref(), position()) -> - ({'ok', non_neg_integer()} | error())). --spec(truncate/1 :: (ref()) -> ok_or_error()). --spec(last_sync_offset/1 :: (ref()) -> ({'ok', integer()} | error())). --spec(current_virtual_offset/1 :: (ref()) -> ({'ok', integer()} | error())). --spec(current_raw_offset/1 :: (ref()) -> ({'ok', integer()} | error())). --spec(flush/1 :: (ref()) -> ok_or_error()). --spec(copy/3 :: (ref(), ref(), non_neg_integer()) -> - ({'ok', integer()} | error())). --spec(set_maximum_since_use/1 :: (non_neg_integer()) -> 'ok'). --spec(delete/1 :: (ref()) -> ok_or_error()). --spec(clear/1 :: (ref()) -> ok_or_error()). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], [{timeout, infinity}]). - -open(Path, Mode, Options) -> - case is_appender(Mode) of - true -> - {error, append_not_supported}; - false -> - Path1 = filename:absname(Path), - File1 = #file { reader_count = RCount, has_writer = HasWriter } = - case get({Path1, fhc_file}) of - File = #file {} -> File; - undefined -> File = #file { reader_count = 0, - has_writer = false }, - put({Path1, fhc_file}, File), - File - end, - IsWriter = is_writer(Mode), - case IsWriter andalso HasWriter of - true -> {error, writer_exists}; - false -> RCount1 = case is_reader(Mode) of - true -> RCount + 1; - false -> RCount - end, - HasWriter1 = HasWriter orelse IsWriter, - put({Path1, fhc_file}, - File1 #file { reader_count = RCount1, - has_writer = HasWriter1}), - Ref = make_ref(), - case open1(Path1, Mode, Options, Ref, bof) of - {ok, _Handle} -> {ok, Ref}; - Error -> Error - end - end - end. - -close(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> ok; - Handle -> close1(Ref, Handle, hard) - end. - -read(Ref, Count) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_read = false }]) -> - {error, not_open_for_reading}; - ([Handle = #handle { hdl = Hdl, offset = Offset }]) -> - case file:read(Hdl, Count) of - {ok, Data} = Obj -> Offset1 = Offset + iolist_size(Data), - {Obj, - [Handle #handle { offset = Offset1 }]}; - eof -> {eof, [Handle #handle { at_eof = true }]}; - Error -> {Error, [Handle]} - end - end). - -append(Ref, Data) -> - with_handles( - [Ref], - fun ([#handle { is_write = false }]) -> - {error, not_open_for_writing}; - ([Handle]) -> - case maybe_seek(eof, Handle) of - {{ok, _Offset}, #handle { hdl = Hdl, offset = Offset, - write_buffer_size_limit = 0, - at_eof = true } = Handle1} -> - Offset1 = Offset + iolist_size(Data), - {file:write(Hdl, Data), - [Handle1 #handle { is_dirty = true, offset = Offset1 }]}; - {{ok, _Offset}, #handle { write_buffer = WriteBuffer, - write_buffer_size = Size, - write_buffer_size_limit = Limit, - at_eof = true } = Handle1} -> - WriteBuffer1 = [Data | WriteBuffer], - Size1 = Size + iolist_size(Data), - Handle2 = Handle1 #handle { write_buffer = WriteBuffer1, - write_buffer_size = Size1 }, - case Limit /= infinity andalso Size1 > Limit of - true -> {Result, Handle3} = write_buffer(Handle2), - {Result, [Handle3]}; - false -> {ok, [Handle2]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -sync(Ref) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_dirty = false, write_buffer = [] }]) -> - ok; - ([Handle = #handle { hdl = Hdl, offset = Offset, - is_dirty = true, write_buffer = [] }]) -> - case file:sync(Hdl) of - ok -> {ok, [Handle #handle { trusted_offset = Offset, - is_dirty = false }]}; - Error -> {Error, [Handle]} - end - end). - -position(Ref, NewOffset) -> - with_flushed_handles( - [Ref], - fun ([Handle]) -> {Result, Handle1} = maybe_seek(NewOffset, Handle), - {Result, [Handle1]} - end). - -truncate(Ref) -> - with_flushed_handles( - [Ref], - fun ([Handle1 = #handle { hdl = Hdl, offset = Offset, - trusted_offset = TrustedOffset }]) -> - case file:truncate(Hdl) of - ok -> TrustedOffset1 = lists:min([Offset, TrustedOffset]), - {ok, [Handle1 #handle { - at_eof = true, - trusted_offset = TrustedOffset1 }]}; - Error -> {Error, [Handle1]} - end - end). - -last_sync_offset(Ref) -> - with_handles([Ref], fun ([#handle { trusted_offset = TrustedOffset }]) -> - {ok, TrustedOffset} - end). - -current_virtual_offset(Ref) -> - with_handles([Ref], fun ([#handle { at_eof = true, is_write = true, - offset = Offset, - write_buffer_size = Size }]) -> - {ok, Offset + Size}; - ([#handle { offset = Offset }]) -> - {ok, Offset} - end). - -current_raw_offset(Ref) -> - with_handles([Ref], fun ([Handle]) -> {ok, Handle #handle.offset} end). - -flush(Ref) -> - with_flushed_handles([Ref], fun ([Handle]) -> {ok, [Handle]} end). - -copy(Src, Dest, Count) -> - with_flushed_handles( - [Src, Dest], - fun ([SHandle = #handle { is_read = true, hdl = SHdl, offset = SOffset }, - DHandle = #handle { is_write = true, hdl = DHdl, offset = DOffset }] - ) -> - case file:copy(SHdl, DHdl, Count) of - {ok, Count1} = Result1 -> - {Result1, - [SHandle #handle { offset = SOffset + Count1 }, - DHandle #handle { offset = DOffset + Count1 }]}; - Error -> - {Error, [SHandle, DHandle]} - end; - (_Handles) -> - {error, incorrect_handle_modes} - end). - -delete(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> - ok; - Handle = #handle { path = Path } -> - case close1(Ref, Handle #handle { is_dirty = false, - write_buffer = [] }, hard) of - ok -> file:delete(Path); - Error -> Error - end - end. - -clear(Ref) -> - with_handles( - [Ref], - fun ([#handle { at_eof = true, write_buffer_size = 0, offset = 0 }]) -> - ok; - ([Handle = #handle { write_buffer_size = Size, offset = Offset }]) -> - Handle1 = Handle #handle { write_buffer = [], - write_buffer_size = 0, - offset = Offset - Size }, - case maybe_seek(bof, Handle1) of - {{ok, 0}, Handle2 = #handle { hdl = Hdl }} -> - case file:truncate(Hdl) of - ok -> {ok, [Handle2 #handle { - at_eof = true, - trusted_offset = 0 }]}; - Error -> {Error, [Handle2]} - end; - Error -> - {Error, [Handle1]} - end - end). - -set_maximum_since_use(MaximumAge) -> - Now = now(), - case lists:foldl( - fun ({{Ref, fhc_handle}, - Handle = #handle { hdl = Hdl, last_used_at = Then }}, Rep) -> - Age = timer:now_diff(Now, Then), - case Hdl /= closed andalso Age >= MaximumAge of - true -> case close1(Ref, Handle, soft) of - {ok, Handle1} -> - put({Ref, fhc_handle}, Handle1), - false; - _ -> - Rep - end; - false -> Rep - end; - (_KeyValuePair, Rep) -> - Rep - end, true, get()) of - true -> with_age_tree( - fun (Tree) -> - case gb_trees:is_empty(Tree) of - true -> Tree; - false -> {Oldest, _Ref} = - gb_trees:smallest(Tree), - gen_server:cast( - ?SERVER, {update, self(), Oldest}) - end, - Tree - end), - ok; - false -> ok - end. - -decrement() -> - gen_server:cast(?SERVER, decrement). - -increment() -> - gen_server:cast(?SERVER, increment). - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -is_reader(Mode) -> lists:member(read, Mode). - -is_writer(Mode) -> lists:member(write, Mode). - -is_appender(Mode) -> lists:member(append, Mode). - -with_handles(Refs, Fun) -> - ResHandles = lists:foldl( - fun (Ref, {ok, HandlesAcc}) -> - case get_or_reopen(Ref) of - {ok, Handle} -> {ok, [Handle | HandlesAcc]}; - Error -> Error - end; - (_Ref, Error) -> - Error - end, {ok, []}, Refs), - case ResHandles of - {ok, Handles} -> - case erlang:apply(Fun, [lists:reverse(Handles)]) of - {Result, Handles1} when is_list(Handles1) -> - lists:zipwith(fun put_handle/2, Refs, Handles1), - Result; - Result -> - Result - end; - Error -> - Error - end. - -with_flushed_handles(Refs, Fun) -> - with_handles( - Refs, - fun (Handles) -> - case lists:foldl( - fun (Handle, {ok, HandlesAcc}) -> - {Res, Handle1} = write_buffer(Handle), - {Res, [Handle1 | HandlesAcc]}; - (Handle, {Error, HandlesAcc}) -> - {Error, [Handle | HandlesAcc]} - end, {ok, []}, Handles) of - {ok, Handles1} -> - erlang:apply(Fun, [lists:reverse(Handles1)]); - {Error, Handles1} -> - {Error, lists:reverse(Handles1)} - end - end). - -get_or_reopen(Ref) -> - case get({Ref, fhc_handle}) of - undefined -> - {error, not_open, Ref}; - #handle { hdl = closed, mode = Mode, options = Options, - offset = Offset, path = Path } -> - open1(Path, Mode, Options, Ref, Offset); - Handle -> - {ok, Handle} - end. - -get_or_create_age_tree() -> - case get(fhc_age_tree) of - undefined -> gb_trees:empty(); - AgeTree -> AgeTree - end. - -with_age_tree(Fun) -> - put(fhc_age_tree, Fun(get_or_create_age_tree())). - -put_handle(Ref, Handle = #handle { last_used_at = Then }) -> - Now = now(), - with_age_tree( - fun (Tree) -> gb_trees:insert(Now, Ref, gb_trees:delete(Then, Tree)) end), - put({Ref, fhc_handle}, Handle #handle { last_used_at = Now }). - -open1(Path, Mode, Options, Ref, Offset) -> - case file:open(Path, Mode) of - {ok, Hdl} -> - WriteBufferSize = - case proplists:get_value(write_buffer, Options, unbuffered) of - unbuffered -> 0; - infinity -> infinity; - N when is_integer(N) -> N - end, - Now = now(), - Handle = - #handle { hdl = Hdl, offset = 0, trusted_offset = 0, - write_buffer_size = 0, options = Options, - write_buffer_size_limit = WriteBufferSize, - write_buffer = [], at_eof = false, mode = Mode, - is_write = is_writer(Mode), is_read = is_reader(Mode), - path = Path, last_used_at = Now, - is_dirty = false }, - {{ok, Offset1}, Handle1} = maybe_seek(Offset, Handle), - Handle2 = Handle1 #handle { trusted_offset = Offset1 }, - put({Ref, fhc_handle}, Handle2), - with_age_tree(fun (Tree) -> - Tree1 = gb_trees:insert(Now, Ref, Tree), - {Oldest, _Ref} = gb_trees:smallest(Tree1), - gen_server:cast(?SERVER, - {open, self(), Oldest}), - Tree1 - end), - {ok, Handle2}; - {error, Reason} -> - {error, Reason} - end. - -close1(Ref, Handle, SoftOrHard) -> - case write_buffer(Handle) of - {ok, #handle { hdl = Hdl, path = Path, is_dirty = IsDirty, - is_read = IsReader, is_write = IsWriter, - last_used_at = Then } = Handle1 } -> - case Hdl of - closed -> ok; - _ -> ok = case IsDirty of - true -> file:sync(Hdl); - false -> ok - end, - ok = file:close(Hdl), - with_age_tree( - fun (Tree) -> - Tree1 = gb_trees:delete(Then, Tree), - Oldest = - case gb_trees:is_empty(Tree1) of - true -> - undefined; - false -> - {Oldest1, _Ref} = - gb_trees:smallest(Tree1), - Oldest1 - end, - gen_server:cast( - ?SERVER, {close, self(), Oldest}), - Tree1 - end) - end, - case SoftOrHard of - hard -> #file { reader_count = RCount, - has_writer = HasWriter } = File = - get({Path, fhc_file}), - RCount1 = case IsReader of - true -> RCount - 1; - false -> RCount - end, - HasWriter1 = HasWriter andalso not IsWriter, - case RCount1 =:= 0 andalso not HasWriter1 of - true -> erase({Path, fhc_file}); - false -> put({Path, fhc_file}, - File #file { reader_count = RCount1, - has_writer = HasWriter1 }) - end, - ok; - soft -> {ok, Handle1 #handle { hdl = closed }} - end; - {Error, Handle1} -> - put_handle(Ref, Handle1), - Error - end. - -maybe_seek(NewOffset, Handle = #handle { hdl = Hdl, at_eof = AtEoF, - offset = Offset }) -> - {AtEoF1, NeedsSeek} = needs_seek(AtEoF, Offset, NewOffset), - case (case NeedsSeek of - true -> file:position(Hdl, NewOffset); - false -> {ok, Offset} - end) of - {ok, Offset1} = Result -> - {Result, Handle #handle { at_eof = AtEoF1, offset = Offset1 }}; - {error, _} = Error -> - {Error, Handle} - end. - -needs_seek( AtEoF, _CurOffset, cur ) -> {AtEoF, false}; -needs_seek( AtEoF, _CurOffset, {cur, 0}) -> {AtEoF, false}; -needs_seek( true, _CurOffset, eof ) -> {true , false}; -needs_seek( true, _CurOffset, {eof, 0}) -> {true , false}; -needs_seek( false, _CurOffset, eof ) -> {true , true }; -needs_seek( false, _CurOffset, {eof, 0}) -> {true , true }; -needs_seek( AtEoF, 0, bof ) -> {AtEoF, false}; -needs_seek( AtEoF, 0, {bof, 0}) -> {AtEoF, false}; -needs_seek( AtEoF, CurOffset, CurOffset) -> {AtEoF, false}; -needs_seek( true, CurOffset, {bof, DesiredOffset}) - when DesiredOffset >= CurOffset -> - {true, true}; -needs_seek( true, _CurOffset, {cur, DesiredOffset}) - when DesiredOffset > 0 -> - {true, true}; -needs_seek( true, CurOffset, DesiredOffset) %% same as {bof, DO} - when is_integer(DesiredOffset) andalso DesiredOffset >= CurOffset -> - {true, true}; -%% because we can't really track size, we could well end up at EoF and not know -needs_seek(_AtEoF, _CurOffset, _DesiredOffset) -> - {false, true}. - -write_buffer(Handle = #handle { write_buffer = [] }) -> - {ok, Handle}; -write_buffer(Handle = #handle { hdl = Hdl, offset = Offset, - write_buffer = WriteBuffer, - write_buffer_size = DataSize, - at_eof = true }) -> - case file:write(Hdl, lists:reverse(WriteBuffer)) of - ok -> - Offset1 = Offset + DataSize, - {ok, Handle #handle { offset = Offset1, write_buffer = [], - write_buffer_size = 0, is_dirty = true }}; - {error, _} = Error -> - {Error, Handle} - end. - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - Limit = case application:get_env(file_handles_high_watermark) of - {ok, Watermark} when (is_integer(Watermark) andalso - Watermark > 0) -> - Watermark; - _ -> - ulimit() - end, - error_logger:info_msg("Limiting to approx ~p file handles~n", [Limit]), - {ok, #fhc_state { elders = dict:new(), limit = Limit, count = 0}}. - -handle_call(_Msg, _From, State) -> - {reply, message_not_understood, State}. - -handle_cast({open, Pid, EldestUnusedSince}, State = - #fhc_state { elders = Elders, count = Count }) -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - {noreply, maybe_reduce(State #fhc_state { elders = Elders1, - count = Count + 1 })}; - -handle_cast({update, Pid, EldestUnusedSince}, State = - #fhc_state { elders = Elders }) -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - %% don't call maybe_reduce from here otherwise we can create a - %% storm of messages - {noreply, State #fhc_state { elders = Elders1 }}; - -handle_cast({close, Pid, EldestUnusedSince}, State = - #fhc_state { elders = Elders, count = Count }) -> - Elders1 = case EldestUnusedSince of - undefined -> dict:erase(Pid, Elders); - _ -> dict:store(Pid, EldestUnusedSince, Elders) - end, - {noreply, State #fhc_state { elders = Elders1, count = Count - 1 }}; - -handle_cast(increment, State = #fhc_state { count = Count }) -> - {noreply, maybe_reduce(State #fhc_state { count = Count + 1 })}; - -handle_cast(decrement, State = #fhc_state { count = Count }) -> - {noreply, State #fhc_state { count = Count - 1 }}; - -handle_cast(check_counts, State) -> - {noreply, maybe_reduce(State)}. - -handle_info(_Msg, State) -> - {noreply, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% server helpers -%%---------------------------------------------------------------------------- - -maybe_reduce(State = #fhc_state { limit = Limit, count = Count, - elders = Elders }) - when Limit /= infinity andalso Count >= Limit -> - Now = now(), - {Pids, Sum, ClientCount} = - dict:fold(fun (_Pid, undefined, Accs) -> - Accs; - (Pid, Eldest, {PidsAcc, SumAcc, CountAcc}) -> - {[Pid|PidsAcc], SumAcc + timer:now_diff(Now, Eldest), - CountAcc + 1} - end, {[], 0, 0}, Elders), - case Pids of - [] -> ok; - _ -> AverageAge = Sum / ClientCount, - lists:foreach(fun (Pid) -> Pid ! {?MODULE, - maximum_eldest_since_use, - AverageAge} - end, Pids) - end, - {ok, _TRef} = timer:apply_after(?FILE_HANDLES_CHECK_INTERVAL, gen_server, - cast, [?SERVER, check_counts]), - State; -maybe_reduce(State) -> - State. - -%% Googling around suggests that Windows has a limit somewhere around -%% 16M, eg -%% http://blogs.technet.com/markrussinovich/archive/2009/09/29/3283844.aspx -%% For everything else, assume ulimit exists. Further googling -%% suggests that BSDs (incl OS X), solaris and linux all agree that -%% ulimit -n is file handles -ulimit() -> - case os:type() of - {win32, _OsName} -> - ?FILE_HANDLES_LIMIT_WINDOWS; - {unix, _OsName} -> - %% Under Linux, Solaris and FreeBSD, ulimit is a shell - %% builtin, not a command. In OS X, it's a command. - %% Fortunately, os:cmd invokes the cmd in a shell env, so - %% we're safe in all cases. - case os:cmd("ulimit -n") of - "unlimited" -> - infinity; - String = [C|_] when $0 =< C andalso C =< $9 -> - Num = list_to_integer( - lists:takewhile( - fun (D) -> $0 =< D andalso D =< $9 end, String)) - - ?RESERVED_FOR_OTHERS, - lists:max([1, Num]); - _ -> - %% probably a variant of - %% "/bin/sh: line 1: ulimit: command not found\n" - ?FILE_HANDLES_LIMIT_OTHER - ?RESERVED_FOR_OTHERS - end; - _ -> - ?FILE_HANDLES_LIMIT_OTHER - ?RESERVED_FOR_OTHERS - end. diff --git a/src/gen_server2.erl b/src/gen_server2.erl deleted file mode 100644 index c4806151..00000000 --- a/src/gen_server2.erl +++ /dev/null @@ -1,1144 +0,0 @@ -%% This file is a copy of gen_server.erl from the R13B-1 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is gen_server2 -%% -%% 2) more efficient handling of selective receives in callbacks -%% gen_server2 processes drain their message queue into an internal -%% buffer before invoking any callback module functions. Messages are -%% dequeued from the buffer for processing. Thus the effective message -%% queue of a gen_server2 process is the concatenation of the internal -%% buffer and the real message queue. -%% As a result of the draining, any selective receive invoked inside a -%% callback is less likely to have to scan a large message queue. -%% -%% 3) gen_server2:cast is guaranteed to be order-preserving -%% The original code could reorder messages when communicating with a -%% process on a remote node that was not currently connected. -%% -%% 4) The new functions gen_server2:pcall/3, pcall/4, and pcast/3 -%% allow callers to attach priorities to requests. Requests with -%% higher priorities are processed before requests with lower -%% priorities. The default priority is 0. -%% -%% 5) The callback module can optionally implement -%% handle_pre_hibernate/1 and handle_post_hibernate/1. These will be -%% called immediately prior to and post hibernation, respectively. If -%% handle_pre_hibernate returns {hibernate, NewState} then the process -%% will hibernate. If handle_pre_hibernate returns {insomniate, -%% NewState} then the process will go around again, trying to receive -%% for up to the current timeout value before attempting to hibernate -%% again. If the module does not implement handle_pre_hibernate/1 then -%% the default action is to hibernate. -%% -%% 6) init can return a 4th arg, {backoff, InitialTimeout, -%% MinimumTimeout, DesiredHibernatePeriod} (all in -%% milliseconds). Then, on all callbacks which can return a timeout -%% (including init), timeout can be 'hibernate'. When this is the -%% case, the current timeout value will be used (initially, the -%% InitialTimeout supplied from init). After this timeout has -%% occurred, hibernation will occur as normal. Upon awaking, a new -%% current timeout value will be calculated. -%% -%% The purpose is that the gen_server2 takes care of adjusting the -%% current timeout value such that the process will increase the -%% timeout value repeatedly if it is unable to sleep for the -%% DesiredHibernatePeriod. If it is able to sleep for the -%% DesiredHibernatePeriod it will decrease the current timeout down to -%% the MinimumTimeout, so that the process is put to sleep sooner (and -%% hopefully stays asleep for longer). In short, should a process -%% using this receive a burst of messages, it should not hibernate -%% between those messages, but as the messages become less frequent, -%% the process will not only hibernate, it will do so sooner after -%% each message. -%% -%% When using this backoff mechanism, normal timeout values (i.e. not -%% 'hibernate') can still be used, and if they are used then the -%% handle_info(timeout, State) will be called as normal. In this case, -%% returning 'hibernate' from handle_info(timeout, State) will not -%% hibernate the process immediately, as it would if backoff wasn't -%% being used. Instead it'll wait for the current timeout as described -%% above. - -%% All modifications are (C) 2009 LShift Ltd. - -%% ``The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved via the world wide web at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. -%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings -%% AB. All Rights Reserved.'' -%% -%% $Id$ -%% --module(gen_server2). - -%%% --------------------------------------------------- -%%% -%%% The idea behind THIS server is that the user module -%%% provides (different) functions to handle different -%%% kind of inputs. -%%% If the Parent process terminates the Module:terminate/2 -%%% function is called. -%%% -%%% The user module should export: -%%% -%%% init(Args) -%%% ==> {ok, State} -%%% {ok, State, Timeout} -%%% {ok, State, Timeout, Backoff} -%%% ignore -%%% {stop, Reason} -%%% -%%% handle_call(Msg, {From, Tag}, State) -%%% -%%% ==> {reply, Reply, State} -%%% {reply, Reply, State, Timeout} -%%% {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, Reply, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_cast(Msg, State) -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_info(Info, State) Info is e.g. {'EXIT', P, R}, {nodedown, N}, ... -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% terminate(Reason, State) Let the user module clean up -%%% always called when server terminates -%%% -%%% ==> ok -%%% -%%% handle_pre_hibernate(State) -%%% -%%% ==> {hibernate, State} -%%% {insomniate, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% handle_post_hibernate(State) -%%% -%%% ==> {noreply, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% The work flow (of the server) can be described as follows: -%%% -%%% User module Generic -%%% ----------- ------- -%%% start -----> start -%%% init <----- . -%%% -%%% loop -%%% handle_call <----- . -%%% -----> reply -%%% -%%% handle_cast <----- . -%%% -%%% handle_info <----- . -%%% -%%% terminate <----- . -%%% -%%% -----> reply -%%% -%%% -%%% --------------------------------------------------- - -%% API --export([start/3, start/4, - start_link/3, start_link/4, - call/2, call/3, pcall/3, pcall/4, - cast/2, pcast/3, reply/2, - abcast/2, abcast/3, - multi_call/2, multi_call/3, multi_call/4, - enter_loop/3, enter_loop/4, enter_loop/5, wake_hib/7]). - --export([behaviour_info/1]). - -%% System exports --export([system_continue/3, - system_terminate/4, - system_code_change/4, - format_status/2]). - -%% Internal exports --export([init_it/6, print_event/3]). - --import(error_logger, [format/2]). - -%%%========================================================================= -%%% Specs. These exist only to shut up dialyzer's warnings -%%%========================================================================= - --ifdef(use_specs). - --spec(handle_common_termination/6 :: - (any(), any(), any(), atom(), any(), any()) -> no_return()). - --spec(hibernate/7 :: - (pid(), any(), any(), atom(), any(), queue(), any()) -> no_return()). - --endif. - -%%%========================================================================= -%%% API -%%%========================================================================= - -behaviour_info(callbacks) -> - [{init,1},{handle_call,3},{handle_cast,2},{handle_info,2}, - {terminate,2},{code_change,3}]; -behaviour_info(_Other) -> - undefined. - -%%% ----------------------------------------------------------------- -%%% Starts a generic server. -%%% start(Mod, Args, Options) -%%% start(Name, Mod, Args, Options) -%%% start_link(Mod, Args, Options) -%%% start_link(Name, Mod, Args, Options) where: -%%% Name ::= {local, atom()} | {global, atom()} -%%% Mod ::= atom(), callback module implementing the 'real' server -%%% Args ::= term(), init arguments (to Mod:init/1) -%%% Options ::= [{timeout, Timeout} | {debug, [Flag]}] -%%% Flag ::= trace | log | {logfile, File} | statistics | debug -%%% (debug == log && statistics) -%%% Returns: {ok, Pid} | -%%% {error, {already_started, Pid}} | -%%% {error, Reason} -%%% ----------------------------------------------------------------- -start(Mod, Args, Options) -> - gen:start(?MODULE, nolink, Mod, Args, Options). - -start(Name, Mod, Args, Options) -> - gen:start(?MODULE, nolink, Name, Mod, Args, Options). - -start_link(Mod, Args, Options) -> - gen:start(?MODULE, link, Mod, Args, Options). - -start_link(Name, Mod, Args, Options) -> - gen:start(?MODULE, link, Name, Mod, Args, Options). - - -%% ----------------------------------------------------------------- -%% Make a call to a generic server. -%% If the server is located at another node, that node will -%% be monitored. -%% If the client is trapping exits and is linked server termination -%% is handled here (? Shall we do that here (or rely on timeouts) ?). -%% ----------------------------------------------------------------- -call(Name, Request) -> - case catch gen:call(Name, '$gen_call', Request) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request]}}) - end. - -call(Name, Request, Timeout) -> - case catch gen:call(Name, '$gen_call', Request, Timeout) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request, Timeout]}}) - end. - -pcall(Name, Priority, Request) -> - case catch gen:call(Name, '$gen_pcall', {Priority, Request}) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, pcall, [Name, Priority, Request]}}) - end. - -pcall(Name, Priority, Request, Timeout) -> - case catch gen:call(Name, '$gen_pcall', {Priority, Request}, Timeout) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, pcall, [Name, Priority, Request, Timeout]}}) - end. - -%% ----------------------------------------------------------------- -%% Make a cast to a generic server. -%% ----------------------------------------------------------------- -cast({global,Name}, Request) -> - catch global:send(Name, cast_msg(Request)), - ok; -cast({Name,Node}=Dest, Request) when is_atom(Name), is_atom(Node) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_atom(Dest) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_pid(Dest) -> - do_cast(Dest, Request). - -do_cast(Dest, Request) -> - do_send(Dest, cast_msg(Request)), - ok. - -cast_msg(Request) -> {'$gen_cast',Request}. - -pcast({global,Name}, Priority, Request) -> - catch global:send(Name, cast_msg(Priority, Request)), - ok; -pcast({Name,Node}=Dest, Priority, Request) when is_atom(Name), is_atom(Node) -> - do_cast(Dest, Priority, Request); -pcast(Dest, Priority, Request) when is_atom(Dest) -> - do_cast(Dest, Priority, Request); -pcast(Dest, Priority, Request) when is_pid(Dest) -> - do_cast(Dest, Priority, Request). - -do_cast(Dest, Priority, Request) -> - do_send(Dest, cast_msg(Priority, Request)), - ok. - -cast_msg(Priority, Request) -> {'$gen_pcast', {Priority, Request}}. - -%% ----------------------------------------------------------------- -%% Send a reply to the client. -%% ----------------------------------------------------------------- -reply({To, Tag}, Reply) -> - catch To ! {Tag, Reply}. - -%% ----------------------------------------------------------------- -%% Asyncronous broadcast, returns nothing, it's just send'n prey -%%----------------------------------------------------------------- -abcast(Name, Request) when is_atom(Name) -> - do_abcast([node() | nodes()], Name, cast_msg(Request)). - -abcast(Nodes, Name, Request) when is_list(Nodes), is_atom(Name) -> - do_abcast(Nodes, Name, cast_msg(Request)). - -do_abcast([Node|Nodes], Name, Msg) when is_atom(Node) -> - do_send({Name,Node},Msg), - do_abcast(Nodes, Name, Msg); -do_abcast([], _,_) -> abcast. - -%%% ----------------------------------------------------------------- -%%% Make a call to servers at several nodes. -%%% Returns: {[Replies],[BadNodes]} -%%% A Timeout can be given -%%% -%%% A middleman process is used in case late answers arrives after -%%% the timeout. If they would be allowed to glog the callers message -%%% queue, it would probably become confused. Late answers will -%%% now arrive to the terminated middleman and so be discarded. -%%% ----------------------------------------------------------------- -multi_call(Name, Req) - when is_atom(Name) -> - do_multi_call([node() | nodes()], Name, Req, infinity). - -multi_call(Nodes, Name, Req) - when is_list(Nodes), is_atom(Name) -> - do_multi_call(Nodes, Name, Req, infinity). - -multi_call(Nodes, Name, Req, infinity) -> - do_multi_call(Nodes, Name, Req, infinity); -multi_call(Nodes, Name, Req, Timeout) - when is_list(Nodes), is_atom(Name), is_integer(Timeout), Timeout >= 0 -> - do_multi_call(Nodes, Name, Req, Timeout). - - -%%----------------------------------------------------------------- -%% enter_loop(Mod, Options, State, , , ) ->_ -%% -%% Description: Makes an existing process into a gen_server. -%% The calling process will enter the gen_server receive -%% loop and become a gen_server process. -%% The process *must* have been started using one of the -%% start functions in proc_lib, see proc_lib(3). -%% The user is responsible for any initialization of the -%% process, including registering a name for it. -%%----------------------------------------------------------------- -enter_loop(Mod, Options, State) -> - enter_loop(Mod, Options, State, self(), infinity, undefined). - -enter_loop(Mod, Options, State, Backoff = {backoff, _, _ , _}) -> - enter_loop(Mod, Options, State, self(), infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName = {_, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, undefined); - -enter_loop(Mod, Options, State, Timeout) -> - enter_loop(Mod, Options, State, self(), Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Backoff = {backoff, _, _, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName, Timeout) -> - enter_loop(Mod, Options, State, ServerName, Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Timeout, Backoff) -> - Name = get_proc_name(ServerName), - Parent = get_parent(), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - Backoff1 = extend_backoff(Backoff), - loop(Parent, Name, State, Mod, Timeout, Backoff1, Queue, Debug). - -%%%======================================================================== -%%% Gen-callback functions -%%%======================================================================== - -%%% --------------------------------------------------- -%%% Initiate the new process. -%%% Register the name using the Rfunc function -%%% Calls the Mod:init/Args function. -%%% Finally an acknowledge is sent to Parent and the main -%%% loop is entered. -%%% --------------------------------------------------- -init_it(Starter, self, Name, Mod, Args, Options) -> - init_it(Starter, self(), Name, Mod, Args, Options); -init_it(Starter, Parent, Name0, Mod, Args, Options) -> - Name = name(Name0), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - case catch Mod:init(Args) of - {ok, State} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(Parent, Name, State, Mod, infinity, undefined, Queue, Debug); - {ok, State, Timeout} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(Parent, Name, State, Mod, Timeout, undefined, Queue, Debug); - {ok, State, Timeout, Backoff = {backoff, _, _, _}} -> - Backoff1 = extend_backoff(Backoff), - proc_lib:init_ack(Starter, {ok, self()}), - loop(Parent, Name, State, Mod, Timeout, Backoff1, Queue, Debug); - {stop, Reason} -> - %% For consistency, we must make sure that the - %% registered name (if any) is unregistered before - %% the parent process is notified about the failure. - %% (Otherwise, the parent process could get - %% an 'already_started' error if it immediately - %% tried starting the process again.) - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - ignore -> - unregister_name(Name0), - proc_lib:init_ack(Starter, ignore), - exit(normal); - {'EXIT', Reason} -> - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - Else -> - Error = {bad_return_value, Else}, - proc_lib:init_ack(Starter, {error, Error}), - exit(Error) - end. - -name({local,Name}) -> Name; -name({global,Name}) -> Name; -%% name(Pid) when is_pid(Pid) -> Pid; -%% when R11 goes away, drop the line beneath and uncomment the line above -name(Name) -> Name. - -unregister_name({local,Name}) -> - _ = (catch unregister(Name)); -unregister_name({global,Name}) -> - _ = global:unregister_name(Name); -unregister_name(Pid) when is_pid(Pid) -> - Pid; -% Under R12 let's just ignore it, as we have a single term as Name. -% On R13 it will never get here, as we get tuple with 'local/global' atom. -unregister_name(_Name) -> ok. - -extend_backoff(undefined) -> - undefined; -extend_backoff({backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod}) -> - {backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod, now()}. - -%%%======================================================================== -%%% Internal functions -%%%======================================================================== -%%% --------------------------------------------------- -%%% The MAIN loop. -%%% --------------------------------------------------- -loop(Parent, Name, State, Mod, hibernate, undefined, Queue, Debug) -> - pre_hibernate(Parent, Name, State, Mod, undefined, Queue, Debug); -loop(Parent, Name, State, Mod, Time, TimeoutState, Queue, Debug) -> - process_next_msg(Parent, Name, State, Mod, Time, TimeoutState, - drain(Queue), Debug). - -drain(Queue) -> - receive - Input -> drain(in(Input, Queue)) - after 0 -> Queue - end. - -process_next_msg(Parent, Name, State, Mod, Time, TimeoutState, Queue, Debug) -> - case priority_queue:out(Queue) of - {{value, Msg}, Queue1} -> - process_msg(Parent, Name, State, Mod, - Time, TimeoutState, Queue1, Debug, Msg); - {empty, Queue1} -> - {Time1, HibOnTimeout} - = case {Time, TimeoutState} of - {hibernate, {backoff, Current, _Min, _Desired, _RSt}} -> - {Current, true}; - {hibernate, _} -> - %% wake_hib/7 will set Time to hibernate. If - %% we were woken and didn't receive a msg - %% then we will get here and need a sensible - %% value for Time1, otherwise we crash. - %% R13B1 always waits infinitely when waking - %% from hibernation, so that's what we do - %% here too. - {infinity, false}; - _ -> {Time, false} - end, - receive - Input -> - %% Time could be 'hibernate' here, so *don't* call loop - process_next_msg( - Parent, Name, State, Mod, Time, TimeoutState, - drain(in(Input, Queue1)), Debug) - after Time1 -> - case HibOnTimeout of - true -> - pre_hibernate( - Parent, Name, State, Mod, TimeoutState, Queue1, - Debug); - false -> - process_msg( - Parent, Name, State, Mod, Time, TimeoutState, - Queue1, Debug, timeout) - end - end - end. - -wake_hib(Parent, Name, State, Mod, TS, Queue, Debug) -> - TimeoutState1 = case TS of - undefined -> - undefined; - {SleptAt, TimeoutState} -> - adjust_timeout_state(SleptAt, now(), TimeoutState) - end, - post_hibernate(Parent, Name, State, Mod, TimeoutState1, - drain(Queue), Debug). - -hibernate(Parent, Name, State, Mod, TimeoutState, Queue, Debug) -> - TS = case TimeoutState of - undefined -> undefined; - {backoff, _, _, _, _} -> {now(), TimeoutState} - end, - proc_lib:hibernate(?MODULE, wake_hib, [Parent, Name, State, Mod, - TS, Queue, Debug]). - -pre_hibernate(Parent, Name, State, Mod, TimeoutState, Queue, Debug) -> - case erlang:function_exported(Mod, handle_pre_hibernate, 1) of - true -> - case catch Mod:handle_pre_hibernate(State) of - {hibernate, NState} -> - hibernate(Parent, Name, NState, Mod, TimeoutState, Queue, - Debug); - {insomniate, NState} -> - process_next_msg(Parent, Name, NState, Mod, hibernate, - TimeoutState, Queue, Debug); - Reply -> - handle_common_termination(Reply, Name, pre_hibernate, - Mod, State, Debug) - end; - false -> - hibernate(Parent, Name, State, Mod, TimeoutState, Queue, Debug) - end. - -post_hibernate(Parent, Name, State, Mod, TimeoutState, Queue, Debug) -> - case erlang:function_exported(Mod, handle_post_hibernate, 1) of - true -> - case catch Mod:handle_post_hibernate(State) of - {noreply, NState} -> - process_next_msg(Parent, Name, NState, Mod, infinity, - TimeoutState, Queue, Debug); - {noreply, NState, Time} -> - process_next_msg(Parent, Name, NState, Mod, Time, - TimeoutState, Queue, Debug); - Reply -> - handle_common_termination(Reply, Name, post_hibernate, - Mod, State, Debug) - end; - false -> - %% use hibernate here, not infinity. This matches - %% R13B. The key is that we should be able to get through - %% to process_msg calling sys:handle_system_msg with Time - %% still set to hibernate, iff that msg is the very msg - %% that woke us up (or the first msg we receive after - %% waking up). - process_next_msg(Parent, Name, State, Mod, hibernate, - TimeoutState, Queue, Debug) - end. - -adjust_timeout_state(SleptAt, AwokeAt, {backoff, CurrentTO, MinimumTO, - DesiredHibPeriod, RandomState}) -> - NapLengthMicros = timer:now_diff(AwokeAt, SleptAt), - CurrentMicros = CurrentTO * 1000, - MinimumMicros = MinimumTO * 1000, - DesiredHibMicros = DesiredHibPeriod * 1000, - GapBetweenMessagesMicros = NapLengthMicros + CurrentMicros, - Base = - %% If enough time has passed between the last two messages then we - %% should consider sleeping sooner. Otherwise stay awake longer. - case GapBetweenMessagesMicros > (MinimumMicros + DesiredHibMicros) of - true -> lists:max([MinimumTO, CurrentTO div 2]); - false -> CurrentTO - end, - {Extra, RandomState1} = random:uniform_s(Base, RandomState), - CurrentTO1 = Base + Extra, - {backoff, CurrentTO1, MinimumTO, DesiredHibPeriod, RandomState1}. - -in({'$gen_pcast', {Priority, Msg}}, Queue) -> - priority_queue:in({'$gen_cast', Msg}, Priority, Queue); -in({'$gen_pcall', From, {Priority, Msg}}, Queue) -> - priority_queue:in({'$gen_call', From, Msg}, Priority, Queue); -in(Input, Queue) -> - priority_queue:in(Input, Queue). - -process_msg(Parent, Name, State, Mod, Time, TimeoutState, Queue, - Debug, Msg) -> - case Msg of - {system, From, Req} -> - sys:handle_system_msg - (Req, From, Parent, ?MODULE, Debug, - [Name, State, Mod, Time, TimeoutState, Queue]); - %% gen_server puts Hib on the end as the 7th arg, but that - %% version of the function seems not to be documented so - %% leaving out for now. - {'EXIT', Parent, Reason} -> - terminate(Reason, Name, Msg, Mod, State, Debug); - _Msg when Debug =:= [] -> - handle_msg(Msg, Parent, Name, State, Mod, TimeoutState, Queue); - _Msg -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, - Name, {in, Msg}), - handle_msg(Msg, Parent, Name, State, Mod, TimeoutState, Queue, - Debug1) - end. - -%%% --------------------------------------------------- -%%% Send/recive functions -%%% --------------------------------------------------- -do_send(Dest, Msg) -> - catch erlang:send(Dest, Msg). - -do_multi_call(Nodes, Name, Req, infinity) -> - Tag = make_ref(), - Monitors = send_nodes(Nodes, Name, Tag, Req), - rec_nodes(Tag, Monitors, Name, undefined); -do_multi_call(Nodes, Name, Req, Timeout) -> - Tag = make_ref(), - Caller = self(), - Receiver = - spawn( - fun() -> - %% Middleman process. Should be unsensitive to regular - %% exit signals. The sychronization is needed in case - %% the receiver would exit before the caller started - %% the monitor. - process_flag(trap_exit, true), - Mref = erlang:monitor(process, Caller), - receive - {Caller,Tag} -> - Monitors = send_nodes(Nodes, Name, Tag, Req), - TimerId = erlang:start_timer(Timeout, self(), ok), - Result = rec_nodes(Tag, Monitors, Name, TimerId), - exit({self(),Tag,Result}); - {'DOWN',Mref,_,_,_} -> - %% Caller died before sending us the go-ahead. - %% Give up silently. - exit(normal) - end - end), - Mref = erlang:monitor(process, Receiver), - Receiver ! {self(),Tag}, - receive - {'DOWN',Mref,_,_,{Receiver,Tag,Result}} -> - Result; - {'DOWN',Mref,_,_,Reason} -> - %% The middleman code failed. Or someone did - %% exit(_, kill) on the middleman process => Reason==killed - exit(Reason) - end. - -send_nodes(Nodes, Name, Tag, Req) -> - send_nodes(Nodes, Name, Tag, Req, []). - -send_nodes([Node|Tail], Name, Tag, Req, Monitors) - when is_atom(Node) -> - Monitor = start_monitor(Node, Name), - %% Handle non-existing names in rec_nodes. - catch {Name, Node} ! {'$gen_call', {self(), {Tag, Node}}, Req}, - send_nodes(Tail, Name, Tag, Req, [Monitor | Monitors]); -send_nodes([_Node|Tail], Name, Tag, Req, Monitors) -> - %% Skip non-atom Node - send_nodes(Tail, Name, Tag, Req, Monitors); -send_nodes([], _Name, _Tag, _Req, Monitors) -> - Monitors. - -%% Against old nodes: -%% If no reply has been delivered within 2 secs. (per node) check that -%% the server really exists and wait for ever for the answer. -%% -%% Against contemporary nodes: -%% Wait for reply, server 'DOWN', or timeout from TimerId. - -rec_nodes(Tag, Nodes, Name, TimerId) -> - rec_nodes(Tag, Nodes, Name, [], [], 2000, TimerId). - -rec_nodes(Tag, [{N,R}|Tail], Name, Badnodes, Replies, Time, TimerId ) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, Time, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], Time, TimerId); - {timeout, TimerId, _} -> - unmonitor(R), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes(Tag, [N|Tail], Name, Badnodes, Replies, Time, TimerId) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, 2000, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], 2000, TimerId); - {timeout, TimerId, _} -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N | Badnodes], Replies) - after Time -> - case rpc:call(N, erlang, whereis, [Name]) of - Pid when is_pid(Pid) -> % It exists try again. - rec_nodes(Tag, [N|Tail], Name, Badnodes, - Replies, infinity, TimerId); - _ -> % badnode - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], - Replies, 2000, TimerId) - end - end; -rec_nodes(_, [], _, Badnodes, Replies, _, TimerId) -> - case catch erlang:cancel_timer(TimerId) of - false -> % It has already sent it's message - receive - {timeout, TimerId, _} -> ok - after 0 -> - ok - end; - _ -> % Timer was cancelled, or TimerId was 'undefined' - ok - end, - {Replies, Badnodes}. - -%% Collect all replies that already have arrived -rec_nodes_rest(Tag, [{N,R}|Tail], Name, Badnodes, Replies) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(Tag, [N|Tail], Name, Badnodes, Replies) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(_Tag, [], _Name, Badnodes, Replies) -> - {Replies, Badnodes}. - - -%%% --------------------------------------------------- -%%% Monitor functions -%%% --------------------------------------------------- - -start_monitor(Node, Name) when is_atom(Node), is_atom(Name) -> - if node() =:= nonode@nohost, Node =/= nonode@nohost -> - Ref = make_ref(), - self() ! {'DOWN', Ref, process, {Name, Node}, noconnection}, - {Node, Ref}; - true -> - case catch erlang:monitor(process, {Name, Node}) of - {'EXIT', _} -> - %% Remote node is R6 - monitor_node(Node, true), - Node; - Ref when is_reference(Ref) -> - {Node, Ref} - end - end. - -%% Cancels a monitor started with Ref=erlang:monitor(_, _). -unmonitor(Ref) when is_reference(Ref) -> - erlang:demonitor(Ref), - receive - {'DOWN', Ref, _, _, _} -> - true - after 0 -> - true - end. - -%%% --------------------------------------------------- -%%% Message handling functions -%%% --------------------------------------------------- - -dispatch({'$gen_cast', Msg}, Mod, State) -> - Mod:handle_cast(Msg, State); -dispatch(Info, Mod, State) -> - Mod:handle_info(Info, State). - -handle_msg({'$gen_call', From, Msg}, - Parent, Name, State, Mod, TimeoutState, Queue) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - reply(From, Reply), - loop(Parent, Name, NState, Mod, infinity, TimeoutState, Queue, []); - {reply, Reply, NState, Time1} -> - reply(From, Reply), - loop(Parent, Name, NState, Mod, Time1, TimeoutState, Queue, []); - {noreply, NState} -> - loop(Parent, Name, NState, Mod, infinity, TimeoutState, Queue, []); - {noreply, NState, Time1} -> - loop(Parent, Name, NState, Mod, Time1, TimeoutState, Queue, []); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Name, Msg, Mod, NState, [])), - reply(From, Reply), - exit(R); - Other -> handle_common_reply(Other, Parent, Name, Msg, Mod, State, - TimeoutState, Queue) - end; -handle_msg(Msg, - Parent, Name, State, Mod, TimeoutState, Queue) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, Parent, Name, Msg, Mod, State, - TimeoutState, Queue). - -handle_msg({'$gen_call', From, Msg}, - Parent, Name, State, Mod, TimeoutState, Queue, Debug) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - Debug1 = reply(Name, From, Reply, NState, Debug), - loop(Parent, Name, NState, Mod, infinity, TimeoutState, Queue, - Debug1); - {reply, Reply, NState, Time1} -> - Debug1 = reply(Name, From, Reply, NState, Debug), - loop(Parent, Name, NState, Mod, Time1, TimeoutState, Queue, Debug1); - {noreply, NState} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(Parent, Name, NState, Mod, infinity, TimeoutState, Queue, - Debug1); - {noreply, NState, Time1} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(Parent, Name, NState, Mod, Time1, TimeoutState, Queue, Debug1); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Name, Msg, Mod, NState, Debug)), - reply(Name, From, Reply, NState, Debug), - exit(R); - Other -> - handle_common_reply(Other, Parent, Name, Msg, Mod, State, - TimeoutState, Queue, Debug) - end; -handle_msg(Msg, - Parent, Name, State, Mod, TimeoutState, Queue, Debug) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, Parent, Name, Msg, Mod, State, - TimeoutState, Queue, Debug). - -handle_common_reply(Reply, Parent, Name, Msg, Mod, State, - TimeoutState, Queue) -> - case Reply of - {noreply, NState} -> - loop(Parent, Name, NState, Mod, infinity, TimeoutState, Queue, []); - {noreply, NState, Time1} -> - loop(Parent, Name, NState, Mod, Time1, TimeoutState, Queue, []); - _ -> - handle_common_termination(Reply, Name, Msg, Mod, State, []) - end. - -handle_common_reply(Reply, Parent, Name, Msg, Mod, State, TimeoutState, Queue, - Debug) -> - case Reply of - {noreply, NState} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(Parent, Name, NState, Mod, infinity, TimeoutState, Queue, - Debug1); - {noreply, NState, Time1} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(Parent, Name, NState, Mod, Time1, TimeoutState, Queue, Debug1); - _ -> - handle_common_termination(Reply, Name, Msg, Mod, State, Debug) - end. - -handle_common_termination(Reply, Name, Msg, Mod, State, Debug) -> - case Reply of - {stop, Reason, NState} -> - terminate(Reason, Name, Msg, Mod, NState, Debug); - {'EXIT', What} -> - terminate(What, Name, Msg, Mod, State, Debug); - _ -> - terminate({bad_return_value, Reply}, Name, Msg, Mod, State, Debug) - end. - -reply(Name, {To, Tag}, Reply, State, Debug) -> - reply({To, Tag}, Reply), - sys:handle_debug(Debug, {?MODULE, print_event}, Name, - {out, Reply, To, State} ). - - -%%----------------------------------------------------------------- -%% Callback functions for system messages handling. -%%----------------------------------------------------------------- -system_continue(Parent, Debug, [Name, State, Mod, Time, TimeoutState, Queue]) -> - loop(Parent, Name, State, Mod, Time, TimeoutState, Queue, Debug). - --ifdef(use_specs). --spec system_terminate(_, _, _, [_]) -> no_return(). --endif. - -system_terminate(Reason, _Parent, Debug, [Name, State, Mod, _Time, - _TimeoutState, _Queue]) -> - terminate(Reason, Name, [], Mod, State, Debug). - -system_code_change([Name, State, Mod, Time, TimeoutState, Queue], _Module, - OldVsn, Extra) -> - case catch Mod:code_change(OldVsn, State, Extra) of - {ok, NewState} -> - {ok, [Name, NewState, Mod, Time, TimeoutState, Queue]}; - Else -> - Else - end. - -%%----------------------------------------------------------------- -%% Format debug messages. Print them as the call-back module sees -%% them, not as the real erlang messages. Use trace for that. -%%----------------------------------------------------------------- -print_event(Dev, {in, Msg}, Name) -> - case Msg of - {'$gen_call', {From, _Tag}, Call} -> - io:format(Dev, "*DBG* ~p got call ~p from ~w~n", - [Name, Call, From]); - {'$gen_cast', Cast} -> - io:format(Dev, "*DBG* ~p got cast ~p~n", - [Name, Cast]); - _ -> - io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg]) - end; -print_event(Dev, {out, Msg, To, State}, Name) -> - io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n", - [Name, Msg, To, State]); -print_event(Dev, {noreply, State}, Name) -> - io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]); -print_event(Dev, Event, Name) -> - io:format(Dev, "*DBG* ~p dbg ~p~n", [Name, Event]). - - -%%% --------------------------------------------------- -%%% Terminate the server. -%%% --------------------------------------------------- - -terminate(Reason, Name, Msg, Mod, State, Debug) -> - case catch Mod:terminate(Reason, State) of - {'EXIT', R} -> - error_info(R, Name, Msg, State, Debug), - exit(R); - _ -> - case Reason of - normal -> - exit(normal); - shutdown -> - exit(shutdown); - {shutdown,_}=Shutdown -> - exit(Shutdown); - _ -> - error_info(Reason, Name, Msg, State, Debug), - exit(Reason) - end - end. - -error_info(_Reason, application_controller, _Msg, _State, _Debug) -> - %% OTP-5811 Don't send an error report if it's the system process - %% application_controller which is terminating - let init take care - %% of it instead - ok; -error_info(Reason, Name, Msg, State, Debug) -> - Reason1 = - case Reason of - {undef,[{M,F,A}|MFAs]} -> - case code:is_loaded(M) of - false -> - {'module could not be loaded',[{M,F,A}|MFAs]}; - _ -> - case erlang:function_exported(M, F, length(A)) of - true -> - Reason; - false -> - {'function not exported',[{M,F,A}|MFAs]} - end - end; - _ -> - Reason - end, - format("** Generic server ~p terminating \n" - "** Last message in was ~p~n" - "** When Server state == ~p~n" - "** Reason for termination == ~n** ~p~n", - [Name, Msg, State, Reason1]), - sys:print_log(Debug), - ok. - -%%% --------------------------------------------------- -%%% Misc. functions. -%%% --------------------------------------------------- - -opt(Op, [{Op, Value}|_]) -> - {ok, Value}; -opt(Op, [_|Options]) -> - opt(Op, Options); -opt(_, []) -> - false. - -debug_options(Name, Opts) -> - case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) - end. - -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). - -dbg_opts(Name, Opts) -> - case catch sys:debug_options(Opts) of - {'EXIT',_} -> - format("~p: ignoring erroneous debug options - ~p~n", - [Name, Opts]), - []; - Dbg -> - Dbg - end. - -get_proc_name(Pid) when is_pid(Pid) -> - Pid; -get_proc_name({local, Name}) -> - case process_info(self(), registered_name) of - {registered_name, Name} -> - Name; - {registered_name, _Name} -> - exit(process_not_registered); - [] -> - exit(process_not_registered) - end; -get_proc_name({global, Name}) -> - case global:safe_whereis_name(Name) of - undefined -> - exit(process_not_registered_globally); - Pid when Pid =:= self() -> - Name; - _Pid -> - exit(process_not_registered_globally) - end. - -get_parent() -> - case get('$ancestors') of - [Parent | _] when is_pid(Parent)-> - Parent; - [Parent | _] when is_atom(Parent)-> - name_to_pid(Parent); - _ -> - exit(process_was_not_started_by_proc_lib) - end. - -name_to_pid(Name) -> - case whereis(Name) of - undefined -> - case global:safe_whereis_name(Name) of - undefined -> - exit(could_not_find_registerd_name); - Pid -> - Pid - end; - Pid -> - Pid - end. - -%%----------------------------------------------------------------- -%% Status information -%%----------------------------------------------------------------- -format_status(Opt, StatusData) -> - [PDict, SysState, Parent, Debug, - [Name, State, Mod, _Time, _TimeoutState, Queue]] = StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), - Log = sys:get_debug(log, Debug, []), - Specfic = - case erlang:function_exported(Mod, format_status, 2) of - true -> - case catch Mod:format_status(Opt, [PDict, State]) of - {'EXIT', _} -> [{data, [{"State", State}]}]; - Else -> Else - end; - _ -> - [{data, [{"State", State}]}] - end, - [{header, Header}, - {data, [{"Status", SysState}, - {"Parent", Parent}, - {"Logged events", Log}, - {"Queued messages", priority_queue:to_list(Queue)}]} | - Specfic]. diff --git a/src/priority_queue.erl b/src/priority_queue.erl deleted file mode 100644 index 34bf8a06..00000000 --- a/src/priority_queue.erl +++ /dev/null @@ -1,191 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - -%% Priority queues have essentially the same interface as ordinary -%% queues, except that a) there is an in/3 that takes a priority, and -%% b) we have only implemented the core API we need. -%% -%% Priorities should be integers - the higher the value the higher the -%% priority - but we don't actually check that. -%% -%% in/2 inserts items with priority 0. -%% -%% We optimise the case where a priority queue is being used just like -%% an ordinary queue. When that is the case we represent the priority -%% queue as an ordinary queue. We could just call into the 'queue' -%% module for that, but for efficiency we implement the relevant -%% functions directly in here, thus saving on inter-module calls and -%% eliminating a level of boxing. -%% -%% When the queue contains items with non-zero priorities, it is -%% represented as a sorted kv list with the inverted Priority as the -%% key and an ordinary queue as the value. Here again we use our own -%% ordinary queue implemention for efficiency, often making recursive -%% calls into the same function knowing that ordinary queues represent -%% a base case. - - --module(priority_queue). - --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(priority() :: integer()). --type(squeue() :: {queue, [any()], [any()]}). --type(pqueue() :: squeue() | {pqueue, [{priority(), squeue()}]}). - --spec(new/0 :: () -> pqueue()). --spec(is_queue/1 :: (any()) -> boolean()). --spec(is_empty/1 :: (pqueue()) -> boolean()). --spec(len/1 :: (pqueue()) -> non_neg_integer()). --spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). --spec(in/2 :: (any(), pqueue()) -> pqueue()). --spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {(empty | {value, any()}), pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> - {queue, [], []}. - -is_queue({queue, R, F}) when is_list(R), is_list(F) -> - true; -is_queue({pqueue, Queues}) when is_list(Queues) -> - lists:all(fun ({P, Q}) -> is_integer(P) andalso is_queue(Q) end, - Queues); -is_queue(_) -> - false. - -is_empty({queue, [], []}) -> - true; -is_empty(_) -> - false. - -len({queue, R, F}) when is_list(R), is_list(F) -> - length(R) + length(F); -len({pqueue, Queues}) -> - lists:sum([len(Q) || {_, Q} <- Queues]). - -to_list({queue, In, Out}) when is_list(In), is_list(Out) -> - [{0, V} || V <- Out ++ lists:reverse(In, [])]; -to_list({pqueue, Queues}) -> - [{-P, V} || {P, Q} <- Queues, {0, V} <- to_list(Q)]. - -in(Item, Q) -> - in(Item, 0, Q). - -in(X, 0, {queue, [_] = In, []}) -> - {queue, [X], In}; -in(X, 0, {queue, In, Out}) when is_list(In), is_list(Out) -> - {queue, [X|In], Out}; -in(X, Priority, _Q = {queue, [], []}) -> - in(X, Priority, {pqueue, []}); -in(X, Priority, Q = {queue, _, _}) -> - in(X, Priority, {pqueue, [{0, Q}]}); -in(X, Priority, {pqueue, Queues}) -> - P = -Priority, - {pqueue, case lists:keysearch(P, 1, Queues) of - {value, {_, Q}} -> - lists:keyreplace(P, 1, Queues, {P, in(X, Q)}); - false -> - lists:keysort(1, [{P, {queue, [X], []}} | Queues]) - end}. - -out({queue, [], []} = Q) -> - {empty, Q}; -out({queue, [V], []}) -> - {{value, V}, {queue, [], []}}; -out({queue, [Y|In], []}) -> - [V|Out] = lists:reverse(In, []), - {{value, V}, {queue, [Y], Out}}; -out({queue, In, [V]}) when is_list(In) -> - {{value,V}, r2f(In)}; -out({queue, In,[V|Out]}) when is_list(In) -> - {{value, V}, {queue, In, Out}}; -out({pqueue, [{P, Q} | Queues]}) -> - {R, Q1} = out(Q), - NewQ = case is_empty(Q1) of - true -> case Queues of - [] -> {queue, [], []}; - [{0, OnlyQ}] -> OnlyQ; - [_|_] -> {pqueue, Queues} - end; - false -> {pqueue, [{P, Q1} | Queues]} - end, - {R, NewQ}. - -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - -r2f([]) -> {queue, [], []}; -r2f([_] = R) -> {queue, [], R}; -r2f([X,Y]) -> {queue, [X], [Y]}; -r2f([X,Y|R]) -> {queue, [X,Y], lists:reverse(R, [])}. diff --git a/src/rabbit.erl b/src/rabbit.erl deleted file mode 100644 index e69de29b..00000000 diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl deleted file mode 100644 index 04aeff24..00000000 --- a/src/rabbit_access_control.erl +++ /dev/null @@ -1,351 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_access_control). --include_lib("stdlib/include/qlc.hrl"). --include("rabbit.hrl"). - --export([check_login/2, user_pass_login/2, - check_vhost_access/2, check_resource_access/3]). --export([add_user/2, delete_user/1, change_password/2, list_users/0, - lookup_user/1]). --export([add_vhost/1, delete_vhost/1, list_vhosts/0]). --export([set_permissions/5, clear_permissions/2, - list_vhost_permissions/1, list_user_permissions/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(check_login/2 :: (binary(), binary()) -> user()). --spec(user_pass_login/2 :: (username(), password()) -> user()). --spec(check_vhost_access/2 :: (user(), vhost()) -> 'ok'). --spec(check_resource_access/3 :: - (username(), r(atom()), non_neg_integer()) -> 'ok'). --spec(add_user/2 :: (username(), password()) -> 'ok'). --spec(delete_user/1 :: (username()) -> 'ok'). --spec(change_password/2 :: (username(), password()) -> 'ok'). --spec(list_users/0 :: () -> [username()]). --spec(lookup_user/1 :: (username()) -> {'ok', user()} | not_found()). --spec(add_vhost/1 :: (vhost()) -> 'ok'). --spec(delete_vhost/1 :: (vhost()) -> 'ok'). --spec(list_vhosts/0 :: () -> [vhost()]). --spec(set_permissions/5 :: - (username(), vhost(), regexp(), regexp(), regexp()) -> 'ok'). --spec(clear_permissions/2 :: (username(), vhost()) -> 'ok'). --spec(list_vhost_permissions/1 :: - (vhost()) -> [{username(), regexp(), regexp(), regexp()}]). --spec(list_user_permissions/1 :: - (username()) -> [{vhost(), regexp(), regexp(), regexp()}]). - --endif. - -%%---------------------------------------------------------------------------- - -%% SASL PLAIN, as used by the Qpid Java client and our clients. Also, -%% apparently, by OpenAMQ. -check_login(<<"PLAIN">>, Response) -> - [User, Pass] = [list_to_binary(T) || - T <- string:tokens(binary_to_list(Response), [0])], - user_pass_login(User, Pass); -%% AMQPLAIN, as used by Qpid Python test suite. The 0-8 spec actually -%% defines this as PLAIN, but in 0-9 that definition is gone, instead -%% referring generically to "SASL security mechanism", i.e. the above. -check_login(<<"AMQPLAIN">>, Response) -> - LoginTable = rabbit_binary_parser:parse_table(Response), - case {lists:keysearch(<<"LOGIN">>, 1, LoginTable), - lists:keysearch(<<"PASSWORD">>, 1, LoginTable)} of - {{value, {_, longstr, User}}, - {value, {_, longstr, Pass}}} -> - user_pass_login(User, Pass); - _ -> - %% Is this an information leak? - rabbit_misc:protocol_error( - access_refused, - "AMQPPLAIN auth info ~w is missing LOGIN or PASSWORD field", - [LoginTable]) - end; - -check_login(Mechanism, _Response) -> - rabbit_misc:protocol_error( - access_refused, "unsupported authentication mechanism '~s'", - [Mechanism]). - -user_pass_login(User, Pass) -> - ?LOGDEBUG("Login with user ~p pass ~p~n", [User, Pass]), - case lookup_user(User) of - {ok, U} -> - if - Pass == U#user.password -> U; - true -> - rabbit_misc:protocol_error( - access_refused, "login refused for user '~s'", [User]) - end; - {error, not_found} -> - rabbit_misc:protocol_error( - access_refused, "login refused for user '~s'", [User]) - end. - -internal_lookup_vhost_access(Username, VHostPath) -> - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> not_found; - [R] -> {ok, R} - end - end). - -check_vhost_access(#user{username = Username}, VHostPath) -> - ?LOGDEBUG("Checking VHost access for ~p to ~p~n", [Username, VHostPath]), - case internal_lookup_vhost_access(Username, VHostPath) of - {ok, _R} -> - ok; - not_found -> - rabbit_misc:protocol_error( - access_refused, "access to vhost '~s' refused for user '~s'", - [VHostPath, Username]) - end. - -check_resource_access(Username, - R = #resource{kind = exchange, name = <<"">>}, - Permission) -> - check_resource_access(Username, - R#resource{name = <<"amq.default">>}, - Permission); -check_resource_access(_Username, - #resource{name = <<"amq.gen",_/binary>>}, - _Permission) -> - ok; -check_resource_access(Username, - R = #resource{virtual_host = VHostPath, name = Name}, - Permission) -> - Res = case mnesia:dirty_read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> - false; - [#user_permission{permission = P}] -> - case regexp:match( - binary_to_list(Name), - binary_to_list(element(Permission, P))) of - {match, _, _} -> true; - nomatch -> false - end - end, - if Res -> ok; - true -> rabbit_misc:protocol_error( - access_refused, "access to ~s refused for user '~s'", - [rabbit_misc:rs(R), Username]) - end. - -add_user(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_user, Username}) of - [] -> - ok = mnesia:write(rabbit_user, - #user{username = Username, - password = Password}, - write); - _ -> - mnesia:abort({user_already_exists, Username}) - end - end), - rabbit_log:info("Created user ~p~n", [Username]), - R. - -delete_user(Username) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:delete({rabbit_user, Username}), - [ok = mnesia:delete_object( - rabbit_user_permission, R, write) || - R <- mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = '_'}, - permission = '_'}, - write)], - ok - end)), - rabbit_log:info("Deleted user ~p~n", [Username]), - R. - -change_password(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:write(rabbit_user, - #user{username = Username, - password = Password}, - write) - end)), - rabbit_log:info("Changed password for user ~p~n", [Username]), - R. - -list_users() -> - mnesia:dirty_all_keys(rabbit_user). - -lookup_user(Username) -> - rabbit_misc:dirty_read({rabbit_user, Username}). - -add_vhost(VHostPath) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_vhost, VHostPath}) of - [] -> - ok = mnesia:write(rabbit_vhost, - #vhost{virtual_host = VHostPath}, - write), - [rabbit_exchange:declare( - rabbit_misc:r(VHostPath, exchange, Name), - Type, true, false, []) || - {Name,Type} <- - [{<<"">>, rabbit_exchange_type_direct}, - {<<"amq.direct">>, rabbit_exchange_type_direct}, - {<<"amq.topic">>, rabbit_exchange_type_topic}, - {<<"amq.match">>, rabbit_exchange_type_headers}, %% per 0-9-1 pdf - {<<"amq.headers">>, rabbit_exchange_type_headers}, %% per 0-9-1 xml - {<<"amq.fanout">>, rabbit_exchange_type_fanout}]], - ok; - [_] -> - mnesia:abort({vhost_already_exists, VHostPath}) - end - end), - rabbit_log:info("Added vhost ~p~n", [VHostPath]), - R. - -delete_vhost(VHostPath) -> - %%FIXME: We are forced to delete the queues outside the TX below - %%because queue deletion involves sending messages to the queue - %%process, which in turn results in further mnesia actions and - %%eventually the termination of that process. - lists:foreach(fun (Q) -> - {ok,_} = rabbit_amqqueue:delete(Q, false, false) - end, - rabbit_amqqueue:list(VHostPath)), - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_vhost( - VHostPath, - fun () -> - ok = internal_delete_vhost(VHostPath) - end)), - rabbit_log:info("Deleted vhost ~p~n", [VHostPath]), - R. - -internal_delete_vhost(VHostPath) -> - lists:foreach(fun (#exchange{name=Name}) -> - ok = rabbit_exchange:delete(Name, false) - end, - rabbit_exchange:list(VHostPath)), - lists:foreach(fun ({Username, _, _, _}) -> - ok = clear_permissions(Username, VHostPath) - end, - list_vhost_permissions(VHostPath)), - ok = mnesia:delete({rabbit_vhost, VHostPath}), - ok. - -list_vhosts() -> - mnesia:dirty_all_keys(rabbit_vhost). - -validate_regexp(RegexpBin) -> - Regexp = binary_to_list(RegexpBin), - case regexp:parse(Regexp) of - {ok, _} -> ok; - {error, Reason} -> throw({error, {invalid_regexp, Regexp, Reason}}) - end. - -set_permissions(Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm) -> - lists:map(fun validate_regexp/1, [ConfigurePerm, WritePerm, ReadPerm]), - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> ok = mnesia:write( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}}, - write) - end)). - -clear_permissions(Username, VHostPath) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> - ok = mnesia:delete({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) - end)). - -list_vhost_permissions(VHostPath) -> - [{Username, ConfigurePerm, WritePerm, ReadPerm} || - {Username, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_vhost( - VHostPath, match_user_vhost('_', VHostPath)))]. - -list_user_permissions(Username) -> - [{VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {_, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user( - Username, match_user_vhost(Username, '_')))]. - -list_permissions(QueryThunk) -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - #user_permission{user_vhost = #user_vhost{username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}} <- - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction(QueryThunk)]. - -match_user_vhost(Username, VHostPath) -> - fun () -> mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = '_'}, - read) - end. diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl deleted file mode 100644 index 1f1e3f85..00000000 --- a/src/rabbit_alarm.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_alarm). - --behaviour(gen_event). - --export([start/0, stop/0, register/2]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - --record(alarms, {alertees, vm_memory_high_watermark = false}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(mfa_tuple() :: {atom(), atom(), list()}). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). -<<<<<<< local --spec(maybe_conserve_memory/1 :: (pid()) -> 'ok'). - -======= --spec(register/2 :: (pid(), mfa_tuple()) -> 'ok'). - ->>>>>>> other --endif. - -%%---------------------------------------------------------------------------- - -start() -> - ok = alarm_handler:add_alarm_handler(?MODULE, []), - {ok, MemoryWatermark} = application:get_env(vm_memory_high_watermark), - ok = case MemoryWatermark == 0 of - true -> - ok; - false -> - rabbit_sup:start_child(vm_memory_monitor, [MemoryWatermark]) - end, - ok. - -stop() -> - ok = alarm_handler:delete_alarm_handler(?MODULE). - -<<<<<<< /tmp/rabbitmq-server/src/rabbit_alarm.erl -maybe_conserve_memory(QPid) -> - gen_event:call(alarm_handler, ?MODULE, {maybe_conserve_memory, QPid}). - {register, Pid, HighMemMFA}). -======= -register(Pid, HighMemMFA) -> - ok = gen_event:call(alarm_handler, ?MODULE, - {register, Pid, HighMemMFA}, - infinity). ->>>>>>> /tmp/rabbit_alarm.erl~other.Lee8ob - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #alarms{alertees = dict:new()}}. - -handle_call({register, Pid, {M, F, A} = HighMemMFA}, - ok = case State#alarms.vm_memory_high_watermark of - true -> apply(M, F, A ++ [Pid, true]); - false -> ok - end, - NewAlertees = dict:store(Pid, HighMemMFA, Alertess), - {ok, ok, State#alarms{alertees = NewAlertees}}; - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({set_alarm, {vm_memory_high_watermark, []}}, State) -> - rabbit_amqqueue:conserve_memory(true), - {ok, State#alarms{vm_memory_high_watermark = true}}; - -handle_event({clear_alarm, vm_memory_high_watermark}, State) -> - rabbit_amqqueue:conserve_memory(false), - {ok, State#alarms{vm_memory_high_watermark = false}}; - -handle_event(_Event, State) -> - {ok, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #alarms{alertees = Alertess}) -> - {ok, State#alarms{alertees = dict:erase(Pid, Alertess)}}; - -handle_info(_Info, State) -> - {ok, State}. - -terminate(_Arg, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -alert(_Alert, undefined) -> - ok; -alert(Alert, Alertees) -> - dict:fold(fun (Pid, {M, F, A}, Acc) -> - ok = erlang:apply(M, F, A ++ [Pid, Alert]), - Acc - end, ok, Alertees). diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl deleted file mode 100644 index e69de29b..00000000 diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl deleted file mode 100644 index d573f154..00000000 --- a/src/rabbit_amqqueue_process.erl +++ /dev/null @@ -1,882 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_amqqueue_process). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(gen_server2). - --define(UNSENT_MESSAGE_LIMIT, 100). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(MINIMUM_MEMORY_REPORT_TIME_INTERVAL, 10000). %% 10 seconds in milliseconds - --export([start_link/1]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1]). - --import(queue). --import(erlang). --import(lists). - -% Queue's state --record(q, {q, - owner, - exclusive_consumer, - has_had_consumers, - mixed_state, - next_msg_id, - active_consumers, - blocked_consumers, - memory_report_timer - }). - --record(consumer, {tag, ack_required}). - --record(tx, {ch_pid, pending_messages, pending_acks}). - -%% These are held in our process dictionary --record(cr, {consumer_count, - ch_pid, - limiter_pid, - monitor_ref, - unacked_messages, - is_limit_active, - txn, - unsent_message_count}). - --define(INFO_KEYS, - [name, - durable, - auto_delete, - arguments, - pid, - messages_ready, - messages_unacknowledged, - messages_uncommitted, - messages, - acks_uncommitted, - consumers, - transactions, - memory, - storage_mode, - pinned - ]). - -%%---------------------------------------------------------------------------- - -start_link(Q) -> - gen_server2:start_link(?MODULE, Q, []). - -%%---------------------------------------------------------------------------- - -init(Q = #amqqueue { name = QName, durable = Durable, pinned = Pinned }) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - ok = rabbit_memory_manager:register - (self(), false, rabbit_amqqueue, set_storage_mode, [self()]), - ok = case Pinned of - true -> rabbit_memory_manager:oppress(self()); - false -> ok - end, - {ok, MS} = rabbit_mixed_queue:init(QName, Durable), - State = #q{q = Q, - owner = none, - exclusive_consumer = none, - has_had_consumers = false, - mixed_state = MS, - next_msg_id = 1, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - memory_report_timer = undefined - }, - %% first thing we must do is report_memory. - {ok, start_memory_timer(State), hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -terminate(_Reason, State = #q{mixed_state = MS}) -> - %% FIXME: How do we cancel active subscriptions? - State1 = stop_memory_timer(State), - %% Ensure that any persisted tx messages are removed; - %% mixed_queue:delete_queue cannot do that for us since neither - %% mixed_queue nor disk_queue keep a record of uncommitted tx - %% messages. - {ok, MS1} = rabbit_mixed_queue:tx_rollback( - lists:concat([PM || #tx { pending_messages = PM } <- - all_tx_record()]), MS), - %% Delete from disk queue first. If we crash at this point, when a - %% durable queue, we will be recreated at startup, possibly with - %% partial content. The alternative is much worse however - if we - %% called internal_delete first, we would then have a race between - %% the disk_queue delete and a new queue with the same name being - %% created and published to. - {ok, _MS} = rabbit_mixed_queue:delete_queue(MS1), - ok = rabbit_amqqueue:internal_delete(qname(State1)). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -reply(Reply, NewState) -> - assert_invariant(NewState), - {reply, Reply, start_memory_timer(NewState), hibernate}. - -noreply(NewState) -> - assert_invariant(NewState), - {noreply, start_memory_timer(NewState), hibernate}. - -assert_invariant(#q { active_consumers = AC, mixed_state = MS }) -> - true = (queue:is_empty(AC) orelse rabbit_mixed_queue:is_empty(MS)). - -start_memory_timer(State = #q { memory_report_timer = undefined }) -> - {ok, TRef} = timer:send_after(?MINIMUM_MEMORY_REPORT_TIME_INTERVAL, - report_memory), - report_memory(false, State #q { memory_report_timer = TRef }); -start_memory_timer(State) -> - State. - -stop_memory_timer(State = #q { memory_report_timer = undefined }) -> - State; -stop_memory_timer(State = #q { memory_report_timer = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #q { memory_report_timer = undefined }. - -lookup_ch(ChPid) -> - case get({ch, ChPid}) of - undefined -> not_found; - C -> C - end. - -ch_record(ChPid) -> - Key = {ch, ChPid}, - case get(Key) of - undefined -> - MonitorRef = erlang:monitor(process, ChPid), - C = #cr{consumer_count = 0, - ch_pid = ChPid, - monitor_ref = MonitorRef, - unacked_messages = dict:new(), - is_limit_active = false, - txn = none, - unsent_message_count = 0}, - put(Key, C), - C; - C = #cr{} -> C - end. - -store_ch_record(C = #cr{ch_pid = ChPid}) -> - put({ch, ChPid}, C). - -all_ch_record() -> - [C || {{ch, _}, C} <- get()]. - -is_ch_blocked(#cr{unsent_message_count = Count, is_limit_active = Limited}) -> - Limited orelse Count >= ?UNSENT_MESSAGE_LIMIT. - -ch_record_state_transition(OldCR, NewCR) -> - BlockedOld = is_ch_blocked(OldCR), - BlockedNew = is_ch_blocked(NewCR), - if BlockedOld andalso not(BlockedNew) -> unblock; - BlockedNew andalso not(BlockedOld) -> block; - true -> ok - end. - -record_current_channel_tx(ChPid, Txn) -> - %% as a side effect this also starts monitoring the channel (if - %% that wasn't happening already) - store_ch_record((ch_record(ChPid))#cr{txn = Txn}). - -deliver_msgs_to_consumers( - Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers, - next_msg_id = NextId}) -> - case queue:out(ActiveConsumers) of - {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}}, - ActiveConsumersTail} -> - C = #cr{limiter_pid = LimiterPid, - unsent_message_count = Count, - unacked_messages = UAM} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of - true -> - {{Msg, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - ?LOGDEBUG("AMQQUEUE ~p DELIVERY:~n~p~n", [QName, Msg]), - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), NextId, IsDelivered, Msg}), - NewUAM = - case AckRequired of - true -> dict:store(NextId, {Msg, AckTag}, UAM); - false -> UAM - end, - NewC = C#cr{unsent_message_count = Count + 1, - unacked_messages = NewUAM}, - store_ch_record(NewC), - {NewActiveConsumers, NewBlockedConsumers} = - case ch_record_state_transition(C, NewC) of - ok -> {queue:in(QEntry, ActiveConsumersTail), - BlockedConsumers}; - block -> - {ActiveConsumers1, BlockedConsumers1} = - move_consumers(ChPid, - ActiveConsumersTail, - BlockedConsumers), - {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} - end, - State2 = State1 #q { - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers, - next_msg_id = NextId + 1 - }, - deliver_msgs_to_consumers(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> - store_ch_record(C#cr{is_limit_active = true}), - {NewActiveConsumers, NewBlockedConsumers} = - move_consumers(ChPid, - ActiveConsumers, - BlockedConsumers), - deliver_msgs_to_consumers( - Funs, FunAcc, - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} - end; - {empty, _} -> - {FunAcc, State} - end. - -deliver_from_queue_pred({IsEmpty, _AutoAcks}, _State) -> - not IsEmpty. -deliver_from_queue_deliver(AckRequired, {false, AutoAcks}, - State = #q { mixed_state = MS }) -> - {{Msg, IsDelivered, AckTag, Remaining}, MS1} = - rabbit_mixed_queue:fetch(MS), - AutoAcks1 = - case AckRequired of - true -> AutoAcks; - false -> [{Msg, AckTag} | AutoAcks] - end, - {{Msg, IsDelivered, AckTag}, {0 == Remaining, AutoAcks1}, - State #q { mixed_state = MS1 }}. - -run_message_queue(State = #q { mixed_state = MS }) -> - Funs = { fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3 }, - IsEmpty = rabbit_mixed_queue:is_empty(MS), - {{_IsEmpty1, AutoAcks}, State1} = - deliver_msgs_to_consumers(Funs, {IsEmpty, []}, State), - {ok, MS1} = - rabbit_mixed_queue:ack(AutoAcks, State1 #q.mixed_state), - State1 #q { mixed_state = MS1 }. - -attempt_immediate_delivery(none, _ChPid, Msg, State) -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1) -> - {AckTag, State2} = - case AckRequired of - true -> - {ok, AckTag1, MS} = - rabbit_mixed_queue:publish_delivered( - Msg, State1 #q.mixed_state), - {AckTag1, State1 #q { mixed_state = MS }}; - false -> - {noack, State1} - end, - {{Msg, false, AckTag}, true, State2} - end, - deliver_msgs_to_consumers({ PredFun, DeliverFun }, false, State); -attempt_immediate_delivery(Txn, ChPid, Msg, State) -> - {ok, MS} = rabbit_mixed_queue:tx_publish(Msg, State #q.mixed_state), - record_pending_message(Txn, ChPid, Msg), - {true, State #q { mixed_state = MS }}. - -deliver_or_enqueue(Txn, ChPid, Msg, State) -> - case attempt_immediate_delivery(Txn, ChPid, Msg, State) of - {true, NewState} -> - {true, NewState}; - {false, NewState} -> - %% Txn is none and no unblocked channels with consumers - {ok, MS} = rabbit_mixed_queue:publish(Msg, State #q.mixed_state), - {false, NewState #q { mixed_state = MS }} - end. - -%% all these messages have already been delivered at least once and -%% not ack'd, but need to be either redelivered or requeued -deliver_or_requeue_n([], State) -> - State; -deliver_or_requeue_n(MsgsWithAcks, State) -> - Funs = { fun deliver_or_requeue_msgs_pred/2, - fun deliver_or_requeue_msgs_deliver/3 }, - {{_RemainingLengthMinusOne, AutoAcks, OutstandingMsgs}, NewState} = - deliver_msgs_to_consumers( - Funs, {length(MsgsWithAcks), [], MsgsWithAcks}, State), - {ok, MS} = rabbit_mixed_queue:ack(AutoAcks, NewState #q.mixed_state), - case OutstandingMsgs of - [] -> NewState #q { mixed_state = MS }; - _ -> {ok, MS1} = rabbit_mixed_queue:requeue(OutstandingMsgs, MS), - NewState #q { mixed_state = MS1 } - end. - -deliver_or_requeue_msgs_pred({Len, _AcksAcc, _MsgsWithAcks}, _State) -> - 0 < Len. -deliver_or_requeue_msgs_deliver( - false, {Len, AcksAcc, [(MsgAckTag = {Msg, _}) | MsgsWithAcks]}, State) -> - {{Msg, true, noack}, {Len - 1, [MsgAckTag | AcksAcc], MsgsWithAcks}, State}; -deliver_or_requeue_msgs_deliver( - true, {Len, AcksAcc, [{Msg, AckTag} | MsgsWithAcks]}, State) -> - {{Msg, true, AckTag}, {Len - 1, AcksAcc, MsgsWithAcks}, State}. - -add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). - -remove_consumer(ChPid, ConsumerTag, Queue) -> - %% TODO: replace this with queue:filter/2 once we move to R12 - queue:from_list(lists:filter( - fun ({CP, #consumer{tag = CT}}) -> - (CP /= ChPid) or (CT /= ConsumerTag) - end, queue:to_list(Queue))). - -remove_consumers(ChPid, Queue) -> - %% TODO: replace this with queue:filter/2 once we move to R12 - queue:from_list(lists:filter(fun ({CP, _}) -> CP /= ChPid end, - queue:to_list(Queue))). - -move_consumers(ChPid, From, To) -> - {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, - queue:to_list(From)), - {queue:from_list(Kept), queue:join(To, queue:from_list(Removed))}. - -possibly_unblock(State, ChPid, Update) -> - case lookup_ch(ChPid) of - not_found -> - State; - C -> - NewC = Update(C), - store_ch_record(NewC), - case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> {NewBlockedeConsumers, NewActiveConsumers} = - move_consumers(ChPid, - State#q.blocked_consumers, - State#q.active_consumers), - run_message_queue( - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedeConsumers}) - end - end. - -should_auto_delete(#q{q = #amqqueue{auto_delete = false}}) -> false; -should_auto_delete(#q{has_had_consumers = false}) -> false; -should_auto_delete(State) -> is_unused(State). - -handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(DownPid) of - not_found -> noreply(State); - #cr{monitor_ref = MonitorRef, ch_pid = ChPid, txn = Txn, - unacked_messages = UAM} -> - erlang:demonitor(MonitorRef), - erase({ch, ChPid}), - State1 = State#q{ - exclusive_consumer = case Holder of - {ChPid, _} -> none; - Other -> Other - end, - active_consumers = remove_consumers( - ChPid, State#q.active_consumers), - blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, - case should_auto_delete(State1) of - true -> - {stop, normal, State1}; - false -> - State2 = case Txn of - none -> State1; - _ -> rollback_transaction(Txn, State1) - end, - noreply( - deliver_or_requeue_n( - [MsgWithAck || - {_MsgId, MsgWithAck} <- dict:to_list(UAM)], State2)) - end - end. - -cancel_holder(ChPid, ConsumerTag, {ChPid, ConsumerTag}) -> - none; -cancel_holder(_ChPid, _ConsumerTag, Holder) -> - Holder. - -check_queue_owner(none, _) -> ok; -check_queue_owner({ReaderPid, _}, ReaderPid) -> ok; -check_queue_owner({_, _}, _) -> mismatch. - -check_exclusive_access({_ChPid, _ConsumerTag}, _ExclusiveConsume, _State) -> - in_use; -check_exclusive_access(none, false, _State) -> - ok; -check_exclusive_access(none, true, State) -> - case is_unused(State) of - true -> ok; - false -> in_use - end. - -is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso - queue:is_empty(State#q.blocked_consumers). - -maybe_send_reply(_ChPid, undefined) -> ok; -maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). - -qname(#q{q = #amqqueue{name = QName}}) -> QName. - -lookup_tx(Txn) -> - case get({txn, Txn}) of - undefined -> #tx{ch_pid = none, - pending_messages = [], - pending_acks = []}; - V -> V - end. - -store_tx(Txn, Tx) -> - put({txn, Txn}, Tx). - -erase_tx(Txn) -> - erase({txn, Txn}). - -all_tx_record() -> - [T || {{txn, _}, T} <- get()]. - -record_pending_message(Txn, ChPid, Message) -> - Tx = #tx{pending_messages = Pending} = lookup_tx(Txn), - record_current_channel_tx(ChPid, Txn), - store_tx(Txn, Tx #tx { pending_messages = [Message | Pending] }). - -record_pending_acks(Txn, ChPid, MsgIds) -> - Tx = #tx{pending_acks = Pending} = lookup_tx(Txn), - record_current_channel_tx(ChPid, Txn), - store_tx(Txn, Tx#tx{pending_acks = [MsgIds | Pending], - ch_pid = ChPid}). - -commit_transaction(Txn, State) -> - #tx { ch_pid = ChPid, - pending_messages = PendingMessages, - pending_acks = PendingAcks - } = lookup_tx(Txn), - PendingMessagesOrdered = lists:reverse(PendingMessages), - PendingAcksOrdered = lists:append(PendingAcks), - Acks = - case lookup_ch(ChPid) of - not_found -> []; - C = #cr { unacked_messages = UAM } -> - {MsgWithAcks, Remaining} = - collect_messages(PendingAcksOrdered, UAM), - store_ch_record(C#cr{unacked_messages = Remaining}), - MsgWithAcks - end, - {ok, MS} = rabbit_mixed_queue:tx_commit( - PendingMessagesOrdered, Acks, State #q.mixed_state), - State #q { mixed_state = MS }. - -rollback_transaction(Txn, State) -> - #tx { pending_messages = PendingMessages - } = lookup_tx(Txn), - {ok, MS} = rabbit_mixed_queue:tx_rollback(PendingMessages, - State #q.mixed_state), - erase_tx(Txn), - State #q { mixed_state = MS }. - -%% {A, B} = collect_messages(C, D) %% A = C `intersect` D; B = D \\ C -%% err, A = C `intersect` D , via projection through the dict that is C -collect_messages(MsgIds, UAM) -> - lists:mapfoldl( - fun (MsgId, D) -> {dict:fetch(MsgId, D), dict:erase(MsgId, D)} end, - UAM, MsgIds). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(name, #q{q = #amqqueue{name = Name}}) -> Name; -i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; -i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; -i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(pinned, #q{q = #amqqueue{pinned = Pinned}}) -> Pinned; -i(storage_mode, #q{ mixed_state = MS }) -> - rabbit_mixed_queue:storage_mode(MS); -i(pid, _) -> - self(); -i(messages_ready, #q { mixed_state = MS }) -> - rabbit_mixed_queue:len(MS); -i(messages_unacknowledged, _) -> - lists:sum([dict:size(UAM) || - #cr{unacked_messages = UAM} <- all_ch_record()]); -i(messages_uncommitted, _) -> - lists:sum([length(Pending) || - #tx{pending_messages = Pending} <- all_tx_record()]); -i(messages, State) -> - lists:sum([i(Item, State) || Item <- [messages_ready, - messages_unacknowledged, - messages_uncommitted]]); -i(acks_uncommitted, _) -> - lists:sum([length(Pending) || - #tx{pending_acks = Pending} <- all_tx_record()]); -i(consumers, State) -> - queue:len(State#q.active_consumers) + queue:len(State#q.blocked_consumers); -i(transactions, _) -> - length(all_tx_record()); -i(memory, _) -> - {memory, M} = process_info(self(), memory), - M; -i(Item, _) -> - throw({bad_argument, Item}). - -report_memory(Hib, State = #q { mixed_state = MS }) -> - {MS1, MSize} = rabbit_mixed_queue:estimate_queue_memory(MS), - rabbit_memory_manager:report_memory(self(), MSize, Hib), - State #q { mixed_state = MS1 }. - -%--------------------------------------------------------------------------- - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> - %% Synchronous, "immediate" delivery mode - %% - %% FIXME: Is this correct semantics? - %% - %% I'm worried in particular about the case where an exchange has - %% two queues against a particular routing key, and a message is - %% sent in immediate mode through the binding. In non-immediate - %% mode, both queues get the message, saving it for later if - %% there's noone ready to receive it just now. In immediate mode, - %% should both queues still get the message, somehow, or should - %% just all ready-to-consume queues get the message, with unready - %% queues discarding the message? - %% - {Delivered, NewState} = - attempt_immediate_delivery(Txn, ChPid, Message, State), - reply(Delivered, NewState); - -handle_call({deliver, Txn, Message, ChPid}, _From, State) -> - %% Synchronous, "mandatory" delivery mode - {Delivered, NewState} = deliver_or_enqueue(Txn, ChPid, Message, State), - reply(Delivered, NewState); - -handle_call({commit, Txn}, From, State) -> - NewState = commit_transaction(Txn, State), - %% optimisation: we reply straight away so the sender can continue - gen_server2:reply(From, ok), - erase_tx(Txn), - noreply(run_message_queue(NewState)); - -handle_call({notify_down, ChPid}, From, State) -> - %% optimisation: we reply straight away so the sender can continue - gen_server2:reply(From, ok), - handle_ch_down(ChPid, State); - -handle_call({basic_get, ChPid, NoAck}, _From, - State = #q{q = #amqqueue{name = QName}, - next_msg_id = NextId, - mixed_state = MS - }) -> - case rabbit_mixed_queue:fetch(MS) of - {empty, MS1} -> reply(empty, State #q { mixed_state = MS1 }); - {{Msg, IsDelivered, AckTag, Remaining}, MS1} -> - AckRequired = not(NoAck), - {ok, MS2} = - case AckRequired of - true -> - C = #cr{unacked_messages = UAM} = ch_record(ChPid), - NewUAM = dict:store(NextId, {Msg, AckTag}, UAM), - store_ch_record(C#cr{unacked_messages = NewUAM}), - {ok, MS1}; - false -> - rabbit_mixed_queue:ack([{Msg, AckTag}], MS1) - end, - Message = {QName, self(), NextId, IsDelivered, Msg}, - reply({ok, Remaining, Message}, - State #q { next_msg_id = NextId + 1, mixed_state = MS2 }) - end; - -handle_call({basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg}, - _From, State = #q{owner = Owner, - exclusive_consumer = ExistingHolder}) -> - case check_queue_owner(Owner, ReaderPid) of - mismatch -> - reply({error, queue_owned_by_another_connection}, State); - ok -> - case check_exclusive_access(ExistingHolder, ExclusiveConsume, - State) of - in_use -> - reply({error, exclusive_consume_unavailable}, State); - ok -> - C = #cr{consumer_count = ConsumerCount} = ch_record(ChPid), - Consumer = #consumer{tag = ConsumerTag, - ack_required = not(NoAck)}, - store_ch_record(C#cr{consumer_count = ConsumerCount +1, - limiter_pid = LimiterPid}), - case ConsumerCount of - 0 -> ok = rabbit_limiter:register(LimiterPid, self()); - _ -> ok - end, - ExclusiveConsumer = case ExclusiveConsume of - true -> {ChPid, ConsumerTag}; - false -> ExistingHolder - end, - State1 = State#q{has_had_consumers = true, - exclusive_consumer = ExclusiveConsumer}, - ok = maybe_send_reply(ChPid, OkMsg), - State2 = - case is_ch_blocked(C) of - true -> State1#q{ - blocked_consumers = - add_consumer( - ChPid, Consumer, - State1#q.blocked_consumers)}; - false -> run_message_queue( - State1#q{ - active_consumers = - add_consumer( - ChPid, Consumer, - State1#q.active_consumers)}) - end, - reply(ok, State2) - end - end; - -handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, - State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(ChPid) of - not_found -> - ok = maybe_send_reply(ChPid, OkMsg), - reply(ok, State); - C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> - store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - ok = case ConsumerCount of - 1 -> rabbit_limiter:unregister(LimiterPid, self()); - _ -> ok - end, - ok = maybe_send_reply(ChPid, OkMsg), - NewState = - State#q{exclusive_consumer = cancel_holder(ChPid, - ConsumerTag, - Holder), - active_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.active_consumers), - blocked_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.blocked_consumers)}, - case should_auto_delete(NewState) of - false -> reply(ok, NewState); - true -> {stop, normal, ok, NewState} - end - end; - -handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, - mixed_state = MS, - active_consumers = ActiveConsumers}) -> - Length = rabbit_mixed_queue:len(MS), - reply({ok, Name, Length, queue:len(ActiveConsumers)}, State); - -handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q { mixed_state = MS }) -> - Length = rabbit_mixed_queue:len(MS), - IsEmpty = Length == 0, - IsUnused = is_unused(State), - if - IfEmpty and not(IsEmpty) -> - reply({error, not_empty}, State); - IfUnused and not(IsUnused) -> - reply({error, in_use}, State); - true -> - {stop, normal, {ok, Length}, State} - end; - -handle_call(purge, _From, State) -> - {Count, MS} = rabbit_mixed_queue:purge(State #q.mixed_state), - reply({ok, Count}, State #q { mixed_state = MS }); - -handle_call({claim_queue, ReaderPid}, _From, - State = #q{owner = Owner, exclusive_consumer = Holder}) -> - case Owner of - none -> - case check_exclusive_access(Holder, true, State) of - in_use -> - %% FIXME: Is this really the right answer? What if - %% an active consumer's reader is actually the - %% claiming pid? Should that be allowed? In order - %% to check, we'd need to hold not just the ch - %% pid for each consumer, but also its reader - %% pid... - reply(locked, State); - ok -> - reply(ok, - State#q{ owner = {ReaderPid, erlang:monitor( - process, ReaderPid)} }) - end; - {ReaderPid, _MonitorRef} -> - reply(ok, State); - _ -> - reply(locked, State) - end. - -handle_cast({deliver, Txn, Message, ChPid}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - {_Delivered, NewState} = deliver_or_enqueue(Txn, ChPid, Message, State), - noreply(NewState); - -handle_cast({ack, Txn, MsgIds, ChPid}, State) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{unacked_messages = UAM} -> - case Txn of - none -> - {MsgWithAcks, Remaining} = collect_messages(MsgIds, UAM), - {ok, MS} = - rabbit_mixed_queue:ack(MsgWithAcks, State #q.mixed_state), - store_ch_record(C#cr{unacked_messages = Remaining}), - noreply(State #q { mixed_state = MS }); - _ -> - record_pending_acks(Txn, ChPid, MsgIds), - noreply(State) - end - end; - -handle_cast({rollback, Txn}, State) -> - noreply(rollback_transaction(Txn, State)); - -handle_cast({requeue, MsgIds, ChPid}, State) -> - case lookup_ch(ChPid) of - not_found -> - rabbit_log:warning("Ignoring requeue from unknown ch: ~p~n", - [ChPid]), - noreply(State); - C = #cr{unacked_messages = UAM} -> - {MsgWithAcks, NewUAM} = collect_messages(MsgIds, UAM), - store_ch_record(C#cr{unacked_messages = NewUAM}), - noreply(deliver_or_requeue_n(MsgWithAcks, State)) - end; - -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - -handle_cast({notify_sent, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C = #cr{unsent_message_count = Count}) -> - C#cr{unsent_message_count = Count - 1} - end)); - -handle_cast({limit, ChPid, LimiterPid}, State) -> - noreply( - possibly_unblock( - State, ChPid, - fun (C = #cr{consumer_count = ConsumerCount, - limiter_pid = OldLimiterPid, - is_limit_active = Limited}) -> - if ConsumerCount =/= 0 andalso OldLimiterPid == undefined -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, - NewLimited = Limited andalso LimiterPid =/= undefined, - C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({set_storage_mode, Mode}, State = #q { mixed_state = MS }) -> - PendingMessages = - lists:flatten([Pending || #tx { pending_messages = Pending} - <- all_tx_record()]), - Mode1 = case Mode of - liberated -> mixed; - oppressed -> disk - end, - {ok, MS1} = rabbit_mixed_queue:set_storage_mode(Mode1, PendingMessages, MS), - noreply(State #q { mixed_state = MS1 }); - -handle_cast({set_storage_mode_pin, Disk, Q}, State = #q { q = PQ }) -> - ok = rabbit_amqqueue:internal_store(Q#amqqueue{pinned = Disk}), - ok = (case Disk of - true -> fun rabbit_memory_manager:oppress/1; - false -> fun rabbit_memory_manager:liberate/1 - end)(self()), - noreply(State #q { q = PQ#amqqueue{ pinned = Disk } }). - -handle_info(report_memory, State) -> - %% deliberately don't call noreply/1 as we don't want to start the timer. - %% By unsetting the timer, we force a report on the next normal message. - {noreply, State #q { memory_report_timer = undefined }, hibernate}; - -handle_info({'DOWN', MonitorRef, process, DownPid, _Reason}, - State = #q{owner = {DownPid, MonitorRef}}) -> - %% We know here that there are no consumers on this queue that are - %% owned by other pids than the one that just went down, so since - %% exclusive in some sense implies autodelete, we delete the queue - %% here. The other way of implementing the "exclusive implies - %% autodelete" feature is to actually set autodelete when an - %% exclusive declaration is seen, but this has the problem that - %% the python tests rely on the queue not going away after a - %% basic.cancel when the queue was declared exclusive and - %% nonautodelete. - NewState = State#q{owner = none}, - {stop, normal, NewState}; -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> - handle_ch_down(DownPid, State); - -handle_info(Info, State) -> - ?LOGDEBUG("Info in queue: ~p~n", [Info]), - {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q { mixed_state = MS }) -> - MS1 = rabbit_mixed_queue:maybe_prefetch(MS), - State1 = - stop_memory_timer(report_memory(true, State #q { mixed_state = MS1 })), - %% don't call noreply/1 as that'll restart the memory_report_timer - {hibernate, State1}. diff --git a/src/rabbit_amqqueue_sup.erl b/src/rabbit_amqqueue_sup.erl deleted file mode 100644 index f06e4c53..00000000 --- a/src/rabbit_amqqueue_sup.erl +++ /dev/null @@ -1,46 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_amqqueue_sup). - --behaviour(supervisor). - --export([start_link/0]). - --export([init/1]). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -init([]) -> - {ok, {{one_for_one, 10, 10}, []}}. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl deleted file mode 100644 index 14c655a6..00000000 --- a/src/rabbit_basic.erl +++ /dev/null @@ -1,143 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_basic). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([publish/1, message/4, message/5, message/6, delivery/4]). --export([properties/1, publish/4, publish/7]). --export([build_content/2, from_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(properties_input() :: (amqp_properties() | [{atom(), any()}])). --type(publish_result() :: ({ok, routing_result(), [pid()]} | not_found())). - --spec(publish/1 :: (delivery()) -> publish_result()). --spec(delivery/4 :: (boolean(), boolean(), maybe(txn()), message()) -> - delivery()). --spec(message/4 :: (exchange_name(), routing_key(), properties_input(), - binary()) -> message()). --spec(message/5 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid()) -> message()). --spec(message/6 :: (exchange_name(), routing_key(), properties_input(), - binary(), guid(), boolean()) -> message()). --spec(properties/1 :: (properties_input()) -> amqp_properties()). --spec(publish/4 :: (exchange_name(), routing_key(), properties_input(), - binary()) -> publish_result()). --spec(publish/7 :: (exchange_name(), routing_key(), boolean(), boolean(), - maybe(txn()), properties_input(), binary()) -> - publish_result()). --spec(build_content/2 :: (amqp_properties(), binary()) -> content()). --spec(from_content/1 :: (content()) -> {amqp_properties(), binary()}). - --endif. - -%%---------------------------------------------------------------------------- - -publish(Delivery = #delivery{ - message = #basic_message{exchange_name = ExchangeName}}) -> - case rabbit_exchange:lookup(ExchangeName) of - {ok, X} -> - {RoutingRes, DeliveredQPids} = rabbit_exchange:publish(X, Delivery), - {ok, RoutingRes, DeliveredQPids}; - Other -> - Other - end. - -delivery(Mandatory, Immediate, Txn, Message) -> - #delivery{mandatory = Mandatory, immediate = Immediate, txn = Txn, - sender = self(), message = Message}. - -build_content(Properties, BodyBin) -> - {ClassId, _MethodId} = rabbit_framing:method_id('basic.publish'), - #content{class_id = ClassId, - properties = Properties, - properties_bin = none, - payload_fragments_rev = [BodyBin]}. - -from_content(Content) -> - #content{class_id = ClassId, - properties = Props, - payload_fragments_rev = FragmentsRev} = - rabbit_binary_parser:ensure_content_decoded(Content), - {ClassId, _MethodId} = rabbit_framing:method_id('basic.publish'), - {Props, list_to_binary(lists:reverse(FragmentsRev))}. - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, rabbit_guid:guid()). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId) -> - message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, false). - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin, MsgId, IsPersistent) -> - Properties = properties(RawProperties), - #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKeyBin, - content = build_content(Properties, BodyBin), - guid = MsgId, - is_persistent = IsPersistent}. - -properties(P = #'P_basic'{}) -> - P; -properties(P) when is_list(P) -> - %% Yes, this is O(length(P) * record_info(size, 'P_basic') / 2), - %% i.e. slow. Use the definition of 'P_basic' directly if - %% possible! - lists:foldl(fun ({Key, Value}, Acc) -> - case indexof(record_info(fields, 'P_basic'), Key) of - 0 -> throw({unknown_basic_property, Key}); - N -> setelement(N + 1, Acc, Value) - end - end, #'P_basic'{}, P). - -indexof(L, Element) -> indexof(L, Element, 1). - -indexof([], _Element, _N) -> 0; -indexof([Element | _Rest], Element, N) -> N; -indexof([_ | Rest], Element, N) -> indexof(Rest, Element, N + 1). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(ExchangeName, RoutingKeyBin, Properties, BodyBin) -> - publish(ExchangeName, RoutingKeyBin, false, false, none, Properties, - BodyBin). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(ExchangeName, RoutingKeyBin, Mandatory, Immediate, Txn, Properties, - BodyBin) -> - publish(delivery(Mandatory, Immediate, Txn, - message(ExchangeName, RoutingKeyBin, - properties(Properties), BodyBin))). diff --git a/src/rabbit_binary_generator.erl b/src/rabbit_binary_generator.erl deleted file mode 100644 index 5aeb56d6..00000000 --- a/src/rabbit_binary_generator.erl +++ /dev/null @@ -1,283 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_binary_generator). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - -% EMPTY_CONTENT_BODY_FRAME_SIZE, 8 = 1 + 2 + 4 + 1 -% - 1 byte of frame type -% - 2 bytes of channel number -% - 4 bytes of frame payload length -% - 1 byte of payload trailer FRAME_END byte -% See definition of check_empty_content_body_frame_size/0, an assertion called at startup. --define(EMPTY_CONTENT_BODY_FRAME_SIZE, 8). - --export([build_simple_method_frame/2, - build_simple_content_frames/3, - build_heartbeat_frame/0]). --export([generate_table/1, encode_properties/2]). --export([check_empty_content_body_frame_size/0]). --export([ensure_content_encoded/1, clear_encoded_content/1]). - --import(lists). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame() :: [binary()]). - --spec(build_simple_method_frame/2 :: - (channel_number(), amqp_method()) -> frame()). --spec(build_simple_content_frames/3 :: - (channel_number(), content(), non_neg_integer()) -> [frame()]). --spec(build_heartbeat_frame/0 :: () -> frame()). --spec(generate_table/1 :: (amqp_table()) -> binary()). --spec(encode_properties/2 :: ([amqp_property_type()], [any()]) -> binary()). --spec(check_empty_content_body_frame_size/0 :: () -> 'ok'). --spec(ensure_content_encoded/1 :: (content()) -> encoded_content()). --spec(clear_encoded_content/1 :: (content()) -> unencoded_content()). - --endif. - -%%---------------------------------------------------------------------------- - -build_simple_method_frame(ChannelInt, MethodRecord) -> - MethodFields = rabbit_framing:encode_method_fields(MethodRecord), - MethodName = rabbit_misc:method_record_type(MethodRecord), - {ClassId, MethodId} = rabbit_framing:method_id(MethodName), - create_frame(1, ChannelInt, [<>, MethodFields]). - -build_simple_content_frames(ChannelInt, - #content{class_id = ClassId, - properties = ContentProperties, - properties_bin = ContentPropertiesBin, - payload_fragments_rev = PayloadFragmentsRev}, - FrameMax) -> - {BodySize, ContentFrames} = build_content_frames(PayloadFragmentsRev, FrameMax, ChannelInt), - HeaderFrame = create_frame(2, ChannelInt, - [<>, - maybe_encode_properties(ContentProperties, ContentPropertiesBin)]), - [HeaderFrame | ContentFrames]. - -maybe_encode_properties(_ContentProperties, ContentPropertiesBin) - when is_binary(ContentPropertiesBin) -> - ContentPropertiesBin; -maybe_encode_properties(ContentProperties, none) -> - rabbit_framing:encode_properties(ContentProperties). - -build_content_frames(FragmentsRev, FrameMax, ChannelInt) -> - BodyPayloadMax = if - FrameMax == 0 -> - none; - true -> - FrameMax - ?EMPTY_CONTENT_BODY_FRAME_SIZE - end, - build_content_frames(0, [], FragmentsRev, BodyPayloadMax, ChannelInt). - -build_content_frames(SizeAcc, FragmentAcc, [], _BodyPayloadMax, _ChannelInt) -> - {SizeAcc, FragmentAcc}; -build_content_frames(SizeAcc, FragmentAcc, [Fragment | FragmentsRev], - BodyPayloadMax, ChannelInt) - when is_number(BodyPayloadMax) and (size(Fragment) > BodyPayloadMax) -> - <> = Fragment, - build_content_frames(SizeAcc, FragmentAcc, [Tail, Head | FragmentsRev], - BodyPayloadMax, ChannelInt); -build_content_frames(SizeAcc, FragmentAcc, [<<>> | FragmentsRev], - BodyPayloadMax, ChannelInt) -> - build_content_frames(SizeAcc, FragmentAcc, FragmentsRev, BodyPayloadMax, ChannelInt); -build_content_frames(SizeAcc, FragmentAcc, [Fragment | FragmentsRev], - BodyPayloadMax, ChannelInt) -> - build_content_frames(SizeAcc + size(Fragment), - [create_frame(3, ChannelInt, Fragment) | FragmentAcc], - FragmentsRev, - BodyPayloadMax, - ChannelInt). - -build_heartbeat_frame() -> - create_frame(?FRAME_HEARTBEAT, 0, <<>>). - -create_frame(TypeInt, ChannelInt, PayloadBin) when is_binary(PayloadBin) -> - [<>, PayloadBin, <>]; -create_frame(TypeInt, ChannelInt, Payload) -> - create_frame(TypeInt, ChannelInt, list_to_binary(Payload)). - -%% table_field_to_binary supports the AMQP 0-8/0-9 standard types, S, -%% I, D, T and F, as well as the QPid extensions b, d, f, l, s, t, x, -%% and V. - -table_field_to_binary({FName, Type, Value}) -> - [short_string_to_binary(FName) | field_value_to_binary(Type, Value)]. - -field_value_to_binary(longstr, Value) -> - ["S", long_string_to_binary(Value)]; - -field_value_to_binary(signedint, Value) -> - ["I", <>]; - -field_value_to_binary(decimal, {Before, After}) -> - ["D", Before, <>]; - -field_value_to_binary(timestamp, Value) -> - ["T", <>]; - -field_value_to_binary(table, Value) -> - ["F", table_to_binary(Value)]; - -field_value_to_binary(array, Value) -> - ["A", array_to_binary(Value)]; - -field_value_to_binary(byte, Value) -> - ["b", <>]; - -field_value_to_binary(double, Value) -> - ["d", <>]; - -field_value_to_binary(float, Value) -> - ["f", <>]; - -field_value_to_binary(long, Value) -> - ["l", <>]; - -field_value_to_binary(short, Value) -> - ["s", <>]; - -field_value_to_binary(bool, Value) -> - ["t", if Value -> 1; true -> 0 end]; - -field_value_to_binary(binary, Value) -> - ["x", long_string_to_binary(Value)]; - -field_value_to_binary(void, _Value) -> - ["V"]. - -table_to_binary(Table) when is_list(Table) -> - BinTable = generate_table(Table), - [<<(size(BinTable)):32>>, BinTable]. - -array_to_binary(Array) when is_list(Array) -> - BinArray = generate_array(Array), - [<<(size(BinArray)):32>>, BinArray]. - -generate_table(Table) when is_list(Table) -> - list_to_binary(lists:map(fun table_field_to_binary/1, Table)). - -generate_array(Array) when is_list(Array) -> - list_to_binary(lists:map( - fun ({Type, Value}) -> field_value_to_binary(Type, Value) end, - Array)). - -short_string_to_binary(String) when is_binary(String) and (size(String) < 256) -> - [<<(size(String)):8>>, String]; -short_string_to_binary(String) -> - StringLength = length(String), - true = (StringLength < 256), % assertion - [<>, String]. - -long_string_to_binary(String) when is_binary(String) -> - [<<(size(String)):32>>, String]; -long_string_to_binary(String) -> - [<<(length(String)):32>>, String]. - -encode_properties([], []) -> - <<0, 0>>; -encode_properties(TypeList, ValueList) -> - encode_properties(0, TypeList, ValueList, 0, [], []). - -encode_properties(_Bit, [], [], FirstShortAcc, FlagsAcc, PropsAcc) -> - list_to_binary([lists:reverse(FlagsAcc), <>, lists:reverse(PropsAcc)]); -encode_properties(_Bit, [], _ValueList, _FirstShortAcc, _FlagsAcc, _PropsAcc) -> - exit(content_properties_values_overflow); -encode_properties(15, TypeList, ValueList, FirstShortAcc, FlagsAcc, PropsAcc) -> - NewFlagsShort = FirstShortAcc bor 1, % set the continuation low bit - encode_properties(0, TypeList, ValueList, 0, [<> | FlagsAcc], PropsAcc); -encode_properties(Bit, [bit | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - true -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), FlagsAcc, PropsAcc); - false -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - Other -> exit({content_properties_illegal_bit_value, Other}) - end; -encode_properties(Bit, [T | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - undefined -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - _ -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), - FlagsAcc, - [encode_property(T, Value) | PropsAcc]) - end. - -encode_property(shortstr, String) -> - Len = size(String), <>; -encode_property(longstr, String) -> - Len = size(String), <>; -encode_property(octet, Int) -> - <>; -encode_property(shortint, Int) -> - <>; -encode_property(longint, Int) -> - <>; -encode_property(longlongint, Int) -> - <>; -encode_property(timestamp, Int) -> - <>; -encode_property(table, Table) -> - table_to_binary(Table). - -check_empty_content_body_frame_size() -> - %% Intended to ensure that EMPTY_CONTENT_BODY_FRAME_SIZE is - %% defined correctly. - ComputedSize = size(list_to_binary(create_frame(?FRAME_BODY, 0, <<>>))), - if ComputedSize == ?EMPTY_CONTENT_BODY_FRAME_SIZE -> - ok; - true -> - exit({incorrect_empty_content_body_frame_size, - ComputedSize, ?EMPTY_CONTENT_BODY_FRAME_SIZE}) - end. - -ensure_content_encoded(Content = #content{properties_bin = PropsBin}) - when PropsBin =/= 'none' -> - Content; -ensure_content_encoded(Content = #content{properties = Props}) -> - Content #content{properties_bin = rabbit_framing:encode_properties(Props)}. - -clear_encoded_content(Content = #content{properties_bin = none}) -> - Content; -clear_encoded_content(Content = #content{properties = none}) -> - %% Only clear when we can rebuild the properties later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_encoded_content(Content = #content{}) -> - Content#content{properties_bin = none}. diff --git a/src/rabbit_binary_parser.erl b/src/rabbit_binary_parser.erl deleted file mode 100644 index 506e87ec..00000000 --- a/src/rabbit_binary_parser.erl +++ /dev/null @@ -1,178 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_binary_parser). - --include("rabbit.hrl"). - --export([parse_table/1, parse_properties/2]). --export([ensure_content_decoded/1, clear_decoded_content/1]). - --import(lists). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(parse_table/1 :: (binary()) -> amqp_table()). --spec(parse_properties/2 :: ([amqp_property_type()], binary()) -> [any()]). --spec(ensure_content_decoded/1 :: (content()) -> decoded_content()). --spec(clear_decoded_content/1 :: (content()) -> undecoded_content()). - --endif. - -%%---------------------------------------------------------------------------- - -%% parse_table supports the AMQP 0-8/0-9 standard types, S, I, D, T -%% and F, as well as the QPid extensions b, d, f, l, s, t, x, and V. - -parse_table(<<>>) -> - []; -parse_table(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{NameString, Type, Value} | parse_table(Rest)]. - -parse_array(<<>>) -> - []; -parse_array(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{Type, Value} | parse_array(Rest)]. - -parse_field_value(<<"S", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {longstr, ValueString, Rest}; - -parse_field_value(<<"I", Value:32/signed, Rest/binary>>) -> - {signedint, Value, Rest}; - -parse_field_value(<<"D", Before:8/unsigned, After:32/unsigned, Rest/binary>>) -> - {decimal, {Before, After}, Rest}; - -parse_field_value(<<"T", Value:64/unsigned, Rest/binary>>) -> - {timestamp, Value, Rest}; - -parse_field_value(<<"F", VLen:32/unsigned, Table:VLen/binary, Rest/binary>>) -> - {table, parse_table(Table), Rest}; - -parse_field_value(<<"A", VLen:32/unsigned, Array:VLen/binary, Rest/binary>>) -> - {array, parse_array(Array), Rest}; - -parse_field_value(<<"b", Value:8/unsigned, Rest/binary>>) -> - {byte, Value, Rest}; - -parse_field_value(<<"d", Value:64/float, Rest/binary>>) -> - {double, Value, Rest}; - -parse_field_value(<<"f", Value:32/float, Rest/binary>>) -> - {float, Value, Rest}; - -parse_field_value(<<"l", Value:64/signed, Rest/binary>>) -> - {long, Value, Rest}; - -parse_field_value(<<"s", Value:16/signed, Rest/binary>>) -> - {short, Value, Rest}; - -parse_field_value(<<"t", Value:8/unsigned, Rest/binary>>) -> - {bool, (Value /= 0), Rest}; - -parse_field_value(<<"x", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {binary, ValueString, Rest}; - -parse_field_value(<<"V", Rest/binary>>) -> - {void, undefined, Rest}. - - -parse_properties([], _PropBin) -> - []; -parse_properties(TypeList, PropBin) -> - FlagCount = length(TypeList), - %% round up to the nearest multiple of 15 bits, since the 16th bit - %% in each short is a "continuation" bit. - FlagsLengthBytes = trunc((FlagCount + 14) / 15) * 2, - <> = PropBin, - <> = Flags, - parse_properties(0, TypeList, [], FirstShort, Remainder, Properties). - -parse_properties(_Bit, [], Acc, _FirstShort, - _Remainder, <<>>) -> - lists:reverse(Acc); -parse_properties(_Bit, [], _Acc, _FirstShort, - _Remainder, _LeftoverBin) -> - exit(content_properties_binary_overflow); -parse_properties(15, TypeList, Acc, _OldFirstShort, - <>, Properties) -> - parse_properties(0, TypeList, Acc, NewFirstShort, Remainder, Properties); -parse_properties(Bit, [Type | TypeListRest], Acc, FirstShort, - Remainder, Properties) -> - {Value, Rest} = - if (FirstShort band (1 bsl (15 - Bit))) /= 0 -> - parse_property(Type, Properties); - Type == bit -> {false , Properties}; - true -> {undefined, Properties} - end, - parse_properties(Bit + 1, TypeListRest, [Value | Acc], FirstShort, - Remainder, Rest). - -parse_property(shortstr, <>) -> - {String, Rest}; -parse_property(longstr, <>) -> - {String, Rest}; -parse_property(octet, <>) -> - {Int, Rest}; -parse_property(shortint, <>) -> - {Int, Rest}; -parse_property(longint, <>) -> - {Int, Rest}; -parse_property(longlongint, <>) -> - {Int, Rest}; -parse_property(timestamp, <>) -> - {Int, Rest}; -parse_property(bit, Rest) -> - {true, Rest}; -parse_property(table, <>) -> - {parse_table(Table), Rest}. - -ensure_content_decoded(Content = #content{properties = Props}) - when Props =/= 'none' -> - Content; -ensure_content_decoded(Content = #content{properties_bin = PropBin}) - when is_binary(PropBin) -> - Content#content{properties = rabbit_framing:decode_properties( - Content#content.class_id, PropBin)}. - -clear_decoded_content(Content = #content{properties = none}) -> - Content; -clear_decoded_content(Content = #content{properties_bin = none}) -> - %% Only clear when we can rebuild the properties later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_decoded_content(Content = #content{}) -> - Content#content{properties = none}. diff --git a/src/rabbit_capability.erl b/src/rabbit_capability.erl deleted file mode 100644 index cae713f9..00000000 --- a/src/rabbit_capability.erl +++ /dev/null @@ -1,365 +0,0 @@ --module(rabbit_capability). - - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --compile(export_all). - --record('delegate.create', {capability, command, content}). --record('delegate.create_ok', {forwarding_facet, revoking_facet}). --record('delegate.revoke', {capability}). --record('delegate.revoke_ok', {}). - -%% This is an experimental hack for the fact that the exchange.bind_ok and -%% queue.bind_ok are empty commands - all it does is to carry a securely -%% generated capability --record('secure.ok', {capability}). - -%% This is a new version of the basic.publish command that carries a -%% capability in the command - NB you *could* put this into the message -%% arguments but it makes the usage cmplicated and ambiguous --record('basic.publish2', {capability}). - --record(state, {caps = dict:new()}). - -test() -> - ok = exchange_declare_test(), - ok = bogus_intent_test(). - -%% This is a test case to for creating and revoking forwarding capabilites, -%% which follows the following steps: -%% -%% 1. There is a root capability to create exchanges; -%% 2. Root creates a delegate to this functionality and gives the forwarding -%% facet to Alice; -%% 3. Alice now has the capability C to a delegate that can execute the -%% exchange.declare command. To declare an exchange, Alice does the following: -%% * Sends an exchange.declare command as she would in a world without -%% * capabilities with the exception that she adds the capability C as an -%% * argument to the command; -%% * The channel detects the presence of the capability argument, -%% * resolves the delegate function and executes it with the -%% * exchange.declare command from Alice in situ; -%% * The result is returned to Alice; -%% 4. If Alice wants to delegate the ability to create exchanges to Bob, she -%% can either: -%% * Create a delegate that forwards to the delegate for which Alice -%% * has the capability C; -%% * Just give Bob the capability C; - -exchange_declare_test() -> - %% Create the root state - RootState = root_state(), - %% Assert that root can create an exchange - RootExchangeDeclare = #'exchange.declare'{arguments = [exchange_root]}, - {#'secure.ok'{}, State0} - = run_command(RootExchangeDeclare, RootState), - %% Create a delegate to create exchanges - {#'delegate.create_ok'{forwarding_facet = AlicesForward, - revoking_facet = RootsRevoke}, State1} - = run_command(#'delegate.create'{capability = delegate_create_root, - command = RootExchangeDeclare}, - State0), - %% Use the forwarding facet to create an exchange - AlicesExchangeDeclare = #'exchange.declare'{arguments = [AlicesForward]}, - {#'secure.ok'{}, State2} - = run_command(AlicesExchangeDeclare, State1), - %% Use the revoking facet to revoke the capability to create exchanges - RevocationByRoot = #'delegate.revoke'{capability = RootsRevoke}, - {#'delegate.revoke_ok'{}, State3} - = run_command(RevocationByRoot, State2), - %% Assert the forwarding facet no longer works - {access_denied, State4} - = run_command(AlicesExchangeDeclare, State3), - - %% ------------------------------------------------------------------- - %% Create a second delegate that forwards to the first - - {#'delegate.create_ok'{forwarding_facet = BobsForward, - revoking_facet = AlicesRevoke}, State5} - = run_command(#'delegate.create'{capability = delegate_create_root, - command = AlicesExchangeDeclare}, - State1), - %% Use the delegated forwarding facet to create an exchange - BobsExchangeDeclare = #'exchange.declare'{arguments = [BobsForward]}, - {#'secure.ok'{}, State6} - = run_command(BobsExchangeDeclare, State5), - %% Use the original revoking facet to revoke the capability to create - %% exchanges in a cascading fashion - {#'delegate.revoke_ok'{}, State7} - = run_command(RevocationByRoot, State6), - %% Assert the delegated forwarding facet no longer works - {access_denied, State8} - = run_command(BobsExchangeDeclare, State7), - - ok. - -%% This is a test case to for creating and forwarding capabilites on the -%% same exchange entity. This demonstrates how different delegates -%% encapsulate different intents in a way that is specified by the owner -%% of the underlying entity: -%% -%% 1. There is a root capability to create exchanges and bindings -%% as well as to publish messages; -%% 2. Root creates a delegate to these functionalities and gives -%% the forwarding facets to Alice; -%% 3. Alice creates an exchange that she would like to protect; -%% 4. Alice creates a delegate to allow Bob to bind queues to her exchange -%% and a delegate to allow Carol to publish messages to her exchange -%% 5. After this has been verified, Bob and Carol try to be sneaky with -%% the delegates they have been given. Each one of them tries to misuse -%% the capability to perform a different action to the delegate they -%% possess, i.e. Bob tries to send a message whilst Carol tries to bind -%% a queue to the exchange - they both find out that their respective -%% capabilities have been bound by intent :-) -%% -bogus_intent_test() -> - %% Create the root state - RootState = root_state(), - %% Assert that root can issue bind and publish commands - RootsBind = #'queue.bind'{arguments = [bind_root]}, - {#'secure.ok'{}, State0} - = run_command(RootsBind, RootState), - RootsPublish = #'basic.publish2'{capability = publish_root}, - {noreply, State0} = run_command(RootsPublish, #content{}, RootState), - - %% Create a delegate to create exchanges - RootExchangeDeclare = #'exchange.declare'{arguments = [exchange_root]}, - {#'delegate.create_ok'{forwarding_facet = AlicesExDecForward, - revoking_facet = RootsExDecRevoke}, State1} - = run_command(#'delegate.create'{capability = delegate_create_root, - command = RootExchangeDeclare}, - State0), - %% Use the forwarding facet to create an exchange - AlicesExDec = #'exchange.declare'{arguments = [AlicesExDecForward]}, - {#'secure.ok'{capability = AlicesExCap}, State2} - = run_command(AlicesExDec, State1), - - %% The important observation here is the Alice now has the capability to - %% whatever she wants with the exchange - so let's see her do something - %% useful with it - - %% Create a delegate to issue bind commands - {#'delegate.create_ok'{forwarding_facet = AlicesBindForward, - revoking_facet = RootsBindRevoke}, State3} - = run_command(#'delegate.create'{capability = delegate_create_root, - command = RootsBind}, - State2), - - %% Use the forwarding facet to bind something - AlicesBind = #'queue.bind'{arguments = [AlicesBindForward]}, - {#'secure.ok'{capability = AlicesBindCap}, State4} - = run_command(AlicesBind, State3), - - %% This is where it gets tricky - to be able to bind to an exchange, - %% Alice not only needs the capability to bind, but she also requires - %% the capability to the exchange object that she is binding to........ - - %% The bind command is a join between an exchange and a queue - BobsBindDelegate = #'queue.bind'{queue = undefined, - routing_key = undefined, - %% undefined will be filled in by the compiler - %% just making the destinction between trusted - %% and untrusted clear - exchange = AlicesExCap, - arguments = [AlicesBindForward]}, - {#'delegate.create_ok'{forwarding_facet = BobsBindForward, - revoking_facet = AlicesBindRevoke}, State5} - = run_command(#'delegate.create'{capability = delegate_create_root, - command = BobsBindDelegate}, - State4), - - BobsBind = #'queue.bind'{queue = <<"untrusted">>, - routing_key = <<"also untrusted">>, - arguments = [BobsBindForward]}, - {#'secure.ok'{capability = BobsBindCap}, State6} - = run_command(BobsBindDelegate, State5), - - %% Create a delegate to issue publish commands - {#'delegate.create_ok'{forwarding_facet = AlicesPublishForward, - revoking_facet = RootsPublishRevoke}, State7} - = run_command(#'delegate.create'{capability = delegate_create_root, - command = RootsPublish}, - State6), - - %% Create a delegate to give to Carol so that she can send messages - CarolsPublishDelegate - = #'basic.publish2'{capability = AlicesPublishForward}, - - {#'delegate.create_ok'{forwarding_facet = CarolsPublishForward, - revoking_facet = AlicesPublishRevoke}, State8} - = run_command(#'delegate.create'{capability = delegate_create_root, - command = CarolsPublishDelegate}, - State7), - - %% Then have Carol publish a message - CarolsPublish = #'basic.publish2'{capability = CarolsPublishForward}, - {noreply, _} = run_command(CarolsPublish, #content{}, State8), - - %% Carol then tries to bind a queue to the exchange that she *knows* about - CarolsBind = #'queue.bind'{queue = <<"untrusted">>, - routing_key = <<"also untrusted">>, - arguments = [CarolsPublishForward]}, - {access_denied, _} = run_command(CarolsBind, State8), - - %% Alternatively let Bob try to publish a message to - %% the exchange that he *knows* about - BobsPublish = #'basic.publish2'{capability = BobsBindForward}, - {access_denied, _} = run_command(BobsPublish, #content{}, State8), - - ok. - -%% --------------------------------------------------------------------------- -%% These functions intercept the AMQP command set - basically this is a typed -%% wrapper around the underlying execute_delegate/3 function -%% --------------------------------------------------------------------------- - -run_command(Command = #'exchange.declare'{arguments = [Cap|_]}, State) -> - execute_delegate(Command, Cap, State); - -run_command(Command = #'queue.bind'{arguments = [Cap|_]}, State) -> - execute_delegate(Command, Cap, State); - -run_command(Command = #'delegate.create'{capability = Cap}, State) -> - execute_delegate(Command, Cap, State); - -run_command(Command = #'delegate.revoke'{capability = Cap}, State) -> - execute_delegate(Command, Cap, State). - -run_command(Command = #'basic.publish2'{capability = Cap}, Content, State) -> - execute_delegate(Command, Content, Cap, State). - -%% --------------------------------------------------------------------------- -%% Internal plumbing -%% --------------------------------------------------------------------------- -execute_delegate(Command, Cap, State) -> - case resolve_capability(Cap, State) of - {ok, Fun} -> case catch Fun(Command, State) of - %% Put this in case an f/3 delegate is resolved - {'EXIT', _} -> {access_denied, State}; - X -> X - end; - error -> {access_denied, State} - end. - -execute_delegate(Command, Content, Cap, State) -> - case resolve_capability(Cap, State) of - {ok, Fun} -> case catch Fun(Command, Content, State) of - %% Put this in case an f/2 delegate is resolved - {'EXIT', _} -> {access_denied, State}; - X -> X - end; - error -> {access_denied, State} - end. - -resolve_capability(Capability, #state{caps = Caps}) -> - dict:find(Capability, Caps). - -add_capability(Capability, Delegate, State = #state{caps = Caps}) -> - State#state{ caps = dict:store(Capability, Delegate, Caps) }. - -remove_capability(Capability, State = #state{caps = Caps}) -> - State#state{ caps = dict:erase(Capability, Caps) }. - -uuid() -> - {A, B, C} = now(), - <>. - -%% --------------------------------------------------------------------------- -%% This is how the chains of delegation are rooted - essentially this is known -%% set of root capabilities that the super user would have to configure the -%% system with -%% --------------------------------------------------------------------------- - -root_state() -> - State0 = #state{}, - %% The root capability to create exchanges - State1 = add_capability(exchange_root, - fun(Command = #'exchange.declare'{}, State) -> - handle_method(Command, State) - end, State0), - %% The root capability to create delegates - State2 = add_capability(delegate_create_root, - fun(Command = #'delegate.create'{}, State) -> - handle_method(Command, State) - end, State1), - %% The root capability to bind queues to exchanges - State3 = add_capability(bind_root, - fun(Command = #'queue.bind'{}, State) -> - handle_method(Command, State) - end, State2), - %% The root capability to create publish messages - State4 = add_capability(publish_root, - fun(Command = #'basic.publish2'{}, - Content, State) -> - handle_method(Command, Content, State) - end, State3), - State4. - - -%% --------------------------------------------------------------------------- -%% The internal API, which has *little* knowledge of capabilities. -%% This is roughly analogous the current channel API in Rabbit. -%% --------------------------------------------------------------------------- - -handle_method(#'delegate.create'{capability = Cap, - command = Command}, State) -> - true = is_valid(Command), - ForwardCapability = uuid(), - RevokeCapability = uuid(), - - ForwardingFacet = - case contains_content(Command) of - false -> - fun(_Command, _State) -> - %% If the command types do not match up, then throw an error - if - element(1, _Command) =:= element(1, Command) -> - run_command(Command, _State); - true -> - exit(command_mismatch) - end - end; - %% This is copy and paste, could be better factored :-( - true -> - fun(_Command, _Content, _State) -> - %% If the command types do not match up, then throw an error - if - element(1, _Command) =:= element(1, Command) -> - run_command(Command, _Content, _State); - true -> - exit(command_mismatch) - end - end - end, - - RevokingFacet = fun(_Command, _State) -> - NewState = remove_capability(ForwardCapability, - _State), - {#'delegate.revoke_ok'{}, NewState} - end, - - NewState = add_capability(ForwardCapability, ForwardingFacet, State), - NewState2 = add_capability(RevokeCapability, RevokingFacet, NewState), - {#'delegate.create_ok'{forwarding_facet = ForwardCapability, - revoking_facet = RevokeCapability}, NewState2}; - -handle_method(Command = #'exchange.declare'{}, State) -> - Cap = uuid(), %% TODO Do something with this - {#'secure.ok'{capability = Cap}, State}; - -handle_method(Command = #'queue.bind'{queue = Q, - exchange = X, - routing_key = K}, State) -> - Cap = uuid(), %% TODO Do something with this - {#'secure.ok'{capability = Cap}, State}. - -handle_method(Command = #'basic.publish2'{}, Content, State) -> - {noreply, State}. - -contains_content(#'basic.publish2'{}) -> true; -contains_content(_) -> false. - -is_valid(_Command) -> true. - diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl deleted file mode 100644 index e69de29b..00000000 diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl deleted file mode 100644 index 1da64c25..00000000 --- a/src/rabbit_control.erl +++ /dev/null @@ -1,442 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_control). --include("rabbit.hrl"). - --export([start/0, stop/0, action/4, set_queue_storage_mode_pin/3]). - --record(params, {quiet, node, command, args}). - --define(RPC_TIMEOUT, infinity). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(action/4 :: (atom(), erlang_node(), [string()], - fun ((string(), [any()]) -> 'ok')) -> 'ok'). --spec(set_queue_storage_mode_pin/3 :: - (binary(), binary(), boolean()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - {ok, [[NodeNameStr|_]|_]} = init:get_argument(nodename), - NodeName = list_to_atom(NodeNameStr), - FullCommand = init:get_plain_arguments(), - #params{quiet = Quiet, node = Node, command = Command, args = Args} = - parse_args(FullCommand, #params{quiet = false, - node = rabbit_misc:localnode(NodeName)}), - Inform = case Quiet of - true -> fun(_Format, _Args1) -> ok end; - false -> fun(Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end - end, - %% The reason we don't use a try/catch here is that rpc:call turns - %% thrown errors into normal return values - case catch action(Command, Node, Args, Inform) of - ok -> - case Quiet of - true -> ok; - false -> io:format("...done.~n") - end, - halt(); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - error("invalid command '~s'", - [lists:flatten( - rabbit_misc:intersperse( - " ", [atom_to_list(Command) | Args]))]), - usage(); - {error, Reason} -> - error("~p", [Reason]), - halt(2); - {badrpc, Reason} -> - error("unable to connect to node ~w: ~w", [Node, Reason]), - print_badrpc_diagnostics(Node), - halt(2); - Other -> - error("~p", [Other]), - halt(2) - end. - -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - -error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - -print_badrpc_diagnostics(Node) -> - fmt_stderr("diagnostics:", []), - NodeHost = rabbit_misc:nodehost(Node), - case net_adm:names(NodeHost) of - {error, EpmdReason} -> - fmt_stderr("- unable to connect to epmd on ~s: ~w", - [NodeHost, EpmdReason]); - {ok, NamePorts} -> - fmt_stderr("- nodes and their ports on ~s: ~p", - [NodeHost, [{list_to_atom(Name), Port} || - {Name, Port} <- NamePorts]]) - end, - fmt_stderr("- current node: ~w", [node()]), - case init:get_argument(home) of - {ok, [[Home]]} -> fmt_stderr("- current node home dir: ~s", [Home]); - Other -> fmt_stderr("- no current node home dir: ~p", [Other]) - end, - fmt_stderr("- current node cookie hash: ~s", [rabbit_misc:cookie_hash()]), - ok. - -parse_args(["-n", NodeS | Args], Params) -> - Node = case lists:member($@, NodeS) of - true -> list_to_atom(NodeS); - false -> rabbit_misc:localnode(list_to_atom(NodeS)) - end, - parse_args(Args, Params#params{node = Node}); -parse_args(["-q" | Args], Params) -> - parse_args(Args, Params#params{quiet = true}); -parse_args([Command | Args], Params) -> - Params#params{command = list_to_atom(Command), args = Args}; -parse_args([], _) -> - usage(). - -stop() -> - ok. - -usage() -> - io:format("Usage: rabbitmqctl [-q] [-n ] [ ...] - -Available commands: - - stop - stops the RabbitMQ application and halts the node - stop_app - stops the RabbitMQ application, leaving the node running - start_app - starts the RabbitMQ application on an already-running node - reset - resets node to default configuration, deleting all data - force_reset - cluster ... - status - rotate_logs [Suffix] - - add_user - delete_user - change_password - list_users - - add_vhost - delete_vhost - list_vhosts - - set_permissions [-p ] - clear_permissions [-p ] - list_permissions [-p ] - list_user_permissions - - list_queues [-p ] [ ...] - list_exchanges [-p ] [ ...] - list_bindings [-p ] - list_connections [ ...] - - pin_queue_to_disk [-p ] - unpin_queue_from_disk [-p ] - -Quiet output mode is selected with the \"-q\" flag. Informational messages -are suppressed when quiet mode is in effect. - - should be the name of the master node of the RabbitMQ -cluster. It defaults to the node named \"rabbit\" on the local -host. On a host named \"server.example.com\", the master node will -usually be rabbit@server (unless RABBITMQ_NODENAME has been set to -some non-default value at broker startup time). The output of hostname --s is usually the correct suffix to use after the \"@\" sign. - -The list_queues, list_exchanges and list_bindings commands accept an optional -virtual host parameter for which to display results. The default value is \"/\". - - must be a member of the list [name, durable, auto_delete, -arguments, node, messages_ready, messages_unacknowledged, messages_uncommitted, -messages, acks_uncommitted, consumers, transactions, memory, storage_mode, -pinned]. The default is to display name and (number of) messages. - - must be a member of the list [name, type, durable, -auto_delete, arguments]. The default is to display name and type. - -The output format for \"list_bindings\" is a list of rows containing -exchange name, routing key, queue name and arguments, in that order. - - must be a member of the list [node, address, port, -peer_address, peer_port, state, channels, user, vhost, timeout, frame_max, -recv_oct, recv_cnt, send_oct, send_cnt, send_pend]. The default is to display -user, peer_address, peer_port and state. - -pin_queue_to_disk will force a queue to be in disk storage mode. -unpin_queue_from_disk will permit a queue that has been pinned to disk storage -mode to be converted to mixed mode should there be enough memory available. -"), - halt(1). - -action(stop, Node, [], Inform) -> - Inform("Stopping and halting node ~p", [Node]), - call(Node, {rabbit, stop_and_halt, []}); - -action(stop_app, Node, [], Inform) -> - Inform("Stopping node ~p", [Node]), - call(Node, {rabbit, stop, []}); - -action(start_app, Node, [], Inform) -> - Inform("Starting node ~p", [Node]), - call(Node, {rabbit, start, []}); - -action(reset, Node, [], Inform) -> - Inform("Resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, reset, []}); - -action(force_reset, Node, [], Inform) -> - Inform("Forcefully resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, force_reset, []}); - -action(cluster, Node, ClusterNodeSs, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); - -action(status, Node, [], Inform) -> - Inform("Status of node ~p", [Node]), - case call(Node, {rabbit, status, []}) of - {badrpc, _} = Res -> Res; - Res -> io:format("~p~n", [Res]), - ok - end; - -action(rotate_logs, Node, [], Inform) -> - Inform("Reopening logs for node ~p", [Node]), - call(Node, {rabbit, rotate_logs, [""]}); -action(rotate_logs, Node, Args = [Suffix], Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), - call(Node, {rabbit, rotate_logs, Args}); - -action(add_user, Node, Args = [Username, _Password], Inform) -> - Inform("Creating user ~p", [Username]), - call(Node, {rabbit_access_control, add_user, Args}); - -action(delete_user, Node, Args = [_Username], Inform) -> - Inform("Deleting user ~p", Args), - call(Node, {rabbit_access_control, delete_user, Args}); - -action(change_password, Node, Args = [Username, _Newpassword], Inform) -> - Inform("Changing password for user ~p", [Username]), - call(Node, {rabbit_access_control, change_password, Args}); - -action(list_users, Node, [], Inform) -> - Inform("Listing users", []), - display_list(call(Node, {rabbit_access_control, list_users, []})); - -action(add_vhost, Node, Args = [_VHostPath], Inform) -> - Inform("Creating vhost ~p", Args), - call(Node, {rabbit_access_control, add_vhost, Args}); - -action(delete_vhost, Node, Args = [_VHostPath], Inform) -> - Inform("Deleting vhost ~p", Args), - call(Node, {rabbit_access_control, delete_vhost, Args}); - -action(list_vhosts, Node, [], Inform) -> - Inform("Listing vhosts", []), - display_list(call(Node, {rabbit_access_control, list_vhosts, []})); - -action(list_user_permissions, Node, Args = [_Username], Inform) -> - Inform("Listing permissions for user ~p", Args), - display_list(call(Node, {rabbit_access_control, list_user_permissions, - Args})); - -action(list_queues, Node, Args, Inform) -> - Inform("Listing queues", []), - {VHostArg, RemainingArgs} = parse_vhost_flag_bin(Args), - ArgAtoms = list_replace(node, pid, - default_if_empty(RemainingArgs, [name, messages])), - display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_exchanges, Node, Args, Inform) -> - Inform("Listing exchanges", []), - {VHostArg, RemainingArgs} = parse_vhost_flag_bin(Args), - ArgAtoms = default_if_empty(RemainingArgs, [name, type]), - display_info_list(rpc_call(Node, rabbit_exchange, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_bindings, Node, Args, Inform) -> - Inform("Listing bindings", []), - {VHostArg, _} = parse_vhost_flag_bin(Args), - InfoKeys = [exchange_name, routing_key, queue_name, args], - display_info_list( - [lists:zip(InfoKeys, tuple_to_list(X)) || - X <- rpc_call(Node, rabbit_exchange, list_bindings, [VHostArg])], - InfoKeys), - ok; - -action(list_connections, Node, Args, Inform) -> - Inform("Listing connections", []), - ArgAtoms = list_replace(node, pid, - default_if_empty(Args, [user, peer_address, - peer_port, state])), - display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, - [ArgAtoms]), - ArgAtoms); - -action(Command, Node, Args, Inform) -> - {VHost, RemainingArgs} = parse_vhost_flag(Args), - action(Command, Node, VHost, RemainingArgs, Inform). - -action(pin_queue_to_disk, Node, VHost, [Queue], Inform) -> - Inform("Pinning queue ~p in vhost ~p to disk", - [Queue, VHost]), - set_queue_storage_mode_pin(Node, VHost, Queue, true); - -action(unpin_queue_from_disk, Node, VHost, [Queue], Inform) -> - Inform("Unpinning queue ~p in vhost ~p from disk", - [Queue, VHost]), - set_queue_storage_mode_pin(Node, VHost, Queue, false); - -action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_access_control, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, VHost, [Username], Inform) -> - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_access_control, clear_permissions, [Username, VHost]}); - -action(list_permissions, Node, VHost, [], Inform) -> - Inform("Listing permissions in vhost ~p", [VHost]), - display_list(call(Node, {rabbit_access_control, list_vhost_permissions, - [VHost]})). - -set_queue_storage_mode_pin(Node, VHost, Queue, Disk) -> - VHostPath = list_to_binary(VHost), - QBin = list_to_binary(Queue), - rpc_call(Node, rabbit_control, set_queue_storage_mode_pin, - [VHostPath, QBin, Disk]). - -set_queue_storage_mode_pin(VHostPath, QBin, Disk) -> - rabbit_amqqueue:with( - rabbit_misc:r(VHostPath, queue, QBin), - fun(Q) -> rabbit_amqqueue:set_storage_mode_pin(Q, Disk) end). - -parse_vhost_flag(Args) when is_list(Args) -> - case Args of - ["-p", VHost | RemainingArgs] -> - {VHost, RemainingArgs}; - RemainingArgs -> - {"/", RemainingArgs} - end. - -parse_vhost_flag_bin(Args) -> - {VHost, RemainingArgs} = parse_vhost_flag(Args), - {list_to_binary(VHost), RemainingArgs}. - -default_if_empty(List, Default) when is_list(List) -> - if List == [] -> - Default; - true -> - [list_to_atom(X) || X <- List] - end. - -display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach(fun (Result) -> display_row([format_info_item(X, Result) || - X <- InfoItemKeys]) - end, Results), - ok; -display_info_list(Other, _) -> - Other. - -display_row(Row) -> - io:fwrite(lists:flatten(rabbit_misc:intersperse("\t", Row))), - io:nl(). - -format_info_item(Key, Items) -> - case proplists:get_value(Key, Items) of - #resource{name = Name} -> - escape(Name); - Value when Key =:= address; Key =:= peer_address andalso - is_tuple(Value) -> - inet_parse:ntoa(Value); - Value when is_pid(Value) -> - atom_to_list(node(Value)); - Value when is_binary(Value) -> - escape(Value); - Value when is_atom(Value) -> - escape(atom_to_list(Value)); - Value -> - io_lib:format("~w", [Value]) - end. - -display_list(L) when is_list(L) -> - lists:foreach(fun (I) when is_binary(I) -> - io:format("~s~n", [escape(I)]); - (I) when is_tuple(I) -> - display_row([escape(V) - || V <- tuple_to_list(I)]) - end, - lists:sort(L)), - ok; -display_list(Other) -> Other. - -call(Node, {Mod, Fun, Args}) -> - rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). - -rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). - -%% escape does C-style backslash escaping of non-printable ASCII -%% characters. We don't escape characters above 127, since they may -%% form part of UTF-8 strings. - -escape(Bin) when binary(Bin) -> - escape(binary_to_list(Bin)); -escape(L) when is_list(L) -> - escape_char(lists:reverse(L), []). - -escape_char([$\\ | T], Acc) -> - escape_char(T, [$\\, $\\ | Acc]); -escape_char([X | T], Acc) when X > 32, X /= 127 -> - escape_char(T, [X | Acc]); -escape_char([X | T], Acc) -> - escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), - $0 + (X band 7) | Acc]); -escape_char([], Acc) -> - Acc. - -list_replace(Find, Replace, List) -> - [case X of Find -> Replace; _ -> X end || X <- List]. - diff --git a/src/rabbit_dialyzer.erl b/src/rabbit_dialyzer.erl deleted file mode 100644 index 23e6fc44..00000000 --- a/src/rabbit_dialyzer.erl +++ /dev/null @@ -1,91 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_dialyzer). --include("rabbit.hrl"). - --export([create_basic_plt/1, add_to_plt/2, dialyze_files/2, halt_with_code/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(create_basic_plt/1 :: (string()) -> 'ok'). --spec(add_to_plt/2 :: (string(), string()) -> 'ok'). --spec(dialyze_files/2 :: (string(), string()) -> 'ok'). --spec(halt_with_code/1 :: (atom()) -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -create_basic_plt(BasicPltPath) -> - OptsRecord = dialyzer_options:build( - [{analysis_type, plt_build}, - {output_plt, BasicPltPath}, - {files_rec, otp_apps_dependencies_paths()}]), - dialyzer_cl:start(OptsRecord), - ok. - -add_to_plt(PltPath, FilesString) -> - {ok, Files} = regexp:split(FilesString, " "), - DialyzerWarnings = dialyzer:run([{analysis_type, plt_add}, - {init_plt, PltPath}, - {output_plt, PltPath}, - {files, Files}]), - print_warnings(DialyzerWarnings), - ok. - -dialyze_files(PltPath, ModifiedFiles) -> - {ok, Files} = regexp:split(ModifiedFiles, " "), - DialyzerWarnings = dialyzer:run([{init_plt, PltPath}, - {files, Files}]), - case DialyzerWarnings of - [] -> io:format("~nOk~n"), - ok; - _ -> io:format("~nFAILED with the following warnings:~n"), - print_warnings(DialyzerWarnings), - fail - end. - -print_warnings(Warnings) -> - [io:format("~s", [dialyzer:format_warning(W)]) || W <- Warnings], - io:format("~n"), - ok. - -otp_apps_dependencies_paths() -> - [code:lib_dir(App, ebin) || - App <- [kernel, stdlib, sasl, mnesia, os_mon, ssl, eunit, tools]]. - -halt_with_code(ok) -> - halt(); -halt_with_code(fail) -> - halt(1). diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl deleted file mode 100644 index 9651ae12..00000000 --- a/src/rabbit_error_logger.erl +++ /dev/null @@ -1,88 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_error_logger). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(LOG_EXCH_NAME, <<"amq.rabbitmq.log">>). - --behaviour(gen_event). - --export([boot/0]). - --export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, handle_info/2]). - -boot() -> - {ok, DefaultVHost} = application:get_env(default_vhost), - ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). - -init([DefaultVHost]) -> - #exchange{} = rabbit_exchange:declare( - rabbit_misc:r(DefaultVHost, exchange, ?LOG_EXCH_NAME), - rabbit_exchange_type_topic, true, false, []), - {ok, #resource{virtual_host = DefaultVHost, - kind = exchange, - name = ?LOG_EXCH_NAME}}. - -terminate(_Arg, _State) -> - terminated_ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State) -> - ok = publish(Kind, Format, Data, State), - {ok, State}; -handle_event(_Event, State) -> - {ok, State}. - -handle_info(_Info, State) -> - {ok, State}. - -publish(error, Format, Data, State) -> - publish1(<<"error">>, Format, Data, State); -publish(warning_msg, Format, Data, State) -> - publish1(<<"warning">>, Format, Data, State); -publish(info_msg, Format, Data, State) -> - publish1(<<"info">>, Format, Data, State); -publish(_Other, _Format, _Data, _State) -> - ok. - -publish1(RoutingKey, Format, Data, LogExch) -> - {ok, _RoutingRes, _DeliveredQPids} = - rabbit_basic:publish(LogExch, RoutingKey, false, false, none, - #'P_basic'{content_type = <<"text/plain">>}, - list_to_binary(io_lib:format(Format, Data))), - ok. diff --git a/src/rabbit_error_logger_file_h.erl b/src/rabbit_error_logger_file_h.erl deleted file mode 100644 index 9a9220b5..00000000 --- a/src/rabbit_error_logger_file_h.erl +++ /dev/null @@ -1,82 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_error_logger_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, code_change/3]). - -%% rabbit_error_logger_file_h is a wrapper around the error_logger_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers in log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " ++ - "log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without performing -%% log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(File). - -handle_event(Event, State) -> - error_logger_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - error_logger_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - error_logger_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - error_logger_file_h:terminate(Reason, State). - -code_change(OldVsn, State, Extra) -> - error_logger_file_h:code_change(OldVsn, State, Extra). diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl deleted file mode 100644 index 428b6669..00000000 --- a/src/rabbit_exchange.erl +++ /dev/null @@ -1,665 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([recover/0, declare/5, lookup/1, lookup_or_die/1, - list/1, info/1, info/2, info_all/1, info_all/2, - simple_publish/6, simple_publish/3, - route/3]). --export([add_binding/4, delete_binding/4, list_bindings/1]). --export([delete/2]). --export([delete_queue_bindings/1, delete_transient_queue_bindings/1]). --export([check_type/1, assert_type/2]). - -%% EXTENDED API --export([list_exchange_bindings/1]). --export([list_queue_bindings/1]). - --import(mnesia). --import(sets). --import(lists). --import(regexp). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(publish_res() :: {'ok', [pid()]} | - not_found() | {'error', 'unroutable' | 'not_delivered'}). --type(bind_res() :: 'ok' | {'error', - 'queue_not_found' | - 'exchange_not_found' | - 'exchange_and_queue_not_found'}). --spec(recover/0 :: () -> 'ok'). --spec(declare/5 :: (exchange_name(), exchange_type(), boolean(), boolean(), - amqp_table()) -> exchange()). --spec(check_type/1 :: (binary()) -> atom()). --spec(assert_type/2 :: (exchange(), atom()) -> 'ok'). --spec(lookup/1 :: (exchange_name()) -> {'ok', exchange()} | not_found()). --spec(lookup_or_die/1 :: (exchange_name()) -> exchange()). --spec(list/1 :: (vhost()) -> [exchange()]). --spec(info/1 :: (exchange()) -> [info()]). --spec(info/2 :: (exchange(), [info_key()]) -> [info()]). --spec(info_all/1 :: (vhost()) -> [[info()]]). --spec(info_all/2 :: (vhost(), [info_key()]) -> [[info()]]). --spec(simple_publish/6 :: - (bool(), bool(), exchange_name(), routing_key(), binary(), binary()) -> - publish_res()). --spec(simple_publish/3 :: (bool(), bool(), message()) -> publish_res()). --spec(route/3 :: (exchange(), routing_key(), decoded_content()) -> [pid()]). --spec(add_binding/4 :: - (exchange_name(), queue_name(), routing_key(), amqp_table()) -> - bind_res() | {'error', 'durability_settings_incompatible'}). --spec(delete_binding/4 :: - (exchange_name(), queue_name(), routing_key(), amqp_table()) -> - bind_res() | {'error', 'binding_not_found'}). --spec(list_bindings/1 :: (vhost()) -> - [{exchange_name(), queue_name(), routing_key(), amqp_table()}]). --spec(delete_queue_bindings/1 :: (queue_name()) -> 'ok'). --spec(delete_transient_queue_bindings/1 :: (queue_name()) -> 'ok'). --spec(delete/2 :: (exchange_name(), boolean()) -> - 'ok' | not_found() | {'error', 'in_use'}). --spec(list_queue_bindings/1 :: (queue_name()) -> - [{exchange_name(), routing_key(), amqp_table()}]). --spec(list_exchange_bindings/1 :: (exchange_name()) -> - [{queue_name(), routing_key(), amqp_table()}]). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [name, type, durable, auto_delete, arguments]. -%% Retry indefinitely. This requires that the exchange type hooks -%% should themselves time out, and throw an error on doing so. --define(MAX_RETRIES, infinity). - -recover() -> - ok = rabbit_misc:table_foreach( - fun(Exchange) -> ok = mnesia:write(rabbit_exchange, - Exchange, write) - end, rabbit_durable_exchange), - ok = rabbit_misc:table_foreach( - fun(Route) -> {_, ReverseRoute} = route_with_reverse(Route), - ok = mnesia:write(rabbit_route, - Route, write), - ok = mnesia:write(rabbit_reverse_route, - ReverseRoute, write) - end, rabbit_durable_route). - -%% The argument is a thunk that will abort the current attempt, -%% leading mnesia to retry. -retrying_transaction(Func1) -> - case mnesia:sync_transaction( - Func1, [(fun () -> - exit({aborted, erlang:make_tuple(6, cyclic)}) - end)], ?MAX_RETRIES) of - {atomic, Result} -> Result; - {aborted, nomore} -> - rabbit_misc:protocol_error( - internal_error, "exhausted retries for transaction", []) - end. - -declare(ExchangeName, Type, Durable, AutoDelete, Args) -> - Exchange = #exchange{name = ExchangeName, - type = Type, - durable = Durable, - auto_delete = AutoDelete, -<<<<<<< local - arguments = Args}, - ok = Type:declare(Exchange), - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_exchange, ExchangeName}) of - [] -> ok = mnesia:write(rabbit_exchange, Exchange, write), - if Durable -> - ok = mnesia:write(rabbit_durable_exchange, - Exchange, write); - true -> ok - end, - Exchange; - [ExistingX] -> ExistingX - end - end). -======= - arguments = Args, - state = creating}, - case retrying_transaction( - fun (Retry) -> - case mnesia:wread({rabbit_exchange, ExchangeName}) of - [] -> ok = mnesia:write(rabbit_exchange, Exchange, write), - %io:format("New exchange ~p~n", [Exchange]), - {new, Exchange}; - [ExistingX = #exchange{ state = complete }] -> - %io:format("Existing exchange ~p~n", [ExistingX]), - {existing, ExistingX}; - [UncommittedX] -> - %io:format("Incomplete exchange ~p~n", [UncommittedX]), - Retry() - end - end) of - {existing, X} -> X; - {new, X} -> - NewExchange = X#exchange{ state = complete }, - try - ok = Type:init(NewExchange) - catch - _:Err -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - mnesia:delete(rabbit_exchange, ExchangeName, write) end), - throw(Err) - end, - rabbit_misc:execute_mnesia_transaction( - fun () -> - %io:format("Completed exchange ~p~n", [NewExchange]), - mnesia:write(rabbit_exchange, NewExchange, write), - if Durable -> ok = mnesia:write(rabbit_durable_exchange, - NewExchange, write); - true -> ok - end - end), - NewExchange - end. ->>>>>>> other - -typename_to_plugin_module(T) -> - case rabbit_exchange_type:lookup_module(T) of - {ok, Module} -> - Module; - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "invalid exchange type '~s'", [T]) - end. - -plugin_module_to_typename(M) -> - {ok, TypeName} = rabbit_exchange_type:lookup_name(M), - TypeName. - -check_type(T) -> - Module = typename_to_plugin_module(T), - case catch Module:description() of - {'EXIT', {undef, [{_, description, []} | _]}} -> - rabbit_misc:protocol_error( - command_invalid, "invalid exchange type '~s'", [T]); - {'EXIT', _} -> - rabbit_misc:protocol_error( - command_invalid, "problem loading exchange type '~s'", [T]); - _ -> - Module - end. - -assert_type(#exchange{ type = ActualType }, RequiredType) - when ActualType == RequiredType -> - ok; -assert_type(#exchange{ name = Name, type = ActualType }, RequiredType) -> - rabbit_misc:protocol_error( - not_allowed, "cannot redeclare ~s of type '~s' with type '~s'", - [rabbit_misc:rs(Name), - plugin_module_to_typename(ActualType), - plugin_module_to_typename(RequiredType)]). - -lookup(Name) -> - case rabbit_misc:dirty_read({rabbit_exchange, Name}) of - Res = {ok, #exchange{ state = State }} when State /= creating -> Res; - _ -> {error, not_found} - end. - -lookup_or_die(Name) -> - case lookup(Name) of - {ok, X} -> X; - {error, not_found} -> - rabbit_misc:protocol_error( - not_found, "no ~s", [rabbit_misc:rs(Name)]) - end. - -list(VHostPath) -> - [X || X = #exchange{ state = State } <- - mnesia:dirty_match_object( - rabbit_exchange, - #exchange{name = rabbit_misc:r(VHostPath, exchange), - _ = '_'}), - State /= creating]. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, X) -> [{Item, i(Item, X)} || Item <- Items]. - -i(name, #exchange{name = Name}) -> Name; -i(type, #exchange{type = Type}) -> plugin_module_to_typename(Type); -i(durable, #exchange{durable = Durable}) -> Durable; -i(auto_delete, #exchange{auto_delete = AutoDelete}) -> AutoDelete; -i(arguments, #exchange{arguments = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(X = #exchange{}) -> infos(?INFO_KEYS, X). - -info(X = #exchange{}, Items) -> infos(Items, X). - -info_all(VHostPath) -> map(VHostPath, fun (X) -> info(X) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (X) -> info(X, Items) end). - -%% Usable by Erlang code that wants to publish messages. -simple_publish(Mandatory, Immediate, ExchangeName, RoutingKeyBin, - ContentTypeBin, BodyBin) -> - {ClassId, _MethodId} = rabbit_framing:method_id('basic.publish'), - Content = #content{class_id = ClassId, - properties = #'P_basic'{content_type = ContentTypeBin}, - properties_bin = none, - payload_fragments_rev = [BodyBin]}, - Message = #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKeyBin, - content = Content, - persistent_key = none}, - simple_publish(Mandatory, Immediate, Message). - -<<<<<<< local -publish(X, Seen, Delivery = #delivery{ - message = #basic_message{routing_key = RK, content = C}}) -> - case rabbit_router:deliver(route(X, RK, C), Delivery) of - content = Content}) -> - case lookup(ExchangeName) of - {ok, Exchange} -> - QPids = route(Exchange, RoutingKey, Content), - rabbit_router:deliver(QPids, Mandatory, Immediate, - none, Message); - {error, Error} -> {error, Error} -======= -publish(X = #exchange{type = Type}, Seen, Delivery) -> - case Type:publish(X, Delivery) of - {_, []} = R -> - #exchange{name = XName, arguments = Args} = X, - case rabbit_misc:r_arg(XName, exchange, Args, - <<"alternate-exchange">>) of - undefined -> - R; - AName -> - NewSeen = [XName | Seen], - case lists:member(AName, NewSeen) of - true -> - R; - false -> - case lookup(AName) of - {ok, AX} -> - publish(AX, NewSeen, Delivery); - {error, not_found} -> - rabbit_log:warning( - "alternate exchange for ~s " - "does not exist: ~s", - [rabbit_misc:rs(XName), - rabbit_misc:rs(AName)]), - R - end - end - end; - R -> - R ->>>>>>> other - end. - -%% TODO: Should all of the route and binding management not be -%% refactored to its own module, especially seeing as unbind will have -%% to be implemented for 0.91 ? - -delete_exchange_bindings(ExchangeName) -> - [begin - ok = mnesia:delete_object(rabbit_reverse_route, - reverse_route(Route), write), - ok = delete_forward_routes(Route) - end || Route <- mnesia:match_object( - rabbit_route, - #route{binding = #binding{exchange_name = ExchangeName, - _ = '_'}}, - write)], - ok. - -delete_queue_bindings(QueueName, Retry) -> - delete_queue_bindings(QueueName, fun delete_forward_routes/1). - -delete_transient_queue_bindings(QueueName, Retry) -> - delete_queue_bindings(QueueName, fun delete_transient_forward_routes/1). - -delete_queue_bindings(QueueName, FwdDeleteFun, Retry) -> - Exchanges = exchanges_for_queue(QueueName), - [begin - ok = FwdDeleteFun(reverse_route(Route)), - ok = mnesia:delete_object(rabbit_reverse_route, Route, write) - end || Route <- mnesia:match_object( - rabbit_reverse_route, - reverse_route( - #route{binding = #binding{queue_name = QueueName, - _ = '_'}}), - write)], - [begin - [X] = mnesia:read({rabbit_exchange, ExchangeName}), - ok = maybe_auto_delete(X) - end || ExchangeName <- Exchanges], - ok. - -delete_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write), - ok = mnesia:delete_object(rabbit_durable_route, Route, write). - -delete_transient_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write). - -exchanges_for_queue(QueueName) -> - MatchHead = reverse_route( - #route{binding = #binding{exchange_name = '$1', - queue_name = QueueName, - _ = '_'}}), - sets:to_list( - sets:from_list( - mnesia:select(rabbit_reverse_route, [{MatchHead, [], ['$1']}]))). - -has_bindings(ExchangeName) -> - MatchHead = #route{binding = #binding{exchange_name = ExchangeName, - _ = '_'}}, - try - continue(mnesia:select(rabbit_route, [{MatchHead, [], ['$_']}], - 1, read)) - catch exit:{aborted, {badarg, _}} -> - %% work around OTP-7025, which was fixed in R12B-1, by - %% falling back on a less efficient method - case mnesia:match_object(rabbit_route, MatchHead, read) of - [] -> false; - [_|_] -> true - end - end. - -continue('$end_of_table') -> false; -continue({[_|_], _}) -> true; -continue({[], Continuation}) -> continue(mnesia:select(Continuation)). - -%% The following call_with_x procedures will retry until the named -%% exchange has a definite state; i.e., it is 'complete', or doesn't -%% exist. - -call_with_exchange(Exchange, Fun) -> - retrying_transaction( - fun(Retry) -> case mnesia:read({rabbit_exchange, Exchange}) of - [X = #exchange{ state = complete }] -> - Fun(X, Retry); - [] -> - {error, not_found}; - [_] -> Retry() - end - end). - -call_with_exchange_and_queue(Exchange, Queue, Fun) -> - retrying_transaction( - fun(Retry) -> case {mnesia:read({rabbit_exchange, Exchange}), - mnesia:read({rabbit_queue, Queue})} of - {[X = #exchange{ state = complete }], [Q]} -> - Fun(X, Q, Retry); - {[X = #exchange{ state = complete }], [ ]} -> - {error, queue_not_found}; - {[_] , _ } -> Retry(); - {[ ] , [_]} -> {error, exchange_not_found}; - {[ ] , [ ]} -> {error, exchange_and_queue_not_found} - end - end). - - -add_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> -<<<<<<< local - call_with_exchange_and_queue( - ExchangeName, QueueName, - fun (X, Q, B) -> - if Q#amqqueue.durable and not(X#exchange.durable) -> - {error, durability_settings_incompatible}; - true -> ok = sync_binding( - fun mnesia:write/3) - end - end). -======= - case binding_action( - ExchangeName, QueueName, RoutingKey, Arguments, - fun (X, Q, B, Retry) -> - case mnesia:read({rabbit_route, B}) of - [#route{ state = complete }] -> {existing, X, B}; - [_] -> Retry(); - [ ] -> - sync_binding( - B, Q#amqqueue.durable, creating, fun mnesia:write/3), - {new, X, B} - end - end) of - {existing, X, B} -> B; - {new, X = #exchange{ type = Type }, B} -> - Backout = fun() -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - sync_binding( - B, false, creating, fun mnesia:delete/3) - end) - end, - try - ok = Type:add_binding(X, B) - catch - _:Err -> - Backout(), - throw(Err) - end, - %% FIXME TODO WARNING AWOOGA the exchange or queue may have been created again - case call_with_exchange_and_queue( - ExchangeName, QueueName, - fun (X, Q, Retry) -> - sync_binding(B, false, complete, fun mnesia:write/3), - ok = case X#exchange.durable of - true -> mnesia:write(rabbit_durable_route, - #route{binding = Binding}, write); - false -> ok - end - end) of - NotFound = {error, _} -> - Backout(), - NotFound; - SuccessResult -> SuccessResult - end - end. - -%% add_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> -%% binding_action( -%% ExchangeName, QueueName, RoutingKey, Arguments, -%% fun (X, Q, B) -> -%% if Q#amqqueue.durable and not(X#exchange.durable) -> -%% {error, durability_settings_incompatible}; -%% true -> - -%% ok = sync_binding(B, Q#amqqueue.durable, -%% fun mnesia:write/3) -%% end -%% end). ->>>>>>> other - -delete_binding(ExchangeName, QueueName, RoutingKey, Arguments) -> -<<<<<<< local -======= - binding_action( - ExchangeName, QueueName, RoutingKey, Arguments, - fun (X, Q, B, Retry) -> - case mnesia:match_object(rabbit_route, #route{binding = B}, - write) of - [] -> {error, binding_not_found}; - _ -> ok = sync_binding(B, Q#amqqueue.durable, deleting, - fun mnesia:delete_object/3), - maybe_auto_delete(X, Retry) - end - end). - -binding_action(ExchangeName, QueueName, RoutingKey, Arguments, Fun) -> ->>>>>>> other - call_with_exchange_and_queue( - ExchangeName, QueueName, -<<<<<<< local - fun (X, Q) -> - ok = sync_binding( - ExchangeName, QueueName, RoutingKey, Arguments, - fun (X, Q, B) -> - maybe_auto_delete(X) -======= - fun (X, Q, Retry) -> - Fun(X, Q, - #binding{exchange_name = ExchangeName, - queue_name = QueueName, - key = RoutingKey, - args = rabbit_misc:sort_field_table(Arguments)}, - Retry) ->>>>>>> other - end). - -<<<<<<< local -sync_binding(ExchangeName, QueueName, RoutingKey, Arguments, Durable, Fun) -> - Binding = #binding{exchange_name = ExchangeName, - queue_name = QueueName, - key = RoutingKey, - args = sort_arguments(Arguments)}) - ok = case Durable of - true -> Fun(rabbit_durable_route, - #route{binding = Binding}, write); - false -> ok - end, -======= -% TODO remove durable -sync_binding(Binding, Durable, State, Fun) -> ->>>>>>> other - {Route, ReverseRoute} = route_with_reverse(Binding), - ok = Fun(rabbit_route, Route, write), - ok = Fun(rabbit_reverse_route, ReverseRoute, write), - ok. - -list_bindings(VHostPath) -> - [{ExchangeName, QueueName, RoutingKey, Arguments} || - #route{binding = #binding{ - exchange_name = ExchangeName, - key = RoutingKey, - queue_name = QueueName, - args = Arguments}} - <- mnesia:dirty_match_object( - rabbit_route, - #route{binding = #binding{ - exchange_name = rabbit_misc:r(VHostPath, exchange), - _ = '_'}, - _ = '_'})]. - -route_with_reverse(#route{binding = Binding}) -> - route_with_reverse(Binding); -route_with_reverse(Binding = #binding{}) -> - Route = #route{binding = Binding}, - {Route, reverse_route(Route)}. - -reverse_route(#route{binding = Binding}) -> - #reverse_route{reverse_binding = reverse_binding(Binding)}; - -reverse_route(#reverse_route{reverse_binding = Binding}) -> - #route{binding = reverse_binding(Binding)}. - -reverse_binding(#reverse_binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}) -> - #binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}; - -reverse_binding(#binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}) -> - #reverse_binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}. - -delete(ExchangeName, _IfUnused = true) -> - call_with_exchange(ExchangeName, fun conditional_delete/2); -delete(ExchangeName, _IfUnused = false) -> - call_with_exchange(ExchangeName, fun unconditional_delete/2). - -maybe_auto_delete(#exchange{auto_delete = false}, _) -> - ok; -maybe_auto_delete(Exchange = #exchange{auto_delete = true}, Retry) -> - conditional_delete(Exchange, Retry), - ok. - -<<<<<<< local -conditional_delete(Exchange = #exchange{name = ExchangeName}) -> - case has_bindings(ExchangeName) of -======= -conditional_delete(Exchange = #exchange{name = ExchangeName}, Retry) -> - Match = #route{binding = #binding{exchange_name = ExchangeName, _ = '_'}}, - %% we need to check for durable routes here too in case a bunch of - %% routes to durable queues have been removed temporarily as a - %% result of a node failure - case contains(rabbit_route, Match) orelse contains(rabbit_durable_route, Match) of ->>>>>>> other - false -> unconditional_delete(Exchange); - true -> {error, in_use} - end. - -unconditional_delete(#exchange{name = ExchangeName}, Retry) -> - ok = delete_exchange_bindings(ExchangeName), - ok = mnesia:delete({rabbit_durable_exchange, ExchangeName}), - ok = mnesia:delete({rabbit_exchange, ExchangeName}). - -%%---------------------------------------------------------------------------- -%% EXTENDED API -%% These are API calls that are not used by the server internally, -%% they are exported for embedded clients to use - -%% This is currently used in mod_rabbit.erl (XMPP) and expects this to -%% return {QueueName, RoutingKey, Arguments} tuples -list_exchange_bindings(ExchangeName) -> - Route = #route{binding = #binding{exchange_name = ExchangeName, - _ = '_'}}, - [{QueueName, RoutingKey, Arguments} || - #route{binding = #binding{queue_name = QueueName, - key = RoutingKey, - args = Arguments}} - <- mnesia:dirty_match_object(rabbit_route, Route)]. - -% Refactoring is left as an exercise for the reader -list_queue_bindings(QueueName) -> - Route = #route{binding = #binding{queue_name = QueueName, - _ = '_'}}, - [{ExchangeName, RoutingKey, Arguments} || - #route{binding = #binding{exchange_name = ExchangeName, - key = RoutingKey, - args = Arguments}} - <- mnesia:dirty_match_object(rabbit_route, Route)]. diff --git a/src/rabbit_exchange_behaviour.erl b/src/rabbit_exchange_behaviour.erl deleted file mode 100644 index 4b275c00..00000000 --- a/src/rabbit_exchange_behaviour.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_behaviour). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - {description, 0}, - {publish, 2}, - - {declare, 1}, %% called BEFORE declaration, to check args etc; may exit with #amqp_error{} - {init, 1}, %% called after declaration when previously absent, or during recovery - {delete, 1}, %% called after exchange deletion - {add_binding, 2}, %% called after a binding has been added - {delete_binding, 2} %% called after a binding has been deleted - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_exchange_events.erl b/src/rabbit_exchange_events.erl deleted file mode 100644 index 77647135..00000000 --- a/src/rabbit_exchange_events.erl +++ /dev/null @@ -1,108 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_events). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/0]). --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]). - --define(SERVER, ?MODULE). - --ifdef(use_specs). --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -with_exchange(#binding{exchange_name = ExchangeName}, Fun) -> - case rabbit_exchange:lookup(ExchangeName) of - {ok, X} -> - Fun(X); - not_found -> - ok - end. - -handle_table_event({write, rabbit_exchange, X = #exchange{type = Type}, _OldRecs, _ActivityId}) -> - %% Exchange created/recovered. - ok = Type:init(X); -handle_table_event({delete, rabbit_exchange, {rabbit_exchange, _ExchangeName}, - [X = #exchange{type = Type}], _ActivityId}) -> - %% Exchange deleted. - ok = Type:delete(X); -handle_table_event({write, rabbit_route, #route{binding = B}, _OldRecs, _ActivityId}) -> - %% New binding. - ok = with_exchange(B, fun (X = #exchange{type = Type}) -> Type:add_binding(X, B) end); -handle_table_event({delete, rabbit_route, #route{binding = B}, _OldRecs, _ActivityId}) -> - %% Deleted binding. - ok = with_exchange(B, fun (X = #exchange{type = Type}) -> Type:delete_binding(X, B) end); -handle_table_event(_Event) -> - {error, unhandled_table_event}. - -%%--------------------------------------------------------------------------- - -init([]) -> - mnesia:subscribe({table, rabbit_exchange, detailed}), - mnesia:subscribe({table, rabbit_route, detailed}), - {ok, no_state}. - -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info({mnesia_table_event, Event}, State) -> - case catch handle_table_event(Event) of - {'EXIT', Reason} -> - rabbit_log:error("Exchange event callback failed~n~p~n", [[{event, Event}, - {reason, Reason}]]); - ok -> - ok; - {error, unhandled_table_event} -> - rabbit_log:error("Unexpected mnesia_table_event~n~p~n", [Event]) - end, - {noreply, State}; -handle_info(Info, State) -> - {stop, {unhandled_info, Info}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl deleted file mode 100644 index 58dcfbb6..00000000 --- a/src/rabbit_exchange_type.erl +++ /dev/null @@ -1,107 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([register/2, lookup_module/1, lookup_name/1]). - --define(SERVER, ?MODULE). - -%%--------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -register(TypeName, ModuleName) -> - gen_server:call(?SERVER, {register, TypeName, ModuleName}). - -lookup_module(T) when is_binary(T) -> - case ets:lookup(rabbit_exchange_type_modules, T) of - [{_, Module}] -> - {ok, Module}; - [] -> - {error, not_found} - end. - -lookup_name(M) when is_atom(M) -> - [{_, TypeName}] = ets:lookup(rabbit_exchange_type_names, M), - {ok, TypeName}. - -%%--------------------------------------------------------------------------- - -internal_register(TypeName, ModuleName) - when is_binary(TypeName), is_atom(ModuleName) -> - true = ets:insert(rabbit_exchange_type_modules, {TypeName, ModuleName}), - true = ets:insert(rabbit_exchange_type_names, {ModuleName, TypeName}), - ok. - -%%--------------------------------------------------------------------------- - -init([]) -> - rabbit_exchange_type_modules = - ets:new(rabbit_exchange_type_modules, [protected, set, named_table]), - rabbit_exchange_type_names = - ets:new(rabbit_exchange_type_names, [protected, set, named_table]), - - %% TODO: split out into separate boot startup steps. - ok = internal_register(<<"direct">>, rabbit_exchange_type_direct), - ok = internal_register(<<"fanout">>, rabbit_exchange_type_fanout), - ok = internal_register(<<"headers">>, rabbit_exchange_type_headers), - ok = internal_register(<<"topic">>, rabbit_exchange_type_topic), - - {ok, none}. - -handle_call({register, TypeName, ModuleName}, _From, State) -> - ok = internal_register(TypeName, ModuleName), - {reply, ok, State}; -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_exchange_type_direct.erl b/src/rabbit_exchange_type_direct.erl deleted file mode 100644 index dff06b25..00000000 --- a/src/rabbit_exchange_type_direct.erl +++ /dev/null @@ -1,53 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_direct). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_behaviour). - --export([description/0, publish/2]). --export([declare/1, init/1, delete/1, add_binding/2, delete_binding/2]). --include("rabbit_exchange_behaviour_spec.hrl"). - -description() -> - [{name, <<"direct">>}, - {description, <<"AMQP direct exchange, as per the AMQP specification">>}]. - -publish(#exchange{name = Name}, - Delivery = #delivery{message = #basic_message{routing_key = RoutingKey}}) -> - rabbit_router:deliver(rabbit_router:match_routing_key(Name, RoutingKey), Delivery). - -declare(_X) -> ok. -init(_X) -> ok. -delete(_X) -> ok. -add_binding(_X, _B) -> ok. -delete_binding(_X, _B) -> ok. diff --git a/src/rabbit_exchange_type_fanout.erl b/src/rabbit_exchange_type_fanout.erl deleted file mode 100644 index b4654b0c..00000000 --- a/src/rabbit_exchange_type_fanout.erl +++ /dev/null @@ -1,52 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_fanout). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_behaviour). - --export([description/0, publish/2]). --export([declare/1, init/1, delete/1, add_binding/2, delete_binding/2]). --include("rabbit_exchange_behaviour_spec.hrl"). - -description() -> - [{name, <<"fanout">>}, - {description, <<"AMQP fanout exchange, as per the AMQP specification">>}]. - -publish(#exchange{name = Name}, Delivery) -> - rabbit_router:deliver(rabbit_router:match_routing_key(Name, '_'), Delivery). - -declare(_X) -> ok. -init(_X) -> ok. -delete(_X) -> ok. -add_binding(_X, _B) -> ok. -delete_binding(_X, _B) -> ok. diff --git a/src/rabbit_exchange_type_headers.erl b/src/rabbit_exchange_type_headers.erl deleted file mode 100644 index f28bfdc7..00000000 --- a/src/rabbit_exchange_type_headers.erl +++ /dev/null @@ -1,127 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_headers). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(rabbit_exchange_behaviour). - --export([description/0, publish/2]). --export([declare/1, init/1, delete/1, add_binding/2, delete_binding/2]). --include("rabbit_exchange_behaviour_spec.hrl"). - --ifdef(use_specs). --spec(headers_match/2 :: (amqp_table(), amqp_table()) -> boolean()). --endif. - -description() -> - [{name, <<"headers">>}, - {description, <<"AMQP headers exchange, as per the AMQP specification">>}]. - -publish(#exchange{name = Name}, - Delivery = #delivery{message = #basic_message{content = Content}}) -> - Headers = case (Content#content.properties)#'P_basic'.headers of - undefined -> []; - H -> rabbit_misc:sort_field_table(H) - end, - rabbit_router:deliver(rabbit_router:match_bindings(Name, fun (#binding{args = Spec}) -> - headers_match(Spec, Headers) - end), - Delivery). - -default_headers_match_kind() -> all. - -parse_x_match(<<"all">>) -> all; -parse_x_match(<<"any">>) -> any; -parse_x_match(Other) -> - rabbit_log:warning("Invalid x-match field value ~p; expected all or any", - [Other]), - default_headers_match_kind(). - -%% Horrendous matching algorithm. Depends for its merge-like -%% (linear-time) behaviour on the lists:keysort -%% (rabbit_misc:sort_field_table) that route/3 and -%% rabbit_exchange:{add,delete}_binding/4 do. -%% -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% In other words: REQUIRES BOTH PATTERN AND DATA TO BE SORTED ASCENDING BY KEY. -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% -headers_match(Pattern, Data) -> - MatchKind = case lists:keysearch(<<"x-match">>, 1, Pattern) of - {value, {_, longstr, MK}} -> parse_x_match(MK); - {value, {_, Type, MK}} -> - rabbit_log:warning("Invalid x-match field type ~p " - "(value ~p); expected longstr", - [Type, MK]), - default_headers_match_kind(); - _ -> default_headers_match_kind() - end, - headers_match(Pattern, Data, true, false, MatchKind). - -headers_match([], _Data, AllMatch, _AnyMatch, all) -> - AllMatch; -headers_match([], _Data, _AllMatch, AnyMatch, any) -> - AnyMatch; -headers_match([{<<"x-", _/binary>>, _PT, _PV} | PRest], Data, - AllMatch, AnyMatch, MatchKind) -> - headers_match(PRest, Data, AllMatch, AnyMatch, MatchKind); -headers_match(_Pattern, [], _AllMatch, AnyMatch, MatchKind) -> - headers_match([], [], false, AnyMatch, MatchKind); -headers_match(Pattern = [{PK, _PT, _PV} | _], [{DK, _DT, _DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK > DK -> - headers_match(Pattern, DRest, AllMatch, AnyMatch, MatchKind); -headers_match([{PK, _PT, _PV} | PRest], Data = [{DK, _DT, _DV} | _], - _AllMatch, AnyMatch, MatchKind) when PK < DK -> - headers_match(PRest, Data, false, AnyMatch, MatchKind); -headers_match([{PK, PT, PV} | PRest], [{DK, DT, DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK == DK -> - {AllMatch1, AnyMatch1} = - if - %% It's not properly specified, but a "no value" in a - %% pattern field is supposed to mean simple presence of - %% the corresponding data field. I've interpreted that to - %% mean a type of "void" for the pattern field. - PT == void -> {AllMatch, true}; - %% Similarly, it's not specified, but I assume that a - %% mismatched type causes a mismatched value. - PT =/= DT -> {false, AnyMatch}; - PV == DV -> {AllMatch, true}; - true -> {false, AnyMatch} - end, - headers_match(PRest, DRest, AllMatch1, AnyMatch1, MatchKind). - -declare(_X) -> ok. -init(_X) -> ok. -delete(_X) -> ok. -add_binding(_X, _B) -> ok. -delete_binding(_X, _B) -> ok. diff --git a/src/rabbit_exchange_type_topic.erl b/src/rabbit_exchange_type_topic.erl deleted file mode 100644 index ecb65807..00000000 --- a/src/rabbit_exchange_type_topic.erl +++ /dev/null @@ -1,90 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_topic). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_behaviour). - --export([description/0, publish/2]). --export([declare/1, init/1, delete/1, add_binding/2, delete_binding/2]). --include("rabbit_exchange_behaviour_spec.hrl"). - --export([topic_matches/2]). - --ifdef(use_specs). --spec(topic_matches/2 :: (binary(), binary()) -> boolean()). --endif. - -description() -> - [{name, <<"topic">>}, - {description, <<"AMQP topic exchange, as per the AMQP specification">>}]. - -publish(#exchange{name = Name}, - Delivery = #delivery{message = #basic_message{routing_key = RoutingKey}}) -> - rabbit_router:deliver(rabbit_router:match_bindings(Name, - fun (#binding{key = BindingKey}) -> - topic_matches(BindingKey, RoutingKey) - end), - Delivery). - -split_topic_key(Key) -> - {ok, KeySplit} = regexp:split(binary_to_list(Key), "\\."), - KeySplit. - -topic_matches(PatternKey, RoutingKey) -> - P = split_topic_key(PatternKey), - R = split_topic_key(RoutingKey), - topic_matches1(P, R). - -topic_matches1(["#"], _R) -> - true; -topic_matches1(["#" | PTail], R) -> - last_topic_match(PTail, [], lists:reverse(R)); -topic_matches1([], []) -> - true; -topic_matches1(["*" | PatRest], [_ | ValRest]) -> - topic_matches1(PatRest, ValRest); -topic_matches1([PatElement | PatRest], [ValElement | ValRest]) when PatElement == ValElement -> - topic_matches1(PatRest, ValRest); -topic_matches1(_, _) -> - false. - -last_topic_match(P, R, []) -> - topic_matches1(P, R); -last_topic_match(P, R, [BacktrackNext | BacktrackList]) -> - topic_matches1(P, R) or last_topic_match(P, [BacktrackNext | R], BacktrackList). - -declare(_X) -> ok. -init(_X) -> ok. -delete(_X) -> ok. -add_binding(_X, _B) -> ok. -delete_binding(_X, _B) -> ok. diff --git a/src/rabbit_framing_channel.erl b/src/rabbit_framing_channel.erl deleted file mode 100644 index 060bed48..00000000 --- a/src/rabbit_framing_channel.erl +++ /dev/null @@ -1,121 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_framing_channel). --include("rabbit.hrl"). - --export([start_link/2, process/2, shutdown/1]). - -%% internal --export([mainloop/1]). - -%%-------------------------------------------------------------------- - -start_link(StartFun, StartArgs) -> - spawn_link( - fun () -> - %% we trap exits so that a normal termination of the - %% channel or reader process terminates us too. - process_flag(trap_exit, true), - mainloop(apply(StartFun, StartArgs)) - end). - -process(Pid, Frame) -> - Pid ! {frame, Frame}, - ok. - -shutdown(Pid) -> - Pid ! terminate, - ok. - -%%-------------------------------------------------------------------- - -read_frame(ChannelPid) -> - receive - %% converting the exit signal into one of our own ensures that - %% the reader sees the right pid (i.e. ours) when a channel - %% exits. Similarly in the other direction, though it is not - %% really relevant there since the channel is not specifically - %% watching out for reader exit signals. - {'EXIT', _Pid, Reason} -> exit(Reason); - {frame, Frame} -> Frame; - terminate -> rabbit_channel:shutdown(ChannelPid), - read_frame(ChannelPid); - Msg -> exit({unexpected_message, Msg}) - end. - -mainloop(ChannelPid) -> - {method, MethodName, FieldsBin} = read_frame(ChannelPid), - Method = rabbit_framing:decode_method_fields(MethodName, FieldsBin), - case rabbit_framing:method_has_content(MethodName) of - true -> rabbit_channel:do(ChannelPid, Method, - collect_content(ChannelPid, MethodName)); - false -> rabbit_channel:do(ChannelPid, Method) - end, - ?MODULE:mainloop(ChannelPid). - -collect_content(ChannelPid, MethodName) -> - {ClassId, _MethodId} = rabbit_framing:method_id(MethodName), - case read_frame(ChannelPid) of - {content_header, HeaderClassId, 0, BodySize, PropertiesBin} -> - if HeaderClassId == ClassId -> - Payload = collect_content_payload(ChannelPid, BodySize, []), - #content{class_id = ClassId, - properties = none, - properties_bin = PropertiesBin, - payload_fragments_rev = Payload}; - true -> - rabbit_misc:protocol_error( - command_invalid, - "expected content header for class ~w, got one for class ~w instead", - [ClassId, HeaderClassId]) - end; - _ -> - rabbit_misc:protocol_error( - command_invalid, - "expected content header for class ~w, got non content header frame instead", - [ClassId]) - end. - -collect_content_payload(_ChannelPid, 0, Acc) -> - Acc; -collect_content_payload(ChannelPid, RemainingByteCount, Acc) -> - case read_frame(ChannelPid) of - {content_body, FragmentBin} -> - collect_content_payload(ChannelPid, - RemainingByteCount - size(FragmentBin), - [FragmentBin | Acc]); - _ -> - rabbit_misc:protocol_error( - command_invalid, - "expected content body, got non content body frame instead", - []) - end. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl deleted file mode 100644 index dee21c34..00000000 --- a/src/rabbit_guid.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_guid). - --include("rabbit.hrl"). - --behaviour(gen_server). - --export([start_link/0]). --export([guid/0, string_guid/1, binstring_guid/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_serial"). - --record(state, {serial}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(guid/0 :: () -> guid()). --spec(string_guid/1 :: (any()) -> string()). --spec(binstring_guid/1 :: (any()) -> binary()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(rabbit_mnesia:dir(), ?SERIAL_FILENAME), - Serial = case rabbit_misc:read_term_file(Filename) of - {ok, [Num]} -> Num; - {error, enoent} -> 0; - {error, Reason} -> - throw({error, {cannot_read_serial_file, Filename, Reason}}) - end, - case rabbit_misc:write_term_file(Filename, [Serial + 1]) of - ok -> ok; - {error, Reason1} -> - throw({error, {cannot_write_serial_file, Filename, Reason1}}) - end, - Serial. - -%% generate a guid that is monotonically increasing per process. -%% -%% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. -guid() -> - %% We don't use erlang:now() here because a) it may return - %% duplicates when the system clock has been rewound prior to a - %% restart, or ids were generated at a high rate (which causes - %% now() to move ahead of the system time), and b) it is really - %% slow since it takes a global lock and makes a system call. - %% - %% A persisted serial number, in combination with self/0 (which - %% includes the node name) uniquely identifies a process in space - %% and time. We combine that with a process-local counter to give - %% us a GUID that is monotonically increasing per process. - G = case get(guid) of - undefined -> {{gen_server:call(?SERVER, serial, infinity), self()}, - 0}; - {S, I} -> {S, I+1} - end, - put(guid, G), - erlang:md5(term_to_binary(G)). - -%% generate a readable string representation of a guid. Note that any -%% monotonicity of the guid is not preserved in the encoding. -string_guid(Prefix) -> - Prefix ++ "-" ++ base64:encode_to_string(guid()). - -binstring_guid(Prefix) -> - list_to_binary(string_guid(Prefix)). - -%%---------------------------------------------------------------------------- - -init([Serial]) -> - {ok, #state{serial = Serial}}. - -handle_call(serial, _From, State = #state{serial = Serial}) -> - {reply, Serial, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_heartbeat.erl b/src/rabbit_heartbeat.erl deleted file mode 100644 index ed0066fe..00000000 --- a/src/rabbit_heartbeat.erl +++ /dev/null @@ -1,100 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_heartbeat). - --export([start_heartbeat/2]). - -start_heartbeat(_Sock, 0) -> - none; -start_heartbeat(Sock, TimeoutSec) -> - Parent = self(), - %% we check for incoming data every interval, and time out after - %% two checks with no change. As a result we will time out between - %% 2 and 3 intervals after the last data has been received. - spawn_link(fun () -> heartbeater(Sock, TimeoutSec * 1000, - recv_oct, 1, - fun () -> - Parent ! timeout, - stop - end, - erlang:monitor(process, Parent)) end), - %% the 'div 2' is there so that we don't end up waiting for nearly - %% 2 * TimeoutSec before sending a heartbeat in the boundary case - %% where the last message was sent just after a heartbeat. - spawn_link(fun () -> heartbeater(Sock, TimeoutSec * 1000 div 2, - send_oct, 0, - fun () -> - catch rabbit_net:send(Sock, rabbit_binary_generator:build_heartbeat_frame()), - continue - end, - erlang:monitor(process, Parent)) end), - ok. - -%% Y-combinator, posted by Vladimir Sekissov to the Erlang mailing list -%% http://www.erlang.org/ml-archive/erlang-questions/200301/msg00053.html -y(X) -> - F = fun (P) -> X(fun (A) -> (P(P))(A) end) end, - F(F). - -heartbeater(Sock, TimeoutMillisec, StatName, Threshold, Handler, MonitorRef) -> - Heartbeat = - fun (F) -> - fun ({StatVal, SameCount}) -> - receive - {'DOWN', MonitorRef, process, _Object, _Info} -> ok; - Other -> exit({unexpected_message, Other}) - after TimeoutMillisec -> - case rabbit_net:getstat(Sock, [StatName]) of - {ok, [{StatName, NewStatVal}]} -> - if NewStatVal =/= StatVal -> - F({NewStatVal, 0}); - SameCount < Threshold -> - F({NewStatVal, SameCount + 1}); - true -> - case Handler() of - stop -> ok; - continue -> F({NewStatVal, 0}) - end - end; - {error, einval} -> - %% the socket is dead, most - %% likely because the - %% connection is being shut - %% down -> terminate - ok; - {error, Reason} -> - exit({cannot_get_socket_stats, Reason}) - end - end - end - end, - (y(Heartbeat))({0, 0}). diff --git a/src/rabbit_hooks.erl b/src/rabbit_hooks.erl deleted file mode 100644 index b3d271c2..00000000 --- a/src/rabbit_hooks.erl +++ /dev/null @@ -1,73 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_hooks). - --export([start/0]). --export([subscribe/3, unsubscribe/2, trigger/2, notify_remote/5]). - --define(TableName, rabbit_hooks). - --ifdef(use_specs). - --spec(start/0 :: () -> 'ok'). --spec(subscribe/3 :: (atom(), atom(), {atom(), atom(), list()}) -> 'ok'). --spec(unsubscribe/2 :: (atom(), atom()) -> 'ok'). --spec(trigger/2 :: (atom(), list()) -> 'ok'). --spec(notify_remote/5 :: (atom(), atom(), list(), pid(), list()) -> 'ok'). - --endif. - -start() -> - ets:new(?TableName, [bag, public, named_table]), - ok. - -subscribe(Hook, HandlerName, Handler) -> - ets:insert(?TableName, {Hook, HandlerName, Handler}), - ok. - -unsubscribe(Hook, HandlerName) -> - ets:match_delete(?TableName, {Hook, HandlerName, '_'}), - ok. - -trigger(Hook, Args) -> - Hooks = ets:lookup(?TableName, Hook), - [case catch apply(M, F, [Hook, Name, Args | A]) of - {'EXIT', Reason} -> - rabbit_log:warning("Failed to execute handler ~p for hook ~p: ~p", - [Name, Hook, Reason]); - _ -> ok - end || {_, Name, {M, F, A}} <- Hooks], - ok. - -notify_remote(Hook, HandlerName, Args, Pid, PidArgs) -> - Pid ! {rabbitmq_hook, [Hook, HandlerName, Args | PidArgs]}, - ok. diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl deleted file mode 100644 index 087a9f64..00000000 --- a/src/rabbit_limiter.erl +++ /dev/null @@ -1,199 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_limiter). - --behaviour(gen_server). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2]). --export([start_link/1, shutdown/1]). --export([limit/2, can_send/3, ack/2, register/2, unregister/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(maybe_pid() :: pid() | 'undefined'). - --spec(start_link/1 :: (pid()) -> pid()). --spec(shutdown/1 :: (maybe_pid()) -> 'ok'). --spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(can_send/3 :: (maybe_pid(), pid(), boolean()) -> boolean()). --spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - queues = dict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - -%%---------------------------------------------------------------------------- -%% API -%%---------------------------------------------------------------------------- - -start_link(ChPid) -> - {ok, Pid} = gen_server:start_link(?MODULE, [ChPid], []), - Pid. - -shutdown(undefined) -> - ok; -shutdown(LimiterPid) -> - unlink(LimiterPid), - gen_server2:cast(LimiterPid, shutdown). - -limit(undefined, 0) -> - ok; -limit(LimiterPid, PrefetchCount) -> - gen_server2:cast(LimiterPid, {limit, PrefetchCount}). - -%% Ask the limiter whether the queue can deliver a message without -%% breaching a limit -can_send(undefined, _QPid, _AckRequired) -> - true; -can_send(LimiterPid, QPid, AckRequired) -> - rabbit_misc:with_exit_handler( - fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, - infinity) end). - -%% Let the limiter know that the channel has received some acks from a -%% consumer -ack(undefined, _Count) -> ok; -ack(LimiterPid, Count) -> gen_server2:cast(LimiterPid, {ack, Count}). - -register(undefined, _QPid) -> ok; -register(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {register, QPid}). - -unregister(undefined, _QPid) -> ok; -unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([ChPid]) -> - {ok, #lim{ch_pid = ChPid} }. - -handle_call({can_send, QPid, AckRequired}, _From, - State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} - end. - -handle_cast(shutdown, State) -> - {stop, normal, State}; - -handle_cast({limit, PrefetchCount}, State) -> - {noreply, maybe_notify(State, State#lim{prefetch_count = PrefetchCount})}; - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {noreply, maybe_notify(State, State#lim{volume = NewVolume})}; - -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; - -handle_cast({unregister, QPid}, State) -> - {noreply, forget_queue(QPid, State)}. - -handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> - {noreply, forget_queue(QPid, State)}. - -terminate(_, _) -> - ok. - -code_change(_, State, _) -> - State. - -%%---------------------------------------------------------------------------- -%% Internal plumbing -%%---------------------------------------------------------------------------- - -maybe_notify(OldState, NewState) -> - case limit_reached(OldState) andalso not(limit_reached(NewState)) of - true -> notify_queues(NewState); - false -> NewState - end. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -remember_queue(QPid, State = #lim{queues = Queues}) -> - case dict:is_key(QPid, Queues) of - false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = dict:store(QPid, {MRef, false}, Queues)}; - true -> State - end. - -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> - case dict:find(QPid, Queues) of - {ok, {MRef, _}} -> - true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), - State#lim{queues = dict:erase(QPid, Queues)}; - error -> State - end. - -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, - State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. - -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - dict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], dict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, - State#lim{queues = NewQueues}. diff --git a/src/rabbit_load.erl b/src/rabbit_load.erl deleted file mode 100644 index 6ef638cb..00000000 --- a/src/rabbit_load.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_load). - --export([local_load/0, remote_loads/0, pick/0]). - --define(FUDGE_FACTOR, 0.98). --define(TIMEOUT, 100). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(erlang_node() :: atom()). --type(load() :: {{non_neg_integer(), integer() | 'unknown'}, erlang_node()}). --spec(local_load/0 :: () -> load()). --spec(remote_loads/0 :: () -> [load()]). --spec(pick/0 :: () -> erlang_node()). - --endif. - -%%---------------------------------------------------------------------------- - -local_load() -> - LoadAvg = case whereis(cpu_sup) of - undefined -> unknown; - _ -> case cpu_sup:avg1() of - L when is_integer(L) -> L; - {error, timeout} -> unknown - end - end, - {{statistics(run_queue), LoadAvg}, node()}. - -remote_loads() -> - {ResL, _BadNodes} = - rpc:multicall(nodes(), ?MODULE, local_load, [], ?TIMEOUT), - ResL. - -pick() -> - RemoteLoads = remote_loads(), - {{RunQ, LoadAvg}, Node} = local_load(), - %% add bias towards current node; we rely on Erlang's term order - %% of SomeFloat < local_unknown < unknown. - AdjustedLoadAvg = case LoadAvg of - unknown -> local_unknown; - _ -> LoadAvg * ?FUDGE_FACTOR - end, - Loads = [{{RunQ, AdjustedLoadAvg}, Node} | RemoteLoads], - {_, SelectedNode} = lists:min(Loads), - SelectedNode. diff --git a/src/rabbit_log.erl b/src/rabbit_log.erl deleted file mode 100644 index dd5b498b..00000000 --- a/src/rabbit_log.erl +++ /dev/null @@ -1,150 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_log). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([debug/1, debug/2, message/4, info/1, info/2, - warning/1, warning/2, error/1, error/2]). - --import(io). --import(error_logger). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(debug/1 :: (string()) -> 'ok'). --spec(debug/2 :: (string(), [any()]) -> 'ok'). --spec(info/1 :: (string()) -> 'ok'). --spec(info/2 :: (string(), [any()]) -> 'ok'). --spec(warning/1 :: (string()) -> 'ok'). --spec(warning/2 :: (string(), [any()]) -> 'ok'). --spec(error/1 :: (string()) -> 'ok'). --spec(error/2 :: (string(), [any()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -debug(Fmt) -> - gen_server:cast(?SERVER, {debug, Fmt}). - -debug(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {debug, Fmt, Args}). - -message(Direction, Channel, MethodRecord, Content) -> - gen_server:cast(?SERVER, - {message, Direction, Channel, MethodRecord, Content}). - -info(Fmt) -> - gen_server:cast(?SERVER, {info, Fmt}). - -info(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {info, Fmt, Args}). - -warning(Fmt) -> - gen_server:cast(?SERVER, {warning, Fmt}). - -warning(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {warning, Fmt, Args}). - -error(Fmt) -> - gen_server:cast(?SERVER, {error, Fmt}). - -error(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {error, Fmt, Args}). - -%%-------------------------------------------------------------------- - -init([]) -> {ok, none}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({debug, Fmt}, State) -> - io:format("debug:: "), io:format(Fmt), - error_logger:info_msg("debug:: " ++ Fmt), - {noreply, State}; -handle_cast({debug, Fmt, Args}, State) -> - io:format("debug:: "), io:format(Fmt, Args), - error_logger:info_msg("debug:: " ++ Fmt, Args), - {noreply, State}; -handle_cast({message, Direction, Channel, MethodRecord, Content}, State) -> - io:format("~s ch~p ~p~n", - [case Direction of - in -> "-->"; - out -> "<--" end, - Channel, - {MethodRecord, Content}]), - {noreply, State}; -handle_cast({info, Fmt}, State) -> - error_logger:info_msg(Fmt), - {noreply, State}; -handle_cast({info, Fmt, Args}, State) -> - error_logger:info_msg(Fmt, Args), - {noreply, State}; -handle_cast({warning, Fmt}, State) -> - error_logger:warning_msg(Fmt), - {noreply, State}; -handle_cast({warning, Fmt, Args}, State) -> - error_logger:warning_msg(Fmt, Args), - {noreply, State}; -handle_cast({error, Fmt}, State) -> - error_logger:error_msg(Fmt), - {noreply, State}; -handle_cast({error, Fmt, Args}, State) -> - error_logger:error_msg(Fmt, Args), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl deleted file mode 100644 index d6693d95..00000000 --- a/src/rabbit_memory_monitor.erl +++ /dev/null @@ -1,292 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - - -%% This module handles the node-wide memory statistics. -%% It receives statistics from all queues, counts the desired -%% queue length (in seconds), and sends this information back to -%% queues. - --module(rabbit_memory_monitor). - --behaviour(gen_server2). - --export([start_link/0, update/0, register/2, deregister/1, - report_queue_duration/2, stop/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(process, {pid, reported, sent, callback, monitor}). - --record(state, {timer, %% 'internal_update' timer - queue_durations, %% ets #process - queue_duration_sum, %% sum of all queue_durations - queue_duration_count, %% number of elements in sum - memory_limit, %% how much memory we intend to use - desired_duration %% the desired queue duration - }). - --define(SERVER, ?MODULE). --define(DEFAULT_UPDATE_INTERVAL, 2500). --define(TABLE_NAME, ?MODULE). - -%% Because we have a feedback loop here, we need to ensure that we -%% have some space for when the queues don't quite respond as fast as -%% we would like, or when there is buffering going on in other parts -%% of the system. In short, we aim to stay some distance away from -%% when the memory alarms will go off, which cause channel.flow. -%% Note that all other Thresholds are relative to this scaling. --define(MEMORY_LIMIT_SCALING, 0.4). - --define(LIMIT_THRESHOLD, 0.5). %% don't limit queues when mem use is < this - -%% If all queues are pushed to disk (duration 0), then the sum of -%% their reported lengths will be 0. If memory then becomes available, -%% unless we manually intervene, the sum will remain 0, and the queues -%% will never get a non-zero duration. Thus when the mem use is < -%% SUM_INC_THRESHOLD, increase the sum artificially by SUM_INC_AMOUNT. --define(SUM_INC_THRESHOLD, 0.95). --define(SUM_INC_AMOUNT, 1.0). - -%% If user disabled vm_memory_monitor, let's assume 1GB of memory we can use. --define(MEMORY_SIZE_FOR_DISABLED_VMM, 1073741824). - --define(EPSILON, 0.000001). %% less than this and we clamp to 0 - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> 'ignore' | {'error', _} | {'ok', pid()}). --spec(update/0 :: () -> 'ok'). --spec(register/2 :: (pid(), {atom(),atom(),[any()]}) -> 'ok'). --spec(deregister/1 :: (pid()) -> 'ok'). --spec(report_queue_duration/2 :: (pid(), float() | 'infinity') -> number()). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -update() -> - gen_server2:cast(?SERVER, update). - -register(Pid, MFA = {_M, _F, _A}) -> - gen_server2:call(?SERVER, {register, Pid, MFA}, infinity). - -deregister(Pid) -> - gen_server2:cast(?SERVER, {deregister, Pid}). - -report_queue_duration(Pid, QueueDuration) -> - gen_server2:call(?SERVER, - {report_queue_duration, Pid, QueueDuration}, infinity). - -stop() -> - gen_server2:cast(?SERVER, stop). - -%%---------------------------------------------------------------------------- -%% Gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - MemoryLimit = trunc(?MEMORY_LIMIT_SCALING * - (case vm_memory_monitor:get_memory_limit() of - undefined -> ?MEMORY_SIZE_FOR_DISABLED_VMM; - Limit -> Limit - end)), - - {ok, TRef} = timer:apply_interval(?DEFAULT_UPDATE_INTERVAL, - ?SERVER, update, []), - - Ets = ets:new(?TABLE_NAME, [set, private, {keypos, #process.pid}]), - - {ok, internal_update( - #state { timer = TRef, - queue_durations = Ets, - queue_duration_sum = 0.0, - queue_duration_count = 0, - memory_limit = MemoryLimit, - desired_duration = infinity })}. - -handle_call({report_queue_duration, Pid, QueueDuration}, From, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations, - desired_duration = SendDuration }) -> - - [Proc = #process { reported = PrevQueueDuration }] = - ets:lookup(Durations, Pid), - - gen_server2:reply(From, SendDuration), - - {Sum1, Count1} = - case {PrevQueueDuration, QueueDuration} of - {infinity, infinity} -> {Sum, Count}; - {infinity, _} -> {Sum + QueueDuration, Count + 1}; - {_, infinity} -> {Sum - PrevQueueDuration, Count - 1}; - {_, _} -> {Sum - PrevQueueDuration + QueueDuration, - Count} - end, - true = ets:insert(Durations, Proc #process { reported = QueueDuration, - sent = SendDuration }), - {noreply, State #state { queue_duration_sum = zero_clamp(Sum1), - queue_duration_count = Count1 }}; - -handle_call({register, Pid, MFA}, _From, - State = #state { queue_durations = Durations }) -> - MRef = erlang:monitor(process, Pid), - true = ets:insert(Durations, #process { pid = Pid, reported = infinity, - sent = infinity, callback = MFA, - monitor = MRef }), - {reply, ok, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast({deregister, Pid}, State) -> - {noreply, internal_deregister(Pid, true, State)}; - -handle_cast(stop, State) -> - {stop, normal, State}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, State) -> - {noreply, internal_deregister(Pid, false, State)}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state { timer = TRef }) -> - timer:cancel(TRef), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -zero_clamp(Sum) -> - case Sum < ?EPSILON of - true -> 0.0; - false -> Sum - end. - -internal_deregister(Pid, Demonitor, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations }) -> - case ets:lookup(Durations, Pid) of - [] -> State; - [#process { reported = PrevQueueDuration, monitor = MRef }] -> - true = case Demonitor of - true -> erlang:demonitor(MRef); - false -> true - end, - {Sum1, Count1} = - case PrevQueueDuration of - infinity -> {Sum, Count}; - _ -> {zero_clamp(Sum - PrevQueueDuration), - Count - 1} - end, - true = ets:delete(Durations, Pid), - State #state { queue_duration_sum = Sum1, - queue_duration_count = Count1 } - end. - -internal_update(State = #state { memory_limit = Limit, - queue_durations = Durations, - desired_duration = DesiredDurationAvg, - queue_duration_sum = Sum, - queue_duration_count = Count }) -> - MemoryRatio = erlang:memory(total) / Limit, - DesiredDurationAvg1 = - case MemoryRatio < ?LIMIT_THRESHOLD orelse Count == 0 of - true -> - infinity; - false -> - Sum1 = case MemoryRatio < ?SUM_INC_THRESHOLD of - true -> Sum + ?SUM_INC_AMOUNT; - false -> Sum - end, - (Sum1 / Count) / MemoryRatio - end, - State1 = State #state { desired_duration = DesiredDurationAvg1 }, - - %% only inform queues immediately if the desired duration has - %% decreased - case DesiredDurationAvg1 == infinity orelse - (DesiredDurationAvg /= infinity andalso - DesiredDurationAvg1 >= DesiredDurationAvg) of - true -> - ok; - false -> - true = - ets:foldl( - fun (Proc = #process { reported = QueueDuration, - sent = PrevSendDuration, - callback = {M, F, A} }, true) -> - case (case {QueueDuration, PrevSendDuration} of - {infinity, infinity} -> - true; - {infinity, D} -> - DesiredDurationAvg1 < D; - {D, infinity} -> - DesiredDurationAvg1 < D; - {D1, D2} -> - DesiredDurationAvg1 < - lists:min([D1,D2]) - end) of - true -> - ok = erlang:apply( - M, F, A ++ [DesiredDurationAvg1]), - ets:insert( - Durations, - Proc #process {sent = DesiredDurationAvg1}); - false -> - true - end - end, true, Durations) - end, - State1. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl deleted file mode 100644 index e69de29b..00000000 diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl deleted file mode 100644 index 9979914d..00000000 --- a/src/rabbit_mnesia.erl +++ /dev/null @@ -1,436 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_mnesia). - --export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/1, reset/0, force_reset/0, is_clustered/0, - empty_ram_only_tables/0]). - --export([table_names/0]). - -%% create_tables/0 exported for helping embed RabbitMQ in or alongside -%% other mnesia-using Erlang applications, such as ejabberd --export([create_tables/0]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(status/0 :: () -> [{'nodes' | 'running_nodes', [erlang_node()]}]). --spec(dir/0 :: () -> string()). --spec(ensure_mnesia_dir/0 :: () -> 'ok'). --spec(init/0 :: () -> 'ok'). --spec(is_db_empty/0 :: () -> boolean()). --spec(cluster/1 :: ([erlang_node()]) -> 'ok'). --spec(reset/0 :: () -> 'ok'). --spec(force_reset/0 :: () -> 'ok'). --spec(is_clustered/0 :: () -> boolean()). --spec(empty_ram_only_tables/0 :: () -> 'ok'). --spec(create_tables/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -status() -> - [{nodes, mnesia:system_info(db_nodes)}, - {running_nodes, mnesia:system_info(running_db_nodes)}]. - -init() -> - ok = ensure_mnesia_running(), - ok = ensure_mnesia_dir(), - ok = init_db(read_cluster_nodes_config()), - ok = wait_for_tables(), - ok. - -is_db_empty() -> - lists:all(fun (Tab) -> mnesia:dirty_first(Tab) == '$end_of_table' end, - table_names()). - -%% Alter which disk nodes this node is clustered with. This can be a -%% subset of all the disk nodes in the cluster but can (and should) -%% include the node itself if it is to be a disk rather than a ram -%% node. -cluster(ClusterNodes) -> - ok = ensure_mnesia_not_running(), - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - try - ok = init_db(ClusterNodes), - ok = wait_for_tables(), - ok = create_cluster_nodes_config(ClusterNodes) - after - mnesia:stop() - end, - ok. - -%% return node to its virgin state, where it is not member of any -%% cluster, has no cluster configuration, no local database, and no -%% persisted messages -reset() -> reset(false). -force_reset() -> reset(true). - -is_clustered() -> - RunningNodes = mnesia:system_info(running_db_nodes), - [node()] /= RunningNodes andalso [] /= RunningNodes. - -empty_ram_only_tables() -> - Node = node(), - lists:foreach( - fun (TabName) -> - case lists:member(Node, mnesia:table_info(TabName, ram_copies)) of - true -> {atomic, ok} = mnesia:clear_table(TabName); - false -> ok - end - end, table_names()), - ok. - -%%-------------------------------------------------------------------- - -table_definitions() -> - [{user, [{disc_copies, [node()]}, - {attributes, record_info(fields, user)}]}, - {user_vhost, [{type, bag}, - {disc_copies, [node()]}, - {attributes, record_info(fields, user_vhost)}, - {index, [virtual_host]}]}, - {vhost, [{disc_copies, [node()]}, - {attributes, record_info(fields, vhost)}]}, - {rabbit_config, [{disc_copies, [node()]}]}, - {listener, [{type, bag}, - {attributes, record_info(fields, listener)}]}, - {durable_routes, [{disc_copies, [node()]}, - {record_name, route}, - {attributes, record_info(fields, route)}]}, - {route, [{type, ordered_set}, - {attributes, record_info(fields, route)}]}, - {reverse_route, [{type, ordered_set}, - {attributes, record_info(fields, reverse_route)}]}, - {durable_exchanges, [{disc_copies, [node()]}, - {record_name, exchange}, - {attributes, record_info(fields, exchange)}]}, - {exchange, [{attributes, record_info(fields, exchange)}]}, - {durable_queues, [{disc_copies, [node()]}, - {record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}, - {amqqueue, [{attributes, record_info(fields, amqqueue)}, - {index, [pid]}]}]. - -table_names() -> - [Tab || {Tab, _} <- table_definitions()]. - -replicated_table_names() -> - [Tab || {Tab, Attrs} <- table_definitions(), - not lists:member({local_content, true}, Attrs) - ]. - -dir() -> mnesia:system_info(directory). - -ensure_mnesia_dir() -> - MnesiaDir = dir() ++ "/", - case filelib:ensure_dir(MnesiaDir) of - {error, Reason} -> - throw({error, {cannot_create_mnesia_dir, MnesiaDir, Reason}}); - ok -> ok - end. - -ensure_mnesia_running() -> - case mnesia:system_info(is_running) of - yes -> ok; - no -> throw({error, mnesia_not_running}) - end. - -ensure_mnesia_not_running() -> - case mnesia:system_info(is_running) of - no -> ok; - yes -> throw({error, mnesia_unexpectedly_running}) - end. - -check_schema_integrity() -> - %%TODO: more thorough checks - case catch [mnesia:table_info(Tab, version) || Tab <- table_names()] of - {'EXIT', Reason} -> {error, Reason}; - _ -> ok - end. - -%% The cluster node config file contains some or all of the disk nodes -%% that are members of the cluster this node is / should be a part of. -%% -%% If the file is absent, the list is empty, or only contains the -%% current node, then the current node is a standalone (disk) -%% node. Otherwise it is a node that is part of a cluster as either a -%% disk node, if it appears in the cluster node config, or ram node if -%% it doesn't. - -cluster_nodes_config_filename() -> - dir() ++ "/cluster_nodes.config". - -create_cluster_nodes_config(ClusterNodes) -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:write_term_file(FileName, [ClusterNodes]) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_cluster_nodes_config, - FileName, Reason}}) - end. - -read_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - case application:get_env(cluster_config) of - undefined -> []; - {ok, DefaultFileName} -> - case file:consult(DefaultFileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - error_logger:warning_msg( - "default cluster config file ~p does not exist~n", - [DefaultFileName]), - []; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - DefaultFileName, Reason}}) - end - end; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - FileName, Reason}}) - end. - -delete_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> - throw({error, {cannot_delete_cluster_nodes_config, - FileName, Reason}}) - end. - -%% Take a cluster node config and create the right kind of node - a -%% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. -init_db(ClusterNodes) -> - case mnesia:change_config(extra_db_nodes, ClusterNodes -- [node()]) of - {ok, []} -> - case mnesia:system_info(use_dir) of - true -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - %% NB: we cannot use rabbit_log here since - %% it may not have been started yet - error_logger:warning_msg( - "schema integrity check failed: ~p~n" ++ - "moving database to backup location " ++ - "and recreating schema from scratch~n", - [Reason]), - ok = move_db(), - ok = create_schema() - end; - false -> - ok = create_schema() - end; - {ok, [_|_]} -> - IsDiskNode = ClusterNodes == [] orelse - lists:member(node(), ClusterNodes), - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_table_copies(case IsDiskNode of - true -> disc; - false -> ram - end); - {error, Reason} -> - %% one reason we may end up here is if we try to join - %% nodes together that are currently running standalone or - %% are members of a different cluster - throw({error, {unable_to_join_cluster, - ClusterNodes, Reason}}) - end. - -create_schema() -> - mnesia:stop(), - rabbit_misc:ensure_ok(mnesia:create_schema([node()]), - cannot_create_schema), - rabbit_misc:ensure_ok(mnesia:start(), - cannot_start_mnesia), - create_tables(). - -move_db() -> - mnesia:stop(), - MnesiaDir = filename:dirname(dir() ++ "/"), - {{Year, Month, Day}, {Hour, Minute, Second}} = erlang:universaltime(), - BackupDir = lists:flatten( - io_lib:format("~s_~w~2..0w~2..0w~2..0w~2..0w~2..0w", - [MnesiaDir, - Year, Month, Day, Hour, Minute, Second])), - case file:rename(MnesiaDir, BackupDir) of - ok -> - %% NB: we cannot use rabbit_log here since it may not have - %% been started yet - error_logger:warning_msg("moved database from ~s to ~s~n", - [MnesiaDir, BackupDir]), - ok; - {error, Reason} -> throw({error, {cannot_backup_mnesia, - MnesiaDir, BackupDir, Reason}}) - end, - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok. - -create_tables() -> - lists:foreach(fun ({Tab, TabArgs}) -> - case mnesia:create_table(Tab, TabArgs) of - {atomic, ok} -> ok; - {aborted, Reason} -> - throw({error, {table_creation_failed, - Tab, TabArgs, Reason}}) - end - end, - table_definitions()), - ok. - -table_has_copy_type(TabDef, DiscType) -> - lists:member(node(), proplists:get_value(DiscType, TabDef, [])). - -create_local_table_copies(Type) -> - lists:foreach( - fun({Tab, TabDef}) -> - HasDiscCopies = table_has_copy_type(TabDef, disc_copies), - HasDiscOnlyCopies = table_has_copy_type(TabDef, disc_only_copies), - LocalTab = proplists:get_bool(local_content, TabDef), - StorageType = - if - Type =:= disc orelse LocalTab -> - if - HasDiscCopies -> disc_copies; - HasDiscOnlyCopies -> disc_only_copies; - true -> ram_copies - end; -%% unused code - commented out to keep dialyzer happy -%% Type =:= disc_only -> -%% if -%% HasDiscCopies or HasDiscOnlyCopies -> -%% disc_only_copies; -%% true -> ram_copies -%% end; - Type =:= ram -> - ram_copies - end, - ok = create_local_table_copy(Tab, StorageType) - end, - table_definitions()), - ok. - -create_local_table_copy(Tab, Type) -> - StorageType = mnesia:table_info(Tab, storage_type), - {atomic, ok} = - if - StorageType == unknown -> - mnesia:add_table_copy(Tab, node(), Type); - StorageType /= Type -> - mnesia:change_table_copy_type(Tab, node(), Type); - true -> {atomic, ok} - end, - ok. - -wait_for_replicated_tables() -> wait_for_tables(replicated_table_names()). - -wait_for_tables() -> wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> - case check_schema_integrity() of - ok -> - case mnesia:wait_for_tables(TableNames, 30000) of - ok -> ok; - {timeout, BadTabs} -> - throw({error, {timeout_waiting_for_tables, BadTabs}}); - {error, Reason} -> - throw({error, {failed_waiting_for_tables, Reason}}) - end; - {error, Reason} -> - throw({error, {schema_integrity_check_failed, Reason}}) - end. - -reset(Force) -> - ok = ensure_mnesia_not_running(), - Node = node(), - case Force of - true -> ok; - false -> - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - {Nodes, RunningNodes} = - try - ok = init(), - {mnesia:system_info(db_nodes) -- [Node], - mnesia:system_info(running_db_nodes) -- [Node]} - after - mnesia:stop() - end, - leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) - end, - ok = delete_cluster_nodes_config(), - %% remove persistet messages and any other garbage we find - lists:foreach(fun file:delete/1, - filelib:wildcard(dir() ++ "/*")), - ok. - -leave_cluster([], _) -> ok; -leave_cluster(Nodes, RunningNodes) -> - %% find at least one running cluster node and instruct it to - %% remove our schema copy which will in turn result in our node - %% being removed as a cluster node from the schema, with that - %% change being propagated to all nodes - case lists:any( - fun (Node) -> - case rpc:call(Node, mnesia, del_table_copy, - [schema, node()]) of - {atomic, ok} -> true; - {badrpc, nodedown} -> false; - {aborted, Reason} -> - throw({error, {failed_to_leave_cluster, - Nodes, RunningNodes, Reason}}) - end - end, - RunningNodes) of - true -> ok; - false -> throw({error, {no_running_cluster_nodes, - Nodes, RunningNodes}}) - end. diff --git a/src/rabbit_msg_file.erl b/src/rabbit_msg_file.erl deleted file mode 100644 index bf367ede..00000000 --- a/src/rabbit_msg_file.erl +++ /dev/null @@ -1,141 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_msg_file). - --export([append/3, read/2, scan/1]). - -%%---------------------------------------------------------------------------- - --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_MARKER, 255). --define(FILE_PACKING_ADJUSTMENT, (1 + ?INTEGER_SIZE_BYTES)). --define(MSG_ID_SIZE_BYTES, 16). --define(MSG_ID_SIZE_BITS, (8 * ?MSG_ID_SIZE_BYTES)). --define(SIZE_AND_MSG_ID_BYTES, (?MSG_ID_SIZE_BYTES + ?INTEGER_SIZE_BYTES)). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(io_device() :: any()). --type(msg_id() :: binary()). --type(msg() :: any()). --type(position() :: non_neg_integer()). --type(msg_size() :: non_neg_integer()). - --spec(append/3 :: (io_device(), msg_id(), msg()) -> - ({'ok', msg_size()} | {'error', any()})). --spec(read/2 :: (io_device(), msg_size()) -> - ({'ok', {msg_id(), msg()}} | {'error', any()})). --spec(scan/1 :: (io_device()) -> - {'ok', [{msg_id(), msg_size(), position()}], position()}). - --endif. - -%%---------------------------------------------------------------------------- - -append(FileHdl, MsgId, MsgBody) - when is_binary(MsgId) andalso size(MsgId) =< ?MSG_ID_SIZE_BYTES -> - MsgBodyBin = term_to_binary(MsgBody), - MsgBodyBinSize = size(MsgBodyBin), - Size = MsgBodyBinSize + ?MSG_ID_SIZE_BYTES, - case file_handle_cache:append(FileHdl, - <>) of - ok -> {ok, Size + ?FILE_PACKING_ADJUSTMENT}; - KO -> KO - end. - -read(FileHdl, TotalSize) -> - Size = TotalSize - ?FILE_PACKING_ADJUSTMENT, - BodyBinSize = Size - ?MSG_ID_SIZE_BYTES, - case file_handle_cache:read(FileHdl, TotalSize) of - {ok, <>} -> - {ok, {MsgId, binary_to_term(MsgBodyBin)}}; - KO -> KO - end. - -scan(FileHdl) -> scan(FileHdl, 0, []). - -scan(FileHdl, Offset, Acc) -> - case read_next(FileHdl, Offset) of - eof -> {ok, Acc, Offset}; - {corrupted, NextOffset} -> - scan(FileHdl, NextOffset, Acc); - {ok, {MsgId, TotalSize, NextOffset}} -> - scan(FileHdl, NextOffset, [{MsgId, TotalSize, Offset} | Acc]); - _KO -> - %% bad message, but we may still have recovered some valid messages - {ok, Acc, Offset} - end. - -read_next(FileHdl, Offset) -> - case file_handle_cache:read(FileHdl, ?SIZE_AND_MSG_ID_BYTES) of - %% Here we take option 5 from - %% http://www.erlang.org/cgi-bin/ezmlm-cgi?2:mss:1569 in which - %% we read the MsgId as a number, and then convert it back to - %% a binary in order to work around bugs in Erlang's GC. - {ok, <>} -> - case Size of - 0 -> eof; %% Nothing we can do other than stop - _ -> - TotalSize = Size + ?FILE_PACKING_ADJUSTMENT, - ExpectedAbsPos = Offset + TotalSize - 1, - case file_handle_cache:position( - FileHdl, {cur, Size - ?MSG_ID_SIZE_BYTES}) of - {ok, ExpectedAbsPos} -> - NextOffset = ExpectedAbsPos + 1, - case file_handle_cache:read(FileHdl, 1) of - {ok, - <>} -> - <> = - <>, - {ok, {MsgId, TotalSize, NextOffset}}; - {ok, _SomeOtherData} -> - {corrupted, NextOffset}; - KO -> KO - end; - {ok, _SomeOtherPos} -> - %% seek failed, so give up - eof; - KO -> KO - end - end; - Other -> Other - end. diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl deleted file mode 100644 index f362d15d..00000000 --- a/src/rabbit_msg_store.erl +++ /dev/null @@ -1,1211 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_msg_store). - --behaviour(gen_server2). - --export([start_link/3, write/2, read/2, contains/1, remove/1, release/1, - sync/2, client_init/0, client_terminate/1]). - --export([sync/0, gc_done/3]). %% internal - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, handle_pre_hibernate/1]). - --define(SERVER, ?MODULE). - --define(SYNC_INTERVAL, 5). %% milliseconds - --define(GEOMETRIC_P, 0.3). %% parameter to geometric distribution rng - -%%---------------------------------------------------------------------------- - --record(msstate, - { dir, %% store directory - index_module, %% the module for index ops - index_state, %% where are messages? - current_file, %% current file name as number - current_file_handle, %% current file handle - %% since the last fsync? - file_handle_cache, %% file handle cache - on_sync, %% pending sync requests - sync_timer_ref, %% TRef for our interval timer - sum_valid_data, %% sum of valid data in all files - sum_file_size, %% sum of file sizes - pending_gc_completion, %% things to do once GC completes - gc_active %% is the GC currently working? - }). - --record(client_msstate, - { file_handle_cache, - index_state, - index_module, - dir - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(msg_id() :: binary()). --type(msg() :: any()). --type(file_path() :: any()). --type(file_num() :: non_neg_integer()). --type(client_msstate() :: #client_msstate { file_handle_cache :: dict(), - index_state :: any(), - index_module :: atom(), - dir :: file_path() }). - --spec(start_link/3 :: - (file_path(), - (fun ((A) -> 'finished' | {msg_id(), non_neg_integer(), A})), A) -> - {'ok', pid()} | 'ignore' | {'error', any()}). --spec(write/2 :: (msg_id(), msg()) -> 'ok'). -%% -spec(read/1 :: (msg_id()) -> {'ok', msg()} | 'not_found'). --spec(read/2 :: (msg_id(), client_msstate()) -> - {{'ok', msg()} | 'not_found', client_msstate()}). --spec(contains/1 :: (msg_id()) -> boolean()). --spec(remove/1 :: ([msg_id()]) -> 'ok'). --spec(release/1 :: ([msg_id()]) -> 'ok'). --spec(sync/2 :: ([msg_id()], fun (() -> any())) -> 'ok'). --spec(gc_done/3 :: (non_neg_integer(), file_num(), file_num()) -> 'ok'). --spec(client_init/0 :: () -> client_msstate()). --spec(client_terminate/1 :: (client_msstate()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - -%% We run GC whenever (garbage / sum_file_size) > ?GARBAGE_FRACTION -%% It is not recommended to set this to < 0.5 --define(GARBAGE_FRACTION, 0.5). - -%% The components: -%% -%% MsgLocation: this is an ets table which contains: -%% {MsgId, RefCount, File, Offset, TotalSize} -%% FileSummary: this is an ets table which contains: -%% {File, ValidTotalSize, ContiguousTop, Left, Right} -%% -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the MsgLocation table); how much useful data is in each file and -%% which files are on the left and right of each other. This is the -%% purpose of the FileSummary table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file, whilst ContiguousTop contains the amount of -%% valid data right at the start of each file. These are needed for -%% garbage collection. -%% -%% When we discover that either a file is now empty or that it can be -%% combined with the useful data in either its left or right file, we -%% compact the two files together. This keeps disk utilisation high -%% and aids performance. -%% -%% Given the compaction between two files, the left file is considered -%% the ultimate destination for the good data in the right file. If -%% necessary, the good data in the left file which is fragmented -%% throughout the file is written out to a temporary file, then read -%% back in to form a contiguous chunk of good data at the start of the -%% left file. Thus the left file is garbage collected and -%% compacted. Then the good data from the right file is copied onto -%% the end of the left file. MsgLocation and FileSummary tables are -%% updated. -%% -%% On startup, we scan the files we discover, dealing with the -%% possibilites of a crash have occured during a compaction (this -%% consists of tidyup - the compaction is deliberately designed such -%% that data is duplicated on disk rather than risking it being lost), -%% and rebuild the ets tables (MsgLocation, FileSummary). -%% -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten (yes, this is -%% the data the size of which is tracked by the ContiguousTop -%% variable. Judicious use of a mirror is required). -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). -%% -%% Messages are reference-counted. When a message with the same id is -%% written several times we only store it once, and only remove it -%% from the store when it has been removed the same number of times. -%% -%% The reference counts do not persist. Therefore the initialisation -%% function must be provided with a generator that produces ref count -%% deltas for all recovered messages. -%% -%% Read messages with a reference count greater than one are entered -%% into a message cache. The purpose of the cache is not especially -%% performance, though it can help there too, but prevention of memory -%% explosion. It ensures that as messages with a high reference count -%% are read from several processes they are read back as the same -%% binary object rather than multiples of identical binary -%% objects. - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -start_link(Dir, MsgRefDeltaGen, MsgRefDeltaGenInit) -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, - [Dir, MsgRefDeltaGen, MsgRefDeltaGenInit], - [{timeout, infinity}]). - -write(MsgId, Msg) -> gen_server2:cast(?SERVER, {write, MsgId, Msg}). - -read(MsgId, CState) -> - Defer = fun() -> - {gen_server2:call(?SERVER, {read, MsgId}, infinity), CState} - end, - case index_lookup(MsgId, CState) of - not_found -> - Defer(); - #msg_location { ref_count = RefCount, - file = File, - offset = Offset, - total_size = TotalSize } -> - case fetch_and_increment_cache(MsgId) of - not_found -> - [#file_summary { locked = Locked, right = Right }] = - ets:lookup(?FILE_SUMMARY_ETS_NAME, File), - case Right =:= undefined orelse Locked =:= true of - true -> - Defer(); - false -> - ets:update_counter(?FILE_SUMMARY_ETS_NAME, File, - {#file_summary.readers, 1}), - Release = fun() -> - ets:update_counter( - ?FILE_SUMMARY_ETS_NAME, File, - {#file_summary.readers, -1}) - end, - %% If a GC hasn't already started, it - %% won't start now. Need to check again to - %% see if we've been locked in the - %% meantime, between lookup and - %% update_counter (thus GC actually in - %% progress). - [#file_summary { locked = Locked2 }] = - ets:lookup(?FILE_SUMMARY_ETS_NAME, File), - case Locked2 of - true -> - Release(), - Defer(); - false -> - %% Ok, we're definitely safe to - %% continue - a GC can't start up - %% now, and isn't running, so - %% nothing will tell us from now - %% on to close the handle if it's - %% already open. (Well, a GC could - %% start, and could put close - %% entries into the ets table, but - %% the GC will wait until we're - %% done here before doing any real - %% work.) - - %% This is fine to fail (already - %% exists) - ets:insert_new(?FILE_HANDLES_ETS_NAME, - {{self(), File}, open}), - CState1 = close_all_indicated(CState), - {Hdl, CState3} = - get_read_handle(File, CState1), - {ok, Offset} = - file_handle_cache:position(Hdl, Offset), - {ok, {MsgId, Msg}} = - case rabbit_msg_file:read(Hdl, TotalSize) of - {ok, {MsgId, _}} = Obj -> Obj; - Rest -> - throw({error, - {misread, - [{old_cstate, CState1}, - {file_num, File}, - {offset, Offset}, - {read, Rest}, - {proc_dict, get()} - ]}}) - end, - Release(), - ok = case RefCount > 1 of - true -> - insert_into_cache(MsgId, Msg); - false -> - %% It's not in the - %% cache and we only - %% have one reference - %% to the message. So - %% don't bother - %% putting it in the - %% cache. - ok - end, - {{ok, Msg}, CState3} - end - end; - Msg -> - {{ok, Msg}, CState} - end - end. - -close_all_indicated(CState) -> - Objs = ets:match_object(?FILE_HANDLES_ETS_NAME, {{self(), '_'}, close}), - lists:foldl(fun ({Key = {_Self, File}, close}, CStateM) -> - true = ets:delete(?FILE_HANDLES_ETS_NAME, Key), - close_handle(File, CStateM) - end, CState, Objs). - -contains(MsgId) -> gen_server2:call(?SERVER, {contains, MsgId}, infinity). -remove(MsgIds) -> gen_server2:cast(?SERVER, {remove, MsgIds}). -release(MsgIds) -> gen_server2:cast(?SERVER, {release, MsgIds}). -sync(MsgIds, K) -> gen_server2:cast(?SERVER, {sync, MsgIds, K}). -sync() -> gen_server2:pcast(?SERVER, 9, sync). %% internal - -gc_done(Reclaimed, Source, Destination) -> - gen_server2:pcast(?SERVER, 9, {gc_done, Reclaimed, Source, Destination}). - -client_init() -> - {IState, IModule, Dir} = - gen_server2:call(?SERVER, new_client_state, infinity), - #client_msstate { file_handle_cache = dict:new(), - index_state = IState, - index_module = IModule, - dir = Dir }. - -client_terminate(CState) -> - close_all_handles(CState), - ok. - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([Dir, MsgRefDeltaGen, MsgRefDeltaGenInit]) -> - process_flag(trap_exit, true), - - ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - - {ok, IndexModule} = application:get_env(msg_store_index_module), - rabbit_log:info("Using ~p to provide index for message store~n", - [IndexModule]), - IndexState = IndexModule:init(Dir), - - InitFile = 0, - ?FILE_SUMMARY_ETS_NAME = ets:new(?FILE_SUMMARY_ETS_NAME, - [ordered_set, public, named_table, - {keypos, #file_summary.file}]), - ?CACHE_ETS_NAME = ets:new(?CACHE_ETS_NAME, [set, public, named_table]), - ?FILE_HANDLES_ETS_NAME = ets:new(?FILE_HANDLES_ETS_NAME, - [ordered_set, public, named_table]), - State = - #msstate { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - current_file = InitFile, - current_file_handle = undefined, - file_handle_cache = dict:new(), - on_sync = [], - sync_timer_ref = undefined, - sum_valid_data = 0, - sum_file_size = 0, - pending_gc_completion = [], - gc_active = false - }, - - ok = count_msg_refs(MsgRefDeltaGen, MsgRefDeltaGenInit, State), - FileNames = - sort_file_names(filelib:wildcard("*" ++ ?FILE_EXTENSION, Dir)), - TmpFileNames = - sort_file_names(filelib:wildcard("*" ++ ?FILE_EXTENSION_TMP, Dir)), - ok = recover_crashed_compactions(Dir, FileNames, TmpFileNames), - %% There should be no more tmp files now, so go ahead and load the - %% whole lot - Files = [filename_to_num(FileName) || FileName <- FileNames], - {Offset, State1 = #msstate { current_file = CurFile }} = - build_index(Files, State), - - %% read is only needed so that we can seek - {ok, FileHdl} = rabbit_msg_store_misc:open_file( - Dir, rabbit_msg_store_misc:filenum_to_name(CurFile), - [read | ?WRITE_MODE]), - {ok, Offset} = file_handle_cache:position(FileHdl, Offset), - ok = file_handle_cache:truncate(FileHdl), - - {ok, _Pid} = rabbit_msg_store_gc:start_link(Dir, IndexState, IndexModule), - - {ok, State1 #msstate { current_file_handle = FileHdl }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({read, MsgId}, From, State) -> - State1 = read_message(MsgId, From, State), - noreply(State1); - -handle_call({contains, MsgId}, From, State) -> - State1 = contains_message(MsgId, From, State), - noreply(State1); - -handle_call(new_client_state, _From, - State = #msstate { index_state = IndexState, dir = Dir, - index_module = IndexModule }) -> - reply({IndexState, IndexModule, Dir}, State). - -handle_cast({write, MsgId, Msg}, - State = #msstate { current_file_handle = CurHdl, - current_file = CurFile, - sum_valid_data = SumValid, - sum_file_size = SumFileSize }) -> - case index_lookup(MsgId, State) of - not_found -> - %% New message, lots to do - {ok, CurOffset} = file_handle_cache:current_virtual_offset(CurHdl), - {ok, TotalSize} = rabbit_msg_file:append(CurHdl, MsgId, Msg), - ok = index_insert(#msg_location { - msg_id = MsgId, ref_count = 1, file = CurFile, - offset = CurOffset, total_size = TotalSize }, - State), - [FSEntry = #file_summary { valid_total_size = ValidTotalSize, - contiguous_top = ContiguousTop, - right = undefined, - locked = false, - file_size = FileSize }] = - ets:lookup(?FILE_SUMMARY_ETS_NAME, CurFile), - ValidTotalSize1 = ValidTotalSize + TotalSize, - ContiguousTop1 = if CurOffset =:= ContiguousTop -> - %% can't be any holes in this file - ValidTotalSize1; - true -> ContiguousTop - end, - true = ets:insert(?FILE_SUMMARY_ETS_NAME, - FSEntry #file_summary { - valid_total_size = ValidTotalSize1, - contiguous_top = ContiguousTop1, - file_size = FileSize + TotalSize }), - NextOffset = CurOffset + TotalSize, - noreply(maybe_compact(maybe_roll_to_new_file( - NextOffset, State #msstate - { sum_valid_data = SumValid + TotalSize, - sum_file_size = SumFileSize + TotalSize } - ))); - #msg_location { ref_count = RefCount } -> - %% We already know about it, just update counter. Only - %% update field otherwise bad interaction with concurrent GC - ok = index_update_fields(MsgId, - {#msg_location.ref_count, RefCount + 1}, - State), - noreply(State) - end; - -handle_cast({remove, MsgIds}, State) -> - State1 = lists:foldl( - fun (MsgId, State2) -> remove_message(MsgId, State2) end, - State, MsgIds), - noreply(maybe_compact(State1)); - -handle_cast({release, MsgIds}, State) -> - lists:foreach(fun (MsgId) -> decrement_cache(MsgId) end, MsgIds), - noreply(State); - -handle_cast({sync, MsgIds, K}, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - on_sync = Syncs }) -> - {ok, SyncOffset} = file_handle_cache:last_sync_offset(CurHdl), - case lists:any(fun (MsgId) -> - #msg_location { file = File, offset = Offset } = - index_lookup(MsgId, State), - File =:= CurFile andalso Offset >= SyncOffset - end, MsgIds) of - false -> K(), - noreply(State); - true -> noreply(State #msstate { on_sync = [K | Syncs] }) - end; - -handle_cast(sync, State) -> - noreply(sync(State)); - -handle_cast({gc_done, Reclaimed, Source, Dest}, - State = #msstate { sum_file_size = SumFileSize, - gc_active = {Source, Dest} }) -> - %% GC done, so now ensure that any clients that have open fhs to - %% those files close them before using them again. This has to be - %% done here, and not when starting up the GC, because if done - %% when starting up the GC, the client could find the close, and - %% close and reopen the fh, whilst the GC is waiting for readers - %% to disappear, before it's actually done the GC. - true = mark_handle_to_close(Source), - true = mark_handle_to_close(Dest), - %% we always move data left, so Source has gone and was on the - %% right, so need to make dest = source.right.left, and also - %% dest.right = source.right - [#file_summary { left = Dest, right = SourceRight, locked = true }] = - ets:lookup(?FILE_SUMMARY_ETS_NAME, Source), - %% this could fail if SourceRight == undefined - ets:update_element(?FILE_SUMMARY_ETS_NAME, SourceRight, - {#file_summary.left, Dest}), - true = ets:update_element(?FILE_SUMMARY_ETS_NAME, Dest, - [{#file_summary.locked, false}, - {#file_summary.right, SourceRight}]), - true = ets:delete(?FILE_SUMMARY_ETS_NAME, Source), - noreply(run_pending( - State #msstate { sum_file_size = SumFileSize - Reclaimed, - gc_active = false })). - -handle_info(timeout, State) -> - noreply(sync(State)); - -handle_info({file_handle_cache, maximum_eldest_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}. - -terminate(_Reason, State = #msstate { index_state = IndexState, - index_module = IndexModule, - current_file_handle = FileHdl }) -> - %% stop the gc first, otherwise it could be working and we pull - %% out the ets tables from under it. - ok = rabbit_msg_store_gc:stop(), - State1 = case FileHdl of - undefined -> State; - _ -> State2 = sync(State), - file_handle_cache:close(FileHdl), - State2 - end, - State3 = close_all_handles(State1), - ets:delete(?FILE_SUMMARY_ETS_NAME), - ets:delete(?CACHE_ETS_NAME), - ets:delete(?FILE_HANDLES_ETS_NAME), - IndexModule:terminate(IndexState), - State3 #msstate { index_state = undefined, - current_file_handle = undefined }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_pre_hibernate(State) -> - {hibernate, maybe_compact(State)}. - -%%---------------------------------------------------------------------------- -%% general helper functions -%%---------------------------------------------------------------------------- - -noreply(State) -> - {State1, Timeout} = next_state(State), - {noreply, State1, Timeout}. - -reply(Reply, State) -> - {State1, Timeout} = next_state(State), - {reply, Reply, State1, Timeout}. - -next_state(State = #msstate { on_sync = [], sync_timer_ref = undefined }) -> - {State, hibernate}; -next_state(State = #msstate { sync_timer_ref = undefined }) -> - {start_sync_timer(State), 0}; -next_state(State = #msstate { on_sync = [] }) -> - {stop_sync_timer(State), hibernate}; -next_state(State) -> - {State, 0}. - -start_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, sync, []), - State #msstate { sync_timer_ref = TRef }. - -stop_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - State; -stop_sync_timer(State = #msstate { sync_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #msstate { sync_timer_ref = undefined }. - -filename_to_num(FileName) -> list_to_integer(filename:rootname(FileName)). - -sort_file_names(FileNames) -> - lists:sort(fun (A, B) -> filename_to_num(A) < filename_to_num(B) end, - FileNames). - -sync(State = #msstate { current_file_handle = CurHdl, - on_sync = Syncs }) -> - State1 = stop_sync_timer(State), - case Syncs of - [] -> State1; - _ -> - ok = file_handle_cache:sync(CurHdl), - lists:foreach(fun (K) -> K() end, lists:reverse(Syncs)), - State1 #msstate { on_sync = [] } - end. - -read_message(MsgId, From, State = - #msstate { current_file = CurFile, - current_file_handle = CurHdl }) -> - case index_lookup(MsgId, State) of - not_found -> gen_server2:reply(From, not_found), - State; - #msg_location { ref_count = RefCount, - file = File, - offset = Offset, - total_size = TotalSize } -> - case fetch_and_increment_cache(MsgId) of - not_found -> - [#file_summary { locked = Locked }] = - ets:lookup(?FILE_SUMMARY_ETS_NAME, File), - case Locked of - true -> - add_to_pending_gc_completion({read, MsgId, From}, - State); - false -> - ok = case CurFile =:= File andalso {ok, Offset} >= - file_handle_cache:current_raw_offset( - CurHdl) of - true -> file_handle_cache:flush(CurHdl); - false -> ok - end, - {Hdl, State1} = get_read_handle(File, State), - {ok, Offset} = - file_handle_cache:position(Hdl, Offset), - {ok, {MsgId, Msg}} = - case rabbit_msg_file:read(Hdl, TotalSize) of - {ok, {MsgId, _}} = Obj -> Obj; - Rest -> - throw({error, {misread, - [{old_state, State}, - {file_num, File}, - {offset, Offset}, - {read, Rest}, - {proc_dict, get()} - ]}}) - end, - ok = case RefCount > 1 of - true -> - insert_into_cache(MsgId, Msg); - false -> - %% it's not in the cache and - %% we only have one reference - %% to the message. So don't - %% bother putting it in the - %% cache. - ok - end, - gen_server2:reply(From, {ok, Msg}), - State1 - end; - Msg -> - gen_server2:reply(From, {ok, Msg}), - State - end - end. - -contains_message(MsgId, From, State = #msstate { gc_active = GCActive }) -> - case index_lookup(MsgId, State) of - not_found -> - gen_server2:reply(From, false), - State; - #msg_location { file = File } -> - case GCActive of - {A, B} when File == A orelse File == B -> - add_to_pending_gc_completion( - {contains, MsgId, From}, State); - _ -> - gen_server2:reply(From, true), - State - end - end. - -remove_message(MsgId, State = #msstate { sum_valid_data = SumValid }) -> - #msg_location { ref_count = RefCount, file = File, - offset = Offset, total_size = TotalSize } = - index_lookup(MsgId, State), - case RefCount of - 1 -> - ok = remove_cache_entry(MsgId), - [FSEntry = #file_summary { valid_total_size = ValidTotalSize, - contiguous_top = ContiguousTop, - locked = Locked }] = - ets:lookup(?FILE_SUMMARY_ETS_NAME, File), - case Locked of - true -> - add_to_pending_gc_completion({remove, MsgId}, State); - false -> - ok = index_delete(MsgId, State), - ContiguousTop1 = lists:min([ContiguousTop, Offset]), - ValidTotalSize1 = ValidTotalSize - TotalSize, - true = ets:insert(?FILE_SUMMARY_ETS_NAME, - FSEntry #file_summary { - valid_total_size = ValidTotalSize1, - contiguous_top = ContiguousTop1 }), - State1 = delete_file_if_empty(File, State), - State1 #msstate { sum_valid_data = SumValid - TotalSize } - end; - _ when 1 < RefCount -> - ok = decrement_cache(MsgId), - %% only update field, otherwise bad interaction with concurrent GC - ok = index_update_fields(MsgId, - {#msg_location.ref_count, RefCount - 1}, - State), - State - end. - -add_to_pending_gc_completion( - Op, State = #msstate { pending_gc_completion = Pending }) -> - State #msstate { pending_gc_completion = [Op | Pending] }. - -run_pending(State = #msstate { pending_gc_completion = [] }) -> - State; -run_pending(State = #msstate { pending_gc_completion = Pending }) -> - State1 = State #msstate { pending_gc_completion = [] }, - lists:foldl(fun run_pending/2, State1, lists:reverse(Pending)). - -run_pending({read, MsgId, From}, State) -> - read_message(MsgId, From, State); -run_pending({contains, MsgId, From}, State) -> - contains_message(MsgId, From, State); -run_pending({remove, MsgId}, State) -> - remove_message(MsgId, State). - -close_handle(Key, CState = #client_msstate { file_handle_cache = FHC }) -> - CState #client_msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, State = #msstate { file_handle_cache = FHC }) -> - State #msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, FHC) -> - case dict:find(Key, FHC) of - {ok, Hdl} -> - ok = file_handle_cache:close(Hdl), - dict:erase(Key, FHC); - error -> FHC - end. - -close_all_handles(CState = #client_msstate { file_handle_cache = FHC }) -> - Self = self(), - ok = dict:fold(fun (File, Hdl, ok) -> - true = - ets:delete(?FILE_HANDLES_ETS_NAME, {Self, File}), - file_handle_cache:close(Hdl) - end, ok, FHC), - CState #client_msstate { file_handle_cache = dict:new() }; - -close_all_handles(State = #msstate { file_handle_cache = FHC }) -> - ok = dict:fold(fun (_Key, Hdl, ok) -> - file_handle_cache:close(Hdl) - end, ok, FHC), - State #msstate { file_handle_cache = dict:new() }. - -get_read_handle(FileNum, CState = #client_msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, CState #client_msstate { file_handle_cache = FHC2 }}; - -get_read_handle(FileNum, State = #msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, State #msstate { file_handle_cache = FHC2 }}. - -get_read_handle(FileNum, FHC, Dir) -> - case dict:find(FileNum, FHC) of - {ok, Hdl} -> - {Hdl, FHC}; - error -> - {ok, Hdl} = rabbit_msg_store_misc:open_file( - Dir, rabbit_msg_store_misc:filenum_to_name(FileNum), - ?READ_MODE), - {Hdl, dict:store(FileNum, Hdl, FHC) } - end. - -%%---------------------------------------------------------------------------- -%% message cache helper functions -%%---------------------------------------------------------------------------- - -remove_cache_entry(MsgId) -> - true = ets:delete(?CACHE_ETS_NAME, MsgId), - ok. - -fetch_and_increment_cache(MsgId) -> - case ets:lookup(?CACHE_ETS_NAME, MsgId) of - [] -> - not_found; - [{_MsgId, Msg, _RefCount}] -> - try - ets:update_counter(?CACHE_ETS_NAME, MsgId, {3, 1}) - catch error:badarg -> - %% someone has deleted us in the meantime, insert us - ok = insert_into_cache(MsgId, Msg) - end, - Msg - end. - -decrement_cache(MsgId) -> - true = try case ets:update_counter(?CACHE_ETS_NAME, MsgId, {3, -1}) of - N when N =< 0 -> true = ets:delete(?CACHE_ETS_NAME, MsgId); - _N -> true - end - catch error:badarg -> - %% MsgId is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message in mixed queue) - true - end, - ok. - -insert_into_cache(MsgId, Msg) -> - case ets:insert_new(?CACHE_ETS_NAME, {MsgId, Msg, 1}) of - true -> ok; - false -> try - ets:update_counter(?CACHE_ETS_NAME, MsgId, {3, 1}), - ok - catch error:badarg -> - insert_into_cache(MsgId, Msg) - end - end. - -%%---------------------------------------------------------------------------- -%% index -%%---------------------------------------------------------------------------- - -index_lookup(Key, #client_msstate { index_module = Index, index_state = State }) -> - Index:lookup(Key, State); - -index_lookup(Key, #msstate { index_module = Index, index_state = State }) -> - Index:lookup(Key, State). - -index_insert(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:insert(Obj, State). - -index_update(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:update(Obj, State). - -index_update_fields(Key, Updates, - #msstate { index_module = Index, index_state = State }) -> - Index:update_fields(Key, Updates, State). - -index_delete(Key, #msstate { index_module = Index, index_state = State }) -> - Index:delete(Key, State). - -index_delete_by_file(File, #msstate { index_module = Index, - index_state = State }) -> - Index:delete_by_file(File, State). - -%%---------------------------------------------------------------------------- -%% recovery -%%---------------------------------------------------------------------------- - -count_msg_refs(Gen, Seed, State) -> - case Gen(Seed) of - finished -> ok; - {_MsgId, 0, Next} -> count_msg_refs(Gen, Next, State); - {MsgId, Delta, Next} -> - ok = case index_lookup(MsgId, State) of - not_found -> - index_insert(#msg_location { msg_id = MsgId, - ref_count = Delta }, - State); - StoreEntry = #msg_location { ref_count = RefCount } -> - NewRefCount = RefCount + Delta, - case NewRefCount of - 0 -> index_delete(MsgId, State); - _ -> index_update(StoreEntry #msg_location { - ref_count = NewRefCount }, - State) - end - end, - count_msg_refs(Gen, Next, State) - end. - -recover_crashed_compactions(Dir, FileNames, TmpFileNames) -> - lists:foreach(fun (TmpFileName) -> - ok = recover_crashed_compactions1( - Dir, FileNames, TmpFileName) - end, TmpFileNames), - ok. - -recover_crashed_compactions1(Dir, FileNames, TmpFileName) -> - NonTmpRelatedFileName = filename:rootname(TmpFileName) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFileName, FileNames), - {ok, UncorruptedMessagesTmp, MsgIdsTmp} = - scan_file_for_valid_messages_msg_ids(Dir, TmpFileName), - {ok, UncorruptedMessages, MsgIds} = - scan_file_for_valid_messages_msg_ids(Dir, NonTmpRelatedFileName), - %% 1) It's possible that everything in the tmp file is also in the - %% main file such that the main file is (prefix ++ - %% tmpfile). This means that compaction failed immediately - %% prior to the final step of deleting the tmp file. Plan: just - %% delete the tmp file - %% 2) It's possible that everything in the tmp file is also in the - %% main file but with holes throughout (or just somthing like - %% main = (prefix ++ hole ++ tmpfile)). This means that - %% compaction wrote out the tmp file successfully and then - %% failed. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 3) It's possible that everything in the tmp file is also in the - %% main file but such that the main file does not end with tmp - %% file (and there are valid messages in the suffix; main = - %% (prefix ++ tmpfile[with extra holes?] ++ suffix)). This - %% means that compaction failed as we were writing out the tmp - %% file. Plan: just delete the tmp file and allow the - %% compaction to eventually be triggered later - %% 4) It's possible that there are messages in the tmp file which - %% are not in the main file. This means that writing out the - %% tmp file succeeded, but then we failed as we were copying - %% them back over to the main file, after truncating the main - %% file. As the main file has already been truncated, it should - %% consist only of valid messages. Plan: Truncate the main file - %% back to before any of the files in the tmp file and copy - %% them over again - TmpPath = rabbit_msg_store_misc:form_filename(Dir, TmpFileName), - case is_sublist(MsgIdsTmp, MsgIds) of - true -> %% we're in case 1, 2 or 3 above. Just delete the tmp file - %% note this also catches the case when the tmp file - %% is empty - ok = file:delete(TmpPath); - false -> - %% We're in case 4 above. We only care about the inital - %% msgs in main file that are not in the tmp file. If - %% there are no msgs in the tmp file then we would be in - %% the 'true' branch of this case, so we know the - %% lists:last call is safe. - EldestTmpMsgId = lists:last(MsgIdsTmp), - {MsgIds1, UncorruptedMessages1} - = case lists:splitwith( - fun (MsgId) -> MsgId /= EldestTmpMsgId end, MsgIds) of - {_MsgIds, []} -> %% no msgs from tmp in main - {MsgIds, UncorruptedMessages}; - {Dropped, [EldestTmpMsgId | Rest]} -> - %% Msgs in Dropped are in tmp, so forget them. - %% *cry*. Lists indexed from 1. - {Rest, lists:sublist(UncorruptedMessages, - 2 + length(Dropped), - length(Rest))} - end, - %% The main file prefix should be contiguous - {Top, MsgIds1} = find_contiguous_block_prefix( - lists:reverse(UncorruptedMessages1)), - %% we should have that none of the messages in the prefix - %% are in the tmp file - true = is_disjoint(MsgIds1, MsgIdsTmp), - %% must open with read flag, otherwise will stomp over contents - {ok, MainHdl} = rabbit_msg_store_misc:open_file( - Dir, NonTmpRelatedFileName, [read | ?WRITE_MODE]), - %% Wipe out any rubbish at the end of the file. Remember - %% the head of the list will be the highest entry in the - %% file. - [{_, TmpTopTotalSize, TmpTopOffset}|_] = UncorruptedMessagesTmp, - TmpSize = TmpTopOffset + TmpTopTotalSize, - %% Extend the main file as big as necessary in a single - %% move. If we run out of disk space, this truncate could - %% fail, but we still aren't risking losing data - ok = rabbit_msg_store_misc:truncate_and_extend_file( - MainHdl, Top, Top + TmpSize), - {ok, TmpHdl} = rabbit_msg_store_misc:open_file( - Dir, TmpFileName, ?READ_AHEAD_MODE), - {ok, TmpSize} = file_handle_cache:copy(TmpHdl, MainHdl, TmpSize), - ok = file_handle_cache:close(MainHdl), - ok = file_handle_cache:delete(TmpHdl), - - {ok, _MainMessages, MsgIdsMain} = - scan_file_for_valid_messages_msg_ids( - Dir, NonTmpRelatedFileName), - %% check that everything in MsgIds1 is in MsgIdsMain - true = is_sublist(MsgIds1, MsgIdsMain), - %% check that everything in MsgIdsTmp is in MsgIdsMain - true = is_sublist(MsgIdsTmp, MsgIdsMain) - end, - ok. - -is_sublist(SmallerL, BiggerL) -> - lists:all(fun (Item) -> lists:member(Item, BiggerL) end, SmallerL). - -is_disjoint(SmallerL, BiggerL) -> - lists:all(fun (Item) -> not lists:member(Item, BiggerL) end, SmallerL). - -scan_file_for_valid_messages_msg_ids(Dir, FileName) -> - {ok, Messages, _FileSize} = - rabbit_msg_store_misc:scan_file_for_valid_messages(Dir, FileName), - {ok, Messages, [MsgId || {MsgId, _TotalSize, _FileOffset} <- Messages]}. - -%% Takes the list in *ascending* order (i.e. eldest message -%% first). This is the opposite of what scan_file_for_valid_messages -%% produces. The list of msgs that is produced is youngest first. -find_contiguous_block_prefix([]) -> {0, []}; -find_contiguous_block_prefix(List) -> - find_contiguous_block_prefix(List, 0, []). - -find_contiguous_block_prefix([], ExpectedOffset, MsgIds) -> - {ExpectedOffset, MsgIds}; -find_contiguous_block_prefix([{MsgId, TotalSize, ExpectedOffset} | Tail], - ExpectedOffset, MsgIds) -> - ExpectedOffset1 = ExpectedOffset + TotalSize, - find_contiguous_block_prefix(Tail, ExpectedOffset1, [MsgId | MsgIds]); -find_contiguous_block_prefix([_MsgAfterGap | _Tail], ExpectedOffset, MsgIds) -> - {ExpectedOffset, MsgIds}. - -build_index([], State) -> - build_index(undefined, [State #msstate.current_file], State); -build_index(Files, State) -> - {Offset, State1} = build_index(undefined, Files, State), - {Offset, lists:foldl(fun delete_file_if_empty/2, State1, Files)}. - -build_index(Left, [], State) -> - ok = index_delete_by_file(undefined, State), - Offset = case ets:lookup(?FILE_SUMMARY_ETS_NAME, Left) of - [] -> 0; - [#file_summary { file_size = FileSize }] -> FileSize - end, - {Offset, State #msstate { current_file = Left }}; -build_index(Left, [File|Files], - State = #msstate { dir = Dir, sum_valid_data = SumValid, - sum_file_size = SumFileSize }) -> - {ok, Messages, FileSize} = - rabbit_msg_store_misc:scan_file_for_valid_messages( - Dir, rabbit_msg_store_misc:filenum_to_name(File)), - {ValidMessages, ValidTotalSize} = - lists:foldl( - fun (Obj = {MsgId, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case index_lookup(MsgId, State) of - not_found -> {VMAcc, VTSAcc}; - StoreEntry -> - ok = index_update(StoreEntry #msg_location { - file = File, offset = Offset, - total_size = TotalSize }, - State), - {[Obj | VMAcc], VTSAcc + TotalSize} - end - end, {[], 0}, Messages), - %% foldl reverses lists, find_contiguous_block_prefix needs - %% msgs eldest first, so, ValidMessages is the right way round - {ContiguousTop, _} = find_contiguous_block_prefix(ValidMessages), - {Right, FileSize1} = - case Files of - %% if it's the last file, we'll truncate to remove any - %% rubbish above the last valid message. This affects the - %% file size. - [] -> {undefined, case ValidMessages of - [] -> 0; - _ -> {_MsgId, TotalSize, Offset} = - lists:last(ValidMessages), - Offset + TotalSize - end}; - [F|_] -> {F, FileSize} - end, - true = - ets:insert_new(?FILE_SUMMARY_ETS_NAME, #file_summary { - file = File, valid_total_size = ValidTotalSize, - contiguous_top = ContiguousTop, locked = false, - left = Left, right = Right, file_size = FileSize1, - readers = 0 }), - build_index(File, Files, - State #msstate { sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize1 }). - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -%%---------------------------------------------------------------------------- - -maybe_roll_to_new_file(Offset, - State = #msstate { dir = Dir, - current_file_handle = CurHdl, - current_file = CurFile }) - when Offset >= ?FILE_SIZE_LIMIT -> - State1 = sync(State), - ok = file_handle_cache:close(CurHdl), - NextFile = CurFile + 1, - {ok, NextHdl} = rabbit_msg_store_misc:open_file( - Dir, rabbit_msg_store_misc:filenum_to_name(NextFile), - ?WRITE_MODE), - true = ets:insert_new( - ?FILE_SUMMARY_ETS_NAME, #file_summary { - file = NextFile, valid_total_size = 0, contiguous_top = 0, - left = CurFile, right = undefined, file_size = 0, - locked = false, readers = 0 }), - true = ets:update_element(?FILE_SUMMARY_ETS_NAME, CurFile, - {#file_summary.right, NextFile}), - State1 #msstate { current_file_handle = NextHdl, - current_file = NextFile }; -maybe_roll_to_new_file(_, State) -> - State. - -maybe_compact(State = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize, - gc_active = false }) - when (SumFileSize - SumValid) / SumFileSize > ?GARBAGE_FRACTION -> - First = ets:first(?FILE_SUMMARY_ETS_NAME), - N = random_distributions:geometric(?GEOMETRIC_P), - case find_files_to_gc(N, First) of - undefined -> - State; - {Source, Dest} -> - State1 = close_handle(Source, close_handle(Dest, State)), - true = ets:update_element(?FILE_SUMMARY_ETS_NAME, Source, - {#file_summary.locked, true}), - true = ets:update_element(?FILE_SUMMARY_ETS_NAME, Dest, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:gc(Source, Dest), - State1 #msstate { gc_active = {Source, Dest} } - end; -maybe_compact(State) -> - State. - -mark_handle_to_close(File) -> - lists:foldl( - fun ({Key, open}, true) -> - try - true = ets:update_element(?FILE_HANDLES_ETS_NAME, - Key, {2, close}) - catch error:badarg -> %% client has deleted concurrently, no prob - true - end - end, - true, ets:match_object(?FILE_HANDLES_ETS_NAME, {{'_', File}, open})). - -find_files_to_gc(_N, '$end_of_table') -> - undefined; -find_files_to_gc(N, First) -> - [FirstObj = #file_summary { right = Right }] = - ets:lookup(?FILE_SUMMARY_ETS_NAME, First), - Pairs = find_files_to_gc(N, FirstObj, - ets:lookup(?FILE_SUMMARY_ETS_NAME, Right), []), - case Pairs of - [] -> undefined; - [Pair] -> Pair; - _ -> M = 1 + (N rem length(Pairs)), - lists:nth(M, Pairs) - end. - -find_files_to_gc(_N, #file_summary {}, [], Pairs) -> - lists:reverse(Pairs); -find_files_to_gc(N, - #file_summary { right = Source, file = Dest, - valid_total_size = DestValid }, - [SourceObj = #file_summary { left = Dest, right = SourceRight, - valid_total_size = SourceValid, - file = Source }], - Pairs) when DestValid + SourceValid =< ?FILE_SIZE_LIMIT andalso - not is_atom(SourceRight) -> - Pair = {Source, Dest}, - case N == 1 of - true -> [Pair]; - false -> find_files_to_gc((N - 1), SourceObj, - ets:lookup(?FILE_SUMMARY_ETS_NAME, SourceRight), - [Pair | Pairs]) - end; -find_files_to_gc(N, _Left, - [Right = #file_summary { right = RightRight }], Pairs) -> - find_files_to_gc( - N, Right, ets:lookup(?FILE_SUMMARY_ETS_NAME, RightRight), Pairs). - -delete_file_if_empty(File, State = #msstate { current_file = File }) -> - State; -delete_file_if_empty(File, State = - #msstate { dir = Dir, sum_file_size = SumFileSize }) -> - [#file_summary { valid_total_size = ValidData, file_size = FileSize, - left = Left, right = Right, locked = false }] - = ets:lookup(?FILE_SUMMARY_ETS_NAME, File), - case ValidData of - %% we should NEVER find the current file in here hence right - %% should always be a file, not undefined - 0 -> case {Left, Right} of - {undefined, _} when not is_atom(Right) -> - %% the eldest file is empty. - true = ets:update_element( - ?FILE_SUMMARY_ETS_NAME, Right, - {#file_summary.left, undefined}); - {_, _} when not is_atom(Right) -> - true = ets:update_element(?FILE_SUMMARY_ETS_NAME, Right, - {#file_summary.left, Left}), - true = ets:update_element(?FILE_SUMMARY_ETS_NAME, Left, - {#file_summary.right, Right}) - end, - true = mark_handle_to_close(File), - true = ets:delete(?FILE_SUMMARY_ETS_NAME, File), - State1 = close_handle(File, State), - ok = file:delete(rabbit_msg_store_misc:form_filename( - Dir, - rabbit_msg_store_misc:filenum_to_name(File))), - State1 #msstate { sum_file_size = SumFileSize - FileSize }; - _ -> State - end. diff --git a/src/rabbit_msg_store_ets_index.erl b/src/rabbit_msg_store_ets_index.erl deleted file mode 100644 index e8d596f9..00000000 --- a/src/rabbit_msg_store_ets_index.erl +++ /dev/null @@ -1,71 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_msg_store_ets_index). --export([init/1, lookup/2, insert/2, update/2, update_fields/3, delete/2, - delete_by_file/2, terminate/1]). - --define(MSG_LOC_NAME, rabbit_msg_store_ets_index). - --include("rabbit_msg_store.hrl"). - -init(_Dir) -> - ets:new(?MSG_LOC_NAME, [set, public, {keypos, #msg_location.msg_id}]). - -lookup(Key, MsgLocations) -> - case ets:lookup(MsgLocations, Key) of - [] -> not_found; - [Entry] -> Entry - end. - -insert(Obj, MsgLocations) -> - true = ets:insert_new(MsgLocations, Obj), - ok. - -update(Obj, MsgLocations) -> - true = ets:insert(MsgLocations, Obj), - ok. - -update_fields(Key, Updates, MsgLocations) -> - true = ets:update_element(MsgLocations, Key, Updates), - ok. - -delete(Key, MsgLocations) -> - true = ets:delete(MsgLocations, Key), - ok. - -delete_by_file(File, MsgLocations) -> - MatchHead = #msg_location { file = File, _ = '_' }, - ets:select_delete(MsgLocations, [{MatchHead, [], [true]}]), - ok. - -terminate(MsgLocations) -> - ets:delete(MsgLocations). diff --git a/src/rabbit_msg_store_gc.erl b/src/rabbit_msg_store_gc.erl deleted file mode 100644 index 7b751ce8..00000000 --- a/src/rabbit_msg_store_gc.erl +++ /dev/null @@ -1,256 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_msg_store_gc). - --behaviour(gen_server2). - --export([start_link/3, gc/2, stop/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(gcstate, - {dir, - index_state, - index_module - }). - --include("rabbit_msg_store.hrl"). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link(Dir, IndexState, IndexModule) -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, - [Dir, IndexState, IndexModule], - [{timeout, infinity}]). - -gc(Source, Destination) -> - gen_server2:cast(?SERVER, {gc, Source, Destination}). - -stop() -> - gen_server2:call(?SERVER, stop). - -%%---------------------------------------------------------------------------- - -init([Dir, IndexState, IndexModule]) -> - {ok, #gcstate { dir = Dir, index_state = IndexState, - index_module = IndexModule }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}. - -handle_cast({gc, Source, Destination}, State) -> - Reclaimed = adjust_meta_and_combine(Source, Destination, State), - ok = rabbit_msg_store:gc_done(Reclaimed, Source, Destination), - {noreply, State, hibernate}. - -handle_info(Info, State) -> - {stop, {unhandled_info, Info}, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -adjust_meta_and_combine(SourceFile, DestFile, State) -> - - [SourceObj = #file_summary { - readers = SourceReaders, - valid_total_size = SourceValidData, left = DestFile, - file_size = SourceFileSize, locked = true }] = - ets:lookup(?FILE_SUMMARY_ETS_NAME, SourceFile), - [DestObj = #file_summary { - readers = DestReaders, - valid_total_size = DestValidData, right = SourceFile, - file_size = DestFileSize, locked = true }] = - ets:lookup(?FILE_SUMMARY_ETS_NAME, DestFile), - - case SourceReaders =:= 0 andalso DestReaders =:= 0 of - true -> - TotalValidData = DestValidData + SourceValidData, - ok = combine_files(SourceObj, DestObj, State), - %% don't update dest.right, because it could be changing - %% at the same time - true = ets:update_element( - ?FILE_SUMMARY_ETS_NAME, DestFile, - [{#file_summary.valid_total_size, TotalValidData}, - {#file_summary.contiguous_top, TotalValidData}, - {#file_summary.file_size, TotalValidData}]), - SourceFileSize + DestFileSize - TotalValidData; - false -> - timer:sleep(100), - adjust_meta_and_combine(SourceFile, DestFile, State) - end. - -combine_files(#file_summary { file = Source, - valid_total_size = SourceValid, - left = Destination }, - #file_summary { file = Destination, - valid_total_size = DestinationValid, - contiguous_top = DestinationContiguousTop, - right = Source }, - State = #gcstate { dir = Dir }) -> - SourceName = rabbit_msg_store_misc:filenum_to_name(Source), - DestinationName = rabbit_msg_store_misc:filenum_to_name(Destination), - {ok, SourceHdl} = - rabbit_msg_store_misc:open_file(Dir, SourceName, ?READ_AHEAD_MODE), - {ok, DestinationHdl} = - rabbit_msg_store_misc:open_file(Dir, DestinationName, - ?READ_AHEAD_MODE ++ ?WRITE_MODE), - ExpectedSize = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - if DestinationContiguousTop =:= DestinationValid -> - ok = rabbit_msg_store_misc:truncate_and_extend_file( - DestinationHdl, DestinationValid, ExpectedSize); - true -> - Worklist = - lists:dropwhile( - fun (#msg_location { offset = Offset }) - when Offset /= DestinationContiguousTop -> - %% it cannot be that Offset == - %% DestinationContiguousTop because if it - %% was then DestinationContiguousTop would - %% have been extended by TotalSize - Offset < DestinationContiguousTop - %% Given expected access patterns, I suspect - %% that the list should be naturally sorted - %% as we require, however, we need to - %% enforce it anyway - end, - find_unremoved_messages_in_file(Destination, State)), - Tmp = filename:rootname(DestinationName) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = rabbit_msg_store_misc:open_file( - Dir, Tmp, ?READ_AHEAD_MODE ++ ?WRITE_MODE), - ok = copy_messages( - Worklist, DestinationContiguousTop, DestinationValid, - DestinationHdl, TmpHdl, Destination, State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage from - %% Destination, and index_state has been updated to - %% reflect the compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file_handle_cache:position(TmpHdl, 0), - ok = rabbit_msg_store_misc:truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, ExpectedSize), - {ok, TmpSize} = - file_handle_cache:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file_handle_cache:sync(DestinationHdl), - ok = file_handle_cache:close(TmpHdl), - ok = file:delete(rabbit_msg_store_misc:form_filename(Dir, Tmp)) - end, - SourceWorkList = find_unremoved_messages_in_file(Source, State), - ok = copy_messages(SourceWorkList, DestinationValid, ExpectedSize, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file_handle_cache:close(SourceHdl), - ok = file_handle_cache:close(DestinationHdl), - ok = file:delete(rabbit_msg_store_misc:form_filename(Dir, SourceName)), - ok. - -find_unremoved_messages_in_file(File, #gcstate { dir = Dir, - index_state = IndexState, - index_module = Index }) -> - %% Msgs here will be end-of-file at start-of-list - {ok, Messages, _FileSize} = - rabbit_msg_store_misc:scan_file_for_valid_messages( - Dir, rabbit_msg_store_misc:filenum_to_name(File)), - %% foldl will reverse so will end up with msgs in ascending offset order - lists:foldl( - fun ({MsgId, _TotalSize, _Offset}, Acc) -> - case Index:lookup(MsgId, IndexState) of - Entry = #msg_location { file = File } -> [ Entry | Acc ]; - _ -> Acc - end - end, [], Messages). - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, #gcstate { index_module = Index, - index_state = IndexState }) -> - {FinalOffset, BlockStart1, BlockEnd1} = - lists:foldl( - fun (#msg_location { msg_id = MsgId, offset = Offset, - total_size = TotalSize }, - {CurOffset, BlockStart, BlockEnd}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - %% update MsgLocation to reflect change of file and offset - ok = Index:update_fields(MsgId, - [{#msg_location.file, Destination}, - {#msg_location.offset, CurOffset}], - IndexState), - {BlockStart2, BlockEnd2} = - if BlockStart =:= undefined -> - %% base case, called only for the first list elem - {Offset, Offset + TotalSize}; - Offset =:= BlockEnd -> - %% extend the current block because the - %% next msg follows straight on - {BlockStart, BlockEnd + TotalSize}; - true -> - %% found a gap, so actually do the work - %% for the previous block - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file_handle_cache:position(SourceHdl, - BlockStart), - {ok, BSize} = file_handle_cache:copy( - SourceHdl, DestinationHdl, BSize), - {Offset, Offset + TotalSize} - end, - {CurOffset + TotalSize, BlockStart2, BlockEnd2} - end, {InitOffset, undefined, undefined}, WorkList), - case WorkList of - [] -> - ok; - _ -> - %% do the last remaining block - BSize1 = BlockEnd1 - BlockStart1, - {ok, BlockStart1} = - file_handle_cache:position(SourceHdl, BlockStart1), - {ok, BSize1} = - file_handle_cache:copy(SourceHdl, DestinationHdl, BSize1), - ok = file_handle_cache:sync(DestinationHdl) - end, - ok. diff --git a/src/rabbit_msg_store_misc.erl b/src/rabbit_msg_store_misc.erl deleted file mode 100644 index cf76cf21..00000000 --- a/src/rabbit_msg_store_misc.erl +++ /dev/null @@ -1,74 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_msg_store_misc). - --export([open_file/3, preallocate/3, truncate_and_extend_file/3, - form_filename/2, filenum_to_name/1, scan_file_for_valid_messages/2]). - --include("rabbit_msg_store.hrl"). - - -%%---------------------------------------------------------------------------- - -open_file(Dir, FileName, Mode) -> - file_handle_cache:open(form_filename(Dir, FileName), ?BINARY_MODE ++ Mode, - [{write_buffer, ?HANDLE_CACHE_BUFFER_SIZE}]). - -%%---------------------------------------------------------------------------- - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file_handle_cache:position(Hdl, FileSizeLimit), - ok = file_handle_cache:truncate(Hdl), - {ok, FinalPos} = file_handle_cache:position(Hdl, FinalPos), - ok. - -truncate_and_extend_file(FileHdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file_handle_cache:position(FileHdl, Lowpoint), - ok = file_handle_cache:truncate(FileHdl), - ok = preallocate(FileHdl, Highpoint, Lowpoint). - -form_filename(Dir, Name) -> filename:join(Dir, Name). - -filenum_to_name(File) -> integer_to_list(File) ++ ?FILE_EXTENSION. - -scan_file_for_valid_messages(Dir, FileName) -> - case open_file(Dir, FileName, ?READ_MODE) of - {ok, Hdl} -> - Valid = rabbit_msg_file:scan(Hdl), - %% if something really bad's happened, the close could fail, - %% but ignore - file_handle_cache:close(Hdl), - Valid; - {error, enoent} -> {ok, [], 0}; - {error, Reason} -> throw({error, - {unable_to_scan_file, FileName, Reason}}) - end. diff --git a/src/rabbit_multi.erl b/src/rabbit_multi.erl deleted file mode 100644 index 4e77d7f9..00000000 --- a/src/rabbit_multi.erl +++ /dev/null @@ -1,347 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_multi). --include("rabbit.hrl"). - --export([start/0, stop/0]). - --define(RPC_SLEEP, 500). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - RpcTimeout = - case init:get_argument(maxwait) of - {ok, [[N1]]} -> 1000 * list_to_integer(N1); - _ -> 16#ffffffff %% max allowed value according to docs - end, - case init:get_plain_arguments() of - [] -> - usage(); - FullCommand -> - {Command, Args} = parse_args(FullCommand), - case catch action(Command, Args, RpcTimeout) of - ok -> - io:format("done.~n"), - halt(); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - error("invalid command '~s'", - [lists:flatten( - rabbit_misc:intersperse(" ", FullCommand))]), - usage(); - timeout -> - error("timeout starting some nodes.", []), - halt(1); - Other -> - error("~p", [Other]), - halt(2) - end - end. - -error(Format, Args) -> - rabbit_misc:format_stderr("Error: " ++ Format ++ "~n", Args). - -parse_args([Command | Args]) -> - {list_to_atom(Command), Args}. - -stop() -> - ok. - -usage() -> - io:format("Usage: rabbitmq-multi - -Available commands: - - start_all - start a local cluster of RabbitMQ nodes. - status - print status of all running nodes - stop_all - stops all local RabbitMQ nodes. - rotate_logs [Suffix] - rotate logs for all local and running RabbitMQ nodes. -"), - halt(3). - -action(start_all, [NodeCount], RpcTimeout) -> - io:format("Starting all nodes...~n", []), - application:load(rabbit), - NodeName = rabbit_misc:nodeparts(getenv("RABBITMQ_NODENAME")), - {NodePids, Running} = - case list_to_integer(NodeCount) of - 1 -> {NodePid, Started} = start_node(rabbit_misc:makenode(NodeName), - RpcTimeout), - {[NodePid], Started}; - N -> start_nodes(N, N, [], true, NodeName, - get_node_tcp_listener(), RpcTimeout) - end, - write_pids_file(NodePids), - case Running of - true -> ok; - false -> timeout - end; - -action(status, [], RpcTimeout) -> - io:format("Status of all running nodes...~n", []), - call_all_nodes( - fun({Node, Pid}) -> - RabbitRunning = - case is_rabbit_running(Node, RpcTimeout) of - false -> not_running; - true -> running - end, - io:format("Node '~p' with Pid ~p: ~p~n", - [Node, Pid, RabbitRunning]) - end); - -action(stop_all, [], RpcTimeout) -> - io:format("Stopping all nodes...~n", []), - call_all_nodes(fun({Node, Pid}) -> - io:format("Stopping node ~p~n", [Node]), - rpc:call(Node, rabbit, stop_and_halt, []), - case kill_wait(Pid, RpcTimeout, false) of - false -> kill_wait(Pid, RpcTimeout, true); - true -> ok - end, - io:format("OK~n", []) - end), - delete_pids_file(); - -action(rotate_logs, [], RpcTimeout) -> - action(rotate_logs, [""], RpcTimeout); - -action(rotate_logs, [Suffix], RpcTimeout) -> - io:format("Rotating logs for all nodes...~n", []), - BinarySuffix = list_to_binary(Suffix), - call_all_nodes( - fun ({Node, _}) -> - io:format("Rotating logs for node ~p", [Node]), - case rpc:call(Node, rabbit, rotate_logs, - [BinarySuffix], RpcTimeout) of - {badrpc, Error} -> io:format(": ~p.~n", [Error]); - ok -> io:format(": ok.~n", []) - end - end). - -%% PNodePid is the list of PIDs -%% Running is a boolean exhibiting success at some moment -start_nodes(0, _, PNodePid, Running, _, _, _) -> {PNodePid, Running}; - -start_nodes(N, Total, PNodePid, Running, NodeNameBase, Listener, RpcTimeout) -> - {NodePre, NodeSuff} = NodeNameBase, - NodeNumber = Total - N, - NodePre1 = case NodeNumber of - %% For compatibility with running a single node - 0 -> NodePre; - _ -> NodePre ++ "_" ++ integer_to_list(NodeNumber) - end, - Node = rabbit_misc:makenode({NodePre1, NodeSuff}), - os:putenv("RABBITMQ_NODENAME", atom_to_list(Node)), - case Listener of - {NodeIpAddress, NodePortBase} -> - NodePort = NodePortBase + NodeNumber, - os:putenv("RABBITMQ_NODE_PORT", integer_to_list(NodePort)), - os:putenv("RABBITMQ_NODE_IP_ADDRESS", NodeIpAddress); - undefined -> - ok - end, - {NodePid, Started} = start_node(Node, RpcTimeout), - start_nodes(N - 1, Total, [NodePid | PNodePid], - Started and Running, NodeNameBase, Listener, RpcTimeout). - -start_node(Node, RpcTimeout) -> - io:format("Starting node ~s...~n", [Node]), - case rpc:call(Node, os, getpid, []) of - {badrpc, _} -> - Port = run_cmd(script_filename()), - Started = wait_for_rabbit_to_start(Node, RpcTimeout, Port), - Pid = case rpc:call(Node, os, getpid, []) of - {badrpc, _} -> throw(cannot_get_pid); - PidS -> list_to_integer(PidS) - end, - io:format("~s~n", [case Started of - true -> "OK"; - false -> "timeout" - end]), - {{Node, Pid}, Started}; - PidS -> - Pid = list_to_integer(PidS), - throw({node_already_running, Node, Pid}) - end. - -wait_for_rabbit_to_start(_ , RpcTimeout, _) when RpcTimeout < 0 -> - false; -wait_for_rabbit_to_start(Node, RpcTimeout, Port) -> - case is_rabbit_running(Node, RpcTimeout) of - true -> true; - false -> receive - {'EXIT', Port, PosixCode} -> - throw({node_start_failed, PosixCode}) - after ?RPC_SLEEP -> - wait_for_rabbit_to_start( - Node, RpcTimeout - ?RPC_SLEEP, Port) - end - end. - -run_cmd(FullPath) -> - erlang:open_port({spawn, FullPath}, [nouse_stdio]). - -is_rabbit_running(Node, RpcTimeout) -> - case rpc:call(Node, rabbit, status, [], RpcTimeout) of - {badrpc, _} -> false; - Status -> case proplists:get_value(running_applications, Status) of - undefined -> false; - Apps -> lists:keymember(rabbit, 1, Apps) - end - end. - -with_os(Handlers) -> - {OsFamily, _} = os:type(), - case proplists:get_value(OsFamily, Handlers) of - undefined -> throw({unsupported_os, OsFamily}); - Handler -> Handler() - end. - -script_filename() -> - ScriptHome = getenv("RABBITMQ_SCRIPT_HOME"), - ScriptName = with_os( - [{unix , fun () -> "rabbitmq-server" end}, - {win32, fun () -> "rabbitmq-server.bat" end}]), - ScriptHome ++ "/" ++ ScriptName ++ " -noinput". - -pids_file() -> getenv("RABBITMQ_PIDS_FILE"). - -write_pids_file(Pids) -> - FileName = pids_file(), - Handle = case file:open(FileName, [write]) of - {ok, Device} -> - Device; - {error, Reason} -> - throw({cannot_create_pids_file, FileName, Reason}) - end, - try - ok = io:write(Handle, Pids), - ok = io:put_chars(Handle, [$.]) - after - case file:close(Handle) of - ok -> ok; - {error, Reason1} -> - throw({cannot_create_pids_file, FileName, Reason1}) - end - end, - ok. - -delete_pids_file() -> - FileName = pids_file(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> throw({cannot_delete_pids_file, FileName, Reason}) - end. - -read_pids_file() -> - FileName = pids_file(), - case file:consult(FileName) of - {ok, [Pids]} -> Pids; - {error, enoent} -> []; - {error, Reason} -> throw({cannot_read_pids_file, FileName, Reason}) - end. - -kill_wait(Pid, TimeLeft, Forceful) when TimeLeft < 0 -> - Cmd = with_os([{unix, fun () -> if Forceful -> "kill -9"; - true -> "kill" - end - end}, - %% Kill forcefully always on Windows, since erl.exe - %% seems to completely ignore non-forceful killing - %% even when everything is working - {win32, fun () -> "taskkill /f /pid" end}]), - os:cmd(Cmd ++ " " ++ integer_to_list(Pid)), - false; % Don't assume what we did just worked! - -% Returns true if the process is dead, false otherwise. -kill_wait(Pid, TimeLeft, Forceful) -> - timer:sleep(?RPC_SLEEP), - io:format(".", []), - is_dead(Pid) orelse kill_wait(Pid, TimeLeft - ?RPC_SLEEP, Forceful). - -% Test using some OS clunkiness since we shouldn't trust -% rpc:call(os, getpid, []) at this point -is_dead(Pid) -> - PidS = integer_to_list(Pid), - with_os([{unix, fun () -> - Res = os:cmd("ps --no-headers --pid " ++ PidS), - Res == "" - end}, - {win32, fun () -> - Res = os:cmd("tasklist /nh /fi \"pid eq " ++ - PidS ++ "\""), - case regexp:first_match(Res, "erl.exe") of - {match, _, _} -> false; - _ -> true - end - end}]). - -call_all_nodes(Func) -> - case read_pids_file() of - [] -> throw(no_nodes_running); - NodePids -> lists:foreach(Func, NodePids) - end. - -getenv(Var) -> - case os:getenv(Var) of - false -> throw({missing_env_var, Var}); - Value -> Value - end. - -get_node_tcp_listener() -> - try - {getenv("RABBITMQ_NODE_IP_ADDRESS"), - list_to_integer(getenv("RABBITMQ_NODE_PORT"))} - catch _ -> - case application:get_env(rabbit, tcp_listeners) of - {ok, [{_IpAddy, _Port} = Listener]} -> - Listener; - {ok, []} -> - undefined; - {ok, Other} -> - throw({cannot_start_multiple_nodes, multiple_tcp_listeners, - Other}); - undefined -> - throw({missing_configuration, tcp_listeners}) - end - end. diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl deleted file mode 100644 index a5ccc8e9..00000000 --- a/src/rabbit_net.erl +++ /dev/null @@ -1,132 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_net). --include("rabbit.hrl"). --include_lib("kernel/include/inet.hrl"). - --export([async_recv/3, close/1, controlling_process/2, - getstat/2, peername/1, port_command/2, - send/2, sockname/1]). -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --type(stat_option() :: - 'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' | - 'send_cnt' | 'send_max' | 'send_avg' | 'send_oct' | 'send_pend'). --type(error() :: {'error', any()}). - --spec(async_recv/3 :: (socket(), integer(), timeout()) -> {'ok', any()}). --spec(close/1 :: (socket()) -> 'ok' | error()). --spec(controlling_process/2 :: (socket(), pid()) -> 'ok' | error()). --spec(port_command/2 :: (socket(), iolist()) -> 'true'). --spec(send/2 :: (socket(), binary() | iolist()) -> 'ok' | error()). --spec(peername/1 :: (socket()) -> - {'ok', {ip_address(), non_neg_integer()}} | error()). --spec(sockname/1 :: (socket()) -> - {'ok', {ip_address(), non_neg_integer()}} | error()). --spec(getstat/2 :: (socket(), [stat_option()]) -> - {'ok', [{stat_option(), integer()}]} | error()). - --endif. - -%%--------------------------------------------------------------------------- - - -async_recv(Sock, Length, Timeout) when is_record(Sock, ssl_socket) -> - Pid = self(), - Ref = make_ref(), - - spawn(fun() -> Pid ! {inet_async, Sock, Ref, - ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)} - end), - - {ok, Ref}; - -async_recv(Sock, Length, infinity) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, -1); - -async_recv(Sock, Length, Timeout) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, Timeout). - -close(Sock) when is_record(Sock, ssl_socket) -> - ssl:close(Sock#ssl_socket.ssl); - -close(Sock) when is_port(Sock) -> - gen_tcp:close(Sock). - - -controlling_process(Sock, Pid) when is_record(Sock, ssl_socket) -> - ssl:controlling_process(Sock#ssl_socket.ssl, Pid); - -controlling_process(Sock, Pid) when is_port(Sock) -> - gen_tcp:controlling_process(Sock, Pid). - - -getstat(Sock, Stats) when is_record(Sock, ssl_socket) -> - inet:getstat(Sock#ssl_socket.tcp, Stats); - -getstat(Sock, Stats) when is_port(Sock) -> - inet:getstat(Sock, Stats). - - -peername(Sock) when is_record(Sock, ssl_socket) -> - ssl:peername(Sock#ssl_socket.ssl); - -peername(Sock) when is_port(Sock) -> - inet:peername(Sock). - - -port_command(Sock, Data) when is_record(Sock, ssl_socket) -> - case ssl:send(Sock#ssl_socket.ssl, Data) of - ok -> - self() ! {inet_reply, Sock, ok}, - true; - {error, Reason} -> - erlang:error(Reason) - end; - -port_command(Sock, Data) when is_port(Sock) -> - erlang:port_command(Sock, Data). - -send(Sock, Data) when is_record(Sock, ssl_socket) -> - ssl:send(Sock#ssl_socket.ssl, Data); - -send(Sock, Data) when is_port(Sock) -> - gen_tcp:send(Sock, Data). - - -sockname(Sock) when is_record(Sock, ssl_socket) -> - ssl:sockname(Sock#ssl_socket.ssl); - -sockname(Sock) when is_port(Sock) -> - inet:sockname(Sock). diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl deleted file mode 100644 index 3cfcd537..00000000 --- a/src/rabbit_networking.erl +++ /dev/null @@ -1,235 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_networking). - --export([boot/0, start/0, start_tcp_listener/2, start_ssl_listener/3, - stop_tcp_listener/2, on_node_down/1, active_listeners/0, - node_listeners/1, connections/0, connection_info/1, - connection_info/2, connection_info_all/0, - connection_info_all/1]). -%%used by TCP-based transports, e.g. STOMP adapter --export([check_tcp_listener_address/3]). - --export([tcp_listener_started/2, tcp_listener_stopped/2, - start_client/1, start_ssl_client/2]). - --include("rabbit.hrl"). --include_lib("kernel/include/inet.hrl"). - --define(RABBIT_TCP_OPTS, [ - binary, - {packet, raw}, % no packaging - {reuseaddr, true}, % allow rebind without waiting - %% {nodelay, true}, % TCP_NODELAY - disable Nagle's alg. - %% {delay_send, true}, - {exit_on_close, false} - ]). - --define(SSL_TIMEOUT, 5). %% seconds - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(host() :: ip_address() | string() | atom()). --type(connection() :: pid()). - --spec(start/0 :: () -> 'ok'). --spec(start_tcp_listener/2 :: (host(), ip_port()) -> 'ok'). --spec(start_ssl_listener/3 :: (host(), ip_port(), [info()]) -> 'ok'). --spec(stop_tcp_listener/2 :: (host(), ip_port()) -> 'ok'). --spec(active_listeners/0 :: () -> [listener()]). --spec(node_listeners/1 :: (erlang_node()) -> [listener()]). --spec(connections/0 :: () -> [connection()]). --spec(connection_info/1 :: (connection()) -> [info()]). --spec(connection_info/2 :: (connection(), [info_key()]) -> [info()]). --spec(connection_info_all/0 :: () -> [[info()]]). --spec(connection_info_all/1 :: ([info_key()]) -> [[info()]]). --spec(on_node_down/1 :: (erlang_node()) -> 'ok'). --spec(check_tcp_listener_address/3 :: (atom(), host(), ip_port()) -> - {ip_address(), atom()}). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - ok = start(), - ok = boot_tcp(), - ok = boot_ssl(). - -boot_tcp() -> - {ok, TcpListeners} = application:get_env(tcp_listeners), - [ok = start_tcp_listener(Host, Port) || {Host, Port} <- TcpListeners], - ok. - -boot_ssl() -> - case application:get_env(ssl_listeners) of - {ok, []} -> - ok; - {ok, SslListeners} -> - ok = rabbit_misc:start_applications([crypto, ssl]), - {ok, SslOpts} = application:get_env(ssl_options), - [start_ssl_listener(Host, Port, SslOpts) || {Host, Port} <- SslListeners], - ok - end. - -start() -> - {ok,_} = supervisor:start_child( - rabbit_sup, - {rabbit_tcp_client_sup, - {tcp_client_sup, start_link, - [{local, rabbit_tcp_client_sup}, - {rabbit_reader,start_link,[]}]}, - transient, infinity, supervisor, [tcp_client_sup]}), - ok. - -check_tcp_listener_address(NamePrefix, Host, Port) -> - IPAddress = - case inet:getaddr(Host, inet) of - {ok, IPAddress1} -> IPAddress1; - {error, Reason} -> - error_logger:error_msg("invalid host ~p - ~p~n", - [Host, Reason]), - throw({error, {invalid_host, Host, Reason}}) - end, - if is_integer(Port) andalso (Port >= 0) andalso (Port =< 65535) -> ok; - true -> error_logger:error_msg("invalid port ~p - not 0..65535~n", - [Port]), - throw({error, {invalid_port, Port}}) - end, - Name = rabbit_misc:tcp_name(NamePrefix, IPAddress, Port), - {IPAddress, Name}. - -start_tcp_listener(Host, Port) -> - start_listener(Host, Port, "TCP Listener", - {?MODULE, start_client, []}). - -start_ssl_listener(Host, Port, SslOpts) -> - start_listener(Host, Port, "SSL Listener", - {?MODULE, start_ssl_client, [SslOpts]}). - -start_listener(Host, Port, Label, OnConnect) -> - {IPAddress, Name} = - check_tcp_listener_address(rabbit_tcp_listener_sup, Host, Port), - {ok,_} = supervisor:start_child( - rabbit_sup, - {Name, - {tcp_listener_sup, start_link, - [IPAddress, Port, ?RABBIT_TCP_OPTS , - {?MODULE, tcp_listener_started, []}, - {?MODULE, tcp_listener_stopped, []}, - OnConnect, Label]}, - transient, infinity, supervisor, [tcp_listener_sup]}), - ok. - -stop_tcp_listener(Host, Port) -> - {ok, IPAddress} = inet:getaddr(Host, inet), - Name = rabbit_misc:tcp_name(rabbit_tcp_listener_sup, IPAddress, Port), - ok = supervisor:terminate_child(rabbit_sup, Name), - ok = supervisor:delete_child(rabbit_sup, Name), - ok. - -tcp_listener_started(IPAddress, Port) -> - ok = mnesia:dirty_write( - #listener{node = node(), - protocol = tcp, - host = tcp_host(IPAddress), - port = Port}). - -tcp_listener_stopped(IPAddress, Port) -> - ok = mnesia:dirty_delete_object( - #listener{node = node(), - protocol = tcp, - host = tcp_host(IPAddress), - port = Port}). - -active_listeners() -> - rabbit_misc:dirty_read_all(listener). - -node_listeners(Node) -> - mnesia:dirty_read(listener, Node). - -on_node_down(Node) -> - ok = mnesia:dirty_delete(listener, Node). - -start_client(Sock, SockTransform) -> - {ok, Child} = supervisor:start_child(rabbit_tcp_client_sup, []), - ok = rabbit_net:controlling_process(Sock, Child), - Child ! {go, Sock, SockTransform}, - Child. - -start_client(Sock) -> - start_client(Sock, fun (S) -> {ok, S} end). - -start_ssl_client(SslOpts, Sock) -> - start_client( - Sock, - fun (Sock1) -> - case catch ssl:ssl_accept(Sock1, SslOpts, ?SSL_TIMEOUT * 1000) of - {ok, SslSock} -> - rabbit_log:info("upgraded TCP connection ~p to SSL~n", - [self()]), - {ok, #ssl_socket{tcp = Sock1, ssl = SslSock}}; - {error, Reason} -> - {error, {ssl_upgrade_error, Reason}}; - {'EXIT', Reason} -> - {error, {ssl_upgrade_failure, Reason}} - - end - end). - -connections() -> - [Pid || {_, Pid, _, _} <- supervisor:which_children( - rabbit_tcp_client_sup)]. - -connection_info(Pid) -> rabbit_reader:info(Pid). -connection_info(Pid, Items) -> rabbit_reader:info(Pid, Items). - -connection_info_all() -> cmap(fun (Q) -> connection_info(Q) end). -connection_info_all(Items) -> cmap(fun (Q) -> connection_info(Q, Items) end). - -%%-------------------------------------------------------------------- - -tcp_host({0,0,0,0}) -> - {ok, Hostname} = inet:gethostname(), - case inet:gethostbyname(Hostname) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> Hostname - end; -tcp_host(IPAddress) -> - case inet:gethostbyaddr(IPAddress) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> inet_parse:ntoa(IPAddress) - end. - -cmap(F) -> rabbit_misc:filter_exit_map(F, connections()). diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl deleted file mode 100644 index 14a69a47..00000000 --- a/src/rabbit_node_monitor.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_node_monitor). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). - -%%-------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%-------------------------------------------------------------------- - -init([]) -> - ok = net_kernel:monitor_nodes(true), - {ok, no_state}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({nodeup, Node}, State) -> - rabbit_log:info("node ~p up", [Node]), - {noreply, State}; -handle_info({nodedown, Node}, State) -> - rabbit_log:info("node ~p down", [Node]), - %% TODO: This may turn out to be a performance hog when there are - %% lots of nodes. We really only need to execute this code on - %% *one* node, rather than all of them. - ok = rabbit_networking:on_node_down(Node), - ok = rabbit_amqqueue:on_node_down(Node), - {noreply, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl deleted file mode 100644 index d0d60ddf..00000000 --- a/src/rabbit_persister.erl +++ /dev/null @@ -1,523 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_persister). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([transaction/1, extend_transaction/2, dirty_work/1, - commit_transaction/1, rollback_transaction/1, - force_snapshot/0, serial/0]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - --define(LOG_BUNDLE_DELAY, 5). --define(COMPLETE_BUNDLE_DELAY, 2). - --define(HIBERNATE_AFTER, 10000). - --define(MAX_WRAP_ENTRIES, 500). - --define(PERSISTER_LOG_FORMAT_VERSION, {2, 4}). - --record(pstate, {log_handle, entry_count, deadline, - pending_logs, pending_replies, - snapshot}). - -%% two tables for efficient persistency -%% one maps a key to a message -%% the other maps a key to one or more queues. -%% The aim is to reduce the overload of storing a message multiple times -%% when it appears in several queues. --record(psnapshot, {serial, transactions, messages, queues}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(qmsg() :: {amqqueue(), pkey()}). --type(work_item() :: - {publish, message(), qmsg()} | - {deliver, qmsg()} | - {ack, qmsg()}). - --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(transaction/1 :: ([work_item()]) -> 'ok'). --spec(extend_transaction/2 :: (txn(), [work_item()]) -> 'ok'). --spec(dirty_work/1 :: ([work_item()]) -> 'ok'). --spec(commit_transaction/1 :: (txn()) -> 'ok'). --spec(rollback_transaction/1 :: (txn()) -> 'ok'). --spec(force_snapshot/0 :: () -> 'ok'). --spec(serial/0 :: () -> non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -transaction(MessageList) -> - ?LOGDEBUG("transaction ~p~n", [MessageList]), - TxnKey = rabbit_guid:guid(), - gen_server:call(?SERVER, {transaction, TxnKey, MessageList}, infinity). - -extend_transaction(TxnKey, MessageList) -> - ?LOGDEBUG("extend_transaction ~p ~p~n", [TxnKey, MessageList]), - gen_server:cast(?SERVER, {extend_transaction, TxnKey, MessageList}). - -dirty_work(MessageList) -> - ?LOGDEBUG("dirty_work ~p~n", [MessageList]), - gen_server:cast(?SERVER, {dirty_work, MessageList}). - -commit_transaction(TxnKey) -> - ?LOGDEBUG("commit_transaction ~p~n", [TxnKey]), - gen_server:call(?SERVER, {commit_transaction, TxnKey}, infinity). - -rollback_transaction(TxnKey) -> - ?LOGDEBUG("rollback_transaction ~p~n", [TxnKey]), - gen_server:cast(?SERVER, {rollback_transaction, TxnKey}). - -force_snapshot() -> - gen_server:call(?SERVER, force_snapshot, infinity). - -serial() -> - gen_server:call(?SERVER, serial, infinity). - -%%-------------------------------------------------------------------- - -init(_Args) -> - process_flag(trap_exit, true), - FileName = base_filename(), - ok = filelib:ensure_dir(FileName), - Snapshot = #psnapshot{serial = 0, - transactions = dict:new(), - messages = ets:new(messages, []), - queues = ets:new(queues, [])}, - LogHandle = - case disk_log:open([{name, rabbit_persister}, - {head, current_snapshot(Snapshot)}, - {file, FileName}]) of - {ok, LH} -> LH; - {repaired, LH, {recovered, Recovered}, {badbytes, Bad}} -> - WarningFun = if - Bad > 0 -> fun rabbit_log:warning/2; - true -> fun rabbit_log:info/2 - end, - WarningFun("Repaired persister log - ~p recovered, ~p bad~n", - [Recovered, Bad]), - LH - end, - {Res, LoadedSnapshot} = internal_load_snapshot(LogHandle, Snapshot), - NewSnapshot = LoadedSnapshot#psnapshot{ - serial = LoadedSnapshot#psnapshot.serial + 1}, - case Res of - ok -> - ok = take_snapshot(LogHandle, NewSnapshot); - {error, Reason} -> - rabbit_log:error("Failed to load persister log: ~p~n", [Reason]), - ok = take_snapshot_and_save_old(LogHandle, NewSnapshot) - end, - State = #pstate{log_handle = LogHandle, - entry_count = 0, - deadline = infinity, - pending_logs = [], - pending_replies = [], - snapshot = NewSnapshot}, - {ok, State}. - -handle_call({transaction, Key, MessageList}, From, State) -> - NewState = internal_extend(Key, MessageList, State), - do_noreply(internal_commit(From, Key, NewState)); -handle_call({commit_transaction, TxnKey}, From, State) -> - do_noreply(internal_commit(From, TxnKey, State)); -handle_call(force_snapshot, _From, State) -> - do_reply(ok, flush(true, State)); -handle_call(serial, _From, - State = #pstate{snapshot = #psnapshot{serial = Serial}}) -> - do_reply(Serial, State); -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({rollback_transaction, TxnKey}, State) -> - do_noreply(internal_rollback(TxnKey, State)); -handle_cast({dirty_work, MessageList}, State) -> - do_noreply(internal_dirty_work(MessageList, State)); -handle_cast({extend_transaction, TxnKey, MessageList}, State) -> - do_noreply(internal_extend(TxnKey, MessageList, State)); -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(timeout, State = #pstate{deadline = infinity}) -> - State1 = flush(true, State), - %% TODO: Once we drop support for R11B-5, we can change this to - %% {noreply, State1, hibernate}; - proc_lib:hibernate(gen_server2, enter_loop, [?MODULE, [], State1]); -handle_info(timeout, State) -> - do_noreply(flush(State)); -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, State = #pstate{log_handle = LogHandle}) -> - flush(State), - disk_log:close(LogHandle), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, flush(State)}. - -%%-------------------------------------------------------------------- - -internal_extend(Key, MessageList, State) -> - log_work(fun (ML) -> {extend_transaction, Key, ML} end, - MessageList, State). - -internal_dirty_work(MessageList, State) -> - log_work(fun (ML) -> {dirty_work, ML} end, - MessageList, State). - -internal_commit(From, Key, State = #pstate{snapshot = Snapshot}) -> - Unit = {commit_transaction, Key}, - NewSnapshot = internal_integrate1(Unit, Snapshot), - complete(From, Unit, State#pstate{snapshot = NewSnapshot}). - -internal_rollback(Key, State = #pstate{snapshot = Snapshot}) -> - Unit = {rollback_transaction, Key}, - NewSnapshot = internal_integrate1(Unit, Snapshot), - log(State#pstate{snapshot = NewSnapshot}, Unit). - -complete(From, Item, State = #pstate{deadline = ExistingDeadline, - pending_logs = Logs, - pending_replies = Waiting}) -> - State#pstate{deadline = compute_deadline( - ?COMPLETE_BUNDLE_DELAY, ExistingDeadline), - pending_logs = [Item | Logs], - pending_replies = [From | Waiting]}. - -%% This is made to limit disk usage by writing messages only once onto -%% disk. We keep a table associating pkeys to messages, and provided -%% the list of messages to output is left to right, we can guarantee -%% that pkeys will be a backreference to a message in memory when a -%% "tied" is met. -log_work(CreateWorkUnit, MessageList, - State = #pstate{ - snapshot = Snapshot = #psnapshot{ - messages = Messages}}) -> - Unit = CreateWorkUnit( - rabbit_misc:map_in_order( - fun(M = {publish, Message, QK = {_QName, PKey}}) -> - case ets:lookup(Messages, PKey) of - [_] -> {tied, QK}; - [] -> ets:insert(Messages, {PKey, Message}), - M - end; - (M) -> M - end, - MessageList)), - NewSnapshot = internal_integrate1(Unit, Snapshot), - log(State#pstate{snapshot = NewSnapshot}, Unit). - -log(State = #pstate{deadline = ExistingDeadline, pending_logs = Logs}, - Message) -> - State#pstate{deadline = compute_deadline(?LOG_BUNDLE_DELAY, - ExistingDeadline), - pending_logs = [Message | Logs]}. - -base_filename() -> - rabbit_mnesia:dir() ++ "/rabbit_persister.LOG". - -take_snapshot(LogHandle, OldFileName, Snapshot) -> - ok = disk_log:sync(LogHandle), - %% current_snapshot is the Head (ie. first thing logged) - ok = disk_log:reopen(LogHandle, OldFileName, current_snapshot(Snapshot)). - -take_snapshot(LogHandle, Snapshot) -> - OldFileName = lists:flatten(base_filename() ++ ".previous"), - file:delete(OldFileName), - rabbit_log:info("Rolling persister log to ~p~n", [OldFileName]), - ok = take_snapshot(LogHandle, OldFileName, Snapshot). - -take_snapshot_and_save_old(LogHandle, Snapshot) -> - {MegaSecs, Secs, MicroSecs} = erlang:now(), - Timestamp = MegaSecs * 1000000 + Secs * 1000 + MicroSecs, - OldFileName = lists:flatten(io_lib:format("~s.saved.~p", - [base_filename(), Timestamp])), - rabbit_log:info("Saving persister log in ~p~n", [OldFileName]), - ok = take_snapshot(LogHandle, OldFileName, Snapshot). - -maybe_take_snapshot(Force, State = #pstate{entry_count = EntryCount, - log_handle = LH, - snapshot = Snapshot}) - when Force orelse EntryCount >= ?MAX_WRAP_ENTRIES -> - ok = take_snapshot(LH, Snapshot), - State#pstate{entry_count = 0}; -maybe_take_snapshot(_Force, State) -> - State. - -later_ms(DeltaMilliSec) -> - {MegaSec, Sec, MicroSec} = now(), - %% Note: not normalised. Unimportant for this application. - {MegaSec, Sec, MicroSec + (DeltaMilliSec * 1000)}. - -%% Result = B - A, more or less -time_diff({B1, B2, B3}, {A1, A2, A3}) -> - (B1 - A1) * 1000000 + (B2 - A2) + (B3 - A3) / 1000000.0 . - -compute_deadline(TimerDelay, infinity) -> - later_ms(TimerDelay); -compute_deadline(_TimerDelay, ExistingDeadline) -> - ExistingDeadline. - -compute_timeout(infinity) -> - ?HIBERNATE_AFTER; -compute_timeout(Deadline) -> - DeltaMilliSec = time_diff(Deadline, now()) * 1000.0, - if - DeltaMilliSec =< 1 -> - 0; - true -> - round(DeltaMilliSec) - end. - -do_noreply(State = #pstate{deadline = Deadline}) -> - {noreply, State, compute_timeout(Deadline)}. - -do_reply(Reply, State = #pstate{deadline = Deadline}) -> - {reply, Reply, State, compute_timeout(Deadline)}. - -flush(State) -> flush(false, State). - -flush(ForceSnapshot, State = #pstate{pending_logs = PendingLogs, - pending_replies = Waiting, - log_handle = LogHandle}) -> - State1 = if PendingLogs /= [] -> - disk_log:alog(LogHandle, lists:reverse(PendingLogs)), - State#pstate{entry_count = State#pstate.entry_count + 1}; - true -> - State - end, - State2 = maybe_take_snapshot(ForceSnapshot, State1), - if Waiting /= [] -> - ok = disk_log:sync(LogHandle), - lists:foreach(fun (From) -> gen_server:reply(From, ok) end, - Waiting); - true -> - ok - end, - State2#pstate{deadline = infinity, - pending_logs = [], - pending_replies = []}. - -current_snapshot(_Snapshot = #psnapshot{serial = Serial, - transactions= Ts, - messages = Messages, - queues = Queues}) -> - %% Avoid infinite growth of the table by removing messages not - %% bound to a queue anymore - prune_table(Messages, ets:foldl( - fun ({{_QName, PKey}, _Delivered}, S) -> - sets:add_element(PKey, S) - end, sets:new(), Queues)), - InnerSnapshot = {{serial, Serial}, - {txns, Ts}, - {messages, ets:tab2list(Messages)}, - {queues, ets:tab2list(Queues)}}, - ?LOGDEBUG("Inner snapshot: ~p~n", [InnerSnapshot]), - {persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, - term_to_binary(InnerSnapshot)}. - -prune_table(Tab, Keys) -> - true = ets:safe_fixtable(Tab, true), - ok = prune_table(Tab, Keys, ets:first(Tab)), - true = ets:safe_fixtable(Tab, false). - -prune_table(_Tab, _Keys, '$end_of_table') -> ok; -prune_table(Tab, Keys, Key) -> - case sets:is_element(Key, Keys) of - true -> ok; - false -> ets:delete(Tab, Key) - end, - prune_table(Tab, Keys, ets:next(Tab, Key)). - -internal_load_snapshot(LogHandle, - Snapshot = #psnapshot{messages = Messages, - queues = Queues}) -> - {K, [Loaded_Snapshot | Items]} = disk_log:chunk(LogHandle, start), - case check_version(Loaded_Snapshot) of - {ok, StateBin} -> - {{serial, Serial}, {txns, Ts}, {messages, Ms}, {queues, Qs}} = - binary_to_term(StateBin), - true = ets:insert(Messages, Ms), - true = ets:insert(Queues, Qs), - Snapshot1 = replay(Items, LogHandle, K, - Snapshot#psnapshot{ - serial = Serial, - transactions = Ts}), - Snapshot2 = requeue_messages(Snapshot1), - %% uncompleted transactions are discarded - this is TRTTD - %% since we only get into this code on node restart, so - %% any uncompleted transactions will have been aborted. - {ok, Snapshot2#psnapshot{transactions = dict:new()}}; - {error, Reason} -> {{error, Reason}, Snapshot} - end. - -check_version({persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, - StateBin}) -> - {ok, StateBin}; -check_version({persist_snapshot, {vsn, Vsn}, _StateBin}) -> - {error, {unsupported_persister_log_format, Vsn}}; -check_version(_Other) -> - {error, unrecognised_persister_log_format}. - -requeue_messages(Snapshot = #psnapshot{messages = Messages, - queues = Queues}) -> - Work = ets:foldl(fun accumulate_requeues/2, dict:new(), Queues), - %% unstable parallel map, because order doesn't matter - L = lists:append( - rabbit_misc:upmap( - %% we do as much work as possible in spawned worker - %% processes, but we need to make sure the ets:inserts are - %% performed in self() - fun ({QName, Requeues}) -> - requeue(QName, Requeues, Messages) - end, dict:to_list(Work))), - NewMessages = [{K, M} || {{_Q, K}, M, _D} <- L], - NewQueues = [{QK, D} || {QK, _M, D} <- L], - ets:delete_all_objects(Messages), - ets:delete_all_objects(Queues), - true = ets:insert(Messages, NewMessages), - true = ets:insert(Queues, NewQueues), - %% contains the mutated messages and queues tables - Snapshot. - -accumulate_requeues({{QName, PKey}, Delivered}, Acc) -> - Requeue = {PKey, Delivered}, - dict:update(QName, - fun (Requeues) -> [Requeue | Requeues] end, - [Requeue], - Acc). - -requeue(QName, Requeues, Messages) -> - case rabbit_amqqueue:lookup(QName) of - {ok, #amqqueue{pid = QPid}} -> - RequeueMessages = - [{{QName, PKey}, Message, Delivered} || - {PKey, Delivered} <- Requeues, - {_, Message} <- ets:lookup(Messages, PKey)], - rabbit_amqqueue:redeliver( - QPid, - %% Messages published by the same process receive - %% persistence keys that are monotonically - %% increasing. Since message ordering is defined on a - %% per-channel basis, and channels are bound to specific - %% processes, sorting the list does provide the correct - %% ordering properties. - [{Message, Delivered} || {_, Message, Delivered} <- - lists:sort(RequeueMessages)]), - RequeueMessages; - {error, not_found} -> - [] - end. - -replay([], LogHandle, K, Snapshot) -> - case disk_log:chunk(LogHandle, K) of - {K1, Items} -> - replay(Items, LogHandle, K1, Snapshot); - {K1, Items, Badbytes} -> - rabbit_log:warning("~p bad bytes recovering persister log~n", - [Badbytes]), - replay(Items, LogHandle, K1, Snapshot); - eof -> Snapshot - end; -replay([Item | Items], LogHandle, K, Snapshot) -> - NewSnapshot = internal_integrate_messages(Item, Snapshot), - replay(Items, LogHandle, K, NewSnapshot). - -internal_integrate_messages(Items, Snapshot) -> - lists:foldl(fun (Item, Snap) -> internal_integrate1(Item, Snap) end, - Snapshot, Items). - -internal_integrate1({extend_transaction, Key, MessageList}, - Snapshot = #psnapshot {transactions = Transactions}) -> - NewTransactions = - dict:update(Key, - fun (MessageLists) -> [MessageList | MessageLists] end, - [MessageList], - Transactions), - Snapshot#psnapshot{transactions = NewTransactions}; -internal_integrate1({rollback_transaction, Key}, - Snapshot = #psnapshot{transactions = Transactions}) -> - Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; -internal_integrate1({commit_transaction, Key}, - Snapshot = #psnapshot{transactions = Transactions, - messages = Messages, - queues = Queues}) -> - case dict:find(Key, Transactions) of - {ok, MessageLists} -> - ?LOGDEBUG("persist committing txn ~p~n", [Key]), - lists:foreach(fun (ML) -> perform_work(ML, Messages, Queues) end, - lists:reverse(MessageLists)), - Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; - error -> - Snapshot - end; -internal_integrate1({dirty_work, MessageList}, - Snapshot = #psnapshot {messages = Messages, - queues = Queues}) -> - perform_work(MessageList, Messages, Queues), - Snapshot. - -perform_work(MessageList, Messages, Queues) -> - lists:foreach( - fun (Item) -> perform_work_item(Item, Messages, Queues) end, - MessageList). - -perform_work_item({publish, Message, QK = {_QName, PKey}}, Messages, Queues) -> - ets:insert(Messages, {PKey, Message}), - ets:insert(Queues, {QK, false}); - -perform_work_item({tied, QK}, _Messages, Queues) -> - ets:insert(Queues, {QK, false}); - -perform_work_item({deliver, QK}, _Messages, Queues) -> - %% from R12B-2 onward we could use ets:update_element/3 here - ets:delete(Queues, QK), - ets:insert(Queues, {QK, true}); - -perform_work_item({ack, QK}, _Messages, Queues) -> - ets:delete(Queues, QK). diff --git a/src/rabbit_plugin.erl b/src/rabbit_plugin.erl deleted file mode 100644 index 3064817f..00000000 --- a/src/rabbit_plugin.erl +++ /dev/null @@ -1,108 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_plugin). - --export([start_plugins/0]). - -%% TODO Think of something better than this name, probablt somewhere in /etc --define(PLUGIN_CONF_DIR, "plugins"). - - -%% Loads shared libraries and plugins that exist in the plugin dir -start_plugins() -> - io:format("~nstarting plugins...~n"), - [begin - [_Dir,PluginString|_] = string:tokens(Config,"/."), - Plugin = list_to_atom(PluginString), - case parse_plugin_config(PluginString) of - ok -> - ensure_dependencies(Plugin), - case application:start(Plugin) of - {error, Reason} -> - rabbit_log:error("Error starting ~p plugin: " - "~p~n", [Plugin, Reason]); - _ -> - io:format("...started ~p plugin ~n", [Plugin]) - end; - _ -> ok - end - end || Config <- filelib:wildcard("plugins/*.ez")], - io:format("...done~n"). - -%% Reads the application descriptor and makes sure all of the applications -%% it depends on are loaded -ensure_dependencies(Plugin) when is_atom(Plugin)-> - case application:load(Plugin) of - ok -> ok; - {error, {already_loaded, Plugin}} -> ok; - {error, Reason} -> - rabbit_log:error("Error loading descriptor for ~p plugin: " - "~p~n", [Plugin, Reason]), - exit(plugin_not_loadable) - end, - {ok, Required} = application:get_key(Plugin, applications), - {Running, _, _} = lists:unzip3(application:which_applications()), - [case lists:member(App, Running) of - true -> ok; - false -> application:start(App) - end || App <- Required], - run_one_shot(Plugin). - -%% This allows an OTP to run a single shot function that it -%% specifies in it's descriptor without having to run a process -run_one_shot(Plugin) -> - case application:get_env(Plugin, one_shot) of - {ok, {M,F,A}} -> M:F(A); - undefined -> ok; - X -> - rabbit_log:error("Error loading one shot for ~p plugin: " - "~p~n", [Plugin, X]) - end. - -parse_plugin_config(Plugin) when is_list(Plugin)-> - Atom = list_to_atom(Plugin), - Conf = ?PLUGIN_CONF_DIR ++ "/" ++ Plugin ++ ".cfg", - case file:consult(Conf) of - {ok, Terms} -> - lists:foreach(fun({K,V}) -> - application:set_env(Atom, K, V) - end, Terms), - ok; - {error, enoent} -> - rabbit_log:warning("Could not locate a config file for the ~p " - "plugin, this might be normal though~n", [Atom]), - ok; - {error, _} -> - rabbit_log:error("Error accessing config file for ~p - plugin, ", [Atom]), - error - end. diff --git a/src/rabbit_plugin_activator.erl b/src/rabbit_plugin_activator.erl deleted file mode 100644 index 4fcfab78..00000000 --- a/src/rabbit_plugin_activator.erl +++ /dev/null @@ -1,254 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_plugin_activator). - --export([start/0, stop/0]). - --define(DefaultPluginDir, "plugins"). --define(DefaultUnpackedPluginDir, "priv/plugins"). --define(DefaultRabbitEBin, "ebin"). --define(BaseApps, [rabbit]). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - %% Ensure Rabbit is loaded so we can access it's environment - application:load(rabbit), - - %% Determine our various directories - PluginDir = get_env(plugins_dir, ?DefaultPluginDir), - UnpackedPluginDir = get_env(plugins_expand_dir, ?DefaultUnpackedPluginDir), - RabbitEBin = get_env(rabbit_ebin, ?DefaultRabbitEBin), - - RootName = RabbitEBin ++ "/rabbit", - - %% Unpack any .ez plugins - unpack_ez_plugins(PluginDir, UnpackedPluginDir), - - %% Build a list of required apps based on the fixed set, and any plugins - RequiredApps = ?BaseApps ++ - find_plugins(PluginDir) ++ - find_plugins(UnpackedPluginDir), - - %% Build the entire set of dependencies - this will load the - %% applications along the way - AllApps = case catch sets:to_list(expand_dependencies(RequiredApps)) of - {failed_to_load_app, App, Err} -> - error("failed to load application ~s:~n~p", [App, Err]); - AppList -> - AppList - end, - AppVersions = [determine_version(App) || App <- AllApps], - {rabbit, RabbitVersion} = proplists:lookup(rabbit, AppVersions), - - %% Build the overall release descriptor - RDesc = {release, - {"rabbit", RabbitVersion}, - {erts, erlang:system_info(version)}, - AppVersions}, - - %% Write it out to ebin/rabbit.rel - file:write_file(RootName ++ ".rel", io_lib:format("~p.~n", [RDesc])), - - %% Compile the script - ScriptFile = RootName ++ ".script", - case systools:make_script(RootName, [local, silent]) of - {ok, Module, Warnings} -> - %% This gets lots of spurious no-source warnings when we - %% have .ez files, so we want to supress them to prevent - %% hiding real issues. On Ubuntu, we also get warnings - %% about kernel/stdlib sources being out of date, which we - %% also ignore for the same reason. - WarningStr = Module:format_warning( - [W || W <- Warnings, - case W of - {warning, {source_not_found, _}} -> false; - {warning, {obj_out_of_date, {_,_,WApp,_,_}}} - when WApp == mnesia; - WApp == stdlib; - WApp == kernel; - WApp == sasl; - WApp == os_mon -> false; - _ -> true - end]), - case length(WarningStr) of - 0 -> ok; - _ -> io:format("~s", [WarningStr]) - end, - ok; - {error, Module, Error} -> - error("generation of boot script file ~s failed:~n~s", - [ScriptFile, Module:format_error(Error)]) - end, - - case post_process_script(ScriptFile) of - ok -> ok; - {error, Reason} -> - error("post processing of boot script file ~s failed:~n~w", - [ScriptFile, Reason]) - end, - case systools:script2boot(RootName) of - ok -> ok; - error -> error("failed to compile boot script file ~s", [ScriptFile]) - end, - halt(), - ok. - -stop() -> - ok. - -get_env(Key, Default) -> - case application:get_env(rabbit, Key) of - {ok, V} -> V; - _ -> Default - end. - -determine_version(App) -> - application:load(App), - {ok, Vsn} = application:get_key(App, vsn), - {App, Vsn}. - -assert_dir(Dir) -> - case filelib:is_dir(Dir) of - true -> ok; - false -> ok = filelib:ensure_dir(Dir), - ok = file:make_dir(Dir) - end. - -delete_dir(Dir) -> - case filelib:is_dir(Dir) of - true -> - case file:list_dir(Dir) of - {ok, Files} -> - [case Dir ++ "/" ++ F of - Fn -> - case filelib:is_dir(Fn) and not(is_symlink(Fn)) of - true -> delete_dir(Fn); - false -> file:delete(Fn) - end - end || F <- Files] - end, - ok = file:del_dir(Dir); - false -> - ok - end. - -is_symlink(Name) -> - case file:read_link(Name) of - {ok, _} -> true; - _ -> false - end. - -unpack_ez_plugins(PluginSrcDir, PluginDestDir) -> - %% Eliminate the contents of the destination directory - delete_dir(PluginDestDir), - - assert_dir(PluginDestDir), - [unpack_ez_plugin(PluginName, PluginDestDir) || - PluginName <- filelib:wildcard(PluginSrcDir ++ "/*.ez")]. - -unpack_ez_plugin(PluginFn, PluginDestDir) -> - zip:unzip(PluginFn, [{cwd, PluginDestDir}]), - ok. - -find_plugins(PluginDir) -> - [prepare_dir_plugin(PluginName) || - PluginName <- filelib:wildcard(PluginDir ++ "/*/ebin/*.app")]. - -prepare_dir_plugin(PluginAppDescFn) -> - %% Add the plugin ebin directory to the load path - PluginEBinDirN = filename:dirname(PluginAppDescFn), - code:add_path(PluginEBinDirN), - - %% We want the second-last token - NameTokens = string:tokens(PluginAppDescFn,"/."), - PluginNameString = lists:nth(length(NameTokens) - 1, NameTokens), - list_to_atom(PluginNameString). - -expand_dependencies(Pending) -> - expand_dependencies(sets:new(), Pending). -expand_dependencies(Current, []) -> - Current; -expand_dependencies(Current, [Next|Rest]) -> - case sets:is_element(Next, Current) of - true -> - expand_dependencies(Current, Rest); - false -> - case application:load(Next) of - ok -> - ok; - {error, {already_loaded, _}} -> - ok; - {error, Reason} -> - throw({failed_to_load_app, Next, Reason}) - end, - {ok, Required} = application:get_key(Next, applications), - Unique = [A || A <- Required, not(sets:is_element(A, Current))], - expand_dependencies(sets:add_element(Next, Current), Rest ++ Unique) - end. - -post_process_script(ScriptFile) -> - case file:consult(ScriptFile) of - {ok, [{script, Name, Entries}]} -> - NewEntries = lists:flatmap(fun process_entry/1, Entries), - case file:open(ScriptFile, [write]) of - {ok, Fd} -> - io:format(Fd, "%% script generated at ~w ~w~n~p.~n", - [date(), time(), {script, Name, NewEntries}]), - file:close(Fd), - ok; - {error, OReason} -> - {error, {failed_to_open_script_file_for_writing, OReason}} - end; - {error, Reason} -> - {error, {failed_to_load_script, Reason}} - end. - -process_entry(Entry = {apply,{application,start_boot,[stdlib,permanent]}}) -> - [Entry, {apply,{rabbit,prepare,[]}}]; -process_entry(Entry) -> - [Entry]. - -error(Fmt, Args) -> - io:format("ERROR: " ++ Fmt ++ "~n", Args), - halt(1). diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl deleted file mode 100644 index 46a6e008..00000000 --- a/src/rabbit_queue_index.erl +++ /dev/null @@ -1,885 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_index). - --export([init/1, terminate/1, terminate_and_erase/1, write_published/4, - write_delivered/2, write_acks/2, sync_seq_ids/2, flush_journal/1, - read_segment_entries/2, next_segment_boundary/1, segment_size/0, - find_lowest_seq_id_seg_and_next_seq_id/1, start_msg_store/0, - start_msg_store/1]). - --define(CLEAN_FILENAME, "clean.dot"). - -%%---------------------------------------------------------------------------- -%% ---- Journal details ---- - --define(MAX_JOURNAL_ENTRY_COUNT, 262144). --define(JOURNAL_FILENAME, "journal.jif"). - --define(PUB_PERSIST_JPREFIX, 2#00). --define(PUB_TRANS_JPREFIX, 2#01). --define(DEL_JPREFIX, 2#10). --define(ACK_JPREFIX, 2#11). --define(JPREFIX_BITS, 2). --define(SEQ_BYTES, 8). --define(SEQ_BITS, ((?SEQ_BYTES * 8) - ?JPREFIX_BITS)). - -%% ---- Segment details ---- - --define(SEGMENT_EXTENSION, ".idx"). - --define(REL_SEQ_BITS, 14). --define(SEGMENT_ENTRY_COUNT, 16384). %% trunc(math:pow(2,?REL_SEQ_BITS))). - -%% seq only is binary 00 followed by 14 bits of rel seq id -%% (range: 0 - 16383) --define(REL_SEQ_ONLY_PREFIX, 00). --define(REL_SEQ_ONLY_PREFIX_BITS, 2). --define(REL_SEQ_ONLY_ENTRY_LENGTH_BYTES, 2). - -%% publish record is binary 1 followed by a bit for is_persistent, -%% then 14 bits of rel seq id, and 128 bits of md5sum msg id --define(PUBLISH_PREFIX, 1). --define(PUBLISH_PREFIX_BITS, 1). - --define(MSG_ID_BYTES, 16). %% md5sum is 128 bit or 16 bytes --define(MSG_ID_BITS, (?MSG_ID_BYTES * 8)). -%% 16 bytes for md5sum + 2 for seq, bits and prefix --define(PUBLISH_RECORD_LENGTH_BYTES, ?MSG_ID_BYTES + 2). - -%% 1 publish, 1 deliver, 1 ack per msg --define(SEGMENT_TOTAL_SIZE, ?SEGMENT_ENTRY_COUNT * - (?PUBLISH_RECORD_LENGTH_BYTES + - (2 * ?REL_SEQ_ONLY_ENTRY_LENGTH_BYTES))). - -%%---------------------------------------------------------------------------- - --record(qistate, - { dir, - segments, - journal_handle, - dirty_count - }). - --record(segment, - { pubs, - acks, - handle, - journal_entries, - path, - num - }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(hdl() :: ('undefined' | any())). --type(segment() :: ('undefined' | - #segment { pubs :: non_neg_integer(), - acks :: non_neg_integer(), - handle :: hdl(), - journal_entries :: array(), - path :: file_path(), - num :: non_neg_integer() - })). --type(msg_id() :: binary()). --type(seq_id() :: integer()). --type(seg_dict() :: {dict(), [segment()]}). --type(qistate() :: #qistate { dir :: file_path(), - segments :: seg_dict(), - journal_handle :: hdl(), - dirty_count :: integer() - }). - --spec(init/1 :: (queue_name()) -> {non_neg_integer(), qistate()}). --spec(terminate/1 :: (qistate()) -> qistate()). --spec(terminate_and_erase/1 :: (qistate()) -> qistate()). --spec(write_published/4 :: (msg_id(), seq_id(), boolean(), qistate()) - -> qistate()). --spec(write_delivered/2 :: (seq_id(), qistate()) -> qistate()). --spec(write_acks/2 :: ([seq_id()], qistate()) -> qistate()). --spec(sync_seq_ids/2 :: ([seq_id()], qistate()) -> qistate()). --spec(flush_journal/1 :: (qistate()) -> qistate()). --spec(read_segment_entries/2 :: (seq_id(), qistate()) -> - {[{msg_id(), seq_id(), boolean(), boolean()}], qistate()}). --spec(next_segment_boundary/1 :: (seq_id()) -> seq_id()). --spec(segment_size/0 :: () -> non_neg_integer()). --spec(find_lowest_seq_id_seg_and_next_seq_id/1 :: (qistate()) -> - {non_neg_integer(), non_neg_integer(), qistate()}). --spec(start_msg_store/0 :: () -> 'ok'). --spec(start_msg_store/1 :: ([amqqueue()]) -> 'ok'). - --endif. - - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -init(Name) -> - State = blank_state(Name), - %% 1. Load the journal completely. This will also load segments - %% which have entries in the journal and remove duplicates. - %% The counts will correctly reflect the combination of the - %% segment and the journal. - State1 = load_journal(State), - %% 2. Flush the journal. This makes life easier for everyone, as - %% it means there won't be any publishes in the journal alone. - State2 = #qistate { dir = Dir, segments = Segments, - dirty_count = DCount } = flush_journal(State1), - %% 3. Load each segment in turn and filter out messages that are - %% not in the msg_store, by adding acks to the journal. These - %% acks only go to the RAM journal as it doesn't matter if we - %% lose them. Also mark delivered if not clean shutdown. Also - %% find the number of unacked messages. - AllSegs = all_segment_nums(State2), - CleanShutdown = detect_clean_shutdown(Dir), - %% We know the journal is empty here, so we don't need to combine - %% with the journal, and we don't need to worry about messages - %% that have been acked. - {Segments1, Count, DCount1} = - lists:foldl( - fun (Seg, {Segments2, CountAcc, DCountAcc}) -> - Segment = segment_find_or_new(Seg, Dir, Segments2), - {SegEntries, PubCount, AckCount, Segment1} = - load_segment(false, Segment), - {Segment2 = #segment { pubs = PubCount1, acks = AckCount1 }, - DCountAcc1} = - array:sparse_foldl( - fun (RelSeq, {{MsgId, _IsPersistent}, Del, no_ack}, - {Segment3, DCountAcc2}) -> - {Segment4, DCountDelta} = - maybe_add_to_journal( - rabbit_msg_store:contains(MsgId), - CleanShutdown, Del, RelSeq, Segment3), - {Segment4, DCountAcc2 + DCountDelta} - end, {Segment1 #segment { pubs = PubCount, - acks = AckCount }, DCountAcc}, - SegEntries), - {segment_store(Segment2, Segments2), - CountAcc + PubCount1 - AckCount1, DCountAcc1} - end, {Segments, 0, DCount}, AllSegs), - {Count, State2 #qistate { segments = Segments1, dirty_count = DCount1 }}. - -maybe_add_to_journal( true, true, _Del, _RelSeq, Segment) -> - {Segment, 0}; -maybe_add_to_journal( true, false, del, _RelSeq, Segment) -> - {Segment, 0}; -maybe_add_to_journal( true, false, _Del, RelSeq, Segment) -> - {add_to_journal(RelSeq, del, Segment), 1}; -maybe_add_to_journal(false, _, del, RelSeq, Segment) -> - {add_to_journal(RelSeq, ack, Segment), 1}; -maybe_add_to_journal(false, _, _Del, RelSeq, Segment) -> - {add_to_journal(RelSeq, ack, add_to_journal(RelSeq, del, Segment)), 2}. - -terminate(State) -> - terminate(true, State). - -terminate_and_erase(State) -> - State1 = terminate(State), - ok = delete_queue_directory(State1 #qistate.dir), - State1. - -write_published(MsgId, SeqId, IsPersistent, State) when is_binary(MsgId) -> - ?MSG_ID_BYTES = size(MsgId), - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, [<<(case IsPersistent of - true -> ?PUB_PERSIST_JPREFIX; - false -> ?PUB_TRANS_JPREFIX - end):?JPREFIX_BITS, SeqId:?SEQ_BITS>>, MsgId]), - maybe_flush_journal(add_to_journal(SeqId, {MsgId, IsPersistent}, State1)). - -write_delivered(SeqId, State) -> - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, <>), - maybe_flush_journal(add_to_journal(SeqId, del, State1)). - -write_acks(SeqIds, State) -> - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, [<> || - SeqId <- SeqIds]), - maybe_flush_journal(lists:foldl(fun (SeqId, StateN) -> - add_to_journal(SeqId, ack, StateN) - end, State1, SeqIds)). - -sync_seq_ids(_SeqIds, State = #qistate { journal_handle = undefined }) -> - State; -sync_seq_ids(_SeqIds, State = #qistate { journal_handle = JournalHdl }) -> - ok = file_handle_cache:sync(JournalHdl), - State. - -flush_journal(State = #qistate { dirty_count = 0 }) -> - State; -flush_journal(State = #qistate { segments = Segments }) -> - Segments1 = - segment_fold( - fun (_Seg, #segment { journal_entries = JEntries, pubs = PubCount, - acks = AckCount } = Segment, SegmentsN) -> - case PubCount > 0 andalso PubCount == AckCount of - true -> ok = delete_segment(Segment), - SegmentsN; - false -> segment_store( - append_journal_to_segment(Segment, JEntries), - SegmentsN) - end - end, segments_new(), Segments), - {JournalHdl, State1} = - get_journal_handle(State #qistate { segments = Segments1 }), - ok = file_handle_cache:clear(JournalHdl), - State1 #qistate { dirty_count = 0 }. - -append_journal_to_segment(Segment, JEntries) -> - case array:sparse_size(JEntries) of - 0 -> Segment; - _ -> {Hdl, Segment1} = get_segment_handle(Segment), - array:sparse_foldl(fun write_entry_to_segment/3, Hdl, JEntries), - ok = file_handle_cache:sync(Hdl), - Segment1 #segment { journal_entries = array_new() } - end. - -read_segment_entries(InitSeqId, State = #qistate { segments = Segments, - dir = Dir }) -> - {Seg, 0} = seq_id_to_seg_and_rel_seq_id(InitSeqId), - Segment = segment_find_or_new(Seg, Dir, Segments), - {SegEntries, _PubCount, _AckCount, Segment1} = load_segment(false, Segment), - #segment { journal_entries = JEntries } = Segment1, - {array:sparse_foldr( - fun (RelSeq, {{MsgId, IsPersistent}, IsDelivered, no_ack}, Acc) -> - [ {MsgId, reconstruct_seq_id(Seg, RelSeq), - IsPersistent, IsDelivered == del} | Acc ] - end, [], journal_plus_segment(JEntries, SegEntries)), - State #qistate { segments = segment_store(Segment1, Segments) }}. - -next_segment_boundary(SeqId) -> - {Seg, _RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - reconstruct_seq_id(Seg + 1, 0). - -segment_size() -> - ?SEGMENT_ENTRY_COUNT. - -find_lowest_seq_id_seg_and_next_seq_id(State) -> - SegNums = all_segment_nums(State), - %% We don't want the lowest seq_id, merely the seq_id of the start - %% of the lowest segment. That seq_id may not actually exist, but - %% that's fine. The important thing is that the segment exists and - %% the seq_id reported is on a segment boundary. - - %% We also don't really care about the max seq_id. Just start the - %% next segment: it makes life much easier. - - %% SegNums is sorted, ascending. - {LowSeqIdSeg, NextSeqId} = - case SegNums of - [] -> {0, 0}; - [MinSeg|_] -> {reconstruct_seq_id(MinSeg, 0), - reconstruct_seq_id(1 + lists:last(SegNums), 0)} - end, - {LowSeqIdSeg, NextSeqId, State}. - -start_msg_store() -> - DurableQueues = rabbit_amqqueue:find_durable_queues(), - ok = start_msg_store(DurableQueues), - ok = rabbit_amqqueue:start(), - {ok, _RealDurableQueues} = rabbit_amqqueue:recover(DurableQueues), - ok. - -start_msg_store(DurableQueues) -> - DurableDict = - dict:from_list([ {queue_name_to_dir_name(Queue #amqqueue.name), - Queue #amqqueue.name} || Queue <- DurableQueues ]), - QueuesDir = queues_dir(), - Directories = case file:list_dir(QueuesDir) of - {ok, Entries} -> - [ Entry || Entry <- Entries, - filelib:is_dir( - filename:join(QueuesDir, Entry)) ]; - {error, enoent} -> - [] - end, - DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), - {DurableQueueNames, TransientDirs} = - lists:foldl( - fun (QueueDir, {DurableAcc, TransientAcc}) -> - case sets:is_element(QueueDir, DurableDirectories) of - true -> - {[dict:fetch(QueueDir, DurableDict) | DurableAcc], - TransientAcc}; - false -> - {DurableAcc, [QueueDir | TransientAcc]} - end - end, {[], []}, Directories), - MsgStoreDir = filename:join(rabbit_mnesia:dir(), "msg_store"), - ok = rabbit_sup:start_child(rabbit_msg_store, [MsgStoreDir, - fun queue_index_walker/1, - DurableQueueNames]), - lists:foreach(fun (DirName) -> - Dir = filename:join(queues_dir(), DirName), - ok = delete_queue_directory(Dir) - end, TransientDirs), - ok. - -%%---------------------------------------------------------------------------- -%% Msg Store Startup Delta Function -%%---------------------------------------------------------------------------- - -queue_index_walker([]) -> - finished; -queue_index_walker([QueueName|QueueNames]) -> - State = blank_state(QueueName), - State1 = load_journal(State), - SegNums = all_segment_nums(State1), - queue_index_walker({SegNums, State1, QueueNames}); - -queue_index_walker({[], State, QueueNames}) -> - _State = terminate(false, State), - queue_index_walker(QueueNames); -queue_index_walker({[Seg | SegNums], State, QueueNames}) -> - SeqId = reconstruct_seq_id(Seg, 0), - {Messages, State1} = read_segment_entries(SeqId, State), - queue_index_walker({Messages, State1, SegNums, QueueNames}); - -queue_index_walker({[], State, SegNums, QueueNames}) -> - queue_index_walker({SegNums, State, QueueNames}); -queue_index_walker({[{MsgId, _SeqId, IsPersistent, _IsDelivered} | Msgs], - State, SegNums, QueueNames}) -> - case IsPersistent of - true -> {MsgId, 1, {Msgs, State, SegNums, QueueNames}}; - false -> queue_index_walker({Msgs, State, SegNums, QueueNames}) - end. - -%%---------------------------------------------------------------------------- -%% Minors -%%---------------------------------------------------------------------------- - -maybe_flush_journal(State = #qistate { dirty_count = DCount }) - when DCount > ?MAX_JOURNAL_ENTRY_COUNT -> - flush_journal(State); -maybe_flush_journal(State) -> - State. - -all_segment_nums(#qistate { dir = Dir, segments = Segments }) -> - lists:sort( - sets:to_list( - lists:foldl( - fun (SegName, Set) -> - sets:add_element( - list_to_integer( - lists:takewhile(fun(C) -> $0 =< C andalso C =< $9 end, - SegName)), Set) - end, sets:from_list(segment_fetch_keys(Segments)), - filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)))). - -blank_state(QueueName) -> - StrName = queue_name_to_dir_name(QueueName), - Dir = filename:join(queues_dir(), StrName), - ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - #qistate { dir = Dir, - segments = segments_new(), - journal_handle = undefined, - dirty_count = 0 - }. - -array_new() -> - array:new([{default, undefined}, fixed, {size, ?SEGMENT_ENTRY_COUNT}]). - -seq_id_to_seg_and_rel_seq_id(SeqId) -> - { SeqId div ?SEGMENT_ENTRY_COUNT, SeqId rem ?SEGMENT_ENTRY_COUNT }. - -reconstruct_seq_id(Seg, RelSeq) -> - (Seg * ?SEGMENT_ENTRY_COUNT) + RelSeq. - -seg_num_to_path(Dir, Seg) -> - SegName = integer_to_list(Seg), - filename:join(Dir, SegName ++ ?SEGMENT_EXTENSION). - -delete_segment(#segment { handle = undefined }) -> - ok; -delete_segment(#segment { handle = Hdl }) -> - ok = file_handle_cache:delete(Hdl). - -detect_clean_shutdown(Dir) -> - case file:delete(filename:join(Dir, ?CLEAN_FILENAME)) of - ok -> true; - {error, enoent} -> false - end. - -store_clean_shutdown(Dir) -> - {ok, Hdl} = file_handle_cache:open(filename:join(Dir, ?CLEAN_FILENAME), - [write, raw, binary], - [{write_buffer, unbuffered}]), - ok = file_handle_cache:close(Hdl). - -queue_name_to_dir_name(Name = #resource { kind = queue }) -> - Bin = term_to_binary(Name), - Size = 8*size(Bin), - <> = Bin, - lists:flatten(io_lib:format("~.36B", [Num])). - -queues_dir() -> - filename:join(rabbit_mnesia:dir(), "queues"). - -delete_queue_directory(Dir) -> - {ok, Entries} = file:list_dir(Dir), - ok = lists:foldl(fun (Entry, ok) -> - file:delete(filename:join(Dir, Entry)) - end, ok, Entries), - ok = file:del_dir(Dir). - -get_segment_handle(Segment = #segment { handle = undefined, path = Path }) -> - {ok, Hdl} = file_handle_cache:open(Path, - [binary, raw, read, write, - {read_ahead, ?SEGMENT_TOTAL_SIZE}], - [{write_buffer, infinity}]), - {Hdl, Segment #segment { handle = Hdl }}; -get_segment_handle(Segment = #segment { handle = Hdl }) -> - {Hdl, Segment}. - -segment_find(Seg, {_Segments, [Segment = #segment { num = Seg } |_]}) -> - {ok, Segment}; %% 1 or (2, matches head) -segment_find(Seg, {_Segments, [_, Segment = #segment { num = Seg }]}) -> - {ok, Segment}; %% 2, matches tail -segment_find(Seg, {Segments, _}) -> %% no match - dict:find(Seg, Segments). - -segment_new(Seg, Dir) -> - #segment { pubs = 0, - acks = 0, - handle = undefined, - journal_entries = array_new(), - path = seg_num_to_path(Dir, Seg), - num = Seg - }. - -segment_find_or_new(Seg, Dir, Segments) -> - case segment_find(Seg, Segments) of - error -> segment_new(Seg, Dir); - {ok, Segment} -> Segment - end. - -segment_store(Segment = #segment { num = Seg }, %% 1 or (2, matches head) - {Segments, [#segment { num = Seg } | Tail]}) -> - {Segments, [Segment | Tail]}; -segment_store(Segment = #segment { num = Seg }, %% 2, matches tail - {Segments, [SegmentA, #segment { num = Seg }]}) -> - {Segments, [SegmentA, Segment]}; -segment_store(Segment = #segment { num = Seg }, {Segments, []}) -> - {dict:erase(Seg, Segments), [Segment]}; -segment_store(Segment = #segment { num = Seg }, {Segments, [SegmentA]}) -> - {dict:erase(Seg, Segments), [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, - {Segments, [SegmentA, SegmentB]}) -> - {dict:store(SegmentB#segment.num, SegmentB, dict:erase(Seg, Segments)), - [Segment, SegmentA]}. - -segment_fold(Fun, Acc, {Segments, []}) -> - dict:fold(Fun, Acc, Segments); -segment_fold(Fun, Acc, {Segments, CachedSegments}) -> - Acc1 = lists:foldl(fun (Segment = #segment { num = Num }, AccN) -> - Fun(Num, Segment, AccN) - end, Acc, CachedSegments), - dict:fold(Fun, Acc1, Segments). - -segment_map(Fun, {Segments, CachedSegments}) -> - {dict:map(Fun, Segments), - lists:map(fun (Segment = #segment { num = Num }) -> Fun(Num, Segment) end, - CachedSegments)}. - -segment_fetch_keys({Segments, CachedSegments}) -> - lists:map(fun (Segment) -> Segment#segment.num end, CachedSegments) ++ - dict:fetch_keys(Segments). - -segments_new() -> - {dict:new(), []}. - -get_journal_handle(State = - #qistate { journal_handle = undefined, dir = Dir }) -> - Path = filename:join(Dir, ?JOURNAL_FILENAME), - {ok, Hdl} = file_handle_cache:open(Path, - [binary, raw, read, write, - {read_ahead, ?SEGMENT_TOTAL_SIZE}], - [{write_buffer, infinity}]), - {Hdl, State #qistate { journal_handle = Hdl }}; -get_journal_handle(State = #qistate { journal_handle = Hdl }) -> - {Hdl, State}. - -bool_to_int(true ) -> 1; -bool_to_int(false) -> 0. - -write_entry_to_segment(_RelSeq, {{_MsgId, _IsPersistent}, del, ack}, Hdl) -> - Hdl; -write_entry_to_segment(RelSeq, {Pub, Del, Ack}, Hdl) -> - ok = case Pub of - no_pub -> - ok; - {MsgId, IsPersistent} -> - file_handle_cache:append( - Hdl, [<>, MsgId]) - end, - ok = case {Del, Ack} of - {no_del, no_ack} -> - ok; - _ -> - Binary = <>, - file_handle_cache:append( - Hdl, case {Del, Ack} of - {del, ack} -> [Binary, Binary]; - _ -> Binary - end) - end, - Hdl. - -terminate(StoreShutdown, State = - #qistate { journal_handle = JournalHdl, - dir = Dir, segments = Segments }) -> - ok = case JournalHdl of - undefined -> ok; - _ -> file_handle_cache:close(JournalHdl) - end, - ok = segment_fold( - fun (_Seg, #segment { handle = undefined }, ok) -> - ok; - (_Seg, #segment { handle = Hdl }, ok) -> - file_handle_cache:close(Hdl) - end, ok, Segments), - case StoreShutdown of - true -> store_clean_shutdown(Dir); - false -> ok - end, - State #qistate { journal_handle = undefined, segments = segments_new() }. - -%%---------------------------------------------------------------------------- -%% Majors -%%---------------------------------------------------------------------------- - -%% Loading segments - -%% Does not do any combining with the journal at all. The PubCount -%% that comes back is the number of publishes in the segment. The -%% number of unacked msgs is PubCount - AckCount. If KeepAcks is -%% false, then array:sparse_size(SegEntries) == PubCount - -%% AckCount. If KeepAcks is true, then array:sparse_size(SegEntries) -%% == PubCount. -load_segment(KeepAcks, - Segment = #segment { path = Path, handle = SegHdl }) -> - SegmentExists = case SegHdl of - undefined -> filelib:is_file(Path); - _ -> true - end, - case SegmentExists of - false -> - {array_new(), 0, 0, Segment}; - true -> - {Hdl, Segment1} = get_segment_handle(Segment), - {ok, 0} = file_handle_cache:position(Hdl, bof), - {SegEntries, PubCount, AckCount} = - load_segment_entries(KeepAcks, Hdl, array_new(), 0, 0), - {SegEntries, PubCount, AckCount, Segment1} - end. - -load_segment_entries(KeepAcks, Hdl, SegEntries, PubCount, AckCount) -> - case file_handle_cache:read(Hdl, ?REL_SEQ_ONLY_ENTRY_LENGTH_BYTES) of - {ok, <>} -> - {AckCount1, SegEntries1} = - deliver_or_ack_msg(KeepAcks, RelSeq, AckCount, SegEntries), - load_segment_entries(KeepAcks, Hdl, SegEntries1, PubCount, - AckCount1); - {ok, <>} -> - %% because we specify /binary, and binaries are complete - %% bytes, the size spec is in bytes, not bits. - {ok, MsgId} = file_handle_cache:read(Hdl, ?MSG_ID_BYTES), - SegEntries1 = - array:set(RelSeq, - {{MsgId, 1 == IsPersistentNum}, no_del, no_ack}, - SegEntries), - load_segment_entries(KeepAcks, Hdl, SegEntries1, PubCount + 1, - AckCount); - _ErrOrEoF -> - {SegEntries, PubCount, AckCount} - end. - -deliver_or_ack_msg(KeepAcks, RelSeq, AckCount, SegEntries) -> - case array:get(RelSeq, SegEntries) of - {Pub, no_del, no_ack} -> - {AckCount, array:set(RelSeq, {Pub, del, no_ack}, SegEntries)}; - {Pub, del, no_ack} when KeepAcks -> - {AckCount + 1, array:set(RelSeq, {Pub, del, ack}, SegEntries)}; - {_Pub, del, no_ack} -> - {AckCount + 1, array:reset(RelSeq, SegEntries)} - end. - -%% Loading Journal. This isn't idempotent and will mess up the counts -%% if you call it more than once on the same state. Assumes the counts -%% are 0 to start with. - -load_journal(State) -> - {JournalHdl, State1} = get_journal_handle(State), - {ok, 0} = file_handle_cache:position(JournalHdl, 0), - State2 = #qistate { segments = Segments } = load_journal_entries(State1), - Segments1 = - segment_map( - fun (_Seg, Segment = #segment { journal_entries = JEntries, - pubs = PubCountInJournal, - acks = AckCountInJournal }) -> - %% We want to keep acks in so that we can remove - %% them if duplicates are in the journal. The counts - %% here are purely from the segment itself. - {SegEntries, PubCountInSeg, AckCountInSeg, Segment1} = - load_segment(true, Segment), - %% Removed counts here are the number of pubs and - %% acks that are duplicates - i.e. found in both the - %% segment and journal. - {JEntries1, PubsRemoved, AcksRemoved} = - journal_minus_segment(JEntries, SegEntries), - PubCount1 = PubCountInSeg + PubCountInJournal - PubsRemoved, - AckCount1 = AckCountInSeg + AckCountInJournal - AcksRemoved, - Segment1 #segment { journal_entries = JEntries1, - pubs = PubCount1, - acks = AckCount1 } - end, Segments), - State2 #qistate { segments = Segments1 }. - -load_journal_entries(State = #qistate { journal_handle = Hdl }) -> - case file_handle_cache:read(Hdl, ?SEQ_BYTES) of - {ok, <>} -> - case Prefix of - ?DEL_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, del, State)); - ?ACK_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, ack, State)); - _ -> - case file_handle_cache:read(Hdl, ?MSG_ID_BYTES) of - {ok, <>} -> - %% work around for binary data - %% fragmentation. See - %% rabbit_msg_file:read_next/2 - <> = - <>, - Publish = {MsgId, case Prefix of - ?PUB_PERSIST_JPREFIX -> true; - ?PUB_TRANS_JPREFIX -> false - end}, - load_journal_entries( - add_to_journal(SeqId, Publish, State)); - _ErrOrEoF -> %% err, we've lost at least a publish - State - end - end; - _ErrOrEoF -> State - end. - -add_to_journal(SeqId, Action, State = #qistate { dirty_count = DCount, - segments = Segments, - dir = Dir }) -> - {Seg, RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - Segment = segment_find_or_new(Seg, Dir, Segments), - Segment1 = add_to_journal(RelSeq, Action, Segment), - State #qistate { dirty_count = DCount + 1, - segments = segment_store(Segment1, Segments) }; - -add_to_journal(RelSeq, Action, - Segment = #segment { journal_entries = JEntries, - pubs = PubCount, acks = AckCount }) -> - Segment1 = Segment #segment { - journal_entries = add_to_journal(RelSeq, Action, JEntries) }, - case Action of - del -> Segment1; - ack -> Segment1 #segment { acks = AckCount + 1 }; - {_MsgId, _IsPersistent} -> Segment1 #segment { pubs = PubCount + 1 } - end; - -%% This is a more relaxed version of deliver_or_ack_msg because we can -%% have dels or acks in the journal without the corresponding -%% pub. Also, always want to keep acks. Things must occur in the right -%% order though. -add_to_journal(RelSeq, Action, SegJArray) -> - case array:get(RelSeq, SegJArray) of - undefined -> - array:set(RelSeq, - case Action of - {_Msg, _IsPersistent} -> {Action, no_del, no_ack}; - del -> {no_pub, del, no_ack}; - ack -> {no_pub, no_del, ack} - end, SegJArray); - ({Pub, no_del, no_ack}) when Action == del -> - array:set(RelSeq, {Pub, del, no_ack}, SegJArray); - ({Pub, Del, no_ack}) when Action == ack -> - array:set(RelSeq, {Pub, Del, ack}, SegJArray) - end. - -%% Combine what we have just read from a segment file with what we're -%% holding for that segment in memory. There must be no -%% duplicates. Used when providing segment entries to the variable -%% queue. -journal_plus_segment(JEntries, SegEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, SegEntriesOut) -> - SegEntry = case array:get(RelSeq, SegEntriesOut) of - undefined -> not_found; - SObj = {_, _, _} -> SObj - end, - journal_plus_segment(JObj, SegEntry, RelSeq, SegEntriesOut) - end, SegEntries, JEntries). - -%% Here, the Out is the Seg Array which we may be adding to (for -%% items only in the journal), modifying (bits in both), or erasing -%% from (ack in journal, not segment). -journal_plus_segment(Obj = {{_MsgId, _IsPersistent}, no_del, no_ack}, - not_found, - RelSeq, Out) -> - array:set(RelSeq, Obj, Out); -journal_plus_segment(Obj = {{_MsgId, _IsPersistent}, del, no_ack}, - not_found, - RelSeq, Out) -> - array:set(RelSeq, Obj, Out); -journal_plus_segment({{_MsgId, _IsPersistent}, del, ack}, - not_found, - RelSeq, Out) -> - array:reset(RelSeq, Out); - -journal_plus_segment({no_pub, del, no_ack}, - {Pub = {_MsgId, _IsPersistent}, no_del, no_ack}, - RelSeq, Out) -> - array:set(RelSeq, {Pub, del, no_ack}, Out); - -journal_plus_segment({no_pub, del, ack}, - {{_MsgId, _IsPersistent}, no_del, no_ack}, - RelSeq, Out) -> - array:reset(RelSeq, Out); -journal_plus_segment({no_pub, no_del, ack}, - {{_MsgId, _IsPersistent}, del, no_ack}, - RelSeq, Out) -> - array:reset(RelSeq, Out). - -%% Remove from the journal entries for a segment, items that are -%% duplicates of entries found in the segment itself. Used on start up -%% to clean up the journal. -journal_minus_segment(JEntries, SegEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {JEntriesOut, PubsRemoved, AcksRemoved}) -> - SegEntry = case array:get(RelSeq, SegEntries) of - undefined -> not_found; - SObj = {_, _, _} -> SObj - end, - journal_minus_segment(JObj, SegEntry, RelSeq, JEntriesOut, - PubsRemoved, AcksRemoved) - end, {array_new(), 0, 0}, JEntries). - -%% Here, the Out is a fresh journal that we're filling with valid -%% entries. PubsRemoved and AcksRemoved only get increased when the a -%% publish or ack is in both the journal and the segment. - -%% Both the same. Must be at least the publish -journal_minus_segment(Obj, Obj = {{_MsgId, _IsPersistent}, _Del, no_ack}, - _RelSeq, Out, PubsRemoved, AcksRemoved) -> - {Out, PubsRemoved + 1, AcksRemoved}; -journal_minus_segment(Obj, Obj = {{_MsgId, _IsPersistent}, _Del, ack}, - _RelSeq, Out, PubsRemoved, AcksRemoved) -> - {Out, PubsRemoved + 1, AcksRemoved + 1}; - -%% Just publish in journal -journal_minus_segment(Obj = {{_MsgId, _IsPersistent}, no_del, no_ack}, - not_found, - RelSeq, Out, PubsRemoved, AcksRemoved) -> - {array:set(RelSeq, Obj, Out), PubsRemoved, AcksRemoved}; - -%% Just deliver in journal -journal_minus_segment(Obj = {no_pub, del, no_ack}, - {{_MsgId, _IsPersistent}, no_del, no_ack}, - RelSeq, Out, PubsRemoved, AcksRemoved) -> - {array:set(RelSeq, Obj, Out), PubsRemoved, AcksRemoved}; -journal_minus_segment({no_pub, del, no_ack}, - {{_MsgId, _IsPersistent}, del, no_ack}, - _RelSeq, Out, PubsRemoved, AcksRemoved) -> - {Out, PubsRemoved, AcksRemoved}; - -%% Just ack in journal -journal_minus_segment(Obj = {no_pub, no_del, ack}, - {{_MsgId, _IsPersistent}, del, no_ack}, - RelSeq, Out, PubsRemoved, AcksRemoved) -> - {array:set(RelSeq, Obj, Out), PubsRemoved, AcksRemoved}; -journal_minus_segment({no_pub, no_del, ack}, - {{_MsgId, _IsPersistent}, del, ack}, - _RelSeq, Out, PubsRemoved, AcksRemoved) -> - {Out, PubsRemoved, AcksRemoved}; - -%% Publish and deliver in journal -journal_minus_segment(Obj = {{_MsgId, _IsPersistent}, del, no_ack}, - not_found, - RelSeq, Out, PubsRemoved, AcksRemoved) -> - {array:set(RelSeq, Obj, Out), PubsRemoved, AcksRemoved}; -journal_minus_segment({Pub, del, no_ack}, - {Pub = {_MsgId, _IsPersistent}, no_del, no_ack}, - RelSeq, Out, PubsRemoved, AcksRemoved) -> - {array:set(RelSeq, {no_pub, del, no_ack}, Out), - PubsRemoved + 1, AcksRemoved}; - -%% Deliver and ack in journal -journal_minus_segment(Obj = {no_pub, del, ack}, - {{_MsgId, _IsPersistent}, no_del, no_ack}, - RelSeq, Out, PubsRemoved, AcksRemoved) -> - {array:set(RelSeq, Obj, Out), PubsRemoved, AcksRemoved}; -journal_minus_segment({no_pub, del, ack}, - {{_MsgId, _IsPersistent}, del, no_ack}, - RelSeq, Out, PubsRemoved, AcksRemoved) -> - {array:set(RelSeq, {no_pub, no_del, ack}, Out), - PubsRemoved, AcksRemoved}; -journal_minus_segment({no_pub, del, ack}, - {{_MsgId, _IsPersistent}, del, ack}, - _RelSeq, Out, PubsRemoved, AcksRemoved) -> - {Out, PubsRemoved, AcksRemoved + 1}; - -%% Publish, deliver and ack in journal -journal_minus_segment({{_MsgId, _IsPersistent}, del, ack}, - not_found, - _RelSeq, Out, PubsRemoved, AcksRemoved) -> - {Out, PubsRemoved, AcksRemoved}; -journal_minus_segment({Pub, del, ack}, - {Pub = {_MsgId, _IsPersistent}, no_del, no_ack}, - RelSeq, Out, PubsRemoved, AcksRemoved) -> - {array:set(RelSeq, {no_pub, del, ack}, Out), - PubsRemoved + 1, AcksRemoved}; -journal_minus_segment({Pub, del, ack}, - {Pub = {_MsgId, _IsPersistent}, del, no_ack}, - RelSeq, Out, PubsRemoved, AcksRemoved) -> - {array:set(RelSeq, {no_pub, no_del, ack}, Out), - PubsRemoved + 1, AcksRemoved}. diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl deleted file mode 100644 index a5145c00..00000000 --- a/src/rabbit_reader.erl +++ /dev/null @@ -1,789 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_reader). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([start_link/0, info/1, info/2]). - --export([system_continue/3, system_terminate/4, system_code_change/4]). - --export([init/1, mainloop/3]). - --export([analyze_frame/2]). - --import(gen_tcp). --import(fprof). --import(inet). --import(prim_inet). - --define(HANDSHAKE_TIMEOUT, 10). --define(NORMAL_TIMEOUT, 3). --define(CLOSING_TIMEOUT, 1). --define(CHANNEL_TERMINATION_TIMEOUT, 3). - -%--------------------------------------------------------------------------- - --record(v1, {sock, connection, callback, recv_ref, connection_state}). - --define(INFO_KEYS, - [pid, address, port, peer_address, peer_port, - recv_oct, recv_cnt, send_oct, send_cnt, send_pend, - state, channels, user, vhost, timeout, frame_max, client_properties]). - -%% connection lifecycle -%% -%% all state transitions and terminations are marked with *...* -%% -%% The lifecycle begins with: start handshake_timeout timer, *pre-init* -%% -%% all states, unless specified otherwise: -%% socket error -> *exit* -%% socket close -> *throw* -%% writer send failure -> *throw* -%% forced termination -> *exit* -%% handshake_timeout -> *throw* -%% pre-init: -%% receive protocol header -> send connection.start, *starting* -%% starting: -%% receive connection.start_ok -> send connection.tune, *tuning* -%% tuning: -%% receive connection.tune_ok -> start heartbeats, *opening* -%% opening: -%% receive connection.open -> send connection.open_ok, *running* -%% running: -%% receive connection.close -> -%% tell channels to terminate gracefully -%% if no channels then send connection.close_ok, start -%% terminate_connection timer, *closed* -%% else *closing* -%% forced termination -%% -> wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *exit* -%% channel exit with hard error -%% -> log error, wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *closed* -%% channel exit with soft error -%% -> log error, mark channel as closing, *running* -%% handshake_timeout -> ignore, *running* -%% heartbeat timeout -> *throw* -%% closing: -%% socket close -> *terminate* -%% receive frame -> ignore, *closing* -%% handshake_timeout -> ignore, *closing* -%% heartbeat timeout -> *throw* -%% channel exit -> -%% if abnormal exit then log error -%% if last channel to exit then send connection.close_ok, start -%% terminate_connection timer, *closing* -%% -> log error, mark channel as closing -%% closed: -%% socket close -> *terminate* -%% receive connection.close_ok -> self() ! terminate_connection, -%% *closed* -%% receive frame -> ignore, *closed* -%% terminate_connection timeout -> *terminate* -%% handshake_timeout -> ignore, *closed* -%% heartbeat timeout -> *throw* -%% channel exit -> log error, *closed* -%% -%% -%% TODO: refactor the code so that the above is obvious - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(info/1 :: (pid()) -> [info()]). --spec(info/2 :: (pid(), [info_key()]) -> [info()]). - --endif. - -%%-------------------------------------------------------------------------- - -start_link() -> - {ok, proc_lib:spawn_link(?MODULE, init, [self()])}. - -init(Parent) -> - Deb = sys:debug_options([]), - receive - {go, Sock, SockTransform} -> - start_connection(Parent, Deb, Sock, SockTransform) - end. - -system_continue(Parent, Deb, State) -> - ?MODULE:mainloop(Parent, Deb, State). - -system_terminate(Reason, _Parent, _Deb, _State) -> - exit(Reason). - -system_code_change(Misc, _Module, _OldVsn, _Extra) -> - {ok, Misc}. - -info(Pid) -> - gen_server:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -setup_profiling() -> - Value = rabbit_misc:get_config(profiling_enabled, false), - case Value of - once -> - rabbit_log:info("Enabling profiling for this connection, and disabling for subsequent.~n"), - rabbit_misc:set_config(profiling_enabled, false), - fprof:trace(start); - true -> - rabbit_log:info("Enabling profiling for this connection.~n"), - fprof:trace(start); - false -> - ok - end, - Value. - -teardown_profiling(Value) -> - case Value of - false -> - ok; - _ -> - rabbit_log:info("Completing profiling for this connection.~n"), - fprof:trace(stop), - fprof:profile(), - fprof:analyse([{dest, []}, {cols, 100}]) - end. - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -socket_op(Sock, Fun) -> - case Fun(Sock) of - {ok, Res} -> Res; - {error, Reason} -> rabbit_log:error("error on TCP connection ~p:~p~n", - [self(), Reason]), - rabbit_log:info("closing TCP connection ~p~n", - [self()]), - exit(normal) - end. - -start_connection(Parent, Deb, Sock, SockTransform) -> - process_flag(trap_exit, true), - {PeerAddress, PeerPort} = socket_op(Sock, fun rabbit_net:peername/1), - PeerAddressS = inet_parse:ntoa(PeerAddress), - rabbit_log:info("starting TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - ClientSock = socket_op(Sock, SockTransform), - erlang:send_after(?HANDSHAKE_TIMEOUT * 1000, self(), - handshake_timeout), - ProfilingValue = setup_profiling(), - try - file_handle_cache:increment(), - mainloop(Parent, Deb, switch_callback( - #v1{sock = ClientSock, - connection = #connection{ - user = none, - timeout_sec = ?HANDSHAKE_TIMEOUT, - frame_max = ?FRAME_MIN_SIZE, - vhost = none, - client_properties = none}, - callback = uninitialized_callback, - recv_ref = none, - connection_state = pre_init}, - handshake, 8)) - catch - Ex -> (if Ex == connection_closed_abruptly -> - fun rabbit_log:warning/2; - true -> - fun rabbit_log:error/2 - end)("exception on TCP connection ~p from ~s:~p~n~p~n", - [self(), PeerAddressS, PeerPort, Ex]) - after - file_handle_cache:decrement(), - rabbit_log:info("closing TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - %% We don't close the socket explicitly. The reader is the - %% controlling process and hence its termination will close - %% the socket. Furthermore, gen_tcp:close/1 waits for pending - %% output to be sent, which results in unnecessary delays. - %% - %% gen_tcp:close(ClientSock), - teardown_profiling(ProfilingValue) - end, - done. - -mainloop(Parent, Deb, State = #v1{sock= Sock, recv_ref = Ref}) -> - %%?LOGDEBUG("Reader mainloop: ~p bytes available, need ~p~n", [HaveBytes, WaitUntilNBytes]), - receive - {inet_async, Sock, Ref, {ok, Data}} -> - {State1, Callback1, Length1} = - handle_input(State#v1.callback, Data, - State#v1{recv_ref = none}), - mainloop(Parent, Deb, - switch_callback(State1, Callback1, Length1)); - {inet_async, Sock, Ref, {error, closed}} -> - if State#v1.connection_state =:= closed -> - State; - true -> - throw(connection_closed_abruptly) - end; - {inet_async, Sock, Ref, {error, Reason}} -> - throw({inet_error, Reason}); - {'EXIT', Parent, Reason} -> - if State#v1.connection_state =:= running -> - send_exception(State, 0, - rabbit_misc:amqp_error(connection_forced, - "broker forced connection closure with reason '~w'", - [Reason], none)); - true -> ok - end, - %% this is what we are expected to do according to - %% http://www.erlang.org/doc/man/sys.html - %% - %% If we wanted to be *really* nice we should wait for a - %% while for clients to close the socket at their end, - %% just as we do in the ordinary error case. However, - %% since this termination is initiated by our parent it is - %% probably more important to exit quickly. - exit(Reason); - {channel_exit, _Chan, E = {writer, send_failed, _Error}} -> - throw(E); - {'EXIT', Pid, Reason} -> - mainloop(Parent, Deb, handle_dependent_exit(Pid, Reason, State)); - terminate_connection -> - State; - handshake_timeout -> - if State#v1.connection_state =:= running orelse - State#v1.connection_state =:= closing orelse - State#v1.connection_state =:= closed -> - mainloop(Parent, Deb, State); - true -> - throw({handshake_timeout, State#v1.callback}) - end; - timeout -> - throw({timeout, State#v1.connection_state}); - {'$gen_call', From, info} -> - gen_server:reply(From, infos(?INFO_KEYS, State)), - mainloop(Parent, Deb, State); - {'$gen_call', From, {info, Items}} -> - gen_server:reply(From, try {ok, infos(Items, State)} - catch Error -> {error, Error} - end), - mainloop(Parent, Deb, State); - {system, From, Request} -> - sys:handle_system_msg(Request, From, - Parent, ?MODULE, Deb, State); - Other -> - %% internal error -> something worth dying for - exit({unexpected_message, Other}) - end. - -switch_callback(OldState, NewCallback, Length) -> - Ref = inet_op(fun () -> rabbit_net:async_recv( - OldState#v1.sock, Length, infinity) end), - OldState#v1{callback = NewCallback, - recv_ref = Ref}. - -close_connection(State = #v1{connection = #connection{ - timeout_sec = TimeoutSec}}) -> - %% We terminate the connection after the specified interval, but - %% no later than ?CLOSING_TIMEOUT seconds. - TimeoutMillisec = - 1000 * if TimeoutSec > 0 andalso - TimeoutSec < ?CLOSING_TIMEOUT -> TimeoutSec; - true -> ?CLOSING_TIMEOUT - end, - erlang:send_after(TimeoutMillisec, self(), terminate_connection), - State#v1{connection_state = closed}. - -close_channel(Channel, State) -> - put({channel, Channel}, closing), - State. - -<<<<<<< local -handle_channel_exit(Channel, Reason, State) -> - handle_exception(State, Channel, Reason). - -handle_dependent_exit(Pid, Reason, - State = #v1{connection_state = closing}) -> - case channel_cleanup(Pid) of - undefined -> exit({abnormal_dependent_exit, Pid, Reason}); - Channel -> - case Reason of - normal -> ok; - _ -> log_channel_error(closing, Channel, Reason) - end, - maybe_close(State) - end; -======= ->>>>>>> other -handle_dependent_exit(Pid, normal, State) -> - erase({chpid, Pid}), - State; -handle_dependent_exit(Pid, Reason, State) -> - case channel_cleanup(Pid) of - undefined -> exit({abnormal_dependent_exit, Pid, Reason}); - Channel -> handle_exception(State, Channel, Reason) - end. - -channel_cleanup(Pid) -> - case get({chpid, Pid}) of - undefined -> undefined; - {channel, Channel} -> erase({channel, Channel}), - erase({chpid, Pid}), - Channel - end. - -all_channels() -> [Pid || {{chpid, Pid},_} <- get()]. - -terminate_channels() -> - NChannels = length([exit(Pid, normal) || Pid <- all_channels()]), - if NChannels > 0 -> - Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, - TimerRef = erlang:send_after(Timeout, self(), cancel_wait), - wait_for_channel_termination(NChannels, TimerRef); - true -> ok - end. - -wait_for_channel_termination(0, TimerRef) -> - case erlang:cancel_timer(TimerRef) of - false -> receive - cancel_wait -> ok - end; - _ -> ok - end; - -wait_for_channel_termination(N, TimerRef) -> - receive - {'EXIT', Pid, Reason} -> - case channel_cleanup(Pid) of - undefined -> - exit({abnormal_dependent_exit, Pid, Reason}); - Channel -> - case Reason of - normal -> ok; - _ -> - rabbit_log:error( - "connection ~p, channel ~p - error while terminating:~n~p~n", - [self(), Channel, Reason]) - end, - wait_for_channel_termination(N-1, TimerRef) - end; - cancel_wait -> - exit(channel_termination_timeout) - end. - -maybe_close(State) -> - case all_channels() of - [] -> ok = send_on_channel0( - State#v1.sock, #'connection.close_ok'{}), - close_connection(State); - _ -> State - end. - -handle_frame(Type, 0, Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - case analyze_frame(Type, Payload) of - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - _Other -> State - end; -handle_frame(_Type, _Channel, _Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_frame(Type, 0, Payload, State) -> - case analyze_frame(Type, Payload) of - error -> throw({unknown_frame, 0, Type, Payload}); - heartbeat -> State; - trace -> State; - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - Other -> throw({unexpected_frame_on_channel0, Other}) - end; -handle_frame(Type, Channel, Payload, State) -> - case analyze_frame(Type, Payload) of - error -> throw({unknown_frame, Channel, Type, Payload}); - heartbeat -> throw({unexpected_heartbeat_frame, Channel}); - trace -> throw({unexpected_trace_frame, Channel}); - AnalyzedFrame -> - %%?LOGDEBUG("Ch ~p Frame ~p~n", [Channel, AnalyzedFrame]), - case get({channel, Channel}) of - {chpid, ChPid} -> - case AnalyzedFrame of - {method, 'channel.close', _} -> - erase({channel, Channel}); - _ -> ok - end, - ok = rabbit_framing_channel:process(ChPid, AnalyzedFrame), - State; - closing -> - %% According to the spec, after sending a - %% channel.close we must ignore all frames except - %% channel.close_ok. - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - erase({channel, Channel}); - _ -> ok - end, - State; - undefined -> - case State#v1.connection_state of - running -> ok = send_to_new_channel( - Channel, AnalyzedFrame, State), - State; - Other -> throw({channel_frame_while_starting, - Channel, Other, AnalyzedFrame}) - end - end - end. - -analyze_frame(?FRAME_METHOD, <>) -> - {method, rabbit_framing:lookup_method_name({ClassId, MethodId}), MethodFields}; -analyze_frame(?FRAME_HEADER, <>) -> - {content_header, ClassId, Weight, BodySize, Properties}; -analyze_frame(?FRAME_BODY, Body) -> - {content_body, Body}; -analyze_frame(?FRAME_TRACE, _Body) -> - trace; -analyze_frame(?FRAME_HEARTBEAT, <<>>) -> - heartbeat; -analyze_frame(_Type, _Body) -> - error. - -handle_input(frame_header, <>, State) -> - %%?LOGDEBUG("Got frame header: ~p/~p/~p~n", [Type, Channel, PayloadSize]), - {State, {frame_payload, Type, Channel, PayloadSize}, PayloadSize + 1}; - -handle_input({frame_payload, Type, Channel, PayloadSize}, PayloadAndMarker, State) -> - case PayloadAndMarker of - <> -> - %%?LOGDEBUG("Frame completed: ~p/~p/~p~n", [Type, Channel, Payload]), - NewState = handle_frame(Type, Channel, Payload, State), - {NewState, frame_header, 7}; - _ -> - throw({bad_payload, PayloadAndMarker}) - end; - -handle_input(handshake, <<"AMQP",1,1,ProtocolMajor,ProtocolMinor>>, - State = #v1{sock = Sock, connection = Connection}) -> - case check_version({ProtocolMajor, ProtocolMinor}, - {?PROTOCOL_VERSION_MAJOR, ?PROTOCOL_VERSION_MINOR}) of - true -> - {ok, Product} = application:get_key(id), - {ok, Version} = application:get_key(vsn), - ok = send_on_channel0( - Sock, - #'connection.start'{ - version_major = ?PROTOCOL_VERSION_MAJOR, - version_minor = ?PROTOCOL_VERSION_MINOR, - server_properties = - [{list_to_binary(K), longstr, list_to_binary(V)} || - {K, V} <- - [{"product", Product}, - {"version", Version}, - {"platform", "Erlang/OTP"}, - {"copyright", ?COPYRIGHT_MESSAGE}, - {"information", ?INFORMATION_MESSAGE}]], - mechanisms = <<"PLAIN AMQPLAIN">>, - locales = <<"en_US">> }), - {State#v1{connection = Connection#connection{ - timeout_sec = ?NORMAL_TIMEOUT}, - connection_state = starting}, - frame_header, 7}; - false -> - throw({bad_version, ProtocolMajor, ProtocolMinor}) - end; - -handle_input(handshake, Other, #v1{sock = Sock}) -> - ok = inet_op(fun () -> rabbit_net:send( - Sock, <<"AMQP",1,1, - ?PROTOCOL_VERSION_MAJOR, - ?PROTOCOL_VERSION_MINOR>>) end), - throw({bad_header, Other}); - -handle_input(Callback, Data, _State) -> - throw({bad_input, Callback, Data}). - -%% the 0-8 spec, confusingly, defines the version as 8-0 -adjust_version({8,0}) -> {0,8}; -adjust_version(Version) -> Version. -check_version(ClientVersion, ServerVersion) -> - {ClientMajor, ClientMinor} = adjust_version(ClientVersion), - {ServerMajor, ServerMinor} = adjust_version(ServerVersion), - ClientMajor > ServerMajor - orelse - (ClientMajor == ServerMajor andalso - ClientMinor >= ServerMinor). - -%%-------------------------------------------------------------------------- - -handle_method0(MethodName, FieldsBin, State) -> - try - handle_method0(rabbit_framing:decode_method_fields( - MethodName, FieldsBin), - State) - catch exit:Reason -> - CompleteReason = case Reason of - #amqp_error{method = none} -> - Reason#amqp_error{method = MethodName}; - OtherReason -> OtherReason - end, - case State#v1.connection_state of - running -> send_exception(State, 0, CompleteReason); - Other -> throw({channel0_error, Other, CompleteReason}) - end - end. - -handle_method0(#'connection.start_ok'{mechanism = Mechanism, - response = Response, - client_properties = ClientProperties}, - State = #v1{connection_state = starting, - connection = Connection, - sock = Sock}) -> - User = rabbit_access_control:check_login(Mechanism, Response), - ok = send_on_channel0( - Sock, - #'connection.tune'{channel_max = 0, - %% set to zero once QPid fix their negotiation - frame_max = 131072, - heartbeat = 0}), - State#v1{connection_state = tuning, - connection = Connection#connection{ - user = User, - client_properties = ClientProperties}}; -handle_method0(#'connection.tune_ok'{channel_max = _ChannelMax, - frame_max = FrameMax, - heartbeat = ClientHeartbeat}, - State = #v1{connection_state = tuning, - connection = Connection, - sock = Sock}) -> - %% if we have a channel_max limit that the client wishes to - %% exceed, die as per spec. Not currently a problem, so we ignore - %% the client's channel_max parameter. - rabbit_heartbeat:start_heartbeat(Sock, ClientHeartbeat), - State#v1{connection_state = opening, - connection = Connection#connection{ - timeout_sec = ClientHeartbeat, - frame_max = FrameMax}}; -handle_method0(#'connection.open'{virtual_host = VHostPath, - insist = Insist}, - State = #v1{connection_state = opening, - connection = Connection = #connection{ - user = #user{username = Username}}, - sock = Sock}) -> - ok = rabbit_access_control:check_vhost_access(Username, VHostPath), - NewConnection = Connection#connection{vhost = VHostPath}, - KnownHosts = format_listeners(rabbit_networking:active_listeners()), - Redirects = compute_redirects(Insist), - if Redirects == [] -> - ok = send_on_channel0( - Sock, - #'connection.open_ok'{known_hosts = KnownHosts}), - State#v1{connection_state = running, - connection = NewConnection}; - true -> - %% FIXME: 'host' is supposed to only contain one - %% address; but which one do we pick? This is - %% really a problem with the spec. - Host = format_listeners(Redirects), - rabbit_log:info("connection ~p redirecting to ~p~n", - [self(), Host]), - ok = send_on_channel0( - Sock, - #'connection.redirect'{host = Host, - known_hosts = KnownHosts}), - close_connection(State#v1{connection = NewConnection}) - end; -handle_method0(#'connection.close'{}, - State = #v1{connection_state = running}) -> - lists:foreach(fun rabbit_framing_channel:shutdown/1, all_channels()), - maybe_close(State#v1{connection_state = closing}); -handle_method0(#'connection.close_ok'{}, - State = #v1{connection_state = closed}) -> - self() ! terminate_connection, - State; -handle_method0(_Method, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_method0(_Method, #v1{connection_state = S}) -> - rabbit_misc:protocol_error( - channel_error, "unexpected method in connection state ~w", [S]). - -send_on_channel0(Sock, Method) -> - ok = rabbit_writer:internal_send_command(Sock, 0, Method). - -format_listeners(Listeners) -> - list_to_binary( - rabbit_misc:intersperse( - $,, - [io_lib:format("~s:~w", [Host, Port]) || - #listener{host = Host, port = Port} <- Listeners])). - -compute_redirects(true) -> []; -compute_redirects(false) -> - Node = node(), - LNode = rabbit_load:pick(), - if Node == LNode -> []; - true -> rabbit_networking:node_listeners(LNode) - end. - -%%-------------------------------------------------------------------------- - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, #v1{}) -> - self(); -i(address, #v1{sock = Sock}) -> - {ok, {A, _}} = rabbit_net:sockname(Sock), - A; -i(port, #v1{sock = Sock}) -> - {ok, {_, P}} = rabbit_net:sockname(Sock), - P; -i(peer_address, #v1{sock = Sock}) -> - {ok, {A, _}} = rabbit_net:peername(Sock), - A; -i(peer_port, #v1{sock = Sock}) -> - {ok, {_, P}} = rabbit_net:peername(Sock), - P; -i(SockStat, #v1{sock = Sock}) when SockStat =:= recv_oct; - SockStat =:= recv_cnt; - SockStat =:= send_oct; - SockStat =:= send_cnt; - SockStat =:= send_pend -> - case rabbit_net:getstat(Sock, [SockStat]) of - {ok, [{SockStat, StatVal}]} -> StatVal; - {error, einval} -> undefined; - {error, Error} -> throw({cannot_get_socket_stats, Error}) - end; -i(state, #v1{connection_state = S}) -> - S; -i(channels, #v1{}) -> - length(all_channels()); -i(user, #v1{connection = #connection{user = #user{username = Username}}}) -> - Username; -i(user, #v1{connection = #connection{user = none}}) -> - ''; -i(vhost, #v1{connection = #connection{vhost = VHost}}) -> - VHost; -i(timeout, #v1{connection = #connection{timeout_sec = Timeout}}) -> - Timeout; -i(frame_max, #v1{connection = #connection{frame_max = FrameMax}}) -> - FrameMax; -i(client_properties, #v1{connection = #connection{ - client_properties = ClientProperties}}) -> - ClientProperties; -i(Item, #v1{}) -> - throw({bad_argument, Item}). - -%%-------------------------------------------------------------------------- - -send_to_new_channel(Channel, AnalyzedFrame, State) -> - #v1{sock = Sock, connection = #connection{ - frame_max = FrameMax, - user = #user{username = Username}, - vhost = VHost}} = State, - WriterPid = rabbit_writer:start(Sock, Channel, FrameMax), - ChPid = rabbit_framing_channel:start_link( - fun rabbit_channel:start_link/5, - [Channel, self(), WriterPid, Username, VHost]), - put({channel, Channel}, {chpid, ChPid}), - put({chpid, ChPid}, {channel, Channel}), - ok = rabbit_framing_channel:process(ChPid, AnalyzedFrame). - -log_channel_error(ConnectionState, Channel, Reason) -> - rabbit_log:error("connection ~p (~p), channel ~p - error:~n~p~n", - [self(), ConnectionState, Channel, Reason]). - -handle_exception(State = #v1{connection_state = closed}, Channel, Reason) -> - log_channel_error(closed, Channel, Reason), - State; -handle_exception(State = #v1{connection_state = CS}, Channel, Reason) -> - log_channel_error(CS, Channel, Reason), - send_exception(State, Channel, Reason). - -send_exception(State, Channel, Reason) -> - {ShouldClose, CloseChannel, CloseMethod} = map_exception(Channel, Reason), - NewState = case ShouldClose of - true -> terminate_channels(), - close_connection(State); - false -> close_channel(Channel, State) - end, - ok = rabbit_writer:internal_send_command( - NewState#v1.sock, CloseChannel, CloseMethod), - NewState. - -map_exception(Channel, Reason) -> - {SuggestedClose, ReplyCode, ReplyText, FailedMethod} = - lookup_amqp_exception(Reason), - ShouldClose = SuggestedClose or (Channel == 0), - {ClassId, MethodId} = case FailedMethod of - {_, _} -> FailedMethod; - none -> {0, 0}; - _ -> rabbit_framing:method_id(FailedMethod) - end, - {CloseChannel, CloseMethod} = - case ShouldClose of - true -> {0, #'connection.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}}; - false -> {Channel, #'channel.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}} - end, - {ShouldClose, CloseChannel, CloseMethod}. - -%% FIXME: this clause can go when we move to AMQP spec >=8.1 -lookup_amqp_exception(#amqp_error{name = precondition_failed, - explanation = Expl, - method = Method}) -> - ExplBin = amqp_exception_explanation(<<"PRECONDITION_FAILED">>, Expl), - {false, 406, ExplBin, Method}; -lookup_amqp_exception(#amqp_error{name = Name, - explanation = Expl, - method = Method}) -> - {ShouldClose, Code, Text} = rabbit_framing:lookup_amqp_exception(Name), - ExplBin = amqp_exception_explanation(Text, Expl), - {ShouldClose, Code, ExplBin, Method}; -lookup_amqp_exception(Other) -> - rabbit_log:warning("Non-AMQP exit reason '~p'~n", [Other]), - {ShouldClose, Code, Text} = - rabbit_framing:lookup_amqp_exception(internal_error), - {ShouldClose, Code, Text, none}. - -amqp_exception_explanation(Text, Expl) -> - ExplBin = list_to_binary(Expl), - CompleteTextBin = <>, - if size(CompleteTextBin) > 255 -> <>; - true -> CompleteTextBin - end. diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl deleted file mode 100644 index fda2942b..00000000 --- a/src/rabbit_router.erl +++ /dev/null @@ -1,227 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_router). --include_lib("stdlib/include/qlc.hrl"). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/0, - deliver/2, - match_bindings/2, - match_routing_key/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). - -%% cross-node routing optimisation is disabled because of bug 19758. --define(BUG19758, true). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(deliver/5 :: ([pid()], bool(), bool(), maybe(txn()), message()) -> - {'ok', [pid()]} | {'error', 'unroutable' | 'not_delivered'}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - --ifdef(BUG19758). - -deliver(QPids, Mandatory, Immediate, Txn, Message) -> - check_delivery(Mandatory, Immediate, - run_bindings(QPids, Mandatory, Immediate, Txn, Message)). - --else. - -deliver(QPids, Mandatory, Immediate, Txn, Message) -> - %% we reduce inter-node traffic by grouping the qpids by node and - %% only delivering one copy of the message to each node involved, - %% which then in turn delivers it to its queues. - deliver_per_node( - dict:to_list( - lists:foldl( - fun (QPid, D) -> - dict:update(node(QPid), - fun (QPids1) -> [QPid | QPids1] end, - [QPid], D) - end, - dict:new(), QPids)), - Mandatory, Immediate, Txn, Message). - -deliver_per_node([{Node, QPids}], Mandatory, Immediate, - Txn, Message) - when Node == node() -> - %% optimisation - check_delivery(Mandatory, Immediate, - run_bindings(QPids, Mandatory, Immediate, Txn, Message)); -deliver_per_node(NodeQPids, Mandatory = false, Immediate = false, - Txn, Message) -> - %% optimisation: when Mandatory = false and Immediate = false, - %% rabbit_amqqueue:deliver in run_bindings below will deliver the - %% message to the queue process asynchronously, and return true, - %% which means all the QPids will always be returned. It is - %% therefore safe to use a fire-and-forget cast here and return - %% the QPids - the semantics is preserved. This scales much better - %% than the non-immediate case below. - {ok, lists:flatmap( - fun ({Node, QPids}) -> - gen_server2:cast( - {?SERVER, Node}, - {deliver, QPids, Mandatory, Immediate, Txn, Message}), - QPids - end, - NodeQPids)}; -deliver_per_node(NodeQPids, Mandatory, Immediate, - Txn, Message) -> - R = rabbit_misc:upmap( - fun ({Node, QPids}) -> - try gen_server2:call( - {?SERVER, Node}, - {deliver, QPids, Mandatory, Immediate, Txn, Message}, - infinity) - catch - _Class:_Reason -> - %% TODO: figure out what to log (and do!) here - {false, []} - end - end, - NodeQPids), - {Routed, Handled} = - lists:foldl(fun ({Routed, Handled}, {RoutedAcc, HandledAcc}) -> - {Routed or RoutedAcc, - %% we do the concatenation below, which - %% should be faster - [Handled | HandledAcc]} - end, - {false, []}, - R), - check_delivery(Mandatory, Immediate, {Routed, lists:append(Handled)}). - --endif. - -%% TODO: Maybe this should be handled by a cursor instead. -%% TODO: This causes a full scan for each entry with the same exchange -match_bindings(Name, Match) -> - Query = qlc:q([QName || #route{binding = Binding = #binding{ - exchange_name = ExchangeName, - queue_name = QName}} <- - mnesia:table(rabbit_route), - ExchangeName == Name, - Match(Binding)]), - lookup_qpids( - try - mnesia:async_dirty(fun qlc:e/1, [Query]) - catch exit:{aborted, {badarg, _}} -> - %% work around OTP-7025, which was fixed in R12B-1, by - %% falling back on a less efficient method - [QName || #route{binding = Binding = #binding{ - queue_name = QName}} <- - mnesia:dirty_match_object( - rabbit_route, - #route{binding = #binding{exchange_name = Name, - _ = '_'}}), - Match(Binding)] - end). - -match_routing_key(Name, RoutingKey) -> - MatchHead = #route{binding = #binding{exchange_name = Name, - queue_name = '$1', - key = RoutingKey, - _ = '_'}}, - lookup_qpids(mnesia:dirty_select(rabbit_route, [{MatchHead, [], ['$1']}])). - -lookup_qpids(Queues) -> - sets:fold( - fun(Key, Acc) -> - case mnesia:dirty_read({rabbit_queue, Key}) of - [#amqqueue{pid = QPid}] -> [QPid | Acc]; - [] -> Acc - end - end, [], sets:from_list(Queues)). - -%%-------------------------------------------------------------------- - -init([]) -> - {ok, no_state}. - -handle_call({deliver, QPids, Mandatory, Immediate, Txn, Message}, - From, State) -> - spawn( - fun () -> - R = run_bindings(QPids, Mandatory, Immediate, Txn, Message), - gen_server2:reply(From, R) - end), - {noreply, State}. - -handle_cast({deliver, QPids, Mandatory, Immediate, Txn, Message}, - State) -> - %% in order to preserve message ordering we must not spawn here - run_bindings(QPids, Mandatory, Immediate, Txn, Message), - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -run_bindings(QPids, IsMandatory, IsImmediate, Txn, Message) -> - lists:foldl( - fun (QPid, {Routed, Handled}) -> - case catch rabbit_amqqueue:deliver(IsMandatory, IsImmediate, - Txn, Message, QPid) of - true -> {true, [QPid | Handled]}; - false -> {true, Handled}; - {'EXIT', _Reason} -> {Routed, Handled} - end - end, - {false, []}, - QPids). - -%% check_delivery(Mandatory, Immediate, {WasRouted, QPids}) -check_delivery(true, _ , {false, []}) -> {error, unroutable}; -check_delivery(_ , true, {_ , []}) -> {error, not_delivered}; -check_delivery(_ , _ , {_ , Qs}) -> {ok, Qs}. diff --git a/src/rabbit_sasl_report_file_h.erl b/src/rabbit_sasl_report_file_h.erl deleted file mode 100644 index 9e4c9c8a..00000000 --- a/src/rabbit_sasl_report_file_h.erl +++ /dev/null @@ -1,95 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_sasl_report_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, code_change/3]). - -%% rabbit_sasl_report_file_h is a wrapper around the sasl_report_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers and performing -%% log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " ++ - "sasl log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without -%% doing any log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init({File, sasl_error_logger_type()}). - -handle_event(Event, State) -> - sasl_report_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - sasl_report_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - sasl_report_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - sasl_report_file_h:terminate(Reason, State). - -code_change(_OldVsn, State, _Extra) -> - %% There is no sasl_report_file_h:code_change/3 - {ok, State}. - -%%---------------------------------------------------------------------- - -sasl_error_logger_type() -> - case application:get_env(sasl, errlog_type) of - {ok, error} -> error; - {ok, progress} -> progress; - {ok, all} -> all; - {ok, Bad} -> throw({error, {wrong_errlog_type, Bad}}); - _ -> all - end. diff --git a/src/rabbit_sup.erl b/src/rabbit_sup.erl deleted file mode 100644 index 2132e743..00000000 --- a/src/rabbit_sup.erl +++ /dev/null @@ -1,56 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_sup). - --behaviour(supervisor). - --export([start_link/0, start_child/1, start_child/2]). - --export([init/1]). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Mod) -> - start_child(Mod, []). - -start_child(Mod, Args) -> - {ok, _} = supervisor:start_child( - ?SERVER, {Mod, {Mod, start_link, Args}, - %% 16#ffffffff is the highest value allowed - transient, 16#ffffffff, worker, [Mod]}), - ok. - -init([]) -> - {ok, {{one_for_one, 10, 10}, []}}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl deleted file mode 100644 index f1a6f10f..00000000 --- a/src/rabbit_tests.erl +++ /dev/null @@ -1,1369 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_tests). - --compile(export_all). - --export([all_tests/0, test_parsing/0, test_disk_queue/0]). - -%% Exported so the hook mechanism can call back --export([handle_hook/3, bad_handle_hook/3, extra_arg_hook/5]). - --import(lists). - --include("rabbit.hrl"). --include_lib("kernel/include/file.hrl"). - -test_content_prop_roundtrip(Datum, Binary) -> - Types = [element(1, E) || E <- Datum], - Values = [element(2, E) || E <- Datum], - Values = rabbit_binary_parser:parse_properties(Types, Binary), %% assertion - Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion - -all_tests() -> - passed = test_disk_queue(), - passed = test_priority_queue(), - passed = test_unfold(), - passed = test_parsing(), - passed = test_topic_matching(), - passed = test_log_management(), - passed = test_app_management(), - passed = test_log_management_during_startup(), - passed = test_cluster_management(), - passed = test_user_management(), - passed = test_server_status(), - passed = test_hooks(), - passed. - -test_priority_queue() -> - - false = priority_queue:is_queue(not_a_queue), - - %% empty Q - Q = priority_queue:new(), - {true, true, 0, [], []} = test_priority_queue(Q), - - %% 1-4 element no-priority Q - true = lists:all(fun (X) -> X =:= passed end, - lists:map(fun test_simple_n_element_queue/1, - lists:seq(1, 4))), - - %% 1-element priority Q - Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), - - %% 2-element same-priority Q - Q2 = priority_queue:in(bar, 1, Q1), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q2), - - %% 2-element different-priority Q - Q3 = priority_queue:in(bar, 2, Q1), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q3), - - %% 1-element negative priority Q - Q4 = priority_queue:in(foo, -1, priority_queue:new()), - {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - - %% merge 2 * 2-element multi-different-priority Qs - Q11 = priority_queue:join(Q6, Q5), - {true, false, 4, [{1, bar}, {0, foo}, {0, foo}, {0, bar}], - [bar, foo, foo, bar]} = test_priority_queue(Q11), - - %% and the other way around - Q12 = priority_queue:join(Q5, Q6), - {true, false, 4, [{1, bar}, {0, foo}, {0, bar}, {0, foo}], - [bar, foo, bar, foo]} = test_priority_queue(Q12), - - %% merge with negative priorities - Q13 = priority_queue:join(Q4, Q5), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q13), - - %% and the other way around - Q14 = priority_queue:join(Q5, Q4), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q14), - - %% joins with empty queues: - Q1 = priority_queue:join(Q, Q1), - Q1 = priority_queue:join(Q1, Q), - - %% insert with priority into non-empty zero-priority queue - Q15 = priority_queue:in(baz, 1, Q5), - {true, false, 3, [{1, baz}, {0, foo}, {0, bar}], [baz, foo, bar]} = - test_priority_queue(Q15), - - passed. - -priority_queue_in_all(Q, L) -> - lists:foldl(fun (X, Acc) -> priority_queue:in(X, Acc) end, Q, L). - -priority_queue_out_all(Q) -> - case priority_queue:out(Q) of - {empty, _} -> []; - {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] - end. -test_priority_queue(Q) -> - {priority_queue:is_queue(Q), - priority_queue:is_empty(Q), - priority_queue:len(Q), - priority_queue:to_list(Q), - priority_queue_out_all(Q)}. - -test_simple_n_element_queue(N) -> - Items = lists:seq(1, N), - Q = priority_queue_in_all(priority_queue:new(), Items), - ToListRes = [{0, X} || X <- Items], - {true, false, N, ToListRes, Items} = test_priority_queue(Q), - passed. - -test_unfold() -> - {[], test} = rabbit_misc:unfold(fun (_V) -> false end, test), - List = lists:seq(2,20,2), - {List, 0} = rabbit_misc:unfold(fun (0) -> false; - (N) -> {true, N*2, N-1} - end, 10), - passed. - -test_parsing() -> - passed = test_content_properties(), - passed = test_field_values(), - passed. - -test_content_properties() -> - test_content_prop_roundtrip([], <<0, 0>>), - test_content_prop_roundtrip([{bit, true}, {bit, false}, {bit, true}, {bit, false}], - <<16#A0, 0>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {bit, true}, {octet, undefined}, - {bit, true}], - <<16#E8,0,123>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {octet, 123}, {bit, true}], - <<16#F0,0,123,123>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, <<"hi">>}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#F8,0,2,"hi",16#D4,16#31>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, undefined}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#B8,0,16#D4,16#31>>), - test_content_prop_roundtrip([{table, [{<<"a signedint">>, signedint, 12345678}, - {<<"a longstr">>, longstr, <<"yes please">>}, - {<<"a decimal">>, decimal, {123, 12345678}}, - {<<"a timestamp">>, timestamp, 123456789012345}, - {<<"a nested table">>, table, - [{<<"one">>, signedint, 1}, - {<<"two">>, signedint, 2}]}]}], - << - % property-flags - 16#8000:16, - - % property-list: - - % table - 117:32, % table length in bytes - - 11,"a signedint", % name - "I",12345678:32, % type and value - - 9,"a longstr", - "S",10:32,"yes please", - - 9,"a decimal", - "D",123,12345678:32, - - 11,"a timestamp", - "T", 123456789012345:64, - - 14,"a nested table", - "F", - 18:32, - - 3,"one", - "I",1:32, - - 3,"two", - "I",2:32 >>), - case catch rabbit_binary_parser:parse_properties([bit, bit, bit, bit], <<16#A0,0,1>>) of - {'EXIT', content_properties_binary_overflow} -> passed; - V -> exit({got_success_but_expected_failure, V}) - end. - -test_field_values() -> - %% FIXME this does not test inexact numbers (double and float) yet, - %% because they won't pass the equality assertions - test_content_prop_roundtrip( - [{table, [{<<"longstr">>, longstr, <<"Here is a long string">>}, - {<<"signedint">>, signedint, 12345}, - {<<"decimal">>, decimal, {3, 123456}}, - {<<"timestamp">>, timestamp, 109876543209876}, - {<<"table">>, table, [{<<"one">>, signedint, 54321}, - {<<"two">>, longstr, <<"A long string">>}]}, - {<<"byte">>, byte, 255}, - {<<"long">>, long, 1234567890}, - {<<"short">>, short, 655}, - {<<"bool">>, bool, true}, - {<<"binary">>, binary, <<"a binary string">>}, - {<<"void">>, void, undefined}, - {<<"array">>, array, [{signedint, 54321}, - {longstr, <<"A long string">>}]} - - ]}], - << - % property-flags - 16#8000:16, - % table length in bytes - 228:32, - - 7,"longstr", "S", 21:32, "Here is a long string", % = 34 - 9,"signedint", "I", 12345:32/signed, % + 15 = 49 - 7,"decimal", "D", 3, 123456:32, % + 14 = 63 - 9,"timestamp", "T", 109876543209876:64, % + 19 = 82 - 5,"table", "F", 31:32, % length of table % + 11 = 93 - 3,"one", "I", 54321:32, % + 9 = 102 - 3,"two", "S", 13:32, "A long string",% + 22 = 124 - 4,"byte", "b", 255:8, % + 7 = 131 - 4,"long", "l", 1234567890:64, % + 14 = 145 - 5,"short", "s", 655:16, % + 9 = 154 - 4,"bool", "t", 1, % + 7 = 161 - 6,"binary", "x", 15:32, "a binary string", % + 27 = 188 - 4,"void", "V", % + 6 = 194 - 5,"array", "A", 23:32, % + 11 = 205 - "I", 54321:32, % + 5 = 210 - "S", 13:32, "A long string" % + 18 = 228 - >>), - passed. - -test_topic_match(P, R) -> - test_topic_match(P, R, true). - -test_topic_match(P, R, Expected) -> - case rabbit_exchange_type_topic:topic_matches(list_to_binary(P), list_to_binary(R)) of - Expected -> - passed; - _ -> - {topic_match_failure, P, R} - end. - -test_topic_matching() -> - passed = test_topic_match("#", "test.test"), - passed = test_topic_match("#", ""), - passed = test_topic_match("#.T.R", "T.T.R"), - passed = test_topic_match("#.T.R", "T.R.T.R"), - passed = test_topic_match("#.Y.Z", "X.Y.Z.X.Y.Z"), - passed = test_topic_match("#.test", "test"), - passed = test_topic_match("#.test", "test.test"), - passed = test_topic_match("#.test", "ignored.test"), - passed = test_topic_match("#.test", "more.ignored.test"), - passed = test_topic_match("#.test", "notmatched", false), - passed = test_topic_match("#.z", "one.two.three.four", false), - passed. - -test_app_management() -> - %% starting, stopping, status - ok = control_action(stop_app, []), - ok = control_action(stop_app, []), - ok = control_action(status, []), - ok = control_action(start_app, []), - ok = control_action(start_app, []), - ok = control_action(status, []), - passed. - -test_log_management() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - Suffix = ".1", - - %% prepare basic logs - file:delete([MainLog, Suffix]), - file:delete([SaslLog, Suffix]), - - %% simple logs reopening - ok = control_action(rotate_logs, []), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% simple log rotation - ok = control_action(rotate_logs, [Suffix]), - [true, true] = non_empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% reopening logs with log rotation performed first - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = file:rename(MainLog, [MainLog, Suffix]), - ok = file:rename(SaslLog, [SaslLog, Suffix]), - ok = test_logs_working([MainLog, Suffix], [SaslLog, Suffix]), - ok = control_action(rotate_logs, []), - ok = test_logs_working(MainLog, SaslLog), - - %% log rotation on empty file - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = control_action(rotate_logs, [Suffix]), - [true, true] = empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - - %% original main log file is not writable - ok = make_files_non_writable([MainLog]), - {error, {cannot_rotate_main_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([MainLog], Suffix), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}]), - - %% original sasl log file is not writable - ok = make_files_non_writable([SaslLog]), - {error, {cannot_rotate_sasl_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([SaslLog], Suffix), - ok = add_log_handlers([{rabbit_sasl_report_file_h, SaslLog}]), - - %% logs with suffix are not writable - ok = control_action(rotate_logs, [Suffix]), - ok = make_files_non_writable([[MainLog, Suffix], [SaslLog, Suffix]]), - ok = control_action(rotate_logs, [Suffix]), - ok = test_logs_working(MainLog, SaslLog), - - %% original log files are not writable - ok = make_files_non_writable([MainLog, SaslLog]), - {error, {{cannot_rotate_main_logs, _}, - {cannot_rotate_sasl_logs, _}}} = control_action(rotate_logs, []), - - %% logging directed to tty (handlers were removed in last test) - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = application:set_env(kernel, error_logger, tty), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% rotate logs when logging is turned off - ok = application:set_env(sasl, sasl_error_logger, false), - ok = application:set_env(kernel, error_logger, silent), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% cleanup - ok = application:set_env(sasl, sasl_error_logger, {file, SaslLog}), - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}, - {rabbit_sasl_report_file_h, SaslLog}]), - passed. - -test_log_management_during_startup() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - - %% start application with simple tty logging - ok = control_action(stop_app, []), - ok = application:set_env(kernel, error_logger, tty), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = add_log_handlers([{error_logger_tty_h, []}, - {sasl_report_tty_h, []}]), - ok = control_action(start_app, []), - - %% start application with tty logging and - %% proper handlers not installed - ok = control_action(stop_app, []), - ok = error_logger:tty(false), - ok = delete_log_handlers([sasl_report_tty_h]), - ok = case catch control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_tty_no_handlers_test}); - {error, {cannot_log_to_tty, _, _}} -> ok - end, - - %% fix sasl logging - ok = application:set_env(sasl, sasl_error_logger, - {file, SaslLog}), - - %% start application with logging to non-existing directory - TmpLog = "/tmp/rabbit-tests/test.log", - delete_file(TmpLog), - ok = application:set_env(kernel, error_logger, {file, TmpLog}), - - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = control_action(start_app, []), - - %% start application with logging to directory with no - %% write permissions - TmpDir = "/tmp/rabbit-tests", - ok = set_permissions(TmpDir, 8#00400), - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_no_write_permission_dir_test}); - {error, {cannot_log_to_file, _, _}} -> ok - end, - - %% start application with logging to a subdirectory which - %% parent directory has no write permissions - TmpTestDir = "/tmp/rabbit-tests/no-permission/test/log", - ok = application:set_env(kernel, error_logger, {file, TmpTestDir}), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotatation_parent_dirs_test}); - {error, {cannot_log_to_file, _, - {error, {cannot_create_parent_dirs, _, eacces}}}} -> ok - end, - ok = set_permissions(TmpDir, 8#00700), - ok = set_permissions(TmpLog, 8#00600), - ok = delete_file(TmpLog), - ok = file:del_dir(TmpDir), - - %% start application with standard error_logger_file_h - %% handler not installed - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% start application with standard sasl handler not installed - %% and rabbit main log handler installed correctly - ok = delete_log_handlers([rabbit_sasl_report_file_h]), - ok = control_action(start_app, []), - passed. - -test_cluster_management() -> - - %% 'cluster' and 'reset' should only work if the app is stopped - {error, _} = control_action(cluster, []), - {error, _} = control_action(reset, []), - {error, _} = control_action(force_reset, []), - - ok = control_action(stop_app, []), - - %% various ways of creating a standalone node - NodeS = atom_to_list(node()), - ClusteringSequence = [[], - [NodeS], - ["invalid@invalid", NodeS], - [NodeS, "invalid@invalid"]], - - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(cluster, Arg), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(cluster, Arg), - ok - end, - ClusteringSequence), - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - - %% convert a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% join a non-existing cluster as a ram node - ok = control_action(reset, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - SecondaryNode = rabbit_misc:makenode("hare"), - case net_adm:ping(SecondaryNode) of - pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", - [SecondaryNode]) - end, - - ok = control_action(start_app, []), - passed. - -test_cluster_management2(SecondaryNode) -> - NodeS = atom_to_list(node()), - SecondaryNodeS = atom_to_list(SecondaryNode), - - %% make a disk node - ok = control_action(reset, []), - ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - - %% join cluster as a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS, "invalid1@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% change cluster config while remaining in same cluster - ok = control_action(cluster, ["invalid2@invalid", SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join non-existing cluster as a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), - %% turn ram node into disk node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% convert a disk node into a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% turn a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% NB: this will log an inconsistent_database error, which is harmless - true = disconnect_node(SecondaryNode), - pong = net_adm:ping(SecondaryNode), - - %% leaving a cluster as a ram node - ok = control_action(reset, []), - %% ...and as a disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(reset, []), - - %% attempt to leave cluster when no other node is alive - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, SecondaryNode, []), - ok = control_action(stop_app, []), - {error, {no_running_cluster_nodes, _, _}} = - control_action(reset, []), - - %% leave system clustered, with the secondary node as a ram node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(force_reset, SecondaryNode, []), - ok = control_action(cluster, SecondaryNode, [NodeS]), - ok = control_action(start_app, SecondaryNode, []), - - passed. - -test_user_management() -> - - %% lots if stuff that should fail - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(change_password, ["foo", "baz"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - {error, {no_such_user, _}} = - control_action(map_user_vhost, ["foo", "/"]), - {error, {no_such_user, _}} = - control_action(unmap_user_vhost, ["foo", "/"]), - {error, {no_such_user, _}} = - control_action(list_user_vhosts, ["foo"]), - {error, {no_such_vhost, _}} = - control_action(map_user_vhost, ["guest", "/testhost"]), - {error, {no_such_vhost, _}} = - control_action(unmap_user_vhost, ["guest", "/testhost"]), - {error, {no_such_vhost, _}} = - control_action(list_vhost_users, ["/testhost"]), - %% user creation - ok = control_action(add_user, ["foo", "bar"]), - {error, {user_already_exists, _}} = - control_action(add_user, ["foo", "bar"]), - ok = control_action(change_password, ["foo", "baz"]), - ok = control_action(list_users, []), - - %% vhost creation - ok = control_action(add_vhost, ["/testhost"]), - {error, {vhost_already_exists, _}} = - control_action(add_vhost, ["/testhost"]), - ok = control_action(list_vhosts, []), - - %% user/vhost mapping - ok = control_action(map_user_vhost, ["foo", "/testhost"]), - ok = control_action(map_user_vhost, ["foo", "/testhost"]), - ok = control_action(list_user_vhosts, ["foo"]), - - %% user/vhost unmapping - ok = control_action(unmap_user_vhost, ["foo", "/testhost"]), - ok = control_action(unmap_user_vhost, ["foo", "/testhost"]), - - %% vhost deletion - ok = control_action(delete_vhost, ["/testhost"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - - %% deleting a populated vhost - ok = control_action(add_vhost, ["/testhost"]), - ok = control_action(map_user_vhost, ["foo", "/testhost"]), - ok = control_action(delete_vhost, ["/testhost"]), - - %% user deletion - ok = control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - - passed. - -test_server_status() -> - - %% create a queue so we have something to list - Q = #amqqueue{} = rabbit_amqqueue:declare( - rabbit_misc:r(<<"/">>, queue, <<"foo">>), - false, false, []), - - %% list queues - ok = info_action( - list_queues, - [name, durable, auto_delete, arguments, pid, - messages_ready, messages_unacknowledged, messages_uncommitted, - messages, acks_uncommitted, consumers, transactions, memory], - true), - - %% list exchanges - ok = info_action( - list_exchanges, - [name, type, durable, auto_delete, arguments], - true), - - %% list bindings - ok = control_action(list_bindings, []), - - %% cleanup - {ok, _} = rabbit_amqqueue:delete(Q, false, false), - - %% list connections - [#listener{host = H, port = P} | _] = - [L || L = #listener{node = N} <- rabbit_networking:active_listeners(), - N =:= node()], - - {ok, C} = gen_tcp:connect(H, P, []), - timer:sleep(100), - ok = info_action( - list_connections, - [pid, address, port, peer_address, peer_port, state, - channels, user, vhost, timeout, frame_max, - recv_oct, recv_cnt, send_oct, send_cnt, send_pend], - false), - ok = gen_tcp:close(C), - - passed. - -test_hooks() -> - %% Firing of hooks calls all hooks in an isolated manner - rabbit_hooks:subscribe(test_hook, test, {rabbit_tests, handle_hook, []}), - rabbit_hooks:subscribe(test_hook, test2, {rabbit_tests, handle_hook, []}), - rabbit_hooks:subscribe(test_hook2, test2, {rabbit_tests, handle_hook, []}), - rabbit_hooks:trigger(test_hook, [arg1, arg2]), - [arg1, arg2] = get(test_hook_test_fired), - [arg1, arg2] = get(test_hook_test2_fired), - undefined = get(test_hook2_test2_fired), - - %% Hook Deletion works - put(test_hook_test_fired, undefined), - put(test_hook_test2_fired, undefined), - rabbit_hooks:unsubscribe(test_hook, test), - rabbit_hooks:trigger(test_hook, [arg3, arg4]), - undefined = get(test_hook_test_fired), - [arg3, arg4] = get(test_hook_test2_fired), - undefined = get(test_hook2_test2_fired), - - %% Catches exceptions from bad hooks - rabbit_hooks:subscribe(test_hook3, test, {rabbit_tests, bad_handle_hook, []}), - ok = rabbit_hooks:trigger(test_hook3, []), - - %% Passing extra arguments to hooks - rabbit_hooks:subscribe(arg_hook, test, {rabbit_tests, extra_arg_hook, [1, 3]}), - rabbit_hooks:trigger(arg_hook, [arg1, arg2]), - {[arg1, arg2], 1, 3} = get(arg_hook_test_fired), - - %% Invoking Pids - Remote = fun() -> - receive - {rabbitmq_hook,[remote_test,test,[],Target]} -> - Target ! invoked - end - end, - P = spawn(Remote), - rabbit_hooks:subscribe(remote_test, test, {rabbit_hooks, notify_remote, [P, [self()]]}), - rabbit_hooks:trigger(remote_test, []), - receive - invoked -> ok - after 100 -> - io:format("Remote hook not invoked"), - throw(timeout) - end, - passed. - -%--------------------------------------------------------------------- - -control_action(Command, Args) -> control_action(Command, node(), Args). - -control_action(Command, Node, Args) -> - case catch rabbit_control:action( - Command, Node, Args, - fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end) of - ok -> - io:format("done.~n"), - ok; - Other -> - io:format("failed.~n"), - Other - end. - -info_action(Command, Args, CheckVHost) -> - ok = control_action(Command, []), - if CheckVHost -> ok = control_action(Command, ["-p", "/"]); - true -> ok - end, - ok = control_action(Command, lists:map(fun atom_to_list/1, Args)), - {bad_argument, dummy} = control_action(Command, ["dummy"]), - ok. - -empty_files(Files) -> - [case file:read_file_info(File) of - {ok, FInfo} -> FInfo#file_info.size == 0; - Error -> Error - end || File <- Files]. - -non_empty_files(Files) -> - [case EmptyFile of - {error, Reason} -> {error, Reason}; - _ -> not(EmptyFile) - end || EmptyFile <- empty_files(Files)]. - -test_logs_working(MainLogFile, SaslLogFile) -> - ok = rabbit_log:error("foo bar"), - ok = error_logger:error_report(crash_report, [foo, bar]), - %% give the error loggers some time to catch up - timer:sleep(50), - [true, true] = non_empty_files([MainLogFile, SaslLogFile]), - ok. - -set_permissions(Path, Mode) -> - case file:read_file_info(Path) of - {ok, FInfo} -> file:write_file_info( - Path, - FInfo#file_info{mode=Mode}); - Error -> Error - end. - -clean_logs(Files, Suffix) -> - [begin - ok = delete_file(File), - ok = delete_file([File, Suffix]) - end || File <- Files], - ok. - -delete_file(File) -> - case file:delete(File) of - ok -> ok; - {error, enoent} -> ok; - Error -> Error - end. - -make_files_non_writable(Files) -> - [ok = file:write_file_info(File, #file_info{mode=0}) || - File <- Files], - ok. - -add_log_handlers(Handlers) -> - [ok = error_logger:add_report_handler(Handler, Args) || - {Handler, Args} <- Handlers], - ok. - -delete_log_handlers(Handlers) -> - [[] = error_logger:delete_report_handler(Handler) || - Handler <- Handlers], - ok. - -handle_hook(HookName, Handler, Args) -> - A = atom_to_list(HookName) ++ "_" ++ atom_to_list(Handler) ++ "_fired", - put(list_to_atom(A), Args). -bad_handle_hook(_, _, _) -> - bad:bad(). -extra_arg_hook(Hookname, Handler, Args, Extra1, Extra2) -> - handle_hook(Hookname, Handler, {Args, Extra1, Extra2}). - -test_disk_queue() -> - rdq_stop(), - rdq_virgin(), - passed = rdq_stress_gc(5000), - passed = rdq_test_startup_with_queue_gaps(), - passed = rdq_test_redeliver(), - passed = rdq_test_purge(), - passed = rdq_test_mixed_queue_modes(), - passed = rdq_test_mode_conversion_mid_txn(), - passed = rdq_test_disk_queue_modes(), - rdq_virgin(), - passed. - -benchmark_disk_queue() -> - rdq_stop(), - % unicode chars are supported properly from r13 onwards - io:format("Msg Count\t| Msg Size\t| Queue Count\t| Startup mu s\t| Publish mu s\t| Pub mu s/msg\t| Pub mu s/byte\t| Deliver mu s\t| Del mu s/msg\t| Del mu s/byte~n", []), - [begin rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSize), - timer:sleep(1000) end || % 1000 milliseconds - MsgSize <- [512, 8192, 32768, 131072], - Qs <- [[1], lists:seq(1,10)], %, lists:seq(1,100), lists:seq(1,1000)], - MsgCount <- [1024, 4096, 16384] - ], - rdq_virgin(), - ok = control_action(stop_app, []), - ok = control_action(start_app, []), - passed. - -rdq_message(MsgId, MsgBody, IsPersistent) -> - rabbit_basic:message(x, <<>>, [], MsgBody, MsgId, IsPersistent). - -rdq_match_message( - #basic_message { guid = MsgId, content = - #content { payload_fragments_rev = [MsgBody] }}, - MsgId, MsgBody, Size) when size(MsgBody) =:= Size -> - ok. - -rdq_time_tx_publish_commit_deliver_ack(Qs, MsgCount, MsgSizeBytes) -> - Startup = rdq_virgin(), - rdq_start(), - QCount = length(Qs), - Msg = <<0:(8*MsgSizeBytes)>>, - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - {Publish, ok} = - timer:tc(?MODULE, rdq_time_commands, - [[fun() -> [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) - || N <- List, _ <- Qs] end, - fun() -> [ok = rabbit_disk_queue:tx_commit(Q, CommitList, []) - || Q <- Qs] end - ]]), - {Deliver, ok} = - timer:tc( - ?MODULE, rdq_time_commands, - [[fun() -> [begin SeqIds = - [begin - Remaining = MsgCount - N, - {Message, _TSize, false, SeqId, - Remaining} = rabbit_disk_queue:deliver(Q), - ok = rdq_match_message(Message, N, Msg, MsgSizeBytes), - SeqId - end || N <- List], - ok = rabbit_disk_queue:tx_commit(Q, [], SeqIds) - end || Q <- Qs] - end]]), - io:format(" ~15.10B| ~14.10B| ~14.10B| ~14.1f| ~14.1f| ~14.6f| ~14.10f| ~14.1f| ~14.6f| ~14.10f~n", - [MsgCount, MsgSizeBytes, QCount, float(Startup), - float(Publish), (Publish / (MsgCount * QCount)), - (Publish / (MsgCount * QCount * MsgSizeBytes)), - float(Deliver), (Deliver / (MsgCount * QCount)), - (Deliver / (MsgCount * QCount * MsgSizeBytes))]), - rdq_stop(). - -% we know each file is going to be 1024*1024*10 bytes in size (10MB), -% so make sure we have several files, and then keep punching holes in -% a reasonably sensible way. -rdq_stress_gc(MsgCount) -> - rdq_virgin(), - rdq_start(), - MsgSizeBytes = 256*1024, - Msg = <<0:(8*MsgSizeBytes)>>, % 256KB - List = lists:seq(1, MsgCount), - CommitList = lists:zip(List, lists:duplicate(MsgCount, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- List], - rabbit_disk_queue:tx_commit(q, CommitList, []), - StartChunk = round(MsgCount / 20), % 5% - AckList = - lists:foldl( - fun (E, Acc) -> - case lists:member(E, Acc) of - true -> Acc; - false -> [E|Acc] - end - end, [], lists:flatten( - lists:reverse( - [ lists:seq(N, MsgCount, N) - || N <- lists:seq(1, round(MsgCount / 2), 1) - ]))), - {Start, End} = lists:split(StartChunk, AckList), - AckList2 = End ++ Start, - MsgIdToSeqDict = - lists:foldl( - fun (MsgId, Acc) -> - Remaining = MsgCount - MsgId, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, MsgId, Msg, MsgSizeBytes), - dict:store(MsgId, SeqId, Acc) - end, dict:new(), List), - %% we really do want to ack each of this individually - [begin {ok, SeqId} = dict:find(MsgId, MsgIdToSeqDict), - rabbit_disk_queue:ack(q, [SeqId]) - end || MsgId <- AckList2], - rabbit_disk_queue:tx_commit(q, [], []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_startup_with_queue_gaps() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, true)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% ack every other message we have delivered (starting at the _first_) - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:ack(q, [SeqId2]), - false; - (_SeqId2, false) -> - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Acked every other message delivered done~n", []), - rdq_stop(), - rdq_start(), - io:format("Startup (with shuffle) done~n", []), - %% should have shuffled up. So we should now get - %% lists:seq(2,500,2) already delivered - Seqs2 = [begin - Remaining = round(Total - ((Half + N)/2)), - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(2,Half,2)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - io:format("Reread non-acked messages done~n", []), - %% and now fetch the rest - Seqs3 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1 + Half,Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - io:format("Read second half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_redeliver() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - %% now requeue every other message (starting at the _first_) - %% and ack the other ones - lists:foldl(fun (SeqId2, true) -> - rabbit_disk_queue:requeue(q, [{SeqId2, true}]), - false; - (SeqId2, false) -> - rabbit_disk_queue:ack(q, [SeqId2]), - true - end, true, Seqs), - rabbit_disk_queue:tx_commit(q, [], []), - io:format("Redeliver and acking done~n", []), - %% we should now get the 2nd half in order, followed by - %% every-other-from-the-first-half - Seqs2 = [begin - Remaining = round(Total - N + (Half/2)), - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1+Half, Total)], - rabbit_disk_queue:tx_commit(q, [], Seqs2), - Seqs3 = [begin - Remaining = round((Half - N) / 2) - 1, - {Message, _TSize, true, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1, Half, 2)], - rabbit_disk_queue:tx_commit(q, [], Seqs3), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_test_purge() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half = round(Total/2), - All = lists:seq(1,Total), - CommitAll = lists:zip(All, lists:duplicate(Total, false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- All], - rabbit_disk_queue:tx_commit(q, CommitAll, []), - io:format("Publish done~n", []), - %% deliver first half - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- lists:seq(1,Half)], - io:format("Deliver first half done~n", []), - rabbit_disk_queue:purge(q), - io:format("Purge done~n", []), - rabbit_disk_queue:tx_commit(q, [], Seqs), - io:format("Ack first half done~n", []), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_new_mixed_queue(Q, Durable, Disk) -> - {ok, MS} = rabbit_mixed_queue:init(Q, Durable), - {MS1, _, _, _} = - rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS), - case Disk of - true -> {ok, MS2} = rabbit_mixed_queue:to_disk_only_mode([], MS1), - MS2; - false -> MS1 - end. - -rdq_test_mixed_queue_modes() -> - rdq_virgin(), - rdq_start(), - Payload = <<0:(8*256)>>, - MS = rdq_new_mixed_queue(q, true, false), - MS2 = lists:foldl( - fun (_N, MS1) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS, lists:seq(1,10)), - MS4 = lists:foldl( - fun (_N, MS3) -> - Msg = (rabbit_basic:message(x, <<>>, [], Payload)) - #basic_message { is_persistent = true }, - {ok, MS3a} = rabbit_mixed_queue:publish(Msg, MS3), - MS3a - end, MS2, lists:seq(1,10)), - MS6 = lists:foldl( - fun (_N, MS5) -> - Msg = rabbit_basic:message(x, <<>>, [], Payload), - {ok, MS5a} = rabbit_mixed_queue:publish(Msg, MS5), - MS5a - end, MS4, lists:seq(1,10)), - 30 = rabbit_mixed_queue:length(MS6), - io:format("Published a mixture of messages; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS6)]), - {ok, MS7} = rabbit_mixed_queue:to_disk_only_mode([], MS6), - 30 = rabbit_mixed_queue:length(MS7), - io:format("Converted to disk only mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS7)]), - {ok, MS8} = rabbit_mixed_queue:to_mixed_mode([], MS7), - 30 = rabbit_mixed_queue:length(MS8), - io:format("Converted to mixed mode; ~w~n", - [rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS8)]), - MS10 = - lists:foldl( - fun (N, MS9) -> - Rem = 30 - N, - {{#basic_message { is_persistent = false }, - false, _AckTag, Rem}, - MS9a} = rabbit_mixed_queue:deliver(MS9), - MS9a - end, MS8, lists:seq(1,10)), - 20 = rabbit_mixed_queue:length(MS10), - io:format("Delivered initial non persistent messages~n"), - {ok, MS11} = rabbit_mixed_queue:to_disk_only_mode([], MS10), - 20 = rabbit_mixed_queue:length(MS11), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS12 = rdq_new_mixed_queue(q, true, false), - 10 = rabbit_mixed_queue:length(MS12), - io:format("Recovered queue~n"), - {MS14, AckTags} = - lists:foldl( - fun (N, {MS13, AcksAcc}) -> - Rem = 10 - N, - {{Msg = #basic_message { is_persistent = true }, - false, AckTag, Rem}, - MS13a} = rabbit_mixed_queue:deliver(MS13), - {MS13a, [{Msg, AckTag} | AcksAcc]} - end, {MS12, []}, lists:seq(1,10)), - 0 = rabbit_mixed_queue:length(MS14), - {ok, MS15} = rabbit_mixed_queue:ack(AckTags, MS14), - io:format("Delivered and acked all messages~n"), - {ok, MS16} = rabbit_mixed_queue:to_disk_only_mode([], MS15), - 0 = rabbit_mixed_queue:length(MS16), - io:format("Converted to disk only mode~n"), - rdq_stop(), - rdq_start(), - MS17 = rdq_new_mixed_queue(q, true, false), - 0 = rabbit_mixed_queue:length(MS17), - {MS17,0,0,0} = rabbit_mixed_queue:estimate_queue_memory_and_reset_counters(MS17), - io:format("Recovered queue~n"), - rdq_stop(), - passed. - -rdq_test_mode_conversion_mid_txn() -> - Payload = <<0:(8*256)>>, - MsgIdsA = lists:seq(0,9), - MsgsA = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsA ], - MsgIdsB = lists:seq(10,20), - MsgsB = [ rabbit_basic:message(x, <<>>, [], Payload, MsgId, - (0 == MsgId rem 2)) - || MsgId <- MsgIdsB ], - - rdq_virgin(), - rdq_start(), - MS0 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS0, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, commit), - - rdq_stop_virgin_start(), - MS1 = rdq_new_mixed_queue(q, true, false), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS1, MsgsA, MsgsB, fun rabbit_mixed_queue:to_disk_only_mode/2, cancel), - - - rdq_stop_virgin_start(), - MS2 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS2, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, commit), - - rdq_stop_virgin_start(), - MS3 = rdq_new_mixed_queue(q, true, true), - passed = rdq_tx_publish_mixed_alter_commit_get( - MS3, MsgsA, MsgsB, fun rabbit_mixed_queue:to_mixed_mode/2, cancel), - - rdq_stop(), - passed. - -rdq_tx_publish_mixed_alter_commit_get(MS0, MsgsA, MsgsB, ChangeFun, CommitOrCancel) -> - 0 = rabbit_mixed_queue:length(MS0), - MS2 = lists:foldl( - fun (Msg, MS1) -> - {ok, MS1a} = rabbit_mixed_queue:publish(Msg, MS1), - MS1a - end, MS0, MsgsA), - Len0 = length(MsgsA), - Len0 = rabbit_mixed_queue:length(MS2), - MS4 = lists:foldl( - fun (Msg, MS3) -> - {ok, MS3a} = rabbit_mixed_queue:tx_publish(Msg, MS3), - MS3a - end, MS2, MsgsB), - Len0 = rabbit_mixed_queue:length(MS4), - {ok, MS5} = ChangeFun(MsgsB, MS4), - Len0 = rabbit_mixed_queue:length(MS5), - {ok, MS9} = - case CommitOrCancel of - commit -> - {ok, MS6} = rabbit_mixed_queue:tx_commit(MsgsB, [], MS5), - Len1 = Len0 + length(MsgsB), - Len1 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len1 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA ++ MsgsB), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8); - cancel -> - {ok, MS6} = rabbit_mixed_queue:tx_cancel(MsgsB, MS5), - Len0 = rabbit_mixed_queue:length(MS6), - {AckTags, MS8} = - lists:foldl( - fun (Msg, {Acc, MS7}) -> - Rem = Len0 - (Msg #basic_message.guid) - 1, - {{Msg, false, AckTag, Rem}, MS7a} = - rabbit_mixed_queue:deliver(MS7), - {[{Msg, AckTag} | Acc], MS7a} - end, {[], MS6}, MsgsA), - 0 = rabbit_mixed_queue:length(MS8), - rabbit_mixed_queue:ack(AckTags, MS8) - end, - 0 = rabbit_mixed_queue:length(MS9), - Msg = rdq_message(0, <<0:256>>, false), - {ok, AckTag, MS10} = rabbit_mixed_queue:publish_delivered(Msg, MS9), - {ok,MS11} = rabbit_mixed_queue:ack([{Msg, AckTag}], MS10), - 0 = rabbit_mixed_queue:length(MS11), - passed. - -rdq_test_disk_queue_modes() -> - rdq_virgin(), - rdq_start(), - Msg = <<0:(8*256)>>, - Total = 1000, - Half1 = lists:seq(1,round(Total/2)), - Half2 = lists:seq(1 + round(Total/2), Total), - CommitHalf1 = lists:zip(Half1, lists:duplicate(round(Total/2), false)), - CommitHalf2 = lists:zip(Half2, lists:duplicate - (Total - round(Total/2), false)), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half1], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf1, []), - io:format("Publish done~n", []), - ok = rabbit_disk_queue:to_disk_only_mode(), - io:format("To Disk Only done~n", []), - [rabbit_disk_queue:tx_publish(rdq_message(N, Msg, false)) || N <- Half2], - ok = rabbit_disk_queue:tx_commit(q, CommitHalf2, []), - Seqs = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half1], - io:format("Deliver first half done~n", []), - ok = rabbit_disk_queue:to_ram_disk_mode(), - io:format("To RAM Disk done~n", []), - Seqs2 = [begin - Remaining = Total - N, - {Message, _TSize, false, SeqId, Remaining} = - rabbit_disk_queue:deliver(q), - ok = rdq_match_message(Message, N, Msg, 256), - SeqId - end || N <- Half2], - io:format("Deliver second half done~n", []), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs), - ok = rabbit_disk_queue:to_disk_only_mode(), - ok = rabbit_disk_queue:tx_commit(q, [], Seqs2), - empty = rabbit_disk_queue:deliver(q), - rdq_stop(), - passed. - -rdq_time_commands(Funcs) -> - lists:foreach(fun (F) -> F() end, Funcs). - -rdq_virgin() -> - {Micros, {ok, _}} = - timer:tc(rabbit_disk_queue, start_link, []), - ok = rabbit_disk_queue:stop_and_obliterate(), - timer:sleep(1000), - Micros. - -rdq_start() -> - {ok, _} = rabbit_disk_queue:start_link(), - ok = rabbit_disk_queue:to_ram_disk_mode(), - ok. - -rdq_stop() -> - rabbit_disk_queue:stop(), - timer:sleep(1000). - -rdq_stop_virgin_start() -> - rdq_stop(), - rdq_virgin(), - rdq_start(). diff --git a/src/rabbit_tracer.erl b/src/rabbit_tracer.erl deleted file mode 100644 index 0c023f2a..00000000 --- a/src/rabbit_tracer.erl +++ /dev/null @@ -1,50 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_tracer). --export([start/0]). - --import(erlang). - -start() -> - spawn(fun mainloop/0), - ok. - -mainloop() -> - erlang:trace(new, true, [all]), - mainloop1(). - -mainloop1() -> - receive - Msg -> - rabbit_log:info("TRACE: ~p~n", [Msg]) - end, - mainloop1(). diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl deleted file mode 100644 index 42a01577..00000000 --- a/src/rabbit_variable_queue.erl +++ /dev/null @@ -1,1134 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_variable_queue). - --export([init/1, terminate/1, publish/2, publish_delivered/2, - set_queue_ram_duration_target/2, remeasure_rates/1, - ram_duration/1, fetch/1, ack/2, len/1, is_empty/1, purge/1, delete/1, - requeue/2, tx_publish/2, tx_rollback/2, tx_commit/4, - tx_commit_from_msg_store/4, tx_commit_from_vq/1, needs_sync/1, - flush_journal/1, status/1]). - -%%---------------------------------------------------------------------------- - --record(vqstate, - { q1, - q2, - delta, - q3, - q4, - duration_target, - target_ram_msg_count, - ram_msg_count, - ram_msg_count_prev, - ram_index_count, - index_state, - next_seq_id, - out_counter, - in_counter, - egress_rate, - avg_egress_rate, - ingress_rate, - avg_ingress_rate, - rate_timestamp, - len, - on_sync, - msg_store_read_state - }). - --include("rabbit.hrl"). --include("rabbit_queue.hrl"). - --record(msg_status, - { msg, - msg_id, - seq_id, - is_persistent, - is_delivered, - msg_on_disk, - index_on_disk - }). - -%% When we discover, on publish, that we should write some indices to -%% disk for some betas, the RAM_INDEX_BATCH_SIZE sets the number of -%% betas that we must be due to write indices for before we do any -%% work at all. This is both a minimum and a maximum - we don't write -%% fewer than RAM_INDEX_BATCH_SIZE indices out in one go, and we don't -%% write more - we can always come back on the next publish to do -%% more. --define(RAM_INDEX_BATCH_SIZE, 64). - -%%---------------------------------------------------------------------------- - -%% WRONG - UPDATE ME! - -%% Basic premise is that msgs move from q1 -> q2 -> delta -> q3 -> q4 -%% but they can only do so in the right form. q1 and q4 only hold -%% alphas (msgs in ram), q2 and q3 only hold betas (msg on disk, index -%% in ram), and delta is just a count of the number of index entries -%% on disk at that stage (msg on disk, index on disk). -%% -%% When a msg arrives, we decide in which form it should be. It is -%% then added to the right-most appropriate queue, maintaining -%% order. Thus if the msg is to be an alpha, it will be added to q1, -%% unless all of q2, delta and q3 are empty, in which case it will go -%% to q4. If it is to be a beta, it will be added to q2 unless delta -%% is empty, in which case it will go to q3. -%% -%% The major invariant is that if the msg is to be a beta, q1 will be -%% empty, and if it is to be a delta then both q1 and q2 will be empty. -%% -%% When taking msgs out of the queue, if q4 is empty then we read -%% directly from q3, or delta, if q3 is empty. If q3 and delta are -%% empty then we have an invariant that q2 must be empty because q2 -%% can only grow if delta is non empty. -%% -%% A further invariant is that if the queue is non empty, either q4 or -%% q3 contains at least one entry. I.e. we never allow delta to -%% contain all msgs in the queue. Also, if q4 is non empty and delta -%% is non empty then q3 must be non empty. - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(bpqueue() :: any()). --type(msg_id() :: binary()). --type(seq_id() :: non_neg_integer()). --type(ack() :: {'ack_index_and_store', msg_id(), seq_id()} - | 'ack_not_on_disk'). --type(vqstate() :: #vqstate { - q1 :: queue(), - q2 :: bpqueue(), - delta :: delta(), - q3 :: bpqueue(), - q4 :: queue(), - duration_target :: non_neg_integer(), - target_ram_msg_count :: non_neg_integer(), - ram_msg_count :: non_neg_integer(), - ram_msg_count_prev :: non_neg_integer(), - ram_index_count :: non_neg_integer(), - index_state :: any(), - next_seq_id :: seq_id(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), - egress_rate :: {{integer(), integer(), integer()}, non_neg_integer()}, - avg_egress_rate :: float(), - ingress_rate :: {{integer(), integer(), integer()}, non_neg_integer()}, - avg_ingress_rate :: float(), - rate_timestamp :: {integer(), integer(), integer()}, - len :: non_neg_integer(), - on_sync :: {[ack()], [msg_id()], [{pid(), any()}]}, - msg_store_read_state :: any() - }). - --spec(init/1 :: (queue_name()) -> vqstate()). --spec(terminate/1 :: (vqstate()) -> vqstate()). --spec(publish/2 :: (basic_message(), vqstate()) -> - {seq_id(), vqstate()}). --spec(publish_delivered/2 :: (basic_message(), vqstate()) -> - {ack(), vqstate()}). --spec(set_queue_ram_duration_target/2 :: - (('undefined' | 'infinity' | number()), vqstate()) -> vqstate()). --spec(remeasure_rates/1 :: (vqstate()) -> vqstate()). --spec(ram_duration/1 :: (vqstate()) -> number()). --spec(fetch/1 :: (vqstate()) -> - {('empty'|{basic_message(), boolean(), ack(), non_neg_integer()}), - vqstate()}). --spec(ack/2 :: ([ack()], vqstate()) -> vqstate()). --spec(len/1 :: (vqstate()) -> non_neg_integer()). --spec(is_empty/1 :: (vqstate()) -> boolean()). --spec(purge/1 :: (vqstate()) -> {non_neg_integer(), vqstate()}). --spec(delete/1 :: (vqstate()) -> vqstate()). --spec(requeue/2 :: ([{basic_message(), ack()}], vqstate()) -> vqstate()). --spec(tx_publish/2 :: (basic_message(), vqstate()) -> vqstate()). --spec(tx_rollback/2 :: ([msg_id()], vqstate()) -> vqstate()). --spec(tx_commit/4 :: ([msg_id()], [ack()], {pid(), any()}, vqstate()) -> - {boolean(), vqstate()}). --spec(tx_commit_from_msg_store/4 :: - ([msg_id()], [ack()], {pid(), any()}, vqstate()) -> vqstate()). --spec(tx_commit_from_vq/1 :: (vqstate()) -> vqstate()). --spec(needs_sync/1 :: (vqstate()) -> boolean()). --spec(flush_journal/1 :: (vqstate()) -> vqstate()). --spec(status/1 :: (vqstate()) -> [{atom(), any()}]). - --endif. - --define(BLANK_DELTA, #delta { start_seq_id = undefined, - count = 0, - end_seq_id = undefined }). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -init(QueueName) -> - {DeltaCount, IndexState} = - rabbit_queue_index:init(QueueName), - {DeltaSeqId, NextSeqId, IndexState1} = - rabbit_queue_index:find_lowest_seq_id_seg_and_next_seq_id(IndexState), - Delta = case DeltaCount of - 0 -> ?BLANK_DELTA; - _ -> #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = NextSeqId } - end, - Now = now(), - State = - #vqstate { q1 = queue:new(), q2 = bpqueue:new(), - delta = Delta, - q3 = bpqueue:new(), q4 = queue:new(), - duration_target = undefined, - target_ram_msg_count = undefined, - ram_msg_count = 0, - ram_msg_count_prev = 0, - ram_index_count = 0, - index_state = IndexState1, - next_seq_id = NextSeqId, - out_counter = 0, - in_counter = 0, - egress_rate = {Now, 0}, - avg_egress_rate = 0, - ingress_rate = {Now, DeltaCount}, - avg_ingress_rate = 0, - rate_timestamp = Now, - len = DeltaCount, - on_sync = {[], [], []}, - msg_store_read_state = rabbit_msg_store:client_init() - }, - maybe_deltas_to_betas(State). - -terminate(State = #vqstate { index_state = IndexState, - msg_store_read_state = MSCState }) -> - rabbit_msg_store:client_terminate(MSCState), - State #vqstate { index_state = rabbit_queue_index:terminate(IndexState) }. - -publish(Msg, State) -> - State1 = limit_ram_index(State), - publish(Msg, false, false, State1). - -publish_delivered(Msg = #basic_message { guid = MsgId, - is_persistent = IsPersistent }, - State = #vqstate { len = 0, index_state = IndexState, - next_seq_id = SeqId, - out_counter = OutCount, - in_counter = InCount}) -> - State1 = State #vqstate { out_counter = OutCount + 1, - in_counter = InCount + 1 }, - MsgStatus = #msg_status { - msg = Msg, msg_id = MsgId, seq_id = SeqId, is_persistent = IsPersistent, - is_delivered = true, msg_on_disk = false, index_on_disk = false }, - MsgStatus1 = maybe_write_msg_to_disk(false, MsgStatus), - case MsgStatus1 #msg_status.msg_on_disk of - true -> - {#msg_status { index_on_disk = true }, IndexState1} = - maybe_write_index_to_disk(false, MsgStatus1, IndexState), - {{ack_index_and_store, MsgId, SeqId}, - State1 #vqstate { index_state = IndexState1, - next_seq_id = SeqId + 1 }}; - false -> - {ack_not_on_disk, State1} - end. - -set_queue_ram_duration_target( - DurationTarget, State = #vqstate { avg_egress_rate = AvgEgressRate, - avg_ingress_rate = AvgIngressRate, - target_ram_msg_count = TargetRamMsgCount - }) -> - Rate = AvgEgressRate + AvgIngressRate, - TargetRamMsgCount1 = - case DurationTarget of - infinity -> undefined; - undefined -> undefined; - _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec - end, - State1 = State #vqstate { target_ram_msg_count = TargetRamMsgCount1, - duration_target = DurationTarget }, - case TargetRamMsgCount1 == undefined orelse - TargetRamMsgCount1 >= TargetRamMsgCount of - true -> State1; - false -> reduce_memory_use(State1) - end. - -remeasure_rates(State = #vqstate { egress_rate = Egress, - ingress_rate = Ingress, - rate_timestamp = Timestamp, - in_counter = InCount, - out_counter = OutCount, - ram_msg_count = RamMsgCount, - duration_target = DurationTarget }) -> - Now = now(), - {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), - {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), - - set_queue_ram_duration_target( - DurationTarget, - State #vqstate { egress_rate = Egress1, - avg_egress_rate = AvgEgressRate, - ingress_rate = Ingress1, - avg_ingress_rate = AvgIngressRate, - rate_timestamp = Now, - ram_msg_count_prev = RamMsgCount, - out_counter = 0, in_counter = 0 }). - -ram_duration(#vqstate { avg_egress_rate = AvgEgressRate, - avg_ingress_rate = AvgIngressRate, - ram_msg_count = RamMsgCount, - ram_msg_count_prev = RamMsgCountPrev }) -> - %% msgs / (msgs/sec) == sec - case AvgEgressRate == 0 andalso AvgIngressRate == 0 of - true -> infinity; - false -> (RamMsgCountPrev + RamMsgCount) / (2 * (AvgEgressRate + AvgIngressRate)) - end. - -fetch(State = - #vqstate { q4 = Q4, ram_msg_count = RamMsgCount, out_counter = OutCount, - index_state = IndexState, len = Len }) -> - case queue:out(Q4) of - {empty, _Q4} -> - fetch_from_q3_or_delta(State); - {{value, #msg_status { - msg = Msg, msg_id = MsgId, seq_id = SeqId, - is_persistent = IsPersistent, is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, index_on_disk = IndexOnDisk }}, - Q4a} -> - {IndexState1, IndexOnDisk1} = - case IndexOnDisk of - true -> - IndexState2 = - case IsDelivered of - false -> rabbit_queue_index:write_delivered( - SeqId, IndexState); - true -> IndexState - end, - case IsPersistent of - true -> {IndexState2, true}; - false -> {rabbit_queue_index:write_acks( - [SeqId], IndexState2), false} - end; - false -> - {IndexState, false} - end, - AckTag = - case IndexOnDisk1 of - true -> true = IsPersistent, %% ASSERTION - true = MsgOnDisk, %% ASSERTION - {ack_index_and_store, MsgId, SeqId}; - false -> ok = case MsgOnDisk andalso not IsPersistent of - true -> rabbit_msg_store:remove([MsgId]); - false -> ok - end, - ack_not_on_disk - end, - Len1 = Len - 1, - {{Msg, IsDelivered, AckTag, Len1}, - State #vqstate { q4 = Q4a, out_counter = OutCount + 1, - ram_msg_count = RamMsgCount - 1, - index_state = IndexState1, len = Len1 }} - end. - -ack(AckTags, State = #vqstate { index_state = IndexState }) -> - {MsgIds, SeqIds} = - lists:foldl( - fun (ack_not_on_disk, Acc) -> Acc; - ({ack_index_and_store, MsgId, SeqId}, {MsgIds, SeqIds}) -> - {[MsgId | MsgIds], [SeqId | SeqIds]} - end, {[], []}, AckTags), - IndexState1 = case SeqIds of - [] -> IndexState; - _ -> rabbit_queue_index:write_acks(SeqIds, IndexState) - end, - ok = case MsgIds of - [] -> ok; - _ -> rabbit_msg_store:remove(MsgIds) - end, - State #vqstate { index_state = IndexState1 }. - -len(#vqstate { len = Len }) -> - Len. - -is_empty(State) -> - 0 == len(State). - -purge(State = #vqstate { q4 = Q4, index_state = IndexState, len = Len }) -> - {Q4Count, IndexState1} = - remove_queue_entries(fun rabbit_misc:queue_fold/3, Q4, IndexState), - {Len, State1} = - purge1(Q4Count, State #vqstate { index_state = IndexState1, - q4 = queue:new() }), - {Len, State1 #vqstate { len = 0, ram_msg_count = 0, ram_index_count = 0 }}. - -%% the only difference between purge and delete is that delete also -%% needs to delete everything that's been delivered and not ack'd. -delete(State) -> - {_PurgeCount, State1 = #vqstate { index_state = IndexState }} = purge(State), - IndexState1 = - case rabbit_queue_index:find_lowest_seq_id_seg_and_next_seq_id( - IndexState) of - {N, N, IndexState2} -> - IndexState2; - {DeltaSeqId, NextSeqId, IndexState2} -> - {_DeleteCount, IndexState3} = - delete1(NextSeqId, 0, DeltaSeqId, IndexState2), - IndexState3 - end, - IndexState4 = rabbit_queue_index:terminate_and_erase(IndexState1), - State1 #vqstate { index_state = IndexState4 }. - -%% [{Msg, AckTag}] -%% We guarantee that after fetch, only persistent msgs are left on -%% disk. This means that in a requeue, we set MsgOnDisk to true, thus -%% avoiding calls to msg_store:write for persistent msgs. It also -%% means that we don't need to worry about calling msg_store:remove -%% (as ack would do) because transient msgs won't be on disk anyway, -%% thus they won't need to be removed. However, we do call -%% msg_store:release so that the cache isn't held full of msgs which -%% are now at the tail of the queue. -requeue(MsgsWithAckTags, State) -> - {SeqIds, MsgIds, State1 = #vqstate { index_state = IndexState }} = - lists:foldl( - fun ({Msg = #basic_message { guid = MsgId }, AckTag}, - {SeqIdsAcc, MsgIdsAcc, StateN}) -> - {SeqIdsAcc1, MsgIdsAcc1, MsgOnDisk} = - case AckTag of - ack_not_on_disk -> - {SeqIdsAcc, MsgIdsAcc, false}; - {ack_index_and_store, MsgId, SeqId} -> - {[SeqId | SeqIdsAcc], [MsgId | MsgIdsAcc], true} - end, - {_SeqId, StateN1} = publish(Msg, true, MsgOnDisk, StateN), - {SeqIdsAcc1, MsgIdsAcc1, StateN1} - end, {[], [], State}, MsgsWithAckTags), - IndexState1 = case SeqIds of - [] -> IndexState; - _ -> rabbit_queue_index:write_acks(SeqIds, IndexState) - end, - ok = case MsgIds of - [] -> ok; - _ -> rabbit_msg_store:release(MsgIds) - end, - State1 #vqstate { index_state = IndexState1 }. - -tx_publish(Msg = #basic_message { is_persistent = true, guid = MsgId }, - State) -> - MsgStatus = #msg_status { - msg = Msg, msg_id = MsgId, seq_id = undefined, is_persistent = true, - is_delivered = false, msg_on_disk = false, index_on_disk = false }, - #msg_status { msg_on_disk = true } = - maybe_write_msg_to_disk(false, MsgStatus), - State; -tx_publish(_Msg, State) -> - State. - -tx_rollback(Pubs, State) -> - ok = case persistent_msg_ids(Pubs) of - [] -> ok; - PP -> rabbit_msg_store:remove(PP) - end, - State. - -tx_commit(Pubs, AckTags, From, State) -> - case persistent_msg_ids(Pubs) of - [] -> - {true, tx_commit_from_msg_store(Pubs, AckTags, From, State)}; - PersistentMsgIds -> - Self = self(), - ok = rabbit_msg_store:sync( - PersistentMsgIds, - fun () -> ok = rabbit_amqqueue:tx_commit_msg_store_callback( - Self, Pubs, AckTags, From) - end), - {false, State} - end. - -tx_commit_from_msg_store(Pubs, AckTags, From, - State = #vqstate { on_sync = {SAcks, SPubs, SFroms} }) -> - DiskAcks = - lists:filter(fun (AckTag) -> AckTag /= ack_not_on_disk end, AckTags), - State #vqstate { on_sync = { [DiskAcks | SAcks], - [Pubs | SPubs], - [From | SFroms] }}. - -tx_commit_from_vq(State = #vqstate { on_sync = {SAcks, SPubs, SFroms} }) -> - State1 = ack(lists:flatten(SAcks), State), - {PubSeqIds, State2 = #vqstate { index_state = IndexState }} = - lists:foldl( - fun (Msg = #basic_message { is_persistent = IsPersistent }, - {SeqIdsAcc, StateN}) -> - {SeqId, StateN1} = publish(Msg, false, IsPersistent, StateN), - SeqIdsAcc1 = case IsPersistent of - true -> [SeqId | SeqIdsAcc]; - false -> SeqIdsAcc - end, - {SeqIdsAcc1, StateN1} - end, {[], State1}, lists:flatten(lists:reverse(SPubs))), - IndexState1 = - rabbit_queue_index:sync_seq_ids(PubSeqIds, IndexState), - [ gen_server2:reply(From, ok) || From <- lists:reverse(SFroms) ], - State2 #vqstate { index_state = IndexState1, on_sync = {[], [], []} }. - -needs_sync(#vqstate { on_sync = {_, _, []} }) -> - false; -needs_sync(_) -> - true. - -flush_journal(State = #vqstate { index_state = IndexState }) -> - State #vqstate { index_state = - rabbit_queue_index:flush_journal(IndexState) }. - -status(#vqstate { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, on_sync = {_, _, From}, - target_ram_msg_count = TargetRamMsgCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, - avg_egress_rate = AvgEgressRate, - avg_ingress_rate = AvgIngressRate, - next_seq_id = NextSeqId }) -> - [ {q1, queue:len(Q1)}, - {q2, bpqueue:len(Q2)}, - {delta, Delta}, - {q3, bpqueue:len(Q3)}, - {q4, queue:len(Q4)}, - {len, Len}, - {outstanding_txns, length(From)}, - {target_ram_msg_count, TargetRamMsgCount}, - {ram_msg_count, RamMsgCount}, - {ram_index_count, RamIndexCount}, - {avg_egress_rate, AvgEgressRate}, - {avg_ingress_rate, AvgIngressRate}, - {next_seq_id, NextSeqId} ]. - -%%---------------------------------------------------------------------------- -%% Minor helpers -%%---------------------------------------------------------------------------- - -update_rate(Now, Then, Count, {OThen, OCount}) -> - %% form the avg over the current period and the previous - Avg = 1000000 * ((Count + OCount) / timer:now_diff(Now, OThen)), - {Avg, {Then, Count}}. - -persistent_msg_ids(Pubs) -> - [MsgId || Obj = #basic_message { guid = MsgId } <- Pubs, - Obj #basic_message.is_persistent]. - -betas_from_segment_entries(List, SeqIdLimit) -> - bpqueue:from_list([{true, - [#msg_status { msg = undefined, - msg_id = MsgId, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true - } - || {MsgId, SeqId, IsPersistent, IsDelivered} <- List, - SeqId < SeqIdLimit ]}]). - -read_index_segment(SeqId, IndexState) -> - SeqId1 = SeqId + rabbit_queue_index:segment_size(), - case rabbit_queue_index:read_segment_entries(SeqId, IndexState) of - {[], IndexState1} -> read_index_segment(SeqId1, IndexState1); - {List, IndexState1} -> {List, IndexState1, SeqId1} - end. - -ensure_binary_properties(Msg = #basic_message { content = Content }) -> - Msg #basic_message { - content = rabbit_binary_parser:clear_decoded_content( - rabbit_binary_generator:ensure_content_encoded(Content)) }. - -%% the first arg is the older delta -combine_deltas(#delta { count = 0 }, #delta { count = 0 }) -> - ?BLANK_DELTA; -combine_deltas(#delta { count = 0 }, #delta { } = B) -> B; -combine_deltas(#delta { } = A, #delta { count = 0 }) -> A; -combine_deltas(#delta { start_seq_id = SeqIdLow, count = CountLow}, - #delta { start_seq_id = SeqIdHigh, count = CountHigh, - end_seq_id = SeqIdEnd }) -> - true = SeqIdLow =< SeqIdHigh, %% ASSERTION - Count = CountLow + CountHigh, - true = Count =< SeqIdEnd - SeqIdLow, %% ASSERTION - #delta { start_seq_id = SeqIdLow, count = Count, end_seq_id = SeqIdEnd }. - -beta_fold_no_index_on_disk(Fun, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> - Fun(Value, Acc) - end, Init, Q). - -permitted_ram_index_count(#vqstate { len = 0 }) -> - undefined; -permitted_ram_index_count(#vqstate { len = Len, q2 = Q2, q3 = Q3, - delta = #delta { count = DeltaCount } }) -> - AlphaBetaLen = Len - DeltaCount, - case AlphaBetaLen == 0 of - true -> - undefined; - false -> - BetaLen = bpqueue:len(Q2) + bpqueue:len(Q3), - %% the fraction of the alphas+betas that are betas - BetaFrac = BetaLen / AlphaBetaLen, - BetaLen - trunc(BetaFrac * BetaLen) - end. - - -should_force_index_to_disk(State = - #vqstate { ram_index_count = RamIndexCount }) -> - case permitted_ram_index_count(State) of - undefined -> false; - Permitted -> RamIndexCount >= Permitted - end. - -%%---------------------------------------------------------------------------- -%% Internal major helpers for Public API -%%---------------------------------------------------------------------------- - -delete1(NextSeqId, Count, DeltaSeqId, IndexState) - when DeltaSeqId >= NextSeqId -> - {Count, IndexState}; -delete1(NextSeqId, Count, DeltaSeqId, IndexState) -> - Delta1SeqId = DeltaSeqId + rabbit_queue_index:segment_size(), - case rabbit_queue_index:read_segment_entries(DeltaSeqId, IndexState) of - {[], IndexState1} -> - delete1(NextSeqId, Count, Delta1SeqId, IndexState1); - {List, IndexState1} -> - Q = betas_from_segment_entries(List, Delta1SeqId), - {QCount, IndexState2} = - remove_queue_entries(fun beta_fold_no_index_on_disk/3, - Q, IndexState1), - delete1(NextSeqId, Count + QCount, Delta1SeqId, IndexState2) - end. - -purge1(Count, State = #vqstate { q3 = Q3, index_state = IndexState }) -> - case bpqueue:is_empty(Q3) of - true -> - {Q1Count, IndexState1} = - remove_queue_entries(fun rabbit_misc:queue_fold/3, - State #vqstate.q1, IndexState), - {Count + Q1Count, State #vqstate { q1 = queue:new(), - index_state = IndexState1 }}; - false -> - {Q3Count, IndexState1} = - remove_queue_entries(fun beta_fold_no_index_on_disk/3, - Q3, IndexState), - purge1(Count + Q3Count, - maybe_deltas_to_betas( - State #vqstate { index_state = IndexState1, - q3 = bpqueue:new() })) - end. - -remove_queue_entries(Fold, Q, IndexState) -> - {Count, MsgIds, SeqIds, IndexState1} = - Fold(fun remove_queue_entries1/2, {0, [], [], IndexState}, Q), - ok = case MsgIds of - [] -> ok; - _ -> rabbit_msg_store:remove(MsgIds) - end, - IndexState2 = - case SeqIds of - [] -> IndexState1; - _ -> rabbit_queue_index:write_acks(SeqIds, IndexState1) - end, - {Count, IndexState2}. - -remove_queue_entries1( - #msg_status { msg_id = MsgId, seq_id = SeqId, - is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - {CountN, MsgIdsAcc, SeqIdsAcc, IndexStateN}) -> - MsgIdsAcc1 = case MsgOnDisk of - true -> [MsgId | MsgIdsAcc]; - false -> MsgIdsAcc - end, - SeqIdsAcc1 = case IndexOnDisk of - true -> [SeqId | SeqIdsAcc]; - false -> SeqIdsAcc - end, - IndexStateN1 = case IndexOnDisk andalso not IsDelivered of - true -> rabbit_queue_index:write_delivered( - SeqId, IndexStateN); - false -> IndexStateN - end, - {CountN + 1, MsgIdsAcc1, SeqIdsAcc1, IndexStateN1}. - -fetch_from_q3_or_delta(State = #vqstate { - q1 = Q1, q2 = Q2, delta = #delta { count = DeltaCount }, - q3 = Q3, q4 = Q4, ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, - msg_store_read_state = MSCState }) -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - 0 = DeltaCount, %% ASSERTION - true = bpqueue:is_empty(Q2), %% ASSERTION - true = queue:is_empty(Q1), %% ASSERTION - {empty, State}; - {{value, IndexOnDisk, MsgStatus = #msg_status { - msg = undefined, msg_id = MsgId, - is_persistent = IsPersistent }}, Q3a} -> - {{ok, Msg = #basic_message { is_persistent = IsPersistent, - guid = MsgId }}, MSCState1} = - rabbit_msg_store:read(MsgId, MSCState), - Q4a = queue:in(MsgStatus #msg_status { msg = Msg }, Q4), - RamIndexCount1 = case IndexOnDisk of - true -> RamIndexCount; - false -> RamIndexCount - 1 - end, - true = RamIndexCount1 >= 0, %% ASSERTION - State1 = State #vqstate { q3 = Q3a, q4 = Q4a, - ram_msg_count = RamMsgCount + 1, - ram_index_count = RamIndexCount1, - msg_store_read_state = MSCState1 }, - State2 = - case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of - {true, true} -> - %% q3 is now empty, it wasn't before; delta is - %% still empty. So q2 must be empty, and q1 - %% can now be joined onto q4 - true = bpqueue:is_empty(Q2), %% ASSERTION - State1 #vqstate { q1 = queue:new(), - q4 = queue:join(Q4a, Q1) }; - {true, false} -> - maybe_deltas_to_betas(State1); - {false, _} -> - %% q3 still isn't empty, we've not touched - %% delta, so the invariants between q1, q2, - %% delta and q3 are maintained - State1 - end, - fetch(State2) - end. - -reduce_memory_use(State = #vqstate { ram_msg_count = RamMsgCount, - target_ram_msg_count = TargetRamMsgCount }) - when TargetRamMsgCount == undefined orelse TargetRamMsgCount >= RamMsgCount -> - State; -reduce_memory_use(State = - #vqstate { target_ram_msg_count = TargetRamMsgCount }) -> - State1 = maybe_push_q4_to_betas(maybe_push_q1_to_betas(State)), - case TargetRamMsgCount of - 0 -> push_betas_to_deltas(State1); - _ -> State1 - end. - -%%---------------------------------------------------------------------------- -%% Internal gubbins for publishing -%%---------------------------------------------------------------------------- - -test_keep_msg_in_ram(SeqId, #vqstate { target_ram_msg_count = TargetRamMsgCount, - ram_msg_count = RamMsgCount, - q1 = Q1, q3 = Q3 }) -> - case TargetRamMsgCount of - undefined -> - msg; - 0 -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - %% if TargetRamMsgCount == 0, we know we have no - %% alphas. If q3 is empty then delta must be empty - %% too, so create a beta, which should end up in - %% q3 - index; - {{value, _IndexOnDisk, #msg_status { seq_id = OldSeqId }}, - _Q3a} -> - %% Don't look at the current delta as it may be - %% empty. If the SeqId is still within the current - %% segment, it'll be a beta, else it'll go into - %% delta - case SeqId >= rabbit_queue_index:next_segment_boundary( - OldSeqId) of - true -> neither; - false -> index - end - end; - _ when TargetRamMsgCount > RamMsgCount -> - msg; - _ -> - case queue:is_empty(Q1) of - true -> index; - %% Can push out elders (in q1) to disk. This may also - %% result in the msg itself going to disk and q2/q3. - false -> msg - end - end. - -publish(Msg = #basic_message { is_persistent = IsPersistent, guid = MsgId }, - IsDelivered, MsgOnDisk, State = - #vqstate { next_seq_id = SeqId, len = Len, in_counter = InCount }) -> - MsgStatus = #msg_status { - msg = Msg, msg_id = MsgId, seq_id = SeqId, is_persistent = IsPersistent, - is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = false }, - {SeqId, publish(test_keep_msg_in_ram(SeqId, State), MsgStatus, - State #vqstate { next_seq_id = SeqId + 1, len = Len + 1, - in_counter = InCount + 1 })}. - -publish(msg, MsgStatus, State = #vqstate { index_state = IndexState, - ram_msg_count = RamMsgCount }) -> - MsgStatus1 = maybe_write_msg_to_disk(false, MsgStatus), - {MsgStatus2, IndexState1} = - maybe_write_index_to_disk(false, MsgStatus1, IndexState), - State1 = State #vqstate { ram_msg_count = RamMsgCount + 1, - index_state = IndexState1 }, - store_alpha_entry(MsgStatus2, State1); - -publish(index, MsgStatus, State = - #vqstate { index_state = IndexState, q1 = Q1, - ram_index_count = RamIndexCount }) -> - MsgStatus1 = #msg_status { msg_on_disk = true } = - maybe_write_msg_to_disk(true, MsgStatus), - ForceIndex = should_force_index_to_disk(State), - {MsgStatus2, IndexState1} = - maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), - RamIndexCount1 = case MsgStatus2 #msg_status.index_on_disk of - true -> RamIndexCount; - false -> RamIndexCount + 1 - end, - State1 = State #vqstate { index_state = IndexState1, - ram_index_count = RamIndexCount1 }, - true = queue:is_empty(Q1), %% ASSERTION - store_beta_entry(MsgStatus2, State1); - -publish(neither, MsgStatus = #msg_status { seq_id = SeqId }, State = - #vqstate { index_state = IndexState, q1 = Q1, q2 = Q2, - delta = Delta }) -> - MsgStatus1 = #msg_status { msg_on_disk = true } = - maybe_write_msg_to_disk(true, MsgStatus), - {#msg_status { index_on_disk = true }, IndexState1} = - maybe_write_index_to_disk(true, MsgStatus1, IndexState), - true = queue:is_empty(Q1) andalso bpqueue:is_empty(Q2), %% ASSERTION - %% delta may be empty, seq_id > next_segment_boundary from q3 - %% head, so we need to find where the segment boundary is before - %% or equal to seq_id - DeltaSeqId = rabbit_queue_index:next_segment_boundary(SeqId) - - rabbit_queue_index:segment_size(), - Delta1 = #delta { start_seq_id = DeltaSeqId, count = 1, - end_seq_id = SeqId + 1 }, - State #vqstate { index_state = IndexState1, - delta = combine_deltas(Delta, Delta1) }. - -store_alpha_entry(MsgStatus, State = - #vqstate { q1 = Q1, q2 = Q2, - delta = #delta { count = DeltaCount }, - q3 = Q3, q4 = Q4 }) -> - case bpqueue:is_empty(Q2) andalso 0 == DeltaCount andalso - bpqueue:is_empty(Q3) of - true -> true = queue:is_empty(Q1), %% ASSERTION - State #vqstate { q4 = queue:in(MsgStatus, Q4) }; - false -> maybe_push_q1_to_betas( - State #vqstate { q1 = queue:in(MsgStatus, Q1) }) - end. - -store_beta_entry(MsgStatus = #msg_status { msg_on_disk = true, - index_on_disk = IndexOnDisk }, - State = #vqstate { q2 = Q2, - delta = #delta { count = DeltaCount }, - q3 = Q3 }) -> - MsgStatus1 = MsgStatus #msg_status { msg = undefined }, - case DeltaCount == 0 of - true -> - State #vqstate { q3 = bpqueue:in(IndexOnDisk, MsgStatus1, Q3) }; - false -> - State #vqstate { q2 = bpqueue:in(IndexOnDisk, MsgStatus1, Q2) } - end. - -maybe_write_msg_to_disk(_Force, MsgStatus = - #msg_status { msg_on_disk = true }) -> - MsgStatus; -maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { - msg = Msg, msg_id = MsgId, - is_persistent = IsPersistent }) - when Force orelse IsPersistent -> - ok = rabbit_msg_store:write(MsgId, ensure_binary_properties(Msg)), - MsgStatus #msg_status { msg_on_disk = true }; -maybe_write_msg_to_disk(_Force, MsgStatus) -> - MsgStatus. - -maybe_write_index_to_disk(_Force, MsgStatus = - #msg_status { index_on_disk = true }, IndexState) -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - {MsgStatus, IndexState}; -maybe_write_index_to_disk(Force, MsgStatus = #msg_status { - msg_id = MsgId, seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered }, IndexState) - when Force orelse IsPersistent -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - IndexState1 = rabbit_queue_index:write_published( - MsgId, SeqId, IsPersistent, IndexState), - {MsgStatus #msg_status { index_on_disk = true }, - case IsDelivered of - true -> rabbit_queue_index:write_delivered(SeqId, IndexState1); - false -> IndexState1 - end}; -maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> - {MsgStatus, IndexState}. - -%%---------------------------------------------------------------------------- -%% Phase changes -%%---------------------------------------------------------------------------- - -limit_ram_index(State = #vqstate { ram_index_count = RamIndexCount }) -> - case permitted_ram_index_count(State) of - undefined -> - State; - Permitted when RamIndexCount > Permitted -> - Reduction = lists:min([RamIndexCount - Permitted, - ?RAM_INDEX_BATCH_SIZE]), - case Reduction < ?RAM_INDEX_BATCH_SIZE of - true -> - State; - false -> - {Reduction1, State1} = limit_q2_ram_index(Reduction, State), - {_Red2, State2} = limit_q3_ram_index(Reduction1, State1), - State2 - end; - _ -> - State - end. - -limit_q2_ram_index(Reduction, State = #vqstate { q2 = Q2 }) - when Reduction > 0 -> - {Q2a, Reduction1, State1} = limit_ram_index(fun bpqueue:map_fold_filter_l/4, - Q2, Reduction, State), - {Reduction1, State1 #vqstate { q2 = Q2a }}; -limit_q2_ram_index(Reduction, State) -> - {Reduction, State}. - -limit_q3_ram_index(Reduction, State = #vqstate { q3 = Q3 }) - when Reduction > 0 -> - %% use the _r version so that we prioritise the msgs closest to - %% delta, and least soon to be delivered - {Q3a, Reduction1, State1} = limit_ram_index(fun bpqueue:map_fold_filter_r/4, - Q3, Reduction, State), - {Reduction1, State1 #vqstate { q3 = Q3a }}; -limit_q3_ram_index(Reduction, State) -> - {Reduction, State}. - -limit_ram_index(MapFoldFilterFun, Q, Reduction, State = - #vqstate { ram_index_count = RamIndexCount, - index_state = IndexState }) -> - {Qa, {Reduction1, IndexState1}} = - MapFoldFilterFun( - fun erlang:'not'/1, - fun (MsgStatus, {0, _IndexStateN}) -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - stop; - (MsgStatus, {N, IndexStateN}) when N > 0 -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - {MsgStatus1, IndexStateN1} = - maybe_write_index_to_disk(true, MsgStatus, IndexStateN), - {true, MsgStatus1, {N-1, IndexStateN1}} - end, {Reduction, IndexState}, Q), - RamIndexCount1 = RamIndexCount - (Reduction - Reduction1), - {Qa, Reduction1, State #vqstate { index_state = IndexState1, - ram_index_count = RamIndexCount1 }}. - -maybe_deltas_to_betas(State = #vqstate { delta = #delta { count = 0 } }) -> - State; -maybe_deltas_to_betas( - State = #vqstate { index_state = IndexState, q2 = Q2, q3 = Q3, - target_ram_msg_count = TargetRamMsgCount, - delta = #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = DeltaSeqIdEnd }}) -> - case (not bpqueue:is_empty(Q3)) andalso (0 == TargetRamMsgCount) of - true -> - State; - false -> - %% either q3 is empty, in which case we load at least one - %% segment, or TargetRamMsgCount > 0, meaning we should - %% really be holding all the betas in memory. - {List, IndexState1, Delta1SeqId} = - read_index_segment(DeltaSeqId, IndexState), - State1 = State #vqstate { index_state = IndexState1 }, - %% length(List) may be < segment_size because of acks. But - %% it can't be [] - Q3a = betas_from_segment_entries(List, DeltaSeqIdEnd), - Q3b = bpqueue:join(Q3, Q3a), - case DeltaCount - bpqueue:len(Q3a) of - 0 -> - %% delta is now empty, but it wasn't before, so - %% can now join q2 onto q3 - State1 #vqstate { delta = ?BLANK_DELTA, - q2 = bpqueue:new(), - q3 = bpqueue:join(Q3b, Q2) }; - N when N > 0 -> - State1 #vqstate { - q3 = Q3b, - delta = #delta { start_seq_id = Delta1SeqId, - count = N, - end_seq_id = DeltaSeqIdEnd } } - end - end. - -maybe_push_q1_to_betas(State = #vqstate { q1 = Q1 }) -> - maybe_push_alphas_to_betas( - fun queue:out/1, - fun (MsgStatus, Q1a, State1) -> - %% these could legally go to q3 if delta and q2 are empty - store_beta_entry(MsgStatus, State1 #vqstate { q1 = Q1a }) - end, Q1, State). - -maybe_push_q4_to_betas(State = #vqstate { q4 = Q4 }) -> - maybe_push_alphas_to_betas( - fun queue:out_r/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q4a, State1 = #vqstate { q3 = Q3 }) -> - MsgStatus1 = MsgStatus #msg_status { msg = undefined }, - %% these must go to q3 - State1 #vqstate { q3 = bpqueue:in_r(IndexOnDisk, MsgStatus1, Q3), - q4 = Q4a } - end, Q4, State). - -maybe_push_alphas_to_betas(_Generator, _Consumer, _Q, State = - #vqstate { ram_msg_count = RamMsgCount, - target_ram_msg_count = TargetRamMsgCount }) - when TargetRamMsgCount == undefined orelse TargetRamMsgCount >= RamMsgCount -> - State; -maybe_push_alphas_to_betas( - Generator, Consumer, Q, State = - #vqstate { ram_msg_count = RamMsgCount, ram_index_count = RamIndexCount, - index_state = IndexState }) -> - case Generator(Q) of - {empty, _Q} -> State; - {{value, MsgStatus}, Qa} -> - MsgStatus1 = maybe_write_msg_to_disk(true, MsgStatus), - ForceIndex = should_force_index_to_disk(State), - {MsgStatus2, IndexState1} = - maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), - RamIndexCount1 = case MsgStatus2 #msg_status.index_on_disk of - true -> RamIndexCount; - false -> RamIndexCount + 1 - end, - State1 = State #vqstate { ram_msg_count = RamMsgCount - 1, - ram_index_count = RamIndexCount1, - index_state = IndexState1 }, - maybe_push_alphas_to_betas(Generator, Consumer, Qa, - Consumer(MsgStatus2, Qa, State1)) - end. - -push_betas_to_deltas(State = #vqstate { q2 = Q2, delta = Delta, q3 = Q3, - ram_index_count = RamIndexCount, - index_state = IndexState }) -> - %% HighSeqId is high in the sense that it must be higher than the - %% seq_id in Delta, but it's also the lowest of the betas that we - %% transfer from q2 to delta. - {HighSeqId, Len1, Q2a, RamIndexCount1, IndexState1} = - push_betas_to_deltas( - fun bpqueue:out/1, undefined, Q2, RamIndexCount, IndexState), - true = bpqueue:is_empty(Q2a), %% ASSERTION - EndSeqId = - case bpqueue:out_r(Q2) of - {empty, _Q2} -> - undefined; - {{value, _IndexOnDisk, #msg_status { seq_id = EndSeqId1 }}, _Q2} -> - EndSeqId1 + 1 - end, - Delta1 = #delta { start_seq_id = Delta1SeqId } = - combine_deltas(Delta, #delta { start_seq_id = HighSeqId, - count = Len1, - end_seq_id = EndSeqId }), - State1 = State #vqstate { q2 = bpqueue:new(), delta = Delta1, - index_state = IndexState1, - ram_index_count = RamIndexCount1 }, - case bpqueue:out(Q3) of - {empty, _Q3} -> - State1; - {{value, _IndexOnDisk1, #msg_status { seq_id = SeqId }}, _Q3} -> - {{value, _IndexOnDisk2, #msg_status { seq_id = SeqIdMax }}, _Q3a} = - bpqueue:out_r(Q3), - Limit = rabbit_queue_index:next_segment_boundary(SeqId), - %% ASSERTION - true = Delta1SeqId == undefined orelse Delta1SeqId > SeqIdMax, - case SeqIdMax < Limit of - true -> %% already only holding LTE one segment indices in q3 - State1; - false -> - %% ASSERTION - %% This says that if Delta1SeqId /= undefined then - %% the gap from Limit to Delta1SeqId is an integer - %% multiple of segment_size - 0 = case Delta1SeqId of - undefined -> 0; - _ -> (Delta1SeqId - Limit) rem - rabbit_queue_index:segment_size() - end, - %% SeqIdMax is low in the sense that it must be - %% lower than the seq_id in delta1, in fact either - %% delta1 has undefined as its seq_id or there - %% does not exist a seq_id X s.t. X > SeqIdMax and - %% X < delta1's seq_id (would be +1 if it wasn't - %% for the possibility of gaps in the seq_ids). - %% But because we use queue:out_r, SeqIdMax is - %% actually also the highest seq_id of the betas we - %% transfer from q3 to deltas. - {SeqIdMax, Len2, Q3a, RamIndexCount2, IndexState2} = - push_betas_to_deltas(fun bpqueue:out_r/1, Limit, Q3, - RamIndexCount1, IndexState1), - Delta2 = combine_deltas(#delta { start_seq_id = Limit, - count = Len2, - end_seq_id = SeqIdMax+1 }, - Delta1), - State1 #vqstate { q3 = Q3a, delta = Delta2, - index_state = IndexState2, - ram_index_count = RamIndexCount2 } - end - end. - -push_betas_to_deltas(Generator, Limit, Q, RamIndexCount, IndexState) -> - case Generator(Q) of - {empty, Qa} -> {undefined, 0, Qa, RamIndexCount, IndexState}; - {{value, _IndexOnDisk, #msg_status { seq_id = SeqId }}, _Qa} -> - {Count, Qb, RamIndexCount1, IndexState1} = - push_betas_to_deltas( - Generator, Limit, Q, 0, RamIndexCount, IndexState), - {SeqId, Count, Qb, RamIndexCount1, IndexState1} - end. - -push_betas_to_deltas(Generator, Limit, Q, Count, RamIndexCount, IndexState) -> - case Generator(Q) of - {empty, Qa} -> - {Count, Qa, RamIndexCount, IndexState}; - {{value, _IndexOnDisk, #msg_status { seq_id = SeqId }}, _Qa} - when Limit /= undefined andalso SeqId < Limit -> - {Count, Q, RamIndexCount, IndexState}; - {{value, IndexOnDisk, MsgStatus}, Qa} -> - {RamIndexCount1, IndexState1} = - case IndexOnDisk of - true -> {RamIndexCount, IndexState}; - false -> - {#msg_status { index_on_disk = true }, IndexState2} = - maybe_write_index_to_disk(true, MsgStatus, - IndexState), - {RamIndexCount - 1, IndexState2} - end, - push_betas_to_deltas( - Generator, Limit, Qa, Count + 1, RamIndexCount1, IndexState1) - end. diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl deleted file mode 100644 index 1679ce7c..00000000 --- a/src/rabbit_writer.erl +++ /dev/null @@ -1,211 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_writer). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([start/3, start_link/3, shutdown/1, mainloop/1]). --export([send_command/2, send_command/3, send_command_and_signal_back/3, - send_command_and_signal_back/4, send_command_and_notify/5]). --export([internal_send_command/3, internal_send_command/5]). - --import(gen_tcp). - --record(wstate, {sock, channel, frame_max}). - --define(HIBERNATE_AFTER, 5000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/3 :: (socket(), channel_number(), non_neg_integer()) -> pid()). --spec(start_link/3 :: (socket(), channel_number(), non_neg_integer()) -> pid()). --spec(send_command/2 :: (pid(), amqp_method()) -> 'ok'). --spec(send_command/3 :: (pid(), amqp_method(), content()) -> 'ok'). --spec(send_command_and_signal_back/3 :: (pid(), amqp_method(), pid()) -> 'ok'). --spec(send_command_and_signal_back/4 :: - (pid(), amqp_method(), content(), pid()) -> 'ok'). --spec(send_command_and_notify/5 :: - (pid(), pid(), pid(), amqp_method(), content()) -> 'ok'). --spec(internal_send_command/3 :: - (socket(), channel_number(), amqp_method()) -> 'ok'). --spec(internal_send_command/5 :: - (socket(), channel_number(), amqp_method(), - content(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start(Sock, Channel, FrameMax) -> - spawn(?MODULE, mainloop, [#wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax}]). - -start_link(Sock, Channel, FrameMax) -> - spawn_link(?MODULE, mainloop, [#wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax}]). - -mainloop(State) -> - receive - Message -> ?MODULE:mainloop(handle_message(Message, State)) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, mainloop, [State]) - end. - -handle_message({send_command, MethodRecord}, - State = #wstate{sock = Sock, channel = Channel}) -> - ok = internal_send_command_async(Sock, Channel, MethodRecord), - State; -handle_message({send_command, MethodRecord, Content}, - State = #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax}) -> - ok = internal_send_command_async(Sock, Channel, MethodRecord, - Content, FrameMax), - State; -handle_message({send_command_and_signal_back, MethodRecord, Parent}, - State = #wstate{sock = Sock, channel = Channel}) -> - ok = internal_send_command_async(Sock, Channel, MethodRecord), - Parent ! rabbit_writer_send_command_signal, - State; -handle_message({send_command_and_signal_back, MethodRecord, Content, Parent}, - State = #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax}) -> - ok = internal_send_command_async(Sock, Channel, MethodRecord, - Content, FrameMax), - Parent ! rabbit_writer_send_command_signal, - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord, Content}, - State = #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax}) -> - ok = internal_send_command_async(Sock, Channel, MethodRecord, - Content, FrameMax), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({inet_reply, _, ok}, State) -> - State; -handle_message({inet_reply, _, Status}, _State) -> - exit({writer, send_failed, Status}); -handle_message(shutdown, _State) -> - exit(normal); -handle_message(Message, _State) -> - exit({writer, message_not_understood, Message}). - -%--------------------------------------------------------------------------- - -send_command(W, MethodRecord) -> - W ! {send_command, MethodRecord}, - ok. - -send_command(W, MethodRecord, Content) -> - W ! {send_command, MethodRecord, Content}, - ok. - -send_command_and_signal_back(W, MethodRecord, Parent) -> - W ! {send_command_and_signal_back, MethodRecord, Parent}, - ok. - -send_command_and_signal_back(W, MethodRecord, Content, Parent) -> - W ! {send_command_and_signal_back, MethodRecord, Content, Parent}, - ok. - -send_command_and_notify(W, Q, ChPid, MethodRecord, Content) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord, Content}, - ok. - -shutdown(W) -> - W ! shutdown, - ok. - -%--------------------------------------------------------------------------- - -assemble_frames(Channel, MethodRecord) -> - ?LOGMESSAGE(out, Channel, MethodRecord, none), - rabbit_binary_generator:build_simple_method_frame(Channel, MethodRecord). - -assemble_frames(Channel, MethodRecord, Content, FrameMax) -> - ?LOGMESSAGE(out, Channel, MethodRecord, Content), - MethodName = rabbit_misc:method_record_type(MethodRecord), - true = rabbit_framing:method_has_content(MethodName), % assertion - MethodFrame = rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord), - ContentFrames = rabbit_binary_generator:build_simple_content_frames( - Channel, Content, FrameMax), - [MethodFrame | ContentFrames]. - -tcp_send(Sock, Data) -> - rabbit_misc:throw_on_error(inet_error, - fun () -> rabbit_net:send(Sock, Data) end). - -internal_send_command(Sock, Channel, MethodRecord) -> - ok = tcp_send(Sock, assemble_frames(Channel, MethodRecord)). - -internal_send_command(Sock, Channel, MethodRecord, Content, FrameMax) -> - ok = tcp_send(Sock, assemble_frames(Channel, MethodRecord, - Content, FrameMax)). - -%% gen_tcp:send/2 does a selective receive of {inet_reply, Sock, -%% Status} to obtain the result. That is bad when it is called from -%% the writer since it requires scanning of the writers possibly quite -%% large message queue. -%% -%% So instead we lift the code from prim_inet:send/2, which is what -%% gen_tcp:send/2 calls, do the first half here and then just process -%% the result code in handle_message/2 as and when it arrives. -%% -%% This means we may end up happily sending data down a closed/broken -%% socket, but that's ok since a) data in the buffers will be lost in -%% any case (so qualitatively we are no worse off than if we used -%% gen_tcp:send/2), and b) we do detect the changed socket status -%% eventually, i.e. when we get round to handling the result code. -%% -%% Also note that the port has bounded buffers and port_command blocks -%% when these are full. So the fact that we process the result -%% asynchronously does not impact flow control. -internal_send_command_async(Sock, Channel, MethodRecord) -> - true = port_cmd(Sock, assemble_frames(Channel, MethodRecord)), - ok. - -internal_send_command_async(Sock, Channel, MethodRecord, Content, FrameMax) -> - true = port_cmd(Sock, assemble_frames(Channel, MethodRecord, - Content, FrameMax)), - ok. - -port_cmd(Sock, Data) -> - try rabbit_net:port_command(Sock, Data) - catch error:Error -> exit({writer, send_failed, Error}) - end. diff --git a/src/random_distributions.erl b/src/random_distributions.erl deleted file mode 100644 index dfcdc834..00000000 --- a/src/random_distributions.erl +++ /dev/null @@ -1,38 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(random_distributions). - --export([geometric/1]). - -geometric(P) when 0.0 < P andalso P < 1.0 -> - U = 1.0 - random:uniform(), - rabbit_misc:ceil(math:log(U) / math:log(1.0 - P)). diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl deleted file mode 100644 index bc742561..00000000 --- a/src/tcp_acceptor.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(tcp_acceptor). - --behaviour(gen_server). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {callback, sock, ref}). - -%%-------------------------------------------------------------------- - -start_link(Callback, LSock) -> - gen_server:start_link(?MODULE, {Callback, LSock}, []). - -%%-------------------------------------------------------------------- - -init({Callback, LSock}) -> - case prim_inet:async_accept(LSock, -1) of - {ok, Ref} -> {ok, #state{callback=Callback, sock=LSock, ref=Ref}}; - Error -> {stop, {cannot_accept, Error}} - end. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({inet_async, LSock, Ref, {ok, Sock}}, - State = #state{callback={M,F,A}, sock=LSock, ref=Ref}) -> - - %% patch up the socket so it looks like one we got from - %% gen_tcp:accept/1 - {ok, Mod} = inet_db:lookup_socket(LSock), - inet_db:register_socket(Sock, Mod), - - try - %% report - {Address, Port} = inet_op(fun () -> inet:sockname(LSock) end), - {PeerAddress, PeerPort} = inet_op(fun () -> inet:peername(Sock) end), - error_logger:info_msg("accepted TCP connection on ~s:~p from ~s:~p~n", - [inet_parse:ntoa(Address), Port, - inet_parse:ntoa(PeerAddress), PeerPort]), - %% handle - apply(M, F, A ++ [Sock]) - catch {inet_error, Reason} -> - gen_tcp:close(Sock), - error_logger:error_msg("unable to accept TCP connection: ~p~n", - [Reason]) - end, - - %% accept more - case prim_inet:async_accept(LSock, -1) of - {ok, NRef} -> {noreply, State#state{ref=NRef}}; - Error -> {stop, {cannot_accept, Error}, none} - end; -handle_info({inet_async, LSock, Ref, {error, closed}}, - State=#state{sock=LSock, ref=Ref}) -> - %% It would be wrong to attempt to restart the acceptor when we - %% know this will fail. - {stop, normal, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). diff --git a/src/tcp_acceptor_sup.erl b/src/tcp_acceptor_sup.erl deleted file mode 100644 index f2bad5bc..00000000 --- a/src/tcp_acceptor_sup.erl +++ /dev/null @@ -1,46 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(tcp_acceptor_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - -start_link(Name, Callback) -> - supervisor:start_link({local,Name}, ?MODULE, Callback). - -init(Callback) -> - {ok, {{simple_one_for_one, 10, 10}, - [{tcp_acceptor, {tcp_acceptor, start_link, [Callback]}, - transient, brutal_kill, worker, [tcp_acceptor]}]}}. diff --git a/src/tcp_client_sup.erl b/src/tcp_client_sup.erl deleted file mode 100644 index d92066a6..00000000 --- a/src/tcp_client_sup.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(tcp_client_sup). - --behaviour(supervisor). - --export([start_link/1, start_link/2]). - --export([init/1]). - -start_link(Callback) -> - supervisor:start_link(?MODULE, Callback). - -start_link(SupName, Callback) -> - supervisor:start_link(SupName, ?MODULE, Callback). - -init({M,F,A}) -> - {ok, {{simple_one_for_one, 10, 10}, - [{tcp_client, {M,F,A}, - temporary, brutal_kill, worker, [M]}]}}. diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl deleted file mode 100644 index 4a2e149b..00000000 --- a/src/tcp_listener.erl +++ /dev/null @@ -1,98 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(tcp_listener). - --behaviour(gen_server). - --export([start_link/8]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {sock, on_startup, on_shutdown, label}). - -%%-------------------------------------------------------------------- - -start_link(IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label) -> - gen_server:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label}, []). - -%%-------------------------------------------------------------------- - -init({IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - {M,F,A} = OnStartup, OnShutdown, Label}) -> - process_flag(trap_exit, true), - case gen_tcp:listen(Port, SocketOpts ++ [{ip, IPAddress}, - {active, false}]) of - {ok, LSock} -> - lists:foreach(fun (_) -> - {ok, _APid} = supervisor:start_child( - AcceptorSup, [LSock]) - end, - lists:duplicate(ConcurrentAcceptorCount, dummy)), - {ok, {LIPAddress, LPort}} = inet:sockname(LSock), - error_logger:info_msg("started ~s on ~s:~p~n", - [Label, inet_parse:ntoa(LIPAddress), LPort]), - apply(M, F, A ++ [IPAddress, Port]), - {ok, #state{sock = LSock, - on_startup = OnStartup, on_shutdown = OnShutdown, - label = Label}}; - {error, Reason} -> - error_logger:error_msg( - "failed to start ~s on ~s:~p - ~p~n", - [Label, inet_parse:ntoa(IPAddress), Port, Reason]), - {stop, {cannot_listen, IPAddress, Port, Reason}} - end. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state{sock=LSock, on_shutdown = {M,F,A}, label=Label}) -> - {ok, {IPAddress, Port}} = inet:sockname(LSock), - gen_tcp:close(LSock), - error_logger:info_msg("stopped ~s on ~s:~p~n", - [Label, inet_parse:ntoa(IPAddress), Port]), - apply(M, F, A ++ [IPAddress, Port]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl deleted file mode 100644 index d6bbac08..00000000 --- a/src/tcp_listener_sup.erl +++ /dev/null @@ -1,66 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(tcp_listener_sup). - --behaviour(supervisor). - --export([start_link/7, start_link/8]). - --export([init/1]). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, Label) -> - start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, 1, Label). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label) -> - supervisor:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}). - -init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}) -> - %% This is gross. The tcp_listener needs to know about the - %% tcp_acceptor_sup, and the only way I can think of accomplishing - %% that without jumping through hoops is to register the - %% tcp_acceptor_sup. - Name = rabbit_misc:tcp_name(tcp_acceptor_sup, IPAddress, Port), - {ok, {{one_for_all, 10, 10}, - [{tcp_acceptor_sup, {tcp_acceptor_sup, start_link, - [Name, AcceptCallback]}, - transient, infinity, supervisor, [tcp_acceptor_sup]}, - {tcp_listener, {tcp_listener, start_link, - [IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, Name, - OnStartup, OnShutdown, Label]}, - transient, 100, worker, [tcp_listener]}]}}. diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl deleted file mode 100644 index 495eff69..00000000 --- a/src/vm_memory_monitor.erl +++ /dev/null @@ -1,337 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2009 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2009 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - -%% In practice Erlang shouldn't be allowed to grow to more than a half -%% of available memory. The pessimistic scenario is when the Erlang VM -%% has a single process that's consuming all memory. In such a case, -%% during garbage collection, Erlang tries to allocate a huge chunk of -%% continuous memory, which can result in a crash or heavy swapping. -%% -%% This module tries to warn Rabbit before such situations occur, so -%% that it has a higher chance to avoid running out of memory. -%% -%% This code depends on Erlang os_mon application. - --module(vm_memory_monitor). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0, get_total_memory/0, - get_check_interval/0, set_check_interval/1, - get_vm_memory_high_watermark/0, set_vm_memory_high_watermark/1, - get_memory_limit/0]). - - --define(SERVER, ?MODULE). --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%% For an unknown OS, we assume that we have 1GB of memory. It'll be -%% wrong. Scale by vm_memory_high_watermark in configuration to get a -%% sensible value. --define(MEMORY_SIZE_FOR_UNKNOWN_OS, 1073741824). - --record(state, {total_memory, - memory_limit, - timeout, - timer, - alarmed - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (float()) -> - ('ignore' | {'error', any()} | {'ok', pid()})). --spec(update/0 :: () -> 'ok'). --spec(get_total_memory/0 :: () -> (non_neg_integer() | 'unknown')). --spec(get_memory_limit/0 :: () -> (non_neg_integer() | 'undefined')). --spec(get_check_interval/0 :: () -> non_neg_integer()). --spec(set_check_interval/1 :: (non_neg_integer()) -> 'ok'). --spec(get_vm_memory_high_watermark/0 :: () -> float()). --spec(set_vm_memory_high_watermark/1 :: (float()) -> 'ok'). - --endif. - - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -update() -> - gen_server:cast(?SERVER, update). - -get_total_memory() -> - get_total_memory(os:type()). - -get_check_interval() -> - gen_server:call(?MODULE, get_check_interval). - -set_check_interval(Fraction) -> - gen_server:call(?MODULE, {set_check_interval, Fraction}). - -get_vm_memory_high_watermark() -> - gen_server:call(?MODULE, get_vm_memory_high_watermark). - -set_vm_memory_high_watermark(Fraction) -> - gen_server:call(?MODULE, {set_vm_memory_high_watermark, Fraction}). - -get_memory_limit() -> - try - gen_server2:call(?MODULE, get_memory_limit) - catch - exit:{noproc, _} -> undefined - end. - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -init([MemFraction]) -> - TotalMemory = - case get_total_memory() of - unknown -> - error_logger:warning_msg( - "Unknown total memory size for your OS ~p. " - "Assuming memory size is ~pMB.~n", - [os:type(), trunc(?MEMORY_SIZE_FOR_UNKNOWN_OS/1048576)]), - ?MEMORY_SIZE_FOR_UNKNOWN_OS; - M -> M - end, - MemLimit = get_mem_limit(MemFraction, TotalMemory), - error_logger:info_msg("Memory limit set to ~pMB.~n", - [trunc(MemLimit/1048576)]), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - State = #state { total_memory = TotalMemory, - memory_limit = MemLimit, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - alarmed = false}, - {ok, internal_update(State)}. - -handle_call(get_vm_memory_high_watermark, _From, State) -> - {reply, State#state.memory_limit / State#state.total_memory, State}; - -handle_call({set_vm_memory_high_watermark, MemFraction}, _From, State) -> - MemLimit = get_mem_limit(MemFraction, State#state.total_memory), - error_logger:info_msg("Memory alarm changed to ~p, ~p bytes.~n", - [MemFraction, MemLimit]), - {reply, ok, State#state{memory_limit = MemLimit}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_limit, _From, State) -> - {reply, State#state.memory_limit, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% Server Internals -%%---------------------------------------------------------------------------- - -internal_update(State = #state { memory_limit = MemLimit, - alarmed = Alarmed}) -> - MemUsed = erlang:memory(total), - NewAlarmed = MemUsed > MemLimit, - case {Alarmed, NewAlarmed} of - {false, true} -> - emit_update_info(set, MemUsed, MemLimit), - alarm_handler:set_alarm({vm_memory_high_watermark, []}); - {true, false} -> - emit_update_info(clear, MemUsed, MemLimit), - alarm_handler:clear_alarm(vm_memory_high_watermark); - _ -> - ok - end, - State #state {alarmed = NewAlarmed}. - -emit_update_info(State, MemUsed, MemLimit) -> - error_logger:info_msg( - "vm_memory_high_watermark ~p. Memory used:~p allowed:~p~n", - [State, MemUsed, MemLimit]). - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% On a 32-bit machine, if you're using more than 2 gigs of RAM you're -%% in big trouble anyway. -get_vm_limit() -> - case erlang:system_info(wordsize) of - 4 -> 4294967296; %% 4 GB for 32 bits 2^32 - 8 -> 281474976710656 %% 256 TB for 64 bits 2^48 - %%http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_details - end. - -get_mem_limit(MemFraction, TotalMemory) -> - lists:min([trunc(TotalMemory * MemFraction), get_vm_limit()]). - -%%---------------------------------------------------------------------------- -%% Internal Helpers -%%---------------------------------------------------------------------------- -cmd(Command) -> - Exec = hd(string:tokens(Command, " ")), - case os:find_executable(Exec) of - false -> throw({command_not_found, Exec}); - _ -> os:cmd(Command) - end. - -%% get_total_memory(OS) -> Total -%% Windows and Freebsd code based on: memsup:get_memory_usage/1 -%% Original code was part of OTP and released under "Erlang Public License". - -get_total_memory({unix,darwin}) -> - File = cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_mach/1, Lines)), - [PageSize, Inactive, Active, Free, Wired] = - [dict:fetch(Key, Dict) || - Key <- [page_size, 'Pages inactive', 'Pages active', 'Pages free', - 'Pages wired down']], - PageSize * (Inactive + Active + Free + Wired); - -get_total_memory({unix,freebsd}) -> - PageSize = freebsd_sysctl("vm.stats.vm.v_page_size"), - PageCount = freebsd_sysctl("vm.stats.vm.v_page_count"), - PageCount * PageSize; - -get_total_memory({win32,_OSname}) -> - [Result|_] = os_mon_sysinfo:get_mem_info(), - {ok, [_MemLoad, TotPhys, _AvailPhys, - _TotPage, _AvailPage, _TotV, _AvailV], _RestStr} = - io_lib:fread("~d~d~d~d~d~d~d", Result), - TotPhys; - -get_total_memory({unix, linux}) -> - File = read_proc_file("/proc/meminfo"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_linux/1, Lines)), - dict:fetch('MemTotal', Dict); - -get_total_memory({unix, sunos}) -> - File = cmd("/usr/sbin/prtconf"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_sunos/1, Lines)), - dict:fetch('Memory size', Dict); - -get_total_memory(_OsType) -> - unknown. - -%% A line looks like "Foo bar: 123456." -parse_line_mach(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. - -%% A line looks like "FooBar: 123456 kB" -parse_line_linux(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. - -%% A line looks like "Memory size: 1024 Megabytes" -parse_line_sunos(Line) -> - case string:tokens(Line, ":") of - [Name, RHS | _Rest] -> - [Value1 | UnitsRest] = string:tokens(RHS, " "), - Value2 = case UnitsRest of - ["Gigabytes"] -> - list_to_integer(Value1) * 1024 * 1024 * 1024; - ["Megabytes"] -> - list_to_integer(Value1) * 1024 * 1024; - ["Kilobytes"] -> - list_to_integer(Value1) * 1024; - _ -> - Value1 ++ UnitsRest %% no known units - end, - {list_to_atom(Name), Value2}; - [Name] -> {list_to_atom(Name), none} - end. - -freebsd_sysctl(Def) -> - list_to_integer(cmd("/sbin/sysctl -n " ++ Def) -- "\n"). - -%% file:read_file does not work on files in /proc as it seems to get -%% the size of the file first and then read that many bytes. But files -%% in /proc always have length 0, we just have to read until we get -%% eof. -read_proc_file(File) -> - {ok, IoDevice} = file:open(File, [read, raw]), - Res = read_proc_file(IoDevice, []), - file:close(IoDevice), - lists:flatten(lists:reverse(Res)). - --define(BUFFER_SIZE, 1024). -read_proc_file(IoDevice, Acc) -> - case file:read(IoDevice, ?BUFFER_SIZE) of - {ok, Res} -> read_proc_file(IoDevice, [Res | Acc]); - eof -> Acc - end. -- cgit v1.2.1 From c84a88433bff4fbfb4f1590cde8141d7bc96df5a Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Tue, 9 Feb 2010 21:29:56 +0000 Subject: removing files in order to keep junk clean --- .hgignore | 26 ----- generate_deps | 52 --------- packaging/macports/Makefile | 59 ---------- packaging/macports/Portfile.in | 122 -------------------- .../patch-org.macports.rabbitmq-server.plist.diff | 10 -- src/rabbit_alarm_flap_limiter.erl | 124 --------------------- 6 files changed, 393 deletions(-) delete mode 100644 .hgignore delete mode 100644 generate_deps delete mode 100644 packaging/macports/Makefile delete mode 100644 packaging/macports/Portfile.in delete mode 100644 packaging/macports/patch-org.macports.rabbitmq-server.plist.diff delete mode 100644 src/rabbit_alarm_flap_limiter.erl diff --git a/.hgignore b/.hgignore deleted file mode 100644 index 04e44aac..00000000 --- a/.hgignore +++ /dev/null @@ -1,26 +0,0 @@ -syntax: glob -*.beam -*~ -*.swp -*.patch -erl_crash.dump -deps.mk - -syntax: regexp -^cover/ -^dist/ -^include/rabbit_framing\.hrl$ -^src/rabbit_framing\.erl$ -^rabbit\.plt$ -^ebin/rabbit\.(app|rel|boot|script)$ -^plugins/ -^priv/plugins/ - -^packaging/RPMS/Fedora/(BUILD|RPMS|SOURCES|SPECS|SRPMS)$ -^packaging/debs/Debian/rabbitmq-server_.*\.(dsc|(diff|tar)\.gz|deb|changes)$ -^packaging/debs/apt-repository/debian$ -^packaging/macports/macports$ -^packaging/generic-unix/rabbitmq-server-generic-unix-.*\.tar\.gz$ -^packaging/windows/rabbitmq-server-windows-.*\.zip$ - -^docs/.*\.[15]\.gz$ diff --git a/generate_deps b/generate_deps deleted file mode 100644 index 916006d1..00000000 --- a/generate_deps +++ /dev/null @@ -1,52 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- --mode(compile). - -main([IncludeDir, ErlDir, EbinDir, TargetFile]) -> - ErlDirContents = filelib:wildcard("*.erl", ErlDir), - ErlFiles = [filename:join(ErlDir, FileName) || FileName <- ErlDirContents], - Modules = sets:from_list( - [list_to_atom(filename:basename(FileName, ".erl")) || - FileName <- ErlDirContents]), - Headers = sets:from_list( - [filename:join(IncludeDir, FileName) || - FileName <- filelib:wildcard("*.hrl", IncludeDir)]), - Deps = lists:foldl( - fun (Path, Deps1) -> - dict:store(Path, detect_deps(IncludeDir, EbinDir, - Modules, Headers, Path), - Deps1) - end, dict:new(), ErlFiles), - {ok, Hdl} = file:open(TargetFile, [write, delayed_write]), - dict:fold( - fun (_Path, [], ok) -> - ok; - (Path, Dep, ok) -> - Module = filename:basename(Path, ".erl"), - ok = file:write(Hdl, [EbinDir, "/", Module, ".beam:"]), - ok = sets:fold(fun (E, ok) -> file:write(Hdl, [" ", E]) end, - ok, Dep), - file:write(Hdl, [" ", ErlDir, "/", Module, ".erl\n"]) - end, ok, Deps), - ok = file:write(Hdl, [TargetFile, ": ", escript:script_name(), "\n"]), - ok = file:sync(Hdl), - ok = file:close(Hdl). - -detect_deps(IncludeDir, EbinDir, Modules, Headers, Path) -> - {ok, Forms} = epp:parse_file(Path, [IncludeDir], [{use_specs, true}]), - lists:foldl( - fun ({attribute, _LineNumber, behaviour, Behaviour}, Deps) -> - case sets:is_element(Behaviour, Modules) of - true -> sets:add_element( - [EbinDir, "/", atom_to_list(Behaviour), ".beam"], - Deps); - false -> Deps - end; - ({attribute, _LineNumber, file, {FileName, _LineNumber1}}, Deps) -> - case sets:is_element(FileName, Headers) of - true -> sets:add_element(FileName, Deps); - false -> Deps - end; - (_Form, Deps) -> - Deps - end, sets:new(), Forms). diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile deleted file mode 100644 index 4db305eb..00000000 --- a/packaging/macports/Makefile +++ /dev/null @@ -1,59 +0,0 @@ -TARBALL_DIR=../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -# The URL at which things really get deployed -REAL_WEB_URL=http://www.rabbitmq.com/ - -# The user@host for an OSX machine with macports installed, which is -# used to generate the macports index files. That step will be -# skipped if this variable is not set. If you do set it, you might -# also want to set SSH_OPTS, which allows adding ssh options, e.g. to -# specify a key that will get into the OSX machine without a -# passphrase. -MACPORTS_USERHOST= - -MACPORTS_DIR=macports -DEST=$(MACPORTS_DIR)/net/rabbitmq-server - -all: macports - -dirs: - mkdir -p $(DEST)/files - -$(DEST)/Portfile: Portfile.in - for algo in md5 sha1 rmd160 ; do \ - checksum=$$(openssl $$algo $(TARBALL_DIR)/$(TARBALL) | awk '{print $$NF}') ; \ - echo "s|@$$algo@|$$checksum|g" ; \ - done >checksums.sed - sed -e "s|@VERSION@|$(VERSION)|g;s|@BASE_URL@|$(REAL_WEB_URL)|g" \ - -f checksums.sed <$^ >$@ - rm checksums.sed - -macports: dirs $(DEST)/Portfile - for f in rabbitmq-asroot-script-wrapper rabbitmq-script-wrapper ; do \ - cp $(COMMON_DIR)/$$f $(DEST)/files ; \ - done - sed -i -e 's|@SU_RABBITMQ_SH_C@|sudo -u rabbitmq -H /bin/sh -c|' \ - $(DEST)/files/rabbitmq-script-wrapper - cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files - -# This target ssh's into the OSX host in order to finalize the -# macports repo -macports_index: - if [ -n "$(MACPORTS_USERHOST)" ] ; then \ - tar cf - -C $(MACPORTS_DIR) . | ssh $(SSH_OPTS) lshift@macrabbit ' \ - d="/tmp/mkportindex.$$$$" ; \ - mkdir $$d \ - && cd $$d \ - && tar xf - \ - && /opt/local/bin/portindex -a -o . >/dev/null \ - && tar cf - . \ - && cd \ - && rm -rf $$d' \ - | tar xf - -C $(MACPORTS_DIR) ; \ - fi - -clean: - rm -rf $(DEST) checksums.sed diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in deleted file mode 100644 index e1f58212..00000000 --- a/packaging/macports/Portfile.in +++ /dev/null @@ -1,122 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version @VERSION@ -revision 1 -categories net -maintainers rabbitmq.com:tonyg -platforms darwin -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage @BASE_URL@ -master_sites @BASE_URL@releases/rabbitmq-server/v${version}/ - -checksums \ - md5 @md5@ \ - sha1 @sha1@ \ - rmd160 @rmd160@ - -depends_build port:erlang -depends_run port:erlang - -platform darwin 7 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -platform darwin 8 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -platform darwin 9 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -# no need for simplejson on Snow Leopard or higher - - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin -set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin - -use_configure no - -use_parallel_build yes - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq.conf):${prefix}\\1:g" \ - ${realsbin}/rabbitmq-env - reinplace -E "s:(CLUSTER_CONFIG_FILE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(LOG_BASE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(MNESIA_BASE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(PIDS_FILE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-multi - xinstall -m 555 ${filespath}/rabbitmq-asroot-script-wrapper \ - ${wrappersbin}/rabbitmq-activate-plugins - - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-activate-plugins - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-activate-plugins - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmqctl - file copy ${wrappersbin}/rabbitmq-activate-plugins ${wrappersbin}/rabbitmq-deactivate-plugins -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff deleted file mode 100644 index 45b49496..00000000 --- a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff +++ /dev/null @@ -1,10 +0,0 @@ ---- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 -+++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 -@@ -22,6 +22,7 @@ - ; - --pid=none - -+UserNamerabbitmq - Debug - Disabled - OnDemand diff --git a/src/rabbit_alarm_flap_limiter.erl b/src/rabbit_alarm_flap_limiter.erl deleted file mode 100644 index 70e45d66..00000000 --- a/src/rabbit_alarm_flap_limiter.erl +++ /dev/null @@ -1,124 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_alarm_flap_limiter). - --export([init/0, set/1, clear/1]). - --define(MAX_INTENSITY, 2). %% 2 set->clear transitions --define(MAX_PERIOD, 10). %% allowed within 10 seconds - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(state() :: any()). --spec(init/0 :: () -> state()). --spec(set/1 :: (state()) -> {boolean(), state()}). --spec(clear/1 :: (state()) -> {boolean(), state()}). - --endif. - -%%---------------------------------------------------------------------------- - -init() -> - {false, []}. - -%% already flapping too much, locked up -set(State = {true, _Restarts}) -> {false, State}; -set(State) -> {true, State}. - -clear({_Locked, Restarts}) -> - case add_transition(Restarts) of - {true, Restarts1} -> {true, {false, Restarts1}}; - {false, _Restarts1} -> {false, {true, Restarts}} - end. - -%%---------------------------------------------------------------------------- -%% The following code is lifted from supervisor.erl in Erlang/OTP -%% R13B03 and lightly edited. The following license applies: - -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% - -add_transition(Restarts) -> - Now = erlang:now(), - Restarts1 = add_transition([Now|Restarts], Now, ?MAX_PERIOD), - case length(Restarts1) of - CurI when CurI =< ?MAX_INTENSITY -> {true, Restarts1}; - _ -> {false, Restarts1} - end. - -add_transition([R|Restarts], Now, Period) -> - case inPeriod(R, Now, Period) of - true -> - [R|add_transition(Restarts, Now, Period)]; - _ -> - [] - end; -add_transition([], _, _) -> - []. - -inPeriod(Time, Now, Period) -> - case difference(Time, Now) of - T when T > Period -> - false; - _ -> - true - end. - -%% -%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored) -%% Calculate the time elapsed in seconds between two timestamps. -%% If MegaSecs is equal just subtract Secs. -%% Else calculate the Mega difference and add the Secs difference, -%% note that Secs difference can be negative, e.g. -%% {827, 999999, 676} diff {828, 1, 653753} == > 2 secs. -%% -difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM -> - ((CurM - TimeM) * 1000000) + (CurS - TimeS); -difference({_, TimeS, _}, {_, CurS, _}) -> - CurS - TimeS. -- cgit v1.2.1 From 357f05dff815e0905b8e937cec403e53ff7215f3 Mon Sep 17 00:00:00 2001 From: Alexander Schmolck Date: Wed, 3 Mar 2010 09:56:44 +0000 Subject: Send channel.close_ok on close, even if already in closing state. --- src/rabbit_reader.erl | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 1a4830e1..17574c86 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -458,12 +458,23 @@ handle_frame(Type, Channel, Payload, State) -> ok = rabbit_framing_channel:process(ChPid, AnalyzedFrame), State; closing -> - %% According to the spec, after sending a - %% channel.close we must ignore all frames except - %% channel.close_ok. + %% According to the spec, after sending a channel.close we + %% must ignore all frames except channel.close_ok, and + %% (from 0.9.1 onwards) channel.close (this was introduced + %% to avoid a race when both client and server send a + %% close at about the same time). case AnalyzedFrame of {method, 'channel.close_ok', _} -> erase({channel, Channel}); + {method, 'channel.close', _} -> + %% This should only occur *very* rarely. So rather + %% than complicating the channel closing logic we + %% spin up an new writer; send a close_ok and take + %% it down again. + #v1{sock = Sock, connection = #connection{frame_max = FrameMax}} = State, + WriterPid = rabbit_writer:start(Sock, Channel, FrameMax), + ok = rabbit_writer:send_command(WriterPid, #'channel.close_ok'{}), + ok = rabbit_writer:shutdown(WriterPid); _ -> ok end, State; -- cgit v1.2.1 From df7041afe521de04f2956e5970f3c81799cec517 Mon Sep 17 00:00:00 2001 From: Alexander Schmolck Date: Wed, 3 Mar 2010 11:12:10 +0000 Subject: Simplified channel.close_ok sending in closing state. Still breaks rabbit-java-client tests, but that's prob. at least partly the client. --- src/rabbit_reader.erl | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 17574c86..df57834a 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -467,14 +467,8 @@ handle_frame(Type, Channel, Payload, State) -> {method, 'channel.close_ok', _} -> erase({channel, Channel}); {method, 'channel.close', _} -> - %% This should only occur *very* rarely. So rather - %% than complicating the channel closing logic we - %% spin up an new writer; send a close_ok and take - %% it down again. - #v1{sock = Sock, connection = #connection{frame_max = FrameMax}} = State, - WriterPid = rabbit_writer:start(Sock, Channel, FrameMax), - ok = rabbit_writer:send_command(WriterPid, #'channel.close_ok'{}), - ok = rabbit_writer:shutdown(WriterPid); + ok = rabbit_writer:internal_send_command( + State#v1.sock, Channel, #'channel.close_ok'{}); _ -> ok end, State; -- cgit v1.2.1 From 78042cdc6f9f78599345f3666ee6c711c65f42b8 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 17 Mar 2010 13:56:03 +0000 Subject: Implementation of weighted bucket approach taking into account priority and queue length. --- src/priority_queue.erl | 115 ++++++++++++++++++++++++++++++++++++------------- 1 file changed, 84 insertions(+), 31 deletions(-) diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 1e481ca7..81a2a404 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -56,7 +56,7 @@ -module(priority_queue). -export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). + out/1, pout/1, join/2]). %%---------------------------------------------------------------------------- @@ -64,7 +64,8 @@ -type(priority() :: integer()). -type(squeue() :: {queue, [any()], [any()]}). --type(pqueue() :: squeue() | {pqueue, [{priority(), squeue()}]}). +-type(pqueue() :: squeue() | + {pqueue, [{priority(), non_neg_integer(), squeue()}]}). -spec(new/0 :: () -> pqueue()). -spec(is_queue/1 :: (any()) -> boolean()). @@ -74,6 +75,7 @@ -spec(in/2 :: (any(), pqueue()) -> pqueue()). -spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). -spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). +-spec(pout/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). -spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). -endif. @@ -86,8 +88,10 @@ new() -> is_queue({queue, R, F}) when is_list(R), is_list(F) -> true; is_queue({pqueue, Queues}) when is_list(Queues) -> - lists:all(fun ({P, Q}) -> is_integer(P) andalso is_queue(Q) end, - Queues); + lists:all(fun ({P, Len, Q}) -> + is_integer(P) andalso is_queue(Q) andalso is_integer(Len) + andalso Len >= 0 + end, Queues); is_queue(_) -> false. @@ -99,12 +103,12 @@ is_empty(_) -> len({queue, R, F}) when is_list(R), is_list(F) -> length(R) + length(F); len({pqueue, Queues}) -> - lists:sum([len(Q) || {_, Q} <- Queues]). + lists:sum([Len || {_, Len, _} <- Queues]). to_list({queue, In, Out}) when is_list(In), is_list(Out) -> [{0, V} || V <- Out ++ lists:reverse(In, [])]; to_list({pqueue, Queues}) -> - [{-P, V} || {P, Q} <- Queues, {0, V} <- to_list(Q)]. + [{-P, V} || {P, _Len, Q} <- Queues, {0, V} <- to_list(Q)]. in(Item, Q) -> in(Item, 0, Q). @@ -116,14 +120,14 @@ in(X, 0, {queue, In, Out}) when is_list(In), is_list(Out) -> in(X, Priority, _Q = {queue, [], []}) -> in(X, Priority, {pqueue, []}); in(X, Priority, Q = {queue, _, _}) -> - in(X, Priority, {pqueue, [{0, Q}]}); + in(X, Priority, {pqueue, [{0, len(Q), Q}]}); in(X, Priority, {pqueue, Queues}) -> P = -Priority, {pqueue, case lists:keysearch(P, 1, Queues) of - {value, {_, Q}} -> - lists:keyreplace(P, 1, Queues, {P, in(X, Q)}); + {value, {_, Len, Q}} -> + lists:keyreplace(P, 1, Queues, {P, Len + 1, in(X, Q)}); false -> - lists:keysort(1, [{P, {queue, [X], []}} | Queues]) + lists:keysort(1, [{P, 1, {queue, [X], []}} | Queues]) end}. out({queue, [], []} = Q) -> @@ -137,18 +141,59 @@ out({queue, In, [V]}) when is_list(In) -> {{value,V}, r2f(In)}; out({queue, In,[V|Out]}) when is_list(In) -> {{value, V}, {queue, In, Out}}; -out({pqueue, [{P, Q} | Queues]}) -> +out({pqueue, [{P, Len, Q} | Queues]}) -> {R, Q1} = out(Q), NewQ = case is_empty(Q1) of - true -> case Queues of - [] -> {queue, [], []}; - [{0, OnlyQ}] -> OnlyQ; - [_|_] -> {pqueue, Queues} - end; - false -> {pqueue, [{P, Q1} | Queues]} + true -> case Queues of + [] -> {queue, [], []}; + [{0, _Len, OnlyQ}] -> OnlyQ; + [_|_] -> {pqueue, Queues} + end; + false -> {pqueue, [{P, Len - 1, Q1} | Queues]} end, {R, NewQ}. +pout({queue, _, _} = Q) -> + out(Q); +pout({pqueue, [{P, Len, Q}]}) -> + {R, Q1} = out(Q), + NewQ = case is_empty(Q1) of + true -> {queue, [], []}; + false -> {pqueue, [{P, Len - 1, Q1}]} + end, + {R, NewQ}; +pout({pqueue, Queues}) -> + {Total, Weights, _, _} = + lists:foldr(fun ({P, Len, _Q}, {T, Ws, NP, OldP}) -> + NP1 = NP + case OldP of + undefined -> 1; + _ -> OldP - P + end, + W = Len * NP1, + {T + W, [W | Ws], NP1, P} + end, {0, [], 0, undefined}, Queues), + {LHS, [{P, Len, Q} | RHS]} = + pout(random:uniform(Total) - 1, Weights, [], Queues), + {R, Q1} = out(Q), + NewQ = case {LHS, is_empty(Q1), RHS} of + {[], true, []} -> + {queue, [], []}; + {[], true, [{0, _Len, OnlyQ}]} -> + OnlyQ; + {[{0, _Len, OnlyQ}], true, []} -> + OnlyQ; + {_, true, _} -> + {pqueue, LHS ++ RHS}; + {_, false, _} -> + {pqueue, LHS ++ [{P, Len - 1, Q1} | RHS]} + end, + {R, NewQ}. + +pout(ToSkip, [W | _Ws], Skipped, Queues) when ToSkip < W -> + {lists:reverse(Skipped), Queues}; +pout(ToSkip, [W | Ws], Skipped, [Q | Queues]) -> + pout(ToSkip - W, Ws, [Q | Skipped], Queues). + join(A, {queue, [], []}) -> A; join({queue, [], []}, B) -> @@ -156,19 +201,27 @@ join({queue, [], []}, B) -> join({queue, AIn, AOut}, {queue, BIn, BOut}) -> {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), + {Pre, Post} = lists:splitwith(fun ({P, _, _}) -> P < 0 end, BPQ), + ALen = len(A), Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] + [] -> + [ {0, ALen, A} ]; + [ {0, Len, ZeroQueue} | Rest ] -> + [ {0, ALen + Len, join(A, ZeroQueue)} | Rest ]; + _ -> + [ {0, ALen, A} | Post ] end, {pqueue, Pre ++ Post1}; join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), + {Pre, Post} = lists:splitwith(fun ({P, _, _}) -> P < 0 end, APQ), + BLen = len(B), Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] + [] -> + [ {0, BLen, B} ]; + [{0, Len, ZeroQueue} | Rest] -> + [ {0, BLen + Len, join(ZeroQueue, B)} | Rest ]; + _ -> + [ {0, BLen, B} | Post ] end, {pqueue, Pre ++ Post1}; join({pqueue, APQ}, {pqueue, BPQ}) -> @@ -178,12 +231,12 @@ merge([], BPQ, Acc) -> lists:reverse(Acc, BPQ); merge(APQ, [], Acc) -> lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). +merge([{P, ALen, A}|As], [{P, BLen, B}|Bs], Acc) -> + merge(As, Bs, [ {P, ALen + BLen, join(A, B)} | Acc ]); +merge([{PA, ALen, A}|As], Bs = [{PB, _, _}|_], Acc) when PA < PB -> + merge(As, Bs, [ {PA, ALen, A} | Acc ]); +merge(As = [{_, _, _}|_], [{PB, BLen, B}|Bs], Acc) -> + merge(As, Bs, [ {PB, BLen, B} | Acc ]). r2f([]) -> {queue, [], []}; r2f([_] = R) -> {queue, [], R}; -- cgit v1.2.1 From f0f01ce181f3a61d75dcc200dfff360186c049c9 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 17 Mar 2010 15:31:58 +0000 Subject: Switch gen_server2 to use pout --- src/gen_server2.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/gen_server2.erl b/src/gen_server2.erl index c33582e3..5268b754 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -480,7 +480,7 @@ drain(Queue) -> end. process_next_msg(Parent, Name, State, Mod, Time, TimeoutState, Queue, Debug) -> - case priority_queue:out(Queue) of + case priority_queue:pout(Queue) of {{value, Msg}, Queue1} -> process_msg(Parent, Name, State, Mod, Time, TimeoutState, Queue1, Debug, Msg); -- cgit v1.2.1 From fe5da85065f7740b36e966ca3128afc49bfec591 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 17 Mar 2010 17:36:25 +0000 Subject: Change of algorithm. Previously, I was normalising all the priorities to work around having +ve and -ve priorities being a problem. In testing, this turned out to be a problem because if you had a queue at p8 and a queue at p9 only, the p9 was twice as likely (assuming same length) to be selected as the p8. This is non ideal. Thus we now, for positive priorities, just add 1 (so 0 => 1, 1 => 2 etc) prior to scaling by length; and for negative priorities we do 1 / ((-P)+1) (so -1 => 1/2, -2 => 1/3) [actually, these are both from the logical api pov as the priorities are held inverted within]. Anyway, the conclusion is now that the weights is really sensibly based on the distance from 0, and testing shows this works very well. --- src/priority_queue.erl | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 81a2a404..0110077c 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -163,17 +163,16 @@ pout({pqueue, [{P, Len, Q}]}) -> end, {R, NewQ}; pout({pqueue, Queues}) -> - {Total, Weights, _, _} = - lists:foldr(fun ({P, Len, _Q}, {T, Ws, NP, OldP}) -> - NP1 = NP + case OldP of - undefined -> 1; - _ -> OldP - P - end, - W = Len * NP1, - {T + W, [W | Ws], NP1, P} - end, {0, [], 0, undefined}, Queues), + {Total, Weights} = + lists:foldr(fun ({P, Len, _Q}, {T, Ws}) -> + W = Len * case P < 0 of + true -> 1 - P; + false -> 1 / (P + 1) + end, + {T + W, [W | Ws]} + end, {0, []}, Queues), {LHS, [{P, Len, Q} | RHS]} = - pout(random:uniform(Total) - 1, Weights, [], Queues), + pout(random:uniform(trunc(Total)) - 1, Weights, [], Queues), {R, Q1} = out(Q), NewQ = case {LHS, is_empty(Q1), RHS} of {[], true, []} -> -- cgit v1.2.1 From d33a5b3392fa4cf960372b2eb98c63e66bc309b9 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 17 Mar 2010 17:44:03 +0000 Subject: Remove impossible case --- src/priority_queue.erl | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/priority_queue.erl b/src/priority_queue.erl index 0110077c..1dd0264f 100644 --- a/src/priority_queue.erl +++ b/src/priority_queue.erl @@ -175,8 +175,6 @@ pout({pqueue, Queues}) -> pout(random:uniform(trunc(Total)) - 1, Weights, [], Queues), {R, Q1} = out(Q), NewQ = case {LHS, is_empty(Q1), RHS} of - {[], true, []} -> - {queue, [], []}; {[], true, [{0, _Len, OnlyQ}]} -> OnlyQ; {[{0, _Len, OnlyQ}], true, []} -> -- cgit v1.2.1 From 1900409fc553aa6a112ea418adeb8ca731ac552e Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Fri, 30 Apr 2010 15:14:39 +1200 Subject: Initial experiment, using Emakefile --- Emakefile | 9 ++ Makefile | 45 ++------ generate_deps | 54 ---------- make.erl | 340 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 360 insertions(+), 88 deletions(-) create mode 100644 Emakefile delete mode 100644 generate_deps create mode 100644 make.erl diff --git a/Emakefile b/Emakefile new file mode 100644 index 00000000..a391c7e7 --- /dev/null +++ b/Emakefile @@ -0,0 +1,9 @@ +% -*- erlang -*- +{'src/gen_server2', [{outdir, "ebin"}]}. +{'src/rabbit_exchange_type', [{outdir, "ebin"}]}. +{'src/*', [{outdir, "ebin"}, + {i, "include"}, + debug_info, + %% {d, debug}, + report, + verbose]}. diff --git a/Makefile b/Makefile index 2b08e071..242307da 100644 --- a/Makefile +++ b/Makefile @@ -1,4 +1,3 @@ - TMPDIR ?= /tmp RABBITMQ_NODENAME ?= rabbit @@ -6,15 +5,13 @@ RABBITMQ_SERVER_START_ARGS ?= RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia RABBITMQ_LOG_BASE ?= $(TMPDIR) -DEPS_FILE=deps.mk SOURCE_DIR=src EBIN_DIR=ebin INCLUDE_DIR=include DOCS_DIR=docs -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing.erl $(USAGES_ERL) BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) -TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) +TARGETS=$(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) $(EBIN_DIR)/rabbit.app WEB_URL=http://stage.rabbitmq.com/ MANPAGES=$(patsubst %.xml, %.gz, $(wildcard $(DOCS_DIR)/*.[0-9].xml)) WEB_MANPAGES=$(patsubst %.xml, %.man.xml, $(wildcard $(DOCS_DIR)/*.[0-9].xml) $(DOCS_DIR)/rabbitmq-service.xml) @@ -72,15 +69,18 @@ endef all: $(TARGETS) -$(DEPS_FILE): $(SOURCES) $(INCLUDES) - escript generate_deps $(INCLUDE_DIR) $(SOURCE_DIR) \$$\(EBIN_DIR\) $@ +$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl make.beam + $(ERL_EBIN) -make + +.NOTPARALLEL: + +## Patched OTP make.erl, checks behaviours as well as includes +make.beam: make.erl + erlc $< $(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app escript generate_app $(EBIN_DIR) $@ < $< -$(EBIN_DIR)/%.beam: - erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< - $(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_PATH) $(PYTHON) codegen.py header $(AMQP_SPEC_JSON_PATH) $@ @@ -108,12 +108,12 @@ $(BASIC_PLT): $(BEAM_TARGETS) fi clean: + rm -f make.beam rm -f $(EBIN_DIR)/*.beam rm -f $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script $(EBIN_DIR)/rabbit.rel rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCE_DIR)/rabbit_framing.erl codegen.pyc rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) rm -f $(RABBIT_PLT) - rm -f $(DEPS_FILE) cleandb: rm -rf $(RABBITMQ_MNESIA_DIR)/* @@ -185,7 +185,7 @@ srcdist: distclean sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ - cp codegen.py Makefile generate_app generate_deps calculate-relative $(TARGET_SRC_DIR) + cp codegen.py Makefile Emakefile generate_app calculate-relative $(TARGET_SRC_DIR) cp -r scripts $(TARGET_SRC_DIR) cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) @@ -257,26 +257,3 @@ install_dirs: mkdir -p $(TARGET_DIR)/sbin $(foreach XML, $(USAGES_XML), $(eval $(call usage_dep, $(XML)))) - -# Note that all targets which depend on clean must have clean in their -# name. Also any target that doesn't depend on clean should not have -# clean in its name, unless you know that you don't need any of the -# automatic dependency generation for that target (eg cleandb). - -# We want to load the dep file if *any* target *doesn't* contain -# "clean" - i.e. if removing all clean-like targets leaves something - -ifeq "$(MAKECMDGOALS)" "" -TESTABLEGOALS:=$(.DEFAULT_GOAL) -else -TESTABLEGOALS:=$(MAKECMDGOALS) -endif - -ifneq "$(strip $(TESTABLEGOALS))" "$(DEPS_FILE)" -ifneq "$(strip $(patsubst clean%,,$(patsubst %clean,,$(TESTABLEGOALS))))" "" -ifeq "$(strip $(wildcard $(DEPS_FILE)))" "" -$(info $(shell $(MAKE) $(DEPS_FILE))) -endif -include $(DEPS_FILE) -endif -endif diff --git a/generate_deps b/generate_deps deleted file mode 100644 index 29587b5a..00000000 --- a/generate_deps +++ /dev/null @@ -1,54 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- --mode(compile). - -main([IncludeDir, ErlDir, EbinDir, TargetFile]) -> - ErlDirContents = filelib:wildcard("*.erl", ErlDir), - ErlFiles = [filename:join(ErlDir, FileName) || FileName <- ErlDirContents], - Modules = sets:from_list( - [list_to_atom(filename:basename(FileName, ".erl")) || - FileName <- ErlDirContents]), - Headers = sets:from_list( - [filename:join(IncludeDir, FileName) || - FileName <- filelib:wildcard("*.hrl", IncludeDir)]), - Deps = lists:foldl( - fun (Path, Deps1) -> - dict:store(Path, detect_deps(IncludeDir, EbinDir, - Modules, Headers, Path), - Deps1) - end, dict:new(), ErlFiles), - {ok, Hdl} = file:open(TargetFile, [write, delayed_write]), - dict:fold( - fun (_Path, [], ok) -> - ok; - (Path, Dep, ok) -> - Module = filename:basename(Path, ".erl"), - ok = file:write(Hdl, [EbinDir, "/", Module, ".beam: ", - Path]), - ok = sets:fold(fun (E, ok) -> file:write(Hdl, [" ", E]) end, - ok, Dep), - file:write(Hdl, ["\n"]) - end, ok, Deps), - ok = file:write(Hdl, [TargetFile, ": ", escript:script_name(), "\n"]), - ok = file:sync(Hdl), - ok = file:close(Hdl). - -detect_deps(IncludeDir, EbinDir, Modules, Headers, Path) -> - {ok, Forms} = epp:parse_file(Path, [IncludeDir], [{use_specs, true}]), - lists:foldl( - fun ({attribute, _LineNumber, Attribute, Behaviour}, Deps) - when Attribute =:= behaviour orelse Attribute =:= behavior -> - case sets:is_element(Behaviour, Modules) of - true -> sets:add_element( - [EbinDir, "/", atom_to_list(Behaviour), ".beam"], - Deps); - false -> Deps - end; - ({attribute, _LineNumber, file, {FileName, _LineNumber1}}, Deps) -> - case sets:is_element(FileName, Headers) of - true -> sets:add_element(FileName, Deps); - false -> Deps - end; - (_Form, Deps) -> - Deps - end, sets:new(), Forms). diff --git a/make.erl b/make.erl new file mode 100644 index 00000000..4c0b87b3 --- /dev/null +++ b/make.erl @@ -0,0 +1,340 @@ +%% This file is a copy of make.erl from the R13B04 Erlang/OTP +%% distribution, with the following modifications: +%% +%% 1) behaviours are checked similarly to included files when deciding +%% whether to recompile a source file or not + +%% All modifications are Copyright (C) 2010 LShift Ltd. + +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1996-2009. All Rights Reserved. +%% +%% The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved online at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% %CopyrightEnd% +%% +%% Purpose : Basic make facility + +%% Compares date stamps of .erl and Object files - recompiles when +%% necessary. +%% Files to be checked are contained in a file 'Emakefile' +%% If Emakefile is missing the current directory is used. +-module(make). + +-export([all/0,all/1,files/1,files/2]). + +-include_lib("kernel/include/file.hrl"). + +-define(MakeOpts,[noexec,load,netload,noload]). + +all() -> + all([]). + +all(Options) -> + {MakeOpts,CompileOpts} = sort_options(Options,[],[]), + case read_emakefile('Emakefile',CompileOpts) of + Files when is_list(Files) -> + do_make_files(Files,MakeOpts); + error -> + error + end. + +files(Fs) -> + files(Fs, []). + +files(Fs0, Options) -> + Fs = [filename:rootname(F,".erl") || F <- Fs0], + {MakeOpts,CompileOpts} = sort_options(Options,[],[]), + case get_opts_from_emakefile(Fs,'Emakefile',CompileOpts) of + Files when is_list(Files) -> + do_make_files(Files,MakeOpts); + error -> error + end. + +do_make_files(Fs, Opts) -> + process(Fs, lists:member(noexec, Opts), load_opt(Opts)). + + +sort_options([H|T],Make,Comp) -> + case lists:member(H,?MakeOpts) of + true -> + sort_options(T,[H|Make],Comp); + false -> + sort_options(T,Make,[H|Comp]) + end; +sort_options([],Make,Comp) -> + {Make,lists:reverse(Comp)}. + +%%% Reads the given Emakefile and returns a list of tuples: {Mods,Opts} +%%% Mods is a list of module names (strings) +%%% Opts is a list of options to be used when compiling Mods +%%% +%%% Emakefile can contain elements like this: +%%% Mod. +%%% {Mod,Opts}. +%%% Mod is a module name which might include '*' as wildcard +%%% or a list of such module names +%%% +%%% These elements are converted to [{ModList,OptList},...] +%%% ModList is a list of modulenames (strings) +read_emakefile(Emakefile,Opts) -> + case file:consult(Emakefile) of + {ok,Emake} -> + transform(Emake,Opts,[],[]); + {error,enoent} -> + %% No Emakefile found - return all modules in current + %% directory and the options given at command line + Mods = [filename:rootname(F) || F <- filelib:wildcard("*.erl")], + [{Mods, Opts}]; + {error,Other} -> + io:format("make: Trouble reading 'Emakefile':~n~p~n",[Other]), + error + end. + +transform([{Mod,ModOpts}|Emake],Opts,Files,Already) -> + case expand(Mod,Already) of + [] -> + transform(Emake,Opts,Files,Already); + Mods -> + transform(Emake,Opts,[{Mods,ModOpts++Opts}|Files],Mods++Already) + end; +transform([Mod|Emake],Opts,Files,Already) -> + case expand(Mod,Already) of + [] -> + transform(Emake,Opts,Files,Already); + Mods -> + transform(Emake,Opts,[{Mods,Opts}|Files],Mods++Already) + end; +transform([],_Opts,Files,_Already) -> + lists:reverse(Files). + +expand(Mod,Already) when is_atom(Mod) -> + expand(atom_to_list(Mod),Already); +expand(Mods,Already) when is_list(Mods), not is_integer(hd(Mods)) -> + lists:concat([expand(Mod,Already) || Mod <- Mods]); +expand(Mod,Already) -> + case lists:member($*,Mod) of + true -> + Fun = fun(F,Acc) -> + M = filename:rootname(F), + case lists:member(M,Already) of + true -> Acc; + false -> [M|Acc] + end + end, + lists:foldl(Fun, [], filelib:wildcard(Mod++".erl")); + false -> + Mod2 = filename:rootname(Mod, ".erl"), + case lists:member(Mod2,Already) of + true -> []; + false -> [Mod2] + end + end. + +%%% Reads the given Emakefile to see if there are any specific compile +%%% options given for the modules. +get_opts_from_emakefile(Mods,Emakefile,Opts) -> + case file:consult(Emakefile) of + {ok,Emake} -> + Modsandopts = transform(Emake,Opts,[],[]), + ModStrings = [coerce_2_list(M) || M <- Mods], + get_opts_from_emakefile2(Modsandopts,ModStrings,Opts,[]); + {error,enoent} -> + [{Mods, Opts}]; + {error,Other} -> + io:format("make: Trouble reading 'Emakefile':~n~p~n",[Other]), + error + end. + +get_opts_from_emakefile2([{MakefileMods,O}|Rest],Mods,Opts,Result) -> + case members(Mods,MakefileMods,[],Mods) of + {[],_} -> + get_opts_from_emakefile2(Rest,Mods,Opts,Result); + {I,RestOfMods} -> + get_opts_from_emakefile2(Rest,RestOfMods,Opts,[{I,O}|Result]) + end; +get_opts_from_emakefile2([],[],_Opts,Result) -> + Result; +get_opts_from_emakefile2([],RestOfMods,Opts,Result) -> + [{RestOfMods,Opts}|Result]. + +members([H|T],MakefileMods,I,Rest) -> + case lists:member(H,MakefileMods) of + true -> + members(T,MakefileMods,[H|I],lists:delete(H,Rest)); + false -> + members(T,MakefileMods,I,Rest) + end; +members([],_MakefileMods,I,Rest) -> + {I,Rest}. + + +%% Any flags that are not recognixed as make flags are passed directly +%% to the compiler. +%% So for example make:all([load,debug_info]) will make everything +%% with the debug_info flag and load it. + +load_opt(Opts) -> + case lists:member(netload,Opts) of + true -> + netload; + false -> + case lists:member(load,Opts) of + true -> + load; + _ -> + noload + end + end. + + +process([{[],_Opts}|Rest], NoExec, Load) -> + process(Rest, NoExec, Load); +process([{[H|T],Opts}|Rest], NoExec, Load) -> + case recompilep(coerce_2_list(H), NoExec, Load, Opts) of + error -> + error; + _ -> + process([{T,Opts}|Rest], NoExec, Load) + end; +process([], _NoExec, _Load) -> + up_to_date. + +recompilep(File, NoExec, Load, Opts) -> + ObjName = lists:append(filename:basename(File), + code:objfile_extension()), + ObjFile = case lists:keysearch(outdir,1,Opts) of + {value,{outdir,OutDir}} -> + filename:join(coerce_2_list(OutDir),ObjName); + false -> + ObjName + end, + case exists(ObjFile) of + true -> + recompilep1(File, NoExec, Load, Opts, ObjFile); + false -> + recompile(File, NoExec, Load, Opts) + end. + +recompilep1(File, NoExec, Load, Opts, ObjFile) -> + {ok, Erl} = file:read_file_info(lists:append(File, ".erl")), + {ok, Obj} = file:read_file_info(ObjFile), + case {readable(Erl), writable(Obj)} of + {true, true} -> + recompilep1(Erl, Obj, File, NoExec, Load, Opts); + _ -> + error + end. + +recompilep1(#file_info{mtime=Te}, + #file_info{mtime=To}, File, NoExec, Load, Opts) when Te>To -> + recompile(File, NoExec, Load, Opts); +recompilep1(_Erl, #file_info{mtime=To}, File, NoExec, Load, Opts) -> + recompile2(To, File, NoExec, Load, Opts). + +%% recompile2(ObjMTime, File, NoExec, Load, Opts) +%% Check if file is of a later date than include files. +recompile2(ObjMTime, File, NoExec, Load, Opts) -> + IncludePath = include_opt(Opts), + case check_includes(lists:append(File, ".erl"), IncludePath, ObjMTime) of + true -> + recompile(File, NoExec, Load, Opts); + false -> + false + end. + +include_opt([{i,Path}|Rest]) -> + [Path|include_opt(Rest)]; +include_opt([_First|Rest]) -> + include_opt(Rest); +include_opt([]) -> + []. + +%% recompile(File, NoExec, Load, Opts) +%% Actually recompile and load the file, depending on the flags. +%% Where load can be netload | load | noload + +recompile(File, true, _Load, _Opts) -> + io:format("Out of date: ~s\n",[File]); +recompile(File, false, noload, Opts) -> + io:format("Recompile: ~s\n",[File]), + compile:file(File, [report_errors, report_warnings, error_summary |Opts]); +recompile(File, false, load, Opts) -> + io:format("Recompile: ~s\n",[File]), + c:c(File, Opts); +recompile(File, false, netload, Opts) -> + io:format("Recompile: ~s\n",[File]), + c:nc(File, Opts). + +exists(File) -> + case file:read_file_info(File) of + {ok, _} -> + true; + _ -> + false + end. + +readable(#file_info{access=read_write}) -> true; +readable(#file_info{access=read}) -> true; +readable(_) -> false. + +writable(#file_info{access=read_write}) -> true; +writable(#file_info{access=write}) -> true; +writable(_) -> false. + +coerce_2_list(X) when is_atom(X) -> + atom_to_list(X); +coerce_2_list(X) -> + X. + +%%% If you an include file is found with a modification +%%% time larger than the modification time of the object +%%% file, return true. Otherwise return false. +check_includes(File, IncludePath, ObjMTime) -> + Path = [filename:dirname(File)|IncludePath], + case epp:open(File, Path, []) of + {ok, Epp} -> + check_includes2(Epp, File, ObjMTime); + _Error -> + false + end. + +check_includes2(Epp, File, ObjMTime) -> + case epp:parse_erl_form(Epp) of + {ok, {attribute, 1, file, {File, 1}}} -> + check_includes2(Epp, File, ObjMTime); + {ok, {attribute, 1, file, {IncFile, 1}}} -> + case file:read_file_info(IncFile) of + {ok, #file_info{mtime=MTime}} when MTime>ObjMTime -> + epp:close(Epp), + true; + _ -> + check_includes2(Epp, File, ObjMTime) + end; + {ok, {attribute, _, behaviour, BehaviourName}} -> + case file:read_file_info(code:which(BehaviourName)) of + {ok, #file_info{mtime=MTime}} when MTime>ObjMTime -> + epp:close(Epp), + true; + _ -> + check_includes2(Epp, File, ObjMTime) + end; + {ok, _} -> + check_includes2(Epp, File, ObjMTime); + {eof, _} -> + epp:close(Epp), + false; + {error, _Error} -> + check_includes2(Epp, File, ObjMTime) + end. -- cgit v1.2.1 From 6391e765eaec561a9408e3655621c689b28ba857 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Fri, 30 Apr 2010 15:39:39 +1200 Subject: Avoid deps on .beam files, which permits -j again --- Makefile | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/Makefile b/Makefile index 242307da..2033d2eb 100644 --- a/Makefile +++ b/Makefile @@ -10,8 +10,7 @@ EBIN_DIR=ebin INCLUDE_DIR=include DOCS_DIR=docs SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing.erl $(USAGES_ERL) -BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) -TARGETS=$(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) $(EBIN_DIR)/rabbit.app +OBJECTS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) WEB_URL=http://stage.rabbitmq.com/ MANPAGES=$(patsubst %.xml, %.gz, $(wildcard $(DOCS_DIR)/*.[0-9].xml)) WEB_MANPAGES=$(patsubst %.xml, %.man.xml, $(wildcard $(DOCS_DIR)/*.[0-9].xml) $(DOCS_DIR)/rabbitmq-service.xml) @@ -67,39 +66,37 @@ define usage_dep $(call usage_xml_to_erl, $(1)): $(1) $(DOCS_DIR)/usage.xsl endef -all: $(TARGETS) +.PHONY:all dialyze create-plt clean cleandb run run-node run-tests start-background-node start-rabbit-on-node stop-rabbit-on-node force-snapshot stop-node start-cover stop-cover srcdist distclean docs_all install -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl make.beam - $(ERL_EBIN) -make +all: $(EBIN_DIR)/rabbit.app -.NOTPARALLEL: +$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in generate_app $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCES) make.beam + $(ERL_EBIN) -make + escript generate_app $(EBIN_DIR) $@ < $< ## Patched OTP make.erl, checks behaviours as well as includes make.beam: make.erl erlc $< -$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app - escript generate_app $(EBIN_DIR) $@ < $< - $(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_PATH) $(PYTHON) codegen.py header $(AMQP_SPEC_JSON_PATH) $@ $(SOURCE_DIR)/rabbit_framing.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_PATH) $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_PATH) $@ -dialyze: $(BEAM_TARGETS) $(BASIC_PLT) +dialyze: all $(BASIC_PLT) $(ERL_EBIN) -eval \ - "rabbit_dialyzer:halt_with_code(rabbit_dialyzer:dialyze_files(\"$(BASIC_PLT)\", \"$(BEAM_TARGETS)\"))." + "rabbit_dialyzer:halt_with_code(rabbit_dialyzer:dialyze_files(\"$(BASIC_PLT)\", \"$(OBJECTS)\"))." # rabbit.plt is used by rabbitmq-erlang-client's dialyze make target create-plt: $(RABBIT_PLT) -$(RABBIT_PLT): $(BEAM_TARGETS) $(BASIC_PLT) +$(RABBIT_PLT): all $(BASIC_PLT) cp $(BASIC_PLT) $@ $(ERL_EBIN) -eval \ - "rabbit_dialyzer:halt_with_code(rabbit_dialyzer:add_to_plt(\"$@\", \"$(BEAM_TARGETS)\"))." + "rabbit_dialyzer:halt_with_code(rabbit_dialyzer:add_to_plt(\"$@\", \"$(OBJECTS)\"))." -$(BASIC_PLT): $(BEAM_TARGETS) +$(BASIC_PLT): all if [ -f $@ ]; then \ touch $@; \ else \ -- cgit v1.2.1 From 69b2359ea6132b71f8a3781e3197301168bf75f4 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Fri, 30 Apr 2010 15:51:53 +1200 Subject: Compile gen_server2 and rabbit_exchange_type with debug_info too, for dialyzer --- Emakefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Emakefile b/Emakefile index a391c7e7..48607b8e 100644 --- a/Emakefile +++ b/Emakefile @@ -1,6 +1,6 @@ % -*- erlang -*- -{'src/gen_server2', [{outdir, "ebin"}]}. -{'src/rabbit_exchange_type', [{outdir, "ebin"}]}. +{'src/gen_server2', [{outdir, "ebin"}, debug_info]}. +{'src/rabbit_exchange_type', [{outdir, "ebin"}, debug_info]}. {'src/*', [{outdir, "ebin"}, {i, "include"}, debug_info, -- cgit v1.2.1 From aff9cfee83d70c2c60bb16a41f66b33349ff8b51 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Fri, 30 Apr 2010 15:52:25 +1200 Subject: Avoid harmful intermediate dep, instead rerunning erl -make every time. --- Makefile | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 2033d2eb..04176898 100644 --- a/Makefile +++ b/Makefile @@ -68,9 +68,7 @@ endef .PHONY:all dialyze create-plt clean cleandb run run-node run-tests start-background-node start-rabbit-on-node stop-rabbit-on-node force-snapshot stop-node start-cover stop-cover srcdist distclean docs_all install -all: $(EBIN_DIR)/rabbit.app - -$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in generate_app $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCES) make.beam +all: $(EBIN_DIR)/rabbit_app.in generate_app $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCES) make.beam $(ERL_EBIN) -make escript generate_app $(EBIN_DIR) $@ < $< -- cgit v1.2.1 From 37a67e2b716b6f8e317afddc850901e3d2eaa0d3 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Fri, 30 Apr 2010 15:57:46 +1200 Subject: Enable use_specs again --- Makefile | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/Makefile b/Makefile index 04176898..2c82b676 100644 --- a/Makefile +++ b/Makefile @@ -43,9 +43,6 @@ ifndef USE_SPECS USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.1" ]; then echo "true"; else echo "false"; fi) endif -#other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(shell [ $(USE_SPECS) = "true" ] && echo "-Duse_specs") - VERSION=0.0.0 TARBALL_NAME=rabbitmq-server-$(VERSION) TARGET_SRC_DIR=dist/$(TARBALL_NAME) @@ -69,7 +66,8 @@ endef .PHONY:all dialyze create-plt clean cleandb run run-node run-tests start-background-node start-rabbit-on-node stop-rabbit-on-node force-snapshot stop-node start-cover stop-cover srcdist distclean docs_all install all: $(EBIN_DIR)/rabbit_app.in generate_app $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCES) make.beam - $(ERL_EBIN) -make + ERL_COMPILER_OPTIONS='$(shell [ $(USE_SPECS) = "true" ] && echo "[{d,use_specs}]")' \ + $(ERL_EBIN) -make escript generate_app $(EBIN_DIR) $@ < $< ## Patched OTP make.erl, checks behaviours as well as includes -- cgit v1.2.1 From 5d25ddfa395f68f46ff75831bea9ac90b8026394 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Fri, 30 Apr 2010 15:59:13 +1200 Subject: Fixup stupid app-generating error --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 2c82b676..069751a9 100644 --- a/Makefile +++ b/Makefile @@ -68,7 +68,7 @@ endef all: $(EBIN_DIR)/rabbit_app.in generate_app $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCES) make.beam ERL_COMPILER_OPTIONS='$(shell [ $(USE_SPECS) = "true" ] && echo "[{d,use_specs}]")' \ $(ERL_EBIN) -make - escript generate_app $(EBIN_DIR) $@ < $< + escript generate_app $(EBIN_DIR) $(EBIN_DIR)/rabbit.app < $(EBIN_DIR)/rabbit_app.in ## Patched OTP make.erl, checks behaviours as well as includes make.beam: make.erl -- cgit v1.2.1 From f8b66c8fc85daa2611b14c602fc7c4c72bc40726 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Fri, 30 Apr 2010 16:07:01 +1200 Subject: Fix srcdist to include make.erl too --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 069751a9..209ebdc9 100644 --- a/Makefile +++ b/Makefile @@ -178,7 +178,7 @@ srcdist: distclean sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ - cp codegen.py Makefile Emakefile generate_app calculate-relative $(TARGET_SRC_DIR) + cp codegen.py Makefile Emakefile generate_app make.erl calculate-relative $(TARGET_SRC_DIR) cp -r scripts $(TARGET_SRC_DIR) cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) -- cgit v1.2.1 From ec11a8bc77ba62f151e76ed7b7306330393354ef Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 30 Apr 2010 16:00:47 +0100 Subject: Backed out changeset ba96049b319c accidentally merged. --- Makefile | 3 - src/delegate.erl | 190 --------------------------------------------- src/delegate_sup.erl | 63 --------------- src/rabbit.erl | 8 +- src/rabbit_amqqueue.erl | 92 ++++++++++------------ src/rabbit_channel.erl | 11 ++- src/rabbit_router.erl | 128 ++++++++++++++++++++++++++---- src/rabbit_tests.erl | 106 +------------------------ src/worker_pool_worker.erl | 18 ++--- 9 files changed, 172 insertions(+), 447 deletions(-) delete mode 100644 src/delegate.erl delete mode 100644 src/delegate_sup.erl diff --git a/Makefile b/Makefile index 3d39ccb0..2b08e071 100644 --- a/Makefile +++ b/Makefile @@ -167,9 +167,6 @@ start-cover: all echo "rabbit_misc:start_cover([\"rabbit\", \"hare\"])." | $(ERL_CALL) echo "rabbit_misc:enable_cover([\"$(COVER_DIR)\"])." | $(ERL_CALL) -start-secondary-cover: all - echo "rabbit_misc:start_cover([\"hare\"])." | $(ERL_CALL) - stop-cover: all echo "rabbit_misc:report_cover(), cover:stop()." | $(ERL_CALL) cat cover/summary.txt diff --git a/src/delegate.erl b/src/delegate.erl deleted file mode 100644 index c9826f0d..00000000 --- a/src/delegate.erl +++ /dev/null @@ -1,190 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(delegate). --define(DELEGATE_PROCESS_COUNT_MULTIPLIER, 2). - --behaviour(gen_server2). - --export([start_link/1, invoke_no_result/2, invoke/2, process_count/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()}). --spec(invoke_no_result/2 :: (pid() | [pid()], fun((pid()) -> any())) -> 'ok'). --spec(invoke/2 :: (pid() | [pid()], fun((pid()) -> A)) -> A). - --spec(process_count/0 :: () -> non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Hash) -> - gen_server2:start_link({local, server(Hash)}, - ?MODULE, [], []). - -invoke(Pid, FPid) when is_pid(Pid) -> - [{Status, Res, _}] = invoke_per_node([{node(Pid), [Pid]}], FPid), - {Status, Res}; - -invoke(Pids, FPid) when is_list(Pids) -> - invoke_per_node(split_delegate_per_node(Pids), FPid). - -invoke_no_result(Pid, FPid) when is_pid(Pid) -> - invoke_no_result_per_node([{node(Pid), [Pid]}], FPid), - ok; - -invoke_no_result(Pids, FPid) when is_list(Pids) -> - invoke_no_result_per_node(split_delegate_per_node(Pids), FPid), - ok. - -%%---------------------------------------------------------------------------- - -internal_call(Node, Thunk) when is_atom(Node) -> - gen_server2:call({remote_server(Node), Node}, {thunk, Thunk}, infinity). - -internal_cast(Node, Thunk) when is_atom(Node) -> - gen_server2:cast({remote_server(Node), Node}, {thunk, Thunk}). - -split_delegate_per_node(Pids) -> - orddict:to_list( - lists:foldl( - fun (Pid, D) -> - orddict:update(node(Pid), - fun (Pids1) -> [Pid | Pids1] end, - [Pid], D) - end, - orddict:new(), Pids)). - -invoke_per_node([{Node, Pids}], FPid) when Node == node() -> - local_delegate(Pids, FPid); -invoke_per_node(NodePids, FPid) -> - lists:append(delegate_per_node(NodePids, FPid, fun internal_call/2)). - -invoke_no_result_per_node([{Node, Pids}], FPid) when Node == node() -> - % This is not actually async! However, in practice FPid will always be - % something that does a gen_server:cast or similar, so I don't think - % it's a problem unless someone misuses this function. Making this - % *actually* async would be painful as we can't spawn at this point or we - % break effect ordering. - local_delegate(Pids, FPid); -invoke_no_result_per_node(NodePids, FPid) -> - delegate_per_node(NodePids, FPid, fun internal_cast/2), - ok. - -local_delegate(Pids, FPid) -> - [safe_invoke(FPid, Pid) || Pid <- Pids]. - -delegate_per_node(NodePids, FPid, DelegateFun) -> - Self = self(), - [gen_server2:cast(local_server(Node), {thunk, fun() -> - Self ! {result, DelegateFun(Node, - fun() -> local_delegate(Pids, FPid) end)} - end}) || {Node, Pids} <- NodePids], - gather_results([], length(NodePids)). - -gather_results(ResultsAcc, 0) -> - ResultsAcc; -gather_results(ResultsAcc, ToGo) -> - receive - {result, Result} -> gather_results([Result | ResultsAcc], ToGo - 1) - end. - -local_server(Node) -> - case get({delegate_local_server_name, Node}) of - undefined -> - Name = server(erlang:phash2(Node, process_count())), - put({delegate_local_server_name, Node}, Name), - Name; - Name -> Name - end. - -remote_server(Node) -> - case get({delegate_remote_server_name, Node}) of - undefined -> - case rpc:call(Node, delegate, process_count, []) of - {badrpc, _} -> - delegate_process_1; % Have to return something, if we're - % just casting then we don't want to - % blow up - Count -> - Name = server(erlang:phash2(self(), Count)), - put({delegate_remote_server_name, Node}, Name), - Name - end; - Name -> Name - end. - -server(Hash) -> - list_to_atom("delegate_process_" ++ integer_to_list(Hash)). - -safe_invoke(FPid, Pid) -> - % We need the catch here for the local case. In the remote case there will - % already have been a catch in handle_ca{ll,st} below, but that's OK, catch - % is idempotent. - case catch FPid(Pid) of - {'EXIT', Reason} -> - {error, {'EXIT', Reason}, Pid}; - Result -> - {ok, Result, Pid} - end. - -process_count() -> - ?DELEGATE_PROCESS_COUNT_MULTIPLIER * erlang:system_info(schedulers). - -%%-------------------------------------------------------------------- - -init([]) -> - {ok, no_state}. - -handle_call({thunk, Thunk}, _From, State) -> - {reply, catch Thunk(), State}. - -handle_cast({thunk, Thunk}, State) -> - catch Thunk(), - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl deleted file mode 100644 index f96765ff..00000000 --- a/src/delegate_sup.erl +++ /dev/null @@ -1,63 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(delegate_sup). - --behaviour(supervisor). - --export([start_link/0]). - --export([init/1]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -%%-------------------------------------------------------------------- - -init(_Args) -> - {ok, {{one_for_one, 10, 10}, - [{Hash, {delegate, start_link, [Hash]}, - transient, 16#ffffffff, worker, [delegate]} || - Hash <- lists:seq(0, delegate:process_count() - 1)]}}. - -%%-------------------------------------------------------------------- diff --git a/src/rabbit.erl b/src/rabbit.erl index 7b63425c..806f2663 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -99,10 +99,10 @@ {requires, kernel_ready}, {enables, core_initialized}]}). --rabbit_boot_step({delegate_sup, - [{description, "cluster delegate"}, - {mfa, {rabbit_sup, start_child, - [delegate_sup]}}, +-rabbit_boot_step({rabbit_router, + [{description, "cluster router"}, + {mfa, {rabbit_sup, start_restartable_child, + [rabbit_router]}}, {requires, kernel_ready}, {enables, core_initialized}]}). diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 603ab08d..5f045b27 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -91,7 +91,7 @@ -spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). -spec(ack/4 :: (pid(), maybe(txn()), [msg_id()], pid()) -> 'ok'). -spec(commit_all/3 :: ([pid()], txn(), pid()) -> ok_or_errors()). --spec(rollback_all/3 :: ([pid()], txn(), pid()) -> 'ok'). +-spec(rollback_all/3 :: ([pid()], txn(), pid()) -> ok_or_errors()). -spec(notify_down_all/2 :: ([pid()], pid()) -> ok_or_errors()). -spec(limit_all/3 :: ([pid()], pid(), pid() | 'undefined') -> ok_or_errors()). -spec(claim_queue/2 :: (amqqueue(), pid()) -> 'ok' | 'locked'). @@ -225,10 +225,10 @@ info_keys() -> rabbit_amqqueue_process:info_keys(). map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). info(#amqqueue{ pid = QPid }) -> - delegate_pcall(QPid, 9, info, infinity). + gen_server2:pcall(QPid, 9, info, infinity). info(#amqqueue{ pid = QPid }, Items) -> - case delegate_pcall(QPid, 9, {info, Items}, infinity) of + case gen_server2:pcall(QPid, 9, {info, Items}, infinity) of {ok, Res} -> Res; {error, Error} -> throw(Error) end. @@ -238,7 +238,7 @@ info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). consumers(#amqqueue{ pid = QPid }) -> - delegate_pcall(QPid, 9, consumers, infinity). + gen_server2:pcall(QPid, 9, consumers, infinity). consumers_all(VHostPath) -> lists:concat( @@ -247,16 +247,15 @@ consumers_all(VHostPath) -> {ChPid, ConsumerTag, AckRequired} <- consumers(Q)] end)). -stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat, infinity). +stat(#amqqueue{pid = QPid}) -> gen_server2:call(QPid, stat, infinity). stat_all() -> lists:map(fun stat/1, rabbit_misc:dirty_read_all(rabbit_queue)). delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}, infinity). + gen_server2:call(QPid, {delete, IfUnused, IfEmpty}, infinity). -purge(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, purge, infinity). +purge(#amqqueue{ pid = QPid }) -> gen_server2:call(QPid, purge, infinity). deliver(QPid, #delivery{immediate = true, txn = Txn, sender = ChPid, message = Message}) -> @@ -271,23 +270,25 @@ deliver(QPid, #delivery{txn = Txn, sender = ChPid, message = Message}) -> true. requeue(QPid, MsgIds, ChPid) -> - delegate_cast(QPid, {requeue, MsgIds, ChPid}). + gen_server2:cast(QPid, {requeue, MsgIds, ChPid}). ack(QPid, Txn, MsgIds, ChPid) -> - delegate_pcast(QPid, 7, {ack, Txn, MsgIds, ChPid}). + gen_server2:pcast(QPid, 7, {ack, Txn, MsgIds, ChPid}). commit_all(QPids, Txn, ChPid) -> - safe_delegate_call_ok( + safe_pmap_ok( fun (QPid) -> exit({queue_disappeared, QPid}) end, fun (QPid) -> gen_server2:call(QPid, {commit, Txn, ChPid}, infinity) end, QPids). rollback_all(QPids, Txn, ChPid) -> - delegate:invoke_no_result(QPids, - fun (QPid) -> gen_server2:cast(QPid, {rollback, Txn, ChPid}) end). + safe_pmap_ok( + fun (QPid) -> exit({queue_disappeared, QPid}) end, + fun (QPid) -> gen_server2:cast(QPid, {rollback, Txn, ChPid}) end, + QPids). notify_down_all(QPids, ChPid) -> - safe_delegate_call_ok( + safe_pmap_ok( %% we don't care if the queue process has terminated in the %% meantime fun (_) -> ok end, @@ -295,34 +296,38 @@ notify_down_all(QPids, ChPid) -> QPids). limit_all(QPids, ChPid, LimiterPid) -> - delegate:invoke_no_result(QPids, - fun (QPid) -> gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) end). + safe_pmap_ok( + fun (_) -> ok end, + fun (QPid) -> gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) end, + QPids). claim_queue(#amqqueue{pid = QPid}, ReaderPid) -> - delegate_call(QPid, {claim_queue, ReaderPid}, infinity). + gen_server2:call(QPid, {claim_queue, ReaderPid}, infinity). basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> - delegate_call(QPid, {basic_get, ChPid, NoAck}, infinity). + gen_server2:call(QPid, {basic_get, ChPid, NoAck}, infinity). basic_consume(#amqqueue{pid = QPid}, NoAck, ReaderPid, ChPid, LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg) -> - delegate_call(QPid, {basic_consume, NoAck, ReaderPid, ChPid, + gen_server2:call(QPid, {basic_consume, NoAck, ReaderPid, ChPid, LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg}, infinity). basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> - ok = delegate_call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}, - infinity). + ok = gen_server2:call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}, + infinity). notify_sent(QPid, ChPid) -> - delegate_pcast(QPid, 7, {notify_sent, ChPid}). + gen_server2:pcast(QPid, 7, {notify_sent, ChPid}). unblock(QPid, ChPid) -> - delegate_pcast(QPid, 7, {unblock, ChPid}). + gen_server2:pcast(QPid, 7, {unblock, ChPid}). flush_all(QPids, ChPid) -> - delegate:invoke_no_result(QPids, - fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). + safe_pmap_ok( + fun (_) -> ok end, + fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end, + QPids). internal_delete(QueueName) -> case @@ -368,32 +373,17 @@ pseudo_queue(QueueName, Pid) -> arguments = [], pid = Pid}. -safe_delegate_call_ok(H, F, Pids) -> - case [R || R = {error, _, _} <- delegate:invoke( - Pids, - fun (Pid) -> - rabbit_misc:with_exit_handler( - fun () -> H(Pid) end, - fun () -> F(Pid) end) - end)] of +safe_pmap_ok(H, F, L) -> + case [R || R <- rabbit_misc:upmap( + fun (V) -> + try + rabbit_misc:with_exit_handler( + fun () -> H(V) end, + fun () -> F(V) end) + catch Class:Reason -> {Class, Reason} + end + end, L), + R =/= ok] of [] -> ok; Errors -> {error, Errors} end. - -delegate_call(Pid, Msg, Timeout) -> - {_Status, Res} = - delegate:invoke(Pid, fun(P) -> gen_server2:call(P, Msg, Timeout) end), - Res. - -delegate_pcall(Pid, Pri, Msg, Timeout) -> - {_Status, Res} = - delegate:invoke(Pid, - fun(P) -> gen_server2:pcall(P, Pri, Msg, Timeout) end), - Res. - -delegate_cast(Pid, Msg) -> - delegate:invoke_no_result(Pid, fun(P) -> gen_server2:cast(P, Msg) end). - -delegate_pcast(Pid, Pri, Msg) -> - delegate:invoke_no_result(Pid, fun(P) -> gen_server2:pcast(P, Pri, Msg) end). - diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 1f16ec08..7d3cd722 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -944,10 +944,13 @@ internal_rollback(State = #ch{transaction_id = TxnKey, [self(), queue:len(UAQ), queue:len(UAMQ)]), - ok = rabbit_amqqueue:rollback_all(sets:to_list(Participants), - TxnKey, self()), - NewUAMQ = queue:join(UAQ, UAMQ), - new_tx(State#ch{unacked_message_q = NewUAMQ}). + case rabbit_amqqueue:rollback_all(sets:to_list(Participants), + TxnKey, self()) of + ok -> NewUAMQ = queue:join(UAQ, UAMQ), + new_tx(State#ch{unacked_message_q = NewUAMQ}); + {error, Errors} -> rabbit_misc:protocol_error( + internal_error, "rollback failed: ~w", [Errors]) + end. rollback_and_notify(State = #ch{transaction_id = none}) -> notify_queues(State); diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl index 7bd916b3..a449e19e 100644 --- a/src/rabbit_router.erl +++ b/src/rabbit_router.erl @@ -33,39 +33,100 @@ -include_lib("stdlib/include/qlc.hrl"). -include("rabbit.hrl"). --export([deliver/2, +-behaviour(gen_server2). + +-export([start_link/0, + deliver/2, match_bindings/2, match_routing_key/2]). +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-define(SERVER, ?MODULE). + +%% cross-node routing optimisation is disabled because of bug 19758. +-define(BUG19758, true). + %%---------------------------------------------------------------------------- -ifdef(use_specs). +-spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). -spec(deliver/2 :: ([pid()], delivery()) -> {routing_result(), [pid()]}). -endif. %%---------------------------------------------------------------------------- -deliver(QPids, Delivery = #delivery{mandatory = false, - immediate = false}) -> +start_link() -> + gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). + +-ifdef(BUG19758). + +deliver(QPids, Delivery) -> + check_delivery(Delivery#delivery.mandatory, Delivery#delivery.immediate, + run_bindings(QPids, Delivery)). + +-else. + +deliver(QPids, Delivery) -> + %% we reduce inter-node traffic by grouping the qpids by node and + %% only delivering one copy of the message to each node involved, + %% which then in turn delivers it to its queues. + deliver_per_node( + dict:to_list( + lists:foldl(fun (QPid, D) -> + rabbit_misc:dict_cons(node(QPid), QPid, D) + end, dict:new(), QPids)), + Delivery). + +deliver_per_node([{Node, QPids}], Delivery) when Node == node() -> + %% optimisation + check_delivery(Delivery#delivery.mandatory, Delivery#delivery.immediate, + run_bindings(QPids, Delivery)); +deliver_per_node(NodeQPids, Delivery = #delivery{mandatory = false, + immediate = false}) -> %% optimisation: when Mandatory = false and Immediate = false, - %% rabbit_amqqueue:deliver will deliver the + %% rabbit_amqqueue:deliver in run_bindings below will deliver the %% message to the queue process asynchronously, and return true, %% which means all the QPids will always be returned. It is %% therefore safe to use a fire-and-forget cast here and return %% the QPids - the semantics is preserved. This scales much better %% than the non-immediate case below. - delegate:invoke_no_result( - QPids, fun(Pid) -> rabbit_amqqueue:deliver(Pid, Delivery) end), - {routed, QPids}; - -deliver(QPids, Delivery) -> - Res = delegate:invoke( - QPids, fun(Pid) -> rabbit_amqqueue:deliver(Pid, Delivery) end), - {Routed, Handled} = lists:foldl(fun fold_deliveries/2, {false, []}, Res), + {routed, + lists:flatmap( + fun ({Node, QPids}) -> + gen_server2:cast({?SERVER, Node}, {deliver, QPids, Delivery}), + QPids + end, + NodeQPids)}; +deliver_per_node(NodeQPids, Delivery) -> + R = rabbit_misc:upmap( + fun ({Node, QPids}) -> + try gen_server2:call({?SERVER, Node}, + {deliver, QPids, Delivery}, + infinity) + catch + _Class:_Reason -> + %% TODO: figure out what to log (and do!) here + {false, []} + end + end, + NodeQPids), + {Routed, Handled} = + lists:foldl(fun ({Routed, Handled}, {RoutedAcc, HandledAcc}) -> + {Routed or RoutedAcc, + %% we do the concatenation below, which + %% should be faster + [Handled | HandledAcc]} + end, + {false, []}, + R), check_delivery(Delivery#delivery.mandatory, Delivery#delivery.immediate, - {Routed, Handled}). + {Routed, lists:append(Handled)}). + +-endif. %% TODO: Maybe this should be handled by a cursor instead. %% TODO: This causes a full scan for each entry with the same exchange @@ -109,9 +170,44 @@ lookup_qpids(Queues) -> %%-------------------------------------------------------------------- -fold_deliveries({ok, true, Pid},{_, Handled}) -> {true, [Pid|Handled]}; -fold_deliveries({ok, false, _ },{_, Handled}) -> {true, Handled}; -fold_deliveries({error, _ , _ },{Routed, Handled}) -> {Routed, Handled}. +init([]) -> + {ok, no_state}. + +handle_call({deliver, QPids, Delivery}, From, State) -> + spawn( + fun () -> + R = run_bindings(QPids, Delivery), + gen_server2:reply(From, R) + end), + {noreply, State}. + +handle_cast({deliver, QPids, Delivery}, State) -> + %% in order to preserve message ordering we must not spawn here + run_bindings(QPids, Delivery), + {noreply, State}. + +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +%%-------------------------------------------------------------------- + +run_bindings(QPids, Delivery) -> + lists:foldl( + fun (QPid, {Routed, Handled}) -> + case catch rabbit_amqqueue:deliver(QPid, Delivery) of + true -> {true, [QPid | Handled]}; + false -> {true, Handled}; + {'EXIT', _Reason} -> {Routed, Handled} + end + end, + {false, []}, + QPids). %% check_delivery(Mandatory, Immediate, {WasRouted, QPids}) check_delivery(true, _ , {false, []}) -> {unroutable, []}; diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 374ea07d..d645d183 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -61,32 +61,7 @@ all_tests() -> passed = test_cluster_management(), passed = test_user_management(), passed = test_server_status(), - passed = maybe_run_cluster_dependent_tests(), - passed. - - -maybe_run_cluster_dependent_tests() -> - SecondaryNode = rabbit_misc:makenode("hare"), - - case net_adm:ping(SecondaryNode) of - pong -> passed = run_cluster_dependent_tests(SecondaryNode); - pang -> io:format("Skipping cluster dependent tests with node ~p~n", - [SecondaryNode]) - end, - passed. - -run_cluster_dependent_tests(SecondaryNode) -> - SecondaryNodeS = atom_to_list(SecondaryNode), - - ok = control_action(stop_app, []), - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - - io:format("Running cluster dependent tests with node ~p~n", [SecondaryNode]), - passed = test_delegates_async(SecondaryNode), - passed = test_delegates_sync(SecondaryNode), - + passed = test_hooks(), passed. test_priority_queue() -> @@ -840,85 +815,6 @@ test_hooks() -> end, passed. -test_delegates_async(SecondaryNode) -> - Self = self(), - Sender = fun(Pid) -> Pid ! {invoked, Self} end, - - Responder = make_responder(fun({invoked, Pid}) -> Pid ! response end), - - ok = delegate:invoke_no_result(spawn(Responder), Sender), - ok = delegate:invoke_no_result(spawn(SecondaryNode, Responder), Sender), - await_response(2), - - LocalPids = spawn_responders(node(), Responder, 10), - RemotePids = spawn_responders(SecondaryNode, Responder, 10), - ok = delegate:invoke_no_result(LocalPids ++ RemotePids, Sender), - await_response(20), - - passed. - -make_responder(FMsg) -> - fun() -> - receive Msg -> FMsg(Msg) - after 1000 -> throw(timeout) - end - end. - -spawn_responders(Node, Responder, Count) -> - [spawn(Node, Responder) || _ <- lists:seq(1, Count)]. - -await_response(0) -> - ok; - -await_response(Count) -> - receive - response -> ok, - await_response(Count - 1) - after 1000 -> - io:format("Async reply not received~n"), - throw(timeout) - end. - -test_delegates_sync(SecondaryNode) -> - Sender = fun(Pid) -> gen_server:call(Pid, invoked) end, - - Responder = make_responder(fun({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end), - - BadResponder = make_responder(fun({'$gen_call', _From, invoked}) -> - throw(exception) - end), - - {ok, response} = delegate:invoke(spawn(Responder), Sender), - {ok, response} = delegate:invoke(spawn(SecondaryNode, Responder), Sender), - - {error, _} = delegate:invoke(spawn(BadResponder), Sender), - {error, _} = delegate:invoke(spawn(SecondaryNode, BadResponder), Sender), - - LocalGoodPids = spawn_responders(node(), Responder, 2), - RemoteGoodPids = spawn_responders(SecondaryNode, Responder, 2), - LocalBadPids = spawn_responders(node(), BadResponder, 2), - RemoteBadPids = spawn_responders(SecondaryNode, BadResponder, 2), - - GoodRes = delegate:invoke(LocalGoodPids ++ RemoteGoodPids, Sender), - BadRes = delegate:invoke(LocalBadPids ++ RemoteBadPids, Sender), - - true = lists:all(fun ({ok, response, _}) -> true end, GoodRes), - true = lists:all(fun ({error, _, _}) -> true end, BadRes), - - GoodResPids = [Pid || {_, _, Pid} <- GoodRes], - BadResPids = [Pid || {_, _, Pid} <- BadRes], - - Good = ordsets:from_list(LocalGoodPids ++ RemoteGoodPids), - Good = ordsets:from_list(GoodResPids), - - Bad = ordsets:from_list(LocalBadPids ++ RemoteBadPids), - Bad = ordsets:from_list(BadResPids), - - passed. - - %--------------------------------------------------------------------- control_action(Command, Args) -> control_action(Command, node(), Args). diff --git a/src/worker_pool_worker.erl b/src/worker_pool_worker.erl index 4a3108c8..d3a48119 100644 --- a/src/worker_pool_worker.erl +++ b/src/worker_pool_worker.erl @@ -46,8 +46,6 @@ -spec(submit/2 :: (pid(), fun (() -> A) | {atom(), atom(), [any()]}) -> A). -spec(submit_async/2 :: (pid(), fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). --spec(run/1 :: (fun (() -> A)) -> A; - ({atom(), atom(), [any()]}) -> any()). -endif. @@ -67,15 +65,6 @@ submit(Pid, Fun) -> submit_async(Pid, Fun) -> gen_server2:cast(Pid, {submit_async, Fun}). -%%---------------------------------------------------------------------------- - -run({M, F, A}) -> - apply(M, F, A); -run(Fun) -> - Fun(). - -%%---------------------------------------------------------------------------- - init([WId]) -> ok = worker_pool:idle(WId), put(worker_pool_worker, true), @@ -106,3 +95,10 @@ code_change(_OldVsn, State, _Extra) -> terminate(_Reason, State) -> State. + +%%---------------------------------------------------------------------------- + +run({M, F, A}) -> + apply(M, F, A); +run(Fun) -> + Fun(). -- cgit v1.2.1 From 8a373c925d456a0a4960ff8bc37c826857aecdf6 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 30 Apr 2010 16:03:22 +0100 Subject: Adding type sigs and cosmetics --- src/worker_pool_worker.erl | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/src/worker_pool_worker.erl b/src/worker_pool_worker.erl index d3a48119..4a3108c8 100644 --- a/src/worker_pool_worker.erl +++ b/src/worker_pool_worker.erl @@ -46,6 +46,8 @@ -spec(submit/2 :: (pid(), fun (() -> A) | {atom(), atom(), [any()]}) -> A). -spec(submit_async/2 :: (pid(), fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). +-spec(run/1 :: (fun (() -> A)) -> A; + ({atom(), atom(), [any()]}) -> any()). -endif. @@ -65,6 +67,15 @@ submit(Pid, Fun) -> submit_async(Pid, Fun) -> gen_server2:cast(Pid, {submit_async, Fun}). +%%---------------------------------------------------------------------------- + +run({M, F, A}) -> + apply(M, F, A); +run(Fun) -> + Fun(). + +%%---------------------------------------------------------------------------- + init([WId]) -> ok = worker_pool:idle(WId), put(worker_pool_worker, true), @@ -95,10 +106,3 @@ code_change(_OldVsn, State, _Extra) -> terminate(_Reason, State) -> State. - -%%---------------------------------------------------------------------------- - -run({M, F, A}) -> - apply(M, F, A); -run(Fun) -> - Fun(). -- cgit v1.2.1 From 2c4d78a0d7213f05662fab6cde22257cc161d95d Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 30 Apr 2010 16:05:32 +0100 Subject: GRRRRRRRRRRRRRRRRRRR --- src/worker_pool_worker.erl | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/worker_pool_worker.erl b/src/worker_pool_worker.erl index 4a3108c8..9ef8c636 100644 --- a/src/worker_pool_worker.erl +++ b/src/worker_pool_worker.erl @@ -67,8 +67,6 @@ submit(Pid, Fun) -> submit_async(Pid, Fun) -> gen_server2:cast(Pid, {submit_async, Fun}). -%%---------------------------------------------------------------------------- - run({M, F, A}) -> apply(M, F, A); run(Fun) -> -- cgit v1.2.1 From cdde75bc20fe933e22f6fe01ce0c2371729df4b8 Mon Sep 17 00:00:00 2001 From: Tony Garnock-Jones Date: Sat, 1 May 2010 11:22:49 +1200 Subject: It's Rabbit Tech, now, LShift no longer. --- make.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/make.erl b/make.erl index 4c0b87b3..602161d9 100644 --- a/make.erl +++ b/make.erl @@ -4,7 +4,7 @@ %% 1) behaviours are checked similarly to included files when deciding %% whether to recompile a source file or not -%% All modifications are Copyright (C) 2010 LShift Ltd. +%% All modifications are Copyright (C) 2010 Rabbit Technologies Ltd. %% %% %CopyrightBegin% -- cgit v1.2.1 From 892fec46ba6d5e4586d21245973f5979733391e2 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 7 May 2010 14:19:12 +0100 Subject: After merge this function is unused. --- src/rabbit_amqqueue.erl | 3 --- 1 file changed, 3 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 8d8b1952..4a0258ed 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -387,9 +387,6 @@ delegate_call(Pid, Msg, Timeout) -> delegate_pcall(Pid, Pri, Msg, Timeout) -> delegate:invoke(Pid, fun(P) -> gen_server2:pcall(P, Pri, Msg, Timeout) end). -delegate_cast(Pid, Msg) -> - delegate:invoke_no_result(Pid, fun(P) -> gen_server2:cast(P, Msg) end). - delegate_pcast(Pid, Pri, Msg) -> delegate:invoke_no_result(Pid, fun(P) -> gen_server2:pcast(P, Pri, Msg) end). -- cgit v1.2.1 From 263b4b5bcc8b2f568a1a2c982f6cbdf0e4971e83 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 10 May 2010 11:24:42 +0100 Subject: Delete exclusive queues synchronously with connection.close --- src/rabbit_amqqueue.erl | 24 +++++++++++++++++++++--- src/rabbit_amqqueue_process.erl | 4 ++++ src/rabbit_reader.erl | 35 +++++++++++++++++++++++++++++------ 3 files changed, 54 insertions(+), 9 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 4a0258ed..3538b8c8 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -154,7 +154,16 @@ declare(QueueName, Durable, AutoDelete, Args, Owner) -> pid = none}), ok = gen_server2:cast(Q#amqqueue.pid, {init, false}), ok = gen_server2:call(Q#amqqueue.pid, sync, infinity), - internal_declare(Q, true). + Q2 = internal_declare(Q, true), + %% We need to notify the reader within the channel process so that we can + %% be sure there are no outstanding exclusive queues being declared as the + %% connection shuts down. + case Owner of + none -> Q2; + _ -> + Owner ! {notify_exclusive_queue, Q#amqqueue.pid}, + Q2 + end. internal_declare(Q = #amqqueue{name = QueueName}, WantDefaultBinding) -> case rabbit_misc:execute_mnesia_transaction( @@ -251,8 +260,17 @@ stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat, infinity). stat_all() -> lists:map(fun stat/1, rabbit_misc:dirty_read_all(rabbit_queue)). -delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}, infinity). +delete(#amqqueue{ pid = QPid, exclusive_owner = Owner }, IfUnused, IfEmpty) -> + Res = delegate_call(QPid, {delete, IfUnused, IfEmpty}, infinity), + %% We need to notify the reader within the channel process so that we can + %% be sure there are no outstanding exclusive queues being deleted as the + %% connection shuts down. + case Owner of + none -> Res; + _ -> + Owner ! {delete_exclusive_queue, QPid}, + Res + end. purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge, infinity). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index e6ac964f..d7e83d56 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -803,6 +803,10 @@ handle_cast({flush, ChPid}, State) -> handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State = #q{q= #amqqueue{ exclusive_owner = DownPid}}) -> %% Exclusively owned queues must disappear with their owner. + %% In the case of clean shutdown we delete the queue synchronously in the + %% reader - although not required by the spec this seems to match what + %% people expect (see bug 21824). However we need this monitor-and-async- + %% delete in case the connection goes away unexpectedly. {stop, normal, State}; handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> case handle_ch_down(DownPid, State) of diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index d9e6de05..a6398d76 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -58,7 +58,8 @@ %--------------------------------------------------------------------------- --record(v1, {sock, connection, callback, recv_ref, connection_state}). +-record(v1, {sock, connection, callback, recv_ref, connection_state, + exclusive_queues}). -define(INFO_KEYS, [pid, address, port, peer_address, peer_port, @@ -247,7 +248,8 @@ start_connection(Parent, Deb, Sock, SockTransform) -> client_properties = none}, callback = uninitialized_callback, recv_ref = none, - connection_state = pre_init}, + connection_state = pre_init, + exclusive_queues = sets:new()}, handshake, 8)) catch Ex -> (if Ex == connection_closed_abruptly -> @@ -316,6 +318,10 @@ mainloop(Parent, Deb, State = #v1{sock= Sock, recv_ref = Ref}) -> end; timeout -> throw({timeout, State#v1.connection_state}); + {notify_exclusive_queue, QPid} -> + mainloop(Parent, Deb, add_exclusive_queue(QPid, State)); + {delete_exclusive_queue, QPid} -> + mainloop(Parent, Deb, delete_exclusive_queue(QPid, State)); {'$gen_call', From, {shutdown, Explanation}} -> {ForceTermination, NewState} = terminate(Explanation, State), gen_server:reply(From, ok), @@ -428,11 +434,18 @@ wait_for_channel_termination(N, TimerRef) -> exit(channel_termination_timeout) end. -maybe_close(State = #v1{connection_state = closing}) -> +maybe_close(State = #v1{connection_state = closing, + exclusive_queues = ExclusiveQueues}) -> case all_channels() of - [] -> ok = send_on_channel0( - State#v1.sock, #'connection.close_ok'{}), - close_connection(State); + [] -> + %% Spec says "Exclusive queues may only be accessed by the current + %% connection, and are deleted when that connection closes." + %% This does not strictly imply synchrony, but in practice it seems + %% to be what people assume. + [gen_server2:call(QPid, {delete, false, false}, infinity) + || QPid <- sets:to_list(ExclusiveQueues)], + ok = send_on_channel0(State#v1.sock, #'connection.close_ok'{}), + close_connection(State); _ -> State end; maybe_close(State) -> @@ -699,6 +712,16 @@ i(Item, #v1{}) -> %%-------------------------------------------------------------------------- +add_exclusive_queue(QPid, State) -> + Queues = State#v1.exclusive_queues, + State#v1{exclusive_queues = sets:add_element(QPid, Queues)}. + +delete_exclusive_queue(QPid, State) -> + Queues = State#v1.exclusive_queues, + State#v1{exclusive_queues = sets:del_element(QPid, Queues)}. + +%%-------------------------------------------------------------------------- + send_to_new_channel(Channel, AnalyzedFrame, State) -> #v1{sock = Sock, connection = #connection{ frame_max = FrameMax, -- cgit v1.2.1 From e02e8b828108c8d02a1891d3dff37368971532fe Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 10 May 2010 17:50:44 +0100 Subject: Delete exclusive queues synchronously with connection.close. --- src/rabbit_amqqueue.erl | 26 ++++++++++++++++++++++---- src/rabbit_amqqueue_process.erl | 4 ++++ src/rabbit_reader.erl | 35 +++++++++++++++++++++++++++++------ 3 files changed, 55 insertions(+), 10 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index dc37c835..5a72638a 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -188,7 +188,7 @@ recover_durable_queues(DurableQueues) -> %% true; %% shared_or_live_owner(Owner) when is_pid(Owner) -> %% rpc:call(node(Owner), erlang, is_process_alive, [Owner]). - + declare(QueueName, Durable, AutoDelete, Args, Owner) -> Q = start_queue_process(#amqqueue{name = QueueName, durable = Durable, @@ -198,7 +198,16 @@ declare(QueueName, Durable, AutoDelete, Args, Owner) -> pid = none}), case gen_server2:call(Q#amqqueue.pid, {init, false}) of not_found -> rabbit_misc:not_found(QueueName); - Q1 -> Q1 + Q1 -> + %% We need to notify the reader within the channel process so that we can + %% be sure there are no outstanding exclusive queues being declared as the + %% connection shuts down. + case Owner of + none -> Q1; + _ -> + Owner ! {notify_exclusive_queue, Q#amqqueue.pid}, + Q1 + end end. internal_declare(Q = #amqqueue{name = QueueName}, Recover) -> @@ -293,8 +302,17 @@ stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat, infinity). stat_all() -> lists:map(fun stat/1, rabbit_misc:dirty_read_all(rabbit_queue)). -delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}, infinity). +delete(#amqqueue{ pid = QPid, exclusive_owner = Owner }, IfUnused, IfEmpty) -> + Res = delegate_call(QPid, {delete, IfUnused, IfEmpty}, infinity), + %% We need to notify the reader within the channel process so that we can + %% be sure there are no outstanding exclusive queues being deleted as the + %% connection shuts down. + case Owner of + none -> Res; + _ -> + Owner ! {delete_exclusive_queue, QPid}, + Res + end. purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge, infinity). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 92c21fa6..a2d50a80 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -799,6 +799,10 @@ handle_cast({set_maximum_since_use, Age}, State) -> handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State = #q{q= #amqqueue{ exclusive_owner = DownPid}}) -> %% Exclusively owned queues must disappear with their owner. + %% In the case of clean shutdown we delete the queue synchronously in the + %% reader - although not required by the spec this seems to match what + %% people expect (see bug 21824). However we need this monitor-and-async- + %% delete in case the connection goes away unexpectedly. {stop, normal, State}; handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> case handle_ch_down(DownPid, State) of diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index d9e6de05..a6398d76 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -58,7 +58,8 @@ %--------------------------------------------------------------------------- --record(v1, {sock, connection, callback, recv_ref, connection_state}). +-record(v1, {sock, connection, callback, recv_ref, connection_state, + exclusive_queues}). -define(INFO_KEYS, [pid, address, port, peer_address, peer_port, @@ -247,7 +248,8 @@ start_connection(Parent, Deb, Sock, SockTransform) -> client_properties = none}, callback = uninitialized_callback, recv_ref = none, - connection_state = pre_init}, + connection_state = pre_init, + exclusive_queues = sets:new()}, handshake, 8)) catch Ex -> (if Ex == connection_closed_abruptly -> @@ -316,6 +318,10 @@ mainloop(Parent, Deb, State = #v1{sock= Sock, recv_ref = Ref}) -> end; timeout -> throw({timeout, State#v1.connection_state}); + {notify_exclusive_queue, QPid} -> + mainloop(Parent, Deb, add_exclusive_queue(QPid, State)); + {delete_exclusive_queue, QPid} -> + mainloop(Parent, Deb, delete_exclusive_queue(QPid, State)); {'$gen_call', From, {shutdown, Explanation}} -> {ForceTermination, NewState} = terminate(Explanation, State), gen_server:reply(From, ok), @@ -428,11 +434,18 @@ wait_for_channel_termination(N, TimerRef) -> exit(channel_termination_timeout) end. -maybe_close(State = #v1{connection_state = closing}) -> +maybe_close(State = #v1{connection_state = closing, + exclusive_queues = ExclusiveQueues}) -> case all_channels() of - [] -> ok = send_on_channel0( - State#v1.sock, #'connection.close_ok'{}), - close_connection(State); + [] -> + %% Spec says "Exclusive queues may only be accessed by the current + %% connection, and are deleted when that connection closes." + %% This does not strictly imply synchrony, but in practice it seems + %% to be what people assume. + [gen_server2:call(QPid, {delete, false, false}, infinity) + || QPid <- sets:to_list(ExclusiveQueues)], + ok = send_on_channel0(State#v1.sock, #'connection.close_ok'{}), + close_connection(State); _ -> State end; maybe_close(State) -> @@ -699,6 +712,16 @@ i(Item, #v1{}) -> %%-------------------------------------------------------------------------- +add_exclusive_queue(QPid, State) -> + Queues = State#v1.exclusive_queues, + State#v1{exclusive_queues = sets:add_element(QPid, Queues)}. + +delete_exclusive_queue(QPid, State) -> + Queues = State#v1.exclusive_queues, + State#v1{exclusive_queues = sets:del_element(QPid, Queues)}. + +%%-------------------------------------------------------------------------- + send_to_new_channel(Channel, AnalyzedFrame, State) -> #v1{sock = Sock, connection = #connection{ frame_max = FrameMax, -- cgit v1.2.1 From 844049717157b0162638ea894cae7a83d15c1959 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 13 May 2010 11:33:58 +0100 Subject: Use synchronous calls to a queue collector process rather than async calls to reader to keep track of exclusive queues, removes a race with queue notification vs connection closure. --- src/rabbit_amqqueue.erl | 34 +++++------- src/rabbit_channel.erl | 29 ++++++----- src/rabbit_reader.erl | 31 ++++------- src/rabbit_reader_queue_collector.erl | 98 +++++++++++++++++++++++++++++++++++ src/rabbit_tests.erl | 4 +- 5 files changed, 139 insertions(+), 57 deletions(-) create mode 100644 src/rabbit_reader_queue_collector.erl diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 5a72638a..3c08d3a1 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -31,7 +31,7 @@ -module(rabbit_amqqueue). --export([start/0, declare/5, delete/3, purge/1]). +-export([start/0, declare/6, delete/3, purge/1]). -export([internal_declare/2, internal_delete/1, maybe_run_queue_via_backing_queue/2, update_ram_duration/1, set_ram_duration_target/2, @@ -65,7 +65,8 @@ 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). -spec(start/0 :: () -> 'ok'). --spec(declare/5 :: (queue_name(), boolean(), boolean(), amqp_table(), maybe(pid())) -> +-spec(declare/6 :: + (queue_name(), boolean(), boolean(), amqp_table(), pid(), maybe(pid())) -> amqqueue()). -spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). -spec(with/2 :: (queue_name(), qfun(A)) -> A | not_found()). @@ -189,7 +190,7 @@ recover_durable_queues(DurableQueues) -> %% shared_or_live_owner(Owner) when is_pid(Owner) -> %% rpc:call(node(Owner), erlang, is_process_alive, [Owner]). -declare(QueueName, Durable, AutoDelete, Args, Owner) -> +declare(QueueName, Durable, AutoDelete, Args, Owner, CollectorPid) -> Q = start_queue_process(#amqqueue{name = QueueName, durable = Durable, auto_delete = AutoDelete, @@ -199,13 +200,15 @@ declare(QueueName, Durable, AutoDelete, Args, Owner) -> case gen_server2:call(Q#amqqueue.pid, {init, false}) of not_found -> rabbit_misc:not_found(QueueName); Q1 -> - %% We need to notify the reader within the channel process so that we can - %% be sure there are no outstanding exclusive queues being declared as the - %% connection shuts down. + %% We need to notify the reader within the channel process so that + %% we can be sure there are no outstanding exclusive queues being + %% declared as the connection shuts down. case Owner of - none -> Q1; - _ -> - Owner ! {notify_exclusive_queue, Q#amqqueue.pid}, + none -> + Q1; + _ -> + rabbit_reader_queue_collector:notify_exclusive_queue( + CollectorPid, Q#amqqueue.pid), Q1 end end. @@ -302,17 +305,8 @@ stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat, infinity). stat_all() -> lists:map(fun stat/1, rabbit_misc:dirty_read_all(rabbit_queue)). -delete(#amqqueue{ pid = QPid, exclusive_owner = Owner }, IfUnused, IfEmpty) -> - Res = delegate_call(QPid, {delete, IfUnused, IfEmpty}, infinity), - %% We need to notify the reader within the channel process so that we can - %% be sure there are no outstanding exclusive queues being deleted as the - %% connection shuts down. - case Owner of - none -> Res; - _ -> - Owner ! {delete_exclusive_queue, QPid}, - Res - end. +delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> + delegate_call(QPid, {delete, IfUnused, IfEmpty}, infinity). purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge, infinity). diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index e29abb85..66f3717d 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -35,7 +35,7 @@ -behaviour(gen_server2). --export([start_link/5, do/2, do/3, shutdown/1]). +-export([start_link/6, do/2, do/3, shutdown/1]). -export([send_command/2, deliver/4, conserve_memory/2, flushed/2]). -export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). @@ -46,7 +46,7 @@ transaction_id, tx_participants, next_tag, uncommitted_ack_q, unacked_message_q, username, virtual_host, most_recently_declared_queue, - consumer_mapping, blocking}). + consumer_mapping, blocking, queue_collector_pid}). -define(MAX_PERMISSION_CACHE_SIZE, 12). @@ -66,8 +66,8 @@ -ifdef(use_specs). --spec(start_link/5 :: - (channel_number(), pid(), pid(), username(), vhost()) -> pid()). +-spec(start_link/6 :: + (channel_number(), pid(), pid(), username(), vhost(), pid()) -> pid()). -spec(do/2 :: (pid(), amqp_method()) -> 'ok'). -spec(do/3 :: (pid(), amqp_method(), maybe(content())) -> 'ok'). -spec(shutdown/1 :: (pid()) -> 'ok'). @@ -86,10 +86,10 @@ %%---------------------------------------------------------------------------- -start_link(Channel, ReaderPid, WriterPid, Username, VHost) -> +start_link(Channel, ReaderPid, WriterPid, Username, VHost, CollectorPid) -> {ok, Pid} = gen_server2:start_link( ?MODULE, [Channel, ReaderPid, WriterPid, - Username, VHost], []), + Username, VHost, CollectorPid], []), Pid. do(Pid, Method) -> @@ -135,7 +135,7 @@ info_all(Items) -> %%--------------------------------------------------------------------------- -init([Channel, ReaderPid, WriterPid, Username, VHost]) -> +init([Channel, ReaderPid, WriterPid, Username, VHost, CollectorPid]) -> process_flag(trap_exit, true), link(WriterPid), rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), @@ -154,7 +154,8 @@ init([Channel, ReaderPid, WriterPid, Username, VHost]) -> virtual_host = VHost, most_recently_declared_queue = <<>>, consumer_mapping = dict:new(), - blocking = dict:new()}, + blocking = dict:new(), + queue_collector_pid = CollectorPid}, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. @@ -692,16 +693,17 @@ handle_method(#'queue.declare'{queue = QueueNameBin, nowait = NoWait, arguments = Args}, _, State = #ch { virtual_host = VHostPath, - reader_pid = ReaderPid }) -> + reader_pid = ReaderPid, + queue_collector_pid = CollectorPid}) -> Owner = case ExclusiveDeclare of true -> ReaderPid; false -> none end, %% We use this in both branches, because queue_declare may yet return an %% existing queue. - Finish = + Finish = fun(Q) -> - case Q of + case Q of %% "equivalent" rule. NB: we don't pay attention to %% anything in the arguments table, so for the sake of the %% "equivalent" rule, all tables of arguments are @@ -719,7 +721,7 @@ handle_method(#'queue.declare'{queue = QueueNameBin, rabbit_misc:protocol_error(resource_locked, "cannot obtain exclusive access to locked ~s", [rabbit_misc:rs(QueueName)]); - #amqqueue{name = QueueName} -> + #amqqueue{name = QueueName} -> rabbit_misc:protocol_error(channel_error, "parameters for ~s not equivalent", [rabbit_misc:rs(QueueName)]) @@ -736,7 +738,8 @@ handle_method(#'queue.declare'{queue = QueueNameBin, end, QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), check_configure_permitted(QueueName, State), - Finish(rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, Args, Owner)); + Finish(rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, + Args, Owner, CollectorPid)); Found -> Found end, return_queue_declare_ok(State, NoWait, Q); diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index a6398d76..f14acf14 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -59,7 +59,7 @@ %--------------------------------------------------------------------------- -record(v1, {sock, connection, callback, recv_ref, connection_state, - exclusive_queues}). + queue_collector}). -define(INFO_KEYS, [pid, address, port, peer_address, peer_port, @@ -237,6 +237,7 @@ start_connection(Parent, Deb, Sock, SockTransform) -> erlang:send_after(?HANDSHAKE_TIMEOUT * 1000, self(), handshake_timeout), ProfilingValue = setup_profiling(), + {ok, Collector} = rabbit_reader_queue_collector:start_link(), try mainloop(Parent, Deb, switch_callback( #v1{sock = ClientSock, @@ -249,7 +250,7 @@ start_connection(Parent, Deb, Sock, SockTransform) -> callback = uninitialized_callback, recv_ref = none, connection_state = pre_init, - exclusive_queues = sets:new()}, + queue_collector = Collector}, handshake, 8)) catch Ex -> (if Ex == connection_closed_abruptly -> @@ -318,10 +319,6 @@ mainloop(Parent, Deb, State = #v1{sock= Sock, recv_ref = Ref}) -> end; timeout -> throw({timeout, State#v1.connection_state}); - {notify_exclusive_queue, QPid} -> - mainloop(Parent, Deb, add_exclusive_queue(QPid, State)); - {delete_exclusive_queue, QPid} -> - mainloop(Parent, Deb, delete_exclusive_queue(QPid, State)); {'$gen_call', From, {shutdown, Explanation}} -> {ForceTermination, NewState} = terminate(Explanation, State), gen_server:reply(From, ok), @@ -435,15 +432,14 @@ wait_for_channel_termination(N, TimerRef) -> end. maybe_close(State = #v1{connection_state = closing, - exclusive_queues = ExclusiveQueues}) -> + queue_collector = Collector}) -> case all_channels() of [] -> %% Spec says "Exclusive queues may only be accessed by the current %% connection, and are deleted when that connection closes." %% This does not strictly imply synchrony, but in practice it seems %% to be what people assume. - [gen_server2:call(QPid, {delete, false, false}, infinity) - || QPid <- sets:to_list(ExclusiveQueues)], + rabbit_reader_queue_collector:delete_all(Collector), ok = send_on_channel0(State#v1.sock, #'connection.close_ok'{}), close_connection(State); _ -> State @@ -712,25 +708,16 @@ i(Item, #v1{}) -> %%-------------------------------------------------------------------------- -add_exclusive_queue(QPid, State) -> - Queues = State#v1.exclusive_queues, - State#v1{exclusive_queues = sets:add_element(QPid, Queues)}. - -delete_exclusive_queue(QPid, State) -> - Queues = State#v1.exclusive_queues, - State#v1{exclusive_queues = sets:del_element(QPid, Queues)}. - -%%-------------------------------------------------------------------------- - -send_to_new_channel(Channel, AnalyzedFrame, State) -> +send_to_new_channel(Channel, AnalyzedFrame, + State = #v1{queue_collector = Collector}) -> #v1{sock = Sock, connection = #connection{ frame_max = FrameMax, user = #user{username = Username}, vhost = VHost}} = State, WriterPid = rabbit_writer:start(Sock, Channel, FrameMax), ChPid = rabbit_framing_channel:start_link( - fun rabbit_channel:start_link/5, - [Channel, self(), WriterPid, Username, VHost]), + fun rabbit_channel:start_link/6, + [Channel, self(), WriterPid, Username, VHost, Collector]), put({channel, Channel}, {chpid, ChPid}), put({chpid, ChPid}, {channel, Channel}), ok = rabbit_framing_channel:process(ChPid, AnalyzedFrame). diff --git a/src/rabbit_reader_queue_collector.erl b/src/rabbit_reader_queue_collector.erl new file mode 100644 index 00000000..17f55e7b --- /dev/null +++ b/src/rabbit_reader_queue_collector.erl @@ -0,0 +1,98 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_reader_queue_collector). + +-behaviour(gen_server2). + +-export([start_link/0, notify_exclusive_queue/2, delete_all/1]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-record(state, {exclusive_queues}). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_link/0 :: () -> {'ok', pid()}). +-spec(notify_exclusive_queue/2 :: (pid(), pid()) -> {'ok'}). +-spec(delete_all/1 :: (pid()) -> {'ok'}). + +-endif. + +%%---------------------------------------------------------------------------- + +start_link() -> + gen_server2:start_link(?MODULE, [], []). + +notify_exclusive_queue(CollectorPid, QPid) -> + gen_server2:call(CollectorPid, {notify_exclusive_queue, QPid}, infinity). + +delete_all(CollectorPid) -> + gen_server2:call(CollectorPid, delete_all, infinity). + +%%---------------------------------------------------------------------------- + +init([]) -> + {ok, #state{exclusive_queues = sets:new()}}. + +%%-------------------------------------------------------------------------- + +handle_call({notify_exclusive_queue, QPid}, _From, + State = #state{exclusive_queues = Queues}) -> + erlang:monitor(process, QPid), + {reply, ok, State#state{exclusive_queues = sets:add_element(QPid, Queues)}}; + +handle_call(delete_all, _From, + State = #state{exclusive_queues = ExclusiveQueues}) -> + [rabbit_misc:with_exit_handler( + fun() -> ok end, + fun() -> gen_server2:call(QPid, {delete, false, false}, infinity) end) + || QPid <- sets:to_list(ExclusiveQueues)], + {reply, ok, State}. + +handle_cast(_Msg, State) -> + {noreply, State}. + +handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, + State = #state{exclusive_queues = ExclusiveQueues}) -> + {noreply, State#state{exclusive_queues = + sets:del_element(DownPid, ExclusiveQueues)}}. + +terminate(_Reason, _State) -> + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +%%-------------------------------------------------------------------- diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 08b4cc75..6ed90222 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -788,10 +788,10 @@ test_user_management() -> test_server_status() -> %% create a few things so there is some useful information to list Writer = spawn(fun () -> receive shutdown -> ok end end), - Ch = rabbit_channel:start_link(1, self(), Writer, <<"user">>, <<"/">>), + Ch = rabbit_channel:start_link(1, self(), Writer, <<"user">>, <<"/">>, none), [Q, Q2] = [#amqqueue{} = rabbit_amqqueue:declare( rabbit_misc:r(<<"/">>, queue, Name), - false, false, [], none) || + false, false, [], none, none) || Name <- [<<"foo">>, <<"bar">>]], ok = rabbit_amqqueue:basic_consume(Q, true, Ch, undefined, -- cgit v1.2.1 From 813c6ec2ae4dfeb8d2fb6b1c9f880c9bc549d675 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 13 May 2010 13:04:12 +0100 Subject: Several things: Revert declare/6 to declare/5. Make sure we always shut down the collector. Use the API for queue delete. Rename notify_exclusive_queue to register_. Use gen_server, not gs2. Demonitor before deleting queue. --- src/rabbit_amqqueue.erl | 20 ++++------------ src/rabbit_channel.erl | 16 ++++++++++--- src/rabbit_reader.erl | 4 +++- src/rabbit_reader_queue_collector.erl | 44 ++++++++++++++++++++++------------- src/rabbit_tests.erl | 2 +- 5 files changed, 49 insertions(+), 37 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 3c08d3a1..5030d22d 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -31,7 +31,7 @@ -module(rabbit_amqqueue). --export([start/0, declare/6, delete/3, purge/1]). +-export([start/0, declare/5, delete/3, purge/1]). -export([internal_declare/2, internal_delete/1, maybe_run_queue_via_backing_queue/2, update_ram_duration/1, set_ram_duration_target/2, @@ -65,8 +65,7 @@ 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). -spec(start/0 :: () -> 'ok'). --spec(declare/6 :: - (queue_name(), boolean(), boolean(), amqp_table(), pid(), maybe(pid())) -> +-spec(declare/5 :: (queue_name(), boolean(), boolean(), amqp_table(), maybe(pid())) -> amqqueue()). -spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). -spec(with/2 :: (queue_name(), qfun(A)) -> A | not_found()). @@ -190,7 +189,7 @@ recover_durable_queues(DurableQueues) -> %% shared_or_live_owner(Owner) when is_pid(Owner) -> %% rpc:call(node(Owner), erlang, is_process_alive, [Owner]). -declare(QueueName, Durable, AutoDelete, Args, Owner, CollectorPid) -> +declare(QueueName, Durable, AutoDelete, Args, Owner) -> Q = start_queue_process(#amqqueue{name = QueueName, durable = Durable, auto_delete = AutoDelete, @@ -199,18 +198,7 @@ declare(QueueName, Durable, AutoDelete, Args, Owner, CollectorPid) -> pid = none}), case gen_server2:call(Q#amqqueue.pid, {init, false}) of not_found -> rabbit_misc:not_found(QueueName); - Q1 -> - %% We need to notify the reader within the channel process so that - %% we can be sure there are no outstanding exclusive queues being - %% declared as the connection shuts down. - case Owner of - none -> - Q1; - _ -> - rabbit_reader_queue_collector:notify_exclusive_queue( - CollectorPid, Q#amqqueue.pid), - Q1 - end + Q1 -> Q1 end. internal_declare(Q = #amqqueue{name = QueueName}, Recover) -> diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 66f3717d..7d80743a 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -714,7 +714,18 @@ handle_method(#'queue.declare'{queue = QueueNameBin, auto_delete = AutoDelete %% i.e,. as supplied } -> check_configure_permitted(QueueName, State), - Matched; + %% We need to notify the reader within the channel + %% process so that we can be sure there are no + %% outstanding exclusive queues being declared as the + %% connection shuts down. + case Owner of + none -> + Matched; + _ -> + rabbit_reader_queue_collector:reqgister_exclusive_queue( + CollectorPid, Matched), + Matched + end; %% exclusivity trumps non-equivalence arbitrarily #amqqueue{name = QueueName, exclusive_owner = ExclusiveOwner} when ExclusiveOwner =/= Owner -> @@ -738,8 +749,7 @@ handle_method(#'queue.declare'{queue = QueueNameBin, end, QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), check_configure_permitted(QueueName, State), - Finish(rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, - Args, Owner, CollectorPid)); + Finish(rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, Args, Owner)); Found -> Found end, return_queue_declare_ok(State, NoWait, Q); diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index f14acf14..10939633 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -268,7 +268,9 @@ start_connection(Parent, Deb, Sock, SockTransform) -> %% output to be sent, which results in unnecessary delays. %% %% gen_tcp:close(ClientSock), - teardown_profiling(ProfilingValue) + teardown_profiling(ProfilingValue), + rabbit_reader_queue_collector:shutdown(Collector), + rabbit_misc:unlink_and_capture_exit(Collector) end, done. diff --git a/src/rabbit_reader_queue_collector.erl b/src/rabbit_reader_queue_collector.erl index 17f55e7b..6c86cab8 100644 --- a/src/rabbit_reader_queue_collector.erl +++ b/src/rabbit_reader_queue_collector.erl @@ -31,21 +31,23 @@ -module(rabbit_reader_queue_collector). --behaviour(gen_server2). +-behaviour(gen_server). --export([start_link/0, notify_exclusive_queue/2, delete_all/1]). +-export([start_link/0, register_exclusive_queue/2, delete_all/1, shutdown/1]). -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]). -record(state, {exclusive_queues}). +-include("rabbit.hrl"). + %%---------------------------------------------------------------------------- -ifdef(use_specs). -spec(start_link/0 :: () -> {'ok', pid()}). --spec(notify_exclusive_queue/2 :: (pid(), pid()) -> {'ok'}). +-spec(register_exclusive_queue/2 :: (pid(), pid()) -> {'ok'}). -spec(delete_all/1 :: (pid()) -> {'ok'}). -endif. @@ -53,41 +55,51 @@ %%---------------------------------------------------------------------------- start_link() -> - gen_server2:start_link(?MODULE, [], []). + gen_server:start_link(?MODULE, [], []). -notify_exclusive_queue(CollectorPid, QPid) -> - gen_server2:call(CollectorPid, {notify_exclusive_queue, QPid}, infinity). +register_exclusive_queue(CollectorPid, Q) -> + gen_server:call(CollectorPid, {register_exclusive_queue, Q}, infinity). delete_all(CollectorPid) -> - gen_server2:call(CollectorPid, delete_all, infinity). + gen_server:call(CollectorPid, delete_all, infinity). + +shutdown(CollectorPid) -> + gen_server:call(CollectorPid, shutdown, infinity). %%---------------------------------------------------------------------------- init([]) -> - {ok, #state{exclusive_queues = sets:new()}}. + {ok, #state{exclusive_queues = dict:new()}}. %%-------------------------------------------------------------------------- -handle_call({notify_exclusive_queue, QPid}, _From, +handle_call({register_exclusive_queue, Q}, _From, State = #state{exclusive_queues = Queues}) -> - erlang:monitor(process, QPid), - {reply, ok, State#state{exclusive_queues = sets:add_element(QPid, Queues)}}; + MonitorRef = erlang:monitor(process, Q#amqqueue.pid), + {reply, ok, + State#state{exclusive_queues = dict:append(MonitorRef, Q, Queues)}}; handle_call(delete_all, _From, State = #state{exclusive_queues = ExclusiveQueues}) -> [rabbit_misc:with_exit_handler( fun() -> ok end, - fun() -> gen_server2:call(QPid, {delete, false, false}, infinity) end) - || QPid <- sets:to_list(ExclusiveQueues)], - {reply, ok, State}. + fun() -> + erlang:demonitor(MonitorRef), + rabbit_amqqueue:delete(Q, false, false) + end) + || {MonitorRef, [Q]} <- dict:to_list(ExclusiveQueues)], + {reply, ok, State}; + +handle_call(shutdown, _From, State) -> + {stop, normal, ok, State}. handle_cast(_Msg, State) -> {noreply, State}. -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, +handle_info({'DOWN', MonitorRef, process, _DownPid, _Reason}, State = #state{exclusive_queues = ExclusiveQueues}) -> {noreply, State#state{exclusive_queues = - sets:del_element(DownPid, ExclusiveQueues)}}. + dict:erase(MonitorRef, ExclusiveQueues)}}. terminate(_Reason, _State) -> ok. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 6ed90222..c144d1db 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -791,7 +791,7 @@ test_server_status() -> Ch = rabbit_channel:start_link(1, self(), Writer, <<"user">>, <<"/">>, none), [Q, Q2] = [#amqqueue{} = rabbit_amqqueue:declare( rabbit_misc:r(<<"/">>, queue, Name), - false, false, [], none, none) || + false, false, [], none) || Name <- [<<"foo">>, <<"bar">>]], ok = rabbit_amqqueue:basic_consume(Q, true, Ch, undefined, -- cgit v1.2.1 From ec5d6cc30a6a28461c7084c72aae1d5ae68a4cbb Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 14 May 2010 12:27:12 +0100 Subject: Don't return Matched on both branches. --- src/rabbit_channel.erl | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 7d80743a..ad622c36 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -719,13 +719,11 @@ handle_method(#'queue.declare'{queue = QueueNameBin, %% outstanding exclusive queues being declared as the %% connection shuts down. case Owner of - none -> - Matched; - _ -> - rabbit_reader_queue_collector:reqgister_exclusive_queue( - CollectorPid, Matched), - Matched - end; + none -> ok; + _ -> rabbit_reader_queue_collector:register_exclusive_queue( + CollectorPid, Matched) + end, + Matched; %% exclusivity trumps non-equivalence arbitrarily #amqqueue{name = QueueName, exclusive_owner = ExclusiveOwner} when ExclusiveOwner =/= Owner -> -- cgit v1.2.1 From ce4ae3a8d8d1165aa5363eac07534260bf11a3b0 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Thu, 3 Jun 2010 12:29:18 +0100 Subject: rabbit:status() now reports the disc type for nodes (disc_only, disc, ram) --- src/rabbit.erl | 4 ++-- src/rabbit_mnesia.erl | 19 ++++++++++++++++--- 2 files changed, 18 insertions(+), 5 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index c389178a..1f88db60 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -193,8 +193,8 @@ -spec(rotate_logs/1 :: (file_suffix()) -> 'ok' | {'error', any()}). -spec(status/0 :: () -> [{running_applications, [{atom(), string(), string()}]} | - {nodes, [erlang_node()]} | - {running_nodes, [erlang_node()]}]). + {nodes, [{erlang_node(), atom()}]} | + {running_nodes, [{erlang_node(), atom()}]}]). -spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). -endif. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 55a6761d..0c458583 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -47,7 +47,7 @@ -ifdef(use_specs). --spec(status/0 :: () -> [{'nodes' | 'running_nodes', [erlang_node()]}]). +-spec(status/0 :: () -> [{'nodes' | 'running_nodes', [{erlang_node(), atom()}]}]). -spec(dir/0 :: () -> file_path()). -spec(ensure_mnesia_dir/0 :: () -> 'ok'). -spec(init/0 :: () -> 'ok'). @@ -64,8 +64,21 @@ %%---------------------------------------------------------------------------- status() -> - [{nodes, mnesia:system_info(db_nodes)}, - {running_nodes, mnesia:system_info(running_db_nodes)}]. + [DiscOnly, Disc, Ram] = [mnesia:table_info(schema, CopyType) + || CopyType <- [disc_only_copies, disc_copies, ram_copies]], + RunningNodes = mnesia:system_info(running_db_nodes), + OnlyRunningNodes = fun(Ns) -> + lists:filter(fun(N) -> lists:member(N, RunningNodes) end, Ns) + end, + TripleTag = fun(DOs, Ds, Rs) -> + [{Name, disc_only} || Name <- DOs] ++ + [{Name, disc} || Name <- Ds] ++ + [{Name, ram} || Name <- Rs] + end, + [RunningDiscOnly, RunningDisc, RunningRam] = lists:map(OnlyRunningNodes, + [DiscOnly, Disc, Ram]), + [{nodes, TripleTag(DiscOnly, Disc, Ram)}, + {running_nodes, TripleTag(RunningDiscOnly, RunningDisc, RunningRam)}]. init() -> ok = ensure_mnesia_running(), -- cgit v1.2.1 From c848fb128c8f751a466465b40e4386554350b0ca Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Fri, 4 Jun 2010 13:34:20 +0100 Subject: changed node status output format --- src/rabbit.erl | 4 ++-- src/rabbit_mnesia.erl | 19 +++++-------------- 2 files changed, 7 insertions(+), 16 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 1f88db60..25fa6b52 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -193,8 +193,8 @@ -spec(rotate_logs/1 :: (file_suffix()) -> 'ok' | {'error', any()}). -spec(status/0 :: () -> [{running_applications, [{atom(), string(), string()}]} | - {nodes, [{erlang_node(), atom()}]} | - {running_nodes, [{erlang_node(), atom()}]}]). + {nodes, [{erlang_node(), [atom()]}]} | + {running_nodes, [atom()]}]). -spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). -endif. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 0c458583..e5cfd026 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -47,7 +47,7 @@ -ifdef(use_specs). --spec(status/0 :: () -> [{'nodes' | 'running_nodes', [{erlang_node(), atom()}]}]). +-spec(status/0 :: () -> [{'nodes' | 'running_nodes', [{erlang_node(), [atom()]}]} | atom()]). -spec(dir/0 :: () -> file_path()). -spec(ensure_mnesia_dir/0 :: () -> 'ok'). -spec(init/0 :: () -> 'ok'). @@ -66,19 +66,10 @@ status() -> [DiscOnly, Disc, Ram] = [mnesia:table_info(schema, CopyType) || CopyType <- [disc_only_copies, disc_copies, ram_copies]], - RunningNodes = mnesia:system_info(running_db_nodes), - OnlyRunningNodes = fun(Ns) -> - lists:filter(fun(N) -> lists:member(N, RunningNodes) end, Ns) - end, - TripleTag = fun(DOs, Ds, Rs) -> - [{Name, disc_only} || Name <- DOs] ++ - [{Name, disc} || Name <- Ds] ++ - [{Name, ram} || Name <- Rs] - end, - [RunningDiscOnly, RunningDisc, RunningRam] = lists:map(OnlyRunningNodes, - [DiscOnly, Disc, Ram]), - [{nodes, TripleTag(DiscOnly, Disc, Ram)}, - {running_nodes, TripleTag(RunningDiscOnly, RunningDisc, RunningRam)}]. + [{nodes, [{disc_only, DiscOnly}, + {disc, Disc}, + {ram, Ram}]}, + {running_nodes, mnesia:system_info(running_db_nodes)}]. init() -> ok = ensure_mnesia_running(), -- cgit v1.2.1 From bded921adb52f2c549805aef7ca2226f0d20136e Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Fri, 4 Jun 2010 13:49:06 +0100 Subject: fixed spec for rabbit:status() --- src/rabbit.erl | 5 +++-- src/rabbit_mnesia.erl | 5 ++++- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 25fa6b52..7a2faa68 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -185,6 +185,7 @@ -type(log_location() :: 'tty' | 'undefined' | string()). -type(file_suffix() :: binary()). +-type(node_type() :: disc_only | disc | ram). -spec(prepare/0 :: () -> 'ok'). -spec(start/0 :: () -> 'ok'). @@ -193,8 +194,8 @@ -spec(rotate_logs/1 :: (file_suffix()) -> 'ok' | {'error', any()}). -spec(status/0 :: () -> [{running_applications, [{atom(), string(), string()}]} | - {nodes, [{erlang_node(), [atom()]}]} | - {running_nodes, [atom()]}]). + {nodes, [{node_type(), [erlang_node()]}]} | + {running_nodes, [erlang_node()]}]). -spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). -endif. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index e5cfd026..b2bfc811 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -47,7 +47,10 @@ -ifdef(use_specs). --spec(status/0 :: () -> [{'nodes' | 'running_nodes', [{erlang_node(), [atom()]}]} | atom()]). +-type(node_type() :: disc_only | disc | ram). + +-spec(status/0 :: () -> [{'nodes', [{node_type(), [erlang_node()]}]} | + {'running_nodes', [erlang_node()]}]). -spec(dir/0 :: () -> file_path()). -spec(ensure_mnesia_dir/0 :: () -> 'ok'). -spec(init/0 :: () -> 'ok'). -- cgit v1.2.1 From a116ebed3824c4a667f15d1eca138e61e395ba1c Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Fri, 4 Jun 2010 16:36:44 +0100 Subject: move bug22597 to a new branch that comes of default --- src/rabbit.erl | 3 ++- src/rabbit_mnesia.erl | 11 +++++++++-- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index c389178a..7a2faa68 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -185,6 +185,7 @@ -type(log_location() :: 'tty' | 'undefined' | string()). -type(file_suffix() :: binary()). +-type(node_type() :: disc_only | disc | ram). -spec(prepare/0 :: () -> 'ok'). -spec(start/0 :: () -> 'ok'). @@ -193,7 +194,7 @@ -spec(rotate_logs/1 :: (file_suffix()) -> 'ok' | {'error', any()}). -spec(status/0 :: () -> [{running_applications, [{atom(), string(), string()}]} | - {nodes, [erlang_node()]} | + {nodes, [{node_type(), [erlang_node()]}]} | {running_nodes, [erlang_node()]}]). -spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index a0b7aa4e..93439d6b 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -47,7 +47,10 @@ -ifdef(use_specs). --spec(status/0 :: () -> [{'nodes' | 'running_nodes', [erlang_node()]}]). +-type(node_type() :: disc_only | disc | ram). + +-spec(status/0 :: () -> [{'nodes', [{node_type(), [erlang_node()]}]} | + {'running_nodes', [erlang_node()]}]). -spec(dir/0 :: () -> file_path()). -spec(ensure_mnesia_dir/0 :: () -> 'ok'). -spec(init/0 :: () -> 'ok'). @@ -64,7 +67,11 @@ %%---------------------------------------------------------------------------- status() -> - [{nodes, mnesia:system_info(db_nodes)}, + [DiscOnly, Disc, Ram] = [mnesia:table_info(schema, CopyType) + || CopyType <- [disc_only_copies, disc_copies, ram_copies]], + [{nodes, [{disc_only, DiscOnly}, + {disc, Disc}, + {ram, Ram}]}, {running_nodes, mnesia:system_info(running_db_nodes)}]. init() -> -- cgit v1.2.1 From 598cf342292fbca660f18155b0653ea454e32f69 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Fri, 4 Jun 2010 17:04:43 +0100 Subject: only include node type entries which are populated --- src/rabbit_mnesia.erl | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 93439d6b..20ee5232 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -67,11 +67,14 @@ %%---------------------------------------------------------------------------- status() -> - [DiscOnly, Disc, Ram] = [mnesia:table_info(schema, CopyType) - || CopyType <- [disc_only_copies, disc_copies, ram_copies]], - [{nodes, [{disc_only, DiscOnly}, - {disc, Disc}, - {ram, Ram}]}, + [{nodes, [{Key, Nodes} || + {Key, CopyType} <- [{disc_only, disc_only_copies}, + {disc, disc_copies}, + {ram, ram_copies}], + begin + Nodes = mnesia:table_info(schema, CopyType), + Nodes =/= [] + end]}, {running_nodes, mnesia:system_info(running_db_nodes)}]. init() -> -- cgit v1.2.1 From 832f8e14c40f0b26c73bbac9f2e68629073b2a22 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 8 Jun 2010 13:45:37 +0100 Subject: Permit binding of durable queues to transient exchanges --- src/rabbit_channel.erl | 4 ---- src/rabbit_exchange.erl | 24 +++++++++++------------- 2 files changed, 11 insertions(+), 17 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 9127c44b..f355bef3 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -934,10 +934,6 @@ binding_action(Fun, ExchangeNameBin, QueueNameBin, RoutingKey, Arguments, not_found, "no binding ~s between ~s and ~s", [RoutingKey, rabbit_misc:rs(ExchangeName), rabbit_misc:rs(QueueName)]); - {error, durability_settings_incompatible} -> - rabbit_misc:protocol_error( - not_allowed, "durability settings of ~s incompatible with ~s", - [rabbit_misc:rs(QueueName), rabbit_misc:rs(ExchangeName)]); ok -> return_ok(State, NoWait, ReturnMethod) end. diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index d237134f..ad6173ad 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -76,7 +76,7 @@ -spec(publish/2 :: (exchange(), delivery()) -> {routing_result(), [pid()]}). -spec(add_binding/5 :: (exchange_name(), queue_name(), routing_key(), amqp_table(), inner_fun()) -> - bind_res() | {'error', 'durability_settings_incompatible'}). + bind_res()). -spec(delete_binding/5 :: (exchange_name(), queue_name(), routing_key(), amqp_table(), inner_fun()) -> bind_res() | {'error', 'binding_not_found'}). @@ -375,19 +375,17 @@ add_binding(ExchangeName, QueueName, RoutingKey, Arguments, InnerFun) -> fun (X, Q, B) -> %% this argument is used to check queue exclusivity; %% in general, we want to fail on that in preference to - %% failing on e.g., the durability being different. + %% anything else InnerFun(X, Q), - if Q#amqqueue.durable and not(X#exchange.durable) -> - {error, durability_settings_incompatible}; - true -> - case mnesia:read({rabbit_route, B}) of - [] -> - sync_binding(B, Q#amqqueue.durable, - fun mnesia:write/3), - {new, X, B}; - [_R] -> - {existing, X, B} - end + case mnesia:read({rabbit_route, B}) of + [] -> + sync_binding(B, + X#exchange.durable and + Q#amqqueue.durable, + fun mnesia:write/3), + {new, X, B}; + [_R] -> + {existing, X, B} end end) of {new, Exchange = #exchange{ type = Type }, Binding} -> -- cgit v1.2.1 From 5a9f0e2becfdd6b2c1811c49e915879973136358 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Fri, 11 Jun 2010 15:07:24 +0100 Subject: using an empty queue name when there's no previously declared queue returns not-found rather than not-allowed --- src/rabbit_channel.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 58c56cc0..cfaaf533 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -344,7 +344,7 @@ with_exclusive_access_or_die(QName, ReaderPid, F) -> expand_queue_name_shortcut(<<>>, #ch{ most_recently_declared_queue = <<>> }) -> rabbit_misc:protocol_error( - not_allowed, "no previously declared queue", []); + not_found, "no previously declared queue", []); expand_queue_name_shortcut(<<>>, #ch{ virtual_host = VHostPath, most_recently_declared_queue = MRDQ }) -> rabbit_misc:r(VHostPath, queue, MRDQ); @@ -354,7 +354,7 @@ expand_queue_name_shortcut(QueueNameBin, #ch{ virtual_host = VHostPath }) -> expand_routing_key_shortcut(<<>>, <<>>, #ch{ most_recently_declared_queue = <<>> }) -> rabbit_misc:protocol_error( - not_allowed, "no previously declared queue", []); + not_found, "no previously declared queue", []); expand_routing_key_shortcut(<<>>, <<>>, #ch{ most_recently_declared_queue = MRDQ }) -> MRDQ; -- cgit v1.2.1 From b801e6b5fe0c5e4279320a4055d5d72b0c139ec2 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 18 Jun 2010 16:32:10 +0100 Subject: Make use of 0.9.1 error constants --- src/rabbit_channel.erl | 16 +++++----------- src/rabbit_router.erl | 4 ++-- 2 files changed, 7 insertions(+), 13 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 1ab34f86..95c26e95 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -443,17 +443,11 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, rabbit_exchange:publish( Exchange, rabbit_basic:delivery(Mandatory, Immediate, TxnKey, Message)), - case RoutingRes of - routed -> - ok; - unroutable -> - %% FIXME: 312 should be replaced by the ?NO_ROUTE - %% definition, when we move to >=0-9 - ok = basic_return(Message, WriterPid, 312, <<"unroutable">>); - not_delivered -> - %% FIXME: 313 should be replaced by the ?NO_CONSUMERS - %% definition, when we move to >=0-9 - ok = basic_return(Message, WriterPid, 313, <<"not_delivered">>) + if + RoutingRes == routed -> ok; + true -> + {_ShouldClose, Code, Text} = rabbit_framing:lookup_amqp_exception(RoutingRes), + ok = basic_return(Message, WriterPid, Code, Text) end, {noreply, case TxnKey of none -> State; diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl index 5cd15a94..e09aaba7 100644 --- a/src/rabbit_router.erl +++ b/src/rabbit_router.erl @@ -104,6 +104,6 @@ fold_deliveries({Pid, true},{_, Handled}) -> {true, [Pid|Handled]}; fold_deliveries({_, false},{_, Handled}) -> {true, Handled}. %% check_delivery(Mandatory, Immediate, {WasRouted, QPids}) -check_delivery(true, _ , {false, []}) -> {unroutable, []}; -check_delivery(_ , true, {_ , []}) -> {not_delivered, []}; +check_delivery(true, _ , {false, []}) -> {no_route, []}; +check_delivery(_ , true, {_ , []}) -> {no_consumers, []}; check_delivery(_ , _ , {_ , Qs}) -> {routed, Qs}. -- cgit v1.2.1 From a81e180252e16aa3a1a1a226033c6efda14ce67b Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 18 Jun 2010 18:02:46 +0100 Subject: Make use of 0.9.1 error constants --- src/rabbit_channel.erl | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 3dfc026b..2f830311 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -444,13 +444,9 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, routed -> ok; unroutable -> - %% FIXME: 312 should be replaced by the ?NO_ROUTE - %% definition, when we move to >=0-9 - ok = basic_return(Message, WriterPid, 312, <<"unroutable">>); + ok = basic_return(Message, WriterPid, ?NO_ROUTE, <<"unroutable">>); not_delivered -> - %% FIXME: 313 should be replaced by the ?NO_CONSUMERS - %% definition, when we move to >=0-9 - ok = basic_return(Message, WriterPid, 313, <<"not_delivered">>) + ok = basic_return(Message, WriterPid, ?NO_CONSUMERS, <<"not_delivered">>) end, {noreply, case TxnKey of none -> State; -- cgit v1.2.1 From cdf6154e80ca17bfcbb290484cc496493b08829e Mon Sep 17 00:00:00 2001 From: David Wragg Date: Mon, 28 Jun 2010 12:19:30 +0100 Subject: Changes from bug18062 --- packaging/macports/Portfile.in | 3 +-- packaging/macports/make-port-diff.sh | 27 +++++++++++++++++++++++++++ 2 files changed, 28 insertions(+), 2 deletions(-) create mode 100644 packaging/macports/make-port-diff.sh diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in index 153727be..b0158ab0 100644 --- a/packaging/macports/Portfile.in +++ b/packaging/macports/Portfile.in @@ -4,9 +4,8 @@ PortSystem 1.0 name rabbitmq-server version @VERSION@ -revision 1 categories net -maintainers rabbitmq.com:tonyg +maintainers paperplanes.de:meyer rabbitmq.com:tonyg openmaintainer platforms darwin description The RabbitMQ AMQP Server long_description \ diff --git a/packaging/macports/make-port-diff.sh b/packaging/macports/make-port-diff.sh new file mode 100644 index 00000000..3eb1b9f5 --- /dev/null +++ b/packaging/macports/make-port-diff.sh @@ -0,0 +1,27 @@ +#!/bin/bash + +# This script grabs the latest rabbitmq-server bits from the main +# macports subversion repo, and from the rabbitmq.com macports repo, +# and produces a diff from the former to the latter for submission +# through the macports trac. + +set -e + +dir=/tmp/$(basename $0).$$ +mkdir -p $dir/macports $dir/rabbitmq + +# Get the files from the macports subversion repo +cd $dir/macports +svn checkout http://svn.macports.org/repository/macports/trunk/dports/net/rabbitmq-server/ 2>&1 >/dev/null + +# Clear out the svn $id tag +sed -i -e 's|^# \$.*$|# $Id$|' rabbitmq-server/Portfile + +# Get the files from the rabbitmq.com macports repo +cd ../rabbitmq +curl -s http://www.rabbitmq.com/releases/macports/net/rabbitmq-server.tgz | tar xzf - + +cd .. +diff -Naur --exclude=.svn macports rabbitmq +cd / +rm -rf $dir -- cgit v1.2.1 From 91fcaa3520f00ba0ed3d3cea870b2c1f34cb496b Mon Sep 17 00:00:00 2001 From: David Wragg Date: Mon, 28 Jun 2010 12:19:30 +0100 Subject: Add the patch to get rabbitmq-server to build under R14A --- packaging/macports/Makefile | 1 + packaging/macports/Portfile.in | 2 ++ packaging/macports/erlang-r14a-build-fix.diff | 15 +++++++++++++++ 3 files changed, 18 insertions(+) create mode 100644 packaging/macports/erlang-r14a-build-fix.diff diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile index 4ad4c30b..38099bdd 100644 --- a/packaging/macports/Makefile +++ b/packaging/macports/Makefile @@ -35,6 +35,7 @@ macports: dirs $(DEST)/Portfile for f in rabbitmq-asroot-script-wrapper rabbitmq-script-wrapper ; do \ cp $(COMMON_DIR)/$$f $(DEST)/files ; \ done + cp erlang-r14a-build-fix.diff $(DEST)/files sed -i -e 's|@SU_RABBITMQ_SH_C@|SHELL=/bin/sh su -m rabbitmq -c|' \ $(DEST)/files/rabbitmq-script-wrapper cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in index b0158ab0..35e438d9 100644 --- a/packaging/macports/Portfile.in +++ b/packaging/macports/Portfile.in @@ -4,6 +4,7 @@ PortSystem 1.0 name rabbitmq-server version @VERSION@ +revision 2 categories net maintainers paperplanes.de:meyer rabbitmq.com:tonyg openmaintainer platforms darwin @@ -21,6 +22,7 @@ checksums \ md5 @md5@ \ sha1 @sha1@ \ rmd160 @rmd160@ +patchfiles erlang-r14a-build-fix.diff depends_build port:erlang port:xmlto port:libxslt depends_run port:erlang diff --git a/packaging/macports/erlang-r14a-build-fix.diff b/packaging/macports/erlang-r14a-build-fix.diff new file mode 100644 index 00000000..bf61cac3 --- /dev/null +++ b/packaging/macports/erlang-r14a-build-fix.diff @@ -0,0 +1,15 @@ +fix syntax error that prevented compilation under Erlang/OTP R14A + +diff --git src/rabbit_exchange.erl.orig src/rabbit_exchange.erl +--- src/rabbit_exchange.erl.orig ++++ src/rabbit_exchange.erl +@@ -100,7 +100,7 @@ + + %%---------------------------------------------------------------------------- + +--define(INFO_KEYS, [name, type, durable, auto_delete, arguments]. ++-define(INFO_KEYS, [name, type, durable, auto_delete, arguments]). + + recover() -> + Exs = rabbit_misc:table_fold( + -- cgit v1.2.1 From b8b36d27dc2c30087215685a545f381a9c4d3dc4 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 28 Jun 2010 18:29:09 +0100 Subject: 0-9-1 error codes in a multi-prococol broker --- src/rabbit_framing_channel.erl | 33 +++++++++++++++++++++------------ src/rabbit_reader.erl | 6 ------ 2 files changed, 21 insertions(+), 18 deletions(-) diff --git a/src/rabbit_framing_channel.erl b/src/rabbit_framing_channel.erl index c30cf451..64cfbd0b 100644 --- a/src/rabbit_framing_channel.erl +++ b/src/rabbit_framing_channel.erl @@ -73,15 +73,24 @@ read_frame(ChannelPid) -> end. mainloop(ChannelPid, Protocol) -> - {method, MethodName, FieldsBin} = read_frame(ChannelPid), - Method = rabbit_framing:decode_method_fields(MethodName, FieldsBin, - Protocol), - case rabbit_framing:method_has_content(MethodName) of - true -> rabbit_channel:do(ChannelPid, Method, - collect_content(ChannelPid, MethodName)); - false -> rabbit_channel:do(ChannelPid, Method) - end, - ?MODULE:mainloop(ChannelPid, Protocol). + Decoded = read_frame(ChannelPid), + case Decoded of + {method, MethodName, FieldsBin} -> + Method = rabbit_framing:decode_method_fields(MethodName, FieldsBin, + Protocol), + case rabbit_framing:method_has_content(MethodName) of + true -> rabbit_channel:do(ChannelPid, Method, + collect_content(ChannelPid, + MethodName)); + false -> rabbit_channel:do(ChannelPid, Method) + end, + ?MODULE:mainloop(ChannelPid, Protocol); + _ -> + rabbit_misc:protocol_error( + unexpected_frame, + "expected method frame, got ~p instead", + [Decoded]) + end. collect_content(ChannelPid, MethodName) -> %% Protocol does not matter as we only want the class ID to match @@ -96,14 +105,14 @@ collect_content(ChannelPid, MethodName) -> payload_fragments_rev = Payload}; true -> rabbit_misc:protocol_error( - command_invalid, + unexpected_frame, "expected content header for class ~w, " "got one for class ~w instead", [ClassId, HeaderClassId]) end; _ -> rabbit_misc:protocol_error( - command_invalid, + unexpected_frame, "expected content header for class ~w, " "got non content header frame instead", [ClassId]) @@ -119,7 +128,7 @@ collect_content_payload(ChannelPid, RemainingByteCount, Acc) -> [FragmentBin | Acc]); _ -> rabbit_misc:protocol_error( - command_invalid, + unexpected_frame, "expected content body, got non content body frame instead", []) end. diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index eba738f3..19600edf 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -825,12 +825,6 @@ map_exception(Channel, Reason, Protocol) -> end, {ShouldClose, CloseChannel, CloseMethod}. -%% FIXME: this clause can go when we move to AMQP spec >=8.1 -lookup_amqp_exception(#amqp_error{name = precondition_failed, - explanation = Expl, - method = Method}) -> - ExplBin = amqp_exception_explanation(<<"PRECONDITION_FAILED">>, Expl), - {false, 406, ExplBin, Method}; lookup_amqp_exception(#amqp_error{name = Name, explanation = Expl, method = Method}) -> -- cgit v1.2.1 From f5825d920fe4813842bf73887cf73f1c3f3d0d89 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 29 Jun 2010 16:08:59 +0100 Subject: Test --- README.in | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.in b/README.in index 0e70d0e7..e473cc36 100644 --- a/README.in +++ b/README.in @@ -1,4 +1,4 @@ -Please see http://www.rabbitmq.com/build-server.html for build +fwjkfenwjwefnfwefnjkfPlease see http://www.rabbitmq.com/build-server.html for build instructions. For your convenience, a text copy of these instructions is available -- cgit v1.2.1 From d5c6d4ca9436e53da8ac00c7b29d0deafd8aaab7 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Thu, 15 Jul 2010 13:31:39 +0100 Subject: added exref option to systools:make_script *WARNING*s are emitted when plugins reference undefined functions --- src/rabbit_plugin_activator.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_plugin_activator.erl b/src/rabbit_plugin_activator.erl index ef3c5cc2..a8797472 100644 --- a/src/rabbit_plugin_activator.erl +++ b/src/rabbit_plugin_activator.erl @@ -92,7 +92,7 @@ start() -> %% Compile the script ScriptFile = RootName ++ ".script", - case systools:make_script(RootName, [local, silent]) of + case systools:make_script(RootName, [local, silent, exref]) of {ok, Module, Warnings} -> %% This gets lots of spurious no-source warnings when we %% have .ez files, so we want to supress them to prevent -- cgit v1.2.1 From ecdacd7db233ab863ea4f5608082e475f3fb0d75 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 20 Jul 2010 09:36:37 +0100 Subject: initial break-for-some warnings support in plugin activator --- src/rabbit_plugin_activator.erl | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/src/rabbit_plugin_activator.erl b/src/rabbit_plugin_activator.erl index a8797472..43e85694 100644 --- a/src/rabbit_plugin_activator.erl +++ b/src/rabbit_plugin_activator.erl @@ -94,6 +94,21 @@ start() -> ScriptFile = RootName ++ ".script", case systools:make_script(RootName, [local, silent, exref]) of {ok, Module, Warnings} -> + %% These are unrecoverable warnings. Even if make_script + %% doesn't think they're errors, we treat them as such. + ProbablyBadNews = [W || {warning, W} <- Warnings, + case W of + {exref_undef, _} -> true; + _ -> false + end], + case ProbablyBadNews of + [_] -> + io:format("~p~n", [ProbablyBadNews]), + error("generation of boot script file ~s failed:~n~s", + [ScriptFile, rabbit_format_error( + [{error, W} || W <- ProbablyBadNews])]); + _ -> ok + end, %% This gets lots of spurious no-source warnings when we %% have .ez files, so we want to supress them to prevent %% hiding real issues. On Ubuntu, we also get warnings @@ -138,6 +153,17 @@ start() -> stop() -> ok. +rabbit_format_error([E | Es]) -> + rabbit_format_error(E), + rabbit_format_error(Es); +rabbit_format_error([]) -> + ok; +rabbit_format_error({error, {exref_undef, Fs}}) -> + [io:format("*ERROR* Undefined function ~p~n", [F]) || F <- Fs]; +rabbit_format_error({error, E}) -> + io:format("*ERROR* ~p~n", [E]). + + get_env(Key, Default) -> case application:get_env(rabbit, Key) of {ok, V} -> V; -- cgit v1.2.1 From 8a5cb86240af09f7568ee6d4be21a8f845b5ab01 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 20 Jul 2010 10:09:01 +0100 Subject: rabbit_plugin_activator blows up on xref_undef warnings --- src/rabbit_plugin_activator.erl | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/src/rabbit_plugin_activator.erl b/src/rabbit_plugin_activator.erl index 43e85694..f0e2c815 100644 --- a/src/rabbit_plugin_activator.erl +++ b/src/rabbit_plugin_activator.erl @@ -103,7 +103,6 @@ start() -> end], case ProbablyBadNews of [_] -> - io:format("~p~n", [ProbablyBadNews]), error("generation of boot script file ~s failed:~n~s", [ScriptFile, rabbit_format_error( [{error, W} || W <- ProbablyBadNews])]); @@ -154,14 +153,14 @@ stop() -> ok. rabbit_format_error([E | Es]) -> - rabbit_format_error(E), - rabbit_format_error(Es); + [rabbit_format_error(E) | rabbit_format_error(Es)]; rabbit_format_error([]) -> - ok; + []; rabbit_format_error({error, {exref_undef, Fs}}) -> - [io:format("*ERROR* Undefined function ~p~n", [F]) || F <- Fs]; + [io_lib:format("*ERROR* Undefined function ~p:~p/~p~n", + [M, F, A]) || {M, F, A} <- Fs]; rabbit_format_error({error, E}) -> - io:format("*ERROR* ~p~n", [E]). + io_lib:format("*ERROR* ~p~n", [E]). get_env(Key, Default) -> -- cgit v1.2.1 From 453921e99c1bff9be90b5354ef2e7eb9e71ee74f Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 20 Jul 2010 23:02:46 +0100 Subject: simplified code --- src/rabbit_plugin_activator.erl | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/src/rabbit_plugin_activator.erl b/src/rabbit_plugin_activator.erl index f0e2c815..94ee3fd5 100644 --- a/src/rabbit_plugin_activator.erl +++ b/src/rabbit_plugin_activator.erl @@ -96,11 +96,7 @@ start() -> {ok, Module, Warnings} -> %% These are unrecoverable warnings. Even if make_script %% doesn't think they're errors, we treat them as such. - ProbablyBadNews = [W || {warning, W} <- Warnings, - case W of - {exref_undef, _} -> true; - _ -> false - end], + ProbablyBadNews = [W || {warning, W = {exref_undef, _}} <- Warnings], case ProbablyBadNews of [_] -> error("generation of boot script file ~s failed:~n~s", @@ -152,10 +148,8 @@ start() -> stop() -> ok. -rabbit_format_error([E | Es]) -> - [rabbit_format_error(E) | rabbit_format_error(Es)]; -rabbit_format_error([]) -> - []; +rabbit_format_error(Es) when is_list(Es) -> + [rabbit_format_error(E) || E <- Es]; rabbit_format_error({error, {exref_undef, Fs}}) -> [io_lib:format("*ERROR* Undefined function ~p:~p/~p~n", [M, F, A]) || {M, F, A} <- Fs]; -- cgit v1.2.1 From 1526905ad4fc15b006b45fb6cf796b1fbca9f0d4 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 2 Aug 2010 14:35:00 +0100 Subject: switched to new_ssl --- src/rabbit_misc.erl | 9 +++++ src/rabbit_networking.erl | 61 +++++++++++++++++++++++-------- src/tcp_acceptor.erl | 92 ++++++++++++++++++++++++++++------------------- src/tcp_listener.erl | 28 ++++++++++----- src/tcp_listener_sup.erl | 14 ++++---- 5 files changed, 139 insertions(+), 65 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 7543ae5b..af800072 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -64,12 +64,15 @@ -export([version_compare/2, version_compare/3]). -export([recursive_delete/1, dict_cons/3, orddict_cons/3, unlink_and_capture_exit/1]). +-export([get_real_sock/1]). -import(mnesia). -import(lists). -import(cover). -import(disk_log). +-include_lib("ssl/src/ssl_int.hrl"). + %%---------------------------------------------------------------------------- -ifdef(use_specs). @@ -186,6 +189,7 @@ -spec(orddict_cons/3 :: (any(), any(), orddict:dictionary()) -> orddict:dictionary()). -spec(unlink_and_capture_exit/1 :: (pid()) -> 'ok'). +-spec(get_real_sock/1 :: (#sslsocket{}) -> any()). -endif. @@ -705,3 +709,8 @@ unlink_and_capture_exit(Pid) -> receive {'EXIT', Pid, _} -> ok after 0 -> ok end. + +get_real_sock(#sslsocket{pid = {Sock, _}}) -> + Sock; +get_real_sock(Sock) -> + Sock. diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index 3a3357ba..fc810410 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -46,6 +46,8 @@ -include("rabbit.hrl"). -include_lib("kernel/include/inet.hrl"). +-include_lib("ssl/src/ssl_int.hrl"). +-include_lib("ssl/src/ssl_internal.hrl"). -define(RABBIT_TCP_OPTS, [ binary, @@ -151,13 +153,15 @@ check_tcp_listener_address(NamePrefix, Host, Port) -> start_tcp_listener(Host, Port) -> start_listener(Host, Port, "TCP Listener", - {?MODULE, start_client, []}). + {?MODULE, start_client, []}, + tcp). start_ssl_listener(Host, Port, SslOpts) -> start_listener(Host, Port, "SSL Listener", - {?MODULE, start_ssl_client, [SslOpts]}). + {?MODULE, start_ssl_client, []}, + {ssl, SslOpts}). -start_listener(Host, Port, Label, OnConnect) -> +start_listener(Host, Port, Label, OnConnect, Kind) -> {IPAddress, Name} = check_tcp_listener_address(rabbit_tcp_listener_sup, Host, Port), {ok,_} = supervisor:start_child( @@ -167,7 +171,7 @@ start_listener(Host, Port, Label, OnConnect) -> [IPAddress, Port, ?RABBIT_TCP_OPTS , {?MODULE, tcp_listener_started, []}, {?MODULE, tcp_listener_stopped, []}, - OnConnect, Label]}, + OnConnect, Label, Kind]}, transient, infinity, supervisor, [tcp_listener_sup]}), ok. @@ -212,20 +216,28 @@ start_client(Sock, SockTransform) -> start_client(Sock) -> start_client(Sock, fun (S) -> {ok, S} end). -start_ssl_client(SslOpts, Sock) -> +start_ssl_client(Sock, SSLListenSocket) -> start_client( Sock, fun (Sock1) -> - case catch ssl:ssl_accept(Sock1, SslOpts, ?SSL_TIMEOUT * 1000) of - {ok, SslSock} -> - rabbit_log:info("upgraded TCP connection ~p to SSL~n", - [self()]), - {ok, #ssl_socket{tcp = Sock1, ssl = SslSock}}; + #sslsocket{pid = {LSock, {config, SslOpts, _, _, _, _}}} = SSLListenSocket, + EmOptions = [mode, packet, active, header, packet_size], + {ok, SockOptions} = inet:getopts(LSock, EmOptions), + case mock_transport_accept(SslOpts, Sock1, SockOptions) of + {ok, NewSSLListenSocket} -> + case catch ssl:ssl_accept(NewSSLListenSocket, + ?SSL_TIMEOUT * 1000) of + ok -> + rabbit_log:info("upgraded TCP connection ~p to SSL~n", + [self()]), + {ok, #ssl_socket{tcp = Sock1, ssl = NewSSLListenSocket}}; + {'EXIT', Reason} -> + {error, {ssl_handshake_failure, Reason}}; + Error -> + {error, {ssl_handshake_error, Error}} + end; {error, Reason} -> - {error, {ssl_upgrade_error, Reason}}; - {'EXIT', Reason} -> - {error, {ssl_upgrade_failure, Reason}} - + {error, {ssl_transport_accept_failure, Reason}} end end). @@ -263,3 +275,24 @@ tcp_host(IPAddress) -> end. cmap(F) -> rabbit_misc:filter_exit_map(F, connections()). + +mock_transport_accept(SslOpts, Sock, SockOptions) -> + {ok, Port} = inet:port(Sock), + ConnArgs = [server, "localhost", Port, Sock, + {SslOpts, socket_options(SockOptions)}, + self(), {gen_tcp, tcp, tcp_closed, tcp_error}], + case ssl_connection_sup:start_child(ConnArgs) of + {ok, Pid} -> + ssl_connection:socket_control(Sock, Pid, gen_tcp); + {error, Why} -> + {error, Why} + end. + +socket_options(InetValues) -> + #socket_options { + mode = proplists:get_value(mode, InetValues), + header = proplists:get_value(header, InetValues), + active = proplists:get_value(active, InetValues), + packet = proplists:get_value(packet, InetValues), + packet_size = proplists:get_value(packet_size, InetValues) + }. diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl index cc4982c9..bc71f965 100644 --- a/src/tcp_acceptor.erl +++ b/src/tcp_acceptor.erl @@ -40,6 +40,8 @@ -record(state, {callback, sock, ref}). +-include_lib("ssl/src/ssl_int.hrl"). + %%-------------------------------------------------------------------- start_link(Callback, LSock) -> @@ -61,42 +63,59 @@ handle_cast(_Msg, State) -> {noreply, State}. handle_info({inet_async, LSock, Ref, {ok, Sock}}, - State = #state{callback={M,F,A}, sock=LSock, ref=Ref}) -> - - %% patch up the socket so it looks like one we got from - %% gen_tcp:accept/1 - {ok, Mod} = inet_db:lookup_socket(LSock), - inet_db:register_socket(Sock, Mod), - - try - %% report - {Address, Port} = inet_op(fun () -> inet:sockname(LSock) end), - {PeerAddress, PeerPort} = inet_op(fun () -> inet:peername(Sock) end), - error_logger:info_msg("accepted TCP connection on ~s:~p from ~s:~p~n", - [inet_parse:ntoa(Address), Port, - inet_parse:ntoa(PeerAddress), PeerPort]), - %% In the event that somebody floods us with connections we can spew - %% the above message at error_logger faster than it can keep up. - %% So error_logger's mailbox grows unbounded until we eat all the - %% memory available and crash. So here's a meaningless synchronous call - %% to the underlying gen_event mechanism - when it returns the mailbox - %% is drained. - gen_event:which_handlers(error_logger), - %% handle - file_handle_cache:release_on_death(apply(M, F, A ++ [Sock])) - catch {inet_error, Reason} -> - gen_tcp:close(Sock), - error_logger:error_msg("unable to accept TCP connection: ~p~n", - [Reason]) - end, - - %% accept more - accept(State); + State = #state{callback={M,F,A}, sock=MaybeSSLSock, ref=Ref}) -> + case rabbit_misc:get_real_sock(MaybeSSLSock) of + LSock -> + %% patch up the socket so it looks like one we got from + %% gen_tcp:accept/1 + {ok, Mod} = inet_db:lookup_socket(LSock), + inet_db:register_socket(Sock, Mod), + + try + %% report + {Address, Port} = inet_op(fun () -> inet:sockname(LSock) end), + {PeerAddress, PeerPort} = inet_op(fun () -> inet:peername(Sock) end), + error_logger:info_msg("accepted TCP connection on ~s:~p from ~s:~p~n", + [inet_parse:ntoa(Address), Port, + inet_parse:ntoa(PeerAddress), PeerPort]), + %% In the event that somebody floods us with connections we can spew + %% the above message at error_logger faster than it can keep up. + %% So error_logger's mailbox grows unbounded until we eat all the + %% memory available and crash. So here's a meaningless synchronous call + %% to the underlying gen_event mechanism - when it returns the mailbox + %% is drained. + gen_event:which_handlers(error_logger), + %% handle + ExtraArgs = [Sock | case MaybeSSLSock of + #sslsocket{} -> [MaybeSSLSock]; + _ -> [] + end], + file_handle_cache:release_on_death(apply(M, F, A ++ ExtraArgs)) + catch {inet_error, Reason} -> + gen_tcp:close(Sock), + error_logger:error_msg("unable to accept TCP connection: ~p~n", + [Reason]) + end, + + %% accept more + accept(State); + _S -> + %io:format("Got a message for the wrong socket.~n"), + %io:format(" Expected ~p, got ~p~n", [_S, LSock]), + {noreply, State} + end; handle_info({inet_async, LSock, Ref, {error, closed}}, - State=#state{sock=LSock, ref=Ref}) -> - %% It would be wrong to attempt to restart the acceptor when we - %% know this will fail. - {stop, normal, State}; + State=#state{sock=MaybeSSLSock, ref=Ref}) -> + case rabbit_types:get_real_sock(MaybeSSLSock) of + LSock -> + %% It would be wrong to attempt to restart the acceptor when we + %% know this will fail. + {stop, normal, State}; + _S -> + %io:format("Got an error for the wrong socket.~n"), + %io:format(" Expected ~p, got ~p~n", [_S, LSock]), + {noreply, State} + end; handle_info(_Info, State) -> {noreply, State}. @@ -112,7 +131,8 @@ inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). accept(State = #state{sock=LSock}) -> ok = file_handle_cache:obtain(), - case prim_inet:async_accept(LSock, -1) of + case prim_inet:async_accept( + rabbit_misc:get_real_sock(LSock), -1) of {ok, Ref} -> {noreply, State#state{ref=Ref}}; Error -> {stop, {cannot_accept, Error}, State} end. diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl index 73ef9586..1b40cf3c 100644 --- a/src/tcp_listener.erl +++ b/src/tcp_listener.erl @@ -33,42 +33,54 @@ -behaviour(gen_server). --export([start_link/8]). +-export([start_link/9]). -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]). -record(state, {sock, on_startup, on_shutdown, label}). +-include_lib("ssl/src/ssl_int.hrl"). + %%-------------------------------------------------------------------- start_link(IPAddress, Port, SocketOpts, ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label) -> + OnStartup, OnShutdown, Label, Kind) -> gen_server:start_link( ?MODULE, {IPAddress, Port, SocketOpts, ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label}, []). + OnStartup, OnShutdown, Label, Kind}, []). %%-------------------------------------------------------------------- init({IPAddress, Port, SocketOpts, ConcurrentAcceptorCount, AcceptorSup, - {M,F,A} = OnStartup, OnShutdown, Label}) -> + {M,F,A} = OnStartup, OnShutdown, Label, Kind}) -> process_flag(trap_exit, true), - case gen_tcp:listen(Port, SocketOpts ++ [{ip, IPAddress}, - {active, false}]) of + Listen = case Kind of + tcp -> gen_tcp:listen(Port, SocketOpts ++ [{ip, IPAddress}, + {active, false}]); + {ssl, SslOpts} -> + ssl:listen(Port, + SocketOpts + ++ [{ip, IPAddress}, {active, false}] + ++ SslOpts); + E -> {stop, {unknown_listen_kind, IPAddress, Port, E}} + end, + case Listen of {ok, LSock} -> lists:foreach(fun (_) -> {ok, _APid} = supervisor:start_child( AcceptorSup, [LSock]) end, lists:duplicate(ConcurrentAcceptorCount, dummy)), - {ok, {LIPAddress, LPort}} = inet:sockname(LSock), + LSockReal = rabbit_misc:get_real_sock(LSock), + {ok, {LIPAddress, LPort}} = inet:sockname(LSockReal), error_logger:info_msg("started ~s on ~s:~p~n", [Label, inet_parse:ntoa(LIPAddress), LPort]), apply(M, F, A ++ [IPAddress, Port]), - {ok, #state{sock = LSock, + {ok, #state{sock = LSockReal, on_startup = OnStartup, on_shutdown = OnShutdown, label = Label}}; {error, Reason} -> diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl index 493925ef..1f635f60 100644 --- a/src/tcp_listener_sup.erl +++ b/src/tcp_listener_sup.erl @@ -33,23 +33,23 @@ -behaviour(supervisor). --export([start_link/7, start_link/8]). +-export([start_link/8, start_link/9]). -export([init/1]). start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, Label) -> + AcceptCallback, Label, Kind) -> start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, 1, Label). + AcceptCallback, 1, Label, Kind). start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label) -> + AcceptCallback, ConcurrentAcceptorCount, Label, Kind) -> supervisor:start_link( ?MODULE, {IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}). + AcceptCallback, ConcurrentAcceptorCount, Label, Kind}). init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}) -> + AcceptCallback, ConcurrentAcceptorCount, Label, Kind}) -> %% This is gross. The tcp_listener needs to know about the %% tcp_acceptor_sup, and the only way I can think of accomplishing %% that without jumping through hoops is to register the @@ -62,5 +62,5 @@ init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown, {tcp_listener, {tcp_listener, start_link, [IPAddress, Port, SocketOpts, ConcurrentAcceptorCount, Name, - OnStartup, OnShutdown, Label]}, + OnStartup, OnShutdown, Label, Kind]}, transient, 16#ffffffff, worker, [tcp_listener]}]}}. -- cgit v1.2.1 From fa440d982ce2a4ecfdcbd5cf984a594ba9f87836 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 2 Aug 2010 14:41:58 +0100 Subject: typo --- src/tcp_acceptor.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl index bc71f965..52529ded 100644 --- a/src/tcp_acceptor.erl +++ b/src/tcp_acceptor.erl @@ -106,7 +106,7 @@ handle_info({inet_async, LSock, Ref, {ok, Sock}}, end; handle_info({inet_async, LSock, Ref, {error, closed}}, State=#state{sock=MaybeSSLSock, ref=Ref}) -> - case rabbit_types:get_real_sock(MaybeSSLSock) of + case rabbit_misc:get_real_sock(MaybeSSLSock) of LSock -> %% It would be wrong to attempt to restart the acceptor when we %% know this will fail. -- cgit v1.2.1 From 342be334cd57d774471b1390e7ba69a05003dcbf Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 18 Aug 2010 12:57:34 +0100 Subject: eliminate duplicate write messages completely, and simply rely on the pending write count in the cur ets file cache to indicate the delta to the refcount --- src/rabbit_msg_store.erl | 41 +++++++++++++++++++++++++---------------- 1 file changed, 25 insertions(+), 16 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 5bc1f9d5..ecc3c5b3 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -316,8 +316,11 @@ start_link(Server, Dir, ClientRefs, StartupFunState) -> write(Server, Guid, Msg, CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts }) -> - ok = update_msg_cache(CurFileCacheEts, Guid, Msg), - {gen_server2:cast(Server, {write, Guid, Msg}), CState}. + {ok, [Old, _New]} = update_msg_cache(CurFileCacheEts, Guid, Msg), + {case Old of + 0 -> gen_server2:cast(Server, {write, Guid, Msg}); + _ -> ok + end, CState}. read(Server, Guid, CState = #client_msstate { dedup_cache_ets = DedupCacheEts, @@ -618,16 +621,18 @@ handle_cast({write, Guid, Msg}, sum_file_size = SumFileSize, file_summary_ets = FileSummaryEts, cur_file_cache_ets = CurFileCacheEts }) -> - true = 0 =< ets:update_counter(CurFileCacheEts, Guid, {3, -1}), + [RefCount, 0] = + ets:update_counter(CurFileCacheEts, Guid, [{3, 0}, {3, 0, 0, 0}]), case index_lookup(Guid, State) of not_found -> %% New message, lots to do + true = RefCount > 0, {ok, CurOffset} = file_handle_cache:current_virtual_offset(CurHdl), {ok, TotalSize} = rabbit_msg_file:append(CurHdl, Guid, Msg), - ok = index_insert(#msg_location { - guid = Guid, ref_count = 1, file = CurFile, - offset = CurOffset, total_size = TotalSize }, - State), + ok = index_insert( + #msg_location { + guid = Guid, ref_count = RefCount, file = CurFile, + offset = CurOffset, total_size = TotalSize }, State), [#file_summary { valid_total_size = ValidTotalSize, contiguous_top = ContiguousTop, right = undefined, @@ -650,12 +655,12 @@ handle_cast({write, Guid, Msg}, NextOffset, State #msstate { sum_valid_data = SumValid + TotalSize, sum_file_size = SumFileSize + TotalSize })); - #msg_location { ref_count = RefCount } -> + #msg_location { ref_count = RefCountN } -> %% We already know about it, just update counter. Only %% update field otherwise bad interaction with concurrent GC - ok = index_update_fields(Guid, - {#msg_location.ref_count, RefCount + 1}, - State), + ok = + index_update_fields( + Guid, {#msg_location.ref_count, RefCountN + RefCount}, State), noreply(State) end; @@ -957,7 +962,8 @@ safe_ets_update_counter(Tab, Key, UpdateOp, SuccessFun, FailThunk) -> end. safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> - safe_ets_update_counter(Tab, Key, UpdateOp, fun (_) -> ok end, FailThunk). + safe_ets_update_counter(Tab, Key, UpdateOp, + fun (Result) -> {ok, Result} end, FailThunk). %%---------------------------------------------------------------------------- %% file helper functions @@ -1057,15 +1063,16 @@ list_sorted_file_names(Dir, Ext) -> maybe_insert_into_cache(DedupCacheEts, RefCount, Guid, Msg) when RefCount > 1 -> - update_msg_cache(DedupCacheEts, Guid, Msg); + {ok, _} = update_msg_cache(DedupCacheEts, Guid, Msg), + ok; maybe_insert_into_cache(_DedupCacheEts, _RefCount, _Guid, _Msg) -> ok. update_msg_cache(CacheEts, Guid, Msg) -> case ets:insert_new(CacheEts, {Guid, Msg, 1}) of - true -> ok; + true -> {ok, [0, 1]}; false -> safe_ets_update_counter_ok( - CacheEts, Guid, {3, +1}, + CacheEts, Guid, [{3, 0}, {3, +1}], fun () -> update_msg_cache(CacheEts, Guid, Msg) end) end. @@ -1081,7 +1088,9 @@ fetch_and_increment_cache(DedupCacheEts, Guid) -> safe_ets_update_counter_ok( DedupCacheEts, Guid, {3, +1}, %% someone has deleted us in the meantime, insert us - fun () -> ok = update_msg_cache(DedupCacheEts, Guid, Msg) end), + fun () -> + {ok, _} = update_msg_cache(DedupCacheEts, Guid, Msg) + end), Msg end. -- cgit v1.2.1 From ebef1a44a24f614386fe6df591c861e71f0114d8 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 18 Aug 2010 13:15:17 +0100 Subject: Minor tweaks --- src/rabbit_msg_store.erl | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index ecc3c5b3..94775e26 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -316,9 +316,9 @@ start_link(Server, Dir, ClientRefs, StartupFunState) -> write(Server, Guid, Msg, CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts }) -> - {ok, [Old, _New]} = update_msg_cache(CurFileCacheEts, Guid, Msg), - {case Old of - 0 -> gen_server2:cast(Server, {write, Guid, Msg}); + {ok, New} = update_msg_cache(CurFileCacheEts, Guid, Msg), + {case New of + 1 -> gen_server2:cast(Server, {write, Guid, Msg}); _ -> ok end, CState}. @@ -623,10 +623,10 @@ handle_cast({write, Guid, Msg}, cur_file_cache_ets = CurFileCacheEts }) -> [RefCount, 0] = ets:update_counter(CurFileCacheEts, Guid, [{3, 0}, {3, 0, 0, 0}]), + true = RefCount > 0, case index_lookup(Guid, State) of not_found -> %% New message, lots to do - true = RefCount > 0, {ok, CurOffset} = file_handle_cache:current_virtual_offset(CurHdl), {ok, TotalSize} = rabbit_msg_file:append(CurHdl, Guid, Msg), ok = index_insert( @@ -1070,9 +1070,9 @@ maybe_insert_into_cache(_DedupCacheEts, _RefCount, _Guid, _Msg) -> update_msg_cache(CacheEts, Guid, Msg) -> case ets:insert_new(CacheEts, {Guid, Msg, 1}) of - true -> {ok, [0, 1]}; + true -> {ok, 1}; false -> safe_ets_update_counter_ok( - CacheEts, Guid, [{3, 0}, {3, +1}], + CacheEts, Guid, {3, +1}, fun () -> update_msg_cache(CacheEts, Guid, Msg) end) end. -- cgit v1.2.1 From 491b9a279f12d909f281a75d367c384dcdc70cc2 Mon Sep 17 00:00:00 2001 From: David Wragg Date: Wed, 18 Aug 2010 14:52:40 +0100 Subject: Eliminate RABBITMQ_PLUGINS_EXPAND_DIR There were a number of issues with RABBITMQ_PLUGINS_EXPAND_DIR: - It was undocumented in the context of the generic unix package, and if unwisely set could do an effective "rm -rf" in an unintended location. - It did not take account of the possibility that multiple nodes could be starting at once, and so doing plugins activation simultanteously. Instead, use RABBITMQ_MNESIA_DIR/plugins-scratch. This avoids the need to extend the generic unix package documentation, the location is node-specific, and the distinctive plugins-scratch subdirectory reduces the risk of unintended file deletions. --- Makefile | 4 +--- scripts/rabbitmq-server | 6 ++---- scripts/rabbitmq-server.bat | 13 +++++-------- scripts/rabbitmq-service.bat | 13 +++++-------- 4 files changed, 13 insertions(+), 23 deletions(-) diff --git a/Makefile b/Makefile index e060c804..b6f4b7e5 100644 --- a/Makefile +++ b/Makefile @@ -5,7 +5,6 @@ RABBITMQ_NODENAME ?= rabbit RABBITMQ_SERVER_START_ARGS ?= RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia RABBITMQ_LOG_BASE ?= $(TMPDIR) -RABBITMQ_PLUGINS_EXPAND_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-plugins-scratch DEPS_FILE=deps.mk SOURCE_DIR=src @@ -147,8 +146,7 @@ BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\ RABBITMQ_NODE_IP_ADDRESS="$(RABBITMQ_NODE_IP_ADDRESS)" \ RABBITMQ_NODE_PORT="$(RABBITMQ_NODE_PORT)" \ RABBITMQ_LOG_BASE="$(RABBITMQ_LOG_BASE)" \ - RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" \ - RABBITMQ_PLUGINS_EXPAND_DIR="$(RABBITMQ_PLUGINS_EXPAND_DIR)" + RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" run: all $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index d52dc774..9310752f 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -39,7 +39,6 @@ CLUSTER_CONFIG_FILE=/etc/rabbitmq/rabbitmq_cluster.config CONFIG_FILE=/etc/rabbitmq/rabbitmq LOG_BASE=/var/log/rabbitmq MNESIA_BASE=/var/lib/rabbitmq/mnesia -PLUGINS_EXPAND_DIR=/var/lib/rabbitmq/plugins-scratch SERVER_START_ARGS= . `dirname $0`/rabbitmq-env @@ -70,7 +69,6 @@ fi [ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME} [ "x" = "x$RABBITMQ_PLUGINS_DIR" ] && RABBITMQ_PLUGINS_DIR="${RABBITMQ_HOME}/plugins" -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR="${PLUGINS_EXPAND_DIR}" ## Log rotation [ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS=${LOGS} @@ -91,14 +89,14 @@ if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then if erl \ -pa "$RABBITMQ_EBIN_ROOT" \ -rabbit plugins_dir "\"$RABBITMQ_PLUGINS_DIR\"" \ - -rabbit plugins_expand_dir "\"$RABBITMQ_PLUGINS_EXPAND_DIR\"" \ + -rabbit plugins_expand_dir "\"${RABBITMQ_MNESIA_DIR}/plugins-scratch\"" \ -rabbit rabbit_ebin "\"$RABBITMQ_EBIN_ROOT\"" \ -noinput \ -hidden \ -s rabbit_plugin_activator \ -extra "$@" then - RABBITMQ_BOOT_FILE="${RABBITMQ_PLUGINS_EXPAND_DIR}/rabbit" + RABBITMQ_BOOT_FILE="${RABBITMQ_MNESIA_DIR}/plugins-scratch/rabbit" RABBITMQ_EBIN_PATH="" else exit 1 diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index b1a91f47..5bcbc6ba 100644 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -110,24 +110,21 @@ if "!RABBITMQ_MNESIA_DIR!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_BASE!\plugins-scratch -) - "!ERLANG_HOME!\bin\erl.exe" ^ -pa "!RABBITMQ_EBIN_ROOT!" ^ -noinput -hidden ^ -s rabbit_plugin_activator ^ -rabbit plugins_dir \""!RABBITMQ_PLUGINS_DIR:\=/!"\" ^ --rabbit plugins_expand_dir \""!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!"\" ^ +-rabbit plugins_expand_dir \""!RABBITMQ_MNESIA_DIR:\=/!/plugins-scratch"\" ^ -rabbit rabbit_ebin \""!RABBITMQ_EBIN_ROOT:\=/!"\" ^ -extra !STAR! -if not exist "!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit.boot" ( - echo Custom Boot File "!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit.boot" is missing. +set RABBITMQ_BOOT_FILE=!RABBITMQ_MNESIA_DIR!\plugins-scratch\rabbit +if not exist "!RABBITMQ_BOOT_FILE!.boot" ( + echo Custom Boot File "!RABBITMQ_BOOT_FILE!.boot" is missing. exit /B 1 ) -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit + set RABBITMQ_EBIN_PATH= if "!RABBITMQ_CONFIG_FILE!"=="" ( diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat index 95e5eebf..4b3961d4 100644 --- a/scripts/rabbitmq-service.bat +++ b/scripts/rabbitmq-service.bat @@ -180,24 +180,21 @@ if errorlevel 1 ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_BASE!\plugins-scratch -) - "!ERLANG_HOME!\bin\erl.exe" ^ -pa "!RABBITMQ_EBIN_ROOT!" ^ -noinput -hidden ^ -s rabbit_plugin_activator ^ -rabbit plugins_dir \""!RABBITMQ_PLUGINS_DIR:\=/!"\" ^ --rabbit plugins_expand_dir \""!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!"\" ^ +-rabbit plugins_expand_dir \""!RABBITMQ_MNESIA_DIR:\=/!/plugins-scratch"\" ^ -rabbit rabbit_ebin \""!RABBITMQ_EBIN_ROOT:\=/!"\" ^ -extra !STAR! -if not exist "!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit.boot" ( - echo Custom Boot File "!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit.boot" is missing. +set RABBITMQ_BOOT_FILE=!RABBITMQ_MNESIA_DIR!\plugins-scratch\rabbit +if not exist "!RABBITMQ_BOOT_FILE!.boot" ( + echo Custom Boot File "!RABBITMQ_BOOT_FILE!.boot" is missing. exit /B 1 ) -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit + set RABBITMQ_EBIN_PATH= if "!RABBITMQ_CONFIG_FILE!"=="" ( -- cgit v1.2.1 From 1cc92ff440645aab62db9d59078394b69209cfda Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 18 Aug 2010 15:50:42 +0100 Subject: Because we can increment the refcount back above 0, the calculation of the contiguous top needs to be contiguousTop + totalSize, because the validtotalsize can contain data that's well beyond the old contiguous top --- src/rabbit_msg_store.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 03419f2f..fd1fb521 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -830,7 +830,7 @@ add_to_file_summary(#file_summary { valid_total_size = ValidTotalSize, #msstate { file_summary_ets = FileSummaryEts }) -> ValidTotalSize1 = ValidTotalSize + TotalSize, ContiguousTop1 = case Offset =:= ContiguousTop of - true -> ValidTotalSize1; + true -> ContiguousTop + TotalSize; false -> ContiguousTop end, true = -- cgit v1.2.1 From 8580bff7de8e30f5c5f9ef317b5f4ce61463adab Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 18 Aug 2010 15:54:29 +0100 Subject: cosmetic --- src/rabbit_msg_store.erl | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index fd1fb521..af127984 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -829,16 +829,15 @@ add_to_file_summary(#file_summary { valid_total_size = ValidTotalSize, TotalSize, Offset, File, FileSize, #msstate { file_summary_ets = FileSummaryEts }) -> ValidTotalSize1 = ValidTotalSize + TotalSize, - ContiguousTop1 = case Offset =:= ContiguousTop of - true -> ContiguousTop + TotalSize; - false -> ContiguousTop + ContiguousTop1 = case ContiguousTop of + Offset -> ContiguousTop + TotalSize; + _ -> ContiguousTop end, - true = - ets:update_element( - FileSummaryEts, File, - [{#file_summary.valid_total_size, ValidTotalSize1}, - {#file_summary.contiguous_top, ContiguousTop1}, - {#file_summary.file_size, FileSize}]), + true = ets:update_element( + FileSummaryEts, File, + [{#file_summary.valid_total_size, ValidTotalSize1}, + {#file_summary.contiguous_top, ContiguousTop1}, + {#file_summary.file_size, FileSize}]), ok. read_message(Guid, From, -- cgit v1.2.1 From 560c8a6d9c1b6d8a135727fced5026041e9caced Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 18 Aug 2010 16:15:58 +0100 Subject: Abstraction of the inner write function --- src/rabbit_msg_store.erl | 54 +++++++++++++++++++++++------------------------- 1 file changed, 26 insertions(+), 28 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index af127984..28a94a59 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -618,40 +618,15 @@ handle_call({delete_client, CRef}, _From, State #msstate { client_refs = sets:del_element(CRef, ClientRefs) }). handle_cast({write, Guid, Msg}, - State = #msstate { current_file_handle = CurHdl, - current_file = CurFile, - sum_valid_data = SumValid, - sum_file_size = SumFileSize, + State = #msstate { sum_valid_data = SumValid, file_summary_ets = FileSummaryEts, cur_file_cache_ets = CurFileCacheEts }) -> [RefCount, 0] = ets:update_counter(CurFileCacheEts, Guid, [{3, 0}, {3, 0, 0, 0}]), true = RefCount > 0, - Write = - fun () -> - {ok, CurOffset} = - file_handle_cache:current_virtual_offset(CurHdl), - {ok, TotalSize} = rabbit_msg_file:append(CurHdl, Guid, Msg), - ok = index_insert( - #msg_location { - guid = Guid, ref_count = RefCount, file = CurFile, - offset = CurOffset, total_size = TotalSize }, State), - [#file_summary { right = undefined, - locked = false, - file_size = FileSize } = Summary] = - ets:lookup(FileSummaryEts, CurFile), - ok = add_to_file_summary(Summary, TotalSize, CurOffset, CurFile, - FileSize + TotalSize, State), - NextOffset = CurOffset + TotalSize, - noreply( - maybe_roll_to_new_file( - NextOffset, State #msstate { - sum_valid_data = SumValid + TotalSize, - sum_file_size = SumFileSize + TotalSize })) - end, case index_lookup(Guid, State) of not_found -> - Write(); + write_message(Guid, Msg, RefCount, State); #msg_location { ref_count = 0, file = File, offset = Offset, total_size = TotalSize } -> [#file_summary { locked = Locked, @@ -660,7 +635,7 @@ handle_cast({write, Guid, Msg}, case Locked of true -> ok = index_delete(Guid, State), - Write(); + write_message(Guid, Msg, RefCount, State); false -> ok = index_update_fields( Guid, {#msg_location.ref_count, RefCount}, State), @@ -824,6 +799,29 @@ internal_sync(State = #msstate { current_file_handle = CurHdl, State1 #msstate { on_sync = [] } end. +write_message(Guid, Msg, RefCount, + State = #msstate { current_file_handle = CurHdl, + current_file = CurFile, + sum_valid_data = SumValid, + sum_file_size = SumFileSize, + file_summary_ets = FileSummaryEts }) -> + {ok, CurOffset} = file_handle_cache:current_virtual_offset(CurHdl), + {ok, TotalSize} = rabbit_msg_file:append(CurHdl, Guid, Msg), + ok = index_insert( + #msg_location { guid = Guid, ref_count = RefCount, file = CurFile, + offset = CurOffset, total_size = TotalSize }, State), + [#file_summary { right = undefined, + locked = false, + file_size = FileSize } = Summary] = + ets:lookup(FileSummaryEts, CurFile), + ok = add_to_file_summary(Summary, TotalSize, CurOffset, CurFile, + FileSize + TotalSize, State), + NextOffset = CurOffset + TotalSize, + noreply(maybe_roll_to_new_file( + NextOffset, State #msstate { + sum_valid_data = SumValid + TotalSize, + sum_file_size = SumFileSize + TotalSize })). + add_to_file_summary(#file_summary { valid_total_size = ValidTotalSize, contiguous_top = ContiguousTop }, TotalSize, Offset, File, FileSize, -- cgit v1.2.1 From 7bbe6926672d13b7d2bf38451e7f4232fd655559 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 18 Aug 2010 16:24:22 +0100 Subject: By this stage of the client-read, we know a GC can't start and can't be in progress. Thus even if the refcount is 0, we're still safe to read it. What's more, this area of code has never made provision for the index_lookup to return a not_found - it will crash if that happens. Thus if the implicit assumption is that the message must exist, then by the same token, we know the refcount will always be > 0 --- src/rabbit_msg_store.erl | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 28a94a59..21625a5b 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -481,8 +481,7 @@ client_read3(Server, #msg_location { guid = Guid, file = File }, Defer, %% badarg scenario above, but we don't have a missing file %% - we just have the /wrong/ file). case index_lookup(Guid, CState) of - #msg_location { file = File, ref_count = RefCount } = - MsgLocation when RefCount > 0 -> + #msg_location { file = File } = MsgLocation -> %% Still the same file. mark_handle_open(FileHandlesEts, File), -- cgit v1.2.1 From b6a6ea1e8c0b9df45ad1e4e7142211dae3faa9a6 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 18 Aug 2010 16:31:35 +0100 Subject: Abstract refcount == 0 to imply not_found for appropriate call sites --- src/rabbit_msg_store.erl | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 21625a5b..d2fd4a7d 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -334,9 +334,8 @@ read(Server, Guid, Defer = fun() -> {gen_server2:pcall( Server, 2, {read, Guid}, infinity), CState} end, - case index_lookup(Guid, CState) of - Result when Result =:= not_found orelse - (Result #msg_location.ref_count =:= 0) -> + case index_lookup_positive_refcount(Guid, CState) of + not_found -> Defer(); MsgLocation -> client_read1(Server, MsgLocation, Defer, CState) @@ -839,9 +838,8 @@ add_to_file_summary(#file_summary { valid_total_size = ValidTotalSize, read_message(Guid, From, State = #msstate { dedup_cache_ets = DedupCacheEts }) -> - case index_lookup(Guid, State) of - Result when Result =:= not_found orelse - (Result #msg_location.ref_count =:= 0) -> + case index_lookup_positive_refcount(Guid, State) of + not_found -> gen_server2:reply(From, not_found), State; MsgLocation -> @@ -913,9 +911,8 @@ read_from_disk(#msg_location { guid = Guid, ref_count = RefCount, {Msg, State1}. contains_message(Guid, From, State = #msstate { gc_active = GCActive }) -> - case index_lookup(Guid, State) of - Result when Result =:= not_found orelse - (Result #msg_location.ref_count =:= 0) -> + case index_lookup_positive_refcount(Guid, State) of + not_found -> gen_server2:reply(From, false), State; #msg_location { file = File } -> @@ -1141,6 +1138,13 @@ decrement_cache(DedupCacheEts, Guid) -> %% index %%---------------------------------------------------------------------------- +index_lookup_positive_refcount(Key, State) -> + case index_lookup(Key, State) of + not_found -> not_found; + #msg_location { ref_count = 0 } -> not_found; + #msg_location {} = MsgLocation -> MsgLocation + end. + index_lookup(Key, #client_msstate { index_module = Index, index_state = State }) -> Index:lookup(Key, State); -- cgit v1.2.1 From e827f2f682c8807ff1e8643554dc2d326e078a22 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 18 Aug 2010 17:29:35 +0100 Subject: A rather crucial infinity missing --- src/rabbit_amqqueue.erl | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 2453280e..0cdb4fff 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -197,7 +197,8 @@ find_durable_queues() -> recover_durable_queues(DurableQueues) -> Qs = [start_queue_process(Q) || Q <- DurableQueues], - [Q || Q <- Qs, gen_server2:call(Q#amqqueue.pid, {init, true}) == Q]. + [Q || Q <- Qs, + gen_server2:call(Q#amqqueue.pid, {init, true}, infinity) == Q]. declare(QueueName, Durable, AutoDelete, Args, Owner) -> ok = check_declare_arguments(QueueName, Args), -- cgit v1.2.1 From d770fe8386e8b0009a49a8bbaae313da8ac1d1cf Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 18 Aug 2010 17:40:19 +0100 Subject: Don't ever keep the recovery process waiting, regardless of whether the queue is going down or not --- src/rabbit_amqqueue_process.erl | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index d52660c5..2cab7136 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -603,6 +603,7 @@ handle_call({init, Recover}, From, declare(Recover, From, State); _ -> #q{q = #amqqueue{name = QName, durable = IsDurable}, backing_queue = BQ, backing_queue_state = undefined} = State, + gen_server2:reply(From, not_found), case Recover of true -> ok; _ -> rabbit_log:warning( @@ -610,7 +611,7 @@ handle_call({init, Recover}, From, end, BQS = BQ:init(QName, IsDurable, Recover), %% Rely on terminate to delete the queue. - {stop, normal, not_found, State#q{backing_queue_state = BQS}} + {stop, normal, State#q{backing_queue_state = BQS}} end; handle_call(info, _From, State) -> -- cgit v1.2.1 From a3b6cd2e2747abcdac404ff95e35917c7c0efda7 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 18 Aug 2010 22:10:07 +0100 Subject: Cope with removes overtaking writes --- src/rabbit_msg_store.erl | 84 +++++++++++++++++++++++++++--------------------- 1 file changed, 47 insertions(+), 37 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 94775e26..68e19f24 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -899,43 +899,53 @@ contains_message(Guid, From, State = #msstate { gc_active = GCActive }) -> end end. -remove_message(Guid, State = #msstate { sum_valid_data = SumValid, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts }) -> - #msg_location { ref_count = RefCount, file = File, - offset = Offset, total_size = TotalSize } = - index_lookup(Guid, State), - case RefCount of - 1 -> - %% don't remove from CUR_FILE_CACHE_ETS_NAME here because - %% there may be further writes in the mailbox for the same - %% msg. - ok = remove_cache_entry(DedupCacheEts, Guid), - [#file_summary { valid_total_size = ValidTotalSize, - contiguous_top = ContiguousTop, - locked = Locked }] = - ets:lookup(FileSummaryEts, File), - case Locked of - true -> - add_to_pending_gc_completion({remove, Guid}, State); - false -> - ok = index_delete(Guid, State), - ContiguousTop1 = lists:min([ContiguousTop, Offset]), - ValidTotalSize1 = ValidTotalSize - TotalSize, - true = ets:update_element( - FileSummaryEts, File, - [{#file_summary.valid_total_size, ValidTotalSize1}, - {#file_summary.contiguous_top, ContiguousTop1}]), - State1 = delete_file_if_empty(File, State), - State1 #msstate { sum_valid_data = SumValid - TotalSize } - end; - _ when 1 < RefCount -> - ok = decrement_cache(DedupCacheEts, Guid), - %% only update field, otherwise bad interaction with concurrent GC - ok = index_update_fields(Guid, - {#msg_location.ref_count, RefCount - 1}, - State), - State +remove_message(Guid, State = #msstate { cur_file_cache_ets = CurFileCacheEts, + sum_valid_data = SumValid, + file_summary_ets = FileSummaryEts, + dedup_cache_ets = DedupCacheEts }) -> + case index_lookup(Guid, State) of + not_found -> + true = 0 =< ets:update_counter(CurFileCacheEts, Guid, {3, -1}), + State; + #msg_location { ref_count = RefCount, file = File, + offset = Offset, total_size = TotalSize } -> + case RefCount of + 1 -> + %% don't remove from CUR_FILE_CACHE_ETS_NAME here + %% because there may be further writes in the + %% mailbox for the same msg. + ok = remove_cache_entry(DedupCacheEts, Guid), + [#file_summary { valid_total_size = ValidTotalSize, + contiguous_top = ContiguousTop, + locked = Locked }] = + ets:lookup(FileSummaryEts, File), + case Locked of + true -> + add_to_pending_gc_completion({remove, Guid}, + State); + false -> + ok = index_delete(Guid, State), + ContiguousTop1 = lists:min([ContiguousTop, Offset]), + ValidTotalSize1 = ValidTotalSize - TotalSize, + true = ets:update_element( + FileSummaryEts, File, + [{#file_summary.valid_total_size, + ValidTotalSize1}, + {#file_summary.contiguous_top, + ContiguousTop1}]), + State1 = delete_file_if_empty(File, State), + State1 #msstate { + sum_valid_data = SumValid - TotalSize } + end; + _ when 1 < RefCount -> + ok = decrement_cache(DedupCacheEts, Guid), + %% only update field, otherwise bad interaction + %% with concurrent GC + ok = index_update_fields( + Guid, {#msg_location.ref_count, RefCount - 1}, + State), + State + end end. add_to_pending_gc_completion( -- cgit v1.2.1 From 78d41652340b1ffd52cab15a799cf69e374cf00a Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Wed, 18 Aug 2010 23:17:04 +0100 Subject: remove files from junk to aid subsequent merges --- Makefile | 294 ----- codegen.py | 503 --------- docs/examples-to-end.xsl | 94 -- docs/html-to-website-xml.xsl | 91 -- docs/rabbitmq-activate-plugins.1.xml | 60 - docs/rabbitmq-deactivate-plugins.1.xml | 60 - docs/rabbitmq-multi.1.xml | 100 -- docs/rabbitmq-server.1.xml | 143 --- docs/rabbitmq-service.xml | 228 ---- docs/rabbitmq.conf.5.xml | 84 -- docs/rabbitmqctl.1.xml | 1033 ----------------- docs/remove-namespaces.xsl | 17 - docs/usage.xsl | 78 -- generate_deps | 54 - include/rabbit.hrl | 199 ---- include/rabbit_backing_queue_spec.hrl | 63 -- include/rabbit_exchange_type_spec.hrl | 43 - include/rabbit_msg_store_index.hrl | 58 - packaging/RPMS/Fedora/rabbitmq-server.spec | 183 --- packaging/common/rabbitmq-server.ocf | 374 ------ packaging/debs/Debian/debian/changelog | 114 -- packaging/macports/Makefile | 56 - packaging/macports/Portfile.in | 123 -- packaging/macports/erlang-r14a-build-fix.diff | 15 - packaging/macports/make-port-diff.sh | 27 - .../patch-org.macports.rabbitmq-server.plist.diff | 10 - scripts/rabbitmq-multi | 88 -- scripts/rabbitmq-multi.bat | 99 -- scripts/rabbitmq-server | 129 --- scripts/rabbitmq-server.bat | 169 --- scripts/rabbitmq-service.bat | 259 ----- scripts/rabbitmqctl | 50 - scripts/rabbitmqctl.bat | 64 -- src/delegate.erl | 211 ---- src/delegate_sup.erl | 63 -- src/file_handle_cache.erl | 862 -------------- src/gatherer.erl | 145 --- src/intervals.erl | 138 --- src/pg_local.erl | 213 ---- src/rabbit.erl | 523 --------- src/rabbit_access_control.erl | 357 ------ src/rabbit_amqqueue.erl | 404 ------- src/rabbit_amqqueue_process.erl | 844 -------------- src/rabbit_backing_queue.erl | 133 --- src/rabbit_binary_generator.erl | 294 ----- src/rabbit_channel.erl | 1176 ------------------- src/rabbit_control.erl | 379 ------- src/rabbit_disk_backed_queue.erl | 248 ---- src/rabbit_disk_backed_queue_nogen.erl | 202 ---- src/rabbit_error_logger.erl | 88 -- src/rabbit_exchange.erl | 577 ---------- src/rabbit_exchange_type.erl | 65 -- src/rabbit_exchange_type_direct.erl | 65 -- src/rabbit_exchange_type_fanout.erl | 63 -- src/rabbit_exchange_type_headers.erl | 139 --- src/rabbit_exchange_type_registry.erl | 129 --- src/rabbit_exchange_type_topic.erl | 103 -- src/rabbit_framing.erl | 102 -- src/rabbit_framing_channel.erl | 132 --- src/rabbit_invariable_queue.erl | 276 ----- src/rabbit_limiter.erl | 255 ----- src/rabbit_memory_monitor.erl | 294 ----- src/rabbit_mnesia.erl | 466 -------- src/rabbit_msg_store_index.erl | 47 - src/rabbit_persister.erl | 486 -------- src/rabbit_queue_backing_store.erl | 26 - src/rabbit_ram_backed_queue.erl | 114 -- src/rabbit_ram_backed_queue_nogen.erl | 69 -- src/rabbit_reader.erl | 799 ------------- src/rabbit_reader_queue_collector.erl | 115 -- src/rabbit_restartable_sup.erl | 47 - src/rabbit_router.erl | 109 -- src/rabbit_tests.erl | 1187 -------------------- src/rabbit_writer.erl | 223 ---- src/speed_test_queue_backends.erl | 97 -- src/supervisor2.erl | 917 --------------- src/test_intervals.erl | 144 --- src/worker_pool.erl | 155 --- src/worker_pool_sup.erl | 69 -- src/worker_pool_worker.erl | 118 -- 80 files changed, 18630 deletions(-) delete mode 100644 Makefile delete mode 100644 codegen.py delete mode 100644 docs/examples-to-end.xsl delete mode 100644 docs/html-to-website-xml.xsl delete mode 100644 docs/rabbitmq-activate-plugins.1.xml delete mode 100644 docs/rabbitmq-deactivate-plugins.1.xml delete mode 100644 docs/rabbitmq-multi.1.xml delete mode 100644 docs/rabbitmq-server.1.xml delete mode 100644 docs/rabbitmq-service.xml delete mode 100644 docs/rabbitmq.conf.5.xml delete mode 100644 docs/rabbitmqctl.1.xml delete mode 100644 docs/remove-namespaces.xsl delete mode 100644 docs/usage.xsl delete mode 100644 generate_deps delete mode 100644 include/rabbit.hrl delete mode 100644 include/rabbit_backing_queue_spec.hrl delete mode 100644 include/rabbit_exchange_type_spec.hrl delete mode 100644 include/rabbit_msg_store_index.hrl delete mode 100644 packaging/RPMS/Fedora/rabbitmq-server.spec delete mode 100755 packaging/common/rabbitmq-server.ocf delete mode 100644 packaging/debs/Debian/debian/changelog delete mode 100644 packaging/macports/Makefile delete mode 100644 packaging/macports/Portfile.in delete mode 100644 packaging/macports/erlang-r14a-build-fix.diff delete mode 100755 packaging/macports/make-port-diff.sh delete mode 100644 packaging/macports/patch-org.macports.rabbitmq-server.plist.diff delete mode 100755 scripts/rabbitmq-multi delete mode 100644 scripts/rabbitmq-multi.bat delete mode 100755 scripts/rabbitmq-server delete mode 100644 scripts/rabbitmq-server.bat delete mode 100644 scripts/rabbitmq-service.bat delete mode 100755 scripts/rabbitmqctl delete mode 100644 scripts/rabbitmqctl.bat delete mode 100644 src/delegate.erl delete mode 100644 src/delegate_sup.erl delete mode 100644 src/file_handle_cache.erl delete mode 100644 src/gatherer.erl delete mode 100644 src/intervals.erl delete mode 100644 src/pg_local.erl delete mode 100644 src/rabbit.erl delete mode 100644 src/rabbit_access_control.erl delete mode 100644 src/rabbit_amqqueue.erl delete mode 100644 src/rabbit_amqqueue_process.erl delete mode 100644 src/rabbit_backing_queue.erl delete mode 100644 src/rabbit_binary_generator.erl delete mode 100644 src/rabbit_channel.erl delete mode 100644 src/rabbit_control.erl delete mode 100644 src/rabbit_disk_backed_queue.erl delete mode 100644 src/rabbit_disk_backed_queue_nogen.erl delete mode 100644 src/rabbit_error_logger.erl delete mode 100644 src/rabbit_exchange.erl delete mode 100644 src/rabbit_exchange_type.erl delete mode 100644 src/rabbit_exchange_type_direct.erl delete mode 100644 src/rabbit_exchange_type_fanout.erl delete mode 100644 src/rabbit_exchange_type_headers.erl delete mode 100644 src/rabbit_exchange_type_registry.erl delete mode 100644 src/rabbit_exchange_type_topic.erl delete mode 100644 src/rabbit_framing.erl delete mode 100644 src/rabbit_framing_channel.erl delete mode 100644 src/rabbit_invariable_queue.erl delete mode 100644 src/rabbit_limiter.erl delete mode 100644 src/rabbit_memory_monitor.erl delete mode 100644 src/rabbit_mnesia.erl delete mode 100644 src/rabbit_msg_store_index.erl delete mode 100644 src/rabbit_persister.erl delete mode 100644 src/rabbit_queue_backing_store.erl delete mode 100644 src/rabbit_ram_backed_queue.erl delete mode 100644 src/rabbit_ram_backed_queue_nogen.erl delete mode 100644 src/rabbit_reader.erl delete mode 100644 src/rabbit_reader_queue_collector.erl delete mode 100644 src/rabbit_restartable_sup.erl delete mode 100644 src/rabbit_router.erl delete mode 100644 src/rabbit_tests.erl delete mode 100644 src/rabbit_writer.erl delete mode 100644 src/speed_test_queue_backends.erl delete mode 100644 src/supervisor2.erl delete mode 100644 src/test_intervals.erl delete mode 100644 src/worker_pool.erl delete mode 100644 src/worker_pool_sup.erl delete mode 100644 src/worker_pool_worker.erl diff --git a/Makefile b/Makefile deleted file mode 100644 index 54edde23..00000000 --- a/Makefile +++ /dev/null @@ -1,294 +0,0 @@ - -TMPDIR ?= /tmp - -RABBITMQ_NODENAME ?= rabbit -RABBITMQ_SERVER_START_ARGS ?= -RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia -RABBITMQ_LOG_BASE ?= $(TMPDIR) - -DEPS_FILE=deps.mk -SOURCE_DIR=src -EBIN_DIR=ebin -INCLUDE_DIR=include -DOCS_DIR=docs -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl $(INCLUDE_DIR)/rabbit_framing_spec.hrl -SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing.erl $(USAGES_ERL) -BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) -TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(INCLUDE_DIR)/rabbit_framing_spec.hrl $(BEAM_TARGETS) -WEB_URL=http://stage.rabbitmq.com/ -MANPAGES=$(patsubst %.xml, %.gz, $(wildcard $(DOCS_DIR)/*.[0-9].xml)) -WEB_MANPAGES=$(patsubst %.xml, %.man.xml, $(wildcard $(DOCS_DIR)/*.[0-9].xml) $(DOCS_DIR)/rabbitmq-service.xml) -USAGES_XML=$(DOCS_DIR)/rabbitmqctl.1.xml $(DOCS_DIR)/rabbitmq-multi.1.xml -USAGES_ERL=$(foreach XML, $(USAGES_XML), $(call usage_xml_to_erl, $(XML))) - -ifeq ($(shell python -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python -else -ifeq ($(shell python2.6 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.6 -else -ifeq ($(shell python2.5 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.5 -else -# Hmm. Missing simplejson? -PYTHON=python -endif -endif -endif - -BASIC_PLT=basic.plt -RABBIT_PLT=rabbit.plt - -ifndef USE_SPECS -# our type specs rely on features and bug fixes in dialyzer that are -# only available in R13B01 upwards (R13B01 is eshell 5.7.2) -# -# NB: the test assumes that version number will only contain single digits -USE_SPECS=$(shell if [ $$(erl -noshell -eval 'io:format(erlang:system_info(version)), halt().') \> "5.7.1" ]; then echo "true"; else echo "false"; fi) -endif - -#other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(shell [ $(USE_SPECS) = "true" ] && echo "-Duse_specs") - -VERSION=0.0.0 -TARBALL_NAME=rabbitmq-server-$(VERSION) -TARGET_SRC_DIR=dist/$(TARBALL_NAME) - -SIBLING_CODEGEN_DIR=../rabbitmq-codegen/ -AMQP_CODEGEN_DIR=$(shell [ -d $(SIBLING_CODEGEN_DIR) ] && echo $(SIBLING_CODEGEN_DIR) || echo codegen) -AMQP_SPEC_JSON_FILES=$(AMQP_CODEGEN_DIR)/amqp-0.9.1.json - -ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e - -ERL_EBIN=erl -noinput -pa $(EBIN_DIR) - -define usage_xml_to_erl - $(subst __,_,$(patsubst $(DOCS_DIR)/rabbitmq%.1.xml, $(SOURCE_DIR)/rabbit_%_usage.erl, $(subst -,_,$(1)))) -endef - -define usage_dep - $(call usage_xml_to_erl, $(1)): $(1) $(DOCS_DIR)/usage.xsl -endef - -ifneq "$(SBIN_DIR)" "" -ifneq "$(TARGET_DIR)" "" -SCRIPTS_REL_PATH=$(shell ./calculate-relative $(TARGET_DIR)/sbin $(SBIN_DIR)) -endif -endif - -all: $(TARGETS) - -$(DEPS_FILE): $(SOURCES) $(INCLUDES) - escript generate_deps $(INCLUDE_DIR) $(SOURCE_DIR) \$$\(EBIN_DIR\) $@ - -$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app - escript generate_app $(EBIN_DIR) $@ < $< - -$(EBIN_DIR)/%.beam: - erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< - -$(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES) - $(PYTHON) codegen.py header $(AMQP_SPEC_JSON_FILES) $@ - -$(INCLUDE_DIR)/rabbit_framing_spec.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES) - $(PYTHON) codegen.py spec $(AMQP_SPEC_JSON_FILES) $@ - -$(SOURCE_DIR)/rabbit_framing.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES) $@ - -dialyze: $(BEAM_TARGETS) $(BASIC_PLT) - $(ERL_EBIN) -eval \ - "rabbit_dialyzer:halt_with_code(rabbit_dialyzer:dialyze_files(\"$(BASIC_PLT)\", \"$(BEAM_TARGETS)\"))." - -# rabbit.plt is used by rabbitmq-erlang-client's dialyze make target -create-plt: $(RABBIT_PLT) - -$(RABBIT_PLT): $(BEAM_TARGETS) $(BASIC_PLT) - cp $(BASIC_PLT) $@ - $(ERL_EBIN) -eval \ - "rabbit_dialyzer:halt_with_code(rabbit_dialyzer:add_to_plt(\"$@\", \"$(BEAM_TARGETS)\"))." - -$(BASIC_PLT): $(BEAM_TARGETS) - if [ -f $@ ]; then \ - touch $@; \ - else \ - $(ERL_EBIN) -eval \ - "rabbit_dialyzer:halt_with_code(rabbit_dialyzer:create_basic_plt(\"$@\"))."; \ - fi - -clean: - rm -f $(EBIN_DIR)/*.beam - rm -f $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script $(EBIN_DIR)/rabbit.rel - rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(INCLUDE_DIR)/rabbit_framing_spec.hrl $(SOURCE_DIR)/rabbit_framing.erl codegen.pyc - rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) - rm -f $(RABBIT_PLT) - rm -f $(DEPS_FILE) - -cleandb: - rm -rf $(RABBITMQ_MNESIA_DIR)/* - -############ various tasks to interact with RabbitMQ ################### - -BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\ - RABBITMQ_NODE_IP_ADDRESS="$(RABBITMQ_NODE_IP_ADDRESS)" \ - RABBITMQ_NODE_PORT="$(RABBITMQ_NODE_PORT)" \ - RABBITMQ_LOG_BASE="$(RABBITMQ_LOG_BASE)" \ - RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" - -run: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-node: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-tests: all - echo "rabbit_tests:all_tests()." | $(ERL_CALL) - -start-background-node: - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server ; sleep 1 - -start-rabbit-on-node: all - echo "rabbit:start()." | $(ERL_CALL) - -stop-rabbit-on-node: all - echo "rabbit:stop()." | $(ERL_CALL) - -force-snapshot: all - echo "rabbit_persister:force_snapshot()." | $(ERL_CALL) - -stop-node: - -$(ERL_CALL) -q - -# code coverage will be created for subdirectory "ebin" of COVER_DIR -COVER_DIR=. - -start-cover: all - echo "rabbit_misc:start_cover([\"rabbit\", \"hare\"])." | $(ERL_CALL) - echo "rabbit_misc:enable_cover([\"$(COVER_DIR)\"])." | $(ERL_CALL) - -start-secondary-cover: all - echo "rabbit_misc:start_cover([\"hare\"])." | $(ERL_CALL) - -stop-cover: all - echo "rabbit_misc:report_cover(), cover:stop()." | $(ERL_CALL) - cat cover/summary.txt - -######################################################################## - -srcdist: distclean - mkdir -p $(TARGET_SRC_DIR)/codegen - cp -r ebin src include LICENSE LICENSE-MPL-RabbitMQ $(TARGET_SRC_DIR) - cp INSTALL.in $(TARGET_SRC_DIR)/INSTALL - elinks -dump -no-references -no-numbering $(WEB_URL)install.html \ - >> $(TARGET_SRC_DIR)/INSTALL - cp README.in $(TARGET_SRC_DIR)/README - elinks -dump -no-references -no-numbering $(WEB_URL)build-server.html \ - >> $(TARGET_SRC_DIR)/BUILD - sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save - - cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ - cp codegen.py Makefile generate_app generate_deps calculate-relative $(TARGET_SRC_DIR) - - cp -r scripts $(TARGET_SRC_DIR) - cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) - chmod 0755 $(TARGET_SRC_DIR)/scripts/* - - (cd dist; tar -zcf $(TARBALL_NAME).tar.gz $(TARBALL_NAME)) - (cd dist; zip -r $(TARBALL_NAME).zip $(TARBALL_NAME)) - rm -rf $(TARGET_SRC_DIR) - -distclean: clean - $(MAKE) -C $(AMQP_CODEGEN_DIR) distclean - rm -rf dist - find . -regex '.*\(~\|#\|\.swp\|\.dump\)' -exec rm {} \; - -# xmlto can not read from standard input, so we mess with a tmp file. -%.gz: %.xml $(DOCS_DIR)/examples-to-end.xsl - xsltproc $(DOCS_DIR)/examples-to-end.xsl $< > $<.tmp && \ - xmlto man -o $(DOCS_DIR) --stringparam man.indent.verbatims=0 $<.tmp && \ - gzip -f $(DOCS_DIR)/`basename $< .xml` - rm -f $<.tmp - -# Use tmp files rather than a pipeline so that we get meaningful errors -# Do not fold the cp into previous line, it's there to stop the file being -# generated but empty if we fail -$(SOURCE_DIR)/%_usage.erl: - xsltproc --stringparam modulename "`basename $@ .erl`" \ - $(DOCS_DIR)/usage.xsl $< > $@.tmp - sed -e 's/"/\\"/g' -e 's/%QUOTE%/"/g' $@.tmp > $@.tmp2 - fold -s $@.tmp2 > $@.tmp3 - mv $@.tmp3 $@ - rm $@.tmp $@.tmp2 - -# We rename the file before xmlto sees it since xmlto will use the name of -# the file to make internal links. -%.man.xml: %.xml $(DOCS_DIR)/html-to-website-xml.xsl - cp $< `basename $< .xml`.xml && \ - xmlto xhtml-nochunks `basename $< .xml`.xml ; rm `basename $< .xml`.xml - cat `basename $< .xml`.html | \ - xsltproc --novalid $(DOCS_DIR)/remove-namespaces.xsl - | \ - xsltproc --stringparam original `basename $<` $(DOCS_DIR)/html-to-website-xml.xsl - | \ - xmllint --format - > $@ - rm `basename $< .xml`.html - -docs_all: $(MANPAGES) $(WEB_MANPAGES) - -install: all docs_all install_dirs - cp -r ebin include LICENSE LICENSE-MPL-RabbitMQ INSTALL $(TARGET_DIR) - - chmod 0755 scripts/* - for script in rabbitmq-env rabbitmq-server rabbitmqctl rabbitmq-multi rabbitmq-activate-plugins rabbitmq-deactivate-plugins; do \ - cp scripts/$$script $(TARGET_DIR)/sbin; \ - [ -e $(SBIN_DIR)/$$script ] || ln -s $(SCRIPTS_REL_PATH)/$$script $(SBIN_DIR)/$$script; \ - done - for section in 1 5; do \ - mkdir -p $(MAN_DIR)/man$$section; \ - for manpage in $(DOCS_DIR)/*.$$section.gz; do \ - cp $$manpage $(MAN_DIR)/man$$section; \ - done; \ - done - -install_dirs: - @ OK=true && \ - { [ -n "$(TARGET_DIR)" ] || { echo "Please set TARGET_DIR."; OK=false; }; } && \ - { [ -n "$(SBIN_DIR)" ] || { echo "Please set SBIN_DIR."; OK=false; }; } && \ - { [ -n "$(MAN_DIR)" ] || { echo "Please set MAN_DIR."; OK=false; }; } && $$OK - - mkdir -p $(TARGET_DIR)/sbin - mkdir -p $(SBIN_DIR) - mkdir -p $(MAN_DIR) - -$(foreach XML, $(USAGES_XML), $(eval $(call usage_dep, $(XML)))) - -# Note that all targets which depend on clean must have clean in their -# name. Also any target that doesn't depend on clean should not have -# clean in its name, unless you know that you don't need any of the -# automatic dependency generation for that target (eg cleandb). - -# We want to load the dep file if *any* target *doesn't* contain -# "clean" - i.e. if removing all clean-like targets leaves something - -ifeq "$(MAKECMDGOALS)" "" -TESTABLEGOALS:=$(.DEFAULT_GOAL) -else -TESTABLEGOALS:=$(MAKECMDGOALS) -endif - -ifneq "$(strip $(TESTABLEGOALS))" "$(DEPS_FILE)" -ifneq "$(strip $(patsubst clean%,,$(patsubst %clean,,$(TESTABLEGOALS))))" "" -ifeq "$(strip $(wildcard $(DEPS_FILE)))" "" -$(info $(shell $(MAKE) $(DEPS_FILE))) -endif -include $(DEPS_FILE) -endif -endif diff --git a/codegen.py b/codegen.py deleted file mode 100644 index 702eeafc..00000000 --- a/codegen.py +++ /dev/null @@ -1,503 +0,0 @@ -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2010 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2010 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -from __future__ import nested_scopes - -import sys -sys.path.append("../rabbitmq-codegen") # in case we're next to an experimental revision -sys.path.append("codegen") # in case we're building from a distribution package - -from amqp_codegen import * -import string -import re - -erlangTypeMap = { - 'octet': 'octet', - 'shortstr': 'shortstr', - 'longstr': 'longstr', - 'short': 'shortint', - 'long': 'longint', - 'longlong': 'longlongint', - 'bit': 'bit', - 'table': 'table', - 'timestamp': 'timestamp', -} - -# Coming up with a proper encoding of AMQP tables in JSON is too much -# hassle at this stage. Given that the only default value we are -# interested in is for the empty table, we only support that. -def convertTable(d): - if len(d) == 0: - return "[]" - else: raise 'Non-empty table defaults not supported', d - -erlangDefaultValueTypeConvMap = { - bool : lambda x: str(x).lower(), - str : lambda x: "<<\"" + x + "\">>", - int : lambda x: str(x), - float : lambda x: str(x), - dict: convertTable, - unicode: lambda x: "<<\"" + x.encode("utf-8") + "\">>" -} - -def erlangize(s): - s = s.replace('-', '_') - s = s.replace(' ', '_') - return s - -AmqpMethod.erlangName = lambda m: "'" + erlangize(m.klass.name) + '.' + erlangize(m.name) + "'" - -def erlangConstantName(s): - return '_'.join(re.split('[- ]', s.upper())) - -class PackedMethodBitField: - def __init__(self, index): - self.index = index - self.domain = 'bit' - self.contents = [] - - def extend(self, f): - self.contents.append(f) - - def count(self): - return len(self.contents) - - def full(self): - return self.count() == 8 - -def multiLineFormat(things, prologue, separator, lineSeparator, epilogue, thingsPerLine = 4): - r = [prologue] - i = 0 - for t in things: - if i != 0: - if i % thingsPerLine == 0: - r += [lineSeparator] - else: - r += [separator] - r += [t] - i += 1 - r += [epilogue] - return "".join(r) - -def prettyType(typeName, subTypes, typesPerLine = 4): - """Pretty print a type signature made up of many alternative subtypes""" - sTs = multiLineFormat(subTypes, - "( ", " | ", "\n | ", " )", - thingsPerLine = typesPerLine) - return "-type(%s ::\n %s)." % (typeName, sTs) - -def printFileHeader(): - print """%% Autogenerated code. Do not edit. -%% -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%%""" - -def genErl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldTypeList(fields): - return '[' + ', '.join([erlType(f.domain) for f in fields]) + ']' - - def fieldNameList(fields): - return '[' + ', '.join([erlangize(f.name) for f in fields]) + ']' - - def fieldTempList(fields): - return '[' + ', '.join(['F' + str(f.index) for f in fields]) + ']' - - def fieldMapList(fields): - return ', '.join([erlangize(f.name) + " = F" + str(f.index) for f in fields]) - - def genLookupMethodName(m): - print "lookup_method_name({%d, %d}) -> %s;" % (m.klass.index, m.index, m.erlangName()) - - def genMethodId(m): - print "method_id(%s) -> {%d, %d};" % (m.erlangName(), m.klass.index, m.index) - - def genMethodHasContent(m): - print "method_has_content(%s) -> %s;" % (m.erlangName(), str(m.hasContent).lower()) - - def genMethodIsSynchronous(m): - hasNoWait = "nowait" in fieldNameList(m.arguments) - if m.isSynchronous and hasNoWait: - print "is_method_synchronous(#%s{nowait = NoWait}) -> not(NoWait);" % (m.erlangName()) - else: - print "is_method_synchronous(#%s{}) -> %s;" % (m.erlangName(), str(m.isSynchronous).lower()) - - def genMethodFieldTypes(m): - """Not currently used - may be useful in future?""" - print "method_fieldtypes(%s) -> %s;" % (m.erlangName(), fieldTypeList(m.arguments)) - - def genMethodFieldNames(m): - print "method_fieldnames(%s) -> %s;" % (m.erlangName(), fieldNameList(m.arguments)) - - def packMethodFields(fields): - packed = [] - bitfield = None - for f in fields: - if erlType(f.domain) == 'bit': - if not(bitfield) or bitfield.full(): - bitfield = PackedMethodBitField(f.index) - packed.append(bitfield) - bitfield.extend(f) - else: - bitfield = None - packed.append(f) - return packed - - def methodFieldFragment(f): - type = erlType(f.domain) - p = 'F' + str(f.index) - if type == 'shortstr': - return p+'Len:8/unsigned, '+p+':'+p+'Len/binary' - elif type == 'longstr': - return p+'Len:32/unsigned, '+p+':'+p+'Len/binary' - elif type == 'octet': - return p+':8/unsigned' - elif type == 'shortint': - return p+':16/unsigned' - elif type == 'longint': - return p+':32/unsigned' - elif type == 'longlongint': - return p+':64/unsigned' - elif type == 'timestamp': - return p+':64/unsigned' - elif type == 'bit': - return p+'Bits:8' - elif type == 'table': - return p+'Len:32/unsigned, '+p+'Tab:'+p+'Len/binary' - - def genFieldPostprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - for index in range(f.count()): - print " F%d = ((F%dBits band %d) /= 0)," % \ - (f.index + index, - f.index, - 1 << index) - elif type == 'table': - print " F%d = rabbit_binary_parser:parse_table(F%dTab)," % \ - (f.index, f.index) - elif type == 'shortstr': - print " if F%dLen > 255 -> exit(method_field_shortstr_overflow); true -> ok end," % (f.index) - else: - pass - - def genMethodRecord(m): - print "method_record(%s) -> #%s{};" % (m.erlangName(), m.erlangName()) - - def genDecodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - binaryPattern = ', '.join([methodFieldFragment(f) for f in packedFields]) - if binaryPattern: - restSeparator = ', ' - else: - restSeparator = '' - recordConstructorExpr = '#%s{%s}' % (m.erlangName(), fieldMapList(m.arguments)) - print "decode_method_fields(%s, <<%s>>) ->" % (m.erlangName(), binaryPattern) - genFieldPostprocessing(packedFields) - print " %s;" % (recordConstructorExpr,) - - def genDecodeProperties(c): - print "decode_properties(%d, PropBin) ->" % (c.index) - print " %s = rabbit_binary_parser:parse_properties(%s, PropBin)," % \ - (fieldTempList(c.fields), fieldTypeList(c.fields)) - print " #'P_%s'{%s};" % (erlangize(c.name), fieldMapList(c.fields)) - - def genFieldPreprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - print " F%dBits = (%s)," % \ - (f.index, - ' bor '.join(['(bitvalue(F%d) bsl %d)' % (x.index, x.index - f.index) - for x in f.contents])) - elif type == 'table': - print " F%dTab = rabbit_binary_generator:generate_table(F%d)," % (f.index, f.index) - print " F%dLen = size(F%dTab)," % (f.index, f.index) - elif type == 'shortstr': - print " F%dLen = size(F%d)," % (f.index, f.index) - print " if F%dLen > 255 -> exit(method_field_shortstr_overflow); true -> ok end," % (f.index) - elif type == 'longstr': - print " F%dLen = size(F%d)," % (f.index, f.index) - else: - pass - - def genEncodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - print "encode_method_fields(#%s{%s}) ->" % (m.erlangName(), fieldMapList(m.arguments)) - genFieldPreprocessing(packedFields) - print " <<%s>>;" % (', '.join([methodFieldFragment(f) for f in packedFields])) - - def genEncodeProperties(c): - print "encode_properties(#'P_%s'{%s}) ->" % (erlangize(c.name), fieldMapList(c.fields)) - print " rabbit_binary_generator:encode_properties(%s, %s);" % \ - (fieldTypeList(c.fields), fieldTempList(c.fields)) - - def messageConstantClass(cls): - # We do this because 0.8 uses "soft error" and 8.1 uses "soft-error". - return erlangConstantName(cls) - - def genLookupException(c,v,cls): - mCls = messageConstantClass(cls) - if mCls == 'SOFT_ERROR': genLookupException1(c,'false') - elif mCls == 'HARD_ERROR': genLookupException1(c, 'true') - elif mCls == '': pass - else: raise 'Unknown constant class', cls - - def genLookupException1(c,hardErrorBoolStr): - n = erlangConstantName(c) - print 'lookup_amqp_exception(%s) -> {%s, ?%s, <<"%s">>};' % \ - (n.lower(), hardErrorBoolStr, n, n) - - def genAmqpException(c,v,cls): - n = erlangConstantName(c) - print 'amqp_exception(?%s) -> %s;' % \ - (n, n.lower()) - - methods = spec.allMethods() - - printFileHeader() - module = "rabbit_framing_amqp_%d_%d" % (spec.major, spec.minor) - if spec.revision != '0': - module = "%s_%d" % (module, spec.revision) - if module == "rabbit_framing_amqp_8_0": - module = "rabbit_framing_amqp_0_8" - print "-module(%s)." % module - print """-include("rabbit_framing.hrl"). - --export([lookup_method_name/1]). - --export([method_id/1]). --export([method_has_content/1]). --export([is_method_synchronous/1]). --export([method_record/1]). --export([method_fieldnames/1]). --export([decode_method_fields/2]). --export([decode_properties/2]). --export([encode_method_fields/1]). --export([encode_properties/1]). --export([lookup_amqp_exception/1]). --export([amqp_exception/1]). - -bitvalue(true) -> 1; -bitvalue(false) -> 0; -bitvalue(undefined) -> 0. - -%% Method signatures --ifdef(use_specs). --spec(lookup_method_name/1 :: (amqp_method()) -> amqp_method_name()). --spec(method_id/1 :: (amqp_method_name()) -> amqp_method()). --spec(method_has_content/1 :: (amqp_method_name()) -> boolean()). --spec(is_method_synchronous/1 :: (amqp_method_record()) -> boolean()). --spec(method_record/1 :: (amqp_method_name()) -> amqp_method_record()). --spec(method_fieldnames/1 :: (amqp_method_name()) -> [amqp_method_field_name()]). --spec(decode_method_fields/2 :: (amqp_method_name(), binary()) -> amqp_method_record()). --spec(decode_properties/2 :: (non_neg_integer(), binary()) -> amqp_property_record()). --spec(encode_method_fields/1 :: (amqp_method_record()) -> binary()). --spec(encode_properties/1 :: (amqp_method_record()) -> binary()). --spec(lookup_amqp_exception/1 :: (amqp_exception()) -> {boolean(), amqp_exception_code(), binary()}). --spec(amqp_exception/1 :: (amqp_exception_code()) -> amqp_exception()). --endif. % use_specs -""" - for m in methods: genLookupMethodName(m) - print "lookup_method_name({_ClassId, _MethodId} = Id) -> exit({unknown_method_id, Id})." - - for m in methods: genMethodId(m) - print "method_id(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodHasContent(m) - print "method_has_content(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodIsSynchronous(m) - print "is_method_synchronous(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodRecord(m) - print "method_record(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodFieldNames(m) - print "method_fieldnames(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genDecodeMethodFields(m) - print "decode_method_fields(Name, BinaryFields) ->" - print " rabbit_misc:frame_error(Name, BinaryFields)." - - for c in spec.allClasses(): genDecodeProperties(c) - print "decode_properties(ClassId, _BinaryFields) -> exit({unknown_class_id, ClassId})." - - for m in methods: genEncodeMethodFields(m) - print "encode_method_fields(Record) -> exit({unknown_method_name, element(1, Record)})." - - for c in spec.allClasses(): genEncodeProperties(c) - print "encode_properties(Record) -> exit({unknown_properties_record, Record})." - - for (c,v,cls) in spec.constants: genLookupException(c,v,cls) - print "lookup_amqp_exception(Code) ->" - print " rabbit_log:warning(\"Unknown AMQP error code '~p'~n\", [Code])," - print " {true, ?INTERNAL_ERROR, <<\"INTERNAL_ERROR\">>}." - - for(c,v,cls) in spec.constants: genAmqpException(c,v,cls) - print "amqp_exception(_Code) -> undefined." - -def genHrl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldNameList(fields): - return ', '.join([erlangize(f.name) for f in fields]) - - def fieldNameListDefaults(fields): - def fillField(field): - result = erlangize(f.name) - if field.defaultvalue != None: - conv_fn = erlangDefaultValueTypeConvMap[type(field.defaultvalue)] - result += ' = ' + conv_fn(field.defaultvalue) - return result - return ', '.join([fillField(f) for f in fields]) - - methods = spec.allMethods() - - printFileHeader() - print "-define(PROTOCOL_VERSION_REVISION, %d)." % (spec.revision) - print "-define(PROTOCOL_PORT, %d)." % (spec.port) - - for (c,v,cls) in spec.constants: - print "-define(%s, %s)." % (erlangConstantName(c), v) - - print "%% Method field records." - for m in methods: - print "-record(%s, {%s})." % (m.erlangName(), fieldNameListDefaults(m.arguments)) - - print "%% Class property records." - for c in spec.allClasses(): - print "-record('P_%s', {%s})." % (erlangize(c.name), fieldNameList(c.fields)) - - print "-ifdef(use_specs)." - print "%% Various types" - print prettyType("amqp_method_name()", - [m.erlangName() for m in methods]) - print prettyType("amqp_method()", - ["{%s, %s}" % (m.klass.index, m.index) for m in methods], - 6) - print prettyType("amqp_method_record()", - ["#%s{}" % (m.erlangName()) for m in methods]) - fieldNames = set() - for m in methods: - fieldNames.update(m.arguments) - fieldNames = [erlangize(f.name) for f in fieldNames] - print prettyType("amqp_method_field_name()", - fieldNames) - print prettyType("amqp_property_record()", - ["#'P_%s'{}" % erlangize(c.name) for c in spec.allClasses()]) - print prettyType("amqp_exception()", - ["'%s'" % erlangConstantName(c).lower() for (c, v, cls) in spec.constants]) - print prettyType("amqp_exception_code()", - ["%i" % v for (c, v, cls) in spec.constants]) - print "-endif. % use_specs" - -def genSpec(spec): - methods = spec.allMethods() - - printFileHeader() - print """% Hard-coded types --type(amqp_field_type() :: - 'longstr' | 'signedint' | 'decimal' | 'timestamp' | - 'table' | 'byte' | 'double' | 'float' | 'long' | - 'short' | 'bool' | 'binary' | 'void'). --type(amqp_property_type() :: - 'shortstr' | 'longstr' | 'octet' | 'shortint' | 'longint' | - 'longlongint' | 'timestamp' | 'bit' | 'table'). -%% we could make this more precise but ultimately are limited by -%% dialyzer's lack of support for recursive types --type(amqp_table() :: [{binary(), amqp_field_type(), any()}]). -%% TODO: make this more precise --type(amqp_properties() :: tuple()). - --type(channel_number() :: non_neg_integer()). --type(resource_name() :: binary()). --type(routing_key() :: binary()). --type(username() :: binary()). --type(password() :: binary()). --type(vhost() :: binary()). --type(ctag() :: binary()). --type(exchange_type() :: atom()). --type(binding_key() :: binary()). -""" - print "% Auto-generated types" - classIds = set() - for m in spec.allMethods(): - classIds.add(m.klass.index) - print prettyType("amqp_class_id()", - ["%i" % ci for ci in classIds]) - -def generateErl(specPath): - genErl(AmqpSpec(specPath)) - -def generateHrl(specPath): - genHrl(AmqpSpec(specPath)) - -def generateSpec(specPath): - genSpec(AmqpSpec(specPath)) - -if __name__ == "__main__": - do_main_dict({"header": generateHrl, - "spec": generateSpec, - "body": generateErl}) - diff --git a/docs/examples-to-end.xsl b/docs/examples-to-end.xsl deleted file mode 100644 index d9686ada..00000000 --- a/docs/examples-to-end.xsl +++ /dev/null @@ -1,94 +0,0 @@ - - - - - - - - - - - - - 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- For more general documentation, please see the - administrator's guide. -

- - - Table of Contents - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
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- - - - diff --git a/docs/rabbitmq-activate-plugins.1.xml b/docs/rabbitmq-activate-plugins.1.xml deleted file mode 100644 index 5f831634..00000000 --- a/docs/rabbitmq-activate-plugins.1.xml +++ /dev/null @@ -1,60 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-activate-plugins - 1 - RabbitMQ Server - - - - rabbitmq-activate-plugins - command line tool for activating plugins in a RabbitMQ broker - - - - - rabbitmq-activate-plugins - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - - rabbitmq-activate-plugins is a command line tool for activating -plugins installed into the broker's plugins directory. - - - For example: - - - rabbitmq-activate-plugins - - - This command activates all of the installed plugins in the current RabbitMQ install. - - - - - See also - - rabbitmq.conf5 - rabbitmq-multi1 - rabbitmq-server1 - rabbitmqctl1 - rabbitmq-deactivate-plugins1 - - - diff --git a/docs/rabbitmq-deactivate-plugins.1.xml b/docs/rabbitmq-deactivate-plugins.1.xml deleted file mode 100644 index bbf1207e..00000000 --- a/docs/rabbitmq-deactivate-plugins.1.xml +++ /dev/null @@ -1,60 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-deactivate-plugins - 1 - RabbitMQ Server - - - - rabbitmq-deactivate-plugins - command line tool for deactivating plugins in a RabbitMQ broker - - - - - rabbitmq-deactivate-plugins - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -rabbitmq-deactivate-plugins is a command line tool for deactivating -plugins installed into the broker. - - - For example: - - - rabbitmq-deactivate-plugins - - - This command deactivates all of the installed plugins in the current RabbitMQ install. - - - - - See also - - rabbitmq.conf5 - rabbitmq-multi1 - rabbitmq-server1 - rabbitmqctl1 - rabbitmq-activate-plugins1 - - - diff --git a/docs/rabbitmq-multi.1.xml b/docs/rabbitmq-multi.1.xml deleted file mode 100644 index 6586890a..00000000 --- a/docs/rabbitmq-multi.1.xml +++ /dev/null @@ -1,100 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-multi - 1 - RabbitMQ Server - - - - rabbitmq-multi - start/stop local cluster RabbitMQ nodes - - - - - rabbitmq-multi - command - command options - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -rabbitmq-multi scripts allows for easy set-up of a cluster on a single -machine. - - - - - Commands - - - start_all count - - -Start count nodes with unique names, listening on all IP addresses and -on sequential ports starting from 5672. - - For example: - rabbitmq-multi start_all 3 - - Starts 3 local RabbitMQ nodes with unique, sequential port numbers. - - - - - - status - - -Print the status of all running RabbitMQ nodes. - - - - - - stop_all - - -Stop all local RabbitMQ nodes, - - - - - - rotate_logs - - -Rotate log files for all local and running RabbitMQ nodes. - - - - - - - - - - See also - - rabbitmq.conf5 - rabbitmq-server1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-server.1.xml b/docs/rabbitmq-server.1.xml deleted file mode 100644 index 921da4f1..00000000 --- a/docs/rabbitmq-server.1.xml +++ /dev/null @@ -1,143 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-server - 1 - RabbitMQ Server - - - - rabbitmq-server - start RabbitMQ AMQP server - - - - - rabbitmq-multi - -detached - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-server in the foreground displays a banner message, -and reports on progress in the startup sequence, concluding with the -message "broker running", indicating that the RabbitMQ broker has been -started successfully. To shut down the server, just terminate the -process or use rabbitmqctl(1). - - - - - Environment - - - - RABBITMQ_MNESIA_BASE - - -Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory where -Mnesia database files should be placed. - - - - - - RABBITMQ_LOG_BASE - - -Defaults to /var/log/rabbitmq. Log files generated by the server will -be placed in this directory. - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -Defaults to 0.0.0.0. This can be changed if you only want to bind to -one network interface. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - RABBITMQ_CLUSTER_CONFIG_FILE - - -Defaults to /etc/rabbitmq/rabbitmq_cluster.config. If this file is -present it is used by the server to auto-configure a RabbitMQ cluster. -See the clustering guide -for details. - - - - - - - - - Options - - - -detached - - - start the server process in the background - - For example: - rabbitmq-server -detached - - Runs RabbitMQ AMQP server in the background. - - - - - - - - See also - - rabbitmq.conf5 - rabbitmq-multi1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-service.xml b/docs/rabbitmq-service.xml deleted file mode 100644 index 2b416e3e..00000000 --- a/docs/rabbitmq-service.xml +++ /dev/null @@ -1,228 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-service.bat - RabbitMQ Server - - - - rabbitmq-service.bat - manage RabbitMQ AMQP service - - - - - rabbitmq-service.bat - command - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-service allows the RabbitMQ broker to be run as a -service on NT/2000/2003/XP/Vista® environments. The RabbitMQ broker -service can be started and stopped using the Windows® services -applet. - - -By default the service will run in the authentication context of the -local system account. It is therefore necessary to synchronise Erlang -cookies between the local system account (typically -C:\WINDOWS\.erlang.cookie and the account that will be used to -run rabbitmqctl. - - - - - Commands - - - - help - - -Display usage information. - - - - - - install - - -Install the service. The service will not be started. -Subsequent invocations will update the service parameters if -relevant environment variables were modified. - - - - - - remove - - -Remove the service. If the service is running then it will -automatically be stopped before being removed. No files will be -deleted as a consequence and rabbitmq-server will remain operable. - - - - - - start - - -Start the service. The service must have been correctly installed -beforehand. - - - - - - stop - - -Stop the service. The service must be running for this command to -have any effect. - - - - - - disable - - -Disable the service. This is the equivalent of setting the startup -type to Disabled using the service control panel. - - - - - - enable - - -Enable the service. This is the equivalent of setting the startup -type to Automatic using the service control panel. - - - - - - - - Environment - - - - RABBITMQ_SERVICENAME - - -Defaults to RabbitMQ. - - - - - - RABBITMQ_BASE - - -Defaults to the application data directory of the current user. -This is the location of log and database directories. - - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -Defaults to 0.0.0.0. This can be changed if you only want to bind to -one network interface. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - ERLANG_SERVICE_MANAGER_PATH - - -Defaults to C:\Program Files\erl5.5.5\erts-5.5.5\bin -(or C:\Program Files (x86)\erl5.5.5\erts-5.5.5\bin for 64-bit -environments). This is the installation location of the Erlang service -manager. - - - - - - RABBITMQ_CLUSTER_CONFIG_FILE - - -If this file is -present it is used by the server to auto-configure a RabbitMQ cluster. -See the clustering guide -for details. - - - - - - RABBITMQ_CONSOLE_LOG - - -Set this varable to new or reuse to have the console -output from the server redirected to a file named SERVICENAME.debug -in the application data directory of the user that installed the service. -Under Vista this will be C:\Users\AppData\username\SERVICENAME. -Under previous versions of Windows this will be -C:\Documents and Settings\username\Application Data\SERVICENAME. -If RABBITMQ_CONSOLE_LOG is set to new then a new file will be -created each time the service starts. If RABBITMQ_CONSOLE_LOG is -set to reuse then the file will be overwritten each time the -service starts. The default behaviour when RABBITMQ_CONSOLE_LOG is -not set or set to a value other than new or reuse is to discard -the server output. - - - - - - diff --git a/docs/rabbitmq.conf.5.xml b/docs/rabbitmq.conf.5.xml deleted file mode 100644 index 31de7164..00000000 --- a/docs/rabbitmq.conf.5.xml +++ /dev/null @@ -1,84 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq.conf - 5 - RabbitMQ Server - - - - rabbitmq.conf - default settings for RabbitMQ AMQP server - - - - Description - -/etc/rabbitmq/rabbitmq.conf contains variable settings that override the -defaults built in to the RabbitMQ startup scripts. - - -The file is interpreted by the system shell, and so should consist of -a sequence of shell environment variable definitions. Normal shell -syntax is permitted (since the file is sourced using the shell "." -operator), including line comments starting with "#". - - -In order of preference, the startup scripts get their values from the -environment, from /etc/rabbitmq/rabbitmq.conf and finally from the -built-in default values. For example, for the RABBITMQ_NODENAME -setting, - - - RABBITMQ_NODENAME - - -from the environment is checked first. If it is absent or equal to the -empty string, then - - - NODENAME - - -from /etc/rabbitmq/rabbitmq.conf is checked. If it is also absent -or set equal to the empty string then the default value from the -startup script is used. - - -The variable names in /etc/rabbitmq/rabbitmq.conf are always equal to the -environment variable names, with the RABBITMQ_ prefix removed: -RABBITMQ_NODE_PORT from the environment becomes NODE_PORT in the -/etc/rabbitmq/rabbitmq.conf file, etc. - - For example: - -# I am a complete /etc/rabbitmq/rabbitmq.conf file. -# Comment lines start with a hash character. -# This is a /bin/sh script file - use ordinary envt var syntax -NODENAME=hare - - - This is an example of a complete - /etc/rabbitmq/rabbitmq.conf file that overrides the default Erlang - node name from "rabbit" to "hare". - - - - - - See also - - rabbitmq-multi1 - rabbitmq-server1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmqctl.1.xml b/docs/rabbitmqctl.1.xml deleted file mode 100644 index 8223a690..00000000 --- a/docs/rabbitmqctl.1.xml +++ /dev/null @@ -1,1033 +0,0 @@ - - - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmqctl - 1 - RabbitMQ Service - - - - rabbitmqctl - command line tool for managing a RabbitMQ broker - - - - - rabbitmqctl - -n node - -q - command - command options - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. - - - rabbitmqctl is a command line tool for managing a - RabbitMQ broker. It performs all actions by connecting to one of the - broker's nodes. - - - - - Options - - - -n node - - - Default node is "rabbit@server", where server is the local host. On - a host named "server.example.com", the node name of the RabbitMQ - Erlang node will usually be rabbit@server (unless RABBITMQ_NODENAME - has been set to some non-default value at broker startup time). The - output of hostname -s is usually the correct suffix to use after the - "@" sign. See rabbitmq-server(1) for details of configuring the - RabbitMQ broker. - - - - - -q - - - Quiet output mode is selected with the "-q" flag. Informational - messages are suppressed when quiet mode is in effect. - - - - - - Flags must precede all other parameters to rabbitmqctl. - - - - - Commands - - - Application and Cluster Management - - - - stop - - - Stops the Erlang node on which RabbitMQ is running. To - restart the node follow the instructions for Running - the Server in the installation - guide. - - For example: - rabbitmqctl stop - - This command instructs the RabbitMQ node to terminate. - - - - - - stop_app - - - Stops the RabbitMQ application, leaving the Erlang node - running. - - - This command is typically run prior to performing other - management actions that require the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl stop_app - - This command instructs the RabbitMQ node to stop the - RabbitMQ application. - - - - - - start_app - - - Starts the RabbitMQ application. - - - This command is typically run after performing other - management actions that required the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl start_app - - This command instructs the RabbitMQ node to start the - RabbitMQ application. - - - - - - status - - - Displays various information about the RabbitMQ broker, - such as whether the RabbitMQ application on the current - node, its version number, what nodes are part of the - broker, which of these are running. - - For example: - rabbitmqctl status - - This command displays information about the RabbitMQ - broker. - - - - - - reset - - - Return a RabbitMQ node to its virgin state. - - - Removes the node from any cluster it belongs to, removes - all data from the management database, such as configured - users and vhosts, and deletes all persistent - messages. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl reset - - This command resets the RabbitMQ node. - - - - - - force_reset - - - Forcefully return a RabbitMQ node to its virgin state. - - - The force_reset command differs from - reset in that it resets the node - unconditionally, regardless of the current management - database state and cluster configuration. It should only - be used as a last resort if the database or cluster - configuration has been corrupted. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl force_reset - - This command resets the RabbitMQ node. - - - - - - rotate_logs suffix - - - Instruct the RabbitMQ node to rotate the log files. - - - The RabbitMQ broker will attempt to append the current contents - of the log file to the file with name composed of the original - name and the suffix. - It will create a new file if such a file does not already exist. - When no is specified, the empty log file is - simply created at the original location; no rotation takes place. - - - When an error occurs while appending the contents of the old log - file, the operation behaves in the same way as if no was - specified. - - - This command might be helpful when you are e.g. writing your - own logrotate script and you do not want to restart the RabbitMQ - node. - - For example: - rabbitmqctl rotate_logs .1 - - This command instructs the RabbitMQ node to append the current content - of the log files to the files with names consisting of the original logs' - names and ".1" suffix, e.g. rabbit.log.1. Finally, the old log files are reopened. - - - - - - - - Cluster management - - - - cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. - - - Cluster nodes can be of two types: disk or ram. Disk nodes - replicate data in ram and on disk, thus providing - redundancy in the event of node failure and recovery from - global events such as power failure across all nodes. Ram - nodes replicate data in ram only and are mainly used for - scalability. A cluster must always have at least one disk node. - - - If the current node is to become a disk node it needs to - appear in the cluster node list. Otherwise it becomes a - ram node. If the node list is empty or only contains the - current node then the node becomes a standalone, - i.e. non-clustered, (disk) node. - - - After executing the cluster command, whenever - the RabbitMQ application is started on the current node it - will attempt to connect to the specified nodes, thus - becoming an active node in the cluster comprising those - nodes (and possibly others). - - - The list of nodes does not have to contain all the - cluster's nodes; a subset is sufficient. Also, clustering - generally succeeds as long as at least one of the - specified nodes is active. Hence adjustments to the list - are only necessary if the cluster configuration is to be - altered radically. - - - For this command to succeed the RabbitMQ application must - have been stopped, e.g. with stop_app. Furthermore, - turning a standalone node into a clustered node requires - the node be reset first, - in order to avoid accidental destruction of data with the - cluster command. - - - For more details see the clustering guide. - - For example: - rabbitmqctl cluster rabbit@tanto hare@elena - - This command instructs the RabbitMQ node to join the - cluster with nodes rabbit@tanto and - hare@elena. If the node is one of these then - it becomes a disk node, otherwise a ram node. - - - - - - - - Closing individual connections - - - - close_connection connectionpid explanation - - - - connectionpid - Id of the Erlang process associated with the connection to close. - - - explanation - Explanation string. - - - - Instruct the broker to close the connection associated - with the Erlang process id (see also the - list_connections - command), passing the string to the - connected client as part of the AMQP connection shutdown - protocol. - - For example: - rabbitmqctl close_connection "<rabbit@tanto.4262.0>" "go away" - - This command instructs the RabbitMQ broker to close the - connection associated with the Erlang process - id <rabbit@tanto.4262.0>, passing the - explanation go away to the connected client. - - - - - - - - User management - - - - add_user username password - - - - username - The name of the user to create. - - - password - The password the created user will use to log in to the broker. - - - For example: - rabbitmqctl add_user tonyg changeit - - This command instructs the RabbitMQ broker to create a - user named tonyg with (initial) password - changeit. - - - - - - delete_user username - - - - username - The name of the user to delete. - - - For example: - rabbitmqctl delete_user tonyg - - This command instructs the RabbitMQ broker to delete the - user named tonyg. - - - - - - change_password username newpassword - - - - username - The name of the user whose password is to be changed. - - - newpassword - The new password for the user. - - - For example: - rabbitmqctl change_password tonyg newpass - - This command instructs the RabbitMQ broker to change the - password for the user named tonyg to - newpass. - - - - - - list_users - - Lists users - For example: - rabbitmqctl list_users - - This command instructs the RabbitMQ broker to list all users. - - - - - - - - Access control - - - - add_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to create. - - - - Creates a virtual host. - - For example: - rabbitmqctl add_vhost test - - This command instructs the RabbitMQ broker to create a new - virtual host called test. - - - - - - delete_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to delete. - - - - Deletes a virtual host. - - - Deleting a virtual host deletes all its exchanges, - queues, user mappings and associated permissions. - - For example: - rabbitmqctl delete_vhost test - - This command instructs the RabbitMQ broker to delete the - virtual host called test. - - - - - - list_vhosts - - - Lists virtual hosts. - - For example: - rabbitmqctl list_vhosts - - This command instructs the RabbitMQ broker to list all - virtual hosts. - - - - - - set_permissions -p vhostpath username configure write read - - - - vhostpath - The name of the virtual host to which to grant the user access, defaulting to /. - - - username - The name of the user to grant access to the specified virtual host. - - - configure - A regular expression matching resource names for which the user is granted configure permissions. - - - write - A regular expression matching resource names for which the user is granted write permissions. - - - read - A regular expression matching resource names for which the user is granted read permissions. - - - - Sets user permissions. - - For example: - rabbitmqctl set_permissions -p /myvhost tonyg "^tonyg-.*" ".*" ".*" - - This command instructs the RabbitMQ broker to grant the - user named tonyg access to the virtual host - called /myvhost, with configure permissions - on all resources whose names starts with "tonyg-", and - write and read permissions on all resources. - - - - - - clear_permissions -p vhostpath username - - - - vhostpath - The name of the virtual host to which to deny the user access, defaulting to /. - - - username - The name of the user to deny access to the specified virtual host. - - - - Sets user permissions. - - For example: - rabbitmqctl clear_permissions -p /myvhost tonyg - - This command instructs the RabbitMQ broker to deny the - user named tonyg access to the virtual host - called /myvhost. - - - - - - list_permissions -p vhostpath - - - - vhostpath - The name of the virtual host for which to list the users that have been granted access to it, and their permissions. Defaults to /. - - - - Lists permissions in a virtual host. - - For example: - rabbitmqctl list_permissions -p /myvhost - - This command instructs the RabbitMQ broker to list all the - users which have been granted access to the virtual host - called /myvhost, and the permissions they - have for operations on resources in that virtual host. - - - - - - list_user_permissions -p vhostpath username - - - - username - The name of the user for which to list the permissions. - - - - Lists user permissions. - - For example: - rabbitmqctl list_user_permissions tonyg - - This command instructs the RabbitMQ broker to list all the - virtual hosts to which the user named tonyg - has been granted access, and the permissions the user has - for operations on resources in these virtual hosts. - - - - - - - - Server Status - - The server status queries interrogate the server and return a list of - results with tab-delimited columns. Some queries (list_queues, - list_exchanges, list_bindings, and - list_consumers) accept an - optional vhost parameter. This parameter, if present, must be - specified immediately after the query. - - - The list_queues, list_exchanges and list_bindings commands accept an - optional virtual host parameter for which to display results. The - default value is "/". - - - - - list_queues -p vhostpath queueinfoitem ... - - - Returns queue details. Queue details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The queueinfoitem parameter is used to indicate which queue - information items to include in the results. The column order in the - results will match the order of the parameters. - queueinfoitem can take any value from the list - that follows: - - - - name - The name of the queue with non-ASCII characters URL-escaped. - - - durable - Whether or not the queue survives server restarts. - - - auto_delete - Whether the queue will be deleted automatically when no longer used. - - - arguments - Queue arguments. - - - pid - Id of the Erlang process associated with the queue. - - - owner_pid - Id of the Erlang process representing the connection - which is the exclusive owner of the queue. Empty if the - queue is non-exclusive. - - - exclusive_consumer_pid - Id of the Erlang process representing the channel of the - exclusive consumer subscribed to this queue. Empty if - there is no exclusive consumer. - - - exclusive_consumer_tag - Consumer tag of the exclusive consumer subscribed to - this queue. Empty if there is no exclusive consumer. - - - messages_ready - Number of messages ready to be delivered to clients. - - - messages_unacknowledged - Number of messages delivered to clients but not yet acknowledged. - - - messages - Sum of ready and unacknowledged messages - (queue depth). - - - consumers - Number of consumers. - - - memory - Bytes of memory consumed by the Erlang process associated with the - queue, including stack, heap and internal structures. - - - - If no queueinfoitems are specified then queue name and depth are - displayed. - - - For example: - - rabbitmqctl list_queues -p /myvhost messages consumers - - This command displays the depth and number of consumers for each - queue of the virtual host named /myvhost. - - - - - - list_exchanges -p vhostpath exchangeinfoitem ... - - - Returns exchange details. Exchange details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The exchangeinfoitem parameter is used to indicate which - exchange information items to include in the results. The column order in the - results will match the order of the parameters. - exchangeinfoitem can take any value from the list - that follows: - - - - name - The name of the exchange with non-ASCII characters URL-escaped. - - - type - The exchange type (one of [direct, - topic, headers, - fanout]). - - - durable - Whether or not the exchange survives server restarts. - - - auto_delete - Whether the exchange will be deleted automatically when no longer used. - - - arguments - Exchange arguments. - - - - If no exchangeinfoitems are specified then - exchange name and type are displayed. - - - For example: - - rabbitmqctl list_exchanges -p /myvhost name type - - This command displays the name and type for each - exchange of the virtual host named /myvhost. - - - - - - - - list_bindings -p vhostpath - - - By default the bindings for the / virtual - host are returned. The "-p" flag can be used to override - this default. Each result row will contain an exchange - name, queue name, routing key and binding arguments, in - that order. Non-ASCII characters will be URL-encoded. - - - The output format for "list_bindings" is a list of rows containing - exchange name, queue name, routing key and arguments, in that order. - - - - - - list_connections connectioninfoitem ... - - - Returns TCP/IP connection statistics. - - - The connectioninfoitem parameter is used to indicate - which connection information items to include in the results. The - column order in the results will match the order of the parameters. - connectioninfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - address - Server IP address. - - - port - Server port. - - - peer_address - Peer address. - - - peer_port - Peer port. - - - state - Connection state (one of [starting, tuning, - opening, running, closing, closed]). - - - protocol - Version of the AMQP protocol in use (currently one of amqp_0_9_1 or amqp_0_8). Note that if a client requests an AMQP 0-9 connection, we treat it as AMQP 0-9-1. - - - channels - Number of channels using the connection. - - - user - Username associated with the connection. - - - vhost - Virtual host name with non-ASCII characters URL-escaped. - - - timeout - Connection timeout. - - - frame_max - Maximum frame size (bytes). - - - client_properties - Informational properties transmitted by the client - during connection establishment. - - - recv_oct - Octets received. - - - recv_cnt - Packets received. - - - send_oct - Octets send. - - - send_cnt - Packets sent. - - - send_pend - Send queue size. - - - - If no connectioninfoitems are specified then user, peer - address, peer port, connection state and protocol are displayed. - - - - For example: - - rabbitmqctl list_connections send_pend server_port - - This command displays the send queue size and server port for each - connection. - - - - - - list_channels channelinfoitem ... - - - Returns information on all current channels, the logical - containers executing most AMQP commands. This includes - channels that are part of ordinary AMQP connections, and - channels created by various plug-ins and other extensions. - - - The channelinfoitem parameter is used to - indicate which channel information items to include in the - results. The column order in the results will match the - order of the parameters. - channelinfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - connection - Id of the Erlang process associated with the connection - to which the channel belongs. - - - number - The number of the channel, which uniquely identifies it within - a connection. - - - user - Username associated with the channel. - - - vhost - Virtual host in which the channel operates. - - - transactional - True if the channel is in transactional mode, false otherwise. - - - consumer_count - Number of logical AMQP consumers retrieving messages via - the channel. - - - messages_unacknowledged - Number of messages delivered via this channel but not - yet acknowledged. - - - acks_uncommitted - Number of acknowledgements received in an as yet - uncommitted transaction. - - - prefetch_count - QoS prefetch count limit in force, 0 if unlimited. - - - - If no channelinfoitems are specified then pid, - user, transactional, consumer_count, and - messages_unacknowledged are assumed. - - - - For example: - - rabbitmqctl list_channels connection messages_unacknowledged - - This command displays the connection process and count - of unacknowledged messages for each channel. - - - - - - list_consumers - - - List consumers, i.e. subscriptions to a queue's message - stream. Each line printed shows, separated by tab - characters, the name of the queue subscribed to, the id of - the channel process via which the subscription was created - and is managed, the consumer tag which uniquely identifies - the subscription within a channel, and a boolean - indicating whether acknowledgements are expected for - messages delivered to this consumer. - - - The output format for "list_consumers" is a list of rows containing, - in order, the queue name, channel process id, consumer tag, and a - boolean indicating whether acknowledgements are expected from the - consumer. - - - - - - - - diff --git a/docs/remove-namespaces.xsl b/docs/remove-namespaces.xsl deleted file mode 100644 index 58a1e826..00000000 --- a/docs/remove-namespaces.xsl +++ /dev/null @@ -1,17 +0,0 @@ - - - - - - - - - - - - - - - diff --git a/docs/usage.xsl b/docs/usage.xsl deleted file mode 100644 index a6cebd93..00000000 --- a/docs/usage.xsl +++ /dev/null @@ -1,78 +0,0 @@ - - - - - - - - - - -%% Generated, do not edit! --module(). --export([usage/0]). -usage() -> %QUOTE%Usage: - - - - - - - - - - - - Options: - - - - - , - - - - - - - - - - - - - Commands: - - - - - - - - - -%QUOTE%. - - - -<> must be a member of the list [, ]. - - - - - - - - - -[] -<> - - diff --git a/generate_deps b/generate_deps deleted file mode 100644 index 29587b5a..00000000 --- a/generate_deps +++ /dev/null @@ -1,54 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- --mode(compile). - -main([IncludeDir, ErlDir, EbinDir, TargetFile]) -> - ErlDirContents = filelib:wildcard("*.erl", ErlDir), - ErlFiles = [filename:join(ErlDir, FileName) || FileName <- ErlDirContents], - Modules = sets:from_list( - [list_to_atom(filename:basename(FileName, ".erl")) || - FileName <- ErlDirContents]), - Headers = sets:from_list( - [filename:join(IncludeDir, FileName) || - FileName <- filelib:wildcard("*.hrl", IncludeDir)]), - Deps = lists:foldl( - fun (Path, Deps1) -> - dict:store(Path, detect_deps(IncludeDir, EbinDir, - Modules, Headers, Path), - Deps1) - end, dict:new(), ErlFiles), - {ok, Hdl} = file:open(TargetFile, [write, delayed_write]), - dict:fold( - fun (_Path, [], ok) -> - ok; - (Path, Dep, ok) -> - Module = filename:basename(Path, ".erl"), - ok = file:write(Hdl, [EbinDir, "/", Module, ".beam: ", - Path]), - ok = sets:fold(fun (E, ok) -> file:write(Hdl, [" ", E]) end, - ok, Dep), - file:write(Hdl, ["\n"]) - end, ok, Deps), - ok = file:write(Hdl, [TargetFile, ": ", escript:script_name(), "\n"]), - ok = file:sync(Hdl), - ok = file:close(Hdl). - -detect_deps(IncludeDir, EbinDir, Modules, Headers, Path) -> - {ok, Forms} = epp:parse_file(Path, [IncludeDir], [{use_specs, true}]), - lists:foldl( - fun ({attribute, _LineNumber, Attribute, Behaviour}, Deps) - when Attribute =:= behaviour orelse Attribute =:= behavior -> - case sets:is_element(Behaviour, Modules) of - true -> sets:add_element( - [EbinDir, "/", atom_to_list(Behaviour), ".beam"], - Deps); - false -> Deps - end; - ({attribute, _LineNumber, file, {FileName, _LineNumber1}}, Deps) -> - case sets:is_element(FileName, Headers) of - true -> sets:add_element(FileName, Deps); - false -> Deps - end; - (_Form, Deps) -> - Deps - end, sets:new(), Forms). diff --git a/include/rabbit.hrl b/include/rabbit.hrl deleted file mode 100644 index 88b1b87e..00000000 --- a/include/rabbit.hrl +++ /dev/null @@ -1,199 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --record(user, {username, password}). --record(permission, {configure, write, read}). --record(user_vhost, {username, virtual_host}). --record(user_permission, {user_vhost, permission}). - --record(vhost, {virtual_host, dummy}). - --record(connection, {user, timeout_sec, frame_max, vhost, client_properties, - protocol}). - --record(content, - {class_id, - properties, %% either 'none', or a decoded record/tuple - properties_bin, %% either 'none', or an encoded properties binary - %% Note: at most one of properties and properties_bin can be - %% 'none' at once. - payload_fragments_rev %% list of binaries, in reverse order (!) - }). - --record(resource, {virtual_host, kind, name}). - --record(exchange, {name, type, durable, arguments}). - --record(amqqueue, {name, durable, auto_delete, exclusive_owner = none, - arguments, pid}). - -%% mnesia doesn't like unary records, so we add a dummy 'value' field --record(route, {binding, value = const}). --record(reverse_route, {reverse_binding, value = const}). - --record(binding, {exchange_name, key, queue_name, args = []}). --record(reverse_binding, {queue_name, key, exchange_name, args = []}). - --record(listener, {node, protocol, host, port}). - --record(basic_message, {exchange_name, routing_key, content, guid, - is_persistent}). - --record(ssl_socket, {tcp, ssl}). --record(delivery, {mandatory, immediate, txn, sender, message}). - --record(amqp_error, {name, explanation, method = none}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --include("rabbit_framing_spec.hrl"). - --type(maybe(T) :: T | 'none'). --type(erlang_node() :: atom()). --type(node_type() :: disc_only | disc | ram | unknown). --type(ssl_socket() :: #ssl_socket{}). --type(socket() :: port() | ssl_socket()). --type(thunk(T) :: fun(() -> T)). --type(info_key() :: atom()). --type(info() :: {info_key(), any()}). --type(regexp() :: binary()). --type(file_path() :: string()). - -%% this is really an abstract type, but dialyzer does not support them --type(guid() :: binary()). --type(txn() :: guid()). --type(pkey() :: guid()). --type(r(Kind) :: - #resource{virtual_host :: vhost(), - kind :: Kind, - name :: resource_name()}). --type(queue_name() :: r('queue')). --type(exchange_name() :: r('exchange')). --type(user() :: - #user{username :: username(), - password :: password()}). --type(permission() :: - #permission{configure :: regexp(), - write :: regexp(), - read :: regexp()}). --type(amqqueue() :: - #amqqueue{name :: queue_name(), - durable :: boolean(), - auto_delete :: boolean(), - exclusive_owner :: maybe(pid()), - arguments :: amqp_table(), - pid :: maybe(pid())}). --type(exchange() :: - #exchange{name :: exchange_name(), - type :: exchange_type(), - durable :: boolean(), - arguments :: amqp_table()}). --type(binding() :: - #binding{exchange_name :: exchange_name(), - queue_name :: queue_name(), - key :: binding_key()}). -%% TODO: make this more precise by tying specific class_ids to -%% specific properties --type(undecoded_content() :: - #content{class_id :: amqp_class_id(), - properties :: 'none', - properties_bin :: binary(), - payload_fragments_rev :: [binary()]} | - #content{class_id :: amqp_class_id(), - properties :: amqp_properties(), - properties_bin :: 'none', - payload_fragments_rev :: [binary()]}). --type(unencoded_content() :: undecoded_content()). --type(decoded_content() :: - #content{class_id :: amqp_class_id(), - properties :: amqp_properties(), - properties_bin :: maybe(binary()), - payload_fragments_rev :: [binary()]}). --type(encoded_content() :: - #content{class_id :: amqp_class_id(), - properties :: maybe(amqp_properties()), - properties_bin :: binary(), - payload_fragments_rev :: [binary()]}). --type(content() :: undecoded_content() | decoded_content()). --type(basic_message() :: - #basic_message{exchange_name :: exchange_name(), - routing_key :: routing_key(), - content :: content(), - guid :: guid(), - is_persistent :: boolean()}). --type(message() :: basic_message()). --type(delivery() :: - #delivery{mandatory :: boolean(), - immediate :: boolean(), - txn :: maybe(txn()), - sender :: pid(), - message :: message()}). -%% this really should be an abstract type --type(msg_id() :: non_neg_integer()). --type(qmsg() :: {queue_name(), pid(), msg_id(), boolean(), message()}). --type(listener() :: - #listener{node :: erlang_node(), - protocol :: atom(), - host :: string() | atom(), - port :: non_neg_integer()}). --type(not_found() :: {'error', 'not_found'}). --type(routing_result() :: 'routed' | 'unroutable' | 'not_delivered'). --type(amqp_error() :: - #amqp_error{name :: atom(), - explanation :: string(), - method :: atom()}). - --type(protocol() :: atom()). --endif. - -%%---------------------------------------------------------------------------- - --define(COPYRIGHT_MESSAGE, "Copyright (C) 2007-2010 LShift Ltd., Cohesive Financial Technologies LLC., and Rabbit Technologies Ltd."). --define(INFORMATION_MESSAGE, "Licensed under the MPL. See http://www.rabbitmq.com/"). --define(PROTOCOL_VERSION, "AMQP 0-9-1 / 0-9 / 0-8"). --define(ERTS_MINIMUM, "5.6.3"). - --define(MAX_WAIT, 16#ffffffff). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --ifdef(debug). --define(LOGDEBUG0(F), rabbit_log:debug(F)). --define(LOGDEBUG(F,A), rabbit_log:debug(F,A)). --define(LOGMESSAGE(D,C,M,Co), rabbit_log:message(D,C,M,Co)). --else. --define(LOGDEBUG0(F), ok). --define(LOGDEBUG(F,A), ok). --define(LOGMESSAGE(D,C,M,Co), ok). --endif. diff --git a/include/rabbit_backing_queue_spec.hrl b/include/rabbit_backing_queue_spec.hrl deleted file mode 100644 index 55cd126e..00000000 --- a/include/rabbit_backing_queue_spec.hrl +++ /dev/null @@ -1,63 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --type(fetch_result() :: - %% Message, IsDelivered, AckTag, Remaining_Len - ('empty'|{basic_message(), boolean(), ack(), non_neg_integer()})). --type(is_durable() :: boolean()). --type(attempt_recovery() :: boolean()). --type(purged_msg_count() :: non_neg_integer()). --type(ack_required() :: boolean()). - --spec(start/1 :: ([queue_name()]) -> 'ok'). --spec(init/3 :: (queue_name(), is_durable(), attempt_recovery()) -> state()). --spec(terminate/1 :: (state()) -> state()). --spec(delete_and_terminate/1 :: (state()) -> state()). --spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). --spec(publish/2 :: (basic_message(), state()) -> state()). --spec(publish_delivered/3 :: - (ack_required(), basic_message(), state()) -> {ack(), state()}). --spec(fetch/2 :: (ack_required(), state()) -> {fetch_result(), state()}). --spec(ack/2 :: ([ack()], state()) -> state()). --spec(tx_publish/3 :: (txn(), basic_message(), state()) -> state()). --spec(tx_ack/3 :: (txn(), [ack()], state()) -> state()). --spec(tx_rollback/2 :: (txn(), state()) -> {[ack()], state()}). --spec(tx_commit/3 :: (txn(), fun (() -> any()), state()) -> {[ack()], state()}). --spec(requeue/2 :: ([ack()], state()) -> state()). --spec(len/1 :: (state()) -> non_neg_integer()). --spec(is_empty/1 :: (state()) -> boolean()). --spec(set_ram_duration_target/2 :: - (('undefined' | 'infinity' | number()), state()) -> state()). --spec(ram_duration/1 :: (state()) -> {number(), state()}). --spec(needs_sync/1 :: (state()) -> boolean()). --spec(sync/1 :: (state()) -> state()). --spec(handle_pre_hibernate/1 :: (state()) -> state()). --spec(status/1 :: (state()) -> [{atom(), any()}]). diff --git a/include/rabbit_exchange_type_spec.hrl b/include/rabbit_exchange_type_spec.hrl deleted file mode 100644 index cb564365..00000000 --- a/include/rabbit_exchange_type_spec.hrl +++ /dev/null @@ -1,43 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(publish/2 :: (exchange(), delivery()) -> {routing_result(), [pid()]}). --spec(validate/1 :: (exchange()) -> 'ok'). --spec(create/1 :: (exchange()) -> 'ok'). --spec(recover/2 :: (exchange(), list(binding())) -> 'ok'). --spec(delete/2 :: (exchange(), list(binding())) -> 'ok'). --spec(add_binding/2 :: (exchange(), binding()) -> 'ok'). --spec(remove_bindings/2 :: (exchange(), list(binding())) -> 'ok'). --spec(assert_args_equivalence/2 :: (exchange(), amqp_table()) -> 'ok'). - --endif. diff --git a/include/rabbit_msg_store_index.hrl b/include/rabbit_msg_store_index.hrl deleted file mode 100644 index 88a474ae..00000000 --- a/include/rabbit_msg_store_index.hrl +++ /dev/null @@ -1,58 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --include("rabbit_msg_store.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(dir() :: any()). --type(index_state() :: any()). --type(keyvalue() :: any()). --type(fieldpos() :: non_neg_integer()). --type(fieldvalue() :: any()). - --spec(new/1 :: (dir()) -> index_state()). --spec(recover/1 :: (dir()) -> {'ok', index_state()} | {'error', any()}). --spec(lookup/2 :: (guid(), index_state()) -> ('not_found' | keyvalue())). --spec(insert/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update_fields/3 :: (guid(), ({fieldpos(), fieldvalue()} | - [{fieldpos(), fieldvalue()}]), - index_state()) -> 'ok'). --spec(delete/2 :: (guid(), index_state()) -> 'ok'). --spec(delete_by_file/2 :: (fieldvalue(), index_state()) -> 'ok'). --spec(terminate/1 :: (index_state()) -> any()). - --endif. - -%%---------------------------------------------------------------------------- diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec deleted file mode 100644 index c5950be4..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ /dev/null @@ -1,183 +0,0 @@ -%define debug_package %{nil} - -Name: rabbitmq-server -Version: %%VERSION%% -Release: 1%{?dist} -License: MPLv1.1 -Group: Development/Libraries -Source: http://www.rabbitmq.com/releases/rabbitmq-server/v%{version}/%{name}-%{version}.tar.gz -Source1: rabbitmq-server.init -Source2: rabbitmq-script-wrapper -Source3: rabbitmq-server.logrotate -Source4: rabbitmq-asroot-script-wrapper -Source5: rabbitmq-server.ocf -URL: http://www.rabbitmq.com/ -BuildArch: noarch -BuildRequires: erlang >= R12B-3, python-simplejson, xmlto, libxslt -Requires: erlang >= R12B-3, logrotate -BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-%{_arch}-root -Summary: The RabbitMQ server -Requires(post): %%REQUIRES%% -Requires(pre): %%REQUIRES%% - -%description -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -# We want to install into /usr/lib, even on 64-bit platforms -%define _rabbit_libdir %{_exec_prefix}/lib/rabbitmq -%define _rabbit_erllibdir %{_rabbit_libdir}/lib/rabbitmq_server-%{version} -%define _rabbit_wrapper %{_builddir}/`basename %{S:2}` -%define _rabbit_asroot_wrapper %{_builddir}/`basename %{S:4}` -%define _rabbit_server_ocf %{_builddir}/`basename %{S:5}` - -%define _maindir %{buildroot}%{_rabbit_erllibdir} - -%prep -%setup -q - -%build -cp %{S:2} %{_rabbit_wrapper} -cp %{S:4} %{_rabbit_asroot_wrapper} -cp %{S:5} %{_rabbit_server_ocf} -make %{?_smp_mflags} - -%install -rm -rf %{buildroot} - -make install TARGET_DIR=%{_maindir} \ - SBIN_DIR=%{buildroot}%{_rabbit_libdir}/bin \ - MAN_DIR=%{buildroot}%{_mandir} - -mkdir -p %{buildroot}%{_localstatedir}/lib/rabbitmq/mnesia -mkdir -p %{buildroot}%{_localstatedir}/log/rabbitmq - -#Copy all necessary lib files etc. -install -p -D -m 0755 %{S:1} %{buildroot}%{_initrddir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmqctl -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-multi -install -p -D -m 0755 %{_rabbit_asroot_wrapper} %{buildroot}%{_sbindir}/rabbitmq-activate-plugins -install -p -D -m 0755 %{_rabbit_asroot_wrapper} %{buildroot}%{_sbindir}/rabbitmq-deactivate-plugins -install -p -D -m 0755 %{_rabbit_server_ocf} %{buildroot}%{_exec_prefix}/lib/ocf/resource.d/rabbitmq/rabbitmq-server - -install -p -D -m 0644 %{S:3} %{buildroot}%{_sysconfdir}/logrotate.d/rabbitmq-server - -mkdir -p %{buildroot}%{_sysconfdir}/rabbitmq - -rm %{_maindir}/LICENSE %{_maindir}/LICENSE-MPL-RabbitMQ %{_maindir}/INSTALL - -#Build the list of files -rm -f %{_builddir}/%{name}.files -echo '%defattr(-,root,root, -)' >> %{_builddir}/%{name}.files -(cd %{buildroot}; \ - find . -type f ! -regex '\.%{_sysconfdir}.*' \ - ! -regex '\.\(%{_rabbit_erllibdir}\|%{_rabbit_libdir}\).*' \ - | sed -e 's/^\.//' >> %{_builddir}/%{name}.files) - -%pre - -if [ $1 -gt 1 ]; then - # Upgrade - stop previous instance of rabbitmq-server init.d script - /sbin/service rabbitmq-server stop -fi - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - groupadd -r rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - useradd -r -g rabbitmq -d %{_localstatedir}/lib/rabbitmq rabbitmq \ - -c "RabbitMQ messaging server" -fi - -%post -/sbin/chkconfig --add %{name} - -%preun -if [ $1 = 0 ]; then - #Complete uninstall - /sbin/service rabbitmq-server stop - /sbin/chkconfig --del rabbitmq-server - - # We do not remove /var/log and /var/lib directories - # Leave rabbitmq user and group -fi - -# Clean out plugin activation state, both on uninstall and upgrade -rm -rf %{_rabbit_erllibdir}/priv -for ext in rel script boot ; do - rm -f %{_rabbit_erllibdir}/ebin/rabbit.$ext -done - -%files -f ../%{name}.files -%defattr(-,root,root,-) -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/lib/rabbitmq -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/log/rabbitmq -%dir %{_sysconfdir}/rabbitmq -%{_rabbit_erllibdir} -%{_rabbit_libdir} -%{_initrddir}/rabbitmq-server -%config(noreplace) %{_sysconfdir}/logrotate.d/rabbitmq-server -%doc LICENSE LICENSE-MPL-RabbitMQ - -%clean -rm -rf %{buildroot} - -%changelog -* Tue Jun 15 2010 Matthew Sackman 1.8.0-1 -- New Upstream Release - -* Mon Feb 15 2010 Matthew Sackman 1.7.2-1 -- New Upstream Release - -* Fri Jan 22 2010 Matthew Sackman 1.7.1-1 -- New Upstream Release - -* Mon Oct 5 2009 David Wragg 1.7.0-1 -- New upstream release - -* Wed Jun 17 2009 Matthias Radestock 1.6.0-1 -- New upstream release - -* Tue May 19 2009 Matthias Radestock 1.5.5-1 -- Maintenance release for the 1.5.x series - -* Mon Apr 6 2009 Matthias Radestock 1.5.4-1 -- Maintenance release for the 1.5.x series - -* Tue Feb 24 2009 Tony Garnock-Jones 1.5.3-1 -- Maintenance release for the 1.5.x series - -* Mon Feb 23 2009 Tony Garnock-Jones 1.5.2-1 -- Maintenance release for the 1.5.x series - -* Mon Jan 19 2009 Ben Hood <0x6e6562@gmail.com> 1.5.1-1 -- Maintenance release for the 1.5.x series - -* Wed Dec 17 2008 Matthias Radestock 1.5.0-1 -- New upstream release - -* Thu Jul 24 2008 Tony Garnock-Jones 1.4.0-1 -- New upstream release - -* Mon Mar 3 2008 Adrien Pierard 1.3.0-1 -- New upstream release - -* Wed Sep 26 2007 Simon MacMullen 1.2.0-1 -- New upstream release - -* Wed Aug 29 2007 Simon MacMullen 1.1.1-1 -- New upstream release - -* Mon Jul 30 2007 Simon MacMullen 1.1.0-1.alpha -- New upstream release - -* Tue Jun 12 2007 Hubert Plociniczak 1.0.0-1.20070607 -- Building from source tarball, added starting script, stopping - -* Mon May 21 2007 Hubert Plociniczak 1.0.0-1.alpha -- Initial build of server library of RabbitMQ package diff --git a/packaging/common/rabbitmq-server.ocf b/packaging/common/rabbitmq-server.ocf deleted file mode 100755 index db0ed70b..00000000 --- a/packaging/common/rabbitmq-server.ocf +++ /dev/null @@ -1,374 +0,0 @@ -#!/bin/sh -## -## OCF Resource Agent compliant rabbitmq-server resource script. -## - -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2010 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2010 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -## OCF instance parameters -## OCF_RESKEY_multi -## OCF_RESKEY_ctl -## OCF_RESKEY_nodename -## OCF_RESKEY_ip -## OCF_RESKEY_port -## OCF_RESKEY_cluster_config_file -## OCF_RESKEY_config_file -## OCF_RESKEY_log_base -## OCF_RESKEY_mnesia_base -## OCF_RESKEY_server_start_args - -####################################################################### -# Initialization: - -: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/heartbeat} -. ${OCF_FUNCTIONS_DIR}/.ocf-shellfuncs - -####################################################################### - -OCF_RESKEY_multi_default="/usr/sbin/rabbitmq-multi" -OCF_RESKEY_ctl_default="/usr/sbin/rabbitmqctl" -OCF_RESKEY_nodename_default="rabbit@localhost" -OCF_RESKEY_log_base_default="/var/log/rabbitmq" -: ${OCF_RESKEY_multi=${OCF_RESKEY_multi_default}} -: ${OCF_RESKEY_ctl=${OCF_RESKEY_ctl_default}} -: ${OCF_RESKEY_nodename=${OCF_RESKEY_nodename_default}} -: ${OCF_RESKEY_log_base=${OCF_RESKEY_log_base_default}} - -meta_data() { - cat < - - -1.0 - - -Resource agent for RabbitMQ-server - - -Resource agent for RabbitMQ-server - - - - -The path to the rabbitmq-multi script - -Path to rabbitmq-multi - - - - - -The path to the rabbitmqctl script - -Path to rabbitmqctl - - - - - -The node name for rabbitmq-server - -Node name - - - - - -The IP address for rabbitmq-server to listen on - -IP Address - - - - - -The IP Port for rabbitmq-server to listen on - -IP Port - - - - - -Location of the cluster config file - -Cluster config file path - - - - - -Location of the config file - -Config file path - - - - - -Location of the directory under which logs will be created - -Log base path - - - - - -Location of the directory under which mnesia will store data - -Mnesia base path - - - - - -Additional arguments provided to the server on startup - -Server start arguments - - - - - - - - - - - - - - -END -} - -rabbit_usage() { - cat < /dev/null 2> /dev/null - rc=$? - case "$rc" in - 0) - ocf_log debug "RabbitMQ server is running normally" - return $OCF_SUCCESS - ;; - 2) - ocf_log debug "RabbitMQ server is not running" - return $OCF_NOT_RUNNING - ;; - *) - ocf_log err "Unexpected return from rabbitmqctl $NODENAME_ARG status: $rc" - exit $OCF_ERR_GENERIC - esac -} - -rabbit_start() { - local rc - - if rabbit_status; then - ocf_log info "Resource already running." - return $OCF_SUCCESS - fi - - export_vars - - $RABBITMQ_MULTI start_all 1 > ${RABBITMQ_LOG_BASE}/startup_log 2> ${RABBITMQ_LOG_BASE}/startup_err & - rc=$? - - if [ "$rc" != 0 ]; then - ocf_log err "rabbitmq-server start command failed: $RABBITMQ_MULTI start_all 1, $rc" - return $rc - fi - - # Spin waiting for the server to come up. - # Let the CRM/LRM time us out if required - start_wait=1 - while [ $start_wait = 1 ]; do - rabbit_status - rc=$? - if [ "$rc" = $OCF_SUCCESS ]; then - start_wait=0 - elif [ "$rc" != $OCF_NOT_RUNNING ]; then - ocf_log info "rabbitmq-server start failed: $rc" - exit $OCF_ERR_GENERIC - fi - sleep 1 - done - - return $OCF_SUCCESS -} - -rabbit_stop() { - local rc - - if ! rabbit_status; then - ocf_log info "Resource not running." - return $OCF_SUCCESS - fi - - $RABBITMQ_MULTI stop_all & - rc=$? - - if [ "$rc" != 0 ]; then - ocf_log err "rabbitmq-server stop command failed: $RABBITMQ_MULTI stop_all, $rc" - return $rc - fi - - # Spin waiting for the server to shut down. - # Let the CRM/LRM time us out if required - stop_wait=1 - while [ $stop_wait = 1 ]; do - rabbit_status - rc=$? - if [ "$rc" = $OCF_NOT_RUNNING ]; then - stop_wait=0 - break - elif [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server stop failed: $rc" - exit $OCF_ERR_GENERIC - fi - sleep 1 - done - - return $OCF_SUCCESS -} - -rabbit_monitor() { - rabbit_status - return $? -} - -case $__OCF_ACTION in - meta-data) - meta_data - exit $OCF_SUCCESS - ;; - usage|help) - rabbit_usage - exit $OCF_SUCCESS - ;; -esac - -if ocf_is_probe; then - rabbit_validate_partial -else - rabbit_validate_full -fi - -case $__OCF_ACTION in - start) - rabbit_start - ;; - stop) - rabbit_stop - ;; - status|monitor) - rabbit_monitor - ;; - validate-all) - exit $OCF_SUCCESS - ;; - *) - rabbit_usage - exit $OCF_ERR_UNIMPLEMENTED - ;; -esac - -exit $? diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog deleted file mode 100644 index 3c0d6937..00000000 --- a/packaging/debs/Debian/debian/changelog +++ /dev/null @@ -1,114 +0,0 @@ -rabbitmq-server (1.8.0-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Tue, 15 Jun 2010 12:48:48 +0100 - -rabbitmq-server (1.7.2-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Mon, 15 Feb 2010 15:54:47 +0000 - -rabbitmq-server (1.7.1-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Fri, 22 Jan 2010 14:14:29 +0000 - -rabbitmq-server (1.7.0-1) intrepid; urgency=low - - * New Upstream Release - - -- David Wragg Mon, 05 Oct 2009 13:44:41 +0100 - -rabbitmq-server (1.6.0-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 16 Jun 2009 15:02:58 +0100 - -rabbitmq-server (1.5.5-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 19 May 2009 09:57:54 +0100 - -rabbitmq-server (1.5.4-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Mon, 06 Apr 2009 09:19:32 +0100 - -rabbitmq-server (1.5.3-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Tue, 24 Feb 2009 18:23:33 +0000 - -rabbitmq-server (1.5.2-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Mon, 23 Feb 2009 16:03:38 +0000 - -rabbitmq-server (1.5.1-1) hardy; urgency=low - - * New Upstream Release - - -- Simon MacMullen Mon, 19 Jan 2009 15:46:13 +0000 - -rabbitmq-server (1.5.0-1) testing; urgency=low - - * New Upstream Release - - -- Matthias Radestock Wed, 17 Dec 2008 18:23:47 +0000 - -rabbitmq-server (1.4.0-1) testing; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Thu, 24 Jul 2008 13:21:48 +0100 - -rabbitmq-server (1.3.0-1) testing; urgency=low - - * New Upstream Release - - -- Adrien Pierard Mon, 03 Mar 2008 15:34:38 +0000 - -rabbitmq-server (1.2.0-2) testing; urgency=low - - * Fixed rabbitmqctl wrapper script - - -- Simon MacMullen Fri, 05 Oct 2007 11:55:00 +0100 - -rabbitmq-server (1.2.0-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 26 Sep 2007 11:49:26 +0100 - -rabbitmq-server (1.1.1-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 29 Aug 2007 12:03:15 +0100 - -rabbitmq-server (1.1.0-alpha-2) testing; urgency=low - - * Fixed erlang-nox dependency - - -- Simon MacMullen Thu, 02 Aug 2007 11:27:13 +0100 - -rabbitmq-server (1.1.0-alpha-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Fri, 20 Jul 2007 18:17:33 +0100 - -rabbitmq-server (1.0.0-alpha-1) unstable; urgency=low - - * Initial release - - -- Tony Garnock-Jones Wed, 31 Jan 2007 19:06:33 +0000 - diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile deleted file mode 100644 index 38099bdd..00000000 --- a/packaging/macports/Makefile +++ /dev/null @@ -1,56 +0,0 @@ -TARBALL_DIR=../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -# The URL at which things really get deployed -REAL_WEB_URL=http://www.rabbitmq.com/ - -# The user@host for an OSX machine with macports installed, which is -# used to generate the macports index files. That step will be -# skipped if this variable is not set. If you do set it, you might -# also want to set SSH_OPTS, which allows adding ssh options, e.g. to -# specify a key that will get into the OSX machine without a -# passphrase. -MACPORTS_USERHOST= - -MACPORTS_DIR=macports -DEST=$(MACPORTS_DIR)/net/rabbitmq-server - -all: macports - -dirs: - mkdir -p $(DEST)/files - -$(DEST)/Portfile: Portfile.in - for algo in md5 sha1 rmd160 ; do \ - checksum=$$(openssl $$algo $(TARBALL_DIR)/$(TARBALL) | awk '{print $$NF}') ; \ - echo "s|@$$algo@|$$checksum|g" ; \ - done >checksums.sed - sed -e "s|@VERSION@|$(VERSION)|g;s|@BASE_URL@|$(REAL_WEB_URL)|g" \ - -f checksums.sed <$^ >$@ - rm checksums.sed - -macports: dirs $(DEST)/Portfile - for f in rabbitmq-asroot-script-wrapper rabbitmq-script-wrapper ; do \ - cp $(COMMON_DIR)/$$f $(DEST)/files ; \ - done - cp erlang-r14a-build-fix.diff $(DEST)/files - sed -i -e 's|@SU_RABBITMQ_SH_C@|SHELL=/bin/sh su -m rabbitmq -c|' \ - $(DEST)/files/rabbitmq-script-wrapper - cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files - if [ -n "$(MACPORTS_USERHOST)" ] ; then \ - tar cf - -C $(MACPORTS_DIR) . | ssh $(SSH_OPTS) $(MACPORTS_USERHOST) ' \ - d="/tmp/mkportindex.$$$$" ; \ - mkdir $$d \ - && cd $$d \ - && tar xf - \ - && /opt/local/bin/portindex -a -o . >/dev/null \ - && tar cf - . \ - && cd \ - && rm -rf $$d' \ - | tar xf - -C $(MACPORTS_DIR) ; \ - fi - -clean: - rm -rf $(DEST) checksums.sed diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in deleted file mode 100644 index 059092bf..00000000 --- a/packaging/macports/Portfile.in +++ /dev/null @@ -1,123 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version @VERSION@ -revision 2 -categories net -maintainers paperplanes.de:meyer rabbitmq.com:tonyg openmaintainer -platforms darwin -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage @BASE_URL@ -master_sites @BASE_URL@releases/rabbitmq-server/v${version}/ - -checksums \ - md5 @md5@ \ - sha1 @sha1@ \ - rmd160 @rmd160@ -patchfiles erlang-r14a-build-fix.diff - -depends_lib port:erlang -depends_build port:xmlto port:libxslt - -platform darwin 7 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -platform darwin 8 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -platform darwin 9 { - depends_build-append port:py25-simplejson - build.args PYTHON=${prefix}/bin/python2.5 -} -# no need for simplejson on Snow Leopard or higher - - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin -set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin - -use_configure no - -use_parallel_build yes - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq.conf):${prefix}\\1:g" \ - ${realsbin}/rabbitmq-env - reinplace -E "s:(CLUSTER_CONFIG_FILE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(LOG_BASE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(MNESIA_BASE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - reinplace -E "s:(PIDS_FILE)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-multi - xinstall -m 555 ${filespath}/rabbitmq-asroot-script-wrapper \ - ${wrappersbin}/rabbitmq-activate-plugins - - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-activate-plugins - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-activate-plugins - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmqctl - file copy ${wrappersbin}/rabbitmq-activate-plugins ${wrappersbin}/rabbitmq-deactivate-plugins -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/erlang-r14a-build-fix.diff b/packaging/macports/erlang-r14a-build-fix.diff deleted file mode 100644 index bf61cac3..00000000 --- a/packaging/macports/erlang-r14a-build-fix.diff +++ /dev/null @@ -1,15 +0,0 @@ -fix syntax error that prevented compilation under Erlang/OTP R14A - -diff --git src/rabbit_exchange.erl.orig src/rabbit_exchange.erl ---- src/rabbit_exchange.erl.orig -+++ src/rabbit_exchange.erl -@@ -100,7 +100,7 @@ - - %%---------------------------------------------------------------------------- - ---define(INFO_KEYS, [name, type, durable, auto_delete, arguments]. -+-define(INFO_KEYS, [name, type, durable, auto_delete, arguments]). - - recover() -> - Exs = rabbit_misc:table_fold( - diff --git a/packaging/macports/make-port-diff.sh b/packaging/macports/make-port-diff.sh deleted file mode 100755 index 3eb1b9f5..00000000 --- a/packaging/macports/make-port-diff.sh +++ /dev/null @@ -1,27 +0,0 @@ -#!/bin/bash - -# This script grabs the latest rabbitmq-server bits from the main -# macports subversion repo, and from the rabbitmq.com macports repo, -# and produces a diff from the former to the latter for submission -# through the macports trac. - -set -e - -dir=/tmp/$(basename $0).$$ -mkdir -p $dir/macports $dir/rabbitmq - -# Get the files from the macports subversion repo -cd $dir/macports -svn checkout http://svn.macports.org/repository/macports/trunk/dports/net/rabbitmq-server/ 2>&1 >/dev/null - -# Clear out the svn $id tag -sed -i -e 's|^# \$.*$|# $Id$|' rabbitmq-server/Portfile - -# Get the files from the rabbitmq.com macports repo -cd ../rabbitmq -curl -s http://www.rabbitmq.com/releases/macports/net/rabbitmq-server.tgz | tar xzf - - -cd .. -diff -Naur --exclude=.svn macports rabbitmq -cd / -rm -rf $dir diff --git a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff deleted file mode 100644 index 45b49496..00000000 --- a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff +++ /dev/null @@ -1,10 +0,0 @@ ---- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 -+++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 -@@ -22,6 +22,7 @@ - ; - --pid=none - -+UserNamerabbitmq - Debug - Disabled - OnDemand diff --git a/scripts/rabbitmq-multi b/scripts/rabbitmq-multi deleted file mode 100755 index 59050692..00000000 --- a/scripts/rabbitmq-multi +++ /dev/null @@ -1,88 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2010 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2010 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## -[ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname -s` -NODENAME=rabbit@${HOSTNAME%%.*} -SCRIPT_HOME=$(dirname $0) -PIDS_FILE=/var/lib/rabbitmq/pids -MULTI_ERL_ARGS= -MULTI_START_ARGS= -CONFIG_FILE=/etc/rabbitmq/rabbitmq - -. `dirname $0`/rabbitmq-env - -DEFAULT_NODE_IP_ADDRESS=0.0.0.0 -DEFAULT_NODE_PORT=5672 -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} -[ "x" = "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} -if [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] -then - if [ "x" != "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_IP_ADDRESS=${DEFAULT_NODE_IP_ADDRESS} - fi -else - if [ "x" = "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_PORT=${DEFAULT_NODE_PORT} - fi -fi -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_SCRIPT_HOME" ] && RABBITMQ_SCRIPT_HOME=${SCRIPT_HOME} -[ "x" = "x$RABBITMQ_PIDS_FILE" ] && RABBITMQ_PIDS_FILE=${PIDS_FILE} -[ "x" = "x$RABBITMQ_MULTI_ERL_ARGS" ] && RABBITMQ_MULTI_ERL_ARGS=${MULTI_ERL_ARGS} -[ "x" = "x$RABBITMQ_MULTI_START_ARGS" ] && RABBITMQ_MULTI_START_ARGS=${MULTI_START_ARGS} -[ "x" = "x$RABBITMQ_CONFIG_FILE" ] && RABBITMQ_CONFIG_FILE=${CONFIG_FILE} - -export \ - RABBITMQ_NODENAME \ - RABBITMQ_NODE_IP_ADDRESS \ - RABBITMQ_NODE_PORT \ - RABBITMQ_SCRIPT_HOME \ - RABBITMQ_PIDS_FILE \ - RABBITMQ_CONFIG_FILE - -RABBITMQ_CONFIG_ARG= -[ -f "${RABBITMQ_CONFIG_FILE}.config" ] && RABBITMQ_CONFIG_ARG="-config ${RABBITMQ_CONFIG_FILE}" - -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_MULTI_ERL_ARGS, may contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - -exec erl \ - -pa "${RABBITMQ_HOME}/ebin" \ - -noinput \ - -hidden \ - ${RABBITMQ_MULTI_ERL_ARGS} \ - -sname rabbitmq_multi$$ \ - ${RABBITMQ_CONFIG_ARG} \ - -s rabbit_multi \ - ${RABBITMQ_MULTI_START_ARGS} \ - -extra "$@" diff --git a/scripts/rabbitmq-multi.bat b/scripts/rabbitmq-multi.bat deleted file mode 100644 index a4f8c8b4..00000000 --- a/scripts/rabbitmq-multi.bat +++ /dev/null @@ -1,99 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License at -REM http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -REM License for the specific language governing rights and limitations -REM under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developers of the Original Code are LShift Ltd, -REM Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -REM Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -REM are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -REM Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -REM Ltd. Portions created by Cohesive Financial Technologies LLC are -REM Copyright (C) 2007-2010 Cohesive Financial Technologies -REM LLC. Portions created by Rabbit Technologies Ltd are Copyright -REM (C) 2007-2010 Rabbit Technologies Ltd. -REM -REM All Rights Reserved. -REM -REM Contributor(s): ______________________________________. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\RabbitMQ -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=0.0.0.0 - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -set RABBITMQ_PIDS_FILE=!RABBITMQ_BASE!\rabbitmq.pids -set RABBITMQ_SCRIPT_HOME=!TDP0! - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!TDP0!..\ebin" ^ --noinput -hidden ^ -!RABBITMQ_MULTI_ERL_ARGS! ^ --sname rabbitmq_multi ^ -!RABBITMQ_CONFIG_ARG! ^ --s rabbit_multi ^ -!RABBITMQ_MULTI_START_ARGS! ^ --extra !STAR! - -endlocal -endlocal diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server deleted file mode 100755 index 2261b56e..00000000 --- a/scripts/rabbitmq-server +++ /dev/null @@ -1,129 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2010 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2010 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -[ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname -s` -NODENAME=rabbit@${HOSTNAME%%.*} -SERVER_ERL_ARGS="+K true +A30 +P 1048576 \ --kernel inet_default_listen_options [{nodelay,true}] \ --kernel inet_default_connect_options [{nodelay,true}]" -CLUSTER_CONFIG_FILE=/etc/rabbitmq/rabbitmq_cluster.config -CONFIG_FILE=/etc/rabbitmq/rabbitmq -LOG_BASE=/var/log/rabbitmq -MNESIA_BASE=/var/lib/rabbitmq/mnesia -SERVER_START_ARGS= - -. `dirname $0`/rabbitmq-env - -DEFAULT_NODE_IP_ADDRESS=0.0.0.0 -DEFAULT_NODE_PORT=5672 -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} -[ "x" = "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} -if [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] -then - if [ "x" != "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_IP_ADDRESS=${DEFAULT_NODE_IP_ADDRESS} - fi -else - if [ "x" = "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_PORT=${DEFAULT_NODE_PORT} - fi -fi -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_SERVER_ERL_ARGS" ] && RABBITMQ_SERVER_ERL_ARGS=${SERVER_ERL_ARGS} -[ "x" = "x$RABBITMQ_CLUSTER_CONFIG_FILE" ] && RABBITMQ_CLUSTER_CONFIG_FILE=${CLUSTER_CONFIG_FILE} -[ "x" = "x$RABBITMQ_CONFIG_FILE" ] && RABBITMQ_CONFIG_FILE=${CONFIG_FILE} -[ "x" = "x$RABBITMQ_LOG_BASE" ] && RABBITMQ_LOG_BASE=${LOG_BASE} -[ "x" = "x$RABBITMQ_MNESIA_BASE" ] && RABBITMQ_MNESIA_BASE=${MNESIA_BASE} -[ "x" = "x$RABBITMQ_SERVER_START_ARGS" ] && RABBITMQ_SERVER_START_ARGS=${SERVER_START_ARGS} - -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${MNESIA_DIR} -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME} - -## Log rotation -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS=${LOGS} -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}.log" -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS=${SASL_LOGS} -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}-sasl.log" -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=${BACKUP_EXTENSION} -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=".1" - -[ -f "${RABBITMQ_LOGS}" ] && cat "${RABBITMQ_LOGS}" >> "${RABBITMQ_LOGS}${RABBITMQ_BACKUP_EXTENSION}" -[ -f "${RABBITMQ_SASL_LOGS}" ] && cat "${RABBITMQ_SASL_LOGS}" >> "${RABBITMQ_SASL_LOGS}${RABBITMQ_BACKUP_EXTENSION}" - -if [ -f "$RABBITMQ_CLUSTER_CONFIG_FILE" ]; then - RABBITMQ_CLUSTER_CONFIG_OPTION="-rabbit cluster_config \"$RABBITMQ_CLUSTER_CONFIG_FILE\"" -else - RABBITMQ_CLUSTER_CONFIG_OPTION="" -fi - -RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' - -RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" -if [ -f "${RABBITMQ_EBIN_ROOT}/rabbit.boot" ] && [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then - RABBITMQ_BOOT_FILE="${RABBITMQ_EBIN_ROOT}/rabbit" - RABBITMQ_EBIN_PATH="" -else - RABBITMQ_BOOT_FILE=start_sasl - RABBITMQ_EBIN_PATH="-pa ${RABBITMQ_EBIN_ROOT}" - [ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT="${RABBITMQ_START_RABBIT} -s rabbit" -fi -RABBITMQ_CONFIG_ARG= -[ -f "${RABBITMQ_CONFIG_FILE}.config" ] && RABBITMQ_CONFIG_ARG="-config ${RABBITMQ_CONFIG_FILE}" - -RABBITMQ_LISTEN_ARG= -[ "x" != "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$RABBITMQ_NODE_IP_ADDRESS" ] && RABBITMQ_LISTEN_ARG="-rabbit tcp_listeners [{\""${RABBITMQ_NODE_IP_ADDRESS}"\","${RABBITMQ_NODE_PORT}"}]" - -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_SERVER_ERL_ARGS, contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - -exec erl \ - ${RABBITMQ_EBIN_PATH} \ - ${RABBITMQ_START_RABBIT} \ - -sname ${RABBITMQ_NODENAME} \ - -boot ${RABBITMQ_BOOT_FILE} \ - ${RABBITMQ_CONFIG_ARG} \ - +W w \ - ${RABBITMQ_SERVER_ERL_ARGS} \ - ${RABBITMQ_LISTEN_ARG} \ - -sasl errlog_type error \ - -kernel error_logger '{file,"'${RABBITMQ_LOGS}'"}' \ - -sasl sasl_error_logger '{file,"'${RABBITMQ_SASL_LOGS}'"}' \ - -os_mon start_cpu_sup true \ - -os_mon start_disksup false \ - -os_mon start_memsup false \ - -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - ${RABBITMQ_CLUSTER_CONFIG_OPTION} \ - ${RABBITMQ_SERVER_START_ARGS} \ - "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat deleted file mode 100644 index a290f935..00000000 --- a/scripts/rabbitmq-server.bat +++ /dev/null @@ -1,169 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License at -REM http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -REM License for the specific language governing rights and limitations -REM under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developers of the Original Code are LShift Ltd, -REM Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -REM Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -REM are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -REM Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -REM Ltd. Portions created by Cohesive Financial Technologies LLC are -REM Copyright (C) 2007-2010 Cohesive Financial Technologies -REM LLC. Portions created by Rabbit Technologies Ltd are Copyright -REM (C) 2007-2010 Rabbit Technologies Ltd. -REM -REM All Rights Reserved. -REM -REM Contributor(s): ______________________________________. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\RabbitMQ -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=0.0.0.0 - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based of size...) is left as an exercice for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!-sasl.log - -set LOGS_BACKUP=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!.log!BACKUP_EXTENSION! -set SASL_LOGS_BACKUP=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!-sasl.log!BACKUP_EXTENSION! - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS_BACKUP!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS_BACKUP!" -) - -rem End of log management - - -if "!RABBITMQ_CLUSTER_CONFIG_FILE!"=="" ( - set RABBITMQ_CLUSTER_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq_cluster.config -) -set CLUSTER_CONFIG= -if not exist "!RABBITMQ_CLUSTER_CONFIG_FILE!" GOTO L1 -set CLUSTER_CONFIG=-rabbit cluster_config \""!RABBITMQ_CLUSTER_CONFIG_FILE:\=/!"\" -:L1 - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -if exist "!RABBITMQ_EBIN_ROOT!\rabbit.boot" ( - echo Using Custom Boot File "!RABBITMQ_EBIN_ROOT!\rabbit.boot" - set RABBITMQ_BOOT_FILE=!RABBITMQ_EBIN_ROOT!\rabbit - set RABBITMQ_EBIN_PATH= -) else ( - set RABBITMQ_BOOT_FILE=start_sasl - set RABBITMQ_EBIN_PATH=-pa "!RABBITMQ_EBIN_ROOT!" -) -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners [{\""!RABBITMQ_NODE_IP_ADDRESS!"\","!RABBITMQ_NODE_PORT!"}] - ) -) - -"!ERLANG_HOME!\bin\erl.exe" ^ -!RABBITMQ_EBIN_PATH! ^ --noinput ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --sname !RABBITMQ_NODENAME! ^ --s rabbit ^ -+W w ^ -+A30 ^ -+P 1048576 ^ --kernel inet_default_listen_options "[{nodelay, true}]" ^ --kernel inet_default_connect_options "[{nodelay, true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!RABBITMQ_LOG_BASE!/!RABBITMQ_NODENAME!.log"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!RABBITMQ_LOG_BASE!/!RABBITMQ_NODENAME!-sasl.log"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!CLUSTER_CONFIG! ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -endlocal -endlocal diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat deleted file mode 100644 index bd117b83..00000000 --- a/scripts/rabbitmq-service.bat +++ /dev/null @@ -1,259 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License at -REM http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -REM License for the specific language governing rights and limitations -REM under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developers of the Original Code are LShift Ltd, -REM Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -REM Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -REM are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -REM Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -REM Ltd. Portions created by Cohesive Financial Technologies LLC are -REM Copyright (C) 2007-2010 Cohesive Financial Technologies -REM LLC. Portions created by Rabbit Technologies Ltd are Copyright -REM (C) 2007-2010 Rabbit Technologies Ltd. -REM -REM All Rights Reserved. -REM -REM Contributor(s): ______________________________________. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TN0=%~n0 -set TDP0=%~dp0 -set P1=%1 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_SERVICENAME!"=="" ( - set RABBITMQ_SERVICENAME=RabbitMQ -) - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\!RABBITMQ_SERVICENAME! -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=0.0.0.0 - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if "!ERLANG_SERVICE_MANAGER_PATH!"=="" ( - if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B - ) - for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\erlsrv.exe" ( - set ERLANG_SERVICE_MANAGER_PATH=!ERLANG_HOME!\%%i\bin - ) -) - -set CONSOLE_FLAG= -set CONSOLE_LOG_VALID= -for %%i in (new reuse) do if "%%i" == "!RABBITMQ_CONSOLE_LOG!" set CONSOLE_LOG_VALID=TRUE -if "!CONSOLE_LOG_VALID!" == "TRUE" ( - set CONSOLE_FLAG=-debugtype !RABBITMQ_CONSOLE_LOG! -) - -rem *** End of configuration *** - -if not exist "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" ( - echo. - echo ********************************************** - echo ERLANG_SERVICE_MANAGER_PATH not set correctly. - echo ********************************************** - echo. - echo "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" not found - echo Please set ERLANG_SERVICE_MANAGER_PATH to the folder containing "erlsrv.exe". - echo. - exit /B 1 -) - -rem erlang prefers forwardslash as separator in paths -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based on size...) is left as an exercise for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!-sasl.log - -set LOGS_BACKUP=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!.log!BACKUP_EXTENSION! -set SASL_LOGS_BACKUP=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!-sasl.log!BACKUP_EXTENSION! - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS_BACKUP!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS_BACKUP!" -) - -rem End of log management - - -if "!RABBITMQ_CLUSTER_CONFIG_FILE!"=="" ( - set RABBITMQ_CLUSTER_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq_cluster.config -) -set CLUSTER_CONFIG= -if not exist "!RABBITMQ_CLUSTER_CONFIG_FILE!" GOTO L1 -set CLUSTER_CONFIG=-rabbit cluster_config \""!RABBITMQ_CLUSTER_CONFIG_FILE:\=/!"\" -:L1 - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - - -if "!P1!" == "install" goto INSTALL_SERVICE -for %%i in (start stop disable enable list remove) do if "%%i" == "!P1!" goto MODIFY_SERVICE - -echo. -echo ********************* -echo Service control usage -echo ********************* -echo. -echo !TN0! help - Display this help -echo !TN0! install - Install the !RABBITMQ_SERVICENAME! service -echo !TN0! remove - Remove the !RABBITMQ_SERVICENAME! service -echo. -echo The following actions can also be accomplished by using -echo Windows Services Management Console (services.msc): -echo. -echo !TN0! start - Start the !RABBITMQ_SERVICENAME! service -echo !TN0! stop - Stop the !RABBITMQ_SERVICENAME! service -echo !TN0! disable - Disable the !RABBITMQ_SERVICENAME! service -echo !TN0! enable - Enable the !RABBITMQ_SERVICENAME! service -echo. -exit /B - - -:INSTALL_SERVICE - -if not exist "!RABBITMQ_BASE!" ( - echo Creating base directory !RABBITMQ_BASE! & md "!RABBITMQ_BASE!" -) - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" list !RABBITMQ_SERVICENAME! 2>NUL 1>NUL -if errorlevel 1 ( - "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" add !RABBITMQ_SERVICENAME! -) else ( - echo !RABBITMQ_SERVICENAME! service is already present - only updating service parameters -) - -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -if exist "!RABBITMQ_EBIN_ROOT!\rabbit.boot" ( - echo Using Custom Boot File "!RABBITMQ_EBIN_ROOT!\rabbit.boot" - set RABBITMQ_BOOT_FILE=!RABBITMQ_EBIN_ROOT!\rabbit - set RABBITMQ_EBIN_PATH= -) else ( - set RABBITMQ_BOOT_FILE=start_sasl - set RABBITMQ_EBIN_PATH=-pa "!RABBITMQ_EBIN_ROOT!" -) -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners "[{\"!RABBITMQ_NODE_IP_ADDRESS!\", !RABBITMQ_NODE_PORT!}]" - ) -) - -set ERLANG_SERVICE_ARGUMENTS= ^ -!RABBITMQ_EBIN_PATH! ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --s rabbit ^ -+W w ^ -+A30 ^ --kernel inet_default_listen_options "[{nodelay,true}]" ^ --kernel inet_default_connect_options "[{nodelay,true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!RABBITMQ_LOG_BASE!/!RABBITMQ_NODENAME!.log"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!RABBITMQ_LOG_BASE!/!RABBITMQ_NODENAME!-sasl.log"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!CLUSTER_CONFIG! ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:\=\\! -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:"=\"! - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" set !RABBITMQ_SERVICENAME! ^ --machine "!ERLANG_SERVICE_MANAGER_PATH!\erl.exe" ^ --env ERL_CRASH_DUMP="!RABBITMQ_BASE_UNIX!/erl_crash.dump" ^ --workdir "!RABBITMQ_BASE!" ^ --stopaction "rabbit:stop_and_halt()." ^ --sname !RABBITMQ_NODENAME! ^ -!CONSOLE_FLAG! ^ --args "!ERLANG_SERVICE_ARGUMENTS!" > NUL -goto END - - -:MODIFY_SERVICE - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" !P1! !RABBITMQ_SERVICENAME! -goto END - - -:END - -endlocal -endlocal diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl deleted file mode 100755 index 92e5312b..00000000 --- a/scripts/rabbitmqctl +++ /dev/null @@ -1,50 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License at -## http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -## License for the specific language governing rights and limitations -## under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developers of the Original Code are LShift Ltd, -## Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -## Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -## are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -## Technologies LLC, and Rabbit Technologies Ltd. -## -## Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -## Ltd. Portions created by Cohesive Financial Technologies LLC are -## Copyright (C) 2007-2010 Cohesive Financial Technologies -## LLC. Portions created by Rabbit Technologies Ltd are Copyright -## (C) 2007-2010 Rabbit Technologies Ltd. -## -## All Rights Reserved. -## -## Contributor(s): ______________________________________. -## - -[ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname -s` -NODENAME=rabbit@${HOSTNAME%%.*} - -. `dirname $0`/rabbitmq-env - -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} - -exec erl \ - -pa "${RABBITMQ_HOME}/ebin" \ - -noinput \ - -hidden \ - ${RABBITMQ_CTL_ERL_ARGS} \ - -sname rabbitmqctl$$ \ - -s rabbit_control \ - -nodename $RABBITMQ_NODENAME \ - -extra "$@" - diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat deleted file mode 100644 index 563b9e58..00000000 --- a/scripts/rabbitmqctl.bat +++ /dev/null @@ -1,64 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License at -REM http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -REM License for the specific language governing rights and limitations -REM under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developers of the Original Code are LShift Ltd, -REM Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -REM Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -REM are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -REM Technologies LLC, and Rabbit Technologies Ltd. -REM -REM Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -REM Ltd. Portions created by Cohesive Financial Technologies LLC are -REM Copyright (C) 2007-2010 Cohesive Financial Technologies -REM LLC. Portions created by Rabbit Technologies Ltd are Copyright -REM (C) 2007-2010 Rabbit Technologies Ltd. -REM -REM All Rights Reserved. -REM -REM Contributor(s): ______________________________________. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! - -endlocal -endlocal diff --git a/src/delegate.erl b/src/delegate.erl deleted file mode 100644 index 8af28127..00000000 --- a/src/delegate.erl +++ /dev/null @@ -1,211 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(delegate). - --define(DELEGATE_PROCESS_COUNT_MULTIPLIER, 2). - --behaviour(gen_server2). - --export([start_link/1, invoke_no_result/2, invoke/2, process_count/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()}). --spec(invoke_no_result/2 :: (pid() | [pid()], fun ((pid()) -> any())) -> 'ok'). --spec(invoke/2 :: (pid() | [pid()], fun ((pid()) -> A)) -> A). - --spec(process_count/0 :: () -> non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(Hash) -> - gen_server2:start_link({local, server(Hash)}, ?MODULE, [], []). - -invoke(Pid, Fun) when is_pid(Pid) -> - [Res] = invoke_per_node(split_delegate_per_node([Pid]), Fun), - case Res of - {ok, Result, _} -> - Result; - {error, {Class, Reason, StackTrace}, _} -> - erlang:raise(Class, Reason, StackTrace) - end; - -invoke(Pids, Fun) when is_list(Pids) -> - lists:foldl( - fun ({Status, Result, Pid}, {Good, Bad}) -> - case Status of - ok -> {[{Pid, Result}|Good], Bad}; - error -> {Good, [{Pid, Result}|Bad]} - end - end, - {[], []}, - invoke_per_node(split_delegate_per_node(Pids), Fun)). - -invoke_no_result(Pid, Fun) when is_pid(Pid) -> - invoke_no_result_per_node(split_delegate_per_node([Pid]), Fun), - ok; - -invoke_no_result(Pids, Fun) when is_list(Pids) -> - invoke_no_result_per_node(split_delegate_per_node(Pids), Fun), - ok. - -%%---------------------------------------------------------------------------- - -internal_call(Node, Thunk) when is_atom(Node) -> - gen_server2:call({remote_server(Node), Node}, {thunk, Thunk}, infinity). - -internal_cast(Node, Thunk) when is_atom(Node) -> - gen_server2:cast({remote_server(Node), Node}, {thunk, Thunk}). - -split_delegate_per_node(Pids) -> - LocalNode = node(), - {Local, Remote} = - lists:foldl( - fun (Pid, {L, D}) -> - Node = node(Pid), - case Node of - LocalNode -> {[Pid|L], D}; - _ -> {L, orddict:append(Node, Pid, D)} - end - end, - {[], orddict:new()}, Pids), - {Local, orddict:to_list(Remote)}. - -invoke_per_node(NodePids, Fun) -> - lists:append(delegate_per_node(NodePids, Fun, fun internal_call/2)). - -invoke_no_result_per_node(NodePids, Fun) -> - delegate_per_node(NodePids, Fun, fun internal_cast/2), - ok. - -delegate_per_node({LocalPids, NodePids}, Fun, DelegateFun) -> - %% In the case where DelegateFun is internal_cast, the safe_invoke - %% is not actually async! However, in practice Fun will always be - %% something that does a gen_server:cast or similar, so I don't - %% think it's a problem unless someone misuses this - %% function. Making this *actually* async would be painful as we - %% can't spawn at this point or we break effect ordering. - [safe_invoke(LocalPids, Fun)| - delegate_per_remote_node(NodePids, Fun, DelegateFun)]. - -delegate_per_remote_node(NodePids, Fun, DelegateFun) -> - Self = self(), - %% Note that this is unsafe if the Fun requires reentrancy to the - %% local_server. I.e. if self() == local_server(Node) then we'll - %% block forever. - [gen_server2:cast( - local_server(Node), - {thunk, fun () -> - Self ! {result, - DelegateFun( - Node, fun () -> safe_invoke(Pids, Fun) end)} - end}) || {Node, Pids} <- NodePids], - [receive {result, Result} -> Result end || _ <- NodePids]. - -local_server(Node) -> - case get({delegate_local_server_name, Node}) of - undefined -> - Name = server(erlang:phash2({self(), Node}, process_count())), - put({delegate_local_server_name, Node}, Name), - Name; - Name -> Name - end. - -remote_server(Node) -> - case get({delegate_remote_server_name, Node}) of - undefined -> - case rpc:call(Node, delegate, process_count, []) of - {badrpc, _} -> - %% Have to return something, if we're just casting - %% then we don't want to blow up - server(1); - Count -> - Name = server(erlang:phash2({self(), Node}, Count)), - put({delegate_remote_server_name, Node}, Name), - Name - end; - Name -> Name - end. - -server(Hash) -> - list_to_atom("delegate_process_" ++ integer_to_list(Hash)). - -safe_invoke(Pids, Fun) when is_list(Pids) -> - [safe_invoke(Pid, Fun) || Pid <- Pids]; -safe_invoke(Pid, Fun) when is_pid(Pid) -> - try - {ok, Fun(Pid), Pid} - catch - Class:Reason -> - {error, {Class, Reason, erlang:get_stacktrace()}, Pid} - end. - -process_count() -> - ?DELEGATE_PROCESS_COUNT_MULTIPLIER * erlang:system_info(schedulers). - -%%-------------------------------------------------------------------- - -init([]) -> - {ok, no_state, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -%% We don't need a catch here; we always go via safe_invoke. A catch here would -%% be the wrong thing anyway since the Thunk can throw multiple errors. -handle_call({thunk, Thunk}, _From, State) -> - {reply, Thunk(), State, hibernate}. - -handle_cast({thunk, Thunk}, State) -> - Thunk(), - {noreply, State, hibernate}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl deleted file mode 100644 index 1c1d62a9..00000000 --- a/src/delegate_sup.erl +++ /dev/null @@ -1,63 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(delegate_sup). - --behaviour(supervisor). - --export([start_link/0]). - --export([init/1]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -%%---------------------------------------------------------------------------- - -init(_Args) -> - {ok, {{one_for_one, 10, 10}, - [{Hash, {delegate, start_link, [Hash]}, - transient, 16#ffffffff, worker, [delegate]} || - Hash <- lists:seq(0, delegate:process_count() - 1)]}}. - -%%---------------------------------------------------------------------------- diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl deleted file mode 100644 index 0f648dcd..00000000 --- a/src/file_handle_cache.erl +++ /dev/null @@ -1,862 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(file_handle_cache). - -%% A File Handle Cache -%% -%% This extends a subset of the functionality of the Erlang file -%% module. -%% -%% Some constraints -%% 1) This supports one writer, multiple readers per file. Nothing -%% else. -%% 2) Do not open the same file from different processes. Bad things -%% may happen. -%% 3) Writes are all appends. You cannot write to the middle of a -%% file, although you can truncate and then append if you want. -%% 4) Although there is a write buffer, there is no read buffer. Feel -%% free to use the read_ahead mode, but beware of the interaction -%% between that buffer and the write buffer. -%% -%% Some benefits -%% 1) You do not have to remember to call sync before close -%% 2) Buffering is much more flexible than with plain file module, and -%% you can control when the buffer gets flushed out. This means that -%% you can rely on reads-after-writes working, without having to call -%% the expensive sync. -%% 3) Unnecessary calls to position and sync get optimised out. -%% 4) You can find out what your 'real' offset is, and what your -%% 'virtual' offset is (i.e. where the hdl really is, and where it -%% would be after the write buffer is written out). -%% 5) You can find out what the offset was when you last sync'd. -%% -%% There is also a server component which serves to limit the number -%% of open file handles in a "soft" way - the server will never -%% prevent a client from opening a handle, but may immediately tell it -%% to close the handle. Thus you can set the limit to zero and it will -%% still all work correctly, it is just that effectively no caching -%% will take place. The operation of limiting is as follows: -%% -%% On open and close, the client sends messages to the server -%% informing it of opens and closes. This allows the server to keep -%% track of the number of open handles. The client also keeps a -%% gb_tree which is updated on every use of a file handle, mapping the -%% time at which the file handle was last used (timestamp) to the -%% handle. Thus the smallest key in this tree maps to the file handle -%% that has not been used for the longest amount of time. This -%% smallest key is included in the messages to the server. As such, -%% the server keeps track of when the least recently used file handle -%% was used *at the point of the most recent open or close* by each -%% client. -%% -%% Note that this data can go very out of date, by the client using -%% the least recently used handle. -%% -%% When the limit is reached, the server calculates the average age of -%% the last reported least recently used file handle of all the -%% clients. It then tells all the clients to close any handles not -%% used for longer than this average, by invoking the callback the -%% client registered. The client should receive this message and pass -%% it into set_maximum_since_use/1. However, it is highly possible -%% this age will be greater than the ages of all the handles the -%% client knows of because the client has used its file handles in the -%% mean time. Thus at this point the client reports to the server the -%% current timestamp at which its least recently used file handle was -%% last used. The server will check two seconds later that either it -%% is back under the limit, in which case all is well again, or if -%% not, it will calculate a new average age. Its data will be much -%% more recent now, and so it is very likely that when this is -%% communicated to the clients, the clients will close file handles. -%% -%% The advantage of this scheme is that there is only communication -%% from the client to the server on open, close, and when in the -%% process of trying to reduce file handle usage. There is no -%% communication from the client to the server on normal file handle -%% operations. This scheme forms a feed-back loop - the server does -%% not care which file handles are closed, just that some are, and it -%% checks this repeatedly when over the limit. Given the guarantees of -%% now(), even if there is just one file handle open, a limit of 1, -%% and one client, it is certain that when the client calculates the -%% age of the handle, it will be greater than when the server -%% calculated it, hence it should be closed. -%% -%% Handles which are closed as a result of the server are put into a -%% "soft-closed" state in which the handle is closed (data flushed out -%% and sync'd first) but the state is maintained. The handle will be -%% fully reopened again as soon as needed, thus users of this library -%% do not need to worry about their handles being closed by the server -%% - reopening them when necessary is handled transparently. -%% -%% The server also supports obtain and release_on_death. obtain/0 -%% blocks until a file descriptor is available. release_on_death/1 -%% takes a pid and monitors the pid, reducing the count by 1 when the -%% pid dies. Thus the assumption is that obtain/0 is called first, and -%% when that returns, release_on_death/1 is called with the pid who -%% "owns" the file descriptor. This is, for example, used to track the -%% use of file descriptors through network sockets. - --behaviour(gen_server). - --export([register_callback/3]). --export([open/3, close/1, read/2, append/2, sync/1, position/2, truncate/1, - last_sync_offset/1, current_virtual_offset/1, current_raw_offset/1, - flush/1, copy/3, set_maximum_since_use/1, delete/1, clear/1]). --export([release_on_death/1, obtain/0]). - --export([start_link/0, init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). --define(RESERVED_FOR_OTHERS, 100). --define(FILE_HANDLES_LIMIT_WINDOWS, 10000000). --define(FILE_HANDLES_LIMIT_OTHER, 1024). --define(FILE_HANDLES_CHECK_INTERVAL, 2000). - -%%---------------------------------------------------------------------------- - --record(file, - { reader_count, - has_writer - }). - --record(handle, - { hdl, - offset, - trusted_offset, - is_dirty, - write_buffer_size, - write_buffer_size_limit, - write_buffer, - at_eof, - path, - mode, - options, - is_write, - is_read, - last_used_at - }). - --record(fhc_state, - { elders, - limit, - count, - obtains, - callbacks, - client_mrefs, - timer_ref - }). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(ref() :: any()). --type(error() :: {'error', any()}). --type(ok_or_error() :: ('ok' | error())). --type(val_or_error(T) :: ({'ok', T} | error())). --type(position() :: ('bof' | 'eof' | non_neg_integer() | - {('bof' |'eof'), non_neg_integer()} | {'cur', integer()})). --type(offset() :: non_neg_integer()). - --spec(register_callback/3 :: (atom(), atom(), [any()]) -> 'ok'). --spec(open/3 :: - (string(), [any()], - [{'write_buffer', (non_neg_integer() | 'infinity' | 'unbuffered')}]) -> - val_or_error(ref())). --spec(close/1 :: (ref()) -> ok_or_error()). --spec(read/2 :: (ref(), non_neg_integer()) -> - val_or_error([char()] | binary()) | 'eof'). --spec(append/2 :: (ref(), iodata()) -> ok_or_error()). --spec(sync/1 :: (ref()) -> ok_or_error()). --spec(position/2 :: (ref(), position()) -> val_or_error(offset())). --spec(truncate/1 :: (ref()) -> ok_or_error()). --spec(last_sync_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_virtual_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_raw_offset/1 :: (ref()) -> val_or_error(offset())). --spec(flush/1 :: (ref()) -> ok_or_error()). --spec(copy/3 :: (ref(), ref(), non_neg_integer()) -> - val_or_error(non_neg_integer())). --spec(set_maximum_since_use/1 :: (non_neg_integer()) -> 'ok'). --spec(delete/1 :: (ref()) -> ok_or_error()). --spec(clear/1 :: (ref()) -> ok_or_error()). --spec(release_on_death/1 :: (pid()) -> 'ok'). --spec(obtain/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], [{timeout, infinity}]). - -register_callback(M, F, A) - when is_atom(M) andalso is_atom(F) andalso is_list(A) -> - gen_server:cast(?SERVER, {register_callback, self(), {M, F, A}}). - -open(Path, Mode, Options) -> - Path1 = filename:absname(Path), - File1 = #file { reader_count = RCount, has_writer = HasWriter } = - case get({Path1, fhc_file}) of - File = #file {} -> File; - undefined -> #file { reader_count = 0, - has_writer = false } - end, - Mode1 = append_to_write(Mode), - IsWriter = is_writer(Mode1), - case IsWriter andalso HasWriter of - true -> {error, writer_exists}; - false -> Ref = make_ref(), - case open1(Path1, Mode1, Options, Ref, bof, new) of - {ok, _Handle} -> - RCount1 = case is_reader(Mode1) of - true -> RCount + 1; - false -> RCount - end, - HasWriter1 = HasWriter orelse IsWriter, - put({Path1, fhc_file}, - File1 #file { reader_count = RCount1, - has_writer = HasWriter1 }), - {ok, Ref}; - Error -> - Error - end - end. - -close(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> ok; - Handle -> case hard_close(Handle) of - ok -> ok; - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -read(Ref, Count) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_read = false }]) -> - {error, not_open_for_reading}; - ([Handle = #handle { hdl = Hdl, offset = Offset }]) -> - case file:read(Hdl, Count) of - {ok, Data} = Obj -> Offset1 = Offset + iolist_size(Data), - {Obj, - [Handle #handle { offset = Offset1 }]}; - eof -> {eof, [Handle #handle { at_eof = true }]}; - Error -> {Error, [Handle]} - end - end). - -append(Ref, Data) -> - with_handles( - [Ref], - fun ([#handle { is_write = false }]) -> - {error, not_open_for_writing}; - ([Handle]) -> - case maybe_seek(eof, Handle) of - {{ok, _Offset}, #handle { hdl = Hdl, offset = Offset, - write_buffer_size_limit = 0, - at_eof = true } = Handle1} -> - Offset1 = Offset + iolist_size(Data), - {file:write(Hdl, Data), - [Handle1 #handle { is_dirty = true, offset = Offset1 }]}; - {{ok, _Offset}, #handle { write_buffer = WriteBuffer, - write_buffer_size = Size, - write_buffer_size_limit = Limit, - at_eof = true } = Handle1} -> - WriteBuffer1 = [Data | WriteBuffer], - Size1 = Size + iolist_size(Data), - Handle2 = Handle1 #handle { write_buffer = WriteBuffer1, - write_buffer_size = Size1 }, - case Limit /= infinity andalso Size1 > Limit of - true -> {Result, Handle3} = write_buffer(Handle2), - {Result, [Handle3]}; - false -> {ok, [Handle2]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -sync(Ref) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_dirty = false, write_buffer = [] }]) -> - ok; - ([Handle = #handle { hdl = Hdl, offset = Offset, - is_dirty = true, write_buffer = [] }]) -> - case file:sync(Hdl) of - ok -> {ok, [Handle #handle { trusted_offset = Offset, - is_dirty = false }]}; - Error -> {Error, [Handle]} - end - end). - -position(Ref, NewOffset) -> - with_flushed_handles( - [Ref], - fun ([Handle]) -> {Result, Handle1} = maybe_seek(NewOffset, Handle), - {Result, [Handle1]} - end). - -truncate(Ref) -> - with_flushed_handles( - [Ref], - fun ([Handle1 = #handle { hdl = Hdl, offset = Offset, - trusted_offset = TOffset }]) -> - case file:truncate(Hdl) of - ok -> TOffset1 = lists:min([Offset, TOffset]), - {ok, [Handle1 #handle { trusted_offset = TOffset1, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end - end). - -last_sync_offset(Ref) -> - with_handles([Ref], fun ([#handle { trusted_offset = TOffset }]) -> - {ok, TOffset} - end). - -current_virtual_offset(Ref) -> - with_handles([Ref], fun ([#handle { at_eof = true, is_write = true, - offset = Offset, - write_buffer_size = Size }]) -> - {ok, Offset + Size}; - ([#handle { offset = Offset }]) -> - {ok, Offset} - end). - -current_raw_offset(Ref) -> - with_handles([Ref], fun ([Handle]) -> {ok, Handle #handle.offset} end). - -flush(Ref) -> - with_flushed_handles([Ref], fun ([Handle]) -> {ok, [Handle]} end). - -copy(Src, Dest, Count) -> - with_flushed_handles( - [Src, Dest], - fun ([SHandle = #handle { is_read = true, hdl = SHdl, offset = SOffset }, - DHandle = #handle { is_write = true, hdl = DHdl, offset = DOffset }] - ) -> - case file:copy(SHdl, DHdl, Count) of - {ok, Count1} = Result1 -> - {Result1, - [SHandle #handle { offset = SOffset + Count1 }, - DHandle #handle { offset = DOffset + Count1 }]}; - Error -> - {Error, [SHandle, DHandle]} - end; - (_Handles) -> - {error, incorrect_handle_modes} - end). - -delete(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> - ok; - Handle = #handle { path = Path } -> - case hard_close(Handle #handle { is_dirty = false, - write_buffer = [] }) of - ok -> file:delete(Path); - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -clear(Ref) -> - with_handles( - [Ref], - fun ([#handle { at_eof = true, write_buffer_size = 0, offset = 0 }]) -> - ok; - ([Handle]) -> - case maybe_seek(bof, Handle #handle { write_buffer = [], - write_buffer_size = 0 }) of - {{ok, 0}, Handle1 = #handle { hdl = Hdl }} -> - case file:truncate(Hdl) of - ok -> {ok, [Handle1 #handle {trusted_offset = 0, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -set_maximum_since_use(MaximumAge) -> - Now = now(), - case lists:foldl( - fun ({{Ref, fhc_handle}, - Handle = #handle { hdl = Hdl, last_used_at = Then }}, Rep) -> - Age = timer:now_diff(Now, Then), - case Hdl /= closed andalso Age >= MaximumAge of - true -> {Res, Handle1} = soft_close(Handle), - case Res of - ok -> put({Ref, fhc_handle}, Handle1), - false; - _ -> put_handle(Ref, Handle1), - Rep - end; - false -> Rep - end; - (_KeyValuePair, Rep) -> - Rep - end, true, get()) of - true -> age_tree_change(), ok; - false -> ok - end. - -release_on_death(Pid) when is_pid(Pid) -> - gen_server:cast(?SERVER, {release_on_death, Pid}). - -obtain() -> - gen_server:call(?SERVER, obtain, infinity). - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -is_reader(Mode) -> lists:member(read, Mode). - -is_writer(Mode) -> lists:member(write, Mode). - -append_to_write(Mode) -> - case lists:member(append, Mode) of - true -> [write | Mode -- [append, write]]; - false -> Mode - end. - -with_handles(Refs, Fun) -> - ResHandles = lists:foldl( - fun (Ref, {ok, HandlesAcc}) -> - case get_or_reopen(Ref) of - {ok, Handle} -> {ok, [Handle | HandlesAcc]}; - Error -> Error - end; - (_Ref, Error) -> - Error - end, {ok, []}, Refs), - case ResHandles of - {ok, Handles} -> - case Fun(lists:reverse(Handles)) of - {Result, Handles1} when is_list(Handles1) -> - lists:zipwith(fun put_handle/2, Refs, Handles1), - Result; - Result -> - Result - end; - Error -> - Error - end. - -with_flushed_handles(Refs, Fun) -> - with_handles( - Refs, - fun (Handles) -> - case lists:foldl( - fun (Handle, {ok, HandlesAcc}) -> - {Res, Handle1} = write_buffer(Handle), - {Res, [Handle1 | HandlesAcc]}; - (Handle, {Error, HandlesAcc}) -> - {Error, [Handle | HandlesAcc]} - end, {ok, []}, Handles) of - {ok, Handles1} -> - Fun(lists:reverse(Handles1)); - {Error, Handles1} -> - {Error, lists:reverse(Handles1)} - end - end). - -get_or_reopen(Ref) -> - case get({Ref, fhc_handle}) of - undefined -> - {error, not_open, Ref}; - #handle { hdl = closed, offset = Offset, - path = Path, mode = Mode, options = Options } -> - open1(Path, Mode, Options, Ref, Offset, reopen); - Handle -> - {ok, Handle} - end. - -put_handle(Ref, Handle = #handle { last_used_at = Then }) -> - Now = now(), - age_tree_update(Then, Now, Ref), - put({Ref, fhc_handle}, Handle #handle { last_used_at = Now }). - -with_age_tree(Fun) -> - put(fhc_age_tree, Fun(case get(fhc_age_tree) of - undefined -> gb_trees:empty(); - AgeTree -> AgeTree - end)). - -age_tree_insert(Now, Ref) -> - with_age_tree( - fun (Tree) -> - Tree1 = gb_trees:insert(Now, Ref, Tree), - {Oldest, _Ref} = gb_trees:smallest(Tree1), - gen_server:cast(?SERVER, {open, self(), Oldest}), - Tree1 - end). - -age_tree_update(Then, Now, Ref) -> - with_age_tree( - fun (Tree) -> - gb_trees:insert(Now, Ref, gb_trees:delete_any(Then, Tree)) - end). - -age_tree_delete(Then) -> - with_age_tree( - fun (Tree) -> - Tree1 = gb_trees:delete_any(Then, Tree), - Oldest = case gb_trees:is_empty(Tree1) of - true -> - undefined; - false -> - {Oldest1, _Ref} = gb_trees:smallest(Tree1), - Oldest1 - end, - gen_server:cast(?SERVER, {close, self(), Oldest}), - Tree1 - end). - -age_tree_change() -> - with_age_tree( - fun (Tree) -> - case gb_trees:is_empty(Tree) of - true -> Tree; - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - gen_server:cast(?SERVER, {update, self(), Oldest}) - end, - Tree - end). - -open1(Path, Mode, Options, Ref, Offset, NewOrReopen) -> - Mode1 = case NewOrReopen of - new -> Mode; - reopen -> [read | Mode] - end, - case file:open(Path, Mode1) of - {ok, Hdl} -> - WriteBufferSize = - case proplists:get_value(write_buffer, Options, unbuffered) of - unbuffered -> 0; - infinity -> infinity; - N when is_integer(N) -> N - end, - Now = now(), - Handle = #handle { hdl = Hdl, - offset = 0, - trusted_offset = 0, - is_dirty = false, - write_buffer_size = 0, - write_buffer_size_limit = WriteBufferSize, - write_buffer = [], - at_eof = false, - path = Path, - mode = Mode, - options = Options, - is_write = is_writer(Mode), - is_read = is_reader(Mode), - last_used_at = Now }, - {{ok, Offset1}, Handle1} = maybe_seek(Offset, Handle), - Handle2 = Handle1 #handle { trusted_offset = Offset1 }, - put({Ref, fhc_handle}, Handle2), - age_tree_insert(Now, Ref), - {ok, Handle2}; - {error, Reason} -> - {error, Reason} - end. - -soft_close(Handle = #handle { hdl = closed }) -> - {ok, Handle}; -soft_close(Handle) -> - case write_buffer(Handle) of - {ok, #handle { hdl = Hdl, offset = Offset, is_dirty = IsDirty, - last_used_at = Then } = Handle1 } -> - ok = case IsDirty of - true -> file:sync(Hdl); - false -> ok - end, - ok = file:close(Hdl), - age_tree_delete(Then), - {ok, Handle1 #handle { hdl = closed, trusted_offset = Offset, - is_dirty = false }}; - {_Error, _Handle} = Result -> - Result - end. - -hard_close(Handle) -> - case soft_close(Handle) of - {ok, #handle { path = Path, - is_read = IsReader, is_write = IsWriter }} -> - #file { reader_count = RCount, has_writer = HasWriter } = File = - get({Path, fhc_file}), - RCount1 = case IsReader of - true -> RCount - 1; - false -> RCount - end, - HasWriter1 = HasWriter andalso not IsWriter, - case RCount1 =:= 0 andalso not HasWriter1 of - true -> erase({Path, fhc_file}); - false -> put({Path, fhc_file}, - File #file { reader_count = RCount1, - has_writer = HasWriter1 }) - end, - ok; - {_Error, _Handle} = Result -> - Result - end. - -maybe_seek(NewOffset, Handle = #handle { hdl = Hdl, offset = Offset, - at_eof = AtEoF }) -> - {AtEoF1, NeedsSeek} = needs_seek(AtEoF, Offset, NewOffset), - case (case NeedsSeek of - true -> file:position(Hdl, NewOffset); - false -> {ok, Offset} - end) of - {ok, Offset1} = Result -> - {Result, Handle #handle { offset = Offset1, at_eof = AtEoF1 }}; - {error, _} = Error -> - {Error, Handle} - end. - -needs_seek( AtEoF, _CurOffset, cur ) -> {AtEoF, false}; -needs_seek( AtEoF, _CurOffset, {cur, 0}) -> {AtEoF, false}; -needs_seek( true, _CurOffset, eof ) -> {true , false}; -needs_seek( true, _CurOffset, {eof, 0}) -> {true , false}; -needs_seek( false, _CurOffset, eof ) -> {true , true }; -needs_seek( false, _CurOffset, {eof, 0}) -> {true , true }; -needs_seek( AtEoF, 0, bof ) -> {AtEoF, false}; -needs_seek( AtEoF, 0, {bof, 0}) -> {AtEoF, false}; -needs_seek( AtEoF, CurOffset, CurOffset) -> {AtEoF, false}; -needs_seek( true, CurOffset, {bof, DesiredOffset}) - when DesiredOffset >= CurOffset -> - {true, true}; -needs_seek( true, _CurOffset, {cur, DesiredOffset}) - when DesiredOffset > 0 -> - {true, true}; -needs_seek( true, CurOffset, DesiredOffset) %% same as {bof, DO} - when is_integer(DesiredOffset) andalso DesiredOffset >= CurOffset -> - {true, true}; -%% because we can't really track size, we could well end up at EoF and not know -needs_seek(_AtEoF, _CurOffset, _DesiredOffset) -> - {false, true}. - -write_buffer(Handle = #handle { write_buffer = [] }) -> - {ok, Handle}; -write_buffer(Handle = #handle { hdl = Hdl, offset = Offset, - write_buffer = WriteBuffer, - write_buffer_size = DataSize, - at_eof = true }) -> - case file:write(Hdl, lists:reverse(WriteBuffer)) of - ok -> - Offset1 = Offset + DataSize, - {ok, Handle #handle { offset = Offset1, is_dirty = true, - write_buffer = [], write_buffer_size = 0 }}; - {error, _} = Error -> - {Error, Handle} - end. - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - Limit = case application:get_env(file_handles_high_watermark) of - {ok, Watermark} when (is_integer(Watermark) andalso - Watermark > 0) -> - Watermark; - _ -> - ulimit() - end, - error_logger:info_msg("Limiting to approx ~p file handles~n", [Limit]), - {ok, #fhc_state { elders = dict:new(), limit = Limit, count = 0, - obtains = [], callbacks = dict:new(), - client_mrefs = dict:new(), timer_ref = undefined }}. - -handle_call(obtain, From, State = #fhc_state { count = Count }) -> - State1 = #fhc_state { count = Count1, limit = Limit, obtains = Obtains } = - maybe_reduce(State #fhc_state { count = Count + 1 }), - case Limit /= infinity andalso Count1 >= Limit of - true -> {noreply, State1 #fhc_state { obtains = [From | Obtains], - count = Count1 - 1 }}; - false -> {reply, ok, State1} - end. - -handle_cast({register_callback, Pid, MFA}, - State = #fhc_state { callbacks = Callbacks }) -> - {noreply, ensure_mref( - Pid, State #fhc_state { - callbacks = dict:store(Pid, MFA, Callbacks) })}; - -handle_cast({open, Pid, EldestUnusedSince}, State = - #fhc_state { elders = Elders, count = Count }) -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - {noreply, maybe_reduce( - ensure_mref(Pid, State #fhc_state { elders = Elders1, - count = Count + 1 }))}; - -handle_cast({update, Pid, EldestUnusedSince}, State = - #fhc_state { elders = Elders }) -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - %% don't call maybe_reduce from here otherwise we can create a - %% storm of messages - {noreply, ensure_mref(Pid, State #fhc_state { elders = Elders1 })}; - -handle_cast({close, Pid, EldestUnusedSince}, State = - #fhc_state { elders = Elders, count = Count }) -> - Elders1 = case EldestUnusedSince of - undefined -> dict:erase(Pid, Elders); - _ -> dict:store(Pid, EldestUnusedSince, Elders) - end, - {noreply, process_obtains( - ensure_mref(Pid, State #fhc_state { elders = Elders1, - count = Count - 1 }))}; - -handle_cast(check_counts, State) -> - {noreply, maybe_reduce(State #fhc_state { timer_ref = undefined })}; - -handle_cast({release_on_death, Pid}, State) -> - _MRef = erlang:monitor(process, Pid), - {noreply, State}. - -handle_info({'DOWN', MRef, process, Pid, _Reason}, State = - #fhc_state { count = Count, callbacks = Callbacks, - client_mrefs = ClientMRefs, elders = Elders }) -> - {noreply, process_obtains( - case dict:find(Pid, ClientMRefs) of - {ok, MRef} -> State #fhc_state { - elders = dict:erase(Pid, Elders), - client_mrefs = dict:erase(Pid, ClientMRefs), - callbacks = dict:erase(Pid, Callbacks) }; - _ -> State #fhc_state { count = Count - 1 } - end)}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% server helpers -%%---------------------------------------------------------------------------- - -process_obtains(State = #fhc_state { obtains = [] }) -> - State; -process_obtains(State = #fhc_state { limit = Limit, count = Count }) - when Limit /= infinity andalso Count >= Limit -> - State; -process_obtains(State = #fhc_state { limit = Limit, count = Count, - obtains = Obtains }) -> - ObtainsLen = length(Obtains), - ObtainableLen = lists:min([ObtainsLen, Limit - Count]), - Take = ObtainsLen - ObtainableLen, - {ObtainsNew, ObtainableRev} = lists:split(Take, Obtains), - [gen_server:reply(From, ok) || From <- ObtainableRev], - State #fhc_state { count = Count + ObtainableLen, obtains = ObtainsNew }. - -maybe_reduce(State = #fhc_state { limit = Limit, count = Count, elders = Elders, - callbacks = Callbacks, timer_ref = TRef }) - when Limit /= infinity andalso Count >= Limit -> - Now = now(), - {Pids, Sum, ClientCount} = - dict:fold(fun (_Pid, undefined, Accs) -> - Accs; - (Pid, Eldest, {PidsAcc, SumAcc, CountAcc}) -> - {[Pid|PidsAcc], SumAcc + timer:now_diff(Now, Eldest), - CountAcc + 1} - end, {[], 0, 0}, Elders), - case Pids of - [] -> ok; - _ -> AverageAge = Sum / ClientCount, - lists:foreach( - fun (Pid) -> - case dict:find(Pid, Callbacks) of - error -> ok; - {ok, {M, F, A}} -> apply(M, F, A ++ [AverageAge]) - end - end, Pids) - end, - case TRef of - undefined -> {ok, TRef1} = timer:apply_after( - ?FILE_HANDLES_CHECK_INTERVAL, - gen_server, cast, [?SERVER, check_counts]), - State #fhc_state { timer_ref = TRef1 }; - _ -> State - end; -maybe_reduce(State) -> - State. - -%% Googling around suggests that Windows has a limit somewhere around -%% 16M, eg -%% http://blogs.technet.com/markrussinovich/archive/2009/09/29/3283844.aspx -%% For everything else, assume ulimit exists. Further googling -%% suggests that BSDs (incl OS X), solaris and linux all agree that -%% ulimit -n is file handles -ulimit() -> - case os:type() of - {win32, _OsName} -> - ?FILE_HANDLES_LIMIT_WINDOWS; - {unix, _OsName} -> - %% Under Linux, Solaris and FreeBSD, ulimit is a shell - %% builtin, not a command. In OS X, it's a command. - %% Fortunately, os:cmd invokes the cmd in a shell env, so - %% we're safe in all cases. - case os:cmd("ulimit -n") of - "unlimited" -> - infinity; - String = [C|_] when $0 =< C andalso C =< $9 -> - Num = list_to_integer( - lists:takewhile( - fun (D) -> $0 =< D andalso D =< $9 end, String)) - - ?RESERVED_FOR_OTHERS, - lists:max([1, Num]); - _ -> - %% probably a variant of - %% "/bin/sh: line 1: ulimit: command not found\n" - ?FILE_HANDLES_LIMIT_OTHER - ?RESERVED_FOR_OTHERS - end; - _ -> - ?FILE_HANDLES_LIMIT_OTHER - ?RESERVED_FOR_OTHERS - end. - -ensure_mref(Pid, State = #fhc_state { client_mrefs = ClientMRefs }) -> - case dict:find(Pid, ClientMRefs) of - {ok, _MRef} -> State; - error -> MRef = erlang:monitor(process, Pid), - State #fhc_state { - client_mrefs = dict:store(Pid, MRef, ClientMRefs) } - end. diff --git a/src/gatherer.erl b/src/gatherer.erl deleted file mode 100644 index 31dda16e..00000000 --- a/src/gatherer.erl +++ /dev/null @@ -1,145 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(gatherer). - --behaviour(gen_server2). - --export([start_link/0, stop/1, fork/1, finish/1, in/2, out/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(stop/1 :: (pid()) -> 'ok'). --spec(fork/1 :: (pid()) -> 'ok'). --spec(finish/1 :: (pid()) -> 'ok'). --spec(in/2 :: (pid(), any()) -> 'ok'). --spec(out/1 :: (pid()) -> {'value', any()} | 'empty'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - --record(gstate, { forks, values, blocked }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link(?MODULE, [], [{timeout, infinity}]). - -stop(Pid) -> - gen_server2:call(Pid, stop, infinity). - -fork(Pid) -> - gen_server2:call(Pid, fork, infinity). - -finish(Pid) -> - gen_server2:cast(Pid, finish). - -in(Pid, Value) -> - gen_server2:cast(Pid, {in, Value}). - -out(Pid) -> - gen_server2:call(Pid, out, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #gstate { forks = 0, values = queue:new(), blocked = queue:new() }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; - -handle_call(fork, _From, State = #gstate { forks = Forks }) -> - {reply, ok, State #gstate { forks = Forks + 1 }, hibernate}; - -handle_call(out, From, State = #gstate { forks = Forks, - values = Values, - blocked = Blocked }) -> - case queue:out(Values) of - {empty, _} -> - case Forks of - 0 -> {reply, empty, State, hibernate}; - _ -> {noreply, - State #gstate { blocked = queue:in(From, Blocked) }, - hibernate} - end; - {{value, _Value} = V, NewValues} -> - {reply, V, State #gstate { values = NewValues }, hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast(finish, State = #gstate { forks = Forks, blocked = Blocked }) -> - NewForks = Forks - 1, - NewBlocked = case NewForks of - 0 -> [gen_server2:reply(From, empty) || - From <- queue:to_list(Blocked)], - queue:new(); - _ -> Blocked - end, - {noreply, State #gstate { forks = NewForks, blocked = NewBlocked }, - hibernate}; - -handle_cast({in, Value}, State = #gstate { values = Values, - blocked = Blocked }) -> - {noreply, case queue:out(Blocked) of - {empty, _} -> - State #gstate { values = queue:in(Value, Values) }; - {{value, From}, NewBlocked} -> - gen_server2:reply(From, {value, Value}), - State #gstate { blocked = NewBlocked } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. diff --git a/src/intervals.erl b/src/intervals.erl deleted file mode 100644 index b5f09fc5..00000000 --- a/src/intervals.erl +++ /dev/null @@ -1,138 +0,0 @@ --module(intervals). --export([empty/0, full/0, half/1, single_int/1, single_string/1, range/2, ranges/1]). --export([is_element/2]). --export([invert/1, merge/3, intersection/2, union/2, symmetric_difference/2, difference/2]). --export([first_fit/2]). - -empty() -> - {false, []}. - -full() -> - {true, []}. - -half(N) -> - {false, [N]}. - -single_int(N) -> - {false, [N, N+1]}. - -single_string(N) -> - {false, [N, N ++ [0]]}. - -range(inf, inf) -> - full(); -range(inf, N) -> - {true, [N]}; -range(N, inf) -> - half(N); -range(N, M) - when N >= M -> - empty(); -range(N, M) -> - {false, [N, M]}. - -ranges([]) -> - empty(); -ranges([{N,M} | Ranges]) -> - {Initial, Acc0} = range(N,M), - {Initial, lists:reverse(ranges(lists:reverse(Acc0), Ranges))}. - -ranges(Acc, []) -> - Acc; -ranges(Acc, [{N, M} | Ranges]) - when is_number(N) andalso is_number(M) -> - if - N < M -> - ranges([M, N | Acc], Ranges); - true -> - ranges(Acc, Ranges) - end; -ranges(Acc, [{N, inf}]) -> - [N | Acc]. - -is_element(E, {Initial, Toggles}) -> - is_element(E, Initial, Toggles). - -is_element(_E, Current, []) -> - Current; -is_element(E, Current, [T | _]) - when E < T -> - Current; -is_element(E, Current, [_ | Rest]) -> - is_element(E, not Current, Rest). - -invert({true, Toggles}) -> - {false, Toggles}; -invert({false, Toggles}) -> - {true, Toggles}. - -merge(Op, {S1, T1}, {S2, T2}) -> - Initial = merge1(Op, S1, S2), - {Initial, merge(Op, Initial, [], S1, T1, S2, T2)}. - -intersection(A, B) -> merge(intersection, A, B). -union(A, B) -> merge(union, A, B). -symmetric_difference(A, B) -> merge(symmetric_difference, A, B). -difference(A, B) -> merge(difference, A, B). - -merge1(intersection, A, B) -> A and B; -merge1(union, A, B) -> A or B; -merge1(symmetric_difference, A, B) -> A xor B; -merge1(difference, A, B) -> A and not B. - -merge(Op, SA, TA, S1, [T1 | R1], S2, [T2 | R2]) - when T1 == T2 -> - update(Op, SA, TA, T1, not S1, R1, not S2, R2); -merge(Op, SA, TA, S1, [T1 | R1], S2, R2 = [T2 | _]) - when T1 < T2 -> - update(Op, SA, TA, T1, not S1, R1, S2, R2); -merge(Op, SA, TA, S1, R1, S2, [T2 | R2]) -> - update(Op, SA, TA, T2, S1, R1, not S2, R2); -merge(Op, _SA, TA, S1, [], _S2, R2) -> - finalise(TA, mergeempty(Op, left, S1, R2)); -merge(Op, _SA, TA, _S1, R1, S2, []) -> - finalise(TA, mergeempty(Op, right, S2, R1)). - -update(Op, SA, TA, T1, S1, R1, S2, R2) -> - Merged = merge1(Op, S1, S2), - if - SA == Merged -> - merge(Op, SA, TA, S1, R1, S2, R2); - true -> - merge(Op, Merged, [T1 | TA], S1, R1, S2, R2) - end. - -finalise(TA, Tail) -> - lists:reverse(TA, Tail). - -mergeempty(intersection, _LeftOrRight, true, TailT) -> - TailT; -mergeempty(intersection, _LeftOrRight, false, _TailT) -> - []; -mergeempty(union, _LeftOrRight, true, _TailT) -> - []; -mergeempty(union, _LeftOrRight, false, TailT) -> - TailT; -mergeempty(symmetric_difference, _LeftOrRight, _EmptyS, TailT) -> - TailT; -mergeempty(difference, left, true, TailT) -> - TailT; -mergeempty(difference, right, false, TailT) -> - TailT; -mergeempty(difference, _LeftOrRight, _EmptyS, _TailT) -> - []. - -first_fit(Request, {false, Toggles}) -> - first_fit1(Request, Toggles). - -first_fit1(_Request, []) -> - none; -first_fit1(_Request, [N]) -> - {ok, N}; -first_fit1(inf, [_N, _M | Rest]) -> - first_fit1(inf, Rest); -first_fit1(Request, [N, M | _Rest]) - when M - N >= Request -> - {ok, N}; -first_fit1(Request, [_N, _M | Rest]) -> - first_fit1(Request, Rest). diff --git a/src/pg_local.erl b/src/pg_local.erl deleted file mode 100644 index 1501331d..00000000 --- a/src/pg_local.erl +++ /dev/null @@ -1,213 +0,0 @@ -%% This file is a copy of pg2.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) Process groups are node-local only. -%% -%% 2) Groups are created/deleted implicitly. -%% -%% 3) 'join' and 'leave' are asynchronous. -%% -%% 4) the type specs of the exported non-callback functions have been -%% extracted into a separate, guarded section, and rewritten in -%% old-style spec syntax, for better compatibility with older -%% versions of Erlang/OTP. The remaining type specs have been -%% removed. - -%% All modifications are (C) 2010 LShift Ltd. - -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(pg_local). - --export([join/2, leave/2, get_members/1]). --export([sync/0]). %% intended for testing only; not part of official API --export([start/0,start_link/0,init/1,handle_call/3,handle_cast/2,handle_info/2, - terminate/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(name() :: term()). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', term()}). --spec(start/0 :: () -> {'ok', pid()} | {'error', term()}). --spec(join/2 :: (name(), pid()) -> 'ok'). --spec(leave/2 :: (name(), pid()) -> 'ok'). --spec(get_members/1 :: (name()) -> [pid()]). - --spec(sync/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%%% As of R13B03 monitors are used instead of links. - -%%% -%%% Exported functions -%%% - -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). - -start() -> - ensure_started(). - -join(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {join, Name, Pid}). - -leave(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {leave, Name, Pid}). - -get_members(Name) -> - ensure_started(), - group_members(Name). - -sync() -> - ensure_started(), - gen_server:call(?MODULE, sync). - -%%% -%%% Callback functions from gen_server -%%% - --record(state, {}). - -init([]) -> - pg_local_table = ets:new(pg_local_table, [ordered_set, protected, named_table]), - {ok, #state{}}. - -handle_call(sync, _From, S) -> - {reply, ok, S}; - -handle_call(Request, From, S) -> - error_logger:warning_msg("The pg_local server received an unexpected message:\n" - "handle_call(~p, ~p, _)\n", - [Request, From]), - {noreply, S}. - -handle_cast({join, Name, Pid}, S) -> - join_group(Name, Pid), - {noreply, S}; -handle_cast({leave, Name, Pid}, S) -> - leave_group(Name, Pid), - {noreply, S}; -handle_cast(_, S) -> - {noreply, S}. - -handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S) -> - member_died(MonitorRef), - {noreply, S}; -handle_info(_, S) -> - {noreply, S}. - -terminate(_Reason, _S) -> - true = ets:delete(pg_local_table), - ok. - -%%% -%%% Local functions -%%% - -%%% One ETS table, pg_local_table, is used for bookkeeping. The type of the -%%% table is ordered_set, and the fast matching of partially -%%% instantiated keys is used extensively. -%%% -%%% {{ref, Pid}, MonitorRef, Counter} -%%% {{ref, MonitorRef}, Pid} -%%% Each process has one monitor. Counter is incremented when the -%%% Pid joins some group. -%%% {{member, Name, Pid}, _} -%%% Pid is a member of group Name, GroupCounter is incremented when the -%%% Pid joins the group Name. -%%% {{pid, Pid, Name}} -%%% Pid is a member of group Name. - -member_died(Ref) -> - [{{ref, Ref}, Pid}] = ets:lookup(pg_local_table, {ref, Ref}), - Names = member_groups(Pid), - _ = [leave_group(Name, P) || - Name <- Names, - P <- member_in_group(Pid, Name)], - ok. - -join_group(Name, Pid) -> - Ref_Pid = {ref, Pid}, - try _ = ets:update_counter(pg_local_table, Ref_Pid, {3, +1}) - catch _:_ -> - Ref = erlang:monitor(process, Pid), - true = ets:insert(pg_local_table, {Ref_Pid, Ref, 1}), - true = ets:insert(pg_local_table, {{ref, Ref}, Pid}) - end, - Member_Name_Pid = {member, Name, Pid}, - try _ = ets:update_counter(pg_local_table, Member_Name_Pid, {2, +1}) - catch _:_ -> - true = ets:insert(pg_local_table, {Member_Name_Pid, 1}), - true = ets:insert(pg_local_table, {{pid, Pid, Name}}) - end. - -leave_group(Name, Pid) -> - Member_Name_Pid = {member, Name, Pid}, - try ets:update_counter(pg_local_table, Member_Name_Pid, {2, -1}) of - N -> - if - N =:= 0 -> - true = ets:delete(pg_local_table, {pid, Pid, Name}), - true = ets:delete(pg_local_table, Member_Name_Pid); - true -> - ok - end, - Ref_Pid = {ref, Pid}, - case ets:update_counter(pg_local_table, Ref_Pid, {3, -1}) of - 0 -> - [{Ref_Pid,Ref,0}] = ets:lookup(pg_local_table, Ref_Pid), - true = ets:delete(pg_local_table, {ref, Ref}), - true = ets:delete(pg_local_table, Ref_Pid), - true = erlang:demonitor(Ref, [flush]), - ok; - _ -> - ok - end - catch _:_ -> - ok - end. - -group_members(Name) -> - [P || - [P, N] <- ets:match(pg_local_table, {{member, Name, '$1'},'$2'}), - _ <- lists:seq(1, N)]. - -member_in_group(Pid, Name) -> - [{{member, Name, Pid}, N}] = ets:lookup(pg_local_table, {member, Name, Pid}), - lists:duplicate(N, Pid). - -member_groups(Pid) -> - [Name || [Name] <- ets:match(pg_local_table, {{pid, Pid, '$1'}})]. - -ensure_started() -> - case whereis(?MODULE) of - undefined -> - C = {pg_local, {?MODULE, start_link, []}, permanent, - 16#ffffffff, worker, [?MODULE]}, - supervisor:start_child(kernel_safe_sup, C); - PgLocalPid -> - {ok, PgLocalPid} - end. diff --git a/src/rabbit.erl b/src/rabbit.erl deleted file mode 100644 index 7576e46c..00000000 --- a/src/rabbit.erl +++ /dev/null @@ -1,523 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit). - --behaviour(application). - --export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, rotate_logs/1]). - --export([start/2, stop/1]). - --export([log_location/1]). - -%%--------------------------------------------------------------------------- -%% Boot steps. --export([maybe_insert_default_data/0]). - --rabbit_boot_step({codec_correctness_check, - [{description, "codec correctness check"}, - {mfa, {rabbit_binary_generator, - check_empty_content_body_frame_size, - []}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({database, - [{mfa, {rabbit_mnesia, init, []}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({file_handle_cache, - [{description, "file handle cache server"}, - {mfa, {rabbit_sup, start_restartable_child, - [file_handle_cache]}}, - {enables, worker_pool}]}). - --rabbit_boot_step({worker_pool, - [{description, "worker pool"}, - {mfa, {rabbit_sup, start_child, [worker_pool_sup]}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({external_infrastructure, - [{description, "external infrastructure ready"}]}). - --rabbit_boot_step({rabbit_exchange_type_registry, - [{description, "exchange type registry"}, - {mfa, {rabbit_sup, start_child, - [rabbit_exchange_type_registry]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_log, - [{description, "logging server"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_log]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_hooks, - [{description, "internal event notification system"}, - {mfa, {rabbit_hooks, start, []}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({kernel_ready, - [{description, "kernel ready"}, - {requires, external_infrastructure}]}). - --rabbit_boot_step({rabbit_alarm, - [{description, "alarm handler"}, - {mfa, {rabbit_alarm, start, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_memory_monitor, - [{description, "memory monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_memory_monitor]}}, - {requires, rabbit_alarm}, - {enables, core_initialized}]}). - --rabbit_boot_step({guid_generator, - [{description, "guid generator"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_guid]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({delegate_sup, - [{description, "cluster delegate"}, - {mfa, {rabbit_sup, start_child, - [delegate_sup]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_node_monitor, - [{description, "node monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_node_monitor]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({core_initialized, - [{description, "core initialized"}, - {requires, kernel_ready}]}). - --rabbit_boot_step({empty_db_check, - [{description, "empty DB check"}, - {mfa, {?MODULE, maybe_insert_default_data, []}}, - {requires, core_initialized}, - {enables, routing_ready}]}). - --rabbit_boot_step({exchange_recovery, - [{description, "exchange recovery"}, - {mfa, {rabbit_exchange, recover, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({queue_sup_queue_recovery, - [{description, "queue supervisor and queue recovery"}, - {mfa, {rabbit_amqqueue, start, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({routing_ready, - [{description, "message delivery logic ready"}, - {requires, core_initialized}]}). - --rabbit_boot_step({log_relay, - [{description, "error log relay"}, - {mfa, {rabbit_error_logger, boot, []}}, - {requires, routing_ready}, - {enables, networking}]}). - --rabbit_boot_step({networking, - [{mfa, {rabbit_networking, boot, []}}, - {requires, log_relay}, - {enables, networking_listening}]}). - --rabbit_boot_step({networking_listening, - [{description, "network listeners available"}]}). - -%%--------------------------------------------------------------------------- - --import(application). --import(mnesia). --import(lists). --import(inet). --import(gen_tcp). - --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --define(APPS, [os_mon, mnesia, rabbit]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(log_location() :: 'tty' | 'undefined' | string()). --type(file_suffix() :: binary()). - --spec(prepare/0 :: () -> 'ok'). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_halt/0 :: () -> 'ok'). --spec(rotate_logs/1 :: (file_suffix()) -> 'ok' | {'error', any()}). --spec(status/0 :: () -> - [{running_applications, [{atom(), string(), string()}]} | - {nodes, [{node_type(), [erlang_node()]}]} | - {running_nodes, [erlang_node()]}]). --spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). - --endif. - -%%---------------------------------------------------------------------------- - -prepare() -> - ok = ensure_working_log_handlers(), - ok = rabbit_mnesia:ensure_mnesia_dir(). - -start() -> - try - ok = prepare(), - ok = rabbit_misc:start_applications(?APPS) - after - %%give the error loggers some time to catch up - timer:sleep(100) - end. - -stop() -> - ok = rabbit_misc:stop_applications(?APPS). - -stop_and_halt() -> - try - stop() - after - init:stop() - end, - ok. - -status() -> - [{running_applications, application:which_applications()}] ++ - rabbit_mnesia:status(). - -rotate_logs(BinarySuffix) -> - Suffix = binary_to_list(BinarySuffix), - log_rotation_result(rotate_logs(log_location(kernel), - Suffix, - rabbit_error_logger_file_h), - rotate_logs(log_location(sasl), - Suffix, - rabbit_sasl_report_file_h)). - -%%-------------------------------------------------------------------- - -start(normal, []) -> - case erts_version_check() of - ok -> - {ok, SupPid} = rabbit_sup:start_link(), - - print_banner(), - [ok = run_boot_step(Step) || Step <- boot_steps()], - io:format("~nbroker running~n"), - - {ok, SupPid}; - Error -> - Error - end. - -stop(_State) -> - terminated_ok = error_logger:delete_report_handler(rabbit_error_logger), - ok = rabbit_alarm:stop(), - ok = case rabbit_mnesia:is_clustered() of - true -> rabbit_amqqueue:on_node_down(node()); - false -> rabbit_mnesia:empty_ram_only_tables() - end, - ok. - -%%--------------------------------------------------------------------------- - -erts_version_check() -> - FoundVer = erlang:system_info(version), - case rabbit_misc:version_compare(?ERTS_MINIMUM, FoundVer, lte) of - true -> ok; - false -> {error, {erlang_version_too_old, - {found, FoundVer}, {required, ?ERTS_MINIMUM}}} - end. - -boot_error(Format, Args) -> - io:format("BOOT ERROR: " ++ Format, Args), - error_logger:error_msg(Format, Args), - timer:sleep(1000), - exit({?MODULE, failure_during_boot}). - -run_boot_step({StepName, Attributes}) -> - Description = case lists:keysearch(description, 1, Attributes) of - {value, {_, D}} -> D; - false -> StepName - end, - case [MFA || {mfa, MFA} <- Attributes] of - [] -> - io:format("-- ~s~n", [Description]); - MFAs -> - io:format("starting ~-60s ...", [Description]), - [case catch apply(M,F,A) of - {'EXIT', Reason} -> - boot_error("FAILED~nReason: ~p~n", [Reason]); - ok -> - ok - end || {M,F,A} <- MFAs], - io:format("done~n"), - ok - end. - -module_attributes(Module) -> - case catch Module:module_info(attributes) of - {'EXIT', {undef, [{Module, module_info, _} | _]}} -> - io:format("WARNING: module ~p not found, so not scanned for boot steps.~n", - [Module]), - []; - {'EXIT', Reason} -> - exit(Reason); - V -> - V - end. - -boot_steps() -> - AllApps = [App || {App, _, _} <- application:loaded_applications()], - Modules = lists:usort( - lists:append([Modules - || {ok, Modules} <- - [application:get_key(App, modules) - || App <- AllApps]])), - UnsortedSteps = - lists:flatmap(fun (Module) -> - [{StepName, Attributes} - || {rabbit_boot_step, [{StepName, Attributes}]} - <- module_attributes(Module)] - end, Modules), - sort_boot_steps(UnsortedSteps). - -sort_boot_steps(UnsortedSteps) -> - G = digraph:new([acyclic]), - - %% Add vertices, with duplicate checking. - [case digraph:vertex(G, StepName) of - false -> digraph:add_vertex(G, StepName, Step); - _ -> boot_error("Duplicate boot step name: ~w~n", [StepName]) - end || Step = {StepName, _Attrs} <- UnsortedSteps], - - %% Add edges, detecting cycles and missing vertices. - lists:foreach(fun ({StepName, Attributes}) -> - [add_boot_step_dep(G, StepName, PrecedingStepName) - || {requires, PrecedingStepName} <- Attributes], - [add_boot_step_dep(G, SucceedingStepName, StepName) - || {enables, SucceedingStepName} <- Attributes] - end, UnsortedSteps), - - %% Use topological sort to find a consistent ordering (if there is - %% one, otherwise fail). - SortedStepsRev = [begin - {StepName, Step} = digraph:vertex(G, StepName), - Step - end || StepName <- digraph_utils:topsort(G)], - SortedSteps = lists:reverse(SortedStepsRev), - - digraph:delete(G), - - %% Check that all mentioned {M,F,A} triples are exported. - case [{StepName, {M,F,A}} - || {StepName, Attributes} <- SortedSteps, - {mfa, {M,F,A}} <- Attributes, - not erlang:function_exported(M, F, length(A))] of - [] -> SortedSteps; - MissingFunctions -> boot_error("Boot step functions not exported: ~p~n", - [MissingFunctions]) - end. - -add_boot_step_dep(G, RunsSecond, RunsFirst) -> - case digraph:add_edge(G, RunsSecond, RunsFirst) of - {error, Reason} -> - boot_error("Could not add boot step dependency of ~w on ~w:~n~s", - [RunsSecond, RunsFirst, - case Reason of - {bad_vertex, V} -> - io_lib:format("Boot step not registered: ~w~n", [V]); - {bad_edge, [First | Rest]} -> - [io_lib:format("Cyclic dependency: ~w", [First]), - [io_lib:format(" depends on ~w", [Next]) - || Next <- Rest], - io_lib:format(" depends on ~w~n", [First])] - end]); - _ -> - ok - end. - -%%--------------------------------------------------------------------------- - -log_location(Type) -> - case application:get_env(Type, case Type of - kernel -> error_logger; - sasl -> sasl_error_logger - end) of - {ok, {file, File}} -> File; - {ok, false} -> undefined; - {ok, tty} -> tty; - {ok, silent} -> undefined; - {ok, Bad} -> throw({error, {cannot_log_to_file, Bad}}); - _ -> undefined - end. - -app_location() -> - {ok, Application} = application:get_application(), - filename:absname(code:where_is_file(atom_to_list(Application) ++ ".app")). - -home_dir() -> - case init:get_argument(home) of - {ok, [[Home]]} -> Home; - Other -> Other - end. - -%--------------------------------------------------------------------------- - -print_banner() -> - {ok, Product} = application:get_key(id), - {ok, Version} = application:get_key(vsn), - ProductLen = string:len(Product), - io:format("~n" - "+---+ +---+~n" - "| | | |~n" - "| | | |~n" - "| | | |~n" - "| +---+ +-------+~n" - "| |~n" - "| ~s +---+ |~n" - "| | | |~n" - "| ~s +---+ |~n" - "| |~n" - "+-------------------+~n" - "AMQP ~p-~p-~p~n~s~n~s~n~n", - [Product, string:right([$v|Version], ProductLen), - ?PROTOCOL_VERSION_MAJOR, ?PROTOCOL_VERSION_MINOR, - ?PROTOCOL_VERSION_REVISION, - ?COPYRIGHT_MESSAGE, ?INFORMATION_MESSAGE]), - Settings = [{"node", node()}, - {"app descriptor", app_location()}, - {"home dir", home_dir()}, - {"cookie hash", rabbit_misc:cookie_hash()}, - {"log", log_location(kernel)}, - {"sasl log", log_location(sasl)}, - {"database dir", rabbit_mnesia:dir()}, - {"erlang version", erlang:system_info(version)}], - DescrLen = 1 + lists:max([length(K) || {K, _V} <- Settings]), - Format = "~-" ++ integer_to_list(DescrLen) ++ "s: ~s~n", - lists:foreach(fun ({K, V}) -> io:format(Format, [K, V]) end, Settings), - io:nl(). - -ensure_working_log_handlers() -> - Handlers = gen_event:which_handlers(error_logger), - ok = ensure_working_log_handler(error_logger_file_h, - rabbit_error_logger_file_h, - error_logger_tty_h, - log_location(kernel), - Handlers), - - ok = ensure_working_log_handler(sasl_report_file_h, - rabbit_sasl_report_file_h, - sasl_report_tty_h, - log_location(sasl), - Handlers), - ok. - -ensure_working_log_handler(OldFHandler, NewFHandler, TTYHandler, - LogLocation, Handlers) -> - case LogLocation of - undefined -> ok; - tty -> case lists:member(TTYHandler, Handlers) of - true -> ok; - false -> - throw({error, {cannot_log_to_tty, - TTYHandler, not_installed}}) - end; - _ -> case lists:member(NewFHandler, Handlers) of - true -> ok; - false -> case rotate_logs(LogLocation, "", - OldFHandler, NewFHandler) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_log_to_file, - LogLocation, Reason}}) - end - end - end. - -maybe_insert_default_data() -> - case rabbit_mnesia:is_db_empty() of - true -> insert_default_data(); - false -> ok - end. - -insert_default_data() -> - {ok, DefaultUser} = application:get_env(default_user), - {ok, DefaultPass} = application:get_env(default_pass), - {ok, DefaultVHost} = application:get_env(default_vhost), - {ok, [DefaultConfigurePerm, DefaultWritePerm, DefaultReadPerm]} = - application:get_env(default_permissions), - ok = rabbit_access_control:add_vhost(DefaultVHost), - ok = rabbit_access_control:add_user(DefaultUser, DefaultPass), - ok = rabbit_access_control:set_permissions(DefaultUser, DefaultVHost, - DefaultConfigurePerm, - DefaultWritePerm, - DefaultReadPerm), - ok. - -rotate_logs(File, Suffix, Handler) -> - rotate_logs(File, Suffix, Handler, Handler). - -rotate_logs(File, Suffix, OldHandler, NewHandler) -> - case File of - undefined -> ok; - tty -> ok; - _ -> gen_event:swap_handler( - error_logger, - {OldHandler, swap}, - {NewHandler, {File, Suffix}}) - end. - -log_rotation_result({error, MainLogError}, {error, SaslLogError}) -> - {error, {{cannot_rotate_main_logs, MainLogError}, - {cannot_rotate_sasl_logs, SaslLogError}}}; -log_rotation_result({error, MainLogError}, ok) -> - {error, {cannot_rotate_main_logs, MainLogError}}; -log_rotation_result(ok, {error, SaslLogError}) -> - {error, {cannot_rotate_sasl_logs, SaslLogError}}; -log_rotation_result(ok, ok) -> - ok. diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl deleted file mode 100644 index 23b84afb..00000000 --- a/src/rabbit_access_control.erl +++ /dev/null @@ -1,357 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_access_control). --include_lib("stdlib/include/qlc.hrl"). --include("rabbit.hrl"). - --export([check_login/2, user_pass_login/2, - check_vhost_access/2, check_resource_access/3]). --export([add_user/2, delete_user/1, change_password/2, list_users/0, - lookup_user/1]). --export([add_vhost/1, delete_vhost/1, list_vhosts/0]). --export([set_permissions/5, clear_permissions/2, - list_vhost_permissions/1, list_user_permissions/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(permission_atom() :: 'configure' | 'read' | 'write'). - --spec(check_login/2 :: (binary(), binary()) -> user()). --spec(user_pass_login/2 :: (username(), password()) -> user()). --spec(check_vhost_access/2 :: (user(), vhost()) -> 'ok'). --spec(check_resource_access/3 :: - (username(), r(atom()), permission_atom()) -> 'ok'). --spec(add_user/2 :: (username(), password()) -> 'ok'). --spec(delete_user/1 :: (username()) -> 'ok'). --spec(change_password/2 :: (username(), password()) -> 'ok'). --spec(list_users/0 :: () -> [username()]). --spec(lookup_user/1 :: (username()) -> {'ok', user()} | not_found()). --spec(add_vhost/1 :: (vhost()) -> 'ok'). --spec(delete_vhost/1 :: (vhost()) -> 'ok'). --spec(list_vhosts/0 :: () -> [vhost()]). --spec(set_permissions/5 :: - (username(), vhost(), regexp(), regexp(), regexp()) -> 'ok'). --spec(clear_permissions/2 :: (username(), vhost()) -> 'ok'). --spec(list_vhost_permissions/1 :: - (vhost()) -> [{username(), regexp(), regexp(), regexp()}]). --spec(list_user_permissions/1 :: - (username()) -> [{vhost(), regexp(), regexp(), regexp()}]). - --endif. - -%%---------------------------------------------------------------------------- - -%% SASL PLAIN, as used by the Qpid Java client and our clients. Also, -%% apparently, by OpenAMQ. -check_login(<<"PLAIN">>, Response) -> - [User, Pass] = [list_to_binary(T) || - T <- string:tokens(binary_to_list(Response), [0])], - user_pass_login(User, Pass); -%% AMQPLAIN, as used by Qpid Python test suite. The 0-8 spec actually -%% defines this as PLAIN, but in 0-9 that definition is gone, instead -%% referring generically to "SASL security mechanism", i.e. the above. -check_login(<<"AMQPLAIN">>, Response) -> - LoginTable = rabbit_binary_parser:parse_table(Response), - case {lists:keysearch(<<"LOGIN">>, 1, LoginTable), - lists:keysearch(<<"PASSWORD">>, 1, LoginTable)} of - {{value, {_, longstr, User}}, - {value, {_, longstr, Pass}}} -> - user_pass_login(User, Pass); - _ -> - %% Is this an information leak? - rabbit_misc:protocol_error( - access_refused, - "AMQPPLAIN auth info ~w is missing LOGIN or PASSWORD field", - [LoginTable]) - end; - -check_login(Mechanism, _Response) -> - rabbit_misc:protocol_error( - access_refused, "unsupported authentication mechanism '~s'", - [Mechanism]). - -user_pass_login(User, Pass) -> - ?LOGDEBUG("Login with user ~p pass ~p~n", [User, Pass]), - case lookup_user(User) of - {ok, U} -> - if - Pass == U#user.password -> U; - true -> - rabbit_misc:protocol_error( - access_refused, "login refused for user '~s'", [User]) - end; - {error, not_found} -> - rabbit_misc:protocol_error( - access_refused, "login refused for user '~s'", [User]) - end. - -internal_lookup_vhost_access(Username, VHostPath) -> - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> not_found; - [R] -> {ok, R} - end - end). - -check_vhost_access(#user{username = Username}, VHostPath) -> - ?LOGDEBUG("Checking VHost access for ~p to ~p~n", [Username, VHostPath]), - case internal_lookup_vhost_access(Username, VHostPath) of - {ok, _R} -> - ok; - not_found -> - rabbit_misc:protocol_error( - access_refused, "access to vhost '~s' refused for user '~s'", - [VHostPath, Username]) - end. - -permission_index(configure) -> #permission.configure; -permission_index(write) -> #permission.write; -permission_index(read) -> #permission.read. - -check_resource_access(Username, - R = #resource{kind = exchange, name = <<"">>}, - Permission) -> - check_resource_access(Username, - R#resource{name = <<"amq.default">>}, - Permission); -check_resource_access(_Username, - #resource{name = <<"amq.gen",_/binary>>}, - _Permission) -> - ok; -check_resource_access(Username, - R = #resource{virtual_host = VHostPath, name = Name}, - Permission) -> - Res = case mnesia:dirty_read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> - false; - [#user_permission{permission = P}] -> - case regexp:match( - binary_to_list(Name), - binary_to_list(element(permission_index(Permission), P))) of - {match, _, _} -> true; - nomatch -> false - end - end, - if Res -> ok; - true -> rabbit_misc:protocol_error( - access_refused, "access to ~s refused for user '~s'", - [rabbit_misc:rs(R), Username]) - end. - -add_user(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_user, Username}) of - [] -> - ok = mnesia:write(rabbit_user, - #user{username = Username, - password = Password}, - write); - _ -> - mnesia:abort({user_already_exists, Username}) - end - end), - rabbit_log:info("Created user ~p~n", [Username]), - R. - -delete_user(Username) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:delete({rabbit_user, Username}), - [ok = mnesia:delete_object( - rabbit_user_permission, R, write) || - R <- mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = '_'}, - permission = '_'}, - write)], - ok - end)), - rabbit_log:info("Deleted user ~p~n", [Username]), - R. - -change_password(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:write(rabbit_user, - #user{username = Username, - password = Password}, - write) - end)), - rabbit_log:info("Changed password for user ~p~n", [Username]), - R. - -list_users() -> - mnesia:dirty_all_keys(rabbit_user). - -lookup_user(Username) -> - rabbit_misc:dirty_read({rabbit_user, Username}). - -add_vhost(VHostPath) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_vhost, VHostPath}) of - [] -> - ok = mnesia:write(rabbit_vhost, - #vhost{virtual_host = VHostPath}, - write), - [rabbit_exchange:declare( - rabbit_misc:r(VHostPath, exchange, Name), - Type, true, []) || - {Name,Type} <- - [{<<"">>, direct}, - {<<"amq.direct">>, direct}, - {<<"amq.topic">>, topic}, - {<<"amq.match">>, headers}, %% per 0-9-1 pdf - {<<"amq.headers">>, headers}, %% per 0-9-1 xml - {<<"amq.fanout">>, fanout}]], - ok; - [_] -> - mnesia:abort({vhost_already_exists, VHostPath}) - end - end), - rabbit_log:info("Added vhost ~p~n", [VHostPath]), - R. - -delete_vhost(VHostPath) -> - %%FIXME: We are forced to delete the queues outside the TX below - %%because queue deletion involves sending messages to the queue - %%process, which in turn results in further mnesia actions and - %%eventually the termination of that process. - lists:foreach(fun (Q) -> - {ok,_} = rabbit_amqqueue:delete(Q, false, false) - end, - rabbit_amqqueue:list(VHostPath)), - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_vhost( - VHostPath, - fun () -> - ok = internal_delete_vhost(VHostPath) - end)), - rabbit_log:info("Deleted vhost ~p~n", [VHostPath]), - R. - -internal_delete_vhost(VHostPath) -> - lists:foreach(fun (#exchange{name=Name}) -> - ok = rabbit_exchange:delete(Name, false) - end, - rabbit_exchange:list(VHostPath)), - lists:foreach(fun ({Username, _, _, _}) -> - ok = clear_permissions(Username, VHostPath) - end, - list_vhost_permissions(VHostPath)), - ok = mnesia:delete({rabbit_vhost, VHostPath}), - ok. - -list_vhosts() -> - mnesia:dirty_all_keys(rabbit_vhost). - -validate_regexp(RegexpBin) -> - Regexp = binary_to_list(RegexpBin), - case regexp:parse(Regexp) of - {ok, _} -> ok; - {error, Reason} -> throw({error, {invalid_regexp, Regexp, Reason}}) - end. - -set_permissions(Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm) -> - lists:map(fun validate_regexp/1, [ConfigurePerm, WritePerm, ReadPerm]), - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> ok = mnesia:write( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}}, - write) - end)). - -clear_permissions(Username, VHostPath) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> - ok = mnesia:delete({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) - end)). - -list_vhost_permissions(VHostPath) -> - [{Username, ConfigurePerm, WritePerm, ReadPerm} || - {Username, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_vhost( - VHostPath, match_user_vhost('_', VHostPath)))]. - -list_user_permissions(Username) -> - [{VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {_, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user( - Username, match_user_vhost(Username, '_')))]. - -list_permissions(QueryThunk) -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - #user_permission{user_vhost = #user_vhost{username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}} <- - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction(QueryThunk)]. - -match_user_vhost(Username, VHostPath) -> - fun () -> mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = '_'}, - read) - end. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl deleted file mode 100644 index 378d0cbc..00000000 --- a/src/rabbit_amqqueue.erl +++ /dev/null @@ -1,404 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_amqqueue). - --export([start/0, declare/5, delete/3, purge/1]). --export([internal_declare/2, internal_delete/1, - maybe_run_queue_via_backing_queue/2, - update_ram_duration/1, set_ram_duration_target/2, - set_maximum_since_use/2]). --export([pseudo_queue/2]). --export([lookup/1, with/2, with_or_die/2, - stat/1, stat_all/0, deliver/2, requeue/3, ack/4]). --export([list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). --export([consumers/1, consumers_all/1]). --export([basic_get/3, basic_consume/7, basic_cancel/4]). --export([notify_sent/2, unblock/2, flush_all/2]). --export([commit_all/3, rollback_all/3, notify_down_all/2, limit_all/3]). --export([on_node_down/1]). - --import(mnesia). --import(gen_server2). --import(lists). --import(queue). - --include("rabbit.hrl"). --include_lib("stdlib/include/qlc.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(qstats() :: {'ok', queue_name(), non_neg_integer(), non_neg_integer()}). --type(qlen() :: {'ok', non_neg_integer()}). --type(qfun(A) :: fun ((amqqueue()) -> A)). --type(ok_or_errors() :: - 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). - --spec(start/0 :: () -> 'ok'). --spec(declare/5 :: (queue_name(), boolean(), boolean(), amqp_table(), - maybe(pid())) -> {'new' | 'existing', amqqueue()}). --spec(lookup/1 :: (queue_name()) -> {'ok', amqqueue()} | not_found()). --spec(with/2 :: (queue_name(), qfun(A)) -> A | not_found()). --spec(with_or_die/2 :: (queue_name(), qfun(A)) -> A). --spec(list/1 :: (vhost()) -> [amqqueue()]). --spec(info_keys/0 :: () -> [info_key()]). --spec(info/1 :: (amqqueue()) -> [info()]). --spec(info/2 :: (amqqueue(), [info_key()]) -> [info()]). --spec(info_all/1 :: (vhost()) -> [[info()]]). --spec(info_all/2 :: (vhost(), [info_key()]) -> [[info()]]). --spec(consumers/1 :: (amqqueue()) -> [{pid(), ctag(), boolean()}]). --spec(consumers_all/1 :: - (vhost()) -> [{queue_name(), pid(), ctag(), boolean()}]). --spec(stat/1 :: (amqqueue()) -> qstats()). --spec(stat_all/0 :: () -> [qstats()]). --spec(delete/3 :: - (amqqueue(), 'false', 'false') -> qlen(); - (amqqueue(), 'true' , 'false') -> qlen() | {'error', 'in_use'}; - (amqqueue(), 'false', 'true' ) -> qlen() | {'error', 'not_empty'}; - (amqqueue(), 'true' , 'true' ) -> qlen() | - {'error', 'in_use'} | - {'error', 'not_empty'}). --spec(purge/1 :: (amqqueue()) -> qlen()). --spec(deliver/2 :: (pid(), delivery()) -> boolean()). --spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). --spec(ack/4 :: (pid(), maybe(txn()), [msg_id()], pid()) -> 'ok'). --spec(commit_all/3 :: ([pid()], txn(), pid()) -> ok_or_errors()). --spec(rollback_all/3 :: ([pid()], txn(), pid()) -> 'ok'). --spec(notify_down_all/2 :: ([pid()], pid()) -> ok_or_errors()). --spec(limit_all/3 :: ([pid()], pid(), pid() | 'undefined') -> ok_or_errors()). --spec(basic_get/3 :: (amqqueue(), pid(), boolean()) -> - {'ok', non_neg_integer(), qmsg()} | 'empty'). --spec(basic_consume/7 :: - (amqqueue(), boolean(), pid(), pid() | 'undefined', ctag(), - boolean(), any()) -> - 'ok' | {'error', 'exclusive_consume_unavailable'}). --spec(basic_cancel/4 :: (amqqueue(), pid(), ctag(), any()) -> 'ok'). --spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(flush_all/2 :: ([pid()], pid()) -> 'ok'). --spec(internal_declare/2 :: (amqqueue(), boolean()) -> amqqueue() | 'not_found'). --spec(internal_delete/1 :: (queue_name()) -> 'ok' | not_found()). --spec(maybe_run_queue_via_backing_queue/2 :: (pid(), (fun ((A) -> A))) -> 'ok'). --spec(update_ram_duration/1 :: (pid()) -> 'ok'). --spec(set_ram_duration_target/2 :: (pid(), number() | 'infinity') -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). --spec(on_node_down/1 :: (erlang_node()) -> 'ok'). --spec(pseudo_queue/2 :: (binary(), pid()) -> amqqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - DurableQueues = find_durable_queues(), - {ok, BQ} = application:get_env(backing_queue_module), - ok = BQ:start([QName || #amqqueue{name = QName} <- DurableQueues]), - {ok,_} = supervisor:start_child( - rabbit_sup, - {rabbit_amqqueue_sup, - {rabbit_amqqueue_sup, start_link, []}, - transient, infinity, supervisor, [rabbit_amqqueue_sup]}), - _RealDurableQueues = recover_durable_queues(DurableQueues), - ok. - -find_durable_queues() -> - Node = node(), - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end). - -recover_durable_queues(DurableQueues) -> - Qs = [start_queue_process(Q) || Q <- DurableQueues], - [Q || Q <- Qs, gen_server2:call(Q#amqqueue.pid, {init, true}) == Q]. - -declare(QueueName, Durable, AutoDelete, Args, Owner) -> - Q = start_queue_process(#amqqueue{name = QueueName, - durable = Durable, - auto_delete = AutoDelete, - arguments = Args, - exclusive_owner = Owner, - pid = none}), - case gen_server2:call(Q#amqqueue.pid, {init, false}) of - not_found -> rabbit_misc:not_found(QueueName); - Q1 -> Q1 - end. - -internal_declare(Q = #amqqueue{name = QueueName}, Recover) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - case Recover of - true -> - ok = store_queue(Q), - Q; - false -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> - case mnesia:read({rabbit_durable_queue, - QueueName}) of - [] -> ok = store_queue(Q), - ok = add_default_binding(Q), - Q; - [_] -> not_found %% Q exists on stopped node - end; - [ExistingQ] -> - ExistingQ - end - end - end). - -store_queue(Q = #amqqueue{durable = true}) -> - ok = mnesia:write(rabbit_durable_queue, Q, write), - ok = mnesia:write(rabbit_queue, Q, write), - ok; -store_queue(Q = #amqqueue{durable = false}) -> - ok = mnesia:write(rabbit_queue, Q, write), - ok. - -start_queue_process(Q) -> - {ok, Pid} = rabbit_amqqueue_sup:start_child([Q]), - Q#amqqueue{pid = Pid}. - -add_default_binding(#amqqueue{name = QueueName}) -> - Exchange = rabbit_misc:r(QueueName, exchange, <<>>), - RoutingKey = QueueName#resource.name, - rabbit_exchange:add_binding(Exchange, QueueName, RoutingKey, [], - fun (_X, _Q) -> ok end), - ok. - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_queue, Name}). - -with(Name, F, E) -> - case lookup(Name) of - {ok, Q} -> rabbit_misc:with_exit_handler(E, fun () -> F(Q) end); - {error, not_found} -> E() - end. - -with(Name, F) -> - with(Name, F, fun () -> {error, not_found} end). -with_or_die(Name, F) -> - with(Name, F, fun () -> rabbit_misc:not_found(Name) end). - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_queue, - #amqqueue{name = rabbit_misc:r(VHostPath, queue), _ = '_'}). - -info_keys() -> rabbit_amqqueue_process:info_keys(). - -map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). - -info(#amqqueue{ pid = QPid }) -> - delegate_pcall(QPid, 9, info, infinity). - -info(#amqqueue{ pid = QPid }, Items) -> - case delegate_pcall(QPid, 9, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). - -consumers(#amqqueue{ pid = QPid }) -> - delegate_pcall(QPid, 9, consumers, infinity). - -consumers_all(VHostPath) -> - lists:concat( - map(VHostPath, - fun (Q) -> [{Q#amqqueue.name, ChPid, ConsumerTag, AckRequired} || - {ChPid, ConsumerTag, AckRequired} <- consumers(Q)] - end)). - -stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat, infinity). - -stat_all() -> - lists:map(fun stat/1, rabbit_misc:dirty_read_all(rabbit_queue)). - -delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}, infinity). - -purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge, infinity). - -deliver(QPid, #delivery{immediate = true, - txn = Txn, sender = ChPid, message = Message}) -> - gen_server2:call(QPid, {deliver_immediately, Txn, Message, ChPid}, - infinity); -deliver(QPid, #delivery{mandatory = true, - txn = Txn, sender = ChPid, message = Message}) -> - gen_server2:call(QPid, {deliver, Txn, Message, ChPid}, infinity), - true; -deliver(QPid, #delivery{txn = Txn, sender = ChPid, message = Message}) -> - gen_server2:cast(QPid, {deliver, Txn, Message, ChPid}), - true. - -requeue(QPid, MsgIds, ChPid) -> - delegate_call(QPid, {requeue, MsgIds, ChPid}, infinity). - -ack(QPid, Txn, MsgIds, ChPid) -> - delegate_pcast(QPid, 7, {ack, Txn, MsgIds, ChPid}). - -commit_all(QPids, Txn, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> exit({queue_disappeared, QPid}) end, - fun (QPid) -> gen_server2:call(QPid, {commit, Txn, ChPid}, infinity) end, - QPids). - -rollback_all(QPids, Txn, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {rollback, Txn, ChPid}) end). - -notify_down_all(QPids, ChPid) -> - safe_delegate_call_ok( - %% we don't care if the queue process has terminated in the - %% meantime - fun (_) -> ok end, - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, infinity) end, - QPids). - -limit_all(QPids, ChPid, LimiterPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> - gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) - end). - -basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> - delegate_call(QPid, {basic_get, ChPid, NoAck}, infinity). - -basic_consume(#amqqueue{pid = QPid}, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg) -> - delegate_call(QPid, {basic_consume, NoAck, ChPid, - LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg}, - infinity). - -basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> - ok = delegate_call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}, - infinity). - -notify_sent(QPid, ChPid) -> - delegate_pcast(QPid, 7, {notify_sent, ChPid}). - -unblock(QPid, ChPid) -> - delegate_pcast(QPid, 7, {unblock, ChPid}). - -flush_all(QPids, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). - -internal_delete1(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - ok = mnesia:delete({rabbit_durable_queue, QueueName}), - %% we want to execute some things, as - %% decided by rabbit_exchange, after the - %% transaction. - rabbit_exchange:delete_queue_bindings(QueueName). - -internal_delete(QueueName) -> - case - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> {error, not_found}; - [_] -> internal_delete1(QueueName) - end - end) of - Err = {error, _} -> Err; - PostHook -> - PostHook(), - ok - end. - -maybe_run_queue_via_backing_queue(QPid, Fun) -> - gen_server2:pcall(QPid, 7, {maybe_run_queue_via_backing_queue, Fun}, - infinity). - -update_ram_duration(QPid) -> - gen_server2:pcast(QPid, 8, update_ram_duration). - -set_ram_duration_target(QPid, Duration) -> - gen_server2:pcast(QPid, 8, {set_ram_duration_target, Duration}). - -set_maximum_since_use(QPid, Age) -> - gen_server2:pcast(QPid, 8, {set_maximum_since_use, Age}). - -on_node_down(Node) -> - [Hook() || - Hook <- rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([delete_queue(QueueName) || - #amqqueue{name = QueueName, pid = Pid} - <- mnesia:table(rabbit_queue), - node(Pid) == Node])) - end)], - ok. - -delete_queue(QueueName) -> - Post = rabbit_exchange:delete_transient_queue_bindings(QueueName), - ok = mnesia:delete({rabbit_queue, QueueName}), - Post. - -pseudo_queue(QueueName, Pid) -> - #amqqueue{name = QueueName, - durable = false, - auto_delete = false, - arguments = [], - pid = Pid}. - -safe_delegate_call_ok(H, F, Pids) -> - {_, Bad} = delegate:invoke(Pids, - fun (Pid) -> - rabbit_misc:with_exit_handler( - fun () -> H(Pid) end, - fun () -> F(Pid) end) - end), - case Bad of - [] -> ok; - _ -> {error, Bad} - end. - -delegate_call(Pid, Msg, Timeout) -> - delegate:invoke(Pid, fun (P) -> gen_server2:call(P, Msg, Timeout) end). - -delegate_pcall(Pid, Pri, Msg, Timeout) -> - delegate:invoke(Pid, - fun (P) -> gen_server2:pcall(P, Pri, Msg, Timeout) end). - -delegate_pcast(Pid, Pri, Msg) -> - delegate:invoke_no_result(Pid, - fun (P) -> gen_server2:pcast(P, Pri, Msg) end). - diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl deleted file mode 100644 index 70e6e755..00000000 --- a/src/rabbit_amqqueue_process.erl +++ /dev/null @@ -1,844 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_amqqueue_process). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(gen_server2). - --define(UNSENT_MESSAGE_LIMIT, 100). --define(SYNC_INTERVAL, 5). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). - --export([start_link/1, info_keys/0]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1]). - --import(queue). --import(erlang). --import(lists). - -% Queue's state --record(q, {q, - exclusive_consumer, - has_had_consumers, - backing_queue, - backing_queue_state, - active_consumers, - blocked_consumers, - sync_timer_ref, - rate_timer_ref - }). - --record(consumer, {tag, ack_required}). - -%% These are held in our process dictionary --record(cr, {consumer_count, - ch_pid, - limiter_pid, - monitor_ref, - acktags, - is_limit_active, - txn, - unsent_message_count}). - --define(INFO_KEYS, - [name, - durable, - auto_delete, - arguments, - pid, - owner_pid, - exclusive_consumer_pid, - exclusive_consumer_tag, - messages_ready, - messages_unacknowledged, - messages, - consumers, - memory, - backing_queue_status - ]). - -%%---------------------------------------------------------------------------- - -start_link(Q) -> gen_server2:start_link(?MODULE, Q, []). - -info_keys() -> ?INFO_KEYS. - -%%---------------------------------------------------------------------------- - -init(Q) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - process_flag(trap_exit, true), - {ok, BQ} = application:get_env(backing_queue_module), - - {ok, #q{q = Q#amqqueue{pid = self()}, - exclusive_consumer = none, - has_had_consumers = false, - backing_queue = BQ, - backing_queue_state = undefined, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - sync_timer_ref = undefined, - rate_timer_ref = undefined}, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -terminate(shutdown, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate({shutdown, _}, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate(_Reason, State = #q{backing_queue = BQ}) -> - %% FIXME: How do we cancel active subscriptions? - terminate_shutdown(fun (BQS) -> - BQS1 = BQ:delete_and_terminate(BQS), - %% don't care if the internal delete - %% doesn't return 'ok'. - rabbit_amqqueue:internal_delete(qname(State)), - BQS1 - end, State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -declare(Recover, From, - State = #q{q = Q = #amqqueue{name = QName, durable = IsDurable}, - backing_queue = BQ, backing_queue_state = undefined}) -> - case rabbit_amqqueue:internal_declare(Q, Recover) of - not_found -> {stop, normal, not_found, State}; - Q -> gen_server2:reply(From, {new, Q}), - ok = file_handle_cache:register_callback( - rabbit_amqqueue, set_maximum_since_use, - [self()]), - ok = rabbit_memory_monitor:register( - self(), {rabbit_amqqueue, - set_ram_duration_target, [self()]}), - BQS = BQ:init(QName, IsDurable, Recover), - noreply(State#q{backing_queue_state = BQS}); - Q1 -> {stop, normal, {existing, Q1}, State} - end. - -terminate_shutdown(Fun, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - stop_sync_timer(stop_rate_timer(State)), - case BQS of - undefined -> State; - _ -> ok = rabbit_memory_monitor:deregister(self()), - BQS1 = lists:foldl( - fun (#cr{txn = none}, BQSN) -> - BQSN; - (#cr{txn = Txn}, BQSN) -> - {_AckTags, BQSN1} = - BQ:tx_rollback(Txn, BQSN), - BQSN1 - end, BQS, all_ch_record()), - State1#q{backing_queue_state = Fun(BQS1)} - end. - -reply(Reply, NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {reply, Reply, NewState1, Timeout}. - -noreply(NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {noreply, NewState1, Timeout}. - -next_state(State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - ensure_rate_timer(State), - case BQ:needs_sync(BQS)of - true -> {ensure_sync_timer(State1), 0}; - false -> {stop_sync_timer(State1), hibernate} - end. - -ensure_sync_timer(State = #q{sync_timer_ref = undefined, backing_queue = BQ}) -> - {ok, TRef} = timer:apply_after( - ?SYNC_INTERVAL, - rabbit_amqqueue, maybe_run_queue_via_backing_queue, - [self(), fun (BQS) -> BQ:sync(BQS) end]), - State#q{sync_timer_ref = TRef}; -ensure_sync_timer(State) -> - State. - -stop_sync_timer(State = #q{sync_timer_ref = undefined}) -> - State; -stop_sync_timer(State = #q{sync_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{sync_timer_ref = undefined}. - -ensure_rate_timer(State = #q{rate_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), - State#q{rate_timer_ref = TRef}; -ensure_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -ensure_rate_timer(State) -> - State. - -stop_rate_timer(State = #q{rate_timer_ref = undefined}) -> - State; -stop_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{rate_timer_ref = undefined}. - -assert_invariant(#q{active_consumers = AC, - backing_queue = BQ, backing_queue_state = BQS}) -> - true = (queue:is_empty(AC) orelse BQ:is_empty(BQS)). - -lookup_ch(ChPid) -> - case get({ch, ChPid}) of - undefined -> not_found; - C -> C - end. - -ch_record(ChPid) -> - Key = {ch, ChPid}, - case get(Key) of - undefined -> - MonitorRef = erlang:monitor(process, ChPid), - C = #cr{consumer_count = 0, - ch_pid = ChPid, - monitor_ref = MonitorRef, - acktags = sets:new(), - is_limit_active = false, - txn = none, - unsent_message_count = 0}, - put(Key, C), - C; - C = #cr{} -> C - end. - -store_ch_record(C = #cr{ch_pid = ChPid}) -> - put({ch, ChPid}, C). - -all_ch_record() -> - [C || {{ch, _}, C} <- get()]. - -is_ch_blocked(#cr{unsent_message_count = Count, is_limit_active = Limited}) -> - Limited orelse Count >= ?UNSENT_MESSAGE_LIMIT. - -ch_record_state_transition(OldCR, NewCR) -> - BlockedOld = is_ch_blocked(OldCR), - BlockedNew = is_ch_blocked(NewCR), - if BlockedOld andalso not(BlockedNew) -> unblock; - BlockedNew andalso not(BlockedOld) -> block; - true -> ok - end. - -record_current_channel_tx(ChPid, Txn) -> - %% as a side effect this also starts monitoring the channel (if - %% that wasn't happening already) - store_ch_record((ch_record(ChPid))#cr{txn = Txn}). - -deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - case queue:out(ActiveConsumers) of - {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}}, - ActiveConsumersTail} -> - C = #cr{limiter_pid = LimiterPid, - unsent_message_count = Count, - acktags = ChAckTags} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of - true -> - {{Message, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), AckTag, IsDelivered, Message}), - ChAckTags1 = case AckRequired of - true -> sets:add_element( - AckTag, ChAckTags); - false -> ChAckTags - end, - NewC = C#cr{unsent_message_count = Count + 1, - acktags = ChAckTags1}, - store_ch_record(NewC), - {NewActiveConsumers, NewBlockedConsumers} = - case ch_record_state_transition(C, NewC) of - ok -> {queue:in(QEntry, ActiveConsumersTail), - BlockedConsumers}; - block -> - {ActiveConsumers1, BlockedConsumers1} = - move_consumers(ChPid, - ActiveConsumersTail, - BlockedConsumers), - {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} - end, - State2 = State1#q{ - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}, - deliver_msgs_to_consumers(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> - store_ch_record(C#cr{is_limit_active = true}), - {NewActiveConsumers, NewBlockedConsumers} = - move_consumers(ChPid, - ActiveConsumers, - BlockedConsumers), - deliver_msgs_to_consumers( - Funs, FunAcc, - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} - end; - {empty, _} -> - {FunAcc, State} - end. - -deliver_from_queue_pred(IsEmpty, _State) -> - not IsEmpty. - -deliver_from_queue_deliver(AckRequired, false, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {{Message, IsDelivered, AckTag, Remaining}, BQS1} = - BQ:fetch(AckRequired, BQS), - {{Message, IsDelivered, AckTag}, 0 == Remaining, - State #q { backing_queue_state = BQS1 }}. - -run_message_queue(State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - Funs = {fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3}, - IsEmpty = BQ:is_empty(BQS), - {_IsEmpty1, State1} = deliver_msgs_to_consumers(Funs, IsEmpty, State), - State1. - -attempt_delivery(none, _ChPid, Message, State = #q{backing_queue = BQ}) -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1 = #q{backing_queue_state = BQS}) -> - {AckTag, BQS1} = - BQ:publish_delivered(AckRequired, Message, BQS), - {{Message, false, AckTag}, true, - State1#q{backing_queue_state = BQS1}} - end, - deliver_msgs_to_consumers({ PredFun, DeliverFun }, false, State); -attempt_delivery(Txn, ChPid, Message, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - record_current_channel_tx(ChPid, Txn), - {true, State#q{backing_queue_state = BQ:tx_publish(Txn, Message, BQS)}}. - -deliver_or_enqueue(Txn, ChPid, Message, State = #q{backing_queue = BQ}) -> - case attempt_delivery(Txn, ChPid, Message, State) of - {true, NewState} -> - {true, NewState}; - {false, NewState} -> - %% Txn is none and no unblocked channels with consumers - BQS = BQ:publish(Message, State #q.backing_queue_state), - {false, NewState#q{backing_queue_state = BQS}} - end. - -requeue_and_run(AckTags, State = #q{backing_queue = BQ}) -> - maybe_run_queue_via_backing_queue( - fun (BQS) -> BQ:requeue(AckTags, BQS) end, State). - -add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). - -remove_consumer(ChPid, ConsumerTag, Queue) -> - queue:filter(fun ({CP, #consumer{tag = CT}}) -> - (CP /= ChPid) or (CT /= ConsumerTag) - end, Queue). - -remove_consumers(ChPid, Queue) -> - queue:filter(fun ({CP, _}) -> CP /= ChPid end, Queue). - -move_consumers(ChPid, From, To) -> - {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, - queue:to_list(From)), - {queue:from_list(Kept), queue:join(To, queue:from_list(Removed))}. - -possibly_unblock(State, ChPid, Update) -> - case lookup_ch(ChPid) of - not_found -> - State; - C -> - NewC = Update(C), - store_ch_record(NewC), - case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> {NewBlockedConsumers, NewActiveConsumers} = - move_consumers(ChPid, - State#q.blocked_consumers, - State#q.active_consumers), - run_message_queue( - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}) - end - end. - -should_auto_delete(#q{q = #amqqueue{auto_delete = false}}) -> false; -should_auto_delete(#q{has_had_consumers = false}) -> false; -should_auto_delete(State) -> is_unused(State). - -handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(DownPid) of - not_found -> - {ok, State}; - #cr{monitor_ref = MonitorRef, ch_pid = ChPid, txn = Txn, - acktags = ChAckTags} -> - erlang:demonitor(MonitorRef), - erase({ch, ChPid}), - State1 = State#q{ - exclusive_consumer = case Holder of - {ChPid, _} -> none; - Other -> Other - end, - active_consumers = remove_consumers( - ChPid, State#q.active_consumers), - blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, - case should_auto_delete(State1) of - true -> {stop, State1}; - false -> State2 = case Txn of - none -> State1; - _ -> rollback_transaction(Txn, ChPid, - State1) - end, - {ok, requeue_and_run(sets:to_list(ChAckTags), State2)} - end - end. - -cancel_holder(ChPid, ConsumerTag, {ChPid, ConsumerTag}) -> - none; -cancel_holder(_ChPid, _ConsumerTag, Holder) -> - Holder. - -check_exclusive_access({_ChPid, _ConsumerTag}, _ExclusiveConsume, _State) -> - in_use; -check_exclusive_access(none, false, _State) -> - ok; -check_exclusive_access(none, true, State) -> - case is_unused(State) of - true -> ok; - false -> in_use - end. - -is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso - queue:is_empty(State#q.blocked_consumers). - -maybe_send_reply(_ChPid, undefined) -> ok; -maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). - -qname(#q{q = #amqqueue{name = QName}}) -> QName. - -maybe_run_queue_via_backing_queue(Fun, State = #q{backing_queue_state = BQS}) -> - run_message_queue(State#q{backing_queue_state = Fun(BQS)}). - -commit_transaction(Txn, From, ChPid, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {AckTags, BQS1} = - BQ:tx_commit(Txn, fun () -> gen_server2:reply(From, ok) end, BQS), - %% ChPid must be known here because of the participant management - %% by the channel. - C = #cr{acktags = ChAckTags} = lookup_ch(ChPid), - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - store_ch_record(C#cr{acktags = ChAckTags1, txn = none}), - State#q{backing_queue_state = BQS1}. - -rollback_transaction(Txn, ChPid, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {_AckTags, BQS1} = BQ:tx_rollback(Txn, BQS), - %% Iff we removed acktags from the channel record on ack+txn then - %% we would add them back in here (would also require ChPid) - record_current_channel_tx(ChPid, none), - State#q{backing_queue_state = BQS1}. - -subtract_acks(A, B) when is_list(B) -> - lists:foldl(fun sets:del_element/2, A, B). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(name, #q{q = #amqqueue{name = Name}}) -> Name; -i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; -i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; -i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(pid, _) -> - self(); -i(owner_pid, #q{q = #amqqueue{exclusive_owner = none}}) -> - ''; -i(owner_pid, #q{q = #amqqueue{exclusive_owner = ExclusiveOwner}}) -> - ExclusiveOwner; -i(exclusive_consumer_pid, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_pid, #q{exclusive_consumer = {ChPid, _ConsumerTag}}) -> - ChPid; -i(exclusive_consumer_tag, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_tag, #q{exclusive_consumer = {_ChPid, ConsumerTag}}) -> - ConsumerTag; -i(messages_ready, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:len(BQS); -i(messages_unacknowledged, _) -> - lists:sum([sets:size(C#cr.acktags) || C <- all_ch_record()]); -i(messages, State) -> - lists:sum([i(Item, State) || Item <- [messages_ready, - messages_unacknowledged]]); -i(consumers, State) -> - queue:len(State#q.active_consumers) + queue:len(State#q.blocked_consumers); -i(memory, _) -> - {memory, M} = process_info(self(), memory), - M; -i(backing_queue_status, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:status(BQS); -i(Item, _) -> - throw({bad_argument, Item}). - -%--------------------------------------------------------------------------- - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = none}}) -> - declare(Recover, From, State); - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = Owner}}) -> - case rpc:call(node(Owner), erlang, is_process_alive, [Owner]) of - true -> erlang:monitor(process, Owner), - declare(Recover, From, State); - _ -> #q{q = #amqqueue{name = QName, durable = IsDurable}, - backing_queue = BQ, backing_queue_state = undefined} = State, - case Recover of - true -> ok; - _ -> rabbit_log:warning( - "Queue ~p exclusive owner went away~n", [QName]) - end, - BQS = BQ:init(QName, IsDurable, Recover), - %% Rely on terminate to delete the queue. - {stop, normal, not_found, State#q{backing_queue_state = BQS}} - end; - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(consumers, _From, - State = #q{active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - reply(rabbit_misc:queue_fold( - fun ({ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}, Acc) -> - [{ChPid, ConsumerTag, AckRequired} | Acc] - end, [], queue:join(ActiveConsumers, BlockedConsumers)), State); - -handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> - %% Synchronous, "immediate" delivery mode - %% - %% FIXME: Is this correct semantics? - %% - %% I'm worried in particular about the case where an exchange has - %% two queues against a particular routing key, and a message is - %% sent in immediate mode through the binding. In non-immediate - %% mode, both queues get the message, saving it for later if - %% there's noone ready to receive it just now. In immediate mode, - %% should both queues still get the message, somehow, or should - %% just all ready-to-consume queues get the message, with unready - %% queues discarding the message? - %% - {Delivered, NewState} = attempt_delivery(Txn, ChPid, Message, State), - reply(Delivered, NewState); - -handle_call({deliver, Txn, Message, ChPid}, _From, State) -> - %% Synchronous, "mandatory" delivery mode - {Delivered, NewState} = deliver_or_enqueue(Txn, ChPid, Message, State), - reply(Delivered, NewState); - -handle_call({commit, Txn, ChPid}, From, State) -> - NewState = commit_transaction(Txn, From, ChPid, State), - noreply(run_message_queue(NewState)); - -handle_call({notify_down, ChPid}, _From, State) -> - %% we want to do this synchronously, so that auto_deleted queues - %% are no longer visible by the time we send a response to the - %% client. The queue is ultimately deleted in terminate/2; if we - %% return stop with a reply, terminate/2 will be called by - %% gen_server2 *before* the reply is sent. - case handle_ch_down(ChPid, State) of - {ok, NewState} -> reply(ok, NewState); - {stop, NewState} -> {stop, normal, ok, NewState} - end; - -handle_call({basic_get, ChPid, NoAck}, _From, - State = #q{q = #amqqueue{name = QName}, - backing_queue_state = BQS, backing_queue = BQ}) -> - AckRequired = not NoAck, - case BQ:fetch(AckRequired, BQS) of - {empty, BQS1} -> reply(empty, State#q{backing_queue_state = BQS1}); - {{Message, IsDelivered, AckTag, Remaining}, BQS1} -> - case AckRequired of - true -> C = #cr{acktags = ChAckTags} = ch_record(ChPid), - store_ch_record( - C#cr{acktags = sets:add_element(AckTag, ChAckTags)}); - false -> ok - end, - Msg = {QName, self(), AckTag, IsDelivered, Message}, - reply({ok, Remaining, Msg}, State#q{backing_queue_state = BQS1}) - end; - -handle_call({basic_consume, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg}, - _From, State = #q{exclusive_consumer = ExistingHolder}) -> - case check_exclusive_access(ExistingHolder, ExclusiveConsume, - State) of - in_use -> - reply({error, exclusive_consume_unavailable}, State); - ok -> - C = #cr{consumer_count = ConsumerCount} = ch_record(ChPid), - Consumer = #consumer{tag = ConsumerTag, - ack_required = not NoAck}, - store_ch_record(C#cr{consumer_count = ConsumerCount +1, - limiter_pid = LimiterPid}), - ok = case ConsumerCount of - 0 -> rabbit_limiter:register(LimiterPid, self()); - _ -> ok - end, - ExclusiveConsumer = if ExclusiveConsume -> {ChPid, ConsumerTag}; - true -> ExistingHolder - end, - State1 = State#q{has_had_consumers = true, - exclusive_consumer = ExclusiveConsumer}, - ok = maybe_send_reply(ChPid, OkMsg), - State2 = - case is_ch_blocked(C) of - true -> State1#q{ - blocked_consumers = - add_consumer( - ChPid, Consumer, - State1#q.blocked_consumers)}; - false -> run_message_queue( - State1#q{ - active_consumers = - add_consumer( - ChPid, Consumer, - State1#q.active_consumers)}) - end, - reply(ok, State2) - end; - -handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, - State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(ChPid) of - not_found -> - ok = maybe_send_reply(ChPid, OkMsg), - reply(ok, State); - C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> - store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - case ConsumerCount of - 1 -> ok = rabbit_limiter:unregister(LimiterPid, self()); - _ -> ok - end, - ok = maybe_send_reply(ChPid, OkMsg), - NewState = - State#q{exclusive_consumer = cancel_holder(ChPid, - ConsumerTag, - Holder), - active_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.active_consumers), - blocked_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.blocked_consumers)}, - case should_auto_delete(NewState) of - false -> reply(ok, NewState); - true -> {stop, normal, ok, NewState} - end - end; - -handle_call(stat, _From, State = #q{q = #amqqueue{name = Name}, - backing_queue = BQ, - backing_queue_state = BQS, - active_consumers = ActiveConsumers}) -> - reply({ok, Name, BQ:len(BQS), queue:len(ActiveConsumers)}, State); - -handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q{backing_queue_state = BQS, backing_queue = BQ}) -> - IsEmpty = BQ:is_empty(BQS), - IsUnused = is_unused(State), - if - IfEmpty and not(IsEmpty) -> - reply({error, not_empty}, State); - IfUnused and not(IsUnused) -> - reply({error, in_use}, State); - true -> - {stop, normal, {ok, BQ:len(BQS)}, State} - end; - -handle_call(purge, _From, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {Count, BQS1} = BQ:purge(BQS), - reply({ok, Count}, State#q{backing_queue_state = BQS1}); - -handle_call({requeue, AckTags, ChPid}, From, State) -> - gen_server2:reply(From, ok), - case lookup_ch(ChPid) of - not_found -> - rabbit_log:warning("Ignoring requeue from unknown ch: ~p~n", - [ChPid]), - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(requeue_and_run(AckTags, State)) - end; - -handle_call({maybe_run_queue_via_backing_queue, Fun}, _From, State) -> - reply(ok, maybe_run_queue_via_backing_queue(Fun, State)). - -handle_cast({deliver, Txn, Message, ChPid}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - {_Delivered, NewState} = deliver_or_enqueue(Txn, ChPid, Message, State), - noreply(NewState); - -handle_cast({ack, Txn, AckTags, ChPid}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - {C1, BQS1} = - case Txn of - none -> ChAckTags1 = subtract_acks(ChAckTags, AckTags), - {C#cr{acktags = ChAckTags1}, BQ:ack(AckTags, BQS)}; - _ -> {C#cr{txn = Txn}, BQ:tx_ack(Txn, AckTags, BQS)} - end, - store_ch_record(C1), - noreply(State #q { backing_queue_state = BQS1 }) - end; - -handle_cast({rollback, Txn, ChPid}, State) -> - noreply(rollback_transaction(Txn, ChPid, State)); - -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - -handle_cast({notify_sent, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C = #cr{unsent_message_count = Count}) -> - C#cr{unsent_message_count = Count - 1} - end)); - -handle_cast({limit, ChPid, LimiterPid}, State) -> - noreply( - possibly_unblock( - State, ChPid, - fun (C = #cr{consumer_count = ConsumerCount, - limiter_pid = OldLimiterPid, - is_limit_active = Limited}) -> - if ConsumerCount =/= 0 andalso OldLimiterPid == undefined -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, - NewLimited = Limited andalso LimiterPid =/= undefined, - C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({flush, ChPid}, State) -> - ok = rabbit_channel:flushed(ChPid, self()), - noreply(State); - -handle_cast(update_ram_duration, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State#q{rate_timer_ref = just_measured, - backing_queue_state = BQS2}); - -handle_cast({set_ram_duration_target, Duration}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - BQS1 = BQ:set_ram_duration_target(Duration, BQS), - noreply(State#q{backing_queue_state = BQS1}); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State). - -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> - %% Exclusively owned queues must disappear with their owner. In - %% the case of clean shutdown we delete the queue synchronously in - %% the reader - although not required by the spec this seems to - %% match what people expect (see bug 21824). However we need this - %% monitor-and-async- delete in case the connection goes away - %% unexpectedly. - {stop, normal, State}; -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> - case handle_ch_down(DownPid, State) of - {ok, NewState} -> noreply(NewState); - {stop, NewState} -> {stop, normal, NewState} - end; - -handle_info(timeout, State = #q{backing_queue = BQ}) -> - noreply(maybe_run_queue_via_backing_queue( - fun (BQS) -> BQ:sync(BQS) end, State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; - -handle_info(Info, State) -> - ?LOGDEBUG("Info in queue: ~p~n", [Info]), - {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q{backing_queue_state = undefined}) -> - {hibernate, State}; -handle_pre_hibernate(State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - BQS1 = BQ:handle_pre_hibernate(BQS), - %% no activity for a while == 0 egress and ingress rates - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), infinity), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - {hibernate, stop_rate_timer(State#q{backing_queue_state = BQS2})}. diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl deleted file mode 100644 index 432d6290..00000000 --- a/src/rabbit_backing_queue.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_backing_queue). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% Called on startup with a list of durable queue names. The - %% queues aren't being started at this point, but this call - %% allows the backing queue to perform any checking necessary for - %% the consistency of those queues, or initialise any other - %% shared resources. - {start, 1}, - - %% Initialise the backing queue and its state. - {init, 3}, - - %% Called on queue shutdown when queue isn't being deleted. - {terminate, 1}, - - %% Called when the queue is terminating and needs to delete all - %% its content. - {delete_and_terminate, 1}, - - %% Remove all messages in the queue, but not messages which have - %% been fetched and are pending acks. - {purge, 1}, - - %% Publish a message. - {publish, 2}, - - %% Called for messages which have already been passed straight - %% out to a client. The queue will be empty for these calls - %% (i.e. saves the round trip through the backing queue). - {publish_delivered, 3}, - - %% Produce the next message. - {fetch, 2}, - - %% Acktags supplied are for messages which can now be forgotten - %% about. - {ack, 2}, - - %% A publish, but in the context of a transaction. - {tx_publish, 3}, - - %% Acks, but in the context of a transaction. - {tx_ack, 3}, - - %% Undo anything which has been done in the context of the - %% specified transaction. - {tx_rollback, 2}, - - %% Commit a transaction. The Fun passed in must be called once - %% the messages have really been commited. This CPS permits the - %% possibility of commit coalescing. - {tx_commit, 3}, - - %% Reinsert messages into the queue which have already been - %% delivered and were pending acknowledgement. - {requeue, 2}, - - %% How long is my queue? - {len, 1}, - - %% Is my queue empty? - {is_empty, 1}, - - %% For the next three functions, the assumption is that you're - %% monitoring something like the ingress and egress rates of the - %% queue. The RAM duration is thus the length of time represented - %% by the messages held in RAM given the current rates. If you - %% want to ignore all of this stuff, then do so, and return 0 in - %% ram_duration/1. - - %% The target is to have no more messages in RAM than indicated - %% by the duration and the current queue rates. - {set_ram_duration_target, 2}, - - %% Optionally recalculate the duration internally (likely to be - %% just update your internal rates), and report how many seconds - %% the messages in RAM represent given the current rates of the - %% queue. - {ram_duration, 1}, - - %% Should 'sync' be called as soon as the queue process can - %% manage (either on an empty mailbox, or when a timer fires)? - {needs_sync, 1}, - - %% Called (eventually) after needs_sync returns 'true'. Note this - %% may be called more than once for each 'true' returned from - %% needs_sync. - {sync, 1}, - - %% Called immediately before the queue hibernates. - {handle_pre_hibernate, 1}, - - %% Exists for debugging purposes, to be able to expose state via - %% rabbitmqctl list_queues backing_queue_status - {status, 1} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_binary_generator.erl b/src/rabbit_binary_generator.erl deleted file mode 100644 index 04251d11..00000000 --- a/src/rabbit_binary_generator.erl +++ /dev/null @@ -1,294 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_binary_generator). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - -% EMPTY_CONTENT_BODY_FRAME_SIZE, 8 = 1 + 2 + 4 + 1 -% - 1 byte of frame type -% - 2 bytes of channel number -% - 4 bytes of frame payload length -% - 1 byte of payload trailer FRAME_END byte -% See definition of check_empty_content_body_frame_size/0, an assertion called at startup. --define(EMPTY_CONTENT_BODY_FRAME_SIZE, 8). - --export([build_simple_method_frame/3, - build_simple_content_frames/3, - build_heartbeat_frame/0]). --export([generate_table/1, encode_properties/2]). --export([check_empty_content_body_frame_size/0]). --export([ensure_content_encoded/1, clear_encoded_content/1]). - --import(lists). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame() :: [binary()]). - --spec(build_simple_method_frame/3 :: - (channel_number(), amqp_method_record(), protocol()) -> frame()). --spec(build_simple_content_frames/3 :: - (channel_number(), content(), non_neg_integer()) -> [frame()]). --spec(build_heartbeat_frame/0 :: () -> frame()). --spec(generate_table/1 :: (amqp_table()) -> binary()). --spec(encode_properties/2 :: ([amqp_property_type()], [any()]) -> binary()). --spec(check_empty_content_body_frame_size/0 :: () -> 'ok'). --spec(ensure_content_encoded/1 :: (content()) -> encoded_content()). --spec(clear_encoded_content/1 :: (content()) -> unencoded_content()). - --endif. - -%%---------------------------------------------------------------------------- - -build_simple_method_frame(ChannelInt, MethodRecord, Protocol) -> - MethodFields = rabbit_framing:encode_method_fields(MethodRecord, Protocol), - MethodName = rabbit_misc:method_record_type(MethodRecord), - {ClassId, MethodId} = rabbit_framing:method_id(MethodName, Protocol), - create_frame(1, ChannelInt, [<>, MethodFields]). - -build_simple_content_frames(ChannelInt, - #content{class_id = ClassId, - properties = ContentProperties, - properties_bin = ContentPropertiesBin, - payload_fragments_rev = PayloadFragmentsRev}, - FrameMax) -> - {BodySize, ContentFrames} = build_content_frames(PayloadFragmentsRev, FrameMax, ChannelInt), - HeaderFrame = create_frame(2, ChannelInt, - [<>, - maybe_encode_properties(ContentProperties, ContentPropertiesBin)]), - [HeaderFrame | ContentFrames]. - -maybe_encode_properties(_ContentProperties, ContentPropertiesBin) - when is_binary(ContentPropertiesBin) -> - ContentPropertiesBin; -maybe_encode_properties(ContentProperties, none) -> - rabbit_framing:encode_properties(ContentProperties). - -build_content_frames(FragsRev, FrameMax, ChannelInt) -> - BodyPayloadMax = if FrameMax == 0 -> - iolist_size(FragsRev); - true -> - FrameMax - ?EMPTY_CONTENT_BODY_FRAME_SIZE - end, - build_content_frames(0, [], BodyPayloadMax, [], - lists:reverse(FragsRev), BodyPayloadMax, ChannelInt). - -build_content_frames(SizeAcc, FramesAcc, _FragSizeRem, [], - [], _BodyPayloadMax, _ChannelInt) -> - {SizeAcc, lists:reverse(FramesAcc)}; -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - Frags, BodyPayloadMax, ChannelInt) - when FragSizeRem == 0 orelse Frags == [] -> - Frame = create_frame(3, ChannelInt, lists:reverse(FragAcc)), - FrameSize = BodyPayloadMax - FragSizeRem, - build_content_frames(SizeAcc + FrameSize, [Frame | FramesAcc], - BodyPayloadMax, [], Frags, BodyPayloadMax, ChannelInt); -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - [Frag | Frags], BodyPayloadMax, ChannelInt) -> - Size = size(Frag), - {NewFragSizeRem, NewFragAcc, NewFrags} = - if Size == 0 -> {FragSizeRem, FragAcc, Frags}; - Size =< FragSizeRem -> {FragSizeRem - Size, [Frag | FragAcc], Frags}; - true -> <> = - Frag, - {0, [Head | FragAcc], [Tail | Frags]} - end, - build_content_frames(SizeAcc, FramesAcc, NewFragSizeRem, NewFragAcc, - NewFrags, BodyPayloadMax, ChannelInt). - -build_heartbeat_frame() -> - create_frame(?FRAME_HEARTBEAT, 0, <<>>). - -create_frame(TypeInt, ChannelInt, PayloadBin) when is_binary(PayloadBin) -> - [<>, PayloadBin, <>]; -create_frame(TypeInt, ChannelInt, Payload) -> - create_frame(TypeInt, ChannelInt, list_to_binary(Payload)). - -%% table_field_to_binary supports the AMQP 0-8/0-9 standard types, S, -%% I, D, T and F, as well as the QPid extensions b, d, f, l, s, t, x, -%% and V. - -table_field_to_binary({FName, Type, Value}) -> - [short_string_to_binary(FName) | field_value_to_binary(Type, Value)]. - -field_value_to_binary(longstr, Value) -> - ["S", long_string_to_binary(Value)]; - -field_value_to_binary(signedint, Value) -> - ["I", <>]; - -field_value_to_binary(decimal, {Before, After}) -> - ["D", Before, <>]; - -field_value_to_binary(timestamp, Value) -> - ["T", <>]; - -field_value_to_binary(table, Value) -> - ["F", table_to_binary(Value)]; - -field_value_to_binary(array, Value) -> - ["A", array_to_binary(Value)]; - -field_value_to_binary(byte, Value) -> - ["b", <>]; - -field_value_to_binary(double, Value) -> - ["d", <>]; - -field_value_to_binary(float, Value) -> - ["f", <>]; - -field_value_to_binary(long, Value) -> - ["l", <>]; - -field_value_to_binary(short, Value) -> - ["s", <>]; - -field_value_to_binary(bool, Value) -> - ["t", if Value -> 1; true -> 0 end]; - -field_value_to_binary(binary, Value) -> - ["x", long_string_to_binary(Value)]; - -field_value_to_binary(void, _Value) -> - ["V"]. - -table_to_binary(Table) when is_list(Table) -> - BinTable = generate_table(Table), - [<<(size(BinTable)):32>>, BinTable]. - -array_to_binary(Array) when is_list(Array) -> - BinArray = generate_array(Array), - [<<(size(BinArray)):32>>, BinArray]. - -generate_table(Table) when is_list(Table) -> - list_to_binary(lists:map(fun table_field_to_binary/1, Table)). - -generate_array(Array) when is_list(Array) -> - list_to_binary(lists:map( - fun ({Type, Value}) -> field_value_to_binary(Type, Value) end, - Array)). - -short_string_to_binary(String) when is_binary(String) -> - Len = size(String), - if Len < 256 -> [<<(size(String)):8>>, String]; - true -> exit(content_properties_shortstr_overflow) - end; -short_string_to_binary(String) -> - StringLength = length(String), - if StringLength < 256 -> [<>, String]; - true -> exit(content_properties_shortstr_overflow) - end. - -long_string_to_binary(String) when is_binary(String) -> - [<<(size(String)):32>>, String]; -long_string_to_binary(String) -> - [<<(length(String)):32>>, String]. - -encode_properties([], []) -> - <<0, 0>>; -encode_properties(TypeList, ValueList) -> - encode_properties(0, TypeList, ValueList, 0, [], []). - -encode_properties(_Bit, [], [], FirstShortAcc, FlagsAcc, PropsAcc) -> - list_to_binary([lists:reverse(FlagsAcc), <>, lists:reverse(PropsAcc)]); -encode_properties(_Bit, [], _ValueList, _FirstShortAcc, _FlagsAcc, _PropsAcc) -> - exit(content_properties_values_overflow); -encode_properties(15, TypeList, ValueList, FirstShortAcc, FlagsAcc, PropsAcc) -> - NewFlagsShort = FirstShortAcc bor 1, % set the continuation low bit - encode_properties(0, TypeList, ValueList, 0, [<> | FlagsAcc], PropsAcc); -encode_properties(Bit, [bit | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - true -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), FlagsAcc, PropsAcc); - false -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - Other -> exit({content_properties_illegal_bit_value, Other}) - end; -encode_properties(Bit, [T | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - undefined -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - _ -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), - FlagsAcc, - [encode_property(T, Value) | PropsAcc]) - end. - -encode_property(shortstr, String) -> - Len = size(String), - if Len < 256 -> <>; - true -> exit(content_properties_shortstr_overflow) - end; -encode_property(longstr, String) -> - Len = size(String), <>; -encode_property(octet, Int) -> - <>; -encode_property(shortint, Int) -> - <>; -encode_property(longint, Int) -> - <>; -encode_property(longlongint, Int) -> - <>; -encode_property(timestamp, Int) -> - <>; -encode_property(table, Table) -> - table_to_binary(Table). - -check_empty_content_body_frame_size() -> - %% Intended to ensure that EMPTY_CONTENT_BODY_FRAME_SIZE is - %% defined correctly. - ComputedSize = size(list_to_binary(create_frame(?FRAME_BODY, 0, <<>>))), - if ComputedSize == ?EMPTY_CONTENT_BODY_FRAME_SIZE -> - ok; - true -> - exit({incorrect_empty_content_body_frame_size, - ComputedSize, ?EMPTY_CONTENT_BODY_FRAME_SIZE}) - end. - -ensure_content_encoded(Content = #content{properties_bin = PropsBin}) - when PropsBin =/= 'none' -> - Content; -ensure_content_encoded(Content = #content{properties = Props}) -> - Content #content{properties_bin = rabbit_framing:encode_properties(Props)}. - -clear_encoded_content(Content = #content{properties_bin = none}) -> - Content; -clear_encoded_content(Content = #content{properties = none}) -> - %% Only clear when we can rebuild the properties_bin later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_encoded_content(Content = #content{}) -> - Content#content{properties_bin = none}. diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl deleted file mode 100644 index ffd9c51a..00000000 --- a/src/rabbit_channel.erl +++ /dev/null @@ -1,1176 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_channel). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/6, do/2, do/3, shutdown/1]). --export([send_command/2, deliver/4, conserve_memory/2, flushed/2]). --export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). - --export([flow_timeout/2]). - --export([init/1, terminate/2, code_change/3, - handle_call/3, handle_cast/2, handle_info/2, handle_pre_hibernate/1]). - --record(ch, {state, channel, reader_pid, writer_pid, limiter_pid, - transaction_id, tx_participants, next_tag, - uncommitted_ack_q, unacked_message_q, - username, virtual_host, most_recently_declared_queue, - consumer_mapping, blocking, queue_collector_pid, flow}). - --record(flow, {server, client, pending}). - --define(MAX_PERMISSION_CACHE_SIZE, 12). --define(FLOW_OK_TIMEOUT, 10000). %% 10 seconds - --define(INFO_KEYS, - [pid, - connection, - number, - user, - vhost, - transactional, - consumer_count, - messages_unacknowledged, - acks_uncommitted, - prefetch_count]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(ref() :: any()). - --spec(start_link/6 :: - (channel_number(), pid(), pid(), username(), vhost(), pid()) -> pid()). --spec(do/2 :: (pid(), amqp_method_record()) -> 'ok'). --spec(do/3 :: (pid(), amqp_method_record(), maybe(content())) -> 'ok'). --spec(shutdown/1 :: (pid()) -> 'ok'). --spec(send_command/2 :: (pid(), amqp_method()) -> 'ok'). --spec(deliver/4 :: (pid(), ctag(), boolean(), qmsg()) -> 'ok'). --spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok'). --spec(flushed/2 :: (pid(), pid()) -> 'ok'). --spec(flow_timeout/2 :: (pid(), ref()) -> 'ok'). --spec(list/0 :: () -> [pid()]). --spec(info_keys/0 :: () -> [info_key()]). --spec(info/1 :: (pid()) -> [info()]). --spec(info/2 :: (pid(), [info_key()]) -> [info()]). --spec(info_all/0 :: () -> [[info()]]). --spec(info_all/1 :: ([info_key()]) -> [[info()]]). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Channel, ReaderPid, WriterPid, Username, VHost, CollectorPid) -> - {ok, Pid} = gen_server2:start_link( - ?MODULE, [Channel, ReaderPid, WriterPid, - Username, VHost, CollectorPid], []), - Pid. - -do(Pid, Method) -> - do(Pid, Method, none). - -do(Pid, Method, Content) -> - gen_server2:cast(Pid, {method, Method, Content}). - -shutdown(Pid) -> - gen_server2:cast(Pid, terminate). - -send_command(Pid, Msg) -> - gen_server2:cast(Pid, {command, Msg}). - -deliver(Pid, ConsumerTag, AckRequired, Msg) -> - gen_server2:cast(Pid, {deliver, ConsumerTag, AckRequired, Msg}). - -conserve_memory(Pid, Conserve) -> - gen_server2:pcast(Pid, 8, {conserve_memory, Conserve}). - -flushed(Pid, QPid) -> - gen_server2:cast(Pid, {flushed, QPid}). - -flow_timeout(Pid, Ref) -> - gen_server2:pcast(Pid, 7, {flow_timeout, Ref}). - -list() -> - pg_local:get_members(rabbit_channels). - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server2:pcall(Pid, 9, info, infinity). - -info(Pid, Items) -> - case gen_server2:pcall(Pid, 9, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all() -> - rabbit_misc:filter_exit_map(fun (C) -> info(C) end, list()). - -info_all(Items) -> - rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). - -%%--------------------------------------------------------------------------- - -init([Channel, ReaderPid, WriterPid, Username, VHost, CollectorPid]) -> - process_flag(trap_exit, true), - link(WriterPid), - ok = pg_local:join(rabbit_channels, self()), - {ok, #ch{state = starting, - channel = Channel, - reader_pid = ReaderPid, - writer_pid = WriterPid, - limiter_pid = undefined, - transaction_id = none, - tx_participants = sets:new(), - next_tag = 1, - uncommitted_ack_q = queue:new(), - unacked_message_q = queue:new(), - username = Username, - virtual_host = VHost, - most_recently_declared_queue = <<>>, - consumer_mapping = dict:new(), - blocking = dict:new(), - queue_collector_pid = CollectorPid, - flow = #flow{server = true, client = true, - pending = none}}, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(_Request, _From, State) -> - noreply(State). - -handle_cast({method, Method, Content}, State) -> - try handle_method(Method, Content, State) of - {reply, Reply, NewState} -> - ok = rabbit_writer:send_command(NewState#ch.writer_pid, Reply), - noreply(NewState); - {noreply, NewState} -> - noreply(NewState); - stop -> - {stop, normal, State#ch{state = terminating}} - catch - exit:Reason = #amqp_error{} -> - MethodName = rabbit_misc:method_record_type(Method), - {stop, normal, terminating(Reason#amqp_error{method = MethodName}, - State)}; - exit:normal -> - {stop, normal, State}; - _:Reason -> - {stop, {Reason, erlang:get_stacktrace()}, State} - end; - -handle_cast({flushed, QPid}, State) -> - {noreply, queue_blocked(QPid, State)}; - -handle_cast(terminate, State) -> - {stop, normal, State}; - -handle_cast({command, Msg}, State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(State); - -handle_cast({deliver, ConsumerTag, AckRequired, Msg}, - State = #ch{writer_pid = WriterPid, - next_tag = DeliveryTag}) -> - State1 = lock_message(AckRequired, {DeliveryTag, ConsumerTag, Msg}, State), - ok = internal_deliver(WriterPid, true, ConsumerTag, DeliveryTag, Msg), - noreply(State1#ch{next_tag = DeliveryTag + 1}); - -handle_cast({conserve_memory, true}, State = #ch{state = starting}) -> - noreply(State); -handle_cast({conserve_memory, false}, State = #ch{state = starting}) -> - ok = rabbit_writer:send_command(State#ch.writer_pid, #'channel.open_ok'{}), - noreply(State#ch{state = running}); -handle_cast({conserve_memory, Conserve}, State = #ch{state = running}) -> - flow_control(not Conserve, State); -handle_cast({conserve_memory, _Conserve}, State) -> - noreply(State); - -handle_cast({flow_timeout, Ref}, - State = #ch{flow = #flow{client = Flow, pending = {Ref, _TRef}}}) -> - {stop, normal, terminating( - rabbit_misc:amqp_error( - precondition_failed, - "timeout waiting for channel.flow_ok{active=~w}", - [not Flow], none), State)}; -handle_cast({flow_timeout, _Ref}, State) -> - {noreply, State}. - -handle_info({'EXIT', WriterPid, Reason = {writer, send_failed, _Error}}, - State = #ch{writer_pid = WriterPid}) -> - State#ch.reader_pid ! {channel_exit, State#ch.channel, Reason}, - {stop, normal, State}; -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; -handle_info({'DOWN', _MRef, process, QPid, _Reason}, State) -> - {noreply, queue_blocked(QPid, State)}. - -handle_pre_hibernate(State) -> - ok = clear_permission_cache(), - {hibernate, State}. - -terminate(_Reason, State = #ch{state = terminating}) -> - terminate(State); - -terminate(Reason, State) -> - Res = rollback_and_notify(State), - case Reason of - normal -> ok = Res; - _ -> ok - end, - terminate(State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%--------------------------------------------------------------------------- - -reply(Reply, NewState) -> {reply, Reply, NewState, hibernate}. - -noreply(NewState) -> {noreply, NewState, hibernate}. - -return_ok(State, true, _Msg) -> {noreply, State}; -return_ok(State, false, Msg) -> {reply, Msg, State}. - -ok_msg(true, _Msg) -> undefined; -ok_msg(false, Msg) -> Msg. - -terminating(Reason, State = #ch{channel = Channel, reader_pid = Reader}) -> - ok = rollback_and_notify(State), - Reader ! {channel_exit, Channel, Reason}, - State#ch{state = terminating}. - -return_queue_declare_ok(#resource{name = ActualName}, - NoWait, MessageCount, ConsumerCount, State) -> - NewState = State#ch{most_recently_declared_queue = ActualName}, - case NoWait of - true -> {noreply, NewState}; - false -> Reply = #'queue.declare_ok'{queue = ActualName, - message_count = MessageCount, - consumer_count = ConsumerCount}, - {reply, Reply, NewState} - end. - -check_resource_access(Username, Resource, Perm) -> - V = {Resource, Perm}, - Cache = case get(permission_cache) of - undefined -> []; - Other -> Other - end, - CacheTail = - case lists:member(V, Cache) of - true -> lists:delete(V, Cache); - false -> ok = rabbit_access_control:check_resource_access( - Username, Resource, Perm), - lists:sublist(Cache, ?MAX_PERMISSION_CACHE_SIZE - 1) - end, - put(permission_cache, [V | CacheTail]), - ok. - -clear_permission_cache() -> - erase(permission_cache), - ok. - -check_configure_permitted(Resource, #ch{ username = Username}) -> - check_resource_access(Username, Resource, configure). - -check_write_permitted(Resource, #ch{ username = Username}) -> - check_resource_access(Username, Resource, write). - -check_read_permitted(Resource, #ch{ username = Username}) -> - check_resource_access(Username, Resource, read). - -check_exclusive_access(#amqqueue{exclusive_owner = Owner}, Owner, _MatchType) -> - ok; -check_exclusive_access(#amqqueue{exclusive_owner = none}, _ReaderPid, lax) -> - ok; -check_exclusive_access(#amqqueue{name = QName}, _ReaderPid, _MatchType) -> - rabbit_misc:protocol_error( - resource_locked, - "cannot obtain exclusive access to locked ~s", [rabbit_misc:rs(QName)]). - -with_exclusive_access_or_die(QName, ReaderPid, F) -> - rabbit_amqqueue:with_or_die( - QName, fun (Q) -> check_exclusive_access(Q, ReaderPid, lax), F(Q) end). - -expand_queue_name_shortcut(<<>>, #ch{ most_recently_declared_queue = <<>> }) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_queue_name_shortcut(<<>>, #ch{ virtual_host = VHostPath, - most_recently_declared_queue = MRDQ }) -> - rabbit_misc:r(VHostPath, queue, MRDQ); -expand_queue_name_shortcut(QueueNameBin, #ch{ virtual_host = VHostPath }) -> - rabbit_misc:r(VHostPath, queue, QueueNameBin). - -expand_routing_key_shortcut(<<>>, <<>>, - #ch{ most_recently_declared_queue = <<>> }) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_routing_key_shortcut(<<>>, <<>>, - #ch{ most_recently_declared_queue = MRDQ }) -> - MRDQ; -expand_routing_key_shortcut(_QueueNameBin, RoutingKey, _State) -> - RoutingKey. - -%% check that an exchange/queue name does not contain the reserved -%% "amq." prefix. -%% -%% One, quite reasonable, interpretation of the spec, taken by the -%% QPid M1 Java client, is that the exclusion of "amq." prefixed names -%% only applies on actual creation, and not in the cases where the -%% entity already exists. This is how we use this function in the code -%% below. However, AMQP JIRA 123 changes that in 0-10, and possibly -%% 0-9SP1, making it illegal to attempt to declare an exchange/queue -%% with an amq.* name when passive=false. So this will need -%% revisiting. -%% -%% TODO: enforce other constraints on name. See AMQP JIRA 69. -check_name(Kind, NameBin = <<"amq.", _/binary>>) -> - rabbit_misc:protocol_error( - access_refused, - "~s name '~s' contains reserved prefix 'amq.*'",[Kind, NameBin]); -check_name(_Kind, NameBin) -> - NameBin. - -queue_blocked(QPid, State = #ch{blocking = Blocking}) -> - case dict:find(QPid, Blocking) of - error -> State; - {ok, MRef} -> true = erlang:demonitor(MRef), - Blocking1 = dict:erase(QPid, Blocking), - ok = case dict:size(Blocking1) of - 0 -> rabbit_writer:send_command( - State#ch.writer_pid, - #'channel.flow_ok'{active = false}); - _ -> ok - end, - State#ch{blocking = Blocking1} - end. - -handle_method(#'channel.open'{}, _, State = #ch{state = starting}) -> - case rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}) of - true -> {noreply, State}; - false -> {reply, #'channel.open_ok'{}, State#ch{state = running}} - end; - -handle_method(#'channel.open'{}, _, _State) -> - rabbit_misc:protocol_error( - command_invalid, "second 'channel.open' seen", []); - -handle_method(_Method, _, #ch{state = starting}) -> - rabbit_misc:protocol_error(channel_error, "expected 'channel.open'", []); - -handle_method(#'channel.close'{}, _, State = #ch{writer_pid = WriterPid}) -> - ok = rollback_and_notify(State), - ok = rabbit_writer:send_command(WriterPid, #'channel.close_ok'{}), - stop; - -handle_method(#'basic.publish'{}, _, #ch{flow = #flow{client = false}}) -> - rabbit_misc:protocol_error( - command_invalid, - "basic.publish received after channel.flow_ok{active=false}", []); -handle_method(#'basic.publish'{exchange = ExchangeNameBin, - routing_key = RoutingKey, - mandatory = Mandatory, - immediate = Immediate}, - Content, State = #ch{virtual_host = VHostPath, - transaction_id = TxnKey, - writer_pid = WriterPid}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_write_permitted(ExchangeName, State), - Exchange = rabbit_exchange:lookup_or_die(ExchangeName), - %% We decode the content's properties here because we're almost - %% certain to want to look at delivery-mode and priority. - DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), - IsPersistent = is_message_persistent(DecodedContent), - Message = #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = DecodedContent, - guid = rabbit_guid:guid(), - is_persistent = IsPersistent}, - {RoutingRes, DeliveredQPids} = - rabbit_exchange:publish( - Exchange, - rabbit_basic:delivery(Mandatory, Immediate, TxnKey, Message)), - if - RoutingRes == routed -> ok; - true -> - {_ShouldClose, Code, Text} = rabbit_framing:lookup_amqp_exception(RoutingRes), - ok = basic_return(Message, WriterPid, ?NO_ROUTE, <<"unroutable">>); - ok = basic_return(Message, WriterPid, ?NO_CONSUMERS, <<"not_delivered">>) - end, - {noreply, case TxnKey of - none -> State; - _ -> add_tx_participants(DeliveredQPids, State) - end}; - -handle_method(#'basic.ack'{delivery_tag = DeliveryTag, - multiple = Multiple}, - _, State = #ch{transaction_id = TxnKey, - unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - Participants = ack(TxnKey, Acked), - {noreply, case TxnKey of - none -> ok = notify_limiter(State#ch.limiter_pid, Acked), - State#ch{unacked_message_q = Remaining}; - _ -> NewUAQ = queue:join(State#ch.uncommitted_ack_q, - Acked), - add_tx_participants( - Participants, - State#ch{unacked_message_q = Remaining, - uncommitted_ack_q = NewUAQ}) - end}; - -handle_method(#'basic.get'{queue = QueueNameBin, - no_ack = NoAck}, - _, State = #ch{ writer_pid = WriterPid, - reader_pid = ReaderPid, - next_tag = DeliveryTag }) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - case with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:basic_get(Q, self(), NoAck) end) of - {ok, MessageCount, - Msg = {_QName, _QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = Content}}} -> - State1 = lock_message(not(NoAck), {DeliveryTag, none, Msg}, State), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.get_ok'{delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey, - message_count = MessageCount}, - Content), - {noreply, State1#ch{next_tag = DeliveryTag + 1}}; - empty -> - {reply, #'basic.get_empty'{deprecated_cluster_id = <<>>}, State} - end; - -handle_method(#'basic.consume'{queue = QueueNameBin, - consumer_tag = ConsumerTag, - no_local = _, % FIXME: implement - no_ack = NoAck, - exclusive = ExclusiveConsume, - nowait = NoWait}, - _, State = #ch{ reader_pid = ReaderPid, - limiter_pid = LimiterPid, - consumer_mapping = ConsumerMapping }) -> - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - ActualConsumerTag = - case ConsumerTag of - <<>> -> rabbit_guid:binstring_guid("amq.ctag"); - Other -> Other - end, - - %% We get the queue process to send the consume_ok on our - %% behalf. This is for symmetry with basic.cancel - see - %% the comment in that method for why. - case with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> - rabbit_amqqueue:basic_consume( - Q, NoAck, self(), LimiterPid, - ActualConsumerTag, ExclusiveConsume, - ok_msg(NoWait, #'basic.consume_ok'{ - consumer_tag = ActualConsumerTag})) - end) of - ok -> - {noreply, State#ch{consumer_mapping = - dict:store(ActualConsumerTag, - QueueName, - ConsumerMapping)}}; - {error, exclusive_consume_unavailable} -> - rabbit_misc:protocol_error( - access_refused, "~s in exclusive use", - [rabbit_misc:rs(QueueName)]) - end; - {ok, _} -> - %% Attempted reuse of consumer tag. - rabbit_misc:protocol_error( - not_allowed, "attempt to reuse consumer tag '~s'", [ConsumerTag]) - end; - -handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, - nowait = NoWait}, - _, State = #ch{consumer_mapping = ConsumerMapping }) -> - OkMsg = #'basic.cancel_ok'{consumer_tag = ConsumerTag}, - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - %% Spec requires we ignore this situation. - return_ok(State, NoWait, OkMsg); - {ok, QueueName} -> - NewState = State#ch{consumer_mapping = - dict:erase(ConsumerTag, - ConsumerMapping)}, - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> - %% In order to ensure that no more messages - %% are sent to the consumer after the - %% cancel_ok has been sent, we get the - %% queue process to send the cancel_ok on - %% our behalf. If we were sending the - %% cancel_ok ourselves it might overtake a - %% message sent previously by the queue. - rabbit_amqqueue:basic_cancel( - Q, self(), ConsumerTag, - ok_msg(NoWait, #'basic.cancel_ok'{ - consumer_tag = ConsumerTag})) - end) of - ok -> - {noreply, NewState}; - {error, not_found} -> - %% Spec requires we ignore this situation. - return_ok(NewState, NoWait, OkMsg) - end - end; - -handle_method(#'basic.qos'{global = true}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "global=true", []); - -handle_method(#'basic.qos'{prefetch_size = Size}, _, _State) when Size /= 0 -> - rabbit_misc:protocol_error(not_implemented, - "prefetch_size!=0 (~w)", [Size]); - -handle_method(#'basic.qos'{prefetch_count = PrefetchCount}, - _, State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case {LimiterPid, PrefetchCount} of - {undefined, 0} -> undefined; - {undefined, _} -> start_limiter(State); - {_, _} -> LimiterPid - end, - LimiterPid2 = case rabbit_limiter:limit(LimiterPid1, PrefetchCount) of - ok -> LimiterPid1; - stopped -> unlimit_queues(State) - end, - {reply, #'basic.qos_ok'{}, State#ch{limiter_pid = LimiterPid2}}; - -handle_method(#'basic.recover_async'{requeue = true}, - _, State = #ch{ transaction_id = none, - unacked_message_q = UAMQ }) -> - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - %% The Qpid python test suite incorrectly assumes - %% that messages will be requeued in their original - %% order. To keep it happy we reverse the id list - %% since we are given them in reverse order. - rabbit_amqqueue:requeue( - QPid, lists:reverse(MsgIds), self()) - end, ok, UAMQ), - %% No answer required - basic.recover is the newer, synchronous - %% variant of this method - {noreply, State#ch{unacked_message_q = queue:new()}}; - -handle_method(#'basic.recover_async'{requeue = false}, - _, State = #ch{ transaction_id = none, - writer_pid = WriterPid, - unacked_message_q = UAMQ }) -> - ok = rabbit_misc:queue_fold( - fun ({_DeliveryTag, none, _Msg}, ok) -> - %% Was sent as a basic.get_ok. Don't redeliver - %% it. FIXME: appropriate? - ok; - ({DeliveryTag, ConsumerTag, - {QName, QPid, MsgId, _Redelivered, Message}}, ok) -> - %% Was sent as a proper consumer delivery. Resend - %% it as before. - %% - %% FIXME: What should happen if the consumer's been - %% cancelled since? - %% - %% FIXME: should we allocate a fresh DeliveryTag? - internal_deliver( - WriterPid, false, ConsumerTag, DeliveryTag, - {QName, QPid, MsgId, true, Message}) - end, ok, UAMQ), - %% No answer required - basic.recover is the newer, synchronous - %% variant of this method - {noreply, State}; - -handle_method(#'basic.recover_async'{}, _, _State) -> - rabbit_misc:protocol_error( - not_allowed, "attempt to recover a transactional channel",[]); - -handle_method(#'basic.recover'{requeue = Requeue}, Content, State) -> - {noreply, State2 = #ch{writer_pid = WriterPid}} = - handle_method(#'basic.recover_async'{requeue = Requeue}, - Content, - State), - ok = rabbit_writer:send_command(WriterPid, #'basic.recover_ok'{}), - {noreply, State2}; - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - type = TypeNameBin, - passive = false, - durable = Durable, - deprecated_auto_delete = false, %% 0-9-1: true not supported - deprecated_internal = false, %% 0-9-1: true not supported - nowait = NoWait, - arguments = Args}, - _, State = #ch{ virtual_host = VHostPath }) -> - CheckedType = rabbit_exchange:check_type(TypeNameBin), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), - X = case rabbit_exchange:lookup(ExchangeName) of - {ok, FoundX} -> FoundX; - {error, not_found} -> - check_name('exchange', ExchangeNameBin), - case rabbit_misc:r_arg(VHostPath, exchange, Args, - <<"alternate-exchange">>) of - undefined -> ok; - AName -> check_read_permitted(ExchangeName, State), - check_write_permitted(AName, State), - ok - end, - rabbit_exchange:declare(ExchangeName, - CheckedType, - Durable, - Args) - end, - ok = rabbit_exchange:assert_equivalence(X, CheckedType, Durable, Args), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{ virtual_host = VHostPath }) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), - _ = rabbit_exchange:lookup_or_die(ExchangeName), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.delete'{exchange = ExchangeNameBin, - if_unused = IfUnused, - nowait = NoWait}, - _, State = #ch { virtual_host = VHostPath }) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), - case rabbit_exchange:delete(ExchangeName, IfUnused) of - {error, not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(ExchangeName)]); - ok -> - return_ok(State, NoWait, #'exchange.delete_ok'{}) - end; - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = false, - durable = Durable, - exclusive = ExclusiveDeclare, - auto_delete = AutoDelete, - nowait = NoWait, - arguments = Args} = Declare, - _, State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid, - queue_collector_pid = CollectorPid}) -> - Owner = case ExclusiveDeclare of - true -> ReaderPid; - false -> none - end, -<<<<<<< local - %% We use this in both branches, because queue_declare may yet return an - %% existing queue. - Finish = fun (#amqqueue{name = QueueName, - durable = Durable1, - auto_delete = AutoDelete1} = Q) - when Durable =:= Durable1, AutoDelete =:= AutoDelete1 -> - check_exclusive_access(Q, Owner, strict), - check_configure_permitted(QueueName, State), - %% We need to notify the reader within the channel - %% process so that we can be sure there are no - %% outstanding exclusive queues being declared as the - %% connection shuts down. - case Owner of - none -> ok; - _ -> ok = rabbit_reader_queue_collector:register_exclusive_queue(CollectorPid, Q) - end, - Q; - %% non-equivalence trumps exclusivity arbitrarily - (#amqqueue{name = QueueName}) -> - rabbit_misc:protocol_error( - channel_error, - "parameters for ~s not equivalent", - [rabbit_misc:rs(QueueName)]) - end, - Q = case rabbit_amqqueue:with( - rabbit_misc:r(VHostPath, queue, QueueNameBin), - Finish) of - {error, not_found} -> - ActualNameBin = - case QueueNameBin of -======= - ActualNameBin = case QueueNameBin of ->>>>>>> other - <<>> -> rabbit_guid:binstring_guid("amq.gen"); - Other -> check_name('queue', Other) - end, -<<<<<<< local - QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), - Finish(rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, - Args, Owner)); - #amqqueue{} = Other -> - Other - end, - return_queue_declare_ok(State, NoWait, Q); -======= - QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with(QueueName, - fun (Q) -> {rabbit_amqqueue:stat(Q), Q} end) of - {{ok, QueueName, MessageCount, ConsumerCount}, - #amqqueue{durable = Durable1, auto_delete = AutoDelete1} = Q} - when Durable =:= Durable1, AutoDelete =:= AutoDelete1 -> - check_exclusive_access(Q, Owner, strict), - return_queue_declare_ok(QueueName, NoWait, MessageCount, - ConsumerCount, State); - {{ok, QueueName, _MessageCount, _ConsumerCount}, #amqqueue{}} -> - rabbit_misc:protocol_error( - precondition_failed, "parameters for ~s not equivalent", - [rabbit_misc:rs(QueueName)]); - {error, not_found} -> - case rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, - Args, Owner) of - {new, Q = #amqqueue{}} -> - %% We need to notify the reader within the channel - %% process so that we can be sure there are no - %% outstanding exclusive queues being declared as - %% the connection shuts down. - ok = case Owner of - none -> ok; - _ -> rabbit_reader_queue_collector:register_exclusive_queue(CollectorPid, Q) - end, - return_queue_declare_ok(QueueName, NoWait, 0, 0, State); - {existing, _Q} -> - %% must have been created between the stat and the - %% declare. Loop around again. - handle_method(Declare, none, State) - end - end; ->>>>>>> other - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid}) -> - QueueName = rabbit_misc:r(VHostPath, queue, QueueNameBin), - check_configure_permitted(QueueName, State), - {{ok, QueueName, MessageCount, ConsumerCount}, #amqqueue{} = Q} = - rabbit_amqqueue:with_or_die( - QueueName, fun (Q) -> {rabbit_amqqueue:stat(Q), Q} end), - check_exclusive_access(Q, ReaderPid, lax), - return_queue_declare_ok(QueueName, NoWait, MessageCount, ConsumerCount, - State); - -handle_method(#'queue.delete'{queue = QueueNameBin, - if_unused = IfUnused, - if_empty = IfEmpty, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_configure_permitted(QueueName, State), - case with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:delete(Q, IfUnused, IfEmpty) end) of - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(QueueName)]); - {error, not_empty} -> - rabbit_misc:protocol_error( - precondition_failed, "~s not empty", [rabbit_misc:rs(QueueName)]); - {ok, PurgedMessageCount} -> - return_ok(State, NoWait, - #'queue.delete_ok'{message_count = PurgedMessageCount}) - end; - -handle_method(#'queue.bind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_exchange:add_binding/5, ExchangeNameBin, - QueueNameBin, RoutingKey, Arguments, #'queue.bind_ok'{}, - NoWait, State); - -handle_method(#'queue.unbind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_exchange:delete_binding/5, ExchangeNameBin, - QueueNameBin, RoutingKey, Arguments, #'queue.unbind_ok'{}, - false, State); - -handle_method(#'queue.purge'{queue = QueueNameBin, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - {ok, PurgedMessageCount} = with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:purge(Q) end), - return_ok(State, NoWait, - #'queue.purge_ok'{message_count = PurgedMessageCount}); - -handle_method(#'tx.select'{}, _, State = #ch{transaction_id = none}) -> - {reply, #'tx.select_ok'{}, new_tx(State)}; - -handle_method(#'tx.select'{}, _, State) -> - {reply, #'tx.select_ok'{}, State}; - -handle_method(#'tx.commit'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.commit'{}, _, State) -> - {reply, #'tx.commit_ok'{}, internal_commit(State)}; - -handle_method(#'tx.rollback'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.rollback'{}, _, State) -> - {reply, #'tx.rollback_ok'{}, internal_rollback(State)}; - -handle_method(#'channel.flow'{active = true}, _, - State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case rabbit_limiter:unblock(LimiterPid) of - ok -> LimiterPid; - stopped -> unlimit_queues(State) - end, - {reply, #'channel.flow_ok'{active = true}, - State#ch{limiter_pid = LimiterPid1}}; -handle_method(#'channel.flow'{active = false}, _, - State = #ch{limiter_pid = LimiterPid, - consumer_mapping = Consumers}) -> - LimiterPid1 = case LimiterPid of - undefined -> start_limiter(State); - Other -> Other - end, - ok = rabbit_limiter:block(LimiterPid1), - QPids = consumer_queues(Consumers), - Queues = [{QPid, erlang:monitor(process, QPid)} || QPid <- QPids], - ok = rabbit_amqqueue:flush_all(QPids, self()), - case Queues of - [] -> {reply, #'channel.flow_ok'{active = false}, State}; - _ -> {noreply, State#ch{limiter_pid = LimiterPid1, - blocking = dict:from_list(Queues)}} - end; - -handle_method(#'channel.flow_ok'{active = Active}, _, - State = #ch{flow = #flow{server = Active, client = Flow, - pending = {_Ref, TRef}} = F}) - when Flow =:= not Active -> - {ok, cancel} = timer:cancel(TRef), - {noreply, State#ch{flow = F#flow{client = Active, pending = none}}}; -handle_method(#'channel.flow_ok'{active = Active}, _, - State = #ch{flow = #flow{server = Flow, client = Flow, - pending = {_Ref, TRef}}}) - when Flow =:= not Active -> - {ok, cancel} = timer:cancel(TRef), - {noreply, issue_flow(Flow, State)}; -handle_method(#'channel.flow_ok'{}, _, #ch{flow = #flow{pending = none}}) -> - rabbit_misc:protocol_error( - command_invalid, "unsolicited channel.flow_ok", []); -handle_method(#'channel.flow_ok'{active = Active}, _, _State) -> - rabbit_misc:protocol_error( - command_invalid, - "received channel.flow_ok{active=~w} has incorrect polarity", [Active]); - -handle_method(_MethodRecord, _Content, _State) -> - rabbit_misc:protocol_error( - command_invalid, "unimplemented method", []). - -%%---------------------------------------------------------------------------- - -flow_control(Active, State = #ch{flow = #flow{server = Flow, pending = none}}) - when Flow =:= not Active -> - ok = clear_permission_cache(), - noreply(issue_flow(Active, State)); -flow_control(Active, State = #ch{flow = F}) -> - noreply(State#ch{flow = F#flow{server = Active}}). - -issue_flow(Active, State) -> - ok = rabbit_writer:send_command( - State#ch.writer_pid, #'channel.flow'{active = Active}), - Ref = make_ref(), - {ok, TRef} = timer:apply_after(?FLOW_OK_TIMEOUT, ?MODULE, flow_timeout, - [self(), Ref]), - State#ch{flow = #flow{server = Active, client = not Active, - pending = {Ref, TRef}}}. - -binding_action(Fun, ExchangeNameBin, QueueNameBin, RoutingKey, Arguments, - ReturnMethod, NoWait, - State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid}) -> - %% FIXME: connection exception (!) on failure?? - %% (see rule named "failure" in spec-XML) - %% FIXME: don't allow binding to internal exchanges - - %% including the one named "" ! - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_write_permitted(QueueName, State), - ActualRoutingKey = expand_routing_key_shortcut(QueueNameBin, RoutingKey, - State), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_read_permitted(ExchangeName, State), - case Fun(ExchangeName, QueueName, ActualRoutingKey, Arguments, - fun (_X, Q) -> check_exclusive_access(Q, ReaderPid, lax) end) of - {error, exchange_not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, queue_not_found} -> - rabbit_misc:not_found(QueueName); - {error, exchange_and_queue_not_found} -> - rabbit_misc:protocol_error( - not_found, "no ~s and no ~s", [rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(QueueName)]); - {error, binding_not_found} -> - rabbit_misc:protocol_error( - not_found, "no binding ~s between ~s and ~s", - [RoutingKey, rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(QueueName)]); - ok -> return_ok(State, NoWait, ReturnMethod) - end. - -basic_return(#basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = Content}, - WriterPid, ReplyCode, ReplyText) -> - ok = rabbit_writer:send_command( - WriterPid, - #'basic.return'{reply_code = ReplyCode, - reply_text = ReplyText, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - Content). - -collect_acks(Q, 0, true) -> - {Q, queue:new()}; -collect_acks(Q, DeliveryTag, Multiple) -> - collect_acks(queue:new(), queue:new(), Q, DeliveryTag, Multiple). - -collect_acks(ToAcc, PrefixAcc, Q, DeliveryTag, Multiple) -> - case queue:out(Q) of - {{value, UnackedMsg = {CurrentDeliveryTag, _ConsumerTag, _Msg}}, - QTail} -> - if CurrentDeliveryTag == DeliveryTag -> - {queue:in(UnackedMsg, ToAcc), queue:join(PrefixAcc, QTail)}; - Multiple -> - collect_acks(queue:in(UnackedMsg, ToAcc), PrefixAcc, - QTail, DeliveryTag, Multiple); - true -> - collect_acks(ToAcc, queue:in(UnackedMsg, PrefixAcc), - QTail, DeliveryTag, Multiple) - end; - {empty, _} -> - rabbit_misc:protocol_error( - not_found, "unknown delivery tag ~w", [DeliveryTag]) - end. - -add_tx_participants(MoreP, State = #ch{tx_participants = Participants}) -> - State#ch{tx_participants = sets:union(Participants, - sets:from_list(MoreP))}. - -ack(TxnKey, UAQ) -> - fold_per_queue( - fun (QPid, MsgIds, L) -> - ok = rabbit_amqqueue:ack(QPid, TxnKey, MsgIds, self()), - [QPid | L] - end, [], UAQ). - -make_tx_id() -> rabbit_guid:guid(). - -new_tx(State) -> - State#ch{transaction_id = make_tx_id(), - tx_participants = sets:new(), - uncommitted_ack_q = queue:new()}. - -internal_commit(State = #ch{transaction_id = TxnKey, - tx_participants = Participants}) -> - case rabbit_amqqueue:commit_all(sets:to_list(Participants), - TxnKey, self()) of - ok -> ok = notify_limiter(State#ch.limiter_pid, - State#ch.uncommitted_ack_q), - new_tx(State); - {error, Errors} -> rabbit_misc:protocol_error( - internal_error, "commit failed: ~w", [Errors]) - end. - -internal_rollback(State = #ch{transaction_id = TxnKey, - tx_participants = Participants, - uncommitted_ack_q = UAQ, - unacked_message_q = UAMQ}) -> - ?LOGDEBUG("rollback ~p~n - ~p acks uncommitted, ~p messages unacked~n", - [self(), - queue:len(UAQ), - queue:len(UAMQ)]), - ok = rabbit_amqqueue:rollback_all(sets:to_list(Participants), - TxnKey, self()), - NewUAMQ = queue:join(UAQ, UAMQ), - new_tx(State#ch{unacked_message_q = NewUAMQ}). - -rollback_and_notify(State = #ch{transaction_id = none}) -> - notify_queues(State); -rollback_and_notify(State) -> - notify_queues(internal_rollback(State)). - -fold_per_queue(F, Acc0, UAQ) -> - D = rabbit_misc:queue_fold( - fun ({_DTag, _CTag, - {_QName, QPid, MsgId, _Redelivered, _Message}}, D) -> - %% dict:append would avoid the lists:reverse in - %% handle_message({recover, true}, ...). However, it - %% is significantly slower when going beyond a few - %% thousand elements. - rabbit_misc:dict_cons(QPid, MsgId, D) - end, dict:new(), UAQ), - dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, - Acc0, D). - -start_limiter(State = #ch{unacked_message_q = UAMQ}) -> - LPid = rabbit_limiter:start_link(self(), queue:len(UAMQ)), - ok = limit_queues(LPid, State), - LPid. - -notify_queues(#ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:notify_down_all(consumer_queues(Consumers), self()). - -unlimit_queues(State) -> - ok = limit_queues(undefined, State), - undefined. - -limit_queues(LPid, #ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:limit_all(consumer_queues(Consumers), self(), LPid). - -consumer_queues(Consumers) -> - [QPid || QueueName <- - sets:to_list( - dict:fold(fun (_ConsumerTag, QueueName, S) -> - sets:add_element(QueueName, S) - end, sets:new(), Consumers)), - case rabbit_amqqueue:lookup(QueueName) of - {ok, Q} -> QPid = Q#amqqueue.pid, true; - %% queue has been deleted in the meantime - {error, not_found} -> QPid = none, false - end]. - -%% tell the limiter about the number of acks that have been received -%% for messages delivered to subscribed consumers, but not acks for -%% messages sent in a response to a basic.get (identified by their -%% 'none' consumer tag) -notify_limiter(undefined, _Acked) -> - ok; -notify_limiter(LimiterPid, Acked) -> - case rabbit_misc:queue_fold(fun ({_, none, _}, Acc) -> Acc; - ({_, _, _}, Acc) -> Acc + 1 - end, 0, Acked) of - 0 -> ok; - Count -> rabbit_limiter:ack(LimiterPid, Count) - end. - -is_message_persistent(Content) -> - case rabbit_basic:is_message_persistent(Content) of - {invalid, Other} -> - rabbit_log:warning("Unknown delivery mode ~p - " - "treating as 1, non-persistent~n", - [Other]), - false; - IsPersistent when is_boolean(IsPersistent) -> - IsPersistent - end. - -lock_message(true, MsgStruct, State = #ch{unacked_message_q = UAMQ}) -> - State#ch{unacked_message_q = queue:in(MsgStruct, UAMQ)}; -lock_message(false, _MsgStruct, State) -> - State. - -internal_deliver(WriterPid, Notify, ConsumerTag, DeliveryTag, - {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = Content}}) -> - M = #'basic.deliver'{consumer_tag = ConsumerTag, - delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - ok = case Notify of - true -> rabbit_writer:send_command_and_notify( - WriterPid, QPid, self(), M, Content); - false -> rabbit_writer:send_command(WriterPid, M, Content) - end. - -terminate(#ch{writer_pid = WriterPid, limiter_pid = LimiterPid}) -> - pg_local:leave(rabbit_channels, self()), - rabbit_writer:shutdown(WriterPid), - rabbit_limiter:shutdown(LimiterPid). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, _) -> self(); -i(connection, #ch{reader_pid = ReaderPid}) -> ReaderPid; -i(number, #ch{channel = Channel}) -> Channel; -i(user, #ch{username = Username}) -> Username; -i(vhost, #ch{virtual_host = VHost}) -> VHost; -i(transactional, #ch{transaction_id = TxnKey}) -> TxnKey =/= none; -i(consumer_count, #ch{consumer_mapping = ConsumerMapping}) -> - dict:size(ConsumerMapping); -i(messages_unacknowledged, #ch{unacked_message_q = UAMQ, - uncommitted_ack_q = UAQ}) -> - queue:len(UAMQ) + queue:len(UAQ); -i(acks_uncommitted, #ch{uncommitted_ack_q = UAQ}) -> - queue:len(UAQ); -i(prefetch_count, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:get_limit(LimiterPid); -i(Item, _) -> - throw({bad_argument, Item}). diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl deleted file mode 100644 index 042f8284..00000000 --- a/src/rabbit_control.erl +++ /dev/null @@ -1,379 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_control). --include("rabbit.hrl"). - --export([start/0, stop/0, action/4]). - --record(params, {quiet, node, command, args}). - --define(RPC_TIMEOUT, infinity). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(action/4 :: (atom(), erlang_node(), [string()], - fun ((string(), [any()]) -> 'ok')) -> 'ok'). --spec(usage/0 :: () -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), - FullCommand = init:get_plain_arguments(), - #params{quiet = Quiet, node = Node, command = Command, args = Args} = - parse_args(FullCommand, #params{quiet = false, - node = rabbit_misc:makenode(NodeStr)}), - Inform = case Quiet of - true -> fun (_Format, _Args1) -> ok end; - false -> fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end - end, - %% The reason we don't use a try/catch here is that rpc:call turns - %% thrown errors into normal return values - case catch action(Command, Node, Args, Inform) of - ok -> - case Quiet of - true -> ok; - false -> io:format("...done.~n") - end, - halt(); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - error("invalid command '~s'", - [lists:flatten( - rabbit_misc:intersperse( - " ", [atom_to_list(Command) | Args]))]), - usage(); - {error, Reason} -> - error("~p", [Reason]), - halt(2); - {badrpc, {'EXIT', Reason}} -> - error("~p", [Reason]), - halt(2); - {badrpc, Reason} -> - error("unable to connect to node ~w: ~w", [Node, Reason]), - print_badrpc_diagnostics(Node), - halt(2); - Other -> - error("~p", [Other]), - halt(2) - end. - -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - -error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - -print_badrpc_diagnostics(Node) -> - fmt_stderr("diagnostics:", []), - {_NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - case net_adm:names(NodeHost) of - {error, EpmdReason} -> - fmt_stderr("- unable to connect to epmd on ~s: ~w", - [NodeHost, EpmdReason]); - {ok, NamePorts} -> - fmt_stderr("- nodes and their ports on ~s: ~p", - [NodeHost, [{list_to_atom(Name), Port} || - {Name, Port} <- NamePorts]]) - end, - fmt_stderr("- current node: ~w", [node()]), - case init:get_argument(home) of - {ok, [[Home]]} -> fmt_stderr("- current node home dir: ~s", [Home]); - Other -> fmt_stderr("- no current node home dir: ~p", [Other]) - end, - fmt_stderr("- current node cookie hash: ~s", [rabbit_misc:cookie_hash()]), - ok. - -parse_args(["-n", NodeS | Args], Params) -> - parse_args(Args, Params#params{node = rabbit_misc:makenode(NodeS)}); -parse_args(["-q" | Args], Params) -> - parse_args(Args, Params#params{quiet = true}); -parse_args([Command | Args], Params) -> - Params#params{command = list_to_atom(Command), args = Args}; -parse_args([], _) -> - usage(). - -stop() -> - ok. - -usage() -> - io:format("~s", [rabbit_ctl_usage:usage()]), - halt(1). - -action(stop, Node, [], Inform) -> - Inform("Stopping and halting node ~p", [Node]), - call(Node, {rabbit, stop_and_halt, []}); - -action(stop_app, Node, [], Inform) -> - Inform("Stopping node ~p", [Node]), - call(Node, {rabbit, stop, []}); - -action(start_app, Node, [], Inform) -> - Inform("Starting node ~p", [Node]), - call(Node, {rabbit, start, []}); - -action(reset, Node, [], Inform) -> - Inform("Resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, reset, []}); - -action(force_reset, Node, [], Inform) -> - Inform("Forcefully resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, force_reset, []}); - -action(cluster, Node, ClusterNodeSs, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); - -action(status, Node, [], Inform) -> - Inform("Status of node ~p", [Node]), - case call(Node, {rabbit, status, []}) of - {badrpc, _} = Res -> Res; - Res -> io:format("~p~n", [Res]), - ok - end; - -action(rotate_logs, Node, [], Inform) -> - Inform("Reopening logs for node ~p", [Node]), - call(Node, {rabbit, rotate_logs, [""]}); -action(rotate_logs, Node, Args = [Suffix], Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), - call(Node, {rabbit, rotate_logs, Args}); - -action(close_connection, Node, [PidStr, Explanation], Inform) -> - Inform("Closing connection ~s", [PidStr]), - rpc_call(Node, rabbit_networking, close_connection, - [rabbit_misc:string_to_pid(PidStr), Explanation]); - -action(add_user, Node, Args = [Username, _Password], Inform) -> - Inform("Creating user ~p", [Username]), - call(Node, {rabbit_access_control, add_user, Args}); - -action(delete_user, Node, Args = [_Username], Inform) -> - Inform("Deleting user ~p", Args), - call(Node, {rabbit_access_control, delete_user, Args}); - -action(change_password, Node, Args = [Username, _Newpassword], Inform) -> - Inform("Changing password for user ~p", [Username]), - call(Node, {rabbit_access_control, change_password, Args}); - -action(list_users, Node, [], Inform) -> - Inform("Listing users", []), - display_list(call(Node, {rabbit_access_control, list_users, []})); - -action(add_vhost, Node, Args = [_VHostPath], Inform) -> - Inform("Creating vhost ~p", Args), - call(Node, {rabbit_access_control, add_vhost, Args}); - -action(delete_vhost, Node, Args = [_VHostPath], Inform) -> - Inform("Deleting vhost ~p", Args), - call(Node, {rabbit_access_control, delete_vhost, Args}); - -action(list_vhosts, Node, [], Inform) -> - Inform("Listing vhosts", []), - display_list(call(Node, {rabbit_access_control, list_vhosts, []})); - -action(list_user_permissions, Node, Args = [_Username], Inform) -> - Inform("Listing permissions for user ~p", Args), - display_list(call(Node, {rabbit_access_control, list_user_permissions, - Args})); - -action(list_queues, Node, Args, Inform) -> - Inform("Listing queues", []), - {VHostArg, RemainingArgs} = parse_vhost_flag_bin(Args), - ArgAtoms = default_if_empty(RemainingArgs, [name, messages]), - display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_exchanges, Node, Args, Inform) -> - Inform("Listing exchanges", []), - {VHostArg, RemainingArgs} = parse_vhost_flag_bin(Args), - ArgAtoms = default_if_empty(RemainingArgs, [name, type]), - display_info_list(rpc_call(Node, rabbit_exchange, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_bindings, Node, Args, Inform) -> - Inform("Listing bindings", []), - {VHostArg, _} = parse_vhost_flag_bin(Args), - InfoKeys = [exchange_name, queue_name, routing_key, args], - display_info_list( - [lists:zip(InfoKeys, tuple_to_list(X)) || - X <- rpc_call(Node, rabbit_exchange, list_bindings, [VHostArg])], - InfoKeys); - -action(list_connections, Node, Args, Inform) -> - Inform("Listing connections", []), - ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state, - protocol]), - display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, - [ArgAtoms]), - ArgAtoms); - -action(list_channels, Node, Args, Inform) -> - Inform("Listing channels", []), - ArgAtoms = default_if_empty(Args, [pid, user, transactional, consumer_count, - messages_unacknowledged]), - display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); - -action(list_consumers, Node, Args, Inform) -> - Inform("Listing consumers", []), - {VHostArg, _} = parse_vhost_flag_bin(Args), - InfoKeys = [queue_name, channel_pid, consumer_tag, ack_required], - display_info_list( - [lists:zip(InfoKeys, tuple_to_list(X)) || - X <- rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg])], - InfoKeys); - -action(Command, Node, Args, Inform) -> - {VHost, RemainingArgs} = parse_vhost_flag(Args), - action(Command, Node, VHost, RemainingArgs, Inform). - -action(set_permissions, Node, VHost, [Username, CPerm, WPerm, RPerm], Inform) -> - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_access_control, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, VHost, [Username], Inform) -> - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_access_control, clear_permissions, [Username, VHost]}); - -action(list_permissions, Node, VHost, [], Inform) -> - Inform("Listing permissions in vhost ~p", [VHost]), - display_list(call(Node, {rabbit_access_control, list_vhost_permissions, - [VHost]})). - -parse_vhost_flag(Args) when is_list(Args) -> - case Args of - ["-p", VHost | RemainingArgs] -> - {VHost, RemainingArgs}; - RemainingArgs -> - {"/", RemainingArgs} - end. - -parse_vhost_flag_bin(Args) -> - {VHost, RemainingArgs} = parse_vhost_flag(Args), - {list_to_binary(VHost), RemainingArgs}. - -default_if_empty(List, Default) when is_list(List) -> - if List == [] -> - Default; - true -> - [list_to_atom(X) || X <- List] - end. - -display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach(fun (Result) -> display_row([format_info_item(X, Result) || - X <- InfoItemKeys]) - end, Results), - ok; -display_info_list(Other, _) -> - Other. - -display_row(Row) -> - io:fwrite(lists:flatten(rabbit_misc:intersperse("\t", Row))), - io:nl(). - -format_info_item(Key, Items) -> - case proplists:get_value(Key, Items) of - #resource{name = Name} -> - escape(Name); - Value when Key =:= address; Key =:= peer_address andalso - is_tuple(Value) -> - inet_parse:ntoa(Value); - Value when is_pid(Value) -> - rabbit_misc:pid_to_string(Value); - Value when is_binary(Value) -> - escape(Value); - Value when is_atom(Value) -> - escape(atom_to_list(Value)); - Value = [{TableEntryKey, TableEntryType, _TableEntryValue} | _] - when is_binary(TableEntryKey) andalso is_atom(TableEntryType) -> - io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); - Value -> - io_lib:format("~w", [Value]) - end. - -display_list(L) when is_list(L) -> - lists:foreach(fun (I) when is_binary(I) -> - io:format("~s~n", [escape(I)]); - (I) when is_tuple(I) -> - display_row([escape(V) - || V <- tuple_to_list(I)]) - end, - lists:sort(L)), - ok; -display_list(Other) -> Other. - -call(Node, {Mod, Fun, Args}) -> - rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). - -rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). - -%% escape does C-style backslash escaping of non-printable ASCII -%% characters. We don't escape characters above 127, since they may -%% form part of UTF-8 strings. - -escape(Bin) when is_binary(Bin) -> - escape(binary_to_list(Bin)); -escape(L) when is_list(L) -> - escape_char(lists:reverse(L), []). - -escape_char([$\\ | T], Acc) -> - escape_char(T, [$\\, $\\ | Acc]); -escape_char([X | T], Acc) when X >= 32, X /= 127 -> - escape_char(T, [X | Acc]); -escape_char([X | T], Acc) -> - escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), - $0 + (X band 7) | Acc]); -escape_char([], Acc) -> - Acc. - -prettify_amqp_table(Table) -> - [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. - -prettify_typed_amqp_value(Type, Value) -> - case Type of - longstr -> escape(Value); - table -> prettify_amqp_table(Value); - array -> [prettify_typed_amqp_value(T, V) || {T, V} <- Value]; - _ -> Value - end. diff --git a/src/rabbit_disk_backed_queue.erl b/src/rabbit_disk_backed_queue.erl deleted file mode 100644 index 251761de..00000000 --- a/src/rabbit_disk_backed_queue.erl +++ /dev/null @@ -1,248 +0,0 @@ --module(rabbit_disk_backed_queue). - --behaviour(gen_server). - --export([new/1, destroy/1, - dequeue/1, pushback/2, enqueue/2, enqueue_list/2, - foreach/2, foldl/3, - clear/1, - is_empty/1, - len/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([test/0]). - -new([{backing_filename, Filename}]) -> - {ok, Pid} = gen_server:start_link(?MODULE, [Filename], []), - Pid. - -destroy(P) -> gen_server:call(P, destroy). - -dequeue(P) -> gen_server:call(P, dequeue). -pushback(Item, P) -> gen_server:call(P, {pushback, Item}). -enqueue(Item, P) -> gen_server:call(P, {enqueue, Item}). -enqueue_list(Items, P) -> gen_server:call(P, {enqueue_list, Items}). -foreach(F, P) -> gen_server:call(P, {foreach, F}, infinity). -foldl(F, Acc, P) -> gen_server:call(P, {foldl, F, Acc}, infinity). -clear(P) -> gen_server:call(P, clear). -is_empty(P) -> gen_server:call(P, is_empty). -len(P) -> gen_server:call(P, len). - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - --define(THRESHOLD, 100). - --define(MAGIC_HEADER, <<"DBQ0">>). - --record(state, {filename, dev, gaps, read_pos, tail_pos, - pushback, - buffer, buffer_length, - total_length}). - -init([Filename]) -> - {ok, Dev} = file:open(Filename, [read, write, raw, binary, delayed_write, read_ahead]), - ok = reset_dev(Dev), - fresh_state(Filename, Dev). - -reset_dev(Dev) -> - {ok, 0} = file:position(Dev, 0), - ok = file:truncate(Dev), - ok = file:write(Dev, ?MAGIC_HEADER), - ok. - -fresh_state(Filename, Dev) -> - {ok, #state{filename = Filename, - dev = Dev, - gaps = intervals:range(size(?MAGIC_HEADER), inf), - read_pos = 0, - tail_pos = 0, - pushback = [], - buffer = [], - buffer_length = 0, - total_length = 0}}. - -chunk_at(Dev, ReadPos) - when ReadPos > 0 -> - {ok, ReadPos} = file:position(Dev, ReadPos), - {ok, <>} = file:read(Dev, 16), - {ok, ChunkBin} = file:read(Dev, ChunkLen), - {binary_to_term(ChunkBin), ChunkLen, NextPos}. - -pop_chunk(State = #state{dev = Dev, - pushback = [], - read_pos = ReadPos, - tail_pos = OldTailPos, - gaps = OldGaps, - total_length = OldLen}) -> - {[Item | Chunk], ChunkLen, NextPos} = chunk_at(Dev, ReadPos), - NewTailPos = if - OldTailPos == ReadPos + 8 -> 0; - true -> OldTailPos - end, - NewGaps = intervals:union(OldGaps, - intervals:range(ReadPos, ReadPos + ChunkLen + 16)), - case intervals:first_fit(inf, NewGaps) of - none -> ok; - {ok, FirstUnusedByte} -> - {ok, FirstUnusedByte} = file:position(Dev, FirstUnusedByte), - ok = file:truncate(Dev) - end, - {Item, State#state{pushback = Chunk, - read_pos = NextPos, - tail_pos = NewTailPos, - gaps = NewGaps, - total_length = OldLen - 1}}. - -maybe_evict(State = #state{buffer_length = BufLen}) - when BufLen < ?THRESHOLD -> - State; -maybe_evict(State = #state{dev = Dev, - gaps = OldGaps, - read_pos = OldReadPos, - tail_pos = OldTailPos, - buffer = Buffer}) -> - ChunkBin = term_to_binary(lists:reverse(Buffer)), - RequiredSpace = size(ChunkBin) + 16, - {ok, FirstFit} = intervals:first_fit(RequiredSpace, OldGaps), - NewGaps = intervals:difference(OldGaps, intervals:range(FirstFit, FirstFit + RequiredSpace)), - {ok, FirstFit} = file:position(Dev, FirstFit), - ok = file:write(Dev, [<<(size(ChunkBin)):64/unsigned, 0:64/unsigned>>, ChunkBin]), - case OldTailPos of - 0 -> ok; - _ -> - {ok, OldTailPos} = file:position(Dev, OldTailPos), - ok = file:write(Dev, <>) - end, - NewReadPos = if - OldReadPos == 0 -> FirstFit; - true -> OldReadPos - end, - State#state{gaps = NewGaps, - read_pos = NewReadPos, - tail_pos = FirstFit + 8, - buffer = [], - buffer_length = 0}. - -foldl_chunk(_ChunkFun, Acc, _Dev, 0) -> - Acc; -foldl_chunk(ChunkFun, Acc, Dev, ReadPos) -> - {Chunk, _ChunkLen, NextPos} = chunk_at(Dev, ReadPos), - NewAcc = ChunkFun(Chunk, Acc), - foldl_chunk(ChunkFun, NewAcc, Dev, NextPos). - -handle_call(destroy, _From, State) -> - {stop, normal, ok, State}; -handle_call(dequeue, _From, State = #state{total_length = 0}) -> - {reply, empty, State}; -handle_call(dequeue, _From, State = #state{pushback = [Item | Rest], - total_length = OldLen}) -> - {reply, {ok, Item}, State#state{pushback = Rest, total_length = OldLen - 1}}; -handle_call(dequeue, _From, State = #state{read_pos = 0, - buffer = OldBuf, - total_length = OldLen}) -> - [Item | NewPushback] = lists:reverse(OldBuf), - {reply, {ok, Item}, State#state{pushback = NewPushback, - buffer = [], - buffer_length = 0, - total_length = OldLen - 1}}; -handle_call(dequeue, _From, State) -> - {Item, NewState} = pop_chunk(State), - {reply, {ok, Item}, NewState}; - -handle_call({pushback, Item}, _From, State = #state{pushback = Rest, total_length = OldLen}) -> - {reply, ok, State#state{pushback = [Item | Rest], total_length = OldLen + 1}}; -handle_call({enqueue, Item}, _From, State = #state{buffer = OldBuf, - buffer_length = OldBufLen, - total_length = OldLen}) -> - {reply, ok, maybe_evict(State#state{buffer = [Item | OldBuf], - buffer_length = OldBufLen + 1, - total_length = OldLen + 1})}; -handle_call({enqueue_list, Items}, _From, State = #state{buffer = OldBuf, - buffer_length = OldBufLen, - total_length = OldLen}) -> - NItems = length(Items), - {reply, ok, maybe_evict(State#state{buffer = lists:reverse(Items, OldBuf), - buffer_length = OldBufLen + NItems, - total_length = OldLen + NItems})}; -handle_call({foreach, F}, _From, State = #state{dev = Dev, - read_pos = ReadPos, - pushback = Pushback, - buffer = Buffer}) -> - ok = lists:foreach(F, Pushback), - ok = foldl_chunk(fun (Value, ok) -> ok = lists:foreach(F, Value) end, ok, Dev, ReadPos), - ok = lists:foreach(F, lists:reverse(Buffer)), - {reply, ok, State}; -handle_call({foldl, F, Acc0}, _From, State = #state{dev = Dev, - read_pos = ReadPos, - pushback = Pushback, - buffer = Buffer}) -> - Acc1 = lists:foldl(F, Acc0, Pushback), - Acc2 = foldl_chunk(fun (Value, AccN) -> lists:foldl(F, AccN, Value) end, Acc1, Dev, ReadPos), - Acc3 = lists:foldl(F, Acc2, lists:reverse(Buffer)), - {reply, Acc3, State}; -handle_call(clear, _From, #state{filename = Filename, dev = Dev}) -> - ok = reset_dev(Dev), - {reply, ok, fresh_state(Filename, Dev)}; -handle_call(is_empty, _From, State = #state{total_length = Len}) -> - {reply, case Len of - 0 -> true; - _ -> false - end, State}; -handle_call(len, _From, State = #state{total_length = Len}) -> - {reply, Len, State}; -handle_call(_Request, _From, State) -> - exit({?MODULE, unexpected_call, _Request, _From, State}). - -handle_cast(_Msg, State) -> - exit({?MODULE, unexpected_cast, _Msg, State}). - -handle_info(_Info, State) -> - exit({?MODULE, unexpected_info, _Info, State}). - -terminate(_Reason, _State = #state{filename = Filename, dev = Dev}) -> - _ProbablyOk = file:close(Dev), - ok = file:delete(Filename), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - --define(TESTFILE, "qqq.tmp"). - -test_insert_upto(_Pid, Lo, Hi) - when Lo >= Hi -> - ok; -test_insert_upto(Pid, Lo, Hi) -> - ok = ?MODULE:enqueue(Lo, Pid), - test_insert_upto(Pid, Lo + 1, Hi). - -test_remove_upto(Pid, Lo, Hi) - when Lo >= Hi -> - empty = ?MODULE:dequeue(Pid), - ok; -test_remove_upto(Pid, Lo, Hi) -> - {ok, Lo} = ?MODULE:dequeue(Pid), - test_remove_upto(Pid, Lo + 1, Hi). - -test() -> - Pid = ?MODULE:new([{backing_filename, ?TESTFILE}]), - Max = trunc(?THRESHOLD * 2.5), - Mid = trunc(Max / 2), - ok = test_insert_upto(Pid, 0, Max), - AllItems = lists:seq(0, Max - 1), - AllItems = lists:reverse(?MODULE:foldl(fun (X, Acc) -> [X | Acc] end, [], Pid)), - ok = test_remove_upto(Pid, 0, Max), - - ok = test_insert_upto(Pid, 0, Mid), - {ok, 0} = ?MODULE:dequeue(Pid), - ok = ?MODULE:pushback(abc, Pid), - ok = test_insert_upto(Pid, Mid, Max), - {ok, abc} = ?MODULE:dequeue(Pid), - ok = test_remove_upto(Pid, 1, Max), - - %% ok = ?MODULE:destroy(Pid), - ok. diff --git a/src/rabbit_disk_backed_queue_nogen.erl b/src/rabbit_disk_backed_queue_nogen.erl deleted file mode 100644 index c5d709df..00000000 --- a/src/rabbit_disk_backed_queue_nogen.erl +++ /dev/null @@ -1,202 +0,0 @@ --module(rabbit_disk_backed_queue_nogen). - --export([new/1, destroy/1, - dequeue/1, pushback/2, enqueue/2, enqueue_list/2, - foreach/2, foldl/3, - clear/1, - is_empty/1, - len/1]). - -new([{backing_filename, Filename}]) -> - spawn_link(fun () -> init([Filename]) end). - -destroy(P) -> rpc(P, destroy). - -dequeue(P) -> rpc(P, dequeue). -pushback(Item, P) -> rpc(P, {pushback, Item}). -enqueue(Item, P) -> rpc(P, {enqueue, Item}). -enqueue_list(Items, P) -> rpc(P, {enqueue_list, Items}). -foreach(F, P) -> rpc(P, {foreach, F}). -foldl(F, Acc, P) -> rpc(P, {foldl, F, Acc}). -clear(P) -> rpc(P, clear). -is_empty(P) -> rpc(P, is_empty). -len(P) -> rpc(P, len). - -rpc(P, Request) -> - K = make_ref(), - P ! {self(), K, Request}, - receive {K, Reply} -> Reply end. - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - --define(THRESHOLD, 100). - --define(MAGIC_HEADER, <<"DBQ0">>). - --record(state, {filename, dev, gaps, read_pos, tail_pos, - pushback, - buffer, buffer_length, - total_length}). - -init([Filename]) -> - {ok, Dev} = file:open(Filename, [read, write, raw, binary, delayed_write, read_ahead]), - ok = reset_dev(Dev), - mainloop(fresh_state(Filename, Dev)). - -mainloop(State) -> - receive - {Requestor, Key, destroy} -> - Requestor ! {Key, ok}, - ok; - {Requestor, Key, Request} -> - {reply, Reply, NewState} = handle(Request, State), - Requestor ! {Key, Reply}, - mainloop(NewState) - end. - -reset_dev(Dev) -> - {ok, 0} = file:position(Dev, 0), - ok = file:truncate(Dev), - ok = file:write(Dev, ?MAGIC_HEADER), - ok. - -fresh_state(Filename, Dev) -> - #state{filename = Filename, - dev = Dev, - gaps = intervals:range(size(?MAGIC_HEADER), inf), - read_pos = 0, - tail_pos = 0, - pushback = [], - buffer = [], - buffer_length = 0, - total_length = 0}. - -chunk_at(Dev, ReadPos) - when ReadPos > 0 -> - {ok, ReadPos} = file:position(Dev, ReadPos), - {ok, <>} = file:read(Dev, 16), - {ok, ChunkBin} = file:read(Dev, ChunkLen), - {binary_to_term(ChunkBin), ChunkLen, NextPos}. - -pop_chunk(State = #state{dev = Dev, - pushback = [], - read_pos = ReadPos, - tail_pos = OldTailPos, - gaps = OldGaps, - total_length = OldLen}) -> - {[Item | Chunk], ChunkLen, NextPos} = chunk_at(Dev, ReadPos), - NewTailPos = if - OldTailPos == ReadPos + 8 -> 0; - true -> OldTailPos - end, - NewGaps = intervals:union(OldGaps, - intervals:range(ReadPos, ReadPos + ChunkLen + 16)), - case intervals:first_fit(inf, NewGaps) of - none -> ok; - {ok, FirstUnusedByte} -> - {ok, FirstUnusedByte} = file:position(Dev, FirstUnusedByte), - ok = file:truncate(Dev) - end, - {Item, State#state{pushback = Chunk, - read_pos = NextPos, - tail_pos = NewTailPos, - gaps = NewGaps, - total_length = OldLen - 1}}. - -maybe_evict(State = #state{buffer_length = BufLen}) - when BufLen < ?THRESHOLD -> - State; -maybe_evict(State = #state{dev = Dev, - gaps = OldGaps, - read_pos = OldReadPos, - tail_pos = OldTailPos, - buffer = Buffer}) -> - ChunkBin = term_to_binary(lists:reverse(Buffer)), - RequiredSpace = size(ChunkBin) + 16, - {ok, FirstFit} = intervals:first_fit(RequiredSpace, OldGaps), - NewGaps = intervals:difference(OldGaps, intervals:range(FirstFit, FirstFit + RequiredSpace)), - {ok, FirstFit} = file:position(Dev, FirstFit), - ok = file:write(Dev, [<<(size(ChunkBin)):64/unsigned, 0:64/unsigned>>, ChunkBin]), - case OldTailPos of - 0 -> ok; - _ -> - {ok, OldTailPos} = file:position(Dev, OldTailPos), - ok = file:write(Dev, <>) - end, - NewReadPos = if - OldReadPos == 0 -> FirstFit; - true -> OldReadPos - end, - State#state{gaps = NewGaps, - read_pos = NewReadPos, - tail_pos = FirstFit + 8, - buffer = [], - buffer_length = 0}. - -foldl_chunk(_ChunkFun, Acc, _Dev, 0) -> - Acc; -foldl_chunk(ChunkFun, Acc, Dev, ReadPos) -> - {Chunk, _ChunkLen, NextPos} = chunk_at(Dev, ReadPos), - NewAcc = ChunkFun(Chunk, Acc), - foldl_chunk(ChunkFun, NewAcc, Dev, NextPos). - -handle(dequeue, State = #state{total_length = 0}) -> - {reply, empty, State}; -handle(dequeue, State = #state{pushback = [Item | Rest], - total_length = OldLen}) -> - {reply, {ok, Item}, State#state{pushback = Rest, total_length = OldLen - 1}}; -handle(dequeue, State = #state{read_pos = 0, - buffer = OldBuf, - total_length = OldLen}) -> - [Item | NewPushback] = lists:reverse(OldBuf), - {reply, {ok, Item}, State#state{pushback = NewPushback, - buffer = [], - buffer_length = 0, - total_length = OldLen - 1}}; -handle(dequeue, State) -> - {Item, NewState} = pop_chunk(State), - {reply, {ok, Item}, NewState}; - -handle({pushback, Item}, State = #state{pushback = Rest, total_length = OldLen}) -> - {reply, ok, State#state{pushback = [Item | Rest], total_length = OldLen + 1}}; -handle({enqueue, Item}, State = #state{buffer = OldBuf, - buffer_length = OldBufLen, - total_length = OldLen}) -> - {reply, ok, maybe_evict(State#state{buffer = [Item | OldBuf], - buffer_length = OldBufLen + 1, - total_length = OldLen + 1})}; -handle({enqueue_list, Items}, State = #state{buffer = OldBuf, - buffer_length = OldBufLen, - total_length = OldLen}) -> - NItems = length(Items), - {reply, ok, maybe_evict(State#state{buffer = lists:reverse(Items, OldBuf), - buffer_length = OldBufLen + NItems, - total_length = OldLen + NItems})}; -handle({foreach, F}, State = #state{dev = Dev, - read_pos = ReadPos, - pushback = Pushback, - buffer = Buffer}) -> - ok = lists:foreach(F, Pushback), - ok = foldl_chunk(fun (Value, ok) -> ok = lists:foreach(F, Value) end, ok, Dev, ReadPos), - ok = lists:foreach(F, lists:reverse(Buffer)), - {reply, ok, State}; -handle({foldl, F, Acc0}, State = #state{dev = Dev, - read_pos = ReadPos, - pushback = Pushback, - buffer = Buffer}) -> - Acc1 = lists:foldl(F, Acc0, Pushback), - Acc2 = foldl_chunk(fun (Value, AccN) -> lists:foldl(F, AccN, Value) end, Acc1, Dev, ReadPos), - Acc3 = lists:foldl(F, Acc2, lists:reverse(Buffer)), - {reply, Acc3, State}; -handle(clear, #state{filename = Filename, dev = Dev}) -> - ok = reset_dev(Dev), - {reply, ok, fresh_state(Filename, Dev)}; -handle(is_empty, State = #state{total_length = Len}) -> - {reply, case Len of - 0 -> true; - _ -> false - end, State}; -handle(len, State = #state{total_length = Len}) -> - {reply, Len, State}; -handle(_Request, State) -> - exit({?MODULE, unexpected_call, _Request, State}). diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl deleted file mode 100644 index face0a1a..00000000 --- a/src/rabbit_error_logger.erl +++ /dev/null @@ -1,88 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_error_logger). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(LOG_EXCH_NAME, <<"amq.rabbitmq.log">>). - --behaviour(gen_event). - --export([boot/0]). - --export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, handle_info/2]). - -boot() -> - {ok, DefaultVHost} = application:get_env(default_vhost), - ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). - -init([DefaultVHost]) -> - #exchange{} = rabbit_exchange:declare( - rabbit_misc:r(DefaultVHost, exchange, ?LOG_EXCH_NAME), - topic, true, []), - {ok, #resource{virtual_host = DefaultVHost, - kind = exchange, - name = ?LOG_EXCH_NAME}}. - -terminate(_Arg, _State) -> - terminated_ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State) -> - ok = publish(Kind, Format, Data, State), - {ok, State}; -handle_event(_Event, State) -> - {ok, State}. - -handle_info(_Info, State) -> - {ok, State}. - -publish(error, Format, Data, State) -> - publish1(<<"error">>, Format, Data, State); -publish(warning_msg, Format, Data, State) -> - publish1(<<"warning">>, Format, Data, State); -publish(info_msg, Format, Data, State) -> - publish1(<<"info">>, Format, Data, State); -publish(_Other, _Format, _Data, _State) -> - ok. - -publish1(RoutingKey, Format, Data, LogExch) -> - {ok, _RoutingRes, _DeliveredQPids} = - rabbit_basic:publish(LogExch, RoutingKey, false, false, none, - #'P_basic'{content_type = <<"text/plain">>}, - list_to_binary(io_lib:format(Format, Data))), - ok. diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl deleted file mode 100644 index 82ed5cf1..00000000 --- a/src/rabbit_exchange.erl +++ /dev/null @@ -1,577 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([recover/0, declare/4, lookup/1, lookup_or_die/1, - list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2, - publish/2]). --export([add_binding/5, delete_binding/5, list_bindings/1]). --export([delete/2]). --export([delete_queue_bindings/1, delete_transient_queue_bindings/1]). --export([assert_equivalence/4]). --export([assert_args_equivalence/2]). --export([check_type/1]). - -%% EXTENDED API --export([list_exchange_bindings/1]). --export([list_queue_bindings/1]). - --import(mnesia). --import(sets). --import(lists). --import(regexp). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(bind_res() :: 'ok' | {'error', - 'queue_not_found' | - 'exchange_not_found' | - 'exchange_and_queue_not_found'}). --type(inner_fun() :: fun((exchange(), queue()) -> any())). - --spec(recover/0 :: () -> 'ok'). --spec(declare/4 :: (exchange_name(), exchange_type(), boolean(), amqp_table()) -> exchange()). --spec(check_type/1 :: (binary()) -> atom()). --spec(assert_equivalence/4 :: (exchange(), atom(), boolean(), amqp_table()) -> 'ok'). --spec(assert_args_equivalence/2 :: (exchange(), amqp_table()) -> 'ok'). --spec(lookup/1 :: (exchange_name()) -> {'ok', exchange()} | not_found()). --spec(lookup_or_die/1 :: (exchange_name()) -> exchange()). --spec(list/1 :: (vhost()) -> [exchange()]). --spec(info_keys/0 :: () -> [info_key()]). --spec(info/1 :: (exchange()) -> [info()]). --spec(info/2 :: (exchange(), [info_key()]) -> [info()]). --spec(info_all/1 :: (vhost()) -> [[info()]]). --spec(info_all/2 :: (vhost(), [info_key()]) -> [[info()]]). --spec(publish/2 :: (exchange(), delivery()) -> {routing_result(), [pid()]}). --spec(add_binding/5 :: - (exchange_name(), queue_name(), routing_key(), amqp_table(), inner_fun()) -> - bind_res()). --spec(delete_binding/5 :: - (exchange_name(), queue_name(), routing_key(), amqp_table(), inner_fun()) -> - bind_res() | {'error', 'binding_not_found'}). --spec(list_bindings/1 :: (vhost()) -> - [{exchange_name(), queue_name(), routing_key(), amqp_table()}]). --spec(delete_queue_bindings/1 :: (queue_name()) -> fun (() -> none())). --spec(delete_transient_queue_bindings/1 :: (queue_name()) -> - fun (() -> none())). --spec(delete/2 :: (exchange_name(), boolean()) -> - 'ok' | not_found() | {'error', 'in_use'}). --spec(list_queue_bindings/1 :: (queue_name()) -> - [{exchange_name(), routing_key(), amqp_table()}]). --spec(list_exchange_bindings/1 :: (exchange_name()) -> - [{queue_name(), routing_key(), amqp_table()}]). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [name, type, durable, arguments]. - -recover() -> - Exs = rabbit_misc:table_fold( - fun (Exchange, Acc) -> - ok = mnesia:write(rabbit_exchange, Exchange, write), - [Exchange | Acc] - end, [], rabbit_durable_exchange), - Bs = rabbit_misc:table_fold( - fun (Route = #route{binding = B}, Acc) -> - {_, ReverseRoute} = route_with_reverse(Route), - ok = mnesia:write(rabbit_route, - Route, write), - ok = mnesia:write(rabbit_reverse_route, - ReverseRoute, write), - [B | Acc] - end, [], rabbit_durable_route), - recover_with_bindings(Bs, Exs), - ok. - -recover_with_bindings(Bs, Exs) -> - recover_with_bindings( - lists:keysort(#binding.exchange_name, Bs), - lists:keysort(#exchange.name, Exs), []). - -recover_with_bindings([B = #binding{exchange_name = Name} | Rest], - Xs = [#exchange{name = Name} | _], - Bindings) -> - recover_with_bindings(Rest, Xs, [B | Bindings]); -recover_with_bindings(Bs, [X = #exchange{type = Type} | Xs], Bindings) -> - (type_to_module(Type)):recover(X, Bindings), - recover_with_bindings(Bs, Xs, []); -recover_with_bindings([], [], []) -> - ok. - -declare(ExchangeName, Type, Durable, Args) -> - Exchange = #exchange{name = ExchangeName, - type = Type, - durable = Durable, - arguments = Args}, - %% We want to upset things if it isn't ok; this is different from - %% the other hooks invocations, where we tend to ignore the return - %% value. - TypeModule = type_to_module(Type), - ok = TypeModule:validate(Exchange), - case rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_exchange, ExchangeName}) of - [] -> - ok = mnesia:write(rabbit_exchange, Exchange, write), - ok = case Durable of - true -> - mnesia:write(rabbit_durable_exchange, - Exchange, write); - false -> - ok - end, - {new, Exchange}; - [ExistingX] -> - {existing, ExistingX} - end - end) of - {new, X} -> TypeModule:create(X), - X; - {existing, X} -> X; - Err -> Err - end. - -%% Used with atoms from records; e.g., the type is expected to exist. -type_to_module(T) -> - case rabbit_exchange_type_registry:lookup_module(T) of - {ok, Module} -> Module; - {error, not_found} -> rabbit_misc:protocol_error( - command_invalid, - "invalid exchange type '~s'", [T]) - end. - -%% Used with binaries sent over the wire; the type may not exist. -check_type(TypeBin) -> - case rabbit_exchange_type_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown exchange type '~s'", [TypeBin]); - T -> - _Module = type_to_module(T), - T - end. - -assert_equivalence(X = #exchange{ durable = Durable, - type = Type}, - Type, Durable, - RequiredArgs) -> - ok = (type_to_module(Type)):assert_args_equivalence(X, RequiredArgs); -assert_equivalence(#exchange{ name = Name }, _Type, _Durable, - _Args) -> - rabbit_misc:protocol_error( - precondition_failed, - "cannot redeclare ~s with different type, durable or autodelete value", - [rabbit_misc:rs(Name)]). - -alternate_exchange_value(Args) -> - lists:keysearch(<<"alternate-exchange">>, 1, Args). - -assert_args_equivalence(#exchange{ name = Name, - arguments = Args }, - RequiredArgs) -> - %% The spec says "Arguments are compared for semantic - %% equivalence". The only arg we care about is - %% "alternate-exchange". - Ae1 = alternate_exchange_value(RequiredArgs), - Ae2 = alternate_exchange_value(Args), - if Ae1==Ae2 -> ok; - true -> rabbit_misc:protocol_error( - precondition_failed, - "cannot redeclare ~s with inequivalent args", - [rabbit_misc:rs(Name)]) - end. - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_exchange, Name}). - -lookup_or_die(Name) -> - case lookup(Name) of - {ok, X} -> X; - {error, not_found} -> rabbit_misc:not_found(Name) - end. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_exchange, - #exchange{name = rabbit_misc:r(VHostPath, exchange), _ = '_'}). - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, X) -> [{Item, i(Item, X)} || Item <- Items]. - -i(name, #exchange{name = Name}) -> Name; -i(type, #exchange{type = Type}) -> Type; -i(durable, #exchange{durable = Durable}) -> Durable; -i(arguments, #exchange{arguments = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(X = #exchange{}) -> infos(?INFO_KEYS, X). - -info(X = #exchange{}, Items) -> infos(Items, X). - -info_all(VHostPath) -> map(VHostPath, fun (X) -> info(X) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (X) -> info(X, Items) end). - -publish(X, Delivery) -> - publish(X, [], Delivery). - -publish(X = #exchange{type = Type}, Seen, Delivery) -> - case (type_to_module(Type)):publish(X, Delivery) of - {_, []} = R -> - #exchange{name = XName, arguments = Args} = X, - case rabbit_misc:r_arg(XName, exchange, Args, - <<"alternate-exchange">>) of - undefined -> - R; - AName -> - NewSeen = [XName | Seen], - case lists:member(AName, NewSeen) of - true -> R; - false -> case lookup(AName) of - {ok, AX} -> - publish(AX, NewSeen, Delivery); - {error, not_found} -> - rabbit_log:warning( - "alternate exchange for ~s " - "does not exist: ~s", - [rabbit_misc:rs(XName), - rabbit_misc:rs(AName)]), - R - end - end - end; - R -> - R - end. - -%% TODO: Should all of the route and binding management not be -%% refactored to its own module, especially seeing as unbind will have -%% to be implemented for 0.91 ? - -delete_exchange_bindings(ExchangeName) -> - [begin - ok = mnesia:delete_object(rabbit_reverse_route, - reverse_route(Route), write), - ok = delete_forward_routes(Route), - Route#route.binding - end || Route <- mnesia:match_object( - rabbit_route, - #route{binding = #binding{exchange_name = ExchangeName, - _ = '_'}}, - write)]. - -delete_queue_bindings(QueueName) -> - delete_queue_bindings(QueueName, fun delete_forward_routes/1). - -delete_transient_queue_bindings(QueueName) -> - delete_queue_bindings(QueueName, fun delete_transient_forward_routes/1). - -delete_queue_bindings(QueueName, FwdDeleteFun) -> - DeletedBindings = - [begin - Route = reverse_route(ReverseRoute), - ok = FwdDeleteFun(Route), - ok = mnesia:delete_object(rabbit_reverse_route, - ReverseRoute, write), - Route#route.binding - end || ReverseRoute - <- mnesia:match_object( - rabbit_reverse_route, - reverse_route(#route{binding = #binding{ - queue_name = QueueName, - _ = '_'}}), - write)], - Cleanup = cleanup_deleted_queue_bindings( - lists:keysort(#binding.exchange_name, DeletedBindings), []), - fun () -> - lists:foreach( - fun ({{IsDeleted, X = #exchange{ type = Type }}, Bs}) -> - Module = type_to_module(Type), - case IsDeleted of - auto_deleted -> Module:delete(X, Bs); - not_deleted -> Module:remove_bindings(X, Bs) - end - end, Cleanup) - end. - -%% Requires that its input binding list is sorted in exchange-name -%% order, so that the grouping of bindings (for passing to -%% cleanup_deleted_queue_bindings1) works properly. -cleanup_deleted_queue_bindings([], Acc) -> - Acc; -cleanup_deleted_queue_bindings( - [B = #binding{exchange_name = ExchangeName} | Bs], Acc) -> - cleanup_deleted_queue_bindings(ExchangeName, Bs, [B], Acc). - -cleanup_deleted_queue_bindings( - ExchangeName, [B = #binding{exchange_name = ExchangeName} | Bs], - Bindings, Acc) -> - cleanup_deleted_queue_bindings(ExchangeName, Bs, [B | Bindings], Acc); -cleanup_deleted_queue_bindings(ExchangeName, Deleted, Bindings, Acc) -> - %% either Deleted is [], or its head has a non-matching ExchangeName - NewAcc = [cleanup_deleted_queue_bindings1(ExchangeName, Bindings) | Acc], - cleanup_deleted_queue_bindings(Deleted, NewAcc). - -cleanup_deleted_queue_bindings1(ExchangeName, Bindings) -> - [X] = mnesia:read({rabbit_exchange, ExchangeName}), - {maybe_auto_delete(X), Bindings}. - -delete_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write), - ok = mnesia:delete_object(rabbit_durable_route, Route, write). - -delete_transient_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write). - -contains(Table, MatchHead) -> - continue(mnesia:select(Table, [{MatchHead, [], ['$_']}], 1, read)). - -continue('$end_of_table') -> false; -continue({[_|_], _}) -> true; -continue({[], Continuation}) -> continue(mnesia:select(Continuation)). - -call_with_exchange(Exchange, Fun) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> case mnesia:read({rabbit_exchange, Exchange}) of - [] -> {error, not_found}; - [X] -> Fun(X) - end - end). - -call_with_exchange_and_queue(Exchange, Queue, Fun) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> case {mnesia:read({rabbit_exchange, Exchange}), - mnesia:read({rabbit_queue, Queue})} of - {[X], [Q]} -> Fun(X, Q); - {[ ], [_]} -> {error, exchange_not_found}; - {[_], [ ]} -> {error, queue_not_found}; - {[ ], [ ]} -> {error, exchange_and_queue_not_found} - end - end). - -add_binding(ExchangeName, QueueName, RoutingKey, Arguments, InnerFun) -> - case binding_action( - ExchangeName, QueueName, RoutingKey, Arguments, - fun (X, Q, B) -> - %% this argument is used to check queue exclusivity; - %% in general, we want to fail on that in preference to - %% anything else - InnerFun(X, Q), - case mnesia:read({rabbit_route, B}) of - [] -> - sync_binding(B, - X#exchange.durable andalso - Q#amqqueue.durable, - fun mnesia:write/3), - {new, X, B}; - [_R] -> - {existing, X, B} - end - end) of - {new, Exchange = #exchange{ type = Type }, Binding} -> - (type_to_module(Type)):add_binding(Exchange, Binding); - {existing, _, _} -> - ok; - Err = {error, _} -> - Err - end. - -delete_binding(ExchangeName, QueueName, RoutingKey, Arguments, InnerFun) -> - case binding_action( - ExchangeName, QueueName, RoutingKey, Arguments, - fun (X, Q, B) -> - case mnesia:match_object(rabbit_route, #route{binding = B}, - write) of - [] -> {error, binding_not_found}; - _ -> InnerFun(X, Q), - ok = sync_binding(B, Q#amqqueue.durable, - fun mnesia:delete_object/3), - {maybe_auto_delete(X), B} - end - end) of - Err = {error, _} -> - Err; - {{IsDeleted, X = #exchange{ type = Type }}, B} -> - Module = type_to_module(Type), - case IsDeleted of - auto_deleted -> Module:delete(X, [B]); - not_deleted -> Module:remove_bindings(X, [B]) - end - end. - -binding_action(ExchangeName, QueueName, RoutingKey, Arguments, Fun) -> - call_with_exchange_and_queue( - ExchangeName, QueueName, - fun (X, Q) -> - Fun(X, Q, #binding{ - exchange_name = ExchangeName, - queue_name = QueueName, - key = RoutingKey, - args = rabbit_misc:sort_field_table(Arguments)}) - end). - -sync_binding(Binding, Durable, Fun) -> - ok = case Durable of - true -> Fun(rabbit_durable_route, - #route{binding = Binding}, write); - false -> ok - end, - {Route, ReverseRoute} = route_with_reverse(Binding), - ok = Fun(rabbit_route, Route, write), - ok = Fun(rabbit_reverse_route, ReverseRoute, write), - ok. - -list_bindings(VHostPath) -> - [{ExchangeName, QueueName, RoutingKey, Arguments} || - #route{binding = #binding{ - exchange_name = ExchangeName, - key = RoutingKey, - queue_name = QueueName, - args = Arguments}} - <- mnesia:dirty_match_object( - rabbit_route, - #route{binding = #binding{ - exchange_name = rabbit_misc:r(VHostPath, exchange), - _ = '_'}, - _ = '_'})]. - -route_with_reverse(#route{binding = Binding}) -> - route_with_reverse(Binding); -route_with_reverse(Binding = #binding{}) -> - Route = #route{binding = Binding}, - {Route, reverse_route(Route)}. - -reverse_route(#route{binding = Binding}) -> - #reverse_route{reverse_binding = reverse_binding(Binding)}; - -reverse_route(#reverse_route{reverse_binding = Binding}) -> - #route{binding = reverse_binding(Binding)}. - -reverse_binding(#reverse_binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}) -> - #binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}; - -reverse_binding(#binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}) -> - #reverse_binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}. - -delete(ExchangeName, IfUnused) -> - Fun = case IfUnused of - true -> fun conditional_delete/1; - false -> fun unconditional_delete/1 - end, - case call_with_exchange(ExchangeName, Fun) of - {deleted, X = #exchange{type = Type}, Bs} -> - (type_to_module(Type)):delete(X, Bs), - ok; - Error = {error, _InUseOrNotFound} -> - Error - end. - -<<<<<<< local -%% TODO: remove this autodelete machinery altogether. -maybe_auto_delete(Exchange) -> - {no_delete, Exchange}. -======= -maybe_auto_delete(Exchange = #exchange{auto_delete = false}) -> - {not_deleted, Exchange}; -maybe_auto_delete(Exchange = #exchange{auto_delete = true}) -> - case conditional_delete(Exchange) of - {error, in_use} -> {not_deleted, Exchange}; - {deleted, Exchange, []} -> {auto_deleted, Exchange} - end. ->>>>>>> other - -conditional_delete(Exchange = #exchange{name = ExchangeName}) -> - Match = #route{binding = #binding{exchange_name = ExchangeName, _ = '_'}}, - %% we need to check for durable routes here too in case a bunch of - %% routes to durable queues have been removed temporarily as a - %% result of a node failure - case contains(rabbit_route, Match) orelse - contains(rabbit_durable_route, Match) of - false -> unconditional_delete(Exchange); - true -> {error, in_use} - end. - -unconditional_delete(Exchange = #exchange{name = ExchangeName}) -> - Bindings = delete_exchange_bindings(ExchangeName), - ok = mnesia:delete({rabbit_durable_exchange, ExchangeName}), - ok = mnesia:delete({rabbit_exchange, ExchangeName}), - {deleted, Exchange, Bindings}. - -%%---------------------------------------------------------------------------- -%% EXTENDED API -%% These are API calls that are not used by the server internally, -%% they are exported for embedded clients to use - -%% This is currently used in mod_rabbit.erl (XMPP) and expects this to -%% return {QueueName, RoutingKey, Arguments} tuples -list_exchange_bindings(ExchangeName) -> - Route = #route{binding = #binding{exchange_name = ExchangeName, - _ = '_'}}, - [{QueueName, RoutingKey, Arguments} || - #route{binding = #binding{queue_name = QueueName, - key = RoutingKey, - args = Arguments}} - <- mnesia:dirty_match_object(rabbit_route, Route)]. - -% Refactoring is left as an exercise for the reader -list_queue_bindings(QueueName) -> - Route = #route{binding = #binding{queue_name = QueueName, - _ = '_'}}, - [{ExchangeName, RoutingKey, Arguments} || - #route{binding = #binding{exchange_name = ExchangeName, - key = RoutingKey, - args = Arguments}} - <- mnesia:dirty_match_object(rabbit_route, Route)]. diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl deleted file mode 100644 index 85760edc..00000000 --- a/src/rabbit_exchange_type.erl +++ /dev/null @@ -1,65 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - {description, 0}, - {publish, 2}, - - %% called BEFORE declaration, to check args etc; may exit with #amqp_error{} - {validate, 1}, - - %% called after declaration when previously absent - {create, 1}, - - %% called when recovering - {recover, 2}, - - %% called after exchange deletion. - {delete, 2}, - - %% called after a binding has been added - {add_binding, 2}, - - %% called after bindings have been deleted. - {remove_bindings, 2}, - - %% called when comparing exchanges for equivalence - should return ok or - %% exit with #amqp_error{} - {assert_args_equivalence, 2} - - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_exchange_type_direct.erl b/src/rabbit_exchange_type_direct.erl deleted file mode 100644 index 4f6eb851..00000000 --- a/src/rabbit_exchange_type_direct.erl +++ /dev/null @@ -1,65 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_direct). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, publish/2]). --export([validate/1, create/1, recover/2, delete/2, - add_binding/2, remove_bindings/2, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type direct"}, - {mfa, {rabbit_exchange_type_registry, register, - [<<"direct">>, ?MODULE]}}, - {requires, rabbit_exchange_type_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"direct">>}, - {description, <<"AMQP direct exchange, as per the AMQP specification">>}]. - -publish(#exchange{name = Name}, Delivery = - #delivery{message = #basic_message{routing_key = RoutingKey}}) -> - rabbit_router:deliver(rabbit_router:match_routing_key(Name, RoutingKey), - Delivery). - -validate(_X) -> ok. -create(_X) -> ok. -recover(_X, _Bs) -> ok. -delete(_X, _Bs) -> ok. -add_binding(_X, _B) -> ok. -remove_bindings(_X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_fanout.erl b/src/rabbit_exchange_type_fanout.erl deleted file mode 100644 index 4f9712b1..00000000 --- a/src/rabbit_exchange_type_fanout.erl +++ /dev/null @@ -1,63 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_fanout). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, publish/2]). --export([validate/1, create/1, recover/2, delete/2, - add_binding/2, remove_bindings/2, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type fanout"}, - {mfa, {rabbit_exchange_type_registry, register, - [<<"fanout">>, ?MODULE]}}, - {requires, rabbit_exchange_type_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"fanout">>}, - {description, <<"AMQP fanout exchange, as per the AMQP specification">>}]. - -publish(#exchange{name = Name}, Delivery) -> - rabbit_router:deliver(rabbit_router:match_routing_key(Name, '_'), Delivery). - -validate(_X) -> ok. -create(_X) -> ok. -recover(_X, _Bs) -> ok. -delete(_X, _Bs) -> ok. -add_binding(_X, _B) -> ok. -remove_bindings(_X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_headers.erl b/src/rabbit_exchange_type_headers.erl deleted file mode 100644 index 315e8000..00000000 --- a/src/rabbit_exchange_type_headers.erl +++ /dev/null @@ -1,139 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_headers). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, publish/2]). --export([validate/1, create/1, recover/2, delete/2, - add_binding/2, remove_bindings/2, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type headers"}, - {mfa, {rabbit_exchange_type_registry, register, - [<<"headers">>, ?MODULE]}}, - {requires, rabbit_exchange_type_registry}, - {enables, kernel_ready}]}). - --ifdef(use_specs). --spec(headers_match/2 :: (amqp_table(), amqp_table()) -> boolean()). --endif. - -description() -> - [{name, <<"headers">>}, - {description, <<"AMQP headers exchange, as per the AMQP specification">>}]. - -publish(#exchange{name = Name}, - Delivery = #delivery{message = #basic_message{content = Content}}) -> - Headers = case (Content#content.properties)#'P_basic'.headers of - undefined -> []; - H -> rabbit_misc:sort_field_table(H) - end, - rabbit_router:deliver(rabbit_router:match_bindings( - Name, fun (#binding{args = Spec}) -> - headers_match(Spec, Headers) - end), - Delivery). - -default_headers_match_kind() -> all. - -parse_x_match(<<"all">>) -> all; -parse_x_match(<<"any">>) -> any; -parse_x_match(Other) -> - rabbit_log:warning("Invalid x-match field value ~p; expected all or any", - [Other]), - default_headers_match_kind(). - -%% Horrendous matching algorithm. Depends for its merge-like -%% (linear-time) behaviour on the lists:keysort -%% (rabbit_misc:sort_field_table) that route/3 and -%% rabbit_exchange:{add,delete}_binding/4 do. -%% -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% In other words: REQUIRES BOTH PATTERN AND DATA TO BE SORTED ASCENDING BY KEY. -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% -headers_match(Pattern, Data) -> - MatchKind = case lists:keysearch(<<"x-match">>, 1, Pattern) of - {value, {_, longstr, MK}} -> parse_x_match(MK); - {value, {_, Type, MK}} -> - rabbit_log:warning("Invalid x-match field type ~p " - "(value ~p); expected longstr", - [Type, MK]), - default_headers_match_kind(); - _ -> default_headers_match_kind() - end, - headers_match(Pattern, Data, true, false, MatchKind). - -headers_match([], _Data, AllMatch, _AnyMatch, all) -> - AllMatch; -headers_match([], _Data, _AllMatch, AnyMatch, any) -> - AnyMatch; -headers_match([{<<"x-", _/binary>>, _PT, _PV} | PRest], Data, - AllMatch, AnyMatch, MatchKind) -> - headers_match(PRest, Data, AllMatch, AnyMatch, MatchKind); -headers_match(_Pattern, [], _AllMatch, AnyMatch, MatchKind) -> - headers_match([], [], false, AnyMatch, MatchKind); -headers_match(Pattern = [{PK, _PT, _PV} | _], [{DK, _DT, _DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK > DK -> - headers_match(Pattern, DRest, AllMatch, AnyMatch, MatchKind); -headers_match([{PK, _PT, _PV} | PRest], Data = [{DK, _DT, _DV} | _], - _AllMatch, AnyMatch, MatchKind) when PK < DK -> - headers_match(PRest, Data, false, AnyMatch, MatchKind); -headers_match([{PK, PT, PV} | PRest], [{DK, DT, DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK == DK -> - {AllMatch1, AnyMatch1} = - if - %% It's not properly specified, but a "no value" in a - %% pattern field is supposed to mean simple presence of - %% the corresponding data field. I've interpreted that to - %% mean a type of "void" for the pattern field. - PT == void -> {AllMatch, true}; - %% Similarly, it's not specified, but I assume that a - %% mismatched type causes a mismatched value. - PT =/= DT -> {false, AnyMatch}; - PV == DV -> {AllMatch, true}; - true -> {false, AnyMatch} - end, - headers_match(PRest, DRest, AllMatch1, AnyMatch1, MatchKind). - -validate(_X) -> ok. -create(_X) -> ok. -recover(_X, _Bs) -> ok. -delete(_X, _Bs) -> ok. -add_binding(_X, _B) -> ok. -remove_bindings(_X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_registry.erl b/src/rabbit_exchange_type_registry.erl deleted file mode 100644 index 33ea0e92..00000000 --- a/src/rabbit_exchange_type_registry.erl +++ /dev/null @@ -1,129 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_registry). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([register/2, binary_to_type/1, lookup_module/1]). - --define(SERVER, ?MODULE). --define(ETS_NAME, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> 'ignore' | {'error', term()} | {'ok', pid()}). --spec(register/2 :: (binary(), atom()) -> 'ok'). --spec(binary_to_type/1 :: (binary()) -> atom() | {'error', 'not_found'}). --spec(lookup_module/1 :: (atom()) -> {'ok', atom()} | {'error', 'not_found'}). - --endif. - -%%--------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -register(TypeName, ModuleName) -> - gen_server:call(?SERVER, {register, TypeName, ModuleName}). - -%% This is used with user-supplied arguments (e.g., on exchange -%% declare), so we restrict it to existing atoms only. This means it -%% can throw a badarg, indicating that the type cannot have been -%% registered. -binary_to_type(TypeBin) when is_binary(TypeBin) -> - case catch list_to_existing_atom(binary_to_list(TypeBin)) of - {'EXIT', {badarg, _}} -> {error, not_found}; - TypeAtom -> TypeAtom - end. - -lookup_module(T) when is_atom(T) -> - case ets:lookup(?ETS_NAME, T) of - [{_, Module}] -> - {ok, Module}; - [] -> - {error, not_found} - end. - -%%--------------------------------------------------------------------------- - -internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> - list_to_atom(binary_to_list(TypeBin)). - -internal_register(TypeName, ModuleName) - when is_binary(TypeName), is_atom(ModuleName) -> - ok = sanity_check_module(ModuleName), - true = ets:insert(?ETS_NAME, - {internal_binary_to_type(TypeName), ModuleName}), - ok. - -sanity_check_module(Module) -> - case catch lists:member(rabbit_exchange_type, - lists:flatten( - [Bs || {Attr, Bs} <- - Module:module_info(attributes), - Attr =:= behavior orelse - Attr =:= behaviour])) of - {'EXIT', {undef, _}} -> {error, not_module}; - false -> {error, not_exchange_type}; - true -> ok - end. - -%%--------------------------------------------------------------------------- - -init([]) -> - ?ETS_NAME = ets:new(?ETS_NAME, [protected, set, named_table]), - {ok, none}. - -handle_call({register, TypeName, ModuleName}, _From, State) -> - ok = internal_register(TypeName, ModuleName), - {reply, ok, State}; -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_exchange_type_topic.erl b/src/rabbit_exchange_type_topic.erl deleted file mode 100644 index 0e22d545..00000000 --- a/src/rabbit_exchange_type_topic.erl +++ /dev/null @@ -1,103 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_topic). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, publish/2]). --export([validate/1, create/1, recover/2, delete/2, - add_binding/2, remove_bindings/2, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type topic"}, - {mfa, {rabbit_exchange_type_registry, register, - [<<"topic">>, ?MODULE]}}, - {requires, rabbit_exchange_type_registry}, - {enables, kernel_ready}]}). - --export([topic_matches/2]). - --ifdef(use_specs). --spec(topic_matches/2 :: (binary(), binary()) -> boolean()). --endif. - -description() -> - [{name, <<"topic">>}, - {description, <<"AMQP topic exchange, as per the AMQP specification">>}]. - -publish(#exchange{name = Name}, Delivery = - #delivery{message = #basic_message{routing_key = RoutingKey}}) -> - rabbit_router:deliver(rabbit_router:match_bindings( - Name, fun (#binding{key = BindingKey}) -> - topic_matches(BindingKey, RoutingKey) - end), - Delivery). - -split_topic_key(Key) -> - {ok, KeySplit} = regexp:split(binary_to_list(Key), "\\."), - KeySplit. - -topic_matches(PatternKey, RoutingKey) -> - P = split_topic_key(PatternKey), - R = split_topic_key(RoutingKey), - topic_matches1(P, R). - -topic_matches1(["#"], _R) -> - true; -topic_matches1(["#" | PTail], R) -> - last_topic_match(PTail, [], lists:reverse(R)); -topic_matches1([], []) -> - true; -topic_matches1(["*" | PatRest], [_ | ValRest]) -> - topic_matches1(PatRest, ValRest); -topic_matches1([PatElement | PatRest], [ValElement | ValRest]) - when PatElement == ValElement -> - topic_matches1(PatRest, ValRest); -topic_matches1(_, _) -> - false. - -last_topic_match(P, R, []) -> - topic_matches1(P, R); -last_topic_match(P, R, [BacktrackNext | BacktrackList]) -> - topic_matches1(P, R) or - last_topic_match(P, [BacktrackNext | R], BacktrackList). - -validate(_X) -> ok. -create(_X) -> ok. -recover(_X, _Bs) -> ok. -delete(_X, _Bs) -> ok. -add_binding(_X, _B) -> ok. -remove_bindings(_X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_framing.erl b/src/rabbit_framing.erl deleted file mode 100644 index 2d4d1ce4..00000000 --- a/src/rabbit_framing.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% --module(rabbit_framing). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - - --export([encode_method_fields/2]). --export([decode_method_fields/3]). --export([lookup_method_name/2]). --export([method_id/2]). - --export([method_has_content/1]). --export([is_method_synchronous/1]). --export([method_record/1]). --export([method_fieldnames/1]). --export([decode_properties/2]). --export([encode_properties/1]). --export([lookup_amqp_exception/1]). --export([amqp_exception/1]). - -%% Method signatures --ifdef(use_specs). --spec(encode_method_fields/2 :: (amqp_method_record(), protocol()) -> binary()). --spec(decode_method_fields/3 :: (amqp_method_name(), binary(), protocol()) -> - amqp_method_record()). --spec(lookup_method_name/2 :: (amqp_method(), protocol()) -> - amqp_method_name()). --spec(method_id/2 :: (amqp_method_name(), protocol()) -> amqp_method()). - --spec(method_has_content/1 :: (amqp_method_name()) -> boolean()). --spec(is_method_synchronous/1 :: (amqp_method_record()) -> boolean()). --spec(method_record/1 :: (amqp_method_name()) -> amqp_method_record()). --spec(method_fieldnames/1 :: (amqp_method_name()) -> - [amqp_method_field_name()]). --spec(decode_properties/2 :: (non_neg_integer(), binary()) -> - amqp_property_record()). --spec(encode_properties/1 :: (amqp_method_record()) -> binary()). --spec(lookup_amqp_exception/1 :: - (amqp_exception()) -> {boolean(), amqp_exception_code(), binary()}). --spec(amqp_exception/1 :: (amqp_exception_code()) -> amqp_exception()). --endif. % use_specs - -encode_method_fields(MethodRecord, amqp_0_9_1) -> - rabbit_framing_amqp_0_9_1:encode_method_fields(MethodRecord); -encode_method_fields(MethodRecord, amqp_0_8) -> - rabbit_framing_amqp_0_8:encode_method_fields(MethodRecord). - -decode_method_fields(MethodName, FieldsBin, amqp_0_9_1) -> - rabbit_framing_amqp_0_9_1:decode_method_fields(MethodName, FieldsBin); -decode_method_fields(MethodName, FieldsBin, amqp_0_8) -> - rabbit_framing_amqp_0_8:decode_method_fields(MethodName, FieldsBin). - -lookup_method_name(ClassMethod, amqp_0_9_1) -> - rabbit_framing_amqp_0_9_1:lookup_method_name(ClassMethod); -lookup_method_name(ClassMethod, amqp_0_8) -> - rabbit_framing_amqp_0_8:lookup_method_name(ClassMethod). - -method_id(MethodName, amqp_0_9_1) -> - rabbit_framing_amqp_0_9_1:method_id(MethodName); -method_id(MethodName, amqp_0_8) -> - rabbit_framing_amqp_0_8:method_id(MethodName). - - - -%% These ones don't make any difference, let's just use 0-9-1. -method_has_content(X) -> rabbit_framing_amqp_0_9_1:method_has_content(X). -method_record(X) -> rabbit_framing_amqp_0_9_1:method_record(X). -method_fieldnames(X) -> rabbit_framing_amqp_0_9_1:method_fieldnames(X). -encode_properties(X) -> rabbit_framing_amqp_0_9_1:encode_properties(X). -amqp_exception(X) -> rabbit_framing_amqp_0_9_1:amqp_exception(X). -lookup_amqp_exception(X) -> rabbit_framing_amqp_0_9_1:lookup_amqp_exception(X). -is_method_synchronous(X) -> rabbit_framing_amqp_0_9_1:is_method_synchronous(X). -decode_properties(X, Y) -> rabbit_framing_amqp_0_9_1:decode_properties(X, Y). diff --git a/src/rabbit_framing_channel.erl b/src/rabbit_framing_channel.erl deleted file mode 100644 index 161dfd84..00000000 --- a/src/rabbit_framing_channel.erl +++ /dev/null @@ -1,132 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_framing_channel). --include("rabbit.hrl"). - --export([start_link/2, process/2, shutdown/1]). - -%% internal --export([mainloop/1]). - -%%-------------------------------------------------------------------- - -start_link(StartFun, StartArgs) -> - spawn_link( - fun () -> - %% we trap exits so that a normal termination of the - %% channel or reader process terminates us too. - process_flag(trap_exit, true), - mainloop(apply(StartFun, StartArgs)) - end). - -process(Pid, Frame) -> - Pid ! {frame, Frame}, - ok. - -shutdown(Pid) -> - Pid ! terminate, - ok. - -%%-------------------------------------------------------------------- - -read_frame(ChannelPid) -> - receive - %% converting the exit signal into one of our own ensures that - %% the reader sees the right pid (i.e. ours) when a channel - %% exits. Similarly in the other direction, though it is not - %% really relevant there since the channel is not specifically - %% watching out for reader exit signals. - {'EXIT', _Pid, Reason} -> exit(Reason); - {frame, Frame} -> Frame; - terminate -> rabbit_channel:shutdown(ChannelPid), - read_frame(ChannelPid); - Msg -> exit({unexpected_message, Msg}) - end. - -mainloop(ChannelPid) -> - Decoded = read_frame(ChannelPid), - case Decoded of - {method, MethodName, FieldsBin} -> - Method = rabbit_framing:decode_method_fields(MethodName, FieldsBin), - case rabbit_framing:method_has_content(MethodName) of - true -> rabbit_channel:do(ChannelPid, Method, - collect_content(ChannelPid, - MethodName)); - false -> rabbit_channel:do(ChannelPid, Method) - end, - ?MODULE:mainloop(ChannelPid); - _ -> - rabbit_misc:protocol_error( - unexpected_frame, - "expected method frame, got ~p instead", - [Decoded]) - end. - -collect_content(ChannelPid, MethodName) -> - {ClassId, _MethodId} = rabbit_framing:method_id(MethodName), - case read_frame(ChannelPid) of - {content_header, HeaderClassId, 0, BodySize, PropertiesBin} -> - if HeaderClassId == ClassId -> - Payload = collect_content_payload(ChannelPid, BodySize, []), - #content{class_id = ClassId, - properties = none, - properties_bin = PropertiesBin, - payload_fragments_rev = Payload}; - true -> - rabbit_misc:protocol_error( - unexpected_frame, - "expected content header for class ~w, " - "got one for class ~w instead", - [ClassId, HeaderClassId]) - end; - _ -> - rabbit_misc:protocol_error( - unexpected_frame, - "expected content header for class ~w, " - "got non content header frame instead", - [ClassId]) - end. - -collect_content_payload(_ChannelPid, 0, Acc) -> - Acc; -collect_content_payload(ChannelPid, RemainingByteCount, Acc) -> - case read_frame(ChannelPid) of - {content_body, FragmentBin} -> - collect_content_payload(ChannelPid, - RemainingByteCount - size(FragmentBin), - [FragmentBin | Acc]); - _ -> - rabbit_misc:protocol_error( - unexpected_frame, - "expected content body, got non content body frame instead", - []) - end. diff --git a/src/rabbit_invariable_queue.erl b/src/rabbit_invariable_queue.erl deleted file mode 100644 index a7ca20c8..00000000 --- a/src/rabbit_invariable_queue.erl +++ /dev/null @@ -1,276 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_invariable_queue). - --export([init/3, terminate/1, delete_and_terminate/1, purge/1, publish/2, - publish_delivered/3, fetch/2, ack/2, tx_publish/3, tx_ack/3, - tx_rollback/2, tx_commit/3, requeue/2, len/1, is_empty/1, - set_ram_duration_target/2, ram_duration/1, needs_sync/1, sync/1, - handle_pre_hibernate/1, status/1]). - --export([start/1]). - --behaviour(rabbit_backing_queue). - --include("rabbit.hrl"). - --record(iv_state, { queue, qname, durable, len, pending_ack }). --record(tx, { pending_messages, pending_acks, is_persistent }). - --ifdef(use_specs). - --type(ack() :: guid() | 'blank_ack'). --type(state() :: #iv_state { queue :: queue(), - qname :: queue_name(), - len :: non_neg_integer(), - pending_ack :: dict() - }). --include("rabbit_backing_queue_spec.hrl"). - --endif. - -start(DurableQueues) -> - ok = rabbit_sup:start_child(rabbit_persister, [DurableQueues]). - -init(QName, IsDurable, Recover) -> - Q = queue:from_list(case IsDurable andalso Recover of - true -> rabbit_persister:queue_content(QName); - false -> [] - end), - #iv_state { queue = Q, - qname = QName, - durable = IsDurable, - len = queue:len(Q), - pending_ack = dict:new() }. - -terminate(State) -> - State #iv_state { queue = queue:new(), len = 0, pending_ack = dict:new() }. - -delete_and_terminate(State = #iv_state { qname = QName, durable = IsDurable, - pending_ack = PA }) -> - ok = persist_acks(QName, IsDurable, none, dict:fetch_keys(PA), PA), - {_PLen, State1} = purge(State), - terminate(State1). - -purge(State = #iv_state { queue = Q, qname = QName, durable = IsDurable, - len = Len }) -> - %% We do not purge messages pending acks. - {AckTags, PA} = - rabbit_misc:queue_fold( - fun ({#basic_message { is_persistent = false }, _IsDelivered}, Acc) -> - Acc; - ({Msg = #basic_message { guid = Guid }, IsDelivered}, - {AckTagsN, PAN}) -> - ok = persist_delivery(QName, IsDurable, IsDelivered, Msg), - {[Guid | AckTagsN], dict:store(Guid, Msg, PAN)} - end, {[], dict:new()}, Q), - ok = persist_acks(QName, IsDurable, none, AckTags, PA), - {Len, State #iv_state { len = 0, queue = queue:new() }}. - -publish(Msg, State = #iv_state { queue = Q, qname = QName, durable = IsDurable, - len = Len }) -> - ok = persist_message(QName, IsDurable, none, Msg), - State #iv_state { queue = queue:in({Msg, false}, Q), len = Len + 1 }. - -publish_delivered(false, _Msg, State) -> - {blank_ack, State}; -publish_delivered(true, Msg = #basic_message { guid = Guid }, - State = #iv_state { qname = QName, durable = IsDurable, - len = 0, pending_ack = PA }) -> - ok = persist_message(QName, IsDurable, none, Msg), - ok = persist_delivery(QName, IsDurable, false, Msg), - {Guid, State #iv_state { pending_ack = dict:store(Guid, Msg, PA) }}. - -fetch(_AckRequired, State = #iv_state { len = 0 }) -> - {empty, State}; -fetch(AckRequired, State = #iv_state { len = Len, queue = Q, qname = QName, - durable = IsDurable, - pending_ack = PA }) -> - {{value, {Msg = #basic_message { guid = Guid }, IsDelivered}}, Q1} = - queue:out(Q), - Len1 = Len - 1, - ok = persist_delivery(QName, IsDurable, IsDelivered, Msg), - PA1 = dict:store(Guid, Msg, PA), - {AckTag, PA2} = case AckRequired of - true -> {Guid, PA1}; - false -> ok = persist_acks(QName, IsDurable, none, - [Guid], PA1), - {blank_ack, PA} - end, - {{Msg, IsDelivered, AckTag, Len1}, - State #iv_state { queue = Q1, len = Len1, pending_ack = PA2 }}. - -ack(AckTags, State = #iv_state { qname = QName, durable = IsDurable, - pending_ack = PA }) -> - ok = persist_acks(QName, IsDurable, none, AckTags, PA), - PA1 = remove_acks(AckTags, PA), - State #iv_state { pending_ack = PA1 }. - -tx_publish(Txn, Msg, State = #iv_state { qname = QName, - durable = IsDurable }) -> - Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_messages = [Msg | Pubs] }), - ok = persist_message(QName, IsDurable, Txn, Msg), - State. - -tx_ack(Txn, AckTags, State = #iv_state { qname = QName, durable = IsDurable, - pending_ack = PA }) -> - Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), - ok = persist_acks(QName, IsDurable, Txn, AckTags, PA), - State. - -tx_rollback(Txn, State = #iv_state { qname = QName }) -> - #tx { pending_acks = AckTags } = lookup_tx(Txn), - ok = do_if_persistent(fun rabbit_persister:rollback_transaction/1, - Txn, QName), - erase_tx(Txn), - {lists:flatten(AckTags), State}. - -tx_commit(Txn, Fun, State = #iv_state { qname = QName, pending_ack = PA, - queue = Q, len = Len }) -> - #tx { pending_acks = AckTags, pending_messages = PubsRev } = lookup_tx(Txn), - ok = do_if_persistent(fun rabbit_persister:commit_transaction/1, - Txn, QName), - erase_tx(Txn), - Fun(), - AckTags1 = lists:flatten(AckTags), - PA1 = remove_acks(AckTags1, PA), - {Q1, Len1} = lists:foldr(fun (Msg, {QN, LenN}) -> - {queue:in({Msg, false}, QN), LenN + 1} - end, {Q, Len}, PubsRev), - {AckTags1, State #iv_state { pending_ack = PA1, queue = Q1, len = Len1 }}. - -requeue(AckTags, State = #iv_state { pending_ack = PA, queue = Q, - len = Len }) -> - %% We don't need to touch the persister here - the persister will - %% already have these messages published and delivered as - %% necessary. The complication is that the persister's seq_id will - %% now be wrong, given the position of these messages in our queue - %% here. However, the persister's seq_id is only used for sorting - %% on startup, and requeue is silent as to where the requeued - %% messages should appear, thus the persister is permitted to sort - %% based on seq_id, even though it'll likely give a different - %% order to the last known state of our queue, prior to shutdown. - {Q1, Len1} = lists:foldl( - fun (Guid, {QN, LenN}) -> - {ok, Msg = #basic_message {}} = dict:find(Guid, PA), - {queue:in({Msg, true}, QN), LenN + 1} - end, {Q, Len}, AckTags), - PA1 = remove_acks(AckTags, PA), - State #iv_state { pending_ack = PA1, queue = Q1, len = Len1 }. - -len(#iv_state { len = Len }) -> Len. - -is_empty(State) -> 0 == len(State). - -set_ram_duration_target(_DurationTarget, State) -> State. - -ram_duration(State) -> {0, State}. - -needs_sync(_State) -> false. - -sync(State) -> State. - -handle_pre_hibernate(State) -> State. - -status(_State) -> []. - -%%---------------------------------------------------------------------------- - -remove_acks(AckTags, PA) -> lists:foldl(fun dict:erase/2, PA, AckTags). - -%%---------------------------------------------------------------------------- - -lookup_tx(Txn) -> - case get({txn, Txn}) of - undefined -> #tx { pending_messages = [], - pending_acks = [], - is_persistent = false }; - V -> V - end. - -store_tx(Txn, Tx) -> - put({txn, Txn}, Tx). - -erase_tx(Txn) -> - erase({txn, Txn}). - -mark_tx_persistent(Txn) -> - store_tx(Txn, (lookup_tx(Txn)) #tx { is_persistent = true }). - -is_tx_persistent(Txn) -> - (lookup_tx(Txn)) #tx.is_persistent. - -do_if_persistent(F, Txn, QName) -> - ok = case is_tx_persistent(Txn) of - false -> ok; - true -> F({Txn, QName}) - end. - -%%---------------------------------------------------------------------------- - -persist_message(QName, true, Txn, Msg = #basic_message { - is_persistent = true }) -> - Msg1 = Msg #basic_message { - %% don't persist any recoverable decoded properties, - %% rebuild from properties_bin on restore - content = rabbit_binary_parser:clear_decoded_content( - Msg #basic_message.content)}, - persist_work(Txn, QName, - [{publish, Msg1, {QName, Msg1 #basic_message.guid}}]); -persist_message(_QName, _IsDurable, _Txn, _Msg) -> - ok. - -persist_delivery(QName, true, false, #basic_message { is_persistent = true, - guid = Guid }) -> - persist_work(none, QName, [{deliver, {QName, Guid}}]); -persist_delivery(_QName, _IsDurable, _IsDelivered, _Msg) -> - ok. - -persist_acks(QName, true, Txn, AckTags, PA) -> - persist_work(Txn, QName, - [{ack, {QName, Guid}} || Guid <- AckTags, - begin - {ok, Msg} = dict:find(Guid, PA), - Msg #basic_message.is_persistent - end]); -persist_acks(_QName, _IsDurable, _Txn, _AckTags, _PA) -> - ok. - -persist_work(_Txn,_QName, []) -> - ok; -persist_work(none, _QName, WorkList) -> - rabbit_persister:dirty_work(WorkList); -persist_work(Txn, QName, WorkList) -> - mark_tx_persistent(Txn), - rabbit_persister:extend_transaction({Txn, QName}, WorkList). diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl deleted file mode 100644 index 878af029..00000000 --- a/src/rabbit_limiter.erl +++ /dev/null @@ -1,255 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_limiter). - --behaviour(gen_server2). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2]). --export([start_link/2, shutdown/1]). --export([limit/2, can_send/3, ack/2, register/2, unregister/2]). --export([get_limit/1, block/1, unblock/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(maybe_pid() :: pid() | 'undefined'). - --spec(start_link/2 :: (pid(), non_neg_integer()) -> pid()). --spec(shutdown/1 :: (maybe_pid()) -> 'ok'). --spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok' | 'stopped'). --spec(can_send/3 :: (maybe_pid(), pid(), boolean()) -> boolean()). --spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(get_limit/1 :: (maybe_pid()) -> non_neg_integer()). --spec(block/1 :: (maybe_pid()) -> 'ok'). --spec(unblock/1 :: (maybe_pid()) -> 'ok' | 'stopped'). - --endif. - -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = dict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - -%%---------------------------------------------------------------------------- -%% API -%%---------------------------------------------------------------------------- - -start_link(ChPid, UnackedMsgCount) -> - {ok, Pid} = gen_server2:start_link(?MODULE, [ChPid, UnackedMsgCount], []), - Pid. - -shutdown(undefined) -> - ok; -shutdown(LimiterPid) -> - true = unlink(LimiterPid), - gen_server2:cast(LimiterPid, shutdown). - -limit(undefined, 0) -> - ok; -limit(LimiterPid, PrefetchCount) -> - unlink_on_stopped(LimiterPid, - gen_server2:call(LimiterPid, {limit, PrefetchCount})). - -%% Ask the limiter whether the queue can deliver a message without -%% breaching a limit -can_send(undefined, _QPid, _AckRequired) -> - true; -can_send(LimiterPid, QPid, AckRequired) -> - rabbit_misc:with_exit_handler( - fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, - infinity) end). - -%% Let the limiter know that the channel has received some acks from a -%% consumer -ack(undefined, _Count) -> ok; -ack(LimiterPid, Count) -> gen_server2:cast(LimiterPid, {ack, Count}). - -register(undefined, _QPid) -> ok; -register(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {register, QPid}). - -unregister(undefined, _QPid) -> ok; -unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}). - -get_limit(undefined) -> - 0; -get_limit(Pid) -> - rabbit_misc:with_exit_handler( - fun () -> 0 end, - fun () -> gen_server2:pcall(Pid, 9, get_limit, infinity) end). - -block(undefined) -> - ok; -block(LimiterPid) -> - gen_server2:call(LimiterPid, block, infinity). - -unblock(undefined) -> - ok; -unblock(LimiterPid) -> - unlink_on_stopped(LimiterPid, - gen_server2:call(LimiterPid, unblock, infinity)). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([ChPid, UnackedMsgCount]) -> - {ok, #lim{ch_pid = ChPid, volume = UnackedMsgCount}}. - -handle_call({can_send, _QPid, _AckRequired}, _From, - State = #lim{blocked = true}) -> - {reply, false, State}; -handle_call({can_send, QPid, AckRequired}, _From, - State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} - end; - -handle_call(get_limit, _From, State = #lim{prefetch_count = PrefetchCount}) -> - {reply, PrefetchCount, State}; - -handle_call({limit, PrefetchCount}, _From, State) -> - case maybe_notify(State, State#lim{prefetch_count = PrefetchCount}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(block, _From, State) -> - {reply, ok, State#lim{blocked = true}}; - -handle_call(unblock, _From, State) -> - case maybe_notify(State, State#lim{blocked = false}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end. - -handle_cast(shutdown, State) -> - {stop, normal, State}; - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {cont, State1} = maybe_notify(State, State#lim{volume = NewVolume}), - {noreply, State1}; - -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; - -handle_cast({unregister, QPid}, State) -> - {noreply, forget_queue(QPid, State)}. - -handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> - {noreply, forget_queue(QPid, State)}. - -terminate(_, _) -> - ok. - -code_change(_, State, _) -> - State. - -%%---------------------------------------------------------------------------- -%% Internal plumbing -%%---------------------------------------------------------------------------- - -maybe_notify(OldState, NewState) -> - case (limit_reached(OldState) orelse is_blocked(OldState)) andalso - not (limit_reached(NewState) orelse is_blocked(NewState)) of - true -> NewState1 = notify_queues(NewState), - {case NewState1#lim.prefetch_count of - 0 -> stop; - _ -> cont - end, NewState1}; - false -> {cont, NewState} - end. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -is_blocked(#lim{blocked = Blocked}) -> Blocked. - -remember_queue(QPid, State = #lim{queues = Queues}) -> - case dict:is_key(QPid, Queues) of - false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = dict:store(QPid, {MRef, false}, Queues)}; - true -> State - end. - -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> - case dict:find(QPid, Queues) of - {ok, {MRef, _}} -> - true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), - State#lim{queues = dict:erase(QPid, Queues)}; - error -> State - end. - -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, - State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. - -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - dict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], dict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, - State#lim{queues = NewQueues}. - -unlink_on_stopped(LimiterPid, stopped) -> - ok = rabbit_misc:unlink_and_capture_exit(LimiterPid), - stopped; -unlink_on_stopped(_LimiterPid, Result) -> - Result. diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl deleted file mode 100644 index e78b59f1..00000000 --- a/src/rabbit_memory_monitor.erl +++ /dev/null @@ -1,294 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - - -%% This module handles the node-wide memory statistics. -%% It receives statistics from all queues, counts the desired -%% queue length (in seconds), and sends this information back to -%% queues. - --module(rabbit_memory_monitor). - --behaviour(gen_server2). - --export([start_link/0, update/0, register/2, deregister/1, - report_ram_duration/2, stop/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(process, {pid, reported, sent, callback, monitor}). - --record(state, {timer, %% 'internal_update' timer - queue_durations, %% ets #process - queue_duration_sum, %% sum of all queue_durations - queue_duration_count, %% number of elements in sum - memory_limit, %% how much memory we intend to use - desired_duration %% the desired queue duration - }). - --define(SERVER, ?MODULE). --define(DEFAULT_UPDATE_INTERVAL, 2500). --define(TABLE_NAME, ?MODULE). - -%% Because we have a feedback loop here, we need to ensure that we -%% have some space for when the queues don't quite respond as fast as -%% we would like, or when there is buffering going on in other parts -%% of the system. In short, we aim to stay some distance away from -%% when the memory alarms will go off, which cause channel.flow. -%% Note that all other Thresholds are relative to this scaling. --define(MEMORY_LIMIT_SCALING, 0.4). - --define(LIMIT_THRESHOLD, 0.5). %% don't limit queues when mem use is < this - -%% If all queues are pushed to disk (duration 0), then the sum of -%% their reported lengths will be 0. If memory then becomes available, -%% unless we manually intervene, the sum will remain 0, and the queues -%% will never get a non-zero duration. Thus when the mem use is < -%% SUM_INC_THRESHOLD, increase the sum artificially by SUM_INC_AMOUNT. --define(SUM_INC_THRESHOLD, 0.95). --define(SUM_INC_AMOUNT, 1.0). - -%% If user disabled vm_memory_monitor, let's assume 1GB of memory we can use. --define(MEMORY_SIZE_FOR_DISABLED_VMM, 1073741824). - --define(EPSILON, 0.000001). %% less than this and we clamp to 0 - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> 'ignore' | {'error', _} | {'ok', pid()}). --spec(update/0 :: () -> 'ok'). --spec(register/2 :: (pid(), {atom(),atom(),[any()]}) -> 'ok'). --spec(deregister/1 :: (pid()) -> 'ok'). --spec(report_ram_duration/2 :: (pid(), float() | 'infinity') -> - number() | 'infinity'). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -update() -> - gen_server2:cast(?SERVER, update). - -register(Pid, MFA = {_M, _F, _A}) -> - gen_server2:call(?SERVER, {register, Pid, MFA}, infinity). - -deregister(Pid) -> - gen_server2:cast(?SERVER, {deregister, Pid}). - -report_ram_duration(Pid, QueueDuration) -> - gen_server2:call(?SERVER, - {report_ram_duration, Pid, QueueDuration}, infinity). - -stop() -> - gen_server2:cast(?SERVER, stop). - -%%---------------------------------------------------------------------------- -%% Gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - MemoryLimit = trunc(?MEMORY_LIMIT_SCALING * - (try - vm_memory_monitor:get_memory_limit() - catch - exit:{noproc, _} -> ?MEMORY_SIZE_FOR_DISABLED_VMM - end)), - - {ok, TRef} = timer:apply_interval(?DEFAULT_UPDATE_INTERVAL, - ?SERVER, update, []), - - Ets = ets:new(?TABLE_NAME, [set, private, {keypos, #process.pid}]), - - {ok, internal_update( - #state { timer = TRef, - queue_durations = Ets, - queue_duration_sum = 0.0, - queue_duration_count = 0, - memory_limit = MemoryLimit, - desired_duration = infinity })}. - -handle_call({report_ram_duration, Pid, QueueDuration}, From, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations, - desired_duration = SendDuration }) -> - - [Proc = #process { reported = PrevQueueDuration }] = - ets:lookup(Durations, Pid), - - gen_server2:reply(From, SendDuration), - - {Sum1, Count1} = - case {PrevQueueDuration, QueueDuration} of - {infinity, infinity} -> {Sum, Count}; - {infinity, _} -> {Sum + QueueDuration, Count + 1}; - {_, infinity} -> {Sum - PrevQueueDuration, Count - 1}; - {_, _} -> {Sum - PrevQueueDuration + QueueDuration, - Count} - end, - true = ets:insert(Durations, Proc #process { reported = QueueDuration, - sent = SendDuration }), - {noreply, State #state { queue_duration_sum = zero_clamp(Sum1), - queue_duration_count = Count1 }}; - -handle_call({register, Pid, MFA}, _From, - State = #state { queue_durations = Durations }) -> - MRef = erlang:monitor(process, Pid), - true = ets:insert(Durations, #process { pid = Pid, reported = infinity, - sent = infinity, callback = MFA, - monitor = MRef }), - {reply, ok, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast({deregister, Pid}, State) -> - {noreply, internal_deregister(Pid, true, State)}; - -handle_cast(stop, State) -> - {stop, normal, State}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, State) -> - {noreply, internal_deregister(Pid, false, State)}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state { timer = TRef }) -> - timer:cancel(TRef), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -zero_clamp(Sum) -> - case Sum < ?EPSILON of - true -> 0.0; - false -> Sum - end. - -internal_deregister(Pid, Demonitor, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations }) -> - case ets:lookup(Durations, Pid) of - [] -> State; - [#process { reported = PrevQueueDuration, monitor = MRef }] -> - true = case Demonitor of - true -> erlang:demonitor(MRef); - false -> true - end, - {Sum1, Count1} = - case PrevQueueDuration of - infinity -> {Sum, Count}; - _ -> {zero_clamp(Sum - PrevQueueDuration), - Count - 1} - end, - true = ets:delete(Durations, Pid), - State #state { queue_duration_sum = Sum1, - queue_duration_count = Count1 } - end. - -internal_update(State = #state { memory_limit = Limit, - queue_durations = Durations, - desired_duration = DesiredDurationAvg, - queue_duration_sum = Sum, - queue_duration_count = Count }) -> - MemoryRatio = erlang:memory(total) / Limit, - DesiredDurationAvg1 = - case MemoryRatio < ?LIMIT_THRESHOLD orelse Count == 0 of - true -> - infinity; - false -> - Sum1 = case MemoryRatio < ?SUM_INC_THRESHOLD of - true -> Sum + ?SUM_INC_AMOUNT; - false -> Sum - end, - (Sum1 / Count) / MemoryRatio - end, - State1 = State #state { desired_duration = DesiredDurationAvg1 }, - - %% only inform queues immediately if the desired duration has - %% decreased - case DesiredDurationAvg1 == infinity orelse - (DesiredDurationAvg /= infinity andalso - DesiredDurationAvg1 >= DesiredDurationAvg) of - true -> - ok; - false -> - true = - ets:foldl( - fun (Proc = #process { reported = QueueDuration, - sent = PrevSendDuration, - callback = {M, F, A} }, true) -> - case (case {QueueDuration, PrevSendDuration} of - {infinity, infinity} -> - true; - {infinity, D} -> - DesiredDurationAvg1 < D; - {D, infinity} -> - DesiredDurationAvg1 < D; - {D1, D2} -> - DesiredDurationAvg1 < - lists:min([D1,D2]) - end) of - true -> - ok = erlang:apply( - M, F, A ++ [DesiredDurationAvg1]), - ets:insert( - Durations, - Proc #process {sent = DesiredDurationAvg1}); - false -> - true - end - end, true, Durations) - end, - State1. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl deleted file mode 100644 index d4b29943..00000000 --- a/src/rabbit_mnesia.erl +++ /dev/null @@ -1,466 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_mnesia). - --export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/1, reset/0, force_reset/0, is_clustered/0, - empty_ram_only_tables/0]). - --export([table_names/0]). - -%% create_tables/0 exported for helping embed RabbitMQ in or alongside -%% other mnesia-using Erlang applications, such as ejabberd --export([create_tables/0]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(status/0 :: () -> [{'nodes', [{node_type(), [erlang_node()]}]} | - {'running_nodes', [erlang_node()]}]). --spec(dir/0 :: () -> file_path()). --spec(ensure_mnesia_dir/0 :: () -> 'ok'). --spec(init/0 :: () -> 'ok'). --spec(is_db_empty/0 :: () -> boolean()). --spec(cluster/1 :: ([erlang_node()]) -> 'ok'). --spec(reset/0 :: () -> 'ok'). --spec(force_reset/0 :: () -> 'ok'). --spec(is_clustered/0 :: () -> boolean()). --spec(empty_ram_only_tables/0 :: () -> 'ok'). --spec(create_tables/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -status() -> - [{nodes, case mnesia:system_info(is_running) of - yes -> [{Key, Nodes} || - {Key, CopyType} <- [{disc_only, disc_only_copies}, - {disc, disc_copies}, - {ram, ram_copies}], - begin - Nodes = mnesia:table_info(schema, CopyType), - Nodes =/= [] - end]; - no -> case mnesia:system_info(db_nodes) of - [] -> []; - Nodes -> [{unknown, Nodes}] - end - end}, - {running_nodes, mnesia:system_info(running_db_nodes)}]. - -init() -> - ok = ensure_mnesia_running(), - ok = ensure_mnesia_dir(), - ok = init_db(read_cluster_nodes_config()), - ok = wait_for_tables(), - ok. - -is_db_empty() -> - lists:all(fun (Tab) -> mnesia:dirty_first(Tab) == '$end_of_table' end, - table_names()). - -%% Alter which disk nodes this node is clustered with. This can be a -%% subset of all the disk nodes in the cluster but can (and should) -%% include the node itself if it is to be a disk rather than a ram -%% node. -cluster(ClusterNodes) -> - ok = ensure_mnesia_not_running(), - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - try - ok = init_db(ClusterNodes), - ok = wait_for_tables(), - ok = create_cluster_nodes_config(ClusterNodes) - after - mnesia:stop() - end, - ok. - -%% return node to its virgin state, where it is not member of any -%% cluster, has no cluster configuration, no local database, and no -%% persisted messages -reset() -> reset(false). -force_reset() -> reset(true). - -is_clustered() -> - RunningNodes = mnesia:system_info(running_db_nodes), - [node()] /= RunningNodes andalso [] /= RunningNodes. - -empty_ram_only_tables() -> - Node = node(), - lists:foreach( - fun (TabName) -> - case lists:member(Node, mnesia:table_info(TabName, ram_copies)) of - true -> {atomic, ok} = mnesia:clear_table(TabName); - false -> ok - end - end, table_names()), - ok. - -%%-------------------------------------------------------------------- - -table_definitions() -> - [{rabbit_user, - [{record_name, user}, - {attributes, record_info(fields, user)}, - {disc_copies, [node()]}]}, - {rabbit_user_permission, - [{record_name, user_permission}, - {attributes, record_info(fields, user_permission)}, - {disc_copies, [node()]}]}, - {rabbit_vhost, - [{record_name, vhost}, - {attributes, record_info(fields, vhost)}, - {disc_copies, [node()]}]}, - {rabbit_config, - [{disc_copies, [node()]}]}, - {rabbit_listener, - [{record_name, listener}, - {attributes, record_info(fields, listener)}, - {type, bag}]}, - {rabbit_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {disc_copies, [node()]}]}, - {rabbit_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}]}, - {rabbit_reverse_route, - [{record_name, reverse_route}, - {attributes, record_info(fields, reverse_route)}, - {type, ordered_set}]}, - {rabbit_durable_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {disc_copies, [node()]}]}, - {rabbit_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}]}, - {rabbit_durable_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {disc_copies, [node()]}]}, - {rabbit_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}]}]. - -table_names() -> - [Tab || {Tab, _} <- table_definitions()]. - -replicated_table_names() -> - [Tab || {Tab, Attrs} <- table_definitions(), - not lists:member({local_content, true}, Attrs) - ]. - -dir() -> mnesia:system_info(directory). - -ensure_mnesia_dir() -> - MnesiaDir = dir() ++ "/", - case filelib:ensure_dir(MnesiaDir) of - {error, Reason} -> - throw({error, {cannot_create_mnesia_dir, MnesiaDir, Reason}}); - ok -> ok - end. - -ensure_mnesia_running() -> - case mnesia:system_info(is_running) of - yes -> ok; - no -> throw({error, mnesia_not_running}) - end. - -ensure_mnesia_not_running() -> - case mnesia:system_info(is_running) of - no -> ok; - yes -> throw({error, mnesia_unexpectedly_running}) - end. - -check_schema_integrity() -> - %%TODO: more thorough checks - case catch [mnesia:table_info(Tab, version) || Tab <- table_names()] of - {'EXIT', Reason} -> {error, Reason}; - _ -> ok - end. - -%% The cluster node config file contains some or all of the disk nodes -%% that are members of the cluster this node is / should be a part of. -%% -%% If the file is absent, the list is empty, or only contains the -%% current node, then the current node is a standalone (disk) -%% node. Otherwise it is a node that is part of a cluster as either a -%% disk node, if it appears in the cluster node config, or ram node if -%% it doesn't. - -cluster_nodes_config_filename() -> - dir() ++ "/cluster_nodes.config". - -create_cluster_nodes_config(ClusterNodes) -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:write_term_file(FileName, [ClusterNodes]) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_cluster_nodes_config, - FileName, Reason}}) - end. - -read_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - case application:get_env(cluster_config) of - undefined -> []; - {ok, DefaultFileName} -> - case file:consult(DefaultFileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - error_logger:warning_msg( - "default cluster config file ~p does not exist~n", - [DefaultFileName]), - []; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - DefaultFileName, Reason}}) - end - end; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - FileName, Reason}}) - end. - -delete_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> - throw({error, {cannot_delete_cluster_nodes_config, - FileName, Reason}}) - end. - -%% Take a cluster node config and create the right kind of node - a -%% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. -init_db(ClusterNodes) -> - case mnesia:change_config(extra_db_nodes, ClusterNodes -- [node()]) of - {ok, []} -> - case mnesia:system_info(use_dir) of - true -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - %% NB: we cannot use rabbit_log here since - %% it may not have been started yet - error_logger:warning_msg( - "schema integrity check failed: ~p~n" - "moving database to backup location " - "and recreating schema from scratch~n", - [Reason]), - ok = move_db(), - ok = create_schema() - end; - false -> - ok = create_schema() - end; - {ok, [_|_]} -> - IsDiskNode = ClusterNodes == [] orelse - lists:member(node(), ClusterNodes), - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_table_copies(case IsDiskNode of - true -> disc; - false -> ram - end); - {error, Reason} -> - %% one reason we may end up here is if we try to join - %% nodes together that are currently running standalone or - %% are members of a different cluster - throw({error, {unable_to_join_cluster, - ClusterNodes, Reason}}) - end. - -create_schema() -> - mnesia:stop(), - rabbit_misc:ensure_ok(mnesia:create_schema([node()]), - cannot_create_schema), - rabbit_misc:ensure_ok(mnesia:start(), - cannot_start_mnesia), - create_tables(). - -move_db() -> - mnesia:stop(), - MnesiaDir = filename:dirname(dir() ++ "/"), - {{Year, Month, Day}, {Hour, Minute, Second}} = erlang:universaltime(), - BackupDir = lists:flatten( - io_lib:format("~s_~w~2..0w~2..0w~2..0w~2..0w~2..0w", - [MnesiaDir, - Year, Month, Day, Hour, Minute, Second])), - case file:rename(MnesiaDir, BackupDir) of - ok -> - %% NB: we cannot use rabbit_log here since it may not have - %% been started yet - error_logger:warning_msg("moved database from ~s to ~s~n", - [MnesiaDir, BackupDir]), - ok; - {error, Reason} -> throw({error, {cannot_backup_mnesia, - MnesiaDir, BackupDir, Reason}}) - end, - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok. - -create_tables() -> - lists:foreach(fun ({Tab, TabArgs}) -> - case mnesia:create_table(Tab, TabArgs) of - {atomic, ok} -> ok; - {aborted, Reason} -> - throw({error, {table_creation_failed, - Tab, TabArgs, Reason}}) - end - end, - table_definitions()), - ok. - -table_has_copy_type(TabDef, DiscType) -> - lists:member(node(), proplists:get_value(DiscType, TabDef, [])). - -create_local_table_copies(Type) -> - lists:foreach( - fun ({Tab, TabDef}) -> - HasDiscCopies = table_has_copy_type(TabDef, disc_copies), - HasDiscOnlyCopies = table_has_copy_type(TabDef, disc_only_copies), - LocalTab = proplists:get_bool(local_content, TabDef), - StorageType = - if - Type =:= disc orelse LocalTab -> - if - HasDiscCopies -> disc_copies; - HasDiscOnlyCopies -> disc_only_copies; - true -> ram_copies - end; -%% unused code - commented out to keep dialyzer happy -%% Type =:= disc_only -> -%% if -%% HasDiscCopies or HasDiscOnlyCopies -> -%% disc_only_copies; -%% true -> ram_copies -%% end; - Type =:= ram -> - ram_copies - end, - ok = create_local_table_copy(Tab, StorageType) - end, - table_definitions()), - ok. - -create_local_table_copy(Tab, Type) -> - StorageType = mnesia:table_info(Tab, storage_type), - {atomic, ok} = - if - StorageType == unknown -> - mnesia:add_table_copy(Tab, node(), Type); - StorageType /= Type -> - mnesia:change_table_copy_type(Tab, node(), Type); - true -> {atomic, ok} - end, - ok. - -wait_for_replicated_tables() -> wait_for_tables(replicated_table_names()). - -wait_for_tables() -> wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> - case check_schema_integrity() of - ok -> - case mnesia:wait_for_tables(TableNames, 30000) of - ok -> ok; - {timeout, BadTabs} -> - throw({error, {timeout_waiting_for_tables, BadTabs}}); - {error, Reason} -> - throw({error, {failed_waiting_for_tables, Reason}}) - end; - {error, Reason} -> - throw({error, {schema_integrity_check_failed, Reason}}) - end. - -reset(Force) -> - ok = ensure_mnesia_not_running(), - Node = node(), - case Force of - true -> ok; - false -> - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - {Nodes, RunningNodes} = - try - ok = init(), - {mnesia:system_info(db_nodes) -- [Node], - mnesia:system_info(running_db_nodes) -- [Node]} - after - mnesia:stop() - end, - leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) - end, - ok = delete_cluster_nodes_config(), - %% remove persisted messages and any other garbage we find - ok = rabbit_misc:recursive_delete(filelib:wildcard(dir() ++ "/*")), - ok. - -leave_cluster([], _) -> ok; -leave_cluster(Nodes, RunningNodes) -> - %% find at least one running cluster node and instruct it to - %% remove our schema copy which will in turn result in our node - %% being removed as a cluster node from the schema, with that - %% change being propagated to all nodes - case lists:any( - fun (Node) -> - case rpc:call(Node, mnesia, del_table_copy, - [schema, node()]) of - {atomic, ok} -> true; - {badrpc, nodedown} -> false; - {aborted, Reason} -> - throw({error, {failed_to_leave_cluster, - Nodes, RunningNodes, Reason}}) - end - end, - RunningNodes) of - true -> ok; - false -> throw({error, {no_running_cluster_nodes, - Nodes, RunningNodes}}) - end. diff --git a/src/rabbit_msg_store_index.erl b/src/rabbit_msg_store_index.erl deleted file mode 100644 index 0ed64a9d..00000000 --- a/src/rabbit_msg_store_index.erl +++ /dev/null @@ -1,47 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_msg_store_index). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [{new, 1}, - {recover, 1}, - {lookup, 2}, - {insert, 2}, - {update, 2}, - {update_fields, 3}, - {delete, 2}, - {delete_by_file, 2}, - {terminate, 1}]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl deleted file mode 100644 index 8d3c2dc0..00000000 --- a/src/rabbit_persister.erl +++ /dev/null @@ -1,486 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_persister). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([transaction/1, extend_transaction/2, dirty_work/1, - commit_transaction/1, rollback_transaction/1, - force_snapshot/0, queue_content/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - --define(LOG_BUNDLE_DELAY, 5). --define(COMPLETE_BUNDLE_DELAY, 2). - --define(PERSISTER_LOG_FORMAT_VERSION, {2, 6}). - --record(pstate, {log_handle, entry_count, deadline, - pending_logs, pending_replies, snapshot}). - -%% two tables for efficient persistency -%% one maps a key to a message -%% the other maps a key to one or more queues. -%% The aim is to reduce the overload of storing a message multiple times -%% when it appears in several queues. --record(psnapshot, {transactions, messages, queues, next_seq_id}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(pmsg() :: {queue_name(), pkey()}). --type(work_item() :: - {publish, message(), pmsg()} | - {deliver, pmsg()} | - {ack, pmsg()}). - --spec(start_link/1 :: ([queue_name()]) -> - {'ok', pid()} | 'ignore' | {'error', any()}). --spec(transaction/1 :: ([work_item()]) -> 'ok'). --spec(extend_transaction/2 :: ({txn(), queue_name()}, [work_item()]) -> 'ok'). --spec(dirty_work/1 :: ([work_item()]) -> 'ok'). --spec(commit_transaction/1 :: ({txn(), queue_name()}) -> 'ok'). --spec(rollback_transaction/1 :: ({txn(), queue_name()}) -> 'ok'). --spec(force_snapshot/0 :: () -> 'ok'). --spec(queue_content/1 :: (queue_name()) -> [{message(), boolean()}]). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(DurableQueues) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [DurableQueues], []). - -transaction(MessageList) -> - ?LOGDEBUG("transaction ~p~n", [MessageList]), - TxnKey = rabbit_guid:guid(), - gen_server:call(?SERVER, {transaction, TxnKey, MessageList}, infinity). - -extend_transaction(TxnKey, MessageList) -> - ?LOGDEBUG("extend_transaction ~p ~p~n", [TxnKey, MessageList]), - gen_server:cast(?SERVER, {extend_transaction, TxnKey, MessageList}). - -dirty_work(MessageList) -> - ?LOGDEBUG("dirty_work ~p~n", [MessageList]), - gen_server:cast(?SERVER, {dirty_work, MessageList}). - -commit_transaction(TxnKey) -> - ?LOGDEBUG("commit_transaction ~p~n", [TxnKey]), - gen_server:call(?SERVER, {commit_transaction, TxnKey}, infinity). - -rollback_transaction(TxnKey) -> - ?LOGDEBUG("rollback_transaction ~p~n", [TxnKey]), - gen_server:cast(?SERVER, {rollback_transaction, TxnKey}). - -force_snapshot() -> - gen_server:call(?SERVER, force_snapshot, infinity). - -queue_content(QName) -> - gen_server:call(?SERVER, {queue_content, QName}, infinity). - -%%-------------------------------------------------------------------- - -init([DurableQueues]) -> - process_flag(trap_exit, true), - FileName = base_filename(), - ok = filelib:ensure_dir(FileName), - Snapshot = #psnapshot{transactions = dict:new(), - messages = ets:new(messages, []), - queues = ets:new(queues, [ordered_set]), - next_seq_id = 0}, - LogHandle = - case disk_log:open([{name, rabbit_persister}, - {head, current_snapshot(Snapshot)}, - {file, FileName}]) of - {ok, LH} -> LH; - {repaired, LH, {recovered, Recovered}, {badbytes, Bad}} -> - WarningFun = if - Bad > 0 -> fun rabbit_log:warning/2; - true -> fun rabbit_log:info/2 - end, - WarningFun("Repaired persister log - ~p recovered, ~p bad~n", - [Recovered, Bad]), - LH - end, - {Res, NewSnapshot} = - internal_load_snapshot(LogHandle, DurableQueues, Snapshot), - case Res of - ok -> - ok = take_snapshot(LogHandle, NewSnapshot); - {error, Reason} -> - rabbit_log:error("Failed to load persister log: ~p~n", [Reason]), - ok = take_snapshot_and_save_old(LogHandle, NewSnapshot) - end, - State = #pstate{log_handle = LogHandle, - entry_count = 0, - deadline = infinity, - pending_logs = [], - pending_replies = [], - snapshot = NewSnapshot}, - {ok, State}. - -handle_call({transaction, Key, MessageList}, From, State) -> - NewState = internal_extend(Key, MessageList, State), - do_noreply(internal_commit(From, Key, NewState)); -handle_call({commit_transaction, TxnKey}, From, State) -> - do_noreply(internal_commit(From, TxnKey, State)); -handle_call(force_snapshot, _From, State) -> - do_reply(ok, flush(true, State)); -handle_call({queue_content, QName}, _From, - State = #pstate{snapshot = #psnapshot{messages = Messages, - queues = Queues}}) -> - MatchSpec= [{{{QName,'$1'}, '$2', '$3'}, [], [{{'$3', '$1', '$2'}}]}], - do_reply([{ets:lookup_element(Messages, K, 2), D} || - {_, K, D} <- lists:sort(ets:select(Queues, MatchSpec))], - State); -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({rollback_transaction, TxnKey}, State) -> - do_noreply(internal_rollback(TxnKey, State)); -handle_cast({dirty_work, MessageList}, State) -> - do_noreply(internal_dirty_work(MessageList, State)); -handle_cast({extend_transaction, TxnKey, MessageList}, State) -> - do_noreply(internal_extend(TxnKey, MessageList, State)); -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(timeout, State = #pstate{deadline = infinity}) -> - State1 = flush(true, State), - {noreply, State1, hibernate}; -handle_info(timeout, State) -> - do_noreply(flush(State)); -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, State = #pstate{log_handle = LogHandle}) -> - flush(State), - disk_log:close(LogHandle), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, flush(State)}. - -%%-------------------------------------------------------------------- - -internal_extend(Key, MessageList, State) -> - log_work(fun (ML) -> {extend_transaction, Key, ML} end, - MessageList, State). - -internal_dirty_work(MessageList, State) -> - log_work(fun (ML) -> {dirty_work, ML} end, - MessageList, State). - -internal_commit(From, Key, State = #pstate{snapshot = Snapshot}) -> - Unit = {commit_transaction, Key}, - NewSnapshot = internal_integrate1(Unit, Snapshot), - complete(From, Unit, State#pstate{snapshot = NewSnapshot}). - -internal_rollback(Key, State = #pstate{snapshot = Snapshot}) -> - Unit = {rollback_transaction, Key}, - NewSnapshot = internal_integrate1(Unit, Snapshot), - log(State#pstate{snapshot = NewSnapshot}, Unit). - -complete(From, Item, State = #pstate{deadline = ExistingDeadline, - pending_logs = Logs, - pending_replies = Waiting}) -> - State#pstate{deadline = compute_deadline( - ?COMPLETE_BUNDLE_DELAY, ExistingDeadline), - pending_logs = [Item | Logs], - pending_replies = [From | Waiting]}. - -%% This is made to limit disk usage by writing messages only once onto -%% disk. We keep a table associating pkeys to messages, and provided -%% the list of messages to output is left to right, we can guarantee -%% that pkeys will be a backreference to a message in memory when a -%% "tied" is met. -log_work(CreateWorkUnit, MessageList, - State = #pstate{ - snapshot = Snapshot = #psnapshot{messages = Messages}}) -> - Unit = CreateWorkUnit( - rabbit_misc:map_in_order( - fun (M = {publish, Message, QK = {_QName, PKey}}) -> - case ets:lookup(Messages, PKey) of - [_] -> {tied, QK}; - [] -> ets:insert(Messages, {PKey, Message}), - M - end; - (M) -> M - end, - MessageList)), - NewSnapshot = internal_integrate1(Unit, Snapshot), - log(State#pstate{snapshot = NewSnapshot}, Unit). - -log(State = #pstate{deadline = ExistingDeadline, pending_logs = Logs}, - Message) -> - State#pstate{deadline = compute_deadline(?LOG_BUNDLE_DELAY, - ExistingDeadline), - pending_logs = [Message | Logs]}. - -base_filename() -> - rabbit_mnesia:dir() ++ "/rabbit_persister.LOG". - -take_snapshot(LogHandle, OldFileName, Snapshot) -> - ok = disk_log:sync(LogHandle), - %% current_snapshot is the Head (ie. first thing logged) - ok = disk_log:reopen(LogHandle, OldFileName, current_snapshot(Snapshot)). - -take_snapshot(LogHandle, Snapshot) -> - OldFileName = lists:flatten(base_filename() ++ ".previous"), - file:delete(OldFileName), - rabbit_log:info("Rolling persister log to ~p~n", [OldFileName]), - ok = take_snapshot(LogHandle, OldFileName, Snapshot). - -take_snapshot_and_save_old(LogHandle, Snapshot) -> - {MegaSecs, Secs, MicroSecs} = erlang:now(), - Timestamp = MegaSecs * 1000000 + Secs * 1000 + MicroSecs, - OldFileName = lists:flatten(io_lib:format("~s.saved.~p", - [base_filename(), Timestamp])), - rabbit_log:info("Saving persister log in ~p~n", [OldFileName]), - ok = take_snapshot(LogHandle, OldFileName, Snapshot). - -maybe_take_snapshot(Force, State = #pstate{entry_count = EntryCount, - log_handle = LH, - snapshot = Snapshot}) -> - {ok, MaxWrapEntries} = application:get_env(persister_max_wrap_entries), - if - Force orelse EntryCount >= MaxWrapEntries -> - ok = take_snapshot(LH, Snapshot), - State#pstate{entry_count = 0}; - true -> - State - end. - -later_ms(DeltaMilliSec) -> - {MegaSec, Sec, MicroSec} = now(), - %% Note: not normalised. Unimportant for this application. - {MegaSec, Sec, MicroSec + (DeltaMilliSec * 1000)}. - -%% Result = B - A, more or less -time_diff({B1, B2, B3}, {A1, A2, A3}) -> - (B1 - A1) * 1000000 + (B2 - A2) + (B3 - A3) / 1000000.0 . - -compute_deadline(TimerDelay, infinity) -> - later_ms(TimerDelay); -compute_deadline(_TimerDelay, ExistingDeadline) -> - ExistingDeadline. - -compute_timeout(infinity) -> - {ok, HibernateAfter} = application:get_env(persister_hibernate_after), - HibernateAfter; -compute_timeout(Deadline) -> - DeltaMilliSec = time_diff(Deadline, now()) * 1000.0, - if - DeltaMilliSec =< 1 -> - 0; - true -> - round(DeltaMilliSec) - end. - -do_noreply(State = #pstate{deadline = Deadline}) -> - {noreply, State, compute_timeout(Deadline)}. - -do_reply(Reply, State = #pstate{deadline = Deadline}) -> - {reply, Reply, State, compute_timeout(Deadline)}. - -flush(State) -> flush(false, State). - -flush(ForceSnapshot, State = #pstate{pending_logs = PendingLogs, - pending_replies = Waiting, - log_handle = LogHandle}) -> - State1 = if PendingLogs /= [] -> - disk_log:alog(LogHandle, lists:reverse(PendingLogs)), - State#pstate{entry_count = State#pstate.entry_count + 1}; - true -> - State - end, - State2 = maybe_take_snapshot(ForceSnapshot, State1), - if Waiting /= [] -> - ok = disk_log:sync(LogHandle), - lists:foreach(fun (From) -> gen_server:reply(From, ok) end, - Waiting); - true -> - ok - end, - State2#pstate{deadline = infinity, - pending_logs = [], - pending_replies = []}. - -current_snapshot(_Snapshot = #psnapshot{transactions = Ts, - messages = Messages, - queues = Queues, - next_seq_id = NextSeqId}) -> - %% Avoid infinite growth of the table by removing messages not - %% bound to a queue anymore - PKeys = ets:foldl(fun ({{_QName, PKey}, _Delivered, _SeqId}, S) -> - sets:add_element(PKey, S) - end, sets:new(), Queues), - prune_table(Messages, fun (Key) -> sets:is_element(Key, PKeys) end), - InnerSnapshot = {{txns, Ts}, - {messages, ets:tab2list(Messages)}, - {queues, ets:tab2list(Queues)}, - {next_seq_id, NextSeqId}}, - ?LOGDEBUG("Inner snapshot: ~p~n", [InnerSnapshot]), - {persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, - term_to_binary(InnerSnapshot)}. - -prune_table(Tab, Pred) -> - true = ets:safe_fixtable(Tab, true), - ok = prune_table(Tab, Pred, ets:first(Tab)), - true = ets:safe_fixtable(Tab, false). - -prune_table(_Tab, _Pred, '$end_of_table') -> ok; -prune_table(Tab, Pred, Key) -> - case Pred(Key) of - true -> ok; - false -> ets:delete(Tab, Key) - end, - prune_table(Tab, Pred, ets:next(Tab, Key)). - -internal_load_snapshot(LogHandle, - DurableQueues, - Snapshot = #psnapshot{messages = Messages, - queues = Queues}) -> - {K, [Loaded_Snapshot | Items]} = disk_log:chunk(LogHandle, start), - case check_version(Loaded_Snapshot) of - {ok, StateBin} -> - {{txns, Ts}, {messages, Ms}, {queues, Qs}, - {next_seq_id, NextSeqId}} = binary_to_term(StateBin), - true = ets:insert(Messages, Ms), - true = ets:insert(Queues, Qs), - Snapshot1 = replay(Items, LogHandle, K, - Snapshot#psnapshot{ - transactions = Ts, - next_seq_id = NextSeqId}), - %% Remove all entries for queues that no longer exist. - %% Note that the 'messages' table is pruned when the next - %% snapshot is taken. - DurableQueuesSet = sets:from_list(DurableQueues), - prune_table(Snapshot1#psnapshot.queues, - fun ({QName, _PKey}) -> - sets:is_element(QName, DurableQueuesSet) - end), - %% uncompleted transactions are discarded - this is TRTTD - %% since we only get into this code on node restart, so - %% any uncompleted transactions will have been aborted. - {ok, Snapshot1#psnapshot{transactions = dict:new()}}; - {error, Reason} -> {{error, Reason}, Snapshot} - end. - -check_version({persist_snapshot, {vsn, ?PERSISTER_LOG_FORMAT_VERSION}, - StateBin}) -> - {ok, StateBin}; -check_version({persist_snapshot, {vsn, Vsn}, _StateBin}) -> - {error, {unsupported_persister_log_format, Vsn}}; -check_version(_Other) -> - {error, unrecognised_persister_log_format}. - -replay([], LogHandle, K, Snapshot) -> - case disk_log:chunk(LogHandle, K) of - {K1, Items} -> - replay(Items, LogHandle, K1, Snapshot); - {K1, Items, Badbytes} -> - rabbit_log:warning("~p bad bytes recovering persister log~n", - [Badbytes]), - replay(Items, LogHandle, K1, Snapshot); - eof -> Snapshot - end; -replay([Item | Items], LogHandle, K, Snapshot) -> - NewSnapshot = internal_integrate_messages(Item, Snapshot), - replay(Items, LogHandle, K, NewSnapshot). - -internal_integrate_messages(Items, Snapshot) -> - lists:foldl(fun (Item, Snap) -> internal_integrate1(Item, Snap) end, - Snapshot, Items). - -internal_integrate1({extend_transaction, Key, MessageList}, - Snapshot = #psnapshot {transactions = Transactions}) -> - Snapshot#psnapshot{transactions = rabbit_misc:dict_cons(Key, MessageList, - Transactions)}; -internal_integrate1({rollback_transaction, Key}, - Snapshot = #psnapshot{transactions = Transactions}) -> - Snapshot#psnapshot{transactions = dict:erase(Key, Transactions)}; -internal_integrate1({commit_transaction, Key}, - Snapshot = #psnapshot{transactions = Transactions, - messages = Messages, - queues = Queues, - next_seq_id = SeqId}) -> - case dict:find(Key, Transactions) of - {ok, MessageLists} -> - ?LOGDEBUG("persist committing txn ~p~n", [Key]), - NextSeqId = - lists:foldr( - fun (ML, SeqIdN) -> - perform_work(ML, Messages, Queues, SeqIdN) end, - SeqId, MessageLists), - Snapshot#psnapshot{transactions = dict:erase(Key, Transactions), - next_seq_id = NextSeqId}; - error -> - Snapshot - end; -internal_integrate1({dirty_work, MessageList}, - Snapshot = #psnapshot{messages = Messages, - queues = Queues, - next_seq_id = SeqId}) -> - Snapshot#psnapshot{next_seq_id = perform_work(MessageList, Messages, - Queues, SeqId)}. - -perform_work(MessageList, Messages, Queues, SeqId) -> - lists:foldl(fun (Item, NextSeqId) -> - perform_work_item(Item, Messages, Queues, NextSeqId) - end, SeqId, MessageList). - -perform_work_item({publish, Message, QK = {_QName, PKey}}, - Messages, Queues, NextSeqId) -> - true = ets:insert(Messages, {PKey, Message}), - true = ets:insert(Queues, {QK, false, NextSeqId}), - NextSeqId + 1; - -perform_work_item({tied, QK}, _Messages, Queues, NextSeqId) -> - true = ets:insert(Queues, {QK, false, NextSeqId}), - NextSeqId + 1; - -perform_work_item({deliver, QK}, _Messages, Queues, NextSeqId) -> - true = ets:update_element(Queues, QK, {2, true}), - NextSeqId; - -perform_work_item({ack, QK}, _Messages, Queues, NextSeqId) -> - true = ets:delete(Queues, QK), - NextSeqId. diff --git a/src/rabbit_queue_backing_store.erl b/src/rabbit_queue_backing_store.erl deleted file mode 100644 index a2ccc23a..00000000 --- a/src/rabbit_queue_backing_store.erl +++ /dev/null @@ -1,26 +0,0 @@ --module(rabbit_queue_backing_store). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - {init, 2}, - {delete_queue, 1}, - {fetch, 1}, - {is_empty, 1}, - {ack, 2}, - {publish_delivered, 2}, - {tx_publish, 2}, - {publish, 2}, - {requeue, 2}, - {tx_commit, 3}, - {tx_rollback, 2}, - {storage_mode, 1}, - {len, 1}, - {estimate_queue_memory_and_reset_counters, 1}, - {purge, 1}, - {set_storage_mode, 3}, - {maybe_prefetch, 1} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_ram_backed_queue.erl b/src/rabbit_ram_backed_queue.erl deleted file mode 100644 index bae2a38d..00000000 --- a/src/rabbit_ram_backed_queue.erl +++ /dev/null @@ -1,114 +0,0 @@ --module(rabbit_ram_backed_queue). - --behaviour(gen_server). - --export([new/1, destroy/1, - dequeue/1, pushback/2, enqueue/2, enqueue_list/2, - foreach/2, foldl/3, - clear/1, - is_empty/1, - len/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([test/0]). - -new(_Options) -> - {ok, Pid} = gen_server:start_link(?MODULE, [], []), - Pid. - -destroy(P) -> gen_server:call(P, destroy). - -dequeue(P) -> gen_server:call(P, dequeue). -pushback(Item, P) -> gen_server:call(P, {pushback, Item}). -enqueue(Item, P) -> gen_server:call(P, {enqueue, Item}). -enqueue_list(Items, P) -> gen_server:call(P, {enqueue_list, Items}). -foreach(F, P) -> gen_server:call(P, {foreach, F}, infinity). -foldl(F, Acc, P) -> gen_server:call(P, {foldl, F, Acc}, infinity). -clear(P) -> gen_server:call(P, clear). -is_empty(P) -> gen_server:call(P, is_empty). -len(P) -> gen_server:call(P, len). - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -init([]) -> - {ok, queue:new()}. - -handle_call(destroy, _From, Q) -> - {stop, normal, ok, Q}; -handle_call(dequeue, _From, Q) -> - case queue:out(Q) of - {{value, Item}, NextQ} -> - {reply, {ok, Item}, NextQ}; - {empty, _} -> - {reply, empty, Q} - end; -handle_call({pushback, Item}, _From, Q) -> - {reply, ok, queue:in_r(Item, Q)}; -handle_call({enqueue, Item}, _From, Q) -> - {reply, ok, queue:in(Item, Q)}; -handle_call({enqueue_list, Items}, _From, Q) -> - {reply, ok, queue:join(Q, queue:from_list(Items))}; -handle_call({foreach, F}, _From, Q) -> - ok = lists:foreach(F, queue:to_list(Q)), - {reply, ok, Q}; -handle_call({foldl, F, Acc0}, _From, Q) -> - Acc1 = lists:foldl(F, Acc0, queue:to_list(Q)), - {reply, Acc1, Q}; -handle_call(clear, _From, _Q) -> - {reply, ok, queue:new()}; -handle_call(is_empty, _From, Q) -> - {reply, queue:is_empty(Q), Q}; -handle_call(len, _From, Q) -> - {reply, queue:len(Q), Q}; -handle_call(_Request, _From, Q) -> - exit({?MODULE, unexpected_call, _Request, _From, Q}). - -handle_cast(_Msg, Q) -> - exit({?MODULE, unexpected_cast, _Msg, Q}). - -handle_info(_Info, Q) -> - exit({?MODULE, unexpected_info, _Info, Q}). - -terminate(_Reason, _Q) -> - ok. - -code_change(_OldVsn, Q, _Extra) -> - {ok, Q}. - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -test_insert_upto(_Pid, Lo, Hi) - when Lo >= Hi -> - ok; -test_insert_upto(Pid, Lo, Hi) -> - ok = ?MODULE:enqueue(Lo, Pid), - test_insert_upto(Pid, Lo + 1, Hi). - -test_remove_upto(Pid, Lo, Hi) - when Lo >= Hi -> - empty = ?MODULE:dequeue(Pid), - ok; -test_remove_upto(Pid, Lo, Hi) -> - {ok, Lo} = ?MODULE:dequeue(Pid), - test_remove_upto(Pid, Lo + 1, Hi). - -test() -> - Pid = ?MODULE:new([]), - Max = 11, - Mid = trunc(Max / 2), - ok = test_insert_upto(Pid, 0, Max), - AllItems = lists:seq(0, Max - 1), - AllItems = lists:reverse(?MODULE:foldl(fun (X, Acc) -> [X | Acc] end, [], Pid)), - ok = test_remove_upto(Pid, 0, Max), - - ok = test_insert_upto(Pid, 0, Mid), - {ok, 0} = ?MODULE:dequeue(Pid), - ok = ?MODULE:pushback(abc, Pid), - ok = test_insert_upto(Pid, Mid, Max), - {ok, abc} = ?MODULE:dequeue(Pid), - ok = test_remove_upto(Pid, 1, Max), - - %% ok = ?MODULE:destroy(Pid), - ok. diff --git a/src/rabbit_ram_backed_queue_nogen.erl b/src/rabbit_ram_backed_queue_nogen.erl deleted file mode 100644 index 84adf0ec..00000000 --- a/src/rabbit_ram_backed_queue_nogen.erl +++ /dev/null @@ -1,69 +0,0 @@ --module(rabbit_ram_backed_queue_nogen). - --export([new/1, destroy/1, - dequeue/1, pushback/2, enqueue/2, enqueue_list/2, - foreach/2, foldl/3, - clear/1, - is_empty/1, - len/1]). - -new(_Options) -> - spawn_link(fun () -> mainloop(queue:new()) end). - -destroy(P) -> rpc(P, destroy). - -dequeue(P) -> rpc(P, dequeue). -pushback(Item, P) -> rpc(P, {pushback, Item}). -enqueue(Item, P) -> rpc(P, {enqueue, Item}). -enqueue_list(Items, P) -> rpc(P, {enqueue_list, Items}). -foreach(F, P) -> rpc(P, {foreach, F}). -foldl(F, Acc, P) -> rpc(P, {foldl, F, Acc}). -clear(P) -> rpc(P, clear). -is_empty(P) -> rpc(P, is_empty). -len(P) -> rpc(P, len). - -rpc(P, Request) -> - K = make_ref(), - P ! {self(), K, Request}, - receive {K, Reply} -> Reply end. - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -mainloop(Q) -> - receive - {Requestor, Key, destroy} -> - Requestor ! {Key, ok}, - ok; - {Requestor, Key, Request} -> - {Reply, NewQ} = handle(Request, Q), - Requestor ! {Key, Reply}, - mainloop(NewQ) - end. - -handle(dequeue, Q) -> - case queue:out(Q) of - {{value, Item}, NextQ} -> - {{ok, Item}, NextQ}; - {empty, _} -> - {empty, Q} - end; -handle({pushback, Item}, Q) -> - {ok, queue:in_r(Item, Q)}; -handle({enqueue, Item}, Q) -> - {ok, queue:in(Item, Q)}; -handle({enqueue_list, Items}, Q) -> - {ok, queue:join(Q, queue:from_list(Items))}; -handle({foreach, F}, Q) -> - ok = lists:foreach(F, queue:to_list(Q)), - {ok, Q}; -handle({foldl, F, Acc0}, Q) -> - Acc1 = lists:foldl(F, Acc0, queue:to_list(Q)), - {Acc1, Q}; -handle(clear, _Q) -> - {ok, queue:new()}; -handle(is_empty, Q) -> - {queue:is_empty(Q), Q}; -handle(len, Q) -> - {queue:len(Q), Q}; -handle(_Request, Q) -> - exit({?MODULE, unexpected_call, _Request, Q}). diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl deleted file mode 100644 index 8e7cd39f..00000000 --- a/src/rabbit_reader.erl +++ /dev/null @@ -1,799 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_reader). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([start_link/0, info_keys/0, info/1, info/2, shutdown/2]). - --export([system_continue/3, system_terminate/4, system_code_change/4]). - --export([init/1, mainloop/3]). - --export([server_properties/0]). - --export([analyze_frame/2]). - --import(gen_tcp). --import(fprof). --import(inet). --import(prim_inet). - --define(HANDSHAKE_TIMEOUT, 10). --define(NORMAL_TIMEOUT, 3). --define(CLOSING_TIMEOUT, 1). --define(CHANNEL_TERMINATION_TIMEOUT, 3). --define(SILENT_CLOSE_DELAY, 3). -%% set to zero once QPid fix their negotiation --define(FRAME_MAX, 131072). --define(CHANNEL_MAX, 0). - -%--------------------------------------------------------------------------- - --record(v1, {sock, connection, callback, recv_ref, connection_state, - queue_collector}). - --define(INFO_KEYS, - [pid, address, port, peer_address, peer_port, - recv_oct, recv_cnt, send_oct, send_cnt, send_pend, - state, channels, user, vhost, timeout, frame_max, client_properties]). - -%% connection lifecycle -%% -%% all state transitions and terminations are marked with *...* -%% -%% The lifecycle begins with: start handshake_timeout timer, *pre-init* -%% -%% all states, unless specified otherwise: -%% socket error -> *exit* -%% socket close -> *throw* -%% writer send failure -> *throw* -%% forced termination -> *exit* -%% handshake_timeout -> *throw* -%% pre-init: -%% receive protocol header -> send connection.start, *starting* -%% starting: -%% receive connection.start_ok -> send connection.tune, *tuning* -%% tuning: -%% receive connection.tune_ok -> start heartbeats, *opening* -%% opening: -%% receive connection.open -> send connection.open_ok, *running* -%% running: -%% receive connection.close -> -%% tell channels to terminate gracefully -%% if no channels then send connection.close_ok, start -%% terminate_connection timer, *closed* -%% else *closing* -%% forced termination -%% -> wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *exit* -%% channel exit with hard error -%% -> log error, wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *closed* -%% channel exit with soft error -%% -> log error, mark channel as closing, *running* -%% handshake_timeout -> ignore, *running* -%% heartbeat timeout -> *throw* -%% closing: -%% socket close -> *terminate* -%% receive frame -> ignore, *closing* -%% handshake_timeout -> ignore, *closing* -%% heartbeat timeout -> *throw* -%% channel exit with hard error -%% -> log error, wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *closed* -%% channel exit with soft error -%% -> log error, mark channel as closing -%% if last channel to exit then send connection.close_ok, -%% start terminate_connection timer, *closed* -%% else *closing* -%% channel exits normally -%% -> if last channel to exit then send connection.close_ok, -%% start terminate_connection timer, *closed* -%% closed: -%% socket close -> *terminate* -%% receive connection.close_ok -> self() ! terminate_connection, -%% *closed* -%% receive frame -> ignore, *closed* -%% terminate_connection timeout -> *terminate* -%% handshake_timeout -> ignore, *closed* -%% heartbeat timeout -> *throw* -%% channel exit -> log error, *closed* -%% -%% -%% TODO: refactor the code so that the above is obvious - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(info_keys/0 :: () -> [info_key()]). --spec(info/1 :: (pid()) -> [info()]). --spec(info/2 :: (pid(), [info_key()]) -> [info()]). --spec(shutdown/2 :: (pid(), string()) -> 'ok'). --spec(server_properties/0 :: () -> amqp_table()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link() -> - {ok, proc_lib:spawn_link(?MODULE, init, [self()])}. - -shutdown(Pid, Explanation) -> - gen_server:call(Pid, {shutdown, Explanation}, infinity). - -init(Parent) -> - Deb = sys:debug_options([]), - receive - {go, Sock, SockTransform} -> - start_connection(Parent, Deb, Sock, SockTransform) - end. - -system_continue(Parent, Deb, State) -> - ?MODULE:mainloop(Parent, Deb, State). - -system_terminate(Reason, _Parent, _Deb, _State) -> - exit(Reason). - -system_code_change(Misc, _Module, _OldVsn, _Extra) -> - {ok, Misc}. - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -setup_profiling() -> - Value = rabbit_misc:get_config(profiling_enabled, false), - case Value of - once -> - rabbit_log:info("Enabling profiling for this connection, " - "and disabling for subsequent.~n"), - rabbit_misc:set_config(profiling_enabled, false), - fprof:trace(start); - true -> - rabbit_log:info("Enabling profiling for this connection.~n"), - fprof:trace(start); - false -> - ok - end, - Value. - -teardown_profiling(Value) -> - case Value of - false -> - ok; - _ -> - rabbit_log:info("Completing profiling for this connection.~n"), - fprof:trace(stop), - fprof:profile(), - fprof:analyse([{dest, []}, {cols, 100}]) - end. - -server_properties() -> - {ok, Product} = application:get_key(rabbit, id), - {ok, Version} = application:get_key(rabbit, vsn), - [{list_to_binary(K), longstr, list_to_binary(V)} || - {K, V} <- [{"product", Product}, - {"version", Version}, - {"platform", "Erlang/OTP"}, - {"copyright", ?COPYRIGHT_MESSAGE}, - {"information", ?INFORMATION_MESSAGE}]]. - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -socket_op(Sock, Fun) -> - case Fun(Sock) of - {ok, Res} -> Res; - {error, Reason} -> rabbit_log:error("error on TCP connection ~p:~p~n", - [self(), Reason]), - rabbit_log:info("closing TCP connection ~p~n", - [self()]), - exit(normal) - end. - -start_connection(Parent, Deb, Sock, SockTransform) -> - process_flag(trap_exit, true), - {PeerAddress, PeerPort} = socket_op(Sock, fun rabbit_net:peername/1), - PeerAddressS = inet_parse:ntoa(PeerAddress), - rabbit_log:info("starting TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - ClientSock = socket_op(Sock, SockTransform), - erlang:send_after(?HANDSHAKE_TIMEOUT * 1000, self(), - handshake_timeout), - ProfilingValue = setup_profiling(), - {ok, Collector} = rabbit_reader_queue_collector:start_link(), - try - mainloop(Parent, Deb, switch_callback( - #v1{sock = ClientSock, - connection = #connection{ - user = none, - timeout_sec = ?HANDSHAKE_TIMEOUT, - frame_max = ?FRAME_MIN_SIZE, - vhost = none, - client_properties = none}, - callback = uninitialized_callback, - recv_ref = none, - connection_state = pre_init, - queue_collector = Collector}, - handshake, 8)) - catch - Ex -> (if Ex == connection_closed_abruptly -> - fun rabbit_log:warning/2; - true -> - fun rabbit_log:error/2 - end)("exception on TCP connection ~p from ~s:~p~n~p~n", - [self(), PeerAddressS, PeerPort, Ex]) - after - rabbit_log:info("closing TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - %% We don't close the socket explicitly. The reader is the - %% controlling process and hence its termination will close - %% the socket. Furthermore, gen_tcp:close/1 waits for pending - %% output to be sent, which results in unnecessary delays. - %% - %% gen_tcp:close(ClientSock), - teardown_profiling(ProfilingValue), - rabbit_reader_queue_collector:shutdown(Collector), - rabbit_misc:unlink_and_capture_exit(Collector) - end, - done. - -mainloop(Parent, Deb, State = #v1{sock= Sock, recv_ref = Ref}) -> - %%?LOGDEBUG("Reader mainloop: ~p bytes available, need ~p~n", [HaveBytes, WaitUntilNBytes]), - receive - {inet_async, Sock, Ref, {ok, Data}} -> - {State1, Callback1, Length1} = - handle_input(State#v1.callback, Data, - State#v1{recv_ref = none}), - mainloop(Parent, Deb, - switch_callback(State1, Callback1, Length1)); - {inet_async, Sock, Ref, {error, closed}} -> - if State#v1.connection_state =:= closed -> - State; - true -> - throw(connection_closed_abruptly) - end; - {inet_async, Sock, Ref, {error, Reason}} -> - throw({inet_error, Reason}); - {'EXIT', Parent, Reason} -> - terminate(io_lib:format("broker forced connection closure " - "with reason '~w'", [Reason]), State), - %% this is what we are expected to do according to - %% http://www.erlang.org/doc/man/sys.html - %% - %% If we wanted to be *really* nice we should wait for a - %% while for clients to close the socket at their end, - %% just as we do in the ordinary error case. However, - %% since this termination is initiated by our parent it is - %% probably more important to exit quickly. - exit(Reason); - {channel_exit, _Chan, E = {writer, send_failed, _Error}} -> - throw(E); - {channel_exit, Channel, Reason} -> - mainloop(Parent, Deb, handle_channel_exit(Channel, Reason, State)); - {'EXIT', Pid, Reason} -> - mainloop(Parent, Deb, handle_dependent_exit(Pid, Reason, State)); - terminate_connection -> - State; - handshake_timeout -> - if State#v1.connection_state =:= running orelse - State#v1.connection_state =:= closing orelse - State#v1.connection_state =:= closed -> - mainloop(Parent, Deb, State); - true -> - throw({handshake_timeout, State#v1.callback}) - end; - timeout -> - throw({timeout, State#v1.connection_state}); - {'$gen_call', From, {shutdown, Explanation}} -> - {ForceTermination, NewState} = terminate(Explanation, State), - gen_server:reply(From, ok), - case ForceTermination of - force -> ok; - normal -> mainloop(Parent, Deb, NewState) - end; - {'$gen_call', From, info} -> - gen_server:reply(From, infos(?INFO_KEYS, State)), - mainloop(Parent, Deb, State); - {'$gen_call', From, {info, Items}} -> - gen_server:reply(From, try {ok, infos(Items, State)} - catch Error -> {error, Error} - end), - mainloop(Parent, Deb, State); - {system, From, Request} -> - sys:handle_system_msg(Request, From, - Parent, ?MODULE, Deb, State); - Other -> - %% internal error -> something worth dying for - exit({unexpected_message, Other}) - end. - -switch_callback(OldState, NewCallback, Length) -> - Ref = inet_op(fun () -> rabbit_net:async_recv( - OldState#v1.sock, Length, infinity) end), - OldState#v1{callback = NewCallback, - recv_ref = Ref}. - -terminate(Explanation, State = #v1{connection_state = running}) -> - {normal, send_exception(State, 0, - rabbit_misc:amqp_error( - connection_forced, Explanation, [], none))}; -terminate(_Explanation, State) -> - {force, State}. - -close_connection(State = #v1{connection = #connection{ - timeout_sec = TimeoutSec}}) -> - %% We terminate the connection after the specified interval, but - %% no later than ?CLOSING_TIMEOUT seconds. - TimeoutMillisec = - 1000 * if TimeoutSec > 0 andalso - TimeoutSec < ?CLOSING_TIMEOUT -> TimeoutSec; - true -> ?CLOSING_TIMEOUT - end, - erlang:send_after(TimeoutMillisec, self(), terminate_connection), - State#v1{connection_state = closed}. - -close_channel(Channel, State) -> - put({channel, Channel}, closing), - State. - -handle_channel_exit(Channel, Reason, State) -> - handle_exception(State, Channel, Reason). - -handle_dependent_exit(Pid, normal, State) -> - erase({chpid, Pid}), - maybe_close(State); -handle_dependent_exit(Pid, Reason, State) -> - case channel_cleanup(Pid) of - undefined -> exit({abnormal_dependent_exit, Pid, Reason}); - Channel -> maybe_close(handle_exception(State, Channel, Reason)) - end. - -channel_cleanup(Pid) -> - case get({chpid, Pid}) of - undefined -> undefined; - {channel, Channel} -> erase({channel, Channel}), - erase({chpid, Pid}), - Channel - end. - -all_channels() -> [Pid || {{chpid, Pid},_} <- get()]. - -terminate_channels() -> - NChannels = length([exit(Pid, normal) || Pid <- all_channels()]), - if NChannels > 0 -> - Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, - TimerRef = erlang:send_after(Timeout, self(), cancel_wait), - wait_for_channel_termination(NChannels, TimerRef); - true -> ok - end. - -wait_for_channel_termination(0, TimerRef) -> - case erlang:cancel_timer(TimerRef) of - false -> receive - cancel_wait -> ok - end; - _ -> ok - end; - -wait_for_channel_termination(N, TimerRef) -> - receive - {'EXIT', Pid, Reason} -> - case channel_cleanup(Pid) of - undefined -> - exit({abnormal_dependent_exit, Pid, Reason}); - Channel -> - case Reason of - normal -> ok; - _ -> - rabbit_log:error( - "connection ~p, channel ~p - " - "error while terminating:~n~p~n", - [self(), Channel, Reason]) - end, - wait_for_channel_termination(N-1, TimerRef) - end; - cancel_wait -> - exit(channel_termination_timeout) - end. - -maybe_close(State = #v1{connection_state = closing, - queue_collector = Collector}) -> - case all_channels() of - [] -> - %% Spec says "Exclusive queues may only be accessed by the current - %% connection, and are deleted when that connection closes." - %% This does not strictly imply synchrony, but in practice it seems - %% to be what people assume. - rabbit_reader_queue_collector:delete_all(Collector), - ok = send_on_channel0(State#v1.sock, #'connection.close_ok'{}), - close_connection(State); - _ -> State - end; -maybe_close(State) -> - State. - -handle_frame(Type, 0, Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - case analyze_frame(Type, Payload) of - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - _Other -> State - end; -handle_frame(_Type, _Channel, _Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_frame(Type, 0, Payload, State) -> - case analyze_frame(Type, Payload) of - error -> throw({unknown_frame, 0, Type, Payload}); - heartbeat -> State; - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - Other -> throw({unexpected_frame_on_channel0, Other}) - end; -handle_frame(Type, Channel, Payload, State) -> - case analyze_frame(Type, Payload) of - error -> throw({unknown_frame, Channel, Type, Payload}); - heartbeat -> throw({unexpected_heartbeat_frame, Channel}); - AnalyzedFrame -> - %%?LOGDEBUG("Ch ~p Frame ~p~n", [Channel, AnalyzedFrame]), - case get({channel, Channel}) of - {chpid, ChPid} -> - case AnalyzedFrame of - {method, 'channel.close', _} -> - erase({channel, Channel}); - _ -> ok - end, - ok = rabbit_framing_channel:process(ChPid, AnalyzedFrame), - State; - closing -> - %% According to the spec, after sending a - %% channel.close we must ignore all frames except - %% channel.close_ok. - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - erase({channel, Channel}); - _ -> ok - end, - State; - undefined -> - case State#v1.connection_state of - running -> ok = send_to_new_channel( - Channel, AnalyzedFrame, State), - State; - Other -> throw({channel_frame_while_starting, - Channel, Other, AnalyzedFrame}) - end - end - end. - -analyze_frame(?FRAME_METHOD, <>) -> - {method, rabbit_framing:lookup_method_name({ClassId, MethodId}), MethodFields}; -analyze_frame(?FRAME_HEADER, <>) -> - {content_header, ClassId, Weight, BodySize, Properties}; -analyze_frame(?FRAME_BODY, Body) -> - {content_body, Body}; -analyze_frame(?FRAME_HEARTBEAT, <<>>) -> - heartbeat; -analyze_frame(_Type, _Body) -> - error. - -handle_input(frame_header, <>, State) -> - %%?LOGDEBUG("Got frame header: ~p/~p/~p~n", [Type, Channel, PayloadSize]), - {State, {frame_payload, Type, Channel, PayloadSize}, PayloadSize + 1}; - -handle_input({frame_payload, Type, Channel, PayloadSize}, PayloadAndMarker, State) -> - case PayloadAndMarker of - <> -> - %%?LOGDEBUG("Frame completed: ~p/~p/~p~n", [Type, Channel, Payload]), - NewState = handle_frame(Type, Channel, Payload, State), - {NewState, frame_header, 7}; - _ -> - throw({bad_payload, PayloadAndMarker}) - end; - -%% The two rules pertaining to version negotiation: -%% -%% * If the server cannot support the protocol specified in the -%% protocol header, it MUST respond with a valid protocol header and -%% then close the socket connection. -%% -%% * The server MUST provide a protocol version that is lower than or -%% equal to that requested by the client in the protocol header. -%% -%% We support 0-9-1 and 0-9, so by the first rule, we must close the -%% connection if we're sent anything else. Then, we must send that -%% version in the Connection.start method. -handle_input(handshake, <<"AMQP",0,0,9,1>>, State) -> - %% 0-9-1 style protocol header. - protocol_negotiate(0, 9, 1, State); -handle_input(handshake, <<"AMQP",1,1,0,9>>, State) -> - %% 0-8 and 0-9 style protocol header; we support only 0-9 - protocol_negotiate(0, 9, 0, State); -handle_input(handshake, Other, #v1{sock = Sock}) -> - ok = inet_op(fun () -> rabbit_net:send( - Sock, <<"AMQP",0,0,9,1>>) end), - throw({bad_header, Other}); - -handle_input(Callback, Data, _State) -> - throw({bad_input, Callback, Data}). - -%% Offer a protocol version to the client. Connection.start only -%% includes a major and minor version number, Luckily 0-9 and 0-9-1 -%% are similar enough that clients will be happy with either. -protocol_negotiate(ProtocolMajor, ProtocolMinor, _ProtocolRevision, - State = #v1{sock = Sock, connection = Connection}) -> - ok = send_on_channel0( - Sock, - #'connection.start'{ - version_major = ProtocolMajor, - version_minor = ProtocolMinor, - server_properties = server_properties(), - mechanisms = <<"PLAIN AMQPLAIN">>, - locales = <<"en_US">> }), - {State#v1{connection = Connection#connection{ - timeout_sec = ?NORMAL_TIMEOUT}, - connection_state = starting}, - frame_header, 7}. - -%%-------------------------------------------------------------------------- - -handle_method0(MethodName, FieldsBin, State) -> - try - handle_method0(rabbit_framing:decode_method_fields( - MethodName, FieldsBin), - State) - catch exit:Reason -> - CompleteReason = case Reason of - #amqp_error{method = none} -> - Reason#amqp_error{method = MethodName}; - OtherReason -> OtherReason - end, - case State#v1.connection_state of - running -> send_exception(State, 0, CompleteReason); - %% We don't trust the client at this point - force - %% them to wait for a bit so they can't DOS us with - %% repeated failed logins etc. - Other -> timer:sleep(?SILENT_CLOSE_DELAY * 1000), - throw({channel0_error, Other, CompleteReason}) - end - end. - -handle_method0(#'connection.start_ok'{mechanism = Mechanism, - response = Response, - client_properties = ClientProperties}, - State = #v1{connection_state = starting, - connection = Connection, - sock = Sock}) -> - User = rabbit_access_control:check_login(Mechanism, Response), - ok = send_on_channel0( - Sock, - #'connection.tune'{channel_max = ?CHANNEL_MAX, - frame_max = ?FRAME_MAX, - heartbeat = 0}), - State#v1{connection_state = tuning, - connection = Connection#connection{ - user = User, - client_properties = ClientProperties}}; -handle_method0(#'connection.tune_ok'{channel_max = _ChannelMax, - frame_max = FrameMax, - heartbeat = ClientHeartbeat}, - State = #v1{connection_state = tuning, - connection = Connection, - sock = Sock}) -> - if (FrameMax =< ?FRAME_MIN_SIZE) or - (?FRAME_MAX /= 0) and (FrameMax > ?FRAME_MAX) -> - rabbit_misc:protocol_error( - mistuned, "peer sent tune_ok with invalid frame_max", []); - %% If we have a channel_max limit that the client wishes to - %% exceed, die as per spec. Not currently a problem, so we ignore - %% the client's channel_max parameter. -%% (?CHANNEL_MAX /= 0) and (ChannelMax > ?CHANNEL_MAX) -> -%% rabbit_misc:protocol_error( -%% mistuned, "peer sent tune_ok with invalid channel_max"); - true -> - rabbit_heartbeat:start_heartbeat(Sock, ClientHeartbeat), - State#v1{connection_state = opening, - connection = Connection#connection{ - timeout_sec = ClientHeartbeat, - frame_max = FrameMax}} - end; -handle_method0(#'connection.open'{virtual_host = VHostPath}, - State = #v1{connection_state = opening, - connection = Connection = #connection{ - user = User}, - sock = Sock}) -> - ok = rabbit_access_control:check_vhost_access(User, VHostPath), - NewConnection = Connection#connection{vhost = VHostPath}, - ok = send_on_channel0( - Sock, - #'connection.open_ok'{deprecated_known_hosts = <<>>}), - State#v1{connection_state = running, - connection = NewConnection}; -handle_method0(#'connection.close'{}, - State = #v1{connection_state = running}) -> - lists:foreach(fun rabbit_framing_channel:shutdown/1, all_channels()), - maybe_close(State#v1{connection_state = closing}); -handle_method0(#'connection.close_ok'{}, - State = #v1{connection_state = closed}) -> - self() ! terminate_connection, - State; -handle_method0(_Method, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_method0(_Method, #v1{connection_state = S}) -> - rabbit_misc:protocol_error( - channel_error, "unexpected method in connection state ~w", [S]). - -send_on_channel0(Sock, Method) -> - ok = rabbit_writer:internal_send_command(Sock, 0, Method). - -%%-------------------------------------------------------------------------- - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, #v1{}) -> - self(); -i(address, #v1{sock = Sock}) -> - {ok, {A, _}} = rabbit_net:sockname(Sock), - A; -i(port, #v1{sock = Sock}) -> - {ok, {_, P}} = rabbit_net:sockname(Sock), - P; -i(peer_address, #v1{sock = Sock}) -> - {ok, {A, _}} = rabbit_net:peername(Sock), - A; -i(peer_port, #v1{sock = Sock}) -> - {ok, {_, P}} = rabbit_net:peername(Sock), - P; -i(SockStat, #v1{sock = Sock}) when SockStat =:= recv_oct; - SockStat =:= recv_cnt; - SockStat =:= send_oct; - SockStat =:= send_cnt; - SockStat =:= send_pend -> - case rabbit_net:getstat(Sock, [SockStat]) of - {ok, [{SockStat, StatVal}]} -> StatVal; - {error, einval} -> undefined; - {error, Error} -> throw({cannot_get_socket_stats, Error}) - end; -i(state, #v1{connection_state = S}) -> - S; -i(channels, #v1{}) -> - length(all_channels()); -i(user, #v1{connection = #connection{user = #user{username = Username}}}) -> - Username; -i(user, #v1{connection = #connection{user = none}}) -> - ''; -i(vhost, #v1{connection = #connection{vhost = VHost}}) -> - VHost; -i(timeout, #v1{connection = #connection{timeout_sec = Timeout}}) -> - Timeout; -i(frame_max, #v1{connection = #connection{frame_max = FrameMax}}) -> - FrameMax; -i(client_properties, #v1{connection = #connection{ - client_properties = ClientProperties}}) -> - ClientProperties; -i(Item, #v1{}) -> - throw({bad_argument, Item}). - -%%-------------------------------------------------------------------------- - -send_to_new_channel(Channel, AnalyzedFrame, - State = #v1{queue_collector = Collector}) -> - #v1{sock = Sock, connection = #connection{ - frame_max = FrameMax, - user = #user{username = Username}, - vhost = VHost}} = State, - WriterPid = rabbit_writer:start(Sock, Channel, FrameMax), - ChPid = rabbit_framing_channel:start_link( - fun rabbit_channel:start_link/6, - [Channel, self(), WriterPid, Username, VHost, Collector]), - put({channel, Channel}, {chpid, ChPid}), - put({chpid, ChPid}, {channel, Channel}), - ok = rabbit_framing_channel:process(ChPid, AnalyzedFrame). - -log_channel_error(ConnectionState, Channel, Reason) -> - rabbit_log:error("connection ~p (~p), channel ~p - error:~n~p~n", - [self(), ConnectionState, Channel, Reason]). - -handle_exception(State = #v1{connection_state = closed}, Channel, Reason) -> - log_channel_error(closed, Channel, Reason), - State; -handle_exception(State = #v1{connection_state = CS}, Channel, Reason) -> - log_channel_error(CS, Channel, Reason), - send_exception(State, Channel, Reason). - -send_exception(State, Channel, Reason) -> - {ShouldClose, CloseChannel, CloseMethod} = map_exception(Channel, Reason), - NewState = case ShouldClose of - true -> terminate_channels(), - close_connection(State); - false -> close_channel(Channel, State) - end, - ok = rabbit_writer:internal_send_command( - NewState#v1.sock, CloseChannel, CloseMethod), - NewState. - -map_exception(Channel, Reason) -> - {SuggestedClose, ReplyCode, ReplyText, FailedMethod} = - lookup_amqp_exception(Reason), - ShouldClose = SuggestedClose or (Channel == 0), - {ClassId, MethodId} = case FailedMethod of - {_, _} -> FailedMethod; - none -> {0, 0}; - _ -> rabbit_framing:method_id(FailedMethod) - end, - {CloseChannel, CloseMethod} = - case ShouldClose of - true -> {0, #'connection.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}}; - false -> {Channel, #'channel.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}} - end, - {ShouldClose, CloseChannel, CloseMethod}. - -%% FIXME: this clause can go when we move to AMQP spec >=8.1 -lookup_amqp_exception(#amqp_error{name = precondition_failed, - explanation = Expl, - method = Method}) -> - ExplBin = amqp_exception_explanation(<<"PRECONDITION_FAILED">>, Expl), - {false, 406, ExplBin, Method}; -lookup_amqp_exception(#amqp_error{name = Name, - explanation = Expl, - method = Method}) -> - {ShouldClose, Code, Text} = rabbit_framing:lookup_amqp_exception(Name), - ExplBin = amqp_exception_explanation(Text, Expl), - {ShouldClose, Code, ExplBin, Method}; -lookup_amqp_exception(Other) -> - rabbit_log:warning("Non-AMQP exit reason '~p'~n", [Other]), - {ShouldClose, Code, Text} = - rabbit_framing:lookup_amqp_exception(internal_error), - {ShouldClose, Code, Text, none}. - -amqp_exception_explanation(Text, Expl) -> - ExplBin = list_to_binary(Expl), - CompleteTextBin = <>, - if size(CompleteTextBin) > 255 -> <>; - true -> CompleteTextBin - end. diff --git a/src/rabbit_reader_queue_collector.erl b/src/rabbit_reader_queue_collector.erl deleted file mode 100644 index 082453c5..00000000 --- a/src/rabbit_reader_queue_collector.erl +++ /dev/null @@ -1,115 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_reader_queue_collector). - --behaviour(gen_server). - --export([start_link/0, register_exclusive_queue/2, delete_all/1, shutdown/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {exclusive_queues}). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()}). --spec(register_exclusive_queue/2 :: (pid(), pid()) -> {'ok'}). --spec(delete_all/1 :: (pid()) -> {'ok'}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link(?MODULE, [], []). - -register_exclusive_queue(CollectorPid, Q) -> - gen_server:call(CollectorPid, {register_exclusive_queue, Q}, infinity). - -delete_all(CollectorPid) -> - gen_server:call(CollectorPid, delete_all, infinity). - -shutdown(CollectorPid) -> - gen_server:call(CollectorPid, shutdown, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state{exclusive_queues = dict:new()}}. - -%%-------------------------------------------------------------------------- - -handle_call({register_exclusive_queue, Q}, _From, - State = #state{exclusive_queues = Queues}) -> - MonitorRef = erlang:monitor(process, Q#amqqueue.pid), - {reply, ok, - State#state{exclusive_queues = dict:store(MonitorRef, Q, Queues)}}; - -handle_call(delete_all, _From, - State = #state{exclusive_queues = ExclusiveQueues}) -> - [rabbit_misc:with_exit_handler( -<<<<<<< local - fun() -> ok end, - fun() -> - erlang:demonitor(MonitorRef), - rabbit_amqqueue:delete(Q, false, false) - end) - || {MonitorRef, [Q]} <- dict:to_list(ExclusiveQueues)], - fun () -> ok end, - fun () -> - erlang:demonitor(MonitorRef), - rabbit_amqqueue:delete(Q, false, false) - end) - || {MonitorRef, Q} <- dict:to_list(ExclusiveQueues)], - {reply, ok, State}; - -handle_call(shutdown, _From, State) -> - {stop, normal, ok, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({'DOWN', MonitorRef, process, _DownPid, _Reason}, - State = #state{exclusive_queues = ExclusiveQueues}) -> - {noreply, State#state{exclusive_queues = - dict:erase(MonitorRef, ExclusiveQueues)}}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_restartable_sup.erl b/src/rabbit_restartable_sup.erl deleted file mode 100644 index 06d59249..00000000 --- a/src/rabbit_restartable_sup.erl +++ /dev/null @@ -1,47 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_restartable_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -start_link(Name, {_M, _F, _A} = Fun) -> - supervisor:start_link({local, Name}, ?MODULE, [Fun]). - -init([{Mod, _F, _A} = Fun]) -> - {ok, {{one_for_one, 10, 10}, - [{Mod, Fun, transient, ?MAX_WAIT, worker, [Mod]}]}}. diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl deleted file mode 100644 index d812d58d..00000000 --- a/src/rabbit_router.erl +++ /dev/null @@ -1,109 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_router). --include_lib("stdlib/include/qlc.hrl"). --include("rabbit.hrl"). - --export([deliver/2, - match_bindings/2, - match_routing_key/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(deliver/2 :: ([pid()], delivery()) -> {routing_result(), [pid()]}). - --endif. - -%%---------------------------------------------------------------------------- - -deliver(QPids, Delivery = #delivery{mandatory = false, - immediate = false}) -> - %% optimisation: when Mandatory = false and Immediate = false, - %% rabbit_amqqueue:deliver will deliver the message to the queue - %% process asynchronously, and return true, which means all the - %% QPids will always be returned. It is therefore safe to use a - %% fire-and-forget cast here and return the QPids - the semantics - %% is preserved. This scales much better than the non-immediate - %% case below. - delegate:invoke_no_result( - QPids, fun (Pid) -> rabbit_amqqueue:deliver(Pid, Delivery) end), - {routed, QPids}; - -deliver(QPids, Delivery) -> - {Success, _} = - delegate:invoke(QPids, - fun (Pid) -> - rabbit_amqqueue:deliver(Pid, Delivery) - end), - {Routed, Handled} = - lists:foldl(fun fold_deliveries/2, {false, []}, Success), - check_delivery(Delivery#delivery.mandatory, Delivery#delivery.immediate, - {Routed, Handled}). - -%% TODO: Maybe this should be handled by a cursor instead. -%% TODO: This causes a full scan for each entry with the same exchange -match_bindings(Name, Match) -> - Query = qlc:q([QName || #route{binding = Binding = #binding{ - exchange_name = ExchangeName, - queue_name = QName}} <- - mnesia:table(rabbit_route), - ExchangeName == Name, - Match(Binding)]), - lookup_qpids(mnesia:async_dirty(fun qlc:e/1, [Query])). - -match_routing_key(Name, RoutingKey) -> - MatchHead = #route{binding = #binding{exchange_name = Name, - queue_name = '$1', - key = RoutingKey, - _ = '_'}}, - lookup_qpids(mnesia:dirty_select(rabbit_route, [{MatchHead, [], ['$1']}])). - -lookup_qpids(Queues) -> - lists:foldl( - fun (Key, Acc) -> - case mnesia:dirty_read({rabbit_queue, Key}) of - [#amqqueue{pid = QPid}] -> [QPid | Acc]; - [] -> Acc - end - end, [], lists:usort(Queues)). - -%%-------------------------------------------------------------------- - -fold_deliveries({Pid, true},{_, Handled}) -> {true, [Pid|Handled]}; -fold_deliveries({_, false},{_, Handled}) -> {true, Handled}. - -%% check_delivery(Mandatory, Immediate, {WasRouted, QPids}) -check_delivery(true, _ , {false, []}) -> {no_route, []}; -check_delivery(_ , true, {_ , []}) -> {no_consumers, []}; -check_delivery(_ , _ , {_ , Qs}) -> {routed, Qs}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl deleted file mode 100644 index ca32c6ab..00000000 --- a/src/rabbit_tests.erl +++ /dev/null @@ -1,1187 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_tests). - --compile([export_all]). - --export([all_tests/0, test_parsing/0]). - -%% Exported so the hook mechanism can call back --export([handle_hook/3, bad_handle_hook/3, extra_arg_hook/5]). - --import(lists). - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). --include_lib("kernel/include/file.hrl"). - -test_content_prop_roundtrip(Datum, Binary) -> - Types = [element(1, E) || E <- Datum], - Values = [element(2, E) || E <- Datum], - Values = rabbit_binary_parser:parse_properties(Types, Binary), %% assertion - Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion - -all_tests() -> - passed = test_priority_queue(), - passed = test_pg_local(), - passed = test_unfold(), - passed = test_parsing(), - passed = test_content_framing(), - passed = test_topic_matching(), - passed = test_log_management(), - passed = test_app_management(), - passed = test_log_management_during_startup(), - passed = test_memory_pressure(), - passed = test_cluster_management(), - passed = test_user_management(), - passed = test_server_status(), - passed = maybe_run_cluster_dependent_tests(), - passed. - - -maybe_run_cluster_dependent_tests() -> - SecondaryNode = rabbit_misc:makenode("hare"), - - case net_adm:ping(SecondaryNode) of - pong -> passed = run_cluster_dependent_tests(SecondaryNode); - pang -> io:format("Skipping cluster dependent tests with node ~p~n", - [SecondaryNode]) - end, - passed. - -run_cluster_dependent_tests(SecondaryNode) -> - SecondaryNodeS = atom_to_list(SecondaryNode), - - ok = control_action(stop_app, []), - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - - io:format("Running cluster dependent tests with node ~p~n", [SecondaryNode]), - passed = test_delegates_async(SecondaryNode), - passed = test_delegates_sync(SecondaryNode), - - passed. - -test_priority_queue() -> - - false = priority_queue:is_queue(not_a_queue), - - %% empty Q - Q = priority_queue:new(), - {true, true, 0, [], []} = test_priority_queue(Q), - - %% 1-4 element no-priority Q - true = lists:all(fun (X) -> X =:= passed end, - lists:map(fun test_simple_n_element_queue/1, - lists:seq(1, 4))), - - %% 1-element priority Q - Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), - - %% 2-element same-priority Q - Q2 = priority_queue:in(bar, 1, Q1), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q2), - - %% 2-element different-priority Q - Q3 = priority_queue:in(bar, 2, Q1), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q3), - - %% 1-element negative priority Q - Q4 = priority_queue:in(foo, -1, priority_queue:new()), - {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - - %% merge 2 * 2-element multi-different-priority Qs - Q11 = priority_queue:join(Q6, Q5), - {true, false, 4, [{1, bar}, {0, foo}, {0, foo}, {0, bar}], - [bar, foo, foo, bar]} = test_priority_queue(Q11), - - %% and the other way around - Q12 = priority_queue:join(Q5, Q6), - {true, false, 4, [{1, bar}, {0, foo}, {0, bar}, {0, foo}], - [bar, foo, bar, foo]} = test_priority_queue(Q12), - - %% merge with negative priorities - Q13 = priority_queue:join(Q4, Q5), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q13), - - %% and the other way around - Q14 = priority_queue:join(Q5, Q4), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q14), - - %% joins with empty queues: - Q1 = priority_queue:join(Q, Q1), - Q1 = priority_queue:join(Q1, Q), - - %% insert with priority into non-empty zero-priority queue - Q15 = priority_queue:in(baz, 1, Q5), - {true, false, 3, [{1, baz}, {0, foo}, {0, bar}], [baz, foo, bar]} = - test_priority_queue(Q15), - - passed. - -priority_queue_in_all(Q, L) -> - lists:foldl(fun (X, Acc) -> priority_queue:in(X, Acc) end, Q, L). - -priority_queue_out_all(Q) -> - case priority_queue:out(Q) of - {empty, _} -> []; - {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] - end. - -test_priority_queue(Q) -> - {priority_queue:is_queue(Q), - priority_queue:is_empty(Q), - priority_queue:len(Q), - priority_queue:to_list(Q), - priority_queue_out_all(Q)}. - -test_simple_n_element_queue(N) -> - Items = lists:seq(1, N), - Q = priority_queue_in_all(priority_queue:new(), Items), - ToListRes = [{0, X} || X <- Items], - {true, false, N, ToListRes, Items} = test_priority_queue(Q), - passed. - -test_pg_local() -> - [P, Q] = [spawn(fun () -> receive X -> X end end) || _ <- [x, x]], - check_pg_local(ok, [], []), - check_pg_local(pg_local:join(a, P), [P], []), - check_pg_local(pg_local:join(b, P), [P], [P]), - check_pg_local(pg_local:join(a, P), [P, P], [P]), - check_pg_local(pg_local:join(a, Q), [P, P, Q], [P]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(a, P), [P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(b, P), [P, Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - [begin X ! done, - Ref = erlang:monitor(process, X), - receive {'DOWN', Ref, process, X, _Info} -> ok end - end || X <- [P, Q]], - check_pg_local(ok, [], []), - passed. - -check_pg_local(ok, APids, BPids) -> - ok = pg_local:sync(), - [true, true] = [lists:sort(Pids) == lists:sort(pg_local:get_members(Key)) || - {Key, Pids} <- [{a, APids}, {b, BPids}]]. - -test_unfold() -> - {[], test} = rabbit_misc:unfold(fun (_V) -> false end, test), - List = lists:seq(2,20,2), - {List, 0} = rabbit_misc:unfold(fun (0) -> false; - (N) -> {true, N*2, N-1} - end, 10), - passed. - -test_parsing() -> - passed = test_content_properties(), - passed = test_field_values(), - passed. - -test_content_properties() -> - test_content_prop_roundtrip([], <<0, 0>>), - test_content_prop_roundtrip([{bit, true}, {bit, false}, {bit, true}, {bit, false}], - <<16#A0, 0>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {bit, true}, {octet, undefined}, - {bit, true}], - <<16#E8,0,123>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {octet, 123}, {bit, true}], - <<16#F0,0,123,123>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, <<"hi">>}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#F8,0,2,"hi",16#D4,16#31>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, undefined}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#B8,0,16#D4,16#31>>), - test_content_prop_roundtrip([{table, [{<<"a signedint">>, signedint, 12345678}, - {<<"a longstr">>, longstr, <<"yes please">>}, - {<<"a decimal">>, decimal, {123, 12345678}}, - {<<"a timestamp">>, timestamp, 123456789012345}, - {<<"a nested table">>, table, - [{<<"one">>, signedint, 1}, - {<<"two">>, signedint, 2}]}]}], - << - % property-flags - 16#8000:16, - - % property-list: - - % table - 117:32, % table length in bytes - - 11,"a signedint", % name - "I",12345678:32, % type and value - - 9,"a longstr", - "S",10:32,"yes please", - - 9,"a decimal", - "D",123,12345678:32, - - 11,"a timestamp", - "T", 123456789012345:64, - - 14,"a nested table", - "F", - 18:32, - - 3,"one", - "I",1:32, - - 3,"two", - "I",2:32 >>), - case catch rabbit_binary_parser:parse_properties([bit, bit, bit, bit], <<16#A0,0,1>>) of - {'EXIT', content_properties_binary_overflow} -> passed; - V -> exit({got_success_but_expected_failure, V}) - end. - -test_field_values() -> - %% FIXME this does not test inexact numbers (double and float) yet, - %% because they won't pass the equality assertions - test_content_prop_roundtrip( - [{table, [{<<"longstr">>, longstr, <<"Here is a long string">>}, - {<<"signedint">>, signedint, 12345}, - {<<"decimal">>, decimal, {3, 123456}}, - {<<"timestamp">>, timestamp, 109876543209876}, - {<<"table">>, table, [{<<"one">>, signedint, 54321}, - {<<"two">>, longstr, <<"A long string">>}]}, - {<<"byte">>, byte, 255}, - {<<"long">>, long, 1234567890}, - {<<"short">>, short, 655}, - {<<"bool">>, bool, true}, - {<<"binary">>, binary, <<"a binary string">>}, - {<<"void">>, void, undefined}, - {<<"array">>, array, [{signedint, 54321}, - {longstr, <<"A long string">>}]} - - ]}], - << - % property-flags - 16#8000:16, - % table length in bytes - 228:32, - - 7,"longstr", "S", 21:32, "Here is a long string", % = 34 - 9,"signedint", "I", 12345:32/signed, % + 15 = 49 - 7,"decimal", "D", 3, 123456:32, % + 14 = 63 - 9,"timestamp", "T", 109876543209876:64, % + 19 = 82 - 5,"table", "F", 31:32, % length of table % + 11 = 93 - 3,"one", "I", 54321:32, % + 9 = 102 - 3,"two", "S", 13:32, "A long string",% + 22 = 124 - 4,"byte", "b", 255:8, % + 7 = 131 - 4,"long", "l", 1234567890:64, % + 14 = 145 - 5,"short", "s", 655:16, % + 9 = 154 - 4,"bool", "t", 1, % + 7 = 161 - 6,"binary", "x", 15:32, "a binary string", % + 27 = 188 - 4,"void", "V", % + 6 = 194 - 5,"array", "A", 23:32, % + 11 = 205 - "I", 54321:32, % + 5 = 210 - "S", 13:32, "A long string" % + 18 = 228 - >>), - passed. - -%% Test that content frames don't exceed frame-max -test_content_framing(FrameMax, Fragments) -> - [Header | Frames] = - rabbit_binary_generator:build_simple_content_frames( - 1, - #content{class_id = 0, properties_bin = <<>>, - payload_fragments_rev = Fragments}, - FrameMax), - % header is formatted correctly and the size is the total of the - % fragments - <<_FrameHeader:7/binary, _ClassAndWeight:4/binary, - BodySize:64/unsigned, _Rest/binary>> = list_to_binary(Header), - BodySize = size(list_to_binary(Fragments)), - false = lists:any( - fun (ContentFrame) -> - FrameBinary = list_to_binary(ContentFrame), - % assert - <<_TypeAndChannel:3/binary, - Size:32/unsigned, - _Payload:Size/binary, - 16#CE>> = FrameBinary, - size(FrameBinary) > FrameMax - end, - Frames), - passed. - -test_content_framing() -> - % no content - passed = test_content_framing(4096, []), - passed = test_content_framing(4096, [<<>>]), - % easily fit in one frame - passed = test_content_framing(4096, [<<"Easy">>]), - % exactly one frame (empty frame = 8 bytes) - passed = test_content_framing(11, [<<"One">>]), - % more than one frame - passed = test_content_framing(20, [<<"into more than one frame">>, - <<"This will have to go">>]), - passed. - -test_topic_match(P, R) -> - test_topic_match(P, R, true). - -test_topic_match(P, R, Expected) -> - case rabbit_exchange_type_topic:topic_matches(list_to_binary(P), - list_to_binary(R)) of - Expected -> - passed; - _ -> - {topic_match_failure, P, R} - end. - -test_topic_matching() -> - passed = test_topic_match("#", "test.test"), - passed = test_topic_match("#", ""), - passed = test_topic_match("#.T.R", "T.T.R"), - passed = test_topic_match("#.T.R", "T.R.T.R"), - passed = test_topic_match("#.Y.Z", "X.Y.Z.X.Y.Z"), - passed = test_topic_match("#.test", "test"), - passed = test_topic_match("#.test", "test.test"), - passed = test_topic_match("#.test", "ignored.test"), - passed = test_topic_match("#.test", "more.ignored.test"), - passed = test_topic_match("#.test", "notmatched", false), - passed = test_topic_match("#.z", "one.two.three.four", false), - passed. - -test_app_management() -> - %% starting, stopping, status - ok = control_action(stop_app, []), - ok = control_action(stop_app, []), - ok = control_action(status, []), - ok = control_action(start_app, []), - ok = control_action(start_app, []), - ok = control_action(status, []), - passed. - -test_log_management() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - Suffix = ".1", - - %% prepare basic logs - file:delete([MainLog, Suffix]), - file:delete([SaslLog, Suffix]), - - %% simple logs reopening - ok = control_action(rotate_logs, []), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% simple log rotation - ok = control_action(rotate_logs, [Suffix]), - [true, true] = non_empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% reopening logs with log rotation performed first - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = file:rename(MainLog, [MainLog, Suffix]), - ok = file:rename(SaslLog, [SaslLog, Suffix]), - ok = test_logs_working([MainLog, Suffix], [SaslLog, Suffix]), - ok = control_action(rotate_logs, []), - ok = test_logs_working(MainLog, SaslLog), - - %% log rotation on empty file - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = control_action(rotate_logs, [Suffix]), - [true, true] = empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - - %% original main log file is not writable - ok = make_files_non_writable([MainLog]), - {error, {cannot_rotate_main_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([MainLog], Suffix), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}]), - - %% original sasl log file is not writable - ok = make_files_non_writable([SaslLog]), - {error, {cannot_rotate_sasl_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([SaslLog], Suffix), - ok = add_log_handlers([{rabbit_sasl_report_file_h, SaslLog}]), - - %% logs with suffix are not writable - ok = control_action(rotate_logs, [Suffix]), - ok = make_files_non_writable([[MainLog, Suffix], [SaslLog, Suffix]]), - ok = control_action(rotate_logs, [Suffix]), - ok = test_logs_working(MainLog, SaslLog), - - %% original log files are not writable - ok = make_files_non_writable([MainLog, SaslLog]), - {error, {{cannot_rotate_main_logs, _}, - {cannot_rotate_sasl_logs, _}}} = control_action(rotate_logs, []), - - %% logging directed to tty (handlers were removed in last test) - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = application:set_env(kernel, error_logger, tty), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% rotate logs when logging is turned off - ok = application:set_env(sasl, sasl_error_logger, false), - ok = application:set_env(kernel, error_logger, silent), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% cleanup - ok = application:set_env(sasl, sasl_error_logger, {file, SaslLog}), - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}, - {rabbit_sasl_report_file_h, SaslLog}]), - passed. - -test_log_management_during_startup() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - - %% start application with simple tty logging - ok = control_action(stop_app, []), - ok = application:set_env(kernel, error_logger, tty), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = add_log_handlers([{error_logger_tty_h, []}, - {sasl_report_tty_h, []}]), - ok = control_action(start_app, []), - - %% start application with tty logging and - %% proper handlers not installed - ok = control_action(stop_app, []), - ok = error_logger:tty(false), - ok = delete_log_handlers([sasl_report_tty_h]), - ok = case catch control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_tty_no_handlers_test}); - {error, {cannot_log_to_tty, _, _}} -> ok - end, - - %% fix sasl logging - ok = application:set_env(sasl, sasl_error_logger, - {file, SaslLog}), - - %% start application with logging to non-existing directory - TmpLog = "/tmp/rabbit-tests/test.log", - delete_file(TmpLog), - ok = application:set_env(kernel, error_logger, {file, TmpLog}), - - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = control_action(start_app, []), - - %% start application with logging to directory with no - %% write permissions - TmpDir = "/tmp/rabbit-tests", - ok = set_permissions(TmpDir, 8#00400), - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_no_write_permission_dir_test}); - {error, {cannot_log_to_file, _, _}} -> ok - end, - - %% start application with logging to a subdirectory which - %% parent directory has no write permissions - TmpTestDir = "/tmp/rabbit-tests/no-permission/test/log", - ok = application:set_env(kernel, error_logger, {file, TmpTestDir}), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotatation_parent_dirs_test}); - {error, {cannot_log_to_file, _, - {error, {cannot_create_parent_dirs, _, eacces}}}} -> ok - end, - ok = set_permissions(TmpDir, 8#00700), - ok = set_permissions(TmpLog, 8#00600), - ok = delete_file(TmpLog), - ok = file:del_dir(TmpDir), - - %% start application with standard error_logger_file_h - %% handler not installed - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% start application with standard sasl handler not installed - %% and rabbit main log handler installed correctly - ok = delete_log_handlers([rabbit_sasl_report_file_h]), - ok = control_action(start_app, []), - passed. - -test_cluster_management() -> - - %% 'cluster' and 'reset' should only work if the app is stopped - {error, _} = control_action(cluster, []), - {error, _} = control_action(reset, []), - {error, _} = control_action(force_reset, []), - - ok = control_action(stop_app, []), - - %% various ways of creating a standalone node - NodeS = atom_to_list(node()), - ClusteringSequence = [[], - [NodeS], - ["invalid@invalid", NodeS], - [NodeS, "invalid@invalid"]], - - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(cluster, Arg), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(cluster, Arg), - ok - end, - ClusteringSequence), - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - - %% convert a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% join a non-existing cluster as a ram node - ok = control_action(reset, []), - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - SecondaryNode = rabbit_misc:makenode("hare"), - case net_adm:ping(SecondaryNode) of - pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", - [SecondaryNode]) - end, - - ok = control_action(start_app, []), - passed. - -test_cluster_management2(SecondaryNode) -> - NodeS = atom_to_list(node()), - SecondaryNodeS = atom_to_list(SecondaryNode), - - %% make a disk node - ok = control_action(reset, []), - ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - - %% join cluster as a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS, "invalid1@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% change cluster config while remaining in same cluster - ok = control_action(cluster, ["invalid2@invalid", SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join non-existing cluster as a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), - %% turn ram node into disk node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% convert a disk node into a ram node - ok = control_action(cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% turn a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% NB: this will log an inconsistent_database error, which is harmless - %% Turning cover on / off is OK even if we're not in general using cover, - %% it just turns the engine on / off, doesn't actually log anything. - cover:stop([SecondaryNode]), - true = disconnect_node(SecondaryNode), - pong = net_adm:ping(SecondaryNode), - cover:start([SecondaryNode]), - - %% leaving a cluster as a ram node - ok = control_action(reset, []), - %% ...and as a disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(reset, []), - - %% attempt to leave cluster when no other node is alive - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, SecondaryNode, []), - ok = control_action(stop_app, []), - {error, {no_running_cluster_nodes, _, _}} = - control_action(reset, []), - - %% leave system clustered, with the secondary node as a ram node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(force_reset, SecondaryNode, []), - ok = control_action(cluster, SecondaryNode, [NodeS]), - ok = control_action(start_app, SecondaryNode, []), - - passed. - -test_user_management() -> - - %% lots if stuff that should fail - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(change_password, ["foo", "baz"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - {error, {no_such_user, _}} = - control_action(set_permissions, ["foo", ".*", ".*", ".*"]), - {error, {no_such_user, _}} = - control_action(clear_permissions, ["foo"]), - {error, {no_such_user, _}} = - control_action(list_user_permissions, ["foo"]), - {error, {no_such_vhost, _}} = - control_action(list_permissions, ["-p", "/testhost"]), - {error, {invalid_regexp, _, _}} = - control_action(set_permissions, ["guest", "+foo", ".*", ".*"]), - - %% user creation - ok = control_action(add_user, ["foo", "bar"]), - {error, {user_already_exists, _}} = - control_action(add_user, ["foo", "bar"]), - ok = control_action(change_password, ["foo", "baz"]), - ok = control_action(list_users, []), - - %% vhost creation - ok = control_action(add_vhost, ["/testhost"]), - {error, {vhost_already_exists, _}} = - control_action(add_vhost, ["/testhost"]), - ok = control_action(list_vhosts, []), - - %% user/vhost mapping - ok = control_action(set_permissions, ["-p", "/testhost", - "foo", ".*", ".*", ".*"]), - ok = control_action(set_permissions, ["-p", "/testhost", - "foo", ".*", ".*", ".*"]), - ok = control_action(list_permissions, ["-p", "/testhost"]), - ok = control_action(list_user_permissions, ["foo"]), - - %% user/vhost unmapping - ok = control_action(clear_permissions, ["-p", "/testhost", "foo"]), - ok = control_action(clear_permissions, ["-p", "/testhost", "foo"]), - - %% vhost deletion - ok = control_action(delete_vhost, ["/testhost"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - - %% deleting a populated vhost - ok = control_action(add_vhost, ["/testhost"]), - ok = control_action(set_permissions, ["-p", "/testhost", - "foo", ".*", ".*", ".*"]), - ok = control_action(delete_vhost, ["/testhost"]), - - %% user deletion - ok = control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - - passed. - -test_server_status() -> - %% create a few things so there is some useful information to list - Writer = spawn(fun () -> receive shutdown -> ok end end), - Ch = rabbit_channel:start_link(1, self(), Writer, <<"user">>, <<"/">>, - self()), - [Q, Q2] = [Queue || Name <- [<<"foo">>, <<"bar">>], - {new, Queue = #amqqueue{}} <- - [rabbit_amqqueue:declare( - rabbit_misc:r(<<"/">>, queue, Name), - false, false, [], none)]], - - ok = rabbit_amqqueue:basic_consume(Q, true, Ch, undefined, - <<"ctag">>, true, undefined), - %% list queues - ok = info_action(list_queues, rabbit_amqqueue:info_keys(), true), - - %% list exchanges - ok = info_action(list_exchanges, rabbit_exchange:info_keys(), true), - - %% list bindings - ok = control_action(list_bindings, []), - - %% list connections - [#listener{host = H, port = P} | _] = - [L || L = #listener{node = N} <- rabbit_networking:active_listeners(), - N =:= node()], - - {ok, _C} = gen_tcp:connect(H, P, []), - timer:sleep(100), - ok = info_action(list_connections, - rabbit_networking:connection_info_keys(), false), - %% close_connection - [ConnPid] = rabbit_networking:connections(), - ok = control_action(close_connection, [rabbit_misc:pid_to_string(ConnPid), - "go away"]), - - %% list channels - ok = info_action(list_channels, rabbit_channel:info_keys(), false), - - %% list consumers - ok = control_action(list_consumers, []), - - %% cleanup - [{ok, _} = rabbit_amqqueue:delete(QR, false, false) || QR <- [Q, Q2]], - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_hooks() -> - %% Firing of hooks calls all hooks in an isolated manner - rabbit_hooks:subscribe(test_hook, test, {rabbit_tests, handle_hook, []}), - rabbit_hooks:subscribe(test_hook, test2, {rabbit_tests, handle_hook, []}), - rabbit_hooks:subscribe(test_hook2, test2, {rabbit_tests, handle_hook, []}), - rabbit_hooks:trigger(test_hook, [arg1, arg2]), - [arg1, arg2] = get(test_hook_test_fired), - [arg1, arg2] = get(test_hook_test2_fired), - undefined = get(test_hook2_test2_fired), - - %% Hook Deletion works - put(test_hook_test_fired, undefined), - put(test_hook_test2_fired, undefined), - rabbit_hooks:unsubscribe(test_hook, test), - rabbit_hooks:trigger(test_hook, [arg3, arg4]), - undefined = get(test_hook_test_fired), - [arg3, arg4] = get(test_hook_test2_fired), - undefined = get(test_hook2_test2_fired), - - %% Catches exceptions from bad hooks - rabbit_hooks:subscribe(test_hook3, test, {rabbit_tests, bad_handle_hook, []}), - ok = rabbit_hooks:trigger(test_hook3, []), - - %% Passing extra arguments to hooks - rabbit_hooks:subscribe(arg_hook, test, {rabbit_tests, extra_arg_hook, [1, 3]}), - rabbit_hooks:trigger(arg_hook, [arg1, arg2]), - {[arg1, arg2], 1, 3} = get(arg_hook_test_fired), - - %% Invoking Pids - Remote = fun () -> - receive - {rabbitmq_hook,[remote_test,test,[],Target]} -> - Target ! invoked - end - end, - P = spawn(Remote), - rabbit_hooks:subscribe(remote_test, test, {rabbit_hooks, notify_remote, [P, [self()]]}), - rabbit_hooks:trigger(remote_test, []), - receive - invoked -> ok - after 100 -> - io:format("Remote hook not invoked"), - throw(timeout) - end, - passed. - -test_memory_pressure_receiver(Pid) -> - receive - shutdown -> - ok; - {send_command, Method} -> - ok = case Method of - #'channel.flow'{} -> ok; - #'basic.qos_ok'{} -> ok; - #'channel.open_ok'{} -> ok - end, - Pid ! Method, - test_memory_pressure_receiver(Pid); - sync -> - Pid ! sync, - test_memory_pressure_receiver(Pid) - end. - -test_memory_pressure_receive_flow(Active) -> - receive #'channel.flow'{active = Active} -> ok - after 1000 -> throw(failed_to_receive_channel_flow) - end, - receive #'channel.flow'{} -> - throw(pipelining_sync_commands_detected) - after 0 -> - ok - end. - -test_memory_pressure_sync(Ch, Writer) -> - ok = rabbit_channel:do(Ch, #'basic.qos'{}), - Writer ! sync, - receive sync -> ok after 1000 -> throw(failed_to_receive_writer_sync) end, - receive #'basic.qos_ok'{} -> ok - after 1000 -> throw(failed_to_receive_basic_qos_ok) - end. - -test_memory_pressure_spawn() -> - Me = self(), - Writer = spawn(fun () -> test_memory_pressure_receiver(Me) end), - Ch = rabbit_channel:start_link(1, self(), Writer, <<"user">>, <<"/">>, - self()), - ok = rabbit_channel:do(Ch, #'channel.open'{}), - MRef = erlang:monitor(process, Ch), - receive #'channel.open_ok'{} -> ok - after 1000 -> throw(failed_to_receive_channel_open_ok) - end, - {Writer, Ch, MRef}. - -expect_normal_channel_termination(MRef, Ch) -> - receive {'DOWN', MRef, process, Ch, normal} -> ok - after 1000 -> throw(channel_failed_to_exit) - end. - -test_memory_pressure() -> - {Writer0, Ch0, MRef0} = test_memory_pressure_spawn(), - [ok = rabbit_channel:conserve_memory(Ch0, Conserve) || - Conserve <- [false, false, true, false, true, true, false]], - ok = test_memory_pressure_sync(Ch0, Writer0), - receive {'DOWN', MRef0, process, Ch0, Info0} -> - throw({channel_died_early, Info0}) - after 0 -> ok - end, - - %% we should have just 1 active=false waiting for us - ok = test_memory_pressure_receive_flow(false), - - %% if we reply with flow_ok, we should immediately get an - %% active=true back - ok = rabbit_channel:do(Ch0, #'channel.flow_ok'{active = false}), - ok = test_memory_pressure_receive_flow(true), - - %% if we publish at this point, the channel should die - Content = #content{class_id = element(1, rabbit_framing:method_id( - 'basic.publish')), - properties = none, - properties_bin = <<>>, - payload_fragments_rev = []}, - ok = rabbit_channel:do(Ch0, #'basic.publish'{}, Content), - expect_normal_channel_termination(MRef0, Ch0), - - {Writer1, Ch1, MRef1} = test_memory_pressure_spawn(), - ok = rabbit_channel:conserve_memory(Ch1, true), - ok = test_memory_pressure_receive_flow(false), - ok = rabbit_channel:do(Ch1, #'channel.flow_ok'{active = false}), - ok = test_memory_pressure_sync(Ch1, Writer1), - ok = rabbit_channel:conserve_memory(Ch1, false), - ok = test_memory_pressure_receive_flow(true), - %% send back the wrong flow_ok. Channel should die. - ok = rabbit_channel:do(Ch1, #'channel.flow_ok'{active = false}), - expect_normal_channel_termination(MRef1, Ch1), - - {_Writer2, Ch2, MRef2} = test_memory_pressure_spawn(), - %% just out of the blue, send a flow_ok. Life should end. - ok = rabbit_channel:do(Ch2, #'channel.flow_ok'{active = true}), - expect_normal_channel_termination(MRef2, Ch2), - - {_Writer3, Ch3, MRef3} = test_memory_pressure_spawn(), - ok = rabbit_channel:conserve_memory(Ch3, true), - receive {'DOWN', MRef3, process, Ch3, _} -> - ok - after 12000 -> - throw(channel_failed_to_exit) - end, - - alarm_handler:set_alarm({vm_memory_high_watermark, []}), - Me = self(), - Writer4 = spawn(fun () -> test_memory_pressure_receiver(Me) end), - Ch4 = rabbit_channel:start_link(1, self(), Writer4, <<"user">>, <<"/">>, - self()), - ok = rabbit_channel:do(Ch4, #'channel.open'{}), - MRef4 = erlang:monitor(process, Ch4), - Writer4 ! sync, - receive sync -> ok after 1000 -> throw(failed_to_receive_writer_sync) end, - receive #'channel.open_ok'{} -> throw(unexpected_channel_open_ok) - after 0 -> ok - end, - alarm_handler:clear_alarm(vm_memory_high_watermark), - Writer4 ! sync, - receive sync -> ok after 1000 -> throw(failed_to_receive_writer_sync) end, - receive #'channel.open_ok'{} -> ok - after 1000 -> throw(failed_to_receive_channel_open_ok) - end, - rabbit_channel:shutdown(Ch4), - expect_normal_channel_termination(MRef4, Ch4), - - passed. - -test_delegates_async(SecondaryNode) -> - Self = self(), - Sender = fun (Pid) -> Pid ! {invoked, Self} end, - - Responder = make_responder(fun ({invoked, Pid}) -> Pid ! response end), - - ok = delegate:invoke_no_result(spawn(Responder), Sender), - ok = delegate:invoke_no_result(spawn(SecondaryNode, Responder), Sender), - await_response(2), - - LocalPids = spawn_responders(node(), Responder, 10), - RemotePids = spawn_responders(SecondaryNode, Responder, 10), - ok = delegate:invoke_no_result(LocalPids ++ RemotePids, Sender), - await_response(20), - - passed. - -make_responder(FMsg) -> make_responder(FMsg, timeout). -make_responder(FMsg, Throw) -> - fun () -> - receive Msg -> FMsg(Msg) - after 1000 -> throw(Throw) - end - end. - -spawn_responders(Node, Responder, Count) -> - [spawn(Node, Responder) || _ <- lists:seq(1, Count)]. - -await_response(0) -> - ok; -await_response(Count) -> - receive - response -> ok, - await_response(Count - 1) - after 1000 -> - io:format("Async reply not received~n"), - throw(timeout) - end. - -must_exit(Fun) -> - try - Fun(), - throw(exit_not_thrown) - catch - exit:_ -> ok - end. - -test_delegates_sync(SecondaryNode) -> - Sender = fun (Pid) -> gen_server:call(Pid, invoked) end, - BadSender = fun (_Pid) -> exit(exception) end, - - Responder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end), - - BadResponder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end, bad_responder_died), - - response = delegate:invoke(spawn(Responder), Sender), - response = delegate:invoke(spawn(SecondaryNode, Responder), Sender), - - must_exit(fun () -> delegate:invoke(spawn(BadResponder), BadSender) end), - must_exit(fun () -> - delegate:invoke(spawn(SecondaryNode, BadResponder), BadSender) end), - - LocalGoodPids = spawn_responders(node(), Responder, 2), - RemoteGoodPids = spawn_responders(SecondaryNode, Responder, 2), - LocalBadPids = spawn_responders(node(), BadResponder, 2), - RemoteBadPids = spawn_responders(SecondaryNode, BadResponder, 2), - - {GoodRes, []} = delegate:invoke(LocalGoodPids ++ RemoteGoodPids, Sender), - true = lists:all(fun ({_, response}) -> true end, GoodRes), - GoodResPids = [Pid || {Pid, _} <- GoodRes], - - Good = ordsets:from_list(LocalGoodPids ++ RemoteGoodPids), - Good = ordsets:from_list(GoodResPids), - - {[], BadRes} = delegate:invoke(LocalBadPids ++ RemoteBadPids, BadSender), - true = lists:all(fun ({_, {exit, exception, _}}) -> true end, BadRes), - BadResPids = [Pid || {Pid, _} <- BadRes], - - Bad = ordsets:from_list(LocalBadPids ++ RemoteBadPids), - Bad = ordsets:from_list(BadResPids), - - passed. - -%--------------------------------------------------------------------- - -control_action(Command, Args) -> control_action(Command, node(), Args). - -control_action(Command, Node, Args) -> - case catch rabbit_control:action( - Command, Node, Args, - fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end) of - ok -> - io:format("done.~n"), - ok; - Other -> - io:format("failed.~n"), - Other - end. - -info_action(Command, Args, CheckVHost) -> - ok = control_action(Command, []), - if CheckVHost -> ok = control_action(Command, ["-p", "/"]); - true -> ok - end, - ok = control_action(Command, lists:map(fun atom_to_list/1, Args)), - {bad_argument, dummy} = control_action(Command, ["dummy"]), - ok. - -empty_files(Files) -> - [case file:read_file_info(File) of - {ok, FInfo} -> FInfo#file_info.size == 0; - Error -> Error - end || File <- Files]. - -non_empty_files(Files) -> - [case EmptyFile of - {error, Reason} -> {error, Reason}; - _ -> not(EmptyFile) - end || EmptyFile <- empty_files(Files)]. - -test_logs_working(MainLogFile, SaslLogFile) -> - ok = rabbit_log:error("foo bar"), - ok = error_logger:error_report(crash_report, [foo, bar]), - %% give the error loggers some time to catch up - timer:sleep(50), - [true, true] = non_empty_files([MainLogFile, SaslLogFile]), - ok. - -set_permissions(Path, Mode) -> - case file:read_file_info(Path) of - {ok, FInfo} -> file:write_file_info( - Path, - FInfo#file_info{mode=Mode}); - Error -> Error - end. - -clean_logs(Files, Suffix) -> - [begin - ok = delete_file(File), - ok = delete_file([File, Suffix]) - end || File <- Files], - ok. - -delete_file(File) -> - case file:delete(File) of - ok -> ok; - {error, enoent} -> ok; - Error -> Error - end. - -make_files_non_writable(Files) -> - [ok = file:write_file_info(File, #file_info{mode=0}) || - File <- Files], - ok. - -add_log_handlers(Handlers) -> - [ok = error_logger:add_report_handler(Handler, Args) || - {Handler, Args} <- Handlers], - ok. - -delete_log_handlers(Handlers) -> - [[] = error_logger:delete_report_handler(Handler) || - Handler <- Handlers], - ok. - -handle_hook(HookName, Handler, Args) -> - A = atom_to_list(HookName) ++ "_" ++ atom_to_list(Handler) ++ "_fired", - put(list_to_atom(A), Args). -bad_handle_hook(_, _, _) -> - bad:bad(). -extra_arg_hook(Hookname, Handler, Args, Extra1, Extra2) -> - handle_hook(Hookname, Handler, {Args, Extra1, Extra2}). diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl deleted file mode 100644 index 403120f1..00000000 --- a/src/rabbit_writer.erl +++ /dev/null @@ -1,223 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_writer). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([start/4, start_link/4, shutdown/1, mainloop/1]). --export([send_command/2, send_command/3, send_command_and_signal_back/3, - send_command_and_signal_back/4, send_command_and_notify/5]). --export([internal_send_command/4, internal_send_command/6]). - --import(gen_tcp). - --record(wstate, {sock, channel, frame_max, protocol}). - --define(HIBERNATE_AFTER, 5000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/4 :: - (socket(), channel_number(), non_neg_integer(), protocol()) -> pid()). --spec(start_link/4 :: - (socket(), channel_number(), non_neg_integer(), protocol()) -> pid()). --spec(send_command/2 :: (pid(), amqp_method_record()) -> 'ok'). --spec(send_command/3 :: (pid(), amqp_method_record(), content()) -> 'ok'). --spec(send_command_and_signal_back/3 :: (pid(), amqp_method(), pid()) -> 'ok'). --spec(send_command_and_signal_back/4 :: - (pid(), amqp_method(), content(), pid()) -> 'ok'). --spec(send_command_and_notify/5 :: - (pid(), pid(), pid(), amqp_method_record(), content()) -> 'ok'). --spec(internal_send_command/4 :: - (socket(), channel_number(), amqp_method_record(), protocol()) -> 'ok'). --spec(internal_send_command/6 :: - (socket(), channel_number(), amqp_method_record(), - content(), non_neg_integer(), protocol()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start(Sock, Channel, FrameMax, Protocol) -> - spawn(?MODULE, mainloop, [#wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}]). - -start_link(Sock, Channel, FrameMax, Protocol) -> - spawn_link(?MODULE, mainloop, [#wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}]). - -mainloop(State) -> - receive - Message -> ?MODULE:mainloop(handle_message(Message, State)) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, mainloop, [State]) - end. - -handle_message({send_command, MethodRecord}, - State = #wstate{sock = Sock, channel = Channel, - protocol = Protocol}) -> - ok = internal_send_command_async(Sock, Channel, MethodRecord, Protocol), - State; -handle_message({send_command, MethodRecord, Content}, - State = #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}) -> - ok = internal_send_command_async(Sock, Channel, MethodRecord, - Content, FrameMax, Protocol), - State; -handle_message({send_command_and_signal_back, MethodRecord, Parent}, - State = #wstate{sock = Sock, channel = Channel, - protocol = Protocol}) -> - ok = internal_send_command_async(Sock, Channel, MethodRecord, Protocol), - Parent ! rabbit_writer_send_command_signal, - State; -handle_message({send_command_and_signal_back, MethodRecord, Content, Parent}, - State = #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}) -> - ok = internal_send_command_async(Sock, Channel, MethodRecord, - Content, FrameMax, Protocol), - Parent ! rabbit_writer_send_command_signal, - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord, Content}, - State = #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}) -> - ok = internal_send_command_async(Sock, Channel, MethodRecord, - Content, FrameMax, Protocol), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({inet_reply, _, ok}, State) -> - State; -handle_message({inet_reply, _, Status}, _State) -> - exit({writer, send_failed, Status}); -handle_message(shutdown, _State) -> - exit(normal); -handle_message(Message, _State) -> - exit({writer, message_not_understood, Message}). - -%--------------------------------------------------------------------------- - -send_command(W, MethodRecord) -> - W ! {send_command, MethodRecord}, - ok. - -send_command(W, MethodRecord, Content) -> - W ! {send_command, MethodRecord, Content}, - ok. - -send_command_and_signal_back(W, MethodRecord, Parent) -> - W ! {send_command_and_signal_back, MethodRecord, Parent}, - ok. - -send_command_and_signal_back(W, MethodRecord, Content, Parent) -> - W ! {send_command_and_signal_back, MethodRecord, Content, Parent}, - ok. - -send_command_and_notify(W, Q, ChPid, MethodRecord, Content) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord, Content}, - ok. - -shutdown(W) -> - W ! shutdown, - ok. - -%--------------------------------------------------------------------------- - -assemble_frames(Channel, MethodRecord, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, none), - rabbit_binary_generator:build_simple_method_frame(Channel, MethodRecord, - Protocol). - -assemble_frames(Channel, MethodRecord, Content, FrameMax, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, Content), - MethodName = rabbit_misc:method_record_type(MethodRecord), - true = rabbit_framing:method_has_content(MethodName), % assertion - MethodFrame = rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol), - ContentFrames = rabbit_binary_generator:build_simple_content_frames( - Channel, Content, FrameMax), - [MethodFrame | ContentFrames]. - -tcp_send(Sock, Data) -> - rabbit_misc:throw_on_error(inet_error, - fun () -> rabbit_net:send(Sock, Data) end). - -internal_send_command(Sock, Channel, MethodRecord, Protocol) -> - ok = tcp_send(Sock, assemble_frames(Channel, MethodRecord, Protocol)). - -internal_send_command(Sock, Channel, MethodRecord, Content, FrameMax, - Protocol) -> - ok = tcp_send(Sock, assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -%% gen_tcp:send/2 does a selective receive of {inet_reply, Sock, -%% Status} to obtain the result. That is bad when it is called from -%% the writer since it requires scanning of the writers possibly quite -%% large message queue. -%% -%% So instead we lift the code from prim_inet:send/2, which is what -%% gen_tcp:send/2 calls, do the first half here and then just process -%% the result code in handle_message/2 as and when it arrives. -%% -%% This means we may end up happily sending data down a closed/broken -%% socket, but that's ok since a) data in the buffers will be lost in -%% any case (so qualitatively we are no worse off than if we used -%% gen_tcp:send/2), and b) we do detect the changed socket status -%% eventually, i.e. when we get round to handling the result code. -%% -%% Also note that the port has bounded buffers and port_command blocks -%% when these are full. So the fact that we process the result -%% asynchronously does not impact flow control. -internal_send_command_async(Sock, Channel, MethodRecord, Protocol) -> - true = port_cmd(Sock, assemble_frames(Channel, MethodRecord, Protocol)), - ok. - -internal_send_command_async(Sock, Channel, MethodRecord, Content, FrameMax, - Protocol) -> - true = port_cmd(Sock, assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)), - ok. - -port_cmd(Sock, Data) -> - try rabbit_net:port_command(Sock, Data) - catch error:Error -> exit({writer, send_failed, Error}) - end. diff --git a/src/speed_test_queue_backends.erl b/src/speed_test_queue_backends.erl deleted file mode 100644 index d63a12c9..00000000 --- a/src/speed_test_queue_backends.erl +++ /dev/null @@ -1,97 +0,0 @@ --module(speed_test_queue_backends). - --compile([export_all]). - --define(M, rabbit_disk_backed_queue). -%%-define(M, rabbit_disk_backed_queue_nogen). -%%-define(M, rabbit_ram_backed_queue). -%%-define(M, rabbit_ram_backed_queue_nogen). - -fill_drain_noproc(N, Size) -> - summarize(fill_drain_noproc, N, Size, - fun (_Q) -> - drain_f(enqueue_n_f(queue:new(), N, blob_for_size(Size))) - end). - -fill_drain(N, Size) -> - summarize(fill_drain, N, Size, fun (Q) -> - enqueue_n(Q, N, blob_for_size(Size)), - drain(Q) - end). - -fill_destroy(N, Size) -> - summarize(fill_destroy, N, Size, fun (Q) -> - enqueue_n(Q, N, blob_for_size(Size)) - end). - -simultaneous_drain(N, Size) -> - summarize(simultaneous_drain, N, Size, - fun (Q) -> - Parent = self(), - spawn_link(fun () -> - enqueue_n(Q, N, blob_for_size(Size)), - ?M:enqueue(done, Q), - Parent ! done1 - end), - spawn_link(fun () -> - drain_until(done, Q), - Parent ! done2 - end), - receive done1 -> ok end, - receive done2 -> ok end - end). - -blob_for_size(Size) -> - SizeBits = Size * 8, - <<99:SizeBits/integer>>. - -enqueue_n_f(Q, 0, _Blob) -> - Q; -enqueue_n_f(Q, N, Blob) -> - enqueue_n_f(queue:in(Blob, Q), N - 1, Blob). - -drain_f(Q) -> - case queue:out(Q) of - {{value, _}, Q1} -> - drain_f(Q1); - {empty, _} -> - ok - end. - -enqueue_n(_Q, 0, _Blob) -> - ok; -enqueue_n(Q, N, Blob) -> - ?M:enqueue(Blob, Q), - enqueue_n(Q, N - 1, Blob). - -drain_until(What, Q) -> - case ?M:dequeue(Q) of - empty -> - drain_until(What, Q); - {ok, What} -> - ok; - {ok, _Other} -> - drain_until(What, Q) - end. - -drain(Q) -> - case ?M:dequeue(Q) of - empty -> - ok; - {ok, _Item} -> - drain(Q) - end. - -summarize(Kind, N, Size, F) -> - TimeMicrosec = with_q(F), - io:format("~p(~p, ~p) using ~p: ~p microsec, ~p Hz~n", - [Kind, N, Size, ?M, - TimeMicrosec, - float(N) / (TimeMicrosec / 1000000.0)]), - ok. - -with_q(F) -> - Q = ?M:new([{backing_filename, "/tmp/speed_test_queue_backends.tmp"}]), - {TimeMicrosec, _Result} = timer:tc(erlang, apply, [F, [Q]]), - ok = ?M:destroy(Q), - TimeMicrosec. diff --git a/src/supervisor2.erl b/src/supervisor2.erl deleted file mode 100644 index 0b1d7265..00000000 --- a/src/supervisor2.erl +++ /dev/null @@ -1,917 +0,0 @@ -%% This file is a copy of supervisor.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is supervisor2 -%% -%% 2) there is a new strategy called -%% simple_one_for_one_terminate. This is exactly the same as for -%% simple_one_for_one, except that children *are* explicitly -%% terminated as per the shutdown component of the child_spec. -%% -%% All modifications are (C) 2010 LShift Ltd. -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(supervisor2). - --behaviour(gen_server). - -%% External exports --export([start_link/2,start_link/3, - start_child/2, restart_child/2, - delete_child/2, terminate_child/2, - which_children/1, - check_childspecs/1]). - --export([behaviour_info/1]). - -%% Internal exports --export([init/1, handle_call/3, handle_info/2, terminate/2, code_change/3]). --export([handle_cast/2]). - --define(DICT, dict). - --record(state, {name, - strategy, - children = [], - dynamics = ?DICT:new(), - intensity, - period, - restarts = [], - module, - args}). - --record(child, {pid = undefined, % pid is undefined when child is not running - name, - mfa, - restart_type, - shutdown, - child_type, - modules = []}). - --define(is_simple(State), State#state.strategy =:= simple_one_for_one orelse - State#state.strategy =:= simple_one_for_one_terminate). --define(is_terminate_simple(State), - State#state.strategy =:= simple_one_for_one_terminate). - -behaviour_info(callbacks) -> - [{init,1}]; -behaviour_info(_Other) -> - undefined. - -%%% --------------------------------------------------- -%%% This is a general process supervisor built upon gen_server.erl. -%%% Servers/processes should/could also be built using gen_server.erl. -%%% SupName = {local, atom()} | {global, atom()}. -%%% --------------------------------------------------- -start_link(Mod, Args) -> - gen_server:start_link(?MODULE, {self, Mod, Args}, []). - -start_link(SupName, Mod, Args) -> - gen_server:start_link(SupName, ?MODULE, {SupName, Mod, Args}, []). - -%%% --------------------------------------------------- -%%% Interface functions. -%%% --------------------------------------------------- -start_child(Supervisor, ChildSpec) -> - call(Supervisor, {start_child, ChildSpec}). - -restart_child(Supervisor, Name) -> - call(Supervisor, {restart_child, Name}). - -delete_child(Supervisor, Name) -> - call(Supervisor, {delete_child, Name}). - -%%----------------------------------------------------------------- -%% Func: terminate_child/2 -%% Returns: ok | {error, Reason} -%% Note that the child is *always* terminated in some -%% way (maybe killed). -%%----------------------------------------------------------------- -terminate_child(Supervisor, Name) -> - call(Supervisor, {terminate_child, Name}). - -which_children(Supervisor) -> - call(Supervisor, which_children). - -call(Supervisor, Req) -> - gen_server:call(Supervisor, Req, infinity). - -check_childspecs(ChildSpecs) when is_list(ChildSpecs) -> - case check_startspec(ChildSpecs) of - {ok, _} -> ok; - Error -> {error, Error} - end; -check_childspecs(X) -> {error, {badarg, X}}. - -%%% --------------------------------------------------- -%%% -%%% Initialize the supervisor. -%%% -%%% --------------------------------------------------- -init({SupName, Mod, Args}) -> - process_flag(trap_exit, true), - case Mod:init(Args) of - {ok, {SupFlags, StartSpec}} -> - case init_state(SupName, SupFlags, Mod, Args) of - {ok, State} when ?is_simple(State) -> - init_dynamic(State, StartSpec); - {ok, State} -> - init_children(State, StartSpec); - Error -> - {stop, {supervisor_data, Error}} - end; - ignore -> - ignore; - Error -> - {stop, {bad_return, {Mod, init, Error}}} - end. - -init_children(State, StartSpec) -> - SupName = State#state.name, - case check_startspec(StartSpec) of - {ok, Children} -> - case start_children(Children, SupName) of - {ok, NChildren} -> - {ok, State#state{children = NChildren}}; - {error, NChildren} -> - terminate_children(NChildren, SupName), - {stop, shutdown} - end; - Error -> - {stop, {start_spec, Error}} - end. - -init_dynamic(State, [StartSpec]) -> - case check_startspec([StartSpec]) of - {ok, Children} -> - {ok, State#state{children = Children}}; - Error -> - {stop, {start_spec, Error}} - end; -init_dynamic(_State, StartSpec) -> - {stop, {bad_start_spec, StartSpec}}. - -%%----------------------------------------------------------------- -%% Func: start_children/2 -%% Args: Children = [#child] in start order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Purpose: Start all children. The new list contains #child's -%% with pids. -%% Returns: {ok, NChildren} | {error, NChildren} -%% NChildren = [#child] in termination order (reversed -%% start order) -%%----------------------------------------------------------------- -start_children(Children, SupName) -> start_children(Children, [], SupName). - -start_children([Child|Chs], NChildren, SupName) -> - case do_start_child(SupName, Child) of - {ok, Pid} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {ok, Pid, _Extra} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {error, Reason} -> - report_error(start_error, Reason, Child, SupName), - {error, lists:reverse(Chs) ++ [Child | NChildren]} - end; -start_children([], NChildren, _SupName) -> - {ok, NChildren}. - -do_start_child(SupName, Child) -> - #child{mfa = {M, F, A}} = Child, - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, What} -> {error, What}; - What -> {error, What} - end. - -do_start_child_i(M, F, A) -> - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, Error} -> - {error, Error}; - What -> - {error, What} - end. - - -%%% --------------------------------------------------- -%%% -%%% Callback functions. -%%% -%%% --------------------------------------------------- -handle_call({start_child, EArgs}, _From, State) when ?is_simple(State) -> - #child{mfa = {M, F, A}} = hd(State#state.children), - Args = A ++ EArgs, - case do_start_child_i(M, F, Args) of - {ok, Pid} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid, Extra}, NState}; - What -> - {reply, What, State} - end; - -%%% The requests terminate_child, delete_child and restart_child are -%%% invalid for simple_one_for_one and simple_one_for_one_terminate -%%% supervisors. -handle_call({_Req, _Data}, _From, State) when ?is_simple(State) -> - {reply, {error, State#state.strategy}, State}; - -handle_call({start_child, ChildSpec}, _From, State) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - {Resp, NState} = handle_start_child(Child, State), - {reply, Resp, NState}; - What -> - {reply, {error, What}, State} - end; - -handle_call({restart_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid, Extra}, NState}; - Error -> - {reply, Error, State} - end; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({delete_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - NState = remove_child(Child, State), - {reply, ok, NState}; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({terminate_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} -> - NChild = do_terminate(Child, State#state.name), - {reply, ok, replace_child(NChild, State)}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call(which_children, _From, State) when ?is_simple(State) -> - [#child{child_type = CT, modules = Mods}] = State#state.children, - Reply = lists:map(fun ({Pid, _}) -> {undefined, Pid, CT, Mods} end, - ?DICT:to_list(State#state.dynamics)), - {reply, Reply, State}; - -handle_call(which_children, _From, State) -> - Resp = - lists:map(fun (#child{pid = Pid, name = Name, - child_type = ChildType, modules = Mods}) -> - {Name, Pid, ChildType, Mods} - end, - State#state.children), - {reply, Resp, State}. - - -%%% Hopefully cause a function-clause as there is no API function -%%% that utilizes cast. -handle_cast(null, State) -> - error_logger:error_msg("ERROR: Supervisor received cast-message 'null'~n", - []), - - {noreply, State}. - -%% -%% Take care of terminated children. -%% -handle_info({'EXIT', Pid, Reason}, State) -> - case restart_child(Pid, Reason, State) of - {ok, State1} -> - {noreply, State1}; - {shutdown, State1} -> - {stop, shutdown, State1} - end; - -handle_info(Msg, State) -> - error_logger:error_msg("Supervisor received unexpected message: ~p~n", - [Msg]), - {noreply, State}. -%% -%% Terminate this server. -%% -terminate(_Reason, State) when ?is_terminate_simple(State) -> - terminate_simple_children( - hd(State#state.children), State#state.dynamics, State#state.name), - ok; -terminate(_Reason, State) -> - terminate_children(State#state.children, State#state.name), - ok. - -%% -%% Change code for the supervisor. -%% Call the new call-back module and fetch the new start specification. -%% Combine the new spec. with the old. If the new start spec. is -%% not valid the code change will not succeed. -%% Use the old Args as argument to Module:init/1. -%% NOTE: This requires that the init function of the call-back module -%% does not have any side effects. -%% -code_change(_, State, _) -> - case (State#state.module):init(State#state.args) of - {ok, {SupFlags, StartSpec}} -> - case catch check_flags(SupFlags) of - ok -> - {Strategy, MaxIntensity, Period} = SupFlags, - update_childspec(State#state{strategy = Strategy, - intensity = MaxIntensity, - period = Period}, - StartSpec); - Error -> - {error, Error} - end; - ignore -> - {ok, State}; - Error -> - Error - end. - -check_flags({Strategy, MaxIntensity, Period}) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - ok; -check_flags(What) -> - {bad_flags, What}. - -update_childspec(State, StartSpec) when ?is_simple(State) -> - case check_startspec(StartSpec) of - {ok, [Child]} -> - {ok, State#state{children = [Child]}}; - Error -> - {error, Error} - end; - -update_childspec(State, StartSpec) -> - case check_startspec(StartSpec) of - {ok, Children} -> - OldC = State#state.children, % In reverse start order ! - NewC = update_childspec1(OldC, Children, []), - {ok, State#state{children = NewC}}; - Error -> - {error, Error} - end. - -update_childspec1([Child|OldC], Children, KeepOld) -> - case update_chsp(Child, Children) of - {ok,NewChildren} -> - update_childspec1(OldC, NewChildren, KeepOld); - false -> - update_childspec1(OldC, Children, [Child|KeepOld]) - end; -update_childspec1([], Children, KeepOld) -> - % Return them in (keeped) reverse start order. - lists:reverse(Children ++ KeepOld). - -update_chsp(OldCh, Children) -> - case lists:map(fun (Ch) when OldCh#child.name =:= Ch#child.name -> - Ch#child{pid = OldCh#child.pid}; - (Ch) -> - Ch - end, - Children) of - Children -> - false; % OldCh not found in new spec. - NewC -> - {ok, NewC} - end. - -%%% --------------------------------------------------- -%%% Start a new child. -%%% --------------------------------------------------- - -handle_start_child(Child, State) -> - case get_child(Child#child.name, State) of - false -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - Children = State#state.children, - {{ok, Pid}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {ok, Pid, Extra} -> - Children = State#state.children, - {{ok, Pid, Extra}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {error, What} -> - {{error, {What, Child}}, State} - end; - {value, OldChild} when OldChild#child.pid =/= undefined -> - {{error, {already_started, OldChild#child.pid}}, State}; - {value, _OldChild} -> - {{error, already_present}, State} - end. - -%%% --------------------------------------------------- -%%% Restart. A process has terminated. -%%% Returns: {ok, #state} | {shutdown, #state} -%%% --------------------------------------------------- - -restart_child(Pid, Reason, State) when ?is_simple(State) -> - case ?DICT:find(Pid, State#state.dynamics) of - {ok, Args} -> - [Child] = State#state.children, - RestartType = Child#child.restart_type, - {M, F, _} = Child#child.mfa, - NChild = Child#child{pid = Pid, mfa = {M, F, Args}}, - do_restart(RestartType, Reason, NChild, State); - error -> - {ok, State} - end; -restart_child(Pid, Reason, State) -> - Children = State#state.children, - case lists:keysearch(Pid, #child.pid, Children) of - {value, Child} -> - RestartType = Child#child.restart_type, - do_restart(RestartType, Reason, Child, State); - _ -> - {ok, State} - end. - -do_restart(permanent, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(_, normal, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(_, shutdown, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(transient, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(temporary, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - NState = state_del_child(Child, State), - {ok, NState}. - -restart(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState); - {terminate, NState} -> - report_error(shutdown, reached_max_restart_intensity, - Child, State#state.name), - {shutdown, remove_child(Child, NState)} - end. - -restart(Strategy, Child, State) - when Strategy =:= simple_one_for_one orelse - Strategy =:= simple_one_for_one_terminate -> - #child{mfa = {M, F, A}} = Child, - Dynamics = ?DICT:erase(Child#child.pid, State#state.dynamics), - case do_start_child_i(M, F, A) of - {ok, Pid} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {ok, Pid, _Extra} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {error, Error} -> - report_error(start_error, Error, Child, State#state.name), - restart(Child, State) - end; -restart(one_for_one, Child, State) -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {ok, Pid, _Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {error, Reason} -> - report_error(start_error, Reason, Child, State#state.name), - restart(Child, State) - end; -restart(rest_for_one, Child, State) -> - {ChAfter, ChBefore} = split_child(Child#child.pid, State#state.children), - ChAfter2 = terminate_children(ChAfter, State#state.name), - case start_children(ChAfter2, State#state.name) of - {ok, ChAfter3} -> - {ok, State#state{children = ChAfter3 ++ ChBefore}}; - {error, ChAfter3} -> - restart(Child, State#state{children = ChAfter3 ++ ChBefore}) - end; -restart(one_for_all, Child, State) -> - Children1 = del_child(Child#child.pid, State#state.children), - Children2 = terminate_children(Children1, State#state.name), - case start_children(Children2, State#state.name) of - {ok, NChs} -> - {ok, State#state{children = NChs}}; - {error, NChs} -> - restart(Child, State#state{children = NChs}) - end. - -%%----------------------------------------------------------------- -%% Func: terminate_children/2 -%% Args: Children = [#child] in termination order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Returns: NChildren = [#child] in -%% startup order (reversed termination order) -%%----------------------------------------------------------------- -terminate_children(Children, SupName) -> - terminate_children(Children, SupName, []). - -terminate_children([Child | Children], SupName, Res) -> - NChild = do_terminate(Child, SupName), - terminate_children(Children, SupName, [NChild | Res]); -terminate_children([], _SupName, Res) -> - Res. - -terminate_simple_children(Child, Dynamics, SupName) -> - dict:fold(fun (Pid, _Args, _Any) -> - do_terminate(Child#child{pid = Pid}, SupName) - end, ok, Dynamics), - ok. - -do_terminate(Child, SupName) when Child#child.pid =/= undefined -> - case shutdown(Child#child.pid, - Child#child.shutdown) of - ok -> - Child#child{pid = undefined}; - {error, OtherReason} -> - report_error(shutdown_error, OtherReason, Child, SupName), - Child#child{pid = undefined} - end; -do_terminate(Child, _SupName) -> - Child. - -%%----------------------------------------------------------------- -%% Shutdowns a child. We must check the EXIT value -%% of the child, because it might have died with another reason than -%% the wanted. In that case we want to report the error. We put a -%% monitor on the child an check for the 'DOWN' message instead of -%% checking for the 'EXIT' message, because if we check the 'EXIT' -%% message a "naughty" child, who does unlink(Sup), could hang the -%% supervisor. -%% Returns: ok | {error, OtherReason} (this should be reported) -%%----------------------------------------------------------------- -shutdown(Pid, brutal_kill) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, kill), - receive - {'DOWN', _MRef, process, Pid, killed} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end; - {error, Reason} -> - {error, Reason} - end; - -shutdown(Pid, Time) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, shutdown), %% Try to shutdown gracefully - receive - {'DOWN', _MRef, process, Pid, shutdown} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - after Time -> - exit(Pid, kill), %% Force termination. - receive - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end - end; - {error, Reason} -> - {error, Reason} - end. - -%% Help function to shutdown/2 switches from link to monitor approach -monitor_child(Pid) -> - - %% Do the monitor operation first so that if the child dies - %% before the monitoring is done causing a 'DOWN'-message with - %% reason noproc, we will get the real reason in the 'EXIT'-message - %% unless a naughty child has already done unlink... - erlang:monitor(process, Pid), - unlink(Pid), - - receive - %% If the child dies before the unlik we must empty - %% the mail-box of the 'EXIT'-message and the 'DOWN'-message. - {'EXIT', Pid, Reason} -> - receive - {'DOWN', _, process, Pid, _} -> - {error, Reason} - end - after 0 -> - %% If a naughty child did unlink and the child dies before - %% monitor the result will be that shutdown/2 receives a - %% 'DOWN'-message with reason noproc. - %% If the child should die after the unlink there - %% will be a 'DOWN'-message with a correct reason - %% that will be handled in shutdown/2. - ok - end. - - -%%----------------------------------------------------------------- -%% Child/State manipulating functions. -%%----------------------------------------------------------------- -state_del_child(#child{pid = Pid}, State) when ?is_simple(State) -> - NDynamics = ?DICT:erase(Pid, State#state.dynamics), - State#state{dynamics = NDynamics}; -state_del_child(Child, State) -> - NChildren = del_child(Child#child.name, State#state.children), - State#state{children = NChildren}. - -del_child(Name, [Ch|Chs]) when Ch#child.name =:= Name -> - [Ch#child{pid = undefined} | Chs]; -del_child(Pid, [Ch|Chs]) when Ch#child.pid =:= Pid -> - [Ch#child{pid = undefined} | Chs]; -del_child(Name, [Ch|Chs]) -> - [Ch|del_child(Name, Chs)]; -del_child(_, []) -> - []. - -%% Chs = [S4, S3, Ch, S1, S0] -%% Ret: {[S4, S3, Ch], [S1, S0]} -split_child(Name, Chs) -> - split_child(Name, Chs, []). - -split_child(Name, [Ch|Chs], After) when Ch#child.name =:= Name -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Pid, [Ch|Chs], After) when Ch#child.pid =:= Pid -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Name, [Ch|Chs], After) -> - split_child(Name, Chs, [Ch | After]); -split_child(_, [], After) -> - {lists:reverse(After), []}. - -get_child(Name, State) -> - lists:keysearch(Name, #child.name, State#state.children). -replace_child(Child, State) -> - Chs = do_replace_child(Child, State#state.children), - State#state{children = Chs}. - -do_replace_child(Child, [Ch|Chs]) when Ch#child.name =:= Child#child.name -> - [Child | Chs]; -do_replace_child(Child, [Ch|Chs]) -> - [Ch|do_replace_child(Child, Chs)]. - -remove_child(Child, State) -> - Chs = lists:keydelete(Child#child.name, #child.name, State#state.children), - State#state{children = Chs}. - -%%----------------------------------------------------------------- -%% Func: init_state/4 -%% Args: SupName = {local, atom()} | {global, atom()} | self -%% Type = {Strategy, MaxIntensity, Period} -%% Strategy = one_for_one | one_for_all | simple_one_for_one | -%% rest_for_one -%% MaxIntensity = integer() -%% Period = integer() -%% Mod :== atom() -%% Arsg :== term() -%% Purpose: Check that Type is of correct type (!) -%% Returns: {ok, #state} | Error -%%----------------------------------------------------------------- -init_state(SupName, Type, Mod, Args) -> - case catch init_state1(SupName, Type, Mod, Args) of - {ok, State} -> - {ok, State}; - Error -> - Error - end. - -init_state1(SupName, {Strategy, MaxIntensity, Period}, Mod, Args) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - {ok, #state{name = supname(SupName,Mod), - strategy = Strategy, - intensity = MaxIntensity, - period = Period, - module = Mod, - args = Args}}; -init_state1(_SupName, Type, _, _) -> - {invalid_type, Type}. - -validStrategy(simple_one_for_one_terminate) -> true; -validStrategy(simple_one_for_one) -> true; -validStrategy(one_for_one) -> true; -validStrategy(one_for_all) -> true; -validStrategy(rest_for_one) -> true; -validStrategy(What) -> throw({invalid_strategy, What}). - -validIntensity(Max) when is_integer(Max), - Max >= 0 -> true; -validIntensity(What) -> throw({invalid_intensity, What}). - -validPeriod(Period) when is_integer(Period), - Period > 0 -> true; -validPeriod(What) -> throw({invalid_period, What}). - -supname(self,Mod) -> {self(),Mod}; -supname(N,_) -> N. - -%%% ------------------------------------------------------ -%%% Check that the children start specification is valid. -%%% Shall be a six (6) tuple -%%% {Name, Func, RestartType, Shutdown, ChildType, Modules} -%%% where Name is an atom -%%% Func is {Mod, Fun, Args} == {atom, atom, list} -%%% RestartType is permanent | temporary | transient -%%% Shutdown = integer() | infinity | brutal_kill -%%% ChildType = supervisor | worker -%%% Modules = [atom()] | dynamic -%%% Returns: {ok, [#child]} | Error -%%% ------------------------------------------------------ - -check_startspec(Children) -> check_startspec(Children, []). - -check_startspec([ChildSpec|T], Res) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - case lists:keymember(Child#child.name, #child.name, Res) of - true -> {duplicate_child_name, Child#child.name}; - false -> check_startspec(T, [Child | Res]) - end; - Error -> Error - end; -check_startspec([], Res) -> - {ok, lists:reverse(Res)}. - -check_childspec({Name, Func, RestartType, Shutdown, ChildType, Mods}) -> - catch check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods); -check_childspec(X) -> {invalid_child_spec, X}. - -check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods) -> - validName(Name), - validFunc(Func), - validRestartType(RestartType), - validChildType(ChildType), - validShutdown(Shutdown, ChildType), - validMods(Mods), - {ok, #child{name = Name, mfa = Func, restart_type = RestartType, - shutdown = Shutdown, child_type = ChildType, modules = Mods}}. - -validChildType(supervisor) -> true; -validChildType(worker) -> true; -validChildType(What) -> throw({invalid_child_type, What}). - -validName(_Name) -> true. - -validFunc({M, F, A}) when is_atom(M), - is_atom(F), - is_list(A) -> true; -validFunc(Func) -> throw({invalid_mfa, Func}). - -validRestartType(permanent) -> true; -validRestartType(temporary) -> true; -validRestartType(transient) -> true; -validRestartType(RestartType) -> throw({invalid_restart_type, RestartType}). - -validShutdown(Shutdown, _) - when is_integer(Shutdown), Shutdown > 0 -> true; -validShutdown(infinity, supervisor) -> true; -validShutdown(brutal_kill, _) -> true; -validShutdown(Shutdown, _) -> throw({invalid_shutdown, Shutdown}). - -validMods(dynamic) -> true; -validMods(Mods) when is_list(Mods) -> - lists:foreach(fun (Mod) -> - if - is_atom(Mod) -> ok; - true -> throw({invalid_module, Mod}) - end - end, - Mods); -validMods(Mods) -> throw({invalid_modules, Mods}). - -%%% ------------------------------------------------------ -%%% Add a new restart and calculate if the max restart -%%% intensity has been reached (in that case the supervisor -%%% shall terminate). -%%% All restarts accured inside the period amount of seconds -%%% are kept in the #state.restarts list. -%%% Returns: {ok, State'} | {terminate, State'} -%%% ------------------------------------------------------ - -add_restart(State) -> - I = State#state.intensity, - P = State#state.period, - R = State#state.restarts, - Now = erlang:now(), - R1 = add_restart([Now|R], Now, P), - State1 = State#state{restarts = R1}, - case length(R1) of - CurI when CurI =< I -> - {ok, State1}; - _ -> - {terminate, State1} - end. - -add_restart([R|Restarts], Now, Period) -> - case inPeriod(R, Now, Period) of - true -> - [R|add_restart(Restarts, Now, Period)]; - _ -> - [] - end; -add_restart([], _, _) -> - []. - -inPeriod(Time, Now, Period) -> - case difference(Time, Now) of - T when T > Period -> - false; - _ -> - true - end. - -%% -%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored) -%% Calculate the time elapsed in seconds between two timestamps. -%% If MegaSecs is equal just subtract Secs. -%% Else calculate the Mega difference and add the Secs difference, -%% note that Secs difference can be negative, e.g. -%% {827, 999999, 676} diff {828, 1, 653753} == > 2 secs. -%% -difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM -> - ((CurM - TimeM) * 1000000) + (CurS - TimeS); -difference({_, TimeS, _}, {_, CurS, _}) -> - CurS - TimeS. - -%%% ------------------------------------------------------ -%%% Error and progress reporting. -%%% ------------------------------------------------------ - -report_error(Error, Reason, Child, SupName) -> - ErrorMsg = [{supervisor, SupName}, - {errorContext, Error}, - {reason, Reason}, - {offender, extract_child(Child)}], - error_logger:error_report(supervisor_report, ErrorMsg). - - -extract_child(Child) -> - [{pid, Child#child.pid}, - {name, Child#child.name}, - {mfa, Child#child.mfa}, - {restart_type, Child#child.restart_type}, - {shutdown, Child#child.shutdown}, - {child_type, Child#child.child_type}]. - -report_progress(Child, SupName) -> - Progress = [{supervisor, SupName}, - {started, extract_child(Child)}], - error_logger:info_report(progress, Progress). diff --git a/src/test_intervals.erl b/src/test_intervals.erl deleted file mode 100644 index 509d1c46..00000000 --- a/src/test_intervals.erl +++ /dev/null @@ -1,144 +0,0 @@ --module(test_intervals). - --export([all/0]). --compile(export_all). - -all() -> - {failing, []} = {failing, failing()}, - ok = ranges_tests(), - ok = is_element_tests(), - ok = first_fit_tests(), - ok. - -cases() -> - [{intersection,false,false,{false,[2,3,6,7,9,10]}}, - {intersection,false,true,{false,[1,2,3,4,12,13]}}, - {intersection,true,false,{false,[5,6,7,8,11,12,13]}}, - {intersection,true,true,{true,[1,4,5,8,9,10,11]}}, - {union,false,false,{false,[1,4,5,8,9,10,11]}}, - {union,false,true,{true,[5,6,7,8,11,12,13]}}, - {union,true,false,{true,[1,2,3,4,12,13]}}, - {union,true,true,{true,[2,3,6,7,9,10]}}, - {symmetric_difference,false,false,{false,[1,2,3,4,5,6,7,8,11]}}, - {symmetric_difference,false,true,{true,[1,2,3,4,5,6,7,8,11]}}, - {symmetric_difference,true,false,{true,[1,2,3,4,5,6,7,8,11]}}, - {symmetric_difference,true,true,{false,[1,2,3,4,5,6,7,8,11]}}, - {difference,false,false,{false,[1,2,3,4,12,13]}}, - {difference,false,true,{false,[2,3,6,7,9,10]}}, - {difference,true,false,{true,[1,4,5,8,9,10,11]}}, - {difference,true,true,{false,[5,6,7,8,11,12,13]}}]. - -failing() -> - lists:flatmap(fun run1/1, cases()). - -run1({Op, A, B, Expected}) -> - case merge(Op, A, B) of - Expected -> - []; - Actual -> - [{Op, A, B, Actual}] - end. - -%% 0 1 2 3 4 5 6 7 8 9 A B C D E F -%% | | | | | | | | | | | | | | | | -%% ------ -- -- -- -%% -- ------ -- -- ----==== - -topline() -> [1, 4, 6, 7, 9, 10, 12, 13]. -bottomline() -> [2, 3, 5, 8, 9, 10, 11, 12, 13]. - -merge(Op, S1, S2) -> - intervals:merge(Op, {S1, topline()}, {S2, bottomline()}). - -rendercase({Op, S1, S2, Expected}) -> - I1 = {S1, topline()}, - I2 = {S2, bottomline()}, - Result = intervals:merge(Op, I1, I2), - io:format("********* ~p:~n", [Op]), - io:format("I1: " ++ renderline(I1)), - io:format("I2: " ++ renderline(I2)), - io:format("Actual: " ++ renderline(Result)), - io:format("Expected: " ++ renderline(Expected)), - io:format("~n"), - Result. - -renderall() -> - lists:foreach(fun rendercase/1, cases()). - -renderline({Initial, Toggles}) -> - lists:flatten([renderfirstlast(Initial), renderline(0, Initial, Toggles), 13,10]). - -renderfirstlast(true) -> - "===="; -renderfirstlast(false) -> - " ". - -rendercell(true) -> - "--"; -rendercell(false) -> - " ". - -renderline(Pos, State, []) - when Pos < 15 -> - [rendercell(State), renderline(Pos + 1, State, [])]; -renderline(_Pos, State, []) -> - renderfirstlast(State); -renderline(Pos, State, Rest = [Toggle | _]) - when Pos < Toggle -> - [rendercell(State), renderline(Pos + 1, State, Rest)]; -renderline(Pos, State, [Toggle | Rest]) - when Pos == Toggle -> - [rendercell(not State), renderline(Pos + 1, not State, Rest)]. - -ranges_tests() -> - Empty = intervals:empty(), - {range_empty_test, Empty} = {range_empty_test, intervals:range(22, 22)}, - BottomLine = bottomline(), - {ranges_test1, {false, BottomLine}} = {ranges_test1, intervals:ranges([{2, 3}, - {5, 8}, - {9, 10}, - {11, 12}, - {13, inf}])}, - ok. - -is_element_test(Cases, R) -> - NR = intervals:invert(R), - lists:foreach(fun ({E, Expected}) -> - {E, Expected} = {E, intervals:is_element(E, R)} - end, Cases), - lists:foreach(fun ({E, Expected}) -> - NotExpected = not Expected, - {E, NotExpected} = {E, intervals:is_element(E, NR)} - end, Cases), - ok. - -is_element_tests() -> - ok = is_element_test([{5, true}, - {-5, false}, - {15, false}, - {0, true}, - {10, false}, - {10.1, false}, - {0.9, true}], - intervals:range(0, 10)), - ok = is_element_test([{"", false}, - {"just", true}, - {"maybe", true}, - {"not", false}, - {"testing", false}, - {"zow", true}], - intervals:union(intervals:range("a", "n"), - intervals:range("z", "{"))), - ok. - -first_fit_tests() -> - R1 = intervals:ranges([{2, 3}, {5, 10}]), - {ok, 2} = intervals:first_fit(1, R1), - {ok, 5} = intervals:first_fit(2, R1), - {ok, 5} = intervals:first_fit(5, R1), - none = intervals:first_fit(6, R1), - none = intervals:first_fit(inf, R1), - R2 = intervals:union(R1, intervals:range(20, inf)), - {ok, 20} = intervals:first_fit(6, R2), - {ok, 20} = intervals:first_fit(inf, R2), - ok. diff --git a/src/worker_pool.erl b/src/worker_pool.erl deleted file mode 100644 index 97e07545..00000000 --- a/src/worker_pool.erl +++ /dev/null @@ -1,155 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(worker_pool). - -%% Generic worker pool manager. -%% -%% Supports nested submission of jobs (nested jobs always run -%% immediately in current worker process). -%% -%% Possible future enhancements: -%% -%% 1. Allow priorities (basically, change the pending queue to a -%% priority_queue). - --behaviour(gen_server2). - --export([start_link/0, submit/1, submit_async/1, idle/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(submit/1 :: (fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/1 :: - (fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(state, { available, pending }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], - [{timeout, infinity}]). - -submit(Fun) -> - case get(worker_pool_worker) of - true -> worker_pool_worker:run(Fun); - _ -> Pid = gen_server2:call(?SERVER, next_free, infinity), - worker_pool_worker:submit(Pid, Fun) - end. - -submit_async(Fun) -> - gen_server2:cast(?SERVER, {run_async, Fun}). - -idle(WId) -> - gen_server2:cast(?SERVER, {idle, WId}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state { pending = queue:new(), available = queue:new() }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(next_free, From, State = #state { available = Avail, - pending = Pending }) -> - case queue:out(Avail) of - {empty, _Avail} -> - {noreply, - State #state { pending = queue:in({next_free, From}, Pending) }, - hibernate}; - {{value, WId}, Avail1} -> - {reply, get_worker_pid(WId), State #state { available = Avail1 }, - hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({idle, WId}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, case queue:out(Pending) of - {empty, _Pending} -> - State #state { available = queue:in(WId, Avail) }; - {{value, {next_free, From}}, Pending1} -> - gen_server2:reply(From, get_worker_pid(WId)), - State #state { pending = Pending1 }; - {{value, {run_async, Fun}}, Pending1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { pending = Pending1 } - end, hibernate}; - -handle_cast({run_async, Fun}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, - case queue:out(Avail) of - {empty, _Avail} -> - State #state { pending = queue:in({run_async, Fun}, Pending)}; - {{value, WId}, Avail1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { available = Avail1 } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. - -%%---------------------------------------------------------------------------- - -get_worker_pid(WId) -> - [{WId, Pid, _Type, _Modules} | _] = - lists:dropwhile(fun ({Id, _Pid, _Type, _Modules}) - when Id =:= WId -> false; - (_) -> true - end, - supervisor:which_children(worker_pool_sup)), - Pid. diff --git a/src/worker_pool_sup.erl b/src/worker_pool_sup.erl deleted file mode 100644 index 4ded63a8..00000000 --- a/src/worker_pool_sup.erl +++ /dev/null @@ -1,69 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(worker_pool_sup). - --behaviour(supervisor). - --export([start_link/0, start_link/1]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(start_link/1 :: - (non_neg_integer()) -> {'ok', pid()} | 'ignore' | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link() -> - start_link(erlang:system_info(schedulers)). - -start_link(WCount) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [WCount]). - -%%---------------------------------------------------------------------------- - -init([WCount]) -> - {ok, {{one_for_one, 10, 10}, - [{worker_pool, {worker_pool, start_link, []}, transient, - 16#ffffffff, worker, [worker_pool]} | - [{N, {worker_pool_worker, start_link, [N]}, transient, 16#ffffffff, - worker, [worker_pool_worker]} || N <- lists:seq(1, WCount)]]}}. diff --git a/src/worker_pool_worker.erl b/src/worker_pool_worker.erl deleted file mode 100644 index 57901fd5..00000000 --- a/src/worker_pool_worker.erl +++ /dev/null @@ -1,118 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(worker_pool_worker). - --behaviour(gen_server2). - --export([start_link/1, submit/2, submit_async/2, run/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (any()) -> {'ok', pid()} | 'ignore' | {'error', any()}). --spec(submit/2 :: (pid(), fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/2 :: - (pid(), fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). --spec(run/1 :: (fun (() -> A)) -> A; - ({atom(), atom(), [any()]}) -> any()). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(WId) -> - gen_server2:start_link(?MODULE, [WId], [{timeout, infinity}]). - -submit(Pid, Fun) -> - gen_server2:call(Pid, {submit, Fun}, infinity). - -submit_async(Pid, Fun) -> - gen_server2:cast(Pid, {submit_async, Fun}). - -set_maximum_since_use(Pid, Age) -> - gen_server2:pcast(Pid, 8, {set_maximum_since_use, Age}). - -run({M, F, A}) -> - apply(M, F, A); -run(Fun) -> - Fun(). - -%%---------------------------------------------------------------------------- - -init([WId]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - ok = worker_pool:idle(WId), - put(worker_pool_worker, true), - {ok, WId, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({submit, Fun}, From, WId) -> - gen_server2:reply(From, run(Fun)), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({submit_async, Fun}, WId) -> - run(Fun), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_cast({set_maximum_since_use, Age}, WId) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, WId, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. -- cgit v1.2.1 From bc8f139356b45c5b744cec2ce08dd85fd8a3b4a2 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Wed, 25 Aug 2010 18:14:19 +0100 Subject: Set default paths for cygwin --- scripts/rabbitmq-server | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 9310752f..d75dddce 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -35,10 +35,20 @@ NODENAME=rabbit@${HOSTNAME%%.*} SERVER_ERL_ARGS="+K true +A30 +P 1048576 \ -kernel inet_default_listen_options [{nodelay,true}] \ -kernel inet_default_connect_options [{nodelay,true}]" -CLUSTER_CONFIG_FILE=/etc/rabbitmq/rabbitmq_cluster.config -CONFIG_FILE=/etc/rabbitmq/rabbitmq -LOG_BASE=/var/log/rabbitmq -MNESIA_BASE=/var/lib/rabbitmq/mnesia + +if [ "$OSTYPE" = "cygwin" ] +then + RABBITMQ_BASE=`cygpath -ms "$APPDATA"`/RabbitMQ + CLUSTER_CONFIG_FILE=$RABBITMQ_BASE/rabbitmq_cluster.config + CONFIG_FILE=$RABBITMQ_BASE/rabbitmq + LOG_BASE=$RABBITMQ_BASE/log + MNESIA_BASE=$RABBITMQ_BASE/db +else + CLUSTER_CONFIG_FILE=/etc/rabbitmq/rabbitmq_cluster.config + CONFIG_FILE=/etc/rabbitmq/rabbitmq + LOG_BASE=/var/log/rabbitmq + MNESIA_BASE=/var/lib/rabbitmq/mnesia +fi SERVER_START_ARGS= . `dirname $0`/rabbitmq-env -- cgit v1.2.1 From 899abb81213fc453c08e69d917cfe012f415afe0 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 10 Sep 2010 17:36:51 +0100 Subject: remove files from junk --- src/rabbit_binding.erl | 378 ----------------------------------------- src/rabbit_channel_sup.erl | 96 ----------- src/rabbit_channel_sup_sup.erl | 65 ------- src/rabbit_connection_sup.erl | 99 ----------- 4 files changed, 638 deletions(-) delete mode 100644 src/rabbit_binding.erl delete mode 100644 src/rabbit_channel_sup.erl delete mode 100644 src/rabbit_channel_sup_sup.erl delete mode 100644 src/rabbit_connection_sup.erl diff --git a/src/rabbit_binding.erl b/src/rabbit_binding.erl deleted file mode 100644 index bb29580f..00000000 --- a/src/rabbit_binding.erl +++ /dev/null @@ -1,378 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_binding). --include("rabbit.hrl"). - --export([recover/0, exists/1, add/1, remove/1, add/2, remove/2, list/1]). --export([list_for_exchange/1, list_for_queue/1, list_for_exchange_and_queue/2]). --export([info_keys/0, info/1, info/2, info_all/1, info_all/2]). -%% these must all be run inside a mnesia tx --export([has_for_exchange/1, remove_for_exchange/1, - remove_for_queue/1, remove_transient_for_queue/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([key/0]). - --type(key() :: binary()). - --type(bind_errors() :: rabbit_types:error('queue_not_found' | - 'exchange_not_found' | - 'exchange_and_queue_not_found')). --type(bind_res() :: 'ok' | bind_errors()). --type(inner_fun() :: - fun((rabbit_types:exchange(), queue()) -> - rabbit_types:ok_or_error(rabbit_types:amqp_error()))). --type(bindings() :: [rabbit_types:binding()]). - --spec(recover/0 :: () -> [rabbit_types:binding()]). --spec(exists/1 :: (rabbit_types:binding()) -> boolean() | bind_errors()). --spec(add/1 :: (rabbit_types:binding()) -> bind_res()). --spec(remove/1 :: (rabbit_types:binding()) -> - bind_res() | rabbit_types:error('binding_not_found')). --spec(add/2 :: (rabbit_types:binding(), inner_fun()) -> bind_res()). --spec(remove/2 :: (rabbit_types:binding(), inner_fun()) -> - bind_res() | rabbit_types:error('binding_not_found')). --spec(list/1 :: (rabbit_types:vhost()) -> bindings()). --spec(list_for_exchange/1 :: (rabbit_exchange:name()) -> bindings()). --spec(list_for_queue/1 :: (rabbit_amqqueue:name()) -> bindings()). --spec(list_for_exchange_and_queue/2 :: - (rabbit_exchange:name(), rabbit_amqqueue:name()) -> bindings()). --spec(info_keys/0 :: () -> [rabbit_types:info_key()]). --spec(info/1 :: (rabbit_types:binding()) -> [rabbit_types:info()]). --spec(info/2 :: (rabbit_types:binding(), [rabbit_types:info_key()]) -> - [rabbit_types:info()]). --spec(info_all/1 :: (rabbit_types:vhost()) -> [[rabbit_types:info()]]). --spec(info_all/2 ::(rabbit_types:vhost(), [rabbit_types:info_key()]) - -> [[rabbit_types:info()]]). --spec(has_for_exchange/1 :: (rabbit_exchange:name()) -> boolean()). --spec(remove_for_exchange/1 :: (rabbit_exchange:name()) -> bindings()). --spec(remove_for_queue/1 :: - (rabbit_amqqueue:name()) -> fun (() -> any())). --spec(remove_transient_for_queue/1 :: - (rabbit_amqqueue:name()) -> fun (() -> any())). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [exchange_name, queue_name, routing_key, arguments]). - -recover() -> - rabbit_misc:table_fold( - fun (Route = #route{binding = B}, Acc) -> - {_, ReverseRoute} = route_with_reverse(Route), - ok = mnesia:write(rabbit_route, Route, write), - ok = mnesia:write(rabbit_reverse_route, ReverseRoute, write), - [B | Acc] - end, [], rabbit_durable_route). - -exists(Binding) -> - binding_action( - Binding, - fun (_X, _Q, B) -> mnesia:read({rabbit_route, B}) /= [] end). - -add(Binding) -> add(Binding, fun (_X, _Q) -> ok end). - -remove(Binding) -> remove(Binding, fun (_X, _Q) -> ok end). - -add(Binding, InnerFun) -> - case binding_action( - Binding, - fun (X, Q, B) -> - %% this argument is used to check queue exclusivity; - %% in general, we want to fail on that in preference to - %% anything else - case InnerFun(X, Q) of - ok -> - case mnesia:read({rabbit_route, B}) of - [] -> Durable = (X#exchange.durable andalso - Q#amqqueue.durable), - ok = sync_binding( - B, Durable, - fun mnesia:write/3), - {new, X, B}; - [_] -> {existing, X, B} - end; - {error, _} = E -> - E - end - end) of - {new, Exchange = #exchange{ type = Type }, B} -> - ok = (type_to_module(Type)):add_binding(Exchange, B), - rabbit_event:notify(binding_created, info(B)); - {existing, _, _} -> - ok; - {error, _} = Err -> - Err - end. - -remove(Binding, InnerFun) -> - case binding_action( - Binding, - fun (X, Q, B) -> - case mnesia:match_object(rabbit_route, #route{binding = B}, - write) of - [] -> {error, binding_not_found}; - [_] -> case InnerFun(X, Q) of - ok -> - Durable = (X#exchange.durable andalso - Q#amqqueue.durable), - ok = sync_binding( - B, Durable, - fun mnesia:delete_object/3), - Deleted = - rabbit_exchange:maybe_auto_delete(X), - {{Deleted, X}, B}; - {error, _} = E -> - E - end - end - end) of - {error, _} = Err -> - Err; - {{IsDeleted, X = #exchange{ type = Type }}, B} -> - Module = type_to_module(Type), - case IsDeleted of - auto_deleted -> ok = Module:delete(X, [B]); - not_deleted -> ok = Module:remove_bindings(X, [B]) - end, - rabbit_event:notify(binding_deleted, info(B)), - ok - end. - -list(VHostPath) -> - Route = #route{binding = #binding{ - exchange_name = rabbit_misc:r(VHostPath, exchange), - queue_name = rabbit_misc:r(VHostPath, queue), - _ = '_'}, - _ = '_'}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_exchange(ExchangeName) -> - Route = #route{binding = #binding{exchange_name = ExchangeName, _ = '_'}}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_queue(QueueName) -> - Route = #route{binding = #binding{queue_name = QueueName, _ = '_'}}, - [reverse_binding(B) || #reverse_route{reverse_binding = B} <- - mnesia:dirty_match_object(rabbit_reverse_route, - reverse_route(Route))]. - -list_for_exchange_and_queue(ExchangeName, QueueName) -> - Route = #route{binding = #binding{exchange_name = ExchangeName, - queue_name = QueueName, - _ = '_'}}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, B) -> [{Item, i(Item, B)} || Item <- Items]. - -i(exchange_name, #binding{exchange_name = XName}) -> XName; -i(queue_name, #binding{queue_name = QName}) -> QName; -i(routing_key, #binding{key = RoutingKey}) -> RoutingKey; -i(arguments, #binding{args = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(B = #binding{}) -> infos(?INFO_KEYS, B). - -info(B = #binding{}, Items) -> infos(Items, B). - -info_all(VHostPath) -> map(VHostPath, fun (B) -> info(B) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (B) -> info(B, Items) end). - -has_for_exchange(ExchangeName) -> - Match = #route{binding = #binding{exchange_name = ExchangeName, _ = '_'}}, - %% we need to check for durable routes here too in case a bunch of - %% routes to durable queues have been removed temporarily as a - %% result of a node failure - contains(rabbit_route, Match) orelse contains(rabbit_durable_route, Match). - -remove_for_exchange(ExchangeName) -> - [begin - ok = mnesia:delete_object(rabbit_reverse_route, - reverse_route(Route), write), - ok = delete_forward_routes(Route), - Route#route.binding - end || Route <- mnesia:match_object( - rabbit_route, - #route{binding = #binding{exchange_name = ExchangeName, - _ = '_'}}, - write)]. - -remove_for_queue(QueueName) -> - remove_for_queue(QueueName, fun delete_forward_routes/1). - -remove_transient_for_queue(QueueName) -> - remove_for_queue(QueueName, fun delete_transient_forward_routes/1). - -%%---------------------------------------------------------------------------- - -binding_action(Binding = #binding{exchange_name = ExchangeName, - queue_name = QueueName, - args = Arguments}, Fun) -> - call_with_exchange_and_queue( - ExchangeName, QueueName, - fun (X, Q) -> - SortedArgs = rabbit_misc:sort_field_table(Arguments), - Fun(X, Q, Binding#binding{args = SortedArgs}) - end). - -sync_binding(Binding, Durable, Fun) -> - ok = case Durable of - true -> Fun(rabbit_durable_route, - #route{binding = Binding}, write); - false -> ok - end, - {Route, ReverseRoute} = route_with_reverse(Binding), - ok = Fun(rabbit_route, Route, write), - ok = Fun(rabbit_reverse_route, ReverseRoute, write), - ok. - -call_with_exchange_and_queue(Exchange, Queue, Fun) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> case {mnesia:read({rabbit_exchange, Exchange}), - mnesia:read({rabbit_queue, Queue})} of - {[X], [Q]} -> Fun(X, Q); - {[ ], [_]} -> {error, exchange_not_found}; - {[_], [ ]} -> {error, queue_not_found}; - {[ ], [ ]} -> {error, exchange_and_queue_not_found} - end - end). - -%% Used with atoms from records; e.g., the type is expected to exist. -type_to_module(T) -> - {ok, Module} = rabbit_exchange_type_registry:lookup_module(T), - Module. - -contains(Table, MatchHead) -> - continue(mnesia:select(Table, [{MatchHead, [], ['$_']}], 1, read)). - -continue('$end_of_table') -> false; -continue({[_|_], _}) -> true; -continue({[], Continuation}) -> continue(mnesia:select(Continuation)). - -remove_for_queue(QueueName, FwdDeleteFun) -> - DeletedBindings = - [begin - Route = reverse_route(ReverseRoute), - ok = FwdDeleteFun(Route), - ok = mnesia:delete_object(rabbit_reverse_route, - ReverseRoute, write), - Route#route.binding - end || ReverseRoute - <- mnesia:match_object( - rabbit_reverse_route, - reverse_route(#route{binding = #binding{ - queue_name = QueueName, - _ = '_'}}), - write)], - Grouped = group_bindings_and_auto_delete( - lists:keysort(#binding.exchange_name, DeletedBindings), []), - fun () -> - lists:foreach( - fun ({{IsDeleted, X = #exchange{ type = Type }}, Bs}) -> - Module = type_to_module(Type), - case IsDeleted of - auto_deleted -> Module:delete(X, Bs); - not_deleted -> Module:remove_bindings(X, Bs) - end - end, Grouped) - end. - -%% Requires that its input binding list is sorted in exchange-name -%% order, so that the grouping of bindings (for passing to -%% group_bindings_and_auto_delete1) works properly. -group_bindings_and_auto_delete([], Acc) -> - Acc; -group_bindings_and_auto_delete( - [B = #binding{exchange_name = ExchangeName} | Bs], Acc) -> - group_bindings_and_auto_delete(ExchangeName, Bs, [B], Acc). - -group_bindings_and_auto_delete( - ExchangeName, [B = #binding{exchange_name = ExchangeName} | Bs], - Bindings, Acc) -> - group_bindings_and_auto_delete(ExchangeName, Bs, [B | Bindings], Acc); -group_bindings_and_auto_delete(ExchangeName, Removed, Bindings, Acc) -> - %% either Removed is [], or its head has a non-matching ExchangeName - [X] = mnesia:read({rabbit_exchange, ExchangeName}), - NewAcc = [{{rabbit_exchange:maybe_auto_delete(X), X}, Bindings} | Acc], - group_bindings_and_auto_delete(Removed, NewAcc). - -delete_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write), - ok = mnesia:delete_object(rabbit_durable_route, Route, write). - -delete_transient_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write). - -route_with_reverse(#route{binding = Binding}) -> - route_with_reverse(Binding); -route_with_reverse(Binding = #binding{}) -> - Route = #route{binding = Binding}, - {Route, reverse_route(Route)}. - -reverse_route(#route{binding = Binding}) -> - #reverse_route{reverse_binding = reverse_binding(Binding)}; - -reverse_route(#reverse_route{reverse_binding = Binding}) -> - #route{binding = reverse_binding(Binding)}. - -reverse_binding(#reverse_binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}) -> - #binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}; - -reverse_binding(#binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}) -> - #reverse_binding{exchange_name = Exchange, - queue_name = Queue, - key = Key, - args = Args}. diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl deleted file mode 100644 index 02199a65..00000000 --- a/src/rabbit_channel_sup.erl +++ /dev/null @@ -1,96 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_channel_sup). - --behaviour(supervisor2). - --export([start_link/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([start_link_args/0]). - --type(start_link_args() :: - {rabbit_types:protocol(), rabbit_net:socket(), - rabbit_channel:channel_number(), non_neg_integer(), pid(), - rabbit_access_control:username(), rabbit_types:vhost(), pid()}). - --spec(start_link/1 :: (start_link_args()) -> {'ok', pid(), pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link({Protocol, Sock, Channel, FrameMax, ReaderPid, Username, VHost, - Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, WriterPid} = - supervisor2:start_child( - SupPid, - {writer, {rabbit_writer, start_link, - [Sock, Channel, FrameMax, Protocol, ReaderPid]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_writer]}), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ReaderPid, WriterPid, Username, VHost, - Collector, start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, FramingChannelPid} = - supervisor2:start_child( - SupPid, - {framing_channel, {rabbit_framing_channel, start_link, - [ReaderPid, ChannelPid, Protocol]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_framing_channel]}), - {ok, SupPid, FramingChannelPid}. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. - -start_limiter_fun(SupPid) -> - fun (UnackedCount) -> - Me = self(), - {ok, _Pid} = - supervisor2:start_child( - SupPid, - {limiter, {rabbit_limiter, start_link, [Me, UnackedCount]}, - transient, ?MAX_WAIT, worker, [rabbit_limiter]}) - end. diff --git a/src/rabbit_channel_sup_sup.erl b/src/rabbit_channel_sup_sup.erl deleted file mode 100644 index d1938805..00000000 --- a/src/rabbit_channel_sup_sup.erl +++ /dev/null @@ -1,65 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_channel_sup_sup). - --behaviour(supervisor2). - --export([start_link/0, start_channel/2]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(start_channel/2 :: (pid(), rabbit_channel_sup:start_link_args()) -> - {'ok', pid(), pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor2:start_link(?MODULE, []). - -start_channel(Pid, Args) -> - {ok, ChSupPid, _} = Result = supervisor2:start_child(Pid, [Args]), - link(ChSupPid), - Result. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{channel_sup, {rabbit_channel_sup, start_link, []}, - temporary, infinity, supervisor, [rabbit_channel_sup]}]}}. diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl deleted file mode 100644 index b3821d3b..00000000 --- a/src/rabbit_connection_sup.erl +++ /dev/null @@ -1,99 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_connection_sup). - --behaviour(supervisor2). - --export([start_link/0, reader/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid(), pid()}). --spec(reader/1 :: (pid()) -> pid()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link() -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, ChannelSupSupPid} = - supervisor2:start_child( - SupPid, - {channel_sup_sup, {rabbit_channel_sup_sup, start_link, []}, - intrinsic, infinity, supervisor, [rabbit_channel_sup_sup]}), - {ok, Collector} = - supervisor2:start_child( - SupPid, - {collector, {rabbit_queue_collector, start_link, []}, - intrinsic, ?MAX_WAIT, worker, [rabbit_queue_collector]}), - {ok, ReaderPid} = - supervisor2:start_child( - SupPid, - {reader, {rabbit_reader, start_link, - [ChannelSupSupPid, Collector, start_heartbeat_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_reader]}), - {ok, SupPid, ReaderPid}. - -reader(Pid) -> - hd(supervisor2:find_child(Pid, reader)). - -%%-------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. - -start_heartbeat_fun(SupPid) -> - fun (_Sock, 0) -> - none; - (Sock, TimeoutSec) -> - Parent = self(), - {ok, Sender} = - supervisor2:start_child( - SupPid, {heartbeat_sender, - {rabbit_heartbeat, start_heartbeat_sender, - [Parent, Sock, TimeoutSec]}, - transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}), - {ok, Receiver} = - supervisor2:start_child( - SupPid, {heartbeat_receiver, - {rabbit_heartbeat, start_heartbeat_receiver, - [Parent, Sock, TimeoutSec]}, - transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}), - {Sender, Receiver} - end. -- cgit v1.2.1 From 429ac97e045d7cf70d5f917be9e52de735d4d539 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 17 Sep 2010 15:26:12 +0100 Subject: Support adding an ebin for testing. --- scripts/rabbitmq-server | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 8e26663a..29e93630 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -98,6 +98,7 @@ if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then then RABBITMQ_BOOT_FILE="${RABBITMQ_MNESIA_DIR}/plugins-scratch/rabbit" RABBITMQ_EBIN_PATH="" + [ "x" != "x$RABBITMQ_TEST_EBIN" ] && RABBITMQ_EBIN_PATH="-pa ${RABBITMQ_TEST_EBIN}" else exit 1 fi -- cgit v1.2.1 From a3ff902905f11286c79327ca9de923874061720f Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 20 Sep 2010 16:07:21 +0100 Subject: Query memory on AIX --- src/vm_memory_monitor.erl | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl index e658f005..773a980b 100644 --- a/src/vm_memory_monitor.erl +++ b/src/vm_memory_monitor.erl @@ -296,6 +296,12 @@ get_total_memory({unix, sunos}) -> Dict = dict:from_list(lists:map(fun parse_line_sunos/1, Lines)), dict:fetch('Memory size', Dict); +get_total_memory({unix, aix}) -> + File = cmd("/usr/bin/vmstat -v"), + Lines = string:tokens(File, "\n"), + Dict = dict:from_list(lists:map(fun parse_line_aix/1, Lines)), + dict:fetch('memory pages', Dict * 4 * 1024); + get_total_memory(_OsType) -> unknown. @@ -341,6 +347,17 @@ parse_line_sunos(Line) -> [Name] -> {list_to_atom(Name), none} end. +%% Lines look like " 12345 memory pages" +%% or " 80.1 maxpin percentage" +parse_line_aix(Line) -> + [Value | NameWords] = string:tokens(Line, " "), + Name = string:join(NameWords, " "), + {list_to_atom(Name), + case lists:member($., Value) of + true -> trunc(list_to_float(Value)); + _ -> list_to_integer(Value) + end}. + freebsd_sysctl(Def) -> list_to_integer(cmd("/sbin/sysctl -n " ++ Def) -- "\n"). -- cgit v1.2.1 From 21792775749dd8b08ed505a4d1f8e30c6bd7972a Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Thu, 23 Sep 2010 15:47:22 +0100 Subject: Arithmetic on numbers only --- src/vm_memory_monitor.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl index 773a980b..b4028da8 100644 --- a/src/vm_memory_monitor.erl +++ b/src/vm_memory_monitor.erl @@ -300,7 +300,7 @@ get_total_memory({unix, aix}) -> File = cmd("/usr/bin/vmstat -v"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line_aix/1, Lines)), - dict:fetch('memory pages', Dict * 4 * 1024); + dict:fetch('memory pages', Dict) * 4 * 1024; get_total_memory(_OsType) -> unknown. -- cgit v1.2.1 From 5ca0b62e4ac4d12cfbcd7083c5905b3e01d6bc9b Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 24 Sep 2010 14:10:50 +0100 Subject: Inline arithmetic --- src/vm_memory_monitor.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl index b4028da8..220df4db 100644 --- a/src/vm_memory_monitor.erl +++ b/src/vm_memory_monitor.erl @@ -300,7 +300,7 @@ get_total_memory({unix, aix}) -> File = cmd("/usr/bin/vmstat -v"), Lines = string:tokens(File, "\n"), Dict = dict:from_list(lists:map(fun parse_line_aix/1, Lines)), - dict:fetch('memory pages', Dict) * 4 * 1024; + dict:fetch('memory pages', Dict) * 4096; get_total_memory(_OsType) -> unknown. -- cgit v1.2.1 From cacf5b0182baa2fe8da789b7bebee918de9484c7 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Wed, 29 Sep 2010 10:04:55 +0100 Subject: delete queues concurrently Instead of deleting queues one at a time, queue_collector spawns a separate thread for each queue deletion. The downside is that a channel termination can result in a very large number of threads spawning. On the other hand, the process doesn't affect the broker significantly. After creating 10000 exclusive queues, closing the channel takes a while (about 2 mins on my computer), but the broker doesn't become unresponsive and MulticastMain continues to work at full speed. --- src/rabbit_queue_collector.erl | 31 ++++++++++++++++++++++++------- 1 file changed, 24 insertions(+), 7 deletions(-) diff --git a/src/rabbit_queue_collector.erl b/src/rabbit_queue_collector.erl index 0b8efc8f..c9b2cc10 100644 --- a/src/rabbit_queue_collector.erl +++ b/src/rabbit_queue_collector.erl @@ -77,13 +77,14 @@ handle_call({register, Q}, _From, State#state{queues = dict:store(MonitorRef, Q, Queues)}}; handle_call(delete_all, _From, State = #state{queues = Queues}) -> - [rabbit_misc:with_exit_handler( - fun () -> ok end, - fun () -> - erlang:demonitor(MonitorRef), - rabbit_amqqueue:delete_exclusive(Q) - end) - || {MonitorRef, Q} <- dict:to_list(Queues)], + Qs = dict:to_list(Queues), + [erlang:demonitor(MonitorRef) || {MonitorRef, _} <- Qs], + scatter(fun({_, Q}) -> + rabbit_misc:with_exit_handler( + fun () -> ok end, + fun () -> rabbit_amqqueue:delete_exclusive(Q) end) + end, delete_done, Qs), + gather(delete_done, dict:size(Queues)), {reply, ok, State}. handle_cast(Msg, State) -> @@ -98,3 +99,19 @@ terminate(_Reason, _State) -> code_change(_OldVsn, State, _Extra) -> {ok, State}. + +%%-------------------------------------------------------------------------- + +%% scatter(Fun, Tag, Xs): run Fun(X) for each X in Xs concurrently; +%% when a job finishes, send back Tag +scatter(Fun, Tag, Xs) -> + Self = self(), + [spawn(fun() -> Fun(X), + Self ! Tag + end) || X <- Xs]. + +%% gather(MsgAtom, N): gather N messages like MsgAtom +gather(_MsgAtom, 0) -> ok; +gather(MsgAtom, N) -> receive + MsgAtom -> gather(MsgAtom, N-1) + end. -- cgit v1.2.1 From 12705c3f9d894df9bbc94161e443dc61915113e8 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Sat, 2 Oct 2010 22:00:53 +0100 Subject: Implemented optimisation --- src/rabbit_msg_store.erl | 182 ++++++++++++++++++++++++++++++----------------- 1 file changed, 116 insertions(+), 66 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 7b715b80..aaad16a3 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -80,6 +80,7 @@ file_summary_ets, %% tid of the file summary table dedup_cache_ets, %% tid of dedup cache table cur_file_cache_ets, %% tid of current file cache table + dying_clients_ets, %% tid of the dying clients table client_refs, %% set of references of all registered clients successfully_recovered, %% boolean: did we recover state? file_size_limit %% how big are our files allowed to get? @@ -311,7 +312,7 @@ start_link(Server, Dir, ClientRefs, StartupFunState) -> write(Server, Guid, Msg, CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts }) -> ok = update_msg_cache(CurFileCacheEts, Guid, Msg), - {gen_server2:cast(Server, {write, Guid}), CState}. + {gen_server2:cast(Server, {write, Guid, self()}), CState}. read(Server, Guid, CState = #client_msstate { dedup_cache_ets = DedupCacheEts, @@ -341,7 +342,7 @@ read(Server, Guid, contains(Server, Guid) -> gen_server2:call(Server, {contains, Guid}, infinity). remove(_Server, []) -> ok; -remove(Server, Guids) -> gen_server2:cast(Server, {remove, Guids}). +remove(Server, Guids) -> gen_server2:cast(Server, {remove, Guids, self()}). release(_Server, []) -> ok; release(Server, Guids) -> gen_server2:cast(Server, {release, Guids}). sync(Server, Guids, K) -> gen_server2:cast(Server, {sync, Guids, K}). @@ -373,7 +374,8 @@ client_terminate(CState, Server) -> client_delete_and_terminate(CState, Server, Ref) -> close_all_handles(CState), - ok = gen_server2:cast(Server, {client_delete, Ref}). + ok = gen_server2:cast(Server, {client_dying, self()}), + ok = gen_server2:cast(Server, {client_delete, Ref, self()}). successfully_recovered_state(Server) -> gen_server2:call(Server, successfully_recovered_state, infinity). @@ -532,6 +534,8 @@ init([Server, BaseDir, ClientRefs, StartupFunState]) -> [ordered_set, public]), CurFileCacheEts = ets:new(rabbit_msg_store_cur_file, [set, public]), + DyingClientsEts = ets:new(rabbit_msg_store_terminal, [set]), + {ok, FileSizeLimit} = application:get_env(msg_store_file_size_limit), State = #msstate { dir = Dir, @@ -551,6 +555,7 @@ init([Server, BaseDir, ClientRefs, StartupFunState]) -> file_summary_ets = FileSummaryEts, dedup_cache_ets = DedupCacheEts, cur_file_cache_ets = CurFileCacheEts, + dying_clients_ets = DyingClientsEts, client_refs = ClientRefs1, successfully_recovered = CleanShutdown, file_size_limit = FileSizeLimit @@ -588,6 +593,7 @@ prioritise_cast(Msg, _State) -> sync -> 8; {gc_done, _Reclaimed, _Source, _Destination} -> 8; {set_maximum_since_use, _Age} -> 8; + {client_dying, _Pid} -> 7; _ -> 0 end. @@ -619,39 +625,48 @@ handle_call(successfully_recovered_state, _From, State) -> handle_call(client_terminate, _From, State) -> reply(ok, State). -handle_cast({write, Guid}, +handle_cast({write, Guid, ClientPid}, State = #msstate { sum_valid_data = SumValid, file_summary_ets = FileSummaryEts, cur_file_cache_ets = CurFileCacheEts }) -> true = 0 =< ets:update_counter(CurFileCacheEts, Guid, {3, -1}), [{Guid, Msg, _CacheRefCount}] = ets:lookup(CurFileCacheEts, Guid), - case index_lookup(Guid, State) of - not_found -> - write_message(Guid, Msg, State); - #msg_location { ref_count = 0, file = File, total_size = TotalSize } -> - [#file_summary { locked = Locked, - file_size = FileSize } = Summary] = - ets:lookup(FileSummaryEts, File), - case Locked of - true -> ok = index_delete(Guid, State), - write_message(Guid, Msg, State); - false -> ok = index_update_ref_count(Guid, 1, State), - ok = add_to_file_summary(Summary, TotalSize, FileSize, - State), - noreply(State #msstate { - sum_valid_data = SumValid + TotalSize }) - end; - #msg_location { ref_count = RefCount } -> - %% We already know about it, just update counter. Only - %% update field otherwise bad interaction with concurrent GC - ok = index_update_ref_count(Guid, RefCount + 1, State), - noreply(State) + case should_mask_action(ClientPid, Guid, State) of + true -> + noreply(State); + false -> + case index_lookup(Guid, State) of + not_found -> + write_message(Guid, Msg, State); + #msg_location { ref_count = 0, file = File, + total_size = TotalSize } -> + [#file_summary { locked = Locked, + file_size = FileSize } = Summary] = + ets:lookup(FileSummaryEts, File), + case Locked of + true -> ok = index_delete(Guid, State), + write_message(Guid, Msg, State); + false -> ok = index_update_ref_count(Guid, 1, State), + ok = add_to_file_summary(Summary, TotalSize, + FileSize, State), + noreply( + State #msstate { + sum_valid_data = SumValid + TotalSize }) + end; + #msg_location { ref_count = RefCount } -> + %% We already know about it, just update + %% counter. Only update field otherwise bad + %% interaction with concurrent GC + ok = index_update_ref_count(Guid, RefCount + 1, State), + noreply(State) + end end; -handle_cast({remove, Guids}, State) -> - State1 = lists:foldl( - fun (Guid, State2) -> remove_message(Guid, State2) end, - State, Guids), +handle_cast({remove, Guids, ClientPid}, State) -> + State1 = + lists:foldl( + fun (Guid, State2) -> remove_message(Guid, ClientPid, State2) end, + State, Guids), noreply(maybe_compact(State1)); handle_cast({release, Guids}, State = @@ -714,8 +729,16 @@ handle_cast({set_maximum_since_use, Age}, State) -> ok = file_handle_cache:set_maximum_since_use(Age), noreply(State); -handle_cast({client_delete, CRef}, - State = #msstate { client_refs = ClientRefs }) -> +handle_cast({client_dying, ClientPid}, + State = #msstate { dying_clients_ets = DyingClientsEts }) -> + Guid = rabbit_guid:guid(), + true = ets:insert_new(DyingClientsEts, {ClientPid, Guid}), + write_message(Guid, <<>>, State); + +handle_cast({client_delete, CRef, ClientPid}, + State = #msstate { client_refs = ClientRefs, + dying_clients_ets = DyingClientsEts }) -> + true = ets:delete(DyingClientsEts, ClientPid), noreply( State #msstate { client_refs = sets:del_element(CRef, ClientRefs) }). @@ -733,6 +756,7 @@ terminate(_Reason, State = #msstate { index_state = IndexState, file_summary_ets = FileSummaryEts, dedup_cache_ets = DedupCacheEts, cur_file_cache_ets = CurFileCacheEts, + dying_clients_ets = DyingClientsEts, client_refs = ClientRefs, dir = Dir }) -> %% stop the gc first, otherwise it could be working and we pull @@ -746,8 +770,8 @@ terminate(_Reason, State = #msstate { index_state = IndexState, end, State3 = close_all_handles(State1), store_file_summary(FileSummaryEts, Dir), - [ets:delete(T) || - T <- [FileSummaryEts, DedupCacheEts, FileHandlesEts, CurFileCacheEts]], + [ets:delete(T) || T <- [FileSummaryEts, DedupCacheEts, FileHandlesEts, + DyingClientsEts, CurFileCacheEts]], IndexModule:terminate(IndexState), store_recovery_terms([{client_refs, sets:to_list(ClientRefs)}, {index_module, IndexModule}], Dir), @@ -921,37 +945,46 @@ contains_message(Guid, From, State = #msstate { gc_active = GCActive }) -> end end. -remove_message(Guid, State = #msstate { sum_valid_data = SumValid, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts }) -> - #msg_location { ref_count = RefCount, file = File, - total_size = TotalSize } = - index_lookup_positive_ref_count(Guid, State), - %% only update field, otherwise bad interaction with concurrent GC - Dec = fun () -> index_update_ref_count(Guid, RefCount - 1, State) end, - case RefCount of - %% don't remove from CUR_FILE_CACHE_ETS_NAME here because - %% there may be further writes in the mailbox for the same - %% msg. - 1 -> ok = remove_cache_entry(DedupCacheEts, Guid), - [#file_summary { valid_total_size = ValidTotalSize, - locked = Locked }] = - ets:lookup(FileSummaryEts, File), - case Locked of - true -> add_to_pending_gc_completion({remove, Guid}, State); - false -> ok = Dec(), - true = ets:update_element( - FileSummaryEts, File, - [{#file_summary.valid_total_size, - ValidTotalSize - TotalSize}]), - delete_file_if_empty( - File, - State #msstate { - sum_valid_data = SumValid - TotalSize }) - end; - _ -> ok = decrement_cache(DedupCacheEts, Guid), - ok = Dec(), - State +remove_message(Guid, ClientPid, + State = #msstate { sum_valid_data = SumValid, + file_summary_ets = FileSummaryEts, + dedup_cache_ets = DedupCacheEts }) -> + case should_mask_action(ClientPid, Guid, State) of + true -> + State; + false -> + #msg_location { ref_count = RefCount, file = File, + total_size = TotalSize } = + index_lookup_positive_ref_count(Guid, State), + %% only update field, otherwise bad interaction with + %% concurrent GC + Dec = + fun () -> index_update_ref_count(Guid, RefCount - 1, State) end, + case RefCount of + %% don't remove from CUR_FILE_CACHE_ETS_NAME here + %% because there may be further writes in the mailbox + %% for the same msg. + 1 -> ok = remove_cache_entry(DedupCacheEts, Guid), + [#file_summary { valid_total_size = ValidTotalSize, + locked = Locked }] = + ets:lookup(FileSummaryEts, File), + case Locked of + true -> add_to_pending_gc_completion( + {remove, Guid, ClientPid}, State); + false -> ok = Dec(), + true = ets:update_element( + FileSummaryEts, File, + [{#file_summary.valid_total_size, + ValidTotalSize - TotalSize}]), + delete_file_if_empty( + File, + State #msstate { + sum_valid_data = SumValid - TotalSize }) + end; + _ -> ok = decrement_cache(DedupCacheEts, Guid), + ok = Dec(), + State + end end. add_to_pending_gc_completion( @@ -968,8 +1001,8 @@ run_pending({read, Guid, From}, State) -> read_message(Guid, From, State); run_pending({contains, Guid, From}, State) -> contains_message(Guid, From, State); -run_pending({remove, Guid}, State) -> - remove_message(Guid, State). +run_pending({remove, Guid, ClientPid}, State) -> + remove_message(Guid, ClientPid, State). safe_ets_update_counter(Tab, Key, UpdateOp, SuccessFun, FailThunk) -> try @@ -980,6 +1013,23 @@ safe_ets_update_counter(Tab, Key, UpdateOp, SuccessFun, FailThunk) -> safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> safe_ets_update_counter(Tab, Key, UpdateOp, fun (_) -> ok end, FailThunk). +should_mask_action(ClientPid, Guid, + State = #msstate { dying_clients_ets = DyingClientsEts }) -> + case ets:lookup(DyingClientsEts, ClientPid) of + [] -> false; + [{_ClientPid, DeathGuid}] -> preceeds(DeathGuid, Guid, State) + end. + +preceeds(GuidA, GuidB, State) -> + #msg_location { file = FileA, offset = OffsetA } = + index_lookup_positive_ref_count(GuidA, State), + case index_lookup_positive_ref_count(GuidB, State) of + #msg_location { file = FileB, offset = OffsetB } -> + {FileA, OffsetA} < {FileB, OffsetB}; + not_found -> + true + end. + %%---------------------------------------------------------------------------- %% file helper functions %%---------------------------------------------------------------------------- -- cgit v1.2.1 From a4ce059c753d0e977e8819670cd7f2612d8c32b6 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Sun, 3 Oct 2010 09:53:00 +0100 Subject: Delete the death message when the client's done --- src/rabbit_msg_store.erl | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index aaad16a3..0438cd9d 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -738,9 +738,12 @@ handle_cast({client_dying, ClientPid}, handle_cast({client_delete, CRef, ClientPid}, State = #msstate { client_refs = ClientRefs, dying_clients_ets = DyingClientsEts }) -> + [{_ClientPid, DeathGuid}] = ets:lookup(DyingClientsEts, ClientPid), true = ets:delete(DyingClientsEts, ClientPid), noreply( - State #msstate { client_refs = sets:del_element(CRef, ClientRefs) }). + remove_message( + DeathGuid, ClientPid, + State #msstate { client_refs = sets:del_element(CRef, ClientRefs) })). handle_info(timeout, State) -> noreply(internal_sync(State)); -- cgit v1.2.1 From 378de0ecf48d02c34fdd6c3d34a125eefd7f311f Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Sun, 3 Oct 2010 17:55:38 +0100 Subject: Well it now doesn't crash, however, it seems to leak messages --- src/rabbit_msg_store.erl | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 0438cd9d..5be2eb36 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1023,10 +1023,11 @@ should_mask_action(ClientPid, Guid, [{_ClientPid, DeathGuid}] -> preceeds(DeathGuid, Guid, State) end. +%% lhs must exist, and must have refcount =:= 1 preceeds(GuidA, GuidB, State) -> - #msg_location { file = FileA, offset = OffsetA } = - index_lookup_positive_ref_count(GuidA, State), - case index_lookup_positive_ref_count(GuidB, State) of + #msg_location { file = FileA, offset = OffsetA, ref_count = 1 } = + index_lookup(GuidA, State), + case index_lookup(GuidB, State) of #msg_location { file = FileB, offset = OffsetB } -> {FileA, OffsetA} < {FileB, OffsetB}; not_found -> -- cgit v1.2.1 From f97030c7d5d96d43a95544eee947310b222bc1c0 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Sun, 3 Oct 2010 19:38:23 +0100 Subject: Ensure we cope properly with ref_counts of 0 on writes and removes in light of the action mask --- src/rabbit_msg_store.erl | 101 ++++++++++++++++++++++++++--------------------- src/rabbit_tests.erl | 4 +- 2 files changed, 58 insertions(+), 47 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 5be2eb36..0dd844d7 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -632,34 +632,33 @@ handle_cast({write, Guid, ClientPid}, true = 0 =< ets:update_counter(CurFileCacheEts, Guid, {3, -1}), [{Guid, Msg, _CacheRefCount}] = ets:lookup(CurFileCacheEts, Guid), case should_mask_action(ClientPid, Guid, State) of - true -> + {true, _Location} -> noreply(State); - false -> - case index_lookup(Guid, State) of - not_found -> + {false, not_found} -> + write_message(Guid, Msg, State); + {Mask, #msg_location { ref_count = 0, file = File, + total_size = TotalSize }} -> + [#file_summary { locked = Locked, file_size = FileSize } = + Summary] = ets:lookup(FileSummaryEts, File), + case {Mask, Locked} of + {false, true} -> + ok = index_delete(Guid, State), write_message(Guid, Msg, State); - #msg_location { ref_count = 0, file = File, - total_size = TotalSize } -> - [#file_summary { locked = Locked, - file_size = FileSize } = Summary] = - ets:lookup(FileSummaryEts, File), - case Locked of - true -> ok = index_delete(Guid, State), - write_message(Guid, Msg, State); - false -> ok = index_update_ref_count(Guid, 1, State), - ok = add_to_file_summary(Summary, TotalSize, - FileSize, State), - noreply( - State #msstate { - sum_valid_data = SumValid + TotalSize }) - end; - #msg_location { ref_count = RefCount } -> - %% We already know about it, just update - %% counter. Only update field otherwise bad - %% interaction with concurrent GC - ok = index_update_ref_count(Guid, RefCount + 1, State), - noreply(State) - end + {false_if_increment, true} -> + noreply(State); + {_Mask, false} -> + ok = index_update_ref_count(Guid, 1, State), + ok = add_to_file_summary(Summary, TotalSize, + FileSize, State), + noreply( + State #msstate { sum_valid_data = SumValid + TotalSize }) + end; + {_Mask, #msg_location { ref_count = RefCount }} -> + %% We already know about it, just update counter. Only + %% update field otherwise bad interaction with concurrent + %% GC + ok = index_update_ref_count(Guid, RefCount + 1, State), + noreply(State) end; handle_cast({remove, Guids, ClientPid}, State) -> @@ -953,12 +952,16 @@ remove_message(Guid, ClientPid, file_summary_ets = FileSummaryEts, dedup_cache_ets = DedupCacheEts }) -> case should_mask_action(ClientPid, Guid, State) of - true -> + {true, _Location} -> + State; + {false_if_increment, #msg_location { ref_count = 0 }} -> + %% ClientPid has tried to both write and remove this msg + %% whilst it's being GC'd. ASSERTION: + %% [#file_summary { locked = true }] = + %% ets:lookup(FileSummaryEts, File), State; - false -> - #msg_location { ref_count = RefCount, file = File, - total_size = TotalSize } = - index_lookup_positive_ref_count(Guid, State), + {_Mask, #msg_location { ref_count = RefCount, file = File, + total_size = TotalSize }} when RefCount > 0 -> %% only update field, otherwise bad interaction with %% concurrent GC Dec = @@ -1018,21 +1021,27 @@ safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> should_mask_action(ClientPid, Guid, State = #msstate { dying_clients_ets = DyingClientsEts }) -> - case ets:lookup(DyingClientsEts, ClientPid) of - [] -> false; - [{_ClientPid, DeathGuid}] -> preceeds(DeathGuid, Guid, State) - end. - -%% lhs must exist, and must have refcount =:= 1 -preceeds(GuidA, GuidB, State) -> - #msg_location { file = FileA, offset = OffsetA, ref_count = 1 } = - index_lookup(GuidA, State), - case index_lookup(GuidB, State) of - #msg_location { file = FileB, offset = OffsetB } -> - {FileA, OffsetA} < {FileB, OffsetB}; - not_found -> - true - end. + Location = index_lookup(Guid, State), + {case ets:lookup(DyingClientsEts, ClientPid) of + [] -> + false; + [{_ClientPid, DeathGuid}] -> + case Location of + not_found -> + true; + #msg_location { file = FileB, offset = OffsetB, + ref_count = RefCount } -> + #msg_location { file = FileA, offset = OffsetA } = + index_lookup(DeathGuid, State), + case {FileA, OffsetA} < {FileB, OffsetB} of + true -> true; + false -> case RefCount of + 0 -> false_if_increment; + _ -> false + end + end + end + end, Location}. %%---------------------------------------------------------------------------- %% file helper functions diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index b36ee0be..476ea222 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1633,7 +1633,7 @@ queue_index_publish(SeqIds, Persistent, Qi) -> true -> ?PERSISTENT_MSG_STORE; false -> ?TRANSIENT_MSG_STORE end, - {A, B, MSCStateEnd} = + {A, B = [{_SeqId, LastGuidWritten} | _], MSCStateEnd} = lists:foldl( fun (SeqId, {QiN, SeqIdsGuidsAcc, MSCStateN}) -> Guid = rabbit_guid:guid(), @@ -1643,6 +1643,8 @@ queue_index_publish(SeqIds, Persistent, Qi) -> Guid, MSCStateN), {QiM, [{SeqId, Guid} | SeqIdsGuidsAcc], MSCStateM} end, {Qi, [], rabbit_msg_store:client_init(MsgStore, Ref)}, SeqIds), + %% do this just to force all of the publishes through to the msg_store: + true = rabbit_msg_store:contains(MsgStore, LastGuidWritten), ok = rabbit_msg_store:client_delete_and_terminate( MSCStateEnd, MsgStore, Ref), {A, B}. -- cgit v1.2.1 From e3de2ceb718019dd2bceac47969d8091aa82614a Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 7 Oct 2010 13:52:53 +0100 Subject: Further comments, reformating to minimise diff with default, and variable renaming to improve readability --- src/rabbit_msg_store.erl | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index e4aad809..5e222da3 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -654,13 +654,12 @@ handle_cast({write, Guid, ClientPid}, [_] = ets:update_counter( FileSummaryEts, File, [{#file_summary.valid_total_size, TotalSize}]), - noreply( - State #msstate { sum_valid_data = SumValid + TotalSize }) + noreply(State #msstate { + sum_valid_data = SumValid + TotalSize }) end; {_Mask, #msg_location { ref_count = RefCount }} -> %% We already know about it, just update counter. Only - %% update field otherwise bad interaction with concurrent - %% GC + %% update field otherwise bad interaction with concurrent GC ok = index_update_ref_count(Guid, RefCount + 1, State), noreply(State) end; @@ -1014,7 +1013,9 @@ safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> %% msg (if there is one). If the msg is older than the client death %% msg, and it has a 0 ref_count we must only alter the ref_count it, %% not rewrite the msg - rewriting it would make it younger than the -%% death msg and thus should be ignored. +%% death msg and thus should be ignored. Note that this will +%% (correctly) return false when testing to remove the death msg +%% itself. should_mask_action(ClientPid, Guid, State = #msstate { dying_clients_ets = DyingClientsEts }) -> Location = index_lookup(Guid, State), @@ -1025,11 +1026,11 @@ should_mask_action(ClientPid, Guid, case Location of not_found -> true; - #msg_location { file = FileB, offset = OffsetB, + #msg_location { file = File, offset = Offset, ref_count = RefCount } -> - #msg_location { file = FileA, offset = OffsetA } = + #msg_location { file = DeathFile, offset = DeathOffset } = index_lookup(DeathGuid, State), - case {FileA, OffsetA} < {FileB, OffsetB} of + case {DeathFile, DeathOffset} < {File, Offset} of true -> true; false -> case RefCount of 0 -> false_if_increment; -- cgit v1.2.1 From 179199e0cbb1e7e523040c3d99c17847fc1994c5 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 11 Oct 2010 17:15:49 +0100 Subject: Push the client ref into the client-side msg_store state --- src/rabbit_msg_store.erl | 20 ++++++++++++-------- src/rabbit_tests.erl | 37 ++++++++++++++++++------------------ src/rabbit_variable_queue.erl | 44 ++++++++++++++++++++----------------------- 3 files changed, 50 insertions(+), 51 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 5e222da3..1567606f 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -35,7 +35,7 @@ -export([start_link/4, write/4, read/3, contains/2, remove/2, release/2, sync/3, client_init/2, client_terminate/2, - client_delete_and_terminate/3, successfully_recovered_state/1]). + client_delete_and_terminate/2, successfully_recovered_state/1]). -export([sync/1, gc_done/4, set_maximum_since_use/2, gc/3]). %% internal @@ -87,7 +87,8 @@ }). -record(client_msstate, - { file_handle_cache, + { ref, + file_handle_cache, index_state, index_module, dir, @@ -108,6 +109,7 @@ -type(server() :: pid() | atom()). -type(file_num() :: non_neg_integer()). -type(client_msstate() :: #client_msstate { + ref :: binary(), file_handle_cache :: dict:dictionary(), index_state :: any(), index_module :: atom(), @@ -136,9 +138,9 @@ 'ok'). -spec(set_maximum_since_use/2 :: (server(), non_neg_integer()) -> 'ok'). -spec(client_init/2 :: (server(), binary()) -> client_msstate()). --spec(client_terminate/2 :: (client_msstate(), server()) -> 'ok'). --spec(client_delete_and_terminate/3 :: - (client_msstate(), server(), binary()) -> 'ok'). +-spec(client_terminate/2 :: (client_msstate(), server()) -> binary()). +-spec(client_delete_and_terminate/2 :: + (client_msstate(), server()) -> 'ok'). -spec(successfully_recovered_state/1 :: (server()) -> boolean()). -spec(gc/3 :: (non_neg_integer(), non_neg_integer(), @@ -358,7 +360,8 @@ client_init(Server, Ref) -> {IState, IModule, Dir, GCPid, FileHandlesEts, FileSummaryEts, DedupCacheEts, CurFileCacheEts} = gen_server2:call(Server, {new_client_state, Ref}, infinity), - #client_msstate { file_handle_cache = dict:new(), + #client_msstate { ref = Ref, + file_handle_cache = dict:new(), index_state = IState, index_module = IModule, dir = Dir, @@ -370,9 +373,10 @@ client_init(Server, Ref) -> client_terminate(CState, Server) -> close_all_handles(CState), - ok = gen_server2:call(Server, client_terminate, infinity). + ok = gen_server2:call(Server, client_terminate, infinity), + CState #client_msstate.ref. -client_delete_and_terminate(CState, Server, Ref) -> +client_delete_and_terminate(CState = #client_msstate { ref = Ref }, Server) -> close_all_handles(CState), ok = gen_server2:cast(Server, {client_dying, self()}), ok = gen_server2:cast(Server, {client_delete, Ref, self()}). diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 476ea222..bf0bd992 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1532,7 +1532,7 @@ test_msg_store() -> ok = rabbit_msg_store:release(?PERSISTENT_MSG_STORE, Guids2ndHalf), %% read the second half again, just for fun (aka code coverage) MSCState7 = msg_store_read(Guids2ndHalf, MSCState6), - ok = rabbit_msg_store:client_terminate(MSCState7, ?PERSISTENT_MSG_STORE), + Ref = rabbit_msg_store:client_terminate(MSCState7, ?PERSISTENT_MSG_STORE), %% stop and restart, preserving every other msg in 2nd half ok = rabbit_variable_queue:stop_msg_store(), ok = rabbit_variable_queue:start_msg_store( @@ -1556,8 +1556,8 @@ test_msg_store() -> MSCState8 = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, Ref), {ok, MSCState9} = msg_store_write(Guids1stHalf, MSCState8), %% this should force some sort of sync internally otherwise misread - ok = rabbit_msg_store:client_terminate( - msg_store_read(Guids1stHalf, MSCState9), ?PERSISTENT_MSG_STORE), + Ref = rabbit_msg_store:client_terminate( + msg_store_read(Guids1stHalf, MSCState9), ?PERSISTENT_MSG_STORE), ok = rabbit_msg_store:remove(?PERSISTENT_MSG_STORE, Guids1stHalf), %% restart empty restart_msg_store_empty(), %% now safe to reuse guids @@ -1567,21 +1567,21 @@ test_msg_store() -> BigCount = trunc(100 * FileSize / (PayloadSizeBits div 8)), GuidsBig = [guid_bin(X) || X <- lists:seq(1, BigCount)], Payload = << 0:PayloadSizeBits >>, - ok = foreach_with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (Guid, MsgStore, MSCStateM) -> - {ok, MSCStateN} = rabbit_msg_store:write( - MsgStore, Guid, Payload, MSCStateM), - MSCStateN - end, GuidsBig), + Ref = foreach_with_msg_store_client( + ?PERSISTENT_MSG_STORE, Ref, + fun (Guid, MsgStore, MSCStateM) -> + {ok, MSCStateN} = rabbit_msg_store:write( + MsgStore, Guid, Payload, MSCStateM), + MSCStateN + end, GuidsBig), %% now read them to ensure we hit the fast client-side reading - ok = foreach_with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (Guid, MsgStore, MSCStateM) -> - {{ok, Payload}, MSCStateN} = rabbit_msg_store:read( - MsgStore, Guid, MSCStateM), - MSCStateN - end, GuidsBig), + Ref = foreach_with_msg_store_client( + ?PERSISTENT_MSG_STORE, Ref, + fun (Guid, MsgStore, MSCStateM) -> + {{ok, Payload}, MSCStateN} = rabbit_msg_store:read( + MsgStore, Guid, MSCStateM), + MSCStateN + end, GuidsBig), %% .., then 3s by 1... ok = msg_store_remove([guid_bin(X) || X <- lists:seq(BigCount, 1, -3)]), %% .., then remove 3s by 2, from the young end first. This hits @@ -1645,8 +1645,7 @@ queue_index_publish(SeqIds, Persistent, Qi) -> end, {Qi, [], rabbit_msg_store:client_init(MsgStore, Ref)}, SeqIds), %% do this just to force all of the publishes through to the msg_store: true = rabbit_msg_store:contains(MsgStore, LastGuidWritten), - ok = rabbit_msg_store:client_delete_and_terminate( - MSCStateEnd, MsgStore, Ref), + ok = rabbit_msg_store:client_delete_and_terminate(MSCStateEnd, MsgStore), {A, B}. verify_read_with_published(_Delivered, _Persistent, [], _) -> diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index cbc71bcc..8846b32a 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -306,8 +306,7 @@ next_seq_id :: seq_id(), pending_ack :: dict:dictionary(), index_state :: any(), - msg_store_clients :: 'undefined' | {{any(), binary()}, - {any(), binary()}}, + msg_store_clients :: 'undefined' | {any(), any()}, on_sync :: sync(), durable :: boolean(), @@ -398,7 +397,7 @@ init(QueueName, IsDurable, Recover) -> true -> rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, PRef); false -> undefined end, - TransientClient = rabbit_msg_store:client_init(?TRANSIENT_MSG_STORE, TRef), + TransientClient = rabbit_msg_store:client_init(?TRANSIENT_MSG_STORE, TRef), State = #vqstate { q1 = queue:new(), q2 = bpqueue:new(), @@ -408,8 +407,7 @@ init(QueueName, IsDurable, Recover) -> next_seq_id = NextSeqId, pending_ack = dict:new(), index_state = IndexState1, - msg_store_clients = {{PersistentClient, PRef}, - {TransientClient, TRef}}, + msg_store_clients = {PersistentClient, TransientClient}, on_sync = ?BLANK_SYNC, durable = IsDurable, transient_threshold = NextSeqId, @@ -434,18 +432,17 @@ init(QueueName, IsDurable, Recover) -> terminate(State) -> State1 = #vqstate { persistent_count = PCount, index_state = IndexState, - msg_store_clients = {{MSCStateP, PRef}, - {MSCStateT, TRef}} } = + msg_store_clients = {MSCStateP, MSCStateT} } = remove_pending_ack(true, tx_commit_index(State)), - case MSCStateP of - undefined -> ok; - _ -> rabbit_msg_store:client_terminate( - MSCStateP, ?PERSISTENT_MSG_STORE) - end, - rabbit_msg_store:client_terminate(MSCStateT, ?TRANSIENT_MSG_STORE), - Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}, - {persistent_count, PCount}], + PersistentEntries = + case MSCStateP of + undefined -> []; + _ -> [{persistent_ref, rabbit_msg_store:client_terminate( + MSCStateP, ?PERSISTENT_MSG_STORE)}] + end, + TRef = rabbit_msg_store:client_terminate(MSCStateT, ?TRANSIENT_MSG_STORE), + Terms = [{transient_ref, TRef}, + {persistent_count, PCount} | PersistentEntries], a(State1 #vqstate { index_state = rabbit_queue_index:terminate( Terms, IndexState), msg_store_clients = undefined }). @@ -458,17 +455,16 @@ delete_and_terminate(State) -> %% deleting it. {_PurgeCount, State1} = purge(State), State2 = #vqstate { index_state = IndexState, - msg_store_clients = {{MSCStateP, PRef}, - {MSCStateT, TRef}} } = + msg_store_clients = {MSCStateP, MSCStateT} } = remove_pending_ack(false, State1), IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), case MSCStateP of undefined -> ok; _ -> rabbit_msg_store:client_delete_and_terminate( - MSCStateP, ?PERSISTENT_MSG_STORE, PRef) + MSCStateP, ?PERSISTENT_MSG_STORE) end, rabbit_msg_store:client_delete_and_terminate( - MSCStateT, ?TRANSIENT_MSG_STORE, TRef), + MSCStateT, ?TRANSIENT_MSG_STORE), a(State2 #vqstate { index_state = IndexState1, msg_store_clients = undefined }). @@ -798,12 +794,12 @@ msg_status(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }) -> find_msg_store(true) -> ?PERSISTENT_MSG_STORE; find_msg_store(false) -> ?TRANSIENT_MSG_STORE. -with_msg_store_state({{MSCStateP, PRef}, MSCStateT}, true, Fun) -> +with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> {Result, MSCStateP1} = Fun(?PERSISTENT_MSG_STORE, MSCStateP), - {Result, {{MSCStateP1, PRef}, MSCStateT}}; -with_msg_store_state({MSCStateP, {MSCStateT, TRef}}, false, Fun) -> + {Result, {MSCStateP1, MSCStateT}}; +with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> {Result, MSCStateT1} = Fun(?TRANSIENT_MSG_STORE, MSCStateT), - {Result, {MSCStateP, {MSCStateT1, TRef}}}. + {Result, {MSCStateP, MSCStateT1}}. read_from_msg_store(MSCState, IsPersistent, Guid) -> with_msg_store_state( -- cgit v1.2.1 From 1a638ccf9e2f7e16bb1145db63598446611afada Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 3 Nov 2010 15:38:42 +0000 Subject: rabbit_exchange_type_registry -> rabbit_registry --- src/rabbit.erl | 6 +- src/rabbit_binding.erl | 2 +- src/rabbit_exchange.erl | 6 +- src/rabbit_exchange_type_direct.erl | 6 +- src/rabbit_exchange_type_fanout.erl | 6 +- src/rabbit_exchange_type_headers.erl | 6 +- src/rabbit_exchange_type_registry.erl | 131 ---------------------------------- src/rabbit_exchange_type_topic.erl | 6 +- src/rabbit_registry.erl | 131 ++++++++++++++++++++++++++++++++++ 9 files changed, 150 insertions(+), 150 deletions(-) delete mode 100644 src/rabbit_exchange_type_registry.erl create mode 100644 src/rabbit_registry.erl diff --git a/src/rabbit.erl b/src/rabbit.erl index 8c36a9f0..04c23b5a 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -69,10 +69,10 @@ -rabbit_boot_step({external_infrastructure, [{description, "external infrastructure ready"}]}). --rabbit_boot_step({rabbit_exchange_type_registry, - [{description, "exchange type registry"}, +-rabbit_boot_step({rabbit_registry, + [{description, "plugin registry"}, {mfa, {rabbit_sup, start_child, - [rabbit_exchange_type_registry]}}, + [rabbit_registry]}}, {requires, external_infrastructure}, {enables, kernel_ready}]}). diff --git a/src/rabbit_binding.erl b/src/rabbit_binding.erl index 1af213c4..9993da74 100644 --- a/src/rabbit_binding.erl +++ b/src/rabbit_binding.erl @@ -305,7 +305,7 @@ table_for_resource(#resource{kind = queue}) -> rabbit_queue. %% Used with atoms from records; e.g., the type is expected to exist. type_to_module(T) -> - {ok, Module} = rabbit_exchange_type_registry:lookup_module(T), + {ok, Module} = rabbit_registry:lookup_module(exchange, T), Module. contains(Table, MatchHead) -> diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 46564233..7ec67715 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -150,17 +150,17 @@ declare(XName, Type, Durable, AutoDelete, Args) -> %% Used with atoms from records; e.g., the type is expected to exist. type_to_module(T) -> - {ok, Module} = rabbit_exchange_type_registry:lookup_module(T), + {ok, Module} = rabbit_registry:lookup_module(exchange, T), Module. %% Used with binaries sent over the wire; the type may not exist. check_type(TypeBin) -> - case rabbit_exchange_type_registry:binary_to_type(TypeBin) of + case rabbit_registry:binary_to_type(TypeBin) of {error, not_found} -> rabbit_misc:protocol_error( command_invalid, "unknown exchange type '~s'", [TypeBin]); T -> - case rabbit_exchange_type_registry:lookup_module(T) of + case rabbit_registry:lookup_module(exchange, T) of {error, not_found} -> rabbit_misc:protocol_error( command_invalid, "invalid exchange type '~s'", [T]); diff --git a/src/rabbit_exchange_type_direct.erl b/src/rabbit_exchange_type_direct.erl index d934a497..d49d0199 100644 --- a/src/rabbit_exchange_type_direct.erl +++ b/src/rabbit_exchange_type_direct.erl @@ -41,9 +41,9 @@ -rabbit_boot_step({?MODULE, [{description, "exchange type direct"}, - {mfa, {rabbit_exchange_type_registry, register, - [<<"direct">>, ?MODULE]}}, - {requires, rabbit_exchange_type_registry}, + {mfa, {rabbit_registry, register, + [exchange, <<"direct">>, ?MODULE]}}, + {requires, rabbit_registry}, {enables, kernel_ready}]}). description() -> diff --git a/src/rabbit_exchange_type_fanout.erl b/src/rabbit_exchange_type_fanout.erl index 77ca9686..e7f75464 100644 --- a/src/rabbit_exchange_type_fanout.erl +++ b/src/rabbit_exchange_type_fanout.erl @@ -41,9 +41,9 @@ -rabbit_boot_step({?MODULE, [{description, "exchange type fanout"}, - {mfa, {rabbit_exchange_type_registry, register, - [<<"fanout">>, ?MODULE]}}, - {requires, rabbit_exchange_type_registry}, + {mfa, {rabbit_registry, register, + [exchange, <<"fanout">>, ?MODULE]}}, + {requires, rabbit_registry}, {enables, kernel_ready}]}). description() -> diff --git a/src/rabbit_exchange_type_headers.erl b/src/rabbit_exchange_type_headers.erl index ec9e7ba4..caf141fe 100644 --- a/src/rabbit_exchange_type_headers.erl +++ b/src/rabbit_exchange_type_headers.erl @@ -42,9 +42,9 @@ -rabbit_boot_step({?MODULE, [{description, "exchange type headers"}, - {mfa, {rabbit_exchange_type_registry, register, - [<<"headers">>, ?MODULE]}}, - {requires, rabbit_exchange_type_registry}, + {mfa, {rabbit_registry, register, + [exchange, <<"headers">>, ?MODULE]}}, + {requires, rabbit_registry}, {enables, kernel_ready}]}). -ifdef(use_specs). diff --git a/src/rabbit_exchange_type_registry.erl b/src/rabbit_exchange_type_registry.erl deleted file mode 100644 index f15275b5..00000000 --- a/src/rabbit_exchange_type_registry.erl +++ /dev/null @@ -1,131 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_registry). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --export([register/2, binary_to_type/1, lookup_module/1]). - --define(SERVER, ?MODULE). --define(ETS_NAME, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/2 :: (binary(), atom()) -> 'ok'). --spec(binary_to_type/1 :: - (binary()) -> atom() | rabbit_types:error('not_found')). --spec(lookup_module/1 :: - (atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). - --endif. - -%%--------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -register(TypeName, ModuleName) -> - gen_server:call(?SERVER, {register, TypeName, ModuleName}). - -%% This is used with user-supplied arguments (e.g., on exchange -%% declare), so we restrict it to existing atoms only. This means it -%% can throw a badarg, indicating that the type cannot have been -%% registered. -binary_to_type(TypeBin) when is_binary(TypeBin) -> - case catch list_to_existing_atom(binary_to_list(TypeBin)) of - {'EXIT', {badarg, _}} -> {error, not_found}; - TypeAtom -> TypeAtom - end. - -lookup_module(T) when is_atom(T) -> - case ets:lookup(?ETS_NAME, T) of - [{_, Module}] -> - {ok, Module}; - [] -> - {error, not_found} - end. - -%%--------------------------------------------------------------------------- - -internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> - list_to_atom(binary_to_list(TypeBin)). - -internal_register(TypeName, ModuleName) - when is_binary(TypeName), is_atom(ModuleName) -> - ok = sanity_check_module(ModuleName), - true = ets:insert(?ETS_NAME, - {internal_binary_to_type(TypeName), ModuleName}), - ok. - -sanity_check_module(Module) -> - case catch lists:member(rabbit_exchange_type, - lists:flatten( - [Bs || {Attr, Bs} <- - Module:module_info(attributes), - Attr =:= behavior orelse - Attr =:= behaviour])) of - {'EXIT', {undef, _}} -> {error, not_module}; - false -> {error, not_exchange_type}; - true -> ok - end. - -%%--------------------------------------------------------------------------- - -init([]) -> - ?ETS_NAME = ets:new(?ETS_NAME, [protected, set, named_table]), - {ok, none}. - -handle_call({register, TypeName, ModuleName}, _From, State) -> - ok = internal_register(TypeName, ModuleName), - {reply, ok, State}; -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_exchange_type_topic.erl b/src/rabbit_exchange_type_topic.erl index d3ecdd4d..44851858 100644 --- a/src/rabbit_exchange_type_topic.erl +++ b/src/rabbit_exchange_type_topic.erl @@ -41,9 +41,9 @@ -rabbit_boot_step({?MODULE, [{description, "exchange type topic"}, - {mfa, {rabbit_exchange_type_registry, register, - [<<"topic">>, ?MODULE]}}, - {requires, rabbit_exchange_type_registry}, + {mfa, {rabbit_registry, register, + [exchange, <<"topic">>, ?MODULE]}}, + {requires, rabbit_registry}, {enables, kernel_ready}]}). -export([topic_matches/2]). diff --git a/src/rabbit_registry.erl b/src/rabbit_registry.erl new file mode 100644 index 00000000..227b64f1 --- /dev/null +++ b/src/rabbit_registry.erl @@ -0,0 +1,131 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_registry). + +-behaviour(gen_server). + +-export([start_link/0]). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, + code_change/3]). + +-export([register/3, binary_to_type/1, lookup_module/2]). + +-define(SERVER, ?MODULE). +-define(ETS_NAME, ?MODULE). + +-ifdef(use_specs). + +-spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). +-spec(register/3 :: (atom(), binary(), atom()) -> 'ok'). +-spec(binary_to_type/1 :: + (binary()) -> atom() | rabbit_types:error('not_found')). +-spec(lookup_module/2 :: + (atom(), atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). + +-endif. + +%%--------------------------------------------------------------------------- + +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + +%%--------------------------------------------------------------------------- + +register(Class, TypeName, ModuleName) -> + gen_server:call(?SERVER, {register, Class, TypeName, ModuleName}). + +%% This is used with user-supplied arguments (e.g., on exchange +%% declare), so we restrict it to existing atoms only. This means it +%% can throw a badarg, indicating that the type cannot have been +%% registered. +binary_to_type(TypeBin) when is_binary(TypeBin) -> + case catch list_to_existing_atom(binary_to_list(TypeBin)) of + {'EXIT', {badarg, _}} -> {error, not_found}; + TypeAtom -> TypeAtom + end. + +lookup_module(Class, T) when is_atom(T) -> + case ets:lookup(?ETS_NAME, {Class, T}) of + [{_, Module}] -> + {ok, Module}; + [] -> + {error, not_found} + end. + +%%--------------------------------------------------------------------------- + +internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> + list_to_atom(binary_to_list(TypeBin)). + +internal_register(Class, TypeName, ModuleName) + when is_atom(Class), is_binary(TypeName), is_atom(ModuleName) -> + ok = sanity_check_module(ModuleName), + true = ets:insert(?ETS_NAME, + {{Class, internal_binary_to_type(TypeName)}, ModuleName}), + ok. + +sanity_check_module(Module) -> + case catch lists:member(rabbit_exchange_type, + lists:flatten( + [Bs || {Attr, Bs} <- + Module:module_info(attributes), + Attr =:= behavior orelse + Attr =:= behaviour])) of + {'EXIT', {undef, _}} -> {error, not_module}; + false -> {error, not_exchange_type}; + true -> ok + end. + +%%--------------------------------------------------------------------------- + +init([]) -> + ?ETS_NAME = ets:new(?ETS_NAME, [protected, set, named_table]), + {ok, none}. + +handle_call({register, Class, TypeName, ModuleName}, _From, State) -> + ok = internal_register(Class, TypeName, ModuleName), + {reply, ok, State}; +handle_call(Request, _From, State) -> + {stop, {unhandled_call, Request}, State}. + +handle_cast(Request, State) -> + {stop, {unhandled_cast, Request}, State}. + +handle_info(Message, State) -> + {stop, {unhandled_info, Message}, State}. + +terminate(_Reason, _State) -> + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. -- cgit v1.2.1 From c3a18d901570324423da61e4466123ab76e55a92 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 3 Nov 2010 17:09:56 +0000 Subject: Move existing PLAIN and AMQPLAIN auth mechanisms into plugins. --- include/rabbit_auth_mechanism_spec.hrl | 35 ++++++++++++++ src/rabbit_access_control.erl | 85 ++++++++++++++++------------------ src/rabbit_auth_mechanism.erl | 53 +++++++++++++++++++++ src/rabbit_auth_mechanism_amqplain.erl | 73 +++++++++++++++++++++++++++++ src/rabbit_auth_mechanism_plain.erl | 64 +++++++++++++++++++++++++ src/rabbit_reader.erl | 11 +++-- src/rabbit_registry.erl | 17 +++++-- 7 files changed, 283 insertions(+), 55 deletions(-) create mode 100644 include/rabbit_auth_mechanism_spec.hrl create mode 100644 src/rabbit_auth_mechanism.erl create mode 100644 src/rabbit_auth_mechanism_amqplain.erl create mode 100644 src/rabbit_auth_mechanism_plain.erl diff --git a/include/rabbit_auth_mechanism_spec.hrl b/include/rabbit_auth_mechanism_spec.hrl new file mode 100644 index 00000000..f88bebb5 --- /dev/null +++ b/include/rabbit_auth_mechanism_spec.hrl @@ -0,0 +1,35 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% +-ifdef(use_specs). + +%% TODO + +-endif. diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl index 15897dfa..62653fbe 100644 --- a/src/rabbit_access_control.erl +++ b/src/rabbit_access_control.erl @@ -33,7 +33,7 @@ -include_lib("stdlib/include/qlc.hrl"). -include("rabbit.hrl"). --export([check_login/2, user_pass_login/2, check_user_pass_login/2, +-export([auth_mechanisms/1, check_login/2, check_user_pass_login/2, check_vhost_access/2, check_resource_access/3]). -export([add_user/2, delete_user/1, change_password/2, set_admin/1, clear_admin/1, list_users/0, lookup_user/1]). @@ -54,12 +54,10 @@ -type(password() :: binary()). -type(password_hash() :: binary()). -type(regexp() :: binary()). +-spec(auth_mechanisms/1 :: (rabbit_networking:socket()) -> binary()). -spec(check_login/2 :: (binary(), binary()) -> rabbit_types:user() | rabbit_types:channel_exit()). --spec(user_pass_login/2 :: - (username(), password()) - -> rabbit_types:user() | rabbit_types:channel_exit()). -spec(check_user_pass_login/2 :: (username(), password()) -> {'ok', rabbit_types:user()} | 'refused'). @@ -99,54 +97,51 @@ %%---------------------------------------------------------------------------- -%% SASL PLAIN, as used by the Qpid Java client and our clients. Also, -%% apparently, by OpenAMQ. -check_login(<<"PLAIN">>, Response) -> - [User, Pass] = [list_to_binary(T) || - T <- string:tokens(binary_to_list(Response), [0])], - user_pass_login(User, Pass); -%% AMQPLAIN, as used by Qpid Python test suite. The 0-8 spec actually -%% defines this as PLAIN, but in 0-9 that definition is gone, instead -%% referring generically to "SASL security mechanism", i.e. the above. -check_login(<<"AMQPLAIN">>, Response) -> - LoginTable = rabbit_binary_parser:parse_table(Response), - case {lists:keysearch(<<"LOGIN">>, 1, LoginTable), - lists:keysearch(<<"PASSWORD">>, 1, LoginTable)} of - {{value, {_, longstr, User}}, - {value, {_, longstr, Pass}}} -> - user_pass_login(User, Pass); - _ -> - %% Is this an information leak? +auth_mechanisms(Sock) -> + Mechanisms = + [atom_to_list(Name) + || {Name, Mechanism} <- rabbit_registry:lookup_all(auth_mechanism), + Mechanism:should_offer(Sock)], + list_to_binary(string:join(Mechanisms, " ")). + +check_login(MechanismBin, Response) -> + Mechanism = mechanism_to_module(MechanismBin), + State = Mechanism:init(), + case Mechanism:handle_response(Response, State) of + {refused, Username} -> rabbit_misc:protocol_error( - access_refused, - "AMQPPLAIN auth info ~w is missing LOGIN or PASSWORD field", - [LoginTable]) - end; - -check_login(Mechanism, _Response) -> - rabbit_misc:protocol_error( - access_refused, "unsupported authentication mechanism '~s'", - [Mechanism]). - -user_pass_login(User, Pass) -> - ?LOGDEBUG("Login with user ~p pass ~p~n", [User, Pass]), - case check_user_pass_login(User, Pass) of - refused -> + access_refused, "login refused for user '~s'", [Username]); + {protocol_error, Msg, Args} -> + rabbit_misc:protocol_error(access_refused, Msg, Args); + {ok, User} -> + User + end. + +mechanism_to_module(TypeBin) -> + case rabbit_registry:binary_to_type(TypeBin) of + {error, not_found} -> rabbit_misc:protocol_error( - access_refused, "login refused for user '~s'", [User]); - {ok, U} -> - U + command_invalid, "unknown authentication mechanism '~s'", + [TypeBin]); + T -> + case rabbit_registry:lookup_module(auth_mechanism, T) of + {error, not_found} -> rabbit_misc:protocol_error( + command_invalid, + "invalid authentication mechanism '~s'", + [T]); + {ok, Module} -> Module + end end. -check_user_pass_login(User, Pass) -> - case lookup_user(User) of - {ok, U} -> - case check_password(Pass, U#user.password_hash) of - true -> {ok, U}; +check_user_pass_login(Username, Pass) -> + case lookup_user(Username) of + {ok, User} -> + case check_password(Pass, User#user.password_hash) of + true -> {ok, User}; _ -> refused end; {error, not_found} -> - refused + {refused, Username} end. internal_lookup_vhost_access(Username, VHostPath) -> diff --git a/src/rabbit_auth_mechanism.erl b/src/rabbit_auth_mechanism.erl new file mode 100644 index 00000000..2e374320 --- /dev/null +++ b/src/rabbit_auth_mechanism.erl @@ -0,0 +1,53 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_auth_mechanism). + +-export([behaviour_info/1]). + +behaviour_info(callbacks) -> + [ + %% A description. Currently unused, may find its way into mgmt one day. + {description, 0}, + + %% If this mechanism is enabled, should it be offered for a given socket? + %% (primarily so EXTERNAL can be SSL-only) + {should_offer, 1}, + + %% Called before authentication starts. Should create a state + %% object to be passed through all the stages of authentication. + {init, 0}, + + %% Handle a stage of authentication + {handle_response, 2} + ]; +behaviour_info(_Other) -> + undefined. diff --git a/src/rabbit_auth_mechanism_amqplain.erl b/src/rabbit_auth_mechanism_amqplain.erl new file mode 100644 index 00000000..61f61e40 --- /dev/null +++ b/src/rabbit_auth_mechanism_amqplain.erl @@ -0,0 +1,73 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_auth_mechanism_amqplain). +-include("rabbit.hrl"). + +-behaviour(rabbit_auth_mechanism). + +-export([description/0, should_offer/1, init/0, handle_response/2]). + +-include("rabbit_auth_mechanism_spec.hrl"). + +-rabbit_boot_step({?MODULE, + [{description, "auth mechanism amqplain"}, + {mfa, {rabbit_registry, register, + [auth_mechanism, <<"AMQPLAIN">>, ?MODULE]}}, + {requires, rabbit_registry}, + {enables, kernel_ready}]}). + +%% AMQPLAIN, as used by Qpid Python test suite. The 0-8 spec actually +%% defines this as PLAIN, but in 0-9 that definition is gone, instead +%% referring generically to "SASL security mechanism", i.e. the above. + +description() -> + [{name, <<"AMQPLAIN">>}, + {description, <<"QPid AMQPLAIN mechanism">>}]. + +should_offer(_Sock) -> + true. + +init() -> + []. + +handle_response(Response, _State) -> + LoginTable = rabbit_binary_parser:parse_table(Response), + case {lists:keysearch(<<"LOGIN">>, 1, LoginTable), + lists:keysearch(<<"PASSWORD">>, 1, LoginTable)} of + {{value, {_, longstr, User}}, + {value, {_, longstr, Pass}}} -> + rabbit_access_control:check_user_pass_login(User, Pass); + _ -> + {protocol_error, + "AMQPLAIN auth info ~w is missing LOGIN or PASSWORD field", + [LoginTable]} + end. diff --git a/src/rabbit_auth_mechanism_plain.erl b/src/rabbit_auth_mechanism_plain.erl new file mode 100644 index 00000000..28aed92b --- /dev/null +++ b/src/rabbit_auth_mechanism_plain.erl @@ -0,0 +1,64 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_auth_mechanism_plain). +-include("rabbit.hrl"). + +-behaviour(rabbit_auth_mechanism). + +-export([description/0, should_offer/1, init/0, handle_response/2]). + +-include("rabbit_auth_mechanism_spec.hrl"). + +-rabbit_boot_step({?MODULE, + [{description, "auth mechanism plain"}, + {mfa, {rabbit_registry, register, + [auth_mechanism, <<"PLAIN">>, ?MODULE]}}, + {requires, rabbit_registry}, + {enables, kernel_ready}]}). + +%% SASL PLAIN, as used by the Qpid Java client and our clients. Also, +%% apparently, by OpenAMQ. + +description() -> + [{name, <<"PLAIN">>}, + {description, <<"SASL PLAIN authentication mechanism">>}]. + +should_offer(_Sock) -> + true. + +init() -> + []. + +handle_response(Response, _State) -> + [User, Pass] = [list_to_binary(T) || + T <- string:tokens(binary_to_list(Response), [0])], + rabbit_access_control:check_user_pass_login(User, Pass). diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 127467bb..748b537f 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -691,11 +691,12 @@ handle_input(Callback, Data, _State) -> start_connection({ProtocolMajor, ProtocolMinor, _ProtocolRevision}, Protocol, State = #v1{sock = Sock, connection = Connection}) -> - Start = #'connection.start'{ version_major = ProtocolMajor, - version_minor = ProtocolMinor, - server_properties = server_properties(), - mechanisms = <<"PLAIN AMQPLAIN">>, - locales = <<"en_US">> }, + Start = #'connection.start'{ + version_major = ProtocolMajor, + version_minor = ProtocolMinor, + server_properties = server_properties(), + mechanisms = rabbit_access_control:auth_mechanisms(Sock), + locales = <<"en_US">> }, ok = send_on_channel0(Sock, Start, Protocol), {State#v1{connection = Connection#connection{ timeout_sec = ?NORMAL_TIMEOUT, diff --git a/src/rabbit_registry.erl b/src/rabbit_registry.erl index 227b64f1..8d13f4e1 100644 --- a/src/rabbit_registry.erl +++ b/src/rabbit_registry.erl @@ -38,7 +38,7 @@ -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]). --export([register/3, binary_to_type/1, lookup_module/2]). +-export([register/3, binary_to_type/1, lookup_module/2, lookup_all/1]). -define(SERVER, ?MODULE). -define(ETS_NAME, ?MODULE). @@ -51,6 +51,7 @@ (binary()) -> atom() | rabbit_types:error('not_found')). -spec(lookup_module/2 :: (atom(), atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). +-spec(lookup_all/1 :: (atom()) -> [atom()]). -endif. @@ -82,6 +83,9 @@ lookup_module(Class, T) when is_atom(T) -> {error, not_found} end. +lookup_all(Class) -> + [{K, V} || [K, V] <- ets:match(?ETS_NAME, {{Class, '$1'}, '$2'})]. + %%--------------------------------------------------------------------------- internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> @@ -89,23 +93,26 @@ internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> internal_register(Class, TypeName, ModuleName) when is_atom(Class), is_binary(TypeName), is_atom(ModuleName) -> - ok = sanity_check_module(ModuleName), + ok = sanity_check_module(class_module(Class), ModuleName), true = ets:insert(?ETS_NAME, {{Class, internal_binary_to_type(TypeName)}, ModuleName}), ok. -sanity_check_module(Module) -> - case catch lists:member(rabbit_exchange_type, +sanity_check_module(ClassModule, Module) -> + case catch lists:member(ClassModule, lists:flatten( [Bs || {Attr, Bs} <- Module:module_info(attributes), Attr =:= behavior orelse Attr =:= behaviour])) of {'EXIT', {undef, _}} -> {error, not_module}; - false -> {error, not_exchange_type}; + false -> {error, {not_type, ClassModule}}; true -> ok end. +class_module(exchange) -> rabbit_exchange_type; +class_module(auth_mechanism) -> rabbit_auth_mechanism. + %%--------------------------------------------------------------------------- init([]) -> -- cgit v1.2.1 From 02699af969939bef5c934024b21411e10d92567c Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 3 Nov 2010 17:36:27 +0000 Subject: Move rabbit_mgmt_external_stats to the broker --- src/rabbit.erl | 7 ++ src/rabbit_external_stats.erl | 177 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 184 insertions(+) create mode 100644 src/rabbit_external_stats.erl diff --git a/src/rabbit.erl b/src/rabbit.erl index 8c36a9f0..ba179f38 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -128,6 +128,13 @@ {requires, kernel_ready}, {enables, core_initialized}]}). +-rabbit_boot_step({rabbit_external_stats, + [{description, "external statistics"}, + {mfa, {rabbit_sup, start_restartable_child, + [rabbit_external_stats]}}, + {requires, kernel_ready}, + {enables, core_initialized}]}). + -rabbit_boot_step({core_initialized, [{description, "core initialized"}, {requires, kernel_ready}]}). diff --git a/src/rabbit_external_stats.erl b/src/rabbit_external_stats.erl new file mode 100644 index 00000000..7c64e913 --- /dev/null +++ b/src/rabbit_external_stats.erl @@ -0,0 +1,177 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are Rabbit Technologies Ltd. +%% +%% Copyright (C) 2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_external_stats). + +-behaviour(gen_server). + +-export([start_link/0]). +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, + code_change/3]). + +-export([info/1]). + +-include_lib("rabbit.hrl"). + +-define(REFRESH_RATIO, 5000). +-define(KEYS, [os_pid, mem_ets, mem_binary, fd_used, fd_total, + mem_used, mem_limit, proc_used, proc_total, statistics_level]). + +%%-------------------------------------------------------------------- + +-record(state, {time_ms, fd_used, fd_total}). + +%%-------------------------------------------------------------------- + +start_link() -> + gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). + +info(Node) -> + gen_server2:call({?MODULE, Node}, {info, ?KEYS}, infinity). + +%%-------------------------------------------------------------------- + +get_used_fd_lsof() -> + Lsof = os:cmd("lsof -d \"0-9999999\" -lna -p " ++ os:getpid()), + string:words(Lsof, $\n). + +get_used_fd() -> + get_used_fd(os:type()). + +get_used_fd({unix, linux}) -> + {ok, Files} = file:list_dir("/proc/" ++ os:getpid() ++ "/fd"), + length(Files); + +get_used_fd({unix, Os}) when Os =:= darwin + orelse Os =:= freebsd -> + get_used_fd_lsof(); + +%% handle.exe can be obtained from +%% http://technet.microsoft.com/en-us/sysinternals/bb896655.aspx + +%% Output looks like: + +%% Handle v3.42 +%% Copyright (C) 1997-2008 Mark Russinovich +%% Sysinternals - www.sysinternals.com +%% +%% Handle type summary: +%% ALPC Port : 2 +%% Desktop : 1 +%% Directory : 1 +%% Event : 108 +%% File : 25 +%% IoCompletion : 3 +%% Key : 7 +%% KeyedEvent : 1 +%% Mutant : 1 +%% Process : 3 +%% Process : 38 +%% Thread : 41 +%% Timer : 3 +%% TpWorkerFactory : 2 +%% WindowStation : 2 +%% Total handles: 238 + +%% Note that the "File" number appears to include network sockets too; I assume +%% that's the number we care about. Note also that if you omit "-s" you will +%% see a list of file handles *without* network sockets. If you then add "-a" +%% you will see a list of handles of various types, including network sockets +%% shown as file handles to \Device\Afd. + +get_used_fd({win32, _}) -> + Handle = os:cmd("handle.exe /accepteula -s -p " ++ os:getpid() ++ + " 2> nul"), + case Handle of + [] -> install_handle_from_sysinternals; + _ -> find_files_line(string:tokens(Handle, "\r\n")) + end; + +get_used_fd(_) -> + unknown. + +find_files_line([]) -> + unknown; +find_files_line([" File " ++ Rest | _T]) -> + [Files] = string:tokens(Rest, ": "), + list_to_integer(Files); +find_files_line([_H | T]) -> + find_files_line(T). + +get_memory_limit() -> + try + vm_memory_monitor:get_memory_limit() + catch exit:{noproc, _} -> memory_monitoring_disabled + end. + +%%-------------------------------------------------------------------- + +infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. + +i(os_pid, _State) -> list_to_binary(os:getpid()); +i(mem_ets, _State) -> erlang:memory(ets); +i(mem_binary, _State) -> erlang:memory(binary); +i(fd_used, #state{fd_used = FdUsed}) -> FdUsed; +i(fd_total, #state{fd_total = FdTotal}) -> FdTotal; +i(mem_used, _State) -> erlang:memory(total); +i(mem_limit, _State) -> get_memory_limit(); +i(proc_used, _State) -> erlang:system_info( + process_count); +i(proc_total, _State) -> erlang:system_info( + process_limit); +i(statistics_level, _State) -> + {ok, StatsLevel} = application:get_env(rabbit, collect_statistics), + StatsLevel. + +%%-------------------------------------------------------------------- + +init([]) -> + State = #state{fd_total = file_handle_cache:ulimit()}, + {ok, internal_update(State)}. + + +handle_call({info, Items}, _From, State0) -> + State = case (rabbit_mgmt_util:now_ms() - State0#state.time_ms > + ?REFRESH_RATIO) of + true -> internal_update(State0); + false -> State0 + end, + {reply, infos(Items, State), State}; + +handle_call(_Req, _From, State) -> + {reply, unknown_request, State}. + +handle_cast(_C, State) -> + {noreply, State}. + + +handle_info(_I, State) -> + {noreply, State}. + +terminate(_, _) -> ok. + +code_change(_, State, _) -> {ok, State}. + +%%-------------------------------------------------------------------- + +internal_update(State) -> + State#state{time_ms = rabbit_mgmt_util:now_ms(), + fd_used = get_used_fd()}. -- cgit v1.2.1 From 131a372469e596372788188e66e8ba84ce006057 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 3 Nov 2010 17:44:49 +0000 Subject: Don't, ah, depend on the management plugin. --- src/rabbit_external_stats.erl | 6 +++--- src/rabbit_misc.erl | 5 +++++ 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/src/rabbit_external_stats.erl b/src/rabbit_external_stats.erl index 7c64e913..b6a15f9f 100644 --- a/src/rabbit_external_stats.erl +++ b/src/rabbit_external_stats.erl @@ -149,7 +149,7 @@ init([]) -> handle_call({info, Items}, _From, State0) -> - State = case (rabbit_mgmt_util:now_ms() - State0#state.time_ms > + State = case (rabbit_misc:now_ms() - State0#state.time_ms > ?REFRESH_RATIO) of true -> internal_update(State0); false -> State0 @@ -173,5 +173,5 @@ code_change(_, State, _) -> {ok, State}. %%-------------------------------------------------------------------- internal_update(State) -> - State#state{time_ms = rabbit_mgmt_util:now_ms(), - fd_used = get_used_fd()}. + State#state{time_ms = rabbit_misc:now_ms(), + fd_used = get_used_fd()}. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 086d260e..afcdae77 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -64,6 +64,7 @@ -export([recursive_delete/1, dict_cons/3, orddict_cons/3, unlink_and_capture_exit/1]). -export([get_options/2]). +-export([now_ms/0]). -import(mnesia). -import(lists). @@ -184,6 +185,7 @@ -spec(unlink_and_capture_exit/1 :: (pid()) -> 'ok'). -spec(get_options/2 :: ([optdef()], [string()]) -> {[string()], [{string(), any()}]}). +-spec(now_ms/0 :: () -> integer()). -endif. @@ -721,3 +723,6 @@ get_flag(K, [Nk | As]) -> {[Nk | As1], V}; get_flag(_, []) -> {[], false}. + +now_ms() -> + timer:now_diff(now(), {0,0,0}) div 1000. -- cgit v1.2.1 From c21ac4595848c890f736b41524b97cd700cd158e Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 9 Nov 2010 12:23:14 +0000 Subject: Make sockets limit infinite on Windows. --- src/file_handle_cache.erl | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl index 6a948d49..9d795477 100644 --- a/src/file_handle_cache.erl +++ b/src/file_handle_cache.erl @@ -149,7 +149,9 @@ %% never asked to return them, and they are not managed in any way by %% the server. It is simply a mechanism to ensure that processes that %% need file descriptors such as sockets can do so in such a way that -%% the overall number of open file descriptors is managed. +%% the overall number of open file descriptors is managed. (Caution: +%% obtain/0 should currently be used only for sockets, because of how +%% the obtain limit is computed.) %% %% The callers of register_callback/3, obtain/0, and the argument of %% transfer/1 are monitored, reducing the count of handles in use @@ -820,7 +822,16 @@ init([]) -> Lim -> lists:max([2, Lim - ?RESERVED_FOR_OTHERS]) end end, - ObtainLimit = obtain_limit(Limit), + ObtainLimit = case os:type() of + {win32, _OsName} -> + %% Obtains are used only for sockets, and the Windows + %% implementation has no limit on sockets. + infinity; + _ -> + %% Non-Windows systems are the normal case; socket + %% limits are included in the regular limits. + obtain_limit(Limit) + end, error_logger:info_msg("Limiting to approx ~p file handles (~p sockets)~n", [Limit, ObtainLimit]), Clients = ets:new(?CLIENT_ETS_TABLE, [set, private, {keypos, #cstate.pid}]), -- cgit v1.2.1 From 70645dd6696d186473ae1a1c785c7c9f92abdea4 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 9 Nov 2010 19:11:38 +0000 Subject: Added specs for exported functions throughout server. --- src/delegate.erl | 11 ++ src/delegate_sup.erl | 2 + src/gatherer.erl | 28 ++++- src/gen_server2.erl | 79 ++++++++++++ src/pg_local.erl | 12 +- src/rabbit.erl | 9 ++ src/rabbit_alarm.erl | 10 ++ src/rabbit_amqqueue.erl | 2 + src/rabbit_amqqueue_process.erl | 87 +++++++++++++ src/rabbit_amqqueue_sup.erl | 16 +++ src/rabbit_backing_queue.erl | 11 ++ src/rabbit_channel.erl | 62 +++++++++ src/rabbit_channel_sup.erl | 2 + src/rabbit_channel_sup_sup.erl | 6 + src/rabbit_connection_sup.erl | 2 + src/rabbit_error_logger.erl | 20 +++ src/rabbit_error_logger_file_h.erl | 33 +++++ src/rabbit_exchange_type.erl | 23 ++++ src/rabbit_exchange_type_registry.erl | 9 ++ src/rabbit_framing_channel.erl | 11 ++ src/rabbit_guid.erl | 7 ++ src/rabbit_limiter.erl | 47 +++++-- src/rabbit_log.erl | 8 ++ src/rabbit_memory_monitor.erl | 16 +++ src/rabbit_mnesia.erl | 14 +++ src/rabbit_msg_store.erl | 42 +++++++ src/rabbit_msg_store_gc.erl | 19 +++ src/rabbit_msg_store_index.erl | 23 ++++ src/rabbit_networking.erl | 22 ++++ src/rabbit_node_monitor.erl | 14 +++ src/rabbit_persister.erl | 48 +++++++ src/rabbit_queue_collector.erl | 15 +++ src/rabbit_reader.erl | 16 +++ src/rabbit_restartable_sup.erl | 13 ++ src/rabbit_sasl_report_file_h.erl | 26 ++++ src/rabbit_sup.erl | 18 +++ src/rabbit_tests.erl | 228 ++++++++++++++++++++++++++++++++++ src/rabbit_tests_event_receiver.erl | 19 +++ src/rabbit_writer.erl | 3 + src/supervisor2.erl | 47 +++++++ src/tcp_acceptor.erl | 18 +++ src/tcp_acceptor_sup.erl | 12 ++ src/tcp_client_sup.erl | 18 +++ src/tcp_listener.erl | 75 +++++++++++ src/tcp_listener_sup.erl | 22 ++++ src/test_sup.erl | 12 ++ src/vm_memory_monitor.erl | 7 ++ src/worker_pool.erl | 30 ++++- src/worker_pool_sup.erl | 4 + 49 files changed, 1259 insertions(+), 19 deletions(-) diff --git a/src/delegate.erl b/src/delegate.erl index 11abe73b..baf0e9cc 100644 --- a/src/delegate.erl +++ b/src/delegate.erl @@ -52,6 +52,17 @@ -spec(process_count/0 :: () -> non_neg_integer()). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: + ({'thunk',fun(() -> any())},_,_) -> {'reply',_,_,'hibernate'}). +-spec(handle_cast/2 :: + ({'thunk',fun(() -> any())},_) -> {'noreply',_,'hibernate'}). +-spec(handle_info/2 :: + (_,_) -> {'noreply',_}). +-spec(init/1 :: + ([]) -> {'ok','no_state','hibernate',{'backoff',1000,1000,10000}}). +-spec(terminate/2 :: (_,_) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl index 544546f1..231013b4 100644 --- a/src/delegate_sup.erl +++ b/src/delegate_sup.erl @@ -45,6 +45,8 @@ -spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). +-spec(init/1 :: (_) -> {'ok',{{'one_for_one',10,10},[{_,_,_,_,_,_}]}}). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/gatherer.erl b/src/gatherer.erl index 1e03d6c4..0b2f4a9e 100644 --- a/src/gatherer.erl +++ b/src/gatherer.erl @@ -40,6 +40,10 @@ %%---------------------------------------------------------------------------- +-record(gstate, { forks, values, blocked }). + +%%---------------------------------------------------------------------------- + -ifdef(use_specs). -spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). @@ -49,6 +53,26 @@ -spec(in/2 :: (pid(), any()) -> 'ok'). -spec(out/1 :: (pid()) -> {'value', any()} | 'empty'). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: (_,_,_) -> + {'noreply', + #gstate{values::queue(),blocked::queue()}, + 'hibernate'} | + {'stop',{'unexpected_call',_},_} | + {'reply', + 'empty' | 'ok' | {'value',_}, + #gstate{},'hibernate'} | + {'stop','normal','ok',_}). +-spec(handle_cast/2 :: (_,_) -> + {'noreply',#gstate{},'hibernate'} | + {'stop',{'unexpected_cast',_},_}). +-spec(handle_info/2 :: (_,_) -> {'stop',{'unexpected_info',_},_}). +-spec(init/1 :: ([]) -> + {'ok', + #gstate{forks::0,values::queue(),blocked::queue()}, + 'hibernate',{'backoff',1000,1000,10000}}). +-spec(terminate/2 :: (_,_) -> any()). + -endif. %%---------------------------------------------------------------------------- @@ -58,10 +82,6 @@ %%---------------------------------------------------------------------------- --record(gstate, { forks, values, blocked }). - -%%---------------------------------------------------------------------------- - start_link() -> gen_server2:start_link(?MODULE, [], [{timeout, infinity}]). diff --git a/src/gen_server2.erl b/src/gen_server2.erl index 230d1f2a..2921fff8 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -197,6 +197,85 @@ -spec(hibernate/1 :: (#gs2_state{}) -> no_return()). +-spec(abcast/2 :: (atom(),_) -> 'abcast'). +-spec(abcast/3 :: ([atom()],atom(),_) -> 'abcast'). +-spec(behaviour_info/1 :: (_) -> + 'undefined' | + [{'code_change' | + 'handle_call' | + 'handle_cast' | + 'handle_info' | + 'init' | + 'terminate', + 1 | 2 | 3},...]). +-spec(call/2 :: (_,_) -> any()). +-spec(call/3 :: (_,_,_) -> any()). +-spec(cast/2 :: (atom() | pid() | {atom(),_},_) -> 'ok'). +-spec(enter_loop/3 :: (atom(),maybe_improper_list(),_) -> any()). +-spec(enter_loop/4 :: (atom(),maybe_improper_list(),_,_) -> any()). +-spec(enter_loop/5 :: (atom(), + maybe_improper_list(), + _, + pid() | {'global',_} | {'local',atom()}, + _) -> + any()). +-spec(enter_loop/6 :: (atom(), + maybe_improper_list(), + _, + pid() | {'global',_} | {'local',atom()}, + _, + 'undefined' | {'backoff',_,_,_}) -> + any()). +-spec(format_status/2 :: (_,[any(),...]) -> nonempty_maybe_improper_list()). +-spec(init_it/6 :: (pid(),_,_,atom(),_,maybe_improper_list()) -> any()). +-spec(multi_call/2 :: (atom(),_) -> any()). +-spec(multi_call/3 :: (maybe_improper_list(),atom(),_) -> any()). +-spec(multi_call/4 :: (_,_,_,'infinity' | non_neg_integer()) -> any()). +-spec(print_event/3 :: (atom() | pid(),_,_) -> 'ok'). +-spec(reply/2 :: ({_,_},_) -> any()). +-spec(start/3 :: (atom() | tuple(), + _, + [{'debug', + ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | + {'spawn_opt',['link' | {_,_}]} | + {'timeout','infinity' | non_neg_integer()}]) -> + 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start/4 :: ({'global',_} | {'local',atom()}, + atom() | tuple(), + _, + [{'debug', + ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | + {'spawn_opt', ['link' | {_,_}]} | + {'timeout','infinity' | non_neg_integer()}]) -> + 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_link/3 :: (atom() | tuple(), + _, + [{'debug', + ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | + {'spawn_opt',['link' | {_,_}]} | + {'timeout','infinity' | non_neg_integer()}]) -> + 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_link/4 :: ({'global',_} | {'local',atom()}, + atom() | tuple(), + _, + [{'debug', + ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | + {'spawn_opt',['link' | {_,_}]} | + {'timeout','infinity' | non_neg_integer()}]) -> + 'ignore' | {'error',_} | {'ok',pid()}). +-spec(system_code_change/4 :: (#gs2_state{},_,_,_) -> any()). +-spec(system_continue/3 :: (_,_,#gs2_state{}) -> any()). +-spec(wake_hib/1 :: (#gs2_state{timeout_state::'undefined' | + {{non_neg_integer(), + non_neg_integer(), + non_neg_integer()}, + {'backoff', + integer(), + number(), + number(), + {_,_,_}}}}) -> + any()). + -endif. %%%========================================================================= diff --git a/src/pg_local.erl b/src/pg_local.erl index 49fa873a..495bfed4 100644 --- a/src/pg_local.erl +++ b/src/pg_local.erl @@ -41,6 +41,10 @@ %%---------------------------------------------------------------------------- +-record(state, {}). + +%%---------------------------------------------------------------------------- + -ifdef(use_specs). -type(name() :: term()). @@ -53,6 +57,12 @@ -spec(sync/0 :: () -> 'ok'). +-spec(handle_call/3 :: (_,_,_) -> {'noreply',_} | {'reply','ok',_}). +-spec(handle_cast/2 :: (_,_) -> {'noreply',_}). +-spec(handle_info/2 :: (_,_) -> {'noreply',_}). +-spec(init/1 :: ([]) -> {'ok',#state{}}). +-spec(terminate/2 :: (_,_) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- @@ -89,8 +99,6 @@ sync() -> %%% Callback functions from gen_server %%% --record(state, {}). - init([]) -> pg_local_table = ets:new(pg_local_table, [ordered_set, protected, named_table]), {ok, #state{}}. diff --git a/src/rabbit.erl b/src/rabbit.erl index 8c36a9f0..e164c462 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -200,6 +200,15 @@ {running_nodes, [node()]}]). -spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). +-spec(maybe_insert_default_data/0 :: () -> 'ok'). +-spec(start/2 :: ('normal',[]) -> + {'error', + {'erlang_version_too_old', + {'found',[any()]}, + {'required',[any(),...]}}} | + {'ok',pid()}). +-spec(stop/1 :: (_) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 53c713e6..aeb50c3a 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -49,6 +49,16 @@ -spec(stop/0 :: () -> 'ok'). -spec(register/2 :: (pid(), mfa_tuple()) -> boolean()). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/2 :: (_,_) -> {'ok','false' | 'not_understood' | 'true',_}). +-spec(handle_event/2 :: (_,_) -> {'ok',_}). +-spec(handle_info/2 :: (_,_) -> {'ok',_}). +-spec(init/1 :: ([]) -> + {'ok', + #alarms{alertees::dict(), + vm_memory_high_watermark::'false'}}). +-spec(terminate/2 :: (_,_) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 9d78bafa..2d08ec62 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -164,6 +164,8 @@ -spec(on_node_down/1 :: (node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> rabbit_types:amqqueue()). +-spec(drop_expired/1 :: (atom() | pid() | {atom(),_}) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index fe2c975b..f415e02f 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -80,6 +80,93 @@ txn, unsent_message_count}). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: ('consumers' | + 'info' | + 'purge' | + 'stat' | + {'info',_} | + {'init',_} | + {'maybe_run_queue_via_backing_queue', + fun((_) -> any())} | + {'notify_down',_} | + {'basic_get',_,boolean()} | + {'commit',_,_} | + {'delete',_,_} | + {'requeue',_,_} | + {'basic_cancel',_,_,_} | + {'deliver',_,_,_} | + {'deliver_immediately',_,_,_} | + {'basic_consume',_,_,_,_,_,_}, + _, + #q{}) -> + {'noreply',#q{},'hibernate' | 0} | + {'stop', + 'normal', + #q{q::#amqqueue{exclusive_owner::identifier()}, + backing_queue::atom() | + tuple()}} | + {'reply',_,#q{},'hibernate' | 0} | + {'stop', + 'normal', + 'not_found' | + 'ok' | + {'existing',_} | + {'ok',_}, + #q{}}). +-spec(handle_cast/2 :: + ('delete_immediately' | + 'drop_expired' | + 'emit_stats' | + 'maybe_expire' | + 'update_ram_duration' | + {'flush',atom() | pid() | {atom(),_}} | + {'notify_sent',_} | + {'set_maximum_since_use',_} | + {'set_ram_duration_target',_} | + {'unblock',_} | {'limit',_,_} | + {'rollback',_,_} | + {'ack',_,_,_} | + {'deliver',_,_,_} | + {'reject',_,_,_}, + _) -> + {'noreply', + #q{active_consumers::queue(), + stats_timer::{'state',_,'undefined'}}} | + {'noreply',#q{},'hibernate' | 0} | + {'stop','normal',_}). +-spec(handle_info/2 :: + (_,_) -> + {'noreply',#q{},'hibernate' | 0} | {'stop',_,_}). +-spec(handle_pre_hibernate/1:: (#q{}) -> {'hibernate',#q{}}). +-spec(info_keys/0 :: () -> [atom(),...]). +-spec(init/1 :: + (#amqqueue{}) -> + {'ok', + #q{q::#amqqueue{pid::pid()}, + exclusive_consumer::'none', + has_had_consumers::'false', + active_consumers::queue(), + blocked_consumers::queue(), + stats_timer::{'state',_,'undefined'}}, + 'hibernate', + {'backoff',1000,1000,10000}}). +-spec(prioritise_call/3 :: (_,_,_) -> 0 | 6 | 9). +-spec(prioritise_cast/2 :: (_,_) -> 0 | 7 | 8). +-spec(prioritise_info/2 :: (_,_) -> 0 | 8). +-spec(start_link/1 :: (_) -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(terminate/2 :: + (_,#q{rate_timer_ref::'just_measured' | 'undefined' | timer:tref()}) -> + #q{}). + +-endif. + +%%---------------------------------------------------------------------------- + -define(STATISTICS_KEYS, [pid, exclusive_consumer_pid, diff --git a/src/rabbit_amqqueue_sup.erl b/src/rabbit_amqqueue_sup.erl index 97d6cef9..c314430e 100644 --- a/src/rabbit_amqqueue_sup.erl +++ b/src/rabbit_amqqueue_sup.erl @@ -41,6 +41,22 @@ -define(SERVER, ?MODULE). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(init/1 :: + ([]) -> + {'ok', + {{'simple_one_for_one_terminate',10,10}, + [{_,_,_,_,_,_},...]}}). +-spec(start_child/1 :: (_) -> any()). +-spec(start_link/0 :: () -> 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + +%%---------------------------------------------------------------------------- + start_link() -> supervisor2:start_link({local, ?SERVER}, ?MODULE, []). diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl index 352e76fd..ef38d193 100644 --- a/src/rabbit_backing_queue.erl +++ b/src/rabbit_backing_queue.erl @@ -33,6 +33,17 @@ -export([behaviour_info/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(behaviour_info/1 :: + (_) -> 'undefined' | [{atom(),0 | 1 | 2 | 3 | 4},...]). + +-endif. + +%%---------------------------------------------------------------------------- + behaviour_info(callbacks) -> [ %% Called on startup with a list of durable queue names. The diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 873268cd..9bca7b88 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -100,6 +100,68 @@ -spec(info_all/1 :: ([rabbit_types:info_key()]) -> [[rabbit_types:info()]]). -spec(emit_stats/1 :: (pid()) -> 'ok'). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(flush/1 :: (_) -> any()). +-spec(handle_call/3 :: + (_,_,#ch{}) -> + {'noreply',#ch{},'hibernate'} | + {'reply', + 'ok' | + [{'acks_uncommitted' | + 'client_flow_blocked' | + 'connection' | + 'consumer_count' | + 'messages_unacknowledged' | + 'number' | + 'pid' | + 'prefetch_count' | + 'transactional' | + 'user' | + 'vhost', + _}] | + {'error',_} | + {'ok',[{_,_}]}, + #ch{}, + 'hibernate'}). +-spec(handle_cast/2 :: + ('emit_stats' | + 'terminate' | + {'command',_} | + {'flushed',_} | + {'method',_,_} | + {'deliver', + _, + boolean(), + {_,_,_,_,#basic_message{exchange_name::{_,_,_,_}}}},_) -> + {'noreply',#ch{}} | + {'noreply',#ch{},'hibernate'} | + {'stop','normal' | {_,[{_,_,_}]},_}). +-spec(handle_info/2 :: + ({'DOWN',_,'process',_,_},#ch{blocking::dict()}) -> + {'noreply',#ch{blocking::dict()}}). +-spec(handle_pre_hibernate/1 :: + (#ch{stats_timer::{'state',_,_}}) -> + {'hibernate', + #ch{stats_timer::{'state',_,_}}}). +-spec(init/1 :: + ([any(),...]) -> + {'ok', + #ch{state::'starting', + transaction_id::'none', + tx_participants::set(), + next_tag::1, + uncommitted_ack_q::queue(), + unacked_message_q::queue(), + most_recently_declared_queue::<<>>, + consumer_mapping::dict(), + blocking::dict(), + stats_timer::{'state',_,'undefined'}}, + 'hibernate', + {'backoff',1000,1000,10000}}). +-spec(prioritise_call/3 :: (_,_,_) -> 0 | 9). +-spec(prioritise_cast/2 :: (_,_) -> 0 | 7). +-spec(terminate/2 :: (_,#ch{}) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl index 02199a65..97783ec8 100644 --- a/src/rabbit_channel_sup.erl +++ b/src/rabbit_channel_sup.erl @@ -52,6 +52,8 @@ -spec(start_link/1 :: (start_link_args()) -> {'ok', pid(), pid()}). +-spec(init/1 :: ([]) -> {'ok',{{'one_for_all',0,1},[]}}). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_channel_sup_sup.erl b/src/rabbit_channel_sup_sup.erl index 21c39780..fdd05c6e 100644 --- a/src/rabbit_channel_sup_sup.erl +++ b/src/rabbit_channel_sup_sup.erl @@ -45,6 +45,12 @@ -spec(start_channel/2 :: (pid(), rabbit_channel_sup:start_link_args()) -> {'ok', pid(), pid()}). +-spec(init/1 :: + ([]) -> + {'ok', + {{'simple_one_for_one_terminate',0,1}, + [{_,_,_,_,_,_},...]}}). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl index b3821d3b..655376f4 100644 --- a/src/rabbit_connection_sup.erl +++ b/src/rabbit_connection_sup.erl @@ -46,6 +46,8 @@ -spec(start_link/0 :: () -> {'ok', pid(), pid()}). -spec(reader/1 :: (pid()) -> pid()). +-spec(init/1 :: ([]) -> {'ok',{{'one_for_all',0,1},[]}}). + -endif. %%-------------------------------------------------------------------------- diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl index 42861f86..0fe78b22 100644 --- a/src/rabbit_error_logger.erl +++ b/src/rabbit_error_logger.erl @@ -42,6 +42,26 @@ -export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, handle_info/2]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(boot/0 :: () -> 'ok'). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/2 :: (_,_) -> {'ok','not_understood',_}). +-spec(handle_event/2 :: (_,_) -> {'ok',_}). +-spec(handle_info/2 :: (_,_) -> {'ok',_}). +-spec(init/1 :: + ([binary() | #resource{},...]) -> + {'ok', + #resource{virtual_host::binary() | #resource{}, + kind::'exchange',name::<<_:128>>}}). +-spec(terminate/2 :: (_,_) -> 'terminated_ok'). + +-endif. + +%%---------------------------------------------------------------------------- + boot() -> {ok, DefaultVHost} = application:get_env(default_vhost), ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). diff --git a/src/rabbit_error_logger_file_h.erl b/src/rabbit_error_logger_file_h.erl index 875d680f..f85659c3 100644 --- a/src/rabbit_error_logger_file_h.erl +++ b/src/rabbit_error_logger_file_h.erl @@ -42,6 +42,39 @@ %% The first init/1 additionally allows for simple log rotation %% when the suffix is not the empty string. +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/2 :: (_,_) -> {'ok',_,_}). +-spec(handle_event/2 :: (_,_) -> {'ok',_}). +-spec(handle_info/2 :: + (_,_) -> + 'remove_handler' | + {'ok',_} | + {'swap_handler','install_prev',[],_,'go_back'}). +-spec(init/1 :: + (atom() | + [atom() | [any()] | char()] | + {atom() | + [atom() | [any()] | char()] | + {atom() | + [atom() | [any()] | char()] | + {atom() | [any()] | {_,_},'error' | [] | {_,_}}, + _}, + 'error' | + [] | + {'error_logger',_}}) -> + {'error',atom()} | + {'ok', + {pid() | {_,_,_},atom() | [any()],'error_logger' | []}}). +-spec(terminate/2 :: (_,_) -> []). + +-endif. + +%%---------------------------------------------------------------------------- + %% Used only when swapping handlers in log rotation init({{File, Suffix}, []}) -> case rabbit_misc:append_file(File, Suffix) of diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl index 742944dc..e81f9e55 100644 --- a/src/rabbit_exchange_type.erl +++ b/src/rabbit_exchange_type.erl @@ -33,6 +33,29 @@ -export([behaviour_info/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(behaviour_info/1 :: + (_) -> + 'undefined' | + [{'add_binding' | + 'assert_args_equivalence' | + 'create' | + 'delete' | + 'description' | + 'recover' | + 'remove_bindings' | + 'route' | + 'validate', + 0 | 1 | 2}, + ...]). + +-endif. + +%%---------------------------------------------------------------------------- + behaviour_info(callbacks) -> [ {description, 0}, diff --git a/src/rabbit_exchange_type_registry.erl b/src/rabbit_exchange_type_registry.erl index f15275b5..6ddad672 100644 --- a/src/rabbit_exchange_type_registry.erl +++ b/src/rabbit_exchange_type_registry.erl @@ -52,6 +52,15 @@ -spec(lookup_module/1 :: (atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: + (_,_,_) -> + {'reply','ok',_} | {'stop',{'unhandled_call',_},_}). +-spec(handle_cast/2 :: (_,_) -> {'stop',{'unhandled_cast',_},_}). +-spec(handle_info/2 :: (_,_) -> {'stop',{'unhandled_info',_},_}). +-spec(init/1 :: ([]) -> {'ok','none'}). +-spec(terminate/2 :: (_,_) -> 'ok'). + -endif. %%--------------------------------------------------------------------------- diff --git a/src/rabbit_framing_channel.erl b/src/rabbit_framing_channel.erl index cb53185f..bb0152e9 100644 --- a/src/rabbit_framing_channel.erl +++ b/src/rabbit_framing_channel.erl @@ -37,6 +37,17 @@ %% internal -export([mainloop/3]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(mainloop/3 :: (_,_,_) -> any()). +-spec(process/2 :: (atom() | pid() | port() | {atom(),atom()},_) -> 'ok'). +-spec(shutdown/1 :: (atom() | pid() | port() | {atom(),atom()}) -> 'ok'). +-spec(start_link/3 :: (_,_,_) -> {'ok',pid()}). + +-endif. + %%-------------------------------------------------------------------- start_link(Parent, ChannelPid, Protocol) -> diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl index e7d0c101..a3e1b657 100644 --- a/src/rabbit_guid.erl +++ b/src/rabbit_guid.erl @@ -57,6 +57,13 @@ -spec(string_guid/1 :: (any()) -> string()). -spec(binstring_guid/1 :: (any()) -> binary()). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: (_,_,_) -> {'noreply',_} | {'reply',_,#state{}}). +-spec(handle_cast/2 :: (_,_) -> {'noreply',_}). +-spec(handle_info/2 :: (_,_) -> {'noreply',_}). +-spec(init/1 :: ([any(),...]) -> {'ok',#state{}}). +-spec(terminate/2 :: (_,_) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index be1dcad1..7c3815ad 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -41,6 +41,17 @@ %%---------------------------------------------------------------------------- +-record(lim, {prefetch_count = 0, + ch_pid, + blocked = false, + queues = dict:new(), % QPid -> {MonitorRef, Notify} + volume = 0}). +%% 'Notify' is a boolean that indicates whether a queue should be +%% notified of a change in the limit or volume that may allow it to +%% deliver more messages via the limiter's channel. + +%%---------------------------------------------------------------------------- + -ifdef(use_specs). -type(maybe_pid() :: pid() | 'undefined'). @@ -57,18 +68,32 @@ -spec(unblock/1 :: (maybe_pid()) -> 'ok' | 'stopped'). -spec(is_blocked/1 :: (maybe_pid()) -> boolean()). --endif. +-spec(code_change/3 :: (_,_,_) -> any()). +-spec(handle_call/3 :: + ('block' | + 'get_limit' | + 'is_blocked' | + 'unblock' | + {'limit',_} | + {'can_send',_,_}, + _, + #lim{}) -> + {'reply',_,#lim{}} | + {'stop','normal','stopped',#lim{}}). +-spec(handle_cast/2 :: + ({'ack',_} | {'register',_} | {'unregister',_},#lim{}) -> + {'noreply',#lim{}}). +-spec(handle_info/2 :: + ({'DOWN',_,_,_,_},#lim{queues::dict()}) -> + {'noreply',#lim{queues::dict()}}). +-spec(init/1 :: + ([any(),...]) -> + {'ok', + #lim{prefetch_count::0,blocked::'false',queues::dict()}}). +-spec(prioritise_call/3 :: (_,_,_) -> 0 | 9). +-spec(terminate/2 :: (_,_) -> 'ok'). -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = dict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. +-endif. %%---------------------------------------------------------------------------- %% API diff --git a/src/rabbit_log.erl b/src/rabbit_log.erl index 863f77e7..70379ca6 100644 --- a/src/rabbit_log.erl +++ b/src/rabbit_log.erl @@ -60,6 +60,14 @@ -spec(error/1 :: (string()) -> 'ok'). -spec(error/2 :: (string(), [any()]) -> 'ok'). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: (_,_,_) -> {'noreply',_}). +-spec(handle_cast/2 :: (_,_) -> {'noreply',_}). +-spec(handle_info/2 :: (_,_) -> {'noreply',_}). +-spec(init/1 :: ([]) -> {'ok','none'}). +-spec(message/4 :: (_,_,_,_) -> 'ok'). +-spec(terminate/2 :: (_,_) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl index f87b6271..ea1e8727 100644 --- a/src/rabbit_memory_monitor.erl +++ b/src/rabbit_memory_monitor.erl @@ -94,6 +94,22 @@ (pid(), float() | 'infinity') -> number() | 'infinity'). -spec(stop/0 :: () -> 'ok'). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: + (_,_,_) -> + {'noreply',_} | + {'reply', + 'ok', + #state{queue_durations::atom() | ets:tid()}}). +-spec(handle_cast/2 :: (_,_) -> {'noreply',_} | {'stop','normal',_}). +-spec(handle_info/2 :: (_,_) -> {'noreply',_}). +-spec(init/1 :: + ([]) -> + {'ok', + #state{memory_limit::number(), + desired_duration::'infinity' | float()}}). +-spec(terminate/2 :: (_,#state{timer::timer:tref()}) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 8de2f0d6..1cb1bfc4 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -69,6 +69,20 @@ -spec(empty_ram_only_tables/0 :: () -> 'ok'). -spec(create_tables/0 :: () -> 'ok'). +-spec(table_names/0 :: + () -> + ['rabbit_durable_exchange' | + 'rabbit_durable_queue' | + 'rabbit_durable_route' | + 'rabbit_exchange' | + 'rabbit_listener' | + 'rabbit_queue' | + 'rabbit_reverse_route' | + 'rabbit_route' | + 'rabbit_user' | + 'rabbit_user_permission' | + 'rabbit_vhost']). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 682a7faa..a486a102 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -167,6 +167,48 @@ non_neg_integer()). -spec(delete_file/2 :: (non_neg_integer(), gc_state()) -> non_neg_integer()). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: + ('client_terminate' | + 'successfully_recovered_state' | + {'contains',_} | + {'new_client_state',_} | + {'read',_}, + _, + _) -> + {'noreply',_,'hibernate' | 0} | + {'reply',_,_,'hibernate' | 0}). +-spec(handle_cast/2 :: + ('sync' | + {'client_delete',_} | + {'release',[any()]} | + {'remove',[any()]} | + {'set_maximum_since_use',_} | + {'write',_} | + {'delete_file',_,number()} | + {'sync',[any()],_} | + {'combine_files',_,_,number()}, + _) -> + {'noreply',_,'hibernate' | 0}). +-spec(handle_info/2 :: + ('timeout' | {'EXIT',_,_},_) -> + {'noreply',_,'hibernate' | 0} | {'stop',_,_}). +-spec(init/1 :: + ([any(),...]) -> + {'ok',_,'hibernate',{'backoff',1000,1000,10000}}). +-spec(prioritise_call/3 :: (_,_,_) -> 0 | 2 | 7). +-spec(prioritise_cast/2 :: (_,_) -> 0 | 8). +-spec(terminate/2 :: + (_, + #msstate{dir::string(), + index_module::atom() | tuple(), + file_handles_ets::atom() | ets:tid(), + file_summary_ets::atom() | ets:tid(), + dedup_cache_ets::atom() | ets:tid(), + cur_file_cache_ets::atom() | ets:tid(), + client_refs::set()}) -> + #msstate{file_handle_cache::dict()}). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_msg_store_gc.erl b/src/rabbit_msg_store_gc.erl index cd9fd497..dd748721 100644 --- a/src/rabbit_msg_store_gc.erl +++ b/src/rabbit_msg_store_gc.erl @@ -60,6 +60,25 @@ -spec(stop/1 :: (pid()) -> 'ok'). -spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: ('stop',_,_) -> {'stop','normal','ok',_}). +-spec(handle_cast/2 :: + ({'delete',_} | + {'no_readers',_} | + {'set_maximum_since_use',_} | + {'combine',_,_}, + _) -> + {'noreply',_,'hibernate'}). +-spec(handle_info/2 :: (_,_) -> {'stop',{'unhandled_info',_},_}). +-spec(init/1 :: + ([any(),...]) -> + {'ok', + #state{pending_no_readers::dict()}, + 'hibernate', + {'backoff',1000,1000,10000}}). +-spec(prioritise_cast/2 :: (_,_) -> 0 | 8). +-spec(terminate/2 :: (_,_) -> any()). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_msg_store_index.erl b/src/rabbit_msg_store_index.erl index 0ed64a9d..6447d260 100644 --- a/src/rabbit_msg_store_index.erl +++ b/src/rabbit_msg_store_index.erl @@ -33,6 +33,29 @@ -export([behaviour_info/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(behaviour_info/1 :: + (_) -> + 'undefined' | + [{'delete' | + 'delete_by_file' | + 'insert' | + 'lookup' | + 'new' | + 'recover' | + 'terminate' | + 'update' | + 'update_fields', + 1 | 2 | 3}, + ...]). + +-endif. + +%%---------------------------------------------------------------------------- + behaviour_info(callbacks) -> [{new, 1}, {recover, 1}, diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index 03a9b386..9a3f470b 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -87,6 +87,28 @@ -spec(check_tcp_listener_address/3 :: (atom(), hostname(), ip_port()) -> {inet:ip_address(), atom()}). +-spec(boot/0 :: () -> 'ok'). +-spec(start_client/1 :: + (port() | #ssl_socket{ssl::{'sslsocket',_,_}}) -> + atom() | pid() | port() | {atom(),atom()}). +-spec(start_ssl_client/2 :: + (_,port() | #ssl_socket{ssl::{'sslsocket',_,_}}) -> + atom() | pid() | port() | {atom(),atom()}). +-spec(tcp_listener_started/3 :: + (_, + string() | + {byte(),byte(),byte(),byte()} | + {char(),char(),char(),char(),char(),char(),char(),char()}, + _) -> + 'ok'). +-spec(tcp_listener_stopped/3 :: + (_, + string() | + {byte(),byte(),byte(),byte()} | + {char(),char(),char(),char(),char(),char(),char(),char()}, + _) -> + 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl index f3013a16..3300017d 100644 --- a/src/rabbit_node_monitor.erl +++ b/src/rabbit_node_monitor.erl @@ -40,6 +40,20 @@ -define(SERVER, ?MODULE). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: (_,_,_) -> {'noreply',_}). +-spec(handle_cast/2 :: (_,_) -> {'noreply',_}). +-spec(handle_info/2 :: (_,_) -> {'noreply',_}). +-spec(init/1 :: ([]) -> {'ok','no_state'}). +-spec(start_link/0 :: () -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(terminate/2 :: (_,_) -> 'ok'). + +-endif. + %%-------------------------------------------------------------------- start_link() -> diff --git a/src/rabbit_persister.erl b/src/rabbit_persister.erl index 11056c8e..bcf61b2c 100644 --- a/src/rabbit_persister.erl +++ b/src/rabbit_persister.erl @@ -89,6 +89,54 @@ -spec(queue_content/1 :: (rabbit_amqqueue:name()) -> [{rabbit_types:message(), boolean()}]). +-spec(code_change/3 :: + (_,#pstate{},_) -> + {'ok', + #pstate{deadline::'infinity', + pending_logs::[], + pending_replies::[]}}). +-spec(handle_call/3 :: + (_,_,_) -> + {'noreply',_} | + {'noreply', + #pstate{deadline::'infinity' | + {number(),number(),number()}, + pending_logs::maybe_improper_list()}, + _} | + {'reply', + 'ok' | [{_,_,_}], + #pstate{deadline::'infinity' | + {number(),number(),number()}}, + _}). +-spec(handle_cast/2 :: + (_,_) -> + {'noreply',_} | + {'noreply', + #pstate{deadline::'infinity' | + {number(),number(),number()}, + pending_logs::maybe_improper_list()}, + _}). +-spec(handle_info/2 :: + (_,_) -> + {'noreply',_} | + {'noreply', + #pstate{deadline::'infinity' | + {number(),number(),number()}, + pending_logs::maybe_improper_list()}, + _}). +-spec(init/1 :: + ([any(),...]) -> + {'ok', + #pstate{entry_count::0, + deadline::'infinity', + pending_logs::[], + pending_replies::[], + snapshot::#psnapshot{transactions::dict(), + messages::atom() | ets:tid(), + queues::atom() | + ets:tid()}}}). +-spec(terminate/2 :: (_,#pstate{}) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_queue_collector.erl b/src/rabbit_queue_collector.erl index 6ac402c8..f12c7f85 100644 --- a/src/rabbit_queue_collector.erl +++ b/src/rabbit_queue_collector.erl @@ -50,6 +50,21 @@ -spec(register/2 :: (pid(), rabbit_types:amqqueue()) -> 'ok'). -spec(delete_all/1 :: (pid()) -> 'ok'). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: + ('delete_all' | + {'register',#amqqueue{pid::atom() | pid() | {atom(),atom()}}}, + _, + #state{queues::dict()}) -> + {'noreply',#state{queues::dict()}} | + {'reply','ok',#state{queues::dict()}}). +-spec(handle_cast/2 :: (_,_) -> {'stop',{'unhandled_cast',_},_}). +-spec(handle_info/2 :: + ({'DOWN',_,'process',_,_},#state{queues::dict()}) -> + {'noreply',#state{queues::dict()}}). +-spec(init/1 :: ([]) -> {'ok',#state{queues::dict()}}). +-spec(terminate/2 :: (_,_) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 127467bb..2d9a8f6c 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -185,6 +185,22 @@ rabbit_types:ok_or_error2( rabbit_networking:socket(), any()))) -> no_return()). +-spec(analyze_frame/3 :: + (_,_,_) -> + 'error' | + 'heartbeat' | + {'content_body',_} | + {'method',_,binary()} | + {'content_header', + char(), + char(), + non_neg_integer(), + binary()}). +-spec(mainloop/2 :: (_,#v1{}) -> any()). +-spec(system_code_change/4 :: (_,_,_,_) -> {'ok',_}). +-spec(system_continue/3 :: (_,_,#v1{}) -> any()). +-spec(system_terminate/4 :: (_,_,_,_) -> none()). + -endif. %%-------------------------------------------------------------------------- diff --git a/src/rabbit_restartable_sup.erl b/src/rabbit_restartable_sup.erl index 06d59249..2478682c 100644 --- a/src/rabbit_restartable_sup.erl +++ b/src/rabbit_restartable_sup.erl @@ -39,6 +39,19 @@ -include("rabbit.hrl"). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(init/1 :: + ([{_,_,_},...]) -> {'ok',{{'one_for_one',10,10},[{_,_,_,_,_,_},...]}}). +-spec(start_link/2 :: + (atom(),{_,_,_}) -> 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + +%%---------------------------------------------------------------------------- + start_link(Name, {_M, _F, _A} = Fun) -> supervisor:start_link({local, Name}, ?MODULE, [Fun]). diff --git a/src/rabbit_sasl_report_file_h.erl b/src/rabbit_sasl_report_file_h.erl index eb2037c2..db533d93 100644 --- a/src/rabbit_sasl_report_file_h.erl +++ b/src/rabbit_sasl_report_file_h.erl @@ -42,6 +42,32 @@ %% The first init/1 additionally allows for simple log rotation %% when the suffix is not the empty string. +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/2 :: (_,_) -> {'error','bad_query'}). +-spec(handle_event/2 :: (_,_) -> {'ok',_}). +-spec(handle_info/2 :: (_,_) -> 'remove_handler' | {'ok',_}). +-spec(init/1 :: + (atom() | + [atom() | [any()] | char()] | + {atom() | + [atom() | [any()] | char()] | + {atom() | + [atom() | [any()] | char()] | + {atom() | [any()] | {_,_},_}, + _}, + _}) -> + {'error',atom()} | + {'ok',{pid() | {_,_,_},atom() | [any()],_}}). +-spec(terminate/2 :: (_,{pid() | {'file_descriptor',atom(),_},_,_}) -> []). + +-endif. + +%%---------------------------------------------------------------------------- + %% Used only when swapping handlers and performing %% log rotation init({{File, Suffix}, []}) -> diff --git a/src/rabbit_sup.erl b/src/rabbit_sup.erl index 97613d17..dfcd01e0 100644 --- a/src/rabbit_sup.erl +++ b/src/rabbit_sup.erl @@ -42,6 +42,24 @@ -define(SERVER, ?MODULE). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(init/1 :: ([]) -> {'ok',{{'one_for_all',0,1},[]}}). +-spec(start_child/1 :: (atom() | tuple()) -> 'ok'). +-spec(start_child/2 :: (atom() | tuple(),[any()]) -> 'ok'). +-spec(start_child/3 :: (_,atom() | tuple(),[any()]) -> 'ok'). +-spec(start_link/0 :: () -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_restartable_child/1 :: (atom()) -> 'ok'). +-spec(start_restartable_child/2 :: (atom(),_) -> 'ok'). +-spec(stop_child/1 :: + (_) -> 'ok' | {'error','not_found' | 'running' | 'simple_one_for_one'}). + +-endif. + +%%---------------------------------------------------------------------------- + start_link() -> supervisor:start_link({local, ?SERVER}, ?MODULE, []). diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 71b23e01..2e1aa942 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -44,6 +44,234 @@ -define(PERSISTENT_MSG_STORE, msg_store_persistent). -define(TRANSIENT_MSG_STORE, msg_store_transient). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(add_log_handlers/1 :: ([any()]) -> 'ok'). +-spec(all_tests/0 :: () -> 'passed'). +-spec(assert_prop/3 :: ([any()],_,_) -> any()). +-spec(assert_props/2 :: (_,[any()]) -> [any()]). +-spec(await_response/1 :: (non_neg_integer()) -> 'ok'). +-spec(bpqueue_mff/4 :: + (fun((_,_,_,_) -> any()),_,{_,_},_) -> {[{_,[any()]}],_}). +-spec(bpqueue_mffl/3 :: (_,{_,_},_) -> {[{_,[any()]}],_}). +-spec(bpqueue_mffr/3 :: (_,{_,_},_) -> {[{_,[any()]}],_}). +-spec(bpqueue_test/5 :: + (fun((_,_,_) -> any()), + fun((_) -> any()), + fun((_) -> any()), + fun((_,_,_) -> any()), + fun((_,_,_,_) -> any())) -> + {_,_}). +-spec(check_get_options/3 :: ({_,[any()]},[any()],_) -> 'ok'). +-spec(check_pg_local/3 :: ('ok',[any()],[any()]) -> ['true',...]). +-spec(check_variable_queue_status/2 :: + (_,[any()]) -> + {'vqstate', + queue(), + {_,_}, + _, + {_,_}, + queue(), + _, + dict(), + _, + _, + {'sync',_,_,_,[any()]}, + _, + _, + _, + _, + _, + _, + _, + _, + _, + _, + _, + {'rates',_,_,_,_,_}}). +-spec(clean_logs/2 :: ([atom() | [atom() | [any()] | char()]],_) -> 'ok'). +-spec(control_action/2 :: (_,_) -> any()). +-spec(control_action/3 :: (_,_,_) -> any()). +-spec(control_action/4 :: (_,_,_,_) -> any()). +-spec(default_options/0 :: + () -> + [{[45 | 112 | 113,...], + [47 | 97 | 101 | 102 | 108 | 115,...]}, + ...]). +-spec(delete_file/1 :: + (atom() | [atom() | [any()] | char()]) -> 'ok' | {'error',atom()}). +-spec(delete_log_handlers/1 :: ([atom()]) -> 'ok'). +-spec(empty_files/1 :: ([atom() | [any()]]) -> [boolean() | {'error',atom()}]). +-spec(empty_test_queue/0 :: () -> 'ok'). +-spec(expand_options/2 :: ([any()],_) -> any()). +-spec(foreach_with_msg_store_client/4 :: (_,_,_,[any()]) -> 'ok'). +-spec(guid_bin/1 :: (_) -> binary()). +-spec(info_action/3 :: (_,[any()],_) -> 'ok'). +-spec(init_test_queue/0 :: + () -> {'undefined' | number(),{'qistate',_,_,_,_,_}}). +-spec(make_files_non_writable/1 :: ([atom() | [any()]]) -> 'ok'). +-spec(make_responder/1 :: (_) -> fun(() -> any())). +-spec(make_responder/2 :: (_,_) -> fun(() -> any())). +-spec(maybe_run_cluster_dependent_tests/0 :: () -> 'passed'). +-spec(msg_store_contains/3 :: (_,[any()],_) -> any()). +-spec(msg_store_read/2 :: ([any()],_) -> any()). +-spec(msg_store_remove/2 :: (_,_) -> 'ok'). +-spec(msg_store_remove/3 :: (_,_,_) -> 'ok'). +-spec(msg_store_sync/2 :: + (_, + {'client_msstate',atom() | pid() | {atom(),_},_,_,_,_,_,_,_,_,_,_}) -> + 'ok'). +-spec(msg_store_write/2 :: ([any()],_) -> 'ok'). +-spec(must_exit/1 :: (_) -> 'ok'). +-spec(non_empty_files/1 :: + ([atom() | [any()]]) -> [boolean() | {'error',atom()}]). +-spec(priority_queue_in_all/2 :: (_,[any()]) -> any()). +-spec(priority_queue_out_all/1 :: + ({'pqueue',nonempty_maybe_improper_list()} | + {'queue',maybe_improper_list(),maybe_improper_list()}) -> + [any()]). +-spec(publish_fetch_and_ack/3 :: (non_neg_integer(),_,_) -> any()). +-spec(queue_index_publish/3 :: + ([any()],boolean(),_) -> {_,maybe_improper_list()}). +-spec(queue_name/1 :: (binary()) -> #resource{name::binary()}). +-spec(restart_msg_store_empty/0 :: () -> 'ok'). +-spec(restart_test_queue/1 :: + ({'qistate',_,{dict(),[any()]},_,_,_}) -> + {'undefined' | number(), + {'qistate',_,_,_,_,_}}). +-spec(run_cluster_dependent_tests/1 :: (atom()) -> 'passed'). +-spec(sequence_with_content/1 :: ([any()]) -> any()). +-spec(set_permissions/2 :: (atom() | [any()],_) -> 'ok' | {'error',atom()}). +-spec(spawn_responders/3 :: (_,_,integer()) -> [pid()]). +-spec(test_app_management/0 :: () -> 'passed'). +-spec(test_backing_queue/0 :: () -> 'passed'). +-spec(test_bpqueue/0 :: () -> 'passed'). +-spec(test_cluster_management/0 :: () -> 'passed'). +-spec(test_cluster_management2/1 :: (atom()) -> 'passed'). +-spec(test_content_framing/0 :: () -> 'passed'). +-spec(test_content_framing/2 :: (number(),binary() | tuple()) -> 'passed'). +-spec(test_content_prop_roundtrip/2 :: ([tuple()],binary()) -> binary()). +-spec(test_content_properties/0 :: () -> 'passed'). +-spec(test_content_transcoding/0 :: () -> 'passed'). +-spec(test_delegates_async/1 :: (atom()) -> 'passed'). +-spec(test_delegates_sync/1 :: (atom()) -> 'passed'). +-spec(test_dropwhile/1 :: + (_) -> {_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_}). +-spec(test_field_values/0 :: () -> 'passed'). +-spec(test_file_handle_cache/0 :: () -> 'passed'). +-spec(test_log_management/0 :: () -> 'passed'). +-spec(test_log_management_during_startup/0 :: () -> 'passed'). +-spec(test_logs_working/2 :: (atom() | [any()],atom() | [any()]) -> 'ok'). +-spec(test_msg_store/0 :: () -> 'passed'). +-spec(test_option_parser/0 :: () -> 'passed'). +-spec(test_parsing/0 :: () -> 'passed'). +-spec(test_pg_local/0 :: () -> 'passed'). +-spec(test_priority_queue/0 :: () -> 'passed'). +-spec(test_priority_queue/1 :: ({'pqueue',[any(),...]} | {'queue',[any()],[any()]}) -> {'false',boolean(),number(),[{number(),_}],[any()]} | {'true',boolean(),number(),[{number(),_}],[any()]}). +-spec(test_queue/0 :: () -> #resource{name::binary()}). +-spec(test_queue_index/0 :: () -> 'passed'). +-spec(test_queue_index_props/0 :: () -> 'passed'). +-spec(test_queue_recover/0 :: () -> 'passed'). +-spec(test_server_status/0 :: () -> 'passed'). +-spec(test_simple_n_element_queue/1 :: (integer()) -> 'passed'). +-spec(test_spawn/1 :: (_) -> {pid(),pid()}). +-spec(test_statistics/0 :: () -> 'passed'). +-spec(test_statistics_event_receiver/1 :: + (atom() | pid() | port() | {atom(),atom()}) -> no_return()). +-spec(test_statistics_receive_event/2 :: + (atom() | pid() | {atom(),_},fun((_) -> any())) -> any()). +-spec(test_statistics_receive_event1/2 :: (_,fun((_) -> any())) -> any()). +-spec(test_statistics_receiver/1 :: (_) -> 'ok'). +-spec(test_supervisor_delayed_restart/0 :: () -> 'passed'). +-spec(test_topic_match/2 :: + (maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | []), + maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | [])) -> + 'passed' | + {'topic_match_failure', + maybe_improper_list( + binary() | + maybe_improper_list( + any(), + binary() | []) | + byte(), + binary() | + []), + maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | [])}). +-spec(test_topic_match/3 :: + (maybe_improper_list( + binary() | + maybe_improper_list( + any(), + binary() | []) | + byte(), + binary() | []), + maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | []), + _) -> + 'passed' | + {'topic_match_failure', + maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | []), + maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | [])}). +-spec(test_topic_matching/0 :: () -> 'passed'). +-spec(test_unfold/0 :: () -> 'passed'). +-spec(test_user_management/0 :: () -> 'passed'). +-spec(test_variable_queue/0 :: () -> 'passed'). +-spec(test_variable_queue_all_the_bits_not_covered_elsewhere1/1 :: + (_) -> any()). +-spec(test_variable_queue_all_the_bits_not_covered_elsewhere2/1 :: + ({'vqstate',_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_, + {'rates',_,_,number(),number(),_}}) -> + {_,_,_, + _,_,_, + _,_,_, + _,_,_, + _,_,_, + _,_,_, + _,_,_, + _,_}). +-spec(test_variable_queue_dynamic_duration_change/1 :: + (_) -> {_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_}). +-spec(test_variable_queue_partial_segments_delta_thing/1 :: + (_) -> {_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_}). +-spec(variable_queue_fetch/5 :: + (integer(),_,_,_,_) -> {_,maybe_improper_list()}). +-spec(variable_queue_publish/3 :: (_,integer(),_) -> any()). +-spec(variable_queue_wait_for_shuffling_end/1 :: (_) -> any()). +-spec(verify_read_with_published/4 :: (_,_,_,_) -> 'ko' | 'ok'). +-spec(with_empty_test_queue/1 :: + (fun((_) -> any())) -> {'qistate',_,'undefined','undefined',_,_}). +-spec(with_fresh_variable_queue/1 :: (fun((_) -> any())) -> 'passed'). +-spec(with_msg_store_client/3 :: (_,_,fun((_) -> any())) -> 'ok'). + +-endif. + +%%---------------------------------------------------------------------------- + test_content_prop_roundtrip(Datum, Binary) -> Types = [element(1, E) || E <- Datum], Values = [element(2, E) || E <- Datum], diff --git a/src/rabbit_tests_event_receiver.erl b/src/rabbit_tests_event_receiver.erl index a92e3da7..9d229c3f 100644 --- a/src/rabbit_tests_event_receiver.erl +++ b/src/rabbit_tests_event_receiver.erl @@ -36,6 +36,25 @@ -export([init/1, handle_call/2, handle_event/2, handle_info/2, terminate/2, code_change/3]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/2 :: (_,_) -> {'ok','not_understood',_}). +-spec(handle_event/2 :: + (_,atom() | pid() | port() | {atom(),atom()}) -> + {'ok',atom() | pid() | port() | {atom(),atom()}}). +-spec(handle_info/2 :: (_,_) -> {'ok',_}). +-spec(init/1 :: ([any(),...]) -> {'ok',_}). +-spec(start/1 :: (_) -> any()). +-spec(stop/0 :: () -> any()). +-spec(terminate/2 :: (_,_) -> 'ok'). + +-endif. + +%%---------------------------------------------------------------------------- + start(Pid) -> gen_event:add_handler(rabbit_event, ?MODULE, [Pid]). diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl index aa986e54..7020e0b6 100644 --- a/src/rabbit_writer.erl +++ b/src/rabbit_writer.erl @@ -79,6 +79,9 @@ non_neg_integer(), rabbit_types:protocol()) -> 'ok'). +-spec(mainloop/2 :: (_,_) -> 'done'). +-spec(mainloop1/2 :: (_,_) -> any()). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/supervisor2.erl b/src/supervisor2.erl index 93adfcb1..a4d74ef9 100644 --- a/src/supervisor2.erl +++ b/src/supervisor2.erl @@ -100,6 +100,53 @@ -define(is_terminate_simple(State), State#state.strategy =:= simple_one_for_one_terminate). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(behaviour_info/1 :: (_) -> 'undefined' | [{'init',1},...]). +-spec(check_childspecs/1 :: (_) -> 'ok' | {'error',_}). +-spec(code_change/3 :: (_,#state{module::atom() | tuple()},_) -> any()). +-spec(delayed_restart/2 :: (atom() | pid() | {atom(),_},_) -> 'ok'). +-spec(delete_child/2 :: (_,_) -> any()). +-spec(find_child/2 :: (_,_) -> [any()]). +-spec(handle_call/3 :: + ('which_children' | {_,_},_,_) -> + {'reply', + 'ok' | + [{_,_,_,_}] | + {'error',_} | + {'ok','undefined' | pid()} | + {'ok',pid(),_}, + _}). +-spec(handle_cast/2 :: + ('null' | {'delayed_restart',{_,_,_}},_) -> {'noreply',_}). +-spec(handle_info/2 :: + (_,_) -> {'noreply',_} | {'stop','shutdown',{_,_,_,_,_,_,_,_,_,_}}). +-spec(init/1 :: + ({_,atom() | tuple(),_}) -> + 'ignore' | + {'ok',#state{}} | + {'stop', + 'shutdown' | + {'bad_return',{atom() | tuple(),'init',_}} | + {'bad_start_spec',_} | + {'start_spec',_} | + {'supervisor_data',_}}). +-spec(restart_child/2 :: (_,_) -> any()). +-spec(start_child/2 :: (_,_) -> any()). +-spec(start_link/2 :: (_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_link/3 :: + ({'global',_} | {'local',atom()},_,_) -> + 'ignore' | {'error',_} | {'ok',pid()}). +-spec(terminate/2 :: (_,#state{children::maybe_improper_list()}) -> 'ok'). +-spec(terminate_child/2 :: (_,_) -> any()). +-spec(which_children/1 :: (_) -> any()). + +-endif. + +%%---------------------------------------------------------------------------- + behaviour_info(callbacks) -> [{init,1}]; behaviour_info(_Other) -> diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl index c9809ace..c5f26703 100644 --- a/src/tcp_acceptor.erl +++ b/src/tcp_acceptor.erl @@ -40,6 +40,24 @@ -record(state, {callback, sock, ref}). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: (_,_,_) -> {'noreply',_}). +-spec(handle_cast/2 :: + (_,_) -> {'noreply',_} | {'stop',{'cannot_accept',_},#state{}}). +-spec(handle_info/2 :: + (_,_) -> + {'noreply',_} | + {'stop','normal' | {'cannot_accept',_},#state{}}). +-spec(init/1 :: ({_,_}) -> {'ok',#state{}}). +-spec(start_link/2 :: (_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(terminate/2 :: (_,_) -> 'ok'). + +-endif. + %%-------------------------------------------------------------------- start_link(Callback, LSock) -> diff --git a/src/tcp_acceptor_sup.erl b/src/tcp_acceptor_sup.erl index 6e3bc4c9..5fbb21f2 100644 --- a/src/tcp_acceptor_sup.erl +++ b/src/tcp_acceptor_sup.erl @@ -37,6 +37,18 @@ -export([init/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(init/1 :: + (_) -> {'ok',{{'simple_one_for_one',10,10},[{_,_,_,_,_,_},...]}}). +-spec(start_link/2 :: (atom(),_) -> 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + +%%---------------------------------------------------------------------------- + start_link(Name, Callback) -> supervisor:start_link({local,Name}, ?MODULE, Callback). diff --git a/src/tcp_client_sup.erl b/src/tcp_client_sup.erl index 02d7e0e4..58e65a80 100644 --- a/src/tcp_client_sup.erl +++ b/src/tcp_client_sup.erl @@ -37,6 +37,24 @@ -export([init/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(init/1 :: + ({_,_,_}) -> + {'ok', + {{'simple_one_for_one_terminate',10,10}, + [{_,_,_,_,_,_},...]}}). +-spec(start_link/1 :: (_) -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_link/2 :: + ({'global',_} | {'local',atom()},_) -> + 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + +%%---------------------------------------------------------------------------- + start_link(Callback) -> supervisor2:start_link(?MODULE, Callback). diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl index 73ef9586..32a6652d 100644 --- a/src/tcp_listener.erl +++ b/src/tcp_listener.erl @@ -40,6 +40,81 @@ -record(state, {sock, on_startup, on_shutdown, label}). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: (_,_,_) -> {'noreply',_}). +-spec(handle_cast/2 :: (_,_) -> {'noreply',_}). +-spec(handle_info/2 :: (_,_) -> {'noreply',_}). +-spec(init/1 :: + ({'asn1' | + 'cdr' | + 'false' | + 'fcgi' | + 'http' | + 'http_bin' | + 'line' | + 'once' | + 'raw' | + 'sunrm' | + 'tpkt' | + 'true' | + integer() | + {byte(),byte(),byte(),byte()} | + {char(),char(),char(),char(),char(),char(),char(),char()}, + char(), + ['binary' | + 'inet' | + 'inet6' | + 'list' | + {atom(), + 'asn1' | + 'cdr' | + 'false' | + 'fcgi' | + 'http' | + 'http_bin' | + 'line' | + 'once' | + 'raw' | + 'sunrm' | + 'tpkt' | + 'true' | + integer() | + {_,_,_,_} | + {_,_,_,_,_,_,_,_}} | + {'raw',non_neg_integer(),non_neg_integer(),binary()}], + _, + _, + {_,_,_}, + _, + _}) -> + {'ok', + #state{sock::port(),on_startup::{_,_,_}}} | + {'stop', + {'cannot_listen', + {byte(),byte(),byte(),byte()} | + {char(), + char(), + char(), + char(), + char(), + char(), + char(), + char()}, + char(), + atom()}}). +-spec(start_link/8 :: + (_,_,_,_,_,_,_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(terminate/2 :: + (_, + #state{sock::port(),on_shutdown::{atom() | tuple(),atom(),[any()]}}) -> + any()). + +-endif. + %%-------------------------------------------------------------------- start_link(IPAddress, Port, SocketOpts, diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl index 493925ef..66787537 100644 --- a/src/tcp_listener_sup.erl +++ b/src/tcp_listener_sup.erl @@ -37,6 +37,28 @@ -export([init/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(init/1 :: + ({{integer(),integer(),integer(),integer()} | {_,_,_,_,_,_,_,_}, + number(), + _, + _, + _, + _, + _, + _}) -> + {'ok',{{'one_for_all',10,10},[{_,_,_,_,_,_},...]}}). +-spec(start_link/7 :: (_,_,_,_,_,_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_link/8 :: + (_,_,_,_,_,_,_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + +%%---------------------------------------------------------------------------- + start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, AcceptCallback, Label) -> start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, diff --git a/src/test_sup.erl b/src/test_sup.erl index f41793bc..04a9637a 100644 --- a/src/test_sup.erl +++ b/src/test_sup.erl @@ -36,6 +36,18 @@ -export([test_supervisor_delayed_restart/0, init/1, start_child/0]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(init/1 :: ([any(),...]) -> {'ok',{{_,1,1},[{_,_,_,_,_,_},...]}}). +-spec(start_child/0 :: () -> {'ok',pid()}). +-spec(test_supervisor_delayed_restart/0 :: () -> 'passed'). + +-endif. + +%%---------------------------------------------------------------------------- + test_supervisor_delayed_restart() -> passed = with_sup(simple_one_for_one_terminate, fun (SupPid) -> diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl index 9eb9d0a6..402d3c5a 100644 --- a/src/vm_memory_monitor.erl +++ b/src/vm_memory_monitor.erl @@ -82,6 +82,13 @@ -spec(get_vm_memory_high_watermark/0 :: () -> float()). -spec(set_vm_memory_high_watermark/1 :: (float()) -> 'ok'). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: (_,_,_) -> {'noreply',_} | {'reply',_,#state{}}). +-spec(handle_cast/2 :: (_,_) -> {'noreply',_}). +-spec(handle_info/2 :: (_,_) -> {'noreply',_}). +-spec(init/1 :: ([number(),...]) -> {'ok',#state{alarmed::boolean()}}). +-spec(terminate/2 :: (_,_) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/worker_pool.erl b/src/worker_pool.erl index 595884e0..8c31a1fb 100644 --- a/src/worker_pool.erl +++ b/src/worker_pool.erl @@ -50,6 +50,10 @@ %%---------------------------------------------------------------------------- +-record(state, { available, pending }). + +%%---------------------------------------------------------------------------- + -ifdef(use_specs). -spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). @@ -57,6 +61,30 @@ -spec(submit_async/1 :: (fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). +-spec(code_change/3 :: (_,_,_) -> {'ok',_}). +-spec(handle_call/3 :: + (_,_,_) -> + {'noreply', + #state{available::queue(),pending::queue()}, + 'hibernate'} | + {'stop',{'unexpected_call',_},_} | + {'reply', + 'undefined' | pid(), + #state{available::queue()},'hibernate'}). +-spec(handle_cast/2 :: + (_,_) -> + {'noreply',#state{},'hibernate'} | + {'stop',{'unexpected_cast',_},_}). +-spec(handle_info/2 :: (_,_) -> {'stop',{'unexpected_info',_},_}). +-spec(idle/1 :: (_) -> 'ok'). +-spec(init/1 :: + ([]) -> + {'ok', + #state{available::queue(),pending::queue()}, + 'hibernate', + {'backoff',1000,1000,10000}}). +-spec(terminate/2 :: (_,_) -> any()). + -endif. %%---------------------------------------------------------------------------- @@ -65,8 +93,6 @@ -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). --record(state, { available, pending }). - %%---------------------------------------------------------------------------- start_link() -> diff --git a/src/worker_pool_sup.erl b/src/worker_pool_sup.erl index 177a1453..191e8870 100644 --- a/src/worker_pool_sup.erl +++ b/src/worker_pool_sup.erl @@ -44,6 +44,10 @@ -spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). -spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). +-spec(init/1 :: + ([integer(),...]) -> + {'ok',{{'one_for_one',10,10},[{_,_,_,_,_,_},...]}}). + -endif. %%---------------------------------------------------------------------------- -- cgit v1.2.1 From 28409088bda290347a25a61a47aaceca156c3316 Mon Sep 17 00:00:00 2001 From: Rob Harrop Date: Tue, 9 Nov 2010 22:11:32 +0000 Subject: Reworked rabbit_heartbeat to allow for reuse in the STOMP adapter --- src/rabbit_connection_sup.erl | 13 +++++++++++-- src/rabbit_heartbeat.erl | 14 +++++++------- 2 files changed, 18 insertions(+), 9 deletions(-) diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl index b3821d3b..184b0245 100644 --- a/src/rabbit_connection_sup.erl +++ b/src/rabbit_connection_sup.erl @@ -83,17 +83,26 @@ start_heartbeat_fun(SupPid) -> none; (Sock, TimeoutSec) -> Parent = self(), + SendFun = + fun() -> + Frame = rabbit_binary_generator:build_heartbeat_frame(), + catch rabbit_net:send(Sock, Frame) + end, + TimeoutFun = + fun() -> + Parent ! timeout + end, {ok, Sender} = supervisor2:start_child( SupPid, {heartbeat_sender, {rabbit_heartbeat, start_heartbeat_sender, - [Parent, Sock, TimeoutSec]}, + [Sock, TimeoutSec, SendFun]}, transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}), {ok, Receiver} = supervisor2:start_child( SupPid, {heartbeat_receiver, {rabbit_heartbeat, start_heartbeat_receiver, - [Parent, Sock, TimeoutSec]}, + [Sock, TimeoutSec, TimeoutFun]}, transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}), {Sender, Receiver} end. diff --git a/src/rabbit_heartbeat.erl b/src/rabbit_heartbeat.erl index a9945af1..8188f381 100644 --- a/src/rabbit_heartbeat.erl +++ b/src/rabbit_heartbeat.erl @@ -43,12 +43,13 @@ -export_type([heartbeaters/0]). -type(heartbeaters() :: rabbit_types:maybe({pid(), pid()})). +-type(callback_fun() :: fun (() -> any())). -spec(start_heartbeat_sender/3 :: - (pid(), rabbit_net:socket(), non_neg_integer()) -> + (rabbit_net:socket(), non_neg_integer(), callback_fun()) -> rabbit_types:ok(pid())). -spec(start_heartbeat_receiver/3 :: - (pid(), rabbit_net:socket(), non_neg_integer()) -> + (rabbit_net:socket(), non_neg_integer(), callback_fun()) -> rabbit_types:ok(pid())). -spec(pause_monitor/1 :: (heartbeaters()) -> 'ok'). @@ -58,24 +59,23 @@ %%---------------------------------------------------------------------------- -start_heartbeat_sender(_Parent, Sock, TimeoutSec) -> +start_heartbeat_sender(Sock, TimeoutSec, SendFun) -> %% the 'div 2' is there so that we don't end up waiting for nearly %% 2 * TimeoutSec before sending a heartbeat in the boundary case %% where the last message was sent just after a heartbeat. heartbeater( {Sock, TimeoutSec * 1000 div 2, send_oct, 0, fun () -> - catch rabbit_net:send( - Sock, rabbit_binary_generator:build_heartbeat_frame()), + SendFun(), continue end}). -start_heartbeat_receiver(Parent, Sock, TimeoutSec) -> +start_heartbeat_receiver(Sock, TimeoutSec, TimeoutFun) -> %% we check for incoming data every interval, and time out after %% two checks with no change. As a result we will time out between %% 2 and 3 intervals after the last data has been received. heartbeater({Sock, TimeoutSec * 1000, recv_oct, 1, fun () -> - Parent ! timeout, + TimeoutFun(), stop end}). -- cgit v1.2.1 From 44f8315a2c86e82c161a7ea022df1dcf33516f4a Mon Sep 17 00:00:00 2001 From: Rob Harrop Date: Wed, 10 Nov 2010 19:27:14 +0000 Subject: Backout heartbeat changes on this branch. All worked moved to bug23484 --- src/rabbit_connection_sup.erl | 13 ++----------- src/rabbit_heartbeat.erl | 14 +++++++------- 2 files changed, 9 insertions(+), 18 deletions(-) diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl index 184b0245..b3821d3b 100644 --- a/src/rabbit_connection_sup.erl +++ b/src/rabbit_connection_sup.erl @@ -83,26 +83,17 @@ start_heartbeat_fun(SupPid) -> none; (Sock, TimeoutSec) -> Parent = self(), - SendFun = - fun() -> - Frame = rabbit_binary_generator:build_heartbeat_frame(), - catch rabbit_net:send(Sock, Frame) - end, - TimeoutFun = - fun() -> - Parent ! timeout - end, {ok, Sender} = supervisor2:start_child( SupPid, {heartbeat_sender, {rabbit_heartbeat, start_heartbeat_sender, - [Sock, TimeoutSec, SendFun]}, + [Parent, Sock, TimeoutSec]}, transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}), {ok, Receiver} = supervisor2:start_child( SupPid, {heartbeat_receiver, {rabbit_heartbeat, start_heartbeat_receiver, - [Sock, TimeoutSec, TimeoutFun]}, + [Parent, Sock, TimeoutSec]}, transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}), {Sender, Receiver} end. diff --git a/src/rabbit_heartbeat.erl b/src/rabbit_heartbeat.erl index 8188f381..a9945af1 100644 --- a/src/rabbit_heartbeat.erl +++ b/src/rabbit_heartbeat.erl @@ -43,13 +43,12 @@ -export_type([heartbeaters/0]). -type(heartbeaters() :: rabbit_types:maybe({pid(), pid()})). --type(callback_fun() :: fun (() -> any())). -spec(start_heartbeat_sender/3 :: - (rabbit_net:socket(), non_neg_integer(), callback_fun()) -> + (pid(), rabbit_net:socket(), non_neg_integer()) -> rabbit_types:ok(pid())). -spec(start_heartbeat_receiver/3 :: - (rabbit_net:socket(), non_neg_integer(), callback_fun()) -> + (pid(), rabbit_net:socket(), non_neg_integer()) -> rabbit_types:ok(pid())). -spec(pause_monitor/1 :: (heartbeaters()) -> 'ok'). @@ -59,23 +58,24 @@ %%---------------------------------------------------------------------------- -start_heartbeat_sender(Sock, TimeoutSec, SendFun) -> +start_heartbeat_sender(_Parent, Sock, TimeoutSec) -> %% the 'div 2' is there so that we don't end up waiting for nearly %% 2 * TimeoutSec before sending a heartbeat in the boundary case %% where the last message was sent just after a heartbeat. heartbeater( {Sock, TimeoutSec * 1000 div 2, send_oct, 0, fun () -> - SendFun(), + catch rabbit_net:send( + Sock, rabbit_binary_generator:build_heartbeat_frame()), continue end}). -start_heartbeat_receiver(Sock, TimeoutSec, TimeoutFun) -> +start_heartbeat_receiver(Parent, Sock, TimeoutSec) -> %% we check for incoming data every interval, and time out after %% two checks with no change. As a result we will time out between %% 2 and 3 intervals after the last data has been received. heartbeater({Sock, TimeoutSec * 1000, recv_oct, 1, fun () -> - TimeoutFun(), + Parent ! timeout, stop end}). -- cgit v1.2.1 From 9d89db21e61bce431743d721c24d59ce6d2db1f2 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 11 Nov 2010 15:37:35 +0000 Subject: Another try, removing specs for callbacks. --- src/delegate_sup.erl | 8 -- src/gatherer.erl | 10 +- src/gen_server2.erl | 79 ++++++++++++ src/pg_local.erl | 7 +- src/rabbit.erl | 2 + src/rabbit_amqqueue.erl | 2 + src/rabbit_amqqueue_process.erl | 11 ++ src/rabbit_amqqueue_sup.erl | 10 ++ src/rabbit_backing_queue.erl | 11 ++ src/rabbit_channel.erl | 2 + src/rabbit_channel_sup_sup.erl | 1 - src/rabbit_connection_sup.erl | 1 - src/rabbit_error_logger.erl | 10 ++ src/rabbit_event.erl | 1 - src/rabbit_exchange_type.erl | 23 ++++ src/rabbit_exchange_type_registry.erl | 1 - src/rabbit_framing_channel.erl | 11 ++ src/rabbit_guid.erl | 1 - src/rabbit_limiter.erl | 22 ++-- src/rabbit_log.erl | 3 +- src/rabbit_memory_monitor.erl | 1 - src/rabbit_mnesia.erl | 14 +++ src/rabbit_msg_store_gc.erl | 1 - src/rabbit_msg_store_index.erl | 23 ++++ src/rabbit_networking.erl | 22 ++++ src/rabbit_node_monitor.erl | 2 +- src/rabbit_queue_collector.erl | 1 - src/rabbit_queue_index.erl | 2 - src/rabbit_reader.erl | 16 +++ src/rabbit_restartable_sup.erl | 11 ++ src/rabbit_sup.erl | 16 +++ src/rabbit_tests.erl | 228 ++++++++++++++++++++++++++++++++++ src/rabbit_tests_event_receiver.erl | 11 ++ src/rabbit_writer.erl | 3 + src/supervisor2.erl | 22 ++++ src/tcp_acceptor.erl | 8 ++ src/tcp_client_sup.erl | 13 ++ src/tcp_listener.erl | 9 ++ src/tcp_listener_sup.erl | 12 ++ src/test_sup.erl | 11 ++ src/worker_pool.erl | 9 +- src/worker_pool_sup.erl | 1 - 42 files changed, 608 insertions(+), 44 deletions(-) diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl index 544546f1..cb084428 100644 --- a/src/delegate_sup.erl +++ b/src/delegate_sup.erl @@ -41,14 +41,6 @@ %%---------------------------------------------------------------------------- --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - start_link() -> supervisor:start_link({local, ?SERVER}, ?MODULE, []). diff --git a/src/gatherer.erl b/src/gatherer.erl index 1e03d6c4..6f0ba049 100644 --- a/src/gatherer.erl +++ b/src/gatherer.erl @@ -40,10 +40,12 @@ %%---------------------------------------------------------------------------- +-record(gstate, { forks, values, blocked }). + +%%---------------------------------------------------------------------------- + -ifdef(use_specs). --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(stop/1 :: (pid()) -> 'ok'). -spec(fork/1 :: (pid()) -> 'ok'). -spec(finish/1 :: (pid()) -> 'ok'). -spec(in/2 :: (pid(), any()) -> 'ok'). @@ -58,10 +60,6 @@ %%---------------------------------------------------------------------------- --record(gstate, { forks, values, blocked }). - -%%---------------------------------------------------------------------------- - start_link() -> gen_server2:start_link(?MODULE, [], [{timeout, infinity}]). diff --git a/src/gen_server2.erl b/src/gen_server2.erl index 230d1f2a..2921fff8 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -197,6 +197,85 @@ -spec(hibernate/1 :: (#gs2_state{}) -> no_return()). +-spec(abcast/2 :: (atom(),_) -> 'abcast'). +-spec(abcast/3 :: ([atom()],atom(),_) -> 'abcast'). +-spec(behaviour_info/1 :: (_) -> + 'undefined' | + [{'code_change' | + 'handle_call' | + 'handle_cast' | + 'handle_info' | + 'init' | + 'terminate', + 1 | 2 | 3},...]). +-spec(call/2 :: (_,_) -> any()). +-spec(call/3 :: (_,_,_) -> any()). +-spec(cast/2 :: (atom() | pid() | {atom(),_},_) -> 'ok'). +-spec(enter_loop/3 :: (atom(),maybe_improper_list(),_) -> any()). +-spec(enter_loop/4 :: (atom(),maybe_improper_list(),_,_) -> any()). +-spec(enter_loop/5 :: (atom(), + maybe_improper_list(), + _, + pid() | {'global',_} | {'local',atom()}, + _) -> + any()). +-spec(enter_loop/6 :: (atom(), + maybe_improper_list(), + _, + pid() | {'global',_} | {'local',atom()}, + _, + 'undefined' | {'backoff',_,_,_}) -> + any()). +-spec(format_status/2 :: (_,[any(),...]) -> nonempty_maybe_improper_list()). +-spec(init_it/6 :: (pid(),_,_,atom(),_,maybe_improper_list()) -> any()). +-spec(multi_call/2 :: (atom(),_) -> any()). +-spec(multi_call/3 :: (maybe_improper_list(),atom(),_) -> any()). +-spec(multi_call/4 :: (_,_,_,'infinity' | non_neg_integer()) -> any()). +-spec(print_event/3 :: (atom() | pid(),_,_) -> 'ok'). +-spec(reply/2 :: ({_,_},_) -> any()). +-spec(start/3 :: (atom() | tuple(), + _, + [{'debug', + ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | + {'spawn_opt',['link' | {_,_}]} | + {'timeout','infinity' | non_neg_integer()}]) -> + 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start/4 :: ({'global',_} | {'local',atom()}, + atom() | tuple(), + _, + [{'debug', + ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | + {'spawn_opt', ['link' | {_,_}]} | + {'timeout','infinity' | non_neg_integer()}]) -> + 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_link/3 :: (atom() | tuple(), + _, + [{'debug', + ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | + {'spawn_opt',['link' | {_,_}]} | + {'timeout','infinity' | non_neg_integer()}]) -> + 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_link/4 :: ({'global',_} | {'local',atom()}, + atom() | tuple(), + _, + [{'debug', + ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | + {'spawn_opt',['link' | {_,_}]} | + {'timeout','infinity' | non_neg_integer()}]) -> + 'ignore' | {'error',_} | {'ok',pid()}). +-spec(system_code_change/4 :: (#gs2_state{},_,_,_) -> any()). +-spec(system_continue/3 :: (_,_,#gs2_state{}) -> any()). +-spec(wake_hib/1 :: (#gs2_state{timeout_state::'undefined' | + {{non_neg_integer(), + non_neg_integer(), + non_neg_integer()}, + {'backoff', + integer(), + number(), + number(), + {_,_,_}}}}) -> + any()). + -endif. %%%========================================================================= diff --git a/src/pg_local.erl b/src/pg_local.erl index 49fa873a..afd5c6d9 100644 --- a/src/pg_local.erl +++ b/src/pg_local.erl @@ -41,11 +41,14 @@ %%---------------------------------------------------------------------------- +-record(state, {}). + +%%---------------------------------------------------------------------------- + -ifdef(use_specs). -type(name() :: term()). --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). -spec(start/0 :: () -> {'ok', pid()} | {'error', any()}). -spec(join/2 :: (name(), pid()) -> 'ok'). -spec(leave/2 :: (name(), pid()) -> 'ok'). @@ -89,8 +92,6 @@ sync() -> %%% Callback functions from gen_server %%% --record(state, {}). - init([]) -> pg_local_table = ets:new(pg_local_table, [ordered_set, protected, named_table]), {ok, #state{}}. diff --git a/src/rabbit.erl b/src/rabbit.erl index 8c36a9f0..24eb955e 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -200,6 +200,8 @@ {running_nodes, [node()]}]). -spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). +-spec(maybe_insert_default_data/0 :: () -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 9d78bafa..2d08ec62 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -164,6 +164,8 @@ -spec(on_node_down/1 :: (node()) -> 'ok'). -spec(pseudo_queue/2 :: (binary(), pid()) -> rabbit_types:amqqueue()). +-spec(drop_expired/1 :: (atom() | pid() | {atom(),_}) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index fe2c975b..9f99d2ff 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -80,6 +80,17 @@ txn, unsent_message_count}). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(info_keys/0 :: () -> [atom(),...]). +-spec(start_link/1 :: (_) -> 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + +%%---------------------------------------------------------------------------- + -define(STATISTICS_KEYS, [pid, exclusive_consumer_pid, diff --git a/src/rabbit_amqqueue_sup.erl b/src/rabbit_amqqueue_sup.erl index 97d6cef9..14550752 100644 --- a/src/rabbit_amqqueue_sup.erl +++ b/src/rabbit_amqqueue_sup.erl @@ -41,6 +41,16 @@ -define(SERVER, ?MODULE). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_child/1 :: (_) -> any()). + +-endif. + +%%---------------------------------------------------------------------------- + start_link() -> supervisor2:start_link({local, ?SERVER}, ?MODULE, []). diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl index 352e76fd..ef38d193 100644 --- a/src/rabbit_backing_queue.erl +++ b/src/rabbit_backing_queue.erl @@ -33,6 +33,17 @@ -export([behaviour_info/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(behaviour_info/1 :: + (_) -> 'undefined' | [{atom(),0 | 1 | 2 | 3 | 4},...]). + +-endif. + +%%---------------------------------------------------------------------------- + behaviour_info(callbacks) -> [ %% Called on startup with a list of durable queue names. The diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 873268cd..ad00daa9 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -100,6 +100,8 @@ -spec(info_all/1 :: ([rabbit_types:info_key()]) -> [[rabbit_types:info()]]). -spec(emit_stats/1 :: (pid()) -> 'ok'). +-spec(flush/1 :: (_) -> any()). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_channel_sup_sup.erl b/src/rabbit_channel_sup_sup.erl index 21c39780..82bf3bc9 100644 --- a/src/rabbit_channel_sup_sup.erl +++ b/src/rabbit_channel_sup_sup.erl @@ -41,7 +41,6 @@ -ifdef(use_specs). --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). -spec(start_channel/2 :: (pid(), rabbit_channel_sup:start_link_args()) -> {'ok', pid(), pid()}). diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl index b3821d3b..ccd272d6 100644 --- a/src/rabbit_connection_sup.erl +++ b/src/rabbit_connection_sup.erl @@ -43,7 +43,6 @@ -ifdef(use_specs). --spec(start_link/0 :: () -> {'ok', pid(), pid()}). -spec(reader/1 :: (pid()) -> pid()). -endif. diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl index 42861f86..93f50110 100644 --- a/src/rabbit_error_logger.erl +++ b/src/rabbit_error_logger.erl @@ -42,6 +42,16 @@ -export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, handle_info/2]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(boot/0 :: () -> 'ok'). + +-endif. + +%%---------------------------------------------------------------------------- + boot() -> {ok, DefaultVHost} = application:get_env(default_vhost), ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl index 2b236531..bd78ea22 100644 --- a/src/rabbit_event.erl +++ b/src/rabbit_event.erl @@ -69,7 +69,6 @@ -type(timer_fun() :: fun (() -> 'ok')). --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). -spec(init_stats_timer/0 :: () -> state()). -spec(ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). -spec(stop_stats_timer/1 :: (state()) -> state()). diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl index 742944dc..e81f9e55 100644 --- a/src/rabbit_exchange_type.erl +++ b/src/rabbit_exchange_type.erl @@ -33,6 +33,29 @@ -export([behaviour_info/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(behaviour_info/1 :: + (_) -> + 'undefined' | + [{'add_binding' | + 'assert_args_equivalence' | + 'create' | + 'delete' | + 'description' | + 'recover' | + 'remove_bindings' | + 'route' | + 'validate', + 0 | 1 | 2}, + ...]). + +-endif. + +%%---------------------------------------------------------------------------- + behaviour_info(callbacks) -> [ {description, 0}, diff --git a/src/rabbit_exchange_type_registry.erl b/src/rabbit_exchange_type_registry.erl index f15275b5..690d0d2d 100644 --- a/src/rabbit_exchange_type_registry.erl +++ b/src/rabbit_exchange_type_registry.erl @@ -45,7 +45,6 @@ -ifdef(use_specs). --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). -spec(register/2 :: (binary(), atom()) -> 'ok'). -spec(binary_to_type/1 :: (binary()) -> atom() | rabbit_types:error('not_found')). diff --git a/src/rabbit_framing_channel.erl b/src/rabbit_framing_channel.erl index cb53185f..bb0152e9 100644 --- a/src/rabbit_framing_channel.erl +++ b/src/rabbit_framing_channel.erl @@ -37,6 +37,17 @@ %% internal -export([mainloop/3]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(mainloop/3 :: (_,_,_) -> any()). +-spec(process/2 :: (atom() | pid() | port() | {atom(),atom()},_) -> 'ok'). +-spec(shutdown/1 :: (atom() | pid() | port() | {atom(),atom()}) -> 'ok'). +-spec(start_link/3 :: (_,_,_) -> {'ok',pid()}). + +-endif. + %%-------------------------------------------------------------------- start_link(Parent, ChannelPid, Protocol) -> diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl index e7d0c101..8ac55367 100644 --- a/src/rabbit_guid.erl +++ b/src/rabbit_guid.erl @@ -52,7 +52,6 @@ -type(guid() :: binary()). --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). -spec(guid/0 :: () -> guid()). -spec(string_guid/1 :: (any()) -> string()). -spec(binstring_guid/1 :: (any()) -> binary()). diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index be1dcad1..74bd100f 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -41,6 +41,17 @@ %%---------------------------------------------------------------------------- +-record(lim, {prefetch_count = 0, + ch_pid, + blocked = false, + queues = dict:new(), % QPid -> {MonitorRef, Notify} + volume = 0}). +%% 'Notify' is a boolean that indicates whether a queue should be +%% notified of a change in the limit or volume that may allow it to +%% deliver more messages via the limiter's channel. + +%%---------------------------------------------------------------------------- + -ifdef(use_specs). -type(maybe_pid() :: pid() | 'undefined'). @@ -59,17 +70,6 @@ -endif. -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = dict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - %%---------------------------------------------------------------------------- %% API %%---------------------------------------------------------------------------- diff --git a/src/rabbit_log.erl b/src/rabbit_log.erl index 863f77e7..1aa4adc9 100644 --- a/src/rabbit_log.erl +++ b/src/rabbit_log.erl @@ -50,7 +50,6 @@ -ifdef(use_specs). --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). -spec(debug/1 :: (string()) -> 'ok'). -spec(debug/2 :: (string(), [any()]) -> 'ok'). -spec(info/1 :: (string()) -> 'ok'). @@ -60,6 +59,8 @@ -spec(error/1 :: (string()) -> 'ok'). -spec(error/2 :: (string(), [any()]) -> 'ok'). +-spec(message/4 :: (_,_,_,_) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl index f87b6271..851d7692 100644 --- a/src/rabbit_memory_monitor.erl +++ b/src/rabbit_memory_monitor.erl @@ -86,7 +86,6 @@ -ifdef(use_specs). --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). -spec(update/0 :: () -> 'ok'). -spec(register/2 :: (pid(), {atom(),atom(),[any()]}) -> 'ok'). -spec(deregister/1 :: (pid()) -> 'ok'). diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 8de2f0d6..1cb1bfc4 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -69,6 +69,20 @@ -spec(empty_ram_only_tables/0 :: () -> 'ok'). -spec(create_tables/0 :: () -> 'ok'). +-spec(table_names/0 :: + () -> + ['rabbit_durable_exchange' | + 'rabbit_durable_queue' | + 'rabbit_durable_route' | + 'rabbit_exchange' | + 'rabbit_listener' | + 'rabbit_queue' | + 'rabbit_reverse_route' | + 'rabbit_route' | + 'rabbit_user' | + 'rabbit_user_permission' | + 'rabbit_vhost']). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_msg_store_gc.erl b/src/rabbit_msg_store_gc.erl index cd9fd497..2235edd6 100644 --- a/src/rabbit_msg_store_gc.erl +++ b/src/rabbit_msg_store_gc.erl @@ -57,7 +57,6 @@ rabbit_msg_store:file_num()) -> 'ok'). -spec(delete/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). -spec(no_readers/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(stop/1 :: (pid()) -> 'ok'). -spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). -endif. diff --git a/src/rabbit_msg_store_index.erl b/src/rabbit_msg_store_index.erl index 0ed64a9d..6447d260 100644 --- a/src/rabbit_msg_store_index.erl +++ b/src/rabbit_msg_store_index.erl @@ -33,6 +33,29 @@ -export([behaviour_info/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(behaviour_info/1 :: + (_) -> + 'undefined' | + [{'delete' | + 'delete_by_file' | + 'insert' | + 'lookup' | + 'new' | + 'recover' | + 'terminate' | + 'update' | + 'update_fields', + 1 | 2 | 3}, + ...]). + +-endif. + +%%---------------------------------------------------------------------------- + behaviour_info(callbacks) -> [{new, 1}, {recover, 1}, diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index 03a9b386..9a3f470b 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -87,6 +87,28 @@ -spec(check_tcp_listener_address/3 :: (atom(), hostname(), ip_port()) -> {inet:ip_address(), atom()}). +-spec(boot/0 :: () -> 'ok'). +-spec(start_client/1 :: + (port() | #ssl_socket{ssl::{'sslsocket',_,_}}) -> + atom() | pid() | port() | {atom(),atom()}). +-spec(start_ssl_client/2 :: + (_,port() | #ssl_socket{ssl::{'sslsocket',_,_}}) -> + atom() | pid() | port() | {atom(),atom()}). +-spec(tcp_listener_started/3 :: + (_, + string() | + {byte(),byte(),byte(),byte()} | + {char(),char(),char(),char(),char(),char(),char(),char()}, + _) -> + 'ok'). +-spec(tcp_listener_stopped/3 :: + (_, + string() | + {byte(),byte(),byte(),byte()} | + {char(),char(),char(),char(),char(),char(),char(),char()}, + _) -> + 'ok'). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl index f3013a16..ab9e8295 100644 --- a/src/rabbit_node_monitor.erl +++ b/src/rabbit_node_monitor.erl @@ -40,7 +40,7 @@ -define(SERVER, ?MODULE). -%%-------------------------------------------------------------------- +%%---------------------------------------------------------------------------- start_link() -> gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). diff --git a/src/rabbit_queue_collector.erl b/src/rabbit_queue_collector.erl index 6ac402c8..e14bf6af 100644 --- a/src/rabbit_queue_collector.erl +++ b/src/rabbit_queue_collector.erl @@ -46,7 +46,6 @@ -ifdef(use_specs). --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). -spec(register/2 :: (pid(), rabbit_types:amqqueue()) -> 'ok'). -spec(delete_all/1 :: (pid()) -> 'ok'). diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 28d0b47d..a8fbc62b 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -202,12 +202,10 @@ A}). -type(shutdown_terms() :: [any()]). --spec(init/1 :: (rabbit_amqqueue:name()) -> qistate()). -spec(shutdown_terms/1 :: (rabbit_amqqueue:name()) -> shutdown_terms()). -spec(recover/4 :: (rabbit_amqqueue:name(), shutdown_terms(), boolean(), fun ((rabbit_guid:guid()) -> boolean())) -> {'undefined' | non_neg_integer(), qistate()}). --spec(terminate/2 :: ([any()], qistate()) -> qistate()). -spec(delete_and_terminate/1 :: (qistate()) -> qistate()). -spec(publish/5 :: (rabbit_guid:guid(), seq_id(), rabbit_types:message_properties(), boolean(), qistate()) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 127467bb..2d9a8f6c 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -185,6 +185,22 @@ rabbit_types:ok_or_error2( rabbit_networking:socket(), any()))) -> no_return()). +-spec(analyze_frame/3 :: + (_,_,_) -> + 'error' | + 'heartbeat' | + {'content_body',_} | + {'method',_,binary()} | + {'content_header', + char(), + char(), + non_neg_integer(), + binary()}). +-spec(mainloop/2 :: (_,#v1{}) -> any()). +-spec(system_code_change/4 :: (_,_,_,_) -> {'ok',_}). +-spec(system_continue/3 :: (_,_,#v1{}) -> any()). +-spec(system_terminate/4 :: (_,_,_,_) -> none()). + -endif. %%-------------------------------------------------------------------------- diff --git a/src/rabbit_restartable_sup.erl b/src/rabbit_restartable_sup.erl index 06d59249..4f079251 100644 --- a/src/rabbit_restartable_sup.erl +++ b/src/rabbit_restartable_sup.erl @@ -39,6 +39,17 @@ -include("rabbit.hrl"). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_link/2 :: + (atom(),{_,_,_}) -> 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + +%%---------------------------------------------------------------------------- + start_link(Name, {_M, _F, _A} = Fun) -> supervisor:start_link({local, Name}, ?MODULE, [Fun]). diff --git a/src/rabbit_sup.erl b/src/rabbit_sup.erl index 97613d17..6998ca36 100644 --- a/src/rabbit_sup.erl +++ b/src/rabbit_sup.erl @@ -42,6 +42,22 @@ -define(SERVER, ?MODULE). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_child/1 :: (atom() | tuple()) -> 'ok'). +-spec(start_child/2 :: (atom() | tuple(),[any()]) -> 'ok'). +-spec(start_child/3 :: (_,atom() | tuple(),[any()]) -> 'ok'). +-spec(start_restartable_child/1 :: (atom()) -> 'ok'). +-spec(start_restartable_child/2 :: (atom(),_) -> 'ok'). +-spec(stop_child/1 :: + (_) -> 'ok' | {'error','not_found' | 'running' | 'simple_one_for_one'}). + +-endif. + +%%---------------------------------------------------------------------------- + start_link() -> supervisor:start_link({local, ?SERVER}, ?MODULE, []). diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 71b23e01..2e1aa942 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -44,6 +44,234 @@ -define(PERSISTENT_MSG_STORE, msg_store_persistent). -define(TRANSIENT_MSG_STORE, msg_store_transient). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(add_log_handlers/1 :: ([any()]) -> 'ok'). +-spec(all_tests/0 :: () -> 'passed'). +-spec(assert_prop/3 :: ([any()],_,_) -> any()). +-spec(assert_props/2 :: (_,[any()]) -> [any()]). +-spec(await_response/1 :: (non_neg_integer()) -> 'ok'). +-spec(bpqueue_mff/4 :: + (fun((_,_,_,_) -> any()),_,{_,_},_) -> {[{_,[any()]}],_}). +-spec(bpqueue_mffl/3 :: (_,{_,_},_) -> {[{_,[any()]}],_}). +-spec(bpqueue_mffr/3 :: (_,{_,_},_) -> {[{_,[any()]}],_}). +-spec(bpqueue_test/5 :: + (fun((_,_,_) -> any()), + fun((_) -> any()), + fun((_) -> any()), + fun((_,_,_) -> any()), + fun((_,_,_,_) -> any())) -> + {_,_}). +-spec(check_get_options/3 :: ({_,[any()]},[any()],_) -> 'ok'). +-spec(check_pg_local/3 :: ('ok',[any()],[any()]) -> ['true',...]). +-spec(check_variable_queue_status/2 :: + (_,[any()]) -> + {'vqstate', + queue(), + {_,_}, + _, + {_,_}, + queue(), + _, + dict(), + _, + _, + {'sync',_,_,_,[any()]}, + _, + _, + _, + _, + _, + _, + _, + _, + _, + _, + _, + {'rates',_,_,_,_,_}}). +-spec(clean_logs/2 :: ([atom() | [atom() | [any()] | char()]],_) -> 'ok'). +-spec(control_action/2 :: (_,_) -> any()). +-spec(control_action/3 :: (_,_,_) -> any()). +-spec(control_action/4 :: (_,_,_,_) -> any()). +-spec(default_options/0 :: + () -> + [{[45 | 112 | 113,...], + [47 | 97 | 101 | 102 | 108 | 115,...]}, + ...]). +-spec(delete_file/1 :: + (atom() | [atom() | [any()] | char()]) -> 'ok' | {'error',atom()}). +-spec(delete_log_handlers/1 :: ([atom()]) -> 'ok'). +-spec(empty_files/1 :: ([atom() | [any()]]) -> [boolean() | {'error',atom()}]). +-spec(empty_test_queue/0 :: () -> 'ok'). +-spec(expand_options/2 :: ([any()],_) -> any()). +-spec(foreach_with_msg_store_client/4 :: (_,_,_,[any()]) -> 'ok'). +-spec(guid_bin/1 :: (_) -> binary()). +-spec(info_action/3 :: (_,[any()],_) -> 'ok'). +-spec(init_test_queue/0 :: + () -> {'undefined' | number(),{'qistate',_,_,_,_,_}}). +-spec(make_files_non_writable/1 :: ([atom() | [any()]]) -> 'ok'). +-spec(make_responder/1 :: (_) -> fun(() -> any())). +-spec(make_responder/2 :: (_,_) -> fun(() -> any())). +-spec(maybe_run_cluster_dependent_tests/0 :: () -> 'passed'). +-spec(msg_store_contains/3 :: (_,[any()],_) -> any()). +-spec(msg_store_read/2 :: ([any()],_) -> any()). +-spec(msg_store_remove/2 :: (_,_) -> 'ok'). +-spec(msg_store_remove/3 :: (_,_,_) -> 'ok'). +-spec(msg_store_sync/2 :: + (_, + {'client_msstate',atom() | pid() | {atom(),_},_,_,_,_,_,_,_,_,_,_}) -> + 'ok'). +-spec(msg_store_write/2 :: ([any()],_) -> 'ok'). +-spec(must_exit/1 :: (_) -> 'ok'). +-spec(non_empty_files/1 :: + ([atom() | [any()]]) -> [boolean() | {'error',atom()}]). +-spec(priority_queue_in_all/2 :: (_,[any()]) -> any()). +-spec(priority_queue_out_all/1 :: + ({'pqueue',nonempty_maybe_improper_list()} | + {'queue',maybe_improper_list(),maybe_improper_list()}) -> + [any()]). +-spec(publish_fetch_and_ack/3 :: (non_neg_integer(),_,_) -> any()). +-spec(queue_index_publish/3 :: + ([any()],boolean(),_) -> {_,maybe_improper_list()}). +-spec(queue_name/1 :: (binary()) -> #resource{name::binary()}). +-spec(restart_msg_store_empty/0 :: () -> 'ok'). +-spec(restart_test_queue/1 :: + ({'qistate',_,{dict(),[any()]},_,_,_}) -> + {'undefined' | number(), + {'qistate',_,_,_,_,_}}). +-spec(run_cluster_dependent_tests/1 :: (atom()) -> 'passed'). +-spec(sequence_with_content/1 :: ([any()]) -> any()). +-spec(set_permissions/2 :: (atom() | [any()],_) -> 'ok' | {'error',atom()}). +-spec(spawn_responders/3 :: (_,_,integer()) -> [pid()]). +-spec(test_app_management/0 :: () -> 'passed'). +-spec(test_backing_queue/0 :: () -> 'passed'). +-spec(test_bpqueue/0 :: () -> 'passed'). +-spec(test_cluster_management/0 :: () -> 'passed'). +-spec(test_cluster_management2/1 :: (atom()) -> 'passed'). +-spec(test_content_framing/0 :: () -> 'passed'). +-spec(test_content_framing/2 :: (number(),binary() | tuple()) -> 'passed'). +-spec(test_content_prop_roundtrip/2 :: ([tuple()],binary()) -> binary()). +-spec(test_content_properties/0 :: () -> 'passed'). +-spec(test_content_transcoding/0 :: () -> 'passed'). +-spec(test_delegates_async/1 :: (atom()) -> 'passed'). +-spec(test_delegates_sync/1 :: (atom()) -> 'passed'). +-spec(test_dropwhile/1 :: + (_) -> {_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_}). +-spec(test_field_values/0 :: () -> 'passed'). +-spec(test_file_handle_cache/0 :: () -> 'passed'). +-spec(test_log_management/0 :: () -> 'passed'). +-spec(test_log_management_during_startup/0 :: () -> 'passed'). +-spec(test_logs_working/2 :: (atom() | [any()],atom() | [any()]) -> 'ok'). +-spec(test_msg_store/0 :: () -> 'passed'). +-spec(test_option_parser/0 :: () -> 'passed'). +-spec(test_parsing/0 :: () -> 'passed'). +-spec(test_pg_local/0 :: () -> 'passed'). +-spec(test_priority_queue/0 :: () -> 'passed'). +-spec(test_priority_queue/1 :: ({'pqueue',[any(),...]} | {'queue',[any()],[any()]}) -> {'false',boolean(),number(),[{number(),_}],[any()]} | {'true',boolean(),number(),[{number(),_}],[any()]}). +-spec(test_queue/0 :: () -> #resource{name::binary()}). +-spec(test_queue_index/0 :: () -> 'passed'). +-spec(test_queue_index_props/0 :: () -> 'passed'). +-spec(test_queue_recover/0 :: () -> 'passed'). +-spec(test_server_status/0 :: () -> 'passed'). +-spec(test_simple_n_element_queue/1 :: (integer()) -> 'passed'). +-spec(test_spawn/1 :: (_) -> {pid(),pid()}). +-spec(test_statistics/0 :: () -> 'passed'). +-spec(test_statistics_event_receiver/1 :: + (atom() | pid() | port() | {atom(),atom()}) -> no_return()). +-spec(test_statistics_receive_event/2 :: + (atom() | pid() | {atom(),_},fun((_) -> any())) -> any()). +-spec(test_statistics_receive_event1/2 :: (_,fun((_) -> any())) -> any()). +-spec(test_statistics_receiver/1 :: (_) -> 'ok'). +-spec(test_supervisor_delayed_restart/0 :: () -> 'passed'). +-spec(test_topic_match/2 :: + (maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | []), + maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | [])) -> + 'passed' | + {'topic_match_failure', + maybe_improper_list( + binary() | + maybe_improper_list( + any(), + binary() | []) | + byte(), + binary() | + []), + maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | [])}). +-spec(test_topic_match/3 :: + (maybe_improper_list( + binary() | + maybe_improper_list( + any(), + binary() | []) | + byte(), + binary() | []), + maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | []), + _) -> + 'passed' | + {'topic_match_failure', + maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | []), + maybe_improper_list( + binary() | + maybe_improper_list(any(),binary() | []) | + byte(), + binary() | [])}). +-spec(test_topic_matching/0 :: () -> 'passed'). +-spec(test_unfold/0 :: () -> 'passed'). +-spec(test_user_management/0 :: () -> 'passed'). +-spec(test_variable_queue/0 :: () -> 'passed'). +-spec(test_variable_queue_all_the_bits_not_covered_elsewhere1/1 :: + (_) -> any()). +-spec(test_variable_queue_all_the_bits_not_covered_elsewhere2/1 :: + ({'vqstate',_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_, + {'rates',_,_,number(),number(),_}}) -> + {_,_,_, + _,_,_, + _,_,_, + _,_,_, + _,_,_, + _,_,_, + _,_,_, + _,_}). +-spec(test_variable_queue_dynamic_duration_change/1 :: + (_) -> {_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_}). +-spec(test_variable_queue_partial_segments_delta_thing/1 :: + (_) -> {_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_}). +-spec(variable_queue_fetch/5 :: + (integer(),_,_,_,_) -> {_,maybe_improper_list()}). +-spec(variable_queue_publish/3 :: (_,integer(),_) -> any()). +-spec(variable_queue_wait_for_shuffling_end/1 :: (_) -> any()). +-spec(verify_read_with_published/4 :: (_,_,_,_) -> 'ko' | 'ok'). +-spec(with_empty_test_queue/1 :: + (fun((_) -> any())) -> {'qistate',_,'undefined','undefined',_,_}). +-spec(with_fresh_variable_queue/1 :: (fun((_) -> any())) -> 'passed'). +-spec(with_msg_store_client/3 :: (_,_,fun((_) -> any())) -> 'ok'). + +-endif. + +%%---------------------------------------------------------------------------- + test_content_prop_roundtrip(Datum, Binary) -> Types = [element(1, E) || E <- Datum], Values = [element(2, E) || E <- Datum], diff --git a/src/rabbit_tests_event_receiver.erl b/src/rabbit_tests_event_receiver.erl index a92e3da7..2d9ec850 100644 --- a/src/rabbit_tests_event_receiver.erl +++ b/src/rabbit_tests_event_receiver.erl @@ -36,6 +36,17 @@ -export([init/1, handle_call/2, handle_event/2, handle_info/2, terminate/2, code_change/3]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start/1 :: (_) -> any()). +-spec(stop/0 :: () -> any()). + +-endif. + +%%---------------------------------------------------------------------------- + start(Pid) -> gen_event:add_handler(rabbit_event, ?MODULE, [Pid]). diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl index aa986e54..7020e0b6 100644 --- a/src/rabbit_writer.erl +++ b/src/rabbit_writer.erl @@ -79,6 +79,9 @@ non_neg_integer(), rabbit_types:protocol()) -> 'ok'). +-spec(mainloop/2 :: (_,_) -> 'done'). +-spec(mainloop1/2 :: (_,_) -> any()). + -endif. %%---------------------------------------------------------------------------- diff --git a/src/supervisor2.erl b/src/supervisor2.erl index 93adfcb1..decb331b 100644 --- a/src/supervisor2.erl +++ b/src/supervisor2.erl @@ -100,6 +100,28 @@ -define(is_terminate_simple(State), State#state.strategy =:= simple_one_for_one_terminate). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(behaviour_info/1 :: (_) -> 'undefined' | [{'init',1},...]). +-spec(check_childspecs/1 :: (_) -> 'ok' | {'error',_}). +-spec(delayed_restart/2 :: (atom() | pid() | {atom(),_},_) -> 'ok'). +-spec(delete_child/2 :: (_,_) -> any()). +-spec(find_child/2 :: (_,_) -> [any()]). +-spec(restart_child/2 :: (_,_) -> any()). +-spec(start_child/2 :: (_,_) -> any()). +-spec(start_link/2 :: (_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_link/3 :: + ({'global',_} | {'local',atom()},_,_) -> + 'ignore' | {'error',_} | {'ok',pid()}). +-spec(terminate_child/2 :: (_,_) -> any()). +-spec(which_children/1 :: (_) -> any()). + +-endif. + +%%---------------------------------------------------------------------------- + behaviour_info(callbacks) -> [{init,1}]; behaviour_info(_Other) -> diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl index c9809ace..e8f036f8 100644 --- a/src/tcp_acceptor.erl +++ b/src/tcp_acceptor.erl @@ -40,6 +40,14 @@ -record(state, {callback, sock, ref}). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_link/2 :: (_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + %%-------------------------------------------------------------------- start_link(Callback, LSock) -> diff --git a/src/tcp_client_sup.erl b/src/tcp_client_sup.erl index 02d7e0e4..6dcf4a8e 100644 --- a/src/tcp_client_sup.erl +++ b/src/tcp_client_sup.erl @@ -37,6 +37,19 @@ -export([init/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_link/1 :: (_) -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_link/2 :: + ({'global',_} | {'local',atom()},_) -> + 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + +%%---------------------------------------------------------------------------- + start_link(Callback) -> supervisor2:start_link(?MODULE, Callback). diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl index 73ef9586..790b29f6 100644 --- a/src/tcp_listener.erl +++ b/src/tcp_listener.erl @@ -40,6 +40,15 @@ -record(state, {sock, on_startup, on_shutdown, label}). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_link/8 :: + (_,_,_,_,_,_,_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + %%-------------------------------------------------------------------- start_link(IPAddress, Port, SocketOpts, diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl index 493925ef..5c6c0193 100644 --- a/src/tcp_listener_sup.erl +++ b/src/tcp_listener_sup.erl @@ -37,6 +37,18 @@ -export([init/1]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_link/7 :: (_,_,_,_,_,_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). +-spec(start_link/8 :: + (_,_,_,_,_,_,_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). + +-endif. + +%%---------------------------------------------------------------------------- + start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, AcceptCallback, Label) -> start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, diff --git a/src/test_sup.erl b/src/test_sup.erl index f41793bc..d83edbf8 100644 --- a/src/test_sup.erl +++ b/src/test_sup.erl @@ -36,6 +36,17 @@ -export([test_supervisor_delayed_restart/0, init/1, start_child/0]). +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_child/0 :: () -> {'ok',pid()}). +-spec(test_supervisor_delayed_restart/0 :: () -> 'passed'). + +-endif. + +%%---------------------------------------------------------------------------- + test_supervisor_delayed_restart() -> passed = with_sup(simple_one_for_one_terminate, fun (SupPid) -> diff --git a/src/worker_pool.erl b/src/worker_pool.erl index 595884e0..071dda8c 100644 --- a/src/worker_pool.erl +++ b/src/worker_pool.erl @@ -50,13 +50,18 @@ %%---------------------------------------------------------------------------- +-record(state, { available, pending }). + +%%---------------------------------------------------------------------------- + -ifdef(use_specs). --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). -spec(submit/1 :: (fun (() -> A) | {atom(), atom(), [any()]}) -> A). -spec(submit_async/1 :: (fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). +-spec(idle/1 :: (_) -> 'ok'). + -endif. %%---------------------------------------------------------------------------- @@ -65,8 +70,6 @@ -define(HIBERNATE_AFTER_MIN, 1000). -define(DESIRED_HIBERNATE, 10000). --record(state, { available, pending }). - %%---------------------------------------------------------------------------- start_link() -> diff --git a/src/worker_pool_sup.erl b/src/worker_pool_sup.erl index 177a1453..3c5b8bf6 100644 --- a/src/worker_pool_sup.erl +++ b/src/worker_pool_sup.erl @@ -41,7 +41,6 @@ -ifdef(use_specs). --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). -spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). -endif. -- cgit v1.2.1 From ebaf3128f4a5a9e6eafeca3732e6ef13147bd7c9 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 18 Nov 2010 17:21:20 +0000 Subject: Allow people to run commands as non-root/rabbitmq if they have reconfigured stuff to allow this to happen. --- packaging/common/rabbitmq-script-wrapper | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/packaging/common/rabbitmq-script-wrapper b/packaging/common/rabbitmq-script-wrapper index 79096a4e..5519dd82 100644 --- a/packaging/common/rabbitmq-script-wrapper +++ b/packaging/common/rabbitmq-script-wrapper @@ -49,10 +49,13 @@ if [ `id -u` = 0 ] ; then elif [ `id -u` = `id -u rabbitmq` ] ; then /usr/lib/rabbitmq/bin/${SCRIPT} "$@" else - /usr/lib/rabbitmq/bin/${SCRIPT} - echo - echo "Only root or rabbitmq should run ${SCRIPT}" - echo - exit 1 + /usr/lib/rabbitmq/bin/${SCRIPT} "$@" + VAL=$? + if [ $VAL -gt 0 ] ; then + echo + echo "Only root or rabbitmq should run ${SCRIPT}" + echo + fi + exit $VAL fi -- cgit v1.2.1 From 81c34eee53198874b7833aebb3dc1e95c907d284 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Thu, 2 Dec 2010 10:05:29 +0000 Subject: fix to compile and run under R12B5 --- src/rabbit_amqqueue_process.erl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 3dbd2b22..f518c561 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -488,12 +488,12 @@ attempt_delivery(#delivery{txn = none, %% we don't need an expiry here because messages are %% not being enqueued, so we use an empty %% message_properties. + BP = ?BASE_MESSAGE_PROPERTIES, {AckTag, BQS1} = BQ:publish_delivered( AckRequired, Message, - ?BASE_MESSAGE_PROPERTIES - #message_properties{ - needs_confirming = NeedsConfirming}, + BP#message_properties{ + needs_confirming = NeedsConfirming}, BQS), {{Message, false, AckTag}, true, State1#q{backing_queue_state = BQS1}} -- cgit v1.2.1 From 008835085bd5427de436fe95f5f461933762e486 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 2 Dec 2010 15:40:25 -0800 Subject: Running "hg rm". --- src/delegate_sup.erl | 57 - src/gatherer.erl | 143 -- src/gen_server2.erl | 1232 ----------------- src/pg_local.erl | 214 --- src/rabbit.erl | 531 -------- src/rabbit_amqqueue.erl | 525 -------- src/rabbit_amqqueue_process.erl | 1049 --------------- src/rabbit_amqqueue_sup.erl | 63 - src/rabbit_backing_queue.erl | 154 --- src/rabbit_channel.erl | 1227 ----------------- src/rabbit_channel_sup_sup.erl | 62 - src/rabbit_connection_sup.erl | 98 -- src/rabbit_error_logger.erl | 99 -- src/rabbit_event.erl | 154 --- src/rabbit_exchange_type.erl | 88 -- src/rabbit_exchange_type_registry.erl | 130 -- src/rabbit_framing_channel.erl | 140 -- src/rabbit_guid.erl | 133 -- src/rabbit_limiter.erl | 249 ---- src/rabbit_log.erl | 151 --- src/rabbit_memory_monitor.erl | 293 ----- src/rabbit_mnesia.erl | 583 --------- src/rabbit_msg_store_index.erl | 70 - src/rabbit_networking.erl | 302 ----- src/rabbit_node_monitor.erl | 81 -- src/rabbit_queue_collector.erl | 106 -- src/rabbit_queue_index.erl | 972 -------------- src/rabbit_reader.erl | 956 -------------- src/rabbit_restartable_sup.erl | 58 - src/rabbit_sup.erl | 95 -- src/rabbit_tests.erl | 2331 --------------------------------- src/rabbit_tests_event_receiver.erl | 77 -- src/rabbit_writer.erl | 239 ---- src/supervisor2.erl | 1038 --------------- src/tcp_acceptor.erl | 129 -- src/tcp_client_sup.erl | 62 - src/tcp_listener.erl | 107 -- src/tcp_listener_sup.erl | 78 -- src/test_sup.erl | 105 -- src/worker_pool.erl | 158 --- src/worker_pool_sup.erl | 67 - 41 files changed, 14406 deletions(-) delete mode 100644 src/delegate_sup.erl delete mode 100644 src/gatherer.erl delete mode 100644 src/gen_server2.erl delete mode 100644 src/pg_local.erl delete mode 100644 src/rabbit.erl delete mode 100644 src/rabbit_amqqueue.erl delete mode 100644 src/rabbit_amqqueue_process.erl delete mode 100644 src/rabbit_amqqueue_sup.erl delete mode 100644 src/rabbit_backing_queue.erl delete mode 100644 src/rabbit_channel.erl delete mode 100644 src/rabbit_channel_sup_sup.erl delete mode 100644 src/rabbit_connection_sup.erl delete mode 100644 src/rabbit_error_logger.erl delete mode 100644 src/rabbit_event.erl delete mode 100644 src/rabbit_exchange_type.erl delete mode 100644 src/rabbit_exchange_type_registry.erl delete mode 100644 src/rabbit_framing_channel.erl delete mode 100644 src/rabbit_guid.erl delete mode 100644 src/rabbit_limiter.erl delete mode 100644 src/rabbit_log.erl delete mode 100644 src/rabbit_memory_monitor.erl delete mode 100644 src/rabbit_mnesia.erl delete mode 100644 src/rabbit_msg_store_index.erl delete mode 100644 src/rabbit_networking.erl delete mode 100644 src/rabbit_node_monitor.erl delete mode 100644 src/rabbit_queue_collector.erl delete mode 100644 src/rabbit_queue_index.erl delete mode 100644 src/rabbit_reader.erl delete mode 100644 src/rabbit_restartable_sup.erl delete mode 100644 src/rabbit_sup.erl delete mode 100644 src/rabbit_tests.erl delete mode 100644 src/rabbit_tests_event_receiver.erl delete mode 100644 src/rabbit_writer.erl delete mode 100644 src/supervisor2.erl delete mode 100644 src/tcp_acceptor.erl delete mode 100644 src/tcp_client_sup.erl delete mode 100644 src/tcp_listener.erl delete mode 100644 src/tcp_listener_sup.erl delete mode 100644 src/test_sup.erl delete mode 100644 src/worker_pool.erl delete mode 100644 src/worker_pool_sup.erl diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl deleted file mode 100644 index cb084428..00000000 --- a/src/delegate_sup.erl +++ /dev/null @@ -1,57 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(delegate_sup). - --behaviour(supervisor). - --export([start_link/0]). - --export([init/1]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -%%---------------------------------------------------------------------------- - -init(_Args) -> - {ok, {{one_for_one, 10, 10}, specs(incoming) ++ specs(outgoing)}}. - -specs(Prefix) -> - [{{Prefix, Hash}, {delegate, start_link, [Prefix, Hash]}, - transient, 16#ffffffff, worker, [delegate]} || - Hash <- lists:seq(0, delegate:process_count() - 1)]. - -%%---------------------------------------------------------------------------- diff --git a/src/gatherer.erl b/src/gatherer.erl deleted file mode 100644 index 6f0ba049..00000000 --- a/src/gatherer.erl +++ /dev/null @@ -1,143 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(gatherer). - --behaviour(gen_server2). - --export([start_link/0, stop/1, fork/1, finish/1, in/2, out/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --record(gstate, { forks, values, blocked }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(fork/1 :: (pid()) -> 'ok'). --spec(finish/1 :: (pid()) -> 'ok'). --spec(in/2 :: (pid(), any()) -> 'ok'). --spec(out/1 :: (pid()) -> {'value', any()} | 'empty'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link(?MODULE, [], [{timeout, infinity}]). - -stop(Pid) -> - gen_server2:call(Pid, stop, infinity). - -fork(Pid) -> - gen_server2:call(Pid, fork, infinity). - -finish(Pid) -> - gen_server2:cast(Pid, finish). - -in(Pid, Value) -> - gen_server2:cast(Pid, {in, Value}). - -out(Pid) -> - gen_server2:call(Pid, out, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #gstate { forks = 0, values = queue:new(), blocked = queue:new() }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; - -handle_call(fork, _From, State = #gstate { forks = Forks }) -> - {reply, ok, State #gstate { forks = Forks + 1 }, hibernate}; - -handle_call(out, From, State = #gstate { forks = Forks, - values = Values, - blocked = Blocked }) -> - case queue:out(Values) of - {empty, _} -> - case Forks of - 0 -> {reply, empty, State, hibernate}; - _ -> {noreply, - State #gstate { blocked = queue:in(From, Blocked) }, - hibernate} - end; - {{value, _Value} = V, NewValues} -> - {reply, V, State #gstate { values = NewValues }, hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast(finish, State = #gstate { forks = Forks, blocked = Blocked }) -> - NewForks = Forks - 1, - NewBlocked = case NewForks of - 0 -> [gen_server2:reply(From, empty) || - From <- queue:to_list(Blocked)], - queue:new(); - _ -> Blocked - end, - {noreply, State #gstate { forks = NewForks, blocked = NewBlocked }, - hibernate}; - -handle_cast({in, Value}, State = #gstate { values = Values, - blocked = Blocked }) -> - {noreply, case queue:out(Blocked) of - {empty, _} -> - State #gstate { values = queue:in(Value, Values) }; - {{value, From}, NewBlocked} -> - gen_server2:reply(From, {value, Value}), - State #gstate { blocked = NewBlocked } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. diff --git a/src/gen_server2.erl b/src/gen_server2.erl deleted file mode 100644 index 2921fff8..00000000 --- a/src/gen_server2.erl +++ /dev/null @@ -1,1232 +0,0 @@ -%% This file is a copy of gen_server.erl from the R13B-1 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is gen_server2 -%% -%% 2) more efficient handling of selective receives in callbacks -%% gen_server2 processes drain their message queue into an internal -%% buffer before invoking any callback module functions. Messages are -%% dequeued from the buffer for processing. Thus the effective message -%% queue of a gen_server2 process is the concatenation of the internal -%% buffer and the real message queue. -%% As a result of the draining, any selective receive invoked inside a -%% callback is less likely to have to scan a large message queue. -%% -%% 3) gen_server2:cast is guaranteed to be order-preserving -%% The original code could reorder messages when communicating with a -%% process on a remote node that was not currently connected. -%% -%% 4) The callback module can optionally implement prioritise_call/3, -%% prioritise_cast/2 and prioritise_info/2. These functions take -%% Message, From and State or just Message and State and return a -%% single integer representing the priority attached to the message. -%% Messages with higher priorities are processed before requests with -%% lower priorities. The default priority is 0. -%% -%% 5) The callback module can optionally implement -%% handle_pre_hibernate/1 and handle_post_hibernate/1. These will be -%% called immediately prior to and post hibernation, respectively. If -%% handle_pre_hibernate returns {hibernate, NewState} then the process -%% will hibernate. If the module does not implement -%% handle_pre_hibernate/1 then the default action is to hibernate. -%% -%% 6) init can return a 4th arg, {backoff, InitialTimeout, -%% MinimumTimeout, DesiredHibernatePeriod} (all in -%% milliseconds). Then, on all callbacks which can return a timeout -%% (including init), timeout can be 'hibernate'. When this is the -%% case, the current timeout value will be used (initially, the -%% InitialTimeout supplied from init). After this timeout has -%% occurred, hibernation will occur as normal. Upon awaking, a new -%% current timeout value will be calculated. -%% -%% The purpose is that the gen_server2 takes care of adjusting the -%% current timeout value such that the process will increase the -%% timeout value repeatedly if it is unable to sleep for the -%% DesiredHibernatePeriod. If it is able to sleep for the -%% DesiredHibernatePeriod it will decrease the current timeout down to -%% the MinimumTimeout, so that the process is put to sleep sooner (and -%% hopefully stays asleep for longer). In short, should a process -%% using this receive a burst of messages, it should not hibernate -%% between those messages, but as the messages become less frequent, -%% the process will not only hibernate, it will do so sooner after -%% each message. -%% -%% When using this backoff mechanism, normal timeout values (i.e. not -%% 'hibernate') can still be used, and if they are used then the -%% handle_info(timeout, State) will be called as normal. In this case, -%% returning 'hibernate' from handle_info(timeout, State) will not -%% hibernate the process immediately, as it would if backoff wasn't -%% being used. Instead it'll wait for the current timeout as described -%% above. - -%% All modifications are (C) 2009-2010 LShift Ltd. - -%% ``The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved via the world wide web at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. -%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings -%% AB. All Rights Reserved.'' -%% -%% $Id$ -%% --module(gen_server2). - -%%% --------------------------------------------------- -%%% -%%% The idea behind THIS server is that the user module -%%% provides (different) functions to handle different -%%% kind of inputs. -%%% If the Parent process terminates the Module:terminate/2 -%%% function is called. -%%% -%%% The user module should export: -%%% -%%% init(Args) -%%% ==> {ok, State} -%%% {ok, State, Timeout} -%%% {ok, State, Timeout, Backoff} -%%% ignore -%%% {stop, Reason} -%%% -%%% handle_call(Msg, {From, Tag}, State) -%%% -%%% ==> {reply, Reply, State} -%%% {reply, Reply, State, Timeout} -%%% {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, Reply, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_cast(Msg, State) -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_info(Info, State) Info is e.g. {'EXIT', P, R}, {nodedown, N}, ... -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% terminate(Reason, State) Let the user module clean up -%%% always called when server terminates -%%% -%%% ==> ok -%%% -%%% handle_pre_hibernate(State) -%%% -%%% ==> {hibernate, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% handle_post_hibernate(State) -%%% -%%% ==> {noreply, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% The work flow (of the server) can be described as follows: -%%% -%%% User module Generic -%%% ----------- ------- -%%% start -----> start -%%% init <----- . -%%% -%%% loop -%%% handle_call <----- . -%%% -----> reply -%%% -%%% handle_cast <----- . -%%% -%%% handle_info <----- . -%%% -%%% terminate <----- . -%%% -%%% -----> reply -%%% -%%% -%%% --------------------------------------------------- - -%% API --export([start/3, start/4, - start_link/3, start_link/4, - call/2, call/3, - cast/2, reply/2, - abcast/2, abcast/3, - multi_call/2, multi_call/3, multi_call/4, - enter_loop/3, enter_loop/4, enter_loop/5, enter_loop/6, wake_hib/1]). - --export([behaviour_info/1]). - -%% System exports --export([system_continue/3, - system_terminate/4, - system_code_change/4, - format_status/2]). - -%% Internal exports --export([init_it/6, print_event/3]). - --import(error_logger, [format/2]). - -%% State record --record(gs2_state, {parent, name, state, mod, time, - timeout_state, queue, debug, prioritise_call, - prioritise_cast, prioritise_info}). - -%%%========================================================================= -%%% Specs. These exist only to shut up dialyzer's warnings -%%%========================================================================= - --ifdef(use_specs). - --spec(handle_common_termination/3 :: - (any(), atom(), #gs2_state{}) -> no_return()). - --spec(hibernate/1 :: (#gs2_state{}) -> no_return()). - --spec(abcast/2 :: (atom(),_) -> 'abcast'). --spec(abcast/3 :: ([atom()],atom(),_) -> 'abcast'). --spec(behaviour_info/1 :: (_) -> - 'undefined' | - [{'code_change' | - 'handle_call' | - 'handle_cast' | - 'handle_info' | - 'init' | - 'terminate', - 1 | 2 | 3},...]). --spec(call/2 :: (_,_) -> any()). --spec(call/3 :: (_,_,_) -> any()). --spec(cast/2 :: (atom() | pid() | {atom(),_},_) -> 'ok'). --spec(enter_loop/3 :: (atom(),maybe_improper_list(),_) -> any()). --spec(enter_loop/4 :: (atom(),maybe_improper_list(),_,_) -> any()). --spec(enter_loop/5 :: (atom(), - maybe_improper_list(), - _, - pid() | {'global',_} | {'local',atom()}, - _) -> - any()). --spec(enter_loop/6 :: (atom(), - maybe_improper_list(), - _, - pid() | {'global',_} | {'local',atom()}, - _, - 'undefined' | {'backoff',_,_,_}) -> - any()). --spec(format_status/2 :: (_,[any(),...]) -> nonempty_maybe_improper_list()). --spec(init_it/6 :: (pid(),_,_,atom(),_,maybe_improper_list()) -> any()). --spec(multi_call/2 :: (atom(),_) -> any()). --spec(multi_call/3 :: (maybe_improper_list(),atom(),_) -> any()). --spec(multi_call/4 :: (_,_,_,'infinity' | non_neg_integer()) -> any()). --spec(print_event/3 :: (atom() | pid(),_,_) -> 'ok'). --spec(reply/2 :: ({_,_},_) -> any()). --spec(start/3 :: (atom() | tuple(), - _, - [{'debug', - ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | - {'spawn_opt',['link' | {_,_}]} | - {'timeout','infinity' | non_neg_integer()}]) -> - 'ignore' | {'error',_} | {'ok',pid()}). --spec(start/4 :: ({'global',_} | {'local',atom()}, - atom() | tuple(), - _, - [{'debug', - ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | - {'spawn_opt', ['link' | {_,_}]} | - {'timeout','infinity' | non_neg_integer()}]) -> - 'ignore' | {'error',_} | {'ok',pid()}). --spec(start_link/3 :: (atom() | tuple(), - _, - [{'debug', - ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | - {'spawn_opt',['link' | {_,_}]} | - {'timeout','infinity' | non_neg_integer()}]) -> - 'ignore' | {'error',_} | {'ok',pid()}). --spec(start_link/4 :: ({'global',_} | {'local',atom()}, - atom() | tuple(), - _, - [{'debug', - ['debug' | 'log' | 'statistics' | 'trace' | {_,_}]} | - {'spawn_opt',['link' | {_,_}]} | - {'timeout','infinity' | non_neg_integer()}]) -> - 'ignore' | {'error',_} | {'ok',pid()}). --spec(system_code_change/4 :: (#gs2_state{},_,_,_) -> any()). --spec(system_continue/3 :: (_,_,#gs2_state{}) -> any()). --spec(wake_hib/1 :: (#gs2_state{timeout_state::'undefined' | - {{non_neg_integer(), - non_neg_integer(), - non_neg_integer()}, - {'backoff', - integer(), - number(), - number(), - {_,_,_}}}}) -> - any()). - --endif. - -%%%========================================================================= -%%% API -%%%========================================================================= - -behaviour_info(callbacks) -> - [{init,1},{handle_call,3},{handle_cast,2},{handle_info,2}, - {terminate,2},{code_change,3}]; -behaviour_info(_Other) -> - undefined. - -%%% ----------------------------------------------------------------- -%%% Starts a generic server. -%%% start(Mod, Args, Options) -%%% start(Name, Mod, Args, Options) -%%% start_link(Mod, Args, Options) -%%% start_link(Name, Mod, Args, Options) where: -%%% Name ::= {local, atom()} | {global, atom()} -%%% Mod ::= atom(), callback module implementing the 'real' server -%%% Args ::= term(), init arguments (to Mod:init/1) -%%% Options ::= [{timeout, Timeout} | {debug, [Flag]}] -%%% Flag ::= trace | log | {logfile, File} | statistics | debug -%%% (debug == log && statistics) -%%% Returns: {ok, Pid} | -%%% {error, {already_started, Pid}} | -%%% {error, Reason} -%%% ----------------------------------------------------------------- -start(Mod, Args, Options) -> - gen:start(?MODULE, nolink, Mod, Args, Options). - -start(Name, Mod, Args, Options) -> - gen:start(?MODULE, nolink, Name, Mod, Args, Options). - -start_link(Mod, Args, Options) -> - gen:start(?MODULE, link, Mod, Args, Options). - -start_link(Name, Mod, Args, Options) -> - gen:start(?MODULE, link, Name, Mod, Args, Options). - - -%% ----------------------------------------------------------------- -%% Make a call to a generic server. -%% If the server is located at another node, that node will -%% be monitored. -%% If the client is trapping exits and is linked server termination -%% is handled here (? Shall we do that here (or rely on timeouts) ?). -%% ----------------------------------------------------------------- -call(Name, Request) -> - case catch gen:call(Name, '$gen_call', Request) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request]}}) - end. - -call(Name, Request, Timeout) -> - case catch gen:call(Name, '$gen_call', Request, Timeout) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request, Timeout]}}) - end. - -%% ----------------------------------------------------------------- -%% Make a cast to a generic server. -%% ----------------------------------------------------------------- -cast({global,Name}, Request) -> - catch global:send(Name, cast_msg(Request)), - ok; -cast({Name,Node}=Dest, Request) when is_atom(Name), is_atom(Node) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_atom(Dest) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_pid(Dest) -> - do_cast(Dest, Request). - -do_cast(Dest, Request) -> - do_send(Dest, cast_msg(Request)), - ok. - -cast_msg(Request) -> {'$gen_cast',Request}. - -%% ----------------------------------------------------------------- -%% Send a reply to the client. -%% ----------------------------------------------------------------- -reply({To, Tag}, Reply) -> - catch To ! {Tag, Reply}. - -%% ----------------------------------------------------------------- -%% Asyncronous broadcast, returns nothing, it's just send'n pray -%% ----------------------------------------------------------------- -abcast(Name, Request) when is_atom(Name) -> - do_abcast([node() | nodes()], Name, cast_msg(Request)). - -abcast(Nodes, Name, Request) when is_list(Nodes), is_atom(Name) -> - do_abcast(Nodes, Name, cast_msg(Request)). - -do_abcast([Node|Nodes], Name, Msg) when is_atom(Node) -> - do_send({Name,Node},Msg), - do_abcast(Nodes, Name, Msg); -do_abcast([], _,_) -> abcast. - -%%% ----------------------------------------------------------------- -%%% Make a call to servers at several nodes. -%%% Returns: {[Replies],[BadNodes]} -%%% A Timeout can be given -%%% -%%% A middleman process is used in case late answers arrives after -%%% the timeout. If they would be allowed to glog the callers message -%%% queue, it would probably become confused. Late answers will -%%% now arrive to the terminated middleman and so be discarded. -%%% ----------------------------------------------------------------- -multi_call(Name, Req) - when is_atom(Name) -> - do_multi_call([node() | nodes()], Name, Req, infinity). - -multi_call(Nodes, Name, Req) - when is_list(Nodes), is_atom(Name) -> - do_multi_call(Nodes, Name, Req, infinity). - -multi_call(Nodes, Name, Req, infinity) -> - do_multi_call(Nodes, Name, Req, infinity); -multi_call(Nodes, Name, Req, Timeout) - when is_list(Nodes), is_atom(Name), is_integer(Timeout), Timeout >= 0 -> - do_multi_call(Nodes, Name, Req, Timeout). - - -%%----------------------------------------------------------------- -%% enter_loop(Mod, Options, State, , , ) ->_ -%% -%% Description: Makes an existing process into a gen_server. -%% The calling process will enter the gen_server receive -%% loop and become a gen_server process. -%% The process *must* have been started using one of the -%% start functions in proc_lib, see proc_lib(3). -%% The user is responsible for any initialization of the -%% process, including registering a name for it. -%%----------------------------------------------------------------- -enter_loop(Mod, Options, State) -> - enter_loop(Mod, Options, State, self(), infinity, undefined). - -enter_loop(Mod, Options, State, Backoff = {backoff, _, _ , _}) -> - enter_loop(Mod, Options, State, self(), infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName = {_, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, undefined); - -enter_loop(Mod, Options, State, Timeout) -> - enter_loop(Mod, Options, State, self(), Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Backoff = {backoff, _, _, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName, Timeout) -> - enter_loop(Mod, Options, State, ServerName, Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Timeout, Backoff) -> - Name = get_proc_name(ServerName), - Parent = get_parent(), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - Backoff1 = extend_backoff(Backoff), - loop(find_prioritisers( - #gs2_state { parent = Parent, name = Name, state = State, - mod = Mod, time = Timeout, timeout_state = Backoff1, - queue = Queue, debug = Debug })). - -%%%======================================================================== -%%% Gen-callback functions -%%%======================================================================== - -%%% --------------------------------------------------- -%%% Initiate the new process. -%%% Register the name using the Rfunc function -%%% Calls the Mod:init/Args function. -%%% Finally an acknowledge is sent to Parent and the main -%%% loop is entered. -%%% --------------------------------------------------- -init_it(Starter, self, Name, Mod, Args, Options) -> - init_it(Starter, self(), Name, Mod, Args, Options); -init_it(Starter, Parent, Name0, Mod, Args, Options) -> - Name = name(Name0), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - GS2State = find_prioritisers( - #gs2_state { parent = Parent, - name = Name, - mod = Mod, - queue = Queue, - debug = Debug }), - case catch Mod:init(Args) of - {ok, State} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = infinity, - timeout_state = undefined }); - {ok, State, Timeout} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = undefined }); - {ok, State, Timeout, Backoff = {backoff, _, _, _}} -> - Backoff1 = extend_backoff(Backoff), - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = Backoff1 }); - {stop, Reason} -> - %% For consistency, we must make sure that the - %% registered name (if any) is unregistered before - %% the parent process is notified about the failure. - %% (Otherwise, the parent process could get - %% an 'already_started' error if it immediately - %% tried starting the process again.) - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - ignore -> - unregister_name(Name0), - proc_lib:init_ack(Starter, ignore), - exit(normal); - {'EXIT', Reason} -> - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - Else -> - Error = {bad_return_value, Else}, - proc_lib:init_ack(Starter, {error, Error}), - exit(Error) - end. - -name({local,Name}) -> Name; -name({global,Name}) -> Name; -%% name(Pid) when is_pid(Pid) -> Pid; -%% when R12 goes away, drop the line beneath and uncomment the line above -name(Name) -> Name. - -unregister_name({local,Name}) -> - _ = (catch unregister(Name)); -unregister_name({global,Name}) -> - _ = global:unregister_name(Name); -unregister_name(Pid) when is_pid(Pid) -> - Pid; -% Under R12 let's just ignore it, as we have a single term as Name. -% On R13 it will never get here, as we get tuple with 'local/global' atom. -unregister_name(_Name) -> ok. - -extend_backoff(undefined) -> - undefined; -extend_backoff({backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod}) -> - {backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod, now()}. - -%%%======================================================================== -%%% Internal functions -%%%======================================================================== -%%% --------------------------------------------------- -%%% The MAIN loop. -%%% --------------------------------------------------- -loop(GS2State = #gs2_state { time = hibernate, - timeout_state = undefined }) -> - pre_hibernate(GS2State); -loop(GS2State) -> - process_next_msg(drain(GS2State)). - -drain(GS2State) -> - receive - Input -> drain(in(Input, GS2State)) - after 0 -> GS2State - end. - -process_next_msg(GS2State = #gs2_state { time = Time, - timeout_state = TimeoutState, - queue = Queue }) -> - case priority_queue:out(Queue) of - {{value, Msg}, Queue1} -> - process_msg(Msg, GS2State #gs2_state { queue = Queue1 }); - {empty, Queue1} -> - {Time1, HibOnTimeout} - = case {Time, TimeoutState} of - {hibernate, {backoff, Current, _Min, _Desired, _RSt}} -> - {Current, true}; - {hibernate, _} -> - %% wake_hib/7 will set Time to hibernate. If - %% we were woken and didn't receive a msg - %% then we will get here and need a sensible - %% value for Time1, otherwise we crash. - %% R13B1 always waits infinitely when waking - %% from hibernation, so that's what we do - %% here too. - {infinity, false}; - _ -> {Time, false} - end, - receive - Input -> - %% Time could be 'hibernate' here, so *don't* call loop - process_next_msg( - drain(in(Input, GS2State #gs2_state { queue = Queue1 }))) - after Time1 -> - case HibOnTimeout of - true -> - pre_hibernate( - GS2State #gs2_state { queue = Queue1 }); - false -> - process_msg(timeout, - GS2State #gs2_state { queue = Queue1 }) - end - end - end. - -wake_hib(GS2State = #gs2_state { timeout_state = TS }) -> - TimeoutState1 = case TS of - undefined -> - undefined; - {SleptAt, TimeoutState} -> - adjust_timeout_state(SleptAt, now(), TimeoutState) - end, - post_hibernate( - drain(GS2State #gs2_state { timeout_state = TimeoutState1 })). - -hibernate(GS2State = #gs2_state { timeout_state = TimeoutState }) -> - TS = case TimeoutState of - undefined -> undefined; - {backoff, _, _, _, _} -> {now(), TimeoutState} - end, - proc_lib:hibernate(?MODULE, wake_hib, - [GS2State #gs2_state { timeout_state = TS }]). - -pre_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_pre_hibernate, 1) of - true -> - case catch Mod:handle_pre_hibernate(State) of - {hibernate, NState} -> - hibernate(GS2State #gs2_state { state = NState } ); - Reply -> - handle_common_termination(Reply, pre_hibernate, GS2State) - end; - false -> - hibernate(GS2State) - end. - -post_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_post_hibernate, 1) of - true -> - case catch Mod:handle_post_hibernate(State) of - {noreply, NState} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = infinity }); - {noreply, NState, Time} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = Time }); - Reply -> - handle_common_termination(Reply, post_hibernate, GS2State) - end; - false -> - %% use hibernate here, not infinity. This matches - %% R13B. The key is that we should be able to get through - %% to process_msg calling sys:handle_system_msg with Time - %% still set to hibernate, iff that msg is the very msg - %% that woke us up (or the first msg we receive after - %% waking up). - process_next_msg(GS2State #gs2_state { time = hibernate }) - end. - -adjust_timeout_state(SleptAt, AwokeAt, {backoff, CurrentTO, MinimumTO, - DesiredHibPeriod, RandomState}) -> - NapLengthMicros = timer:now_diff(AwokeAt, SleptAt), - CurrentMicros = CurrentTO * 1000, - MinimumMicros = MinimumTO * 1000, - DesiredHibMicros = DesiredHibPeriod * 1000, - GapBetweenMessagesMicros = NapLengthMicros + CurrentMicros, - Base = - %% If enough time has passed between the last two messages then we - %% should consider sleeping sooner. Otherwise stay awake longer. - case GapBetweenMessagesMicros > (MinimumMicros + DesiredHibMicros) of - true -> lists:max([MinimumTO, CurrentTO div 2]); - false -> CurrentTO - end, - {Extra, RandomState1} = random:uniform_s(Base, RandomState), - CurrentTO1 = Base + Extra, - {backoff, CurrentTO1, MinimumTO, DesiredHibPeriod, RandomState1}. - -in({'$gen_cast', Msg}, GS2State = #gs2_state { prioritise_cast = PC, - queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - {'$gen_cast', Msg}, - PC(Msg, GS2State), Queue) }; -in({'$gen_call', From, Msg}, GS2State = #gs2_state { prioritise_call = PC, - queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - {'$gen_call', From, Msg}, - PC(Msg, From, GS2State), Queue) }; -in(Input, GS2State = #gs2_state { prioritise_info = PI, queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - Input, PI(Input, GS2State), Queue) }. - -process_msg(Msg, - GS2State = #gs2_state { parent = Parent, - name = Name, - debug = Debug }) -> - case Msg of - {system, From, Req} -> - sys:handle_system_msg( - Req, From, Parent, ?MODULE, Debug, - GS2State); - %% gen_server puts Hib on the end as the 7th arg, but that - %% version of the function seems not to be documented so - %% leaving out for now. - {'EXIT', Parent, Reason} -> - terminate(Reason, Msg, GS2State); - _Msg when Debug =:= [] -> - handle_msg(Msg, GS2State); - _Msg -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, - Name, {in, Msg}), - handle_msg(Msg, GS2State #gs2_state { debug = Debug1 }) - end. - -%%% --------------------------------------------------- -%%% Send/recive functions -%%% --------------------------------------------------- -do_send(Dest, Msg) -> - catch erlang:send(Dest, Msg). - -do_multi_call(Nodes, Name, Req, infinity) -> - Tag = make_ref(), - Monitors = send_nodes(Nodes, Name, Tag, Req), - rec_nodes(Tag, Monitors, Name, undefined); -do_multi_call(Nodes, Name, Req, Timeout) -> - Tag = make_ref(), - Caller = self(), - Receiver = - spawn( - fun () -> - %% Middleman process. Should be unsensitive to regular - %% exit signals. The sychronization is needed in case - %% the receiver would exit before the caller started - %% the monitor. - process_flag(trap_exit, true), - Mref = erlang:monitor(process, Caller), - receive - {Caller,Tag} -> - Monitors = send_nodes(Nodes, Name, Tag, Req), - TimerId = erlang:start_timer(Timeout, self(), ok), - Result = rec_nodes(Tag, Monitors, Name, TimerId), - exit({self(),Tag,Result}); - {'DOWN',Mref,_,_,_} -> - %% Caller died before sending us the go-ahead. - %% Give up silently. - exit(normal) - end - end), - Mref = erlang:monitor(process, Receiver), - Receiver ! {self(),Tag}, - receive - {'DOWN',Mref,_,_,{Receiver,Tag,Result}} -> - Result; - {'DOWN',Mref,_,_,Reason} -> - %% The middleman code failed. Or someone did - %% exit(_, kill) on the middleman process => Reason==killed - exit(Reason) - end. - -send_nodes(Nodes, Name, Tag, Req) -> - send_nodes(Nodes, Name, Tag, Req, []). - -send_nodes([Node|Tail], Name, Tag, Req, Monitors) - when is_atom(Node) -> - Monitor = start_monitor(Node, Name), - %% Handle non-existing names in rec_nodes. - catch {Name, Node} ! {'$gen_call', {self(), {Tag, Node}}, Req}, - send_nodes(Tail, Name, Tag, Req, [Monitor | Monitors]); -send_nodes([_Node|Tail], Name, Tag, Req, Monitors) -> - %% Skip non-atom Node - send_nodes(Tail, Name, Tag, Req, Monitors); -send_nodes([], _Name, _Tag, _Req, Monitors) -> - Monitors. - -%% Against old nodes: -%% If no reply has been delivered within 2 secs. (per node) check that -%% the server really exists and wait for ever for the answer. -%% -%% Against contemporary nodes: -%% Wait for reply, server 'DOWN', or timeout from TimerId. - -rec_nodes(Tag, Nodes, Name, TimerId) -> - rec_nodes(Tag, Nodes, Name, [], [], 2000, TimerId). - -rec_nodes(Tag, [{N,R}|Tail], Name, Badnodes, Replies, Time, TimerId ) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, Time, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], Time, TimerId); - {timeout, TimerId, _} -> - unmonitor(R), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes(Tag, [N|Tail], Name, Badnodes, Replies, Time, TimerId) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, 2000, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], 2000, TimerId); - {timeout, TimerId, _} -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N | Badnodes], Replies) - after Time -> - case rpc:call(N, erlang, whereis, [Name]) of - Pid when is_pid(Pid) -> % It exists try again. - rec_nodes(Tag, [N|Tail], Name, Badnodes, - Replies, infinity, TimerId); - _ -> % badnode - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], - Replies, 2000, TimerId) - end - end; -rec_nodes(_, [], _, Badnodes, Replies, _, TimerId) -> - case catch erlang:cancel_timer(TimerId) of - false -> % It has already sent it's message - receive - {timeout, TimerId, _} -> ok - after 0 -> - ok - end; - _ -> % Timer was cancelled, or TimerId was 'undefined' - ok - end, - {Replies, Badnodes}. - -%% Collect all replies that already have arrived -rec_nodes_rest(Tag, [{N,R}|Tail], Name, Badnodes, Replies) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(Tag, [N|Tail], Name, Badnodes, Replies) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(_Tag, [], _Name, Badnodes, Replies) -> - {Replies, Badnodes}. - - -%%% --------------------------------------------------- -%%% Monitor functions -%%% --------------------------------------------------- - -start_monitor(Node, Name) when is_atom(Node), is_atom(Name) -> - if node() =:= nonode@nohost, Node =/= nonode@nohost -> - Ref = make_ref(), - self() ! {'DOWN', Ref, process, {Name, Node}, noconnection}, - {Node, Ref}; - true -> - case catch erlang:monitor(process, {Name, Node}) of - {'EXIT', _} -> - %% Remote node is R6 - monitor_node(Node, true), - Node; - Ref when is_reference(Ref) -> - {Node, Ref} - end - end. - -%% Cancels a monitor started with Ref=erlang:monitor(_, _). -unmonitor(Ref) when is_reference(Ref) -> - erlang:demonitor(Ref), - receive - {'DOWN', Ref, _, _, _} -> - true - after 0 -> - true - end. - -%%% --------------------------------------------------- -%%% Message handling functions -%%% --------------------------------------------------- - -dispatch({'$gen_cast', Msg}, Mod, State) -> - Mod:handle_cast(Msg, State); -dispatch(Info, Mod, State) -> - Mod:handle_info(Info, State). - -common_reply(_Name, From, Reply, _NState, [] = _Debug) -> - reply(From, Reply), - []; -common_reply(Name, From, Reply, NState, Debug) -> - reply(Name, From, Reply, NState, Debug). - -common_debug([] = _Debug, _Func, _Info, _Event) -> - []; -common_debug(Debug, Func, Info, Event) -> - sys:handle_debug(Debug, Func, Info, Event). - -handle_msg({'$gen_call', From, Msg}, GS2State = #gs2_state { mod = Mod, - state = State, - name = Name, - debug = Debug }) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {reply, Reply, NState, Time1} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1}); - {noreply, NState} -> - Debug1 = common_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = infinity, - debug = Debug1}); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = Time1, - debug = Debug1}); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Msg, - GS2State #gs2_state { state = NState })), - reply(Name, From, Reply, NState, Debug), - exit(R); - Other -> - handle_common_reply(Other, Msg, GS2State) - end; -handle_msg(Msg, GS2State = #gs2_state { mod = Mod, state = State }) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, Msg, GS2State). - -handle_common_reply(Reply, Msg, GS2State = #gs2_state { name = Name, - debug = Debug}) -> - case Reply of - {noreply, NState} -> - Debug1 = common_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, {?MODULE, print_event}, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1 }); - _ -> - handle_common_termination(Reply, Msg, GS2State) - end. - -handle_common_termination(Reply, Msg, GS2State) -> - case Reply of - {stop, Reason, NState} -> - terminate(Reason, Msg, GS2State #gs2_state { state = NState }); - {'EXIT', What} -> - terminate(What, Msg, GS2State); - _ -> - terminate({bad_return_value, Reply}, Msg, GS2State) - end. - -reply(Name, {To, Tag}, Reply, State, Debug) -> - reply({To, Tag}, Reply), - sys:handle_debug( - Debug, {?MODULE, print_event}, Name, {out, Reply, To, State}). - - -%%----------------------------------------------------------------- -%% Callback functions for system messages handling. -%%----------------------------------------------------------------- -system_continue(Parent, Debug, GS2State) -> - loop(GS2State #gs2_state { parent = Parent, debug = Debug }). - --ifdef(use_specs). --spec system_terminate(_, _, _, [_]) -> no_return(). --endif. - -system_terminate(Reason, _Parent, Debug, GS2State) -> - terminate(Reason, [], GS2State #gs2_state { debug = Debug }). - -system_code_change(GS2State = #gs2_state { mod = Mod, - state = State }, - _Module, OldVsn, Extra) -> - case catch Mod:code_change(OldVsn, State, Extra) of - {ok, NewState} -> - NewGS2State = find_prioritisers( - GS2State #gs2_state { state = NewState }), - {ok, [NewGS2State]}; - Else -> - Else - end. - -%%----------------------------------------------------------------- -%% Format debug messages. Print them as the call-back module sees -%% them, not as the real erlang messages. Use trace for that. -%%----------------------------------------------------------------- -print_event(Dev, {in, Msg}, Name) -> - case Msg of - {'$gen_call', {From, _Tag}, Call} -> - io:format(Dev, "*DBG* ~p got call ~p from ~w~n", - [Name, Call, From]); - {'$gen_cast', Cast} -> - io:format(Dev, "*DBG* ~p got cast ~p~n", - [Name, Cast]); - _ -> - io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg]) - end; -print_event(Dev, {out, Msg, To, State}, Name) -> - io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n", - [Name, Msg, To, State]); -print_event(Dev, {noreply, State}, Name) -> - io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]); -print_event(Dev, Event, Name) -> - io:format(Dev, "*DBG* ~p dbg ~p~n", [Name, Event]). - - -%%% --------------------------------------------------- -%%% Terminate the server. -%%% --------------------------------------------------- - -terminate(Reason, Msg, #gs2_state { name = Name, - mod = Mod, - state = State, - debug = Debug }) -> - case catch Mod:terminate(Reason, State) of - {'EXIT', R} -> - error_info(R, Reason, Name, Msg, State, Debug), - exit(R); - _ -> - case Reason of - normal -> - exit(normal); - shutdown -> - exit(shutdown); - {shutdown,_}=Shutdown -> - exit(Shutdown); - _ -> - error_info(Reason, undefined, Name, Msg, State, Debug), - exit(Reason) - end - end. - -error_info(_Reason, _RootCause, application_controller, _Msg, _State, _Debug) -> - %% OTP-5811 Don't send an error report if it's the system process - %% application_controller which is terminating - let init take care - %% of it instead - ok; -error_info(Reason, RootCause, Name, Msg, State, Debug) -> - Reason1 = error_reason(Reason), - Fmt = - "** Generic server ~p terminating~n" - "** Last message in was ~p~n" - "** When Server state == ~p~n" - "** Reason for termination == ~n** ~p~n", - case RootCause of - undefined -> format(Fmt, [Name, Msg, State, Reason1]); - _ -> format(Fmt ++ "** In 'terminate' callback " - "with reason ==~n** ~p~n", - [Name, Msg, State, Reason1, - error_reason(RootCause)]) - end, - sys:print_log(Debug), - ok. - -error_reason({undef,[{M,F,A}|MFAs]} = Reason) -> - case code:is_loaded(M) of - false -> {'module could not be loaded',[{M,F,A}|MFAs]}; - _ -> case erlang:function_exported(M, F, length(A)) of - true -> Reason; - false -> {'function not exported',[{M,F,A}|MFAs]} - end - end; -error_reason(Reason) -> - Reason. - -%%% --------------------------------------------------- -%%% Misc. functions. -%%% --------------------------------------------------- - -opt(Op, [{Op, Value}|_]) -> - {ok, Value}; -opt(Op, [_|Options]) -> - opt(Op, Options); -opt(_, []) -> - false. - -debug_options(Name, Opts) -> - case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) - end. - -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). - -dbg_opts(Name, Opts) -> - case catch sys:debug_options(Opts) of - {'EXIT',_} -> - format("~p: ignoring erroneous debug options - ~p~n", - [Name, Opts]), - []; - Dbg -> - Dbg - end. - -get_proc_name(Pid) when is_pid(Pid) -> - Pid; -get_proc_name({local, Name}) -> - case process_info(self(), registered_name) of - {registered_name, Name} -> - Name; - {registered_name, _Name} -> - exit(process_not_registered); - [] -> - exit(process_not_registered) - end; -get_proc_name({global, Name}) -> - case global:safe_whereis_name(Name) of - undefined -> - exit(process_not_registered_globally); - Pid when Pid =:= self() -> - Name; - _Pid -> - exit(process_not_registered_globally) - end. - -get_parent() -> - case get('$ancestors') of - [Parent | _] when is_pid(Parent)-> - Parent; - [Parent | _] when is_atom(Parent)-> - name_to_pid(Parent); - _ -> - exit(process_was_not_started_by_proc_lib) - end. - -name_to_pid(Name) -> - case whereis(Name) of - undefined -> - case global:safe_whereis_name(Name) of - undefined -> - exit(could_not_find_registerd_name); - Pid -> - Pid - end; - Pid -> - Pid - end. - -find_prioritisers(GS2State = #gs2_state { mod = Mod }) -> - PrioriCall = function_exported_or_default( - Mod, 'prioritise_call', 3, - fun (_Msg, _From, _State) -> 0 end), - PrioriCast = function_exported_or_default(Mod, 'prioritise_cast', 2, - fun (_Msg, _State) -> 0 end), - PrioriInfo = function_exported_or_default(Mod, 'prioritise_info', 2, - fun (_Msg, _State) -> 0 end), - GS2State #gs2_state { prioritise_call = PrioriCall, - prioritise_cast = PrioriCast, - prioritise_info = PrioriInfo }. - -function_exported_or_default(Mod, Fun, Arity, Default) -> - case erlang:function_exported(Mod, Fun, Arity) of - true -> case Arity of - 2 -> fun (Msg, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end; - 3 -> fun (Msg, From, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, From, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end - end; - false -> Default - end. - -%%----------------------------------------------------------------- -%% Status information -%%----------------------------------------------------------------- -format_status(Opt, StatusData) -> - [PDict, SysState, Parent, Debug, - #gs2_state{name = Name, state = State, mod = Mod, queue = Queue}] = - StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), - Log = sys:get_debug(log, Debug, []), - Specfic = - case erlang:function_exported(Mod, format_status, 2) of - true -> case catch Mod:format_status(Opt, [PDict, State]) of - {'EXIT', _} -> [{data, [{"State", State}]}]; - Else -> Else - end; - _ -> [{data, [{"State", State}]}] - end, - [{header, Header}, - {data, [{"Status", SysState}, - {"Parent", Parent}, - {"Logged events", Log}, - {"Queued messages", priority_queue:to_list(Queue)}]} | - Specfic]. diff --git a/src/pg_local.erl b/src/pg_local.erl deleted file mode 100644 index afd5c6d9..00000000 --- a/src/pg_local.erl +++ /dev/null @@ -1,214 +0,0 @@ -%% This file is a copy of pg2.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) Process groups are node-local only. -%% -%% 2) Groups are created/deleted implicitly. -%% -%% 3) 'join' and 'leave' are asynchronous. -%% -%% 4) the type specs of the exported non-callback functions have been -%% extracted into a separate, guarded section, and rewritten in -%% old-style spec syntax, for better compatibility with older -%% versions of Erlang/OTP. The remaining type specs have been -%% removed. - -%% All modifications are (C) 2010 LShift Ltd. - -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(pg_local). - --export([join/2, leave/2, get_members/1]). --export([sync/0]). %% intended for testing only; not part of official API --export([start/0, start_link/0, init/1, handle_call/3, handle_cast/2, - handle_info/2, terminate/2]). - -%%---------------------------------------------------------------------------- - --record(state, {}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(name() :: term()). - --spec(start/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(join/2 :: (name(), pid()) -> 'ok'). --spec(leave/2 :: (name(), pid()) -> 'ok'). --spec(get_members/1 :: (name()) -> [pid()]). - --spec(sync/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%%% As of R13B03 monitors are used instead of links. - -%%% -%%% Exported functions -%%% - -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). - -start() -> - ensure_started(). - -join(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {join, Name, Pid}). - -leave(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {leave, Name, Pid}). - -get_members(Name) -> - ensure_started(), - group_members(Name). - -sync() -> - ensure_started(), - gen_server:call(?MODULE, sync). - -%%% -%%% Callback functions from gen_server -%%% - -init([]) -> - pg_local_table = ets:new(pg_local_table, [ordered_set, protected, named_table]), - {ok, #state{}}. - -handle_call(sync, _From, S) -> - {reply, ok, S}; - -handle_call(Request, From, S) -> - error_logger:warning_msg("The pg_local server received an unexpected message:\n" - "handle_call(~p, ~p, _)\n", - [Request, From]), - {noreply, S}. - -handle_cast({join, Name, Pid}, S) -> - join_group(Name, Pid), - {noreply, S}; -handle_cast({leave, Name, Pid}, S) -> - leave_group(Name, Pid), - {noreply, S}; -handle_cast(_, S) -> - {noreply, S}. - -handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S) -> - member_died(MonitorRef), - {noreply, S}; -handle_info(_, S) -> - {noreply, S}. - -terminate(_Reason, _S) -> - true = ets:delete(pg_local_table), - ok. - -%%% -%%% Local functions -%%% - -%%% One ETS table, pg_local_table, is used for bookkeeping. The type of the -%%% table is ordered_set, and the fast matching of partially -%%% instantiated keys is used extensively. -%%% -%%% {{ref, Pid}, MonitorRef, Counter} -%%% {{ref, MonitorRef}, Pid} -%%% Each process has one monitor. Counter is incremented when the -%%% Pid joins some group. -%%% {{member, Name, Pid}, _} -%%% Pid is a member of group Name, GroupCounter is incremented when the -%%% Pid joins the group Name. -%%% {{pid, Pid, Name}} -%%% Pid is a member of group Name. - -member_died(Ref) -> - [{{ref, Ref}, Pid}] = ets:lookup(pg_local_table, {ref, Ref}), - Names = member_groups(Pid), - _ = [leave_group(Name, P) || - Name <- Names, - P <- member_in_group(Pid, Name)], - ok. - -join_group(Name, Pid) -> - Ref_Pid = {ref, Pid}, - try _ = ets:update_counter(pg_local_table, Ref_Pid, {3, +1}) - catch _:_ -> - Ref = erlang:monitor(process, Pid), - true = ets:insert(pg_local_table, {Ref_Pid, Ref, 1}), - true = ets:insert(pg_local_table, {{ref, Ref}, Pid}) - end, - Member_Name_Pid = {member, Name, Pid}, - try _ = ets:update_counter(pg_local_table, Member_Name_Pid, {2, +1}) - catch _:_ -> - true = ets:insert(pg_local_table, {Member_Name_Pid, 1}), - true = ets:insert(pg_local_table, {{pid, Pid, Name}}) - end. - -leave_group(Name, Pid) -> - Member_Name_Pid = {member, Name, Pid}, - try ets:update_counter(pg_local_table, Member_Name_Pid, {2, -1}) of - N -> - if - N =:= 0 -> - true = ets:delete(pg_local_table, {pid, Pid, Name}), - true = ets:delete(pg_local_table, Member_Name_Pid); - true -> - ok - end, - Ref_Pid = {ref, Pid}, - case ets:update_counter(pg_local_table, Ref_Pid, {3, -1}) of - 0 -> - [{Ref_Pid,Ref,0}] = ets:lookup(pg_local_table, Ref_Pid), - true = ets:delete(pg_local_table, {ref, Ref}), - true = ets:delete(pg_local_table, Ref_Pid), - true = erlang:demonitor(Ref, [flush]), - ok; - _ -> - ok - end - catch _:_ -> - ok - end. - -group_members(Name) -> - [P || - [P, N] <- ets:match(pg_local_table, {{member, Name, '$1'},'$2'}), - _ <- lists:seq(1, N)]. - -member_in_group(Pid, Name) -> - [{{member, Name, Pid}, N}] = ets:lookup(pg_local_table, {member, Name, Pid}), - lists:duplicate(N, Pid). - -member_groups(Pid) -> - [Name || [Name] <- ets:match(pg_local_table, {{pid, Pid, '$1'}})]. - -ensure_started() -> - case whereis(?MODULE) of - undefined -> - C = {pg_local, {?MODULE, start_link, []}, permanent, - 16#ffffffff, worker, [?MODULE]}, - supervisor:start_child(kernel_safe_sup, C); - PgLocalPid -> - {ok, PgLocalPid} - end. diff --git a/src/rabbit.erl b/src/rabbit.erl deleted file mode 100644 index 24eb955e..00000000 --- a/src/rabbit.erl +++ /dev/null @@ -1,531 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit). - --behaviour(application). - --export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, - rotate_logs/1]). - --export([start/2, stop/1]). - --export([log_location/1]). - -%%--------------------------------------------------------------------------- -%% Boot steps. --export([maybe_insert_default_data/0]). - --rabbit_boot_step({codec_correctness_check, - [{description, "codec correctness check"}, - {mfa, {rabbit_binary_generator, - check_empty_content_body_frame_size, - []}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({database, - [{mfa, {rabbit_mnesia, init, []}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({file_handle_cache, - [{description, "file handle cache server"}, - {mfa, {rabbit_sup, start_restartable_child, - [file_handle_cache]}}, - {enables, worker_pool}]}). - --rabbit_boot_step({worker_pool, - [{description, "worker pool"}, - {mfa, {rabbit_sup, start_child, [worker_pool_sup]}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({external_infrastructure, - [{description, "external infrastructure ready"}]}). - --rabbit_boot_step({rabbit_exchange_type_registry, - [{description, "exchange type registry"}, - {mfa, {rabbit_sup, start_child, - [rabbit_exchange_type_registry]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_log, - [{description, "logging server"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_log]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_event, - [{description, "statistics event manager"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_event]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({kernel_ready, - [{description, "kernel ready"}, - {requires, external_infrastructure}]}). - --rabbit_boot_step({rabbit_alarm, - [{description, "alarm handler"}, - {mfa, {rabbit_alarm, start, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_memory_monitor, - [{description, "memory monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_memory_monitor]}}, - {requires, rabbit_alarm}, - {enables, core_initialized}]}). - --rabbit_boot_step({guid_generator, - [{description, "guid generator"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_guid]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({delegate_sup, - [{description, "cluster delegate"}, - {mfa, {rabbit_sup, start_child, - [delegate_sup]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_node_monitor, - [{description, "node monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_node_monitor]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({core_initialized, - [{description, "core initialized"}, - {requires, kernel_ready}]}). - --rabbit_boot_step({empty_db_check, - [{description, "empty DB check"}, - {mfa, {?MODULE, maybe_insert_default_data, []}}, - {requires, core_initialized}, - {enables, routing_ready}]}). - --rabbit_boot_step({exchange_recovery, - [{description, "exchange recovery"}, - {mfa, {rabbit_exchange, recover, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({queue_sup_queue_recovery, - [{description, "queue supervisor and queue recovery"}, - {mfa, {rabbit_amqqueue, start, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({routing_ready, - [{description, "message delivery logic ready"}, - {requires, core_initialized}]}). - --rabbit_boot_step({log_relay, - [{description, "error log relay"}, - {mfa, {rabbit_error_logger, boot, []}}, - {requires, routing_ready}, - {enables, networking}]}). - --rabbit_boot_step({networking, - [{mfa, {rabbit_networking, boot, []}}, - {requires, log_relay}, - {enables, networking_listening}]}). - --rabbit_boot_step({networking_listening, - [{description, "network listeners available"}]}). - -%%--------------------------------------------------------------------------- - --import(application). --import(mnesia). --import(lists). --import(inet). --import(gen_tcp). - --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --define(APPS, [os_mon, mnesia, rabbit]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(file_suffix() :: binary()). -%% this really should be an abstract type --type(log_location() :: 'tty' | 'undefined' | file:filename()). - --spec(prepare/0 :: () -> 'ok'). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_halt/0 :: () -> 'ok'). --spec(rotate_logs/1 :: (file_suffix()) -> rabbit_types:ok_or_error(any())). --spec(status/0 :: - () -> [{running_applications, [{atom(), string(), string()}]} | - {nodes, [{rabbit_mnesia:node_type(), [node()]}]} | - {running_nodes, [node()]}]). --spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). - --spec(maybe_insert_default_data/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -prepare() -> - ok = ensure_working_log_handlers(). - -start() -> - try - ok = prepare(), - ok = rabbit_misc:start_applications(?APPS) - after - %%give the error loggers some time to catch up - timer:sleep(100) - end. - -stop() -> - ok = rabbit_misc:stop_applications(?APPS). - -stop_and_halt() -> - try - stop() - after - init:stop() - end, - ok. - -status() -> - [{running_applications, application:which_applications()}] ++ - rabbit_mnesia:status(). - -rotate_logs(BinarySuffix) -> - Suffix = binary_to_list(BinarySuffix), - log_rotation_result(rotate_logs(log_location(kernel), - Suffix, - rabbit_error_logger_file_h), - rotate_logs(log_location(sasl), - Suffix, - rabbit_sasl_report_file_h)). - -%%-------------------------------------------------------------------- - -start(normal, []) -> - case erts_version_check() of - ok -> - {ok, SupPid} = rabbit_sup:start_link(), - - print_banner(), - [ok = run_boot_step(Step) || Step <- boot_steps()], - io:format("~nbroker running~n"), - - {ok, SupPid}; - Error -> - Error - end. - -stop(_State) -> - terminated_ok = error_logger:delete_report_handler(rabbit_error_logger), - ok = rabbit_alarm:stop(), - ok = case rabbit_mnesia:is_clustered() of - true -> rabbit_amqqueue:on_node_down(node()); - false -> rabbit_mnesia:empty_ram_only_tables() - end, - ok. - -%%--------------------------------------------------------------------------- - -erts_version_check() -> - FoundVer = erlang:system_info(version), - case rabbit_misc:version_compare(?ERTS_MINIMUM, FoundVer, lte) of - true -> ok; - false -> {error, {erlang_version_too_old, - {found, FoundVer}, {required, ?ERTS_MINIMUM}}} - end. - -boot_error(Format, Args) -> - io:format("BOOT ERROR: " ++ Format, Args), - error_logger:error_msg(Format, Args), - timer:sleep(1000), - exit({?MODULE, failure_during_boot}). - -run_boot_step({StepName, Attributes}) -> - Description = case lists:keysearch(description, 1, Attributes) of - {value, {_, D}} -> D; - false -> StepName - end, - case [MFA || {mfa, MFA} <- Attributes] of - [] -> - io:format("-- ~s~n", [Description]); - MFAs -> - io:format("starting ~-60s ...", [Description]), - [case catch apply(M,F,A) of - {'EXIT', Reason} -> - boot_error("FAILED~nReason: ~p~n", [Reason]); - ok -> - ok - end || {M,F,A} <- MFAs], - io:format("done~n"), - ok - end. - -module_attributes(Module) -> - case catch Module:module_info(attributes) of - {'EXIT', {undef, [{Module, module_info, _} | _]}} -> - io:format("WARNING: module ~p not found, so not scanned for boot steps.~n", - [Module]), - []; - {'EXIT', Reason} -> - exit(Reason); - V -> - V - end. - -boot_steps() -> - AllApps = [App || {App, _, _} <- application:loaded_applications()], - Modules = lists:usort( - lists:append([Modules - || {ok, Modules} <- - [application:get_key(App, modules) - || App <- AllApps]])), - UnsortedSteps = - lists:flatmap(fun (Module) -> - [{StepName, Attributes} - || {rabbit_boot_step, [{StepName, Attributes}]} - <- module_attributes(Module)] - end, Modules), - sort_boot_steps(UnsortedSteps). - -sort_boot_steps(UnsortedSteps) -> - G = digraph:new([acyclic]), - - %% Add vertices, with duplicate checking. - [case digraph:vertex(G, StepName) of - false -> digraph:add_vertex(G, StepName, Step); - _ -> boot_error("Duplicate boot step name: ~w~n", [StepName]) - end || Step = {StepName, _Attrs} <- UnsortedSteps], - - %% Add edges, detecting cycles and missing vertices. - lists:foreach(fun ({StepName, Attributes}) -> - [add_boot_step_dep(G, StepName, PrecedingStepName) - || {requires, PrecedingStepName} <- Attributes], - [add_boot_step_dep(G, SucceedingStepName, StepName) - || {enables, SucceedingStepName} <- Attributes] - end, UnsortedSteps), - - %% Use topological sort to find a consistent ordering (if there is - %% one, otherwise fail). - SortedStepsRev = [begin - {StepName, Step} = digraph:vertex(G, StepName), - Step - end || StepName <- digraph_utils:topsort(G)], - SortedSteps = lists:reverse(SortedStepsRev), - - digraph:delete(G), - - %% Check that all mentioned {M,F,A} triples are exported. - case [{StepName, {M,F,A}} - || {StepName, Attributes} <- SortedSteps, - {mfa, {M,F,A}} <- Attributes, - not erlang:function_exported(M, F, length(A))] of - [] -> SortedSteps; - MissingFunctions -> boot_error("Boot step functions not exported: ~p~n", - [MissingFunctions]) - end. - -add_boot_step_dep(G, RunsSecond, RunsFirst) -> - case digraph:add_edge(G, RunsSecond, RunsFirst) of - {error, Reason} -> - boot_error("Could not add boot step dependency of ~w on ~w:~n~s", - [RunsSecond, RunsFirst, - case Reason of - {bad_vertex, V} -> - io_lib:format("Boot step not registered: ~w~n", [V]); - {bad_edge, [First | Rest]} -> - [io_lib:format("Cyclic dependency: ~w", [First]), - [io_lib:format(" depends on ~w", [Next]) - || Next <- Rest], - io_lib:format(" depends on ~w~n", [First])] - end]); - _ -> - ok - end. - -%%--------------------------------------------------------------------------- - -log_location(Type) -> - case application:get_env(Type, case Type of - kernel -> error_logger; - sasl -> sasl_error_logger - end) of - {ok, {file, File}} -> File; - {ok, false} -> undefined; - {ok, tty} -> tty; - {ok, silent} -> undefined; - {ok, Bad} -> throw({error, {cannot_log_to_file, Bad}}); - _ -> undefined - end. - -app_location() -> - {ok, Application} = application:get_application(), - filename:absname(code:where_is_file(atom_to_list(Application) ++ ".app")). - -home_dir() -> - case init:get_argument(home) of - {ok, [[Home]]} -> Home; - Other -> Other - end. - -%--------------------------------------------------------------------------- - -print_banner() -> - {ok, Product} = application:get_key(id), - {ok, Version} = application:get_key(vsn), - ProductLen = string:len(Product), - io:format("~n" - "+---+ +---+~n" - "| | | |~n" - "| | | |~n" - "| | | |~n" - "| +---+ +-------+~n" - "| |~n" - "| ~s +---+ |~n" - "| | | |~n" - "| ~s +---+ |~n" - "| |~n" - "+-------------------+~n" - "~s~n~s~n~s~n~n", - [Product, string:right([$v|Version], ProductLen), - ?PROTOCOL_VERSION, - ?COPYRIGHT_MESSAGE, ?INFORMATION_MESSAGE]), - Settings = [{"node", node()}, - {"app descriptor", app_location()}, - {"home dir", home_dir()}, - {"cookie hash", rabbit_misc:cookie_hash()}, - {"log", log_location(kernel)}, - {"sasl log", log_location(sasl)}, - {"database dir", rabbit_mnesia:dir()}, - {"erlang version", erlang:system_info(version)}], - DescrLen = 1 + lists:max([length(K) || {K, _V} <- Settings]), - Format = "~-" ++ integer_to_list(DescrLen) ++ "s: ~s~n", - lists:foreach(fun ({K, V}) -> io:format(Format, [K, V]) end, Settings), - io:nl(). - -ensure_working_log_handlers() -> - Handlers = gen_event:which_handlers(error_logger), - ok = ensure_working_log_handler(error_logger_file_h, - rabbit_error_logger_file_h, - error_logger_tty_h, - log_location(kernel), - Handlers), - - ok = ensure_working_log_handler(sasl_report_file_h, - rabbit_sasl_report_file_h, - sasl_report_tty_h, - log_location(sasl), - Handlers), - ok. - -ensure_working_log_handler(OldFHandler, NewFHandler, TTYHandler, - LogLocation, Handlers) -> - case LogLocation of - undefined -> ok; - tty -> case lists:member(TTYHandler, Handlers) of - true -> ok; - false -> - throw({error, {cannot_log_to_tty, - TTYHandler, not_installed}}) - end; - _ -> case lists:member(NewFHandler, Handlers) of - true -> ok; - false -> case rotate_logs(LogLocation, "", - OldFHandler, NewFHandler) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_log_to_file, - LogLocation, Reason}}) - end - end - end. - -maybe_insert_default_data() -> - case rabbit_mnesia:is_db_empty() of - true -> insert_default_data(); - false -> ok - end. - -insert_default_data() -> - {ok, DefaultUser} = application:get_env(default_user), - {ok, DefaultPass} = application:get_env(default_pass), - {ok, DefaultAdmin} = application:get_env(default_user_is_admin), - {ok, DefaultVHost} = application:get_env(default_vhost), - {ok, [DefaultConfigurePerm, DefaultWritePerm, DefaultReadPerm]} = - application:get_env(default_permissions), - ok = rabbit_access_control:add_vhost(DefaultVHost), - ok = rabbit_access_control:add_user(DefaultUser, DefaultPass), - case DefaultAdmin of - true -> rabbit_access_control:set_admin(DefaultUser); - _ -> ok - end, - ok = rabbit_access_control:set_permissions(DefaultUser, DefaultVHost, - DefaultConfigurePerm, - DefaultWritePerm, - DefaultReadPerm), - ok. - -rotate_logs(File, Suffix, Handler) -> - rotate_logs(File, Suffix, Handler, Handler). - -rotate_logs(File, Suffix, OldHandler, NewHandler) -> - case File of - undefined -> ok; - tty -> ok; - _ -> gen_event:swap_handler( - error_logger, - {OldHandler, swap}, - {NewHandler, {File, Suffix}}) - end. - -log_rotation_result({error, MainLogError}, {error, SaslLogError}) -> - {error, {{cannot_rotate_main_logs, MainLogError}, - {cannot_rotate_sasl_logs, SaslLogError}}}; -log_rotation_result({error, MainLogError}, ok) -> - {error, {cannot_rotate_main_logs, MainLogError}}; -log_rotation_result(ok, {error, SaslLogError}) -> - {error, {cannot_rotate_sasl_logs, SaslLogError}}; -log_rotation_result(ok, ok) -> - ok. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl deleted file mode 100644 index 2d08ec62..00000000 --- a/src/rabbit_amqqueue.erl +++ /dev/null @@ -1,525 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_amqqueue). - --export([start/0, stop/0, declare/5, delete_immediately/1, delete/3, purge/1]). --export([internal_declare/2, internal_delete/1, - maybe_run_queue_via_backing_queue/2, - update_ram_duration/1, set_ram_duration_target/2, - set_maximum_since_use/2, maybe_expire/1, drop_expired/1]). --export([pseudo_queue/2]). --export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, - check_exclusive_access/2, with_exclusive_access_or_die/3, - stat/1, deliver/2, requeue/3, ack/4, reject/4]). --export([list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). --export([emit_stats/1]). --export([consumers/1, consumers_all/1]). --export([basic_get/3, basic_consume/7, basic_cancel/4]). --export([notify_sent/2, unblock/2, flush_all/2]). --export([commit_all/3, rollback_all/3, notify_down_all/2, limit_all/3]). --export([on_node_down/1]). - --import(mnesia). --import(gen_server2). --import(lists). --import(queue). - --include("rabbit.hrl"). --include_lib("stdlib/include/qlc.hrl"). - --define(INTEGER_ARG_TYPES, [byte, short, signedint, long]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, qmsg/0]). - --type(name() :: rabbit_types:r('queue')). - --type(qlen() :: rabbit_types:ok(non_neg_integer())). --type(qfun(A) :: fun ((rabbit_types:amqqueue()) -> A)). --type(qmsg() :: {name(), pid(), msg_id(), boolean(), rabbit_types:message()}). --type(msg_id() :: non_neg_integer()). --type(ok_or_errors() :: - 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). - --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(declare/5 :: - (name(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> {'new' | 'existing', rabbit_types:amqqueue()} | - rabbit_types:channel_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:amqqueue()) | - rabbit_types:error('not_found')). --spec(with/2 :: (name(), qfun(A)) -> A | rabbit_types:error('not_found')). --spec(with_or_die/2 :: - (name(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(assert_equivalence/5 :: - (rabbit_types:amqqueue(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> 'ok' | rabbit_types:channel_exit() | - rabbit_types:connection_exit()). --spec(check_exclusive_access/2 :: - (rabbit_types:amqqueue(), pid()) - -> 'ok' | rabbit_types:channel_exit()). --spec(with_exclusive_access_or_die/3 :: - (name(), pid(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:amqqueue()]). --spec(info_keys/0 :: () -> [rabbit_types:info_key()]). --spec(info/1 :: (rabbit_types:amqqueue()) -> [rabbit_types:info()]). --spec(info/2 :: - (rabbit_types:amqqueue(), [rabbit_types:info_key()]) - -> [rabbit_types:info()]). --spec(info_all/1 :: (rabbit_types:vhost()) -> [[rabbit_types:info()]]). --spec(info_all/2 :: (rabbit_types:vhost(), [rabbit_types:info_key()]) - -> [[rabbit_types:info()]]). --spec(consumers/1 :: - (rabbit_types:amqqueue()) - -> [{pid(), rabbit_types:ctag(), boolean()}]). --spec(consumers_all/1 :: - (rabbit_types:vhost()) - -> [{name(), pid(), rabbit_types:ctag(), boolean()}]). --spec(stat/1 :: - (rabbit_types:amqqueue()) - -> {'ok', non_neg_integer(), non_neg_integer()}). --spec(emit_stats/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete_immediately/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete/3 :: - (rabbit_types:amqqueue(), 'false', 'false') - -> qlen(); - (rabbit_types:amqqueue(), 'true' , 'false') - -> qlen() | rabbit_types:error('in_use'); - (rabbit_types:amqqueue(), 'false', 'true' ) - -> qlen() | rabbit_types:error('not_empty'); - (rabbit_types:amqqueue(), 'true' , 'true' ) - -> qlen() | - rabbit_types:error('in_use') | - rabbit_types:error('not_empty')). --spec(purge/1 :: (rabbit_types:amqqueue()) -> qlen()). --spec(deliver/2 :: (pid(), rabbit_types:delivery()) -> boolean()). --spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). --spec(ack/4 :: - (pid(), rabbit_types:maybe(rabbit_types:txn()), [msg_id()], pid()) - -> 'ok'). --spec(reject/4 :: (pid(), [msg_id()], boolean(), pid()) -> 'ok'). --spec(commit_all/3 :: ([pid()], rabbit_types:txn(), pid()) -> ok_or_errors()). --spec(rollback_all/3 :: ([pid()], rabbit_types:txn(), pid()) -> 'ok'). --spec(notify_down_all/2 :: ([pid()], pid()) -> ok_or_errors()). --spec(limit_all/3 :: ([pid()], pid(), pid() | 'undefined') -> ok_or_errors()). --spec(basic_get/3 :: (rabbit_types:amqqueue(), pid(), boolean()) -> - {'ok', non_neg_integer(), qmsg()} | 'empty'). --spec(basic_consume/7 :: - (rabbit_types:amqqueue(), boolean(), pid(), pid() | 'undefined', - rabbit_types:ctag(), boolean(), any()) - -> rabbit_types:ok_or_error('exclusive_consume_unavailable')). --spec(basic_cancel/4 :: - (rabbit_types:amqqueue(), pid(), rabbit_types:ctag(), any()) -> 'ok'). --spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(flush_all/2 :: ([pid()], pid()) -> 'ok'). --spec(internal_declare/2 :: - (rabbit_types:amqqueue(), boolean()) - -> rabbit_types:amqqueue() | 'not_found'). --spec(internal_delete/1 :: - (name()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit()). --spec(maybe_run_queue_via_backing_queue/2 :: - (pid(), (fun ((A) -> A))) -> 'ok'). --spec(update_ram_duration/1 :: (pid()) -> 'ok'). --spec(set_ram_duration_target/2 :: (pid(), number() | 'infinity') -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). --spec(maybe_expire/1 :: (pid()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(pseudo_queue/2 :: (binary(), pid()) -> rabbit_types:amqqueue()). - --spec(drop_expired/1 :: (atom() | pid() | {atom(),_}) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - DurableQueues = find_durable_queues(), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:start([QName || #amqqueue{name = QName} <- DurableQueues]), - {ok,_} = supervisor:start_child( - rabbit_sup, - {rabbit_amqqueue_sup, - {rabbit_amqqueue_sup, start_link, []}, - transient, infinity, supervisor, [rabbit_amqqueue_sup]}), - _RealDurableQueues = recover_durable_queues(DurableQueues), - ok. - -stop() -> - ok = supervisor:terminate_child(rabbit_sup, rabbit_amqqueue_sup), - ok = supervisor:delete_child(rabbit_sup, rabbit_amqqueue_sup), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:stop(). - -find_durable_queues() -> - Node = node(), - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end). - -recover_durable_queues(DurableQueues) -> - Qs = [start_queue_process(Q) || Q <- DurableQueues], - [Q || Q <- Qs, - gen_server2:call(Q#amqqueue.pid, {init, true}, infinity) == Q]. - -declare(QueueName, Durable, AutoDelete, Args, Owner) -> - ok = check_declare_arguments(QueueName, Args), - Q = start_queue_process(#amqqueue{name = QueueName, - durable = Durable, - auto_delete = AutoDelete, - arguments = Args, - exclusive_owner = Owner, - pid = none}), - case gen_server2:call(Q#amqqueue.pid, {init, false}) of - not_found -> rabbit_misc:not_found(QueueName); - Q1 -> Q1 - end. - -internal_declare(Q = #amqqueue{name = QueueName}, Recover) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - case Recover of - true -> - ok = store_queue(Q), - Q; - false -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> - case mnesia:read({rabbit_durable_queue, - QueueName}) of - [] -> ok = store_queue(Q), - ok = add_default_binding(Q), - Q; - [_] -> not_found %% Q exists on stopped node - end; - [ExistingQ] -> - ExistingQ - end - end - end). - -store_queue(Q = #amqqueue{durable = true}) -> - ok = mnesia:write(rabbit_durable_queue, Q, write), - ok = mnesia:write(rabbit_queue, Q, write), - ok; -store_queue(Q = #amqqueue{durable = false}) -> - ok = mnesia:write(rabbit_queue, Q, write), - ok. - -start_queue_process(Q) -> - {ok, Pid} = rabbit_amqqueue_sup:start_child([Q]), - Q#amqqueue{pid = Pid}. - -add_default_binding(#amqqueue{name = QueueName}) -> - ExchangeName = rabbit_misc:r(QueueName, exchange, <<>>), - RoutingKey = QueueName#resource.name, - rabbit_binding:add(#binding{source = ExchangeName, - destination = QueueName, - key = RoutingKey, - args = []}). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_queue, Name}). - -with(Name, F, E) -> - case lookup(Name) of - {ok, Q} -> rabbit_misc:with_exit_handler(E, fun () -> F(Q) end); - {error, not_found} -> E() - end. - -with(Name, F) -> - with(Name, F, fun () -> {error, not_found} end). -with_or_die(Name, F) -> - with(Name, F, fun () -> rabbit_misc:not_found(Name) end). - -assert_equivalence(#amqqueue{durable = Durable, - auto_delete = AutoDelete} = Q, - Durable, AutoDelete, RequiredArgs, Owner) -> - assert_args_equivalence(Q, RequiredArgs), - check_exclusive_access(Q, Owner, strict); -assert_equivalence(#amqqueue{name = QueueName}, - _Durable, _AutoDelete, _RequiredArgs, _Owner) -> - rabbit_misc:protocol_error( - not_allowed, "parameters for ~s not equivalent", - [rabbit_misc:rs(QueueName)]). - -check_exclusive_access(Q, Owner) -> check_exclusive_access(Q, Owner, lax). - -check_exclusive_access(#amqqueue{exclusive_owner = Owner}, Owner, _MatchType) -> - ok; -check_exclusive_access(#amqqueue{exclusive_owner = none}, _ReaderPid, lax) -> - ok; -check_exclusive_access(#amqqueue{name = QueueName}, _ReaderPid, _MatchType) -> - rabbit_misc:protocol_error( - resource_locked, - "cannot obtain exclusive access to locked ~s", - [rabbit_misc:rs(QueueName)]). - -with_exclusive_access_or_die(Name, ReaderPid, F) -> - with_or_die(Name, - fun (Q) -> check_exclusive_access(Q, ReaderPid), F(Q) end). - -assert_args_equivalence(#amqqueue{name = QueueName, arguments = Args}, - RequiredArgs) -> - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, QueueName, - [<<"x-expires">>]). - -check_declare_arguments(QueueName, Args) -> - [case Fun(rabbit_misc:table_lookup(Args, Key)) of - ok -> ok; - {error, Error} -> rabbit_misc:protocol_error( - precondition_failed, - "invalid arg '~s' for ~s: ~w", - [Key, rabbit_misc:rs(QueueName), Error]) - end || {Key, Fun} <- - [{<<"x-expires">>, fun check_expires_argument/1}, - {<<"x-message-ttl">>, fun check_message_ttl_argument/1}]], - ok. - -check_expires_argument(Val) -> - check_integer_argument(Val, - expires_not_of_acceptable_type, - expires_zero_or_less). - -check_message_ttl_argument(Val) -> - check_integer_argument(Val, - ttl_not_of_acceptable_type, - ttl_zero_or_less). - -check_integer_argument(undefined, _, _) -> - ok; -check_integer_argument({Type, Val}, InvalidTypeError, _) when Val > 0 -> - case lists:member(Type, ?INTEGER_ARG_TYPES) of - true -> ok; - false -> {error, {InvalidTypeError, Type, Val}} - end; -check_integer_argument({_Type, _Val}, _, ZeroOrLessError) -> - {error, ZeroOrLessError}. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_queue, - #amqqueue{name = rabbit_misc:r(VHostPath, queue), _ = '_'}). - -info_keys() -> rabbit_amqqueue_process:info_keys(). - -map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). - -info(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, info, infinity). - -info(#amqqueue{ pid = QPid }, Items) -> - case delegate_call(QPid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). - -consumers(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, consumers, infinity). - -consumers_all(VHostPath) -> - lists:concat( - map(VHostPath, - fun (Q) -> [{Q#amqqueue.name, ChPid, ConsumerTag, AckRequired} || - {ChPid, ConsumerTag, AckRequired} <- consumers(Q)] - end)). - -stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat, infinity). - -emit_stats(#amqqueue{pid = QPid}) -> - delegate_cast(QPid, emit_stats). - -delete_immediately(#amqqueue{ pid = QPid }) -> - gen_server2:cast(QPid, delete_immediately). - -delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}, infinity). - -purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge, infinity). - -deliver(QPid, #delivery{immediate = true, - txn = Txn, sender = ChPid, message = Message}) -> - gen_server2:call(QPid, {deliver_immediately, Txn, Message, ChPid}, - infinity); -deliver(QPid, #delivery{mandatory = true, - txn = Txn, sender = ChPid, message = Message}) -> - gen_server2:call(QPid, {deliver, Txn, Message, ChPid}, infinity), - true; -deliver(QPid, #delivery{txn = Txn, sender = ChPid, message = Message}) -> - gen_server2:cast(QPid, {deliver, Txn, Message, ChPid}), - true. - -requeue(QPid, MsgIds, ChPid) -> - delegate_call(QPid, {requeue, MsgIds, ChPid}, infinity). - -ack(QPid, Txn, MsgIds, ChPid) -> - delegate_cast(QPid, {ack, Txn, MsgIds, ChPid}). - -reject(QPid, MsgIds, Requeue, ChPid) -> - delegate_cast(QPid, {reject, MsgIds, Requeue, ChPid}). - -commit_all(QPids, Txn, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {commit, Txn, ChPid}, infinity) end, - QPids). - -rollback_all(QPids, Txn, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {rollback, Txn, ChPid}) end). - -notify_down_all(QPids, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, infinity) end, - QPids). - -limit_all(QPids, ChPid, LimiterPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> - gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) - end). - -basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> - delegate_call(QPid, {basic_get, ChPid, NoAck}, infinity). - -basic_consume(#amqqueue{pid = QPid}, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg) -> - delegate_call(QPid, {basic_consume, NoAck, ChPid, - LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg}, - infinity). - -basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> - ok = delegate_call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}, - infinity). - -notify_sent(QPid, ChPid) -> - delegate_cast(QPid, {notify_sent, ChPid}). - -unblock(QPid, ChPid) -> - delegate_cast(QPid, {unblock, ChPid}). - -flush_all(QPids, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). - -internal_delete1(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - ok = mnesia:delete({rabbit_durable_queue, QueueName}), - %% we want to execute some things, as decided by rabbit_exchange, - %% after the transaction. - rabbit_binding:remove_for_destination(QueueName). - -internal_delete(QueueName) -> - case rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> {error, not_found}; - [_] -> internal_delete1(QueueName) - end - end) of - {error, _} = Err -> Err; - Deletions -> ok = rabbit_binding:process_deletions(Deletions) - end. - -maybe_run_queue_via_backing_queue(QPid, Fun) -> - gen_server2:call(QPid, {maybe_run_queue_via_backing_queue, Fun}, infinity). - -update_ram_duration(QPid) -> - gen_server2:cast(QPid, update_ram_duration). - -set_ram_duration_target(QPid, Duration) -> - gen_server2:cast(QPid, {set_ram_duration_target, Duration}). - -set_maximum_since_use(QPid, Age) -> - gen_server2:cast(QPid, {set_maximum_since_use, Age}). - -maybe_expire(QPid) -> - gen_server2:cast(QPid, maybe_expire). - -drop_expired(QPid) -> - gen_server2:cast(QPid, drop_expired). - -on_node_down(Node) -> - rabbit_binding:process_deletions( - lists:foldl( - fun rabbit_binding:combine_deletions/2, - rabbit_binding:new_deletions(), - rabbit_misc:execute_mnesia_transaction( - fun () -> qlc:e(qlc:q([delete_queue(QueueName) || - #amqqueue{name = QueueName, pid = Pid} - <- mnesia:table(rabbit_queue), - node(Pid) == Node])) - end))). - -delete_queue(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - rabbit_binding:remove_transient_for_destination(QueueName). - -pseudo_queue(QueueName, Pid) -> - #amqqueue{name = QueueName, - durable = false, - auto_delete = false, - arguments = [], - pid = Pid}. - -safe_delegate_call_ok(F, Pids) -> - {_, Bad} = delegate:invoke(Pids, - fun (Pid) -> - rabbit_misc:with_exit_handler( - fun () -> ok end, - fun () -> F(Pid) end) - end), - case Bad of - [] -> ok; - _ -> {error, Bad} - end. - -delegate_call(Pid, Msg, Timeout) -> - delegate:invoke(Pid, fun (P) -> gen_server2:call(P, Msg, Timeout) end). - -delegate_cast(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> gen_server2:cast(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl deleted file mode 100644 index 9f99d2ff..00000000 --- a/src/rabbit_amqqueue_process.erl +++ /dev/null @@ -1,1049 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_amqqueue_process). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(gen_server2). - --define(UNSENT_MESSAGE_LIMIT, 100). --define(SYNC_INTERVAL, 5). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). - --define(BASE_MESSAGE_PROPERTIES, #message_properties{expiry = undefined}). - --export([start_link/1, info_keys/0]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2]). - --import(queue). --import(erlang). --import(lists). - -% Queue's state --record(q, {q, - exclusive_consumer, - has_had_consumers, - backing_queue, - backing_queue_state, - active_consumers, - blocked_consumers, - expires, - sync_timer_ref, - rate_timer_ref, - expiry_timer_ref, - stats_timer, - ttl, - ttl_timer_ref - }). - --record(consumer, {tag, ack_required}). - -%% These are held in our process dictionary --record(cr, {consumer_count, - ch_pid, - limiter_pid, - monitor_ref, - acktags, - is_limit_active, - txn, - unsent_message_count}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(info_keys/0 :: () -> [atom(),...]). --spec(start_link/1 :: (_) -> 'ignore' | {'error',_} | {'ok',pid()}). - --endif. - -%%---------------------------------------------------------------------------- - --define(STATISTICS_KEYS, - [pid, - exclusive_consumer_pid, - exclusive_consumer_tag, - messages_ready, - messages_unacknowledged, - messages, - consumers, - memory, - backing_queue_status - ]). - --define(CREATION_EVENT_KEYS, - [pid, - name, - durable, - auto_delete, - arguments, - owner_pid - ]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - -start_link(Q) -> gen_server2:start_link(?MODULE, Q, []). - -info_keys() -> ?INFO_KEYS. - -%%---------------------------------------------------------------------------- - -init(Q) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - process_flag(trap_exit, true), - {ok, BQ} = application:get_env(backing_queue_module), - - {ok, #q{q = Q#amqqueue{pid = self()}, - exclusive_consumer = none, - has_had_consumers = false, - backing_queue = BQ, - backing_queue_state = undefined, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - expires = undefined, - sync_timer_ref = undefined, - rate_timer_ref = undefined, - expiry_timer_ref = undefined, - ttl = undefined, - stats_timer = rabbit_event:init_stats_timer()}, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -terminate(shutdown, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate({shutdown, _}, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate(_Reason, State = #q{backing_queue = BQ}) -> - %% FIXME: How do we cancel active subscriptions? - terminate_shutdown(fun (BQS) -> - BQS1 = BQ:delete_and_terminate(BQS), - %% don't care if the internal delete - %% doesn't return 'ok'. - rabbit_amqqueue:internal_delete(qname(State)), - BQS1 - end, State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -declare(Recover, From, - State = #q{q = Q = #amqqueue{name = QName, durable = IsDurable}, - backing_queue = BQ, backing_queue_state = undefined, - stats_timer = StatsTimer}) -> - case rabbit_amqqueue:internal_declare(Q, Recover) of - not_found -> {stop, normal, not_found, State}; - Q -> gen_server2:reply(From, {new, Q}), - ok = file_handle_cache:register_callback( - rabbit_amqqueue, set_maximum_since_use, - [self()]), - ok = rabbit_memory_monitor:register( - self(), {rabbit_amqqueue, - set_ram_duration_target, [self()]}), - BQS = BQ:init(QName, IsDurable, Recover), - State1 = process_args(State#q{backing_queue_state = BQS}), - rabbit_event:notify(queue_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> emit_stats(State1) end), - noreply(State1); - Q1 -> {stop, normal, {existing, Q1}, State} - end. - -process_args(State = #q{q = #amqqueue{arguments = Arguments}}) -> - lists:foldl(fun({Arg, Fun}, State1) -> - case rabbit_misc:table_lookup(Arguments, Arg) of - {_Type, Val} -> Fun(Val, State1); - undefined -> State1 - end - end, State, [{<<"x-expires">>, fun init_expires/2}, - {<<"x-message-ttl">>, fun init_ttl/2}]). - -init_expires(Expires, State) -> ensure_expiry_timer(State#q{expires = Expires}). - -init_ttl(TTL, State) -> drop_expired_messages(State#q{ttl = TTL}). - -terminate_shutdown(Fun, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - stop_sync_timer(stop_rate_timer(State)), - case BQS of - undefined -> State; - _ -> ok = rabbit_memory_monitor:deregister(self()), - BQS1 = lists:foldl( - fun (#cr{txn = none}, BQSN) -> - BQSN; - (#cr{txn = Txn}, BQSN) -> - {_AckTags, BQSN1} = - BQ:tx_rollback(Txn, BQSN), - BQSN1 - end, BQS, all_ch_record()), - rabbit_event:notify(queue_deleted, [{pid, self()}]), - State1#q{backing_queue_state = Fun(BQS1)} - end. - -reply(Reply, NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {reply, Reply, NewState1, Timeout}. - -noreply(NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {noreply, NewState1, Timeout}. - -next_state(State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - ensure_rate_timer(State), - State2 = ensure_stats_timer(State1), - case BQ:needs_idle_timeout(BQS) of - true -> {ensure_sync_timer(State2), 0}; - false -> {stop_sync_timer(State2), hibernate} - end. - -ensure_sync_timer(State = #q{sync_timer_ref = undefined, backing_queue = BQ}) -> - {ok, TRef} = timer:apply_after( - ?SYNC_INTERVAL, - rabbit_amqqueue, maybe_run_queue_via_backing_queue, - [self(), fun (BQS) -> BQ:idle_timeout(BQS) end]), - State#q{sync_timer_ref = TRef}; -ensure_sync_timer(State) -> - State. - -stop_sync_timer(State = #q{sync_timer_ref = undefined}) -> - State; -stop_sync_timer(State = #q{sync_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{sync_timer_ref = undefined}. - -ensure_rate_timer(State = #q{rate_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), - State#q{rate_timer_ref = TRef}; -ensure_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -ensure_rate_timer(State) -> - State. - -stop_rate_timer(State = #q{rate_timer_ref = undefined}) -> - State; -stop_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{rate_timer_ref = undefined}. - -stop_expiry_timer(State = #q{expiry_timer_ref = undefined}) -> - State; -stop_expiry_timer(State = #q{expiry_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{expiry_timer_ref = undefined}. - -%% We wish to expire only when there are no consumers *and* the expiry -%% hasn't been refreshed (by queue.declare or basic.get) for the -%% configured period. -ensure_expiry_timer(State = #q{expires = undefined}) -> - State; -ensure_expiry_timer(State = #q{expires = Expires}) -> - case is_unused(State) of - true -> - NewState = stop_expiry_timer(State), - {ok, TRef} = timer:apply_after( - Expires, rabbit_amqqueue, maybe_expire, [self()]), - NewState#q{expiry_timer_ref = TRef}; - false -> - State - end. - -ensure_stats_timer(State = #q{stats_timer = StatsTimer, - q = Q}) -> - State#q{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> rabbit_amqqueue:emit_stats(Q) end)}. - -assert_invariant(#q{active_consumers = AC, - backing_queue = BQ, backing_queue_state = BQS}) -> - true = (queue:is_empty(AC) orelse BQ:is_empty(BQS)). - -lookup_ch(ChPid) -> - case get({ch, ChPid}) of - undefined -> not_found; - C -> C - end. - -ch_record(ChPid) -> - Key = {ch, ChPid}, - case get(Key) of - undefined -> - MonitorRef = erlang:monitor(process, ChPid), - C = #cr{consumer_count = 0, - ch_pid = ChPid, - monitor_ref = MonitorRef, - acktags = sets:new(), - is_limit_active = false, - txn = none, - unsent_message_count = 0}, - put(Key, C), - C; - C = #cr{} -> C - end. - -store_ch_record(C = #cr{ch_pid = ChPid}) -> - put({ch, ChPid}, C). - -all_ch_record() -> - [C || {{ch, _}, C} <- get()]. - -is_ch_blocked(#cr{unsent_message_count = Count, is_limit_active = Limited}) -> - Limited orelse Count >= ?UNSENT_MESSAGE_LIMIT. - -ch_record_state_transition(OldCR, NewCR) -> - BlockedOld = is_ch_blocked(OldCR), - BlockedNew = is_ch_blocked(NewCR), - if BlockedOld andalso not(BlockedNew) -> unblock; - BlockedNew andalso not(BlockedOld) -> block; - true -> ok - end. - -record_current_channel_tx(ChPid, Txn) -> - %% as a side effect this also starts monitoring the channel (if - %% that wasn't happening already) - store_ch_record((ch_record(ChPid))#cr{txn = Txn}). - -deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - case queue:out(ActiveConsumers) of - {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}}, - ActiveConsumersTail} -> - C = #cr{limiter_pid = LimiterPid, - unsent_message_count = Count, - acktags = ChAckTags} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of - true -> - {{Message, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), AckTag, IsDelivered, Message}), - ChAckTags1 = case AckRequired of - true -> sets:add_element( - AckTag, ChAckTags); - false -> ChAckTags - end, - NewC = C#cr{unsent_message_count = Count + 1, - acktags = ChAckTags1}, - store_ch_record(NewC), - {NewActiveConsumers, NewBlockedConsumers} = - case ch_record_state_transition(C, NewC) of - ok -> {queue:in(QEntry, ActiveConsumersTail), - BlockedConsumers}; - block -> - {ActiveConsumers1, BlockedConsumers1} = - move_consumers(ChPid, - ActiveConsumersTail, - BlockedConsumers), - {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} - end, - State2 = State1#q{ - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}, - deliver_msgs_to_consumers(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> - store_ch_record(C#cr{is_limit_active = true}), - {NewActiveConsumers, NewBlockedConsumers} = - move_consumers(ChPid, - ActiveConsumers, - BlockedConsumers), - deliver_msgs_to_consumers( - Funs, FunAcc, - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} - end; - {empty, _} -> - {FunAcc, State} - end. - -deliver_from_queue_pred(IsEmpty, _State) -> - not IsEmpty. - -deliver_from_queue_deliver(AckRequired, false, State) -> - {{Message, IsDelivered, AckTag, Remaining}, State1} = - fetch(AckRequired, State), - {{Message, IsDelivered, AckTag}, 0 == Remaining, State1}. - -run_message_queue(State) -> - Funs = {fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3}, - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - drop_expired_messages(State), - IsEmpty = BQ:is_empty(BQS), - {_IsEmpty1, State2} = deliver_msgs_to_consumers(Funs, IsEmpty, State1), - State2. - -attempt_delivery(none, _ChPid, Message, State = #q{backing_queue = BQ}) -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1 = #q{backing_queue_state = BQS}) -> - %% we don't need an expiry here because messages are - %% not being enqueued, so we use an empty - %% message_properties. - {AckTag, BQS1} = - BQ:publish_delivered(AckRequired, Message, - ?BASE_MESSAGE_PROPERTIES, BQS), - {{Message, false, AckTag}, true, - State1#q{backing_queue_state = BQS1}} - end, - deliver_msgs_to_consumers({ PredFun, DeliverFun }, false, State); -attempt_delivery(Txn, ChPid, Message, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - record_current_channel_tx(ChPid, Txn), - {true, - State#q{backing_queue_state = - BQ:tx_publish(Txn, Message, ?BASE_MESSAGE_PROPERTIES, BQS)}}. - -deliver_or_enqueue(Txn, ChPid, Message, State = #q{backing_queue = BQ}) -> - case attempt_delivery(Txn, ChPid, Message, State) of - {true, NewState} -> - {true, NewState}; - {false, NewState} -> - %% Txn is none and no unblocked channels with consumers - BQS = BQ:publish(Message, - message_properties(State), - State #q.backing_queue_state), - {false, ensure_ttl_timer(NewState#q{backing_queue_state = BQS})} - end. - -requeue_and_run(AckTags, State = #q{backing_queue = BQ, ttl=TTL}) -> - maybe_run_queue_via_backing_queue( - fun (BQS) -> - BQ:requeue(AckTags, reset_msg_expiry_fun(TTL), BQS) - end, State). - -fetch(AckRequired, State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - {Result, BQS1} = BQ:fetch(AckRequired, BQS), - {Result, State#q{backing_queue_state = BQS1}}. - -add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). - -remove_consumer(ChPid, ConsumerTag, Queue) -> - queue:filter(fun ({CP, #consumer{tag = CT}}) -> - (CP /= ChPid) or (CT /= ConsumerTag) - end, Queue). - -remove_consumers(ChPid, Queue) -> - queue:filter(fun ({CP, _}) -> CP /= ChPid end, Queue). - -move_consumers(ChPid, From, To) -> - {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, - queue:to_list(From)), - {queue:from_list(Kept), queue:join(To, queue:from_list(Removed))}. - -possibly_unblock(State, ChPid, Update) -> - case lookup_ch(ChPid) of - not_found -> - State; - C -> - NewC = Update(C), - store_ch_record(NewC), - case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> {NewBlockedConsumers, NewActiveConsumers} = - move_consumers(ChPid, - State#q.blocked_consumers, - State#q.active_consumers), - run_message_queue( - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}) - end - end. - -should_auto_delete(#q{q = #amqqueue{auto_delete = false}}) -> false; -should_auto_delete(#q{has_had_consumers = false}) -> false; -should_auto_delete(State) -> is_unused(State). - -handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(DownPid) of - not_found -> - {ok, State}; - #cr{monitor_ref = MonitorRef, ch_pid = ChPid, txn = Txn, - acktags = ChAckTags} -> - erlang:demonitor(MonitorRef), - erase({ch, ChPid}), - State1 = State#q{ - exclusive_consumer = case Holder of - {ChPid, _} -> none; - Other -> Other - end, - active_consumers = remove_consumers( - ChPid, State#q.active_consumers), - blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, - case should_auto_delete(State1) of - true -> {stop, State1}; - false -> State2 = case Txn of - none -> State1; - _ -> rollback_transaction(Txn, ChPid, - State1) - end, - {ok, requeue_and_run(sets:to_list(ChAckTags), - ensure_expiry_timer(State2))} - end - end. - -cancel_holder(ChPid, ConsumerTag, {ChPid, ConsumerTag}) -> - none; -cancel_holder(_ChPid, _ConsumerTag, Holder) -> - Holder. - -check_exclusive_access({_ChPid, _ConsumerTag}, _ExclusiveConsume, _State) -> - in_use; -check_exclusive_access(none, false, _State) -> - ok; -check_exclusive_access(none, true, State) -> - case is_unused(State) of - true -> ok; - false -> in_use - end. - -is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso - queue:is_empty(State#q.blocked_consumers). - -maybe_send_reply(_ChPid, undefined) -> ok; -maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). - -qname(#q{q = #amqqueue{name = QName}}) -> QName. - -maybe_run_queue_via_backing_queue(Fun, State = #q{backing_queue_state = BQS}) -> - run_message_queue(State#q{backing_queue_state = Fun(BQS)}). - -commit_transaction(Txn, From, ChPid, State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL}) -> - {AckTags, BQS1} = BQ:tx_commit(Txn, - fun () -> gen_server2:reply(From, ok) end, - reset_msg_expiry_fun(TTL), - BQS), - %% ChPid must be known here because of the participant management - %% by the channel. - C = #cr{acktags = ChAckTags} = lookup_ch(ChPid), - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - store_ch_record(C#cr{acktags = ChAckTags1, txn = none}), - State#q{backing_queue_state = BQS1}. - -rollback_transaction(Txn, ChPid, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {_AckTags, BQS1} = BQ:tx_rollback(Txn, BQS), - %% Iff we removed acktags from the channel record on ack+txn then - %% we would add them back in here (would also require ChPid) - record_current_channel_tx(ChPid, none), - State#q{backing_queue_state = BQS1}. - -subtract_acks(A, B) when is_list(B) -> - lists:foldl(fun sets:del_element/2, A, B). - -reset_msg_expiry_fun(TTL) -> - fun(MsgProps) -> - MsgProps#message_properties{expiry = calculate_msg_expiry(TTL)} - end. - -message_properties(#q{ttl=TTL}) -> - #message_properties{expiry = calculate_msg_expiry(TTL)}. - -calculate_msg_expiry(undefined) -> undefined; -calculate_msg_expiry(TTL) -> now_millis() + (TTL * 1000). - -drop_expired_messages(State = #q{ttl = undefined}) -> - State; -drop_expired_messages(State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - Now = now_millis(), - BQS1 = BQ:dropwhile( - fun (#message_properties{expiry = Expiry}) -> - Now > Expiry - end, BQS), - ensure_ttl_timer(State#q{backing_queue_state = BQS1}). - -ensure_ttl_timer(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL, - ttl_timer_ref = undefined}) - when TTL =/= undefined -> - case BQ:is_empty(BQS) of - true -> State; - false -> TRef = timer:apply_after(TTL, rabbit_amqqueue, drop_expired, - [self()]), - State#q{ttl_timer_ref = TRef} - end; -ensure_ttl_timer(State) -> - State. - -now_millis() -> timer:now_diff(now(), {0,0,0}). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(name, #q{q = #amqqueue{name = Name}}) -> Name; -i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; -i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; -i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(pid, _) -> - self(); -i(owner_pid, #q{q = #amqqueue{exclusive_owner = none}}) -> - ''; -i(owner_pid, #q{q = #amqqueue{exclusive_owner = ExclusiveOwner}}) -> - ExclusiveOwner; -i(exclusive_consumer_pid, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_pid, #q{exclusive_consumer = {ChPid, _ConsumerTag}}) -> - ChPid; -i(exclusive_consumer_tag, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_tag, #q{exclusive_consumer = {_ChPid, ConsumerTag}}) -> - ConsumerTag; -i(messages_ready, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:len(BQS); -i(messages_unacknowledged, _) -> - lists:sum([sets:size(C#cr.acktags) || C <- all_ch_record()]); -i(messages, State) -> - lists:sum([i(Item, State) || Item <- [messages_ready, - messages_unacknowledged]]); -i(consumers, State) -> - queue:len(State#q.active_consumers) + queue:len(State#q.blocked_consumers); -i(memory, _) -> - {memory, M} = process_info(self(), memory), - M; -i(backing_queue_status, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:status(BQS); -i(Item, _) -> - throw({bad_argument, Item}). - -emit_stats(State) -> - rabbit_event:notify(queue_stats, infos(?STATISTICS_KEYS, State)). - -%--------------------------------------------------------------------------- - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - consumers -> 9; - {maybe_run_queue_via_backing_queue, _Fun} -> 6; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - update_ram_duration -> 8; - delete_immediately -> 8; - {set_ram_duration_target, _Duration} -> 8; - {set_maximum_since_use, _Age} -> 8; - maybe_expire -> 8; - drop_expired -> 8; - emit_stats -> 7; - {ack, _Txn, _MsgIds, _ChPid} -> 7; - {reject, _MsgIds, _Requeue, _ChPid} -> 7; - {notify_sent, _ChPid} -> 7; - {unblock, _ChPid} -> 7; - _ -> 0 - end. - -prioritise_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - #q{q = #amqqueue{exclusive_owner = DownPid}}) -> 8; -prioritise_info(_Msg, _State) -> 0. - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = none}}) -> - declare(Recover, From, State); - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = Owner}}) -> - case rpc:call(node(Owner), erlang, is_process_alive, [Owner]) of - true -> erlang:monitor(process, Owner), - declare(Recover, From, State); - _ -> #q{q = #amqqueue{name = QName, durable = IsDurable}, - backing_queue = BQ, backing_queue_state = undefined} = State, - gen_server2:reply(From, not_found), - case Recover of - true -> ok; - _ -> rabbit_log:warning( - "Queue ~p exclusive owner went away~n", [QName]) - end, - BQS = BQ:init(QName, IsDurable, Recover), - %% Rely on terminate to delete the queue. - {stop, normal, State#q{backing_queue_state = BQS}} - end; - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(consumers, _From, - State = #q{active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - reply(rabbit_misc:queue_fold( - fun ({ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}, Acc) -> - [{ChPid, ConsumerTag, AckRequired} | Acc] - end, [], queue:join(ActiveConsumers, BlockedConsumers)), State); - -handle_call({deliver_immediately, Txn, Message, ChPid}, _From, State) -> - %% Synchronous, "immediate" delivery mode - %% - %% FIXME: Is this correct semantics? - %% - %% I'm worried in particular about the case where an exchange has - %% two queues against a particular routing key, and a message is - %% sent in immediate mode through the binding. In non-immediate - %% mode, both queues get the message, saving it for later if - %% there's noone ready to receive it just now. In immediate mode, - %% should both queues still get the message, somehow, or should - %% just all ready-to-consume queues get the message, with unready - %% queues discarding the message? - %% - {Delivered, NewState} = attempt_delivery(Txn, ChPid, Message, State), - reply(Delivered, NewState); - -handle_call({deliver, Txn, Message, ChPid}, _From, State) -> - %% Synchronous, "mandatory" delivery mode - {Delivered, NewState} = deliver_or_enqueue(Txn, ChPid, Message, State), - reply(Delivered, NewState); - -handle_call({commit, Txn, ChPid}, From, State) -> - NewState = commit_transaction(Txn, From, ChPid, State), - noreply(run_message_queue(NewState)); - -handle_call({notify_down, ChPid}, _From, State) -> - %% we want to do this synchronously, so that auto_deleted queues - %% are no longer visible by the time we send a response to the - %% client. The queue is ultimately deleted in terminate/2; if we - %% return stop with a reply, terminate/2 will be called by - %% gen_server2 *before* the reply is sent. - case handle_ch_down(ChPid, State) of - {ok, NewState} -> reply(ok, NewState); - {stop, NewState} -> {stop, normal, ok, NewState} - end; - -handle_call({basic_get, ChPid, NoAck}, _From, - State = #q{q = #amqqueue{name = QName}}) -> - AckRequired = not NoAck, - State1 = ensure_expiry_timer(State), - case fetch(AckRequired, drop_expired_messages(State1)) of - {empty, State2} -> - reply(empty, State2); - {{Message, IsDelivered, AckTag, Remaining}, State2} -> - case AckRequired of - true -> C = #cr{acktags = ChAckTags} = ch_record(ChPid), - store_ch_record( - C#cr{acktags = sets:add_element(AckTag, ChAckTags)}); - false -> ok - end, - Msg = {QName, self(), AckTag, IsDelivered, Message}, - reply({ok, Remaining, Msg}, State2) - end; - -handle_call({basic_consume, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg}, - _From, State = #q{exclusive_consumer = ExistingHolder}) -> - case check_exclusive_access(ExistingHolder, ExclusiveConsume, - State) of - in_use -> - reply({error, exclusive_consume_unavailable}, State); - ok -> - C = #cr{consumer_count = ConsumerCount} = ch_record(ChPid), - Consumer = #consumer{tag = ConsumerTag, - ack_required = not NoAck}, - store_ch_record(C#cr{consumer_count = ConsumerCount +1, - limiter_pid = LimiterPid}), - ok = case ConsumerCount of - 0 -> rabbit_limiter:register(LimiterPid, self()); - _ -> ok - end, - ExclusiveConsumer = if ExclusiveConsume -> {ChPid, ConsumerTag}; - true -> ExistingHolder - end, - State1 = State#q{has_had_consumers = true, - exclusive_consumer = ExclusiveConsumer}, - ok = maybe_send_reply(ChPid, OkMsg), - State2 = - case is_ch_blocked(C) of - true -> State1#q{ - blocked_consumers = - add_consumer( - ChPid, Consumer, - State1#q.blocked_consumers)}; - false -> run_message_queue( - State1#q{ - active_consumers = - add_consumer( - ChPid, Consumer, - State1#q.active_consumers)}) - end, - reply(ok, State2) - end; - -handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, - State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(ChPid) of - not_found -> - ok = maybe_send_reply(ChPid, OkMsg), - reply(ok, State); - C = #cr{consumer_count = ConsumerCount, limiter_pid = LimiterPid} -> - store_ch_record(C#cr{consumer_count = ConsumerCount - 1}), - case ConsumerCount of - 1 -> ok = rabbit_limiter:unregister(LimiterPid, self()); - _ -> ok - end, - ok = maybe_send_reply(ChPid, OkMsg), - NewState = - State#q{exclusive_consumer = cancel_holder(ChPid, - ConsumerTag, - Holder), - active_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.active_consumers), - blocked_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.blocked_consumers)}, - case should_auto_delete(NewState) of - false -> reply(ok, ensure_expiry_timer(NewState)); - true -> {stop, normal, ok, NewState} - end - end; - -handle_call(stat, _From, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS, - active_consumers = ActiveConsumers} = - drop_expired_messages(ensure_expiry_timer(State)), - reply({ok, BQ:len(BQS), queue:len(ActiveConsumers)}, State1); - -handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q{backing_queue_state = BQS, backing_queue = BQ}) -> - IsEmpty = BQ:is_empty(BQS), - IsUnused = is_unused(State), - if - IfEmpty and not(IsEmpty) -> - reply({error, not_empty}, State); - IfUnused and not(IsUnused) -> - reply({error, in_use}, State); - true -> - {stop, normal, {ok, BQ:len(BQS)}, State} - end; - -handle_call(purge, _From, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {Count, BQS1} = BQ:purge(BQS), - reply({ok, Count}, State#q{backing_queue_state = BQS1}); - -handle_call({requeue, AckTags, ChPid}, From, State) -> - gen_server2:reply(From, ok), - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(requeue_and_run(AckTags, State)) - end; - -handle_call({maybe_run_queue_via_backing_queue, Fun}, _From, State) -> - reply(ok, maybe_run_queue_via_backing_queue(Fun, State)). - -handle_cast({deliver, Txn, Message, ChPid}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - {_Delivered, NewState} = deliver_or_enqueue(Txn, ChPid, Message, State), - noreply(NewState); - -handle_cast({ack, Txn, AckTags, ChPid}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - {C1, BQS1} = - case Txn of - none -> ChAckTags1 = subtract_acks(ChAckTags, AckTags), - {C#cr{acktags = ChAckTags1}, BQ:ack(AckTags, BQS)}; - _ -> {C#cr{txn = Txn}, BQ:tx_ack(Txn, AckTags, BQS)} - end, - store_ch_record(C1), - noreply(State#q{backing_queue_state = BQS1}) - end; - -handle_cast({reject, AckTags, Requeue, ChPid}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(case Requeue of - true -> requeue_and_run(AckTags, State); - false -> BQS1 = BQ:ack(AckTags, BQS), - State #q { backing_queue_state = BQS1 } - end) - end; - -handle_cast({rollback, Txn, ChPid}, State) -> - noreply(rollback_transaction(Txn, ChPid, State)); - -handle_cast(delete_immediately, State) -> - {stop, normal, State}; - -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - -handle_cast({notify_sent, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C = #cr{unsent_message_count = Count}) -> - C#cr{unsent_message_count = Count - 1} - end)); - -handle_cast({limit, ChPid, LimiterPid}, State) -> - noreply( - possibly_unblock( - State, ChPid, - fun (C = #cr{consumer_count = ConsumerCount, - limiter_pid = OldLimiterPid, - is_limit_active = Limited}) -> - if ConsumerCount =/= 0 andalso OldLimiterPid == undefined -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, - NewLimited = Limited andalso LimiterPid =/= undefined, - C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({flush, ChPid}, State) -> - ok = rabbit_channel:flushed(ChPid, self()), - noreply(State); - -handle_cast(update_ram_duration, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State#q{rate_timer_ref = just_measured, - backing_queue_state = BQS2}); - -handle_cast({set_ram_duration_target, Duration}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - BQS1 = BQ:set_ram_duration_target(Duration, BQS), - noreply(State#q{backing_queue_state = BQS1}); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_cast(maybe_expire, State) -> - case is_unused(State) of - true -> ?LOGDEBUG("Queue lease expired for ~p~n", [State#q.q]), - {stop, normal, State}; - false -> noreply(ensure_expiry_timer(State)) - end; - -handle_cast(drop_expired, State) -> - noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); - -handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> - %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), - State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - assert_invariant(State1), - {noreply, State1, hibernate}. - -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> - %% Exclusively owned queues must disappear with their owner. In - %% the case of clean shutdown we delete the queue synchronously in - %% the reader - although not required by the spec this seems to - %% match what people expect (see bug 21824). However we need this - %% monitor-and-async- delete in case the connection goes away - %% unexpectedly. - {stop, normal, State}; -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> - case handle_ch_down(DownPid, State) of - {ok, NewState} -> noreply(NewState); - {stop, NewState} -> {stop, normal, NewState} - end; - -handle_info(timeout, State = #q{backing_queue = BQ}) -> - noreply(maybe_run_queue_via_backing_queue( - fun (BQS) -> BQ:idle_timeout(BQS) end, State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; - -handle_info(Info, State) -> - ?LOGDEBUG("Info in queue: ~p~n", [Info]), - {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q{backing_queue_state = undefined}) -> - {hibernate, State}; -handle_pre_hibernate(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - stats_timer = StatsTimer}) -> - BQS1 = BQ:handle_pre_hibernate(BQS), - %% no activity for a while == 0 egress and ingress rates - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), infinity), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - rabbit_event:if_enabled(StatsTimer, fun () -> emit_stats(State) end), - State1 = State#q{stats_timer = rabbit_event:stop_stats_timer(StatsTimer), - backing_queue_state = BQS2}, - {hibernate, stop_rate_timer(State1)}. diff --git a/src/rabbit_amqqueue_sup.erl b/src/rabbit_amqqueue_sup.erl deleted file mode 100644 index 14550752..00000000 --- a/src/rabbit_amqqueue_sup.erl +++ /dev/null @@ -1,63 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_amqqueue_sup). - --behaviour(supervisor2). - --export([start_link/0, start_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_child/1 :: (_) -> any()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor2:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Args) -> - supervisor2:start_child(?SERVER, Args). - -init([]) -> - {ok, {{simple_one_for_one_terminate, 10, 10}, - [{rabbit_amqqueue, {rabbit_amqqueue_process, start_link, []}, - temporary, ?MAX_WAIT, worker, [rabbit_amqqueue_process]}]}}. diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl deleted file mode 100644 index ef38d193..00000000 --- a/src/rabbit_backing_queue.erl +++ /dev/null @@ -1,154 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_backing_queue). - --export([behaviour_info/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(behaviour_info/1 :: - (_) -> 'undefined' | [{atom(),0 | 1 | 2 | 3 | 4},...]). - --endif. - -%%---------------------------------------------------------------------------- - -behaviour_info(callbacks) -> - [ - %% Called on startup with a list of durable queue names. The - %% queues aren't being started at this point, but this call - %% allows the backing queue to perform any checking necessary for - %% the consistency of those queues, or initialise any other - %% shared resources. - {start, 1}, - - %% Called to tear down any state/resources. NB: Implementations - %% should not depend on this function being called on shutdown - %% and instead should hook into the rabbit supervision hierarchy. - {stop, 0}, - - %% Initialise the backing queue and its state. - {init, 3}, - - %% Called on queue shutdown when queue isn't being deleted. - {terminate, 1}, - - %% Called when the queue is terminating and needs to delete all - %% its content. - {delete_and_terminate, 1}, - - %% Remove all messages in the queue, but not messages which have - %% been fetched and are pending acks. - {purge, 1}, - - %% Publish a message. - {publish, 3}, - - %% Called for messages which have already been passed straight - %% out to a client. The queue will be empty for these calls - %% (i.e. saves the round trip through the backing queue). - {publish_delivered, 4}, - - %% Drop messages from the head of the queue while the supplied - %% predicate returns true. - {dropwhile, 2}, - - %% Produce the next message. - {fetch, 2}, - - %% Acktags supplied are for messages which can now be forgotten - %% about. - {ack, 2}, - - %% A publish, but in the context of a transaction. - {tx_publish, 4}, - - %% Acks, but in the context of a transaction. - {tx_ack, 3}, - - %% Undo anything which has been done in the context of the - %% specified transaction. - {tx_rollback, 2}, - - %% Commit a transaction. The Fun passed in must be called once - %% the messages have really been commited. This CPS permits the - %% possibility of commit coalescing. - {tx_commit, 4}, - - %% Reinsert messages into the queue which have already been - %% delivered and were pending acknowledgement. - {requeue, 3}, - - %% How long is my queue? - {len, 1}, - - %% Is my queue empty? - {is_empty, 1}, - - %% For the next three functions, the assumption is that you're - %% monitoring something like the ingress and egress rates of the - %% queue. The RAM duration is thus the length of time represented - %% by the messages held in RAM given the current rates. If you - %% want to ignore all of this stuff, then do so, and return 0 in - %% ram_duration/1. - - %% The target is to have no more messages in RAM than indicated - %% by the duration and the current queue rates. - {set_ram_duration_target, 2}, - - %% Optionally recalculate the duration internally (likely to be - %% just update your internal rates), and report how many seconds - %% the messages in RAM represent given the current rates of the - %% queue. - {ram_duration, 1}, - - %% Should 'idle_timeout' be called as soon as the queue process - %% can manage (either on an empty mailbox, or when a timer - %% fires)? - {needs_idle_timeout, 1}, - - %% Called (eventually) after needs_idle_timeout returns - %% 'true'. Note this may be called more than once for each 'true' - %% returned from needs_idle_timeout. - {idle_timeout, 1}, - - %% Called immediately before the queue hibernates. - {handle_pre_hibernate, 1}, - - %% Exists for debugging purposes, to be able to expose state via - %% rabbitmqctl list_queues backing_queue_status - {status, 1} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl deleted file mode 100644 index ad00daa9..00000000 --- a/src/rabbit_channel.erl +++ /dev/null @@ -1,1227 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_channel). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/7, do/2, do/3, shutdown/1]). --export([send_command/2, deliver/4, flushed/2]). --export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). --export([emit_stats/1, flush/1]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2]). - --record(ch, {state, channel, reader_pid, writer_pid, limiter_pid, - start_limiter_fun, transaction_id, tx_participants, next_tag, - uncommitted_ack_q, unacked_message_q, - username, virtual_host, most_recently_declared_queue, - consumer_mapping, blocking, queue_collector_pid, stats_timer}). - --define(MAX_PERMISSION_CACHE_SIZE, 12). - --define(STATISTICS_KEYS, - [pid, - transactional, - consumer_count, - messages_unacknowledged, - acks_uncommitted, - prefetch_count, - client_flow_blocked]). - --define(CREATION_EVENT_KEYS, - [pid, - connection, - number, - user, - vhost]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([channel_number/0]). - --type(channel_number() :: non_neg_integer()). - --spec(start_link/7 :: - (channel_number(), pid(), pid(), rabbit_access_control:username(), - rabbit_types:vhost(), pid(), - fun ((non_neg_integer()) -> rabbit_types:ok(pid()))) -> - rabbit_types:ok_pid_or_error()). --spec(do/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(do/3 :: (pid(), rabbit_framing:amqp_method_record(), - rabbit_types:maybe(rabbit_types:content())) -> 'ok'). --spec(shutdown/1 :: (pid()) -> 'ok'). --spec(send_command/2 :: (pid(), rabbit_framing:amqp_method()) -> 'ok'). --spec(deliver/4 :: - (pid(), rabbit_types:ctag(), boolean(), rabbit_amqqueue:qmsg()) - -> 'ok'). --spec(flushed/2 :: (pid(), pid()) -> 'ok'). --spec(list/0 :: () -> [pid()]). --spec(info_keys/0 :: () -> [rabbit_types:info_key()]). --spec(info/1 :: (pid()) -> [rabbit_types:info()]). --spec(info/2 :: (pid(), [rabbit_types:info_key()]) -> [rabbit_types:info()]). --spec(info_all/0 :: () -> [[rabbit_types:info()]]). --spec(info_all/1 :: ([rabbit_types:info_key()]) -> [[rabbit_types:info()]]). --spec(emit_stats/1 :: (pid()) -> 'ok'). - --spec(flush/1 :: (_) -> any()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Channel, ReaderPid, WriterPid, Username, VHost, CollectorPid, - StartLimiterFun) -> - gen_server2:start_link(?MODULE, [Channel, ReaderPid, WriterPid, Username, - VHost, CollectorPid, StartLimiterFun], []). - -do(Pid, Method) -> - do(Pid, Method, none). - -do(Pid, Method, Content) -> - gen_server2:cast(Pid, {method, Method, Content}). - -shutdown(Pid) -> - gen_server2:cast(Pid, terminate). - -send_command(Pid, Msg) -> - gen_server2:cast(Pid, {command, Msg}). - -deliver(Pid, ConsumerTag, AckRequired, Msg) -> - gen_server2:cast(Pid, {deliver, ConsumerTag, AckRequired, Msg}). - -flushed(Pid, QPid) -> - gen_server2:cast(Pid, {flushed, QPid}). - -list() -> - pg_local:get_members(rabbit_channels). - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server2:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server2:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all() -> - rabbit_misc:filter_exit_map(fun (C) -> info(C) end, list()). - -info_all(Items) -> - rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). - -emit_stats(Pid) -> - gen_server2:cast(Pid, emit_stats). - -flush(Pid) -> - gen_server2:call(Pid, flush). - -%%--------------------------------------------------------------------------- - -init([Channel, ReaderPid, WriterPid, Username, VHost, CollectorPid, - StartLimiterFun]) -> - process_flag(trap_exit, true), - ok = pg_local:join(rabbit_channels, self()), - StatsTimer = rabbit_event:init_stats_timer(), - State = #ch{state = starting, - channel = Channel, - reader_pid = ReaderPid, - writer_pid = WriterPid, - limiter_pid = undefined, - start_limiter_fun = StartLimiterFun, - transaction_id = none, - tx_participants = sets:new(), - next_tag = 1, - uncommitted_ack_q = queue:new(), - unacked_message_q = queue:new(), - username = Username, - virtual_host = VHost, - most_recently_declared_queue = <<>>, - consumer_mapping = dict:new(), - blocking = dict:new(), - queue_collector_pid = CollectorPid, - stats_timer = StatsTimer}, - rabbit_event:notify(channel_created, infos(?CREATION_EVENT_KEYS, State)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State) end), - {ok, State, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - emit_stats -> 7; - _ -> 0 - end. - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(flush, _From, State) -> - reply(ok, State); - -handle_call(_Request, _From, State) -> - noreply(State). - -handle_cast({method, Method, Content}, State) -> - try handle_method(Method, Content, State) of - {reply, Reply, NewState} -> - ok = rabbit_writer:send_command(NewState#ch.writer_pid, Reply), - noreply(NewState); - {noreply, NewState} -> - noreply(NewState); - stop -> - {stop, normal, State#ch{state = terminating}} - catch - exit:Reason = #amqp_error{} -> - MethodName = rabbit_misc:method_record_type(Method), - {stop, normal, terminating(Reason#amqp_error{method = MethodName}, - State)}; - exit:normal -> - {stop, normal, State}; - _:Reason -> - {stop, {Reason, erlang:get_stacktrace()}, State} - end; - -handle_cast({flushed, QPid}, State) -> - {noreply, queue_blocked(QPid, State), hibernate}; - -handle_cast(terminate, State) -> - {stop, normal, State}; - -handle_cast({command, Msg}, State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(State); - -handle_cast({deliver, ConsumerTag, AckRequired, Msg}, - State = #ch{writer_pid = WriterPid, - next_tag = DeliveryTag}) -> - State1 = lock_message(AckRequired, {DeliveryTag, ConsumerTag, Msg}, State), - ok = internal_deliver(WriterPid, true, ConsumerTag, DeliveryTag, Msg), - {_QName, QPid, _MsgId, _Redelivered, _Msg} = Msg, - maybe_incr_stats([{QPid, 1}], - case AckRequired of - true -> deliver; - false -> deliver_no_ack - end, State), - noreply(State1#ch{next_tag = DeliveryTag + 1}); - -handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> - internal_emit_stats(State), - {noreply, - State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - hibernate}. - -handle_info({'DOWN', _MRef, process, QPid, _Reason}, State) -> - erase_queue_stats(QPid), - {noreply, queue_blocked(QPid, State), hibernate}. - -handle_pre_hibernate(State = #ch{stats_timer = StatsTimer}) -> - ok = clear_permission_cache(), - rabbit_event:if_enabled(StatsTimer, fun () -> - internal_emit_stats(State) - end), - {hibernate, - State#ch{stats_timer = rabbit_event:stop_stats_timer(StatsTimer)}}. - -terminate(_Reason, State = #ch{state = terminating}) -> - terminate(State); - -terminate(Reason, State) -> - Res = rollback_and_notify(State), - case Reason of - normal -> ok = Res; - shutdown -> ok = Res; - {shutdown, _Term} -> ok = Res; - _ -> ok - end, - terminate(State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%--------------------------------------------------------------------------- - -reply(Reply, NewState) -> - {reply, Reply, ensure_stats_timer(NewState), hibernate}. - -noreply(NewState) -> - {noreply, ensure_stats_timer(NewState), hibernate}. - -ensure_stats_timer(State = #ch{stats_timer = StatsTimer}) -> - ChPid = self(), - State#ch{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(ChPid) end)}. - -return_ok(State, true, _Msg) -> {noreply, State}; -return_ok(State, false, Msg) -> {reply, Msg, State}. - -ok_msg(true, _Msg) -> undefined; -ok_msg(false, Msg) -> Msg. - -terminating(Reason, State = #ch{channel = Channel, reader_pid = Reader}) -> - ok = rollback_and_notify(State), - Reader ! {channel_exit, Channel, Reason}, - State#ch{state = terminating}. - -return_queue_declare_ok(#resource{name = ActualName}, - NoWait, MessageCount, ConsumerCount, State) -> - return_ok(State#ch{most_recently_declared_queue = ActualName}, NoWait, - #'queue.declare_ok'{queue = ActualName, - message_count = MessageCount, - consumer_count = ConsumerCount}). - -check_resource_access(Username, Resource, Perm) -> - V = {Resource, Perm}, - Cache = case get(permission_cache) of - undefined -> []; - Other -> Other - end, - CacheTail = - case lists:member(V, Cache) of - true -> lists:delete(V, Cache); - false -> ok = rabbit_access_control:check_resource_access( - Username, Resource, Perm), - lists:sublist(Cache, ?MAX_PERMISSION_CACHE_SIZE - 1) - end, - put(permission_cache, [V | CacheTail]), - ok. - -clear_permission_cache() -> - erase(permission_cache), - ok. - -check_configure_permitted(Resource, #ch{username = Username}) -> - check_resource_access(Username, Resource, configure). - -check_write_permitted(Resource, #ch{username = Username}) -> - check_resource_access(Username, Resource, write). - -check_read_permitted(Resource, #ch{username = Username}) -> - check_resource_access(Username, Resource, read). - -expand_queue_name_shortcut(<<>>, #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_queue_name_shortcut(<<>>, #ch{virtual_host = VHostPath, - most_recently_declared_queue = MRDQ}) -> - rabbit_misc:r(VHostPath, queue, MRDQ); -expand_queue_name_shortcut(QueueNameBin, #ch{virtual_host = VHostPath}) -> - rabbit_misc:r(VHostPath, queue, QueueNameBin). - -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = MRDQ}) -> - MRDQ; -expand_routing_key_shortcut(_QueueNameBin, RoutingKey, _State) -> - RoutingKey. - -expand_binding(queue, DestinationNameBin, RoutingKey, State) -> - {expand_queue_name_shortcut(DestinationNameBin, State), - expand_routing_key_shortcut(DestinationNameBin, RoutingKey, State)}; -expand_binding(exchange, DestinationNameBin, RoutingKey, State) -> - {rabbit_misc:r(State#ch.virtual_host, exchange, DestinationNameBin), - RoutingKey}. - -check_not_default_exchange(#resource{kind = exchange, name = <<"">>}) -> - rabbit_misc:protocol_error( - access_refused, "operation not permitted on the default exchange", []); -check_not_default_exchange(_) -> - ok. - -%% check that an exchange/queue name does not contain the reserved -%% "amq." prefix. -%% -%% One, quite reasonable, interpretation of the spec, taken by the -%% QPid M1 Java client, is that the exclusion of "amq." prefixed names -%% only applies on actual creation, and not in the cases where the -%% entity already exists. This is how we use this function in the code -%% below. However, AMQP JIRA 123 changes that in 0-10, and possibly -%% 0-9SP1, making it illegal to attempt to declare an exchange/queue -%% with an amq.* name when passive=false. So this will need -%% revisiting. -%% -%% TODO: enforce other constraints on name. See AMQP JIRA 69. -check_name(Kind, NameBin = <<"amq.", _/binary>>) -> - rabbit_misc:protocol_error( - access_refused, - "~s name '~s' contains reserved prefix 'amq.*'",[Kind, NameBin]); -check_name(_Kind, NameBin) -> - NameBin. - -queue_blocked(QPid, State = #ch{blocking = Blocking}) -> - case dict:find(QPid, Blocking) of - error -> State; - {ok, MRef} -> true = erlang:demonitor(MRef), - Blocking1 = dict:erase(QPid, Blocking), - ok = case dict:size(Blocking1) of - 0 -> rabbit_writer:send_command( - State#ch.writer_pid, - #'channel.flow_ok'{active = false}); - _ -> ok - end, - State#ch{blocking = Blocking1} - end. - -handle_method(#'channel.open'{}, _, State = #ch{state = starting}) -> - {reply, #'channel.open_ok'{}, State#ch{state = running}}; - -handle_method(#'channel.open'{}, _, _State) -> - rabbit_misc:protocol_error( - command_invalid, "second 'channel.open' seen", []); - -handle_method(_Method, _, #ch{state = starting}) -> - rabbit_misc:protocol_error(channel_error, "expected 'channel.open'", []); - -handle_method(#'channel.close'{}, _, State = #ch{writer_pid = WriterPid}) -> - ok = rollback_and_notify(State), - ok = rabbit_writer:send_command_sync(WriterPid, #'channel.close_ok'{}), - stop; - -handle_method(#'access.request'{},_, State) -> - {reply, #'access.request_ok'{ticket = 1}, State}; - -handle_method(#'basic.publish'{exchange = ExchangeNameBin, - routing_key = RoutingKey, - mandatory = Mandatory, - immediate = Immediate}, - Content, State = #ch{virtual_host = VHostPath, - transaction_id = TxnKey, - writer_pid = WriterPid}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_write_permitted(ExchangeName, State), - Exchange = rabbit_exchange:lookup_or_die(ExchangeName), - %% We decode the content's properties here because we're almost - %% certain to want to look at delivery-mode and priority. - DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), - IsPersistent = is_message_persistent(DecodedContent), - Message = #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = DecodedContent, - guid = rabbit_guid:guid(), - is_persistent = IsPersistent}, - {RoutingRes, DeliveredQPids} = - rabbit_exchange:publish( - Exchange, - rabbit_basic:delivery(Mandatory, Immediate, TxnKey, Message)), - case RoutingRes of - routed -> ok; - unroutable -> ok = basic_return(Message, WriterPid, no_route); - not_delivered -> ok = basic_return(Message, WriterPid, no_consumers) - end, - maybe_incr_stats([{ExchangeName, 1} | - [{{QPid, ExchangeName}, 1} || - QPid <- DeliveredQPids]], publish, State), - {noreply, case TxnKey of - none -> State; - _ -> add_tx_participants(DeliveredQPids, State) - end}; - -handle_method(#'basic.ack'{delivery_tag = DeliveryTag, - multiple = Multiple}, - _, State = #ch{transaction_id = TxnKey, - unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - QIncs = ack(TxnKey, Acked), - Participants = [QPid || {QPid, _} <- QIncs], - maybe_incr_stats(QIncs, ack, State), - {noreply, case TxnKey of - none -> ok = notify_limiter(State#ch.limiter_pid, Acked), - State#ch{unacked_message_q = Remaining}; - _ -> NewUAQ = queue:join(State#ch.uncommitted_ack_q, - Acked), - add_tx_participants( - Participants, - State#ch{unacked_message_q = Remaining, - uncommitted_ack_q = NewUAQ}) - end}; - -handle_method(#'basic.get'{queue = QueueNameBin, - no_ack = NoAck}, - _, State = #ch{writer_pid = WriterPid, - reader_pid = ReaderPid, - next_tag = DeliveryTag}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:basic_get(Q, self(), NoAck) end) of - {ok, MessageCount, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = Content}}} -> - State1 = lock_message(not(NoAck), {DeliveryTag, none, Msg}, State), - maybe_incr_stats([{QPid, 1}], - case NoAck of - true -> get_no_ack; - false -> get - end, State), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.get_ok'{delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey, - message_count = MessageCount}, - Content), - {noreply, State1#ch{next_tag = DeliveryTag + 1}}; - empty -> - {reply, #'basic.get_empty'{}, State} - end; - -handle_method(#'basic.consume'{queue = QueueNameBin, - consumer_tag = ConsumerTag, - no_local = _, % FIXME: implement - no_ack = NoAck, - exclusive = ExclusiveConsume, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid, - limiter_pid = LimiterPid, - consumer_mapping = ConsumerMapping }) -> - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - ActualConsumerTag = - case ConsumerTag of - <<>> -> rabbit_guid:binstring_guid("amq.ctag"); - Other -> Other - end, - - %% We get the queue process to send the consume_ok on our - %% behalf. This is for symmetry with basic.cancel - see - %% the comment in that method for why. - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> - rabbit_amqqueue:basic_consume( - Q, NoAck, self(), LimiterPid, - ActualConsumerTag, ExclusiveConsume, - ok_msg(NoWait, #'basic.consume_ok'{ - consumer_tag = ActualConsumerTag})) - end) of - ok -> - {noreply, State#ch{consumer_mapping = - dict:store(ActualConsumerTag, - QueueName, - ConsumerMapping)}}; - {error, exclusive_consume_unavailable} -> - rabbit_misc:protocol_error( - access_refused, "~s in exclusive use", - [rabbit_misc:rs(QueueName)]) - end; - {ok, _} -> - %% Attempted reuse of consumer tag. - rabbit_misc:protocol_error( - not_allowed, "attempt to reuse consumer tag '~s'", [ConsumerTag]) - end; - -handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, - nowait = NoWait}, - _, State = #ch{consumer_mapping = ConsumerMapping }) -> - OkMsg = #'basic.cancel_ok'{consumer_tag = ConsumerTag}, - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - %% Spec requires we ignore this situation. - return_ok(State, NoWait, OkMsg); - {ok, QueueName} -> - NewState = State#ch{consumer_mapping = - dict:erase(ConsumerTag, - ConsumerMapping)}, - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> - %% In order to ensure that no more messages - %% are sent to the consumer after the - %% cancel_ok has been sent, we get the - %% queue process to send the cancel_ok on - %% our behalf. If we were sending the - %% cancel_ok ourselves it might overtake a - %% message sent previously by the queue. - rabbit_amqqueue:basic_cancel( - Q, self(), ConsumerTag, - ok_msg(NoWait, #'basic.cancel_ok'{ - consumer_tag = ConsumerTag})) - end) of - ok -> - {noreply, NewState}; - {error, not_found} -> - %% Spec requires we ignore this situation. - return_ok(NewState, NoWait, OkMsg) - end - end; - -handle_method(#'basic.qos'{global = true}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "global=true", []); - -handle_method(#'basic.qos'{prefetch_size = Size}, _, _State) when Size /= 0 -> - rabbit_misc:protocol_error(not_implemented, - "prefetch_size!=0 (~w)", [Size]); - -handle_method(#'basic.qos'{prefetch_count = PrefetchCount}, - _, State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case {LimiterPid, PrefetchCount} of - {undefined, 0} -> undefined; - {undefined, _} -> start_limiter(State); - {_, _} -> LimiterPid - end, - LimiterPid2 = case rabbit_limiter:limit(LimiterPid1, PrefetchCount) of - ok -> LimiterPid1; - stopped -> unlimit_queues(State) - end, - {reply, #'basic.qos_ok'{}, State#ch{limiter_pid = LimiterPid2}}; - -handle_method(#'basic.recover_async'{requeue = true}, - _, State = #ch{unacked_message_q = UAMQ}) -> - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - %% The Qpid python test suite incorrectly assumes - %% that messages will be requeued in their original - %% order. To keep it happy we reverse the id list - %% since we are given them in reverse order. - rabbit_amqqueue:requeue( - QPid, lists:reverse(MsgIds), self()) - end, ok, UAMQ), - %% No answer required - basic.recover is the newer, synchronous - %% variant of this method - {noreply, State#ch{unacked_message_q = queue:new()}}; - -handle_method(#'basic.recover_async'{requeue = false}, - _, State = #ch{writer_pid = WriterPid, - unacked_message_q = UAMQ}) -> - ok = rabbit_misc:queue_fold( - fun ({_DeliveryTag, none, _Msg}, ok) -> - %% Was sent as a basic.get_ok. Don't redeliver - %% it. FIXME: appropriate? - ok; - ({DeliveryTag, ConsumerTag, - {QName, QPid, MsgId, _Redelivered, Message}}, ok) -> - %% Was sent as a proper consumer delivery. Resend - %% it as before. - %% - %% FIXME: What should happen if the consumer's been - %% cancelled since? - %% - %% FIXME: should we allocate a fresh DeliveryTag? - internal_deliver( - WriterPid, false, ConsumerTag, DeliveryTag, - {QName, QPid, MsgId, true, Message}) - end, ok, UAMQ), - %% No answer required - basic.recover is the newer, synchronous - %% variant of this method - {noreply, State}; - -handle_method(#'basic.recover'{requeue = Requeue}, Content, State) -> - {noreply, State2 = #ch{writer_pid = WriterPid}} = - handle_method(#'basic.recover_async'{requeue = Requeue}, - Content, - State), - ok = rabbit_writer:send_command(WriterPid, #'basic.recover_ok'{}), - {noreply, State2}; - -handle_method(#'basic.reject'{delivery_tag = DeliveryTag, - requeue = Requeue}, - _, State = #ch{unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, false), - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - rabbit_amqqueue:reject(QPid, MsgIds, Requeue, self()) - end, ok, Acked), - ok = notify_limiter(State#ch.limiter_pid, Acked), - {noreply, State#ch{unacked_message_q = Remaining}}; - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - type = TypeNameBin, - passive = false, - durable = Durable, - auto_delete = AutoDelete, - internal = false, - nowait = NoWait, - arguments = Args}, - _, State = #ch{virtual_host = VHostPath}) -> - CheckedType = rabbit_exchange:check_type(TypeNameBin), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - X = case rabbit_exchange:lookup(ExchangeName) of - {ok, FoundX} -> FoundX; - {error, not_found} -> - check_name('exchange', ExchangeNameBin), - case rabbit_misc:r_arg(VHostPath, exchange, Args, - <<"alternate-exchange">>) of - undefined -> ok; - AName -> check_read_permitted(ExchangeName, State), - check_write_permitted(AName, State), - ok - end, - rabbit_exchange:declare(ExchangeName, - CheckedType, - Durable, - AutoDelete, - Args) - end, - ok = rabbit_exchange:assert_equivalence(X, CheckedType, Durable, - AutoDelete, Args), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), - check_not_default_exchange(ExchangeName), - _ = rabbit_exchange:lookup_or_die(ExchangeName), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.delete'{exchange = ExchangeNameBin, - if_unused = IfUnused, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - case rabbit_exchange:delete(ExchangeName, IfUnused) of - {error, not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(ExchangeName)]); - ok -> - return_ok(State, NoWait, #'exchange.delete_ok'{}) - end; - -handle_method(#'exchange.bind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.bind_ok'{}, NoWait, State); - -handle_method(#'exchange.unbind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.unbind_ok'{}, NoWait, State); - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = false, - durable = Durable, - exclusive = ExclusiveDeclare, - auto_delete = AutoDelete, - nowait = NoWait, - arguments = Args} = Declare, - _, State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid, - queue_collector_pid = CollectorPid}) -> - Owner = case ExclusiveDeclare of - true -> ReaderPid; - false -> none - end, - ActualNameBin = case QueueNameBin of - <<>> -> rabbit_guid:binstring_guid("amq.gen"); - Other -> check_name('queue', Other) - end, - QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> ok = rabbit_amqqueue:assert_equivalence( - Q, Durable, AutoDelete, Args, Owner), - rabbit_amqqueue:stat(Q) - end) of - {ok, MessageCount, ConsumerCount} -> - return_queue_declare_ok(QueueName, NoWait, MessageCount, - ConsumerCount, State); - {error, not_found} -> - case rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, - Args, Owner) of - {new, Q = #amqqueue{}} -> - %% We need to notify the reader within the channel - %% process so that we can be sure there are no - %% outstanding exclusive queues being declared as - %% the connection shuts down. - ok = case Owner of - none -> ok; - _ -> rabbit_queue_collector:register( - CollectorPid, Q) - end, - return_queue_declare_ok(QueueName, NoWait, 0, 0, State); - {existing, _Q} -> - %% must have been created between the stat and the - %% declare. Loop around again. - handle_method(Declare, none, State) - end - end; - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid}) -> - QueueName = rabbit_misc:r(VHostPath, queue, QueueNameBin), - check_configure_permitted(QueueName, State), - {{ok, MessageCount, ConsumerCount}, #amqqueue{} = Q} = - rabbit_amqqueue:with_or_die( - QueueName, fun (Q) -> {rabbit_amqqueue:stat(Q), Q} end), - ok = rabbit_amqqueue:check_exclusive_access(Q, ReaderPid), - return_queue_declare_ok(QueueName, NoWait, MessageCount, ConsumerCount, - State); - -handle_method(#'queue.delete'{queue = QueueNameBin, - if_unused = IfUnused, - if_empty = IfEmpty, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:delete(Q, IfUnused, IfEmpty) end) of - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(QueueName)]); - {error, not_empty} -> - rabbit_misc:protocol_error( - precondition_failed, "~s not empty", [rabbit_misc:rs(QueueName)]); - {ok, PurgedMessageCount} -> - return_ok(State, NoWait, - #'queue.delete_ok'{message_count = PurgedMessageCount}) - end; - -handle_method(#'queue.bind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.bind_ok'{}, NoWait, State); - -handle_method(#'queue.unbind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.unbind_ok'{}, false, State); - -handle_method(#'queue.purge'{queue = QueueNameBin, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - {ok, PurgedMessageCount} = rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:purge(Q) end), - return_ok(State, NoWait, - #'queue.purge_ok'{message_count = PurgedMessageCount}); - -handle_method(#'tx.select'{}, _, State = #ch{transaction_id = none}) -> - {reply, #'tx.select_ok'{}, new_tx(State)}; - -handle_method(#'tx.select'{}, _, State) -> - {reply, #'tx.select_ok'{}, State}; - -handle_method(#'tx.commit'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.commit'{}, _, State) -> - {reply, #'tx.commit_ok'{}, internal_commit(State)}; - -handle_method(#'tx.rollback'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.rollback'{}, _, State) -> - {reply, #'tx.rollback_ok'{}, internal_rollback(State)}; - -handle_method(#'channel.flow'{active = true}, _, - State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case rabbit_limiter:unblock(LimiterPid) of - ok -> LimiterPid; - stopped -> unlimit_queues(State) - end, - {reply, #'channel.flow_ok'{active = true}, - State#ch{limiter_pid = LimiterPid1}}; - -handle_method(#'channel.flow'{active = false}, _, - State = #ch{limiter_pid = LimiterPid, - consumer_mapping = Consumers}) -> - LimiterPid1 = case LimiterPid of - undefined -> start_limiter(State); - Other -> Other - end, - State1 = State#ch{limiter_pid = LimiterPid1}, - ok = rabbit_limiter:block(LimiterPid1), - case consumer_queues(Consumers) of - [] -> {reply, #'channel.flow_ok'{active = false}, State1}; - QPids -> Queues = [{QPid, erlang:monitor(process, QPid)} || - QPid <- QPids], - ok = rabbit_amqqueue:flush_all(QPids, self()), - {noreply, State1#ch{blocking = dict:from_list(Queues)}} - end; - -handle_method(_MethodRecord, _Content, _State) -> - rabbit_misc:protocol_error( - command_invalid, "unimplemented method", []). - -%%---------------------------------------------------------------------------- - -binding_action(Fun, ExchangeNameBin, DestinationType, DestinationNameBin, - RoutingKey, Arguments, ReturnMethod, NoWait, - State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid}) -> - %% FIXME: connection exception (!) on failure?? - %% (see rule named "failure" in spec-XML) - %% FIXME: don't allow binding to internal exchanges - - %% including the one named "" ! - {DestinationName, ActualRoutingKey} = - expand_binding(DestinationType, DestinationNameBin, RoutingKey, State), - check_write_permitted(DestinationName, State), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - [check_not_default_exchange(N) || N <- [DestinationName, ExchangeName]], - check_read_permitted(ExchangeName, State), - case Fun(#binding{source = ExchangeName, - destination = DestinationName, - key = ActualRoutingKey, - args = Arguments}, - fun (_X, Q = #amqqueue{}) -> - try rabbit_amqqueue:check_exclusive_access(Q, ReaderPid) - catch exit:Reason -> {error, Reason} - end; - (_X, #exchange{}) -> - ok - end) of - {error, source_not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, destination_not_found} -> - rabbit_misc:not_found(DestinationName); - {error, source_and_destination_not_found} -> - rabbit_misc:protocol_error( - not_found, "no ~s and no ~s", [rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, binding_not_found} -> - rabbit_misc:protocol_error( - not_found, "no binding ~s between ~s and ~s", - [RoutingKey, rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, #amqp_error{} = Error} -> - rabbit_misc:protocol_error(Error); - ok -> return_ok(State, NoWait, ReturnMethod) - end. - -basic_return(#basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = Content}, - WriterPid, Reason) -> - {_Close, ReplyCode, ReplyText} = - rabbit_framing_amqp_0_9_1:lookup_amqp_exception(Reason), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.return'{reply_code = ReplyCode, - reply_text = ReplyText, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - Content). - -collect_acks(Q, 0, true) -> - {Q, queue:new()}; -collect_acks(Q, DeliveryTag, Multiple) -> - collect_acks(queue:new(), queue:new(), Q, DeliveryTag, Multiple). - -collect_acks(ToAcc, PrefixAcc, Q, DeliveryTag, Multiple) -> - case queue:out(Q) of - {{value, UnackedMsg = {CurrentDeliveryTag, _ConsumerTag, _Msg}}, - QTail} -> - if CurrentDeliveryTag == DeliveryTag -> - {queue:in(UnackedMsg, ToAcc), queue:join(PrefixAcc, QTail)}; - Multiple -> - collect_acks(queue:in(UnackedMsg, ToAcc), PrefixAcc, - QTail, DeliveryTag, Multiple); - true -> - collect_acks(ToAcc, queue:in(UnackedMsg, PrefixAcc), - QTail, DeliveryTag, Multiple) - end; - {empty, _} -> - rabbit_misc:protocol_error( - precondition_failed, "unknown delivery tag ~w", [DeliveryTag]) - end. - -add_tx_participants(MoreP, State = #ch{tx_participants = Participants}) -> - State#ch{tx_participants = sets:union(Participants, - sets:from_list(MoreP))}. - -ack(TxnKey, UAQ) -> - fold_per_queue( - fun (QPid, MsgIds, L) -> - ok = rabbit_amqqueue:ack(QPid, TxnKey, MsgIds, self()), - [{QPid, length(MsgIds)} | L] - end, [], UAQ). - -make_tx_id() -> rabbit_guid:guid(). - -new_tx(State) -> - State#ch{transaction_id = make_tx_id(), - tx_participants = sets:new(), - uncommitted_ack_q = queue:new()}. - -internal_commit(State = #ch{transaction_id = TxnKey, - tx_participants = Participants}) -> - case rabbit_amqqueue:commit_all(sets:to_list(Participants), - TxnKey, self()) of - ok -> ok = notify_limiter(State#ch.limiter_pid, - State#ch.uncommitted_ack_q), - new_tx(State); - {error, Errors} -> rabbit_misc:protocol_error( - internal_error, "commit failed: ~w", [Errors]) - end. - -internal_rollback(State = #ch{transaction_id = TxnKey, - tx_participants = Participants, - uncommitted_ack_q = UAQ, - unacked_message_q = UAMQ}) -> - ?LOGDEBUG("rollback ~p~n - ~p acks uncommitted, ~p messages unacked~n", - [self(), - queue:len(UAQ), - queue:len(UAMQ)]), - ok = rabbit_amqqueue:rollback_all(sets:to_list(Participants), - TxnKey, self()), - NewUAMQ = queue:join(UAQ, UAMQ), - new_tx(State#ch{unacked_message_q = NewUAMQ}). - -rollback_and_notify(State = #ch{transaction_id = none}) -> - notify_queues(State); -rollback_and_notify(State) -> - notify_queues(internal_rollback(State)). - -fold_per_queue(F, Acc0, UAQ) -> - D = rabbit_misc:queue_fold( - fun ({_DTag, _CTag, - {_QName, QPid, MsgId, _Redelivered, _Message}}, D) -> - %% dict:append would avoid the lists:reverse in - %% handle_message({recover, true}, ...). However, it - %% is significantly slower when going beyond a few - %% thousand elements. - rabbit_misc:dict_cons(QPid, MsgId, D) - end, dict:new(), UAQ), - dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, - Acc0, D). - -start_limiter(State = #ch{unacked_message_q = UAMQ, start_limiter_fun = SLF}) -> - {ok, LPid} = SLF(queue:len(UAMQ)), - ok = limit_queues(LPid, State), - LPid. - -notify_queues(#ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:notify_down_all(consumer_queues(Consumers), self()). - -unlimit_queues(State) -> - ok = limit_queues(undefined, State), - undefined. - -limit_queues(LPid, #ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:limit_all(consumer_queues(Consumers), self(), LPid). - -consumer_queues(Consumers) -> - [QPid || QueueName <- - sets:to_list( - dict:fold(fun (_ConsumerTag, QueueName, S) -> - sets:add_element(QueueName, S) - end, sets:new(), Consumers)), - case rabbit_amqqueue:lookup(QueueName) of - {ok, Q} -> QPid = Q#amqqueue.pid, true; - %% queue has been deleted in the meantime - {error, not_found} -> QPid = none, false - end]. - -%% tell the limiter about the number of acks that have been received -%% for messages delivered to subscribed consumers, but not acks for -%% messages sent in a response to a basic.get (identified by their -%% 'none' consumer tag) -notify_limiter(undefined, _Acked) -> - ok; -notify_limiter(LimiterPid, Acked) -> - case rabbit_misc:queue_fold(fun ({_, none, _}, Acc) -> Acc; - ({_, _, _}, Acc) -> Acc + 1 - end, 0, Acked) of - 0 -> ok; - Count -> rabbit_limiter:ack(LimiterPid, Count) - end. - -is_message_persistent(Content) -> - case rabbit_basic:is_message_persistent(Content) of - {invalid, Other} -> - rabbit_log:warning("Unknown delivery mode ~p - " - "treating as 1, non-persistent~n", - [Other]), - false; - IsPersistent when is_boolean(IsPersistent) -> - IsPersistent - end. - -lock_message(true, MsgStruct, State = #ch{unacked_message_q = UAMQ}) -> - State#ch{unacked_message_q = queue:in(MsgStruct, UAMQ)}; -lock_message(false, _MsgStruct, State) -> - State. - -internal_deliver(WriterPid, Notify, ConsumerTag, DeliveryTag, - {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = Content}}) -> - M = #'basic.deliver'{consumer_tag = ConsumerTag, - delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - ok = case Notify of - true -> rabbit_writer:send_command_and_notify( - WriterPid, QPid, self(), M, Content); - false -> rabbit_writer:send_command(WriterPid, M, Content) - end. - -terminate(_State) -> - pg_local:leave(rabbit_channels, self()), - rabbit_event:notify(channel_closed, [{pid, self()}]). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, _) -> self(); -i(connection, #ch{reader_pid = ReaderPid}) -> ReaderPid; -i(number, #ch{channel = Channel}) -> Channel; -i(user, #ch{username = Username}) -> Username; -i(vhost, #ch{virtual_host = VHost}) -> VHost; -i(transactional, #ch{transaction_id = TxnKey}) -> TxnKey =/= none; -i(consumer_count, #ch{consumer_mapping = ConsumerMapping}) -> - dict:size(ConsumerMapping); -i(messages_unacknowledged, #ch{unacked_message_q = UAMQ, - uncommitted_ack_q = UAQ}) -> - queue:len(UAMQ) + queue:len(UAQ); -i(acks_uncommitted, #ch{uncommitted_ack_q = UAQ}) -> - queue:len(UAQ); -i(prefetch_count, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:get_limit(LimiterPid); -i(client_flow_blocked, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:is_blocked(LimiterPid); -i(Item, _) -> - throw({bad_argument, Item}). - -maybe_incr_stats(QXIncs, Measure, #ch{stats_timer = StatsTimer}) -> - case rabbit_event:stats_level(StatsTimer) of - fine -> [incr_stats(QX, Inc, Measure) || {QX, Inc} <- QXIncs]; - _ -> ok - end. - -incr_stats({QPid, _} = QX, Inc, Measure) -> - maybe_monitor(QPid), - update_measures(queue_exchange_stats, QX, Inc, Measure); -incr_stats(QPid, Inc, Measure) when is_pid(QPid) -> - maybe_monitor(QPid), - update_measures(queue_stats, QPid, Inc, Measure); -incr_stats(X, Inc, Measure) -> - update_measures(exchange_stats, X, Inc, Measure). - -maybe_monitor(QPid) -> - case get({monitoring, QPid}) of - undefined -> erlang:monitor(process, QPid), - put({monitoring, QPid}, true); - _ -> ok - end. - -update_measures(Type, QX, Inc, Measure) -> - Measures = case get({Type, QX}) of - undefined -> []; - D -> D - end, - Cur = case orddict:find(Measure, Measures) of - error -> 0; - {ok, C} -> C - end, - put({Type, QX}, - orddict:store(Measure, Cur + Inc, Measures)). - -internal_emit_stats(State = #ch{stats_timer = StatsTimer}) -> - CoarseStats = infos(?STATISTICS_KEYS, State), - case rabbit_event:stats_level(StatsTimer) of - coarse -> - rabbit_event:notify(channel_stats, CoarseStats); - fine -> - FineStats = - [{channel_queue_stats, - [{QPid, Stats} || {{queue_stats, QPid}, Stats} <- get()]}, - {channel_exchange_stats, - [{X, Stats} || {{exchange_stats, X}, Stats} <- get()]}, - {channel_queue_exchange_stats, - [{QX, Stats} || - {{queue_exchange_stats, QX}, Stats} <- get()]}], - rabbit_event:notify(channel_stats, CoarseStats ++ FineStats) - end. - -erase_queue_stats(QPid) -> - erase({monitoring, QPid}), - erase({queue_stats, QPid}), - [erase({queue_exchange_stats, QX}) || - {{queue_exchange_stats, QX = {QPid0, _}}, _} <- get(), QPid =:= QPid0]. diff --git a/src/rabbit_channel_sup_sup.erl b/src/rabbit_channel_sup_sup.erl deleted file mode 100644 index 82bf3bc9..00000000 --- a/src/rabbit_channel_sup_sup.erl +++ /dev/null @@ -1,62 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_channel_sup_sup). - --behaviour(supervisor2). - --export([start_link/0, start_channel/2]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_channel/2 :: (pid(), rabbit_channel_sup:start_link_args()) -> - {'ok', pid(), pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor2:start_link(?MODULE, []). - -start_channel(Pid, Args) -> - supervisor2:start_child(Pid, [Args]). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{channel_sup, {rabbit_channel_sup, start_link, []}, - temporary, infinity, supervisor, [rabbit_channel_sup]}]}}. diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl deleted file mode 100644 index ccd272d6..00000000 --- a/src/rabbit_connection_sup.erl +++ /dev/null @@ -1,98 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_connection_sup). - --behaviour(supervisor2). - --export([start_link/0, reader/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(reader/1 :: (pid()) -> pid()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link() -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, ChannelSupSupPid} = - supervisor2:start_child( - SupPid, - {channel_sup_sup, {rabbit_channel_sup_sup, start_link, []}, - intrinsic, infinity, supervisor, [rabbit_channel_sup_sup]}), - {ok, Collector} = - supervisor2:start_child( - SupPid, - {collector, {rabbit_queue_collector, start_link, []}, - intrinsic, ?MAX_WAIT, worker, [rabbit_queue_collector]}), - {ok, ReaderPid} = - supervisor2:start_child( - SupPid, - {reader, {rabbit_reader, start_link, - [ChannelSupSupPid, Collector, start_heartbeat_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_reader]}), - {ok, SupPid, ReaderPid}. - -reader(Pid) -> - hd(supervisor2:find_child(Pid, reader)). - -%%-------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. - -start_heartbeat_fun(SupPid) -> - fun (_Sock, 0) -> - none; - (Sock, TimeoutSec) -> - Parent = self(), - {ok, Sender} = - supervisor2:start_child( - SupPid, {heartbeat_sender, - {rabbit_heartbeat, start_heartbeat_sender, - [Parent, Sock, TimeoutSec]}, - transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}), - {ok, Receiver} = - supervisor2:start_child( - SupPid, {heartbeat_receiver, - {rabbit_heartbeat, start_heartbeat_receiver, - [Parent, Sock, TimeoutSec]}, - transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}), - {Sender, Receiver} - end. diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl deleted file mode 100644 index 93f50110..00000000 --- a/src/rabbit_error_logger.erl +++ /dev/null @@ -1,99 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_error_logger). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(LOG_EXCH_NAME, <<"amq.rabbitmq.log">>). - --behaviour(gen_event). - --export([boot/0]). - --export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, - handle_info/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(boot/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - {ok, DefaultVHost} = application:get_env(default_vhost), - ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). - -init([DefaultVHost]) -> - #exchange{} = rabbit_exchange:declare( - rabbit_misc:r(DefaultVHost, exchange, ?LOG_EXCH_NAME), - topic, true, false, []), - {ok, #resource{virtual_host = DefaultVHost, - kind = exchange, - name = ?LOG_EXCH_NAME}}. - -terminate(_Arg, _State) -> - terminated_ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State) -> - ok = publish(Kind, Format, Data, State), - {ok, State}; -handle_event(_Event, State) -> - {ok, State}. - -handle_info(_Info, State) -> - {ok, State}. - -publish(error, Format, Data, State) -> - publish1(<<"error">>, Format, Data, State); -publish(warning_msg, Format, Data, State) -> - publish1(<<"warning">>, Format, Data, State); -publish(info_msg, Format, Data, State) -> - publish1(<<"info">>, Format, Data, State); -publish(_Other, _Format, _Data, _State) -> - ok. - -publish1(RoutingKey, Format, Data, LogExch) -> - {ok, _RoutingRes, _DeliveredQPids} = - rabbit_basic:publish(LogExch, RoutingKey, false, false, none, - #'P_basic'{content_type = <<"text/plain">>}, - list_to_binary(io_lib:format(Format, Data))), - ok. diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl deleted file mode 100644 index bd78ea22..00000000 --- a/src/rabbit_event.erl +++ /dev/null @@ -1,154 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_event). - --include("rabbit.hrl"). - --export([start_link/0]). --export([init_stats_timer/0, ensure_stats_timer/2, stop_stats_timer/1]). --export([reset_stats_timer/1]). --export([stats_level/1, if_enabled/2]). --export([notify/2]). - -%%---------------------------------------------------------------------------- - --record(state, {level, timer}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([event_type/0, event_props/0, event_timestamp/0, event/0]). - --type(event_type() :: atom()). --type(event_props() :: term()). --type(event_timestamp() :: - {non_neg_integer(), non_neg_integer(), non_neg_integer()}). - --type(event() :: #event { - type :: event_type(), - props :: event_props(), - timestamp :: event_timestamp() - }). - --type(level() :: 'none' | 'coarse' | 'fine'). - --opaque(state() :: #state { - level :: level(), - timer :: atom() - }). - --type(timer_fun() :: fun (() -> 'ok')). - --spec(init_stats_timer/0 :: () -> state()). --spec(ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). --spec(stop_stats_timer/1 :: (state()) -> state()). --spec(reset_stats_timer/1 :: (state()) -> state()). --spec(stats_level/1 :: (state()) -> level()). --spec(if_enabled/2 :: (state(), timer_fun()) -> 'ok'). --spec(notify/2 :: (event_type(), event_props()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_event:start_link({local, ?MODULE}). - -%% The idea is, for each stat-emitting object: -%% -%% On startup: -%% Timer = init_stats_timer() -%% notify(created event) -%% if_enabled(internal_emit_stats) - so we immediately send something -%% -%% On wakeup: -%% ensure_stats_timer(Timer, emit_stats) -%% (Note we can't emit stats immediately, the timer may have fired 1ms ago.) -%% -%% emit_stats: -%% if_enabled(internal_emit_stats) -%% reset_stats_timer(Timer) - just bookkeeping -%% -%% Pre-hibernation: -%% if_enabled(internal_emit_stats) -%% stop_stats_timer(Timer) -%% -%% internal_emit_stats: -%% notify(stats) - -init_stats_timer() -> - {ok, StatsLevel} = application:get_env(rabbit, collect_statistics), - #state{level = StatsLevel, timer = undefined}. - -ensure_stats_timer(State = #state{level = none}, _Fun) -> - State; -ensure_stats_timer(State = #state{timer = undefined}, Fun) -> - {ok, TRef} = timer:apply_after(?STATS_INTERVAL, - erlang, apply, [Fun, []]), - State#state{timer = TRef}; -ensure_stats_timer(State, _Fun) -> - State. - -stop_stats_timer(State = #state{level = none}) -> - State; -stop_stats_timer(State = #state{timer = undefined}) -> - State; -stop_stats_timer(State = #state{timer = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#state{timer = undefined}. - -reset_stats_timer(State) -> - State#state{timer = undefined}. - -stats_level(#state{level = Level}) -> - Level. - -if_enabled(#state{level = none}, _Fun) -> - ok; -if_enabled(_State, Fun) -> - Fun(), - ok. - -notify(Type, Props) -> - try - %% TODO: switch to os:timestamp() when we drop support for - %% Erlang/OTP < R13B01 - gen_event:notify(rabbit_event, #event{type = Type, - props = Props, - timestamp = now()}) - catch error:badarg -> - %% badarg means rabbit_event is no longer registered. We never - %% unregister it so the great likelihood is that we're shutting - %% down the broker but some events were backed up. Ignore it. - ok - end. diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl deleted file mode 100644 index e81f9e55..00000000 --- a/src/rabbit_exchange_type.erl +++ /dev/null @@ -1,88 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type). - --export([behaviour_info/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(behaviour_info/1 :: - (_) -> - 'undefined' | - [{'add_binding' | - 'assert_args_equivalence' | - 'create' | - 'delete' | - 'description' | - 'recover' | - 'remove_bindings' | - 'route' | - 'validate', - 0 | 1 | 2}, - ...]). - --endif. - -%%---------------------------------------------------------------------------- - -behaviour_info(callbacks) -> - [ - {description, 0}, - {route, 2}, - - %% called BEFORE declaration, to check args etc; may exit with #amqp_error{} - {validate, 1}, - - %% called after declaration when previously absent - {create, 1}, - - %% called when recovering - {recover, 2}, - - %% called after exchange deletion. - {delete, 2}, - - %% called after a binding has been added - {add_binding, 2}, - - %% called after bindings have been deleted. - {remove_bindings, 2}, - - %% called when comparing exchanges for equivalence - should return ok or - %% exit with #amqp_error{} - {assert_args_equivalence, 2} - - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_exchange_type_registry.erl b/src/rabbit_exchange_type_registry.erl deleted file mode 100644 index 690d0d2d..00000000 --- a/src/rabbit_exchange_type_registry.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_exchange_type_registry). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --export([register/2, binary_to_type/1, lookup_module/1]). - --define(SERVER, ?MODULE). --define(ETS_NAME, ?MODULE). - --ifdef(use_specs). - --spec(register/2 :: (binary(), atom()) -> 'ok'). --spec(binary_to_type/1 :: - (binary()) -> atom() | rabbit_types:error('not_found')). --spec(lookup_module/1 :: - (atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). - --endif. - -%%--------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -register(TypeName, ModuleName) -> - gen_server:call(?SERVER, {register, TypeName, ModuleName}). - -%% This is used with user-supplied arguments (e.g., on exchange -%% declare), so we restrict it to existing atoms only. This means it -%% can throw a badarg, indicating that the type cannot have been -%% registered. -binary_to_type(TypeBin) when is_binary(TypeBin) -> - case catch list_to_existing_atom(binary_to_list(TypeBin)) of - {'EXIT', {badarg, _}} -> {error, not_found}; - TypeAtom -> TypeAtom - end. - -lookup_module(T) when is_atom(T) -> - case ets:lookup(?ETS_NAME, T) of - [{_, Module}] -> - {ok, Module}; - [] -> - {error, not_found} - end. - -%%--------------------------------------------------------------------------- - -internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> - list_to_atom(binary_to_list(TypeBin)). - -internal_register(TypeName, ModuleName) - when is_binary(TypeName), is_atom(ModuleName) -> - ok = sanity_check_module(ModuleName), - true = ets:insert(?ETS_NAME, - {internal_binary_to_type(TypeName), ModuleName}), - ok. - -sanity_check_module(Module) -> - case catch lists:member(rabbit_exchange_type, - lists:flatten( - [Bs || {Attr, Bs} <- - Module:module_info(attributes), - Attr =:= behavior orelse - Attr =:= behaviour])) of - {'EXIT', {undef, _}} -> {error, not_module}; - false -> {error, not_exchange_type}; - true -> ok - end. - -%%--------------------------------------------------------------------------- - -init([]) -> - ?ETS_NAME = ets:new(?ETS_NAME, [protected, set, named_table]), - {ok, none}. - -handle_call({register, TypeName, ModuleName}, _From, State) -> - ok = internal_register(TypeName, ModuleName), - {reply, ok, State}; -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_framing_channel.erl b/src/rabbit_framing_channel.erl deleted file mode 100644 index bb0152e9..00000000 --- a/src/rabbit_framing_channel.erl +++ /dev/null @@ -1,140 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_framing_channel). --include("rabbit.hrl"). - --export([start_link/3, process/2, shutdown/1]). - -%% internal --export([mainloop/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(mainloop/3 :: (_,_,_) -> any()). --spec(process/2 :: (atom() | pid() | port() | {atom(),atom()},_) -> 'ok'). --spec(shutdown/1 :: (atom() | pid() | port() | {atom(),atom()}) -> 'ok'). --spec(start_link/3 :: (_,_,_) -> {'ok',pid()}). - --endif. - -%%-------------------------------------------------------------------- - -start_link(Parent, ChannelPid, Protocol) -> - {ok, proc_lib:spawn_link( - fun () -> mainloop(Parent, ChannelPid, Protocol) end)}. - -process(Pid, Frame) -> - Pid ! {frame, Frame}, - ok. - -shutdown(Pid) -> - Pid ! terminate, - ok. - -%%-------------------------------------------------------------------- - -read_frame(ChannelPid) -> - receive - {frame, Frame} -> Frame; - terminate -> rabbit_channel:shutdown(ChannelPid), - read_frame(ChannelPid); - Msg -> exit({unexpected_message, Msg}) - end. - -mainloop(Parent, ChannelPid, Protocol) -> - case read_frame(ChannelPid) of - {method, MethodName, FieldsBin} -> - Method = Protocol:decode_method_fields(MethodName, FieldsBin), - case Protocol:method_has_content(MethodName) of - true -> {ClassId, _MethodId} = Protocol:method_id(MethodName), - case collect_content(ChannelPid, ClassId, Protocol) of - {ok, Content} -> - rabbit_channel:do(ChannelPid, Method, Content), - ?MODULE:mainloop(Parent, ChannelPid, Protocol); - {error, Reason} -> - channel_exit(Parent, Reason, MethodName) - end; - false -> rabbit_channel:do(ChannelPid, Method), - ?MODULE:mainloop(Parent, ChannelPid, Protocol) - end; - _ -> - channel_exit(Parent, {unexpected_frame, - "expected method frame, " - "got non method frame instead", - []}, none) - end. - -collect_content(ChannelPid, ClassId, Protocol) -> - case read_frame(ChannelPid) of - {content_header, ClassId, 0, BodySize, PropertiesBin} -> - case collect_content_payload(ChannelPid, BodySize, []) of - {ok, Payload} -> {ok, #content{ - class_id = ClassId, - properties = none, - properties_bin = PropertiesBin, - protocol = Protocol, - payload_fragments_rev = Payload}}; - Error -> Error - end; - {content_header, HeaderClassId, 0, _BodySize, _PropertiesBin} -> - {error, {unexpected_frame, - "expected content header for class ~w, " - "got one for class ~w instead", - [ClassId, HeaderClassId]}}; - _ -> - {error, {unexpected_frame, - "expected content header for class ~w, " - "got non content header frame instead", - [ClassId]}} - end. - -collect_content_payload(_ChannelPid, 0, Acc) -> - {ok, Acc}; -collect_content_payload(ChannelPid, RemainingByteCount, Acc) -> - case read_frame(ChannelPid) of - {content_body, FragmentBin} -> - collect_content_payload(ChannelPid, - RemainingByteCount - size(FragmentBin), - [FragmentBin | Acc]); - _ -> - {error, {unexpected_frame, - "expected content body, " - "got non content body frame instead", - []}} - end. - -channel_exit(Parent, {ErrorName, ExplanationFormat, Params}, MethodName) -> - Reason = rabbit_misc:amqp_error(ErrorName, ExplanationFormat, Params, - MethodName), - Parent ! {channel_exit, self(), Reason}. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl deleted file mode 100644 index 8ac55367..00000000 --- a/src/rabbit_guid.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_guid). - --behaviour(gen_server). - --export([start_link/0]). --export([guid/0, string_guid/1, binstring_guid/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_serial"). - --record(state, {serial}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([guid/0]). - --type(guid() :: binary()). - --spec(guid/0 :: () -> guid()). --spec(string_guid/1 :: (any()) -> string()). --spec(binstring_guid/1 :: (any()) -> binary()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(rabbit_mnesia:dir(), ?SERIAL_FILENAME), - Serial = case rabbit_misc:read_term_file(Filename) of - {ok, [Num]} -> Num; - {error, enoent} -> 0; - {error, Reason} -> - throw({error, {cannot_read_serial_file, Filename, Reason}}) - end, - case rabbit_misc:write_term_file(Filename, [Serial + 1]) of - ok -> ok; - {error, Reason1} -> - throw({error, {cannot_write_serial_file, Filename, Reason1}}) - end, - Serial. - -%% generate a GUID. -%% -%% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. -guid() -> - %% We don't use erlang:now() here because a) it may return - %% duplicates when the system clock has been rewound prior to a - %% restart, or ids were generated at a high rate (which causes - %% now() to move ahead of the system time), and b) it is really - %% slow since it takes a global lock and makes a system call. - %% - %% A persisted serial number, in combination with self/0 (which - %% includes the node name) uniquely identifies a process in space - %% and time. We combine that with a process-local counter to give - %% us a GUID. - G = case get(guid) of - undefined -> {{gen_server:call(?SERVER, serial, infinity), self()}, - 0}; - {S, I} -> {S, I+1} - end, - put(guid, G), - erlang:md5(term_to_binary(G)). - -%% generate a readable string representation of a GUID. -string_guid(Prefix) -> - Prefix ++ "-" ++ base64:encode_to_string(guid()). - -binstring_guid(Prefix) -> - list_to_binary(string_guid(Prefix)). - -%%---------------------------------------------------------------------------- - -init([Serial]) -> - {ok, #state{serial = Serial}}. - -handle_call(serial, _From, State = #state{serial = Serial}) -> - {reply, Serial, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl deleted file mode 100644 index 74bd100f..00000000 --- a/src/rabbit_limiter.erl +++ /dev/null @@ -1,249 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_limiter). - --behaviour(gen_server2). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, prioritise_call/3]). --export([start_link/2]). --export([limit/2, can_send/3, ack/2, register/2, unregister/2]). --export([get_limit/1, block/1, unblock/1, is_blocked/1]). - -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = dict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(maybe_pid() :: pid() | 'undefined'). - --spec(start_link/2 :: (pid(), non_neg_integer()) -> - rabbit_types:ok_pid_or_error()). --spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok' | 'stopped'). --spec(can_send/3 :: (maybe_pid(), pid(), boolean()) -> boolean()). --spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(get_limit/1 :: (maybe_pid()) -> non_neg_integer()). --spec(block/1 :: (maybe_pid()) -> 'ok'). --spec(unblock/1 :: (maybe_pid()) -> 'ok' | 'stopped'). --spec(is_blocked/1 :: (maybe_pid()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- -%% API -%%---------------------------------------------------------------------------- - -start_link(ChPid, UnackedMsgCount) -> - gen_server2:start_link(?MODULE, [ChPid, UnackedMsgCount], []). - -limit(undefined, 0) -> - ok; -limit(LimiterPid, PrefetchCount) -> - gen_server2:call(LimiterPid, {limit, PrefetchCount}). - -%% Ask the limiter whether the queue can deliver a message without -%% breaching a limit -can_send(undefined, _QPid, _AckRequired) -> - true; -can_send(LimiterPid, QPid, AckRequired) -> - rabbit_misc:with_exit_handler( - fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, - infinity) end). - -%% Let the limiter know that the channel has received some acks from a -%% consumer -ack(undefined, _Count) -> ok; -ack(LimiterPid, Count) -> gen_server2:cast(LimiterPid, {ack, Count}). - -register(undefined, _QPid) -> ok; -register(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {register, QPid}). - -unregister(undefined, _QPid) -> ok; -unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}). - -get_limit(undefined) -> - 0; -get_limit(Pid) -> - rabbit_misc:with_exit_handler( - fun () -> 0 end, - fun () -> gen_server2:call(Pid, get_limit, infinity) end). - -block(undefined) -> - ok; -block(LimiterPid) -> - gen_server2:call(LimiterPid, block, infinity). - -unblock(undefined) -> - ok; -unblock(LimiterPid) -> - gen_server2:call(LimiterPid, unblock, infinity). - -is_blocked(undefined) -> - false; -is_blocked(LimiterPid) -> - gen_server2:call(LimiterPid, is_blocked, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([ChPid, UnackedMsgCount]) -> - {ok, #lim{ch_pid = ChPid, volume = UnackedMsgCount}}. - -prioritise_call(get_limit, _From, _State) -> 9; -prioritise_call(_Msg, _From, _State) -> 0. - -handle_call({can_send, _QPid, _AckRequired}, _From, - State = #lim{blocked = true}) -> - {reply, false, State}; -handle_call({can_send, QPid, AckRequired}, _From, - State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} - end; - -handle_call(get_limit, _From, State = #lim{prefetch_count = PrefetchCount}) -> - {reply, PrefetchCount, State}; - -handle_call({limit, PrefetchCount}, _From, State) -> - case maybe_notify(State, State#lim{prefetch_count = PrefetchCount}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(block, _From, State) -> - {reply, ok, State#lim{blocked = true}}; - -handle_call(unblock, _From, State) -> - case maybe_notify(State, State#lim{blocked = false}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(is_blocked, _From, State) -> - {reply, blocked(State), State}. - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {cont, State1} = maybe_notify(State, State#lim{volume = NewVolume}), - {noreply, State1}; - -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; - -handle_cast({unregister, QPid}, State) -> - {noreply, forget_queue(QPid, State)}. - -handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> - {noreply, forget_queue(QPid, State)}. - -terminate(_, _) -> - ok. - -code_change(_, State, _) -> - State. - -%%---------------------------------------------------------------------------- -%% Internal plumbing -%%---------------------------------------------------------------------------- - -maybe_notify(OldState, NewState) -> - case (limit_reached(OldState) orelse blocked(OldState)) andalso - not (limit_reached(NewState) orelse blocked(NewState)) of - true -> NewState1 = notify_queues(NewState), - {case NewState1#lim.prefetch_count of - 0 -> stop; - _ -> cont - end, NewState1}; - false -> {cont, NewState} - end. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -blocked(#lim{blocked = Blocked}) -> Blocked. - -remember_queue(QPid, State = #lim{queues = Queues}) -> - case dict:is_key(QPid, Queues) of - false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = dict:store(QPid, {MRef, false}, Queues)}; - true -> State - end. - -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> - case dict:find(QPid, Queues) of - {ok, {MRef, _}} -> - true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), - State#lim{queues = dict:erase(QPid, Queues)}; - error -> State - end. - -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, - State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. - -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - dict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], dict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, - State#lim{queues = NewQueues}. diff --git a/src/rabbit_log.erl b/src/rabbit_log.erl deleted file mode 100644 index 1aa4adc9..00000000 --- a/src/rabbit_log.erl +++ /dev/null @@ -1,151 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_log). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([debug/1, debug/2, message/4, info/1, info/2, - warning/1, warning/2, error/1, error/2]). - --import(io). --import(error_logger). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(debug/1 :: (string()) -> 'ok'). --spec(debug/2 :: (string(), [any()]) -> 'ok'). --spec(info/1 :: (string()) -> 'ok'). --spec(info/2 :: (string(), [any()]) -> 'ok'). --spec(warning/1 :: (string()) -> 'ok'). --spec(warning/2 :: (string(), [any()]) -> 'ok'). --spec(error/1 :: (string()) -> 'ok'). --spec(error/2 :: (string(), [any()]) -> 'ok'). - --spec(message/4 :: (_,_,_,_) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -debug(Fmt) -> - gen_server:cast(?SERVER, {debug, Fmt}). - -debug(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {debug, Fmt, Args}). - -message(Direction, Channel, MethodRecord, Content) -> - gen_server:cast(?SERVER, - {message, Direction, Channel, MethodRecord, Content}). - -info(Fmt) -> - gen_server:cast(?SERVER, {info, Fmt}). - -info(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {info, Fmt, Args}). - -warning(Fmt) -> - gen_server:cast(?SERVER, {warning, Fmt}). - -warning(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {warning, Fmt, Args}). - -error(Fmt) -> - gen_server:cast(?SERVER, {error, Fmt}). - -error(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {error, Fmt, Args}). - -%%-------------------------------------------------------------------- - -init([]) -> {ok, none}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({debug, Fmt}, State) -> - io:format("debug:: "), io:format(Fmt), - error_logger:info_msg("debug:: " ++ Fmt), - {noreply, State}; -handle_cast({debug, Fmt, Args}, State) -> - io:format("debug:: "), io:format(Fmt, Args), - error_logger:info_msg("debug:: " ++ Fmt, Args), - {noreply, State}; -handle_cast({message, Direction, Channel, MethodRecord, Content}, State) -> - io:format("~s ch~p ~p~n", - [case Direction of - in -> "-->"; - out -> "<--" end, - Channel, - {MethodRecord, Content}]), - {noreply, State}; -handle_cast({info, Fmt}, State) -> - error_logger:info_msg(Fmt), - {noreply, State}; -handle_cast({info, Fmt, Args}, State) -> - error_logger:info_msg(Fmt, Args), - {noreply, State}; -handle_cast({warning, Fmt}, State) -> - error_logger:warning_msg(Fmt), - {noreply, State}; -handle_cast({warning, Fmt, Args}, State) -> - error_logger:warning_msg(Fmt, Args), - {noreply, State}; -handle_cast({error, Fmt}, State) -> - error_logger:error_msg(Fmt), - {noreply, State}; -handle_cast({error, Fmt, Args}, State) -> - error_logger:error_msg(Fmt, Args), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl deleted file mode 100644 index 851d7692..00000000 --- a/src/rabbit_memory_monitor.erl +++ /dev/null @@ -1,293 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - - -%% This module handles the node-wide memory statistics. -%% It receives statistics from all queues, counts the desired -%% queue length (in seconds), and sends this information back to -%% queues. - --module(rabbit_memory_monitor). - --behaviour(gen_server2). - --export([start_link/0, update/0, register/2, deregister/1, - report_ram_duration/2, stop/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(process, {pid, reported, sent, callback, monitor}). - --record(state, {timer, %% 'internal_update' timer - queue_durations, %% ets #process - queue_duration_sum, %% sum of all queue_durations - queue_duration_count, %% number of elements in sum - memory_limit, %% how much memory we intend to use - desired_duration %% the desired queue duration - }). - --define(SERVER, ?MODULE). --define(DEFAULT_UPDATE_INTERVAL, 2500). --define(TABLE_NAME, ?MODULE). - -%% Because we have a feedback loop here, we need to ensure that we -%% have some space for when the queues don't quite respond as fast as -%% we would like, or when there is buffering going on in other parts -%% of the system. In short, we aim to stay some distance away from -%% when the memory alarms will go off, which cause channel.flow. -%% Note that all other Thresholds are relative to this scaling. --define(MEMORY_LIMIT_SCALING, 0.4). - --define(LIMIT_THRESHOLD, 0.5). %% don't limit queues when mem use is < this - -%% If all queues are pushed to disk (duration 0), then the sum of -%% their reported lengths will be 0. If memory then becomes available, -%% unless we manually intervene, the sum will remain 0, and the queues -%% will never get a non-zero duration. Thus when the mem use is < -%% SUM_INC_THRESHOLD, increase the sum artificially by SUM_INC_AMOUNT. --define(SUM_INC_THRESHOLD, 0.95). --define(SUM_INC_AMOUNT, 1.0). - -%% If user disabled vm_memory_monitor, let's assume 1GB of memory we can use. --define(MEMORY_SIZE_FOR_DISABLED_VMM, 1073741824). - --define(EPSILON, 0.000001). %% less than this and we clamp to 0 - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(update/0 :: () -> 'ok'). --spec(register/2 :: (pid(), {atom(),atom(),[any()]}) -> 'ok'). --spec(deregister/1 :: (pid()) -> 'ok'). --spec(report_ram_duration/2 :: - (pid(), float() | 'infinity') -> number() | 'infinity'). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -update() -> - gen_server2:cast(?SERVER, update). - -register(Pid, MFA = {_M, _F, _A}) -> - gen_server2:call(?SERVER, {register, Pid, MFA}, infinity). - -deregister(Pid) -> - gen_server2:cast(?SERVER, {deregister, Pid}). - -report_ram_duration(Pid, QueueDuration) -> - gen_server2:call(?SERVER, - {report_ram_duration, Pid, QueueDuration}, infinity). - -stop() -> - gen_server2:cast(?SERVER, stop). - -%%---------------------------------------------------------------------------- -%% Gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - MemoryLimit = trunc(?MEMORY_LIMIT_SCALING * - (try - vm_memory_monitor:get_memory_limit() - catch - exit:{noproc, _} -> ?MEMORY_SIZE_FOR_DISABLED_VMM - end)), - - {ok, TRef} = timer:apply_interval(?DEFAULT_UPDATE_INTERVAL, - ?SERVER, update, []), - - Ets = ets:new(?TABLE_NAME, [set, private, {keypos, #process.pid}]), - - {ok, internal_update( - #state { timer = TRef, - queue_durations = Ets, - queue_duration_sum = 0.0, - queue_duration_count = 0, - memory_limit = MemoryLimit, - desired_duration = infinity })}. - -handle_call({report_ram_duration, Pid, QueueDuration}, From, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations, - desired_duration = SendDuration }) -> - - [Proc = #process { reported = PrevQueueDuration }] = - ets:lookup(Durations, Pid), - - gen_server2:reply(From, SendDuration), - - {Sum1, Count1} = - case {PrevQueueDuration, QueueDuration} of - {infinity, infinity} -> {Sum, Count}; - {infinity, _} -> {Sum + QueueDuration, Count + 1}; - {_, infinity} -> {Sum - PrevQueueDuration, Count - 1}; - {_, _} -> {Sum - PrevQueueDuration + QueueDuration, - Count} - end, - true = ets:insert(Durations, Proc #process { reported = QueueDuration, - sent = SendDuration }), - {noreply, State #state { queue_duration_sum = zero_clamp(Sum1), - queue_duration_count = Count1 }}; - -handle_call({register, Pid, MFA}, _From, - State = #state { queue_durations = Durations }) -> - MRef = erlang:monitor(process, Pid), - true = ets:insert(Durations, #process { pid = Pid, reported = infinity, - sent = infinity, callback = MFA, - monitor = MRef }), - {reply, ok, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast({deregister, Pid}, State) -> - {noreply, internal_deregister(Pid, true, State)}; - -handle_cast(stop, State) -> - {stop, normal, State}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, State) -> - {noreply, internal_deregister(Pid, false, State)}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state { timer = TRef }) -> - timer:cancel(TRef), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -zero_clamp(Sum) -> - case Sum < ?EPSILON of - true -> 0.0; - false -> Sum - end. - -internal_deregister(Pid, Demonitor, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations }) -> - case ets:lookup(Durations, Pid) of - [] -> State; - [#process { reported = PrevQueueDuration, monitor = MRef }] -> - true = case Demonitor of - true -> erlang:demonitor(MRef); - false -> true - end, - {Sum1, Count1} = - case PrevQueueDuration of - infinity -> {Sum, Count}; - _ -> {zero_clamp(Sum - PrevQueueDuration), - Count - 1} - end, - true = ets:delete(Durations, Pid), - State #state { queue_duration_sum = Sum1, - queue_duration_count = Count1 } - end. - -internal_update(State = #state { memory_limit = Limit, - queue_durations = Durations, - desired_duration = DesiredDurationAvg, - queue_duration_sum = Sum, - queue_duration_count = Count }) -> - MemoryRatio = erlang:memory(total) / Limit, - DesiredDurationAvg1 = - case MemoryRatio < ?LIMIT_THRESHOLD orelse Count == 0 of - true -> - infinity; - false -> - Sum1 = case MemoryRatio < ?SUM_INC_THRESHOLD of - true -> Sum + ?SUM_INC_AMOUNT; - false -> Sum - end, - (Sum1 / Count) / MemoryRatio - end, - State1 = State #state { desired_duration = DesiredDurationAvg1 }, - - %% only inform queues immediately if the desired duration has - %% decreased - case DesiredDurationAvg1 == infinity orelse - (DesiredDurationAvg /= infinity andalso - DesiredDurationAvg1 >= DesiredDurationAvg) of - true -> - ok; - false -> - true = - ets:foldl( - fun (Proc = #process { reported = QueueDuration, - sent = PrevSendDuration, - callback = {M, F, A} }, true) -> - case (case {QueueDuration, PrevSendDuration} of - {infinity, infinity} -> - true; - {infinity, D} -> - DesiredDurationAvg1 < D; - {D, infinity} -> - DesiredDurationAvg1 < D; - {D1, D2} -> - DesiredDurationAvg1 < - lists:min([D1,D2]) - end) of - true -> - ok = erlang:apply( - M, F, A ++ [DesiredDurationAvg1]), - ets:insert( - Durations, - Proc #process {sent = DesiredDurationAvg1}); - false -> - true - end - end, true, Durations) - end, - State1. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl deleted file mode 100644 index 1cb1bfc4..00000000 --- a/src/rabbit_mnesia.erl +++ /dev/null @@ -1,583 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - - --module(rabbit_mnesia). - --export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/1, force_cluster/1, reset/0, force_reset/0, - is_clustered/0, empty_ram_only_tables/0]). - --export([table_names/0]). - -%% create_tables/0 exported for helping embed RabbitMQ in or alongside -%% other mnesia-using Erlang applications, such as ejabberd --export([create_tables/0]). - --include("rabbit.hrl"). - --define(SCHEMA_VERSION_SET, []). --define(SCHEMA_VERSION_FILENAME, "schema_version"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([node_type/0]). - --type(node_type() :: disc_only | disc | ram | unknown). --spec(status/0 :: () -> [{'nodes', [{node_type(), [node()]}]} | - {'running_nodes', [node()]}]). --spec(dir/0 :: () -> file:filename()). --spec(ensure_mnesia_dir/0 :: () -> 'ok'). --spec(init/0 :: () -> 'ok'). --spec(is_db_empty/0 :: () -> boolean()). --spec(cluster/1 :: ([node()]) -> 'ok'). --spec(force_cluster/1 :: ([node()]) -> 'ok'). --spec(cluster/2 :: ([node()], boolean()) -> 'ok'). --spec(reset/0 :: () -> 'ok'). --spec(force_reset/0 :: () -> 'ok'). --spec(is_clustered/0 :: () -> boolean()). --spec(empty_ram_only_tables/0 :: () -> 'ok'). --spec(create_tables/0 :: () -> 'ok'). - --spec(table_names/0 :: - () -> - ['rabbit_durable_exchange' | - 'rabbit_durable_queue' | - 'rabbit_durable_route' | - 'rabbit_exchange' | - 'rabbit_listener' | - 'rabbit_queue' | - 'rabbit_reverse_route' | - 'rabbit_route' | - 'rabbit_user' | - 'rabbit_user_permission' | - 'rabbit_vhost']). - --endif. - -%%---------------------------------------------------------------------------- - -status() -> - [{nodes, case mnesia:system_info(is_running) of - yes -> [{Key, Nodes} || - {Key, CopyType} <- [{disc_only, disc_only_copies}, - {disc, disc_copies}, - {ram, ram_copies}], - begin - Nodes = nodes_of_type(CopyType), - Nodes =/= [] - end]; - no -> case mnesia:system_info(db_nodes) of - [] -> []; - Nodes -> [{unknown, Nodes}] - end - end}, - {running_nodes, mnesia:system_info(running_db_nodes)}]. - -init() -> - ok = ensure_mnesia_running(), - ok = ensure_mnesia_dir(), - ok = init_db(read_cluster_nodes_config(), true), - ok = rabbit_misc:write_term_file(filename:join( - dir(), ?SCHEMA_VERSION_FILENAME), - [?SCHEMA_VERSION_SET]), - ok. - -is_db_empty() -> - lists:all(fun (Tab) -> mnesia:dirty_first(Tab) == '$end_of_table' end, - table_names()). - -cluster(ClusterNodes) -> - cluster(ClusterNodes, false). -force_cluster(ClusterNodes) -> - cluster(ClusterNodes, true). - -%% Alter which disk nodes this node is clustered with. This can be a -%% subset of all the disk nodes in the cluster but can (and should) -%% include the node itself if it is to be a disk rather than a ram -%% node. If Force is false, only connections to online nodes are -%% allowed. -cluster(ClusterNodes, Force) -> - ok = ensure_mnesia_not_running(), - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - try - ok = init_db(ClusterNodes, Force), - ok = create_cluster_nodes_config(ClusterNodes) - after - mnesia:stop() - end, - ok. - -%% return node to its virgin state, where it is not member of any -%% cluster, has no cluster configuration, no local database, and no -%% persisted messages -reset() -> reset(false). -force_reset() -> reset(true). - -is_clustered() -> - RunningNodes = mnesia:system_info(running_db_nodes), - [node()] /= RunningNodes andalso [] /= RunningNodes. - -empty_ram_only_tables() -> - Node = node(), - lists:foreach( - fun (TabName) -> - case lists:member(Node, mnesia:table_info(TabName, ram_copies)) of - true -> {atomic, ok} = mnesia:clear_table(TabName); - false -> ok - end - end, table_names()), - ok. - -%%-------------------------------------------------------------------- - -nodes_of_type(Type) -> - %% This function should return the nodes of a certain type (ram, - %% disc or disc_only) in the current cluster. The type of nodes - %% is determined when the cluster is initially configured. - %% Specifically, we check whether a certain table, which we know - %% will be written to disk on a disc node, is stored on disk or in - %% RAM. - mnesia:table_info(rabbit_durable_exchange, Type). - -table_definitions() -> - [{rabbit_user, - [{record_name, user}, - {attributes, record_info(fields, user)}, - {disc_copies, [node()]}, - {match, #user{_='_'}}]}, - {rabbit_user_permission, - [{record_name, user_permission}, - {attributes, record_info(fields, user_permission)}, - {disc_copies, [node()]}, - {match, #user_permission{user_vhost = #user_vhost{_='_'}, - permission = #permission{_='_'}, - _='_'}}]}, - {rabbit_vhost, - [{record_name, vhost}, - {attributes, record_info(fields, vhost)}, - {disc_copies, [node()]}, - {match, #vhost{_='_'}}]}, - {rabbit_listener, - [{record_name, listener}, - {attributes, record_info(fields, listener)}, - {type, bag}, - {match, #listener{_='_'}}]}, - {rabbit_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {disc_copies, [node()]}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_reverse_route, - [{record_name, reverse_route}, - {attributes, record_info(fields, reverse_route)}, - {type, ordered_set}, - {match, #reverse_route{reverse_binding = reverse_binding_match(), - _='_'}}]}, - %% Consider the implications to nodes_of_type/1 before altering - %% the next entry. - {rabbit_durable_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {disc_copies, [node()]}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_durable_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {disc_copies, [node()]}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}, - {rabbit_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}]. - -binding_match() -> - #binding{source = exchange_name_match(), - destination = binding_destination_match(), - _='_'}. -reverse_binding_match() -> - #reverse_binding{destination = binding_destination_match(), - source = exchange_name_match(), - _='_'}. -binding_destination_match() -> - resource_match('_'). -exchange_name_match() -> - resource_match(exchange). -queue_name_match() -> - resource_match(queue). -resource_match(Kind) -> - #resource{kind = Kind, _='_'}. - -table_names() -> - [Tab || {Tab, _} <- table_definitions()]. - -replicated_table_names() -> - [Tab || {Tab, TabDef} <- table_definitions(), - not lists:member({local_content, true}, TabDef) - ]. - -dir() -> mnesia:system_info(directory). - -ensure_mnesia_dir() -> - MnesiaDir = dir() ++ "/", - case filelib:ensure_dir(MnesiaDir) of - {error, Reason} -> - throw({error, {cannot_create_mnesia_dir, MnesiaDir, Reason}}); - ok -> - ok - end. - -ensure_mnesia_running() -> - case mnesia:system_info(is_running) of - yes -> ok; - no -> throw({error, mnesia_not_running}) - end. - -ensure_mnesia_not_running() -> - case mnesia:system_info(is_running) of - no -> ok; - yes -> throw({error, mnesia_unexpectedly_running}) - end. - -ensure_schema_integrity() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - throw({error, {schema_integrity_check_failed, Reason}}) - end. - -check_schema_integrity() -> - Tables = mnesia:system_info(tables), - case [Error || {Tab, TabDef} <- table_definitions(), - case lists:member(Tab, Tables) of - false -> - Error = {table_missing, Tab}, - true; - true -> - {_, ExpAttrs} = proplists:lookup(attributes, TabDef), - Attrs = mnesia:table_info(Tab, attributes), - Error = {table_attributes_mismatch, Tab, - ExpAttrs, Attrs}, - Attrs /= ExpAttrs - end] of - [] -> check_table_integrity(); - Errors -> {error, Errors} - end. - -check_table_integrity() -> - ok = wait_for_tables(), - case lists:all(fun ({Tab, TabDef}) -> - {_, Match} = proplists:lookup(match, TabDef), - read_test_table(Tab, Match) - end, table_definitions()) of - true -> ok; - false -> {error, invalid_table_content} - end. - -read_test_table(Tab, Match) -> - case mnesia:dirty_first(Tab) of - '$end_of_table' -> - true; - Key -> - ObjList = mnesia:dirty_read(Tab, Key), - MatchComp = ets:match_spec_compile([{Match, [], ['$_']}]), - case ets:match_spec_run(ObjList, MatchComp) of - ObjList -> true; - _ -> false - end - end. - -%% The cluster node config file contains some or all of the disk nodes -%% that are members of the cluster this node is / should be a part of. -%% -%% If the file is absent, the list is empty, or only contains the -%% current node, then the current node is a standalone (disk) -%% node. Otherwise it is a node that is part of a cluster as either a -%% disk node, if it appears in the cluster node config, or ram node if -%% it doesn't. - -cluster_nodes_config_filename() -> - dir() ++ "/cluster_nodes.config". - -create_cluster_nodes_config(ClusterNodes) -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:write_term_file(FileName, [ClusterNodes]) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_cluster_nodes_config, - FileName, Reason}}) - end. - -read_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - {ok, ClusterNodes} = application:get_env(rabbit, cluster_nodes), - ClusterNodes; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - FileName, Reason}}) - end. - -delete_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> - throw({error, {cannot_delete_cluster_nodes_config, - FileName, Reason}}) - end. - -%% Take a cluster node config and create the right kind of node - a -%% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. If Force is false, don't allow -%% connections to offline nodes. -init_db(ClusterNodes, Force) -> - UClusterNodes = lists:usort(ClusterNodes), - ProperClusterNodes = UClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ProperClusterNodes) of - {ok, Nodes} -> - case Force of - false -> - FailedClusterNodes = ProperClusterNodes -- Nodes, - case FailedClusterNodes of - [] -> ok; - _ -> - throw({error, {failed_to_cluster_with, - FailedClusterNodes, - "Mnesia could not connect to some nodes."}}) - end; - _ -> ok - end, - case Nodes of - [] -> - case mnesia:system_info(use_dir) of - true -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - %% NB: we cannot use rabbit_log here since - %% it may not have been started yet - error_logger:warning_msg( - "schema integrity check failed: ~p~n" - "moving database to backup location " - "and recreating schema from scratch~n", - [Reason]), - ok = move_db(), - ok = create_schema() - end; - false -> - ok = create_schema() - end; - [_|_] -> - IsDiskNode = ClusterNodes == [] orelse - lists:member(node(), ClusterNodes), - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_table_copies(case IsDiskNode of - true -> disc; - false -> ram - end), - ok = ensure_schema_integrity() - end; - {error, Reason} -> - %% one reason we may end up here is if we try to join - %% nodes together that are currently running standalone or - %% are members of a different cluster - throw({error, {unable_to_join_cluster, - ClusterNodes, Reason}}) - end. - -create_schema() -> - mnesia:stop(), - rabbit_misc:ensure_ok(mnesia:create_schema([node()]), - cannot_create_schema), - rabbit_misc:ensure_ok(mnesia:start(), - cannot_start_mnesia), - ok = create_tables(), - ok = ensure_schema_integrity(), - ok = wait_for_tables(). - -move_db() -> - mnesia:stop(), - MnesiaDir = filename:dirname(dir() ++ "/"), - {{Year, Month, Day}, {Hour, Minute, Second}} = erlang:universaltime(), - BackupDir = lists:flatten( - io_lib:format("~s_~w~2..0w~2..0w~2..0w~2..0w~2..0w", - [MnesiaDir, - Year, Month, Day, Hour, Minute, Second])), - case file:rename(MnesiaDir, BackupDir) of - ok -> - %% NB: we cannot use rabbit_log here since it may not have - %% been started yet - error_logger:warning_msg("moved database from ~s to ~s~n", - [MnesiaDir, BackupDir]), - ok; - {error, Reason} -> throw({error, {cannot_backup_mnesia, - MnesiaDir, BackupDir, Reason}}) - end, - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok. - -create_tables() -> - lists:foreach(fun ({Tab, TabDef}) -> - TabDef1 = proplists:delete(match, TabDef), - case mnesia:create_table(Tab, TabDef1) of - {atomic, ok} -> ok; - {aborted, Reason} -> - throw({error, {table_creation_failed, - Tab, TabDef1, Reason}}) - end - end, - table_definitions()), - ok. - -table_has_copy_type(TabDef, DiscType) -> - lists:member(node(), proplists:get_value(DiscType, TabDef, [])). - -create_local_table_copies(Type) -> - lists:foreach( - fun ({Tab, TabDef}) -> - HasDiscCopies = table_has_copy_type(TabDef, disc_copies), - HasDiscOnlyCopies = table_has_copy_type(TabDef, disc_only_copies), - LocalTab = proplists:get_bool(local_content, TabDef), - StorageType = - if - Type =:= disc orelse LocalTab -> - if - HasDiscCopies -> disc_copies; - HasDiscOnlyCopies -> disc_only_copies; - true -> ram_copies - end; -%% unused code - commented out to keep dialyzer happy -%% Type =:= disc_only -> -%% if -%% HasDiscCopies or HasDiscOnlyCopies -> -%% disc_only_copies; -%% true -> ram_copies -%% end; - Type =:= ram -> - ram_copies - end, - ok = create_local_table_copy(Tab, StorageType) - end, - table_definitions()), - ok. - -create_local_table_copy(Tab, Type) -> - StorageType = mnesia:table_info(Tab, storage_type), - {atomic, ok} = - if - StorageType == unknown -> - mnesia:add_table_copy(Tab, node(), Type); - StorageType /= Type -> - mnesia:change_table_copy_type(Tab, node(), Type); - true -> {atomic, ok} - end, - ok. - -wait_for_replicated_tables() -> wait_for_tables(replicated_table_names()). - -wait_for_tables() -> wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> - case mnesia:wait_for_tables(TableNames, 30000) of - ok -> ok; - {timeout, BadTabs} -> - throw({error, {timeout_waiting_for_tables, BadTabs}}); - {error, Reason} -> - throw({error, {failed_waiting_for_tables, Reason}}) - end. - -reset(Force) -> - ok = ensure_mnesia_not_running(), - Node = node(), - case Force of - true -> ok; - false -> - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - {Nodes, RunningNodes} = - try - ok = init(), - {mnesia:system_info(db_nodes) -- [Node], - mnesia:system_info(running_db_nodes) -- [Node]} - after - mnesia:stop() - end, - leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) - end, - ok = delete_cluster_nodes_config(), - %% remove persisted messages and any other garbage we find - ok = rabbit_misc:recursive_delete(filelib:wildcard(dir() ++ "/*")), - ok. - -leave_cluster([], _) -> ok; -leave_cluster(Nodes, RunningNodes) -> - %% find at least one running cluster node and instruct it to - %% remove our schema copy which will in turn result in our node - %% being removed as a cluster node from the schema, with that - %% change being propagated to all nodes - case lists:any( - fun (Node) -> - case rpc:call(Node, mnesia, del_table_copy, - [schema, node()]) of - {atomic, ok} -> true; - {badrpc, nodedown} -> false; - {aborted, Reason} -> - throw({error, {failed_to_leave_cluster, - Nodes, RunningNodes, Reason}}) - end - end, - RunningNodes) of - true -> ok; - false -> throw({error, {no_running_cluster_nodes, - Nodes, RunningNodes}}) - end. diff --git a/src/rabbit_msg_store_index.erl b/src/rabbit_msg_store_index.erl deleted file mode 100644 index 6447d260..00000000 --- a/src/rabbit_msg_store_index.erl +++ /dev/null @@ -1,70 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_msg_store_index). - --export([behaviour_info/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(behaviour_info/1 :: - (_) -> - 'undefined' | - [{'delete' | - 'delete_by_file' | - 'insert' | - 'lookup' | - 'new' | - 'recover' | - 'terminate' | - 'update' | - 'update_fields', - 1 | 2 | 3}, - ...]). - --endif. - -%%---------------------------------------------------------------------------- - -behaviour_info(callbacks) -> - [{new, 1}, - {recover, 1}, - {lookup, 2}, - {insert, 2}, - {update, 2}, - {update_fields, 3}, - {delete, 2}, - {delete_by_file, 2}, - {terminate, 1}]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl deleted file mode 100644 index 9a3f470b..00000000 --- a/src/rabbit_networking.erl +++ /dev/null @@ -1,302 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_networking). - --export([boot/0, start/0, start_tcp_listener/2, start_ssl_listener/3, - stop_tcp_listener/2, on_node_down/1, active_listeners/0, - node_listeners/1, connections/0, connection_info_keys/0, - connection_info/1, connection_info/2, - connection_info_all/0, connection_info_all/1, - close_connection/2]). - -%%used by TCP-based transports, e.g. STOMP adapter --export([check_tcp_listener_address/3]). - --export([tcp_listener_started/3, tcp_listener_stopped/3, - start_client/1, start_ssl_client/2]). - --include("rabbit.hrl"). --include_lib("kernel/include/inet.hrl"). - --define(RABBIT_TCP_OPTS, [ - binary, - {packet, raw}, % no packaging - {reuseaddr, true}, % allow rebind without waiting - {backlog, 128}, % use the maximum listen(2) backlog value - %% {nodelay, true}, % TCP_NODELAY - disable Nagle's alg. - %% {delay_send, true}, - {exit_on_close, false} - ]). - --define(SSL_TIMEOUT, 5). %% seconds - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([ip_port/0, hostname/0]). - --spec(start/0 :: () -> 'ok'). --spec(start_tcp_listener/2 :: (hostname(), ip_port()) -> 'ok'). --spec(start_ssl_listener/3 :: (hostname(), ip_port(), [rabbit_types:info()]) - -> 'ok'). --spec(stop_tcp_listener/2 :: (hostname(), ip_port()) -> 'ok'). --spec(active_listeners/0 :: () -> [rabbit_types:listener()]). --spec(node_listeners/1 :: (node()) -> [rabbit_types:listener()]). --spec(connections/0 :: () -> [rabbit_types:connection()]). --spec(connection_info_keys/0 :: () -> [rabbit_types:info_key()]). --spec(connection_info/1 :: - (rabbit_types:connection()) -> [rabbit_types:info()]). --spec(connection_info/2 :: - (rabbit_types:connection(), [rabbit_types:info_key()]) - -> [rabbit_types:info()]). --spec(connection_info_all/0 :: () -> [[rabbit_types:info()]]). --spec(connection_info_all/1 :: - ([rabbit_types:info_key()]) -> [[rabbit_types:info()]]). --spec(close_connection/2 :: (pid(), string()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(check_tcp_listener_address/3 :: - (atom(), hostname(), ip_port()) -> {inet:ip_address(), atom()}). - --spec(boot/0 :: () -> 'ok'). --spec(start_client/1 :: - (port() | #ssl_socket{ssl::{'sslsocket',_,_}}) -> - atom() | pid() | port() | {atom(),atom()}). --spec(start_ssl_client/2 :: - (_,port() | #ssl_socket{ssl::{'sslsocket',_,_}}) -> - atom() | pid() | port() | {atom(),atom()}). --spec(tcp_listener_started/3 :: - (_, - string() | - {byte(),byte(),byte(),byte()} | - {char(),char(),char(),char(),char(),char(),char(),char()}, - _) -> - 'ok'). --spec(tcp_listener_stopped/3 :: - (_, - string() | - {byte(),byte(),byte(),byte()} | - {char(),char(),char(),char(),char(),char(),char(),char()}, - _) -> - 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - ok = start(), - ok = boot_tcp(), - ok = boot_ssl(). - -boot_tcp() -> - {ok, TcpListeners} = application:get_env(tcp_listeners), - [ok = start_tcp_listener(Host, Port) || {Host, Port} <- TcpListeners], - ok. - -boot_ssl() -> - case application:get_env(ssl_listeners) of - {ok, []} -> - ok; - {ok, SslListeners} -> - ok = rabbit_misc:start_applications([crypto, public_key, ssl]), - {ok, SslOptsConfig} = application:get_env(ssl_options), - % unknown_ca errors are silently ignored prior to R14B unless we - % supply this verify_fun - remove when at least R14B is required - SslOpts = - case proplists:get_value(verify, SslOptsConfig, verify_none) of - verify_none -> SslOptsConfig; - verify_peer -> [{verify_fun, fun([]) -> true; - ([_|_]) -> false - end} - | SslOptsConfig] - end, - [start_ssl_listener(Host, Port, SslOpts) || {Host, Port} <- SslListeners], - ok - end. - -start() -> - {ok,_} = supervisor:start_child( - rabbit_sup, - {rabbit_tcp_client_sup, - {tcp_client_sup, start_link, - [{local, rabbit_tcp_client_sup}, - {rabbit_connection_sup,start_link,[]}]}, - transient, infinity, supervisor, [tcp_client_sup]}), - ok. - -getaddr(Host) -> - %% inet_parse:address takes care of ip string, like "0.0.0.0" - %% inet:getaddr returns immediately for ip tuple {0,0,0,0}, - %% and runs 'inet_gethost' port process for dns lookups. - %% On Windows inet:getaddr runs dns resolver for ip string, which may fail. - case inet_parse:address(Host) of - {ok, IPAddress1} -> IPAddress1; - {error, _} -> - case inet:getaddr(Host, inet) of - {ok, IPAddress2} -> IPAddress2; - {error, Reason} -> - error_logger:error_msg("invalid host ~p - ~p~n", - [Host, Reason]), - throw({error, {invalid_host, Host, Reason}}) - end - end. - -check_tcp_listener_address(NamePrefix, Host, Port) -> - IPAddress = getaddr(Host), - if is_integer(Port) andalso (Port >= 0) andalso (Port =< 65535) -> ok; - true -> error_logger:error_msg("invalid port ~p - not 0..65535~n", - [Port]), - throw({error, {invalid_port, Port}}) - end, - Name = rabbit_misc:tcp_name(NamePrefix, IPAddress, Port), - {IPAddress, Name}. - -start_tcp_listener(Host, Port) -> - start_listener(Host, Port, amqp, "TCP Listener", - {?MODULE, start_client, []}). - -start_ssl_listener(Host, Port, SslOpts) -> - start_listener(Host, Port, 'amqp/ssl', "SSL Listener", - {?MODULE, start_ssl_client, [SslOpts]}). - -start_listener(Host, Port, Protocol, Label, OnConnect) -> - {IPAddress, Name} = - check_tcp_listener_address(rabbit_tcp_listener_sup, Host, Port), - {ok,_} = supervisor:start_child( - rabbit_sup, - {Name, - {tcp_listener_sup, start_link, - [IPAddress, Port, ?RABBIT_TCP_OPTS , - {?MODULE, tcp_listener_started, [Protocol]}, - {?MODULE, tcp_listener_stopped, [Protocol]}, - OnConnect, Label]}, - transient, infinity, supervisor, [tcp_listener_sup]}), - ok. - -stop_tcp_listener(Host, Port) -> - IPAddress = getaddr(Host), - Name = rabbit_misc:tcp_name(rabbit_tcp_listener_sup, IPAddress, Port), - ok = supervisor:terminate_child(rabbit_sup, Name), - ok = supervisor:delete_child(rabbit_sup, Name), - ok. - -tcp_listener_started(Protocol, IPAddress, Port) -> - %% We need the ip to distinguish e.g. 0.0.0.0 and 127.0.0.1 - %% We need the host so we can distinguish multiple instances of the above - %% in a cluster. - ok = mnesia:dirty_write( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -tcp_listener_stopped(Protocol, IPAddress, Port) -> - ok = mnesia:dirty_delete_object( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -active_listeners() -> - rabbit_misc:dirty_read_all(rabbit_listener). - -node_listeners(Node) -> - mnesia:dirty_read(rabbit_listener, Node). - -on_node_down(Node) -> - ok = mnesia:dirty_delete(rabbit_listener, Node). - -start_client(Sock, SockTransform) -> - {ok, _Child, Reader} = supervisor:start_child(rabbit_tcp_client_sup, []), - ok = rabbit_net:controlling_process(Sock, Reader), - Reader ! {go, Sock, SockTransform}, - Reader. - -start_client(Sock) -> - start_client(Sock, fun (S) -> {ok, S} end). - -start_ssl_client(SslOpts, Sock) -> - start_client( - Sock, - fun (Sock1) -> - case catch ssl:ssl_accept(Sock1, SslOpts, ?SSL_TIMEOUT * 1000) of - {ok, SslSock} -> - rabbit_log:info("upgraded TCP connection ~p to SSL~n", - [self()]), - {ok, #ssl_socket{tcp = Sock1, ssl = SslSock}}; - {error, Reason} -> - {error, {ssl_upgrade_error, Reason}}; - {'EXIT', Reason} -> - {error, {ssl_upgrade_failure, Reason}} - - end - end). - -connections() -> - [rabbit_connection_sup:reader(ConnSup) || - {_, ConnSup, supervisor, _} - <- supervisor:which_children(rabbit_tcp_client_sup)]. - -connection_info_keys() -> rabbit_reader:info_keys(). - -connection_info(Pid) -> rabbit_reader:info(Pid). -connection_info(Pid, Items) -> rabbit_reader:info(Pid, Items). - -connection_info_all() -> cmap(fun (Q) -> connection_info(Q) end). -connection_info_all(Items) -> cmap(fun (Q) -> connection_info(Q, Items) end). - -close_connection(Pid, Explanation) -> - case lists:member(Pid, connections()) of - true -> rabbit_reader:shutdown(Pid, Explanation); - false -> throw({error, {not_a_connection_pid, Pid}}) - end. - -%%-------------------------------------------------------------------- - -tcp_host({0,0,0,0}) -> - {ok, Hostname} = inet:gethostname(), - case inet:gethostbyname(Hostname) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> Hostname - end; -tcp_host(IPAddress) -> - case inet:gethostbyaddr(IPAddress) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> inet_parse:ntoa(IPAddress) - end. - -cmap(F) -> rabbit_misc:filter_exit_map(F, connections()). diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl deleted file mode 100644 index ab9e8295..00000000 --- a/src/rabbit_node_monitor.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_node_monitor). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%-------------------------------------------------------------------- - -init([]) -> - ok = net_kernel:monitor_nodes(true), - {ok, no_state}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({nodeup, Node}, State) -> - rabbit_log:info("node ~p up", [Node]), - {noreply, State}; -handle_info({nodedown, Node}, State) -> - rabbit_log:info("node ~p down", [Node]), - %% TODO: This may turn out to be a performance hog when there are - %% lots of nodes. We really only need to execute this code on - %% *one* node, rather than all of them. - ok = rabbit_networking:on_node_down(Node), - ok = rabbit_amqqueue:on_node_down(Node), - {noreply, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - diff --git a/src/rabbit_queue_collector.erl b/src/rabbit_queue_collector.erl deleted file mode 100644 index e14bf6af..00000000 --- a/src/rabbit_queue_collector.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_collector). - --behaviour(gen_server). - --export([start_link/0, register/2, delete_all/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {queues, delete_from}). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(register/2 :: (pid(), rabbit_types:amqqueue()) -> 'ok'). --spec(delete_all/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link(?MODULE, [], []). - -register(CollectorPid, Q) -> - gen_server:call(CollectorPid, {register, Q}, infinity). - -delete_all(CollectorPid) -> - gen_server:call(CollectorPid, delete_all, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state{queues = dict:new(), delete_from = undefined}}. - -%%-------------------------------------------------------------------------- - -handle_call({register, Q}, _From, - State = #state{queues = Queues, delete_from = Deleting}) -> - MonitorRef = erlang:monitor(process, Q#amqqueue.pid), - case Deleting of - undefined -> ok; - _ -> rabbit_amqqueue:delete_immediately(Q) - end, - {reply, ok, State#state{queues = dict:store(MonitorRef, Q, Queues)}}; - -handle_call(delete_all, From, State = #state{queues = Queues, - delete_from = undefined}) -> - case dict:size(Queues) of - 0 -> {reply, ok, State#state{delete_from = From}}; - _ -> [rabbit_amqqueue:delete_immediately(Q) - || {_MRef, Q} <- dict:to_list(Queues)], - {noreply, State#state{delete_from = From}} - end. - -handle_cast(Msg, State) -> - {stop, {unhandled_cast, Msg}, State}. - -handle_info({'DOWN', MonitorRef, process, _DownPid, _Reason}, - State = #state{queues = Queues, delete_from = Deleting}) -> - Queues1 = dict:erase(MonitorRef, Queues), - case Deleting =/= undefined andalso dict:size(Queues1) =:= 0 of - true -> gen_server:reply(Deleting, ok); - false -> ok - end, - {noreply, State#state{queues = Queues1}}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl deleted file mode 100644 index a8fbc62b..00000000 --- a/src/rabbit_queue_index.erl +++ /dev/null @@ -1,972 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_queue_index). - --export([init/1, shutdown_terms/1, recover/4, - terminate/2, delete_and_terminate/1, - publish/5, deliver/2, ack/2, sync/2, flush/1, read/3, - next_segment_boundary/1, bounds/1, recover/1]). - --define(CLEAN_FILENAME, "clean.dot"). - -%%---------------------------------------------------------------------------- - -%% The queue index is responsible for recording the order of messages -%% within a queue on disk. -%% -%% Because of the fact that the queue can decide at any point to send -%% a queue entry to disk, you can not rely on publishes appearing in -%% order. The only thing you can rely on is a message being published, -%% then delivered, then ack'd. -%% -%% In order to be able to clean up ack'd messages, we write to segment -%% files. These files have a fixed maximum size: ?SEGMENT_ENTRY_COUNT -%% publishes, delivers and acknowledgements. They are numbered, and so -%% it is known that the 0th segment contains messages 0 -> -%% ?SEGMENT_ENTRY_COUNT - 1, the 1st segment contains messages -%% ?SEGMENT_ENTRY_COUNT -> 2*?SEGMENT_ENTRY_COUNT - 1 and so on. As -%% such, in the segment files, we only refer to message sequence ids -%% by the LSBs as SeqId rem ?SEGMENT_ENTRY_COUNT. This gives them a -%% fixed size. -%% -%% However, transient messages which are not sent to disk at any point -%% will cause gaps to appear in segment files. Therefore, we delete a -%% segment file whenever the number of publishes == number of acks -%% (note that although it is not fully enforced, it is assumed that a -%% message will never be ackd before it is delivered, thus this test -%% also implies == number of delivers). In practise, this does not -%% cause disk churn in the pathological case because of the journal -%% and caching (see below). -%% -%% Because of the fact that publishes, delivers and acks can occur all -%% over, we wish to avoid lots of seeking. Therefore we have a fixed -%% sized journal to which all actions are appended. When the number of -%% entries in this journal reaches max_journal_entries, the journal -%% entries are scattered out to their relevant files, and the journal -%% is truncated to zero size. Note that entries in the journal must -%% carry the full sequence id, thus the format of entries in the -%% journal is different to that in the segments. -%% -%% The journal is also kept fully in memory, pre-segmented: the state -%% contains a mapping from segment numbers to state-per-segment (this -%% state is held for all segments which have been "seen": thus a -%% segment which has been read but has no pending entries in the -%% journal is still held in this mapping. Also note that a dict is -%% used for this mapping, not an array because with an array, you will -%% always have entries from 0). Actions are stored directly in this -%% state. Thus at the point of flushing the journal, firstly no -%% reading from disk is necessary, but secondly if the known number of -%% acks and publishes in a segment are equal, given the known state of -%% the segment file combined with the journal, no writing needs to be -%% done to the segment file either (in fact it is deleted if it exists -%% at all). This is safe given that the set of acks is a subset of the -%% set of publishes. When it's necessary to sync messages because of -%% transactions, it's only necessary to fsync on the journal: when -%% entries are distributed from the journal to segment files, those -%% segments appended to are fsync'd prior to the journal being -%% truncated. -%% -%% This module is also responsible for scanning the queue index files -%% and seeding the message store on start up. -%% -%% Note that in general, the representation of a message's state as -%% the tuple: {('no_pub'|{Guid, MsgProps, IsPersistent}), -%% ('del'|'no_del'), ('ack'|'no_ack')} is richer than strictly -%% necessary for most operations. However, for startup, and to ensure -%% the safe and correct combination of journal entries with entries -%% read from the segment on disk, this richer representation vastly -%% simplifies and clarifies the code. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. -%% -%%---------------------------------------------------------------------------- - -%% ---- Journal details ---- - --define(JOURNAL_FILENAME, "journal.jif"). - --define(PUB_PERSIST_JPREFIX, 2#00). --define(PUB_TRANS_JPREFIX, 2#01). --define(DEL_JPREFIX, 2#10). --define(ACK_JPREFIX, 2#11). --define(JPREFIX_BITS, 2). --define(SEQ_BYTES, 8). --define(SEQ_BITS, ((?SEQ_BYTES * 8) - ?JPREFIX_BITS)). - -%% ---- Segment details ---- - --define(SEGMENT_EXTENSION, ".idx"). - -%% TODO: The segment size would be configurable, but deriving all the -%% other values is quite hairy and quite possibly noticably less -%% efficient, depending on how clever the compiler is when it comes to -%% binary generation/matching with constant vs variable lengths. - --define(REL_SEQ_BITS, 14). --define(SEGMENT_ENTRY_COUNT, 16384). %% trunc(math:pow(2,?REL_SEQ_BITS))). - -%% seq only is binary 00 followed by 14 bits of rel seq id -%% (range: 0 - 16383) --define(REL_SEQ_ONLY_PREFIX, 00). --define(REL_SEQ_ONLY_PREFIX_BITS, 2). --define(REL_SEQ_ONLY_ENTRY_LENGTH_BYTES, 2). - -%% publish record is binary 1 followed by a bit for is_persistent, -%% then 14 bits of rel seq id, 64 bits for message expiry and 128 bits -%% of md5sum msg id --define(PUBLISH_PREFIX, 1). --define(PUBLISH_PREFIX_BITS, 1). - --define(EXPIRY_BYTES, 8). --define(EXPIRY_BITS, (?EXPIRY_BYTES * 8)). --define(NO_EXPIRY, 0). - --define(GUID_BYTES, 16). %% md5sum is 128 bit or 16 bytes --define(GUID_BITS, (?GUID_BYTES * 8)). -%% 16 bytes for md5sum + 8 for expiry + 2 for seq, bits and prefix --define(PUBLISH_RECORD_LENGTH_BYTES, ?GUID_BYTES + ?EXPIRY_BYTES + 2). - -%% 1 publish, 1 deliver, 1 ack per msg --define(SEGMENT_TOTAL_SIZE, ?SEGMENT_ENTRY_COUNT * - (?PUBLISH_RECORD_LENGTH_BYTES + - (2 * ?REL_SEQ_ONLY_ENTRY_LENGTH_BYTES))). - -%% ---- misc ---- - --define(PUB, {_, _, _}). %% {Guid, MsgProps, IsPersistent} - --define(READ_MODE, [binary, raw, read]). --define(READ_AHEAD_MODE, [{read_ahead, ?SEGMENT_TOTAL_SIZE} | ?READ_MODE]). --define(WRITE_MODE, [write | ?READ_MODE]). - -%%---------------------------------------------------------------------------- - --record(qistate, { dir, segments, journal_handle, dirty_count, - max_journal_entries }). - --record(segment, { num, path, journal_entries, unacked }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(hdl() :: ('undefined' | any())). --type(segment() :: ('undefined' | - #segment { num :: non_neg_integer(), - path :: file:filename(), - journal_entries :: array(), - unacked :: non_neg_integer() - })). --type(seq_id() :: integer()). --type(seg_dict() :: {dict:dictionary(), [segment()]}). --type(qistate() :: #qistate { dir :: file:filename(), - segments :: 'undefined' | seg_dict(), - journal_handle :: hdl(), - dirty_count :: integer(), - max_journal_entries :: non_neg_integer() - }). --type(startup_fun_state() :: - {(fun ((A) -> 'finished' | {rabbit_guid:guid(), non_neg_integer(), A})), - A}). --type(shutdown_terms() :: [any()]). - --spec(shutdown_terms/1 :: (rabbit_amqqueue:name()) -> shutdown_terms()). --spec(recover/4 :: (rabbit_amqqueue:name(), shutdown_terms(), boolean(), - fun ((rabbit_guid:guid()) -> boolean())) -> - {'undefined' | non_neg_integer(), qistate()}). --spec(delete_and_terminate/1 :: (qistate()) -> qistate()). --spec(publish/5 :: (rabbit_guid:guid(), seq_id(), - rabbit_types:message_properties(), boolean(), qistate()) - -> qistate()). --spec(deliver/2 :: ([seq_id()], qistate()) -> qistate()). --spec(ack/2 :: ([seq_id()], qistate()) -> qistate()). --spec(sync/2 :: ([seq_id()], qistate()) -> qistate()). --spec(flush/1 :: (qistate()) -> qistate()). --spec(read/3 :: (seq_id(), seq_id(), qistate()) -> - {[{rabbit_guid:guid(), seq_id(), - rabbit_types:message_properties(), - boolean(), boolean()}], qistate()}). --spec(next_segment_boundary/1 :: (seq_id()) -> seq_id()). --spec(bounds/1 :: (qistate()) -> - {non_neg_integer(), non_neg_integer(), qistate()}). --spec(recover/1 :: - ([rabbit_amqqueue:name()]) -> {[[any()]], startup_fun_state()}). - --endif. - - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -init(Name) -> - State = #qistate { dir = Dir } = blank_state(Name), - false = filelib:is_file(Dir), %% is_file == is file or dir - State. - -shutdown_terms(Name) -> - #qistate { dir = Dir } = blank_state(Name), - case read_shutdown_terms(Dir) of - {error, _} -> []; - {ok, Terms1} -> Terms1 - end. - -recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - CleanShutdown = detect_clean_shutdown(Dir), - case CleanShutdown andalso MsgStoreRecovered of - true -> RecoveredCounts = proplists:get_value(segments, Terms, []), - init_clean(RecoveredCounts, State); - false -> init_dirty(CleanShutdown, ContainsCheckFun, State) - end. - -terminate(Terms, State) -> - {SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - store_clean_shutdown([{segments, SegmentCounts} | Terms], Dir), - State1. - -delete_and_terminate(State) -> - {_SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - ok = rabbit_misc:recursive_delete([Dir]), - State1. - -publish(Guid, SeqId, MsgProps, IsPersistent, State) when is_binary(Guid) -> - ?GUID_BYTES = size(Guid), - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, [<<(case IsPersistent of - true -> ?PUB_PERSIST_JPREFIX; - false -> ?PUB_TRANS_JPREFIX - end):?JPREFIX_BITS, - SeqId:?SEQ_BITS>>, - create_pub_record_body(Guid, MsgProps)]), - maybe_flush_journal( - add_to_journal(SeqId, {Guid, MsgProps, IsPersistent}, State1)). - -deliver(SeqIds, State) -> - deliver_or_ack(del, SeqIds, State). - -ack(SeqIds, State) -> - deliver_or_ack(ack, SeqIds, State). - -sync([], State) -> - State; -sync(_SeqIds, State = #qistate { journal_handle = undefined }) -> - State; -sync(_SeqIds, State = #qistate { journal_handle = JournalHdl }) -> - %% The SeqIds here contains the SeqId of every publish and ack in - %% the transaction. Ideally we should go through these seqids and - %% only sync the journal if the pubs or acks appear in the - %% journal. However, this would be complex to do, and given that - %% the variable queue publishes and acks to the qi, and then - %% syncs, all in one operation, there is no possibility of the - %% seqids not being in the journal, provided the transaction isn't - %% emptied (handled above anyway). - ok = file_handle_cache:sync(JournalHdl), - State. - -flush(State = #qistate { dirty_count = 0 }) -> State; -flush(State) -> flush_journal(State). - -read(StartEnd, StartEnd, State) -> - {[], State}; -read(Start, End, State = #qistate { segments = Segments, - dir = Dir }) when Start =< End -> - %% Start is inclusive, End is exclusive. - LowerB = {StartSeg, _StartRelSeq} = seq_id_to_seg_and_rel_seq_id(Start), - UpperB = {EndSeg, _EndRelSeq} = seq_id_to_seg_and_rel_seq_id(End - 1), - {Messages, Segments1} = - lists:foldr(fun (Seg, Acc) -> - read_bounded_segment(Seg, LowerB, UpperB, Acc, Dir) - end, {[], Segments}, lists:seq(StartSeg, EndSeg)), - {Messages, State #qistate { segments = Segments1 }}. - -next_segment_boundary(SeqId) -> - {Seg, _RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - reconstruct_seq_id(Seg + 1, 0). - -bounds(State = #qistate { segments = Segments }) -> - %% This is not particularly efficient, but only gets invoked on - %% queue initialisation. - SegNums = lists:sort(segment_nums(Segments)), - %% Don't bother trying to figure out the lowest seq_id, merely the - %% seq_id of the start of the lowest segment. That seq_id may not - %% actually exist, but that's fine. The important thing is that - %% the segment exists and the seq_id reported is on a segment - %% boundary. - %% - %% We also don't really care about the max seq_id. Just start the - %% next segment: it makes life much easier. - %% - %% SegNums is sorted, ascending. - {LowSeqId, NextSeqId} = - case SegNums of - [] -> {0, 0}; - [MinSeg|_] -> {reconstruct_seq_id(MinSeg, 0), - reconstruct_seq_id(1 + lists:last(SegNums), 0)} - end, - {LowSeqId, NextSeqId, State}. - -recover(DurableQueues) -> - DurableDict = dict:from_list([ {queue_name_to_dir_name(Queue), Queue} || - Queue <- DurableQueues ]), - QueuesDir = queues_dir(), - Directories = case file:list_dir(QueuesDir) of - {ok, Entries} -> [ Entry || Entry <- Entries, - filelib:is_dir( - filename:join( - QueuesDir, Entry)) ]; - {error, enoent} -> [] - end, - DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), - {DurableQueueNames, DurableTerms} = - lists:foldl( - fun (QueueDir, {DurableAcc, TermsAcc}) -> - case sets:is_element(QueueDir, DurableDirectories) of - true -> - TermsAcc1 = - case read_shutdown_terms( - filename:join(QueuesDir, QueueDir)) of - {error, _} -> TermsAcc; - {ok, Terms} -> [Terms | TermsAcc] - end, - {[dict:fetch(QueueDir, DurableDict) | DurableAcc], - TermsAcc1}; - false -> - Dir = filename:join(queues_dir(), QueueDir), - ok = rabbit_misc:recursive_delete([Dir]), - {DurableAcc, TermsAcc} - end - end, {[], []}, Directories), - {DurableTerms, {fun queue_index_walker/1, {start, DurableQueueNames}}}. - -%%---------------------------------------------------------------------------- -%% startup and shutdown -%%---------------------------------------------------------------------------- - -blank_state(QueueName) -> - Dir = filename:join(queues_dir(), queue_name_to_dir_name(QueueName)), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - #qistate { dir = Dir, - segments = segments_new(), - journal_handle = undefined, - dirty_count = 0, - max_journal_entries = MaxJournal }. - -clean_file_name(Dir) -> filename:join(Dir, ?CLEAN_FILENAME). - -detect_clean_shutdown(Dir) -> - case file:delete(clean_file_name(Dir)) of - ok -> true; - {error, enoent} -> false - end. - -read_shutdown_terms(Dir) -> - rabbit_misc:read_term_file(clean_file_name(Dir)). - -store_clean_shutdown(Terms, Dir) -> - CleanFileName = clean_file_name(Dir), - ok = filelib:ensure_dir(CleanFileName), - rabbit_misc:write_term_file(CleanFileName, Terms). - -init_clean(RecoveredCounts, State) -> - %% Load the journal. Since this is a clean recovery this (almost) - %% gets us back to where we were on shutdown. - State1 = #qistate { dir = Dir, segments = Segments } = load_journal(State), - %% The journal loading only creates records for segments touched - %% by the journal, and the counts are based on the journal entries - %% only. We need *complete* counts for *all* segments. By an - %% amazing coincidence we stored that information on shutdown. - Segments1 = - lists:foldl( - fun ({Seg, UnackedCount}, SegmentsN) -> - Segment = segment_find_or_new(Seg, Dir, SegmentsN), - segment_store(Segment #segment { unacked = UnackedCount }, - SegmentsN) - end, Segments, RecoveredCounts), - %% the counts above include transient messages, which would be the - %% wrong thing to return - {undefined, State1 # qistate { segments = Segments1 }}. - -init_dirty(CleanShutdown, ContainsCheckFun, State) -> - %% Recover the journal completely. This will also load segments - %% which have entries in the journal and remove duplicates. The - %% counts will correctly reflect the combination of the segment - %% and the journal. - State1 = #qistate { dir = Dir, segments = Segments } = - recover_journal(State), - {Segments1, Count} = - %% Load each segment in turn and filter out messages that are - %% not in the msg_store, by adding acks to the journal. These - %% acks only go to the RAM journal as it doesn't matter if we - %% lose them. Also mark delivered if not clean shutdown. Also - %% find the number of unacked messages. - lists:foldl( - fun (Seg, {Segments2, CountAcc}) -> - Segment = #segment { unacked = UnackedCount } = - recover_segment(ContainsCheckFun, CleanShutdown, - segment_find_or_new(Seg, Dir, Segments2)), - {segment_store(Segment, Segments2), CountAcc + UnackedCount} - end, {Segments, 0}, all_segment_nums(State1)), - %% Unconditionally flush since the dirty_count doesn't get updated - %% by the above foldl. - State2 = flush_journal(State1 #qistate { segments = Segments1 }), - {Count, State2}. - -terminate(State = #qistate { journal_handle = JournalHdl, - segments = Segments }) -> - ok = case JournalHdl of - undefined -> ok; - _ -> file_handle_cache:close(JournalHdl) - end, - SegmentCounts = - segment_fold( - fun (#segment { num = Seg, unacked = UnackedCount }, Acc) -> - [{Seg, UnackedCount} | Acc] - end, [], Segments), - {SegmentCounts, State #qistate { journal_handle = undefined, - segments = undefined }}. - -recover_segment(ContainsCheckFun, CleanShutdown, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, UnackedCount} = load_segment(false, Segment), - {SegEntries1, UnackedCountDelta} = - segment_plus_journal(SegEntries, JEntries), - array:sparse_foldl( - fun (RelSeq, {{Guid, _MsgProps, _IsPersistent}, Del, no_ack}, Segment1) -> - recover_message(ContainsCheckFun(Guid), CleanShutdown, - Del, RelSeq, Segment1) - end, - Segment #segment { unacked = UnackedCount + UnackedCountDelta }, - SegEntries1). - -recover_message( true, true, _Del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, del, Segment); -recover_message(false, _, del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, Segment); -recover_message(false, _, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, add_to_journal(RelSeq, del, Segment)). - -queue_name_to_dir_name(Name = #resource { kind = queue }) -> - <> = erlang:md5(term_to_binary(Name)), - lists:flatten(io_lib:format("~.36B", [Num])). - -queues_dir() -> - filename:join(rabbit_mnesia:dir(), "queues"). - -%%---------------------------------------------------------------------------- -%% msg store startup delta function -%%---------------------------------------------------------------------------- - -queue_index_walker({start, DurableQueues}) when is_list(DurableQueues) -> - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> queue_index_walker_reader(QueueName, Gatherer) - end) - end || QueueName <- DurableQueues], - queue_index_walker({next, Gatherer}); - -queue_index_walker({next, Gatherer}) when is_pid(Gatherer) -> - case gatherer:out(Gatherer) of - empty -> - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer), - finished; - {value, {Guid, Count}} -> - {Guid, Count, {next, Gatherer}} - end. - -queue_index_walker_reader(QueueName, Gatherer) -> - State = #qistate { segments = Segments, dir = Dir } = - recover_journal(blank_state(QueueName)), - [ok = segment_entries_foldr( - fun (_RelSeq, {{Guid, _MsgProps, true}, _IsDelivered, no_ack}, - ok) -> - gatherer:in(Gatherer, {Guid, 1}); - (_RelSeq, _Value, Acc) -> - Acc - end, ok, segment_find_or_new(Seg, Dir, Segments)) || - Seg <- all_segment_nums(State)], - {_SegmentCounts, _State} = terminate(State), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% expiry/binary manipulation -%%---------------------------------------------------------------------------- - -create_pub_record_body(Guid, #message_properties{expiry = Expiry}) -> - [Guid, expiry_to_binary(Expiry)]. - -expiry_to_binary(undefined) -> <>; -expiry_to_binary(Expiry) -> <>. - -read_pub_record_body(Hdl) -> - case file_handle_cache:read(Hdl, ?GUID_BYTES + ?EXPIRY_BYTES) of - {ok, Bin} -> - %% work around for binary data fragmentation. See - %% rabbit_msg_file:read_next/2 - <> = Bin, - <> = <>, - Exp = case Expiry of - ?NO_EXPIRY -> undefined; - X -> X - end, - {Guid, #message_properties{expiry = Exp}}; - Error -> - Error - end. - -%%---------------------------------------------------------------------------- -%% journal manipulation -%%---------------------------------------------------------------------------- - -add_to_journal(SeqId, Action, State = #qistate { dirty_count = DCount, - segments = Segments, - dir = Dir }) -> - {Seg, RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - Segment = segment_find_or_new(Seg, Dir, Segments), - Segment1 = add_to_journal(RelSeq, Action, Segment), - State #qistate { dirty_count = DCount + 1, - segments = segment_store(Segment1, Segments) }; - -add_to_journal(RelSeq, Action, - Segment = #segment { journal_entries = JEntries, - unacked = UnackedCount }) -> - Segment1 = Segment #segment { - journal_entries = add_to_journal(RelSeq, Action, JEntries) }, - case Action of - del -> Segment1; - ack -> Segment1 #segment { unacked = UnackedCount - 1 }; - ?PUB -> Segment1 #segment { unacked = UnackedCount + 1 } - end; - -add_to_journal(RelSeq, Action, JEntries) -> - Val = case array:get(RelSeq, JEntries) of - undefined -> - case Action of - ?PUB -> {Action, no_del, no_ack}; - del -> {no_pub, del, no_ack}; - ack -> {no_pub, no_del, ack} - end; - ({Pub, no_del, no_ack}) when Action == del -> - {Pub, del, no_ack}; - ({Pub, Del, no_ack}) when Action == ack -> - {Pub, Del, ack} - end, - array:set(RelSeq, Val, JEntries). - -maybe_flush_journal(State = #qistate { dirty_count = DCount, - max_journal_entries = MaxJournal }) - when DCount > MaxJournal -> - flush_journal(State); -maybe_flush_journal(State) -> - State. - -flush_journal(State = #qistate { segments = Segments }) -> - Segments1 = - segment_fold( - fun (#segment { unacked = 0, path = Path }, SegmentsN) -> - case filelib:is_file(Path) of - true -> ok = file:delete(Path); - false -> ok - end, - SegmentsN; - (#segment {} = Segment, SegmentsN) -> - segment_store(append_journal_to_segment(Segment), SegmentsN) - end, segments_new(), Segments), - {JournalHdl, State1} = - get_journal_handle(State #qistate { segments = Segments1 }), - ok = file_handle_cache:clear(JournalHdl), - State1 #qistate { dirty_count = 0 }. - -append_journal_to_segment(#segment { journal_entries = JEntries, - path = Path } = Segment) -> - case array:sparse_size(JEntries) of - 0 -> Segment; - _ -> {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - array:sparse_foldl(fun write_entry_to_segment/3, Hdl, JEntries), - ok = file_handle_cache:close(Hdl), - Segment #segment { journal_entries = array_new() } - end. - -get_journal_handle(State = #qistate { journal_handle = undefined, - dir = Dir }) -> - Path = filename:join(Dir, ?JOURNAL_FILENAME), - ok = filelib:ensure_dir(Path), - {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - {Hdl, State #qistate { journal_handle = Hdl }}; -get_journal_handle(State = #qistate { journal_handle = Hdl }) -> - {Hdl, State}. - -%% Loading Journal. This isn't idempotent and will mess up the counts -%% if you call it more than once on the same state. Assumes the counts -%% are 0 to start with. -load_journal(State) -> - {JournalHdl, State1} = get_journal_handle(State), - {ok, 0} = file_handle_cache:position(JournalHdl, 0), - load_journal_entries(State1). - -%% ditto -recover_journal(State) -> - State1 = #qistate { segments = Segments } = load_journal(State), - Segments1 = - segment_map( - fun (Segment = #segment { journal_entries = JEntries, - unacked = UnackedCountInJournal }) -> - %% We want to keep ack'd entries in so that we can - %% remove them if duplicates are in the journal. The - %% counts here are purely from the segment itself. - {SegEntries, UnackedCountInSeg} = load_segment(true, Segment), - {JEntries1, UnackedCountDuplicates} = - journal_minus_segment(JEntries, SegEntries), - Segment #segment { journal_entries = JEntries1, - unacked = (UnackedCountInJournal + - UnackedCountInSeg - - UnackedCountDuplicates) } - end, Segments), - State1 #qistate { segments = Segments1 }. - -load_journal_entries(State = #qistate { journal_handle = Hdl }) -> - case file_handle_cache:read(Hdl, ?SEQ_BYTES) of - {ok, <>} -> - case Prefix of - ?DEL_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, del, State)); - ?ACK_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, ack, State)); - _ -> - case read_pub_record_body(Hdl) of - {Guid, MsgProps} -> - Publish = {Guid, MsgProps, - case Prefix of - ?PUB_PERSIST_JPREFIX -> true; - ?PUB_TRANS_JPREFIX -> false - end}, - load_journal_entries( - add_to_journal(SeqId, Publish, State)); - _ErrOrEoF -> %% err, we've lost at least a publish - State - end - end; - _ErrOrEoF -> State - end. - -deliver_or_ack(_Kind, [], State) -> - State; -deliver_or_ack(Kind, SeqIds, State) -> - JPrefix = case Kind of ack -> ?ACK_JPREFIX; del -> ?DEL_JPREFIX end, - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, - [<> || SeqId <- SeqIds]), - maybe_flush_journal(lists:foldl(fun (SeqId, StateN) -> - add_to_journal(SeqId, Kind, StateN) - end, State1, SeqIds)). - -%%---------------------------------------------------------------------------- -%% segment manipulation -%%---------------------------------------------------------------------------- - -seq_id_to_seg_and_rel_seq_id(SeqId) -> - { SeqId div ?SEGMENT_ENTRY_COUNT, SeqId rem ?SEGMENT_ENTRY_COUNT }. - -reconstruct_seq_id(Seg, RelSeq) -> - (Seg * ?SEGMENT_ENTRY_COUNT) + RelSeq. - -all_segment_nums(#qistate { dir = Dir, segments = Segments }) -> - lists:sort( - sets:to_list( - lists:foldl( - fun (SegName, Set) -> - sets:add_element( - list_to_integer( - lists:takewhile(fun (C) -> $0 =< C andalso C =< $9 end, - SegName)), Set) - end, sets:from_list(segment_nums(Segments)), - filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)))). - -segment_find_or_new(Seg, Dir, Segments) -> - case segment_find(Seg, Segments) of - {ok, Segment} -> Segment; - error -> SegName = integer_to_list(Seg) ++ ?SEGMENT_EXTENSION, - Path = filename:join(Dir, SegName), - #segment { num = Seg, - path = Path, - journal_entries = array_new(), - unacked = 0 } - end. - -segment_find(Seg, {_Segments, [Segment = #segment { num = Seg } |_]}) -> - {ok, Segment}; %% 1 or (2, matches head) -segment_find(Seg, {_Segments, [_, Segment = #segment { num = Seg }]}) -> - {ok, Segment}; %% 2, matches tail -segment_find(Seg, {Segments, _}) -> %% no match - dict:find(Seg, Segments). - -segment_store(Segment = #segment { num = Seg }, %% 1 or (2, matches head) - {Segments, [#segment { num = Seg } | Tail]}) -> - {Segments, [Segment | Tail]}; -segment_store(Segment = #segment { num = Seg }, %% 2, matches tail - {Segments, [SegmentA, #segment { num = Seg }]}) -> - {Segments, [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, {Segments, []}) -> - {dict:erase(Seg, Segments), [Segment]}; -segment_store(Segment = #segment { num = Seg }, {Segments, [SegmentA]}) -> - {dict:erase(Seg, Segments), [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, - {Segments, [SegmentA, SegmentB]}) -> - {dict:store(SegmentB#segment.num, SegmentB, dict:erase(Seg, Segments)), - [Segment, SegmentA]}. - -segment_fold(Fun, Acc, {Segments, CachedSegments}) -> - dict:fold(fun (_Seg, Segment, Acc1) -> Fun(Segment, Acc1) end, - lists:foldl(Fun, Acc, CachedSegments), Segments). - -segment_map(Fun, {Segments, CachedSegments}) -> - {dict:map(fun (_Seg, Segment) -> Fun(Segment) end, Segments), - lists:map(Fun, CachedSegments)}. - -segment_nums({Segments, CachedSegments}) -> - lists:map(fun (#segment { num = Num }) -> Num end, CachedSegments) ++ - dict:fetch_keys(Segments). - -segments_new() -> - {dict:new(), []}. - -write_entry_to_segment(_RelSeq, {?PUB, del, ack}, Hdl) -> - Hdl; -write_entry_to_segment(RelSeq, {Pub, Del, Ack}, Hdl) -> - ok = case Pub of - no_pub -> - ok; - {Guid, MsgProps, IsPersistent} -> - file_handle_cache:append( - Hdl, [<>, - create_pub_record_body(Guid, MsgProps)]) - end, - ok = case {Del, Ack} of - {no_del, no_ack} -> - ok; - _ -> - Binary = <>, - file_handle_cache:append( - Hdl, case {Del, Ack} of - {del, ack} -> [Binary, Binary]; - _ -> Binary - end) - end, - Hdl. - -read_bounded_segment(Seg, {StartSeg, StartRelSeq}, {EndSeg, EndRelSeq}, - {Messages, Segments}, Dir) -> - Segment = segment_find_or_new(Seg, Dir, Segments), - {segment_entries_foldr( - fun (RelSeq, {{Guid, MsgProps, IsPersistent}, IsDelivered, no_ack}, Acc) - when (Seg > StartSeg orelse StartRelSeq =< RelSeq) andalso - (Seg < EndSeg orelse EndRelSeq >= RelSeq) -> - [ {Guid, reconstruct_seq_id(StartSeg, RelSeq), MsgProps, - IsPersistent, IsDelivered == del} | Acc ]; - (_RelSeq, _Value, Acc) -> - Acc - end, Messages, Segment), - segment_store(Segment, Segments)}. - -segment_entries_foldr(Fun, Init, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, _UnackedCount} = load_segment(false, Segment), - {SegEntries1, _UnackedCountD} = segment_plus_journal(SegEntries, JEntries), - array:sparse_foldr(Fun, Init, SegEntries1). - -%% Loading segments -%% -%% Does not do any combining with the journal at all. -load_segment(KeepAcked, #segment { path = Path }) -> - case filelib:is_file(Path) of - false -> {array_new(), 0}; - true -> {ok, Hdl} = file_handle_cache:open(Path, ?READ_AHEAD_MODE, []), - {ok, 0} = file_handle_cache:position(Hdl, bof), - Res = load_segment_entries(KeepAcked, Hdl, array_new(), 0), - ok = file_handle_cache:close(Hdl), - Res - end. - -load_segment_entries(KeepAcked, Hdl, SegEntries, UnackedCount) -> - case file_handle_cache:read(Hdl, ?REL_SEQ_ONLY_ENTRY_LENGTH_BYTES) of - {ok, <>} -> - {Guid, MsgProps} = read_pub_record_body(Hdl), - Obj = {{Guid, MsgProps, 1 == IsPersistentNum}, no_del, no_ack}, - SegEntries1 = array:set(RelSeq, Obj, SegEntries), - load_segment_entries(KeepAcked, Hdl, SegEntries1, - UnackedCount + 1); - {ok, <>} -> - {UnackedCountDelta, SegEntries1} = - case array:get(RelSeq, SegEntries) of - {Pub, no_del, no_ack} -> - { 0, array:set(RelSeq, {Pub, del, no_ack}, SegEntries)}; - {Pub, del, no_ack} when KeepAcked -> - {-1, array:set(RelSeq, {Pub, del, ack}, SegEntries)}; - {_Pub, del, no_ack} -> - {-1, array:reset(RelSeq, SegEntries)} - end, - load_segment_entries(KeepAcked, Hdl, SegEntries1, - UnackedCount + UnackedCountDelta); - _ErrOrEoF -> - {SegEntries, UnackedCount} - end. - -array_new() -> - array:new([{default, undefined}, fixed, {size, ?SEGMENT_ENTRY_COUNT}]). - -bool_to_int(true ) -> 1; -bool_to_int(false) -> 0. - -%%---------------------------------------------------------------------------- -%% journal & segment combination -%%---------------------------------------------------------------------------- - -%% Combine what we have just read from a segment file with what we're -%% holding for that segment in memory. There must be no duplicates. -segment_plus_journal(SegEntries, JEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {SegEntriesOut, AdditionalUnacked}) -> - SegEntry = array:get(RelSeq, SegEntriesOut), - {Obj, AdditionalUnackedDelta} = - segment_plus_journal1(SegEntry, JObj), - {case Obj of - undefined -> array:reset(RelSeq, SegEntriesOut); - _ -> array:set(RelSeq, Obj, SegEntriesOut) - end, - AdditionalUnacked + AdditionalUnackedDelta} - end, {SegEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item which we may be adding to (for items only in the journal), -%% modifying in (bits in both), or, when returning 'undefined', -%% erasing from (ack in journal, not segment) the segment array. The -%% other element of the tuple is the delta for AdditionalUnacked. -segment_plus_journal1(undefined, {?PUB, no_del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, ack}) -> - {undefined, 0}; - -segment_plus_journal1({?PUB = Pub, no_del, no_ack}, {no_pub, del, no_ack}) -> - {{Pub, del, no_ack}, 0}; -segment_plus_journal1({?PUB, no_del, no_ack}, {no_pub, del, ack}) -> - {undefined, -1}; -segment_plus_journal1({?PUB, del, no_ack}, {no_pub, no_del, ack}) -> - {undefined, -1}. - -%% Remove from the journal entries for a segment, items that are -%% duplicates of entries found in the segment itself. Used on start up -%% to clean up the journal. -journal_minus_segment(JEntries, SegEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {JEntriesOut, UnackedRemoved}) -> - SegEntry = array:get(RelSeq, SegEntries), - {Obj, UnackedRemovedDelta} = - journal_minus_segment1(JObj, SegEntry), - {case Obj of - keep -> JEntriesOut; - undefined -> array:reset(RelSeq, JEntriesOut); - _ -> array:set(RelSeq, Obj, JEntriesOut) - end, - UnackedRemoved + UnackedRemovedDelta} - end, {JEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item we are adding to or modifying in the (initially fresh) journal -%% array. If the item is 'undefined' we leave the journal array -%% alone. The other element of the tuple is the deltas for -%% UnackedRemoved. - -%% Both the same. Must be at least the publish -journal_minus_segment1({?PUB, _Del, no_ack} = Obj, Obj) -> - {undefined, 1}; -journal_minus_segment1({?PUB, _Del, ack} = Obj, Obj) -> - {undefined, 0}; - -%% Just publish in journal -journal_minus_segment1({?PUB, no_del, no_ack}, undefined) -> - {keep, 0}; - -%% Publish and deliver in journal -journal_minus_segment1({?PUB, del, no_ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, no_ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, no_ack}, 1}; - -%% Publish, deliver and ack in journal -journal_minus_segment1({?PUB, del, ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, ack}, 1}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, del, no_ack}) -> - {{no_pub, no_del, ack}, 1}; - -%% Just deliver in journal -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, del, no_ack}) -> - {undefined, 0}; - -%% Just ack in journal -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, ack}) -> - {undefined, -1}; - -%% Deliver and ack in journal -journal_minus_segment1({no_pub, del, ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, no_ack}) -> - {{no_pub, no_del, ack}, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, ack}) -> - {undefined, -1}. diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl deleted file mode 100644 index 2d9a8f6c..00000000 --- a/src/rabbit_reader.erl +++ /dev/null @@ -1,956 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_reader). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([start_link/3, info_keys/0, info/1, info/2, shutdown/2]). - --export([system_continue/3, system_terminate/4, system_code_change/4]). - --export([init/4, mainloop/2]). - --export([conserve_memory/2, server_properties/0]). - --export([analyze_frame/3]). - --export([emit_stats/1]). - --import(gen_tcp). --import(inet). --import(prim_inet). - --define(HANDSHAKE_TIMEOUT, 10). --define(NORMAL_TIMEOUT, 3). --define(CLOSING_TIMEOUT, 1). --define(CHANNEL_TERMINATION_TIMEOUT, 3). --define(SILENT_CLOSE_DELAY, 3). --define(FRAME_MAX, 131072). %% set to zero once QPid fix their negotiation - -%--------------------------------------------------------------------------- - --record(v1, {parent, sock, connection, callback, recv_length, recv_ref, - connection_state, queue_collector, heartbeater, stats_timer, - channel_sup_sup_pid, start_heartbeat_fun}). - --define(STATISTICS_KEYS, [pid, recv_oct, recv_cnt, send_oct, send_cnt, - send_pend, state, channels]). - --define(CREATION_EVENT_KEYS, [pid, address, port, peer_address, peer_port, - peer_cert_subject, peer_cert_issuer, - peer_cert_validity, - protocol, user, vhost, timeout, frame_max, - client_properties]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%% connection lifecycle -%% -%% all state transitions and terminations are marked with *...* -%% -%% The lifecycle begins with: start handshake_timeout timer, *pre-init* -%% -%% all states, unless specified otherwise: -%% socket error -> *exit* -%% socket close -> *throw* -%% writer send failure -> *throw* -%% forced termination -> *exit* -%% handshake_timeout -> *throw* -%% pre-init: -%% receive protocol header -> send connection.start, *starting* -%% starting: -%% receive connection.start_ok -> send connection.tune, *tuning* -%% tuning: -%% receive connection.tune_ok -> start heartbeats, *opening* -%% opening: -%% receive connection.open -> send connection.open_ok, *running* -%% running: -%% receive connection.close -> -%% tell channels to terminate gracefully -%% if no channels then send connection.close_ok, start -%% terminate_connection timer, *closed* -%% else *closing* -%% forced termination -%% -> wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *exit* -%% channel exit with hard error -%% -> log error, wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *closed* -%% channel exit with soft error -%% -> log error, mark channel as closing, *running* -%% handshake_timeout -> ignore, *running* -%% heartbeat timeout -> *throw* -%% conserve_memory=true -> *blocking* -%% blocking: -%% conserve_memory=true -> *blocking* -%% conserve_memory=false -> *running* -%% receive a method frame for a content-bearing method -%% -> process, stop receiving, *blocked* -%% ...rest same as 'running' -%% blocked: -%% conserve_memory=true -> *blocked* -%% conserve_memory=false -> resume receiving, *running* -%% ...rest same as 'running' -%% closing: -%% socket close -> *terminate* -%% receive connection.close -> send connection.close_ok, -%% *closing* -%% receive frame -> ignore, *closing* -%% handshake_timeout -> ignore, *closing* -%% heartbeat timeout -> *throw* -%% channel exit with hard error -%% -> log error, wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *closed* -%% channel exit with soft error -%% -> log error, mark channel as closing -%% if last channel to exit then send connection.close_ok, -%% start terminate_connection timer, *closed* -%% else *closing* -%% channel exits normally -%% -> if last channel to exit then send connection.close_ok, -%% start terminate_connection timer, *closed* -%% closed: -%% socket close -> *terminate* -%% receive connection.close -> send connection.close_ok, -%% *closed* -%% receive connection.close_ok -> self() ! terminate_connection, -%% *closed* -%% receive frame -> ignore, *closed* -%% terminate_connection timeout -> *terminate* -%% handshake_timeout -> ignore, *closed* -%% heartbeat timeout -> *throw* -%% channel exit -> log error, *closed* -%% -%% -%% TODO: refactor the code so that the above is obvious - --define(IS_RUNNING(State), - (State#v1.connection_state =:= running orelse - State#v1.connection_state =:= blocking orelse - State#v1.connection_state =:= blocked)). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(start_heartbeat_fun() :: - fun ((rabbit_networking:socket(), non_neg_integer()) -> - rabbit_heartbeat:heartbeaters())). - --spec(start_link/3 :: (pid(), pid(), start_heartbeat_fun()) -> - rabbit_types:ok(pid())). --spec(info_keys/0 :: () -> [rabbit_types:info_key()]). --spec(info/1 :: (pid()) -> [rabbit_types:info()]). --spec(info/2 :: (pid(), [rabbit_types:info_key()]) -> [rabbit_types:info()]). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(shutdown/2 :: (pid(), string()) -> 'ok'). --spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok'). --spec(server_properties/0 :: () -> rabbit_framing:amqp_table()). - -%% These specs only exists to add no_return() to keep dialyzer happy --spec(init/4 :: (pid(), pid(), pid(), start_heartbeat_fun()) -> no_return()). --spec(start_connection/7 :: - (pid(), pid(), pid(), start_heartbeat_fun(), any(), - rabbit_networking:socket(), - fun ((rabbit_networking:socket()) -> - rabbit_types:ok_or_error2( - rabbit_networking:socket(), any()))) -> no_return()). - --spec(analyze_frame/3 :: - (_,_,_) -> - 'error' | - 'heartbeat' | - {'content_body',_} | - {'method',_,binary()} | - {'content_header', - char(), - char(), - non_neg_integer(), - binary()}). --spec(mainloop/2 :: (_,#v1{}) -> any()). --spec(system_code_change/4 :: (_,_,_,_) -> {'ok',_}). --spec(system_continue/3 :: (_,_,#v1{}) -> any()). --spec(system_terminate/4 :: (_,_,_,_) -> none()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link(ChannelSupSupPid, Collector, StartHeartbeatFun) -> - {ok, proc_lib:spawn_link(?MODULE, init, [self(), ChannelSupSupPid, - Collector, StartHeartbeatFun])}. - -shutdown(Pid, Explanation) -> - gen_server:call(Pid, {shutdown, Explanation}, infinity). - -init(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun) -> - Deb = sys:debug_options([]), - receive - {go, Sock, SockTransform} -> - start_connection( - Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, Sock, - SockTransform) - end. - -system_continue(Parent, Deb, State) -> - ?MODULE:mainloop(Deb, State#v1{parent = Parent}). - -system_terminate(Reason, _Parent, _Deb, _State) -> - exit(Reason). - -system_code_change(Misc, _Module, _OldVsn, _Extra) -> - {ok, Misc}. - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -emit_stats(Pid) -> - gen_server:cast(Pid, emit_stats). - -conserve_memory(Pid, Conserve) -> - Pid ! {conserve_memory, Conserve}, - ok. - -server_properties() -> - {ok, Product} = application:get_key(rabbit, id), - {ok, Version} = application:get_key(rabbit, vsn), - - %% Get any configuration-specified server properties - {ok, RawConfigServerProps} = application:get_env(rabbit, - server_properties), - - %% Normalize the simplifed (2-tuple) and unsimplified (3-tuple) forms - %% from the config and merge them with the generated built-in properties - NormalizedConfigServerProps = - [case X of - {KeyAtom, Value} -> {list_to_binary(atom_to_list(KeyAtom)), - longstr, - list_to_binary(Value)}; - {BinKey, Type, Value} -> {BinKey, Type, Value} - end || X <- RawConfigServerProps ++ - [{product, Product}, - {version, Version}, - {platform, "Erlang/OTP"}, - {copyright, ?COPYRIGHT_MESSAGE}, - {information, ?INFORMATION_MESSAGE}]], - - %% Filter duplicated properties in favor of config file provided values - lists:usort(fun ({K1,_,_}, {K2,_,_}) -> K1 =< K2 end, - NormalizedConfigServerProps). - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -socket_op(Sock, Fun) -> - case Fun(Sock) of - {ok, Res} -> Res; - {error, Reason} -> rabbit_log:error("error on TCP connection ~p:~p~n", - [self(), Reason]), - rabbit_log:info("closing TCP connection ~p~n", - [self()]), - exit(normal) - end. - -start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, - Sock, SockTransform) -> - process_flag(trap_exit, true), - {PeerAddress, PeerPort} = socket_op(Sock, fun rabbit_net:peername/1), - PeerAddressS = inet_parse:ntoa(PeerAddress), - rabbit_log:info("starting TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - ClientSock = socket_op(Sock, SockTransform), - erlang:send_after(?HANDSHAKE_TIMEOUT * 1000, self(), - handshake_timeout), - try - mainloop(Deb, switch_callback( - #v1{parent = Parent, - sock = ClientSock, - connection = #connection{ - protocol = none, - user = none, - timeout_sec = ?HANDSHAKE_TIMEOUT, - frame_max = ?FRAME_MIN_SIZE, - vhost = none, - client_properties = none}, - callback = uninitialized_callback, - recv_length = 0, - recv_ref = none, - connection_state = pre_init, - queue_collector = Collector, - heartbeater = none, - stats_timer = - rabbit_event:init_stats_timer(), - channel_sup_sup_pid = ChannelSupSupPid, - start_heartbeat_fun = StartHeartbeatFun - }, - handshake, 8)) - catch - Ex -> (if Ex == connection_closed_abruptly -> - fun rabbit_log:warning/2; - true -> - fun rabbit_log:error/2 - end)("exception on TCP connection ~p from ~s:~p~n~p~n", - [self(), PeerAddressS, PeerPort, Ex]) - after - rabbit_log:info("closing TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - %% We don't close the socket explicitly. The reader is the - %% controlling process and hence its termination will close - %% the socket. Furthermore, gen_tcp:close/1 waits for pending - %% output to be sent, which results in unnecessary delays. - %% - %% gen_tcp:close(ClientSock), - rabbit_event:notify(connection_closed, [{pid, self()}]) - end, - done. - -mainloop(Deb, State = #v1{parent = Parent, sock= Sock, recv_ref = Ref}) -> - %%?LOGDEBUG("Reader mainloop: ~p bytes available, need ~p~n", [HaveBytes, WaitUntilNBytes]), - receive - {inet_async, Sock, Ref, {ok, Data}} -> - {State1, Callback1, Length1} = - handle_input(State#v1.callback, Data, - State#v1{recv_ref = none}), - mainloop(Deb, switch_callback(State1, Callback1, Length1)); - {inet_async, Sock, Ref, {error, closed}} -> - if State#v1.connection_state =:= closed -> - State; - true -> - throw(connection_closed_abruptly) - end; - {inet_async, Sock, Ref, {error, Reason}} -> - throw({inet_error, Reason}); - {conserve_memory, Conserve} -> - mainloop(Deb, internal_conserve_memory(Conserve, State)); - {'EXIT', Parent, Reason} -> - terminate(io_lib:format("broker forced connection closure " - "with reason '~w'", [Reason]), State), - %% this is what we are expected to do according to - %% http://www.erlang.org/doc/man/sys.html - %% - %% If we wanted to be *really* nice we should wait for a - %% while for clients to close the socket at their end, - %% just as we do in the ordinary error case. However, - %% since this termination is initiated by our parent it is - %% probably more important to exit quickly. - exit(Reason); - {channel_exit, _Chan, E = {writer, send_failed, _Error}} -> - throw(E); - {channel_exit, ChannelOrFrPid, Reason} -> - mainloop(Deb, handle_channel_exit(ChannelOrFrPid, Reason, State)); - {'DOWN', _MRef, process, ChSupPid, Reason} -> - mainloop(Deb, handle_dependent_exit(ChSupPid, Reason, State)); - terminate_connection -> - State; - handshake_timeout -> - if ?IS_RUNNING(State) orelse - State#v1.connection_state =:= closing orelse - State#v1.connection_state =:= closed -> - mainloop(Deb, State); - true -> - throw({handshake_timeout, State#v1.callback}) - end; - timeout -> - throw({timeout, State#v1.connection_state}); - {'$gen_call', From, {shutdown, Explanation}} -> - {ForceTermination, NewState} = terminate(Explanation, State), - gen_server:reply(From, ok), - case ForceTermination of - force -> ok; - normal -> mainloop(Deb, NewState) - end; - {'$gen_call', From, info} -> - gen_server:reply(From, infos(?INFO_KEYS, State)), - mainloop(Deb, State); - {'$gen_call', From, {info, Items}} -> - gen_server:reply(From, try {ok, infos(Items, State)} - catch Error -> {error, Error} - end), - mainloop(Deb, State); - {'$gen_cast', emit_stats} -> - State1 = internal_emit_stats(State), - mainloop(Deb, State1); - {system, From, Request} -> - sys:handle_system_msg(Request, From, - Parent, ?MODULE, Deb, State); - Other -> - %% internal error -> something worth dying for - exit({unexpected_message, Other}) - end. - -switch_callback(State = #v1{connection_state = blocked, - heartbeater = Heartbeater}, Callback, Length) -> - ok = rabbit_heartbeat:pause_monitor(Heartbeater), - State#v1{callback = Callback, recv_length = Length, recv_ref = none}; -switch_callback(State, Callback, Length) -> - Ref = inet_op(fun () -> rabbit_net:async_recv( - State#v1.sock, Length, infinity) end), - State#v1{callback = Callback, recv_length = Length, recv_ref = Ref}. - -terminate(Explanation, State) when ?IS_RUNNING(State) -> - {normal, send_exception(State, 0, - rabbit_misc:amqp_error( - connection_forced, Explanation, [], none))}; -terminate(_Explanation, State) -> - {force, State}. - -internal_conserve_memory(true, State = #v1{connection_state = running}) -> - State#v1{connection_state = blocking}; -internal_conserve_memory(false, State = #v1{connection_state = blocking}) -> - State#v1{connection_state = running}; -internal_conserve_memory(false, State = #v1{connection_state = blocked, - heartbeater = Heartbeater, - callback = Callback, - recv_length = Length, - recv_ref = none}) -> - ok = rabbit_heartbeat:resume_monitor(Heartbeater), - switch_callback(State#v1{connection_state = running}, Callback, Length); -internal_conserve_memory(_Conserve, State) -> - State. - -close_connection(State = #v1{queue_collector = Collector, - connection = #connection{ - timeout_sec = TimeoutSec}}) -> - %% The spec says "Exclusive queues may only be accessed by the - %% current connection, and are deleted when that connection - %% closes." This does not strictly imply synchrony, but in - %% practice it seems to be what people assume. - rabbit_queue_collector:delete_all(Collector), - %% We terminate the connection after the specified interval, but - %% no later than ?CLOSING_TIMEOUT seconds. - TimeoutMillisec = - 1000 * if TimeoutSec > 0 andalso - TimeoutSec < ?CLOSING_TIMEOUT -> TimeoutSec; - true -> ?CLOSING_TIMEOUT - end, - erlang:send_after(TimeoutMillisec, self(), terminate_connection), - State#v1{connection_state = closed}. - -close_channel(Channel, State) -> - put({channel, Channel}, closing), - State. - -handle_channel_exit(ChFrPid, Reason, State) when is_pid(ChFrPid) -> - {channel, Channel} = get({ch_fr_pid, ChFrPid}), - handle_exception(State, Channel, Reason); -handle_channel_exit(Channel, Reason, State) -> - handle_exception(State, Channel, Reason). - -handle_dependent_exit(ChSupPid, Reason, State) -> - case termination_kind(Reason) of - controlled -> - case erase({ch_sup_pid, ChSupPid}) of - undefined -> ok; - {_Channel, {ch_fr_pid, _ChFrPid} = ChFr} -> erase(ChFr) - end, - maybe_close(State); - uncontrolled -> - case channel_cleanup(ChSupPid) of - undefined -> - exit({abnormal_dependent_exit, ChSupPid, Reason}); - Channel -> - maybe_close(handle_exception(State, Channel, Reason)) - end - end. - -channel_cleanup(ChSupPid) -> - case get({ch_sup_pid, ChSupPid}) of - undefined -> undefined; - {{channel, Channel}, ChFr} -> erase({channel, Channel}), - erase(ChFr), - erase({ch_sup_pid, ChSupPid}), - Channel - end. - -all_channels() -> [ChFrPid || {{ch_sup_pid, _ChSupPid}, - {_Channel, {ch_fr_pid, ChFrPid}}} <- get()]. - -terminate_channels() -> - NChannels = - length([rabbit_framing_channel:shutdown(ChFrPid) - || ChFrPid <- all_channels()]), - if NChannels > 0 -> - Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, - TimerRef = erlang:send_after(Timeout, self(), cancel_wait), - wait_for_channel_termination(NChannels, TimerRef); - true -> ok - end. - -wait_for_channel_termination(0, TimerRef) -> - case erlang:cancel_timer(TimerRef) of - false -> receive - cancel_wait -> ok - end; - _ -> ok - end; - -wait_for_channel_termination(N, TimerRef) -> - receive - {'DOWN', _MRef, process, ChSupPid, Reason} -> - case channel_cleanup(ChSupPid) of - undefined -> - exit({abnormal_dependent_exit, ChSupPid, Reason}); - Channel -> - case termination_kind(Reason) of - controlled -> - ok; - uncontrolled -> - rabbit_log:error( - "connection ~p, channel ~p - " - "error while terminating:~n~p~n", - [self(), Channel, Reason]) - end, - wait_for_channel_termination(N-1, TimerRef) - end; - cancel_wait -> - exit(channel_termination_timeout) - end. - -maybe_close(State = #v1{connection_state = closing, - connection = #connection{protocol = Protocol}, - sock = Sock}) -> - case all_channels() of - [] -> - NewState = close_connection(State), - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - NewState; - _ -> State - end; -maybe_close(State) -> - State. - -termination_kind(normal) -> controlled; -termination_kind(shutdown) -> controlled; -termination_kind({shutdown, _Term}) -> controlled; -termination_kind(_) -> uncontrolled. - -handle_frame(Type, 0, Payload, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}}) - when CS =:= closing; CS =:= closed -> - case analyze_frame(Type, Payload, Protocol) of - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - _Other -> State - end; -handle_frame(_Type, _Channel, _Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_frame(Type, 0, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, 0, Type, Payload}); - heartbeat -> State; - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - Other -> throw({unexpected_frame_on_channel0, Other}) - end; -handle_frame(Type, Channel, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, Channel, Type, Payload}); - heartbeat -> throw({unexpected_heartbeat_frame, Channel}); - AnalyzedFrame -> - %%?LOGDEBUG("Ch ~p Frame ~p~n", [Channel, AnalyzedFrame]), - case get({channel, Channel}) of - {ch_fr_pid, ChFrPid} -> - ok = rabbit_framing_channel:process(ChFrPid, AnalyzedFrame), - case AnalyzedFrame of - {method, 'channel.close', _} -> - erase({channel, Channel}), - State; - {method, MethodName, _} -> - case (State#v1.connection_state =:= blocking andalso - Protocol:method_has_content(MethodName)) of - true -> State#v1{connection_state = blocked}; - false -> State - end; - _ -> - State - end; - closing -> - %% According to the spec, after sending a - %% channel.close we must ignore all frames except - %% channel.close and channel.close_ok. In the - %% event of a channel.close, we should send back a - %% channel.close_ok. - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - erase({channel, Channel}); - {method, 'channel.close', _} -> - %% We're already closing this channel, so - %% there's no cleanup to do (notify - %% queues, etc.) - ok = rabbit_writer:send_command(State#v1.sock, - #'channel.close_ok'{}); - _ -> ok - end, - State; - undefined -> - case ?IS_RUNNING(State) of - true -> ok = send_to_new_channel( - Channel, AnalyzedFrame, State), - State; - false -> throw({channel_frame_while_starting, - Channel, State#v1.connection_state, - AnalyzedFrame}) - end - end - end. - -analyze_frame(?FRAME_METHOD, - <>, - Protocol) -> - MethodName = Protocol:lookup_method_name({ClassId, MethodId}), - {method, MethodName, MethodFields}; -analyze_frame(?FRAME_HEADER, - <>, - _Protocol) -> - {content_header, ClassId, Weight, BodySize, Properties}; -analyze_frame(?FRAME_BODY, Body, _Protocol) -> - {content_body, Body}; -analyze_frame(?FRAME_HEARTBEAT, <<>>, _Protocol) -> - heartbeat; -analyze_frame(_Type, _Body, _Protocol) -> - error. - -handle_input(frame_header, <>, State) -> - %%?LOGDEBUG("Got frame header: ~p/~p/~p~n", [Type, Channel, PayloadSize]), - {ensure_stats_timer(State), {frame_payload, Type, Channel, PayloadSize}, - PayloadSize + 1}; - -handle_input({frame_payload, Type, Channel, PayloadSize}, PayloadAndMarker, State) -> - case PayloadAndMarker of - <> -> - %%?LOGDEBUG("Frame completed: ~p/~p/~p~n", [Type, Channel, Payload]), - NewState = handle_frame(Type, Channel, Payload, State), - {NewState, frame_header, 7}; - _ -> - throw({bad_payload, PayloadAndMarker}) - end; - -%% The two rules pertaining to version negotiation: -%% -%% * If the server cannot support the protocol specified in the -%% protocol header, it MUST respond with a valid protocol header and -%% then close the socket connection. -%% -%% * The server MUST provide a protocol version that is lower than or -%% equal to that requested by the client in the protocol header. -handle_input(handshake, <<"AMQP", 0, 0, 9, 1>>, State) -> - start_connection({0, 9, 1}, rabbit_framing_amqp_0_9_1, State); - -%% This is the protocol header for 0-9, which we can safely treat as -%% though it were 0-9-1. -handle_input(handshake, <<"AMQP", 1, 1, 0, 9>>, State) -> - start_connection({0, 9, 0}, rabbit_framing_amqp_0_9_1, State); - -%% This is what most clients send for 0-8. The 0-8 spec, confusingly, -%% defines the version as 8-0. -handle_input(handshake, <<"AMQP", 1, 1, 8, 0>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -%% The 0-8 spec as on the AMQP web site actually has this as the -%% protocol header; some libraries e.g., py-amqplib, send it when they -%% want 0-8. -handle_input(handshake, <<"AMQP", 1, 1, 9, 1>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -handle_input(handshake, <<"AMQP", A, B, C, D>>, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_version, A, B, C, D}); - -handle_input(handshake, Other, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_header, Other}); - -handle_input(Callback, Data, _State) -> - throw({bad_input, Callback, Data}). - -%% Offer a protocol version to the client. Connection.start only -%% includes a major and minor version number, Luckily 0-9 and 0-9-1 -%% are similar enough that clients will be happy with either. -start_connection({ProtocolMajor, ProtocolMinor, _ProtocolRevision}, - Protocol, - State = #v1{sock = Sock, connection = Connection}) -> - Start = #'connection.start'{ version_major = ProtocolMajor, - version_minor = ProtocolMinor, - server_properties = server_properties(), - mechanisms = <<"PLAIN AMQPLAIN">>, - locales = <<"en_US">> }, - ok = send_on_channel0(Sock, Start, Protocol), - {State#v1{connection = Connection#connection{ - timeout_sec = ?NORMAL_TIMEOUT, - protocol = Protocol}, - connection_state = starting}, - frame_header, 7}. - -refuse_connection(Sock, Exception) -> - ok = inet_op(fun () -> rabbit_net:send(Sock, <<"AMQP",0,0,9,1>>) end), - throw(Exception). - -ensure_stats_timer(State = #v1{stats_timer = StatsTimer, - connection_state = running}) -> - Self = self(), - State#v1{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(Self) end)}; -ensure_stats_timer(State) -> - State. - -%%-------------------------------------------------------------------------- - -handle_method0(MethodName, FieldsBin, - State = #v1{connection = #connection{protocol = Protocol}}) -> - try - handle_method0(Protocol:decode_method_fields(MethodName, FieldsBin), - State) - catch exit:Reason -> - CompleteReason = case Reason of - #amqp_error{method = none} -> - Reason#amqp_error{method = MethodName}; - OtherReason -> OtherReason - end, - case ?IS_RUNNING(State) of - true -> send_exception(State, 0, CompleteReason); - %% We don't trust the client at this point - force - %% them to wait for a bit so they can't DOS us with - %% repeated failed logins etc. - false -> timer:sleep(?SILENT_CLOSE_DELAY * 1000), - throw({channel0_error, State#v1.connection_state, - CompleteReason}) - end - end. - -handle_method0(#'connection.start_ok'{mechanism = Mechanism, - response = Response, - client_properties = ClientProperties}, - State = #v1{connection_state = starting, - connection = Connection = - #connection{protocol = Protocol}, - sock = Sock}) -> - User = rabbit_access_control:check_login(Mechanism, Response), - Tune = #'connection.tune'{channel_max = 0, - frame_max = ?FRAME_MAX, - heartbeat = 0}, - ok = send_on_channel0(Sock, Tune, Protocol), - State#v1{connection_state = tuning, - connection = Connection#connection{ - user = User, - client_properties = ClientProperties}}; -handle_method0(#'connection.tune_ok'{frame_max = FrameMax, - heartbeat = ClientHeartbeat}, - State = #v1{connection_state = tuning, - connection = Connection, - sock = Sock, - start_heartbeat_fun = SHF}) -> - if (FrameMax /= 0) and (FrameMax < ?FRAME_MIN_SIZE) -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w < ~w min size", - [FrameMax, ?FRAME_MIN_SIZE]); - (?FRAME_MAX /= 0) and (FrameMax > ?FRAME_MAX) -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w > ~w max size", - [FrameMax, ?FRAME_MAX]); - true -> - Heartbeater = SHF(Sock, ClientHeartbeat), - State#v1{connection_state = opening, - connection = Connection#connection{ - timeout_sec = ClientHeartbeat, - frame_max = FrameMax}, - heartbeater = Heartbeater} - end; - -handle_method0(#'connection.open'{virtual_host = VHostPath}, - - State = #v1{connection_state = opening, - connection = Connection = #connection{ - user = User, - protocol = Protocol}, - sock = Sock, - stats_timer = StatsTimer}) -> - ok = rabbit_access_control:check_vhost_access(User, VHostPath), - NewConnection = Connection#connection{vhost = VHostPath}, - ok = send_on_channel0(Sock, #'connection.open_ok'{}, Protocol), - State1 = internal_conserve_memory( - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - State#v1{connection_state = running, - connection = NewConnection}), - rabbit_event:notify(connection_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State1) end), - State1; -handle_method0(#'connection.close'{}, State) when ?IS_RUNNING(State) -> - lists:foreach(fun rabbit_framing_channel:shutdown/1, all_channels()), - maybe_close(State#v1{connection_state = closing}); -handle_method0(#'connection.close'{}, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}, - sock = Sock}) - when CS =:= closing; CS =:= closed -> - %% We're already closed or closing, so we don't need to cleanup - %% anything. - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - State; -handle_method0(#'connection.close_ok'{}, - State = #v1{connection_state = closed}) -> - self() ! terminate_connection, - State; -handle_method0(_Method, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_method0(_Method, #v1{connection_state = S}) -> - rabbit_misc:protocol_error( - channel_error, "unexpected method in connection state ~w", [S]). - -send_on_channel0(Sock, Method, Protocol) -> - ok = rabbit_writer:internal_send_command(Sock, 0, Method, Protocol). - -%%-------------------------------------------------------------------------- - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, #v1{}) -> - self(); -i(address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({A, _}) -> A end, Sock); -i(port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({_, P}) -> P end, Sock); -i(peer_address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({A, _}) -> A end, Sock); -i(peer_port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({_, P}) -> P end, Sock); -i(peer_cert_issuer, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_issuer/1, Sock); -i(peer_cert_subject, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_subject/1, Sock); -i(peer_cert_validity, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_validity/1, Sock); -i(SockStat, #v1{sock = Sock}) when SockStat =:= recv_oct; - SockStat =:= recv_cnt; - SockStat =:= send_oct; - SockStat =:= send_cnt; - SockStat =:= send_pend -> - socket_info(fun () -> rabbit_net:getstat(Sock, [SockStat]) end, - fun ([{_, I}]) -> I end); -i(state, #v1{connection_state = S}) -> - S; -i(channels, #v1{}) -> - length(all_channels()); -i(protocol, #v1{connection = #connection{protocol = none}}) -> - none; -i(protocol, #v1{connection = #connection{protocol = Protocol}}) -> - Protocol:version(); -i(user, #v1{connection = #connection{user = #user{username = Username}}}) -> - Username; -i(user, #v1{connection = #connection{user = none}}) -> - ''; -i(vhost, #v1{connection = #connection{vhost = VHost}}) -> - VHost; -i(timeout, #v1{connection = #connection{timeout_sec = Timeout}}) -> - Timeout; -i(frame_max, #v1{connection = #connection{frame_max = FrameMax}}) -> - FrameMax; -i(client_properties, #v1{connection = #connection{ - client_properties = ClientProperties}}) -> - ClientProperties; -i(Item, #v1{}) -> - throw({bad_argument, Item}). - -socket_info(Get, Select, Sock) -> - socket_info(fun() -> Get(Sock) end, Select). - -socket_info(Get, Select) -> - case Get() of - {ok, T} -> Select(T); - {error, _} -> '' - end. - -cert_info(F, Sock) -> - case rabbit_net:peercert(Sock) of - nossl -> ''; - {error, no_peercert} -> ''; - {ok, Cert} -> F(Cert) - end. - -%%-------------------------------------------------------------------------- - -send_to_new_channel(Channel, AnalyzedFrame, State) -> - #v1{sock = Sock, queue_collector = Collector, - channel_sup_sup_pid = ChanSupSup, - connection = #connection{protocol = Protocol, - frame_max = FrameMax, - user = #user{username = Username}, - vhost = VHost}} = State, - {ok, ChSupPid, ChFrPid} = - rabbit_channel_sup_sup:start_channel( - ChanSupSup, {Protocol, Sock, Channel, FrameMax, - self(), Username, VHost, Collector}), - erlang:monitor(process, ChSupPid), - put({channel, Channel}, {ch_fr_pid, ChFrPid}), - put({ch_sup_pid, ChSupPid}, {{channel, Channel}, {ch_fr_pid, ChFrPid}}), - put({ch_fr_pid, ChFrPid}, {channel, Channel}), - ok = rabbit_framing_channel:process(ChFrPid, AnalyzedFrame). - -log_channel_error(ConnectionState, Channel, Reason) -> - rabbit_log:error("connection ~p (~p), channel ~p - error:~n~p~n", - [self(), ConnectionState, Channel, Reason]). - -handle_exception(State = #v1{connection_state = closed}, Channel, Reason) -> - log_channel_error(closed, Channel, Reason), - State; -handle_exception(State = #v1{connection_state = CS}, Channel, Reason) -> - log_channel_error(CS, Channel, Reason), - send_exception(State, Channel, Reason). - -send_exception(State = #v1{connection = #connection{protocol = Protocol}}, - Channel, Reason) -> - {ShouldClose, CloseChannel, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - NewState = case ShouldClose of - true -> terminate_channels(), - close_connection(State); - false -> close_channel(Channel, State) - end, - ok = rabbit_writer:internal_send_command( - NewState#v1.sock, CloseChannel, CloseMethod, Protocol), - NewState. - -internal_emit_stats(State = #v1{stats_timer = StatsTimer}) -> - rabbit_event:notify(connection_stats, infos(?STATISTICS_KEYS, State)), - State#v1{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}. diff --git a/src/rabbit_restartable_sup.erl b/src/rabbit_restartable_sup.erl deleted file mode 100644 index 4f079251..00000000 --- a/src/rabbit_restartable_sup.erl +++ /dev/null @@ -1,58 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_restartable_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/2 :: - (atom(),{_,_,_}) -> 'ignore' | {'error',_} | {'ok',pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Name, {_M, _F, _A} = Fun) -> - supervisor:start_link({local, Name}, ?MODULE, [Fun]). - -init([{Mod, _F, _A} = Fun]) -> - {ok, {{one_for_one, 10, 10}, - [{Mod, Fun, transient, ?MAX_WAIT, worker, [Mod]}]}}. diff --git a/src/rabbit_sup.erl b/src/rabbit_sup.erl deleted file mode 100644 index 6998ca36..00000000 --- a/src/rabbit_sup.erl +++ /dev/null @@ -1,95 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_sup). - --behaviour(supervisor). - --export([start_link/0, start_child/1, start_child/2, start_child/3, - start_restartable_child/1, start_restartable_child/2, stop_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_child/1 :: (atom() | tuple()) -> 'ok'). --spec(start_child/2 :: (atom() | tuple(),[any()]) -> 'ok'). --spec(start_child/3 :: (_,atom() | tuple(),[any()]) -> 'ok'). --spec(start_restartable_child/1 :: (atom()) -> 'ok'). --spec(start_restartable_child/2 :: (atom(),_) -> 'ok'). --spec(stop_child/1 :: - (_) -> 'ok' | {'error','not_found' | 'running' | 'simple_one_for_one'}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Mod) -> - start_child(Mod, []). - -start_child(Mod, Args) -> - start_child(Mod, Mod, Args). - -start_child(ChildId, Mod, Args) -> - {ok, _} = supervisor:start_child(?SERVER, - {ChildId, {Mod, start_link, Args}, - transient, ?MAX_WAIT, worker, [Mod]}), - ok. - -start_restartable_child(Mod) -> - start_restartable_child(Mod, []). - -start_restartable_child(Mod, Args) -> - Name = list_to_atom(atom_to_list(Mod) ++ "_sup"), - {ok, _} = supervisor:start_child( - ?SERVER, - {Name, {rabbit_restartable_sup, start_link, - [Name, {Mod, start_link, Args}]}, - transient, infinity, supervisor, [rabbit_restartable_sup]}), - ok. - -stop_child(ChildId) -> - case supervisor:terminate_child(?SERVER, ChildId) of - ok -> supervisor:delete_child(?SERVER, ChildId); - E -> E - end. - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl deleted file mode 100644 index 2e1aa942..00000000 --- a/src/rabbit_tests.erl +++ /dev/null @@ -1,2331 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_tests). - --compile([export_all]). - --export([all_tests/0, test_parsing/0]). - --import(lists). - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). --include_lib("kernel/include/file.hrl"). - --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(add_log_handlers/1 :: ([any()]) -> 'ok'). --spec(all_tests/0 :: () -> 'passed'). --spec(assert_prop/3 :: ([any()],_,_) -> any()). --spec(assert_props/2 :: (_,[any()]) -> [any()]). --spec(await_response/1 :: (non_neg_integer()) -> 'ok'). --spec(bpqueue_mff/4 :: - (fun((_,_,_,_) -> any()),_,{_,_},_) -> {[{_,[any()]}],_}). --spec(bpqueue_mffl/3 :: (_,{_,_},_) -> {[{_,[any()]}],_}). --spec(bpqueue_mffr/3 :: (_,{_,_},_) -> {[{_,[any()]}],_}). --spec(bpqueue_test/5 :: - (fun((_,_,_) -> any()), - fun((_) -> any()), - fun((_) -> any()), - fun((_,_,_) -> any()), - fun((_,_,_,_) -> any())) -> - {_,_}). --spec(check_get_options/3 :: ({_,[any()]},[any()],_) -> 'ok'). --spec(check_pg_local/3 :: ('ok',[any()],[any()]) -> ['true',...]). --spec(check_variable_queue_status/2 :: - (_,[any()]) -> - {'vqstate', - queue(), - {_,_}, - _, - {_,_}, - queue(), - _, - dict(), - _, - _, - {'sync',_,_,_,[any()]}, - _, - _, - _, - _, - _, - _, - _, - _, - _, - _, - _, - {'rates',_,_,_,_,_}}). --spec(clean_logs/2 :: ([atom() | [atom() | [any()] | char()]],_) -> 'ok'). --spec(control_action/2 :: (_,_) -> any()). --spec(control_action/3 :: (_,_,_) -> any()). --spec(control_action/4 :: (_,_,_,_) -> any()). --spec(default_options/0 :: - () -> - [{[45 | 112 | 113,...], - [47 | 97 | 101 | 102 | 108 | 115,...]}, - ...]). --spec(delete_file/1 :: - (atom() | [atom() | [any()] | char()]) -> 'ok' | {'error',atom()}). --spec(delete_log_handlers/1 :: ([atom()]) -> 'ok'). --spec(empty_files/1 :: ([atom() | [any()]]) -> [boolean() | {'error',atom()}]). --spec(empty_test_queue/0 :: () -> 'ok'). --spec(expand_options/2 :: ([any()],_) -> any()). --spec(foreach_with_msg_store_client/4 :: (_,_,_,[any()]) -> 'ok'). --spec(guid_bin/1 :: (_) -> binary()). --spec(info_action/3 :: (_,[any()],_) -> 'ok'). --spec(init_test_queue/0 :: - () -> {'undefined' | number(),{'qistate',_,_,_,_,_}}). --spec(make_files_non_writable/1 :: ([atom() | [any()]]) -> 'ok'). --spec(make_responder/1 :: (_) -> fun(() -> any())). --spec(make_responder/2 :: (_,_) -> fun(() -> any())). --spec(maybe_run_cluster_dependent_tests/0 :: () -> 'passed'). --spec(msg_store_contains/3 :: (_,[any()],_) -> any()). --spec(msg_store_read/2 :: ([any()],_) -> any()). --spec(msg_store_remove/2 :: (_,_) -> 'ok'). --spec(msg_store_remove/3 :: (_,_,_) -> 'ok'). --spec(msg_store_sync/2 :: - (_, - {'client_msstate',atom() | pid() | {atom(),_},_,_,_,_,_,_,_,_,_,_}) -> - 'ok'). --spec(msg_store_write/2 :: ([any()],_) -> 'ok'). --spec(must_exit/1 :: (_) -> 'ok'). --spec(non_empty_files/1 :: - ([atom() | [any()]]) -> [boolean() | {'error',atom()}]). --spec(priority_queue_in_all/2 :: (_,[any()]) -> any()). --spec(priority_queue_out_all/1 :: - ({'pqueue',nonempty_maybe_improper_list()} | - {'queue',maybe_improper_list(),maybe_improper_list()}) -> - [any()]). --spec(publish_fetch_and_ack/3 :: (non_neg_integer(),_,_) -> any()). --spec(queue_index_publish/3 :: - ([any()],boolean(),_) -> {_,maybe_improper_list()}). --spec(queue_name/1 :: (binary()) -> #resource{name::binary()}). --spec(restart_msg_store_empty/0 :: () -> 'ok'). --spec(restart_test_queue/1 :: - ({'qistate',_,{dict(),[any()]},_,_,_}) -> - {'undefined' | number(), - {'qistate',_,_,_,_,_}}). --spec(run_cluster_dependent_tests/1 :: (atom()) -> 'passed'). --spec(sequence_with_content/1 :: ([any()]) -> any()). --spec(set_permissions/2 :: (atom() | [any()],_) -> 'ok' | {'error',atom()}). --spec(spawn_responders/3 :: (_,_,integer()) -> [pid()]). --spec(test_app_management/0 :: () -> 'passed'). --spec(test_backing_queue/0 :: () -> 'passed'). --spec(test_bpqueue/0 :: () -> 'passed'). --spec(test_cluster_management/0 :: () -> 'passed'). --spec(test_cluster_management2/1 :: (atom()) -> 'passed'). --spec(test_content_framing/0 :: () -> 'passed'). --spec(test_content_framing/2 :: (number(),binary() | tuple()) -> 'passed'). --spec(test_content_prop_roundtrip/2 :: ([tuple()],binary()) -> binary()). --spec(test_content_properties/0 :: () -> 'passed'). --spec(test_content_transcoding/0 :: () -> 'passed'). --spec(test_delegates_async/1 :: (atom()) -> 'passed'). --spec(test_delegates_sync/1 :: (atom()) -> 'passed'). --spec(test_dropwhile/1 :: - (_) -> {_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_}). --spec(test_field_values/0 :: () -> 'passed'). --spec(test_file_handle_cache/0 :: () -> 'passed'). --spec(test_log_management/0 :: () -> 'passed'). --spec(test_log_management_during_startup/0 :: () -> 'passed'). --spec(test_logs_working/2 :: (atom() | [any()],atom() | [any()]) -> 'ok'). --spec(test_msg_store/0 :: () -> 'passed'). --spec(test_option_parser/0 :: () -> 'passed'). --spec(test_parsing/0 :: () -> 'passed'). --spec(test_pg_local/0 :: () -> 'passed'). --spec(test_priority_queue/0 :: () -> 'passed'). --spec(test_priority_queue/1 :: ({'pqueue',[any(),...]} | {'queue',[any()],[any()]}) -> {'false',boolean(),number(),[{number(),_}],[any()]} | {'true',boolean(),number(),[{number(),_}],[any()]}). --spec(test_queue/0 :: () -> #resource{name::binary()}). --spec(test_queue_index/0 :: () -> 'passed'). --spec(test_queue_index_props/0 :: () -> 'passed'). --spec(test_queue_recover/0 :: () -> 'passed'). --spec(test_server_status/0 :: () -> 'passed'). --spec(test_simple_n_element_queue/1 :: (integer()) -> 'passed'). --spec(test_spawn/1 :: (_) -> {pid(),pid()}). --spec(test_statistics/0 :: () -> 'passed'). --spec(test_statistics_event_receiver/1 :: - (atom() | pid() | port() | {atom(),atom()}) -> no_return()). --spec(test_statistics_receive_event/2 :: - (atom() | pid() | {atom(),_},fun((_) -> any())) -> any()). --spec(test_statistics_receive_event1/2 :: (_,fun((_) -> any())) -> any()). --spec(test_statistics_receiver/1 :: (_) -> 'ok'). --spec(test_supervisor_delayed_restart/0 :: () -> 'passed'). --spec(test_topic_match/2 :: - (maybe_improper_list( - binary() | - maybe_improper_list(any(),binary() | []) | - byte(), - binary() | []), - maybe_improper_list( - binary() | - maybe_improper_list(any(),binary() | []) | - byte(), - binary() | [])) -> - 'passed' | - {'topic_match_failure', - maybe_improper_list( - binary() | - maybe_improper_list( - any(), - binary() | []) | - byte(), - binary() | - []), - maybe_improper_list( - binary() | - maybe_improper_list(any(),binary() | []) | - byte(), - binary() | [])}). --spec(test_topic_match/3 :: - (maybe_improper_list( - binary() | - maybe_improper_list( - any(), - binary() | []) | - byte(), - binary() | []), - maybe_improper_list( - binary() | - maybe_improper_list(any(),binary() | []) | - byte(), - binary() | []), - _) -> - 'passed' | - {'topic_match_failure', - maybe_improper_list( - binary() | - maybe_improper_list(any(),binary() | []) | - byte(), - binary() | []), - maybe_improper_list( - binary() | - maybe_improper_list(any(),binary() | []) | - byte(), - binary() | [])}). --spec(test_topic_matching/0 :: () -> 'passed'). --spec(test_unfold/0 :: () -> 'passed'). --spec(test_user_management/0 :: () -> 'passed'). --spec(test_variable_queue/0 :: () -> 'passed'). --spec(test_variable_queue_all_the_bits_not_covered_elsewhere1/1 :: - (_) -> any()). --spec(test_variable_queue_all_the_bits_not_covered_elsewhere2/1 :: - ({'vqstate',_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_, - {'rates',_,_,number(),number(),_}}) -> - {_,_,_, - _,_,_, - _,_,_, - _,_,_, - _,_,_, - _,_,_, - _,_,_, - _,_}). --spec(test_variable_queue_dynamic_duration_change/1 :: - (_) -> {_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_}). --spec(test_variable_queue_partial_segments_delta_thing/1 :: - (_) -> {_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_}). --spec(variable_queue_fetch/5 :: - (integer(),_,_,_,_) -> {_,maybe_improper_list()}). --spec(variable_queue_publish/3 :: (_,integer(),_) -> any()). --spec(variable_queue_wait_for_shuffling_end/1 :: (_) -> any()). --spec(verify_read_with_published/4 :: (_,_,_,_) -> 'ko' | 'ok'). --spec(with_empty_test_queue/1 :: - (fun((_) -> any())) -> {'qistate',_,'undefined','undefined',_,_}). --spec(with_fresh_variable_queue/1 :: (fun((_) -> any())) -> 'passed'). --spec(with_msg_store_client/3 :: (_,_,fun((_) -> any())) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -test_content_prop_roundtrip(Datum, Binary) -> - Types = [element(1, E) || E <- Datum], - Values = [element(2, E) || E <- Datum], - Values = rabbit_binary_parser:parse_properties(Types, Binary), %% assertion - Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion - -all_tests() -> - application:set_env(rabbit, file_handles_high_watermark, 10, infinity), - ok = file_handle_cache:set_limit(10), - passed = test_file_handle_cache(), - passed = test_backing_queue(), - passed = test_priority_queue(), - passed = test_bpqueue(), - passed = test_pg_local(), - passed = test_unfold(), - passed = test_supervisor_delayed_restart(), - passed = test_parsing(), - passed = test_content_framing(), - passed = test_content_transcoding(), - passed = test_topic_matching(), - passed = test_log_management(), - passed = test_app_management(), - passed = test_log_management_during_startup(), - passed = test_statistics(), - passed = test_option_parser(), - passed = test_cluster_management(), - passed = test_user_management(), - passed = test_server_status(), - passed = maybe_run_cluster_dependent_tests(), - passed = test_configurable_server_properties(), - passed. - -maybe_run_cluster_dependent_tests() -> - SecondaryNode = rabbit_misc:makenode("hare"), - - case net_adm:ping(SecondaryNode) of - pong -> passed = run_cluster_dependent_tests(SecondaryNode); - pang -> io:format("Skipping cluster dependent tests with node ~p~n", - [SecondaryNode]) - end, - passed. - -run_cluster_dependent_tests(SecondaryNode) -> - SecondaryNodeS = atom_to_list(SecondaryNode), - - ok = control_action(stop_app, []), - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - - io:format("Running cluster dependent tests with node ~p~n", [SecondaryNode]), - passed = test_delegates_async(SecondaryNode), - passed = test_delegates_sync(SecondaryNode), - - passed. - -test_priority_queue() -> - - false = priority_queue:is_queue(not_a_queue), - - %% empty Q - Q = priority_queue:new(), - {true, true, 0, [], []} = test_priority_queue(Q), - - %% 1-4 element no-priority Q - true = lists:all(fun (X) -> X =:= passed end, - lists:map(fun test_simple_n_element_queue/1, - lists:seq(1, 4))), - - %% 1-element priority Q - Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), - - %% 2-element same-priority Q - Q2 = priority_queue:in(bar, 1, Q1), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q2), - - %% 2-element different-priority Q - Q3 = priority_queue:in(bar, 2, Q1), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q3), - - %% 1-element negative priority Q - Q4 = priority_queue:in(foo, -1, priority_queue:new()), - {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - - %% merge 2 * 2-element multi-different-priority Qs - Q11 = priority_queue:join(Q6, Q5), - {true, false, 4, [{1, bar}, {0, foo}, {0, foo}, {0, bar}], - [bar, foo, foo, bar]} = test_priority_queue(Q11), - - %% and the other way around - Q12 = priority_queue:join(Q5, Q6), - {true, false, 4, [{1, bar}, {0, foo}, {0, bar}, {0, foo}], - [bar, foo, bar, foo]} = test_priority_queue(Q12), - - %% merge with negative priorities - Q13 = priority_queue:join(Q4, Q5), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q13), - - %% and the other way around - Q14 = priority_queue:join(Q5, Q4), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q14), - - %% joins with empty queues: - Q1 = priority_queue:join(Q, Q1), - Q1 = priority_queue:join(Q1, Q), - - %% insert with priority into non-empty zero-priority queue - Q15 = priority_queue:in(baz, 1, Q5), - {true, false, 3, [{1, baz}, {0, foo}, {0, bar}], [baz, foo, bar]} = - test_priority_queue(Q15), - - passed. - -priority_queue_in_all(Q, L) -> - lists:foldl(fun (X, Acc) -> priority_queue:in(X, Acc) end, Q, L). - -priority_queue_out_all(Q) -> - case priority_queue:out(Q) of - {empty, _} -> []; - {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] - end. - -test_priority_queue(Q) -> - {priority_queue:is_queue(Q), - priority_queue:is_empty(Q), - priority_queue:len(Q), - priority_queue:to_list(Q), - priority_queue_out_all(Q)}. - -test_bpqueue() -> - Q = bpqueue:new(), - true = bpqueue:is_empty(Q), - 0 = bpqueue:len(Q), - [] = bpqueue:to_list(Q), - - Q1 = bpqueue_test(fun bpqueue:in/3, fun bpqueue:out/1, - fun bpqueue:to_list/1, - fun bpqueue:foldl/3, fun bpqueue:map_fold_filter_l/4), - Q2 = bpqueue_test(fun bpqueue:in_r/3, fun bpqueue:out_r/1, - fun (QR) -> lists:reverse( - [{P, lists:reverse(L)} || - {P, L} <- bpqueue:to_list(QR)]) - end, - fun bpqueue:foldr/3, fun bpqueue:map_fold_filter_r/4), - - [{foo, [1, 2]}, {bar, [3]}] = bpqueue:to_list(bpqueue:join(Q, Q1)), - [{bar, [3]}, {foo, [2, 1]}] = bpqueue:to_list(bpqueue:join(Q2, Q)), - [{foo, [1, 2]}, {bar, [3, 3]}, {foo, [2,1]}] = - bpqueue:to_list(bpqueue:join(Q1, Q2)), - - [{foo, [1, 2]}, {bar, [3]}, {foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list(bpqueue:join(Q1, Q1)), - - [{foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list( - bpqueue:from_list( - [{x, []}, {foo, [1]}, {y, []}, {foo, [2]}, {bar, [3]}, {z, []}])), - - [{undefined, [a]}] = bpqueue:to_list(bpqueue:from_list([{undefined, [a]}])), - - {4, [a,b,c,d]} = - bpqueue:foldl( - fun (Prefix, Value, {Prefix, Acc}) -> - {Prefix + 1, [Value | Acc]} - end, - {0, []}, bpqueue:from_list([{0,[d]}, {1,[c]}, {2,[b]}, {3,[a]}])), - - [{bar,3}, {foo,2}, {foo,1}] = - bpqueue:foldr(fun (P, V, I) -> [{P,V} | I] end, [], Q2), - - BPQL = [{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], - BPQ = bpqueue:from_list(BPQL), - - %% no effect - {BPQL, 0} = bpqueue_mffl([none], {none, []}, BPQ), - {BPQL, 0} = bpqueue_mffl([foo,bar], {none, [1]}, BPQ), - {BPQL, 0} = bpqueue_mffl([bar], {none, [3]}, BPQ), - {BPQL, 0} = bpqueue_mffr([bar], {foo, [5]}, BPQ), - - %% process 1 item - {[{foo,[-1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([foo,bar], {foo, [2]}, BPQ), - {[{foo,[1,2,2]}, {bar,[-3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([bar], {bar, [4]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,-7]}], 1} = - bpqueue_mffr([foo,bar], {foo, [6]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4]}, {baz,[-5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffr([bar], {baz, [4]}, BPQ), - - %% change prefix - {[{bar,[-1,-2,-2,-3,-4,-5,-5,-6,-7]}], 9} = - bpqueue_mffl([foo,bar], {bar, []}, BPQ), - {[{bar,[-1,-2,-2,3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {bar, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6]}, {foo,[7]}], 5} = - bpqueue_mffl([foo], {bar, [7]}, BPQ), - {[{foo,[1,2,2,-3,-4]}, {bar,[5]}, {foo,[5,6,7]}], 2} = - bpqueue_mffl([bar], {foo, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6,-7]}], 6} = - bpqueue_mffl([foo], {bar, []}, BPQ), - {[{foo,[1,2,2,-3,-4,-5,5,6,7]}], 3} = - bpqueue_mffl([bar], {foo, []}, BPQ), - - %% edge cases - {[{foo,[-1,-2,-2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {foo, [5]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[-5,-6,-7]}], 3} = - bpqueue_mffr([foo], {foo, [2]}, BPQ), - - passed. - -bpqueue_test(In, Out, List, Fold, MapFoldFilter) -> - Q = bpqueue:new(), - {empty, _Q} = Out(Q), - - ok = Fold(fun (Prefix, Value, ok) -> {error, Prefix, Value} end, ok, Q), - {Q1M, 0} = MapFoldFilter(fun(_P) -> throw(explosion) end, - fun(_V, _N) -> throw(explosion) end, 0, Q), - [] = bpqueue:to_list(Q1M), - - Q1 = In(bar, 3, In(foo, 2, In(foo, 1, Q))), - false = bpqueue:is_empty(Q1), - 3 = bpqueue:len(Q1), - [{foo, [1, 2]}, {bar, [3]}] = List(Q1), - - {{value, foo, 1}, Q3} = Out(Q1), - {{value, foo, 2}, Q4} = Out(Q3), - {{value, bar, 3}, _Q5} = Out(Q4), - - F = fun (QN) -> - MapFoldFilter(fun (foo) -> true; - (_) -> false - end, - fun (2, _Num) -> stop; - (V, Num) -> {bar, -V, V - Num} end, - 0, QN) - end, - {Q6, 0} = F(Q), - [] = bpqueue:to_list(Q6), - {Q7, 1} = F(Q1), - [{bar, [-1]}, {foo, [2]}, {bar, [3]}] = List(Q7), - - Q1. - -bpqueue_mffl(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_l/4, FF1A, FF2A, BPQ). - -bpqueue_mffr(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_r/4, FF1A, FF2A, BPQ). - -bpqueue_mff(Fold, FF1A, FF2A, BPQ) -> - FF1 = fun (Prefixes) -> - fun (P) -> lists:member(P, Prefixes) end - end, - FF2 = fun ({Prefix, Stoppers}) -> - fun (Val, Num) -> - case lists:member(Val, Stoppers) of - true -> stop; - false -> {Prefix, -Val, 1 + Num} - end - end - end, - Queue_to_list = fun ({LHS, RHS}) -> {bpqueue:to_list(LHS), RHS} end, - - Queue_to_list(Fold(FF1(FF1A), FF2(FF2A), 0, BPQ)). - -test_simple_n_element_queue(N) -> - Items = lists:seq(1, N), - Q = priority_queue_in_all(priority_queue:new(), Items), - ToListRes = [{0, X} || X <- Items], - {true, false, N, ToListRes, Items} = test_priority_queue(Q), - passed. - -test_pg_local() -> - [P, Q] = [spawn(fun () -> receive X -> X end end) || _ <- [x, x]], - check_pg_local(ok, [], []), - check_pg_local(pg_local:join(a, P), [P], []), - check_pg_local(pg_local:join(b, P), [P], [P]), - check_pg_local(pg_local:join(a, P), [P, P], [P]), - check_pg_local(pg_local:join(a, Q), [P, P, Q], [P]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(a, P), [P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(b, P), [P, Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - [begin X ! done, - Ref = erlang:monitor(process, X), - receive {'DOWN', Ref, process, X, _Info} -> ok end - end || X <- [P, Q]], - check_pg_local(ok, [], []), - passed. - -check_pg_local(ok, APids, BPids) -> - ok = pg_local:sync(), - [true, true] = [lists:sort(Pids) == lists:sort(pg_local:get_members(Key)) || - {Key, Pids} <- [{a, APids}, {b, BPids}]]. - -test_unfold() -> - {[], test} = rabbit_misc:unfold(fun (_V) -> false end, test), - List = lists:seq(2,20,2), - {List, 0} = rabbit_misc:unfold(fun (0) -> false; - (N) -> {true, N*2, N-1} - end, 10), - passed. - -test_parsing() -> - passed = test_content_properties(), - passed = test_field_values(), - passed. - -test_content_properties() -> - test_content_prop_roundtrip([], <<0, 0>>), - test_content_prop_roundtrip([{bit, true}, {bit, false}, {bit, true}, {bit, false}], - <<16#A0, 0>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {bit, true}, {octet, undefined}, - {bit, true}], - <<16#E8,0,123>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {octet, 123}, {bit, true}], - <<16#F0,0,123,123>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, <<"hi">>}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#F8,0,2,"hi",16#D4,16#31>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, undefined}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#B8,0,16#D4,16#31>>), - test_content_prop_roundtrip([{table, [{<<"a signedint">>, signedint, 12345678}, - {<<"a longstr">>, longstr, <<"yes please">>}, - {<<"a decimal">>, decimal, {123, 12345678}}, - {<<"a timestamp">>, timestamp, 123456789012345}, - {<<"a nested table">>, table, - [{<<"one">>, signedint, 1}, - {<<"two">>, signedint, 2}]}]}], - << - % property-flags - 16#8000:16, - - % property-list: - - % table - 117:32, % table length in bytes - - 11,"a signedint", % name - "I",12345678:32, % type and value - - 9,"a longstr", - "S",10:32,"yes please", - - 9,"a decimal", - "D",123,12345678:32, - - 11,"a timestamp", - "T", 123456789012345:64, - - 14,"a nested table", - "F", - 18:32, - - 3,"one", - "I",1:32, - - 3,"two", - "I",2:32 >>), - case catch rabbit_binary_parser:parse_properties([bit, bit, bit, bit], <<16#A0,0,1>>) of - {'EXIT', content_properties_binary_overflow} -> passed; - V -> exit({got_success_but_expected_failure, V}) - end. - -test_field_values() -> - %% FIXME this does not test inexact numbers (double and float) yet, - %% because they won't pass the equality assertions - test_content_prop_roundtrip( - [{table, [{<<"longstr">>, longstr, <<"Here is a long string">>}, - {<<"signedint">>, signedint, 12345}, - {<<"decimal">>, decimal, {3, 123456}}, - {<<"timestamp">>, timestamp, 109876543209876}, - {<<"table">>, table, [{<<"one">>, signedint, 54321}, - {<<"two">>, longstr, <<"A long string">>}]}, - {<<"byte">>, byte, 255}, - {<<"long">>, long, 1234567890}, - {<<"short">>, short, 655}, - {<<"bool">>, bool, true}, - {<<"binary">>, binary, <<"a binary string">>}, - {<<"void">>, void, undefined}, - {<<"array">>, array, [{signedint, 54321}, - {longstr, <<"A long string">>}]} - - ]}], - << - % property-flags - 16#8000:16, - % table length in bytes - 228:32, - - 7,"longstr", "S", 21:32, "Here is a long string", % = 34 - 9,"signedint", "I", 12345:32/signed, % + 15 = 49 - 7,"decimal", "D", 3, 123456:32, % + 14 = 63 - 9,"timestamp", "T", 109876543209876:64, % + 19 = 82 - 5,"table", "F", 31:32, % length of table % + 11 = 93 - 3,"one", "I", 54321:32, % + 9 = 102 - 3,"two", "S", 13:32, "A long string",% + 22 = 124 - 4,"byte", "b", 255:8, % + 7 = 131 - 4,"long", "l", 1234567890:64, % + 14 = 145 - 5,"short", "s", 655:16, % + 9 = 154 - 4,"bool", "t", 1, % + 7 = 161 - 6,"binary", "x", 15:32, "a binary string", % + 27 = 188 - 4,"void", "V", % + 6 = 194 - 5,"array", "A", 23:32, % + 11 = 205 - "I", 54321:32, % + 5 = 210 - "S", 13:32, "A long string" % + 18 = 228 - >>), - passed. - -%% Test that content frames don't exceed frame-max -test_content_framing(FrameMax, BodyBin) -> - [Header | Frames] = - rabbit_binary_generator:build_simple_content_frames( - 1, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, BodyBin), - rabbit_framing_amqp_0_9_1), - FrameMax, - rabbit_framing_amqp_0_9_1), - %% header is formatted correctly and the size is the total of the - %% fragments - <<_FrameHeader:7/binary, _ClassAndWeight:4/binary, - BodySize:64/unsigned, _Rest/binary>> = list_to_binary(Header), - BodySize = size(BodyBin), - true = lists:all( - fun (ContentFrame) -> - FrameBinary = list_to_binary(ContentFrame), - %% assert - <<_TypeAndChannel:3/binary, - Size:32/unsigned, _Payload:Size/binary, 16#CE>> = - FrameBinary, - size(FrameBinary) =< FrameMax - end, Frames), - passed. - -test_content_framing() -> - %% no content - passed = test_content_framing(4096, <<>>), - %% easily fit in one frame - passed = test_content_framing(4096, <<"Easy">>), - %% exactly one frame (empty frame = 8 bytes) - passed = test_content_framing(11, <<"One">>), - %% more than one frame - passed = test_content_framing(11, <<"More than one frame">>), - passed. - -test_content_transcoding() -> - %% there are no guarantees provided by 'clear' - it's just a hint - ClearDecoded = fun rabbit_binary_parser:clear_decoded_content/1, - ClearEncoded = fun rabbit_binary_generator:clear_encoded_content/1, - EnsureDecoded = - fun (C0) -> - C1 = rabbit_binary_parser:ensure_content_decoded(C0), - true = C1#content.properties =/= none, - C1 - end, - EnsureEncoded = - fun (Protocol) -> - fun (C0) -> - C1 = rabbit_binary_generator:ensure_content_encoded( - C0, Protocol), - true = C1#content.properties_bin =/= none, - C1 - end - end, - %% Beyond the assertions in Ensure*, the only testable guarantee - %% is that the operations should never fail. - %% - %% If we were using quickcheck we'd simply stuff all the above - %% into a generator for sequences of operations. In the absence of - %% quickcheck we pick particularly interesting sequences that: - %% - %% - execute every op twice since they are idempotent - %% - invoke clear_decoded, clear_encoded, decode and transcode - %% with one or both of decoded and encoded content present - [begin - sequence_with_content([Op]), - sequence_with_content([ClearEncoded, Op]), - sequence_with_content([ClearDecoded, Op]) - end || Op <- [ClearDecoded, ClearEncoded, EnsureDecoded, - EnsureEncoded(rabbit_framing_amqp_0_9_1), - EnsureEncoded(rabbit_framing_amqp_0_8)]], - passed. - -sequence_with_content(Sequence) -> - lists:foldl(fun (F, V) -> F(F(V)) end, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, <<>>), - rabbit_framing_amqp_0_9_1), - Sequence). - -test_topic_match(P, R) -> - test_topic_match(P, R, true). - -test_topic_match(P, R, Expected) -> - case rabbit_exchange_type_topic:topic_matches(list_to_binary(P), - list_to_binary(R)) of - Expected -> - passed; - _ -> - {topic_match_failure, P, R} - end. - -test_topic_matching() -> - passed = test_topic_match("#", "test.test"), - passed = test_topic_match("#", ""), - passed = test_topic_match("#.T.R", "T.T.R"), - passed = test_topic_match("#.T.R", "T.R.T.R"), - passed = test_topic_match("#.Y.Z", "X.Y.Z.X.Y.Z"), - passed = test_topic_match("#.test", "test"), - passed = test_topic_match("#.test", "test.test"), - passed = test_topic_match("#.test", "ignored.test"), - passed = test_topic_match("#.test", "more.ignored.test"), - passed = test_topic_match("#.test", "notmatched", false), - passed = test_topic_match("#.z", "one.two.three.four", false), - passed. - -test_app_management() -> - %% starting, stopping, status - ok = control_action(stop_app, []), - ok = control_action(stop_app, []), - ok = control_action(status, []), - ok = control_action(start_app, []), - ok = control_action(start_app, []), - ok = control_action(status, []), - passed. - -test_log_management() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - Suffix = ".1", - - %% prepare basic logs - file:delete([MainLog, Suffix]), - file:delete([SaslLog, Suffix]), - - %% simple logs reopening - ok = control_action(rotate_logs, []), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% simple log rotation - ok = control_action(rotate_logs, [Suffix]), - [true, true] = non_empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% reopening logs with log rotation performed first - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = file:rename(MainLog, [MainLog, Suffix]), - ok = file:rename(SaslLog, [SaslLog, Suffix]), - ok = test_logs_working([MainLog, Suffix], [SaslLog, Suffix]), - ok = control_action(rotate_logs, []), - ok = test_logs_working(MainLog, SaslLog), - - %% log rotation on empty file - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = control_action(rotate_logs, [Suffix]), - [true, true] = empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - - %% original main log file is not writable - ok = make_files_non_writable([MainLog]), - {error, {cannot_rotate_main_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([MainLog], Suffix), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}]), - - %% original sasl log file is not writable - ok = make_files_non_writable([SaslLog]), - {error, {cannot_rotate_sasl_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([SaslLog], Suffix), - ok = add_log_handlers([{rabbit_sasl_report_file_h, SaslLog}]), - - %% logs with suffix are not writable - ok = control_action(rotate_logs, [Suffix]), - ok = make_files_non_writable([[MainLog, Suffix], [SaslLog, Suffix]]), - ok = control_action(rotate_logs, [Suffix]), - ok = test_logs_working(MainLog, SaslLog), - - %% original log files are not writable - ok = make_files_non_writable([MainLog, SaslLog]), - {error, {{cannot_rotate_main_logs, _}, - {cannot_rotate_sasl_logs, _}}} = control_action(rotate_logs, []), - - %% logging directed to tty (handlers were removed in last test) - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = application:set_env(kernel, error_logger, tty), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% rotate logs when logging is turned off - ok = application:set_env(sasl, sasl_error_logger, false), - ok = application:set_env(kernel, error_logger, silent), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% cleanup - ok = application:set_env(sasl, sasl_error_logger, {file, SaslLog}), - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}, - {rabbit_sasl_report_file_h, SaslLog}]), - passed. - -test_log_management_during_startup() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - - %% start application with simple tty logging - ok = control_action(stop_app, []), - ok = application:set_env(kernel, error_logger, tty), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = add_log_handlers([{error_logger_tty_h, []}, - {sasl_report_tty_h, []}]), - ok = control_action(start_app, []), - - %% start application with tty logging and - %% proper handlers not installed - ok = control_action(stop_app, []), - ok = error_logger:tty(false), - ok = delete_log_handlers([sasl_report_tty_h]), - ok = case catch control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_tty_no_handlers_test}); - {error, {cannot_log_to_tty, _, _}} -> ok - end, - - %% fix sasl logging - ok = application:set_env(sasl, sasl_error_logger, - {file, SaslLog}), - - %% start application with logging to non-existing directory - TmpLog = "/tmp/rabbit-tests/test.log", - delete_file(TmpLog), - ok = application:set_env(kernel, error_logger, {file, TmpLog}), - - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = control_action(start_app, []), - - %% start application with logging to directory with no - %% write permissions - TmpDir = "/tmp/rabbit-tests", - ok = set_permissions(TmpDir, 8#00400), - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_no_write_permission_dir_test}); - {error, {cannot_log_to_file, _, _}} -> ok - end, - - %% start application with logging to a subdirectory which - %% parent directory has no write permissions - TmpTestDir = "/tmp/rabbit-tests/no-permission/test/log", - ok = application:set_env(kernel, error_logger, {file, TmpTestDir}), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotatation_parent_dirs_test}); - {error, {cannot_log_to_file, _, - {error, {cannot_create_parent_dirs, _, eacces}}}} -> ok - end, - ok = set_permissions(TmpDir, 8#00700), - ok = set_permissions(TmpLog, 8#00600), - ok = delete_file(TmpLog), - ok = file:del_dir(TmpDir), - - %% start application with standard error_logger_file_h - %% handler not installed - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% start application with standard sasl handler not installed - %% and rabbit main log handler installed correctly - ok = delete_log_handlers([rabbit_sasl_report_file_h]), - ok = control_action(start_app, []), - passed. - -test_option_parser() -> - % command and arguments should just pass through - ok = check_get_options({["mock_command", "arg1", "arg2"], []}, - [], ["mock_command", "arg1", "arg2"]), - - % get flags - ok = check_get_options( - {["mock_command", "arg1"], [{"-f", true}, {"-f2", false}]}, - [{flag, "-f"}, {flag, "-f2"}], ["mock_command", "arg1", "-f"]), - - % get options - ok = check_get_options( - {["mock_command"], [{"-foo", "bar"}, {"-baz", "notbaz"}]}, - [{option, "-foo", "notfoo"}, {option, "-baz", "notbaz"}], - ["mock_command", "-foo", "bar"]), - - % shuffled and interleaved arguments and options - ok = check_get_options( - {["a1", "a2", "a3"], [{"-o1", "hello"}, {"-o2", "noto2"}, {"-f", true}]}, - [{option, "-o1", "noto1"}, {flag, "-f"}, {option, "-o2", "noto2"}], - ["-f", "a1", "-o1", "hello", "a2", "a3"]), - - passed. - -test_cluster_management() -> - - %% 'cluster' and 'reset' should only work if the app is stopped - {error, _} = control_action(cluster, []), - {error, _} = control_action(reset, []), - {error, _} = control_action(force_reset, []), - - ok = control_action(stop_app, []), - - %% various ways of creating a standalone node - NodeS = atom_to_list(node()), - ClusteringSequence = [[], - [NodeS], - ["invalid@invalid", NodeS], - [NodeS, "invalid@invalid"]], - - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - - %% convert a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% join a non-existing cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - SecondaryNode = rabbit_misc:makenode("hare"), - case net_adm:ping(SecondaryNode) of - pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", - [SecondaryNode]) - end, - - ok = control_action(start_app, []), - passed. - -test_cluster_management2(SecondaryNode) -> - NodeS = atom_to_list(node()), - SecondaryNodeS = atom_to_list(SecondaryNode), - - %% make a disk node - ok = control_action(reset, []), - ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - - %% join cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, [SecondaryNodeS, "invalid1@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% change cluster config while remaining in same cluster - ok = control_action(force_cluster, ["invalid2@invalid", SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join non-existing cluster as a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join empty cluster as a ram node - ok = control_action(cluster, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% turn ram node into disk node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% convert a disk node into a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% turn a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% NB: this will log an inconsistent_database error, which is harmless - %% Turning cover on / off is OK even if we're not in general using cover, - %% it just turns the engine on / off, doesn't actually log anything. - cover:stop([SecondaryNode]), - true = disconnect_node(SecondaryNode), - pong = net_adm:ping(SecondaryNode), - cover:start([SecondaryNode]), - - %% leaving a cluster as a ram node - ok = control_action(reset, []), - %% ...and as a disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(reset, []), - - %% attempt to leave cluster when no other node is alive - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, SecondaryNode, [], []), - ok = control_action(stop_app, []), - {error, {no_running_cluster_nodes, _, _}} = - control_action(reset, []), - - %% leave system clustered, with the secondary node as a ram node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(force_reset, SecondaryNode, [], []), - ok = control_action(cluster, SecondaryNode, [NodeS], []), - ok = control_action(start_app, SecondaryNode, [], []), - - passed. - -test_user_management() -> - - %% lots if stuff that should fail - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(change_password, ["foo", "baz"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - {error, {no_such_user, _}} = - control_action(set_permissions, ["foo", ".*", ".*", ".*"]), - {error, {no_such_user, _}} = - control_action(clear_permissions, ["foo"]), - {error, {no_such_user, _}} = - control_action(list_user_permissions, ["foo"]), - {error, {no_such_vhost, _}} = - control_action(list_permissions, [], [{"-p", "/testhost"}]), - {error, {invalid_regexp, _, _}} = - control_action(set_permissions, ["guest", "+foo", ".*", ".*"]), - - %% user creation - ok = control_action(add_user, ["foo", "bar"]), - {error, {user_already_exists, _}} = - control_action(add_user, ["foo", "bar"]), - ok = control_action(change_password, ["foo", "baz"]), - ok = control_action(set_admin, ["foo"]), - ok = control_action(clear_admin, ["foo"]), - ok = control_action(list_users, []), - - %% vhost creation - ok = control_action(add_vhost, ["/testhost"]), - {error, {vhost_already_exists, _}} = - control_action(add_vhost, ["/testhost"]), - ok = control_action(list_vhosts, []), - - %% user/vhost mapping - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_user_permissions, ["foo"]), - - %% user/vhost unmapping - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - - %% vhost deletion - ok = control_action(delete_vhost, ["/testhost"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - - %% deleting a populated vhost - ok = control_action(add_vhost, ["/testhost"]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(delete_vhost, ["/testhost"]), - - %% user deletion - ok = control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - - passed. - -test_server_status() -> - %% create a few things so there is some useful information to list - Writer = spawn(fun () -> receive shutdown -> ok end end), - {ok, Ch} = rabbit_channel:start_link(1, self(), Writer, - <<"user">>, <<"/">>, self(), - fun (_) -> {ok, self()} end), - [Q, Q2] = [Queue || Name <- [<<"foo">>, <<"bar">>], - {new, Queue = #amqqueue{}} <- - [rabbit_amqqueue:declare( - rabbit_misc:r(<<"/">>, queue, Name), - false, false, [], none)]], - - ok = rabbit_amqqueue:basic_consume(Q, true, Ch, undefined, - <<"ctag">>, true, undefined), - - %% list queues - ok = info_action(list_queues, rabbit_amqqueue:info_keys(), true), - - %% list exchanges - ok = info_action(list_exchanges, rabbit_exchange:info_keys(), true), - - %% list bindings - ok = info_action(list_bindings, rabbit_binding:info_keys(), true), - %% misc binding listing APIs - [_|_] = rabbit_binding:list_for_source( - rabbit_misc:r(<<"/">>, exchange, <<"">>)), - [_] = rabbit_binding:list_for_destination( - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - [_] = rabbit_binding:list_for_source_and_destination( - rabbit_misc:r(<<"/">>, exchange, <<"">>), - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - - %% list connections - [#listener{host = H, port = P} | _] = - [L || L = #listener{node = N} <- rabbit_networking:active_listeners(), - N =:= node()], - - {ok, _C} = gen_tcp:connect(H, P, []), - timer:sleep(100), - ok = info_action(list_connections, - rabbit_networking:connection_info_keys(), false), - %% close_connection - [ConnPid] = rabbit_networking:connections(), - ok = control_action(close_connection, [rabbit_misc:pid_to_string(ConnPid), - "go away"]), - - %% list channels - ok = info_action(list_channels, rabbit_channel:info_keys(), false), - - %% list consumers - ok = control_action(list_consumers, []), - - %% cleanup - [{ok, _} = rabbit_amqqueue:delete(QR, false, false) || QR <- [Q, Q2]], - - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_spawn(Receiver) -> - Me = self(), - Writer = spawn(fun () -> Receiver(Me) end), - {ok, Ch} = rabbit_channel:start_link(1, Me, Writer, - <<"guest">>, <<"/">>, self(), - fun (_) -> {ok, self()} end), - ok = rabbit_channel:do(Ch, #'channel.open'{}), - receive #'channel.open_ok'{} -> ok - after 1000 -> throw(failed_to_receive_channel_open_ok) - end, - {Writer, Ch}. - -test_statistics_receiver(Pid) -> - receive - shutdown -> - ok; - {send_command, Method} -> - Pid ! Method, - test_statistics_receiver(Pid) - end. - -test_statistics_event_receiver(Pid) -> - receive - Foo -> - Pid ! Foo, - test_statistics_event_receiver(Pid) - end. - -test_statistics_receive_event(Ch, Matcher) -> - rabbit_channel:flush(Ch), - rabbit_channel:emit_stats(Ch), - test_statistics_receive_event1(Ch, Matcher). - -test_statistics_receive_event1(Ch, Matcher) -> - receive #event{type = channel_stats, props = Props} -> - case Matcher(Props) of - true -> Props; - _ -> test_statistics_receive_event1(Ch, Matcher) - end - after 1000 -> throw(failed_to_receive_event) - end. - -test_statistics() -> - application:set_env(rabbit, collect_statistics, fine), - - %% ATM this just tests the queue / exchange stats in channels. That's - %% by far the most complex code though. - - %% Set up a channel and queue - {_Writer, Ch} = test_spawn(fun test_statistics_receiver/1), - rabbit_channel:do(Ch, #'queue.declare'{}), - QName = receive #'queue.declare_ok'{queue = Q0} -> - Q0 - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - {ok, Q} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName)), - QPid = Q#amqqueue.pid, - X = rabbit_misc:r(<<"/">>, exchange, <<"">>), - - rabbit_tests_event_receiver:start(self()), - - %% Check stats empty - Event = test_statistics_receive_event(Ch, fun (_) -> true end), - [] = proplists:get_value(channel_queue_stats, Event), - [] = proplists:get_value(channel_exchange_stats, Event), - [] = proplists:get_value(channel_queue_exchange_stats, Event), - - %% Publish and get a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"">>, - routing_key = QName}, - rabbit_basic:build_content(#'P_basic'{}, <<"">>)), - rabbit_channel:do(Ch, #'basic.get'{queue = QName}), - - %% Check the stats reflect that - Event2 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) > 0 - end), - [{QPid,[{get,1}]}] = proplists:get_value(channel_queue_stats, Event2), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event2), - [{{QPid,X},[{publish,1}]}] = - proplists:get_value(channel_queue_exchange_stats, Event2), - - %% Check the stats remove stuff on queue deletion - rabbit_channel:do(Ch, #'queue.delete'{queue = QName}), - Event3 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) == 0 - end), - - [] = proplists:get_value(channel_queue_stats, Event3), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event3), - [] = proplists:get_value(channel_queue_exchange_stats, Event3), - - rabbit_channel:shutdown(Ch), - rabbit_tests_event_receiver:stop(), - passed. - -test_delegates_async(SecondaryNode) -> - Self = self(), - Sender = fun (Pid) -> Pid ! {invoked, Self} end, - - Responder = make_responder(fun ({invoked, Pid}) -> Pid ! response end), - - ok = delegate:invoke_no_result(spawn(Responder), Sender), - ok = delegate:invoke_no_result(spawn(SecondaryNode, Responder), Sender), - await_response(2), - - LocalPids = spawn_responders(node(), Responder, 10), - RemotePids = spawn_responders(SecondaryNode, Responder, 10), - ok = delegate:invoke_no_result(LocalPids ++ RemotePids, Sender), - await_response(20), - - passed. - -make_responder(FMsg) -> make_responder(FMsg, timeout). -make_responder(FMsg, Throw) -> - fun () -> - receive Msg -> FMsg(Msg) - after 1000 -> throw(Throw) - end - end. - -spawn_responders(Node, Responder, Count) -> - [spawn(Node, Responder) || _ <- lists:seq(1, Count)]. - -await_response(0) -> - ok; -await_response(Count) -> - receive - response -> ok, - await_response(Count - 1) - after 1000 -> - io:format("Async reply not received~n"), - throw(timeout) - end. - -must_exit(Fun) -> - try - Fun(), - throw(exit_not_thrown) - catch - exit:_ -> ok - end. - -test_delegates_sync(SecondaryNode) -> - Sender = fun (Pid) -> gen_server:call(Pid, invoked) end, - BadSender = fun (_Pid) -> exit(exception) end, - - Responder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end), - - BadResponder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end, bad_responder_died), - - response = delegate:invoke(spawn(Responder), Sender), - response = delegate:invoke(spawn(SecondaryNode, Responder), Sender), - - must_exit(fun () -> delegate:invoke(spawn(BadResponder), BadSender) end), - must_exit(fun () -> - delegate:invoke(spawn(SecondaryNode, BadResponder), BadSender) end), - - LocalGoodPids = spawn_responders(node(), Responder, 2), - RemoteGoodPids = spawn_responders(SecondaryNode, Responder, 2), - LocalBadPids = spawn_responders(node(), BadResponder, 2), - RemoteBadPids = spawn_responders(SecondaryNode, BadResponder, 2), - - {GoodRes, []} = delegate:invoke(LocalGoodPids ++ RemoteGoodPids, Sender), - true = lists:all(fun ({_, response}) -> true end, GoodRes), - GoodResPids = [Pid || {Pid, _} <- GoodRes], - - Good = ordsets:from_list(LocalGoodPids ++ RemoteGoodPids), - Good = ordsets:from_list(GoodResPids), - - {[], BadRes} = delegate:invoke(LocalBadPids ++ RemoteBadPids, BadSender), - true = lists:all(fun ({_, {exit, exception, _}}) -> true end, BadRes), - BadResPids = [Pid || {Pid, _} <- BadRes], - - Bad = ordsets:from_list(LocalBadPids ++ RemoteBadPids), - Bad = ordsets:from_list(BadResPids), - - passed. - -%--------------------------------------------------------------------- - -control_action(Command, Args) -> - control_action(Command, node(), Args, default_options()). - -control_action(Command, Args, NewOpts) -> - control_action(Command, node(), Args, - expand_options(default_options(), NewOpts)). - -control_action(Command, Node, Args, Opts) -> - case catch rabbit_control:action( - Command, Node, Args, Opts, - fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end) of - ok -> - io:format("done.~n"), - ok; - Other -> - io:format("failed.~n"), - Other - end. - -info_action(Command, Args, CheckVHost) -> - ok = control_action(Command, []), - if CheckVHost -> ok = control_action(Command, []); - true -> ok - end, - ok = control_action(Command, lists:map(fun atom_to_list/1, Args)), - {bad_argument, dummy} = control_action(Command, ["dummy"]), - ok. - -default_options() -> [{"-p", "/"}, {"-q", "false"}]. - -expand_options(As, Bs) -> - lists:foldl(fun({K, _}=A, R) -> - case proplists:is_defined(K, R) of - true -> R; - false -> [A | R] - end - end, Bs, As). - -check_get_options({ExpArgs, ExpOpts}, Defs, Args) -> - {ExpArgs, ResOpts} = rabbit_misc:get_options(Defs, Args), - true = lists:sort(ExpOpts) == lists:sort(ResOpts), % don't care about the order - ok. - -empty_files(Files) -> - [case file:read_file_info(File) of - {ok, FInfo} -> FInfo#file_info.size == 0; - Error -> Error - end || File <- Files]. - -non_empty_files(Files) -> - [case EmptyFile of - {error, Reason} -> {error, Reason}; - _ -> not(EmptyFile) - end || EmptyFile <- empty_files(Files)]. - -test_logs_working(MainLogFile, SaslLogFile) -> - ok = rabbit_log:error("foo bar"), - ok = error_logger:error_report(crash_report, [foo, bar]), - %% give the error loggers some time to catch up - timer:sleep(50), - [true, true] = non_empty_files([MainLogFile, SaslLogFile]), - ok. - -set_permissions(Path, Mode) -> - case file:read_file_info(Path) of - {ok, FInfo} -> file:write_file_info( - Path, - FInfo#file_info{mode=Mode}); - Error -> Error - end. - -clean_logs(Files, Suffix) -> - [begin - ok = delete_file(File), - ok = delete_file([File, Suffix]) - end || File <- Files], - ok. - -delete_file(File) -> - case file:delete(File) of - ok -> ok; - {error, enoent} -> ok; - Error -> Error - end. - -make_files_non_writable(Files) -> - [ok = file:write_file_info(File, #file_info{mode=0}) || - File <- Files], - ok. - -add_log_handlers(Handlers) -> - [ok = error_logger:add_report_handler(Handler, Args) || - {Handler, Args} <- Handlers], - ok. - -delete_log_handlers(Handlers) -> - [[] = error_logger:delete_report_handler(Handler) || - Handler <- Handlers], - ok. - -test_supervisor_delayed_restart() -> - test_sup:test_supervisor_delayed_restart(). - -test_file_handle_cache() -> - %% test copying when there is just one spare handle - Limit = file_handle_cache:get_limit(), - ok = file_handle_cache:set_limit(5), %% 1 or 2 sockets, 2 msg_stores - TmpDir = filename:join(rabbit_mnesia:dir(), "tmp"), - ok = filelib:ensure_dir(filename:join(TmpDir, "nothing")), - Pid = spawn(fun () -> {ok, Hdl} = file_handle_cache:open( - filename:join(TmpDir, "file3"), - [write], []), - receive close -> ok end, - file_handle_cache:delete(Hdl) - end), - Src = filename:join(TmpDir, "file1"), - Dst = filename:join(TmpDir, "file2"), - Content = <<"foo">>, - ok = file:write_file(Src, Content), - {ok, SrcHdl} = file_handle_cache:open(Src, [read], []), - {ok, DstHdl} = file_handle_cache:open(Dst, [write], []), - Size = size(Content), - {ok, Size} = file_handle_cache:copy(SrcHdl, DstHdl, Size), - ok = file_handle_cache:delete(SrcHdl), - file_handle_cache:delete(DstHdl), - Pid ! close, - ok = file_handle_cache:set_limit(Limit), - passed. - -test_backing_queue() -> - case application:get_env(rabbit, backing_queue_module) of - {ok, rabbit_variable_queue} -> - {ok, FileSizeLimit} = - application:get_env(rabbit, msg_store_file_size_limit), - application:set_env(rabbit, msg_store_file_size_limit, 512, - infinity), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - application:set_env(rabbit, queue_index_max_journal_entries, 128, - infinity), - passed = test_msg_store(), - application:set_env(rabbit, msg_store_file_size_limit, - FileSizeLimit, infinity), - passed = test_queue_index(), - passed = test_queue_index_props(), - passed = test_variable_queue(), - passed = test_queue_recover(), - application:set_env(rabbit, queue_index_max_journal_entries, - MaxJournal, infinity), - passed; - _ -> - passed - end. - -restart_msg_store_empty() -> - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - undefined, {fun (ok) -> finished end, ok}). - -guid_bin(X) -> - erlang:md5(term_to_binary(X)). - -msg_store_contains(Atom, Guids, MSCState) -> - Atom = lists:foldl( - fun (Guid, Atom1) when Atom1 =:= Atom -> - rabbit_msg_store:contains(Guid, MSCState) end, - Atom, Guids). - -msg_store_sync(Guids, MSCState) -> - Ref = make_ref(), - Self = self(), - ok = rabbit_msg_store:sync(Guids, fun () -> Self ! {sync, Ref} end, - MSCState), - receive - {sync, Ref} -> ok - after - 10000 -> - io:format("Sync from msg_store missing for guids ~p~n", [Guids]), - throw(timeout) - end. - -msg_store_read(Guids, MSCState) -> - lists:foldl(fun (Guid, MSCStateM) -> - {{ok, Guid}, MSCStateN} = rabbit_msg_store:read( - Guid, MSCStateM), - MSCStateN - end, MSCState, Guids). - -msg_store_write(Guids, MSCState) -> - ok = lists:foldl( - fun (Guid, ok) -> rabbit_msg_store:write(Guid, Guid, MSCState) end, - ok, Guids). - -msg_store_remove(Guids, MSCState) -> - rabbit_msg_store:remove(Guids, MSCState). - -msg_store_remove(MsgStore, Ref, Guids) -> - with_msg_store_client(MsgStore, Ref, - fun (MSCStateM) -> - ok = msg_store_remove(Guids, MSCStateM), - MSCStateM - end). - -with_msg_store_client(MsgStore, Ref, Fun) -> - rabbit_msg_store:client_terminate( - Fun(rabbit_msg_store:client_init(MsgStore, Ref))). - -foreach_with_msg_store_client(MsgStore, Ref, Fun, L) -> - rabbit_msg_store:client_terminate( - lists:foldl(fun (Guid, MSCState) -> Fun(Guid, MSCState) end, - rabbit_msg_store:client_init(MsgStore, Ref), L)). - -test_msg_store() -> - restart_msg_store_empty(), - Self = self(), - Guids = [guid_bin(M) || M <- lists:seq(1,100)], - {Guids1stHalf, Guids2ndHalf} = lists:split(50, Guids), - Ref = rabbit_guid:guid(), - MSCState = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs we're about to publish - false = msg_store_contains(false, Guids, MSCState), - %% publish the first half - ok = msg_store_write(Guids1stHalf, MSCState), - %% sync on the first half - ok = msg_store_sync(Guids1stHalf, MSCState), - %% publish the second half - ok = msg_store_write(Guids2ndHalf, MSCState), - %% sync on the first half again - the msg_store will be dirty, but - %% we won't need the fsync - ok = msg_store_sync(Guids1stHalf, MSCState), - %% check they're all in there - true = msg_store_contains(true, Guids, MSCState), - %% publish the latter half twice so we hit the caching and ref count code - ok = msg_store_write(Guids2ndHalf, MSCState), - %% check they're still all in there - true = msg_store_contains(true, Guids, MSCState), - %% sync on the 2nd half, but do lots of individual syncs to try - %% and cause coalescing to happen - ok = lists:foldl( - fun (Guid, ok) -> rabbit_msg_store:sync( - [Guid], fun () -> Self ! {sync, Guid} end, - MSCState) - end, ok, Guids2ndHalf), - lists:foldl( - fun(Guid, ok) -> - receive - {sync, Guid} -> ok - after - 10000 -> - io:format("Sync from msg_store missing (guid: ~p)~n", - [Guid]), - throw(timeout) - end - end, ok, Guids2ndHalf), - %% it's very likely we're not dirty here, so the 1st half sync - %% should hit a different code path - ok = msg_store_sync(Guids1stHalf, MSCState), - %% read them all - MSCState1 = msg_store_read(Guids, MSCState), - %% read them all again - this will hit the cache, not disk - MSCState2 = msg_store_read(Guids, MSCState1), - %% remove them all - ok = rabbit_msg_store:remove(Guids, MSCState2), - %% check first half doesn't exist - false = msg_store_contains(false, Guids1stHalf, MSCState2), - %% check second half does exist - true = msg_store_contains(true, Guids2ndHalf, MSCState2), - %% read the second half again - MSCState3 = msg_store_read(Guids2ndHalf, MSCState2), - %% release the second half, just for fun (aka code coverage) - ok = rabbit_msg_store:release(Guids2ndHalf, MSCState3), - %% read the second half again, just for fun (aka code coverage) - MSCState4 = msg_store_read(Guids2ndHalf, MSCState3), - ok = rabbit_msg_store:client_terminate(MSCState4), - %% stop and restart, preserving every other msg in 2nd half - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - [], {fun ([]) -> finished; - ([Guid|GuidsTail]) - when length(GuidsTail) rem 2 == 0 -> - {Guid, 1, GuidsTail}; - ([Guid|GuidsTail]) -> - {Guid, 0, GuidsTail} - end, Guids2ndHalf}), - MSCState5 = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we have the right msgs left - lists:foldl( - fun (Guid, Bool) -> - not(Bool = rabbit_msg_store:contains(Guid, MSCState5)) - end, false, Guids2ndHalf), - ok = rabbit_msg_store:client_terminate(MSCState5), - %% restart empty - restart_msg_store_empty(), - MSCState6 = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs - false = msg_store_contains(false, Guids, MSCState6), - %% publish the first half again - ok = msg_store_write(Guids1stHalf, MSCState6), - %% this should force some sort of sync internally otherwise misread - ok = rabbit_msg_store:client_terminate( - msg_store_read(Guids1stHalf, MSCState6)), - MSCState7 = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, Ref), - ok = rabbit_msg_store:remove(Guids1stHalf, MSCState7), - ok = rabbit_msg_store:client_terminate(MSCState7), - %% restart empty - restart_msg_store_empty(), %% now safe to reuse guids - %% push a lot of msgs in... at least 100 files worth - {ok, FileSize} = application:get_env(rabbit, msg_store_file_size_limit), - PayloadSizeBits = 65536, - BigCount = trunc(100 * FileSize / (PayloadSizeBits div 8)), - GuidsBig = [guid_bin(X) || X <- lists:seq(1, BigCount)], - Payload = << 0:PayloadSizeBits >>, - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - [ok = rabbit_msg_store:write(Guid, Payload, MSCStateM) || - Guid <- GuidsBig], - MSCStateM - end), - %% now read them to ensure we hit the fast client-side reading - ok = foreach_with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (Guid, MSCStateM) -> - {{ok, Payload}, MSCStateN} = rabbit_msg_store:read( - Guid, MSCStateM), - MSCStateN - end, GuidsBig), - %% .., then 3s by 1... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [guid_bin(X) || X <- lists:seq(BigCount, 1, -3)]), - %% .., then remove 3s by 2, from the young end first. This hits - %% GC (under 50% good data left, but no empty files. Must GC). - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [guid_bin(X) || X <- lists:seq(BigCount-1, 1, -3)]), - %% .., then remove 3s by 3, from the young end first. This hits - %% GC... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [guid_bin(X) || X <- lists:seq(BigCount-2, 1, -3)]), - %% ensure empty - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - false = msg_store_contains(false, GuidsBig, MSCStateM), - MSCStateM - end), - %% restart empty - restart_msg_store_empty(), - passed. - -queue_name(Name) -> - rabbit_misc:r(<<"/">>, queue, Name). - -test_queue() -> - queue_name(<<"test">>). - -init_test_queue() -> - TestQueue = test_queue(), - Terms = rabbit_queue_index:shutdown_terms(TestQueue), - PRef = proplists:get_value(persistent_ref, Terms, rabbit_guid:guid()), - PersistentClient = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, - PRef), - Res = rabbit_queue_index:recover( - TestQueue, Terms, false, - fun (Guid) -> - rabbit_msg_store:contains(Guid, PersistentClient) - end), - ok = rabbit_msg_store:client_delete_and_terminate(PersistentClient), - Res. - -restart_test_queue(Qi) -> - _ = rabbit_queue_index:terminate([], Qi), - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([test_queue()]), - init_test_queue(). - -empty_test_queue() -> - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - {0, Qi} = init_test_queue(), - _ = rabbit_queue_index:delete_and_terminate(Qi), - ok. - -with_empty_test_queue(Fun) -> - ok = empty_test_queue(), - {0, Qi} = init_test_queue(), - rabbit_queue_index:delete_and_terminate(Fun(Qi)). - -queue_index_publish(SeqIds, Persistent, Qi) -> - Ref = rabbit_guid:guid(), - MsgStore = case Persistent of - true -> ?PERSISTENT_MSG_STORE; - false -> ?TRANSIENT_MSG_STORE - end, - MSCState = rabbit_msg_store:client_init(MsgStore, Ref), - {A, B} = - lists:foldl( - fun (SeqId, {QiN, SeqIdsGuidsAcc}) -> - Guid = rabbit_guid:guid(), - QiM = rabbit_queue_index:publish( - Guid, SeqId, #message_properties{}, Persistent, QiN), - ok = rabbit_msg_store:write(Guid, Guid, MSCState), - {QiM, [{SeqId, Guid} | SeqIdsGuidsAcc]} - end, {Qi, []}, SeqIds), - ok = rabbit_msg_store:client_delete_and_terminate(MSCState), - {A, B}. - -verify_read_with_published(_Delivered, _Persistent, [], _) -> - ok; -verify_read_with_published(Delivered, Persistent, - [{Guid, SeqId, _Props, Persistent, Delivered}|Read], - [{SeqId, Guid}|Published]) -> - verify_read_with_published(Delivered, Persistent, Read, Published); -verify_read_with_published(_Delivered, _Persistent, _Read, _Published) -> - ko. - -test_queue_index_props() -> - with_empty_test_queue( - fun(Qi0) -> - Guid = rabbit_guid:guid(), - Props = #message_properties{expiry=12345}, - Qi1 = rabbit_queue_index:publish(Guid, 1, Props, true, Qi0), - {[{Guid, 1, Props, _, _}], Qi2} = - rabbit_queue_index:read(1, 2, Qi1), - Qi2 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -test_queue_index() -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - TwoSegs = SegmentSize + SegmentSize, - MostOfASegment = trunc(SegmentSize*0.75), - SeqIdsA = lists:seq(0, MostOfASegment-1), - SeqIdsB = lists:seq(MostOfASegment, 2*MostOfASegment), - SeqIdsC = lists:seq(0, trunc(SegmentSize/2)), - SeqIdsD = lists:seq(0, SegmentSize*4), - - with_empty_test_queue( - fun (Qi0) -> - {0, 0, Qi1} = rabbit_queue_index:bounds(Qi0), - {Qi2, SeqIdsGuidsA} = queue_index_publish(SeqIdsA, false, Qi1), - {0, SegmentSize, Qi3} = rabbit_queue_index:bounds(Qi2), - {ReadA, Qi4} = rabbit_queue_index:read(0, SegmentSize, Qi3), - ok = verify_read_with_published(false, false, ReadA, - lists:reverse(SeqIdsGuidsA)), - %% should get length back as 0, as all the msgs were transient - {0, Qi6} = restart_test_queue(Qi4), - {0, 0, Qi7} = rabbit_queue_index:bounds(Qi6), - {Qi8, SeqIdsGuidsB} = queue_index_publish(SeqIdsB, true, Qi7), - {0, TwoSegs, Qi9} = rabbit_queue_index:bounds(Qi8), - {ReadB, Qi10} = rabbit_queue_index:read(0, SegmentSize, Qi9), - ok = verify_read_with_published(false, true, ReadB, - lists:reverse(SeqIdsGuidsB)), - %% should get length back as MostOfASegment - LenB = length(SeqIdsB), - {LenB, Qi12} = restart_test_queue(Qi10), - {0, TwoSegs, Qi13} = rabbit_queue_index:bounds(Qi12), - Qi14 = rabbit_queue_index:deliver(SeqIdsB, Qi13), - {ReadC, Qi15} = rabbit_queue_index:read(0, SegmentSize, Qi14), - ok = verify_read_with_published(true, true, ReadC, - lists:reverse(SeqIdsGuidsB)), - Qi16 = rabbit_queue_index:ack(SeqIdsB, Qi15), - Qi17 = rabbit_queue_index:flush(Qi16), - %% Everything will have gone now because #pubs == #acks - {0, 0, Qi18} = rabbit_queue_index:bounds(Qi17), - %% should get length back as 0 because all persistent - %% msgs have been acked - {0, Qi19} = restart_test_queue(Qi18), - Qi19 - end), - - %% These next bits are just to hit the auto deletion of segment files. - %% First, partials: - %% a) partial pub+del+ack, then move to new segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsC} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsC, Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, _SeqIdsGuidsC1} = queue_index_publish([SegmentSize], - false, Qi4), - Qi5 - end), - - %% b) partial pub+del, then move to new segment, then ack all in old segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsC2} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - {Qi3, _SeqIdsGuidsC3} = queue_index_publish([SegmentSize], - false, Qi2), - Qi4 = rabbit_queue_index:ack(SeqIdsC, Qi3), - rabbit_queue_index:flush(Qi4) - end), - - %% c) just fill up several segments of all pubs, then +dels, then +acks - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsD} = queue_index_publish(SeqIdsD, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsD, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsD, Qi2), - rabbit_queue_index:flush(Qi3) - end), - - %% d) get messages in all states to a segment, then flush, then do - %% the same again, don't flush and read. This will hit all - %% possibilities in combining the segment with the journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, [Seven,Five,Four|_]} = queue_index_publish([0,1,2,4,5,7], - false, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, [Eight,Six|_]} = queue_index_publish([3,6,8], false, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {[], Qi8} = rabbit_queue_index:read(0, 4, Qi7), - {ReadD, Qi9} = rabbit_queue_index:read(4, 7, Qi8), - ok = verify_read_with_published(true, false, ReadD, - [Four, Five, Six]), - {ReadE, Qi10} = rabbit_queue_index:read(7, 9, Qi9), - ok = verify_read_with_published(false, false, ReadE, - [Seven, Eight]), - Qi10 - end), - - %% e) as for (d), but use terminate instead of read, which will - %% exercise journal_minus_segment, not segment_plus_journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsE} = queue_index_publish([0,1,2,4,5,7], - true, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - {5, Qi4} = restart_test_queue(Qi3), - {Qi5, _SeqIdsGuidsF} = queue_index_publish([3,6,8], true, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {5, Qi8} = restart_test_queue(Qi7), - Qi8 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -variable_queue_publish(IsPersistent, Count, VQ) -> - lists:foldl( - fun (_N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = case IsPersistent of - true -> 2; - false -> 1 - end}, <<>>), - #message_properties{}, VQN) - end, VQ, lists:seq(1, Count)). - -variable_queue_fetch(Count, IsPersistent, IsDelivered, Len, VQ) -> - lists:foldl(fun (N, {VQN, AckTagsAcc}) -> - Rem = Len - N, - {{#basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTagN, Rem}, VQM} = - rabbit_variable_queue:fetch(true, VQN), - {VQM, [AckTagN | AckTagsAcc]} - end, {VQ, []}, lists:seq(1, Count)). - -assert_prop(List, Prop, Value) -> - Value = proplists:get_value(Prop, List). - -assert_props(List, PropVals) -> - [assert_prop(List, Prop, Value) || {Prop, Value} <- PropVals]. - -with_fresh_variable_queue(Fun) -> - ok = empty_test_queue(), - VQ = rabbit_variable_queue:init(test_queue(), true, false), - S0 = rabbit_variable_queue:status(VQ), - assert_props(S0, [{q1, 0}, {q2, 0}, - {delta, {delta, undefined, 0, undefined}}, - {q3, 0}, {q4, 0}, - {len, 0}]), - _ = rabbit_variable_queue:delete_and_terminate(Fun(VQ)), - passed. - -test_variable_queue() -> - [passed = with_fresh_variable_queue(F) || - F <- [fun test_variable_queue_dynamic_duration_change/1, - fun test_variable_queue_partial_segments_delta_thing/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere1/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere2/1, - fun test_dropwhile/1]], - passed. - -test_dropwhile(VQ0) -> - Count = 10, - - %% add messages with sequential expiry - VQ1 = lists:foldl( - fun (N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{}, <<>>), - #message_properties{expiry = N}, VQN) - end, VQ0, lists:seq(1, Count)), - - %% drop the first 5 messages - VQ2 = rabbit_variable_queue:dropwhile( - fun(#message_properties { expiry = Expiry }) -> - Expiry =< 5 - end, VQ1), - - %% fetch five now - VQ3 = lists:foldl(fun (_N, VQN) -> - {{#basic_message{}, _, _, _}, VQM} = - rabbit_variable_queue:fetch(false, VQN), - VQM - end, VQ2, lists:seq(6, Count)), - - %% should be empty now - {empty, VQ4} = rabbit_variable_queue:fetch(false, VQ3), - - VQ4. - -test_variable_queue_dynamic_duration_change(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - - %% start by sending in a couple of segments worth - Len = 2*SegmentSize, - VQ1 = variable_queue_publish(false, Len, VQ0), - - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - {Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - VQ7 = lists:foldl( - fun (Duration1, VQ4) -> - {_Duration, VQ5} = rabbit_variable_queue:ram_duration(VQ4), - io:format("~p:~n~p~n", - [Duration1, rabbit_variable_queue:status(VQ5)]), - VQ6 = rabbit_variable_queue:set_ram_duration_target( - Duration1, VQ5), - publish_fetch_and_ack(Churn, Len, VQ6) - end, VQ3, [Duration / 4, 0, Duration / 4, infinity]), - - %% drain - {VQ8, AckTags} = variable_queue_fetch(Len, false, false, Len, VQ7), - VQ9 = rabbit_variable_queue:ack(AckTags, VQ8), - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - - VQ10. - -publish_fetch_and_ack(0, _Len, VQ0) -> - VQ0; -publish_fetch_and_ack(N, Len, VQ0) -> - VQ1 = variable_queue_publish(false, 1, VQ0), - {{_Msg, false, AckTag, Len}, VQ2} = rabbit_variable_queue:fetch(true, VQ1), - publish_fetch_and_ack(N-1, Len, rabbit_variable_queue:ack([AckTag], VQ2)). - -test_variable_queue_partial_segments_delta_thing(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - HalfSegment = SegmentSize div 2, - OneAndAHalfSegment = SegmentSize + HalfSegment, - VQ1 = variable_queue_publish(true, OneAndAHalfSegment, VQ0), - {_Duration, VQ2} = rabbit_variable_queue:ram_duration(VQ1), - VQ3 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ2), - %% one segment in q3 as betas, and half a segment in delta - [{delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment}]), - VQ4 = rabbit_variable_queue:set_ram_duration_target(infinity, VQ3), - VQ5 = check_variable_queue_status( - variable_queue_publish(true, 1, VQ4), - %% one alpha, but it's in the same segment as the deltas - [{q1, 1}, - {delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment + 1}]), - {VQ6, AckTags} = variable_queue_fetch(SegmentSize, true, false, - SegmentSize + HalfSegment + 1, VQ5), - VQ7 = check_variable_queue_status( - VQ6, - %% the half segment should now be in q3 as betas - [{q1, 1}, - {delta, {delta, undefined, 0, undefined}}, - {q3, HalfSegment}, - {len, HalfSegment + 1}]), - {VQ8, AckTags1} = variable_queue_fetch(HalfSegment + 1, true, false, - HalfSegment + 1, VQ7), - VQ9 = rabbit_variable_queue:ack(AckTags ++ AckTags1, VQ8), - %% should be empty now - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - VQ10. - -check_variable_queue_status(VQ0, Props) -> - VQ1 = variable_queue_wait_for_shuffling_end(VQ0), - S = rabbit_variable_queue:status(VQ1), - io:format("~p~n", [S]), - assert_props(S, Props), - VQ1. - -variable_queue_wait_for_shuffling_end(VQ) -> - case rabbit_variable_queue:needs_idle_timeout(VQ) of - true -> variable_queue_wait_for_shuffling_end( - rabbit_variable_queue:idle_timeout(VQ)); - false -> VQ - end. - -test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - VQ1 = variable_queue_publish(true, Count, VQ0), - VQ2 = variable_queue_publish(false, Count, VQ1), - VQ3 = rabbit_variable_queue:set_ram_duration_target(0, VQ2), - {VQ4, _AckTags} = variable_queue_fetch(Count, true, false, - Count + Count, VQ3), - {VQ5, _AckTags1} = variable_queue_fetch(Count, false, false, - Count, VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = rabbit_variable_queue:init(test_queue(), true, true), - {{_Msg1, true, _AckTag1, Count1}, VQ8} = - rabbit_variable_queue:fetch(true, VQ7), - VQ9 = variable_queue_publish(false, 1, VQ8), - VQ10 = rabbit_variable_queue:set_ram_duration_target(0, VQ9), - {VQ11, _AckTags2} = variable_queue_fetch(Count1, true, true, Count, VQ10), - {VQ12, _AckTags3} = variable_queue_fetch(1, false, false, 1, VQ11), - VQ12. - -test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ0) -> - VQ1 = rabbit_variable_queue:set_ram_duration_target(0, VQ0), - VQ2 = variable_queue_publish(false, 4, VQ1), - {VQ3, AckTags} = variable_queue_fetch(2, false, false, 4, VQ2), - VQ4 = rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, VQ3), - VQ5 = rabbit_variable_queue:idle_timeout(VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = rabbit_variable_queue:init(test_queue(), true, true), - {empty, VQ8} = rabbit_variable_queue:fetch(false, VQ7), - VQ8. - -test_queue_recover() -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - TxID = rabbit_guid:guid(), - {new, #amqqueue { pid = QPid, name = QName }} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - Msg = rabbit_basic:message(rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, <<>>), - Delivery = #delivery{mandatory = false, immediate = false, txn = TxID, - sender = self(), message = Msg}, - [true = rabbit_amqqueue:deliver(QPid, Delivery) || - _ <- lists:seq(1, Count)], - rabbit_amqqueue:commit_all([QPid], TxID, self()), - exit(QPid, kill), - MRef = erlang:monitor(process, QPid), - receive {'DOWN', MRef, process, QPid, _Info} -> ok - after 10000 -> exit(timeout_waiting_for_queue_death) - end, - rabbit_amqqueue:stop(), - ok = rabbit_amqqueue:start(), - rabbit_amqqueue:with_or_die( - QName, - fun (Q1 = #amqqueue { pid = QPid1 }) -> - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid1, _AckTag, true, _Msg}} = - rabbit_amqqueue:basic_get(Q1, self(), false), - exit(QPid1, shutdown), - VQ1 = rabbit_variable_queue:init(QName, true, true), - {{_Msg1, true, _AckTag1, CountMinusOne}, VQ2} = - rabbit_variable_queue:fetch(true, VQ1), - _VQ3 = rabbit_variable_queue:delete_and_terminate(VQ2), - rabbit_amqqueue:internal_delete(QName) - end), - passed. - -test_configurable_server_properties() -> - %% List of the names of the built-in properties do we expect to find - BuiltInPropNames = [<<"product">>, <<"version">>, <<"platform">>, - <<"copyright">>, <<"information">>], - - %% Verify that the built-in properties are initially present - ActualPropNames = [Key || - {Key, longstr, _} <- rabbit_reader:server_properties()], - true = lists:all(fun (X) -> lists:member(X, ActualPropNames) end, - BuiltInPropNames), - - %% Get the initial server properties configured in the environment - {ok, ServerProperties} = application:get_env(rabbit, server_properties), - - %% Helper functions - ConsProp = fun (X) -> application:set_env(rabbit, - server_properties, - [X | ServerProperties]) end, - IsPropPresent = fun (X) -> lists:member(X, - rabbit_reader:server_properties()) - end, - - %% Add a wholly new property of the simplified {KeyAtom, StringValue} form - NewSimplifiedProperty = {NewHareKey, NewHareVal} = {hare, "soup"}, - ConsProp(NewSimplifiedProperty), - %% Do we find hare soup, appropriately formatted in the generated properties? - ExpectedHareImage = {list_to_binary(atom_to_list(NewHareKey)), - longstr, - list_to_binary(NewHareVal)}, - true = IsPropPresent(ExpectedHareImage), - - %% Add a wholly new property of the {BinaryKey, Type, Value} form - %% and check for it - NewProperty = {<<"new-bin-key">>, signedint, -1}, - ConsProp(NewProperty), - %% Do we find the new property? - true = IsPropPresent(NewProperty), - - %% Add a property that clobbers a built-in, and verify correct clobbering - {NewVerKey, NewVerVal} = NewVersion = {version, "X.Y.Z."}, - {BinNewVerKey, BinNewVerVal} = {list_to_binary(atom_to_list(NewVerKey)), - list_to_binary(NewVerVal)}, - ConsProp(NewVersion), - ClobberedServerProps = rabbit_reader:server_properties(), - %% Is the clobbering insert present? - true = IsPropPresent({BinNewVerKey, longstr, BinNewVerVal}), - %% Is the clobbering insert the only thing with the clobbering key? - [{BinNewVerKey, longstr, BinNewVerVal}] = - [E || {K, longstr, _V} = E <- ClobberedServerProps, K =:= BinNewVerKey], - - application:set_env(rabbit, server_properties, ServerProperties), - passed. diff --git a/src/rabbit_tests_event_receiver.erl b/src/rabbit_tests_event_receiver.erl deleted file mode 100644 index 2d9ec850..00000000 --- a/src/rabbit_tests_event_receiver.erl +++ /dev/null @@ -1,77 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_tests_event_receiver). - --export([start/1, stop/0]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/1 :: (_) -> any()). --spec(stop/0 :: () -> any()). - --endif. - -%%---------------------------------------------------------------------------- - -start(Pid) -> - gen_event:add_handler(rabbit_event, ?MODULE, [Pid]). - -stop() -> - gen_event:delete_handler(rabbit_event, ?MODULE, []). - -%%---------------------------------------------------------------------------- - -init([Pid]) -> - {ok, Pid}. - -handle_call(_Request, Pid) -> - {ok, not_understood, Pid}. - -handle_event(Event, Pid) -> - Pid ! Event, - {ok, Pid}. - -handle_info(_Info, Pid) -> - {ok, Pid}. - -terminate(_Arg, _Pid) -> - ok. - -code_change(_OldVsn, Pid, _Extra) -> - {ok, Pid}. - -%%---------------------------------------------------------------------------- diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl deleted file mode 100644 index 7020e0b6..00000000 --- a/src/rabbit_writer.erl +++ /dev/null @@ -1,239 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(rabbit_writer). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([start/5, start_link/5, mainloop/2, mainloop1/2]). --export([send_command/2, send_command/3, send_command_sync/2, - send_command_sync/3, send_command_and_notify/5]). --export([internal_send_command/4, internal_send_command/6]). - --import(gen_tcp). - --record(wstate, {sock, channel, frame_max, protocol}). - --define(HIBERNATE_AFTER, 5000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(start_link/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(send_command/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_sync/2 :: - (pid(), rabbit_framing:amqp_method()) -> 'ok'). --spec(send_command_sync/3 :: - (pid(), rabbit_framing:amqp_method(), rabbit_types:content()) -> 'ok'). --spec(send_command_and_notify/5 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record(), - rabbit_types:content()) - -> 'ok'). --spec(internal_send_command/4 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:protocol()) - -> 'ok'). --spec(internal_send_command/6 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> 'ok'). - --spec(mainloop/2 :: (_,_) -> 'done'). --spec(mainloop1/2 :: (_,_) -> any()). - --endif. - -%%---------------------------------------------------------------------------- - -start(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -start_link(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn_link(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -mainloop(ReaderPid, State) -> - try - mainloop1(ReaderPid, State) - catch - exit:Error -> ReaderPid ! {channel_exit, #wstate.channel, Error} - end, - done. - -mainloop1(ReaderPid, State) -> - receive - Message -> ?MODULE:mainloop1(ReaderPid, handle_message(Message, State)) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, mainloop, [ReaderPid, State]) - end. - -handle_message({send_command, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - State; -handle_message({send_command, MethodRecord, Content}, State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord}}, State) -> - ok = internal_send_command_async(MethodRecord, State), - gen_server:reply(From, ok), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord, Content}}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - gen_server:reply(From, ok), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord, Content}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({inet_reply, _, ok}, State) -> - State; -handle_message({inet_reply, _, Status}, _State) -> - exit({writer, send_failed, Status}); -handle_message(Message, _State) -> - exit({writer, message_not_understood, Message}). - -%--------------------------------------------------------------------------- - -send_command(W, MethodRecord) -> - W ! {send_command, MethodRecord}, - ok. - -send_command(W, MethodRecord, Content) -> - W ! {send_command, MethodRecord, Content}, - ok. - -send_command_sync(W, MethodRecord) -> - call(W, {send_command_sync, MethodRecord}). - -send_command_sync(W, MethodRecord, Content) -> - call(W, {send_command_sync, MethodRecord, Content}). - -send_command_and_notify(W, Q, ChPid, MethodRecord, Content) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord, Content}, - ok. - -%--------------------------------------------------------------------------- - -call(Pid, Msg) -> - {ok, Res} = gen:call(Pid, '$gen_call', Msg, infinity), - Res. - -%--------------------------------------------------------------------------- - -assemble_frames(Channel, MethodRecord, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, none), - rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol). - -assemble_frames(Channel, MethodRecord, Content, FrameMax, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, Content), - MethodName = rabbit_misc:method_record_type(MethodRecord), - true = Protocol:method_has_content(MethodName), % assertion - MethodFrame = rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol), - ContentFrames = rabbit_binary_generator:build_simple_content_frames( - Channel, Content, FrameMax, Protocol), - [MethodFrame | ContentFrames]. - -tcp_send(Sock, Data) -> - rabbit_misc:throw_on_error(inet_error, - fun () -> rabbit_net:send(Sock, Data) end). - -internal_send_command(Sock, Channel, MethodRecord, Protocol) -> - ok = tcp_send(Sock, assemble_frames(Channel, MethodRecord, Protocol)). - -internal_send_command(Sock, Channel, MethodRecord, Content, FrameMax, - Protocol) -> - ok = tcp_send(Sock, assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -%% gen_tcp:send/2 does a selective receive of {inet_reply, Sock, -%% Status} to obtain the result. That is bad when it is called from -%% the writer since it requires scanning of the writers possibly quite -%% large message queue. -%% -%% So instead we lift the code from prim_inet:send/2, which is what -%% gen_tcp:send/2 calls, do the first half here and then just process -%% the result code in handle_message/2 as and when it arrives. -%% -%% This means we may end up happily sending data down a closed/broken -%% socket, but that's ok since a) data in the buffers will be lost in -%% any case (so qualitatively we are no worse off than if we used -%% gen_tcp:send/2), and b) we do detect the changed socket status -%% eventually, i.e. when we get round to handling the result code. -%% -%% Also note that the port has bounded buffers and port_command blocks -%% when these are full. So the fact that we process the result -%% asynchronously does not impact flow control. -internal_send_command_async(MethodRecord, - #wstate{sock = Sock, - channel = Channel, - protocol = Protocol}) -> - true = port_cmd(Sock, assemble_frames(Channel, MethodRecord, Protocol)), - ok. - -internal_send_command_async(MethodRecord, Content, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}) -> - true = port_cmd(Sock, assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)), - ok. - -port_cmd(Sock, Data) -> - try rabbit_net:port_command(Sock, Data) - catch error:Error -> exit({writer, send_failed, Error}) - end. diff --git a/src/supervisor2.erl b/src/supervisor2.erl deleted file mode 100644 index decb331b..00000000 --- a/src/supervisor2.erl +++ /dev/null @@ -1,1038 +0,0 @@ -%% This file is a copy of supervisor.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is supervisor2 -%% -%% 2) there is a new strategy called -%% simple_one_for_one_terminate. This is exactly the same as for -%% simple_one_for_one, except that children *are* explicitly -%% terminated as per the shutdown component of the child_spec. -%% -%% 3) child specifications can contain, as the restart type, a tuple -%% {permanent, Delay} | {transient, Delay} where Delay >= 0. The -%% delay, in seconds, indicates what should happen if a child, upon -%% being restarted, exceeds the MaxT and MaxR parameters. Thus, if -%% a child exits, it is restarted as normal. If it exits -%% sufficiently quickly and often to exceed the boundaries set by -%% the MaxT and MaxR parameters, and a Delay is specified, then -%% rather than stopping the supervisor, the supervisor instead -%% continues and tries to start up the child again, Delay seconds -%% later. -%% -%% Note that you can never restart more frequently than the MaxT -%% and MaxR parameters allow: i.e. you must wait until *both* the -%% Delay has passed *and* the MaxT and MaxR parameters allow the -%% child to be restarted. -%% -%% Also note that the Delay is a *minimum*. There is no guarantee -%% that the child will be restarted within that time, especially if -%% other processes are dying and being restarted at the same time - -%% essentially we have to wait for the delay to have passed and for -%% the MaxT and MaxR parameters to permit the child to be -%% restarted. This may require waiting for longer than Delay. -%% -%% 4) Added an 'intrinsic' restart type. Like the transient type, this -%% type means the child should only be restarted if the child exits -%% abnormally. Unlike the transient type, if the child exits -%% normally, the supervisor itself also exits normally. If the -%% child is a supervisor and it exits normally (i.e. with reason of -%% 'shutdown') then the child's parent also exits normally. -%% -%% All modifications are (C) 2010 Rabbit Technologies Ltd. -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(supervisor2). - --behaviour(gen_server). - -%% External exports --export([start_link/2,start_link/3, - start_child/2, restart_child/2, - delete_child/2, terminate_child/2, - which_children/1, find_child/2, - check_childspecs/1]). - --export([behaviour_info/1]). - -%% Internal exports --export([init/1, handle_call/3, handle_info/2, terminate/2, code_change/3]). --export([handle_cast/2]). --export([delayed_restart/2]). - --define(DICT, dict). - --record(state, {name, - strategy, - children = [], - dynamics = ?DICT:new(), - intensity, - period, - restarts = [], - module, - args}). - --record(child, {pid = undefined, % pid is undefined when child is not running - name, - mfa, - restart_type, - shutdown, - child_type, - modules = []}). - --define(is_simple(State), State#state.strategy =:= simple_one_for_one orelse - State#state.strategy =:= simple_one_for_one_terminate). --define(is_terminate_simple(State), - State#state.strategy =:= simple_one_for_one_terminate). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(behaviour_info/1 :: (_) -> 'undefined' | [{'init',1},...]). --spec(check_childspecs/1 :: (_) -> 'ok' | {'error',_}). --spec(delayed_restart/2 :: (atom() | pid() | {atom(),_},_) -> 'ok'). --spec(delete_child/2 :: (_,_) -> any()). --spec(find_child/2 :: (_,_) -> [any()]). --spec(restart_child/2 :: (_,_) -> any()). --spec(start_child/2 :: (_,_) -> any()). --spec(start_link/2 :: (_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). --spec(start_link/3 :: - ({'global',_} | {'local',atom()},_,_) -> - 'ignore' | {'error',_} | {'ok',pid()}). --spec(terminate_child/2 :: (_,_) -> any()). --spec(which_children/1 :: (_) -> any()). - --endif. - -%%---------------------------------------------------------------------------- - -behaviour_info(callbacks) -> - [{init,1}]; -behaviour_info(_Other) -> - undefined. - -%%% --------------------------------------------------- -%%% This is a general process supervisor built upon gen_server.erl. -%%% Servers/processes should/could also be built using gen_server.erl. -%%% SupName = {local, atom()} | {global, atom()}. -%%% --------------------------------------------------- -start_link(Mod, Args) -> - gen_server:start_link(?MODULE, {self, Mod, Args}, []). - -start_link(SupName, Mod, Args) -> - gen_server:start_link(SupName, ?MODULE, {SupName, Mod, Args}, []). - -%%% --------------------------------------------------- -%%% Interface functions. -%%% --------------------------------------------------- -start_child(Supervisor, ChildSpec) -> - call(Supervisor, {start_child, ChildSpec}). - -restart_child(Supervisor, Name) -> - call(Supervisor, {restart_child, Name}). - -delete_child(Supervisor, Name) -> - call(Supervisor, {delete_child, Name}). - -%%----------------------------------------------------------------- -%% Func: terminate_child/2 -%% Returns: ok | {error, Reason} -%% Note that the child is *always* terminated in some -%% way (maybe killed). -%%----------------------------------------------------------------- -terminate_child(Supervisor, Name) -> - call(Supervisor, {terminate_child, Name}). - -which_children(Supervisor) -> - call(Supervisor, which_children). - -find_child(Supervisor, Name) -> - [Pid || {Name1, Pid, _Type, _Modules} <- which_children(Supervisor), - Name1 =:= Name]. - -call(Supervisor, Req) -> - gen_server:call(Supervisor, Req, infinity). - -check_childspecs(ChildSpecs) when is_list(ChildSpecs) -> - case check_startspec(ChildSpecs) of - {ok, _} -> ok; - Error -> {error, Error} - end; -check_childspecs(X) -> {error, {badarg, X}}. - -delayed_restart(Supervisor, RestartDetails) -> - gen_server:cast(Supervisor, {delayed_restart, RestartDetails}). - -%%% --------------------------------------------------- -%%% -%%% Initialize the supervisor. -%%% -%%% --------------------------------------------------- -init({SupName, Mod, Args}) -> - process_flag(trap_exit, true), - case Mod:init(Args) of - {ok, {SupFlags, StartSpec}} -> - case init_state(SupName, SupFlags, Mod, Args) of - {ok, State} when ?is_simple(State) -> - init_dynamic(State, StartSpec); - {ok, State} -> - init_children(State, StartSpec); - Error -> - {stop, {supervisor_data, Error}} - end; - ignore -> - ignore; - Error -> - {stop, {bad_return, {Mod, init, Error}}} - end. - -init_children(State, StartSpec) -> - SupName = State#state.name, - case check_startspec(StartSpec) of - {ok, Children} -> - case start_children(Children, SupName) of - {ok, NChildren} -> - {ok, State#state{children = NChildren}}; - {error, NChildren} -> - terminate_children(NChildren, SupName), - {stop, shutdown} - end; - Error -> - {stop, {start_spec, Error}} - end. - -init_dynamic(State, [StartSpec]) -> - case check_startspec([StartSpec]) of - {ok, Children} -> - {ok, State#state{children = Children}}; - Error -> - {stop, {start_spec, Error}} - end; -init_dynamic(_State, StartSpec) -> - {stop, {bad_start_spec, StartSpec}}. - -%%----------------------------------------------------------------- -%% Func: start_children/2 -%% Args: Children = [#child] in start order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Purpose: Start all children. The new list contains #child's -%% with pids. -%% Returns: {ok, NChildren} | {error, NChildren} -%% NChildren = [#child] in termination order (reversed -%% start order) -%%----------------------------------------------------------------- -start_children(Children, SupName) -> start_children(Children, [], SupName). - -start_children([Child|Chs], NChildren, SupName) -> - case do_start_child(SupName, Child) of - {ok, Pid} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {ok, Pid, _Extra} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {error, Reason} -> - report_error(start_error, Reason, Child, SupName), - {error, lists:reverse(Chs) ++ [Child | NChildren]} - end; -start_children([], NChildren, _SupName) -> - {ok, NChildren}. - -do_start_child(SupName, Child) -> - #child{mfa = {M, F, A}} = Child, - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, What} -> {error, What}; - What -> {error, What} - end. - -do_start_child_i(M, F, A) -> - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, Error} -> - {error, Error}; - What -> - {error, What} - end. - - -%%% --------------------------------------------------- -%%% -%%% Callback functions. -%%% -%%% --------------------------------------------------- -handle_call({start_child, EArgs}, _From, State) when ?is_simple(State) -> - #child{mfa = {M, F, A}} = hd(State#state.children), - Args = A ++ EArgs, - case do_start_child_i(M, F, Args) of - {ok, Pid} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid, Extra}, NState}; - What -> - {reply, What, State} - end; - -%%% The requests terminate_child, delete_child and restart_child are -%%% invalid for simple_one_for_one and simple_one_for_one_terminate -%%% supervisors. -handle_call({_Req, _Data}, _From, State) when ?is_simple(State) -> - {reply, {error, State#state.strategy}, State}; - -handle_call({start_child, ChildSpec}, _From, State) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - {Resp, NState} = handle_start_child(Child, State), - {reply, Resp, NState}; - What -> - {reply, {error, What}, State} - end; - -handle_call({restart_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid, Extra}, NState}; - Error -> - {reply, Error, State} - end; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({delete_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - NState = remove_child(Child, State), - {reply, ok, NState}; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({terminate_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} -> - NChild = do_terminate(Child, State#state.name), - {reply, ok, replace_child(NChild, State)}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call(which_children, _From, State) when ?is_simple(State) -> - [#child{child_type = CT, modules = Mods}] = State#state.children, - Reply = lists:map(fun ({Pid, _}) -> {undefined, Pid, CT, Mods} end, - ?DICT:to_list(State#state.dynamics)), - {reply, Reply, State}; - -handle_call(which_children, _From, State) -> - Resp = - lists:map(fun (#child{pid = Pid, name = Name, - child_type = ChildType, modules = Mods}) -> - {Name, Pid, ChildType, Mods} - end, - State#state.children), - {reply, Resp, State}. - - -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) - when ?is_simple(State) -> - {ok, NState} = do_restart(RestartType, Reason, Child, State), - {noreply, NState}; -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) - when not (?is_simple(State)) -> - case get_child(Child#child.name, State) of - {value, Child} -> - {ok, NState} = do_restart(RestartType, Reason, Child, State), - {noreply, NState}; - _ -> - {noreply, State} - end; - -%%% Hopefully cause a function-clause as there is no API function -%%% that utilizes cast. -handle_cast(null, State) -> - error_logger:error_msg("ERROR: Supervisor received cast-message 'null'~n", - []), - - {noreply, State}. - -%% -%% Take care of terminated children. -%% -handle_info({'EXIT', Pid, Reason}, State) -> - case restart_child(Pid, Reason, State) of - {ok, State1} -> - {noreply, State1}; - {shutdown, State1} -> - {stop, shutdown, State1} - end; - -handle_info(Msg, State) -> - error_logger:error_msg("Supervisor received unexpected message: ~p~n", - [Msg]), - {noreply, State}. -%% -%% Terminate this server. -%% -terminate(_Reason, State) when ?is_terminate_simple(State) -> - terminate_simple_children( - hd(State#state.children), State#state.dynamics, State#state.name), - ok; -terminate(_Reason, State) -> - terminate_children(State#state.children, State#state.name), - ok. - -%% -%% Change code for the supervisor. -%% Call the new call-back module and fetch the new start specification. -%% Combine the new spec. with the old. If the new start spec. is -%% not valid the code change will not succeed. -%% Use the old Args as argument to Module:init/1. -%% NOTE: This requires that the init function of the call-back module -%% does not have any side effects. -%% -code_change(_, State, _) -> - case (State#state.module):init(State#state.args) of - {ok, {SupFlags, StartSpec}} -> - case catch check_flags(SupFlags) of - ok -> - {Strategy, MaxIntensity, Period} = SupFlags, - update_childspec(State#state{strategy = Strategy, - intensity = MaxIntensity, - period = Period}, - StartSpec); - Error -> - {error, Error} - end; - ignore -> - {ok, State}; - Error -> - Error - end. - -check_flags({Strategy, MaxIntensity, Period}) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - ok; -check_flags(What) -> - {bad_flags, What}. - -update_childspec(State, StartSpec) when ?is_simple(State) -> - case check_startspec(StartSpec) of - {ok, [Child]} -> - {ok, State#state{children = [Child]}}; - Error -> - {error, Error} - end; - -update_childspec(State, StartSpec) -> - case check_startspec(StartSpec) of - {ok, Children} -> - OldC = State#state.children, % In reverse start order ! - NewC = update_childspec1(OldC, Children, []), - {ok, State#state{children = NewC}}; - Error -> - {error, Error} - end. - -update_childspec1([Child|OldC], Children, KeepOld) -> - case update_chsp(Child, Children) of - {ok,NewChildren} -> - update_childspec1(OldC, NewChildren, KeepOld); - false -> - update_childspec1(OldC, Children, [Child|KeepOld]) - end; -update_childspec1([], Children, KeepOld) -> - % Return them in (keeped) reverse start order. - lists:reverse(Children ++ KeepOld). - -update_chsp(OldCh, Children) -> - case lists:map(fun (Ch) when OldCh#child.name =:= Ch#child.name -> - Ch#child{pid = OldCh#child.pid}; - (Ch) -> - Ch - end, - Children) of - Children -> - false; % OldCh not found in new spec. - NewC -> - {ok, NewC} - end. - -%%% --------------------------------------------------- -%%% Start a new child. -%%% --------------------------------------------------- - -handle_start_child(Child, State) -> - case get_child(Child#child.name, State) of - false -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - Children = State#state.children, - {{ok, Pid}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {ok, Pid, Extra} -> - Children = State#state.children, - {{ok, Pid, Extra}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {error, What} -> - {{error, {What, Child}}, State} - end; - {value, OldChild} when OldChild#child.pid =/= undefined -> - {{error, {already_started, OldChild#child.pid}}, State}; - {value, _OldChild} -> - {{error, already_present}, State} - end. - -%%% --------------------------------------------------- -%%% Restart. A process has terminated. -%%% Returns: {ok, #state} | {shutdown, #state} -%%% --------------------------------------------------- - -restart_child(Pid, Reason, State) when ?is_simple(State) -> - case ?DICT:find(Pid, State#state.dynamics) of - {ok, Args} -> - [Child] = State#state.children, - RestartType = Child#child.restart_type, - {M, F, _} = Child#child.mfa, - NChild = Child#child{pid = Pid, mfa = {M, F, Args}}, - do_restart(RestartType, Reason, NChild, State); - error -> - {ok, State} - end; -restart_child(Pid, Reason, State) -> - Children = State#state.children, - case lists:keysearch(Pid, #child.pid, Children) of - {value, Child} -> - RestartType = Child#child.restart_type, - do_restart(RestartType, Reason, Child, State); - _ -> - {ok, State} - end. - -do_restart({RestartType, Delay}, Reason, Child, State) -> - case restart1(Child, State) of - {ok, NState} -> - {ok, NState}; - {terminate, NState} -> - {ok, _TRef} = timer:apply_after( - trunc(Delay*1000), ?MODULE, delayed_restart, - [self(), {{RestartType, Delay}, Reason, Child}]), - {ok, NState} - end; -do_restart(permanent, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(intrinsic, normal, Child, State) -> - {shutdown, state_del_child(Child, State)}; -do_restart(intrinsic, shutdown, Child = #child{child_type = supervisor}, - State) -> - {shutdown, state_del_child(Child, State)}; -do_restart(_, normal, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(_, shutdown, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(Type, Reason, Child, State) when Type =:= transient orelse - Type =:= intrinsic -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(temporary, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - NState = state_del_child(Child, State), - {ok, NState}. - -restart(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart/2); - {terminate, NState} -> - report_error(shutdown, reached_max_restart_intensity, - Child, State#state.name), - {shutdown, state_del_child(Child, NState)} - end. - -restart1(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart1/2); - {terminate, _NState} -> - %% we've reached the max restart intensity, but the - %% add_restart will have added to the restarts - %% field. Given we don't want to die here, we need to go - %% back to the old restarts field otherwise we'll never - %% attempt to restart later. - {terminate, State} - end. - -restart(Strategy, Child, State, Restart) - when Strategy =:= simple_one_for_one orelse - Strategy =:= simple_one_for_one_terminate -> - #child{mfa = {M, F, A}} = Child, - Dynamics = ?DICT:erase(Child#child.pid, State#state.dynamics), - case do_start_child_i(M, F, A) of - {ok, Pid} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {ok, Pid, _Extra} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {error, Error} -> - report_error(start_error, Error, Child, State#state.name), - Restart(Child, State) - end; -restart(one_for_one, Child, State, Restart) -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {ok, Pid, _Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {error, Reason} -> - report_error(start_error, Reason, Child, State#state.name), - Restart(Child, State) - end; -restart(rest_for_one, Child, State, Restart) -> - {ChAfter, ChBefore} = split_child(Child#child.pid, State#state.children), - ChAfter2 = terminate_children(ChAfter, State#state.name), - case start_children(ChAfter2, State#state.name) of - {ok, ChAfter3} -> - {ok, State#state{children = ChAfter3 ++ ChBefore}}; - {error, ChAfter3} -> - Restart(Child, State#state{children = ChAfter3 ++ ChBefore}) - end; -restart(one_for_all, Child, State, Restart) -> - Children1 = del_child(Child#child.pid, State#state.children), - Children2 = terminate_children(Children1, State#state.name), - case start_children(Children2, State#state.name) of - {ok, NChs} -> - {ok, State#state{children = NChs}}; - {error, NChs} -> - Restart(Child, State#state{children = NChs}) - end. - -%%----------------------------------------------------------------- -%% Func: terminate_children/2 -%% Args: Children = [#child] in termination order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Returns: NChildren = [#child] in -%% startup order (reversed termination order) -%%----------------------------------------------------------------- -terminate_children(Children, SupName) -> - terminate_children(Children, SupName, []). - -terminate_children([Child | Children], SupName, Res) -> - NChild = do_terminate(Child, SupName), - terminate_children(Children, SupName, [NChild | Res]); -terminate_children([], _SupName, Res) -> - Res. - -terminate_simple_children(Child, Dynamics, SupName) -> - dict:fold(fun (Pid, _Args, _Any) -> - do_terminate(Child#child{pid = Pid}, SupName) - end, ok, Dynamics), - ok. - -do_terminate(Child, SupName) when Child#child.pid =/= undefined -> - ReportError = fun (Reason) -> - report_error(shutdown_error, Reason, Child, SupName) - end, - case shutdown(Child#child.pid, Child#child.shutdown) of - ok -> - ok; - {error, normal} -> - case Child#child.restart_type of - permanent -> ReportError(normal); - {permanent, _Delay} -> ReportError(normal); - _ -> ok - end; - {error, OtherReason} -> - ReportError(OtherReason) - end, - Child#child{pid = undefined}; -do_terminate(Child, _SupName) -> - Child. - -%%----------------------------------------------------------------- -%% Shutdowns a child. We must check the EXIT value -%% of the child, because it might have died with another reason than -%% the wanted. In that case we want to report the error. We put a -%% monitor on the child an check for the 'DOWN' message instead of -%% checking for the 'EXIT' message, because if we check the 'EXIT' -%% message a "naughty" child, who does unlink(Sup), could hang the -%% supervisor. -%% Returns: ok | {error, OtherReason} (this should be reported) -%%----------------------------------------------------------------- -shutdown(Pid, brutal_kill) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, kill), - receive - {'DOWN', _MRef, process, Pid, killed} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end; - {error, Reason} -> - {error, Reason} - end; - -shutdown(Pid, Time) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, shutdown), %% Try to shutdown gracefully - receive - {'DOWN', _MRef, process, Pid, shutdown} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - after Time -> - exit(Pid, kill), %% Force termination. - receive - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end - end; - {error, Reason} -> - {error, Reason} - end. - -%% Help function to shutdown/2 switches from link to monitor approach -monitor_child(Pid) -> - - %% Do the monitor operation first so that if the child dies - %% before the monitoring is done causing a 'DOWN'-message with - %% reason noproc, we will get the real reason in the 'EXIT'-message - %% unless a naughty child has already done unlink... - erlang:monitor(process, Pid), - unlink(Pid), - - receive - %% If the child dies before the unlik we must empty - %% the mail-box of the 'EXIT'-message and the 'DOWN'-message. - {'EXIT', Pid, Reason} -> - receive - {'DOWN', _, process, Pid, _} -> - {error, Reason} - end - after 0 -> - %% If a naughty child did unlink and the child dies before - %% monitor the result will be that shutdown/2 receives a - %% 'DOWN'-message with reason noproc. - %% If the child should die after the unlink there - %% will be a 'DOWN'-message with a correct reason - %% that will be handled in shutdown/2. - ok - end. - - -%%----------------------------------------------------------------- -%% Child/State manipulating functions. -%%----------------------------------------------------------------- -state_del_child(#child{pid = Pid}, State) when ?is_simple(State) -> - NDynamics = ?DICT:erase(Pid, State#state.dynamics), - State#state{dynamics = NDynamics}; -state_del_child(Child, State) -> - NChildren = del_child(Child#child.name, State#state.children), - State#state{children = NChildren}. - -del_child(Name, [Ch|Chs]) when Ch#child.name =:= Name -> - [Ch#child{pid = undefined} | Chs]; -del_child(Pid, [Ch|Chs]) when Ch#child.pid =:= Pid -> - [Ch#child{pid = undefined} | Chs]; -del_child(Name, [Ch|Chs]) -> - [Ch|del_child(Name, Chs)]; -del_child(_, []) -> - []. - -%% Chs = [S4, S3, Ch, S1, S0] -%% Ret: {[S4, S3, Ch], [S1, S0]} -split_child(Name, Chs) -> - split_child(Name, Chs, []). - -split_child(Name, [Ch|Chs], After) when Ch#child.name =:= Name -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Pid, [Ch|Chs], After) when Ch#child.pid =:= Pid -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Name, [Ch|Chs], After) -> - split_child(Name, Chs, [Ch | After]); -split_child(_, [], After) -> - {lists:reverse(After), []}. - -get_child(Name, State) -> - lists:keysearch(Name, #child.name, State#state.children). -replace_child(Child, State) -> - Chs = do_replace_child(Child, State#state.children), - State#state{children = Chs}. - -do_replace_child(Child, [Ch|Chs]) when Ch#child.name =:= Child#child.name -> - [Child | Chs]; -do_replace_child(Child, [Ch|Chs]) -> - [Ch|do_replace_child(Child, Chs)]. - -remove_child(Child, State) -> - Chs = lists:keydelete(Child#child.name, #child.name, State#state.children), - State#state{children = Chs}. - -%%----------------------------------------------------------------- -%% Func: init_state/4 -%% Args: SupName = {local, atom()} | {global, atom()} | self -%% Type = {Strategy, MaxIntensity, Period} -%% Strategy = one_for_one | one_for_all | simple_one_for_one | -%% rest_for_one -%% MaxIntensity = integer() -%% Period = integer() -%% Mod :== atom() -%% Arsg :== term() -%% Purpose: Check that Type is of correct type (!) -%% Returns: {ok, #state} | Error -%%----------------------------------------------------------------- -init_state(SupName, Type, Mod, Args) -> - case catch init_state1(SupName, Type, Mod, Args) of - {ok, State} -> - {ok, State}; - Error -> - Error - end. - -init_state1(SupName, {Strategy, MaxIntensity, Period}, Mod, Args) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - {ok, #state{name = supname(SupName,Mod), - strategy = Strategy, - intensity = MaxIntensity, - period = Period, - module = Mod, - args = Args}}; -init_state1(_SupName, Type, _, _) -> - {invalid_type, Type}. - -validStrategy(simple_one_for_one_terminate) -> true; -validStrategy(simple_one_for_one) -> true; -validStrategy(one_for_one) -> true; -validStrategy(one_for_all) -> true; -validStrategy(rest_for_one) -> true; -validStrategy(What) -> throw({invalid_strategy, What}). - -validIntensity(Max) when is_integer(Max), - Max >= 0 -> true; -validIntensity(What) -> throw({invalid_intensity, What}). - -validPeriod(Period) when is_integer(Period), - Period > 0 -> true; -validPeriod(What) -> throw({invalid_period, What}). - -supname(self,Mod) -> {self(),Mod}; -supname(N,_) -> N. - -%%% ------------------------------------------------------ -%%% Check that the children start specification is valid. -%%% Shall be a six (6) tuple -%%% {Name, Func, RestartType, Shutdown, ChildType, Modules} -%%% where Name is an atom -%%% Func is {Mod, Fun, Args} == {atom, atom, list} -%%% RestartType is permanent | temporary | transient | -%%% intrinsic | {permanent, Delay} | -%%% {transient, Delay} where Delay >= 0 -%%% Shutdown = integer() | infinity | brutal_kill -%%% ChildType = supervisor | worker -%%% Modules = [atom()] | dynamic -%%% Returns: {ok, [#child]} | Error -%%% ------------------------------------------------------ - -check_startspec(Children) -> check_startspec(Children, []). - -check_startspec([ChildSpec|T], Res) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - case lists:keymember(Child#child.name, #child.name, Res) of - true -> {duplicate_child_name, Child#child.name}; - false -> check_startspec(T, [Child | Res]) - end; - Error -> Error - end; -check_startspec([], Res) -> - {ok, lists:reverse(Res)}. - -check_childspec({Name, Func, RestartType, Shutdown, ChildType, Mods}) -> - catch check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods); -check_childspec(X) -> {invalid_child_spec, X}. - -check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods) -> - validName(Name), - validFunc(Func), - validRestartType(RestartType), - validChildType(ChildType), - validShutdown(Shutdown, ChildType), - validMods(Mods), - {ok, #child{name = Name, mfa = Func, restart_type = RestartType, - shutdown = Shutdown, child_type = ChildType, modules = Mods}}. - -validChildType(supervisor) -> true; -validChildType(worker) -> true; -validChildType(What) -> throw({invalid_child_type, What}). - -validName(_Name) -> true. - -validFunc({M, F, A}) when is_atom(M), - is_atom(F), - is_list(A) -> true; -validFunc(Func) -> throw({invalid_mfa, Func}). - -validRestartType(permanent) -> true; -validRestartType(temporary) -> true; -validRestartType(transient) -> true; -validRestartType(intrinsic) -> true; -validRestartType({permanent, Delay}) -> validDelay(Delay); -validRestartType({transient, Delay}) -> validDelay(Delay); -validRestartType(RestartType) -> throw({invalid_restart_type, - RestartType}). - -validDelay(Delay) when is_number(Delay), - Delay >= 0 -> true; -validDelay(What) -> throw({invalid_delay, What}). - -validShutdown(Shutdown, _) - when is_integer(Shutdown), Shutdown > 0 -> true; -validShutdown(infinity, supervisor) -> true; -validShutdown(brutal_kill, _) -> true; -validShutdown(Shutdown, _) -> throw({invalid_shutdown, Shutdown}). - -validMods(dynamic) -> true; -validMods(Mods) when is_list(Mods) -> - lists:foreach(fun (Mod) -> - if - is_atom(Mod) -> ok; - true -> throw({invalid_module, Mod}) - end - end, - Mods); -validMods(Mods) -> throw({invalid_modules, Mods}). - -%%% ------------------------------------------------------ -%%% Add a new restart and calculate if the max restart -%%% intensity has been reached (in that case the supervisor -%%% shall terminate). -%%% All restarts accured inside the period amount of seconds -%%% are kept in the #state.restarts list. -%%% Returns: {ok, State'} | {terminate, State'} -%%% ------------------------------------------------------ - -add_restart(State) -> - I = State#state.intensity, - P = State#state.period, - R = State#state.restarts, - Now = erlang:now(), - R1 = add_restart([Now|R], Now, P), - State1 = State#state{restarts = R1}, - case length(R1) of - CurI when CurI =< I -> - {ok, State1}; - _ -> - {terminate, State1} - end. - -add_restart([R|Restarts], Now, Period) -> - case inPeriod(R, Now, Period) of - true -> - [R|add_restart(Restarts, Now, Period)]; - _ -> - [] - end; -add_restart([], _, _) -> - []. - -inPeriod(Time, Now, Period) -> - case difference(Time, Now) of - T when T > Period -> - false; - _ -> - true - end. - -%% -%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored) -%% Calculate the time elapsed in seconds between two timestamps. -%% If MegaSecs is equal just subtract Secs. -%% Else calculate the Mega difference and add the Secs difference, -%% note that Secs difference can be negative, e.g. -%% {827, 999999, 676} diff {828, 1, 653753} == > 2 secs. -%% -difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM -> - ((CurM - TimeM) * 1000000) + (CurS - TimeS); -difference({_, TimeS, _}, {_, CurS, _}) -> - CurS - TimeS. - -%%% ------------------------------------------------------ -%%% Error and progress reporting. -%%% ------------------------------------------------------ - -report_error(Error, Reason, Child, SupName) -> - ErrorMsg = [{supervisor, SupName}, - {errorContext, Error}, - {reason, Reason}, - {offender, extract_child(Child)}], - error_logger:error_report(supervisor_report, ErrorMsg). - - -extract_child(Child) -> - [{pid, Child#child.pid}, - {name, Child#child.name}, - {mfa, Child#child.mfa}, - {restart_type, Child#child.restart_type}, - {shutdown, Child#child.shutdown}, - {child_type, Child#child.child_type}]. - -report_progress(Child, SupName) -> - Progress = [{supervisor, SupName}, - {started, extract_child(Child)}], - error_logger:info_report(progress, Progress). diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl deleted file mode 100644 index e8f036f8..00000000 --- a/src/tcp_acceptor.erl +++ /dev/null @@ -1,129 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(tcp_acceptor). - --behaviour(gen_server). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {callback, sock, ref}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/2 :: (_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). - --endif. - -%%-------------------------------------------------------------------- - -start_link(Callback, LSock) -> - gen_server:start_link(?MODULE, {Callback, LSock}, []). - -%%-------------------------------------------------------------------- - -init({Callback, LSock}) -> - gen_server:cast(self(), accept), - {ok, #state{callback=Callback, sock=LSock}}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(accept, State) -> - ok = file_handle_cache:obtain(), - accept(State); - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({inet_async, LSock, Ref, {ok, Sock}}, - State = #state{callback={M,F,A}, sock=LSock, ref=Ref}) -> - - %% patch up the socket so it looks like one we got from - %% gen_tcp:accept/1 - {ok, Mod} = inet_db:lookup_socket(LSock), - inet_db:register_socket(Sock, Mod), - - try - %% report - {Address, Port} = inet_op(fun () -> inet:sockname(LSock) end), - {PeerAddress, PeerPort} = inet_op(fun () -> inet:peername(Sock) end), - error_logger:info_msg("accepted TCP connection on ~s:~p from ~s:~p~n", - [inet_parse:ntoa(Address), Port, - inet_parse:ntoa(PeerAddress), PeerPort]), - %% In the event that somebody floods us with connections we can spew - %% the above message at error_logger faster than it can keep up. - %% So error_logger's mailbox grows unbounded until we eat all the - %% memory available and crash. So here's a meaningless synchronous call - %% to the underlying gen_event mechanism - when it returns the mailbox - %% is drained. - gen_event:which_handlers(error_logger), - %% handle - file_handle_cache:transfer(apply(M, F, A ++ [Sock])), - ok = file_handle_cache:obtain() - catch {inet_error, Reason} -> - gen_tcp:close(Sock), - error_logger:error_msg("unable to accept TCP connection: ~p~n", - [Reason]) - end, - - %% accept more - accept(State); - -handle_info({inet_async, LSock, Ref, {error, closed}}, - State=#state{sock=LSock, ref=Ref}) -> - %% It would be wrong to attempt to restart the acceptor when we - %% know this will fail. - {stop, normal, State}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -accept(State = #state{sock=LSock}) -> - case prim_inet:async_accept(LSock, -1) of - {ok, Ref} -> {noreply, State#state{ref=Ref}}; - Error -> {stop, {cannot_accept, Error}, State} - end. diff --git a/src/tcp_client_sup.erl b/src/tcp_client_sup.erl deleted file mode 100644 index 6dcf4a8e..00000000 --- a/src/tcp_client_sup.erl +++ /dev/null @@ -1,62 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(tcp_client_sup). - --behaviour(supervisor2). - --export([start_link/1, start_link/2]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (_) -> 'ignore' | {'error',_} | {'ok',pid()}). --spec(start_link/2 :: - ({'global',_} | {'local',atom()},_) -> - 'ignore' | {'error',_} | {'ok',pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Callback) -> - supervisor2:start_link(?MODULE, Callback). - -start_link(SupName, Callback) -> - supervisor2:start_link(SupName, ?MODULE, Callback). - -init({M,F,A}) -> - {ok, {{simple_one_for_one_terminate, 10, 10}, - [{tcp_client, {M,F,A}, - temporary, infinity, supervisor, [M]}]}}. diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl deleted file mode 100644 index 790b29f6..00000000 --- a/src/tcp_listener.erl +++ /dev/null @@ -1,107 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(tcp_listener). - --behaviour(gen_server). - --export([start_link/8]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {sock, on_startup, on_shutdown, label}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/8 :: - (_,_,_,_,_,_,_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). - --endif. - -%%-------------------------------------------------------------------- - -start_link(IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label) -> - gen_server:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label}, []). - -%%-------------------------------------------------------------------- - -init({IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - {M,F,A} = OnStartup, OnShutdown, Label}) -> - process_flag(trap_exit, true), - case gen_tcp:listen(Port, SocketOpts ++ [{ip, IPAddress}, - {active, false}]) of - {ok, LSock} -> - lists:foreach(fun (_) -> - {ok, _APid} = supervisor:start_child( - AcceptorSup, [LSock]) - end, - lists:duplicate(ConcurrentAcceptorCount, dummy)), - {ok, {LIPAddress, LPort}} = inet:sockname(LSock), - error_logger:info_msg("started ~s on ~s:~p~n", - [Label, inet_parse:ntoa(LIPAddress), LPort]), - apply(M, F, A ++ [IPAddress, Port]), - {ok, #state{sock = LSock, - on_startup = OnStartup, on_shutdown = OnShutdown, - label = Label}}; - {error, Reason} -> - error_logger:error_msg( - "failed to start ~s on ~s:~p - ~p~n", - [Label, inet_parse:ntoa(IPAddress), Port, Reason]), - {stop, {cannot_listen, IPAddress, Port, Reason}} - end. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state{sock=LSock, on_shutdown = {M,F,A}, label=Label}) -> - {ok, {IPAddress, Port}} = inet:sockname(LSock), - gen_tcp:close(LSock), - error_logger:info_msg("stopped ~s on ~s:~p~n", - [Label, inet_parse:ntoa(IPAddress), Port]), - apply(M, F, A ++ [IPAddress, Port]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl deleted file mode 100644 index 5c6c0193..00000000 --- a/src/tcp_listener_sup.erl +++ /dev/null @@ -1,78 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(tcp_listener_sup). - --behaviour(supervisor). - --export([start_link/7, start_link/8]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/7 :: (_,_,_,_,_,_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). --spec(start_link/8 :: - (_,_,_,_,_,_,_,_) -> 'ignore' | {'error',_} | {'ok',pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, Label) -> - start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, 1, Label). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label) -> - supervisor:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}). - -init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}) -> - %% This is gross. The tcp_listener needs to know about the - %% tcp_acceptor_sup, and the only way I can think of accomplishing - %% that without jumping through hoops is to register the - %% tcp_acceptor_sup. - Name = rabbit_misc:tcp_name(tcp_acceptor_sup, IPAddress, Port), - {ok, {{one_for_all, 10, 10}, - [{tcp_acceptor_sup, {tcp_acceptor_sup, start_link, - [Name, AcceptCallback]}, - transient, infinity, supervisor, [tcp_acceptor_sup]}, - {tcp_listener, {tcp_listener, start_link, - [IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, Name, - OnStartup, OnShutdown, Label]}, - transient, 16#ffffffff, worker, [tcp_listener]}]}}. diff --git a/src/test_sup.erl b/src/test_sup.erl deleted file mode 100644 index d83edbf8..00000000 --- a/src/test_sup.erl +++ /dev/null @@ -1,105 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(test_sup). - --behaviour(supervisor2). - --export([test_supervisor_delayed_restart/0, - init/1, start_child/0]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_child/0 :: () -> {'ok',pid()}). --spec(test_supervisor_delayed_restart/0 :: () -> 'passed'). - --endif. - -%%---------------------------------------------------------------------------- - -test_supervisor_delayed_restart() -> - passed = with_sup(simple_one_for_one_terminate, - fun (SupPid) -> - {ok, _ChildPid} = - supervisor2:start_child(SupPid, []), - test_supervisor_delayed_restart(SupPid) - end), - passed = with_sup(one_for_one, fun test_supervisor_delayed_restart/1). - -test_supervisor_delayed_restart(SupPid) -> - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(10), - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(10), - timeout = ping_child(SupPid), - timer:sleep(1010), - ok = ping_child(SupPid), - passed. - -with_sup(RestartStrategy, Fun) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, [RestartStrategy]), - Res = Fun(SupPid), - exit(SupPid, shutdown), - rabbit_misc:unlink_and_capture_exit(SupPid), - Res. - -init([RestartStrategy]) -> - {ok, {{RestartStrategy, 1, 1}, - [{test, {test_sup, start_child, []}, {permanent, 1}, - 16#ffffffff, worker, [test_sup]}]}}. - -start_child() -> - {ok, proc_lib:spawn_link(fun run_child/0)}. - -ping_child(SupPid) -> - Ref = make_ref(), - get_child_pid(SupPid) ! {ping, Ref, self()}, - receive {pong, Ref} -> ok - after 1000 -> timeout - end. - -exit_child(SupPid) -> - true = exit(get_child_pid(SupPid), abnormal), - ok. - -get_child_pid(SupPid) -> - [{_Id, ChildPid, worker, [test_sup]}] = - supervisor2:which_children(SupPid), - ChildPid. - -run_child() -> - receive {ping, Ref, Pid} -> Pid ! {pong, Ref}, - run_child() - end. diff --git a/src/worker_pool.erl b/src/worker_pool.erl deleted file mode 100644 index 071dda8c..00000000 --- a/src/worker_pool.erl +++ /dev/null @@ -1,158 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(worker_pool). - -%% Generic worker pool manager. -%% -%% Supports nested submission of jobs (nested jobs always run -%% immediately in current worker process). -%% -%% Possible future enhancements: -%% -%% 1. Allow priorities (basically, change the pending queue to a -%% priority_queue). - --behaviour(gen_server2). - --export([start_link/0, submit/1, submit_async/1, idle/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --record(state, { available, pending }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(submit/1 :: (fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/1 :: - (fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). - --spec(idle/1 :: (_) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], - [{timeout, infinity}]). - -submit(Fun) -> - case get(worker_pool_worker) of - true -> worker_pool_worker:run(Fun); - _ -> Pid = gen_server2:call(?SERVER, next_free, infinity), - worker_pool_worker:submit(Pid, Fun) - end. - -submit_async(Fun) -> - gen_server2:cast(?SERVER, {run_async, Fun}). - -idle(WId) -> - gen_server2:cast(?SERVER, {idle, WId}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state { pending = queue:new(), available = queue:new() }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(next_free, From, State = #state { available = Avail, - pending = Pending }) -> - case queue:out(Avail) of - {empty, _Avail} -> - {noreply, - State #state { pending = queue:in({next_free, From}, Pending) }, - hibernate}; - {{value, WId}, Avail1} -> - {reply, get_worker_pid(WId), State #state { available = Avail1 }, - hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({idle, WId}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, case queue:out(Pending) of - {empty, _Pending} -> - State #state { available = queue:in(WId, Avail) }; - {{value, {next_free, From}}, Pending1} -> - gen_server2:reply(From, get_worker_pid(WId)), - State #state { pending = Pending1 }; - {{value, {run_async, Fun}}, Pending1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { pending = Pending1 } - end, hibernate}; - -handle_cast({run_async, Fun}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, - case queue:out(Avail) of - {empty, _Avail} -> - State #state { pending = queue:in({run_async, Fun}, Pending)}; - {{value, WId}, Avail1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { available = Avail1 } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. - -%%---------------------------------------------------------------------------- - -get_worker_pid(WId) -> - [{WId, Pid, _Type, _Modules} | _] = - lists:dropwhile(fun ({Id, _Pid, _Type, _Modules}) - when Id =:= WId -> false; - (_) -> true - end, - supervisor:which_children(worker_pool_sup)), - Pid. diff --git a/src/worker_pool_sup.erl b/src/worker_pool_sup.erl deleted file mode 100644 index 3c5b8bf6..00000000 --- a/src/worker_pool_sup.erl +++ /dev/null @@ -1,67 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% - --module(worker_pool_sup). - --behaviour(supervisor). - --export([start_link/0, start_link/1]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link() -> - start_link(erlang:system_info(schedulers)). - -start_link(WCount) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [WCount]). - -%%---------------------------------------------------------------------------- - -init([WCount]) -> - {ok, {{one_for_one, 10, 10}, - [{worker_pool, {worker_pool, start_link, []}, transient, - 16#ffffffff, worker, [worker_pool]} | - [{N, {worker_pool_worker, start_link, [N]}, transient, 16#ffffffff, - worker, [worker_pool_worker]} || N <- lists:seq(1, WCount)]]}}. -- cgit v1.2.1 From 591199daa9a5d346e17f1f5053d4696edd096ff7 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 7 Dec 2010 23:31:31 +0000 Subject: make confirm timeout configurable --- src/rabbit_channel.erl | 40 +++++++++++++++++----------------------- 1 file changed, 17 insertions(+), 23 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 0c8ad00a..5bf545a1 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -49,7 +49,7 @@ uncommitted_ack_q, unacked_message_q, username, virtual_host, most_recently_declared_queue, consumer_mapping, blocking, queue_collector_pid, stats_timer, - confirm_enabled, publish_seqno, confirm_multiple, confirm_tref, + confirm_enabled, publish_seqno, confirm_duration, confirm_tref, held_confirms, unconfirmed, queues_for_msg}). -define(MAX_PERMISSION_CACHE_SIZE, 12). @@ -72,8 +72,6 @@ -define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). --define(FLUSH_MULTIPLE_ACKS_INTERVAL, 1000). - %%---------------------------------------------------------------------------- -ifdef(use_specs). @@ -192,7 +190,7 @@ init([Channel, ReaderPid, WriterPid, Username, VHost, CollectorPid, stats_timer = StatsTimer, confirm_enabled = false, publish_seqno = 0, - confirm_multiple = false, + confirm_duration = 0, held_confirms = gb_sets:new(), unconfirmed = gb_sets:new(), queues_for_msg = dict:new()}, @@ -459,7 +457,7 @@ send_or_enqueue_ack(undefined, _QPid, State) -> State; send_or_enqueue_ack(_MsgSeqNo, _QPid, State = #ch{confirm_enabled = false}) -> State; -send_or_enqueue_ack(MsgSeqNo, QPid, State = #ch{confirm_multiple = false}) -> +send_or_enqueue_ack(MsgSeqNo, QPid, State = #ch{confirm_duration = 0}) -> do_if_unconfirmed(MsgSeqNo, QPid, fun(MSN, State1 = #ch{writer_pid = WriterPid}) -> ok = rabbit_writer:send_command( @@ -467,11 +465,12 @@ send_or_enqueue_ack(MsgSeqNo, QPid, State = #ch{confirm_multiple = false}) -> delivery_tag = MSN}), State1 end, State); -send_or_enqueue_ack(MsgSeqNo, QPid, State = #ch{confirm_multiple = true}) -> +send_or_enqueue_ack(MsgSeqNo, QPid, State = #ch{confirm_duration = CD}) -> do_if_unconfirmed(MsgSeqNo, QPid, fun(MSN, State1 = #ch{held_confirms = As}) -> start_confirm_timer( - State1#ch{held_confirms = gb_sets:add(MSN, As)}) + State1#ch{held_confirms = gb_sets:add(MSN, As)}, + CD) end, State). do_if_unconfirmed(MsgSeqNo, QPid, ConfirmFun, @@ -978,20 +977,15 @@ handle_method(#'confirm.select'{}, _, #ch{transaction_id = TxId}) rabbit_misc:protocol_error( precondition_failed, "cannot switch from tx to confirm mode", []); -handle_method(#'confirm.select'{multiple = Multiple, nowait = NoWait}, - _, State = #ch{confirm_enabled = false}) -> - return_ok(State#ch{confirm_enabled = true, confirm_multiple = Multiple}, +handle_method(#'confirm.select'{batch_duration = Duration, nowait = NoWait}, + _, State = #ch{confirm_tref = TRef}) -> + State1 = case TRef =:= undefined of + true -> State; + false -> flush_multiple(State) + end, + return_ok(State1#ch{confirm_enabled = true, confirm_duration = Duration}, NoWait, #'confirm.select_ok'{}); -handle_method(#'confirm.select'{multiple = Multiple, nowait = NoWait}, - _, State = #ch{confirm_enabled = true, - confirm_multiple = Multiple}) -> - return_ok(State, NoWait, #'confirm.select_ok'{}); - -handle_method(#'confirm.select'{}, _, #ch{confirm_enabled = true}) -> - rabbit_misc:protocol_error( - precondition_failed, "cannot change confirm_multiple setting", []); - handle_method(#'channel.flow'{active = true}, _, State = #ch{limiter_pid = LimiterPid}) -> LimiterPid1 = case rabbit_limiter:unblock(LimiterPid) of @@ -1344,11 +1338,11 @@ erase_queue_stats(QPid) -> [erase({queue_exchange_stats, QX}) || {{queue_exchange_stats, QX = {QPid0, _}}, _} <- get(), QPid =:= QPid0]. -start_confirm_timer(State = #ch{confirm_tref = undefined}) -> - {ok, TRef} = timer:apply_after(?FLUSH_MULTIPLE_ACKS_INTERVAL, - ?MODULE, flush_multiple_acks, [self()]), +start_confirm_timer(State = #ch{confirm_tref = undefined}, Duration) -> + {ok, TRef} = timer:apply_after(Duration, ?MODULE, + flush_multiple_acks, [self()]), State#ch{confirm_tref = TRef}; -start_confirm_timer(State) -> +start_confirm_timer(State, _) -> State. stop_confirm_timer(State = #ch{confirm_tref = undefined}) -> -- cgit v1.2.1 From 20657361da97b619a8ccfa56acc315c64d2e65da Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Wed, 8 Dec 2010 12:46:28 +0000 Subject: remove confirm_enabled field from channel status --- src/rabbit_channel.erl | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 5bf545a1..2b779bd6 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -49,7 +49,7 @@ uncommitted_ack_q, unacked_message_q, username, virtual_host, most_recently_declared_queue, consumer_mapping, blocking, queue_collector_pid, stats_timer, - confirm_enabled, publish_seqno, confirm_duration, confirm_tref, + publish_seqno, confirm_duration, confirm_tref, held_confirms, unconfirmed, queues_for_msg}). -define(MAX_PERMISSION_CACHE_SIZE, 12). @@ -188,9 +188,8 @@ init([Channel, ReaderPid, WriterPid, Username, VHost, CollectorPid, blocking = dict:new(), queue_collector_pid = CollectorPid, stats_timer = StatsTimer, - confirm_enabled = false, publish_seqno = 0, - confirm_duration = 0, + confirm_duration = none, held_confirms = gb_sets:new(), unconfirmed = gb_sets:new(), queues_for_msg = dict:new()}, @@ -455,7 +454,7 @@ queue_blocked(QPid, State = #ch{blocking = Blocking}) -> send_or_enqueue_ack(undefined, _QPid, State) -> State; -send_or_enqueue_ack(_MsgSeqNo, _QPid, State = #ch{confirm_enabled = false}) -> +send_or_enqueue_ack(_MsgSeqNo, _QPid, State = #ch{confirm_duration = none}) -> State; send_or_enqueue_ack(MsgSeqNo, QPid, State = #ch{confirm_duration = 0}) -> do_if_unconfirmed(MsgSeqNo, QPid, @@ -524,7 +523,7 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, immediate = Immediate}, Content, State = #ch{virtual_host = VHostPath, transaction_id = TxnKey, - confirm_enabled = ConfirmEnabled}) -> + confirm_duration = Duration}) -> ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), check_write_permitted(ExchangeName, State), Exchange = rabbit_exchange:lookup_or_die(ExchangeName), @@ -533,7 +532,7 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), IsPersistent = is_message_persistent(DecodedContent), {MsgSeqNo, State1} - = case ConfirmEnabled of + = case Duration =/= none of false -> {undefined, State}; true -> SeqNo = State#ch.publish_seqno, {SeqNo, @@ -948,7 +947,8 @@ handle_method(#'queue.purge'{queue = QueueNameBin, #'queue.purge_ok'{message_count = PurgedMessageCount}); -handle_method(#'tx.select'{}, _, #ch{confirm_enabled = true}) -> +handle_method(#'tx.select'{}, _, #ch{confirm_duration = Duration}) + when Duration =/= none -> rabbit_misc:protocol_error( precondition_failed, "cannot switch from confirm to tx mode", []); @@ -983,7 +983,7 @@ handle_method(#'confirm.select'{batch_duration = Duration, nowait = NoWait}, true -> State; false -> flush_multiple(State) end, - return_ok(State1#ch{confirm_enabled = true, confirm_duration = Duration}, + return_ok(State1#ch{confirm_duration = Duration}, NoWait, #'confirm.select_ok'{}); handle_method(#'channel.flow'{active = true}, _, -- cgit v1.2.1 From b8c1c445ff4dd26c8827bcfeb25a4c4628af3fb8 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Wed, 8 Dec 2010 12:57:23 +0000 Subject: cosmetic --- src/rabbit_channel.erl | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 2b779bd6..4957d777 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -532,13 +532,13 @@ handle_method(#'basic.publish'{exchange = ExchangeNameBin, DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), IsPersistent = is_message_persistent(DecodedContent), {MsgSeqNo, State1} - = case Duration =/= none of - false -> {undefined, State}; - true -> SeqNo = State#ch.publish_seqno, - {SeqNo, - State#ch{publish_seqno = SeqNo + 1, - unconfirmed = - gb_sets:add(SeqNo, State#ch.unconfirmed)}} + = case Duration of + none -> {undefined, State}; + _ -> SeqNo = State#ch.publish_seqno, + {SeqNo, + State#ch{publish_seqno = SeqNo + 1, + unconfirmed = + gb_sets:add(SeqNo, State#ch.unconfirmed)}} end, Message = #basic_message{exchange_name = ExchangeName, routing_key = RoutingKey, -- cgit v1.2.1 From fcc22b3d04724e61eba55f2068c6ed12102e5578 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 13:46:05 -0800 Subject: Redoing changes, one module at a time. First, file_handle_cache, which is quite trivial. --- src/file_handle_cache.erl | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl index 6a948d49..5e86d8aa 100644 --- a/src/file_handle_cache.erl +++ b/src/file_handle_cache.erl @@ -923,10 +923,10 @@ handle_cast({transfer, FromPid, ToPid}, State) -> ok = track_client(ToPid, State#fhc_state.clients), {noreply, process_pending( update_counts(obtain, ToPid, +1, - update_counts(obtain, FromPid, -1, State)))}; + update_counts(obtain, FromPid, -1, State)))}. -handle_cast(check_counts, State) -> - {noreply, maybe_reduce(State #fhc_state { timer_ref = undefined })}. +handle_info(check_counts, State) -> + {noreply, maybe_reduce(State #fhc_state { timer_ref = undefined })}; handle_info({'DOWN', _MRef, process, Pid, _Reason}, State = #fhc_state { elders = Elders, @@ -1119,9 +1119,9 @@ reduce(State = #fhc_state { open_pending = OpenPending, end end, case TRef of - undefined -> {ok, TRef1} = timer:apply_after( - ?FILE_HANDLES_CHECK_INTERVAL, - gen_server, cast, [?SERVER, check_counts]), + undefined -> TRef1 = erlang:send_after( + ?FILE_HANDLES_CHECK_INTERVAL, ?SERVER, + check_counts), State #fhc_state { timer_ref = TRef1 }; _ -> State end. -- cgit v1.2.1 From 88fc8b1ccdc53ee217084cd1eb8ef887a1bd3da0 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 14:06:05 -0800 Subject: Updated rabbit_channel; trivial plus epsilon. --- src/rabbit_channel.erl | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 4e9bd4b1..fbb0bf61 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -36,7 +36,7 @@ -behaviour(gen_server2). -export([start_link/7, do/2, do/3, flush/1, shutdown/1]). --export([send_command/2, deliver/4, flushed/2, confirm/2, flush_confirms/1]). +-export([send_command/2, deliver/4, flushed/2, confirm/2]). -export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). -export([emit_stats/1]). @@ -98,7 +98,6 @@ -> 'ok'). -spec(flushed/2 :: (pid(), pid()) -> 'ok'). -spec(confirm/2 ::(pid(), non_neg_integer()) -> 'ok'). --spec(flush_confirms/1 :: (pid()) -> 'ok'). -spec(list/0 :: () -> [pid()]). -spec(info_keys/0 :: () -> rabbit_types:info_keys()). -spec(info/1 :: (pid()) -> rabbit_types:infos()). @@ -140,9 +139,6 @@ flushed(Pid, QPid) -> confirm(Pid, MsgSeqNo) -> gen_server2:cast(Pid, {confirm, MsgSeqNo, self()}). -flush_confirms(Pid) -> - gen_server2:cast(Pid, flush_confirms). - list() -> pg_local:get_members(rabbit_channels). @@ -292,12 +288,12 @@ handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, hibernate}; -handle_cast(flush_confirms, State) -> - {noreply, internal_flush_confirms(State)}; - handle_cast({confirm, MsgSeqNo, From}, State) -> {noreply, confirm(MsgSeqNo, From, State)}. +handle_info(flush_confirms, State) -> + {noreply, internal_flush_confirms(State)}; + handle_info({'DOWN', _MRef, process, QPid, _Reason}, State = #ch{queues_for_msg = QFM}) -> State1 = dict:fold( @@ -1252,8 +1248,7 @@ lock_message(false, _MsgStruct, State) -> State. start_confirm_timer(State = #ch{confirm_tref = undefined}) -> - {ok, TRef} = timer:apply_after(?FLUSH_CONFIRMS_INTERVAL, - ?MODULE, flush_confirms, [self()]), + TRef = erlang:send_after(?FLUSH_CONFIRMS_INTERVAL, self(), flush_confirms), State#ch{confirm_tref = TRef}; start_confirm_timer(State) -> State. @@ -1261,7 +1256,7 @@ start_confirm_timer(State) -> stop_confirm_timer(State = #ch{confirm_tref = undefined}) -> State; stop_confirm_timer(State = #ch{confirm_tref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), + _TimeLeft = erlang:cancel_timer(TRef), State#ch{confirm_tref = undefined}. internal_flush_confirms(State = #ch{writer_pid = WriterPid, -- cgit v1.2.1 From bd8a318e362635cf0f354986e25573f860293adb Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 14:40:06 -0800 Subject: Updated rabbit_msg_store, converting sync message to handle_info --- src/rabbit_msg_store.erl | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index e8b4e8e2..82ae0470 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -38,11 +38,12 @@ client_ref/1, write/3, read/2, contains/2, remove/2, release/2, sync/3]). --export([sync/1, set_maximum_since_use/2, +-export([set_maximum_since_use/2, has_readers/2, combine_files/3, delete_file/2]). %% internal -export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_call/3, prioritise_cast/2]). + terminate/2, code_change/3, prioritise_call/3, prioritise_cast/2, + prioritise_info/2]). %%---------------------------------------------------------------------------- @@ -164,7 +165,6 @@ -spec(sync/3 :: ([rabbit_guid:guid()], fun (() -> any()), client_msstate()) -> 'ok'). --spec(sync/1 :: (server()) -> 'ok'). -spec(set_maximum_since_use/2 :: (server(), non_neg_integer()) -> 'ok'). -spec(has_readers/2 :: (non_neg_integer(), gc_state()) -> boolean()). -spec(combine_files/3 :: (non_neg_integer(), non_neg_integer(), gc_state()) -> @@ -404,9 +404,6 @@ release([], _CState) -> ok; release(Guids, CState) -> server_cast(CState, {release, Guids}). sync(Guids, K, CState) -> server_cast(CState, {sync, Guids, K}). -sync(Server) -> - gen_server2:cast(Server, sync). - set_maximum_since_use(Server, Age) -> gen_server2:cast(Server, {set_maximum_since_use, Age}). @@ -639,13 +636,18 @@ prioritise_call(Msg, _From, _State) -> prioritise_cast(Msg, _State) -> case Msg of - sync -> 8; {combine_files, _Source, _Destination, _Reclaimed} -> 8; {delete_file, _File, _Reclaimed} -> 8; {set_maximum_since_use, _Age} -> 8; _ -> 0 end. +prioritise_info(Msg, _State) -> + case Msg of + sync -> 8; + _ -> 0 + end. + handle_call(successfully_recovered_state, _From, State) -> reply(State #msstate.successfully_recovered, State); @@ -762,9 +764,6 @@ handle_cast({sync, Guids, K}, true -> noreply(State #msstate { on_sync = [K | Syncs] }) end; -handle_cast(sync, State) -> - noreply(internal_sync(State)); - handle_cast({combine_files, Source, Destination, Reclaimed}, State = #msstate { sum_file_size = SumFileSize, file_handles_ets = FileHandlesEts, @@ -787,6 +786,9 @@ handle_cast({set_maximum_since_use, Age}, State) -> ok = file_handle_cache:set_maximum_since_use(Age), noreply(State). +handle_info(sync, State) -> + noreply(internal_sync(State)); + handle_info(timeout, State) -> noreply(internal_sync(State)); @@ -852,13 +854,13 @@ next_state(State = #msstate { on_sync = Syncs, end. start_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, sync, [self()]), + TRef = erlang:send_after(?SYNC_INTERVAL, self(), sync), State #msstate { sync_timer_ref = TRef }. stop_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> State; stop_sync_timer(State = #msstate { sync_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), + _TimeLeft = erlang:cancel_timer(TRef), State #msstate { sync_timer_ref = undefined }. internal_sync(State = #msstate { current_file_handle = CurHdl, -- cgit v1.2.1 From a020f4852b2cdf51bdec5bfb70cd2afa19a0e7f2 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 14:50:00 -0800 Subject: Updated supervisor2 --- src/supervisor2.erl | 30 +++++++++++++----------------- 1 file changed, 13 insertions(+), 17 deletions(-) diff --git a/src/supervisor2.erl b/src/supervisor2.erl index 46bab31d..25d7b955 100644 --- a/src/supervisor2.erl +++ b/src/supervisor2.erl @@ -73,7 +73,6 @@ %% Internal exports -export([init/1, handle_call/3, handle_info/2, terminate/2, code_change/3]). -export([handle_cast/2]). --export([delayed_restart/2]). -define(DICT, dict). @@ -154,9 +153,6 @@ check_childspecs(ChildSpecs) when is_list(ChildSpecs) -> end; check_childspecs(X) -> {error, {badarg, X}}. -delayed_restart(Supervisor, RestartDetails) -> - gen_server:cast(Supervisor, {delayed_restart, RestartDetails}). - %%% --------------------------------------------------- %%% %%% Initialize the supervisor. @@ -353,11 +349,19 @@ handle_call(which_children, _From, State) -> {reply, Resp, State}. -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) +%%% Hopefully cause a function-clause as there is no API function +%%% that utilizes cast. +handle_cast(null, State) -> + error_logger:error_msg("ERROR: Supervisor received cast-message 'null'~n", + []), + + {noreply, State}. + +handle_info({delayed_restart, {RestartType, Reason, Child}}, State) when ?is_simple(State) -> {ok, NState} = do_restart(RestartType, Reason, Child, State), {noreply, NState}; -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) -> +handle_info({delayed_restart, {RestartType, Reason, Child}}, State) -> case get_child(Child#child.name, State) of {value, Child} -> {ok, NState} = do_restart(RestartType, Reason, Child, State), @@ -366,14 +370,6 @@ handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) -> {noreply, State} end; -%%% Hopefully cause a function-clause as there is no API function -%%% that utilizes cast. -handle_cast(null, State) -> - error_logger:error_msg("ERROR: Supervisor received cast-message 'null'~n", - []), - - {noreply, State}. - %% %% Take care of terminated children. %% @@ -536,9 +532,9 @@ do_restart({RestartType, Delay}, Reason, Child, State) -> {ok, NState} -> {ok, NState}; {terminate, NState} -> - {ok, _TRef} = timer:apply_after( - trunc(Delay*1000), ?MODULE, delayed_restart, - [self(), {{RestartType, Delay}, Reason, Child}]), + _TRef = erlang:send_after( + trunc(Delay*1000), self(), + {delayed_restart, {{RestartType, Delay}, Reason, Child}}), {ok, NState} end; do_restart(permanent, Reason, Child, State) -> -- cgit v1.2.1 From 14b3146175eb3327dafdd79869b8966d3c3e8f7b Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 15:15:06 -0800 Subject: Converted maybe_expire to _info, and sent via erlang:send_after. --- src/rabbit_amqqueue.erl | 6 +----- src/rabbit_amqqueue_process.erl | 25 ++++++++++++++----------- 2 files changed, 15 insertions(+), 16 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 775c631d..79e052ac 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -36,7 +36,7 @@ maybe_run_queue_via_backing_queue/2, maybe_run_queue_via_backing_queue_async/2, update_ram_duration/1, set_ram_duration_target/2, - set_maximum_since_use/2, maybe_expire/1, drop_expired/1]). + set_maximum_since_use/2, drop_expired/1]). -export([pseudo_queue/2]). -export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, check_exclusive_access/2, with_exclusive_access_or_die/3, @@ -158,7 +158,6 @@ -spec(update_ram_duration/1 :: (pid()) -> 'ok'). -spec(set_ram_duration_target/2 :: (pid(), number() | 'infinity') -> 'ok'). -spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). --spec(maybe_expire/1 :: (pid()) -> 'ok'). -spec(on_node_down/1 :: (node()) -> 'ok'). -spec(pseudo_queue/2 :: (name(), pid()) -> rabbit_types:amqqueue()). @@ -473,9 +472,6 @@ set_ram_duration_target(QPid, Duration) -> set_maximum_since_use(QPid, Age) -> gen_server2:cast(QPid, {set_maximum_since_use, Age}). -maybe_expire(QPid) -> - gen_server2:cast(QPid, maybe_expire). - drop_expired(QPid) -> gen_server2:cast(QPid, drop_expired). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 78bb6835..a24173ad 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -259,7 +259,7 @@ stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> stop_expiry_timer(State = #q{expiry_timer_ref = undefined}) -> State; stop_expiry_timer(State = #q{expiry_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), + _TimeLeft = erlang:cancel_timer(TRef), State#q{expiry_timer_ref = undefined}. %% We wish to expire only when there are no consumers *and* the expiry @@ -271,8 +271,7 @@ ensure_expiry_timer(State = #q{expires = Expires}) -> case is_unused(State) of true -> NewState = stop_expiry_timer(State), - {ok, TRef} = timer:apply_after( - Expires, rabbit_amqqueue, maybe_expire, [self()]), + TRef = erlang:send_after(Expires, self(), maybe_expire), NewState#q{expiry_timer_ref = TRef}; false -> State @@ -759,7 +758,11 @@ prioritise_cast(Msg, _State) -> prioritise_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, #q{q = #amqqueue{exclusive_owner = DownPid}}) -> 8; -prioritise_info(_Msg, _State) -> 0. +prioritise_info(Msg, _State) -> + case Msg of + maybe_expire -> 8; + _ -> 0 + end. handle_call({init, Recover}, From, State = #q{q = #amqqueue{exclusive_owner = none}}) -> @@ -1073,13 +1076,6 @@ handle_cast({set_maximum_since_use, Age}, State) -> ok = file_handle_cache:set_maximum_since_use(Age), noreply(State); -handle_cast(maybe_expire, State) -> - case is_unused(State) of - true -> ?LOGDEBUG("Queue lease expired for ~p~n", [State#q.q]), - {stop, normal, State}; - false -> noreply(ensure_expiry_timer(State)) - end; - handle_cast(drop_expired, State) -> noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); @@ -1090,6 +1086,13 @@ handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> assert_invariant(State1), {noreply, State1, hibernate}. +handle_info(maybe_expire, State) -> + case is_unused(State) of + true -> ?LOGDEBUG("Queue lease expired for ~p~n", [State#q.q]), + {stop, normal, State}; + false -> noreply(ensure_expiry_timer(State)) + end; + handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> %% Exclusively owned queues must disappear with their owner. In -- cgit v1.2.1 From 59ea1f84610f950eafed0650a46a0d397755d5ab Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 15:26:16 -0800 Subject: Updated update_ram_duration too. --- src/rabbit_amqqueue.erl | 9 ++------- src/rabbit_amqqueue_process.erl | 28 +++++++++++++--------------- 2 files changed, 15 insertions(+), 22 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 79e052ac..d1599139 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -34,9 +34,8 @@ -export([start/0, stop/0, declare/5, delete_immediately/1, delete/3, purge/1]). -export([internal_declare/2, internal_delete/1, maybe_run_queue_via_backing_queue/2, - maybe_run_queue_via_backing_queue_async/2, - update_ram_duration/1, set_ram_duration_target/2, - set_maximum_since_use/2, drop_expired/1]). + maybe_run_queue_via_backing_queue_async/2, set_ram_duration_target/2, + set_maximum_since_use/2, drop_expired/1]). -export([pseudo_queue/2]). -export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, check_exclusive_access/2, with_exclusive_access_or_die/3, @@ -155,7 +154,6 @@ (pid(), (fun ((A) -> A | {any(), A}))) -> 'ok'). -spec(maybe_run_queue_via_backing_queue_async/2 :: (pid(), (fun ((A) -> A | {any(), A}))) -> 'ok'). --spec(update_ram_duration/1 :: (pid()) -> 'ok'). -spec(set_ram_duration_target/2 :: (pid(), number() | 'infinity') -> 'ok'). -spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). -spec(on_node_down/1 :: (node()) -> 'ok'). @@ -463,9 +461,6 @@ maybe_run_queue_via_backing_queue(QPid, Fun) -> maybe_run_queue_via_backing_queue_async(QPid, Fun) -> gen_server2:cast(QPid, {maybe_run_queue_via_backing_queue, Fun}). -update_ram_duration(QPid) -> - gen_server2:cast(QPid, update_ram_duration). - set_ram_duration_target(QPid, Duration) -> gen_server2:cast(QPid, {set_ram_duration_target, Duration}). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index a24173ad..91f2f751 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -238,10 +238,8 @@ stop_sync_timer(State = #q{sync_timer_ref = TRef}) -> State#q{sync_timer_ref = undefined}. ensure_rate_timer(State = #q{rate_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), + TRef = erlang:send_after( + ?RAM_DURATION_UPDATE_INTERVAL, self(), update_ram_duration), State#q{rate_timer_ref = TRef}; ensure_rate_timer(State = #q{rate_timer_ref = just_measured}) -> State#q{rate_timer_ref = undefined}; @@ -253,7 +251,7 @@ stop_rate_timer(State = #q{rate_timer_ref = undefined}) -> stop_rate_timer(State = #q{rate_timer_ref = just_measured}) -> State#q{rate_timer_ref = undefined}; stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), + _TimeLeft = erlang:cancel_timer(TRef), State#q{rate_timer_ref = undefined}. stop_expiry_timer(State = #q{expiry_timer_ref = undefined}) -> @@ -742,7 +740,6 @@ prioritise_call(Msg, _From, _State) -> prioritise_cast(Msg, _State) -> case Msg of - update_ram_duration -> 8; delete_immediately -> 8; {set_ram_duration_target, _Duration} -> 8; {set_maximum_since_use, _Age} -> 8; @@ -760,6 +757,7 @@ prioritise_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, #q{q = #amqqueue{exclusive_owner = DownPid}}) -> 8; prioritise_info(Msg, _State) -> case Msg of + update_ram_duration -> 8; maybe_expire -> 8; _ -> 0 end. @@ -1058,15 +1056,6 @@ handle_cast({flush, ChPid}, State) -> ok = rabbit_channel:flushed(ChPid, self()), noreply(State); -handle_cast(update_ram_duration, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State#q{rate_timer_ref = just_measured, - backing_queue_state = BQS2}); - handle_cast({set_ram_duration_target, Duration}, State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> BQS1 = BQ:set_ram_duration_target(Duration, BQS), @@ -1086,6 +1075,15 @@ handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> assert_invariant(State1), {noreply, State1, hibernate}. +handle_info(update_ram_duration, State = #q{backing_queue = BQ, + backing_queue_state = BQS}) -> + {RamDuration, BQS1} = BQ:ram_duration(BQS), + DesiredDuration = + rabbit_memory_monitor:report_ram_duration(self(), RamDuration), + BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), + noreply(State#q{rate_timer_ref = just_measured, + backing_queue_state = BQS2}); + handle_info(maybe_expire, State) -> case is_unused(State) of true -> ?LOGDEBUG("Queue lease expired for ~p~n", [State#q.q]), -- cgit v1.2.1 From f7b87b41d9889d9be6ec3bce24a783f8ad1cf314 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 15:36:15 -0800 Subject: Same for drop_expired. --- src/rabbit_amqqueue.erl | 5 +---- src/rabbit_amqqueue_process.erl | 12 +++++------- 2 files changed, 6 insertions(+), 11 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index d1599139..0ad13b05 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -35,7 +35,7 @@ -export([internal_declare/2, internal_delete/1, maybe_run_queue_via_backing_queue/2, maybe_run_queue_via_backing_queue_async/2, set_ram_duration_target/2, - set_maximum_since_use/2, drop_expired/1]). + set_maximum_since_use/2]). -export([pseudo_queue/2]). -export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, check_exclusive_access/2, with_exclusive_access_or_die/3, @@ -467,9 +467,6 @@ set_ram_duration_target(QPid, Duration) -> set_maximum_since_use(QPid, Age) -> gen_server2:cast(QPid, {set_maximum_since_use, Age}). -drop_expired(QPid) -> - gen_server2:cast(QPid, drop_expired). - on_node_down(Node) -> rabbit_binding:process_deletions( lists:foldl( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 91f2f751..2479715a 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -675,8 +675,7 @@ ensure_ttl_timer(State = #q{backing_queue = BQ, when TTL =/= undefined -> case BQ:is_empty(BQS) of true -> State; - false -> TRef = timer:apply_after(TTL, rabbit_amqqueue, drop_expired, - [self()]), + false -> TRef = erlang:send_after(TTL, self(), drop_expired), State#q{ttl_timer_ref = TRef} end; ensure_ttl_timer(State) -> @@ -743,8 +742,6 @@ prioritise_cast(Msg, _State) -> delete_immediately -> 8; {set_ram_duration_target, _Duration} -> 8; {set_maximum_since_use, _Age} -> 8; - maybe_expire -> 8; - drop_expired -> 8; emit_stats -> 7; {ack, _Txn, _MsgIds, _ChPid} -> 7; {reject, _MsgIds, _Requeue, _ChPid} -> 7; @@ -759,6 +756,7 @@ prioritise_info(Msg, _State) -> case Msg of update_ram_duration -> 8; maybe_expire -> 8; + drop_expired -> 8; _ -> 0 end. @@ -1065,9 +1063,6 @@ handle_cast({set_maximum_since_use, Age}, State) -> ok = file_handle_cache:set_maximum_since_use(Age), noreply(State); -handle_cast(drop_expired, State) -> - noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); - handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> %% Do not invoke noreply as it would see no timer and create a new one. emit_stats(State), @@ -1091,6 +1086,9 @@ handle_info(maybe_expire, State) -> false -> noreply(ensure_expiry_timer(State)) end; +handle_info(drop_expired, State) -> + noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); + handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> %% Exclusively owned queues must disappear with their owner. In -- cgit v1.2.1 From b410f3f42c019d982f8137264218b1adce2fa651 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 17:35:31 -0800 Subject: Made emit_stats functions all handle_info, not handle_cast. --- src/rabbit_amqqueue.erl | 5 ++++- src/rabbit_amqqueue_process.erl | 18 +++++++++--------- src/rabbit_channel.erl | 25 +++++++++++++++---------- src/rabbit_reader.erl | 4 ++-- 4 files changed, 30 insertions(+), 22 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 0ad13b05..8a025197 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -365,7 +365,7 @@ consumers_all(VHostPath) -> stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat, infinity). emit_stats(#amqqueue{pid = QPid}) -> - delegate_cast(QPid, emit_stats). + delegate_info(QPid, emit_stats). delete_immediately(#amqqueue{ pid = QPid }) -> gen_server2:cast(QPid, delete_immediately). @@ -507,3 +507,6 @@ delegate_call(Pid, Msg, Timeout) -> delegate_cast(Pid, Msg) -> delegate:invoke(Pid, fun (P) -> gen_server2:cast(P, Msg) end). + +delegate_info(Pid, Msg) -> + delegate:invoke(Pid, fun (P) -> gen_server2:info(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 2479715a..39740fd9 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -742,7 +742,6 @@ prioritise_cast(Msg, _State) -> delete_immediately -> 8; {set_ram_duration_target, _Duration} -> 8; {set_maximum_since_use, _Age} -> 8; - emit_stats -> 7; {ack, _Txn, _MsgIds, _ChPid} -> 7; {reject, _MsgIds, _Requeue, _ChPid} -> 7; {notify_sent, _ChPid} -> 7; @@ -757,6 +756,7 @@ prioritise_info(Msg, _State) -> update_ram_duration -> 8; maybe_expire -> 8; drop_expired -> 8; + emit_stats -> 7; _ -> 0 end. @@ -1061,14 +1061,7 @@ handle_cast({set_ram_duration_target, Duration}, handle_cast({set_maximum_since_use, Age}, State) -> ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> - %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), - State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - assert_invariant(State1), - {noreply, State1, hibernate}. + noreply(State). handle_info(update_ram_duration, State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> @@ -1089,6 +1082,13 @@ handle_info(maybe_expire, State) -> handle_info(drop_expired, State) -> noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); +handle_info(emit_stats, State = #q{stats_timer = StatsTimer}) -> + %% Do not invoke noreply as it would see no timer and create a new one. + emit_stats(State), + State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, + assert_invariant(State1), + {noreply, State1, hibernate}; + handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> %% Exclusively owned queues must disappear with their owner. In diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index fbb0bf61..e950fa18 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -42,7 +42,7 @@ -export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2]). + prioritise_cast/2, prioritise_info/2]). -record(ch, {state, channel, reader_pid, writer_pid, limiter_pid, start_limiter_fun, transaction_id, tx_participants, next_tag, @@ -160,7 +160,7 @@ info_all(Items) -> rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). emit_stats(Pid) -> - gen_server2:cast(Pid, emit_stats). + gen_server2:info(Pid, emit_stats). %%--------------------------------------------------------------------------- @@ -208,8 +208,13 @@ prioritise_call(Msg, _From, _State) -> prioritise_cast(Msg, _State) -> case Msg of - emit_stats -> 7; - _ -> 0 + _ -> 0 + end. + +prioritise_info(Msg, _State) -> + case Msg of + emit_stats -> 7; + _ -> 0 end. handle_call(flush, _From, State) -> @@ -282,18 +287,18 @@ handle_cast({deliver, ConsumerTag, AckRequired, end, State), noreply(State1#ch{next_tag = DeliveryTag + 1}); -handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> - internal_emit_stats(State), - {noreply, - State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - hibernate}; - handle_cast({confirm, MsgSeqNo, From}, State) -> {noreply, confirm(MsgSeqNo, From, State)}. handle_info(flush_confirms, State) -> {noreply, internal_flush_confirms(State)}; +handle_info(emit_stats, State = #ch{stats_timer = StatsTimer}) -> + internal_emit_stats(State), + {noreply, + State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, + hibernate}; + handle_info({'DOWN', _MRef, process, QPid, _Reason}, State = #ch{queues_for_msg = QFM}) -> State1 = dict:fold( diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 4dd150a2..9d9c7096 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -219,7 +219,7 @@ info(Pid, Items) -> end. emit_stats(Pid) -> - gen_server:cast(Pid, emit_stats). + gen_server:info(Pid, emit_stats). conserve_memory(Pid, Conserve) -> Pid ! {conserve_memory, Conserve}, @@ -377,7 +377,7 @@ mainloop(Deb, State = #v1{parent = Parent, sock= Sock, recv_ref = Ref}) -> catch Error -> {error, Error} end), mainloop(Deb, State); - {'$gen_cast', emit_stats} -> + emit_stats -> State1 = internal_emit_stats(State), mainloop(Deb, State1); {system, From, Request} -> -- cgit v1.2.1 From c127a9bf03c841b62e8bcb575bf3c305ae167e9c Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 18:35:34 -0800 Subject: First part of emit_stats refactor. --- src/rabbit_amqqueue_process.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 39740fd9..3baa2d35 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -279,7 +279,7 @@ ensure_stats_timer(State = #q{stats_timer = StatsTimer, q = Q}) -> State#q{stats_timer = rabbit_event:ensure_stats_timer( StatsTimer, - fun() -> rabbit_amqqueue:emit_stats(Q) end)}. + fun() -> erlang:send(Q, emit_stats) end)}. assert_invariant(#q{active_consumers = AC, backing_queue = BQ, backing_queue_state = BQS}) -> -- cgit v1.2.1 From 85b765ff390bbafc95bd1c14c5af66d67beb3c2e Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 18:53:23 -0800 Subject: Undoing earlier mistake. Backed out changeset 87e2865d3b9d --- src/rabbit_amqqueue_process.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 3baa2d35..39740fd9 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -279,7 +279,7 @@ ensure_stats_timer(State = #q{stats_timer = StatsTimer, q = Q}) -> State#q{stats_timer = rabbit_event:ensure_stats_timer( StatsTimer, - fun() -> erlang:send(Q, emit_stats) end)}. + fun() -> rabbit_amqqueue:emit_stats(Q) end)}. assert_invariant(#q{active_consumers = AC, backing_queue = BQ, backing_queue_state = BQS}) -> -- cgit v1.2.1 From b136d9d38ca07b16d621f54cdf09a4c5f2e5f7b3 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 10 Dec 2010 19:15:38 -0800 Subject: Backing out broken changes. Backed out changeset 965e755d17ba --- src/rabbit_amqqueue.erl | 5 +---- src/rabbit_amqqueue_process.erl | 18 +++++++++--------- src/rabbit_channel.erl | 25 ++++++++++--------------- src/rabbit_reader.erl | 4 ++-- 4 files changed, 22 insertions(+), 30 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 8a025197..0ad13b05 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -365,7 +365,7 @@ consumers_all(VHostPath) -> stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat, infinity). emit_stats(#amqqueue{pid = QPid}) -> - delegate_info(QPid, emit_stats). + delegate_cast(QPid, emit_stats). delete_immediately(#amqqueue{ pid = QPid }) -> gen_server2:cast(QPid, delete_immediately). @@ -507,6 +507,3 @@ delegate_call(Pid, Msg, Timeout) -> delegate_cast(Pid, Msg) -> delegate:invoke(Pid, fun (P) -> gen_server2:cast(P, Msg) end). - -delegate_info(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> gen_server2:info(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 39740fd9..2479715a 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -742,6 +742,7 @@ prioritise_cast(Msg, _State) -> delete_immediately -> 8; {set_ram_duration_target, _Duration} -> 8; {set_maximum_since_use, _Age} -> 8; + emit_stats -> 7; {ack, _Txn, _MsgIds, _ChPid} -> 7; {reject, _MsgIds, _Requeue, _ChPid} -> 7; {notify_sent, _ChPid} -> 7; @@ -756,7 +757,6 @@ prioritise_info(Msg, _State) -> update_ram_duration -> 8; maybe_expire -> 8; drop_expired -> 8; - emit_stats -> 7; _ -> 0 end. @@ -1061,7 +1061,14 @@ handle_cast({set_ram_duration_target, Duration}, handle_cast({set_maximum_since_use, Age}, State) -> ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State). + noreply(State); + +handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> + %% Do not invoke noreply as it would see no timer and create a new one. + emit_stats(State), + State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, + assert_invariant(State1), + {noreply, State1, hibernate}. handle_info(update_ram_duration, State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> @@ -1082,13 +1089,6 @@ handle_info(maybe_expire, State) -> handle_info(drop_expired, State) -> noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); -handle_info(emit_stats, State = #q{stats_timer = StatsTimer}) -> - %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), - State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - assert_invariant(State1), - {noreply, State1, hibernate}; - handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> %% Exclusively owned queues must disappear with their owner. In diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index e950fa18..fbb0bf61 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -42,7 +42,7 @@ -export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2]). + prioritise_cast/2]). -record(ch, {state, channel, reader_pid, writer_pid, limiter_pid, start_limiter_fun, transaction_id, tx_participants, next_tag, @@ -160,7 +160,7 @@ info_all(Items) -> rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). emit_stats(Pid) -> - gen_server2:info(Pid, emit_stats). + gen_server2:cast(Pid, emit_stats). %%--------------------------------------------------------------------------- @@ -208,13 +208,8 @@ prioritise_call(Msg, _From, _State) -> prioritise_cast(Msg, _State) -> case Msg of - _ -> 0 - end. - -prioritise_info(Msg, _State) -> - case Msg of - emit_stats -> 7; - _ -> 0 + emit_stats -> 7; + _ -> 0 end. handle_call(flush, _From, State) -> @@ -287,18 +282,18 @@ handle_cast({deliver, ConsumerTag, AckRequired, end, State), noreply(State1#ch{next_tag = DeliveryTag + 1}); +handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> + internal_emit_stats(State), + {noreply, + State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, + hibernate}; + handle_cast({confirm, MsgSeqNo, From}, State) -> {noreply, confirm(MsgSeqNo, From, State)}. handle_info(flush_confirms, State) -> {noreply, internal_flush_confirms(State)}; -handle_info(emit_stats, State = #ch{stats_timer = StatsTimer}) -> - internal_emit_stats(State), - {noreply, - State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - hibernate}; - handle_info({'DOWN', _MRef, process, QPid, _Reason}, State = #ch{queues_for_msg = QFM}) -> State1 = dict:fold( diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 9d9c7096..4dd150a2 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -219,7 +219,7 @@ info(Pid, Items) -> end. emit_stats(Pid) -> - gen_server:info(Pid, emit_stats). + gen_server:cast(Pid, emit_stats). conserve_memory(Pid, Conserve) -> Pid ! {conserve_memory, Conserve}, @@ -377,7 +377,7 @@ mainloop(Deb, State = #v1{parent = Parent, sock= Sock, recv_ref = Ref}) -> catch Error -> {error, Error} end), mainloop(Deb, State); - emit_stats -> + {'$gen_cast', emit_stats} -> State1 = internal_emit_stats(State), mainloop(Deb, State1); {system, From, Request} -> -- cgit v1.2.1 From 4328a9df40f3a35815bbfa3f661c259e0b137e45 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sat, 11 Dec 2010 10:40:52 -0800 Subject: Refactored emit_stats message in amqqueue and amqqueue_process --- src/rabbit_amqqueue.erl | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 0ad13b05..8a025197 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -365,7 +365,7 @@ consumers_all(VHostPath) -> stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat, infinity). emit_stats(#amqqueue{pid = QPid}) -> - delegate_cast(QPid, emit_stats). + delegate_info(QPid, emit_stats). delete_immediately(#amqqueue{ pid = QPid }) -> gen_server2:cast(QPid, delete_immediately). @@ -507,3 +507,6 @@ delegate_call(Pid, Msg, Timeout) -> delegate_cast(Pid, Msg) -> delegate:invoke(Pid, fun (P) -> gen_server2:cast(P, Msg) end). + +delegate_info(Pid, Msg) -> + delegate:invoke(Pid, fun (P) -> gen_server2:info(P, Msg) end). -- cgit v1.2.1 From fb03baf657a0b9dd73ca0b8b361a9b6b3eb0922a Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sat, 11 Dec 2010 11:38:51 -0800 Subject: Refactored emit_stats from cast message to ordinary message (successfully this time). --- src/rabbit_amqqueue.erl | 2 +- src/rabbit_amqqueue_process.erl | 15 ++++++++------- src/rabbit_channel.erl | 17 +++++++++++------ src/rabbit_reader.erl | 4 ++-- 4 files changed, 22 insertions(+), 16 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 8a025197..584d2b80 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -509,4 +509,4 @@ delegate_cast(Pid, Msg) -> delegate:invoke(Pid, fun (P) -> gen_server2:cast(P, Msg) end). delegate_info(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> gen_server2:info(P, Msg) end). + delegate:invoke(Pid, fun (P) -> catch erlang:send(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 2479715a..6df86b24 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1061,14 +1061,8 @@ handle_cast({set_ram_duration_target, Duration}, handle_cast({set_maximum_since_use, Age}, State) -> ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); + noreply(State). -handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> - %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), - State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - assert_invariant(State1), - {noreply, State1, hibernate}. handle_info(update_ram_duration, State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> @@ -1089,6 +1083,13 @@ handle_info(maybe_expire, State) -> handle_info(drop_expired, State) -> noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); +handle_info(emit_stats, State = #q{stats_timer = StatsTimer}) -> + %% Do not invoke noreply as it would see no timer and create a new one. + emit_stats(State), + State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, + assert_invariant(State1), + {noreply, State1, hibernate}; + handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> %% Exclusively owned queues must disappear with their owner. In diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index fbb0bf61..16cce547 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -42,7 +42,7 @@ -export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2]). + prioritise_cast/2, prioritise_info/2]). -record(ch, {state, channel, reader_pid, writer_pid, limiter_pid, start_limiter_fun, transaction_id, tx_participants, next_tag, @@ -160,7 +160,7 @@ info_all(Items) -> rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). emit_stats(Pid) -> - gen_server2:cast(Pid, emit_stats). + catch erlang:send(Pid, emit_stats). %%--------------------------------------------------------------------------- @@ -207,6 +207,11 @@ prioritise_call(Msg, _From, _State) -> end. prioritise_cast(Msg, _State) -> + case Msg of + _ -> 0 + end. + +prioritise_info(Msg, _State) -> case Msg of emit_stats -> 7; _ -> 0 @@ -282,15 +287,15 @@ handle_cast({deliver, ConsumerTag, AckRequired, end, State), noreply(State1#ch{next_tag = DeliveryTag + 1}); -handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> +handle_cast({confirm, MsgSeqNo, From}, State) -> + {noreply, confirm(MsgSeqNo, From, State)}. + +handle_info(emit_stats, State = #ch{stats_timer = StatsTimer}) -> internal_emit_stats(State), {noreply, State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, hibernate}; -handle_cast({confirm, MsgSeqNo, From}, State) -> - {noreply, confirm(MsgSeqNo, From, State)}. - handle_info(flush_confirms, State) -> {noreply, internal_flush_confirms(State)}; diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 4dd150a2..4c709499 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -219,7 +219,7 @@ info(Pid, Items) -> end. emit_stats(Pid) -> - gen_server:cast(Pid, emit_stats). + catch erlang:send(Pid, emit_stats). conserve_memory(Pid, Conserve) -> Pid ! {conserve_memory, Conserve}, @@ -377,7 +377,7 @@ mainloop(Deb, State = #v1{parent = Parent, sock= Sock, recv_ref = Ref}) -> catch Error -> {error, Error} end), mainloop(Deb, State); - {'$gen_cast', emit_stats} -> + emit_stats -> State1 = internal_emit_stats(State), mainloop(Deb, State1); {system, From, Request} -> -- cgit v1.2.1 From e5f35077b47011f8f543ed3fdb7c3ed9032c997d Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sat, 11 Dec 2010 11:47:17 -0800 Subject: forgot one thing --- src/rabbit_amqqueue_process.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 6df86b24..f6df2130 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -742,7 +742,6 @@ prioritise_cast(Msg, _State) -> delete_immediately -> 8; {set_ram_duration_target, _Duration} -> 8; {set_maximum_since_use, _Age} -> 8; - emit_stats -> 7; {ack, _Txn, _MsgIds, _ChPid} -> 7; {reject, _MsgIds, _Requeue, _ChPid} -> 7; {notify_sent, _ChPid} -> 7; @@ -757,6 +756,7 @@ prioritise_info(Msg, _State) -> update_ram_duration -> 8; maybe_expire -> 8; drop_expired -> 8; + emit_stats -> 7; _ -> 0 end. -- cgit v1.2.1 From f0edf5579c481a983b441db605204e524a8b87bc Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sat, 11 Dec 2010 12:01:06 -0800 Subject: formatting --- src/rabbit_channel.erl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 16cce547..f4fc073d 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -208,13 +208,13 @@ prioritise_call(Msg, _From, _State) -> prioritise_cast(Msg, _State) -> case Msg of - _ -> 0 + _ -> 0 end. prioritise_info(Msg, _State) -> case Msg of - emit_stats -> 7; - _ -> 0 + emit_stats -> 7; + _ -> 0 end. handle_call(flush, _From, State) -> -- cgit v1.2.1 From dc2fb860fff3c009fa073711b4c054ed12ee2d11 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 13 Dec 2010 13:35:14 -0800 Subject: Change to rabbit_amqqueue_process.erl --- src/rabbit_amqqueue_process.erl | 3 +-- src/rabbit_channel.erl | 2 +- src/rabbit_event.erl | 29 ++++++++++++++++++++--------- src/rabbit_reader.erl | 2 +- 4 files changed, 23 insertions(+), 13 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index f6df2130..cb897045 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -278,8 +278,7 @@ ensure_expiry_timer(State = #q{expires = Expires}) -> ensure_stats_timer(State = #q{stats_timer = StatsTimer, q = Q}) -> State#q{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> rabbit_amqqueue:emit_stats(Q) end)}. + StatsTimer, Q, emit_stats)}. assert_invariant(#q{active_consumers = AC, backing_queue = BQ, backing_queue_state = BQS}) -> diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index f4fc073d..dfc5f9b4 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -350,7 +350,7 @@ noreply(NewState) -> ensure_stats_timer(State = #ch{stats_timer = StatsTimer}) -> ChPid = self(), - State#ch{stats_timer = rabbit_event:ensure_stats_timer( + State#ch{stats_timer = rabbit_event:old_ensure_stats_timer( StatsTimer, fun() -> emit_stats(ChPid) end)}. diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl index 2b236531..00970c9d 100644 --- a/src/rabbit_event.erl +++ b/src/rabbit_event.erl @@ -34,7 +34,7 @@ -include("rabbit.hrl"). -export([start_link/0]). --export([init_stats_timer/0, ensure_stats_timer/2, stop_stats_timer/1]). +-export([init_stats_timer/0, old_ensure_stats_timer/2, ensure_stats_timer/3, stop_stats_timer/1]). -export([reset_stats_timer/1]). -export([stats_level/1, if_enabled/2]). -export([notify/2]). @@ -71,7 +71,8 @@ -spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). -spec(init_stats_timer/0 :: () -> state()). --spec(ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). +-spec(old_ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). +-spec(ensure_stats_timer/3 :: (state(), pid(), term()) -> state()). -spec(stop_stats_timer/1 :: (state()) -> state()). -spec(reset_stats_timer/1 :: (state()) -> state()). -spec(stats_level/1 :: (state()) -> level()). @@ -93,7 +94,7 @@ start_link() -> %% if_enabled(internal_emit_stats) - so we immediately send something %% %% On wakeup: -%% ensure_stats_timer(Timer, emit_stats) +%% old_ensure_stats_timer(Timer, emit_stats) or ensure_stats_timer(Timer, Pid, emit_stats) %% (Note we can't emit stats immediately, the timer may have fired 1ms ago.) %% %% emit_stats: @@ -111,21 +112,31 @@ init_stats_timer() -> {ok, StatsLevel} = application:get_env(rabbit, collect_statistics), #state{level = StatsLevel, timer = undefined}. -ensure_stats_timer(State = #state{level = none}, _Fun) -> +old_ensure_stats_timer(State = #state{level = none}, _Fun) -> State; -ensure_stats_timer(State = #state{timer = undefined}, Fun) -> - {ok, TRef} = timer:apply_after(?STATS_INTERVAL, - erlang, apply, [Fun, []]), +old_ensure_stats_timer(State = #state{timer = undefined}, Fun) -> + TRef = timer:apply_after(?STATS_INTERVAL, erlang, apply, [Fun, []]), State#state{timer = TRef}; -ensure_stats_timer(State, _Fun) -> +old_ensure_stats_timer(State, _Fun) -> + State. + +ensure_stats_timer(State = #state{level = none}, _Pid, _Msg) -> + State; +ensure_stats_timer(State = #state{timer = undefined}, Pid, Msg) -> + TRef = erlang:send_after(?STATS_INTERVAL, Pid, Msg), + State#state{timer = TRef}; +ensure_stats_timer(State, _Pid, _Msg) -> State. stop_stats_timer(State = #state{level = none}) -> State; stop_stats_timer(State = #state{timer = undefined}) -> State; -stop_stats_timer(State = #state{timer = TRef}) -> +stop_stats_timer(State = #state{timer = {ok, TRef}}) -> {ok, cancel} = timer:cancel(TRef), + State#state{timer = undefined}; +stop_stats_timer(State = #state{timer = TRef}) -> + _TimeLeft = erlang:cancel_timer(TRef), State#state{timer = undefined}. reset_stats_timer(State) -> diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 4c709499..f4f03e1b 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -700,7 +700,7 @@ refuse_connection(Sock, Exception) -> ensure_stats_timer(State = #v1{stats_timer = StatsTimer, connection_state = running}) -> Self = self(), - State#v1{stats_timer = rabbit_event:ensure_stats_timer( + State#v1{stats_timer = rabbit_event:old_ensure_stats_timer( StatsTimer, fun() -> emit_stats(Self) end)}; ensure_stats_timer(State) -> -- cgit v1.2.1 From 07bfd8c16df93a9b415551dbf817319a0a54a904 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 13 Dec 2010 13:52:47 -0800 Subject: Undid incorrect change. --- src/rabbit_amqqueue_process.erl | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index cb897045..028e1c98 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -277,8 +277,9 @@ ensure_expiry_timer(State = #q{expires = Expires}) -> ensure_stats_timer(State = #q{stats_timer = StatsTimer, q = Q}) -> - State#q{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, Q, emit_stats)}. + State#q{stats_timer = rabbit_event:old_ensure_stats_timer( + StatsTimer, + fun() -> rabbit_amqqueue:emit_stats(Q) end)}. assert_invariant(#q{active_consumers = AC, backing_queue = BQ, backing_queue_state = BQS}) -> -- cgit v1.2.1 From 6afde7abd9e80e843fb039bb995675e55095552d Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 13 Dec 2010 14:24:41 -0800 Subject: Updated rabbit_amqqueue_process. --- src/rabbit_amqqueue_process.erl | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 028e1c98..820aeb58 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -276,10 +276,9 @@ ensure_expiry_timer(State = #q{expires = Expires}) -> end. ensure_stats_timer(State = #q{stats_timer = StatsTimer, - q = Q}) -> - State#q{stats_timer = rabbit_event:old_ensure_stats_timer( - StatsTimer, - fun() -> rabbit_amqqueue:emit_stats(Q) end)}. + q = #amqqueue{pid = QPid}}) -> + State#q{stats_timer = rabbit_event:ensure_stats_timer( + StatsTimer, QPid, emit_stats)}. assert_invariant(#q{active_consumers = AC, backing_queue = BQ, backing_queue_state = BQS}) -> -- cgit v1.2.1 From 9f472463799ed184cdd7d9f9db151001fc3434a9 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 13 Dec 2010 14:46:21 -0800 Subject: Updated rabbit_channel. --- src/rabbit_channel.erl | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index dfc5f9b4..ca83adc1 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -349,10 +349,8 @@ noreply(NewState) -> {noreply, ensure_stats_timer(NewState), hibernate}. ensure_stats_timer(State = #ch{stats_timer = StatsTimer}) -> - ChPid = self(), - State#ch{stats_timer = rabbit_event:old_ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(ChPid) end)}. + State#ch{stats_timer = rabbit_event:ensure_stats_timer( + StatsTimer, self(), emit_stats)}. return_ok(State, true, _Msg) -> {noreply, State}; return_ok(State, false, Msg) -> {reply, Msg, State}. -- cgit v1.2.1 From 9449a56b8c5f087d9324d61ca51e0de5645347db Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 13 Dec 2010 15:06:50 -0800 Subject: Updated rabbit_reader. --- src/rabbit_reader.erl | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index f4f03e1b..fd178213 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -699,10 +699,8 @@ refuse_connection(Sock, Exception) -> ensure_stats_timer(State = #v1{stats_timer = StatsTimer, connection_state = running}) -> - Self = self(), - State#v1{stats_timer = rabbit_event:old_ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(Self) end)}; + State#v1{stats_timer = rabbit_event:ensure_stats_timer( + StatsTimer, self(), emit_stats)}; ensure_stats_timer(State) -> State. -- cgit v1.2.1 From 2b43ddab1419a446e0524978933e1e5284be71cc Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 13 Dec 2010 15:25:26 -0800 Subject: Eliminated old_ensure_stats_timer. --- src/rabbit_event.erl | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl index 00970c9d..141306b7 100644 --- a/src/rabbit_event.erl +++ b/src/rabbit_event.erl @@ -34,7 +34,7 @@ -include("rabbit.hrl"). -export([start_link/0]). --export([init_stats_timer/0, old_ensure_stats_timer/2, ensure_stats_timer/3, stop_stats_timer/1]). +-export([init_stats_timer/0, ensure_stats_timer/3, stop_stats_timer/1]). -export([reset_stats_timer/1]). -export([stats_level/1, if_enabled/2]). -export([notify/2]). @@ -71,7 +71,6 @@ -spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). -spec(init_stats_timer/0 :: () -> state()). --spec(old_ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). -spec(ensure_stats_timer/3 :: (state(), pid(), term()) -> state()). -spec(stop_stats_timer/1 :: (state()) -> state()). -spec(reset_stats_timer/1 :: (state()) -> state()). @@ -94,7 +93,7 @@ start_link() -> %% if_enabled(internal_emit_stats) - so we immediately send something %% %% On wakeup: -%% old_ensure_stats_timer(Timer, emit_stats) or ensure_stats_timer(Timer, Pid, emit_stats) +%% ensure_stats_timer(Timer, Pid, emit_stats) %% (Note we can't emit stats immediately, the timer may have fired 1ms ago.) %% %% emit_stats: @@ -112,14 +111,6 @@ init_stats_timer() -> {ok, StatsLevel} = application:get_env(rabbit, collect_statistics), #state{level = StatsLevel, timer = undefined}. -old_ensure_stats_timer(State = #state{level = none}, _Fun) -> - State; -old_ensure_stats_timer(State = #state{timer = undefined}, Fun) -> - TRef = timer:apply_after(?STATS_INTERVAL, erlang, apply, [Fun, []]), - State#state{timer = TRef}; -old_ensure_stats_timer(State, _Fun) -> - State. - ensure_stats_timer(State = #state{level = none}, _Pid, _Msg) -> State; ensure_stats_timer(State = #state{timer = undefined}, Pid, Msg) -> @@ -132,9 +123,6 @@ stop_stats_timer(State = #state{level = none}) -> State; stop_stats_timer(State = #state{timer = undefined}) -> State; -stop_stats_timer(State = #state{timer = {ok, TRef}}) -> - {ok, cancel} = timer:cancel(TRef), - State#state{timer = undefined}; stop_stats_timer(State = #state{timer = TRef}) -> _TimeLeft = erlang:cancel_timer(TRef), State#state{timer = undefined}. -- cgit v1.2.1 From 6507f3330770f57712b8108682e8139111aac170 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 13 Dec 2010 16:00:55 -0800 Subject: Rename rabbit_amqqueue_process:emit_stats to internal_emit_stats; removed rabbit_amqueue:emit_stats and rabbit_reader:emit_stats. --- src/rabbit_amqqueue.erl | 8 -------- src/rabbit_amqqueue_process.erl | 20 ++++++++++---------- src/rabbit_reader.erl | 6 ------ 3 files changed, 10 insertions(+), 24 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 584d2b80..77507876 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -41,7 +41,6 @@ check_exclusive_access/2, with_exclusive_access_or_die/3, stat/1, deliver/2, requeue/3, ack/4, reject/4]). -export([list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). --export([emit_stats/1]). -export([consumers/1, consumers_all/1]). -export([basic_get/3, basic_consume/7, basic_cancel/4]). -export([notify_sent/2, unblock/2, flush_all/2]). @@ -109,7 +108,6 @@ -spec(stat/1 :: (rabbit_types:amqqueue()) -> {'ok', non_neg_integer(), non_neg_integer()}). --spec(emit_stats/1 :: (rabbit_types:amqqueue()) -> 'ok'). -spec(delete_immediately/1 :: (rabbit_types:amqqueue()) -> 'ok'). -spec(delete/3 :: (rabbit_types:amqqueue(), 'false', 'false') @@ -364,9 +362,6 @@ consumers_all(VHostPath) -> stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat, infinity). -emit_stats(#amqqueue{pid = QPid}) -> - delegate_info(QPid, emit_stats). - delete_immediately(#amqqueue{ pid = QPid }) -> gen_server2:cast(QPid, delete_immediately). @@ -507,6 +502,3 @@ delegate_call(Pid, Msg, Timeout) -> delegate_cast(Pid, Msg) -> delegate:invoke(Pid, fun (P) -> gen_server2:cast(P, Msg) end). - -delegate_info(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> catch erlang:send(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 820aeb58..f54fe62d 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -166,8 +166,9 @@ declare(Recover, From, State1 = process_args(State#q{backing_queue_state = BQS}), rabbit_event:notify(queue_created, infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> emit_stats(State1) end), + rabbit_event:if_enabled( + StatsTimer, + fun() -> internal_emit_stats(State1) end), noreply(State1); Q1 -> {stop, normal, {existing, Q1}, State} end. @@ -719,10 +720,10 @@ i(backing_queue_status, #q{backing_queue_state = BQS, backing_queue = BQ}) -> i(Item, _) -> throw({bad_argument, Item}). -emit_stats(State) -> - emit_stats(State, []). +internal_emit_stats(State) -> + internal_emit_stats(State, []). -emit_stats(State, Extra) -> +internal_emit_stats(State, Extra) -> rabbit_event:notify(queue_stats, Extra ++ infos(?STATISTICS_KEYS, State)). %--------------------------------------------------------------------------- @@ -1084,7 +1085,7 @@ handle_info(drop_expired, State) -> handle_info(emit_stats, State = #q{stats_timer = StatsTimer}) -> %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), + internal_emit_stats(State), State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, assert_invariant(State1), {noreply, State1, hibernate}; @@ -1125,10 +1126,9 @@ handle_pre_hibernate(State = #q{backing_queue = BQ, DesiredDuration = rabbit_memory_monitor:report_ram_duration(self(), infinity), BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - rabbit_event:if_enabled(StatsTimer, - fun () -> - emit_stats(State, [{idle_since, now()}]) - end), + rabbit_event:if_enabled( + StatsTimer, + fun () -> internal_emit_stats(State, [{idle_since, now()}]) end), State1 = State#q{stats_timer = rabbit_event:stop_stats_timer(StatsTimer), backing_queue_state = BQS2}, {hibernate, stop_rate_timer(State1)}. diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index fd178213..e13f36ae 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -43,8 +43,6 @@ -export([analyze_frame/3]). --export([emit_stats/1]). - -define(HANDSHAKE_TIMEOUT, 10). -define(NORMAL_TIMEOUT, 3). -define(CLOSING_TIMEOUT, 1). @@ -163,7 +161,6 @@ -spec(info_keys/0 :: () -> rabbit_types:info_keys()). -spec(info/1 :: (pid()) -> rabbit_types:infos()). -spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(emit_stats/1 :: (pid()) -> 'ok'). -spec(shutdown/2 :: (pid(), string()) -> 'ok'). -spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok'). -spec(server_properties/0 :: () -> rabbit_framing:amqp_table()). @@ -218,9 +215,6 @@ info(Pid, Items) -> {error, Error} -> throw(Error) end. -emit_stats(Pid) -> - catch erlang:send(Pid, emit_stats). - conserve_memory(Pid, Conserve) -> Pid ! {conserve_memory, Conserve}, ok. -- cgit v1.2.1 From 1a66a811ad8e251dec6fd85ae9df4da325052097 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 14 Dec 2010 15:44:21 -0800 Subject: Replaced tabs I inserted with spaces. --- src/file_handle_cache.erl | 4 ++-- src/rabbit_amqqueue.erl | 4 ++-- src/rabbit_amqqueue_process.erl | 4 ++-- src/rabbit_msg_store.erl | 2 +- 4 files changed, 7 insertions(+), 7 deletions(-) diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl index 5e86d8aa..68bb0e47 100644 --- a/src/file_handle_cache.erl +++ b/src/file_handle_cache.erl @@ -1120,8 +1120,8 @@ reduce(State = #fhc_state { open_pending = OpenPending, end, case TRef of undefined -> TRef1 = erlang:send_after( - ?FILE_HANDLES_CHECK_INTERVAL, ?SERVER, - check_counts), + ?FILE_HANDLES_CHECK_INTERVAL, ?SERVER, + check_counts), State #fhc_state { timer_ref = TRef1 }; _ -> State end. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 77507876..b44ef00a 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -2,7 +2,7 @@ %% Version 1.1 (the "License"); you may not use this file except in %% compliance with the License. You may obtain a copy of the License at %% http://www.mozilla.org/MPL/ -%% +%%`< %% Software distributed under the License is distributed on an "AS IS" %% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the %% License for the specific language governing rights and limitations @@ -35,7 +35,7 @@ -export([internal_declare/2, internal_delete/1, maybe_run_queue_via_backing_queue/2, maybe_run_queue_via_backing_queue_async/2, set_ram_duration_target/2, - set_maximum_since_use/2]). + set_maximum_since_use/2]). -export([pseudo_queue/2]). -export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, check_exclusive_access/2, with_exclusive_access_or_die/3, diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index f54fe62d..a95150d1 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -167,8 +167,8 @@ declare(Recover, From, rabbit_event:notify(queue_created, infos(?CREATION_EVENT_KEYS, State1)), rabbit_event:if_enabled( - StatsTimer, - fun() -> internal_emit_stats(State1) end), + StatsTimer, + fun() -> internal_emit_stats(State1) end), noreply(State1); Q1 -> {stop, normal, {existing, Q1}, State} end. diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 82ae0470..50726cb5 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -43,7 +43,7 @@ -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3, prioritise_call/3, prioritise_cast/2, - prioritise_info/2]). + prioritise_info/2]). %%---------------------------------------------------------------------------- -- cgit v1.2.1 From cecbf1a7660ef44cc0f92328392c684fa46ebf7f Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 15 Dec 2010 11:27:31 -0800 Subject: Eliminated assignments to read-only variables. --- src/rabbit_amqqueue_process.erl | 4 ++-- src/rabbit_channel.erl | 2 +- src/rabbit_event.erl | 2 +- src/rabbit_msg_store.erl | 2 +- 4 files changed, 5 insertions(+), 5 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index a95150d1..cc0718ca 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -252,13 +252,13 @@ stop_rate_timer(State = #q{rate_timer_ref = undefined}) -> stop_rate_timer(State = #q{rate_timer_ref = just_measured}) -> State#q{rate_timer_ref = undefined}; stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> - _TimeLeft = erlang:cancel_timer(TRef), + erlang:cancel_timer(TRef), State#q{rate_timer_ref = undefined}. stop_expiry_timer(State = #q{expiry_timer_ref = undefined}) -> State; stop_expiry_timer(State = #q{expiry_timer_ref = TRef}) -> - _TimeLeft = erlang:cancel_timer(TRef), + erlang:cancel_timer(TRef), State#q{expiry_timer_ref = undefined}. %% We wish to expire only when there are no consumers *and* the expiry diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index ca83adc1..10b84ccc 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -1259,7 +1259,7 @@ start_confirm_timer(State) -> stop_confirm_timer(State = #ch{confirm_tref = undefined}) -> State; stop_confirm_timer(State = #ch{confirm_tref = TRef}) -> - _TimeLeft = erlang:cancel_timer(TRef), + erlang:cancel_timer(TRef), State#ch{confirm_tref = undefined}. internal_flush_confirms(State = #ch{writer_pid = WriterPid, diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl index 141306b7..44b6c78c 100644 --- a/src/rabbit_event.erl +++ b/src/rabbit_event.erl @@ -124,7 +124,7 @@ stop_stats_timer(State = #state{level = none}) -> stop_stats_timer(State = #state{timer = undefined}) -> State; stop_stats_timer(State = #state{timer = TRef}) -> - _TimeLeft = erlang:cancel_timer(TRef), + erlang:cancel_timer(TRef), State#state{timer = undefined}. reset_stats_timer(State) -> diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 50726cb5..1bec47b1 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -860,7 +860,7 @@ start_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> stop_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> State; stop_sync_timer(State = #msstate { sync_timer_ref = TRef }) -> - _TimeLeft = erlang:cancel_timer(TRef), + erlang:cancel_timer(TRef), State #msstate { sync_timer_ref = undefined }. internal_sync(State = #msstate { current_file_handle = CurHdl, -- cgit v1.2.1 From 395c2dedafa41df4996a2d89dca5b67762fc65a6 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 15 Dec 2010 11:31:17 -0800 Subject: Removed empty rabbit_channel:prioritise_cast --- src/rabbit_channel.erl | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 10b84ccc..2020e1d8 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -42,7 +42,7 @@ -export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2]). + prioritise_info/2]). -record(ch, {state, channel, reader_pid, writer_pid, limiter_pid, start_limiter_fun, transaction_id, tx_participants, next_tag, @@ -206,11 +206,6 @@ prioritise_call(Msg, _From, _State) -> _ -> 0 end. -prioritise_cast(Msg, _State) -> - case Msg of - _ -> 0 - end. - prioritise_info(Msg, _State) -> case Msg of emit_stats -> 7; -- cgit v1.2.1 From f9595301d915515669a4f84454931f0cfdc94663 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 15 Dec 2010 16:30:25 -0800 Subject: Removed a tab. --- src/rabbit_amqqueue_process.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index cc0718ca..223af933 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -240,7 +240,7 @@ stop_sync_timer(State = #q{sync_timer_ref = TRef}) -> ensure_rate_timer(State = #q{rate_timer_ref = undefined}) -> TRef = erlang:send_after( - ?RAM_DURATION_UPDATE_INTERVAL, self(), update_ram_duration), + ?RAM_DURATION_UPDATE_INTERVAL, self(), update_ram_duration), State#q{rate_timer_ref = TRef}; ensure_rate_timer(State = #q{rate_timer_ref = just_measured}) -> State#q{rate_timer_ref = undefined}; -- cgit v1.2.1 From cbda945ecb797408a9dfd211c2fb229d34a81401 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Sun, 19 Dec 2010 13:40:31 +0000 Subject: fix msg_store losing confirms --- src/rabbit_msg_store.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index e8b4e8e2..2e1834c7 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -701,7 +701,7 @@ handle_cast({write, CRef, Guid}, {ok, _} -> dict:update(CRef, fun(Guids) -> gb_sets:add(Guid, Guids) end, - gb_sets:empty(), CTG); + gb_sets:singleton(Guid), CTG); error -> CTG end, State1 = State #msstate { cref_to_guids = CTG1 }, -- cgit v1.2.1 From a5c776b08671554cd0aebc2e54ce4b61a28b38e1 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 20 Dec 2010 16:30:08 +0000 Subject: Some amount of identifying queues by name rather than pid, but not for fine stats. --- src/rabbit_amqqueue_process.erl | 32 +++++++++++++++++--------------- src/rabbit_channel.erl | 2 +- 2 files changed, 18 insertions(+), 16 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 981dd31d..e86b3512 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -79,7 +79,8 @@ unsent_message_count}). -define(STATISTICS_KEYS, - [pid, + [name, + pid, exclusive_consumer_pid, exclusive_consumer_tag, messages_ready, @@ -91,8 +92,7 @@ ]). -define(CREATION_EVENT_KEYS, - [pid, - name, + [name, durable, auto_delete, arguments, @@ -199,9 +199,9 @@ terminate_shutdown(Fun, State) -> BQ:tx_rollback(Txn, BQSN), BQSN1 end, BQS, all_ch_record()), - [emit_consumer_deleted(Ch, CTag) + [emit_consumer_deleted(Ch, CTag, State1) || {Ch, CTag, _} <- consumers(State1)], - rabbit_event:notify(queue_deleted, [{pid, self()}]), + rabbit_event:notify(queue_deleted, infos([name], State)), State1#q{backing_queue_state = Fun(BQS1)} end. @@ -537,9 +537,9 @@ remove_consumer(ChPid, ConsumerTag, Queue) -> (CP /= ChPid) or (CT /= ConsumerTag) end, Queue). -remove_consumers(ChPid, Queue) -> +remove_consumers(ChPid, Queue, State) -> {Kept, Removed} = split_by_channel(ChPid, Queue), - [emit_consumer_deleted(Ch, CTag) || + [emit_consumer_deleted(Ch, CTag, State) || {Ch, #consumer{tag = CTag}} <- queue:to_list(Removed)], Kept. @@ -587,9 +587,11 @@ handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> Other -> Other end, active_consumers = remove_consumers( - ChPid, State#q.active_consumers), + ChPid, State#q.active_consumers, + State), blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, + ChPid, State#q.blocked_consumers, + State)}, case should_auto_delete(State1) of true -> {stop, State1}; false -> State2 = case Txn of @@ -744,19 +746,19 @@ emit_stats(State) -> emit_stats(State, Extra) -> rabbit_event:notify(queue_stats, Extra ++ infos(?STATISTICS_KEYS, State)). -emit_consumer_created(ChPid, ConsumerTag, Exclusive, AckRequired) -> +emit_consumer_created(ChPid, ConsumerTag, Exclusive, AckRequired, State) -> rabbit_event:notify(consumer_created, [{consumer_tag, ConsumerTag}, {exclusive, Exclusive}, {ack_required, AckRequired}, {channel, ChPid}, - {queue, self()}]). + {queue, i(name, State)}]). -emit_consumer_deleted(ChPid, ConsumerTag) -> +emit_consumer_deleted(ChPid, ConsumerTag, State) -> rabbit_event:notify(consumer_deleted, [{consumer_tag, ConsumerTag}, {channel, ChPid}, - {queue, self()}]). + {queue, i(name, State)}]). %--------------------------------------------------------------------------- @@ -925,7 +927,7 @@ handle_call({basic_consume, NoAck, ChPid, LimiterPid, State1#q.active_consumers)}) end, emit_consumer_created(ChPid, ConsumerTag, ExclusiveConsume, - not NoAck), + not NoAck, State2), reply(ok, State2) end; @@ -944,7 +946,7 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, C1#cr{limiter_pid = undefined}; _ -> C1 end), - emit_consumer_deleted(ChPid, ConsumerTag), + emit_consumer_deleted(ChPid, ConsumerTag, State), ok = maybe_send_reply(ChPid, OkMsg), NewState = State#q{exclusive_consumer = cancel_holder(ChPid, diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index edafd52d..802ef69d 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -1371,7 +1371,7 @@ internal_emit_stats(State = #ch{stats_timer = StatsTimer}, Extra) -> fine -> FineStats = [{channel_queue_stats, - [{QPid, Stats} || {{queue_stats, QPid}, Stats} <- get()]}, + [{Q, Stats} || {{queue_stats, Q}, Stats} <- get()]}, {channel_exchange_stats, [{X, Stats} || {{exchange_stats, X}, Stats} <- get()]}, {channel_queue_exchange_stats, -- cgit v1.2.1 From 4a7b340131aa510d0d1784ceca622bddc436886f Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 10:07:29 -0800 Subject: Third try; brute force this time. --- src/rabbit_backing_queue.erl | 2 +- src/rabbit_mnesia_queue.erl | 1947 +++++++++++++++++++++++++++++++++++++++++ src/rabbit_variable_queue.erl | 13 +- 3 files changed, 1954 insertions(+), 8 deletions(-) create mode 100644 src/rabbit_mnesia_queue.erl diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl index 8603d8d7..fd76fde3 100644 --- a/src/rabbit_backing_queue.erl +++ b/src/rabbit_backing_queue.erl @@ -105,7 +105,7 @@ behaviour_info(callbacks) -> %% Is my queue empty? {is_empty, 1}, - %% For the next three functions, the assumption is that you're + %% For the next two functions, the assumption is that you're %% monitoring something like the ingress and egress rates of the %% queue. The RAM duration is thus the length of time represented %% by the messages held in RAM given the current rates. If you diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl new file mode 100644 index 00000000..f6a87860 --- /dev/null +++ b/src/rabbit_mnesia_queue.erl @@ -0,0 +1,1947 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_mnesia_queue). + +-export([start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, + tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, + idle_timeout/1, handle_pre_hibernate/1, status/1]). + +%% exported for testing only +-export([start_msg_store/2, stop_msg_store/0, init/5]). + +%%---------------------------------------------------------------------------- +%% This is Take Three of a simple initial Mnesia implementation of the +%% rabbit_backing_queue behavior. This version was created by starting +%% with rabbit_variable_queue.erl, and removing everything +%% unneeded. +%% ---------------------------------------------------------------------------- + +%%---------------------------------------------------------------------------- +%% Definitions: + +%% alpha: this is a message where both the message itself, and its +%% position within the queue are held in RAM +%% +%% beta: this is a message where the message itself is only held on +%% disk, but its position within the queue is held in RAM. +%% +%% gamma: this is a message where the message itself is only held on +%% disk, but its position is both in RAM and on disk. +%% +%% delta: this is a collection of messages, represented by a single +%% term, where the messages and their position are only held on +%% disk. +%% +%% Note that for persistent messages, the message and its position +%% within the queue are always held on disk, *in addition* to being in +%% one of the above classifications. +%% +%% Also note that within this code, the term gamma never +%% appears. Instead, gammas are defined by betas who have had their +%% queue position recorded on disk. +%% +%% In general, messages move q1 -> q2 -> delta -> q3 -> q4, though +%% many of these steps are frequently skipped. q1 and q4 only hold +%% alphas, q2 and q3 hold both betas and gammas (as queues of queues, +%% using the bpqueue module where the block prefix determines whether +%% they're betas or gammas). When a message arrives, its +%% classification is determined. It is then added to the rightmost +%% appropriate queue. +%% +%% If a new message is determined to be a beta or gamma, q1 is +%% empty. If a new message is determined to be a delta, q1 and q2 are +%% empty (and actually q4 too). +%% +%% When removing messages from a queue, if q4 is empty then q3 is read +%% directly. If q3 becomes empty then the next segment's worth of +%% messages from delta are read into q3, reducing the size of +%% delta. If the queue is non empty, either q4 or q3 contain +%% entries. It is never permitted for delta to hold all the messages +%% in the queue. +%% +%% The duration indicated to us by the memory_monitor is used to +%% calculate, given our current ingress and egress rates, how many +%% messages we should hold in RAM. We track the ingress and egress +%% rates for both messages and pending acks and rates for both are +%% considered when calculating the number of messages to hold in +%% RAM. When we need to push alphas to betas or betas to gammas, we +%% favour writing out messages that are further from the head of the +%% queue. This minimises writes to disk, as the messages closer to the +%% tail of the queue stay in the queue for longer, thus do not need to +%% be replaced as quickly by sending other messages to disk. +%% +%% Whilst messages are pushed to disk and forgotten from RAM as soon +%% as requested by a new setting of the queue RAM duration, the +%% inverse is not true: we only load messages back into RAM as +%% demanded as the queue is read from. Thus only publishes to the +%% queue will take up available spare capacity. +%% +%% When we report our duration to the memory monitor, we calculate +%% average ingress and egress rates over the last two samples, and +%% then calculate our duration based on the sum of the ingress and +%% egress rates. More than two samples could be used, but it's a +%% balance between responding quickly enough to changes in +%% producers/consumers versus ignoring temporary blips. The problem +%% with temporary blips is that with just a few queues, they can have +%% substantial impact on the calculation of the average duration and +%% hence cause unnecessary I/O. Another alternative is to increase the +%% amqqueue_process:RAM_DURATION_UPDATE_PERIOD to beyond 5 +%% seconds. However, that then runs the risk of being too slow to +%% inform the memory monitor of changes. Thus a 5 second interval, +%% plus a rolling average over the last two samples seems to work +%% well in practice. +%% +%% The sum of the ingress and egress rates is used because the egress +%% rate alone is not sufficient. Adding in the ingress rate means that +%% queues which are being flooded by messages are given more memory, +%% resulting in them being able to process the messages faster (by +%% doing less I/O, or at least deferring it) and thus helping keep +%% their mailboxes empty and thus the queue as a whole is more +%% responsive. If such a queue also has fast but previously idle +%% consumers, the consumer can then start to be driven as fast as it +%% can go, whereas if only egress rate was being used, the incoming +%% messages may have to be written to disk and then read back in, +%% resulting in the hard disk being a bottleneck in driving the +%% consumers. Generally, we want to give Rabbit every chance of +%% getting rid of messages as fast as possible and remaining +%% responsive, and using only the egress rate impacts that goal. +%% +%% If a queue is full of transient messages, then the transition from +%% betas to deltas will be potentially very expensive as millions of +%% entries must be written to disk by the queue_index module. This can +%% badly stall the queue. In order to avoid this, the proportion of +%% gammas / (betas+gammas) must not be lower than (betas+gammas) / +%% (alphas+betas+gammas). As the queue grows or available memory +%% shrinks, the latter ratio increases, requiring the conversion of +%% more gammas to betas in order to maintain the invariant. At the +%% point at which betas and gammas must be converted to deltas, there +%% should be very few betas remaining, thus the transition is fast (no +%% work needs to be done for the gamma -> delta transition). +%% +%% The conversion of betas to gammas is done in batches of exactly +%% ?IO_BATCH_SIZE. This value should not be too small, otherwise the +%% frequent operations on the queues of q2 and q3 will not be +%% effectively amortised (switching the direction of queue access +%% defeats amortisation), nor should it be too big, otherwise +%% converting a batch stalls the queue for too long. Therefore, it +%% must be just right. ram_index_count is used here and is the number +%% of betas. +%% +%% The conversion from alphas to betas is also chunked, but only to +%% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at +%% any one time. This further smooths the effects of changes to the +%% target_ram_count and ensures the queue remains responsive +%% even when there is a large amount of IO work to do. The +%% idle_timeout callback is utilised to ensure that conversions are +%% done as promptly as possible whilst ensuring the queue remains +%% responsive. +%% +%% In the queue we keep track of both messages that are pending +%% delivery and messages that are pending acks. This ensures that +%% purging (deleting the former) and deletion (deleting the former and +%% the latter) are both cheap and do require any scanning through qi +%% segments. +%% +%% Pending acks are recorded in memory either as the tuple {SeqId, +%% Guid, MsgProps} (tuple-form) or as the message itself (message- +%% form). Acks for persistent messages are always stored in the tuple- +%% form. Acks for transient messages are also stored in tuple-form if +%% the message has been sent to disk as part of the memory reduction +%% process. For transient messages that haven't already been written +%% to disk, acks are stored in message-form. +%% +%% During memory reduction, acks stored in message-form are converted +%% to tuple-form, and the corresponding messages are pushed out to +%% disk. +%% +%% The order in which alphas are pushed to betas and message-form acks +%% are pushed to disk is determined dynamically. We always prefer to +%% push messages for the source (alphas or acks) that is growing the +%% fastest (with growth measured as avg. ingress - avg. egress). In +%% each round of memory reduction a chunk of messages at most +%% ?IO_BATCH_SIZE in size is allocated to be pushed to disk. The +%% fastest growing source will be reduced by as much of this chunk as +%% possible. If there is any remaining allocation in the chunk after +%% the first source has been reduced to zero, the second source will +%% be reduced by as much of the remaining chunk as possible. +%% +%% Notes on Clean Shutdown +%% (This documents behaviour in variable_queue, queue_index and +%% msg_store.) +%% +%% In order to try to achieve as fast a start-up as possible, if a +%% clean shutdown occurs, we try to save out state to disk to reduce +%% work on startup. In the msg_store this takes the form of the +%% index_module's state, plus the file_summary ets table, and client +%% refs. In the VQ, this takes the form of the count of persistent +%% messages in the queue and references into the msg_stores. The +%% queue_index adds to these terms the details of its segments and +%% stores the terms in the queue directory. +%% +%% Two message stores are used. One is created for persistent messages +%% to durable queues that must survive restarts, and the other is used +%% for all other messages that just happen to need to be written to +%% disk. On start up we can therefore nuke the transient message +%% store, and be sure that the messages in the persistent store are +%% all that we need. +%% +%% The references to the msg_stores are there so that the msg_store +%% knows to only trust its saved state if all of the queues it was +%% previously talking to come up cleanly. Likewise, the queues +%% themselves (esp queue_index) skips work in init if all the queues +%% and msg_store were shutdown cleanly. This gives both good speed +%% improvements and also robustness so that if anything possibly went +%% wrong in shutdown (or there was subsequent manual tampering), all +%% messages and queues that can be recovered are recovered, safely. +%% +%% To delete transient messages lazily, the variable_queue, on +%% startup, stores the next_seq_id reported by the queue_index as the +%% transient_threshold. From that point on, whenever it's reading a +%% message off disk via the queue_index, if the seq_id is below this +%% threshold and the message is transient then it drops the message +%% (the message itself won't exist on disk because it would have been +%% stored in the transient msg_store which would have had its saved +%% state nuked on startup). This avoids the expensive operation of +%% scanning the entire queue on startup in order to delete transient +%% messages that were only pushed to disk to save memory. +%% +%%---------------------------------------------------------------------------- + +-behaviour(rabbit_backing_queue). + +-record(mqstate, + { q1, + q2, + delta, + q3, + q4, + next_seq_id, + pending_ack, + pending_ack_index, + ram_ack_index, + index_state, + msg_store_clients, + on_sync, + durable, + transient_threshold, + + len, + persistent_count, + + target_ram_count, + ram_msg_count, + ram_msg_count_prev, + ram_ack_count_prev, + ram_index_count, + out_counter, + in_counter, + rates, + msgs_on_disk, + msg_indices_on_disk, + unconfirmed, + ack_out_counter, + ack_in_counter, + ack_rates + }). + +-record(rates, { egress, ingress, avg_egress, avg_ingress, timestamp }). + +-record(msg_status, + { seq_id, + guid, + msg, + is_persistent, + is_delivered, + msg_on_disk, + index_on_disk, + msg_props + }). + +-record(delta, + { start_seq_id, %% start_seq_id is inclusive + count, + end_seq_id %% end_seq_id is exclusive + }). + +-record(tx, { pending_messages, pending_acks }). + +-record(sync, { acks_persistent, acks_all, pubs, funs }). + +%% When we discover, on publish, that we should write some indices to +%% disk for some betas, the IO_BATCH_SIZE sets the number of betas +%% that we must be due to write indices for before we do any work at +%% all. This is both a minimum and a maximum - we don't write fewer +%% than RAM_INDEX_BATCH_SIZE indices out in one go, and we don't write +%% more - we can always come back on the next publish to do more. +-define(IO_BATCH_SIZE, 64). +-define(PERSISTENT_MSG_STORE, msg_store_persistent). +-define(TRANSIENT_MSG_STORE, msg_store_transient). + +-include("rabbit.hrl"). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}). +-type(seq_id() :: non_neg_integer()). +-type(ack() :: seq_id() | 'blank_ack'). + +-type(rates() :: #rates { egress :: {timestamp(), non_neg_integer()}, + ingress :: {timestamp(), non_neg_integer()}, + avg_egress :: float(), + avg_ingress :: float(), + timestamp :: timestamp() }). + +-type(delta() :: #delta { start_seq_id :: non_neg_integer(), + count :: non_neg_integer(), + end_seq_id :: non_neg_integer() }). + +-type(sync() :: #sync { acks_persistent :: [[seq_id()]], + acks_all :: [[seq_id()]], + pubs :: [{message_properties_transformer(), + [rabbit_types:basic_message()]}], + funs :: [fun (() -> any())] }). + +-type(state() :: #mqstate { + q1 :: queue(), + q2 :: bpqueue:bpqueue(), + delta :: delta(), + q3 :: bpqueue:bpqueue(), + q4 :: queue(), + next_seq_id :: seq_id(), + pending_ack :: dict(), + ram_ack_index :: gb_tree(), + index_state :: any(), + msg_store_clients :: 'undefined' | {{any(), binary()}, + {any(), binary()}}, + on_sync :: sync(), + durable :: boolean(), + + len :: non_neg_integer(), + persistent_count :: non_neg_integer(), + + transient_threshold :: non_neg_integer(), + target_ram_count :: non_neg_integer() | 'infinity', + ram_msg_count :: non_neg_integer(), + ram_msg_count_prev :: non_neg_integer(), + ram_index_count :: non_neg_integer(), + out_counter :: non_neg_integer(), + in_counter :: non_neg_integer(), + rates :: rates(), + msgs_on_disk :: gb_set(), + msg_indices_on_disk :: gb_set(), + unconfirmed :: gb_set(), + ack_out_counter :: non_neg_integer(), + ack_in_counter :: non_neg_integer(), + ack_rates :: rates() }). + +-include("rabbit_backing_queue_spec.hrl"). + +-endif. + +-define(BLANK_DELTA, #delta { start_seq_id = undefined, + count = 0, + end_seq_id = undefined }). +-define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, + count = 0, + end_seq_id = Z }). + +-define(BLANK_SYNC, #sync { acks_persistent = [], + acks_all = [], + pubs = [], + funs = [] }). + +%%---------------------------------------------------------------------------- +%% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. + +%%---------------------------------------------------------------------------- +%% start/1 is called on startup with a list of durable queue +%% names. The queues aren't being started at this point, but this call +%% allows the backing queue to perform any checking necessary for the +%% consistency of those queues, or initialise any other shared +%% resources. + +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). + +%%---------------------------------------------------------------------------- +%% Public API +%%---------------------------------------------------------------------------- + +start(DurableQueues) -> + {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), + start_msg_store( + [Ref || Terms <- AllTerms, + begin + Ref = proplists:get_value(persistent_ref, Terms), + Ref =/= undefined + end], + StartFunState). + +%%---------------------------------------------------------------------------- +%% stop/0 is called to tear down any state/resources. NB: +%% Implementations should not depend on this function being called on +%% shutdown and instead should hook into the rabbit supervision +%% hierarchy. + +%% -spec(stop/0 :: () -> 'ok'). + +stop() -> stop_msg_store(). + +start_msg_store(Refs, StartFunState) -> + ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, + [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), + undefined, {fun (ok) -> finished end, ok}]), + ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, + [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), + Refs, StartFunState]). + +stop_msg_store() -> + ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), + ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). + +%%---------------------------------------------------------------------------- +%% init/3 initializes one backing queue and its state. + +%% -spec(init/3 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) -> +%% state()). + +init(QueueName, IsDurable, Recover) -> + Self = self(), + init(QueueName, IsDurable, Recover, + fun (Guids) -> msgs_written_to_disk(Self, Guids) end, + fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). + +init(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> + IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), + init(IsDurable, IndexState, 0, [], + case IsDurable of + true -> msg_store_client_init(?PERSISTENT_MSG_STORE, + MsgOnDiskFun); + false -> undefined + end, + msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); + +init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> + Terms = rabbit_queue_index:shutdown_terms(QueueName), + {PRef, TRef, Terms1} = + case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of + [] -> {proplists:get_value(persistent_ref, Terms), + proplists:get_value(transient_ref, Terms), + Terms}; + _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} + end, + PersistentClient = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, + PRef, MsgOnDiskFun), + TransientClient = rabbit_msg_store:client_init(?TRANSIENT_MSG_STORE, + TRef, undefined), + {DeltaCount, IndexState} = + rabbit_queue_index:recover( + QueueName, Terms1, + rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), + fun (Guid) -> + rabbit_msg_store:contains(Guid, PersistentClient) + end, + MsgIdxOnDiskFun), + init(true, IndexState, DeltaCount, Terms1, + PersistentClient, TransientClient). + +%%---------------------------------------------------------------------------- +%% terminate/1 is called on queue shutdown when the queue isn't being +%% deleted. + +%% -spec(terminate/1 :: (state()) -> state()). + +terminate(State) -> + State1 = #mqstate { persistent_count = PCount, + index_state = IndexState, + msg_store_clients = {MSCStateP, MSCStateT} } = + remove_pending_ack(true, tx_commit_index(State)), + PRef = case MSCStateP of + undefined -> undefined; + _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), + rabbit_msg_store:client_ref(MSCStateP) + end, + ok = rabbit_msg_store:client_terminate(MSCStateT), + TRef = rabbit_msg_store:client_ref(MSCStateT), + Terms = [{persistent_ref, PRef}, + {transient_ref, TRef}, + {persistent_count, PCount}], + a(State1 #mqstate { index_state = rabbit_queue_index:terminate( + Terms, IndexState), + msg_store_clients = undefined }). + +%%---------------------------------------------------------------------------- +%% delete_and_terminate/1 is called when the queue is terminating and +%% needs to delete all its content. The only difference between purge +%% and delete is that delete also needs to delete everything that's +%% been delivered and not ack'd. + +%% -spec(delete_and_terminate/1 :: (state()) -> state()). + +%% the only difference between purge and delete is that delete also +%% needs to delete everything that's been delivered and not ack'd. + +delete_and_terminate(State) -> + %% TODO: there is no need to interact with qi at all - which we do + %% as part of 'purge' and 'remove_pending_ack', other than + %% deleting it. + {_PurgeCount, State1} = purge(State), + State2 = #mqstate { index_state = IndexState, + msg_store_clients = {MSCStateP, MSCStateT} } = + remove_pending_ack(false, State1), + IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), + case MSCStateP of + undefined -> ok; + _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) + end, + rabbit_msg_store:client_delete_and_terminate(MSCStateT), + a(State2 #mqstate { index_state = IndexState1, + msg_store_clients = undefined }). + +%%---------------------------------------------------------------------------- +%% purge/1 removes all messages in the queue, but not messages which +%% have been fetched and are pending acks. + +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(State = #mqstate { q4 = Q4, + index_state = IndexState, + msg_store_clients = MSCState, + len = Len, + persistent_count = PCount }) -> + %% TODO: when there are no pending acks, which is a common case, + %% we could simply wipe the qi instead of issuing delivers and + %% acks for all the messages. + {LensByStore, IndexState1} = remove_queue_entries( + fun rabbit_misc:queue_fold/3, Q4, + orddict:new(), IndexState, MSCState), + {LensByStore1, State1 = #mqstate { q1 = Q1, + index_state = IndexState2, + msg_store_clients = MSCState1 }} = + purge_betas_and_deltas(LensByStore, + State #mqstate { q4 = queue:new(), + index_state = IndexState1 }), + {LensByStore2, IndexState3} = remove_queue_entries( + fun rabbit_misc:queue_fold/3, Q1, + LensByStore1, IndexState2, MSCState1), + PCount1 = PCount - find_persistent_count(LensByStore2), + {Len, a(State1 #mqstate { q1 = queue:new(), + index_state = IndexState3, + len = 0, + ram_msg_count = 0, + ram_index_count = 0, + persistent_count = PCount1 })}. + +%%---------------------------------------------------------------------------- +%% publish/3 publishes a message. + +%% -spec(publish/3 :: (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) -> state()). + +publish(Msg, MsgProps, State) -> + {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), + a(reduce_memory_use(State1)). + +%%---------------------------------------------------------------------------- +%% publish_delivered/4 is called for messages which have already been +%% passed straight out to a client. The queue will be empty for these +%% calls (i.e. saves the round trip through the backing queue). + +%% -spec(publish_delivered/4 :: (ack_required(), rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {ack(), state()}). + +publish_delivered(false, _Msg, _MsgProps, State = #mqstate { len = 0 }) -> + {blank_ack, a(State)}; +publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, + guid = Guid }, + MsgProps = #message_properties { + needs_confirming = NeedsConfirming }, + State = #mqstate { len = 0, + next_seq_id = SeqId, + out_counter = OutCount, + in_counter = InCount, + persistent_count = PCount, + durable = IsDurable, + unconfirmed = Unconfirmed }) -> + IsPersistent1 = IsDurable andalso IsPersistent, + MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) + #msg_status { is_delivered = true }, + {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), + State2 = record_pending_ack(m(MsgStatus1), State1), + PCount1 = PCount + one_if(IsPersistent1), + Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), + {SeqId, a(reduce_memory_use( + State2 #mqstate { next_seq_id = SeqId + 1, + out_counter = OutCount + 1, + in_counter = InCount + 1, + persistent_count = PCount1, + unconfirmed = Unconfirmed1 }))}. + +%%---------------------------------------------------------------------------- +%% dropwhile/2 drops messages from the head of the queue while the +%% supplied predicate returns true. + +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). + +dropwhile(Pred, State) -> + {_OkOrEmpty, State1} = dropwhile1(Pred, State), + State1. + +dropwhile1(Pred, State) -> + internal_queue_out( + fun(MsgStatus = #msg_status { msg_props = MsgProps }, State1) -> + case Pred(MsgProps) of + true -> + {_, State2} = internal_fetch(false, MsgStatus, State1), + dropwhile1(Pred, State2); + false -> + %% message needs to go back into Q4 (or maybe go + %% in for the first time if it was loaded from + %% Q3). Also the msg contents might not be in + %% RAM, so read them in now + {MsgStatus1, State2 = #mqstate { q4 = Q4 }} = + read_msg(MsgStatus, State1), + {ok, State2 #mqstate {q4 = queue:in_r(MsgStatus1, Q4) }} + end + end, State). + +%%---------------------------------------------------------------------------- +%% fetch/2 produces the next message. + +%% -spec(fetch/2 :: (ack_required(), state()) -> {fetch_result(), state()}). + +fetch(AckRequired, State) -> + internal_queue_out( + fun(MsgStatus, State1) -> + %% it's possible that the message wasn't read from disk + %% at this point, so read it in. + {MsgStatus1, State2} = read_msg(MsgStatus, State1), + internal_fetch(AckRequired, MsgStatus1, State2) + end, State). + +internal_queue_out(Fun, State = #mqstate { q4 = Q4 }) -> + case queue:out(Q4) of + {empty, _Q4} -> + case fetch_from_q3(State) of + {empty, State1} = Result -> a(State1), Result; + {loaded, {MsgStatus, State1}} -> Fun(MsgStatus, State1) + end; + {{value, MsgStatus}, Q4a} -> + Fun(MsgStatus, State #mqstate { q4 = Q4a }) + end. + +read_msg(MsgStatus = #msg_status { msg = undefined, + guid = Guid, + is_persistent = IsPersistent }, + State = #mqstate { ram_msg_count = RamMsgCount, + msg_store_clients = MSCState}) -> + {{ok, Msg = #basic_message {}}, MSCState1} = + msg_store_read(MSCState, IsPersistent, Guid), + {MsgStatus #msg_status { msg = Msg }, + State #mqstate { ram_msg_count = RamMsgCount + 1, + msg_store_clients = MSCState1 }}; +read_msg(MsgStatus, State) -> + {MsgStatus, State}. + +internal_fetch(AckRequired, MsgStatus = #msg_status { + seq_id = SeqId, + guid = Guid, + msg = Msg, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk }, + State = #mqstate {ram_msg_count = RamMsgCount, + out_counter = OutCount, + index_state = IndexState, + msg_store_clients = MSCState, + len = Len, + persistent_count = PCount }) -> + %% 1. Mark it delivered if necessary + IndexState1 = maybe_write_delivered( + IndexOnDisk andalso not IsDelivered, + SeqId, IndexState), + + %% 2. Remove from msg_store and queue index, if necessary + Rem = fun () -> + ok = msg_store_remove(MSCState, IsPersistent, [Guid]) + end, + Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, + IndexState2 = + case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of + {false, true, false, _} -> Rem(), IndexState1; + {false, true, true, _} -> Rem(), Ack(); + { true, true, true, false} -> Ack(); + _ -> IndexState1 + end, + + %% 3. If an ack is required, add something sensible to PA + {AckTag, State1} = case AckRequired of + true -> StateN = record_pending_ack( + MsgStatus #msg_status { + is_delivered = true }, State), + {SeqId, StateN}; + false -> {blank_ack, State} + end, + + PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), + Len1 = Len - 1, + RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), + + {{Msg, IsDelivered, AckTag, Len1}, + a(State1 #mqstate { ram_msg_count = RamMsgCount1, + out_counter = OutCount + 1, + index_state = IndexState2, + len = Len1, + persistent_count = PCount1 })}. + +%%---------------------------------------------------------------------------- +%% ack/2 acknowledges messages. Acktags supplied are for messages +%% which can now be forgotten about. Must return 1 guid per Ack, in +%% the same order as Acks. + +%% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). + +ack(AckTags, State) -> + {Guids, State1} = + ack(fun msg_store_remove/3, + fun ({_IsPersistent, Guid, _MsgProps}, State1) -> + remove_confirms(gb_sets:singleton(Guid), State1); + (#msg_status{msg = #basic_message { guid = Guid }}, State1) -> + remove_confirms(gb_sets:singleton(Guid), State1) + end, + AckTags, State), + {Guids, a(State1)}. + +%%---------------------------------------------------------------------------- +%% tx_publish/4 is a publish, but in the context of a transaction. + +%% -spec(tx_publish/4 :: (rabbit_types:txn(), rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> state()). + +tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, + State = #mqstate { durable = IsDurable, + msg_store_clients = MSCState }) -> + Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), + store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), + case IsPersistent andalso IsDurable of + true -> MsgStatus = msg_status(true, undefined, Msg, MsgProps), + #msg_status { msg_on_disk = true } = + maybe_write_msg_to_disk(false, MsgStatus, MSCState); + false -> ok + end, + a(State). + +%%---------------------------------------------------------------------------- +%% tx_ack/3 acks, but in the context of a transaction. + +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). + +tx_ack(Txn, AckTags, State) -> + Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), + store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), + State. + +%%---------------------------------------------------------------------------- +%% tx_rollback/2 undoes anything which has been done in the context of +%% the specified transaction. + +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + +tx_rollback(Txn, State = #mqstate { durable = IsDurable, + msg_store_clients = MSCState }) -> + #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), + erase_tx(Txn), + ok = case IsDurable of + true -> msg_store_remove(MSCState, true, persistent_guids(Pubs)); + false -> ok + end, + {lists:append(AckTags), a(State)}. + +%%---------------------------------------------------------------------------- +%% tx_commit/4 commits a transaction. The Fun passed in must be called +%% once the messages have really been commited. This CPS permits the +%% possibility of commit coalescing. + +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), fun (() -> any()), +%% message_properties_transformer(), state()) -> {[ack()], state()}). + +tx_commit(Txn, Fun, MsgPropsFun, + State = #mqstate { durable = IsDurable, + msg_store_clients = MSCState }) -> + #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), + erase_tx(Txn), + AckTags1 = lists:append(AckTags), + PersistentGuids = persistent_guids(Pubs), + HasPersistentPubs = PersistentGuids =/= [], + {AckTags1, + a(case IsDurable andalso HasPersistentPubs of + true -> ok = msg_store_sync( + MSCState, true, PersistentGuids, + msg_store_callback(PersistentGuids, Pubs, AckTags1, + Fun, MsgPropsFun)), + State; + false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, + Fun, MsgPropsFun, State) + end)}. + +%%---------------------------------------------------------------------------- +%% requeue/3 reinserts messages into the queue which have already been +%% delivered and were pending acknowledgement. + +%% -spec(requeue/3 :: ([ack()], message_properties_transformer(), state()) +%% -> state()). + +requeue(AckTags, MsgPropsFun, State) -> + {_Guids, State1} = + ack(fun msg_store_release/3, + fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> + {_SeqId, State2} = publish(Msg, MsgPropsFun(MsgProps), + true, false, State1), + State2; + ({IsPersistent, Guid, MsgProps}, State1) -> + #mqstate { msg_store_clients = MSCState } = State1, + {{ok, Msg = #basic_message{}}, MSCState1} = + msg_store_read(MSCState, IsPersistent, Guid), + State2 = State1 #mqstate { msg_store_clients = MSCState1 }, + {_SeqId, State3} = publish(Msg, MsgPropsFun(MsgProps), + true, true, State2), + State3 + end, + AckTags, State), + a(reduce_memory_use(State1)). + +%%---------------------------------------------------------------------------- +%% len/1 returns the queue length. + +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(#mqstate { len = Len }) -> Len. + +%%---------------------------------------------------------------------------- +%% is_empty/1 returns 'true' if the queue is empty, and 'false' +%% otherwise. + +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(State) -> 0 == len(State). + +%%---------------------------------------------------------------------------- +%% For the next two functions, the assumption is that you're +%% monitoring something like the ingress and egress rates of the +%% queue. The RAM duration is thus the length of time represented by +%% the messages held in RAM given the current rates. If you want to +%% ignore all of this stuff, then do so, and return 0 in +%% ram_duration/1. + +%% set_ram_duration_target states that the target is to have no more +%% messages in RAM than indicated by the duration and the current +%% queue rates. + +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) -> state()). + +set_ram_duration_target( + DurationTarget, State = #mqstate { + rates = #rates { avg_egress = AvgEgressRate, + avg_ingress = AvgIngressRate }, + ack_rates = #rates { avg_egress = AvgAckEgressRate, + avg_ingress = AvgAckIngressRate }, + target_ram_count = TargetRamCount }) -> + Rate = + AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, + TargetRamCount1 = + case DurationTarget of + infinity -> infinity; + _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec + end, + State1 = State #mqstate { target_ram_count = TargetRamCount1 }, + a(case TargetRamCount1 == infinity orelse + (TargetRamCount =/= infinity andalso + TargetRamCount1 >= TargetRamCount) of + true -> State1; + false -> reduce_memory_use(State1) + end). + +%%---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the messages in RAM represent given the current rates of +%% the queue. + +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). + +ram_duration(State = #mqstate { + rates = #rates { timestamp = Timestamp, + egress = Egress, + ingress = Ingress } = Rates, + ack_rates = #rates { timestamp = AckTimestamp, + egress = AckEgress, + ingress = AckIngress } = ARates, + in_counter = InCount, + out_counter = OutCount, + ack_in_counter = AckInCount, + ack_out_counter = AckOutCount, + ram_msg_count = RamMsgCount, + ram_msg_count_prev = RamMsgCountPrev, + ram_ack_index = RamAckIndex, + ram_ack_count_prev = RamAckCountPrev }) -> + Now = now(), + {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), + {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), + + {AvgAckEgressRate, AckEgress1} = + update_rate(Now, AckTimestamp, AckOutCount, AckEgress), + {AvgAckIngressRate, AckIngress1} = + update_rate(Now, AckTimestamp, AckInCount, AckIngress), + + RamAckCount = gb_trees:size(RamAckIndex), + + Duration = %% msgs+acks / (msgs+acks/sec) == sec + case AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso + AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0 of + true -> infinity; + false -> (RamMsgCountPrev + RamMsgCount + + RamAckCount + RamAckCountPrev) / + (4 * (AvgEgressRate + AvgIngressRate + + AvgAckEgressRate + AvgAckIngressRate)) + end, + + {Duration, State #mqstate { + rates = Rates #rates { + egress = Egress1, + ingress = Ingress1, + avg_egress = AvgEgressRate, + avg_ingress = AvgIngressRate, + timestamp = Now }, + ack_rates = ARates #rates { + egress = AckEgress1, + ingress = AckIngress1, + avg_egress = AvgAckEgressRate, + avg_ingress = AvgAckIngressRate, + timestamp = Now }, + in_counter = 0, + out_counter = 0, + ack_in_counter = 0, + ack_out_counter = 0, + ram_msg_count_prev = RamMsgCount, + ram_ack_count_prev = RamAckCount }}. + +%%---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be +%% called as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires), and 'false' otherwise. + +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +needs_idle_timeout(State = #mqstate { on_sync = ?BLANK_SYNC }) -> + {Res, _State} = reduce_memory_use(fun (_Quota, State1) -> {0, State1} end, + fun (_Quota, State1) -> State1 end, + fun (State1) -> State1 end, + fun (_Quota, State1) -> {0, State1} end, + State), + Res; +needs_idle_timeout(_State) -> + true. + +%%---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be +%% called as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires), and 'false' otherwise. + +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +idle_timeout(State) -> a(reduce_memory_use(tx_commit_index(State))). + +%%---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. + +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). + +handle_pre_hibernate(State = #mqstate { index_state = IndexState }) -> + State #mqstate { index_state = rabbit_queue_index:flush(IndexState) }. + +%%---------------------------------------------------------------------------- +%% status/1 exists for debugging purposes, to be able to expose state +%% via rabbitmqctl list_queues backing_queue_status + +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(#mqstate { + q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, + len = Len, + pending_ack = PA, + ram_ack_index = RAI, + on_sync = #sync { funs = From }, + target_ram_count = TargetRamCount, + ram_msg_count = RamMsgCount, + ram_index_count = RamIndexCount, + next_seq_id = NextSeqId, + persistent_count = PersistentCount, + rates = #rates { avg_egress = AvgEgressRate, + avg_ingress = AvgIngressRate }, + ack_rates = #rates { avg_egress = AvgAckEgressRate, + avg_ingress = AvgAckIngressRate } }) -> + [ {q1 , queue:len(Q1)}, + {q2 , bpqueue:len(Q2)}, + {delta , Delta}, + {q3 , bpqueue:len(Q3)}, + {q4 , queue:len(Q4)}, + {len , Len}, + {pending_acks , dict:size(PA)}, + {outstanding_txns , length(From)}, + {target_ram_count , TargetRamCount}, + {ram_msg_count , RamMsgCount}, + {ram_ack_count , gb_trees:size(RAI)}, + {ram_index_count , RamIndexCount}, + {next_seq_id , NextSeqId}, + {persistent_count , PersistentCount}, + {avg_ingress_rate , AvgIngressRate}, + {avg_egress_rate , AvgEgressRate}, + {avg_ack_ingress_rate, AvgAckIngressRate}, + {avg_ack_egress_rate , AvgAckEgressRate} ]. + +%%---------------------------------------------------------------------------- +%% Minor helpers +%%---------------------------------------------------------------------------- + +a(State = #mqstate { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, + len = Len, + persistent_count = PersistentCount, + ram_msg_count = RamMsgCount, + ram_index_count = RamIndexCount }) -> + E1 = queue:is_empty(Q1), + E2 = bpqueue:is_empty(Q2), + ED = Delta#delta.count == 0, + E3 = bpqueue:is_empty(Q3), + E4 = queue:is_empty(Q4), + LZ = Len == 0, + + true = E1 or not E3, + true = E2 or not ED, + true = ED or not E3, + true = LZ == (E3 and E4), + + true = Len >= 0, + true = PersistentCount >= 0, + true = RamMsgCount >= 0, + true = RamIndexCount >= 0, + + State. + +m(MsgStatus = #msg_status { msg = Msg, + is_persistent = IsPersistent, + msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk }) -> + true = (not IsPersistent) or IndexOnDisk, + true = (not IndexOnDisk) or MsgOnDisk, + true = (Msg =/= undefined) or MsgOnDisk, + + MsgStatus. + +one_if(true ) -> 1; +one_if(false) -> 0. + +cons_if(true, E, L) -> [E | L]; +cons_if(false, _E, L) -> L. + +gb_sets_maybe_insert(false, _Val, Set) -> Set; +%% when requeueing, we re-add a guid to the unconfirmed set +gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). + +msg_status(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, + MsgProps) -> + #msg_status { seq_id = SeqId, guid = Guid, msg = Msg, + is_persistent = IsPersistent, is_delivered = false, + msg_on_disk = false, index_on_disk = false, + msg_props = MsgProps }. + +with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> + {Result, MSCStateP1} = Fun(MSCStateP), + {Result, {MSCStateP1, MSCStateT}}; +with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> + {Result, MSCStateT1} = Fun(MSCStateT), + {Result, {MSCStateP, MSCStateT1}}. + +with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> + {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, + fun (MSCState1) -> + {Fun(MSCState1), MSCState1} + end), + Res. + +msg_store_client_init(MsgStore, MsgOnDiskFun) -> + rabbit_msg_store:client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). + +msg_store_write(MSCState, IsPersistent, Guid, Msg) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MSCState1) -> rabbit_msg_store:write(Guid, Msg, MSCState1) end). + +msg_store_read(MSCState, IsPersistent, Guid) -> + with_msg_store_state( + MSCState, IsPersistent, + fun (MSCState1) -> rabbit_msg_store:read(Guid, MSCState1) end). + +msg_store_remove(MSCState, IsPersistent, Guids) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MCSState1) -> rabbit_msg_store:remove(Guids, MCSState1) end). + +msg_store_release(MSCState, IsPersistent, Guids) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MCSState1) -> rabbit_msg_store:release(Guids, MCSState1) end). + +msg_store_sync(MSCState, IsPersistent, Guids, Callback) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MSCState1) -> rabbit_msg_store:sync(Guids, Callback, MSCState1) end). + +maybe_write_delivered(false, _SeqId, IndexState) -> + IndexState; +maybe_write_delivered(true, SeqId, IndexState) -> + rabbit_queue_index:deliver([SeqId], IndexState). + +lookup_tx(Txn) -> case get({txn, Txn}) of + undefined -> #tx { pending_messages = [], + pending_acks = [] }; + V -> V + end. + +store_tx(Txn, Tx) -> put({txn, Txn}, Tx). + +erase_tx(Txn) -> erase({txn, Txn}). + +persistent_guids(Pubs) -> + [Guid || {#basic_message { guid = Guid, + is_persistent = true }, _MsgProps} <- Pubs]. + +betas_from_index_entries(List, TransientThreshold, IndexState) -> + {Filtered, Delivers, Acks} = + lists:foldr( + fun ({Guid, SeqId, MsgProps, IsPersistent, IsDelivered}, + {Filtered1, Delivers1, Acks1}) -> + case SeqId < TransientThreshold andalso not IsPersistent of + true -> {Filtered1, + cons_if(not IsDelivered, SeqId, Delivers1), + [SeqId | Acks1]}; + false -> {[m(#msg_status { msg = undefined, + guid = Guid, + seq_id = SeqId, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_on_disk = true, + index_on_disk = true, + msg_props = MsgProps + }) | Filtered1], + Delivers1, + Acks1} + end + end, {[], [], []}, List), + {bpqueue:from_list([{true, Filtered}]), + rabbit_queue_index:ack(Acks, + rabbit_queue_index:deliver(Delivers, IndexState))}. + +%% the first arg is the older delta +combine_deltas(?BLANK_DELTA_PATTERN(X), ?BLANK_DELTA_PATTERN(Y)) -> + ?BLANK_DELTA; +combine_deltas(?BLANK_DELTA_PATTERN(X), #delta { start_seq_id = Start, + count = Count, + end_seq_id = End } = B) -> + true = Start + Count =< End, %% ASSERTION + B; +combine_deltas(#delta { start_seq_id = Start, + count = Count, + end_seq_id = End } = A, ?BLANK_DELTA_PATTERN(Y)) -> + true = Start + Count =< End, %% ASSERTION + A; +combine_deltas(#delta { start_seq_id = StartLow, + count = CountLow, + end_seq_id = EndLow }, + #delta { start_seq_id = StartHigh, + count = CountHigh, + end_seq_id = EndHigh }) -> + Count = CountLow + CountHigh, + true = (StartLow =< StartHigh) %% ASSERTIONS + andalso ((StartLow + CountLow) =< EndLow) + andalso ((StartHigh + CountHigh) =< EndHigh) + andalso ((StartLow + Count) =< EndHigh), + #delta { start_seq_id = StartLow, count = Count, end_seq_id = EndHigh }. + +beta_fold(Fun, Init, Q) -> + bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). + +update_rate(Now, Then, Count, {OThen, OCount}) -> + %% avg over the current period and the previous + {1000000.0 * (Count + OCount) / timer:now_diff(Now, OThen), {Then, Count}}. + +%%---------------------------------------------------------------------------- +%% Internal major helpers for Public API +%%---------------------------------------------------------------------------- + +init(IsDurable, IndexState, DeltaCount, Terms, + PersistentClient, TransientClient) -> + {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), + + DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), + Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of + true -> ?BLANK_DELTA; + false -> #delta { start_seq_id = LowSeqId, + count = DeltaCount1, + end_seq_id = NextSeqId } + end, + Now = now(), + State = #mqstate { + q1 = queue:new(), + q2 = bpqueue:new(), + delta = Delta, + q3 = bpqueue:new(), + q4 = queue:new(), + next_seq_id = NextSeqId, + pending_ack = dict:new(), + ram_ack_index = gb_trees:empty(), + index_state = IndexState1, + msg_store_clients = {PersistentClient, TransientClient}, + on_sync = ?BLANK_SYNC, + durable = IsDurable, + transient_threshold = NextSeqId, + + len = DeltaCount1, + persistent_count = DeltaCount1, + + target_ram_count = infinity, + ram_msg_count = 0, + ram_msg_count_prev = 0, + ram_ack_count_prev = 0, + ram_index_count = 0, + out_counter = 0, + in_counter = 0, + rates = blank_rate(Now, DeltaCount1), + msgs_on_disk = gb_sets:new(), + msg_indices_on_disk = gb_sets:new(), + unconfirmed = gb_sets:new(), + ack_out_counter = 0, + ack_in_counter = 0, + ack_rates = blank_rate(Now, 0) }, + a(maybe_deltas_to_betas(State)). + +blank_rate(Timestamp, IngressLength) -> + #rates { egress = {Timestamp, 0}, + ingress = {Timestamp, IngressLength}, + avg_egress = 0.0, + avg_ingress = 0.0, + timestamp = Timestamp }. + +msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, MsgPropsFun) -> + Self = self(), + F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( + Self, fun (StateN) -> {[], tx_commit_post_msg_store( + true, Pubs, AckTags, + Fun, MsgPropsFun, StateN)} + end) + end, + fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( + fun () -> remove_persistent_messages( + PersistentGuids) + end, F) + end) + end. + +remove_persistent_messages(Guids) -> + PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, undefined), + ok = rabbit_msg_store:remove(Guids, PersistentClient), + rabbit_msg_store:client_delete_and_terminate(PersistentClient). + +tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, + State = #mqstate { + on_sync = OnSync = #sync { + acks_persistent = SPAcks, + acks_all = SAcks, + pubs = SPubs, + funs = SFuns }, + pending_ack = PA, + durable = IsDurable }) -> + PersistentAcks = + case IsDurable of + true -> [AckTag || AckTag <- AckTags, + case dict:fetch(AckTag, PA) of + #msg_status {} -> + false; + {IsPersistent, _Guid, _MsgProps} -> + IsPersistent + end]; + false -> [] + end, + case IsDurable andalso (HasPersistentPubs orelse PersistentAcks =/= []) of + true -> State #mqstate { + on_sync = #sync { + acks_persistent = [PersistentAcks | SPAcks], + acks_all = [AckTags | SAcks], + pubs = [{MsgPropsFun, Pubs} | SPubs], + funs = [Fun | SFuns] }}; + false -> State1 = tx_commit_index( + State #mqstate { + on_sync = #sync { + acks_persistent = [], + acks_all = [AckTags], + pubs = [{MsgPropsFun, Pubs}], + funs = [Fun] } }), + State1 #mqstate { on_sync = OnSync } + end. + +tx_commit_index(State = #mqstate { on_sync = ?BLANK_SYNC }) -> + State; +tx_commit_index(State = #mqstate { on_sync = #sync { + acks_persistent = SPAcks, + acks_all = SAcks, + pubs = SPubs, + funs = SFuns }, + durable = IsDurable }) -> + PAcks = lists:append(SPAcks), + Acks = lists:append(SAcks), + {_Guids, NewState} = ack(Acks, State), + Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), + {Msg, MsgProps} <- lists:reverse(PubsN)], + {SeqIds, State1 = #mqstate { index_state = IndexState }} = + lists:foldl( + fun ({Msg = #basic_message { is_persistent = IsPersistent }, + MsgProps}, + {SeqIdsAcc, State2}) -> + IsPersistent1 = IsDurable andalso IsPersistent, + {SeqId, State3} = + publish(Msg, MsgProps, false, IsPersistent1, State2), + {cons_if(IsPersistent1, SeqId, SeqIdsAcc), State3} + end, {PAcks, NewState}, Pubs), + IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), + [ Fun() || Fun <- lists:reverse(SFuns) ], + reduce_memory_use( + State1 #mqstate { index_state = IndexState1, on_sync = ?BLANK_SYNC }). + +purge_betas_and_deltas(LensByStore, + State = #mqstate { q3 = Q3, + index_state = IndexState, + msg_store_clients = MSCState }) -> + case bpqueue:is_empty(Q3) of + true -> {LensByStore, State}; + false -> {LensByStore1, IndexState1} = + remove_queue_entries(fun beta_fold/3, Q3, + LensByStore, IndexState, MSCState), + purge_betas_and_deltas(LensByStore1, + maybe_deltas_to_betas( + State #mqstate { + q3 = bpqueue:new(), + index_state = IndexState1 })) + end. + +remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> + {GuidsByStore, Delivers, Acks} = + Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), + ok = orddict:fold(fun (IsPersistent, Guids, ok) -> + msg_store_remove(MSCState, IsPersistent, Guids) + end, ok, GuidsByStore), + {sum_guids_by_store_to_len(LensByStore, GuidsByStore), + rabbit_queue_index:ack(Acks, + rabbit_queue_index:deliver(Delivers, IndexState))}. + +remove_queue_entries1( + #msg_status { guid = Guid, seq_id = SeqId, + is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, + {GuidsByStore, Delivers, Acks}) -> + {case MsgOnDisk of + true -> rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore); + false -> GuidsByStore + end, + cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), + cons_if(IndexOnDisk, SeqId, Acks)}. + +sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> + orddict:fold( + fun (IsPersistent, Guids, LensByStore1) -> + orddict:update_counter(IsPersistent, length(Guids), LensByStore1) + end, LensByStore, GuidsByStore). + +%%---------------------------------------------------------------------------- +%% Internal gubbins for publishing +%%---------------------------------------------------------------------------- + +publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, + MsgProps = #message_properties { needs_confirming = NeedsConfirming }, + IsDelivered, MsgOnDisk, + State = #mqstate { q1 = Q1, q3 = Q3, q4 = Q4, + next_seq_id = SeqId, + len = Len, + in_counter = InCount, + persistent_count = PCount, + durable = IsDurable, + ram_msg_count = RamMsgCount, + unconfirmed = Unconfirmed }) -> + IsPersistent1 = IsDurable andalso IsPersistent, + MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) + #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, + {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), + State2 = case bpqueue:is_empty(Q3) of + false -> State1 #mqstate { q1 = queue:in(m(MsgStatus1), Q1) }; + true -> State1 #mqstate { q4 = queue:in(m(MsgStatus1), Q4) } + end, + PCount1 = PCount + one_if(IsPersistent1), + Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), + {SeqId, State2 #mqstate { next_seq_id = SeqId + 1, + len = Len + 1, + in_counter = InCount + 1, + persistent_count = PCount1, + ram_msg_count = RamMsgCount + 1, + unconfirmed = Unconfirmed1 }}. + +maybe_write_msg_to_disk(_Force, MsgStatus = #msg_status { + msg_on_disk = true }, _MSCState) -> + MsgStatus; +maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { + msg = Msg, guid = Guid, + is_persistent = IsPersistent }, MSCState) + when Force orelse IsPersistent -> + Msg1 = Msg #basic_message { + %% don't persist any recoverable decoded properties + content = rabbit_binary_parser:clear_decoded_content( + Msg #basic_message.content)}, + ok = msg_store_write(MSCState, IsPersistent, Guid, Msg1), + MsgStatus #msg_status { msg_on_disk = true }; +maybe_write_msg_to_disk(_Force, MsgStatus, _MSCState) -> + MsgStatus. + +maybe_write_index_to_disk(_Force, MsgStatus = #msg_status { + index_on_disk = true }, IndexState) -> + true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION + {MsgStatus, IndexState}; +maybe_write_index_to_disk(Force, MsgStatus = #msg_status { + guid = Guid, + seq_id = SeqId, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_props = MsgProps}, IndexState) + when Force orelse IsPersistent -> + true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION + IndexState1 = rabbit_queue_index:publish( + Guid, SeqId, MsgProps, IsPersistent, IndexState), + {MsgStatus #msg_status { index_on_disk = true }, + maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; +maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> + {MsgStatus, IndexState}. + +maybe_write_to_disk(ForceMsg, ForceIndex, MsgStatus, + State = #mqstate { index_state = IndexState, + msg_store_clients = MSCState }) -> + MsgStatus1 = maybe_write_msg_to_disk(ForceMsg, MsgStatus, MSCState), + {MsgStatus2, IndexState1} = + maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), + {MsgStatus2, State #mqstate { index_state = IndexState1 }}. + +%%---------------------------------------------------------------------------- +%% Internal gubbins for acks +%%---------------------------------------------------------------------------- + +record_pending_ack(#msg_status { seq_id = SeqId, + guid = Guid, + is_persistent = IsPersistent, + msg_on_disk = MsgOnDisk, + msg_props = MsgProps } = MsgStatus, + State = #mqstate { pending_ack = PA, + ram_ack_index = RAI, + ack_in_counter = AckInCount}) -> + {AckEntry, RAI1} = + case MsgOnDisk of + true -> {{IsPersistent, Guid, MsgProps}, RAI}; + false -> {MsgStatus, gb_trees:insert(SeqId, Guid, RAI)} + end, + PA1 = dict:store(SeqId, AckEntry, PA), + State #mqstate { pending_ack = PA1, + ram_ack_index = RAI1, + ack_in_counter = AckInCount + 1}. + +remove_pending_ack(KeepPersistent, + State = #mqstate { pending_ack = PA, + index_state = IndexState, + msg_store_clients = MSCState }) -> + {PersistentSeqIds, GuidsByStore, _AllGuids} = + dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), + State1 = State #mqstate { pending_ack = dict:new(), + ram_ack_index = gb_trees:empty() }, + case KeepPersistent of + true -> case orddict:find(false, GuidsByStore) of + error -> State1; + {ok, Guids} -> ok = msg_store_remove(MSCState, false, + Guids), + State1 + end; + false -> IndexState1 = + rabbit_queue_index:ack(PersistentSeqIds, IndexState), + [ok = msg_store_remove(MSCState, IsPersistent, Guids) + || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + State1 #mqstate { index_state = IndexState1 } + end. + +ack(_MsgStoreFun, _Fun, [], State) -> + {[], State}; +ack(MsgStoreFun, Fun, AckTags, State) -> + {{PersistentSeqIds, GuidsByStore, AllGuids}, + State1 = #mqstate { index_state = IndexState, + msg_store_clients = MSCState, + persistent_count = PCount, + ack_out_counter = AckOutCount }} = + lists:foldl( + fun (SeqId, {Acc, State2 = #mqstate { pending_ack = PA, + ram_ack_index = RAI }}) -> + AckEntry = dict:fetch(SeqId, PA), + {accumulate_ack(SeqId, AckEntry, Acc), + Fun(AckEntry, State2 #mqstate { + pending_ack = dict:erase(SeqId, PA), + ram_ack_index = + gb_trees:delete_any(SeqId, RAI)})} + end, {accumulate_ack_init(), State}, AckTags), + IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), + [ok = MsgStoreFun(MSCState, IsPersistent, Guids) + || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( + orddict:new(), GuidsByStore)), + {lists:reverse(AllGuids), + State1 #mqstate { index_state = IndexState1, + persistent_count = PCount1, + ack_out_counter = AckOutCount + length(AckTags) }}. + +accumulate_ack_init() -> {[], orddict:new(), []}. + +accumulate_ack(_SeqId, #msg_status { is_persistent = false, %% ASSERTIONS + msg_on_disk = false, + index_on_disk = false, + guid = Guid }, + {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> + {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}; +accumulate_ack(SeqId, {IsPersistent, Guid, _MsgProps}, + {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> + {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), + rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore), + [Guid | AllGuids]}. + +find_persistent_count(LensByStore) -> + case orddict:find(true, LensByStore) of + error -> 0; + {ok, Len} -> Len + end. + +%%---------------------------------------------------------------------------- +%% Internal plumbing for confirms (aka publisher acks) +%%---------------------------------------------------------------------------- + +remove_confirms(GuidSet, State = #mqstate { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + State #mqstate { msgs_on_disk = gb_sets:difference(MOD, GuidSet), + msg_indices_on_disk = gb_sets:difference(MIOD, GuidSet), + unconfirmed = gb_sets:difference(UC, GuidSet) }. + +msgs_confirmed(GuidSet, State) -> + {gb_sets:to_list(GuidSet), remove_confirms(GuidSet, State)}. + +msgs_written_to_disk(QPid, GuidSet) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + QPid, fun (State = #mqstate { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + msgs_confirmed(gb_sets:intersection(GuidSet, MIOD), + State #mqstate { + msgs_on_disk = + gb_sets:intersection( + gb_sets:union(MOD, GuidSet), UC) }) + end). + +msg_indices_written_to_disk(QPid, GuidSet) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + QPid, fun (State = #mqstate { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + msgs_confirmed(gb_sets:intersection(GuidSet, MOD), + State #mqstate { + msg_indices_on_disk = + gb_sets:intersection( + gb_sets:union(MIOD, GuidSet), UC) }) + end). + +%%---------------------------------------------------------------------------- +%% Phase changes +%%---------------------------------------------------------------------------- + +%% Determine whether a reduction in memory use is necessary, and call +%% functions to perform the required phase changes. The function can +%% also be used to just do the former, by passing in dummy phase +%% change functions. +%% +%% The function does not report on any needed beta->delta conversions, +%% though the conversion function for that is called as necessary. The +%% reason is twofold. Firstly, this is safe because the conversion is +%% only ever necessary just after a transition to a +%% target_ram_count of zero or after an incremental alpha->beta +%% conversion. In the former case the conversion is performed straight +%% away (i.e. any betas present at the time are converted to deltas), +%% and in the latter case the need for a conversion is flagged up +%% anyway. Secondly, this is necessary because we do not have a +%% precise and cheap predicate for determining whether a beta->delta +%% conversion is necessary - due to the complexities of retaining up +%% one segment's worth of messages in q3 - and thus would risk +%% perpetually reporting the need for a conversion when no such +%% conversion is needed. That in turn could cause an infinite loop. +reduce_memory_use(_AlphaBetaFun, _BetaGammaFun, _BetaDeltaFun, _AckFun, + State = #mqstate {target_ram_count = infinity}) -> + {false, State}; +reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, + State = #mqstate { + ram_ack_index = RamAckIndex, + ram_msg_count = RamMsgCount, + target_ram_count = TargetRamCount, + rates = #rates { avg_ingress = AvgIngress, + avg_egress = AvgEgress }, + ack_rates = #rates { avg_ingress = AvgAckIngress, + avg_egress = AvgAckEgress } + }) -> + + {Reduce, State1} = + case chunk_size(RamMsgCount + gb_trees:size(RamAckIndex), + TargetRamCount) of + 0 -> {false, State}; + %% Reduce memory of pending acks and alphas. The order is + %% determined based on which is growing faster. Whichever + %% comes second may very well get a quota of 0 if the + %% first manages to push out the max number of messages. + S1 -> {_, State2} = + lists:foldl(fun (ReduceFun, {QuotaN, StateN}) -> + ReduceFun(QuotaN, StateN) + end, + {S1, State}, + case (AvgAckIngress - AvgAckEgress) > + (AvgIngress - AvgEgress) of + true -> [AckFun, AlphaBetaFun]; + false -> [AlphaBetaFun, AckFun] + end), + {true, State2} + end, + + case State1 #mqstate.target_ram_count of + 0 -> {Reduce, BetaDeltaFun(State1)}; + _ -> case chunk_size(State1 #mqstate.ram_index_count, + permitted_ram_index_count(State1)) of + ?IO_BATCH_SIZE = S2 -> {true, BetaGammaFun(S2, State1)}; + _ -> {Reduce, State1} + end + end. + +limit_ram_acks(0, State) -> + {0, State}; +limit_ram_acks(Quota, State = #mqstate { pending_ack = PA, + ram_ack_index = RAI }) -> + case gb_trees:is_empty(RAI) of + true -> + {Quota, State}; + false -> + {SeqId, Guid, RAI1} = gb_trees:take_largest(RAI), + MsgStatus = #msg_status { + guid = Guid, %% ASSERTION + is_persistent = false, %% ASSERTION + msg_props = MsgProps } = dict:fetch(SeqId, PA), + {_, State1} = maybe_write_to_disk(true, false, MsgStatus, State), + limit_ram_acks(Quota - 1, + State1 #mqstate { + pending_ack = + dict:store(SeqId, {false, Guid, MsgProps}, PA), + ram_ack_index = RAI1 }) + end. + + +reduce_memory_use(State) -> + {_, State1} = reduce_memory_use(fun push_alphas_to_betas/2, + fun limit_ram_index/2, + fun push_betas_to_deltas/1, + fun limit_ram_acks/2, + State), + State1. + +limit_ram_index(Quota, State = #mqstate { q2 = Q2, q3 = Q3, + index_state = IndexState, + ram_index_count = RamIndexCount }) -> + {Q2a, {Quota1, IndexState1}} = limit_ram_index( + fun bpqueue:map_fold_filter_r/4, + Q2, {Quota, IndexState}), + %% TODO: we shouldn't be writing index entries for messages that + %% can never end up in delta due them residing in the only segment + %% held by q3. + {Q3a, {Quota2, IndexState2}} = limit_ram_index( + fun bpqueue:map_fold_filter_r/4, + Q3, {Quota1, IndexState1}), + State #mqstate { q2 = Q2a, q3 = Q3a, + index_state = IndexState2, + ram_index_count = RamIndexCount - (Quota - Quota2) }. + +limit_ram_index(_MapFoldFilterFun, Q, {0, IndexState}) -> + {Q, {0, IndexState}}; +limit_ram_index(MapFoldFilterFun, Q, {Quota, IndexState}) -> + MapFoldFilterFun( + fun erlang:'not'/1, + fun (MsgStatus, {0, _IndexStateN}) -> + false = MsgStatus #msg_status.index_on_disk, %% ASSERTION + stop; + (MsgStatus, {N, IndexStateN}) when N > 0 -> + false = MsgStatus #msg_status.index_on_disk, %% ASSERTION + {MsgStatus1, IndexStateN1} = + maybe_write_index_to_disk(true, MsgStatus, IndexStateN), + {true, m(MsgStatus1), {N-1, IndexStateN1}} + end, {Quota, IndexState}, Q). + +permitted_ram_index_count(#mqstate { len = 0 }) -> + infinity; +permitted_ram_index_count(#mqstate { len = Len, + q2 = Q2, + q3 = Q3, + delta = #delta { count = DeltaCount } }) -> + BetaLen = bpqueue:len(Q2) + bpqueue:len(Q3), + BetaLen - trunc(BetaLen * BetaLen / (Len - DeltaCount)). + +chunk_size(Current, Permitted) + when Permitted =:= infinity orelse Permitted >= Current -> + 0; +chunk_size(Current, Permitted) -> + lists:min([Current - Permitted, ?IO_BATCH_SIZE]). + +fetch_from_q3(State = #mqstate { + q1 = Q1, + q2 = Q2, + delta = #delta { count = DeltaCount }, + q3 = Q3, + q4 = Q4, + ram_index_count = RamIndexCount}) -> + case bpqueue:out(Q3) of + {empty, _Q3} -> + {empty, State}; + {{value, IndexOnDisk, MsgStatus}, Q3a} -> + RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), + true = RamIndexCount1 >= 0, %% ASSERTION + State1 = State #mqstate { q3 = Q3a, + ram_index_count = RamIndexCount1 }, + State2 = + case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of + {true, true} -> + %% q3 is now empty, it wasn't before; delta is + %% still empty. So q2 must be empty, and we + %% know q4 is empty otherwise we wouldn't be + %% loading from q3. As such, we can just set + %% q4 to Q1. + true = bpqueue:is_empty(Q2), %% ASSERTION + true = queue:is_empty(Q4), %% ASSERTION + State1 #mqstate { q1 = queue:new(), + q4 = Q1 }; + {true, false} -> + maybe_deltas_to_betas(State1); + {false, _} -> + %% q3 still isn't empty, we've not touched + %% delta, so the invariants between q1, q2, + %% delta and q3 are maintained + State1 + end, + {loaded, {MsgStatus, State2}} + end. + +maybe_deltas_to_betas(State = #mqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> + State; +maybe_deltas_to_betas(State = #mqstate { + q2 = Q2, + delta = Delta, + q3 = Q3, + index_state = IndexState, + transient_threshold = TransientThreshold }) -> + #delta { start_seq_id = DeltaSeqId, + count = DeltaCount, + end_seq_id = DeltaSeqIdEnd } = Delta, + DeltaSeqId1 = + lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), + DeltaSeqIdEnd]), + {List, IndexState1} = + rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), + {Q3a, IndexState2} = + betas_from_index_entries(List, TransientThreshold, IndexState1), + State1 = State #mqstate { index_state = IndexState2 }, + case bpqueue:len(Q3a) of + 0 -> + %% we ignored every message in the segment due to it being + %% transient and below the threshold + maybe_deltas_to_betas( + State1 #mqstate { + delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); + Q3aLen -> + Q3b = bpqueue:join(Q3, Q3a), + case DeltaCount - Q3aLen of + 0 -> + %% delta is now empty, but it wasn't before, so + %% can now join q2 onto q3 + State1 #mqstate { q2 = bpqueue:new(), + delta = ?BLANK_DELTA, + q3 = bpqueue:join(Q3b, Q2) }; + N when N > 0 -> + Delta1 = #delta { start_seq_id = DeltaSeqId1, + count = N, + end_seq_id = DeltaSeqIdEnd }, + State1 #mqstate { delta = Delta1, + q3 = Q3b } + end + end. + +push_alphas_to_betas(Quota, State) -> + {Quota1, State1} = maybe_push_q1_to_betas(Quota, State), + {Quota2, State2} = maybe_push_q4_to_betas(Quota1, State1), + {Quota2, State2}. + +maybe_push_q1_to_betas(Quota, State = #mqstate { q1 = Q1 }) -> + maybe_push_alphas_to_betas( + fun queue:out/1, + fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, + Q1a, State1 = #mqstate { q3 = Q3, delta = #delta { count = 0 } }) -> + State1 #mqstate { q1 = Q1a, + q3 = bpqueue:in(IndexOnDisk, MsgStatus, Q3) }; + (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, + Q1a, State1 = #mqstate { q2 = Q2 }) -> + State1 #mqstate { q1 = Q1a, + q2 = bpqueue:in(IndexOnDisk, MsgStatus, Q2) } + end, Quota, Q1, State). + +maybe_push_q4_to_betas(Quota, State = #mqstate { q4 = Q4 }) -> + maybe_push_alphas_to_betas( + fun queue:out_r/1, + fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, + Q4a, State1 = #mqstate { q3 = Q3 }) -> + State1 #mqstate { q3 = bpqueue:in_r(IndexOnDisk, MsgStatus, Q3), + q4 = Q4a } + end, Quota, Q4, State). + +maybe_push_alphas_to_betas(_Generator, _Consumer, Quota, _Q, + State = #mqstate { + ram_msg_count = RamMsgCount, + target_ram_count = TargetRamCount }) + when Quota =:= 0 orelse + TargetRamCount =:= infinity orelse + TargetRamCount >= RamMsgCount -> + {Quota, State}; +maybe_push_alphas_to_betas(Generator, Consumer, Quota, Q, State) -> + case Generator(Q) of + {empty, _Q} -> + {Quota, State}; + {{value, MsgStatus}, Qa} -> + {MsgStatus1 = #msg_status { msg_on_disk = true, + index_on_disk = IndexOnDisk }, + State1 = #mqstate { ram_msg_count = RamMsgCount, + ram_index_count = RamIndexCount }} = + maybe_write_to_disk(true, false, MsgStatus, State), + MsgStatus2 = m(MsgStatus1 #msg_status { msg = undefined }), + RamIndexCount1 = RamIndexCount + one_if(not IndexOnDisk), + State2 = State1 #mqstate { ram_msg_count = RamMsgCount - 1, + ram_index_count = RamIndexCount1 }, + maybe_push_alphas_to_betas(Generator, Consumer, Quota - 1, Qa, + Consumer(MsgStatus2, Qa, State2)) + end. + +push_betas_to_deltas(State = #mqstate { q2 = Q2, + delta = Delta, + q3 = Q3, + index_state = IndexState, + ram_index_count = RamIndexCount }) -> + {Delta2, Q2a, RamIndexCount2, IndexState2} = + push_betas_to_deltas(fun (Q2MinSeqId) -> Q2MinSeqId end, + fun bpqueue:out/1, Q2, + RamIndexCount, IndexState), + {Delta3, Q3a, RamIndexCount3, IndexState3} = + push_betas_to_deltas(fun rabbit_queue_index:next_segment_boundary/1, + fun bpqueue:out_r/1, Q3, + RamIndexCount2, IndexState2), + Delta4 = combine_deltas(Delta3, combine_deltas(Delta, Delta2)), + State #mqstate { q2 = Q2a, + delta = Delta4, + q3 = Q3a, + index_state = IndexState3, + ram_index_count = RamIndexCount3 }. + +push_betas_to_deltas(LimitFun, Generator, Q, RamIndexCount, IndexState) -> + case bpqueue:out(Q) of + {empty, _Q} -> + {?BLANK_DELTA, Q, RamIndexCount, IndexState}; + {{value, _IndexOnDisk1, #msg_status { seq_id = MinSeqId }}, _Qa} -> + {{value, _IndexOnDisk2, #msg_status { seq_id = MaxSeqId }}, _Qb} = + bpqueue:out_r(Q), + Limit = LimitFun(MinSeqId), + case MaxSeqId < Limit of + true -> {?BLANK_DELTA, Q, RamIndexCount, IndexState}; + false -> {Len, Qc, RamIndexCount1, IndexState1} = + push_betas_to_deltas(Generator, Limit, Q, 0, + RamIndexCount, IndexState), + {#delta { start_seq_id = Limit, + count = Len, + end_seq_id = MaxSeqId + 1 }, + Qc, RamIndexCount1, IndexState1} + end + end. + +push_betas_to_deltas(Generator, Limit, Q, Count, RamIndexCount, IndexState) -> + case Generator(Q) of + {empty, _Q} -> + {Count, Q, RamIndexCount, IndexState}; + {{value, _IndexOnDisk, #msg_status { seq_id = SeqId }}, _Qa} + when SeqId < Limit -> + {Count, Q, RamIndexCount, IndexState}; + {{value, IndexOnDisk, MsgStatus}, Qa} -> + {RamIndexCount1, IndexState1} = + case IndexOnDisk of + true -> {RamIndexCount, IndexState}; + false -> {#msg_status { index_on_disk = true }, + IndexState2} = + maybe_write_index_to_disk(true, MsgStatus, + IndexState), + {RamIndexCount - 1, IndexState2} + end, + push_betas_to_deltas( + Generator, Limit, Qa, Count + 1, RamIndexCount1, IndexState1) + end. diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 565c61e7..7be0407d 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -296,12 +296,11 @@ -record(sync, { acks_persistent, acks_all, pubs, funs }). %% When we discover, on publish, that we should write some indices to -%% disk for some betas, the RAM_INDEX_BATCH_SIZE sets the number of -%% betas that we must be due to write indices for before we do any -%% work at all. This is both a minimum and a maximum - we don't write -%% fewer than RAM_INDEX_BATCH_SIZE indices out in one go, and we don't -%% write more - we can always come back on the next publish to do -%% more. +%% disk for some betas, the IO_BATCH_SIZE sets the number of betas +%% that we must be due to write indices for before we do any work at +%% all. This is both a minimum and a maximum - we don't write fewer +%% than RAM_INDEX_BATCH_SIZE indices out in one go, and we don't write +%% more - we can always come back on the next publish to do more. -define(IO_BATCH_SIZE, 64). -define(PERSISTENT_MSG_STORE, msg_store_persistent). -define(TRANSIENT_MSG_STORE, msg_store_transient). @@ -906,7 +905,7 @@ cons_if(true, E, L) -> [E | L]; cons_if(false, _E, L) -> L. gb_sets_maybe_insert(false, _Val, Set) -> Set; -%% when requeueing, we re-add a guid to the unconfimred set +%% when requeueing, we re-add a guid to the unconfirmed set gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). msg_status(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, -- cgit v1.2.1 From 67f162a4e233b236cdeb2f86444861519ce9abb4 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 10:35:25 -0800 Subject: Move 2 --- src/rabbit_mnesia_queue.erl | 297 +++++++------------------------------------- 1 file changed, 45 insertions(+), 252 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index f6a87860..bd1307ed 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -1,33 +1,33 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% -module(rabbit_mnesia_queue). @@ -43,8 +43,7 @@ %%---------------------------------------------------------------------------- %% This is Take Three of a simple initial Mnesia implementation of the %% rabbit_backing_queue behavior. This version was created by starting -%% with rabbit_variable_queue.erl, and removing everything -%% unneeded. +%% with rabbit_variable_queue.erl, and removing everything unneeded. %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- @@ -574,7 +573,7 @@ purge(State = #mqstate { q4 = Q4, publish(Msg, MsgProps, State) -> {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), - a(reduce_memory_use(State1)). + a(State1). %%---------------------------------------------------------------------------- %% publish_delivered/4 is called for messages which have already been @@ -605,12 +604,11 @@ publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, State2 = record_pending_ack(m(MsgStatus1), State1), PCount1 = PCount + one_if(IsPersistent1), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, a(reduce_memory_use( - State2 #mqstate { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - unconfirmed = Unconfirmed1 }))}. + {SeqId, a(State2 #mqstate { next_seq_id = SeqId + 1, + out_counter = OutCount + 1, + in_counter = InCount + 1, + persistent_count = PCount1, + unconfirmed = Unconfirmed1 })}. %%---------------------------------------------------------------------------- %% dropwhile/2 drops messages from the head of the queue while the @@ -848,7 +846,7 @@ requeue(AckTags, MsgPropsFun, State) -> State3 end, AckTags, State), - a(reduce_memory_use(State1)). + a(State1). %%---------------------------------------------------------------------------- %% len/1 returns the queue length. @@ -885,8 +883,7 @@ set_ram_duration_target( rates = #rates { avg_egress = AvgEgressRate, avg_ingress = AvgIngressRate }, ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate }, - target_ram_count = TargetRamCount }) -> + avg_ingress = AvgAckIngressRate } }) -> Rate = AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, TargetRamCount1 = @@ -894,13 +891,7 @@ set_ram_duration_target( infinity -> infinity; _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec end, - State1 = State #mqstate { target_ram_count = TargetRamCount1 }, - a(case TargetRamCount1 == infinity orelse - (TargetRamCount =/= infinity andalso - TargetRamCount1 >= TargetRamCount) of - true -> State1; - false -> reduce_memory_use(State1) - end). + a(State #mqstate { target_ram_count = TargetRamCount1 }). %%---------------------------------------------------------------------------- %% ram_duration/1 optionally recalculates the duration internally @@ -990,7 +981,7 @@ needs_idle_timeout(_State) -> %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -idle_timeout(State) -> a(reduce_memory_use(tx_commit_index(State))). +idle_timeout(State) -> a(tx_commit_index(State)). %%---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue @@ -1183,32 +1174,6 @@ betas_from_index_entries(List, TransientThreshold, IndexState) -> rabbit_queue_index:ack(Acks, rabbit_queue_index:deliver(Delivers, IndexState))}. -%% the first arg is the older delta -combine_deltas(?BLANK_DELTA_PATTERN(X), ?BLANK_DELTA_PATTERN(Y)) -> - ?BLANK_DELTA; -combine_deltas(?BLANK_DELTA_PATTERN(X), #delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = B) -> - true = Start + Count =< End, %% ASSERTION - B; -combine_deltas(#delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = A, ?BLANK_DELTA_PATTERN(Y)) -> - true = Start + Count =< End, %% ASSERTION - A; -combine_deltas(#delta { start_seq_id = StartLow, - count = CountLow, - end_seq_id = EndLow }, - #delta { start_seq_id = StartHigh, - count = CountHigh, - end_seq_id = EndHigh }) -> - Count = CountLow + CountHigh, - true = (StartLow =< StartHigh) %% ASSERTIONS - andalso ((StartLow + CountLow) =< EndLow) - andalso ((StartHigh + CountHigh) =< EndHigh) - andalso ((StartLow + Count) =< EndHigh), - #delta { start_seq_id = StartLow, count = Count, end_seq_id = EndHigh }. - beta_fold(Fun, Init, Q) -> bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). @@ -1355,8 +1320,7 @@ tx_commit_index(State = #mqstate { on_sync = #sync { end, {PAcks, NewState}, Pubs), IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), [ Fun() || Fun <- lists:reverse(SFuns) ], - reduce_memory_use( - State1 #mqstate { index_state = IndexState1, on_sync = ?BLANK_SYNC }). + State1 #mqstate { index_state = IndexState1, on_sync = ?BLANK_SYNC }. purge_betas_and_deltas(LensByStore, State = #mqstate { q3 = Q3, @@ -1630,6 +1594,9 @@ msg_indices_written_to_disk(QPid, GuidSet) -> %% one segment's worth of messages in q3 - and thus would risk %% perpetually reporting the need for a conversion when no such %% conversion is needed. That in turn could cause an infinite loop. + +%% This version modified never to call reduce_memory_use/1. + reduce_memory_use(_AlphaBetaFun, _BetaGammaFun, _BetaDeltaFun, _AckFun, State = #mqstate {target_ram_count = infinity}) -> {false, State}; @@ -1674,67 +1641,6 @@ reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, end end. -limit_ram_acks(0, State) -> - {0, State}; -limit_ram_acks(Quota, State = #mqstate { pending_ack = PA, - ram_ack_index = RAI }) -> - case gb_trees:is_empty(RAI) of - true -> - {Quota, State}; - false -> - {SeqId, Guid, RAI1} = gb_trees:take_largest(RAI), - MsgStatus = #msg_status { - guid = Guid, %% ASSERTION - is_persistent = false, %% ASSERTION - msg_props = MsgProps } = dict:fetch(SeqId, PA), - {_, State1} = maybe_write_to_disk(true, false, MsgStatus, State), - limit_ram_acks(Quota - 1, - State1 #mqstate { - pending_ack = - dict:store(SeqId, {false, Guid, MsgProps}, PA), - ram_ack_index = RAI1 }) - end. - - -reduce_memory_use(State) -> - {_, State1} = reduce_memory_use(fun push_alphas_to_betas/2, - fun limit_ram_index/2, - fun push_betas_to_deltas/1, - fun limit_ram_acks/2, - State), - State1. - -limit_ram_index(Quota, State = #mqstate { q2 = Q2, q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Q2a, {Quota1, IndexState1}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q2, {Quota, IndexState}), - %% TODO: we shouldn't be writing index entries for messages that - %% can never end up in delta due them residing in the only segment - %% held by q3. - {Q3a, {Quota2, IndexState2}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q3, {Quota1, IndexState1}), - State #mqstate { q2 = Q2a, q3 = Q3a, - index_state = IndexState2, - ram_index_count = RamIndexCount - (Quota - Quota2) }. - -limit_ram_index(_MapFoldFilterFun, Q, {0, IndexState}) -> - {Q, {0, IndexState}}; -limit_ram_index(MapFoldFilterFun, Q, {Quota, IndexState}) -> - MapFoldFilterFun( - fun erlang:'not'/1, - fun (MsgStatus, {0, _IndexStateN}) -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - stop; - (MsgStatus, {N, IndexStateN}) when N > 0 -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - {MsgStatus1, IndexStateN1} = - maybe_write_index_to_disk(true, MsgStatus, IndexStateN), - {true, m(MsgStatus1), {N-1, IndexStateN1}} - end, {Quota, IndexState}, Q). - permitted_ram_index_count(#mqstate { len = 0 }) -> infinity; permitted_ram_index_count(#mqstate { len = Len, @@ -1832,116 +1738,3 @@ maybe_deltas_to_betas(State = #mqstate { end end. -push_alphas_to_betas(Quota, State) -> - {Quota1, State1} = maybe_push_q1_to_betas(Quota, State), - {Quota2, State2} = maybe_push_q4_to_betas(Quota1, State1), - {Quota2, State2}. - -maybe_push_q1_to_betas(Quota, State = #mqstate { q1 = Q1 }) -> - maybe_push_alphas_to_betas( - fun queue:out/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #mqstate { q3 = Q3, delta = #delta { count = 0 } }) -> - State1 #mqstate { q1 = Q1a, - q3 = bpqueue:in(IndexOnDisk, MsgStatus, Q3) }; - (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #mqstate { q2 = Q2 }) -> - State1 #mqstate { q1 = Q1a, - q2 = bpqueue:in(IndexOnDisk, MsgStatus, Q2) } - end, Quota, Q1, State). - -maybe_push_q4_to_betas(Quota, State = #mqstate { q4 = Q4 }) -> - maybe_push_alphas_to_betas( - fun queue:out_r/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q4a, State1 = #mqstate { q3 = Q3 }) -> - State1 #mqstate { q3 = bpqueue:in_r(IndexOnDisk, MsgStatus, Q3), - q4 = Q4a } - end, Quota, Q4, State). - -maybe_push_alphas_to_betas(_Generator, _Consumer, Quota, _Q, - State = #mqstate { - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount }) - when Quota =:= 0 orelse - TargetRamCount =:= infinity orelse - TargetRamCount >= RamMsgCount -> - {Quota, State}; -maybe_push_alphas_to_betas(Generator, Consumer, Quota, Q, State) -> - case Generator(Q) of - {empty, _Q} -> - {Quota, State}; - {{value, MsgStatus}, Qa} -> - {MsgStatus1 = #msg_status { msg_on_disk = true, - index_on_disk = IndexOnDisk }, - State1 = #mqstate { ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }} = - maybe_write_to_disk(true, false, MsgStatus, State), - MsgStatus2 = m(MsgStatus1 #msg_status { msg = undefined }), - RamIndexCount1 = RamIndexCount + one_if(not IndexOnDisk), - State2 = State1 #mqstate { ram_msg_count = RamMsgCount - 1, - ram_index_count = RamIndexCount1 }, - maybe_push_alphas_to_betas(Generator, Consumer, Quota - 1, Qa, - Consumer(MsgStatus2, Qa, State2)) - end. - -push_betas_to_deltas(State = #mqstate { q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Delta2, Q2a, RamIndexCount2, IndexState2} = - push_betas_to_deltas(fun (Q2MinSeqId) -> Q2MinSeqId end, - fun bpqueue:out/1, Q2, - RamIndexCount, IndexState), - {Delta3, Q3a, RamIndexCount3, IndexState3} = - push_betas_to_deltas(fun rabbit_queue_index:next_segment_boundary/1, - fun bpqueue:out_r/1, Q3, - RamIndexCount2, IndexState2), - Delta4 = combine_deltas(Delta3, combine_deltas(Delta, Delta2)), - State #mqstate { q2 = Q2a, - delta = Delta4, - q3 = Q3a, - index_state = IndexState3, - ram_index_count = RamIndexCount3 }. - -push_betas_to_deltas(LimitFun, Generator, Q, RamIndexCount, IndexState) -> - case bpqueue:out(Q) of - {empty, _Q} -> - {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk1, #msg_status { seq_id = MinSeqId }}, _Qa} -> - {{value, _IndexOnDisk2, #msg_status { seq_id = MaxSeqId }}, _Qb} = - bpqueue:out_r(Q), - Limit = LimitFun(MinSeqId), - case MaxSeqId < Limit of - true -> {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - false -> {Len, Qc, RamIndexCount1, IndexState1} = - push_betas_to_deltas(Generator, Limit, Q, 0, - RamIndexCount, IndexState), - {#delta { start_seq_id = Limit, - count = Len, - end_seq_id = MaxSeqId + 1 }, - Qc, RamIndexCount1, IndexState1} - end - end. - -push_betas_to_deltas(Generator, Limit, Q, Count, RamIndexCount, IndexState) -> - case Generator(Q) of - {empty, _Q} -> - {Count, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk, #msg_status { seq_id = SeqId }}, _Qa} - when SeqId < Limit -> - {Count, Q, RamIndexCount, IndexState}; - {{value, IndexOnDisk, MsgStatus}, Qa} -> - {RamIndexCount1, IndexState1} = - case IndexOnDisk of - true -> {RamIndexCount, IndexState}; - false -> {#msg_status { index_on_disk = true }, - IndexState2} = - maybe_write_index_to_disk(true, MsgStatus, - IndexState), - {RamIndexCount - 1, IndexState2} - end, - push_betas_to_deltas( - Generator, Limit, Qa, Count + 1, RamIndexCount1, IndexState1) - end. -- cgit v1.2.1 From 8eb2717effbe3d40e9a8c6fcaf0dc3b0f183ca2b Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 11:12:44 -0800 Subject: Eliminate q2 --- src/rabbit_mnesia_queue.erl | 164 ++++++++++++++++++++------------------------ 1 file changed, 74 insertions(+), 90 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index bd1307ed..e3852f32 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -1,33 +1,33 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developers of the Original Code are LShift Ltd, -%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, -%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd -%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial -%% Technologies LLC, and Rabbit Technologies Ltd. -%% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift -%% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies -%% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. -%% -%% All Rights Reserved. -%% -%% Contributor(s): ______________________________________. -%% +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% -module(rabbit_mnesia_queue). @@ -70,17 +70,16 @@ %% appears. Instead, gammas are defined by betas who have had their %% queue position recorded on disk. %% -%% In general, messages move q1 -> q2 -> delta -> q3 -> q4, though -%% many of these steps are frequently skipped. q1 and q4 only hold -%% alphas, q2 and q3 hold both betas and gammas (as queues of queues, -%% using the bpqueue module where the block prefix determines whether -%% they're betas or gammas). When a message arrives, its -%% classification is determined. It is then added to the rightmost -%% appropriate queue. +%% In general, messages move q1 -> delta -> q3 -> q4, though many of +%% these steps are frequently skipped. q1 and q4 only hold alphas, q3 +%% holds both betas and gammas (as queues of queues, using the bpqueue +%% module where the block prefix determines whether they're betas or +%% gammas). When a message arrives, its classification is +%% determined. It is then added to the rightmost appropriate queue. %% %% If a new message is determined to be a beta or gamma, q1 is -%% empty. If a new message is determined to be a delta, q1 and q2 are -%% empty (and actually q4 too). +%% empty. If a new message is determined to be a delta, q1 is empty +%% (and actually q4 too). %% %% When removing messages from a queue, if q4 is empty then q3 is read %% directly. If q3 becomes empty then the next segment's worth of @@ -150,12 +149,11 @@ %% %% The conversion of betas to gammas is done in batches of exactly %% ?IO_BATCH_SIZE. This value should not be too small, otherwise the -%% frequent operations on the queues of q2 and q3 will not be -%% effectively amortised (switching the direction of queue access -%% defeats amortisation), nor should it be too big, otherwise -%% converting a batch stalls the queue for too long. Therefore, it -%% must be just right. ram_index_count is used here and is the number -%% of betas. +%% frequent operations on q3 will not be effectively amortised +%% (switching the direction of queue access defeats amortisation), nor +%% should it be too big, otherwise converting a batch stalls the queue +%% for too long. Therefore, it must be just right. ram_index_count is +%% used here and is the number of betas. %% %% The conversion from alphas to betas is also chunked, but only to %% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at @@ -241,7 +239,6 @@ -record(mqstate, { q1, - q2, delta, q3, q4, @@ -254,10 +251,10 @@ on_sync, durable, transient_threshold, - + len, persistent_count, - + target_ram_count, ram_msg_count, ram_msg_count_prev, @@ -335,7 +332,6 @@ -type(state() :: #mqstate { q1 :: queue(), - q2 :: bpqueue:bpqueue(), delta :: delta(), q3 :: bpqueue:bpqueue(), q4 :: queue(), @@ -347,10 +343,10 @@ {any(), binary()}}, on_sync :: sync(), durable :: boolean(), - + len :: non_neg_integer(), persistent_count :: non_neg_integer(), - + transient_threshold :: non_neg_integer(), target_ram_count :: non_neg_integer() | 'infinity', ram_msg_count :: non_neg_integer(), @@ -696,7 +692,7 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { IndexState1 = maybe_write_delivered( IndexOnDisk andalso not IsDelivered, SeqId, IndexState), - + %% 2. Remove from msg_store and queue index, if necessary Rem = fun () -> ok = msg_store_remove(MSCState, IsPersistent, [Guid]) @@ -709,7 +705,7 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { { true, true, true, false} -> Ack(); _ -> IndexState1 end, - + %% 3. If an ack is required, add something sensible to PA {AckTag, State1} = case AckRequired of true -> StateN = record_pending_ack( @@ -718,11 +714,11 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { {SeqId, StateN}; false -> {blank_ack, State} end, - + PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), Len1 = Len - 1, RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), - + {{Msg, IsDelivered, AckTag, Len1}, a(State1 #mqstate { ram_msg_count = RamMsgCount1, out_counter = OutCount + 1, @@ -919,14 +915,14 @@ ram_duration(State = #mqstate { Now = now(), {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), - + {AvgAckEgressRate, AckEgress1} = update_rate(Now, AckTimestamp, AckOutCount, AckEgress), {AvgAckIngressRate, AckIngress1} = update_rate(Now, AckTimestamp, AckInCount, AckIngress), - + RamAckCount = gb_trees:size(RamAckIndex), - + Duration = %% msgs+acks / (msgs+acks/sec) == sec case AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0 of @@ -936,7 +932,7 @@ ram_duration(State = #mqstate { (4 * (AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate)) end, - + {Duration, State #mqstate { rates = Rates #rates { egress = Egress1, @@ -999,7 +995,7 @@ handle_pre_hibernate(State = #mqstate { index_state = IndexState }) -> %% -spec(status/1 :: (state()) -> [{atom(), any()}]). status(#mqstate { - q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, + q1 = Q1, delta = Delta, q3 = Q3, q4 = Q4, len = Len, pending_ack = PA, ram_ack_index = RAI, @@ -1014,7 +1010,6 @@ status(#mqstate { ack_rates = #rates { avg_egress = AvgAckEgressRate, avg_ingress = AvgAckIngressRate } }) -> [ {q1 , queue:len(Q1)}, - {q2 , bpqueue:len(Q2)}, {delta , Delta}, {q3 , bpqueue:len(Q3)}, {q4 , queue:len(Q4)}, @@ -1036,28 +1031,26 @@ status(#mqstate { %% Minor helpers %%---------------------------------------------------------------------------- -a(State = #mqstate { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, +a(State = #mqstate { q1 = Q1, delta = Delta, q3 = Q3, q4 = Q4, len = Len, persistent_count = PersistentCount, ram_msg_count = RamMsgCount, ram_index_count = RamIndexCount }) -> E1 = queue:is_empty(Q1), - E2 = bpqueue:is_empty(Q2), ED = Delta#delta.count == 0, E3 = bpqueue:is_empty(Q3), E4 = queue:is_empty(Q4), LZ = Len == 0, - + true = E1 or not E3, - true = E2 or not ED, true = ED or not E3, true = LZ == (E3 and E4), - + true = Len >= 0, true = PersistentCount >= 0, true = RamMsgCount >= 0, true = RamIndexCount >= 0, - + State. m(MsgStatus = #msg_status { msg = Msg, @@ -1067,7 +1060,7 @@ m(MsgStatus = #msg_status { msg = Msg, true = (not IsPersistent) or IndexOnDisk, true = (not IndexOnDisk) or MsgOnDisk, true = (Msg =/= undefined) or MsgOnDisk, - + MsgStatus. one_if(true ) -> 1; @@ -1188,7 +1181,7 @@ update_rate(Now, Then, Count, {OThen, OCount}) -> init(IsDurable, IndexState, DeltaCount, Terms, PersistentClient, TransientClient) -> {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), - + DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of true -> ?BLANK_DELTA; @@ -1199,7 +1192,6 @@ init(IsDurable, IndexState, DeltaCount, Terms, Now = now(), State = #mqstate { q1 = queue:new(), - q2 = bpqueue:new(), delta = Delta, q3 = bpqueue:new(), q4 = queue:new(), @@ -1211,10 +1203,10 @@ init(IsDurable, IndexState, DeltaCount, Terms, on_sync = ?BLANK_SYNC, durable = IsDurable, transient_threshold = NextSeqId, - + len = DeltaCount1, persistent_count = DeltaCount1, - + target_ram_count = infinity, ram_msg_count = 0, ram_msg_count_prev = 0, @@ -1610,7 +1602,7 @@ reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, ack_rates = #rates { avg_ingress = AvgAckIngress, avg_egress = AvgAckEgress } }) -> - + {Reduce, State1} = case chunk_size(RamMsgCount + gb_trees:size(RamAckIndex), TargetRamCount) of @@ -1631,7 +1623,7 @@ reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, end), {true, State2} end, - + case State1 #mqstate.target_ram_count of 0 -> {Reduce, BetaDeltaFun(State1)}; _ -> case chunk_size(State1 #mqstate.ram_index_count, @@ -1644,10 +1636,9 @@ reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, permitted_ram_index_count(#mqstate { len = 0 }) -> infinity; permitted_ram_index_count(#mqstate { len = Len, - q2 = Q2, q3 = Q3, delta = #delta { count = DeltaCount } }) -> - BetaLen = bpqueue:len(Q2) + bpqueue:len(Q3), + BetaLen = bpqueue:len(Q3), BetaLen - trunc(BetaLen * BetaLen / (Len - DeltaCount)). chunk_size(Current, Permitted) @@ -1658,7 +1649,6 @@ chunk_size(Current, Permitted) -> fetch_from_q3(State = #mqstate { q1 = Q1, - q2 = Q2, delta = #delta { count = DeltaCount }, q3 = Q3, q4 = Q4, @@ -1675,11 +1665,9 @@ fetch_from_q3(State = #mqstate { case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of {true, true} -> %% q3 is now empty, it wasn't before; delta is - %% still empty. So q2 must be empty, and we - %% know q4 is empty otherwise we wouldn't be - %% loading from q3. As such, we can just set - %% q4 to Q1. - true = bpqueue:is_empty(Q2), %% ASSERTION + %% still empty. We know q4 is empty otherwise + %% we wouldn't be loading from q3. As such, we + %% can just set q4 to Q1. true = queue:is_empty(Q4), %% ASSERTION State1 #mqstate { q1 = queue:new(), q4 = Q1 }; @@ -1687,8 +1675,8 @@ fetch_from_q3(State = #mqstate { maybe_deltas_to_betas(State1); {false, _} -> %% q3 still isn't empty, we've not touched - %% delta, so the invariants between q1, q2, - %% delta and q3 are maintained + %% delta, so the invariants between q1, delta + %% and q3 are maintained State1 end, {loaded, {MsgStatus, State2}} @@ -1697,7 +1685,6 @@ fetch_from_q3(State = #mqstate { maybe_deltas_to_betas(State = #mqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> State; maybe_deltas_to_betas(State = #mqstate { - q2 = Q2, delta = Delta, q3 = Q3, index_state = IndexState, @@ -1724,11 +1711,8 @@ maybe_deltas_to_betas(State = #mqstate { Q3b = bpqueue:join(Q3, Q3a), case DeltaCount - Q3aLen of 0 -> - %% delta is now empty, but it wasn't before, so - %% can now join q2 onto q3 - State1 #mqstate { q2 = bpqueue:new(), - delta = ?BLANK_DELTA, - q3 = bpqueue:join(Q3b, Q2) }; + State1 #mqstate { delta = ?BLANK_DELTA, + q3 = Q3b }; N when N > 0 -> Delta1 = #delta { start_seq_id = DeltaSeqId1, count = N, -- cgit v1.2.1 From 94a44c83616c9c28e32d85f37584459de45a955b Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 11:52:09 -0800 Subject: Stripped out more junk. --- src/rabbit_mnesia_queue.erl | 269 ++------------------------------------------ 1 file changed, 12 insertions(+), 257 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index e3852f32..97e5be11 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -88,53 +88,12 @@ %% entries. It is never permitted for delta to hold all the messages %% in the queue. %% -%% The duration indicated to us by the memory_monitor is used to -%% calculate, given our current ingress and egress rates, how many -%% messages we should hold in RAM. We track the ingress and egress -%% rates for both messages and pending acks and rates for both are -%% considered when calculating the number of messages to hold in -%% RAM. When we need to push alphas to betas or betas to gammas, we -%% favour writing out messages that are further from the head of the -%% queue. This minimises writes to disk, as the messages closer to the -%% tail of the queue stay in the queue for longer, thus do not need to -%% be replaced as quickly by sending other messages to disk. -%% %% Whilst messages are pushed to disk and forgotten from RAM as soon %% as requested by a new setting of the queue RAM duration, the %% inverse is not true: we only load messages back into RAM as %% demanded as the queue is read from. Thus only publishes to the %% queue will take up available spare capacity. %% -%% When we report our duration to the memory monitor, we calculate -%% average ingress and egress rates over the last two samples, and -%% then calculate our duration based on the sum of the ingress and -%% egress rates. More than two samples could be used, but it's a -%% balance between responding quickly enough to changes in -%% producers/consumers versus ignoring temporary blips. The problem -%% with temporary blips is that with just a few queues, they can have -%% substantial impact on the calculation of the average duration and -%% hence cause unnecessary I/O. Another alternative is to increase the -%% amqqueue_process:RAM_DURATION_UPDATE_PERIOD to beyond 5 -%% seconds. However, that then runs the risk of being too slow to -%% inform the memory monitor of changes. Thus a 5 second interval, -%% plus a rolling average over the last two samples seems to work -%% well in practice. -%% -%% The sum of the ingress and egress rates is used because the egress -%% rate alone is not sufficient. Adding in the ingress rate means that -%% queues which are being flooded by messages are given more memory, -%% resulting in them being able to process the messages faster (by -%% doing less I/O, or at least deferring it) and thus helping keep -%% their mailboxes empty and thus the queue as a whole is more -%% responsive. If such a queue also has fast but previously idle -%% consumers, the consumer can then start to be driven as fast as it -%% can go, whereas if only egress rate was being used, the incoming -%% messages may have to be written to disk and then read back in, -%% resulting in the hard disk being a bottleneck in driving the -%% consumers. Generally, we want to give Rabbit every chance of -%% getting rid of messages as fast as possible and remaining -%% responsive, and using only the egress rate impacts that goal. -%% %% If a queue is full of transient messages, then the transition from %% betas to deltas will be potentially very expensive as millions of %% entries must be written to disk by the queue_index module. This can @@ -157,8 +116,7 @@ %% %% The conversion from alphas to betas is also chunked, but only to %% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at -%% any one time. This further smooths the effects of changes to the -%% target_ram_count and ensures the queue remains responsive +%% any one time. This further ensures the queue remains responsive %% even when there is a large amount of IO work to do. The %% idle_timeout callback is utilised to ensure that conversions are %% done as promptly as possible whilst ensuring the queue remains @@ -182,17 +140,6 @@ %% to tuple-form, and the corresponding messages are pushed out to %% disk. %% -%% The order in which alphas are pushed to betas and message-form acks -%% are pushed to disk is determined dynamically. We always prefer to -%% push messages for the source (alphas or acks) that is growing the -%% fastest (with growth measured as avg. ingress - avg. egress). In -%% each round of memory reduction a chunk of messages at most -%% ?IO_BATCH_SIZE in size is allocated to be pushed to disk. The -%% fastest growing source will be reduced by as much of this chunk as -%% possible. If there is any remaining allocation in the chunk after -%% the first source has been reduced to zero, the second source will -%% be reduced by as much of the remaining chunk as possible. -%% %% Notes on Clean Shutdown %% (This documents behaviour in variable_queue, queue_index and %% msg_store.) @@ -222,8 +169,8 @@ %% wrong in shutdown (or there was subsequent manual tampering), all %% messages and queues that can be recovered are recovered, safely. %% -%% To delete transient messages lazily, the variable_queue, on -%% startup, stores the next_seq_id reported by the queue_index as the +%% To delete transient messages lazily, the Mnesia queue, on startup, +%% stores the next_seq_id reported by the queue_index as the %% transient_threshold. From that point on, whenever it's reading a %% message off disk via the queue_index, if the seq_id is below this %% threshold and the message is transient then it drops the message @@ -255,24 +202,19 @@ len, persistent_count, - target_ram_count, ram_msg_count, ram_msg_count_prev, ram_ack_count_prev, ram_index_count, out_counter, in_counter, - rates, msgs_on_disk, msg_indices_on_disk, unconfirmed, ack_out_counter, - ack_in_counter, - ack_rates + ack_in_counter }). --record(rates, { egress, ingress, avg_egress, avg_ingress, timestamp }). - -record(msg_status, { seq_id, guid, @@ -310,16 +252,9 @@ -ifdef(use_specs). --type(timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}). -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(rates() :: #rates { egress :: {timestamp(), non_neg_integer()}, - ingress :: {timestamp(), non_neg_integer()}, - avg_egress :: float(), - avg_ingress :: float(), - timestamp :: timestamp() }). - -type(delta() :: #delta { start_seq_id :: non_neg_integer(), count :: non_neg_integer(), end_seq_id :: non_neg_integer() }). @@ -348,19 +283,16 @@ persistent_count :: non_neg_integer(), transient_threshold :: non_neg_integer(), - target_ram_count :: non_neg_integer() | 'infinity', ram_msg_count :: non_neg_integer(), ram_msg_count_prev :: non_neg_integer(), ram_index_count :: non_neg_integer(), out_counter :: non_neg_integer(), in_counter :: non_neg_integer(), - rates :: rates(), msgs_on_disk :: gb_set(), msg_indices_on_disk :: gb_set(), unconfirmed :: gb_set(), ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer(), - ack_rates :: rates() }). + ack_in_counter :: non_neg_integer() }). -include("rabbit_backing_queue_spec.hrl"). @@ -874,20 +806,7 @@ is_empty(State) -> 0 == len(State). %% -spec(set_ram_duration_target/2 :: %% (('undefined' | 'infinity' | number()), state()) -> state()). -set_ram_duration_target( - DurationTarget, State = #mqstate { - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate } }) -> - Rate = - AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, - TargetRamCount1 = - case DurationTarget of - infinity -> infinity; - _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec - end, - a(State #mqstate { target_ram_count = TargetRamCount1 }). +set_ram_duration_target(_DurationTarget, State) -> State. %%---------------------------------------------------------------------------- %% ram_duration/1 optionally recalculates the duration internally @@ -897,61 +816,7 @@ set_ram_duration_target( %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). -ram_duration(State = #mqstate { - rates = #rates { timestamp = Timestamp, - egress = Egress, - ingress = Ingress } = Rates, - ack_rates = #rates { timestamp = AckTimestamp, - egress = AckEgress, - ingress = AckIngress } = ARates, - in_counter = InCount, - out_counter = OutCount, - ack_in_counter = AckInCount, - ack_out_counter = AckOutCount, - ram_msg_count = RamMsgCount, - ram_msg_count_prev = RamMsgCountPrev, - ram_ack_index = RamAckIndex, - ram_ack_count_prev = RamAckCountPrev }) -> - Now = now(), - {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), - {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), - - {AvgAckEgressRate, AckEgress1} = - update_rate(Now, AckTimestamp, AckOutCount, AckEgress), - {AvgAckIngressRate, AckIngress1} = - update_rate(Now, AckTimestamp, AckInCount, AckIngress), - - RamAckCount = gb_trees:size(RamAckIndex), - - Duration = %% msgs+acks / (msgs+acks/sec) == sec - case AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso - AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0 of - true -> infinity; - false -> (RamMsgCountPrev + RamMsgCount + - RamAckCount + RamAckCountPrev) / - (4 * (AvgEgressRate + AvgIngressRate + - AvgAckEgressRate + AvgAckIngressRate)) - end, - - {Duration, State #mqstate { - rates = Rates #rates { - egress = Egress1, - ingress = Ingress1, - avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate, - timestamp = Now }, - ack_rates = ARates #rates { - egress = AckEgress1, - ingress = AckIngress1, - avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate, - timestamp = Now }, - in_counter = 0, - out_counter = 0, - ack_in_counter = 0, - ack_out_counter = 0, - ram_msg_count_prev = RamMsgCount, - ram_ack_count_prev = RamAckCount }}. +ram_duration(State) -> {0, State}. %%---------------------------------------------------------------------------- %% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be @@ -960,13 +825,8 @@ ram_duration(State = #mqstate { %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -needs_idle_timeout(State = #mqstate { on_sync = ?BLANK_SYNC }) -> - {Res, _State} = reduce_memory_use(fun (_Quota, State1) -> {0, State1} end, - fun (_Quota, State1) -> State1 end, - fun (State1) -> State1 end, - fun (_Quota, State1) -> {0, State1} end, - State), - Res; +needs_idle_timeout(_State = #mqstate { on_sync = ?BLANK_SYNC }) -> + false; needs_idle_timeout(_State) -> true. @@ -1000,15 +860,10 @@ status(#mqstate { pending_ack = PA, ram_ack_index = RAI, on_sync = #sync { funs = From }, - target_ram_count = TargetRamCount, ram_msg_count = RamMsgCount, ram_index_count = RamIndexCount, next_seq_id = NextSeqId, - persistent_count = PersistentCount, - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate } }) -> + persistent_count = PersistentCount }) -> [ {q1 , queue:len(Q1)}, {delta , Delta}, {q3 , bpqueue:len(Q3)}, @@ -1016,16 +871,11 @@ status(#mqstate { {len , Len}, {pending_acks , dict:size(PA)}, {outstanding_txns , length(From)}, - {target_ram_count , TargetRamCount}, {ram_msg_count , RamMsgCount}, {ram_ack_count , gb_trees:size(RAI)}, {ram_index_count , RamIndexCount}, {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount}, - {avg_ingress_rate , AvgIngressRate}, - {avg_egress_rate , AvgEgressRate}, - {avg_ack_ingress_rate, AvgAckIngressRate}, - {avg_ack_egress_rate , AvgAckEgressRate} ]. + {persistent_count , PersistentCount} ]. %%---------------------------------------------------------------------------- %% Minor helpers @@ -1170,10 +1020,6 @@ betas_from_index_entries(List, TransientThreshold, IndexState) -> beta_fold(Fun, Init, Q) -> bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). -update_rate(Now, Then, Count, {OThen, OCount}) -> - %% avg over the current period and the previous - {1000000.0 * (Count + OCount) / timer:now_diff(Now, OThen), {Then, Count}}. - %%---------------------------------------------------------------------------- %% Internal major helpers for Public API %%---------------------------------------------------------------------------- @@ -1189,7 +1035,6 @@ init(IsDurable, IndexState, DeltaCount, Terms, count = DeltaCount1, end_seq_id = NextSeqId } end, - Now = now(), State = #mqstate { q1 = queue:new(), delta = Delta, @@ -1207,29 +1052,19 @@ init(IsDurable, IndexState, DeltaCount, Terms, len = DeltaCount1, persistent_count = DeltaCount1, - target_ram_count = infinity, ram_msg_count = 0, ram_msg_count_prev = 0, ram_ack_count_prev = 0, ram_index_count = 0, out_counter = 0, in_counter = 0, - rates = blank_rate(Now, DeltaCount1), msgs_on_disk = gb_sets:new(), msg_indices_on_disk = gb_sets:new(), unconfirmed = gb_sets:new(), ack_out_counter = 0, - ack_in_counter = 0, - ack_rates = blank_rate(Now, 0) }, + ack_in_counter = 0 }, a(maybe_deltas_to_betas(State)). -blank_rate(Timestamp, IngressLength) -> - #rates { egress = {Timestamp, 0}, - ingress = {Timestamp, IngressLength}, - avg_egress = 0.0, - avg_ingress = 0.0, - timestamp = Timestamp }. - msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, MsgPropsFun) -> Self = self(), F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( @@ -1567,86 +1402,6 @@ msg_indices_written_to_disk(QPid, GuidSet) -> %% Phase changes %%---------------------------------------------------------------------------- -%% Determine whether a reduction in memory use is necessary, and call -%% functions to perform the required phase changes. The function can -%% also be used to just do the former, by passing in dummy phase -%% change functions. -%% -%% The function does not report on any needed beta->delta conversions, -%% though the conversion function for that is called as necessary. The -%% reason is twofold. Firstly, this is safe because the conversion is -%% only ever necessary just after a transition to a -%% target_ram_count of zero or after an incremental alpha->beta -%% conversion. In the former case the conversion is performed straight -%% away (i.e. any betas present at the time are converted to deltas), -%% and in the latter case the need for a conversion is flagged up -%% anyway. Secondly, this is necessary because we do not have a -%% precise and cheap predicate for determining whether a beta->delta -%% conversion is necessary - due to the complexities of retaining up -%% one segment's worth of messages in q3 - and thus would risk -%% perpetually reporting the need for a conversion when no such -%% conversion is needed. That in turn could cause an infinite loop. - -%% This version modified never to call reduce_memory_use/1. - -reduce_memory_use(_AlphaBetaFun, _BetaGammaFun, _BetaDeltaFun, _AckFun, - State = #mqstate {target_ram_count = infinity}) -> - {false, State}; -reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, - State = #mqstate { - ram_ack_index = RamAckIndex, - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount, - rates = #rates { avg_ingress = AvgIngress, - avg_egress = AvgEgress }, - ack_rates = #rates { avg_ingress = AvgAckIngress, - avg_egress = AvgAckEgress } - }) -> - - {Reduce, State1} = - case chunk_size(RamMsgCount + gb_trees:size(RamAckIndex), - TargetRamCount) of - 0 -> {false, State}; - %% Reduce memory of pending acks and alphas. The order is - %% determined based on which is growing faster. Whichever - %% comes second may very well get a quota of 0 if the - %% first manages to push out the max number of messages. - S1 -> {_, State2} = - lists:foldl(fun (ReduceFun, {QuotaN, StateN}) -> - ReduceFun(QuotaN, StateN) - end, - {S1, State}, - case (AvgAckIngress - AvgAckEgress) > - (AvgIngress - AvgEgress) of - true -> [AckFun, AlphaBetaFun]; - false -> [AlphaBetaFun, AckFun] - end), - {true, State2} - end, - - case State1 #mqstate.target_ram_count of - 0 -> {Reduce, BetaDeltaFun(State1)}; - _ -> case chunk_size(State1 #mqstate.ram_index_count, - permitted_ram_index_count(State1)) of - ?IO_BATCH_SIZE = S2 -> {true, BetaGammaFun(S2, State1)}; - _ -> {Reduce, State1} - end - end. - -permitted_ram_index_count(#mqstate { len = 0 }) -> - infinity; -permitted_ram_index_count(#mqstate { len = Len, - q3 = Q3, - delta = #delta { count = DeltaCount } }) -> - BetaLen = bpqueue:len(Q3), - BetaLen - trunc(BetaLen * BetaLen / (Len - DeltaCount)). - -chunk_size(Current, Permitted) - when Permitted =:= infinity orelse Permitted >= Current -> - 0; -chunk_size(Current, Permitted) -> - lists:min([Current - Permitted, ?IO_BATCH_SIZE]). - fetch_from_q3(State = #mqstate { q1 = Q1, delta = #delta { count = DeltaCount }, -- cgit v1.2.1 From 96c74329c58b7e442acd01f3cf5be6c275e776f7 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 13:38:45 -0800 Subject: Removed transient threshold. --- src/rabbit_mnesia_queue.erl | 24 ++++++------------------ 1 file changed, 6 insertions(+), 18 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 97e5be11..887e77af 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -169,16 +169,8 @@ %% wrong in shutdown (or there was subsequent manual tampering), all %% messages and queues that can be recovered are recovered, safely. %% -%% To delete transient messages lazily, the Mnesia queue, on startup, -%% stores the next_seq_id reported by the queue_index as the -%% transient_threshold. From that point on, whenever it's reading a -%% message off disk via the queue_index, if the seq_id is below this -%% threshold and the message is transient then it drops the message -%% (the message itself won't exist on disk because it would have been -%% stored in the transient msg_store which would have had its saved -%% state nuked on startup). This avoids the expensive operation of -%% scanning the entire queue on startup in order to delete transient -%% messages that were only pushed to disk to save memory. +%% May need to add code to throw away transient messages upon +%% initialization, depending on storage strategy. %% %%---------------------------------------------------------------------------- @@ -197,7 +189,6 @@ msg_store_clients, on_sync, durable, - transient_threshold, len, persistent_count, @@ -282,7 +273,6 @@ len :: non_neg_integer(), persistent_count :: non_neg_integer(), - transient_threshold :: non_neg_integer(), ram_msg_count :: non_neg_integer(), ram_msg_count_prev :: non_neg_integer(), ram_index_count :: non_neg_integer(), @@ -991,12 +981,12 @@ persistent_guids(Pubs) -> [Guid || {#basic_message { guid = Guid, is_persistent = true }, _MsgProps} <- Pubs]. -betas_from_index_entries(List, TransientThreshold, IndexState) -> +betas_from_index_entries(List, IndexState) -> {Filtered, Delivers, Acks} = lists:foldr( fun ({Guid, SeqId, MsgProps, IsPersistent, IsDelivered}, {Filtered1, Delivers1, Acks1}) -> - case SeqId < TransientThreshold andalso not IsPersistent of + case not IsPersistent of true -> {Filtered1, cons_if(not IsDelivered, SeqId, Delivers1), [SeqId | Acks1]}; @@ -1047,7 +1037,6 @@ init(IsDurable, IndexState, DeltaCount, Terms, msg_store_clients = {PersistentClient, TransientClient}, on_sync = ?BLANK_SYNC, durable = IsDurable, - transient_threshold = NextSeqId, len = DeltaCount1, persistent_count = DeltaCount1, @@ -1442,8 +1431,7 @@ maybe_deltas_to_betas(State = #mqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> maybe_deltas_to_betas(State = #mqstate { delta = Delta, q3 = Q3, - index_state = IndexState, - transient_threshold = TransientThreshold }) -> + index_state = IndexState }) -> #delta { start_seq_id = DeltaSeqId, count = DeltaCount, end_seq_id = DeltaSeqIdEnd } = Delta, @@ -1453,7 +1441,7 @@ maybe_deltas_to_betas(State = #mqstate { {List, IndexState1} = rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), {Q3a, IndexState2} = - betas_from_index_entries(List, TransientThreshold, IndexState1), + betas_from_index_entries(List, IndexState1), State1 = State #mqstate { index_state = IndexState2 }, case bpqueue:len(Q3a) of 0 -> -- cgit v1.2.1 From cf3929b745a2bce3710af56341a99a0e64960edf Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 14:14:13 -0800 Subject: All queues are temporarily durable. --- src/rabbit_mnesia_queue.erl | 98 +++++++++++++++++---------------------------- 1 file changed, 36 insertions(+), 62 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 887e77af..0553f2bc 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -38,7 +38,7 @@ idle_timeout/1, handle_pre_hibernate/1, status/1]). %% exported for testing only --export([start_msg_store/2, stop_msg_store/0, init/5]). +-export([start_msg_store/2, stop_msg_store/0, init/4]). %%---------------------------------------------------------------------------- %% This is Take Three of a simple initial Mnesia implementation of the @@ -153,12 +153,13 @@ %% queue_index adds to these terms the details of its segments and %% stores the terms in the queue directory. %% +%% All queues are durable in this version. +%% %% Two message stores are used. One is created for persistent messages -%% to durable queues that must survive restarts, and the other is used -%% for all other messages that just happen to need to be written to -%% disk. On start up we can therefore nuke the transient message -%% store, and be sure that the messages in the persistent store are -%% all that we need. +%% that must survive restarts, and the other is used for all other +%% messages that just happen to need to be written to disk. On start +%% up we can therefore nuke the transient message store, and be sure +%% that the messages in the persistent store are all that we need. %% %% The references to the msg_stores are there so that the msg_store %% knows to only trust its saved state if all of the queues it was @@ -188,7 +189,6 @@ index_state, msg_store_clients, on_sync, - durable, len, persistent_count, @@ -268,7 +268,6 @@ msg_store_clients :: 'undefined' | {{any(), binary()}, {any(), binary()}}, on_sync :: sync(), - durable :: boolean(), len :: non_neg_integer(), persistent_count :: non_neg_integer(), @@ -306,7 +305,7 @@ %% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. %%---------------------------------------------------------------------------- -%% start/1 is called on startup with a list of durable queue +%% start/1 is called on startup with a list of (durable) queue %% names. The queues aren't being started at this point, but this call %% allows the backing queue to perform any checking necessary for the %% consistency of those queues, or initialise any other shared @@ -356,23 +355,19 @@ stop_msg_store() -> %% -spec(init/3 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) -> %% state()). -init(QueueName, IsDurable, Recover) -> +init(QueueName, _IsDurable, Recover) -> Self = self(), - init(QueueName, IsDurable, Recover, + init(QueueName, Recover, fun (Guids) -> msgs_written_to_disk(Self, Guids) end, fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). -init(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> +init(QueueName, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), - init(IsDurable, IndexState, 0, [], - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskFun); - false -> undefined - end, + init(IndexState, 0, [], + msg_store_client_init(?PERSISTENT_MSG_STORE, MsgOnDiskFun), msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); -init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> +init(QueueName, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> Terms = rabbit_queue_index:shutdown_terms(QueueName), {PRef, TRef, Terms1} = case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of @@ -393,8 +388,7 @@ init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> rabbit_msg_store:contains(Guid, PersistentClient) end, MsgIdxOnDiskFun), - init(true, IndexState, DeltaCount, Terms1, - PersistentClient, TransientClient). + init(IndexState, DeltaCount, Terms1, PersistentClient, TransientClient). %%---------------------------------------------------------------------------- %% terminate/1 is called on queue shutdown when the queue isn't being @@ -513,14 +507,12 @@ publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, out_counter = OutCount, in_counter = InCount, persistent_count = PCount, - durable = IsDurable, unconfirmed = Unconfirmed }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) + MsgStatus = (msg_status(IsPersistent, SeqId, Msg, MsgProps)) #msg_status { is_delivered = true }, {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), State2 = record_pending_ack(m(MsgStatus1), State1), - PCount1 = PCount + one_if(IsPersistent1), + PCount1 = PCount + one_if(IsPersistent), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), {SeqId, a(State2 #mqstate { next_seq_id = SeqId + 1, out_counter = OutCount + 1, @@ -674,11 +666,10 @@ ack(AckTags, State) -> %% -> state()). tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, - State = #mqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> + State = #mqstate { msg_store_clients = MSCState }) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), - case IsPersistent andalso IsDurable of + case IsPersistent of true -> MsgStatus = msg_status(true, undefined, Msg, MsgProps), #msg_status { msg_on_disk = true } = maybe_write_msg_to_disk(false, MsgStatus, MSCState); @@ -702,14 +693,10 @@ tx_ack(Txn, AckTags, State) -> %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). -tx_rollback(Txn, State = #mqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> +tx_rollback(Txn, State = #mqstate { msg_store_clients = MSCState }) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), - ok = case IsDurable of - true -> msg_store_remove(MSCState, true, persistent_guids(Pubs)); - false -> ok - end, + ok = msg_store_remove(MSCState, true, persistent_guids(Pubs)), {lists:append(AckTags), a(State)}. %%---------------------------------------------------------------------------- @@ -722,15 +709,14 @@ tx_rollback(Txn, State = #mqstate { durable = IsDurable, %% message_properties_transformer(), state()) -> {[ack()], state()}). tx_commit(Txn, Fun, MsgPropsFun, - State = #mqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> + State = #mqstate { msg_store_clients = MSCState }) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), PersistentGuids = persistent_guids(Pubs), HasPersistentPubs = PersistentGuids =/= [], {AckTags1, - a(case IsDurable andalso HasPersistentPubs of + a(case HasPersistentPubs of true -> ok = msg_store_sync( MSCState, true, PersistentGuids, msg_store_callback(PersistentGuids, Pubs, AckTags1, @@ -1014,8 +1000,7 @@ beta_fold(Fun, Init, Q) -> %% Internal major helpers for Public API %%---------------------------------------------------------------------------- -init(IsDurable, IndexState, DeltaCount, Terms, - PersistentClient, TransientClient) -> +init(IndexState, DeltaCount, Terms, PersistentClient, TransientClient) -> {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), @@ -1036,7 +1021,6 @@ init(IsDurable, IndexState, DeltaCount, Terms, index_state = IndexState1, msg_store_clients = {PersistentClient, TransientClient}, on_sync = ?BLANK_SYNC, - durable = IsDurable, len = DeltaCount1, persistent_count = DeltaCount1, @@ -1081,20 +1065,14 @@ tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, acks_all = SAcks, pubs = SPubs, funs = SFuns }, - pending_ack = PA, - durable = IsDurable }) -> + pending_ack = PA }) -> PersistentAcks = - case IsDurable of - true -> [AckTag || AckTag <- AckTags, - case dict:fetch(AckTag, PA) of - #msg_status {} -> - false; - {IsPersistent, _Guid, _MsgProps} -> - IsPersistent - end]; - false -> [] - end, - case IsDurable andalso (HasPersistentPubs orelse PersistentAcks =/= []) of + [AckTag || AckTag <- AckTags, + case dict:fetch(AckTag, PA) of + #msg_status {} -> false; + {IsPersistent, _Guid, _MsgProps} -> IsPersistent + end], + case (HasPersistentPubs orelse PersistentAcks =/= []) of true -> State #mqstate { on_sync = #sync { acks_persistent = [PersistentAcks | SPAcks], @@ -1117,8 +1095,7 @@ tx_commit_index(State = #mqstate { on_sync = #sync { acks_persistent = SPAcks, acks_all = SAcks, pubs = SPubs, - funs = SFuns }, - durable = IsDurable }) -> + funs = SFuns } }) -> PAcks = lists:append(SPAcks), Acks = lists:append(SAcks), {_Guids, NewState} = ack(Acks, State), @@ -1129,10 +1106,9 @@ tx_commit_index(State = #mqstate { on_sync = #sync { fun ({Msg = #basic_message { is_persistent = IsPersistent }, MsgProps}, {SeqIdsAcc, State2}) -> - IsPersistent1 = IsDurable andalso IsPersistent, {SeqId, State3} = - publish(Msg, MsgProps, false, IsPersistent1, State2), - {cons_if(IsPersistent1, SeqId, SeqIdsAcc), State3} + publish(Msg, MsgProps, false, IsPersistent, State2), + {cons_if(IsPersistent, SeqId, SeqIdsAcc), State3} end, {PAcks, NewState}, Pubs), IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), [ Fun() || Fun <- lists:reverse(SFuns) ], @@ -1194,18 +1170,16 @@ publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, len = Len, in_counter = InCount, persistent_count = PCount, - durable = IsDurable, ram_msg_count = RamMsgCount, unconfirmed = Unconfirmed }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) + MsgStatus = (msg_status(IsPersistent, SeqId, Msg, MsgProps)) #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), State2 = case bpqueue:is_empty(Q3) of false -> State1 #mqstate { q1 = queue:in(m(MsgStatus1), Q1) }; true -> State1 #mqstate { q4 = queue:in(m(MsgStatus1), Q4) } end, - PCount1 = PCount + one_if(IsPersistent1), + PCount1 = PCount + one_if(IsPersistent), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), {SeqId, State2 #mqstate { next_seq_id = SeqId + 1, len = Len + 1, -- cgit v1.2.1 From c37dc726adb7c91c799b190c1c6f0dbe9f28653e Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 15:16:59 -0800 Subject: Noted problem with all-durable queues. --- src/rabbit_mnesia_queue.erl | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 0553f2bc..3ce6e5de 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -153,7 +153,9 @@ %% queue_index adds to these terms the details of its segments and %% stores the terms in the queue directory. %% -%% All queues are durable in this version. +%% All queues are durable in this version, however they are +%% requested. (We may need to remember the requested type to catch +%% accidental redeclares.) %% %% Two message stores are used. One is created for persistent messages %% that must survive restarts, and the other is used for all other -- cgit v1.2.1 From 4ad897e221152e2459545d4509103feb63145d12 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 16:20:31 -0800 Subject: Added rabbit_mnesia_queue.erl for Mnesia-backed message queue. --- src/rabbit_mnesia_queue.erl | 1443 +++++++++++++++++++++++++++++++++++++++++ src/rabbit_variable_queue.erl | 13 +- 2 files changed, 1449 insertions(+), 7 deletions(-) create mode 100644 src/rabbit_mnesia_queue.erl diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl new file mode 100644 index 00000000..49fbcf8f --- /dev/null +++ b/src/rabbit_mnesia_queue.erl @@ -0,0 +1,1443 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2010 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_mnesia_queue). + +-export([start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, + tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, + idle_timeout/1, handle_pre_hibernate/1, status/1]). + +%% exported for testing only +-export([start_msg_store/2, stop_msg_store/0, init/4]). + +%%---------------------------------------------------------------------------- +%% This is Take Three of a simple initial Mnesia implementation of the +%% rabbit_backing_queue behavior. This version was created by starting +%% with rabbit_variable_queue.erl, and removing everything unneeded. +%% ---------------------------------------------------------------------------- + +%%---------------------------------------------------------------------------- +%% Definitions: + +%% alpha: this is a message where both the message itself, and its +%% position within the queue are held in RAM +%% +%% beta: this is a message where the message itself is only held on +%% disk, but its position within the queue is held in RAM. +%% +%% gamma: this is a message where the message itself is only held on +%% disk, but its position is both in RAM and on disk. +%% +%% delta: this is a collection of messages, represented by a single +%% term, where the messages and their position are only held on +%% disk. +%% +%% Note that for persistent messages, the message and its position +%% within the queue are always held on disk, *in addition* to being in +%% one of the above classifications. +%% +%% Also note that within this code, the term gamma never +%% appears. Instead, gammas are defined by betas who have had their +%% queue position recorded on disk. +%% +%% In general, messages move q1 -> delta -> q3 -> q4, though many of +%% these steps are frequently skipped. q1 and q4 only hold alphas, q3 +%% holds both betas and gammas (as queues of queues, using the bpqueue +%% module where the block prefix determines whether they're betas or +%% gammas). When a message arrives, its classification is +%% determined. It is then added to the rightmost appropriate queue. +%% +%% If a new message is determined to be a beta or gamma, q1 is +%% empty. If a new message is determined to be a delta, q1 is empty +%% (and actually q4 too). +%% +%% When removing messages from a queue, if q4 is empty then q3 is read +%% directly. If q3 becomes empty then the next segment's worth of +%% messages from delta are read into q3, reducing the size of +%% delta. If the queue is non empty, either q4 or q3 contain +%% entries. It is never permitted for delta to hold all the messages +%% in the queue. +%% +%% Whilst messages are pushed to disk and forgotten from RAM as soon +%% as requested by a new setting of the queue RAM duration, the +%% inverse is not true: we only load messages back into RAM as +%% demanded as the queue is read from. Thus only publishes to the +%% queue will take up available spare capacity. +%% +%% If a queue is full of transient messages, then the transition from +%% betas to deltas will be potentially very expensive as millions of +%% entries must be written to disk by the queue_index module. This can +%% badly stall the queue. In order to avoid this, the proportion of +%% gammas / (betas+gammas) must not be lower than (betas+gammas) / +%% (alphas+betas+gammas). As the queue grows or available memory +%% shrinks, the latter ratio increases, requiring the conversion of +%% more gammas to betas in order to maintain the invariant. At the +%% point at which betas and gammas must be converted to deltas, there +%% should be very few betas remaining, thus the transition is fast (no +%% work needs to be done for the gamma -> delta transition). +%% +%% The conversion of betas to gammas is done in batches of exactly +%% ?IO_BATCH_SIZE. This value should not be too small, otherwise the +%% frequent operations on q3 will not be effectively amortised +%% (switching the direction of queue access defeats amortisation), nor +%% should it be too big, otherwise converting a batch stalls the queue +%% for too long. Therefore, it must be just right. ram_index_count is +%% used here and is the number of betas. +%% +%% The conversion from alphas to betas is also chunked, but only to +%% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at +%% any one time. This further ensures the queue remains responsive +%% even when there is a large amount of IO work to do. The +%% idle_timeout callback is utilised to ensure that conversions are +%% done as promptly as possible whilst ensuring the queue remains +%% responsive. +%% +%% In the queue we keep track of both messages that are pending +%% delivery and messages that are pending acks. This ensures that +%% purging (deleting the former) and deletion (deleting the former and +%% the latter) are both cheap and do require any scanning through qi +%% segments. +%% +%% Pending acks are recorded in memory either as the tuple {SeqId, +%% Guid, MsgProps} (tuple-form) or as the message itself (message- +%% form). Acks for persistent messages are always stored in the tuple- +%% form. Acks for transient messages are also stored in tuple-form if +%% the message has been sent to disk as part of the memory reduction +%% process. For transient messages that haven't already been written +%% to disk, acks are stored in message-form. +%% +%% During memory reduction, acks stored in message-form are converted +%% to tuple-form, and the corresponding messages are pushed out to +%% disk. +%% +%% Notes on Clean Shutdown +%% (This documents behaviour in variable_queue, queue_index and +%% msg_store.) +%% +%% In order to try to achieve as fast a start-up as possible, if a +%% clean shutdown occurs, we try to save out state to disk to reduce +%% work on startup. In the msg_store this takes the form of the +%% index_module's state, plus the file_summary ets table, and client +%% refs. In the VQ, this takes the form of the count of persistent +%% messages in the queue and references into the msg_stores. The +%% queue_index adds to these terms the details of its segments and +%% stores the terms in the queue directory. +%% +%% All queues are durable in this version, however they are +%% requested. (We may need to remember the requested type to catch +%% accidental redeclares.) +%% +%% Two message stores are used. One is created for persistent messages +%% that must survive restarts, and the other is used for all other +%% messages that just happen to need to be written to disk. On sta t +%% up we can therefore nuke the transient message store, and be sure +%% that the messages in the persistent store are all that we need. +%% +%% The references to the msg_stores are there so that the msg_store +%% knows to only trust its saved state if all of the queues it was +%% previously talking to come up cleanly. Likewise, the queues +%% themselves (esp queue_index) skips work in init if all the queues +%% and msg_store were shutdown cleanly. This gives both good speed +%% improvements and also robustness so that if anything possibly went +%% wrong in shutdown (or there was subsequent manual tampering), all +%% messages and queues that can be recovered are recovered, safely. +%% +%% May need to add code to throw away transient messages upon +%% initialization, depending on storage strategy. +%% +%%---------------------------------------------------------------------------- + +-behaviour(rabbit_backing_queue). + +-record(mqstate, + { q1, + delta, + q3, + q4, + next_seq_id, + pending_ack, + pending_ack_index, + ram_ack_index, + index_state, + msg_store_clients, + on_sync, + + len, + persistent_count, + + ram_msg_count, + ram_msg_count_prev, + ram_ack_count_prev, + ram_index_count, + out_counter, + in_counter, + msgs_on_disk, + msg_indices_on_disk, + unconfirmed, + ack_out_counter, + ack_in_counter + }). + +-record(msg_status, + { seq_id, + guid, + msg, + is_persistent, + is_delivered, + msg_on_disk, + index_on_disk, + msg_props + }). + +-record(delta, + { start_seq_id, %% start_seq_id is inclusive + count, + end_seq_id %% end_seq_id is exclusive + }). + +-record(tx, { pending_messages, pending_acks }). + +-record(sync, { acks_persistent, acks_all, pubs, funs }). + +%% When we discover, on publish, that we should write some indices to +%% disk for some betas, the IO_BATCH_SIZE sets the number of betas +%% that we must be due to write indices for before we do any work at +%% all. This is both a minimum and a maximum - we don't write fewer +%% than RAM_INDEX_BATCH_SIZE indices out in one go, and we don't write +%% more - we can always come back on the next publish to do more. +-define(IO_BATCH_SIZE, 64). +-define(PERSISTENT_MSG_STORE, msg_store_persistent). +-define(TRANSIENT_MSG_STORE, msg_store_transient). + +-include("rabbit.hrl"). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(seq_id() :: non_neg_integer()). +-type(ack() :: seq_id() | 'blank_ack'). + +-type(delta() :: #delta { start_seq_id :: non_neg_integer(), + count :: non_neg_integer(), + end_seq_id :: non_neg_integer() }). + +-type(sync() :: #sync { acks_persistent :: [[seq_id()]], + acks_all :: [[seq_id()]], + pubs :: [{message_properties_transformer(), + [rabbit_types:basic_message()]}], + funs :: [fun (() -> any())] }). + +-type(state() :: #mqstate { + q1 :: queue(), + delta :: delta(), + q3 :: bpqueue:bpqueue(), + q4 :: queue(), + next_seq_id :: seq_id(), + pending_ack :: dict(), + ram_ack_index :: gb_tree(), + index_state :: any(), + msg_store_clients :: 'undefined' | {{any(), binary()}, + {any(), binary()}}, + on_sync :: sync(), + + len :: non_neg_integer(), + persistent_count :: non_neg_integer(), + + ram_msg_count :: non_neg_integer(), + ram_msg_count_prev :: non_neg_integer(), + ram_index_count :: non_neg_integer(), + out_counter :: non_neg_integer(), + in_counter :: non_neg_integer(), + msgs_on_disk :: gb_set(), + msg_indices_on_disk :: gb_set(), + unconfirmed :: gb_set(), + ack_out_counter :: non_neg_integer(), + ack_in_counter :: non_neg_integer() }). + +-include("rabbit_backing_queue_spec.hrl"). + +-endif. + +-define(BLANK_DELTA, #delta { start_seq_id = undefined, + count = 0, + end_seq_id = undefined }). +-define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, + count = 0, + end_seq_id = Z }). + +-define(BLANK_SYNC, #sync { acks_persistent = [], + acks_all = [], + pubs = [], + funs = [] }). + +%%---------------------------------------------------------------------------- +%% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. + +%%---------------------------------------------------------------------------- +%% start/1 is called on startup with a list of (durable) queue +%% names. The queues aren't being started at this point, but this call +%% allows the backing queue to perform any checking necessary for the +%% consistency of those queues, or initialise any other shared +%% resources. + +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). + +%%---------------------------------------------------------------------------- +%% Public API +%%---------------------------------------------------------------------------- + +start(DurableQueues) -> + {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), + start_msg_store( + [Ref || Terms <- AllTerms, + begin + Ref = proplists:get_value(persistent_ref, Terms), + Ref =/= undefined + end], + StartFunState). + +%%---------------------------------------------------------------------------- +%% stop/0 is called to tear down any state/resources. NB: +%% Implementations should not depend on this function being called on +%% shutdown and instead should hook into the rabbit supervision +%% hierarchy. + +%% -spec(stop/0 :: () -> 'ok'). + +stop() -> stop_msg_store(). + +start_msg_store(Refs, StartFunState) -> + ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, + [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), + undefined, {fun (ok) -> finished end, ok}]), + ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, + [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), + Refs, StartFunState]). + +stop_msg_store() -> + ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), + ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). + +%%---------------------------------------------------------------------------- +%% init/3 initializes one backing queue and its state. + +%% -spec(init/3 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) -> +%% state()). + +init(QueueName, _IsDurable, Recover) -> + Self = self(), + init(QueueName, Recover, + fun (Guids) -> msgs_written_to_disk(Self, Guids) end, + fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). + +init(QueueName, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> + IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), + init(IndexState, 0, [], + msg_store_client_init(?PERSISTENT_MSG_STORE, MsgOnDiskFun), + msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); + +init(QueueName, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> + Terms = rabbit_queue_index:shutdown_terms(QueueName), + {PRef, TRef, Terms1} = + case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of + [] -> {proplists:get_value(persistent_ref, Terms), + proplists:get_value(transient_ref, Terms), + Terms}; + _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} + end, + PersistentClient = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, + PRef, MsgOnDiskFun), + TransientClient = rabbit_msg_store:client_init(?TRANSIENT_MSG_STORE, + TRef, undefined), + {DeltaCount, IndexState} = + rabbit_queue_index:recover( + QueueName, Terms1, + rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), + fun (Guid) -> + rabbit_msg_store:contains(Guid, PersistentClient) + end, + MsgIdxOnDiskFun), + init(IndexState, DeltaCount, Terms1, PersistentClient, TransientClient). + +%%---------------------------------------------------------------------------- +%% terminate/1 is called on queue shutdown when the queue isn't being +%% deleted. + +%% -spec(terminate/1 :: (state()) -> state()). + +terminate(State) -> + State1 = #mqstate { persistent_count = PCount, + index_state = IndexState, + msg_store_clients = {MSCStateP, MSCStateT} } = + remove_pending_ack(true, tx_commit_index(State)), + PRef = case MSCStateP of + undefined -> undefined; + _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), + rabbit_msg_store:client_ref(MSCStateP) + end, + ok = rabbit_msg_store:client_terminate(MSCStateT), + TRef = rabbit_msg_store:client_ref(MSCStateT), + Terms = [{persistent_ref, PRef}, + {transient_ref, TRef}, + {persistent_count, PCount}], + a(State1 #mqstate { index_state = rabbit_queue_index:terminate( + Terms, IndexState), + msg_store_clients = undefined }). + +%%---------------------------------------------------------------------------- +%% delete_and_terminate/1 is called when the queue is terminating and +%% needs to delete all its content. The only difference between purge +%% and delete is that delete also needs to delete everything that's +%% been delivered and not ack'd. + +%% -spec(delete_and_terminate/1 :: (state()) -> state()). + +%% the only difference between purge and delete is that delete also +%% needs to delete everything that's been delivered and not ack'd. + +delete_and_terminate(State) -> + %% TODO: there is no need to interact with qi at all - which we do + %% as part of 'purge' and 'remove_pending_ack', other than + %% deleting it. + {_PurgeCount, State1} = purge(State), + State2 = #mqstate { index_state = IndexState, + msg_store_clients = {MSCStateP, MSCStateT} } = + remove_pending_ack(false, State1), + IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), + case MSCStateP of + undefined -> ok; + _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) + end, + rabbit_msg_store:client_delete_and_terminate(MSCStateT), + a(State2 #mqstate { index_state = IndexState1, + msg_store_clients = undefined }). + +%%---------------------------------------------------------------------------- +%% purge/1 removes all messages in the queue, but not messages which +%% have been fetched and are pending acks. + +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(State = #mqstate { q4 = Q4, + index_state = IndexState, + msg_store_clients = MSCState, + len = Len, + persistent_count = PCount }) -> + %% TODO: when there are no pending acks, which is a common case, + %% we could simply wipe the qi instead of issuing delivers and + %% acks for all the messages. + {LensByStore, IndexState1} = remove_queue_entries( + fun rabbit_misc:queue_fold/3, Q4, + orddict:new(), IndexState, MSCState), + {LensByStore1, State1 = #mqstate { q1 = Q1, + index_state = IndexState2, + msg_store_clients = MSCState1 }} = + purge_betas_and_deltas(LensByStore, + State #mqstate { q4 = queue:new(), + index_state = IndexState1 }), + {LensByStore2, IndexState3} = remove_queue_entries( + fun rabbit_misc:queue_fold/3, Q1, + LensByStore1, IndexState2, MSCState1), + PCount1 = PCount - find_persistent_count(LensByStore2), + {Len, a(State1 #mqstate { q1 = queue:new(), + index_state = IndexState3, + len = 0, + ram_msg_count = 0, + ram_index_count = 0, + persistent_count = PCount1 })}. + +%%---------------------------------------------------------------------------- +%% publish/3 publishes a message. + +%% -spec(publish/3 :: (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) -> state()). + +publish(Msg, MsgProps, State) -> + {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), + a(State1). + +%%---------------------------------------------------------------------------- +%% publish_delivered/4 is called for messages which have already been +%% passed straight out to a client. The queue will be empty for these +%% calls (i.e. saves the round trip through the backing queue). + +%% -spec(publish_delivered/4 :: (ack_required(), rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {ack(), state()}). + +publish_delivered(false, _Msg, _MsgProps, State = #mqstate { len = 0 }) -> + {blank_ack, a(State)}; +publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, + guid = Guid }, + MsgProps = #message_properties { + needs_confirming = NeedsConfirming }, + State = #mqstate { len = 0, + next_seq_id = SeqId, + out_counter = OutCount, + in_counter = InCount, + persistent_count = PCount, + unconfirmed = Unconfirmed }) -> + MsgStatus = (msg_status(IsPersistent, SeqId, Msg, MsgProps)) + #msg_status { is_delivered = true }, + {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), + State2 = record_pending_ack(m(MsgStatus1), State1), + PCount1 = PCount + one_if(IsPersistent), + Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), + {SeqId, a(State2 #mqstate { next_seq_id = SeqId + 1, + out_counter = OutCount + 1, + in_counter = InCount + 1, + persistent_count = PCount1, + unconfirmed = Unconfirmed1 })}. + +%%---------------------------------------------------------------------------- +%% dropwhile/2 drops messages from the head of the queue while the +%% supplied predicate returns true. + +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). + +dropwhile(Pred, State) -> + {_OkOrEmpty, State1} = dropwhile1(Pred, State), + State1. + +dropwhile1(Pred, State) -> + internal_queue_out( + fun(MsgStatus = #msg_status { msg_props = MsgProps }, State1) -> + case Pred(MsgProps) of + true -> + {_, State2} = internal_fetch(false, MsgStatus, State1), + dropwhile1(Pred, State2); + false -> + %% message needs to go back into Q4 (or maybe go + %% in for the first time if it was loaded from + %% Q3). Also the msg contents might not be in + %% RAM, so read them in now + {MsgStatus1, State2 = #mqstate { q4 = Q4 }} = + read_msg(MsgStatus, State1), + {ok, State2 #mqstate {q4 = queue:in_r(MsgStatus1, Q4) }} + end + end, State). + +%%---------------------------------------------------------------------------- +%% fetch/2 produces the next message. + +%% -spec(fetch/2 :: (ack_required(), state()) -> {fetch_result(), state()}). + +fetch(AckRequired, State) -> + internal_queue_out( + fun(MsgStatus, State1) -> + %% it's possible that the message wasn't read from disk + %% at this point, so read it in. + {MsgStatus1, State2} = read_msg(MsgStatus, State1), + internal_fetch(AckRequired, MsgStatus1, State2) + end, State). + +internal_queue_out(Fun, State = #mqstate { q4 = Q4 }) -> + case queue:out(Q4) of + {empty, _Q4} -> + case fetch_from_q3(State) of + {empty, State1} = Result -> a(State1), Result; + {loaded, {MsgStatus, State1}} -> Fun(MsgStatus, State1) + end; + {{value, MsgStatus}, Q4a} -> + Fun(MsgStatus, State #mqstate { q4 = Q4a }) + end. + +read_msg(MsgStatus = #msg_status { msg = undefined, + guid = Guid, + is_persistent = IsPersistent }, + State = #mqstate { ram_msg_count = RamMsgCount, + msg_store_clients = MSCState}) -> + {{ok, Msg = #basic_message {}}, MSCState1} = + msg_store_read(MSCState, IsPersistent, Guid), + {MsgStatus #msg_status { msg = Msg }, + State #mqstate { ram_msg_count = RamMsgCount + 1, + msg_store_clients = MSCState1 }}; +read_msg(MsgStatus, State) -> + {MsgStatus, State}. + +internal_fetch(AckRequired, MsgStatus = #msg_status { + seq_id = SeqId, + guid = Guid, + msg = Msg, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk }, + State = #mqstate {ram_msg_count = RamMsgCount, + out_counter = OutCount, + index_state = IndexState, + msg_store_clients = MSCState, + len = Len, + persistent_count = PCount }) -> + %% 1. Mark it delivered if necessary + IndexState1 = maybe_write_delivered( + IndexOnDisk andalso not IsDelivered, + SeqId, IndexState), + + %% 2. Remove from msg_store and queue index, if necessary + Rem = fun () -> + ok = msg_store_remove(MSCState, IsPersistent, [Guid]) + end, + Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, + IndexState2 = + case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of + {false, true, false, _} -> Rem(), IndexState1; + {false, true, true, _} -> Rem(), Ack(); + { true, true, true, false} -> Ack(); + _ -> IndexState1 + end, + + %% 3. If an ack is required, add something sensible to PA + {AckTag, State1} = case AckRequired of + true -> StateN = record_pending_ack( + MsgStatus #msg_status { + is_delivered = true }, State), + {SeqId, StateN}; + false -> {blank_ack, State} + end, + + PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), + Len1 = Len - 1, + RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), + + {{Msg, IsDelivered, AckTag, Len1}, + a(State1 #mqstate { ram_msg_count = RamMsgCount1, + out_counter = OutCount + 1, + index_state = IndexState2, + len = Len1, + persistent_count = PCount1 })}. + +%%---------------------------------------------------------------------------- +%% ack/2 acknowledges messages. Acktags supplied are for messages +%% which can now be forgotten about. Must return 1 guid per Ack, in +%% the same order as Acks. + +%% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). + +ack(AckTags, State) -> + {Guids, State1} = + ack(fun msg_store_remove/3, + fun ({_IsPersistent, Guid, _MsgProps}, State1) -> + remove_confirms(gb_sets:singleton(Guid), State1); + (#msg_status{msg = #basic_message { guid = Guid }}, State1) -> + remove_confirms(gb_sets:singleton(Guid), State1) + end, + AckTags, State), + {Guids, a(State1)}. + +%%---------------------------------------------------------------------------- +%% tx_publish/4 is a publish, but in the context of a transaction. + +%% -spec(tx_publish/4 :: (rabbit_types:txn(), rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> state()). + +tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, + State = #mqstate { msg_store_clients = MSCState }) -> + Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), + store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), + case IsPersistent of + true -> MsgStatus = msg_status(true, undefined, Msg, MsgProps), + #msg_status { msg_on_disk = true } = + maybe_write_msg_to_disk(false, MsgStatus, MSCState); + false -> ok + end, + a(State). + +%%---------------------------------------------------------------------------- +%% tx_ack/3 acks, but in the context of a transaction. + +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). + +tx_ack(Txn, AckTags, State) -> + Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), + store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), + State. + +%%---------------------------------------------------------------------------- +%% tx_rollback/2 undoes anything which has been done in the context of +%% the specified transaction. + +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + +tx_rollback(Txn, State = #mqstate { msg_store_clients = MSCState }) -> + #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), + erase_tx(Txn), + ok = msg_store_remove(MSCState, true, persistent_guids(Pubs)), + {lists:append(AckTags), a(State)}. + +%%---------------------------------------------------------------------------- +%% tx_commit/4 commits a transaction. The Fun passed in must be called +%% once the messages have really been commited. This CPS permits the +%% possibility of commit coalescing. + +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), fun (() -> any()), +%% message_properties_transformer(), state()) -> {[ack()], state()}). + +tx_commit(Txn, Fun, MsgPropsFun, + State = #mqstate { msg_store_clients = MSCState }) -> + #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), + erase_tx(Txn), + AckTags1 = lists:append(AckTags), + PersistentGuids = persistent_guids(Pubs), + HasPersistentPubs = PersistentGuids =/= [], + {AckTags1, + a(case HasPersistentPubs of + true -> ok = msg_store_sync( + MSCState, true, PersistentGuids, + msg_store_callback(PersistentGuids, Pubs, AckTags1, + Fun, MsgPropsFun)), + State; + false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, + Fun, MsgPropsFun, State) + end)}. + +%%---------------------------------------------------------------------------- +%% requeue/3 reinserts messages into the queue which have already been +%% delivered and were pending acknowledgement. + +%% -spec(requeue/3 :: ([ack()], message_properties_transformer(), state()) +%% -> state()). + +requeue(AckTags, MsgPropsFun, State) -> + {_Guids, State1} = + ack(fun msg_store_release/3, + fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> + {_SeqId, State2} = publish(Msg, MsgPropsFun(MsgProps), + true, false, State1), + State2; + ({IsPersistent, Guid, MsgProps}, State1) -> + #mqstate { msg_store_clients = MSCState } = State1, + {{ok, Msg = #basic_message{}}, MSCState1} = + msg_store_read(MSCState, IsPersistent, Guid), + State2 = State1 #mqstate { msg_store_clients = MSCState1 }, + {_SeqId, State3} = publish(Msg, MsgPropsFun(MsgProps), + true, true, State2), + State3 + end, + AckTags, State), + a(State1). + +%%---------------------------------------------------------------------------- +%% len/1 returns the queue length. + +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(#mqstate { len = Len }) -> Len. + +%%---------------------------------------------------------------------------- +%% is_empty/1 returns 'true' if the queue is empty, and 'false' +%% otherwise. + +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(State) -> 0 == len(State). + +%%---------------------------------------------------------------------------- +%% For the next two functions, the assumption is that you're +%% monitoring something like the ingress and egress rates of the +%% queue. The RAM duration is thus the length of time represented by +%% the messages held in RAM given the current rates. If you want to +%% ignore all of this stuff, then do so, and return 0 in +%% ram_duration/1. + +%% set_ram_duration_target states that the target is to have no more +%% messages in RAM than indicated by the duration and the current +%% queue rates. + +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) -> state()). + +set_ram_duration_target(_DurationTarget, State) -> State. + +%%---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the messages in RAM represent given the current rates of +%% the queue. + +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). + +ram_duration(State) -> {0, State}. + +%%---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be +%% called as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires), and 'false' otherwise. + +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +needs_idle_timeout(_State = #mqstate { on_sync = ?BLANK_SYNC }) -> + false; +needs_idle_timeout(_State) -> + true. + +%%---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be +%% called as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires), and 'false' otherwise. + +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +idle_timeout(State) -> a(tx_commit_index(State)). + +%%---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. + +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). + +handle_pre_hibernate(State = #mqstate { index_state = IndexState }) -> + State #mqstate { index_state = rabbit_queue_index:flush(IndexState) }. + +%%---------------------------------------------------------------------------- +%% status/1 exists for debugging purposes, to be able to expose state +%% via rabbitmqctl list_queues backing_queue_status + +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(#mqstate { + q1 = Q1, delta = Delta, q3 = Q3, q4 = Q4, + len = Len, + pending_ack = PA, + ram_ack_index = RAI, + on_sync = #sync { funs = From }, + ram_msg_count = RamMsgCount, + ram_index_count = RamIndexCount, + next_seq_id = NextSeqId, + persistent_count = PersistentCount }) -> + [ {q1 , queue:len(Q1)}, + {delta , Delta}, + {q3 , bpqueue:len(Q3)}, + {q4 , queue:len(Q4)}, + {len , Len}, + {pending_acks , dict:size(PA)}, + {outstanding_txns , length(From)}, + {ram_msg_count , RamMsgCount}, + {ram_ack_count , gb_trees:size(RAI)}, + {ram_index_count , RamIndexCount}, + {next_seq_id , NextSeqId}, + {persistent_count , PersistentCount} ]. + +%%---------------------------------------------------------------------------- +%% Minor helpers +%%---------------------------------------------------------------------------- + +a(State = #mqstate { q1 = Q1, delta = Delta, q3 = Q3, q4 = Q4, + len = Len, + persistent_count = PersistentCount, + ram_msg_count = RamMsgCount, + ram_index_count = RamIndexCount }) -> + E1 = queue:is_empty(Q1), + ED = Delta#delta.count == 0, + E3 = bpqueue:is_empty(Q3), + E4 = queue:is_empty(Q4), + LZ = Len == 0, + + true = E1 or not E3, + true = ED or not E3, + true = LZ == (E3 and E4), + + true = Len >= 0, + true = PersistentCount >= 0, + true = RamMsgCount >= 0, + true = RamIndexCount >= 0, + + State. + +m(MsgStatus = #msg_status { msg = Msg, + is_persistent = IsPersistent, + msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk }) -> + true = (not IsPersistent) or IndexOnDisk, + true = (not IndexOnDisk) or MsgOnDisk, + true = (Msg =/= undefined) or MsgOnDisk, + + MsgStatus. + +one_if(true ) -> 1; +one_if(false) -> 0. + +cons_if(true, E, L) -> [E | L]; +cons_if(false, _E, L) -> L. + +gb_sets_maybe_insert(false, _Val, Set) -> Set; +%% when requeueing, we re-add a guid to the unconfirmed set +gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). + +msg_status(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, + MsgProps) -> + #msg_status { seq_id = SeqId, guid = Guid, msg = Msg, + is_persistent = IsPersistent, is_delivered = false, + msg_on_disk = false, index_on_disk = false, + msg_props = MsgProps }. + +with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> + {Result, MSCStateP1} = Fun(MSCStateP), + {Result, {MSCStateP1, MSCStateT}}; +with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> + {Result, MSCStateT1} = Fun(MSCStateT), + {Result, {MSCStateP, MSCStateT1}}. + +with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> + {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, + fun (MSCState1) -> + {Fun(MSCState1), MSCState1} + end), + Res. + +msg_store_client_init(MsgStore, MsgOnDiskFun) -> + rabbit_msg_store:client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). + +msg_store_write(MSCState, IsPersistent, Guid, Msg) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MSCState1) -> rabbit_msg_store:write(Guid, Msg, MSCState1) end). + +msg_store_read(MSCState, IsPersistent, Guid) -> + with_msg_store_state( + MSCState, IsPersistent, + fun (MSCState1) -> rabbit_msg_store:read(Guid, MSCState1) end). + +msg_store_remove(MSCState, IsPersistent, Guids) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MCSState1) -> rabbit_msg_store:remove(Guids, MCSState1) end). + +msg_store_release(MSCState, IsPersistent, Guids) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MCSState1) -> rabbit_msg_store:release(Guids, MCSState1) end). + +msg_store_sync(MSCState, IsPersistent, Guids, Callback) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MSCState1) -> rabbit_msg_store:sync(Guids, Callback, MSCState1) end). + +maybe_write_delivered(false, _SeqId, IndexState) -> + IndexState; +maybe_write_delivered(true, SeqId, IndexState) -> + rabbit_queue_index:deliver([SeqId], IndexState). + +lookup_tx(Txn) -> case get({txn, Txn}) of + undefined -> #tx { pending_messages = [], + pending_acks = [] }; + V -> V + end. + +store_tx(Txn, Tx) -> put({txn, Txn}, Tx). + +erase_tx(Txn) -> erase({txn, Txn}). + +persistent_guids(Pubs) -> + [Guid || {#basic_message { guid = Guid, + is_persistent = true }, _MsgProps} <- Pubs]. + +betas_from_index_entries(List, IndexState) -> + {Filtered, Delivers, Acks} = + lists:foldr( + fun ({Guid, SeqId, MsgProps, IsPersistent, IsDelivered}, + {Filtered1, Delivers1, Acks1}) -> + case not IsPersistent of + true -> {Filtered1, + cons_if(not IsDelivered, SeqId, Delivers1), + [SeqId | Acks1]}; + false -> {[m(#msg_status { msg = undefined, + guid = Guid, + seq_id = SeqId, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_on_disk = true, + index_on_disk = true, + msg_props = MsgProps + }) | Filtered1], + Delivers1, + Acks1} + end + end, {[], [], []}, List), + {bpqueue:from_list([{true, Filtered}]), + rabbit_queue_index:ack(Acks, + rabbit_queue_index:deliver(Delivers, IndexState))}. + +beta_fold(Fun, Init, Q) -> + bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). + +%%---------------------------------------------------------------------------- +%% Internal major helpers for Public API +%%---------------------------------------------------------------------------- + +init(IndexState, DeltaCount, Terms, PersistentClient, TransientClient) -> + {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), + + DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), + Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of + true -> ?BLANK_DELTA; + false -> #delta { start_seq_id = LowSeqId, + count = DeltaCount1, + end_seq_id = NextSeqId } + end, + State = #mqstate { + q1 = queue:new(), + delta = Delta, + q3 = bpqueue:new(), + q4 = queue:new(), + next_seq_id = NextSeqId, + pending_ack = dict:new(), + ram_ack_index = gb_trees:empty(), + index_state = IndexState1, + msg_store_clients = {PersistentClient, TransientClient}, + on_sync = ?BLANK_SYNC, + + len = DeltaCount1, + persistent_count = DeltaCount1, + + ram_msg_count = 0, + ram_msg_count_prev = 0, + ram_ack_count_prev = 0, + ram_index_count = 0, + out_counter = 0, + in_counter = 0, + msgs_on_disk = gb_sets:new(), + msg_indices_on_disk = gb_sets:new(), + unconfirmed = gb_sets:new(), + ack_out_counter = 0, + ack_in_counter = 0 }, + a(maybe_deltas_to_betas(State)). + +msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, MsgPropsFun) -> + Self = self(), + F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( + Self, fun (StateN) -> {[], tx_commit_post_msg_store( + true, Pubs, AckTags, + Fun, MsgPropsFun, StateN)} + end) + end, + fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( + fun () -> remove_persistent_messages( + PersistentGuids) + end, F) + end) + end. + +remove_persistent_messages(Guids) -> + PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, undefined), + ok = rabbit_msg_store:remove(Guids, PersistentClient), + rabbit_msg_store:client_delete_and_terminate(PersistentClient). + +tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, + State = #mqstate { + on_sync = OnSync = #sync { + acks_persistent = SPAcks, + acks_all = SAcks, + pubs = SPubs, + funs = SFuns }, + pending_ack = PA }) -> + PersistentAcks = + [AckTag || AckTag <- AckTags, + case dict:fetch(AckTag, PA) of + #msg_status {} -> false; + {IsPersistent, _Guid, _MsgProps} -> IsPersistent + end], + case (HasPersistentPubs orelse PersistentAcks =/= []) of + true -> State #mqstate { + on_sync = #sync { + acks_persistent = [PersistentAcks | SPAcks], + acks_all = [AckTags | SAcks], + pubs = [{MsgPropsFun, Pubs} | SPubs], + funs = [Fun | SFuns] }}; + false -> State1 = tx_commit_index( + State #mqstate { + on_sync = #sync { + acks_persistent = [], + acks_all = [AckTags], + pubs = [{MsgPropsFun, Pubs}], + funs = [Fun] } }), + State1 #mqstate { on_sync = OnSync } + end. + +tx_commit_index(State = #mqstate { on_sync = ?BLANK_SYNC }) -> + State; +tx_commit_index(State = #mqstate { on_sync = #sync { + acks_persistent = SPAcks, + acks_all = SAcks, + pubs = SPubs, + funs = SFuns } }) -> + PAcks = lists:append(SPAcks), + Acks = lists:append(SAcks), + {_Guids, NewState} = ack(Acks, State), + Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), + {Msg, MsgProps} <- lists:reverse(PubsN)], + {SeqIds, State1 = #mqstate { index_state = IndexState }} = + lists:foldl( + fun ({Msg = #basic_message { is_persistent = IsPersistent }, + MsgProps}, + {SeqIdsAcc, State2}) -> + {SeqId, State3} = + publish(Msg, MsgProps, false, IsPersistent, State2), + {cons_if(IsPersistent, SeqId, SeqIdsAcc), State3} + end, {PAcks, NewState}, Pubs), + IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), + [ Fun() || Fun <- lists:reverse(SFuns) ], + State1 #mqstate { index_state = IndexState1, on_sync = ?BLANK_SYNC }. + +purge_betas_and_deltas(LensByStore, + State = #mqstate { q3 = Q3, + index_state = IndexState, + msg_store_clients = MSCState }) -> + case bpqueue:is_empty(Q3) of + true -> {LensByStore, State}; + false -> {LensByStore1, IndexState1} = + remove_queue_entries(fun beta_fold/3, Q3, + LensByStore, IndexState, MSCState), + purge_betas_and_deltas(LensByStore1, + maybe_deltas_to_betas( + State #mqstate { + q3 = bpqueue:new(), + index_state = IndexState1 })) + end. + +remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> + {GuidsByStore, Delivers, Acks} = + Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), + ok = orddict:fold(fun (IsPersistent, Guids, ok) -> + msg_store_remove(MSCState, IsPersistent, Guids) + end, ok, GuidsByStore), + {sum_guids_by_store_to_len(LensByStore, GuidsByStore), + rabbit_queue_index:ack(Acks, + rabbit_queue_index:deliver(Delivers, IndexState))}. + +remove_queue_entries1( + #msg_status { guid = Guid, seq_id = SeqId, + is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, + {GuidsByStore, Delivers, Acks}) -> + {case MsgOnDisk of + true -> rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore); + false -> GuidsByStore + end, + cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), + cons_if(IndexOnDisk, SeqId, Acks)}. + +sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> + orddict:fold( + fun (IsPersistent, Guids, LensByStore1) -> + orddict:update_counter(IsPersistent, length(Guids), LensByStore1) + end, LensByStore, GuidsByStore). + +%%---------------------------------------------------------------------------- +%% Internal gubbins for publishing +%%---------------------------------------------------------------------------- + +publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, + MsgProps = #message_properties { needs_confirming = NeedsConfirming }, + IsDelivered, MsgOnDisk, + State = #mqstate { q1 = Q1, q3 = Q3, q4 = Q4, + next_seq_id = SeqId, + len = Len, + in_counter = InCount, + persistent_count = PCount, + ram_msg_count = RamMsgCount, + unconfirmed = Unconfirmed }) -> + MsgStatus = (msg_status(IsPersistent, SeqId, Msg, MsgProps)) + #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, + {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), + State2 = case bpqueue:is_empty(Q3) of + false -> State1 #mqstate { q1 = queue:in(m(MsgStatus1), Q1) }; + true -> State1 #mqstate { q4 = queue:in(m(MsgStatus1), Q4) } + end, + PCount1 = PCount + one_if(IsPersistent), + Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), + {SeqId, State2 #mqstate { next_seq_id = SeqId + 1, + len = Len + 1, + in_counter = InCount + 1, + persistent_count = PCount1, + ram_msg_count = RamMsgCount + 1, + unconfirmed = Unconfirmed1 }}. + +maybe_write_msg_to_disk(_Force, MsgStatus = #msg_status { + msg_on_disk = true }, _MSCState) -> + MsgStatus; +maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { + msg = Msg, guid = Guid, + is_persistent = IsPersistent }, MSCState) + when Force orelse IsPersistent -> + Msg1 = Msg #basic_message { + %% don't persist any recoverable decoded properties + content = rabbit_binary_parser:clear_decoded_content( + Msg #basic_message.content)}, + ok = msg_store_write(MSCState, IsPersistent, Guid, Msg1), + MsgStatus #msg_status { msg_on_disk = true }; +maybe_write_msg_to_disk(_Force, MsgStatus, _MSCState) -> + MsgStatus. + +maybe_write_index_to_disk(_Force, MsgStatus = #msg_status { + index_on_disk = true }, IndexState) -> + true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION + {MsgStatus, IndexState}; +maybe_write_index_to_disk(Force, MsgStatus = #msg_status { + guid = Guid, + seq_id = SeqId, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_props = MsgProps}, IndexState) + when Force orelse IsPersistent -> + true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION + IndexState1 = rabbit_queue_index:publish( + Guid, SeqId, MsgProps, IsPersistent, IndexState), + {MsgStatus #msg_status { index_on_disk = true }, + maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; +maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> + {MsgStatus, IndexState}. + +maybe_write_to_disk(ForceMsg, ForceIndex, MsgStatus, + State = #mqstate { index_state = IndexState, + msg_store_clients = MSCState }) -> + MsgStatus1 = maybe_write_msg_to_disk(ForceMsg, MsgStatus, MSCState), + {MsgStatus2, IndexState1} = + maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), + {MsgStatus2, State #mqstate { index_state = IndexState1 }}. + +%%---------------------------------------------------------------------------- +%% Internal gubbins for acks +%%---------------------------------------------------------------------------- + +record_pending_ack(#msg_status { seq_id = SeqId, + guid = Guid, + is_persistent = IsPersistent, + msg_on_disk = MsgOnDisk, + msg_props = MsgProps } = MsgStatus, + State = #mqstate { pending_ack = PA, + ram_ack_index = RAI, + ack_in_counter = AckInCount}) -> + {AckEntry, RAI1} = + case MsgOnDisk of + true -> {{IsPersistent, Guid, MsgProps}, RAI}; + false -> {MsgStatus, gb_trees:insert(SeqId, Guid, RAI)} + end, + PA1 = dict:store(SeqId, AckEntry, PA), + State #mqstate { pending_ack = PA1, + ram_ack_index = RAI1, + ack_in_counter = AckInCount + 1}. + +remove_pending_ack(KeepPersistent, + State = #mqstate { pending_ack = PA, + index_state = IndexState, + msg_store_clients = MSCState }) -> + {PersistentSeqIds, GuidsByStore, _AllGuids} = + dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), + State1 = State #mqstate { pending_ack = dict:new(), + ram_ack_index = gb_trees:empty() }, + case KeepPersistent of + true -> case orddict:find(false, GuidsByStore) of + error -> State1; + {ok, Guids} -> ok = msg_store_remove(MSCState, false, + Guids), + State1 + end; + false -> IndexState1 = + rabbit_queue_index:ack(PersistentSeqIds, IndexState), + [ok = msg_store_remove(MSCState, IsPersistent, Guids) + || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + State1 #mqstate { index_state = IndexState1 } + end. + +ack(_MsgStoreFun, _Fun, [], State) -> + {[], State}; +ack(MsgStoreFun, Fun, AckTags, State) -> + {{PersistentSeqIds, GuidsByStore, AllGuids}, + State1 = #mqstate { index_state = IndexState, + msg_store_clients = MSCState, + persistent_count = PCount, + ack_out_counter = AckOutCount }} = + lists:foldl( + fun (SeqId, {Acc, State2 = #mqstate { pending_ack = PA, + ram_ack_index = RAI }}) -> + AckEntry = dict:fetch(SeqId, PA), + {accumulate_ack(SeqId, AckEntry, Acc), + Fun(AckEntry, State2 #mqstate { + pending_ack = dict:erase(SeqId, PA), + ram_ack_index = + gb_trees:delete_any(SeqId, RAI)})} + end, {accumulate_ack_init(), State}, AckTags), + IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), + [ok = MsgStoreFun(MSCState, IsPersistent, Guids) + || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( + orddict:new(), GuidsByStore)), + {lists:reverse(AllGuids), + State1 #mqstate { index_state = IndexState1, + persistent_count = PCount1, + ack_out_counter = AckOutCount + length(AckTags) }}. + +accumulate_ack_init() -> {[], orddict:new(), []}. + +accumulate_ack(_SeqId, #msg_status { is_persistent = false, %% ASSERTIONS + msg_on_disk = false, + index_on_disk = false, + guid = Guid }, + {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> + {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}; +accumulate_ack(SeqId, {IsPersistent, Guid, _MsgProps}, + {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> + {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), + rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore), + [Guid | AllGuids]}. + +find_persistent_count(LensByStore) -> + case orddict:find(true, LensByStore) of + error -> 0; + {ok, Len} -> Len + end. + +%%---------------------------------------------------------------------------- +%% Internal plumbing for confirms (aka publisher acks) +%%---------------------------------------------------------------------------- + +remove_confirms(GuidSet, State = #mqstate { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + State #mqstate { msgs_on_disk = gb_sets:difference(MOD, GuidSet), + msg_indices_on_disk = gb_sets:difference(MIOD, GuidSet), + unconfirmed = gb_sets:difference(UC, GuidSet) }. + +msgs_confirmed(GuidSet, State) -> + {gb_sets:to_list(GuidSet), remove_confirms(GuidSet, State)}. + +msgs_written_to_disk(QPid, GuidSet) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + QPid, fun (State = #mqstate { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + msgs_confirmed(gb_sets:intersection(GuidSet, MIOD), + State #mqstate { + msgs_on_disk = + gb_sets:intersection( + gb_sets:union(MOD, GuidSet), UC) }) + end). + +msg_indices_written_to_disk(QPid, GuidSet) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + QPid, fun (State = #mqstate { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + msgs_confirmed(gb_sets:intersection(GuidSet, MOD), + State #mqstate { + msg_indices_on_disk = + gb_sets:intersection( + gb_sets:union(MIOD, GuidSet), UC) }) + end). + +%%---------------------------------------------------------------------------- +%% Phase changes +%%---------------------------------------------------------------------------- + +fetch_from_q3(State = #mqstate { + q1 = Q1, + delta = #delta { count = DeltaCount }, + q3 = Q3, + q4 = Q4, + ram_index_count = RamIndexCount}) -> + case bpqueue:out(Q3) of + {empty, _Q3} -> + {empty, State}; + {{value, IndexOnDisk, MsgStatus}, Q3a} -> + RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), + true = RamIndexCount1 >= 0, %% ASSERTION + State1 = State #mqstate { q3 = Q3a, + ram_index_count = RamIndexCount1 }, + State2 = + case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of + {true, true} -> + %% q3 is now empty, it wasn't before; delta is + %% still empty. We know q4 is empty otherwise + %% we wouldn't be loading from q3. As such, we + %% can just set q4 to Q1. + true = queue:is_empty(Q4), %% ASSERTION + State1 #mqstate { q1 = queue:new(), + q4 = Q1 }; + {true, false} -> + maybe_deltas_to_betas(State1); + {false, _} -> + %% q3 still isn't empty, we've not touched + %% delta, so the invariants between q1, delta + %% and q3 are maintained + State1 + end, + {loaded, {MsgStatus, State2}} + end. + +maybe_deltas_to_betas(State = #mqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> + State; +maybe_deltas_to_betas(State = #mqstate { + delta = Delta, + q3 = Q3, + index_state = IndexState }) -> + #delta { start_seq_id = DeltaSeqId, + count = DeltaCount, + end_seq_id = DeltaSeqIdEnd } = Delta, + DeltaSeqId1 = + lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), + DeltaSeqIdEnd]), + {List, IndexState1} = + rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), + {Q3a, IndexState2} = + betas_from_index_entries(List, IndexState1), + State1 = State #mqstate { index_state = IndexState2 }, + case bpqueue:len(Q3a) of + 0 -> + %% we ignored every message in the segment due to it being + %% transient and below the threshold + maybe_deltas_to_betas( + State1 #mqstate { + delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); + Q3aLen -> + Q3b = bpqueue:join(Q3, Q3a), + case DeltaCount - Q3aLen of + 0 -> + State1 #mqstate { delta = ?BLANK_DELTA, + q3 = Q3b }; + N when N > 0 -> + Delta1 = #delta { start_seq_id = DeltaSeqId1, + count = N, + end_seq_id = DeltaSeqIdEnd }, + State1 #mqstate { delta = Delta1, + q3 = Q3b } + end + end. + diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 565c61e7..e3e76970 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -296,12 +296,11 @@ -record(sync, { acks_persistent, acks_all, pubs, funs }). %% When we discover, on publish, that we should write some indices to -%% disk for some betas, the RAM_INDEX_BATCH_SIZE sets the number of -%% betas that we must be due to write indices for before we do any -%% work at all. This is both a minimum and a maximum - we don't write -%% fewer than RAM_INDEX_BATCH_SIZE indices out in one go, and we don't -%% write more - we can always come back on the next publish to do -%% more. +%% disk for some betas, the IO_BATCH_SIZE sets the number of betas +%% that we must be due to write indices for before we do any work at +%% all. This is both a minimum and a maximum - we don't write fewer +%% than IO_BATCH_SIZE indices out in one go, and we don't write more - +%% we can always come back on the next publish to do more. -define(IO_BATCH_SIZE, 64). -define(PERSISTENT_MSG_STORE, msg_store_persistent). -define(TRANSIENT_MSG_STORE, msg_store_transient). @@ -906,7 +905,7 @@ cons_if(true, E, L) -> [E | L]; cons_if(false, _E, L) -> L. gb_sets_maybe_insert(false, _Val, Set) -> Set; -%% when requeueing, we re-add a guid to the unconfimred set +%% when requeueing, we re-add a guid to the unconfirmed set gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). msg_status(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, -- cgit v1.2.1 From 556b144324a198ae37559db0333b0370024d26fb Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 17:27:36 -0800 Subject: Treat all messages as temporarily transient (breaks some tests). --- src/rabbit_mnesia_queue.erl | 248 +++++++++++++++----------------------------- 1 file changed, 81 insertions(+), 167 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 49fbcf8f..7da05206 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -94,11 +94,11 @@ %% demanded as the queue is read from. Thus only publishes to the %% queue will take up available spare capacity. %% -%% If a queue is full of transient messages, then the transition from -%% betas to deltas will be potentially very expensive as millions of -%% entries must be written to disk by the queue_index module. This can -%% badly stall the queue. In order to avoid this, the proportion of -%% gammas / (betas+gammas) must not be lower than (betas+gammas) / +%% If a queue is full of messages, then the transition from betas to +%% deltas will be potentially very expensive as millions of entries +%% must be written to disk by the queue_index module. This can badly +%% stall the queue. In order to avoid this, the proportion of gammas / +%% (betas+gammas) must not be lower than (betas+gammas) / %% (alphas+betas+gammas). As the queue grows or available memory %% shrinks, the latter ratio increases, requiring the conversion of %% more gammas to betas in order to maintain the invariant. At the @@ -130,16 +130,23 @@ %% %% Pending acks are recorded in memory either as the tuple {SeqId, %% Guid, MsgProps} (tuple-form) or as the message itself (message- -%% form). Acks for persistent messages are always stored in the tuple- -%% form. Acks for transient messages are also stored in tuple-form if -%% the message has been sent to disk as part of the memory reduction -%% process. For transient messages that haven't already been written -%% to disk, acks are stored in message-form. +%% form). Acks for messages are stored in tuple-form if the message +%% has been sent to disk as part of the memory reduction process. For +%% messages that haven't already been written to disk, acks are stored +%% in message-form. %% %% During memory reduction, acks stored in message-form are converted %% to tuple-form, and the corresponding messages are pushed out to %% disk. %% +%% All queues are durable in this version, no matter how they are +%% requested. (We may need to remember the requested type in the +%% future, to catch accidental redeclares.) All messages are transient +%% (non-persistent) in this interim version, in order to rip aout all +%% of the old backing code before insetring the new backing +%% code. (This breaks some tests, since all messages are temporarily +%% dropped on restart.) +%% %% Notes on Clean Shutdown %% (This documents behaviour in variable_queue, queue_index and %% msg_store.) @@ -153,13 +160,9 @@ %% queue_index adds to these terms the details of its segments and %% stores the terms in the queue directory. %% -%% All queues are durable in this version, however they are -%% requested. (We may need to remember the requested type to catch -%% accidental redeclares.) -%% %% Two message stores are used. One is created for persistent messages %% that must survive restarts, and the other is used for all other -%% messages that just happen to need to be written to disk. On sta t +%% messages that just happen to need to be written to disk. On start %% up we can therefore nuke the transient message store, and be sure %% that the messages in the persistent store are all that we need. %% @@ -212,7 +215,6 @@ { seq_id, guid, msg, - is_persistent, is_delivered, msg_on_disk, index_on_disk, @@ -285,6 +287,8 @@ ack_out_counter :: non_neg_integer(), ack_in_counter :: non_neg_integer() }). +%% Need declaration for msg_status and tx. + -include("rabbit_backing_queue_spec.hrl"). -endif. @@ -500,26 +504,22 @@ publish(Msg, MsgProps, State) -> publish_delivered(false, _Msg, _MsgProps, State = #mqstate { len = 0 }) -> {blank_ack, a(State)}; -publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, - guid = Guid }, +publish_delivered(true, Msg = #basic_message { guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, State = #mqstate { len = 0, next_seq_id = SeqId, out_counter = OutCount, in_counter = InCount, - persistent_count = PCount, unconfirmed = Unconfirmed }) -> - MsgStatus = (msg_status(IsPersistent, SeqId, Msg, MsgProps)) + MsgStatus = (msg_status(false, SeqId, Msg, MsgProps)) #msg_status { is_delivered = true }, {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), State2 = record_pending_ack(m(MsgStatus1), State1), - PCount1 = PCount + one_if(IsPersistent), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), {SeqId, a(State2 #mqstate { next_seq_id = SeqId + 1, out_counter = OutCount + 1, in_counter = InCount + 1, - persistent_count = PCount1, unconfirmed = Unconfirmed1 })}. %%---------------------------------------------------------------------------- @@ -578,12 +578,11 @@ internal_queue_out(Fun, State = #mqstate { q4 = Q4 }) -> end. read_msg(MsgStatus = #msg_status { msg = undefined, - guid = Guid, - is_persistent = IsPersistent }, + guid = Guid }, State = #mqstate { ram_msg_count = RamMsgCount, msg_store_clients = MSCState}) -> {{ok, Msg = #basic_message {}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, Guid), + msg_store_read(MSCState, false, Guid), {MsgStatus #msg_status { msg = Msg }, State #mqstate { ram_msg_count = RamMsgCount + 1, msg_store_clients = MSCState1 }}; @@ -594,7 +593,6 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { seq_id = SeqId, guid = Guid, msg = Msg, - is_persistent = IsPersistent, is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, index_on_disk = IndexOnDisk }, @@ -602,8 +600,7 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { out_counter = OutCount, index_state = IndexState, msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> + len = Len }) -> %% 1. Mark it delivered if necessary IndexState1 = maybe_write_delivered( IndexOnDisk andalso not IsDelivered, @@ -611,14 +608,14 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { %% 2. Remove from msg_store and queue index, if necessary Rem = fun () -> - ok = msg_store_remove(MSCState, IsPersistent, [Guid]) + ok = msg_store_remove(MSCState, false, [Guid]) end, Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, IndexState2 = - case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of - {false, true, false, _} -> Rem(), IndexState1; - {false, true, true, _} -> Rem(), Ack(); - { true, true, true, false} -> Ack(); + case {AckRequired, MsgOnDisk, IndexOnDisk} of + {false, true, false} -> Rem(), IndexState1; + {false, true, true} -> Rem(), Ack(); + {true, true, true} -> Ack(); _ -> IndexState1 end, @@ -631,7 +628,6 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { false -> {blank_ack, State} end, - PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), Len1 = Len - 1, RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), @@ -639,8 +635,7 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { a(State1 #mqstate { ram_msg_count = RamMsgCount1, out_counter = OutCount + 1, index_state = IndexState2, - len = Len1, - persistent_count = PCount1 })}. + len = Len1 })}. %%---------------------------------------------------------------------------- %% ack/2 acknowledges messages. Acktags supplied are for messages @@ -667,16 +662,9 @@ ack(AckTags, State) -> %% rabbit_types:message_properties(), state()) %% -> state()). -tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, - State = #mqstate { msg_store_clients = MSCState }) -> +tx_publish(Txn, Msg, MsgProps, State) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), - case IsPersistent of - true -> MsgStatus = msg_status(true, undefined, Msg, MsgProps), - #msg_status { msg_on_disk = true } = - maybe_write_msg_to_disk(false, MsgStatus, MSCState); - false -> ok - end, a(State). %%---------------------------------------------------------------------------- @@ -696,9 +684,9 @@ tx_ack(Txn, AckTags, State) -> %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, State = #mqstate { msg_store_clients = MSCState }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), + #tx { pending_acks = AckTags } = lookup_tx(Txn), erase_tx(Txn), - ok = msg_store_remove(MSCState, true, persistent_guids(Pubs)), + ok = msg_store_remove(MSCState, true, []), {lists:append(AckTags), a(State)}. %%---------------------------------------------------------------------------- @@ -710,23 +698,12 @@ tx_rollback(Txn, State = #mqstate { msg_store_clients = MSCState }) -> %% (rabbit_types:txn(), fun (() -> any()), %% message_properties_transformer(), state()) -> {[ack()], state()}). -tx_commit(Txn, Fun, MsgPropsFun, - State = #mqstate { msg_store_clients = MSCState }) -> +tx_commit(Txn, Fun, MsgPropsFun, State) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), - PersistentGuids = persistent_guids(Pubs), - HasPersistentPubs = PersistentGuids =/= [], {AckTags1, - a(case HasPersistentPubs of - true -> ok = msg_store_sync( - MSCState, true, PersistentGuids, - msg_store_callback(PersistentGuids, Pubs, AckTags1, - Fun, MsgPropsFun)), - State; - false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, - Fun, MsgPropsFun, State) - end)}. + a(tx_commit_post_msg_store(false, Pubs, AckTags1, Fun, MsgPropsFun, State))}. %%---------------------------------------------------------------------------- %% requeue/3 reinserts messages into the queue which have already been @@ -742,10 +719,10 @@ requeue(AckTags, MsgPropsFun, State) -> {_SeqId, State2} = publish(Msg, MsgPropsFun(MsgProps), true, false, State1), State2; - ({IsPersistent, Guid, MsgProps}, State1) -> + ({_IsPersistent, Guid, MsgProps}, State1) -> #mqstate { msg_store_clients = MSCState } = State1, {{ok, Msg = #basic_message{}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, Guid), + msg_store_read(MSCState, false, Guid), State2 = State1 #mqstate { msg_store_clients = MSCState1 }, {_SeqId, State3} = publish(Msg, MsgPropsFun(MsgProps), true, true, State2), @@ -882,10 +859,8 @@ a(State = #mqstate { q1 = Q1, delta = Delta, q3 = Q3, q4 = Q4, State. m(MsgStatus = #msg_status { msg = Msg, - is_persistent = IsPersistent, msg_on_disk = MsgOnDisk, index_on_disk = IndexOnDisk }) -> - true = (not IsPersistent) or IndexOnDisk, true = (not IndexOnDisk) or MsgOnDisk, true = (Msg =/= undefined) or MsgOnDisk, @@ -901,10 +876,9 @@ gb_sets_maybe_insert(false, _Val, Set) -> Set; %% when requeueing, we re-add a guid to the unconfirmed set gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). -msg_status(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, +msg_status(_IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, MsgProps) -> - #msg_status { seq_id = SeqId, guid = Guid, msg = Msg, - is_persistent = IsPersistent, is_delivered = false, + #msg_status { seq_id = SeqId, guid = Guid, msg = Msg, is_delivered = false, msg_on_disk = false, index_on_disk = false, msg_props = MsgProps }. @@ -915,8 +889,8 @@ with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> {Result, MSCStateT1} = Fun(MSCStateT), {Result, {MSCStateP, MSCStateT1}}. -with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> - {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, +with_immutable_msg_store_state(MSCState, _IsPersistent, Fun) -> + {Res, MSCState} = with_msg_store_state(MSCState, false, fun (MSCState1) -> {Fun(MSCState1), MSCState1} end), @@ -925,31 +899,26 @@ with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> msg_store_client_init(MsgStore, MsgOnDiskFun) -> rabbit_msg_store:client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). -msg_store_write(MSCState, IsPersistent, Guid, Msg) -> +msg_store_write(MSCState, _IsPersistent, Guid, Msg) -> with_immutable_msg_store_state( - MSCState, IsPersistent, + MSCState, false, fun (MSCState1) -> rabbit_msg_store:write(Guid, Msg, MSCState1) end). -msg_store_read(MSCState, IsPersistent, Guid) -> +msg_store_read(MSCState, _IsPersistent, Guid) -> with_msg_store_state( - MSCState, IsPersistent, + MSCState, false, fun (MSCState1) -> rabbit_msg_store:read(Guid, MSCState1) end). -msg_store_remove(MSCState, IsPersistent, Guids) -> +msg_store_remove(MSCState, _IsPersistent, Guids) -> with_immutable_msg_store_state( - MSCState, IsPersistent, + MSCState, false, fun (MCSState1) -> rabbit_msg_store:remove(Guids, MCSState1) end). -msg_store_release(MSCState, IsPersistent, Guids) -> +msg_store_release(MSCState, _IsPersistent, Guids) -> with_immutable_msg_store_state( - MSCState, IsPersistent, + MSCState, false, fun (MCSState1) -> rabbit_msg_store:release(Guids, MCSState1) end). -msg_store_sync(MSCState, IsPersistent, Guids, Callback) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:sync(Guids, Callback, MSCState1) end). - maybe_write_delivered(false, _SeqId, IndexState) -> IndexState; maybe_write_delivered(true, SeqId, IndexState) -> @@ -965,31 +934,13 @@ store_tx(Txn, Tx) -> put({txn, Txn}, Tx). erase_tx(Txn) -> erase({txn, Txn}). -persistent_guids(Pubs) -> - [Guid || {#basic_message { guid = Guid, - is_persistent = true }, _MsgProps} <- Pubs]. - betas_from_index_entries(List, IndexState) -> {Filtered, Delivers, Acks} = lists:foldr( - fun ({Guid, SeqId, MsgProps, IsPersistent, IsDelivered}, + fun ({_Guid, SeqId, _MsgProps, _IsPersistent, IsDelivered}, {Filtered1, Delivers1, Acks1}) -> - case not IsPersistent of - true -> {Filtered1, - cons_if(not IsDelivered, SeqId, Delivers1), - [SeqId | Acks1]}; - false -> {[m(#msg_status { msg = undefined, - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true, - msg_props = MsgProps - }) | Filtered1], - Delivers1, - Acks1} - end + {Filtered1, cons_if(not IsDelivered, SeqId, Delivers1), + [SeqId | Acks1]} end, {[], [], []}, List), {bpqueue:from_list([{true, Filtered}]), rabbit_queue_index:ack(Acks, @@ -1040,44 +991,17 @@ init(IndexState, DeltaCount, Terms, PersistentClient, TransientClient) -> ack_in_counter = 0 }, a(maybe_deltas_to_betas(State)). -msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, MsgPropsFun) -> - Self = self(), - F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( - Self, fun (StateN) -> {[], tx_commit_post_msg_store( - true, Pubs, AckTags, - Fun, MsgPropsFun, StateN)} - end) - end, - fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( - fun () -> remove_persistent_messages( - PersistentGuids) - end, F) - end) - end. - -remove_persistent_messages(Guids) -> - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, undefined), - ok = rabbit_msg_store:remove(Guids, PersistentClient), - rabbit_msg_store:client_delete_and_terminate(PersistentClient). - tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, State = #mqstate { on_sync = OnSync = #sync { acks_persistent = SPAcks, acks_all = SAcks, pubs = SPubs, - funs = SFuns }, - pending_ack = PA }) -> - PersistentAcks = - [AckTag || AckTag <- AckTags, - case dict:fetch(AckTag, PA) of - #msg_status {} -> false; - {IsPersistent, _Guid, _MsgProps} -> IsPersistent - end], - case (HasPersistentPubs orelse PersistentAcks =/= []) of + funs = SFuns } }) -> + case HasPersistentPubs of true -> State #mqstate { on_sync = #sync { - acks_persistent = [PersistentAcks | SPAcks], + acks_persistent = [[] | SPAcks], acks_all = [AckTags | SAcks], pubs = [{MsgPropsFun, Pubs} | SPubs], funs = [Fun | SFuns] }}; @@ -1105,12 +1029,10 @@ tx_commit_index(State = #mqstate { on_sync = #sync { {Msg, MsgProps} <- lists:reverse(PubsN)], {SeqIds, State1 = #mqstate { index_state = IndexState }} = lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, - MsgProps}, - {SeqIdsAcc, State2}) -> - {SeqId, State3} = - publish(Msg, MsgProps, false, IsPersistent, State2), - {cons_if(IsPersistent, SeqId, SeqIdsAcc), State3} + fun ({Msg, MsgProps}, {SeqIdsAcc, State2}) -> + {_SeqId, State3} = + publish(Msg, MsgProps, false, false, State2), + {SeqIdsAcc, State3} end, {PAcks, NewState}, Pubs), IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), [ Fun() || Fun <- lists:reverse(SFuns) ], @@ -1135,8 +1057,8 @@ purge_betas_and_deltas(LensByStore, remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> {GuidsByStore, Delivers, Acks} = Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), - ok = orddict:fold(fun (IsPersistent, Guids, ok) -> - msg_store_remove(MSCState, IsPersistent, Guids) + ok = orddict:fold(fun (_IsPersistent, Guids, ok) -> + msg_store_remove(MSCState, false, Guids) end, ok, GuidsByStore), {sum_guids_by_store_to_len(LensByStore, GuidsByStore), rabbit_queue_index:ack(Acks, @@ -1145,10 +1067,10 @@ remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> remove_queue_entries1( #msg_status { guid = Guid, seq_id = SeqId, is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, + index_on_disk = IndexOnDisk }, {GuidsByStore, Delivers, Acks}) -> {case MsgOnDisk of - true -> rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore); + true -> rabbit_misc:orddict_cons(false, Guid, GuidsByStore); false -> GuidsByStore end, cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), @@ -1156,37 +1078,34 @@ remove_queue_entries1( sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> orddict:fold( - fun (IsPersistent, Guids, LensByStore1) -> - orddict:update_counter(IsPersistent, length(Guids), LensByStore1) + fun (_IsPersistent, Guids, LensByStore1) -> + orddict:update_counter(false, length(Guids), LensByStore1) end, LensByStore, GuidsByStore). %%---------------------------------------------------------------------------- %% Internal gubbins for publishing %%---------------------------------------------------------------------------- -publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, +publish(Msg = #basic_message { guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, IsDelivered, MsgOnDisk, State = #mqstate { q1 = Q1, q3 = Q3, q4 = Q4, next_seq_id = SeqId, len = Len, in_counter = InCount, - persistent_count = PCount, ram_msg_count = RamMsgCount, unconfirmed = Unconfirmed }) -> - MsgStatus = (msg_status(IsPersistent, SeqId, Msg, MsgProps)) + MsgStatus = (msg_status(false, SeqId, Msg, MsgProps)) #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), State2 = case bpqueue:is_empty(Q3) of false -> State1 #mqstate { q1 = queue:in(m(MsgStatus1), Q1) }; true -> State1 #mqstate { q4 = queue:in(m(MsgStatus1), Q4) } end, - PCount1 = PCount + one_if(IsPersistent), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), {SeqId, State2 #mqstate { next_seq_id = SeqId + 1, len = Len + 1, in_counter = InCount + 1, - persistent_count = PCount1, ram_msg_count = RamMsgCount + 1, unconfirmed = Unconfirmed1 }}. @@ -1194,14 +1113,13 @@ maybe_write_msg_to_disk(_Force, MsgStatus = #msg_status { msg_on_disk = true }, _MSCState) -> MsgStatus; maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { - msg = Msg, guid = Guid, - is_persistent = IsPersistent }, MSCState) - when Force orelse IsPersistent -> + msg = Msg, guid = Guid }, MSCState) + when Force -> Msg1 = Msg #basic_message { %% don't persist any recoverable decoded properties content = rabbit_binary_parser:clear_decoded_content( Msg #basic_message.content)}, - ok = msg_store_write(MSCState, IsPersistent, Guid, Msg1), + ok = msg_store_write(MSCState, false, Guid, Msg1), MsgStatus #msg_status { msg_on_disk = true }; maybe_write_msg_to_disk(_Force, MsgStatus, _MSCState) -> MsgStatus. @@ -1213,13 +1131,12 @@ maybe_write_index_to_disk(_Force, MsgStatus = #msg_status { maybe_write_index_to_disk(Force, MsgStatus = #msg_status { guid = Guid, seq_id = SeqId, - is_persistent = IsPersistent, is_delivered = IsDelivered, msg_props = MsgProps}, IndexState) - when Force orelse IsPersistent -> + when Force -> true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION IndexState1 = rabbit_queue_index:publish( - Guid, SeqId, MsgProps, IsPersistent, IndexState), + Guid, SeqId, MsgProps, false, IndexState), {MsgStatus #msg_status { index_on_disk = true }, maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> @@ -1239,7 +1156,6 @@ maybe_write_to_disk(ForceMsg, ForceIndex, MsgStatus, record_pending_ack(#msg_status { seq_id = SeqId, guid = Guid, - is_persistent = IsPersistent, msg_on_disk = MsgOnDisk, msg_props = MsgProps } = MsgStatus, State = #mqstate { pending_ack = PA, @@ -1247,7 +1163,7 @@ record_pending_ack(#msg_status { seq_id = SeqId, ack_in_counter = AckInCount}) -> {AckEntry, RAI1} = case MsgOnDisk of - true -> {{IsPersistent, Guid, MsgProps}, RAI}; + true -> {{false, Guid, MsgProps}, RAI}; false -> {MsgStatus, gb_trees:insert(SeqId, Guid, RAI)} end, PA1 = dict:store(SeqId, AckEntry, PA), @@ -1272,8 +1188,8 @@ remove_pending_ack(KeepPersistent, end; false -> IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = msg_store_remove(MSCState, IsPersistent, Guids) - || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + [ok = msg_store_remove(MSCState, false, Guids) + || {_IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], State1 #mqstate { index_state = IndexState1 } end. @@ -1296,8 +1212,8 @@ ack(MsgStoreFun, Fun, AckTags, State) -> gb_trees:delete_any(SeqId, RAI)})} end, {accumulate_ack_init(), State}, AckTags), IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = MsgStoreFun(MSCState, IsPersistent, Guids) - || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + [ok = MsgStoreFun(MSCState, false, Guids) + || {_IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( orddict:new(), GuidsByStore)), {lists:reverse(AllGuids), @@ -1307,16 +1223,14 @@ ack(MsgStoreFun, Fun, AckTags, State) -> accumulate_ack_init() -> {[], orddict:new(), []}. -accumulate_ack(_SeqId, #msg_status { is_persistent = false, %% ASSERTIONS - msg_on_disk = false, +accumulate_ack(_SeqId, #msg_status { msg_on_disk = false, index_on_disk = false, guid = Guid }, {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}; -accumulate_ack(SeqId, {IsPersistent, Guid, _MsgProps}, +accumulate_ack(_SeqId, {_IsPersistent, Guid, _MsgProps}, {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> - {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), - rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore), + {PersistentSeqIdsAcc, rabbit_misc:orddict_cons(false, Guid, GuidsByStore), [Guid | AllGuids]}. find_persistent_count(LensByStore) -> -- cgit v1.2.1 From 0ef202cb48c6dfe7f53dd43cdadb3219fcb2f0d1 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 17:48:20 -0800 Subject: Small cleanup --- src/rabbit_mnesia_queue.erl | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 7da05206..2533beaa 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -512,7 +512,7 @@ publish_delivered(true, Msg = #basic_message { guid = Guid }, out_counter = OutCount, in_counter = InCount, unconfirmed = Unconfirmed }) -> - MsgStatus = (msg_status(false, SeqId, Msg, MsgProps)) + MsgStatus = (msg_status(SeqId, Msg, MsgProps)) #msg_status { is_delivered = true }, {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), State2 = record_pending_ack(m(MsgStatus1), State1), @@ -876,8 +876,7 @@ gb_sets_maybe_insert(false, _Val, Set) -> Set; %% when requeueing, we re-add a guid to the unconfirmed set gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). -msg_status(_IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, - MsgProps) -> +msg_status(SeqId, Msg = #basic_message { guid = Guid }, MsgProps) -> #msg_status { seq_id = SeqId, guid = Guid, msg = Msg, is_delivered = false, msg_on_disk = false, index_on_disk = false, msg_props = MsgProps }. @@ -889,7 +888,7 @@ with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> {Result, MSCStateT1} = Fun(MSCStateT), {Result, {MSCStateP, MSCStateT1}}. -with_immutable_msg_store_state(MSCState, _IsPersistent, Fun) -> +with_immutable_msg_store_state(MSCState, Fun) -> {Res, MSCState} = with_msg_store_state(MSCState, false, fun (MSCState1) -> {Fun(MSCState1), MSCState1} @@ -901,7 +900,7 @@ msg_store_client_init(MsgStore, MsgOnDiskFun) -> msg_store_write(MSCState, _IsPersistent, Guid, Msg) -> with_immutable_msg_store_state( - MSCState, false, + MSCState, fun (MSCState1) -> rabbit_msg_store:write(Guid, Msg, MSCState1) end). msg_store_read(MSCState, _IsPersistent, Guid) -> @@ -911,12 +910,12 @@ msg_store_read(MSCState, _IsPersistent, Guid) -> msg_store_remove(MSCState, _IsPersistent, Guids) -> with_immutable_msg_store_state( - MSCState, false, + MSCState, fun (MCSState1) -> rabbit_msg_store:remove(Guids, MCSState1) end). msg_store_release(MSCState, _IsPersistent, Guids) -> with_immutable_msg_store_state( - MSCState, false, + MSCState, fun (MCSState1) -> rabbit_msg_store:release(Guids, MCSState1) end). maybe_write_delivered(false, _SeqId, IndexState) -> @@ -1095,7 +1094,7 @@ publish(Msg = #basic_message { guid = Guid }, in_counter = InCount, ram_msg_count = RamMsgCount, unconfirmed = Unconfirmed }) -> - MsgStatus = (msg_status(false, SeqId, Msg, MsgProps)) + MsgStatus = (msg_status(SeqId, Msg, MsgProps)) #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), State2 = case bpqueue:is_empty(Q3) of @@ -1193,8 +1192,7 @@ remove_pending_ack(KeepPersistent, State1 #mqstate { index_state = IndexState1 } end. -ack(_MsgStoreFun, _Fun, [], State) -> - {[], State}; +ack(_MsgStoreFun, _Fun, [], State) -> {[], State}; ack(MsgStoreFun, Fun, AckTags, State) -> {{PersistentSeqIds, GuidsByStore, AllGuids}, State1 = #mqstate { index_state = IndexState, -- cgit v1.2.1 From ab7775c917977a72b453956a9799ea3f96a0060a Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 18:44:31 -0800 Subject: Eliminate deltas; merge other queues. --- src/rabbit_mnesia_queue.erl | 379 ++++++-------------------------------------- 1 file changed, 48 insertions(+), 331 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 2533beaa..d1097593 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -49,83 +49,10 @@ %%---------------------------------------------------------------------------- %% Definitions: -%% alpha: this is a message where both the message itself, and its -%% position within the queue are held in RAM -%% -%% beta: this is a message where the message itself is only held on -%% disk, but its position within the queue is held in RAM. -%% -%% gamma: this is a message where the message itself is only held on -%% disk, but its position is both in RAM and on disk. -%% -%% delta: this is a collection of messages, represented by a single -%% term, where the messages and their position are only held on -%% disk. -%% -%% Note that for persistent messages, the message and its position -%% within the queue are always held on disk, *in addition* to being in -%% one of the above classifications. -%% -%% Also note that within this code, the term gamma never -%% appears. Instead, gammas are defined by betas who have had their -%% queue position recorded on disk. -%% -%% In general, messages move q1 -> delta -> q3 -> q4, though many of -%% these steps are frequently skipped. q1 and q4 only hold alphas, q3 -%% holds both betas and gammas (as queues of queues, using the bpqueue -%% module where the block prefix determines whether they're betas or -%% gammas). When a message arrives, its classification is -%% determined. It is then added to the rightmost appropriate queue. -%% -%% If a new message is determined to be a beta or gamma, q1 is -%% empty. If a new message is determined to be a delta, q1 is empty -%% (and actually q4 too). -%% -%% When removing messages from a queue, if q4 is empty then q3 is read -%% directly. If q3 becomes empty then the next segment's worth of -%% messages from delta are read into q3, reducing the size of -%% delta. If the queue is non empty, either q4 or q3 contain -%% entries. It is never permitted for delta to hold all the messages -%% in the queue. -%% -%% Whilst messages are pushed to disk and forgotten from RAM as soon -%% as requested by a new setting of the queue RAM duration, the -%% inverse is not true: we only load messages back into RAM as -%% demanded as the queue is read from. Thus only publishes to the -%% queue will take up available spare capacity. -%% -%% If a queue is full of messages, then the transition from betas to -%% deltas will be potentially very expensive as millions of entries -%% must be written to disk by the queue_index module. This can badly -%% stall the queue. In order to avoid this, the proportion of gammas / -%% (betas+gammas) must not be lower than (betas+gammas) / -%% (alphas+betas+gammas). As the queue grows or available memory -%% shrinks, the latter ratio increases, requiring the conversion of -%% more gammas to betas in order to maintain the invariant. At the -%% point at which betas and gammas must be converted to deltas, there -%% should be very few betas remaining, thus the transition is fast (no -%% work needs to be done for the gamma -> delta transition). -%% -%% The conversion of betas to gammas is done in batches of exactly -%% ?IO_BATCH_SIZE. This value should not be too small, otherwise the -%% frequent operations on q3 will not be effectively amortised -%% (switching the direction of queue access defeats amortisation), nor -%% should it be too big, otherwise converting a batch stalls the queue -%% for too long. Therefore, it must be just right. ram_index_count is -%% used here and is the number of betas. -%% -%% The conversion from alphas to betas is also chunked, but only to -%% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at -%% any one time. This further ensures the queue remains responsive -%% even when there is a large amount of IO work to do. The -%% idle_timeout callback is utilised to ensure that conversions are -%% done as promptly as possible whilst ensuring the queue remains -%% responsive. -%% %% In the queue we keep track of both messages that are pending %% delivery and messages that are pending acks. This ensures that %% purging (deleting the former) and deletion (deleting the former and -%% the latter) are both cheap and do require any scanning through qi +%% the latter) are both cheap and do require any scanning through q %% segments. %% %% Pending acks are recorded in memory either as the tuple {SeqId, @@ -183,10 +110,7 @@ -behaviour(rabbit_backing_queue). -record(mqstate, - { q1, - delta, - q3, - q4, + { q, next_seq_id, pending_ack, pending_ack_index, @@ -221,23 +145,10 @@ msg_props }). --record(delta, - { start_seq_id, %% start_seq_id is inclusive - count, - end_seq_id %% end_seq_id is exclusive - }). - -record(tx, { pending_messages, pending_acks }). -record(sync, { acks_persistent, acks_all, pubs, funs }). -%% When we discover, on publish, that we should write some indices to -%% disk for some betas, the IO_BATCH_SIZE sets the number of betas -%% that we must be due to write indices for before we do any work at -%% all. This is both a minimum and a maximum - we don't write fewer -%% than RAM_INDEX_BATCH_SIZE indices out in one go, and we don't write -%% more - we can always come back on the next publish to do more. --define(IO_BATCH_SIZE, 64). -define(PERSISTENT_MSG_STORE, msg_store_persistent). -define(TRANSIENT_MSG_STORE, msg_store_transient). @@ -250,10 +161,6 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(delta() :: #delta { start_seq_id :: non_neg_integer(), - count :: non_neg_integer(), - end_seq_id :: non_neg_integer() }). - -type(sync() :: #sync { acks_persistent :: [[seq_id()]], acks_all :: [[seq_id()]], pubs :: [{message_properties_transformer(), @@ -261,10 +168,7 @@ funs :: [fun (() -> any())] }). -type(state() :: #mqstate { - q1 :: queue(), - delta :: delta(), - q3 :: bpqueue:bpqueue(), - q4 :: queue(), + q :: queue(), next_seq_id :: seq_id(), pending_ack :: dict(), ram_ack_index :: gb_tree(), @@ -293,13 +197,6 @@ -endif. --define(BLANK_DELTA, #delta { start_seq_id = undefined, - count = 0, - end_seq_id = undefined }). --define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, - count = 0, - end_seq_id = Z }). - -define(BLANK_SYNC, #sync { acks_persistent = [], acks_all = [], pubs = [], @@ -433,7 +330,7 @@ terminate(State) -> %% needs to delete everything that's been delivered and not ack'd. delete_and_terminate(State) -> - %% TODO: there is no need to interact with qi at all - which we do + %% TODO: there is no need to interact with q at all - which we do %% as part of 'purge' and 'remove_pending_ack', other than %% deleting it. {_PurgeCount, State1} = purge(State), @@ -455,29 +352,27 @@ delete_and_terminate(State) -> %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(State = #mqstate { q4 = Q4, +purge(State = #mqstate { q = Q, index_state = IndexState, msg_store_clients = MSCState, len = Len, persistent_count = PCount }) -> %% TODO: when there are no pending acks, which is a common case, - %% we could simply wipe the qi instead of issuing delivers and + %% we could simply wipe the q instead of issuing delivers and %% acks for all the messages. {LensByStore, IndexState1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q4, + fun rabbit_misc:queue_fold/3, Q, orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #mqstate { q1 = Q1, - index_state = IndexState2, + {LensByStore1, State1 = #mqstate { index_state = IndexState2, msg_store_clients = MSCState1 }} = - purge_betas_and_deltas(LensByStore, - State #mqstate { q4 = queue:new(), - index_state = IndexState1 }), + purge_betas(LensByStore, + State #mqstate { q = queue:new(), + index_state = IndexState1 }), {LensByStore2, IndexState3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q1, + fun rabbit_misc:queue_fold/3, queue:new(), LensByStore1, IndexState2, MSCState1), PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, a(State1 #mqstate { q1 = queue:new(), - index_state = IndexState3, + {Len, a(State1 #mqstate { index_state = IndexState3, len = 0, ram_msg_count = 0, ram_index_count = 0, @@ -514,10 +409,9 @@ publish_delivered(true, Msg = #basic_message { guid = Guid }, unconfirmed = Unconfirmed }) -> MsgStatus = (msg_status(SeqId, Msg, MsgProps)) #msg_status { is_delivered = true }, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = record_pending_ack(m(MsgStatus1), State1), + State1 = record_pending_ack(m(MsgStatus), State), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, a(State2 #mqstate { next_seq_id = SeqId + 1, + {SeqId, a(State1 #mqstate { next_seq_id = SeqId + 1, out_counter = OutCount + 1, in_counter = InCount + 1, unconfirmed = Unconfirmed1 })}. @@ -542,13 +436,12 @@ dropwhile1(Pred, State) -> {_, State2} = internal_fetch(false, MsgStatus, State1), dropwhile1(Pred, State2); false -> - %% message needs to go back into Q4 (or maybe go - %% in for the first time if it was loaded from - %% Q3). Also the msg contents might not be in - %% RAM, so read them in now - {MsgStatus1, State2 = #mqstate { q4 = Q4 }} = + %% message needs to go back into Q. Also the + %% msg contents might not be in RAM, so read + %% them in now + {MsgStatus1, State2 = #mqstate { q = Q }} = read_msg(MsgStatus, State1), - {ok, State2 #mqstate {q4 = queue:in_r(MsgStatus1, Q4) }} + {ok, State2 #mqstate {q = queue:in_r(MsgStatus1, Q) }} end end, State). @@ -566,15 +459,12 @@ fetch(AckRequired, State) -> internal_fetch(AckRequired, MsgStatus1, State2) end, State). -internal_queue_out(Fun, State = #mqstate { q4 = Q4 }) -> - case queue:out(Q4) of - {empty, _Q4} -> - case fetch_from_q3(State) of - {empty, State1} = Result -> a(State1), Result; - {loaded, {MsgStatus, State1}} -> Fun(MsgStatus, State1) - end; - {{value, MsgStatus}, Q4a} -> - Fun(MsgStatus, State #mqstate { q4 = Q4a }) +internal_queue_out(Fun, State = #mqstate { q = Q }) -> + case queue:out(Q) of + {empty, _Q} -> a(State), + {empty, State}; + {{value, MsgStatus}, Qa} -> + Fun(MsgStatus, State #mqstate { q = Qa }) end. read_msg(MsgStatus = #msg_status { msg = undefined, @@ -810,7 +700,7 @@ handle_pre_hibernate(State = #mqstate { index_state = IndexState }) -> %% -spec(status/1 :: (state()) -> [{atom(), any()}]). status(#mqstate { - q1 = Q1, delta = Delta, q3 = Q3, q4 = Q4, + q = Q, len = Len, pending_ack = PA, ram_ack_index = RAI, @@ -819,37 +709,29 @@ status(#mqstate { ram_index_count = RamIndexCount, next_seq_id = NextSeqId, persistent_count = PersistentCount }) -> - [ {q1 , queue:len(Q1)}, - {delta , Delta}, - {q3 , bpqueue:len(Q3)}, - {q4 , queue:len(Q4)}, - {len , Len}, - {pending_acks , dict:size(PA)}, - {outstanding_txns , length(From)}, - {ram_msg_count , RamMsgCount}, - {ram_ack_count , gb_trees:size(RAI)}, - {ram_index_count , RamIndexCount}, - {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount} ]. + [ {q, queue:len(Q)}, + {len, Len}, + {pending_acks, dict:size(PA)}, + {outstanding_txns, length(From)}, + {ram_msg_count, RamMsgCount}, + {ram_ack_count, gb_trees:size(RAI)}, + {ram_index_count, RamIndexCount}, + {next_seq_id, NextSeqId}, + {persistent_count, PersistentCount} ]. %%---------------------------------------------------------------------------- %% Minor helpers %%---------------------------------------------------------------------------- -a(State = #mqstate { q1 = Q1, delta = Delta, q3 = Q3, q4 = Q4, +a(State = #mqstate { q = Q, len = Len, persistent_count = PersistentCount, ram_msg_count = RamMsgCount, ram_index_count = RamIndexCount }) -> - E1 = queue:is_empty(Q1), - ED = Delta#delta.count == 0, - E3 = bpqueue:is_empty(Q3), - E4 = queue:is_empty(Q4), + E4 = queue:is_empty(Q), LZ = Len == 0, - true = E1 or not E3, - true = ED or not E3, - true = LZ == (E3 and E4), + true = LZ == E4, true = Len >= 0, true = PersistentCount >= 0, @@ -898,11 +780,6 @@ with_immutable_msg_store_state(MSCState, Fun) -> msg_store_client_init(MsgStore, MsgOnDiskFun) -> rabbit_msg_store:client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). -msg_store_write(MSCState, _IsPersistent, Guid, Msg) -> - with_immutable_msg_store_state( - MSCState, - fun (MSCState1) -> rabbit_msg_store:write(Guid, Msg, MSCState1) end). - msg_store_read(MSCState, _IsPersistent, Guid) -> with_msg_store_state( MSCState, false, @@ -933,40 +810,18 @@ store_tx(Txn, Tx) -> put({txn, Txn}, Tx). erase_tx(Txn) -> erase({txn, Txn}). -betas_from_index_entries(List, IndexState) -> - {Filtered, Delivers, Acks} = - lists:foldr( - fun ({_Guid, SeqId, _MsgProps, _IsPersistent, IsDelivered}, - {Filtered1, Delivers1, Acks1}) -> - {Filtered1, cons_if(not IsDelivered, SeqId, Delivers1), - [SeqId | Acks1]} - end, {[], [], []}, List), - {bpqueue:from_list([{true, Filtered}]), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -beta_fold(Fun, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). - %%---------------------------------------------------------------------------- %% Internal major helpers for Public API %%---------------------------------------------------------------------------- init(IndexState, DeltaCount, Terms, PersistentClient, TransientClient) -> - {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), + {_LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), + DeltaCount = 0, % Sure hope so! DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), - Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of - true -> ?BLANK_DELTA; - false -> #delta { start_seq_id = LowSeqId, - count = DeltaCount1, - end_seq_id = NextSeqId } - end, + DeltaCount1 = 0, % Sure hope so! State = #mqstate { - q1 = queue:new(), - delta = Delta, - q3 = bpqueue:new(), - q4 = queue:new(), + q = queue:new(), next_seq_id = NextSeqId, pending_ack = dict:new(), ram_ack_index = gb_trees:empty(), @@ -988,7 +843,7 @@ init(IndexState, DeltaCount, Terms, PersistentClient, TransientClient) -> unconfirmed = gb_sets:new(), ack_out_counter = 0, ack_in_counter = 0 }, - a(maybe_deltas_to_betas(State)). + a(State). tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, State = #mqstate { @@ -1037,21 +892,7 @@ tx_commit_index(State = #mqstate { on_sync = #sync { [ Fun() || Fun <- lists:reverse(SFuns) ], State1 #mqstate { index_state = IndexState1, on_sync = ?BLANK_SYNC }. -purge_betas_and_deltas(LensByStore, - State = #mqstate { q3 = Q3, - index_state = IndexState, - msg_store_clients = MSCState }) -> - case bpqueue:is_empty(Q3) of - true -> {LensByStore, State}; - false -> {LensByStore1, IndexState1} = - remove_queue_entries(fun beta_fold/3, Q3, - LensByStore, IndexState, MSCState), - purge_betas_and_deltas(LensByStore1, - maybe_deltas_to_betas( - State #mqstate { - q3 = bpqueue:new(), - index_state = IndexState1 })) - end. +purge_betas(LensByStore, State) -> {LensByStore, State}. remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> {GuidsByStore, Delivers, Acks} = @@ -1088,7 +929,7 @@ sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> publish(Msg = #basic_message { guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, IsDelivered, MsgOnDisk, - State = #mqstate { q1 = Q1, q3 = Q3, q4 = Q4, + State = #mqstate { q = Q, next_seq_id = SeqId, len = Len, in_counter = InCount, @@ -1096,59 +937,14 @@ publish(Msg = #basic_message { guid = Guid }, unconfirmed = Unconfirmed }) -> MsgStatus = (msg_status(SeqId, Msg, MsgProps)) #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = case bpqueue:is_empty(Q3) of - false -> State1 #mqstate { q1 = queue:in(m(MsgStatus1), Q1) }; - true -> State1 #mqstate { q4 = queue:in(m(MsgStatus1), Q4) } - end, + State1 = State #mqstate { q = queue:in(m(MsgStatus), Q) }, Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, State2 #mqstate { next_seq_id = SeqId + 1, + {SeqId, State1 #mqstate { next_seq_id = SeqId + 1, len = Len + 1, in_counter = InCount + 1, ram_msg_count = RamMsgCount + 1, unconfirmed = Unconfirmed1 }}. -maybe_write_msg_to_disk(_Force, MsgStatus = #msg_status { - msg_on_disk = true }, _MSCState) -> - MsgStatus; -maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { - msg = Msg, guid = Guid }, MSCState) - when Force -> - Msg1 = Msg #basic_message { - %% don't persist any recoverable decoded properties - content = rabbit_binary_parser:clear_decoded_content( - Msg #basic_message.content)}, - ok = msg_store_write(MSCState, false, Guid, Msg1), - MsgStatus #msg_status { msg_on_disk = true }; -maybe_write_msg_to_disk(_Force, MsgStatus, _MSCState) -> - MsgStatus. - -maybe_write_index_to_disk(_Force, MsgStatus = #msg_status { - index_on_disk = true }, IndexState) -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - {MsgStatus, IndexState}; -maybe_write_index_to_disk(Force, MsgStatus = #msg_status { - guid = Guid, - seq_id = SeqId, - is_delivered = IsDelivered, - msg_props = MsgProps}, IndexState) - when Force -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - IndexState1 = rabbit_queue_index:publish( - Guid, SeqId, MsgProps, false, IndexState), - {MsgStatus #msg_status { index_on_disk = true }, - maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; -maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> - {MsgStatus, IndexState}. - -maybe_write_to_disk(ForceMsg, ForceIndex, MsgStatus, - State = #mqstate { index_state = IndexState, - msg_store_clients = MSCState }) -> - MsgStatus1 = maybe_write_msg_to_disk(ForceMsg, MsgStatus, MSCState), - {MsgStatus2, IndexState1} = - maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), - {MsgStatus2, State #mqstate { index_state = IndexState1 }}. - %%---------------------------------------------------------------------------- %% Internal gubbins for acks %%---------------------------------------------------------------------------- @@ -1274,82 +1070,3 @@ msg_indices_written_to_disk(QPid, GuidSet) -> gb_sets:intersection( gb_sets:union(MIOD, GuidSet), UC) }) end). - -%%---------------------------------------------------------------------------- -%% Phase changes -%%---------------------------------------------------------------------------- - -fetch_from_q3(State = #mqstate { - q1 = Q1, - delta = #delta { count = DeltaCount }, - q3 = Q3, - q4 = Q4, - ram_index_count = RamIndexCount}) -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - {empty, State}; - {{value, IndexOnDisk, MsgStatus}, Q3a} -> - RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), - true = RamIndexCount1 >= 0, %% ASSERTION - State1 = State #mqstate { q3 = Q3a, - ram_index_count = RamIndexCount1 }, - State2 = - case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of - {true, true} -> - %% q3 is now empty, it wasn't before; delta is - %% still empty. We know q4 is empty otherwise - %% we wouldn't be loading from q3. As such, we - %% can just set q4 to Q1. - true = queue:is_empty(Q4), %% ASSERTION - State1 #mqstate { q1 = queue:new(), - q4 = Q1 }; - {true, false} -> - maybe_deltas_to_betas(State1); - {false, _} -> - %% q3 still isn't empty, we've not touched - %% delta, so the invariants between q1, delta - %% and q3 are maintained - State1 - end, - {loaded, {MsgStatus, State2}} - end. - -maybe_deltas_to_betas(State = #mqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> - State; -maybe_deltas_to_betas(State = #mqstate { - delta = Delta, - q3 = Q3, - index_state = IndexState }) -> - #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = DeltaSeqIdEnd } = Delta, - DeltaSeqId1 = - lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), - DeltaSeqIdEnd]), - {List, IndexState1} = - rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), - {Q3a, IndexState2} = - betas_from_index_entries(List, IndexState1), - State1 = State #mqstate { index_state = IndexState2 }, - case bpqueue:len(Q3a) of - 0 -> - %% we ignored every message in the segment due to it being - %% transient and below the threshold - maybe_deltas_to_betas( - State1 #mqstate { - delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); - Q3aLen -> - Q3b = bpqueue:join(Q3, Q3a), - case DeltaCount - Q3aLen of - 0 -> - State1 #mqstate { delta = ?BLANK_DELTA, - q3 = Q3b }; - N when N > 0 -> - Delta1 = #delta { start_seq_id = DeltaSeqId1, - count = N, - end_seq_id = DeltaSeqIdEnd }, - State1 #mqstate { delta = Delta1, - q3 = Q3b } - end - end. - -- cgit v1.2.1 From 4ef03924144e04307a84294d4d099dc2ef2458d3 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 21 Dec 2010 20:23:41 -0800 Subject: Cleaned up state, helpers, etc. --- src/rabbit_mnesia_queue.erl | 527 +++++++++++++------------------------------- 1 file changed, 155 insertions(+), 372 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index d1097593..e1bacdb0 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -37,9 +37,6 @@ set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, status/1]). -%% exported for testing only --export([start_msg_store/2, stop_msg_store/0, init/4]). - %%---------------------------------------------------------------------------- %% This is Take Three of a simple initial Mnesia implementation of the %% rabbit_backing_queue behavior. This version was created by starting @@ -47,7 +44,6 @@ %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- -%% Definitions: %% In the queue we keep track of both messages that are pending %% delivery and messages that are pending acks. This ensures that @@ -55,16 +51,7 @@ %% the latter) are both cheap and do require any scanning through q %% segments. %% -%% Pending acks are recorded in memory either as the tuple {SeqId, -%% Guid, MsgProps} (tuple-form) or as the message itself (message- -%% form). Acks for messages are stored in tuple-form if the message -%% has been sent to disk as part of the memory reduction process. For -%% messages that haven't already been written to disk, acks are stored -%% in message-form. -%% -%% During memory reduction, acks stored in message-form are converted -%% to tuple-form, and the corresponding messages are pushed out to -%% disk. +%% Pending acks are recorded in memory as the message itself. %% %% All queues are durable in this version, no matter how they are %% requested. (We may need to remember the requested type in the @@ -74,34 +61,6 @@ %% code. (This breaks some tests, since all messages are temporarily %% dropped on restart.) %% -%% Notes on Clean Shutdown -%% (This documents behaviour in variable_queue, queue_index and -%% msg_store.) -%% -%% In order to try to achieve as fast a start-up as possible, if a -%% clean shutdown occurs, we try to save out state to disk to reduce -%% work on startup. In the msg_store this takes the form of the -%% index_module's state, plus the file_summary ets table, and client -%% refs. In the VQ, this takes the form of the count of persistent -%% messages in the queue and references into the msg_stores. The -%% queue_index adds to these terms the details of its segments and -%% stores the terms in the queue directory. -%% -%% Two message stores are used. One is created for persistent messages -%% that must survive restarts, and the other is used for all other -%% messages that just happen to need to be written to disk. On start -%% up we can therefore nuke the transient message store, and be sure -%% that the messages in the persistent store are all that we need. -%% -%% The references to the msg_stores are there so that the msg_store -%% knows to only trust its saved state if all of the queues it was -%% previously talking to come up cleanly. Likewise, the queues -%% themselves (esp queue_index) skips work in init if all the queues -%% and msg_store were shutdown cleanly. This gives both good speed -%% improvements and also robustness so that if anything possibly went -%% wrong in shutdown (or there was subsequent manual tampering), all -%% messages and queues that can be recovered are recovered, safely. -%% %% May need to add code to throw away transient messages upon %% initialization, depending on storage strategy. %% @@ -109,7 +68,7 @@ -behaviour(rabbit_backing_queue). --record(mqstate, +-record(state, { q, next_seq_id, pending_ack, @@ -118,18 +77,9 @@ index_state, msg_store_clients, on_sync, - len, - persistent_count, - - ram_msg_count, - ram_msg_count_prev, - ram_ack_count_prev, - ram_index_count, out_counter, in_counter, - msgs_on_disk, - msg_indices_on_disk, unconfirmed, ack_out_counter, ack_in_counter @@ -140,14 +90,12 @@ guid, msg, is_delivered, - msg_on_disk, - index_on_disk, msg_props }). -record(tx, { pending_messages, pending_acks }). --record(sync, { acks_persistent, acks_all, pubs, funs }). +-record(sync, { acks, pubs, funs }). -define(PERSISTENT_MSG_STORE, msg_store_persistent). -define(TRANSIENT_MSG_STORE, msg_store_transient). @@ -161,13 +109,12 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(sync() :: #sync { acks_persistent :: [[seq_id()]], - acks_all :: [[seq_id()]], +-type(sync() :: #sync { acks :: [[seq_id()]], pubs :: [{message_properties_transformer(), [rabbit_types:basic_message()]}], funs :: [fun (() -> any())] }). --type(state() :: #mqstate { +-type(state() :: #state { q :: queue(), next_seq_id :: seq_id(), pending_ack :: dict(), @@ -176,29 +123,18 @@ msg_store_clients :: 'undefined' | {{any(), binary()}, {any(), binary()}}, on_sync :: sync(), - len :: non_neg_integer(), - persistent_count :: non_neg_integer(), - - ram_msg_count :: non_neg_integer(), - ram_msg_count_prev :: non_neg_integer(), - ram_index_count :: non_neg_integer(), out_counter :: non_neg_integer(), in_counter :: non_neg_integer(), - msgs_on_disk :: gb_set(), - msg_indices_on_disk :: gb_set(), unconfirmed :: gb_set(), ack_out_counter :: non_neg_integer(), ack_in_counter :: non_neg_integer() }). -%% Need declaration for msg_status and tx. - -include("rabbit_backing_queue_spec.hrl"). -endif. --define(BLANK_SYNC, #sync { acks_persistent = [], - acks_all = [], +-define(BLANK_SYNC, #sync { acks = [], pubs = [], funs = [] }). @@ -255,14 +191,14 @@ stop_msg_store() -> %%---------------------------------------------------------------------------- %% init/3 initializes one backing queue and its state. -%% -spec(init/3 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) -> -%% state()). +%% -spec(init/3 :: +%% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) +%% -> state()). init(QueueName, _IsDurable, Recover) -> - Self = self(), init(QueueName, Recover, - fun (Guids) -> msgs_written_to_disk(Self, Guids) end, - fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). + fun (_Guids) -> ok end, + fun (_Guids) -> ok end). init(QueueName, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), @@ -300,9 +236,8 @@ init(QueueName, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> %% -spec(terminate/1 :: (state()) -> state()). terminate(State) -> - State1 = #mqstate { persistent_count = PCount, - index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = + State1 = #state { index_state = IndexState, + msg_store_clients = {MSCStateP, MSCStateT} } = remove_pending_ack(true, tx_commit_index(State)), PRef = case MSCStateP of undefined -> undefined; @@ -312,10 +247,9 @@ terminate(State) -> ok = rabbit_msg_store:client_terminate(MSCStateT), TRef = rabbit_msg_store:client_ref(MSCStateT), Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}, - {persistent_count, PCount}], - a(State1 #mqstate { index_state = rabbit_queue_index:terminate( - Terms, IndexState), + {transient_ref, TRef}], + a(State1 #state { index_state = rabbit_queue_index:terminate( + Terms, IndexState), msg_store_clients = undefined }). %%---------------------------------------------------------------------------- @@ -334,8 +268,8 @@ delete_and_terminate(State) -> %% as part of 'purge' and 'remove_pending_ack', other than %% deleting it. {_PurgeCount, State1} = purge(State), - State2 = #mqstate { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = + State2 = #state { index_state = IndexState, + msg_store_clients = {MSCStateP, MSCStateT} } = remove_pending_ack(false, State1), IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), case MSCStateP of @@ -343,8 +277,8 @@ delete_and_terminate(State) -> _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) end, rabbit_msg_store:client_delete_and_terminate(MSCStateT), - a(State2 #mqstate { index_state = IndexState1, - msg_store_clients = undefined }). + a(State2 #state { index_state = IndexState1, + msg_store_clients = undefined }). %%---------------------------------------------------------------------------- %% purge/1 removes all messages in the queue, but not messages which @@ -352,37 +286,33 @@ delete_and_terminate(State) -> %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(State = #mqstate { q = Q, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> +purge(State = #state { q = Q, + index_state = IndexState, + msg_store_clients = MSCState, + len = Len }) -> %% TODO: when there are no pending acks, which is a common case, %% we could simply wipe the q instead of issuing delivers and %% acks for all the messages. {LensByStore, IndexState1} = remove_queue_entries( fun rabbit_misc:queue_fold/3, Q, orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #mqstate { index_state = IndexState2, - msg_store_clients = MSCState1 }} = - purge_betas(LensByStore, - State #mqstate { q = queue:new(), - index_state = IndexState1 }), - {LensByStore2, IndexState3} = remove_queue_entries( + {LensByStore1, State1 = #state { index_state = IndexState2, + msg_store_clients = MSCState1 }} = + {LensByStore, + State #state { q = queue:new(), index_state = IndexState1 }}, + {_LensByStore2, IndexState3} = remove_queue_entries( fun rabbit_misc:queue_fold/3, queue:new(), LensByStore1, IndexState2, MSCState1), - PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, a(State1 #mqstate { index_state = IndexState3, - len = 0, - ram_msg_count = 0, - ram_index_count = 0, - persistent_count = PCount1 })}. + {Len, a(State1 #state { index_state = IndexState3, len = 0 })}. %%---------------------------------------------------------------------------- %% publish/3 publishes a message. -%% -spec(publish/3 :: (rabbit_types:basic_message(), -%% rabbit_types:message_properties(), state()) -> state()). +%% -spec(publish/3 :: +%% (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). publish(Msg, MsgProps, State) -> {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), @@ -393,36 +323,39 @@ publish(Msg, MsgProps, State) -> %% passed straight out to a client. The queue will be empty for these %% calls (i.e. saves the round trip through the backing queue). -%% -spec(publish_delivered/4 :: (ack_required(), rabbit_types:basic_message(), -%% rabbit_types:message_properties(), state()) -%% -> {ack(), state()}). +%% -spec(publish_delivered/4 :: +%% (ack_required(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> {ack(), state()}). -publish_delivered(false, _Msg, _MsgProps, State = #mqstate { len = 0 }) -> +publish_delivered(false, _Msg, _MsgProps, State = #state { len = 0 }) -> {blank_ack, a(State)}; publish_delivered(true, Msg = #basic_message { guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - State = #mqstate { len = 0, - next_seq_id = SeqId, - out_counter = OutCount, - in_counter = InCount, - unconfirmed = Unconfirmed }) -> + State = #state { len = 0, + next_seq_id = SeqId, + out_counter = OutCount, + in_counter = InCount, + unconfirmed = Unconfirmed }) -> MsgStatus = (msg_status(SeqId, Msg, MsgProps)) #msg_status { is_delivered = true }, State1 = record_pending_ack(m(MsgStatus), State), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, a(State1 #mqstate { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, - in_counter = InCount + 1, - unconfirmed = Unconfirmed1 })}. + {SeqId, a(State1 #state { next_seq_id = SeqId + 1, + out_counter = OutCount + 1, + in_counter = InCount + 1, + unconfirmed = Unconfirmed1 })}. %%---------------------------------------------------------------------------- %% dropwhile/2 drops messages from the head of the queue while the %% supplied predicate returns true. %% -spec(dropwhile/2 :: -%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) -%% -> state()). +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). dropwhile(Pred, State) -> {_OkOrEmpty, State1} = dropwhile1(Pred, State), @@ -436,12 +369,10 @@ dropwhile1(Pred, State) -> {_, State2} = internal_fetch(false, MsgStatus, State1), dropwhile1(Pred, State2); false -> - %% message needs to go back into Q. Also the - %% msg contents might not be in RAM, so read - %% them in now - {MsgStatus1, State2 = #mqstate { q = Q }} = - read_msg(MsgStatus, State1), - {ok, State2 #mqstate {q = queue:in_r(MsgStatus1, Q) }} + %% message needs to go back into Q + {MsgStatus1, State2 = #state { q = Q }} = + {MsgStatus, State1}, + {ok, State2 #state {q = queue:in_r(MsgStatus1, Q) }} end end, State). @@ -455,61 +386,23 @@ fetch(AckRequired, State) -> fun(MsgStatus, State1) -> %% it's possible that the message wasn't read from disk %% at this point, so read it in. - {MsgStatus1, State2} = read_msg(MsgStatus, State1), - internal_fetch(AckRequired, MsgStatus1, State2) + internal_fetch(AckRequired, MsgStatus, State1) end, State). -internal_queue_out(Fun, State = #mqstate { q = Q }) -> +internal_queue_out(Fun, State = #state { q = Q }) -> case queue:out(Q) of {empty, _Q} -> a(State), {empty, State}; {{value, MsgStatus}, Qa} -> - Fun(MsgStatus, State #mqstate { q = Qa }) + Fun(MsgStatus, State #state { q = Qa }) end. -read_msg(MsgStatus = #msg_status { msg = undefined, - guid = Guid }, - State = #mqstate { ram_msg_count = RamMsgCount, - msg_store_clients = MSCState}) -> - {{ok, Msg = #basic_message {}}, MSCState1} = - msg_store_read(MSCState, false, Guid), - {MsgStatus #msg_status { msg = Msg }, - State #mqstate { ram_msg_count = RamMsgCount + 1, - msg_store_clients = MSCState1 }}; -read_msg(MsgStatus, State) -> - {MsgStatus, State}. - internal_fetch(AckRequired, MsgStatus = #msg_status { seq_id = SeqId, - guid = Guid, msg = Msg, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - State = #mqstate {ram_msg_count = RamMsgCount, - out_counter = OutCount, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len }) -> - %% 1. Mark it delivered if necessary - IndexState1 = maybe_write_delivered( - IndexOnDisk andalso not IsDelivered, - SeqId, IndexState), - - %% 2. Remove from msg_store and queue index, if necessary - Rem = fun () -> - ok = msg_store_remove(MSCState, false, [Guid]) - end, - Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, - IndexState2 = - case {AckRequired, MsgOnDisk, IndexOnDisk} of - {false, true, false} -> Rem(), IndexState1; - {false, true, true} -> Rem(), Ack(); - {true, true, true} -> Ack(); - _ -> IndexState1 - end, - - %% 3. If an ack is required, add something sensible to PA + is_delivered = IsDelivered }, + State = #state {out_counter = OutCount, + len = Len }) -> {AckTag, State1} = case AckRequired of true -> StateN = record_pending_ack( MsgStatus #msg_status { @@ -517,15 +410,10 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { {SeqId, StateN}; false -> {blank_ack, State} end, - Len1 = Len - 1, - RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), - {{Msg, IsDelivered, AckTag, Len1}, - a(State1 #mqstate { ram_msg_count = RamMsgCount1, - out_counter = OutCount + 1, - index_state = IndexState2, - len = Len1 })}. + a(State1 #state { out_counter = OutCount + 1, + len = Len1 })}. %%---------------------------------------------------------------------------- %% ack/2 acknowledges messages. Acktags supplied are for messages @@ -548,9 +436,12 @@ ack(AckTags, State) -> %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. -%% -spec(tx_publish/4 :: (rabbit_types:txn(), rabbit_types:basic_message(), -%% rabbit_types:message_properties(), state()) -%% -> state()). +%% -spec(tx_publish/4 :: +%% (rabbit_types:txn(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). tx_publish(Txn, Msg, MsgProps, State) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), @@ -573,7 +464,7 @@ tx_ack(Txn, AckTags, State) -> %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). -tx_rollback(Txn, State = #mqstate { msg_store_clients = MSCState }) -> +tx_rollback(Txn, State = #state { msg_store_clients = MSCState }) -> #tx { pending_acks = AckTags } = lookup_tx(Txn), erase_tx(Txn), ok = msg_store_remove(MSCState, true, []), @@ -585,8 +476,11 @@ tx_rollback(Txn, State = #mqstate { msg_store_clients = MSCState }) -> %% possibility of commit coalescing. %% -spec(tx_commit/4 :: -%% (rabbit_types:txn(), fun (() -> any()), -%% message_properties_transformer(), state()) -> {[ack()], state()}). +%% (rabbit_types:txn(), +%% fun (() -> any()), +%% message_properties_transformer(), +%% state()) +%% -> {[ack()], state()}). tx_commit(Txn, Fun, MsgPropsFun, State) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), @@ -599,8 +493,8 @@ tx_commit(Txn, Fun, MsgPropsFun, State) -> %% requeue/3 reinserts messages into the queue which have already been %% delivered and were pending acknowledgement. -%% -spec(requeue/3 :: ([ack()], message_properties_transformer(), state()) -%% -> state()). +%% -spec(requeue/3 :: +%% ([ack()], message_properties_transformer(), state()) -> state()). requeue(AckTags, MsgPropsFun, State) -> {_Guids, State1} = @@ -610,10 +504,10 @@ requeue(AckTags, MsgPropsFun, State) -> true, false, State1), State2; ({_IsPersistent, Guid, MsgProps}, State1) -> - #mqstate { msg_store_clients = MSCState } = State1, + #state { msg_store_clients = MSCState } = State1, {{ok, Msg = #basic_message{}}, MSCState1} = msg_store_read(MSCState, false, Guid), - State2 = State1 #mqstate { msg_store_clients = MSCState1 }, + State2 = State1 #state { msg_store_clients = MSCState1 }, {_SeqId, State3} = publish(Msg, MsgPropsFun(MsgProps), true, true, State2), State3 @@ -626,7 +520,7 @@ requeue(AckTags, MsgPropsFun, State) -> %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(#mqstate { len = Len }) -> Len. +len(#state { len = Len }) -> Len. %%---------------------------------------------------------------------------- %% is_empty/1 returns 'true' if the queue is empty, and 'false' @@ -649,7 +543,8 @@ is_empty(State) -> 0 == len(State). %% queue rates. %% -spec(set_ram_duration_target/2 :: -%% (('undefined' | 'infinity' | number()), state()) -> state()). +%% (('undefined' | 'infinity' | number()), state()) +%% -> state()). set_ram_duration_target(_DurationTarget, State) -> State. @@ -670,7 +565,7 @@ ram_duration(State) -> {0, State}. %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -needs_idle_timeout(_State = #mqstate { on_sync = ?BLANK_SYNC }) -> +needs_idle_timeout(_State = #state { on_sync = ?BLANK_SYNC }) -> false; needs_idle_timeout(_State) -> true. @@ -690,8 +585,8 @@ idle_timeout(State) -> a(tx_commit_index(State)). %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -handle_pre_hibernate(State = #mqstate { index_state = IndexState }) -> - State #mqstate { index_state = rabbit_queue_index:flush(IndexState) }. +handle_pre_hibernate(State = #state { index_state = IndexState }) -> + State #state { index_state = rabbit_queue_index:flush(IndexState) }. %%---------------------------------------------------------------------------- %% status/1 exists for debugging purposes, to be able to expose state @@ -699,60 +594,32 @@ handle_pre_hibernate(State = #mqstate { index_state = IndexState }) -> %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(#mqstate { +status(#state { q = Q, len = Len, pending_ack = PA, ram_ack_index = RAI, on_sync = #sync { funs = From }, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, - next_seq_id = NextSeqId, - persistent_count = PersistentCount }) -> - [ {q, queue:len(Q)}, - {len, Len}, - {pending_acks, dict:size(PA)}, - {outstanding_txns, length(From)}, - {ram_msg_count, RamMsgCount}, - {ram_ack_count, gb_trees:size(RAI)}, - {ram_index_count, RamIndexCount}, - {next_seq_id, NextSeqId}, - {persistent_count, PersistentCount} ]. + next_seq_id = NextSeqId }) -> + [{q, queue:len(Q)}, + {len, Len}, + {pending_acks, dict:size(PA)}, + {outstanding_txns, length(From)}, + {ram_ack_count, gb_trees:size(RAI)}, + {next_seq_id, NextSeqId}]. %%---------------------------------------------------------------------------- %% Minor helpers %%---------------------------------------------------------------------------- -a(State = #mqstate { q = Q, - len = Len, - persistent_count = PersistentCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }) -> +a(State = #state { q = Q, len = Len }) -> E4 = queue:is_empty(Q), LZ = Len == 0, - true = LZ == E4, - true = Len >= 0, - true = PersistentCount >= 0, - true = RamMsgCount >= 0, - true = RamIndexCount >= 0, - State. -m(MsgStatus = #msg_status { msg = Msg, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }) -> - true = (not IndexOnDisk) or MsgOnDisk, - true = (Msg =/= undefined) or MsgOnDisk, - - MsgStatus. - -one_if(true ) -> 1; -one_if(false) -> 0. - -cons_if(true, E, L) -> [E | L]; -cons_if(false, _E, L) -> L. +m(MsgStatus) -> MsgStatus. gb_sets_maybe_insert(false, _Val, Set) -> Set; %% when requeueing, we re-add a guid to the unconfirmed set @@ -760,7 +627,6 @@ gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). msg_status(SeqId, Msg = #basic_message { guid = Guid }, MsgProps) -> #msg_status { seq_id = SeqId, guid = Guid, msg = Msg, is_delivered = false, - msg_on_disk = false, index_on_disk = false, msg_props = MsgProps }. with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> @@ -795,11 +661,6 @@ msg_store_release(MSCState, _IsPersistent, Guids) -> MSCState, fun (MCSState1) -> rabbit_msg_store:release(Guids, MCSState1) end). -maybe_write_delivered(false, _SeqId, IndexState) -> - IndexState; -maybe_write_delivered(true, SeqId, IndexState) -> - rabbit_queue_index:deliver([SeqId], IndexState). - lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx { pending_messages = [], pending_acks = [] }; @@ -814,13 +675,11 @@ erase_tx(Txn) -> erase({txn, Txn}). %% Internal major helpers for Public API %%---------------------------------------------------------------------------- -init(IndexState, DeltaCount, Terms, PersistentClient, TransientClient) -> +init(IndexState, DeltaCount, _Terms, PersistentClient, TransientClient) -> {_LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), DeltaCount = 0, % Sure hope so! - DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), - DeltaCount1 = 0, % Sure hope so! - State = #mqstate { + State = #state { q = queue:new(), next_seq_id = NextSeqId, pending_ack = dict:new(), @@ -828,71 +687,54 @@ init(IndexState, DeltaCount, Terms, PersistentClient, TransientClient) -> index_state = IndexState1, msg_store_clients = {PersistentClient, TransientClient}, on_sync = ?BLANK_SYNC, - - len = DeltaCount1, - persistent_count = DeltaCount1, - - ram_msg_count = 0, - ram_msg_count_prev = 0, - ram_ack_count_prev = 0, - ram_index_count = 0, + len = DeltaCount, out_counter = 0, in_counter = 0, - msgs_on_disk = gb_sets:new(), - msg_indices_on_disk = gb_sets:new(), unconfirmed = gb_sets:new(), ack_out_counter = 0, ack_in_counter = 0 }, a(State). tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, - State = #mqstate { + State = #state { on_sync = OnSync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, + acks = SAcks, pubs = SPubs, funs = SFuns } }) -> case HasPersistentPubs of - true -> State #mqstate { + true -> State #state { on_sync = #sync { - acks_persistent = [[] | SPAcks], - acks_all = [AckTags | SAcks], + acks = [AckTags | SAcks], pubs = [{MsgPropsFun, Pubs} | SPubs], funs = [Fun | SFuns] }}; false -> State1 = tx_commit_index( - State #mqstate { + State #state { on_sync = #sync { - acks_persistent = [], - acks_all = [AckTags], + acks = [AckTags], pubs = [{MsgPropsFun, Pubs}], funs = [Fun] } }), - State1 #mqstate { on_sync = OnSync } + State1 #state { on_sync = OnSync } end. -tx_commit_index(State = #mqstate { on_sync = ?BLANK_SYNC }) -> - State; -tx_commit_index(State = #mqstate { on_sync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns } }) -> - PAcks = lists:append(SPAcks), +tx_commit_index(State = #state { on_sync = ?BLANK_SYNC }) -> State; +tx_commit_index(State = #state { on_sync = #sync { + acks = SAcks, + pubs = SPubs, + funs = SFuns } }) -> Acks = lists:append(SAcks), {_Guids, NewState} = ack(Acks, State), Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), {Msg, MsgProps} <- lists:reverse(PubsN)], - {SeqIds, State1 = #mqstate { index_state = IndexState }} = + {SeqIds, State1 = #state { index_state = IndexState }} = lists:foldl( fun ({Msg, MsgProps}, {SeqIdsAcc, State2}) -> {_SeqId, State3} = publish(Msg, MsgProps, false, false, State2), {SeqIdsAcc, State3} - end, {PAcks, NewState}, Pubs), + end, {[], NewState}, Pubs), IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), [ Fun() || Fun <- lists:reverse(SFuns) ], - State1 #mqstate { index_state = IndexState1, on_sync = ?BLANK_SYNC }. - -purge_betas(LensByStore, State) -> {LensByStore, State}. + State1 #state { index_state = IndexState1, on_sync = ?BLANK_SYNC }. remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> {GuidsByStore, Delivers, Acks} = @@ -904,17 +746,8 @@ remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> rabbit_queue_index:ack(Acks, rabbit_queue_index:deliver(Delivers, IndexState))}. -remove_queue_entries1( - #msg_status { guid = Guid, seq_id = SeqId, - is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - {GuidsByStore, Delivers, Acks}) -> - {case MsgOnDisk of - true -> rabbit_misc:orddict_cons(false, Guid, GuidsByStore); - false -> GuidsByStore - end, - cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), - cons_if(IndexOnDisk, SeqId, Acks)}. +remove_queue_entries1(_MsgStatus, {GuidsByStore, Delivers, Acks}) -> + {GuidsByStore, Delivers, Acks}. sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> orddict:fold( @@ -928,52 +761,44 @@ sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> publish(Msg = #basic_message { guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, MsgOnDisk, - State = #mqstate { q = Q, - next_seq_id = SeqId, - len = Len, - in_counter = InCount, - ram_msg_count = RamMsgCount, - unconfirmed = Unconfirmed }) -> + IsDelivered, _MsgOnDisk, + State = #state { q = Q, + next_seq_id = SeqId, + len = Len, + in_counter = InCount, + unconfirmed = Unconfirmed }) -> MsgStatus = (msg_status(SeqId, Msg, MsgProps)) - #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, - State1 = State #mqstate { q = queue:in(m(MsgStatus), Q) }, + #msg_status { is_delivered = IsDelivered }, + State1 = State #state { q = queue:in(m(MsgStatus), Q) }, Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, State1 #mqstate { next_seq_id = SeqId + 1, - len = Len + 1, - in_counter = InCount + 1, - ram_msg_count = RamMsgCount + 1, - unconfirmed = Unconfirmed1 }}. + {SeqId, State1 #state { next_seq_id = SeqId + 1, + len = Len + 1, + in_counter = InCount + 1, + unconfirmed = Unconfirmed1 }}. %%---------------------------------------------------------------------------- %% Internal gubbins for acks %%---------------------------------------------------------------------------- record_pending_ack(#msg_status { seq_id = SeqId, - guid = Guid, - msg_on_disk = MsgOnDisk, - msg_props = MsgProps } = MsgStatus, - State = #mqstate { pending_ack = PA, - ram_ack_index = RAI, - ack_in_counter = AckInCount}) -> - {AckEntry, RAI1} = - case MsgOnDisk of - true -> {{false, Guid, MsgProps}, RAI}; - false -> {MsgStatus, gb_trees:insert(SeqId, Guid, RAI)} - end, + guid = Guid } = MsgStatus, + State = #state { pending_ack = PA, + ram_ack_index = RAI, + ack_in_counter = AckInCount}) -> + {AckEntry, RAI1} = {MsgStatus, gb_trees:insert(SeqId, Guid, RAI)}, PA1 = dict:store(SeqId, AckEntry, PA), - State #mqstate { pending_ack = PA1, - ram_ack_index = RAI1, - ack_in_counter = AckInCount + 1}. + State #state { pending_ack = PA1, + ram_ack_index = RAI1, + ack_in_counter = AckInCount + 1}. remove_pending_ack(KeepPersistent, - State = #mqstate { pending_ack = PA, - index_state = IndexState, - msg_store_clients = MSCState }) -> + State = #state { pending_ack = PA, + index_state = IndexState, + msg_store_clients = MSCState }) -> {PersistentSeqIds, GuidsByStore, _AllGuids} = dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - State1 = State #mqstate { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, + State1 = State #state { pending_ack = dict:new(), + ram_ack_index = gb_trees:empty() }, case KeepPersistent of true -> case orddict:find(false, GuidsByStore) of error -> State1; @@ -985,22 +810,21 @@ remove_pending_ack(KeepPersistent, rabbit_queue_index:ack(PersistentSeqIds, IndexState), [ok = msg_store_remove(MSCState, false, Guids) || {_IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - State1 #mqstate { index_state = IndexState1 } + State1 #state { index_state = IndexState1 } end. ack(_MsgStoreFun, _Fun, [], State) -> {[], State}; ack(MsgStoreFun, Fun, AckTags, State) -> {{PersistentSeqIds, GuidsByStore, AllGuids}, - State1 = #mqstate { index_state = IndexState, - msg_store_clients = MSCState, - persistent_count = PCount, - ack_out_counter = AckOutCount }} = + State1 = #state { index_state = IndexState, + msg_store_clients = MSCState, + ack_out_counter = AckOutCount }} = lists:foldl( - fun (SeqId, {Acc, State2 = #mqstate { pending_ack = PA, - ram_ack_index = RAI }}) -> + fun (SeqId, {Acc, State2 = #state { pending_ack = PA, + ram_ack_index = RAI }}) -> AckEntry = dict:fetch(SeqId, PA), {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, State2 #mqstate { + Fun(AckEntry, State2 #state { pending_ack = dict:erase(SeqId, PA), ram_ack_index = gb_trees:delete_any(SeqId, RAI)})} @@ -1008,18 +832,13 @@ ack(MsgStoreFun, Fun, AckTags, State) -> IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), [ok = MsgStoreFun(MSCState, false, Guids) || {_IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( - orddict:new(), GuidsByStore)), {lists:reverse(AllGuids), - State1 #mqstate { index_state = IndexState1, - persistent_count = PCount1, - ack_out_counter = AckOutCount + length(AckTags) }}. + State1 #state { index_state = IndexState1, + ack_out_counter = AckOutCount + length(AckTags) }}. accumulate_ack_init() -> {[], orddict:new(), []}. -accumulate_ack(_SeqId, #msg_status { msg_on_disk = false, - index_on_disk = false, - guid = Guid }, +accumulate_ack(_SeqId, #msg_status { guid = Guid }, {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}; accumulate_ack(_SeqId, {_IsPersistent, Guid, _MsgProps}, @@ -1027,46 +846,10 @@ accumulate_ack(_SeqId, {_IsPersistent, Guid, _MsgProps}, {PersistentSeqIdsAcc, rabbit_misc:orddict_cons(false, Guid, GuidsByStore), [Guid | AllGuids]}. -find_persistent_count(LensByStore) -> - case orddict:find(true, LensByStore) of - error -> 0; - {ok, Len} -> Len - end. - %%---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- -remove_confirms(GuidSet, State = #mqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - State #mqstate { msgs_on_disk = gb_sets:difference(MOD, GuidSet), - msg_indices_on_disk = gb_sets:difference(MIOD, GuidSet), - unconfirmed = gb_sets:difference(UC, GuidSet) }. - -msgs_confirmed(GuidSet, State) -> - {gb_sets:to_list(GuidSet), remove_confirms(GuidSet, State)}. - -msgs_written_to_disk(QPid, GuidSet) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (State = #mqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - msgs_confirmed(gb_sets:intersection(GuidSet, MIOD), - State #mqstate { - msgs_on_disk = - gb_sets:intersection( - gb_sets:union(MOD, GuidSet), UC) }) - end). - -msg_indices_written_to_disk(QPid, GuidSet) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (State = #mqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - msgs_confirmed(gb_sets:intersection(GuidSet, MOD), - State #mqstate { - msg_indices_on_disk = - gb_sets:intersection( - gb_sets:union(MIOD, GuidSet), UC) }) - end). +remove_confirms(GuidSet, State = #state { unconfirmed = UC }) -> + State #state { unconfirmed = gb_sets:difference(UC, GuidSet) }. + -- cgit v1.2.1 From beceeffef197a1a4a8159565da90f794f972f5c7 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 23 Dec 2010 15:04:26 -0800 Subject: Removed triple-style ack in rabbit_mnesia_queue; documented it correctly in rabbit_variable_queue. --- src/rabbit_mnesia_queue.erl | 34 ++++++++-------------------------- 1 file changed, 8 insertions(+), 26 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index e1bacdb0..26165eca 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -32,10 +32,11 @@ -module(rabbit_mnesia_queue). -export([start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, - publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, - tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, - set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, - idle_timeout/1, handle_pre_hibernate/1, status/1]). + publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, + tx_ack/3, tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, + dropwhile/2, set_ram_duration_target/2, ram_duration/1, + needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, + status/1]). %%---------------------------------------------------------------------------- %% This is Take Three of a simple initial Mnesia implementation of the @@ -425,9 +426,7 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { ack(AckTags, State) -> {Guids, State1} = ack(fun msg_store_remove/3, - fun ({_IsPersistent, Guid, _MsgProps}, State1) -> - remove_confirms(gb_sets:singleton(Guid), State1); - (#msg_status{msg = #basic_message { guid = Guid }}, State1) -> + fun (#msg_status{msg = #basic_message { guid = Guid }}, State1) -> remove_confirms(gb_sets:singleton(Guid), State1) end, AckTags, State), @@ -502,15 +501,7 @@ requeue(AckTags, MsgPropsFun, State) -> fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> {_SeqId, State2} = publish(Msg, MsgPropsFun(MsgProps), true, false, State1), - State2; - ({_IsPersistent, Guid, MsgProps}, State1) -> - #state { msg_store_clients = MSCState } = State1, - {{ok, Msg = #basic_message{}}, MSCState1} = - msg_store_read(MSCState, false, Guid), - State2 = State1 #state { msg_store_clients = MSCState1 }, - {_SeqId, State3} = publish(Msg, MsgPropsFun(MsgProps), - true, true, State2), - State3 + State2 end, AckTags, State), a(State1). @@ -646,11 +637,6 @@ with_immutable_msg_store_state(MSCState, Fun) -> msg_store_client_init(MsgStore, MsgOnDiskFun) -> rabbit_msg_store:client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). -msg_store_read(MSCState, _IsPersistent, Guid) -> - with_msg_store_state( - MSCState, false, - fun (MSCState1) -> rabbit_msg_store:read(Guid, MSCState1) end). - msg_store_remove(MSCState, _IsPersistent, Guids) -> with_immutable_msg_store_state( MSCState, @@ -840,11 +826,7 @@ accumulate_ack_init() -> {[], orddict:new(), []}. accumulate_ack(_SeqId, #msg_status { guid = Guid }, {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> - {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}; -accumulate_ack(_SeqId, {_IsPersistent, Guid, _MsgProps}, - {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> - {PersistentSeqIdsAcc, rabbit_misc:orddict_cons(false, Guid, GuidsByStore), - [Guid | AllGuids]}. + {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}. %%---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) -- cgit v1.2.1 From a9ef2456593e2d3e4323748201f39e24d532736a Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 23 Dec 2010 17:25:24 -0800 Subject: Stripped lots of stuff out; maye have introduced errors. --- src/rabbit_mnesia_queue.erl | 432 ++++++++++++------------------------------ src/rabbit_variable_queue.erl | 4 + 2 files changed, 121 insertions(+), 315 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 26165eca..52785adc 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -73,10 +73,7 @@ { q, next_seq_id, pending_ack, - pending_ack_index, - ram_ack_index, - index_state, - msg_store_clients, + ack_index, on_sync, len, out_counter, @@ -88,7 +85,6 @@ -record(msg_status, { seq_id, - guid, msg, is_delivered, msg_props @@ -98,9 +94,6 @@ -record(sync, { acks, pubs, funs }). --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). - -include("rabbit.hrl"). %%---------------------------------------------------------------------------- @@ -115,21 +108,17 @@ [rabbit_types:basic_message()]}], funs :: [fun (() -> any())] }). --type(state() :: #state { - q :: queue(), - next_seq_id :: seq_id(), - pending_ack :: dict(), - ram_ack_index :: gb_tree(), - index_state :: any(), - msg_store_clients :: 'undefined' | {{any(), binary()}, - {any(), binary()}}, - on_sync :: sync(), - len :: non_neg_integer(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), - unconfirmed :: gb_set(), - ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer() }). +-type(state() :: #state { q :: queue(), + next_seq_id :: seq_id(), + pending_ack :: dict(), + ack_index :: gb_tree(), + on_sync :: sync(), + len :: non_neg_integer(), + out_counter :: non_neg_integer(), + in_counter :: non_neg_integer(), + unconfirmed :: gb_set(), + ack_out_counter :: non_neg_integer(), + ack_in_counter :: non_neg_integer() }). -include("rabbit_backing_queue_spec.hrl"). @@ -157,15 +146,7 @@ %% Public API %%---------------------------------------------------------------------------- -start(DurableQueues) -> - {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), - start_msg_store( - [Ref || Terms <- AllTerms, - begin - Ref = proplists:get_value(persistent_ref, Terms), - Ref =/= undefined - end], - StartFunState). +start(_DurableQueues) -> ok. %%---------------------------------------------------------------------------- %% stop/0 is called to tear down any state/resources. NB: @@ -175,19 +156,7 @@ start(DurableQueues) -> %% -spec(stop/0 :: () -> 'ok'). -stop() -> stop_msg_store(). - -start_msg_store(Refs, StartFunState) -> - ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, - [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), - undefined, {fun (ok) -> finished end, ok}]), - ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, - [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), - Refs, StartFunState]). - -stop_msg_store() -> - ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), - ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). +stop() -> ok. %%---------------------------------------------------------------------------- %% init/3 initializes one backing queue and its state. @@ -196,39 +165,20 @@ stop_msg_store() -> %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) %% -> state()). -init(QueueName, _IsDurable, Recover) -> - init(QueueName, Recover, - fun (_Guids) -> ok end, - fun (_Guids) -> ok end). - -init(QueueName, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> - IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), - init(IndexState, 0, [], - msg_store_client_init(?PERSISTENT_MSG_STORE, MsgOnDiskFun), - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); - -init(QueueName, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> - Terms = rabbit_queue_index:shutdown_terms(QueueName), - {PRef, TRef, Terms1} = - case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of - [] -> {proplists:get_value(persistent_ref, Terms), - proplists:get_value(transient_ref, Terms), - Terms}; - _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} - end, - PersistentClient = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, - PRef, MsgOnDiskFun), - TransientClient = rabbit_msg_store:client_init(?TRANSIENT_MSG_STORE, - TRef, undefined), - {DeltaCount, IndexState} = - rabbit_queue_index:recover( - QueueName, Terms1, - rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), - fun (Guid) -> - rabbit_msg_store:contains(Guid, PersistentClient) - end, - MsgIdxOnDiskFun), - init(IndexState, DeltaCount, Terms1, PersistentClient, TransientClient). +%% Should do quite a bit more upon recovery.... + +init(_QueueName, _IsDurable, _Recover) -> + a(#state { q = queue:new(), + next_seq_id = 0, + pending_ack = dict:new(), + ack_index = gb_trees:empty(), + on_sync = ?BLANK_SYNC, + len = 0, + out_counter = 0, + in_counter = 0, + unconfirmed = gb_sets:new(), + ack_out_counter = 0, + ack_in_counter = 0 }). %%---------------------------------------------------------------------------- %% terminate/1 is called on queue shutdown when the queue isn't being @@ -236,22 +186,7 @@ init(QueueName, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> %% -spec(terminate/1 :: (state()) -> state()). -terminate(State) -> - State1 = #state { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(true, tx_commit_index(State)), - PRef = case MSCStateP of - undefined -> undefined; - _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), - rabbit_msg_store:client_ref(MSCStateP) - end, - ok = rabbit_msg_store:client_terminate(MSCStateT), - TRef = rabbit_msg_store:client_ref(MSCStateT), - Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}], - a(State1 #state { index_state = rabbit_queue_index:terminate( - Terms, IndexState), - msg_store_clients = undefined }). +terminate(State) -> a(remove_pending_ack(tx_commit_index(State))). %%---------------------------------------------------------------------------- %% delete_and_terminate/1 is called when the queue is terminating and @@ -265,21 +200,8 @@ terminate(State) -> %% needs to delete everything that's been delivered and not ack'd. delete_and_terminate(State) -> - %% TODO: there is no need to interact with q at all - which we do - %% as part of 'purge' and 'remove_pending_ack', other than - %% deleting it. {_PurgeCount, State1} = purge(State), - State2 = #state { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(false, State1), - IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), - case MSCStateP of - undefined -> ok; - _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) - end, - rabbit_msg_store:client_delete_and_terminate(MSCStateT), - a(State2 #state { index_state = IndexState1, - msg_store_clients = undefined }). + a(remove_pending_ack(State1)). %%---------------------------------------------------------------------------- %% purge/1 removes all messages in the queue, but not messages which @@ -287,24 +209,8 @@ delete_and_terminate(State) -> %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(State = #state { q = Q, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len }) -> - %% TODO: when there are no pending acks, which is a common case, - %% we could simply wipe the q instead of issuing delivers and - %% acks for all the messages. - {LensByStore, IndexState1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q, - orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #state { index_state = IndexState2, - msg_store_clients = MSCState1 }} = - {LensByStore, - State #state { q = queue:new(), index_state = IndexState1 }}, - {_LensByStore2, IndexState3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, queue:new(), - LensByStore1, IndexState2, MSCState1), - {Len, a(State1 #state { index_state = IndexState3, len = 0 })}. +purge(State = #state { len = Len }) -> + {Len, a(State #state { q = queue:new(), len = 0 })}. %%---------------------------------------------------------------------------- %% publish/3 publishes a message. @@ -371,9 +277,8 @@ dropwhile1(Pred, State) -> dropwhile1(Pred, State2); false -> %% message needs to go back into Q - {MsgStatus1, State2 = #state { q = Q }} = - {MsgStatus, State1}, - {ok, State2 #state {q = queue:in_r(MsgStatus1, Q) }} + #state { q = Q } = State1, + {ok, State1 #state {q = queue:in_r(MsgStatus, Q) }} end end, State). @@ -384,33 +289,30 @@ dropwhile1(Pred, State) -> fetch(AckRequired, State) -> internal_queue_out( - fun(MsgStatus, State1) -> - %% it's possible that the message wasn't read from disk - %% at this point, so read it in. - internal_fetch(AckRequired, MsgStatus, State1) + fun(MsgStatus, State1) -> internal_fetch(AckRequired, MsgStatus, State1) end, State). internal_queue_out(Fun, State = #state { q = Q }) -> case queue:out(Q) of - {empty, _Q} -> a(State), - {empty, State}; - {{value, MsgStatus}, Qa} -> - Fun(MsgStatus, State #state { q = Qa }) + {empty, _Q} -> {empty, a(State)}; + {{value, MsgStatus}, Qa} -> Fun(MsgStatus, State #state { q = Qa }) end. -internal_fetch(AckRequired, MsgStatus = #msg_status { - seq_id = SeqId, - msg = Msg, - is_delivered = IsDelivered }, - State = #state {out_counter = OutCount, - len = Len }) -> - {AckTag, State1} = case AckRequired of - true -> StateN = record_pending_ack( - MsgStatus #msg_status { - is_delivered = true }, State), - {SeqId, StateN}; - false -> {blank_ack, State} - end, +internal_fetch(AckRequired, + MsgStatus = #msg_status { seq_id = SeqId, + msg = Msg, + is_delivered = IsDelivered }, + State = #state {out_counter = OutCount, len = Len }) -> + {AckTag, State1} = + case AckRequired of + true -> + StateN = + record_pending_ack( + MsgStatus #msg_status { is_delivered = true }, + State), + {SeqId, StateN}; + false -> {blank_ack, State} + end, Len1 = Len - 1, {{Msg, IsDelivered, AckTag, Len1}, a(State1 #state { out_counter = OutCount + 1, @@ -425,8 +327,8 @@ internal_fetch(AckRequired, MsgStatus = #msg_status { ack(AckTags, State) -> {Guids, State1} = - ack(fun msg_store_remove/3, - fun (#msg_status{msg = #basic_message { guid = Guid }}, State1) -> + ack(fun (#msg_status{msg = #basic_message { guid = Guid }}, + State1) -> remove_confirms(gb_sets:singleton(Guid), State1) end, AckTags, State), @@ -463,10 +365,9 @@ tx_ack(Txn, AckTags, State) -> %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). -tx_rollback(Txn, State = #state { msg_store_clients = MSCState }) -> +tx_rollback(Txn, State) -> #tx { pending_acks = AckTags } = lookup_tx(Txn), erase_tx(Txn), - ok = msg_store_remove(MSCState, true, []), {lists:append(AckTags), a(State)}. %%---------------------------------------------------------------------------- @@ -485,8 +386,8 @@ tx_commit(Txn, Fun, MsgPropsFun, State) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), - {AckTags1, - a(tx_commit_post_msg_store(false, Pubs, AckTags1, Fun, MsgPropsFun, State))}. + {AckTags1, a(tx_commit_post_msg_store(Pubs, AckTags1, Fun, MsgPropsFun, + State))}. %%---------------------------------------------------------------------------- %% requeue/3 reinserts messages into the queue which have already been @@ -497,10 +398,10 @@ tx_commit(Txn, Fun, MsgPropsFun, State) -> requeue(AckTags, MsgPropsFun, State) -> {_Guids, State1} = - ack(fun msg_store_release/3, - fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> - {_SeqId, State2} = publish(Msg, MsgPropsFun(MsgProps), - true, false, State1), + ack(fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> + {_SeqId, State2} = + publish( + Msg, MsgPropsFun(MsgProps), true, false, State1), State2 end, AckTags, State), @@ -576,8 +477,7 @@ idle_timeout(State) -> a(tx_commit_index(State)). %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -handle_pre_hibernate(State = #state { index_state = IndexState }) -> - State #state { index_state = rabbit_queue_index:flush(IndexState) }. +handle_pre_hibernate(State) -> State. %%---------------------------------------------------------------------------- %% status/1 exists for debugging purposes, to be able to expose state @@ -585,18 +485,17 @@ handle_pre_hibernate(State = #state { index_state = IndexState }) -> %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(#state { - q = Q, - len = Len, - pending_ack = PA, - ram_ack_index = RAI, - on_sync = #sync { funs = From }, - next_seq_id = NextSeqId }) -> +status(#state { q = Q, + len = Len, + pending_ack = PA, + ack_index = AI, + on_sync = #sync { funs = From }, + next_seq_id = NextSeqId }) -> [{q, queue:len(Q)}, {len, Len}, {pending_acks, dict:size(PA)}, {outstanding_txns, length(From)}, - {ram_ack_count, gb_trees:size(RAI)}, + {ack_count, gb_trees:size(AI)}, {next_seq_id, NextSeqId}]. %%---------------------------------------------------------------------------- @@ -616,40 +515,13 @@ gb_sets_maybe_insert(false, _Val, Set) -> Set; %% when requeueing, we re-add a guid to the unconfirmed set gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). -msg_status(SeqId, Msg = #basic_message { guid = Guid }, MsgProps) -> - #msg_status { seq_id = SeqId, guid = Guid, msg = Msg, is_delivered = false, +msg_status(SeqId, Msg, MsgProps) -> + #msg_status { seq_id = SeqId, msg = Msg, is_delivered = false, msg_props = MsgProps }. -with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> - {Result, MSCStateP1} = Fun(MSCStateP), - {Result, {MSCStateP1, MSCStateT}}; -with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> - {Result, MSCStateT1} = Fun(MSCStateT), - {Result, {MSCStateP, MSCStateT1}}. - -with_immutable_msg_store_state(MSCState, Fun) -> - {Res, MSCState} = with_msg_store_state(MSCState, false, - fun (MSCState1) -> - {Fun(MSCState1), MSCState1} - end), - Res. - -msg_store_client_init(MsgStore, MsgOnDiskFun) -> - rabbit_msg_store:client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). - -msg_store_remove(MSCState, _IsPersistent, Guids) -> - with_immutable_msg_store_state( - MSCState, - fun (MCSState1) -> rabbit_msg_store:remove(Guids, MCSState1) end). - -msg_store_release(MSCState, _IsPersistent, Guids) -> - with_immutable_msg_store_state( - MSCState, - fun (MCSState1) -> rabbit_msg_store:release(Guids, MCSState1) end). - lookup_tx(Txn) -> case get({txn, Txn}) of - undefined -> #tx { pending_messages = [], - pending_acks = [] }; + undefined -> + #tx { pending_messages = [], pending_acks = [] }; V -> V end. @@ -661,85 +533,34 @@ erase_tx(Txn) -> erase({txn, Txn}). %% Internal major helpers for Public API %%---------------------------------------------------------------------------- -init(IndexState, DeltaCount, _Terms, PersistentClient, TransientClient) -> - {_LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), - - DeltaCount = 0, % Sure hope so! - State = #state { - q = queue:new(), - next_seq_id = NextSeqId, - pending_ack = dict:new(), - ram_ack_index = gb_trees:empty(), - index_state = IndexState1, - msg_store_clients = {PersistentClient, TransientClient}, - on_sync = ?BLANK_SYNC, - len = DeltaCount, - out_counter = 0, - in_counter = 0, - unconfirmed = gb_sets:new(), - ack_out_counter = 0, - ack_in_counter = 0 }, - a(State). - -tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, - State = #state { - on_sync = OnSync = #sync { - acks = SAcks, - pubs = SPubs, - funs = SFuns } }) -> - case HasPersistentPubs of - true -> State #state { - on_sync = #sync { - acks = [AckTags | SAcks], - pubs = [{MsgPropsFun, Pubs} | SPubs], - funs = [Fun | SFuns] }}; - false -> State1 = tx_commit_index( - State #state { - on_sync = #sync { - acks = [AckTags], - pubs = [{MsgPropsFun, Pubs}], - funs = [Fun] } }), - State1 #state { on_sync = OnSync } - end. +tx_commit_post_msg_store(Pubs, AckTags, Fun, MsgPropsFun, + State = #state { on_sync = OnSync }) -> + State1 = tx_commit_index( + State #state { on_sync = #sync { acks = [AckTags], + pubs = [{MsgPropsFun, Pubs}], + funs = [Fun] } }), + State1 #state { on_sync = OnSync }. tx_commit_index(State = #state { on_sync = ?BLANK_SYNC }) -> State; -tx_commit_index(State = #state { on_sync = #sync { - acks = SAcks, - pubs = SPubs, - funs = SFuns } }) -> +tx_commit_index(State = #state { on_sync = #sync { acks = SAcks, + pubs = SPubs, + funs = SFuns } }) -> Acks = lists:append(SAcks), {_Guids, NewState} = ack(Acks, State), - Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), - {Msg, MsgProps} <- lists:reverse(PubsN)], - {SeqIds, State1 = #state { index_state = IndexState }} = + Pubs = [{Msg, Fun(MsgProps)} || + {Fun, PubsN} <- lists:reverse(SPubs), + {Msg, MsgProps} <- lists:reverse(PubsN)], + {_SeqIds, State1} = lists:foldl( fun ({Msg, MsgProps}, {SeqIdsAcc, State2}) -> {_SeqId, State3} = publish(Msg, MsgProps, false, false, State2), {SeqIdsAcc, State3} - end, {[], NewState}, Pubs), - IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), + end, + {[], NewState}, + Pubs), [ Fun() || Fun <- lists:reverse(SFuns) ], - State1 #state { index_state = IndexState1, on_sync = ?BLANK_SYNC }. - -remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> - {GuidsByStore, Delivers, Acks} = - Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), - ok = orddict:fold(fun (_IsPersistent, Guids, ok) -> - msg_store_remove(MSCState, false, Guids) - end, ok, GuidsByStore), - {sum_guids_by_store_to_len(LensByStore, GuidsByStore), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -remove_queue_entries1(_MsgStatus, {GuidsByStore, Delivers, Acks}) -> - {GuidsByStore, Delivers, Acks}. - -sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> - orddict:fold( - fun (_IsPersistent, Guids, LensByStore1) -> - orddict:update_counter(false, length(Guids), LensByStore1) - end, LensByStore, GuidsByStore). + State1 #state { on_sync = ?BLANK_SYNC }. %%---------------------------------------------------------------------------- %% Internal gubbins for publishing @@ -766,65 +587,46 @@ publish(Msg = #basic_message { guid = Guid }, %% Internal gubbins for acks %%---------------------------------------------------------------------------- -record_pending_ack(#msg_status { seq_id = SeqId, - guid = Guid } = MsgStatus, +record_pending_ack(MsgStatus = #msg_status { seq_id = SeqId, + msg = #basic_message { + guid = Guid }}, State = #state { pending_ack = PA, - ram_ack_index = RAI, + ack_index = AI, ack_in_counter = AckInCount}) -> - {AckEntry, RAI1} = {MsgStatus, gb_trees:insert(SeqId, Guid, RAI)}, + {AckEntry, AI1} = {MsgStatus, gb_trees:insert(SeqId, Guid, AI)}, PA1 = dict:store(SeqId, AckEntry, PA), State #state { pending_ack = PA1, - ram_ack_index = RAI1, + ack_index = AI1, ack_in_counter = AckInCount + 1}. -remove_pending_ack(KeepPersistent, - State = #state { pending_ack = PA, - index_state = IndexState, - msg_store_clients = MSCState }) -> - {PersistentSeqIds, GuidsByStore, _AllGuids} = - dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - State1 = State #state { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, - case KeepPersistent of - true -> case orddict:find(false, GuidsByStore) of - error -> State1; - {ok, Guids} -> ok = msg_store_remove(MSCState, false, - Guids), - State1 - end; - false -> IndexState1 = - rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = msg_store_remove(MSCState, false, Guids) - || {_IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - State1 #state { index_state = IndexState1 } - end. +remove_pending_ack(State = #state { pending_ack = PA }) -> + _ = dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), + a(State #state { pending_ack = dict:new(), + ack_index = gb_trees:empty() }). -ack(_MsgStoreFun, _Fun, [], State) -> {[], State}; -ack(MsgStoreFun, Fun, AckTags, State) -> - {{PersistentSeqIds, GuidsByStore, AllGuids}, - State1 = #state { index_state = IndexState, - msg_store_clients = MSCState, - ack_out_counter = AckOutCount }} = +ack(_Fun, [], State) -> {[], State}; +ack(Fun, AckTags, State) -> + {{_PersistentSeqIds, _GuidsByStore, AllGuids}, + State1 = #state { ack_out_counter = AckOutCount }} = lists:foldl( - fun (SeqId, {Acc, State2 = #state { pending_ack = PA, - ram_ack_index = RAI }}) -> + fun (SeqId, + {Acc, + State2 = #state { pending_ack = PA, ack_index = AI }}) -> AckEntry = dict:fetch(SeqId, PA), {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, State2 #state { - pending_ack = dict:erase(SeqId, PA), - ram_ack_index = - gb_trees:delete_any(SeqId, RAI)})} - end, {accumulate_ack_init(), State}, AckTags), - IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = MsgStoreFun(MSCState, false, Guids) - || {_IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + Fun(AckEntry, + State2 #state { + pending_ack = dict:erase(SeqId, PA), + ack_index = gb_trees:delete_any(SeqId, AI)})} + end, + {accumulate_ack_init(), State}, + AckTags), {lists:reverse(AllGuids), - State1 #state { index_state = IndexState1, - ack_out_counter = AckOutCount + length(AckTags) }}. + State1 #state { ack_out_counter = AckOutCount + length(AckTags) }}. accumulate_ack_init() -> {[], orddict:new(), []}. -accumulate_ack(_SeqId, #msg_status { guid = Guid }, +accumulate_ack(_SeqId, #msg_status { msg = #basic_message { guid = Guid }}, {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}. diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index e3e76970..9c0d1c7a 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -170,6 +170,10 @@ %% the latter) are both cheap and do require any scanning through qi %% segments. %% +%% I believe the following is wrong. Pending acks may be message +%% statuses, not messages themselves. If they are triples, the first +%% element is a boolean IsPersistent. +%% %% Pending acks are recorded in memory either as the tuple {SeqId, %% Guid, MsgProps} (tuple-form) or as the message itself (message- %% form). Acks for persistent messages are always stored in the tuple- -- cgit v1.2.1 From a07ed9fd2c09b4825816540018eb9fa2cbcb1c3d Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 10 Jan 2011 12:19:03 +0000 Subject: sync queue_index when variable_queue has outstanding confirms and is idle --- src/rabbit_queue_index.erl | 10 +++++++++- src/rabbit_variable_queue.erl | 32 +++++++++++++++++++++----------- 2 files changed, 30 insertions(+), 12 deletions(-) diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 76c0a4ef..3ebf200a 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -33,7 +33,7 @@ -export([init/2, shutdown_terms/1, recover/5, terminate/2, delete_and_terminate/1, - publish/5, deliver/2, ack/2, sync/2, flush/1, read/3, + publish/5, deliver/2, ack/2, sync/1, sync/2, flush/1, read/3, next_segment_boundary/1, bounds/1, recover/1]). -export([add_queue_ttl/0]). @@ -297,6 +297,14 @@ deliver(SeqIds, State) -> ack(SeqIds, State) -> deliver_or_ack(ack, SeqIds, State). +%% This is only called when there are outstanding confirms and the +%% queue is idle. +sync(State = #qistate { unsynced_guids = [] }) -> + State; +sync(State = #qistate { journal_handle = JournalHdl }) -> + ok = file_handle_cache:sync(JournalHdl), + notify_sync(State). + sync([], State) -> State; sync(_SeqIds, State = #qistate { journal_handle = undefined }) -> diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index c30be37c..766db72c 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -809,17 +809,22 @@ ram_duration(State = #vqstate { ram_msg_count_prev = RamMsgCount, ram_ack_count_prev = RamAckCount }}. -needs_idle_timeout(State = #vqstate { on_sync = ?BLANK_SYNC }) -> - {Res, _State} = reduce_memory_use(fun (_Quota, State1) -> {0, State1} end, - fun (_Quota, State1) -> State1 end, - fun (State1) -> State1 end, - fun (_Quota, State1) -> {0, State1} end, - State), - Res; -needs_idle_timeout(_State) -> - true. - -idle_timeout(State) -> a(reduce_memory_use(tx_commit_index(State))). +needs_idle_timeout(State = #vqstate { on_sync = OS, unconfirmed = UC }) -> + case {OS, gb_sets:size(UC)} of + {?BLANK_SYNC, 0} -> + {Res, _State} = reduce_memory_use( + fun (_Quota, State1) -> {0, State1} end, + fun (_Quota, State1) -> State1 end, + fun (State1) -> State1 end, + fun (_Quota, State1) -> {0, State1} end, + State), + Res; + _ -> + true + end. + +idle_timeout(State) -> + a(reduce_memory_use(confirm_commit_index(tx_commit_index(State)))). handle_pre_hibernate(State = #vqstate { index_state = IndexState }) -> State #vqstate { index_state = rabbit_queue_index:flush(IndexState) }. @@ -1386,6 +1391,11 @@ find_persistent_count(LensByStore) -> %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- +confirm_commit_index(State = #vqstate { unconfirmed = [] }) -> + State; +confirm_commit_index(State = #vqstate { index_state = IS }) -> + State #vqstate { index_state = rabbit_queue_index:sync(IS) }. + remove_confirms(GuidSet, State = #vqstate { msgs_on_disk = MOD, msg_indices_on_disk = MIOD, unconfirmed = UC }) -> -- cgit v1.2.1 From 9263488208bfddda34508ae4bdc708f488ac60e6 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 10 Jan 2011 18:23:48 +0000 Subject: Avoid images and forms in text retrieved from website --- INSTALL.in | 7 +++---- Makefile | 10 +++++++--- README.in | 7 +++---- 3 files changed, 13 insertions(+), 11 deletions(-) diff --git a/INSTALL.in b/INSTALL.in index d1fa81df..d2652eaa 100644 --- a/INSTALL.in +++ b/INSTALL.in @@ -1,10 +1,9 @@ -Please see http://www.rabbitmq.com/install.html for install +Please see http://www.rabbitmq.com/install.html for install instructions. -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to +For your convenience, a text copy of these instructions is available +below. Please be aware that the instructions here may not be as up to date as those at the above URL. =========================================================================== - diff --git a/Makefile b/Makefile index 00bfd629..966529a0 100644 --- a/Makefile +++ b/Makefile @@ -209,10 +209,14 @@ srcdist: distclean mkdir -p $(TARGET_SRC_DIR)/codegen cp -r ebin src include LICENSE LICENSE-MPL-RabbitMQ $(TARGET_SRC_DIR) cp INSTALL.in $(TARGET_SRC_DIR)/INSTALL - elinks -dump -no-references -no-numbering $(WEB_URL)install.html \ - >> $(TARGET_SRC_DIR)/INSTALL + elinks -source $(WEB_URL)install.html \ + | xmlstarlet ed -N "x=http://www.w3.org/1999/xhtml" -d "//x:img" -d "//x:form" \ + | elinks -dump -no-references -no-numbering \ + >> $(TARGET_SRC_DIR)/INSTALL cp README.in $(TARGET_SRC_DIR)/README - elinks -dump -no-references -no-numbering $(WEB_URL)build-server.html \ + elinks -source $(WEB_URL)build-server.html \ + | xmlstarlet ed -N "x=http://www.w3.org/1999/xhtml" -d "//x:img" -d "//x:form" \ + | elinks -dump -no-references -no-numbering \ >> $(TARGET_SRC_DIR)/README sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save diff --git a/README.in b/README.in index 0e70d0e7..58d3709f 100644 --- a/README.in +++ b/README.in @@ -1,10 +1,9 @@ -Please see http://www.rabbitmq.com/build-server.html for build +Please see http://www.rabbitmq.com/build-server.html for build instructions. -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to +For your convenience, a text copy of these instructions is available +below. Please be aware that the instructions here may not be as up to date as those at the above URL. =========================================================================== - -- cgit v1.2.1 From 64a2eefd1b2bbed29ede16ed2d74b46686b03f86 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 11 Jan 2011 18:05:25 -0800 Subject: Many changes, system is turning over again. --- src/rabbit_mnesia_queue.erl | 529 ++++++++++++++++++++++++++++---------------- 1 file changed, 336 insertions(+), 193 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 52785adc..924c5215 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -31,21 +31,23 @@ -module(rabbit_mnesia_queue). --export([start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, - publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, - tx_ack/3, tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, - dropwhile/2, set_ram_duration_target/2, ram_duration/1, - needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, - status/1]). +-export([start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, + purge/1, publish/3, publish_delivered/4, fetch/2, ack/2, + tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, requeue/3, len/1, + is_empty/1, dropwhile/2, set_ram_duration_target/2, ram_duration/1, + needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, + status/1]). %%---------------------------------------------------------------------------- %% This is Take Three of a simple initial Mnesia implementation of the %% rabbit_backing_queue behavior. This version was created by starting %% with rabbit_variable_queue.erl, and removing everything unneeded. +%% +%% This will eventually be structured as a plug-in instead of an extra +%% module in the middle of the server tree.... %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- - %% In the queue we keep track of both messages that are pending %% delivery and messages that are pending acks. This ensures that %% purging (deleting the former) and deletion (deleting the former and @@ -67,28 +69,34 @@ %% %%---------------------------------------------------------------------------- +%% BUG: I've temporarily ripped out most of the calls to Mnesia while +%% debugging problems with the Mnesia documentation. (Ask me sometimes +%% over drinks to explain how bad it is.) I've figuerd things out now +%% and will soon put them back in. + -behaviour(rabbit_backing_queue). -record(state, - { q, - next_seq_id, - pending_ack, - ack_index, - on_sync, - len, - out_counter, - in_counter, - unconfirmed, - ack_out_counter, - ack_in_counter - }). + { mnesiaNameAtom, + q, + next_seq_id, + pending_ack, + ack_index, + on_sync, + len, + out_counter, + in_counter, + unconfirmed, + ack_out_counter, + ack_in_counter + }). -record(msg_status, - { seq_id, - msg, - is_delivered, - msg_props - }). + { seq_id, + msg, + is_delivered, + msg_props + }). -record(tx, { pending_messages, pending_acks }). @@ -98,35 +106,38 @@ %%---------------------------------------------------------------------------- --ifdef(use_specs). +%% BUG: Restore -ifdef, -endif. + +%% -ifdef(use_specs). -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). -type(sync() :: #sync { acks :: [[seq_id()]], - pubs :: [{message_properties_transformer(), - [rabbit_types:basic_message()]}], - funs :: [fun (() -> any())] }). - --type(state() :: #state { q :: queue(), - next_seq_id :: seq_id(), - pending_ack :: dict(), - ack_index :: gb_tree(), - on_sync :: sync(), - len :: non_neg_integer(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), - unconfirmed :: gb_set(), - ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer() }). + pubs :: [{message_properties_transformer(), + [rabbit_types:basic_message()]}], + funs :: [fun (() -> any())] }). + +-type(state() :: #state { mnesiaNameAtom :: atom(), + q :: queue(), + next_seq_id :: seq_id(), + pending_ack :: dict(), + ack_index :: gb_tree(), + on_sync :: sync(), + len :: non_neg_integer(), + out_counter :: non_neg_integer(), + in_counter :: non_neg_integer(), + unconfirmed :: gb_set(), + ack_out_counter :: non_neg_integer(), + ack_in_counter :: non_neg_integer() }). -include("rabbit_backing_queue_spec.hrl"). --endif. +%% -endif. -define(BLANK_SYNC, #sync { acks = [], - pubs = [], - funs = [] }). + pubs = [], + funs = [] }). %%---------------------------------------------------------------------------- %% Public API @@ -165,20 +176,33 @@ stop() -> ok. %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) %% -> state()). -%% Should do quite a bit more upon recovery.... - -init(_QueueName, _IsDurable, _Recover) -> - a(#state { q = queue:new(), - next_seq_id = 0, - pending_ack = dict:new(), - ack_index = gb_trees:empty(), - on_sync = ?BLANK_SYNC, - len = 0, - out_counter = 0, - in_counter = 0, - unconfirmed = gb_sets:new(), - ack_out_counter = 0, - ack_in_counter = 0 }). +%% BUG: Should do quite a bit more upon recovery.... + +%% BUG: Each queue name becomes an atom (to name a table), and atoms +%% are never GC'd + +%% BUG: Need to provide back-pressure when queue is filling up. + +init(QueueName, _IsDurable, _Recover) -> + QueueNameAtom = queueNameAtom(QueueName), + _ = (catch mnesia:delete_table(QueueNameAtom)), + {atomic, ok} = + (catch mnesia:create_table( + QueueNameAtom, + [{record_name, state}, + {attributes, record_info(fields, state)}])), + persist(#state { mnesiaNameAtom = QueueNameAtom, + q = queue:new(), + next_seq_id = 0, + pending_ack = dict:new(), + ack_index = gb_trees:empty(), + on_sync = ?BLANK_SYNC, + len = 0, + out_counter = 0, + in_counter = 0, + unconfirmed = gb_sets:new(), + ack_out_counter = 0, + ack_in_counter = 0 }). %%---------------------------------------------------------------------------- %% terminate/1 is called on queue shutdown when the queue isn't being @@ -186,7 +210,7 @@ init(_QueueName, _IsDurable, _Recover) -> %% -spec(terminate/1 :: (state()) -> state()). -terminate(State) -> a(remove_pending_ack(tx_commit_index(State))). +terminate(State) -> persist(remove_pending_ack(tx_commit_index(State))). %%---------------------------------------------------------------------------- %% delete_and_terminate/1 is called when the queue is terminating and @@ -201,7 +225,7 @@ terminate(State) -> a(remove_pending_ack(tx_commit_index(State))). delete_and_terminate(State) -> {_PurgeCount, State1} = purge(State), - a(remove_pending_ack(State1)). + persist(remove_pending_ack(State1)). %%---------------------------------------------------------------------------- %% purge/1 removes all messages in the queue, but not messages which @@ -210,7 +234,7 @@ delete_and_terminate(State) -> %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). purge(State = #state { len = Len }) -> - {Len, a(State #state { q = queue:new(), len = 0 })}. + {Len, persist(State #state { q = queue:new(), len = 0 })}. %%---------------------------------------------------------------------------- %% publish/3 publishes a message. @@ -222,8 +246,8 @@ purge(State = #state { len = Len }) -> %% -> state()). publish(Msg, MsgProps, State) -> - {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), - a(State1). + {_SeqId, State1} = publish(Msg, MsgProps, false, State), + persist(State1). %%---------------------------------------------------------------------------- %% publish_delivered/4 is called for messages which have already been @@ -238,23 +262,24 @@ publish(Msg, MsgProps, State) -> %% -> {ack(), state()}). publish_delivered(false, _Msg, _MsgProps, State = #state { len = 0 }) -> - {blank_ack, a(State)}; -publish_delivered(true, Msg = #basic_message { guid = Guid }, - MsgProps = #message_properties { - needs_confirming = NeedsConfirming }, - State = #state { len = 0, - next_seq_id = SeqId, - out_counter = OutCount, - in_counter = InCount, - unconfirmed = Unconfirmed }) -> - MsgStatus = (msg_status(SeqId, Msg, MsgProps)) - #msg_status { is_delivered = true }, + {blank_ack, persist(State)}; +publish_delivered(true, + Msg = #basic_message { guid = Guid }, + MsgProps = #message_properties { + needs_confirming = NeedsConfirming }, + State = #state { len = 0, + next_seq_id = SeqId, + out_counter = OutCount, + in_counter = InCount, + unconfirmed = Unconfirmed }) -> + MsgStatus = + (msg_status(SeqId, Msg, MsgProps)) #msg_status { is_delivered = true }, State1 = record_pending_ack(m(MsgStatus), State), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, a(State1 #state { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, - in_counter = InCount + 1, - unconfirmed = Unconfirmed1 })}. + {SeqId, persist(State1 #state { next_seq_id = SeqId + 1, + out_counter = OutCount + 1, + in_counter = InCount + 1, + unconfirmed = Unconfirmed1 })}. %%---------------------------------------------------------------------------- %% dropwhile/2 drops messages from the head of the queue while the @@ -266,57 +291,70 @@ publish_delivered(true, Msg = #basic_message { guid = Guid }, dropwhile(Pred, State) -> {_OkOrEmpty, State1} = dropwhile1(Pred, State), - State1. + persist(State1). + +-spec(dropwhile1/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), state()) + -> {atom(), state()}). dropwhile1(Pred, State) -> internal_queue_out( fun(MsgStatus = #msg_status { msg_props = MsgProps }, State1) -> - case Pred(MsgProps) of - true -> - {_, State2} = internal_fetch(false, MsgStatus, State1), - dropwhile1(Pred, State2); - false -> - %% message needs to go back into Q - #state { q = Q } = State1, - {ok, State1 #state {q = queue:in_r(MsgStatus, Q) }} - end - end, State). + case Pred(MsgProps) of + true -> + {_, State2} = internal_fetch(false, MsgStatus, State1), + dropwhile1(Pred, State2); + false -> + %% message needs to go back into Q + #state { q = Q } = State1, + {ok, State1 #state {q = queue:in_r(MsgStatus, Q) }} + end + end, + State). %%---------------------------------------------------------------------------- %% fetch/2 produces the next message. -%% -spec(fetch/2 :: (ack_required(), state()) -> {fetch_result(), state()}). +%% -spec(fetch/2 :: (ack_required(), state()) -> +%% {ok | fetch_result(), state()}). fetch(AckRequired, State) -> internal_queue_out( - fun(MsgStatus, State1) -> internal_fetch(AckRequired, MsgStatus, State1) - end, State). + fun(MsgStatus, State1) -> + internal_fetch(AckRequired, MsgStatus, State1) + end, + persist(State)). + +-spec internal_queue_out(fun((#msg_status{}, state()) -> T), state()) -> + {empty, state()} | T. internal_queue_out(Fun, State = #state { q = Q }) -> case queue:out(Q) of - {empty, _Q} -> {empty, a(State)}; - {{value, MsgStatus}, Qa} -> Fun(MsgStatus, State #state { q = Qa }) + {empty, _Q} -> {empty, a(State)}; + {{value, MsgStatus}, Qa} -> Fun(MsgStatus, State #state { q = Qa }) end. +-spec internal_fetch/3 :: (ack_required(), #msg_status{}, state()) -> + {fetch_result(), state()}. + internal_fetch(AckRequired, - MsgStatus = #msg_status { seq_id = SeqId, - msg = Msg, - is_delivered = IsDelivered }, - State = #state {out_counter = OutCount, len = Len }) -> + MsgStatus = #msg_status { seq_id = SeqId, + msg = Msg, + is_delivered = IsDelivered }, + State = #state {out_counter = OutCount, len = Len }) -> {AckTag, State1} = - case AckRequired of - true -> - StateN = - record_pending_ack( - MsgStatus #msg_status { is_delivered = true }, - State), - {SeqId, StateN}; - false -> {blank_ack, State} - end, + case AckRequired of + true -> + StateN = + record_pending_ack( + MsgStatus #msg_status { is_delivered = true }, + State), + {SeqId, StateN}; + false -> {blank_ack, State} + end, Len1 = Len - 1, {{Msg, IsDelivered, AckTag, Len1}, - a(State1 #state { out_counter = OutCount + 1, - len = Len1 })}. + a(State1 #state { out_counter = OutCount + 1, len = Len1 })}. %%---------------------------------------------------------------------------- %% ack/2 acknowledges messages. Acktags supplied are for messages @@ -327,12 +365,12 @@ internal_fetch(AckRequired, ack(AckTags, State) -> {Guids, State1} = - ack(fun (#msg_status{msg = #basic_message { guid = Guid }}, - State1) -> - remove_confirms(gb_sets:singleton(Guid), State1) - end, - AckTags, State), - {Guids, a(State1)}. + ack(fun (#msg_status { msg = #basic_message { guid = Guid } }, + State1) -> + remove_confirms(gb_sets:singleton(Guid), State1) + end, + AckTags, State), + {Guids, persist(State1)}. %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. @@ -347,7 +385,7 @@ ack(AckTags, State) -> tx_publish(Txn, Msg, MsgProps, State) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), - a(State). + persist(State). %%---------------------------------------------------------------------------- %% tx_ack/3 acks, but in the context of a transaction. @@ -357,7 +395,7 @@ tx_publish(Txn, Msg, MsgProps, State) -> tx_ack(Txn, AckTags, State) -> Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), - State. + persist(State). %%---------------------------------------------------------------------------- %% tx_rollback/2 undoes anything which has been done in the context of @@ -368,7 +406,7 @@ tx_ack(Txn, AckTags, State) -> tx_rollback(Txn, State) -> #tx { pending_acks = AckTags } = lookup_tx(Txn), erase_tx(Txn), - {lists:append(AckTags), a(State)}. + {lists:append(AckTags), persist(State)}. %%---------------------------------------------------------------------------- %% tx_commit/4 commits a transaction. The Fun passed in must be called @@ -386,8 +424,9 @@ tx_commit(Txn, Fun, MsgPropsFun, State) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), - {AckTags1, a(tx_commit_post_msg_store(Pubs, AckTags1, Fun, MsgPropsFun, - State))}. + {AckTags1, + persist( + tx_commit_post_msg_store(Pubs, AckTags1, Fun, MsgPropsFun, State))}. %%---------------------------------------------------------------------------- %% requeue/3 reinserts messages into the queue which have already been @@ -398,21 +437,20 @@ tx_commit(Txn, Fun, MsgPropsFun, State) -> requeue(AckTags, MsgPropsFun, State) -> {_Guids, State1} = - ack(fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> - {_SeqId, State2} = - publish( - Msg, MsgPropsFun(MsgProps), true, false, State1), - State2 - end, - AckTags, State), - a(State1). + ack(fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> + {_SeqId, State2} = + publish(Msg, MsgPropsFun(MsgProps), true, State1), + State2 + end, + AckTags, State), + persist(State1). %%---------------------------------------------------------------------------- %% len/1 returns the queue length. %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(#state { len = Len }) -> Len. +len(State = #state { len = Len }) -> _State = persist(State), Len. %%---------------------------------------------------------------------------- %% is_empty/1 returns 'true' if the queue is empty, and 'false' @@ -438,7 +476,7 @@ is_empty(State) -> 0 == len(State). %% (('undefined' | 'infinity' | number()), state()) %% -> state()). -set_ram_duration_target(_DurationTarget, State) -> State. +set_ram_duration_target(_DurationTarget, State) -> persist(State). %%---------------------------------------------------------------------------- %% ram_duration/1 optionally recalculates the duration internally @@ -448,7 +486,7 @@ set_ram_duration_target(_DurationTarget, State) -> State. %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). -ram_duration(State) -> {0, State}. +ram_duration(State) -> {0, persist(State)}. %%---------------------------------------------------------------------------- %% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be @@ -457,10 +495,9 @@ ram_duration(State) -> {0, State}. %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -needs_idle_timeout(_State = #state { on_sync = ?BLANK_SYNC }) -> - false; -needs_idle_timeout(_State) -> - true. +needs_idle_timeout(State = #state { on_sync = ?BLANK_SYNC }) -> + _State = persist(State), false; +needs_idle_timeout(State) -> _State = persist(State), true. %%---------------------------------------------------------------------------- %% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be @@ -469,7 +506,7 @@ needs_idle_timeout(_State) -> %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -idle_timeout(State) -> a(tx_commit_index(State)). +idle_timeout(State) -> persist(tx_commit_index(State)). %%---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue @@ -477,7 +514,7 @@ idle_timeout(State) -> a(tx_commit_index(State)). %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -handle_pre_hibernate(State) -> State. +handle_pre_hibernate(State) -> persist(State). %%---------------------------------------------------------------------------- %% status/1 exists for debugging purposes, to be able to expose state @@ -485,13 +522,16 @@ handle_pre_hibernate(State) -> State. %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(#state { q = Q, - len = Len, - pending_ack = PA, - ack_index = AI, - on_sync = #sync { funs = From }, - next_seq_id = NextSeqId }) -> - [{q, queue:len(Q)}, +status(State = #state { mnesiaNameAtom = QueueNameAtom, + q = Q, + len = Len, + pending_ack = PA, + ack_index = AI, + on_sync = #sync { funs = From }, + next_seq_id = NextSeqId }) -> + _State = persist(State), + [{name, QueueNameAtom}, + {q, queue:len(Q)}, {len, Len}, {pending_acks, dict:size(PA)}, {outstanding_txns, length(From)}, @@ -502,6 +542,10 @@ status(#state { q = Q, %% Minor helpers %%---------------------------------------------------------------------------- +%% a(State) checks a queue state. + +-spec a/1 :: (state()) -> state(). + a(State = #state { q = Q, len = Len }) -> E4 = queue:is_empty(Q), LZ = Len == 0, @@ -509,100 +553,191 @@ a(State = #state { q = Q, len = Len }) -> true = Len >= 0, State. +%% m(MsgStatus) checks a message status. + +-spec m/1 :: (#msg_status{}) -> #msg_status{}. + m(MsgStatus) -> MsgStatus. +%% retrieve(State) retrieve the queue state from Mnesia. +%% +%% BUG: This should really be done as part of a per-operation Mnesia +%% transaction! + +-spec(retrieve/1 :: (state()) -> state()). + +retrieve(State = #state { mnesiaNameAtom = QueueNameAtom}) -> + case (catch mnesia:dirty_read(QueueNameAtom, state)) of + {atomic, [State1]} -> State1; + Other -> + rabbit_log:error("*** retrieve failed: ~p", [Other]), + State + end. + +%% persist(State) checks a queue state and naively persists it +%% into Mnesia. We'll want something just a little more sophisticated +%% in the near future.... +%% +%% BUG: Extra specs should be moved to top. + +-spec(persist/1 :: (state()) -> state()). + +persist(State = #state { mnesiaNameAtom = QueueNameAtom }) -> + _State = a(State), + case (catch mnesia:dirty_write(QueueNameAtom, State)) of + ok -> ok; + Other -> + rabbit_log:error("*** persist failed: ~p", [Other]) + end, + State. + +-spec gb_sets_maybe_insert(boolean(), rabbit_guid:guid(), gb_set()) -> + gb_set(). + gb_sets_maybe_insert(false, _Val, Set) -> Set; %% when requeueing, we re-add a guid to the unconfirmed set gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). +-spec msg_status(seq_id(), + rabbit_types:basic_message(), + rabbit_types:message_properties()) -> + #msg_status{}. + msg_status(SeqId, Msg, MsgProps) -> #msg_status { seq_id = SeqId, msg = Msg, is_delivered = false, - msg_props = MsgProps }. + msg_props = MsgProps }. + +-spec lookup_tx(_) -> #tx{}. + +lookup_tx(Txn) -> + case get({txn, Txn}) of + undefined -> #tx { pending_messages = [], pending_acks = [] }; + V -> V + end. + +-spec store_tx(rabbit_types:txn(), #tx{}) -> ok. -lookup_tx(Txn) -> case get({txn, Txn}) of - undefined -> - #tx { pending_messages = [], pending_acks = [] }; - V -> V - end. +store_tx(Txn, Tx) -> + put({txn, Txn}, Tx), + ok. -store_tx(Txn, Tx) -> put({txn, Txn}, Tx). +-spec erase_tx(rabbit_types:txn()) -> ok. -erase_tx(Txn) -> erase({txn, Txn}). +erase_tx(Txn) -> + erase({txn, Txn}), + ok. + +%% Convert a queue name (a record) into an atom, for use with Mnesia. + +%% TODO: Import correct type. + +-spec queueNameAtom(_) -> atom(). + +queueNameAtom(QueueName) -> + list_to_atom(lists:flatten(io_lib:format("~p", [QueueName]))). %%---------------------------------------------------------------------------- %% Internal major helpers for Public API %%---------------------------------------------------------------------------- -tx_commit_post_msg_store(Pubs, AckTags, Fun, MsgPropsFun, - State = #state { on_sync = OnSync }) -> - State1 = tx_commit_index( - State #state { on_sync = #sync { acks = [AckTags], - pubs = [{MsgPropsFun, Pubs}], - funs = [Fun] } }), +-spec tx_commit_post_msg_store([rabbit_types:basic_message()], + [seq_id()], + fun (() -> any()), + message_properties_transformer(), + state()) -> + state(). + +tx_commit_post_msg_store(Pubs, + AckTags, + Fun, + MsgPropsFun, + State = #state { on_sync = OnSync }) -> + State1 = + tx_commit_index( + State #state { on_sync = #sync { acks = [AckTags], + pubs = [{MsgPropsFun, Pubs}], + funs = [Fun] } }), State1 #state { on_sync = OnSync }. +-spec tx_commit_index(state()) -> state(). + tx_commit_index(State = #state { on_sync = ?BLANK_SYNC }) -> State; -tx_commit_index(State = #state { on_sync = #sync { acks = SAcks, - pubs = SPubs, - funs = SFuns } }) -> +tx_commit_index(State = #state { + on_sync = #sync { acks = SAcks, + pubs = SPubs, + funs = SFuns } }) -> Acks = lists:append(SAcks), {_Guids, NewState} = ack(Acks, State), Pubs = [{Msg, Fun(MsgProps)} || - {Fun, PubsN} <- lists:reverse(SPubs), - {Msg, MsgProps} <- lists:reverse(PubsN)], + {Fun, PubsN} <- lists:reverse(SPubs), + {Msg, MsgProps} <- lists:reverse(PubsN)], {_SeqIds, State1} = - lists:foldl( - fun ({Msg, MsgProps}, {SeqIdsAcc, State2}) -> - {_SeqId, State3} = - publish(Msg, MsgProps, false, false, State2), - {SeqIdsAcc, State3} - end, - {[], NewState}, - Pubs), - [ Fun() || Fun <- lists:reverse(SFuns) ], + lists:foldl( + fun ({Msg, MsgProps}, {SeqIdsAcc, State2}) -> + {_SeqId, State3} = publish(Msg, MsgProps, false, State2), + {SeqIdsAcc, State3} + end, + {[], NewState}, + Pubs), + _ = [ Fun() || Fun <- lists:reverse(SFuns) ], State1 #state { on_sync = ?BLANK_SYNC }. %%---------------------------------------------------------------------------- %% Internal gubbins for publishing %%---------------------------------------------------------------------------- +-spec publish(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + {seq_id(), state()}. + publish(Msg = #basic_message { guid = Guid }, - MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, _MsgOnDisk, - State = #state { q = Q, - next_seq_id = SeqId, - len = Len, - in_counter = InCount, - unconfirmed = Unconfirmed }) -> - MsgStatus = (msg_status(SeqId, Msg, MsgProps)) + MsgProps = #message_properties { needs_confirming = NeedsConfirming }, + IsDelivered, + State = #state { q = Q, + next_seq_id = SeqId, + len = Len, + in_counter = InCount, + unconfirmed = Unconfirmed }) -> + MsgStatus = + (msg_status(SeqId, Msg, MsgProps)) #msg_status { is_delivered = IsDelivered }, State1 = State #state { q = queue:in(m(MsgStatus), Q) }, Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), {SeqId, State1 #state { next_seq_id = SeqId + 1, - len = Len + 1, - in_counter = InCount + 1, - unconfirmed = Unconfirmed1 }}. + len = Len + 1, + in_counter = InCount + 1, + unconfirmed = Unconfirmed1 }}. %%---------------------------------------------------------------------------- %% Internal gubbins for acks %%---------------------------------------------------------------------------- -record_pending_ack(MsgStatus = #msg_status { seq_id = SeqId, - msg = #basic_message { - guid = Guid }}, - State = #state { pending_ack = PA, - ack_index = AI, - ack_in_counter = AckInCount}) -> +-spec record_pending_ack(#msg_status{}, state()) -> state(). + +record_pending_ack(MsgStatus = + #msg_status { seq_id = SeqId, + msg = #basic_message { guid = Guid }}, + State = + #state { pending_ack = PA, + ack_index = AI, + ack_in_counter = AckInCount}) -> {AckEntry, AI1} = {MsgStatus, gb_trees:insert(SeqId, Guid, AI)}, PA1 = dict:store(SeqId, AckEntry, PA), State #state { pending_ack = PA1, - ack_index = AI1, - ack_in_counter = AckInCount + 1}. + ack_index = AI1, + ack_in_counter = AckInCount + 1}. + +-spec remove_pending_ack(state()) -> state(). remove_pending_ack(State = #state { pending_ack = PA }) -> _ = dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), a(State #state { pending_ack = dict:new(), - ack_index = gb_trees:empty() }). + ack_index = gb_trees:empty() }). + +-spec ack(fun((_, state()) -> state()), [any()], state()) -> + {[rabbit_guid:guid()], state()}. ack(_Fun, [], State) -> {[], State}; ack(Fun, AckTags, State) -> @@ -624,16 +759,24 @@ ack(Fun, AckTags, State) -> {lists:reverse(AllGuids), State1 #state { ack_out_counter = AckOutCount + length(AckTags) }}. +-spec accumulate_ack_init() -> {[], [], []}. + accumulate_ack_init() -> {[], orddict:new(), []}. -accumulate_ack(_SeqId, #msg_status { msg = #basic_message { guid = Guid }}, - {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> +-spec accumulate_ack(seq_id(), #msg_status{}, {_, _, _}) -> + {_, _, [rabbit_guid:guid()]}. + +accumulate_ack(_SeqId, + #msg_status { msg = #basic_message { guid = Guid }}, + {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}. %%---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- +-spec remove_confirms(gb_set(), state()) -> state(). + remove_confirms(GuidSet, State = #state { unconfirmed = UC }) -> State #state { unconfirmed = gb_sets:difference(UC, GuidSet) }. -- cgit v1.2.1 From 560bf8c32259838896360b5bdab8a2e662da4fd8 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 12 Jan 2011 17:57:46 -0800 Subject: Still ripping out dead code and dead fields. --- src/rabbit_mnesia_queue.erl | 461 ++++++++++++++++++++++++-------------------- 1 file changed, 254 insertions(+), 207 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 924c5215..d8218a3b 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -48,19 +48,19 @@ %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- -%% In the queue we keep track of both messages that are pending -%% delivery and messages that are pending acks. This ensures that -%% purging (deleting the former) and deletion (deleting the former and -%% the latter) are both cheap and do require any scanning through q -%% segments. +%% In the queue we store both messages that are pending delivery and +%% messages that are pending acks. This ensures that purging (deleting +%% the former) and deletion (deleting the former and the latter) are +%% both cheap and do not require any scanning through lists of messages. %% -%% Pending acks are recorded in memory as the message itself. +%% Pending acks are recorded in memory as "m" records, containing the +%% messages themselves. %% %% All queues are durable in this version, no matter how they are -%% requested. (We may need to remember the requested type in the +%% requested. (We will need to remember the requested type in the %% future, to catch accidental redeclares.) All messages are transient -%% (non-persistent) in this interim version, in order to rip aout all -%% of the old backing code before insetring the new backing +%% (non-persistent) in this interim version, in order to rip out all +%% of the old backing code before inserting the new backing %% code. (This breaks some tests, since all messages are temporarily %% dropped on restart.) %% @@ -71,36 +71,44 @@ %% BUG: I've temporarily ripped out most of the calls to Mnesia while %% debugging problems with the Mnesia documentation. (Ask me sometimes -%% over drinks to explain how bad it is.) I've figuerd things out now -%% and will soon put them back in. +%% over drinks to explain how just plain wrong it is.) I've figured +%% out the real type signatures now and will soon put everything back +%% in. -behaviour(rabbit_backing_queue). --record(state, - { mnesiaNameAtom, - q, - next_seq_id, +-record(state, % The in-RAM queue state + { mnesiaTableName, % An atom naming the associated Mnesia table + q, % A temporary in-RAM queue of "m" records + len, % The number of msgs in the queue + next_seq_id, % The next seq_id used to build the next "m" + in_counter, % The count of msgs in, so far. + out_counter, % The count of msgs out, so far. + + %% redo the following? pending_ack, ack_index, - on_sync, - len, - out_counter, - in_counter, + unconfirmed, - ack_out_counter, - ack_in_counter + + on_sync }). --record(msg_status, - { seq_id, - msg, - is_delivered, - msg_props +-record(m, % A wrapper aroung a msg + { msg, % The msg itself + seq_id, % The seq_id for the msg + msg_props, % The message properties, as passed in + is_delivered % Whether the msg has been delivered }). --record(tx, { pending_messages, pending_acks }). +-record(tx, + { pending_messages, + pending_acks }). --record(sync, { acks, pubs, funs }). +-record(sync, + { acks, + pubs, + funs }). -include("rabbit.hrl"). @@ -118,26 +126,22 @@ [rabbit_types:basic_message()]}], funs :: [fun (() -> any())] }). --type(state() :: #state { mnesiaNameAtom :: atom(), +-type(state() :: #state { mnesiaTableName :: atom(), q :: queue(), + len :: non_neg_integer(), next_seq_id :: seq_id(), + in_counter :: non_neg_integer(), + out_counter :: non_neg_integer(), pending_ack :: dict(), ack_index :: gb_tree(), - on_sync :: sync(), - len :: non_neg_integer(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), unconfirmed :: gb_set(), - ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer() }). + on_sync :: sync() }). -include("rabbit_backing_queue_spec.hrl"). %% -endif. --define(BLANK_SYNC, #sync { acks = [], - pubs = [], - funs = [] }). +-define(BLANK_SYNC, #sync { acks = [], pubs = [], funs = [] }). %%---------------------------------------------------------------------------- %% Public API @@ -150,7 +154,9 @@ %% allows the backing queue to perform any checking necessary for the %% consistency of those queues, or initialise any other shared %% resources. - +%% +%% This function should be called only from outside this module. +%% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). %%---------------------------------------------------------------------------- @@ -164,17 +170,21 @@ start(_DurableQueues) -> ok. %% Implementations should not depend on this function being called on %% shutdown and instead should hook into the rabbit supervision %% hierarchy. - +%% +%% This function should be called only from outside this module. +%% %% -spec(stop/0 :: () -> 'ok'). stop() -> ok. %%---------------------------------------------------------------------------- %% init/3 initializes one backing queue and its state. - +%% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) %% -> state()). +%% +%% This function should be called only from outside this module. %% BUG: Should do quite a bit more upon recovery.... @@ -184,30 +194,30 @@ stop() -> ok. %% BUG: Need to provide back-pressure when queue is filling up. init(QueueName, _IsDurable, _Recover) -> - QueueNameAtom = queueNameAtom(QueueName), - _ = (catch mnesia:delete_table(QueueNameAtom)), + MnesiaTableName = mnesiaTableName(QueueName), + _ = (catch mnesia:delete_table(MnesiaTableName)), {atomic, ok} = - (catch mnesia:create_table( - QueueNameAtom, - [{record_name, state}, - {attributes, record_info(fields, state)}])), - persist(#state { mnesiaNameAtom = QueueNameAtom, + (catch mnesia:create_table( + MnesiaTableName, + [{record_name, state}, + {attributes, record_info(fields, state)}])), + persist(#state { mnesiaTableName = MnesiaTableName, q = queue:new(), + len = 0, next_seq_id = 0, + in_counter = 0, + out_counter = 0, pending_ack = dict:new(), ack_index = gb_trees:empty(), - on_sync = ?BLANK_SYNC, - len = 0, - out_counter = 0, - in_counter = 0, unconfirmed = gb_sets:new(), - ack_out_counter = 0, - ack_in_counter = 0 }). + on_sync = ?BLANK_SYNC }). %%---------------------------------------------------------------------------- %% terminate/1 is called on queue shutdown when the queue isn't being %% deleted. - +%% +%% This function should be called only from outside this module. +%% %% -spec(terminate/1 :: (state()) -> state()). terminate(State) -> persist(remove_pending_ack(tx_commit_index(State))). @@ -217,7 +227,9 @@ terminate(State) -> persist(remove_pending_ack(tx_commit_index(State))). %% needs to delete all its content. The only difference between purge %% and delete is that delete also needs to delete everything that's %% been delivered and not ack'd. - +%% +%% This function should be called only from outside this module. +%% %% -spec(delete_and_terminate/1 :: (state()) -> state()). %% the only difference between purge and delete is that delete also @@ -230,15 +242,25 @@ delete_and_terminate(State) -> %%---------------------------------------------------------------------------- %% purge/1 removes all messages in the queue, but not messages which %% have been fetched and are pending acks. - +%% +%% This function should be called only from outside this module. +%% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(State = #state { len = Len }) -> - {Len, persist(State #state { q = queue:new(), len = 0 })}. +purge(State) -> + {Len, State1} = internal_purge(State), + {Len, persist(State1)}. + +-spec(internal_purge/1 :: (state()) -> {purged_msg_count(), state()}). + +internal_purge(State = #state { len = Len }) -> + {Len, checkA(State #state { q = queue:new(), len = 0 })}. %%---------------------------------------------------------------------------- %% publish/3 publishes a message. - +%% +%% This function should be called only from outside this module. +%% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), %% rabbit_types:message_properties(), @@ -253,7 +275,9 @@ publish(Msg, MsgProps, State) -> %% publish_delivered/4 is called for messages which have already been %% passed straight out to a client. The queue will be empty for these %% calls (i.e. saves the round trip through the backing queue). - +%% +%% This function should be called only from outside this module. +%% %% -spec(publish_delivered/4 :: %% (ack_required(), %% rabbit_types:basic_message(), @@ -269,22 +293,23 @@ publish_delivered(true, needs_confirming = NeedsConfirming }, State = #state { len = 0, next_seq_id = SeqId, - out_counter = OutCount, in_counter = InCount, + out_counter = OutCount, unconfirmed = Unconfirmed }) -> - MsgStatus = - (msg_status(SeqId, Msg, MsgProps)) #msg_status { is_delivered = true }, - State1 = record_pending_ack(m(MsgStatus), State), + M = (m(Msg, SeqId, MsgProps)) #m { is_delivered = true }, + State1 = record_pending_ack(checkM(M), State), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), {SeqId, persist(State1 #state { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, in_counter = InCount + 1, + out_counter = OutCount + 1, unconfirmed = Unconfirmed1 })}. %%---------------------------------------------------------------------------- %% dropwhile/2 drops messages from the head of the queue while the %% supplied predicate returns true. - +%% +%% This function should be called only from outside this module. +%% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) %% -> state()). @@ -299,82 +324,93 @@ dropwhile(Pred, State) -> dropwhile1(Pred, State) -> internal_queue_out( - fun(MsgStatus = #msg_status { msg_props = MsgProps }, State1) -> + fun (M = #m { msg_props = MsgProps }, State1) -> case Pred(MsgProps) of true -> - {_, State2} = internal_fetch(false, MsgStatus, State1), + {_, State2} = internal_fetch(false, M, State1), dropwhile1(Pred, State2); false -> %% message needs to go back into Q #state { q = Q } = State1, - {ok, State1 #state {q = queue:in_r(MsgStatus, Q) }} + {ok, State1 #state {q = queue:in_r(M, Q) }} end end, State). %%---------------------------------------------------------------------------- %% fetch/2 produces the next message. - +%% +%% This function should be called only from outside this module. +%% %% -spec(fetch/2 :: (ack_required(), state()) -> %% {ok | fetch_result(), state()}). fetch(AckRequired, State) -> internal_queue_out( - fun(MsgStatus, State1) -> - internal_fetch(AckRequired, MsgStatus, State1) + fun (M, State1) -> + internal_fetch(AckRequired, M, State1) end, persist(State)). --spec internal_queue_out(fun((#msg_status{}, state()) -> T), state()) -> - {empty, state()} | T. +-spec internal_queue_out(fun ((#m{}, state()) -> T), state()) -> + {empty, state()} | T. internal_queue_out(Fun, State = #state { q = Q }) -> case queue:out(Q) of - {empty, _Q} -> {empty, a(State)}; - {{value, MsgStatus}, Qa} -> Fun(MsgStatus, State #state { q = Qa }) + {empty, _Q} -> {empty, checkA(State)}; + {{value, M}, Qa} -> Fun(M, State #state { q = Qa }) end. --spec internal_fetch/3 :: (ack_required(), #msg_status{}, state()) -> - {fetch_result(), state()}. +-spec internal_fetch/3 :: (ack_required(), #m{}, state()) -> + {fetch_result(), state()}. internal_fetch(AckRequired, - MsgStatus = #msg_status { seq_id = SeqId, - msg = Msg, - is_delivered = IsDelivered }, - State = #state {out_counter = OutCount, len = Len }) -> + M = #m { msg = Msg, + seq_id = SeqId, + is_delivered = IsDelivered }, + State = #state {len = Len, out_counter = OutCount }) -> {AckTag, State1} = case AckRequired of true -> StateN = - record_pending_ack( - MsgStatus #msg_status { is_delivered = true }, - State), + record_pending_ack(M #m { is_delivered = true }, State), {SeqId, StateN}; false -> {blank_ack, State} end, Len1 = Len - 1, {{Msg, IsDelivered, AckTag, Len1}, - a(State1 #state { out_counter = OutCount + 1, len = Len1 })}. + checkA(State1 #state { len = Len1, out_counter = OutCount + 1 })}. %%---------------------------------------------------------------------------- %% ack/2 acknowledges messages. Acktags supplied are for messages %% which can now be forgotten about. Must return 1 guid per Ack, in %% the same order as Acks. - +%% +%% This function should be called only from outside this module. +%% %% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). ack(AckTags, State) -> - {Guids, State1} = - ack(fun (#msg_status { msg = #basic_message { guid = Guid } }, - State1) -> - remove_confirms(gb_sets:singleton(Guid), State1) - end, - AckTags, State), + {Guids, State1} = internal_ack(AckTags, State), {Guids, persist(State1)}. +-spec(internal_ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). + +internal_ack(AckTags, State) -> + {Guids, State1} = + internal_ack( + fun (#m { msg = #basic_message { guid = Guid }}, State1) -> + remove_confirms(gb_sets:singleton(Guid), State1) + end, + AckTags, + State), + {Guids, checkA(State1)}. + %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. - +%% +%% This function should be called only from outside this module. +%% %% -spec(tx_publish/4 :: %% (rabbit_types:txn(), %% rabbit_types:basic_message(), @@ -389,7 +425,9 @@ tx_publish(Txn, Msg, MsgProps, State) -> %%---------------------------------------------------------------------------- %% tx_ack/3 acks, but in the context of a transaction. - +%% +%% This function should be called only from outside this module. +%% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). tx_ack(Txn, AckTags, State) -> @@ -400,7 +438,9 @@ tx_ack(Txn, AckTags, State) -> %%---------------------------------------------------------------------------- %% tx_rollback/2 undoes anything which has been done in the context of %% the specified transaction. - +%% +%% This function should be called only from outside this module. +%% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, State) -> @@ -412,7 +452,9 @@ tx_rollback(Txn, State) -> %% tx_commit/4 commits a transaction. The Fun passed in must be called %% once the messages have really been commited. This CPS permits the %% possibility of commit coalescing. - +%% +%% This function should be called only from outside this module. +%% %% -spec(tx_commit/4 :: %% (rabbit_types:txn(), %% fun (() -> any()), @@ -431,23 +473,27 @@ tx_commit(Txn, Fun, MsgPropsFun, State) -> %%---------------------------------------------------------------------------- %% requeue/3 reinserts messages into the queue which have already been %% delivered and were pending acknowledgement. - +%% +%% This function should be called only from outside this module. +%% %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). requeue(AckTags, MsgPropsFun, State) -> {_Guids, State1} = - ack(fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> - {_SeqId, State2} = - publish(Msg, MsgPropsFun(MsgProps), true, State1), - State2 - end, - AckTags, State), + internal_ack( + fun (#m { msg = Msg, msg_props = MsgProps }, State1) -> + {_SeqId, State2} = + publish(Msg, MsgPropsFun(MsgProps), true, State1), + State2 + end, + AckTags, + State), persist(State1). %%---------------------------------------------------------------------------- %% len/1 returns the queue length. - +%% %% -spec(len/1 :: (state()) -> non_neg_integer()). len(State = #state { len = Len }) -> _State = persist(State), Len. @@ -455,7 +501,7 @@ len(State = #state { len = Len }) -> _State = persist(State), Len. %%---------------------------------------------------------------------------- %% is_empty/1 returns 'true' if the queue is empty, and 'false' %% otherwise. - +%% %% -spec(is_empty/1 :: (state()) -> boolean()). is_empty(State) -> 0 == len(State). @@ -471,7 +517,9 @@ is_empty(State) -> 0 == len(State). %% set_ram_duration_target states that the target is to have no more %% messages in RAM than indicated by the duration and the current %% queue rates. - +%% +%% This function should be called only from outside this module. +%% %% -spec(set_ram_duration_target/2 :: %% (('undefined' | 'infinity' | number()), state()) %% -> state()). @@ -483,7 +531,9 @@ set_ram_duration_target(_DurationTarget, State) -> persist(State). %% (likely to be just update your internal rates), and report how many %% seconds the messages in RAM represent given the current rates of %% the queue. - +%% +%% This function should be called only from outside this module. +%% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). ram_duration(State) -> {0, persist(State)}. @@ -492,7 +542,9 @@ ram_duration(State) -> {0, persist(State)}. %% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be %% called as soon as the queue process can manage (either on an empty %% mailbox, or when a timer fires), and 'false' otherwise. - +%% +%% This function should be called only from outside this module. +%% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). needs_idle_timeout(State = #state { on_sync = ?BLANK_SYNC }) -> @@ -503,7 +555,9 @@ needs_idle_timeout(State) -> _State = persist(State), true. %% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be %% called as soon as the queue process can manage (either on an empty %% mailbox, or when a timer fires), and 'false' otherwise. - +%% +%% This function should be called only from outside this module. +%% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). idle_timeout(State) -> persist(tx_commit_index(State)). @@ -511,7 +565,9 @@ idle_timeout(State) -> persist(tx_commit_index(State)). %%---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue %% hibernates. - +%% +%% This function should be called only from outside this module. +%% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). handle_pre_hibernate(State) -> persist(State). @@ -519,45 +575,47 @@ handle_pre_hibernate(State) -> persist(State). %%---------------------------------------------------------------------------- %% status/1 exists for debugging purposes, to be able to expose state %% via rabbitmqctl list_queues backing_queue_status - +%% +%% This function should be called only from outside this module. +%% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(State = #state { mnesiaNameAtom = QueueNameAtom, +status(State = #state { mnesiaTableName = MnesiaTableName, q = Q, len = Len, + next_seq_id = NextSeqId, pending_ack = PA, ack_index = AI, - on_sync = #sync { funs = From }, - next_seq_id = NextSeqId }) -> + on_sync = #sync { funs = Funs }}) -> _State = persist(State), - [{name, QueueNameAtom}, + [{mnesiaTableName, MnesiaTableName}, {q, queue:len(Q)}, {len, Len}, + {next_seq_id, NextSeqId}, {pending_acks, dict:size(PA)}, - {outstanding_txns, length(From)}, {ack_count, gb_trees:size(AI)}, - {next_seq_id, NextSeqId}]. + {outstanding_txns, length(Funs)}]. %%---------------------------------------------------------------------------- %% Minor helpers %%---------------------------------------------------------------------------- -%% a(State) checks a queue state. +%% checkA(State) checks a state, but otherwise acts as the identity function. --spec a/1 :: (state()) -> state(). +-spec checkA/1 :: (state()) -> state(). -a(State = #state { q = Q, len = Len }) -> +checkA(State = #state { q = Q, len = Len }) -> E4 = queue:is_empty(Q), LZ = Len == 0, true = LZ == E4, true = Len >= 0, State. -%% m(MsgStatus) checks a message status. +%% checkM(M) checks an m, but otherwise acts as the identity function. --spec m/1 :: (#msg_status{}) -> #msg_status{}. +-spec checkM/1 :: (#m{}) -> #m{}. -m(MsgStatus) -> MsgStatus. +checkM(M) -> M. %% retrieve(State) retrieve the queue state from Mnesia. %% @@ -566,8 +624,8 @@ m(MsgStatus) -> MsgStatus. -spec(retrieve/1 :: (state()) -> state()). -retrieve(State = #state { mnesiaNameAtom = QueueNameAtom}) -> - case (catch mnesia:dirty_read(QueueNameAtom, state)) of +retrieve(State = #state { mnesiaTableName = MnesiaTableName}) -> + case (catch mnesia:dirty_read(MnesiaTableName, state)) of {atomic, [State1]} -> State1; Other -> rabbit_log:error("*** retrieve failed: ~p", [Other]), @@ -582,9 +640,9 @@ retrieve(State = #state { mnesiaNameAtom = QueueNameAtom}) -> -spec(persist/1 :: (state()) -> state()). -persist(State = #state { mnesiaNameAtom = QueueNameAtom }) -> - _State = a(State), - case (catch mnesia:dirty_write(QueueNameAtom, State)) of +persist(State = #state { mnesiaTableName = MnesiaTableName }) -> + _State = checkA(State), + case (catch mnesia:dirty_write(MnesiaTableName, State)) of ok -> ok; Other -> rabbit_log:error("*** persist failed: ~p", [Other]) @@ -592,20 +650,23 @@ persist(State = #state { mnesiaNameAtom = QueueNameAtom }) -> State. -spec gb_sets_maybe_insert(boolean(), rabbit_guid:guid(), gb_set()) -> - gb_set(). + gb_set(). + +%% When requeueing, we re-add a guid to the unconfirmed set. gb_sets_maybe_insert(false, _Val, Set) -> Set; -%% when requeueing, we re-add a guid to the unconfirmed set gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). --spec msg_status(seq_id(), - rabbit_types:basic_message(), - rabbit_types:message_properties()) -> - #msg_status{}. +-spec m(rabbit_types:basic_message(), + seq_id(), + rabbit_types:message_properties()) -> + #m{}. -msg_status(SeqId, Msg, MsgProps) -> - #msg_status { seq_id = SeqId, msg = Msg, is_delivered = false, - msg_props = MsgProps }. +m(Msg, SeqId, MsgProps) -> + #m { msg = Msg, + seq_id = SeqId, + msg_props = MsgProps, + is_delivered = false }. -spec lookup_tx(_) -> #tx{}. @@ -617,23 +678,19 @@ lookup_tx(Txn) -> -spec store_tx(rabbit_types:txn(), #tx{}) -> ok. -store_tx(Txn, Tx) -> - put({txn, Txn}, Tx), - ok. +store_tx(Txn, Tx) -> put({txn, Txn}, Tx), ok. -spec erase_tx(rabbit_types:txn()) -> ok. -erase_tx(Txn) -> - erase({txn, Txn}), - ok. +erase_tx(Txn) -> erase({txn, Txn}), ok. -%% Convert a queue name (a record) into an atom, for use with Mnesia. +%% Convert a queue name (a record) into an Mnesia table name (an atom). %% TODO: Import correct type. --spec queueNameAtom(_) -> atom(). +-spec mnesiaTableName(_) -> atom(). -queueNameAtom(QueueName) -> +mnesiaTableName(QueueName) -> list_to_atom(lists:flatten(io_lib:format("~p", [QueueName]))). %%---------------------------------------------------------------------------- @@ -641,11 +698,11 @@ queueNameAtom(QueueName) -> %%---------------------------------------------------------------------------- -spec tx_commit_post_msg_store([rabbit_types:basic_message()], - [seq_id()], - fun (() -> any()), - message_properties_transformer(), - state()) -> - state(). + [seq_id()], + fun (() -> any()), + message_properties_transformer(), + state()) -> + state(). tx_commit_post_msg_store(Pubs, AckTags, @@ -656,7 +713,7 @@ tx_commit_post_msg_store(Pubs, tx_commit_index( State #state { on_sync = #sync { acks = [AckTags], pubs = [{MsgPropsFun, Pubs}], - funs = [Fun] } }), + funs = [Fun] }}), State1 #state { on_sync = OnSync }. -spec tx_commit_index(state()) -> state(). @@ -665,9 +722,9 @@ tx_commit_index(State = #state { on_sync = ?BLANK_SYNC }) -> State; tx_commit_index(State = #state { on_sync = #sync { acks = SAcks, pubs = SPubs, - funs = SFuns } }) -> + funs = SFuns }}) -> Acks = lists:append(SAcks), - {_Guids, NewState} = ack(Acks, State), + {_Guids, NewState} = internal_ack(Acks, State), Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), {Msg, MsgProps} <- lists:reverse(PubsN)], @@ -687,26 +744,24 @@ tx_commit_index(State = #state { %%---------------------------------------------------------------------------- -spec publish(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - state()) -> - {seq_id(), state()}. + rabbit_types:message_properties(), + boolean(), + state()) -> + {seq_id(), state()}. publish(Msg = #basic_message { guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, IsDelivered, State = #state { q = Q, - next_seq_id = SeqId, len = Len, + next_seq_id = SeqId, in_counter = InCount, unconfirmed = Unconfirmed }) -> - MsgStatus = - (msg_status(SeqId, Msg, MsgProps)) - #msg_status { is_delivered = IsDelivered }, - State1 = State #state { q = queue:in(m(MsgStatus), Q) }, + M = (m(Msg, SeqId, MsgProps)) #m { is_delivered = IsDelivered }, + State1 = State #state { q = queue:in(checkM(M), Q) }, Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, State1 #state { next_seq_id = SeqId + 1, - len = Len + 1, + {SeqId, State1 #state { len = Len + 1, + next_seq_id = SeqId + 1, in_counter = InCount + 1, unconfirmed = Unconfirmed1 }}. @@ -714,60 +769,52 @@ publish(Msg = #basic_message { guid = Guid }, %% Internal gubbins for acks %%---------------------------------------------------------------------------- --spec record_pending_ack(#msg_status{}, state()) -> state(). +-spec record_pending_ack(#m{}, state()) -> state(). -record_pending_ack(MsgStatus = - #msg_status { seq_id = SeqId, - msg = #basic_message { guid = Guid }}, - State = - #state { pending_ack = PA, - ack_index = AI, - ack_in_counter = AckInCount}) -> - {AckEntry, AI1} = {MsgStatus, gb_trees:insert(SeqId, Guid, AI)}, - PA1 = dict:store(SeqId, AckEntry, PA), - State #state { pending_ack = PA1, - ack_index = AI1, - ack_in_counter = AckInCount + 1}. +record_pending_ack(M = #m { msg = #basic_message { guid = Guid }, + seq_id = SeqId }, + State = #state { pending_ack = PA, ack_index = AI }) -> + AI1 = gb_trees:insert(SeqId, Guid, AI), + PA1 = dict:store(SeqId, M, PA), + State #state { pending_ack = PA1, ack_index = AI1 }. -spec remove_pending_ack(state()) -> state(). remove_pending_ack(State = #state { pending_ack = PA }) -> _ = dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - a(State #state { pending_ack = dict:new(), - ack_index = gb_trees:empty() }). - --spec ack(fun((_, state()) -> state()), [any()], state()) -> - {[rabbit_guid:guid()], state()}. - -ack(_Fun, [], State) -> {[], State}; -ack(Fun, AckTags, State) -> - {{_PersistentSeqIds, _GuidsByStore, AllGuids}, - State1 = #state { ack_out_counter = AckOutCount }} = - lists:foldl( - fun (SeqId, - {Acc, - State2 = #state { pending_ack = PA, ack_index = AI }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, - State2 #state { - pending_ack = dict:erase(SeqId, PA), - ack_index = gb_trees:delete_any(SeqId, AI)})} - end, - {accumulate_ack_init(), State}, - AckTags), - {lists:reverse(AllGuids), - State1 #state { ack_out_counter = AckOutCount + length(AckTags) }}. + checkA(State #state { pending_ack = dict:new(), + ack_index = gb_trees:empty() }). + +-spec internal_ack(fun ((_, state()) -> state()), [any()], state()) -> + {[rabbit_guid:guid()], state()}. + +internal_ack(_Fun, [], State) -> {[], State}; +internal_ack(Fun, AckTags, State) -> + {{_PersistentSeqIds, _GuidsByStore, AllGuids}, State1} = + lists:foldl( + fun (SeqId, + {Acc, + State2 = #state { pending_ack = PA, ack_index = AI }}) -> + AckEntry = dict:fetch(SeqId, PA), + {accumulate_ack(SeqId, AckEntry, Acc), + Fun(AckEntry, + State2 #state { + pending_ack = dict:erase(SeqId, PA), + ack_index = gb_trees:delete_any(SeqId, AI)})} + end, + {accumulate_ack_init(), State}, + AckTags), + {lists:reverse(AllGuids), State1}. -spec accumulate_ack_init() -> {[], [], []}. accumulate_ack_init() -> {[], orddict:new(), []}. --spec accumulate_ack(seq_id(), #msg_status{}, {_, _, _}) -> +-spec accumulate_ack(seq_id(), #m{}, {_, _, _}) -> {_, _, [rabbit_guid:guid()]}. accumulate_ack(_SeqId, - #msg_status { msg = #basic_message { guid = Guid }}, + #m { msg = #basic_message { guid = Guid }}, {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}. -- cgit v1.2.1 From e8a88c7dc079e71e020e0b6e7076d868220f841e Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 13 Jan 2011 15:09:13 -0800 Subject: Simplifying code. --- Makefile | 1 + src/rabbit_mnesia_queue.erl | 355 ++++++++++++++++++++------------------------ 2 files changed, 165 insertions(+), 191 deletions(-) diff --git a/Makefile b/Makefile index e0d5744c..46b5431c 100644 --- a/Makefile +++ b/Makefile @@ -112,6 +112,7 @@ $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_c dialyze: $(BEAM_TARGETS) $(BASIC_PLT) dialyzer --plt $(BASIC_PLT) --no_native \ + -Wunmatched_returns -Werror_handling -Wbehaviours \ -Wrace_conditions $(BEAM_TARGETS) # rabbit.plt is used by rabbitmq-erlang-client's dialyze make target diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index d8218a3b..72babfb1 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -18,11 +18,11 @@ %% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial %% Technologies LLC, and Rabbit Technologies Ltd. %% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Portions created by LShift Ltd are Copyright (C) 2007-2011 LShift %% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% Copyright (C) 2007-2011 Cohesive Financial Technologies %% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. +%% (C) 2007-2011 Rabbit Technologies Ltd. %% %% All Rights Reserved. %% @@ -79,16 +79,12 @@ -record(state, % The in-RAM queue state { mnesiaTableName, % An atom naming the associated Mnesia table - q, % A temporary in-RAM queue of "m" records + q, % A temporary in-RAM queue of Ms len, % The number of msgs in the queue - next_seq_id, % The next seq_id used to build the next "m" - in_counter, % The count of msgs in, so far. - out_counter, % The count of msgs out, so far. + next_seq_id, % The next seq_id to use to build an M + pending_ack_dict, % Map from seq_id to M, pending ack %% redo the following? - pending_ack, - ack_index, - unconfirmed, on_sync @@ -97,8 +93,8 @@ -record(m, % A wrapper aroung a msg { msg, % The msg itself seq_id, % The seq_id for the msg - msg_props, % The message properties, as passed in - is_delivered % Whether the msg has been delivered + props, % The message properties + is_delivered % Has the msg been delivered? (for reporting) }). -record(tx, @@ -121,22 +117,23 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(sync() :: #sync { acks :: [[seq_id()]], - pubs :: [{message_properties_transformer(), - [rabbit_types:basic_message()]}], - funs :: [fun (() -> any())] }). - -type(state() :: #state { mnesiaTableName :: atom(), q :: queue(), len :: non_neg_integer(), next_seq_id :: seq_id(), - in_counter :: non_neg_integer(), - out_counter :: non_neg_integer(), - pending_ack :: dict(), - ack_index :: gb_tree(), + pending_ack_dict :: dict(), unconfirmed :: gb_set(), on_sync :: sync() }). +-type(tx() :: #tx { pending_messages :: [{rabbit_types:basic_message(), + rabbit_types:message_properties()}], + pending_acks :: [[ack()]] }). + +-type(sync() :: #sync { acks :: [[seq_id()]], + pubs :: [{message_properties_transformer(), + [rabbit_types:basic_message()]}], + funs :: [fun (() -> any())] }). + -include("rabbit_backing_queue_spec.hrl"). %% -endif. @@ -205,10 +202,7 @@ init(QueueName, _IsDurable, _Recover) -> q = queue:new(), len = 0, next_seq_id = 0, - in_counter = 0, - out_counter = 0, - pending_ack = dict:new(), - ack_index = gb_trees:empty(), + pending_ack_dict = dict:new(), unconfirmed = gb_sets:new(), on_sync = ?BLANK_SYNC }). @@ -220,7 +214,8 @@ init(QueueName, _IsDurable, _Recover) -> %% %% -spec(terminate/1 :: (state()) -> state()). -terminate(State) -> persist(remove_pending_ack(tx_commit_index(State))). +terminate(State) -> + persist(remove_pending_acks_state(tx_commit_index_state(State))). %%---------------------------------------------------------------------------- %% delete_and_terminate/1 is called when the queue is terminating and @@ -236,8 +231,8 @@ terminate(State) -> persist(remove_pending_ack(tx_commit_index(State))). %% needs to delete everything that's been delivered and not ack'd. delete_and_terminate(State) -> - {_PurgeCount, State1} = purge(State), - persist(remove_pending_ack(State1)). + {_, State1} = purge(State), + persist(remove_pending_acks_state(State1)). %%---------------------------------------------------------------------------- %% purge/1 removes all messages in the queue, but not messages which @@ -247,14 +242,13 @@ delete_and_terminate(State) -> %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(State) -> - {Len, State1} = internal_purge(State), - {Len, persist(State1)}. +purge(State = #state { len = Len }) -> + {Len, persist(internal_purge_state(State))}. --spec(internal_purge/1 :: (state()) -> {purged_msg_count(), state()}). +-spec(internal_purge_state/1 :: (state()) -> state()). -internal_purge(State = #state { len = Len }) -> - {Len, checkA(State #state { q = queue:new(), len = 0 })}. +internal_purge_state(State) -> + checkState(State #state { q = queue:new(), len = 0 }). %%---------------------------------------------------------------------------- %% publish/3 publishes a message. @@ -267,9 +261,8 @@ internal_purge(State = #state { len = Len }) -> %% state()) %% -> state()). -publish(Msg, MsgProps, State) -> - {_SeqId, State1} = publish(Msg, MsgProps, false, State), - persist(State1). +publish(Msg, Props, State) -> + persist(internal_publish_state(Msg, Props, false, State)). %%---------------------------------------------------------------------------- %% publish_delivered/4 is called for messages which have already been @@ -285,24 +278,23 @@ publish(Msg, MsgProps, State) -> %% state()) %% -> {ack(), state()}). -publish_delivered(false, _Msg, _MsgProps, State = #state { len = 0 }) -> +publish_delivered(false, _, _, State = #state { len = 0 }) -> {blank_ack, persist(State)}; publish_delivered(true, Msg = #basic_message { guid = Guid }, - MsgProps = #message_properties { + Props = #message_properties { needs_confirming = NeedsConfirming }, State = #state { len = 0, next_seq_id = SeqId, - in_counter = InCount, - out_counter = OutCount, unconfirmed = Unconfirmed }) -> - M = (m(Msg, SeqId, MsgProps)) #m { is_delivered = true }, - State1 = record_pending_ack(checkM(M), State), - Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, persist(State1 #state { next_seq_id = SeqId + 1, - in_counter = InCount + 1, - out_counter = OutCount + 1, - unconfirmed = Unconfirmed1 })}. + M = (m(Msg, SeqId, Props)) #m { is_delivered = true }, + {SeqId, + persist( + (record_pending_ack_state(checkM(M), State)) + #state { + next_seq_id = SeqId + 1, + unconfirmed = + gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) })}. %%---------------------------------------------------------------------------- %% dropwhile/2 drops messages from the head of the queue while the @@ -314,28 +306,28 @@ publish_delivered(true, %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) %% -> state()). -dropwhile(Pred, State) -> - {_OkOrEmpty, State1} = dropwhile1(Pred, State), - persist(State1). +dropwhile(Pred, State) -> persist(internal_dropwhile_state(Pred, State)). --spec(dropwhile1/2 :: +-spec(internal_dropwhile_state/2 :: (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> {atom(), state()}). - -dropwhile1(Pred, State) -> - internal_queue_out( - fun (M = #m { msg_props = MsgProps }, State1) -> - case Pred(MsgProps) of - true -> - {_, State2} = internal_fetch(false, M, State1), - dropwhile1(Pred, State2); - false -> - %% message needs to go back into Q - #state { q = Q } = State1, - {ok, State1 #state {q = queue:in_r(M, Q) }} - end - end, - State). + -> state()). + +internal_dropwhile_state(Pred, State) -> + {_, State1} = + internal_queue_out( + fun (M = #m { props = Props }, S) -> + case Pred(Props) of + true -> + {_, S1} = internal_fetch(false, M, S), + internal_dropwhile_state(Pred, S1); + false -> + %% message needs to go back into Q + #state { q = Q } = S, + {ok, S #state {q = queue:in_r(M, Q) }} + end + end, + State), + State1. %%---------------------------------------------------------------------------- %% fetch/2 produces the next message. @@ -346,18 +338,17 @@ dropwhile1(Pred, State) -> %% {ok | fetch_result(), state()}). fetch(AckRequired, State) -> - internal_queue_out( - fun (M, State1) -> - internal_fetch(AckRequired, M, State1) - end, - persist(State)). + {Result, State1} = + internal_queue_out( + fun (M, S) -> internal_fetch(AckRequired, M, S) end, State), + {Result, persist(State1)}. -spec internal_queue_out(fun ((#m{}, state()) -> T), state()) -> {empty, state()} | T. internal_queue_out(Fun, State = #state { q = Q }) -> case queue:out(Q) of - {empty, _Q} -> {empty, checkA(State)}; + {empty, _} -> {empty, State}; {{value, M}, Qa} -> Fun(M, State #state { q = Qa }) end. @@ -368,18 +359,18 @@ internal_fetch(AckRequired, M = #m { msg = Msg, seq_id = SeqId, is_delivered = IsDelivered }, - State = #state {len = Len, out_counter = OutCount }) -> + State = #state {len = Len }) -> {AckTag, State1} = case AckRequired of true -> - StateN = - record_pending_ack(M #m { is_delivered = true }, State), - {SeqId, StateN}; + {SeqId, + record_pending_ack_state( + M #m { is_delivered = true }, State)}; false -> {blank_ack, State} end, Len1 = Len - 1, {{Msg, IsDelivered, AckTag, Len1}, - checkA(State1 #state { len = Len1, out_counter = OutCount + 1 })}. + checkState(State1 #state { len = Len1 })}. %%---------------------------------------------------------------------------- %% ack/2 acknowledges messages. Acktags supplied are for messages @@ -399,12 +390,12 @@ ack(AckTags, State) -> internal_ack(AckTags, State) -> {Guids, State1} = internal_ack( - fun (#m { msg = #basic_message { guid = Guid }}, State1) -> - remove_confirms(gb_sets:singleton(Guid), State1) + fun (#m { msg = #basic_message { guid = Guid }}, S) -> + remove_confirms_state(gb_sets:singleton(Guid), S) end, AckTags, State), - {Guids, checkA(State1)}. + {Guids, checkState(State1)}. %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. @@ -418,9 +409,9 @@ internal_ack(AckTags, State) -> %% state()) %% -> state()). -tx_publish(Txn, Msg, MsgProps, State) -> +tx_publish(Txn, Msg, Props, State) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), + store_tx(Txn, Tx #tx { pending_messages = [{Msg, Props} | Pubs] }), persist(State). %%---------------------------------------------------------------------------- @@ -462,13 +453,13 @@ tx_rollback(Txn, State) -> %% state()) %% -> {[ack()], state()}). -tx_commit(Txn, Fun, MsgPropsFun, State) -> +tx_commit(Txn, Fun, PropsFun, State) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), {AckTags1, persist( - tx_commit_post_msg_store(Pubs, AckTags1, Fun, MsgPropsFun, State))}. + internal_tx_commit_store_state(Pubs, AckTags1, Fun, PropsFun, State))}. %%---------------------------------------------------------------------------- %% requeue/3 reinserts messages into the queue which have already been @@ -479,13 +470,11 @@ tx_commit(Txn, Fun, MsgPropsFun, State) -> %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). -requeue(AckTags, MsgPropsFun, State) -> - {_Guids, State1} = +requeue(AckTags, PropsFun, State) -> + {_, State1} = internal_ack( - fun (#m { msg = Msg, msg_props = MsgProps }, State1) -> - {_SeqId, State2} = - publish(Msg, MsgPropsFun(MsgProps), true, State1), - State2 + fun (#m { msg = Msg, props = Props }, S) -> + internal_publish_state(Msg, PropsFun(Props), true, S) end, AckTags, State), @@ -496,7 +485,7 @@ requeue(AckTags, MsgPropsFun, State) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(State = #state { len = Len }) -> _State = persist(State), Len. +len(State = #state { len = Len }) -> _ = persist(State), Len. %%---------------------------------------------------------------------------- %% is_empty/1 returns 'true' if the queue is empty, and 'false' @@ -548,8 +537,8 @@ ram_duration(State) -> {0, persist(State)}. %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). needs_idle_timeout(State = #state { on_sync = ?BLANK_SYNC }) -> - _State = persist(State), false; -needs_idle_timeout(State) -> _State = persist(State), true. + _ = persist(State), false; +needs_idle_timeout(State) -> _ = persist(State), true. %%---------------------------------------------------------------------------- %% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be @@ -560,7 +549,7 @@ needs_idle_timeout(State) -> _State = persist(State), true. %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -idle_timeout(State) -> persist(tx_commit_index(State)). +idle_timeout(State) -> persist(tx_commit_index_state(State)). %%---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue @@ -584,27 +573,26 @@ status(State = #state { mnesiaTableName = MnesiaTableName, q = Q, len = Len, next_seq_id = NextSeqId, - pending_ack = PA, - ack_index = AI, + pending_ack_dict = PAD, on_sync = #sync { funs = Funs }}) -> - _State = persist(State), + _ = persist(State), [{mnesiaTableName, MnesiaTableName}, {q, queue:len(Q)}, {len, Len}, {next_seq_id, NextSeqId}, - {pending_acks, dict:size(PA)}, - {ack_count, gb_trees:size(AI)}, + {pending_acks, dict:size(PAD)}, {outstanding_txns, length(Funs)}]. %%---------------------------------------------------------------------------- %% Minor helpers %%---------------------------------------------------------------------------- -%% checkA(State) checks a state, but otherwise acts as the identity function. +%% checkState(State) checks a state, but otherwise acts as the +%% identity function. --spec checkA/1 :: (state()) -> state(). +-spec checkState/1 :: (state()) -> state(). -checkA(State = #state { q = Q, len = Len }) -> +checkState(State = #state { q = Q, len = Len }) -> E4 = queue:is_empty(Q), LZ = Len == 0, true = LZ == E4, @@ -641,7 +629,7 @@ retrieve(State = #state { mnesiaTableName = MnesiaTableName}) -> -spec(persist/1 :: (state()) -> state()). persist(State = #state { mnesiaTableName = MnesiaTableName }) -> - _State = checkA(State), + _ = checkState(State), case (catch mnesia:dirty_write(MnesiaTableName, State)) of ok -> ok; Other -> @@ -654,7 +642,7 @@ persist(State = #state { mnesiaTableName = MnesiaTableName }) -> %% When requeueing, we re-add a guid to the unconfirmed set. -gb_sets_maybe_insert(false, _Val, Set) -> Set; +gb_sets_maybe_insert(false, _, Set) -> Set; gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). -spec m(rabbit_types:basic_message(), @@ -662,13 +650,10 @@ gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). rabbit_types:message_properties()) -> #m{}. -m(Msg, SeqId, MsgProps) -> - #m { msg = Msg, - seq_id = SeqId, - msg_props = MsgProps, - is_delivered = false }. +m(Msg, SeqId, Props) -> + #m { msg = Msg, seq_id = SeqId, props = Props, is_delivered = false }. --spec lookup_tx(_) -> #tx{}. +-spec lookup_tx(rabbit_types:txn()) -> tx(). lookup_tx(Txn) -> case get({txn, Txn}) of @@ -676,7 +661,7 @@ lookup_tx(Txn) -> V -> V end. --spec store_tx(rabbit_types:txn(), #tx{}) -> ok. +-spec store_tx(rabbit_types:txn(), tx()) -> ok. store_tx(Txn, Tx) -> put({txn, Txn}, Tx), ok. @@ -697,110 +682,99 @@ mnesiaTableName(QueueName) -> %% Internal major helpers for Public API %%---------------------------------------------------------------------------- --spec tx_commit_post_msg_store([rabbit_types:basic_message()], - [seq_id()], - fun (() -> any()), - message_properties_transformer(), - state()) -> - state(). - -tx_commit_post_msg_store(Pubs, - AckTags, - Fun, - MsgPropsFun, - State = #state { on_sync = OnSync }) -> - State1 = - tx_commit_index( - State #state { on_sync = #sync { acks = [AckTags], - pubs = [{MsgPropsFun, Pubs}], - funs = [Fun] }}), - State1 #state { on_sync = OnSync }. - --spec tx_commit_index(state()) -> state(). - -tx_commit_index(State = #state { on_sync = ?BLANK_SYNC }) -> State; -tx_commit_index(State = #state { - on_sync = #sync { acks = SAcks, - pubs = SPubs, - funs = SFuns }}) -> +-spec internal_tx_commit_store_state([rabbit_types:basic_message()], + [seq_id()], + fun (() -> any()), + message_properties_transformer(), + state()) -> + state(). + +internal_tx_commit_store_state(Pubs, + AckTags, + Fun, + PropsFun, + State = #state { on_sync = OnSync }) -> + (tx_commit_index_state( + State #state { + on_sync = + #sync { acks = [AckTags], + pubs = [{PropsFun, Pubs}], + funs = [Fun] }})) + #state { on_sync = OnSync }. + +-spec tx_commit_index_state(state()) -> state(). + +tx_commit_index_state(State = #state { on_sync = ?BLANK_SYNC }) -> State; +tx_commit_index_state(State = #state { + on_sync = #sync { acks = SAcks, + pubs = SPubs, + funs = SFuns }}) -> Acks = lists:append(SAcks), - {_Guids, NewState} = internal_ack(Acks, State), - Pubs = [{Msg, Fun(MsgProps)} || + {_, State1} = internal_ack(Acks, State), + Pubs = [{Msg, Fun(Props)} || {Fun, PubsN} <- lists:reverse(SPubs), - {Msg, MsgProps} <- lists:reverse(PubsN)], - {_SeqIds, State1} = + {Msg, Props} <- lists:reverse(PubsN)], + {_, State2} = lists:foldl( - fun ({Msg, MsgProps}, {SeqIdsAcc, State2}) -> - {_SeqId, State3} = publish(Msg, MsgProps, false, State2), - {SeqIdsAcc, State3} + fun ({Msg, Props}, {SeqIds, S}) -> + {SeqIds, internal_publish_state(Msg, Props, false, S)} end, - {[], NewState}, + {[], State1}, Pubs), _ = [ Fun() || Fun <- lists:reverse(SFuns) ], - State1 #state { on_sync = ?BLANK_SYNC }. + State2 #state { on_sync = ?BLANK_SYNC }. %%---------------------------------------------------------------------------- %% Internal gubbins for publishing %%---------------------------------------------------------------------------- --spec publish(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - state()) -> - {seq_id(), state()}. +-spec internal_publish_state(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). -publish(Msg = #basic_message { guid = Guid }, - MsgProps = #message_properties { needs_confirming = NeedsConfirming }, +internal_publish_state(Msg = #basic_message { guid = Guid }, + Props = #message_properties { needs_confirming = NeedsConfirming }, IsDelivered, State = #state { q = Q, len = Len, next_seq_id = SeqId, - in_counter = InCount, unconfirmed = Unconfirmed }) -> - M = (m(Msg, SeqId, MsgProps)) #m { is_delivered = IsDelivered }, - State1 = State #state { q = queue:in(checkM(M), Q) }, + M = (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, State1 #state { len = Len + 1, - next_seq_id = SeqId + 1, - in_counter = InCount + 1, - unconfirmed = Unconfirmed1 }}. + State #state { q = queue:in(checkM(M), Q), + len = Len + 1, + next_seq_id = SeqId + 1, + unconfirmed = Unconfirmed1 }. %%---------------------------------------------------------------------------- %% Internal gubbins for acks %%---------------------------------------------------------------------------- --spec record_pending_ack(#m{}, state()) -> state(). +-spec record_pending_ack_state(#m{}, state()) -> state(). -record_pending_ack(M = #m { msg = #basic_message { guid = Guid }, - seq_id = SeqId }, - State = #state { pending_ack = PA, ack_index = AI }) -> - AI1 = gb_trees:insert(SeqId, Guid, AI), - PA1 = dict:store(SeqId, M, PA), - State #state { pending_ack = PA1, ack_index = AI1 }. +record_pending_ack_state(M = #m { seq_id = SeqId }, + State = #state { pending_ack_dict = PAD }) -> + State #state { pending_ack_dict = dict:store(SeqId, M, PAD) }. --spec remove_pending_ack(state()) -> state(). +-spec remove_pending_acks_state(state()) -> state(). -remove_pending_ack(State = #state { pending_ack = PA }) -> - _ = dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - checkA(State #state { pending_ack = dict:new(), - ack_index = gb_trees:empty() }). +remove_pending_acks_state(State) -> + checkState(State #state { pending_ack_dict = dict:new() }). --spec internal_ack(fun ((_, state()) -> state()), [any()], state()) -> +-spec internal_ack(fun (({_, _, _}, state()) -> state()), [any()], state()) -> {[rabbit_guid:guid()], state()}. internal_ack(_Fun, [], State) -> {[], State}; internal_ack(Fun, AckTags, State) -> - {{_PersistentSeqIds, _GuidsByStore, AllGuids}, State1} = + {{_, _, AllGuids}, State1} = lists:foldl( - fun (SeqId, - {Acc, - State2 = #state { pending_ack = PA, ack_index = AI }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), + fun (SeqId, {Acc, S = #state { pending_ack_dict = PAD }}) -> + AckEntry = dict:fetch(SeqId, PAD), + {accumulate_ack(AckEntry, Acc), Fun(AckEntry, - State2 #state { - pending_ack = dict:erase(SeqId, PA), - ack_index = gb_trees:delete_any(SeqId, AI)})} + S #state { pending_ack_dict = dict:erase(SeqId, PAD)})} end, {accumulate_ack_init(), State}, AckTags), @@ -810,20 +784,19 @@ internal_ack(Fun, AckTags, State) -> accumulate_ack_init() -> {[], orddict:new(), []}. --spec accumulate_ack(seq_id(), #m{}, {_, _, _}) -> +-spec accumulate_ack(#m{}, {_, _, [rabbit_guid:guid()]}) -> {_, _, [rabbit_guid:guid()]}. -accumulate_ack(_SeqId, - #m { msg = #basic_message { guid = Guid }}, - {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> - {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}. +accumulate_ack(#m { msg = #basic_message { guid = Guid }}, + {PersistentSeqIds, GuidsByStore, AllGuids}) -> + {PersistentSeqIds, GuidsByStore, [Guid | AllGuids]}. %%---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- --spec remove_confirms(gb_set(), state()) -> state(). +-spec remove_confirms_state(gb_set(), state()) -> state(). -remove_confirms(GuidSet, State = #state { unconfirmed = UC }) -> +remove_confirms_state(GuidSet, State = #state { unconfirmed = UC }) -> State #state { unconfirmed = gb_sets:difference(UC, GuidSet) }. -- cgit v1.2.1 From 6a7c188759fe44d2446b8955058869f2da665bf3 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 13 Jan 2011 16:48:34 -0800 Subject: Continuing cleanup --- src/rabbit_mnesia_queue.erl | 159 ++++++++++++++++++++++---------------------- 1 file changed, 81 insertions(+), 78 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 72babfb1..185848e4 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -31,12 +31,12 @@ -module(rabbit_mnesia_queue). --export([start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, - purge/1, publish/3, publish_delivered/4, fetch/2, ack/2, - tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, requeue/3, len/1, - is_empty/1, dropwhile/2, set_ram_duration_target/2, ram_duration/1, - needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, - status/1]). +-export( + [start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, + tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, + idle_timeout/1, handle_pre_hibernate/1, status/1]). %%---------------------------------------------------------------------------- %% This is Take Three of a simple initial Mnesia implementation of the @@ -48,13 +48,15 @@ %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- -%% In the queue we store both messages that are pending delivery and +%% In the queue we separate messages that are pending delivery and %% messages that are pending acks. This ensures that purging (deleting -%% the former) and deletion (deleting the former and the latter) are -%% both cheap and do not require any scanning through lists of messages. +%% the former) and deletion (deleting both) are both cheap and do not +%% require any scanning through lists of messages. %% -%% Pending acks are recorded in memory as "m" records, containing the -%% messages themselves. +%% This module usually wraps messages into M records, containing the +%% messages themselves and additional information. +%% +%% Pending acks are recorded in memory as M records. %% %% All queues are durable in this version, no matter how they are %% requested. (We will need to remember the requested type in the @@ -125,9 +127,14 @@ unconfirmed :: gb_set(), on_sync :: sync() }). +-type(m() :: #m { msg :: rabbit_types:basic_message(), + seq_id :: seq_id(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). + -type(tx() :: #tx { pending_messages :: [{rabbit_types:basic_message(), - rabbit_types:message_properties()}], - pending_acks :: [[ack()]] }). + rabbit_types:message_properties()}], + pending_acks :: [[ack()]] }). -type(sync() :: #sync { acks :: [[seq_id()]], pubs :: [{message_properties_transformer(), @@ -242,13 +249,11 @@ delete_and_terminate(State) -> %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(State = #state { len = Len }) -> - {Len, persist(internal_purge_state(State))}. +purge(State = #state { len = Len }) -> {Len, persist(purge_state(State))}. --spec(internal_purge_state/1 :: (state()) -> state()). +-spec(purge_state/1 :: (state()) -> state()). -internal_purge_state(State) -> - checkState(State #state { q = queue:new(), len = 0 }). +purge_state(State) -> checkState(State #state { q = queue:new(), len = 0 }). %%---------------------------------------------------------------------------- %% publish/3 publishes a message. @@ -261,8 +266,7 @@ internal_purge_state(State) -> %% state()) %% -> state()). -publish(Msg, Props, State) -> - persist(internal_publish_state(Msg, Props, false, State)). +publish(Msg, Props, State) -> persist(publish_state(Msg, Props, false, State)). %%---------------------------------------------------------------------------- %% publish_delivered/4 is called for messages which have already been @@ -287,14 +291,14 @@ publish_delivered(true, State = #state { len = 0, next_seq_id = SeqId, unconfirmed = Unconfirmed }) -> - M = (m(Msg, SeqId, Props)) #m { is_delivered = true }, {SeqId, persist( - (record_pending_ack_state(checkM(M), State)) + (record_pending_ack_state( + checkM((m(Msg, SeqId, Props)) #m { is_delivered = true }), State)) #state { - next_seq_id = SeqId + 1, - unconfirmed = - gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) })}. + next_seq_id = SeqId + 1, + unconfirmed = + gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) })}. %%---------------------------------------------------------------------------- %% dropwhile/2 drops messages from the head of the queue while the @@ -306,22 +310,23 @@ publish_delivered(true, %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) %% -> state()). -dropwhile(Pred, State) -> persist(internal_dropwhile_state(Pred, State)). +dropwhile(Pred, State) -> persist(dropwhile_state(Pred, State)). --spec(internal_dropwhile_state/2 :: +-spec(dropwhile_state/2 :: (fun ((rabbit_types:message_properties()) -> boolean()), state()) -> state()). -internal_dropwhile_state(Pred, State) -> +%% BUG: The function should really be tail-recursive. + +dropwhile_state(Pred, State) -> {_, State1} = internal_queue_out( fun (M = #m { props = Props }, S) -> case Pred(Props) of true -> {_, S1} = internal_fetch(false, M, S), - internal_dropwhile_state(Pred, S1); + {ok, dropwhile_state(Pred, S1)}; false -> - %% message needs to go back into Q #state { q = Q } = S, {ok, S #state {q = queue:in_r(M, Q) }} end @@ -343,7 +348,7 @@ fetch(AckRequired, State) -> fun (M, S) -> internal_fetch(AckRequired, M, S) end, State), {Result, persist(State1)}. --spec internal_queue_out(fun ((#m{}, state()) -> T), state()) -> +-spec internal_queue_out(fun ((m(), state()) -> T), state()) -> {empty, state()} | T. internal_queue_out(Fun, State = #state { q = Q }) -> @@ -352,7 +357,7 @@ internal_queue_out(Fun, State = #state { q = Q }) -> {{value, M}, Qa} -> Fun(M, State #state { q = Qa }) end. --spec internal_fetch/3 :: (ack_required(), #m{}, state()) -> +-spec internal_fetch/3 :: (ack_required(), m(), state()) -> {fetch_result(), state()}. internal_fetch(AckRequired, @@ -364,13 +369,12 @@ internal_fetch(AckRequired, case AckRequired of true -> {SeqId, - record_pending_ack_state( - M #m { is_delivered = true }, State)}; + record_pending_ack_state( + M #m { is_delivered = true }, State)}; false -> {blank_ack, State} end, - Len1 = Len - 1, - {{Msg, IsDelivered, AckTag, Len1}, - checkState(State1 #state { len = Len1 })}. + {{Msg, IsDelivered, AckTag, Len - 1}, + checkState(State1 #state { len = Len - 1 })}. %%---------------------------------------------------------------------------- %% ack/2 acknowledges messages. Acktags supplied are for messages @@ -474,7 +478,7 @@ requeue(AckTags, PropsFun, State) -> {_, State1} = internal_ack( fun (#m { msg = Msg, props = Props }, S) -> - internal_publish_state(Msg, PropsFun(Props), true, S) + publish_state(Msg, PropsFun(Props), true, S) end, AckTags, State), @@ -601,7 +605,7 @@ checkState(State = #state { q = Q, len = Len }) -> %% checkM(M) checks an m, but otherwise acts as the identity function. --spec checkM/1 :: (#m{}) -> #m{}. +-spec checkM/1 :: (m()) -> m(). checkM(M) -> M. @@ -648,7 +652,7 @@ gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). -spec m(rabbit_types:basic_message(), seq_id(), rabbit_types:message_properties()) -> - #m{}. + m(). m(Msg, SeqId, Props) -> #m { msg = Msg, seq_id = SeqId, props = Props, is_delivered = false }. @@ -683,44 +687,42 @@ mnesiaTableName(QueueName) -> %%---------------------------------------------------------------------------- -spec internal_tx_commit_store_state([rabbit_types:basic_message()], - [seq_id()], - fun (() -> any()), - message_properties_transformer(), - state()) -> - state(). + [seq_id()], + fun (() -> any()), + message_properties_transformer(), + state()) -> + state(). internal_tx_commit_store_state(Pubs, - AckTags, - Fun, - PropsFun, - State = #state { on_sync = OnSync }) -> + AckTags, + Fun, + PropsFun, + State = #state { on_sync = OnSync }) -> (tx_commit_index_state( State #state { - on_sync = - #sync { acks = [AckTags], - pubs = [{PropsFun, Pubs}], - funs = [Fun] }})) - #state { on_sync = OnSync }. + on_sync = + #sync { acks = [AckTags], + pubs = [{PropsFun, Pubs}], + funs = [Fun] }})) + #state { on_sync = OnSync }. -spec tx_commit_index_state(state()) -> state(). tx_commit_index_state(State = #state { on_sync = ?BLANK_SYNC }) -> State; tx_commit_index_state(State = #state { - on_sync = #sync { acks = SAcks, - pubs = SPubs, - funs = SFuns }}) -> - Acks = lists:append(SAcks), - {_, State1} = internal_ack(Acks, State), - Pubs = [{Msg, Fun(Props)} || - {Fun, PubsN} <- lists:reverse(SPubs), - {Msg, Props} <- lists:reverse(PubsN)], + on_sync = #sync { acks = SAcks, + pubs = SPubs, + funs = SFuns }}) -> + {_, State1} = internal_ack(lists:append(SAcks), State), {_, State2} = lists:foldl( fun ({Msg, Props}, {SeqIds, S}) -> - {SeqIds, internal_publish_state(Msg, Props, false, S)} + {SeqIds, publish_state(Msg, Props, false, S)} end, {[], State1}, - Pubs), + [{Msg, Fun(Props)} || + {Fun, PubsN} <- lists:reverse(SPubs), + {Msg, Props} <- lists:reverse(PubsN)]), _ = [ Fun() || Fun <- lists:reverse(SFuns) ], State2 #state { on_sync = ?BLANK_SYNC }. @@ -728,31 +730,32 @@ tx_commit_index_state(State = #state { %% Internal gubbins for publishing %%---------------------------------------------------------------------------- --spec internal_publish_state(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - state()) -> - state(). +-spec publish_state(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). -internal_publish_state(Msg = #basic_message { guid = Guid }, +publish_state(Msg = #basic_message { guid = Guid }, Props = #message_properties { needs_confirming = NeedsConfirming }, IsDelivered, State = #state { q = Q, len = Len, next_seq_id = SeqId, unconfirmed = Unconfirmed }) -> - M = (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, - Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - State #state { q = queue:in(checkM(M), Q), - len = Len + 1, - next_seq_id = SeqId + 1, - unconfirmed = Unconfirmed1 }. + State #state { + q = queue:in( + checkM((m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }), + Q), + len = Len + 1, + next_seq_id = SeqId + 1, + unconfirmed = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) }. %%---------------------------------------------------------------------------- %% Internal gubbins for acks %%---------------------------------------------------------------------------- --spec record_pending_ack_state(#m{}, state()) -> state(). +-spec record_pending_ack_state(m(), state()) -> state(). record_pending_ack_state(M = #m { seq_id = SeqId }, State = #state { pending_ack_dict = PAD }) -> @@ -784,7 +787,7 @@ internal_ack(Fun, AckTags, State) -> accumulate_ack_init() -> {[], orddict:new(), []}. --spec accumulate_ack(#m{}, {_, _, [rabbit_guid:guid()]}) -> +-spec accumulate_ack(m(), {_, _, [rabbit_guid:guid()]}) -> {_, _, [rabbit_guid:guid()]}. accumulate_ack(#m { msg = #basic_message { guid = Guid }}, -- cgit v1.2.1 From 975b34f68ba64fdecc87c6a43dbf32beadea16cb Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sat, 15 Jan 2011 11:20:55 -0800 Subject: One last pass. --- src/rabbit_mnesia_queue.erl | 1765 +++++++++++++++++++++++++++---------------- 1 file changed, 1110 insertions(+), 655 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 185848e4..99b65ed0 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -18,11 +18,11 @@ %% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial %% Technologies LLC, and Rabbit Technologies Ltd. %% -%% Portions created by LShift Ltd are Copyright (C) 2007-2011 LShift +%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift %% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2011 Cohesive Financial Technologies +%% Copyright (C) 2007-2010 Cohesive Financial Technologies %% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2011 Rabbit Technologies Ltd. +%% (C) 2007-2010 Rabbit Technologies Ltd. %% %% All Rights Reserved. %% @@ -31,775 +31,1230 @@ -module(rabbit_mnesia_queue). --export( - [start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, - publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, - tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, - set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, - idle_timeout/1, handle_pre_hibernate/1, status/1]). +-export([init/3, terminate/1, delete_and_terminate/1, + purge/1, publish/3, publish_delivered/4, fetch/2, ack/2, + tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, + requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, + needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, + status/1]). -%%---------------------------------------------------------------------------- -%% This is Take Three of a simple initial Mnesia implementation of the -%% rabbit_backing_queue behavior. This version was created by starting -%% with rabbit_variable_queue.erl, and removing everything unneeded. -%% -%% This will eventually be structured as a plug-in instead of an extra -%% module in the middle of the server tree.... -%% ---------------------------------------------------------------------------- - -%%---------------------------------------------------------------------------- -%% In the queue we separate messages that are pending delivery and -%% messages that are pending acks. This ensures that purging (deleting -%% the former) and deletion (deleting both) are both cheap and do not -%% require any scanning through lists of messages. -%% -%% This module usually wraps messages into M records, containing the -%% messages themselves and additional information. -%% -%% Pending acks are recorded in memory as M records. -%% -%% All queues are durable in this version, no matter how they are -%% requested. (We will need to remember the requested type in the -%% future, to catch accidental redeclares.) All messages are transient -%% (non-persistent) in this interim version, in order to rip out all -%% of the old backing code before inserting the new backing -%% code. (This breaks some tests, since all messages are temporarily -%% dropped on restart.) -%% -%% May need to add code to throw away transient messages upon -%% initialization, depending on storage strategy. -%% -%%---------------------------------------------------------------------------- +-export([start/1, stop/0]). -%% BUG: I've temporarily ripped out most of the calls to Mnesia while -%% debugging problems with the Mnesia documentation. (Ask me sometimes -%% over drinks to explain how just plain wrong it is.) I've figured -%% out the real type signatures now and will soon put everything back -%% in. +%% exported for testing only +-export([start_msg_store/2, stop_msg_store/0, init/5]). -behaviour(rabbit_backing_queue). --record(state, % The in-RAM queue state - { mnesiaTableName, % An atom naming the associated Mnesia table - q, % A temporary in-RAM queue of Ms - len, % The number of msgs in the queue - next_seq_id, % The next seq_id to use to build an M - pending_ack_dict, % Map from seq_id to M, pending ack - - %% redo the following? +-record(state, + { q1, + q2, + delta, + q3, + q4, + next_seq_id, + pending_ack, + pending_ack_index, + ram_ack_index, + index_state, + msg_store_clients, + on_sync, + durable, + transient_threshold, + + len, + persistent_count, + + target_ram_count, + ram_msg_count, + ram_msg_count_prev, + ram_ack_count_prev, + ram_index_count, + out_counter, + in_counter, + rates, + msgs_on_disk, + msg_indices_on_disk, unconfirmed, + ack_out_counter, + ack_in_counter, + ack_rates + }). - on_sync +-record(rates, { egress, ingress, avg_egress, avg_ingress, timestamp }). + +-record(m, + { seq_id, + guid, + msg, + is_persistent, + is_delivered, + msg_on_disk, + index_on_disk, + props }). --record(m, % A wrapper aroung a msg - { msg, % The msg itself - seq_id, % The seq_id for the msg - props, % The message properties - is_delivered % Has the msg been delivered? (for reporting) +-record(delta, + { start_seq_id, %% start_seq_id is inclusive + count, + end_seq_id %% end_seq_id is exclusive }). --record(tx, - { pending_messages, - pending_acks }). +-record(tx, { pending_messages, pending_acks }). --record(sync, - { acks, - pubs, - funs }). +-record(sync, { acks_persistent, acks_all, pubs, funs }). + +%% When we discover, on publish, that we should write some indices to +%% disk for some betas, the IO_BATCH_SIZE sets the number of betas +%% that we must be due to write indices for before we do any work at +%% all. This is both a minimum and a maximum - we don't write fewer +%% than IO_BATCH_SIZE indices out in one go, and we don't write more - +%% we can always come back on the next publish to do more. +-define(IO_BATCH_SIZE, 64). +-define(PERSISTENT_MSG_STORE, msg_store_persistent). +-define(TRANSIENT_MSG_STORE, msg_store_transient). -include("rabbit.hrl"). %%---------------------------------------------------------------------------- -%% BUG: Restore -ifdef, -endif. - -%% -ifdef(use_specs). +-ifdef(use_specs). +-type(timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}). -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(state() :: #state { mnesiaTableName :: atom(), - q :: queue(), - len :: non_neg_integer(), - next_seq_id :: seq_id(), - pending_ack_dict :: dict(), - unconfirmed :: gb_set(), - on_sync :: sync() }). - --type(m() :: #m { msg :: rabbit_types:basic_message(), - seq_id :: seq_id(), - props :: rabbit_types:message_properties(), - is_delivered :: boolean() }). +-type(rates() :: #rates { egress :: {timestamp(), non_neg_integer()}, + ingress :: {timestamp(), non_neg_integer()}, + avg_egress :: float(), + avg_ingress :: float(), + timestamp :: timestamp() }). --type(tx() :: #tx { pending_messages :: [{rabbit_types:basic_message(), - rabbit_types:message_properties()}], - pending_acks :: [[ack()]] }). +-type(delta() :: #delta { start_seq_id :: non_neg_integer(), + count :: non_neg_integer(), + end_seq_id :: non_neg_integer() }). --type(sync() :: #sync { acks :: [[seq_id()]], +-type(sync() :: #sync { acks_persistent :: [[seq_id()]], + acks_all :: [[seq_id()]], pubs :: [{message_properties_transformer(), [rabbit_types:basic_message()]}], funs :: [fun (() -> any())] }). --include("rabbit_backing_queue_spec.hrl"). +-type(state() :: #state { + q1 :: queue(), + q2 :: bpqueue:bpqueue(), + delta :: delta(), + q3 :: bpqueue:bpqueue(), + q4 :: queue(), + next_seq_id :: seq_id(), + pending_ack :: dict(), + ram_ack_index :: gb_tree(), + index_state :: any(), + msg_store_clients :: 'undefined' | {{any(), binary()}, + {any(), binary()}}, + on_sync :: sync(), + durable :: boolean(), + + len :: non_neg_integer(), + persistent_count :: non_neg_integer(), + + transient_threshold :: non_neg_integer(), + target_ram_count :: non_neg_integer() | 'infinity', + ram_msg_count :: non_neg_integer(), + ram_msg_count_prev :: non_neg_integer(), + ram_index_count :: non_neg_integer(), + out_counter :: non_neg_integer(), + in_counter :: non_neg_integer(), + rates :: rates(), + msgs_on_disk :: gb_set(), + msg_indices_on_disk :: gb_set(), + unconfirmed :: gb_set(), + ack_out_counter :: non_neg_integer(), + ack_in_counter :: non_neg_integer(), + ack_rates :: rates() }). -%% -endif. +-include("rabbit_backing_queue_spec.hrl"). --define(BLANK_SYNC, #sync { acks = [], pubs = [], funs = [] }). +-endif. -%%---------------------------------------------------------------------------- -%% Public API -%% -%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. +-define(BLANK_DELTA, #delta { start_seq_id = undefined, + count = 0, + end_seq_id = undefined }). +-define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, + count = 0, + end_seq_id = Z }). -%%---------------------------------------------------------------------------- -%% start/1 is called on startup with a list of (durable) queue -%% names. The queues aren't being started at this point, but this call -%% allows the backing queue to perform any checking necessary for the -%% consistency of those queues, or initialise any other shared -%% resources. -%% -%% This function should be called only from outside this module. -%% -%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). +-define(BLANK_SYNC, #sync { acks_persistent = [], + acks_all = [], + pubs = [], + funs = [] }). %%---------------------------------------------------------------------------- %% Public API %%---------------------------------------------------------------------------- -start(_DurableQueues) -> ok. - -%%---------------------------------------------------------------------------- -%% stop/0 is called to tear down any state/resources. NB: -%% Implementations should not depend on this function being called on -%% shutdown and instead should hook into the rabbit supervision -%% hierarchy. -%% -%% This function should be called only from outside this module. -%% -%% -spec(stop/0 :: () -> 'ok'). - -stop() -> ok. - -%%---------------------------------------------------------------------------- -%% init/3 initializes one backing queue and its state. -%% -%% -spec(init/3 :: -%% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) -%% -> state()). -%% -%% This function should be called only from outside this module. - -%% BUG: Should do quite a bit more upon recovery.... - -%% BUG: Each queue name becomes an atom (to name a table), and atoms -%% are never GC'd - -%% BUG: Need to provide back-pressure when queue is filling up. - -init(QueueName, _IsDurable, _Recover) -> - MnesiaTableName = mnesiaTableName(QueueName), - _ = (catch mnesia:delete_table(MnesiaTableName)), - {atomic, ok} = - (catch mnesia:create_table( - MnesiaTableName, - [{record_name, state}, - {attributes, record_info(fields, state)}])), - persist(#state { mnesiaTableName = MnesiaTableName, - q = queue:new(), - len = 0, - next_seq_id = 0, - pending_ack_dict = dict:new(), - unconfirmed = gb_sets:new(), - on_sync = ?BLANK_SYNC }). - -%%---------------------------------------------------------------------------- -%% terminate/1 is called on queue shutdown when the queue isn't being -%% deleted. -%% -%% This function should be called only from outside this module. -%% -%% -spec(terminate/1 :: (state()) -> state()). +start(DurableQueues) -> + {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), + start_msg_store( + [Ref || Terms <- AllTerms, + begin + Ref = proplists:get_value(persistent_ref, Terms), + Ref =/= undefined + end], + StartFunState). + +stop() -> stop_msg_store(). + +start_msg_store(Refs, StartFunState) -> + ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, + [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), + undefined, {fun (ok) -> finished end, ok}]), + ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, + [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), + Refs, StartFunState]). + +stop_msg_store() -> + ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), + ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). + +init(QueueName, IsDurable, Recover) -> + Self = self(), + init(QueueName, IsDurable, Recover, + fun (Guids) -> msgs_written_to_disk(Self, Guids) end, + fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). + +init(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> + IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), + init(IsDurable, IndexState, 0, [], + case IsDurable of + true -> msg_store_client_init(?PERSISTENT_MSG_STORE, + MsgOnDiskFun); + false -> undefined + end, + msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); + +init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> + Terms = rabbit_queue_index:shutdown_terms(QueueName), + {PRef, TRef, Terms1} = + case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of + [] -> {proplists:get_value(persistent_ref, Terms), + proplists:get_value(transient_ref, Terms), + Terms}; + _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} + end, + PersistentClient = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, + PRef, MsgOnDiskFun), + TransientClient = rabbit_msg_store:client_init(?TRANSIENT_MSG_STORE, + TRef, undefined), + {DeltaCount, IndexState} = + rabbit_queue_index:recover( + QueueName, Terms1, + rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), + fun (Guid) -> + rabbit_msg_store:contains(Guid, PersistentClient) + end, + MsgIdxOnDiskFun), + init(true, IndexState, DeltaCount, Terms1, + PersistentClient, TransientClient). terminate(State) -> - persist(remove_pending_acks_state(tx_commit_index_state(State))). - -%%---------------------------------------------------------------------------- -%% delete_and_terminate/1 is called when the queue is terminating and -%% needs to delete all its content. The only difference between purge -%% and delete is that delete also needs to delete everything that's -%% been delivered and not ack'd. -%% -%% This function should be called only from outside this module. -%% -%% -spec(delete_and_terminate/1 :: (state()) -> state()). + State1 = #state { persistent_count = PCount, + index_state = IndexState, + msg_store_clients = {MSCStateP, MSCStateT} } = + remove_pending_ack(true, tx_commit_index(State)), + PRef = case MSCStateP of + undefined -> undefined; + _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), + rabbit_msg_store:client_ref(MSCStateP) + end, + ok = rabbit_msg_store:client_terminate(MSCStateT), + TRef = rabbit_msg_store:client_ref(MSCStateT), + Terms = [{persistent_ref, PRef}, + {transient_ref, TRef}, + {persistent_count, PCount}], + State1 #state { index_state = rabbit_queue_index:terminate( + Terms, IndexState), + msg_store_clients = undefined }. %% the only difference between purge and delete is that delete also %% needs to delete everything that's been delivered and not ack'd. - delete_and_terminate(State) -> - {_, State1} = purge(State), - persist(remove_pending_acks_state(State1)). - -%%---------------------------------------------------------------------------- -%% purge/1 removes all messages in the queue, but not messages which -%% have been fetched and are pending acks. -%% -%% This function should be called only from outside this module. -%% -%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). - -purge(State = #state { len = Len }) -> {Len, persist(purge_state(State))}. - --spec(purge_state/1 :: (state()) -> state()). - -purge_state(State) -> checkState(State #state { q = queue:new(), len = 0 }). - -%%---------------------------------------------------------------------------- -%% publish/3 publishes a message. -%% -%% This function should be called only from outside this module. -%% -%% -spec(publish/3 :: -%% (rabbit_types:basic_message(), -%% rabbit_types:message_properties(), -%% state()) -%% -> state()). - -publish(Msg, Props, State) -> persist(publish_state(Msg, Props, false, State)). + %% TODO: there is no need to interact with qi at all - which we do + %% as part of 'purge' and 'remove_pending_ack', other than + %% deleting it. + {_PurgeCount, State1} = purge(State), + State2 = #state { index_state = IndexState, + msg_store_clients = {MSCStateP, MSCStateT} } = + remove_pending_ack(false, State1), + IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), + case MSCStateP of + undefined -> ok; + _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) + end, + rabbit_msg_store:client_delete_and_terminate(MSCStateT), + State2 #state { index_state = IndexState1, + msg_store_clients = undefined }. + +purge(State = #state { q4 = Q4, + index_state = IndexState, + msg_store_clients = MSCState, + len = Len, + persistent_count = PCount }) -> + %% TODO: when there are no pending acks, which is a common case, + %% we could simply wipe the qi instead of issuing delivers and + %% acks for all the messages. + {LensByStore, IndexState1} = remove_queue_entries( + fun rabbit_misc:queue_fold/3, Q4, + orddict:new(), IndexState, MSCState), + {LensByStore1, State1 = #state { q1 = Q1, + index_state = IndexState2, + msg_store_clients = MSCState1 }} = + purge_betas_and_deltas(LensByStore, + State #state { q4 = queue:new(), + index_state = IndexState1 }), + {LensByStore2, IndexState3} = remove_queue_entries( + fun rabbit_misc:queue_fold/3, Q1, + LensByStore1, IndexState2, MSCState1), + PCount1 = PCount - find_persistent_count(LensByStore2), + {Len, State1 #state { q1 = queue:new(), + index_state = IndexState3, + len = 0, + ram_msg_count = 0, + ram_index_count = 0, + persistent_count = PCount1 }}. + +publish(Msg, Props, State) -> + {_SeqId, State1} = publish(Msg, Props, false, false, State), + State1. -%%---------------------------------------------------------------------------- -%% publish_delivered/4 is called for messages which have already been -%% passed straight out to a client. The queue will be empty for these -%% calls (i.e. saves the round trip through the backing queue). -%% -%% This function should be called only from outside this module. -%% -%% -spec(publish_delivered/4 :: -%% (ack_required(), -%% rabbit_types:basic_message(), -%% rabbit_types:message_properties(), -%% state()) -%% -> {ack(), state()}). - -publish_delivered(false, _, _, State = #state { len = 0 }) -> - {blank_ack, persist(State)}; -publish_delivered(true, - Msg = #basic_message { guid = Guid }, +publish_delivered(false, _Msg, _Props, State = #state { len = 0 }) -> + {blank_ack, State}; +publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, + guid = Guid }, Props = #message_properties { needs_confirming = NeedsConfirming }, State = #state { len = 0, - next_seq_id = SeqId, - unconfirmed = Unconfirmed }) -> - {SeqId, - persist( - (record_pending_ack_state( - checkM((m(Msg, SeqId, Props)) #m { is_delivered = true }), State)) - #state { - next_seq_id = SeqId + 1, - unconfirmed = - gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) })}. - -%%---------------------------------------------------------------------------- -%% dropwhile/2 drops messages from the head of the queue while the -%% supplied predicate returns true. -%% -%% This function should be called only from outside this module. -%% -%% -spec(dropwhile/2 :: -%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) -%% -> state()). - -dropwhile(Pred, State) -> persist(dropwhile_state(Pred, State)). - --spec(dropwhile_state/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> state()). - -%% BUG: The function should really be tail-recursive. - -dropwhile_state(Pred, State) -> - {_, State1} = - internal_queue_out( - fun (M = #m { props = Props }, S) -> - case Pred(Props) of - true -> - {_, S1} = internal_fetch(false, M, S), - {ok, dropwhile_state(Pred, S1)}; - false -> - #state { q = Q } = S, - {ok, S #state {q = queue:in_r(M, Q) }} - end - end, - State), + next_seq_id = SeqId, + out_counter = OutCount, + in_counter = InCount, + persistent_count = PCount, + durable = IsDurable, + unconfirmed = Unconfirmed }) -> + IsPersistent1 = IsDurable andalso IsPersistent, + M = (m(IsPersistent1, SeqId, Msg, Props)) #m { is_delivered = true }, + {M1, State1} = maybe_write_to_disk(false, false, M, State), + State2 = record_pending_ack(M1, State1), + PCount1 = PCount + one_if(IsPersistent1), + Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), + {SeqId, State2 #state { next_seq_id = SeqId + 1, + out_counter = OutCount + 1, + in_counter = InCount + 1, + persistent_count = PCount1, + unconfirmed = Unconfirmed1 }}. + +dropwhile(Pred, State) -> + {_OkOrEmpty, State1} = dropwhile1(Pred, State), State1. -%%---------------------------------------------------------------------------- -%% fetch/2 produces the next message. -%% -%% This function should be called only from outside this module. -%% -%% -spec(fetch/2 :: (ack_required(), state()) -> -%% {ok | fetch_result(), state()}). +dropwhile1(Pred, State) -> + internal_queue_out( + fun(M = #m { props = Props }, State1) -> + case Pred(Props) of + true -> + {_, State2} = internal_fetch(false, M, State1), + dropwhile1(Pred, State2); + false -> + %% message needs to go back into Q4 (or maybe go + %% in for the first time if it was loaded from + %% Q3). Also the msg contents might not be in + %% RAM, so read them in now + {M1, State2 = #state { q4 = Q4 }} = + read_msg(M, State1), + {ok, State2 #state {q4 = queue:in_r(M1, Q4) }} + end + end, State). fetch(AckRequired, State) -> - {Result, State1} = - internal_queue_out( - fun (M, S) -> internal_fetch(AckRequired, M, S) end, State), - {Result, persist(State1)}. - --spec internal_queue_out(fun ((m(), state()) -> T), state()) -> - {empty, state()} | T. - -internal_queue_out(Fun, State = #state { q = Q }) -> - case queue:out(Q) of - {empty, _} -> {empty, State}; - {{value, M}, Qa} -> Fun(M, State #state { q = Qa }) + internal_queue_out( + fun(M, State1) -> + %% it's possible that the message wasn't read from disk + %% at this point, so read it in. + {M1, State2} = read_msg(M, State1), + internal_fetch(AckRequired, M1, State2) + end, State). + +internal_queue_out(Fun, State = #state { q4 = Q4 }) -> + case queue:out(Q4) of + {empty, _Q4} -> + case fetch_from_q3(State) of + {empty, State1} = Result -> _ = State1, Result; + {loaded, {M, State1}} -> Fun(M, State1) + end; + {{value, M}, Q4a} -> + Fun(M, State #state { q4 = Q4a }) end. --spec internal_fetch/3 :: (ack_required(), m(), state()) -> - {fetch_result(), state()}. +read_msg(M = #m { msg = undefined, + guid = Guid, + is_persistent = IsPersistent }, + State = #state { ram_msg_count = RamMsgCount, + msg_store_clients = MSCState}) -> + {{ok, Msg = #basic_message {}}, MSCState1} = + msg_store_read(MSCState, IsPersistent, Guid), + {M #m { msg = Msg }, + State #state { ram_msg_count = RamMsgCount + 1, + msg_store_clients = MSCState1 }}; +read_msg(M, State) -> + {M, State}. internal_fetch(AckRequired, - M = #m { msg = Msg, - seq_id = SeqId, - is_delivered = IsDelivered }, - State = #state {len = Len }) -> - {AckTag, State1} = - case AckRequired of - true -> - {SeqId, - record_pending_ack_state( - M #m { is_delivered = true }, State)}; - false -> {blank_ack, State} + M = #m { + seq_id = SeqId, + guid = Guid, + msg = Msg, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk }, + State = #state {ram_msg_count = RamMsgCount, + out_counter = OutCount, + index_state = IndexState, + msg_store_clients = MSCState, + len = Len, + persistent_count = PCount }) -> + %% 1. Mark it delivered if necessary + IndexState1 = maybe_write_delivered( + IndexOnDisk andalso not IsDelivered, + SeqId, IndexState), + + %% 2. Remove from msg_store and queue index, if necessary + Rem = fun () -> + ok = msg_store_remove(MSCState, IsPersistent, [Guid]) + end, + Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, + IndexState2 = + case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of + {false, true, false, _} -> Rem(), IndexState1; + {false, true, true, _} -> Rem(), Ack(); + { true, true, true, false} -> Ack(); + _ -> IndexState1 end, - {{Msg, IsDelivered, AckTag, Len - 1}, - checkState(State1 #state { len = Len - 1 })}. -%%---------------------------------------------------------------------------- -%% ack/2 acknowledges messages. Acktags supplied are for messages -%% which can now be forgotten about. Must return 1 guid per Ack, in -%% the same order as Acks. -%% -%% This function should be called only from outside this module. -%% -%% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). + %% 3. If an ack is required, add something sensible to PA + {AckTag, State1} = case AckRequired of + true -> StateN = record_pending_ack( + M #m { + is_delivered = true }, State), + {SeqId, StateN}; + false -> {blank_ack, State} + end, + + PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), + Len1 = Len - 1, + RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), + + {{Msg, IsDelivered, AckTag, Len1}, + State1 #state { ram_msg_count = RamMsgCount1, + out_counter = OutCount + 1, + index_state = IndexState2, + len = Len1, + persistent_count = PCount1 }}. ack(AckTags, State) -> - {Guids, State1} = internal_ack(AckTags, State), - {Guids, persist(State1)}. - --spec(internal_ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). - -internal_ack(AckTags, State) -> {Guids, State1} = - internal_ack( - fun (#m { msg = #basic_message { guid = Guid }}, S) -> - remove_confirms_state(gb_sets:singleton(Guid), S) - end, - AckTags, - State), - {Guids, checkState(State1)}. - -%%---------------------------------------------------------------------------- -%% tx_publish/4 is a publish, but in the context of a transaction. -%% -%% This function should be called only from outside this module. -%% -%% -spec(tx_publish/4 :: -%% (rabbit_types:txn(), -%% rabbit_types:basic_message(), -%% rabbit_types:message_properties(), -%% state()) -%% -> state()). - -tx_publish(Txn, Msg, Props, State) -> + ack(fun msg_store_remove/3, + fun ({_IsPersistent, Guid, _Props}, State1) -> + remove_confirms(gb_sets:singleton(Guid), State1); + (#m{msg = #basic_message { guid = Guid }}, State1) -> + remove_confirms(gb_sets:singleton(Guid), State1) + end, + AckTags, State), + {Guids, State1}. + +tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, Props, + State = #state { durable = IsDurable, + msg_store_clients = MSCState }) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, Props} | Pubs] }), - persist(State). - -%%---------------------------------------------------------------------------- -%% tx_ack/3 acks, but in the context of a transaction. -%% -%% This function should be called only from outside this module. -%% -%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). + _ = case IsPersistent andalso IsDurable of + true -> M = m(true, undefined, Msg, Props), + #m { msg_on_disk = true } = + maybe_write_msg_to_disk(false, M, MSCState); + false -> ok + end, + State. tx_ack(Txn, AckTags, State) -> Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), - persist(State). - -%%---------------------------------------------------------------------------- -%% tx_rollback/2 undoes anything which has been done in the context of -%% the specified transaction. -%% -%% This function should be called only from outside this module. -%% -%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + State. -tx_rollback(Txn, State) -> - #tx { pending_acks = AckTags } = lookup_tx(Txn), +tx_rollback(Txn, State = #state { durable = IsDurable, + msg_store_clients = MSCState }) -> + #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), - {lists:append(AckTags), persist(State)}. - -%%---------------------------------------------------------------------------- -%% tx_commit/4 commits a transaction. The Fun passed in must be called -%% once the messages have really been commited. This CPS permits the -%% possibility of commit coalescing. -%% -%% This function should be called only from outside this module. -%% -%% -spec(tx_commit/4 :: -%% (rabbit_types:txn(), -%% fun (() -> any()), -%% message_properties_transformer(), -%% state()) -%% -> {[ack()], state()}). - -tx_commit(Txn, Fun, PropsFun, State) -> + ok = case IsDurable of + true -> msg_store_remove(MSCState, true, persistent_guids(Pubs)); + false -> ok + end, + {lists:append(AckTags), State}. + +tx_commit(Txn, Fun, PropsFun, + State = #state { durable = IsDurable, + msg_store_clients = MSCState }) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), + PersistentGuids = persistent_guids(Pubs), + HasPersistentPubs = PersistentGuids =/= [], {AckTags1, - persist( - internal_tx_commit_store_state(Pubs, AckTags1, Fun, PropsFun, State))}. - -%%---------------------------------------------------------------------------- -%% requeue/3 reinserts messages into the queue which have already been -%% delivered and were pending acknowledgement. -%% -%% This function should be called only from outside this module. -%% -%% -spec(requeue/3 :: -%% ([ack()], message_properties_transformer(), state()) -> state()). + case IsDurable andalso HasPersistentPubs of + true -> ok = msg_store_sync( + MSCState, true, PersistentGuids, + msg_store_callback(PersistentGuids, Pubs, AckTags1, + Fun, PropsFun)), + State; + false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, + Fun, PropsFun, State) + end}. requeue(AckTags, PropsFun, State) -> - {_, State1} = - internal_ack( - fun (#m { msg = Msg, props = Props }, S) -> - publish_state(Msg, PropsFun(Props), true, S) - end, - AckTags, - State), - persist(State1). - -%%---------------------------------------------------------------------------- -%% len/1 returns the queue length. -%% -%% -spec(len/1 :: (state()) -> non_neg_integer()). - -len(State = #state { len = Len }) -> _ = persist(State), Len. + {_Guids, State1} = + ack(fun msg_store_release/3, + fun (#m { msg = Msg, props = Props }, State1) -> + {_SeqId, State2} = publish(Msg, PropsFun(Props), + true, false, State1), + State2; + ({IsPersistent, Guid, Props}, State1) -> + #state { msg_store_clients = MSCState } = State1, + {{ok, Msg = #basic_message{}}, MSCState1} = + msg_store_read(MSCState, IsPersistent, Guid), + State2 = State1 #state { msg_store_clients = MSCState1 }, + {_SeqId, State3} = publish(Msg, PropsFun(Props), + true, true, State2), + State3 + end, + AckTags, State), + State1. -%%---------------------------------------------------------------------------- -%% is_empty/1 returns 'true' if the queue is empty, and 'false' -%% otherwise. -%% -%% -spec(is_empty/1 :: (state()) -> boolean()). +len(#state { len = Len }) -> Len. is_empty(State) -> 0 == len(State). -%%---------------------------------------------------------------------------- -%% For the next two functions, the assumption is that you're -%% monitoring something like the ingress and egress rates of the -%% queue. The RAM duration is thus the length of time represented by -%% the messages held in RAM given the current rates. If you want to -%% ignore all of this stuff, then do so, and return 0 in -%% ram_duration/1. - -%% set_ram_duration_target states that the target is to have no more -%% messages in RAM than indicated by the duration and the current -%% queue rates. -%% -%% This function should be called only from outside this module. -%% -%% -spec(set_ram_duration_target/2 :: -%% (('undefined' | 'infinity' | number()), state()) -%% -> state()). - -set_ram_duration_target(_DurationTarget, State) -> persist(State). - -%%---------------------------------------------------------------------------- -%% ram_duration/1 optionally recalculates the duration internally -%% (likely to be just update your internal rates), and report how many -%% seconds the messages in RAM represent given the current rates of -%% the queue. -%% -%% This function should be called only from outside this module. -%% -%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). - -ram_duration(State) -> {0, persist(State)}. - -%%---------------------------------------------------------------------------- -%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be -%% called as soon as the queue process can manage (either on an empty -%% mailbox, or when a timer fires), and 'false' otherwise. -%% -%% This function should be called only from outside this module. -%% -%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). - -needs_idle_timeout(State = #state { on_sync = ?BLANK_SYNC }) -> - _ = persist(State), false; -needs_idle_timeout(State) -> _ = persist(State), true. - -%%---------------------------------------------------------------------------- -%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be -%% called as soon as the queue process can manage (either on an empty -%% mailbox, or when a timer fires), and 'false' otherwise. -%% -%% This function should be called only from outside this module. -%% -%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). - -idle_timeout(State) -> persist(tx_commit_index_state(State)). - -%%---------------------------------------------------------------------------- -%% handle_pre_hibernate/1 is called immediately before the queue -%% hibernates. -%% -%% This function should be called only from outside this module. -%% -%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). +set_ram_duration_target( + DurationTarget, State = #state { + rates = #rates { avg_egress = AvgEgressRate, + avg_ingress = AvgIngressRate }, + ack_rates = #rates { avg_egress = AvgAckEgressRate, + avg_ingress = AvgAckIngressRate }, + target_ram_count = TargetRamCount }) -> + Rate = + AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, + TargetRamCount1 = + case DurationTarget of + infinity -> infinity; + _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec + end, + State1 = State #state { target_ram_count = TargetRamCount1 }, + case TargetRamCount1 == infinity orelse + (TargetRamCount =/= infinity andalso + TargetRamCount1 >= TargetRamCount) of + true -> State1; + false -> State1 + end. -handle_pre_hibernate(State) -> persist(State). +ram_duration(State = #state { + rates = #rates { timestamp = Timestamp, + egress = Egress, + ingress = Ingress } = Rates, + ack_rates = #rates { timestamp = AckTimestamp, + egress = AckEgress, + ingress = AckIngress } = ARates, + in_counter = InCount, + out_counter = OutCount, + ack_in_counter = AckInCount, + ack_out_counter = AckOutCount, + ram_msg_count = RamMsgCount, + ram_msg_count_prev = RamMsgCountPrev, + ram_ack_index = RamAckIndex, + ram_ack_count_prev = RamAckCountPrev }) -> + Now = now(), + {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), + {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), + + {AvgAckEgressRate, AckEgress1} = + update_rate(Now, AckTimestamp, AckOutCount, AckEgress), + {AvgAckIngressRate, AckIngress1} = + update_rate(Now, AckTimestamp, AckInCount, AckIngress), + + RamAckCount = gb_trees:size(RamAckIndex), + + Duration = %% msgs+acks / (msgs+acks/sec) == sec + case AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso + AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0 of + true -> infinity; + false -> (RamMsgCountPrev + RamMsgCount + + RamAckCount + RamAckCountPrev) / + (4 * (AvgEgressRate + AvgIngressRate + + AvgAckEgressRate + AvgAckIngressRate)) + end, -%%---------------------------------------------------------------------------- -%% status/1 exists for debugging purposes, to be able to expose state -%% via rabbitmqctl list_queues backing_queue_status -%% -%% This function should be called only from outside this module. -%% -%% -spec(status/1 :: (state()) -> [{atom(), any()}]). - -status(State = #state { mnesiaTableName = MnesiaTableName, - q = Q, - len = Len, - next_seq_id = NextSeqId, - pending_ack_dict = PAD, - on_sync = #sync { funs = Funs }}) -> - _ = persist(State), - [{mnesiaTableName, MnesiaTableName}, - {q, queue:len(Q)}, - {len, Len}, - {next_seq_id, NextSeqId}, - {pending_acks, dict:size(PAD)}, - {outstanding_txns, length(Funs)}]. + {Duration, State #state { + rates = Rates #rates { + egress = Egress1, + ingress = Ingress1, + avg_egress = AvgEgressRate, + avg_ingress = AvgIngressRate, + timestamp = Now }, + ack_rates = ARates #rates { + egress = AckEgress1, + ingress = AckIngress1, + avg_egress = AvgAckEgressRate, + avg_ingress = AvgAckIngressRate, + timestamp = Now }, + in_counter = 0, + out_counter = 0, + ack_in_counter = 0, + ack_out_counter = 0, + ram_msg_count_prev = RamMsgCount, + ram_ack_count_prev = RamAckCount }}. + +needs_idle_timeout(#state { on_sync = ?BLANK_SYNC }) -> false; +needs_idle_timeout(_State) -> true. + +idle_timeout(State) -> tx_commit_index(State). + +handle_pre_hibernate(State = #state { index_state = IndexState }) -> + State #state { index_state = rabbit_queue_index:flush(IndexState) }. + +status(#state { + q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, + len = Len, + pending_ack = PA, + ram_ack_index = RAI, + on_sync = #sync { funs = From }, + target_ram_count = TargetRamCount, + ram_msg_count = RamMsgCount, + ram_index_count = RamIndexCount, + next_seq_id = NextSeqId, + persistent_count = PersistentCount, + rates = #rates { avg_egress = AvgEgressRate, + avg_ingress = AvgIngressRate }, + ack_rates = #rates { avg_egress = AvgAckEgressRate, + avg_ingress = AvgAckIngressRate } }) -> + [ {q1 , queue:len(Q1)}, + {q2 , bpqueue:len(Q2)}, + {delta , Delta}, + {q3 , bpqueue:len(Q3)}, + {q4 , queue:len(Q4)}, + {len , Len}, + {pending_acks , dict:size(PA)}, + {outstanding_txns , length(From)}, + {target_ram_count , TargetRamCount}, + {ram_msg_count , RamMsgCount}, + {ram_ack_count , gb_trees:size(RAI)}, + {ram_index_count , RamIndexCount}, + {next_seq_id , NextSeqId}, + {persistent_count , PersistentCount}, + {avg_ingress_rate , AvgIngressRate}, + {avg_egress_rate , AvgEgressRate}, + {avg_ack_ingress_rate, AvgAckIngressRate}, + {avg_ack_egress_rate , AvgAckEgressRate} ]. %%---------------------------------------------------------------------------- %% Minor helpers %%---------------------------------------------------------------------------- -%% checkState(State) checks a state, but otherwise acts as the -%% identity function. - --spec checkState/1 :: (state()) -> state(). - -checkState(State = #state { q = Q, len = Len }) -> - E4 = queue:is_empty(Q), - LZ = Len == 0, - true = LZ == E4, - true = Len >= 0, - State. - -%% checkM(M) checks an m, but otherwise acts as the identity function. +one_if(true ) -> 1; +one_if(false) -> 0. --spec checkM/1 :: (m()) -> m(). +cons_if(true, E, L) -> [E | L]; +cons_if(false, _E, L) -> L. -checkM(M) -> M. - -%% retrieve(State) retrieve the queue state from Mnesia. -%% -%% BUG: This should really be done as part of a per-operation Mnesia -%% transaction! - --spec(retrieve/1 :: (state()) -> state()). - -retrieve(State = #state { mnesiaTableName = MnesiaTableName}) -> - case (catch mnesia:dirty_read(MnesiaTableName, state)) of - {atomic, [State1]} -> State1; - Other -> - rabbit_log:error("*** retrieve failed: ~p", [Other]), - State - end. - -%% persist(State) checks a queue state and naively persists it -%% into Mnesia. We'll want something just a little more sophisticated -%% in the near future.... -%% -%% BUG: Extra specs should be moved to top. - --spec(persist/1 :: (state()) -> state()). - -persist(State = #state { mnesiaTableName = MnesiaTableName }) -> - _ = checkState(State), - case (catch mnesia:dirty_write(MnesiaTableName, State)) of - ok -> ok; - Other -> - rabbit_log:error("*** persist failed: ~p", [Other]) - end, - State. - --spec gb_sets_maybe_insert(boolean(), rabbit_guid:guid(), gb_set()) -> - gb_set(). - -%% When requeueing, we re-add a guid to the unconfirmed set. - -gb_sets_maybe_insert(false, _, Set) -> Set; +gb_sets_maybe_insert(false, _Val, Set) -> Set; +%% when requeueing, we re-add a guid to the unconfirmed set gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). --spec m(rabbit_types:basic_message(), - seq_id(), - rabbit_types:message_properties()) -> - m(). - -m(Msg, SeqId, Props) -> - #m { msg = Msg, seq_id = SeqId, props = Props, is_delivered = false }. - --spec lookup_tx(rabbit_types:txn()) -> tx(). - -lookup_tx(Txn) -> - case get({txn, Txn}) of - undefined -> #tx { pending_messages = [], pending_acks = [] }; - V -> V - end. - --spec store_tx(rabbit_types:txn(), tx()) -> ok. - -store_tx(Txn, Tx) -> put({txn, Txn}, Tx), ok. - --spec erase_tx(rabbit_types:txn()) -> ok. - -erase_tx(Txn) -> erase({txn, Txn}), ok. - -%% Convert a queue name (a record) into an Mnesia table name (an atom). - -%% TODO: Import correct type. +m(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, + Props) -> + #m { seq_id = SeqId, + guid = Guid, + msg = Msg, + is_persistent = IsPersistent, + is_delivered = false, + msg_on_disk = false, + index_on_disk = false, + props = Props }. + +with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> + {Result, MSCStateP1} = Fun(MSCStateP), + {Result, {MSCStateP1, MSCStateT}}; +with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> + {Result, MSCStateT1} = Fun(MSCStateT), + {Result, {MSCStateP, MSCStateT1}}. + +with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> + {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, + fun (MSCState1) -> + {Fun(MSCState1), MSCState1} + end), + Res. + +msg_store_client_init(MsgStore, MsgOnDiskFun) -> + rabbit_msg_store:client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). + +msg_store_write(MSCState, IsPersistent, Guid, Msg) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MSCState1) -> rabbit_msg_store:write(Guid, Msg, MSCState1) end). + +msg_store_read(MSCState, IsPersistent, Guid) -> + with_msg_store_state( + MSCState, IsPersistent, + fun (MSCState1) -> rabbit_msg_store:read(Guid, MSCState1) end). + +msg_store_remove(MSCState, IsPersistent, Guids) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MCSState1) -> rabbit_msg_store:remove(Guids, MCSState1) end). + +msg_store_release(MSCState, IsPersistent, Guids) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MCSState1) -> rabbit_msg_store:release(Guids, MCSState1) end). + +msg_store_sync(MSCState, IsPersistent, Guids, Callback) -> + with_immutable_msg_store_state( + MSCState, IsPersistent, + fun (MSCState1) -> rabbit_msg_store:sync(Guids, Callback, MSCState1) end). + +maybe_write_delivered(false, _SeqId, IndexState) -> + IndexState; +maybe_write_delivered(true, SeqId, IndexState) -> + rabbit_queue_index:deliver([SeqId], IndexState). + +lookup_tx(Txn) -> case get({txn, Txn}) of + undefined -> #tx { pending_messages = [], + pending_acks = [] }; + V -> V + end. + +store_tx(Txn, Tx) -> put({txn, Txn}, Tx). + +erase_tx(Txn) -> erase({txn, Txn}). + +persistent_guids(Pubs) -> + [Guid || {#basic_message { guid = Guid, + is_persistent = true }, _Props} <- Pubs]. + +betas_from_index_entries(List, TransientThreshold, IndexState) -> + {Filtered, Delivers, Acks} = + lists:foldr( + fun ({Guid, SeqId, Props, IsPersistent, IsDelivered}, + {Filtered1, Delivers1, Acks1}) -> + case SeqId < TransientThreshold andalso not IsPersistent of + true -> {Filtered1, + cons_if(not IsDelivered, SeqId, Delivers1), + [SeqId | Acks1]}; + false -> {[#m { msg = undefined, + guid = Guid, + seq_id = SeqId, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_on_disk = true, + index_on_disk = true, + props = Props + } | Filtered1], + Delivers1, + Acks1} + end + end, {[], [], []}, List), + {bpqueue:from_list([{true, Filtered}]), + rabbit_queue_index:ack(Acks, + rabbit_queue_index:deliver(Delivers, IndexState))}. --spec mnesiaTableName(_) -> atom(). +beta_fold(Fun, Init, Q) -> + bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). -mnesiaTableName(QueueName) -> - list_to_atom(lists:flatten(io_lib:format("~p", [QueueName]))). +update_rate(Now, Then, Count, {OThen, OCount}) -> + %% avg over the current period and the previous + {1000000.0 * (Count + OCount) / timer:now_diff(Now, OThen), {Then, Count}}. %%---------------------------------------------------------------------------- %% Internal major helpers for Public API %%---------------------------------------------------------------------------- --spec internal_tx_commit_store_state([rabbit_types:basic_message()], - [seq_id()], - fun (() -> any()), - message_properties_transformer(), - state()) -> - state(). - -internal_tx_commit_store_state(Pubs, - AckTags, - Fun, - PropsFun, - State = #state { on_sync = OnSync }) -> - (tx_commit_index_state( - State #state { - on_sync = - #sync { acks = [AckTags], - pubs = [{PropsFun, Pubs}], - funs = [Fun] }})) - #state { on_sync = OnSync }. - --spec tx_commit_index_state(state()) -> state(). - -tx_commit_index_state(State = #state { on_sync = ?BLANK_SYNC }) -> State; -tx_commit_index_state(State = #state { - on_sync = #sync { acks = SAcks, - pubs = SPubs, - funs = SFuns }}) -> - {_, State1} = internal_ack(lists:append(SAcks), State), - {_, State2} = +init(IsDurable, IndexState, DeltaCount, Terms, + PersistentClient, TransientClient) -> + {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), + + DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), + Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of + true -> ?BLANK_DELTA; + false -> #delta { start_seq_id = LowSeqId, + count = DeltaCount1, + end_seq_id = NextSeqId } + end, + Now = now(), + State = #state { + q1 = queue:new(), + q2 = bpqueue:new(), + delta = Delta, + q3 = bpqueue:new(), + q4 = queue:new(), + next_seq_id = NextSeqId, + pending_ack = dict:new(), + ram_ack_index = gb_trees:empty(), + index_state = IndexState1, + msg_store_clients = {PersistentClient, TransientClient}, + on_sync = ?BLANK_SYNC, + durable = IsDurable, + transient_threshold = NextSeqId, + + len = DeltaCount1, + persistent_count = DeltaCount1, + + target_ram_count = infinity, + ram_msg_count = 0, + ram_msg_count_prev = 0, + ram_ack_count_prev = 0, + ram_index_count = 0, + out_counter = 0, + in_counter = 0, + rates = blank_rate(Now, DeltaCount1), + msgs_on_disk = gb_sets:new(), + msg_indices_on_disk = gb_sets:new(), + unconfirmed = gb_sets:new(), + ack_out_counter = 0, + ack_in_counter = 0, + ack_rates = blank_rate(Now, 0) }, + maybe_deltas_to_betas(State). + +blank_rate(Timestamp, IngressLength) -> + #rates { egress = {Timestamp, 0}, + ingress = {Timestamp, IngressLength}, + avg_egress = 0.0, + avg_ingress = 0.0, + timestamp = Timestamp }. + +msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, PropsFun) -> + Self = self(), + F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( + Self, fun (StateN) -> {[], tx_commit_post_msg_store( + true, Pubs, AckTags, + Fun, PropsFun, StateN)} + end) + end, + fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( + fun () -> remove_persistent_messages( + PersistentGuids) + end, F) + end) + end. + +remove_persistent_messages(Guids) -> + PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, undefined), + ok = rabbit_msg_store:remove(Guids, PersistentClient), + rabbit_msg_store:client_delete_and_terminate(PersistentClient). + +tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, PropsFun, + State = #state { + on_sync = OnSync = #sync { + acks_persistent = SPAcks, + acks_all = SAcks, + pubs = SPubs, + funs = SFuns }, + pending_ack = PA, + durable = IsDurable }) -> + PersistentAcks = + case IsDurable of + true -> [AckTag || AckTag <- AckTags, + case dict:fetch(AckTag, PA) of + #m {} -> false; + {IsPersistent, _Guid, _Props} -> + IsPersistent + end]; + false -> [] + end, + case IsDurable andalso (HasPersistentPubs orelse PersistentAcks =/= []) of + true -> State #state { + on_sync = #sync { + acks_persistent = [PersistentAcks | SPAcks], + acks_all = [AckTags | SAcks], + pubs = [{PropsFun, Pubs} | SPubs], + funs = [Fun | SFuns] }}; + false -> State1 = tx_commit_index( + State #state { + on_sync = #sync { + acks_persistent = [], + acks_all = [AckTags], + pubs = [{PropsFun, Pubs}], + funs = [Fun] } }), + State1 #state { on_sync = OnSync } + end. + +tx_commit_index(State = #state { on_sync = ?BLANK_SYNC }) -> + State; +tx_commit_index(State = #state { on_sync = #sync { + acks_persistent = SPAcks, + acks_all = SAcks, + pubs = SPubs, + funs = SFuns }, + durable = IsDurable }) -> + PAcks = lists:append(SPAcks), + Acks = lists:append(SAcks), + {_Guids, NewState} = ack(Acks, State), + Pubs = [{Msg, Fun(Props)} || {Fun, PubsN} <- lists:reverse(SPubs), + {Msg, Props} <- lists:reverse(PubsN)], + {SeqIds, State1 = #state { index_state = IndexState }} = lists:foldl( - fun ({Msg, Props}, {SeqIds, S}) -> - {SeqIds, publish_state(Msg, Props, false, S)} - end, - {[], State1}, - [{Msg, Fun(Props)} || - {Fun, PubsN} <- lists:reverse(SPubs), - {Msg, Props} <- lists:reverse(PubsN)]), + fun ({Msg = #basic_message { is_persistent = IsPersistent }, + Props}, + {SeqIdsAcc, State2}) -> + IsPersistent1 = IsDurable andalso IsPersistent, + {SeqId, State3} = + publish(Msg, Props, false, IsPersistent1, State2), + {cons_if(IsPersistent1, SeqId, SeqIdsAcc), State3} + end, {PAcks, NewState}, Pubs), + IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), _ = [ Fun() || Fun <- lists:reverse(SFuns) ], - State2 #state { on_sync = ?BLANK_SYNC }. + State1 #state { index_state = IndexState1, on_sync = ?BLANK_SYNC }. + +purge_betas_and_deltas(LensByStore, + State = #state { q3 = Q3, + index_state = IndexState, + msg_store_clients = MSCState }) -> + case bpqueue:is_empty(Q3) of + true -> {LensByStore, State}; + false -> {LensByStore1, IndexState1} = + remove_queue_entries(fun beta_fold/3, Q3, + LensByStore, IndexState, MSCState), + purge_betas_and_deltas(LensByStore1, + maybe_deltas_to_betas( + State #state { + q3 = bpqueue:new(), + index_state = IndexState1 })) + end. + +remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> + {GuidsByStore, Delivers, Acks} = + Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), + ok = orddict:fold(fun (IsPersistent, Guids, ok) -> + msg_store_remove(MSCState, IsPersistent, Guids) + end, ok, GuidsByStore), + {sum_guids_by_store_to_len(LensByStore, GuidsByStore), + rabbit_queue_index:ack(Acks, + rabbit_queue_index:deliver(Delivers, IndexState))}. + +remove_queue_entries1( + #m { guid = Guid, + seq_id = SeqId, + is_delivered = IsDelivered, + msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk, + is_persistent = IsPersistent }, + {GuidsByStore, Delivers, Acks}) -> + {case MsgOnDisk of + true -> rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore); + false -> GuidsByStore + end, + cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), + cons_if(IndexOnDisk, SeqId, Acks)}. + +sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> + orddict:fold( + fun (IsPersistent, Guids, LensByStore1) -> + orddict:update_counter(IsPersistent, length(Guids), LensByStore1) + end, LensByStore, GuidsByStore). %%---------------------------------------------------------------------------- %% Internal gubbins for publishing %%---------------------------------------------------------------------------- --spec publish_state(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - state()) -> - state(). - -publish_state(Msg = #basic_message { guid = Guid }, +publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, Props = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, - State = #state { q = Q, - len = Len, - next_seq_id = SeqId, - unconfirmed = Unconfirmed }) -> - State #state { - q = queue:in( - checkM((m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }), - Q), - len = Len + 1, - next_seq_id = SeqId + 1, - unconfirmed = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) }. + IsDelivered, MsgOnDisk, + State = #state { q1 = Q1, q3 = Q3, q4 = Q4, + next_seq_id = SeqId, + len = Len, + in_counter = InCount, + persistent_count = PCount, + durable = IsDurable, + ram_msg_count = RamMsgCount, + unconfirmed = Unconfirmed }) -> + IsPersistent1 = IsDurable andalso IsPersistent, + M = (m(IsPersistent1, SeqId, Msg, Props)) + #m { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, + {M1, State1} = maybe_write_to_disk(false, false, M, State), + State2 = case bpqueue:is_empty(Q3) of + false -> State1 #state { q1 = queue:in(M1, Q1) }; + true -> State1 #state { q4 = queue:in(M1, Q4) } + end, + PCount1 = PCount + one_if(IsPersistent1), + Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), + {SeqId, State2 #state { next_seq_id = SeqId + 1, + len = Len + 1, + in_counter = InCount + 1, + persistent_count = PCount1, + ram_msg_count = RamMsgCount + 1, + unconfirmed = Unconfirmed1 }}. + +maybe_write_msg_to_disk(_Force, M = #m { msg_on_disk = true }, _MSCState) -> + M; +maybe_write_msg_to_disk(Force, M = #m { + msg = Msg, guid = Guid, + is_persistent = IsPersistent }, MSCState) + when Force orelse IsPersistent -> + Msg1 = Msg #basic_message { + %% don't persist any recoverable decoded properties + content = rabbit_binary_parser:clear_decoded_content( + Msg #basic_message.content)}, + ok = msg_store_write(MSCState, IsPersistent, Guid, Msg1), + M #m { msg_on_disk = true }; +maybe_write_msg_to_disk(_Force, M, _MSCState) -> M. + +maybe_write_index_to_disk(_Force, + M = #m { index_on_disk = true }, IndexState) -> + true = M #m.msg_on_disk, %% ASSERTION + {M, IndexState}; +maybe_write_index_to_disk(Force, + M = #m { + guid = Guid, + seq_id = SeqId, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + props = Props}, + IndexState) + when Force orelse IsPersistent -> + true = M #m.msg_on_disk, %% ASSERTION + IndexState1 = rabbit_queue_index:publish( + Guid, SeqId, Props, IsPersistent, IndexState), + {M #m { index_on_disk = true }, + maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; +maybe_write_index_to_disk(_Force, M, IndexState) -> + {M, IndexState}. + +maybe_write_to_disk(ForceMsg, ForceIndex, M, + State = #state { index_state = IndexState, + msg_store_clients = MSCState }) -> + M1 = maybe_write_msg_to_disk(ForceMsg, M, MSCState), + {M2, IndexState1} = + maybe_write_index_to_disk(ForceIndex, M1, IndexState), + {M2, State #state { index_state = IndexState1 }}. %%---------------------------------------------------------------------------- %% Internal gubbins for acks %%---------------------------------------------------------------------------- --spec record_pending_ack_state(m(), state()) -> state(). - -record_pending_ack_state(M = #m { seq_id = SeqId }, - State = #state { pending_ack_dict = PAD }) -> - State #state { pending_ack_dict = dict:store(SeqId, M, PAD) }. - --spec remove_pending_acks_state(state()) -> state(). - -remove_pending_acks_state(State) -> - checkState(State #state { pending_ack_dict = dict:new() }). - --spec internal_ack(fun (({_, _, _}, state()) -> state()), [any()], state()) -> - {[rabbit_guid:guid()], state()}. +record_pending_ack(#m { seq_id = SeqId, + guid = Guid, + is_persistent = IsPersistent, + msg_on_disk = MsgOnDisk, + props = Props } = M, + State = #state { pending_ack = PA, + ram_ack_index = RAI, + ack_in_counter = AckInCount}) -> + {AckEntry, RAI1} = + case MsgOnDisk of + true -> {{IsPersistent, Guid, Props}, RAI}; + false -> {M, gb_trees:insert(SeqId, Guid, RAI)} + end, + PA1 = dict:store(SeqId, AckEntry, PA), + State #state { pending_ack = PA1, + ram_ack_index = RAI1, + ack_in_counter = AckInCount + 1}. + +remove_pending_ack(KeepPersistent, + State = #state { pending_ack = PA, + index_state = IndexState, + msg_store_clients = MSCState }) -> + {PersistentSeqIds, GuidsByStore, _AllGuids} = + dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), + State1 = State #state { pending_ack = dict:new(), + ram_ack_index = gb_trees:empty() }, + case KeepPersistent of + true -> case orddict:find(false, GuidsByStore) of + error -> State1; + {ok, Guids} -> ok = msg_store_remove(MSCState, false, + Guids), + State1 + end; + false -> IndexState1 = + rabbit_queue_index:ack(PersistentSeqIds, IndexState), + _ = [ok = msg_store_remove(MSCState, IsPersistent, Guids) + || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + State1 #state { index_state = IndexState1 } + end. -internal_ack(_Fun, [], State) -> {[], State}; -internal_ack(Fun, AckTags, State) -> - {{_, _, AllGuids}, State1} = +ack(_MsgStoreFun, _Fun, [], State) -> + {[], State}; +ack(MsgStoreFun, Fun, AckTags, State) -> + {{PersistentSeqIds, GuidsByStore, AllGuids}, + State1 = #state { index_state = IndexState, + msg_store_clients = MSCState, + persistent_count = PCount, + ack_out_counter = AckOutCount }} = lists:foldl( - fun (SeqId, {Acc, S = #state { pending_ack_dict = PAD }}) -> - AckEntry = dict:fetch(SeqId, PAD), - {accumulate_ack(AckEntry, Acc), - Fun(AckEntry, - S #state { pending_ack_dict = dict:erase(SeqId, PAD)})} - end, - {accumulate_ack_init(), State}, - AckTags), - {lists:reverse(AllGuids), State1}. - --spec accumulate_ack_init() -> {[], [], []}. + fun (SeqId, {Acc, State2 = #state { pending_ack = PA, + ram_ack_index = RAI }}) -> + AckEntry = dict:fetch(SeqId, PA), + {accumulate_ack(SeqId, AckEntry, Acc), + Fun(AckEntry, State2 #state { + pending_ack = dict:erase(SeqId, PA), + ram_ack_index = + gb_trees:delete_any(SeqId, RAI)})} + end, {accumulate_ack_init(), State}, AckTags), + IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), + _ = [ok = MsgStoreFun(MSCState, IsPersistent, Guids) + || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( + orddict:new(), GuidsByStore)), + {lists:reverse(AllGuids), + State1 #state { index_state = IndexState1, + persistent_count = PCount1, + ack_out_counter = AckOutCount + length(AckTags) }}. accumulate_ack_init() -> {[], orddict:new(), []}. --spec accumulate_ack(m(), {_, _, [rabbit_guid:guid()]}) -> - {_, _, [rabbit_guid:guid()]}. - -accumulate_ack(#m { msg = #basic_message { guid = Guid }}, - {PersistentSeqIds, GuidsByStore, AllGuids}) -> - {PersistentSeqIds, GuidsByStore, [Guid | AllGuids]}. +accumulate_ack(_SeqId, #m { is_persistent = false, %% ASSERTIONS + msg_on_disk = false, + index_on_disk = false, + guid = Guid }, + {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> + {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}; +accumulate_ack(SeqId, {IsPersistent, Guid, _Props}, + {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> + {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), + rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore), + [Guid | AllGuids]}. + +find_persistent_count(LensByStore) -> + case orddict:find(true, LensByStore) of + error -> 0; + {ok, Len} -> Len + end. %%---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- --spec remove_confirms_state(gb_set(), state()) -> state(). +remove_confirms(GuidSet, State = #state { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + State #state { msgs_on_disk = gb_sets:difference(MOD, GuidSet), + msg_indices_on_disk = gb_sets:difference(MIOD, GuidSet), + unconfirmed = gb_sets:difference(UC, GuidSet) }. + +msgs_confirmed(GuidSet, State) -> + {gb_sets:to_list(GuidSet), remove_confirms(GuidSet, State)}. + +msgs_written_to_disk(QPid, GuidSet) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + QPid, fun (State = #state { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + msgs_confirmed(gb_sets:intersection(GuidSet, MIOD), + State #state { + msgs_on_disk = + gb_sets:intersection( + gb_sets:union(MOD, GuidSet), UC) }) + end). + +msg_indices_written_to_disk(QPid, GuidSet) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + QPid, fun (State = #state { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + msgs_confirmed(gb_sets:intersection(GuidSet, MOD), + State #state { + msg_indices_on_disk = + gb_sets:intersection( + gb_sets:union(MIOD, GuidSet), UC) }) + end). -remove_confirms_state(GuidSet, State = #state { unconfirmed = UC }) -> - State #state { unconfirmed = gb_sets:difference(UC, GuidSet) }. +%%---------------------------------------------------------------------------- +%% Phase changes +%%---------------------------------------------------------------------------- + +fetch_from_q3(State = #state { + q1 = Q1, + q2 = Q2, + delta = #delta { count = DeltaCount }, + q3 = Q3, + q4 = Q4, + ram_index_count = RamIndexCount}) -> + case bpqueue:out(Q3) of + {empty, _Q3} -> + {empty, State}; + {{value, IndexOnDisk, M}, Q3a} -> + RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), + true = RamIndexCount1 >= 0, %% ASSERTION + State1 = State #state { q3 = Q3a, + ram_index_count = RamIndexCount1 }, + State2 = + case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of + {true, true} -> + %% q3 is now empty, it wasn't before; delta is + %% still empty. So q2 must be empty, and we + %% know q4 is empty otherwise we wouldn't be + %% loading from q3. As such, we can just set + %% q4 to Q1. + true = bpqueue:is_empty(Q2), %% ASSERTION + true = queue:is_empty(Q4), %% ASSERTION + State1 #state { q1 = queue:new(), + q4 = Q1 }; + {true, false} -> + maybe_deltas_to_betas(State1); + {false, _} -> + %% q3 still isn't empty, we've not touched + %% delta, so the invariants between q1, q2, + %% delta and q3 are maintained + State1 + end, + {loaded, {M, State2}} + end. + +maybe_deltas_to_betas(State = #state { delta = ?BLANK_DELTA_PATTERN(X) }) -> + State; +maybe_deltas_to_betas(State = #state { + q2 = Q2, + delta = Delta, + q3 = Q3, + index_state = IndexState, + transient_threshold = TransientThreshold }) -> + #delta { start_seq_id = DeltaSeqId, + count = DeltaCount, + end_seq_id = DeltaSeqIdEnd } = Delta, + DeltaSeqId1 = + lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), + DeltaSeqIdEnd]), + {List, IndexState1} = + rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), + {Q3a, IndexState2} = + betas_from_index_entries(List, TransientThreshold, IndexState1), + State1 = State #state { index_state = IndexState2 }, + case bpqueue:len(Q3a) of + 0 -> + %% we ignored every message in the segment due to it being + %% transient and below the threshold + maybe_deltas_to_betas( + State1 #state { + delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); + Q3aLen -> + Q3b = bpqueue:join(Q3, Q3a), + case DeltaCount - Q3aLen of + 0 -> + %% delta is now empty, but it wasn't before, so + %% can now join q2 onto q3 + State1 #state { q2 = bpqueue:new(), + delta = ?BLANK_DELTA, + q3 = bpqueue:join(Q3b, Q2) }; + N when N > 0 -> + Delta1 = #delta { start_seq_id = DeltaSeqId1, + count = N, + end_seq_id = DeltaSeqIdEnd }, + State1 #state { delta = Delta1, + q3 = Q3b } + end + end. -- cgit v1.2.1 From 018b589380bf804779342ccbcfd34adb490eea63 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sat, 15 Jan 2011 11:54:46 -0800 Subject: More Saturday merging. --- src/rabbit_mnesia_queue.erl | 123 +++----------------------------------------- 1 file changed, 7 insertions(+), 116 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 99b65ed0..736fcb34 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -72,17 +72,13 @@ ram_index_count, out_counter, in_counter, - rates, msgs_on_disk, msg_indices_on_disk, unconfirmed, ack_out_counter, - ack_in_counter, - ack_rates + ack_in_counter }). --record(rates, { egress, ingress, avg_egress, avg_ingress, timestamp }). - -record(m, { seq_id, guid, @@ -120,16 +116,9 @@ -ifdef(use_specs). --type(timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}). -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(rates() :: #rates { egress :: {timestamp(), non_neg_integer()}, - ingress :: {timestamp(), non_neg_integer()}, - avg_egress :: float(), - avg_ingress :: float(), - timestamp :: timestamp() }). - -type(delta() :: #delta { start_seq_id :: non_neg_integer(), count :: non_neg_integer(), end_seq_id :: non_neg_integer() }). @@ -165,13 +154,11 @@ ram_index_count :: non_neg_integer(), out_counter :: non_neg_integer(), in_counter :: non_neg_integer(), - rates :: rates(), msgs_on_disk :: gb_set(), msg_indices_on_disk :: gb_set(), unconfirmed :: gb_set(), ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer(), - ack_rates :: rates() }). + ack_in_counter :: non_neg_integer() }). -include("rabbit_backing_queue_spec.hrl"). @@ -541,83 +528,9 @@ len(#state { len = Len }) -> Len. is_empty(State) -> 0 == len(State). -set_ram_duration_target( - DurationTarget, State = #state { - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate }, - target_ram_count = TargetRamCount }) -> - Rate = - AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, - TargetRamCount1 = - case DurationTarget of - infinity -> infinity; - _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec - end, - State1 = State #state { target_ram_count = TargetRamCount1 }, - case TargetRamCount1 == infinity orelse - (TargetRamCount =/= infinity andalso - TargetRamCount1 >= TargetRamCount) of - true -> State1; - false -> State1 - end. - -ram_duration(State = #state { - rates = #rates { timestamp = Timestamp, - egress = Egress, - ingress = Ingress } = Rates, - ack_rates = #rates { timestamp = AckTimestamp, - egress = AckEgress, - ingress = AckIngress } = ARates, - in_counter = InCount, - out_counter = OutCount, - ack_in_counter = AckInCount, - ack_out_counter = AckOutCount, - ram_msg_count = RamMsgCount, - ram_msg_count_prev = RamMsgCountPrev, - ram_ack_index = RamAckIndex, - ram_ack_count_prev = RamAckCountPrev }) -> - Now = now(), - {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), - {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), - - {AvgAckEgressRate, AckEgress1} = - update_rate(Now, AckTimestamp, AckOutCount, AckEgress), - {AvgAckIngressRate, AckIngress1} = - update_rate(Now, AckTimestamp, AckInCount, AckIngress), - - RamAckCount = gb_trees:size(RamAckIndex), - - Duration = %% msgs+acks / (msgs+acks/sec) == sec - case AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso - AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0 of - true -> infinity; - false -> (RamMsgCountPrev + RamMsgCount + - RamAckCount + RamAckCountPrev) / - (4 * (AvgEgressRate + AvgIngressRate + - AvgAckEgressRate + AvgAckIngressRate)) - end, +set_ram_duration_target(_DurationTarget, State) -> State. - {Duration, State #state { - rates = Rates #rates { - egress = Egress1, - ingress = Ingress1, - avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate, - timestamp = Now }, - ack_rates = ARates #rates { - egress = AckEgress1, - ingress = AckIngress1, - avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate, - timestamp = Now }, - in_counter = 0, - out_counter = 0, - ack_in_counter = 0, - ack_out_counter = 0, - ram_msg_count_prev = RamMsgCount, - ram_ack_count_prev = RamAckCount }}. +ram_duration(State) -> {0, State}. needs_idle_timeout(#state { on_sync = ?BLANK_SYNC }) -> false; needs_idle_timeout(_State) -> true. @@ -637,11 +550,7 @@ status(#state { ram_msg_count = RamMsgCount, ram_index_count = RamIndexCount, next_seq_id = NextSeqId, - persistent_count = PersistentCount, - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate } }) -> + persistent_count = PersistentCount }) -> [ {q1 , queue:len(Q1)}, {q2 , bpqueue:len(Q2)}, {delta , Delta}, @@ -655,11 +564,7 @@ status(#state { {ram_ack_count , gb_trees:size(RAI)}, {ram_index_count , RamIndexCount}, {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount}, - {avg_ingress_rate , AvgIngressRate}, - {avg_egress_rate , AvgEgressRate}, - {avg_ack_ingress_rate, AvgAckIngressRate}, - {avg_ack_egress_rate , AvgAckEgressRate} ]. + {persistent_count , PersistentCount} ]. %%---------------------------------------------------------------------------- %% Minor helpers @@ -776,10 +681,6 @@ betas_from_index_entries(List, TransientThreshold, IndexState) -> beta_fold(Fun, Init, Q) -> bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). -update_rate(Now, Then, Count, {OThen, OCount}) -> - %% avg over the current period and the previous - {1000000.0 * (Count + OCount) / timer:now_diff(Now, OThen), {Then, Count}}. - %%---------------------------------------------------------------------------- %% Internal major helpers for Public API %%---------------------------------------------------------------------------- @@ -795,7 +696,6 @@ init(IsDurable, IndexState, DeltaCount, Terms, count = DeltaCount1, end_seq_id = NextSeqId } end, - Now = now(), State = #state { q1 = queue:new(), q2 = bpqueue:new(), @@ -821,22 +721,13 @@ init(IsDurable, IndexState, DeltaCount, Terms, ram_index_count = 0, out_counter = 0, in_counter = 0, - rates = blank_rate(Now, DeltaCount1), msgs_on_disk = gb_sets:new(), msg_indices_on_disk = gb_sets:new(), unconfirmed = gb_sets:new(), ack_out_counter = 0, - ack_in_counter = 0, - ack_rates = blank_rate(Now, 0) }, + ack_in_counter = 0 }, maybe_deltas_to_betas(State). -blank_rate(Timestamp, IngressLength) -> - #rates { egress = {Timestamp, 0}, - ingress = {Timestamp, IngressLength}, - avg_egress = 0.0, - avg_ingress = 0.0, - timestamp = Timestamp }. - msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, PropsFun) -> Self = self(), F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( -- cgit v1.2.1 From 2e471e7f993efdffa9d86943ec8dfc94a3d63851 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sat, 15 Jan 2011 12:19:27 -0800 Subject: More merging. --- src/rabbit_mnesia_queue.erl | 313 +++++++++++++++++--------------------------- 1 file changed, 123 insertions(+), 190 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 736fcb34..6b32117e 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -61,22 +61,13 @@ on_sync, durable, transient_threshold, - + len, persistent_count, - - target_ram_count, - ram_msg_count, - ram_msg_count_prev, - ram_ack_count_prev, - ram_index_count, - out_counter, - in_counter, + msgs_on_disk, msg_indices_on_disk, - unconfirmed, - ack_out_counter, - ack_in_counter + unconfirmed }). -record(m, @@ -100,13 +91,6 @@ -record(sync, { acks_persistent, acks_all, pubs, funs }). -%% When we discover, on publish, that we should write some indices to -%% disk for some betas, the IO_BATCH_SIZE sets the number of betas -%% that we must be due to write indices for before we do any work at -%% all. This is both a minimum and a maximum - we don't write fewer -%% than IO_BATCH_SIZE indices out in one go, and we don't write more - -%% we can always come back on the next publish to do more. --define(IO_BATCH_SIZE, 64). -define(PERSISTENT_MSG_STORE, msg_store_persistent). -define(TRANSIENT_MSG_STORE, msg_store_transient). @@ -143,22 +127,14 @@ {any(), binary()}}, on_sync :: sync(), durable :: boolean(), - + len :: non_neg_integer(), persistent_count :: non_neg_integer(), - + transient_threshold :: non_neg_integer(), - target_ram_count :: non_neg_integer() | 'infinity', - ram_msg_count :: non_neg_integer(), - ram_msg_count_prev :: non_neg_integer(), - ram_index_count :: non_neg_integer(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), msgs_on_disk :: gb_set(), msg_indices_on_disk :: gb_set(), - unconfirmed :: gb_set(), - ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer() }). + unconfirmed :: gb_set() }). -include("rabbit_backing_queue_spec.hrl"). @@ -246,8 +222,8 @@ init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> terminate(State) -> State1 = #state { persistent_count = PCount, - index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = + index_state = IndexState, + msg_store_clients = {MSCStateP, MSCStateT} } = remove_pending_ack(true, tx_commit_index(State)), PRef = case MSCStateP of undefined -> undefined; @@ -260,8 +236,8 @@ terminate(State) -> {transient_ref, TRef}, {persistent_count, PCount}], State1 #state { index_state = rabbit_queue_index:terminate( - Terms, IndexState), - msg_store_clients = undefined }. + Terms, IndexState), + msg_store_clients = undefined }. %% the only difference between purge and delete is that delete also %% needs to delete everything that's been delivered and not ack'd. @@ -271,7 +247,7 @@ delete_and_terminate(State) -> %% deleting it. {_PurgeCount, State1} = purge(State), State2 = #state { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = + msg_store_clients = {MSCStateP, MSCStateT} } = remove_pending_ack(false, State1), IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), case MSCStateP of @@ -280,13 +256,13 @@ delete_and_terminate(State) -> end, rabbit_msg_store:client_delete_and_terminate(MSCStateT), State2 #state { index_state = IndexState1, - msg_store_clients = undefined }. + msg_store_clients = undefined }. purge(State = #state { q4 = Q4, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> + index_state = IndexState, + msg_store_clients = MSCState, + len = Len, + persistent_count = PCount }) -> %% TODO: when there are no pending acks, which is a common case, %% we could simply wipe the qi instead of issuing delivers and %% acks for all the messages. @@ -294,21 +270,19 @@ purge(State = #state { q4 = Q4, fun rabbit_misc:queue_fold/3, Q4, orddict:new(), IndexState, MSCState), {LensByStore1, State1 = #state { q1 = Q1, - index_state = IndexState2, - msg_store_clients = MSCState1 }} = + index_state = IndexState2, + msg_store_clients = MSCState1 }} = purge_betas_and_deltas(LensByStore, State #state { q4 = queue:new(), - index_state = IndexState1 }), + index_state = IndexState1 }), {LensByStore2, IndexState3} = remove_queue_entries( fun rabbit_misc:queue_fold/3, Q1, LensByStore1, IndexState2, MSCState1), PCount1 = PCount - find_persistent_count(LensByStore2), {Len, State1 #state { q1 = queue:new(), - index_state = IndexState3, - len = 0, - ram_msg_count = 0, - ram_index_count = 0, - persistent_count = PCount1 }}. + index_state = IndexState3, + len = 0, + persistent_count = PCount1 }}. publish(Msg, Props, State) -> {_SeqId, State1} = publish(Msg, Props, false, false, State), @@ -321,12 +295,10 @@ publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, Props = #message_properties { needs_confirming = NeedsConfirming }, State = #state { len = 0, - next_seq_id = SeqId, - out_counter = OutCount, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - unconfirmed = Unconfirmed }) -> + next_seq_id = SeqId, + persistent_count = PCount, + durable = IsDurable, + unconfirmed = Unconfirmed }) -> IsPersistent1 = IsDurable andalso IsPersistent, M = (m(IsPersistent1, SeqId, Msg, Props)) #m { is_delivered = true }, {M1, State1} = maybe_write_to_disk(false, false, M, State), @@ -334,10 +306,8 @@ publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, PCount1 = PCount + one_if(IsPersistent1), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), {SeqId, State2 #state { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - unconfirmed = Unconfirmed1 }}. + persistent_count = PCount1, + unconfirmed = Unconfirmed1 }}. dropwhile(Pred, State) -> {_OkOrEmpty, State1} = dropwhile1(Pred, State), @@ -382,33 +352,29 @@ internal_queue_out(Fun, State = #state { q4 = Q4 }) -> end. read_msg(M = #m { msg = undefined, - guid = Guid, - is_persistent = IsPersistent }, - State = #state { ram_msg_count = RamMsgCount, - msg_store_clients = MSCState}) -> + guid = Guid, + is_persistent = IsPersistent }, + State = #state { msg_store_clients = MSCState}) -> {{ok, Msg = #basic_message {}}, MSCState1} = msg_store_read(MSCState, IsPersistent, Guid), {M #m { msg = Msg }, - State #state { ram_msg_count = RamMsgCount + 1, - msg_store_clients = MSCState1 }}; + State #state { msg_store_clients = MSCState1 }}; read_msg(M, State) -> {M, State}. internal_fetch(AckRequired, - M = #m { - seq_id = SeqId, - guid = Guid, - msg = Msg, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - State = #state {ram_msg_count = RamMsgCount, - out_counter = OutCount, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> + M = #m { + seq_id = SeqId, + guid = Guid, + msg = Msg, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk }, + State = #state { index_state = IndexState, + msg_store_clients = MSCState, + len = Len, + persistent_count = PCount }) -> %% 1. Mark it delivered if necessary IndexState1 = maybe_write_delivered( IndexOnDisk andalso not IsDelivered, @@ -438,14 +404,11 @@ internal_fetch(AckRequired, PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), Len1 = Len - 1, - RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), {{Msg, IsDelivered, AckTag, Len1}, - State1 #state { ram_msg_count = RamMsgCount1, - out_counter = OutCount + 1, - index_state = IndexState2, - len = Len1, - persistent_count = PCount1 }}. + State1 #state { index_state = IndexState2, + len = Len1, + persistent_count = PCount1 }}. ack(AckTags, State) -> {Guids, State1} = @@ -460,7 +423,7 @@ ack(AckTags, State) -> tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, Props, State = #state { durable = IsDurable, - msg_store_clients = MSCState }) -> + msg_store_clients = MSCState }) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, Props} | Pubs] }), _ = case IsPersistent andalso IsDurable of @@ -477,7 +440,7 @@ tx_ack(Txn, AckTags, State) -> State. tx_rollback(Txn, State = #state { durable = IsDurable, - msg_store_clients = MSCState }) -> + msg_store_clients = MSCState }) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), ok = case IsDurable of @@ -488,7 +451,7 @@ tx_rollback(Txn, State = #state { durable = IsDurable, tx_commit(Txn, Fun, PropsFun, State = #state { durable = IsDurable, - msg_store_clients = MSCState }) -> + msg_store_clients = MSCState }) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), @@ -496,13 +459,13 @@ tx_commit(Txn, Fun, PropsFun, HasPersistentPubs = PersistentGuids =/= [], {AckTags1, case IsDurable andalso HasPersistentPubs of - true -> ok = msg_store_sync( - MSCState, true, PersistentGuids, - msg_store_callback(PersistentGuids, Pubs, AckTags1, - Fun, PropsFun)), - State; - false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, - Fun, PropsFun, State) + true -> ok = msg_store_sync( + MSCState, true, PersistentGuids, + msg_store_callback(PersistentGuids, Pubs, AckTags1, + Fun, PropsFun)), + State; + false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, + Fun, PropsFun, State) end}. requeue(AckTags, PropsFun, State) -> @@ -546,9 +509,6 @@ status(#state { pending_ack = PA, ram_ack_index = RAI, on_sync = #sync { funs = From }, - target_ram_count = TargetRamCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, next_seq_id = NextSeqId, persistent_count = PersistentCount }) -> [ {q1 , queue:len(Q1)}, @@ -559,10 +519,7 @@ status(#state { {len , Len}, {pending_acks , dict:size(PA)}, {outstanding_txns , length(From)}, - {target_ram_count , TargetRamCount}, - {ram_msg_count , RamMsgCount}, {ram_ack_count , gb_trees:size(RAI)}, - {ram_index_count , RamIndexCount}, {next_seq_id , NextSeqId}, {persistent_count , PersistentCount} ]. @@ -583,13 +540,13 @@ gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). m(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, Props) -> #m { seq_id = SeqId, - guid = Guid, - msg = Msg, - is_persistent = IsPersistent, - is_delivered = false, - msg_on_disk = false, - index_on_disk = false, - props = Props }. + guid = Guid, + msg = Msg, + is_persistent = IsPersistent, + is_delivered = false, + msg_on_disk = false, + index_on_disk = false, + props = Props }. with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> {Result, MSCStateP1} = Fun(MSCStateP), @@ -662,14 +619,14 @@ betas_from_index_entries(List, TransientThreshold, IndexState) -> cons_if(not IsDelivered, SeqId, Delivers1), [SeqId | Acks1]}; false -> {[#m { msg = undefined, - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true, - props = Props - } | Filtered1], + guid = Guid, + seq_id = SeqId, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_on_disk = true, + index_on_disk = true, + props = Props + } | Filtered1], Delivers1, Acks1} end @@ -714,18 +671,9 @@ init(IsDurable, IndexState, DeltaCount, Terms, len = DeltaCount1, persistent_count = DeltaCount1, - target_ram_count = infinity, - ram_msg_count = 0, - ram_msg_count_prev = 0, - ram_ack_count_prev = 0, - ram_index_count = 0, - out_counter = 0, - in_counter = 0, msgs_on_disk = gb_sets:new(), msg_indices_on_disk = gb_sets:new(), - unconfirmed = gb_sets:new(), - ack_out_counter = 0, - ack_in_counter = 0 }, + unconfirmed = gb_sets:new() }, maybe_deltas_to_betas(State). msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, PropsFun) -> @@ -787,11 +735,11 @@ tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, PropsFun, tx_commit_index(State = #state { on_sync = ?BLANK_SYNC }) -> State; tx_commit_index(State = #state { on_sync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - durable = IsDurable }) -> + acks_persistent = SPAcks, + acks_all = SAcks, + pubs = SPubs, + funs = SFuns }, + durable = IsDurable }) -> PAcks = lists:append(SPAcks), Acks = lists:append(SAcks), {_Guids, NewState} = ack(Acks, State), @@ -813,8 +761,8 @@ tx_commit_index(State = #state { on_sync = #sync { purge_betas_and_deltas(LensByStore, State = #state { q3 = Q3, - index_state = IndexState, - msg_store_clients = MSCState }) -> + index_state = IndexState, + msg_store_clients = MSCState }) -> case bpqueue:is_empty(Q3) of true -> {LensByStore, State}; false -> {LensByStore1, IndexState1} = @@ -866,13 +814,11 @@ publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, Props = #message_properties { needs_confirming = NeedsConfirming }, IsDelivered, MsgOnDisk, State = #state { q1 = Q1, q3 = Q3, q4 = Q4, - next_seq_id = SeqId, - len = Len, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - ram_msg_count = RamMsgCount, - unconfirmed = Unconfirmed }) -> + next_seq_id = SeqId, + len = Len, + persistent_count = PCount, + durable = IsDurable, + unconfirmed = Unconfirmed }) -> IsPersistent1 = IsDurable andalso IsPersistent, M = (m(IsPersistent1, SeqId, Msg, Props)) #m { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, @@ -884,11 +830,9 @@ publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, PCount1 = PCount + one_if(IsPersistent1), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), {SeqId, State2 #state { next_seq_id = SeqId + 1, - len = Len + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - ram_msg_count = RamMsgCount + 1, - unconfirmed = Unconfirmed1 }}. + len = Len + 1, + persistent_count = PCount1, + unconfirmed = Unconfirmed1 }}. maybe_write_msg_to_disk(_Force, M = #m { msg_on_disk = true }, _MSCState) -> M; @@ -905,17 +849,17 @@ maybe_write_msg_to_disk(Force, M = #m { maybe_write_msg_to_disk(_Force, M, _MSCState) -> M. maybe_write_index_to_disk(_Force, - M = #m { index_on_disk = true }, IndexState) -> + M = #m { index_on_disk = true }, IndexState) -> true = M #m.msg_on_disk, %% ASSERTION {M, IndexState}; maybe_write_index_to_disk(Force, - M = #m { - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - props = Props}, - IndexState) + M = #m { + guid = Guid, + seq_id = SeqId, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + props = Props}, + IndexState) when Force orelse IsPersistent -> true = M #m.msg_on_disk, %% ASSERTION IndexState1 = rabbit_queue_index:publish( @@ -927,7 +871,7 @@ maybe_write_index_to_disk(_Force, M, IndexState) -> maybe_write_to_disk(ForceMsg, ForceIndex, M, State = #state { index_state = IndexState, - msg_store_clients = MSCState }) -> + msg_store_clients = MSCState }) -> M1 = maybe_write_msg_to_disk(ForceMsg, M, MSCState), {M2, IndexState1} = maybe_write_index_to_disk(ForceIndex, M1, IndexState), @@ -938,31 +882,27 @@ maybe_write_to_disk(ForceMsg, ForceIndex, M, %%---------------------------------------------------------------------------- record_pending_ack(#m { seq_id = SeqId, - guid = Guid, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - props = Props } = M, - State = #state { pending_ack = PA, - ram_ack_index = RAI, - ack_in_counter = AckInCount}) -> + guid = Guid, + is_persistent = IsPersistent, + msg_on_disk = MsgOnDisk, + props = Props } = M, + State = #state { pending_ack = PA, ram_ack_index = RAI}) -> {AckEntry, RAI1} = case MsgOnDisk of true -> {{IsPersistent, Guid, Props}, RAI}; false -> {M, gb_trees:insert(SeqId, Guid, RAI)} end, PA1 = dict:store(SeqId, AckEntry, PA), - State #state { pending_ack = PA1, - ram_ack_index = RAI1, - ack_in_counter = AckInCount + 1}. + State #state { pending_ack = PA1, ram_ack_index = RAI1 }. remove_pending_ack(KeepPersistent, State = #state { pending_ack = PA, - index_state = IndexState, - msg_store_clients = MSCState }) -> + index_state = IndexState, + msg_store_clients = MSCState }) -> {PersistentSeqIds, GuidsByStore, _AllGuids} = dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), State1 = State #state { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, + ram_ack_index = gb_trees:empty() }, case KeepPersistent of true -> case orddict:find(false, GuidsByStore) of error -> State1; @@ -982,12 +922,11 @@ ack(_MsgStoreFun, _Fun, [], State) -> ack(MsgStoreFun, Fun, AckTags, State) -> {{PersistentSeqIds, GuidsByStore, AllGuids}, State1 = #state { index_state = IndexState, - msg_store_clients = MSCState, - persistent_count = PCount, - ack_out_counter = AckOutCount }} = + msg_store_clients = MSCState, + persistent_count = PCount }} = lists:foldl( fun (SeqId, {Acc, State2 = #state { pending_ack = PA, - ram_ack_index = RAI }}) -> + ram_ack_index = RAI }}) -> AckEntry = dict:fetch(SeqId, PA), {accumulate_ack(SeqId, AckEntry, Acc), Fun(AckEntry, State2 #state { @@ -1001,16 +940,14 @@ ack(MsgStoreFun, Fun, AckTags, State) -> PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( orddict:new(), GuidsByStore)), {lists:reverse(AllGuids), - State1 #state { index_state = IndexState1, - persistent_count = PCount1, - ack_out_counter = AckOutCount + length(AckTags) }}. + State1 #state { index_state = IndexState1, persistent_count = PCount1 }}. accumulate_ack_init() -> {[], orddict:new(), []}. accumulate_ack(_SeqId, #m { is_persistent = false, %% ASSERTIONS - msg_on_disk = false, - index_on_disk = false, - guid = Guid }, + msg_on_disk = false, + index_on_disk = false, + guid = Guid }, {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}; accumulate_ack(SeqId, {IsPersistent, Guid, _Props}, @@ -1030,8 +967,8 @@ find_persistent_count(LensByStore) -> %%---------------------------------------------------------------------------- remove_confirms(GuidSet, State = #state { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> State #state { msgs_on_disk = gb_sets:difference(MOD, GuidSet), msg_indices_on_disk = gb_sets:difference(MIOD, GuidSet), unconfirmed = gb_sets:difference(UC, GuidSet) }. @@ -1042,8 +979,8 @@ msgs_confirmed(GuidSet, State) -> msgs_written_to_disk(QPid, GuidSet) -> rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( QPid, fun (State = #state { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> msgs_confirmed(gb_sets:intersection(GuidSet, MIOD), State #state { msgs_on_disk = @@ -1054,8 +991,8 @@ msgs_written_to_disk(QPid, GuidSet) -> msg_indices_written_to_disk(QPid, GuidSet) -> rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( QPid, fun (State = #state { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> msgs_confirmed(gb_sets:intersection(GuidSet, MOD), State #state { msg_indices_on_disk = @@ -1072,16 +1009,12 @@ fetch_from_q3(State = #state { q2 = Q2, delta = #delta { count = DeltaCount }, q3 = Q3, - q4 = Q4, - ram_index_count = RamIndexCount}) -> + q4 = Q4 }) -> case bpqueue:out(Q3) of {empty, _Q3} -> {empty, State}; - {{value, IndexOnDisk, M}, Q3a} -> - RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), - true = RamIndexCount1 >= 0, %% ASSERTION - State1 = State #state { q3 = Q3a, - ram_index_count = RamIndexCount1 }, + {{value, _, M}, Q3a} -> + State1 = State #state { q3 = Q3a }, State2 = case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of {true, true} -> @@ -1093,7 +1026,7 @@ fetch_from_q3(State = #state { true = bpqueue:is_empty(Q2), %% ASSERTION true = queue:is_empty(Q4), %% ASSERTION State1 #state { q1 = queue:new(), - q4 = Q1 }; + q4 = Q1 }; {true, false} -> maybe_deltas_to_betas(State1); {false, _} -> -- cgit v1.2.1 From dec69a9251776aab448f5bf5a80b59fb26b4e08e Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sat, 15 Jan 2011 19:05:00 -0800 Subject: Testing queue durability --- src/rabbit_mnesia_queue.erl | 345 +++++++++----------------------------------- 1 file changed, 67 insertions(+), 278 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 6b32117e..5bc7c12a 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -31,39 +31,28 @@ -module(rabbit_mnesia_queue). --export([init/3, terminate/1, delete_and_terminate/1, - purge/1, publish/3, publish_delivered/4, fetch/2, ack/2, - tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, - requeue/3, len/1, is_empty/1, dropwhile/2, - set_ram_duration_target/2, ram_duration/1, - needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, - status/1]). +-export( + [init/3, terminate/1, delete_and_terminate/1, purge/1, publish/3, + publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, tx_rollback/2, + tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, + idle_timeout/1, handle_pre_hibernate/1, status/1]). -export([start/1, stop/0]). -%% exported for testing only --export([start_msg_store/2, stop_msg_store/0, init/5]). - -behaviour(rabbit_backing_queue). -record(state, - { q1, - q2, - delta, - q3, - q4, + { q, next_seq_id, pending_ack, - pending_ack_index, ram_ack_index, index_state, msg_store_clients, on_sync, - durable, - transient_threshold, + is_durable, len, - persistent_count, msgs_on_disk, msg_indices_on_disk, @@ -81,12 +70,6 @@ props }). --record(delta, - { start_seq_id, %% start_seq_id is inclusive - count, - end_seq_id %% end_seq_id is exclusive - }). - -record(tx, { pending_messages, pending_acks }). -record(sync, { acks_persistent, acks_all, pubs, funs }). @@ -103,10 +86,6 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(delta() :: #delta { start_seq_id :: non_neg_integer(), - count :: non_neg_integer(), - end_seq_id :: non_neg_integer() }). - -type(sync() :: #sync { acks_persistent :: [[seq_id()]], acks_all :: [[seq_id()]], pubs :: [{message_properties_transformer(), @@ -114,11 +93,7 @@ funs :: [fun (() -> any())] }). -type(state() :: #state { - q1 :: queue(), - q2 :: bpqueue:bpqueue(), - delta :: delta(), - q3 :: bpqueue:bpqueue(), - q4 :: queue(), + q :: queue(), next_seq_id :: seq_id(), pending_ack :: dict(), ram_ack_index :: gb_tree(), @@ -126,12 +101,10 @@ msg_store_clients :: 'undefined' | {{any(), binary()}, {any(), binary()}}, on_sync :: sync(), - durable :: boolean(), + is_durable :: boolean(), len :: non_neg_integer(), - persistent_count :: non_neg_integer(), - transient_threshold :: non_neg_integer(), msgs_on_disk :: gb_set(), msg_indices_on_disk :: gb_set(), unconfirmed :: gb_set() }). @@ -140,13 +113,6 @@ -endif. --define(BLANK_DELTA, #delta { start_seq_id = undefined, - count = 0, - end_seq_id = undefined }). --define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, - count = 0, - end_seq_id = Z }). - -define(BLANK_SYNC, #sync { acks_persistent = [], acks_all = [], pubs = [], @@ -180,13 +146,15 @@ stop_msg_store() -> ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). -init(QueueName, IsDurable, Recover) -> +init(QueueName, _IsDurable, _Recover) -> Self = self(), - init(QueueName, IsDurable, Recover, - fun (Guids) -> msgs_written_to_disk(Self, Guids) end, - fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). + IsDurable = false, + Recover = false, + init5(QueueName, IsDurable, Recover, + fun (Guids) -> msgs_written_to_disk(Self, Guids) end, + fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). -init(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> +init5(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), init(IsDurable, IndexState, 0, [], case IsDurable of @@ -196,7 +164,7 @@ init(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> end, msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); -init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> +init5(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> Terms = rabbit_queue_index:shutdown_terms(QueueName), {PRef, TRef, Terms1} = case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of @@ -217,12 +185,12 @@ init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> rabbit_msg_store:contains(Guid, PersistentClient) end, MsgIdxOnDiskFun), + DeltaCount = 0, %ASSERTION init(true, IndexState, DeltaCount, Terms1, PersistentClient, TransientClient). terminate(State) -> - State1 = #state { persistent_count = PCount, - index_state = IndexState, + State1 = #state { index_state = IndexState, msg_store_clients = {MSCStateP, MSCStateT} } = remove_pending_ack(true, tx_commit_index(State)), PRef = case MSCStateP of @@ -233,8 +201,7 @@ terminate(State) -> ok = rabbit_msg_store:client_terminate(MSCStateT), TRef = rabbit_msg_store:client_ref(MSCStateT), Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}, - {persistent_count, PCount}], + {transient_ref, TRef}], State1 #state { index_state = rabbit_queue_index:terminate( Terms, IndexState), msg_store_clients = undefined }. @@ -258,31 +225,25 @@ delete_and_terminate(State) -> State2 #state { index_state = IndexState1, msg_store_clients = undefined }. -purge(State = #state { q4 = Q4, +purge(State = #state { q = Q, index_state = IndexState, msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> + len = Len }) -> %% TODO: when there are no pending acks, which is a common case, %% we could simply wipe the qi instead of issuing delivers and %% acks for all the messages. {LensByStore, IndexState1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q4, + fun rabbit_misc:queue_fold/3, Q, orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #state { q1 = Q1, - index_state = IndexState2, + {LensByStore1, State1 = #state { index_state = IndexState2, msg_store_clients = MSCState1 }} = purge_betas_and_deltas(LensByStore, - State #state { q4 = queue:new(), + State #state { q = queue:new(), index_state = IndexState1 }), - {LensByStore2, IndexState3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q1, - LensByStore1, IndexState2, MSCState1), - PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, State1 #state { q1 = queue:new(), - index_state = IndexState3, - len = 0, - persistent_count = PCount1 }}. + {_, IndexState3} = remove_queue_entries( + fun rabbit_misc:queue_fold/3, queue:new(), + LensByStore1, IndexState2, MSCState1), + {Len, State1 #state { index_state = IndexState3, len = 0 }}. publish(Msg, Props, State) -> {_SeqId, State1} = publish(Msg, Props, false, false, State), @@ -296,17 +257,14 @@ publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, needs_confirming = NeedsConfirming }, State = #state { len = 0, next_seq_id = SeqId, - persistent_count = PCount, - durable = IsDurable, + is_durable = IsDurable, unconfirmed = Unconfirmed }) -> IsPersistent1 = IsDurable andalso IsPersistent, M = (m(IsPersistent1, SeqId, Msg, Props)) #m { is_delivered = true }, {M1, State1} = maybe_write_to_disk(false, false, M, State), State2 = record_pending_ack(M1, State1), - PCount1 = PCount + one_if(IsPersistent1), Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), {SeqId, State2 #state { next_seq_id = SeqId + 1, - persistent_count = PCount1, unconfirmed = Unconfirmed1 }}. dropwhile(Pred, State) -> @@ -321,13 +279,9 @@ dropwhile1(Pred, State) -> {_, State2} = internal_fetch(false, M, State1), dropwhile1(Pred, State2); false -> - %% message needs to go back into Q4 (or maybe go - %% in for the first time if it was loaded from - %% Q3). Also the msg contents might not be in - %% RAM, so read them in now - {M1, State2 = #state { q4 = Q4 }} = + {M1, State2 = #state { q = Q }} = read_msg(M, State1), - {ok, State2 #state {q4 = queue:in_r(M1, Q4) }} + {ok, State2 #state {q = queue:in_r(M1, Q) }} end end, State). @@ -340,15 +294,14 @@ fetch(AckRequired, State) -> internal_fetch(AckRequired, M1, State2) end, State). -internal_queue_out(Fun, State = #state { q4 = Q4 }) -> - case queue:out(Q4) of - {empty, _Q4} -> +internal_queue_out(Fun, State = #state { q = Q }) -> + case queue:out(Q) of + {empty, _Q} -> case fetch_from_q3(State) of - {empty, State1} = Result -> _ = State1, Result; - {loaded, {M, State1}} -> Fun(M, State1) + {empty, State1} = Result -> _ = State1, Result end; - {{value, M}, Q4a} -> - Fun(M, State #state { q4 = Q4a }) + {{value, M}, Qa} -> + Fun(M, State #state { q = Qa }) end. read_msg(M = #m { msg = undefined, @@ -373,8 +326,7 @@ internal_fetch(AckRequired, index_on_disk = IndexOnDisk }, State = #state { index_state = IndexState, msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> + len = Len }) -> %% 1. Mark it delivered if necessary IndexState1 = maybe_write_delivered( IndexOnDisk andalso not IsDelivered, @@ -402,13 +354,11 @@ internal_fetch(AckRequired, false -> {blank_ack, State} end, - PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), Len1 = Len - 1, {{Msg, IsDelivered, AckTag, Len1}, State1 #state { index_state = IndexState2, - len = Len1, - persistent_count = PCount1 }}. + len = Len1 }}. ack(AckTags, State) -> {Guids, State1} = @@ -422,7 +372,7 @@ ack(AckTags, State) -> {Guids, State1}. tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, Props, - State = #state { durable = IsDurable, + State = #state { is_durable = IsDurable, msg_store_clients = MSCState }) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, Props} | Pubs] }), @@ -439,7 +389,7 @@ tx_ack(Txn, AckTags, State) -> store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), State. -tx_rollback(Txn, State = #state { durable = IsDurable, +tx_rollback(Txn, State = #state { is_durable = IsDurable, msg_store_clients = MSCState }) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), @@ -450,7 +400,7 @@ tx_rollback(Txn, State = #state { durable = IsDurable, {lists:append(AckTags), State}. tx_commit(Txn, Fun, PropsFun, - State = #state { durable = IsDurable, + State = #state { is_durable = IsDurable, msg_store_clients = MSCState }) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), @@ -504,37 +454,27 @@ handle_pre_hibernate(State = #state { index_state = IndexState }) -> State #state { index_state = rabbit_queue_index:flush(IndexState) }. status(#state { - q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, + q = Q, len = Len, pending_ack = PA, ram_ack_index = RAI, on_sync = #sync { funs = From }, - next_seq_id = NextSeqId, - persistent_count = PersistentCount }) -> - [ {q1 , queue:len(Q1)}, - {q2 , bpqueue:len(Q2)}, - {delta , Delta}, - {q3 , bpqueue:len(Q3)}, - {q4 , queue:len(Q4)}, - {len , Len}, - {pending_acks , dict:size(PA)}, - {outstanding_txns , length(From)}, - {ram_ack_count , gb_trees:size(RAI)}, - {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount} ]. + next_seq_id = NextSeqId }) -> + [ {q, queue:len(Q)}, + {len, Len}, + {pending_acks, dict:size(PA)}, + {outstanding_txns, length(From)}, + {ram_ack_count, gb_trees:size(RAI)}, + {next_seq_id, NextSeqId} ]. %%---------------------------------------------------------------------------- %% Minor helpers %%---------------------------------------------------------------------------- -one_if(true ) -> 1; -one_if(false) -> 0. - cons_if(true, E, L) -> [E | L]; cons_if(false, _E, L) -> L. gb_sets_maybe_insert(false, _Val, Set) -> Set; -%% when requeueing, we re-add a guid to the unconfirmed set gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). m(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, @@ -609,68 +549,22 @@ persistent_guids(Pubs) -> [Guid || {#basic_message { guid = Guid, is_persistent = true }, _Props} <- Pubs]. -betas_from_index_entries(List, TransientThreshold, IndexState) -> - {Filtered, Delivers, Acks} = - lists:foldr( - fun ({Guid, SeqId, Props, IsPersistent, IsDelivered}, - {Filtered1, Delivers1, Acks1}) -> - case SeqId < TransientThreshold andalso not IsPersistent of - true -> {Filtered1, - cons_if(not IsDelivered, SeqId, Delivers1), - [SeqId | Acks1]}; - false -> {[#m { msg = undefined, - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true, - props = Props - } | Filtered1], - Delivers1, - Acks1} - end - end, {[], [], []}, List), - {bpqueue:from_list([{true, Filtered}]), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -beta_fold(Fun, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). - %%---------------------------------------------------------------------------- %% Internal major helpers for Public API %%---------------------------------------------------------------------------- -init(IsDurable, IndexState, DeltaCount, Terms, - PersistentClient, TransientClient) -> - {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), - - DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), - Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of - true -> ?BLANK_DELTA; - false -> #delta { start_seq_id = LowSeqId, - count = DeltaCount1, - end_seq_id = NextSeqId } - end, +init(IsDurable, IndexState, _, _, PersistentClient, TransientClient) -> + {_, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), State = #state { - q1 = queue:new(), - q2 = bpqueue:new(), - delta = Delta, - q3 = bpqueue:new(), - q4 = queue:new(), + q = queue:new(), next_seq_id = NextSeqId, pending_ack = dict:new(), ram_ack_index = gb_trees:empty(), index_state = IndexState1, msg_store_clients = {PersistentClient, TransientClient}, on_sync = ?BLANK_SYNC, - durable = IsDurable, - transient_threshold = NextSeqId, - - len = DeltaCount1, - persistent_count = DeltaCount1, - + is_durable = IsDurable, + len = 0, msgs_on_disk = gb_sets:new(), msg_indices_on_disk = gb_sets:new(), unconfirmed = gb_sets:new() }, @@ -704,7 +598,7 @@ tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, PropsFun, pubs = SPubs, funs = SFuns }, pending_ack = PA, - durable = IsDurable }) -> + is_durable = IsDurable }) -> PersistentAcks = case IsDurable of true -> [AckTag || AckTag <- AckTags, @@ -739,7 +633,7 @@ tx_commit_index(State = #state { on_sync = #sync { acks_all = SAcks, pubs = SPubs, funs = SFuns }, - durable = IsDurable }) -> + is_durable = IsDurable }) -> PAcks = lists:append(SPAcks), Acks = lists:append(SAcks), {_Guids, NewState} = ack(Acks, State), @@ -759,21 +653,7 @@ tx_commit_index(State = #state { on_sync = #sync { _ = [ Fun() || Fun <- lists:reverse(SFuns) ], State1 #state { index_state = IndexState1, on_sync = ?BLANK_SYNC }. -purge_betas_and_deltas(LensByStore, - State = #state { q3 = Q3, - index_state = IndexState, - msg_store_clients = MSCState }) -> - case bpqueue:is_empty(Q3) of - true -> {LensByStore, State}; - false -> {LensByStore1, IndexState1} = - remove_queue_entries(fun beta_fold/3, Q3, - LensByStore, IndexState, MSCState), - purge_betas_and_deltas(LensByStore1, - maybe_deltas_to_betas( - State #state { - q3 = bpqueue:new(), - index_state = IndexState1 })) - end. +purge_betas_and_deltas(LensByStore, State) -> {LensByStore, State}. remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> {GuidsByStore, Delivers, Acks} = @@ -813,25 +693,19 @@ sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, Props = #message_properties { needs_confirming = NeedsConfirming }, IsDelivered, MsgOnDisk, - State = #state { q1 = Q1, q3 = Q3, q4 = Q4, + State = #state { q = Q, next_seq_id = SeqId, len = Len, - persistent_count = PCount, - durable = IsDurable, + is_durable = IsDurable, unconfirmed = Unconfirmed }) -> IsPersistent1 = IsDurable andalso IsPersistent, M = (m(IsPersistent1, SeqId, Msg, Props)) #m { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, {M1, State1} = maybe_write_to_disk(false, false, M, State), - State2 = case bpqueue:is_empty(Q3) of - false -> State1 #state { q1 = queue:in(M1, Q1) }; - true -> State1 #state { q4 = queue:in(M1, Q4) } - end, - PCount1 = PCount + one_if(IsPersistent1), + State2 = State1 #state { q = queue:in(M1, Q) }, Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), {SeqId, State2 #state { next_seq_id = SeqId + 1, len = Len + 1, - persistent_count = PCount1, unconfirmed = Unconfirmed1 }}. maybe_write_msg_to_disk(_Force, M = #m { msg_on_disk = true }, _MSCState) -> @@ -922,8 +796,7 @@ ack(_MsgStoreFun, _Fun, [], State) -> ack(MsgStoreFun, Fun, AckTags, State) -> {{PersistentSeqIds, GuidsByStore, AllGuids}, State1 = #state { index_state = IndexState, - msg_store_clients = MSCState, - persistent_count = PCount }} = + msg_store_clients = MSCState }} = lists:foldl( fun (SeqId, {Acc, State2 = #state { pending_ack = PA, ram_ack_index = RAI }}) -> @@ -937,10 +810,7 @@ ack(MsgStoreFun, Fun, AckTags, State) -> IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), _ = [ok = MsgStoreFun(MSCState, IsPersistent, Guids) || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( - orddict:new(), GuidsByStore)), - {lists:reverse(AllGuids), - State1 #state { index_state = IndexState1, persistent_count = PCount1 }}. + {lists:reverse(AllGuids), State1 #state { index_state = IndexState1 }}. accumulate_ack_init() -> {[], orddict:new(), []}. @@ -956,12 +826,6 @@ accumulate_ack(SeqId, {IsPersistent, Guid, _Props}, rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore), [Guid | AllGuids]}. -find_persistent_count(LensByStore) -> - case orddict:find(true, LensByStore) of - error -> 0; - {ok, Len} -> Len - end. - %%---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- @@ -1004,81 +868,6 @@ msg_indices_written_to_disk(QPid, GuidSet) -> %% Phase changes %%---------------------------------------------------------------------------- -fetch_from_q3(State = #state { - q1 = Q1, - q2 = Q2, - delta = #delta { count = DeltaCount }, - q3 = Q3, - q4 = Q4 }) -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - {empty, State}; - {{value, _, M}, Q3a} -> - State1 = State #state { q3 = Q3a }, - State2 = - case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of - {true, true} -> - %% q3 is now empty, it wasn't before; delta is - %% still empty. So q2 must be empty, and we - %% know q4 is empty otherwise we wouldn't be - %% loading from q3. As such, we can just set - %% q4 to Q1. - true = bpqueue:is_empty(Q2), %% ASSERTION - true = queue:is_empty(Q4), %% ASSERTION - State1 #state { q1 = queue:new(), - q4 = Q1 }; - {true, false} -> - maybe_deltas_to_betas(State1); - {false, _} -> - %% q3 still isn't empty, we've not touched - %% delta, so the invariants between q1, q2, - %% delta and q3 are maintained - State1 - end, - {loaded, {M, State2}} - end. - -maybe_deltas_to_betas(State = #state { delta = ?BLANK_DELTA_PATTERN(X) }) -> - State; -maybe_deltas_to_betas(State = #state { - q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - transient_threshold = TransientThreshold }) -> - #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = DeltaSeqIdEnd } = Delta, - DeltaSeqId1 = - lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), - DeltaSeqIdEnd]), - {List, IndexState1} = - rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), - {Q3a, IndexState2} = - betas_from_index_entries(List, TransientThreshold, IndexState1), - State1 = State #state { index_state = IndexState2 }, - case bpqueue:len(Q3a) of - 0 -> - %% we ignored every message in the segment due to it being - %% transient and below the threshold - maybe_deltas_to_betas( - State1 #state { - delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); - Q3aLen -> - Q3b = bpqueue:join(Q3, Q3a), - case DeltaCount - Q3aLen of - 0 -> - %% delta is now empty, but it wasn't before, so - %% can now join q2 onto q3 - State1 #state { q2 = bpqueue:new(), - delta = ?BLANK_DELTA, - q3 = bpqueue:join(Q3b, Q2) }; - N when N > 0 -> - Delta1 = #delta { start_seq_id = DeltaSeqId1, - count = N, - end_seq_id = DeltaSeqIdEnd }, - State1 #state { delta = Delta1, - q3 = Q3b } - end - end. +fetch_from_q3(State) -> {empty, State}. +maybe_deltas_to_betas(State) -> State. -- cgit v1.2.1 From b245b640c5247ef8f05b69d7d2009ea63871badd Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sun, 16 Jan 2011 17:15:02 -0800 Subject: Updating logging for debugging. --- src/rabbit_mnesia_queue.erl | 1359 ++++++++++++++++++++----------------------- 1 file changed, 638 insertions(+), 721 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 5bc7c12a..ff01dd92 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -18,11 +18,11 @@ %% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial %% Technologies LLC, and Rabbit Technologies Ltd. %% -%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift +%% Portions created by LShift Ltd are Copyright (C) 2007-2011 LShift %% Ltd. Portions created by Cohesive Financial Technologies LLC are -%% Copyright (C) 2007-2010 Cohesive Financial Technologies +%% Copyright (C) 2007-2011 Cohesive Financial Technologies %% LLC. Portions created by Rabbit Technologies Ltd are Copyright -%% (C) 2007-2010 Rabbit Technologies Ltd. +%% (C) 2007-2011 Rabbit Technologies Ltd. %% %% All Rights Reserved. %% @@ -32,842 +32,759 @@ -module(rabbit_mnesia_queue). -export( - [init/3, terminate/1, delete_and_terminate/1, purge/1, publish/3, - publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, tx_rollback/2, - tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, + [start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, + tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, status/1]). --export([start/1, stop/0]). +%%---------------------------------------------------------------------------- +%% This is Take Three of a simple initial Mnesia implementation of the +%% rabbit_backing_queue behavior. This version was created by starting +%% with rabbit_variable_queue.erl, and removing everything unneeded. +%% +%% This will eventually be structured as a plug-in instead of an extra +%% module in the middle of the server tree.... +%% ---------------------------------------------------------------------------- + +%%---------------------------------------------------------------------------- +%% In the queue we separate messages that are pending delivery and +%% messages that are pending acks. This ensures that purging (deleting +%% the former) and deletion (deleting both) are both cheap and do not +%% require any scanning through lists of messages. +%% +%% This module usually wraps messages into M records, containing the +%% messages themselves and additional information. +%% +%% Pending acks are recorded in memory as M records. +%% +%% All queues are durable in this version, no matter how they are +%% requested. (We will need to remember the requested type in the +%% future, to catch accidental redeclares.) All messages are transient +%% (non-persistent) in this interim version, in order to rip out all +%% of the old backing code before inserting the new backing +%% code. (This breaks some tests, since all messages are temporarily +%% dropped on restart.) +%% +%% May need to add code to throw away transient messages upon +%% initialization, depending on storage strategy. +%% +%%---------------------------------------------------------------------------- + +%% BUG: I've temporarily ripped out most of the calls to Mnesia while +%% debugging problems with the Mnesia documentation. (Ask me sometimes +%% over drinks to explain how just plain wrong it is.) I've figured +%% out the real type signatures now and will soon put everything back +%% in. -behaviour(rabbit_backing_queue). --record(state, - { q, - next_seq_id, - pending_ack, - ram_ack_index, - index_state, - msg_store_clients, - on_sync, - is_durable, - - len, - - msgs_on_disk, - msg_indices_on_disk, - unconfirmed - }). +-record(state, % The in-RAM queue state + { mnesiaTableName, % An atom naming the associated Mnesia table + q, % A temporary in-RAM queue of Ms + next_seq_id, % The next seq_id to use to build an M + pending_ack_dict, % Map from seq_id to M, pending ack + + %% redo the following? + unconfirmed, --record(m, - { seq_id, - guid, - msg, - is_persistent, - is_delivered, - msg_on_disk, - index_on_disk, - props + on_sync }). --record(tx, { pending_messages, pending_acks }). +-record(m, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg (the Mnesia index) + msg, % The msg itself + props, % The message properties + is_delivered % Has the msg been delivered? (for reporting) + }). --record(sync, { acks_persistent, acks_all, pubs, funs }). +-record(tx, + { pending_messages, + pending_acks }). --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). +-record(sync, + { acks, + pubs, + funs }). -include("rabbit.hrl"). %%---------------------------------------------------------------------------- --ifdef(use_specs). +%% BUG: Restore -ifdef, -endif. + +%% -ifdef(use_specs). -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(sync() :: #sync { acks_persistent :: [[seq_id()]], - acks_all :: [[seq_id()]], +-type(state() :: #state { mnesiaTableName :: atom(), + q :: queue(), + next_seq_id :: seq_id(), + pending_ack_dict :: dict(), + unconfirmed :: gb_set(), + on_sync :: sync() }). + +-type(m() :: #m { msg :: rabbit_types:basic_message(), + seq_id :: seq_id(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). + +-type(tx() :: #tx { pending_messages :: [{rabbit_types:basic_message(), + rabbit_types:message_properties()}], + pending_acks :: [[ack()]] }). + +-type(sync() :: #sync { acks :: [[seq_id()]], pubs :: [{message_properties_transformer(), [rabbit_types:basic_message()]}], funs :: [fun (() -> any())] }). --type(state() :: #state { - q :: queue(), - next_seq_id :: seq_id(), - pending_ack :: dict(), - ram_ack_index :: gb_tree(), - index_state :: any(), - msg_store_clients :: 'undefined' | {{any(), binary()}, - {any(), binary()}}, - on_sync :: sync(), - is_durable :: boolean(), - - len :: non_neg_integer(), +-include("rabbit_backing_queue_spec.hrl"). - msgs_on_disk :: gb_set(), - msg_indices_on_disk :: gb_set(), - unconfirmed :: gb_set() }). +%% -endif. --include("rabbit_backing_queue_spec.hrl"). +-define(BLANK_SYNC, #sync { acks = [], pubs = [], funs = [] }). --endif. +%%---------------------------------------------------------------------------- +%% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. --define(BLANK_SYNC, #sync { acks_persistent = [], - acks_all = [], - pubs = [], - funs = [] }). +%%---------------------------------------------------------------------------- +%% start/1 is called on startup with a list of (durable) queue +%% names. The queues aren't being started at this point, but this call +%% allows the backing queue to perform any checking necessary for the +%% consistency of those queues, or initialise any other shared +%% resources. +%% +%% This function should be called only from outside this module. +%% +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). %%---------------------------------------------------------------------------- %% Public API %%---------------------------------------------------------------------------- -start(DurableQueues) -> - {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), - start_msg_store( - [Ref || Terms <- AllTerms, - begin - Ref = proplists:get_value(persistent_ref, Terms), - Ref =/= undefined - end], - StartFunState). +start(_DurableQueues) -> + rabbit_log:info("start(_) -> ok"), + ok. -stop() -> stop_msg_store(). +%%---------------------------------------------------------------------------- +%% stop/0 is called to tear down any state/resources. NB: +%% Implementations should not depend on this function being called on +%% shutdown and instead should hook into the rabbit supervision +%% hierarchy. +%% +%% This function should be called only from outside this module. +%% +%% -spec(stop/0 :: () -> 'ok'). -start_msg_store(Refs, StartFunState) -> - ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, - [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), - undefined, {fun (ok) -> finished end, ok}]), - ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, - [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), - Refs, StartFunState]). +stop() -> + rabbit_log:info("stop(_) -> ok"), + ok. -stop_msg_store() -> - ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), - ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). +%%---------------------------------------------------------------------------- +%% init/3 initializes one backing queue and its state. +%% +%% -spec(init/3 :: +%% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) +%% -> state()). +%% +%% This function should be called only from outside this module. + +%% BUG: Should do quite a bit more upon recovery.... + +%% BUG: Each queue name becomes an atom (to name a table), and atoms +%% are never GC'd + +%% BUG: Need to provide back-pressure when queue is filling up. init(QueueName, _IsDurable, _Recover) -> - Self = self(), - IsDurable = false, - Recover = false, - init5(QueueName, IsDurable, Recover, - fun (Guids) -> msgs_written_to_disk(Self, Guids) end, - fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). - -init5(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> - IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), - init(IsDurable, IndexState, 0, [], - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskFun); - false -> undefined - end, - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); - -init5(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> - Terms = rabbit_queue_index:shutdown_terms(QueueName), - {PRef, TRef, Terms1} = - case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of - [] -> {proplists:get_value(persistent_ref, Terms), - proplists:get_value(transient_ref, Terms), - Terms}; - _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} - end, - PersistentClient = rabbit_msg_store:client_init(?PERSISTENT_MSG_STORE, - PRef, MsgOnDiskFun), - TransientClient = rabbit_msg_store:client_init(?TRANSIENT_MSG_STORE, - TRef, undefined), - {DeltaCount, IndexState} = - rabbit_queue_index:recover( - QueueName, Terms1, - rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), - fun (Guid) -> - rabbit_msg_store:contains(Guid, PersistentClient) - end, - MsgIdxOnDiskFun), - DeltaCount = 0, %ASSERTION - init(true, IndexState, DeltaCount, Terms1, - PersistentClient, TransientClient). + MnesiaTableName = mnesiaTableName(QueueName), + Result = #state { mnesiaTableName = MnesiaTableName, + q = queue:new(), + next_seq_id = 0, + pending_ack_dict = dict:new(), + unconfirmed = gb_sets:new(), + on_sync = ?BLANK_SYNC }, + rabbit_log:info("init(~p, _, _) -> ~p", [QueueName, Result]), + Result. + +%%---------------------------------------------------------------------------- +%% terminate/1 is called on queue shutdown when the queue isn't being +%% deleted. +%% +%% This function should be called only from outside this module. +%% +%% -spec(terminate/1 :: (state()) -> state()). terminate(State) -> - State1 = #state { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(true, tx_commit_index(State)), - PRef = case MSCStateP of - undefined -> undefined; - _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), - rabbit_msg_store:client_ref(MSCStateP) - end, - ok = rabbit_msg_store:client_terminate(MSCStateT), - TRef = rabbit_msg_store:client_ref(MSCStateT), - Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}], - State1 #state { index_state = rabbit_queue_index:terminate( - Terms, IndexState), - msg_store_clients = undefined }. + Result = remove_pending_acks_state(tx_commit_index_state(State)), + rabbit_log:info("terminate(~p) -> ~p", [State, Result]), + Result. + +%%---------------------------------------------------------------------------- +%% delete_and_terminate/1 is called when the queue is terminating and +%% needs to delete all its content. The only difference between purge +%% and delete is that delete also needs to delete everything that's +%% been delivered and not ack'd. +%% +%% This function should be called only from outside this module. +%% +%% -spec(delete_and_terminate/1 :: (state()) -> state()). %% the only difference between purge and delete is that delete also %% needs to delete everything that's been delivered and not ack'd. + delete_and_terminate(State) -> - %% TODO: there is no need to interact with qi at all - which we do - %% as part of 'purge' and 'remove_pending_ack', other than - %% deleting it. - {_PurgeCount, State1} = purge(State), - State2 = #state { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(false, State1), - IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), - case MSCStateP of - undefined -> ok; - _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) - end, - rabbit_msg_store:client_delete_and_terminate(MSCStateT), - State2 #state { index_state = IndexState1, - msg_store_clients = undefined }. - -purge(State = #state { q = Q, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len }) -> - %% TODO: when there are no pending acks, which is a common case, - %% we could simply wipe the qi instead of issuing delivers and - %% acks for all the messages. - {LensByStore, IndexState1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q, - orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #state { index_state = IndexState2, - msg_store_clients = MSCState1 }} = - purge_betas_and_deltas(LensByStore, - State #state { q = queue:new(), - index_state = IndexState1 }), - {_, IndexState3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, queue:new(), - LensByStore1, IndexState2, MSCState1), - {Len, State1 #state { index_state = IndexState3, len = 0 }}. + {_, State1} = purge(State), + Result = remove_pending_acks_state(State1), + rabbit_log:info("delete_and_terminate(~p) -> ~p", [State, Result]), + Result. + +%%---------------------------------------------------------------------------- +%% purge/1 removes all messages in the queue, but not messages which +%% have been fetched and are pending acks. +%% +%% This function should be called only from outside this module. +%% +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(State = #state { q = Q }) -> + Result = {queue:len(Q), State #state { q = queue:new() }}, + rabbit_log:info("purge(~p) -> ~p", [State, Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish/3 publishes a message. +%% +%% This function should be called only from outside this module. +%% +%% -spec(publish/3 :: +%% (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). publish(Msg, Props, State) -> - {_SeqId, State1} = publish(Msg, Props, false, false, State), - State1. + Result = publish_state(Msg, Props, false, State), + rabbit_log:info("publish(~p, ~p, ~p) -> ~p", [Msg, Props, State, Result]), + Result. -publish_delivered(false, _Msg, _Props, State = #state { len = 0 }) -> - {blank_ack, State}; -publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, - guid = Guid }, +%%---------------------------------------------------------------------------- +%% publish_delivered/4 is called for messages which have already been +%% passed straight out to a client. The queue will be empty for these +%% calls (i.e. saves the round trip through the backing queue). +%% +%% This function should be called only from outside this module. +%% +%% -spec(publish_delivered/4 :: +%% (ack_required(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> {ack(), state()}). + +publish_delivered(false, _, _, State) -> + Result = {blank_ack, State}, + rabbit_log:info( + "publish_deliveed(false, _, _, ~p) -> ~p", [State, Result]), + Result; +publish_delivered(true, + Msg = #basic_message { guid = Guid }, Props = #message_properties { needs_confirming = NeedsConfirming }, - State = #state { len = 0, - next_seq_id = SeqId, - is_durable = IsDurable, + State = #state { next_seq_id = SeqId, unconfirmed = Unconfirmed }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - M = (m(IsPersistent1, SeqId, Msg, Props)) #m { is_delivered = true }, - {M1, State1} = maybe_write_to_disk(false, false, M, State), - State2 = record_pending_ack(M1, State1), - Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, State2 #state { next_seq_id = SeqId + 1, - unconfirmed = Unconfirmed1 }}. + Result = + {SeqId, + (record_pending_ack_state( + ((m(Msg, SeqId, Props)) #m { is_delivered = true }), State)) + #state { + next_seq_id = SeqId + 1, + unconfirmed = + gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) }}, + rabbit_log:info( + "publish_delivered(true, ~p, ~p, ~p) -> ~p", + [Msg, Props, State, Result]), + Result. + +%%---------------------------------------------------------------------------- +%% dropwhile/2 drops messages from the head of the queue while the +%% supplied predicate returns true. +%% +%% This function should be called only from outside this module. +%% +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). dropwhile(Pred, State) -> - {_OkOrEmpty, State1} = dropwhile1(Pred, State), - State1. + {ok, State1} = dropwhile_state(Pred, State), + Result = State1, + rabbit_log:info("dropwhile(~p, ~p) -> ~p", [Pred, State, Result]), + Result. -dropwhile1(Pred, State) -> +-spec(dropwhile_state/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), state()) + -> {ok, state()}). + +dropwhile_state(Pred, State) -> internal_queue_out( - fun(M = #m { props = Props }, State1) -> - case Pred(Props) of - true -> - {_, State2} = internal_fetch(false, M, State1), - dropwhile1(Pred, State2); - false -> - {M1, State2 = #state { q = Q }} = - read_msg(M, State1), - {ok, State2 #state {q = queue:in_r(M1, Q) }} - end - end, State). + fun (M = #m { props = Props }, S = #state { q = Q }) -> + case Pred(Props) of + true -> + {_, S1} = internal_fetch(false, M, S), + dropwhile_state(Pred, S1); + false -> {ok, S #state {q = queue:in_r(M, Q) }} + end + end, + State). + +%%---------------------------------------------------------------------------- +%% fetch/2 produces the next message. +%% +%% This function should be called only from outside this module. +%% +%% -spec(fetch/2 :: (ack_required(), state()) -> +%% {ok | fetch_result(), state()}). fetch(AckRequired, State) -> - internal_queue_out( - fun(M, State1) -> - %% it's possible that the message wasn't read from disk - %% at this point, so read it in. - {M1, State2} = read_msg(M, State1), - internal_fetch(AckRequired, M1, State2) - end, State). + Result = + internal_queue_out( + fun (M, S) -> internal_fetch(AckRequired, M, S) end, State), + rabbit_log:info("fetch(~p, ~p) -> ~p", [AckRequired, State, Result]), + Result. + +-spec internal_queue_out(fun ((m(), state()) -> T), state()) -> + {empty, state()} | T. internal_queue_out(Fun, State = #state { q = Q }) -> case queue:out(Q) of - {empty, _Q} -> - case fetch_from_q3(State) of - {empty, State1} = Result -> _ = State1, Result - end; - {{value, M}, Qa} -> - Fun(M, State #state { q = Qa }) + {empty, _} -> {empty, State}; + {{value, M}, Qa} -> Fun(M, State #state { q = Qa }) end. -read_msg(M = #m { msg = undefined, - guid = Guid, - is_persistent = IsPersistent }, - State = #state { msg_store_clients = MSCState}) -> - {{ok, Msg = #basic_message {}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, Guid), - {M #m { msg = Msg }, - State #state { msg_store_clients = MSCState1 }}; -read_msg(M, State) -> - {M, State}. +-spec internal_fetch/3 :: (ack_required(), m(), state()) -> + {fetch_result(), state()}. internal_fetch(AckRequired, M = #m { - seq_id = SeqId, - guid = Guid, - msg = Msg, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - State = #state { index_state = IndexState, - msg_store_clients = MSCState, - len = Len }) -> - %% 1. Mark it delivered if necessary - IndexState1 = maybe_write_delivered( - IndexOnDisk andalso not IsDelivered, - SeqId, IndexState), - - %% 2. Remove from msg_store and queue index, if necessary - Rem = fun () -> - ok = msg_store_remove(MSCState, IsPersistent, [Guid]) - end, - Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, - IndexState2 = - case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of - {false, true, false, _} -> Rem(), IndexState1; - {false, true, true, _} -> Rem(), Ack(); - { true, true, true, false} -> Ack(); - _ -> IndexState1 + seq_id = SeqId, + msg = Msg, + is_delivered = IsDelivered }, + State = #state { q = Q }) -> + {AckTag, State1} = + case AckRequired of + true -> + {SeqId, + record_pending_ack_state( + M #m { is_delivered = true }, State)}; + false -> {blank_ack, State} end, + {{Msg, IsDelivered, AckTag, queue:len(Q) - 1}, State1}. - %% 3. If an ack is required, add something sensible to PA - {AckTag, State1} = case AckRequired of - true -> StateN = record_pending_ack( - M #m { - is_delivered = true }, State), - {SeqId, StateN}; - false -> {blank_ack, State} - end, +%%---------------------------------------------------------------------------- +%% ack/2 acknowledges messages. Acktags supplied are for messages +%% which can now be forgotten about. Must return 1 guid per Ack, in +%% the same order as Acks. +%% +%% This function should be called only from outside this module. +%% +%% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). - Len1 = Len - 1, +ack(AckTags, State) -> + {Guids, State1} = internal_ack(AckTags, State), + Result = {Guids, State1}, + rabbit_log:info("ack(~p, ~p) -> ~p", [AckTags, State, Result]), + Result. - {{Msg, IsDelivered, AckTag, Len1}, - State1 #state { index_state = IndexState2, - len = Len1 }}. +-spec(internal_ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). -ack(AckTags, State) -> +internal_ack(AckTags, State) -> {Guids, State1} = - ack(fun msg_store_remove/3, - fun ({_IsPersistent, Guid, _Props}, State1) -> - remove_confirms(gb_sets:singleton(Guid), State1); - (#m{msg = #basic_message { guid = Guid }}, State1) -> - remove_confirms(gb_sets:singleton(Guid), State1) - end, - AckTags, State), + internal_ack( + fun (#m { msg = #basic_message { guid = Guid }}, S) -> + remove_confirms_state(gb_sets:singleton(Guid), S) + end, + AckTags, + State), {Guids, State1}. -tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, Props, - State = #state { is_durable = IsDurable, - msg_store_clients = MSCState }) -> +%%---------------------------------------------------------------------------- +%% tx_publish/4 is a publish, but in the context of a transaction. +%% +%% This function should be called only from outside this module. +%% +%% -spec(tx_publish/4 :: +%% (rabbit_types:txn(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +tx_publish(Txn, Msg, Props, State) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, Props} | Pubs] }), - _ = case IsPersistent andalso IsDurable of - true -> M = m(true, undefined, Msg, Props), - #m { msg_on_disk = true } = - maybe_write_msg_to_disk(false, M, MSCState); - false -> ok - end, - State. + Result = State, + rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) -> ~p", [Txn, Msg, Props, State, Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_ack/3 acks, but in the context of a transaction. +%% +%% This function should be called only from outside this module. +%% +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). tx_ack(Txn, AckTags, State) -> Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), - State. + Result = State, + rabbit_log:info("tx_ack(~p, ~p, ~p) -> ~p", [Txn, AckTags, State, Result]), + Result. -tx_rollback(Txn, State = #state { is_durable = IsDurable, - msg_store_clients = MSCState }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), +%%---------------------------------------------------------------------------- +%% tx_rollback/2 undoes anything which has been done in the context of +%% the specified transaction. +%% +%% This function should be called only from outside this module. +%% +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + +tx_rollback(Txn, State) -> + #tx { pending_acks = AckTags } = lookup_tx(Txn), erase_tx(Txn), - ok = case IsDurable of - true -> msg_store_remove(MSCState, true, persistent_guids(Pubs)); - false -> ok - end, - {lists:append(AckTags), State}. - -tx_commit(Txn, Fun, PropsFun, - State = #state { is_durable = IsDurable, - msg_store_clients = MSCState }) -> + Result = {lists:append(AckTags), State}, + rabbit_log:info("tx_rollback(~p, ~p) -> ~p", [Txn, State, Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_commit/4 commits a transaction. The Fun passed in must be called +%% once the messages have really been commited. This CPS permits the +%% possibility of commit coalescing. +%% +%% This function should be called only from outside this module. +%% +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), +%% fun (() -> any()), +%% message_properties_transformer(), +%% state()) +%% -> {[ack()], state()}). + +tx_commit(Txn, Fun, PropsFun, State) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), - PersistentGuids = persistent_guids(Pubs), - HasPersistentPubs = PersistentGuids =/= [], - {AckTags1, - case IsDurable andalso HasPersistentPubs of - true -> ok = msg_store_sync( - MSCState, true, PersistentGuids, - msg_store_callback(PersistentGuids, Pubs, AckTags1, - Fun, PropsFun)), - State; - false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, - Fun, PropsFun, State) - end}. + Result = + {AckTags1, + internal_tx_commit_store_state(Pubs, AckTags1, Fun, PropsFun, State)}, + rabbit_log:info( + "tx_commit(~p, ~p, ~p, ~p) -> ~p", [Txn, Fun, PropsFun, State, Result]), + Result. + +%%---------------------------------------------------------------------------- +%% requeue/3 reinserts messages into the queue which have already been +%% delivered and were pending acknowledgement. +%% +%% This function should be called only from outside this module. +%% +%% -spec(requeue/3 :: +%% ([ack()], message_properties_transformer(), state()) -> state()). requeue(AckTags, PropsFun, State) -> - {_Guids, State1} = - ack(fun msg_store_release/3, - fun (#m { msg = Msg, props = Props }, State1) -> - {_SeqId, State2} = publish(Msg, PropsFun(Props), - true, false, State1), - State2; - ({IsPersistent, Guid, Props}, State1) -> - #state { msg_store_clients = MSCState } = State1, - {{ok, Msg = #basic_message{}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, Guid), - State2 = State1 #state { msg_store_clients = MSCState1 }, - {_SeqId, State3} = publish(Msg, PropsFun(Props), - true, true, State2), - State3 - end, - AckTags, State), - State1. - -len(#state { len = Len }) -> Len. - -is_empty(State) -> 0 == len(State). - -set_ram_duration_target(_DurationTarget, State) -> State. - -ram_duration(State) -> {0, State}. - -needs_idle_timeout(#state { on_sync = ?BLANK_SYNC }) -> false; -needs_idle_timeout(_State) -> true. - -idle_timeout(State) -> tx_commit_index(State). - -handle_pre_hibernate(State = #state { index_state = IndexState }) -> - State #state { index_state = rabbit_queue_index:flush(IndexState) }. - -status(#state { - q = Q, - len = Len, - pending_ack = PA, - ram_ack_index = RAI, - on_sync = #sync { funs = From }, - next_seq_id = NextSeqId }) -> - [ {q, queue:len(Q)}, - {len, Len}, - {pending_acks, dict:size(PA)}, - {outstanding_txns, length(From)}, - {ram_ack_count, gb_trees:size(RAI)}, - {next_seq_id, NextSeqId} ]. + {_, State1} = + internal_ack( + fun (#m { msg = Msg, props = Props }, S) -> + publish_state(Msg, PropsFun(Props), true, S) + end, + AckTags, + State), + Result = State1, + rabbit_log:info( + "requeue(~p, ~p, ~p) -> ~p", [AckTags, PropsFun, State, Result]), + Result. %%---------------------------------------------------------------------------- -%% Minor helpers +%% len/1 returns the queue length. +%% +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(#state { q = Q }) -> + Result = queue:len(Q), + rabbit_log:info("len(~p) -> ~p", [Q, Result]), + Result. + +%%---------------------------------------------------------------------------- +%% is_empty/1 returns 'true' if the queue is empty, and 'false' +%% otherwise. +%% +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(#state { q = Q }) -> + Result = queue:is_empty(Q), + rabbit_log:info("is_empty(~p) -> ~p", [Q, Result]), + Result. + %%---------------------------------------------------------------------------- +%% For the next two functions, the assumption is that you're +%% monitoring something like the ingress and egress rates of the +%% queue. The RAM duration is thus the length of time represented by +%% the messages held in RAM given the current rates. If you want to +%% ignore all of this stuff, then do so, and return 0 in +%% ram_duration/1. + +%% set_ram_duration_target states that the target is to have no more +%% messages in RAM than indicated by the duration and the current +%% queue rates. +%% +%% This function should be called only from outside this module. +%% +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) +%% -> state()). -cons_if(true, E, L) -> [E | L]; -cons_if(false, _E, L) -> L. +set_ram_duration_target(_, State) -> + Result = State, + rabbit_log:info("set_ram_duration_target(_~p) -> ~p", [State, Result]), + Result. -gb_sets_maybe_insert(false, _Val, Set) -> Set; -gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). +%%---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the messages in RAM represent given the current rates of +%% the queue. +%% +%% This function should be called only from outside this module. +%% +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). -m(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, - Props) -> - #m { seq_id = SeqId, - guid = Guid, - msg = Msg, - is_persistent = IsPersistent, - is_delivered = false, - msg_on_disk = false, - index_on_disk = false, - props = Props }. - -with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> - {Result, MSCStateP1} = Fun(MSCStateP), - {Result, {MSCStateP1, MSCStateT}}; -with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> - {Result, MSCStateT1} = Fun(MSCStateT), - {Result, {MSCStateP, MSCStateT1}}. - -with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> - {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, - fun (MSCState1) -> - {Fun(MSCState1), MSCState1} - end), - Res. - -msg_store_client_init(MsgStore, MsgOnDiskFun) -> - rabbit_msg_store:client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). - -msg_store_write(MSCState, IsPersistent, Guid, Msg) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:write(Guid, Msg, MSCState1) end). - -msg_store_read(MSCState, IsPersistent, Guid) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:read(Guid, MSCState1) end). - -msg_store_remove(MSCState, IsPersistent, Guids) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:remove(Guids, MCSState1) end). - -msg_store_release(MSCState, IsPersistent, Guids) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:release(Guids, MCSState1) end). - -msg_store_sync(MSCState, IsPersistent, Guids, Callback) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:sync(Guids, Callback, MSCState1) end). - -maybe_write_delivered(false, _SeqId, IndexState) -> - IndexState; -maybe_write_delivered(true, SeqId, IndexState) -> - rabbit_queue_index:deliver([SeqId], IndexState). - -lookup_tx(Txn) -> case get({txn, Txn}) of - undefined -> #tx { pending_messages = [], - pending_acks = [] }; - V -> V - end. - -store_tx(Txn, Tx) -> put({txn, Txn}, Tx). - -erase_tx(Txn) -> erase({txn, Txn}). - -persistent_guids(Pubs) -> - [Guid || {#basic_message { guid = Guid, - is_persistent = true }, _Props} <- Pubs]. +ram_duration(State) -> + Result = {0, State}, + rabbit_log:info("ram_duration(~p) -> ~p", [State, Result]), + Result. %%---------------------------------------------------------------------------- -%% Internal major helpers for Public API +%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be +%% called as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires), and 'false' otherwise. +%% +%% This function should be called only from outside this module. +%% +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +`needs_idle_timeout(#state { on_sync = ?BLANK_SYNC }) -> + Result = false, + rabbit_log:info("needs_idle_timeout(_) -> ~p", [Result]), + Result; +needs_idle_timeout(_) -> + Result = true, + rabbit_log:info("needs_idle_timeout(_) -> ~p", [Result]), + Result. + %%---------------------------------------------------------------------------- +%% idle_timeout/1 is called (eventually) after needs_idle_timeout returns +%% 'true'. Note this may be called more than once for each 'true' +%% returned from needs_idle_timeout. +%% +%% This function should be called only from outside this module. +%% +%% -spec(idle_timeout/1 :: (state()) -> state()). -init(IsDurable, IndexState, _, _, PersistentClient, TransientClient) -> - {_, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), - State = #state { - q = queue:new(), - next_seq_id = NextSeqId, - pending_ack = dict:new(), - ram_ack_index = gb_trees:empty(), - index_state = IndexState1, - msg_store_clients = {PersistentClient, TransientClient}, - on_sync = ?BLANK_SYNC, - is_durable = IsDurable, - len = 0, - msgs_on_disk = gb_sets:new(), - msg_indices_on_disk = gb_sets:new(), - unconfirmed = gb_sets:new() }, - maybe_deltas_to_betas(State). - -msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, PropsFun) -> - Self = self(), - F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( - Self, fun (StateN) -> {[], tx_commit_post_msg_store( - true, Pubs, AckTags, - Fun, PropsFun, StateN)} - end) - end, - fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( - fun () -> remove_persistent_messages( - PersistentGuids) - end, F) - end) - end. +idle_timeout(State) -> + Result = tx_commit_index_state(State), + rabbit_log:info("idle_timeout(~p) -> ~p", [State, Result]), + Result. -remove_persistent_messages(Guids) -> - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, undefined), - ok = rabbit_msg_store:remove(Guids, PersistentClient), - rabbit_msg_store:client_delete_and_terminate(PersistentClient). - -tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, PropsFun, - State = #state { - on_sync = OnSync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - pending_ack = PA, - is_durable = IsDurable }) -> - PersistentAcks = - case IsDurable of - true -> [AckTag || AckTag <- AckTags, - case dict:fetch(AckTag, PA) of - #m {} -> false; - {IsPersistent, _Guid, _Props} -> - IsPersistent - end]; - false -> [] - end, - case IsDurable andalso (HasPersistentPubs orelse PersistentAcks =/= []) of - true -> State #state { - on_sync = #sync { - acks_persistent = [PersistentAcks | SPAcks], - acks_all = [AckTags | SAcks], - pubs = [{PropsFun, Pubs} | SPubs], - funs = [Fun | SFuns] }}; - false -> State1 = tx_commit_index( - State #state { - on_sync = #sync { - acks_persistent = [], - acks_all = [AckTags], - pubs = [{PropsFun, Pubs}], - funs = [Fun] } }), - State1 #state { on_sync = OnSync } +%%---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. +%% +%% This function should be called only from outside this module. +%% +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). + +handle_pre_hibernate(State) -> + Result = State, + rabbit_log:info("handle_pre_hibernate(~p) -> ~p", [State, Result]), + Result. + +%%---------------------------------------------------------------------------- +%% status/1 exists for debugging purposes, to be able to expose state +%% via rabbitmqctl list_queues backing_queue_status +%% +%% This function should be called only from outside this module. +%% +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(#state { mnesiaTableName = MnesiaTableName, + q = Q, + next_seq_id = NextSeqId, + pending_ack_dict = PAD, + on_sync = #sync { funs = Funs }}) -> + Result = [{mnesiaTableName, MnesiaTableName}, + {len, queue:len(Q)}, + {next_seq_id, NextSeqId}, + {pending_acks, dict:size(PAD)}, + {outstanding_txns, length(Funs)}], + rabbit_log:info("status(_) -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% Minor helpers +%%---------------------------------------------------------------------------- + +%% When requeueing, we re-add a guid to the unconfirmed set. + +gb_sets_maybe_insert(false, _, Set) -> Set; +gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). + +-spec m(rabbit_types:basic_message(), + seq_id(), + rabbit_types:message_properties()) -> + m(). + +m(Msg, SeqId, Props) -> + #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. + +-spec lookup_tx(rabbit_types:txn()) -> tx(). + +lookup_tx(Txn) -> + case get({txn, Txn}) of + undefined -> #tx { pending_messages = [], pending_acks = [] }; + V -> V end. -tx_commit_index(State = #state { on_sync = ?BLANK_SYNC }) -> - State; -tx_commit_index(State = #state { on_sync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - is_durable = IsDurable }) -> - PAcks = lists:append(SPAcks), - Acks = lists:append(SAcks), - {_Guids, NewState} = ack(Acks, State), - Pubs = [{Msg, Fun(Props)} || {Fun, PubsN} <- lists:reverse(SPubs), - {Msg, Props} <- lists:reverse(PubsN)], - {SeqIds, State1 = #state { index_state = IndexState }} = +-spec store_tx(rabbit_types:txn(), tx()) -> ok. + +store_tx(Txn, Tx) -> put({txn, Txn}, Tx), ok. + +-spec erase_tx(rabbit_types:txn()) -> ok. + +erase_tx(Txn) -> erase({txn, Txn}), ok. + +%% Convert a queue name (a record) into an Mnesia table name (an atom). + +%% TODO: Import correct type. + +-spec mnesiaTableName(_) -> atom(). + +mnesiaTableName(QueueName) -> + list_to_atom(lists:flatten(io_lib:format("~p", [QueueName]))). + +%%---------------------------------------------------------------------------- +%% Internal major helpers for Public API +%%---------------------------------------------------------------------------- + +-spec internal_tx_commit_store_state([rabbit_types:basic_message()], + [seq_id()], + fun (() -> any()), + message_properties_transformer(), + state()) -> + state(). + +internal_tx_commit_store_state(Pubs, + AckTags, + Fun, + PropsFun, + State = #state { on_sync = OnSync }) -> + (tx_commit_index_state( + State #state { + on_sync = + #sync { acks = [AckTags], + pubs = [{PropsFun, Pubs}], + funs = [Fun] }})) + #state { on_sync = OnSync }. + +-spec tx_commit_index_state(state()) -> state(). + +tx_commit_index_state(State = #state { on_sync = ?BLANK_SYNC }) -> State; +tx_commit_index_state(State = #state { + on_sync = #sync { acks = SAcks, + pubs = SPubs, + funs = SFuns }}) -> + {_, State1} = internal_ack(lists:append(SAcks), State), + {_, State2} = lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, - Props}, - {SeqIdsAcc, State2}) -> - IsPersistent1 = IsDurable andalso IsPersistent, - {SeqId, State3} = - publish(Msg, Props, false, IsPersistent1, State2), - {cons_if(IsPersistent1, SeqId, SeqIdsAcc), State3} - end, {PAcks, NewState}, Pubs), - IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), + fun ({Msg, Props}, {SeqIds, S}) -> + {SeqIds, publish_state(Msg, Props, false, S)} + end, + {[], State1}, + [{Msg, Fun(Props)} || + {Fun, PubsN} <- lists:reverse(SPubs), + {Msg, Props} <- lists:reverse(PubsN)]), _ = [ Fun() || Fun <- lists:reverse(SFuns) ], - State1 #state { index_state = IndexState1, on_sync = ?BLANK_SYNC }. - -purge_betas_and_deltas(LensByStore, State) -> {LensByStore, State}. - -remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> - {GuidsByStore, Delivers, Acks} = - Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), - ok = orddict:fold(fun (IsPersistent, Guids, ok) -> - msg_store_remove(MSCState, IsPersistent, Guids) - end, ok, GuidsByStore), - {sum_guids_by_store_to_len(LensByStore, GuidsByStore), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -remove_queue_entries1( - #m { guid = Guid, - seq_id = SeqId, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk, - is_persistent = IsPersistent }, - {GuidsByStore, Delivers, Acks}) -> - {case MsgOnDisk of - true -> rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore); - false -> GuidsByStore - end, - cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), - cons_if(IndexOnDisk, SeqId, Acks)}. - -sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> - orddict:fold( - fun (IsPersistent, Guids, LensByStore1) -> - orddict:update_counter(IsPersistent, length(Guids), LensByStore1) - end, LensByStore, GuidsByStore). + State2 #state { on_sync = ?BLANK_SYNC }. %%---------------------------------------------------------------------------- %% Internal gubbins for publishing %%---------------------------------------------------------------------------- -publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, - Props = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, MsgOnDisk, - State = #state { q = Q, - next_seq_id = SeqId, - len = Len, - is_durable = IsDurable, - unconfirmed = Unconfirmed }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - M = (m(IsPersistent1, SeqId, Msg, Props)) - #m { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, - {M1, State1} = maybe_write_to_disk(false, false, M, State), - State2 = State1 #state { q = queue:in(M1, Q) }, - Unconfirmed1 = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed), - {SeqId, State2 #state { next_seq_id = SeqId + 1, - len = Len + 1, - unconfirmed = Unconfirmed1 }}. - -maybe_write_msg_to_disk(_Force, M = #m { msg_on_disk = true }, _MSCState) -> - M; -maybe_write_msg_to_disk(Force, M = #m { - msg = Msg, guid = Guid, - is_persistent = IsPersistent }, MSCState) - when Force orelse IsPersistent -> - Msg1 = Msg #basic_message { - %% don't persist any recoverable decoded properties - content = rabbit_binary_parser:clear_decoded_content( - Msg #basic_message.content)}, - ok = msg_store_write(MSCState, IsPersistent, Guid, Msg1), - M #m { msg_on_disk = true }; -maybe_write_msg_to_disk(_Force, M, _MSCState) -> M. - -maybe_write_index_to_disk(_Force, - M = #m { index_on_disk = true }, IndexState) -> - true = M #m.msg_on_disk, %% ASSERTION - {M, IndexState}; -maybe_write_index_to_disk(Force, - M = #m { - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - props = Props}, - IndexState) - when Force orelse IsPersistent -> - true = M #m.msg_on_disk, %% ASSERTION - IndexState1 = rabbit_queue_index:publish( - Guid, SeqId, Props, IsPersistent, IndexState), - {M #m { index_on_disk = true }, - maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; -maybe_write_index_to_disk(_Force, M, IndexState) -> - {M, IndexState}. - -maybe_write_to_disk(ForceMsg, ForceIndex, M, - State = #state { index_state = IndexState, - msg_store_clients = MSCState }) -> - M1 = maybe_write_msg_to_disk(ForceMsg, M, MSCState), - {M2, IndexState1} = - maybe_write_index_to_disk(ForceIndex, M1, IndexState), - {M2, State #state { index_state = IndexState1 }}. +-spec publish_state(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). + +publish_state(Msg = #basic_message { guid = Guid }, + Props = + #message_properties { needs_confirming = NeedsConfirming }, + IsDelivered, + State = #state { + q = Q, next_seq_id = SeqId, unconfirmed = Unconfirmed }) -> + State #state { + q = queue:in( + (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), + next_seq_id = SeqId + 1, + unconfirmed = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) }. %%---------------------------------------------------------------------------- %% Internal gubbins for acks %%---------------------------------------------------------------------------- -record_pending_ack(#m { seq_id = SeqId, - guid = Guid, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - props = Props } = M, - State = #state { pending_ack = PA, ram_ack_index = RAI}) -> - {AckEntry, RAI1} = - case MsgOnDisk of - true -> {{IsPersistent, Guid, Props}, RAI}; - false -> {M, gb_trees:insert(SeqId, Guid, RAI)} - end, - PA1 = dict:store(SeqId, AckEntry, PA), - State #state { pending_ack = PA1, ram_ack_index = RAI1 }. - -remove_pending_ack(KeepPersistent, - State = #state { pending_ack = PA, - index_state = IndexState, - msg_store_clients = MSCState }) -> - {PersistentSeqIds, GuidsByStore, _AllGuids} = - dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - State1 = State #state { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, - case KeepPersistent of - true -> case orddict:find(false, GuidsByStore) of - error -> State1; - {ok, Guids} -> ok = msg_store_remove(MSCState, false, - Guids), - State1 - end; - false -> IndexState1 = - rabbit_queue_index:ack(PersistentSeqIds, IndexState), - _ = [ok = msg_store_remove(MSCState, IsPersistent, Guids) - || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - State1 #state { index_state = IndexState1 } - end. +-spec record_pending_ack_state(m(), state()) -> state(). -ack(_MsgStoreFun, _Fun, [], State) -> - {[], State}; -ack(MsgStoreFun, Fun, AckTags, State) -> - {{PersistentSeqIds, GuidsByStore, AllGuids}, - State1 = #state { index_state = IndexState, - msg_store_clients = MSCState }} = - lists:foldl( - fun (SeqId, {Acc, State2 = #state { pending_ack = PA, - ram_ack_index = RAI }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, State2 #state { - pending_ack = dict:erase(SeqId, PA), - ram_ack_index = - gb_trees:delete_any(SeqId, RAI)})} - end, {accumulate_ack_init(), State}, AckTags), - IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), - _ = [ok = MsgStoreFun(MSCState, IsPersistent, Guids) - || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - {lists:reverse(AllGuids), State1 #state { index_state = IndexState1 }}. - -accumulate_ack_init() -> {[], orddict:new(), []}. - -accumulate_ack(_SeqId, #m { is_persistent = false, %% ASSERTIONS - msg_on_disk = false, - index_on_disk = false, - guid = Guid }, - {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> - {PersistentSeqIdsAcc, GuidsByStore, [Guid | AllGuids]}; -accumulate_ack(SeqId, {IsPersistent, Guid, _Props}, - {PersistentSeqIdsAcc, GuidsByStore, AllGuids}) -> - {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), - rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore), - [Guid | AllGuids]}. +record_pending_ack_state(M = #m { seq_id = SeqId }, + State = #state { pending_ack_dict = PAD }) -> + State #state { pending_ack_dict = dict:store(SeqId, M, PAD) }. -%%---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%%---------------------------------------------------------------------------- +% -spec remove_pending_acks_state(state()) -> state(). -remove_confirms(GuidSet, State = #state { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - State #state { msgs_on_disk = gb_sets:difference(MOD, GuidSet), - msg_indices_on_disk = gb_sets:difference(MIOD, GuidSet), - unconfirmed = gb_sets:difference(UC, GuidSet) }. +remove_pending_acks_state(State = #state { pending_ack_dict = PAD }) -> + _ = dict:fold(fun (_, V, Acc) -> accumulate_ack(V, Acc) end, [], PAD), + State #state { pending_ack_dict = dict:new() }. -msgs_confirmed(GuidSet, State) -> - {gb_sets:to_list(GuidSet), remove_confirms(GuidSet, State)}. +-spec internal_ack(fun (([rabbit_guid:guid()], state()) -> state()), + [rabbit_guid:guid()], + state()) -> + {[rabbit_guid:guid()], state()}. -msgs_written_to_disk(QPid, GuidSet) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (State = #state { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - msgs_confirmed(gb_sets:intersection(GuidSet, MIOD), - State #state { - msgs_on_disk = - gb_sets:intersection( - gb_sets:union(MOD, GuidSet), UC) }) - end). +internal_ack(_, [], State) -> {[], State}; +internal_ack(Fun, AckTags, State) -> + {AllGuids, State1} = + lists:foldl( + fun (SeqId, {Acc, S = #state { pending_ack_dict = PAD }}) -> + AckEntry = dict:fetch(SeqId, PAD), + {accumulate_ack(AckEntry, Acc), + Fun(AckEntry, + S #state { pending_ack_dict = dict:erase(SeqId, PAD)})} + end, + {[], State}, + AckTags), + {lists:reverse(AllGuids), State1}. + +-spec accumulate_ack(m(), [rabbit_guid:guid()]) -> [rabbit_guid:guid()]. -msg_indices_written_to_disk(QPid, GuidSet) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (State = #state { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - msgs_confirmed(gb_sets:intersection(GuidSet, MOD), - State #state { - msg_indices_on_disk = - gb_sets:intersection( - gb_sets:union(MIOD, GuidSet), UC) }) - end). +accumulate_ack(#m { msg = #basic_message { guid = Guid }}, AllGuids) -> + [Guid | AllGuids]. %%---------------------------------------------------------------------------- -%% Phase changes +%% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- -fetch_from_q3(State) -> {empty, State}. +-spec remove_confirms_state(gb_set(), state()) -> state(). + +remove_confirms_state(GuidSet, State = #state { unconfirmed = UC }) -> + State #state { unconfirmed = gb_sets:difference(UC, GuidSet) }. -maybe_deltas_to_betas(State) -> State. -- cgit v1.2.1 From 55972b75686e1aca7eae7802c713a55037b7f7e4 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sun, 16 Jan 2011 21:47:51 -0800 Subject: Almost working version to add the Mnesia and MySQL code too. Fails some tests. --- src/rabbit_mnesia_queue.erl | 177 ++++++++++++++++++++++++++------------------ 1 file changed, 104 insertions(+), 73 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index ff01dd92..4e6f32c8 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -93,7 +93,7 @@ -record(m, % A wrapper aroung a msg { seq_id, % The seq_id for the msg (the Mnesia index) - msg, % The msg itself + msg, % The msg itself props, % The message properties is_delivered % Has the msg been delivered? (for reporting) }). @@ -166,7 +166,8 @@ %%---------------------------------------------------------------------------- start(_DurableQueues) -> - rabbit_log:info("start(_) -> ok"), + rabbit_log:info("start(_) ->"), + rabbit_log:info(" -> ok"), ok. %%---------------------------------------------------------------------------- @@ -180,7 +181,8 @@ start(_DurableQueues) -> %% -spec(stop/0 :: () -> 'ok'). stop() -> - rabbit_log:info("stop(_) -> ok"), + rabbit_log:info("stop(_) ->"), + rabbit_log:info(" -> ok"), ok. %%---------------------------------------------------------------------------- @@ -200,14 +202,15 @@ stop() -> %% BUG: Need to provide back-pressure when queue is filling up. init(QueueName, _IsDurable, _Recover) -> + rabbit_log:info("init(~p, _, _) ->", [QueueName]), MnesiaTableName = mnesiaTableName(QueueName), Result = #state { mnesiaTableName = MnesiaTableName, - q = queue:new(), - next_seq_id = 0, - pending_ack_dict = dict:new(), - unconfirmed = gb_sets:new(), - on_sync = ?BLANK_SYNC }, - rabbit_log:info("init(~p, _, _) -> ~p", [QueueName, Result]), + q = queue:new(), + next_seq_id = 0, + pending_ack_dict = dict:new(), + unconfirmed = gb_sets:new(), + on_sync = ?BLANK_SYNC }, + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -220,7 +223,8 @@ init(QueueName, _IsDurable, _Recover) -> terminate(State) -> Result = remove_pending_acks_state(tx_commit_index_state(State)), - rabbit_log:info("terminate(~p) -> ~p", [State, Result]), + rabbit_log:info("terminate(~p) ->", [State]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -237,9 +241,10 @@ terminate(State) -> %% needs to delete everything that's been delivered and not ack'd. delete_and_terminate(State) -> + rabbit_log:info("delete_and_terminate(~p) ->", [State]), {_, State1} = purge(State), Result = remove_pending_acks_state(State1), - rabbit_log:info("delete_and_terminate(~p) -> ~p", [State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -251,8 +256,9 @@ delete_and_terminate(State) -> %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). purge(State = #state { q = Q }) -> + rabbit_log:info("purge(~p) ->", [State]), Result = {queue:len(Q), State #state { q = queue:new() }}, - rabbit_log:info("purge(~p) -> ~p", [State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -267,8 +273,12 @@ purge(State = #state { q = Q }) -> %% -> state()). publish(Msg, Props, State) -> + rabbit_log:info("publish("), + rabbit_log:info(" ~p,", [Msg]), + rabbit_log:info(" ~p,", [Props]), + rabbit_log:info(" ~p) ->", [State]), Result = publish_state(Msg, Props, false, State), - rabbit_log:info("publish(~p, ~p, ~p) -> ~p", [Msg, Props, State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -286,9 +296,10 @@ publish(Msg, Props, State) -> %% -> {ack(), state()}). publish_delivered(false, _, _, State) -> + rabbit_log:info("publish_delivered(false, _, _,"), + rabbit_log:info(" ~p) ->", [State]), Result = {blank_ack, State}, - rabbit_log:info( - "publish_deliveed(false, _, _, ~p) -> ~p", [State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result; publish_delivered(true, Msg = #basic_message { guid = Guid }, @@ -296,17 +307,19 @@ publish_delivered(true, needs_confirming = NeedsConfirming }, State = #state { next_seq_id = SeqId, unconfirmed = Unconfirmed }) -> + rabbit_log:info("publish_delivered(true, "), + rabbit_log:info(" ~p,", [Msg]), + rabbit_log:info(" ~p,", [Props]), + rabbit_log:info(" ~p) ->", [State]), Result = - {SeqId, - (record_pending_ack_state( + {SeqId, + (record_pending_ack_state( ((m(Msg, SeqId, Props)) #m { is_delivered = true }), State)) - #state { - next_seq_id = SeqId + 1, - unconfirmed = - gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) }}, - rabbit_log:info( - "publish_delivered(true, ~p, ~p, ~p) -> ~p", - [Msg, Props, State, Result]), + #state { + next_seq_id = SeqId + 1, + unconfirmed = + gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) }}, + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -320,9 +333,10 @@ publish_delivered(true, %% -> state()). dropwhile(Pred, State) -> + rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, State]), {ok, State1} = dropwhile_state(Pred, State), Result = State1, - rabbit_log:info("dropwhile(~p, ~p) -> ~p", [Pred, State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. -spec(dropwhile_state/2 :: @@ -332,12 +346,12 @@ dropwhile(Pred, State) -> dropwhile_state(Pred, State) -> internal_queue_out( fun (M = #m { props = Props }, S = #state { q = Q }) -> - case Pred(Props) of - true -> - {_, S1} = internal_fetch(false, M, S), - dropwhile_state(Pred, S1); - false -> {ok, S #state {q = queue:in_r(M, Q) }} - end + case Pred(Props) of + true -> + {_, S1} = internal_fetch(false, M, S), + dropwhile_state(Pred, S1); + false -> {ok, S #state {q = queue:in_r(M, Q) }} + end end, State). @@ -350,10 +364,11 @@ dropwhile_state(Pred, State) -> %% {ok | fetch_result(), state()}). fetch(AckRequired, State) -> + rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, State]), Result = - internal_queue_out( - fun (M, S) -> internal_fetch(AckRequired, M, S) end, State), - rabbit_log:info("fetch(~p, ~p) -> ~p", [AckRequired, State, Result]), + internal_queue_out( + fun (M, S) -> internal_fetch(AckRequired, M, S) end, State), + rabbit_log:info(" -> ~p", [Result]), Result. -spec internal_queue_out(fun ((m(), state()) -> T), state()) -> @@ -370,9 +385,9 @@ internal_queue_out(Fun, State = #state { q = Q }) -> internal_fetch(AckRequired, M = #m { - seq_id = SeqId, - msg = Msg, - is_delivered = IsDelivered }, + seq_id = SeqId, + msg = Msg, + is_delivered = IsDelivered }, State = #state { q = Q }) -> {AckTag, State1} = case AckRequired of @@ -394,9 +409,12 @@ internal_fetch(AckRequired, %% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). ack(AckTags, State) -> + rabbit_log:info("ack(",), + rabbit_log:info("~p,", [AckTags]), + rabbit_log:info(" ~p) ->", [State]), {Guids, State1} = internal_ack(AckTags, State), Result = {Guids, State1}, - rabbit_log:info("ack(~p, ~p) -> ~p", [AckTags, State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. -spec(internal_ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). @@ -424,10 +442,11 @@ internal_ack(AckTags, State) -> %% -> state()). tx_publish(Txn, Msg, Props, State) -> + rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, State]), Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, Props} | Pubs] }), Result = State, - rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) -> ~p", [Txn, Msg, Props, State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -438,10 +457,11 @@ tx_publish(Txn, Msg, Props, State) -> %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). tx_ack(Txn, AckTags, State) -> + rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, AckTags, State]), Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), Result = State, - rabbit_log:info("tx_ack(~p, ~p, ~p) -> ~p", [Txn, AckTags, State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -453,10 +473,11 @@ tx_ack(Txn, AckTags, State) -> %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, State) -> + rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, State]), #tx { pending_acks = AckTags } = lookup_tx(Txn), erase_tx(Txn), Result = {lists:append(AckTags), State}, - rabbit_log:info("tx_rollback(~p, ~p) -> ~p", [Txn, State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -474,14 +495,15 @@ tx_rollback(Txn, State) -> %% -> {[ack()], state()}). tx_commit(Txn, Fun, PropsFun, State) -> + rabbit_log:info( + "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, Fun, PropsFun, State]), #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), Result = - {AckTags1, - internal_tx_commit_store_state(Pubs, AckTags1, Fun, PropsFun, State)}, - rabbit_log:info( - "tx_commit(~p, ~p, ~p, ~p) -> ~p", [Txn, Fun, PropsFun, State, Result]), + {AckTags1, + internal_tx_commit_store_state(Pubs, AckTags1, Fun, PropsFun, State)}, + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -494,6 +516,7 @@ tx_commit(Txn, Fun, PropsFun, State) -> %% ([ack()], message_properties_transformer(), state()) -> state()). requeue(AckTags, PropsFun, State) -> + rabbit_log:info("requeue(~p, ~p, ~p) ->", [AckTags, PropsFun, State]), {_, State1} = internal_ack( fun (#m { msg = Msg, props = Props }, S) -> @@ -502,8 +525,7 @@ requeue(AckTags, PropsFun, State) -> AckTags, State), Result = State1, - rabbit_log:info( - "requeue(~p, ~p, ~p) -> ~p", [AckTags, PropsFun, State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -512,8 +534,9 @@ requeue(AckTags, PropsFun, State) -> %% -spec(len/1 :: (state()) -> non_neg_integer()). len(#state { q = Q }) -> +% rabbit_log:info("len(~p) ->", [Q]), Result = queue:len(Q), - rabbit_log:info("len(~p) -> ~p", [Q, Result]), +% rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -523,8 +546,9 @@ len(#state { q = Q }) -> %% -spec(is_empty/1 :: (state()) -> boolean()). is_empty(#state { q = Q }) -> +% rabbit_log:info("is_empty(~p)", [Q]), Result = queue:is_empty(Q), - rabbit_log:info("is_empty(~p) -> ~p", [Q, Result]), +% rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -546,8 +570,9 @@ is_empty(#state { q = Q }) -> %% -> state()). set_ram_duration_target(_, State) -> + rabbit_log:info("set_ram_duration_target(_~p) ->", [State]), Result = State, - rabbit_log:info("set_ram_duration_target(_~p) -> ~p", [State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -561,8 +586,9 @@ set_ram_duration_target(_, State) -> %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). ram_duration(State) -> + rabbit_log:info("ram_duration(~p) ->", [State]), Result = {0, State}, - rabbit_log:info("ram_duration(~p) -> ~p", [State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -574,13 +600,15 @@ ram_duration(State) -> %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -`needs_idle_timeout(#state { on_sync = ?BLANK_SYNC }) -> +needs_idle_timeout(#state { on_sync = ?BLANK_SYNC }) -> + rabbit_log:info("needs_idle_timeout(_) ->"), Result = false, - rabbit_log:info("needs_idle_timeout(_) -> ~p", [Result]), + rabbit_log:info(" -> ~p", [Result]), Result; needs_idle_timeout(_) -> + rabbit_log:info("needs_idle_timeout(_) ->"), Result = true, - rabbit_log:info("needs_idle_timeout(_) -> ~p", [Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -593,8 +621,9 @@ needs_idle_timeout(_) -> %% -spec(idle_timeout/1 :: (state()) -> state()). idle_timeout(State) -> + rabbit_log:info("idle_timeout(~p) ->", [State]), Result = tx_commit_index_state(State), - rabbit_log:info("idle_timeout(~p) -> ~p", [State, Result]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -607,7 +636,8 @@ idle_timeout(State) -> handle_pre_hibernate(State) -> Result = State, - rabbit_log:info("handle_pre_hibernate(~p) -> ~p", [State, Result]), + rabbit_log:info("handle_pre_hibernate(~p) ->", [State]), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -619,16 +649,17 @@ handle_pre_hibernate(State) -> %% -spec(status/1 :: (state()) -> [{atom(), any()}]). status(#state { mnesiaTableName = MnesiaTableName, - q = Q, - next_seq_id = NextSeqId, - pending_ack_dict = PAD, - on_sync = #sync { funs = Funs }}) -> + q = Q, + next_seq_id = NextSeqId, + pending_ack_dict = PAD, + on_sync = #sync { funs = Funs }}) -> + rabbit_log:info("status(_) ->"), Result = [{mnesiaTableName, MnesiaTableName}, - {len, queue:len(Q)}, - {next_seq_id, NextSeqId}, - {pending_acks, dict:size(PAD)}, - {outstanding_txns, length(Funs)}], - rabbit_log:info("status(_) -> ~p", [Result]), + {len, queue:len(Q)}, + {next_seq_id, NextSeqId}, + {pending_acks, dict:size(PAD)}, + {outstanding_txns, length(Funs)}], + rabbit_log:info(" ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -728,11 +759,11 @@ tx_commit_index_state(State = #state { state(). publish_state(Msg = #basic_message { guid = Guid }, - Props = - #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, - State = #state { - q = Q, next_seq_id = SeqId, unconfirmed = Unconfirmed }) -> + Props = + #message_properties { needs_confirming = NeedsConfirming }, + IsDelivered, + State = #state { + q = Q, next_seq_id = SeqId, unconfirmed = Unconfirmed }) -> State #state { q = queue:in( (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), @@ -746,7 +777,7 @@ publish_state(Msg = #basic_message { guid = Guid }, -spec record_pending_ack_state(m(), state()) -> state(). record_pending_ack_state(M = #m { seq_id = SeqId }, - State = #state { pending_ack_dict = PAD }) -> + State = #state { pending_ack_dict = PAD }) -> State #state { pending_ack_dict = dict:store(SeqId, M, PAD) }. % -spec remove_pending_acks_state(state()) -> state(). @@ -756,8 +787,8 @@ remove_pending_acks_state(State = #state { pending_ack_dict = PAD }) -> State #state { pending_ack_dict = dict:new() }. -spec internal_ack(fun (([rabbit_guid:guid()], state()) -> state()), - [rabbit_guid:guid()], - state()) -> + [rabbit_guid:guid()], + state()) -> {[rabbit_guid:guid()], state()}. internal_ack(_, [], State) -> {[], State}; -- cgit v1.2.1 From e21243eac8a04ca99fe607ba6921ab37f1beff4a Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 17 Jan 2011 11:07:54 -0800 Subject: Simplifying a couple of data structures. --- src/rabbit_mnesia_queue.erl | 72 ++++++++++----------------------------------- 1 file changed, 16 insertions(+), 56 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 4e6f32c8..c22dfbf8 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -84,10 +84,6 @@ q, % A temporary in-RAM queue of Ms next_seq_id, % The next seq_id to use to build an M pending_ack_dict, % Map from seq_id to M, pending ack - - %% redo the following? - unconfirmed, - on_sync }). @@ -122,7 +118,6 @@ q :: queue(), next_seq_id :: seq_id(), pending_ack_dict :: dict(), - unconfirmed :: gb_set(), on_sync :: sync() }). -type(m() :: #m { msg :: rabbit_types:basic_message(), @@ -132,9 +127,9 @@ -type(tx() :: #tx { pending_messages :: [{rabbit_types:basic_message(), rabbit_types:message_properties()}], - pending_acks :: [[ack()]] }). + pending_acks :: [ack()] }). --type(sync() :: #sync { acks :: [[seq_id()]], +-type(sync() :: #sync { acks :: [seq_id()], pubs :: [{message_properties_transformer(), [rabbit_types:basic_message()]}], funs :: [fun (() -> any())] }). @@ -208,7 +203,6 @@ init(QueueName, _IsDurable, _Recover) -> q = queue:new(), next_seq_id = 0, pending_ack_dict = dict:new(), - unconfirmed = gb_sets:new(), on_sync = ?BLANK_SYNC }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -301,12 +295,7 @@ publish_delivered(false, _, _, State) -> Result = {blank_ack, State}, rabbit_log:info(" -> ~p", [Result]), Result; -publish_delivered(true, - Msg = #basic_message { guid = Guid }, - Props = #message_properties { - needs_confirming = NeedsConfirming }, - State = #state { next_seq_id = SeqId, - unconfirmed = Unconfirmed }) -> +publish_delivered(true, Msg, Props, State = #state { next_seq_id = SeqId }) -> rabbit_log:info("publish_delivered(true, "), rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), @@ -315,10 +304,7 @@ publish_delivered(true, {SeqId, (record_pending_ack_state( ((m(Msg, SeqId, Props)) #m { is_delivered = true }), State)) - #state { - next_seq_id = SeqId + 1, - unconfirmed = - gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) }}, + #state { next_seq_id = SeqId + 1 }}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -409,7 +395,7 @@ internal_fetch(AckRequired, %% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). ack(AckTags, State) -> - rabbit_log:info("ack(",), + rabbit_log:info("ack("), rabbit_log:info("~p,", [AckTags]), rabbit_log:info(" ~p) ->", [State]), {Guids, State1} = internal_ack(AckTags, State), @@ -420,14 +406,7 @@ ack(AckTags, State) -> -spec(internal_ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). internal_ack(AckTags, State) -> - {Guids, State1} = - internal_ack( - fun (#m { msg = #basic_message { guid = Guid }}, S) -> - remove_confirms_state(gb_sets:singleton(Guid), S) - end, - AckTags, - State), - {Guids, State1}. + internal_ack(fun (_, S) -> S end, AckTags, State). %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. @@ -459,7 +438,7 @@ tx_publish(Txn, Msg, Props, State) -> tx_ack(Txn, AckTags, State) -> rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, AckTags, State]), Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), + store_tx(Txn, Tx #tx { pending_acks = lists:append(AckTags, Acks) }), Result = State, rabbit_log:info(" -> ~p", [Result]), Result. @@ -476,7 +455,7 @@ tx_rollback(Txn, State) -> rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, State]), #tx { pending_acks = AckTags } = lookup_tx(Txn), erase_tx(Txn), - Result = {lists:append(AckTags), State}, + Result = {AckTags, State}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -499,10 +478,9 @@ tx_commit(Txn, Fun, PropsFun, State) -> "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, Fun, PropsFun, State]), #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), - AckTags1 = lists:append(AckTags), Result = - {AckTags1, - internal_tx_commit_store_state(Pubs, AckTags1, Fun, PropsFun, State)}, + {AckTags, + internal_tx_commit_store_state(Pubs, AckTags, Fun, PropsFun, State)}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -666,11 +644,6 @@ status(#state { mnesiaTableName = MnesiaTableName, %% Minor helpers %%---------------------------------------------------------------------------- -%% When requeueing, we re-add a guid to the unconfirmed set. - -gb_sets_maybe_insert(false, _, Set) -> Set; -gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). - -spec m(rabbit_types:basic_message(), seq_id(), rabbit_types:message_properties()) -> @@ -723,7 +696,7 @@ internal_tx_commit_store_state(Pubs, (tx_commit_index_state( State #state { on_sync = - #sync { acks = [AckTags], + #sync { acks = AckTags, pubs = [{PropsFun, Pubs}], funs = [Fun] }})) #state { on_sync = OnSync }. @@ -735,7 +708,7 @@ tx_commit_index_state(State = #state { on_sync = #sync { acks = SAcks, pubs = SPubs, funs = SFuns }}) -> - {_, State1} = internal_ack(lists:append(SAcks), State), + {_, State1} = internal_ack(SAcks, State), {_, State2} = lists:foldl( fun ({Msg, Props}, {SeqIds, S}) -> @@ -758,17 +731,14 @@ tx_commit_index_state(State = #state { state()) -> state(). -publish_state(Msg = #basic_message { guid = Guid }, - Props = - #message_properties { needs_confirming = NeedsConfirming }, +publish_state(Msg, + Props, IsDelivered, - State = #state { - q = Q, next_seq_id = SeqId, unconfirmed = Unconfirmed }) -> + State = #state { q = Q, next_seq_id = SeqId }) -> State #state { q = queue:in( (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), - next_seq_id = SeqId + 1, - unconfirmed = gb_sets_maybe_insert(NeedsConfirming, Guid, Unconfirmed) }. + next_seq_id = SeqId + 1 }. %%---------------------------------------------------------------------------- %% Internal gubbins for acks @@ -809,13 +779,3 @@ internal_ack(Fun, AckTags, State) -> accumulate_ack(#m { msg = #basic_message { guid = Guid }}, AllGuids) -> [Guid | AllGuids]. - -%%---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%%---------------------------------------------------------------------------- - --spec remove_confirms_state(gb_set(), state()) -> state(). - -remove_confirms_state(GuidSet, State = #state { unconfirmed = UC }) -> - State #state { unconfirmed = gb_sets:difference(UC, GuidSet) }. - -- cgit v1.2.1 From 1942d3b88b76419fcf0eaf64609d3ba037c8d402 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 18 Jan 2011 14:45:35 -0800 Subject: All Erlang and QPid tests now pass. --- src/rabbit_mnesia_queue.erl | 145 +++++++++++++++++--------------------------- 1 file changed, 54 insertions(+), 91 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index c22dfbf8..aaa8f9b3 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -39,56 +39,41 @@ idle_timeout/1, handle_pre_hibernate/1, status/1]). %%---------------------------------------------------------------------------- -%% This is Take Three of a simple initial Mnesia implementation of the -%% rabbit_backing_queue behavior. This version was created by starting -%% with rabbit_variable_queue.erl, and removing everything unneeded. +%% This is a simple implementation of the rabbit_backing_queue +%% behavior, completely in RAM. %% %% This will eventually be structured as a plug-in instead of an extra %% module in the middle of the server tree.... %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- -%% In the queue we separate messages that are pending delivery and -%% messages that are pending acks. This ensures that purging (deleting -%% the former) and deletion (deleting both) are both cheap and do not -%% require any scanning through lists of messages. +%% We separate messages pending delivery from messages pending +%% acks. This ensures that purging (deleting the former) and deletion +%% (deleting both) are both cheap and do not require scanning through +%% lists of messages. %% -%% This module usually wraps messages into M records, containing the -%% messages themselves and additional information. +%% This module wraps messages into M records for internal use, +%% containing the messages themselves and additional information. %% -%% Pending acks are recorded in memory as M records. +%% Pending acks are also recorded in memory as M records. %% -%% All queues are durable in this version, no matter how they are -%% requested. (We will need to remember the requested type in the -%% future, to catch accidental redeclares.) All messages are transient -%% (non-persistent) in this interim version, in order to rip out all -%% of the old backing code before inserting the new backing -%% code. (This breaks some tests, since all messages are temporarily -%% dropped on restart.) -%% -%% May need to add code to throw away transient messages upon -%% initialization, depending on storage strategy. +%% All queues are non-durable in this version, and all messages are +%% transient (non-persistent). (This breaks some Java tests for +%% durable queues.) %% %%---------------------------------------------------------------------------- -%% BUG: I've temporarily ripped out most of the calls to Mnesia while -%% debugging problems with the Mnesia documentation. (Ask me sometimes -%% over drinks to explain how just plain wrong it is.) I've figured -%% out the real type signatures now and will soon put everything back -%% in. - -behaviour(rabbit_backing_queue). -record(state, % The in-RAM queue state - { mnesiaTableName, % An atom naming the associated Mnesia table - q, % A temporary in-RAM queue of Ms + { q, % A temporary in-RAM queue of Ms next_seq_id, % The next seq_id to use to build an M pending_ack_dict, % Map from seq_id to M, pending ack on_sync }). -record(m, % A wrapper aroung a msg - { seq_id, % The seq_id for the msg (the Mnesia index) + { seq_id, % The seq_id for the msg msg, % The msg itself props, % The message properties is_delivered % Has the msg been delivered? (for reporting) @@ -114,8 +99,7 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(state() :: #state { mnesiaTableName :: atom(), - q :: queue(), +-type(state() :: #state { q :: queue(), next_seq_id :: seq_id(), pending_ack_dict :: dict(), on_sync :: sync() }). @@ -146,11 +130,10 @@ %% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. %%---------------------------------------------------------------------------- -%% start/1 is called on startup with a list of (durable) queue -%% names. The queues aren't being started at this point, but this call -%% allows the backing queue to perform any checking necessary for the -%% consistency of those queues, or initialise any other shared -%% resources. +%% start/1 promises that a list of (durable) queue names will be +%% started in the near future. This lets us perform early checking +%% necessary for the consistency of those queues or initialise other +%% shared resources. %% %% This function should be called only from outside this module. %% @@ -166,10 +149,8 @@ start(_DurableQueues) -> ok. %%---------------------------------------------------------------------------- -%% stop/0 is called to tear down any state/resources. NB: -%% Implementations should not depend on this function being called on -%% shutdown and instead should hook into the rabbit supervision -%% hierarchy. +%% stop/0 tears down all state/resources upon shutdown. It might not +%% be called. %% %% This function should be called only from outside this module. %% @@ -181,7 +162,8 @@ stop() -> ok. %%---------------------------------------------------------------------------- -%% init/3 initializes one backing queue and its state. +%% init/3 creates one backing queue, returning its state. Names are +%% local to the vhost, and must be unique. %% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) @@ -189,18 +171,11 @@ stop() -> %% %% This function should be called only from outside this module. -%% BUG: Should do quite a bit more upon recovery.... - -%% BUG: Each queue name becomes an atom (to name a table), and atoms -%% are never GC'd - %% BUG: Need to provide back-pressure when queue is filling up. init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~p, _, _) ->", [QueueName]), - MnesiaTableName = mnesiaTableName(QueueName), - Result = #state { mnesiaTableName = MnesiaTableName, - q = queue:new(), + Result = #state { q = queue:new(), next_seq_id = 0, pending_ack_dict = dict:new(), on_sync = ?BLANK_SYNC }, @@ -360,10 +335,10 @@ fetch(AckRequired, State) -> -spec internal_queue_out(fun ((m(), state()) -> T), state()) -> {empty, state()} | T. -internal_queue_out(Fun, State = #state { q = Q }) -> +internal_queue_out(F, State = #state { q = Q }) -> case queue:out(Q) of {empty, _} -> {empty, State}; - {{value, M}, Qa} -> Fun(M, State #state { q = Qa }) + {{value, M}, Qa} -> F(M, State #state { q = Qa }) end. -spec internal_fetch/3 :: (ack_required(), m(), state()) -> @@ -383,7 +358,7 @@ internal_fetch(AckRequired, M #m { is_delivered = true }, State)}; false -> {blank_ack, State} end, - {{Msg, IsDelivered, AckTag, queue:len(Q) - 1}, State1}. + {{Msg, IsDelivered, AckTag, queue:len(Q)}, State1}. %%---------------------------------------------------------------------------- %% ack/2 acknowledges messages. Acktags supplied are for messages @@ -460,7 +435,7 @@ tx_rollback(Txn, State) -> Result. %%---------------------------------------------------------------------------- -%% tx_commit/4 commits a transaction. The Fun passed in must be called +%% tx_commit/4 commits a transaction. The F passed in must be called %% once the messages have really been commited. This CPS permits the %% possibility of commit coalescing. %% @@ -473,14 +448,14 @@ tx_rollback(Txn, State) -> %% state()) %% -> {[ack()], state()}). -tx_commit(Txn, Fun, PropsFun, State) -> +tx_commit(Txn, F, PropsF, State) -> rabbit_log:info( - "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, Fun, PropsFun, State]), + "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, State]), #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), Result = {AckTags, - internal_tx_commit_store_state(Pubs, AckTags, Fun, PropsFun, State)}, + internal_tx_commit_store_state(Pubs, AckTags, F, PropsF, State)}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -493,12 +468,12 @@ tx_commit(Txn, Fun, PropsFun, State) -> %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). -requeue(AckTags, PropsFun, State) -> - rabbit_log:info("requeue(~p, ~p, ~p) ->", [AckTags, PropsFun, State]), +requeue(AckTags, PropsF, State) -> + rabbit_log:info("requeue(~p, ~p, ~p) ->", [AckTags, PropsF, State]), {_, State1} = internal_ack( fun (#m { msg = Msg, props = Props }, S) -> - publish_state(Msg, PropsFun(Props), true, S) + publish_state(Msg, PropsF(Props), true, S) end, AckTags, State), @@ -626,17 +601,15 @@ handle_pre_hibernate(State) -> %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(#state { mnesiaTableName = MnesiaTableName, - q = Q, +status(#state { q = Q, next_seq_id = NextSeqId, pending_ack_dict = PAD, - on_sync = #sync { funs = Funs }}) -> + on_sync = #sync { funs = Fs }}) -> rabbit_log:info("status(_) ->"), - Result = [{mnesiaTableName, MnesiaTableName}, - {len, queue:len(Q)}, + Result = [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {pending_acks, dict:size(PAD)}, - {outstanding_txns, length(Funs)}], + {outstanding_txns, length(Fs)}], rabbit_log:info(" ~p", [Result]), Result. @@ -668,15 +641,6 @@ store_tx(Txn, Tx) -> put({txn, Txn}, Tx), ok. erase_tx(Txn) -> erase({txn, Txn}), ok. -%% Convert a queue name (a record) into an Mnesia table name (an atom). - -%% TODO: Import correct type. - --spec mnesiaTableName(_) -> atom(). - -mnesiaTableName(QueueName) -> - list_to_atom(lists:flatten(io_lib:format("~p", [QueueName]))). - %%---------------------------------------------------------------------------- %% Internal major helpers for Public API %%---------------------------------------------------------------------------- @@ -690,15 +654,15 @@ mnesiaTableName(QueueName) -> internal_tx_commit_store_state(Pubs, AckTags, - Fun, - PropsFun, + F, + PropsF, State = #state { on_sync = OnSync }) -> (tx_commit_index_state( State #state { on_sync = #sync { acks = AckTags, - pubs = [{PropsFun, Pubs}], - funs = [Fun] }})) + pubs = [{PropsF, Pubs}], + funs = [F] }})) #state { on_sync = OnSync }. -spec tx_commit_index_state(state()) -> state(). @@ -707,7 +671,7 @@ tx_commit_index_state(State = #state { on_sync = ?BLANK_SYNC }) -> State; tx_commit_index_state(State = #state { on_sync = #sync { acks = SAcks, pubs = SPubs, - funs = SFuns }}) -> + funs = SFs }}) -> {_, State1} = internal_ack(SAcks, State), {_, State2} = lists:foldl( @@ -715,10 +679,10 @@ tx_commit_index_state(State = #state { {SeqIds, publish_state(Msg, Props, false, S)} end, {[], State1}, - [{Msg, Fun(Props)} || - {Fun, PubsN} <- lists:reverse(SPubs), + [{Msg, F(Props)} || + {F, PubsN} <- lists:reverse(SPubs), {Msg, Props} <- lists:reverse(PubsN)]), - _ = [ Fun() || Fun <- lists:reverse(SFuns) ], + _ = [ F() || F <- lists:reverse(SFs) ], State2 #state { on_sync = ?BLANK_SYNC }. %%---------------------------------------------------------------------------- @@ -753,7 +717,7 @@ record_pending_ack_state(M = #m { seq_id = SeqId }, % -spec remove_pending_acks_state(state()) -> state(). remove_pending_acks_state(State = #state { pending_ack_dict = PAD }) -> - _ = dict:fold(fun (_, V, Acc) -> accumulate_ack(V, Acc) end, [], PAD), + _ = dict:fold(fun (_, M, Acc) -> [m_guid(M) | Acc] end, [], PAD), State #state { pending_ack_dict = dict:new() }. -spec internal_ack(fun (([rabbit_guid:guid()], state()) -> state()), @@ -762,20 +726,19 @@ remove_pending_acks_state(State = #state { pending_ack_dict = PAD }) -> {[rabbit_guid:guid()], state()}. internal_ack(_, [], State) -> {[], State}; -internal_ack(Fun, AckTags, State) -> +internal_ack(F, AckTags, State) -> {AllGuids, State1} = lists:foldl( fun (SeqId, {Acc, S = #state { pending_ack_dict = PAD }}) -> - AckEntry = dict:fetch(SeqId, PAD), - {accumulate_ack(AckEntry, Acc), - Fun(AckEntry, - S #state { pending_ack_dict = dict:erase(SeqId, PAD)})} + M = dict:fetch(SeqId, PAD), + {[m_guid(M) | Acc], + F(M, S #state { pending_ack_dict = dict:erase(SeqId, PAD)})} end, {[], State}, AckTags), {lists:reverse(AllGuids), State1}. --spec accumulate_ack(m(), [rabbit_guid:guid()]) -> [rabbit_guid:guid()]. +-spec m_guid(m()) -> rabbit_guid:guid(). + +m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. -accumulate_ack(#m { msg = #basic_message { guid = Guid }}, AllGuids) -> - [Guid | AllGuids]. -- cgit v1.2.1 From 500cda2562170bd5d23b94dea283cfa8e28e8c5d Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 18 Jan 2011 15:18:41 -0800 Subject: Looking for some recent errors. --- src/rabbit_mnesia_queue.erl | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index aaa8f9b3..5cc7bd92 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -306,12 +306,12 @@ dropwhile(Pred, State) -> dropwhile_state(Pred, State) -> internal_queue_out( - fun (M = #m { props = Props }, S = #state { q = Q }) -> + fun (M = #m { props = Props }, Si = #state { q = Q }) -> case Pred(Props) of true -> - {_, S1} = internal_fetch(false, M, S), - dropwhile_state(Pred, S1); - false -> {ok, S #state {q = queue:in_r(M, Q) }} + {_, Si1} = internal_fetch(false, M, Si), + dropwhile_state(Pred, Si1); + false -> {ok, Si #state {q = queue:in_r(M, Q) }} end end, State). @@ -328,7 +328,7 @@ fetch(AckRequired, State) -> rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, State]), Result = internal_queue_out( - fun (M, S) -> internal_fetch(AckRequired, M, S) end, State), + fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, State), rabbit_log:info(" -> ~p", [Result]), Result. @@ -381,7 +381,7 @@ ack(AckTags, State) -> -spec(internal_ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). internal_ack(AckTags, State) -> - internal_ack(fun (_, S) -> S end, AckTags, State). + internal_ack(fun (_, Si) -> Si end, AckTags, State). %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. @@ -472,8 +472,8 @@ requeue(AckTags, PropsF, State) -> rabbit_log:info("requeue(~p, ~p, ~p) ->", [AckTags, PropsF, State]), {_, State1} = internal_ack( - fun (#m { msg = Msg, props = Props }, S) -> - publish_state(Msg, PropsF(Props), true, S) + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) end, AckTags, State), @@ -675,8 +675,8 @@ tx_commit_index_state(State = #state { {_, State1} = internal_ack(SAcks, State), {_, State2} = lists:foldl( - fun ({Msg, Props}, {SeqIds, S}) -> - {SeqIds, publish_state(Msg, Props, false, S)} + fun ({Msg, Props}, {SeqIds, Si}) -> + {SeqIds, publish_state(Msg, Props, false, Si)} end, {[], State1}, [{Msg, F(Props)} || @@ -729,10 +729,11 @@ internal_ack(_, [], State) -> {[], State}; internal_ack(F, AckTags, State) -> {AllGuids, State1} = lists:foldl( - fun (SeqId, {Acc, S = #state { pending_ack_dict = PAD }}) -> + fun (SeqId, {Acc, Si = #state { pending_ack_dict = PAD }}) -> M = dict:fetch(SeqId, PAD), {[m_guid(M) | Acc], - F(M, S #state { pending_ack_dict = dict:erase(SeqId, PAD)})} + F(M, + Si #state { pending_ack_dict = dict:erase(SeqId, PAD)})} end, {[], State}, AckTags), -- cgit v1.2.1 From be9a2fa9ea689836af4690452064a5636065f2b4 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 18 Jan 2011 15:32:30 -0800 Subject: Found one recently-introduced bug. --- src/rabbit_mnesia_queue.erl | 270 ++++++++++++++++++++++---------------------- 1 file changed, 133 insertions(+), 137 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 5cc7bd92..979b9da8 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -65,7 +65,7 @@ -behaviour(rabbit_backing_queue). --record(state, % The in-RAM queue state +-record(s, % The in-RAM queue state { q, % A temporary in-RAM queue of Ms next_seq_id, % The next seq_id to use to build an M pending_ack_dict, % Map from seq_id to M, pending ack @@ -99,10 +99,11 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(state() :: #state { q :: queue(), - next_seq_id :: seq_id(), - pending_ack_dict :: dict(), - on_sync :: sync() }). +-type(s() :: #s { q :: queue(), + next_seq_id :: seq_id(), + pending_ack_dict :: dict(), + on_sync :: sync() }). +-type(state() :: s()). -type(m() :: #m { msg :: rabbit_types:basic_message(), seq_id :: seq_id(), @@ -122,8 +123,6 @@ %% -endif. --define(BLANK_SYNC, #sync { acks = [], pubs = [], funs = [] }). - %%---------------------------------------------------------------------------- %% Public API %% @@ -175,10 +174,10 @@ stop() -> init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~p, _, _) ->", [QueueName]), - Result = #state { q = queue:new(), - next_seq_id = 0, - pending_ack_dict = dict:new(), - on_sync = ?BLANK_SYNC }, + Result = #s { q = queue:new(), + next_seq_id = 0, + pending_ack_dict = dict:new(), + on_sync = #sync { acks = [], pubs = [], funs = [] } }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -190,9 +189,9 @@ init(QueueName, _IsDurable, _Recover) -> %% %% -spec(terminate/1 :: (state()) -> state()). -terminate(State) -> - Result = remove_pending_acks_state(tx_commit_index_state(State)), - rabbit_log:info("terminate(~p) ->", [State]), +terminate(S) -> + Result = remove_pending_acks_state(tx_commit_state(S)), + rabbit_log:info("terminate(~p) ->", [S]), rabbit_log:info(" -> ~p", [Result]), Result. @@ -209,10 +208,10 @@ terminate(State) -> %% the only difference between purge and delete is that delete also %% needs to delete everything that's been delivered and not ack'd. -delete_and_terminate(State) -> - rabbit_log:info("delete_and_terminate(~p) ->", [State]), - {_, State1} = purge(State), - Result = remove_pending_acks_state(State1), +delete_and_terminate(S) -> + rabbit_log:info("delete_and_terminate(~p) ->", [S]), + {_, S1} = purge(S), + Result = remove_pending_acks_state(S1), rabbit_log:info(" -> ~p", [Result]), Result. @@ -224,9 +223,9 @@ delete_and_terminate(State) -> %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(State = #state { q = Q }) -> - rabbit_log:info("purge(~p) ->", [State]), - Result = {queue:len(Q), State #state { q = queue:new() }}, +purge(S = #s { q = Q }) -> + rabbit_log:info("purge(~p) ->", [S]), + Result = {queue:len(Q), S #s { q = queue:new() }}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -241,12 +240,12 @@ purge(State = #state { q = Q }) -> %% state()) %% -> state()). -publish(Msg, Props, State) -> +publish(Msg, Props, S) -> rabbit_log:info("publish("), rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), - rabbit_log:info(" ~p) ->", [State]), - Result = publish_state(Msg, Props, false, State), + rabbit_log:info(" ~p) ->", [S]), + Result = publish_state(Msg, Props, false, S), rabbit_log:info(" -> ~p", [Result]), Result. @@ -264,22 +263,22 @@ publish(Msg, Props, State) -> %% state()) %% -> {ack(), state()}). -publish_delivered(false, _, _, State) -> +publish_delivered(false, _, _, S) -> rabbit_log:info("publish_delivered(false, _, _,"), - rabbit_log:info(" ~p) ->", [State]), - Result = {blank_ack, State}, + rabbit_log:info(" ~p) ->", [S]), + Result = {blank_ack, S}, rabbit_log:info(" -> ~p", [Result]), Result; -publish_delivered(true, Msg, Props, State = #state { next_seq_id = SeqId }) -> +publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> rabbit_log:info("publish_delivered(true, "), rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), - rabbit_log:info(" ~p) ->", [State]), + rabbit_log:info(" ~p) ->", [S]), Result = {SeqId, (record_pending_ack_state( - ((m(Msg, SeqId, Props)) #m { is_delivered = true }), State)) - #state { next_seq_id = SeqId + 1 }}, + ((m(Msg, SeqId, Props)) #m { is_delivered = true }), S)) + #s { next_seq_id = SeqId + 1 }}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -293,28 +292,28 @@ publish_delivered(true, Msg, Props, State = #state { next_seq_id = SeqId }) -> %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) %% -> state()). -dropwhile(Pred, State) -> - rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, State]), - {ok, State1} = dropwhile_state(Pred, State), - Result = State1, +dropwhile(Pred, S) -> + rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), + {ok, S1} = dropwhile_state(Pred, S), + Result = S1, rabbit_log:info(" -> ~p", [Result]), Result. -spec(dropwhile_state/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> {ok, state()}). + (fun ((rabbit_types:message_properties()) -> boolean()), s()) + -> {ok, s()}). -dropwhile_state(Pred, State) -> +dropwhile_state(Pred, S) -> internal_queue_out( - fun (M = #m { props = Props }, Si = #state { q = Q }) -> + fun (M = #m { props = Props }, Si = #s { q = Q }) -> case Pred(Props) of true -> {_, Si1} = internal_fetch(false, M, Si), dropwhile_state(Pred, Si1); - false -> {ok, Si #state {q = queue:in_r(M, Q) }} + false -> {ok, Si #s {q = queue:in_r(M, Q) }} end end, - State). + S). %%---------------------------------------------------------------------------- %% fetch/2 produces the next message. @@ -324,41 +323,40 @@ dropwhile_state(Pred, State) -> %% -spec(fetch/2 :: (ack_required(), state()) -> %% {ok | fetch_result(), state()}). -fetch(AckRequired, State) -> - rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, State]), +fetch(AckRequired, S) -> + rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), Result = internal_queue_out( - fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, State), + fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, S), rabbit_log:info(" -> ~p", [Result]), Result. -spec internal_queue_out(fun ((m(), state()) -> T), state()) -> {empty, state()} | T. -internal_queue_out(F, State = #state { q = Q }) -> +internal_queue_out(F, S = #s { q = Q }) -> case queue:out(Q) of - {empty, _} -> {empty, State}; - {{value, M}, Qa} -> F(M, State #state { q = Qa }) + {empty, _} -> {empty, S}; + {{value, M}, Qa} -> F(M, S #s { q = Qa }) end. --spec internal_fetch/3 :: (ack_required(), m(), state()) -> - {fetch_result(), state()}. +-spec internal_fetch/3 :: (ack_required(), m(), s()) -> {fetch_result(), s()}. internal_fetch(AckRequired, M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, - State = #state { q = Q }) -> - {AckTag, State1} = + S = #s { q = Q }) -> + {AckTag, S1} = case AckRequired of true -> {SeqId, record_pending_ack_state( - M #m { is_delivered = true }, State)}; - false -> {blank_ack, State} + M #m { is_delivered = true }, S)}; + false -> {blank_ack, S} end, - {{Msg, IsDelivered, AckTag, queue:len(Q)}, State1}. + {{Msg, IsDelivered, AckTag, queue:len(Q)}, S1}. %%---------------------------------------------------------------------------- %% ack/2 acknowledges messages. Acktags supplied are for messages @@ -369,19 +367,19 @@ internal_fetch(AckRequired, %% %% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). -ack(AckTags, State) -> +ack(AckTags, S) -> rabbit_log:info("ack("), rabbit_log:info("~p,", [AckTags]), - rabbit_log:info(" ~p) ->", [State]), - {Guids, State1} = internal_ack(AckTags, State), - Result = {Guids, State1}, + rabbit_log:info(" ~p) ->", [S]), + {Guids, S1} = internal_ack(AckTags, S), + Result = {Guids, S1}, rabbit_log:info(" -> ~p", [Result]), Result. --spec(internal_ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). +-spec(internal_ack/2 :: ([ack()], s()) -> {[rabbit_guid:guid()], s()}). -internal_ack(AckTags, State) -> - internal_ack(fun (_, Si) -> Si end, AckTags, State). +internal_ack(AckTags, S) -> + internal_ack(fun (_, Si) -> Si end, AckTags, S). %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. @@ -395,11 +393,11 @@ internal_ack(AckTags, State) -> %% state()) %% -> state()). -tx_publish(Txn, Msg, Props, State) -> - rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, State]), +tx_publish(Txn, Msg, Props, S) -> + rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, Props} | Pubs] }), - Result = State, + Result = S, rabbit_log:info(" -> ~p", [Result]), Result. @@ -410,11 +408,11 @@ tx_publish(Txn, Msg, Props, State) -> %% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). -tx_ack(Txn, AckTags, State) -> - rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, AckTags, State]), +tx_ack(Txn, AckTags, S) -> + rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, AckTags, S]), Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_acks = lists:append(AckTags, Acks) }), - Result = State, + Result = S, rabbit_log:info(" -> ~p", [Result]), Result. @@ -426,11 +424,11 @@ tx_ack(Txn, AckTags, State) -> %% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). -tx_rollback(Txn, State) -> - rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, State]), +tx_rollback(Txn, S) -> + rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), #tx { pending_acks = AckTags } = lookup_tx(Txn), erase_tx(Txn), - Result = {AckTags, State}, + Result = {AckTags, S}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -448,14 +446,14 @@ tx_rollback(Txn, State) -> %% state()) %% -> {[ack()], state()}). -tx_commit(Txn, F, PropsF, State) -> +tx_commit(Txn, F, PropsF, S) -> rabbit_log:info( - "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, State]), + "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), Result = {AckTags, - internal_tx_commit_store_state(Pubs, AckTags, F, PropsF, State)}, + internal_tx_commit_store_state(Pubs, AckTags, F, PropsF, S)}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -468,16 +466,16 @@ tx_commit(Txn, F, PropsF, State) -> %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). -requeue(AckTags, PropsF, State) -> - rabbit_log:info("requeue(~p, ~p, ~p) ->", [AckTags, PropsF, State]), - {_, State1} = +requeue(AckTags, PropsF, S) -> + rabbit_log:info("requeue(~p, ~p, ~p) ->", [AckTags, PropsF, S]), + {_, S1} = internal_ack( fun (#m { msg = Msg, props = Props }, Si) -> publish_state(Msg, PropsF(Props), true, Si) end, AckTags, - State), - Result = State1, + S), + Result = S1, rabbit_log:info(" -> ~p", [Result]), Result. @@ -486,7 +484,7 @@ requeue(AckTags, PropsF, State) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(#state { q = Q }) -> +len(#s { q = Q }) -> % rabbit_log:info("len(~p) ->", [Q]), Result = queue:len(Q), % rabbit_log:info(" -> ~p", [Result]), @@ -498,7 +496,7 @@ len(#state { q = Q }) -> %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(#state { q = Q }) -> +is_empty(#s { q = Q }) -> % rabbit_log:info("is_empty(~p)", [Q]), Result = queue:is_empty(Q), % rabbit_log:info(" -> ~p", [Result]), @@ -522,9 +520,9 @@ is_empty(#state { q = Q }) -> %% (('undefined' | 'infinity' | number()), state()) %% -> state()). -set_ram_duration_target(_, State) -> - rabbit_log:info("set_ram_duration_target(_~p) ->", [State]), - Result = State, +set_ram_duration_target(_, S) -> + rabbit_log:info("set_ram_duration_target(_~p) ->", [S]), + Result = S, rabbit_log:info(" -> ~p", [Result]), Result. @@ -538,9 +536,9 @@ set_ram_duration_target(_, State) -> %% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). -ram_duration(State) -> - rabbit_log:info("ram_duration(~p) ->", [State]), - Result = {0, State}, +ram_duration(S) -> + rabbit_log:info("ram_duration(~p) ->", [S]), + Result = {0, S}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -553,7 +551,8 @@ ram_duration(State) -> %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -needs_idle_timeout(#state { on_sync = ?BLANK_SYNC }) -> +needs_idle_timeout(#s { on_sync = + #sync { acks = [], pubs = [], funs = [] } }) -> rabbit_log:info("needs_idle_timeout(_) ->"), Result = false, rabbit_log:info(" -> ~p", [Result]), @@ -573,9 +572,9 @@ needs_idle_timeout(_) -> %% %% -spec(idle_timeout/1 :: (state()) -> state()). -idle_timeout(State) -> - rabbit_log:info("idle_timeout(~p) ->", [State]), - Result = tx_commit_index_state(State), +idle_timeout(S) -> + rabbit_log:info("idle_timeout(~p) ->", [S]), + Result = tx_commit_state(S), rabbit_log:info(" -> ~p", [Result]), Result. @@ -587,9 +586,9 @@ idle_timeout(State) -> %% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -handle_pre_hibernate(State) -> - Result = State, - rabbit_log:info("handle_pre_hibernate(~p) ->", [State]), +handle_pre_hibernate(S) -> + Result = S, + rabbit_log:info("handle_pre_hibernate(~p) ->", [S]), rabbit_log:info(" -> ~p", [Result]), Result. @@ -601,7 +600,7 @@ handle_pre_hibernate(State) -> %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(#state { q = Q, +status(#s { q = Q, next_seq_id = NextSeqId, pending_ack_dict = PAD, on_sync = #sync { funs = Fs }}) -> @@ -649,41 +648,39 @@ erase_tx(Txn) -> erase({txn, Txn}), ok. [seq_id()], fun (() -> any()), message_properties_transformer(), - state()) -> - state(). + s()) -> + s(). internal_tx_commit_store_state(Pubs, AckTags, F, PropsF, - State = #state { on_sync = OnSync }) -> - (tx_commit_index_state( - State #state { - on_sync = - #sync { acks = AckTags, - pubs = [{PropsF, Pubs}], - funs = [F] }})) - #state { on_sync = OnSync }. - --spec tx_commit_index_state(state()) -> state(). - -tx_commit_index_state(State = #state { on_sync = ?BLANK_SYNC }) -> State; -tx_commit_index_state(State = #state { - on_sync = #sync { acks = SAcks, - pubs = SPubs, - funs = SFs }}) -> - {_, State1} = internal_ack(SAcks, State), - {_, State2} = + S = #s { on_sync = OnSync }) -> + (tx_commit_state( + S #s { on_sync = #sync { acks = AckTags, + pubs = [{PropsF, Pubs}], + funs = [F] }})) + #s { on_sync = OnSync }. + +-spec tx_commit_state(s()) -> s(). + +tx_commit_state(S = #s { on_sync = #sync { acks = [], pubs = [], funs = [] } }) -> S; +tx_commit_state(S = #s { + on_sync = #sync { acks = SAcks, + pubs = SPubs, + funs = SFs }}) -> + {_, S1} = internal_ack(SAcks, S), + {_, S2} = lists:foldl( fun ({Msg, Props}, {SeqIds, Si}) -> {SeqIds, publish_state(Msg, Props, false, Si)} end, - {[], State1}, + {[], S1}, [{Msg, F(Props)} || {F, PubsN} <- lists:reverse(SPubs), {Msg, Props} <- lists:reverse(PubsN)]), _ = [ F() || F <- lists:reverse(SFs) ], - State2 #state { on_sync = ?BLANK_SYNC }. + S2 #s { on_sync = #sync { acks = [], pubs = [], funs = [] } }. %%---------------------------------------------------------------------------- %% Internal gubbins for publishing @@ -692,14 +689,14 @@ tx_commit_index_state(State = #state { -spec publish_state(rabbit_types:basic_message(), rabbit_types:message_properties(), boolean(), - state()) -> - state(). + s()) -> + s(). publish_state(Msg, Props, IsDelivered, - State = #state { q = Q, next_seq_id = SeqId }) -> - State #state { + S = #s { q = Q, next_seq_id = SeqId }) -> + S #s { q = queue:in( (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), next_seq_id = SeqId + 1 }. @@ -708,36 +705,35 @@ publish_state(Msg, %% Internal gubbins for acks %%---------------------------------------------------------------------------- --spec record_pending_ack_state(m(), state()) -> state(). +-spec record_pending_ack_state(m(), s()) -> s(). record_pending_ack_state(M = #m { seq_id = SeqId }, - State = #state { pending_ack_dict = PAD }) -> - State #state { pending_ack_dict = dict:store(SeqId, M, PAD) }. + S = #s { pending_ack_dict = PAD }) -> + S #s { pending_ack_dict = dict:store(SeqId, M, PAD) }. -% -spec remove_pending_acks_state(state()) -> state(). +% -spec remove_pending_acks_state(s()) -> s(). -remove_pending_acks_state(State = #state { pending_ack_dict = PAD }) -> +remove_pending_acks_state(S = #s { pending_ack_dict = PAD }) -> _ = dict:fold(fun (_, M, Acc) -> [m_guid(M) | Acc] end, [], PAD), - State #state { pending_ack_dict = dict:new() }. + S #s { pending_ack_dict = dict:new() }. --spec internal_ack(fun (([rabbit_guid:guid()], state()) -> state()), +-spec internal_ack(fun (([rabbit_guid:guid()], s()) -> s()), [rabbit_guid:guid()], - state()) -> - {[rabbit_guid:guid()], state()}. + s()) -> + {[rabbit_guid:guid()], s()}. -internal_ack(_, [], State) -> {[], State}; -internal_ack(F, AckTags, State) -> - {AllGuids, State1} = +internal_ack(_, [], S) -> {[], S}; +internal_ack(F, AckTags, S) -> + {AllGuids, S1} = lists:foldl( - fun (SeqId, {Acc, Si = #state { pending_ack_dict = PAD }}) -> + fun (SeqId, {Acc, Si = #s { pending_ack_dict = PAD }}) -> M = dict:fetch(SeqId, PAD), {[m_guid(M) | Acc], - F(M, - Si #state { pending_ack_dict = dict:erase(SeqId, PAD)})} + F(M, Si #s { pending_ack_dict = dict:erase(SeqId, PAD)})} end, - {[], State}, + {[], S}, AckTags), - {lists:reverse(AllGuids), State1}. + {lists:reverse(AllGuids), S1}. -spec m_guid(m()) -> rabbit_guid:guid(). -- cgit v1.2.1 From 8f133b4c5e3109131f6357ae2d43873d6e53211b Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 18 Jan 2011 15:52:53 -0800 Subject: Noted problems with AckTags --- src/rabbit_mnesia_queue.erl | 113 +++++++++++++++++++++++--------------------- 1 file changed, 59 insertions(+), 54 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 979b9da8..69d9fbf0 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -100,9 +100,9 @@ -type(ack() :: seq_id() | 'blank_ack'). -type(s() :: #s { q :: queue(), - next_seq_id :: seq_id(), - pending_ack_dict :: dict(), - on_sync :: sync() }). + next_seq_id :: seq_id(), + pending_ack_dict :: dict(), + on_sync :: sync() }). -type(state() :: s()). -type(m() :: #m { msg :: rabbit_types:basic_message(), @@ -112,7 +112,7 @@ -type(tx() :: #tx { pending_messages :: [{rabbit_types:basic_message(), rabbit_types:message_properties()}], - pending_acks :: [ack()] }). + pending_acks :: [seq_id()] }). -type(sync() :: #sync { acks :: [seq_id()], pubs :: [{message_properties_transformer(), @@ -175,9 +175,9 @@ stop() -> init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~p, _, _) ->", [QueueName]), Result = #s { q = queue:new(), - next_seq_id = 0, - pending_ack_dict = dict:new(), - on_sync = #sync { acks = [], pubs = [], funs = [] } }, + next_seq_id = 0, + pending_ack_dict = dict:new(), + on_sync = #sync { acks = [], pubs = [], funs = [] } }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -348,7 +348,7 @@ internal_fetch(AckRequired, msg = Msg, is_delivered = IsDelivered }, S = #s { q = Q }) -> - {AckTag, S1} = + {Ack, S1} = case AckRequired of true -> {SeqId, @@ -356,30 +356,31 @@ internal_fetch(AckRequired, M #m { is_delivered = true }, S)}; false -> {blank_ack, S} end, - {{Msg, IsDelivered, AckTag, queue:len(Q)}, S1}. + {{Msg, IsDelivered, Ack, queue:len(Q)}, S1}. %%---------------------------------------------------------------------------- -%% ack/2 acknowledges messages. Acktags supplied are for messages -%% which can now be forgotten about. Must return 1 guid per Ack, in -%% the same order as Acks. +%% ack/2 acknowledges messages names by SeqIds. Maps SeqIds to guids +%% upon return. %% %% This function should be called only from outside this module. %% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% %% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). -ack(AckTags, S) -> +ack(SeqIds, S) -> rabbit_log:info("ack("), - rabbit_log:info("~p,", [AckTags]), + rabbit_log:info("~p,", [SeqIds]), rabbit_log:info(" ~p) ->", [S]), - {Guids, S1} = internal_ack(AckTags, S), + {Guids, S1} = internal_ack(SeqIds, S), Result = {Guids, S1}, rabbit_log:info(" -> ~p", [Result]), Result. --spec(internal_ack/2 :: ([ack()], s()) -> {[rabbit_guid:guid()], s()}). +-spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). -internal_ack(AckTags, S) -> - internal_ack(fun (_, Si) -> Si end, AckTags, S). +internal_ack(SeqIds, S) -> + internal_ack(fun (_, Si) -> Si end, SeqIds, S). %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. @@ -406,12 +407,14 @@ tx_publish(Txn, Msg, Props, S) -> %% %% This function should be called only from outside this module. %% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). -tx_ack(Txn, AckTags, S) -> - rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, AckTags, S]), - Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_acks = lists:append(AckTags, Acks) }), +tx_ack(Txn, SeqIds, S) -> + rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), + Tx = #tx { pending_acks = SeqIds0 } = lookup_tx(Txn), + store_tx(Txn, Tx #tx { pending_acks = lists:append(SeqIds, SeqIds0) }), Result = S, rabbit_log:info(" -> ~p", [Result]), Result. @@ -422,13 +425,15 @@ tx_ack(Txn, AckTags, S) -> %% %% This function should be called only from outside this module. %% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, S) -> rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), - #tx { pending_acks = AckTags } = lookup_tx(Txn), + #tx { pending_acks = SeqIds } = lookup_tx(Txn), erase_tx(Txn), - Result = {AckTags, S}, + Result = {SeqIds, S}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -439,6 +444,8 @@ tx_rollback(Txn, S) -> %% %% This function should be called only from outside this module. %% +%% The following spec is wrong, blank_acks cannot be returned. +%% %% -spec(tx_commit/4 :: %% (rabbit_types:txn(), %% fun (() -> any()), @@ -449,11 +456,9 @@ tx_rollback(Txn, S) -> tx_commit(Txn, F, PropsF, S) -> rabbit_log:info( "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), + #tx { pending_acks = SeqIds, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), - Result = - {AckTags, - internal_tx_commit_store_state(Pubs, AckTags, F, PropsF, S)}, + Result = {SeqIds, internal_tx_commit_state(Pubs, SeqIds, F, PropsF, S)}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -463,17 +468,19 @@ tx_commit(Txn, F, PropsF, S) -> %% %% This function should be called only from outside this module. %% +%% The following spec is wrong, as blank_acks cannot be passed back in. +%% %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). -requeue(AckTags, PropsF, S) -> - rabbit_log:info("requeue(~p, ~p, ~p) ->", [AckTags, PropsF, S]), +requeue(SeqIds, PropsF, S) -> + rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), {_, S1} = internal_ack( fun (#m { msg = Msg, props = Props }, Si) -> publish_state(Msg, PropsF(Props), true, Si) end, - AckTags, + SeqIds, S), Result = S1, rabbit_log:info(" -> ~p", [Result]), @@ -552,7 +559,7 @@ ram_duration(S) -> %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). needs_idle_timeout(#s { on_sync = - #sync { acks = [], pubs = [], funs = [] } }) -> + #sync { acks = [], pubs = [], funs = [] } }) -> rabbit_log:info("needs_idle_timeout(_) ->"), Result = false, rabbit_log:info(" -> ~p", [Result]), @@ -644,31 +651,30 @@ erase_tx(Txn) -> erase({txn, Txn}), ok. %% Internal major helpers for Public API %%---------------------------------------------------------------------------- --spec internal_tx_commit_store_state([rabbit_types:basic_message()], - [seq_id()], - fun (() -> any()), - message_properties_transformer(), - s()) -> - s(). - -internal_tx_commit_store_state(Pubs, - AckTags, - F, - PropsF, - S = #s { on_sync = OnSync }) -> - (tx_commit_state( - S #s { on_sync = #sync { acks = AckTags, - pubs = [{PropsF, Pubs}], - funs = [F] }})) +-spec internal_tx_commit_state([rabbit_types:basic_message()], + [seq_id()], + fun (() -> any()), + message_properties_transformer(), + s()) -> + s(). + +internal_tx_commit_state(Pubs, + SeqIds, + F, + PropsF, + S = #s { on_sync = OnSync }) -> + (tx_commit_state(S #s { on_sync = #sync { acks = SeqIds, + pubs = [{PropsF, Pubs}], + funs = [F] }})) #s { on_sync = OnSync }. -spec tx_commit_state(s()) -> s(). tx_commit_state(S = #s { on_sync = #sync { acks = [], pubs = [], funs = [] } }) -> S; tx_commit_state(S = #s { - on_sync = #sync { acks = SAcks, - pubs = SPubs, - funs = SFs }}) -> + on_sync = #sync { acks = SAcks, + pubs = SPubs, + funs = SFs }}) -> {_, S1} = internal_ack(SAcks, S), {_, S2} = lists:foldl( @@ -723,7 +729,7 @@ remove_pending_acks_state(S = #s { pending_ack_dict = PAD }) -> {[rabbit_guid:guid()], s()}. internal_ack(_, [], S) -> {[], S}; -internal_ack(F, AckTags, S) -> +internal_ack(F, SeqIds, S) -> {AllGuids, S1} = lists:foldl( fun (SeqId, {Acc, Si = #s { pending_ack_dict = PAD }}) -> @@ -732,10 +738,9 @@ internal_ack(F, AckTags, S) -> F(M, Si #s { pending_ack_dict = dict:erase(SeqId, PAD)})} end, {[], S}, - AckTags), + SeqIds), {lists:reverse(AllGuids), S1}. -spec m_guid(m()) -> rabbit_guid:guid(). m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. - -- cgit v1.2.1 From c58aa1caa7e3deca364cf611dfa31e557413ae84 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 19 Jan 2011 10:08:37 -0800 Subject: Code is now pure. --- src/rabbit_mnesia_queue.erl | 85 +++++++++++++++++++++++++-------------------- 1 file changed, 48 insertions(+), 37 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 69d9fbf0..570b2e11 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -61,6 +61,10 @@ %% transient (non-persistent). (This breaks some Java tests for %% durable queues.) %% +%% I believe that only one AMQP transaction can be in progress at +%% once, although parts of this code (as in rabbit_variable_queue) are +%% written assuming more. +%% %%---------------------------------------------------------------------------- -behaviour(rabbit_backing_queue). @@ -69,6 +73,7 @@ { q, % A temporary in-RAM queue of Ms next_seq_id, % The next seq_id to use to build an M pending_ack_dict, % Map from seq_id to M, pending ack + txn_dict, % Map from txn to tx, in progress on_sync }). @@ -80,8 +85,8 @@ }). -record(tx, - { pending_messages, - pending_acks }). + { to_pub, + to_ack }). -record(sync, { acks, @@ -102,6 +107,7 @@ -type(s() :: #s { q :: queue(), next_seq_id :: seq_id(), pending_ack_dict :: dict(), + txn_dict :: dict(), on_sync :: sync() }). -type(state() :: s()). @@ -110,9 +116,9 @@ props :: rabbit_types:message_properties(), is_delivered :: boolean() }). --type(tx() :: #tx { pending_messages :: [{rabbit_types:basic_message(), - rabbit_types:message_properties()}], - pending_acks :: [seq_id()] }). +-type(tx() :: #tx { to_pub :: [{rabbit_types:basic_message(), + rabbit_types:message_properties()}], + to_ack :: [seq_id()] }). -type(sync() :: #sync { acks :: [seq_id()], pubs :: [{message_properties_transformer(), @@ -177,6 +183,7 @@ init(QueueName, _IsDurable, _Recover) -> Result = #s { q = queue:new(), next_seq_id = 0, pending_ack_dict = dict:new(), + txn_dict = dict:new(), on_sync = #sync { acks = [], pubs = [], funs = [] } }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -190,7 +197,7 @@ init(QueueName, _IsDurable, _Recover) -> %% -spec(terminate/1 :: (state()) -> state()). terminate(S) -> - Result = remove_pending_acks_state(tx_commit_state(S)), + Result = remove_acks_state(tx_commit_state(S)), rabbit_log:info("terminate(~p) ->", [S]), rabbit_log:info(" -> ~p", [Result]), Result. @@ -211,7 +218,7 @@ terminate(S) -> delete_and_terminate(S) -> rabbit_log:info("delete_and_terminate(~p) ->", [S]), {_, S1} = purge(S), - Result = remove_pending_acks_state(S1), + Result = remove_acks_state(S1), rabbit_log:info(" -> ~p", [Result]), Result. @@ -383,7 +390,9 @@ internal_ack(SeqIds, S) -> internal_ack(fun (_, Si) -> Si end, SeqIds, S). %%---------------------------------------------------------------------------- -%% tx_publish/4 is a publish, but in the context of a transaction. +%% tx_publish/4 is a publish, but in the context of a transaction. It +%% stores the message and its properties in the to_pub field of the txn, +%% waiting to be committed. %% %% This function should be called only from outside this module. %% @@ -396,14 +405,14 @@ internal_ack(SeqIds, S) -> tx_publish(Txn, Msg, Props, S) -> rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), - Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_messages = [{Msg, Props} | Pubs] }), - Result = S, + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), + Result = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% tx_ack/3 acks, but in the context of a transaction. +%% tx_ack/3 acks, but in the context of a transaction. It stores the +%% seq_id in the acks field of the txn, waiting to be committed. %% %% This function should be called only from outside this module. %% @@ -413,15 +422,15 @@ tx_publish(Txn, Msg, Props, S) -> tx_ack(Txn, SeqIds, S) -> rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), - Tx = #tx { pending_acks = SeqIds0 } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_acks = lists:append(SeqIds, SeqIds0) }), - Result = S, + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), + Result = + store_tx(Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% tx_rollback/2 undoes anything which has been done in the context of -%% the specified transaction. +%% the specified transaction. It returns the %% %% This function should be called only from outside this module. %% @@ -431,9 +440,8 @@ tx_ack(Txn, SeqIds, S) -> tx_rollback(Txn, S) -> rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), - #tx { pending_acks = SeqIds } = lookup_tx(Txn), - erase_tx(Txn), - Result = {SeqIds, S}, + #tx { to_ack = SeqIds } = lookup_tx(Txn, S), + Result = {SeqIds, erase_tx(Txn, S)}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -456,9 +464,10 @@ tx_rollback(Txn, S) -> tx_commit(Txn, F, PropsF, S) -> rabbit_log:info( "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), - #tx { pending_acks = SeqIds, pending_messages = Pubs } = lookup_tx(Txn), - erase_tx(Txn), - Result = {SeqIds, internal_tx_commit_state(Pubs, SeqIds, F, PropsF, S)}, + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), + Result = + {SeqIds, + internal_tx_commit_state(Pubs, SeqIds, F, PropsF, erase_tx(Txn, S))}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -608,13 +617,13 @@ handle_pre_hibernate(S) -> %% -spec(status/1 :: (state()) -> [{atom(), any()}]). status(#s { q = Q, - next_seq_id = NextSeqId, - pending_ack_dict = PAD, - on_sync = #sync { funs = Fs }}) -> + next_seq_id = NextSeqId, + pending_ack_dict = PAD, + on_sync = #sync { funs = Fs }}) -> rabbit_log:info("status(_) ->"), Result = [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, - {pending_acks, dict:size(PAD)}, + {acks, dict:size(PAD)}, {outstanding_txns, length(Fs)}], rabbit_log:info(" ~p", [Result]), Result. @@ -631,21 +640,23 @@ status(#s { q = Q, m(Msg, SeqId, Props) -> #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. --spec lookup_tx(rabbit_types:txn()) -> tx(). +-spec lookup_tx(rabbit_types:txn(), state()) -> tx(). -lookup_tx(Txn) -> - case get({txn, Txn}) of - undefined -> #tx { pending_messages = [], pending_acks = [] }; - V -> V +lookup_tx(Txn, #s { txn_dict = TxnDict }) -> + case dict:find(Txn, TxnDict) of + error -> #tx { to_pub = [], to_ack = [] }; + {ok, Tx} -> Tx end. --spec store_tx(rabbit_types:txn(), tx()) -> ok. +-spec store_tx(rabbit_types:txn(), tx(), state()) -> state(). -store_tx(Txn, Tx) -> put({txn, Txn}, Tx), ok. +store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. --spec erase_tx(rabbit_types:txn()) -> ok. +-spec erase_tx(rabbit_types:txn(), state()) -> state(). -erase_tx(Txn) -> erase({txn, Txn}), ok. +erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:erase(Txn, TxnDict) }. %%---------------------------------------------------------------------------- %% Internal major helpers for Public API @@ -717,9 +728,9 @@ record_pending_ack_state(M = #m { seq_id = SeqId }, S = #s { pending_ack_dict = PAD }) -> S #s { pending_ack_dict = dict:store(SeqId, M, PAD) }. -% -spec remove_pending_acks_state(s()) -> s(). +% -spec remove_acks_state(s()) -> s(). -remove_pending_acks_state(S = #s { pending_ack_dict = PAD }) -> +remove_acks_state(S = #s { pending_ack_dict = PAD }) -> _ = dict:fold(fun (_, M, Acc) -> [m_guid(M) | Acc] end, [], PAD), S #s { pending_ack_dict = dict:new() }. -- cgit v1.2.1 From 0e11a40f2564bfbf9cd1d6d0e653cebba01d344b Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 19 Jan 2011 11:04:29 -0800 Subject: Code is now pure. --- src/rabbit_mnesia_queue.erl | 123 ++++++++++++-------------------------------- 1 file changed, 32 insertions(+), 91 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 570b2e11..ef77b04d 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -73,8 +73,7 @@ { q, % A temporary in-RAM queue of Ms next_seq_id, % The next seq_id to use to build an M pending_ack_dict, % Map from seq_id to M, pending ack - txn_dict, % Map from txn to tx, in progress - on_sync + txn_dict % Map from txn to tx, in progress }). -record(m, % A wrapper aroung a msg @@ -88,11 +87,6 @@ { to_pub, to_ack }). --record(sync, - { acks, - pubs, - funs }). - -include("rabbit.hrl"). %%---------------------------------------------------------------------------- @@ -106,9 +100,7 @@ -type(s() :: #s { q :: queue(), next_seq_id :: seq_id(), - pending_ack_dict :: dict(), - txn_dict :: dict(), - on_sync :: sync() }). + pending_ack_dict :: dict() }). -type(state() :: s()). -type(m() :: #m { msg :: rabbit_types:basic_message(), @@ -120,11 +112,6 @@ rabbit_types:message_properties()}], to_ack :: [seq_id()] }). --type(sync() :: #sync { acks :: [seq_id()], - pubs :: [{message_properties_transformer(), - [rabbit_types:basic_message()]}], - funs :: [fun (() -> any())] }). - -include("rabbit_backing_queue_spec.hrl"). %% -endif. @@ -183,8 +170,7 @@ init(QueueName, _IsDurable, _Recover) -> Result = #s { q = queue:new(), next_seq_id = 0, pending_ack_dict = dict:new(), - txn_dict = dict:new(), - on_sync = #sync { acks = [], pubs = [], funs = [] } }, + txn_dict = dict:new() }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -197,7 +183,7 @@ init(QueueName, _IsDurable, _Recover) -> %% -spec(terminate/1 :: (state()) -> state()). terminate(S) -> - Result = remove_acks_state(tx_commit_state(S)), + Result = remove_acks_state(S), rabbit_log:info("terminate(~p) ->", [S]), rabbit_log:info(" -> ~p", [Result]), Result. @@ -387,7 +373,7 @@ ack(SeqIds, S) -> -spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). internal_ack(SeqIds, S) -> - internal_ack(fun (_, Si) -> Si end, SeqIds, S). + internal_ack3(fun (_, Si) -> Si end, SeqIds, S). %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. It @@ -465,12 +451,24 @@ tx_commit(Txn, F, PropsF, S) -> rabbit_log:info( "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), - Result = - {SeqIds, - internal_tx_commit_state(Pubs, SeqIds, F, PropsF, erase_tx(Txn, S))}, + Result = {SeqIds, tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S))}, + F(), rabbit_log:info(" -> ~p", [Result]), Result. +-spec tx_commit_state([rabbit_types:basic_message()], + [seq_id()], + message_properties_transformer(), + s()) -> + s(). + +tx_commit_state(Pubs, SeqIds, PropsF, S) -> + {_, S1} = internal_ack(SeqIds, S), + lists:foldl( + fun ({Msg, Props}, Si) -> publish_state(Msg, Props, false, Si) end, + S1, + [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). + %%---------------------------------------------------------------------------- %% requeue/3 reinserts messages into the queue which have already been %% delivered and were pending acknowledgement. @@ -485,7 +483,7 @@ tx_commit(Txn, F, PropsF, S) -> requeue(SeqIds, PropsF, S) -> rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), {_, S1} = - internal_ack( + internal_ack3( fun (#m { msg = Msg, props = Props }, Si) -> publish_state(Msg, PropsF(Props), true, Si) end, @@ -567,15 +565,9 @@ ram_duration(S) -> %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -needs_idle_timeout(#s { on_sync = - #sync { acks = [], pubs = [], funs = [] } }) -> - rabbit_log:info("needs_idle_timeout(_) ->"), - Result = false, - rabbit_log:info(" -> ~p", [Result]), - Result; needs_idle_timeout(_) -> rabbit_log:info("needs_idle_timeout(_) ->"), - Result = true, + Result = false, rabbit_log:info(" -> ~p", [Result]), Result. @@ -590,7 +582,7 @@ needs_idle_timeout(_) -> idle_timeout(S) -> rabbit_log:info("idle_timeout(~p) ->", [S]), - Result = tx_commit_state(S), + Result = S, rabbit_log:info(" -> ~p", [Result]), Result. @@ -618,18 +610,16 @@ handle_pre_hibernate(S) -> status(#s { q = Q, next_seq_id = NextSeqId, - pending_ack_dict = PAD, - on_sync = #sync { funs = Fs }}) -> + pending_ack_dict = PAD }) -> rabbit_log:info("status(_) ->"), Result = [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, - {acks, dict:size(PAD)}, - {outstanding_txns, length(Fs)}], + {acks, dict:size(PAD)}], rabbit_log:info(" ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% Minor helpers +%% Various helpers %%---------------------------------------------------------------------------- -spec m(rabbit_types:basic_message(), @@ -658,51 +648,6 @@ store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> S #s { txn_dict = dict:erase(Txn, TxnDict) }. -%%---------------------------------------------------------------------------- -%% Internal major helpers for Public API -%%---------------------------------------------------------------------------- - --spec internal_tx_commit_state([rabbit_types:basic_message()], - [seq_id()], - fun (() -> any()), - message_properties_transformer(), - s()) -> - s(). - -internal_tx_commit_state(Pubs, - SeqIds, - F, - PropsF, - S = #s { on_sync = OnSync }) -> - (tx_commit_state(S #s { on_sync = #sync { acks = SeqIds, - pubs = [{PropsF, Pubs}], - funs = [F] }})) - #s { on_sync = OnSync }. - --spec tx_commit_state(s()) -> s(). - -tx_commit_state(S = #s { on_sync = #sync { acks = [], pubs = [], funs = [] } }) -> S; -tx_commit_state(S = #s { - on_sync = #sync { acks = SAcks, - pubs = SPubs, - funs = SFs }}) -> - {_, S1} = internal_ack(SAcks, S), - {_, S2} = - lists:foldl( - fun ({Msg, Props}, {SeqIds, Si}) -> - {SeqIds, publish_state(Msg, Props, false, Si)} - end, - {[], S1}, - [{Msg, F(Props)} || - {F, PubsN} <- lists:reverse(SPubs), - {Msg, Props} <- lists:reverse(PubsN)]), - _ = [ F() || F <- lists:reverse(SFs) ], - S2 #s { on_sync = #sync { acks = [], pubs = [], funs = [] } }. - -%%---------------------------------------------------------------------------- -%% Internal gubbins for publishing -%%---------------------------------------------------------------------------- - -spec publish_state(rabbit_types:basic_message(), rabbit_types:message_properties(), boolean(), @@ -718,10 +663,6 @@ publish_state(Msg, (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), next_seq_id = SeqId + 1 }. -%%---------------------------------------------------------------------------- -%% Internal gubbins for acks -%%---------------------------------------------------------------------------- - -spec record_pending_ack_state(m(), s()) -> s(). record_pending_ack_state(M = #m { seq_id = SeqId }, @@ -734,13 +675,13 @@ remove_acks_state(S = #s { pending_ack_dict = PAD }) -> _ = dict:fold(fun (_, M, Acc) -> [m_guid(M) | Acc] end, [], PAD), S #s { pending_ack_dict = dict:new() }. --spec internal_ack(fun (([rabbit_guid:guid()], s()) -> s()), - [rabbit_guid:guid()], - s()) -> - {[rabbit_guid:guid()], s()}. +-spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), + [rabbit_guid:guid()], + s()) -> + {[rabbit_guid:guid()], s()}. -internal_ack(_, [], S) -> {[], S}; -internal_ack(F, SeqIds, S) -> +internal_ack3(_, [], S) -> {[], S}; +internal_ack3(F, SeqIds, S) -> {AllGuids, S1} = lists:foldl( fun (SeqId, {Acc, Si = #s { pending_ack_dict = PAD }}) -> -- cgit v1.2.1 From 437d610537ce66cd7dbf84dd1ea3994a3a6fb6b3 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 19 Jan 2011 13:41:38 -0800 Subject: Saving purely functional rabbit_ram_store --- src/rabbit_mnesia_queue.erl | 103 +++---- src/rabbit_ram_queue.erl | 689 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 736 insertions(+), 56 deletions(-) create mode 100644 src/rabbit_ram_queue.erl diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index ef77b04d..8658bf40 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -40,31 +40,20 @@ %%---------------------------------------------------------------------------- %% This is a simple implementation of the rabbit_backing_queue -%% behavior, completely in RAM. +%% behavior, with all msgs in RAM. %% %% This will eventually be structured as a plug-in instead of an extra %% module in the middle of the server tree.... %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- -%% We separate messages pending delivery from messages pending -%% acks. This ensures that purging (deleting the former) and deletion -%% (deleting both) are both cheap and do not require scanning through -%% lists of messages. -%% %% This module wraps messages into M records for internal use, -%% containing the messages themselves and additional information. -%% -%% Pending acks are also recorded in memory as M records. +%% containing the messages themselves and additional +%% information. Pending acks are also recorded in memory as M records. %% %% All queues are non-durable in this version, and all messages are %% transient (non-persistent). (This breaks some Java tests for %% durable queues.) -%% -%% I believe that only one AMQP transaction can be in progress at -%% once, although parts of this code (as in rabbit_variable_queue) are -%% written assuming more. -%% %%---------------------------------------------------------------------------- -behaviour(rabbit_backing_queue). @@ -155,7 +144,7 @@ stop() -> %%---------------------------------------------------------------------------- %% init/3 creates one backing queue, returning its state. Names are -%% local to the vhost, and must be unique. +%% local to the vhost, and need not be unique. %% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) @@ -163,7 +152,7 @@ stop() -> %% %% This function should be called only from outside this module. -%% BUG: Need to provide back-pressure when queue is filling up. +%% BUG: Need to provide better back-pressure when queue is filling up. init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~p, _, _) ->", [QueueName]), @@ -203,8 +192,7 @@ terminate(S) -> delete_and_terminate(S) -> rabbit_log:info("delete_and_terminate(~p) ->", [S]), - {_, S1} = purge(S), - Result = remove_acks_state(S1), + Result = remove_acks_state(S #s { q = queue:new() }), rabbit_log:info(" -> ~p", [Result]), Result. @@ -225,7 +213,8 @@ purge(S = #s { q = Q }) -> %%---------------------------------------------------------------------------- %% publish/3 publishes a message. %% -%% This function should be called only from outside this module. +%% This function should be called only from outside this module. All +%% msgs are silently reated as non-persistent. %% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), @@ -245,7 +234,8 @@ publish(Msg, Props, S) -> %%---------------------------------------------------------------------------- %% publish_delivered/4 is called for messages which have already been %% passed straight out to a client. The queue will be empty for these -%% calls (i.e. saves the round trip through the backing queue). +%% calls (i.e. saves the round trip through the backing queue). All +%% msgs are silently treated as non-persistent. %% %% This function should be called only from outside this module. %% @@ -287,27 +277,11 @@ publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> dropwhile(Pred, S) -> rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), - {ok, S1} = dropwhile_state(Pred, S), + {_, S1} = dropwhile_state(Pred, S), Result = S1, rabbit_log:info(" -> ~p", [Result]), Result. --spec(dropwhile_state/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), s()) - -> {ok, s()}). - -dropwhile_state(Pred, S) -> - internal_queue_out( - fun (M = #m { props = Props }, Si = #s { q = Q }) -> - case Pred(Props) of - true -> - {_, Si1} = internal_fetch(false, M, Si), - dropwhile_state(Pred, Si1); - false -> {ok, Si #s {q = queue:in_r(M, Q) }} - end - end, - S). - %%---------------------------------------------------------------------------- %% fetch/2 produces the next message. %% @@ -370,11 +344,6 @@ ack(SeqIds, S) -> rabbit_log:info(" -> ~p", [Result]), Result. --spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). - -internal_ack(SeqIds, S) -> - internal_ack3(fun (_, Si) -> Si end, SeqIds, S). - %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. It %% stores the message and its properties in the to_pub field of the txn, @@ -416,7 +385,8 @@ tx_ack(Txn, SeqIds, S) -> %%---------------------------------------------------------------------------- %% tx_rollback/2 undoes anything which has been done in the context of -%% the specified transaction. It returns the +%% the specified transaction. It returns the state with to_pub and +%% to_ack erased. %% %% This function should be called only from outside this module. %% @@ -456,19 +426,6 @@ tx_commit(Txn, F, PropsF, S) -> rabbit_log:info(" -> ~p", [Result]), Result. --spec tx_commit_state([rabbit_types:basic_message()], - [seq_id()], - message_properties_transformer(), - s()) -> - s(). - -tx_commit_state(Pubs, SeqIds, PropsF, S) -> - {_, S1} = internal_ack(SeqIds, S), - lists:foldl( - fun ({Msg, Props}, Si) -> publish_state(Msg, Props, false, Si) end, - S1, - [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). - %%---------------------------------------------------------------------------- %% requeue/3 reinserts messages into the queue which have already been %% delivered and were pending acknowledgement. @@ -622,6 +579,40 @@ status(#s { q = Q, %% Various helpers %%---------------------------------------------------------------------------- +-spec(dropwhile_state/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), s()) + -> {empty | ok, s()}). + +dropwhile_state(Pred, S) -> + internal_queue_out( + fun (M = #m { props = Props }, Si = #s { q = Q }) -> + case Pred(Props) of + true -> + {_, Si1} = internal_fetch(false, M, Si), + dropwhile_state(Pred, Si1); + false -> {ok, Si #s {q = queue:in_r(M, Q) }} + end + end, + S). + +-spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). + +internal_ack(SeqIds, S) -> + internal_ack3(fun (_, Si) -> Si end, SeqIds, S). + +-spec tx_commit_state([rabbit_types:basic_message()], + [seq_id()], + message_properties_transformer(), + s()) -> + s(). + +tx_commit_state(Pubs, SeqIds, PropsF, S) -> + {_, S1} = internal_ack(SeqIds, S), + lists:foldl( + fun ({Msg, Props}, Si) -> publish_state(Msg, Props, false, Si) end, + S1, + [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). + -spec m(rabbit_types:basic_message(), seq_id(), rabbit_types:message_properties()) -> diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl new file mode 100644 index 00000000..e75fc6e9 --- /dev/null +++ b/src/rabbit_ram_queue.erl @@ -0,0 +1,689 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developers of the Original Code are LShift Ltd, +%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, +%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd +%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial +%% Technologies LLC, and Rabbit Technologies Ltd. +%% +%% Portions created by LShift Ltd are Copyright (C) 2007-2011 LShift +%% Ltd. Portions created by Cohesive Financial Technologies LLC are +%% Copyright (C) 2007-2011 Cohesive Financial Technologies +%% LLC. Portions created by Rabbit Technologies Ltd are Copyright +%% (C) 2007-2011 Rabbit Technologies Ltd. +%% +%% All Rights Reserved. +%% +%% Contributor(s): ______________________________________. +%% + +-module(rabbit_ram_queue). + +-export( + [start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, + tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, + idle_timeout/1, handle_pre_hibernate/1, status/1]). + +%%---------------------------------------------------------------------------- +%% This is a simple implementation of the rabbit_backing_queue +%% behavior, with all msgs in RAM. +%% +%% This will eventually be structured as a plug-in instead of an extra +%% module in the middle of the server tree.... +%% ---------------------------------------------------------------------------- + +%%---------------------------------------------------------------------------- +%% This module wraps messages into M records for internal use, +%% containing the messages themselves and additional +%% information. Pending acks are also recorded in memory as M records. +%% +%% All queues are non-durable in this version, and all messages are +%% transient (non-persistent). (This breaks some Java tests for +%% durable queues.) +%%---------------------------------------------------------------------------- + +-behaviour(rabbit_backing_queue). + +-record(s, % The in-RAM queue state + { q, % A temporary in-RAM queue of Ms + next_seq_id, % The next seq_id to use to build an M + pending_ack_dict, % Map from seq_id to M, pending ack + txn_dict % Map from txn to tx, in progress + }). + +-record(m, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg + msg, % The msg itself + props, % The message properties + is_delivered % Has the msg been delivered? (for reporting) + }). + +-record(tx, + { to_pub, + to_ack }). + +-include("rabbit.hrl"). + +%%---------------------------------------------------------------------------- + +%% BUG: Restore -ifdef, -endif. + +%% -ifdef(use_specs). + +-type(seq_id() :: non_neg_integer()). +-type(ack() :: seq_id() | 'blank_ack'). + +-type(s() :: #s { q :: queue(), + next_seq_id :: seq_id(), + pending_ack_dict :: dict() }). +-type(state() :: s()). + +-type(m() :: #m { msg :: rabbit_types:basic_message(), + seq_id :: seq_id(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). + +-type(tx() :: #tx { to_pub :: [{rabbit_types:basic_message(), + rabbit_types:message_properties()}], + to_ack :: [seq_id()] }). + +-include("rabbit_backing_queue_spec.hrl"). + +%% -endif. + +%%---------------------------------------------------------------------------- +%% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. + +%%---------------------------------------------------------------------------- +%% start/1 promises that a list of (durable) queue names will be +%% started in the near future. This lets us perform early checking +%% necessary for the consistency of those queues or initialise other +%% shared resources. +%% +%% This function should be called only from outside this module. +%% +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). + +%%---------------------------------------------------------------------------- +%% Public API +%%---------------------------------------------------------------------------- + +start(_DurableQueues) -> + rabbit_log:info("start(_) ->"), + rabbit_log:info(" -> ok"), + ok. + +%%---------------------------------------------------------------------------- +%% stop/0 tears down all state/resources upon shutdown. It might not +%% be called. +%% +%% This function should be called only from outside this module. +%% +%% -spec(stop/0 :: () -> 'ok'). + +stop() -> + rabbit_log:info("stop(_) ->"), + rabbit_log:info(" -> ok"), + ok. + +%%---------------------------------------------------------------------------- +%% init/3 creates one backing queue, returning its state. Names are +%% local to the vhost, and need not be unique. +%% +%% -spec(init/3 :: +%% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) +%% -> state()). +%% +%% This function should be called only from outside this module. + +%% BUG: Need to provide better back-pressure when queue is filling up. + +init(QueueName, _IsDurable, _Recover) -> + rabbit_log:info("init(~p, _, _) ->", [QueueName]), + Result = #s { q = queue:new(), + next_seq_id = 0, + pending_ack_dict = dict:new(), + txn_dict = dict:new() }, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% terminate/1 is called on queue shutdown when the queue isn't being +%% deleted. +%% +%% This function should be called only from outside this module. +%% +%% -spec(terminate/1 :: (state()) -> state()). + +terminate(S) -> + Result = remove_acks_state(S), + rabbit_log:info("terminate(~p) ->", [S]), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% delete_and_terminate/1 is called when the queue is terminating and +%% needs to delete all its content. The only difference between purge +%% and delete is that delete also needs to delete everything that's +%% been delivered and not ack'd. +%% +%% This function should be called only from outside this module. +%% +%% -spec(delete_and_terminate/1 :: (state()) -> state()). + +%% the only difference between purge and delete is that delete also +%% needs to delete everything that's been delivered and not ack'd. + +delete_and_terminate(S) -> + rabbit_log:info("delete_and_terminate(~p) ->", [S]), + Result = remove_acks_state(S #s { q = queue:new() }), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% purge/1 removes all messages in the queue, but not messages which +%% have been fetched and are pending acks. +%% +%% This function should be called only from outside this module. +%% +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(S = #s { q = Q }) -> + rabbit_log:info("purge(~p) ->", [S]), + Result = {queue:len(Q), S #s { q = queue:new() }}, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish/3 publishes a message. +%% +%% This function should be called only from outside this module. All +%% msgs are silently reated as non-persistent. +%% +%% -spec(publish/3 :: +%% (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +publish(Msg, Props, S) -> + rabbit_log:info("publish("), + rabbit_log:info(" ~p,", [Msg]), + rabbit_log:info(" ~p,", [Props]), + rabbit_log:info(" ~p) ->", [S]), + Result = publish_state(Msg, Props, false, S), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish_delivered/4 is called for messages which have already been +%% passed straight out to a client. The queue will be empty for these +%% calls (i.e. saves the round trip through the backing queue). All +%% msgs are silently treated as non-persistent. +%% +%% This function should be called only from outside this module. +%% +%% -spec(publish_delivered/4 :: +%% (ack_required(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> {ack(), state()}). + +publish_delivered(false, _, _, S) -> + rabbit_log:info("publish_delivered(false, _, _,"), + rabbit_log:info(" ~p) ->", [S]), + Result = {blank_ack, S}, + rabbit_log:info(" -> ~p", [Result]), + Result; +publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> + rabbit_log:info("publish_delivered(true, "), + rabbit_log:info(" ~p,", [Msg]), + rabbit_log:info(" ~p,", [Props]), + rabbit_log:info(" ~p) ->", [S]), + Result = + {SeqId, + (record_pending_ack_state( + ((m(Msg, SeqId, Props)) #m { is_delivered = true }), S)) + #s { next_seq_id = SeqId + 1 }}, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% dropwhile/2 drops messages from the head of the queue while the +%% supplied predicate returns true. +%% +%% This function should be called only from outside this module. +%% +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). + +dropwhile(Pred, S) -> + rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), + {_, S1} = dropwhile_state(Pred, S), + Result = S1, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% fetch/2 produces the next message. +%% +%% This function should be called only from outside this module. +%% +%% -spec(fetch/2 :: (ack_required(), state()) -> +%% {ok | fetch_result(), state()}). + +fetch(AckRequired, S) -> + rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), + Result = + internal_queue_out( + fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, S), + rabbit_log:info(" -> ~p", [Result]), + Result. + +-spec internal_queue_out(fun ((m(), state()) -> T), state()) -> + {empty, state()} | T. + +internal_queue_out(F, S = #s { q = Q }) -> + case queue:out(Q) of + {empty, _} -> {empty, S}; + {{value, M}, Qa} -> F(M, S #s { q = Qa }) + end. + +-spec internal_fetch/3 :: (ack_required(), m(), s()) -> {fetch_result(), s()}. + +internal_fetch(AckRequired, + M = #m { + seq_id = SeqId, + msg = Msg, + is_delivered = IsDelivered }, + S = #s { q = Q }) -> + {Ack, S1} = + case AckRequired of + true -> + {SeqId, + record_pending_ack_state( + M #m { is_delivered = true }, S)}; + false -> {blank_ack, S} + end, + {{Msg, IsDelivered, Ack, queue:len(Q)}, S1}. + +%%---------------------------------------------------------------------------- +%% ack/2 acknowledges messages names by SeqIds. Maps SeqIds to guids +%% upon return. +%% +%% This function should be called only from outside this module. +%% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% +%% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). + +ack(SeqIds, S) -> + rabbit_log:info("ack("), + rabbit_log:info("~p,", [SeqIds]), + rabbit_log:info(" ~p) ->", [S]), + {Guids, S1} = internal_ack(SeqIds, S), + Result = {Guids, S1}, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_publish/4 is a publish, but in the context of a transaction. It +%% stores the message and its properties in the to_pub field of the txn, +%% waiting to be committed. +%% +%% This function should be called only from outside this module. +%% +%% -spec(tx_publish/4 :: +%% (rabbit_types:txn(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +tx_publish(Txn, Msg, Props, S) -> + rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), + Result = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_ack/3 acks, but in the context of a transaction. It stores the +%% seq_id in the acks field of the txn, waiting to be committed. +%% +%% This function should be called only from outside this module. +%% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). + +tx_ack(Txn, SeqIds, S) -> + rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), + Result = + store_tx(Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_rollback/2 undoes anything which has been done in the context of +%% the specified transaction. It returns the state with to_pub and +%% to_ack erased. +%% +%% This function should be called only from outside this module. +%% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + +tx_rollback(Txn, S) -> + rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), + #tx { to_ack = SeqIds } = lookup_tx(Txn, S), + Result = {SeqIds, erase_tx(Txn, S)}, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_commit/4 commits a transaction. The F passed in must be called +%% once the messages have really been commited. This CPS permits the +%% possibility of commit coalescing. +%% +%% This function should be called only from outside this module. +%% +%% The following spec is wrong, blank_acks cannot be returned. +%% +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), +%% fun (() -> any()), +%% message_properties_transformer(), +%% state()) +%% -> {[ack()], state()}). + +tx_commit(Txn, F, PropsF, S) -> + rabbit_log:info( + "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), + Result = {SeqIds, tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S))}, + F(), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% requeue/3 reinserts messages into the queue which have already been +%% delivered and were pending acknowledgement. +%% +%% This function should be called only from outside this module. +%% +%% The following spec is wrong, as blank_acks cannot be passed back in. +%% +%% -spec(requeue/3 :: +%% ([ack()], message_properties_transformer(), state()) -> state()). + +requeue(SeqIds, PropsF, S) -> + rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), + {_, S1} = + internal_ack3( + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) + end, + SeqIds, + S), + Result = S1, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% len/1 returns the queue length. +%% +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(#s { q = Q }) -> +% rabbit_log:info("len(~p) ->", [Q]), + Result = queue:len(Q), +% rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% is_empty/1 returns 'true' if the queue is empty, and 'false' +%% otherwise. +%% +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(#s { q = Q }) -> +% rabbit_log:info("is_empty(~p)", [Q]), + Result = queue:is_empty(Q), +% rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% For the next two functions, the assumption is that you're +%% monitoring something like the ingress and egress rates of the +%% queue. The RAM duration is thus the length of time represented by +%% the messages held in RAM given the current rates. If you want to +%% ignore all of this stuff, then do so, and return 0 in +%% ram_duration/1. + +%% set_ram_duration_target states that the target is to have no more +%% messages in RAM than indicated by the duration and the current +%% queue rates. +%% +%% This function should be called only from outside this module. +%% +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) +%% -> state()). + +set_ram_duration_target(_, S) -> + rabbit_log:info("set_ram_duration_target(_~p) ->", [S]), + Result = S, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the messages in RAM represent given the current rates of +%% the queue. +%% +%% This function should be called only from outside this module. +%% +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). + +ram_duration(S) -> + rabbit_log:info("ram_duration(~p) ->", [S]), + Result = {0, S}, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be +%% called as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires), and 'false' otherwise. +%% +%% This function should be called only from outside this module. +%% +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +needs_idle_timeout(_) -> + rabbit_log:info("needs_idle_timeout(_) ->"), + Result = false, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% idle_timeout/1 is called (eventually) after needs_idle_timeout returns +%% 'true'. Note this may be called more than once for each 'true' +%% returned from needs_idle_timeout. +%% +%% This function should be called only from outside this module. +%% +%% -spec(idle_timeout/1 :: (state()) -> state()). + +idle_timeout(S) -> + rabbit_log:info("idle_timeout(~p) ->", [S]), + Result = S, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. +%% +%% This function should be called only from outside this module. +%% +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). + +handle_pre_hibernate(S) -> + Result = S, + rabbit_log:info("handle_pre_hibernate(~p) ->", [S]), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% status/1 exists for debugging purposes, to be able to expose state +%% via rabbitmqctl list_queues backing_queue_status +%% +%% This function should be called only from outside this module. +%% +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(#s { q = Q, + next_seq_id = NextSeqId, + pending_ack_dict = PAD }) -> + rabbit_log:info("status(_) ->"), + Result = [{len, queue:len(Q)}, + {next_seq_id, NextSeqId}, + {acks, dict:size(PAD)}], + rabbit_log:info(" ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% Various helpers +%%---------------------------------------------------------------------------- + +-spec(dropwhile_state/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), s()) + -> {empty | ok, s()}). + +dropwhile_state(Pred, S) -> + internal_queue_out( + fun (M = #m { props = Props }, Si = #s { q = Q }) -> + case Pred(Props) of + true -> + {_, Si1} = internal_fetch(false, M, Si), + dropwhile_state(Pred, Si1); + false -> {ok, Si #s {q = queue:in_r(M, Q) }} + end + end, + S). + +-spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). + +internal_ack(SeqIds, S) -> + internal_ack3(fun (_, Si) -> Si end, SeqIds, S). + +-spec tx_commit_state([rabbit_types:basic_message()], + [seq_id()], + message_properties_transformer(), + s()) -> + s(). + +tx_commit_state(Pubs, SeqIds, PropsF, S) -> + {_, S1} = internal_ack(SeqIds, S), + lists:foldl( + fun ({Msg, Props}, Si) -> publish_state(Msg, Props, false, Si) end, + S1, + [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). + +-spec m(rabbit_types:basic_message(), + seq_id(), + rabbit_types:message_properties()) -> + m(). + +m(Msg, SeqId, Props) -> + #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. + +-spec lookup_tx(rabbit_types:txn(), state()) -> tx(). + +lookup_tx(Txn, #s { txn_dict = TxnDict }) -> + case dict:find(Txn, TxnDict) of + error -> #tx { to_pub = [], to_ack = [] }; + {ok, Tx} -> Tx + end. + +-spec store_tx(rabbit_types:txn(), tx(), state()) -> state(). + +store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. + +-spec erase_tx(rabbit_types:txn(), state()) -> state(). + +erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:erase(Txn, TxnDict) }. + +-spec publish_state(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + s()) -> + s(). + +publish_state(Msg, + Props, + IsDelivered, + S = #s { q = Q, next_seq_id = SeqId }) -> + S #s { + q = queue:in( + (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), + next_seq_id = SeqId + 1 }. + +-spec record_pending_ack_state(m(), s()) -> s(). + +record_pending_ack_state(M = #m { seq_id = SeqId }, + S = #s { pending_ack_dict = PAD }) -> + S #s { pending_ack_dict = dict:store(SeqId, M, PAD) }. + +% -spec remove_acks_state(s()) -> s(). + +remove_acks_state(S = #s { pending_ack_dict = PAD }) -> + _ = dict:fold(fun (_, M, Acc) -> [m_guid(M) | Acc] end, [], PAD), + S #s { pending_ack_dict = dict:new() }. + +-spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), + [rabbit_guid:guid()], + s()) -> + {[rabbit_guid:guid()], s()}. + +internal_ack3(_, [], S) -> {[], S}; +internal_ack3(F, SeqIds, S) -> + {AllGuids, S1} = + lists:foldl( + fun (SeqId, {Acc, Si = #s { pending_ack_dict = PAD }}) -> + M = dict:fetch(SeqId, PAD), + {[m_guid(M) | Acc], + F(M, Si #s { pending_ack_dict = dict:erase(SeqId, PAD)})} + end, + {[], S}, + SeqIds), + {lists:reverse(AllGuids), S1}. + +-spec m_guid(m()) -> rabbit_guid:guid(). + +m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. -- cgit v1.2.1 From 993bcfdd6e83301e082e242ddb548871f7541c61 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 19 Jan 2011 14:31:54 -0800 Subject: Initial scaffolding --- src/rabbit_mnesia_queue.erl | 198 +++++++++++++++++++++++++------------------- 1 file changed, 111 insertions(+), 87 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 8658bf40..550ca127 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -40,7 +40,8 @@ %%---------------------------------------------------------------------------- %% This is a simple implementation of the rabbit_backing_queue -%% behavior, with all msgs in RAM. +%% behavior, with all msgs in Mnesia. It uses the Mnesia interface as +%% it appears to be implemented, which is not how it is documented. %% %% This will eventually be structured as a plug-in instead of an extra %% module in the middle of the server tree.... @@ -51,18 +52,19 @@ %% containing the messages themselves and additional %% information. Pending acks are also recorded in memory as M records. %% -%% All queues are non-durable in this version, and all messages are -%% transient (non-persistent). (This breaks some Java tests for -%% durable queues.) -%%---------------------------------------------------------------------------- +%% All queues are durable in this version, and all messages are +%% treated as persistent. (This might break some tests for non-durable +%% queues.) +%% ---------------------------------------------------------------------------- -behaviour(rabbit_backing_queue). -record(s, % The in-RAM queue state - { q, % A temporary in-RAM queue of Ms + { q, % The in-Mnesia queue of Ms next_seq_id, % The next seq_id to use to build an M - pending_ack_dict, % Map from seq_id to M, pending ack - txn_dict % Map from txn to tx, in progress + pending_ack_dict, % The Mnesia seq_id->M map, pending ack + txn_dict, % Map from txn to tx, in progress + busy % Recursive calls not allowed }). -record(m, % A wrapper aroung a msg @@ -89,7 +91,9 @@ -type(s() :: #s { q :: queue(), next_seq_id :: seq_id(), - pending_ack_dict :: dict() }). + pending_ack_dict :: dict(), + txn_dict :: dict(), + busy :: boolean() }). -type(state() :: s()). -type(m() :: #m { msg :: rabbit_types:basic_message(), @@ -159,7 +163,8 @@ init(QueueName, _IsDurable, _Recover) -> Result = #s { q = queue:new(), next_seq_id = 0, pending_ack_dict = dict:new(), - txn_dict = dict:new() }, + txn_dict = dict:new(), + busy = false}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -171,8 +176,8 @@ init(QueueName, _IsDurable, _Recover) -> %% %% -spec(terminate/1 :: (state()) -> state()). -terminate(S) -> - Result = remove_acks_state(S), +terminate(S = #s { busy = false }) -> + Result = (remove_acks_state(S #s { busy = true })) #s { busy = false }, rabbit_log:info("terminate(~p) ->", [S]), rabbit_log:info(" -> ~p", [Result]), Result. @@ -192,7 +197,7 @@ terminate(S) -> delete_and_terminate(S) -> rabbit_log:info("delete_and_terminate(~p) ->", [S]), - Result = remove_acks_state(S #s { q = queue:new() }), + Result = (remove_acks_state(S #s { q = queue:new(), busy = true })) #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -204,9 +209,9 @@ delete_and_terminate(S) -> %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(S = #s { q = Q }) -> - rabbit_log:info("purge(~p) ->", [S]), - Result = {queue:len(Q), S #s { q = queue:new() }}, +purge(S = #s { q = Q, busy = false }) -> + rabbit_log:info("purge(~p) ->", [S #s { busy = true }]), + Result = {queue:len(Q), S #s { q = queue:new(), busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -222,12 +227,14 @@ purge(S = #s { q = Q }) -> %% state()) %% -> state()). -publish(Msg, Props, S) -> +publish(Msg, Props, S = #s { busy = false }) -> rabbit_log:info("publish("), rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), rabbit_log:info(" ~p) ->", [S]), - Result = publish_state(Msg, Props, false, S), + Result = + (publish_state(Msg, Props, false, S #s { busy = true })) + #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -246,13 +253,16 @@ publish(Msg, Props, S) -> %% state()) %% -> {ack(), state()}). -publish_delivered(false, _, _, S) -> +publish_delivered(false, _, _, S = #s { busy = false }) -> rabbit_log:info("publish_delivered(false, _, _,"), rabbit_log:info(" ~p) ->", [S]), Result = {blank_ack, S}, rabbit_log:info(" -> ~p", [Result]), Result; -publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> +publish_delivered(true, + Msg, + Props, + S = #s { next_seq_id = SeqId, busy = false }) -> rabbit_log:info("publish_delivered(true, "), rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), @@ -260,8 +270,9 @@ publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> Result = {SeqId, (record_pending_ack_state( - ((m(Msg, SeqId, Props)) #m { is_delivered = true }), S)) - #s { next_seq_id = SeqId + 1 }}, + (m(Msg, SeqId, Props)) #m { is_delivered = true }, + S #s { busy = true })) + #s { next_seq_id = SeqId + 1, busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -275,10 +286,10 @@ publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) %% -> state()). -dropwhile(Pred, S) -> +dropwhile(Pred, S = #s { busy = false }) -> rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), - {_, S1} = dropwhile_state(Pred, S), - Result = S1, + {_, S1} = dropwhile_state(Pred, S #s { busy = true }), + Result = S1 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -290,41 +301,16 @@ dropwhile(Pred, S) -> %% -spec(fetch/2 :: (ack_required(), state()) -> %% {ok | fetch_result(), state()}). -fetch(AckRequired, S) -> +fetch(AckRequired, S = #s { busy = false }) -> rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), - Result = + {R, S1} = internal_queue_out( - fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, S), + fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, + S #s { busy = true }), + Result = {R, S1 #s { busy = false } }, rabbit_log:info(" -> ~p", [Result]), Result. --spec internal_queue_out(fun ((m(), state()) -> T), state()) -> - {empty, state()} | T. - -internal_queue_out(F, S = #s { q = Q }) -> - case queue:out(Q) of - {empty, _} -> {empty, S}; - {{value, M}, Qa} -> F(M, S #s { q = Qa }) - end. - --spec internal_fetch/3 :: (ack_required(), m(), s()) -> {fetch_result(), s()}. - -internal_fetch(AckRequired, - M = #m { - seq_id = SeqId, - msg = Msg, - is_delivered = IsDelivered }, - S = #s { q = Q }) -> - {Ack, S1} = - case AckRequired of - true -> - {SeqId, - record_pending_ack_state( - M #m { is_delivered = true }, S)}; - false -> {blank_ack, S} - end, - {{Msg, IsDelivered, Ack, queue:len(Q)}, S1}. - %%---------------------------------------------------------------------------- %% ack/2 acknowledges messages names by SeqIds. Maps SeqIds to guids %% upon return. @@ -335,12 +321,12 @@ internal_fetch(AckRequired, %% %% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). -ack(SeqIds, S) -> +ack(SeqIds, S = #s { busy = false }) -> rabbit_log:info("ack("), rabbit_log:info("~p,", [SeqIds]), - rabbit_log:info(" ~p) ->", [S]), + rabbit_log:info(" ~p) ->", [S #s { busy = true }]), {Guids, S1} = internal_ack(SeqIds, S), - Result = {Guids, S1}, + Result = {Guids, S1 # s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -358,10 +344,13 @@ ack(SeqIds, S) -> %% state()) %% -> state()). -tx_publish(Txn, Msg, Props, S) -> +tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), - Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), - Result = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), + S1 = S #s { busy = true }, + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S1), + Result = + (store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S1)) + #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -375,11 +364,13 @@ tx_publish(Txn, Msg, Props, S) -> %% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). -tx_ack(Txn, SeqIds, S) -> +tx_ack(Txn, SeqIds, S = #s { busy = false }) -> rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), - Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), + S1 = S #s { busy = true }, + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S1), Result = - store_tx(Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S), + (store_tx(Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S1)) + #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -394,10 +385,10 @@ tx_ack(Txn, SeqIds, S) -> %% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). -tx_rollback(Txn, S) -> +tx_rollback(Txn, S = #s { busy = false }) -> rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), - #tx { to_ack = SeqIds } = lookup_tx(Txn, S), - Result = {SeqIds, erase_tx(Txn, S)}, + #tx { to_ack = SeqIds } = lookup_tx(Txn, S #s { busy = true }), + Result = {SeqIds, (erase_tx(Txn, S)) #s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -417,11 +408,15 @@ tx_rollback(Txn, S) -> %% state()) %% -> {[ack()], state()}). -tx_commit(Txn, F, PropsF, S) -> +tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> rabbit_log:info( "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), - #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), - Result = {SeqIds, tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S))}, + S1 = S #s { busy = true }, + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S1), + Result = + {SeqIds, + (tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S1))) + #s { busy = false }}, F(), rabbit_log:info(" -> ~p", [Result]), Result. @@ -437,7 +432,7 @@ tx_commit(Txn, F, PropsF, S) -> %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). -requeue(SeqIds, PropsF, S) -> +requeue(SeqIds, PropsF, S = #s { busy = false }) -> rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), {_, S1} = internal_ack3( @@ -445,8 +440,8 @@ requeue(SeqIds, PropsF, S) -> publish_state(Msg, PropsF(Props), true, Si) end, SeqIds, - S), - Result = S1, + S # s { busy = true }), + Result = S1 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -455,7 +450,7 @@ requeue(SeqIds, PropsF, S) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(#s { q = Q }) -> +len(#s { q = Q, busy = false }) -> % rabbit_log:info("len(~p) ->", [Q]), Result = queue:len(Q), % rabbit_log:info(" -> ~p", [Result]), @@ -467,7 +462,7 @@ len(#s { q = Q }) -> %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(#s { q = Q }) -> +is_empty(#s { q = Q, busy = false }) -> % rabbit_log:info("is_empty(~p)", [Q]), Result = queue:is_empty(Q), % rabbit_log:info(" -> ~p", [Result]), @@ -491,7 +486,7 @@ is_empty(#s { q = Q }) -> %% (('undefined' | 'infinity' | number()), state()) %% -> state()). -set_ram_duration_target(_, S) -> +set_ram_duration_target(_, S = #s { busy = false }) -> rabbit_log:info("set_ram_duration_target(_~p) ->", [S]), Result = S, rabbit_log:info(" -> ~p", [Result]), @@ -507,7 +502,7 @@ set_ram_duration_target(_, S) -> %% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). -ram_duration(S) -> +ram_duration(S = #s { busy = false }) -> rabbit_log:info("ram_duration(~p) ->", [S]), Result = {0, S}, rabbit_log:info(" -> ~p", [Result]), @@ -522,7 +517,7 @@ ram_duration(S) -> %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -needs_idle_timeout(_) -> +needs_idle_timeout(#s { busy = false }) -> rabbit_log:info("needs_idle_timeout(_) ->"), Result = false, rabbit_log:info(" -> ~p", [Result]), @@ -537,7 +532,7 @@ needs_idle_timeout(_) -> %% %% -spec(idle_timeout/1 :: (state()) -> state()). -idle_timeout(S) -> +idle_timeout(S = #s { busy = false }) -> rabbit_log:info("idle_timeout(~p) ->", [S]), Result = S, rabbit_log:info(" -> ~p", [Result]), @@ -551,9 +546,9 @@ idle_timeout(S) -> %% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -handle_pre_hibernate(S) -> - Result = S, +handle_pre_hibernate(S = #s { busy = false }) -> rabbit_log:info("handle_pre_hibernate(~p) ->", [S]), + Result = S, rabbit_log:info(" -> ~p", [Result]), Result. @@ -567,7 +562,8 @@ handle_pre_hibernate(S) -> status(#s { q = Q, next_seq_id = NextSeqId, - pending_ack_dict = PAD }) -> + pending_ack_dict = PAD, + busy = false}) -> rabbit_log:info("status(_) ->"), Result = [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, @@ -576,8 +572,36 @@ status(#s { q = Q, Result. %%---------------------------------------------------------------------------- -%% Various helpers -%%---------------------------------------------------------------------------- +%% Various helper functions. All functions are pure below this point, +%% and all S records are busy. +%% ---------------------------------------------------------------------------- + +-spec internal_queue_out(fun ((m(), state()) -> T), state()) -> + {empty, state()} | T. + +internal_queue_out(F, S = #s { q = Q }) -> + case queue:out(Q) of + {empty, _} -> {empty, S}; + {{value, M}, Qa} -> F(M, S #s { q = Qa }) + end. + +-spec internal_fetch/3 :: (ack_required(), m(), s()) -> {fetch_result(), s()}. + +internal_fetch(AckRequired, + M = #m { + seq_id = SeqId, + msg = Msg, + is_delivered = IsDelivered }, + S = #s { q = Q }) -> + {Ack, S1} = + case AckRequired of + true -> + {SeqId, + record_pending_ack_state( + M #m { is_delivered = true }, S)}; + false -> {blank_ack, S} + end, + {{Msg, IsDelivered, Ack, queue:len(Q)}, S1}. -spec(dropwhile_state/2 :: (fun ((rabbit_types:message_properties()) -> boolean()), s()) @@ -621,7 +645,7 @@ tx_commit_state(Pubs, SeqIds, PropsF, S) -> m(Msg, SeqId, Props) -> #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. --spec lookup_tx(rabbit_types:txn(), state()) -> tx(). +-spec lookup_tx(rabbit_types:txn(), s()) -> tx(). lookup_tx(Txn, #s { txn_dict = TxnDict }) -> case dict:find(Txn, TxnDict) of @@ -629,12 +653,12 @@ lookup_tx(Txn, #s { txn_dict = TxnDict }) -> {ok, Tx} -> Tx end. --spec store_tx(rabbit_types:txn(), tx(), state()) -> state(). +-spec store_tx(rabbit_types:txn(), tx(), s()) -> s(). store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. --spec erase_tx(rabbit_types:txn(), state()) -> state(). +-spec erase_tx(rabbit_types:txn(), s()) -> s(). erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> S #s { txn_dict = dict:erase(Txn, TxnDict) }. -- cgit v1.2.1 From 589b12098420313a05a0a7aa475505b8b38e6b6f Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 19 Jan 2011 15:51:49 -0800 Subject: All external calls are now wrapped in an mnesia:transaction(). --- src/rabbit_mnesia_queue.erl | 331 ++++++++++++++++++++++---------------------- 1 file changed, 162 insertions(+), 169 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 550ca127..3dd222ff 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -63,7 +63,7 @@ { q, % The in-Mnesia queue of Ms next_seq_id, % The next seq_id to use to build an M pending_ack_dict, % The Mnesia seq_id->M map, pending ack - txn_dict, % Map from txn to tx, in progress + txn_dict, % In-progress txn->tx map busy % Recursive calls not allowed }). @@ -118,9 +118,8 @@ %% start/1 promises that a list of (durable) queue names will be %% started in the near future. This lets us perform early checking %% necessary for the consistency of those queues or initialise other -%% shared resources. -%% -%% This function should be called only from outside this module. +%% shared resources. This function must not be called from inside +%% another operation. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). @@ -135,9 +134,8 @@ start(_DurableQueues) -> %%---------------------------------------------------------------------------- %% stop/0 tears down all state/resources upon shutdown. It might not -%% be called. -%% -%% This function should be called only from outside this module. +%% be called. This function must not be called from inside another +%% operation. %% %% -spec(stop/0 :: () -> 'ok'). @@ -148,37 +146,41 @@ stop() -> %%---------------------------------------------------------------------------- %% init/3 creates one backing queue, returning its state. Names are -%% local to the vhost, and need not be unique. +%% local to the vhost, and need not be unique. This function should +%% not be called from inside another operation. %% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) %% -> state()). -%% -%% This function should be called only from outside this module. %% BUG: Need to provide better back-pressure when queue is filling up. init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~p, _, _) ->", [QueueName]), - Result = #s { q = queue:new(), - next_seq_id = 0, - pending_ack_dict = dict:new(), - txn_dict = dict:new(), - busy = false}, + {atomic, Result} = + mnesia:transaction( + fun () -> + #s { q = queue:new(), + next_seq_id = 0, + pending_ack_dict = dict:new(), + txn_dict = dict:new(), + busy = false} + end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% terminate/1 is called on queue shutdown when the queue isn't being -%% deleted. -%% -%% This function should be called only from outside this module. +%% deleted. This function should not be called from inside another +%% operation. %% %% -spec(terminate/1 :: (state()) -> state()). terminate(S = #s { busy = false }) -> - Result = (remove_acks_state(S #s { busy = true })) #s { busy = false }, rabbit_log:info("terminate(~p) ->", [S]), + S1 = S #s { busy = true }, + {atomic, S2} = mnesia:transaction(fun () -> remove_acks_state(S1) end), + Result = S2 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -186,9 +188,8 @@ terminate(S = #s { busy = false }) -> %% delete_and_terminate/1 is called when the queue is terminating and %% needs to delete all its content. The only difference between purge %% and delete is that delete also needs to delete everything that's -%% been delivered and not ack'd. -%% -%% This function should be called only from outside this module. +%% been delivered and not ack'd. This function should not be called +%% from inside another operation. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). @@ -197,29 +198,35 @@ terminate(S = #s { busy = false }) -> delete_and_terminate(S) -> rabbit_log:info("delete_and_terminate(~p) ->", [S]), - Result = (remove_acks_state(S #s { q = queue:new(), busy = true })) #s { busy = false }, + S1 = S #s { busy = true }, + {atomic, S2} = + mnesia:transaction( + fun () -> remove_acks_state(S1 #s { q = queue:new() }) end), + Result = S2 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% purge/1 removes all messages in the queue, but not messages which -%% have been fetched and are pending acks. -%% -%% This function should be called only from outside this module. +%% have been fetched and are pending acks. This function should not be +%% called from inside another operation. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). purge(S = #s { q = Q, busy = false }) -> rabbit_log:info("purge(~p) ->", [S #s { busy = true }]), - Result = {queue:len(Q), S #s { q = queue:new(), busy = false }}, + S1 = S #s { busy = true }, + {atomic, {A, S2}} = + mnesia:transaction( + fun() -> {queue:len(Q), S1 #s { q = queue:new() }} end), + Result = {A, S2 #s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% publish/3 publishes a message. -%% -%% This function should be called only from outside this module. All -%% msgs are silently reated as non-persistent. +%% publish/3 publishes a message. This function should not be called +%% from inside another operation. All msgs are silently treated as +%% persistent. %% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), @@ -232,9 +239,10 @@ publish(Msg, Props, S = #s { busy = false }) -> rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), rabbit_log:info(" ~p) ->", [S]), - Result = - (publish_state(Msg, Props, false, S #s { busy = true })) - #s { busy = false }, + S1 = S #s { busy = true }, + {atomic, S2} = + mnesia:transaction(fun () -> publish_state(Msg, Props, false, S1) end), + Result = S2 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -242,9 +250,9 @@ publish(Msg, Props, S = #s { busy = false }) -> %% publish_delivered/4 is called for messages which have already been %% passed straight out to a client. The queue will be empty for these %% calls (i.e. saves the round trip through the backing queue). All -%% msgs are silently treated as non-persistent. -%% -%% This function should be called only from outside this module. +%% msgs are silently treated as non-persistent. This function should +%% not be called from inside another operation. All msgs are silently +%% treated as persistent. %% %% -spec(publish_delivered/4 :: %% (ack_required(), @@ -267,20 +275,23 @@ publish_delivered(true, rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), rabbit_log:info(" ~p) ->", [S]), - Result = - {SeqId, - (record_pending_ack_state( - (m(Msg, SeqId, Props)) #m { is_delivered = true }, - S #s { busy = true })) - #s { next_seq_id = SeqId + 1, busy = false }}, + S1 = S #s { busy = true }, + {atomic, {A, B}} = + mnesia:transaction( + fun () -> + {SeqId, + (record_pending_ack_state( + (m(Msg, SeqId, Props)) #m { is_delivered = true }, S1)) + #s { next_seq_id = SeqId + 1 }} + end), + Result = {A, B #s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% dropwhile/2 drops messages from the head of the queue while the -%% supplied predicate returns true. -%% -%% This function should be called only from outside this module. +%% supplied predicate returns true. This function should not be called +%% from inside another operation. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -288,34 +299,37 @@ publish_delivered(true, dropwhile(Pred, S = #s { busy = false }) -> rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), - {_, S1} = dropwhile_state(Pred, S #s { busy = true }), - Result = S1 #s { busy = false }, + S1 = S #s { busy = true }, + {atomic, {_, S2}} = + mnesia:transaction(fun () -> dropwhile_state(Pred, S1) end), + Result = S2 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% fetch/2 produces the next message. -%% -%% This function should be called only from outside this module. +%% fetch/2 produces the next message. This function should not be +%% called from inside another operation. %% %% -spec(fetch/2 :: (ack_required(), state()) -> %% {ok | fetch_result(), state()}). fetch(AckRequired, S = #s { busy = false }) -> rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), - {R, S1} = - internal_queue_out( - fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, - S #s { busy = true }), - Result = {R, S1 #s { busy = false } }, + S1 = S #s { busy = true }, + {atomic, {R, S2}} = + mnesia:transaction( + fun () -> + internal_queue_out( + fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, S1) + end), + Result = {R, S2 #s { busy = false } }, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% ack/2 acknowledges messages names by SeqIds. Maps SeqIds to guids -%% upon return. -%% -%% This function should be called only from outside this module. +%% upon return. This function should not be called from inside another +%% operation. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -324,18 +338,18 @@ fetch(AckRequired, S = #s { busy = false }) -> ack(SeqIds, S = #s { busy = false }) -> rabbit_log:info("ack("), rabbit_log:info("~p,", [SeqIds]), - rabbit_log:info(" ~p) ->", [S #s { busy = true }]), - {Guids, S1} = internal_ack(SeqIds, S), - Result = {Guids, S1 # s { busy = false }}, + rabbit_log:info(" ~p) ->", [S]), + S1 = S #s { busy = true }, + {atomic, {Guids, S2}} = + mnesia:transaction(fun () -> internal_ack(SeqIds, S1) end), + Result = {Guids, S2 # s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. It %% stores the message and its properties in the to_pub field of the txn, -%% waiting to be committed. -%% -%% This function should be called only from outside this module. +%% waiting to be committed. This function should not be called from inside another operation. %% %% -spec(tx_publish/4 :: %% (rabbit_types:txn(), @@ -347,18 +361,20 @@ ack(SeqIds, S = #s { busy = false }) -> tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), S1 = S #s { busy = true }, - Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S1), - Result = - (store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S1)) - #s { busy = false }, + {atomic, S2} = + mnesia:transaction( + fun () -> + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S1), + store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S1) + end), + Result = S2 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% tx_ack/3 acks, but in the context of a transaction. It stores the -%% seq_id in the acks field of the txn, waiting to be committed. -%% -%% This function should be called only from outside this module. +%% seq_id in the acks field of the txn, waiting to be committed. This +%% function should not be called from inside another operation. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -367,19 +383,22 @@ tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> tx_ack(Txn, SeqIds, S = #s { busy = false }) -> rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), S1 = S #s { busy = true }, - Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S1), - Result = - (store_tx(Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S1)) - #s { busy = false }, + {atomic, S2} = + mnesia:transaction( + fun () -> + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S1), + store_tx( + Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S1) + end), + Result = S2 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% tx_rollback/2 undoes anything which has been done in the context of %% the specified transaction. It returns the state with to_pub and -%% to_ack erased. -%% -%% This function should be called only from outside this module. +%% to_ack erased. This function should not be called from inside +%% another operation. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -387,17 +406,22 @@ tx_ack(Txn, SeqIds, S = #s { busy = false }) -> tx_rollback(Txn, S = #s { busy = false }) -> rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), - #tx { to_ack = SeqIds } = lookup_tx(Txn, S #s { busy = true }), - Result = {SeqIds, (erase_tx(Txn, S)) #s { busy = false }}, + S1 = S #s { busy = true }, + {atomic, {A, B}} = + mnesia:transaction( + fun () -> + #tx { to_ack = SeqIds } = lookup_tx(Txn, S1), + {SeqIds, (erase_tx(Txn, S))} + end), + Result = {A, B #s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% tx_commit/4 commits a transaction. The F passed in must be called %% once the messages have really been commited. This CPS permits the -%% possibility of commit coalescing. -%% -%% This function should be called only from outside this module. +%% possibility of commit coalescing. This function should not be +%% called from inside another operation. %% %% The following spec is wrong, blank_acks cannot be returned. %% @@ -412,20 +436,22 @@ tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> rabbit_log:info( "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), S1 = S #s { busy = true }, - #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S1), - Result = - {SeqIds, - (tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S1))) - #s { busy = false }}, + {atomic, {A, B}} = + mnesia:transaction( + fun () -> + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S1), + {SeqIds, + tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S1))} + end), F(), + Result = {A, B #s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% requeue/3 reinserts messages into the queue which have already been -%% delivered and were pending acknowledgement. -%% -%% This function should be called only from outside this module. +%% delivered and were pending acknowledgement. This function should +%% not be called from inside another operation. %% %% The following spec is wrong, as blank_acks cannot be passed back in. %% @@ -434,14 +460,18 @@ tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> requeue(SeqIds, PropsF, S = #s { busy = false }) -> rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), - {_, S1} = - internal_ack3( - fun (#m { msg = Msg, props = Props }, Si) -> - publish_state(Msg, PropsF(Props), true, Si) - end, - SeqIds, - S # s { busy = true }), - Result = S1 #s { busy = false }, + S1 = S #s { busy = true }, + {atomic, {_, S2}} = + mnesia:transaction( + fun () -> + internal_ack3( + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) + end, + SeqIds, + S1) + end), + Result = S2 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -451,9 +481,9 @@ requeue(SeqIds, PropsF, S = #s { busy = false }) -> %% -spec(len/1 :: (state()) -> non_neg_integer()). len(#s { q = Q, busy = false }) -> -% rabbit_log:info("len(~p) ->", [Q]), - Result = queue:len(Q), -% rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("len(~p) ->", [Q]), + {atomic, Result} = mnesia:transaction(fun () -> queue:len(Q) end), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -463,100 +493,68 @@ len(#s { q = Q, busy = false }) -> %% -spec(is_empty/1 :: (state()) -> boolean()). is_empty(#s { q = Q, busy = false }) -> -% rabbit_log:info("is_empty(~p)", [Q]), - Result = queue:is_empty(Q), -% rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("is_empty(~p)", [Q]), + {atomic, Result} = mnesia:transaction(fun () -> queue:is_empty(Q) end), + rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% For the next two functions, the assumption is that you're -%% monitoring something like the ingress and egress rates of the -%% queue. The RAM duration is thus the length of time represented by -%% the messages held in RAM given the current rates. If you want to -%% ignore all of this stuff, then do so, and return 0 in -%% ram_duration/1. - %% set_ram_duration_target states that the target is to have no more %% messages in RAM than indicated by the duration and the current -%% queue rates. -%% -%% This function should be called only from outside this module. +%% queue rates. It is ignored in this implementation. This function +%% should not be called from inside another operation. %% %% -spec(set_ram_duration_target/2 :: %% (('undefined' | 'infinity' | number()), state()) %% -> state()). -set_ram_duration_target(_, S = #s { busy = false }) -> - rabbit_log:info("set_ram_duration_target(_~p) ->", [S]), - Result = S, - rabbit_log:info(" -> ~p", [Result]), - Result. +set_ram_duration_target(_, S = #s { busy = false }) -> S. %%---------------------------------------------------------------------------- %% ram_duration/1 optionally recalculates the duration internally %% (likely to be just update your internal rates), and report how many %% seconds the messages in RAM represent given the current rates of -%% the queue. -%% -%% This function should be called only from outside this module. +%% the queue. It is a dummy in this implementation. This function +%% should not be called from inside another operation. %% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). -ram_duration(S = #s { busy = false }) -> - rabbit_log:info("ram_duration(~p) ->", [S]), - Result = {0, S}, - rabbit_log:info(" -> ~p", [Result]), - Result. +ram_duration(S = #s { busy = false }) -> {0, S}. %%---------------------------------------------------------------------------- -%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be -%% called as soon as the queue process can manage (either on an empty -%% mailbox, or when a timer fires), and 'false' otherwise. -%% -%% This function should be called only from outside this module. +%% needs_idle_timeout/1 returns true if idle_timeout should be called +%% as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires), and false otherwise. It always +%% returns false in this implementation. This function should not be +%% called from inside another operation. %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -needs_idle_timeout(#s { busy = false }) -> - rabbit_log:info("needs_idle_timeout(_) ->"), - Result = false, - rabbit_log:info(" -> ~p", [Result]), - Result. +needs_idle_timeout(#s { busy = false }) -> false. %%---------------------------------------------------------------------------- -%% idle_timeout/1 is called (eventually) after needs_idle_timeout returns -%% 'true'. Note this may be called more than once for each 'true' -%% returned from needs_idle_timeout. -%% -%% This function should be called only from outside this module. +%% idle_timeout/1 is called (eventually) after needs_idle_timeout +%% returns true. It is a dummy in this implementation. This function +%% should not be called from inside another operation. %% %% -spec(idle_timeout/1 :: (state()) -> state()). -idle_timeout(S = #s { busy = false }) -> - rabbit_log:info("idle_timeout(~p) ->", [S]), - Result = S, - rabbit_log:info(" -> ~p", [Result]), - Result. +idle_timeout(S = #s { busy = false }) -> S. %%---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue -%% hibernates. -%% -%% This function should be called only from outside this module. +%% hibernates. It is a dummy in this implementation. This function +%% should not be called from inside another operation. %% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -handle_pre_hibernate(S = #s { busy = false }) -> - rabbit_log:info("handle_pre_hibernate(~p) ->", [S]), - Result = S, - rabbit_log:info(" -> ~p", [Result]), - Result. +handle_pre_hibernate(S = #s { busy = false }) -> S. %%---------------------------------------------------------------------------- -%% status/1 exists for debugging purposes, to be able to expose state -%% via rabbitmqctl list_queues backing_queue_status -%% -%% This function should be called only from outside this module. +%% status/1 exists for debugging and operational purposes, to be able +%% to expose state via rabbitmqctl. This function should not be called +%% from inside another operation. This function should be +%% transactional but it is not. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). @@ -564,16 +562,11 @@ status(#s { q = Q, next_seq_id = NextSeqId, pending_ack_dict = PAD, busy = false}) -> - rabbit_log:info("status(_) ->"), - Result = [{len, queue:len(Q)}, - {next_seq_id, NextSeqId}, - {acks, dict:size(PAD)}], - rabbit_log:info(" ~p", [Result]), - Result. + [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, dict:size(PAD)}]. %%---------------------------------------------------------------------------- -%% Various helper functions. All functions are pure below this point, -%% and all S records are busy. +%% Various internal helper functions. All functions are pure below +%% this point, and all S records are busy. %% ---------------------------------------------------------------------------- -spec internal_queue_out(fun ((m(), state()) -> T), state()) -> -- cgit v1.2.1 From 4b5f96a8c2c754a60fe360d1e1acb29d2b059c08 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 19 Jan 2011 16:23:59 -0800 Subject: Creates Mnesia table. Fixed comments. --- src/rabbit_mnesia_queue.erl | 148 ++++++++++++++++++++++++++------------------ 1 file changed, 87 insertions(+), 61 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 3dd222ff..a763f43c 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -48,19 +48,19 @@ %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- -%% This module wraps messages into M records for internal use, -%% containing the messages themselves and additional -%% information. Pending acks are also recorded in memory as M records. +%% This module wraps msgs into M records for internal use, containing +%% the msgs themselves and additional information. Pending acks are +%% also recorded in memory as M records. %% -%% All queues are durable in this version, and all messages are -%% treated as persistent. (This might break some tests for non-durable -%% queues.) +%% All queues are durable in this version, and all msgs are treated as +%% persistent. (This might break some tests for non-durable queues.) %% ---------------------------------------------------------------------------- -behaviour(rabbit_backing_queue). -record(s, % The in-RAM queue state - { q, % The in-Mnesia queue of Ms + { mnesia_table_name, % An atom holding the Mnesia table name + q, % The in-Mnesia queue of Ms next_seq_id, % The next seq_id to use to build an M pending_ack_dict, % The Mnesia seq_id->M map, pending ack txn_dict, % In-progress txn->tx map @@ -70,7 +70,7 @@ -record(m, % A wrapper aroung a msg { seq_id, % The seq_id for the msg msg, % The msg itself - props, % The message properties + props, % The msg properties is_delivered % Has the msg been delivered? (for reporting) }). @@ -89,7 +89,8 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(s() :: #s { q :: queue(), +-type(s() :: #s { mnesia_table_name :: atom(), + q :: queue(), next_seq_id :: seq_id(), pending_ack_dict :: dict(), txn_dict :: dict(), @@ -118,8 +119,8 @@ %% start/1 promises that a list of (durable) queue names will be %% started in the near future. This lets us perform early checking %% necessary for the consistency of those queues or initialise other -%% shared resources. This function must not be called from inside -%% another operation. +%% shared resources. This function creates a transaction and must not +%% be called from inside another transaction. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). @@ -134,8 +135,8 @@ start(_DurableQueues) -> %%---------------------------------------------------------------------------- %% stop/0 tears down all state/resources upon shutdown. It might not -%% be called. This function must not be called from inside another -%% operation. +%% be called. This function creates a transaction and must not be +%% called from inside another transaction. %% %% -spec(stop/0 :: () -> 'ok'). @@ -146,8 +147,9 @@ stop() -> %%---------------------------------------------------------------------------- %% init/3 creates one backing queue, returning its state. Names are -%% local to the vhost, and need not be unique. This function should -%% not be called from inside another operation. +%% local to the vhost, and must be unique. This function creates +%% transactions and must not be called from inside another +%% transaction. %% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) @@ -157,10 +159,19 @@ stop() -> init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~p, _, _) ->", [QueueName]), + MnesiaTableName = mnesia_table_name(QueueName), + %% It's unfortunate that tables cannot be created and deleted + %% within an Mnesia transaction. + _ = (catch mnesia:delete_table(MnesiaTableName)), + {atomic, ok} = + (catch mnesia:create_table( + MnesiaTableName, + [{record_name, s}, {attributes, record_info(fields, s)}])), {atomic, Result} = mnesia:transaction( fun () -> - #s { q = queue:new(), + #s { mnesia_table_name = MnesiaTableName, + q = queue:new(), next_seq_id = 0, pending_ack_dict = dict:new(), txn_dict = dict:new(), @@ -171,8 +182,8 @@ init(QueueName, _IsDurable, _Recover) -> %%---------------------------------------------------------------------------- %% terminate/1 is called on queue shutdown when the queue isn't being -%% deleted. This function should not be called from inside another -%% operation. +%% deleted. This function creates a transaction and must not be called +%% from inside another transaction. %% %% -spec(terminate/1 :: (state()) -> state()). @@ -188,8 +199,8 @@ terminate(S = #s { busy = false }) -> %% delete_and_terminate/1 is called when the queue is terminating and %% needs to delete all its content. The only difference between purge %% and delete is that delete also needs to delete everything that's -%% been delivered and not ack'd. This function should not be called -%% from inside another operation. +%% been delivered and not ack'd. This function creates a transaction +%% and must not be called from inside another transaction. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). @@ -207,9 +218,9 @@ delete_and_terminate(S) -> Result. %%---------------------------------------------------------------------------- -%% purge/1 removes all messages in the queue, but not messages which -%% have been fetched and are pending acks. This function should not be -%% called from inside another operation. +%% purge/1 removes all msgs in the queue, but not msgs which have been +%% fetched and are pending acks. This function creates a transaction +%% and must not be called from inside another transaction. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). @@ -224,9 +235,9 @@ purge(S = #s { q = Q, busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% publish/3 publishes a message. This function should not be called -%% from inside another operation. All msgs are silently treated as -%% persistent. +%% publish/3 publishes a msg. This function creates a transaction and +%% must not be called from inside another transaction. All msgs are +%% silently treated as persistent. %% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), @@ -247,12 +258,12 @@ publish(Msg, Props, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% publish_delivered/4 is called for messages which have already been +%% publish_delivered/4 is called for msgs which have already been %% passed straight out to a client. The queue will be empty for these %% calls (i.e. saves the round trip through the backing queue). All -%% msgs are silently treated as non-persistent. This function should -%% not be called from inside another operation. All msgs are silently -%% treated as persistent. +%% msgs are silently treated as non-persistent. This function creates +%% a transaction and must not be called from inside another +%% transaction. All msgs are silently treated as persistent. %% %% -spec(publish_delivered/4 :: %% (ack_required(), @@ -289,9 +300,9 @@ publish_delivered(true, Result. %%---------------------------------------------------------------------------- -%% dropwhile/2 drops messages from the head of the queue while the -%% supplied predicate returns true. This function should not be called -%% from inside another operation. +%% dropwhile/2 drops msgs from the head of the queue while the +%% supplied predicate returns true. This function creates a +%% transaction and must not be called from inside another transaction. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -307,8 +318,8 @@ dropwhile(Pred, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% fetch/2 produces the next message. This function should not be -%% called from inside another operation. +%% fetch/2 produces the next msg. This function creates a transaction +%% and must not be called from inside another transaction. %% %% -spec(fetch/2 :: (ack_required(), state()) -> %% {ok | fetch_result(), state()}). @@ -327,9 +338,9 @@ fetch(AckRequired, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% ack/2 acknowledges messages names by SeqIds. Maps SeqIds to guids -%% upon return. This function should not be called from inside another -%% operation. +%% ack/2 acknowledges msgs names by SeqIds. Maps SeqIds to guids upon +%% return. This function creates a transaction and must not be called +%% from inside another transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -348,8 +359,9 @@ ack(SeqIds, S = #s { busy = false }) -> %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish, but in the context of a transaction. It -%% stores the message and its properties in the to_pub field of the txn, -%% waiting to be committed. This function should not be called from inside another operation. +%% stores the msg and its properties in the to_pub field of the txn, +%% waiting to be committed. This function creates a transaction and +%% must not be called from inside another transaction. %% %% -spec(tx_publish/4 :: %% (rabbit_types:txn(), @@ -374,7 +386,8 @@ tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> %%---------------------------------------------------------------------------- %% tx_ack/3 acks, but in the context of a transaction. It stores the %% seq_id in the acks field of the txn, waiting to be committed. This -%% function should not be called from inside another operation. +%% function creates a transaction and must not be called from inside +%% another transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -397,8 +410,8 @@ tx_ack(Txn, SeqIds, S = #s { busy = false }) -> %%---------------------------------------------------------------------------- %% tx_rollback/2 undoes anything which has been done in the context of %% the specified transaction. It returns the state with to_pub and -%% to_ack erased. This function should not be called from inside -%% another operation. +%% to_ack erased. This function creates a transaction and must not be +%% called from inside another transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -419,9 +432,9 @@ tx_rollback(Txn, S = #s { busy = false }) -> %%---------------------------------------------------------------------------- %% tx_commit/4 commits a transaction. The F passed in must be called -%% once the messages have really been commited. This CPS permits the -%% possibility of commit coalescing. This function should not be -%% called from inside another operation. +%% once the msgs have really been commited. This CPS permits the +%% possibility of commit coalescing. This function creates a +%% transaction and must not be called from inside another transaction. %% %% The following spec is wrong, blank_acks cannot be returned. %% @@ -449,9 +462,9 @@ tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% requeue/3 reinserts messages into the queue which have already been -%% delivered and were pending acknowledgement. This function should -%% not be called from inside another operation. +%% requeue/3 reinserts msgs into the queue which have already been +%% delivered and were pending acknowledgement. This function creates a +%% transaction and must not be called from inside another transaction. %% %% The following spec is wrong, as blank_acks cannot be passed back in. %% @@ -500,9 +513,10 @@ is_empty(#s { q = Q, busy = false }) -> %%---------------------------------------------------------------------------- %% set_ram_duration_target states that the target is to have no more -%% messages in RAM than indicated by the duration and the current -%% queue rates. It is ignored in this implementation. This function -%% should not be called from inside another operation. +%% msgs in RAM than indicated by the duration and the current queue +%% rates. It is ignored in this implementation. This function creates +%% a transaction and must not be called from inside another +%% transaction. %% %% -spec(set_ram_duration_target/2 :: %% (('undefined' | 'infinity' | number()), state()) @@ -513,9 +527,10 @@ set_ram_duration_target(_, S = #s { busy = false }) -> S. %%---------------------------------------------------------------------------- %% ram_duration/1 optionally recalculates the duration internally %% (likely to be just update your internal rates), and report how many -%% seconds the messages in RAM represent given the current rates of -%% the queue. It is a dummy in this implementation. This function -%% should not be called from inside another operation. +%% seconds the msgs in RAM represent given the current rates of the +%% queue. It is a dummy in this implementation. This function creates +%% a transaction and must not be called from inside another +%% transaction. %% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). @@ -525,8 +540,8 @@ ram_duration(S = #s { busy = false }) -> {0, S}. %% needs_idle_timeout/1 returns true if idle_timeout should be called %% as soon as the queue process can manage (either on an empty %% mailbox, or when a timer fires), and false otherwise. It always -%% returns false in this implementation. This function should not be -%% called from inside another operation. +%% returns false in this implementation. This function creates a +%% transaction and must not be called from inside another transaction. %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). @@ -535,7 +550,8 @@ needs_idle_timeout(#s { busy = false }) -> false. %%---------------------------------------------------------------------------- %% idle_timeout/1 is called (eventually) after needs_idle_timeout %% returns true. It is a dummy in this implementation. This function -%% should not be called from inside another operation. +%% creates a transaction and must not be called from inside another +%% transaction. %% %% -spec(idle_timeout/1 :: (state()) -> state()). @@ -544,7 +560,8 @@ idle_timeout(S = #s { busy = false }) -> S. %%---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue %% hibernates. It is a dummy in this implementation. This function -%% should not be called from inside another operation. +%% creates a transaction and must not be called from inside another +%% transaction. %% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). @@ -552,8 +569,7 @@ handle_pre_hibernate(S = #s { busy = false }) -> S. %%---------------------------------------------------------------------------- %% status/1 exists for debugging and operational purposes, to be able -%% to expose state via rabbitmqctl. This function should not be called -%% from inside another operation. This function should be +%% to expose state via rabbitmqctl. This function should be %% transactional but it is not. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). @@ -704,3 +720,13 @@ internal_ack3(F, SeqIds, S) -> -spec m_guid(m()) -> rabbit_guid:guid(). m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. + +%% Convert a queue name (a record) into an Mnesia table name (an atom). + +%% TODO: Import correct argument type. + +-spec mnesia_table_name(_) -> atom(). + +mnesia_table_name(QueueName) -> + list_to_atom(lists:flatten(io_lib:format("~p", [QueueName]))). + -- cgit v1.2.1 From ec02e65ba1a83e1e6a737b497e2c52889e83ba2f Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 19 Jan 2011 17:33:22 -0800 Subject: More scaffolding: q is now a maybe(queue()). Improved comments. --- src/rabbit_mnesia_queue.erl | 217 ++++++++++++++++++++++++-------------------- 1 file changed, 118 insertions(+), 99 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index a763f43c..c58231f3 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -40,22 +40,24 @@ %%---------------------------------------------------------------------------- %% This is a simple implementation of the rabbit_backing_queue -%% behavior, with all msgs in Mnesia. It uses the Mnesia interface as -%% it appears to be implemented, which is not how it is documented. +%% behavior, with all msgs in Mnesia. %% %% This will eventually be structured as a plug-in instead of an extra %% module in the middle of the server tree.... %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- -%% This module wraps msgs into M records for internal use, containing -%% the msgs themselves and additional information. Pending acks are -%% also recorded in memory as M records. +%% This module wraps msgs into M records for internal use, including +%% additional information. Pending acks are also recorded in memory as +%% Ms. %% %% All queues are durable in this version, and all msgs are treated as -%% persistent. (This might break some tests for non-durable queues.) +%% persistent. (This will no doubt break some tests for non-durable +%% queues.) %% ---------------------------------------------------------------------------- +%% BUG: Need to provide better back-pressure when queue is filling up. + -behaviour(rabbit_backing_queue). -record(s, % The in-RAM queue state @@ -86,11 +88,13 @@ %% -ifdef(use_specs). +-type(maybe(T) :: nothing | {just, T}). + -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). -type(s() :: #s { mnesia_table_name :: atom(), - q :: queue(), + q :: maybe(queue()), next_seq_id :: seq_id(), pending_ack_dict :: dict(), txn_dict :: dict(), @@ -119,8 +123,9 @@ %% start/1 promises that a list of (durable) queue names will be %% started in the near future. This lets us perform early checking %% necessary for the consistency of those queues or initialise other -%% shared resources. This function creates a transaction and must not -%% be called from inside another transaction. +%% shared resources. This function creates an Mnesia transaction to +%% run in, and must not be called from inside another Mnesia +%% transaction. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). @@ -135,8 +140,8 @@ start(_DurableQueues) -> %%---------------------------------------------------------------------------- %% stop/0 tears down all state/resources upon shutdown. It might not -%% be called. This function creates a transaction and must not be -%% called from inside another transaction. +%% be called. This function creates an Mnesia transaction to run in, +%% and must not be called from inside another Mnesia transaction. %% %% -spec(stop/0 :: () -> 'ok'). @@ -148,30 +153,33 @@ stop() -> %%---------------------------------------------------------------------------- %% init/3 creates one backing queue, returning its state. Names are %% local to the vhost, and must be unique. This function creates -%% transactions and must not be called from inside another -%% transaction. +%% Mnesia transactions to run in, and must not be called from inside +%% another Mnesia transaction. %% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) %% -> state()). -%% BUG: Need to provide better back-pressure when queue is filling up. - init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~p, _, _) ->", [QueueName]), MnesiaTableName = mnesia_table_name(QueueName), - %% It's unfortunate that tables cannot be created and deleted - %% within an Mnesia transaction. - _ = (catch mnesia:delete_table(MnesiaTableName)), - {atomic, ok} = - (catch mnesia:create_table( - MnesiaTableName, - [{record_name, s}, {attributes, record_info(fields, s)}])), + %% It's unfortunate that tables cannot be created or deleted + %% within an Mnesia transaction! + Attributes = record_info(fields, s), + case mnesia:create_table( + MnesiaTableName, [{record_name, s}, {attributes, Attributes}]) + of + {atomic, ok} -> ok; + {aborted, {already_exists, MnesiaTableName}} -> + s = mnesia:table_info(MnesiaTableName, record_name), + Attributes = mnesia:table_info(MnesiaTableName, attributes), + ok + end, {atomic, Result} = mnesia:transaction( fun () -> #s { mnesia_table_name = MnesiaTableName, - q = queue:new(), + q = {just, queue:new()}, next_seq_id = 0, pending_ack_dict = dict:new(), txn_dict = dict:new(), @@ -182,15 +190,17 @@ init(QueueName, _IsDurable, _Recover) -> %%---------------------------------------------------------------------------- %% terminate/1 is called on queue shutdown when the queue isn't being -%% deleted. This function creates a transaction and must not be called -%% from inside another transaction. +%% deleted. This function creates an Mnesia transaction to run in, and +%% must not be called from inside another Mnesia transaction. %% %% -spec(terminate/1 :: (state()) -> state()). terminate(S = #s { busy = false }) -> rabbit_log:info("terminate(~p) ->", [S]), S1 = S #s { busy = true }, - {atomic, S2} = mnesia:transaction(fun () -> remove_acks_state(S1) end), + {atomic, S2} = + mnesia:transaction( + fun () -> S1 #s { pending_ack_dict = dict:new() } end), Result = S2 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -199,8 +209,9 @@ terminate(S = #s { busy = false }) -> %% delete_and_terminate/1 is called when the queue is terminating and %% needs to delete all its content. The only difference between purge %% and delete is that delete also needs to delete everything that's -%% been delivered and not ack'd. This function creates a transaction -%% and must not be called from inside another transaction. +%% been delivered and not ack'd. This function creates an Mnesia +%% transaction to run in, and must not be called from inside another +%% Mnesia transaction. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). @@ -212,32 +223,36 @@ delete_and_terminate(S) -> S1 = S #s { busy = true }, {atomic, S2} = mnesia:transaction( - fun () -> remove_acks_state(S1 #s { q = queue:new() }) end), + fun () -> + S1 #s { q = {just, queue:new()}, + pending_ack_dict = dict:new() } + end), Result = S2 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% purge/1 removes all msgs in the queue, but not msgs which have been -%% fetched and are pending acks. This function creates a transaction -%% and must not be called from inside another transaction. +%% purge/1 removes all msgs in the queue, but not msgs that have been +%% fetched and are pending acks. This function creates an Mnesia +%% transaction to run in, and must not be called from inside another +%% Mnesia transaction. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(S = #s { q = Q, busy = false }) -> +purge(S = #s { q = {just, Q}, busy = false }) -> rabbit_log:info("purge(~p) ->", [S #s { busy = true }]), S1 = S #s { busy = true }, {atomic, {A, S2}} = mnesia:transaction( - fun() -> {queue:len(Q), S1 #s { q = queue:new() }} end), + fun() -> {queue:len(Q), S1 #s { q = {just, queue:new()} }} end), Result = {A, S2 #s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% publish/3 publishes a msg. This function creates a transaction and -%% must not be called from inside another transaction. All msgs are -%% silently treated as persistent. +%% publish/3 publishes a msg. This function creates an Mnesia +%% transaction to run in, and must not be called from inside another +%% Mnesia transaction. All msgs are silently treated as persistent. %% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), @@ -258,12 +273,13 @@ publish(Msg, Props, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% publish_delivered/4 is called for msgs which have already been +%% publish_delivered/4 is called for msgs that have already been %% passed straight out to a client. The queue will be empty for these -%% calls (i.e. saves the round trip through the backing queue). All -%% msgs are silently treated as non-persistent. This function creates -%% a transaction and must not be called from inside another -%% transaction. All msgs are silently treated as persistent. +%% calls (saving the round trip through the backing queue). All msgs +%% are silently treated as non-persistent. This function creates an +%% Mnesia transaction to run in, and must not be called from inside +%% another Mnesia transaction. All msgs are silently treated as +%% persistent. %% %% -spec(publish_delivered/4 :: %% (ack_required(), @@ -301,8 +317,9 @@ publish_delivered(true, %%---------------------------------------------------------------------------- %% dropwhile/2 drops msgs from the head of the queue while the -%% supplied predicate returns true. This function creates a -%% transaction and must not be called from inside another transaction. +%% supplied predicate returns true. This function creates an Mnesia +%% transaction to run in, and must not be called from inside another +%% Mnesia transaction. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -318,8 +335,9 @@ dropwhile(Pred, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% fetch/2 produces the next msg. This function creates a transaction -%% and must not be called from inside another transaction. +%% fetch/2 produces the next msg. This function creates an Mnesia +%% transaction to run in, and must not be called from inside another +%% Mnesia transaction. %% %% -spec(fetch/2 :: (ack_required(), state()) -> %% {ok | fetch_result(), state()}). @@ -339,8 +357,8 @@ fetch(AckRequired, S = #s { busy = false }) -> %%---------------------------------------------------------------------------- %% ack/2 acknowledges msgs names by SeqIds. Maps SeqIds to guids upon -%% return. This function creates a transaction and must not be called -%% from inside another transaction. +%% return. This function creates an Mnesia transaction to run in, and +%% must not be called from inside another Mnesia transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -358,10 +376,11 @@ ack(SeqIds, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% tx_publish/4 is a publish, but in the context of a transaction. It -%% stores the msg and its properties in the to_pub field of the txn, -%% waiting to be committed. This function creates a transaction and -%% must not be called from inside another transaction. +%% tx_publish/4 is a publish, but in the context of an AMQP +%% transaction. It stores the msg and its properties in the to_pub +%% field of the txn, waiting to be committed. This function creates an +%% Mnesia transaction to run in, and must not be called from inside +%% another Mnesia transaction. %% %% -spec(tx_publish/4 :: %% (rabbit_types:txn(), @@ -384,10 +403,10 @@ tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% tx_ack/3 acks, but in the context of a transaction. It stores the -%% seq_id in the acks field of the txn, waiting to be committed. This -%% function creates a transaction and must not be called from inside -%% another transaction. +%% tx_ack/3 acks, but in the context of an AMQP transaction. It stores +%% the seq_id in the acks field of the txn, waiting to be +%% committed. This function creates an Mnesia transaction to run in, +%% and must not be called from inside another Mnesia transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -408,10 +427,11 @@ tx_ack(Txn, SeqIds, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% tx_rollback/2 undoes anything which has been done in the context of -%% the specified transaction. It returns the state with to_pub and -%% to_ack erased. This function creates a transaction and must not be -%% called from inside another transaction. +%% tx_rollback/2 undoes anything that has been done in the context of +%% the specified AMQP transaction. It returns the state with to_pub +%% and to_ack erased. This function creates an Mnesia transaction to +%% run in, and must not be called from inside another Mnesia +%% transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -431,10 +451,11 @@ tx_rollback(Txn, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% tx_commit/4 commits a transaction. The F passed in must be called -%% once the msgs have really been commited. This CPS permits the -%% possibility of commit coalescing. This function creates a -%% transaction and must not be called from inside another transaction. +%% tx_commit/4 commits an AMQP transaction. The F passed in must be +%% called once the msgs have really been commited. This CPS permits +%% the possibility of commit coalescing. This function creates an +%% Mnesia transaction to run in, and must not be called from inside +%% another Mnesia transaction. %% %% The following spec is wrong, blank_acks cannot be returned. %% @@ -462,9 +483,10 @@ tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% requeue/3 reinserts msgs into the queue which have already been -%% delivered and were pending acknowledgement. This function creates a -%% transaction and must not be called from inside another transaction. +%% requeue/3 reinserts msgs into the queue that have already been +%% delivered and were pending acknowledgement. This function creates +%% an Mnesia transaction to run in, and must not be called from inside +%% another Mnesia transaction. %% %% The following spec is wrong, as blank_acks cannot be passed back in. %% @@ -489,23 +511,24 @@ requeue(SeqIds, PropsF, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% len/1 returns the queue length. +%% len/1 returns the queue length. It should be Mnesia transactional +%% but it is not. %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(#s { q = Q, busy = false }) -> +len(#s { q = {just, Q}, busy = false }) -> rabbit_log:info("len(~p) ->", [Q]), {atomic, Result} = mnesia:transaction(fun () -> queue:len(Q) end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% is_empty/1 returns 'true' if the queue is empty, and 'false' -%% otherwise. +%% is_empty/1 returns true if the queue is empty, and false +%% otherwise. It should be Mnesia transactional but it is not. %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(#s { q = Q, busy = false }) -> +is_empty(#s { q = {just, Q}, busy = false }) -> rabbit_log:info("is_empty(~p)", [Q]), {atomic, Result} = mnesia:transaction(fun () -> queue:is_empty(Q) end), rabbit_log:info(" -> ~p", [Result]), @@ -515,8 +538,8 @@ is_empty(#s { q = Q, busy = false }) -> %% set_ram_duration_target states that the target is to have no more %% msgs in RAM than indicated by the duration and the current queue %% rates. It is ignored in this implementation. This function creates -%% a transaction and must not be called from inside another -%% transaction. +%% an Mnesia transaction to run in, and must not be called from inside +%% another Mnesia transaction. %% %% -spec(set_ram_duration_target/2 :: %% (('undefined' | 'infinity' | number()), state()) @@ -529,8 +552,8 @@ set_ram_duration_target(_, S = #s { busy = false }) -> S. %% (likely to be just update your internal rates), and report how many %% seconds the msgs in RAM represent given the current rates of the %% queue. It is a dummy in this implementation. This function creates -%% a transaction and must not be called from inside another -%% transaction. +%% an Mnesia transaction to run in, and must not be called from inside +%% another Mnesia transaction. %% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). @@ -540,8 +563,9 @@ ram_duration(S = #s { busy = false }) -> {0, S}. %% needs_idle_timeout/1 returns true if idle_timeout should be called %% as soon as the queue process can manage (either on an empty %% mailbox, or when a timer fires), and false otherwise. It always -%% returns false in this implementation. This function creates a -%% transaction and must not be called from inside another transaction. +%% returns false in this implementation. This function creates an +%% Mnesia transaction to run in, and must not be called from inside +%% another Mnesia transaction. %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). @@ -550,8 +574,8 @@ needs_idle_timeout(#s { busy = false }) -> false. %%---------------------------------------------------------------------------- %% idle_timeout/1 is called (eventually) after needs_idle_timeout %% returns true. It is a dummy in this implementation. This function -%% creates a transaction and must not be called from inside another -%% transaction. +%% creates an Mnesia transaction to run in, and must not be called +%% from inside another Mnesia transaction. %% %% -spec(idle_timeout/1 :: (state()) -> state()). @@ -560,8 +584,8 @@ idle_timeout(S = #s { busy = false }) -> S. %%---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue %% hibernates. It is a dummy in this implementation. This function -%% creates a transaction and must not be called from inside another -%% transaction. +%% creates an Mnesia transaction to run in, and must not be called +%% from inside another Mnesia transaction. %% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). @@ -569,12 +593,12 @@ handle_pre_hibernate(S = #s { busy = false }) -> S. %%---------------------------------------------------------------------------- %% status/1 exists for debugging and operational purposes, to be able -%% to expose state via rabbitmqctl. This function should be +%% to expose state via rabbitmqctl. This function should be Mnesia %% transactional but it is not. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(#s { q = Q, +status(#s { q = {just, Q}, next_seq_id = NextSeqId, pending_ack_dict = PAD, busy = false}) -> @@ -582,16 +606,16 @@ status(#s { q = Q, %%---------------------------------------------------------------------------- %% Various internal helper functions. All functions are pure below -%% this point, and all S records are busy. +%% this point, and all Ss are busy and have non-nothing qs. %% ---------------------------------------------------------------------------- -spec internal_queue_out(fun ((m(), state()) -> T), state()) -> {empty, state()} | T. -internal_queue_out(F, S = #s { q = Q }) -> +internal_queue_out(F, S = #s { q = {just, Q} }) -> case queue:out(Q) of {empty, _} -> {empty, S}; - {{value, M}, Qa} -> F(M, S #s { q = Qa }) + {{value, M}, Qa} -> F(M, S #s { q = {just, Qa} }) end. -spec internal_fetch/3 :: (ack_required(), m(), s()) -> {fetch_result(), s()}. @@ -601,7 +625,7 @@ internal_fetch(AckRequired, seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, - S = #s { q = Q }) -> + S = #s { q = {just, Q} }) -> {Ack, S1} = case AckRequired of true -> @@ -618,12 +642,12 @@ internal_fetch(AckRequired, dropwhile_state(Pred, S) -> internal_queue_out( - fun (M = #m { props = Props }, Si = #s { q = Q }) -> + fun (M = #m { props = Props }, Si = #s { q = {just, Q} }) -> case Pred(Props) of true -> {_, Si1} = internal_fetch(false, M, Si), dropwhile_state(Pred, Si1); - false -> {ok, Si #s {q = queue:in_r(M, Q) }} + false -> {ok, Si #s {q = {just,queue:in_r(M, Q)} }} end end, S). @@ -681,10 +705,11 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> publish_state(Msg, Props, IsDelivered, - S = #s { q = Q, next_seq_id = SeqId }) -> + S = #s { q = {just, Q}, next_seq_id = SeqId }) -> S #s { - q = queue:in( - (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), + q = {just, + queue:in( + (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q)}, next_seq_id = SeqId + 1 }. -spec record_pending_ack_state(m(), s()) -> s(). @@ -693,12 +718,6 @@ record_pending_ack_state(M = #m { seq_id = SeqId }, S = #s { pending_ack_dict = PAD }) -> S #s { pending_ack_dict = dict:store(SeqId, M, PAD) }. -% -spec remove_acks_state(s()) -> s(). - -remove_acks_state(S = #s { pending_ack_dict = PAD }) -> - _ = dict:fold(fun (_, M, Acc) -> [m_guid(M) | Acc] end, [], PAD), - S #s { pending_ack_dict = dict:new() }. - -spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), [rabbit_guid:guid()], s()) -> -- cgit v1.2.1 From 49b4f45d9fb1645de7883753cf23e2f76d6ead44 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 19 Jan 2011 17:57:36 -0800 Subject: More scaffolding: Preparing for first Mnesia reads and writes. All queues are now persistent but recovery is incomplete. --- src/rabbit_mnesia_queue.erl | 133 +++++++++++++++++++++++++++++--------------- 1 file changed, 87 insertions(+), 46 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index c58231f3..f57b3688 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -198,10 +198,13 @@ init(QueueName, _IsDurable, _Recover) -> terminate(S = #s { busy = false }) -> rabbit_log:info("terminate(~p) ->", [S]), S1 = S #s { busy = true }, - {atomic, S2} = + {atomic, S3} = mnesia:transaction( - fun () -> S1 #s { pending_ack_dict = dict:new() } end), - Result = S2 #s { busy = false }, + fun () -> + RS = S1 #s { pending_ack_dict = dict:new() }, + RS + end), + Result = S3 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -221,13 +224,14 @@ terminate(S = #s { busy = false }) -> delete_and_terminate(S) -> rabbit_log:info("delete_and_terminate(~p) ->", [S]), S1 = S #s { busy = true }, - {atomic, S2} = + {atomic, S3} = mnesia:transaction( fun () -> - S1 #s { q = {just, queue:new()}, - pending_ack_dict = dict:new() } + RS = S1 #s { q = {just, queue:new()}, + pending_ack_dict = dict:new() }, + RS end), - Result = S2 #s { busy = false }, + Result = S3 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -242,10 +246,13 @@ delete_and_terminate(S) -> purge(S = #s { q = {just, Q}, busy = false }) -> rabbit_log:info("purge(~p) ->", [S #s { busy = true }]), S1 = S #s { busy = true }, - {atomic, {A, S2}} = + {atomic, {A, S3}} = mnesia:transaction( - fun() -> {queue:len(Q), S1 #s { q = {just, queue:new()} }} end), - Result = {A, S2 #s { busy = false }}, + fun () -> + RS = S1 #s { q = {just, queue:new()} }, + {queue:len(Q), RS} + end), + Result = {A, S3 #s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -266,9 +273,13 @@ publish(Msg, Props, S = #s { busy = false }) -> rabbit_log:info(" ~p,", [Props]), rabbit_log:info(" ~p) ->", [S]), S1 = S #s { busy = true }, - {atomic, S2} = - mnesia:transaction(fun () -> publish_state(Msg, Props, false, S1) end), - Result = S2 #s { busy = false }, + {atomic, S3} = + mnesia:transaction( + fun () -> + RS = publish_state(Msg, Props, false, S1), + RS + end), + Result = S3 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -306,10 +317,10 @@ publish_delivered(true, {atomic, {A, B}} = mnesia:transaction( fun () -> - {SeqId, - (record_pending_ack_state( + RS = (record_pending_ack_state( (m(Msg, SeqId, Props)) #m { is_delivered = true }, S1)) - #s { next_seq_id = SeqId + 1 }} + #s { next_seq_id = SeqId + 1 }, + {SeqId, RS} end), Result = {A, B #s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), @@ -328,9 +339,13 @@ publish_delivered(true, dropwhile(Pred, S = #s { busy = false }) -> rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), S1 = S #s { busy = true }, - {atomic, {_, S2}} = - mnesia:transaction(fun () -> dropwhile_state(Pred, S1) end), - Result = S2 #s { busy = false }, + {atomic, {_, S3}} = + mnesia:transaction( + fun () -> + RS = dropwhile_state(Pred, S1), + RS + end), + Result = S3 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -345,13 +360,16 @@ dropwhile(Pred, S = #s { busy = false }) -> fetch(AckRequired, S = #s { busy = false }) -> rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), S1 = S #s { busy = true }, - {atomic, {R, S2}} = + {atomic, {R, S3}} = mnesia:transaction( fun () -> - internal_queue_out( - fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, S1) + {DR, RS} = + internal_queue_out( + fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, + S1), + {DR, RS} end), - Result = {R, S2 #s { busy = false } }, + Result = {R, S3 #s { busy = false } }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -369,9 +387,13 @@ ack(SeqIds, S = #s { busy = false }) -> rabbit_log:info("~p,", [SeqIds]), rabbit_log:info(" ~p) ->", [S]), S1 = S #s { busy = true }, - {atomic, {Guids, S2}} = - mnesia:transaction(fun () -> internal_ack(SeqIds, S1) end), - Result = {Guids, S2 # s { busy = false }}, + {atomic, {Guids, S3}} = + mnesia:transaction( + fun () -> + {Guids, RS} = internal_ack(SeqIds, S1), + {Guids, RS} + end), + Result = {Guids, S3 # s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -392,13 +414,16 @@ ack(SeqIds, S = #s { busy = false }) -> tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), S1 = S #s { busy = true }, - {atomic, S2} = + {atomic, S3} = mnesia:transaction( fun () -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S1), - store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S1) + RS = store_tx(Txn, + Tx #tx { to_pub = [{Msg, Props} | Pubs] }, + S1), + RS end), - Result = S2 #s { busy = false }, + Result = S3 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -415,14 +440,18 @@ tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> tx_ack(Txn, SeqIds, S = #s { busy = false }) -> rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), S1 = S #s { busy = true }, - {atomic, S2} = + {atomic, S3} = mnesia:transaction( fun () -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S1), - store_tx( - Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S1) + RS = + store_tx(Txn, + Tx #tx { + to_ack = lists:append(SeqIds, SeqIds0) }, + S1), + RS end), - Result = S2 #s { busy = false }, + Result = S3 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -444,7 +473,8 @@ tx_rollback(Txn, S = #s { busy = false }) -> mnesia:transaction( fun () -> #tx { to_ack = SeqIds } = lookup_tx(Txn, S1), - {SeqIds, (erase_tx(Txn, S))} + RS = erase_tx(Txn, S), + {SeqIds, RS} end), Result = {A, B #s { busy = false }}, rabbit_log:info(" -> ~p", [Result]), @@ -474,8 +504,9 @@ tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> mnesia:transaction( fun () -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S1), - {SeqIds, - tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S1))} + RS = + tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S1)), + {SeqIds, RS} end), F(), Result = {A, B #s { busy = false }}, @@ -496,17 +527,19 @@ tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> requeue(SeqIds, PropsF, S = #s { busy = false }) -> rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), S1 = S #s { busy = true }, - {atomic, {_, S2}} = + {atomic, S3} = mnesia:transaction( fun () -> - internal_ack3( - fun (#m { msg = Msg, props = Props }, Si) -> - publish_state(Msg, PropsF(Props), true, Si) - end, - SeqIds, - S1) + {_, RS} = + internal_ack3( + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) + end, + SeqIds, + S1), + RS end), - Result = S2 #s { busy = false }, + Result = S3 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -518,7 +551,11 @@ requeue(SeqIds, PropsF, S = #s { busy = false }) -> len(#s { q = {just, Q}, busy = false }) -> rabbit_log:info("len(~p) ->", [Q]), - {atomic, Result} = mnesia:transaction(fun () -> queue:len(Q) end), + {atomic, Result} = + mnesia:transaction( + fun () -> + queue:len(Q) + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -530,7 +567,11 @@ len(#s { q = {just, Q}, busy = false }) -> is_empty(#s { q = {just, Q}, busy = false }) -> rabbit_log:info("is_empty(~p)", [Q]), - {atomic, Result} = mnesia:transaction(fun () -> queue:is_empty(Q) end), + {atomic, Result} = + mnesia:transaction( + fun () -> + queue:is_empty(Q) + end), rabbit_log:info(" -> ~p", [Result]), Result. -- cgit v1.2.1 From ad578a5812339d6db6eed66ab60f23440e2620f8 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 20 Jan 2011 15:12:13 +0000 Subject: Allow VQ to cope with acks (and requeues) of messages which have already been acked (or requeued) without exploding --- src/rabbit_variable_queue.erl | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index f39bc964..b0b8a6eb 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -1364,12 +1364,17 @@ ack(MsgStoreFun, Fun, AckTags, State) -> lists:foldl( fun (SeqId, {Acc, State2 = #vqstate { pending_ack = PA, ram_ack_index = RAI }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, State2 #vqstate { - pending_ack = dict:erase(SeqId, PA), - ram_ack_index = - gb_trees:delete_any(SeqId, RAI)})} + case dict:find(SeqId, PA) of + error -> + {Acc, State2}; + {ok, AckEntry} -> + {accumulate_ack(SeqId, AckEntry, Acc), + Fun(AckEntry, + State2 #vqstate { + pending_ack = dict:erase(SeqId, PA), + ram_ack_index = + gb_trees:delete_any(SeqId, RAI)})} + end end, {accumulate_ack_init(), State}, AckTags), IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), [ok = MsgStoreFun(MSCState, IsPersistent, Guids) -- cgit v1.2.1 From 58dc247470a223b643982e17f662eb80e4c00b18 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 20 Jan 2011 15:04:54 -0800 Subject: Uses Mnesia to save state (in one swell foop) --- src/rabbit_mnesia_queue.erl | 176 ++++++++++++++++++++++++-------------------- 1 file changed, 97 insertions(+), 79 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index f57b3688..db6d91ef 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -48,8 +48,7 @@ %%---------------------------------------------------------------------------- %% This module wraps msgs into M records for internal use, including -%% additional information. Pending acks are also recorded in memory as -%% Ms. +%% additional information. Pending acks are also recorded as Ms. %% %% All queues are durable in this version, and all msgs are treated as %% persistent. (This will no doubt break some tests for non-durable @@ -61,8 +60,8 @@ -behaviour(rabbit_backing_queue). -record(s, % The in-RAM queue state - { mnesia_table_name, % An atom holding the Mnesia table name - q, % The in-Mnesia queue of Ms + { mnesia_table, % An atom holding the Mnesia table name + q, % The currently-in-RAM queue of Ms next_seq_id, % The next seq_id to use to build an M pending_ack_dict, % The Mnesia seq_id->M map, pending ack txn_dict, % In-progress txn->tx map @@ -80,6 +79,11 @@ { to_pub, to_ack }). +-record(q_record, % Temporary whole-queue record in Mnesia + { key, % The key: the atom 'q' + val % The value: the M queue + }). + -include("rabbit.hrl"). %%---------------------------------------------------------------------------- @@ -93,7 +97,10 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(s() :: #s { mnesia_table_name :: atom(), +-type(q_record() :: #q_record { key :: q, + val :: queue() }). + +-type(s() :: #s { mnesia_table :: atom(), q :: maybe(queue()), next_seq_id :: seq_id(), pending_ack_dict :: dict(), @@ -124,7 +131,7 @@ %% started in the near future. This lets us perform early checking %% necessary for the consistency of those queues or initialise other %% shared resources. This function creates an Mnesia transaction to -%% run in, and must not be called from inside another Mnesia +%% run in, and therefore may not be called from inside another Mnesia %% transaction. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). @@ -133,28 +140,23 @@ %% Public API %%---------------------------------------------------------------------------- -start(_DurableQueues) -> - rabbit_log:info("start(_) ->"), - rabbit_log:info(" -> ok"), - ok. +start(_DurableQueues) -> ok. %%---------------------------------------------------------------------------- %% stop/0 tears down all state/resources upon shutdown. It might not %% be called. This function creates an Mnesia transaction to run in, -%% and must not be called from inside another Mnesia transaction. +%% and therefore may not be called from inside another Mnesia +%% transaction. %% %% -spec(stop/0 :: () -> 'ok'). -stop() -> - rabbit_log:info("stop(_) ->"), - rabbit_log:info(" -> ok"), - ok. +stop() -> ok. %%---------------------------------------------------------------------------- %% init/3 creates one backing queue, returning its state. Names are %% local to the vhost, and must be unique. This function creates -%% Mnesia transactions to run in, and must not be called from inside -%% another Mnesia transaction. +%% Mnesia transactions to run in, and therefore may not be called from +%% inside another Mnesia transaction. %% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) @@ -162,23 +164,23 @@ stop() -> init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~p, _, _) ->", [QueueName]), - MnesiaTableName = mnesia_table_name(QueueName), + MnesiaTable = mnesia_table(QueueName), %% It's unfortunate that tables cannot be created or deleted %% within an Mnesia transaction! - Attributes = record_info(fields, s), + Attributes = record_info(fields, q_record), case mnesia:create_table( - MnesiaTableName, [{record_name, s}, {attributes, Attributes}]) + MnesiaTable, [{record_name, 'q_record'}, {attributes, Attributes}]) of {atomic, ok} -> ok; - {aborted, {already_exists, MnesiaTableName}} -> - s = mnesia:table_info(MnesiaTableName, record_name), - Attributes = mnesia:table_info(MnesiaTableName, attributes), + {aborted, {already_exists, MnesiaTable}} -> + 'q_record' = mnesia:table_info(MnesiaTable, record_name), + Attributes = mnesia:table_info(MnesiaTable, attributes), ok end, {atomic, Result} = mnesia:transaction( fun () -> - #s { mnesia_table_name = MnesiaTableName, + #s { mnesia_table = MnesiaTable, q = {just, queue:new()}, next_seq_id = 0, pending_ack_dict = dict:new(), @@ -191,7 +193,7 @@ init(QueueName, _IsDurable, _Recover) -> %%---------------------------------------------------------------------------- %% terminate/1 is called on queue shutdown when the queue isn't being %% deleted. This function creates an Mnesia transaction to run in, and -%% must not be called from inside another Mnesia transaction. +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(terminate/1 :: (state()) -> state()). @@ -202,6 +204,7 @@ terminate(S = #s { busy = false }) -> mnesia:transaction( fun () -> RS = S1 #s { pending_ack_dict = dict:new() }, + _ = transactional_write_state(RS), RS end), Result = S3 #s { busy = false }, @@ -213,8 +216,8 @@ terminate(S = #s { busy = false }) -> %% needs to delete all its content. The only difference between purge %% and delete is that delete also needs to delete everything that's %% been delivered and not ack'd. This function creates an Mnesia -%% transaction to run in, and must not be called from inside another -%% Mnesia transaction. +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). @@ -229,6 +232,7 @@ delete_and_terminate(S) -> fun () -> RS = S1 #s { q = {just, queue:new()}, pending_ack_dict = dict:new() }, + _ = transactional_write_state(RS), RS end), Result = S3 #s { busy = false }, @@ -238,8 +242,8 @@ delete_and_terminate(S) -> %%---------------------------------------------------------------------------- %% purge/1 removes all msgs in the queue, but not msgs that have been %% fetched and are pending acks. This function creates an Mnesia -%% transaction to run in, and must not be called from inside another -%% Mnesia transaction. +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). @@ -250,6 +254,7 @@ purge(S = #s { q = {just, Q}, busy = false }) -> mnesia:transaction( fun () -> RS = S1 #s { q = {just, queue:new()} }, + _ = transactional_write_state(RS), {queue:len(Q), RS} end), Result = {A, S3 #s { busy = false }}, @@ -258,8 +263,9 @@ purge(S = #s { q = {just, Q}, busy = false }) -> %%---------------------------------------------------------------------------- %% publish/3 publishes a msg. This function creates an Mnesia -%% transaction to run in, and must not be called from inside another -%% Mnesia transaction. All msgs are silently treated as persistent. +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. All msgs are silently treated as +%% persistent. %% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), @@ -277,6 +283,7 @@ publish(Msg, Props, S = #s { busy = false }) -> mnesia:transaction( fun () -> RS = publish_state(Msg, Props, false, S1), + _ = transactional_write_state(RS), RS end), Result = S3 #s { busy = false }, @@ -288,8 +295,8 @@ publish(Msg, Props, S = #s { busy = false }) -> %% passed straight out to a client. The queue will be empty for these %% calls (saving the round trip through the backing queue). All msgs %% are silently treated as non-persistent. This function creates an -%% Mnesia transaction to run in, and must not be called from inside -%% another Mnesia transaction. All msgs are silently treated as +%% Mnesia transaction to run in, and therefore may not be called from +%% inside another Mnesia transaction. All msgs are silently treated as %% persistent. %% %% -spec(publish_delivered/4 :: @@ -320,6 +327,7 @@ publish_delivered(true, RS = (record_pending_ack_state( (m(Msg, SeqId, Props)) #m { is_delivered = true }, S1)) #s { next_seq_id = SeqId + 1 }, + _ = transactional_write_state(RS), {SeqId, RS} end), Result = {A, B #s { busy = false }}, @@ -329,8 +337,8 @@ publish_delivered(true, %%---------------------------------------------------------------------------- %% dropwhile/2 drops msgs from the head of the queue while the %% supplied predicate returns true. This function creates an Mnesia -%% transaction to run in, and must not be called from inside another -%% Mnesia transaction. +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -342,8 +350,10 @@ dropwhile(Pred, S = #s { busy = false }) -> {atomic, {_, S3}} = mnesia:transaction( fun () -> - RS = dropwhile_state(Pred, S1), - RS + {Atom, RS} = + internal_dropwhile(Pred, S1), + _ = transactional_write_state(RS), + {Atom, RS} end), Result = S3 #s { busy = false }, rabbit_log:info(" -> ~p", [Result]), @@ -351,8 +361,8 @@ dropwhile(Pred, S = #s { busy = false }) -> %%---------------------------------------------------------------------------- %% fetch/2 produces the next msg. This function creates an Mnesia -%% transaction to run in, and must not be called from inside another -%% Mnesia transaction. +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. %% %% -spec(fetch/2 :: (ack_required(), state()) -> %% {ok | fetch_result(), state()}). @@ -367,6 +377,7 @@ fetch(AckRequired, S = #s { busy = false }) -> internal_queue_out( fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, S1), + _ = transactional_write_state(RS), {DR, RS} end), Result = {R, S3 #s { busy = false } }, @@ -376,7 +387,7 @@ fetch(AckRequired, S = #s { busy = false }) -> %%---------------------------------------------------------------------------- %% ack/2 acknowledges msgs names by SeqIds. Maps SeqIds to guids upon %% return. This function creates an Mnesia transaction to run in, and -%% must not be called from inside another Mnesia transaction. +%% therefore may not be called from inside another Mnesia transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -391,6 +402,7 @@ ack(SeqIds, S = #s { busy = false }) -> mnesia:transaction( fun () -> {Guids, RS} = internal_ack(SeqIds, S1), + _ = transactional_write_state(RS), {Guids, RS} end), Result = {Guids, S3 # s { busy = false }}, @@ -401,8 +413,8 @@ ack(SeqIds, S = #s { busy = false }) -> %% tx_publish/4 is a publish, but in the context of an AMQP %% transaction. It stores the msg and its properties in the to_pub %% field of the txn, waiting to be committed. This function creates an -%% Mnesia transaction to run in, and must not be called from inside -%% another Mnesia transaction. +%% Mnesia transaction to run in, and therefore may not be called from +%% inside another Mnesia transaction. %% %% -spec(tx_publish/4 :: %% (rabbit_types:txn(), @@ -421,6 +433,7 @@ tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> RS = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S1), + _ = transactional_write_state(RS), RS end), Result = S3 #s { busy = false }, @@ -431,7 +444,8 @@ tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> %% tx_ack/3 acks, but in the context of an AMQP transaction. It stores %% the seq_id in the acks field of the txn, waiting to be %% committed. This function creates an Mnesia transaction to run in, -%% and must not be called from inside another Mnesia transaction. +%% and therefore may not be called from inside another Mnesia +%% transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -444,11 +458,11 @@ tx_ack(Txn, SeqIds, S = #s { busy = false }) -> mnesia:transaction( fun () -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S1), - RS = - store_tx(Txn, - Tx #tx { - to_ack = lists:append(SeqIds, SeqIds0) }, - S1), + RS = store_tx(Txn, + Tx #tx { + to_ack = lists:append(SeqIds, SeqIds0) }, + S1), + _ = transactional_write_state(RS), RS end), Result = S3 #s { busy = false }, @@ -459,7 +473,7 @@ tx_ack(Txn, SeqIds, S = #s { busy = false }) -> %% tx_rollback/2 undoes anything that has been done in the context of %% the specified AMQP transaction. It returns the state with to_pub %% and to_ack erased. This function creates an Mnesia transaction to -%% run in, and must not be called from inside another Mnesia +%% run in, and therefore may not be called from inside another Mnesia %% transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. @@ -474,6 +488,7 @@ tx_rollback(Txn, S = #s { busy = false }) -> fun () -> #tx { to_ack = SeqIds } = lookup_tx(Txn, S1), RS = erase_tx(Txn, S), + _ = transactional_write_state(RS), {SeqIds, RS} end), Result = {A, B #s { busy = false }}, @@ -484,8 +499,8 @@ tx_rollback(Txn, S = #s { busy = false }) -> %% tx_commit/4 commits an AMQP transaction. The F passed in must be %% called once the msgs have really been commited. This CPS permits %% the possibility of commit coalescing. This function creates an -%% Mnesia transaction to run in, and must not be called from inside -%% another Mnesia transaction. +%% Mnesia transaction to run in, and therefore may not be called from +%% inside another Mnesia transaction. %% %% The following spec is wrong, blank_acks cannot be returned. %% @@ -506,6 +521,7 @@ tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S1), RS = tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S1)), + _ = transactional_write_state(RS), {SeqIds, RS} end), F(), @@ -516,8 +532,8 @@ tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> %%---------------------------------------------------------------------------- %% requeue/3 reinserts msgs into the queue that have already been %% delivered and were pending acknowledgement. This function creates -%% an Mnesia transaction to run in, and must not be called from inside -%% another Mnesia transaction. +%% an Mnesia transaction to run in, and therefore may not be called +%% from inside another Mnesia transaction. %% %% The following spec is wrong, as blank_acks cannot be passed back in. %% @@ -537,6 +553,7 @@ requeue(SeqIds, PropsF, S = #s { busy = false }) -> end, SeqIds, S1), + _ = transactional_write_state(RS), RS end), Result = S3 #s { busy = false }, @@ -545,7 +562,7 @@ requeue(SeqIds, PropsF, S = #s { busy = false }) -> %%---------------------------------------------------------------------------- %% len/1 returns the queue length. It should be Mnesia transactional -%% but it is not. +%% but it is not yet. %% %% -spec(len/1 :: (state()) -> non_neg_integer()). @@ -561,7 +578,7 @@ len(#s { q = {just, Q}, busy = false }) -> %%---------------------------------------------------------------------------- %% is_empty/1 returns true if the queue is empty, and false -%% otherwise. It should be Mnesia transactional but it is not. +%% otherwise. It should be Mnesia transactional but it is not yet. %% %% -spec(is_empty/1 :: (state()) -> boolean()). @@ -578,9 +595,7 @@ is_empty(#s { q = {just, Q}, busy = false }) -> %%---------------------------------------------------------------------------- %% set_ram_duration_target states that the target is to have no more %% msgs in RAM than indicated by the duration and the current queue -%% rates. It is ignored in this implementation. This function creates -%% an Mnesia transaction to run in, and must not be called from inside -%% another Mnesia transaction. +%% rates. It is ignored in this implementation. %% %% -spec(set_ram_duration_target/2 :: %% (('undefined' | 'infinity' | number()), state()) @@ -592,9 +607,7 @@ set_ram_duration_target(_, S = #s { busy = false }) -> S. %% ram_duration/1 optionally recalculates the duration internally %% (likely to be just update your internal rates), and report how many %% seconds the msgs in RAM represent given the current rates of the -%% queue. It is a dummy in this implementation. This function creates -%% an Mnesia transaction to run in, and must not be called from inside -%% another Mnesia transaction. +%% queue. It is a dummy in this implementation. %% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). @@ -604,9 +617,7 @@ ram_duration(S = #s { busy = false }) -> {0, S}. %% needs_idle_timeout/1 returns true if idle_timeout should be called %% as soon as the queue process can manage (either on an empty %% mailbox, or when a timer fires), and false otherwise. It always -%% returns false in this implementation. This function creates an -%% Mnesia transaction to run in, and must not be called from inside -%% another Mnesia transaction. +%% returns false in this implementation. %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). @@ -614,9 +625,7 @@ needs_idle_timeout(#s { busy = false }) -> false. %%---------------------------------------------------------------------------- %% idle_timeout/1 is called (eventually) after needs_idle_timeout -%% returns true. It is a dummy in this implementation. This function -%% creates an Mnesia transaction to run in, and must not be called -%% from inside another Mnesia transaction. +%% returns true. It is a dummy in this implementation. %% %% -spec(idle_timeout/1 :: (state()) -> state()). @@ -624,9 +633,7 @@ idle_timeout(S = #s { busy = false }) -> S. %%---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue -%% hibernates. It is a dummy in this implementation. This function -%% creates an Mnesia transaction to run in, and must not be called -%% from inside another Mnesia transaction. +%% hibernates. It is a dummy in this implementation. %% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). @@ -646,12 +653,23 @@ status(#s { q = {just, Q}, [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, dict:size(PAD)}]. %%---------------------------------------------------------------------------- -%% Various internal helper functions. All functions are pure below -%% this point, and all Ss are busy and have non-nothing qs. +%% Internal helper functions for inside transactions. All Ss are busy +%% and have non-nothing qs. +%% ---------------------------------------------------------------------------- + +-spec transactional_write_state(s()) -> s(). + +transactional_write_state(S = #s { + mnesia_table = MnesiaTable, q = {just, RQ} }) -> + ok = mnesia:write(MnesiaTable, #q_record { key = q, val = RQ }, 'write'), + S. + +%%---------------------------------------------------------------------------- +%% Internal pure helper functions. All Ss are busy and have +%% non-nothing qs. %% ---------------------------------------------------------------------------- --spec internal_queue_out(fun ((m(), state()) -> T), state()) -> - {empty, state()} | T. +-spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. internal_queue_out(F, S = #s { q = {just, Q} }) -> case queue:out(Q) of @@ -677,17 +695,17 @@ internal_fetch(AckRequired, end, {{Msg, IsDelivered, Ack, queue:len(Q)}, S1}. --spec(dropwhile_state/2 :: +-spec(internal_dropwhile/2 :: (fun ((rabbit_types:message_properties()) -> boolean()), s()) -> {empty | ok, s()}). -dropwhile_state(Pred, S) -> +internal_dropwhile(Pred, S) -> internal_queue_out( fun (M = #m { props = Props }, Si = #s { q = {just, Q} }) -> case Pred(Props) of true -> {_, Si1} = internal_fetch(false, M, Si), - dropwhile_state(Pred, Si1); + internal_dropwhile(Pred, Si1); false -> {ok, Si #s {q = {just,queue:in_r(M, Q)} }} end end, @@ -785,8 +803,8 @@ m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. %% TODO: Import correct argument type. --spec mnesia_table_name(_) -> atom(). +-spec mnesia_table(_) -> atom(). -mnesia_table_name(QueueName) -> +mnesia_table(QueueName) -> list_to_atom(lists:flatten(io_lib:format("~p", [QueueName]))). -- cgit v1.2.1 From c6966df44224fd40a12762d7af115897df7cc2d5 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 20 Jan 2011 15:39:28 -0800 Subject: Scaffolding for Mnesia reads. --- src/rabbit_mnesia_queue.erl | 78 +++++++++++++++++++++++++++++---------------- 1 file changed, 50 insertions(+), 28 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index db6d91ef..1e5be3f5 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -199,10 +199,11 @@ init(QueueName, _IsDurable, _Recover) -> terminate(S = #s { busy = false }) -> rabbit_log:info("terminate(~p) ->", [S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), RS = S1 #s { pending_ack_dict = dict:new() }, _ = transactional_write_state(RS), RS @@ -226,10 +227,11 @@ terminate(S = #s { busy = false }) -> delete_and_terminate(S) -> rabbit_log:info("delete_and_terminate(~p) ->", [S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), RS = S1 #s { q = {just, queue:new()}, pending_ack_dict = dict:new() }, _ = transactional_write_state(RS), @@ -247,12 +249,13 @@ delete_and_terminate(S) -> %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(S = #s { q = {just, Q}, busy = false }) -> +purge(S = #s { busy = false }) -> rabbit_log:info("purge(~p) ->", [S #s { busy = true }]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, {A, S3}} = mnesia:transaction( fun () -> + S1 = #s { q = {just, Q} } = transactional_read_state(S0), RS = S1 #s { q = {just, queue:new()} }, _ = transactional_write_state(RS), {queue:len(Q), RS} @@ -278,10 +281,11 @@ publish(Msg, Props, S = #s { busy = false }) -> rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), rabbit_log:info(" ~p) ->", [S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), RS = publish_state(Msg, Props, false, S1), _ = transactional_write_state(RS), RS @@ -312,18 +316,16 @@ publish_delivered(false, _, _, S = #s { busy = false }) -> Result = {blank_ack, S}, rabbit_log:info(" -> ~p", [Result]), Result; -publish_delivered(true, - Msg, - Props, - S = #s { next_seq_id = SeqId, busy = false }) -> +publish_delivered(true, Msg, Props, S = #s { busy = false }) -> rabbit_log:info("publish_delivered(true, "), rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), rabbit_log:info(" ~p) ->", [S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, {A, B}} = mnesia:transaction( fun () -> + S1 = #s { next_seq_id = SeqId } = transactional_read_state(S0), RS = (record_pending_ack_state( (m(Msg, SeqId, Props)) #m { is_delivered = true }, S1)) #s { next_seq_id = SeqId + 1 }, @@ -346,10 +348,11 @@ publish_delivered(true, dropwhile(Pred, S = #s { busy = false }) -> rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, {_, S3}} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), {Atom, RS} = internal_dropwhile(Pred, S1), _ = transactional_write_state(RS), @@ -369,10 +372,11 @@ dropwhile(Pred, S = #s { busy = false }) -> fetch(AckRequired, S = #s { busy = false }) -> rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, {R, S3}} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), {DR, RS} = internal_queue_out( fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, @@ -397,10 +401,11 @@ ack(SeqIds, S = #s { busy = false }) -> rabbit_log:info("ack("), rabbit_log:info("~p,", [SeqIds]), rabbit_log:info(" ~p) ->", [S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, {Guids, S3}} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), {Guids, RS} = internal_ack(SeqIds, S1), _ = transactional_write_state(RS), {Guids, RS} @@ -425,10 +430,11 @@ ack(SeqIds, S = #s { busy = false }) -> tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S1), RS = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, @@ -453,10 +459,11 @@ tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> tx_ack(Txn, SeqIds, S = #s { busy = false }) -> rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S1), RS = store_tx(Txn, Tx #tx { @@ -482,10 +489,11 @@ tx_ack(Txn, SeqIds, S = #s { busy = false }) -> tx_rollback(Txn, S = #s { busy = false }) -> rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, {A, B}} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), #tx { to_ack = SeqIds } = lookup_tx(Txn, S1), RS = erase_tx(Txn, S), _ = transactional_write_state(RS), @@ -514,10 +522,11 @@ tx_rollback(Txn, S = #s { busy = false }) -> tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> rabbit_log:info( "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, {A, B}} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S1), RS = tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S1)), @@ -542,10 +551,11 @@ tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> requeue(SeqIds, PropsF, S = #s { busy = false }) -> rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), - S1 = S #s { busy = true }, + S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> + S1 = transactional_read_state(S0), {_, RS} = internal_ack3( fun (#m { msg = Msg, props = Props }, Si) -> @@ -561,16 +571,19 @@ requeue(SeqIds, PropsF, S = #s { busy = false }) -> Result. %%---------------------------------------------------------------------------- -%% len/1 returns the queue length. It should be Mnesia transactional -%% but it is not yet. +%% len/1 returns the queue length. This function creates an Mnesia +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(#s { q = {just, Q}, busy = false }) -> - rabbit_log:info("len(~p) ->", [Q]), +len(S = #s { busy = false }) -> + rabbit_log:info("len(~p) ->", [S]), + S0 = S #s { busy = true }, {atomic, Result} = mnesia:transaction( fun () -> + #s { q = {just, Q} } = transactional_read_state(S0), queue:len(Q) end), rabbit_log:info(" -> ~p", [Result]), @@ -578,15 +591,19 @@ len(#s { q = {just, Q}, busy = false }) -> %%---------------------------------------------------------------------------- %% is_empty/1 returns true if the queue is empty, and false -%% otherwise. It should be Mnesia transactional but it is not yet. +%% otherwise. This function creates an Mnesia transaction to run in, +%% and therefore may not be called from inside another Mnesia +%% transaction. %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(#s { q = {just, Q}, busy = false }) -> - rabbit_log:info("is_empty(~p)", [Q]), +is_empty(S = #s { busy = false }) -> + rabbit_log:info("is_empty(~p)", [S]), + S0 = S #s { busy = true }, {atomic, Result} = mnesia:transaction( fun () -> + #s { q = {just, Q} } = transactional_read_state(S0), queue:is_empty(Q) end), rabbit_log:info(" -> ~p", [Result]), @@ -653,10 +670,16 @@ status(#s { q = {just, Q}, [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, dict:size(PAD)}]. %%---------------------------------------------------------------------------- -%% Internal helper functions for inside transactions. All Ss are busy +%% Monadic helper functions for inside transactions. All Ss are busy %% and have non-nothing qs. %% ---------------------------------------------------------------------------- +-spec transactional_read_state(s()) -> s(). + +transactional_read_state(S = #s { + mnesia_table = MnesiaTable, q = {just, Q} }) -> + S. + -spec transactional_write_state(s()) -> s(). transactional_write_state(S = #s { @@ -665,8 +688,7 @@ transactional_write_state(S = #s { S. %%---------------------------------------------------------------------------- -%% Internal pure helper functions. All Ss are busy and have -%% non-nothing qs. +%% Pure helper functions. All Ss are busy and have non-nothing qs. %% ---------------------------------------------------------------------------- -spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. -- cgit v1.2.1 From 8308e9e3080073c7a8519991e79441a5fcaf9b5c Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 20 Jan 2011 16:35:03 -0800 Subject: More scaffolding. Mnesia reads and writes now work, but messages are stored in a single huge blob. --- src/rabbit_mnesia_queue.erl | 52 ++++++++++++++++++++++++++++++--------------- 1 file changed, 35 insertions(+), 17 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 1e5be3f5..efb502c3 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -180,12 +180,14 @@ init(QueueName, _IsDurable, _Recover) -> {atomic, Result} = mnesia:transaction( fun () -> - #s { mnesia_table = MnesiaTable, - q = {just, queue:new()}, - next_seq_id = 0, - pending_ack_dict = dict:new(), - txn_dict = dict:new(), - busy = false} + RS = #s { mnesia_table = MnesiaTable, + q = {just, queue:new()}, + next_seq_id = 0, + pending_ack_dict = dict:new(), + txn_dict = dict:new(), + busy = false}, + _ = transactional_write_state(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -658,16 +660,28 @@ handle_pre_hibernate(S = #s { busy = false }) -> S. %%---------------------------------------------------------------------------- %% status/1 exists for debugging and operational purposes, to be able -%% to expose state via rabbitmqctl. This function should be Mnesia -%% transactional but it is not. +%% to expose state via rabbitmqctl. This function creates an Mnesia +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(#s { q = {just, Q}, - next_seq_id = NextSeqId, - pending_ack_dict = PAD, - busy = false}) -> - [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, dict:size(PAD)}]. +status(S = #s { busy = false }) -> + rabbit_log:info("status(~p)", [S]), + S0 = S #s { busy = true }, + {atomic, Result} = + mnesia:transaction( + fun () -> + #s { q = {just, Q}, + next_seq_id = NextSeqId, + pending_ack_dict = PAD} = + transactional_read_state(S0), + [{len, queue:len(Q)}, + {next_seq_id, NextSeqId}, + {acks, dict:size(PAD)}] + end), + rabbit_log:info(" -> ~p", [Result]), + Result. %%---------------------------------------------------------------------------- %% Monadic helper functions for inside transactions. All Ss are busy @@ -676,15 +690,19 @@ status(#s { q = {just, Q}, -spec transactional_read_state(s()) -> s(). -transactional_read_state(S = #s { - mnesia_table = MnesiaTable, q = {just, Q} }) -> - S. +transactional_read_state(S = #s { mnesia_table = MnesiaTable }) -> + rabbit_log:info("About to read from Mnesia"), + Result = mnesia:read(MnesiaTable, 'q', 'read'), + rabbit_log:info("Read from Mnesia:"), + rabbit_log:info(" ~p", [Result]), + [#q_record { key = 'q', val = Q }] = Result, + S #s { q = {just, Q} }. -spec transactional_write_state(s()) -> s(). transactional_write_state(S = #s { mnesia_table = MnesiaTable, q = {just, RQ} }) -> - ok = mnesia:write(MnesiaTable, #q_record { key = q, val = RQ }, 'write'), + ok = mnesia:write(MnesiaTable, #q_record { key = 'q', val = RQ }, 'write'), S. %%---------------------------------------------------------------------------- -- cgit v1.2.1 From 6cd466e88a85633f15176a076127acb223c86190 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 20 Jan 2011 18:38:00 -0800 Subject: Successfully reads and writes in big blobs. --- src/rabbit_mnesia_queue.erl | 229 +++++++++++++++++++++----------------------- 1 file changed, 111 insertions(+), 118 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index efb502c3..9a461f22 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -61,7 +61,7 @@ -record(s, % The in-RAM queue state { mnesia_table, % An atom holding the Mnesia table name - q, % The currently-in-RAM queue of Ms + q, % The M queue next_seq_id, % The next seq_id to use to build an M pending_ack_dict, % The Mnesia seq_id->M map, pending ack txn_dict, % In-progress txn->tx map @@ -79,9 +79,11 @@ { to_pub, to_ack }). --record(q_record, % Temporary whole-queue record in Mnesia - { key, % The key: the atom 'q' - val % The value: the M queue +-record(s_record, % Temporary whole-queue record in Mnesia + { key, % The key: the atom 's' + q, % The M queue + next_seq_id, % The next seq_id to use to build an M + pending_ack_dict % The Mnesia seq_id->M map, pending ack }). -include("rabbit.hrl"). @@ -97,9 +99,6 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(q_record() :: #q_record { key :: q, - val :: queue() }). - -type(s() :: #s { mnesia_table :: atom(), q :: maybe(queue()), next_seq_id :: seq_id(), @@ -117,6 +116,11 @@ rabbit_types:message_properties()}], to_ack :: [seq_id()] }). +-type(s_record() :: #s_record { key :: s, + q :: queue(), + next_seq_id :: seq_id(), + pending_ack_dict :: dict() }). + -include("rabbit_backing_queue_spec.hrl"). %% -endif. @@ -167,13 +171,13 @@ init(QueueName, _IsDurable, _Recover) -> MnesiaTable = mnesia_table(QueueName), %% It's unfortunate that tables cannot be created or deleted %% within an Mnesia transaction! - Attributes = record_info(fields, q_record), + Attributes = record_info(fields, s_record), case mnesia:create_table( - MnesiaTable, [{record_name, 'q_record'}, {attributes, Attributes}]) + MnesiaTable, [{record_name, 's_record'}, {attributes, Attributes}]) of {atomic, ok} -> ok; {aborted, {already_exists, MnesiaTable}} -> - 'q_record' = mnesia:table_info(MnesiaTable, record_name), + 's_record' = mnesia:table_info(MnesiaTable, record_name), Attributes = mnesia:table_info(MnesiaTable, attributes), ok end, @@ -181,13 +185,12 @@ init(QueueName, _IsDurable, _Recover) -> mnesia:transaction( fun () -> RS = #s { mnesia_table = MnesiaTable, - q = {just, queue:new()}, - next_seq_id = 0, - pending_ack_dict = dict:new(), - txn_dict = dict:new(), - busy = false}, - _ = transactional_write_state(RS), - RS + q = {just, queue:new()}, + next_seq_id = 0, + pending_ack_dict = dict:new(), + txn_dict = dict:new(), + busy = true }, + transactional_write_state(RS) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -198,19 +201,16 @@ init(QueueName, _IsDurable, _Recover) -> %% therefore may not be called from inside another Mnesia transaction. %% %% -spec(terminate/1 :: (state()) -> state()). - -terminate(S = #s { busy = false }) -> +terminate(S) -> rabbit_log:info("terminate(~p) ->", [S]), - S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), RS = S1 #s { pending_ack_dict = dict:new() }, - _ = transactional_write_state(RS), - RS + transactional_write_state(RS) end), - Result = S3 #s { busy = false }, + Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -229,17 +229,15 @@ terminate(S = #s { busy = false }) -> delete_and_terminate(S) -> rabbit_log:info("delete_and_terminate(~p) ->", [S]), - S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), RS = S1 #s { q = {just, queue:new()}, pending_ack_dict = dict:new() }, - _ = transactional_write_state(RS), - RS + transactional_write_state(RS) end), - Result = S3 #s { busy = false }, + Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -251,18 +249,16 @@ delete_and_terminate(S) -> %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(S = #s { busy = false }) -> - rabbit_log:info("purge(~p) ->", [S #s { busy = true }]), - S0 = S #s { busy = true }, +purge(S) -> + rabbit_log:info("purge(~p) ->", [S]), {atomic, {A, S3}} = mnesia:transaction( fun () -> - S1 = #s { q = {just, Q} } = transactional_read_state(S0), + S1 = #s { q = {just, Q} } = transactional_read_state(S), RS = S1 #s { q = {just, queue:new()} }, - _ = transactional_write_state(RS), - {queue:len(Q), RS} + {queue:len(Q), transactional_write_state(RS)} end), - Result = {A, S3 #s { busy = false }}, + Result = {A, S3}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -278,21 +274,19 @@ purge(S = #s { busy = false }) -> %% state()) %% -> state()). -publish(Msg, Props, S = #s { busy = false }) -> +publish(Msg, Props, S) -> rabbit_log:info("publish("), rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), rabbit_log:info(" ~p) ->", [S]), - S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), RS = publish_state(Msg, Props, false, S1), - _ = transactional_write_state(RS), - RS + transactional_write_state(RS) end), - Result = S3 #s { busy = false }, + Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -312,29 +306,27 @@ publish(Msg, Props, S = #s { busy = false }) -> %% state()) %% -> {ack(), state()}). -publish_delivered(false, _, _, S = #s { busy = false }) -> +publish_delivered(false, _, _, S) -> rabbit_log:info("publish_delivered(false, _, _,"), rabbit_log:info(" ~p) ->", [S]), Result = {blank_ack, S}, rabbit_log:info(" -> ~p", [Result]), Result; -publish_delivered(true, Msg, Props, S = #s { busy = false }) -> +publish_delivered(true, Msg, Props, S) -> rabbit_log:info("publish_delivered(true, "), rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), rabbit_log:info(" ~p) ->", [S]), - S0 = S #s { busy = true }, {atomic, {A, B}} = mnesia:transaction( fun () -> - S1 = #s { next_seq_id = SeqId } = transactional_read_state(S0), + S1 = #s { next_seq_id = SeqId } = transactional_read_state(S), RS = (record_pending_ack_state( (m(Msg, SeqId, Props)) #m { is_delivered = true }, S1)) #s { next_seq_id = SeqId + 1 }, - _ = transactional_write_state(RS), - {SeqId, RS} + {SeqId, transactional_write_state(RS)} end), - Result = {A, B #s { busy = false }}, + Result = {A, B}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -348,19 +340,17 @@ publish_delivered(true, Msg, Props, S = #s { busy = false }) -> %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) %% -> state()). -dropwhile(Pred, S = #s { busy = false }) -> +dropwhile(Pred, S) -> rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), - S0 = S #s { busy = true }, {atomic, {_, S3}} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), {Atom, RS} = internal_dropwhile(Pred, S1), - _ = transactional_write_state(RS), - {Atom, RS} + {Atom, transactional_write_state(RS)} end), - Result = S3 #s { busy = false }, + Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -372,21 +362,19 @@ dropwhile(Pred, S = #s { busy = false }) -> %% -spec(fetch/2 :: (ack_required(), state()) -> %% {ok | fetch_result(), state()}). -fetch(AckRequired, S = #s { busy = false }) -> +fetch(AckRequired, S) -> rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), - S0 = S #s { busy = true }, {atomic, {R, S3}} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), {DR, RS} = internal_queue_out( fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, S1), - _ = transactional_write_state(RS), - {DR, RS} + {DR, transactional_write_state(RS)} end), - Result = {R, S3 #s { busy = false } }, + Result = {R, S3 }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -399,20 +387,18 @@ fetch(AckRequired, S = #s { busy = false }) -> %% %% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). -ack(SeqIds, S = #s { busy = false }) -> +ack(SeqIds, S) -> rabbit_log:info("ack("), rabbit_log:info("~p,", [SeqIds]), rabbit_log:info(" ~p) ->", [S]), - S0 = S #s { busy = true }, {atomic, {Guids, S3}} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), {Guids, RS} = internal_ack(SeqIds, S1), - _ = transactional_write_state(RS), - {Guids, RS} + {Guids, transactional_write_state(RS)} end), - Result = {Guids, S3 # s { busy = false }}, + Result = {Guids, S3}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -430,21 +416,19 @@ ack(SeqIds, S = #s { busy = false }) -> %% state()) %% -> state()). -tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> +tx_publish(Txn, Msg, Props, S) -> rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), - S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S1), RS = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S1), - _ = transactional_write_state(RS), - RS + transactional_write_state(RS) end), - Result = S3 #s { busy = false }, + Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -459,22 +443,20 @@ tx_publish(Txn, Msg, Props, S = #s { busy = false }) -> %% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). -tx_ack(Txn, SeqIds, S = #s { busy = false }) -> +tx_ack(Txn, SeqIds, S) -> rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), - S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S1), RS = store_tx(Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S1), - _ = transactional_write_state(RS), - RS + transactional_write_state(RS) end), - Result = S3 #s { busy = false }, + Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -489,19 +471,17 @@ tx_ack(Txn, SeqIds, S = #s { busy = false }) -> %% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). -tx_rollback(Txn, S = #s { busy = false }) -> +tx_rollback(Txn, S) -> rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), - S0 = S #s { busy = true }, {atomic, {A, B}} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), #tx { to_ack = SeqIds } = lookup_tx(Txn, S1), RS = erase_tx(Txn, S), - _ = transactional_write_state(RS), - {SeqIds, RS} + {SeqIds, transactional_write_state(RS)} end), - Result = {A, B #s { busy = false }}, + Result = {A, B}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -521,22 +501,20 @@ tx_rollback(Txn, S = #s { busy = false }) -> %% state()) %% -> {[ack()], state()}). -tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> +tx_commit(Txn, F, PropsF, S) -> rabbit_log:info( "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), - S0 = S #s { busy = true }, {atomic, {A, B}} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S1), RS = tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S1)), - _ = transactional_write_state(RS), - {SeqIds, RS} + {SeqIds, transactional_write_state(RS)} end), F(), - Result = {A, B #s { busy = false }}, + Result = {A, B}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -551,13 +529,12 @@ tx_commit(Txn, F, PropsF, S = #s { busy = false }) -> %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). -requeue(SeqIds, PropsF, S = #s { busy = false }) -> +requeue(SeqIds, PropsF, S) -> rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), - S0 = S #s { busy = true }, {atomic, S3} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S0), + S1 = transactional_read_state(S), {_, RS} = internal_ack3( fun (#m { msg = Msg, props = Props }, Si) -> @@ -565,10 +542,9 @@ requeue(SeqIds, PropsF, S = #s { busy = false }) -> end, SeqIds, S1), - _ = transactional_write_state(RS), - RS + transactional_write_state(RS) end), - Result = S3 #s { busy = false }, + Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -579,13 +555,12 @@ requeue(SeqIds, PropsF, S = #s { busy = false }) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(S = #s { busy = false }) -> +len(S) -> rabbit_log:info("len(~p) ->", [S]), - S0 = S #s { busy = true }, {atomic, Result} = mnesia:transaction( fun () -> - #s { q = {just, Q} } = transactional_read_state(S0), + #s { q = {just, Q} } = transactional_read_state(S), queue:len(Q) end), rabbit_log:info(" -> ~p", [Result]), @@ -599,13 +574,12 @@ len(S = #s { busy = false }) -> %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(S = #s { busy = false }) -> +is_empty(S) -> rabbit_log:info("is_empty(~p)", [S]), - S0 = S #s { busy = true }, {atomic, Result} = mnesia:transaction( fun () -> - #s { q = {just, Q} } = transactional_read_state(S0), + #s { q = {just, Q} } = transactional_read_state(S), queue:is_empty(Q) end), rabbit_log:info(" -> ~p", [Result]), @@ -620,7 +594,7 @@ is_empty(S = #s { busy = false }) -> %% (('undefined' | 'infinity' | number()), state()) %% -> state()). -set_ram_duration_target(_, S = #s { busy = false }) -> S. +set_ram_duration_target(_, S) -> S. %%---------------------------------------------------------------------------- %% ram_duration/1 optionally recalculates the duration internally @@ -630,7 +604,7 @@ set_ram_duration_target(_, S = #s { busy = false }) -> S. %% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). -ram_duration(S = #s { busy = false }) -> {0, S}. +ram_duration(S) -> {0, S}. %%---------------------------------------------------------------------------- %% needs_idle_timeout/1 returns true if idle_timeout should be called @@ -640,7 +614,7 @@ ram_duration(S = #s { busy = false }) -> {0, S}. %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -needs_idle_timeout(#s { busy = false }) -> false. +needs_idle_timeout(_) -> false. %%---------------------------------------------------------------------------- %% idle_timeout/1 is called (eventually) after needs_idle_timeout @@ -648,7 +622,7 @@ needs_idle_timeout(#s { busy = false }) -> false. %% %% -spec(idle_timeout/1 :: (state()) -> state()). -idle_timeout(S = #s { busy = false }) -> S. +idle_timeout(S) -> S. %%---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue @@ -656,7 +630,7 @@ idle_timeout(S = #s { busy = false }) -> S. %% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -handle_pre_hibernate(S = #s { busy = false }) -> S. +handle_pre_hibernate(S) -> S. %%---------------------------------------------------------------------------- %% status/1 exists for debugging and operational purposes, to be able @@ -666,16 +640,15 @@ handle_pre_hibernate(S = #s { busy = false }) -> S. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(S = #s { busy = false }) -> +status(S) -> rabbit_log:info("status(~p)", [S]), - S0 = S #s { busy = true }, {atomic, Result} = mnesia:transaction( fun () -> #s { q = {just, Q}, next_seq_id = NextSeqId, pending_ack_dict = PAD} = - transactional_read_state(S0), + transactional_read_state(S), [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, dict:size(PAD)}] @@ -690,20 +663,40 @@ status(S = #s { busy = false }) -> -spec transactional_read_state(s()) -> s(). -transactional_read_state(S = #s { mnesia_table = MnesiaTable }) -> +transactional_read_state( + S = #s { mnesia_table = MnesiaTable, busy = false }) -> rabbit_log:info("About to read from Mnesia"), - Result = mnesia:read(MnesiaTable, 'q', 'read'), + Result = mnesia:read(MnesiaTable, 's', 'read'), rabbit_log:info("Read from Mnesia:"), rabbit_log:info(" ~p", [Result]), - [#q_record { key = 'q', val = Q }] = Result, - S #s { q = {just, Q} }. + [#s_record { key = 's', + q = Q, + next_seq_id = NextSeqId, + pending_ack_dict = PAD }] = + Result, + S #s { q = {just, Q}, + next_seq_id = NextSeqId, + pending_ack_dict = PAD, + busy = true }. -spec transactional_write_state(s()) -> s(). transactional_write_state(S = #s { - mnesia_table = MnesiaTable, q = {just, RQ} }) -> - ok = mnesia:write(MnesiaTable, #q_record { key = 'q', val = RQ }, 'write'), - S. + mnesia_table = MnesiaTable, + q = {just, Q}, + next_seq_id = NextSeqId, + pending_ack_dict = PAD, + busy = true }) -> + Result = + mnesia:write(MnesiaTable, + #s_record { key = 's', + q = Q, + next_seq_id = NextSeqId, + pending_ack_dict = PAD }, + 'write'), + rabbit_log:info("transactional_write_state:"), + rabbit_log:info(" ~p", [Result]), + S #s { busy = false }. %%---------------------------------------------------------------------------- %% Pure helper functions. All Ss are busy and have non-nothing qs. -- cgit v1.2.1 From 960befa804e986cc88925bcb87c5beb9504efc70 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 20 Jan 2011 19:05:36 -0800 Subject: All mutable state now held in Mnesia (but still in one big lump) --- src/rabbit_mnesia_queue.erl | 90 ++++++++++++++++++++++----------------------- 1 file changed, 43 insertions(+), 47 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 9a461f22..8438f94a 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -61,11 +61,10 @@ -record(s, % The in-RAM queue state { mnesia_table, % An atom holding the Mnesia table name - q, % The M queue - next_seq_id, % The next seq_id to use to build an M - pending_ack_dict, % The Mnesia seq_id->M map, pending ack - txn_dict, % In-progress txn->tx map - busy % Recursive calls not allowed + q, % The M queue (or nothing) + next_seq_id, % The next M's seq_id (or nothing) + pending_ack_dict, % The seq_id->M map, pending ack (or nothing) + txn_dict % In-progress txn->tx map }). -record(m, % A wrapper aroung a msg @@ -101,10 +100,9 @@ -type(s() :: #s { mnesia_table :: atom(), q :: maybe(queue()), - next_seq_id :: seq_id(), - pending_ack_dict :: dict(), - txn_dict :: dict(), - busy :: boolean() }). + next_seq_id :: maybe(seq_id()), + pending_ack_dict :: maybe(dict()), + txn_dict :: dict() }). -type(state() :: s()). -type(m() :: #m { msg :: rabbit_types:basic_message(), @@ -186,10 +184,9 @@ init(QueueName, _IsDurable, _Recover) -> fun () -> RS = #s { mnesia_table = MnesiaTable, q = {just, queue:new()}, - next_seq_id = 0, - pending_ack_dict = dict:new(), - txn_dict = dict:new(), - busy = true }, + next_seq_id = {just, 0}, + pending_ack_dict = {just, dict:new()}, + txn_dict = dict:new() }, transactional_write_state(RS) end), rabbit_log:info(" -> ~p", [Result]), @@ -207,7 +204,7 @@ terminate(S) -> mnesia:transaction( fun () -> S1 = transactional_read_state(S), - RS = S1 #s { pending_ack_dict = dict:new() }, + RS = S1 #s { pending_ack_dict = {just, dict:new()} }, transactional_write_state(RS) end), Result = S3, @@ -234,7 +231,7 @@ delete_and_terminate(S) -> fun () -> S1 = transactional_read_state(S), RS = S1 #s { q = {just, queue:new()}, - pending_ack_dict = dict:new() }, + pending_ack_dict = {just, dict:new()} }, transactional_write_state(RS) end), Result = S3, @@ -320,10 +317,10 @@ publish_delivered(true, Msg, Props, S) -> {atomic, {A, B}} = mnesia:transaction( fun () -> - S1 = #s { next_seq_id = SeqId } = transactional_read_state(S), + S1 = #s { next_seq_id = {just, SeqId} } = transactional_read_state(S), RS = (record_pending_ack_state( (m(Msg, SeqId, Props)) #m { is_delivered = true }, S1)) - #s { next_seq_id = SeqId + 1 }, + #s { next_seq_id = {just, SeqId + 1} }, {SeqId, transactional_write_state(RS)} end), Result = {A, B}, @@ -334,7 +331,8 @@ publish_delivered(true, Msg, Props, S) -> %% dropwhile/2 drops msgs from the head of the queue while the %% supplied predicate returns true. This function creates an Mnesia %% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. +%% another Mnesia transaction, and Pred may not call another function +%% that creates an Mnesia transaction. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -490,7 +488,8 @@ tx_rollback(Txn, S) -> %% called once the msgs have really been commited. This CPS permits %% the possibility of commit coalescing. This function creates an %% Mnesia transaction to run in, and therefore may not be called from -%% inside another Mnesia transaction. +%% inside another Mnesia transaction. However, F is called outside the +%% transaction. %% %% The following spec is wrong, blank_acks cannot be returned. %% @@ -646,8 +645,8 @@ status(S) -> mnesia:transaction( fun () -> #s { q = {just, Q}, - next_seq_id = NextSeqId, - pending_ack_dict = PAD} = + next_seq_id = {just, NextSeqId}, + pending_ack_dict = {just, PAD} } = transactional_read_state(S), [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, @@ -657,49 +656,44 @@ status(S) -> Result. %%---------------------------------------------------------------------------- -%% Monadic helper functions for inside transactions. All Ss are busy -%% and have non-nothing qs. +%% Monadic helper functions for inside transactions. All Ss have +%% non-nothing qs and next_seq_ids and pending_ack_dicts. %% ---------------------------------------------------------------------------- -spec transactional_read_state(s()) -> s(). transactional_read_state( - S = #s { mnesia_table = MnesiaTable, busy = false }) -> - rabbit_log:info("About to read from Mnesia"), - Result = mnesia:read(MnesiaTable, 's', 'read'), - rabbit_log:info("Read from Mnesia:"), - rabbit_log:info(" ~p", [Result]), + S = #s { mnesia_table = MnesiaTable, + q = nothing, + next_seq_id = nothing, + pending_ack_dict = nothing }) -> [#s_record { key = 's', q = Q, next_seq_id = NextSeqId, pending_ack_dict = PAD }] = - Result, + mnesia:read(MnesiaTable, 's', 'read'), S #s { q = {just, Q}, - next_seq_id = NextSeqId, - pending_ack_dict = PAD, - busy = true }. + next_seq_id = {just, NextSeqId}, + pending_ack_dict = {just, PAD} }. -spec transactional_write_state(s()) -> s(). transactional_write_state(S = #s { mnesia_table = MnesiaTable, q = {just, Q}, - next_seq_id = NextSeqId, - pending_ack_dict = PAD, - busy = true }) -> - Result = - mnesia:write(MnesiaTable, + next_seq_id = {just, NextSeqId}, + pending_ack_dict = {just, PAD} }) -> + ok = mnesia:write(MnesiaTable, #s_record { key = 's', q = Q, next_seq_id = NextSeqId, pending_ack_dict = PAD }, 'write'), - rabbit_log:info("transactional_write_state:"), - rabbit_log:info(" ~p", [Result]), - S #s { busy = false }. + S #s { q = nothing, next_seq_id = nothing, pending_ack_dict = nothing }. %%---------------------------------------------------------------------------- -%% Pure helper functions. All Ss are busy and have non-nothing qs. +%% Pure helper functions. All Ss have non-nothing qs and next_seq_ids +%% and pending_ack_dicts. %% ---------------------------------------------------------------------------- -spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. @@ -797,18 +791,18 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> publish_state(Msg, Props, IsDelivered, - S = #s { q = {just, Q}, next_seq_id = SeqId }) -> + S = #s { q = {just, Q}, next_seq_id = {just, SeqId} }) -> S #s { q = {just, queue:in( (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q)}, - next_seq_id = SeqId + 1 }. + next_seq_id = {just, SeqId + 1} }. -spec record_pending_ack_state(m(), s()) -> s(). record_pending_ack_state(M = #m { seq_id = SeqId }, - S = #s { pending_ack_dict = PAD }) -> - S #s { pending_ack_dict = dict:store(SeqId, M, PAD) }. + S = #s { pending_ack_dict = {just, PAD} }) -> + S #s { pending_ack_dict = {just, dict:store(SeqId, M, PAD)} }. -spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), [rabbit_guid:guid()], @@ -819,10 +813,12 @@ internal_ack3(_, [], S) -> {[], S}; internal_ack3(F, SeqIds, S) -> {AllGuids, S1} = lists:foldl( - fun (SeqId, {Acc, Si = #s { pending_ack_dict = PAD }}) -> + fun (SeqId, {Acc, Si = #s { pending_ack_dict = {just, PAD} }}) -> M = dict:fetch(SeqId, PAD), {[m_guid(M) | Acc], - F(M, Si #s { pending_ack_dict = dict:erase(SeqId, PAD)})} + F(M, + Si #s { pending_ack_dict = + {just, dict:erase(SeqId, PAD)} })} end, {[], S}, SeqIds), -- cgit v1.2.1 From b708f1b10a556653334e4110d26256ffed3511f2 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 20 Jan 2011 19:16:15 -0800 Subject: Improved comments; slightly clarified code. --- src/rabbit_mnesia_queue.erl | 49 +++++++++++++++++---------------------------- 1 file changed, 18 insertions(+), 31 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 8438f94a..86997848 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -200,14 +200,13 @@ init(QueueName, _IsDurable, _Recover) -> %% -spec(terminate/1 :: (state()) -> state()). terminate(S) -> rabbit_log:info("terminate(~p) ->", [S]), - {atomic, S3} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), RS = S1 #s { pending_ack_dict = {just, dict:new()} }, transactional_write_state(RS) end), - Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -226,7 +225,7 @@ terminate(S) -> delete_and_terminate(S) -> rabbit_log:info("delete_and_terminate(~p) ->", [S]), - {atomic, S3} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), @@ -234,7 +233,6 @@ delete_and_terminate(S) -> pending_ack_dict = {just, dict:new()} }, transactional_write_state(RS) end), - Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -248,14 +246,13 @@ delete_and_terminate(S) -> purge(S) -> rabbit_log:info("purge(~p) ->", [S]), - {atomic, {A, S3}} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = #s { q = {just, Q} } = transactional_read_state(S), RS = S1 #s { q = {just, queue:new()} }, {queue:len(Q), transactional_write_state(RS)} end), - Result = {A, S3}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -276,14 +273,13 @@ publish(Msg, Props, S) -> rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), rabbit_log:info(" ~p) ->", [S]), - {atomic, S3} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), RS = publish_state(Msg, Props, false, S1), transactional_write_state(RS) end), - Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -314,7 +310,7 @@ publish_delivered(true, Msg, Props, S) -> rabbit_log:info(" ~p,", [Msg]), rabbit_log:info(" ~p,", [Props]), rabbit_log:info(" ~p) ->", [S]), - {atomic, {A, B}} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = #s { next_seq_id = {just, SeqId} } = transactional_read_state(S), @@ -323,7 +319,6 @@ publish_delivered(true, Msg, Props, S) -> #s { next_seq_id = {just, SeqId + 1} }, {SeqId, transactional_write_state(RS)} end), - Result = {A, B}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -331,8 +326,8 @@ publish_delivered(true, Msg, Props, S) -> %% dropwhile/2 drops msgs from the head of the queue while the %% supplied predicate returns true. This function creates an Mnesia %% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction, and Pred may not call another function -%% that creates an Mnesia transaction. +%% another Mnesia transaction, and the supplied Pred may not call +%% another function that creates an Mnesia transaction. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -340,7 +335,7 @@ publish_delivered(true, Msg, Props, S) -> dropwhile(Pred, S) -> rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), - {atomic, {_, S3}} = + {atomic, {_, Result}} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), @@ -348,7 +343,6 @@ dropwhile(Pred, S) -> internal_dropwhile(Pred, S1), {Atom, transactional_write_state(RS)} end), - Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -362,7 +356,7 @@ dropwhile(Pred, S) -> fetch(AckRequired, S) -> rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), - {atomic, {R, S3}} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), @@ -372,7 +366,6 @@ fetch(AckRequired, S) -> S1), {DR, transactional_write_state(RS)} end), - Result = {R, S3 }, rabbit_log:info(" -> ~p", [Result]), Result. @@ -389,14 +382,13 @@ ack(SeqIds, S) -> rabbit_log:info("ack("), rabbit_log:info("~p,", [SeqIds]), rabbit_log:info(" ~p) ->", [S]), - {atomic, {Guids, S3}} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), {Guids, RS} = internal_ack(SeqIds, S1), {Guids, transactional_write_state(RS)} end), - Result = {Guids, S3}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -416,7 +408,7 @@ ack(SeqIds, S) -> tx_publish(Txn, Msg, Props, S) -> rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), - {atomic, S3} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), @@ -426,7 +418,6 @@ tx_publish(Txn, Msg, Props, S) -> S1), transactional_write_state(RS) end), - Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -443,7 +434,7 @@ tx_publish(Txn, Msg, Props, S) -> tx_ack(Txn, SeqIds, S) -> rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), - {atomic, S3} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), @@ -454,7 +445,6 @@ tx_ack(Txn, SeqIds, S) -> S1), transactional_write_state(RS) end), - Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. @@ -471,7 +461,7 @@ tx_ack(Txn, SeqIds, S) -> tx_rollback(Txn, S) -> rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), - {atomic, {A, B}} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), @@ -479,7 +469,6 @@ tx_rollback(Txn, S) -> RS = erase_tx(Txn, S), {SeqIds, transactional_write_state(RS)} end), - Result = {A, B}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -488,10 +477,10 @@ tx_rollback(Txn, S) -> %% called once the msgs have really been commited. This CPS permits %% the possibility of commit coalescing. This function creates an %% Mnesia transaction to run in, and therefore may not be called from -%% inside another Mnesia transaction. However, F is called outside the -%% transaction. +%% inside another Mnesia transaction. However, the supplied F is +%% called outside the transaction. %% -%% The following spec is wrong, blank_acks cannot be returned. +%% The following spec is wrong, as blank_acks cannot be returned. %% %% -spec(tx_commit/4 :: %% (rabbit_types:txn(), @@ -503,7 +492,7 @@ tx_rollback(Txn, S) -> tx_commit(Txn, F, PropsF, S) -> rabbit_log:info( "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), - {atomic, {A, B}} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), @@ -513,7 +502,6 @@ tx_commit(Txn, F, PropsF, S) -> {SeqIds, transactional_write_state(RS)} end), F(), - Result = {A, B}, rabbit_log:info(" -> ~p", [Result]), Result. @@ -530,7 +518,7 @@ tx_commit(Txn, F, PropsF, S) -> requeue(SeqIds, PropsF, S) -> rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), - {atomic, S3} = + {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), @@ -543,7 +531,6 @@ requeue(SeqIds, PropsF, S) -> S1), transactional_write_state(RS) end), - Result = S3, rabbit_log:info(" -> ~p", [Result]), Result. -- cgit v1.2.1 From 59811da696cef8c9740075c670d3291f4a9e3f9c Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 24 Jan 2011 15:15:29 -0800 Subject: Split Mnesia state into three rows. More very soon. --- src/rabbit_mnesia_queue.erl | 186 +++++++++++++++++++++++++++----------------- 1 file changed, 114 insertions(+), 72 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 86997848..4e20a937 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -55,34 +55,51 @@ %% queues.) %% ---------------------------------------------------------------------------- +%% BUG: The rabbit_backing_queue_spec behaviour needs +%% improvements. For example, rabbit_amqqueue_process knows too much +%% about the state of a backing queue, even though this state may now +%% change without its knowledge. Additionally, there are points in the +%% protocol where failures can lose messages. + %% BUG: Need to provide better back-pressure when queue is filling up. +%% BUG: Need to store each message or pending ack in a separate row. + -behaviour(rabbit_backing_queue). --record(s, % The in-RAM queue state - { mnesia_table, % An atom holding the Mnesia table name - q, % The M queue (or nothing) - next_seq_id, % The next M's seq_id (or nothing) - pending_ack_dict, % The seq_id->M map, pending ack (or nothing) - txn_dict % In-progress txn->tx map +-record(s, % The in-RAM queue state + { mnesia_tables, % Atoms holding the Mnesia table names + q, % The M queue (or nothing) + next_seq_id, % The next M's seq_id (or nothing) + p, % The seq_id->M map, pending ack dict (or nothing) + txn_dict % In-progress txn->tx map }). --record(m, % A wrapper aroung a msg - { seq_id, % The seq_id for the msg - msg, % The msg itself - props, % The msg properties - is_delivered % Has the msg been delivered? (for reporting) +-record(m, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg + msg, % The msg itself + props, % The msg properties + is_delivered % Has the msg been delivered? (for reporting) }). -record(tx, - { to_pub, - to_ack }). - --record(s_record, % Temporary whole-queue record in Mnesia - { key, % The key: the atom 's' - q, % The M queue - next_seq_id, % The next seq_id to use to build an M - pending_ack_dict % The Mnesia seq_id->M map, pending ack + { to_pub, % List of (msg, props) pairs to publish + to_ack % List of seq_ids to ack + }). + +-record(q_record, % Temporary whole-queue record in Mnesia + { key, % The key: the atom 'q' + q % The M queue + }). + +-record(p_record, % Temporary p record in Mnesia + { key, % The key: the atom 'p' + p % The Mnesia seq_id->M map, pending ack + }). + +-record(n_record, % Temporary next_seq_id record in Mnesia + { key, % The key: the atom 'n' + next_seq_id % The Mnesia next_seq_id }). -include("rabbit.hrl"). @@ -98,10 +115,10 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(s() :: #s { mnesia_table :: atom(), +-type(s() :: #s { mnesia_tables :: {atom(), atom(), atom()}, q :: maybe(queue()), next_seq_id :: maybe(seq_id()), - pending_ack_dict :: maybe(dict()), + p :: maybe(dict()), txn_dict :: dict() }). -type(state() :: s()). @@ -114,10 +131,14 @@ rabbit_types:message_properties()}], to_ack :: [seq_id()] }). --type(s_record() :: #s_record { key :: s, - q :: queue(), - next_seq_id :: seq_id(), - pending_ack_dict :: dict() }). +-type(q_record() :: #q_record { key :: 'q', + q :: queue() }). + +-type(p_record() :: #p_record { key :: 'p', + p :: dict() }). + +-type(n_record() :: #n_record { key :: 'n', + next_seq_id :: seq_id() }). -include("rabbit_backing_queue_spec.hrl"). @@ -166,26 +187,50 @@ stop() -> ok. init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~p, _, _) ->", [QueueName]), - MnesiaTable = mnesia_table(QueueName), + {MnesiaQTable, MnesiaPTable, MnesiaNTable} = mnesia_tables(QueueName), %% It's unfortunate that tables cannot be created or deleted %% within an Mnesia transaction! - Attributes = record_info(fields, s_record), + QAttributes = record_info(fields, q_record), + case mnesia:create_table( + MnesiaQTable, + [{record_name, 'q_record'}, {attributes, QAttributes}]) + of + {atomic, ok} -> ok; + {aborted, {already_exists, MnesiaQTable}} -> + 'q_record' = mnesia:table_info(MnesiaQTable, record_name), + QAttributes = mnesia:table_info(MnesiaQTable, attributes), + ok + end, + PAttributes = record_info(fields, p_record), case mnesia:create_table( - MnesiaTable, [{record_name, 's_record'}, {attributes, Attributes}]) + MnesiaPTable, + [{record_name, 'p_record'}, {attributes, PAttributes}]) of {atomic, ok} -> ok; - {aborted, {already_exists, MnesiaTable}} -> - 's_record' = mnesia:table_info(MnesiaTable, record_name), - Attributes = mnesia:table_info(MnesiaTable, attributes), + {aborted, {already_exists, MnesiaPTable}} -> + 'p_record' = mnesia:table_info(MnesiaPTable, record_name), + PAttributes = mnesia:table_info(MnesiaPTable, attributes), + ok + end, + NAttributes = record_info(fields, n_record), + case mnesia:create_table( + MnesiaNTable, + [{record_name, 'n_record'}, {attributes, NAttributes}]) + of + {atomic, ok} -> ok; + {aborted, {already_exists, MnesiaNTable}} -> + 'n_record' = mnesia:table_info(MnesiaNTable, record_name), + NAttributes = mnesia:table_info(MnesiaNTable, attributes), ok end, {atomic, Result} = mnesia:transaction( fun () -> - RS = #s { mnesia_table = MnesiaTable, + RS = #s { mnesia_tables = + {MnesiaQTable, MnesiaPTable, MnesiaNTable}, q = {just, queue:new()}, next_seq_id = {just, 0}, - pending_ack_dict = {just, dict:new()}, + p = {just, dict:new()}, txn_dict = dict:new() }, transactional_write_state(RS) end), @@ -204,7 +249,7 @@ terminate(S) -> mnesia:transaction( fun () -> S1 = transactional_read_state(S), - RS = S1 #s { pending_ack_dict = {just, dict:new()} }, + RS = S1 #s { p = {just, dict:new()} }, transactional_write_state(RS) end), rabbit_log:info(" -> ~p", [Result]), @@ -230,7 +275,7 @@ delete_and_terminate(S) -> fun () -> S1 = transactional_read_state(S), RS = S1 #s { q = {just, queue:new()}, - pending_ack_dict = {just, dict:new()} }, + p = {just, dict:new()} }, transactional_write_state(RS) end), rabbit_log:info(" -> ~p", [Result]), @@ -633,54 +678,51 @@ status(S) -> fun () -> #s { q = {just, Q}, next_seq_id = {just, NextSeqId}, - pending_ack_dict = {just, PAD} } = + p = {just, P} } = transactional_read_state(S), [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, - {acks, dict:size(PAD)}] + {acks, dict:size(P)}] end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% Monadic helper functions for inside transactions. All Ss have -%% non-nothing qs and next_seq_ids and pending_ack_dicts. +%% non-nothing qs and ps and next_seq_ids. %% ---------------------------------------------------------------------------- -spec transactional_read_state(s()) -> s(). transactional_read_state( - S = #s { mnesia_table = MnesiaTable, + S = #s { mnesia_tables = {MnesiaQTable, MnesiaPTable, MnesiaNTable}, q = nothing, next_seq_id = nothing, - pending_ack_dict = nothing }) -> - [#s_record { key = 's', - q = Q, - next_seq_id = NextSeqId, - pending_ack_dict = PAD }] = - mnesia:read(MnesiaTable, 's', 'read'), - S #s { q = {just, Q}, - next_seq_id = {just, NextSeqId}, - pending_ack_dict = {just, PAD} }. + p = nothing }) -> + [#q_record { key = 'q', q = Q }] = mnesia:read(MnesiaQTable, 'q', 'read'), + [#p_record { key = 'p', p = P }] = mnesia:read(MnesiaPTable, 'p', 'read'), + [#n_record { key = 'n', next_seq_id = NextSeqId }] = + mnesia:read(MnesiaNTable, 'n', 'read'), + S #s { q = {just, Q}, next_seq_id = {just, NextSeqId}, p = {just, P} }. -spec transactional_write_state(s()) -> s(). transactional_write_state(S = #s { - mnesia_table = MnesiaTable, + mnesia_tables = + {MnesiaQTable, MnesiaPTable, MnesiaNTable}, q = {just, Q}, next_seq_id = {just, NextSeqId}, - pending_ack_dict = {just, PAD} }) -> - ok = mnesia:write(MnesiaTable, - #s_record { key = 's', - q = Q, - next_seq_id = NextSeqId, - pending_ack_dict = PAD }, - 'write'), - S #s { q = nothing, next_seq_id = nothing, pending_ack_dict = nothing }. - -%%---------------------------------------------------------------------------- -%% Pure helper functions. All Ss have non-nothing qs and next_seq_ids -%% and pending_ack_dicts. + p = {just, P} }) -> + ok = mnesia:write(MnesiaQTable, #q_record { key = 'q', q = Q }, 'write'), + ok = mnesia:write(MnesiaPTable, #p_record { key = 'p', p = P }, 'write'), + ok = mnesia:write(MnesiaNTable, + #n_record { key = 'n', next_seq_id = NextSeqId }, + 'write'), + S #s { q = nothing, next_seq_id = nothing, p = nothing }. + +%%---------------------------------------------------------------------------- +%% Pure helper functions. All Ss have non-nothing qs and ps and +%% next_seq_ids. %% ---------------------------------------------------------------------------- -spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. @@ -788,8 +830,8 @@ publish_state(Msg, -spec record_pending_ack_state(m(), s()) -> s(). record_pending_ack_state(M = #m { seq_id = SeqId }, - S = #s { pending_ack_dict = {just, PAD} }) -> - S #s { pending_ack_dict = {just, dict:store(SeqId, M, PAD)} }. + S = #s { p = {just, P} }) -> + S #s { p = {just, dict:store(SeqId, M, P)} }. -spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), [rabbit_guid:guid()], @@ -800,12 +842,10 @@ internal_ack3(_, [], S) -> {[], S}; internal_ack3(F, SeqIds, S) -> {AllGuids, S1} = lists:foldl( - fun (SeqId, {Acc, Si = #s { pending_ack_dict = {just, PAD} }}) -> - M = dict:fetch(SeqId, PAD), + fun (SeqId, {Acc, Si = #s { p = {just, P} }}) -> + M = dict:fetch(SeqId, P), {[m_guid(M) | Acc], - F(M, - Si #s { pending_ack_dict = - {just, dict:erase(SeqId, PAD)} })} + F(M, Si #s { p = {just, dict:erase(SeqId, P)} })} end, {[], S}, SeqIds), @@ -819,8 +859,10 @@ m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. %% TODO: Import correct argument type. --spec mnesia_table(_) -> atom(). - -mnesia_table(QueueName) -> - list_to_atom(lists:flatten(io_lib:format("~p", [QueueName]))). +-spec mnesia_tables(_) -> {atom(), atom(), atom()}. +mnesia_tables(QueueName) -> + Str = lists:flatten(io_lib:format("~p", [QueueName])), + {list_to_atom(lists:append("q: ", Str)), + list_to_atom(lists:append("p: ", Str)), + list_to_atom(lists:append("n: ", Str))}. -- cgit v1.2.1 From 0efde9406f7e3fa0efe8bb8a4c2d932820fadb0d Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 24 Jan 2011 16:09:41 -0800 Subject: Scaffolding for converting P writers to impure. --- src/rabbit_mnesia_queue.erl | 96 ++++++++++++++++++++++----------------------- 1 file changed, 48 insertions(+), 48 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 4e20a937..5ee3ae74 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -85,7 +85,7 @@ -record(tx, { to_pub, % List of (msg, props) pairs to publish to_ack % List of seq_ids to ack - }). + }). -record(q_record, % Temporary whole-queue record in Mnesia { key, % The key: the atom 'q' @@ -193,7 +193,7 @@ init(QueueName, _IsDurable, _Recover) -> QAttributes = record_info(fields, q_record), case mnesia:create_table( MnesiaQTable, - [{record_name, 'q_record'}, {attributes, QAttributes}]) + [{record_name, 'q_record'}, {attributes, QAttributes}]) of {atomic, ok} -> ok; {aborted, {already_exists, MnesiaQTable}} -> @@ -204,7 +204,7 @@ init(QueueName, _IsDurable, _Recover) -> PAttributes = record_info(fields, p_record), case mnesia:create_table( MnesiaPTable, - [{record_name, 'p_record'}, {attributes, PAttributes}]) + [{record_name, 'p_record'}, {attributes, PAttributes}]) of {atomic, ok} -> ok; {aborted, {already_exists, MnesiaPTable}} -> @@ -215,7 +215,7 @@ init(QueueName, _IsDurable, _Recover) -> NAttributes = record_info(fields, n_record), case mnesia:create_table( MnesiaNTable, - [{record_name, 'n_record'}, {attributes, NAttributes}]) + [{record_name, 'n_record'}, {attributes, NAttributes}]) of {atomic, ok} -> ok; {aborted, {already_exists, MnesiaNTable}} -> @@ -227,7 +227,7 @@ init(QueueName, _IsDurable, _Recover) -> mnesia:transaction( fun () -> RS = #s { mnesia_tables = - {MnesiaQTable, MnesiaPTable, MnesiaNTable}, + {MnesiaQTable, MnesiaPTable, MnesiaNTable}, q = {just, queue:new()}, next_seq_id = {just, 0}, p = {just, dict:new()}, @@ -275,7 +275,7 @@ delete_and_terminate(S) -> fun () -> S1 = transactional_read_state(S), RS = S1 #s { q = {just, queue:new()}, - p = {just, dict:new()} }, + p = {just, dict:new()} }, transactional_write_state(RS) end), rabbit_log:info(" -> ~p", [Result]), @@ -709,29 +709,40 @@ transactional_read_state( transactional_write_state(S = #s { mnesia_tables = - {MnesiaQTable, MnesiaPTable, MnesiaNTable}, + {MnesiaQTable, MnesiaPTable, MnesiaNTable}, q = {just, Q}, next_seq_id = {just, NextSeqId}, p = {just, P} }) -> ok = mnesia:write(MnesiaQTable, #q_record { key = 'q', q = Q }, 'write'), ok = mnesia:write(MnesiaPTable, #p_record { key = 'p', p = P }, 'write'), ok = mnesia:write(MnesiaNTable, - #n_record { key = 'n', next_seq_id = NextSeqId }, - 'write'), + #n_record { key = 'n', next_seq_id = NextSeqId }, + 'write'), S #s { q = nothing, next_seq_id = nothing, p = nothing }. -%%---------------------------------------------------------------------------- -%% Pure helper functions. All Ss have non-nothing qs and ps and -%% next_seq_ids. -%% ---------------------------------------------------------------------------- +-spec record_pending_ack_state(m(), s()) -> s(). --spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. +record_pending_ack_state(M = #m { seq_id = SeqId }, + S = #s { p = {just, P} }) -> + S #s { p = {just, dict:store(SeqId, M, P)} }. -internal_queue_out(F, S = #s { q = {just, Q} }) -> - case queue:out(Q) of - {empty, _} -> {empty, S}; - {{value, M}, Qa} -> F(M, S #s { q = {just, Qa} }) - end. +-spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), + [rabbit_guid:guid()], + s()) -> + {[rabbit_guid:guid()], s()}. + +internal_ack3(_, [], S) -> {[], S}; +internal_ack3(F, SeqIds, S) -> + {AllGuids, S1} = + lists:foldl( + fun (SeqId, {Acc, Si = #s { p = {just, P} }}) -> + M = dict:fetch(SeqId, P), + {[m_guid(M) | Acc], + F(M, Si #s { p = {just, dict:erase(SeqId, P)} })} + end, + {[], S}, + SeqIds), + {lists:reverse(AllGuids), S1}. -spec internal_fetch/3 :: (ack_required(), m(), s()) -> {fetch_result(), s()}. @@ -751,6 +762,11 @@ internal_fetch(AckRequired, end, {{Msg, IsDelivered, Ack, queue:len(Q)}, S1}. +-spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). + +internal_ack(SeqIds, S) -> + internal_ack3(fun (_, Si) -> Si end, SeqIds, S). + -spec(internal_dropwhile/2 :: (fun ((rabbit_types:message_properties()) -> boolean()), s()) -> {empty | ok, s()}). @@ -767,11 +783,6 @@ internal_dropwhile(Pred, S) -> end, S). --spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). - -internal_ack(SeqIds, S) -> - internal_ack3(fun (_, Si) -> Si end, SeqIds, S). - -spec tx_commit_state([rabbit_types:basic_message()], [seq_id()], message_properties_transformer(), @@ -785,6 +796,19 @@ tx_commit_state(Pubs, SeqIds, PropsF, S) -> S1, [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). +%%---------------------------------------------------------------------------- +%% Pure helper functions. All Ss have non-nothing qs and ps and +%% next_seq_ids. +%% ---------------------------------------------------------------------------- + +-spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. + +internal_queue_out(F, S = #s { q = {just, Q} }) -> + case queue:out(Q) of + {empty, _} -> {empty, S}; + {{value, M}, Qa} -> F(M, S #s { q = {just, Qa} }) + end. + -spec m(rabbit_types:basic_message(), seq_id(), rabbit_types:message_properties()) -> @@ -827,30 +851,6 @@ publish_state(Msg, (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q)}, next_seq_id = {just, SeqId + 1} }. --spec record_pending_ack_state(m(), s()) -> s(). - -record_pending_ack_state(M = #m { seq_id = SeqId }, - S = #s { p = {just, P} }) -> - S #s { p = {just, dict:store(SeqId, M, P)} }. - --spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), - [rabbit_guid:guid()], - s()) -> - {[rabbit_guid:guid()], s()}. - -internal_ack3(_, [], S) -> {[], S}; -internal_ack3(F, SeqIds, S) -> - {AllGuids, S1} = - lists:foldl( - fun (SeqId, {Acc, Si = #s { p = {just, P} }}) -> - M = dict:fetch(SeqId, P), - {[m_guid(M) | Acc], - F(M, Si #s { p = {just, dict:erase(SeqId, P)} })} - end, - {[], S}, - SeqIds), - {lists:reverse(AllGuids), S1}. - -spec m_guid(m()) -> rabbit_guid:guid(). m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. -- cgit v1.2.1 From 3d1023789735543174d9283e1c2a7e6b3b996067 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 24 Jan 2011 17:10:05 -0800 Subject: Pending acks now held in Mnesia instead of RAM. --- src/rabbit_mnesia_queue.erl | 100 ++++++++++++++++++++++++-------------------- 1 file changed, 55 insertions(+), 45 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 5ee3ae74..ca9a15df 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -1,4 +1,4 @@ -%% The contents of this file are subject to the Mozilla Public License +<%% The contents of this file are subject to the Mozilla Public License %% Version 1.1 (the "License"); you may not use this file except in %% compliance with the License. You may obtain a copy of the License at %% http://www.mozilla.org/MPL/ @@ -48,7 +48,8 @@ %%---------------------------------------------------------------------------- %% This module wraps msgs into M records for internal use, including -%% additional information. Pending acks are also recorded as Ms. +%% additional information. Pending acks are also recorded as Ms, in +%% Mnesia. %% %% All queues are durable in this version, and all msgs are treated as %% persistent. (This will no doubt break some tests for non-durable @@ -63,7 +64,11 @@ %% BUG: Need to provide better back-pressure when queue is filling up. -%% BUG: Need to store each message or pending ack in a separate row. +%% BUG: Need to store each message in a separate row. + +%% BUG: Need to think about recovering pending acks + +%% BUG: Should not use mnesia:all_keys to count entries -behaviour(rabbit_backing_queue). @@ -71,7 +76,6 @@ { mnesia_tables, % Atoms holding the Mnesia table names q, % The M queue (or nothing) next_seq_id, % The next M's seq_id (or nothing) - p, % The seq_id->M map, pending ack dict (or nothing) txn_dict % In-progress txn->tx map }). @@ -92,9 +96,9 @@ q % The M queue }). --record(p_record, % Temporary p record in Mnesia - { key, % The key: the atom 'p' - p % The Mnesia seq_id->M map, pending ack +-record(p_record, % P record in Mnesia + { seq_id, % The key: The seq_id + m % The value: The M }). -record(n_record, % Temporary next_seq_id record in Mnesia @@ -118,7 +122,6 @@ -type(s() :: #s { mnesia_tables :: {atom(), atom(), atom()}, q :: maybe(queue()), next_seq_id :: maybe(seq_id()), - p :: maybe(dict()), txn_dict :: dict() }). -type(state() :: s()). @@ -134,8 +137,8 @@ -type(q_record() :: #q_record { key :: 'q', q :: queue() }). --type(p_record() :: #p_record { key :: 'p', - p :: dict() }). +-type(p_record() :: #p_record { seq_id :: seq_id(), + m :: m() }). -type(n_record() :: #n_record { key :: 'n', next_seq_id :: seq_id() }). @@ -230,7 +233,6 @@ init(QueueName, _IsDurable, _Recover) -> {MnesiaQTable, MnesiaPTable, MnesiaNTable}, q = {just, queue:new()}, next_seq_id = {just, 0}, - p = {just, dict:new()}, txn_dict = dict:new() }, transactional_write_state(RS) end), @@ -243,13 +245,15 @@ init(QueueName, _IsDurable, _Recover) -> %% therefore may not be called from inside another Mnesia transaction. %% %% -spec(terminate/1 :: (state()) -> state()). -terminate(S) -> + +terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> rabbit_log:info("terminate(~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), - RS = S1 #s { p = {just, dict:new()} }, + internal_clear_table(MnesiaPTable), + RS = S1, transactional_write_state(RS) end), rabbit_log:info(" -> ~p", [Result]), @@ -268,14 +272,14 @@ terminate(S) -> %% the only difference between purge and delete is that delete also %% needs to delete everything that's been delivered and not ack'd. -delete_and_terminate(S) -> +delete_and_terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> rabbit_log:info("delete_and_terminate(~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), - RS = S1 #s { q = {just, queue:new()}, - p = {just, dict:new()} }, + internal_clear_table(MnesiaPTable), + RS = S1 #s { q = {just, queue:new()} }, transactional_write_state(RS) end), rabbit_log:info(" -> ~p", [Result]), @@ -671,74 +675,67 @@ handle_pre_hibernate(S) -> S. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(S) -> +status(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> rabbit_log:info("status(~p)", [S]), {atomic, Result} = mnesia:transaction( fun () -> - #s { q = {just, Q}, - next_seq_id = {just, NextSeqId}, - p = {just, P} } = + #s { q = {just, Q}, next_seq_id = {just, NextSeqId} } = transactional_read_state(S), - [{len, queue:len(Q)}, - {next_seq_id, NextSeqId}, - {acks, dict:size(P)}] + LP = length(mnesia:all_keys(MnesiaPTable)), + [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, LP}] end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% Monadic helper functions for inside transactions. All Ss have -%% non-nothing qs and ps and next_seq_ids. +%% non-nothing qs and next_seq_ids. %% ---------------------------------------------------------------------------- -spec transactional_read_state(s()) -> s(). transactional_read_state( - S = #s { mnesia_tables = {MnesiaQTable, MnesiaPTable, MnesiaNTable}, + S = #s { mnesia_tables = {MnesiaQTable, _, MnesiaNTable}, q = nothing, - next_seq_id = nothing, - p = nothing }) -> + next_seq_id = nothing }) -> [#q_record { key = 'q', q = Q }] = mnesia:read(MnesiaQTable, 'q', 'read'), - [#p_record { key = 'p', p = P }] = mnesia:read(MnesiaPTable, 'p', 'read'), [#n_record { key = 'n', next_seq_id = NextSeqId }] = mnesia:read(MnesiaNTable, 'n', 'read'), - S #s { q = {just, Q}, next_seq_id = {just, NextSeqId}, p = {just, P} }. + S #s { q = {just, Q}, next_seq_id = {just, NextSeqId} }. -spec transactional_write_state(s()) -> s(). transactional_write_state(S = #s { - mnesia_tables = - {MnesiaQTable, MnesiaPTable, MnesiaNTable}, + mnesia_tables = {MnesiaQTable, _, MnesiaNTable}, q = {just, Q}, - next_seq_id = {just, NextSeqId}, - p = {just, P} }) -> + next_seq_id = {just, NextSeqId} }) -> ok = mnesia:write(MnesiaQTable, #q_record { key = 'q', q = Q }, 'write'), - ok = mnesia:write(MnesiaPTable, #p_record { key = 'p', p = P }, 'write'), ok = mnesia:write(MnesiaNTable, #n_record { key = 'n', next_seq_id = NextSeqId }, 'write'), - S #s { q = nothing, next_seq_id = nothing, p = nothing }. + S #s { q = nothing, next_seq_id = nothing }. -spec record_pending_ack_state(m(), s()) -> s(). record_pending_ack_state(M = #m { seq_id = SeqId }, - S = #s { p = {just, P} }) -> - S #s { p = {just, dict:store(SeqId, M, P)} }. + S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> + mnesia:write(MnesiaPTable, #p_record { seq_id = SeqId, m = M }, 'write'), + S. -spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), [rabbit_guid:guid()], s()) -> {[rabbit_guid:guid()], s()}. -internal_ack3(_, [], S) -> {[], S}; -internal_ack3(F, SeqIds, S) -> +internal_ack3(F, SeqIds, S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> {AllGuids, S1} = lists:foldl( - fun (SeqId, {Acc, Si = #s { p = {just, P} }}) -> - M = dict:fetch(SeqId, P), - {[m_guid(M) | Acc], - F(M, Si #s { p = {just, dict:erase(SeqId, P)} })} + fun (SeqId, {Acc, Si}) -> + [#p_record { m = M }] = + mnesia:read(MnesiaPTable, SeqId, 'read'), + mnesia:delete(MnesiaPTable, SeqId, 'write'), + {[m_guid(M) | Acc], F(M, Si)} end, {[], S}, SeqIds), @@ -796,9 +793,22 @@ tx_commit_state(Pubs, SeqIds, PropsF, S) -> S1, [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). +%% Like mnesia:clear_table, but within a transaction. + +%% BUG: The write-set of the transaction may be huge if the table is +%% huge. + +-spec internal_clear_table(atom()) -> ok. + +internal_clear_table(Table) -> + case mnesia:first(Table) of + '$end_of_table' -> ok; + Key -> mnesia:delete(Table, Key, 'write'), + internal_clear_table(Table) + end. + %%---------------------------------------------------------------------------- -%% Pure helper functions. All Ss have non-nothing qs and ps and -%% next_seq_ids. +%% Pure helper functions. All Ss have non-nothing qs and next_seq_ids. %% ---------------------------------------------------------------------------- -spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. -- cgit v1.2.1 From 908b0b47ba7c6c50ee48a6341eb04fc49fa986e1 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 25 Jan 2011 10:48:45 -0800 Subject: Fixed printfs. --- src/rabbit_mnesia_queue.erl | 64 ++++++++++++++++++++------------------------- 1 file changed, 29 insertions(+), 35 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index ca9a15df..3b670f13 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -1,4 +1,4 @@ -<%% The contents of this file are subject to the Mozilla Public License +%% The contents of this file are subject to the Mozilla Public License %% Version 1.1 (the "License"); you may not use this file except in %% compliance with the License. You may obtain a copy of the License at %% http://www.mozilla.org/MPL/ @@ -56,11 +56,11 @@ %% queues.) %% ---------------------------------------------------------------------------- -%% BUG: The rabbit_backing_queue_spec behaviour needs -%% improvements. For example, rabbit_amqqueue_process knows too much -%% about the state of a backing queue, even though this state may now -%% change without its knowledge. Additionally, there are points in the -%% protocol where failures can lose messages. +%% BUG: The rabbit_backing_queue_spec behaviour needs improvement. For +%% example, rabbit_amqqueue_process knows too much about the state of +%% a backing queue, even though this state may now change without its +%% knowledge. Additionally, there are points in the protocol where +%% failures can lose messages. %% BUG: Need to provide better back-pressure when queue is filling up. @@ -89,7 +89,7 @@ -record(tx, { to_pub, % List of (msg, props) pairs to publish to_ack % List of seq_ids to ack - }). + }). -record(q_record, % Temporary whole-queue record in Mnesia { key, % The key: the atom 'q' @@ -189,7 +189,7 @@ stop() -> ok. %% -> state()). init(QueueName, _IsDurable, _Recover) -> - rabbit_log:info("init(~p, _, _) ->", [QueueName]), + rabbit_log:info("init(~n ~p,~n _, _) ->", [QueueName]), {MnesiaQTable, MnesiaPTable, MnesiaNTable} = mnesia_tables(QueueName), %% It's unfortunate that tables cannot be created or deleted %% within an Mnesia transaction! @@ -247,7 +247,7 @@ init(QueueName, _IsDurable, _Recover) -> %% -spec(terminate/1 :: (state()) -> state()). terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> - rabbit_log:info("terminate(~p) ->", [S]), + rabbit_log:info("terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -273,7 +273,7 @@ terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> %% needs to delete everything that's been delivered and not ack'd. delete_and_terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> - rabbit_log:info("delete_and_terminate(~p) ->", [S]), + rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -294,7 +294,7 @@ delete_and_terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). purge(S) -> - rabbit_log:info("purge(~p) ->", [S]), + rabbit_log:info("purge(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -318,10 +318,7 @@ purge(S) -> %% -> state()). publish(Msg, Props, S) -> - rabbit_log:info("publish("), - rabbit_log:info(" ~p,", [Msg]), - rabbit_log:info(" ~p,", [Props]), - rabbit_log:info(" ~p) ->", [S]), + rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -349,20 +346,18 @@ publish(Msg, Props, S) -> %% -> {ack(), state()}). publish_delivered(false, _, _, S) -> - rabbit_log:info("publish_delivered(false, _, _,"), - rabbit_log:info(" ~p) ->", [S]), + rabbit_log:info("publish_delivered(false, _, _,~n ~p) ->", [S]), Result = {blank_ack, S}, rabbit_log:info(" -> ~p", [Result]), Result; publish_delivered(true, Msg, Props, S) -> - rabbit_log:info("publish_delivered(true, "), - rabbit_log:info(" ~p,", [Msg]), - rabbit_log:info(" ~p,", [Props]), - rabbit_log:info(" ~p) ->", [S]), + rabbit_log:info( + "publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), {atomic, Result} = mnesia:transaction( fun () -> - S1 = #s { next_seq_id = {just, SeqId} } = transactional_read_state(S), + S1 = #s { next_seq_id = {just, SeqId} } = + transactional_read_state(S), RS = (record_pending_ack_state( (m(Msg, SeqId, Props)) #m { is_delivered = true }, S1)) #s { next_seq_id = {just, SeqId + 1} }, @@ -383,7 +378,7 @@ publish_delivered(true, Msg, Props, S) -> %% -> state()). dropwhile(Pred, S) -> - rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), + rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), {atomic, {_, Result}} = mnesia:transaction( fun () -> @@ -404,7 +399,7 @@ dropwhile(Pred, S) -> %% {ok | fetch_result(), state()}). fetch(AckRequired, S) -> - rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), + rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -428,9 +423,7 @@ fetch(AckRequired, S) -> %% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). ack(SeqIds, S) -> - rabbit_log:info("ack("), - rabbit_log:info("~p,", [SeqIds]), - rabbit_log:info(" ~p) ->", [S]), + rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -456,7 +449,8 @@ ack(SeqIds, S) -> %% -> state()). tx_publish(Txn, Msg, Props, S) -> - rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), + rabbit_log:info( + "tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -482,7 +476,7 @@ tx_publish(Txn, Msg, Props, S) -> %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). tx_ack(Txn, SeqIds, S) -> - rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), + rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -509,7 +503,7 @@ tx_ack(Txn, SeqIds, S) -> %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, S) -> - rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), + rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -540,7 +534,7 @@ tx_rollback(Txn, S) -> tx_commit(Txn, F, PropsF, S) -> rabbit_log:info( - "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), + "tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -566,7 +560,7 @@ tx_commit(Txn, F, PropsF, S) -> %% ([ack()], message_properties_transformer(), state()) -> state()). requeue(SeqIds, PropsF, S) -> - rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), + rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -591,7 +585,7 @@ requeue(SeqIds, PropsF, S) -> %% -spec(len/1 :: (state()) -> non_neg_integer()). len(S) -> - rabbit_log:info("len(~p) ->", [S]), + rabbit_log:info("len(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -610,7 +604,7 @@ len(S) -> %% -spec(is_empty/1 :: (state()) -> boolean()). is_empty(S) -> - rabbit_log:info("is_empty(~p)", [S]), + rabbit_log:info("is_empty(~n ~p)", [S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -676,7 +670,7 @@ handle_pre_hibernate(S) -> S. %% -spec(status/1 :: (state()) -> [{atom(), any()}]). status(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> - rabbit_log:info("status(~p)", [S]), + rabbit_log:info("status(~n ~p)", [S]), {atomic, Result} = mnesia:transaction( fun () -> -- cgit v1.2.1 From ae96773766be1bbe11dafd2875d232a0d5d29844 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 25 Jan 2011 14:27:46 -0800 Subject: Added scaffolding for better M storage in Mnesia --- src/rabbit_mnesia_queue.erl | 134 ++++++++++++++++++++++++++------------------ 1 file changed, 78 insertions(+), 56 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 3b670f13..106f50e8 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -1,4 +1,4 @@ -%% The contents of this file are subject to the Mozilla Public License + %% Version 1.1 (the "License"); you may not use this file except in %% compliance with the License. You may obtain a copy of the License at %% http://www.mozilla.org/MPL/ @@ -76,6 +76,7 @@ { mnesia_tables, % Atoms holding the Mnesia table names q, % The M queue (or nothing) next_seq_id, % The next M's seq_id (or nothing) + next_out_id, % The next M's out id (or nothing) txn_dict % In-progress txn->tx map }). @@ -101,9 +102,10 @@ m % The value: The M }). --record(n_record, % Temporary next_seq_id record in Mnesia +-record(n_record, % next_seq_id & next_out_id record in Mnesia { key, % The key: the atom 'n' - next_seq_id % The Mnesia next_seq_id + next_seq_id, % The Mnesia next_seq_id + next_out_id % The Mnesia next_out_id }). -include("rabbit.hrl"). @@ -122,6 +124,7 @@ -type(s() :: #s { mnesia_tables :: {atom(), atom(), atom()}, q :: maybe(queue()), next_seq_id :: maybe(seq_id()), + next_out_id :: maybe(non_neg_integer()), txn_dict :: dict() }). -type(state() :: s()). @@ -141,7 +144,8 @@ m :: m() }). -type(n_record() :: #n_record { key :: 'n', - next_seq_id :: seq_id() }). + next_seq_id :: seq_id(), + next_out_id :: non_neg_integer() }). -include("rabbit_backing_queue_spec.hrl"). @@ -188,11 +192,14 @@ stop() -> ok. %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) %% -> state()). +%% BUG: Should fsck state, and should drop non-persistent msgs. + +%% BUG: It's unfortunate that this can't all be done in a single +%% Mnesia transaction! + init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~n ~p,~n _, _) ->", [QueueName]), {MnesiaQTable, MnesiaPTable, MnesiaNTable} = mnesia_tables(QueueName), - %% It's unfortunate that tables cannot be created or deleted - %% within an Mnesia transaction! QAttributes = record_info(fields, q_record), case mnesia:create_table( MnesiaQTable, @@ -216,23 +223,29 @@ init(QueueName, _IsDurable, _Recover) -> ok end, NAttributes = record_info(fields, n_record), - case mnesia:create_table( - MnesiaNTable, - [{record_name, 'n_record'}, {attributes, NAttributes}]) - of - {atomic, ok} -> ok; - {aborted, {already_exists, MnesiaNTable}} -> - 'n_record' = mnesia:table_info(MnesiaNTable, record_name), - NAttributes = mnesia:table_info(MnesiaNTable, attributes), - ok - end, + {NextSeqId, NextOutId} = + case mnesia:create_table( + MnesiaNTable, + [{record_name, 'n_record'}, {attributes, NAttributes}]) + of + {atomic, ok} -> {0, 0}; + {aborted, {already_exists, MnesiaNTable}} -> + 'n_record' = mnesia:table_info(MnesiaNTable, record_name), + NAttributes = mnesia:table_info(MnesiaNTable, attributes), + [#n_record { key = 'n', + next_seq_id = NextSeqId0, + next_out_id = NextOutId0 }] = + mnesia:dirty_read(MnesiaNTable, 'n'), + {NextSeqId0, NextOutId0} + end, {atomic, Result} = mnesia:transaction( fun () -> RS = #s { mnesia_tables = {MnesiaQTable, MnesiaPTable, MnesiaNTable}, q = {just, queue:new()}, - next_seq_id = {just, 0}, + next_seq_id = {just, NextSeqId}, + next_out_id = {just, NextOutId}, txn_dict = dict:new() }, transactional_write_state(RS) end), @@ -240,9 +253,10 @@ init(QueueName, _IsDurable, _Recover) -> Result. %%---------------------------------------------------------------------------- -%% terminate/1 is called on queue shutdown when the queue isn't being -%% deleted. This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% terminate/1 is called when the queue is terminating, to delete all +%% of its enqueued msgs. This function creates an Mnesia transaction +%% to run in, and therefore may not be called from inside another +%% Mnesia transaction. %% %% -spec(terminate/1 :: (state()) -> state()). @@ -260,18 +274,13 @@ terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> Result. %%---------------------------------------------------------------------------- -%% delete_and_terminate/1 is called when the queue is terminating and -%% needs to delete all its content. The only difference between purge -%% and delete is that delete also needs to delete everything that's -%% been delivered and not ack'd. This function creates an Mnesia -%% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. +%% delete_and_terminate/1 is called when the queue is terminating, to +%% delete all of its enqueued msgs and pending acks. This function +%% creates an Mnesia transaction to run in, and therefore may not be +%% called from inside another Mnesia transaction. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). -%% the only difference between purge and delete is that delete also -%% needs to delete everything that's been delivered and not ack'd. - delete_and_terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = @@ -286,10 +295,10 @@ delete_and_terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> Result. %%---------------------------------------------------------------------------- -%% purge/1 removes all msgs in the queue, but not msgs that have been -%% fetched and are pending acks. This function creates an Mnesia -%% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. +%% purge/1 does the same as terminate/1, but also returns the count of +%% msgs purged. This function creates an Mnesia transaction to run in, +%% and therefore may not be called from inside another Mnesia +%% transaction. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). @@ -330,13 +339,12 @@ publish(Msg, Props, S) -> Result. %%---------------------------------------------------------------------------- -%% publish_delivered/4 is called for msgs that have already been -%% passed straight out to a client. The queue will be empty for these -%% calls (saving the round trip through the backing queue). All msgs -%% are silently treated as non-persistent. This function creates an -%% Mnesia transaction to run in, and therefore may not be called from -%% inside another Mnesia transaction. All msgs are silently treated as -%% persistent. +%% publish_delivered/4 is called for any msg that has already been +%% passed straight out to a client because the queue is empty. All +%% msgs are silently treated as persistent. We update all state (e.g., +%% next_seq_id) as if we had in fact handled the msg. This function +%% creates an Mnesia transaction to run in, and therefore may not be +%% called from inside another Mnesia transaction. %% %% -spec(publish_delivered/4 :: %% (ack_required(), @@ -356,11 +364,13 @@ publish_delivered(true, Msg, Props, S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = #s { next_seq_id = {just, SeqId} } = + S1 = #s { next_seq_id = {just, SeqId}, + next_out_id = {just, OutId}} = transactional_read_state(S), RS = (record_pending_ack_state( (m(Msg, SeqId, Props)) #m { is_delivered = true }, S1)) - #s { next_seq_id = {just, SeqId + 1} }, + #s { next_seq_id = {just, SeqId + 1}, + next_out_id = {just, OutId + 1}}, {SeqId, transactional_write_state(RS)} end), rabbit_log:info(" -> ~p", [Result]), @@ -684,7 +694,7 @@ status(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> %%---------------------------------------------------------------------------- %% Monadic helper functions for inside transactions. All Ss have -%% non-nothing qs and next_seq_ids. +%% non-nothing qs and next_seq_ids and next_out_ids. %% ---------------------------------------------------------------------------- -spec transactional_read_state(s()) -> s(). @@ -692,23 +702,31 @@ status(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> transactional_read_state( S = #s { mnesia_tables = {MnesiaQTable, _, MnesiaNTable}, q = nothing, - next_seq_id = nothing }) -> + next_seq_id = nothing, + next_out_id = nothing}) -> [#q_record { key = 'q', q = Q }] = mnesia:read(MnesiaQTable, 'q', 'read'), - [#n_record { key = 'n', next_seq_id = NextSeqId }] = + [#n_record {key = 'n', + next_seq_id = NextSeqId, + next_out_id = NextOutId }] = mnesia:read(MnesiaNTable, 'n', 'read'), - S #s { q = {just, Q}, next_seq_id = {just, NextSeqId} }. + S #s { q = {just, Q}, + next_seq_id = {just, NextSeqId}, + next_out_id = {just, NextOutId} }. -spec transactional_write_state(s()) -> s(). transactional_write_state(S = #s { mnesia_tables = {MnesiaQTable, _, MnesiaNTable}, q = {just, Q}, - next_seq_id = {just, NextSeqId} }) -> + next_seq_id = {just, NextSeqId}, + next_out_id = {just, NextOutId} }) -> ok = mnesia:write(MnesiaQTable, #q_record { key = 'q', q = Q }, 'write'), ok = mnesia:write(MnesiaNTable, - #n_record { key = 'n', next_seq_id = NextSeqId }, + #n_record { key = 'n', + next_seq_id = NextSeqId, + next_out_id = NextOutId }, 'write'), - S #s { q = nothing, next_seq_id = nothing }. + S #s { q = nothing, next_seq_id = nothing, next_out_id = nothing }. -spec record_pending_ack_state(m(), s()) -> s(). @@ -769,7 +787,7 @@ internal_dropwhile(Pred, S) -> true -> {_, Si1} = internal_fetch(false, M, Si), internal_dropwhile(Pred, Si1); - false -> {ok, Si #s {q = {just,queue:in_r(M, Q)} }} + false -> {ok, Si #s {q = {just, queue:in_r(M, Q)} }} end end, S). @@ -801,10 +819,6 @@ internal_clear_table(Table) -> internal_clear_table(Table) end. -%%---------------------------------------------------------------------------- -%% Pure helper functions. All Ss have non-nothing qs and next_seq_ids. -%% ---------------------------------------------------------------------------- - -spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. internal_queue_out(F, S = #s { q = {just, Q} }) -> @@ -813,6 +827,11 @@ internal_queue_out(F, S = #s { q = {just, Q} }) -> {{value, M}, Qa} -> F(M, S #s { q = {just, Qa} }) end. +%%---------------------------------------------------------------------------- +%% Pure helper functions. All Ss have non-nothing qs and next_seq_ids +%% and next_out_ids. +%% ---------------------------------------------------------------------------- + -spec m(rabbit_types:basic_message(), seq_id(), rabbit_types:message_properties()) -> @@ -848,12 +867,15 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> publish_state(Msg, Props, IsDelivered, - S = #s { q = {just, Q}, next_seq_id = {just, SeqId} }) -> + S = #s { q = {just, Q}, + next_seq_id = {just, SeqId}, + next_out_id = {just, OutId} }) -> S #s { q = {just, queue:in( (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q)}, - next_seq_id = {just, SeqId + 1} }. + next_seq_id = {just, SeqId + 1}, + next_out_id = {just, OutId + 1} }. -spec m_guid(m()) -> rabbit_guid:guid(). -- cgit v1.2.1 From 3a84dfd9077dc999473ce9545bf516c3fdf83c29 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 25 Jan 2011 17:41:03 -0800 Subject: More scaffolding for queue storage in Mnesia --- src/rabbit_mnesia_queue.erl | 170 ++++++++++++++++++++------------------------ 1 file changed, 77 insertions(+), 93 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 106f50e8..29ce5a1c 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -1,4 +1,3 @@ - %% Version 1.1 (the "License"); you may not use this file except in %% compliance with the License. You may obtain a copy of the License at %% http://www.mozilla.org/MPL/ @@ -48,12 +47,12 @@ %%---------------------------------------------------------------------------- %% This module wraps msgs into M records for internal use, including -%% additional information. Pending acks are also recorded as Ms, in -%% Mnesia. +%% additional information. Pending acks are also recorded as Ms. Msgs +%% and pending acks are both stored in Mnesia. %% %% All queues are durable in this version, and all msgs are treated as -%% persistent. (This will no doubt break some tests for non-durable -%% queues.) +%% persistent. (This will break some clients and some tests for +%% non-durable queues.) %% ---------------------------------------------------------------------------- %% BUG: The rabbit_backing_queue_spec behaviour needs improvement. For @@ -66,17 +65,21 @@ %% BUG: Need to store each message in a separate row. -%% BUG: Need to think about recovering pending acks +%% BUG: Need to think about recovering pending acks. + +%% BUG: Should not use mnesia:all_keys to count entries. -%% BUG: Should not use mnesia:all_keys to count entries +%% BUG: P records do not need a separate seq_id. -behaviour(rabbit_backing_queue). -record(s, % The in-RAM queue state - { mnesia_tables, % Atoms holding the Mnesia table names - q, % The M queue (or nothing) - next_seq_id, % The next M's seq_id (or nothing) - next_out_id, % The next M's out id (or nothing) + { mnesia_q_table, % The Mnesia Q table name + mnesia_p_table, % The Mnesia P table name + mnesia_n_table, % The Mnesia N table name + q, % The M queue + next_seq_id, % The next M's seq_id + next_out_id, % The next M's out id txn_dict % In-progress txn->tx map }). @@ -116,15 +119,15 @@ %% -ifdef(use_specs). --type(maybe(T) :: nothing | {just, T}). - -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(s() :: #s { mnesia_tables :: {atom(), atom(), atom()}, - q :: maybe(queue()), - next_seq_id :: maybe(seq_id()), - next_out_id :: maybe(non_neg_integer()), +-type(s() :: #s { mnesia_q_table :: atom(), + mnesia_p_table :: atom(), + mnesia_n_table :: atom(), + q :: queue(), + next_seq_id :: seq_id(), + next_out_id :: non_neg_integer(), txn_dict :: dict() }). -type(state() :: s()). @@ -224,28 +227,29 @@ init(QueueName, _IsDurable, _Recover) -> end, NAttributes = record_info(fields, n_record), {NextSeqId, NextOutId} = - case mnesia:create_table( - MnesiaNTable, - [{record_name, 'n_record'}, {attributes, NAttributes}]) - of - {atomic, ok} -> {0, 0}; - {aborted, {already_exists, MnesiaNTable}} -> - 'n_record' = mnesia:table_info(MnesiaNTable, record_name), - NAttributes = mnesia:table_info(MnesiaNTable, attributes), - [#n_record { key = 'n', - next_seq_id = NextSeqId0, - next_out_id = NextOutId0 }] = - mnesia:dirty_read(MnesiaNTable, 'n'), - {NextSeqId0, NextOutId0} - end, + case mnesia:create_table( + MnesiaNTable, + [{record_name, 'n_record'}, {attributes, NAttributes}]) + of + {atomic, ok} -> {0, 0}; + {aborted, {already_exists, MnesiaNTable}} -> + 'n_record' = mnesia:table_info(MnesiaNTable, record_name), + NAttributes = mnesia:table_info(MnesiaNTable, attributes), + [#n_record { key = 'n', + next_seq_id = NextSeqId0, + next_out_id = NextOutId0 }] = + mnesia:dirty_read(MnesiaNTable, 'n'), + {NextSeqId0, NextOutId0} + end, {atomic, Result} = mnesia:transaction( fun () -> - RS = #s { mnesia_tables = - {MnesiaQTable, MnesiaPTable, MnesiaNTable}, - q = {just, queue:new()}, - next_seq_id = {just, NextSeqId}, - next_out_id = {just, NextOutId}, + RS = #s { mnesia_q_table = MnesiaQTable, + mnesia_p_table = MnesiaPTable, + mnesia_n_table = MnesiaNTable, + q = queue:new(), + next_seq_id = NextSeqId, + next_out_id = NextOutId, txn_dict = dict:new() }, transactional_write_state(RS) end), @@ -260,7 +264,7 @@ init(QueueName, _IsDurable, _Recover) -> %% %% -spec(terminate/1 :: (state()) -> state()). -terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> +terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> rabbit_log:info("terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( @@ -281,14 +285,14 @@ terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). -delete_and_terminate(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> +delete_and_terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> S1 = transactional_read_state(S), internal_clear_table(MnesiaPTable), - RS = S1 #s { q = {just, queue:new()} }, + RS = S1 #s { q = queue:new() }, transactional_write_state(RS) end), rabbit_log:info(" -> ~p", [Result]), @@ -307,8 +311,8 @@ purge(S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = #s { q = {just, Q} } = transactional_read_state(S), - RS = S1 #s { q = {just, queue:new()} }, + S1 = #s { q = Q } = transactional_read_state(S), + RS = S1 #s { q = queue:new() }, {queue:len(Q), transactional_write_state(RS)} end), rabbit_log:info(" -> ~p", [Result]), @@ -317,8 +321,7 @@ purge(S) -> %%---------------------------------------------------------------------------- %% publish/3 publishes a msg. This function creates an Mnesia %% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. All msgs are silently treated as -%% persistent. +%% another Mnesia transaction. %% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), @@ -340,11 +343,10 @@ publish(Msg, Props, S) -> %%---------------------------------------------------------------------------- %% publish_delivered/4 is called for any msg that has already been -%% passed straight out to a client because the queue is empty. All -%% msgs are silently treated as persistent. We update all state (e.g., -%% next_seq_id) as if we had in fact handled the msg. This function -%% creates an Mnesia transaction to run in, and therefore may not be -%% called from inside another Mnesia transaction. +%% passed straight out to a client because the queue is empty. We +%% update all state (e.g., next_seq_id) as if we had in fact handled +%% the msg. This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(publish_delivered/4 :: %% (ack_required(), @@ -364,13 +366,11 @@ publish_delivered(true, Msg, Props, S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = #s { next_seq_id = {just, SeqId}, - next_out_id = {just, OutId}} = + S1 = #s { next_seq_id = SeqId, next_out_id = OutId } = transactional_read_state(S), RS = (record_pending_ack_state( (m(Msg, SeqId, Props)) #m { is_delivered = true }, S1)) - #s { next_seq_id = {just, SeqId + 1}, - next_out_id = {just, OutId + 1}}, + #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }, {SeqId, transactional_write_state(RS)} end), rabbit_log:info(" -> ~p", [Result]), @@ -599,7 +599,7 @@ len(S) -> {atomic, Result} = mnesia:transaction( fun () -> - #s { q = {just, Q} } = transactional_read_state(S), + #s { q = Q } = transactional_read_state(S), queue:len(Q) end), rabbit_log:info(" -> ~p", [Result]), @@ -618,7 +618,7 @@ is_empty(S) -> {atomic, Result} = mnesia:transaction( fun () -> - #s { q = {just, Q} } = transactional_read_state(S), + #s { q = Q } = transactional_read_state(S), queue:is_empty(Q) end), rabbit_log:info(" -> ~p", [Result]), @@ -679,12 +679,12 @@ handle_pre_hibernate(S) -> S. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> +status(S = #s { mnesia_p_table = MnesiaPTable }) -> rabbit_log:info("status(~n ~p)", [S]), {atomic, Result} = mnesia:transaction( fun () -> - #s { q = {just, Q}, next_seq_id = {just, NextSeqId} } = + #s { q = Q, next_seq_id = NextSeqId } = transactional_read_state(S), LP = length(mnesia:all_keys(MnesiaPTable)), [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, LP}] @@ -693,45 +693,33 @@ status(S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> Result. %%---------------------------------------------------------------------------- -%% Monadic helper functions for inside transactions. All Ss have -%% non-nothing qs and next_seq_ids and next_out_ids. +%% Monadic helper functions for inside transactions. %% ---------------------------------------------------------------------------- -spec transactional_read_state(s()) -> s(). -transactional_read_state( - S = #s { mnesia_tables = {MnesiaQTable, _, MnesiaNTable}, - q = nothing, - next_seq_id = nothing, - next_out_id = nothing}) -> - [#q_record { key = 'q', q = Q }] = mnesia:read(MnesiaQTable, 'q', 'read'), - [#n_record {key = 'n', - next_seq_id = NextSeqId, - next_out_id = NextOutId }] = - mnesia:read(MnesiaNTable, 'n', 'read'), - S #s { q = {just, Q}, - next_seq_id = {just, NextSeqId}, - next_out_id = {just, NextOutId} }. +transactional_read_state(S) -> S. -spec transactional_write_state(s()) -> s(). transactional_write_state(S = #s { - mnesia_tables = {MnesiaQTable, _, MnesiaNTable}, - q = {just, Q}, - next_seq_id = {just, NextSeqId}, - next_out_id = {just, NextOutId} }) -> + mnesia_q_table = MnesiaQTable, + mnesia_n_table = MnesiaNTable, + q = Q, + next_seq_id = NextSeqId, + next_out_id = NextOutId }) -> ok = mnesia:write(MnesiaQTable, #q_record { key = 'q', q = Q }, 'write'), ok = mnesia:write(MnesiaNTable, #n_record { key = 'n', next_seq_id = NextSeqId, next_out_id = NextOutId }, 'write'), - S #s { q = nothing, next_seq_id = nothing, next_out_id = nothing }. + S. -spec record_pending_ack_state(m(), s()) -> s(). record_pending_ack_state(M = #m { seq_id = SeqId }, - S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> + S = #s { mnesia_p_table = MnesiaPTable }) -> mnesia:write(MnesiaPTable, #p_record { seq_id = SeqId, m = M }, 'write'), S. @@ -740,7 +728,7 @@ record_pending_ack_state(M = #m { seq_id = SeqId }, s()) -> {[rabbit_guid:guid()], s()}. -internal_ack3(F, SeqIds, S = #s { mnesia_tables = {_, MnesiaPTable, _} }) -> +internal_ack3(F, SeqIds, S = #s { mnesia_p_table = MnesiaPTable }) -> {AllGuids, S1} = lists:foldl( fun (SeqId, {Acc, Si}) -> @@ -760,7 +748,7 @@ internal_fetch(AckRequired, seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, - S = #s { q = {just, Q} }) -> + S = #s { q = Q }) -> {Ack, S1} = case AckRequired of true -> @@ -782,12 +770,12 @@ internal_ack(SeqIds, S) -> internal_dropwhile(Pred, S) -> internal_queue_out( - fun (M = #m { props = Props }, Si = #s { q = {just, Q} }) -> + fun (M = #m { props = Props }, Si = #s { q = Q }) -> case Pred(Props) of true -> {_, Si1} = internal_fetch(false, M, Si), internal_dropwhile(Pred, Si1); - false -> {ok, Si #s {q = {just, queue:in_r(M, Q)} }} + false -> {ok, Si #s {q = queue:in_r(M, Q) }} end end, S). @@ -821,15 +809,14 @@ internal_clear_table(Table) -> -spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. -internal_queue_out(F, S = #s { q = {just, Q} }) -> +internal_queue_out(F, S = #s { q = Q }) -> case queue:out(Q) of {empty, _} -> {empty, S}; - {{value, M}, Qa} -> F(M, S #s { q = {just, Qa} }) + {{value, M}, Qa} -> F(M, S #s { q = Qa }) end. %%---------------------------------------------------------------------------- -%% Pure helper functions. All Ss have non-nothing qs and next_seq_ids -%% and next_out_ids. +%% Pure helper functions. %% ---------------------------------------------------------------------------- -spec m(rabbit_types:basic_message(), @@ -867,15 +854,12 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> publish_state(Msg, Props, IsDelivered, - S = #s { q = {just, Q}, - next_seq_id = {just, SeqId}, - next_out_id = {just, OutId} }) -> + S = #s { q = Q, next_seq_id = SeqId, next_out_id = OutId }) -> S #s { - q = {just, - queue:in( - (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q)}, - next_seq_id = {just, SeqId + 1}, - next_out_id = {just, OutId + 1} }. + q = queue:in( + (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), + next_seq_id = SeqId + 1, + next_out_id = OutId + 1 }. -spec m_guid(m()) -> rabbit_guid:guid(). -- cgit v1.2.1 From 71a2f5d5abdc344821ecdc70d8b4da4fa3ab31bc Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 25 Jan 2011 18:25:31 -0800 Subject: More scaffolding. --- src/rabbit_mnesia_queue.erl | 123 ++++++++++++++++++-------------------------- 1 file changed, 49 insertions(+), 74 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 29ce5a1c..1b341bf0 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -251,7 +251,7 @@ init(QueueName, _IsDurable, _Recover) -> next_seq_id = NextSeqId, next_out_id = NextOutId, txn_dict = dict:new() }, - transactional_write_state(RS) + transactional_save_state(RS) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -269,10 +269,9 @@ terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), internal_clear_table(MnesiaPTable), - RS = S1, - transactional_write_state(RS) + RS = S, + transactional_save_state(RS) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -290,10 +289,9 @@ delete_and_terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), internal_clear_table(MnesiaPTable), - RS = S1 #s { q = queue:new() }, - transactional_write_state(RS) + RS = S #s { q = queue:new() }, + transactional_save_state(RS) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -306,14 +304,13 @@ delete_and_terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(S) -> +purge(S = #s { q = Q }) -> rabbit_log:info("purge(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> - S1 = #s { q = Q } = transactional_read_state(S), - RS = S1 #s { q = queue:new() }, - {queue:len(Q), transactional_write_state(RS)} + RS = S #s { q = queue:new() }, + {queue:len(Q), transactional_save_state(RS)} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -334,9 +331,8 @@ publish(Msg, Props, S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), - RS = publish_state(Msg, Props, false, S1), - transactional_write_state(RS) + RS = publish_state(Msg, Props, false, S), + transactional_save_state(RS) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -360,18 +356,19 @@ publish_delivered(false, _, _, S) -> Result = {blank_ack, S}, rabbit_log:info(" -> ~p", [Result]), Result; -publish_delivered(true, Msg, Props, S) -> +publish_delivered(true, + Msg, + Props, + S = #s { next_seq_id = SeqId, next_out_id = OutId }) -> rabbit_log:info( "publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), {atomic, Result} = mnesia:transaction( fun () -> - S1 = #s { next_seq_id = SeqId, next_out_id = OutId } = - transactional_read_state(S), RS = (record_pending_ack_state( - (m(Msg, SeqId, Props)) #m { is_delivered = true }, S1)) + (m(Msg, SeqId, Props)) #m { is_delivered = true }, S)) #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }, - {SeqId, transactional_write_state(RS)} + {SeqId, transactional_save_state(RS)} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -392,10 +389,9 @@ dropwhile(Pred, S) -> {atomic, {_, Result}} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), {Atom, RS} = - internal_dropwhile(Pred, S1), - {Atom, transactional_write_state(RS)} + internal_dropwhile(Pred, S), + {Atom, transactional_save_state(RS)} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -413,12 +409,11 @@ fetch(AckRequired, S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), {DR, RS} = internal_queue_out( fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, - S1), - {DR, transactional_write_state(RS)} + S), + {DR, transactional_save_state(RS)} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -437,9 +432,8 @@ ack(SeqIds, S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), - {Guids, RS} = internal_ack(SeqIds, S1), - {Guids, transactional_write_state(RS)} + {Guids, RS} = internal_ack(SeqIds, S), + {Guids, transactional_save_state(RS)} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -464,12 +458,11 @@ tx_publish(Txn, Msg, Props, S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), - Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S1), + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), RS = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, - S1), - transactional_write_state(RS) + S), + transactional_save_state(RS) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -490,13 +483,12 @@ tx_ack(Txn, SeqIds, S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), - Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S1), + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), RS = store_tx(Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, - S1), - transactional_write_state(RS) + S), + transactional_save_state(RS) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -517,10 +509,9 @@ tx_rollback(Txn, S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), - #tx { to_ack = SeqIds } = lookup_tx(Txn, S1), + #tx { to_ack = SeqIds } = lookup_tx(Txn, S), RS = erase_tx(Txn, S), - {SeqIds, transactional_write_state(RS)} + {SeqIds, transactional_save_state(RS)} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -548,11 +539,10 @@ tx_commit(Txn, F, PropsF, S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), - #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S1), + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), RS = - tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S1)), - {SeqIds, transactional_write_state(RS)} + tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S)), + {SeqIds, transactional_save_state(RS)} end), F(), rabbit_log:info(" -> ~p", [Result]), @@ -574,15 +564,14 @@ requeue(SeqIds, PropsF, S) -> {atomic, Result} = mnesia:transaction( fun () -> - S1 = transactional_read_state(S), {_, RS} = internal_ack3( fun (#m { msg = Msg, props = Props }, Si) -> publish_state(Msg, PropsF(Props), true, Si) end, SeqIds, - S1), - transactional_write_state(RS) + S), + transactional_save_state(RS) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -594,14 +583,9 @@ requeue(SeqIds, PropsF, S) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(S) -> +len(S = #s { q = Q }) -> rabbit_log:info("len(~n ~p) ->", [S]), - {atomic, Result} = - mnesia:transaction( - fun () -> - #s { q = Q } = transactional_read_state(S), - queue:len(Q) - end), + {atomic, Result} = mnesia:transaction(fun () -> queue:len(Q) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -613,14 +597,9 @@ len(S) -> %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(S) -> +is_empty(S = #s { q = Q }) -> rabbit_log:info("is_empty(~n ~p)", [S]), - {atomic, Result} = - mnesia:transaction( - fun () -> - #s { q = Q } = transactional_read_state(S), - queue:is_empty(Q) - end), + {atomic, Result} = mnesia:transaction(fun () -> queue:is_empty(Q) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -679,13 +658,13 @@ handle_pre_hibernate(S) -> S. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(S = #s { mnesia_p_table = MnesiaPTable }) -> +status(S = #s { mnesia_p_table = MnesiaPTable, + q = Q, + next_seq_id = NextSeqId }) -> rabbit_log:info("status(~n ~p)", [S]), {atomic, Result} = mnesia:transaction( fun () -> - #s { q = Q, next_seq_id = NextSeqId } = - transactional_read_state(S), LP = length(mnesia:all_keys(MnesiaPTable)), [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, LP}] end), @@ -696,18 +675,14 @@ status(S = #s { mnesia_p_table = MnesiaPTable }) -> %% Monadic helper functions for inside transactions. %% ---------------------------------------------------------------------------- --spec transactional_read_state(s()) -> s(). - -transactional_read_state(S) -> S. +-spec transactional_save_state(s()) -> s(). --spec transactional_write_state(s()) -> s(). - -transactional_write_state(S = #s { - mnesia_q_table = MnesiaQTable, - mnesia_n_table = MnesiaNTable, - q = Q, - next_seq_id = NextSeqId, - next_out_id = NextOutId }) -> +transactional_save_state(S = #s { + mnesia_q_table = MnesiaQTable, + mnesia_n_table = MnesiaNTable, + q = Q, + next_seq_id = NextSeqId, + next_out_id = NextOutId }) -> ok = mnesia:write(MnesiaQTable, #q_record { key = 'q', q = Q }, 'write'), ok = mnesia:write(MnesiaNTable, #n_record { key = 'n', -- cgit v1.2.1 From b017182a10ce0ac617067d03ec2378f6ce609a44 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 25 Jan 2011 19:17:10 -0800 Subject: More scaffolding. --- src/rabbit_mnesia_queue.erl | 204 +++++++++++++++++++++++--------------------- 1 file changed, 108 insertions(+), 96 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 1b341bf0..0141fbac 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -77,7 +77,6 @@ { mnesia_q_table, % The Mnesia Q table name mnesia_p_table, % The Mnesia P table name mnesia_n_table, % The Mnesia N table name - q, % The M queue next_seq_id, % The next M's seq_id next_out_id, % The next M's out id txn_dict % In-progress txn->tx map @@ -125,7 +124,6 @@ -type(s() :: #s { mnesia_q_table :: atom(), mnesia_p_table :: atom(), mnesia_n_table :: atom(), - q :: queue(), next_seq_id :: seq_id(), next_out_id :: non_neg_integer(), txn_dict :: dict() }). @@ -242,17 +240,16 @@ init(QueueName, _IsDurable, _Recover) -> {NextSeqId0, NextOutId0} end, {atomic, Result} = - mnesia:transaction( - fun () -> - RS = #s { mnesia_q_table = MnesiaQTable, - mnesia_p_table = MnesiaPTable, - mnesia_n_table = MnesiaNTable, - q = queue:new(), - next_seq_id = NextSeqId, - next_out_id = NextOutId, - txn_dict = dict:new() }, - transactional_save_state(RS) - end), + mnesia:transaction(fun () -> + RS = #s { mnesia_q_table = MnesiaQTable, + mnesia_p_table = MnesiaPTable, + mnesia_n_table = MnesiaNTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId, + txn_dict = dict:new() }, + transactional_write_q(queue:new(), RS), + transactional_save_state(RS) + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -267,12 +264,11 @@ init(QueueName, _IsDurable, _Recover) -> terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> rabbit_log:info("terminate(~n ~p) ->", [S]), {atomic, Result} = - mnesia:transaction( - fun () -> - internal_clear_table(MnesiaPTable), - RS = S, - transactional_save_state(RS) - end), + mnesia:transaction(fun () -> + internal_clear_table(MnesiaPTable), + RS = S, + transactional_save_state(RS) + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -287,12 +283,12 @@ terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> delete_and_terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = - mnesia:transaction( - fun () -> - internal_clear_table(MnesiaPTable), - RS = S #s { q = queue:new() }, - transactional_save_state(RS) - end), + mnesia:transaction(fun () -> + internal_clear_table(MnesiaPTable), + RS = S, + transactional_write_q(queue:new(), RS), + transactional_save_state(RS) + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -304,14 +300,15 @@ delete_and_terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(S = #s { q = Q }) -> +purge(S) -> rabbit_log:info("purge(~n ~p) ->", [S]), {atomic, Result} = - mnesia:transaction( - fun () -> - RS = S #s { q = queue:new() }, - {queue:len(Q), transactional_save_state(RS)} - end), + mnesia:transaction(fun () -> + Q = transactional_read_q(S), + RS = S, + transactional_write_q(queue:new(), RS), + {queue:len(Q), transactional_save_state(RS)} + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -329,11 +326,10 @@ purge(S = #s { q = Q }) -> publish(Msg, Props, S) -> rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), {atomic, Result} = - mnesia:transaction( - fun () -> - RS = publish_state(Msg, Props, false, S), - transactional_save_state(RS) - end), + mnesia:transaction(fun () -> + RS = publish_state(Msg, Props, false, S), + transactional_save_state(RS) + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -387,12 +383,10 @@ publish_delivered(true, dropwhile(Pred, S) -> rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), {atomic, {_, Result}} = - mnesia:transaction( - fun () -> - {Atom, RS} = - internal_dropwhile(Pred, S), - {Atom, transactional_save_state(RS)} - end), + mnesia:transaction(fun () -> + {Atom, RS} = internal_dropwhile(Pred, S), + {Atom, transactional_save_state(RS)} + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -430,11 +424,10 @@ fetch(AckRequired, S) -> ack(SeqIds, S) -> rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), {atomic, Result} = - mnesia:transaction( - fun () -> - {Guids, RS} = internal_ack(SeqIds, S), - {Guids, transactional_save_state(RS)} - end), + mnesia:transaction(fun () -> + {Guids, RS} = internal_ack(SeqIds, S), + {Guids, transactional_save_state(RS)} + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -507,12 +500,11 @@ tx_ack(Txn, SeqIds, S) -> tx_rollback(Txn, S) -> rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), {atomic, Result} = - mnesia:transaction( - fun () -> - #tx { to_ack = SeqIds } = lookup_tx(Txn, S), - RS = erase_tx(Txn, S), - {SeqIds, transactional_save_state(RS)} - end), + mnesia:transaction(fun () -> + #tx { to_ack = SeqIds } = lookup_tx(Txn, S), + RS = erase_tx(Txn, S), + {SeqIds, transactional_save_state(RS)} + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -583,9 +575,12 @@ requeue(SeqIds, PropsF, S) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(S = #s { q = Q }) -> +len(S) -> rabbit_log:info("len(~n ~p) ->", [S]), - {atomic, Result} = mnesia:transaction(fun () -> queue:len(Q) end), + {atomic, Result} = mnesia:transaction(fun () -> + Q = transactional_read_q(S), + queue:len(Q) + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -597,9 +592,12 @@ len(S = #s { q = Q }) -> %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(S = #s { q = Q }) -> +is_empty(S) -> rabbit_log:info("is_empty(~n ~p)", [S]), - {atomic, Result} = mnesia:transaction(fun () -> queue:is_empty(Q) end), + {atomic, Result} = mnesia:transaction(fun () -> + Q = transactional_read_q(S), + queue:is_empty(Q) + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -659,13 +657,13 @@ handle_pre_hibernate(S) -> S. %% -spec(status/1 :: (state()) -> [{atom(), any()}]). status(S = #s { mnesia_p_table = MnesiaPTable, - q = Q, next_seq_id = NextSeqId }) -> rabbit_log:info("status(~n ~p)", [S]), {atomic, Result} = mnesia:transaction( fun () -> LP = length(mnesia:all_keys(MnesiaPTable)), + Q = transactional_read_q(S), [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, LP}] end), rabbit_log:info(" -> ~p", [Result]), @@ -680,9 +678,9 @@ status(S = #s { mnesia_p_table = MnesiaPTable, transactional_save_state(S = #s { mnesia_q_table = MnesiaQTable, mnesia_n_table = MnesiaNTable, - q = Q, next_seq_id = NextSeqId, next_out_id = NextOutId }) -> + Q = transactional_read_q(S), ok = mnesia:write(MnesiaQTable, #q_record { key = 'q', q = Q }, 'write'), ok = mnesia:write(MnesiaNTable, #n_record { key = 'n', @@ -705,15 +703,14 @@ record_pending_ack_state(M = #m { seq_id = SeqId }, internal_ack3(F, SeqIds, S = #s { mnesia_p_table = MnesiaPTable }) -> {AllGuids, S1} = - lists:foldl( - fun (SeqId, {Acc, Si}) -> - [#p_record { m = M }] = - mnesia:read(MnesiaPTable, SeqId, 'read'), - mnesia:delete(MnesiaPTable, SeqId, 'write'), - {[m_guid(M) | Acc], F(M, Si)} - end, - {[], S}, - SeqIds), + lists:foldl(fun (SeqId, {Acc, Si}) -> + [#p_record { m = M }] = + mnesia:read(MnesiaPTable, SeqId, 'read'), + mnesia:delete(MnesiaPTable, SeqId, 'write'), + {[m_guid(M) | Acc], F(M, Si)} + end, + {[], S}, + SeqIds), {lists:reverse(AllGuids), S1}. -spec internal_fetch/3 :: (ack_required(), m(), s()) -> {fetch_result(), s()}. @@ -723,21 +720,20 @@ internal_fetch(AckRequired, seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, - S = #s { q = Q }) -> + S) -> + Q = transactional_read_q(S), {Ack, S1} = case AckRequired of true -> {SeqId, - record_pending_ack_state( - M #m { is_delivered = true }, S)}; + record_pending_ack_state(M #m { is_delivered = true }, S)}; false -> {blank_ack, S} end, {{Msg, IsDelivered, Ack, queue:len(Q)}, S1}. -spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). -internal_ack(SeqIds, S) -> - internal_ack3(fun (_, Si) -> Si end, SeqIds, S). +internal_ack(SeqIds, S) -> internal_ack3(fun (_, Si) -> Si end, SeqIds, S). -spec(internal_dropwhile/2 :: (fun ((rabbit_types:message_properties()) -> boolean()), s()) @@ -745,12 +741,14 @@ internal_ack(SeqIds, S) -> internal_dropwhile(Pred, S) -> internal_queue_out( - fun (M = #m { props = Props }, Si = #s { q = Q }) -> + fun (M = #m { props = Props }, Si) -> case Pred(Props) of - true -> - {_, Si1} = internal_fetch(false, M, Si), - internal_dropwhile(Pred, Si1); - false -> {ok, Si #s {q = queue:in_r(M, Q) }} + true -> {_, Si1} = internal_fetch(false, M, Si), + internal_dropwhile(Pred, Si1); + false -> Q = transactional_read_q(Si), + Q1 = queue:in_r(M, Q), + transactional_write_q(Q1, Si), + {ok, Si} end end, S). @@ -784,12 +782,42 @@ internal_clear_table(Table) -> -spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. -internal_queue_out(F, S = #s { q = Q }) -> +internal_queue_out(F, S) -> + Q = transactional_read_q(S), case queue:out(Q) of {empty, _} -> {empty, S}; - {{value, M}, Qa} -> F(M, S #s { q = Qa }) + {{value, M}, Qa} -> transactional_write_q(Qa, S), + F(M, S) end. +-spec publish_state(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + s()) -> + s(). + +publish_state(Msg, + Props, + IsDelivered, + S = #s { next_seq_id = SeqId, next_out_id = OutId }) -> + Q = transactional_read_q(S), + Q1 = queue:in( + (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), + transactional_write_q(Q1, S), + S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. + +-spec transactional_read_q(s()) -> queue(). + +transactional_read_q(#s { mnesia_q_table = MnesiaQTable }) -> + [#q_record { key = 'q', q = Q }] = mnesia:read(MnesiaQTable, 'q', 'read'), + Q. + +-spec transactional_write_q(queue(), s()) -> ok. + +transactional_write_q(Q, #s { mnesia_q_table = MnesiaQTable }) -> + mnesia:write(MnesiaQTable, #q_record { key = 'q', q = Q }, 'write'), + ok. + %%---------------------------------------------------------------------------- %% Pure helper functions. %% ---------------------------------------------------------------------------- @@ -820,22 +848,6 @@ store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> S #s { txn_dict = dict:erase(Txn, TxnDict) }. --spec publish_state(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - s()) -> - s(). - -publish_state(Msg, - Props, - IsDelivered, - S = #s { q = Q, next_seq_id = SeqId, next_out_id = OutId }) -> - S #s { - q = queue:in( - (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), - next_seq_id = SeqId + 1, - next_out_id = OutId + 1 }. - -spec m_guid(m()) -> rabbit_guid:guid(). m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. -- cgit v1.2.1 From 2ef0814c63e6dd5855b2c240edee429a9ae72538 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 25 Jan 2011 20:03:48 -0800 Subject: All messages not stored in individual Mnesia records. Passes all tests except those depending on durability and persistence semantics. --- src/rabbit_mnesia_queue.erl | 118 ++++++++++++++++++++------------------------ 1 file changed, 54 insertions(+), 64 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 0141fbac..523a6edd 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -94,12 +94,12 @@ to_ack % List of seq_ids to ack }). --record(q_record, % Temporary whole-queue record in Mnesia - { key, % The key: the atom 'q' - q % The M queue +-record(q_record, % Q records in Mnesia + { out_id, % The key: The out_id + m % The value: The M }). --record(p_record, % P record in Mnesia +-record(p_record, % P records in Mnesia { seq_id, % The key: The seq_id m % The value: The M }). @@ -138,8 +138,8 @@ rabbit_types:message_properties()}], to_ack :: [seq_id()] }). --type(q_record() :: #q_record { key :: 'q', - q :: queue() }). +-type(q_record() :: #q_record { out_id :: non_neg_integer(), + m :: m() }). -type(p_record() :: #p_record { seq_id :: seq_id(), m :: m() }). @@ -204,7 +204,9 @@ init(QueueName, _IsDurable, _Recover) -> QAttributes = record_info(fields, q_record), case mnesia:create_table( MnesiaQTable, - [{record_name, 'q_record'}, {attributes, QAttributes}]) + [{record_name, 'q_record'}, + {attributes, QAttributes}, + {type, ordered_set}]) of {atomic, ok} -> ok; {aborted, {already_exists, MnesiaQTable}} -> @@ -247,7 +249,6 @@ init(QueueName, _IsDurable, _Recover) -> next_seq_id = NextSeqId, next_out_id = NextOutId, txn_dict = dict:new() }, - transactional_write_q(queue:new(), RS), transactional_save_state(RS) end), rabbit_log:info(" -> ~p", [Result]), @@ -280,13 +281,14 @@ terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). -delete_and_terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> +delete_and_terminate(S = #s { mnesia_q_table = MnesiaQTable, + mnesia_p_table = MnesiaPTable }) -> rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> internal_clear_table(MnesiaPTable), + internal_clear_table(MnesiaQTable), RS = S, - transactional_write_q(queue:new(), RS), transactional_save_state(RS) end), rabbit_log:info(" -> ~p", [Result]), @@ -300,14 +302,14 @@ delete_and_terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(S) -> +purge(S = #s { mnesia_q_table = MnesiaQTable }) -> rabbit_log:info("purge(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> - Q = transactional_read_q(S), + LQ = length(mnesia:all_keys(MnesiaQTable)), + internal_clear_table(MnesiaQTable), RS = S, - transactional_write_q(queue:new(), RS), - {queue:len(Q), transactional_save_state(RS)} + {LQ, transactional_save_state(RS)} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -575,12 +577,13 @@ requeue(SeqIds, PropsF, S) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(S) -> +len(S = #s { mnesia_q_table = MnesiaQTable }) -> rabbit_log:info("len(~n ~p) ->", [S]), - {atomic, Result} = mnesia:transaction(fun () -> - Q = transactional_read_q(S), - queue:len(Q) - end), + {atomic, Result} = mnesia:transaction( + fun () -> + LQ = length(mnesia:all_keys(MnesiaQTable)), + LQ + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -592,12 +595,13 @@ len(S) -> %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(S) -> +is_empty(S = #s { mnesia_q_table = MnesiaQTable }) -> rabbit_log:info("is_empty(~n ~p)", [S]), - {atomic, Result} = mnesia:transaction(fun () -> - Q = transactional_read_q(S), - queue:is_empty(Q) - end), + {atomic, Result} = mnesia:transaction( + fun () -> + LQ = length(mnesia:all_keys(MnesiaQTable)), + LQ == 0 + end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -656,15 +660,16 @@ handle_pre_hibernate(S) -> S. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(S = #s { mnesia_p_table = MnesiaPTable, +status(S = #s { mnesia_q_table = MnesiaQTable, + mnesia_p_table = MnesiaPTable, next_seq_id = NextSeqId }) -> rabbit_log:info("status(~n ~p)", [S]), {atomic, Result} = mnesia:transaction( fun () -> + LQ = length(mnesia:all_keys(MnesiaQTable)), LP = length(mnesia:all_keys(MnesiaPTable)), - Q = transactional_read_q(S), - [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, LP}] + [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -675,13 +680,9 @@ status(S = #s { mnesia_p_table = MnesiaPTable, -spec transactional_save_state(s()) -> s(). -transactional_save_state(S = #s { - mnesia_q_table = MnesiaQTable, - mnesia_n_table = MnesiaNTable, - next_seq_id = NextSeqId, - next_out_id = NextOutId }) -> - Q = transactional_read_q(S), - ok = mnesia:write(MnesiaQTable, #q_record { key = 'q', q = Q }, 'write'), +transactional_save_state(S = #s { mnesia_n_table = MnesiaNTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId }) -> ok = mnesia:write(MnesiaNTable, #n_record { key = 'n', next_seq_id = NextSeqId, @@ -720,8 +721,8 @@ internal_fetch(AckRequired, seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, - S) -> - Q = transactional_read_q(S), + S = #s { mnesia_q_table = MnesiaQTable }) -> + LQ = length(mnesia:all_keys(MnesiaQTable)), {Ack, S1} = case AckRequired of true -> @@ -729,7 +730,7 @@ internal_fetch(AckRequired, record_pending_ack_state(M #m { is_delivered = true }, S)}; false -> {blank_ack, S} end, - {{Msg, IsDelivered, Ack, queue:len(Q)}, S1}. + {{Msg, IsDelivered, Ack, LQ}, S1}. -spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). @@ -739,15 +740,15 @@ internal_ack(SeqIds, S) -> internal_ack3(fun (_, Si) -> Si end, SeqIds, S). (fun ((rabbit_types:message_properties()) -> boolean()), s()) -> {empty | ok, s()}). -internal_dropwhile(Pred, S) -> +internal_dropwhile(Pred, S = #s { mnesia_q_table = MnesiaQTable }) -> internal_queue_out( fun (M = #m { props = Props }, Si) -> case Pred(Props) of true -> {_, Si1} = internal_fetch(false, M, Si), internal_dropwhile(Pred, Si1); - false -> Q = transactional_read_q(Si), - Q1 = queue:in_r(M, Q), - transactional_write_q(Q1, Si), + false -> mnesia:write(MnesiaQTable, + #q_record { out_id = 0, m = M }, + 'write'), {ok, Si} end end, @@ -782,12 +783,13 @@ internal_clear_table(Table) -> -spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. -internal_queue_out(F, S) -> - Q = transactional_read_q(S), - case queue:out(Q) of - {empty, _} -> {empty, S}; - {{value, M}, Qa} -> transactional_write_q(Qa, S), - F(M, S) +internal_queue_out(F, S = #s { mnesia_q_table = MnesiaQTable }) -> + case mnesia:first(MnesiaQTable) of + '$end_of_table' -> {empty, S}; + OutId -> [#q_record { out_id = OutId, m = M }] = + mnesia:read(MnesiaQTable, OutId, 'read'), + mnesia:delete(MnesiaQTable, OutId, 'write'), + F(M, S) end. -spec publish_state(rabbit_types:basic_message(), @@ -799,25 +801,13 @@ internal_queue_out(F, S) -> publish_state(Msg, Props, IsDelivered, - S = #s { next_seq_id = SeqId, next_out_id = OutId }) -> - Q = transactional_read_q(S), - Q1 = queue:in( - (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), - transactional_write_q(Q1, S), + S = #s { mnesia_q_table = MnesiaQTable, + next_seq_id = SeqId, + next_out_id = OutId }) -> + M = (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, + mnesia:write(MnesiaQTable, #q_record { out_id = OutId, m = M }, 'write'), S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. --spec transactional_read_q(s()) -> queue(). - -transactional_read_q(#s { mnesia_q_table = MnesiaQTable }) -> - [#q_record { key = 'q', q = Q }] = mnesia:read(MnesiaQTable, 'q', 'read'), - Q. - --spec transactional_write_q(queue(), s()) -> ok. - -transactional_write_q(Q, #s { mnesia_q_table = MnesiaQTable }) -> - mnesia:write(MnesiaQTable, #q_record { key = 'q', q = Q }, 'write'), - ok. - %%---------------------------------------------------------------------------- %% Pure helper functions. %% ---------------------------------------------------------------------------- -- cgit v1.2.1 From 5ccda495f59836b994d41472b3979801116ccbf6 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 25 Jan 2011 20:42:20 -0800 Subject: Some cleanup. --- src/rabbit_mnesia_queue.erl | 205 +++++++++++++++++++++++--------------------- 1 file changed, 109 insertions(+), 96 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 523a6edd..318c86b4 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -74,9 +74,9 @@ -behaviour(rabbit_backing_queue). -record(s, % The in-RAM queue state - { mnesia_q_table, % The Mnesia Q table name - mnesia_p_table, % The Mnesia P table name - mnesia_n_table, % The Mnesia N table name + { q_table, % The Mnesia queue table name + p_table, % The Mnesia pending-ack table name + n_table, % The Mnesia next_(seq_id, out_id) table name next_seq_id, % The next M's seq_id next_out_id, % The next M's out id txn_dict % In-progress txn->tx map @@ -121,9 +121,9 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). --type(s() :: #s { mnesia_q_table :: atom(), - mnesia_p_table :: atom(), - mnesia_n_table :: atom(), +-type(s() :: #s { q_table :: atom(), + p_table :: atom(), + n_table :: atom(), next_seq_id :: seq_id(), next_out_id :: non_neg_integer(), txn_dict :: dict() }). @@ -200,56 +200,56 @@ stop() -> ok. init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~n ~p,~n _, _) ->", [QueueName]), - {MnesiaQTable, MnesiaPTable, MnesiaNTable} = mnesia_tables(QueueName), + {QTable, PTable, NTable} = mnesia_tables(QueueName), QAttributes = record_info(fields, q_record), - case mnesia:create_table( - MnesiaQTable, - [{record_name, 'q_record'}, - {attributes, QAttributes}, - {type, ordered_set}]) + case mnesia:create_table(QTable, + [{record_name, 'q_record'}, + {attributes, QAttributes}, + {type, ordered_set}]) of {atomic, ok} -> ok; - {aborted, {already_exists, MnesiaQTable}} -> - 'q_record' = mnesia:table_info(MnesiaQTable, record_name), - QAttributes = mnesia:table_info(MnesiaQTable, attributes), + {aborted, {already_exists, QTable}} -> + 'q_record' = mnesia:table_info(QTable, record_name), + QAttributes = mnesia:table_info(QTable, attributes), ok end, PAttributes = record_info(fields, p_record), case mnesia:create_table( - MnesiaPTable, + PTable, [{record_name, 'p_record'}, {attributes, PAttributes}]) of {atomic, ok} -> ok; - {aborted, {already_exists, MnesiaPTable}} -> - 'p_record' = mnesia:table_info(MnesiaPTable, record_name), - PAttributes = mnesia:table_info(MnesiaPTable, attributes), + {aborted, {already_exists, PTable}} -> + 'p_record' = mnesia:table_info(PTable, record_name), + PAttributes = mnesia:table_info(PTable, attributes), ok end, NAttributes = record_info(fields, n_record), {NextSeqId, NextOutId} = case mnesia:create_table( - MnesiaNTable, + NTable, [{record_name, 'n_record'}, {attributes, NAttributes}]) of {atomic, ok} -> {0, 0}; - {aborted, {already_exists, MnesiaNTable}} -> - 'n_record' = mnesia:table_info(MnesiaNTable, record_name), - NAttributes = mnesia:table_info(MnesiaNTable, attributes), + {aborted, {already_exists, NTable}} -> + 'n_record' = mnesia:table_info(NTable, record_name), + NAttributes = mnesia:table_info(NTable, attributes), [#n_record { key = 'n', next_seq_id = NextSeqId0, next_out_id = NextOutId0 }] = - mnesia:dirty_read(MnesiaNTable, 'n'), + mnesia:dirty_read(NTable, 'n'), {NextSeqId0, NextOutId0} end, {atomic, Result} = mnesia:transaction(fun () -> - RS = #s { mnesia_q_table = MnesiaQTable, - mnesia_p_table = MnesiaPTable, - mnesia_n_table = MnesiaNTable, + RS = #s { q_table = QTable, + p_table = PTable, + n_table = NTable, next_seq_id = NextSeqId, next_out_id = NextOutId, txn_dict = dict:new() }, - transactional_save_state(RS) + mnesia_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -262,13 +262,14 @@ init(QueueName, _IsDurable, _Recover) -> %% %% -spec(terminate/1 :: (state()) -> state()). -terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> +terminate(S = #s { p_table = PTable }) -> rabbit_log:info("terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> - internal_clear_table(MnesiaPTable), + internal_clear_table(PTable), RS = S, - transactional_save_state(RS) + mnesia_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -281,15 +282,15 @@ terminate(S = #s { mnesia_p_table = MnesiaPTable }) -> %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). -delete_and_terminate(S = #s { mnesia_q_table = MnesiaQTable, - mnesia_p_table = MnesiaPTable }) -> +delete_and_terminate(S = #s { q_table = QTable, p_table = PTable }) -> rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> - internal_clear_table(MnesiaPTable), - internal_clear_table(MnesiaQTable), + internal_clear_table(PTable), + internal_clear_table(QTable), RS = S, - transactional_save_state(RS) + mnesia_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -302,14 +303,15 @@ delete_and_terminate(S = #s { mnesia_q_table = MnesiaQTable, %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(S = #s { mnesia_q_table = MnesiaQTable }) -> +purge(S = #s { q_table = QTable }) -> rabbit_log:info("purge(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> - LQ = length(mnesia:all_keys(MnesiaQTable)), - internal_clear_table(MnesiaQTable), + LQ = length(mnesia:all_keys(QTable)), + internal_clear_table(QTable), RS = S, - {LQ, transactional_save_state(RS)} + mnesia_save(RS), + {LQ, RS} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -330,7 +332,8 @@ publish(Msg, Props, S) -> {atomic, Result} = mnesia:transaction(fun () -> RS = publish_state(Msg, Props, false, S), - transactional_save_state(RS) + mnesia_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -363,10 +366,12 @@ publish_delivered(true, {atomic, Result} = mnesia:transaction( fun () -> - RS = (record_pending_ack_state( - (m(Msg, SeqId, Props)) #m { is_delivered = true }, S)) - #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }, - {SeqId, transactional_save_state(RS)} + mnesia_add_p( + (m(Msg, SeqId, Props)) #m { is_delivered = true }, S), + RS = S #s { next_seq_id = SeqId + 1, + next_out_id = OutId + 1 }, + mnesia_save(RS), + {SeqId, RS} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -387,7 +392,8 @@ dropwhile(Pred, S) -> {atomic, {_, Result}} = mnesia:transaction(fun () -> {Atom, RS} = internal_dropwhile(Pred, S), - {Atom, transactional_save_state(RS)} + mnesia_save(RS), + {Atom, RS} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -407,9 +413,12 @@ fetch(AckRequired, S) -> fun () -> {DR, RS} = internal_queue_out( - fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, + fun (M, Si) -> + internal_finish_fetch(AckRequired, M, Si) + end, S), - {DR, transactional_save_state(RS)} + mnesia_save(RS), + {DR, RS} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -428,7 +437,8 @@ ack(SeqIds, S) -> {atomic, Result} = mnesia:transaction(fun () -> {Guids, RS} = internal_ack(SeqIds, S), - {Guids, transactional_save_state(RS)} + mnesia_save(RS), + {Guids, RS} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -457,7 +467,8 @@ tx_publish(Txn, Msg, Props, S) -> RS = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), - transactional_save_state(RS) + mnesia_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -483,7 +494,8 @@ tx_ack(Txn, SeqIds, S) -> Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S), - transactional_save_state(RS) + mnesia_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -505,7 +517,8 @@ tx_rollback(Txn, S) -> mnesia:transaction(fun () -> #tx { to_ack = SeqIds } = lookup_tx(Txn, S), RS = erase_tx(Txn, S), - {SeqIds, transactional_save_state(RS)} + mnesia_save(RS), + {SeqIds, RS} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -536,7 +549,8 @@ tx_commit(Txn, F, PropsF, S) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), RS = tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S)), - {SeqIds, transactional_save_state(RS)} + mnesia_save(RS), + {SeqIds, RS} end), F(), rabbit_log:info(" -> ~p", [Result]), @@ -565,7 +579,8 @@ requeue(SeqIds, PropsF, S) -> end, SeqIds, S), - transactional_save_state(RS) + mnesia_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -577,11 +592,11 @@ requeue(SeqIds, PropsF, S) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(S = #s { mnesia_q_table = MnesiaQTable }) -> +len(S = #s { q_table = QTable }) -> rabbit_log:info("len(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> - LQ = length(mnesia:all_keys(MnesiaQTable)), + LQ = length(mnesia:all_keys(QTable)), LQ end), rabbit_log:info(" -> ~p", [Result]), @@ -595,11 +610,11 @@ len(S = #s { mnesia_q_table = MnesiaQTable }) -> %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(S = #s { mnesia_q_table = MnesiaQTable }) -> +is_empty(S = #s { q_table = QTable }) -> rabbit_log:info("is_empty(~n ~p)", [S]), {atomic, Result} = mnesia:transaction( fun () -> - LQ = length(mnesia:all_keys(MnesiaQTable)), + LQ = length(mnesia:all_keys(QTable)), LQ == 0 end), rabbit_log:info(" -> ~p", [Result]), @@ -660,15 +675,14 @@ handle_pre_hibernate(S) -> S. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(S = #s { mnesia_q_table = MnesiaQTable, - mnesia_p_table = MnesiaPTable, +status(S = #s { q_table = QTable, p_table = PTable, next_seq_id = NextSeqId }) -> rabbit_log:info("status(~n ~p)", [S]), {atomic, Result} = mnesia:transaction( fun () -> - LQ = length(mnesia:all_keys(MnesiaQTable)), - LP = length(mnesia:all_keys(MnesiaPTable)), + LQ = length(mnesia:all_keys(QTable)), + LP = length(mnesia:all_keys(PTable)), [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] end), rabbit_log:info(" -> ~p", [Result]), @@ -678,56 +692,55 @@ status(S = #s { mnesia_q_table = MnesiaQTable, %% Monadic helper functions for inside transactions. %% ---------------------------------------------------------------------------- --spec transactional_save_state(s()) -> s(). +-spec mnesia_save(s()) -> ok. -transactional_save_state(S = #s { mnesia_n_table = MnesiaNTable, - next_seq_id = NextSeqId, - next_out_id = NextOutId }) -> - ok = mnesia:write(MnesiaNTable, +mnesia_save(#s { n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId }) -> + ok = mnesia:write(NTable, #n_record { key = 'n', next_seq_id = NextSeqId, next_out_id = NextOutId }, - 'write'), - S. + 'write'). --spec record_pending_ack_state(m(), s()) -> s(). +-spec mnesia_add_p(m(), s()) -> ok. -record_pending_ack_state(M = #m { seq_id = SeqId }, - S = #s { mnesia_p_table = MnesiaPTable }) -> - mnesia:write(MnesiaPTable, #p_record { seq_id = SeqId, m = M }, 'write'), - S. +mnesia_add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> + mnesia:write(PTable, #p_record { seq_id = SeqId, m = M }, 'write'), + ok. -spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), [rabbit_guid:guid()], s()) -> {[rabbit_guid:guid()], s()}. -internal_ack3(F, SeqIds, S = #s { mnesia_p_table = MnesiaPTable }) -> +internal_ack3(F, SeqIds, S = #s { p_table = PTable }) -> {AllGuids, S1} = lists:foldl(fun (SeqId, {Acc, Si}) -> [#p_record { m = M }] = - mnesia:read(MnesiaPTable, SeqId, 'read'), - mnesia:delete(MnesiaPTable, SeqId, 'write'), + mnesia:read(PTable, SeqId, 'read'), + mnesia:delete(PTable, SeqId, 'write'), {[m_guid(M) | Acc], F(M, Si)} end, {[], S}, SeqIds), {lists:reverse(AllGuids), S1}. --spec internal_fetch/3 :: (ack_required(), m(), s()) -> {fetch_result(), s()}. +-spec internal_finish_fetch/3 :: (ack_required(), m(), s()) -> + {fetch_result(), s()}. -internal_fetch(AckRequired, - M = #m { - seq_id = SeqId, - msg = Msg, - is_delivered = IsDelivered }, - S = #s { mnesia_q_table = MnesiaQTable }) -> - LQ = length(mnesia:all_keys(MnesiaQTable)), +internal_finish_fetch(AckRequired, + M = #m { + seq_id = SeqId, + msg = Msg, + is_delivered = IsDelivered }, + S = #s { q_table = QTable }) -> + LQ = length(mnesia:all_keys(QTable)), {Ack, S1} = case AckRequired of true -> - {SeqId, - record_pending_ack_state(M #m { is_delivered = true }, S)}; + mnesia_add_p(M #m { is_delivered = true }, S), + {SeqId, S}; false -> {blank_ack, S} end, {{Msg, IsDelivered, Ack, LQ}, S1}. @@ -740,13 +753,13 @@ internal_ack(SeqIds, S) -> internal_ack3(fun (_, Si) -> Si end, SeqIds, S). (fun ((rabbit_types:message_properties()) -> boolean()), s()) -> {empty | ok, s()}). -internal_dropwhile(Pred, S = #s { mnesia_q_table = MnesiaQTable }) -> +internal_dropwhile(Pred, S = #s { q_table = QTable }) -> internal_queue_out( fun (M = #m { props = Props }, Si) -> case Pred(Props) of - true -> {_, Si1} = internal_fetch(false, M, Si), + true -> {_, Si1} = internal_finish_fetch(false, M, Si), internal_dropwhile(Pred, Si1); - false -> mnesia:write(MnesiaQTable, + false -> mnesia:write(QTable, #q_record { out_id = 0, m = M }, 'write'), {ok, Si} @@ -783,12 +796,12 @@ internal_clear_table(Table) -> -spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. -internal_queue_out(F, S = #s { mnesia_q_table = MnesiaQTable }) -> - case mnesia:first(MnesiaQTable) of +internal_queue_out(F, S = #s { q_table = QTable }) -> + case mnesia:first(QTable) of '$end_of_table' -> {empty, S}; OutId -> [#q_record { out_id = OutId, m = M }] = - mnesia:read(MnesiaQTable, OutId, 'read'), - mnesia:delete(MnesiaQTable, OutId, 'write'), + mnesia:read(QTable, OutId, 'read'), + mnesia:delete(QTable, OutId, 'write'), F(M, S) end. @@ -801,11 +814,11 @@ internal_queue_out(F, S = #s { mnesia_q_table = MnesiaQTable }) -> publish_state(Msg, Props, IsDelivered, - S = #s { mnesia_q_table = MnesiaQTable, + S = #s { q_table = QTable, next_seq_id = SeqId, next_out_id = OutId }) -> M = (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, - mnesia:write(MnesiaQTable, #q_record { out_id = OutId, m = M }, 'write'), + mnesia:write(QTable, #q_record { out_id = OutId, m = M }, 'write'), S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. %%---------------------------------------------------------------------------- -- cgit v1.2.1 From ae8d9f0a29788fafc39743692b0021ae39eec347 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 26 Jan 2011 15:04:30 +0000 Subject: Expose the error itself to the error handler --- src/rabbit_amqqueue.erl | 14 +++++++++----- src/rabbit_channel.erl | 4 ++-- src/rabbit_limiter.erl | 4 ++-- src/rabbit_misc.erl | 19 +++++++++++-------- src/rabbit_variable_queue.erl | 4 ++-- 5 files changed, 26 insertions(+), 19 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index ad9e3ce6..d8ecc8be 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -66,7 +66,11 @@ -spec(lookup/1 :: (name()) -> rabbit_types:ok(rabbit_types:amqqueue()) | rabbit_types:error('not_found')). --spec(with/2 :: (name(), qfun(A)) -> A | rabbit_types:error('not_found')). +-spec(with/2 :: (name(), qfun(A)) -> A | rabbit_types:error('not_found' | + {'noproc' | + 'nodedown' | + 'normal' | + 'shutdown' , _} )). -spec(with_or_die/2 :: (name(), qfun(A)) -> A | rabbit_types:channel_exit()). -spec(assert_equivalence/5 :: @@ -246,13 +250,13 @@ lookup(Name) -> with(Name, F, E) -> case lookup(Name) of {ok, Q} -> rabbit_misc:with_exit_handler(E, fun () -> F(Q) end); - {error, not_found} -> E() + {error, not_found} = Err -> E(Err) end. with(Name, F) -> - with(Name, F, fun () -> {error, not_found} end). + with(Name, F, fun rabbit_misc:id/1). with_or_die(Name, F) -> - with(Name, F, fun () -> rabbit_misc:not_found(Name) end). + with(Name, F, fun (_) -> rabbit_misc:not_found(Name) end). assert_equivalence(#amqqueue{durable = Durable, auto_delete = AutoDelete} = Q, @@ -498,7 +502,7 @@ pseudo_queue(QueueName, Pid) -> safe_delegate_call_ok(F, Pids) -> case delegate:invoke(Pids, fun (Pid) -> rabbit_misc:with_exit_handler( - fun () -> ok end, + fun rabbit_misc:const_ok/1, fun () -> F(Pid) end) end) of {_, []} -> ok; diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 91559ea6..aaaf2c37 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -708,7 +708,7 @@ handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, end) of ok -> {noreply, NewState}; - {error, not_found} -> + {error, _} -> %% Spec requires we ignore this situation. return_ok(NewState, NoWait, OkMsg) end @@ -874,7 +874,7 @@ handle_method(#'queue.declare'{queue = QueueNameBin, {ok, MessageCount, ConsumerCount} -> return_queue_declare_ok(QueueName, NoWait, MessageCount, ConsumerCount, State); - {error, not_found} -> + {error, _} -> case rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, Args, Owner) of {new, Q = #amqqueue{}} -> diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index 86ea7282..7e7dd6e4 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -73,7 +73,7 @@ can_send(undefined, _QPid, _AckRequired) -> true; can_send(LimiterPid, QPid, AckRequired) -> rabbit_misc:with_exit_handler( - fun () -> true end, + rabbit_misc:const(true), fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, infinity) end). @@ -92,7 +92,7 @@ get_limit(undefined) -> 0; get_limit(Pid) -> rabbit_misc:with_exit_handler( - fun () -> 0 end, + rabbit_misc:const(0), fun () -> gen_server2:call(Pid, get_limit, infinity) end). block(undefined) -> diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 3a4fb024..15714e6a 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -54,7 +54,7 @@ -export([all_module_attributes/1, build_acyclic_graph/3]). -export([now_ms/0]). -export([lock_file/1]). --export([const_ok/1, const/1]). +-export([const_ok/1, const/1, id/1]). -export([ntoa/1, ntoab/1]). %%---------------------------------------------------------------------------- @@ -125,7 +125,10 @@ -spec(report_cover/1 :: ([file:filename() | atom()]) -> 'ok'). -spec(throw_on_error/2 :: (atom(), thunk(rabbit_types:error(any()) | {ok, A} | A)) -> A). --spec(with_exit_handler/2 :: (thunk(A), thunk(A)) -> A). +-spec(with_exit_handler/2 :: + (fun ((rabbit_types:error({'noproc' | 'nodedown' | + 'normal' | 'shutdown' , term()})) -> A), + thunk(A)) -> A). -spec(filter_exit_map/2 :: (fun ((A) -> B), [A]) -> [B]). -spec(with_user/2 :: (rabbit_types:username(), thunk(A)) -> A). -spec(with_user_and_vhost/3 :: @@ -192,6 +195,7 @@ -spec(lock_file/1 :: (file:filename()) -> rabbit_types:ok_or_error('eexist')). -spec(const_ok/1 :: (any()) -> 'ok'). -spec(const/1 :: (A) -> const(A)). +-spec(id/1 :: (A) -> A). -spec(ntoa/1 :: (inet:ip_address()) -> string()). -spec(ntoab/1 :: (inet:ip_address()) -> string()). @@ -341,17 +345,15 @@ throw_on_error(E, Thunk) -> with_exit_handler(Handler, Thunk) -> try Thunk() - catch exit:{R, _} when R =:= noproc; R =:= nodedown; - R =:= normal; R =:= shutdown -> - Handler() + catch exit:{R, _} = Err when R =:= noproc; R =:= nodedown; + R =:= normal; R =:= shutdown -> + Handler({error, Err}) end. filter_exit_map(F, L) -> Ref = make_ref(), lists:filter(fun (R) -> R =/= Ref end, - [with_exit_handler( - fun () -> Ref end, - fun () -> F(I) end) || I <- L]). + [with_exit_handler(const(Ref), fun () -> F(I) end) || I <- L]). with_user(Username, Thunk) -> fun () -> @@ -835,6 +837,7 @@ lock_file(Path) -> const_ok(_) -> ok. const(X) -> fun (_) -> X end. +id(X) -> X. %% Format IPv4-mapped IPv6 addresses as IPv4, since they're what we see %% when IPv6 is enabled but not used (i.e. 99% of the time). diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 7142d560..3c62da2e 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -1114,8 +1114,8 @@ msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, MsgPropsFun) -> end) end, fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( - fun () -> remove_persistent_messages( - PersistentGuids) + fun (_) -> remove_persistent_messages( + PersistentGuids) end, F) end) end. -- cgit v1.2.1 From 32a41150136d9b08c01df62c3e79142f7e877d4b Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 26 Jan 2011 09:57:33 -0800 Subject: Added mnesia_pop --- src/rabbit_mnesia_queue.erl | 57 +++++++++++++++++++++++---------------------- 1 file changed, 29 insertions(+), 28 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 318c86b4..2c9294c2 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -118,6 +118,8 @@ %% -ifdef(use_specs). +-type(maybe(T) :: nothing | {just, T}). + -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id() | 'blank_ack'). @@ -412,11 +414,10 @@ fetch(AckRequired, S) -> mnesia:transaction( fun () -> {DR, RS} = - internal_queue_out( - fun (M, Si) -> - internal_finish_fetch(AckRequired, M, Si) - end, - S), + case mnesia_pop(S) of + nothing -> {empty, S}; + {just, M} -> internal_finish_fetch(AckRequired, M, S) + end, mnesia_save(RS), {DR, RS} end), @@ -703,6 +704,17 @@ mnesia_save(#s { n_table = NTable, next_out_id = NextOutId }, 'write'). +-spec mnesia_pop(s()) -> maybe(m()). + +mnesia_pop(#s { q_table = QTable }) -> + case mnesia:first(QTable) of + '$end_of_table' -> nothing; + OutId -> [#q_record { out_id = OutId, m = M }] = + mnesia:read(QTable, OutId, 'read'), + mnesia:delete(QTable, OutId, 'write'), + {just, M} + end. + -spec mnesia_add_p(m(), s()) -> ok. mnesia_add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> @@ -754,18 +766,18 @@ internal_ack(SeqIds, S) -> internal_ack3(fun (_, Si) -> Si end, SeqIds, S). -> {empty | ok, s()}). internal_dropwhile(Pred, S = #s { q_table = QTable }) -> - internal_queue_out( - fun (M = #m { props = Props }, Si) -> - case Pred(Props) of - true -> {_, Si1} = internal_finish_fetch(false, M, Si), - internal_dropwhile(Pred, Si1); - false -> mnesia:write(QTable, - #q_record { out_id = 0, m = M }, - 'write'), - {ok, Si} - end - end, - S). + case mnesia_pop(S) of + nothing -> {empty, S}; + {just, M = #m { props = Props }} -> + case Pred(Props) of + true -> {_, S1} = internal_finish_fetch(false, M, S), + internal_dropwhile(Pred, S1); + false -> mnesia:write(QTable, + #q_record { out_id = 0, m = M }, + 'write') + end, + {ok, S} + end. -spec tx_commit_state([rabbit_types:basic_message()], [seq_id()], @@ -794,17 +806,6 @@ internal_clear_table(Table) -> internal_clear_table(Table) end. --spec internal_queue_out(fun ((m(), s()) -> T), s()) -> {empty, s()} | T. - -internal_queue_out(F, S = #s { q_table = QTable }) -> - case mnesia:first(QTable) of - '$end_of_table' -> {empty, S}; - OutId -> [#q_record { out_id = OutId, m = M }] = - mnesia:read(QTable, OutId, 'read'), - mnesia:delete(QTable, OutId, 'write'), - F(M, S) - end. - -spec publish_state(rabbit_types:basic_message(), rabbit_types:message_properties(), boolean(), -- cgit v1.2.1 From 87c01f657e8e1c92dae27ed9df52f3e831388259 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 26 Jan 2011 10:03:44 -0800 Subject: Added mnesia_q_peek. --- src/rabbit_mnesia_queue.erl | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 2c9294c2..d20f200d 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -414,7 +414,7 @@ fetch(AckRequired, S) -> mnesia:transaction( fun () -> {DR, RS} = - case mnesia_pop(S) of + case mnesia_q_pop(S) of nothing -> {empty, S}; {just, M} -> internal_finish_fetch(AckRequired, M, S) end, @@ -704,9 +704,9 @@ mnesia_save(#s { n_table = NTable, next_out_id = NextOutId }, 'write'). --spec mnesia_pop(s()) -> maybe(m()). +-spec mnesia_q_pop(s()) -> maybe(m()). -mnesia_pop(#s { q_table = QTable }) -> +mnesia_q_pop(#s { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; OutId -> [#q_record { out_id = OutId, m = M }] = @@ -715,6 +715,16 @@ mnesia_pop(#s { q_table = QTable }) -> {just, M} end. +-spec mnesia_q_peek(s()) -> maybe(m()). + +mnesia_q_peek(#s { q_table = QTable }) -> + case mnesia:first(QTable) of + '$end_of_table' -> nothing; + OutId -> [#q_record { out_id = OutId, m = M }] = + mnesia:read(QTable, OutId, 'read'), + {just, M} + end. + -spec mnesia_add_p(m(), s()) -> ok. mnesia_add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> @@ -765,18 +775,16 @@ internal_ack(SeqIds, S) -> internal_ack3(fun (_, Si) -> Si end, SeqIds, S). (fun ((rabbit_types:message_properties()) -> boolean()), s()) -> {empty | ok, s()}). -internal_dropwhile(Pred, S = #s { q_table = QTable }) -> - case mnesia_pop(S) of +internal_dropwhile(Pred, S) -> + case mnesia_q_peek(S) of nothing -> {empty, S}; {just, M = #m { props = Props }} -> case Pred(Props) of - true -> {_, S1} = internal_finish_fetch(false, M, S), + true -> _ = mnesia_q_pop(S), + {_, S1} = internal_finish_fetch(false, M, S), internal_dropwhile(Pred, S1); - false -> mnesia:write(QTable, - #q_record { out_id = 0, m = M }, - 'write') - end, - {ok, S} + false -> {ok, S} + end end. -spec tx_commit_state([rabbit_types:basic_message()], -- cgit v1.2.1 From d3f3e549c2b2d99effbcd5dcda8fe94bec4aee82 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 26 Jan 2011 10:55:17 -0800 Subject: Clean-up. --- src/rabbit_mnesia_queue.erl | 104 +++++++++++++++++++++----------------------- 1 file changed, 49 insertions(+), 55 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index d20f200d..0726bf16 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -202,7 +202,7 @@ stop() -> ok. init(QueueName, _IsDurable, _Recover) -> rabbit_log:info("init(~n ~p,~n _, _) ->", [QueueName]), - {QTable, PTable, NTable} = mnesia_tables(QueueName), + {QTable, PTable, NTable} = db_tables(QueueName), QAttributes = record_info(fields, q_record), case mnesia:create_table(QTable, [{record_name, 'q_record'}, @@ -250,7 +250,7 @@ init(QueueName, _IsDurable, _Recover) -> next_seq_id = NextSeqId, next_out_id = NextOutId, txn_dict = dict:new() }, - mnesia_save(RS), + db_save(RS), RS end), rabbit_log:info(" -> ~p", [Result]), @@ -270,7 +270,7 @@ terminate(S = #s { p_table = PTable }) -> mnesia:transaction(fun () -> internal_clear_table(PTable), RS = S, - mnesia_save(RS), + db_save(RS), RS end), rabbit_log:info(" -> ~p", [Result]), @@ -291,7 +291,7 @@ delete_and_terminate(S = #s { q_table = QTable, p_table = PTable }) -> internal_clear_table(PTable), internal_clear_table(QTable), RS = S, - mnesia_save(RS), + db_save(RS), RS end), rabbit_log:info(" -> ~p", [Result]), @@ -312,7 +312,7 @@ purge(S = #s { q_table = QTable }) -> LQ = length(mnesia:all_keys(QTable)), internal_clear_table(QTable), RS = S, - mnesia_save(RS), + db_save(RS), {LQ, RS} end), rabbit_log:info(" -> ~p", [Result]), @@ -334,7 +334,7 @@ publish(Msg, Props, S) -> {atomic, Result} = mnesia:transaction(fun () -> RS = publish_state(Msg, Props, false, S), - mnesia_save(RS), + db_save(RS), RS end), rabbit_log:info(" -> ~p", [Result]), @@ -368,11 +368,11 @@ publish_delivered(true, {atomic, Result} = mnesia:transaction( fun () -> - mnesia_add_p( + db_add_p( (m(Msg, SeqId, Props)) #m { is_delivered = true }, S), RS = S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }, - mnesia_save(RS), + db_save(RS), {SeqId, RS} end), rabbit_log:info(" -> ~p", [Result]), @@ -394,7 +394,7 @@ dropwhile(Pred, S) -> {atomic, {_, Result}} = mnesia:transaction(fun () -> {Atom, RS} = internal_dropwhile(Pred, S), - mnesia_save(RS), + db_save(RS), {Atom, RS} end), rabbit_log:info(" -> ~p", [Result]), @@ -413,12 +413,12 @@ fetch(AckRequired, S) -> {atomic, Result} = mnesia:transaction( fun () -> - {DR, RS} = - case mnesia_q_pop(S) of - nothing -> {empty, S}; - {just, M} -> internal_finish_fetch(AckRequired, M, S) - end, - mnesia_save(RS), + DR = case db_q_pop(S) of + nothing -> empty; + {just, M} -> db_post_pop(AckRequired, M, S) + end, + RS = S, + db_save(RS), {DR, RS} end), rabbit_log:info(" -> ~p", [Result]), @@ -438,7 +438,7 @@ ack(SeqIds, S) -> {atomic, Result} = mnesia:transaction(fun () -> {Guids, RS} = internal_ack(SeqIds, S), - mnesia_save(RS), + db_save(RS), {Guids, RS} end), rabbit_log:info(" -> ~p", [Result]), @@ -468,7 +468,7 @@ tx_publish(Txn, Msg, Props, S) -> RS = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), - mnesia_save(RS), + db_save(RS), RS end), rabbit_log:info(" -> ~p", [Result]), @@ -495,7 +495,7 @@ tx_ack(Txn, SeqIds, S) -> Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S), - mnesia_save(RS), + db_save(RS), RS end), rabbit_log:info(" -> ~p", [Result]), @@ -518,7 +518,7 @@ tx_rollback(Txn, S) -> mnesia:transaction(fun () -> #tx { to_ack = SeqIds } = lookup_tx(Txn, S), RS = erase_tx(Txn, S), - mnesia_save(RS), + db_save(RS), {SeqIds, RS} end), rabbit_log:info(" -> ~p", [Result]), @@ -550,7 +550,7 @@ tx_commit(Txn, F, PropsF, S) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), RS = tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S)), - mnesia_save(RS), + db_save(RS), {SeqIds, RS} end), F(), @@ -574,13 +574,13 @@ requeue(SeqIds, PropsF, S) -> mnesia:transaction( fun () -> {_, RS} = - internal_ack3( + db_del_ps( fun (#m { msg = Msg, props = Props }, Si) -> publish_state(Msg, PropsF(Props), true, Si) end, SeqIds, S), - mnesia_save(RS), + db_save(RS), RS end), rabbit_log:info(" -> ~p", [Result]), @@ -693,9 +693,9 @@ status(S = #s { q_table = QTable, p_table = PTable, %% Monadic helper functions for inside transactions. %% ---------------------------------------------------------------------------- --spec mnesia_save(s()) -> ok. +-spec db_save(s()) -> ok. -mnesia_save(#s { n_table = NTable, +db_save(#s { n_table = NTable, next_seq_id = NextSeqId, next_out_id = NextOutId }) -> ok = mnesia:write(NTable, @@ -704,9 +704,9 @@ mnesia_save(#s { n_table = NTable, next_out_id = NextOutId }, 'write'). --spec mnesia_q_pop(s()) -> maybe(m()). +-spec db_q_pop(s()) -> maybe(m()). -mnesia_q_pop(#s { q_table = QTable }) -> +db_q_pop(#s { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; OutId -> [#q_record { out_id = OutId, m = M }] = @@ -715,9 +715,9 @@ mnesia_q_pop(#s { q_table = QTable }) -> {just, M} end. --spec mnesia_q_peek(s()) -> maybe(m()). +-spec db_q_peek(s()) -> maybe(m()). -mnesia_q_peek(#s { q_table = QTable }) -> +db_q_peek(#s { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; OutId -> [#q_record { out_id = OutId, m = M }] = @@ -725,18 +725,18 @@ mnesia_q_peek(#s { q_table = QTable }) -> {just, M} end. --spec mnesia_add_p(m(), s()) -> ok. +-spec db_add_p(m(), s()) -> ok. -mnesia_add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> +db_add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> mnesia:write(PTable, #p_record { seq_id = SeqId, m = M }, 'write'), ok. --spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), +-spec db_del_ps(fun (([rabbit_guid:guid()], s()) -> s()), [rabbit_guid:guid()], s()) -> {[rabbit_guid:guid()], s()}. -internal_ack3(F, SeqIds, S = #s { p_table = PTable }) -> +db_del_ps(F, SeqIds, S = #s { p_table = PTable }) -> {AllGuids, S1} = lists:foldl(fun (SeqId, {Acc, Si}) -> [#p_record { m = M }] = @@ -748,41 +748,35 @@ internal_ack3(F, SeqIds, S = #s { p_table = PTable }) -> SeqIds), {lists:reverse(AllGuids), S1}. --spec internal_finish_fetch/3 :: (ack_required(), m(), s()) -> - {fetch_result(), s()}. +-spec db_post_pop/3 :: (ack_required(), m(), s()) -> fetch_result(). -internal_finish_fetch(AckRequired, - M = #m { - seq_id = SeqId, - msg = Msg, - is_delivered = IsDelivered }, - S = #s { q_table = QTable }) -> +db_post_pop(AckRequired, + M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + S = #s { q_table = QTable }) -> LQ = length(mnesia:all_keys(QTable)), - {Ack, S1} = - case AckRequired of - true -> - mnesia_add_p(M #m { is_delivered = true }, S), - {SeqId, S}; - false -> {blank_ack, S} - end, - {{Msg, IsDelivered, Ack, LQ}, S1}. + Ack = case AckRequired of + true -> db_add_p(M #m { is_delivered = true }, S), + SeqId; + false -> blank_ack + end, + {Msg, IsDelivered, Ack, LQ}. -spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). -internal_ack(SeqIds, S) -> internal_ack3(fun (_, Si) -> Si end, SeqIds, S). +internal_ack(SeqIds, S) -> db_del_ps(fun (_, Si) -> Si end, SeqIds, S). -spec(internal_dropwhile/2 :: (fun ((rabbit_types:message_properties()) -> boolean()), s()) -> {empty | ok, s()}). internal_dropwhile(Pred, S) -> - case mnesia_q_peek(S) of + case db_q_peek(S) of nothing -> {empty, S}; {just, M = #m { props = Props }} -> case Pred(Props) of - true -> _ = mnesia_q_pop(S), - {_, S1} = internal_finish_fetch(false, M, S), - internal_dropwhile(Pred, S1); + true -> _ = db_q_pop(S), + _ = db_post_pop(false, M, S), + internal_dropwhile(Pred, S); false -> {ok, S} end end. @@ -868,9 +862,9 @@ m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. %% TODO: Import correct argument type. --spec mnesia_tables(_) -> {atom(), atom(), atom()}. +-spec db_tables(_) -> {atom(), atom(), atom()}. -mnesia_tables(QueueName) -> +db_tables(QueueName) -> Str = lists:flatten(io_lib:format("~p", [QueueName])), {list_to_atom(lists:append("q: ", Str)), list_to_atom(lists:append("p: ", Str)), -- cgit v1.2.1 From f1ca58ac6af516beffc172b3da2271751e0bdb0a Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 26 Jan 2011 11:39:53 -0800 Subject: Cleaned up Mnesia version. Suitable for showing to Jerry. --- src/rabbit_mnesia_queue.erl | 331 +++++++++++++++++++++++--------------------- 1 file changed, 175 insertions(+), 156 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 0726bf16..788cc6ae 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -59,20 +59,25 @@ %% example, rabbit_amqqueue_process knows too much about the state of %% a backing queue, even though this state may now change without its %% knowledge. Additionally, there are points in the protocol where -%% failures can lose messages. +%% failures can lose msgs. -%% BUG: Need to provide better back-pressure when queue is filling up. +%% TODO: Need to provide better back-pressure when queue is filling up. -%% BUG: Need to store each message in a separate row. - -%% BUG: Need to think about recovering pending acks. +%% TODO: Need to think about recovering pending acks. %% BUG: Should not use mnesia:all_keys to count entries. %% BUG: P records do not need a separate seq_id. +%% TODO: Worry about dropping txn_dict upon failure. + -behaviour(rabbit_backing_queue). +%% The S record is the in-RAM AMQP queue state. It contains the names +%% of three Mnesia queues; the next_seq_id and next_out_id (also +%% stored in the N table in Mnesia); and the transaction dictionary +%% (which can be dropped on a crash). + -record(s, % The in-RAM queue state { q_table, % The Mnesia queue table name p_table, % The Mnesia pending-ack table name @@ -82,6 +87,11 @@ txn_dict % In-progress txn->tx map }). +%% An M record is a wrapper around a msg. It contains a seq_id, +%% assigned when the msg is published; the msg itself; the msg's +%% props, as presented by the client or as transformed by the client; +%% and an is-delivered flag, for reporting. + -record(m, % A wrapper aroung a msg { seq_id, % The seq_id for the msg msg, % The msg itself @@ -89,21 +99,43 @@ is_delivered % Has the msg been delivered? (for reporting) }). +%% A TX record is the value stored in the in-RAM txn_dict. It contains +%% a list of (msg, props) pairs to be published after the AMQP +%% transaction, in reverse order, and a list of seq_ids to ack, in any +%% order. No other write-operations are allowed in AMQP transactions, +%% and the effects of these operations are not visible to the client +%% until after the AMQP transaction commits. + -record(tx, { to_pub, % List of (msg, props) pairs to publish to_ack % List of seq_ids to ack }). +%% A Q record is a msg stored in the Q table in Mnesia. It is indexed +%% by the out-id, which orders msgs; and contains the M itself. We +%% push Ms with a new high out_id, and pop the M with the lowest +%% out_id. (We cannot use the seq_id for ordering since msgs may be +%% requeued while keeping the same seq_id.) + -record(q_record, % Q records in Mnesia { out_id, % The key: The out_id m % The value: The M }). +%% A P record is a pending-ack stored in the P table in Mnesia. It is +%% indexed by the seq_id, and contains the M itself. It is randomly +%% accssed by seq_id. + -record(p_record, % P records in Mnesia { seq_id, % The key: The seq_id m % The value: The M }). +%% An N record holds counters in the single row in the N table in +%% Mnesia. It contains the next_seq_id and next_out_id from the S, so +%% that they can be recovered after a crash. They are updated on every +%% Mnesia transaction that updates them in the in-RAM S. + -record(n_record, % next_seq_id & next_out_id record in Mnesia { key, % The key: the atom 'n' next_seq_id, % The Mnesia next_seq_id @@ -161,10 +193,10 @@ %%---------------------------------------------------------------------------- %% start/1 promises that a list of (durable) queue names will be -%% started in the near future. This lets us perform early checking -%% necessary for the consistency of those queues or initialise other -%% shared resources. This function creates an Mnesia transaction to -%% run in, and therefore may not be called from inside another Mnesia +%% started in the near future. This lets us perform early checking of +%% the consistency of those queues, and initialize other shared +%% resources. This function creates an Mnesia transaction to run in, +%% and therefore may not be called from inside another Mnesia %% transaction. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). @@ -243,77 +275,64 @@ init(QueueName, _IsDurable, _Recover) -> {NextSeqId0, NextOutId0} end, {atomic, Result} = - mnesia:transaction(fun () -> - RS = #s { q_table = QTable, - p_table = PTable, - n_table = NTable, - next_seq_id = NextSeqId, - next_out_id = NextOutId, - txn_dict = dict:new() }, - db_save(RS), - RS + mnesia:transaction(fun () -> RS = #s { q_table = QTable, + p_table = PTable, + n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId, + txn_dict = dict:new() }, + db_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% terminate/1 is called when the queue is terminating, to delete all -%% of its enqueued msgs. This function creates an Mnesia transaction -%% to run in, and therefore may not be called from inside another -%% Mnesia transaction. +%% terminate/1 deletes all of a queue's enqueued msgs. This function +%% creates an Mnesia transaction to run in, and therefore may not be +%% called from inside another Mnesia transaction. %% %% -spec(terminate/1 :: (state()) -> state()). terminate(S = #s { p_table = PTable }) -> rabbit_log:info("terminate(~n ~p) ->", [S]), {atomic, Result} = - mnesia:transaction(fun () -> - internal_clear_table(PTable), - RS = S, - db_save(RS), - RS - end), + mnesia:transaction(fun () -> clear_table(PTable), S end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% delete_and_terminate/1 is called when the queue is terminating, to -%% delete all of its enqueued msgs and pending acks. This function -%% creates an Mnesia transaction to run in, and therefore may not be -%% called from inside another Mnesia transaction. +%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and +%% pending acks. This function creates an Mnesia transaction to run +%% in, and therefore may not be called from inside another Mnesia +%% transaction. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). delete_and_terminate(S = #s { q_table = QTable, p_table = PTable }) -> rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = - mnesia:transaction(fun () -> - internal_clear_table(PTable), - internal_clear_table(QTable), - RS = S, - db_save(RS), - RS + mnesia:transaction(fun () -> clear_table(PTable), + clear_table(QTable), + S end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% purge/1 does the same as terminate/1, but also returns the count of -%% msgs purged. This function creates an Mnesia transaction to run in, -%% and therefore may not be called from inside another Mnesia -%% transaction. +%% purge/1 deletes all of queue's enqueued msgs, and also returns the +%% count of msgs purged. This function creates an Mnesia transaction +%% to run in, and therefore may not be called from inside another +%% Mnesia transaction. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). purge(S = #s { q_table = QTable }) -> rabbit_log:info("purge(~n ~p) ->", [S]), {atomic, Result} = - mnesia:transaction(fun () -> - LQ = length(mnesia:all_keys(QTable)), - internal_clear_table(QTable), - RS = S, - db_save(RS), - {LQ, RS} + mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), + clear_table(QTable), + {LQ, S} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -332,20 +351,19 @@ purge(S = #s { q_table = QTable }) -> publish(Msg, Props, S) -> rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), {atomic, Result} = - mnesia:transaction(fun () -> - RS = publish_state(Msg, Props, false, S), - db_save(RS), - RS + mnesia:transaction(fun () -> RS = publish_state(Msg, Props, false, S), + db_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% publish_delivered/4 is called for any msg that has already been -%% passed straight out to a client because the queue is empty. We -%% update all state (e.g., next_seq_id) as if we had in fact handled -%% the msg. This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% publish_delivered/4 is called after a msg has been passed straight +%% out to a client because the queue is empty. We update all state +%% (e.g., next_seq_id) as if we had in fact handled the msg. This +%% function creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. %% %% -spec(publish_delivered/4 :: %% (ack_required(), @@ -379,11 +397,12 @@ publish_delivered(true, Result. %%---------------------------------------------------------------------------- -%% dropwhile/2 drops msgs from the head of the queue while the -%% supplied predicate returns true. This function creates an Mnesia -%% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction, and the supplied Pred may not call -%% another function that creates an Mnesia transaction. +%% dropwhile/2 drops msgs from the head of the queue while there are +%% msgs and while the supplied predicate returns true. This function +%% creates an Mnesia transaction to run in, and therefore may not be +%% called from inside another Mnesia transaction, and the supplied +%% Pred may not call another function that creates an Mnesia +%% transaction. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -392,18 +411,17 @@ publish_delivered(true, dropwhile(Pred, S) -> rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), {atomic, {_, Result}} = - mnesia:transaction(fun () -> - {Atom, RS} = internal_dropwhile(Pred, S), - db_save(RS), - {Atom, RS} + mnesia:transaction(fun () -> {Atom, RS} = internal_dropwhile(Pred, S), + db_save(RS), + {Atom, RS} end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% fetch/2 produces the next msg. This function creates an Mnesia -%% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. +%% fetch/2 produces the next msg, if any. This function creates an +%% Mnesia transaction to run in, and therefore may not be called from +%% inside another Mnesia transaction. %% %% -spec(fetch/2 :: (ack_required(), state()) -> %% {ok | fetch_result(), state()}). @@ -412,22 +430,20 @@ fetch(AckRequired, S) -> rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), {atomic, Result} = mnesia:transaction( - fun () -> - DR = case db_q_pop(S) of - nothing -> empty; - {just, M} -> db_post_pop(AckRequired, M, S) - end, - RS = S, - db_save(RS), - {DR, RS} + fun () -> DR = case db_q_pop(S) of + nothing -> empty; + {just, M} -> db_post_pop(AckRequired, M, S) + end, + {DR, S} end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% ack/2 acknowledges msgs names by SeqIds. Maps SeqIds to guids upon -%% return. This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% ack/2 acknowledges msgs named by SeqIds, mapping SeqIds to guids +%% upon return. This function creates an Mnesia transaction to run in, +%% and therefore may not be called from inside another Mnesia +%% transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -436,10 +452,9 @@ fetch(AckRequired, S) -> ack(SeqIds, S) -> rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), {atomic, Result} = - mnesia:transaction(fun () -> - {Guids, RS} = internal_ack(SeqIds, S), - db_save(RS), - {Guids, RS} + mnesia:transaction(fun () -> {Guids, RS} = internal_ack(SeqIds, S), + db_save(RS), + {Guids, RS} end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -463,13 +478,12 @@ tx_publish(Txn, Msg, Props, S) -> "tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), {atomic, Result} = mnesia:transaction( - fun () -> - Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), - RS = store_tx(Txn, - Tx #tx { to_pub = [{Msg, Props} | Pubs] }, - S), - db_save(RS), - RS + fun () -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), + RS = store_tx(Txn, + Tx #tx { to_pub = [{Msg, Props} | Pubs] }, + S), + db_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -489,24 +503,22 @@ tx_ack(Txn, SeqIds, S) -> rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), {atomic, Result} = mnesia:transaction( - fun () -> - Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), - RS = store_tx(Txn, - Tx #tx { - to_ack = lists:append(SeqIds, SeqIds0) }, + fun () -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), + RS = store_tx(Txn, + Tx #tx { + to_ack = lists:append(SeqIds, SeqIds0) }, S), - db_save(RS), - RS + db_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% tx_rollback/2 undoes anything that has been done in the context of -%% the specified AMQP transaction. It returns the state with to_pub -%% and to_ack erased. This function creates an Mnesia transaction to -%% run in, and therefore may not be called from inside another Mnesia -%% transaction. +%% the specified AMQP transaction. This function creates an Mnesia +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -525,12 +537,12 @@ tx_rollback(Txn, S) -> Result. %%---------------------------------------------------------------------------- -%% tx_commit/4 commits an AMQP transaction. The F passed in must be -%% called once the msgs have really been commited. This CPS permits -%% the possibility of commit coalescing. This function creates an -%% Mnesia transaction to run in, and therefore may not be called from -%% inside another Mnesia transaction. However, the supplied F is -%% called outside the transaction. +%% tx_commit/4 commits an AMQP transaction. The F passed in is called +%% once the msgs have really been commited. This CPS permits the +%% possibility of commit coalescing. This function creates an Mnesia +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. However, the supplied F is called +%% outside the transaction. %% %% The following spec is wrong, as blank_acks cannot be returned. %% @@ -572,16 +584,15 @@ requeue(SeqIds, PropsF, S) -> rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), {atomic, Result} = mnesia:transaction( - fun () -> - {_, RS} = - db_del_ps( - fun (#m { msg = Msg, props = Props }, Si) -> - publish_state(Msg, PropsF(Props), true, Si) - end, - SeqIds, - S), - db_save(RS), - RS + fun () -> {_, RS} = + db_del_ps( + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) + end, + SeqIds, + S), + db_save(RS), + RS end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -595,11 +606,8 @@ requeue(SeqIds, PropsF, S) -> len(S = #s { q_table = QTable }) -> rabbit_log:info("len(~n ~p) ->", [S]), - {atomic, Result} = mnesia:transaction( - fun () -> - LQ = length(mnesia:all_keys(QTable)), - LQ - end), + {atomic, Result} = + mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -613,11 +621,8 @@ len(S = #s { q_table = QTable }) -> is_empty(S = #s { q_table = QTable }) -> rabbit_log:info("is_empty(~n ~p)", [S]), - {atomic, Result} = mnesia:transaction( - fun () -> - LQ = length(mnesia:all_keys(QTable)), - LQ == 0 - end), + {atomic, Result} = + mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -681,10 +686,9 @@ status(S = #s { q_table = QTable, p_table = PTable, rabbit_log:info("status(~n ~p)", [S]), {atomic, Result} = mnesia:transaction( - fun () -> - LQ = length(mnesia:all_keys(QTable)), - LP = length(mnesia:all_keys(PTable)), - [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] + fun () -> LQ = length(mnesia:all_keys(QTable)), + LP = length(mnesia:all_keys(PTable)), + [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] end), rabbit_log:info(" -> ~p", [Result]), Result. @@ -693,6 +697,9 @@ status(S = #s { q_table = QTable, p_table = PTable, %% Monadic helper functions for inside transactions. %% ---------------------------------------------------------------------------- +%% db_save copies the volatile part of the state (next_seq_id and +%% next_out_id) to Mnesia. + -spec db_save(s()) -> ok. db_save(#s { n_table = NTable, @@ -704,6 +711,8 @@ db_save(#s { n_table = NTable, next_out_id = NextOutId }, 'write'). +%% db_q_pop pops a msg, if any, from the Q table in Mnesia. + -spec db_q_pop(s()) -> maybe(m()). db_q_pop(#s { q_table = QTable }) -> @@ -715,6 +724,9 @@ db_q_pop(#s { q_table = QTable }) -> {just, M} end. +%% db_q_peek returns the first msg, if any, from the Q table in +%% Mnesia. + -spec db_q_peek(s()) -> maybe(m()). db_q_peek(#s { q_table = QTable }) -> @@ -725,12 +737,32 @@ db_q_peek(#s { q_table = QTable }) -> {just, M} end. +%% db_post_pop operates after db_q_pop, calling db_add_p if necessary. + +-spec db_post_pop/3 :: (ack_required(), m(), s()) -> fetch_result(). + +db_post_pop(AckRequired, + M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + S = #s { q_table = QTable }) -> + LQ = length(mnesia:all_keys(QTable)), + Ack = case AckRequired of + true -> db_add_p(M #m { is_delivered = true }, S), SeqId; + false -> blank_ack + end, + {Msg, IsDelivered, Ack, LQ}. + +%% db_add_p adds a pending ack to the P table in Mnesia. + -spec db_add_p(m(), s()) -> ok. db_add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> mnesia:write(PTable, #p_record { seq_id = SeqId, m = M }, 'write'), ok. +%% db_del_fs deletes some number of pending acks from the P table in +%% Mnesia, applying a transactional function F after each msg is +%% deleted, and returns their guids. + -spec db_del_ps(fun (([rabbit_guid:guid()], s()) -> s()), [rabbit_guid:guid()], s()) -> @@ -738,29 +770,16 @@ db_add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> db_del_ps(F, SeqIds, S = #s { p_table = PTable }) -> {AllGuids, S1} = - lists:foldl(fun (SeqId, {Acc, Si}) -> - [#p_record { m = M }] = - mnesia:read(PTable, SeqId, 'read'), - mnesia:delete(PTable, SeqId, 'write'), - {[m_guid(M) | Acc], F(M, Si)} - end, - {[], S}, - SeqIds), + lists:foldl( + fun (SeqId, {Acc, Si}) -> + [#p_record { m = M }] = mnesia:read(PTable, SeqId, 'read'), + mnesia:delete(PTable, SeqId, 'write'), + {[m_guid(M) | Acc], F(M, Si)} + end, + {[], S}, + SeqIds), {lists:reverse(AllGuids), S1}. --spec db_post_pop/3 :: (ack_required(), m(), s()) -> fetch_result(). - -db_post_pop(AckRequired, - M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, - S = #s { q_table = QTable }) -> - LQ = length(mnesia:all_keys(QTable)), - Ack = case AckRequired of - true -> db_add_p(M #m { is_delivered = true }, S), - SeqId; - false -> blank_ack - end, - {Msg, IsDelivered, Ack, LQ}. - -spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). internal_ack(SeqIds, S) -> db_del_ps(fun (_, Si) -> Si end, SeqIds, S). @@ -799,13 +818,13 @@ tx_commit_state(Pubs, SeqIds, PropsF, S) -> %% BUG: The write-set of the transaction may be huge if the table is %% huge. --spec internal_clear_table(atom()) -> ok. +-spec clear_table(atom()) -> ok. -internal_clear_table(Table) -> +clear_table(Table) -> case mnesia:first(Table) of '$end_of_table' -> ok; Key -> mnesia:delete(Table, Key, 'write'), - internal_clear_table(Table) + clear_table(Table) end. -spec publish_state(rabbit_types:basic_message(), -- cgit v1.2.1 From 841c2e89cdc91090f0e29c1e3f0b4e77f7af5165 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 31 Jan 2011 14:41:00 +0000 Subject: Bump up sync timers in queue and msg_store to 25ms --- src/rabbit_amqqueue_process.erl | 2 +- src/rabbit_msg_store.erl | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 3418c663..28430cb2 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -21,7 +21,7 @@ -behaviour(gen_server2). -define(UNSENT_MESSAGE_LIMIT, 100). --define(SYNC_INTERVAL, 5). %% milliseconds +-define(SYNC_INTERVAL, 25). %% milliseconds -define(RAM_DURATION_UPDATE_INTERVAL, 5000). -define(BASE_MESSAGE_PROPERTIES, diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index e9c356e1..7f3cf35f 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -33,7 +33,7 @@ -include("rabbit_msg_store.hrl"). --define(SYNC_INTERVAL, 5). %% milliseconds +-define(SYNC_INTERVAL, 25). %% milliseconds -define(CLEAN_FILENAME, "clean.dot"). -define(FILE_SUMMARY_FILENAME, "file_summary.ets"). -- cgit v1.2.1 From a7aa821871b97844095cac1fd22afecf5904f85b Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 1 Feb 2011 13:58:33 -0800 Subject: Fixing some reastrt problems. --- src/rabbit_mnesia_queue.erl | 125 ++++++++++++++++++++++---------------------- 1 file changed, 63 insertions(+), 62 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 788cc6ae..1c552e16 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -195,9 +195,7 @@ %% start/1 promises that a list of (durable) queue names will be %% started in the near future. This lets us perform early checking of %% the consistency of those queues, and initialize other shared -%% resources. This function creates an Mnesia transaction to run in, -%% and therefore may not be called from inside another Mnesia -%% transaction. +%% resources. It is ignored in this implementation. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). @@ -209,9 +207,7 @@ start(_DurableQueues) -> ok. %%---------------------------------------------------------------------------- %% stop/0 tears down all state/resources upon shutdown. It might not -%% be called. This function creates an Mnesia transaction to run in, -%% and therefore may not be called from inside another Mnesia -%% transaction. +%% be called. It is ignored in this implementation. %% %% -spec(stop/0 :: () -> 'ok'). @@ -232,63 +228,68 @@ stop() -> ok. %% BUG: It's unfortunate that this can't all be done in a single %% Mnesia transaction! -init(QueueName, _IsDurable, _Recover) -> - rabbit_log:info("init(~n ~p,~n _, _) ->", [QueueName]), +init(QueueName, IsDurable, Recover) -> + rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", + [QueueName, IsDurable, Recover]), {QTable, PTable, NTable} = db_tables(QueueName), - QAttributes = record_info(fields, q_record), - case mnesia:create_table(QTable, - [{record_name, 'q_record'}, - {attributes, QAttributes}, - {type, ordered_set}]) - of - {atomic, ok} -> ok; - {aborted, {already_exists, QTable}} -> - 'q_record' = mnesia:table_info(QTable, record_name), - QAttributes = mnesia:table_info(QTable, attributes), - ok - end, - PAttributes = record_info(fields, p_record), - case mnesia:create_table( - PTable, - [{record_name, 'p_record'}, {attributes, PAttributes}]) - of - {atomic, ok} -> ok; - {aborted, {already_exists, PTable}} -> - 'p_record' = mnesia:table_info(PTable, record_name), - PAttributes = mnesia:table_info(PTable, attributes), - ok + case Recover of + false -> _ = mnesia:delete_table(QTable), + _ = mnesia:delete_table(PTable), + _ = mnesia:delete_table(NTable); + true -> ok end, - NAttributes = record_info(fields, n_record), - {NextSeqId, NextOutId} = - case mnesia:create_table( - NTable, - [{record_name, 'n_record'}, {attributes, NAttributes}]) - of - {atomic, ok} -> {0, 0}; - {aborted, {already_exists, NTable}} -> - 'n_record' = mnesia:table_info(NTable, record_name), - NAttributes = mnesia:table_info(NTable, attributes), - [#n_record { key = 'n', - next_seq_id = NextSeqId0, - next_out_id = NextOutId0 }] = - mnesia:dirty_read(NTable, 'n'), - {NextSeqId0, NextOutId0} - end, + create_table(QTable, 'q_record', 'ordered_set', record_info(fields, + q_record)), + create_table(PTable, 'p_record', 'set', record_info(fields, p_record)), + create_table(NTable, 'n_record', 'set', record_info(fields, n_record)), {atomic, Result} = - mnesia:transaction(fun () -> RS = #s { q_table = QTable, - p_table = PTable, - n_table = NTable, - next_seq_id = NextSeqId, - next_out_id = NextOutId, - txn_dict = dict:new() }, - db_save(RS), - RS - end), + mnesia:transaction( + fun () -> + {NextSeqId, NextOutId} = + case mnesia:read(NTable, 'n', 'read') of + [] -> {0, 0}; + [#n_record { next_seq_id = NextSeqId0, + next_out_id = NextOutId0 }] -> + {NextSeqId0, NextOutId0} + end, + RS = #s { q_table = QTable, + p_table = PTable, + n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId, + txn_dict = dict:new() }, + db_save(RS), + RS + end), + rabbit_log:info(" -> ~p", [Result]), + Result. + +-spec create_table(atom(), atom(), atom(), [atom()]) -> ok. + +create_table(Table, RecordName, Type, Attributes) -> + rabbit_log:info("create_table(~n ~p,~n ~p,~n ~p,~n ~p) ->", + [Table, RecordName, Type, Attributes]), + Result = case mnesia:create_table(Table, [{record_name, RecordName}, + {type, Type}, + {attributes, Attributes}, + {ram_copies, []}, + {disc_copies, [node()]}]) of + {atomic, ok} -> rabbit_log:info("***CREATED***"), + ok; + {aborted, {already_exists, Table}} -> + rabbit_log:info("***ALREADY EXISTS***"), + rabbit_log:info( + "KEYS ARE ~p", [mnesia:dirty_all_keys(Table)]), + RecordName = mnesia:table_info(Table, record_name), + Type = mnesia:table_info(Table, type), + Attributes = mnesia:table_info(Table, attributes), + ok + end, rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% terminate/1 deletes all of a queue's enqueued msgs. This function +%% terminate/1 deletes all of a queue's pending acks. This function %% creates an Mnesia transaction to run in, and therefore may not be %% called from inside another Mnesia transaction. %% @@ -312,8 +313,8 @@ terminate(S = #s { p_table = PTable }) -> delete_and_terminate(S = #s { q_table = QTable, p_table = PTable }) -> rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = - mnesia:transaction(fun () -> clear_table(PTable), - clear_table(QTable), + mnesia:transaction(fun () -> clear_table(QTable), + clear_table(PTable), S end), rabbit_log:info(" -> ~p", [Result]), @@ -400,9 +401,9 @@ publish_delivered(true, %% dropwhile/2 drops msgs from the head of the queue while there are %% msgs and while the supplied predicate returns true. This function %% creates an Mnesia transaction to run in, and therefore may not be -%% called from inside another Mnesia transaction, and the supplied -%% Pred may not call another function that creates an Mnesia -%% transaction. +%% called from inside another Mnesia transaction. The supplied Pred is +%% called from inside the transaction, and therefore may not call +%% another function that creates an Mnesia transaction. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -816,7 +817,7 @@ tx_commit_state(Pubs, SeqIds, PropsF, S) -> %% Like mnesia:clear_table, but within a transaction. %% BUG: The write-set of the transaction may be huge if the table is -%% huge. +%% huge. Then again, this might not bother Mnesia. -spec clear_table(atom()) -> ok. -- cgit v1.2.1 From 3e01d26ff0d876ffe47765281d09de373e24b70f Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 1 Feb 2011 16:23:29 -0800 Subject: Passes all persistence tests. --- src/rabbit_mnesia_queue.erl | 83 ++++++++++++++++++++++++++++----------------- 1 file changed, 51 insertions(+), 32 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 1c552e16..934c443b 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -223,7 +223,7 @@ stop() -> ok. %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) %% -> state()). -%% BUG: Should fsck state, and should drop non-persistent msgs. +%% BUG: We should allow clustering of the Mnesia tables. %% BUG: It's unfortunate that this can't all be done in a single %% Mnesia transaction! @@ -252,6 +252,7 @@ init(QueueName, IsDurable, Recover) -> next_out_id = NextOutId0 }] -> {NextSeqId0, NextOutId0} end, + transactional_delete_nonpersistent_msgs(QTable), RS = #s { q_table = QTable, p_table = PTable, n_table = NTable, @@ -264,59 +265,69 @@ init(QueueName, IsDurable, Recover) -> rabbit_log:info(" -> ~p", [Result]), Result. +-spec transactional_delete_nonpersistent_msgs(atom()) -> ok. + +transactional_delete_nonpersistent_msgs(QTable) -> + lists:foreach( + fun (Key) -> + [#q_record { out_id = Key, m = M }] = + mnesia:read(QTable, Key, 'read'), + case M of + #m { msg = #basic_message { is_persistent = true }} -> ok; + _ -> mnesia:delete(QTable, Key, 'write') + end + end, + mnesia:all_keys(QTable)). + -spec create_table(atom(), atom(), atom(), [atom()]) -> ok. create_table(Table, RecordName, Type, Attributes) -> - rabbit_log:info("create_table(~n ~p,~n ~p,~n ~p,~n ~p) ->", - [Table, RecordName, Type, Attributes]), - Result = case mnesia:create_table(Table, [{record_name, RecordName}, - {type, Type}, - {attributes, Attributes}, - {ram_copies, []}, - {disc_copies, [node()]}]) of - {atomic, ok} -> rabbit_log:info("***CREATED***"), - ok; - {aborted, {already_exists, Table}} -> - rabbit_log:info("***ALREADY EXISTS***"), - rabbit_log:info( - "KEYS ARE ~p", [mnesia:dirty_all_keys(Table)]), - RecordName = mnesia:table_info(Table, record_name), - Type = mnesia:table_info(Table, type), - Attributes = mnesia:table_info(Table, attributes), - ok - end, - rabbit_log:info(" -> ~p", [Result]), - Result. + case mnesia:create_table(Table, [{record_name, RecordName}, + {type, Type}, + {attributes, Attributes}, + {ram_copies, [node()]}]) of + {atomic, ok} -> ok; + {aborted, {already_exists, Table}} -> + RecordName = mnesia:table_info(Table, record_name), + Type = mnesia:table_info(Table, type), + Attributes = mnesia:table_info(Table, attributes), + ok + end. %%---------------------------------------------------------------------------- -%% terminate/1 deletes all of a queue's pending acks. This function -%% creates an Mnesia transaction to run in, and therefore may not be -%% called from inside another Mnesia transaction. +%% terminate/1 deletes all of a queue's pending acks, prior to +%% shutdown. This function creates an Mnesia transaction to run in, +%% and therefore may not be called from inside another Mnesia +%% transaction. %% %% -spec(terminate/1 :: (state()) -> state()). -terminate(S = #s { p_table = PTable }) -> +terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> rabbit_log:info("terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> clear_table(PTable), S end), + mnesia:dump_tables([QTable, PTable, NTable]), rabbit_log:info(" -> ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% delete_and_terminate/1 deletes all of a queue's enqueued msgs and -%% pending acks. This function creates an Mnesia transaction to run -%% in, and therefore may not be called from inside another Mnesia -%% transaction. +%% pending acks, prior to shutdown. This function creates an Mnesia +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). -delete_and_terminate(S = #s { q_table = QTable, p_table = PTable }) -> +delete_and_terminate(S = #s { q_table = QTable, + p_table = PTable, + n_table = NTable }) -> rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> clear_table(QTable), clear_table(PTable), S end), + mnesia:dump_tables([QTable, PTable, NTable]), rabbit_log:info(" -> ~p", [Result]), Result. @@ -882,10 +893,18 @@ m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. %% TODO: Import correct argument type. --spec db_tables(_) -> {atom(), atom(), atom()}. +%% BUG: Mnesia has undocumented restrictions on table names. Names +%% with slashes fail some operations, so we replace replace slashes +%% with the string SLASH. We should extend this as necessary, and +%% perhaps make it a little prettier. + +-spec db_tables({resource, binary(), queue, binary()}) -> + {atom(), atom(), atom()}. -db_tables(QueueName) -> - Str = lists:flatten(io_lib:format("~p", [QueueName])), +db_tables({resource, VHost, queue, Name}) -> + VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), + Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), + Str = lists:flatten(io_lib:format("~p ~p", [VHost2, Name2])), {list_to_atom(lists:append("q: ", Str)), list_to_atom(lists:append("p: ", Str)), list_to_atom(lists:append("n: ", Str))}. -- cgit v1.2.1 From e7ec3640ead7fb194cfc3053ccdb35b154019f42 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 1 Feb 2011 18:31:11 -0800 Subject: Reordered some of the code. --- src/rabbit_mnesia_queue.erl | 251 ++++++++++++++++++++++---------------------- 1 file changed, 126 insertions(+), 125 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 934c443b..28bfbbc7 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -252,7 +252,7 @@ init(QueueName, IsDurable, Recover) -> next_out_id = NextOutId0 }] -> {NextSeqId0, NextOutId0} end, - transactional_delete_nonpersistent_msgs(QTable), + delete_nonpersistent_msgs(QTable), RS = #s { q_table = QTable, p_table = PTable, n_table = NTable, @@ -265,35 +265,6 @@ init(QueueName, IsDurable, Recover) -> rabbit_log:info(" -> ~p", [Result]), Result. --spec transactional_delete_nonpersistent_msgs(atom()) -> ok. - -transactional_delete_nonpersistent_msgs(QTable) -> - lists:foreach( - fun (Key) -> - [#q_record { out_id = Key, m = M }] = - mnesia:read(QTable, Key, 'read'), - case M of - #m { msg = #basic_message { is_persistent = true }} -> ok; - _ -> mnesia:delete(QTable, Key, 'write') - end - end, - mnesia:all_keys(QTable)). - --spec create_table(atom(), atom(), atom(), [atom()]) -> ok. - -create_table(Table, RecordName, Type, Attributes) -> - case mnesia:create_table(Table, [{record_name, RecordName}, - {type, Type}, - {attributes, Attributes}, - {ram_copies, [node()]}]) of - {atomic, ok} -> ok; - {aborted, {already_exists, Table}} -> - RecordName = mnesia:table_info(Table, record_name), - Type = mnesia:table_info(Table, type), - Attributes = mnesia:table_info(Table, attributes), - ok - end. - %%---------------------------------------------------------------------------- %% terminate/1 deletes all of a queue's pending acks, prior to %% shutdown. This function creates an Mnesia transaction to run in, @@ -632,7 +603,7 @@ len(S = #s { q_table = QTable }) -> %% -spec(is_empty/1 :: (state()) -> boolean()). is_empty(S = #s { q_table = QTable }) -> - rabbit_log:info("is_empty(~n ~p)", [S]), + rabbit_log:info("is_empty(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), rabbit_log:info(" -> ~p", [Result]), @@ -709,19 +680,99 @@ status(S = #s { q_table = QTable, p_table = PTable, %% Monadic helper functions for inside transactions. %% ---------------------------------------------------------------------------- -%% db_save copies the volatile part of the state (next_seq_id and -%% next_out_id) to Mnesia. +-spec create_table(atom(), atom(), atom(), [atom()]) -> ok. --spec db_save(s()) -> ok. +create_table(Table, RecordName, Type, Attributes) -> + case mnesia:create_table(Table, [{record_name, RecordName}, + {type, Type}, + {attributes, Attributes}, + {ram_copies, [node()]}]) of + {atomic, ok} -> ok; + {aborted, {already_exists, Table}} -> + RecordName = mnesia:table_info(Table, record_name), + Type = mnesia:table_info(Table, type), + Attributes = mnesia:table_info(Table, attributes), + ok + end. -db_save(#s { n_table = NTable, - next_seq_id = NextSeqId, - next_out_id = NextOutId }) -> - ok = mnesia:write(NTable, - #n_record { key = 'n', - next_seq_id = NextSeqId, - next_out_id = NextOutId }, - 'write'). +%% Like mnesia:clear_table, but within a transaction. + +%% BUG: The write-set of the transaction may be huge if the table is +%% huge. Then again, this might not bother Mnesia. + +-spec clear_table(atom()) -> ok. + +clear_table(Table) -> + case mnesia:first(Table) of + '$end_of_table' -> ok; + Key -> mnesia:delete(Table, Key, 'write'), + clear_table(Table) + end. + +%% Delete non-persistent msgs after a restart. + +-spec delete_nonpersistent_msgs(atom()) -> ok. + +delete_nonpersistent_msgs(QTable) -> + lists:foreach( + fun (Key) -> + [#q_record { out_id = Key, m = M }] = + mnesia:read(QTable, Key, 'read'), + case M of + #m { msg = #basic_message { is_persistent = true }} -> ok; + _ -> mnesia:delete(QTable, Key, 'write') + end + end, + mnesia:all_keys(QTable)). + +-spec tx_commit_state([rabbit_types:basic_message()], + [seq_id()], + message_properties_transformer(), + s()) -> + s(). + +tx_commit_state(Pubs, SeqIds, PropsF, S) -> + {_, S1} = internal_ack(SeqIds, S), + lists:foldl( + fun ({Msg, Props}, Si) -> publish_state(Msg, Props, false, Si) end, + S1, + [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). + +-spec publish_state(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + s()) -> + s(). + +publish_state(Msg, + Props, + IsDelivered, + S = #s { q_table = QTable, + next_seq_id = SeqId, + next_out_id = OutId }) -> + M = (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, + mnesia:write(QTable, #q_record { out_id = OutId, m = M }, 'write'), + S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. + +-spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). + +internal_ack(SeqIds, S) -> db_del_ps(fun (_, Si) -> Si end, SeqIds, S). + +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), s()) + -> {empty | ok, s()}). + +internal_dropwhile(Pred, S) -> + case db_q_peek(S) of + nothing -> {empty, S}; + {just, M = #m { props = Props }} -> + case Pred(Props) of + true -> _ = db_q_pop(S), + _ = db_post_pop(false, M, S), + internal_dropwhile(Pred, S); + false -> {ok, S} + end + end. %% db_q_pop pops a msg, if any, from the Q table in Mnesia. @@ -784,80 +835,53 @@ db_del_ps(F, SeqIds, S = #s { p_table = PTable }) -> {AllGuids, S1} = lists:foldl( fun (SeqId, {Acc, Si}) -> - [#p_record { m = M }] = mnesia:read(PTable, SeqId, 'read'), + [#p_record { + m = M = #m { msg = #basic_message { guid = Guid }} }] = + mnesia:read(PTable, SeqId, 'read'), mnesia:delete(PTable, SeqId, 'write'), - {[m_guid(M) | Acc], F(M, Si)} + {[Guid | Acc], F(M, Si)} end, {[], S}, SeqIds), {lists:reverse(AllGuids), S1}. --spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). - -internal_ack(SeqIds, S) -> db_del_ps(fun (_, Si) -> Si end, SeqIds, S). - --spec(internal_dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), s()) - -> {empty | ok, s()}). - -internal_dropwhile(Pred, S) -> - case db_q_peek(S) of - nothing -> {empty, S}; - {just, M = #m { props = Props }} -> - case Pred(Props) of - true -> _ = db_q_pop(S), - _ = db_post_pop(false, M, S), - internal_dropwhile(Pred, S); - false -> {ok, S} - end - end. - --spec tx_commit_state([rabbit_types:basic_message()], - [seq_id()], - message_properties_transformer(), - s()) -> - s(). +%% db_save copies the volatile part of the state (next_seq_id and +%% next_out_id) to Mnesia. -tx_commit_state(Pubs, SeqIds, PropsF, S) -> - {_, S1} = internal_ack(SeqIds, S), - lists:foldl( - fun ({Msg, Props}, Si) -> publish_state(Msg, Props, false, Si) end, - S1, - [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). +-spec db_save(s()) -> ok. -%% Like mnesia:clear_table, but within a transaction. +db_save(#s { n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId }) -> + ok = mnesia:write(NTable, + #n_record { key = 'n', + next_seq_id = NextSeqId, + next_out_id = NextOutId }, + 'write'). -%% BUG: The write-set of the transaction may be huge if the table is -%% huge. Then again, this might not bother Mnesia. +%%---------------------------------------------------------------------------- +%% Pure helper functions. +%% ---------------------------------------------------------------------------- --spec clear_table(atom()) -> ok. +%% Convert a queue name (a record) into an Mnesia table name (an atom). -clear_table(Table) -> - case mnesia:first(Table) of - '$end_of_table' -> ok; - Key -> mnesia:delete(Table, Key, 'write'), - clear_table(Table) - end. +%% TODO: Import correct argument type. --spec publish_state(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - s()) -> - s(). +%% BUG: Mnesia has undocumented restrictions on table names. Names +%% with slashes fail some operations, so we replace replace slashes +%% with the string SLASH. We should extend this as necessary, and +%% perhaps make it a little prettier. -publish_state(Msg, - Props, - IsDelivered, - S = #s { q_table = QTable, - next_seq_id = SeqId, - next_out_id = OutId }) -> - M = (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, - mnesia:write(QTable, #q_record { out_id = OutId, m = M }, 'write'), - S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. +-spec db_tables({resource, binary(), queue, binary()}) -> + {atom(), atom(), atom()}. -%%---------------------------------------------------------------------------- -%% Pure helper functions. -%% ---------------------------------------------------------------------------- +db_tables({resource, VHost, queue, Name}) -> + VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), + Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), + Str = lists:flatten(io_lib:format("~p ~p", [VHost2, Name2])), + {list_to_atom(lists:append("q: ", Str)), + list_to_atom(lists:append("p: ", Str)), + list_to_atom(lists:append("n: ", Str))}. -spec m(rabbit_types:basic_message(), seq_id(), @@ -885,26 +909,3 @@ store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> S #s { txn_dict = dict:erase(Txn, TxnDict) }. --spec m_guid(m()) -> rabbit_guid:guid(). - -m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. - -%% Convert a queue name (a record) into an Mnesia table name (an atom). - -%% TODO: Import correct argument type. - -%% BUG: Mnesia has undocumented restrictions on table names. Names -%% with slashes fail some operations, so we replace replace slashes -%% with the string SLASH. We should extend this as necessary, and -%% perhaps make it a little prettier. - --spec db_tables({resource, binary(), queue, binary()}) -> - {atom(), atom(), atom()}. - -db_tables({resource, VHost, queue, Name}) -> - VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), - Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), - Str = lists:flatten(io_lib:format("~p ~p", [VHost2, Name2])), - {list_to_atom(lists:append("q: ", Str)), - list_to_atom(lists:append("p: ", Str)), - list_to_atom(lists:append("n: ", Str))}. -- cgit v1.2.1 From 099848fa27471dae84b104a1ebb06a9387df2175 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 2 Feb 2011 16:09:08 -0800 Subject: About to junk bug23576 --- src/rabbit_mnesia_queue.erl | 133 ++++++++++++++++++++++++-------------------- 1 file changed, 72 insertions(+), 61 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 28bfbbc7..ef98c880 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -63,8 +63,6 @@ %% TODO: Need to provide better back-pressure when queue is filling up. -%% TODO: Need to think about recovering pending acks. - %% BUG: Should not use mnesia:all_keys to count entries. %% BUG: P records do not need a separate seq_id. @@ -262,7 +260,7 @@ init(QueueName, IsDurable, Recover) -> db_save(RS), RS end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("init ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -278,7 +276,7 @@ terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> {atomic, Result} = mnesia:transaction(fun () -> clear_table(PTable), S end), mnesia:dump_tables([QTable, PTable, NTable]), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("terminate ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -299,14 +297,14 @@ delete_and_terminate(S = #s { q_table = QTable, S end), mnesia:dump_tables([QTable, PTable, NTable]), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% purge/1 deletes all of queue's enqueued msgs, and also returns the -%% count of msgs purged. This function creates an Mnesia transaction -%% to run in, and therefore may not be called from inside another -%% Mnesia transaction. +%% purge/1 deletes all of queue's enqueued msgs, generating pending +%% acks as required, and returning the count of msgs purged. This +%% function creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). @@ -314,10 +312,10 @@ purge(S = #s { q_table = QTable }) -> rabbit_log:info("purge(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), - clear_table(QTable), + internal_purge(S), {LQ, S} end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("purge ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -338,7 +336,7 @@ publish(Msg, Props, S) -> db_save(RS), RS end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("publish ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -358,7 +356,7 @@ publish(Msg, Props, S) -> publish_delivered(false, _, _, S) -> rabbit_log:info("publish_delivered(false, _, _,~n ~p) ->", [S]), Result = {blank_ack, S}, - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("publish_delivered ->~n ~p", [Result]), Result; publish_delivered(true, Msg, @@ -376,7 +374,7 @@ publish_delivered(true, db_save(RS), {SeqId, RS} end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("publish_delivered ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -398,7 +396,7 @@ dropwhile(Pred, S) -> db_save(RS), {Atom, RS} end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("dropwhile ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -411,15 +409,10 @@ dropwhile(Pred, S) -> fetch(AckRequired, S) -> rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), - {atomic, Result} = - mnesia:transaction( - fun () -> DR = case db_q_pop(S) of - nothing -> empty; - {just, M} -> db_post_pop(AckRequired, M, S) - end, - {DR, S} - end), - rabbit_log:info(" -> ~p", [Result]), + {atomic, FR} = + mnesia:transaction(fun () -> internal_fetch(AckRequired, S) end), + Result = {FR, S}, + rabbit_log:info("fetch ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -439,15 +432,15 @@ ack(SeqIds, S) -> db_save(RS), {Guids, RS} end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("ack ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% tx_publish/4 is a publish, but in the context of an AMQP -%% transaction. It stores the msg and its properties in the to_pub -%% field of the txn, waiting to be committed. This function creates an -%% Mnesia transaction to run in, and therefore may not be called from -%% inside another Mnesia transaction. +%% tx_publish/4 is a publish within an AMQP transaction. It stores the +%% msg and its properties in the to_pub field of the txn, waiting to +%% be committed. This function creates an Mnesia transaction to run +%% in, and therefore may not be called from inside another Mnesia +%% transaction. %% %% -spec(tx_publish/4 :: %% (rabbit_types:txn(), @@ -468,15 +461,14 @@ tx_publish(Txn, Msg, Props, S) -> db_save(RS), RS end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("tx_publish ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% tx_ack/3 acks, but in the context of an AMQP transaction. It stores -%% the seq_id in the acks field of the txn, waiting to be -%% committed. This function creates an Mnesia transaction to run in, -%% and therefore may not be called from inside another Mnesia -%% transaction. +%% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in +%% the acks field of the txn, waiting to be committed. This function +%% creates an Mnesia transaction to run in, and therefore may not be +%% called from inside another Mnesia transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -494,14 +486,13 @@ tx_ack(Txn, SeqIds, S) -> db_save(RS), RS end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("tx_ack ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% tx_rollback/2 undoes anything that has been done in the context of -%% the specified AMQP transaction. This function creates an Mnesia -%% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. +%% tx_rollback/2 aborts an AMQP transaction. This function creates an +%% Mnesia transaction to run in, and therefore may not be called from +%% inside another Mnesia transaction. %% %% The following spec is wrong, as a blank_ack cannot be passed back in. %% @@ -516,7 +507,7 @@ tx_rollback(Txn, S) -> db_save(RS), {SeqIds, RS} end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("tx_rollback ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -549,7 +540,7 @@ tx_commit(Txn, F, PropsF, S) -> {SeqIds, RS} end), F(), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("tx_commit ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -577,7 +568,7 @@ requeue(SeqIds, PropsF, S) -> db_save(RS), RS end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("requeue ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -591,14 +582,13 @@ len(S = #s { q_table = QTable }) -> rabbit_log:info("len(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("len ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% is_empty/1 returns true if the queue is empty, and false -%% otherwise. This function creates an Mnesia transaction to run in, -%% and therefore may not be called from inside another Mnesia -%% transaction. +%% is_empty/1 returns true iff the queue is empty. This function +%% creates an Mnesia transaction to run in, and therefore may not be +%% called from inside another Mnesia transaction. %% %% -spec(is_empty/1 :: (state()) -> boolean()). @@ -606,13 +596,13 @@ is_empty(S = #s { q_table = QTable }) -> rabbit_log:info("is_empty(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("is_empty ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% set_ram_duration_target states that the target is to have no more -%% msgs in RAM than indicated by the duration and the current queue -%% rates. It is ignored in this implementation. +%% set_ram_duration_target informs us that the target is to have no +%% more msgs in RAM than indicated by the duration and the current +%% queue rates. It is ignored in this implementation. %% %% -spec(set_ram_duration_target/2 :: %% (('undefined' | 'infinity' | number()), state()) @@ -631,10 +621,10 @@ set_ram_duration_target(_, S) -> S. ram_duration(S) -> {0, S}. %%---------------------------------------------------------------------------- -%% needs_idle_timeout/1 returns true if idle_timeout should be called +%% needs_idle_timeout/1 returns true iff idle_timeout should be called %% as soon as the queue process can manage (either on an empty -%% mailbox, or when a timer fires), and false otherwise. It always -%% returns false in this implementation. +%% mailbox, or when a timer fires). It always returns false in this +%% implementation. %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). @@ -666,14 +656,14 @@ handle_pre_hibernate(S) -> S. status(S = #s { q_table = QTable, p_table = PTable, next_seq_id = NextSeqId }) -> - rabbit_log:info("status(~n ~p)", [S]), + rabbit_log:info("status(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> LQ = length(mnesia:all_keys(QTable)), LP = length(mnesia:all_keys(PTable)), [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] end), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("status ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -695,7 +685,7 @@ create_table(Table, RecordName, Type, Attributes) -> ok end. -%% Like mnesia:clear_table, but within a transaction. +%% Like mnesia:clear_table, but within an Mnesia transaction. %% BUG: The write-set of the transaction may be huge if the table is %% huge. Then again, this might not bother Mnesia. @@ -725,6 +715,27 @@ delete_nonpersistent_msgs(QTable) -> end, mnesia:all_keys(QTable)). +%% internal_purge/1 purges all messages, generating pending acks as +%% necessary. + +-spec internal_purge(state()) -> ok. + +internal_purge(S) -> case internal_fetch(true, S) of + empty -> ok; + _ -> internal_purge(S) + end. + +%% internal_fetch/2 fetches the next msg, if any, inside a +%% transaction, generating a pending ack as necessary. + +-spec internal_fetch(ack_required(), state()) -> ok | fetch_result(). + +internal_fetch(AckRequired, S) -> + case db_q_pop(S) of + nothing -> empty; + {just, M} -> db_post_pop(AckRequired, M, S) + end. + -spec tx_commit_state([rabbit_types:basic_message()], [seq_id()], message_properties_transformer(), @@ -823,8 +834,8 @@ db_add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> ok. %% db_del_fs deletes some number of pending acks from the P table in -%% Mnesia, applying a transactional function F after each msg is -%% deleted, and returns their guids. +%% Mnesia, applying a (Mnesia transactional) function F after each msg +%% is deleted, returning their guids. -spec db_del_ps(fun (([rabbit_guid:guid()], s()) -> s()), [rabbit_guid:guid()], -- cgit v1.2.1 From 368ed334d59beb62396963d7a9a6d9b6cef19585 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 2 Feb 2011 16:36:35 -0800 Subject: Removed some leftover files from junk --- include/rabbit_auth_backend_spec.hrl | 32 ---- src/rabbit_auth_backend.erl | 61 ------- src/rabbit_auth_backend_internal.erl | 332 ----------------------------------- src/rabbit_client_sup.erl | 48 ----- src/rabbit_command_assembler.erl | 133 -------------- src/rabbit_direct.erl | 75 -------- src/rabbit_vhost.erl | 106 ----------- 7 files changed, 787 deletions(-) delete mode 100644 include/rabbit_auth_backend_spec.hrl delete mode 100644 src/rabbit_auth_backend.erl delete mode 100644 src/rabbit_auth_backend_internal.erl delete mode 100644 src/rabbit_client_sup.erl delete mode 100644 src/rabbit_command_assembler.erl delete mode 100644 src/rabbit_direct.erl delete mode 100644 src/rabbit_vhost.erl diff --git a/include/rabbit_auth_backend_spec.hrl b/include/rabbit_auth_backend_spec.hrl deleted file mode 100644 index e26d44ea..00000000 --- a/include/rabbit_auth_backend_spec.hrl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). - --spec(check_user_login/2 :: (rabbit_types:username(), [term()]) -> - {'ok', rabbit_types:user()} | - {'refused', string(), [any()]} | - {'error', any()}). --spec(check_vhost_access/3 :: (rabbit_types:user(), rabbit_types:vhost(), - rabbit_access_control:vhost_permission_atom()) -> - boolean() | {'error', any()}). --spec(check_resource_access/3 :: (rabbit_types:user(), - rabbit_types:r(atom()), - rabbit_access_control:permission_atom()) -> - boolean() | {'error', any()}). --endif. diff --git a/src/rabbit_auth_backend.erl b/src/rabbit_auth_backend.erl deleted file mode 100644 index 09820c5b..00000000 --- a/src/rabbit_auth_backend.erl +++ /dev/null @@ -1,61 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description proplist as with auth mechanisms, - %% exchanges. Currently unused. - {description, 0}, - - %% Check a user can log in, given a username and a proplist of - %% authentication information (e.g. [{password, Password}]). - %% - %% Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {error, Error} - %% Something went wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {check_user_login, 2}, - - %% Given #user, vhost path and permission, can a user access a vhost? - %% Permission is read - learn of the existence of (only relevant for - %% management plugin) - %% or write - log in - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_vhost_access, 3}, - - %% Given #user, resource and permission, can a user access a resource? - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_resource_access, 3} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_backend_internal.erl b/src/rabbit_auth_backend_internal.erl deleted file mode 100644 index a564480b..00000000 --- a/src/rabbit_auth_backend_internal.erl +++ /dev/null @@ -1,332 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend_internal). --include("rabbit.hrl"). - --behaviour(rabbit_auth_backend). - --export([description/0]). --export([check_user_login/2, check_vhost_access/3, check_resource_access/3]). - --export([add_user/2, delete_user/1, change_password/2, set_admin/1, - clear_admin/1, list_users/0, lookup_user/1, clear_password/1]). --export([make_salt/0, check_password/2, change_password_hash/2, - hash_password/1]). --export([set_permissions/5, clear_permissions/2, - list_permissions/0, list_vhost_permissions/1, list_user_permissions/1, - list_user_vhost_permissions/2]). - --include("rabbit_auth_backend_spec.hrl"). - --ifdef(use_specs). - --type(regexp() :: binary()). - --spec(add_user/2 :: (rabbit_types:username(), rabbit_types:password()) -> 'ok'). --spec(delete_user/1 :: (rabbit_types:username()) -> 'ok'). --spec(change_password/2 :: (rabbit_types:username(), rabbit_types:password()) - -> 'ok'). --spec(clear_password/1 :: (rabbit_types:username()) -> 'ok'). --spec(make_salt/0 :: () -> binary()). --spec(check_password/2 :: (rabbit_types:password(), - rabbit_types:password_hash()) -> boolean()). --spec(change_password_hash/2 :: (rabbit_types:username(), - rabbit_types:password_hash()) -> 'ok'). --spec(hash_password/1 :: (rabbit_types:password()) - -> rabbit_types:password_hash()). --spec(set_admin/1 :: (rabbit_types:username()) -> 'ok'). --spec(clear_admin/1 :: (rabbit_types:username()) -> 'ok'). --spec(list_users/0 :: () -> [{rabbit_types:username(), boolean()}]). --spec(lookup_user/1 :: (rabbit_types:username()) - -> rabbit_types:ok(rabbit_types:internal_user()) - | rabbit_types:error('not_found')). --spec(set_permissions/5 ::(rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()) -> 'ok'). --spec(clear_permissions/2 :: (rabbit_types:username(), rabbit_types:vhost()) - -> 'ok'). --spec(list_permissions/0 :: - () -> [{rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()}]). --spec(list_vhost_permissions/1 :: - (rabbit_types:vhost()) -> [{rabbit_types:username(), - regexp(), regexp(), regexp()}]). --spec(list_user_permissions/1 :: - (rabbit_types:username()) -> [{rabbit_types:vhost(), - regexp(), regexp(), regexp()}]). --spec(list_user_vhost_permissions/2 :: - (rabbit_types:username(), rabbit_types:vhost()) - -> [{regexp(), regexp(), regexp()}]). - --endif. - -%%---------------------------------------------------------------------------- - -%% Implementation of rabbit_auth_backend - -description() -> - [{name, <<"Internal">>}, - {description, <<"Internal user / password database">>}]. - -check_user_login(Username, []) -> - internal_check_user_login(Username, fun(_) -> true end); -check_user_login(Username, [{password, Password}]) -> - internal_check_user_login( - Username, - fun(#internal_user{password_hash = Hash}) -> - check_password(Password, Hash) - end); -check_user_login(Username, AuthProps) -> - exit({unknown_auth_props, Username, AuthProps}). - -internal_check_user_login(Username, Fun) -> - Refused = {refused, "user '~s' - invalid credentials", [Username]}, - case lookup_user(Username) of - {ok, User = #internal_user{is_admin = IsAdmin}} -> - case Fun(User) of - true -> {ok, #user{username = Username, - is_admin = IsAdmin, - auth_backend = ?MODULE, - impl = User}}; - _ -> Refused - end; - {error, not_found} -> - Refused - end. - -check_vhost_access(#user{is_admin = true}, _VHostPath, read) -> - true; - -check_vhost_access(#user{username = Username}, VHostPath, _) -> - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> false; - [_R] -> true - end - end). - -check_resource_access(#user{username = Username}, - #resource{virtual_host = VHostPath, name = Name}, - Permission) -> - case mnesia:dirty_read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> - false; - [#user_permission{permission = P}] -> - PermRegexp = - case element(permission_index(Permission), P) of - %% <<"^$">> breaks Emacs' erlang mode - <<"">> -> <<$^, $$>>; - RE -> RE - end, - case re:run(Name, PermRegexp, [{capture, none}]) of - match -> true; - nomatch -> false - end - end. - -permission_index(configure) -> #permission.configure; -permission_index(write) -> #permission.write; -permission_index(read) -> #permission.read. - -%%---------------------------------------------------------------------------- -%% Manipulation of the user database - -add_user(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_user, Username}) of - [] -> - ok = mnesia:write( - rabbit_user, - #internal_user{username = Username, - password_hash = - hash_password(Password), - is_admin = false}, - write); - _ -> - mnesia:abort({user_already_exists, Username}) - end - end), - rabbit_log:info("Created user ~p~n", [Username]), - R. - -delete_user(Username) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:delete({rabbit_user, Username}), - [ok = mnesia:delete_object( - rabbit_user_permission, R, write) || - R <- mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = '_'}, - permission = '_'}, - write)], - ok - end)), - rabbit_log:info("Deleted user ~p~n", [Username]), - R. - -change_password(Username, Password) -> - change_password_hash(Username, hash_password(Password)). - -clear_password(Username) -> - change_password_hash(Username, <<"">>). - -change_password_hash(Username, PasswordHash) -> - R = update_user(Username, fun(User) -> - User#internal_user{ - password_hash = PasswordHash } - end), - rabbit_log:info("Changed password for user ~p~n", [Username]), - R. - -hash_password(Cleartext) -> - Salt = make_salt(), - Hash = salted_md5(Salt, Cleartext), - <>. - -check_password(Cleartext, <>) -> - Hash =:= salted_md5(Salt, Cleartext). - -make_salt() -> - {A1,A2,A3} = now(), - random:seed(A1, A2, A3), - Salt = random:uniform(16#ffffffff), - <>. - -salted_md5(Salt, Cleartext) -> - Salted = <>, - erlang:md5(Salted). - -set_admin(Username) -> - set_admin(Username, true). - -clear_admin(Username) -> - set_admin(Username, false). - -set_admin(Username, IsAdmin) -> - R = update_user(Username, fun(User) -> - User#internal_user{is_admin = IsAdmin} - end), - rabbit_log:info("Set user admin flag for user ~p to ~p~n", - [Username, IsAdmin]), - R. - -update_user(Username, Fun) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - {ok, User} = lookup_user(Username), - ok = mnesia:write(rabbit_user, Fun(User), write) - end)). - -list_users() -> - [{Username, IsAdmin} || - #internal_user{username = Username, is_admin = IsAdmin} <- - mnesia:dirty_match_object(rabbit_user, #internal_user{_ = '_'})]. - -lookup_user(Username) -> - rabbit_misc:dirty_read({rabbit_user, Username}). - -validate_regexp(RegexpBin) -> - Regexp = binary_to_list(RegexpBin), - case re:compile(Regexp) of - {ok, _} -> ok; - {error, Reason} -> throw({error, {invalid_regexp, Regexp, Reason}}) - end. - -set_permissions(Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm) -> - lists:map(fun validate_regexp/1, [ConfigurePerm, WritePerm, ReadPerm]), - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> ok = mnesia:write( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}}, - write) - end)). - - -clear_permissions(Username, VHostPath) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> - ok = mnesia:delete({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) - end)). - -list_permissions() -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(match_user_vhost('_', '_'))]. - -list_vhost_permissions(VHostPath) -> - [{Username, ConfigurePerm, WritePerm, ReadPerm} || - {Username, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_vhost:with( - VHostPath, match_user_vhost('_', VHostPath)))]. - -list_user_permissions(Username) -> - [{VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {_, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user( - Username, match_user_vhost(Username, '_')))]. - -list_user_vhost_permissions(Username, VHostPath) -> - [{ConfigurePerm, WritePerm, ReadPerm} || - {_, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user_and_vhost( - Username, VHostPath, - match_user_vhost(Username, VHostPath)))]. - -list_permissions(QueryThunk) -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - #user_permission{user_vhost = #user_vhost{username = Username, - virtual_host = VHostPath}, - permission = #permission{ configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}} <- - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction(QueryThunk)]. - -match_user_vhost(Username, VHostPath) -> - fun () -> mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = '_'}, - read) - end. diff --git a/src/rabbit_client_sup.erl b/src/rabbit_client_sup.erl deleted file mode 100644 index dbdc6cd4..00000000 --- a/src/rabbit_client_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_client_sup). - --behaviour(supervisor2). - --export([start_link/1, start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (mfa()) -> - rabbit_types:ok_pid_or_error()). --spec(start_link/2 :: ({'local', atom()}, mfa()) -> - rabbit_types:ok_pid_or_error()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Callback) -> - supervisor2:start_link(?MODULE, Callback). - -start_link(SupName, Callback) -> - supervisor2:start_link(SupName, ?MODULE, Callback). - -init({M,F,A}) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{client, {M,F,A}, temporary, infinity, supervisor, [M]}]}}. diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl deleted file mode 100644 index 07036ce8..00000000 --- a/src/rabbit_command_assembler.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_command_assembler). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([analyze_frame/3, init/1, process/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame_type() :: ?FRAME_METHOD | ?FRAME_HEADER | ?FRAME_BODY | - ?FRAME_OOB_METHOD | ?FRAME_OOB_HEADER | ?FRAME_OOB_BODY | - ?FRAME_TRACE | ?FRAME_HEARTBEAT). --type(protocol() :: rabbit_framing:protocol()). --type(method() :: rabbit_framing:amqp_method_record()). --type(class_id() :: rabbit_framing:amqp_class_id()). --type(weight() :: non_neg_integer()). --type(body_size() :: non_neg_integer()). --type(content() :: rabbit_types:undecoded_content()). - --type(frame() :: - {'method', rabbit_framing:amqp_method_name(), binary()} | - {'content_header', class_id(), weight(), body_size(), binary()} | - {'content_body', binary()}). - --type(state() :: - {'method', protocol()} | - {'content_header', method(), class_id(), protocol()} | - {'content_body', method(), body_size(), class_id(), protocol()}). - --spec(analyze_frame/3 :: (frame_type(), binary(), protocol()) -> - frame() | 'heartbeat' | 'error'). - --spec(init/1 :: (protocol()) -> {ok, state()}). --spec(process/2 :: (frame(), state()) -> - {ok, state()} | - {ok, method(), state()} | - {ok, method(), content(), state()} | - {error, rabbit_types:amqp_error()}). - --endif. - -%%-------------------------------------------------------------------- - -analyze_frame(?FRAME_METHOD, - <>, - Protocol) -> - MethodName = Protocol:lookup_method_name({ClassId, MethodId}), - {method, MethodName, MethodFields}; -analyze_frame(?FRAME_HEADER, - <>, - _Protocol) -> - {content_header, ClassId, Weight, BodySize, Properties}; -analyze_frame(?FRAME_BODY, Body, _Protocol) -> - {content_body, Body}; -analyze_frame(?FRAME_HEARTBEAT, <<>>, _Protocol) -> - heartbeat; -analyze_frame(_Type, _Body, _Protocol) -> - error. - -init(Protocol) -> {ok, {method, Protocol}}. - -process({method, MethodName, FieldsBin}, {method, Protocol}) -> - try - Method = Protocol:decode_method_fields(MethodName, FieldsBin), - case Protocol:method_has_content(MethodName) of - true -> {ClassId, _MethodId} = Protocol:method_id(MethodName), - {ok, {content_header, Method, ClassId, Protocol}}; - false -> {ok, Method, {method, Protocol}} - end - catch exit:#amqp_error{} = Reason -> {error, Reason} - end; -process(_Frame, {method, _Protocol}) -> - unexpected_frame("expected method frame, " - "got non method frame instead", [], none); -process({content_header, ClassId, 0, 0, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, Method, Content, {method, Protocol}}; -process({content_header, ClassId, 0, BodySize, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, {content_body, Method, BodySize, Content, Protocol}}; -process({content_header, HeaderClassId, 0, _BodySize, _PropertiesBin}, - {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got one for class ~w instead", - [ClassId, HeaderClassId], Method); -process(_Frame, {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got non content header frame instead", [ClassId], Method); -process({content_body, FragmentBin}, - {content_body, Method, RemainingSize, - Content = #content{payload_fragments_rev = Fragments}, Protocol}) -> - NewContent = Content#content{ - payload_fragments_rev = [FragmentBin | Fragments]}, - case RemainingSize - size(FragmentBin) of - 0 -> {ok, Method, NewContent, {method, Protocol}}; - Sz -> {ok, {content_body, Method, Sz, NewContent, Protocol}} - end; -process(_Frame, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("expected content body, " - "got non content body frame instead", [], Method). - -%%-------------------------------------------------------------------- - -empty_content(ClassId, PropertiesBin, Protocol) -> - #content{class_id = ClassId, - properties = none, - properties_bin = PropertiesBin, - protocol = Protocol, - payload_fragments_rev = []}. - -unexpected_frame(Format, Params, Method) when is_atom(Method) -> - {error, rabbit_misc:amqp_error(unexpected_frame, Format, Params, Method)}; -unexpected_frame(Format, Params, Method) -> - unexpected_frame(Format, Params, rabbit_misc:method_record_type(Method)). diff --git a/src/rabbit_direct.erl b/src/rabbit_direct.erl deleted file mode 100644 index 3b8c9fba..00000000 --- a/src/rabbit_direct.erl +++ /dev/null @@ -1,75 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_direct). - --export([boot/0, connect/3, start_channel/5]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(boot/0 :: () -> 'ok'). --spec(connect/3 :: (binary(), binary(), binary()) -> - {'ok', {rabbit_types:user(), - rabbit_framing:amqp_table()}}). --spec(start_channel/5 :: (rabbit_channel:channel_number(), pid(), - rabbit_types:user(), rabbit_types:vhost(), pid()) -> - {'ok', pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - {ok, _} = - supervisor2:start_child( - rabbit_sup, - {rabbit_direct_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_direct_client_sup}, - {rabbit_channel_sup, start_link, []}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%%---------------------------------------------------------------------------- - -connect(Username, Password, VHost) -> - case lists:keymember(rabbit, 1, application:which_applications()) of - true -> - try rabbit_access_control:user_pass_login(Username, Password) of - #user{} = User -> - try rabbit_access_control:check_vhost_access(User, VHost) of - ok -> {ok, {User, rabbit_reader:server_properties()}} - catch - exit:#amqp_error{name = access_refused} -> - {error, access_refused} - end - catch - exit:#amqp_error{name = access_refused} -> {error, auth_failure} - end; - false -> - {error, broker_not_found_on_node} - end. - -start_channel(Number, ClientChannelPid, User, VHost, Collector) -> - {ok, _, {ChannelPid, _}} = - supervisor2:start_child( - rabbit_direct_client_sup, - [{direct, Number, ClientChannelPid, User, VHost, Collector}]), - {ok, ChannelPid}. diff --git a/src/rabbit_vhost.erl b/src/rabbit_vhost.erl deleted file mode 100644 index efebef06..00000000 --- a/src/rabbit_vhost.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_vhost). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --export([add/1, delete/1, exists/1, list/0, with/2]). - --ifdef(use_specs). - --spec(add/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(delete/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(exists/1 :: (rabbit_types:vhost()) -> boolean()). --spec(list/0 :: () -> [rabbit_types:vhost()]). --spec(with/2 :: (rabbit_types:vhost(), rabbit_misc:thunk(A)) -> A). - --endif. - -%%---------------------------------------------------------------------------- - -add(VHostPath) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_vhost, VHostPath}) of - [] -> ok = mnesia:write(rabbit_vhost, - #vhost{virtual_host = VHostPath}, - write); - [_] -> mnesia:abort({vhost_already_exists, VHostPath}) - end - end, - fun (ok, true) -> - ok; - (ok, false) -> - [rabbit_exchange:declare( - rabbit_misc:r(VHostPath, exchange, Name), - Type, true, false, false, []) || - {Name,Type} <- - [{<<"">>, direct}, - {<<"amq.direct">>, direct}, - {<<"amq.topic">>, topic}, - {<<"amq.match">>, headers}, %% per 0-9-1 pdf - {<<"amq.headers">>, headers}, %% per 0-9-1 xml - {<<"amq.fanout">>, fanout}]], - ok - end), - rabbit_log:info("Added vhost ~p~n", [VHostPath]), - R. - -delete(VHostPath) -> - %% FIXME: We are forced to delete the queues and exchanges outside - %% the TX below. Queue deletion involves sending messages to the queue - %% process, which in turn results in further mnesia actions and - %% eventually the termination of that process. Exchange deletion causes - %% notifications which must be sent outside the TX - [{ok,_} = rabbit_amqqueue:delete(Q, false, false) || - Q <- rabbit_amqqueue:list(VHostPath)], - [ok = rabbit_exchange:delete(Name, false) || - #exchange{name = Name} <- rabbit_exchange:list(VHostPath)], - R = rabbit_misc:execute_mnesia_transaction( - with(VHostPath, fun () -> - ok = internal_delete(VHostPath) - end)), - rabbit_log:info("Deleted vhost ~p~n", [VHostPath]), - R. - -internal_delete(VHostPath) -> - lists:foreach( - fun ({Username, _, _, _}) -> - ok = rabbit_auth_backend_internal:clear_permissions(Username, - VHostPath) - end, - rabbit_auth_backend_internal:list_vhost_permissions(VHostPath)), - ok = mnesia:delete({rabbit_vhost, VHostPath}), - ok. - -exists(VHostPath) -> - mnesia:dirty_read({rabbit_vhost, VHostPath}) /= []. - -list() -> - mnesia:dirty_all_keys(rabbit_vhost). - -with(VHostPath, Thunk) -> - fun () -> - case mnesia:read({rabbit_vhost, VHostPath}) of - [] -> - mnesia:abort({no_such_vhost, VHostPath}); - [_V] -> - Thunk() - end - end. -- cgit v1.2.1 From b46d70e9089f1a9e234c6802fa2828a19d3c0826 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 2 Feb 2011 17:09:06 -0800 Subject: New bug23576, from updated default. --- src/rabbit_mnesia_queue.erl | 908 ++++++++++++++++++++++++++++++++++++++++++++ src/rabbit_ram_queue.erl | 674 ++++++++++++++++++++++++++++++++ 2 files changed, 1582 insertions(+) create mode 100644 src/rabbit_mnesia_queue.erl create mode 100644 src/rabbit_ram_queue.erl diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl new file mode 100644 index 00000000..08766bc6 --- /dev/null +++ b/src/rabbit_mnesia_queue.erl @@ -0,0 +1,908 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. +%% + +-module(rabbit_mnesia_queue). + +-export( + [start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, + tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, + idle_timeout/1, handle_pre_hibernate/1, status/1]). + +%%---------------------------------------------------------------------------- +%% This is a simple implementation of the rabbit_backing_queue +%% behavior, with all msgs in Mnesia. +%% +%% This will eventually be structured as a plug-in instead of an extra +%% module in the middle of the server tree.... +%% ---------------------------------------------------------------------------- + +%%---------------------------------------------------------------------------- +%% This module wraps msgs into M records for internal use, including +%% additional information. Pending acks are also recorded as Ms. Msgs +%% and pending acks are both stored in Mnesia. +%% +%% All queues are durable in this version, and all msgs are treated as +%% persistent. (This will break some clients and some tests for +%% non-durable queues.) +%% ---------------------------------------------------------------------------- + +%% BUG: The rabbit_backing_queue_spec behaviour needs improvement. For +%% example, rabbit_amqqueue_process knows too much about the state of +%% a backing queue, even though this state may now change without its +%% knowledge. Additionally, there are points in the protocol where +%% failures can lose msgs. + +%% TODO: Need to provide better back-pressure when queue is filling up. + +%% BUG: Should not use mnesia:all_keys to count entries. + +%% BUG: P records do not need a separate seq_id. + +%% TODO: Worry about dropping txn_dict upon failure. + +-behaviour(rabbit_backing_queue). + +%% The S record is the in-RAM AMQP queue state. It contains the names +%% of three Mnesia queues; the next_seq_id and next_out_id (also +%% stored in the N table in Mnesia); and the transaction dictionary +%% (which can be dropped on a crash). + +-record(s, % The in-RAM queue state + { q_table, % The Mnesia queue table name + p_table, % The Mnesia pending-ack table name + n_table, % The Mnesia next_(seq_id, out_id) table name + next_seq_id, % The next M's seq_id + next_out_id, % The next M's out id + txn_dict % In-progress txn->tx map + }). + +%% An M record is a wrapper around a msg. It contains a seq_id, +%% assigned when the msg is published; the msg itself; the msg's +%% props, as presented by the client or as transformed by the client; +%% and an is-delivered flag, for reporting. + +-record(m, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg + msg, % The msg itself + props, % The msg properties + is_delivered % Has the msg been delivered? (for reporting) + }). + +%% A TX record is the value stored in the in-RAM txn_dict. It contains +%% a list of (msg, props) pairs to be published after the AMQP +%% transaction, in reverse order, and a list of seq_ids to ack, in any +%% order. No other write-operations are allowed in AMQP transactions, +%% and the effects of these operations are not visible to the client +%% until after the AMQP transaction commits. + +-record(tx, + { to_pub, % List of (msg, props) pairs to publish + to_ack % List of seq_ids to ack + }). + +%% A Q record is a msg stored in the Q table in Mnesia. It is indexed +%% by the out-id, which orders msgs; and contains the M itself. We +%% push Ms with a new high out_id, and pop the M with the lowest +%% out_id. (We cannot use the seq_id for ordering since msgs may be +%% requeued while keeping the same seq_id.) + +-record(q_record, % Q records in Mnesia + { out_id, % The key: The out_id + m % The value: The M + }). + +%% A P record is a pending-ack stored in the P table in Mnesia. It is +%% indexed by the seq_id, and contains the M itself. It is randomly +%% accssed by seq_id. + +-record(p_record, % P records in Mnesia + { seq_id, % The key: The seq_id + m % The value: The M + }). + +%% An N record holds counters in the single row in the N table in +%% Mnesia. It contains the next_seq_id and next_out_id from the S, so +%% that they can be recovered after a crash. They are updated on every +%% Mnesia transaction that updates them in the in-RAM S. + +-record(n_record, % next_seq_id & next_out_id record in Mnesia + { key, % The key: the atom 'n' + next_seq_id, % The Mnesia next_seq_id + next_out_id % The Mnesia next_out_id + }). + +-include("rabbit.hrl"). + +%%---------------------------------------------------------------------------- + +%% BUG: Restore -ifdef, -endif. + +%% -ifdef(use_specs). + +-type(maybe(T) :: nothing | {just, T}). + +-type(seq_id() :: non_neg_integer()). +-type(ack() :: seq_id()). + +-type(s() :: #s { q_table :: atom(), + p_table :: atom(), + n_table :: atom(), + next_seq_id :: seq_id(), + next_out_id :: non_neg_integer(), + txn_dict :: dict() }). +-type(state() :: s()). + +-type(m() :: #m { msg :: rabbit_types:basic_message(), + seq_id :: seq_id(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). + +-type(tx() :: #tx { to_pub :: [{rabbit_types:basic_message(), + rabbit_types:message_properties()}], + to_ack :: [seq_id()] }). + +-type(q_record() :: #q_record { out_id :: non_neg_integer(), + m :: m() }). + +-type(p_record() :: #p_record { seq_id :: seq_id(), + m :: m() }). + +-type(n_record() :: #n_record { key :: 'n', + next_seq_id :: seq_id(), + next_out_id :: non_neg_integer() }). + +-include("rabbit_backing_queue_spec.hrl"). + +%% -endif. + +%%---------------------------------------------------------------------------- +%% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. + +%%---------------------------------------------------------------------------- +%% start/1 promises that a list of (durable) queue names will be +%% started in the near future. This lets us perform early checking of +%% the consistency of those queues, and initialize other shared +%% resources. It is ignored in this implementation. +%% +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). + +%%---------------------------------------------------------------------------- +%% Public API +%%---------------------------------------------------------------------------- + +start(_DurableQueues) -> ok. + +%%---------------------------------------------------------------------------- +%% stop/0 tears down all state/resources upon shutdown. It might not +%% be called. It is ignored in this implementation. +%% +%% -spec(stop/0 :: () -> 'ok'). + +stop() -> ok. + +%%---------------------------------------------------------------------------- +%% init/3 creates one backing queue, returning its state. Names are +%% local to the vhost, and must be unique. This function creates +%% Mnesia transactions to run in, and therefore may not be called from +%% inside another Mnesia transaction. +%% +%% -spec(init/3 :: +%% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) +%% -> state()). + +%% BUG: We should allow clustering of the Mnesia tables. + +%% BUG: It's unfortunate that this can't all be done in a single +%% Mnesia transaction! + +init(QueueName, IsDurable, Recover) -> + rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", + [QueueName, IsDurable, Recover]), + {QTable, PTable, NTable} = db_tables(QueueName), + case Recover of + false -> _ = mnesia:delete_table(QTable), + _ = mnesia:delete_table(PTable), + _ = mnesia:delete_table(NTable); + true -> ok + end, + create_table(QTable, 'q_record', 'ordered_set', record_info(fields, + q_record)), + create_table(PTable, 'p_record', 'set', record_info(fields, p_record)), + create_table(NTable, 'n_record', 'set', record_info(fields, n_record)), + {atomic, Result} = + mnesia:transaction( + fun () -> + {NextSeqId, NextOutId} = + case mnesia:read(NTable, 'n', 'read') of + [] -> {0, 0}; + [#n_record { next_seq_id = NextSeqId0, + next_out_id = NextOutId0 }] -> + {NextSeqId0, NextOutId0} + end, + delete_nonpersistent_msgs(QTable), + RS = #s { q_table = QTable, + p_table = PTable, + n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId, + txn_dict = dict:new() }, + db_save(RS), + RS + end), + rabbit_log:info("init ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% terminate/1 deletes all of a queue's pending acks, prior to +%% shutdown. This function creates an Mnesia transaction to run in, +%% and therefore may not be called from inside another Mnesia +%% transaction. +%% +%% -spec(terminate/1 :: (state()) -> state()). + +terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> + rabbit_log:info("terminate(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction(fun () -> clear_table(PTable), S end), + mnesia:dump_tables([QTable, PTable, NTable]), + rabbit_log:info("terminate ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and +%% pending acks, prior to shutdown. This function creates an Mnesia +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. +%% +%% -spec(delete_and_terminate/1 :: (state()) -> state()). + +delete_and_terminate(S = #s { q_table = QTable, + p_table = PTable, + n_table = NTable }) -> + rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction(fun () -> clear_table(QTable), + clear_table(PTable), + S + end), + mnesia:dump_tables([QTable, PTable, NTable]), + rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% purge/1 deletes all of queue's enqueued msgs, generating pending +%% acks as required, and returning the count of msgs purged. This +%% function creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. +%% +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(S = #s { q_table = QTable }) -> + rabbit_log:info("purge(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), + internal_purge(S), + {LQ, S} + end), + rabbit_log:info("purge ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish/3 publishes a msg. This function creates an Mnesia +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. +%% +%% -spec(publish/3 :: +%% (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +publish(Msg, Props, S) -> + rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + {atomic, Result} = + mnesia:transaction(fun () -> RS = publish_state(Msg, Props, false, S), + db_save(RS), + RS + end), + rabbit_log:info("publish ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish_delivered/4 is called after a msg has been passed straight +%% out to a client because the queue is empty. We update all state +%% (e.g., next_seq_id) as if we had in fact handled the msg. This +%% function creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. +%% +%% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {ack(), state()}; +%% (false, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {undefined, state()}). + +publish_delivered(false, _, _, S) -> + rabbit_log:info("publish_delivered(false, _, _,~n ~p) ->", [S]), + Result = {blank_ack, S}, + rabbit_log:info("publish_delivered ->~n ~p", [Result]), + Result; +publish_delivered(true, + Msg, + Props, + S = #s { next_seq_id = SeqId, next_out_id = OutId }) -> + rabbit_log:info( + "publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + {atomic, Result} = + mnesia:transaction( + fun () -> + db_add_p( + (m(Msg, SeqId, Props)) #m { is_delivered = true }, S), + RS = S #s { next_seq_id = SeqId + 1, + next_out_id = OutId + 1 }, + db_save(RS), + {SeqId, RS} + end), + rabbit_log:info("publish_delivered ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% dropwhile/2 drops msgs from the head of the queue while there are +%% msgs and while the supplied predicate returns true. This function +%% creates an Mnesia transaction to run in, and therefore may not be +%% called from inside another Mnesia transaction. The supplied Pred is +%% called from inside the transaction, and therefore may not call +%% another function that creates an Mnesia transaction. +%% +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). + +dropwhile(Pred, S) -> + rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), + {atomic, {_, Result}} = + mnesia:transaction(fun () -> {Atom, RS} = internal_dropwhile(Pred, S), + db_save(RS), + {Atom, RS} + end), + rabbit_log:info("dropwhile ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% fetch/2 produces the next msg, if any. This function creates an +%% Mnesia transaction to run in, and therefore may not be called from +%% inside another Mnesia transaction. +%% +%% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; +%% (false, state()) -> {fetch_result(undefined), state()}). + +fetch(AckRequired, S) -> + rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), + {atomic, FR} = + mnesia:transaction(fun () -> internal_fetch(AckRequired, S) end), + Result = {FR, S}, + rabbit_log:info("fetch ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% ack/2 acknowledges msgs named by SeqIds, mapping SeqIds to guids +%% upon return. This function creates an Mnesia transaction to run in, +%% and therefore may not be called from inside another Mnesia +%% transaction. +%% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% +%% -spec(ack/2 :: ([ack()], state()) -> state()). + +ack(SeqIds, S) -> + rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), + {atomic, Result} = + mnesia:transaction(fun () -> {Guids, RS} = internal_ack(SeqIds, S), + db_save(RS), + {Guids, RS} + end), + rabbit_log:info("ack ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_publish/4 is a publish within an AMQP transaction. It stores the +%% msg and its properties in the to_pub field of the txn, waiting to +%% be committed. This function creates an Mnesia transaction to run +%% in, and therefore may not be called from inside another Mnesia +%% transaction. +%% +%% -spec(tx_publish/4 :: +%% (rabbit_types:txn(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +tx_publish(Txn, Msg, Props, S) -> + rabbit_log:info( + "tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), + {atomic, Result} = + mnesia:transaction( + fun () -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), + RS = store_tx(Txn, + Tx #tx { to_pub = [{Msg, Props} | Pubs] }, + S), + db_save(RS), + RS + end), + rabbit_log:info("tx_publish ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in +%% the acks field of the txn, waiting to be committed. This function +%% creates an Mnesia transaction to run in, and therefore may not be +%% called from inside another Mnesia transaction. +%% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). + +tx_ack(Txn, SeqIds, S) -> + rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), + {atomic, Result} = + mnesia:transaction( + fun () -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), + RS = store_tx(Txn, + Tx #tx { + to_ack = lists:append(SeqIds, SeqIds0) }, + S), + db_save(RS), + RS + end), + rabbit_log:info("tx_ack ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_rollback/2 aborts an AMQP transaction. This function creates an +%% Mnesia transaction to run in, and therefore may not be called from +%% inside another Mnesia transaction. +%% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + +tx_rollback(Txn, S) -> + rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), + {atomic, Result} = + mnesia:transaction(fun () -> + #tx { to_ack = SeqIds } = lookup_tx(Txn, S), + RS = erase_tx(Txn, S), + db_save(RS), + {SeqIds, RS} + end), + rabbit_log:info("tx_rollback ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_commit/4 commits an AMQP transaction. The F passed in is called +%% once the msgs have really been commited. This CPS permits the +%% possibility of commit coalescing. This function creates an Mnesia +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. However, the supplied F is called +%% outside the transaction. +%% +%% The following spec is wrong, as blank_acks cannot be returned. +%% +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), +%% fun (() -> any()), +%% message_properties_transformer(), +%% state()) +%% -> {[ack()], state()}). + +tx_commit(Txn, F, PropsF, S) -> + rabbit_log:info( + "tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), + {atomic, Result} = + mnesia:transaction( + fun () -> + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), + RS = + tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S)), + db_save(RS), + {SeqIds, RS} + end), + F(), + rabbit_log:info("tx_commit ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% requeue/3 reinserts msgs into the queue that have already been +%% delivered and were pending acknowledgement. This function creates +%% an Mnesia transaction to run in, and therefore may not be called +%% from inside another Mnesia transaction. +%% +%% The following spec is wrong, as blank_acks cannot be passed back in. +%% +%% -spec(requeue/3 :: +%% ([ack()], message_properties_transformer(), state()) -> state()). + +requeue(SeqIds, PropsF, S) -> + rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), + {atomic, Result} = + mnesia:transaction( + fun () -> {_, RS} = + db_del_ps( + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) + end, + SeqIds, + S), + db_save(RS), + RS + end), + rabbit_log:info("requeue ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% len/1 returns the queue length. This function creates an Mnesia +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. +%% +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(S = #s { q_table = QTable }) -> + rabbit_log:info("len(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), + rabbit_log:info("len ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% is_empty/1 returns true iff the queue is empty. This function +%% creates an Mnesia transaction to run in, and therefore may not be +%% called from inside another Mnesia transaction. +%% +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(S = #s { q_table = QTable }) -> + rabbit_log:info("is_empty(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), + rabbit_log:info("is_empty ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% set_ram_duration_target informs us that the target is to have no +%% more msgs in RAM than indicated by the duration and the current +%% queue rates. It is ignored in this implementation. +%% +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) +%% -> state()). + +set_ram_duration_target(_, S) -> S. + +%%---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the msgs in RAM represent given the current rates of the +%% queue. It is a dummy in this implementation. +%% +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). + +ram_duration(S) -> {0, S}. + +%%---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns true iff idle_timeout should be called +%% as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires). It always returns false in this +%% implementation. +%% +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +needs_idle_timeout(_) -> false. + +%%---------------------------------------------------------------------------- +%% idle_timeout/1 is called (eventually) after needs_idle_timeout +%% returns true. It is a dummy in this implementation. +%% +%% -spec(idle_timeout/1 :: (state()) -> state()). + +idle_timeout(S) -> S. + +%%---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. It is a dummy in this implementation. +%% +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). + +handle_pre_hibernate(S) -> S. + +%%---------------------------------------------------------------------------- +%% status/1 exists for debugging and operational purposes, to be able +%% to expose state via rabbitmqctl. This function creates an Mnesia +%% transaction to run in, and therefore may not be called from inside +%% another Mnesia transaction. +%% +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(S = #s { q_table = QTable, p_table = PTable, + next_seq_id = NextSeqId }) -> + rabbit_log:info("status(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction( + fun () -> LQ = length(mnesia:all_keys(QTable)), + LP = length(mnesia:all_keys(PTable)), + [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] + end), + rabbit_log:info("status ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% Monadic helper functions for inside transactions. +%% ---------------------------------------------------------------------------- + +-spec create_table(atom(), atom(), atom(), [atom()]) -> ok. + +create_table(Table, RecordName, Type, Attributes) -> + case mnesia:create_table(Table, [{record_name, RecordName}, + {type, Type}, + {attributes, Attributes}, + {ram_copies, [node()]}]) of + {atomic, ok} -> ok; + {aborted, {already_exists, Table}} -> + RecordName = mnesia:table_info(Table, record_name), + Type = mnesia:table_info(Table, type), + Attributes = mnesia:table_info(Table, attributes), + ok + end. + +%% Like mnesia:clear_table, but within an Mnesia transaction. + +%% BUG: The write-set of the transaction may be huge if the table is +%% huge. Then again, this might not bother Mnesia. + +-spec clear_table(atom()) -> ok. + +clear_table(Table) -> + case mnesia:first(Table) of + '$end_of_table' -> ok; + Key -> mnesia:delete(Table, Key, 'write'), + clear_table(Table) + end. + +%% Delete non-persistent msgs after a restart. + +-spec delete_nonpersistent_msgs(atom()) -> ok. + +delete_nonpersistent_msgs(QTable) -> + lists:foreach( + fun (Key) -> + [#q_record { out_id = Key, m = M }] = + mnesia:read(QTable, Key, 'read'), + case M of + #m { msg = #basic_message { is_persistent = true }} -> ok; + _ -> mnesia:delete(QTable, Key, 'write') + end + end, + mnesia:all_keys(QTable)). + +%% internal_purge/1 purges all messages, generating pending acks as +%% necessary. + +-spec internal_purge(state()) -> ok. + +internal_purge(S) -> case internal_fetch(true, S) of + empty -> ok; + _ -> internal_purge(S) + end. + +%% internal_fetch/2 fetches the next msg, if any, inside a +%% transaction, generating a pending ack as necessary. + +-spec internal_fetch(boolean(), state()) -> ok | fetch_result(ack()). + +internal_fetch(AckRequired, S) -> + case db_q_pop(S) of + nothing -> empty; + {just, M} -> db_post_pop(AckRequired, M, S) + end. + +-spec tx_commit_state([rabbit_types:basic_message()], + [seq_id()], + message_properties_transformer(), + s()) -> + s(). + +tx_commit_state(Pubs, SeqIds, PropsF, S) -> + {_, S1} = internal_ack(SeqIds, S), + lists:foldl( + fun ({Msg, Props}, Si) -> publish_state(Msg, Props, false, Si) end, + S1, + [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). + +-spec publish_state(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + s()) -> + s(). + +publish_state(Msg, + Props, + IsDelivered, + S = #s { q_table = QTable, + next_seq_id = SeqId, + next_out_id = OutId }) -> + M = (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, + mnesia:write(QTable, #q_record { out_id = OutId, m = M }, 'write'), + S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. + +-spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). + +internal_ack(SeqIds, S) -> db_del_ps(fun (_, Si) -> Si end, SeqIds, S). + +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), s()) + -> {empty | ok, s()}). + +internal_dropwhile(Pred, S) -> + case db_q_peek(S) of + nothing -> {empty, S}; + {just, M = #m { props = Props }} -> + case Pred(Props) of + true -> _ = db_q_pop(S), + _ = db_post_pop(false, M, S), + internal_dropwhile(Pred, S); + false -> {ok, S} + end + end. + +%% db_q_pop pops a msg, if any, from the Q table in Mnesia. + +-spec db_q_pop(s()) -> maybe(m()). + +db_q_pop(#s { q_table = QTable }) -> + case mnesia:first(QTable) of + '$end_of_table' -> nothing; + OutId -> [#q_record { out_id = OutId, m = M }] = + mnesia:read(QTable, OutId, 'read'), + mnesia:delete(QTable, OutId, 'write'), + {just, M} + end. + +%% db_q_peek returns the first msg, if any, from the Q table in +%% Mnesia. + +-spec db_q_peek(s()) -> maybe(m()). + +db_q_peek(#s { q_table = QTable }) -> + case mnesia:first(QTable) of + '$end_of_table' -> nothing; + OutId -> [#q_record { out_id = OutId, m = M }] = + mnesia:read(QTable, OutId, 'read'), + {just, M} + end. + +%% db_post_pop operates after db_q_pop, calling db_add_p if necessary. + +-spec db_post_pop/3 :: (boolean(), m(), s()) -> fetch_result(ack()). + +db_post_pop(AckRequired, + M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + S = #s { q_table = QTable }) -> + LQ = length(mnesia:all_keys(QTable)), + Ack = case AckRequired of + true -> db_add_p(M #m { is_delivered = true }, S), SeqId; + false -> blank_ack + end, + {Msg, IsDelivered, Ack, LQ}. + +%% db_add_p adds a pending ack to the P table in Mnesia. + +-spec db_add_p(m(), s()) -> ok. + +db_add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> + mnesia:write(PTable, #p_record { seq_id = SeqId, m = M }, 'write'), + ok. + +%% db_del_fs deletes some number of pending acks from the P table in +%% Mnesia, applying a (Mnesia transactional) function F after each msg +%% is deleted, returning their guids. + +-spec db_del_ps(fun (([rabbit_guid:guid()], s()) -> s()), + [rabbit_guid:guid()], + s()) -> + {[rabbit_guid:guid()], s()}. + +db_del_ps(F, SeqIds, S = #s { p_table = PTable }) -> + {AllGuids, S1} = + lists:foldl( + fun (SeqId, {Acc, Si}) -> + [#p_record { + m = M = #m { msg = #basic_message { guid = Guid }} }] = + mnesia:read(PTable, SeqId, 'read'), + mnesia:delete(PTable, SeqId, 'write'), + {[Guid | Acc], F(M, Si)} + end, + {[], S}, + SeqIds), + {lists:reverse(AllGuids), S1}. + +%% db_save copies the volatile part of the state (next_seq_id and +%% next_out_id) to Mnesia. + +-spec db_save(s()) -> ok. + +db_save(#s { n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId }) -> + ok = mnesia:write(NTable, + #n_record { key = 'n', + next_seq_id = NextSeqId, + next_out_id = NextOutId }, + 'write'). + +%%---------------------------------------------------------------------------- +%% Pure helper functions. +%% ---------------------------------------------------------------------------- + +%% Convert a queue name (a record) into an Mnesia table name (an atom). + +%% TODO: Import correct argument type. + +%% BUG: Mnesia has undocumented restrictions on table names. Names +%% with slashes fail some operations, so we replace replace slashes +%% with the string SLASH. We should extend this as necessary, and +%% perhaps make it a little prettier. + +-spec db_tables({resource, binary(), queue, binary()}) -> + {atom(), atom(), atom()}. + +db_tables({resource, VHost, queue, Name}) -> + VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), + Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), + Str = lists:flatten(io_lib:format("~p ~p", [VHost2, Name2])), + {list_to_atom(lists:append("q: ", Str)), + list_to_atom(lists:append("p: ", Str)), + list_to_atom(lists:append("n: ", Str))}. + +-spec m(rabbit_types:basic_message(), + seq_id(), + rabbit_types:message_properties()) -> + m(). + +m(Msg, SeqId, Props) -> + #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. + +-spec lookup_tx(rabbit_types:txn(), s()) -> tx(). + +lookup_tx(Txn, #s { txn_dict = TxnDict }) -> + case dict:find(Txn, TxnDict) of + error -> #tx { to_pub = [], to_ack = [] }; + {ok, Tx} -> Tx + end. + +-spec store_tx(rabbit_types:txn(), tx(), s()) -> s(). + +store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. + +-spec erase_tx(rabbit_types:txn(), s()) -> s(). + +erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:erase(Txn, TxnDict) }. + diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl new file mode 100644 index 00000000..4d643595 --- /dev/null +++ b/src/rabbit_ram_queue.erl @@ -0,0 +1,674 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. +%% + +-module(rabbit_ram_queue). + +-export( + [start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, + tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, + idle_timeout/1, handle_pre_hibernate/1, status/1]). + +%%---------------------------------------------------------------------------- +%% This is a simple implementation of the rabbit_backing_queue +%% behavior, with all msgs in RAM. +%% +%% This will eventually be structured as a plug-in instead of an extra +%% module in the middle of the server tree.... +%% ---------------------------------------------------------------------------- + +%%---------------------------------------------------------------------------- +%% This module wraps messages into M records for internal use, +%% containing the messages themselves and additional +%% information. Pending acks are also recorded in memory as M records. +%% +%% All queues are non-durable in this version, and all messages are +%% transient (non-persistent). (This breaks some Java tests for +%% durable queues.) +%%---------------------------------------------------------------------------- + +-behaviour(rabbit_backing_queue). + +-record(s, % The in-RAM queue state + { q, % A temporary in-RAM queue of Ms + next_seq_id, % The next seq_id to use to build an M + pending_ack_dict, % Map from seq_id to M, pending ack + txn_dict % Map from txn to tx, in progress + }). + +-record(m, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg + msg, % The msg itself + props, % The message properties + is_delivered % Has the msg been delivered? (for reporting) + }). + +-record(tx, + { to_pub, + to_ack }). + +-include("rabbit.hrl"). + +%%---------------------------------------------------------------------------- + +%% BUG: Restore -ifdef, -endif. + +%% -ifdef(use_specs). + +-type(seq_id() :: non_neg_integer()). +-type(ack() :: seq_id()). + +-type(s() :: #s { q :: queue(), + next_seq_id :: seq_id(), + pending_ack_dict :: dict() }). +-type(state() :: s()). + +-type(m() :: #m { msg :: rabbit_types:basic_message(), + seq_id :: seq_id(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). + +-type(tx() :: #tx { to_pub :: [{rabbit_types:basic_message(), + rabbit_types:message_properties()}], + to_ack :: [seq_id()] }). + +-include("rabbit_backing_queue_spec.hrl"). + +%% -endif. + +%%---------------------------------------------------------------------------- +%% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. + +%%---------------------------------------------------------------------------- +%% start/1 promises that a list of (durable) queue names will be +%% started in the near future. This lets us perform early checking +%% necessary for the consistency of those queues or initialise other +%% shared resources. +%% +%% This function should be called only from outside this module. +%% +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). + +%%---------------------------------------------------------------------------- +%% Public API +%%---------------------------------------------------------------------------- + +start(_DurableQueues) -> + rabbit_log:info("start(_) ->"), + rabbit_log:info(" -> ok"), + ok. + +%%---------------------------------------------------------------------------- +%% stop/0 tears down all state/resources upon shutdown. It might not +%% be called. +%% +%% This function should be called only from outside this module. +%% +%% -spec(stop/0 :: () -> 'ok'). + +stop() -> + rabbit_log:info("stop(_) ->"), + rabbit_log:info(" -> ok"), + ok. + +%%---------------------------------------------------------------------------- +%% init/3 creates one backing queue, returning its state. Names are +%% local to the vhost, and need not be unique. +%% +%% -spec(init/3 :: +%% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) +%% -> state()). +%% +%% This function should be called only from outside this module. + +%% BUG: Need to provide better back-pressure when queue is filling up. + +init(QueueName, _IsDurable, _Recover) -> + rabbit_log:info("init(~p, _, _) ->", [QueueName]), + Result = #s { q = queue:new(), + next_seq_id = 0, + pending_ack_dict = dict:new(), + txn_dict = dict:new() }, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% terminate/1 is called on queue shutdown when the queue isn't being +%% deleted. +%% +%% This function should be called only from outside this module. +%% +%% -spec(terminate/1 :: (state()) -> state()). + +terminate(S) -> + Result = remove_acks_state(S), + rabbit_log:info("terminate(~p) ->", [S]), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% delete_and_terminate/1 is called when the queue is terminating and +%% needs to delete all its content. The only difference between purge +%% and delete is that delete also needs to delete everything that's +%% been delivered and not ack'd. +%% +%% This function should be called only from outside this module. +%% +%% -spec(delete_and_terminate/1 :: (state()) -> state()). + +%% the only difference between purge and delete is that delete also +%% needs to delete everything that's been delivered and not ack'd. + +delete_and_terminate(S) -> + rabbit_log:info("delete_and_terminate(~p) ->", [S]), + Result = remove_acks_state(S #s { q = queue:new() }), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% purge/1 removes all messages in the queue, but not messages which +%% have been fetched and are pending acks. +%% +%% This function should be called only from outside this module. +%% +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(S = #s { q = Q }) -> + rabbit_log:info("purge(~p) ->", [S]), + Result = {queue:len(Q), S #s { q = queue:new() }}, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish/3 publishes a message. +%% +%% This function should be called only from outside this module. All +%% msgs are silently reated as non-persistent. +%% +%% -spec(publish/3 :: +%% (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +publish(Msg, Props, S) -> + rabbit_log:info("publish("), + rabbit_log:info(" ~p,", [Msg]), + rabbit_log:info(" ~p,", [Props]), + rabbit_log:info(" ~p) ->", [S]), + Result = publish_state(Msg, Props, false, S), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish_delivered/4 is called for messages which have already been +%% passed straight out to a client. The queue will be empty for these +%% calls (i.e. saves the round trip through the backing queue). All +%% msgs are silently treated as non-persistent. +%% +%% This function should be called only from outside this module. +%% +%% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {ack(), state()}; +%% (false, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {undefined, state()}). + +publish_delivered(false, _, _, S) -> + rabbit_log:info("publish_delivered(false, _, _,"), + rabbit_log:info(" ~p) ->", [S]), + Result = {undefined, S}, + rabbit_log:info(" -> ~p", [Result]), + Result; +publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> + rabbit_log:info("publish_delivered(true, "), + rabbit_log:info(" ~p,", [Msg]), + rabbit_log:info(" ~p,", [Props]), + rabbit_log:info(" ~p) ->", [S]), + Result = + {SeqId, + (record_pending_ack_state( + ((m(Msg, SeqId, Props)) #m { is_delivered = true }), S)) + #s { next_seq_id = SeqId + 1 }}, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% dropwhile/2 drops messages from the head of the queue while the +%% supplied predicate returns true. +%% +%% This function should be called only from outside this module. +%% +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). + +dropwhile(Pred, S) -> + rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), + {_, S1} = dropwhile_state(Pred, S), + Result = S1, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% fetch/2 produces the next message. +%% +%% This function should be called only from outside this module. +%% +%% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; +%% (false, state()) -> {fetch_result(undefined), state()}). + +fetch(AckRequired, S) -> + rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), + Result = + internal_queue_out( + fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, S), + rabbit_log:info(" -> ~p", [Result]), + Result. + +-spec internal_queue_out(fun ((m(), state()) -> T), state()) -> + {empty, state()} | T. + +internal_queue_out(F, S = #s { q = Q }) -> + case queue:out(Q) of + {empty, _} -> {empty, S}; + {{value, M}, Qa} -> F(M, S #s { q = Qa }) + end. + +-spec internal_fetch/3 :: (boolean(), m(), s()) -> {fetch_result(ack()), s()}. + +internal_fetch(AckRequired, + M = #m { + seq_id = SeqId, + msg = Msg, + is_delivered = IsDelivered }, + S = #s { q = Q }) -> + {Ack, S1} = + case AckRequired of + true -> + {SeqId, + record_pending_ack_state( + M #m { is_delivered = true }, S)}; + false -> {blank_ack, S} + end, + {{Msg, IsDelivered, Ack, queue:len(Q)}, S1}. + +%%---------------------------------------------------------------------------- +%% ack/2 acknowledges messages names by SeqIds. Maps SeqIds to guids +%% upon return. +%% +%% This function should be called only from outside this module. +%% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% +%% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). + +ack(SeqIds, S) -> + rabbit_log:info("ack("), + rabbit_log:info("~p,", [SeqIds]), + rabbit_log:info(" ~p) ->", [S]), + {Guids, S1} = internal_ack(SeqIds, S), + Result = {Guids, S1}, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_publish/4 is a publish, but in the context of a transaction. It +%% stores the message and its properties in the to_pub field of the txn, +%% waiting to be committed. +%% +%% This function should be called only from outside this module. +%% +%% -spec(tx_publish/4 :: +%% (rabbit_types:txn(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +tx_publish(Txn, Msg, Props, S) -> + rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), + Result = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_ack/3 acks, but in the context of a transaction. It stores the +%% seq_id in the acks field of the txn, waiting to be committed. +%% +%% This function should be called only from outside this module. +%% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). + +tx_ack(Txn, SeqIds, S) -> + rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), + Result = + store_tx(Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_rollback/2 undoes anything which has been done in the context of +%% the specified transaction. It returns the state with to_pub and +%% to_ack erased. +%% +%% This function should be called only from outside this module. +%% +%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + +tx_rollback(Txn, S) -> + rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), + #tx { to_ack = SeqIds } = lookup_tx(Txn, S), + Result = {SeqIds, erase_tx(Txn, S)}, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_commit/4 commits a transaction. The F passed in must be called +%% once the messages have really been commited. This CPS permits the +%% possibility of commit coalescing. +%% +%% This function should be called only from outside this module. +%% +%% The following spec is wrong, blank_acks cannot be returned. +%% +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), +%% fun (() -> any()), +%% message_properties_transformer(), +%% state()) +%% -> {[ack()], state()}). + +tx_commit(Txn, F, PropsF, S) -> + rabbit_log:info( + "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), + Result = {SeqIds, tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S))}, + F(), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% requeue/3 reinserts messages into the queue which have already been +%% delivered and were pending acknowledgement. +%% +%% This function should be called only from outside this module. +%% +%% The following spec is wrong, as blank_acks cannot be passed back in. +%% +%% -spec(requeue/3 :: +%% ([ack()], message_properties_transformer(), state()) -> state()). + +requeue(SeqIds, PropsF, S) -> + rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), + {_, S1} = + internal_ack3( + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) + end, + SeqIds, + S), + Result = S1, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% len/1 returns the queue length. +%% +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(#s { q = Q }) -> +% rabbit_log:info("len(~p) ->", [Q]), + Result = queue:len(Q), +% rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% is_empty/1 returns 'true' if the queue is empty, and 'false' +%% otherwise. +%% +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(#s { q = Q }) -> +% rabbit_log:info("is_empty(~p)", [Q]), + Result = queue:is_empty(Q), +% rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% For the next two functions, the assumption is that you're +%% monitoring something like the ingress and egress rates of the +%% queue. The RAM duration is thus the length of time represented by +%% the messages held in RAM given the current rates. If you want to +%% ignore all of this stuff, then do so, and return 0 in +%% ram_duration/1. + +%% set_ram_duration_target states that the target is to have no more +%% messages in RAM than indicated by the duration and the current +%% queue rates. +%% +%% This function should be called only from outside this module. +%% +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) +%% -> state()). + +set_ram_duration_target(_, S) -> + rabbit_log:info("set_ram_duration_target(_~p) ->", [S]), + Result = S, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the messages in RAM represent given the current rates of +%% the queue. +%% +%% This function should be called only from outside this module. +%% +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). + +ram_duration(S) -> + rabbit_log:info("ram_duration(~p) ->", [S]), + Result = {0, S}, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be +%% called as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires), and 'false' otherwise. +%% +%% This function should be called only from outside this module. +%% +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +needs_idle_timeout(_) -> + rabbit_log:info("needs_idle_timeout(_) ->"), + Result = false, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% idle_timeout/1 is called (eventually) after needs_idle_timeout returns +%% 'true'. Note this may be called more than once for each 'true' +%% returned from needs_idle_timeout. +%% +%% This function should be called only from outside this module. +%% +%% -spec(idle_timeout/1 :: (state()) -> state()). + +idle_timeout(S) -> + rabbit_log:info("idle_timeout(~p) ->", [S]), + Result = S, + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. +%% +%% This function should be called only from outside this module. +%% +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). + +handle_pre_hibernate(S) -> + Result = S, + rabbit_log:info("handle_pre_hibernate(~p) ->", [S]), + rabbit_log:info(" -> ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% status/1 exists for debugging purposes, to be able to expose state +%% via rabbitmqctl list_queues backing_queue_status +%% +%% This function should be called only from outside this module. +%% +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(#s { q = Q, + next_seq_id = NextSeqId, + pending_ack_dict = PAD }) -> + rabbit_log:info("status(_) ->"), + Result = [{len, queue:len(Q)}, + {next_seq_id, NextSeqId}, + {acks, dict:size(PAD)}], + rabbit_log:info(" ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% Various helpers +%%---------------------------------------------------------------------------- + +-spec(dropwhile_state/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), s()) + -> {empty | ok, s()}). + +dropwhile_state(Pred, S) -> + internal_queue_out( + fun (M = #m { props = Props }, Si = #s { q = Q }) -> + case Pred(Props) of + true -> + {_, Si1} = internal_fetch(false, M, Si), + dropwhile_state(Pred, Si1); + false -> {ok, Si #s {q = queue:in_r(M, Q) }} + end + end, + S). + +-spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). + +internal_ack(SeqIds, S) -> + internal_ack3(fun (_, Si) -> Si end, SeqIds, S). + +-spec tx_commit_state([rabbit_types:basic_message()], + [seq_id()], + message_properties_transformer(), + s()) -> + s(). + +tx_commit_state(Pubs, SeqIds, PropsF, S) -> + {_, S1} = internal_ack(SeqIds, S), + lists:foldl( + fun ({Msg, Props}, Si) -> publish_state(Msg, Props, false, Si) end, + S1, + [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). + +-spec m(rabbit_types:basic_message(), + seq_id(), + rabbit_types:message_properties()) -> + m(). + +m(Msg, SeqId, Props) -> + #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. + +-spec lookup_tx(rabbit_types:txn(), state()) -> tx(). + +lookup_tx(Txn, #s { txn_dict = TxnDict }) -> + case dict:find(Txn, TxnDict) of + error -> #tx { to_pub = [], to_ack = [] }; + {ok, Tx} -> Tx + end. + +-spec store_tx(rabbit_types:txn(), tx(), state()) -> state(). + +store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. + +-spec erase_tx(rabbit_types:txn(), state()) -> state(). + +erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:erase(Txn, TxnDict) }. + +-spec publish_state(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + s()) -> + s(). + +publish_state(Msg, + Props, + IsDelivered, + S = #s { q = Q, next_seq_id = SeqId }) -> + S #s { + q = queue:in( + (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), + next_seq_id = SeqId + 1 }. + +-spec record_pending_ack_state(m(), s()) -> s(). + +record_pending_ack_state(M = #m { seq_id = SeqId }, + S = #s { pending_ack_dict = PAD }) -> + S #s { pending_ack_dict = dict:store(SeqId, M, PAD) }. + +% -spec remove_acks_state(s()) -> s(). + +remove_acks_state(S = #s { pending_ack_dict = PAD }) -> + _ = dict:fold(fun (_, M, Acc) -> [m_guid(M) | Acc] end, [], PAD), + S #s { pending_ack_dict = dict:new() }. + +-spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), + [rabbit_guid:guid()], + s()) -> + {[rabbit_guid:guid()], s()}. + +internal_ack3(_, [], S) -> {[], S}; +internal_ack3(F, SeqIds, S) -> + {AllGuids, S1} = + lists:foldl( + fun (SeqId, {Acc, Si = #s { pending_ack_dict = PAD }}) -> + M = dict:fetch(SeqId, PAD), + {[m_guid(M) | Acc], + F(M, Si #s { pending_ack_dict = dict:erase(SeqId, PAD)})} + end, + {[], S}, + SeqIds), + {lists:reverse(AllGuids), S1}. + +-spec m_guid(m()) -> rabbit_guid:guid(). + +m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. -- cgit v1.2.1 From a4629a4355e02787cf1ff9cad17163418685fe3d Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 3 Feb 2011 15:18:50 +0000 Subject: Make connection startup handshake ordering more obvious --- src/rabbit_reader.erl | 53 ++++++++++++++++++++++++++++++--------------------- 1 file changed, 31 insertions(+), 22 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 475c415e..ed919d71 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -387,6 +387,15 @@ switch_callback(State, Callback, Length) -> State#v1.sock, Length, infinity) end), State#v1{callback = Callback, recv_length = Length, recv_ref = Ref}. +next_connection_state(State = #v1{connection_state = CS}) -> + State#v1{connection_state = next_connection_state1(CS)}. + +next_connection_state1(pre_init) -> starting; +next_connection_state1(starting) -> securing; +next_connection_state1(securing) -> tuning; +next_connection_state1(tuning) -> opening; +next_connection_state1(opening) -> running. + terminate(Explanation, State) when ?IS_RUNNING(State) -> {normal, send_exception(State, 0, rabbit_misc:amqp_error( @@ -650,11 +659,11 @@ start_connection({ProtocolMajor, ProtocolMinor, _ProtocolRevision}, mechanisms = auth_mechanisms_binary(), locales = <<"en_US">> }, ok = send_on_channel0(Sock, Start, Protocol), - switch_callback(State#v1{connection = Connection#connection{ - timeout_sec = ?NORMAL_TIMEOUT, - protocol = Protocol}, - connection_state = starting}, - frame_header, 7). + switch_callback( + next_connection_state( + State#v1{connection = Connection#connection{ + timeout_sec = ?NORMAL_TIMEOUT, + protocol = Protocol}}), frame_header, 7). refuse_connection(Sock, Exception) -> ok = inet_op(fun () -> rabbit_net:send(Sock, <<"AMQP",0,0,9,1>>) end), @@ -700,12 +709,12 @@ handle_method0(#'connection.start_ok'{mechanism = Mechanism, connection = Connection, sock = Sock}) -> AuthMechanism = auth_mechanism_to_module(Mechanism), - State = State0#v1{auth_mechanism = AuthMechanism, - auth_state = AuthMechanism:init(Sock), - connection_state = securing, - connection = - Connection#connection{ - client_properties = ClientProperties}}, + State = next_connection_state( + State0#v1{auth_mechanism = AuthMechanism, + auth_state = AuthMechanism:init(Sock), + connection = + Connection#connection{ + client_properties = ClientProperties}}), auth_phase(Response, State); handle_method0(#'connection.secure_ok'{response = Response}, @@ -733,11 +742,11 @@ handle_method0(#'connection.tune_ok'{frame_max = FrameMax, ReceiveFun = fun() -> Parent ! timeout end, Heartbeater = SHF(Sock, ClientHeartbeat, SendFun, ClientHeartbeat, ReceiveFun), - State#v1{connection_state = opening, - connection = Connection#connection{ - timeout_sec = ClientHeartbeat, - frame_max = FrameMax}, - heartbeater = Heartbeater} + next_connection_state( + State#v1{connection = Connection#connection{ + timeout_sec = ClientHeartbeat, + frame_max = FrameMax}, + heartbeater = Heartbeater}) end; handle_method0(#'connection.open'{virtual_host = VHostPath}, @@ -751,10 +760,10 @@ handle_method0(#'connection.open'{virtual_host = VHostPath}, ok = rabbit_access_control:check_vhost_access(User, VHostPath), NewConnection = Connection#connection{vhost = VHostPath}, ok = send_on_channel0(Sock, #'connection.open_ok'{}, Protocol), - State1 = internal_conserve_memory( - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - State#v1{connection_state = running, - connection = NewConnection}), + State1 = next_connection_state( + internal_conserve_memory( + rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), + State#v1{connection = NewConnection})), rabbit_event:notify(connection_created, infos(?CREATION_EVENT_KEYS, State1)), rabbit_event:if_enabled(StatsTimer, @@ -837,8 +846,8 @@ auth_phase(Response, frame_max = ?FRAME_MAX, heartbeat = 0}, ok = send_on_channel0(Sock, Tune, Protocol), - State#v1{connection_state = tuning, - connection = Connection#connection{user = User}} + next_connection_state( + State#v1{connection = Connection#connection{user = User}}) end. %%-------------------------------------------------------------------------- -- cgit v1.2.1 From d01883ca941aaecd6da1ff45626af7217c046a10 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 3 Feb 2011 15:59:57 +0000 Subject: Tiny abstraction --- src/rabbit_reader.erl | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index ff3582ba..12f77964 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -393,6 +393,9 @@ switch_callback(State, Callback, Length) -> State#v1.sock, Length, infinity) end), State#v1{callback = Callback, recv_length = Length, recv_ref = Ref}. +switch_callback_to_frame_header(State) -> + switch_callback(State, frame_header, 7). + next_connection_state(State = #v1{connection_state = CS}) -> State#v1{connection_state = next_connection_state1(CS)}. @@ -611,7 +614,7 @@ handle_input({frame_payload, Type, Channel, PayloadSize}, case PayloadAndMarker of <> -> handle_frame(Type, Channel, Payload, - switch_callback(State, frame_header, 7)); + switch_callback_to_frame_header(State)); _ -> throw({bad_payload, Type, Channel, PayloadSize, PayloadAndMarker}) end; @@ -665,11 +668,11 @@ start_connection({ProtocolMajor, ProtocolMinor, _ProtocolRevision}, mechanisms = auth_mechanisms_binary(), locales = <<"en_US">> }, ok = send_on_channel0(Sock, Start, Protocol), - switch_callback( + switch_callback_to_frame_header( next_connection_state( State#v1{connection = Connection#connection{ timeout_sec = ?NORMAL_TIMEOUT, - protocol = Protocol}}), frame_header, 7). + protocol = Protocol}})). refuse_connection(Sock, Exception) -> ok = inet_op(fun () -> rabbit_net:send(Sock, <<"AMQP",0,0,9,1>>) end), -- cgit v1.2.1 From 3bf95f76bf25d4646e7d79bc11ae983f2b434abe Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 3 Feb 2011 18:12:15 +0000 Subject: Not really sure if this is getting any better. I've introduced bugs because of conflating a couple of areas, but I'm getting more familiar with it, and it might eventually get better. We shall see. --- src/rabbit_reader.erl | 206 +++++++++++++++++++++++++------------------------- 1 file changed, 105 insertions(+), 101 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 12f77964..881198a9 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -340,12 +340,11 @@ mainloop(Deb, State = #v1{parent = Parent, sock= Sock, recv_ref = Ref}) -> %% since this termination is initiated by our parent it is %% probably more important to exit quickly. exit(Reason); - {channel_exit, _Channel, E = {writer, send_failed, _Error}} -> - throw(E); {channel_exit, Channel, Reason} -> - mainloop(Deb, handle_exception(State, Channel, Reason)); + mainloop(Deb, handle_channel_event(Channel, {died, Reason}, State)); {'DOWN', _MRef, process, ChPid, Reason} -> - mainloop(Deb, handle_dependent_exit(ChPid, Reason, State)); + mainloop(Deb, handle_channel_event(undefined, {down, ChPid, Reason}, + State)); terminate_connection -> State; handshake_timeout -> @@ -448,19 +447,6 @@ close_channel(Channel, State) -> put({channel, Channel}, closing), State. -handle_dependent_exit(ChPid, Reason, State) -> - case termination_kind(Reason) of - controlled -> - erase({ch_pid, ChPid}), - maybe_close(State); - uncontrolled -> - case channel_cleanup(ChPid) of - undefined -> exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> maybe_close( - handle_exception(State, Channel, Reason)) - end - end. - channel_cleanup(ChPid) -> case get({ch_pid, ChPid}) of undefined -> undefined; @@ -471,42 +457,30 @@ channel_cleanup(ChPid) -> all_channels() -> [ChPid || {{ch_pid, ChPid}, _Channel} <- get()]. -terminate_channels() -> +terminate_channels(State) -> NChannels = length([rabbit_channel:shutdown(ChPid) || ChPid <- all_channels()]), - if NChannels > 0 -> - Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, - TimerRef = erlang:send_after(Timeout, self(), cancel_wait), - wait_for_channel_termination(NChannels, TimerRef); - true -> ok + case NChannels of + 0 -> State; + _ -> Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, + TimerRef = erlang:send_after(Timeout, self(), cancel_wait), + wait_for_channel_termination(NChannels, TimerRef, State) end. -wait_for_channel_termination(0, TimerRef) -> +wait_for_channel_termination(0, TimerRef, State) -> case erlang:cancel_timer(TimerRef) of false -> receive cancel_wait -> ok end; _ -> ok - end; + end, + State; -wait_for_channel_termination(N, TimerRef) -> +wait_for_channel_termination(N, TimerRef, State) -> receive {'DOWN', _MRef, process, ChPid, Reason} -> - case channel_cleanup(ChPid) of - undefined -> - exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> - case termination_kind(Reason) of - controlled -> - ok; - uncontrolled -> - rabbit_log:error( - "connection ~p, channel ~p - " - "error while terminating:~n~p~n", - [self(), Channel, Reason]) - end, - wait_for_channel_termination(N-1, TimerRef) - end; + wait_for_channel_termination( + N-1, TimerRef, handle_channel_down(ChPid, Reason, State)); cancel_wait -> exit(channel_termination_timeout) end. @@ -524,8 +498,8 @@ maybe_close(State = #v1{connection_state = closing, maybe_close(State) -> State. -termination_kind(normal) -> controlled; -termination_kind(_) -> uncontrolled. +termination_kind(normal) -> controlled; +termination_kind(_) -> uncontrolled. handle_frame(Type, 0, Payload, State = #v1{connection_state = CS, @@ -553,55 +527,7 @@ handle_frame(Type, Channel, Payload, case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of error -> throw({unknown_frame, Channel, Type, Payload}); heartbeat -> throw({unexpected_heartbeat_frame, Channel}); - AnalyzedFrame -> - case get({channel, Channel}) of - {ChPid, FramingState} -> - NewAState = process_channel_frame( - AnalyzedFrame, self(), - Channel, ChPid, FramingState), - put({channel, Channel}, {ChPid, NewAState}), - case AnalyzedFrame of - {method, 'channel.close', _} -> - erase({channel, Channel}), - State; - {method, MethodName, _} -> - case (State#v1.connection_state =:= blocking - andalso - Protocol:method_has_content(MethodName)) of - true -> State#v1{connection_state = blocked}; - false -> State - end; - _ -> - State - end; - closing -> - %% According to the spec, after sending a - %% channel.close we must ignore all frames except - %% channel.close and channel.close_ok. In the - %% event of a channel.close, we should send back a - %% channel.close_ok. - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - erase({channel, Channel}); - {method, 'channel.close', _} -> - %% We're already closing this channel, so - %% there's no cleanup to do (notify - %% queues, etc.) - ok = rabbit_writer:internal_send_command( - State#v1.sock, Channel, - #'channel.close_ok'{}, Protocol); - _ -> ok - end, - State; - undefined -> - case ?IS_RUNNING(State) of - true -> send_to_new_channel( - Channel, AnalyzedFrame, State); - false -> throw({channel_frame_while_starting, - Channel, State#v1.connection_state, - AnalyzedFrame}) - end - end + AnalyzedFrame -> handle_methodN(Channel, AnalyzedFrame, State) end. handle_input(frame_header, <>, State) -> @@ -861,6 +787,92 @@ auth_phase(Response, %%-------------------------------------------------------------------------- +handle_methodN(Channel, Frame, State) -> + handle_channel_event(Channel, {frame, Frame}, State). + +handle_channel_event(Channel, Event, State) -> + case channel_event(Channel, get({channel, Channel}), Event, State) of + {erase_channel, State1} -> + erase({channel, Channel}), + State1; + {{update_channel, Value}, State1} -> + put({channel, Channel}, Value), + State1; + {{send, Method}, State1 = + #v1{connection = #connection{protocol = Protocol}, sock = Sock}} -> + ok = rabbit_writer:internal_send_command( + Sock, Channel, Method, Protocol), + State1; + {{send_to_new_channel, Frame}, State1} -> + send_to_new_channel(Channel, Frame, State1); + {{send_exception, Reason}, State1} -> + send_exception(State1, Channel, Reason); + {maybe_close, State1} -> + maybe_close(State1); + {noop, State1} -> + State1 + end. + +%% Frame +channel_event(Channel, {ChPid, FramingState}, {frame, Frame}, + State = #v1{connection = #connection{protocol = Protocol}}) -> + FramingState1 = process_channel_frame(Frame, self(), + Channel, ChPid, FramingState), + case Frame of + {method, 'channel.close', _} -> + {erase_channel, State}; + {method, MethodName, _} -> + State1 = case (State#v1.connection_state =:= blocking andalso + Protocol:method_has_content(MethodName)) of + true -> State#v1{connection_state = blocked}; + false -> State + end, + {{update_channel, {ChPid, FramingState1}}, State1}; + _ -> + {{update_channel, {ChPid, FramingState1}}, State} + end; +channel_event(_Channel, closing, {frame, {method, 'channel.close_ok', _}}, + State) -> + {erase_channel, State}; +channel_event(_Channel, closing, {frame, {method, 'channel.close', _}}, + State) -> + {{send, #'channel.close_ok'{}}, State}; +channel_event(Channel, undefined, {frame, Frame}, State) -> + case ?IS_RUNNING(State) of + true -> {{send_to_new_channel, Frame}, State}; + false -> throw({channel_frame_while_starting, + Channel, State#v1.connection_state, + Frame}) + end; + +%% exits and downs +channel_event(_Channel, _ChState, {died, E = {writer, send_failed, _Error}}, + _State) -> + throw(E); +channel_event(Channel, _ChState, {died, Reason}, + State = #v1{connection_state = closed}) -> + log_channel_error(closed, Channel, Reason), + {noop, State}; +channel_event(Channel, _ChState, {died, Reason}, + State = #v1{connection_state = CS}) -> + log_channel_error(CS, Channel, Reason), + {{send_exception, Reason}, State}; +channel_event(undefined, undefined, {down, ChPid, Reason}, State) -> + {maybe_close, handle_channel_down(ChPid, Reason, State)}. + +handle_channel_down(ChPid, Reason, State) -> + case {termination_kind(Reason), channel_cleanup(ChPid)} of + {controlled, _} -> + State; + {uncontrolled, undefined} -> + exit({abnormal_channel_termination, ChPid, Reason}); + {uncontrolled, Channel} -> + %% channel died without us forwarding it a channel.close + handle_channel_event(Channel, {died, Reason}, State) + end. + +%%-------------------------------------------------------------------------- + infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. i(pid, #v1{}) -> @@ -984,20 +996,12 @@ log_channel_error(ConnectionState, Channel, Reason) -> rabbit_log:error("connection ~p (~p), channel ~p - error:~n~p~n", [self(), ConnectionState, Channel, Reason]). -handle_exception(State = #v1{connection_state = closed}, Channel, Reason) -> - log_channel_error(closed, Channel, Reason), - State; -handle_exception(State = #v1{connection_state = CS}, Channel, Reason) -> - log_channel_error(CS, Channel, Reason), - send_exception(State, Channel, Reason). - send_exception(State = #v1{connection = #connection{protocol = Protocol}}, Channel, Reason) -> {ShouldClose, CloseChannel, CloseMethod} = rabbit_binary_generator:map_exception(Channel, Reason, Protocol), NewState = case ShouldClose of - true -> terminate_channels(), - close_connection(State); + true -> close_connection(terminate_channels(State)); false -> close_channel(Channel, State) end, ok = rabbit_writer:internal_send_command( -- cgit v1.2.1 From 092f9046931ad4d3a81de20b0b6da1cd4100a0d3 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 3 Feb 2011 15:48:12 -0800 Subject: Bringing code back up to date. --- src/rabbit_mnesia_queue.erl | 280 +++++++++---------- src/rabbit_ram_queue.erl | 639 +++++++++++++++++++++----------------------- 2 files changed, 452 insertions(+), 467 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 08766bc6..4ed2553d 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -11,7 +11,7 @@ %% The Original Code is RabbitMQ. %% %% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. +%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. %% -module(rabbit_mnesia_queue). @@ -32,7 +32,7 @@ %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- -%% This module wraps msgs into M records for internal use, including +%% This module wraps msgs into Ms for internal use, including %% additional information. Pending acks are also recorded as Ms. Msgs %% and pending acks are both stored in Mnesia. %% @@ -51,7 +51,7 @@ %% BUG: Should not use mnesia:all_keys to count entries. -%% BUG: P records do not need a separate seq_id. +%% BUG: p_records do not need a separate seq_id. %% TODO: Worry about dropping txn_dict upon failure. @@ -59,7 +59,7 @@ %% The S record is the in-RAM AMQP queue state. It contains the names %% of three Mnesia queues; the next_seq_id and next_out_id (also -%% stored in the N table in Mnesia); and the transaction dictionary +%% stored in the N table in Mnesia); and the AMQP transaction dict %% (which can be dropped on a crash). -record(s, % The in-RAM queue state @@ -83,12 +83,12 @@ is_delivered % Has the msg been delivered? (for reporting) }). -%% A TX record is the value stored in the in-RAM txn_dict. It contains -%% a list of (msg, props) pairs to be published after the AMQP -%% transaction, in reverse order, and a list of seq_ids to ack, in any -%% order. No other write-operations are allowed in AMQP transactions, -%% and the effects of these operations are not visible to the client -%% until after the AMQP transaction commits. +%% A TX record is the value stored in the txn_dict. It contains a list +%% of (msg, props) pairs to be published after the AMQP transaction, +%% in reverse order, and a list of seq_ids to ack after the AMQP +%% transaction, in any order. No other write-operations are allowed in +%% AMQP transactions, and the effects of these operations are not +%% visible to the client until after the AMQP transaction commits. -record(tx, { to_pub, % List of (msg, props) pairs to publish @@ -183,10 +183,6 @@ %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - start(_DurableQueues) -> ok. %%---------------------------------------------------------------------------- @@ -199,9 +195,10 @@ stop() -> ok. %%---------------------------------------------------------------------------- %% init/3 creates one backing queue, returning its state. Names are -%% local to the vhost, and must be unique. This function creates -%% Mnesia transactions to run in, and therefore may not be called from -%% inside another Mnesia transaction. +%% local to the vhost, and must be unique. +%% +%% This function creates Mnesia transactions to run in, and therefore +%% may not be called from inside another Mnesia transaction. %% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) @@ -215,7 +212,7 @@ stop() -> ok. init(QueueName, IsDurable, Recover) -> rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), - {QTable, PTable, NTable} = db_tables(QueueName), + {QTable, PTable, NTable} = tables(QueueName), case Recover of false -> _ = mnesia:delete_table(QTable), _ = mnesia:delete_table(PTable), @@ -243,7 +240,7 @@ init(QueueName, IsDurable, Recover) -> next_seq_id = NextSeqId, next_out_id = NextOutId, txn_dict = dict:new() }, - db_save(RS), + save(RS), RS end), rabbit_log:info("init ->~n ~p", [Result]), @@ -251,9 +248,10 @@ init(QueueName, IsDurable, Recover) -> %%---------------------------------------------------------------------------- %% terminate/1 deletes all of a queue's pending acks, prior to -%% shutdown. This function creates an Mnesia transaction to run in, -%% and therefore may not be called from inside another Mnesia -%% transaction. +%% shutdown. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(terminate/1 :: (state()) -> state()). @@ -267,9 +265,10 @@ terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> %%---------------------------------------------------------------------------- %% delete_and_terminate/1 deletes all of a queue's enqueued msgs and -%% pending acks, prior to shutdown. This function creates an Mnesia -%% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. +%% pending acks, prior to shutdown. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). @@ -288,9 +287,10 @@ delete_and_terminate(S = #s { q_table = QTable, %%---------------------------------------------------------------------------- %% purge/1 deletes all of queue's enqueued msgs, generating pending -%% acks as required, and returning the count of msgs purged. This -%% function creates an Mnesia transaction to run in, and therefore may -%% not be called from inside another Mnesia transaction. +%% acks as required, and returning the count of msgs purged. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). @@ -305,9 +305,10 @@ purge(S = #s { q_table = QTable }) -> Result. %%---------------------------------------------------------------------------- -%% publish/3 publishes a msg. This function creates an Mnesia -%% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. +%% publish/3 publishes a msg. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), @@ -319,7 +320,7 @@ publish(Msg, Props, S) -> rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), {atomic, Result} = mnesia:transaction(fun () -> RS = publish_state(Msg, Props, false, S), - db_save(RS), + save(RS), RS end), rabbit_log:info("publish ->~n ~p", [Result]), @@ -328,9 +329,10 @@ publish(Msg, Props, S) -> %%---------------------------------------------------------------------------- %% publish_delivered/4 is called after a msg has been passed straight %% out to a client because the queue is empty. We update all state -%% (e.g., next_seq_id) as if we had in fact handled the msg. This -%% function creates an Mnesia transaction to run in, and therefore may -%% not be called from inside another Mnesia transaction. +%% (e.g., next_seq_id) as if we had in fact handled the msg. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), %% rabbit_types:message_properties(), state()) @@ -341,7 +343,7 @@ publish(Msg, Props, S) -> publish_delivered(false, _, _, S) -> rabbit_log:info("publish_delivered(false, _, _,~n ~p) ->", [S]), - Result = {blank_ack, S}, + Result = {undefined, S}, rabbit_log:info("publish_delivered ->~n ~p", [Result]), Result; publish_delivered(true, @@ -353,11 +355,10 @@ publish_delivered(true, {atomic, Result} = mnesia:transaction( fun () -> - db_add_p( - (m(Msg, SeqId, Props)) #m { is_delivered = true }, S), + add_p((m(Msg, SeqId, Props)) #m { is_delivered = true }, S), RS = S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }, - db_save(RS), + save(RS), {SeqId, RS} end), rabbit_log:info("publish_delivered ->~n ~p", [Result]), @@ -365,11 +366,13 @@ publish_delivered(true, %%---------------------------------------------------------------------------- %% dropwhile/2 drops msgs from the head of the queue while there are -%% msgs and while the supplied predicate returns true. This function -%% creates an Mnesia transaction to run in, and therefore may not be -%% called from inside another Mnesia transaction. The supplied Pred is -%% called from inside the transaction, and therefore may not call -%% another function that creates an Mnesia transaction. +%% msgs and while the supplied predicate returns true. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia +%% transaction. The supplied Pred is called from inside the +%% transaction, and therefore may not call another function that +%% creates an Mnesia transaction. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -379,16 +382,17 @@ dropwhile(Pred, S) -> rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), {atomic, {_, Result}} = mnesia:transaction(fun () -> {Atom, RS} = internal_dropwhile(Pred, S), - db_save(RS), + save(RS), {Atom, RS} end), rabbit_log:info("dropwhile ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% fetch/2 produces the next msg, if any. This function creates an -%% Mnesia transaction to run in, and therefore may not be called from -%% inside another Mnesia transaction. +%% fetch/2 produces the next msg, if any. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; %% (false, state()) -> {fetch_result(undefined), state()}). @@ -403,20 +407,19 @@ fetch(AckRequired, S) -> %%---------------------------------------------------------------------------- %% ack/2 acknowledges msgs named by SeqIds, mapping SeqIds to guids -%% upon return. This function creates an Mnesia transaction to run in, -%% and therefore may not be called from inside another Mnesia -%% transaction. +%% upon return. %% -%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(ack/2 :: ([ack()], state()) -> state()). ack(SeqIds, S) -> rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), {atomic, Result} = - mnesia:transaction(fun () -> {Guids, RS} = internal_ack(SeqIds, S), - db_save(RS), - {Guids, RS} + mnesia:transaction(fun () -> {_, RS} = internal_ack(SeqIds, S), + save(RS), + RS end), rabbit_log:info("ack ->~n ~p", [Result]), Result. @@ -424,9 +427,10 @@ ack(SeqIds, S) -> %%---------------------------------------------------------------------------- %% tx_publish/4 is a publish within an AMQP transaction. It stores the %% msg and its properties in the to_pub field of the txn, waiting to -%% be committed. This function creates an Mnesia transaction to run -%% in, and therefore may not be called from inside another Mnesia -%% transaction. +%% be committed. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(tx_publish/4 :: %% (rabbit_types:txn(), @@ -444,7 +448,7 @@ tx_publish(Txn, Msg, Props, S) -> RS = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), - db_save(RS), + save(RS), RS end), rabbit_log:info("tx_publish ->~n ~p", [Result]), @@ -452,11 +456,10 @@ tx_publish(Txn, Msg, Props, S) -> %%---------------------------------------------------------------------------- %% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in -%% the acks field of the txn, waiting to be committed. This function -%% creates an Mnesia transaction to run in, and therefore may not be -%% called from inside another Mnesia transaction. +%% the acks field of the txn, waiting to be committed. %% -%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). @@ -469,18 +472,17 @@ tx_ack(Txn, SeqIds, S) -> Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S), - db_save(RS), + save(RS), RS end), rabbit_log:info("tx_ack ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% tx_rollback/2 aborts an AMQP transaction. This function creates an -%% Mnesia transaction to run in, and therefore may not be called from -%% inside another Mnesia transaction. +%% tx_rollback/2 aborts an AMQP transaction. %% -%% The following spec is wrong, as a blank_ack cannot be passed back in. +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). @@ -490,7 +492,7 @@ tx_rollback(Txn, S) -> mnesia:transaction(fun () -> #tx { to_ack = SeqIds } = lookup_tx(Txn, S), RS = erase_tx(Txn, S), - db_save(RS), + save(RS), {SeqIds, RS} end), rabbit_log:info("tx_rollback ->~n ~p", [Result]), @@ -499,12 +501,12 @@ tx_rollback(Txn, S) -> %%---------------------------------------------------------------------------- %% tx_commit/4 commits an AMQP transaction. The F passed in is called %% once the msgs have really been commited. This CPS permits the -%% possibility of commit coalescing. This function creates an Mnesia -%% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. However, the supplied F is called -%% outside the transaction. +%% possibility of commit coalescing. %% -%% The following spec is wrong, as blank_acks cannot be returned. +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia +%% transaction. However, the supplied F is called outside the +%% transaction. %% %% -spec(tx_commit/4 :: %% (rabbit_types:txn(), @@ -522,7 +524,7 @@ tx_commit(Txn, F, PropsF, S) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), RS = tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S)), - db_save(RS), + save(RS), {SeqIds, RS} end), F(), @@ -531,11 +533,10 @@ tx_commit(Txn, F, PropsF, S) -> %%---------------------------------------------------------------------------- %% requeue/3 reinserts msgs into the queue that have already been -%% delivered and were pending acknowledgement. This function creates -%% an Mnesia transaction to run in, and therefore may not be called -%% from inside another Mnesia transaction. +%% delivered and were pending acknowledgement. %% -%% The following spec is wrong, as blank_acks cannot be passed back in. +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). @@ -545,22 +546,23 @@ requeue(SeqIds, PropsF, S) -> {atomic, Result} = mnesia:transaction( fun () -> {_, RS} = - db_del_ps( + del_ps( fun (#m { msg = Msg, props = Props }, Si) -> publish_state(Msg, PropsF(Props), true, Si) end, SeqIds, S), - db_save(RS), + save(RS), RS end), rabbit_log:info("requeue ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% len/1 returns the queue length. This function creates an Mnesia -%% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. +%% len/1 returns the queue length. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(len/1 :: (state()) -> non_neg_integer()). @@ -572,9 +574,10 @@ len(S = #s { q_table = QTable }) -> Result. %%---------------------------------------------------------------------------- -%% is_empty/1 returns true iff the queue is empty. This function -%% creates an Mnesia transaction to run in, and therefore may not be -%% called from inside another Mnesia transaction. +%% is_empty/1 returns true iff the queue is empty. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(is_empty/1 :: (state()) -> boolean()). @@ -634,13 +637,15 @@ handle_pre_hibernate(S) -> S. %%---------------------------------------------------------------------------- %% status/1 exists for debugging and operational purposes, to be able -%% to expose state via rabbitmqctl. This function creates an Mnesia -%% transaction to run in, and therefore may not be called from inside -%% another Mnesia transaction. +%% to expose state via rabbitmqctl. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(S = #s { q_table = QTable, p_table = PTable, +status(S = #s { q_table = QTable, + p_table = PTable, next_seq_id = NextSeqId }) -> rabbit_log:info("status(~n ~p) ->", [S]), {atomic, Result} = @@ -711,15 +716,16 @@ internal_purge(S) -> case internal_fetch(true, S) of _ -> internal_purge(S) end. -%% internal_fetch/2 fetches the next msg, if any, inside a +%% internal_fetch/2 fetches the next msg, if any, inside an Mnesia %% transaction, generating a pending ack as necessary. --spec internal_fetch(boolean(), state()) -> ok | fetch_result(ack()). +-spec(internal_fetch(true, s()) -> {fetch_result(ack()), s()}; + (false, s()) -> {fetch_result(undefined), s()}). internal_fetch(AckRequired, S) -> - case db_q_pop(S) of + case q_pop(S) of nothing -> empty; - {just, M} -> db_post_pop(AckRequired, M, S) + {just, M} -> post_pop(AckRequired, M, S) end. -spec tx_commit_state([rabbit_types:basic_message()], @@ -753,29 +759,29 @@ publish_state(Msg, -spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). -internal_ack(SeqIds, S) -> db_del_ps(fun (_, Si) -> Si end, SeqIds, S). +internal_ack(SeqIds, S) -> del_ps(fun (_, Si) -> Si end, SeqIds, S). -spec(internal_dropwhile/2 :: (fun ((rabbit_types:message_properties()) -> boolean()), s()) -> {empty | ok, s()}). internal_dropwhile(Pred, S) -> - case db_q_peek(S) of + case q_peek(S) of nothing -> {empty, S}; {just, M = #m { props = Props }} -> case Pred(Props) of - true -> _ = db_q_pop(S), - _ = db_post_pop(false, M, S), + true -> _ = q_pop(S), + _ = post_pop(false, M, S), internal_dropwhile(Pred, S); false -> {ok, S} end end. -%% db_q_pop pops a msg, if any, from the Q table in Mnesia. +%% q_pop pops a msg, if any, from the Q table in Mnesia. --spec db_q_pop(s()) -> maybe(m()). +-spec q_pop(s()) -> maybe(m()). -db_q_pop(#s { q_table = QTable }) -> +q_pop(#s { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; OutId -> [#q_record { out_id = OutId, m = M }] = @@ -784,12 +790,12 @@ db_q_pop(#s { q_table = QTable }) -> {just, M} end. -%% db_q_peek returns the first msg, if any, from the Q table in +%% q_peek returns the first msg, if any, from the Q table in %% Mnesia. --spec db_q_peek(s()) -> maybe(m()). +-spec q_peek(s()) -> maybe(m()). -db_q_peek(#s { q_table = QTable }) -> +q_peek(#s { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; OutId -> [#q_record { out_id = OutId, m = M }] = @@ -797,39 +803,42 @@ db_q_peek(#s { q_table = QTable }) -> {just, M} end. -%% db_post_pop operates after db_q_pop, calling db_add_p if necessary. +%% post_pop operates after q_pop, calling add_p if necessary. --spec db_post_pop/3 :: (boolean(), m(), s()) -> fetch_result(ack()). +-spec(post_pop(true, m(), s()) -> {fetch_result(ack()), s()}; + (false, m(), s()) -> {fetch_result(undefined), s()}). -db_post_pop(AckRequired, - M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, - S = #s { q_table = QTable }) -> +post_pop(true, + M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + S = #s { q_table = QTable }) -> LQ = length(mnesia:all_keys(QTable)), - Ack = case AckRequired of - true -> db_add_p(M #m { is_delivered = true }, S), SeqId; - false -> blank_ack - end, - {Msg, IsDelivered, Ack, LQ}. + add_p(M #m { is_delivered = true }, S), + {Msg, IsDelivered, SeqId, LQ}; +post_pop(false, + #m { msg = Msg, is_delivered = IsDelivered }, + #s { q_table = QTable }) -> + LQ = length(mnesia:all_keys(QTable)), + {Msg, IsDelivered, undefined, LQ}. -%% db_add_p adds a pending ack to the P table in Mnesia. +%% add_p adds a pending ack to the P table in Mnesia. --spec db_add_p(m(), s()) -> ok. +-spec add_p(m(), s()) -> ok. -db_add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> +add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> mnesia:write(PTable, #p_record { seq_id = SeqId, m = M }, 'write'), ok. -%% db_del_fs deletes some number of pending acks from the P table in +%% del_fs deletes some number of pending acks from the P table in %% Mnesia, applying a (Mnesia transactional) function F after each msg -%% is deleted, returning their guids. +%% is deleted, and returning their guids. --spec db_del_ps(fun (([rabbit_guid:guid()], s()) -> s()), - [rabbit_guid:guid()], - s()) -> - {[rabbit_guid:guid()], s()}. +-spec del_ps(fun (([rabbit_guid:guid()], s()) -> s()), + [rabbit_guid:guid()], + s()) -> + {[rabbit_guid:guid()], s()}. -db_del_ps(F, SeqIds, S = #s { p_table = PTable }) -> - {AllGuids, S1} = +del_ps(F, SeqIds, S = #s { p_table = PTable }) -> + {AllGuids, Sn} = lists:foldl( fun (SeqId, {Acc, Si}) -> [#p_record { @@ -840,16 +849,16 @@ db_del_ps(F, SeqIds, S = #s { p_table = PTable }) -> end, {[], S}, SeqIds), - {lists:reverse(AllGuids), S1}. + {lists:reverse(AllGuids), Sn}. -%% db_save copies the volatile part of the state (next_seq_id and +%% save copies the volatile part of the state (next_seq_id and %% next_out_id) to Mnesia. --spec db_save(s()) -> ok. +-spec save(s()) -> ok. -db_save(#s { n_table = NTable, - next_seq_id = NextSeqId, - next_out_id = NextOutId }) -> +save(#s { n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId }) -> ok = mnesia:write(NTable, #n_record { key = 'n', next_seq_id = NextSeqId, @@ -869,10 +878,10 @@ db_save(#s { n_table = NTable, %% with the string SLASH. We should extend this as necessary, and %% perhaps make it a little prettier. --spec db_tables({resource, binary(), queue, binary()}) -> - {atom(), atom(), atom()}. +-spec tables({resource, binary(), queue, binary()}) -> + {atom(), atom(), atom()}. -db_tables({resource, VHost, queue, Name}) -> +tables({resource, VHost, queue, Name}) -> VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), Str = lists:flatten(io_lib:format("~p ~p", [VHost2, Name2])), @@ -905,4 +914,3 @@ store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> S #s { txn_dict = dict:erase(Txn, TxnDict) }. - diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 4d643595..14045278 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -11,7 +11,7 @@ %% The Original Code is RabbitMQ. %% %% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. +%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. %% -module(rabbit_ram_queue). @@ -32,34 +32,60 @@ %% ---------------------------------------------------------------------------- %%---------------------------------------------------------------------------- -%% This module wraps messages into M records for internal use, -%% containing the messages themselves and additional -%% information. Pending acks are also recorded in memory as M records. +%% This module wraps msgs into Ms for internal use, including +%% additional information. Pending acks are also recorded as Ms. Msgs +%% and pending acks are both stored in RAM. %% -%% All queues are non-durable in this version, and all messages are -%% transient (non-persistent). (This breaks some Java tests for -%% durable queues.) -%%---------------------------------------------------------------------------- +%% All queues are durable in this version, and all msgs are treated as +%% persistent. (This will break some clients and some tests for +%% non-durable queues.) +%% ---------------------------------------------------------------------------- + +%% BUG: The rabbit_backing_queue_spec behaviour needs improvement. For +%% example, rabbit_amqqueue_process knows too much about the state of +%% a backing queue, even though this state may now change without its +%% knowledge. Additionally, there are points in the protocol where +%% failures can lose msgs. + +%% TODO: Need to provide better back-pressure when queue is filling up. + +%% BUG: p_records do not need a separate seq_id. -behaviour(rabbit_backing_queue). --record(s, % The in-RAM queue state - { q, % A temporary in-RAM queue of Ms - next_seq_id, % The next seq_id to use to build an M - pending_ack_dict, % Map from seq_id to M, pending ack - txn_dict % Map from txn to tx, in progress +%% The S record is the in-RAM AMQP queue state. It contains the queue +%% of Ms; the next_seq_id; and the AMQP transaction dict. + +-record(s, % The in-RAM queue state + { q, % The queue of Ms + p, % The seq_id->M map of pending acks + next_seq_id, % The next M's seq_id + txn_dict % In-progress txn->tx map }). --record(m, % A wrapper aroung a msg - { seq_id, % The seq_id for the msg - msg, % The msg itself - props, % The message properties - is_delivered % Has the msg been delivered? (for reporting) +%% An M record is a wrapper around a msg. It contains a seq_id, +%% assigned when the msg is published; the msg itself; the msg's +%% props, as presented by the client or as transformed by the client; +%% and an is-delivered flag, for reporting. + +-record(m, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg + msg, % The msg itself + props, % The msg properties + is_delivered % Has the msg been delivered? (for reporting) }). +%% A TX record is the value stored in the txn_dict. It contains a list +%% of (msg, props) pairs to be published after the AMQP transaction, +%% in reverse order, and a list of seq_ids to ack after the AMQP +%% transaction, in any order. No other write-operations are allowed in +%% AMQP transactions, and the effects of these operations are not +%% visible to the client until after the AMQP transaction commits. + -record(tx, - { to_pub, - to_ack }). + { to_pub, % List of (msg, props) pairs to publish + to_ack % List of seq_ids to ack + }). -include("rabbit.hrl"). @@ -69,16 +95,19 @@ %% -ifdef(use_specs). +-type(maybe(T) :: nothing | {just, T}). + -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id()). -type(s() :: #s { q :: queue(), + p :: dict(), next_seq_id :: seq_id(), - pending_ack_dict :: dict() }). + txn_dict :: dict() }). -type(state() :: s()). --type(m() :: #m { msg :: rabbit_types:basic_message(), - seq_id :: seq_id(), +-type(m() :: #m { seq_id :: seq_id(), + msg :: rabbit_types:basic_message(), props :: rabbit_types:message_properties(), is_delivered :: boolean() }). @@ -97,109 +126,90 @@ %%---------------------------------------------------------------------------- %% start/1 promises that a list of (durable) queue names will be -%% started in the near future. This lets us perform early checking -%% necessary for the consistency of those queues or initialise other -%% shared resources. -%% -%% This function should be called only from outside this module. +%% started in the near future. This lets us perform early checking of +%% the consistency of those queues, and initialize other shared +%% resources. It is ignored in this implementation. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start(_DurableQueues) -> - rabbit_log:info("start(_) ->"), - rabbit_log:info(" -> ok"), - ok. +start(_DurableQueues) -> ok. %%---------------------------------------------------------------------------- %% stop/0 tears down all state/resources upon shutdown. It might not -%% be called. -%% -%% This function should be called only from outside this module. +%% be called. It is ignored in this implementation. %% %% -spec(stop/0 :: () -> 'ok'). -stop() -> - rabbit_log:info("stop(_) ->"), - rabbit_log:info(" -> ok"), - ok. +stop() -> ok. %%---------------------------------------------------------------------------- %% init/3 creates one backing queue, returning its state. Names are -%% local to the vhost, and need not be unique. +%% local to the vhost, and must be unique. +%% +%% This function should be called only from outside this module. %% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) %% -> state()). -%% -%% This function should be called only from outside this module. -%% BUG: Need to provide better back-pressure when queue is filling up. - -init(QueueName, _IsDurable, _Recover) -> - rabbit_log:info("init(~p, _, _) ->", [QueueName]), +init(QueueName, IsDurable, Recover) -> + rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", + [QueueName, IsDurable, Recover]), Result = #s { q = queue:new(), + p = dict:new(), next_seq_id = 0, - pending_ack_dict = dict:new(), txn_dict = dict:new() }, - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("init ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% terminate/1 is called on queue shutdown when the queue isn't being -%% deleted. +%% terminate/1 deletes all of a queue's pending acks, prior to +%% shutdown. %% %% This function should be called only from outside this module. %% %% -spec(terminate/1 :: (state()) -> state()). terminate(S) -> - Result = remove_acks_state(S), - rabbit_log:info("terminate(~p) ->", [S]), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("terminate(~n ~p) ->", [S]), + Result = S #s { p = dict:new() }, + rabbit_log:info("terminate ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% delete_and_terminate/1 is called when the queue is terminating and -%% needs to delete all its content. The only difference between purge -%% and delete is that delete also needs to delete everything that's -%% been delivered and not ack'd. +%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and +%% pending acks, prior to shutdown. %% %% This function should be called only from outside this module. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). -%% the only difference between purge and delete is that delete also -%% needs to delete everything that's been delivered and not ack'd. - delete_and_terminate(S) -> - rabbit_log:info("delete_and_terminate(~p) ->", [S]), - Result = remove_acks_state(S #s { q = queue:new() }), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), + Result = S #s { q = queue:new(), p = dict:new() }, + rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% purge/1 removes all messages in the queue, but not messages which -%% have been fetched and are pending acks. +%% purge/1 deletes all of queue's enqueued msgs, generating pending +%% acks as required, and returning the count of msgs purged. %% %% This function should be called only from outside this module. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). purge(S = #s { q = Q }) -> - rabbit_log:info("purge(~p) ->", [S]), - Result = {queue:len(Q), S #s { q = queue:new() }}, - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("purge(~n ~p) ->", [S]), + LQ = queue:len(Q), + S1 = internal_purge(S), + Result = {LQ, S1}, + rabbit_log:info("purge ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% publish/3 publishes a message. +%% publish/3 publishes a msg. %% -%% This function should be called only from outside this module. All -%% msgs are silently reated as non-persistent. +%% This function should be called only from outside this module. %% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), @@ -208,19 +218,15 @@ purge(S = #s { q = Q }) -> %% -> state()). publish(Msg, Props, S) -> - rabbit_log:info("publish("), - rabbit_log:info(" ~p,", [Msg]), - rabbit_log:info(" ~p,", [Props]), - rabbit_log:info(" ~p) ->", [S]), + rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), Result = publish_state(Msg, Props, false, S), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("publish ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% publish_delivered/4 is called for messages which have already been -%% passed straight out to a client. The queue will be empty for these -%% calls (i.e. saves the round trip through the backing queue). All -%% msgs are silently treated as non-persistent. +%% publish_delivered/4 is called after a msg has been passed straight +%% out to a client because the queue is empty. We update all state +%% (e.g., next_seq_id) as if we had in fact handled the msg. %% %% This function should be called only from outside this module. %% @@ -232,27 +238,22 @@ publish(Msg, Props, S) -> %% -> {undefined, state()}). publish_delivered(false, _, _, S) -> - rabbit_log:info("publish_delivered(false, _, _,"), - rabbit_log:info(" ~p) ->", [S]), + rabbit_log:info("publish_delivered(false, _, _,~n ~p) ->", [S]), Result = {undefined, S}, - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("publish_delivered ->~n ~p", [Result]), Result; publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> - rabbit_log:info("publish_delivered(true, "), - rabbit_log:info(" ~p,", [Msg]), - rabbit_log:info(" ~p,", [Props]), - rabbit_log:info(" ~p) ->", [S]), - Result = - {SeqId, - (record_pending_ack_state( - ((m(Msg, SeqId, Props)) #m { is_delivered = true }), S)) - #s { next_seq_id = SeqId + 1 }}, - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info( + "publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + S1 = add_p((m(Msg, SeqId, Props)) #m { is_delivered = true }, S), + RS = S1 #s { next_seq_id = SeqId + 1 }, + Result = {SeqId, RS}, + rabbit_log:info("publish_delivered ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% dropwhile/2 drops messages from the head of the queue while the -%% supplied predicate returns true. +%% dropwhile/2 drops msgs from the head of the queue while there are +%% msgs and while the supplied predicate returns true. %% %% This function should be called only from outside this module. %% @@ -261,14 +262,13 @@ publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> %% -> state()). dropwhile(Pred, S) -> - rabbit_log:info("dropwhile(~p, ~p) ->", [Pred, S]), - {_, S1} = dropwhile_state(Pred, S), - Result = S1, - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), + {_, Result} = internal_dropwhile(Pred, S), + rabbit_log:info("dropwhile ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% fetch/2 produces the next message. +%% fetch/2 produces the next msg, if any. %% %% This function should be called only from outside this module. %% @@ -276,63 +276,29 @@ dropwhile(Pred, S) -> %% (false, state()) -> {fetch_result(undefined), state()}). fetch(AckRequired, S) -> - rabbit_log:info("fetch(~p, ~p) ->", [AckRequired, S]), - Result = - internal_queue_out( - fun (M, Si) -> internal_fetch(AckRequired, M, Si) end, S), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), + Result = internal_fetch(AckRequired, S), + rabbit_log:info("fetch ->~n ~p", [Result]), Result. --spec internal_queue_out(fun ((m(), state()) -> T), state()) -> - {empty, state()} | T. - -internal_queue_out(F, S = #s { q = Q }) -> - case queue:out(Q) of - {empty, _} -> {empty, S}; - {{value, M}, Qa} -> F(M, S #s { q = Qa }) - end. - --spec internal_fetch/3 :: (boolean(), m(), s()) -> {fetch_result(ack()), s()}. - -internal_fetch(AckRequired, - M = #m { - seq_id = SeqId, - msg = Msg, - is_delivered = IsDelivered }, - S = #s { q = Q }) -> - {Ack, S1} = - case AckRequired of - true -> - {SeqId, - record_pending_ack_state( - M #m { is_delivered = true }, S)}; - false -> {blank_ack, S} - end, - {{Msg, IsDelivered, Ack, queue:len(Q)}, S1}. - %%---------------------------------------------------------------------------- -%% ack/2 acknowledges messages names by SeqIds. Maps SeqIds to guids +%% ack/2 acknowledges msgs named by SeqIds, mapping SeqIds to guids %% upon return. %% %% This function should be called only from outside this module. %% -%% The following spec is wrong, as a blank_ack cannot be passed back in. -%% -%% -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). +%% -spec(ack/2 :: ([ack()], state()) -> state()). ack(SeqIds, S) -> - rabbit_log:info("ack("), - rabbit_log:info("~p,", [SeqIds]), - rabbit_log:info(" ~p) ->", [S]), - {Guids, S1} = internal_ack(SeqIds, S), - Result = {Guids, S1}, - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), + {_, Result} = internal_ack(SeqIds, S), + rabbit_log:info("ack ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% tx_publish/4 is a publish, but in the context of a transaction. It -%% stores the message and its properties in the to_pub field of the txn, -%% waiting to be committed. +%% tx_publish/4 is a publish within an AMQP transaction. It stores the +%% msg and its properties in the to_pub field of the txn, waiting to +%% be committed. %% %% This function should be called only from outside this module. %% @@ -344,57 +310,52 @@ ack(SeqIds, S) -> %% -> state()). tx_publish(Txn, Msg, Props, S) -> - rabbit_log:info("tx_publish(~p, ~p, ~p, ~p) ->", [Txn, Msg, Props, S]), + rabbit_log:info( + "tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), Result = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("tx_publish ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% tx_ack/3 acks, but in the context of a transaction. It stores the -%% seq_id in the acks field of the txn, waiting to be committed. +%% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in +%% the acks field of the txn, waiting to be committed. %% %% This function should be called only from outside this module. %% -%% The following spec is wrong, as a blank_ack cannot be passed back in. -%% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). tx_ack(Txn, SeqIds, S) -> - rabbit_log:info("tx_ack(~p, ~p, ~p) ->", [Txn, SeqIds, S]), + rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), - Result = - store_tx(Txn, Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, S), - rabbit_log:info(" -> ~p", [Result]), + Result = store_tx(Txn, + Tx #tx { to_ack = lists:append(SeqIds, SeqIds0) }, + S), + rabbit_log:info("tx_ack ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% tx_rollback/2 undoes anything which has been done in the context of -%% the specified transaction. It returns the state with to_pub and -%% to_ack erased. +%% tx_rollback/2 aborts an AMQP transaction. %% %% This function should be called only from outside this module. %% -%% The following spec is wrong, as a blank_ack cannot be passed back in. -%% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, S) -> - rabbit_log:info("tx_rollback(~p, ~p) ->", [Txn, S]), + rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), #tx { to_ack = SeqIds } = lookup_tx(Txn, S), - Result = {SeqIds, erase_tx(Txn, S)}, - rabbit_log:info(" -> ~p", [Result]), + RS = erase_tx(Txn, S), + Result = {SeqIds, RS}, + rabbit_log:info("tx_rollback ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% tx_commit/4 commits a transaction. The F passed in must be called -%% once the messages have really been commited. This CPS permits the +%% tx_commit/4 commits an AMQP transaction. The F passed in is called +%% once the msgs have really been commited. This CPS permits the %% possibility of commit coalescing. %% %% This function should be called only from outside this module. %% -%% The following spec is wrong, blank_acks cannot be returned. -%% %% -spec(tx_commit/4 :: %% (rabbit_types:txn(), %% fun (() -> any()), @@ -404,186 +365,148 @@ tx_rollback(Txn, S) -> tx_commit(Txn, F, PropsF, S) -> rabbit_log:info( - "tx_commit(~p, ~p, ~p, ~p) ->", [Txn, F, PropsF, S]), + "tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), - Result = {SeqIds, tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S))}, + RS = tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S)), + Result = {SeqIds, RS}, F(), - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("tx_commit ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% requeue/3 reinserts messages into the queue which have already been +%% requeue/3 reinserts msgs into the queue that have already been %% delivered and were pending acknowledgement. %% %% This function should be called only from outside this module. %% -%% The following spec is wrong, as blank_acks cannot be passed back in. -%% %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). requeue(SeqIds, PropsF, S) -> - rabbit_log:info("requeue(~p, ~p, ~p) ->", [SeqIds, PropsF, S]), - {_, S1} = - internal_ack3( - fun (#m { msg = Msg, props = Props }, Si) -> - publish_state(Msg, PropsF(Props), true, Si) - end, - SeqIds, - S), - Result = S1, - rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), + {_, Result} = del_ps( + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) + end, + SeqIds, + S), + rabbit_log:info("requeue ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- %% len/1 returns the queue length. %% +%% This function should be called only from outside this module. +%% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(#s { q = Q }) -> -% rabbit_log:info("len(~p) ->", [Q]), +len(S = #s { q = Q }) -> + rabbit_log:info("len(~n ~p) ->", [S]), Result = queue:len(Q), -% rabbit_log:info(" -> ~p", [Result]), + rabbit_log:info("len ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% is_empty/1 returns 'true' if the queue is empty, and 'false' -%% otherwise. +%% is_empty/1 returns true iff the queue is empty. +%% +%% This function should be called only from outside this module. %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(#s { q = Q }) -> -% rabbit_log:info("is_empty(~p)", [Q]), - Result = queue:is_empty(Q), -% rabbit_log:info(" -> ~p", [Result]), +is_empty(S = #s { q = Q }) -> + rabbit_log:info("is_empty(~n ~p) ->", [S]), + Result = 0 == queue:len(Q), + rabbit_log:info("is_empty ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% For the next two functions, the assumption is that you're -%% monitoring something like the ingress and egress rates of the -%% queue. The RAM duration is thus the length of time represented by -%% the messages held in RAM given the current rates. If you want to -%% ignore all of this stuff, then do so, and return 0 in -%% ram_duration/1. - -%% set_ram_duration_target states that the target is to have no more -%% messages in RAM than indicated by the duration and the current -%% queue rates. -%% -%% This function should be called only from outside this module. +%% set_ram_duration_target informs us that the target is to have no +%% more msgs in RAM than indicated by the duration and the current +%% queue rates. It is ignored in this implementation. %% %% -spec(set_ram_duration_target/2 :: %% (('undefined' | 'infinity' | number()), state()) %% -> state()). -set_ram_duration_target(_, S) -> - rabbit_log:info("set_ram_duration_target(_~p) ->", [S]), - Result = S, - rabbit_log:info(" -> ~p", [Result]), - Result. +set_ram_duration_target(_, S) -> S. %%---------------------------------------------------------------------------- %% ram_duration/1 optionally recalculates the duration internally %% (likely to be just update your internal rates), and report how many -%% seconds the messages in RAM represent given the current rates of -%% the queue. -%% -%% This function should be called only from outside this module. +%% seconds the msgs in RAM represent given the current rates of the +%% queue. It is a dummy in this implementation. %% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). -ram_duration(S) -> - rabbit_log:info("ram_duration(~p) ->", [S]), - Result = {0, S}, - rabbit_log:info(" -> ~p", [Result]), - Result. +ram_duration(S) -> {0, S}. %%---------------------------------------------------------------------------- -%% needs_idle_timeout/1 returns 'true' if 'idle_timeout' should be -%% called as soon as the queue process can manage (either on an empty -%% mailbox, or when a timer fires), and 'false' otherwise. -%% -%% This function should be called only from outside this module. +%% needs_idle_timeout/1 returns true iff idle_timeout should be called +%% as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires). It always returns false in this +%% implementation. %% %% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). -needs_idle_timeout(_) -> - rabbit_log:info("needs_idle_timeout(_) ->"), - Result = false, - rabbit_log:info(" -> ~p", [Result]), - Result. +needs_idle_timeout(_) -> false. %%---------------------------------------------------------------------------- -%% idle_timeout/1 is called (eventually) after needs_idle_timeout returns -%% 'true'. Note this may be called more than once for each 'true' -%% returned from needs_idle_timeout. -%% -%% This function should be called only from outside this module. +%% idle_timeout/1 is called (eventually) after needs_idle_timeout +%% returns true. It is a dummy in this implementation. %% %% -spec(idle_timeout/1 :: (state()) -> state()). -idle_timeout(S) -> - rabbit_log:info("idle_timeout(~p) ->", [S]), - Result = S, - rabbit_log:info(" -> ~p", [Result]), - Result. +idle_timeout(S) -> S. %%---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue -%% hibernates. -%% -%% This function should be called only from outside this module. +%% hibernates. It is a dummy in this implementation. %% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -handle_pre_hibernate(S) -> - Result = S, - rabbit_log:info("handle_pre_hibernate(~p) ->", [S]), - rabbit_log:info(" -> ~p", [Result]), - Result. +handle_pre_hibernate(S) -> S. %%---------------------------------------------------------------------------- -%% status/1 exists for debugging purposes, to be able to expose state -%% via rabbitmqctl list_queues backing_queue_status +%% status/1 exists for debugging and operational purposes, to be able +%% to expose state via rabbitmqctl. %% %% This function should be called only from outside this module. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(#s { q = Q, - next_seq_id = NextSeqId, - pending_ack_dict = PAD }) -> - rabbit_log:info("status(_) ->"), - Result = [{len, queue:len(Q)}, - {next_seq_id, NextSeqId}, - {acks, dict:size(PAD)}], - rabbit_log:info(" ~p", [Result]), +status(S = #s { q = Q, p = P, next_seq_id = NextSeqId }) -> + rabbit_log:info("status(~n ~p) ->", [S]), + LQ = queue:len(Q), + LP = dict:size(P), + Result = [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}], + rabbit_log:info("status ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -%% Various helpers -%%---------------------------------------------------------------------------- +%% Helper functions. +%% ---------------------------------------------------------------------------- --spec(dropwhile_state/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), s()) - -> {empty | ok, s()}). +%% internal_purge/1 purges all messages, generating pending acks as +%% necessary. -dropwhile_state(Pred, S) -> - internal_queue_out( - fun (M = #m { props = Props }, Si = #s { q = Q }) -> - case Pred(Props) of - true -> - {_, Si1} = internal_fetch(false, M, Si), - dropwhile_state(Pred, Si1); - false -> {ok, Si #s {q = queue:in_r(M, Q) }} - end - end, - S). +-spec internal_purge(state()) -> s(). --spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). +internal_purge(S) -> case internal_fetch(true, S) of + {empty, _} -> S; + {_, S1} -> internal_purge(S1) + end. -internal_ack(SeqIds, S) -> - internal_ack3(fun (_, Si) -> Si end, SeqIds, S). +%% internal_fetch/2 fetches the next msg, if any, generating a pending +%% ack as necessary. + +-spec(internal_fetch(true, s()) -> {fetch_result(ack()), s()}; + (false, s()) -> {fetch_result(undefined), s()}). + +internal_fetch(AckRequired, S) -> + case q_pop(S) of + {nothing, _} -> {empty, S}; + {{just, M}, S1} -> post_pop(AckRequired, M, S1) + end. -spec tx_commit_state([rabbit_types:basic_message()], [seq_id()], @@ -598,32 +521,6 @@ tx_commit_state(Pubs, SeqIds, PropsF, S) -> S1, [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). --spec m(rabbit_types:basic_message(), - seq_id(), - rabbit_types:message_properties()) -> - m(). - -m(Msg, SeqId, Props) -> - #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. - --spec lookup_tx(rabbit_types:txn(), state()) -> tx(). - -lookup_tx(Txn, #s { txn_dict = TxnDict }) -> - case dict:find(Txn, TxnDict) of - error -> #tx { to_pub = [], to_ack = [] }; - {ok, Tx} -> Tx - end. - --spec store_tx(rabbit_types:txn(), tx(), state()) -> state(). - -store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> - S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. - --spec erase_tx(rabbit_types:txn(), state()) -> state(). - -erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> - S #s { txn_dict = dict:erase(Txn, TxnDict) }. - -spec publish_state(rabbit_types:basic_message(), rabbit_types:message_properties(), boolean(), @@ -634,41 +531,121 @@ publish_state(Msg, Props, IsDelivered, S = #s { q = Q, next_seq_id = SeqId }) -> - S #s { - q = queue:in( - (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), - next_seq_id = SeqId + 1 }. + M = (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, + S #s { q = queue:in(M, Q), next_seq_id = SeqId + 1 }. --spec record_pending_ack_state(m(), s()) -> s(). +-spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). -record_pending_ack_state(M = #m { seq_id = SeqId }, - S = #s { pending_ack_dict = PAD }) -> - S #s { pending_ack_dict = dict:store(SeqId, M, PAD) }. +internal_ack(SeqIds, S) -> del_ps(fun (_, Si) -> Si end, SeqIds, S). -% -spec remove_acks_state(s()) -> s(). +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), s()) + -> {empty | ok, s()}). -remove_acks_state(S = #s { pending_ack_dict = PAD }) -> - _ = dict:fold(fun (_, M, Acc) -> [m_guid(M) | Acc] end, [], PAD), - S #s { pending_ack_dict = dict:new() }. +internal_dropwhile(Pred, S) -> + case q_peek(S) of + nothing -> {empty, S}; + {just, M = #m { props = Props }} -> + case Pred(Props) of + true -> {_, S1} = q_pop(S), + {_, S2} = post_pop(false, M, S1), + internal_dropwhile(Pred, S2); + false -> {ok, S} + end + end. --spec internal_ack3(fun (([rabbit_guid:guid()], s()) -> s()), - [rabbit_guid:guid()], - s()) -> - {[rabbit_guid:guid()], s()}. +%% q_pop pops a msg, if any, from the queue. + +-spec q_pop(s()) -> {maybe(m()), s()}. + +q_pop(S = #s { q = Q }) -> + case queue:out(Q) of + {empty, _} -> {nothing, S}; + {{value, M}, Q1} -> {{just, M}, S #s { q = Q1 }} + end. + +%% q_peek returns the first msg, if any, from the queue. -internal_ack3(_, [], S) -> {[], S}; -internal_ack3(F, SeqIds, S) -> - {AllGuids, S1} = +-spec q_peek(s()) -> maybe(m()). + +q_peek(#s { q = Q }) -> + case queue:peek(Q) of + empty -> nothing; + {value, M} -> {just, M} + end. + +%% post_pop operates after q_pop, calling add_p if necessary. + +-spec(post_pop(true, m(), s()) -> {fetch_result(ack()), s()}; + (false, m(), s()) -> {fetch_result(undefined), s()}). + +post_pop(true, + M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + S = #s { q = Q }) -> + LQ = queue:len(Q), + S1 = add_p(M #m { is_delivered = true }, S), + {{Msg, IsDelivered, SeqId, LQ}, S1}; +post_pop(false, + #m { msg = Msg, is_delivered = IsDelivered }, + S = #s { q = Q }) -> + LQ = queue:len(Q), + {{Msg, IsDelivered, undefined, LQ}, S}. + +%% add_p adds a pending ack to the P dict. + +-spec add_p(m(), s()) -> s(). + +add_p(M = #m { seq_id = SeqId }, S = #s { p = P }) -> + S #s { p = dict:store(SeqId, M, P) }. + +%% del_fs deletes some number of pending acks from the P dict, +%% applying a function F after each msg is deleted, and returning +%% their guids. + +-spec del_ps(fun (([rabbit_guid:guid()], s()) -> s()), + [rabbit_guid:guid()], + s()) -> + {[rabbit_guid:guid()], s()}. + +del_ps(F, SeqIds, S = #s { p = P }) -> + {AllGuids, Sn} = lists:foldl( - fun (SeqId, {Acc, Si = #s { pending_ack_dict = PAD }}) -> - M = dict:fetch(SeqId, PAD), - {[m_guid(M) | Acc], - F(M, Si #s { pending_ack_dict = dict:erase(SeqId, PAD)})} + fun (SeqId, {Acc, Si}) -> + {ok, M = #m { msg = #basic_message { guid = Guid } }} = + dict:find(SeqId, P), + Si2 = Si #s { p = dict:erase(SeqId, P) }, + {[Guid | Acc], F(M, Si2)} end, {[], S}, SeqIds), - {lists:reverse(AllGuids), S1}. + {lists:reverse(AllGuids), Sn}. --spec m_guid(m()) -> rabbit_guid:guid(). +%%---------------------------------------------------------------------------- +%% Pure helper functions. +%% ---------------------------------------------------------------------------- + +-spec m(rabbit_types:basic_message(), + seq_id(), + rabbit_types:message_properties()) -> + m(). -m_guid(#m { msg = #basic_message { guid = Guid }}) -> Guid. +m(Msg, SeqId, Props) -> + #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. + +-spec lookup_tx(rabbit_types:txn(), s()) -> tx(). + +lookup_tx(Txn, #s { txn_dict = TxnDict }) -> + case dict:find(Txn, TxnDict) of + error -> #tx { to_pub = [], to_ack = [] }; + {ok, Tx} -> Tx + end. + +-spec store_tx(rabbit_types:txn(), tx(), s()) -> s(). + +store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. + +-spec erase_tx(rabbit_types:txn(), s()) -> s(). + +erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:erase(Txn, TxnDict) }. -- cgit v1.2.1 From 3dbe27f4cfcd64359c69ee8bfa5eb84ec3693518 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 7 Feb 2011 14:39:31 +0000 Subject: Changes associated with channel only --- src/rabbit_channel.erl | 47 +++++++++++++++++++++-------------------------- 1 file changed, 21 insertions(+), 26 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index a82e5eff..4ccaf561 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -109,7 +109,7 @@ flush(Pid) -> gen_server2:call(Pid, flush). shutdown(Pid) -> - gen_server2:cast(Pid, terminate). + gen_server2:call(Pid, terminate, infinity). send_command(Pid, Msg) -> gen_server2:cast(Pid, {command, Msg}). @@ -207,6 +207,11 @@ handle_call({info, Items}, _From, State) -> catch Error -> reply({error, Error}, State) end; +handle_call(terminate, _From, State) -> + {ok, State1} = maybe_rollback_and_notify(State), + %% ok = rabbit_writer:send_command_sync(WriterPid, #'channel.close_ok'{}), + {stop, normal, ok, State1}; + handle_call(_Request, _From, State) -> noreply(State). @@ -216,14 +221,12 @@ handle_cast({method, Method, Content}, State) -> ok = rabbit_writer:send_command(NewState#ch.writer_pid, Reply), noreply(NewState); {noreply, NewState} -> - noreply(NewState); - stop -> - {stop, normal, State#ch{state = terminating}} + noreply(NewState) catch exit:Reason = #amqp_error{} -> MethodName = rabbit_misc:method_record_type(Method), - {stop, normal, terminating(Reason#amqp_error{method = MethodName}, - State)}; + {stop, normal, rollback_and_notify_channel( + Reason#amqp_error{method = MethodName}, State)}; exit:normal -> {stop, normal, State}; _:Reason -> @@ -233,9 +236,6 @@ handle_cast({method, Method, Content}, State) -> handle_cast({flushed, QPid}, State) -> {noreply, queue_blocked(QPid, State), hibernate}; -handle_cast(terminate, State) -> - {stop, normal, State}; - handle_cast({command, Msg}, State = #ch{writer_pid = WriterPid}) -> ok = rabbit_writer:send_command(WriterPid, Msg), noreply(State); @@ -302,18 +302,16 @@ handle_pre_hibernate(State = #ch{stats_timer = StatsTimer}) -> StatsTimer1 = rabbit_event:stop_stats_timer(StatsTimer), {hibernate, State#ch{stats_timer = StatsTimer1}}. -terminate(_Reason, State = #ch{state = terminating}) -> - terminate(State); - terminate(Reason, State) -> - Res = rollback_and_notify(State), + {Res, _State1} = maybe_rollback_and_notify(State), case Reason of normal -> ok = Res; shutdown -> ok = Res; {shutdown, _Term} -> ok = Res; _ -> ok end, - terminate(State). + pg_local:leave(rabbit_channels, self()), + rabbit_event:notify(channel_closed, [{pid, self()}]). code_change(_OldVsn, State, _Extra) -> {ok, State}. @@ -351,10 +349,11 @@ return_ok(State, false, Msg) -> {reply, Msg, State}. ok_msg(true, _Msg) -> undefined; ok_msg(false, Msg) -> Msg. -terminating(Reason, State = #ch{channel = Channel, reader_pid = Reader}) -> - ok = rollback_and_notify(State), +rollback_and_notify_channel(Reason, State = #ch{channel = Channel, + reader_pid = Reader}) -> + {ok, State1} = maybe_rollback_and_notify(State), Reader ! {channel_exit, Channel, Reason}, - State#ch{state = terminating}. + State1. return_queue_declare_ok(#resource{name = ActualName}, NoWait, MessageCount, ConsumerCount, State) -> @@ -526,11 +525,6 @@ handle_method(#'channel.open'{}, _, _State) -> handle_method(_Method, _, #ch{state = starting}) -> rabbit_misc:protocol_error(channel_error, "expected 'channel.open'", []); -handle_method(#'channel.close'{}, _, State = #ch{writer_pid = WriterPid}) -> - ok = rollback_and_notify(State), - ok = rabbit_writer:send_command_sync(WriterPid, #'channel.close_ok'{}), - stop; - handle_method(#'access.request'{},_, State) -> {reply, #'access.request_ok'{ticket = 1}, State}; @@ -1170,6 +1164,11 @@ internal_rollback(State = #ch{transaction_id = TxnKey, NewUAMQ = queue:join(UAQ, UAMQ), new_tx(State#ch{unacked_message_q = NewUAMQ}). +maybe_rollback_and_notify(State = #ch{state = unrolled}) -> + {ok, State}; +maybe_rollback_and_notify(State) -> + {rollback_and_notify(State), State#ch{state = unrolled}}. + rollback_and_notify(State = #ch{transaction_id = none}) -> notify_queues(State); rollback_and_notify(State) -> @@ -1305,10 +1304,6 @@ coalesce_and_send(MsgSeqNos, MkMsgFun, WriterPid, MkMsgFun(SeqNo, false)) || SeqNo <- Ss], State. -terminate(_State) -> - pg_local:leave(rabbit_channels, self()), - rabbit_event:notify(channel_closed, [{pid, self()}]). - infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. i(pid, _) -> self(); -- cgit v1.2.1 From 35b777303796f6a4aedf59781b4081b05b7d85ba Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 7 Feb 2011 16:11:15 +0000 Subject: channel => queues --- src/rabbit_channel.erl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 4ccaf561..03f96111 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -225,7 +225,7 @@ handle_cast({method, Method, Content}, State) -> catch exit:Reason = #amqp_error{} -> MethodName = rabbit_misc:method_record_type(Method), - {stop, normal, rollback_and_notify_channel( + {stop, normal, rollback_and_notify_queues( Reason#amqp_error{method = MethodName}, State)}; exit:normal -> {stop, normal, State}; @@ -349,8 +349,8 @@ return_ok(State, false, Msg) -> {reply, Msg, State}. ok_msg(true, _Msg) -> undefined; ok_msg(false, Msg) -> Msg. -rollback_and_notify_channel(Reason, State = #ch{channel = Channel, - reader_pid = Reader}) -> +rollback_and_notify_queues(Reason, State = #ch{channel = Channel, + reader_pid = Reader}) -> {ok, State1} = maybe_rollback_and_notify(State), Reader ! {channel_exit, Channel, Reason}, State1. -- cgit v1.2.1 From cd7f4b65f3df8f23d590db5841559975a03c6997 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 7 Feb 2011 16:13:16 +0000 Subject: queues => reader --- src/rabbit_channel.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 03f96111..e5326cf6 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -225,7 +225,7 @@ handle_cast({method, Method, Content}, State) -> catch exit:Reason = #amqp_error{} -> MethodName = rabbit_misc:method_record_type(Method), - {stop, normal, rollback_and_notify_queues( + {stop, normal, rollback_and_notify_reader( Reason#amqp_error{method = MethodName}, State)}; exit:normal -> {stop, normal, State}; @@ -349,7 +349,7 @@ return_ok(State, false, Msg) -> {reply, Msg, State}. ok_msg(true, _Msg) -> undefined; ok_msg(false, Msg) -> Msg. -rollback_and_notify_queues(Reason, State = #ch{channel = Channel, +rollback_and_notify_reader(Reason, State = #ch{channel = Channel, reader_pid = Reader}) -> {ok, State1} = maybe_rollback_and_notify(State), Reader ! {channel_exit, Channel, Reason}, -- cgit v1.2.1 From 3bcfd76eda5c669db35bdff0dc9887dfa024d916 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 7 Feb 2011 18:31:39 +0000 Subject: Get the reader to send out the channel.close and ask the channel to shutdown. --- src/rabbit_channel.erl | 4 +++- src/rabbit_reader.erl | 23 ++++++++++++++--------- 2 files changed, 17 insertions(+), 10 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index e5326cf6..1521a69f 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -109,7 +109,9 @@ flush(Pid) -> gen_server2:call(Pid, flush). shutdown(Pid) -> - gen_server2:call(Pid, terminate, infinity). + rabbit_misc:with_exit_handler( + fun () -> ok end, + fun () -> gen_server2:call(Pid, terminate, infinity) end). send_command(Pid, Msg) -> gen_server2:cast(Pid, {command, Msg}). diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index b5d82ac2..cf8261b2 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -550,6 +550,10 @@ handle_frame(Type, Channel, Payload, put({channel, Channel}, {ChPid, NewAState}), case AnalyzedFrame of {method, 'channel.close', _} -> + ok = rabbit_channel:shutdown(ChPid), + ok = rabbit_writer:internal_send_command( + State#v1.sock, Channel, + #'channel.close_ok'{}, Protocol), erase({channel, Channel}), State; {method, MethodName, _} -> @@ -957,15 +961,16 @@ send_to_new_channel(Channel, AnalyzedFrame, State) -> process_channel_frame(Frame, ErrPid, Channel, ChPid, AState) -> case rabbit_command_assembler:process(Frame, AState) of - {ok, NewAState} -> NewAState; - {ok, Method, NewAState} -> rabbit_channel:do(ChPid, Method), - NewAState; - {ok, Method, Content, NewAState} -> rabbit_channel:do(ChPid, - Method, Content), - NewAState; - {error, Reason} -> ErrPid ! {channel_exit, Channel, - Reason}, - AState + {ok, NewAState} -> NewAState; + {ok, #'channel.close'{}, NewAState} -> NewAState; + {ok, Method, NewAState} -> rabbit_channel:do(ChPid, Method), + NewAState; + {ok, Method, Content, NewAState} -> rabbit_channel:do( + ChPid, Method, Content), + NewAState; + {error, Reason} -> ErrPid ! {channel_exit, Channel, + Reason}, + AState end. log_channel_error(ConnectionState, Channel, Reason) -> -- cgit v1.2.1 From 78f55d37b5e963e333c01605b4d41dbe10178b41 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 8 Feb 2011 17:21:27 -0800 Subject: More work.... --- src/rabbit_mnesia_queue.erl | 81 +++++++++++++++++++++------------------------ src/rabbit_ram_queue.erl | 22 ++---------- 2 files changed, 41 insertions(+), 62 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 4ed2553d..73af27f6 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -210,8 +210,7 @@ stop() -> ok. %% Mnesia transaction! init(QueueName, IsDurable, Recover) -> - rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", - [QueueName, IsDurable, Recover]), + % rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), {QTable, PTable, NTable} = tables(QueueName), case Recover of false -> _ = mnesia:delete_table(QTable), @@ -243,7 +242,7 @@ init(QueueName, IsDurable, Recover) -> save(RS), RS end), - rabbit_log:info("init ->~n ~p", [Result]), + % rabbit_log:info("init ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -256,11 +255,11 @@ init(QueueName, IsDurable, Recover) -> %% -spec(terminate/1 :: (state()) -> state()). terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> - rabbit_log:info("terminate(~n ~p) ->", [S]), + % rabbit_log:info("terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> clear_table(PTable), S end), mnesia:dump_tables([QTable, PTable, NTable]), - rabbit_log:info("terminate ->~n ~p", [Result]), + % rabbit_log:info("terminate ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -275,14 +274,14 @@ terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> delete_and_terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> - rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), + % rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> clear_table(QTable), clear_table(PTable), S end), mnesia:dump_tables([QTable, PTable, NTable]), - rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), + % rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -295,13 +294,13 @@ delete_and_terminate(S = #s { q_table = QTable, %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). purge(S = #s { q_table = QTable }) -> - rabbit_log:info("purge(~n ~p) ->", [S]), + % rabbit_log:info("purge(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), internal_purge(S), {LQ, S} end), - rabbit_log:info("purge ->~n ~p", [Result]), + % rabbit_log:info("purge ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -317,13 +316,13 @@ purge(S = #s { q_table = QTable }) -> %% -> state()). publish(Msg, Props, S) -> - rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + % rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), {atomic, Result} = mnesia:transaction(fun () -> RS = publish_state(Msg, Props, false, S), save(RS), RS end), - rabbit_log:info("publish ->~n ~p", [Result]), + % rabbit_log:info("publish ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -342,16 +341,15 @@ publish(Msg, Props, S) -> %% -> {undefined, state()}). publish_delivered(false, _, _, S) -> - rabbit_log:info("publish_delivered(false, _, _,~n ~p) ->", [S]), + % rabbit_log:info("publish_delivered(false, _, _,~n ~p) ->", [S]), Result = {undefined, S}, - rabbit_log:info("publish_delivered ->~n ~p", [Result]), + % rabbit_log:info("publish_delivered ->~n ~p", [Result]), Result; publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId, next_out_id = OutId }) -> - rabbit_log:info( - "publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + % rabbit_log:info("publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -361,7 +359,7 @@ publish_delivered(true, save(RS), {SeqId, RS} end), - rabbit_log:info("publish_delivered ->~n ~p", [Result]), + % rabbit_log:info("publish_delivered ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -379,13 +377,13 @@ publish_delivered(true, %% -> state()). dropwhile(Pred, S) -> - rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), + % rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), {atomic, {_, Result}} = mnesia:transaction(fun () -> {Atom, RS} = internal_dropwhile(Pred, S), save(RS), {Atom, RS} end), - rabbit_log:info("dropwhile ->~n ~p", [Result]), + % rabbit_log:info("dropwhile ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -398,11 +396,11 @@ dropwhile(Pred, S) -> %% (false, state()) -> {fetch_result(undefined), state()}). fetch(AckRequired, S) -> - rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), + % rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), {atomic, FR} = mnesia:transaction(fun () -> internal_fetch(AckRequired, S) end), Result = {FR, S}, - rabbit_log:info("fetch ->~n ~p", [Result]), + % rabbit_log:info("fetch ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -415,13 +413,13 @@ fetch(AckRequired, S) -> %% -spec(ack/2 :: ([ack()], state()) -> state()). ack(SeqIds, S) -> - rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), + % rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), {atomic, Result} = mnesia:transaction(fun () -> {_, RS} = internal_ack(SeqIds, S), save(RS), RS end), - rabbit_log:info("ack ->~n ~p", [Result]), + % rabbit_log:info("ack ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -440,8 +438,7 @@ ack(SeqIds, S) -> %% -> state()). tx_publish(Txn, Msg, Props, S) -> - rabbit_log:info( - "tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), + % rabbit_log:info("tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), {atomic, Result} = mnesia:transaction( fun () -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), @@ -451,7 +448,7 @@ tx_publish(Txn, Msg, Props, S) -> save(RS), RS end), - rabbit_log:info("tx_publish ->~n ~p", [Result]), + % rabbit_log:info("tx_publish ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -464,7 +461,7 @@ tx_publish(Txn, Msg, Props, S) -> %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). tx_ack(Txn, SeqIds, S) -> - rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), + % rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), {atomic, Result} = mnesia:transaction( fun () -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), @@ -475,7 +472,7 @@ tx_ack(Txn, SeqIds, S) -> save(RS), RS end), - rabbit_log:info("tx_ack ->~n ~p", [Result]), + % rabbit_log:info("tx_ack ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -487,7 +484,7 @@ tx_ack(Txn, SeqIds, S) -> %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, S) -> - rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), + % rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), {atomic, Result} = mnesia:transaction(fun () -> #tx { to_ack = SeqIds } = lookup_tx(Txn, S), @@ -495,7 +492,7 @@ tx_rollback(Txn, S) -> save(RS), {SeqIds, RS} end), - rabbit_log:info("tx_rollback ->~n ~p", [Result]), + % rabbit_log:info("tx_rollback ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -516,8 +513,7 @@ tx_rollback(Txn, S) -> %% -> {[ack()], state()}). tx_commit(Txn, F, PropsF, S) -> - rabbit_log:info( - "tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), + % rabbit_log:info("tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -528,7 +524,7 @@ tx_commit(Txn, F, PropsF, S) -> {SeqIds, RS} end), F(), - rabbit_log:info("tx_commit ->~n ~p", [Result]), + % rabbit_log:info("tx_commit ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -542,7 +538,7 @@ tx_commit(Txn, F, PropsF, S) -> %% ([ack()], message_properties_transformer(), state()) -> state()). requeue(SeqIds, PropsF, S) -> - rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), + % rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), {atomic, Result} = mnesia:transaction( fun () -> {_, RS} = @@ -555,7 +551,7 @@ requeue(SeqIds, PropsF, S) -> save(RS), RS end), - rabbit_log:info("requeue ->~n ~p", [Result]), + % rabbit_log:info("requeue ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -567,10 +563,10 @@ requeue(SeqIds, PropsF, S) -> %% -spec(len/1 :: (state()) -> non_neg_integer()). len(S = #s { q_table = QTable }) -> - rabbit_log:info("len(~n ~p) ->", [S]), + % rabbit_log:info("len(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), - rabbit_log:info("len ->~n ~p", [Result]), + % rabbit_log:info("len ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -582,10 +578,10 @@ len(S = #s { q_table = QTable }) -> %% -spec(is_empty/1 :: (state()) -> boolean()). is_empty(S = #s { q_table = QTable }) -> - rabbit_log:info("is_empty(~n ~p) ->", [S]), + % rabbit_log:info("is_empty(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), - rabbit_log:info("is_empty ->~n ~p", [Result]), + % rabbit_log:info("is_empty ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -647,14 +643,14 @@ handle_pre_hibernate(S) -> S. status(S = #s { q_table = QTable, p_table = PTable, next_seq_id = NextSeqId }) -> - rabbit_log:info("status(~n ~p) ->", [S]), + % rabbit_log:info("status(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> LQ = length(mnesia:all_keys(QTable)), LP = length(mnesia:all_keys(PTable)), [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] end), - rabbit_log:info("status ->~n ~p", [Result]), + % rabbit_log:info("status ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -706,12 +702,11 @@ delete_nonpersistent_msgs(QTable) -> end, mnesia:all_keys(QTable)). -%% internal_purge/1 purges all messages, generating pending acks as -%% necessary. +%% internal_purge/1 purges all messages. -spec internal_purge(state()) -> ok. -internal_purge(S) -> case internal_fetch(true, S) of +internal_purge(S) -> case q_pop(S) of empty -> ok; _ -> internal_purge(S) end. diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 14045278..ee12f3eb 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -41,12 +41,6 @@ %% non-durable queues.) %% ---------------------------------------------------------------------------- -%% BUG: The rabbit_backing_queue_spec behaviour needs improvement. For -%% example, rabbit_amqqueue_process knows too much about the state of -%% a backing queue, even though this state may now change without its -%% knowledge. Additionally, there are points in the protocol where -%% failures can lose msgs. - %% TODO: Need to provide better back-pressure when queue is filling up. %% BUG: p_records do not need a separate seq_id. @@ -191,8 +185,8 @@ delete_and_terminate(S) -> Result. %%---------------------------------------------------------------------------- -%% purge/1 deletes all of queue's enqueued msgs, generating pending -%% acks as required, and returning the count of msgs purged. +%% purge/1 deletes all of queue's enqueued msgs, returning the count +%% of msgs purged. %% %% This function should be called only from outside this module. %% @@ -201,7 +195,7 @@ delete_and_terminate(S) -> purge(S = #s { q = Q }) -> rabbit_log:info("purge(~n ~p) ->", [S]), LQ = queue:len(Q), - S1 = internal_purge(S), + S1 = S #s { q = queue:new() }, Result = {LQ, S1}, rabbit_log:info("purge ->~n ~p", [Result]), Result. @@ -486,16 +480,6 @@ status(S = #s { q = Q, p = P, next_seq_id = NextSeqId }) -> %% Helper functions. %% ---------------------------------------------------------------------------- -%% internal_purge/1 purges all messages, generating pending acks as -%% necessary. - --spec internal_purge(state()) -> s(). - -internal_purge(S) -> case internal_fetch(true, S) of - {empty, _} -> S; - {_, S1} -> internal_purge(S1) - end. - %% internal_fetch/2 fetches the next msg, if any, generating a pending %% ack as necessary. -- cgit v1.2.1 From 0b6166527da12686ca749cab94976e8e81d81f29 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 9 Feb 2011 11:01:34 +0000 Subject: Pre-junk --- INSTALL.in | 10 - LICENSE | 5 - LICENSE-MPL-RabbitMQ | 455 ---- Makefile | 315 --- README.in | 10 - calculate-relative | 45 - codegen.py | 493 ----- docs/examples-to-end.xsl | 94 - docs/html-to-website-xml.xsl | 98 - docs/rabbitmq-multi.1.xml | 100 - docs/rabbitmq-server.1.xml | 132 -- docs/rabbitmq-service.xml | 217 -- docs/rabbitmq.conf.5.xml | 84 - docs/rabbitmqctl.1.xml | 1247 ----------- docs/remove-namespaces.xsl | 18 - docs/usage.xsl | 78 - ebin/rabbit_app.in | 37 - generate_app | 12 - generate_deps | 57 - include/rabbit.hrl | 98 - include/rabbit_auth_backend_spec.hrl | 32 - include/rabbit_auth_mechanism_spec.hrl | 27 - include/rabbit_backing_queue_spec.hrl | 67 - include/rabbit_exchange_type_spec.hrl | 36 - include/rabbit_msg_store.hrl | 26 - include/rabbit_msg_store_index.hrl | 45 - packaging/RPMS/Fedora/Makefile | 45 - packaging/RPMS/Fedora/rabbitmq-server.logrotate | 12 - packaging/RPMS/Fedora/rabbitmq-server.spec | 200 -- packaging/common/rabbitmq-script-wrapper | 42 - packaging/common/rabbitmq-server.init | 136 -- packaging/common/rabbitmq-server.ocf | 343 --- packaging/debs/Debian/Makefile | 42 - packaging/debs/Debian/check-changelog.sh | 29 - packaging/debs/Debian/debian/changelog | 156 -- packaging/debs/Debian/debian/compat | 1 - packaging/debs/Debian/debian/control | 18 - packaging/debs/Debian/debian/copyright | 502 ----- packaging/debs/Debian/debian/dirs | 9 - packaging/debs/Debian/debian/postinst | 56 - packaging/debs/Debian/debian/postrm.in | 73 - .../debs/Debian/debian/rabbitmq-server.logrotate | 12 - packaging/debs/Debian/debian/rules | 21 - packaging/debs/Debian/debian/watch | 4 - packaging/debs/apt-repository/Makefile | 28 - packaging/debs/apt-repository/README | 17 - .../debs/apt-repository/README-real-repository | 130 -- packaging/debs/apt-repository/distributions | 7 - packaging/debs/apt-repository/dupload.conf | 16 - packaging/generic-unix/Makefile | 23 - packaging/macports/Makefile | 59 - packaging/macports/Portfile.in | 119 - packaging/macports/make-checksums.sh | 14 - packaging/macports/make-port-diff.sh | 27 - .../patch-org.macports.rabbitmq-server.plist.diff | 10 - packaging/windows-exe/Makefile | 16 - packaging/windows-exe/lib/EnvVarUpdate.nsh | 327 --- packaging/windows-exe/rabbitmq.ico | Bin 4286 -> 0 bytes packaging/windows-exe/rabbitmq_nsi.in | 241 -- packaging/windows/Makefile | 36 - scripts/rabbitmq-env | 40 - scripts/rabbitmq-multi | 72 - scripts/rabbitmq-multi.bat | 84 - scripts/rabbitmq-server | 118 - scripts/rabbitmq-server.bat | 160 -- scripts/rabbitmq-service.bat | 248 --- scripts/rabbitmqctl | 31 - scripts/rabbitmqctl.bat | 49 - src/bpqueue.erl | 271 --- src/delegate.erl | 164 -- src/delegate_sup.erl | 47 - src/file_handle_cache.erl | 1176 ---------- src/gatherer.erl | 130 -- src/gen_server2.erl | 1152 ---------- src/pg_local.erl | 213 -- src/priority_queue.erl | 176 -- src/rabbit.erl | 502 ----- src/rabbit_access_control.erl | 137 -- src/rabbit_alarm.erl | 109 - src/rabbit_amqqueue.erl | 517 ----- src/rabbit_amqqueue_process.erl | 1164 ---------- src/rabbit_amqqueue_sup.erl | 38 - src/rabbit_auth_backend.erl | 61 - src/rabbit_auth_backend_internal.erl | 332 --- src/rabbit_auth_mechanism.erl | 42 - src/rabbit_auth_mechanism_amqplain.erl | 55 - src/rabbit_auth_mechanism_cr_demo.erl | 59 - src/rabbit_auth_mechanism_plain.erl | 76 - src/rabbit_backing_queue.erl | 128 -- src/rabbit_basic.erl | 156 -- src/rabbit_binary_generator.erl | 340 --- src/rabbit_binary_parser.erl | 165 -- src/rabbit_binding.erl | 422 ---- src/rabbit_channel.erl | 1396 ------------ src/rabbit_channel_sup.erl | 88 - src/rabbit_channel_sup_sup.erl | 48 - src/rabbit_client_sup.erl | 48 - src/rabbit_command_assembler.erl | 133 -- src/rabbit_connection_sup.erl | 65 - src/rabbit_control.erl | 404 ---- src/rabbit_direct.erl | 75 - src/rabbit_error_logger.erl | 74 - src/rabbit_error_logger_file_h.erl | 68 - src/rabbit_event.erl | 144 -- src/rabbit_exchange.erl | 310 --- src/rabbit_exchange_type.erl | 50 - src/rabbit_exchange_type_direct.erl | 49 - src/rabbit_exchange_type_fanout.erl | 48 - src/rabbit_exchange_type_headers.erl | 122 - src/rabbit_exchange_type_topic.erl | 254 --- src/rabbit_framing.erl | 49 - src/rabbit_guid.erl | 119 - src/rabbit_heartbeat.erl | 149 -- src/rabbit_limiter.erl | 234 -- src/rabbit_log.erl | 132 -- src/rabbit_memory_monitor.erl | 280 --- src/rabbit_misc.erl | 863 -------- src/rabbit_mnesia.erl | 614 ------ src/rabbit_msg_file.erl | 121 - src/rabbit_msg_store.erl | 1958 ----------------- src/rabbit_msg_store_ets_index.erl | 79 - src/rabbit_msg_store_gc.erl | 137 -- src/rabbit_msg_store_index.erl | 32 - src/rabbit_multi.erl | 349 --- src/rabbit_net.erl | 119 - src/rabbit_networking.erl | 396 ---- src/rabbit_node_monitor.erl | 101 - src/rabbit_prelaunch.erl | 276 --- src/rabbit_queue_collector.erl | 92 - src/rabbit_queue_index.erl | 1071 --------- src/rabbit_reader.erl | 1004 --------- src/rabbit_registry.erl | 124 -- src/rabbit_restartable_sup.erl | 32 - src/rabbit_router.erl | 108 - src/rabbit_sasl_report_file_h.erl | 81 - src/rabbit_ssl.erl | 173 -- src/rabbit_sup.erl | 64 - src/rabbit_tests.erl | 2324 -------------------- src/rabbit_tests_event_receiver.erl | 51 - src/rabbit_types.erl | 160 -- src/rabbit_upgrade.erl | 169 -- src/rabbit_upgrade_functions.erl | 103 - src/rabbit_variable_queue.erl | 1803 --------------- src/rabbit_vhost.erl | 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convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/LICENSE b/LICENSE deleted file mode 100644 index 89640485..00000000 --- a/LICENSE +++ /dev/null @@ -1,5 +0,0 @@ -This package, the RabbitMQ server is licensed under the MPL. For the -MPL, please see LICENSE-MPL-RabbitMQ. - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. diff --git a/LICENSE-MPL-RabbitMQ b/LICENSE-MPL-RabbitMQ deleted file mode 100644 index 14bcc21d..00000000 --- a/LICENSE-MPL-RabbitMQ +++ /dev/null @@ -1,455 +0,0 @@ - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] diff --git a/Makefile b/Makefile deleted file mode 100644 index 51b998f4..00000000 --- a/Makefile +++ /dev/null @@ -1,315 +0,0 @@ -TMPDIR ?= /tmp - -RABBITMQ_NODENAME ?= rabbit -RABBITMQ_SERVER_START_ARGS ?= -RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia -RABBITMQ_PLUGINS_EXPAND_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-plugins-scratch -RABBITMQ_LOG_BASE ?= $(TMPDIR) - -DEPS_FILE=deps.mk -SOURCE_DIR=src -EBIN_DIR=ebin -INCLUDE_DIR=include -DOCS_DIR=docs -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl -SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) -BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) -TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) -WEB_URL=http://www.rabbitmq.com/ -MANPAGES=$(patsubst %.xml, %.gz, $(wildcard $(DOCS_DIR)/*.[0-9].xml)) -WEB_MANPAGES=$(patsubst %.xml, %.man.xml, $(wildcard $(DOCS_DIR)/*.[0-9].xml) $(DOCS_DIR)/rabbitmq-service.xml) -USAGES_XML=$(DOCS_DIR)/rabbitmqctl.1.xml $(DOCS_DIR)/rabbitmq-multi.1.xml -USAGES_ERL=$(foreach XML, $(USAGES_XML), $(call usage_xml_to_erl, $(XML))) - -ifeq ($(shell python -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python -else -ifeq ($(shell python2.6 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.6 -else -ifeq ($(shell python2.5 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.5 -else -# Hmm. Missing simplejson? -PYTHON=python -endif -endif -endif - -BASIC_PLT=basic.plt -RABBIT_PLT=rabbit.plt - -ifndef USE_SPECS -# our type specs rely on features and bug fixes in dialyzer that are -# only available in R14A upwards (R14A is erts 5.8) -USE_SPECS:=$(shell erl -noshell -eval 'io:format([list_to_integer(X) || X <- string:tokens(erlang:system_info(version), ".")] >= [5,8]), halt().') -endif - -#other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(if $(filter true,$(USE_SPECS)),-Duse_specs) - -VERSION=0.0.0 -TARBALL_NAME=rabbitmq-server-$(VERSION) -TARGET_SRC_DIR=dist/$(TARBALL_NAME) - -SIBLING_CODEGEN_DIR=../rabbitmq-codegen/ -AMQP_CODEGEN_DIR=$(shell [ -d $(SIBLING_CODEGEN_DIR) ] && echo $(SIBLING_CODEGEN_DIR) || echo codegen) -AMQP_SPEC_JSON_FILES_0_9_1=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.9.1.json -AMQP_SPEC_JSON_FILES_0_8=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.8.json - -ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e - -ERL_EBIN=erl -noinput -pa $(EBIN_DIR) - -define usage_xml_to_erl - $(subst __,_,$(patsubst $(DOCS_DIR)/rabbitmq%.1.xml, $(SOURCE_DIR)/rabbit_%_usage.erl, $(subst -,_,$(1)))) -endef - -define usage_dep - $(call usage_xml_to_erl, $(1)): $(1) $(DOCS_DIR)/usage.xsl -endef - -ifneq "$(SBIN_DIR)" "" -ifneq "$(TARGET_DIR)" "" -SCRIPTS_REL_PATH=$(shell ./calculate-relative $(TARGET_DIR)/sbin $(SBIN_DIR)) -endif -endif - -# Versions prior to this are not supported -NEED_MAKE := 3.80 -ifneq "$(NEED_MAKE)" "$(firstword $(sort $(NEED_MAKE) $(MAKE_VERSION)))" -$(error Versions of make prior to $(NEED_MAKE) are not supported) -endif - -# .DEFAULT_GOAL introduced in 3.81 -DEFAULT_GOAL_MAKE := 3.81 -ifneq "$(DEFAULT_GOAL_MAKE)" "$(firstword $(sort $(DEFAULT_GOAL_MAKE) $(MAKE_VERSION)))" -.DEFAULT_GOAL=all -endif - -all: $(TARGETS) - -$(DEPS_FILE): $(SOURCES) $(INCLUDES) - rm -f $@ - echo $(subst : ,:,$(foreach FILE,$^,$(FILE):)) | escript generate_deps $@ $(EBIN_DIR) - -$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app - escript generate_app $(EBIN_DIR) $@ < $< - -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl | $(DEPS_FILE) - erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< - -$(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py --ignore-conflicts header $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_9_1) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_8) $@ - -dialyze: $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --no_native \ - -Wrace_conditions $(BEAM_TARGETS) - -# rabbit.plt is used by rabbitmq-erlang-client's dialyze make target -create-plt: $(RABBIT_PLT) - -$(RABBIT_PLT): $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --output_plt $@ --no_native \ - --add_to_plt $(BEAM_TARGETS) - -$(BASIC_PLT): $(BEAM_TARGETS) - if [ -f $@ ]; then \ - touch $@; \ - else \ - dialyzer --output_plt $@ --build_plt \ - --apps erts kernel stdlib compiler sasl os_mon mnesia tools \ - public_key crypto ssl; \ - fi - -clean: - rm -f $(EBIN_DIR)/*.beam - rm -f $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script $(EBIN_DIR)/rabbit.rel - rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCE_DIR)/rabbit_framing_amqp_*.erl codegen.pyc - rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) - rm -f $(RABBIT_PLT) - rm -f $(DEPS_FILE) - -cleandb: - rm -rf $(RABBITMQ_MNESIA_DIR)/* - -############ various tasks to interact with RabbitMQ ################### - -BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\ - RABBITMQ_NODE_IP_ADDRESS="$(RABBITMQ_NODE_IP_ADDRESS)" \ - RABBITMQ_NODE_PORT="$(RABBITMQ_NODE_PORT)" \ - RABBITMQ_LOG_BASE="$(RABBITMQ_LOG_BASE)" \ - RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" \ - RABBITMQ_PLUGINS_EXPAND_DIR="$(RABBITMQ_PLUGINS_EXPAND_DIR)" - -run: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-node: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-tests: all - echo "rabbit_tests:all_tests()." | $(ERL_CALL) - -start-background-node: - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server; sleep 1 - -start-rabbit-on-node: all - echo "rabbit:start()." | $(ERL_CALL) - -stop-rabbit-on-node: all - echo "rabbit:stop()." | $(ERL_CALL) - -set-memory-alarm: all - echo "alarm_handler:set_alarm({vm_memory_high_watermark, []})." | \ - $(ERL_CALL) - -clear-memory-alarm: all - echo "alarm_handler:clear_alarm(vm_memory_high_watermark)." | \ - $(ERL_CALL) - -stop-node: - -$(ERL_CALL) -q - -# code coverage will be created for subdirectory "ebin" of COVER_DIR -COVER_DIR=. - -start-cover: all - echo "rabbit_misc:start_cover([\"rabbit\", \"hare\"])." | $(ERL_CALL) - echo "rabbit_misc:enable_cover([\"$(COVER_DIR)\"])." | $(ERL_CALL) - -start-secondary-cover: all - echo "rabbit_misc:start_cover([\"hare\"])." | $(ERL_CALL) - -stop-cover: all - echo "rabbit_misc:report_cover(), cover:stop()." | $(ERL_CALL) - cat cover/summary.txt - -######################################################################## - -srcdist: distclean - mkdir -p $(TARGET_SRC_DIR)/codegen - cp -r ebin src include LICENSE LICENSE-MPL-RabbitMQ $(TARGET_SRC_DIR) - cp INSTALL.in $(TARGET_SRC_DIR)/INSTALL - elinks -dump -no-references -no-numbering $(WEB_URL)install.html \ - >> $(TARGET_SRC_DIR)/INSTALL - cp README.in $(TARGET_SRC_DIR)/README - elinks -dump -no-references -no-numbering $(WEB_URL)build-server.html \ - >> $(TARGET_SRC_DIR)/README - sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save - - cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ - cp codegen.py Makefile generate_app generate_deps calculate-relative $(TARGET_SRC_DIR) - - cp -r scripts $(TARGET_SRC_DIR) - cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) - chmod 0755 $(TARGET_SRC_DIR)/scripts/* - - (cd dist; tar -zcf $(TARBALL_NAME).tar.gz $(TARBALL_NAME)) - (cd dist; zip -r $(TARBALL_NAME).zip $(TARBALL_NAME)) - rm -rf $(TARGET_SRC_DIR) - -distclean: clean - $(MAKE) -C $(AMQP_CODEGEN_DIR) distclean - rm -rf dist - find . -regex '.*\(~\|#\|\.swp\|\.dump\)' -exec rm {} \; - -# xmlto can not read from standard input, so we mess with a tmp file. -%.gz: %.xml $(DOCS_DIR)/examples-to-end.xsl - xmlto --version | grep -E '^xmlto version 0\.0\.([0-9]|1[1-8])$$' >/dev/null || opt='--stringparam man.indent.verbatims=0' ; \ - xsltproc $(DOCS_DIR)/examples-to-end.xsl $< > $<.tmp && \ - xmlto -o $(DOCS_DIR) $$opt man $<.tmp && \ - gzip -f $(DOCS_DIR)/`basename $< .xml` - rm -f $<.tmp - -# Use tmp files rather than a pipeline so that we get meaningful errors -# Do not fold the cp into previous line, it's there to stop the file being -# generated but empty if we fail -$(SOURCE_DIR)/%_usage.erl: - xsltproc --stringparam modulename "`basename $@ .erl`" \ - $(DOCS_DIR)/usage.xsl $< > $@.tmp - sed -e 's/"/\\"/g' -e 's/%QUOTE%/"/g' $@.tmp > $@.tmp2 - fold -s $@.tmp2 > $@.tmp3 - mv $@.tmp3 $@ - rm $@.tmp $@.tmp2 - -# We rename the file before xmlto sees it since xmlto will use the name of -# the file to make internal links. -%.man.xml: %.xml $(DOCS_DIR)/html-to-website-xml.xsl - cp $< `basename $< .xml`.xml && \ - xmlto xhtml-nochunks `basename $< .xml`.xml ; rm `basename $< .xml`.xml - cat `basename $< .xml`.html | \ - xsltproc --novalid $(DOCS_DIR)/remove-namespaces.xsl - | \ - xsltproc --stringparam original `basename $<` $(DOCS_DIR)/html-to-website-xml.xsl - | \ - xmllint --format - > $@ - rm `basename $< .xml`.html - -docs_all: $(MANPAGES) $(WEB_MANPAGES) - -install: install_bin install_docs - -install_bin: all install_dirs - cp -r ebin include LICENSE LICENSE-MPL-RabbitMQ INSTALL $(TARGET_DIR) - - chmod 0755 scripts/* - for script in rabbitmq-env rabbitmq-server rabbitmqctl rabbitmq-multi; do \ - cp scripts/$$script $(TARGET_DIR)/sbin; \ - [ -e $(SBIN_DIR)/$$script ] || ln -s $(SCRIPTS_REL_PATH)/$$script $(SBIN_DIR)/$$script; \ - done - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory. > $(TARGET_DIR)/plugins/README - -install_docs: docs_all install_dirs - for section in 1 5; do \ - mkdir -p $(MAN_DIR)/man$$section; \ - for manpage in $(DOCS_DIR)/*.$$section.gz; do \ - cp $$manpage $(MAN_DIR)/man$$section; \ - done; \ - done - -install_dirs: - @ OK=true && \ - { [ -n "$(TARGET_DIR)" ] || { echo "Please set TARGET_DIR."; OK=false; }; } && \ - { [ -n "$(SBIN_DIR)" ] || { echo "Please set SBIN_DIR."; OK=false; }; } && \ - { [ -n "$(MAN_DIR)" ] || { echo "Please set MAN_DIR."; OK=false; }; } && $$OK - - mkdir -p $(TARGET_DIR)/sbin - mkdir -p $(SBIN_DIR) - mkdir -p $(MAN_DIR) - -$(foreach XML,$(USAGES_XML),$(eval $(call usage_dep, $(XML)))) - -# Note that all targets which depend on clean must have clean in their -# name. Also any target that doesn't depend on clean should not have -# clean in its name, unless you know that you don't need any of the -# automatic dependency generation for that target (eg cleandb). - -# We want to load the dep file if *any* target *doesn't* contain -# "clean" - i.e. if removing all clean-like targets leaves something - -ifeq "$(MAKECMDGOALS)" "" -TESTABLEGOALS:=$(.DEFAULT_GOAL) -else -TESTABLEGOALS:=$(MAKECMDGOALS) -endif - -ifneq "$(strip $(patsubst clean%,,$(patsubst %clean,,$(TESTABLEGOALS))))" "" --include $(DEPS_FILE) -endif - diff --git a/README.in b/README.in deleted file mode 100644 index 0e70d0e7..00000000 --- a/README.in +++ /dev/null @@ -1,10 +0,0 @@ -Please see http://www.rabbitmq.com/build-server.html for build -instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/calculate-relative b/calculate-relative deleted file mode 100755 index 3af18e8f..00000000 --- a/calculate-relative +++ /dev/null @@ -1,45 +0,0 @@ -#!/usr/bin/env python -# -# relpath.py -# R.Barran 30/08/2004 -# Retrieved from http://code.activestate.com/recipes/302594/ - -import os -import sys - -def relpath(target, base=os.curdir): - """ - Return a relative path to the target from either the current dir or an optional base dir. - Base can be a directory specified either as absolute or relative to current dir. - """ - - if not os.path.exists(target): - raise OSError, 'Target does not exist: '+target - - if not os.path.isdir(base): - raise OSError, 'Base is not a directory or does not exist: '+base - - base_list = (os.path.abspath(base)).split(os.sep) - target_list = (os.path.abspath(target)).split(os.sep) - - # On the windows platform the target may be on a completely different drive from the base. - if os.name in ['nt','dos','os2'] and base_list[0] <> target_list[0]: - raise OSError, 'Target is on a different drive to base. Target: '+target_list[0].upper()+', base: '+base_list[0].upper() - - # Starting from the filepath root, work out how much of the filepath is - # shared by base and target. - for i in range(min(len(base_list), len(target_list))): - if base_list[i] <> target_list[i]: break - else: - # If we broke out of the loop, i is pointing to the first differing path elements. - # If we didn't break out of the loop, i is pointing to identical path elements. - # Increment i so that in all cases it points to the first differing path elements. - i+=1 - - rel_list = [os.pardir] * (len(base_list)-i) + target_list[i:] - if (len(rel_list) == 0): - return "." - return os.path.join(*rel_list) - -if __name__ == "__main__": - print(relpath(sys.argv[1], sys.argv[2])) diff --git a/codegen.py b/codegen.py deleted file mode 100644 index 1fd5bc69..00000000 --- a/codegen.py +++ /dev/null @@ -1,493 +0,0 @@ -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -from __future__ import nested_scopes - -import sys -sys.path.append("../rabbitmq-codegen") # in case we're next to an experimental revision -sys.path.append("codegen") # in case we're building from a distribution package - -from amqp_codegen import * -import string -import re - -erlangTypeMap = { - 'octet': 'octet', - 'shortstr': 'shortstr', - 'longstr': 'longstr', - 'short': 'shortint', - 'long': 'longint', - 'longlong': 'longlongint', - 'bit': 'bit', - 'table': 'table', - 'timestamp': 'timestamp', -} - -# Coming up with a proper encoding of AMQP tables in JSON is too much -# hassle at this stage. Given that the only default value we are -# interested in is for the empty table, we only support that. -def convertTable(d): - if len(d) == 0: - return "[]" - else: raise 'Non-empty table defaults not supported', d - -erlangDefaultValueTypeConvMap = { - bool : lambda x: str(x).lower(), - str : lambda x: "<<\"" + x + "\">>", - int : lambda x: str(x), - float : lambda x: str(x), - dict: convertTable, - unicode: lambda x: "<<\"" + x.encode("utf-8") + "\">>" -} - -def erlangize(s): - s = s.replace('-', '_') - s = s.replace(' ', '_') - return s - -AmqpMethod.erlangName = lambda m: "'" + erlangize(m.klass.name) + '.' + erlangize(m.name) + "'" - -AmqpClass.erlangName = lambda c: "'" + erlangize(c.name) + "'" - -def erlangConstantName(s): - return '_'.join(re.split('[- ]', s.upper())) - -class PackedMethodBitField: - def __init__(self, index): - self.index = index - self.domain = 'bit' - self.contents = [] - - def extend(self, f): - self.contents.append(f) - - def count(self): - return len(self.contents) - - def full(self): - return self.count() == 8 - -def multiLineFormat(things, prologue, separator, lineSeparator, epilogue, thingsPerLine = 4): - r = [prologue] - i = 0 - for t in things: - if i != 0: - if i % thingsPerLine == 0: - r += [lineSeparator] - else: - r += [separator] - r += [t] - i += 1 - r += [epilogue] - return "".join(r) - -def prettyType(typeName, subTypes, typesPerLine = 4): - """Pretty print a type signature made up of many alternative subtypes""" - sTs = multiLineFormat(subTypes, - "( ", " | ", "\n | ", " )", - thingsPerLine = typesPerLine) - return "-type(%s ::\n %s)." % (typeName, sTs) - -def printFileHeader(): - print """%% Autogenerated code. Do not edit. -%% -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%%""" - -def genErl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldTypeList(fields): - return '[' + ', '.join([erlType(f.domain) for f in fields]) + ']' - - def fieldNameList(fields): - return '[' + ', '.join([erlangize(f.name) for f in fields]) + ']' - - def fieldTempList(fields): - return '[' + ', '.join(['F' + str(f.index) for f in fields]) + ']' - - def fieldMapList(fields): - return ', '.join([erlangize(f.name) + " = F" + str(f.index) for f in fields]) - - def genLookupMethodName(m): - print "lookup_method_name({%d, %d}) -> %s;" % (m.klass.index, m.index, m.erlangName()) - - def genLookupClassName(c): - print "lookup_class_name(%d) -> %s;" % (c.index, c.erlangName()) - - def genMethodId(m): - print "method_id(%s) -> {%d, %d};" % (m.erlangName(), m.klass.index, m.index) - - def genMethodHasContent(m): - print "method_has_content(%s) -> %s;" % (m.erlangName(), str(m.hasContent).lower()) - - def genMethodIsSynchronous(m): - hasNoWait = "nowait" in fieldNameList(m.arguments) - if m.isSynchronous and hasNoWait: - print "is_method_synchronous(#%s{nowait = NoWait}) -> not(NoWait);" % (m.erlangName()) - else: - print "is_method_synchronous(#%s{}) -> %s;" % (m.erlangName(), str(m.isSynchronous).lower()) - - def genMethodFieldTypes(m): - """Not currently used - may be useful in future?""" - print "method_fieldtypes(%s) -> %s;" % (m.erlangName(), fieldTypeList(m.arguments)) - - def genMethodFieldNames(m): - print "method_fieldnames(%s) -> %s;" % (m.erlangName(), fieldNameList(m.arguments)) - - def packMethodFields(fields): - packed = [] - bitfield = None - for f in fields: - if erlType(f.domain) == 'bit': - if not(bitfield) or bitfield.full(): - bitfield = PackedMethodBitField(f.index) - packed.append(bitfield) - bitfield.extend(f) - else: - bitfield = None - packed.append(f) - return packed - - def methodFieldFragment(f): - type = erlType(f.domain) - p = 'F' + str(f.index) - if type == 'shortstr': - return p+'Len:8/unsigned, '+p+':'+p+'Len/binary' - elif type == 'longstr': - return p+'Len:32/unsigned, '+p+':'+p+'Len/binary' - elif type == 'octet': - return p+':8/unsigned' - elif type == 'shortint': - return p+':16/unsigned' - elif type == 'longint': - return p+':32/unsigned' - elif type == 'longlongint': - return p+':64/unsigned' - elif type == 'timestamp': - return p+':64/unsigned' - elif type == 'bit': - return p+'Bits:8' - elif type == 'table': - return p+'Len:32/unsigned, '+p+'Tab:'+p+'Len/binary' - - def genFieldPostprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - for index in range(f.count()): - print " F%d = ((F%dBits band %d) /= 0)," % \ - (f.index + index, - f.index, - 1 << index) - elif type == 'table': - print " F%d = rabbit_binary_parser:parse_table(F%dTab)," % \ - (f.index, f.index) - else: - pass - - def genMethodRecord(m): - print "method_record(%s) -> #%s{};" % (m.erlangName(), m.erlangName()) - - def genDecodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - binaryPattern = ', '.join([methodFieldFragment(f) for f in packedFields]) - if binaryPattern: - restSeparator = ', ' - else: - restSeparator = '' - recordConstructorExpr = '#%s{%s}' % (m.erlangName(), fieldMapList(m.arguments)) - print "decode_method_fields(%s, <<%s>>) ->" % (m.erlangName(), binaryPattern) - genFieldPostprocessing(packedFields) - print " %s;" % (recordConstructorExpr,) - - def genDecodeProperties(c): - print "decode_properties(%d, PropBin) ->" % (c.index) - print " %s = rabbit_binary_parser:parse_properties(%s, PropBin)," % \ - (fieldTempList(c.fields), fieldTypeList(c.fields)) - print " #'P_%s'{%s};" % (erlangize(c.name), fieldMapList(c.fields)) - - def genFieldPreprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - print " F%dBits = (%s)," % \ - (f.index, - ' bor '.join(['(bitvalue(F%d) bsl %d)' % (x.index, x.index - f.index) - for x in f.contents])) - elif type == 'table': - print " F%dTab = rabbit_binary_generator:generate_table(F%d)," % (f.index, f.index) - print " F%dLen = size(F%dTab)," % (f.index, f.index) - elif type == 'shortstr': - print " F%dLen = shortstr_size(F%d)," % (f.index, f.index) - elif type == 'longstr': - print " F%dLen = size(F%d)," % (f.index, f.index) - else: - pass - - def genEncodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - print "encode_method_fields(#%s{%s}) ->" % (m.erlangName(), fieldMapList(m.arguments)) - genFieldPreprocessing(packedFields) - print " <<%s>>;" % (', '.join([methodFieldFragment(f) for f in packedFields])) - - def genEncodeProperties(c): - print "encode_properties(#'P_%s'{%s}) ->" % (erlangize(c.name), fieldMapList(c.fields)) - print " rabbit_binary_generator:encode_properties(%s, %s);" % \ - (fieldTypeList(c.fields), fieldTempList(c.fields)) - - def messageConstantClass(cls): - # We do this because 0.8 uses "soft error" and 8.1 uses "soft-error". - return erlangConstantName(cls) - - def genLookupException(c,v,cls): - mCls = messageConstantClass(cls) - if mCls == 'SOFT_ERROR': genLookupException1(c,'false') - elif mCls == 'HARD_ERROR': genLookupException1(c, 'true') - elif mCls == '': pass - else: raise 'Unknown constant class', cls - - def genLookupException1(c,hardErrorBoolStr): - n = erlangConstantName(c) - print 'lookup_amqp_exception(%s) -> {%s, ?%s, <<"%s">>};' % \ - (n.lower(), hardErrorBoolStr, n, n) - - def genAmqpException(c,v,cls): - n = erlangConstantName(c) - print 'amqp_exception(?%s) -> %s;' % \ - (n, n.lower()) - - methods = spec.allMethods() - - printFileHeader() - module = "rabbit_framing_amqp_%d_%d" % (spec.major, spec.minor) - if spec.revision != 0: - module = "%s_%d" % (module, spec.revision) - if module == "rabbit_framing_amqp_8_0": - module = "rabbit_framing_amqp_0_8" - print "-module(%s)." % module - print """-include("rabbit_framing.hrl"). - --export([version/0]). --export([lookup_method_name/1]). --export([lookup_class_name/1]). - --export([method_id/1]). --export([method_has_content/1]). --export([is_method_synchronous/1]). --export([method_record/1]). --export([method_fieldnames/1]). --export([decode_method_fields/2]). --export([decode_properties/2]). --export([encode_method_fields/1]). --export([encode_properties/1]). --export([lookup_amqp_exception/1]). --export([amqp_exception/1]). - -""" - print "%% Various types" - print "-ifdef(use_specs)." - - print """-export_type([amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(amqp_field_type() :: - 'longstr' | 'signedint' | 'decimal' | 'timestamp' | - 'table' | 'byte' | 'double' | 'float' | 'long' | - 'short' | 'bool' | 'binary' | 'void'). --type(amqp_property_type() :: - 'shortstr' | 'longstr' | 'octet' | 'shortint' | 'longint' | - 'longlongint' | 'timestamp' | 'bit' | 'table'). - --type(amqp_table() :: [{binary(), amqp_field_type(), amqp_value()}]). --type(amqp_array() :: [{amqp_field_type(), amqp_value()}]). --type(amqp_value() :: binary() | % longstr - integer() | % signedint - {non_neg_integer(), non_neg_integer()} | % decimal - amqp_table() | - amqp_array() | - byte() | % byte - float() | % double - integer() | % long - integer() | % short - boolean() | % bool - binary() | % binary - 'undefined' | % void - non_neg_integer() % timestamp - ). -""" - - print prettyType("amqp_method_name()", - [m.erlangName() for m in methods]) - print prettyType("amqp_method()", - ["{%s, %s}" % (m.klass.index, m.index) for m in methods], - 6) - print prettyType("amqp_method_record()", - ["#%s{}" % (m.erlangName()) for m in methods]) - fieldNames = set() - for m in methods: - fieldNames.update(m.arguments) - fieldNames = [erlangize(f.name) for f in fieldNames] - print prettyType("amqp_method_field_name()", - fieldNames) - print prettyType("amqp_property_record()", - ["#'P_%s'{}" % erlangize(c.name) for c in spec.allClasses()]) - print prettyType("amqp_exception()", - ["'%s'" % erlangConstantName(c).lower() for (c, v, cls) in spec.constants]) - print prettyType("amqp_exception_code()", - ["%i" % v for (c, v, cls) in spec.constants]) - classIds = set() - for m in spec.allMethods(): - classIds.add(m.klass.index) - print prettyType("amqp_class_id()", - ["%i" % ci for ci in classIds]) - print "-endif. % use_specs" - - print """ -%% Method signatures --ifdef(use_specs). --spec(version/0 :: () -> {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --spec(lookup_method_name/1 :: (amqp_method()) -> amqp_method_name()). --spec(method_id/1 :: (amqp_method_name()) -> amqp_method()). --spec(method_has_content/1 :: (amqp_method_name()) -> boolean()). --spec(is_method_synchronous/1 :: (amqp_method_record()) -> boolean()). --spec(method_record/1 :: (amqp_method_name()) -> amqp_method_record()). --spec(method_fieldnames/1 :: (amqp_method_name()) -> [amqp_method_field_name()]). --spec(decode_method_fields/2 :: - (amqp_method_name(), binary()) -> amqp_method_record() | rabbit_types:connection_exit()). --spec(decode_properties/2 :: (non_neg_integer(), binary()) -> amqp_property_record()). --spec(encode_method_fields/1 :: (amqp_method_record()) -> binary()). --spec(encode_properties/1 :: (amqp_property_record()) -> binary()). --spec(lookup_amqp_exception/1 :: (amqp_exception()) -> {boolean(), amqp_exception_code(), binary()}). --spec(amqp_exception/1 :: (amqp_exception_code()) -> amqp_exception()). --endif. % use_specs - -bitvalue(true) -> 1; -bitvalue(false) -> 0; -bitvalue(undefined) -> 0. - -shortstr_size(S) -> - case size(S) of - Len when Len =< 255 -> Len; - _ -> exit(method_field_shortstr_overflow) - end. -""" - version = "{%d, %d, %d}" % (spec.major, spec.minor, spec.revision) - if version == '{8, 0, 0}': version = '{0, 8, 0}' - print "version() -> %s." % (version) - - for m in methods: genLookupMethodName(m) - print "lookup_method_name({_ClassId, _MethodId} = Id) -> exit({unknown_method_id, Id})." - - for c in spec.allClasses(): genLookupClassName(c) - print "lookup_class_name(ClassId) -> exit({unknown_class_id, ClassId})." - - for m in methods: genMethodId(m) - print "method_id(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodHasContent(m) - print "method_has_content(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodIsSynchronous(m) - print "is_method_synchronous(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodRecord(m) - print "method_record(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodFieldNames(m) - print "method_fieldnames(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genDecodeMethodFields(m) - print "decode_method_fields(Name, BinaryFields) ->" - print " rabbit_misc:frame_error(Name, BinaryFields)." - - for c in spec.allClasses(): genDecodeProperties(c) - print "decode_properties(ClassId, _BinaryFields) -> exit({unknown_class_id, ClassId})." - - for m in methods: genEncodeMethodFields(m) - print "encode_method_fields(Record) -> exit({unknown_method_name, element(1, Record)})." - - for c in spec.allClasses(): genEncodeProperties(c) - print "encode_properties(Record) -> exit({unknown_properties_record, Record})." - - for (c,v,cls) in spec.constants: genLookupException(c,v,cls) - print "lookup_amqp_exception(Code) ->" - print " rabbit_log:warning(\"Unknown AMQP error code '~p'~n\", [Code])," - print " {true, ?INTERNAL_ERROR, <<\"INTERNAL_ERROR\">>}." - - for(c,v,cls) in spec.constants: genAmqpException(c,v,cls) - print "amqp_exception(_Code) -> undefined." - -def genHrl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldNameList(fields): - return ', '.join([erlangize(f.name) for f in fields]) - - def fieldNameListDefaults(fields): - def fillField(field): - result = erlangize(f.name) - if field.defaultvalue != None: - conv_fn = erlangDefaultValueTypeConvMap[type(field.defaultvalue)] - result += ' = ' + conv_fn(field.defaultvalue) - return result - return ', '.join([fillField(f) for f in fields]) - - methods = spec.allMethods() - - printFileHeader() - print "-define(PROTOCOL_PORT, %d)." % (spec.port) - - for (c,v,cls) in spec.constants: - print "-define(%s, %s)." % (erlangConstantName(c), v) - - print "%% Method field records." - for m in methods: - print "-record(%s, {%s})." % (m.erlangName(), fieldNameListDefaults(m.arguments)) - - print "%% Class property records." - for c in spec.allClasses(): - print "-record('P_%s', {%s})." % (erlangize(c.name), fieldNameList(c.fields)) - - -def generateErl(specPath): - genErl(AmqpSpec(specPath)) - -def generateHrl(specPath): - genHrl(AmqpSpec(specPath)) - -if __name__ == "__main__": - do_main_dict({"header": generateHrl, - "body": generateErl}) - diff --git a/docs/examples-to-end.xsl b/docs/examples-to-end.xsl deleted file mode 100644 index d9686ada..00000000 --- a/docs/examples-to-end.xsl +++ /dev/null @@ -1,94 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - Examples - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [] - - - - {} - - - - - - - - diff --git a/docs/html-to-website-xml.xsl b/docs/html-to-website-xml.xsl deleted file mode 100644 index 4bfcf6ca..00000000 --- a/docs/html-to-website-xml.xsl +++ /dev/null @@ -1,98 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - -type="text/xml" href="page.xsl" - - - <xsl:value-of select="document($original)/refentry/refnamediv/refname"/><xsl:if test="document($original)/refentry/refmeta/manvolnum">(<xsl:value-of select="document($original)/refentry/refmeta/manvolnum"/>)</xsl:if> manual page - 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- - - - diff --git a/docs/rabbitmq-multi.1.xml b/docs/rabbitmq-multi.1.xml deleted file mode 100644 index 6586890a..00000000 --- a/docs/rabbitmq-multi.1.xml +++ /dev/null @@ -1,100 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-multi - 1 - RabbitMQ Server - - - - rabbitmq-multi - start/stop local cluster RabbitMQ nodes - - - - - rabbitmq-multi - command - command options - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -rabbitmq-multi scripts allows for easy set-up of a cluster on a single -machine. - - - - - Commands - - - start_all count - - -Start count nodes with unique names, listening on all IP addresses and -on sequential ports starting from 5672. - - For example: - rabbitmq-multi start_all 3 - - Starts 3 local RabbitMQ nodes with unique, sequential port numbers. - - - - - - status - - -Print the status of all running RabbitMQ nodes. - - - - - - stop_all - - -Stop all local RabbitMQ nodes, - - - - - - rotate_logs - - -Rotate log files for all local and running RabbitMQ nodes. - - - - - - - - - - See also - - rabbitmq.conf5 - rabbitmq-server1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-server.1.xml b/docs/rabbitmq-server.1.xml deleted file mode 100644 index f161a291..00000000 --- a/docs/rabbitmq-server.1.xml +++ /dev/null @@ -1,132 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-server - 1 - RabbitMQ Server - - - - rabbitmq-server - start RabbitMQ AMQP server - - - - - rabbitmq-server - -detached - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-server in the foreground displays a banner message, -and reports on progress in the startup sequence, concluding with the -message "broker running", indicating that the RabbitMQ broker has been -started successfully. To shut down the server, just terminate the -process or use rabbitmqctl(1). - - - - - Environment - - - - RABBITMQ_MNESIA_BASE - - -Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory where -Mnesia database files should be placed. - - - - - - RABBITMQ_LOG_BASE - - -Defaults to /var/log/rabbitmq. Log files generated by the server will -be placed in this directory. - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - - - - Options - - - -detached - - - start the server process in the background - - For example: - rabbitmq-server -detached - - Runs RabbitMQ AMQP server in the background. - - - - - - - - See also - - rabbitmq.conf5 - rabbitmq-multi1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-service.xml b/docs/rabbitmq-service.xml deleted file mode 100644 index 3368960b..00000000 --- a/docs/rabbitmq-service.xml +++ /dev/null @@ -1,217 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-service.bat - RabbitMQ Server - - - - rabbitmq-service.bat - manage RabbitMQ AMQP service - - - - - rabbitmq-service.bat - command - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-service allows the RabbitMQ broker to be run as a -service on NT/2000/2003/XP/Vista® environments. The RabbitMQ broker -service can be started and stopped using the Windows® services -applet. - - -By default the service will run in the authentication context of the -local system account. It is therefore necessary to synchronise Erlang -cookies between the local system account (typically -C:\WINDOWS\.erlang.cookie and the account that will be used to -run rabbitmqctl. - - - - - Commands - - - - help - - -Display usage information. - - - - - - install - - -Install the service. The service will not be started. -Subsequent invocations will update the service parameters if -relevant environment variables were modified. - - - - - - remove - - -Remove the service. If the service is running then it will -automatically be stopped before being removed. No files will be -deleted as a consequence and rabbitmq-server will remain operable. - - - - - - start - - -Start the service. The service must have been correctly installed -beforehand. - - - - - - stop - - -Stop the service. The service must be running for this command to -have any effect. - - - - - - disable - - -Disable the service. This is the equivalent of setting the startup -type to Disabled using the service control panel. - - - - - - enable - - -Enable the service. This is the equivalent of setting the startup -type to Automatic using the service control panel. - - - - - - - - Environment - - - - RABBITMQ_SERVICENAME - - -Defaults to RabbitMQ. - - - - - - RABBITMQ_BASE - - -Defaults to the application data directory of the current user. -This is the location of log and database directories. - - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - ERLANG_SERVICE_MANAGER_PATH - - -Defaults to C:\Program Files\erl5.5.5\erts-5.5.5\bin -(or C:\Program Files (x86)\erl5.5.5\erts-5.5.5\bin for 64-bit -environments). This is the installation location of the Erlang service -manager. - - - - - - RABBITMQ_CONSOLE_LOG - - -Set this varable to new or reuse to have the console -output from the server redirected to a file named SERVICENAME.debug -in the application data directory of the user that installed the service. -Under Vista this will be C:\Users\AppData\username\SERVICENAME. -Under previous versions of Windows this will be -C:\Documents and Settings\username\Application Data\SERVICENAME. -If RABBITMQ_CONSOLE_LOG is set to new then a new file will be -created each time the service starts. If RABBITMQ_CONSOLE_LOG is -set to reuse then the file will be overwritten each time the -service starts. The default behaviour when RABBITMQ_CONSOLE_LOG is -not set or set to a value other than new or reuse is to discard -the server output. - - - - - - diff --git a/docs/rabbitmq.conf.5.xml b/docs/rabbitmq.conf.5.xml deleted file mode 100644 index 31de7164..00000000 --- a/docs/rabbitmq.conf.5.xml +++ /dev/null @@ -1,84 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq.conf - 5 - RabbitMQ Server - - - - rabbitmq.conf - default settings for RabbitMQ AMQP server - - - - Description - -/etc/rabbitmq/rabbitmq.conf contains variable settings that override the -defaults built in to the RabbitMQ startup scripts. - - -The file is interpreted by the system shell, and so should consist of -a sequence of shell environment variable definitions. Normal shell -syntax is permitted (since the file is sourced using the shell "." -operator), including line comments starting with "#". - - -In order of preference, the startup scripts get their values from the -environment, from /etc/rabbitmq/rabbitmq.conf and finally from the -built-in default values. For example, for the RABBITMQ_NODENAME -setting, - - - RABBITMQ_NODENAME - - -from the environment is checked first. If it is absent or equal to the -empty string, then - - - NODENAME - - -from /etc/rabbitmq/rabbitmq.conf is checked. If it is also absent -or set equal to the empty string then the default value from the -startup script is used. - - -The variable names in /etc/rabbitmq/rabbitmq.conf are always equal to the -environment variable names, with the RABBITMQ_ prefix removed: -RABBITMQ_NODE_PORT from the environment becomes NODE_PORT in the -/etc/rabbitmq/rabbitmq.conf file, etc. - - For example: - -# I am a complete /etc/rabbitmq/rabbitmq.conf file. -# Comment lines start with a hash character. -# This is a /bin/sh script file - use ordinary envt var syntax -NODENAME=hare - - - This is an example of a complete - /etc/rabbitmq/rabbitmq.conf file that overrides the default Erlang - node name from "rabbit" to "hare". - - - - - - See also - - rabbitmq-multi1 - rabbitmq-server1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmqctl.1.xml b/docs/rabbitmqctl.1.xml deleted file mode 100644 index bd9fee7d..00000000 --- a/docs/rabbitmqctl.1.xml +++ /dev/null @@ -1,1247 +0,0 @@ - - - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmqctl - 1 - RabbitMQ Service - - - - rabbitmqctl - command line tool for managing a RabbitMQ broker - - - - - rabbitmqctl - -n node - -q - command - command options - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. - - - rabbitmqctl is a command line tool for managing a - RabbitMQ broker. It performs all actions by connecting to one of the - broker's nodes. - - - - - Options - - - -n node - - - Default node is "rabbit@server", where server is the local host. On - a host named "server.example.com", the node name of the RabbitMQ - Erlang node will usually be rabbit@server (unless RABBITMQ_NODENAME - has been set to some non-default value at broker startup time). The - output of hostname -s is usually the correct suffix to use after the - "@" sign. See rabbitmq-server(1) for details of configuring the - RabbitMQ broker. - - - - - -q - - - Quiet output mode is selected with the "-q" flag. Informational - messages are suppressed when quiet mode is in effect. - - - - - - - - Commands - - - Application and Cluster Management - - - - stop - - - Stops the Erlang node on which RabbitMQ is running. To - restart the node follow the instructions for Running - the Server in the installation - guide. - - For example: - rabbitmqctl stop - - This command instructs the RabbitMQ node to terminate. - - - - - - stop_app - - - Stops the RabbitMQ application, leaving the Erlang node - running. - - - This command is typically run prior to performing other - management actions that require the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl stop_app - - This command instructs the RabbitMQ node to stop the - RabbitMQ application. - - - - - - start_app - - - Starts the RabbitMQ application. - - - This command is typically run after performing other - management actions that required the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl start_app - - This command instructs the RabbitMQ node to start the - RabbitMQ application. - - - - - - status - - - Displays various information about the RabbitMQ broker, - such as whether the RabbitMQ application on the current - node, its version number, what nodes are part of the - broker, which of these are running. - - For example: - rabbitmqctl status - - This command displays information about the RabbitMQ - broker. - - - - - - reset - - - Return a RabbitMQ node to its virgin state. - - - Removes the node from any cluster it belongs to, removes - all data from the management database, such as configured - users and vhosts, and deletes all persistent - messages. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl reset - - This command resets the RabbitMQ node. - - - - - - force_reset - - - Forcefully return a RabbitMQ node to its virgin state. - - - The force_reset command differs from - reset in that it resets the node - unconditionally, regardless of the current management - database state and cluster configuration. It should only - be used as a last resort if the database or cluster - configuration has been corrupted. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl force_reset - - This command resets the RabbitMQ node. - - - - - - rotate_logs suffix - - - Instruct the RabbitMQ node to rotate the log files. - - - The RabbitMQ broker will attempt to append the current contents - of the log file to the file with name composed of the original - name and the suffix. - It will create a new file if such a file does not already exist. - When no is specified, the empty log file is - simply created at the original location; no rotation takes place. - - - When an error occurs while appending the contents of the old log - file, the operation behaves in the same way as if no was - specified. - - - This command might be helpful when you are e.g. writing your - own logrotate script and you do not want to restart the RabbitMQ - node. - - For example: - rabbitmqctl rotate_logs .1 - - This command instructs the RabbitMQ node to append the current content - of the log files to the files with names consisting of the original logs' - names and ".1" suffix, e.g. rabbit.log.1. Finally, the old log files are reopened. - - - - - - - - Cluster management - - - - cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. To cluster with currently offline nodes, - use force_cluster. - - - Cluster nodes can be of two types: disk or ram. Disk nodes - replicate data in ram and on disk, thus providing - redundancy in the event of node failure and recovery from - global events such as power failure across all nodes. Ram - nodes replicate data in ram only and are mainly used for - scalability. A cluster must always have at least one disk node. - - - If the current node is to become a disk node it needs to - appear in the cluster node list. Otherwise it becomes a - ram node. If the node list is empty or only contains the - current node then the node becomes a standalone, - i.e. non-clustered, (disk) node. - - - After executing the cluster command, whenever - the RabbitMQ application is started on the current node it - will attempt to connect to the specified nodes, thus - becoming an active node in the cluster comprising those - nodes (and possibly others). - - - The list of nodes does not have to contain all the - cluster's nodes; a subset is sufficient. Also, clustering - generally succeeds as long as at least one of the - specified nodes is active. Hence adjustments to the list - are only necessary if the cluster configuration is to be - altered radically. - - - For this command to succeed the RabbitMQ application must - have been stopped, e.g. with stop_app. Furthermore, - turning a standalone node into a clustered node requires - the node be reset first, - in order to avoid accidental destruction of data with the - cluster command. - - - For more details see the clustering guide. - - For example: - rabbitmqctl cluster rabbit@tanto hare@elena - - This command instructs the RabbitMQ node to join the - cluster with nodes rabbit@tanto and - hare@elena. If the node is one of these then - it becomes a disk node, otherwise a ram node. - - - - - force_cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. This will succeed even if the specified nodes - are offline. For a more detailed description, see - cluster. - - - Note that this variant of the cluster command just - ignores the current status of the specified nodes. - Clustering may still fail for a variety of other - reasons. - - - - - - - - Closing individual connections - - - - close_connection connectionpid explanation - - - - connectionpid - Id of the Erlang process associated with the connection to close. - - - explanation - Explanation string. - - - - Instruct the broker to close the connection associated - with the Erlang process id (see also the - list_connections - command), passing the string to the - connected client as part of the AMQP connection shutdown - protocol. - - For example: - rabbitmqctl close_connection "<rabbit@tanto.4262.0>" "go away" - - This command instructs the RabbitMQ broker to close the - connection associated with the Erlang process - id <rabbit@tanto.4262.0>, passing the - explanation go away to the connected client. - - - - - - - - User management - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Users from any alternative - authentication backend will not be visible - to rabbitmqctl. - - - - add_user username password - - - - username - The name of the user to create. - - - password - The password the created user will use to log in to the broker. - - - For example: - rabbitmqctl add_user tonyg changeit - - This command instructs the RabbitMQ broker to create a - (non-administrative) user named tonyg with - (initial) password - changeit. - - - - - - delete_user username - - - - username - The name of the user to delete. - - - For example: - rabbitmqctl delete_user tonyg - - This command instructs the RabbitMQ broker to delete the - user named tonyg. - - - - - - change_password username newpassword - - - - username - The name of the user whose password is to be changed. - - - newpassword - The new password for the user. - - - For example: - rabbitmqctl change_password tonyg newpass - - This command instructs the RabbitMQ broker to change the - password for the user named tonyg to - newpass. - - - - - - clear_password username - - - - username - The name of the user whose password is to be cleared. - - - For example: - rabbitmqctl clear_password tonyg - - This command instructs the RabbitMQ broker to clear the - password for the user named - tonyg. This user now cannot log in with a password (but may be able to through e.g. SASL EXTERNAL if configured). - - - - - - set_admin username - - - - username - The name of the user whose administrative - status is to be set. - - - For example: - rabbitmqctl set_admin tonyg - - This command instructs the RabbitMQ broker to ensure the user - named tonyg is an administrator. This has no - effect when the user logs in via AMQP, but can be used to permit - the user to manage users, virtual hosts and permissions when the - user logs in via some other means (for example with the - management plugin). - - - - - - clear_admin username - - - - username - The name of the user whose administrative - status is to be cleared. - - - For example: - rabbitmqctl clear_admin tonyg - - This command instructs the RabbitMQ broker to ensure the user - named tonyg is not an administrator. - - - - - - list_users - - Lists users - For example: - rabbitmqctl list_users - - This command instructs the RabbitMQ broker to list all - users. Each result row will contain the user name and - the administrator status of the user, in that order. - - - - - - - - Access control - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Permissions for users from any - alternative authorisation backend will not be visible - to rabbitmqctl. - - - - add_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to create. - - - - Creates a virtual host. - - For example: - rabbitmqctl add_vhost test - - This command instructs the RabbitMQ broker to create a new - virtual host called test. - - - - - - delete_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to delete. - - - - Deletes a virtual host. - - - Deleting a virtual host deletes all its exchanges, - queues, user mappings and associated permissions. - - For example: - rabbitmqctl delete_vhost test - - This command instructs the RabbitMQ broker to delete the - virtual host called test. - - - - - - list_vhosts - - - Lists virtual hosts. - - For example: - rabbitmqctl list_vhosts - - This command instructs the RabbitMQ broker to list all - virtual hosts. - - - - - - set_permissions -p vhostpath user conf write read - - - - vhostpath - The name of the virtual host to which to grant the user access, defaulting to /. - - - user - The name of the user to grant access to the specified virtual host. - - - conf - A regular expression matching resource names for which the user is granted configure permissions. - - - write - A regular expression matching resource names for which the user is granted write permissions. - - - read - A regular expression matching resource names for which the user is granted read permissions. - - - - Sets user permissions. - - For example: - rabbitmqctl set_permissions -p /myvhost tonyg "^tonyg-.*" ".*" ".*" - - This command instructs the RabbitMQ broker to grant the - user named tonyg access to the virtual host - called /myvhost, with configure permissions - on all resources whose names starts with "tonyg-", and - write and read permissions on all resources. - - - - - - clear_permissions -p vhostpath username - - - - vhostpath - The name of the virtual host to which to deny the user access, defaulting to /. - - - username - The name of the user to deny access to the specified virtual host. - - - - Sets user permissions. - - For example: - rabbitmqctl clear_permissions -p /myvhost tonyg - - This command instructs the RabbitMQ broker to deny the - user named tonyg access to the virtual host - called /myvhost. - - - - - - list_permissions -p vhostpath - - - - vhostpath - The name of the virtual host for which to list the users that have been granted access to it, and their permissions. Defaults to /. - - - - Lists permissions in a virtual host. - - For example: - rabbitmqctl list_permissions -p /myvhost - - This command instructs the RabbitMQ broker to list all - the users which have been granted access to the virtual - host called /myvhost, and the - permissions they have for operations on resources in - that virtual host. Note that an empty string means no - permissions granted. - - - - - - list_user_permissions -p vhostpath username - - - - username - The name of the user for which to list the permissions. - - - - Lists user permissions. - - For example: - rabbitmqctl list_user_permissions tonyg - - This command instructs the RabbitMQ broker to list all the - virtual hosts to which the user named tonyg - has been granted access, and the permissions the user has - for operations on resources in these virtual hosts. - - - - - - - - Server Status - - The server status queries interrogate the server and return a list of - results with tab-delimited columns. Some queries (list_queues, - list_exchanges, list_bindings, and - list_consumers) accept an - optional vhost parameter. This parameter, if present, must be - specified immediately after the query. - - - The list_queues, list_exchanges and list_bindings commands accept an - optional virtual host parameter for which to display results. The - default value is "/". - - - - - list_queues -p vhostpath queueinfoitem ... - - - Returns queue details. Queue details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The queueinfoitem parameter is used to indicate which queue - information items to include in the results. The column order in the - results will match the order of the parameters. - queueinfoitem can take any value from the list - that follows: - - - - name - The name of the queue with non-ASCII characters escaped as in C. - - - durable - Whether or not the queue survives server restarts. - - - auto_delete - Whether the queue will be deleted automatically when no longer used. - - - arguments - Queue arguments. - - - pid - Id of the Erlang process associated with the queue. - - - owner_pid - Id of the Erlang process representing the connection - which is the exclusive owner of the queue. Empty if the - queue is non-exclusive. - - - exclusive_consumer_pid - Id of the Erlang process representing the channel of the - exclusive consumer subscribed to this queue. Empty if - there is no exclusive consumer. - - - exclusive_consumer_tag - Consumer tag of the exclusive consumer subscribed to - this queue. Empty if there is no exclusive consumer. - - - messages_ready - Number of messages ready to be delivered to clients. - - - messages_unacknowledged - Number of messages delivered to clients but not yet acknowledged. - - - messages - Sum of ready and unacknowledged messages - (queue depth). - - - consumers - Number of consumers. - - - memory - Bytes of memory consumed by the Erlang process associated with the - queue, including stack, heap and internal structures. - - - - If no queueinfoitems are specified then queue name and depth are - displayed. - - - For example: - - rabbitmqctl list_queues -p /myvhost messages consumers - - This command displays the depth and number of consumers for each - queue of the virtual host named /myvhost. - - - - - - list_exchanges -p vhostpath exchangeinfoitem ... - - - Returns exchange details. Exchange details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The exchangeinfoitem parameter is used to indicate which - exchange information items to include in the results. The column order in the - results will match the order of the parameters. - exchangeinfoitem can take any value from the list - that follows: - - - - name - The name of the exchange with non-ASCII characters escaped as in C. - - - type - The exchange type (one of [direct, - topic, headers, - fanout]). - - - durable - Whether or not the exchange survives server restarts. - - - auto_delete - Whether the exchange will be deleted automatically when no longer used. - - - internal - Whether the exchange is internal, i.e. cannot be directly published to by a client. - - - arguments - Exchange arguments. - - - - If no exchangeinfoitems are specified then - exchange name and type are displayed. - - - For example: - - rabbitmqctl list_exchanges -p /myvhost name type - - This command displays the name and type for each - exchange of the virtual host named /myvhost. - - - - - - list_bindings -p vhostpath bindinginfoitem ... - - - Returns binding details. By default the bindings for - the / virtual host are returned. The - "-p" flag can be used to override this default. - - - The bindinginfoitem parameter is used - to indicate which binding information items to include - in the results. The column order in the results will - match the order of the parameters. - bindinginfoitem can take any value - from the list that follows: - - - - source_name - The name of the source of messages to - which the binding is attached. With non-ASCII - characters escaped as in C. - - - source_kind - The kind of the source of messages to - which the binding is attached. Currently always - queue. With non-ASCII characters escaped as in - C. - - - destination_name - The name of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - destination_kind - The kind of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - routing_key - The binding's routing key, with - non-ASCII characters escaped as in C. - - - arguments - The binding's arguments. - - - - If no bindinginfoitems are specified then - all above items are displayed. - - - For example: - - rabbitmqctl list_bindings -p /myvhost exchange_name queue_name - - This command displays the exchange name and queue name - of the bindings in the virtual host - named /myvhost. - - - - - - list_connections connectioninfoitem ... - - - Returns TCP/IP connection statistics. - - - The connectioninfoitem parameter is used to indicate - which connection information items to include in the results. The - column order in the results will match the order of the parameters. - connectioninfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - address - Server IP address. - - - port - Server port. - - - peer_address - Peer address. - - - peer_port - Peer port. - - - ssl - Boolean indicating whether the - connection is secured with SSL. - - - ssl_protocol - SSL protocol - (e.g. tlsv1) - - - ssl_key_exchange - SSL key exchange algorithm - (e.g. rsa) - - - ssl_cipher - SSL cipher algorithm - (e.g. aes_256_cbc) - - - ssl_hash - SSL hash function - (e.g. sha) - - - peer_cert_subject - The subject of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_issuer - The issuer of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_validity - The period for which the peer's SSL - certificate is valid. - - - state - Connection state (one of [starting, tuning, - opening, running, closing, closed]). - - - channels - Number of channels using the connection. - - - protocol - Version of the AMQP protocol in use (currently one of {0,9,1} or {0,8,0}). Note that if a client requests an AMQP 0-9 connection, we treat it as AMQP 0-9-1. - - - auth_mechanism - SASL authentication mechanism used, such as PLAIN. - - - user - Username associated with the connection. - - - vhost - Virtual host name with non-ASCII characters escaped as in C. - - - timeout - Connection timeout. - - - frame_max - Maximum frame size (bytes). - - - client_properties - Informational properties transmitted by the client - during connection establishment. - - - recv_oct - Octets received. - - - recv_cnt - Packets received. - - - send_oct - Octets send. - - - send_cnt - Packets sent. - - - send_pend - Send queue size. - - - - If no connectioninfoitems are specified then user, peer - address, peer port and connection state are displayed. - - - - For example: - - rabbitmqctl list_connections send_pend port - - This command displays the send queue size and server port for each - connection. - - - - - - list_channels channelinfoitem ... - - - Returns information on all current channels, the logical - containers executing most AMQP commands. This includes - channels that are part of ordinary AMQP connections, and - channels created by various plug-ins and other extensions. - - - The channelinfoitem parameter is used to - indicate which channel information items to include in the - results. The column order in the results will match the - order of the parameters. - channelinfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - connection - Id of the Erlang process associated with the connection - to which the channel belongs. - - - number - The number of the channel, which uniquely identifies it within - a connection. - - - user - Username associated with the channel. - - - vhost - Virtual host in which the channel operates. - - - transactional - True if the channel is in transactional mode, false otherwise. - - - consumer_count - Number of logical AMQP consumers retrieving messages via - the channel. - - - messages_unacknowledged - Number of messages delivered via this channel but not - yet acknowledged. - - - acks_uncommitted - Number of acknowledgements received in an as yet - uncommitted transaction. - - - prefetch_count - QoS prefetch count limit in force, 0 if unlimited. - - - client_flow_blocked - True if the client issued a - channel.flow{active=false} - command, blocking the server from delivering - messages to the channel's consumers. - - - - confirm - True if the channel is in confirm mode, false otherwise. - - - messages_unconfirmed - Number of published messages not yet - confirmed. On channels not in confirm mode, this - remains 0. - - - - If no channelinfoitems are specified then pid, - user, transactional, consumer_count, and - messages_unacknowledged are assumed. - - - - For example: - - rabbitmqctl list_channels connection messages_unacknowledged - - This command displays the connection process and count - of unacknowledged messages for each channel. - - - - - - list_consumers - - - List consumers, i.e. subscriptions to a queue's message - stream. Each line printed shows, separated by tab - characters, the name of the queue subscribed to, the id of - the channel process via which the subscription was created - and is managed, the consumer tag which uniquely identifies - the subscription within a channel, and a boolean - indicating whether acknowledgements are expected for - messages delivered to this consumer. - - - The output format for "list_consumers" is a list of rows containing, - in order, the queue name, channel process id, consumer tag, and a - boolean indicating whether acknowledgements are expected from the - consumer. - - - - - - - - diff --git a/docs/remove-namespaces.xsl b/docs/remove-namespaces.xsl deleted file mode 100644 index 7f7f3c12..00000000 --- a/docs/remove-namespaces.xsl +++ /dev/null @@ -1,18 +0,0 @@ - - - - - - - - - - - - - - - diff --git a/docs/usage.xsl b/docs/usage.xsl deleted file mode 100644 index a6cebd93..00000000 --- a/docs/usage.xsl +++ /dev/null @@ -1,78 +0,0 @@ - - - - - - - - - - -%% Generated, do not edit! --module(). --export([usage/0]). -usage() -> %QUOTE%Usage: - - - - - - - - - - - - Options: - - - - - , - - - - - - - - - - - - - Commands: - - - - - - - - - -%QUOTE%. - - - -<> must be a member of the list [, ]. - - - - - - - - - -[] -<> - - diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in deleted file mode 100644 index cc7221d6..00000000 --- a/ebin/rabbit_app.in +++ /dev/null @@ -1,37 +0,0 @@ -{application, rabbit, %% -*- erlang -*- - [{description, "RabbitMQ"}, - {id, "RabbitMQ"}, - {vsn, "%%VSN%%"}, - {modules, []}, - {registered, [rabbit_amqqueue_sup, - rabbit_log, - rabbit_node_monitor, - rabbit_router, - rabbit_sup, - rabbit_tcp_client_sup, - rabbit_direct_client_sup]}, - {applications, [kernel, stdlib, sasl, mnesia, os_mon]}, -%% we also depend on crypto, public_key and ssl but they shouldn't be -%% in here as we don't actually want to start it - {mod, {rabbit, []}}, - {env, [{tcp_listeners, [5672]}, - {ssl_listeners, []}, - {ssl_options, []}, - {vm_memory_high_watermark, 0.4}, - {msg_store_index_module, rabbit_msg_store_ets_index}, - {backing_queue_module, rabbit_variable_queue}, - {persister_max_wrap_entries, 500}, - {persister_hibernate_after, 10000}, - {msg_store_file_size_limit, 16777216}, - {queue_index_max_journal_entries, 262144}, - {default_user, <<"guest">>}, - {default_pass, <<"guest">>}, - {default_user_is_admin, true}, - {default_vhost, <<"/">>}, - {default_permissions, [<<".*">>, <<".*">>, <<".*">>]}, - {cluster_nodes, []}, - {server_properties, []}, - {collect_statistics, none}, - {auth_mechanisms, ['PLAIN', 'AMQPLAIN']}, - {auth_backends, [rabbit_auth_backend_internal]}, - {delegate_count, 16}]}]}. diff --git a/generate_app b/generate_app deleted file mode 100644 index 576b485e..00000000 --- a/generate_app +++ /dev/null @@ -1,12 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- - -main([BeamDir, TargetFile]) -> - Modules = [list_to_atom(filename:basename(F, ".beam")) || - F <- filelib:wildcard("*.beam", BeamDir)], - {ok, {application, Application, Properties}} = io:read(''), - NewProperties = lists:keyreplace(modules, 1, Properties, - {modules, Modules}), - file:write_file( - TargetFile, - io_lib:format("~p.~n", [{application, Application, NewProperties}])). diff --git a/generate_deps b/generate_deps deleted file mode 100644 index ddfca816..00000000 --- a/generate_deps +++ /dev/null @@ -1,57 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- --mode(compile). - -%% We expect the list of Erlang source and header files to arrive on -%% stdin, with the entries colon-separated. -main([TargetFile, EbinDir]) -> - ErlsAndHrls = [ string:strip(S,left) || - S <- string:tokens(io:get_line(""), ":\n")], - ErlFiles = [F || F <- ErlsAndHrls, lists:suffix(".erl", F)], - Modules = sets:from_list( - [list_to_atom(filename:basename(FileName, ".erl")) || - FileName <- ErlFiles]), - HrlFiles = [F || F <- ErlsAndHrls, lists:suffix(".hrl", F)], - IncludeDirs = lists:usort([filename:dirname(Path) || Path <- HrlFiles]), - Headers = sets:from_list(HrlFiles), - Deps = lists:foldl( - fun (Path, Deps1) -> - dict:store(Path, detect_deps(IncludeDirs, EbinDir, - Modules, Headers, Path), - Deps1) - end, dict:new(), ErlFiles), - {ok, Hdl} = file:open(TargetFile, [write, delayed_write]), - dict:fold( - fun (_Path, [], ok) -> - ok; - (Path, Dep, ok) -> - Module = filename:basename(Path, ".erl"), - ok = file:write(Hdl, [EbinDir, "/", Module, ".beam: ", - Path]), - ok = sets:fold(fun (E, ok) -> file:write(Hdl, [" ", E]) end, - ok, Dep), - file:write(Hdl, ["\n"]) - end, ok, Deps), - ok = file:write(Hdl, [TargetFile, ": ", escript:script_name(), "\n"]), - ok = file:sync(Hdl), - ok = file:close(Hdl). - -detect_deps(IncludeDirs, EbinDir, Modules, Headers, Path) -> - {ok, Forms} = epp:parse_file(Path, IncludeDirs, [{use_specs, true}]), - lists:foldl( - fun ({attribute, _LineNumber, Attribute, Behaviour}, Deps) - when Attribute =:= behaviour orelse Attribute =:= behavior -> - case sets:is_element(Behaviour, Modules) of - true -> sets:add_element( - [EbinDir, "/", atom_to_list(Behaviour), ".beam"], - Deps); - false -> Deps - end; - ({attribute, _LineNumber, file, {FileName, _LineNumber1}}, Deps) -> - case sets:is_element(FileName, Headers) of - true -> sets:add_element(FileName, Deps); - false -> Deps - end; - (_Form, Deps) -> - Deps - end, sets:new(), Forms). diff --git a/include/rabbit.hrl b/include/rabbit.hrl deleted file mode 100644 index a4b80b09..00000000 --- a/include/rabbit.hrl +++ /dev/null @@ -1,98 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --record(user, {username, - is_admin, - auth_backend, %% Module this user came from - impl %% Scratch space for that module - }). - --record(internal_user, {username, password_hash, is_admin}). --record(permission, {configure, write, read}). --record(user_vhost, {username, virtual_host}). --record(user_permission, {user_vhost, permission}). - --record(vhost, {virtual_host, dummy}). - --record(connection, {protocol, user, timeout_sec, frame_max, vhost, - client_properties}). - --record(content, - {class_id, - properties, %% either 'none', or a decoded record/tuple - properties_bin, %% either 'none', or an encoded properties binary - %% Note: at most one of properties and properties_bin can be - %% 'none' at once. - protocol, %% The protocol under which properties_bin was encoded - payload_fragments_rev %% list of binaries, in reverse order (!) - }). - --record(resource, {virtual_host, kind, name}). - --record(exchange, {name, type, durable, auto_delete, internal, arguments}). - --record(amqqueue, {name, durable, auto_delete, exclusive_owner = none, - arguments, pid}). - -%% mnesia doesn't like unary records, so we add a dummy 'value' field --record(route, {binding, value = const}). --record(reverse_route, {reverse_binding, value = const}). - --record(binding, {source, key, destination, args = []}). --record(reverse_binding, {destination, key, source, args = []}). - --record(topic_trie_edge, {trie_edge, node_id}). --record(topic_trie_binding, {trie_binding, value = const}). - --record(trie_edge, {exchange_name, node_id, word}). --record(trie_binding, {exchange_name, node_id, destination}). - --record(listener, {node, protocol, host, ip_address, port}). - --record(basic_message, {exchange_name, routing_key, content, guid, - is_persistent}). - --record(ssl_socket, {tcp, ssl}). --record(delivery, {mandatory, immediate, txn, sender, message, - msg_seq_no}). --record(amqp_error, {name, explanation = "", method = none}). - --record(event, {type, props, timestamp}). - --record(message_properties, {expiry, needs_confirming = false}). - -%%---------------------------------------------------------------------------- - --define(COPYRIGHT_MESSAGE, "Copyright (C) 2007-2011 VMware, Inc."). --define(INFORMATION_MESSAGE, "Licensed under the MPL. See http://www.rabbitmq.com/"). --define(PROTOCOL_VERSION, "AMQP 0-9-1 / 0-9 / 0-8"). --define(ERTS_MINIMUM, "5.6.3"). - --define(MAX_WAIT, 16#ffffffff). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(STATS_INTERVAL, 5000). - --ifdef(debug). --define(LOGDEBUG0(F), rabbit_log:debug(F)). --define(LOGDEBUG(F,A), rabbit_log:debug(F,A)). --define(LOGMESSAGE(D,C,M,Co), rabbit_log:message(D,C,M,Co)). --else. --define(LOGDEBUG0(F), ok). --define(LOGDEBUG(F,A), ok). --define(LOGMESSAGE(D,C,M,Co), ok). --endif. diff --git a/include/rabbit_auth_backend_spec.hrl b/include/rabbit_auth_backend_spec.hrl deleted file mode 100644 index e26d44ea..00000000 --- a/include/rabbit_auth_backend_spec.hrl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). - --spec(check_user_login/2 :: (rabbit_types:username(), [term()]) -> - {'ok', rabbit_types:user()} | - {'refused', string(), [any()]} | - {'error', any()}). --spec(check_vhost_access/3 :: (rabbit_types:user(), rabbit_types:vhost(), - rabbit_access_control:vhost_permission_atom()) -> - boolean() | {'error', any()}). --spec(check_resource_access/3 :: (rabbit_types:user(), - rabbit_types:r(atom()), - rabbit_access_control:permission_atom()) -> - boolean() | {'error', any()}). --endif. diff --git a/include/rabbit_auth_mechanism_spec.hrl b/include/rabbit_auth_mechanism_spec.hrl deleted file mode 100644 index 49614d5f..00000000 --- a/include/rabbit_auth_mechanism_spec.hrl +++ /dev/null @@ -1,27 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(init/1 :: (rabbit_net:socket()) -> any()). --spec(handle_response/2 :: (binary(), any()) -> - {'ok', rabbit_types:user()} | - {'challenge', binary(), any()} | - {'protocol_error', string(), [any()]} | - {'refused', string(), [any()]}). - --endif. diff --git a/include/rabbit_backing_queue_spec.hrl b/include/rabbit_backing_queue_spec.hrl deleted file mode 100644 index accb2c0e..00000000 --- a/include/rabbit_backing_queue_spec.hrl +++ /dev/null @@ -1,67 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --type(fetch_result(Ack) :: - ('empty' | - %% Message, IsDelivered, AckTag, Remaining_Len - {rabbit_types:basic_message(), boolean(), Ack, non_neg_integer()})). --type(is_durable() :: boolean()). --type(attempt_recovery() :: boolean()). --type(purged_msg_count() :: non_neg_integer()). --type(confirm_required() :: boolean()). --type(message_properties_transformer() :: - fun ((rabbit_types:message_properties()) - -> rabbit_types:message_properties())). - --spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(init/3 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) -> - state()). --spec(terminate/1 :: (state()) -> state()). --spec(delete_and_terminate/1 :: (state()) -> state()). --spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). --spec(publish/3 :: (rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) -> state()). --spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) - -> {ack(), state()}; - (false, rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) - -> {undefined, state()}). --spec(dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> state()). --spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; - (false, state()) -> {fetch_result(undefined), state()}). --spec(ack/2 :: ([ack()], state()) -> state()). --spec(tx_publish/4 :: (rabbit_types:txn(), rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) -> state()). --spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). --spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). --spec(tx_commit/4 :: - (rabbit_types:txn(), fun (() -> any()), - message_properties_transformer(), state()) -> {[ack()], state()}). --spec(requeue/3 :: ([ack()], message_properties_transformer(), state()) - -> state()). --spec(len/1 :: (state()) -> non_neg_integer()). --spec(is_empty/1 :: (state()) -> boolean()). --spec(set_ram_duration_target/2 :: - (('undefined' | 'infinity' | number()), state()) -> state()). --spec(ram_duration/1 :: (state()) -> {number(), state()}). --spec(needs_idle_timeout/1 :: (state()) -> boolean()). --spec(idle_timeout/1 :: (state()) -> state()). --spec(handle_pre_hibernate/1 :: (state()) -> state()). --spec(status/1 :: (state()) -> [{atom(), any()}]). diff --git a/include/rabbit_exchange_type_spec.hrl b/include/rabbit_exchange_type_spec.hrl deleted file mode 100644 index 45c475d8..00000000 --- a/include/rabbit_exchange_type_spec.hrl +++ /dev/null @@ -1,36 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(route/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> rabbit_router:match_result()). --spec(validate/1 :: (rabbit_types:exchange()) -> 'ok'). --spec(create/2 :: (boolean(), rabbit_types:exchange()) -> 'ok'). --spec(recover/2 :: (rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(delete/3 :: (boolean(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(add_binding/3 :: (boolean(), rabbit_types:exchange(), - rabbit_types:binding()) -> 'ok'). --spec(remove_bindings/3 :: (boolean(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). - --endif. diff --git a/include/rabbit_msg_store.hrl b/include/rabbit_msg_store.hrl deleted file mode 100644 index 9d704f65..00000000 --- a/include/rabbit_msg_store.hrl +++ /dev/null @@ -1,26 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit.hrl"). - --ifdef(use_specs). - --type(msg() :: any()). - --endif. - --record(msg_location, - {guid, ref_count, file, offset, total_size}). diff --git a/include/rabbit_msg_store_index.hrl b/include/rabbit_msg_store_index.hrl deleted file mode 100644 index 289f8f60..00000000 --- a/include/rabbit_msg_store_index.hrl +++ /dev/null @@ -1,45 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit_msg_store.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(dir() :: any()). --type(index_state() :: any()). --type(keyvalue() :: any()). --type(fieldpos() :: non_neg_integer()). --type(fieldvalue() :: any()). - --spec(new/1 :: (dir()) -> index_state()). --spec(recover/1 :: (dir()) -> rabbit_types:ok_or_error2(index_state(), any())). --spec(lookup/2 :: - (rabbit_guid:guid(), index_state()) -> ('not_found' | keyvalue())). --spec(insert/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update_fields/3 :: (rabbit_guid:guid(), ({fieldpos(), fieldvalue()} | - [{fieldpos(), fieldvalue()}]), - index_state()) -> 'ok'). --spec(delete/2 :: (rabbit_guid:guid(), index_state()) -> 'ok'). --spec(delete_object/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(delete_by_file/2 :: (fieldvalue(), index_state()) -> 'ok'). --spec(terminate/1 :: (index_state()) -> any()). - --endif. - -%%---------------------------------------------------------------------------- diff --git a/packaging/RPMS/Fedora/Makefile b/packaging/RPMS/Fedora/Makefile deleted file mode 100644 index 74a1800a..00000000 --- a/packaging/RPMS/Fedora/Makefile +++ /dev/null @@ -1,45 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -TOP_DIR=$(shell pwd) -#Under debian we do not want to check build dependencies, since that -#only checks build-dependencies using rpms, not debs -DEFINES=--define '_topdir $(TOP_DIR)' --define '_tmppath $(TOP_DIR)/tmp' --define '_sysconfdir /etc' --define '_localstatedir /var' - -ifndef RPM_OS -RPM_OS=fedora -endif - -ifeq "x$(RPM_OS)" "xsuse" -REQUIRES=/sbin/chkconfig /sbin/service -OS_DEFINES=--define '_initrddir /etc/init.d' --define 'dist .suse' -else -REQUIRES=chkconfig initscripts -OS_DEFINES=--define '_initrddir /etc/rc.d/init.d' -endif - -rpms: clean server - -prepare: - mkdir -p BUILD SOURCES SPECS SRPMS RPMS tmp - cp $(TARBALL_DIR)/$(TARBALL) SOURCES - cp rabbitmq-server.spec SPECS - sed -i 's|%%VERSION%%|$(VERSION)|;s|%%REQUIRES%%|$(REQUIRES)|' \ - SPECS/rabbitmq-server.spec - - cp ${COMMON_DIR}/* SOURCES/ - sed -i \ - -e 's|^DEFAULTS_FILE=.*$$|DEFAULTS_FILE=/etc/sysconfig/rabbitmq|' \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=/var/lock/subsys/$$NAME|' \ - SOURCES/rabbitmq-server.init - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - SOURCES/rabbitmq-script-wrapper - cp rabbitmq-server.logrotate SOURCES/rabbitmq-server.logrotate - -server: prepare - rpmbuild -ba --nodeps SPECS/rabbitmq-server.spec $(DEFINES) $(OS_DEFINES) - -clean: - rm -rf SOURCES SPECS RPMS SRPMS BUILD tmp diff --git a/packaging/RPMS/Fedora/rabbitmq-server.logrotate b/packaging/RPMS/Fedora/rabbitmq-server.logrotate deleted file mode 100644 index 6b657614..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /sbin/service rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec deleted file mode 100644 index 47316864..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ /dev/null @@ -1,200 +0,0 @@ -%define debug_package %{nil} - -Name: rabbitmq-server -Version: %%VERSION%% -Release: 1%{?dist} -License: MPLv1.1 -Group: Development/Libraries -Source: http://www.rabbitmq.com/releases/rabbitmq-server/v%{version}/%{name}-%{version}.tar.gz -Source1: rabbitmq-server.init -Source2: rabbitmq-script-wrapper -Source3: rabbitmq-server.logrotate -Source4: rabbitmq-server.ocf -URL: http://www.rabbitmq.com/ -BuildArch: noarch -BuildRequires: erlang >= R12B-3, python-simplejson, xmlto, libxslt -Requires: erlang >= R12B-3, logrotate -BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-%{_arch}-root -Summary: The RabbitMQ server -Requires(post): %%REQUIRES%% -Requires(pre): %%REQUIRES%% - -%description -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -# We want to install into /usr/lib, even on 64-bit platforms -%define _rabbit_libdir %{_exec_prefix}/lib/rabbitmq -%define _rabbit_erllibdir %{_rabbit_libdir}/lib/rabbitmq_server-%{version} -%define _rabbit_wrapper %{_builddir}/`basename %{S:2}` -%define _rabbit_server_ocf %{_builddir}/`basename %{S:4}` -%define _plugins_state_dir %{_localstatedir}/lib/rabbitmq/plugins - -%define _maindir %{buildroot}%{_rabbit_erllibdir} - -%prep -%setup -q - -%build -cp %{S:2} %{_rabbit_wrapper} -cp %{S:4} %{_rabbit_server_ocf} -make %{?_smp_mflags} - -%install -rm -rf %{buildroot} - -make install TARGET_DIR=%{_maindir} \ - SBIN_DIR=%{buildroot}%{_rabbit_libdir}/bin \ - MAN_DIR=%{buildroot}%{_mandir} - -mkdir -p %{buildroot}%{_localstatedir}/lib/rabbitmq/mnesia -mkdir -p %{buildroot}%{_localstatedir}/log/rabbitmq - -#Copy all necessary lib files etc. -install -p -D -m 0755 %{S:1} %{buildroot}%{_initrddir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmqctl -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-multi -install -p -D -m 0755 %{_rabbit_server_ocf} %{buildroot}%{_exec_prefix}/lib/ocf/resource.d/rabbitmq/rabbitmq-server - -install -p -D -m 0644 %{S:3} %{buildroot}%{_sysconfdir}/logrotate.d/rabbitmq-server - -mkdir -p %{buildroot}%{_sysconfdir}/rabbitmq - -rm %{_maindir}/LICENSE %{_maindir}/LICENSE-MPL-RabbitMQ %{_maindir}/INSTALL - -#Build the list of files -rm -f %{_builddir}/%{name}.files -echo '%defattr(-,root,root, -)' >> %{_builddir}/%{name}.files -(cd %{buildroot}; \ - find . -type f ! -regex '\.%{_sysconfdir}.*' \ - ! -regex '\.\(%{_rabbit_erllibdir}\|%{_rabbit_libdir}\).*' \ - | sed -e 's/^\.//' >> %{_builddir}/%{name}.files) - -%pre - -if [ $1 -gt 1 ]; then - # Upgrade - stop previous instance of rabbitmq-server init.d script - /sbin/service rabbitmq-server stop -fi - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - groupadd -r rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - useradd -r -g rabbitmq -d %{_localstatedir}/lib/rabbitmq rabbitmq \ - -c "RabbitMQ messaging server" -fi - -%post -/sbin/chkconfig --add %{name} - -%preun -if [ $1 = 0 ]; then - #Complete uninstall - /sbin/service rabbitmq-server stop - /sbin/chkconfig --del rabbitmq-server - - # We do not remove /var/log and /var/lib directories - # Leave rabbitmq user and group -fi - -# Clean out plugin activation state, both on uninstall and upgrade -rm -rf %{_plugins_state_dir} -for ext in rel script boot ; do - rm -f %{_rabbit_erllibdir}/ebin/rabbit.$ext -done - -%files -f ../%{name}.files -%defattr(-,root,root,-) -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/lib/rabbitmq -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/log/rabbitmq -%dir %{_sysconfdir}/rabbitmq -%{_rabbit_erllibdir} -%{_rabbit_libdir} -%{_initrddir}/rabbitmq-server -%config(noreplace) %{_sysconfdir}/logrotate.d/rabbitmq-server -%doc LICENSE LICENSE-MPL-RabbitMQ - -%clean -rm -rf %{buildroot} - -%changelog -* Thu Feb 3 2011 simon@rabbitmq.com 2.3.1-1 -- New Upstream Release - -* Tue Feb 1 2011 simon@rabbitmq.com 2.3.0-1 -- New Upstream Release - -* Mon Nov 29 2010 rob@rabbitmq.com 2.2.0-1 -- New Upstream Release - -* Tue Oct 19 2010 vlad@rabbitmq.com 2.1.1-1 -- New Upstream Release - -* Tue Sep 14 2010 marek@rabbitmq.com 2.1.0-1 -- New Upstream Release - -* Mon Aug 23 2010 mikeb@rabbitmq.com 2.0.0-1 -- New Upstream Release - -* Wed Jul 14 2010 Emile Joubert 1.8.1-1 -- New Upstream Release - -* Tue Jun 15 2010 Matthew Sackman 1.8.0-1 -- New Upstream Release - -* Mon Feb 15 2010 Matthew Sackman 1.7.2-1 -- New Upstream Release - -* Fri Jan 22 2010 Matthew Sackman 1.7.1-1 -- New Upstream Release - -* Mon Oct 5 2009 David Wragg 1.7.0-1 -- New upstream release - -* Wed Jun 17 2009 Matthias Radestock 1.6.0-1 -- New upstream release - -* Tue May 19 2009 Matthias Radestock 1.5.5-1 -- Maintenance release for the 1.5.x series - -* Mon Apr 6 2009 Matthias Radestock 1.5.4-1 -- Maintenance release for the 1.5.x series - -* Tue Feb 24 2009 Tony Garnock-Jones 1.5.3-1 -- Maintenance release for the 1.5.x series - -* Mon Feb 23 2009 Tony Garnock-Jones 1.5.2-1 -- Maintenance release for the 1.5.x series - -* Mon Jan 19 2009 Ben Hood <0x6e6562@gmail.com> 1.5.1-1 -- Maintenance release for the 1.5.x series - -* Wed Dec 17 2008 Matthias Radestock 1.5.0-1 -- New upstream release - -* Thu Jul 24 2008 Tony Garnock-Jones 1.4.0-1 -- New upstream release - -* Mon Mar 3 2008 Adrien Pierard 1.3.0-1 -- New upstream release - -* Wed Sep 26 2007 Simon MacMullen 1.2.0-1 -- New upstream release - -* Wed Aug 29 2007 Simon MacMullen 1.1.1-1 -- New upstream release - -* Mon Jul 30 2007 Simon MacMullen 1.1.0-1.alpha -- New upstream release - -* Tue Jun 12 2007 Hubert Plociniczak 1.0.0-1.20070607 -- Building from source tarball, added starting script, stopping - -* Mon May 21 2007 Hubert Plociniczak 1.0.0-1.alpha -- Initial build of server library of RabbitMQ package diff --git a/packaging/common/rabbitmq-script-wrapper b/packaging/common/rabbitmq-script-wrapper deleted file mode 100644 index 23d2a06c..00000000 --- a/packaging/common/rabbitmq-script-wrapper +++ /dev/null @@ -1,42 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Escape spaces and quotes, because shell is revolting. -for arg in "$@" ; do - # Escape quotes in parameters, so that they're passed through cleanly. - arg=$(sed -e 's/"/\\"/g' <<-END - $arg - END - ) - CMDLINE="${CMDLINE} \"${arg}\"" -done - -cd /var/lib/rabbitmq - -SCRIPT=`basename $0` - -if [ `id -u` = 0 ] ; then - @SU_RABBITMQ_SH_C@ "/usr/lib/rabbitmq/bin/${SCRIPT} ${CMDLINE}" -elif [ `id -u` = `id -u rabbitmq` ] ; then - /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -else - /usr/lib/rabbitmq/bin/${SCRIPT} - echo - echo "Only root or rabbitmq should run ${SCRIPT}" - echo - exit 1 -fi diff --git a/packaging/common/rabbitmq-server.init b/packaging/common/rabbitmq-server.init deleted file mode 100644 index 39d23983..00000000 --- a/packaging/common/rabbitmq-server.init +++ /dev/null @@ -1,136 +0,0 @@ -#!/bin/sh -# -# rabbitmq-server RabbitMQ broker -# -# chkconfig: - 80 05 -# description: Enable AMQP service provided by RabbitMQ -# - -### BEGIN INIT INFO -# Provides: rabbitmq-server -# Required-Start: $remote_fs $network -# Required-Stop: $remote_fs $network -# Default-Start: -# Default-Stop: -# Description: RabbitMQ broker -# Short-Description: Enable AMQP service provided by RabbitMQ broker -### END INIT INFO - -PATH=/sbin:/usr/sbin:/bin:/usr/bin -DAEMON=/usr/sbin/rabbitmq-multi -NAME=rabbitmq-server -DESC=rabbitmq-server -USER=rabbitmq -NODE_COUNT=1 -ROTATE_SUFFIX= -INIT_LOG_DIR=/var/log/rabbitmq - -DEFAULTS_FILE= # This is filled in when building packages -LOCK_FILE= # This is filled in when building packages - -test -x $DAEMON || exit 0 - -# Include rabbitmq defaults if available -if [ -f "$DEFAULTS_FILE" ] ; then - . $DEFAULTS_FILE -fi - -RETVAL=0 -set -e - -start_rabbitmq () { - set +e - $DAEMON start_all ${NODE_COUNT} > ${INIT_LOG_DIR}/startup_log 2> ${INIT_LOG_DIR}/startup_err - case "$?" in - 0) - echo SUCCESS - [ -n "$LOCK_FILE" ] && touch $LOCK_FILE - RETVAL=0 - ;; - 1) - echo TIMEOUT - check ${INIT_LOG_DIR}/startup_\{log,err\} - RETVAL=1 - ;; - *) - echo FAILED - check ${INIT_LOG_DIR}/startup_log, _err - RETVAL=1 - ;; - esac - set -e -} - -stop_rabbitmq () { - set +e - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - $DAEMON stop_all > ${INIT_LOG_DIR}/shutdown_log 2> ${INIT_LOG_DIR}/shutdown_err - RETVAL=$? - if [ $RETVAL = 0 ] ; then - [ -n "$LOCK_FILE" ] && rm -rf $LOCK_FILE - else - echo FAILED - check ${INIT_LOG_DIR}/shutdown_log, _err - fi - else - echo No nodes running - RETVAL=0 - fi - set -e -} - -status_rabbitmq() { - set +e - if [ "$1" != "quiet" ] ; then - $DAEMON status 2>&1 - else - $DAEMON status > /dev/null 2>&1 - fi - if [ $? != 0 ] ; then - RETVAL=1 - fi - set -e -} - -rotate_logs_rabbitmq() { - set +e - $DAEMON rotate_logs ${ROTATE_SUFFIX} - if [ $? != 0 ] ; then - RETVAL=1 - fi - set -e -} - -restart_rabbitmq() { - stop_rabbitmq - start_rabbitmq -} - -case "$1" in - start) - echo -n "Starting $DESC: " - start_rabbitmq - echo "$NAME." - ;; - stop) - echo -n "Stopping $DESC: " - stop_rabbitmq - echo "$NAME." - ;; - status) - status_rabbitmq - ;; - rotate-logs) - echo -n "Rotating log files for $DESC: " - rotate_logs_rabbitmq - ;; - force-reload|reload|restart|condrestart|try-restart) - echo -n "Restarting $DESC: " - restart_rabbitmq - echo "$NAME." - ;; - *) - echo "Usage: $0 {start|stop|status|rotate-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 - RETVAL=1 - ;; -esac - -exit $RETVAL diff --git a/packaging/common/rabbitmq-server.ocf b/packaging/common/rabbitmq-server.ocf deleted file mode 100755 index dc0521dd..00000000 --- a/packaging/common/rabbitmq-server.ocf +++ /dev/null @@ -1,343 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -## -## OCF Resource Agent compliant rabbitmq-server resource script. -## - -## OCF instance parameters -## OCF_RESKEY_multi -## OCF_RESKEY_ctl -## OCF_RESKEY_nodename -## OCF_RESKEY_ip -## OCF_RESKEY_port -## OCF_RESKEY_config_file -## OCF_RESKEY_log_base -## OCF_RESKEY_mnesia_base -## OCF_RESKEY_server_start_args - -####################################################################### -# Initialization: - -: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/heartbeat} -. ${OCF_FUNCTIONS_DIR}/.ocf-shellfuncs - -####################################################################### - -OCF_RESKEY_multi_default="/usr/sbin/rabbitmq-multi" -OCF_RESKEY_ctl_default="/usr/sbin/rabbitmqctl" -OCF_RESKEY_nodename_default="rabbit@localhost" -OCF_RESKEY_log_base_default="/var/log/rabbitmq" -: ${OCF_RESKEY_multi=${OCF_RESKEY_multi_default}} -: ${OCF_RESKEY_ctl=${OCF_RESKEY_ctl_default}} -: ${OCF_RESKEY_nodename=${OCF_RESKEY_nodename_default}} -: ${OCF_RESKEY_log_base=${OCF_RESKEY_log_base_default}} - -meta_data() { - cat < - - -1.0 - - -Resource agent for RabbitMQ-server - - -Resource agent for RabbitMQ-server - - - - -The path to the rabbitmq-multi script - -Path to rabbitmq-multi - - - - - -The path to the rabbitmqctl script - -Path to rabbitmqctl - - - - - -The node name for rabbitmq-server - -Node name - - - - - -The IP address for rabbitmq-server to listen on - -IP Address - - - - - -The IP Port for rabbitmq-server to listen on - -IP Port - - - - - -Location of the config file - -Config file path - - - - - -Location of the directory under which logs will be created - -Log base path - - - - - -Location of the directory under which mnesia will store data - -Mnesia base path - - - - - -Additional arguments provided to the server on startup - -Server start arguments - - - - - - - - - - - - - - -END -} - -rabbit_usage() { - cat < /dev/null 2> /dev/null - rc=$? - case "$rc" in - 0) - ocf_log debug "RabbitMQ server is running normally" - return $OCF_SUCCESS - ;; - 2) - ocf_log debug "RabbitMQ server is not running" - return $OCF_NOT_RUNNING - ;; - *) - ocf_log err "Unexpected return from rabbitmqctl $NODENAME_ARG status: $rc" - exit $OCF_ERR_GENERIC - esac -} - -rabbit_start() { - local rc - - if rabbit_status; then - ocf_log info "Resource already running." - return $OCF_SUCCESS - fi - - export_vars - - $RABBITMQ_MULTI start_all 1 > ${RABBITMQ_LOG_BASE}/startup_log 2> ${RABBITMQ_LOG_BASE}/startup_err & - rc=$? - - if [ "$rc" != 0 ]; then - ocf_log err "rabbitmq-server start command failed: $RABBITMQ_MULTI start_all 1, $rc" - return $rc - fi - - # Spin waiting for the server to come up. - # Let the CRM/LRM time us out if required - start_wait=1 - while [ $start_wait = 1 ]; do - rabbit_status - rc=$? - if [ "$rc" = $OCF_SUCCESS ]; then - start_wait=0 - elif [ "$rc" != $OCF_NOT_RUNNING ]; then - ocf_log info "rabbitmq-server start failed: $rc" - exit $OCF_ERR_GENERIC - fi - sleep 1 - done - - return $OCF_SUCCESS -} - -rabbit_stop() { - local rc - - if ! rabbit_status; then - ocf_log info "Resource not running." - return $OCF_SUCCESS - fi - - $RABBITMQ_MULTI stop_all & - rc=$? - - if [ "$rc" != 0 ]; then - ocf_log err "rabbitmq-server stop command failed: $RABBITMQ_MULTI stop_all, $rc" - return $rc - fi - - # Spin waiting for the server to shut down. - # Let the CRM/LRM time us out if required - stop_wait=1 - while [ $stop_wait = 1 ]; do - rabbit_status - rc=$? - if [ "$rc" = $OCF_NOT_RUNNING ]; then - stop_wait=0 - break - elif [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server stop failed: $rc" - exit $OCF_ERR_GENERIC - fi - sleep 1 - done - - return $OCF_SUCCESS -} - -rabbit_monitor() { - rabbit_status - return $? -} - -case $__OCF_ACTION in - meta-data) - meta_data - exit $OCF_SUCCESS - ;; - usage|help) - rabbit_usage - exit $OCF_SUCCESS - ;; -esac - -if ocf_is_probe; then - rabbit_validate_partial -else - rabbit_validate_full -fi - -case $__OCF_ACTION in - start) - rabbit_start - ;; - stop) - rabbit_stop - ;; - status|monitor) - rabbit_monitor - ;; - validate-all) - exit $OCF_SUCCESS - ;; - *) - rabbit_usage - exit $OCF_ERR_UNIMPLEMENTED - ;; -esac - -exit $? diff --git a/packaging/debs/Debian/Makefile b/packaging/debs/Debian/Makefile deleted file mode 100644 index ab05f732..00000000 --- a/packaging/debs/Debian/Makefile +++ /dev/null @@ -1,42 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -DEBIAN_ORIG_TARBALL=$(shell echo $(TARBALL) | sed -e 's:\(.*\)-\(.*\)\(\.tar\.gz\):\1_\2\.orig\3:g') -UNPACKED_DIR=rabbitmq-server-$(VERSION) -PACKAGENAME=rabbitmq-server -SIGNING_KEY_ID=056E8E56 - -ifneq "$(UNOFFICIAL_RELEASE)" "" - SIGNING=-us -uc -else - SIGNING=-k$(SIGNING_KEY_ID) -endif - -all: - @echo 'Please choose a target from the Makefile.' - -package: clean - cp $(TARBALL_DIR)/$(TARBALL) $(DEBIAN_ORIG_TARBALL) - tar -zxvf $(DEBIAN_ORIG_TARBALL) - cp -r debian $(UNPACKED_DIR) - cp $(COMMON_DIR)/* $(UNPACKED_DIR)/debian/ - sed -i \ - -e 's|^DEFAULTS_FILE=.*$$|DEFAULTS_FILE=/etc/default/rabbitmq|' \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=|' \ - $(UNPACKED_DIR)/debian/rabbitmq-server.init - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - $(UNPACKED_DIR)/debian/rabbitmq-script-wrapper - chmod a+x $(UNPACKED_DIR)/debian/rules - UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) - cd $(UNPACKED_DIR); GNUPGHOME=$(GNUPG_PATH)/.gnupg dpkg-buildpackage -rfakeroot $(SIGNING) - rm -rf $(UNPACKED_DIR) - -clean: - rm -rf $(UNPACKED_DIR) - rm -f $(PACKAGENAME)_*.tar.gz - rm -f $(PACKAGENAME)_*.diff.gz - rm -f $(PACKAGENAME)_*.dsc - rm -f $(PACKAGENAME)_*_*.changes - rm -f $(PACKAGENAME)_*_*.deb diff --git a/packaging/debs/Debian/check-changelog.sh b/packaging/debs/Debian/check-changelog.sh deleted file mode 100755 index ff25e648..00000000 --- a/packaging/debs/Debian/check-changelog.sh +++ /dev/null @@ -1,29 +0,0 @@ -#!/bin/sh - -PACKAGE_NAME=$1 -cd $2 - -CHANGELOG_VERSION=$(dpkg-parsechangelog | sed -n 's/^Version: \(.*\)-[^-]*$/\1/p') - -if [ "${CHANGELOG_VERSION}" != "${VERSION}" ]; then - if [ -n "${UNOFFICIAL_RELEASE}" ]; then - echo "${PACKAGE_NAME} (${VERSION}-1) unstable; urgency=low" > debian/changelog.tmp - echo >> debian/changelog.tmp - echo " * Unofficial release" >> debian/changelog.tmp - echo >> debian/changelog.tmp - echo " -- Nobody $(date -R)" >> debian/changelog.tmp - echo >> debian/changelog.tmp - cat debian/changelog >> debian/changelog.tmp - mv -f debian/changelog.tmp debian/changelog - - exit 0 - else - echo - echo There is no entry in debian/changelog for version ${VERSION}! - echo Please create a changelog entry, or set the variable - echo UNOFFICIAL_RELEASE to automatically create one. - echo - - exit 1 - fi -fi diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog deleted file mode 100644 index 12165dc0..00000000 --- a/packaging/debs/Debian/debian/changelog +++ /dev/null @@ -1,156 +0,0 @@ -rabbitmq-server (2.3.1-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Thu, 03 Feb 2011 12:43:56 +0000 - -rabbitmq-server (2.3.0-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Tue, 01 Feb 2011 12:52:16 +0000 - -rabbitmq-server (2.2.0-1) lucid; urgency=low - - * New Upstream Release - - -- Rob Harrop Mon, 29 Nov 2010 12:24:48 +0000 - -rabbitmq-server (2.1.1-1) lucid; urgency=low - - * New Upstream Release - - -- Vlad Alexandru Ionescu Tue, 19 Oct 2010 17:20:10 +0100 - -rabbitmq-server (2.1.0-1) lucid; urgency=low - - * New Upstream Release - - -- Marek Majkowski Tue, 14 Sep 2010 14:20:17 +0100 - -rabbitmq-server (2.0.0-1) karmic; urgency=low - - * New Upstream Release - - -- Michael Bridgen Mon, 23 Aug 2010 14:55:39 +0100 - -rabbitmq-server (1.8.1-1) lucid; urgency=low - - * New Upstream Release - - -- Emile Joubert Wed, 14 Jul 2010 15:05:24 +0100 - -rabbitmq-server (1.8.0-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Tue, 15 Jun 2010 12:48:48 +0100 - -rabbitmq-server (1.7.2-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Mon, 15 Feb 2010 15:54:47 +0000 - -rabbitmq-server (1.7.1-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Fri, 22 Jan 2010 14:14:29 +0000 - -rabbitmq-server (1.7.0-1) intrepid; urgency=low - - * New Upstream Release - - -- David Wragg Mon, 05 Oct 2009 13:44:41 +0100 - -rabbitmq-server (1.6.0-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 16 Jun 2009 15:02:58 +0100 - -rabbitmq-server (1.5.5-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 19 May 2009 09:57:54 +0100 - -rabbitmq-server (1.5.4-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Mon, 06 Apr 2009 09:19:32 +0100 - -rabbitmq-server (1.5.3-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Tue, 24 Feb 2009 18:23:33 +0000 - -rabbitmq-server (1.5.2-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Mon, 23 Feb 2009 16:03:38 +0000 - -rabbitmq-server (1.5.1-1) hardy; urgency=low - - * New Upstream Release - - -- Simon MacMullen Mon, 19 Jan 2009 15:46:13 +0000 - -rabbitmq-server (1.5.0-1) testing; urgency=low - - * New Upstream Release - - -- Matthias Radestock Wed, 17 Dec 2008 18:23:47 +0000 - -rabbitmq-server (1.4.0-1) testing; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Thu, 24 Jul 2008 13:21:48 +0100 - -rabbitmq-server (1.3.0-1) testing; urgency=low - - * New Upstream Release - - -- Adrien Pierard Mon, 03 Mar 2008 15:34:38 +0000 - -rabbitmq-server (1.2.0-2) testing; urgency=low - - * Fixed rabbitmqctl wrapper script - - -- Simon MacMullen Fri, 05 Oct 2007 11:55:00 +0100 - -rabbitmq-server (1.2.0-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 26 Sep 2007 11:49:26 +0100 - -rabbitmq-server (1.1.1-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 29 Aug 2007 12:03:15 +0100 - -rabbitmq-server (1.1.0-alpha-2) testing; urgency=low - - * Fixed erlang-nox dependency - - -- Simon MacMullen Thu, 02 Aug 2007 11:27:13 +0100 - -rabbitmq-server (1.1.0-alpha-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Fri, 20 Jul 2007 18:17:33 +0100 - -rabbitmq-server (1.0.0-alpha-1) unstable; urgency=low - - * Initial release - - -- Tony Garnock-Jones Wed, 31 Jan 2007 19:06:33 +0000 - diff --git a/packaging/debs/Debian/debian/compat b/packaging/debs/Debian/debian/compat deleted file mode 100644 index 7ed6ff82..00000000 --- a/packaging/debs/Debian/debian/compat +++ /dev/null @@ -1 +0,0 @@ -5 diff --git a/packaging/debs/Debian/debian/control b/packaging/debs/Debian/debian/control deleted file mode 100644 index 02da0cc6..00000000 --- a/packaging/debs/Debian/debian/control +++ /dev/null @@ -1,18 +0,0 @@ -Source: rabbitmq-server -Section: net -Priority: extra -Maintainer: RabbitMQ Team -Build-Depends: cdbs, debhelper (>= 5), erlang-dev, python-simplejson, xmlto, xsltproc -Standards-Version: 3.8.0 - -Package: rabbitmq-server -Architecture: all -# erlang-inets is not a strict dependency, but it's needed to allow -# the installation of plugins that use mochiweb. Ideally it would be a -# "Recommends" instead, but gdebi does not install those. -Depends: erlang-base (>= 1:12.b.3) | erlang-base-hipe (>= 1:12.b.3), erlang-ssl | erlang-nox (<< 1:13.b-dfsg1-1), erlang-os-mon | erlang-nox (<< 1:13.b-dfsg1-1), erlang-mnesia | erlang-nox (<< 1:13.b-dfsg1-1), erlang-inets | erlang-nox (<< 1:13.b-dfsg1-1), adduser, logrotate, ${misc:Depends} -Description: An AMQP server written in Erlang - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. -Homepage: http://www.rabbitmq.com/ diff --git a/packaging/debs/Debian/debian/copyright b/packaging/debs/Debian/debian/copyright deleted file mode 100755 index 7206bb9b..00000000 --- a/packaging/debs/Debian/debian/copyright +++ /dev/null @@ -1,502 +0,0 @@ -This package was debianized by Tony Garnock-Jones on -Wed, 3 Jan 2007 15:43:44 +0000. - -It was downloaded from http://www.rabbitmq.com/ - -The files codegen/amqp-rabbitmq-0.8.json and -codegen/amqp-rabbitmq-0.9.1.json are covered by the following terms: - - "Copyright (C) 2008-2011 VMware, Inc. - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this file (the Software), to deal in the - Software without restriction, including without limitation the - rights to use, copy, modify, merge, publish, distribute, - sublicense, and/or sell copies of the Software, and to permit - persons to whom the Software is furnished to do so, subject to - the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - OTHER DEALINGS IN THE SOFTWARE." - -The rest of this package is licensed under the Mozilla Public License 1.1 -Authors and Copyright are as described below: - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved. - - - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] - - - - - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. - -The Debian packaging is (C) 2007-2011, VMware, Inc. and is licensed -under the MPL 1.1, see above. diff --git a/packaging/debs/Debian/debian/dirs b/packaging/debs/Debian/debian/dirs deleted file mode 100644 index 625b7d41..00000000 --- a/packaging/debs/Debian/debian/dirs +++ /dev/null @@ -1,9 +0,0 @@ -usr/lib/rabbitmq/bin -usr/lib/erlang/lib -usr/sbin -usr/share/man -var/lib/rabbitmq/mnesia -var/log/rabbitmq -etc/logrotate.d -etc/rabbitmq - diff --git a/packaging/debs/Debian/debian/postinst b/packaging/debs/Debian/debian/postinst deleted file mode 100644 index 134f16ee..00000000 --- a/packaging/debs/Debian/debian/postinst +++ /dev/null @@ -1,56 +0,0 @@ -#!/bin/sh -# postinst script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `configure' -# * `abort-upgrade' -# * `abort-remove' `in-favour' -# -# * `abort-remove' -# * `abort-deconfigure' `in-favour' -# `removing' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - addgroup --system rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - adduser --system --ingroup rabbitmq --home /var/lib/rabbitmq \ - --no-create-home --gecos "RabbitMQ messaging server" \ - --disabled-login rabbitmq -fi - -chown -R rabbitmq:rabbitmq /var/lib/rabbitmq -chown -R rabbitmq:rabbitmq /var/log/rabbitmq - -case "$1" in - configure) - ;; - - abort-upgrade|abort-remove|abort-deconfigure) - ;; - - *) - echo "postinst called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/postrm.in b/packaging/debs/Debian/debian/postrm.in deleted file mode 100644 index c4aeeebe..00000000 --- a/packaging/debs/Debian/debian/postrm.in +++ /dev/null @@ -1,73 +0,0 @@ -#!/bin/sh -# postrm script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `remove' -# * `purge' -# * `upgrade' -# * `failed-upgrade' -# * `abort-install' -# * `abort-install' -# * `abort-upgrade' -# * `disappear' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - -remove_plugin_traces() { - # Remove traces of plugins - rm -rf /var/lib/rabbitmq/plugins-scratch -} - -case "$1" in - purge) - rm -f /etc/default/rabbitmq - if [ -d /var/lib/rabbitmq ]; then - rm -r /var/lib/rabbitmq - fi - if [ -d /var/log/rabbitmq ]; then - rm -r /var/log/rabbitmq - fi - if [ -d /var/run/rabbitmq ]; then - rm -r /var/run/rabbitmq - fi - if [ -d /etc/rabbitmq ]; then - rm -r /etc/rabbitmq - fi - remove_plugin_traces - if getent passwd rabbitmq >/dev/null; then - # Stop epmd if run by the rabbitmq user - pkill -u rabbitmq epmd || : - - deluser rabbitmq - fi - if getent group rabbitmq >/dev/null; then - delgroup rabbitmq - fi - ;; - - remove|upgrade) - remove_plugin_traces - ;; - - failed-upgrade|abort-install|abort-upgrade|disappear) - ;; - - *) - echo "postrm called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/rabbitmq-server.logrotate b/packaging/debs/Debian/debian/rabbitmq-server.logrotate deleted file mode 100644 index c786df77..00000000 --- a/packaging/debs/Debian/debian/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /etc/init.d/rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/debs/Debian/debian/rules b/packaging/debs/Debian/debian/rules deleted file mode 100644 index 6b6df33b..00000000 --- a/packaging/debs/Debian/debian/rules +++ /dev/null @@ -1,21 +0,0 @@ -#!/usr/bin/make -f - -include /usr/share/cdbs/1/rules/debhelper.mk -include /usr/share/cdbs/1/class/makefile.mk - -RABBIT_LIB=$(DEB_DESTDIR)usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)/ -RABBIT_BIN=$(DEB_DESTDIR)usr/lib/rabbitmq/bin/ - -DEB_MAKE_INSTALL_TARGET := install TARGET_DIR=$(RABBIT_LIB) SBIN_DIR=$(RABBIT_BIN) MAN_DIR=$(DEB_DESTDIR)usr/share/man/ -DEB_MAKE_CLEAN_TARGET:= distclean - -DOCDIR=$(DEB_DESTDIR)usr/share/doc/rabbitmq-server/ - -install/rabbitmq-server:: - mkdir -p $(DOCDIR) - rm $(RABBIT_LIB)LICENSE* $(RABBIT_LIB)INSTALL* - for script in rabbitmqctl rabbitmq-server rabbitmq-multi; do \ - install -p -D -m 0755 debian/rabbitmq-script-wrapper $(DEB_DESTDIR)usr/sbin/$$script; \ - done - sed -e 's|@RABBIT_LIB@|/usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)|g' debian/postrm - install -p -D -m 0755 debian/rabbitmq-server.ocf $(DEB_DESTDIR)usr/lib/ocf/resource.d/rabbitmq/rabbitmq-server diff --git a/packaging/debs/Debian/debian/watch b/packaging/debs/Debian/debian/watch deleted file mode 100644 index b41aff9a..00000000 --- a/packaging/debs/Debian/debian/watch +++ /dev/null @@ -1,4 +0,0 @@ -version=3 - -http://www.rabbitmq.com/releases/rabbitmq-server/v(.*)/rabbitmq-server-(\d.*)\.tar\.gz \ - debian uupdate diff --git a/packaging/debs/apt-repository/Makefile b/packaging/debs/apt-repository/Makefile deleted file mode 100644 index ce4347bc..00000000 --- a/packaging/debs/apt-repository/Makefile +++ /dev/null @@ -1,28 +0,0 @@ -SIGNING_USER_EMAIL=info@rabbitmq.com - -ifeq "$(UNOFFICIAL_RELEASE)" "" -HOME_ARG=HOME=$(GNUPG_PATH) -endif - -all: debian_apt_repository - -clean: - rm -rf debian - -CAN_HAS_REPREPRO=$(shell [ -f /usr/bin/reprepro ] && echo true) -ifeq ($(CAN_HAS_REPREPRO), true) -debian_apt_repository: clean - mkdir -p debian/conf - cp -a distributions debian/conf -ifeq "$(UNOFFICIAL_RELEASE)" "" - echo SignWith: $(SIGNING_USER_EMAIL) >> debian/conf/distributions -endif - for FILE in ../Debian/*.changes ; do \ - $(HOME_ARG) reprepro --ignore=wrongdistribution \ - -Vb debian include kitten $${FILE} ; \ - done - reprepro -Vb debian createsymlinks -else -debian_apt_repository: - @echo Not building APT repository as reprepro could not be found -endif diff --git a/packaging/debs/apt-repository/README b/packaging/debs/apt-repository/README deleted file mode 100644 index 514a37f3..00000000 --- a/packaging/debs/apt-repository/README +++ /dev/null @@ -1,17 +0,0 @@ -APT repository for RabbitMQ - -Previously we've attempted to run a repository in the same way that -Debian would: have repository management software installed on the -server, and upload new packages to the repository as and when they're -ready. - -This turned out to be both fiddly and annoying to do (and more -particularly to automate) so since our repository is always going to be -small it's easier just to create the entire repository as part of the -build process, just like a package. It can then be moved into place as a -single unit. The make target "debian_apt_repository" (invoked by "dist") -will create it, and it can get moved onto the server with the rest of -the packages. - -Read "README-real-repository" for information on how we used to do -this. diff --git a/packaging/debs/apt-repository/README-real-repository b/packaging/debs/apt-repository/README-real-repository deleted file mode 100644 index b1526227..00000000 --- a/packaging/debs/apt-repository/README-real-repository +++ /dev/null @@ -1,130 +0,0 @@ -APT Repository for RabbitMQ in Debian -===================================== - -First, a note on what we're trying to do. We want a single "testing" -repository. When RabbitMQ is more stable we will also want a -"stable" repository. It is very important to understand that these refer -to the state of the rabbit code, *NOT* which Debian distribution they go -with. At the moment our dependencies are very simple so our packages can -be used with any current Debian version (etch, lenny, sid) as well as -with Ubuntu. So although we have a "testing" distribution, this is not -codenamed "lenny". Instead it's currently codenamed "kitten" since -that's a baby rabbit. - -Secondly, a note on software. We need a tool to manage the repository, -and a tool to perform uploads to the repository. Debian being Debian -there are quite a few of each. We will use "rerepro" to manage the -repository since it's modern, maintained, and fairly simple. We will use -"dupload" to perform the uploads since it gives us the ability to run -arbitrary commands after the upload, which means we don't need to run a -cron job on the web server to process uploads. - -Creating a repository -===================== - -Much of this was cribbed from: -http://www.debian-administration.org/articles/286 - -The repository is fundamentally just some files in a folder, served over -HTTP (or FTP etc). So let's make it "debian" in the root of -www.rabbitmq.com. - -This means the repository will be at http://www.rabbitmq.com/debian/ and -can be added to a sources.list as: - -deb http://www.rabbitmq.com/debian/ testing main -deb-src http://www.rabbitmq.com/debian/ testing main - -Inside this folder we need a "conf" folder, and in -that we need a "distributions" configuration file - see the file in this -folder. Note that: - -* We list all architectures so that people can install rabbitmq-server - on to anything. -* We don't list the "all" architecture even though we use it; it's - implied. -* We only have a "main" component, we could have non-free and contrib - here if it was relevant. -* We list the email address associated with the key we want to use to - sign the repository. Yes, even after signing packages we still want to - sign the repository. - -We're now ready to go. Assuming the path to our repository is /path, -(and hence configuration is in /path/conf) we can upload a file to the -repository (creating it in the process) by doing something like this on -the repository host: - -$ reprepro --ignore=wrongdistribution -Vb /path include kitten \ - rabbitmq-server_1.0.0-alpha-1_i386.changes - -Note that we upload to the distribution "kitten" rather than "testing". -We also pass --ignore=wrongdistribution since the current packages are -built to go in "unstable" (this will be changed obviously). - -Note also that the .changes file claims to be for i386 even though the -package is for architecture "all". This is a bug in debhelper. - -Finally, if you've just created a repository, you want to run: - -$ reprepro -Vb /path createsymlinks - -since this will create "kitten" -> "testing" symlinks. You only need to -do this once. - -Removing packages -================= - -Fairly simple: - -$ reprepro --ignore=wrongdistribution -Vb /path remove kitten \ - rabbitmq-server - -Subsequent updates and "dupload" -================================ - -You can run the "reprepro" command above again to update the versions of -software in the repository. Since we probably don't want to have to log -into the machine in question to do this, we can use "dupload". This is a -tool which uploads Debian packages. The supplied file "dupload.conf" can -be renamed to ~/.dupload.conf. If you then run: - -$ dupload -to rabbit --nomail . - -in the folder with the .changes file, dupload will: - -* create an incoming folder in your home directory on the repository -machine -* upload everything there -* run reprepro to move the packages into the repository -* "rm -rf" the uploads folder - -This is a bit cheesy but should be enough for our purposes. The -dupload.conf uses scp and ssh so you need a public-key login (or tpye -your password lots). - -There's still an open question as to whether dupload is really needed -for our case. - -Keys and signing -================ - -We currently sign the package as we build it; but we also need to sign -the repository. The key is currently on my machine (mrforgetful) and has -ID 056E8E56. We should put it on CDs though. - -reprepro will automatically sign the repository if we have the right -SignWith line in the configuration, AND the secret key is installed on -the repository server. This is obviously not ideal; not sure what the -solution is right now. - -You can export the public key with: - -$ gpg --export --armor 056E8E56 > rabbit.pub - -(Open question: do we want to get our key on subkeys.pgp.net?) - -We can then add this key to the website and tell our users to import the -key into apt with: - -# apt-key add rabbit.pub - diff --git a/packaging/debs/apt-repository/distributions b/packaging/debs/apt-repository/distributions deleted file mode 100644 index 183eb034..00000000 --- a/packaging/debs/apt-repository/distributions +++ /dev/null @@ -1,7 +0,0 @@ -Origin: RabbitMQ -Label: RabbitMQ Repository for Debian / Ubuntu etc -Suite: testing -Codename: kitten -Architectures: arm hppa ia64 mips mipsel s390 sparc i386 amd64 powerpc source -Components: main -Description: RabbitMQ Repository for Debian / Ubuntu etc diff --git a/packaging/debs/apt-repository/dupload.conf b/packaging/debs/apt-repository/dupload.conf deleted file mode 100644 index 9ceed760..00000000 --- a/packaging/debs/apt-repository/dupload.conf +++ /dev/null @@ -1,16 +0,0 @@ -package config; - -$rabbit_user = "simon"; -$rabbit_host = "mrforgetful.lshift.net"; -$rabbit_repo_path = "/srv/debian"; -$rabbit_reprepro_extra_args = "--ignore=wrongdistribution"; - -$cfg{'rabbit'} = { - fqdn => "$rabbit_host", - login => "$rabbit_user", - method => "scp", - incoming => "incoming", -}; - -$preupload{'deb'} = "ssh ${rabbit_host} mkdir incoming"; -$postupload{'deb'} = "ssh ${rabbit_host} \"cd incoming && reprepro ${$rabbit_reprepro_extra_args} -Vb ${rabbit_repo_path} include kitten *.changes && cd .. && rm -r incoming\""; diff --git a/packaging/generic-unix/Makefile b/packaging/generic-unix/Makefile deleted file mode 100644 index c4e01f4a..00000000 --- a/packaging/generic-unix/Makefile +++ /dev/null @@ -1,23 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_TARBALL=rabbitmq-server-generic-unix-$(VERSION) - -dist: - tar -zxvf ../../dist/$(SOURCE_DIR).tar.gz - - $(MAKE) -C $(SOURCE_DIR) \ - TARGET_DIR=`pwd`/$(TARGET_DIR) \ - SBIN_DIR=`pwd`/$(TARGET_DIR)/sbin \ - MAN_DIR=`pwd`/$(TARGET_DIR)/share/man \ - install - - tar -zcf $(TARGET_TARBALL).tar.gz $(TARGET_DIR) - rm -rf $(SOURCE_DIR) $(TARGET_DIR) - -clean: clean_partial - rm -f rabbitmq-server-generic-unix-*.tar.gz - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile deleted file mode 100644 index 47da02dc..00000000 --- a/packaging/macports/Makefile +++ /dev/null @@ -1,59 +0,0 @@ -TARBALL_SRC_DIR=../../dist -TARBALL_BIN_DIR=../../packaging/generic-unix/ -TARBALL_SRC=$(wildcard $(TARBALL_SRC_DIR)/rabbitmq-server-[0-9.]*.tar.gz) -TARBALL_BIN=$(wildcard $(TARBALL_BIN_DIR)/rabbitmq-server-generic-unix-[0-9.]*.tar.gz) -COMMON_DIR=../common -VERSION=$(shell echo $(TARBALL_SRC) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -# The URL at which things really get deployed -REAL_WEB_URL=http://www.rabbitmq.com/ - -# The user@host for an OSX machine with macports installed, which is -# used to generate the macports index files. That step will be -# skipped if this variable is not set. If you do set it, you might -# also want to set SSH_OPTS, which allows adding ssh options, e.g. to -# specify a key that will get into the OSX machine without a -# passphrase. -MACPORTS_USERHOST= - -MACPORTS_DIR=macports -DEST=$(MACPORTS_DIR)/net/rabbitmq-server - -all: macports - -dirs: - mkdir -p $(DEST)/files - -$(DEST)/Portfile: Portfile.in - ./make-checksums.sh $(TARBALL_SRC) $(TARBALL_BIN) > checksums.sed - sed -e "s|@VERSION@|$(VERSION)|g;s|@BASE_URL@|$(REAL_WEB_URL)|g" \ - -f checksums.sed <$^ >$@ - rm checksums.sed - -# The purpose of the intricate substitution below is to set up similar -# environment vars to the ones that su will on Linux. On OS X, we -# have to use the -m option to su in order to be able to set the shell -# (which for the rabbitmq user would otherwise be /dev/null). But the -# -m option means that *all* environment vars get preserved. Erlang -# needs vars such as HOME to be set. So we have to set them -# explicitly. -macports: dirs $(DEST)/Portfile - cp $(COMMON_DIR)/rabbitmq-script-wrapper $(DEST)/files - sed -i -e 's|@SU_RABBITMQ_SH_C@|SHELL=/bin/sh HOME=/var/lib/rabbitmq USER=rabbitmq LOGNAME=rabbitmq PATH="$$(eval `PATH=MACPORTS_PREFIX/bin /usr/libexec/path_helper -s`; echo $$PATH)" su -m rabbitmq -c|' \ - $(DEST)/files/rabbitmq-script-wrapper - cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files - if [ -n "$(MACPORTS_USERHOST)" ] ; then \ - tar cf - -C $(MACPORTS_DIR) . | ssh $(SSH_OPTS) $(MACPORTS_USERHOST) ' \ - d="/tmp/mkportindex.$$$$" ; \ - mkdir $$d \ - && cd $$d \ - && tar xf - \ - && /opt/local/bin/portindex -a -o . >/dev/null \ - && tar cf - . \ - && cd \ - && rm -rf $$d' \ - | tar xf - -C $(MACPORTS_DIR) ; \ - fi - -clean: - rm -rf $(MACPORTS_DIR) checksums.sed diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in deleted file mode 100644 index f8417b83..00000000 --- a/packaging/macports/Portfile.in +++ /dev/null @@ -1,119 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version @VERSION@ -categories net -maintainers paperplanes.de:meyer rabbitmq.com:tonyg openmaintainer -platforms darwin -supported_archs noarch - -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage @BASE_URL@ -master_sites @BASE_URL@releases/rabbitmq-server/v${version}/ - -distfiles ${name}-${version}${extract.suffix} \ - ${name}-generic-unix-${version}${extract.suffix} - -checksums \ - ${name}-${version}${extract.suffix} md5 @md5-src@ \ - ${name}-${version}${extract.suffix} sha1 @sha1-src@ \ - ${name}-${version}${extract.suffix} rmd160 @rmd160-src@ \ - ${name}-generic-unix-${version}${extract.suffix} md5 @md5-bin@ \ - ${name}-generic-unix-${version}${extract.suffix} sha1 @sha1-bin@ \ - ${name}-generic-unix-${version}${extract.suffix} rmd160 @rmd160-bin@ - -depends_lib port:erlang -depends_build port:libxslt - -platform darwin 8 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -platform darwin 9 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -# no need for simplejson on Snow Leopard or higher - - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin -set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin -set mansrc ${workpath}/rabbitmq_server-${version}/share/man -set mandest ${destroot}${prefix}/share/man - -use_configure no - -use_parallel_build yes - -destroot.target install_bin - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq.conf):${prefix}\\1:g" \ - ${realsbin}/rabbitmq-env - foreach var {CONFIG_FILE LOG_BASE MNESIA_BASE PIDS_FILE} { - reinplace -E "s:^($var)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-multi \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - } - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-multi - - reinplace -E "s:MACPORTS_PREFIX/bin:${prefix}/bin:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-multi - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-multi - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-multi ${wrappersbin}/rabbitmqctl - - file copy ${mansrc}/man1/rabbitmq-multi.1.gz ${mandest}/man1/ - file copy ${mansrc}/man1/rabbitmq-server.1.gz ${mandest}/man1/ - file copy ${mansrc}/man1/rabbitmqctl.1.gz ${mandest}/man1/ - file copy ${mansrc}/man5/rabbitmq.conf.5.gz ${mandest}/man5/ -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/make-checksums.sh b/packaging/macports/make-checksums.sh deleted file mode 100755 index 11424dfc..00000000 --- a/packaging/macports/make-checksums.sh +++ /dev/null @@ -1,14 +0,0 @@ -#!/bin/bash -# NB: this script requires bash -tarball_src=$1 -tarball_bin=$2 -for type in src bin -do - tarball_var=tarball_${type} - tarball=${!tarball_var} - for algo in md5 sha1 rmd160 - do - checksum=$(openssl $algo ${tarball} | awk '{print $NF}') - echo "s|@$algo-$type@|$checksum|g" - done -done diff --git a/packaging/macports/make-port-diff.sh b/packaging/macports/make-port-diff.sh deleted file mode 100755 index 3eb1b9f5..00000000 --- a/packaging/macports/make-port-diff.sh +++ /dev/null @@ -1,27 +0,0 @@ -#!/bin/bash - -# This script grabs the latest rabbitmq-server bits from the main -# macports subversion repo, and from the rabbitmq.com macports repo, -# and produces a diff from the former to the latter for submission -# through the macports trac. - -set -e - -dir=/tmp/$(basename $0).$$ -mkdir -p $dir/macports $dir/rabbitmq - -# Get the files from the macports subversion repo -cd $dir/macports -svn checkout http://svn.macports.org/repository/macports/trunk/dports/net/rabbitmq-server/ 2>&1 >/dev/null - -# Clear out the svn $id tag -sed -i -e 's|^# \$.*$|# $Id$|' rabbitmq-server/Portfile - -# Get the files from the rabbitmq.com macports repo -cd ../rabbitmq -curl -s http://www.rabbitmq.com/releases/macports/net/rabbitmq-server.tgz | tar xzf - - -cd .. -diff -Naur --exclude=.svn macports rabbitmq -cd / -rm -rf $dir diff --git a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff deleted file mode 100644 index 45b49496..00000000 --- a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff +++ /dev/null @@ -1,10 +0,0 @@ ---- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 -+++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 -@@ -22,6 +22,7 @@ - ; - --pid=none - -+UserNamerabbitmq - Debug - Disabled - OnDemand diff --git a/packaging/windows-exe/Makefile b/packaging/windows-exe/Makefile deleted file mode 100644 index 59803f9c..00000000 --- a/packaging/windows-exe/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -VERSION=0.0.0 -ZIP=../windows/rabbitmq-server-windows-$(VERSION) - -dist: rabbitmq-$(VERSION).nsi rabbitmq_server-$(VERSION) - makensis rabbitmq-$(VERSION).nsi - -rabbitmq-$(VERSION).nsi: rabbitmq_nsi.in - sed \ - -e 's|%%VERSION%%|$(VERSION)|' \ - $< > $@ - -rabbitmq_server-$(VERSION): - unzip $(ZIP) - -clean: - rm -rf rabbitmq-*.nsi rabbitmq_server-* rabbitmq-server-*.exe diff --git a/packaging/windows-exe/lib/EnvVarUpdate.nsh b/packaging/windows-exe/lib/EnvVarUpdate.nsh deleted file mode 100644 index 839d6a02..00000000 --- a/packaging/windows-exe/lib/EnvVarUpdate.nsh +++ /dev/null @@ -1,327 +0,0 @@ -/** - * EnvVarUpdate.nsh - * : Environmental Variables: append, prepend, and remove entries - * - * WARNING: If you use StrFunc.nsh header then include it before this file - * with all required definitions. This is to avoid conflicts - * - * Usage: - * ${EnvVarUpdate} "ResultVar" "EnvVarName" "Action" "RegLoc" "PathString" - * - * Credits: - * Version 1.0 - * * Cal Turney (turnec2) - * * Amir Szekely (KiCHiK) and e-circ for developing the forerunners of this - * function: AddToPath, un.RemoveFromPath, AddToEnvVar, un.RemoveFromEnvVar, - * WriteEnvStr, and un.DeleteEnvStr - * * Diego Pedroso (deguix) for StrTok - * * Kevin English (kenglish_hi) for StrContains - * * Hendri Adriaens (Smile2Me), Diego Pedroso (deguix), and Dan Fuhry - * (dandaman32) for StrReplace - * - * Version 1.1 (compatibility with StrFunc.nsh) - * * techtonik - * - * http://nsis.sourceforge.net/Environmental_Variables:_append%2C_prepend%2C_and_remove_entries - * - */ - - -!ifndef ENVVARUPDATE_FUNCTION -!define ENVVARUPDATE_FUNCTION -!verbose push -!verbose 3 -!include "LogicLib.nsh" -!include "WinMessages.NSH" -!include "StrFunc.nsh" - -; ---- Fix for conflict if StrFunc.nsh is already includes in main file ----------------------- -!macro _IncludeStrFunction StrFuncName - !ifndef ${StrFuncName}_INCLUDED - ${${StrFuncName}} - !endif - !ifndef Un${StrFuncName}_INCLUDED - ${Un${StrFuncName}} - !endif - !define un.${StrFuncName} "${Un${StrFuncName}}" -!macroend - -!insertmacro _IncludeStrFunction StrTok -!insertmacro _IncludeStrFunction StrStr -!insertmacro _IncludeStrFunction StrRep - -; ---------------------------------- Macro Definitions ---------------------------------------- -!macro _EnvVarUpdateConstructor ResultVar EnvVarName Action Regloc PathString - Push "${EnvVarName}" - Push "${Action}" - Push "${RegLoc}" - Push "${PathString}" - Call EnvVarUpdate - Pop "${ResultVar}" -!macroend -!define EnvVarUpdate '!insertmacro "_EnvVarUpdateConstructor"' - -!macro _unEnvVarUpdateConstructor ResultVar EnvVarName Action Regloc PathString - Push "${EnvVarName}" - Push "${Action}" - Push "${RegLoc}" - Push "${PathString}" - Call un.EnvVarUpdate - Pop "${ResultVar}" -!macroend -!define un.EnvVarUpdate '!insertmacro "_unEnvVarUpdateConstructor"' -; ---------------------------------- Macro Definitions end------------------------------------- - -;----------------------------------- EnvVarUpdate start---------------------------------------- -!define hklm_all_users 'HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"' -!define hkcu_current_user 'HKCU "Environment"' - -!macro EnvVarUpdate UN - -Function ${UN}EnvVarUpdate - - Push $0 - Exch 4 - Exch $1 - Exch 3 - Exch $2 - Exch 2 - Exch $3 - Exch - Exch $4 - Push $5 - Push $6 - Push $7 - Push $8 - Push $9 - Push $R0 - - /* After this point: - ------------------------- - $0 = ResultVar (returned) - $1 = EnvVarName (input) - $2 = Action (input) - $3 = RegLoc (input) - $4 = PathString (input) - $5 = Orig EnvVar (read from registry) - $6 = Len of $0 (temp) - $7 = tempstr1 (temp) - $8 = Entry counter (temp) - $9 = tempstr2 (temp) - $R0 = tempChar (temp) */ - - ; Step 1: Read contents of EnvVarName from RegLoc - ; - ; Check for empty EnvVarName - ${If} $1 == "" - SetErrors - DetailPrint "ERROR: EnvVarName is blank" - Goto EnvVarUpdate_Restore_Vars - ${EndIf} - - ; Check for valid Action - ${If} $2 != "A" - ${AndIf} $2 != "P" - ${AndIf} $2 != "R" - SetErrors - DetailPrint "ERROR: Invalid Action - must be A, P, or R" - Goto EnvVarUpdate_Restore_Vars - ${EndIf} - - ${If} $3 == HKLM - ReadRegStr $5 ${hklm_all_users} $1 ; Get EnvVarName from all users into $5 - ${ElseIf} $3 == HKCU - ReadRegStr $5 ${hkcu_current_user} $1 ; Read EnvVarName from current user into $5 - ${Else} - SetErrors - DetailPrint 'ERROR: Action is [$3] but must be "HKLM" or HKCU"' - Goto EnvVarUpdate_Restore_Vars - ${EndIf} - - ; Check for empty PathString - ${If} $4 == "" - SetErrors - DetailPrint "ERROR: PathString is blank" - Goto EnvVarUpdate_Restore_Vars - ${EndIf} - - ; Make sure we've got some work to do - ${If} $5 == "" - ${AndIf} $2 == "R" - SetErrors - DetailPrint "$1 is empty - Nothing to remove" - Goto EnvVarUpdate_Restore_Vars - ${EndIf} - - ; Step 2: Scrub EnvVar - ; - StrCpy $0 $5 ; Copy the contents to $0 - ; Remove spaces around semicolons (NOTE: spaces before the 1st entry or - ; after the last one are not removed here but instead in Step 3) - ${If} $0 != "" ; If EnvVar is not empty ... - ${Do} - ${${UN}StrStr} $7 $0 " ;" - ${If} $7 == "" - ${ExitDo} - ${EndIf} - ${${UN}StrRep} $0 $0 " ;" ";" ; Remove ';' - ${Loop} - ${Do} - ${${UN}StrStr} $7 $0 "; " - ${If} $7 == "" - ${ExitDo} - ${EndIf} - ${${UN}StrRep} $0 $0 "; " ";" ; Remove ';' - ${Loop} - ${Do} - ${${UN}StrStr} $7 $0 ";;" - ${If} $7 == "" - ${ExitDo} - ${EndIf} - ${${UN}StrRep} $0 $0 ";;" ";" - ${Loop} - - ; Remove a leading or trailing semicolon from EnvVar - StrCpy $7 $0 1 0 - ${If} $7 == ";" - StrCpy $0 $0 "" 1 ; Change ';' to '' - ${EndIf} - StrLen $6 $0 - IntOp $6 $6 - 1 - StrCpy $7 $0 1 $6 - ${If} $7 == ";" - StrCpy $0 $0 $6 ; Change ';' to '' - ${EndIf} - ; DetailPrint "Scrubbed $1: [$0]" ; Uncomment to debug - ${EndIf} - - /* Step 3. Remove all instances of the target path/string (even if "A" or "P") - $6 = bool flag (1 = found and removed PathString) - $7 = a string (e.g. path) delimited by semicolon(s) - $8 = entry counter starting at 0 - $9 = copy of $0 - $R0 = tempChar */ - - ${If} $5 != "" ; If EnvVar is not empty ... - StrCpy $9 $0 - StrCpy $0 "" - StrCpy $8 0 - StrCpy $6 0 - - ${Do} - ${${UN}StrTok} $7 $9 ";" $8 "0" ; $7 = next entry, $8 = entry counter - - ${If} $7 == "" ; If we've run out of entries, - ${ExitDo} ; were done - ${EndIf} ; - - ; Remove leading and trailing spaces from this entry (critical step for Action=Remove) - ${Do} - StrCpy $R0 $7 1 - ${If} $R0 != " " - ${ExitDo} - ${EndIf} - StrCpy $7 $7 "" 1 ; Remove leading space - ${Loop} - ${Do} - StrCpy $R0 $7 1 -1 - ${If} $R0 != " " - ${ExitDo} - ${EndIf} - StrCpy $7 $7 -1 ; Remove trailing space - ${Loop} - ${If} $7 == $4 ; If string matches, remove it by not appending it - StrCpy $6 1 ; Set 'found' flag - ${ElseIf} $7 != $4 ; If string does NOT match - ${AndIf} $0 == "" ; and the 1st string being added to $0, - StrCpy $0 $7 ; copy it to $0 without a prepended semicolon - ${ElseIf} $7 != $4 ; If string does NOT match - ${AndIf} $0 != "" ; and this is NOT the 1st string to be added to $0, - StrCpy $0 $0;$7 ; append path to $0 with a prepended semicolon - ${EndIf} ; - - IntOp $8 $8 + 1 ; Bump counter - ${Loop} ; Check for duplicates until we run out of paths - ${EndIf} - - ; Step 4: Perform the requested Action - ; - ${If} $2 != "R" ; If Append or Prepend - ${If} $6 == 1 ; And if we found the target - DetailPrint "Target is already present in $1. It will be removed and" - ${EndIf} - ${If} $0 == "" ; If EnvVar is (now) empty - StrCpy $0 $4 ; just copy PathString to EnvVar - ${If} $6 == 0 ; If found flag is either 0 - ${OrIf} $6 == "" ; or blank (if EnvVarName is empty) - DetailPrint "$1 was empty and has been updated with the target" - ${EndIf} - ${ElseIf} $2 == "A" ; If Append (and EnvVar is not empty), - StrCpy $0 $0;$4 ; append PathString - ${If} $6 == 1 - DetailPrint "appended to $1" - ${Else} - DetailPrint "Target was appended to $1" - ${EndIf} - ${Else} ; If Prepend (and EnvVar is not empty), - StrCpy $0 $4;$0 ; prepend PathString - ${If} $6 == 1 - DetailPrint "prepended to $1" - ${Else} - DetailPrint "Target was prepended to $1" - ${EndIf} - ${EndIf} - ${Else} ; If Action = Remove - ${If} $6 == 1 ; and we found the target - DetailPrint "Target was found and removed from $1" - ${Else} - DetailPrint "Target was NOT found in $1 (nothing to remove)" - ${EndIf} - ${If} $0 == "" - DetailPrint "$1 is now empty" - ${EndIf} - ${EndIf} - - ; Step 5: Update the registry at RegLoc with the updated EnvVar and announce the change - ; - ClearErrors - ${If} $3 == HKLM - WriteRegExpandStr ${hklm_all_users} $1 $0 ; Write it in all users section - ${ElseIf} $3 == HKCU - WriteRegExpandStr ${hkcu_current_user} $1 $0 ; Write it to current user section - ${EndIf} - - IfErrors 0 +4 - MessageBox MB_OK|MB_ICONEXCLAMATION "Could not write updated $1 to $3" - DetailPrint "Could not write updated $1 to $3" - Goto EnvVarUpdate_Restore_Vars - - ; "Export" our change - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - - EnvVarUpdate_Restore_Vars: - ; - ; Restore the user's variables and return ResultVar - Pop $R0 - Pop $9 - Pop $8 - Pop $7 - Pop $6 - Pop $5 - Pop $4 - Pop $3 - Pop $2 - Pop $1 - Push $0 ; Push my $0 (ResultVar) - Exch - Pop $0 ; Restore his $0 - -FunctionEnd - -!macroend ; EnvVarUpdate UN -!insertmacro EnvVarUpdate "" -!insertmacro EnvVarUpdate "un." -;----------------------------------- EnvVarUpdate end---------------------------------------- - -!verbose pop -!endif diff --git a/packaging/windows-exe/rabbitmq.ico b/packaging/windows-exe/rabbitmq.ico deleted file mode 100644 index 5e169a79..00000000 Binary files a/packaging/windows-exe/rabbitmq.ico and /dev/null differ diff --git a/packaging/windows-exe/rabbitmq_nsi.in b/packaging/windows-exe/rabbitmq_nsi.in deleted file mode 100644 index 6d79ffd4..00000000 --- a/packaging/windows-exe/rabbitmq_nsi.in +++ /dev/null @@ -1,241 +0,0 @@ -; Use the "Modern" UI -!include MUI2.nsh -!include LogicLib.nsh -!include WinMessages.nsh -!include FileFunc.nsh -!include WordFunc.nsh -!include lib\EnvVarUpdate.nsh - -!define env_hklm 'HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"' -!define uninstall "Software\Microsoft\Windows\CurrentVersion\Uninstall\RabbitMQ" - -;-------------------------------- - -; The name of the installer -Name "RabbitMQ Server %%VERSION%%" - -; The file to write -OutFile "rabbitmq-server-%%VERSION%%.exe" - -; Icons -!define MUI_ICON "rabbitmq.ico" - -; The default installation directory -InstallDir "$PROGRAMFILES\RabbitMQ Server" - -; Registry key to check for directory (so if you install again, it will -; overwrite the old one automatically) -InstallDirRegKey HKLM "Software\VMware, Inc.\RabbitMQ Server" "Install_Dir" - -; Request application privileges for Windows Vista -RequestExecutionLevel admin - -SetCompressor /solid lzma - -VIProductVersion "%%VERSION%%.0" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductVersion" "%%VERSION%%" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductName" "RabbitMQ Server" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "Comments" "" -VIAddVersionKey /LANG=${LANG_ENGLISH} "CompanyName" "VMware, Inc" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalTrademarks" "" ; TODO ? -VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalCopyright" "Copyright (c) 2007-2011 VMware, Inc. All rights reserved." -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileDescription" "RabbitMQ Server" -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileVersion" "%%VERSION%%" - -;-------------------------------- - -; Pages - - -; !insertmacro MUI_PAGE_LICENSE "..\..\LICENSE-MPL-RabbitMQ" - !insertmacro MUI_PAGE_COMPONENTS - !insertmacro MUI_PAGE_DIRECTORY - !insertmacro MUI_PAGE_INSTFILES - !insertmacro MUI_PAGE_FINISH - - !insertmacro MUI_UNPAGE_CONFIRM - !insertmacro MUI_UNPAGE_INSTFILES - !define MUI_FINISHPAGE_TEXT "RabbitMQ Server %%VERSION%% has been uninstalled from your computer.$\n$\nPlease note that the log and database directories located at $APPDATA\RabbitMQ have not been removed. You can remove them manually if desired." - !insertmacro MUI_UNPAGE_FINISH - -;-------------------------------- -;Languages - - !insertmacro MUI_LANGUAGE "English" - -;-------------------------------- - -; The stuff to install -Section "RabbitMQ Server (required)" Rabbit - - SectionIn RO - - ; Set output path to the installation directory. - SetOutPath $INSTDIR - - ; Put files there - File /r "rabbitmq_server-%%VERSION%%" - File "rabbitmq.ico" - - ; Add to PATH - ${EnvVarUpdate} $0 "PATH" "A" "HKLM" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin" - - ; Write the installation path into the registry - WriteRegStr HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" "Install_Dir" "$INSTDIR" - - ; Write the uninstall keys for Windows - WriteRegStr HKLM ${uninstall} "DisplayName" "RabbitMQ Server" - WriteRegStr HKLM ${uninstall} "UninstallString" "$INSTDIR\uninstall.exe" - WriteRegStr HKLM ${uninstall} "DisplayIcon" "$INSTDIR\uninstall.exe,0" - WriteRegStr HKLM ${uninstall} "Publisher" "VMware, Inc." - WriteRegStr HKLM ${uninstall} "DisplayVersion" "%%VERSION%%" - WriteRegDWORD HKLM ${uninstall} "NoModify" 1 - WriteRegDWORD HKLM ${uninstall} "NoRepair" 1 - - ${GetSize} "$INSTDIR" "/S=0K" $0 $1 $2 - IntFmt $0 "0x%08X" $0 - WriteRegDWORD HKLM "${uninstall}" "EstimatedSize" "$0" - - WriteUninstaller "uninstall.exe" -SectionEnd - -;-------------------------------- - -Section "RabbitMQ Service" RabbitService - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" install' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" start' - CopyFiles "$WINDIR\.erlang.cookie" "$PROFILE\.erlang.cookie" -SectionEnd - -;-------------------------------- - -Section "Start Menu" RabbitStartMenu - ; In case the service is not installed, or the service installation fails, - ; make sure these exist or Explorer will get confused. - CreateDirectory "$APPDATA\RabbitMQ\log" - CreateDirectory "$APPDATA\RabbitMQ\db" - - CreateDirectory "$SMPROGRAMS\RabbitMQ Server" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Uninstall.lnk" "$INSTDIR\uninstall.exe" "" "$INSTDIR\uninstall.exe" 0 - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Plugins Directory.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\plugins" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Log Directory.lnk" "$APPDATA\RabbitMQ\log" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Database Directory.lnk" "$APPDATA\RabbitMQ\db" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\(Re)Install Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "install" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Remove Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "remove" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Start Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "start" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Stop Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "stop" "$INSTDIR\rabbitmq.ico" - -SectionEnd - -;-------------------------------- - -; Section descriptions - -LangString DESC_Rabbit ${LANG_ENGLISH} "The RabbitMQ Server." -LangString DESC_RabbitService ${LANG_ENGLISH} "Set up RabbitMQ as a Windows Service." -LangString DESC_RabbitStartMenu ${LANG_ENGLISH} "Add some useful links to the start menu." - -!insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN - !insertmacro MUI_DESCRIPTION_TEXT ${Rabbit} $(DESC_Rabbit) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitService} $(DESC_RabbitService) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitStartMenu} $(DESC_RabbitStartMenu) -!insertmacro MUI_FUNCTION_DESCRIPTION_END - -;-------------------------------- - -; Uninstaller - -Section "Uninstall" - - ; Remove registry keys - DeleteRegKey HKLM ${uninstall} - DeleteRegKey HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" - - ; TODO these will fail if the service is not installed - do we care? - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" stop' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" remove' - - ; Remove from PATH - ${un.EnvVarUpdate} $0 "PATH" "R" "HKLM" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin" - - ; Remove files and uninstaller - RMDir /r "$INSTDIR\rabbitmq_server-%%VERSION%%" - Delete "$INSTDIR\rabbitmq.ico" - Delete "$INSTDIR\uninstall.exe" - - ; Remove start menu items - RMDir /r "$SMPROGRAMS\RabbitMQ Server" - - DeleteRegValue ${env_hklm} ERLANG_HOME - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - -SectionEnd - -;-------------------------------- - -; Functions - -Function .onInit - Call findErlang - - ReadRegStr $0 HKLM ${uninstall} "UninstallString" - ${If} $0 != "" - MessageBox MB_OKCANCEL|MB_ICONEXCLAMATION "RabbitMQ is already installed. $\n$\nClick 'OK' to remove the previous version or 'Cancel' to cancel this installation." IDCANCEL norun - - ;Run the uninstaller - ClearErrors - ExecWait $INSTDIR\uninstall.exe - - norun: - Abort - ${EndIf} -FunctionEnd - -Function findErlang - - StrCpy $0 0 - StrCpy $2 "not-found" - ${Do} - EnumRegKey $1 HKLM Software\Ericsson\Erlang $0 - ${If} $1 = "" - ${Break} - ${EndIf} - ${If} $1 <> "ErlSrv" - StrCpy $2 $1 - ${EndIf} - - IntOp $0 $0 + 1 - ${Loop} - - ${If} $2 = "not-found" - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Erlang could not be detected.$\nYou must install Erlang before installing RabbitMQ. Would you like the installer to open a browser window to the Erlang download site?" IDNO abort - ExecShell "open" "http://www.erlang.org/download.html" - abort: - Abort - ${Else} - ${VersionCompare} $2 "5.6.3" $0 - ${VersionCompare} $2 "5.8.1" $1 - - ${If} $0 = 2 - MessageBox MB_OK|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is too old. Please install a more recent version." - Abort - ${ElseIf} $1 = 2 - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is comparatively old.$\nFor best results, please install a newer version.$\nDo you wish to continue?" IDYES no_abort - Abort - no_abort: - ${EndIf} - - ReadRegStr $0 HKLM "Software\Ericsson\Erlang\$2" "" - - ; See http://nsis.sourceforge.net/Setting_Environment_Variables - WriteRegExpandStr ${env_hklm} ERLANG_HOME $0 - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - - ; On Windows XP changing the permanent environment does not change *our* - ; environment, so do that as well. - System::Call 'Kernel32::SetEnvironmentVariableA(t, t) i("ERLANG_HOME", "$0").r0' - ${EndIf} - -FunctionEnd \ No newline at end of file diff --git a/packaging/windows/Makefile b/packaging/windows/Makefile deleted file mode 100644 index abe174e0..00000000 --- a/packaging/windows/Makefile +++ /dev/null @@ -1,36 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_ZIP=rabbitmq-server-windows-$(VERSION) - -dist: - tar -zxvf ../../dist/$(SOURCE_DIR).tar.gz - $(MAKE) -C $(SOURCE_DIR) - - mkdir $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-server.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-service.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmqctl.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-multi.bat $(SOURCE_DIR)/sbin - rm -rf $(SOURCE_DIR)/scripts - rm -rf $(SOURCE_DIR)/codegen* $(SOURCE_DIR)/Makefile - rm -f $(SOURCE_DIR)/README - rm -rf $(SOURCE_DIR)/docs - - mv $(SOURCE_DIR) $(TARGET_DIR) - mkdir -p $(TARGET_DIR) - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory > $(TARGET_DIR)/plugins/README - xmlto -o . xhtml-nochunks ../../docs/rabbitmq-service.xml - elinks -dump -no-references -no-numbering rabbitmq-service.html \ - > $(TARGET_DIR)/readme-service.txt - todos $(TARGET_DIR)/readme-service.txt - zip -r $(TARGET_ZIP).zip $(TARGET_DIR) - rm -rf $(TARGET_DIR) rabbitmq-service.html - -clean: clean_partial - rm -f rabbitmq-server-windows-*.zip - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/scripts/rabbitmq-env b/scripts/rabbitmq-env deleted file mode 100755 index df4b24d8..00000000 --- a/scripts/rabbitmq-env +++ /dev/null @@ -1,40 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Determine where this script is really located -SCRIPT_PATH="$0" -while [ -h "$SCRIPT_PATH" ] ; do - FULL_PATH=`readlink -f $SCRIPT_PATH 2>/dev/null` - if [ "$?" != "0" ]; then - REL_PATH=`readlink $SCRIPT_PATH` - if expr "$REL_PATH" : '/.*' > /dev/null; then - SCRIPT_PATH="$REL_PATH" - else - SCRIPT_PATH="`dirname "$SCRIPT_PATH"`/$REL_PATH" - fi - else - SCRIPT_PATH=$FULL_PATH - fi -done - -SCRIPT_DIR=`dirname $SCRIPT_PATH` -RABBITMQ_HOME="${SCRIPT_DIR}/.." -[ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname` -NODENAME=rabbit@${HOSTNAME%%.*} - -# Load configuration from the rabbitmq.conf file -[ -f /etc/rabbitmq/rabbitmq.conf ] && . /etc/rabbitmq/rabbitmq.conf diff --git a/scripts/rabbitmq-multi b/scripts/rabbitmq-multi deleted file mode 100755 index ebcf4b63..00000000 --- a/scripts/rabbitmq-multi +++ /dev/null @@ -1,72 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -SCRIPT_HOME=$(dirname $0) -PIDS_FILE=/var/lib/rabbitmq/pids -MULTI_ERL_ARGS= -MULTI_START_ARGS= -CONFIG_FILE=/etc/rabbitmq/rabbitmq - -. `dirname $0`/rabbitmq-env - -DEFAULT_NODE_IP_ADDRESS=0.0.0.0 -DEFAULT_NODE_PORT=5672 -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} -[ "x" = "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} -if [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] -then - if [ "x" != "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_IP_ADDRESS=${DEFAULT_NODE_IP_ADDRESS} - fi -else - if [ "x" = "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_PORT=${DEFAULT_NODE_PORT} - fi -fi -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_SCRIPT_HOME" ] && RABBITMQ_SCRIPT_HOME=${SCRIPT_HOME} -[ "x" = "x$RABBITMQ_PIDS_FILE" ] && RABBITMQ_PIDS_FILE=${PIDS_FILE} -[ "x" = "x$RABBITMQ_MULTI_ERL_ARGS" ] && RABBITMQ_MULTI_ERL_ARGS=${MULTI_ERL_ARGS} -[ "x" = "x$RABBITMQ_MULTI_START_ARGS" ] && RABBITMQ_MULTI_START_ARGS=${MULTI_START_ARGS} -[ "x" = "x$RABBITMQ_CONFIG_FILE" ] && RABBITMQ_CONFIG_FILE=${CONFIG_FILE} - -export \ - RABBITMQ_NODENAME \ - RABBITMQ_NODE_IP_ADDRESS \ - RABBITMQ_NODE_PORT \ - RABBITMQ_SCRIPT_HOME \ - RABBITMQ_PIDS_FILE \ - RABBITMQ_CONFIG_FILE - -RABBITMQ_CONFIG_ARG= -[ -f "${RABBITMQ_CONFIG_FILE}.config" ] && RABBITMQ_CONFIG_ARG="-config ${RABBITMQ_CONFIG_FILE}" - -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_MULTI_ERL_ARGS, may contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - -exec erl \ - -pa "${RABBITMQ_HOME}/ebin" \ - -noinput \ - -hidden \ - ${RABBITMQ_MULTI_ERL_ARGS} \ - -sname rabbitmq_multi$$ \ - ${RABBITMQ_CONFIG_ARG} \ - -s rabbit_multi \ - ${RABBITMQ_MULTI_START_ARGS} \ - -extra "$@" diff --git a/scripts/rabbitmq-multi.bat b/scripts/rabbitmq-multi.bat deleted file mode 100644 index a2d10f2e..00000000 --- a/scripts/rabbitmq-multi.bat +++ /dev/null @@ -1,84 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\RabbitMQ -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=0.0.0.0 - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -set RABBITMQ_PIDS_FILE=!RABBITMQ_BASE!\rabbitmq.pids -set RABBITMQ_SCRIPT_HOME=!TDP0! - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!TDP0!..\ebin" ^ --noinput -hidden ^ -!RABBITMQ_MULTI_ERL_ARGS! ^ --sname rabbitmq_multi!RANDOM! ^ -!RABBITMQ_CONFIG_ARG! ^ --s rabbit_multi ^ -!RABBITMQ_MULTI_START_ARGS! ^ --extra !STAR! - -endlocal -endlocal diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server deleted file mode 100755 index 5c390a51..00000000 --- a/scripts/rabbitmq-server +++ /dev/null @@ -1,118 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -SERVER_ERL_ARGS="+K true +A30 +P 1048576 \ --kernel inet_default_listen_options [{nodelay,true}] \ --kernel inet_default_connect_options [{nodelay,true}]" -CONFIG_FILE=/etc/rabbitmq/rabbitmq -LOG_BASE=/var/log/rabbitmq -MNESIA_BASE=/var/lib/rabbitmq/mnesia -SERVER_START_ARGS= - -. `dirname $0`/rabbitmq-env - -DEFAULT_NODE_IP_ADDRESS=auto -DEFAULT_NODE_PORT=5672 -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} -[ "x" = "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} -if [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] -then - if [ "x" != "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_IP_ADDRESS=${DEFAULT_NODE_IP_ADDRESS} - fi -else - if [ "x" = "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_PORT=${DEFAULT_NODE_PORT} - fi -fi -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_SERVER_ERL_ARGS" ] && RABBITMQ_SERVER_ERL_ARGS=${SERVER_ERL_ARGS} -[ "x" = "x$RABBITMQ_CONFIG_FILE" ] && RABBITMQ_CONFIG_FILE=${CONFIG_FILE} -[ "x" = "x$RABBITMQ_LOG_BASE" ] && RABBITMQ_LOG_BASE=${LOG_BASE} -[ "x" = "x$RABBITMQ_MNESIA_BASE" ] && RABBITMQ_MNESIA_BASE=${MNESIA_BASE} -[ "x" = "x$RABBITMQ_SERVER_START_ARGS" ] && RABBITMQ_SERVER_START_ARGS=${SERVER_START_ARGS} - -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${MNESIA_DIR} -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME} - -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${PLUGINS_EXPAND_DIR} -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME}-plugins-expand - -[ "x" = "x$RABBITMQ_PLUGINS_DIR" ] && RABBITMQ_PLUGINS_DIR="${RABBITMQ_HOME}/plugins" - -## Log rotation -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS=${LOGS} -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}.log" -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS=${SASL_LOGS} -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}-sasl.log" -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=${BACKUP_EXTENSION} -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=".1" - -[ -f "${RABBITMQ_LOGS}" ] && cat "${RABBITMQ_LOGS}" >> "${RABBITMQ_LOGS}${RABBITMQ_BACKUP_EXTENSION}" -[ -f "${RABBITMQ_SASL_LOGS}" ] && cat "${RABBITMQ_SASL_LOGS}" >> "${RABBITMQ_SASL_LOGS}${RABBITMQ_BACKUP_EXTENSION}" - -RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' - -RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" -if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then - if erl \ - -pa "$RABBITMQ_EBIN_ROOT" \ - -noinput \ - -hidden \ - -s rabbit_prelaunch \ - -sname rabbitmqprelaunch$$ \ - -extra "$RABBITMQ_PLUGINS_DIR" "${RABBITMQ_PLUGINS_EXPAND_DIR}" "${RABBITMQ_NODENAME}" - then - RABBITMQ_BOOT_FILE="${RABBITMQ_PLUGINS_EXPAND_DIR}/rabbit" - RABBITMQ_EBIN_PATH="" - else - exit 1 - fi -else - RABBITMQ_BOOT_FILE=start_sasl - RABBITMQ_EBIN_PATH="-pa ${RABBITMQ_EBIN_ROOT}" -fi -RABBITMQ_CONFIG_ARG= -[ -f "${RABBITMQ_CONFIG_FILE}.config" ] && RABBITMQ_CONFIG_ARG="-config ${RABBITMQ_CONFIG_FILE}" - -RABBITMQ_LISTEN_ARG= -[ "x" != "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$RABBITMQ_NODE_IP_ADDRESS" ] && RABBITMQ_LISTEN_ARG="-rabbit tcp_listeners [{\""${RABBITMQ_NODE_IP_ADDRESS}"\","${RABBITMQ_NODE_PORT}"}]" - -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_SERVER_ERL_ARGS, contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - -exec erl \ - ${RABBITMQ_EBIN_PATH} \ - ${RABBITMQ_START_RABBIT} \ - -sname ${RABBITMQ_NODENAME} \ - -boot ${RABBITMQ_BOOT_FILE} \ - ${RABBITMQ_CONFIG_ARG} \ - +W w \ - ${RABBITMQ_SERVER_ERL_ARGS} \ - ${RABBITMQ_LISTEN_ARG} \ - -sasl errlog_type error \ - -kernel error_logger '{file,"'${RABBITMQ_LOGS}'"}' \ - -sasl sasl_error_logger '{file,"'${RABBITMQ_SASL_LOGS}'"}' \ - -os_mon start_cpu_sup true \ - -os_mon start_disksup false \ - -os_mon start_memsup false \ - -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - ${RABBITMQ_SERVER_START_ARGS} \ - "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat deleted file mode 100644 index 0cfa5ea8..00000000 --- a/scripts/rabbitmq-server.bat +++ /dev/null @@ -1,160 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\RabbitMQ -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based of size...) is left as an exercice for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!-sasl.log - -set LOGS_BACKUP=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!.log!BACKUP_EXTENSION! -set SASL_LOGS_BACKUP=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!-sasl.log!BACKUP_EXTENSION! - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS_BACKUP!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS_BACKUP!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --sname rabbitmqprelaunch!RANDOM! ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "!RABBITMQ_NODENAME!" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners [{\""!RABBITMQ_NODE_IP_ADDRESS!"\","!RABBITMQ_NODE_PORT!"}] - ) -) - -"!ERLANG_HOME!\bin\erl.exe" ^ -!RABBITMQ_EBIN_PATH! ^ --noinput ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --sname !RABBITMQ_NODENAME! ^ --s rabbit ^ -+W w ^ -+A30 ^ -+P 1048576 ^ --kernel inet_default_listen_options "[{nodelay, true}]" ^ --kernel inet_default_connect_options "[{nodelay, true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!RABBITMQ_LOG_BASE!/!RABBITMQ_NODENAME!.log"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!RABBITMQ_LOG_BASE!/!RABBITMQ_NODENAME!-sasl.log"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -endlocal -endlocal diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat deleted file mode 100644 index 43520b55..00000000 --- a/scripts/rabbitmq-service.bat +++ /dev/null @@ -1,248 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TN0=%~n0 -set TDP0=%~dp0 -set P1=%1 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_SERVICENAME!"=="" ( - set RABBITMQ_SERVICENAME=RabbitMQ -) - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\!RABBITMQ_SERVICENAME! -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if "!ERLANG_SERVICE_MANAGER_PATH!"=="" ( - if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B - ) - for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\erlsrv.exe" ( - set ERLANG_SERVICE_MANAGER_PATH=!ERLANG_HOME!\%%i\bin - ) -) - -set CONSOLE_FLAG= -set CONSOLE_LOG_VALID= -for %%i in (new reuse) do if "%%i" == "!RABBITMQ_CONSOLE_LOG!" set CONSOLE_LOG_VALID=TRUE -if "!CONSOLE_LOG_VALID!" == "TRUE" ( - set CONSOLE_FLAG=-debugtype !RABBITMQ_CONSOLE_LOG! -) - -rem *** End of configuration *** - -if not exist "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" ( - echo. - echo ********************************************** - echo ERLANG_SERVICE_MANAGER_PATH not set correctly. - echo ********************************************** - echo. - echo "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" not found - echo Please set ERLANG_SERVICE_MANAGER_PATH to the folder containing "erlsrv.exe". - echo. - exit /B 1 -) - -rem erlang prefers forwardslash as separator in paths -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based on size...) is left as an exercise for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!-sasl.log - -set LOGS_BACKUP=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!.log!BACKUP_EXTENSION! -set SASL_LOGS_BACKUP=!RABBITMQ_BASE!\log\!RABBITMQ_NODENAME!-sasl.log!BACKUP_EXTENSION! - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS_BACKUP!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS_BACKUP!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -if "!P1!" == "install" goto INSTALL_SERVICE -for %%i in (start stop disable enable list remove) do if "%%i" == "!P1!" goto MODIFY_SERVICE - -echo. -echo ********************* -echo Service control usage -echo ********************* -echo. -echo !TN0! help - Display this help -echo !TN0! install - Install the !RABBITMQ_SERVICENAME! service -echo !TN0! remove - Remove the !RABBITMQ_SERVICENAME! service -echo. -echo The following actions can also be accomplished by using -echo Windows Services Management Console (services.msc): -echo. -echo !TN0! start - Start the !RABBITMQ_SERVICENAME! service -echo !TN0! stop - Stop the !RABBITMQ_SERVICENAME! service -echo !TN0! disable - Disable the !RABBITMQ_SERVICENAME! service -echo !TN0! enable - Enable the !RABBITMQ_SERVICENAME! service -echo. -exit /B - - -:INSTALL_SERVICE - -if not exist "!RABBITMQ_BASE!" ( - echo Creating base directory !RABBITMQ_BASE! & md "!RABBITMQ_BASE!" -) - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" list !RABBITMQ_SERVICENAME! 2>NUL 1>NUL -if errorlevel 1 ( - "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" add !RABBITMQ_SERVICENAME! -) else ( - echo !RABBITMQ_SERVICENAME! service is already present - only updating service parameters -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners "[{\"!RABBITMQ_NODE_IP_ADDRESS!\", !RABBITMQ_NODE_PORT!}]" - ) -) - -set ERLANG_SERVICE_ARGUMENTS= ^ -!RABBITMQ_EBIN_PATH! ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --s rabbit ^ -+W w ^ -+A30 ^ --kernel inet_default_listen_options "[{nodelay,true}]" ^ --kernel inet_default_connect_options "[{nodelay,true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!RABBITMQ_LOG_BASE!/!RABBITMQ_NODENAME!.log"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!RABBITMQ_LOG_BASE!/!RABBITMQ_NODENAME!-sasl.log"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:\=\\! -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:"=\"! - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" set !RABBITMQ_SERVICENAME! ^ --machine "!ERLANG_SERVICE_MANAGER_PATH!\erl.exe" ^ --env ERL_CRASH_DUMP="!RABBITMQ_BASE_UNIX!/erl_crash.dump" ^ --workdir "!RABBITMQ_BASE!" ^ --stopaction "rabbit:stop_and_halt()." ^ --sname !RABBITMQ_NODENAME! ^ -!CONSOLE_FLAG! ^ --args "!ERLANG_SERVICE_ARGUMENTS!" > NUL - -goto END - - -:MODIFY_SERVICE - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" !P1! !RABBITMQ_SERVICENAME! -goto END - - -:END - -endlocal -endlocal diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl deleted file mode 100755 index 9a11c3b3..00000000 --- a/scripts/rabbitmqctl +++ /dev/null @@ -1,31 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -. `dirname $0`/rabbitmq-env - -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} - -exec erl \ - -pa "${RABBITMQ_HOME}/ebin" \ - -noinput \ - -hidden \ - ${RABBITMQ_CTL_ERL_ARGS} \ - -sname rabbitmqctl$$ \ - -s rabbit_control \ - -nodename $RABBITMQ_NODENAME \ - -extra "$@" diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat deleted file mode 100644 index a74a91fd..00000000 --- a/scripts/rabbitmqctl.bat +++ /dev/null @@ -1,49 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! - -endlocal -endlocal diff --git a/src/bpqueue.erl b/src/bpqueue.erl deleted file mode 100644 index 71a34262..00000000 --- a/src/bpqueue.erl +++ /dev/null @@ -1,271 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(bpqueue). - -%% Block-prefixed queue. From the perspective of the queue interface -%% the datastructure acts like a regular queue where each value is -%% paired with the prefix. -%% -%% This is implemented as a queue of queues, which is more space and -%% time efficient, whilst supporting the normal queue interface. Each -%% inner queue has a prefix, which does not need to be unique, and it -%% is guaranteed that no two consecutive blocks have the same -%% prefix. len/1 returns the flattened length of the queue and is -%% O(1). - --export([new/0, is_empty/1, len/1, in/3, in_r/3, out/1, out_r/1, join/2, - foldl/3, foldr/3, from_list/1, to_list/1, map_fold_filter_l/4, - map_fold_filter_r/4]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([bpqueue/0]). - --type(bpqueue() :: {non_neg_integer(), queue()}). --type(prefix() :: any()). --type(value() :: any()). --type(result() :: ({'empty', bpqueue()} | - {{'value', prefix(), value()}, bpqueue()})). - --spec(new/0 :: () -> bpqueue()). --spec(is_empty/1 :: (bpqueue()) -> boolean()). --spec(len/1 :: (bpqueue()) -> non_neg_integer()). --spec(in/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(in_r/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(out/1 :: (bpqueue()) -> result()). --spec(out_r/1 :: (bpqueue()) -> result()). --spec(join/2 :: (bpqueue(), bpqueue()) -> bpqueue()). --spec(foldl/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(foldr/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(from_list/1 :: ([{prefix(), [value()]}]) -> bpqueue()). --spec(to_list/1 :: (bpqueue()) -> [{prefix(), [value()]}]). --spec(map_fold_filter_l/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). --spec(map_fold_filter_r/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> {0, queue:new()}. - -is_empty({0, _Q}) -> true; -is_empty(_BPQ) -> false. - -len({N, _Q}) -> N. - -in(Prefix, Value, {0, Q}) -> - {1, queue:in({Prefix, queue:from_list([Value])}, Q)}; -in(Prefix, Value, BPQ) -> - in1({fun queue:in/2, fun queue:out_r/1}, Prefix, Value, BPQ). - -in_r(Prefix, Value, BPQ = {0, _Q}) -> - in(Prefix, Value, BPQ); -in_r(Prefix, Value, BPQ) -> - in1({fun queue:in_r/2, fun queue:out/1}, Prefix, Value, BPQ). - -in1({In, Out}, Prefix, Value, {N, Q}) -> - {N+1, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, In(Value, InnerQ)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, queue:in(Value, queue:new())}, Q) - end}. - -in_q(Prefix, Queue, BPQ = {0, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - N -> {N, queue:in({Prefix, Queue}, Q)} - end; -in_q(Prefix, Queue, BPQ) -> - in_q1({fun queue:in/2, fun queue:out_r/1, - fun queue:join/2}, - Prefix, Queue, BPQ). - -in_q_r(Prefix, Queue, BPQ = {0, _Q}) -> - in_q(Prefix, Queue, BPQ); -in_q_r(Prefix, Queue, BPQ) -> - in_q1({fun queue:in_r/2, fun queue:out/1, - fun (T, H) -> queue:join(H, T) end}, - Prefix, Queue, BPQ). - -in_q1({In, Out, Join}, Prefix, Queue, BPQ = {N, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - M -> {N + M, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, Join(InnerQ, Queue)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, Queue}, Q) - end} - end. - -out({0, _Q} = BPQ) -> {empty, BPQ}; -out(BPQ) -> out1({fun queue:in_r/2, fun queue:out/1}, BPQ). - -out_r({0, _Q} = BPQ) -> {empty, BPQ}; -out_r(BPQ) -> out1({fun queue:in/2, fun queue:out_r/1}, BPQ). - -out1({In, Out}, {N, Q}) -> - {{value, {Prefix, InnerQ}}, Q1} = Out(Q), - {{value, Value}, InnerQ1} = Out(InnerQ), - Q2 = case queue:is_empty(InnerQ1) of - true -> Q1; - false -> In({Prefix, InnerQ1}, Q1) - end, - {{value, Prefix, Value}, {N-1, Q2}}. - -join({0, _Q}, BPQ) -> - BPQ; -join(BPQ, {0, _Q}) -> - BPQ; -join({NHead, QHead}, {NTail, QTail}) -> - {{value, {Prefix, InnerQHead}}, QHead1} = queue:out_r(QHead), - {NHead + NTail, - case queue:out(QTail) of - {{value, {Prefix, InnerQTail}}, QTail1} -> - queue:join( - queue:in({Prefix, queue:join(InnerQHead, InnerQTail)}, QHead1), - QTail1); - {{value, {_Prefix, _InnerQTail}}, _QTail1} -> - queue:join(QHead, QTail) - end}. - -foldl(_Fun, Init, {0, _Q}) -> Init; -foldl( Fun, Init, {_N, Q}) -> fold1(fun queue:out/1, Fun, Init, Q). - -foldr(_Fun, Init, {0, _Q}) -> Init; -foldr( Fun, Init, {_N, Q}) -> fold1(fun queue:out_r/1, Fun, Init, Q). - -fold1(Out, Fun, Init, Q) -> - case Out(Q) of - {empty, _Q} -> - Init; - {{value, {Prefix, InnerQ}}, Q1} -> - fold1(Out, Fun, fold1(Out, Fun, Prefix, Init, InnerQ), Q1) - end. - -fold1(Out, Fun, Prefix, Init, InnerQ) -> - case Out(InnerQ) of - {empty, _Q} -> - Init; - {{value, Value}, InnerQ1} -> - fold1(Out, Fun, Prefix, Fun(Prefix, Value, Init), InnerQ1) - end. - -from_list(List) -> - {FinalPrefix, FinalInnerQ, ListOfPQs1, Len} = - lists:foldl( - fun ({_Prefix, []}, Acc) -> - Acc; - ({Prefix, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix, queue:join(InnerQ, queue:from_list(InnerList)), - ListOfPQs, LenAcc + length(InnerList)}; - ({Prefix1, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix1, queue:from_list(InnerList), - [{Prefix, InnerQ} | ListOfPQs], LenAcc + length(InnerList)} - end, {undefined, queue:new(), [], 0}, List), - ListOfPQs2 = [{FinalPrefix, FinalInnerQ} | ListOfPQs1], - [{undefined, InnerQ1} | Rest] = All = lists:reverse(ListOfPQs2), - {Len, queue:from_list(case queue:is_empty(InnerQ1) of - true -> Rest; - false -> All - end)}. - -to_list({0, _Q}) -> []; -to_list({_N, Q}) -> [{Prefix, queue:to_list(InnerQ)} || - {Prefix, InnerQ} <- queue:to_list(Q)]. - -%% map_fold_filter_[lr](FilterFun, Fun, Init, BPQ) -> {BPQ, Init} -%% where FilterFun(Prefix) -> boolean() -%% Fun(Value, Init) -> {Prefix, Value, Init} | stop -%% -%% The filter fun allows you to skip very quickly over blocks that -%% you're not interested in. Such blocks appear in the resulting bpq -%% without modification. The Fun is then used both to map the value, -%% which also allows you to change the prefix (and thus block) of the -%% value, and also to modify the Init/Acc (just like a fold). If the -%% Fun returns 'stop' then it is not applied to any further items. -map_fold_filter_l(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_l(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out/1, fun queue:in/2, - fun in_q/3, fun join/2}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter_r(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_r(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out_r/1, fun queue:in_r/2, - fun in_q_r/3, fun (T, H) -> join(H, T) end}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter1(Funs = {Out, _In, InQ, Join}, Len, PFilter, Fun, - Init, Q, QNew) -> - case Out(Q) of - {empty, _Q} -> - {QNew, Init}; - {{value, {Prefix, InnerQ}}, Q1} -> - case PFilter(Prefix) of - true -> - {Init1, QNew1, Cont} = - map_fold_filter2(Funs, Fun, Prefix, Prefix, - Init, InnerQ, QNew, queue:new()), - case Cont of - false -> {Join(QNew1, {Len - len(QNew1), Q1}), Init1}; - true -> map_fold_filter1(Funs, Len, PFilter, Fun, - Init1, Q1, QNew1) - end; - false -> - map_fold_filter1(Funs, Len, PFilter, Fun, - Init, Q1, InQ(Prefix, InnerQ, QNew)) - end - end. - -map_fold_filter2(Funs = {Out, In, InQ, _Join}, Fun, OrigPrefix, Prefix, - Init, InnerQ, QNew, InnerQNew) -> - case Out(InnerQ) of - {empty, _Q} -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), true}; - {{value, Value}, InnerQ1} -> - case Fun(Value, Init) of - stop -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), false}; - {Prefix1, Value1, Init1} -> - {Prefix2, QNew1, InnerQNew1} = - case Prefix1 =:= Prefix of - true -> {Prefix, QNew, In(Value1, InnerQNew)}; - false -> {Prefix1, InQ(Prefix, InnerQNew, QNew), - In(Value1, queue:new())} - end, - map_fold_filter2(Funs, Fun, OrigPrefix, Prefix2, - Init1, InnerQ1, QNew1, InnerQNew1) - end - end. diff --git a/src/delegate.erl b/src/delegate.erl deleted file mode 100644 index 46bd8245..00000000 --- a/src/delegate.erl +++ /dev/null @@ -1,164 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate). - --behaviour(gen_server2). - --export([start_link/1, invoke_no_result/2, invoke/2, delegate_count/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: - (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). --spec(invoke_no_result/2 :: - (pid() | [pid()], fun ((pid()) -> any())) -> 'ok'). --spec(invoke/2 :: - ( pid(), fun ((pid()) -> A)) -> A; - ([pid()], fun ((pid()) -> A)) -> {[{pid(), A}], - [{pid(), term()}]}). - --spec(delegate_count/1 :: ([node()]) -> non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(Num) -> - gen_server2:start_link({local, delegate_name(Num)}, ?MODULE, [], []). - -invoke(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - Fun(Pid); -invoke(Pid, Fun) when is_pid(Pid) -> - case invoke([Pid], Fun) of - {[{Pid, Result}], []} -> - Result; - {[], [{Pid, {Class, Reason, StackTrace}}]} -> - erlang:raise(Class, Reason, StackTrace) - end; - -invoke(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - %% The use of multi_call is only safe because the timeout is - %% infinity, and thus there is no process spawned in order to do - %% the sending. Thus calls can't overtake preceding calls/casts. - {Replies, BadNodes} = - case orddict:fetch_keys(Grouped) of - [] -> {[], []}; - RemoteNodes -> gen_server2:multi_call( - RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}, infinity) - end, - BadPids = [{Pid, {exit, {nodedown, BadNode}, []}} || - BadNode <- BadNodes, - Pid <- orddict:fetch(BadNode, Grouped)], - ResultsNoNode = lists:append([safe_invoke(LocalPids, Fun) | - [Results || {_Node, Results} <- Replies]]), - lists:foldl( - fun ({ok, Pid, Result}, {Good, Bad}) -> {[{Pid, Result} | Good], Bad}; - ({error, Pid, Error}, {Good, Bad}) -> {Good, [{Pid, Error} | Bad]} - end, {[], BadPids}, ResultsNoNode). - -invoke_no_result(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - safe_invoke(Pid, Fun), %% we don't care about any error - ok; -invoke_no_result(Pid, Fun) when is_pid(Pid) -> - invoke_no_result([Pid], Fun); - -invoke_no_result(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - case orddict:fetch_keys(Grouped) of - [] -> ok; - RemoteNodes -> gen_server2:abcast(RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}) - end, - safe_invoke(LocalPids, Fun), %% must not die - ok. - -%%---------------------------------------------------------------------------- - -group_pids_by_node(Pids) -> - LocalNode = node(), - lists:foldl( - fun (Pid, {Local, Remote}) when node(Pid) =:= LocalNode -> - {[Pid | Local], Remote}; - (Pid, {Local, Remote}) -> - {Local, - orddict:update( - node(Pid), fun (List) -> [Pid | List] end, [Pid], Remote)} - end, {[], orddict:new()}, Pids). - -delegate_count([RemoteNode | _]) -> - {ok, Count} = case application:get_env(rabbit, delegate_count) of - undefined -> rpc:call(RemoteNode, application, get_env, - [rabbit, delegate_count]); - Result -> Result - end, - Count. - -delegate_name(Hash) -> - list_to_atom("delegate_" ++ integer_to_list(Hash)). - -delegate(RemoteNodes) -> - case get(delegate) of - undefined -> Name = - delegate_name(erlang:phash2( - self(), delegate_count(RemoteNodes))), - put(delegate, Name), - Name; - Name -> Name - end. - -safe_invoke(Pids, Fun) when is_list(Pids) -> - [safe_invoke(Pid, Fun) || Pid <- Pids]; -safe_invoke(Pid, Fun) when is_pid(Pid) -> - try - {ok, Pid, Fun(Pid)} - catch Class:Reason -> - {error, Pid, {Class, Reason, erlang:get_stacktrace()}} - end. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, node(), hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({invoke, Fun, Grouped}, _From, Node) -> - {reply, safe_invoke(orddict:fetch(Node, Grouped), Fun), Node, hibernate}. - -handle_cast({invoke, Fun, Grouped}, Node) -> - safe_invoke(orddict:fetch(Node, Grouped), Fun), - {noreply, Node, hibernate}. - -handle_info(_Info, Node) -> - {noreply, Node, hibernate}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, Node, _Extra) -> - {ok, Node}. diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl deleted file mode 100644 index e0ffa7c8..00000000 --- a/src/delegate_sup.erl +++ /dev/null @@ -1,47 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate_sup). - --behaviour(supervisor). - --export([start_link/0]). - --export([init/1]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -%%---------------------------------------------------------------------------- - -init(_Args) -> - DCount = delegate:delegate_count([node()]), - {ok, {{one_for_one, 10, 10}, - [{Num, {delegate, start_link, [Num]}, - transient, 16#ffffffff, worker, [delegate]} || - Num <- lists:seq(0, DCount - 1)]}}. diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl deleted file mode 100644 index 1e1f37cb..00000000 --- a/src/file_handle_cache.erl +++ /dev/null @@ -1,1176 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(file_handle_cache). - -%% A File Handle Cache -%% -%% This extends a subset of the functionality of the Erlang file -%% module. In the below, we use "file handle" to specifically refer to -%% file handles, and "file descriptor" to refer to descriptors which -%% are not file handles, e.g. sockets. -%% -%% Some constraints -%% 1) This supports one writer, multiple readers per file. Nothing -%% else. -%% 2) Do not open the same file from different processes. Bad things -%% may happen, especially for writes. -%% 3) Writes are all appends. You cannot write to the middle of a -%% file, although you can truncate and then append if you want. -%% 4) Although there is a write buffer, there is no read buffer. Feel -%% free to use the read_ahead mode, but beware of the interaction -%% between that buffer and the write buffer. -%% -%% Some benefits -%% 1) You do not have to remember to call sync before close -%% 2) Buffering is much more flexible than with the plain file module, -%% and you can control when the buffer gets flushed out. This means -%% that you can rely on reads-after-writes working, without having to -%% call the expensive sync. -%% 3) Unnecessary calls to position and sync get optimised out. -%% 4) You can find out what your 'real' offset is, and what your -%% 'virtual' offset is (i.e. where the hdl really is, and where it -%% would be after the write buffer is written out). -%% 5) You can find out what the offset was when you last sync'd. -%% -%% There is also a server component which serves to limit the number -%% of open file descriptors. This is a hard limit: the server -%% component will ensure that clients do not have more file -%% descriptors open than it's configured to allow. -%% -%% On open, the client requests permission from the server to open the -%% required number of file handles. The server may ask the client to -%% close other file handles that it has open, or it may queue the -%% request and ask other clients to close file handles they have open -%% in order to satisfy the request. Requests are always satisfied in -%% the order they arrive, even if a latter request (for a small number -%% of file handles) can be satisfied before an earlier request (for a -%% larger number of file handles). On close, the client sends a -%% message to the server. These messages allow the server to keep -%% track of the number of open handles. The client also keeps a -%% gb_tree which is updated on every use of a file handle, mapping the -%% time at which the file handle was last used (timestamp) to the -%% handle. Thus the smallest key in this tree maps to the file handle -%% that has not been used for the longest amount of time. This -%% smallest key is included in the messages to the server. As such, -%% the server keeps track of when the least recently used file handle -%% was used *at the point of the most recent open or close* by each -%% client. -%% -%% Note that this data can go very out of date, by the client using -%% the least recently used handle. -%% -%% When the limit is exceeded (i.e. the number of open file handles is -%% at the limit and there are pending 'open' requests), the server -%% calculates the average age of the last reported least recently used -%% file handle of all the clients. It then tells all the clients to -%% close any handles not used for longer than this average, by -%% invoking the callback the client registered. The client should -%% receive this message and pass it into -%% set_maximum_since_use/1. However, it is highly possible this age -%% will be greater than the ages of all the handles the client knows -%% of because the client has used its file handles in the mean -%% time. Thus at this point the client reports to the server the -%% current timestamp at which its least recently used file handle was -%% last used. The server will check two seconds later that either it -%% is back under the limit, in which case all is well again, or if -%% not, it will calculate a new average age. Its data will be much -%% more recent now, and so it is very likely that when this is -%% communicated to the clients, the clients will close file handles. -%% (In extreme cases, where it's very likely that all clients have -%% used their open handles since they last sent in an update, which -%% would mean that the average will never cause any file handles to -%% be closed, the server can send out an average age of 0, resulting -%% in all available clients closing all their file handles.) -%% -%% Care is taken to ensure that (a) processes which are blocked -%% waiting for file descriptors to become available are not sent -%% requests to close file handles; and (b) given it is known how many -%% file handles a process has open, when the average age is forced to -%% 0, close messages are only sent to enough processes to release the -%% correct number of file handles and the list of processes is -%% randomly shuffled. This ensures we don't cause processes to -%% needlessly close file handles, and ensures that we don't always -%% make such requests of the same processes. -%% -%% The advantage of this scheme is that there is only communication -%% from the client to the server on open, close, and when in the -%% process of trying to reduce file handle usage. There is no -%% communication from the client to the server on normal file handle -%% operations. This scheme forms a feed-back loop - the server does -%% not care which file handles are closed, just that some are, and it -%% checks this repeatedly when over the limit. -%% -%% Handles which are closed as a result of the server are put into a -%% "soft-closed" state in which the handle is closed (data flushed out -%% and sync'd first) but the state is maintained. The handle will be -%% fully reopened again as soon as needed, thus users of this library -%% do not need to worry about their handles being closed by the server -%% - reopening them when necessary is handled transparently. -%% -%% The server also supports obtain and transfer. obtain/0 blocks until -%% a file descriptor is available, at which point the requesting -%% process is considered to 'own' one more descriptor. transfer/1 -%% transfers ownership of a file descriptor between processes. It is -%% non-blocking. Obtain is used to obtain permission to accept file -%% descriptors. Obtain has a lower limit, set by the ?OBTAIN_LIMIT/1 -%% macro. File handles can use the entire limit, but will be evicted -%% by obtain calls up to the point at which no more obtain calls can -%% be satisfied by the obtains limit. Thus there will always be some -%% capacity available for file handles. Processes that use obtain are -%% never asked to return them, and they are not managed in any way by -%% the server. It is simply a mechanism to ensure that processes that -%% need file descriptors such as sockets can do so in such a way that -%% the overall number of open file descriptors is managed. -%% -%% The callers of register_callback/3, obtain/0, and the argument of -%% transfer/1 are monitored, reducing the count of handles in use -%% appropriately when the processes terminate. - --behaviour(gen_server). - --export([register_callback/3]). --export([open/3, close/1, read/2, append/2, sync/1, position/2, truncate/1, - last_sync_offset/1, current_virtual_offset/1, current_raw_offset/1, - flush/1, copy/3, set_maximum_since_use/1, delete/1, clear/1]). --export([obtain/0, transfer/1, set_limit/1, get_limit/0]). --export([ulimit/0]). - --export([start_link/0, init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). --define(RESERVED_FOR_OTHERS, 100). - -%% Googling around suggests that Windows has a limit somewhere around -%% 16M, eg -%% http://blogs.technet.com/markrussinovich/archive/2009/09/29/3283844.aspx -%% however, it turns out that's only available through the win32 -%% API. Via the C Runtime, we have just 512: -%% http://msdn.microsoft.com/en-us/library/6e3b887c%28VS.80%29.aspx --define(FILE_HANDLES_LIMIT_WINDOWS, 512). --define(FILE_HANDLES_LIMIT_OTHER, 1024). --define(FILE_HANDLES_CHECK_INTERVAL, 2000). - --define(OBTAIN_LIMIT(LIMIT), trunc((LIMIT * 0.9) - 2)). --define(CLIENT_ETS_TABLE, ?MODULE). - -%%---------------------------------------------------------------------------- - --record(file, - { reader_count, - has_writer - }). - --record(handle, - { hdl, - offset, - trusted_offset, - is_dirty, - write_buffer_size, - write_buffer_size_limit, - write_buffer, - at_eof, - path, - mode, - options, - is_write, - is_read, - last_used_at - }). - --record(fhc_state, - { elders, - limit, - open_count, - open_pending, - obtain_limit, - obtain_count, - obtain_pending, - clients, - timer_ref - }). - --record(cstate, - { pid, - callback, - opened, - obtained, - blocked, - pending_closes - }). - --record(pending, - { kind, - pid, - requested, - from - }). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(ref() :: any()). --type(ok_or_error() :: 'ok' | {'error', any()}). --type(val_or_error(T) :: {'ok', T} | {'error', any()}). --type(position() :: ('bof' | 'eof' | non_neg_integer() | - {('bof' |'eof'), non_neg_integer()} | - {'cur', integer()})). --type(offset() :: non_neg_integer()). - --spec(register_callback/3 :: (atom(), atom(), [any()]) -> 'ok'). --spec(open/3 :: - (string(), [any()], - [{'write_buffer', (non_neg_integer() | 'infinity' | 'unbuffered')}]) - -> val_or_error(ref())). --spec(close/1 :: (ref()) -> ok_or_error()). --spec(read/2 :: (ref(), non_neg_integer()) -> - val_or_error([char()] | binary()) | 'eof'). --spec(append/2 :: (ref(), iodata()) -> ok_or_error()). --spec(sync/1 :: (ref()) -> ok_or_error()). --spec(position/2 :: (ref(), position()) -> val_or_error(offset())). --spec(truncate/1 :: (ref()) -> ok_or_error()). --spec(last_sync_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_virtual_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_raw_offset/1 :: (ref()) -> val_or_error(offset())). --spec(flush/1 :: (ref()) -> ok_or_error()). --spec(copy/3 :: (ref(), ref(), non_neg_integer()) -> - val_or_error(non_neg_integer())). --spec(set_maximum_since_use/1 :: (non_neg_integer()) -> 'ok'). --spec(delete/1 :: (ref()) -> ok_or_error()). --spec(clear/1 :: (ref()) -> ok_or_error()). --spec(obtain/0 :: () -> 'ok'). --spec(transfer/1 :: (pid()) -> 'ok'). --spec(set_limit/1 :: (non_neg_integer()) -> 'ok'). --spec(get_limit/0 :: () -> non_neg_integer()). --spec(ulimit/0 :: () -> 'infinity' | 'unknown' | non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], [{timeout, infinity}]). - -register_callback(M, F, A) - when is_atom(M) andalso is_atom(F) andalso is_list(A) -> - gen_server:cast(?SERVER, {register_callback, self(), {M, F, A}}). - -open(Path, Mode, Options) -> - Path1 = filename:absname(Path), - File1 = #file { reader_count = RCount, has_writer = HasWriter } = - case get({Path1, fhc_file}) of - File = #file {} -> File; - undefined -> #file { reader_count = 0, - has_writer = false } - end, - Mode1 = append_to_write(Mode), - IsWriter = is_writer(Mode1), - case IsWriter andalso HasWriter of - true -> {error, writer_exists}; - false -> {ok, Ref} = new_closed_handle(Path1, Mode1, Options), - case get_or_reopen([{Ref, new}]) of - {ok, [_Handle1]} -> - RCount1 = case is_reader(Mode1) of - true -> RCount + 1; - false -> RCount - end, - HasWriter1 = HasWriter orelse IsWriter, - put({Path1, fhc_file}, - File1 #file { reader_count = RCount1, - has_writer = HasWriter1 }), - {ok, Ref}; - Error -> - erase({Ref, fhc_handle}), - Error - end - end. - -close(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> ok; - Handle -> case hard_close(Handle) of - ok -> ok; - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -read(Ref, Count) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_read = false }]) -> - {error, not_open_for_reading}; - ([Handle = #handle { hdl = Hdl, offset = Offset }]) -> - case file:read(Hdl, Count) of - {ok, Data} = Obj -> Offset1 = Offset + iolist_size(Data), - {Obj, - [Handle #handle { offset = Offset1 }]}; - eof -> {eof, [Handle #handle { at_eof = true }]}; - Error -> {Error, [Handle]} - end - end). - -append(Ref, Data) -> - with_handles( - [Ref], - fun ([#handle { is_write = false }]) -> - {error, not_open_for_writing}; - ([Handle]) -> - case maybe_seek(eof, Handle) of - {{ok, _Offset}, #handle { hdl = Hdl, offset = Offset, - write_buffer_size_limit = 0, - at_eof = true } = Handle1} -> - Offset1 = Offset + iolist_size(Data), - {file:write(Hdl, Data), - [Handle1 #handle { is_dirty = true, offset = Offset1 }]}; - {{ok, _Offset}, #handle { write_buffer = WriteBuffer, - write_buffer_size = Size, - write_buffer_size_limit = Limit, - at_eof = true } = Handle1} -> - WriteBuffer1 = [Data | WriteBuffer], - Size1 = Size + iolist_size(Data), - Handle2 = Handle1 #handle { write_buffer = WriteBuffer1, - write_buffer_size = Size1 }, - case Limit =/= infinity andalso Size1 > Limit of - true -> {Result, Handle3} = write_buffer(Handle2), - {Result, [Handle3]}; - false -> {ok, [Handle2]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -sync(Ref) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_dirty = false, write_buffer = [] }]) -> - ok; - ([Handle = #handle { hdl = Hdl, offset = Offset, - is_dirty = true, write_buffer = [] }]) -> - case file:sync(Hdl) of - ok -> {ok, [Handle #handle { trusted_offset = Offset, - is_dirty = false }]}; - Error -> {Error, [Handle]} - end - end). - -position(Ref, NewOffset) -> - with_flushed_handles( - [Ref], - fun ([Handle]) -> {Result, Handle1} = maybe_seek(NewOffset, Handle), - {Result, [Handle1]} - end). - -truncate(Ref) -> - with_flushed_handles( - [Ref], - fun ([Handle1 = #handle { hdl = Hdl, offset = Offset, - trusted_offset = TOffset }]) -> - case file:truncate(Hdl) of - ok -> TOffset1 = lists:min([Offset, TOffset]), - {ok, [Handle1 #handle { trusted_offset = TOffset1, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end - end). - -last_sync_offset(Ref) -> - with_handles([Ref], fun ([#handle { trusted_offset = TOffset }]) -> - {ok, TOffset} - end). - -current_virtual_offset(Ref) -> - with_handles([Ref], fun ([#handle { at_eof = true, is_write = true, - offset = Offset, - write_buffer_size = Size }]) -> - {ok, Offset + Size}; - ([#handle { offset = Offset }]) -> - {ok, Offset} - end). - -current_raw_offset(Ref) -> - with_handles([Ref], fun ([Handle]) -> {ok, Handle #handle.offset} end). - -flush(Ref) -> - with_flushed_handles([Ref], fun ([Handle]) -> {ok, [Handle]} end). - -copy(Src, Dest, Count) -> - with_flushed_handles( - [Src, Dest], - fun ([SHandle = #handle { is_read = true, hdl = SHdl, offset = SOffset }, - DHandle = #handle { is_write = true, hdl = DHdl, offset = DOffset }] - ) -> - case file:copy(SHdl, DHdl, Count) of - {ok, Count1} = Result1 -> - {Result1, - [SHandle #handle { offset = SOffset + Count1 }, - DHandle #handle { offset = DOffset + Count1, - is_dirty = true }]}; - Error -> - {Error, [SHandle, DHandle]} - end; - (_Handles) -> - {error, incorrect_handle_modes} - end). - -delete(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> - ok; - Handle = #handle { path = Path } -> - case hard_close(Handle #handle { is_dirty = false, - write_buffer = [] }) of - ok -> file:delete(Path); - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -clear(Ref) -> - with_handles( - [Ref], - fun ([#handle { at_eof = true, write_buffer_size = 0, offset = 0 }]) -> - ok; - ([Handle]) -> - case maybe_seek(bof, Handle #handle { write_buffer = [], - write_buffer_size = 0 }) of - {{ok, 0}, Handle1 = #handle { hdl = Hdl }} -> - case file:truncate(Hdl) of - ok -> {ok, [Handle1 #handle {trusted_offset = 0, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -set_maximum_since_use(MaximumAge) -> - Now = now(), - case lists:foldl( - fun ({{Ref, fhc_handle}, - Handle = #handle { hdl = Hdl, last_used_at = Then }}, Rep) -> - case Hdl =/= closed andalso - timer:now_diff(Now, Then) >= MaximumAge of - true -> soft_close(Ref, Handle) orelse Rep; - false -> Rep - end; - (_KeyValuePair, Rep) -> - Rep - end, false, get()) of - false -> age_tree_change(), ok; - true -> ok - end. - -obtain() -> - gen_server:call(?SERVER, {obtain, self()}, infinity). - -transfer(Pid) -> - gen_server:cast(?SERVER, {transfer, self(), Pid}). - -set_limit(Limit) -> - gen_server:call(?SERVER, {set_limit, Limit}, infinity). - -get_limit() -> - gen_server:call(?SERVER, get_limit, infinity). - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -is_reader(Mode) -> lists:member(read, Mode). - -is_writer(Mode) -> lists:member(write, Mode). - -append_to_write(Mode) -> - case lists:member(append, Mode) of - true -> [write | Mode -- [append, write]]; - false -> Mode - end. - -with_handles(Refs, Fun) -> - case get_or_reopen([{Ref, reopen} || Ref <- Refs]) of - {ok, Handles} -> - case Fun(Handles) of - {Result, Handles1} when is_list(Handles1) -> - lists:zipwith(fun put_handle/2, Refs, Handles1), - Result; - Result -> - Result - end; - Error -> - Error - end. - -with_flushed_handles(Refs, Fun) -> - with_handles( - Refs, - fun (Handles) -> - case lists:foldl( - fun (Handle, {ok, HandlesAcc}) -> - {Res, Handle1} = write_buffer(Handle), - {Res, [Handle1 | HandlesAcc]}; - (Handle, {Error, HandlesAcc}) -> - {Error, [Handle | HandlesAcc]} - end, {ok, []}, Handles) of - {ok, Handles1} -> - Fun(lists:reverse(Handles1)); - {Error, Handles1} -> - {Error, lists:reverse(Handles1)} - end - end). - -get_or_reopen(RefNewOrReopens) -> - case partition_handles(RefNewOrReopens) of - {OpenHdls, []} -> - {ok, [Handle || {_Ref, Handle} <- OpenHdls]}; - {OpenHdls, ClosedHdls} -> - Oldest = oldest(get_age_tree(), fun () -> now() end), - case gen_server:call(?SERVER, {open, self(), length(ClosedHdls), - Oldest}, infinity) of - ok -> - case reopen(ClosedHdls) of - {ok, RefHdls} -> sort_handles(RefNewOrReopens, - OpenHdls, RefHdls, []); - Error -> Error - end; - close -> - [soft_close(Ref, Handle) || - {{Ref, fhc_handle}, Handle = #handle { hdl = Hdl }} <- - get(), - Hdl =/= closed], - get_or_reopen(RefNewOrReopens) - end - end. - -reopen(ClosedHdls) -> reopen(ClosedHdls, get_age_tree(), []). - -reopen([], Tree, RefHdls) -> - put_age_tree(Tree), - {ok, lists:reverse(RefHdls)}; -reopen([{Ref, NewOrReopen, Handle = #handle { hdl = closed, - path = Path, - mode = Mode, - offset = Offset, - last_used_at = undefined }} | - RefNewOrReopenHdls] = ToOpen, Tree, RefHdls) -> - case file:open(Path, case NewOrReopen of - new -> Mode; - reopen -> [read | Mode] - end) of - {ok, Hdl} -> - Now = now(), - {{ok, Offset1}, Handle1} = - maybe_seek(Offset, Handle #handle { hdl = Hdl, - offset = 0, - last_used_at = Now }), - Handle2 = Handle1 #handle { trusted_offset = Offset1 }, - put({Ref, fhc_handle}, Handle2), - reopen(RefNewOrReopenHdls, gb_trees:insert(Now, Ref, Tree), - [{Ref, Handle2} | RefHdls]); - Error -> - %% NB: none of the handles in ToOpen are in the age tree - Oldest = oldest(Tree, fun () -> undefined end), - [gen_server:cast(?SERVER, {close, self(), Oldest}) || _ <- ToOpen], - put_age_tree(Tree), - Error - end. - -partition_handles(RefNewOrReopens) -> - lists:foldr( - fun ({Ref, NewOrReopen}, {Open, Closed}) -> - case get({Ref, fhc_handle}) of - #handle { hdl = closed } = Handle -> - {Open, [{Ref, NewOrReopen, Handle} | Closed]}; - #handle {} = Handle -> - {[{Ref, Handle} | Open], Closed} - end - end, {[], []}, RefNewOrReopens). - -sort_handles([], [], [], Acc) -> - {ok, lists:reverse(Acc)}; -sort_handles([{Ref, _} | RefHdls], [{Ref, Handle} | RefHdlsA], RefHdlsB, Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]); -sort_handles([{Ref, _} | RefHdls], RefHdlsA, [{Ref, Handle} | RefHdlsB], Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]). - -put_handle(Ref, Handle = #handle { last_used_at = Then }) -> - Now = now(), - age_tree_update(Then, Now, Ref), - put({Ref, fhc_handle}, Handle #handle { last_used_at = Now }). - -with_age_tree(Fun) -> put_age_tree(Fun(get_age_tree())). - -get_age_tree() -> - case get(fhc_age_tree) of - undefined -> gb_trees:empty(); - AgeTree -> AgeTree - end. - -put_age_tree(Tree) -> put(fhc_age_tree, Tree). - -age_tree_update(Then, Now, Ref) -> - with_age_tree( - fun (Tree) -> - gb_trees:insert(Now, Ref, gb_trees:delete_any(Then, Tree)) - end). - -age_tree_delete(Then) -> - with_age_tree( - fun (Tree) -> - Tree1 = gb_trees:delete_any(Then, Tree), - Oldest = oldest(Tree1, fun () -> undefined end), - gen_server:cast(?SERVER, {close, self(), Oldest}), - Tree1 - end). - -age_tree_change() -> - with_age_tree( - fun (Tree) -> - case gb_trees:is_empty(Tree) of - true -> Tree; - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - gen_server:cast(?SERVER, {update, self(), Oldest}) - end, - Tree - end). - -oldest(Tree, DefaultFun) -> - case gb_trees:is_empty(Tree) of - true -> DefaultFun(); - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - Oldest - end. - -new_closed_handle(Path, Mode, Options) -> - WriteBufferSize = - case proplists:get_value(write_buffer, Options, unbuffered) of - unbuffered -> 0; - infinity -> infinity; - N when is_integer(N) -> N - end, - Ref = make_ref(), - put({Ref, fhc_handle}, #handle { hdl = closed, - offset = 0, - trusted_offset = 0, - is_dirty = false, - write_buffer_size = 0, - write_buffer_size_limit = WriteBufferSize, - write_buffer = [], - at_eof = false, - path = Path, - mode = Mode, - options = Options, - is_write = is_writer(Mode), - is_read = is_reader(Mode), - last_used_at = undefined }), - {ok, Ref}. - -soft_close(Ref, Handle) -> - {Res, Handle1} = soft_close(Handle), - case Res of - ok -> put({Ref, fhc_handle}, Handle1), - true; - _ -> put_handle(Ref, Handle1), - false - end. - -soft_close(Handle = #handle { hdl = closed }) -> - {ok, Handle}; -soft_close(Handle) -> - case write_buffer(Handle) of - {ok, #handle { hdl = Hdl, - offset = Offset, - is_dirty = IsDirty, - last_used_at = Then } = Handle1 } -> - ok = case IsDirty of - true -> file:sync(Hdl); - false -> ok - end, - ok = file:close(Hdl), - age_tree_delete(Then), - {ok, Handle1 #handle { hdl = closed, - trusted_offset = Offset, - is_dirty = false, - last_used_at = undefined }}; - {_Error, _Handle} = Result -> - Result - end. - -hard_close(Handle) -> - case soft_close(Handle) of - {ok, #handle { path = Path, - is_read = IsReader, is_write = IsWriter }} -> - #file { reader_count = RCount, has_writer = HasWriter } = File = - get({Path, fhc_file}), - RCount1 = case IsReader of - true -> RCount - 1; - false -> RCount - end, - HasWriter1 = HasWriter andalso not IsWriter, - case RCount1 =:= 0 andalso not HasWriter1 of - true -> erase({Path, fhc_file}); - false -> put({Path, fhc_file}, - File #file { reader_count = RCount1, - has_writer = HasWriter1 }) - end, - ok; - {_Error, _Handle} = Result -> - Result - end. - -maybe_seek(NewOffset, Handle = #handle { hdl = Hdl, offset = Offset, - at_eof = AtEoF }) -> - {AtEoF1, NeedsSeek} = needs_seek(AtEoF, Offset, NewOffset), - case (case NeedsSeek of - true -> file:position(Hdl, NewOffset); - false -> {ok, Offset} - end) of - {ok, Offset1} = Result -> - {Result, Handle #handle { offset = Offset1, at_eof = AtEoF1 }}; - {error, _} = Error -> - {Error, Handle} - end. - -needs_seek( AtEoF, _CurOffset, cur ) -> {AtEoF, false}; -needs_seek( AtEoF, _CurOffset, {cur, 0}) -> {AtEoF, false}; -needs_seek( true, _CurOffset, eof ) -> {true , false}; -needs_seek( true, _CurOffset, {eof, 0}) -> {true , false}; -needs_seek( false, _CurOffset, eof ) -> {true , true }; -needs_seek( false, _CurOffset, {eof, 0}) -> {true , true }; -needs_seek( AtEoF, 0, bof ) -> {AtEoF, false}; -needs_seek( AtEoF, 0, {bof, 0}) -> {AtEoF, false}; -needs_seek( AtEoF, CurOffset, CurOffset) -> {AtEoF, false}; -needs_seek( true, CurOffset, {bof, DesiredOffset}) - when DesiredOffset >= CurOffset -> - {true, true}; -needs_seek( true, _CurOffset, {cur, DesiredOffset}) - when DesiredOffset > 0 -> - {true, true}; -needs_seek( true, CurOffset, DesiredOffset) %% same as {bof, DO} - when is_integer(DesiredOffset) andalso DesiredOffset >= CurOffset -> - {true, true}; -%% because we can't really track size, we could well end up at EoF and not know -needs_seek(_AtEoF, _CurOffset, _DesiredOffset) -> - {false, true}. - -write_buffer(Handle = #handle { write_buffer = [] }) -> - {ok, Handle}; -write_buffer(Handle = #handle { hdl = Hdl, offset = Offset, - write_buffer = WriteBuffer, - write_buffer_size = DataSize, - at_eof = true }) -> - case file:write(Hdl, lists:reverse(WriteBuffer)) of - ok -> - Offset1 = Offset + DataSize, - {ok, Handle #handle { offset = Offset1, is_dirty = true, - write_buffer = [], write_buffer_size = 0 }}; - {error, _} = Error -> - {Error, Handle} - end. - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - Limit = case application:get_env(file_handles_high_watermark) of - {ok, Watermark} when (is_integer(Watermark) andalso - Watermark > 0) -> - Watermark; - _ -> - case ulimit() of - infinity -> infinity; - unknown -> ?FILE_HANDLES_LIMIT_OTHER; - Lim -> lists:max([2, Lim - ?RESERVED_FOR_OTHERS]) - end - end, - ObtainLimit = obtain_limit(Limit), - error_logger:info_msg("Limiting to approx ~p file handles (~p sockets)~n", - [Limit, ObtainLimit]), - Clients = ets:new(?CLIENT_ETS_TABLE, [set, private, {keypos, #cstate.pid}]), - {ok, #fhc_state { elders = dict:new(), - limit = Limit, - open_count = 0, - open_pending = pending_new(), - obtain_limit = ObtainLimit, - obtain_count = 0, - obtain_pending = pending_new(), - clients = Clients, - timer_ref = undefined }}. - -handle_call({open, Pid, Requested, EldestUnusedSince}, From, - State = #fhc_state { open_count = Count, - open_pending = Pending, - elders = Elders, - clients = Clients }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - Item = #pending { kind = open, - pid = Pid, - requested = Requested, - from = From }, - ok = track_client(Pid, Clients), - State1 = State #fhc_state { elders = Elders1 }, - case needs_reduce(State1 #fhc_state { open_count = Count + Requested }) of - true -> case ets:lookup(Clients, Pid) of - [#cstate { opened = 0 }] -> - true = ets:update_element( - Clients, Pid, {#cstate.blocked, true}), - {noreply, - reduce(State1 #fhc_state { - open_pending = pending_in(Item, Pending) })}; - [#cstate { opened = Opened }] -> - true = ets:update_element( - Clients, Pid, - {#cstate.pending_closes, Opened}), - {reply, close, State1} - end; - false -> {noreply, run_pending_item(Item, State1)} - end; - -handle_call({obtain, Pid}, From, State = #fhc_state { obtain_limit = Limit, - obtain_count = Count, - obtain_pending = Pending, - clients = Clients }) - when Limit =/= infinity andalso Count >= Limit -> - ok = track_client(Pid, Clients), - true = ets:update_element(Clients, Pid, {#cstate.blocked, true}), - Item = #pending { kind = obtain, pid = Pid, requested = 1, from = From }, - {noreply, State #fhc_state { obtain_pending = pending_in(Item, Pending) }}; -handle_call({obtain, Pid}, From, State = #fhc_state { obtain_count = Count, - obtain_pending = Pending, - clients = Clients }) -> - Item = #pending { kind = obtain, pid = Pid, requested = 1, from = From }, - ok = track_client(Pid, Clients), - case needs_reduce(State #fhc_state { obtain_count = Count + 1 }) of - true -> - true = ets:update_element(Clients, Pid, {#cstate.blocked, true}), - {noreply, reduce(State #fhc_state { - obtain_pending = pending_in(Item, Pending) })}; - false -> - {noreply, run_pending_item(Item, State)} - end; -handle_call({set_limit, Limit}, _From, State) -> - {reply, ok, maybe_reduce( - process_pending(State #fhc_state { - limit = Limit, - obtain_limit = obtain_limit(Limit) }))}; -handle_call(get_limit, _From, State = #fhc_state { limit = Limit }) -> - {reply, Limit, State}. - -handle_cast({register_callback, Pid, MFA}, - State = #fhc_state { clients = Clients }) -> - ok = track_client(Pid, Clients), - true = ets:update_element(Clients, Pid, {#cstate.callback, MFA}), - {noreply, State}; - -handle_cast({update, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - %% don't call maybe_reduce from here otherwise we can create a - %% storm of messages - {noreply, State #fhc_state { elders = Elders1 }}; - -handle_cast({close, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders, clients = Clients }) -> - Elders1 = case EldestUnusedSince of - undefined -> dict:erase(Pid, Elders); - _ -> dict:store(Pid, EldestUnusedSince, Elders) - end, - ets:update_counter(Clients, Pid, {#cstate.pending_closes, -1, 0, 0}), - {noreply, process_pending( - update_counts(open, Pid, -1, - State #fhc_state { elders = Elders1 }))}; - -handle_cast({transfer, FromPid, ToPid}, State) -> - ok = track_client(ToPid, State#fhc_state.clients), - {noreply, process_pending( - update_counts(obtain, ToPid, +1, - update_counts(obtain, FromPid, -1, State)))}; - -handle_cast(check_counts, State) -> - {noreply, maybe_reduce(State #fhc_state { timer_ref = undefined })}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #fhc_state { elders = Elders, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_pending = ObtainPending, - clients = Clients }) -> - [#cstate { opened = Opened, obtained = Obtained }] = - ets:lookup(Clients, Pid), - true = ets:delete(Clients, Pid), - FilterFun = fun (#pending { pid = Pid1 }) -> Pid1 =/= Pid end, - {noreply, process_pending( - State #fhc_state { - open_count = OpenCount - Opened, - open_pending = filter_pending(FilterFun, OpenPending), - obtain_count = ObtainCount - Obtained, - obtain_pending = filter_pending(FilterFun, ObtainPending), - elders = dict:erase(Pid, Elders) })}. - -terminate(_Reason, State = #fhc_state { clients = Clients }) -> - ets:delete(Clients), - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% pending queue abstraction helpers -%%---------------------------------------------------------------------------- - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -filter_pending(Fun, {Count, Queue}) -> - {Delta, Queue1} = - queue_fold(fun (Item, {DeltaN, QueueN}) -> - case Fun(Item) of - true -> {DeltaN, queue:in(Item, QueueN)}; - false -> {DeltaN - requested(Item), QueueN} - end - end, {0, queue:new()}, Queue), - {Count + Delta, Queue1}. - -pending_new() -> - {0, queue:new()}. - -pending_in(Item = #pending { requested = Requested }, {Count, Queue}) -> - {Count + Requested, queue:in(Item, Queue)}. - -pending_out({0, _Queue} = Pending) -> - {empty, Pending}; -pending_out({N, Queue}) -> - {{value, #pending { requested = Requested }} = Result, Queue1} = - queue:out(Queue), - {Result, {N - Requested, Queue1}}. - -pending_count({Count, _Queue}) -> - Count. - -pending_is_empty({0, _Queue}) -> - true; -pending_is_empty({_N, _Queue}) -> - false. - -%%---------------------------------------------------------------------------- -%% server helpers -%%---------------------------------------------------------------------------- - -obtain_limit(infinity) -> infinity; -obtain_limit(Limit) -> case ?OBTAIN_LIMIT(Limit) of - OLimit when OLimit < 0 -> 0; - OLimit -> OLimit - end. - -requested({_Kind, _Pid, Requested, _From}) -> - Requested. - -process_pending(State = #fhc_state { limit = infinity }) -> - State; -process_pending(State) -> - process_open(process_obtain(State)). - -process_open(State = #fhc_state { limit = Limit, - open_pending = Pending, - open_count = OpenCount, - obtain_count = ObtainCount }) -> - {Pending1, State1} = - process_pending(Pending, Limit - (ObtainCount + OpenCount), State), - State1 #fhc_state { open_pending = Pending1 }. - -process_obtain(State = #fhc_state { limit = Limit, - obtain_pending = Pending, - obtain_limit = ObtainLimit, - obtain_count = ObtainCount, - open_count = OpenCount }) -> - Quota = lists:min([ObtainLimit - ObtainCount, - Limit - (ObtainCount + OpenCount)]), - {Pending1, State1} = process_pending(Pending, Quota, State), - State1 #fhc_state { obtain_pending = Pending1 }. - -process_pending(Pending, Quota, State) when Quota =< 0 -> - {Pending, State}; -process_pending(Pending, Quota, State) -> - case pending_out(Pending) of - {empty, _Pending} -> - {Pending, State}; - {{value, #pending { requested = Requested }}, _Pending1} - when Requested > Quota -> - {Pending, State}; - {{value, #pending { requested = Requested } = Item}, Pending1} -> - process_pending(Pending1, Quota - Requested, - run_pending_item(Item, State)) - end. - -run_pending_item(#pending { kind = Kind, - pid = Pid, - requested = Requested, - from = From }, - State = #fhc_state { clients = Clients }) -> - gen_server:reply(From, ok), - true = ets:update_element(Clients, Pid, {#cstate.blocked, false}), - update_counts(Kind, Pid, Requested, State). - -update_counts(Kind, Pid, Delta, - State = #fhc_state { open_count = OpenCount, - obtain_count = ObtainCount, - clients = Clients }) -> - {OpenDelta, ObtainDelta} = update_counts1(Kind, Pid, Delta, Clients), - State #fhc_state { open_count = OpenCount + OpenDelta, - obtain_count = ObtainCount + ObtainDelta }. - -update_counts1(open, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.opened, Delta}), - {Delta, 0}; -update_counts1(obtain, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.obtained, Delta}), - {0, Delta}. - -maybe_reduce(State) -> - case needs_reduce(State) of - true -> reduce(State); - false -> State - end. - -needs_reduce(#fhc_state { limit = Limit, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_limit = ObtainLimit, - obtain_pending = ObtainPending }) -> - Limit =/= infinity - andalso ((OpenCount + ObtainCount > Limit) - orelse (not pending_is_empty(OpenPending)) - orelse (ObtainCount < ObtainLimit - andalso not pending_is_empty(ObtainPending))). - -reduce(State = #fhc_state { open_pending = OpenPending, - obtain_pending = ObtainPending, - elders = Elders, - clients = Clients, - timer_ref = TRef }) -> - Now = now(), - {CStates, Sum, ClientCount} = - dict:fold(fun (Pid, Eldest, {CStatesAcc, SumAcc, CountAcc} = Accs) -> - [#cstate { pending_closes = PendingCloses, - opened = Opened, - blocked = Blocked } = CState] = - ets:lookup(Clients, Pid), - case Blocked orelse PendingCloses =:= Opened of - true -> Accs; - false -> {[CState | CStatesAcc], - SumAcc + timer:now_diff(Now, Eldest), - CountAcc + 1} - end - end, {[], 0, 0}, Elders), - case CStates of - [] -> ok; - _ -> case (Sum / ClientCount) - - (1000 * ?FILE_HANDLES_CHECK_INTERVAL) of - AverageAge when AverageAge > 0 -> - notify_age(CStates, AverageAge); - _ -> - notify_age0(Clients, CStates, - pending_count(OpenPending) + - pending_count(ObtainPending)) - end - end, - case TRef of - undefined -> {ok, TRef1} = timer:apply_after( - ?FILE_HANDLES_CHECK_INTERVAL, - gen_server, cast, [?SERVER, check_counts]), - State #fhc_state { timer_ref = TRef1 }; - _ -> State - end. - -notify_age(CStates, AverageAge) -> - lists:foreach( - fun (#cstate { callback = undefined }) -> ok; - (#cstate { callback = {M, F, A} }) -> apply(M, F, A ++ [AverageAge]) - end, CStates). - -notify_age0(Clients, CStates, Required) -> - Notifications = - [CState || CState <- CStates, CState#cstate.callback =/= undefined], - {L1, L2} = lists:split(random:uniform(length(Notifications)), - Notifications), - notify(Clients, Required, L2 ++ L1). - -notify(_Clients, _Required, []) -> - ok; -notify(_Clients, Required, _Notifications) when Required =< 0 -> - ok; -notify(Clients, Required, [#cstate{ pid = Pid, - callback = {M, F, A}, - opened = Opened } | Notifications]) -> - apply(M, F, A ++ [0]), - ets:update_element(Clients, Pid, {#cstate.pending_closes, Opened}), - notify(Clients, Required - Opened, Notifications). - -track_client(Pid, Clients) -> - case ets:insert_new(Clients, #cstate { pid = Pid, - callback = undefined, - opened = 0, - obtained = 0, - blocked = false, - pending_closes = 0 }) of - true -> _MRef = erlang:monitor(process, Pid), - ok; - false -> ok - end. - -%% For all unices, assume ulimit exists. Further googling suggests -%% that BSDs (incl OS X), solaris and linux all agree that ulimit -n -%% is file handles -ulimit() -> - case os:type() of - {win32, _OsName} -> - ?FILE_HANDLES_LIMIT_WINDOWS; - {unix, _OsName} -> - %% Under Linux, Solaris and FreeBSD, ulimit is a shell - %% builtin, not a command. In OS X and AIX it's a command. - %% Fortunately, os:cmd invokes the cmd in a shell env, so - %% we're safe in all cases. - case os:cmd("ulimit -n") of - "unlimited" -> - infinity; - String = [C|_] when $0 =< C andalso C =< $9 -> - list_to_integer( - lists:takewhile( - fun (D) -> $0 =< D andalso D =< $9 end, String)); - _ -> - %% probably a variant of - %% "/bin/sh: line 1: ulimit: command not found\n" - unknown - end; - _ -> - unknown - end. diff --git a/src/gatherer.erl b/src/gatherer.erl deleted file mode 100644 index aa43e9a9..00000000 --- a/src/gatherer.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gatherer). - --behaviour(gen_server2). - --export([start_link/0, stop/1, fork/1, finish/1, in/2, out/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(stop/1 :: (pid()) -> 'ok'). --spec(fork/1 :: (pid()) -> 'ok'). --spec(finish/1 :: (pid()) -> 'ok'). --spec(in/2 :: (pid(), any()) -> 'ok'). --spec(out/1 :: (pid()) -> {'value', any()} | 'empty'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - --record(gstate, { forks, values, blocked }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link(?MODULE, [], [{timeout, infinity}]). - -stop(Pid) -> - gen_server2:call(Pid, stop, infinity). - -fork(Pid) -> - gen_server2:call(Pid, fork, infinity). - -finish(Pid) -> - gen_server2:cast(Pid, finish). - -in(Pid, Value) -> - gen_server2:cast(Pid, {in, Value}). - -out(Pid) -> - gen_server2:call(Pid, out, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #gstate { forks = 0, values = queue:new(), blocked = queue:new() }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; - -handle_call(fork, _From, State = #gstate { forks = Forks }) -> - {reply, ok, State #gstate { forks = Forks + 1 }, hibernate}; - -handle_call(out, From, State = #gstate { forks = Forks, - values = Values, - blocked = Blocked }) -> - case queue:out(Values) of - {empty, _} -> - case Forks of - 0 -> {reply, empty, State, hibernate}; - _ -> {noreply, - State #gstate { blocked = queue:in(From, Blocked) }, - hibernate} - end; - {{value, _Value} = V, NewValues} -> - {reply, V, State #gstate { values = NewValues }, hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast(finish, State = #gstate { forks = Forks, blocked = Blocked }) -> - NewForks = Forks - 1, - NewBlocked = case NewForks of - 0 -> [gen_server2:reply(From, empty) || - From <- queue:to_list(Blocked)], - queue:new(); - _ -> Blocked - end, - {noreply, State #gstate { forks = NewForks, blocked = NewBlocked }, - hibernate}; - -handle_cast({in, Value}, State = #gstate { values = Values, - blocked = Blocked }) -> - {noreply, case queue:out(Blocked) of - {empty, _} -> - State #gstate { values = queue:in(Value, Values) }; - {{value, From}, NewBlocked} -> - gen_server2:reply(From, {value, Value}), - State #gstate { blocked = NewBlocked } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. diff --git a/src/gen_server2.erl b/src/gen_server2.erl deleted file mode 100644 index a637dddd..00000000 --- a/src/gen_server2.erl +++ /dev/null @@ -1,1152 +0,0 @@ -%% This file is a copy of gen_server.erl from the R13B-1 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is gen_server2 -%% -%% 2) more efficient handling of selective receives in callbacks -%% gen_server2 processes drain their message queue into an internal -%% buffer before invoking any callback module functions. Messages are -%% dequeued from the buffer for processing. Thus the effective message -%% queue of a gen_server2 process is the concatenation of the internal -%% buffer and the real message queue. -%% As a result of the draining, any selective receive invoked inside a -%% callback is less likely to have to scan a large message queue. -%% -%% 3) gen_server2:cast is guaranteed to be order-preserving -%% The original code could reorder messages when communicating with a -%% process on a remote node that was not currently connected. -%% -%% 4) The callback module can optionally implement prioritise_call/3, -%% prioritise_cast/2 and prioritise_info/2. These functions take -%% Message, From and State or just Message and State and return a -%% single integer representing the priority attached to the message. -%% Messages with higher priorities are processed before requests with -%% lower priorities. The default priority is 0. -%% -%% 5) The callback module can optionally implement -%% handle_pre_hibernate/1 and handle_post_hibernate/1. These will be -%% called immediately prior to and post hibernation, respectively. If -%% handle_pre_hibernate returns {hibernate, NewState} then the process -%% will hibernate. If the module does not implement -%% handle_pre_hibernate/1 then the default action is to hibernate. -%% -%% 6) init can return a 4th arg, {backoff, InitialTimeout, -%% MinimumTimeout, DesiredHibernatePeriod} (all in -%% milliseconds). Then, on all callbacks which can return a timeout -%% (including init), timeout can be 'hibernate'. When this is the -%% case, the current timeout value will be used (initially, the -%% InitialTimeout supplied from init). After this timeout has -%% occurred, hibernation will occur as normal. Upon awaking, a new -%% current timeout value will be calculated. -%% -%% The purpose is that the gen_server2 takes care of adjusting the -%% current timeout value such that the process will increase the -%% timeout value repeatedly if it is unable to sleep for the -%% DesiredHibernatePeriod. If it is able to sleep for the -%% DesiredHibernatePeriod it will decrease the current timeout down to -%% the MinimumTimeout, so that the process is put to sleep sooner (and -%% hopefully stays asleep for longer). In short, should a process -%% using this receive a burst of messages, it should not hibernate -%% between those messages, but as the messages become less frequent, -%% the process will not only hibernate, it will do so sooner after -%% each message. -%% -%% When using this backoff mechanism, normal timeout values (i.e. not -%% 'hibernate') can still be used, and if they are used then the -%% handle_info(timeout, State) will be called as normal. In this case, -%% returning 'hibernate' from handle_info(timeout, State) will not -%% hibernate the process immediately, as it would if backoff wasn't -%% being used. Instead it'll wait for the current timeout as described -%% above. - -%% All modifications are (C) 2009-2011 VMware, Inc. - -%% ``The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved via the world wide web at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. -%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings -%% AB. All Rights Reserved.'' -%% -%% $Id$ -%% --module(gen_server2). - -%%% --------------------------------------------------- -%%% -%%% The idea behind THIS server is that the user module -%%% provides (different) functions to handle different -%%% kind of inputs. -%%% If the Parent process terminates the Module:terminate/2 -%%% function is called. -%%% -%%% The user module should export: -%%% -%%% init(Args) -%%% ==> {ok, State} -%%% {ok, State, Timeout} -%%% {ok, State, Timeout, Backoff} -%%% ignore -%%% {stop, Reason} -%%% -%%% handle_call(Msg, {From, Tag}, State) -%%% -%%% ==> {reply, Reply, State} -%%% {reply, Reply, State, Timeout} -%%% {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, Reply, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_cast(Msg, State) -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_info(Info, State) Info is e.g. {'EXIT', P, R}, {nodedown, N}, ... -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% terminate(Reason, State) Let the user module clean up -%%% always called when server terminates -%%% -%%% ==> ok -%%% -%%% handle_pre_hibernate(State) -%%% -%%% ==> {hibernate, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% handle_post_hibernate(State) -%%% -%%% ==> {noreply, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% The work flow (of the server) can be described as follows: -%%% -%%% User module Generic -%%% ----------- ------- -%%% start -----> start -%%% init <----- . -%%% -%%% loop -%%% handle_call <----- . -%%% -----> reply -%%% -%%% handle_cast <----- . -%%% -%%% handle_info <----- . -%%% -%%% terminate <----- . -%%% -%%% -----> reply -%%% -%%% -%%% --------------------------------------------------- - -%% API --export([start/3, start/4, - start_link/3, start_link/4, - call/2, call/3, - cast/2, reply/2, - abcast/2, abcast/3, - multi_call/2, multi_call/3, multi_call/4, - enter_loop/3, enter_loop/4, enter_loop/5, enter_loop/6, wake_hib/1]). - --export([behaviour_info/1]). - -%% System exports --export([system_continue/3, - system_terminate/4, - system_code_change/4, - format_status/2]). - -%% Internal exports --export([init_it/6]). - --import(error_logger, [format/2]). - -%% State record --record(gs2_state, {parent, name, state, mod, time, - timeout_state, queue, debug, prioritise_call, - prioritise_cast, prioritise_info}). - -%%%========================================================================= -%%% Specs. These exist only to shut up dialyzer's warnings -%%%========================================================================= - --ifdef(use_specs). - --type(gs2_state() :: #gs2_state{}). - --spec(handle_common_termination/3 :: - (any(), atom(), gs2_state()) -> no_return()). --spec(hibernate/1 :: (gs2_state()) -> no_return()). --spec(pre_hibernate/1 :: (gs2_state()) -> no_return()). --spec(system_terminate/4 :: (_, _, _, gs2_state()) -> no_return()). - --endif. - -%%%========================================================================= -%%% API -%%%========================================================================= - -behaviour_info(callbacks) -> - [{init,1},{handle_call,3},{handle_cast,2},{handle_info,2}, - {terminate,2},{code_change,3}]; -behaviour_info(_Other) -> - undefined. - -%%% ----------------------------------------------------------------- -%%% Starts a generic server. -%%% start(Mod, Args, Options) -%%% start(Name, Mod, Args, Options) -%%% start_link(Mod, Args, Options) -%%% start_link(Name, Mod, Args, Options) where: -%%% Name ::= {local, atom()} | {global, atom()} -%%% Mod ::= atom(), callback module implementing the 'real' server -%%% Args ::= term(), init arguments (to Mod:init/1) -%%% Options ::= [{timeout, Timeout} | {debug, [Flag]}] -%%% Flag ::= trace | log | {logfile, File} | statistics | debug -%%% (debug == log && statistics) -%%% Returns: {ok, Pid} | -%%% {error, {already_started, Pid}} | -%%% {error, Reason} -%%% ----------------------------------------------------------------- -start(Mod, Args, Options) -> - gen:start(?MODULE, nolink, Mod, Args, Options). - -start(Name, Mod, Args, Options) -> - gen:start(?MODULE, nolink, Name, Mod, Args, Options). - -start_link(Mod, Args, Options) -> - gen:start(?MODULE, link, Mod, Args, Options). - -start_link(Name, Mod, Args, Options) -> - gen:start(?MODULE, link, Name, Mod, Args, Options). - - -%% ----------------------------------------------------------------- -%% Make a call to a generic server. -%% If the server is located at another node, that node will -%% be monitored. -%% If the client is trapping exits and is linked server termination -%% is handled here (? Shall we do that here (or rely on timeouts) ?). -%% ----------------------------------------------------------------- -call(Name, Request) -> - case catch gen:call(Name, '$gen_call', Request) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request]}}) - end. - -call(Name, Request, Timeout) -> - case catch gen:call(Name, '$gen_call', Request, Timeout) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request, Timeout]}}) - end. - -%% ----------------------------------------------------------------- -%% Make a cast to a generic server. -%% ----------------------------------------------------------------- -cast({global,Name}, Request) -> - catch global:send(Name, cast_msg(Request)), - ok; -cast({Name,Node}=Dest, Request) when is_atom(Name), is_atom(Node) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_atom(Dest) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_pid(Dest) -> - do_cast(Dest, Request). - -do_cast(Dest, Request) -> - do_send(Dest, cast_msg(Request)), - ok. - -cast_msg(Request) -> {'$gen_cast',Request}. - -%% ----------------------------------------------------------------- -%% Send a reply to the client. -%% ----------------------------------------------------------------- -reply({To, Tag}, Reply) -> - catch To ! {Tag, Reply}. - -%% ----------------------------------------------------------------- -%% Asyncronous broadcast, returns nothing, it's just send'n pray -%% ----------------------------------------------------------------- -abcast(Name, Request) when is_atom(Name) -> - do_abcast([node() | nodes()], Name, cast_msg(Request)). - -abcast(Nodes, Name, Request) when is_list(Nodes), is_atom(Name) -> - do_abcast(Nodes, Name, cast_msg(Request)). - -do_abcast([Node|Nodes], Name, Msg) when is_atom(Node) -> - do_send({Name,Node},Msg), - do_abcast(Nodes, Name, Msg); -do_abcast([], _,_) -> abcast. - -%%% ----------------------------------------------------------------- -%%% Make a call to servers at several nodes. -%%% Returns: {[Replies],[BadNodes]} -%%% A Timeout can be given -%%% -%%% A middleman process is used in case late answers arrives after -%%% the timeout. If they would be allowed to glog the callers message -%%% queue, it would probably become confused. Late answers will -%%% now arrive to the terminated middleman and so be discarded. -%%% ----------------------------------------------------------------- -multi_call(Name, Req) - when is_atom(Name) -> - do_multi_call([node() | nodes()], Name, Req, infinity). - -multi_call(Nodes, Name, Req) - when is_list(Nodes), is_atom(Name) -> - do_multi_call(Nodes, Name, Req, infinity). - -multi_call(Nodes, Name, Req, infinity) -> - do_multi_call(Nodes, Name, Req, infinity); -multi_call(Nodes, Name, Req, Timeout) - when is_list(Nodes), is_atom(Name), is_integer(Timeout), Timeout >= 0 -> - do_multi_call(Nodes, Name, Req, Timeout). - - -%%----------------------------------------------------------------- -%% enter_loop(Mod, Options, State, , , ) ->_ -%% -%% Description: Makes an existing process into a gen_server. -%% The calling process will enter the gen_server receive -%% loop and become a gen_server process. -%% The process *must* have been started using one of the -%% start functions in proc_lib, see proc_lib(3). -%% The user is responsible for any initialization of the -%% process, including registering a name for it. -%%----------------------------------------------------------------- -enter_loop(Mod, Options, State) -> - enter_loop(Mod, Options, State, self(), infinity, undefined). - -enter_loop(Mod, Options, State, Backoff = {backoff, _, _ , _}) -> - enter_loop(Mod, Options, State, self(), infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName = {_, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, undefined); - -enter_loop(Mod, Options, State, Timeout) -> - enter_loop(Mod, Options, State, self(), Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Backoff = {backoff, _, _, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName, Timeout) -> - enter_loop(Mod, Options, State, ServerName, Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Timeout, Backoff) -> - Name = get_proc_name(ServerName), - Parent = get_parent(), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - Backoff1 = extend_backoff(Backoff), - loop(find_prioritisers( - #gs2_state { parent = Parent, name = Name, state = State, - mod = Mod, time = Timeout, timeout_state = Backoff1, - queue = Queue, debug = Debug })). - -%%%======================================================================== -%%% Gen-callback functions -%%%======================================================================== - -%%% --------------------------------------------------- -%%% Initiate the new process. -%%% Register the name using the Rfunc function -%%% Calls the Mod:init/Args function. -%%% Finally an acknowledge is sent to Parent and the main -%%% loop is entered. -%%% --------------------------------------------------- -init_it(Starter, self, Name, Mod, Args, Options) -> - init_it(Starter, self(), Name, Mod, Args, Options); -init_it(Starter, Parent, Name0, Mod, Args, Options) -> - Name = name(Name0), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - GS2State = find_prioritisers( - #gs2_state { parent = Parent, - name = Name, - mod = Mod, - queue = Queue, - debug = Debug }), - case catch Mod:init(Args) of - {ok, State} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = infinity, - timeout_state = undefined }); - {ok, State, Timeout} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = undefined }); - {ok, State, Timeout, Backoff = {backoff, _, _, _}} -> - Backoff1 = extend_backoff(Backoff), - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = Backoff1 }); - {stop, Reason} -> - %% For consistency, we must make sure that the - %% registered name (if any) is unregistered before - %% the parent process is notified about the failure. - %% (Otherwise, the parent process could get - %% an 'already_started' error if it immediately - %% tried starting the process again.) - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - ignore -> - unregister_name(Name0), - proc_lib:init_ack(Starter, ignore), - exit(normal); - {'EXIT', Reason} -> - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - Else -> - Error = {bad_return_value, Else}, - proc_lib:init_ack(Starter, {error, Error}), - exit(Error) - end. - -name({local,Name}) -> Name; -name({global,Name}) -> Name; -%% name(Pid) when is_pid(Pid) -> Pid; -%% when R12 goes away, drop the line beneath and uncomment the line above -name(Name) -> Name. - -unregister_name({local,Name}) -> - _ = (catch unregister(Name)); -unregister_name({global,Name}) -> - _ = global:unregister_name(Name); -unregister_name(Pid) when is_pid(Pid) -> - Pid; -% Under R12 let's just ignore it, as we have a single term as Name. -% On R13 it will never get here, as we get tuple with 'local/global' atom. -unregister_name(_Name) -> ok. - -extend_backoff(undefined) -> - undefined; -extend_backoff({backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod}) -> - {backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod, now()}. - -%%%======================================================================== -%%% Internal functions -%%%======================================================================== -%%% --------------------------------------------------- -%%% The MAIN loop. -%%% --------------------------------------------------- -loop(GS2State = #gs2_state { time = hibernate, - timeout_state = undefined }) -> - pre_hibernate(GS2State); -loop(GS2State) -> - process_next_msg(drain(GS2State)). - -drain(GS2State) -> - receive - Input -> drain(in(Input, GS2State)) - after 0 -> GS2State - end. - -process_next_msg(GS2State = #gs2_state { time = Time, - timeout_state = TimeoutState, - queue = Queue }) -> - case priority_queue:out(Queue) of - {{value, Msg}, Queue1} -> - process_msg(Msg, GS2State #gs2_state { queue = Queue1 }); - {empty, Queue1} -> - {Time1, HibOnTimeout} - = case {Time, TimeoutState} of - {hibernate, {backoff, Current, _Min, _Desired, _RSt}} -> - {Current, true}; - {hibernate, _} -> - %% wake_hib/7 will set Time to hibernate. If - %% we were woken and didn't receive a msg - %% then we will get here and need a sensible - %% value for Time1, otherwise we crash. - %% R13B1 always waits infinitely when waking - %% from hibernation, so that's what we do - %% here too. - {infinity, false}; - _ -> {Time, false} - end, - receive - Input -> - %% Time could be 'hibernate' here, so *don't* call loop - process_next_msg( - drain(in(Input, GS2State #gs2_state { queue = Queue1 }))) - after Time1 -> - case HibOnTimeout of - true -> - pre_hibernate( - GS2State #gs2_state { queue = Queue1 }); - false -> - process_msg(timeout, - GS2State #gs2_state { queue = Queue1 }) - end - end - end. - -wake_hib(GS2State = #gs2_state { timeout_state = TS }) -> - TimeoutState1 = case TS of - undefined -> - undefined; - {SleptAt, TimeoutState} -> - adjust_timeout_state(SleptAt, now(), TimeoutState) - end, - post_hibernate( - drain(GS2State #gs2_state { timeout_state = TimeoutState1 })). - -hibernate(GS2State = #gs2_state { timeout_state = TimeoutState }) -> - TS = case TimeoutState of - undefined -> undefined; - {backoff, _, _, _, _} -> {now(), TimeoutState} - end, - proc_lib:hibernate(?MODULE, wake_hib, - [GS2State #gs2_state { timeout_state = TS }]). - -pre_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_pre_hibernate, 1) of - true -> - case catch Mod:handle_pre_hibernate(State) of - {hibernate, NState} -> - hibernate(GS2State #gs2_state { state = NState } ); - Reply -> - handle_common_termination(Reply, pre_hibernate, GS2State) - end; - false -> - hibernate(GS2State) - end. - -post_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_post_hibernate, 1) of - true -> - case catch Mod:handle_post_hibernate(State) of - {noreply, NState} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = infinity }); - {noreply, NState, Time} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = Time }); - Reply -> - handle_common_termination(Reply, post_hibernate, GS2State) - end; - false -> - %% use hibernate here, not infinity. This matches - %% R13B. The key is that we should be able to get through - %% to process_msg calling sys:handle_system_msg with Time - %% still set to hibernate, iff that msg is the very msg - %% that woke us up (or the first msg we receive after - %% waking up). - process_next_msg(GS2State #gs2_state { time = hibernate }) - end. - -adjust_timeout_state(SleptAt, AwokeAt, {backoff, CurrentTO, MinimumTO, - DesiredHibPeriod, RandomState}) -> - NapLengthMicros = timer:now_diff(AwokeAt, SleptAt), - CurrentMicros = CurrentTO * 1000, - MinimumMicros = MinimumTO * 1000, - DesiredHibMicros = DesiredHibPeriod * 1000, - GapBetweenMessagesMicros = NapLengthMicros + CurrentMicros, - Base = - %% If enough time has passed between the last two messages then we - %% should consider sleeping sooner. Otherwise stay awake longer. - case GapBetweenMessagesMicros > (MinimumMicros + DesiredHibMicros) of - true -> lists:max([MinimumTO, CurrentTO div 2]); - false -> CurrentTO - end, - {Extra, RandomState1} = random:uniform_s(Base, RandomState), - CurrentTO1 = Base + Extra, - {backoff, CurrentTO1, MinimumTO, DesiredHibPeriod, RandomState1}. - -in({'$gen_cast', Msg}, GS2State = #gs2_state { prioritise_cast = PC, - queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - {'$gen_cast', Msg}, - PC(Msg, GS2State), Queue) }; -in({'$gen_call', From, Msg}, GS2State = #gs2_state { prioritise_call = PC, - queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - {'$gen_call', From, Msg}, - PC(Msg, From, GS2State), Queue) }; -in(Input, GS2State = #gs2_state { prioritise_info = PI, queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - Input, PI(Input, GS2State), Queue) }. - -process_msg(Msg, - GS2State = #gs2_state { parent = Parent, - name = Name, - debug = Debug }) -> - case Msg of - {system, From, Req} -> - sys:handle_system_msg( - Req, From, Parent, ?MODULE, Debug, - GS2State); - %% gen_server puts Hib on the end as the 7th arg, but that - %% version of the function seems not to be documented so - %% leaving out for now. - {'EXIT', Parent, Reason} -> - terminate(Reason, Msg, GS2State); - _Msg when Debug =:= [] -> - handle_msg(Msg, GS2State); - _Msg -> - Debug1 = sys:handle_debug(Debug, fun print_event/3, - Name, {in, Msg}), - handle_msg(Msg, GS2State #gs2_state { debug = Debug1 }) - end. - -%%% --------------------------------------------------- -%%% Send/recive functions -%%% --------------------------------------------------- -do_send(Dest, Msg) -> - catch erlang:send(Dest, Msg). - -do_multi_call(Nodes, Name, Req, infinity) -> - Tag = make_ref(), - Monitors = send_nodes(Nodes, Name, Tag, Req), - rec_nodes(Tag, Monitors, Name, undefined); -do_multi_call(Nodes, Name, Req, Timeout) -> - Tag = make_ref(), - Caller = self(), - Receiver = - spawn( - fun () -> - %% Middleman process. Should be unsensitive to regular - %% exit signals. The sychronization is needed in case - %% the receiver would exit before the caller started - %% the monitor. - process_flag(trap_exit, true), - Mref = erlang:monitor(process, Caller), - receive - {Caller,Tag} -> - Monitors = send_nodes(Nodes, Name, Tag, Req), - TimerId = erlang:start_timer(Timeout, self(), ok), - Result = rec_nodes(Tag, Monitors, Name, TimerId), - exit({self(),Tag,Result}); - {'DOWN',Mref,_,_,_} -> - %% Caller died before sending us the go-ahead. - %% Give up silently. - exit(normal) - end - end), - Mref = erlang:monitor(process, Receiver), - Receiver ! {self(),Tag}, - receive - {'DOWN',Mref,_,_,{Receiver,Tag,Result}} -> - Result; - {'DOWN',Mref,_,_,Reason} -> - %% The middleman code failed. Or someone did - %% exit(_, kill) on the middleman process => Reason==killed - exit(Reason) - end. - -send_nodes(Nodes, Name, Tag, Req) -> - send_nodes(Nodes, Name, Tag, Req, []). - -send_nodes([Node|Tail], Name, Tag, Req, Monitors) - when is_atom(Node) -> - Monitor = start_monitor(Node, Name), - %% Handle non-existing names in rec_nodes. - catch {Name, Node} ! {'$gen_call', {self(), {Tag, Node}}, Req}, - send_nodes(Tail, Name, Tag, Req, [Monitor | Monitors]); -send_nodes([_Node|Tail], Name, Tag, Req, Monitors) -> - %% Skip non-atom Node - send_nodes(Tail, Name, Tag, Req, Monitors); -send_nodes([], _Name, _Tag, _Req, Monitors) -> - Monitors. - -%% Against old nodes: -%% If no reply has been delivered within 2 secs. (per node) check that -%% the server really exists and wait for ever for the answer. -%% -%% Against contemporary nodes: -%% Wait for reply, server 'DOWN', or timeout from TimerId. - -rec_nodes(Tag, Nodes, Name, TimerId) -> - rec_nodes(Tag, Nodes, Name, [], [], 2000, TimerId). - -rec_nodes(Tag, [{N,R}|Tail], Name, Badnodes, Replies, Time, TimerId ) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, Time, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], Time, TimerId); - {timeout, TimerId, _} -> - unmonitor(R), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes(Tag, [N|Tail], Name, Badnodes, Replies, Time, TimerId) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, 2000, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], 2000, TimerId); - {timeout, TimerId, _} -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N | Badnodes], Replies) - after Time -> - case rpc:call(N, erlang, whereis, [Name]) of - Pid when is_pid(Pid) -> % It exists try again. - rec_nodes(Tag, [N|Tail], Name, Badnodes, - Replies, infinity, TimerId); - _ -> % badnode - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], - Replies, 2000, TimerId) - end - end; -rec_nodes(_, [], _, Badnodes, Replies, _, TimerId) -> - case catch erlang:cancel_timer(TimerId) of - false -> % It has already sent it's message - receive - {timeout, TimerId, _} -> ok - after 0 -> - ok - end; - _ -> % Timer was cancelled, or TimerId was 'undefined' - ok - end, - {Replies, Badnodes}. - -%% Collect all replies that already have arrived -rec_nodes_rest(Tag, [{N,R}|Tail], Name, Badnodes, Replies) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(Tag, [N|Tail], Name, Badnodes, Replies) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(_Tag, [], _Name, Badnodes, Replies) -> - {Replies, Badnodes}. - - -%%% --------------------------------------------------- -%%% Monitor functions -%%% --------------------------------------------------- - -start_monitor(Node, Name) when is_atom(Node), is_atom(Name) -> - if node() =:= nonode@nohost, Node =/= nonode@nohost -> - Ref = make_ref(), - self() ! {'DOWN', Ref, process, {Name, Node}, noconnection}, - {Node, Ref}; - true -> - case catch erlang:monitor(process, {Name, Node}) of - {'EXIT', _} -> - %% Remote node is R6 - monitor_node(Node, true), - Node; - Ref when is_reference(Ref) -> - {Node, Ref} - end - end. - -%% Cancels a monitor started with Ref=erlang:monitor(_, _). -unmonitor(Ref) when is_reference(Ref) -> - erlang:demonitor(Ref), - receive - {'DOWN', Ref, _, _, _} -> - true - after 0 -> - true - end. - -%%% --------------------------------------------------- -%%% Message handling functions -%%% --------------------------------------------------- - -dispatch({'$gen_cast', Msg}, Mod, State) -> - Mod:handle_cast(Msg, State); -dispatch(Info, Mod, State) -> - Mod:handle_info(Info, State). - -common_reply(_Name, From, Reply, _NState, [] = _Debug) -> - reply(From, Reply), - []; -common_reply(Name, From, Reply, NState, Debug) -> - reply(Name, From, Reply, NState, Debug). - -common_debug([] = _Debug, _Func, _Info, _Event) -> - []; -common_debug(Debug, Func, Info, Event) -> - sys:handle_debug(Debug, Func, Info, Event). - -handle_msg({'$gen_call', From, Msg}, GS2State = #gs2_state { mod = Mod, - state = State, - name = Name, - debug = Debug }) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {reply, Reply, NState, Time1} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1}); - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = infinity, - debug = Debug1}); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = Time1, - debug = Debug1}); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Msg, - GS2State #gs2_state { state = NState })), - reply(Name, From, Reply, NState, Debug), - exit(R); - Other -> - handle_common_reply(Other, Msg, GS2State) - end; -handle_msg(Msg, GS2State = #gs2_state { mod = Mod, state = State }) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, Msg, GS2State). - -handle_common_reply(Reply, Msg, GS2State = #gs2_state { name = Name, - debug = Debug}) -> - case Reply of - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1 }); - _ -> - handle_common_termination(Reply, Msg, GS2State) - end. - -handle_common_termination(Reply, Msg, GS2State) -> - case Reply of - {stop, Reason, NState} -> - terminate(Reason, Msg, GS2State #gs2_state { state = NState }); - {'EXIT', What} -> - terminate(What, Msg, GS2State); - _ -> - terminate({bad_return_value, Reply}, Msg, GS2State) - end. - -reply(Name, {To, Tag}, Reply, State, Debug) -> - reply({To, Tag}, Reply), - sys:handle_debug( - Debug, fun print_event/3, Name, {out, Reply, To, State}). - - -%%----------------------------------------------------------------- -%% Callback functions for system messages handling. -%%----------------------------------------------------------------- -system_continue(Parent, Debug, GS2State) -> - loop(GS2State #gs2_state { parent = Parent, debug = Debug }). - -system_terminate(Reason, _Parent, Debug, GS2State) -> - terminate(Reason, [], GS2State #gs2_state { debug = Debug }). - -system_code_change(GS2State = #gs2_state { mod = Mod, - state = State }, - _Module, OldVsn, Extra) -> - case catch Mod:code_change(OldVsn, State, Extra) of - {ok, NewState} -> - NewGS2State = find_prioritisers( - GS2State #gs2_state { state = NewState }), - {ok, [NewGS2State]}; - Else -> - Else - end. - -%%----------------------------------------------------------------- -%% Format debug messages. Print them as the call-back module sees -%% them, not as the real erlang messages. Use trace for that. -%%----------------------------------------------------------------- -print_event(Dev, {in, Msg}, Name) -> - case Msg of - {'$gen_call', {From, _Tag}, Call} -> - io:format(Dev, "*DBG* ~p got call ~p from ~w~n", - [Name, Call, From]); - {'$gen_cast', Cast} -> - io:format(Dev, "*DBG* ~p got cast ~p~n", - [Name, Cast]); - _ -> - io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg]) - end; -print_event(Dev, {out, Msg, To, State}, Name) -> - io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n", - [Name, Msg, To, State]); -print_event(Dev, {noreply, State}, Name) -> - io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]); -print_event(Dev, Event, Name) -> - io:format(Dev, "*DBG* ~p dbg ~p~n", [Name, Event]). - - -%%% --------------------------------------------------- -%%% Terminate the server. -%%% --------------------------------------------------- - -terminate(Reason, Msg, #gs2_state { name = Name, - mod = Mod, - state = State, - debug = Debug }) -> - case catch Mod:terminate(Reason, State) of - {'EXIT', R} -> - error_info(R, Reason, Name, Msg, State, Debug), - exit(R); - _ -> - case Reason of - normal -> - exit(normal); - shutdown -> - exit(shutdown); - {shutdown,_}=Shutdown -> - exit(Shutdown); - _ -> - error_info(Reason, undefined, Name, Msg, State, Debug), - exit(Reason) - end - end. - -error_info(_Reason, _RootCause, application_controller, _Msg, _State, _Debug) -> - %% OTP-5811 Don't send an error report if it's the system process - %% application_controller which is terminating - let init take care - %% of it instead - ok; -error_info(Reason, RootCause, Name, Msg, State, Debug) -> - Reason1 = error_reason(Reason), - Fmt = - "** Generic server ~p terminating~n" - "** Last message in was ~p~n" - "** When Server state == ~p~n" - "** Reason for termination == ~n** ~p~n", - case RootCause of - undefined -> format(Fmt, [Name, Msg, State, Reason1]); - _ -> format(Fmt ++ "** In 'terminate' callback " - "with reason ==~n** ~p~n", - [Name, Msg, State, Reason1, - error_reason(RootCause)]) - end, - sys:print_log(Debug), - ok. - -error_reason({undef,[{M,F,A}|MFAs]} = Reason) -> - case code:is_loaded(M) of - false -> {'module could not be loaded',[{M,F,A}|MFAs]}; - _ -> case erlang:function_exported(M, F, length(A)) of - true -> Reason; - false -> {'function not exported',[{M,F,A}|MFAs]} - end - end; -error_reason(Reason) -> - Reason. - -%%% --------------------------------------------------- -%%% Misc. functions. -%%% --------------------------------------------------- - -opt(Op, [{Op, Value}|_]) -> - {ok, Value}; -opt(Op, [_|Options]) -> - opt(Op, Options); -opt(_, []) -> - false. - -debug_options(Name, Opts) -> - case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) - end. - -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). - -dbg_opts(Name, Opts) -> - case catch sys:debug_options(Opts) of - {'EXIT',_} -> - format("~p: ignoring erroneous debug options - ~p~n", - [Name, Opts]), - []; - Dbg -> - Dbg - end. - -get_proc_name(Pid) when is_pid(Pid) -> - Pid; -get_proc_name({local, Name}) -> - case process_info(self(), registered_name) of - {registered_name, Name} -> - Name; - {registered_name, _Name} -> - exit(process_not_registered); - [] -> - exit(process_not_registered) - end; -get_proc_name({global, Name}) -> - case global:safe_whereis_name(Name) of - undefined -> - exit(process_not_registered_globally); - Pid when Pid =:= self() -> - Name; - _Pid -> - exit(process_not_registered_globally) - end. - -get_parent() -> - case get('$ancestors') of - [Parent | _] when is_pid(Parent)-> - Parent; - [Parent | _] when is_atom(Parent)-> - name_to_pid(Parent); - _ -> - exit(process_was_not_started_by_proc_lib) - end. - -name_to_pid(Name) -> - case whereis(Name) of - undefined -> - case global:safe_whereis_name(Name) of - undefined -> - exit(could_not_find_registerd_name); - Pid -> - Pid - end; - Pid -> - Pid - end. - -find_prioritisers(GS2State = #gs2_state { mod = Mod }) -> - PrioriCall = function_exported_or_default( - Mod, 'prioritise_call', 3, - fun (_Msg, _From, _State) -> 0 end), - PrioriCast = function_exported_or_default(Mod, 'prioritise_cast', 2, - fun (_Msg, _State) -> 0 end), - PrioriInfo = function_exported_or_default(Mod, 'prioritise_info', 2, - fun (_Msg, _State) -> 0 end), - GS2State #gs2_state { prioritise_call = PrioriCall, - prioritise_cast = PrioriCast, - prioritise_info = PrioriInfo }. - -function_exported_or_default(Mod, Fun, Arity, Default) -> - case erlang:function_exported(Mod, Fun, Arity) of - true -> case Arity of - 2 -> fun (Msg, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end; - 3 -> fun (Msg, From, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, From, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end - end; - false -> Default - end. - -%%----------------------------------------------------------------- -%% Status information -%%----------------------------------------------------------------- -format_status(Opt, StatusData) -> - [PDict, SysState, Parent, Debug, - #gs2_state{name = Name, state = State, mod = Mod, queue = Queue}] = - StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), - Log = sys:get_debug(log, Debug, []), - Specfic = - case erlang:function_exported(Mod, format_status, 2) of - true -> case catch Mod:format_status(Opt, [PDict, State]) of - {'EXIT', _} -> [{data, [{"State", State}]}]; - Else -> Else - end; - _ -> [{data, [{"State", State}]}] - end, - [{header, Header}, - {data, [{"Status", SysState}, - {"Parent", Parent}, - {"Logged events", Log}, - {"Queued messages", priority_queue:to_list(Queue)}]} | - Specfic]. diff --git a/src/pg_local.erl b/src/pg_local.erl deleted file mode 100644 index fd515747..00000000 --- a/src/pg_local.erl +++ /dev/null @@ -1,213 +0,0 @@ -%% This file is a copy of pg2.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) Process groups are node-local only. -%% -%% 2) Groups are created/deleted implicitly. -%% -%% 3) 'join' and 'leave' are asynchronous. -%% -%% 4) the type specs of the exported non-callback functions have been -%% extracted into a separate, guarded section, and rewritten in -%% old-style spec syntax, for better compatibility with older -%% versions of Erlang/OTP. The remaining type specs have been -%% removed. - -%% All modifications are (C) 2010-2011 VMware, Inc. - -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(pg_local). - --export([join/2, leave/2, get_members/1]). --export([sync/0]). %% intended for testing only; not part of official API --export([start/0, start_link/0, init/1, handle_call/3, handle_cast/2, - handle_info/2, terminate/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(name() :: term()). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(join/2 :: (name(), pid()) -> 'ok'). --spec(leave/2 :: (name(), pid()) -> 'ok'). --spec(get_members/1 :: (name()) -> [pid()]). - --spec(sync/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%%% As of R13B03 monitors are used instead of links. - -%%% -%%% Exported functions -%%% - -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). - -start() -> - ensure_started(). - -join(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {join, Name, Pid}). - -leave(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {leave, Name, Pid}). - -get_members(Name) -> - ensure_started(), - group_members(Name). - -sync() -> - ensure_started(), - gen_server:call(?MODULE, sync). - -%%% -%%% Callback functions from gen_server -%%% - --record(state, {}). - -init([]) -> - pg_local_table = ets:new(pg_local_table, [ordered_set, protected, named_table]), - {ok, #state{}}. - -handle_call(sync, _From, S) -> - {reply, ok, S}; - -handle_call(Request, From, S) -> - error_logger:warning_msg("The pg_local server received an unexpected message:\n" - "handle_call(~p, ~p, _)\n", - [Request, From]), - {noreply, S}. - -handle_cast({join, Name, Pid}, S) -> - join_group(Name, Pid), - {noreply, S}; -handle_cast({leave, Name, Pid}, S) -> - leave_group(Name, Pid), - {noreply, S}; -handle_cast(_, S) -> - {noreply, S}. - -handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S) -> - member_died(MonitorRef), - {noreply, S}; -handle_info(_, S) -> - {noreply, S}. - -terminate(_Reason, _S) -> - true = ets:delete(pg_local_table), - ok. - -%%% -%%% Local functions -%%% - -%%% One ETS table, pg_local_table, is used for bookkeeping. The type of the -%%% table is ordered_set, and the fast matching of partially -%%% instantiated keys is used extensively. -%%% -%%% {{ref, Pid}, MonitorRef, Counter} -%%% {{ref, MonitorRef}, Pid} -%%% Each process has one monitor. Counter is incremented when the -%%% Pid joins some group. -%%% {{member, Name, Pid}, _} -%%% Pid is a member of group Name, GroupCounter is incremented when the -%%% Pid joins the group Name. -%%% {{pid, Pid, Name}} -%%% Pid is a member of group Name. - -member_died(Ref) -> - [{{ref, Ref}, Pid}] = ets:lookup(pg_local_table, {ref, Ref}), - Names = member_groups(Pid), - _ = [leave_group(Name, P) || - Name <- Names, - P <- member_in_group(Pid, Name)], - ok. - -join_group(Name, Pid) -> - Ref_Pid = {ref, Pid}, - try _ = ets:update_counter(pg_local_table, Ref_Pid, {3, +1}) - catch _:_ -> - Ref = erlang:monitor(process, Pid), - true = ets:insert(pg_local_table, {Ref_Pid, Ref, 1}), - true = ets:insert(pg_local_table, {{ref, Ref}, Pid}) - end, - Member_Name_Pid = {member, Name, Pid}, - try _ = ets:update_counter(pg_local_table, Member_Name_Pid, {2, +1}) - catch _:_ -> - true = ets:insert(pg_local_table, {Member_Name_Pid, 1}), - true = ets:insert(pg_local_table, {{pid, Pid, Name}}) - end. - -leave_group(Name, Pid) -> - Member_Name_Pid = {member, Name, Pid}, - try ets:update_counter(pg_local_table, Member_Name_Pid, {2, -1}) of - N -> - if - N =:= 0 -> - true = ets:delete(pg_local_table, {pid, Pid, Name}), - true = ets:delete(pg_local_table, Member_Name_Pid); - true -> - ok - end, - Ref_Pid = {ref, Pid}, - case ets:update_counter(pg_local_table, Ref_Pid, {3, -1}) of - 0 -> - [{Ref_Pid,Ref,0}] = ets:lookup(pg_local_table, Ref_Pid), - true = ets:delete(pg_local_table, {ref, Ref}), - true = ets:delete(pg_local_table, Ref_Pid), - true = erlang:demonitor(Ref, [flush]), - ok; - _ -> - ok - end - catch _:_ -> - ok - end. - -group_members(Name) -> - [P || - [P, N] <- ets:match(pg_local_table, {{member, Name, '$1'},'$2'}), - _ <- lists:seq(1, N)]. - -member_in_group(Pid, Name) -> - [{{member, Name, Pid}, N}] = ets:lookup(pg_local_table, {member, Name, Pid}), - lists:duplicate(N, Pid). - -member_groups(Pid) -> - [Name || [Name] <- ets:match(pg_local_table, {{pid, Pid, '$1'}})]. - -ensure_started() -> - case whereis(?MODULE) of - undefined -> - C = {pg_local, {?MODULE, start_link, []}, permanent, - 16#ffffffff, worker, [?MODULE]}, - supervisor:start_child(kernel_safe_sup, C); - PgLocalPid -> - {ok, PgLocalPid} - end. diff --git a/src/priority_queue.erl b/src/priority_queue.erl deleted file mode 100644 index 4a94b24b..00000000 --- a/src/priority_queue.erl +++ /dev/null @@ -1,176 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% Priority queues have essentially the same interface as ordinary -%% queues, except that a) there is an in/3 that takes a priority, and -%% b) we have only implemented the core API we need. -%% -%% Priorities should be integers - the higher the value the higher the -%% priority - but we don't actually check that. -%% -%% in/2 inserts items with priority 0. -%% -%% We optimise the case where a priority queue is being used just like -%% an ordinary queue. When that is the case we represent the priority -%% queue as an ordinary queue. We could just call into the 'queue' -%% module for that, but for efficiency we implement the relevant -%% functions directly in here, thus saving on inter-module calls and -%% eliminating a level of boxing. -%% -%% When the queue contains items with non-zero priorities, it is -%% represented as a sorted kv list with the inverted Priority as the -%% key and an ordinary queue as the value. Here again we use our own -%% ordinary queue implemention for efficiency, often making recursive -%% calls into the same function knowing that ordinary queues represent -%% a base case. - - --module(priority_queue). - --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(priority() :: integer()). --type(squeue() :: {queue, [any()], [any()]}). --type(pqueue() :: squeue() | {pqueue, [{priority(), squeue()}]}). - --spec(new/0 :: () -> pqueue()). --spec(is_queue/1 :: (any()) -> boolean()). --spec(is_empty/1 :: (pqueue()) -> boolean()). --spec(len/1 :: (pqueue()) -> non_neg_integer()). --spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). --spec(in/2 :: (any(), pqueue()) -> pqueue()). --spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> - {queue, [], []}. - -is_queue({queue, R, F}) when is_list(R), is_list(F) -> - true; -is_queue({pqueue, Queues}) when is_list(Queues) -> - lists:all(fun ({P, Q}) -> is_integer(P) andalso is_queue(Q) end, - Queues); -is_queue(_) -> - false. - -is_empty({queue, [], []}) -> - true; -is_empty(_) -> - false. - -len({queue, R, F}) when is_list(R), is_list(F) -> - length(R) + length(F); -len({pqueue, Queues}) -> - lists:sum([len(Q) || {_, Q} <- Queues]). - -to_list({queue, In, Out}) when is_list(In), is_list(Out) -> - [{0, V} || V <- Out ++ lists:reverse(In, [])]; -to_list({pqueue, Queues}) -> - [{-P, V} || {P, Q} <- Queues, {0, V} <- to_list(Q)]. - -in(Item, Q) -> - in(Item, 0, Q). - -in(X, 0, {queue, [_] = In, []}) -> - {queue, [X], In}; -in(X, 0, {queue, In, Out}) when is_list(In), is_list(Out) -> - {queue, [X|In], Out}; -in(X, Priority, _Q = {queue, [], []}) -> - in(X, Priority, {pqueue, []}); -in(X, Priority, Q = {queue, _, _}) -> - in(X, Priority, {pqueue, [{0, Q}]}); -in(X, Priority, {pqueue, Queues}) -> - P = -Priority, - {pqueue, case lists:keysearch(P, 1, Queues) of - {value, {_, Q}} -> - lists:keyreplace(P, 1, Queues, {P, in(X, Q)}); - false -> - lists:keysort(1, [{P, {queue, [X], []}} | Queues]) - end}. - -out({queue, [], []} = Q) -> - {empty, Q}; -out({queue, [V], []}) -> - {{value, V}, {queue, [], []}}; -out({queue, [Y|In], []}) -> - [V|Out] = lists:reverse(In, []), - {{value, V}, {queue, [Y], Out}}; -out({queue, In, [V]}) when is_list(In) -> - {{value,V}, r2f(In)}; -out({queue, In,[V|Out]}) when is_list(In) -> - {{value, V}, {queue, In, Out}}; -out({pqueue, [{P, Q} | Queues]}) -> - {R, Q1} = out(Q), - NewQ = case is_empty(Q1) of - true -> case Queues of - [] -> {queue, [], []}; - [{0, OnlyQ}] -> OnlyQ; - [_|_] -> {pqueue, Queues} - end; - false -> {pqueue, [{P, Q1} | Queues]} - end, - {R, NewQ}. - -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - -r2f([]) -> {queue, [], []}; -r2f([_] = R) -> {queue, [], R}; -r2f([X,Y]) -> {queue, [X], [Y]}; -r2f([X,Y|R]) -> {queue, [X,Y], lists:reverse(R, [])}. diff --git a/src/rabbit.erl b/src/rabbit.erl deleted file mode 100644 index 67e2e40f..00000000 --- a/src/rabbit.erl +++ /dev/null @@ -1,502 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit). - --behaviour(application). - --export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, - rotate_logs/1]). - --export([start/2, stop/1]). - --export([log_location/1]). - -%%--------------------------------------------------------------------------- -%% Boot steps. --export([maybe_insert_default_data/0]). - --rabbit_boot_step({codec_correctness_check, - [{description, "codec correctness check"}, - {mfa, {rabbit_binary_generator, - check_empty_content_body_frame_size, - []}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({database, - [{mfa, {rabbit_mnesia, init, []}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({file_handle_cache, - [{description, "file handle cache server"}, - {mfa, {rabbit_sup, start_restartable_child, - [file_handle_cache]}}, - {enables, worker_pool}]}). - --rabbit_boot_step({worker_pool, - [{description, "worker pool"}, - {mfa, {rabbit_sup, start_child, [worker_pool_sup]}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({external_infrastructure, - [{description, "external infrastructure ready"}]}). - --rabbit_boot_step({rabbit_registry, - [{description, "plugin registry"}, - {mfa, {rabbit_sup, start_child, - [rabbit_registry]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_log, - [{description, "logging server"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_log]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_event, - [{description, "statistics event manager"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_event]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({kernel_ready, - [{description, "kernel ready"}, - {requires, external_infrastructure}]}). - --rabbit_boot_step({rabbit_alarm, - [{description, "alarm handler"}, - {mfa, {rabbit_alarm, start, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_memory_monitor, - [{description, "memory monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_memory_monitor]}}, - {requires, rabbit_alarm}, - {enables, core_initialized}]}). - --rabbit_boot_step({guid_generator, - [{description, "guid generator"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_guid]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({delegate_sup, - [{description, "cluster delegate"}, - {mfa, {rabbit_sup, start_child, - [delegate_sup]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_node_monitor, - [{description, "node monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_node_monitor]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({core_initialized, - [{description, "core initialized"}, - {requires, kernel_ready}]}). - --rabbit_boot_step({empty_db_check, - [{description, "empty DB check"}, - {mfa, {?MODULE, maybe_insert_default_data, []}}, - {requires, core_initialized}, - {enables, routing_ready}]}). - --rabbit_boot_step({exchange_recovery, - [{description, "exchange recovery"}, - {mfa, {rabbit_exchange, recover, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({queue_sup_queue_recovery, - [{description, "queue supervisor and queue recovery"}, - {mfa, {rabbit_amqqueue, start, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({routing_ready, - [{description, "message delivery logic ready"}, - {requires, core_initialized}]}). - --rabbit_boot_step({log_relay, - [{description, "error log relay"}, - {mfa, {rabbit_error_logger, boot, []}}, - {requires, routing_ready}, - {enables, networking}]}). - --rabbit_boot_step({direct_client, - [{mfa, {rabbit_direct, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({networking, - [{mfa, {rabbit_networking, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({notify_cluster, - [{description, "notify cluster nodes"}, - {mfa, {rabbit_node_monitor, notify_cluster, []}}, - {requires, networking}]}). - -%%--------------------------------------------------------------------------- - --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --define(APPS, [os_mon, mnesia, rabbit]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(file_suffix() :: binary()). -%% this really should be an abstract type --type(log_location() :: 'tty' | 'undefined' | file:filename()). - --spec(prepare/0 :: () -> 'ok'). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_halt/0 :: () -> 'ok'). --spec(rotate_logs/1 :: (file_suffix()) -> rabbit_types:ok_or_error(any())). --spec(status/0 :: - () -> [{running_applications, [{atom(), string(), string()}]} | - {nodes, [{rabbit_mnesia:node_type(), [node()]}]} | - {running_nodes, [node()]}]). --spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). - --endif. - -%%---------------------------------------------------------------------------- - -prepare() -> - ok = ensure_working_log_handlers(). - -start() -> - try - ok = prepare(), - ok = rabbit_misc:start_applications(?APPS) - after - %%give the error loggers some time to catch up - timer:sleep(100) - end. - -stop() -> - ok = rabbit_misc:stop_applications(?APPS). - -stop_and_halt() -> - try - stop() - after - init:stop() - end, - ok. - -status() -> - [{running_applications, application:which_applications()}] ++ - rabbit_mnesia:status(). - -rotate_logs(BinarySuffix) -> - Suffix = binary_to_list(BinarySuffix), - log_rotation_result(rotate_logs(log_location(kernel), - Suffix, - rabbit_error_logger_file_h), - rotate_logs(log_location(sasl), - Suffix, - rabbit_sasl_report_file_h)). - -%%-------------------------------------------------------------------- - -start(normal, []) -> - case erts_version_check() of - ok -> - {ok, SupPid} = rabbit_sup:start_link(), - true = register(rabbit, self()), - - print_banner(), - [ok = run_boot_step(Step) || Step <- boot_steps()], - io:format("~nbroker running~n"), - {ok, SupPid}; - Error -> - Error - end. - -stop(_State) -> - terminated_ok = error_logger:delete_report_handler(rabbit_error_logger), - ok = rabbit_alarm:stop(), - ok = case rabbit_mnesia:is_clustered() of - true -> rabbit_amqqueue:on_node_down(node()); - false -> rabbit_mnesia:empty_ram_only_tables() - end, - ok. - -%%--------------------------------------------------------------------------- - -erts_version_check() -> - FoundVer = erlang:system_info(version), - case rabbit_misc:version_compare(?ERTS_MINIMUM, FoundVer, lte) of - true -> ok; - false -> {error, {erlang_version_too_old, - {found, FoundVer}, {required, ?ERTS_MINIMUM}}} - end. - -boot_error(Format, Args) -> - io:format("BOOT ERROR: " ++ Format, Args), - error_logger:error_msg(Format, Args), - timer:sleep(1000), - exit({?MODULE, failure_during_boot}). - -run_boot_step({StepName, Attributes}) -> - Description = case lists:keysearch(description, 1, Attributes) of - {value, {_, D}} -> D; - false -> StepName - end, - case [MFA || {mfa, MFA} <- Attributes] of - [] -> - io:format("-- ~s~n", [Description]); - MFAs -> - io:format("starting ~-60s ...", [Description]), - [try - apply(M,F,A) - catch - _:Reason -> boot_error("FAILED~nReason: ~p~nStacktrace: ~p~n", - [Reason, erlang:get_stacktrace()]) - end || {M,F,A} <- MFAs], - io:format("done~n"), - ok - end. - -boot_steps() -> - sort_boot_steps(rabbit_misc:all_module_attributes(rabbit_boot_step)). - -vertices(_Module, Steps) -> - [{StepName, {StepName, Atts}} || {StepName, Atts} <- Steps]. - -edges(_Module, Steps) -> - [case Key of - requires -> {StepName, OtherStep}; - enables -> {OtherStep, StepName} - end || {StepName, Atts} <- Steps, - {Key, OtherStep} <- Atts, - Key =:= requires orelse Key =:= enables]. - -sort_boot_steps(UnsortedSteps) -> - case rabbit_misc:build_acyclic_graph(fun vertices/2, fun edges/2, - UnsortedSteps) of - {ok, G} -> - %% Use topological sort to find a consistent ordering (if - %% there is one, otherwise fail). - SortedSteps = lists:reverse( - [begin - {StepName, Step} = digraph:vertex(G, StepName), - Step - end || StepName <- digraph_utils:topsort(G)]), - digraph:delete(G), - %% Check that all mentioned {M,F,A} triples are exported. - case [{StepName, {M,F,A}} || - {StepName, Attributes} <- SortedSteps, - {mfa, {M,F,A}} <- Attributes, - not erlang:function_exported(M, F, length(A))] of - [] -> SortedSteps; - MissingFunctions -> boot_error( - "Boot step functions not exported: ~p~n", - [MissingFunctions]) - end; - {error, {vertex, duplicate, StepName}} -> - boot_error("Duplicate boot step name: ~w~n", [StepName]); - {error, {edge, Reason, From, To}} -> - boot_error( - "Could not add boot step dependency of ~w on ~w:~n~s", - [To, From, - case Reason of - {bad_vertex, V} -> - io_lib:format("Boot step not registered: ~w~n", [V]); - {bad_edge, [First | Rest]} -> - [io_lib:format("Cyclic dependency: ~w", [First]), - [io_lib:format(" depends on ~w", [Next]) || - Next <- Rest], - io_lib:format(" depends on ~w~n", [First])] - end]) - end. - -%%--------------------------------------------------------------------------- - -log_location(Type) -> - case application:get_env(Type, case Type of - kernel -> error_logger; - sasl -> sasl_error_logger - end) of - {ok, {file, File}} -> File; - {ok, false} -> undefined; - {ok, tty} -> tty; - {ok, silent} -> undefined; - {ok, Bad} -> throw({error, {cannot_log_to_file, Bad}}); - _ -> undefined - end. - -app_location() -> - {ok, Application} = application:get_application(), - filename:absname(code:where_is_file(atom_to_list(Application) ++ ".app")). - -home_dir() -> - case init:get_argument(home) of - {ok, [[Home]]} -> Home; - Other -> Other - end. - -config_files() -> - case init:get_argument(config) of - {ok, Files} -> [filename:absname( - filename:rootname(File, ".config") ++ ".config") || - File <- Files]; - error -> [] - end. - -%--------------------------------------------------------------------------- - -print_banner() -> - {ok, Product} = application:get_key(id), - {ok, Version} = application:get_key(vsn), - ProductLen = string:len(Product), - io:format("~n" - "+---+ +---+~n" - "| | | |~n" - "| | | |~n" - "| | | |~n" - "| +---+ +-------+~n" - "| |~n" - "| ~s +---+ |~n" - "| | | |~n" - "| ~s +---+ |~n" - "| |~n" - "+-------------------+~n" - "~s~n~s~n~s~n~n", - [Product, string:right([$v|Version], ProductLen), - ?PROTOCOL_VERSION, - ?COPYRIGHT_MESSAGE, ?INFORMATION_MESSAGE]), - Settings = [{"node", node()}, - {"app descriptor", app_location()}, - {"home dir", home_dir()}, - {"config file(s)", config_files()}, - {"cookie hash", rabbit_misc:cookie_hash()}, - {"log", log_location(kernel)}, - {"sasl log", log_location(sasl)}, - {"database dir", rabbit_mnesia:dir()}, - {"erlang version", erlang:system_info(version)}], - DescrLen = 1 + lists:max([length(K) || {K, _V} <- Settings]), - Format = fun (K, V) -> - io:format("~-" ++ integer_to_list(DescrLen) ++ "s: ~s~n", - [K, V]) - end, - lists:foreach(fun ({"config file(s)" = K, []}) -> - Format(K, "(none)"); - ({"config file(s)" = K, [V0 | Vs]}) -> - Format(K, V0), [Format("", V) || V <- Vs]; - ({K, V}) -> - Format(K, V) - end, Settings), - io:nl(). - -ensure_working_log_handlers() -> - Handlers = gen_event:which_handlers(error_logger), - ok = ensure_working_log_handler(error_logger_file_h, - rabbit_error_logger_file_h, - error_logger_tty_h, - log_location(kernel), - Handlers), - - ok = ensure_working_log_handler(sasl_report_file_h, - rabbit_sasl_report_file_h, - sasl_report_tty_h, - log_location(sasl), - Handlers), - ok. - -ensure_working_log_handler(OldFHandler, NewFHandler, TTYHandler, - LogLocation, Handlers) -> - case LogLocation of - undefined -> ok; - tty -> case lists:member(TTYHandler, Handlers) of - true -> ok; - false -> - throw({error, {cannot_log_to_tty, - TTYHandler, not_installed}}) - end; - _ -> case lists:member(NewFHandler, Handlers) of - true -> ok; - false -> case rotate_logs(LogLocation, "", - OldFHandler, NewFHandler) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_log_to_file, - LogLocation, Reason}}) - end - end - end. - -maybe_insert_default_data() -> - case rabbit_mnesia:is_db_empty() of - true -> insert_default_data(); - false -> ok - end. - -insert_default_data() -> - {ok, DefaultUser} = application:get_env(default_user), - {ok, DefaultPass} = application:get_env(default_pass), - {ok, DefaultAdmin} = application:get_env(default_user_is_admin), - {ok, DefaultVHost} = application:get_env(default_vhost), - {ok, [DefaultConfigurePerm, DefaultWritePerm, DefaultReadPerm]} = - application:get_env(default_permissions), - ok = rabbit_vhost:add(DefaultVHost), - ok = rabbit_auth_backend_internal:add_user(DefaultUser, DefaultPass), - case DefaultAdmin of - true -> rabbit_auth_backend_internal:set_admin(DefaultUser); - _ -> ok - end, - ok = rabbit_auth_backend_internal:set_permissions(DefaultUser, DefaultVHost, - DefaultConfigurePerm, - DefaultWritePerm, - DefaultReadPerm), - ok. - -rotate_logs(File, Suffix, Handler) -> - rotate_logs(File, Suffix, Handler, Handler). - -rotate_logs(File, Suffix, OldHandler, NewHandler) -> - case File of - undefined -> ok; - tty -> ok; - _ -> gen_event:swap_handler( - error_logger, - {OldHandler, swap}, - {NewHandler, {File, Suffix}}) - end. - -log_rotation_result({error, MainLogError}, {error, SaslLogError}) -> - {error, {{cannot_rotate_main_logs, MainLogError}, - {cannot_rotate_sasl_logs, SaslLogError}}}; -log_rotation_result({error, MainLogError}, ok) -> - {error, {cannot_rotate_main_logs, MainLogError}}; -log_rotation_result(ok, {error, SaslLogError}) -> - {error, {cannot_rotate_sasl_logs, SaslLogError}}; -log_rotation_result(ok, ok) -> - ok. diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl deleted file mode 100644 index b0b57af4..00000000 --- a/src/rabbit_access_control.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_access_control). - --include("rabbit.hrl"). - --export([user_pass_login/2, check_user_pass_login/2, check_user_login/2, - check_vhost_access/2, check_resource_access/3, list_vhosts/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([permission_atom/0, vhost_permission_atom/0]). - --type(permission_atom() :: 'configure' | 'read' | 'write'). --type(vhost_permission_atom() :: 'read' | 'write'). - --spec(user_pass_login/2 :: - (rabbit_types:username(), rabbit_types:password()) - -> rabbit_types:user() | rabbit_types:channel_exit()). --spec(check_user_pass_login/2 :: - (rabbit_types:username(), rabbit_types:password()) - -> {'ok', rabbit_types:user()} | {'refused', string(), [any()]}). --spec(check_vhost_access/2 :: - (rabbit_types:user(), rabbit_types:vhost()) - -> 'ok' | rabbit_types:channel_exit()). --spec(check_resource_access/3 :: - (rabbit_types:user(), rabbit_types:r(atom()), permission_atom()) - -> 'ok' | rabbit_types:channel_exit()). --spec(list_vhosts/2 :: (rabbit_types:user(), vhost_permission_atom()) - -> [rabbit_types:vhost()]). - --endif. - -%%---------------------------------------------------------------------------- - -user_pass_login(User, Pass) -> - ?LOGDEBUG("Login with user ~p pass ~p~n", [User, Pass]), - case check_user_pass_login(User, Pass) of - {refused, Msg, Args} -> - rabbit_misc:protocol_error( - access_refused, "login refused: ~s", [io_lib:format(Msg, Args)]); - {ok, U} -> - U - end. - -check_user_pass_login(Username, Password) -> - check_user_login(Username, [{password, Password}]). - -check_user_login(Username, AuthProps) -> - {ok, Modules} = application:get_env(rabbit, auth_backends), - lists:foldl( - fun(Module, {refused, _, _}) -> - case Module:check_user_login(Username, AuthProps) of - {error, E} -> - {refused, "~s failed authenticating ~s: ~p~n", - [Module, Username, E]}; - Else -> - Else - end; - (_, {ok, User}) -> - {ok, User} - end, {refused, "No modules checked '~s'", [Username]}, Modules). - -check_vhost_access(User = #user{ username = Username, - auth_backend = Module }, VHostPath) -> - ?LOGDEBUG("Checking VHost access for ~p to ~p~n", [Username, VHostPath]), - check_access( - fun() -> - rabbit_vhost:exists(VHostPath) andalso - Module:check_vhost_access(User, VHostPath, write) - end, - "~s failed checking vhost access to ~s for ~s: ~p~n", - [Module, VHostPath, Username], - "access to vhost '~s' refused for user '~s'", - [VHostPath, Username]). - -check_resource_access(User, R = #resource{kind = exchange, name = <<"">>}, - Permission) -> - check_resource_access(User, R#resource{name = <<"amq.default">>}, - Permission); -check_resource_access(User = #user{username = Username, auth_backend = Module}, - Resource, Permission) -> - check_access( - fun() -> Module:check_resource_access(User, Resource, Permission) end, - "~s failed checking resource access to ~p for ~s: ~p~n", - [Module, Resource, Username], - "access to ~s refused for user '~s'", - [rabbit_misc:rs(Resource), Username]). - -check_access(Fun, ErrStr, ErrArgs, RefStr, RefArgs) -> - Allow = case Fun() of - {error, _} = E -> - rabbit_log:error(ErrStr, ErrArgs ++ [E]), - false; - Else -> - Else - end, - case Allow of - true -> - ok; - false -> - rabbit_misc:protocol_error(access_refused, RefStr, RefArgs) - end. - -%% Permission = write -> log in -%% Permission = read -> learn of the existence of (only relevant for -%% management plugin) -list_vhosts(User = #user{username = Username, auth_backend = Module}, - Permission) -> - lists:filter( - fun(VHost) -> - case Module:check_vhost_access(User, VHost, Permission) of - {error, _} = E -> - rabbit_log:warning("~w failed checking vhost access " - "to ~s for ~s: ~p~n", - [Module, VHost, Username, E]), - false; - Else -> - Else - end - end, rabbit_vhost:list()). diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl deleted file mode 100644 index 37e40981..00000000 --- a/src/rabbit_alarm.erl +++ /dev/null @@ -1,109 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_alarm). - --behaviour(gen_event). - --export([start/0, stop/0, register/2]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - --record(alarms, {alertees, vm_memory_high_watermark = false}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(mfa_tuple() :: {atom(), atom(), list()}). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(register/2 :: (pid(), mfa_tuple()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - ok = alarm_handler:add_alarm_handler(?MODULE, []), - {ok, MemoryWatermark} = application:get_env(vm_memory_high_watermark), - ok = case MemoryWatermark == 0 of - true -> ok; - false -> rabbit_sup:start_restartable_child(vm_memory_monitor, - [MemoryWatermark]) - end, - ok. - -stop() -> - ok = alarm_handler:delete_alarm_handler(?MODULE). - -register(Pid, HighMemMFA) -> - gen_event:call(alarm_handler, ?MODULE, - {register, Pid, HighMemMFA}, - infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #alarms{alertees = dict:new()}}. - -handle_call({register, Pid, {M, F, A} = HighMemMFA}, - State = #alarms{alertees = Alertess}) -> - _MRef = erlang:monitor(process, Pid), - ok = case State#alarms.vm_memory_high_watermark of - true -> apply(M, F, A ++ [Pid, true]); - false -> ok - end, - NewAlertees = dict:store(Pid, HighMemMFA, Alertess), - {ok, State#alarms.vm_memory_high_watermark, - State#alarms{alertees = NewAlertees}}; - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({set_alarm, {vm_memory_high_watermark, []}}, State) -> - ok = alert(true, State#alarms.alertees), - {ok, State#alarms{vm_memory_high_watermark = true}}; - -handle_event({clear_alarm, vm_memory_high_watermark}, State) -> - ok = alert(false, State#alarms.alertees), - {ok, State#alarms{vm_memory_high_watermark = false}}; - -handle_event(_Event, State) -> - {ok, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #alarms{alertees = Alertess}) -> - {ok, State#alarms{alertees = dict:erase(Pid, Alertess)}}; - -handle_info(_Info, State) -> - {ok, State}. - -terminate(_Arg, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -alert(_Alert, undefined) -> - ok; -alert(Alert, Alertees) -> - dict:fold(fun (Pid, {M, F, A}, Acc) -> - ok = erlang:apply(M, F, A ++ [Pid, Alert]), - Acc - end, ok, Alertees). diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl deleted file mode 100644 index 2545b07c..00000000 --- a/src/rabbit_amqqueue.erl +++ /dev/null @@ -1,517 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue). - --export([start/0, stop/0, declare/5, delete_immediately/1, delete/3, purge/1]). --export([internal_declare/2, internal_delete/1, - maybe_run_queue_via_backing_queue/2, - maybe_run_queue_via_backing_queue_async/2, - sync_timeout/1, update_ram_duration/1, set_ram_duration_target/2, - set_maximum_since_use/2, maybe_expire/1, drop_expired/1]). --export([pseudo_queue/2]). --export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, - check_exclusive_access/2, with_exclusive_access_or_die/3, - stat/1, deliver/2, requeue/3, ack/4, reject/4]). --export([list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). --export([emit_stats/1]). --export([consumers/1, consumers_all/1]). --export([basic_get/3, basic_consume/7, basic_cancel/4]). --export([notify_sent/2, unblock/2, flush_all/2]). --export([commit_all/3, rollback_all/3, notify_down_all/2, limit_all/3]). --export([on_node_down/1]). - --include("rabbit.hrl"). --include_lib("stdlib/include/qlc.hrl"). - --define(INTEGER_ARG_TYPES, [byte, short, signedint, long]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, qmsg/0]). - --type(name() :: rabbit_types:r('queue')). - --type(qlen() :: rabbit_types:ok(non_neg_integer())). --type(qfun(A) :: fun ((rabbit_types:amqqueue()) -> A)). --type(qmsg() :: {name(), pid(), msg_id(), boolean(), rabbit_types:message()}). --type(msg_id() :: non_neg_integer()). --type(ok_or_errors() :: - 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). - --type(queue_or_not_found() :: rabbit_types:amqqueue() | 'not_found'). - --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(declare/5 :: - (name(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> {'new' | 'existing', rabbit_types:amqqueue()} | - rabbit_types:channel_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:amqqueue()) | - rabbit_types:error('not_found')). --spec(with/2 :: (name(), qfun(A)) -> A | rabbit_types:error('not_found')). --spec(with_or_die/2 :: - (name(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(assert_equivalence/5 :: - (rabbit_types:amqqueue(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> 'ok' | rabbit_types:channel_exit() | - rabbit_types:connection_exit()). --spec(check_exclusive_access/2 :: - (rabbit_types:amqqueue(), pid()) - -> 'ok' | rabbit_types:channel_exit()). --spec(with_exclusive_access_or_die/3 :: - (name(), pid(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:amqqueue()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:amqqueue()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:amqqueue(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 :: (rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(consumers/1 :: - (rabbit_types:amqqueue()) - -> [{pid(), rabbit_types:ctag(), boolean()}]). --spec(consumers_all/1 :: - (rabbit_types:vhost()) - -> [{name(), pid(), rabbit_types:ctag(), boolean()}]). --spec(stat/1 :: - (rabbit_types:amqqueue()) - -> {'ok', non_neg_integer(), non_neg_integer()}). --spec(emit_stats/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete_immediately/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete/3 :: - (rabbit_types:amqqueue(), 'false', 'false') - -> qlen(); - (rabbit_types:amqqueue(), 'true' , 'false') - -> qlen() | rabbit_types:error('in_use'); - (rabbit_types:amqqueue(), 'false', 'true' ) - -> qlen() | rabbit_types:error('not_empty'); - (rabbit_types:amqqueue(), 'true' , 'true' ) - -> qlen() | - rabbit_types:error('in_use') | - rabbit_types:error('not_empty')). --spec(purge/1 :: (rabbit_types:amqqueue()) -> qlen()). --spec(deliver/2 :: (pid(), rabbit_types:delivery()) -> boolean()). --spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). --spec(ack/4 :: - (pid(), rabbit_types:maybe(rabbit_types:txn()), [msg_id()], pid()) - -> 'ok'). --spec(reject/4 :: (pid(), [msg_id()], boolean(), pid()) -> 'ok'). --spec(commit_all/3 :: ([pid()], rabbit_types:txn(), pid()) -> ok_or_errors()). --spec(rollback_all/3 :: ([pid()], rabbit_types:txn(), pid()) -> 'ok'). --spec(notify_down_all/2 :: ([pid()], pid()) -> ok_or_errors()). --spec(limit_all/3 :: ([pid()], pid(), pid() | 'undefined') -> ok_or_errors()). --spec(basic_get/3 :: (rabbit_types:amqqueue(), pid(), boolean()) -> - {'ok', non_neg_integer(), qmsg()} | 'empty'). --spec(basic_consume/7 :: - (rabbit_types:amqqueue(), boolean(), pid(), pid() | 'undefined', - rabbit_types:ctag(), boolean(), any()) - -> rabbit_types:ok_or_error('exclusive_consume_unavailable')). --spec(basic_cancel/4 :: - (rabbit_types:amqqueue(), pid(), rabbit_types:ctag(), any()) -> 'ok'). --spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(flush_all/2 :: ([pid()], pid()) -> 'ok'). --spec(internal_declare/2 :: - (rabbit_types:amqqueue(), boolean()) - -> queue_or_not_found() | rabbit_misc:thunk(queue_or_not_found())). --spec(internal_delete/1 :: - (name()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit() | - fun ((boolean()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit())). --spec(maybe_run_queue_via_backing_queue/2 :: - (pid(), (fun ((A) -> {[rabbit_guid:guid()], A}))) -> 'ok'). --spec(maybe_run_queue_via_backing_queue_async/2 :: - (pid(), (fun ((A) -> {[rabbit_guid:guid()], A}))) -> 'ok'). --spec(sync_timeout/1 :: (pid()) -> 'ok'). --spec(update_ram_duration/1 :: (pid()) -> 'ok'). --spec(set_ram_duration_target/2 :: (pid(), number() | 'infinity') -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). --spec(maybe_expire/1 :: (pid()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(pseudo_queue/2 :: (name(), pid()) -> rabbit_types:amqqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - DurableQueues = find_durable_queues(), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:start([QName || #amqqueue{name = QName} <- DurableQueues]), - {ok,_} = supervisor:start_child( - rabbit_sup, - {rabbit_amqqueue_sup, - {rabbit_amqqueue_sup, start_link, []}, - transient, infinity, supervisor, [rabbit_amqqueue_sup]}), - _RealDurableQueues = recover_durable_queues(DurableQueues), - ok. - -stop() -> - ok = supervisor:terminate_child(rabbit_sup, rabbit_amqqueue_sup), - ok = supervisor:delete_child(rabbit_sup, rabbit_amqqueue_sup), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:stop(). - -find_durable_queues() -> - Node = node(), - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end). - -recover_durable_queues(DurableQueues) -> - Qs = [start_queue_process(Q) || Q <- DurableQueues], - [Q || Q <- Qs, - gen_server2:call(Q#amqqueue.pid, {init, true}, infinity) == Q]. - -declare(QueueName, Durable, AutoDelete, Args, Owner) -> - ok = check_declare_arguments(QueueName, Args), - Q = start_queue_process(#amqqueue{name = QueueName, - durable = Durable, - auto_delete = AutoDelete, - arguments = Args, - exclusive_owner = Owner, - pid = none}), - case gen_server2:call(Q#amqqueue.pid, {init, false}) of - not_found -> rabbit_misc:not_found(QueueName); - Q1 -> Q1 - end. - -internal_declare(Q, true) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> ok = store_queue(Q), rabbit_misc:const(Q) end); -internal_declare(Q = #amqqueue{name = QueueName}, false) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> - case mnesia:read({rabbit_durable_queue, QueueName}) of - [] -> ok = store_queue(Q), - B = add_default_binding(Q), - fun (Tx) -> B(Tx), Q end; - [_] -> %% Q exists on stopped node - rabbit_misc:const(not_found) - end; - [ExistingQ = #amqqueue{pid = QPid}] -> - case is_process_alive(QPid) of - true -> rabbit_misc:const(ExistingQ); - false -> TailFun = internal_delete(QueueName), - fun (Tx) -> TailFun(Tx), ExistingQ end - end - end - end). - -store_queue(Q = #amqqueue{durable = true}) -> - ok = mnesia:write(rabbit_durable_queue, Q, write), - ok = mnesia:write(rabbit_queue, Q, write), - ok; -store_queue(Q = #amqqueue{durable = false}) -> - ok = mnesia:write(rabbit_queue, Q, write), - ok. - -start_queue_process(Q) -> - {ok, Pid} = rabbit_amqqueue_sup:start_child([Q]), - Q#amqqueue{pid = Pid}. - -add_default_binding(#amqqueue{name = QueueName}) -> - ExchangeName = rabbit_misc:r(QueueName, exchange, <<>>), - RoutingKey = QueueName#resource.name, - rabbit_binding:add(#binding{source = ExchangeName, - destination = QueueName, - key = RoutingKey, - args = []}). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_queue, Name}). - -with(Name, F, E) -> - case lookup(Name) of - {ok, Q} -> rabbit_misc:with_exit_handler(E, fun () -> F(Q) end); - {error, not_found} -> E() - end. - -with(Name, F) -> - with(Name, F, fun () -> {error, not_found} end). -with_or_die(Name, F) -> - with(Name, F, fun () -> rabbit_misc:not_found(Name) end). - -assert_equivalence(#amqqueue{durable = Durable, - auto_delete = AutoDelete} = Q, - Durable, AutoDelete, RequiredArgs, Owner) -> - assert_args_equivalence(Q, RequiredArgs), - check_exclusive_access(Q, Owner, strict); -assert_equivalence(#amqqueue{name = QueueName}, - _Durable, _AutoDelete, _RequiredArgs, _Owner) -> - rabbit_misc:protocol_error( - precondition_failed, "parameters for ~s not equivalent", - [rabbit_misc:rs(QueueName)]). - -check_exclusive_access(Q, Owner) -> check_exclusive_access(Q, Owner, lax). - -check_exclusive_access(#amqqueue{exclusive_owner = Owner}, Owner, _MatchType) -> - ok; -check_exclusive_access(#amqqueue{exclusive_owner = none}, _ReaderPid, lax) -> - ok; -check_exclusive_access(#amqqueue{name = QueueName}, _ReaderPid, _MatchType) -> - rabbit_misc:protocol_error( - resource_locked, - "cannot obtain exclusive access to locked ~s", - [rabbit_misc:rs(QueueName)]). - -with_exclusive_access_or_die(Name, ReaderPid, F) -> - with_or_die(Name, - fun (Q) -> check_exclusive_access(Q, ReaderPid), F(Q) end). - -assert_args_equivalence(#amqqueue{name = QueueName, arguments = Args}, - RequiredArgs) -> - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, QueueName, - [<<"x-expires">>]). - -check_declare_arguments(QueueName, Args) -> - [case Fun(rabbit_misc:table_lookup(Args, Key)) of - ok -> ok; - {error, Error} -> rabbit_misc:protocol_error( - precondition_failed, - "invalid arg '~s' for ~s: ~w", - [Key, rabbit_misc:rs(QueueName), Error]) - end || {Key, Fun} <- - [{<<"x-expires">>, fun check_expires_argument/1}, - {<<"x-message-ttl">>, fun check_message_ttl_argument/1}]], - ok. - -check_expires_argument(Val) -> - check_integer_argument(Val, - expires_not_of_acceptable_type, - expires_zero_or_less). - -check_message_ttl_argument(Val) -> - check_integer_argument(Val, - ttl_not_of_acceptable_type, - ttl_zero_or_less). - -check_integer_argument(undefined, _, _) -> - ok; -check_integer_argument({Type, Val}, InvalidTypeError, _) when Val > 0 -> - case lists:member(Type, ?INTEGER_ARG_TYPES) of - true -> ok; - false -> {error, {InvalidTypeError, Type, Val}} - end; -check_integer_argument({_Type, _Val}, _, ZeroOrLessError) -> - {error, ZeroOrLessError}. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_queue, - #amqqueue{name = rabbit_misc:r(VHostPath, queue), _ = '_'}). - -info_keys() -> rabbit_amqqueue_process:info_keys(). - -map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). - -info(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, info, infinity). - -info(#amqqueue{ pid = QPid }, Items) -> - case delegate_call(QPid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). - -consumers(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, consumers, infinity). - -consumers_all(VHostPath) -> - lists:append( - map(VHostPath, - fun (Q) -> [{Q#amqqueue.name, ChPid, ConsumerTag, AckRequired} || - {ChPid, ConsumerTag, AckRequired} <- consumers(Q)] - end)). - -stat(#amqqueue{pid = QPid}) -> - delegate_call(QPid, stat, infinity). - -emit_stats(#amqqueue{pid = QPid}) -> - delegate_cast(QPid, emit_stats). - -delete_immediately(#amqqueue{ pid = QPid }) -> - gen_server2:cast(QPid, delete_immediately). - -delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}, infinity). - -purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge, infinity). - -deliver(QPid, Delivery = #delivery{immediate = true}) -> - gen_server2:call(QPid, {deliver_immediately, Delivery}, infinity); -deliver(QPid, Delivery = #delivery{mandatory = true}) -> - gen_server2:call(QPid, {deliver, Delivery}, infinity), - true; -deliver(QPid, Delivery) -> - gen_server2:cast(QPid, {deliver, Delivery}), - true. - -requeue(QPid, MsgIds, ChPid) -> - delegate_call(QPid, {requeue, MsgIds, ChPid}, infinity). - -ack(QPid, Txn, MsgIds, ChPid) -> - delegate_cast(QPid, {ack, Txn, MsgIds, ChPid}). - -reject(QPid, MsgIds, Requeue, ChPid) -> - delegate_cast(QPid, {reject, MsgIds, Requeue, ChPid}). - -commit_all(QPids, Txn, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {commit, Txn, ChPid}, infinity) end, - QPids). - -rollback_all(QPids, Txn, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {rollback, Txn, ChPid}) end). - -notify_down_all(QPids, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, infinity) end, - QPids). - -limit_all(QPids, ChPid, LimiterPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> - gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) - end). - -basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> - delegate_call(QPid, {basic_get, ChPid, NoAck}, infinity). - -basic_consume(#amqqueue{pid = QPid}, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg) -> - delegate_call(QPid, {basic_consume, NoAck, ChPid, - LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg}, - infinity). - -basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> - ok = delegate_call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}, - infinity). - -notify_sent(QPid, ChPid) -> - delegate_cast(QPid, {notify_sent, ChPid}). - -unblock(QPid, ChPid) -> - delegate_cast(QPid, {unblock, ChPid}). - -flush_all(QPids, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). - -internal_delete1(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - ok = mnesia:delete({rabbit_durable_queue, QueueName}), - %% we want to execute some things, as decided by rabbit_exchange, - %% after the transaction. - rabbit_binding:remove_for_destination(QueueName). - -internal_delete(QueueName) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> rabbit_misc:const({error, not_found}); - [_] -> Deletions = internal_delete1(QueueName), - fun (Tx) -> ok = rabbit_binding:process_deletions( - Deletions, Tx) - end - end - end). - -maybe_run_queue_via_backing_queue(QPid, Fun) -> - gen_server2:call(QPid, {maybe_run_queue_via_backing_queue, Fun}, infinity). - -maybe_run_queue_via_backing_queue_async(QPid, Fun) -> - gen_server2:cast(QPid, {maybe_run_queue_via_backing_queue, Fun}). - -sync_timeout(QPid) -> - gen_server2:cast(QPid, sync_timeout). - -update_ram_duration(QPid) -> - gen_server2:cast(QPid, update_ram_duration). - -set_ram_duration_target(QPid, Duration) -> - gen_server2:cast(QPid, {set_ram_duration_target, Duration}). - -set_maximum_since_use(QPid, Age) -> - gen_server2:cast(QPid, {set_maximum_since_use, Age}). - -maybe_expire(QPid) -> - gen_server2:cast(QPid, maybe_expire). - -drop_expired(QPid) -> - gen_server2:cast(QPid, drop_expired). - -on_node_down(Node) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> qlc:e(qlc:q([delete_queue(QueueName) || - #amqqueue{name = QueueName, pid = Pid} - <- mnesia:table(rabbit_queue), - node(Pid) == Node])) - end, - fun (Deletions, Tx) -> - rabbit_binding:process_deletions( - lists:foldl(fun rabbit_binding:combine_deletions/2, - rabbit_binding:new_deletions(), - Deletions), - Tx) - end). - -delete_queue(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - rabbit_binding:remove_transient_for_destination(QueueName). - -pseudo_queue(QueueName, Pid) -> - #amqqueue{name = QueueName, - durable = false, - auto_delete = false, - arguments = [], - pid = Pid}. - -safe_delegate_call_ok(F, Pids) -> - case delegate:invoke(Pids, fun (Pid) -> - rabbit_misc:with_exit_handler( - fun () -> ok end, - fun () -> F(Pid) end) - end) of - {_, []} -> ok; - {_, Bad} -> {error, Bad} - end. - -delegate_call(Pid, Msg, Timeout) -> - delegate:invoke(Pid, fun (P) -> gen_server2:call(P, Msg, Timeout) end). - -delegate_cast(Pid, Msg) -> - delegate:invoke_no_result(Pid, fun (P) -> gen_server2:cast(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl deleted file mode 100644 index 7c7e28fe..00000000 --- a/src/rabbit_amqqueue_process.erl +++ /dev/null @@ -1,1164 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_process). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(gen_server2). - --define(UNSENT_MESSAGE_LIMIT, 100). --define(SYNC_INTERVAL, 5). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). - --define(BASE_MESSAGE_PROPERTIES, - #message_properties{expiry = undefined, needs_confirming = false}). - --export([start_link/1, info_keys/0]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2]). - -% Queue's state --record(q, {q, - exclusive_consumer, - has_had_consumers, - backing_queue, - backing_queue_state, - active_consumers, - blocked_consumers, - expires, - sync_timer_ref, - rate_timer_ref, - expiry_timer_ref, - stats_timer, - guid_to_channel, - ttl, - ttl_timer_ref - }). - --record(consumer, {tag, ack_required}). - -%% These are held in our process dictionary --record(cr, {consumer_count, - ch_pid, - limiter_pid, - monitor_ref, - acktags, - is_limit_active, - txn, - unsent_message_count}). - --define(STATISTICS_KEYS, - [pid, - exclusive_consumer_pid, - exclusive_consumer_tag, - messages_ready, - messages_unacknowledged, - messages, - consumers, - memory, - backing_queue_status - ]). - --define(CREATION_EVENT_KEYS, - [pid, - name, - durable, - auto_delete, - arguments, - owner_pid - ]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - -start_link(Q) -> gen_server2:start_link(?MODULE, Q, []). - -info_keys() -> ?INFO_KEYS. - -%%---------------------------------------------------------------------------- - -init(Q) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - process_flag(trap_exit, true), - {ok, BQ} = application:get_env(backing_queue_module), - - {ok, #q{q = Q#amqqueue{pid = self()}, - exclusive_consumer = none, - has_had_consumers = false, - backing_queue = BQ, - backing_queue_state = undefined, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - expires = undefined, - sync_timer_ref = undefined, - rate_timer_ref = undefined, - expiry_timer_ref = undefined, - ttl = undefined, - stats_timer = rabbit_event:init_stats_timer(), - guid_to_channel = dict:new()}, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -terminate(shutdown, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate({shutdown, _}, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate(_Reason, State = #q{backing_queue = BQ}) -> - %% FIXME: How do we cancel active subscriptions? - terminate_shutdown(fun (BQS) -> - BQS1 = BQ:delete_and_terminate(BQS), - %% don't care if the internal delete - %% doesn't return 'ok'. - rabbit_amqqueue:internal_delete(qname(State)), - BQS1 - end, State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -declare(Recover, From, - State = #q{q = Q = #amqqueue{name = QName, durable = IsDurable}, - backing_queue = BQ, backing_queue_state = undefined, - stats_timer = StatsTimer}) -> - case rabbit_amqqueue:internal_declare(Q, Recover) of - not_found -> {stop, normal, not_found, State}; - Q -> gen_server2:reply(From, {new, Q}), - ok = file_handle_cache:register_callback( - rabbit_amqqueue, set_maximum_since_use, - [self()]), - ok = rabbit_memory_monitor:register( - self(), {rabbit_amqqueue, - set_ram_duration_target, [self()]}), - BQS = BQ:init(QName, IsDurable, Recover), - State1 = process_args(State#q{backing_queue_state = BQS}), - rabbit_event:notify(queue_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> emit_stats(State1) end), - noreply(State1); - Q1 -> {stop, normal, {existing, Q1}, State} - end. - -process_args(State = #q{q = #amqqueue{arguments = Arguments}}) -> - lists:foldl(fun({Arg, Fun}, State1) -> - case rabbit_misc:table_lookup(Arguments, Arg) of - {_Type, Val} -> Fun(Val, State1); - undefined -> State1 - end - end, State, [{<<"x-expires">>, fun init_expires/2}, - {<<"x-message-ttl">>, fun init_ttl/2}]). - -init_expires(Expires, State) -> ensure_expiry_timer(State#q{expires = Expires}). - -init_ttl(TTL, State) -> drop_expired_messages(State#q{ttl = TTL}). - -terminate_shutdown(Fun, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - stop_sync_timer(stop_rate_timer(State)), - case BQS of - undefined -> State; - _ -> ok = rabbit_memory_monitor:deregister(self()), - BQS1 = lists:foldl( - fun (#cr{txn = none}, BQSN) -> - BQSN; - (#cr{txn = Txn}, BQSN) -> - {_AckTags, BQSN1} = - BQ:tx_rollback(Txn, BQSN), - BQSN1 - end, BQS, all_ch_record()), - [emit_consumer_deleted(Ch, CTag) - || {Ch, CTag, _} <- consumers(State1)], - rabbit_event:notify(queue_deleted, [{pid, self()}]), - State1#q{backing_queue_state = Fun(BQS1)} - end. - -reply(Reply, NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {reply, Reply, NewState1, Timeout}. - -noreply(NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {noreply, NewState1, Timeout}. - -next_state(State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - ensure_rate_timer(State), - State2 = ensure_stats_timer(State1), - case BQ:needs_idle_timeout(BQS) of - true -> {ensure_sync_timer(State2), 0}; - false -> {stop_sync_timer(State2), hibernate} - end. - -ensure_sync_timer(State = #q{sync_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?SYNC_INTERVAL, rabbit_amqqueue, sync_timeout, [self()]), - State#q{sync_timer_ref = TRef}; -ensure_sync_timer(State) -> - State. - -stop_sync_timer(State = #q{sync_timer_ref = undefined}) -> - State; -stop_sync_timer(State = #q{sync_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{sync_timer_ref = undefined}. - -ensure_rate_timer(State = #q{rate_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), - State#q{rate_timer_ref = TRef}; -ensure_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -ensure_rate_timer(State) -> - State. - -stop_rate_timer(State = #q{rate_timer_ref = undefined}) -> - State; -stop_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{rate_timer_ref = undefined}. - -stop_expiry_timer(State = #q{expiry_timer_ref = undefined}) -> - State; -stop_expiry_timer(State = #q{expiry_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{expiry_timer_ref = undefined}. - -%% We wish to expire only when there are no consumers *and* the expiry -%% hasn't been refreshed (by queue.declare or basic.get) for the -%% configured period. -ensure_expiry_timer(State = #q{expires = undefined}) -> - State; -ensure_expiry_timer(State = #q{expires = Expires}) -> - case is_unused(State) of - true -> - NewState = stop_expiry_timer(State), - {ok, TRef} = timer:apply_after( - Expires, rabbit_amqqueue, maybe_expire, [self()]), - NewState#q{expiry_timer_ref = TRef}; - false -> - State - end. - -ensure_stats_timer(State = #q{stats_timer = StatsTimer, - q = Q}) -> - State#q{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> rabbit_amqqueue:emit_stats(Q) end)}. - -assert_invariant(#q{active_consumers = AC, - backing_queue = BQ, backing_queue_state = BQS}) -> - true = (queue:is_empty(AC) orelse BQ:is_empty(BQS)). - -lookup_ch(ChPid) -> - case get({ch, ChPid}) of - undefined -> not_found; - C -> C - end. - -ch_record(ChPid) -> - Key = {ch, ChPid}, - case get(Key) of - undefined -> - MonitorRef = erlang:monitor(process, ChPid), - C = #cr{consumer_count = 0, - ch_pid = ChPid, - monitor_ref = MonitorRef, - acktags = sets:new(), - is_limit_active = false, - txn = none, - unsent_message_count = 0}, - put(Key, C), - C; - C = #cr{} -> C - end. - -store_ch_record(C = #cr{ch_pid = ChPid}) -> - put({ch, ChPid}, C). - -maybe_store_ch_record(C = #cr{consumer_count = ConsumerCount, - acktags = ChAckTags, - txn = Txn, - unsent_message_count = UnsentMessageCount}) -> - case {sets:size(ChAckTags), ConsumerCount, UnsentMessageCount, Txn} of - {0, 0, 0, none} -> ok = erase_ch_record(C), - false; - _ -> store_ch_record(C), - true - end. - -erase_ch_record(#cr{ch_pid = ChPid, - limiter_pid = LimiterPid, - monitor_ref = MonitorRef}) -> - ok = rabbit_limiter:unregister(LimiterPid, self()), - erlang:demonitor(MonitorRef), - erase({ch, ChPid}), - ok. - -all_ch_record() -> - [C || {{ch, _}, C} <- get()]. - -is_ch_blocked(#cr{unsent_message_count = Count, is_limit_active = Limited}) -> - Limited orelse Count >= ?UNSENT_MESSAGE_LIMIT. - -ch_record_state_transition(OldCR, NewCR) -> - BlockedOld = is_ch_blocked(OldCR), - BlockedNew = is_ch_blocked(NewCR), - if BlockedOld andalso not(BlockedNew) -> unblock; - BlockedNew andalso not(BlockedOld) -> block; - true -> ok - end. - -deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - case queue:out(ActiveConsumers) of - {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}}, - ActiveConsumersTail} -> - C = #cr{limiter_pid = LimiterPid, - unsent_message_count = Count, - acktags = ChAckTags} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of - true -> - {{Message, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), AckTag, IsDelivered, Message}), - ChAckTags1 = - case AckRequired of - true -> sets:add_element(AckTag, ChAckTags); - false -> ChAckTags - end, - NewC = C#cr{unsent_message_count = Count + 1, - acktags = ChAckTags1}, - true = maybe_store_ch_record(NewC), - {NewActiveConsumers, NewBlockedConsumers} = - case ch_record_state_transition(C, NewC) of - ok -> {queue:in(QEntry, ActiveConsumersTail), - BlockedConsumers}; - block -> - {ActiveConsumers1, BlockedConsumers1} = - move_consumers(ChPid, - ActiveConsumersTail, - BlockedConsumers), - {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} - end, - State2 = State1#q{ - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}, - deliver_msgs_to_consumers(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> - true = maybe_store_ch_record(C#cr{is_limit_active = true}), - {NewActiveConsumers, NewBlockedConsumers} = - move_consumers(ChPid, - ActiveConsumers, - BlockedConsumers), - deliver_msgs_to_consumers( - Funs, FunAcc, - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} - end; - {empty, _} -> - {FunAcc, State} - end. - -deliver_from_queue_pred(IsEmpty, _State) -> - not IsEmpty. - -deliver_from_queue_deliver(AckRequired, false, State) -> - {{Message, IsDelivered, AckTag, Remaining}, State1} = - fetch(AckRequired, State), - {{Message, IsDelivered, AckTag}, 0 == Remaining, State1}. - -confirm_messages(Guids, State = #q{guid_to_channel = GTC}) -> - {CMs, GTC1} = - lists:foldl( - fun(Guid, {CMs, GTC0}) -> - case dict:find(Guid, GTC0) of - {ok, {ChPid, MsgSeqNo}} -> - {[{ChPid, MsgSeqNo} | CMs], dict:erase(Guid, GTC0)}; - _ -> - {CMs, GTC0} - end - end, {[], GTC}, Guids), - case lists:usort(CMs) of - [{Ch, MsgSeqNo} | CMs1] -> - [rabbit_channel:confirm(ChPid, MsgSeqNos) || - {ChPid, MsgSeqNos} <- group_confirms_by_channel( - CMs1, [{Ch, [MsgSeqNo]}])]; - [] -> - ok - end, - State#q{guid_to_channel = GTC1}. - -group_confirms_by_channel([], Acc) -> - Acc; -group_confirms_by_channel([{Ch, Msg1} | CMs], [{Ch, Msgs} | Acc]) -> - group_confirms_by_channel(CMs, [{Ch, [Msg1 | Msgs]} | Acc]); -group_confirms_by_channel([{Ch, Msg1} | CMs], Acc) -> - group_confirms_by_channel(CMs, [{Ch, [Msg1]} | Acc]). - -record_confirm_message(#delivery{msg_seq_no = undefined}, State) -> - {no_confirm, State}; -record_confirm_message(#delivery{sender = ChPid, - msg_seq_no = MsgSeqNo, - message = #basic_message { - is_persistent = true, - guid = Guid}}, - State = - #q{guid_to_channel = GTC, - q = #amqqueue{durable = true}}) -> - {confirm, - State#q{guid_to_channel = dict:store(Guid, {ChPid, MsgSeqNo}, GTC)}}; -record_confirm_message(_Delivery, State) -> - {no_confirm, State}. - -run_message_queue(State) -> - Funs = {fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3}, - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - drop_expired_messages(State), - IsEmpty = BQ:is_empty(BQS), - {_IsEmpty1, State2} = deliver_msgs_to_consumers(Funs, IsEmpty, State1), - State2. - -attempt_delivery(#delivery{txn = none, - sender = ChPid, - message = Message, - msg_seq_no = MsgSeqNo}, - {NeedsConfirming, State = #q{backing_queue = BQ}}) -> - %% must confirm immediately if it has a MsgSeqNo and not NeedsConfirming - case {NeedsConfirming, MsgSeqNo} of - {_, undefined} -> ok; - {no_confirm, _} -> rabbit_channel:confirm(ChPid, [MsgSeqNo]); - {confirm, _} -> ok - end, - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1 = #q{backing_queue_state = BQS}) -> - %% we don't need an expiry here because messages are - %% not being enqueued, so we use an empty - %% message_properties. - {AckTag, BQS1} = - BQ:publish_delivered( - AckRequired, Message, - (?BASE_MESSAGE_PROPERTIES)#message_properties{ - needs_confirming = (NeedsConfirming =:= confirm)}, - BQS), - {{Message, false, AckTag}, true, - State1#q{backing_queue_state = BQS1}} - end, - {Delivered, State1} = - deliver_msgs_to_consumers({ PredFun, DeliverFun }, false, State), - {Delivered, NeedsConfirming, State1}; -attempt_delivery(#delivery{txn = Txn, - sender = ChPid, - message = Message}, - {NeedsConfirming, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}}) -> - store_ch_record((ch_record(ChPid))#cr{txn = Txn}), - {true, - NeedsConfirming, - State#q{backing_queue_state = - BQ:tx_publish(Txn, Message, ?BASE_MESSAGE_PROPERTIES, BQS)}}. - -deliver_or_enqueue(Delivery, State) -> - case attempt_delivery(Delivery, record_confirm_message(Delivery, State)) of - {true, _, State1} -> - {true, State1}; - {false, NeedsConfirming, State1 = #q{backing_queue = BQ, - backing_queue_state = BQS}} -> - #delivery{message = Message} = Delivery, - BQS1 = BQ:publish(Message, - (message_properties(State)) #message_properties{ - needs_confirming = - (NeedsConfirming =:= confirm)}, - BQS), - {false, ensure_ttl_timer(State1#q{backing_queue_state = BQS1})} - end. - -requeue_and_run(AckTags, State = #q{backing_queue = BQ, ttl=TTL}) -> - maybe_run_queue_via_backing_queue( - fun (BQS) -> - {[], BQ:requeue(AckTags, reset_msg_expiry_fun(TTL), BQS)} - end, State). - -fetch(AckRequired, State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - {Result, BQS1} = BQ:fetch(AckRequired, BQS), - {Result, State#q{backing_queue_state = BQS1}}. - -add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). - -remove_consumer(ChPid, ConsumerTag, Queue) -> - queue:filter(fun ({CP, #consumer{tag = CT}}) -> - (CP /= ChPid) or (CT /= ConsumerTag) - end, Queue). - -remove_consumers(ChPid, Queue) -> - {Kept, Removed} = split_by_channel(ChPid, Queue), - [emit_consumer_deleted(Ch, CTag) || - {Ch, #consumer{tag = CTag}} <- queue:to_list(Removed)], - Kept. - -move_consumers(ChPid, From, To) -> - {Kept, Removed} = split_by_channel(ChPid, From), - {Kept, queue:join(To, Removed)}. - -split_by_channel(ChPid, Queue) -> - {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, - queue:to_list(Queue)), - {queue:from_list(Kept), queue:from_list(Removed)}. - -possibly_unblock(State, ChPid, Update) -> - case lookup_ch(ChPid) of - not_found -> - State; - C -> - NewC = Update(C), - maybe_store_ch_record(NewC), - case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> {NewBlockedConsumers, NewActiveConsumers} = - move_consumers(ChPid, - State#q.blocked_consumers, - State#q.active_consumers), - run_message_queue( - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}) - end - end. - -should_auto_delete(#q{q = #amqqueue{auto_delete = false}}) -> false; -should_auto_delete(#q{has_had_consumers = false}) -> false; -should_auto_delete(State) -> is_unused(State). - -handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(DownPid) of - not_found -> - {ok, State}; - C = #cr{ch_pid = ChPid, txn = Txn, acktags = ChAckTags} -> - ok = erase_ch_record(C), - State1 = State#q{ - exclusive_consumer = case Holder of - {ChPid, _} -> none; - Other -> Other - end, - active_consumers = remove_consumers( - ChPid, State#q.active_consumers), - blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, - case should_auto_delete(State1) of - true -> {stop, State1}; - false -> State2 = case Txn of - none -> State1; - _ -> rollback_transaction(Txn, C, - State1) - end, - {ok, requeue_and_run(sets:to_list(ChAckTags), - ensure_expiry_timer(State2))} - end - end. - -cancel_holder(ChPid, ConsumerTag, {ChPid, ConsumerTag}) -> - none; -cancel_holder(_ChPid, _ConsumerTag, Holder) -> - Holder. - -check_exclusive_access({_ChPid, _ConsumerTag}, _ExclusiveConsume, _State) -> - in_use; -check_exclusive_access(none, false, _State) -> - ok; -check_exclusive_access(none, true, State) -> - case is_unused(State) of - true -> ok; - false -> in_use - end. - -is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso - queue:is_empty(State#q.blocked_consumers). - -maybe_send_reply(_ChPid, undefined) -> ok; -maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). - -qname(#q{q = #amqqueue{name = QName}}) -> QName. - -backing_queue_idle_timeout(State = #q{backing_queue = BQ}) -> - maybe_run_queue_via_backing_queue( - fun (BQS) -> {[], BQ:idle_timeout(BQS)} end, State). - -maybe_run_queue_via_backing_queue(Fun, State = #q{backing_queue_state = BQS}) -> - {Guids, BQS1} = Fun(BQS), - run_message_queue( - confirm_messages(Guids, State#q{backing_queue_state = BQS1})). - -commit_transaction(Txn, From, C = #cr{acktags = ChAckTags}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL}) -> - {AckTags, BQS1} = BQ:tx_commit( - Txn, fun () -> gen_server2:reply(From, ok) end, - reset_msg_expiry_fun(TTL), BQS), - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1, txn = none}), - State#q{backing_queue_state = BQS1}. - -rollback_transaction(Txn, C, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {_AckTags, BQS1} = BQ:tx_rollback(Txn, BQS), - %% Iff we removed acktags from the channel record on ack+txn then - %% we would add them back in here. - maybe_store_ch_record(C#cr{txn = none}), - State#q{backing_queue_state = BQS1}. - -subtract_acks(A, B) when is_list(B) -> - lists:foldl(fun sets:del_element/2, A, B). - -reset_msg_expiry_fun(TTL) -> - fun(MsgProps) -> - MsgProps#message_properties{expiry = calculate_msg_expiry(TTL)} - end. - -message_properties(#q{ttl=TTL}) -> - #message_properties{expiry = calculate_msg_expiry(TTL)}. - -calculate_msg_expiry(undefined) -> undefined; -calculate_msg_expiry(TTL) -> now_millis() + (TTL * 1000). - -drop_expired_messages(State = #q{ttl = undefined}) -> - State; -drop_expired_messages(State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - Now = now_millis(), - BQS1 = BQ:dropwhile( - fun (#message_properties{expiry = Expiry}) -> - Now > Expiry - end, BQS), - ensure_ttl_timer(State#q{backing_queue_state = BQS1}). - -ensure_ttl_timer(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL, - ttl_timer_ref = undefined}) - when TTL =/= undefined -> - case BQ:is_empty(BQS) of - true -> State; - false -> TRef = timer:apply_after(TTL, rabbit_amqqueue, drop_expired, - [self()]), - State#q{ttl_timer_ref = TRef} - end; -ensure_ttl_timer(State) -> - State. - -now_millis() -> timer:now_diff(now(), {0,0,0}). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(name, #q{q = #amqqueue{name = Name}}) -> Name; -i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; -i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; -i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(pid, _) -> - self(); -i(owner_pid, #q{q = #amqqueue{exclusive_owner = none}}) -> - ''; -i(owner_pid, #q{q = #amqqueue{exclusive_owner = ExclusiveOwner}}) -> - ExclusiveOwner; -i(exclusive_consumer_pid, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_pid, #q{exclusive_consumer = {ChPid, _ConsumerTag}}) -> - ChPid; -i(exclusive_consumer_tag, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_tag, #q{exclusive_consumer = {_ChPid, ConsumerTag}}) -> - ConsumerTag; -i(messages_ready, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:len(BQS); -i(messages_unacknowledged, _) -> - lists:sum([sets:size(C#cr.acktags) || C <- all_ch_record()]); -i(messages, State) -> - lists:sum([i(Item, State) || Item <- [messages_ready, - messages_unacknowledged]]); -i(consumers, State) -> - queue:len(State#q.active_consumers) + queue:len(State#q.blocked_consumers); -i(memory, _) -> - {memory, M} = process_info(self(), memory), - M; -i(backing_queue_status, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:status(BQS); -i(Item, _) -> - throw({bad_argument, Item}). - -consumers(#q{active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - rabbit_misc:queue_fold( - fun ({ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}, Acc) -> - [{ChPid, ConsumerTag, AckRequired} | Acc] - end, [], queue:join(ActiveConsumers, BlockedConsumers)). - -emit_stats(State) -> - emit_stats(State, []). - -emit_stats(State, Extra) -> - rabbit_event:notify(queue_stats, Extra ++ infos(?STATISTICS_KEYS, State)). - -emit_consumer_created(ChPid, ConsumerTag, Exclusive, AckRequired) -> - rabbit_event:notify(consumer_created, - [{consumer_tag, ConsumerTag}, - {exclusive, Exclusive}, - {ack_required, AckRequired}, - {channel, ChPid}, - {queue, self()}]). - -emit_consumer_deleted(ChPid, ConsumerTag) -> - rabbit_event:notify(consumer_deleted, - [{consumer_tag, ConsumerTag}, - {channel, ChPid}, - {queue, self()}]). - -%--------------------------------------------------------------------------- - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - consumers -> 9; - {maybe_run_queue_via_backing_queue, _Fun} -> 6; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - update_ram_duration -> 8; - delete_immediately -> 8; - {set_ram_duration_target, _Duration} -> 8; - {set_maximum_since_use, _Age} -> 8; - maybe_expire -> 8; - drop_expired -> 8; - emit_stats -> 7; - {ack, _Txn, _MsgIds, _ChPid} -> 7; - {reject, _MsgIds, _Requeue, _ChPid} -> 7; - {notify_sent, _ChPid} -> 7; - {unblock, _ChPid} -> 7; - {maybe_run_queue_via_backing_queue, _Fun} -> 6; - sync_timeout -> 6; - _ -> 0 - end. - -prioritise_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - #q{q = #amqqueue{exclusive_owner = DownPid}}) -> 8; -prioritise_info(_Msg, _State) -> 0. - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = none}}) -> - declare(Recover, From, State); - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = Owner}}) -> - case rpc:call(node(Owner), erlang, is_process_alive, [Owner]) of - true -> erlang:monitor(process, Owner), - declare(Recover, From, State); - _ -> #q{q = #amqqueue{name = QName, durable = IsDurable}, - backing_queue = BQ, backing_queue_state = undefined} = State, - gen_server2:reply(From, not_found), - case Recover of - true -> ok; - _ -> rabbit_log:warning( - "Queue ~p exclusive owner went away~n", [QName]) - end, - BQS = BQ:init(QName, IsDurable, Recover), - %% Rely on terminate to delete the queue. - {stop, normal, State#q{backing_queue_state = BQS}} - end; - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(consumers, _From, State) -> - reply(consumers(State), State); - -handle_call({deliver_immediately, Delivery}, - _From, State) -> - %% Synchronous, "immediate" delivery mode - %% - %% FIXME: Is this correct semantics? - %% - %% I'm worried in particular about the case where an exchange has - %% two queues against a particular routing key, and a message is - %% sent in immediate mode through the binding. In non-immediate - %% mode, both queues get the message, saving it for later if - %% there's noone ready to receive it just now. In immediate mode, - %% should both queues still get the message, somehow, or should - %% just all ready-to-consume queues get the message, with unready - %% queues discarding the message? - %% - {Delivered, _NeedsConfirming, State1} = - attempt_delivery(Delivery, record_confirm_message(Delivery, State)), - reply(Delivered, State1); - -handle_call({deliver, Delivery}, From, State) -> - %% Synchronous, "mandatory" delivery mode. Reply asap. - gen_server2:reply(From, true), - {_Delivered, NewState} = deliver_or_enqueue(Delivery, State), - noreply(NewState); - -handle_call({commit, Txn, ChPid}, From, State) -> - case lookup_ch(ChPid) of - not_found -> reply(ok, State); - C -> noreply(run_message_queue( - commit_transaction(Txn, From, C, State))) - end; - -handle_call({notify_down, ChPid}, _From, State) -> - %% we want to do this synchronously, so that auto_deleted queues - %% are no longer visible by the time we send a response to the - %% client. The queue is ultimately deleted in terminate/2; if we - %% return stop with a reply, terminate/2 will be called by - %% gen_server2 *before* the reply is sent. - case handle_ch_down(ChPid, State) of - {ok, NewState} -> reply(ok, NewState); - {stop, NewState} -> {stop, normal, ok, NewState} - end; - -handle_call({basic_get, ChPid, NoAck}, _From, - State = #q{q = #amqqueue{name = QName}}) -> - AckRequired = not NoAck, - State1 = ensure_expiry_timer(State), - case fetch(AckRequired, drop_expired_messages(State1)) of - {empty, State2} -> - reply(empty, State2); - {{Message, IsDelivered, AckTag, Remaining}, State2} -> - State3 = - case AckRequired of - true -> C = #cr{acktags = ChAckTags} = ch_record(ChPid), - true = maybe_store_ch_record( - C#cr{acktags = - sets:add_element(AckTag, - ChAckTags)}), - State2; - false -> State2 - end, - Msg = {QName, self(), AckTag, IsDelivered, Message}, - reply({ok, Remaining, Msg}, State3) - end; - -handle_call({basic_consume, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg}, - _From, State = #q{exclusive_consumer = ExistingHolder}) -> - case check_exclusive_access(ExistingHolder, ExclusiveConsume, - State) of - in_use -> - reply({error, exclusive_consume_unavailable}, State); - ok -> - C = #cr{consumer_count = ConsumerCount} = ch_record(ChPid), - Consumer = #consumer{tag = ConsumerTag, - ack_required = not NoAck}, - true = maybe_store_ch_record(C#cr{consumer_count = ConsumerCount +1, - limiter_pid = LimiterPid}), - ok = case ConsumerCount of - 0 -> rabbit_limiter:register(LimiterPid, self()); - _ -> ok - end, - ExclusiveConsumer = if ExclusiveConsume -> {ChPid, ConsumerTag}; - true -> ExistingHolder - end, - State1 = State#q{has_had_consumers = true, - exclusive_consumer = ExclusiveConsumer}, - ok = maybe_send_reply(ChPid, OkMsg), - State2 = - case is_ch_blocked(C) of - true -> State1#q{ - blocked_consumers = - add_consumer( - ChPid, Consumer, - State1#q.blocked_consumers)}; - false -> run_message_queue( - State1#q{ - active_consumers = - add_consumer( - ChPid, Consumer, - State1#q.active_consumers)}) - end, - emit_consumer_created(ChPid, ConsumerTag, ExclusiveConsume, - not NoAck), - reply(ok, State2) - end; - -handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, - State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(ChPid) of - not_found -> - ok = maybe_send_reply(ChPid, OkMsg), - reply(ok, State); - C = #cr{consumer_count = ConsumerCount, - limiter_pid = LimiterPid} -> - C1 = C#cr{consumer_count = ConsumerCount -1}, - maybe_store_ch_record( - case ConsumerCount of - 1 -> ok = rabbit_limiter:unregister(LimiterPid, self()), - C1#cr{limiter_pid = undefined}; - _ -> C1 - end), - emit_consumer_deleted(ChPid, ConsumerTag), - ok = maybe_send_reply(ChPid, OkMsg), - NewState = - State#q{exclusive_consumer = cancel_holder(ChPid, - ConsumerTag, - Holder), - active_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.active_consumers), - blocked_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.blocked_consumers)}, - case should_auto_delete(NewState) of - false -> reply(ok, ensure_expiry_timer(NewState)); - true -> {stop, normal, ok, NewState} - end - end; - -handle_call(stat, _From, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS, - active_consumers = ActiveConsumers} = - drop_expired_messages(ensure_expiry_timer(State)), - reply({ok, BQ:len(BQS), queue:len(ActiveConsumers)}, State1); - -handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q{backing_queue_state = BQS, backing_queue = BQ}) -> - IsEmpty = BQ:is_empty(BQS), - IsUnused = is_unused(State), - if - IfEmpty and not(IsEmpty) -> - reply({error, not_empty}, State); - IfUnused and not(IsUnused) -> - reply({error, in_use}, State); - true -> - {stop, normal, {ok, BQ:len(BQS)}, State} - end; - -handle_call(purge, _From, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {Count, BQS1} = BQ:purge(BQS), - reply({ok, Count}, State#q{backing_queue_state = BQS1}); - -handle_call({requeue, AckTags, ChPid}, From, State) -> - gen_server2:reply(From, ok), - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(requeue_and_run(AckTags, State)) - end; - -handle_call({maybe_run_queue_via_backing_queue, Fun}, _From, State) -> - reply(ok, maybe_run_queue_via_backing_queue(Fun, State)). - - -handle_cast({maybe_run_queue_via_backing_queue, Fun}, State) -> - noreply(maybe_run_queue_via_backing_queue(Fun, State)); - -handle_cast(sync_timeout, State) -> - noreply(backing_queue_idle_timeout(State#q{sync_timer_ref = undefined})); - -handle_cast({deliver, Delivery}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - {_Delivered, NewState} = deliver_or_enqueue(Delivery, State), - noreply(NewState); - -handle_cast({ack, Txn, AckTags, ChPid}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - {C1, State1} = - case Txn of - none -> ChAckTags1 = subtract_acks(ChAckTags, AckTags), - NewC = C#cr{acktags = ChAckTags1}, - BQS1 = BQ:ack(AckTags, BQS), - {NewC, State#q{backing_queue_state = BQS1}}; - _ -> BQS1 = BQ:tx_ack(Txn, AckTags, BQS), - {C#cr{txn = Txn}, - State#q{backing_queue_state = BQS1}} - end, - maybe_store_ch_record(C1), - noreply(State1) - end; - -handle_cast({reject, AckTags, Requeue, ChPid}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(case Requeue of - true -> requeue_and_run(AckTags, State); - false -> BQS1 = BQ:ack(AckTags, BQS), - State#q{backing_queue_state = BQS1} - end) - end; - -handle_cast({rollback, Txn, ChPid}, State) -> - noreply(case lookup_ch(ChPid) of - not_found -> State; - C -> rollback_transaction(Txn, C, State) - end); - -handle_cast(delete_immediately, State) -> - {stop, normal, State}; - -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - -handle_cast({notify_sent, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C = #cr{unsent_message_count = Count}) -> - C#cr{unsent_message_count = Count - 1} - end)); - -handle_cast({limit, ChPid, LimiterPid}, State) -> - noreply( - possibly_unblock( - State, ChPid, - fun (C = #cr{consumer_count = ConsumerCount, - limiter_pid = OldLimiterPid, - is_limit_active = Limited}) -> - if ConsumerCount =/= 0 andalso OldLimiterPid == undefined -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, - NewLimited = Limited andalso LimiterPid =/= undefined, - C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({flush, ChPid}, State) -> - ok = rabbit_channel:flushed(ChPid, self()), - noreply(State); - -handle_cast(update_ram_duration, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State#q{rate_timer_ref = just_measured, - backing_queue_state = BQS2}); - -handle_cast({set_ram_duration_target, Duration}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - BQS1 = BQ:set_ram_duration_target(Duration, BQS), - noreply(State#q{backing_queue_state = BQS1}); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_cast(maybe_expire, State) -> - case is_unused(State) of - true -> ?LOGDEBUG("Queue lease expired for ~p~n", [State#q.q]), - {stop, normal, State}; - false -> noreply(ensure_expiry_timer(State)) - end; - -handle_cast(drop_expired, State) -> - noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); - -handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> - %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), - State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - assert_invariant(State1), - {noreply, State1, hibernate}. - -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> - %% Exclusively owned queues must disappear with their owner. In - %% the case of clean shutdown we delete the queue synchronously in - %% the reader - although not required by the spec this seems to - %% match what people expect (see bug 21824). However we need this - %% monitor-and-async- delete in case the connection goes away - %% unexpectedly. - {stop, normal, State}; -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> - case handle_ch_down(DownPid, State) of - {ok, NewState} -> noreply(NewState); - {stop, NewState} -> {stop, normal, NewState} - end; - -handle_info(timeout, State) -> - noreply(backing_queue_idle_timeout(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; - -handle_info(Info, State) -> - ?LOGDEBUG("Info in queue: ~p~n", [Info]), - {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q{backing_queue_state = undefined}) -> - {hibernate, State}; -handle_pre_hibernate(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - stats_timer = StatsTimer}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - BQS3 = BQ:handle_pre_hibernate(BQS2), - rabbit_event:if_enabled(StatsTimer, - fun () -> - emit_stats(State, [{idle_since, now()}]) - end), - State1 = State#q{stats_timer = rabbit_event:stop_stats_timer(StatsTimer), - backing_queue_state = BQS3}, - {hibernate, stop_rate_timer(State1)}. diff --git a/src/rabbit_amqqueue_sup.erl b/src/rabbit_amqqueue_sup.erl deleted file mode 100644 index 1344956e..00000000 --- a/src/rabbit_amqqueue_sup.erl +++ /dev/null @@ -1,38 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_sup). - --behaviour(supervisor2). - --export([start_link/0, start_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor2:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Args) -> - supervisor2:start_child(?SERVER, Args). - -init([]) -> - {ok, {{simple_one_for_one_terminate, 10, 10}, - [{rabbit_amqqueue, {rabbit_amqqueue_process, start_link, []}, - temporary, ?MAX_WAIT, worker, [rabbit_amqqueue_process]}]}}. diff --git a/src/rabbit_auth_backend.erl b/src/rabbit_auth_backend.erl deleted file mode 100644 index 09820c5b..00000000 --- a/src/rabbit_auth_backend.erl +++ /dev/null @@ -1,61 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description proplist as with auth mechanisms, - %% exchanges. Currently unused. - {description, 0}, - - %% Check a user can log in, given a username and a proplist of - %% authentication information (e.g. [{password, Password}]). - %% - %% Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {error, Error} - %% Something went wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {check_user_login, 2}, - - %% Given #user, vhost path and permission, can a user access a vhost? - %% Permission is read - learn of the existence of (only relevant for - %% management plugin) - %% or write - log in - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_vhost_access, 3}, - - %% Given #user, resource and permission, can a user access a resource? - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_resource_access, 3} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_backend_internal.erl b/src/rabbit_auth_backend_internal.erl deleted file mode 100644 index a564480b..00000000 --- a/src/rabbit_auth_backend_internal.erl +++ /dev/null @@ -1,332 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend_internal). --include("rabbit.hrl"). - --behaviour(rabbit_auth_backend). - --export([description/0]). --export([check_user_login/2, check_vhost_access/3, check_resource_access/3]). - --export([add_user/2, delete_user/1, change_password/2, set_admin/1, - clear_admin/1, list_users/0, lookup_user/1, clear_password/1]). --export([make_salt/0, check_password/2, change_password_hash/2, - hash_password/1]). --export([set_permissions/5, clear_permissions/2, - list_permissions/0, list_vhost_permissions/1, list_user_permissions/1, - list_user_vhost_permissions/2]). - --include("rabbit_auth_backend_spec.hrl"). - --ifdef(use_specs). - --type(regexp() :: binary()). - --spec(add_user/2 :: (rabbit_types:username(), rabbit_types:password()) -> 'ok'). --spec(delete_user/1 :: (rabbit_types:username()) -> 'ok'). --spec(change_password/2 :: (rabbit_types:username(), rabbit_types:password()) - -> 'ok'). --spec(clear_password/1 :: (rabbit_types:username()) -> 'ok'). --spec(make_salt/0 :: () -> binary()). --spec(check_password/2 :: (rabbit_types:password(), - rabbit_types:password_hash()) -> boolean()). --spec(change_password_hash/2 :: (rabbit_types:username(), - rabbit_types:password_hash()) -> 'ok'). --spec(hash_password/1 :: (rabbit_types:password()) - -> rabbit_types:password_hash()). --spec(set_admin/1 :: (rabbit_types:username()) -> 'ok'). --spec(clear_admin/1 :: (rabbit_types:username()) -> 'ok'). --spec(list_users/0 :: () -> [{rabbit_types:username(), boolean()}]). --spec(lookup_user/1 :: (rabbit_types:username()) - -> rabbit_types:ok(rabbit_types:internal_user()) - | rabbit_types:error('not_found')). --spec(set_permissions/5 ::(rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()) -> 'ok'). --spec(clear_permissions/2 :: (rabbit_types:username(), rabbit_types:vhost()) - -> 'ok'). --spec(list_permissions/0 :: - () -> [{rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()}]). --spec(list_vhost_permissions/1 :: - (rabbit_types:vhost()) -> [{rabbit_types:username(), - regexp(), regexp(), regexp()}]). --spec(list_user_permissions/1 :: - (rabbit_types:username()) -> [{rabbit_types:vhost(), - regexp(), regexp(), regexp()}]). --spec(list_user_vhost_permissions/2 :: - (rabbit_types:username(), rabbit_types:vhost()) - -> [{regexp(), regexp(), regexp()}]). - --endif. - -%%---------------------------------------------------------------------------- - -%% Implementation of rabbit_auth_backend - -description() -> - [{name, <<"Internal">>}, - {description, <<"Internal user / password database">>}]. - -check_user_login(Username, []) -> - internal_check_user_login(Username, fun(_) -> true end); -check_user_login(Username, [{password, Password}]) -> - internal_check_user_login( - Username, - fun(#internal_user{password_hash = Hash}) -> - check_password(Password, Hash) - end); -check_user_login(Username, AuthProps) -> - exit({unknown_auth_props, Username, AuthProps}). - -internal_check_user_login(Username, Fun) -> - Refused = {refused, "user '~s' - invalid credentials", [Username]}, - case lookup_user(Username) of - {ok, User = #internal_user{is_admin = IsAdmin}} -> - case Fun(User) of - true -> {ok, #user{username = Username, - is_admin = IsAdmin, - auth_backend = ?MODULE, - impl = User}}; - _ -> Refused - end; - {error, not_found} -> - Refused - end. - -check_vhost_access(#user{is_admin = true}, _VHostPath, read) -> - true; - -check_vhost_access(#user{username = Username}, VHostPath, _) -> - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> false; - [_R] -> true - end - end). - -check_resource_access(#user{username = Username}, - #resource{virtual_host = VHostPath, name = Name}, - Permission) -> - case mnesia:dirty_read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> - false; - [#user_permission{permission = P}] -> - PermRegexp = - case element(permission_index(Permission), P) of - %% <<"^$">> breaks Emacs' erlang mode - <<"">> -> <<$^, $$>>; - RE -> RE - end, - case re:run(Name, PermRegexp, [{capture, none}]) of - match -> true; - nomatch -> false - end - end. - -permission_index(configure) -> #permission.configure; -permission_index(write) -> #permission.write; -permission_index(read) -> #permission.read. - -%%---------------------------------------------------------------------------- -%% Manipulation of the user database - -add_user(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_user, Username}) of - [] -> - ok = mnesia:write( - rabbit_user, - #internal_user{username = Username, - password_hash = - hash_password(Password), - is_admin = false}, - write); - _ -> - mnesia:abort({user_already_exists, Username}) - end - end), - rabbit_log:info("Created user ~p~n", [Username]), - R. - -delete_user(Username) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:delete({rabbit_user, Username}), - [ok = mnesia:delete_object( - rabbit_user_permission, R, write) || - R <- mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = '_'}, - permission = '_'}, - write)], - ok - end)), - rabbit_log:info("Deleted user ~p~n", [Username]), - R. - -change_password(Username, Password) -> - change_password_hash(Username, hash_password(Password)). - -clear_password(Username) -> - change_password_hash(Username, <<"">>). - -change_password_hash(Username, PasswordHash) -> - R = update_user(Username, fun(User) -> - User#internal_user{ - password_hash = PasswordHash } - end), - rabbit_log:info("Changed password for user ~p~n", [Username]), - R. - -hash_password(Cleartext) -> - Salt = make_salt(), - Hash = salted_md5(Salt, Cleartext), - <>. - -check_password(Cleartext, <>) -> - Hash =:= salted_md5(Salt, Cleartext). - -make_salt() -> - {A1,A2,A3} = now(), - random:seed(A1, A2, A3), - Salt = random:uniform(16#ffffffff), - <>. - -salted_md5(Salt, Cleartext) -> - Salted = <>, - erlang:md5(Salted). - -set_admin(Username) -> - set_admin(Username, true). - -clear_admin(Username) -> - set_admin(Username, false). - -set_admin(Username, IsAdmin) -> - R = update_user(Username, fun(User) -> - User#internal_user{is_admin = IsAdmin} - end), - rabbit_log:info("Set user admin flag for user ~p to ~p~n", - [Username, IsAdmin]), - R. - -update_user(Username, Fun) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - {ok, User} = lookup_user(Username), - ok = mnesia:write(rabbit_user, Fun(User), write) - end)). - -list_users() -> - [{Username, IsAdmin} || - #internal_user{username = Username, is_admin = IsAdmin} <- - mnesia:dirty_match_object(rabbit_user, #internal_user{_ = '_'})]. - -lookup_user(Username) -> - rabbit_misc:dirty_read({rabbit_user, Username}). - -validate_regexp(RegexpBin) -> - Regexp = binary_to_list(RegexpBin), - case re:compile(Regexp) of - {ok, _} -> ok; - {error, Reason} -> throw({error, {invalid_regexp, Regexp, Reason}}) - end. - -set_permissions(Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm) -> - lists:map(fun validate_regexp/1, [ConfigurePerm, WritePerm, ReadPerm]), - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> ok = mnesia:write( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}}, - write) - end)). - - -clear_permissions(Username, VHostPath) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> - ok = mnesia:delete({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) - end)). - -list_permissions() -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(match_user_vhost('_', '_'))]. - -list_vhost_permissions(VHostPath) -> - [{Username, ConfigurePerm, WritePerm, ReadPerm} || - {Username, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_vhost:with( - VHostPath, match_user_vhost('_', VHostPath)))]. - -list_user_permissions(Username) -> - [{VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {_, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user( - Username, match_user_vhost(Username, '_')))]. - -list_user_vhost_permissions(Username, VHostPath) -> - [{ConfigurePerm, WritePerm, ReadPerm} || - {_, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user_and_vhost( - Username, VHostPath, - match_user_vhost(Username, VHostPath)))]. - -list_permissions(QueryThunk) -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - #user_permission{user_vhost = #user_vhost{username = Username, - virtual_host = VHostPath}, - permission = #permission{ configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}} <- - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction(QueryThunk)]. - -match_user_vhost(Username, VHostPath) -> - fun () -> mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = '_'}, - read) - end. diff --git a/src/rabbit_auth_mechanism.erl b/src/rabbit_auth_mechanism.erl deleted file mode 100644 index 1d14f9f0..00000000 --- a/src/rabbit_auth_mechanism.erl +++ /dev/null @@ -1,42 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description. - {description, 0}, - - %% Called before authentication starts. Should create a state - %% object to be passed through all the stages of authentication. - {init, 1}, - - %% Handle a stage of authentication. Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {challenge, Challenge, NextState} - %% Another round is needed. Here's the state I want next time. - %% {protocol_error, Msg, Args} - %% Client got the protocol wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {handle_response, 2} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_mechanism_amqplain.erl b/src/rabbit_auth_mechanism_amqplain.erl deleted file mode 100644 index 5e422eee..00000000 --- a/src/rabbit_auth_mechanism_amqplain.erl +++ /dev/null @@ -1,55 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_amqplain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism amqplain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"AMQPLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% AMQPLAIN, as used by Qpid Python test suite. The 0-8 spec actually -%% defines this as PLAIN, but in 0-9 that definition is gone, instead -%% referring generically to "SASL security mechanism", i.e. the above. - -description() -> - [{name, <<"AMQPLAIN">>}, - {description, <<"QPid AMQPLAIN mechanism">>}]. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - LoginTable = rabbit_binary_parser:parse_table(Response), - case {lists:keysearch(<<"LOGIN">>, 1, LoginTable), - lists:keysearch(<<"PASSWORD">>, 1, LoginTable)} of - {{value, {_, longstr, User}}, - {value, {_, longstr, Pass}}} -> - rabbit_access_control:check_user_pass_login(User, Pass); - _ -> - {protocol_error, - "AMQPLAIN auth info ~w is missing LOGIN or PASSWORD field", - [LoginTable]} - end. diff --git a/src/rabbit_auth_mechanism_cr_demo.erl b/src/rabbit_auth_mechanism_cr_demo.erl deleted file mode 100644 index 7fd20f8b..00000000 --- a/src/rabbit_auth_mechanism_cr_demo.erl +++ /dev/null @@ -1,59 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_cr_demo). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism cr-demo"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"RABBIT-CR-DEMO">>, - ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --record(state, {username = undefined}). - -%% Provides equivalent security to PLAIN but demos use of Connection.Secure(Ok) -%% START-OK: Username -%% SECURE: "Please tell me your password" -%% SECURE-OK: "My password is ~s", [Password] - -description() -> - [{name, <<"RABBIT-CR-DEMO">>}, - {description, <<"RabbitMQ Demo challenge-response authentication " - "mechanism">>}]. - -init(_Sock) -> - #state{}. - -handle_response(Response, State = #state{username = undefined}) -> - {challenge, <<"Please tell me your password">>, - State#state{username = Response}}; - -handle_response(Response, #state{username = Username}) -> - case Response of - <<"My password is ", Password/binary>> -> - rabbit_access_control:check_user_pass_login(Username, Password); - _ -> - {protocol_error, "Invalid response '~s'", [Response]} - end. diff --git a/src/rabbit_auth_mechanism_plain.erl b/src/rabbit_auth_mechanism_plain.erl deleted file mode 100644 index 1ca07018..00000000 --- a/src/rabbit_auth_mechanism_plain.erl +++ /dev/null @@ -1,76 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_plain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism plain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"PLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% SASL PLAIN, as used by the Qpid Java client and our clients. Also, -%% apparently, by OpenAMQ. - -%% TODO: once the minimum erlang becomes R13B03, reimplement this -%% using the binary module - that makes use of BIFs to do binary -%% matching and will thus be much faster. - -description() -> - [{name, <<"PLAIN">>}, - {description, <<"SASL PLAIN authentication mechanism">>}]. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - case extract_user_pass(Response) of - {ok, User, Pass} -> - rabbit_access_control:check_user_pass_login(User, Pass); - error -> - {protocol_error, "response ~p invalid", [Response]} - end. - -extract_user_pass(Response) -> - case extract_elem(Response) of - {ok, User, Response1} -> case extract_elem(Response1) of - {ok, Pass, <<>>} -> {ok, User, Pass}; - _ -> error - end; - error -> error - end. - -extract_elem(<<0:8, Rest/binary>>) -> - Count = next_null_pos(Rest), - <> = Rest, - {ok, Elem, Rest1}; -extract_elem(_) -> - error. - -next_null_pos(Bin) -> - next_null_pos(Bin, 0). - -next_null_pos(<<>>, Count) -> Count; -next_null_pos(<<0:8, _Rest/binary>>, Count) -> Count; -next_null_pos(<<_:8, Rest/binary>>, Count) -> next_null_pos(Rest, Count + 1). diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl deleted file mode 100644 index 6a21e10f..00000000 --- a/src/rabbit_backing_queue.erl +++ /dev/null @@ -1,128 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_backing_queue). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% Called on startup with a list of durable queue names. The - %% queues aren't being started at this point, but this call - %% allows the backing queue to perform any checking necessary for - %% the consistency of those queues, or initialise any other - %% shared resources. - {start, 1}, - - %% Called to tear down any state/resources. NB: Implementations - %% should not depend on this function being called on shutdown - %% and instead should hook into the rabbit supervision hierarchy. - {stop, 0}, - - %% Initialise the backing queue and its state. - {init, 3}, - - %% Called on queue shutdown when queue isn't being deleted. - {terminate, 1}, - - %% Called when the queue is terminating and needs to delete all - %% its content. - {delete_and_terminate, 1}, - - %% Remove all messages in the queue, but not messages which have - %% been fetched and are pending acks. - {purge, 1}, - - %% Publish a message. - {publish, 3}, - - %% Called for messages which have already been passed straight - %% out to a client. The queue will be empty for these calls - %% (i.e. saves the round trip through the backing queue). - {publish_delivered, 4}, - - %% Drop messages from the head of the queue while the supplied - %% predicate returns true. - {dropwhile, 2}, - - %% Produce the next message. - {fetch, 2}, - - %% Acktags supplied are for messages which can now be forgotten - %% about. Must return 1 guid per Ack, in the same order as Acks. - {ack, 2}, - - %% A publish, but in the context of a transaction. - {tx_publish, 4}, - - %% Acks, but in the context of a transaction. - {tx_ack, 3}, - - %% Undo anything which has been done in the context of the - %% specified transaction. - {tx_rollback, 2}, - - %% Commit a transaction. The Fun passed in must be called once - %% the messages have really been commited. This CPS permits the - %% possibility of commit coalescing. - {tx_commit, 4}, - - %% Reinsert messages into the queue which have already been - %% delivered and were pending acknowledgement. - {requeue, 3}, - - %% How long is my queue? - {len, 1}, - - %% Is my queue empty? - {is_empty, 1}, - - %% For the next three functions, the assumption is that you're - %% monitoring something like the ingress and egress rates of the - %% queue. The RAM duration is thus the length of time represented - %% by the messages held in RAM given the current rates. If you - %% want to ignore all of this stuff, then do so, and return 0 in - %% ram_duration/1. - - %% The target is to have no more messages in RAM than indicated - %% by the duration and the current queue rates. - {set_ram_duration_target, 2}, - - %% Optionally recalculate the duration internally (likely to be - %% just update your internal rates), and report how many seconds - %% the messages in RAM represent given the current rates of the - %% queue. - {ram_duration, 1}, - - %% Should 'idle_timeout' be called as soon as the queue process - %% can manage (either on an empty mailbox, or when a timer - %% fires)? - {needs_idle_timeout, 1}, - - %% Called (eventually) after needs_idle_timeout returns - %% 'true'. Note this may be called more than once for each 'true' - %% returned from needs_idle_timeout. - {idle_timeout, 1}, - - %% Called immediately before the queue hibernates. - {handle_pre_hibernate, 1}, - - %% Exists for debugging purposes, to be able to expose state via - %% rabbitmqctl list_queues backing_queue_status - {status, 1} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl deleted file mode 100644 index c5bd9575..00000000 --- a/src/rabbit_basic.erl +++ /dev/null @@ -1,156 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_basic). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([publish/1, message/4, properties/1, delivery/5]). --export([publish/4, publish/7]). --export([build_content/2, from_content/1]). --export([is_message_persistent/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(properties_input() :: - (rabbit_framing:amqp_property_record() | [{atom(), any()}])). --type(publish_result() :: - ({ok, rabbit_router:routing_result(), [pid()]} - | rabbit_types:error('not_found'))). - --spec(publish/1 :: - (rabbit_types:delivery()) -> publish_result()). --spec(delivery/5 :: - (boolean(), boolean(), rabbit_types:maybe(rabbit_types:txn()), - rabbit_types:message(), undefined | integer()) -> - rabbit_types:delivery()). --spec(message/4 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - properties_input(), binary()) -> - (rabbit_types:message() | rabbit_types:error(any()))). --spec(properties/1 :: - (properties_input()) -> rabbit_framing:amqp_property_record()). --spec(publish/4 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - properties_input(), binary()) -> publish_result()). --spec(publish/7 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - boolean(), boolean(), rabbit_types:maybe(rabbit_types:txn()), - properties_input(), binary()) -> publish_result()). --spec(build_content/2 :: (rabbit_framing:amqp_property_record(), binary()) -> - rabbit_types:content()). --spec(from_content/1 :: (rabbit_types:content()) -> - {rabbit_framing:amqp_property_record(), binary()}). --spec(is_message_persistent/1 :: (rabbit_types:decoded_content()) -> - (boolean() | - {'invalid', non_neg_integer()})). - --endif. - -%%---------------------------------------------------------------------------- - -publish(Delivery = #delivery{ - message = #basic_message{exchange_name = ExchangeName}}) -> - case rabbit_exchange:lookup(ExchangeName) of - {ok, X} -> - {RoutingRes, DeliveredQPids} = rabbit_exchange:publish(X, Delivery), - {ok, RoutingRes, DeliveredQPids}; - Other -> - Other - end. - -delivery(Mandatory, Immediate, Txn, Message, MsgSeqNo) -> - #delivery{mandatory = Mandatory, immediate = Immediate, txn = Txn, - sender = self(), message = Message, msg_seq_no = MsgSeqNo}. - -build_content(Properties, BodyBin) -> - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - #content{class_id = ClassId, - properties = Properties, - properties_bin = none, - protocol = none, - payload_fragments_rev = [BodyBin]}. - -from_content(Content) -> - #content{class_id = ClassId, - properties = Props, - payload_fragments_rev = FragmentsRev} = - rabbit_binary_parser:ensure_content_decoded(Content), - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - {Props, list_to_binary(lists:reverse(FragmentsRev))}. - -message(ExchangeName, RoutingKeyBin, RawProperties, BodyBin) -> - Properties = properties(RawProperties), - Content = build_content(Properties, BodyBin), - case is_message_persistent(Content) of - {invalid, Other} -> - {error, {invalid_delivery_mode, Other}}; - IsPersistent when is_boolean(IsPersistent) -> - #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKeyBin, - content = Content, - guid = rabbit_guid:guid(), - is_persistent = IsPersistent} - end. - -properties(P = #'P_basic'{}) -> - P; -properties(P) when is_list(P) -> - %% Yes, this is O(length(P) * record_info(size, 'P_basic') / 2), - %% i.e. slow. Use the definition of 'P_basic' directly if - %% possible! - lists:foldl(fun ({Key, Value}, Acc) -> - case indexof(record_info(fields, 'P_basic'), Key) of - 0 -> throw({unknown_basic_property, Key}); - N -> setelement(N + 1, Acc, Value) - end - end, #'P_basic'{}, P). - -indexof(L, Element) -> indexof(L, Element, 1). - -indexof([], _Element, _N) -> 0; -indexof([Element | _Rest], Element, N) -> N; -indexof([_ | Rest], Element, N) -> indexof(Rest, Element, N + 1). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(ExchangeName, RoutingKeyBin, Properties, BodyBin) -> - publish(ExchangeName, RoutingKeyBin, false, false, none, Properties, - BodyBin). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(ExchangeName, RoutingKeyBin, Mandatory, Immediate, Txn, Properties, - BodyBin) -> - publish(delivery(Mandatory, Immediate, Txn, - message(ExchangeName, RoutingKeyBin, - properties(Properties), BodyBin), - undefined)). - -is_message_persistent(#content{properties = #'P_basic'{ - delivery_mode = Mode}}) -> - case Mode of - 1 -> false; - 2 -> true; - undefined -> false; - Other -> {invalid, Other} - end. diff --git a/src/rabbit_binary_generator.erl b/src/rabbit_binary_generator.erl deleted file mode 100644 index d67c7f58..00000000 --- a/src/rabbit_binary_generator.erl +++ /dev/null @@ -1,340 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_generator). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - -% EMPTY_CONTENT_BODY_FRAME_SIZE, 8 = 1 + 2 + 4 + 1 -% - 1 byte of frame type -% - 2 bytes of channel number -% - 4 bytes of frame payload length -% - 1 byte of payload trailer FRAME_END byte -% See definition of check_empty_content_body_frame_size/0, an assertion called at startup. --define(EMPTY_CONTENT_BODY_FRAME_SIZE, 8). - --export([build_simple_method_frame/3, - build_simple_content_frames/4, - build_heartbeat_frame/0]). --export([generate_table/1, encode_properties/2]). --export([check_empty_content_body_frame_size/0]). --export([ensure_content_encoded/2, clear_encoded_content/1]). --export([map_exception/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame() :: [binary()]). - --spec(build_simple_method_frame/3 :: - (rabbit_channel:channel_number(), rabbit_framing:amqp_method_record(), - rabbit_types:protocol()) - -> frame()). --spec(build_simple_content_frames/4 :: - (rabbit_channel:channel_number(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> [frame()]). --spec(build_heartbeat_frame/0 :: () -> frame()). --spec(generate_table/1 :: (rabbit_framing:amqp_table()) -> binary()). --spec(encode_properties/2 :: - ([rabbit_framing:amqp_property_type()], [any()]) -> binary()). --spec(check_empty_content_body_frame_size/0 :: () -> 'ok'). --spec(ensure_content_encoded/2 :: - (rabbit_types:content(), rabbit_types:protocol()) -> - rabbit_types:encoded_content()). --spec(clear_encoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:unencoded_content()). --spec(map_exception/3 :: (rabbit_channel:channel_number(), - rabbit_types:amqp_error() | any(), - rabbit_types:protocol()) -> - {boolean(), - rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record()}). - --endif. - -%%---------------------------------------------------------------------------- - -build_simple_method_frame(ChannelInt, MethodRecord, Protocol) -> - MethodFields = Protocol:encode_method_fields(MethodRecord), - MethodName = rabbit_misc:method_record_type(MethodRecord), - {ClassId, MethodId} = Protocol:method_id(MethodName), - create_frame(1, ChannelInt, [<>, MethodFields]). - -build_simple_content_frames(ChannelInt, Content, FrameMax, Protocol) -> - #content{class_id = ClassId, - properties_bin = ContentPropertiesBin, - payload_fragments_rev = PayloadFragmentsRev} = - ensure_content_encoded(Content, Protocol), - {BodySize, ContentFrames} = - build_content_frames(PayloadFragmentsRev, FrameMax, ChannelInt), - HeaderFrame = create_frame(2, ChannelInt, - [<>, - ContentPropertiesBin]), - [HeaderFrame | ContentFrames]. - -build_content_frames(FragsRev, FrameMax, ChannelInt) -> - BodyPayloadMax = if FrameMax == 0 -> - iolist_size(FragsRev); - true -> - FrameMax - ?EMPTY_CONTENT_BODY_FRAME_SIZE - end, - build_content_frames(0, [], BodyPayloadMax, [], - lists:reverse(FragsRev), BodyPayloadMax, ChannelInt). - -build_content_frames(SizeAcc, FramesAcc, _FragSizeRem, [], - [], _BodyPayloadMax, _ChannelInt) -> - {SizeAcc, lists:reverse(FramesAcc)}; -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - Frags, BodyPayloadMax, ChannelInt) - when FragSizeRem == 0 orelse Frags == [] -> - Frame = create_frame(3, ChannelInt, lists:reverse(FragAcc)), - FrameSize = BodyPayloadMax - FragSizeRem, - build_content_frames(SizeAcc + FrameSize, [Frame | FramesAcc], - BodyPayloadMax, [], Frags, BodyPayloadMax, ChannelInt); -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - [Frag | Frags], BodyPayloadMax, ChannelInt) -> - Size = size(Frag), - {NewFragSizeRem, NewFragAcc, NewFrags} = - if Size == 0 -> {FragSizeRem, FragAcc, Frags}; - Size =< FragSizeRem -> {FragSizeRem - Size, [Frag | FragAcc], Frags}; - true -> <> = - Frag, - {0, [Head | FragAcc], [Tail | Frags]} - end, - build_content_frames(SizeAcc, FramesAcc, NewFragSizeRem, NewFragAcc, - NewFrags, BodyPayloadMax, ChannelInt). - -build_heartbeat_frame() -> - create_frame(?FRAME_HEARTBEAT, 0, <<>>). - -create_frame(TypeInt, ChannelInt, PayloadBin) when is_binary(PayloadBin) -> - [<>, PayloadBin, <>]; -create_frame(TypeInt, ChannelInt, Payload) -> - create_frame(TypeInt, ChannelInt, list_to_binary(Payload)). - -%% table_field_to_binary supports the AMQP 0-8/0-9 standard types, S, -%% I, D, T and F, as well as the QPid extensions b, d, f, l, s, t, x, -%% and V. - -table_field_to_binary({FName, Type, Value}) -> - [short_string_to_binary(FName) | field_value_to_binary(Type, Value)]. - -field_value_to_binary(longstr, Value) -> - ["S", long_string_to_binary(Value)]; - -field_value_to_binary(signedint, Value) -> - ["I", <>]; - -field_value_to_binary(decimal, {Before, After}) -> - ["D", Before, <>]; - -field_value_to_binary(timestamp, Value) -> - ["T", <>]; - -field_value_to_binary(table, Value) -> - ["F", table_to_binary(Value)]; - -field_value_to_binary(array, Value) -> - ["A", array_to_binary(Value)]; - -field_value_to_binary(byte, Value) -> - ["b", <>]; - -field_value_to_binary(double, Value) -> - ["d", <>]; - -field_value_to_binary(float, Value) -> - ["f", <>]; - -field_value_to_binary(long, Value) -> - ["l", <>]; - -field_value_to_binary(short, Value) -> - ["s", <>]; - -field_value_to_binary(bool, Value) -> - ["t", if Value -> 1; true -> 0 end]; - -field_value_to_binary(binary, Value) -> - ["x", long_string_to_binary(Value)]; - -field_value_to_binary(void, _Value) -> - ["V"]. - -table_to_binary(Table) when is_list(Table) -> - BinTable = generate_table(Table), - [<<(size(BinTable)):32>>, BinTable]. - -array_to_binary(Array) when is_list(Array) -> - BinArray = generate_array(Array), - [<<(size(BinArray)):32>>, BinArray]. - -generate_table(Table) when is_list(Table) -> - list_to_binary(lists:map(fun table_field_to_binary/1, Table)). - -generate_array(Array) when is_list(Array) -> - list_to_binary(lists:map( - fun ({Type, Value}) -> field_value_to_binary(Type, Value) end, - Array)). - -short_string_to_binary(String) when is_binary(String) -> - Len = size(String), - if Len < 256 -> [<<(size(String)):8>>, String]; - true -> exit(content_properties_shortstr_overflow) - end; -short_string_to_binary(String) -> - StringLength = length(String), - if StringLength < 256 -> [<>, String]; - true -> exit(content_properties_shortstr_overflow) - end. - -long_string_to_binary(String) when is_binary(String) -> - [<<(size(String)):32>>, String]; -long_string_to_binary(String) -> - [<<(length(String)):32>>, String]. - -encode_properties([], []) -> - <<0, 0>>; -encode_properties(TypeList, ValueList) -> - encode_properties(0, TypeList, ValueList, 0, [], []). - -encode_properties(_Bit, [], [], FirstShortAcc, FlagsAcc, PropsAcc) -> - list_to_binary([lists:reverse(FlagsAcc), <>, lists:reverse(PropsAcc)]); -encode_properties(_Bit, [], _ValueList, _FirstShortAcc, _FlagsAcc, _PropsAcc) -> - exit(content_properties_values_overflow); -encode_properties(15, TypeList, ValueList, FirstShortAcc, FlagsAcc, PropsAcc) -> - NewFlagsShort = FirstShortAcc bor 1, % set the continuation low bit - encode_properties(0, TypeList, ValueList, 0, [<> | FlagsAcc], PropsAcc); -encode_properties(Bit, [bit | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - true -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), FlagsAcc, PropsAcc); - false -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - Other -> exit({content_properties_illegal_bit_value, Other}) - end; -encode_properties(Bit, [T | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - undefined -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - _ -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), - FlagsAcc, - [encode_property(T, Value) | PropsAcc]) - end. - -encode_property(shortstr, String) -> - Len = size(String), - if Len < 256 -> <>; - true -> exit(content_properties_shortstr_overflow) - end; -encode_property(longstr, String) -> - Len = size(String), <>; -encode_property(octet, Int) -> - <>; -encode_property(shortint, Int) -> - <>; -encode_property(longint, Int) -> - <>; -encode_property(longlongint, Int) -> - <>; -encode_property(timestamp, Int) -> - <>; -encode_property(table, Table) -> - table_to_binary(Table). - -check_empty_content_body_frame_size() -> - %% Intended to ensure that EMPTY_CONTENT_BODY_FRAME_SIZE is - %% defined correctly. - ComputedSize = size(list_to_binary(create_frame(?FRAME_BODY, 0, <<>>))), - if ComputedSize == ?EMPTY_CONTENT_BODY_FRAME_SIZE -> - ok; - true -> - exit({incorrect_empty_content_body_frame_size, - ComputedSize, ?EMPTY_CONTENT_BODY_FRAME_SIZE}) - end. - -ensure_content_encoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}, Protocol) - when PropBin =/= none -> - Content; -ensure_content_encoded(Content = #content{properties = none, - properties_bin = PropBin, - protocol = Protocol}, Protocol1) - when PropBin =/= none -> - Props = Protocol:decode_properties(Content#content.class_id, PropBin), - Content#content{properties = Props, - properties_bin = Protocol1:encode_properties(Props), - protocol = Protocol1}; -ensure_content_encoded(Content = #content{properties = Props}, Protocol) - when Props =/= none -> - Content#content{properties_bin = Protocol:encode_properties(Props), - protocol = Protocol}. - -clear_encoded_content(Content = #content{properties_bin = none, - protocol = none}) -> - Content; -clear_encoded_content(Content = #content{properties = none}) -> - %% Only clear when we can rebuild the properties_bin later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_encoded_content(Content = #content{}) -> - Content#content{properties_bin = none, protocol = none}. - -%% NB: this function is also used by the Erlang client -map_exception(Channel, Reason, Protocol) -> - {SuggestedClose, ReplyCode, ReplyText, FailedMethod} = - lookup_amqp_exception(Reason, Protocol), - ShouldClose = SuggestedClose orelse (Channel == 0), - {ClassId, MethodId} = case FailedMethod of - {_, _} -> FailedMethod; - none -> {0, 0}; - _ -> Protocol:method_id(FailedMethod) - end, - {CloseChannel, CloseMethod} = - case ShouldClose of - true -> {0, #'connection.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}}; - false -> {Channel, #'channel.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}} - end, - {ShouldClose, CloseChannel, CloseMethod}. - -lookup_amqp_exception(#amqp_error{name = Name, - explanation = Expl, - method = Method}, - Protocol) -> - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(Name), - ExplBin = amqp_exception_explanation(Text, Expl), - {ShouldClose, Code, ExplBin, Method}; -lookup_amqp_exception(Other, Protocol) -> - rabbit_log:warning("Non-AMQP exit reason '~p'~n", [Other]), - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(internal_error), - {ShouldClose, Code, Text, none}. - -amqp_exception_explanation(Text, Expl) -> - ExplBin = list_to_binary(Expl), - CompleteTextBin = <>, - if size(CompleteTextBin) > 255 -> <>; - true -> CompleteTextBin - end. diff --git a/src/rabbit_binary_parser.erl b/src/rabbit_binary_parser.erl deleted file mode 100644 index 88026bab..00000000 --- a/src/rabbit_binary_parser.erl +++ /dev/null @@ -1,165 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_parser). - --include("rabbit.hrl"). - --export([parse_table/1, parse_properties/2]). --export([ensure_content_decoded/1, clear_decoded_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(parse_table/1 :: (binary()) -> rabbit_framing:amqp_table()). --spec(parse_properties/2 :: - ([rabbit_framing:amqp_property_type()], binary()) -> [any()]). --spec(ensure_content_decoded/1 :: - (rabbit_types:content()) -> rabbit_types:decoded_content()). --spec(clear_decoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:undecoded_content()). - --endif. - -%%---------------------------------------------------------------------------- - -%% parse_table supports the AMQP 0-8/0-9 standard types, S, I, D, T -%% and F, as well as the QPid extensions b, d, f, l, s, t, x, and V. - -parse_table(<<>>) -> - []; -parse_table(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{NameString, Type, Value} | parse_table(Rest)]. - -parse_array(<<>>) -> - []; -parse_array(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{Type, Value} | parse_array(Rest)]. - -parse_field_value(<<"S", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {longstr, ValueString, Rest}; - -parse_field_value(<<"I", Value:32/signed, Rest/binary>>) -> - {signedint, Value, Rest}; - -parse_field_value(<<"D", Before:8/unsigned, After:32/unsigned, Rest/binary>>) -> - {decimal, {Before, After}, Rest}; - -parse_field_value(<<"T", Value:64/unsigned, Rest/binary>>) -> - {timestamp, Value, Rest}; - -parse_field_value(<<"F", VLen:32/unsigned, Table:VLen/binary, Rest/binary>>) -> - {table, parse_table(Table), Rest}; - -parse_field_value(<<"A", VLen:32/unsigned, Array:VLen/binary, Rest/binary>>) -> - {array, parse_array(Array), Rest}; - -parse_field_value(<<"b", Value:8/unsigned, Rest/binary>>) -> - {byte, Value, Rest}; - -parse_field_value(<<"d", Value:64/float, Rest/binary>>) -> - {double, Value, Rest}; - -parse_field_value(<<"f", Value:32/float, Rest/binary>>) -> - {float, Value, Rest}; - -parse_field_value(<<"l", Value:64/signed, Rest/binary>>) -> - {long, Value, Rest}; - -parse_field_value(<<"s", Value:16/signed, Rest/binary>>) -> - {short, Value, Rest}; - -parse_field_value(<<"t", Value:8/unsigned, Rest/binary>>) -> - {bool, (Value /= 0), Rest}; - -parse_field_value(<<"x", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {binary, ValueString, Rest}; - -parse_field_value(<<"V", Rest/binary>>) -> - {void, undefined, Rest}. - - -parse_properties([], _PropBin) -> - []; -parse_properties(TypeList, PropBin) -> - FlagCount = length(TypeList), - %% round up to the nearest multiple of 15 bits, since the 16th bit - %% in each short is a "continuation" bit. - FlagsLengthBytes = trunc((FlagCount + 14) / 15) * 2, - <> = PropBin, - <> = Flags, - parse_properties(0, TypeList, [], FirstShort, Remainder, Properties). - -parse_properties(_Bit, [], Acc, _FirstShort, - _Remainder, <<>>) -> - lists:reverse(Acc); -parse_properties(_Bit, [], _Acc, _FirstShort, - _Remainder, _LeftoverBin) -> - exit(content_properties_binary_overflow); -parse_properties(15, TypeList, Acc, _OldFirstShort, - <>, Properties) -> - parse_properties(0, TypeList, Acc, NewFirstShort, Remainder, Properties); -parse_properties(Bit, [Type | TypeListRest], Acc, FirstShort, - Remainder, Properties) -> - {Value, Rest} = - if (FirstShort band (1 bsl (15 - Bit))) /= 0 -> - parse_property(Type, Properties); - Type == bit -> {false , Properties}; - true -> {undefined, Properties} - end, - parse_properties(Bit + 1, TypeListRest, [Value | Acc], FirstShort, - Remainder, Rest). - -parse_property(shortstr, <>) -> - {String, Rest}; -parse_property(longstr, <>) -> - {String, Rest}; -parse_property(octet, <>) -> - {Int, Rest}; -parse_property(shortint, <>) -> - {Int, Rest}; -parse_property(longint, <>) -> - {Int, Rest}; -parse_property(longlongint, <>) -> - {Int, Rest}; -parse_property(timestamp, <>) -> - {Int, Rest}; -parse_property(bit, Rest) -> - {true, Rest}; -parse_property(table, <>) -> - {parse_table(Table), Rest}. - -ensure_content_decoded(Content = #content{properties = Props}) - when Props =/= none -> - Content; -ensure_content_decoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}) - when PropBin =/= none -> - Content#content{properties = Protocol:decode_properties( - Content#content.class_id, PropBin)}. - -clear_decoded_content(Content = #content{properties = none}) -> - Content; -clear_decoded_content(Content = #content{properties_bin = none}) -> - %% Only clear when we can rebuild the properties later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_decoded_content(Content = #content{}) -> - Content#content{properties = none}. diff --git a/src/rabbit_binding.erl b/src/rabbit_binding.erl deleted file mode 100644 index 96a22dca..00000000 --- a/src/rabbit_binding.erl +++ /dev/null @@ -1,422 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binding). --include("rabbit.hrl"). - --export([recover/0, exists/1, add/1, remove/1, add/2, remove/2, list/1]). --export([list_for_source/1, list_for_destination/1, - list_for_source_and_destination/2]). --export([new_deletions/0, combine_deletions/2, add_deletion/3, - process_deletions/2]). --export([info_keys/0, info/1, info/2, info_all/1, info_all/2]). -%% these must all be run inside a mnesia tx --export([has_for_source/1, remove_for_source/1, - remove_for_destination/1, remove_transient_for_destination/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([key/0, deletions/0]). - --type(key() :: binary()). - --type(bind_errors() :: rabbit_types:error('source_not_found' | - 'destination_not_found' | - 'source_and_destination_not_found')). --type(bind_res() :: 'ok' | bind_errors()). --type(inner_fun() :: - fun((rabbit_types:exchange(), - rabbit_types:exchange() | rabbit_types:amqqueue()) -> - rabbit_types:ok_or_error(rabbit_types:amqp_error()))). --type(bindings() :: [rabbit_types:binding()]). --type(add_res() :: bind_res() | rabbit_misc:const(bind_res())). --type(bind_or_error() :: bind_res() | rabbit_types:error('binding_not_found')). --type(remove_res() :: bind_or_error() | rabbit_misc:const(bind_or_error())). - --opaque(deletions() :: dict()). - --spec(recover/0 :: () -> [rabbit_types:binding()]). --spec(exists/1 :: (rabbit_types:binding()) -> boolean() | bind_errors()). --spec(add/1 :: (rabbit_types:binding()) -> add_res()). --spec(remove/1 :: (rabbit_types:binding()) -> remove_res()). --spec(add/2 :: (rabbit_types:binding(), inner_fun()) -> add_res()). --spec(remove/2 :: (rabbit_types:binding(), inner_fun()) -> remove_res()). --spec(list/1 :: (rabbit_types:vhost()) -> bindings()). --spec(list_for_source/1 :: - (rabbit_types:binding_source()) -> bindings()). --spec(list_for_destination/1 :: - (rabbit_types:binding_destination()) -> bindings()). --spec(list_for_source_and_destination/2 :: - (rabbit_types:binding_source(), rabbit_types:binding_destination()) -> - bindings()). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:binding()) -> rabbit_types:infos()). --spec(info/2 :: (rabbit_types:binding(), rabbit_types:info_keys()) -> - rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(has_for_source/1 :: (rabbit_types:binding_source()) -> boolean()). --spec(remove_for_source/1 :: (rabbit_types:binding_source()) -> bindings()). --spec(remove_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(remove_transient_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(process_deletions/2 :: (deletions(), boolean()) -> 'ok'). --spec(combine_deletions/2 :: (deletions(), deletions()) -> deletions()). --spec(add_deletion/3 :: (rabbit_exchange:name(), - {'undefined' | rabbit_types:exchange(), - 'deleted' | 'not_deleted', - bindings()}, deletions()) -> deletions()). --spec(new_deletions/0 :: () -> deletions()). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]). - -recover() -> - rabbit_misc:table_fold( - fun (Route = #route{binding = B}, Acc) -> - {_, ReverseRoute} = route_with_reverse(Route), - ok = mnesia:write(rabbit_route, Route, write), - ok = mnesia:write(rabbit_reverse_route, ReverseRoute, write), - [B | Acc] - end, [], rabbit_durable_route). - -exists(Binding) -> - binding_action( - Binding, fun (_Src, _Dst, B) -> - rabbit_misc:const(mnesia:read({rabbit_route, B}) /= []) - end). - -add(Binding) -> add(Binding, fun (_Src, _Dst) -> ok end). - -remove(Binding) -> remove(Binding, fun (_Src, _Dst) -> ok end). - -add(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - %% this argument is used to check queue exclusivity; - %% in general, we want to fail on that in preference to - %% anything else - case InnerFun(Src, Dst) of - ok -> - case mnesia:read({rabbit_route, B}) of - [] -> ok = sync_binding(B, all_durable([Src, Dst]), - fun mnesia:write/3), - fun (Tx) -> - ok = rabbit_exchange:callback( - Src, add_binding, [Tx, Src, B]), - rabbit_event:notify_if( - not Tx, binding_created, info(B)) - end; - [_] -> fun rabbit_misc:const_ok/1 - end; - {error, _} = Err -> - rabbit_misc:const(Err) - end - end). - -remove(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - Result = - case mnesia:match_object(rabbit_route, #route{binding = B}, - write) of - [] -> - {error, binding_not_found}; - [_] -> - case InnerFun(Src, Dst) of - ok -> - ok = sync_binding(B, all_durable([Src, Dst]), - fun mnesia:delete_object/3), - {ok, maybe_auto_delete(B#binding.source, - [B], new_deletions())}; - {error, _} = E -> - E - end - end, - case Result of - {error, _} = Err -> - rabbit_misc:const(Err); - {ok, Deletions} -> - fun (Tx) -> ok = process_deletions(Deletions, Tx) end - end - end). - -list(VHostPath) -> - VHostResource = rabbit_misc:r(VHostPath, '_'), - Route = #route{binding = #binding{source = VHostResource, - destination = VHostResource, - _ = '_'}, - _ = '_'}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_source(SrcName) -> - Route = #route{binding = #binding{source = SrcName, _ = '_'}}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_destination(DstName) -> - Route = #route{binding = #binding{destination = DstName, _ = '_'}}, - [reverse_binding(B) || #reverse_route{reverse_binding = B} <- - mnesia:dirty_match_object(rabbit_reverse_route, - reverse_route(Route))]. - -list_for_source_and_destination(SrcName, DstName) -> - Route = #route{binding = #binding{source = SrcName, - destination = DstName, - _ = '_'}}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, B) -> [{Item, i(Item, B)} || Item <- Items]. - -i(source_name, #binding{source = SrcName}) -> SrcName#resource.name; -i(source_kind, #binding{source = SrcName}) -> SrcName#resource.kind; -i(destination_name, #binding{destination = DstName}) -> DstName#resource.name; -i(destination_kind, #binding{destination = DstName}) -> DstName#resource.kind; -i(routing_key, #binding{key = RoutingKey}) -> RoutingKey; -i(arguments, #binding{args = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(B = #binding{}) -> infos(?INFO_KEYS, B). - -info(B = #binding{}, Items) -> infos(Items, B). - -info_all(VHostPath) -> map(VHostPath, fun (B) -> info(B) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (B) -> info(B, Items) end). - -has_for_source(SrcName) -> - Match = #route{binding = #binding{source = SrcName, _ = '_'}}, - %% we need to check for durable routes here too in case a bunch of - %% routes to durable queues have been removed temporarily as a - %% result of a node failure - contains(rabbit_route, Match) orelse contains(rabbit_durable_route, Match). - -remove_for_source(SrcName) -> - [begin - ok = mnesia:delete_object(rabbit_reverse_route, - reverse_route(Route), write), - ok = delete_forward_routes(Route), - Route#route.binding - end || Route <- mnesia:match_object( - rabbit_route, - #route{binding = #binding{source = SrcName, - _ = '_'}}, - write)]. - -remove_for_destination(DstName) -> - remove_for_destination(DstName, fun delete_forward_routes/1). - -remove_transient_for_destination(DstName) -> - remove_for_destination(DstName, fun delete_transient_forward_routes/1). - -%%---------------------------------------------------------------------------- - -all_durable(Resources) -> - lists:all(fun (#exchange{durable = D}) -> D; - (#amqqueue{durable = D}) -> D - end, Resources). - -binding_action(Binding = #binding{source = SrcName, - destination = DstName, - args = Arguments}, Fun) -> - call_with_source_and_destination( - SrcName, DstName, - fun (Src, Dst) -> - SortedArgs = rabbit_misc:sort_field_table(Arguments), - Fun(Src, Dst, Binding#binding{args = SortedArgs}) - end). - -sync_binding(Binding, Durable, Fun) -> - ok = case Durable of - true -> Fun(rabbit_durable_route, - #route{binding = Binding}, write); - false -> ok - end, - {Route, ReverseRoute} = route_with_reverse(Binding), - ok = Fun(rabbit_route, Route, write), - ok = Fun(rabbit_reverse_route, ReverseRoute, write), - ok. - -call_with_source_and_destination(SrcName, DstName, Fun) -> - SrcTable = table_for_resource(SrcName), - DstTable = table_for_resource(DstName), - ErrFun = fun (Err) -> rabbit_misc:const(Err) end, - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case {mnesia:read({SrcTable, SrcName}), - mnesia:read({DstTable, DstName})} of - {[Src], [Dst]} -> Fun(Src, Dst); - {[], [_] } -> ErrFun({error, source_not_found}); - {[_], [] } -> ErrFun({error, destination_not_found}); - {[], [] } -> ErrFun({error, - source_and_destination_not_found}) - end - end). - -table_for_resource(#resource{kind = exchange}) -> rabbit_exchange; -table_for_resource(#resource{kind = queue}) -> rabbit_queue. - -contains(Table, MatchHead) -> - continue(mnesia:select(Table, [{MatchHead, [], ['$_']}], 1, read)). - -continue('$end_of_table') -> false; -continue({[_|_], _}) -> true; -continue({[], Continuation}) -> continue(mnesia:select(Continuation)). - -remove_for_destination(DstName, FwdDeleteFun) -> - Bindings = - [begin - Route = reverse_route(ReverseRoute), - ok = FwdDeleteFun(Route), - ok = mnesia:delete_object(rabbit_reverse_route, - ReverseRoute, write), - Route#route.binding - end || ReverseRoute - <- mnesia:match_object( - rabbit_reverse_route, - reverse_route(#route{ - binding = #binding{ - destination = DstName, - _ = '_'}}), - write)], - group_bindings_fold(fun maybe_auto_delete/3, new_deletions(), - lists:keysort(#binding.source, Bindings)). - -%% Requires that its input binding list is sorted in exchange-name -%% order, so that the grouping of bindings (for passing to -%% group_bindings_and_auto_delete1) works properly. -group_bindings_fold(_Fun, Acc, []) -> - Acc; -group_bindings_fold(Fun, Acc, [B = #binding{source = SrcName} | Bs]) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B]). - -group_bindings_fold( - Fun, SrcName, Acc, [B = #binding{source = SrcName} | Bs], Bindings) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B | Bindings]); -group_bindings_fold(Fun, SrcName, Acc, Removed, Bindings) -> - %% Either Removed is [], or its head has a non-matching SrcName. - group_bindings_fold(Fun, Fun(SrcName, Bindings, Acc), Removed). - -maybe_auto_delete(XName, Bindings, Deletions) -> - case mnesia:read({rabbit_exchange, XName}) of - [] -> - add_deletion(XName, {undefined, not_deleted, Bindings}, Deletions); - [X] -> - add_deletion(XName, {X, not_deleted, Bindings}, - case rabbit_exchange:maybe_auto_delete(X) of - not_deleted -> Deletions; - {deleted, Deletions1} -> combine_deletions( - Deletions, Deletions1) - end) - end. - -delete_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write), - ok = mnesia:delete_object(rabbit_durable_route, Route, write). - -delete_transient_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write). - -route_with_reverse(#route{binding = Binding}) -> - route_with_reverse(Binding); -route_with_reverse(Binding = #binding{}) -> - Route = #route{binding = Binding}, - {Route, reverse_route(Route)}. - -reverse_route(#route{binding = Binding}) -> - #reverse_route{reverse_binding = reverse_binding(Binding)}; - -reverse_route(#reverse_route{reverse_binding = Binding}) -> - #route{binding = reverse_binding(Binding)}. - -reverse_binding(#reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}; - -reverse_binding(#binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}. - -%% ---------------------------------------------------------------------------- -%% Binding / exchange deletion abstraction API -%% ---------------------------------------------------------------------------- - -anything_but( NotThis, NotThis, NotThis) -> NotThis; -anything_but( NotThis, NotThis, This) -> This; -anything_but( NotThis, This, NotThis) -> This; -anything_but(_NotThis, This, This) -> This. - -new_deletions() -> dict:new(). - -add_deletion(XName, Entry, Deletions) -> - dict:update(XName, fun (Entry1) -> merge_entry(Entry1, Entry) end, - Entry, Deletions). - -combine_deletions(Deletions1, Deletions2) -> - dict:merge(fun (_XName, Entry1, Entry2) -> merge_entry(Entry1, Entry2) end, - Deletions1, Deletions2). - -merge_entry({X1, Deleted1, Bindings1}, {X2, Deleted2, Bindings2}) -> - {anything_but(undefined, X1, X2), - anything_but(not_deleted, Deleted1, Deleted2), - [Bindings1 | Bindings2]}. - -process_deletions(Deletions, Tx) -> - dict:fold( - fun (_XName, {X, Deleted, Bindings}, ok) -> - FlatBindings = lists:flatten(Bindings), - [rabbit_event:notify_if(not Tx, binding_deleted, info(B)) || - B <- FlatBindings], - case Deleted of - not_deleted -> - rabbit_exchange:callback(X, remove_bindings, - [Tx, X, FlatBindings]); - deleted -> - rabbit_event:notify_if(not Tx, exchange_deleted, - [{name, X#exchange.name}]), - rabbit_exchange:callback(X, delete, [Tx, X, FlatBindings]) - end - end, ok, Deletions). diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl deleted file mode 100644 index a82e5eff..00000000 --- a/src/rabbit_channel.erl +++ /dev/null @@ -1,1396 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/7, do/2, do/3, flush/1, shutdown/1]). --export([send_command/2, deliver/4, flushed/2, confirm/2]). --export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). --export([emit_stats/1]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2]). - --record(ch, {state, channel, reader_pid, writer_pid, limiter_pid, - start_limiter_fun, transaction_id, tx_participants, next_tag, - uncommitted_ack_q, unacked_message_q, - user, virtual_host, most_recently_declared_queue, - consumer_mapping, blocking, queue_collector_pid, stats_timer, - confirm_enabled, publish_seqno, unconfirmed, confirmed}). - --define(MAX_PERMISSION_CACHE_SIZE, 12). - --define(STATISTICS_KEYS, - [pid, - transactional, - confirm, - consumer_count, - messages_unacknowledged, - messages_unconfirmed, - acks_uncommitted, - prefetch_count, - client_flow_blocked]). - --define(CREATION_EVENT_KEYS, - [pid, - connection, - number, - user, - vhost]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([channel_number/0]). - --type(channel_number() :: non_neg_integer()). - --spec(start_link/7 :: - (channel_number(), pid(), pid(), rabbit_types:user(), - rabbit_types:vhost(), pid(), - fun ((non_neg_integer()) -> rabbit_types:ok(pid()))) -> - rabbit_types:ok_pid_or_error()). --spec(do/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(do/3 :: (pid(), rabbit_framing:amqp_method_record(), - rabbit_types:maybe(rabbit_types:content())) -> 'ok'). --spec(flush/1 :: (pid()) -> 'ok'). --spec(shutdown/1 :: (pid()) -> 'ok'). --spec(send_command/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(deliver/4 :: - (pid(), rabbit_types:ctag(), boolean(), rabbit_amqqueue:qmsg()) - -> 'ok'). --spec(flushed/2 :: (pid(), pid()) -> 'ok'). --spec(confirm/2 ::(pid(), [non_neg_integer()]) -> 'ok'). --spec(list/0 :: () -> [pid()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(info_all/0 :: () -> [rabbit_types:infos()]). --spec(info_all/1 :: (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(emit_stats/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Channel, ReaderPid, WriterPid, User, VHost, CollectorPid, - StartLimiterFun) -> - gen_server2:start_link(?MODULE, [Channel, ReaderPid, WriterPid, User, - VHost, CollectorPid, StartLimiterFun], []). - -do(Pid, Method) -> - do(Pid, Method, none). - -do(Pid, Method, Content) -> - gen_server2:cast(Pid, {method, Method, Content}). - -flush(Pid) -> - gen_server2:call(Pid, flush). - -shutdown(Pid) -> - gen_server2:cast(Pid, terminate). - -send_command(Pid, Msg) -> - gen_server2:cast(Pid, {command, Msg}). - -deliver(Pid, ConsumerTag, AckRequired, Msg) -> - gen_server2:cast(Pid, {deliver, ConsumerTag, AckRequired, Msg}). - -flushed(Pid, QPid) -> - gen_server2:cast(Pid, {flushed, QPid}). - -confirm(Pid, MsgSeqNos) -> - gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). - -list() -> - pg_local:get_members(rabbit_channels). - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server2:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server2:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all() -> - rabbit_misc:filter_exit_map(fun (C) -> info(C) end, list()). - -info_all(Items) -> - rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). - -emit_stats(Pid) -> - gen_server2:cast(Pid, emit_stats). - -%%--------------------------------------------------------------------------- - -init([Channel, ReaderPid, WriterPid, User, VHost, CollectorPid, - StartLimiterFun]) -> - process_flag(trap_exit, true), - ok = pg_local:join(rabbit_channels, self()), - StatsTimer = rabbit_event:init_stats_timer(), - State = #ch{state = starting, - channel = Channel, - reader_pid = ReaderPid, - writer_pid = WriterPid, - limiter_pid = undefined, - start_limiter_fun = StartLimiterFun, - transaction_id = none, - tx_participants = sets:new(), - next_tag = 1, - uncommitted_ack_q = queue:new(), - unacked_message_q = queue:new(), - user = User, - virtual_host = VHost, - most_recently_declared_queue = <<>>, - consumer_mapping = dict:new(), - blocking = dict:new(), - queue_collector_pid = CollectorPid, - stats_timer = StatsTimer, - confirm_enabled = false, - publish_seqno = 1, - unconfirmed = gb_trees:empty(), - confirmed = []}, - rabbit_event:notify(channel_created, infos(?CREATION_EVENT_KEYS, State)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State) end), - {ok, State, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - emit_stats -> 7; - {confirm, _MsgSeqNos, _QPid} -> 5; - _ -> 0 - end. - -handle_call(flush, _From, State) -> - reply(ok, State); - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(_Request, _From, State) -> - noreply(State). - -handle_cast({method, Method, Content}, State) -> - try handle_method(Method, Content, State) of - {reply, Reply, NewState} -> - ok = rabbit_writer:send_command(NewState#ch.writer_pid, Reply), - noreply(NewState); - {noreply, NewState} -> - noreply(NewState); - stop -> - {stop, normal, State#ch{state = terminating}} - catch - exit:Reason = #amqp_error{} -> - MethodName = rabbit_misc:method_record_type(Method), - {stop, normal, terminating(Reason#amqp_error{method = MethodName}, - State)}; - exit:normal -> - {stop, normal, State}; - _:Reason -> - {stop, {Reason, erlang:get_stacktrace()}, State} - end; - -handle_cast({flushed, QPid}, State) -> - {noreply, queue_blocked(QPid, State), hibernate}; - -handle_cast(terminate, State) -> - {stop, normal, State}; - -handle_cast({command, Msg}, State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(State); - -handle_cast({deliver, ConsumerTag, AckRequired, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = Content}}}, - State = #ch{writer_pid = WriterPid, - next_tag = DeliveryTag}) -> - State1 = lock_message(AckRequired, - ack_record(DeliveryTag, ConsumerTag, Msg), - State), - - M = #'basic.deliver'{consumer_tag = ConsumerTag, - delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - rabbit_writer:send_command_and_notify(WriterPid, QPid, self(), M, Content), - - maybe_incr_stats([{QPid, 1}], - case AckRequired of - true -> deliver; - false -> deliver_no_ack - end, State), - noreply(State1#ch{next_tag = DeliveryTag + 1}); - -handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> - internal_emit_stats(State), - noreply([ensure_stats_timer], - State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}); - -handle_cast({confirm, MsgSeqNos, From}, State) -> - State1 = #ch{confirmed = C} = confirm(MsgSeqNos, From, State), - noreply([send_confirms], State1, case C of [] -> hibernate; _ -> 0 end). - -handle_info(timeout, State) -> - noreply(State); - -handle_info({'DOWN', _MRef, process, QPid, Reason}, - State = #ch{unconfirmed = UC}) -> - %% TODO: this does a complete scan and partial rebuild of the - %% tree, which is quite efficient. To do better we'd need to - %% maintain a secondary mapping, from QPids to MsgSeqNos. - {MXs, UC1} = remove_queue_unconfirmed( - gb_trees:next(gb_trees:iterator(UC)), QPid, - {[], UC}, State), - erase_queue_stats(QPid), - State1 = case Reason of - normal -> record_confirms(MXs, State#ch{unconfirmed = UC1}); - _ -> send_nacks(MXs, State#ch{unconfirmed = UC1}) - end, - noreply(queue_blocked(QPid, State1)). - -handle_pre_hibernate(State = #ch{stats_timer = StatsTimer}) -> - ok = clear_permission_cache(), - rabbit_event:if_enabled(StatsTimer, - fun () -> - internal_emit_stats( - State, [{idle_since, now()}]) - end), - StatsTimer1 = rabbit_event:stop_stats_timer(StatsTimer), - {hibernate, State#ch{stats_timer = StatsTimer1}}. - -terminate(_Reason, State = #ch{state = terminating}) -> - terminate(State); - -terminate(Reason, State) -> - Res = rollback_and_notify(State), - case Reason of - normal -> ok = Res; - shutdown -> ok = Res; - {shutdown, _Term} -> ok = Res; - _ -> ok - end, - terminate(State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%--------------------------------------------------------------------------- - -reply(Reply, NewState) -> reply(Reply, [], NewState). - -reply(Reply, Mask, NewState) -> reply(Reply, Mask, NewState, hibernate). - -reply(Reply, Mask, NewState, Timeout) -> - {reply, Reply, next_state(Mask, NewState), Timeout}. - -noreply(NewState) -> noreply([], NewState). - -noreply(Mask, NewState) -> noreply(Mask, NewState, hibernate). - -noreply(Mask, NewState, Timeout) -> - {noreply, next_state(Mask, NewState), Timeout}. - -next_state(Mask, State) -> - lists:foldl(fun (ensure_stats_timer, State1) -> ensure_stats_timer(State1); - (send_confirms, State1) -> send_confirms(State1) - end, State, [ensure_stats_timer, send_confirms] -- Mask). - -ensure_stats_timer(State = #ch{stats_timer = StatsTimer}) -> - ChPid = self(), - State#ch{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(ChPid) end)}. - -return_ok(State, true, _Msg) -> {noreply, State}; -return_ok(State, false, Msg) -> {reply, Msg, State}. - -ok_msg(true, _Msg) -> undefined; -ok_msg(false, Msg) -> Msg. - -terminating(Reason, State = #ch{channel = Channel, reader_pid = Reader}) -> - ok = rollback_and_notify(State), - Reader ! {channel_exit, Channel, Reason}, - State#ch{state = terminating}. - -return_queue_declare_ok(#resource{name = ActualName}, - NoWait, MessageCount, ConsumerCount, State) -> - return_ok(State#ch{most_recently_declared_queue = ActualName}, NoWait, - #'queue.declare_ok'{queue = ActualName, - message_count = MessageCount, - consumer_count = ConsumerCount}). - -check_resource_access(User, Resource, Perm) -> - V = {Resource, Perm}, - Cache = case get(permission_cache) of - undefined -> []; - Other -> Other - end, - CacheTail = - case lists:member(V, Cache) of - true -> lists:delete(V, Cache); - false -> ok = rabbit_access_control:check_resource_access( - User, Resource, Perm), - lists:sublist(Cache, ?MAX_PERMISSION_CACHE_SIZE - 1) - end, - put(permission_cache, [V | CacheTail]), - ok. - -clear_permission_cache() -> - erase(permission_cache), - ok. - -check_configure_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, configure). - -check_write_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, write). - -check_read_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, read). - -check_user_id_header(#'P_basic'{user_id = undefined}, _) -> - ok; -check_user_id_header(#'P_basic'{user_id = Username}, - #ch{user = #user{username = Username}}) -> - ok; -check_user_id_header(#'P_basic'{user_id = Claimed}, - #ch{user = #user{username = Actual}}) -> - rabbit_misc:protocol_error( - precondition_failed, "user_id property set to '~s' but " - "authenticated user was '~s'", [Claimed, Actual]). - -check_internal_exchange(#exchange{name = Name, internal = true}) -> - rabbit_misc:protocol_error(access_refused, - "cannot publish to internal ~s", - [rabbit_misc:rs(Name)]); -check_internal_exchange(_) -> - ok. - -expand_queue_name_shortcut(<<>>, #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_queue_name_shortcut(<<>>, #ch{virtual_host = VHostPath, - most_recently_declared_queue = MRDQ}) -> - rabbit_misc:r(VHostPath, queue, MRDQ); -expand_queue_name_shortcut(QueueNameBin, #ch{virtual_host = VHostPath}) -> - rabbit_misc:r(VHostPath, queue, QueueNameBin). - -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = MRDQ}) -> - MRDQ; -expand_routing_key_shortcut(_QueueNameBin, RoutingKey, _State) -> - RoutingKey. - -expand_binding(queue, DestinationNameBin, RoutingKey, State) -> - {expand_queue_name_shortcut(DestinationNameBin, State), - expand_routing_key_shortcut(DestinationNameBin, RoutingKey, State)}; -expand_binding(exchange, DestinationNameBin, RoutingKey, State) -> - {rabbit_misc:r(State#ch.virtual_host, exchange, DestinationNameBin), - RoutingKey}. - -check_not_default_exchange(#resource{kind = exchange, name = <<"">>}) -> - rabbit_misc:protocol_error( - access_refused, "operation not permitted on the default exchange", []); -check_not_default_exchange(_) -> - ok. - -%% check that an exchange/queue name does not contain the reserved -%% "amq." prefix. -%% -%% One, quite reasonable, interpretation of the spec, taken by the -%% QPid M1 Java client, is that the exclusion of "amq." prefixed names -%% only applies on actual creation, and not in the cases where the -%% entity already exists. This is how we use this function in the code -%% below. However, AMQP JIRA 123 changes that in 0-10, and possibly -%% 0-9SP1, making it illegal to attempt to declare an exchange/queue -%% with an amq.* name when passive=false. So this will need -%% revisiting. -%% -%% TODO: enforce other constraints on name. See AMQP JIRA 69. -check_name(Kind, NameBin = <<"amq.", _/binary>>) -> - rabbit_misc:protocol_error( - access_refused, - "~s name '~s' contains reserved prefix 'amq.*'",[Kind, NameBin]); -check_name(_Kind, NameBin) -> - NameBin. - -queue_blocked(QPid, State = #ch{blocking = Blocking}) -> - case dict:find(QPid, Blocking) of - error -> State; - {ok, MRef} -> true = erlang:demonitor(MRef), - Blocking1 = dict:erase(QPid, Blocking), - ok = case dict:size(Blocking1) of - 0 -> rabbit_writer:send_command( - State#ch.writer_pid, - #'channel.flow_ok'{active = false}); - _ -> ok - end, - State#ch{blocking = Blocking1} - end. - -remove_queue_unconfirmed(none, _QPid, Acc, _State) -> - Acc; -remove_queue_unconfirmed({MsgSeqNo, XQ, Next}, QPid, Acc, State) -> - remove_queue_unconfirmed(gb_trees:next(Next), QPid, - remove_qmsg(MsgSeqNo, QPid, XQ, Acc, State), - State). - -record_confirm(undefined, _, State) -> - State; -record_confirm(MsgSeqNo, XName, State) -> - record_confirms([{MsgSeqNo, XName}], State). - -record_confirms([], State) -> - State; -record_confirms(MXs, State = #ch{confirmed = C}) -> - State#ch{confirmed = [MXs | C]}. - -confirm([], _QPid, State) -> - State; -confirm(MsgSeqNos, QPid, State = #ch{unconfirmed = UC}) -> - {MXs, UC1} = - lists:foldl( - fun(MsgSeqNo, {_DMs, UC0} = Acc) -> - case gb_trees:lookup(MsgSeqNo, UC0) of - none -> Acc; - {value, XQ} -> remove_qmsg(MsgSeqNo, QPid, XQ, Acc, State) - end - end, {[], UC}, MsgSeqNos), - record_confirms(MXs, State#ch{unconfirmed = UC1}). - -remove_qmsg(MsgSeqNo, QPid, {XName, Qs}, {MXs, UC}, State) -> - Qs1 = sets:del_element(QPid, Qs), - %% these confirms will be emitted even when a queue dies, but that - %% should be fine, since the queue stats get erased immediately - maybe_incr_stats([{{QPid, XName}, 1}], confirm, State), - case sets:size(Qs1) of - 0 -> {[{MsgSeqNo, XName} | MXs], gb_trees:delete(MsgSeqNo, UC)}; - _ -> {MXs, gb_trees:update(MsgSeqNo, {XName, Qs1}, UC)} - end. - -handle_method(#'channel.open'{}, _, State = #ch{state = starting}) -> - {reply, #'channel.open_ok'{}, State#ch{state = running}}; - -handle_method(#'channel.open'{}, _, _State) -> - rabbit_misc:protocol_error( - command_invalid, "second 'channel.open' seen", []); - -handle_method(_Method, _, #ch{state = starting}) -> - rabbit_misc:protocol_error(channel_error, "expected 'channel.open'", []); - -handle_method(#'channel.close'{}, _, State = #ch{writer_pid = WriterPid}) -> - ok = rollback_and_notify(State), - ok = rabbit_writer:send_command_sync(WriterPid, #'channel.close_ok'{}), - stop; - -handle_method(#'access.request'{},_, State) -> - {reply, #'access.request_ok'{ticket = 1}, State}; - -handle_method(#'basic.publish'{exchange = ExchangeNameBin, - routing_key = RoutingKey, - mandatory = Mandatory, - immediate = Immediate}, - Content, State = #ch{virtual_host = VHostPath, - transaction_id = TxnKey, - confirm_enabled = ConfirmEnabled}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_write_permitted(ExchangeName, State), - Exchange = rabbit_exchange:lookup_or_die(ExchangeName), - check_internal_exchange(Exchange), - %% We decode the content's properties here because we're almost - %% certain to want to look at delivery-mode and priority. - DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), - check_user_id_header(DecodedContent#content.properties, State), - IsPersistent = is_message_persistent(DecodedContent), - {MsgSeqNo, State1} = - case ConfirmEnabled of - false -> {undefined, State}; - true -> SeqNo = State#ch.publish_seqno, - {SeqNo, State#ch{publish_seqno = SeqNo + 1}} - end, - Message = #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = DecodedContent, - guid = rabbit_guid:guid(), - is_persistent = IsPersistent}, - {RoutingRes, DeliveredQPids} = - rabbit_exchange:publish( - Exchange, - rabbit_basic:delivery(Mandatory, Immediate, TxnKey, Message, - MsgSeqNo)), - State2 = process_routing_result(RoutingRes, DeliveredQPids, ExchangeName, - MsgSeqNo, Message, State1), - maybe_incr_stats([{ExchangeName, 1} | - [{{QPid, ExchangeName}, 1} || - QPid <- DeliveredQPids]], publish, State2), - {noreply, case TxnKey of - none -> State2; - _ -> add_tx_participants(DeliveredQPids, State2) - end}; - -handle_method(#'basic.nack'{delivery_tag = DeliveryTag, - multiple = Multiple, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, Multiple, State); - -handle_method(#'basic.ack'{delivery_tag = DeliveryTag, - multiple = Multiple}, - _, State = #ch{transaction_id = TxnKey, - unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - QIncs = ack(TxnKey, Acked), - Participants = [QPid || {QPid, _} <- QIncs], - maybe_incr_stats(QIncs, ack, State), - {noreply, case TxnKey of - none -> ok = notify_limiter(State#ch.limiter_pid, Acked), - State#ch{unacked_message_q = Remaining}; - _ -> NewUAQ = queue:join(State#ch.uncommitted_ack_q, - Acked), - add_tx_participants( - Participants, - State#ch{unacked_message_q = Remaining, - uncommitted_ack_q = NewUAQ}) - end}; - -handle_method(#'basic.get'{queue = QueueNameBin, - no_ack = NoAck}, - _, State = #ch{writer_pid = WriterPid, - reader_pid = ReaderPid, - next_tag = DeliveryTag}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:basic_get(Q, self(), NoAck) end) of - {ok, MessageCount, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = Content}}} -> - State1 = lock_message(not(NoAck), - ack_record(DeliveryTag, none, Msg), - State), - maybe_incr_stats([{QPid, 1}], - case NoAck of - true -> get_no_ack; - false -> get - end, State), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.get_ok'{delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey, - message_count = MessageCount}, - Content), - {noreply, State1#ch{next_tag = DeliveryTag + 1}}; - empty -> - {reply, #'basic.get_empty'{}, State} - end; - -handle_method(#'basic.consume'{queue = QueueNameBin, - consumer_tag = ConsumerTag, - no_local = _, % FIXME: implement - no_ack = NoAck, - exclusive = ExclusiveConsume, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid, - limiter_pid = LimiterPid, - consumer_mapping = ConsumerMapping }) -> - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - ActualConsumerTag = - case ConsumerTag of - <<>> -> rabbit_guid:binstring_guid("amq.ctag"); - Other -> Other - end, - - %% We get the queue process to send the consume_ok on our - %% behalf. This is for symmetry with basic.cancel - see - %% the comment in that method for why. - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> - rabbit_amqqueue:basic_consume( - Q, NoAck, self(), LimiterPid, - ActualConsumerTag, ExclusiveConsume, - ok_msg(NoWait, #'basic.consume_ok'{ - consumer_tag = ActualConsumerTag})) - end) of - ok -> - {noreply, State#ch{consumer_mapping = - dict:store(ActualConsumerTag, - QueueName, - ConsumerMapping)}}; - {error, exclusive_consume_unavailable} -> - rabbit_misc:protocol_error( - access_refused, "~s in exclusive use", - [rabbit_misc:rs(QueueName)]) - end; - {ok, _} -> - %% Attempted reuse of consumer tag. - rabbit_misc:protocol_error( - not_allowed, "attempt to reuse consumer tag '~s'", [ConsumerTag]) - end; - -handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, - nowait = NoWait}, - _, State = #ch{consumer_mapping = ConsumerMapping }) -> - OkMsg = #'basic.cancel_ok'{consumer_tag = ConsumerTag}, - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - %% Spec requires we ignore this situation. - return_ok(State, NoWait, OkMsg); - {ok, QueueName} -> - NewState = State#ch{consumer_mapping = - dict:erase(ConsumerTag, - ConsumerMapping)}, - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> - %% In order to ensure that no more messages - %% are sent to the consumer after the - %% cancel_ok has been sent, we get the - %% queue process to send the cancel_ok on - %% our behalf. If we were sending the - %% cancel_ok ourselves it might overtake a - %% message sent previously by the queue. - rabbit_amqqueue:basic_cancel( - Q, self(), ConsumerTag, - ok_msg(NoWait, #'basic.cancel_ok'{ - consumer_tag = ConsumerTag})) - end) of - ok -> - {noreply, NewState}; - {error, not_found} -> - %% Spec requires we ignore this situation. - return_ok(NewState, NoWait, OkMsg) - end - end; - -handle_method(#'basic.qos'{global = true}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "global=true", []); - -handle_method(#'basic.qos'{prefetch_size = Size}, _, _State) when Size /= 0 -> - rabbit_misc:protocol_error(not_implemented, - "prefetch_size!=0 (~w)", [Size]); - -handle_method(#'basic.qos'{prefetch_count = PrefetchCount}, - _, State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case {LimiterPid, PrefetchCount} of - {undefined, 0} -> undefined; - {undefined, _} -> start_limiter(State); - {_, _} -> LimiterPid - end, - LimiterPid2 = case rabbit_limiter:limit(LimiterPid1, PrefetchCount) of - ok -> LimiterPid1; - stopped -> unlimit_queues(State) - end, - {reply, #'basic.qos_ok'{}, State#ch{limiter_pid = LimiterPid2}}; - -handle_method(#'basic.recover_async'{requeue = true}, - _, State = #ch{unacked_message_q = UAMQ, - limiter_pid = LimiterPid}) -> - OkFun = fun () -> ok end, - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - %% The Qpid python test suite incorrectly assumes - %% that messages will be requeued in their original - %% order. To keep it happy we reverse the id list - %% since we are given them in reverse order. - rabbit_misc:with_exit_handler( - OkFun, fun () -> - rabbit_amqqueue:requeue( - QPid, lists:reverse(MsgIds), self()) - end) - end, ok, UAMQ), - ok = notify_limiter(LimiterPid, UAMQ), - %% No answer required - basic.recover is the newer, synchronous - %% variant of this method - {noreply, State#ch{unacked_message_q = queue:new()}}; - -handle_method(#'basic.recover_async'{requeue = false}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "requeue=false", []); - -handle_method(#'basic.recover'{requeue = Requeue}, Content, State) -> - {noreply, State2 = #ch{writer_pid = WriterPid}} = - handle_method(#'basic.recover_async'{requeue = Requeue}, - Content, - State), - ok = rabbit_writer:send_command(WriterPid, #'basic.recover_ok'{}), - {noreply, State2}; - -handle_method(#'basic.reject'{delivery_tag = DeliveryTag, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, false, State); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - type = TypeNameBin, - passive = false, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - nowait = NoWait, - arguments = Args}, - _, State = #ch{virtual_host = VHostPath}) -> - CheckedType = rabbit_exchange:check_type(TypeNameBin), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - X = case rabbit_exchange:lookup(ExchangeName) of - {ok, FoundX} -> FoundX; - {error, not_found} -> - check_name('exchange', ExchangeNameBin), - case rabbit_misc:r_arg(VHostPath, exchange, Args, - <<"alternate-exchange">>) of - undefined -> ok; - AName -> check_read_permitted(ExchangeName, State), - check_write_permitted(AName, State), - ok - end, - rabbit_exchange:declare(ExchangeName, - CheckedType, - Durable, - AutoDelete, - Internal, - Args) - end, - ok = rabbit_exchange:assert_equivalence(X, CheckedType, Durable, - AutoDelete, Internal, Args), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), - check_not_default_exchange(ExchangeName), - _ = rabbit_exchange:lookup_or_die(ExchangeName), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.delete'{exchange = ExchangeNameBin, - if_unused = IfUnused, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - case rabbit_exchange:delete(ExchangeName, IfUnused) of - {error, not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(ExchangeName)]); - ok -> - return_ok(State, NoWait, #'exchange.delete_ok'{}) - end; - -handle_method(#'exchange.bind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.bind_ok'{}, NoWait, State); - -handle_method(#'exchange.unbind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.unbind_ok'{}, NoWait, State); - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = false, - durable = Durable, - exclusive = ExclusiveDeclare, - auto_delete = AutoDelete, - nowait = NoWait, - arguments = Args} = Declare, - _, State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid, - queue_collector_pid = CollectorPid}) -> - Owner = case ExclusiveDeclare of - true -> ReaderPid; - false -> none - end, - ActualNameBin = case QueueNameBin of - <<>> -> rabbit_guid:binstring_guid("amq.gen"); - Other -> check_name('queue', Other) - end, - QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> ok = rabbit_amqqueue:assert_equivalence( - Q, Durable, AutoDelete, Args, Owner), - rabbit_amqqueue:stat(Q) - end) of - {ok, MessageCount, ConsumerCount} -> - return_queue_declare_ok(QueueName, NoWait, MessageCount, - ConsumerCount, State); - {error, not_found} -> - case rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, - Args, Owner) of - {new, Q = #amqqueue{}} -> - %% We need to notify the reader within the channel - %% process so that we can be sure there are no - %% outstanding exclusive queues being declared as - %% the connection shuts down. - ok = case Owner of - none -> ok; - _ -> rabbit_queue_collector:register( - CollectorPid, Q) - end, - return_queue_declare_ok(QueueName, NoWait, 0, 0, State); - {existing, _Q} -> - %% must have been created between the stat and the - %% declare. Loop around again. - handle_method(Declare, none, State) - end - end; - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid}) -> - QueueName = rabbit_misc:r(VHostPath, queue, QueueNameBin), - check_configure_permitted(QueueName, State), - {{ok, MessageCount, ConsumerCount}, #amqqueue{} = Q} = - rabbit_amqqueue:with_or_die( - QueueName, fun (Q) -> {rabbit_amqqueue:stat(Q), Q} end), - ok = rabbit_amqqueue:check_exclusive_access(Q, ReaderPid), - return_queue_declare_ok(QueueName, NoWait, MessageCount, ConsumerCount, - State); - -handle_method(#'queue.delete'{queue = QueueNameBin, - if_unused = IfUnused, - if_empty = IfEmpty, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:delete(Q, IfUnused, IfEmpty) end) of - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(QueueName)]); - {error, not_empty} -> - rabbit_misc:protocol_error( - precondition_failed, "~s not empty", [rabbit_misc:rs(QueueName)]); - {ok, PurgedMessageCount} -> - return_ok(State, NoWait, - #'queue.delete_ok'{message_count = PurgedMessageCount}) - end; - -handle_method(#'queue.bind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.bind_ok'{}, NoWait, State); - -handle_method(#'queue.unbind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.unbind_ok'{}, false, State); - -handle_method(#'queue.purge'{queue = QueueNameBin, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - {ok, PurgedMessageCount} = rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:purge(Q) end), - return_ok(State, NoWait, - #'queue.purge_ok'{message_count = PurgedMessageCount}); - - -handle_method(#'tx.select'{}, _, #ch{confirm_enabled = true}) -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from confirm to tx mode", []); - -handle_method(#'tx.select'{}, _, State = #ch{transaction_id = none}) -> - {reply, #'tx.select_ok'{}, new_tx(State)}; - -handle_method(#'tx.select'{}, _, State) -> - {reply, #'tx.select_ok'{}, State}; - -handle_method(#'tx.commit'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.commit'{}, _, State) -> - {reply, #'tx.commit_ok'{}, internal_commit(State)}; - -handle_method(#'tx.rollback'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.rollback'{}, _, State) -> - {reply, #'tx.rollback_ok'{}, internal_rollback(State)}; - -handle_method(#'confirm.select'{}, _, #ch{transaction_id = TxId}) - when TxId =/= none -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from tx to confirm mode", []); - -handle_method(#'confirm.select'{nowait = NoWait}, _, State) -> - return_ok(State#ch{confirm_enabled = true}, - NoWait, #'confirm.select_ok'{}); - -handle_method(#'channel.flow'{active = true}, _, - State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case rabbit_limiter:unblock(LimiterPid) of - ok -> LimiterPid; - stopped -> unlimit_queues(State) - end, - {reply, #'channel.flow_ok'{active = true}, - State#ch{limiter_pid = LimiterPid1}}; - -handle_method(#'channel.flow'{active = false}, _, - State = #ch{limiter_pid = LimiterPid, - consumer_mapping = Consumers}) -> - LimiterPid1 = case LimiterPid of - undefined -> start_limiter(State); - Other -> Other - end, - State1 = State#ch{limiter_pid = LimiterPid1}, - ok = rabbit_limiter:block(LimiterPid1), - case consumer_queues(Consumers) of - [] -> {reply, #'channel.flow_ok'{active = false}, State1}; - QPids -> Queues = [{QPid, erlang:monitor(process, QPid)} || - QPid <- QPids], - ok = rabbit_amqqueue:flush_all(QPids, self()), - {noreply, State1#ch{blocking = dict:from_list(Queues)}} - end; - -handle_method(_MethodRecord, _Content, _State) -> - rabbit_misc:protocol_error( - command_invalid, "unimplemented method", []). - -%%---------------------------------------------------------------------------- - -binding_action(Fun, ExchangeNameBin, DestinationType, DestinationNameBin, - RoutingKey, Arguments, ReturnMethod, NoWait, - State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid}) -> - %% FIXME: connection exception (!) on failure?? - %% (see rule named "failure" in spec-XML) - %% FIXME: don't allow binding to internal exchanges - - %% including the one named "" ! - {DestinationName, ActualRoutingKey} = - expand_binding(DestinationType, DestinationNameBin, RoutingKey, State), - check_write_permitted(DestinationName, State), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - [check_not_default_exchange(N) || N <- [DestinationName, ExchangeName]], - check_read_permitted(ExchangeName, State), - case Fun(#binding{source = ExchangeName, - destination = DestinationName, - key = ActualRoutingKey, - args = Arguments}, - fun (_X, Q = #amqqueue{}) -> - try rabbit_amqqueue:check_exclusive_access(Q, ReaderPid) - catch exit:Reason -> {error, Reason} - end; - (_X, #exchange{}) -> - ok - end) of - {error, source_not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, destination_not_found} -> - rabbit_misc:not_found(DestinationName); - {error, source_and_destination_not_found} -> - rabbit_misc:protocol_error( - not_found, "no ~s and no ~s", [rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, binding_not_found} -> - rabbit_misc:protocol_error( - not_found, "no binding ~s between ~s and ~s", - [RoutingKey, rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, #amqp_error{} = Error} -> - rabbit_misc:protocol_error(Error); - ok -> return_ok(State, NoWait, ReturnMethod) - end. - -basic_return(#basic_message{exchange_name = ExchangeName, - routing_key = RoutingKey, - content = Content}, - WriterPid, Reason) -> - {_Close, ReplyCode, ReplyText} = - rabbit_framing_amqp_0_9_1:lookup_amqp_exception(Reason), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.return'{reply_code = ReplyCode, - reply_text = ReplyText, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - Content). - -reject(DeliveryTag, Requeue, Multiple, State = #ch{unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - rabbit_amqqueue:reject(QPid, MsgIds, Requeue, self()) - end, ok, Acked), - ok = notify_limiter(State#ch.limiter_pid, Acked), - {noreply, State#ch{unacked_message_q = Remaining}}. - -ack_record(DeliveryTag, ConsumerTag, - _MsgStruct = {_QName, QPid, MsgId, _Redelivered, _Msg}) -> - {DeliveryTag, ConsumerTag, {QPid, MsgId}}. - -collect_acks(Q, 0, true) -> - {Q, queue:new()}; -collect_acks(Q, DeliveryTag, Multiple) -> - collect_acks(queue:new(), queue:new(), Q, DeliveryTag, Multiple). - -collect_acks(ToAcc, PrefixAcc, Q, DeliveryTag, Multiple) -> - case queue:out(Q) of - {{value, UnackedMsg = {CurrentDeliveryTag, _ConsumerTag, _Msg}}, - QTail} -> - if CurrentDeliveryTag == DeliveryTag -> - {queue:in(UnackedMsg, ToAcc), queue:join(PrefixAcc, QTail)}; - Multiple -> - collect_acks(queue:in(UnackedMsg, ToAcc), PrefixAcc, - QTail, DeliveryTag, Multiple); - true -> - collect_acks(ToAcc, queue:in(UnackedMsg, PrefixAcc), - QTail, DeliveryTag, Multiple) - end; - {empty, _} -> - rabbit_misc:protocol_error( - precondition_failed, "unknown delivery tag ~w", [DeliveryTag]) - end. - -add_tx_participants(MoreP, State = #ch{tx_participants = Participants}) -> - State#ch{tx_participants = sets:union(Participants, - sets:from_list(MoreP))}. - -ack(TxnKey, UAQ) -> - fold_per_queue( - fun (QPid, MsgIds, L) -> - ok = rabbit_amqqueue:ack(QPid, TxnKey, MsgIds, self()), - [{QPid, length(MsgIds)} | L] - end, [], UAQ). - -make_tx_id() -> rabbit_guid:guid(). - -new_tx(State) -> - State#ch{transaction_id = make_tx_id(), - tx_participants = sets:new(), - uncommitted_ack_q = queue:new()}. - -internal_commit(State = #ch{transaction_id = TxnKey, - tx_participants = Participants}) -> - case rabbit_amqqueue:commit_all(sets:to_list(Participants), - TxnKey, self()) of - ok -> ok = notify_limiter(State#ch.limiter_pid, - State#ch.uncommitted_ack_q), - new_tx(State); - {error, Errors} -> rabbit_misc:protocol_error( - internal_error, "commit failed: ~w", [Errors]) - end. - -internal_rollback(State = #ch{transaction_id = TxnKey, - tx_participants = Participants, - uncommitted_ack_q = UAQ, - unacked_message_q = UAMQ}) -> - ?LOGDEBUG("rollback ~p~n - ~p acks uncommitted, ~p messages unacked~n", - [self(), - queue:len(UAQ), - queue:len(UAMQ)]), - ok = rabbit_amqqueue:rollback_all(sets:to_list(Participants), - TxnKey, self()), - NewUAMQ = queue:join(UAQ, UAMQ), - new_tx(State#ch{unacked_message_q = NewUAMQ}). - -rollback_and_notify(State = #ch{transaction_id = none}) -> - notify_queues(State); -rollback_and_notify(State) -> - notify_queues(internal_rollback(State)). - -fold_per_queue(F, Acc0, UAQ) -> - D = rabbit_misc:queue_fold( - fun ({_DTag, _CTag, {QPid, MsgId}}, D) -> - %% dict:append would avoid the lists:reverse in - %% handle_message({recover, true}, ...). However, it - %% is significantly slower when going beyond a few - %% thousand elements. - rabbit_misc:dict_cons(QPid, MsgId, D) - end, dict:new(), UAQ), - dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, - Acc0, D). - -start_limiter(State = #ch{unacked_message_q = UAMQ, start_limiter_fun = SLF}) -> - {ok, LPid} = SLF(queue:len(UAMQ)), - ok = limit_queues(LPid, State), - LPid. - -notify_queues(#ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:notify_down_all(consumer_queues(Consumers), self()). - -unlimit_queues(State) -> - ok = limit_queues(undefined, State), - undefined. - -limit_queues(LPid, #ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:limit_all(consumer_queues(Consumers), self(), LPid). - -consumer_queues(Consumers) -> - [QPid || QueueName <- - sets:to_list( - dict:fold(fun (_ConsumerTag, QueueName, S) -> - sets:add_element(QueueName, S) - end, sets:new(), Consumers)), - case rabbit_amqqueue:lookup(QueueName) of - {ok, Q} -> QPid = Q#amqqueue.pid, true; - %% queue has been deleted in the meantime - {error, not_found} -> QPid = none, false - end]. - -%% tell the limiter about the number of acks that have been received -%% for messages delivered to subscribed consumers, but not acks for -%% messages sent in a response to a basic.get (identified by their -%% 'none' consumer tag) -notify_limiter(undefined, _Acked) -> - ok; -notify_limiter(LimiterPid, Acked) -> - case rabbit_misc:queue_fold(fun ({_, none, _}, Acc) -> Acc; - ({_, _, _}, Acc) -> Acc + 1 - end, 0, Acked) of - 0 -> ok; - Count -> rabbit_limiter:ack(LimiterPid, Count) - end. - -is_message_persistent(Content) -> - case rabbit_basic:is_message_persistent(Content) of - {invalid, Other} -> - rabbit_log:warning("Unknown delivery mode ~p - " - "treating as 1, non-persistent~n", - [Other]), - false; - IsPersistent when is_boolean(IsPersistent) -> - IsPersistent - end. - -process_routing_result(unroutable, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State#ch.writer_pid, no_route), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(not_delivered, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State#ch.writer_pid, no_consumers), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, [], XName, MsgSeqNo, _, State) -> - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, _, _, undefined, _, State) -> - State; -process_routing_result(routed, QPids, XName, MsgSeqNo, _, State) -> - #ch{unconfirmed = UC} = State, - [maybe_monitor(QPid) || QPid <- QPids], - UC1 = gb_trees:insert(MsgSeqNo, {XName, sets:from_list(QPids)}, UC), - State#ch{unconfirmed = UC1}. - -lock_message(true, MsgStruct, State = #ch{unacked_message_q = UAMQ}) -> - State#ch{unacked_message_q = queue:in(MsgStruct, UAMQ)}; -lock_message(false, _MsgStruct, State) -> - State. - -send_nacks([], State) -> - State; -send_nacks(MXs, State) -> - MsgSeqNos = [ MsgSeqNo || {MsgSeqNo, _} <- MXs ], - coalesce_and_send(MsgSeqNos, - fun(MsgSeqNo, Multiple) -> - #'basic.nack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State). - -send_confirms(State = #ch{confirmed = C}) -> - C1 = lists:append(C), - MsgSeqNos = [ begin maybe_incr_stats([{ExchangeName, 1}], confirm, State), - MsgSeqNo - end || {MsgSeqNo, ExchangeName} <- C1 ], - send_confirms(MsgSeqNos, State #ch{confirmed = []}). -send_confirms([], State) -> - State; -send_confirms([MsgSeqNo], State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, - #'basic.ack'{delivery_tag = MsgSeqNo}), - State; -send_confirms(Cs, State) -> - coalesce_and_send(Cs, fun(MsgSeqNo, Multiple) -> - #'basic.ack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State). - -coalesce_and_send(MsgSeqNos, MkMsgFun, - State = #ch{writer_pid = WriterPid, unconfirmed = UC}) -> - SMsgSeqNos = lists:usort(MsgSeqNos), - CutOff = case gb_trees:is_empty(UC) of - true -> lists:last(SMsgSeqNos) + 1; - false -> {SeqNo, _XQ} = gb_trees:smallest(UC), SeqNo - end, - {Ms, Ss} = lists:splitwith(fun(X) -> X < CutOff end, SMsgSeqNos), - case Ms of - [] -> ok; - _ -> ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(lists:last(Ms), true)) - end, - [ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(SeqNo, false)) || SeqNo <- Ss], - State. - -terminate(_State) -> - pg_local:leave(rabbit_channels, self()), - rabbit_event:notify(channel_closed, [{pid, self()}]). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, _) -> self(); -i(connection, #ch{reader_pid = ReaderPid}) -> ReaderPid; -i(number, #ch{channel = Channel}) -> Channel; -i(user, #ch{user = User}) -> User#user.username; -i(vhost, #ch{virtual_host = VHost}) -> VHost; -i(transactional, #ch{transaction_id = TxnKey}) -> TxnKey =/= none; -i(confirm, #ch{confirm_enabled = CE}) -> CE; -i(consumer_count, #ch{consumer_mapping = ConsumerMapping}) -> - dict:size(ConsumerMapping); -i(messages_unconfirmed, #ch{unconfirmed = UC}) -> - gb_trees:size(UC); -i(messages_unacknowledged, #ch{unacked_message_q = UAMQ, - uncommitted_ack_q = UAQ}) -> - queue:len(UAMQ) + queue:len(UAQ); -i(acks_uncommitted, #ch{uncommitted_ack_q = UAQ}) -> - queue:len(UAQ); -i(prefetch_count, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:get_limit(LimiterPid); -i(client_flow_blocked, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:is_blocked(LimiterPid); -i(Item, _) -> - throw({bad_argument, Item}). - -maybe_incr_stats(QXIncs, Measure, #ch{stats_timer = StatsTimer}) -> - case rabbit_event:stats_level(StatsTimer) of - fine -> [incr_stats(QX, Inc, Measure) || {QX, Inc} <- QXIncs]; - _ -> ok - end. - -incr_stats({QPid, _} = QX, Inc, Measure) -> - maybe_monitor(QPid), - update_measures(queue_exchange_stats, QX, Inc, Measure); -incr_stats(QPid, Inc, Measure) when is_pid(QPid) -> - maybe_monitor(QPid), - update_measures(queue_stats, QPid, Inc, Measure); -incr_stats(X, Inc, Measure) -> - update_measures(exchange_stats, X, Inc, Measure). - -maybe_monitor(QPid) -> - case get({monitoring, QPid}) of - undefined -> erlang:monitor(process, QPid), - put({monitoring, QPid}, true); - _ -> ok - end. - -update_measures(Type, QX, Inc, Measure) -> - Measures = case get({Type, QX}) of - undefined -> []; - D -> D - end, - Cur = case orddict:find(Measure, Measures) of - error -> 0; - {ok, C} -> C - end, - put({Type, QX}, - orddict:store(Measure, Cur + Inc, Measures)). - -internal_emit_stats(State) -> - internal_emit_stats(State, []). - -internal_emit_stats(State = #ch{stats_timer = StatsTimer}, Extra) -> - CoarseStats = infos(?STATISTICS_KEYS, State), - case rabbit_event:stats_level(StatsTimer) of - coarse -> - rabbit_event:notify(channel_stats, Extra ++ CoarseStats); - fine -> - FineStats = - [{channel_queue_stats, - [{QPid, Stats} || {{queue_stats, QPid}, Stats} <- get()]}, - {channel_exchange_stats, - [{X, Stats} || {{exchange_stats, X}, Stats} <- get()]}, - {channel_queue_exchange_stats, - [{QX, Stats} || - {{queue_exchange_stats, QX}, Stats} <- get()]}], - rabbit_event:notify(channel_stats, - Extra ++ CoarseStats ++ FineStats) - end. - -erase_queue_stats(QPid) -> - erase({monitoring, QPid}), - erase({queue_stats, QPid}), - [erase({queue_exchange_stats, QX}) || - {{queue_exchange_stats, QX = {QPid0, _}}, _} <- get(), QPid =:= QPid0]. diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl deleted file mode 100644 index d21cfdb7..00000000 --- a/src/rabbit_channel_sup.erl +++ /dev/null @@ -1,88 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup). - --behaviour(supervisor2). - --export([start_link/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([start_link_args/0]). - --type(start_link_args() :: - {'tcp', rabbit_types:protocol(), rabbit_net:socket(), - rabbit_channel:channel_number(), non_neg_integer(), pid(), - rabbit_types:user(), rabbit_types:vhost(), pid()} | - {'direct', rabbit_channel:channel_number(), pid(), rabbit_types:user(), - rabbit_types:vhost(), pid()}). - --spec(start_link/1 :: (start_link_args()) -> {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link({tcp, Protocol, Sock, Channel, FrameMax, ReaderPid, User, VHost, - Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, WriterPid} = - supervisor2:start_child( - SupPid, - {writer, {rabbit_writer, start_link, - [Sock, Channel, FrameMax, Protocol, ReaderPid]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_writer]}), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ReaderPid, WriterPid, User, VHost, - Collector, start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, AState} = rabbit_command_assembler:init(Protocol), - {ok, SupPid, {ChannelPid, AState}}; -start_link({direct, Channel, ClientChannelPid, User, VHost, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ClientChannelPid, ClientChannelPid, - User, VHost, Collector, start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, SupPid, {ChannelPid, none}}. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. - -start_limiter_fun(SupPid) -> - fun (UnackedCount) -> - Me = self(), - {ok, _Pid} = - supervisor2:start_child( - SupPid, - {limiter, {rabbit_limiter, start_link, [Me, UnackedCount]}, - transient, ?MAX_WAIT, worker, [rabbit_limiter]}) - end. diff --git a/src/rabbit_channel_sup_sup.erl b/src/rabbit_channel_sup_sup.erl deleted file mode 100644 index e2561c80..00000000 --- a/src/rabbit_channel_sup_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup_sup). - --behaviour(supervisor2). - --export([start_link/0, start_channel/2]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(start_channel/2 :: (pid(), rabbit_channel_sup:start_link_args()) -> - {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor2:start_link(?MODULE, []). - -start_channel(Pid, Args) -> - supervisor2:start_child(Pid, [Args]). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{channel_sup, {rabbit_channel_sup, start_link, []}, - temporary, infinity, supervisor, [rabbit_channel_sup]}]}}. diff --git a/src/rabbit_client_sup.erl b/src/rabbit_client_sup.erl deleted file mode 100644 index dbdc6cd4..00000000 --- a/src/rabbit_client_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_client_sup). - --behaviour(supervisor2). - --export([start_link/1, start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (mfa()) -> - rabbit_types:ok_pid_or_error()). --spec(start_link/2 :: ({'local', atom()}, mfa()) -> - rabbit_types:ok_pid_or_error()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Callback) -> - supervisor2:start_link(?MODULE, Callback). - -start_link(SupName, Callback) -> - supervisor2:start_link(SupName, ?MODULE, Callback). - -init({M,F,A}) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{client, {M,F,A}, temporary, infinity, supervisor, [M]}]}}. diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl deleted file mode 100644 index 07036ce8..00000000 --- a/src/rabbit_command_assembler.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_command_assembler). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([analyze_frame/3, init/1, process/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame_type() :: ?FRAME_METHOD | ?FRAME_HEADER | ?FRAME_BODY | - ?FRAME_OOB_METHOD | ?FRAME_OOB_HEADER | ?FRAME_OOB_BODY | - ?FRAME_TRACE | ?FRAME_HEARTBEAT). --type(protocol() :: rabbit_framing:protocol()). --type(method() :: rabbit_framing:amqp_method_record()). --type(class_id() :: rabbit_framing:amqp_class_id()). --type(weight() :: non_neg_integer()). --type(body_size() :: non_neg_integer()). --type(content() :: rabbit_types:undecoded_content()). - --type(frame() :: - {'method', rabbit_framing:amqp_method_name(), binary()} | - {'content_header', class_id(), weight(), body_size(), binary()} | - {'content_body', binary()}). - --type(state() :: - {'method', protocol()} | - {'content_header', method(), class_id(), protocol()} | - {'content_body', method(), body_size(), class_id(), protocol()}). - --spec(analyze_frame/3 :: (frame_type(), binary(), protocol()) -> - frame() | 'heartbeat' | 'error'). - --spec(init/1 :: (protocol()) -> {ok, state()}). --spec(process/2 :: (frame(), state()) -> - {ok, state()} | - {ok, method(), state()} | - {ok, method(), content(), state()} | - {error, rabbit_types:amqp_error()}). - --endif. - -%%-------------------------------------------------------------------- - -analyze_frame(?FRAME_METHOD, - <>, - Protocol) -> - MethodName = Protocol:lookup_method_name({ClassId, MethodId}), - {method, MethodName, MethodFields}; -analyze_frame(?FRAME_HEADER, - <>, - _Protocol) -> - {content_header, ClassId, Weight, BodySize, Properties}; -analyze_frame(?FRAME_BODY, Body, _Protocol) -> - {content_body, Body}; -analyze_frame(?FRAME_HEARTBEAT, <<>>, _Protocol) -> - heartbeat; -analyze_frame(_Type, _Body, _Protocol) -> - error. - -init(Protocol) -> {ok, {method, Protocol}}. - -process({method, MethodName, FieldsBin}, {method, Protocol}) -> - try - Method = Protocol:decode_method_fields(MethodName, FieldsBin), - case Protocol:method_has_content(MethodName) of - true -> {ClassId, _MethodId} = Protocol:method_id(MethodName), - {ok, {content_header, Method, ClassId, Protocol}}; - false -> {ok, Method, {method, Protocol}} - end - catch exit:#amqp_error{} = Reason -> {error, Reason} - end; -process(_Frame, {method, _Protocol}) -> - unexpected_frame("expected method frame, " - "got non method frame instead", [], none); -process({content_header, ClassId, 0, 0, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, Method, Content, {method, Protocol}}; -process({content_header, ClassId, 0, BodySize, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, {content_body, Method, BodySize, Content, Protocol}}; -process({content_header, HeaderClassId, 0, _BodySize, _PropertiesBin}, - {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got one for class ~w instead", - [ClassId, HeaderClassId], Method); -process(_Frame, {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got non content header frame instead", [ClassId], Method); -process({content_body, FragmentBin}, - {content_body, Method, RemainingSize, - Content = #content{payload_fragments_rev = Fragments}, Protocol}) -> - NewContent = Content#content{ - payload_fragments_rev = [FragmentBin | Fragments]}, - case RemainingSize - size(FragmentBin) of - 0 -> {ok, Method, NewContent, {method, Protocol}}; - Sz -> {ok, {content_body, Method, Sz, NewContent, Protocol}} - end; -process(_Frame, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("expected content body, " - "got non content body frame instead", [], Method). - -%%-------------------------------------------------------------------- - -empty_content(ClassId, PropertiesBin, Protocol) -> - #content{class_id = ClassId, - properties = none, - properties_bin = PropertiesBin, - protocol = Protocol, - payload_fragments_rev = []}. - -unexpected_frame(Format, Params, Method) when is_atom(Method) -> - {error, rabbit_misc:amqp_error(unexpected_frame, Format, Params, Method)}; -unexpected_frame(Format, Params, Method) -> - unexpected_frame(Format, Params, rabbit_misc:method_record_type(Method)). diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl deleted file mode 100644 index b2aba2ee..00000000 --- a/src/rabbit_connection_sup.erl +++ /dev/null @@ -1,65 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_connection_sup). - --behaviour(supervisor2). - --export([start_link/0, reader/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid(), pid()}). --spec(reader/1 :: (pid()) -> pid()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link() -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, Collector} = - supervisor2:start_child( - SupPid, - {collector, {rabbit_queue_collector, start_link, []}, - intrinsic, ?MAX_WAIT, worker, [rabbit_queue_collector]}), - {ok, ChannelSupSupPid} = - supervisor2:start_child( - SupPid, - {channel_sup_sup, {rabbit_channel_sup_sup, start_link, []}, - intrinsic, infinity, supervisor, [rabbit_channel_sup_sup]}), - {ok, ReaderPid} = - supervisor2:start_child( - SupPid, - {reader, {rabbit_reader, start_link, - [ChannelSupSupPid, Collector, - rabbit_heartbeat:start_heartbeat_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_reader]}), - {ok, SupPid, ReaderPid}. - -reader(Pid) -> - hd(supervisor2:find_child(Pid, reader)). - -%%-------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl deleted file mode 100644 index 80483097..00000000 --- a/src/rabbit_control.erl +++ /dev/null @@ -1,404 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_control). --include("rabbit.hrl"). - --export([start/0, stop/0, action/5, diagnostics/1]). - --define(RPC_TIMEOUT, infinity). - --define(QUIET_OPT, "-q"). --define(NODE_OPT, "-n"). --define(VHOST_OPT, "-p"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(action/5 :: - (atom(), node(), [string()], [{string(), any()}], - fun ((string(), [any()]) -> 'ok')) - -> 'ok'). --spec(diagnostics/1 :: (node()) -> [{string(), [any()]}]). --spec(usage/0 :: () -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), - FullCommand = init:get_plain_arguments(), - case FullCommand of - [] -> usage(); - _ -> ok - end, - {[Command0 | Args], Opts} = - rabbit_misc:get_options( - [{flag, ?QUIET_OPT}, {option, ?NODE_OPT, NodeStr}, - {option, ?VHOST_OPT, "/"}], - FullCommand), - Opts1 = lists:map(fun({K, V}) -> - case K of - ?NODE_OPT -> {?NODE_OPT, rabbit_misc:makenode(V)}; - _ -> {K, V} - end - end, Opts), - Command = list_to_atom(Command0), - Quiet = proplists:get_bool(?QUIET_OPT, Opts1), - Node = proplists:get_value(?NODE_OPT, Opts1), - Inform = case Quiet of - true -> fun (_Format, _Args1) -> ok end; - false -> fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end - end, - %% The reason we don't use a try/catch here is that rpc:call turns - %% thrown errors into normal return values - case catch action(Command, Node, Args, Opts, Inform) of - ok -> - case Quiet of - true -> ok; - false -> io:format("...done.~n") - end, - quit(0); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error("invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]), - usage(); - {error, Reason} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, {'EXIT', Reason}} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, Reason} -> - print_error("unable to connect to node ~w: ~w", [Node, Reason]), - print_badrpc_diagnostics(Node), - quit(2); - Other -> - print_error("~p", [Other]), - quit(2) - end. - -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - -print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - -print_badrpc_diagnostics(Node) -> - [fmt_stderr(Fmt, Args) || {Fmt, Args} <- diagnostics(Node)]. - -diagnostics(Node) -> - {_NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - [ - {"diagnostics:", []}, - case net_adm:names(NodeHost) of - {error, EpmdReason} -> - {"- unable to connect to epmd on ~s: ~w", - [NodeHost, EpmdReason]}; - {ok, NamePorts} -> - {"- nodes and their ports on ~s: ~p", - [NodeHost, [{list_to_atom(Name), Port} || - {Name, Port} <- NamePorts]]} - end, - {"- current node: ~w", [node()]}, - case init:get_argument(home) of - {ok, [[Home]]} -> {"- current node home dir: ~s", [Home]}; - Other -> {"- no current node home dir: ~p", [Other]} - end, - {"- current node cookie hash: ~s", [rabbit_misc:cookie_hash()]} - ]. - -stop() -> - ok. - -usage() -> - io:format("~s", [rabbit_ctl_usage:usage()]), - quit(1). - -action(stop, Node, [], _Opts, Inform) -> - Inform("Stopping and halting node ~p", [Node]), - call(Node, {rabbit, stop_and_halt, []}); - -action(stop_app, Node, [], _Opts, Inform) -> - Inform("Stopping node ~p", [Node]), - call(Node, {rabbit, stop, []}); - -action(start_app, Node, [], _Opts, Inform) -> - Inform("Starting node ~p", [Node]), - call(Node, {rabbit, start, []}); - -action(reset, Node, [], _Opts, Inform) -> - Inform("Resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, reset, []}); - -action(force_reset, Node, [], _Opts, Inform) -> - Inform("Forcefully resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, force_reset, []}); - -action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); - -action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); - -action(status, Node, [], _Opts, Inform) -> - Inform("Status of node ~p", [Node]), - case call(Node, {rabbit, status, []}) of - {badrpc, _} = Res -> Res; - Res -> io:format("~p~n", [Res]), - ok - end; - -action(rotate_logs, Node, [], _Opts, Inform) -> - Inform("Reopening logs for node ~p", [Node]), - call(Node, {rabbit, rotate_logs, [""]}); -action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), - call(Node, {rabbit, rotate_logs, Args}); - -action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> - Inform("Closing connection ~s", [PidStr]), - rpc_call(Node, rabbit_networking, close_connection, - [rabbit_misc:string_to_pid(PidStr), Explanation]); - -action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> - Inform("Creating user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, add_user, Args}); - -action(delete_user, Node, Args = [_Username], _Opts, Inform) -> - Inform("Deleting user ~p", Args), - call(Node, {rabbit_auth_backend_internal, delete_user, Args}); - -action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> - Inform("Changing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, change_password, Args}); - -action(clear_password, Node, Args = [Username], _Opts, Inform) -> - Inform("Clearing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_password, Args}); - -action(set_admin, Node, [Username], _Opts, Inform) -> - Inform("Setting administrative status for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, set_admin, [Username]}); - -action(clear_admin, Node, [Username], _Opts, Inform) -> - Inform("Clearing administrative status for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_admin, [Username]}); - -action(list_users, Node, [], _Opts, Inform) -> - Inform("Listing users", []), - display_list(call(Node, {rabbit_auth_backend_internal, list_users, []})); - -action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Creating vhost ~p", Args), - call(Node, {rabbit_vhost, add, Args}); - -action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Deleting vhost ~p", Args), - call(Node, {rabbit_vhost, delete, Args}); - -action(list_vhosts, Node, [], _Opts, Inform) -> - Inform("Listing vhosts", []), - display_list(call(Node, {rabbit_vhost, list, []})); - -action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> - Inform("Listing permissions for user ~p", Args), - display_list(call(Node, {rabbit_auth_backend_internal, - list_user_permissions, Args})); - -action(list_queues, Node, Args, Opts, Inform) -> - Inform("Listing queues", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, messages]), - display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_exchanges, Node, Args, Opts, Inform) -> - Inform("Listing exchanges", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, type]), - display_info_list(rpc_call(Node, rabbit_exchange, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_bindings, Node, Args, Opts, Inform) -> - Inform("Listing bindings", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]), - display_info_list(rpc_call(Node, rabbit_binding, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_connections, Node, Args, _Opts, Inform) -> - Inform("Listing connections", []), - ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), - display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, - [ArgAtoms]), - ArgAtoms); - -action(list_channels, Node, Args, _Opts, Inform) -> - Inform("Listing channels", []), - ArgAtoms = default_if_empty(Args, [pid, user, transactional, consumer_count, - messages_unacknowledged]), - display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); - -action(list_consumers, Node, _Args, Opts, Inform) -> - Inform("Listing consumers", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - InfoKeys = [queue_name, channel_pid, consumer_tag, ack_required], - case rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg]) of - L when is_list(L) -> display_info_list( - [lists:zip(InfoKeys, tuple_to_list(X)) || - X <- L], - InfoKeys); - Other -> Other - end; - -action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, [Username], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, clear_permissions, - [Username, VHost]}); - -action(list_permissions, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Listing permissions in vhost ~p", [VHost]), - display_list(call(Node, {rabbit_auth_backend_internal, - list_vhost_permissions, [VHost]})). - -default_if_empty(List, Default) when is_list(List) -> - if List == [] -> - Default; - true -> - [list_to_atom(X) || X <- List] - end. - -display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach( - fun (Result) -> display_row( - [format_info_item(proplists:get_value(X, Result)) || - X <- InfoItemKeys]) - end, Results), - ok; -display_info_list(Other, _) -> - Other. - -display_row(Row) -> - io:fwrite(string:join(Row, "\t")), - io:nl(). - --define(IS_U8(X), (X >= 0 andalso X =< 255)). --define(IS_U16(X), (X >= 0 andalso X =< 65535)). - -format_info_item(#resource{name = Name}) -> - escape(Name); -format_info_item({N1, N2, N3, N4} = Value) when - ?IS_U8(N1), ?IS_U8(N2), ?IS_U8(N3), ?IS_U8(N4) -> - rabbit_misc:ntoa(Value); -format_info_item({K1, K2, K3, K4, K5, K6, K7, K8} = Value) when - ?IS_U16(K1), ?IS_U16(K2), ?IS_U16(K3), ?IS_U16(K4), - ?IS_U16(K5), ?IS_U16(K6), ?IS_U16(K7), ?IS_U16(K8) -> - rabbit_misc:ntoa(Value); -format_info_item(Value) when is_pid(Value) -> - rabbit_misc:pid_to_string(Value); -format_info_item(Value) when is_binary(Value) -> - escape(Value); -format_info_item(Value) when is_atom(Value) -> - escape(atom_to_list(Value)); -format_info_item([{TableEntryKey, TableEntryType, _TableEntryValue} | _] = - Value) when is_binary(TableEntryKey) andalso - is_atom(TableEntryType) -> - io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); -format_info_item(Value) -> - io_lib:format("~w", [Value]). - -display_list(L) when is_list(L) -> - lists:foreach(fun (I) when is_binary(I) -> - io:format("~s~n", [escape(I)]); - (I) when is_tuple(I) -> - display_row([escape(V) - || V <- tuple_to_list(I)]) - end, - lists:sort(L)), - ok; -display_list(Other) -> Other. - -call(Node, {Mod, Fun, Args}) -> - rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). - -rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). - -%% escape does C-style backslash escaping of non-printable ASCII -%% characters. We don't escape characters above 127, since they may -%% form part of UTF-8 strings. - -escape(Atom) when is_atom(Atom) -> - escape(atom_to_list(Atom)); -escape(Bin) when is_binary(Bin) -> - escape(binary_to_list(Bin)); -escape(L) when is_list(L) -> - escape_char(lists:reverse(L), []). - -escape_char([$\\ | T], Acc) -> - escape_char(T, [$\\, $\\ | Acc]); -escape_char([X | T], Acc) when X >= 32, X /= 127 -> - escape_char(T, [X | Acc]); -escape_char([X | T], Acc) -> - escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), - $0 + (X band 7) | Acc]); -escape_char([], Acc) -> - Acc. - -prettify_amqp_table(Table) -> - [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. - -prettify_typed_amqp_value(Type, Value) -> - case Type of - longstr -> escape(Value); - table -> prettify_amqp_table(Value); - array -> [prettify_typed_amqp_value(T, V) || {T, V} <- Value]; - _ -> Value - end. - -% the slower shutdown on windows required to flush stdout -quit(Status) -> - case os:type() of - {unix, _} -> - halt(Status); - {win32, _} -> - init:stop(Status) - end. diff --git a/src/rabbit_direct.erl b/src/rabbit_direct.erl deleted file mode 100644 index 3b8c9fba..00000000 --- a/src/rabbit_direct.erl +++ /dev/null @@ -1,75 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_direct). - --export([boot/0, connect/3, start_channel/5]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(boot/0 :: () -> 'ok'). --spec(connect/3 :: (binary(), binary(), binary()) -> - {'ok', {rabbit_types:user(), - rabbit_framing:amqp_table()}}). --spec(start_channel/5 :: (rabbit_channel:channel_number(), pid(), - rabbit_types:user(), rabbit_types:vhost(), pid()) -> - {'ok', pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - {ok, _} = - supervisor2:start_child( - rabbit_sup, - {rabbit_direct_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_direct_client_sup}, - {rabbit_channel_sup, start_link, []}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%%---------------------------------------------------------------------------- - -connect(Username, Password, VHost) -> - case lists:keymember(rabbit, 1, application:which_applications()) of - true -> - try rabbit_access_control:user_pass_login(Username, Password) of - #user{} = User -> - try rabbit_access_control:check_vhost_access(User, VHost) of - ok -> {ok, {User, rabbit_reader:server_properties()}} - catch - exit:#amqp_error{name = access_refused} -> - {error, access_refused} - end - catch - exit:#amqp_error{name = access_refused} -> {error, auth_failure} - end; - false -> - {error, broker_not_found_on_node} - end. - -start_channel(Number, ClientChannelPid, User, VHost, Collector) -> - {ok, _, {ChannelPid, _}} = - supervisor2:start_child( - rabbit_direct_client_sup, - [{direct, Number, ClientChannelPid, User, VHost, Collector}]), - {ok, ChannelPid}. diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl deleted file mode 100644 index 0120f0d6..00000000 --- a/src/rabbit_error_logger.erl +++ /dev/null @@ -1,74 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(LOG_EXCH_NAME, <<"amq.rabbitmq.log">>). - --behaviour(gen_event). - --export([boot/0]). - --export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, - handle_info/2]). - -boot() -> - {ok, DefaultVHost} = application:get_env(default_vhost), - ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). - -init([DefaultVHost]) -> - #exchange{} = rabbit_exchange:declare( - rabbit_misc:r(DefaultVHost, exchange, ?LOG_EXCH_NAME), - topic, true, false, false, []), - {ok, #resource{virtual_host = DefaultVHost, - kind = exchange, - name = ?LOG_EXCH_NAME}}. - -terminate(_Arg, _State) -> - terminated_ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State) -> - ok = publish(Kind, Format, Data, State), - {ok, State}; -handle_event(_Event, State) -> - {ok, State}. - -handle_info(_Info, State) -> - {ok, State}. - -publish(error, Format, Data, State) -> - publish1(<<"error">>, Format, Data, State); -publish(warning_msg, Format, Data, State) -> - publish1(<<"warning">>, Format, Data, State); -publish(info_msg, Format, Data, State) -> - publish1(<<"info">>, Format, Data, State); -publish(_Other, _Format, _Data, _State) -> - ok. - -publish1(RoutingKey, Format, Data, LogExch) -> - {ok, _RoutingRes, _DeliveredQPids} = - rabbit_basic:publish(LogExch, RoutingKey, false, false, none, - #'P_basic'{content_type = <<"text/plain">>}, - list_to_binary(io_lib:format(Format, Data))), - ok. diff --git a/src/rabbit_error_logger_file_h.erl b/src/rabbit_error_logger_file_h.erl deleted file mode 100644 index 7e9ebc4f..00000000 --- a/src/rabbit_error_logger_file_h.erl +++ /dev/null @@ -1,68 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_error_logger_file_h is a wrapper around the error_logger_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers in log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without performing -%% log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(File). - -handle_event(Event, State) -> - error_logger_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - error_logger_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - error_logger_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - error_logger_file_h:terminate(Reason, State). - -code_change(OldVsn, State, Extra) -> - error_logger_file_h:code_change(OldVsn, State, Extra). diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl deleted file mode 100644 index 40ade4b7..00000000 --- a/src/rabbit_event.erl +++ /dev/null @@ -1,144 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_event). - --include("rabbit.hrl"). - --export([start_link/0]). --export([init_stats_timer/0, ensure_stats_timer/2, stop_stats_timer/1]). --export([reset_stats_timer/1]). --export([stats_level/1, if_enabled/2]). --export([notify/2, notify_if/3]). - -%%---------------------------------------------------------------------------- - --record(state, {level, timer}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([event_type/0, event_props/0, event_timestamp/0, event/0]). - --type(event_type() :: atom()). --type(event_props() :: term()). --type(event_timestamp() :: - {non_neg_integer(), non_neg_integer(), non_neg_integer()}). - --type(event() :: #event { - type :: event_type(), - props :: event_props(), - timestamp :: event_timestamp() - }). - --type(level() :: 'none' | 'coarse' | 'fine'). - --opaque(state() :: #state { - level :: level(), - timer :: atom() - }). - --type(timer_fun() :: fun (() -> 'ok')). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(init_stats_timer/0 :: () -> state()). --spec(ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). --spec(stop_stats_timer/1 :: (state()) -> state()). --spec(reset_stats_timer/1 :: (state()) -> state()). --spec(stats_level/1 :: (state()) -> level()). --spec(if_enabled/2 :: (state(), timer_fun()) -> 'ok'). --spec(notify/2 :: (event_type(), event_props()) -> 'ok'). --spec(notify_if/3 :: (boolean(), event_type(), event_props()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_event:start_link({local, ?MODULE}). - -%% The idea is, for each stat-emitting object: -%% -%% On startup: -%% Timer = init_stats_timer() -%% notify(created event) -%% if_enabled(internal_emit_stats) - so we immediately send something -%% -%% On wakeup: -%% ensure_stats_timer(Timer, emit_stats) -%% (Note we can't emit stats immediately, the timer may have fired 1ms ago.) -%% -%% emit_stats: -%% if_enabled(internal_emit_stats) -%% reset_stats_timer(Timer) - just bookkeeping -%% -%% Pre-hibernation: -%% if_enabled(internal_emit_stats) -%% stop_stats_timer(Timer) -%% -%% internal_emit_stats: -%% notify(stats) - -init_stats_timer() -> - {ok, StatsLevel} = application:get_env(rabbit, collect_statistics), - #state{level = StatsLevel, timer = undefined}. - -ensure_stats_timer(State = #state{level = none}, _Fun) -> - State; -ensure_stats_timer(State = #state{timer = undefined}, Fun) -> - {ok, TRef} = timer:apply_after(?STATS_INTERVAL, - erlang, apply, [Fun, []]), - State#state{timer = TRef}; -ensure_stats_timer(State, _Fun) -> - State. - -stop_stats_timer(State = #state{level = none}) -> - State; -stop_stats_timer(State = #state{timer = undefined}) -> - State; -stop_stats_timer(State = #state{timer = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#state{timer = undefined}. - -reset_stats_timer(State) -> - State#state{timer = undefined}. - -stats_level(#state{level = Level}) -> - Level. - -if_enabled(#state{level = none}, _Fun) -> - ok; -if_enabled(_State, Fun) -> - Fun(), - ok. - -notify_if(true, Type, Props) -> notify(Type, Props); -notify_if(false, _Type, _Props) -> ok. - -notify(Type, Props) -> - try - %% TODO: switch to os:timestamp() when we drop support for - %% Erlang/OTP < R13B01 - gen_event:notify(rabbit_event, #event{type = Type, - props = Props, - timestamp = now()}) - catch error:badarg -> - %% badarg means rabbit_event is no longer registered. We never - %% unregister it so the great likelihood is that we're shutting - %% down the broker but some events were backed up. Ignore it. - ok - end. diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl deleted file mode 100644 index 92259195..00000000 --- a/src/rabbit_exchange.erl +++ /dev/null @@ -1,310 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([recover/0, declare/6, lookup/1, lookup_or_die/1, list/1, info_keys/0, - info/1, info/2, info_all/1, info_all/2, publish/2, delete/2]). --export([callback/3]). -%% this must be run inside a mnesia tx --export([maybe_auto_delete/1]). --export([assert_equivalence/6, assert_args_equivalence/2, check_type/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, type/0]). - --type(name() :: rabbit_types:r('exchange')). --type(type() :: atom()). - --spec(recover/0 :: () -> 'ok'). --spec(declare/6 :: - (name(), type(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> rabbit_types:exchange()). --spec(check_type/1 :: - (binary()) -> atom() | rabbit_types:connection_exit()). --spec(assert_equivalence/6 :: - (rabbit_types:exchange(), atom(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:exchange()) | - rabbit_types:error('not_found')). --spec(lookup_or_die/1 :: - (name()) -> rabbit_types:exchange() | - rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:exchange()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:exchange()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:exchange(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(publish/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> {rabbit_router:routing_result(), [pid()]}). --spec(delete/2 :: - (name(), boolean())-> 'ok' | - rabbit_types:error('not_found') | - rabbit_types:error('in_use')). --spec(maybe_auto_delete/1:: - (rabbit_types:exchange()) - -> 'not_deleted' | {'deleted', rabbit_binding:deletions()}). --spec(callback/3:: (rabbit_types:exchange(), atom(), [any()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [name, type, durable, auto_delete, internal, arguments]). - -recover() -> - Xs = rabbit_misc:table_fold( - fun (X, Acc) -> - ok = mnesia:write(rabbit_exchange, X, write), - [X | Acc] - end, [], rabbit_durable_exchange), - Bs = rabbit_binding:recover(), - recover_with_bindings( - lists:keysort(#binding.source, Bs), - lists:keysort(#exchange.name, Xs), []). - -recover_with_bindings([B = #binding{source = XName} | Rest], - Xs = [#exchange{name = XName} | _], - Bindings) -> - recover_with_bindings(Rest, Xs, [B | Bindings]); -recover_with_bindings(Bs, [X = #exchange{type = Type} | Xs], Bindings) -> - (type_to_module(Type)):recover(X, Bindings), - recover_with_bindings(Bs, Xs, []); -recover_with_bindings([], [], []) -> - ok. - -declare(XName, Type, Durable, AutoDelete, Internal, Args) -> - X = #exchange{name = XName, - type = Type, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - arguments = Args}, - %% We want to upset things if it isn't ok - ok = (type_to_module(Type)):validate(X), - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_exchange, XName}) of - [] -> - ok = mnesia:write(rabbit_exchange, X, write), - ok = case Durable of - true -> mnesia:write(rabbit_durable_exchange, - X, write); - false -> ok - end, - {new, X}; - [ExistingX] -> - {existing, ExistingX} - end - end, - fun ({new, Exchange}, Tx) -> - callback(Exchange, create, [Tx, Exchange]), - rabbit_event:notify_if(not Tx, exchange_created, info(Exchange)), - Exchange; - ({existing, Exchange}, _Tx) -> - Exchange; - (Err, _Tx) -> - Err - end). - -%% Used with atoms from records; e.g., the type is expected to exist. -type_to_module(T) -> - {ok, Module} = rabbit_registry:lookup_module(exchange, T), - Module. - -%% Used with binaries sent over the wire; the type may not exist. -check_type(TypeBin) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown exchange type '~s'", [TypeBin]); - T -> - case rabbit_registry:lookup_module(exchange, T) of - {error, not_found} -> rabbit_misc:protocol_error( - command_invalid, - "invalid exchange type '~s'", [T]); - {ok, _Module} -> T - end - end. - -assert_equivalence(X = #exchange{ durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - type = Type}, - Type, Durable, AutoDelete, Internal, RequiredArgs) -> - (type_to_module(Type)):assert_args_equivalence(X, RequiredArgs); -assert_equivalence(#exchange{ name = Name }, - _Type, _Durable, _Internal, _AutoDelete, _Args) -> - rabbit_misc:protocol_error( - precondition_failed, - "cannot redeclare ~s with different type, durable, " - "internal or autodelete value", - [rabbit_misc:rs(Name)]). - -assert_args_equivalence(#exchange{ name = Name, arguments = Args }, - RequiredArgs) -> - %% The spec says "Arguments are compared for semantic - %% equivalence". The only arg we care about is - %% "alternate-exchange". - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, Name, - [<<"alternate-exchange">>]). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_exchange, Name}). - -lookup_or_die(Name) -> - case lookup(Name) of - {ok, X} -> X; - {error, not_found} -> rabbit_misc:not_found(Name) - end. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_exchange, - #exchange{name = rabbit_misc:r(VHostPath, exchange), _ = '_'}). - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, X) -> [{Item, i(Item, X)} || Item <- Items]. - -i(name, #exchange{name = Name}) -> Name; -i(type, #exchange{type = Type}) -> Type; -i(durable, #exchange{durable = Durable}) -> Durable; -i(auto_delete, #exchange{auto_delete = AutoDelete}) -> AutoDelete; -i(internal, #exchange{internal = Internal}) -> Internal; -i(arguments, #exchange{arguments = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(X = #exchange{}) -> infos(?INFO_KEYS, X). - -info(X = #exchange{}, Items) -> infos(Items, X). - -info_all(VHostPath) -> map(VHostPath, fun (X) -> info(X) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (X) -> info(X, Items) end). - -publish(X = #exchange{name = XName}, Delivery) -> - rabbit_router:deliver( - route(Delivery, {queue:from_list([X]), XName, []}), - Delivery). - -route(Delivery, {WorkList, SeenXs, QNames}) -> - case queue:out(WorkList) of - {empty, _WorkList} -> - lists:usort(QNames); - {{value, X = #exchange{type = Type}}, WorkList1} -> - DstNames = process_alternate( - X, ((type_to_module(Type)):route(X, Delivery))), - route(Delivery, - lists:foldl(fun process_route/2, {WorkList1, SeenXs, QNames}, - DstNames)) - end. - -process_alternate(#exchange{name = XName, arguments = Args}, []) -> - case rabbit_misc:r_arg(XName, exchange, Args, <<"alternate-exchange">>) of - undefined -> []; - AName -> [AName] - end; -process_alternate(_X, Results) -> - Results. - -process_route(#resource{kind = exchange} = XName, - {_WorkList, XName, _QNames} = Acc) -> - Acc; -process_route(#resource{kind = exchange} = XName, - {WorkList, #resource{kind = exchange} = SeenX, QNames}) -> - {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:from_list([SeenX, XName]), QNames}; -process_route(#resource{kind = exchange} = XName, - {WorkList, SeenXs, QNames} = Acc) -> - case gb_sets:is_element(XName, SeenXs) of - true -> Acc; - false -> {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:add_element(XName, SeenXs), QNames} - end; -process_route(#resource{kind = queue} = QName, - {WorkList, SeenXs, QNames}) -> - {WorkList, SeenXs, [QName | QNames]}. - -call_with_exchange(XName, Fun, PrePostCommitFun) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> case mnesia:read({rabbit_exchange, XName}) of - [] -> {error, not_found}; - [X] -> Fun(X) - end - end, PrePostCommitFun). - -delete(XName, IfUnused) -> - call_with_exchange( - XName, - case IfUnused of - true -> fun conditional_delete/1; - false -> fun unconditional_delete/1 - end, - fun ({deleted, X, Bs, Deletions}, Tx) -> - ok = rabbit_binding:process_deletions( - rabbit_binding:add_deletion( - XName, {X, deleted, Bs}, Deletions), Tx); - (Error = {error, _InUseOrNotFound}, _Tx) -> - Error - end). - -maybe_auto_delete(#exchange{auto_delete = false}) -> - not_deleted; -maybe_auto_delete(#exchange{auto_delete = true} = X) -> - case conditional_delete(X) of - {error, in_use} -> not_deleted; - {deleted, X, [], Deletions} -> {deleted, Deletions} - end. - -callback(#exchange{type = XType}, Fun, Args) -> - apply(type_to_module(XType), Fun, Args). - -conditional_delete(X = #exchange{name = XName}) -> - case rabbit_binding:has_for_source(XName) of - false -> unconditional_delete(X); - true -> {error, in_use} - end. - -unconditional_delete(X = #exchange{name = XName}) -> - ok = mnesia:delete({rabbit_durable_exchange, XName}), - ok = mnesia:delete({rabbit_exchange, XName}), - Bindings = rabbit_binding:remove_for_source(XName), - {deleted, X, Bindings, rabbit_binding:remove_for_destination(XName)}. diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl deleted file mode 100644 index 547583e9..00000000 --- a/src/rabbit_exchange_type.erl +++ /dev/null @@ -1,50 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - {description, 0}, - {route, 2}, - - %% called BEFORE declaration, to check args etc; may exit with #amqp_error{} - {validate, 1}, - - %% called after declaration when previously absent - {create, 2}, - - %% called when recovering - {recover, 2}, - - %% called after exchange deletion. - {delete, 3}, - - %% called after a binding has been added - {add_binding, 3}, - - %% called after bindings have been deleted. - {remove_bindings, 3}, - - %% called when comparing exchanges for equivalence - should return ok or - %% exit with #amqp_error{} - {assert_args_equivalence, 2} - - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_exchange_type_direct.erl b/src/rabbit_exchange_type_direct.erl deleted file mode 100644 index c51b0913..00000000 --- a/src/rabbit_exchange_type_direct.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_direct). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, - add_binding/3, remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type direct"}, - {mfa, {rabbit_registry, register, - [exchange, <<"direct">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"direct">>}, - {description, <<"AMQP direct exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{routing_key = RoutingKey}}) -> - rabbit_router:match_routing_key(Name, RoutingKey). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_fanout.erl b/src/rabbit_exchange_type_fanout.erl deleted file mode 100644 index 382fb627..00000000 --- a/src/rabbit_exchange_type_fanout.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_fanout). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type fanout"}, - {mfa, {rabbit_registry, register, - [exchange, <<"fanout">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"fanout">>}, - {description, <<"AMQP fanout exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, _Delivery) -> - rabbit_router:match_routing_key(Name, '_'). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_headers.erl b/src/rabbit_exchange_type_headers.erl deleted file mode 100644 index d3529b06..00000000 --- a/src/rabbit_exchange_type_headers.erl +++ /dev/null @@ -1,122 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_headers). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type headers"}, - {mfa, {rabbit_registry, register, - [exchange, <<"headers">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --ifdef(use_specs). --spec(headers_match/2 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table()) -> boolean()). --endif. - -description() -> - [{name, <<"headers">>}, - {description, <<"AMQP headers exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{content = Content}}) -> - Headers = case (Content#content.properties)#'P_basic'.headers of - undefined -> []; - H -> rabbit_misc:sort_field_table(H) - end, - rabbit_router:match_bindings( - Name, fun (#binding{args = Spec}) -> headers_match(Spec, Headers) end). - -default_headers_match_kind() -> all. - -parse_x_match(<<"all">>) -> all; -parse_x_match(<<"any">>) -> any; -parse_x_match(Other) -> - rabbit_log:warning("Invalid x-match field value ~p; expected all or any", - [Other]), - default_headers_match_kind(). - -%% Horrendous matching algorithm. Depends for its merge-like -%% (linear-time) behaviour on the lists:keysort -%% (rabbit_misc:sort_field_table) that route/1 and -%% rabbit_binding:{add,remove}/2 do. -%% -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% In other words: REQUIRES BOTH PATTERN AND DATA TO BE SORTED ASCENDING BY KEY. -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% -headers_match(Pattern, Data) -> - MatchKind = case lists:keysearch(<<"x-match">>, 1, Pattern) of - {value, {_, longstr, MK}} -> parse_x_match(MK); - {value, {_, Type, MK}} -> - rabbit_log:warning("Invalid x-match field type ~p " - "(value ~p); expected longstr", - [Type, MK]), - default_headers_match_kind(); - _ -> default_headers_match_kind() - end, - headers_match(Pattern, Data, true, false, MatchKind). - -headers_match([], _Data, AllMatch, _AnyMatch, all) -> - AllMatch; -headers_match([], _Data, _AllMatch, AnyMatch, any) -> - AnyMatch; -headers_match([{<<"x-", _/binary>>, _PT, _PV} | PRest], Data, - AllMatch, AnyMatch, MatchKind) -> - headers_match(PRest, Data, AllMatch, AnyMatch, MatchKind); -headers_match(_Pattern, [], _AllMatch, AnyMatch, MatchKind) -> - headers_match([], [], false, AnyMatch, MatchKind); -headers_match(Pattern = [{PK, _PT, _PV} | _], [{DK, _DT, _DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK > DK -> - headers_match(Pattern, DRest, AllMatch, AnyMatch, MatchKind); -headers_match([{PK, _PT, _PV} | PRest], Data = [{DK, _DT, _DV} | _], - _AllMatch, AnyMatch, MatchKind) when PK < DK -> - headers_match(PRest, Data, false, AnyMatch, MatchKind); -headers_match([{PK, PT, PV} | PRest], [{DK, DT, DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK == DK -> - {AllMatch1, AnyMatch1} = - if - %% It's not properly specified, but a "no value" in a - %% pattern field is supposed to mean simple presence of - %% the corresponding data field. I've interpreted that to - %% mean a type of "void" for the pattern field. - PT == void -> {AllMatch, true}; - %% Similarly, it's not specified, but I assume that a - %% mismatched type causes a mismatched value. - PT =/= DT -> {false, AnyMatch}; - PV == DV -> {AllMatch, true}; - true -> {false, AnyMatch} - end, - headers_match(PRest, DRest, AllMatch1, AnyMatch1, MatchKind). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_topic.erl b/src/rabbit_exchange_type_topic.erl deleted file mode 100644 index c1741b30..00000000 --- a/src/rabbit_exchange_type_topic.erl +++ /dev/null @@ -1,254 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_topic). - --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type topic"}, - {mfa, {rabbit_registry, register, - [exchange, <<"topic">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%%---------------------------------------------------------------------------- - -description() -> - [{name, <<"topic">>}, - {description, <<"AMQP topic exchange, as per the AMQP specification">>}]. - -%% NB: This may return duplicate results in some situations (that's ok) -route(#exchange{name = X}, - #delivery{message = #basic_message{routing_key = Key}}) -> - Words = split_topic_key(Key), - mnesia:async_dirty(fun trie_match/2, [X, Words]). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. - -recover(_Exchange, Bs) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - lists:foreach(fun (B) -> internal_add_binding(B) end, Bs) - end). - -delete(true, #exchange{name = X}, _Bs) -> - trie_remove_all_edges(X), - trie_remove_all_bindings(X), - ok; -delete(false, _Exchange, _Bs) -> - ok. - -add_binding(true, _Exchange, Binding) -> - internal_add_binding(Binding); -add_binding(false, _Exchange, _Binding) -> - ok. - -remove_bindings(true, _X, Bs) -> - lists:foreach(fun remove_binding/1, Bs), - ok; -remove_bindings(false, _X, _Bs) -> - ok. - -remove_binding(#binding{source = X, key = K, destination = D}) -> - Path = [{FinalNode, _} | _] = follow_down_get_path(X, split_topic_key(K)), - trie_remove_binding(X, FinalNode, D), - remove_path_if_empty(X, Path), - ok. - -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). - -%%---------------------------------------------------------------------------- - -internal_add_binding(#binding{source = X, key = K, destination = D}) -> - FinalNode = follow_down_create(X, split_topic_key(K)), - trie_add_binding(X, FinalNode, D), - ok. - -trie_match(X, Words) -> - trie_match(X, root, Words, []). - -trie_match(X, Node, [], ResAcc) -> - trie_match_part(X, Node, "#", fun trie_match_skip_any/4, [], - trie_bindings(X, Node) ++ ResAcc); -trie_match(X, Node, [W | RestW] = Words, ResAcc) -> - lists:foldl(fun ({WArg, MatchFun, RestWArg}, Acc) -> - trie_match_part(X, Node, WArg, MatchFun, RestWArg, Acc) - end, ResAcc, [{W, fun trie_match/4, RestW}, - {"*", fun trie_match/4, RestW}, - {"#", fun trie_match_skip_any/4, Words}]). - -trie_match_part(X, Node, Search, MatchFun, RestW, ResAcc) -> - case trie_child(X, Node, Search) of - {ok, NextNode} -> MatchFun(X, NextNode, RestW, ResAcc); - error -> ResAcc - end. - -trie_match_skip_any(X, Node, [], ResAcc) -> - trie_match(X, Node, [], ResAcc); -trie_match_skip_any(X, Node, [_ | RestW] = Words, ResAcc) -> - trie_match_skip_any(X, Node, RestW, - trie_match(X, Node, Words, ResAcc)). - -follow_down_create(X, Words) -> - case follow_down_last_node(X, Words) of - {ok, FinalNode} -> FinalNode; - {error, Node, RestW} -> lists:foldl( - fun (W, CurNode) -> - NewNode = new_node_id(), - trie_add_edge(X, CurNode, NewNode, W), - NewNode - end, Node, RestW) - end. - -follow_down_last_node(X, Words) -> - follow_down(X, fun (_, Node, _) -> Node end, root, Words). - -follow_down_get_path(X, Words) -> - {ok, Path} = - follow_down(X, fun (W, Node, PathAcc) -> [{Node, W} | PathAcc] end, - [{root, none}], Words), - Path. - -follow_down(X, AccFun, Acc0, Words) -> - follow_down(X, root, AccFun, Acc0, Words). - -follow_down(_X, _CurNode, _AccFun, Acc, []) -> - {ok, Acc}; -follow_down(X, CurNode, AccFun, Acc, Words = [W | RestW]) -> - case trie_child(X, CurNode, W) of - {ok, NextNode} -> follow_down(X, NextNode, AccFun, - AccFun(W, NextNode, Acc), RestW); - error -> {error, Acc, Words} - end. - -remove_path_if_empty(_, [{root, none}]) -> - ok; -remove_path_if_empty(X, [{Node, W} | [{Parent, _} | _] = RestPath]) -> - case trie_has_any_bindings(X, Node) orelse trie_has_any_children(X, Node) of - true -> ok; - false -> trie_remove_edge(X, Parent, Node, W), - remove_path_if_empty(X, RestPath) - end. - -trie_child(X, Node, Word) -> - case mnesia:read(rabbit_topic_trie_edge, - #trie_edge{exchange_name = X, - node_id = Node, - word = Word}) of - [#topic_trie_edge{node_id = NextNode}] -> {ok, NextNode}; - [] -> error - end. - -trie_bindings(X, Node) -> - MatchHead = #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = '$1'}}, - mnesia:select(rabbit_topic_trie_binding, [{MatchHead, [], ['$1']}]). - -trie_add_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:write/3). - -trie_remove_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:delete_object/3). - -trie_edge_op(X, FromNode, ToNode, W, Op) -> - ok = Op(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = FromNode, - word = W}, - node_id = ToNode}, - write). - -trie_add_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:write/3). - -trie_remove_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:delete_object/3). - -trie_binding_op(X, Node, D, Op) -> - ok = Op(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = D}}, - write). - -trie_has_any_children(X, Node) -> - has_any(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -trie_has_any_bindings(X, Node) -> - has_any(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -trie_remove_all_edges(X) -> - remove_all(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - _ = '_'}, - _ = '_'}). - -trie_remove_all_bindings(X) -> - remove_all(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, _ = '_'}, - _ = '_'}). - -has_any(Table, MatchHead) -> - Select = mnesia:select(Table, [{MatchHead, [], ['$_']}], 1, read), - select_while_no_result(Select) /= '$end_of_table'. - -select_while_no_result({[], Cont}) -> - select_while_no_result(mnesia:select(Cont)); -select_while_no_result(Other) -> - Other. - -remove_all(Table, Pattern) -> - lists:foreach(fun (R) -> mnesia:delete_object(Table, R, write) end, - mnesia:match_object(Table, Pattern, write)). - -new_node_id() -> - rabbit_guid:guid(). - -split_topic_key(Key) -> - split_topic_key(Key, [], []). - -split_topic_key(<<>>, [], []) -> - []; -split_topic_key(<<>>, RevWordAcc, RevResAcc) -> - lists:reverse([lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<<$., Rest/binary>>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [], [lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [C | RevWordAcc], RevResAcc). - diff --git a/src/rabbit_framing.erl b/src/rabbit_framing.erl deleted file mode 100644 index da1a6a49..00000000 --- a/src/rabbit_framing.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% TODO auto-generate - --module(rabbit_framing). - --ifdef(use_specs). - --export_type([protocol/0, - amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(protocol() :: 'rabbit_framing_amqp_0_8' | 'rabbit_framing_amqp_0_9_1'). - --define(protocol_type(T), type(T :: rabbit_framing_amqp_0_8:T | - rabbit_framing_amqp_0_9_1:T)). - --?protocol_type(amqp_field_type()). --?protocol_type(amqp_property_type()). --?protocol_type(amqp_table()). --?protocol_type(amqp_array()). --?protocol_type(amqp_value()). --?protocol_type(amqp_method_name()). --?protocol_type(amqp_method()). --?protocol_type(amqp_method_record()). --?protocol_type(amqp_method_field_name()). --?protocol_type(amqp_property_record()). --?protocol_type(amqp_exception()). --?protocol_type(amqp_exception_code()). --?protocol_type(amqp_class_id()). - --endif. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl deleted file mode 100644 index 234bc55b..00000000 --- a/src/rabbit_guid.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_guid). - --behaviour(gen_server). - --export([start_link/0]). --export([guid/0, string_guid/1, binstring_guid/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_serial"). - --record(state, {serial}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([guid/0]). - --type(guid() :: binary()). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(guid/0 :: () -> guid()). --spec(string_guid/1 :: (any()) -> string()). --spec(binstring_guid/1 :: (any()) -> binary()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(rabbit_mnesia:dir(), ?SERIAL_FILENAME), - Serial = case rabbit_misc:read_term_file(Filename) of - {ok, [Num]} -> Num; - {error, enoent} -> 0; - {error, Reason} -> - throw({error, {cannot_read_serial_file, Filename, Reason}}) - end, - case rabbit_misc:write_term_file(Filename, [Serial + 1]) of - ok -> ok; - {error, Reason1} -> - throw({error, {cannot_write_serial_file, Filename, Reason1}}) - end, - Serial. - -%% generate a GUID. -%% -%% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. -guid() -> - %% We don't use erlang:now() here because a) it may return - %% duplicates when the system clock has been rewound prior to a - %% restart, or ids were generated at a high rate (which causes - %% now() to move ahead of the system time), and b) it is really - %% slow since it takes a global lock and makes a system call. - %% - %% A persisted serial number, in combination with self/0 (which - %% includes the node name) uniquely identifies a process in space - %% and time. We combine that with a process-local counter to give - %% us a GUID. - G = case get(guid) of - undefined -> {{gen_server:call(?SERVER, serial, infinity), self()}, - 0}; - {S, I} -> {S, I+1} - end, - put(guid, G), - erlang:md5(term_to_binary(G)). - -%% generate a readable string representation of a GUID. -string_guid(Prefix) -> - Prefix ++ "-" ++ base64:encode_to_string(guid()). - -binstring_guid(Prefix) -> - list_to_binary(string_guid(Prefix)). - -%%---------------------------------------------------------------------------- - -init([Serial]) -> - {ok, #state{serial = Serial}}. - -handle_call(serial, _From, State = #state{serial = Serial}) -> - {reply, Serial, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_heartbeat.erl b/src/rabbit_heartbeat.erl deleted file mode 100644 index 177ae868..00000000 --- a/src/rabbit_heartbeat.erl +++ /dev/null @@ -1,149 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_heartbeat). - --export([start_heartbeat_sender/3, start_heartbeat_receiver/3, - start_heartbeat_fun/1, pause_monitor/1, resume_monitor/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([heartbeaters/0]). --export_type([start_heartbeat_fun/0]). - --type(heartbeaters() :: {rabbit_types:maybe(pid()), rabbit_types:maybe(pid())}). - --type(heartbeat_callback() :: fun (() -> any())). - --type(start_heartbeat_fun() :: - fun((rabbit_net:socket(), non_neg_integer(), heartbeat_callback(), - non_neg_integer(), heartbeat_callback()) -> - no_return())). - --spec(start_heartbeat_sender/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). --spec(start_heartbeat_receiver/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). - --spec(start_heartbeat_fun/1 :: - (pid()) -> start_heartbeat_fun()). - - --spec(pause_monitor/1 :: (heartbeaters()) -> 'ok'). --spec(resume_monitor/1 :: (heartbeaters()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_heartbeat_sender(Sock, TimeoutSec, SendFun) -> - %% the 'div 2' is there so that we don't end up waiting for nearly - %% 2 * TimeoutSec before sending a heartbeat in the boundary case - %% where the last message was sent just after a heartbeat. - heartbeater( - {Sock, TimeoutSec * 1000 div 2, send_oct, 0, - fun () -> - SendFun(), - continue - end}). - -start_heartbeat_receiver(Sock, TimeoutSec, ReceiveFun) -> - %% we check for incoming data every interval, and time out after - %% two checks with no change. As a result we will time out between - %% 2 and 3 intervals after the last data has been received. - heartbeater({Sock, TimeoutSec * 1000, recv_oct, 1, fun () -> - ReceiveFun(), - stop - end}). - -start_heartbeat_fun(SupPid) -> - fun (Sock, SendTimeoutSec, SendFun, ReceiveTimeoutSec, ReceiveFun) -> - {ok, Sender} = - start_heartbeater(SendTimeoutSec, SupPid, Sock, - SendFun, heartbeat_sender, - start_heartbeat_sender), - {ok, Receiver} = - start_heartbeater(ReceiveTimeoutSec, SupPid, Sock, - ReceiveFun, heartbeat_receiver, - start_heartbeat_receiver), - {Sender, Receiver} - end. - -pause_monitor({_Sender, none}) -> - ok; -pause_monitor({_Sender, Receiver}) -> - Receiver ! pause, - ok. - -resume_monitor({_Sender, none}) -> - ok; -resume_monitor({_Sender, Receiver}) -> - Receiver ! resume, - ok. - -%%---------------------------------------------------------------------------- -start_heartbeater(0, _SupPid, _Sock, _TimeoutFun, _Name, _Callback) -> - {ok, none}; -start_heartbeater(TimeoutSec, SupPid, Sock, TimeoutFun, Name, Callback) -> - supervisor2:start_child( - SupPid, {Name, - {rabbit_heartbeat, Callback, - [Sock, TimeoutSec, TimeoutFun]}, - transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}). - -heartbeater(Params) -> - {ok, proc_lib:spawn_link(fun () -> heartbeater(Params, {0, 0}) end)}. - -heartbeater({Sock, TimeoutMillisec, StatName, Threshold, Handler} = Params, - {StatVal, SameCount}) -> - Recurse = fun (V) -> heartbeater(Params, V) end, - receive - pause -> - receive - resume -> - Recurse({0, 0}); - Other -> - exit({unexpected_message, Other}) - end; - Other -> - exit({unexpected_message, Other}) - after TimeoutMillisec -> - case rabbit_net:getstat(Sock, [StatName]) of - {ok, [{StatName, NewStatVal}]} -> - if NewStatVal =/= StatVal -> - Recurse({NewStatVal, 0}); - SameCount < Threshold -> - Recurse({NewStatVal, SameCount + 1}); - true -> - case Handler() of - stop -> ok; - continue -> Recurse({NewStatVal, 0}) - end - end; - {error, einval} -> - %% the socket is dead, most likely because the - %% connection is being shut down -> terminate - ok; - {error, Reason} -> - exit({cannot_get_socket_stats, Reason}) - end - end. diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl deleted file mode 100644 index 86ea7282..00000000 --- a/src/rabbit_limiter.erl +++ /dev/null @@ -1,234 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_limiter). - --behaviour(gen_server2). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, prioritise_call/3]). --export([start_link/2]). --export([limit/2, can_send/3, ack/2, register/2, unregister/2]). --export([get_limit/1, block/1, unblock/1, is_blocked/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(maybe_pid() :: pid() | 'undefined'). - --spec(start_link/2 :: (pid(), non_neg_integer()) -> - rabbit_types:ok_pid_or_error()). --spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok' | 'stopped'). --spec(can_send/3 :: (maybe_pid(), pid(), boolean()) -> boolean()). --spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(get_limit/1 :: (maybe_pid()) -> non_neg_integer()). --spec(block/1 :: (maybe_pid()) -> 'ok'). --spec(unblock/1 :: (maybe_pid()) -> 'ok' | 'stopped'). --spec(is_blocked/1 :: (maybe_pid()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = dict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - -%%---------------------------------------------------------------------------- -%% API -%%---------------------------------------------------------------------------- - -start_link(ChPid, UnackedMsgCount) -> - gen_server2:start_link(?MODULE, [ChPid, UnackedMsgCount], []). - -limit(undefined, 0) -> - ok; -limit(LimiterPid, PrefetchCount) -> - gen_server2:call(LimiterPid, {limit, PrefetchCount}). - -%% Ask the limiter whether the queue can deliver a message without -%% breaching a limit -can_send(undefined, _QPid, _AckRequired) -> - true; -can_send(LimiterPid, QPid, AckRequired) -> - rabbit_misc:with_exit_handler( - fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, - infinity) end). - -%% Let the limiter know that the channel has received some acks from a -%% consumer -ack(undefined, _Count) -> ok; -ack(LimiterPid, Count) -> gen_server2:cast(LimiterPid, {ack, Count}). - -register(undefined, _QPid) -> ok; -register(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {register, QPid}). - -unregister(undefined, _QPid) -> ok; -unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}). - -get_limit(undefined) -> - 0; -get_limit(Pid) -> - rabbit_misc:with_exit_handler( - fun () -> 0 end, - fun () -> gen_server2:call(Pid, get_limit, infinity) end). - -block(undefined) -> - ok; -block(LimiterPid) -> - gen_server2:call(LimiterPid, block, infinity). - -unblock(undefined) -> - ok; -unblock(LimiterPid) -> - gen_server2:call(LimiterPid, unblock, infinity). - -is_blocked(undefined) -> - false; -is_blocked(LimiterPid) -> - gen_server2:call(LimiterPid, is_blocked, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([ChPid, UnackedMsgCount]) -> - {ok, #lim{ch_pid = ChPid, volume = UnackedMsgCount}}. - -prioritise_call(get_limit, _From, _State) -> 9; -prioritise_call(_Msg, _From, _State) -> 0. - -handle_call({can_send, _QPid, _AckRequired}, _From, - State = #lim{blocked = true}) -> - {reply, false, State}; -handle_call({can_send, QPid, AckRequired}, _From, - State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} - end; - -handle_call(get_limit, _From, State = #lim{prefetch_count = PrefetchCount}) -> - {reply, PrefetchCount, State}; - -handle_call({limit, PrefetchCount}, _From, State) -> - case maybe_notify(State, State#lim{prefetch_count = PrefetchCount}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(block, _From, State) -> - {reply, ok, State#lim{blocked = true}}; - -handle_call(unblock, _From, State) -> - case maybe_notify(State, State#lim{blocked = false}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(is_blocked, _From, State) -> - {reply, blocked(State), State}. - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {cont, State1} = maybe_notify(State, State#lim{volume = NewVolume}), - {noreply, State1}; - -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; - -handle_cast({unregister, QPid}, State) -> - {noreply, forget_queue(QPid, State)}. - -handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> - {noreply, forget_queue(QPid, State)}. - -terminate(_, _) -> - ok. - -code_change(_, State, _) -> - State. - -%%---------------------------------------------------------------------------- -%% Internal plumbing -%%---------------------------------------------------------------------------- - -maybe_notify(OldState, NewState) -> - case (limit_reached(OldState) orelse blocked(OldState)) andalso - not (limit_reached(NewState) orelse blocked(NewState)) of - true -> NewState1 = notify_queues(NewState), - {case NewState1#lim.prefetch_count of - 0 -> stop; - _ -> cont - end, NewState1}; - false -> {cont, NewState} - end. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -blocked(#lim{blocked = Blocked}) -> Blocked. - -remember_queue(QPid, State = #lim{queues = Queues}) -> - case dict:is_key(QPid, Queues) of - false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = dict:store(QPid, {MRef, false}, Queues)}; - true -> State - end. - -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> - case dict:find(QPid, Queues) of - {ok, {MRef, _}} -> - true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), - State#lim{queues = dict:erase(QPid, Queues)}; - error -> State - end. - -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, - State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. - -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - dict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], dict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, - State#lim{queues = NewQueues}. diff --git a/src/rabbit_log.erl b/src/rabbit_log.erl deleted file mode 100644 index 8207d6bc..00000000 --- a/src/rabbit_log.erl +++ /dev/null @@ -1,132 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_log). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([debug/1, debug/2, message/4, info/1, info/2, - warning/1, warning/2, error/1, error/2]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(debug/1 :: (string()) -> 'ok'). --spec(debug/2 :: (string(), [any()]) -> 'ok'). --spec(info/1 :: (string()) -> 'ok'). --spec(info/2 :: (string(), [any()]) -> 'ok'). --spec(warning/1 :: (string()) -> 'ok'). --spec(warning/2 :: (string(), [any()]) -> 'ok'). --spec(error/1 :: (string()) -> 'ok'). --spec(error/2 :: (string(), [any()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -debug(Fmt) -> - gen_server:cast(?SERVER, {debug, Fmt}). - -debug(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {debug, Fmt, Args}). - -message(Direction, Channel, MethodRecord, Content) -> - gen_server:cast(?SERVER, - {message, Direction, Channel, MethodRecord, Content}). - -info(Fmt) -> - gen_server:cast(?SERVER, {info, Fmt}). - -info(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {info, Fmt, Args}). - -warning(Fmt) -> - gen_server:cast(?SERVER, {warning, Fmt}). - -warning(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {warning, Fmt, Args}). - -error(Fmt) -> - gen_server:cast(?SERVER, {error, Fmt}). - -error(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {error, Fmt, Args}). - -%%-------------------------------------------------------------------- - -init([]) -> {ok, none}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({debug, Fmt}, State) -> - io:format("debug:: "), io:format(Fmt), - error_logger:info_msg("debug:: " ++ Fmt), - {noreply, State}; -handle_cast({debug, Fmt, Args}, State) -> - io:format("debug:: "), io:format(Fmt, Args), - error_logger:info_msg("debug:: " ++ Fmt, Args), - {noreply, State}; -handle_cast({message, Direction, Channel, MethodRecord, Content}, State) -> - io:format("~s ch~p ~p~n", - [case Direction of - in -> "-->"; - out -> "<--" end, - Channel, - {MethodRecord, Content}]), - {noreply, State}; -handle_cast({info, Fmt}, State) -> - error_logger:info_msg(Fmt), - {noreply, State}; -handle_cast({info, Fmt, Args}, State) -> - error_logger:info_msg(Fmt, Args), - {noreply, State}; -handle_cast({warning, Fmt}, State) -> - error_logger:warning_msg(Fmt), - {noreply, State}; -handle_cast({warning, Fmt, Args}, State) -> - error_logger:warning_msg(Fmt, Args), - {noreply, State}; -handle_cast({error, Fmt}, State) -> - error_logger:error_msg(Fmt), - {noreply, State}; -handle_cast({error, Fmt, Args}, State) -> - error_logger:error_msg(Fmt, Args), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl deleted file mode 100644 index 2f8c940b..00000000 --- a/src/rabbit_memory_monitor.erl +++ /dev/null @@ -1,280 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - -%% This module handles the node-wide memory statistics. -%% It receives statistics from all queues, counts the desired -%% queue length (in seconds), and sends this information back to -%% queues. - --module(rabbit_memory_monitor). - --behaviour(gen_server2). - --export([start_link/0, update/0, register/2, deregister/1, - report_ram_duration/2, stop/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(process, {pid, reported, sent, callback, monitor}). - --record(state, {timer, %% 'internal_update' timer - queue_durations, %% ets #process - queue_duration_sum, %% sum of all queue_durations - queue_duration_count, %% number of elements in sum - memory_limit, %% how much memory we intend to use - desired_duration %% the desired queue duration - }). - --define(SERVER, ?MODULE). --define(DEFAULT_UPDATE_INTERVAL, 2500). --define(TABLE_NAME, ?MODULE). - -%% Because we have a feedback loop here, we need to ensure that we -%% have some space for when the queues don't quite respond as fast as -%% we would like, or when there is buffering going on in other parts -%% of the system. In short, we aim to stay some distance away from -%% when the memory alarms will go off, which cause backpressure (of -%% some sort) on producers. Note that all other Thresholds are -%% relative to this scaling. --define(MEMORY_LIMIT_SCALING, 0.4). - --define(LIMIT_THRESHOLD, 0.5). %% don't limit queues when mem use is < this - -%% If all queues are pushed to disk (duration 0), then the sum of -%% their reported lengths will be 0. If memory then becomes available, -%% unless we manually intervene, the sum will remain 0, and the queues -%% will never get a non-zero duration. Thus when the mem use is < -%% SUM_INC_THRESHOLD, increase the sum artificially by SUM_INC_AMOUNT. --define(SUM_INC_THRESHOLD, 0.95). --define(SUM_INC_AMOUNT, 1.0). - -%% If user disabled vm_memory_monitor, let's assume 1GB of memory we can use. --define(MEMORY_SIZE_FOR_DISABLED_VMM, 1073741824). - --define(EPSILON, 0.000001). %% less than this and we clamp to 0 - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(update/0 :: () -> 'ok'). --spec(register/2 :: (pid(), {atom(),atom(),[any()]}) -> 'ok'). --spec(deregister/1 :: (pid()) -> 'ok'). --spec(report_ram_duration/2 :: - (pid(), float() | 'infinity') -> number() | 'infinity'). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -update() -> - gen_server2:cast(?SERVER, update). - -register(Pid, MFA = {_M, _F, _A}) -> - gen_server2:call(?SERVER, {register, Pid, MFA}, infinity). - -deregister(Pid) -> - gen_server2:cast(?SERVER, {deregister, Pid}). - -report_ram_duration(Pid, QueueDuration) -> - gen_server2:call(?SERVER, - {report_ram_duration, Pid, QueueDuration}, infinity). - -stop() -> - gen_server2:cast(?SERVER, stop). - -%%---------------------------------------------------------------------------- -%% Gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - MemoryLimit = trunc(?MEMORY_LIMIT_SCALING * - (try - vm_memory_monitor:get_memory_limit() - catch - exit:{noproc, _} -> ?MEMORY_SIZE_FOR_DISABLED_VMM - end)), - - {ok, TRef} = timer:apply_interval(?DEFAULT_UPDATE_INTERVAL, - ?SERVER, update, []), - - Ets = ets:new(?TABLE_NAME, [set, private, {keypos, #process.pid}]), - - {ok, internal_update( - #state { timer = TRef, - queue_durations = Ets, - queue_duration_sum = 0.0, - queue_duration_count = 0, - memory_limit = MemoryLimit, - desired_duration = infinity })}. - -handle_call({report_ram_duration, Pid, QueueDuration}, From, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations, - desired_duration = SendDuration }) -> - - [Proc = #process { reported = PrevQueueDuration }] = - ets:lookup(Durations, Pid), - - gen_server2:reply(From, SendDuration), - - {Sum1, Count1} = - case {PrevQueueDuration, QueueDuration} of - {infinity, infinity} -> {Sum, Count}; - {infinity, _} -> {Sum + QueueDuration, Count + 1}; - {_, infinity} -> {Sum - PrevQueueDuration, Count - 1}; - {_, _} -> {Sum - PrevQueueDuration + QueueDuration, - Count} - end, - true = ets:insert(Durations, Proc #process { reported = QueueDuration, - sent = SendDuration }), - {noreply, State #state { queue_duration_sum = zero_clamp(Sum1), - queue_duration_count = Count1 }}; - -handle_call({register, Pid, MFA}, _From, - State = #state { queue_durations = Durations }) -> - MRef = erlang:monitor(process, Pid), - true = ets:insert(Durations, #process { pid = Pid, reported = infinity, - sent = infinity, callback = MFA, - monitor = MRef }), - {reply, ok, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast({deregister, Pid}, State) -> - {noreply, internal_deregister(Pid, true, State)}; - -handle_cast(stop, State) -> - {stop, normal, State}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, State) -> - {noreply, internal_deregister(Pid, false, State)}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state { timer = TRef }) -> - timer:cancel(TRef), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -zero_clamp(Sum) -> - case Sum < ?EPSILON of - true -> 0.0; - false -> Sum - end. - -internal_deregister(Pid, Demonitor, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations }) -> - case ets:lookup(Durations, Pid) of - [] -> State; - [#process { reported = PrevQueueDuration, monitor = MRef }] -> - true = case Demonitor of - true -> erlang:demonitor(MRef); - false -> true - end, - {Sum1, Count1} = - case PrevQueueDuration of - infinity -> {Sum, Count}; - _ -> {zero_clamp(Sum - PrevQueueDuration), - Count - 1} - end, - true = ets:delete(Durations, Pid), - State #state { queue_duration_sum = Sum1, - queue_duration_count = Count1 } - end. - -internal_update(State = #state { memory_limit = Limit, - queue_durations = Durations, - desired_duration = DesiredDurationAvg, - queue_duration_sum = Sum, - queue_duration_count = Count }) -> - MemoryRatio = erlang:memory(total) / Limit, - DesiredDurationAvg1 = - case MemoryRatio < ?LIMIT_THRESHOLD orelse Count == 0 of - true -> - infinity; - false -> - Sum1 = case MemoryRatio < ?SUM_INC_THRESHOLD of - true -> Sum + ?SUM_INC_AMOUNT; - false -> Sum - end, - (Sum1 / Count) / MemoryRatio - end, - State1 = State #state { desired_duration = DesiredDurationAvg1 }, - - %% only inform queues immediately if the desired duration has - %% decreased - case DesiredDurationAvg1 == infinity orelse - (DesiredDurationAvg /= infinity andalso - DesiredDurationAvg1 >= DesiredDurationAvg) of - true -> - ok; - false -> - true = - ets:foldl( - fun (Proc = #process { reported = QueueDuration, - sent = PrevSendDuration, - callback = {M, F, A} }, true) -> - case (case {QueueDuration, PrevSendDuration} of - {infinity, infinity} -> - true; - {infinity, D} -> - DesiredDurationAvg1 < D; - {D, infinity} -> - DesiredDurationAvg1 < D; - {D1, D2} -> - DesiredDurationAvg1 < - lists:min([D1,D2]) - end) of - true -> - ok = erlang:apply( - M, F, A ++ [DesiredDurationAvg1]), - ets:insert( - Durations, - Proc #process {sent = DesiredDurationAvg1}); - false -> - true - end - end, true, Durations) - end, - State1. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl deleted file mode 100644 index e36b1dd1..00000000 --- a/src/rabbit_misc.erl +++ /dev/null @@ -1,863 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_misc). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --include_lib("kernel/include/file.hrl"). - --export([method_record_type/1, polite_pause/0, polite_pause/1]). --export([die/1, frame_error/2, amqp_error/4, - protocol_error/3, protocol_error/4, protocol_error/1]). --export([not_found/1, assert_args_equivalence/4]). --export([dirty_read/1]). --export([table_lookup/2]). --export([r/3, r/2, r_arg/4, rs/1]). --export([enable_cover/0, report_cover/0]). --export([enable_cover/1, report_cover/1]). --export([start_cover/1]). --export([throw_on_error/2, with_exit_handler/2, filter_exit_map/2]). --export([with_user/2, with_user_and_vhost/3]). --export([execute_mnesia_transaction/1]). --export([execute_mnesia_transaction/2]). --export([execute_mnesia_tx_with_tail/1]). --export([ensure_ok/2]). --export([makenode/1, nodeparts/1, cookie_hash/0, tcp_name/3]). --export([upmap/2, map_in_order/2]). --export([table_fold/3]). --export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). --export([read_term_file/1, write_term_file/2]). --export([append_file/2, ensure_parent_dirs_exist/1]). --export([format_stderr/2]). --export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, queue_fold/3]). --export([sort_field_table/1]). --export([pid_to_string/1, string_to_pid/1]). --export([version_compare/2, version_compare/3]). --export([recursive_delete/1, recursive_copy/2, dict_cons/3, orddict_cons/3, - unlink_and_capture_exit/1]). --export([get_options/2]). --export([all_module_attributes/1, build_acyclic_graph/3]). --export([now_ms/0]). --export([lock_file/1]). --export([const_ok/1, const/1]). --export([ntoa/1, ntoab/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([resource_name/0, thunk/1, const/1]). - --type(ok_or_error() :: rabbit_types:ok_or_error(any())). --type(thunk(T) :: fun(() -> T)). --type(const(T) :: fun((any()) -> T)). --type(resource_name() :: binary()). --type(optdef() :: {flag, string()} | {option, string(), any()}). --type(channel_or_connection_exit() - :: rabbit_types:channel_exit() | rabbit_types:connection_exit()). --type(digraph_label() :: term()). --type(graph_vertex_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph_label()}])). --type(graph_edge_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph:vertex()}])). - --spec(method_record_type/1 :: (rabbit_framing:amqp_method_record()) - -> rabbit_framing:amqp_method_name()). --spec(polite_pause/0 :: () -> 'done'). --spec(polite_pause/1 :: (non_neg_integer()) -> 'done'). --spec(die/1 :: - (rabbit_framing:amqp_exception()) -> channel_or_connection_exit()). --spec(frame_error/2 :: (rabbit_framing:amqp_method_name(), binary()) - -> rabbit_types:connection_exit()). --spec(amqp_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) - -> rabbit_types:amqp_error()). --spec(protocol_error/3 :: (rabbit_framing:amqp_exception(), string(), [any()]) - -> channel_or_connection_exit()). --spec(protocol_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) -> channel_or_connection_exit()). --spec(protocol_error/1 :: - (rabbit_types:amqp_error()) -> channel_or_connection_exit()). --spec(not_found/1 :: (rabbit_types:r(atom())) -> rabbit_types:channel_exit()). --spec(assert_args_equivalence/4 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table(), - rabbit_types:r(any()), [binary()]) -> - 'ok' | rabbit_types:connection_exit()). --spec(dirty_read/1 :: - ({atom(), any()}) -> rabbit_types:ok_or_error2(any(), 'not_found')). --spec(table_lookup/2 :: - (rabbit_framing:amqp_table(), binary()) - -> 'undefined' | {rabbit_framing:amqp_field_type(), any()}). --spec(r/2 :: (rabbit_types:vhost(), K) - -> rabbit_types:r3(rabbit_types:vhost(), K, '_') - when is_subtype(K, atom())). --spec(r/3 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, resource_name()) - -> rabbit_types:r3(rabbit_types:vhost(), K, resource_name()) - when is_subtype(K, atom())). --spec(r_arg/4 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, - rabbit_framing:amqp_table(), binary()) - -> undefined | rabbit_types:r(K) - when is_subtype(K, atom())). --spec(rs/1 :: (rabbit_types:r(atom())) -> string()). --spec(enable_cover/0 :: () -> ok_or_error()). --spec(start_cover/1 :: ([{string(), string()} | string()]) -> 'ok'). --spec(report_cover/0 :: () -> 'ok'). --spec(enable_cover/1 :: ([file:filename() | atom()]) -> ok_or_error()). --spec(report_cover/1 :: ([file:filename() | atom()]) -> 'ok'). --spec(throw_on_error/2 :: - (atom(), thunk(rabbit_types:error(any()) | {ok, A} | A)) -> A). --spec(with_exit_handler/2 :: (thunk(A), thunk(A)) -> A). --spec(filter_exit_map/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(with_user/2 :: (rabbit_types:username(), thunk(A)) -> A). --spec(with_user_and_vhost/3 :: - (rabbit_types:username(), rabbit_types:vhost(), thunk(A)) - -> A). --spec(execute_mnesia_transaction/1 :: (thunk(A)) -> A). --spec(execute_mnesia_transaction/2 :: - (thunk(A), fun ((A, boolean()) -> B)) -> B). --spec(execute_mnesia_tx_with_tail/1 :: - (thunk(fun ((boolean()) -> B))) -> B | (fun ((boolean()) -> B))). --spec(ensure_ok/2 :: (ok_or_error(), atom()) -> 'ok'). --spec(makenode/1 :: ({string(), string()} | string()) -> node()). --spec(nodeparts/1 :: (node() | string()) -> {string(), string()}). --spec(cookie_hash/0 :: () -> string()). --spec(tcp_name/3 :: - (atom(), inet:ip_address(), rabbit_networking:ip_port()) - -> atom()). --spec(upmap/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(map_in_order/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(table_fold/3 :: (fun ((any(), A) -> A), A, atom()) -> A). --spec(dirty_read_all/1 :: (atom()) -> [any()]). --spec(dirty_foreach_key/2 :: (fun ((any()) -> any()), atom()) - -> 'ok' | 'aborted'). --spec(dirty_dump_log/1 :: (file:filename()) -> ok_or_error()). --spec(read_term_file/1 :: - (file:filename()) -> {'ok', [any()]} | rabbit_types:error(any())). --spec(write_term_file/2 :: (file:filename(), [any()]) -> ok_or_error()). --spec(append_file/2 :: (file:filename(), string()) -> ok_or_error()). --spec(ensure_parent_dirs_exist/1 :: (string()) -> 'ok'). --spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). --spec(start_applications/1 :: ([atom()]) -> 'ok'). --spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> integer()). --spec(queue_fold/3 :: (fun ((any(), B) -> B), B, queue()) -> B). --spec(sort_field_table/1 :: - (rabbit_framing:amqp_table()) -> rabbit_framing:amqp_table()). --spec(pid_to_string/1 :: (pid()) -> string()). --spec(string_to_pid/1 :: (string()) -> pid()). --spec(version_compare/2 :: (string(), string()) -> 'lt' | 'eq' | 'gt'). --spec(version_compare/3 :: - (string(), string(), ('lt' | 'lte' | 'eq' | 'gte' | 'gt')) - -> boolean()). --spec(recursive_delete/1 :: - ([file:filename()]) - -> rabbit_types:ok_or_error({file:filename(), any()})). --spec(recursive_copy/2 :: - (file:filename(), file:filename()) - -> rabbit_types:ok_or_error({file:filename(), file:filename(), any()})). --spec(dict_cons/3 :: (any(), any(), dict()) -> dict()). --spec(orddict_cons/3 :: (any(), any(), orddict:orddict()) -> orddict:orddict()). --spec(unlink_and_capture_exit/1 :: (pid()) -> 'ok'). --spec(get_options/2 :: ([optdef()], [string()]) - -> {[string()], [{string(), any()}]}). --spec(all_module_attributes/1 :: (atom()) -> [{atom(), [term()]}]). --spec(build_acyclic_graph/3 :: - (graph_vertex_fun(), graph_edge_fun(), [{atom(), [term()]}]) - -> rabbit_types:ok_or_error2(digraph(), - {'vertex', 'duplicate', digraph:vertex()} | - {'edge', ({bad_vertex, digraph:vertex()} | - {bad_edge, [digraph:vertex()]}), - digraph:vertex(), digraph:vertex()})). --spec(now_ms/0 :: () -> non_neg_integer()). --spec(lock_file/1 :: (file:filename()) -> rabbit_types:ok_or_error('eexist')). --spec(const_ok/1 :: (any()) -> 'ok'). --spec(const/1 :: (A) -> const(A)). --spec(ntoa/1 :: (inet:ip_address()) -> string()). --spec(ntoab/1 :: (inet:ip_address()) -> string()). - --endif. - -%%---------------------------------------------------------------------------- - -method_record_type(Record) -> - element(1, Record). - -polite_pause() -> - polite_pause(3000). - -polite_pause(N) -> - receive - after N -> done - end. - -die(Error) -> - protocol_error(Error, "~w", [Error]). - -frame_error(MethodName, BinaryFields) -> - protocol_error(frame_error, "cannot decode ~w", [BinaryFields], MethodName). - -amqp_error(Name, ExplanationFormat, Params, Method) -> - Explanation = lists:flatten(io_lib:format(ExplanationFormat, Params)), - #amqp_error{name = Name, explanation = Explanation, method = Method}. - -protocol_error(Name, ExplanationFormat, Params) -> - protocol_error(Name, ExplanationFormat, Params, none). - -protocol_error(Name, ExplanationFormat, Params, Method) -> - protocol_error(amqp_error(Name, ExplanationFormat, Params, Method)). - -protocol_error(#amqp_error{} = Error) -> - exit(Error). - -not_found(R) -> protocol_error(not_found, "no ~s", [rs(R)]). - -assert_args_equivalence(Orig, New, Name, Keys) -> - [assert_args_equivalence1(Orig, New, Name, Key) || Key <- Keys], - ok. - -assert_args_equivalence1(Orig, New, Name, Key) -> - case {table_lookup(Orig, Key), table_lookup(New, Key)} of - {Same, Same} -> ok; - {Orig1, New1} -> protocol_error( - precondition_failed, - "inequivalent arg '~s' for ~s: " - "received ~s but current is ~s", - [Key, rs(Name), val(New1), val(Orig1)]) - end. - -val(undefined) -> - "none"; -val({Type, Value}) -> - Fmt = case is_binary(Value) of - true -> "the value '~s' of type '~s'"; - false -> "the value '~w' of type '~s'" - end, - lists:flatten(io_lib:format(Fmt, [Value, Type])). - -dirty_read(ReadSpec) -> - case mnesia:dirty_read(ReadSpec) of - [Result] -> {ok, Result}; - [] -> {error, not_found} - end. - -table_lookup(Table, Key) -> - case lists:keysearch(Key, 1, Table) of - {value, {_, TypeBin, ValueBin}} -> {TypeBin, ValueBin}; - false -> undefined - end. - -r(#resource{virtual_host = VHostPath}, Kind, Name) - when is_binary(Name) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}; -r(VHostPath, Kind, Name) when is_binary(Name) andalso is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}. - -r(VHostPath, Kind) when is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = '_'}. - -r_arg(#resource{virtual_host = VHostPath}, Kind, Table, Key) -> - r_arg(VHostPath, Kind, Table, Key); -r_arg(VHostPath, Kind, Table, Key) -> - case table_lookup(Table, Key) of - {longstr, NameBin} -> r(VHostPath, Kind, NameBin); - undefined -> undefined - end. - -rs(#resource{virtual_host = VHostPath, kind = Kind, name = Name}) -> - lists:flatten(io_lib:format("~s '~s' in vhost '~s'", - [Kind, Name, VHostPath])). - -enable_cover() -> enable_cover(["."]). - -enable_cover(Dirs) -> - lists:foldl(fun (Dir, ok) -> - case cover:compile_beam_directory( - filename:join(lists:concat([Dir]),"ebin")) of - {error, _} = Err -> Err; - _ -> ok - end; - (_Dir, Err) -> - Err - end, ok, Dirs). - -start_cover(NodesS) -> - {ok, _} = cover:start([makenode(N) || N <- NodesS]), - ok. - -report_cover() -> report_cover(["."]). - -report_cover(Dirs) -> [report_cover1(lists:concat([Dir])) || Dir <- Dirs], ok. - -report_cover1(Root) -> - Dir = filename:join(Root, "cover"), - ok = filelib:ensure_dir(filename:join(Dir, "junk")), - lists:foreach(fun (F) -> file:delete(F) end, - filelib:wildcard(filename:join(Dir, "*.html"))), - {ok, SummaryFile} = file:open(filename:join(Dir, "summary.txt"), [write]), - {CT, NCT} = - lists:foldl( - fun (M,{CovTot, NotCovTot}) -> - {ok, {M, {Cov, NotCov}}} = cover:analyze(M, module), - ok = report_coverage_percentage(SummaryFile, - Cov, NotCov, M), - {ok,_} = cover:analyze_to_file( - M, - filename:join(Dir, atom_to_list(M) ++ ".html"), - [html]), - {CovTot+Cov, NotCovTot+NotCov} - end, - {0, 0}, - lists:sort(cover:modules())), - ok = report_coverage_percentage(SummaryFile, CT, NCT, 'TOTAL'), - ok = file:close(SummaryFile), - ok. - -report_coverage_percentage(File, Cov, NotCov, Mod) -> - io:fwrite(File, "~6.2f ~p~n", - [if - Cov+NotCov > 0 -> 100.0*Cov/(Cov+NotCov); - true -> 100.0 - end, - Mod]). - -throw_on_error(E, Thunk) -> - case Thunk() of - {error, Reason} -> throw({E, Reason}); - {ok, Res} -> Res; - Res -> Res - end. - -with_exit_handler(Handler, Thunk) -> - try - Thunk() - catch - exit:{R, _} when R =:= noproc; R =:= nodedown; - R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - Handler() - end. - -filter_exit_map(F, L) -> - Ref = make_ref(), - lists:filter(fun (R) -> R =/= Ref end, - [with_exit_handler( - fun () -> Ref end, - fun () -> F(I) end) || I <- L]). - -with_user(Username, Thunk) -> - fun () -> - case mnesia:read({rabbit_user, Username}) of - [] -> - mnesia:abort({no_such_user, Username}); - [_U] -> - Thunk() - end - end. - -with_user_and_vhost(Username, VHostPath, Thunk) -> - with_user(Username, rabbit_vhost:with(VHostPath, Thunk)). - -execute_mnesia_transaction(TxFun) -> - %% Making this a sync_transaction allows us to use dirty_read - %% elsewhere and get a consistent result even when that read - %% executes on a different node. - case worker_pool:submit({mnesia, sync_transaction, [TxFun]}) of - {atomic, Result} -> Result; - {aborted, Reason} -> throw({error, Reason}) - end. - - -%% Like execute_mnesia_transaction/1 with additional Pre- and Post- -%% commit function -execute_mnesia_transaction(TxFun, PrePostCommitFun) -> - case mnesia:is_transaction() of - true -> throw(unexpected_transaction); - false -> ok - end, - PrePostCommitFun(execute_mnesia_transaction( - fun () -> - Result = TxFun(), - PrePostCommitFun(Result, true), - Result - end), false). - -%% Like execute_mnesia_transaction/2, but TxFun is expected to return a -%% TailFun which gets called immediately before and after the tx commit -execute_mnesia_tx_with_tail(TxFun) -> - case mnesia:is_transaction() of - true -> execute_mnesia_transaction(TxFun); - false -> TailFun = execute_mnesia_transaction( - fun () -> - TailFun1 = TxFun(), - TailFun1(true), - TailFun1 - end), - TailFun(false) - end. - -ensure_ok(ok, _) -> ok; -ensure_ok({error, Reason}, ErrorTag) -> throw({error, {ErrorTag, Reason}}). - -makenode({Prefix, Suffix}) -> - list_to_atom(lists:append([Prefix, "@", Suffix])); -makenode(NodeStr) -> - makenode(nodeparts(NodeStr)). - -nodeparts(Node) when is_atom(Node) -> - nodeparts(atom_to_list(Node)); -nodeparts(NodeStr) -> - case lists:splitwith(fun (E) -> E =/= $@ end, NodeStr) of - {Prefix, []} -> {_, Suffix} = nodeparts(node()), - {Prefix, Suffix}; - {Prefix, Suffix} -> {Prefix, tl(Suffix)} - end. - -cookie_hash() -> - base64:encode_to_string(erlang:md5(atom_to_list(erlang:get_cookie()))). - -tcp_name(Prefix, IPAddress, Port) - when is_atom(Prefix) andalso is_number(Port) -> - list_to_atom( - lists:flatten( - io_lib:format("~w_~s:~w", - [Prefix, inet_parse:ntoa(IPAddress), Port]))). - -%% This is a modified version of Luke Gorrie's pmap - -%% http://lukego.livejournal.com/6753.html - that doesn't care about -%% the order in which results are received. -%% -%% WARNING: This is is deliberately lightweight rather than robust -- if F -%% throws, upmap will hang forever, so make sure F doesn't throw! -upmap(F, L) -> - Parent = self(), - Ref = make_ref(), - [receive {Ref, Result} -> Result end - || _ <- [spawn(fun () -> Parent ! {Ref, F(X)} end) || X <- L]]. - -map_in_order(F, L) -> - lists:reverse( - lists:foldl(fun (E, Acc) -> [F(E) | Acc] end, [], L)). - -%% Fold over each entry in a table, executing the cons function in a -%% transaction. This is often far more efficient than wrapping a tx -%% around the lot. -%% -%% We ignore entries that have been modified or removed. -table_fold(F, Acc0, TableName) -> - lists:foldl( - fun (E, Acc) -> execute_mnesia_transaction( - fun () -> case mnesia:match_object(TableName, E, read) of - [] -> Acc; - _ -> F(E, Acc) - end - end) - end, Acc0, dirty_read_all(TableName)). - -dirty_read_all(TableName) -> - mnesia:dirty_select(TableName, [{'$1',[],['$1']}]). - -dirty_foreach_key(F, TableName) -> - dirty_foreach_key1(F, TableName, mnesia:dirty_first(TableName)). - -dirty_foreach_key1(_F, _TableName, '$end_of_table') -> - ok; -dirty_foreach_key1(F, TableName, K) -> - case catch mnesia:dirty_next(TableName, K) of - {'EXIT', _} -> - aborted; - NextKey -> - F(K), - dirty_foreach_key1(F, TableName, NextKey) - end. - -dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, - {mode, read_only}, - {file, FileName}]), - dirty_dump_log1(LH, disk_log:chunk(LH, start)), - disk_log:close(LH). - -dirty_dump_log1(_LH, eof) -> - io:format("Done.~n"); -dirty_dump_log1(LH, {K, Terms}) -> - io:format("Chunk: ~p~n", [Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)); -dirty_dump_log1(LH, {K, Terms, BadBytes}) -> - io:format("Bad Chunk, ~p: ~p~n", [BadBytes, Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)). - - -read_term_file(File) -> file:consult(File). - -write_term_file(File, Terms) -> - file:write_file(File, list_to_binary([io_lib:format("~w.~n", [Term]) || - Term <- Terms])). - -append_file(File, Suffix) -> - case file:read_file_info(File) of - {ok, FInfo} -> append_file(File, FInfo#file_info.size, Suffix); - {error, enoent} -> append_file(File, 0, Suffix); - Error -> Error - end. - -append_file(_, _, "") -> - ok; -append_file(File, 0, Suffix) -> - case file:open([File, Suffix], [append]) of - {ok, Fd} -> file:close(Fd); - Error -> Error - end; -append_file(File, _, Suffix) -> - case file:read_file(File) of - {ok, Data} -> file:write_file([File, Suffix], Data, [append]); - Error -> Error - end. - -ensure_parent_dirs_exist(Filename) -> - case filelib:ensure_dir(Filename) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_parent_dirs, Filename, Reason}}) - end. - -format_stderr(Fmt, Args) -> - case os:type() of - {unix, _} -> - Port = open_port({fd, 0, 2}, [out]), - port_command(Port, io_lib:format(Fmt, Args)), - port_close(Port); - {win32, _} -> - %% stderr on Windows is buffered and I can't figure out a - %% way to trigger a fflush(stderr) in Erlang. So rather - %% than risk losing output we write to stdout instead, - %% which appears to be unbuffered. - io:format(Fmt, Args) - end, - ok. - -manage_applications(Iterate, Do, Undo, SkipError, ErrorTag, Apps) -> - Iterate(fun (App, Acc) -> - case Do(App) of - ok -> [App | Acc]; - {error, {SkipError, _}} -> Acc; - {error, Reason} -> - lists:foreach(Undo, Acc), - throw({error, {ErrorTag, App, Reason}}) - end - end, [], Apps), - ok. - -start_applications(Apps) -> - manage_applications(fun lists:foldl/3, - fun application:start/1, - fun application:stop/1, - already_started, - cannot_start_application, - Apps). - -stop_applications(Apps) -> - manage_applications(fun lists:foldr/3, - fun application:stop/1, - fun application:start/1, - not_started, - cannot_stop_application, - Apps). - -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N == T of - true -> T; - false -> 1 + T - end. - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -%% Sorts a list of AMQP table fields as per the AMQP spec -sort_field_table(Arguments) -> - lists:keysort(1, Arguments). - -%% This provides a string representation of a pid that is the same -%% regardless of what node we are running on. The representation also -%% permits easy identification of the pid's node. -pid_to_string(Pid) when is_pid(Pid) -> - %% see http://erlang.org/doc/apps/erts/erl_ext_dist.html (8.10 and - %% 8.7) - <<131,103,100,NodeLen:16,NodeBin:NodeLen/binary,Id:32,Ser:32,Cre:8>> - = term_to_binary(Pid), - Node = binary_to_term(<<131,100,NodeLen:16,NodeBin:NodeLen/binary>>), - lists:flatten(io_lib:format("<~w.~B.~B.~B>", [Node, Cre, Id, Ser])). - -%% inverse of above -string_to_pid(Str) -> - Err = {error, {invalid_pid_syntax, Str}}, - %% The \ before the trailing $ is only there to keep emacs - %% font-lock from getting confused. - case re:run(Str, "^<(.*)\\.(\\d+)\\.(\\d+)\\.(\\d+)>\$", - [{capture,all_but_first,list}]) of - {match, [NodeStr, CreStr, IdStr, SerStr]} -> - %% the NodeStr atom might be quoted, so we have to parse - %% it rather than doing a simple list_to_atom - NodeAtom = case erl_scan:string(NodeStr) of - {ok, [{atom, _, X}], _} -> X; - {error, _, _} -> throw(Err) - end, - <<131,NodeEnc/binary>> = term_to_binary(NodeAtom), - [Cre, Id, Ser] = lists:map(fun list_to_integer/1, - [CreStr, IdStr, SerStr]), - binary_to_term(<<131,103,NodeEnc/binary,Id:32,Ser:32,Cre:8>>); - nomatch -> - throw(Err) - end. - -version_compare(A, B, lte) -> - case version_compare(A, B) of - eq -> true; - lt -> true; - gt -> false - end; -version_compare(A, B, gte) -> - case version_compare(A, B) of - eq -> true; - gt -> true; - lt -> false - end; -version_compare(A, B, Result) -> - Result =:= version_compare(A, B). - -version_compare(A, A) -> - eq; -version_compare([], [$0 | B]) -> - version_compare([], dropdot(B)); -version_compare([], _) -> - lt; %% 2.3 < 2.3.1 -version_compare([$0 | A], []) -> - version_compare(dropdot(A), []); -version_compare(_, []) -> - gt; %% 2.3.1 > 2.3 -version_compare(A, B) -> - {AStr, ATl} = lists:splitwith(fun (X) -> X =/= $. end, A), - {BStr, BTl} = lists:splitwith(fun (X) -> X =/= $. end, B), - ANum = list_to_integer(AStr), - BNum = list_to_integer(BStr), - if ANum =:= BNum -> version_compare(dropdot(ATl), dropdot(BTl)); - ANum < BNum -> lt; - ANum > BNum -> gt - end. - -dropdot(A) -> lists:dropwhile(fun (X) -> X =:= $. end, A). - -recursive_delete(Files) -> - lists:foldl(fun (Path, ok ) -> recursive_delete1(Path); - (_Path, {error, _Err} = Error) -> Error - end, ok, Files). - -recursive_delete1(Path) -> - case filelib:is_dir(Path) of - false -> case file:delete(Path) of - ok -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Path, Err}} - end; - true -> case file:list_dir(Path) of - {ok, FileNames} -> - case lists:foldl( - fun (FileName, ok) -> - recursive_delete1( - filename:join(Path, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames) of - ok -> - case file:del_dir(Path) of - ok -> ok; - {error, Err} -> {error, {Path, Err}} - end; - {error, _Err} = Error -> - Error - end; - {error, Err} -> - {error, {Path, Err}} - end - end. - -recursive_copy(Src, Dest) -> - case filelib:is_dir(Src) of - false -> case file:copy(Src, Dest) of - {ok, _Bytes} -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Src, Dest, Err}} - end; - true -> case file:list_dir(Src) of - {ok, FileNames} -> - case file:make_dir(Dest) of - ok -> - lists:foldl( - fun (FileName, ok) -> - recursive_copy( - filename:join(Src, FileName), - filename:join(Dest, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames); - {error, Err} -> - {error, {Src, Dest, Err}} - end; - {error, Err} -> - {error, {Src, Dest, Err}} - end - end. - -dict_cons(Key, Value, Dict) -> - dict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -orddict_cons(Key, Value, Dict) -> - orddict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -unlink_and_capture_exit(Pid) -> - unlink(Pid), - receive {'EXIT', Pid, _} -> ok - after 0 -> ok - end. - -% Separate flags and options from arguments. -% get_options([{flag, "-q"}, {option, "-p", "/"}], -% ["set_permissions","-p","/","guest", -% "-q",".*",".*",".*"]) -% == {["set_permissions","guest",".*",".*",".*"], -% [{"-q",true},{"-p","/"}]} -get_options(Defs, As) -> - lists:foldl(fun(Def, {AsIn, RsIn}) -> - {AsOut, Value} = case Def of - {flag, Key} -> - get_flag(Key, AsIn); - {option, Key, Default} -> - get_option(Key, Default, AsIn) - end, - {AsOut, [{Key, Value} | RsIn]} - end, {As, []}, Defs). - -get_option(K, _Default, [K, V | As]) -> - {As, V}; -get_option(K, Default, [Nk | As]) -> - {As1, V} = get_option(K, Default, As), - {[Nk | As1], V}; -get_option(_, Default, As) -> - {As, Default}. - -get_flag(K, [K | As]) -> - {As, true}; -get_flag(K, [Nk | As]) -> - {As1, V} = get_flag(K, As), - {[Nk | As1], V}; -get_flag(_, []) -> - {[], false}. - -now_ms() -> - timer:now_diff(now(), {0,0,0}) div 1000. - -module_attributes(Module) -> - case catch Module:module_info(attributes) of - {'EXIT', {undef, [{Module, module_info, _} | _]}} -> - io:format("WARNING: module ~p not found, so not scanned for boot steps.~n", - [Module]), - []; - {'EXIT', Reason} -> - exit(Reason); - V -> - V - end. - -all_module_attributes(Name) -> - Modules = - lists:usort( - lists:append( - [Modules || {App, _, _} <- application:loaded_applications(), - {ok, Modules} <- [application:get_key(App, modules)]])), - lists:foldl( - fun (Module, Acc) -> - case lists:append([Atts || {N, Atts} <- module_attributes(Module), - N =:= Name]) of - [] -> Acc; - Atts -> [{Module, Atts} | Acc] - end - end, [], Modules). - - -build_acyclic_graph(VertexFun, EdgeFun, Graph) -> - G = digraph:new([acyclic]), - try - [case digraph:vertex(G, Vertex) of - false -> digraph:add_vertex(G, Vertex, Label); - _ -> ok = throw({graph_error, {vertex, duplicate, Vertex}}) - end || {Module, Atts} <- Graph, - {Vertex, Label} <- VertexFun(Module, Atts)], - [case digraph:add_edge(G, From, To) of - {error, E} -> throw({graph_error, {edge, E, From, To}}); - _ -> ok - end || {Module, Atts} <- Graph, - {From, To} <- EdgeFun(Module, Atts)], - {ok, G} - catch {graph_error, Reason} -> - true = digraph:delete(G), - {error, Reason} - end. - -%% TODO: When we stop supporting Erlang prior to R14, this should be -%% replaced with file:open [write, exclusive] -lock_file(Path) -> - case filelib:is_file(Path) of - true -> {error, eexist}; - false -> {ok, Lock} = file:open(Path, [write]), - ok = file:close(Lock) - end. - -const_ok(_) -> ok. -const(X) -> fun (_) -> X end. - -%% Format IPv4-mapped IPv6 addresses as IPv4, since they're what we see -%% when IPv6 is enabled but not used (i.e. 99% of the time). -ntoa({0,0,0,0,0,16#ffff,AB,CD}) -> - inet_parse:ntoa({AB bsr 8, AB rem 256, CD bsr 8, CD rem 256}); -ntoa(IP) -> - inet_parse:ntoa(IP). - -ntoab(IP) -> - Str = ntoa(IP), - case string:str(Str, ":") of - 0 -> Str; - _ -> "[" ++ Str ++ "]" - end. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl deleted file mode 100644 index 9bebae4b..00000000 --- a/src/rabbit_mnesia.erl +++ /dev/null @@ -1,614 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - --module(rabbit_mnesia). - --export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/1, force_cluster/1, reset/0, force_reset/0, - is_clustered/0, running_clustered_nodes/0, all_clustered_nodes/0, - empty_ram_only_tables/0, copy_db/1]). - --export([table_names/0]). - -%% create_tables/0 exported for helping embed RabbitMQ in or alongside -%% other mnesia-using Erlang applications, such as ejabberd --export([create_tables/0]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([node_type/0]). - --type(node_type() :: disc_only | disc | ram | unknown). --spec(status/0 :: () -> [{'nodes', [{node_type(), [node()]}]} | - {'running_nodes', [node()]}]). --spec(dir/0 :: () -> file:filename()). --spec(ensure_mnesia_dir/0 :: () -> 'ok'). --spec(init/0 :: () -> 'ok'). --spec(is_db_empty/0 :: () -> boolean()). --spec(cluster/1 :: ([node()]) -> 'ok'). --spec(force_cluster/1 :: ([node()]) -> 'ok'). --spec(cluster/2 :: ([node()], boolean()) -> 'ok'). --spec(reset/0 :: () -> 'ok'). --spec(force_reset/0 :: () -> 'ok'). --spec(is_clustered/0 :: () -> boolean()). --spec(running_clustered_nodes/0 :: () -> [node()]). --spec(all_clustered_nodes/0 :: () -> [node()]). --spec(empty_ram_only_tables/0 :: () -> 'ok'). --spec(create_tables/0 :: () -> 'ok'). --spec(copy_db/1 :: (file:filename()) -> rabbit_types:ok_or_error(any())). - --endif. - -%%---------------------------------------------------------------------------- - -status() -> - [{nodes, case mnesia:system_info(is_running) of - yes -> [{Key, Nodes} || - {Key, CopyType} <- [{disc_only, disc_only_copies}, - {disc, disc_copies}, - {ram, ram_copies}], - begin - Nodes = nodes_of_type(CopyType), - Nodes =/= [] - end]; - no -> case all_clustered_nodes() of - [] -> []; - Nodes -> [{unknown, Nodes}] - end - end}, - {running_nodes, running_clustered_nodes()}]. - -init() -> - ok = ensure_mnesia_running(), - ok = ensure_mnesia_dir(), - ok = init_db(read_cluster_nodes_config(), true), - ok. - -is_db_empty() -> - lists:all(fun (Tab) -> mnesia:dirty_first(Tab) == '$end_of_table' end, - table_names()). - -cluster(ClusterNodes) -> - cluster(ClusterNodes, false). -force_cluster(ClusterNodes) -> - cluster(ClusterNodes, true). - -%% Alter which disk nodes this node is clustered with. This can be a -%% subset of all the disk nodes in the cluster but can (and should) -%% include the node itself if it is to be a disk rather than a ram -%% node. If Force is false, only connections to online nodes are -%% allowed. -cluster(ClusterNodes, Force) -> - ok = ensure_mnesia_not_running(), - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - try - ok = init_db(ClusterNodes, Force), - ok = create_cluster_nodes_config(ClusterNodes) - after - mnesia:stop() - end, - ok. - -%% return node to its virgin state, where it is not member of any -%% cluster, has no cluster configuration, no local database, and no -%% persisted messages -reset() -> reset(false). -force_reset() -> reset(true). - -is_clustered() -> - RunningNodes = running_clustered_nodes(), - [node()] /= RunningNodes andalso [] /= RunningNodes. - -all_clustered_nodes() -> - mnesia:system_info(db_nodes). - -running_clustered_nodes() -> - mnesia:system_info(running_db_nodes). - -empty_ram_only_tables() -> - Node = node(), - lists:foreach( - fun (TabName) -> - case lists:member(Node, mnesia:table_info(TabName, ram_copies)) of - true -> {atomic, ok} = mnesia:clear_table(TabName); - false -> ok - end - end, table_names()), - ok. - -%%-------------------------------------------------------------------- - -nodes_of_type(Type) -> - %% This function should return the nodes of a certain type (ram, - %% disc or disc_only) in the current cluster. The type of nodes - %% is determined when the cluster is initially configured. - %% Specifically, we check whether a certain table, which we know - %% will be written to disk on a disc node, is stored on disk or in - %% RAM. - mnesia:table_info(rabbit_durable_exchange, Type). - -table_definitions() -> - [{rabbit_user, - [{record_name, internal_user}, - {attributes, record_info(fields, internal_user)}, - {disc_copies, [node()]}, - {match, #internal_user{_='_'}}]}, - {rabbit_user_permission, - [{record_name, user_permission}, - {attributes, record_info(fields, user_permission)}, - {disc_copies, [node()]}, - {match, #user_permission{user_vhost = #user_vhost{_='_'}, - permission = #permission{_='_'}, - _='_'}}]}, - {rabbit_vhost, - [{record_name, vhost}, - {attributes, record_info(fields, vhost)}, - {disc_copies, [node()]}, - {match, #vhost{_='_'}}]}, - {rabbit_listener, - [{record_name, listener}, - {attributes, record_info(fields, listener)}, - {type, bag}, - {match, #listener{_='_'}}]}, - {rabbit_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {disc_copies, [node()]}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_reverse_route, - [{record_name, reverse_route}, - {attributes, record_info(fields, reverse_route)}, - {type, ordered_set}, - {match, #reverse_route{reverse_binding = reverse_binding_match(), - _='_'}}]}, - {rabbit_topic_trie_edge, - [{record_name, topic_trie_edge}, - {attributes, record_info(fields, topic_trie_edge)}, - {type, ordered_set}, - {match, #topic_trie_edge{trie_edge = trie_edge_match(), _='_'}}]}, - {rabbit_topic_trie_binding, - [{record_name, topic_trie_binding}, - {attributes, record_info(fields, topic_trie_binding)}, - {type, ordered_set}, - {match, #topic_trie_binding{trie_binding = trie_binding_match(), - _='_'}}]}, - %% Consider the implications to nodes_of_type/1 before altering - %% the next entry. - {rabbit_durable_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {disc_copies, [node()]}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_durable_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {disc_copies, [node()]}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}, - {rabbit_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}]. - -binding_match() -> - #binding{source = exchange_name_match(), - destination = binding_destination_match(), - _='_'}. -reverse_binding_match() -> - #reverse_binding{destination = binding_destination_match(), - source = exchange_name_match(), - _='_'}. -binding_destination_match() -> - resource_match('_'). -trie_edge_match() -> - #trie_edge{exchange_name = exchange_name_match(), - _='_'}. -trie_binding_match() -> - #trie_edge{exchange_name = exchange_name_match(), - _='_'}. -exchange_name_match() -> - resource_match(exchange). -queue_name_match() -> - resource_match(queue). -resource_match(Kind) -> - #resource{kind = Kind, _='_'}. - -table_names() -> - [Tab || {Tab, _} <- table_definitions()]. - -replicated_table_names() -> - [Tab || {Tab, TabDef} <- table_definitions(), - not lists:member({local_content, true}, TabDef) - ]. - -dir() -> mnesia:system_info(directory). - -ensure_mnesia_dir() -> - MnesiaDir = dir() ++ "/", - case filelib:ensure_dir(MnesiaDir) of - {error, Reason} -> - throw({error, {cannot_create_mnesia_dir, MnesiaDir, Reason}}); - ok -> - ok - end. - -ensure_mnesia_running() -> - case mnesia:system_info(is_running) of - yes -> ok; - no -> throw({error, mnesia_not_running}) - end. - -ensure_mnesia_not_running() -> - case mnesia:system_info(is_running) of - no -> ok; - yes -> throw({error, mnesia_unexpectedly_running}) - end. - -ensure_schema_integrity() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - throw({error, {schema_integrity_check_failed, Reason}}) - end. - -check_schema_integrity() -> - Tables = mnesia:system_info(tables), - case [Error || {Tab, TabDef} <- table_definitions(), - case lists:member(Tab, Tables) of - false -> - Error = {table_missing, Tab}, - true; - true -> - {_, ExpAttrs} = proplists:lookup(attributes, TabDef), - Attrs = mnesia:table_info(Tab, attributes), - Error = {table_attributes_mismatch, Tab, - ExpAttrs, Attrs}, - Attrs /= ExpAttrs - end] of - [] -> check_table_integrity(); - Errors -> {error, Errors} - end. - -check_table_integrity() -> - ok = wait_for_tables(), - case lists:all(fun ({Tab, TabDef}) -> - {_, Match} = proplists:lookup(match, TabDef), - read_test_table(Tab, Match) - end, table_definitions()) of - true -> ok; - false -> {error, invalid_table_content} - end. - -read_test_table(Tab, Match) -> - case mnesia:dirty_first(Tab) of - '$end_of_table' -> - true; - Key -> - ObjList = mnesia:dirty_read(Tab, Key), - MatchComp = ets:match_spec_compile([{Match, [], ['$_']}]), - case ets:match_spec_run(ObjList, MatchComp) of - ObjList -> true; - _ -> false - end - end. - -%% The cluster node config file contains some or all of the disk nodes -%% that are members of the cluster this node is / should be a part of. -%% -%% If the file is absent, the list is empty, or only contains the -%% current node, then the current node is a standalone (disk) -%% node. Otherwise it is a node that is part of a cluster as either a -%% disk node, if it appears in the cluster node config, or ram node if -%% it doesn't. - -cluster_nodes_config_filename() -> - dir() ++ "/cluster_nodes.config". - -create_cluster_nodes_config(ClusterNodes) -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:write_term_file(FileName, [ClusterNodes]) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_cluster_nodes_config, - FileName, Reason}}) - end. - -read_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - {ok, ClusterNodes} = application:get_env(rabbit, cluster_nodes), - ClusterNodes; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - FileName, Reason}}) - end. - -delete_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> - throw({error, {cannot_delete_cluster_nodes_config, - FileName, Reason}}) - end. - -%% Take a cluster node config and create the right kind of node - a -%% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. If Force is false, don't allow -%% connections to offline nodes. -init_db(ClusterNodes, Force) -> - UClusterNodes = lists:usort(ClusterNodes), - ProperClusterNodes = UClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ProperClusterNodes) of - {ok, Nodes} -> - case Force of - false -> FailedClusterNodes = ProperClusterNodes -- Nodes, - case FailedClusterNodes of - [] -> ok; - _ -> throw({error, {failed_to_cluster_with, - FailedClusterNodes, - "Mnesia could not connect " - "to some nodes."}}) - end; - true -> ok - end, - case {Nodes, mnesia:system_info(use_dir), all_clustered_nodes()} of - {[], true, [_]} -> - %% True single disc node, attempt upgrade - ok = wait_for_tables(), - case rabbit_upgrade:maybe_upgrade() of - ok -> ensure_schema_ok(); - version_not_available -> schema_ok_or_move() - end; - {[], true, _} -> - %% "Master" (i.e. without config) disc node in cluster, - %% verify schema - ok = wait_for_tables(), - ensure_version_ok(rabbit_upgrade:read_version()), - ensure_schema_ok(); - {[], false, _} -> - %% Nothing there at all, start from scratch - ok = create_schema(); - {[AnotherNode|_], _, _} -> - %% Subsequent node in cluster, catch up - ensure_version_ok(rabbit_upgrade:read_version()), - ensure_version_ok( - rpc:call(AnotherNode, rabbit_upgrade, read_version, [])), - IsDiskNode = ClusterNodes == [] orelse - lists:member(node(), ClusterNodes), - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_table_copies(case IsDiskNode of - true -> disc; - false -> ram - end), - ensure_schema_ok() - end; - {error, Reason} -> - %% one reason we may end up here is if we try to join - %% nodes together that are currently running standalone or - %% are members of a different cluster - throw({error, {unable_to_join_cluster, ClusterNodes, Reason}}) - end. - -schema_ok_or_move() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - %% NB: we cannot use rabbit_log here since it may not have been - %% started yet - error_logger:warning_msg("schema integrity check failed: ~p~n" - "moving database to backup location " - "and recreating schema from scratch~n", - [Reason]), - ok = move_db(), - ok = create_schema() - end. - -ensure_version_ok({ok, DiscVersion}) -> - case rabbit_upgrade:desired_version() of - DiscVersion -> ok; - DesiredVersion -> throw({error, {schema_mismatch, - DesiredVersion, DiscVersion}}) - end; -ensure_version_ok({error, _}) -> - ok = rabbit_upgrade:write_version(). - -ensure_schema_ok() -> - case check_schema_integrity() of - ok -> ok; - {error, Reason} -> throw({error, {schema_invalid, Reason}}) - end. - -create_schema() -> - mnesia:stop(), - rabbit_misc:ensure_ok(mnesia:create_schema([node()]), - cannot_create_schema), - rabbit_misc:ensure_ok(mnesia:start(), - cannot_start_mnesia), - ok = create_tables(), - ok = ensure_schema_integrity(), - ok = wait_for_tables(), - ok = rabbit_upgrade:write_version(). - -move_db() -> - mnesia:stop(), - MnesiaDir = filename:dirname(dir() ++ "/"), - {{Year, Month, Day}, {Hour, Minute, Second}} = erlang:universaltime(), - BackupDir = lists:flatten( - io_lib:format("~s_~w~2..0w~2..0w~2..0w~2..0w~2..0w", - [MnesiaDir, - Year, Month, Day, Hour, Minute, Second])), - case file:rename(MnesiaDir, BackupDir) of - ok -> - %% NB: we cannot use rabbit_log here since it may not have - %% been started yet - error_logger:warning_msg("moved database from ~s to ~s~n", - [MnesiaDir, BackupDir]), - ok; - {error, Reason} -> throw({error, {cannot_backup_mnesia, - MnesiaDir, BackupDir, Reason}}) - end, - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok. - -copy_db(Destination) -> - mnesia:stop(), - case rabbit_misc:recursive_copy(dir(), Destination) of - ok -> - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok = wait_for_tables(); - {error, E} -> - {error, E} - end. - -create_tables() -> - lists:foreach(fun ({Tab, TabDef}) -> - TabDef1 = proplists:delete(match, TabDef), - case mnesia:create_table(Tab, TabDef1) of - {atomic, ok} -> ok; - {aborted, Reason} -> - throw({error, {table_creation_failed, - Tab, TabDef1, Reason}}) - end - end, - table_definitions()), - ok. - -table_has_copy_type(TabDef, DiscType) -> - lists:member(node(), proplists:get_value(DiscType, TabDef, [])). - -create_local_table_copies(Type) -> - lists:foreach( - fun ({Tab, TabDef}) -> - HasDiscCopies = table_has_copy_type(TabDef, disc_copies), - HasDiscOnlyCopies = table_has_copy_type(TabDef, disc_only_copies), - LocalTab = proplists:get_bool(local_content, TabDef), - StorageType = - if - Type =:= disc orelse LocalTab -> - if - HasDiscCopies -> disc_copies; - HasDiscOnlyCopies -> disc_only_copies; - true -> ram_copies - end; -%% unused code - commented out to keep dialyzer happy -%% Type =:= disc_only -> -%% if -%% HasDiscCopies or HasDiscOnlyCopies -> -%% disc_only_copies; -%% true -> ram_copies -%% end; - Type =:= ram -> - ram_copies - end, - ok = create_local_table_copy(Tab, StorageType) - end, - table_definitions()), - ok. - -create_local_table_copy(Tab, Type) -> - StorageType = mnesia:table_info(Tab, storage_type), - {atomic, ok} = - if - StorageType == unknown -> - mnesia:add_table_copy(Tab, node(), Type); - StorageType /= Type -> - mnesia:change_table_copy_type(Tab, node(), Type); - true -> {atomic, ok} - end, - ok. - -wait_for_replicated_tables() -> wait_for_tables(replicated_table_names()). - -wait_for_tables() -> wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> - case mnesia:wait_for_tables(TableNames, 30000) of - ok -> ok; - {timeout, BadTabs} -> - throw({error, {timeout_waiting_for_tables, BadTabs}}); - {error, Reason} -> - throw({error, {failed_waiting_for_tables, Reason}}) - end. - -reset(Force) -> - ok = ensure_mnesia_not_running(), - Node = node(), - case Force of - true -> ok; - false -> - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - {Nodes, RunningNodes} = - try - ok = init(), - {all_clustered_nodes() -- [Node], - running_clustered_nodes() -- [Node]} - after - mnesia:stop() - end, - leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) - end, - ok = delete_cluster_nodes_config(), - %% remove persisted messages and any other garbage we find - ok = rabbit_misc:recursive_delete(filelib:wildcard(dir() ++ "/*")), - ok. - -leave_cluster([], _) -> ok; -leave_cluster(Nodes, RunningNodes) -> - %% find at least one running cluster node and instruct it to - %% remove our schema copy which will in turn result in our node - %% being removed as a cluster node from the schema, with that - %% change being propagated to all nodes - case lists:any( - fun (Node) -> - case rpc:call(Node, mnesia, del_table_copy, - [schema, node()]) of - {atomic, ok} -> true; - {badrpc, nodedown} -> false; - {aborted, Reason} -> - throw({error, {failed_to_leave_cluster, - Nodes, RunningNodes, Reason}}) - end - end, - RunningNodes) of - true -> ok; - false -> throw({error, {no_running_cluster_nodes, - Nodes, RunningNodes}}) - end. diff --git a/src/rabbit_msg_file.erl b/src/rabbit_msg_file.erl deleted file mode 100644 index cfea4982..00000000 --- a/src/rabbit_msg_file.erl +++ /dev/null @@ -1,121 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_file). - --export([append/3, read/2, scan/2]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_MARKER, 255). --define(FILE_PACKING_ADJUSTMENT, (1 + ?INTEGER_SIZE_BYTES)). --define(GUID_SIZE_BYTES, 16). --define(GUID_SIZE_BITS, (8 * ?GUID_SIZE_BYTES)). --define(SCAN_BLOCK_SIZE, 4194304). %% 4MB - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(io_device() :: any()). --type(position() :: non_neg_integer()). --type(msg_size() :: non_neg_integer()). --type(file_size() :: non_neg_integer()). - --spec(append/3 :: (io_device(), rabbit_guid:guid(), msg()) -> - rabbit_types:ok_or_error2(msg_size(), any())). --spec(read/2 :: (io_device(), msg_size()) -> - rabbit_types:ok_or_error2({rabbit_guid:guid(), msg()}, - any())). --spec(scan/2 :: (io_device(), file_size()) -> - {'ok', [{rabbit_guid:guid(), msg_size(), position()}], - position()}). - --endif. - -%%---------------------------------------------------------------------------- - -append(FileHdl, Guid, MsgBody) - when is_binary(Guid) andalso size(Guid) =:= ?GUID_SIZE_BYTES -> - MsgBodyBin = term_to_binary(MsgBody), - MsgBodyBinSize = size(MsgBodyBin), - Size = MsgBodyBinSize + ?GUID_SIZE_BYTES, - case file_handle_cache:append(FileHdl, - <>) of - ok -> {ok, Size + ?FILE_PACKING_ADJUSTMENT}; - KO -> KO - end. - -read(FileHdl, TotalSize) -> - Size = TotalSize - ?FILE_PACKING_ADJUSTMENT, - BodyBinSize = Size - ?GUID_SIZE_BYTES, - case file_handle_cache:read(FileHdl, TotalSize) of - {ok, <>} -> - {ok, {Guid, binary_to_term(MsgBodyBin)}}; - KO -> KO - end. - -scan(FileHdl, FileSize) when FileSize >= 0 -> - scan(FileHdl, FileSize, <<>>, 0, [], 0). - -scan(_FileHdl, FileSize, _Data, FileSize, Acc, ScanOffset) -> - {ok, Acc, ScanOffset}; -scan(FileHdl, FileSize, Data, ReadOffset, Acc, ScanOffset) -> - Read = lists:min([?SCAN_BLOCK_SIZE, (FileSize - ReadOffset)]), - case file_handle_cache:read(FileHdl, Read) of - {ok, Data1} -> - {Data2, Acc1, ScanOffset1} = - scan(<>, Acc, ScanOffset), - ReadOffset1 = ReadOffset + size(Data1), - scan(FileHdl, FileSize, Data2, ReadOffset1, Acc1, ScanOffset1); - _KO -> - {ok, Acc, ScanOffset} - end. - -scan(<<>>, Acc, Offset) -> - {<<>>, Acc, Offset}; -scan(<<0:?INTEGER_SIZE_BITS, _Rest/binary>>, Acc, Offset) -> - {<<>>, Acc, Offset}; %% Nothing to do other than stop. -scan(<>, Acc, Offset) -> - TotalSize = Size + ?FILE_PACKING_ADJUSTMENT, - case WriteMarker of - ?WRITE_OK_MARKER -> - %% Here we take option 5 from - %% http://www.erlang.org/cgi-bin/ezmlm-cgi?2:mss:1569 in - %% which we read the Guid as a number, and then convert it - %% back to a binary in order to work around bugs in - %% Erlang's GC. - <> = - <>, - <> = <>, - scan(Rest, [{Guid, TotalSize, Offset} | Acc], Offset + TotalSize); - _ -> - scan(Rest, Acc, Offset + TotalSize) - end; -scan(Data, Acc, Offset) -> - {Data, Acc, Offset}. diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl deleted file mode 100644 index e9c356e1..00000000 --- a/src/rabbit_msg_store.erl +++ /dev/null @@ -1,1958 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store). - --behaviour(gen_server2). - --export([start_link/4, successfully_recovered_state/1, - client_init/4, client_terminate/1, client_delete_and_terminate/1, - client_ref/1, close_all_indicated/1, - write/3, read/2, contains/2, remove/2, release/2, sync/3]). - --export([sync/1, set_maximum_since_use/2, - has_readers/2, combine_files/3, delete_file/2]). %% internal - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_call/3, prioritise_cast/2]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(CLEAN_FILENAME, "clean.dot"). --define(FILE_SUMMARY_FILENAME, "file_summary.ets"). - --define(BINARY_MODE, [raw, binary]). --define(READ_MODE, [read]). --define(READ_AHEAD_MODE, [read_ahead | ?READ_MODE]). --define(WRITE_MODE, [write]). - --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). - --define(HANDLE_CACHE_BUFFER_SIZE, 1048576). %% 1MB - -%%---------------------------------------------------------------------------- - --record(msstate, - { dir, %% store directory - index_module, %% the module for index ops - index_state, %% where are messages? - current_file, %% current file name as number - current_file_handle, %% current file handle since the last fsync? - file_handle_cache, %% file handle cache - on_sync, %% pending sync requests - sync_timer_ref, %% TRef for our interval timer - sum_valid_data, %% sum of valid data in all files - sum_file_size, %% sum of file sizes - pending_gc_completion, %% things to do once GC completes - gc_pid, %% pid of our GC - file_handles_ets, %% tid of the shared file handles table - file_summary_ets, %% tid of the file summary table - dedup_cache_ets, %% tid of dedup cache table - cur_file_cache_ets, %% tid of current file cache table - dying_clients, %% set of dying clients - clients, %% map of references of all registered clients - %% to callbacks - successfully_recovered, %% boolean: did we recover state? - file_size_limit, %% how big are our files allowed to get? - cref_to_guids %% client ref to synced messages mapping - }). - --record(client_msstate, - { server, - client_ref, - file_handle_cache, - index_state, - index_module, - dir, - gc_pid, - file_handles_ets, - file_summary_ets, - dedup_cache_ets, - cur_file_cache_ets - }). - --record(file_summary, - {file, valid_total_size, left, right, file_size, locked, readers}). - --record(gc_state, - { dir, - index_module, - index_state, - file_summary_ets, - file_handles_ets, - msg_store - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([gc_state/0, file_num/0]). - --type(gc_state() :: #gc_state { dir :: file:filename(), - index_module :: atom(), - index_state :: any(), - file_summary_ets :: ets:tid(), - file_handles_ets :: ets:tid(), - msg_store :: server() - }). - --type(server() :: pid() | atom()). --type(client_ref() :: binary()). --type(file_num() :: non_neg_integer()). --type(client_msstate() :: #client_msstate { - server :: server(), - client_ref :: client_ref(), - file_handle_cache :: dict(), - index_state :: any(), - index_module :: atom(), - dir :: file:filename(), - gc_pid :: pid(), - file_handles_ets :: ets:tid(), - file_summary_ets :: ets:tid(), - dedup_cache_ets :: ets:tid(), - cur_file_cache_ets :: ets:tid()}). --type(startup_fun_state() :: - {(fun ((A) -> 'finished' | {rabbit_guid:guid(), non_neg_integer(), A})), - A}). --type(maybe_guid_fun() :: 'undefined' | fun ((gb_set()) -> any())). --type(maybe_close_fds_fun() :: 'undefined' | fun (() -> 'ok')). --type(deletion_thunk() :: fun (() -> boolean())). - --spec(start_link/4 :: - (atom(), file:filename(), [binary()] | 'undefined', - startup_fun_state()) -> rabbit_types:ok_pid_or_error()). --spec(successfully_recovered_state/1 :: (server()) -> boolean()). --spec(client_init/4 :: (server(), client_ref(), maybe_guid_fun(), - maybe_close_fds_fun()) -> client_msstate()). --spec(client_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_delete_and_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_ref/1 :: (client_msstate()) -> client_ref()). --spec(write/3 :: (rabbit_guid:guid(), msg(), client_msstate()) -> 'ok'). --spec(read/2 :: (rabbit_guid:guid(), client_msstate()) -> - {rabbit_types:ok(msg()) | 'not_found', client_msstate()}). --spec(contains/2 :: (rabbit_guid:guid(), client_msstate()) -> boolean()). --spec(remove/2 :: ([rabbit_guid:guid()], client_msstate()) -> 'ok'). --spec(release/2 :: ([rabbit_guid:guid()], client_msstate()) -> 'ok'). --spec(sync/3 :: ([rabbit_guid:guid()], fun (() -> any()), client_msstate()) -> - 'ok'). - --spec(sync/1 :: (server()) -> 'ok'). --spec(set_maximum_since_use/2 :: (server(), non_neg_integer()) -> 'ok'). --spec(has_readers/2 :: (non_neg_integer(), gc_state()) -> boolean()). --spec(combine_files/3 :: (non_neg_integer(), non_neg_integer(), gc_state()) -> - deletion_thunk()). --spec(delete_file/2 :: (non_neg_integer(), gc_state()) -> deletion_thunk()). - --endif. - -%%---------------------------------------------------------------------------- - -%% We run GC whenever (garbage / sum_file_size) > ?GARBAGE_FRACTION -%% It is not recommended to set this to < 0.5 --define(GARBAGE_FRACTION, 0.5). - -%% The components: -%% -%% Index: this is a mapping from Guid to #msg_location{}: -%% {Guid, RefCount, File, Offset, TotalSize} -%% By default, it's in ets, but it's also pluggable. -%% FileSummary: this is an ets table which maps File to #file_summary{}: -%% {File, ValidTotalSize, Left, Right, FileSize, Locked, Readers} -%% -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the Index); how much useful data is in each file and which files -%% are on the left and right of each other. This is the purpose of the -%% FileSummary ets table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file. This is needed for garbage collection. -%% -%% When we discover that a file is now empty, we delete it. When we -%% discover that it can be combined with the useful data in either its -%% left or right neighbour, and overall, across all the files, we have -%% ((the amount of garbage) / (the sum of all file sizes)) > -%% ?GARBAGE_FRACTION, we start a garbage collection run concurrently, -%% which will compact the two files together. This keeps disk -%% utilisation high and aids performance. We deliberately do this -%% lazily in order to prevent doing GC on files which are soon to be -%% emptied (and hence deleted) soon. -%% -%% Given the compaction between two files, the left file (i.e. elder -%% file) is considered the ultimate destination for the good data in -%% the right file. If necessary, the good data in the left file which -%% is fragmented throughout the file is written out to a temporary -%% file, then read back in to form a contiguous chunk of good data at -%% the start of the left file. Thus the left file is garbage collected -%% and compacted. Then the good data from the right file is copied -%% onto the end of the left file. Index and FileSummary tables are -%% updated. -%% -%% On non-clean startup, we scan the files we discover, dealing with -%% the possibilites of a crash having occured during a compaction -%% (this consists of tidyup - the compaction is deliberately designed -%% such that data is duplicated on disk rather than risking it being -%% lost), and rebuild the FileSummary ets table and Index. -%% -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten. -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). -%% -%% Messages are reference-counted. When a message with the same guid -%% is written several times we only store it once, and only remove it -%% from the store when it has been removed the same number of times. -%% -%% The reference counts do not persist. Therefore the initialisation -%% function must be provided with a generator that produces ref count -%% deltas for all recovered messages. This is only used on startup -%% when the shutdown was non-clean. -%% -%% Read messages with a reference count greater than one are entered -%% into a message cache. The purpose of the cache is not especially -%% performance, though it can help there too, but prevention of memory -%% explosion. It ensures that as messages with a high reference count -%% are read from several processes they are read back as the same -%% binary object rather than multiples of identical binary -%% objects. -%% -%% Reads can be performed directly by clients without calling to the -%% server. This is safe because multiple file handles can be used to -%% read files. However, locking is used by the concurrent GC to make -%% sure that reads are not attempted from files which are in the -%% process of being garbage collected. -%% -%% When a message is removed, its reference count is decremented. Even -%% if the reference count becomes 0, its entry is not removed. This is -%% because in the event of the same message being sent to several -%% different queues, there is the possibility of one queue writing and -%% removing the message before other queues write it at all. Thus -%% accomodating 0-reference counts allows us to avoid unnecessary -%% writes here. Of course, there are complications: the file to which -%% the message has already been written could be locked pending -%% deletion or GC, which means we have to rewrite the message as the -%% original copy will now be lost. -%% -%% The server automatically defers reads, removes and contains calls -%% that occur which refer to files which are currently being -%% GC'd. Contains calls are only deferred in order to ensure they do -%% not overtake removes. -%% -%% The current file to which messages are being written has a -%% write-back cache. This is written to immediately by clients and can -%% be read from by clients too. This means that there are only ever -%% writes made to the current file, thus eliminating delays due to -%% flushing write buffers in order to be able to safely read from the -%% current file. The one exception to this is that on start up, the -%% cache is not populated with msgs found in the current file, and -%% thus in this case only, reads may have to come from the file -%% itself. The effect of this is that even if the msg_store process is -%% heavily overloaded, clients can still write and read messages with -%% very low latency and not block at all. -%% -%% Clients of the msg_store are required to register before using the -%% msg_store. This provides them with the necessary client-side state -%% to allow them to directly access the various caches and files. When -%% they terminate, they should deregister. They can do this by calling -%% either client_terminate/1 or client_delete_and_terminate/1. The -%% differences are: (a) client_terminate is synchronous. As a result, -%% if the msg_store is badly overloaded and has lots of in-flight -%% writes and removes to process, this will take some time to -%% return. However, once it does return, you can be sure that all the -%% actions you've issued to the msg_store have been processed. (b) Not -%% only is client_delete_and_terminate/1 asynchronous, but it also -%% permits writes and subsequent removes from the current -%% (terminating) client which are still in flight to be safely -%% ignored. Thus from the point of view of the msg_store itself, and -%% all from the same client: -%% -%% (T) = termination; (WN) = write of msg N; (RN) = remove of msg N -%% --> W1, W2, W1, R1, T, W3, R2, W2, R1, R2, R3, W4 --> -%% -%% The client obviously sent T after all the other messages (up to -%% W4), but because the msg_store prioritises messages, the T can be -%% promoted and thus received early. -%% -%% Thus at the point of the msg_store receiving T, we have messages 1 -%% and 2 with a refcount of 1. After T, W3 will be ignored because -%% it's an unknown message, as will R3, and W4. W2, R1 and R2 won't be -%% ignored because the messages that they refer to were already known -%% to the msg_store prior to T. However, it can be a little more -%% complex: after the first R2, the refcount of msg 2 is 0. At that -%% point, if a GC occurs or file deletion, msg 2 could vanish, which -%% would then mean that the subsequent W2 and R2 are then ignored. -%% -%% The use case then for client_delete_and_terminate/1 is if the -%% client wishes to remove everything it's written to the msg_store: -%% it issues removes for all messages it's written and not removed, -%% and then calls client_delete_and_terminate/1. At that point, any -%% in-flight writes (and subsequent removes) can be ignored, but -%% removes and writes for messages the msg_store already knows about -%% will continue to be processed normally (which will normally just -%% involve modifying the reference count, which is fast). Thus we save -%% disk bandwidth for writes which are going to be immediately removed -%% again by the the terminating client. -%% -%% We use a separate set to keep track of the dying clients in order -%% to keep that set, which is inspected on every write and remove, as -%% small as possible. Inspecting the set of all clients would degrade -%% performance with many healthy clients and few, if any, dying -%% clients, which is the typical case. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -start_link(Server, Dir, ClientRefs, StartupFunState) -> - gen_server2:start_link({local, Server}, ?MODULE, - [Server, Dir, ClientRefs, StartupFunState], - [{timeout, infinity}]). - -successfully_recovered_state(Server) -> - gen_server2:call(Server, successfully_recovered_state, infinity). - -client_init(Server, Ref, MsgOnDiskFun, CloseFDsFun) -> - {IState, IModule, Dir, GCPid, - FileHandlesEts, FileSummaryEts, DedupCacheEts, CurFileCacheEts} = - gen_server2:call( - Server, {new_client_state, Ref, MsgOnDiskFun, CloseFDsFun}, infinity), - #client_msstate { server = Server, - client_ref = Ref, - file_handle_cache = dict:new(), - index_state = IState, - index_module = IModule, - dir = Dir, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts }. - -client_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_call(CState, {client_terminate, Ref}). - -client_delete_and_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_cast(CState, {client_dying, Ref}), - ok = server_cast(CState, {client_delete, Ref}). - -client_ref(#client_msstate { client_ref = Ref }) -> Ref. - -write(Guid, Msg, - CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts, - client_ref = CRef }) -> - ok = update_msg_cache(CurFileCacheEts, Guid, Msg), - ok = server_cast(CState, {write, CRef, Guid}). - -read(Guid, - CState = #client_msstate { dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts }) -> - %% 1. Check the dedup cache - case fetch_and_increment_cache(DedupCacheEts, Guid) of - not_found -> - %% 2. Check the cur file cache - case ets:lookup(CurFileCacheEts, Guid) of - [] -> - Defer = fun() -> - {server_call(CState, {read, Guid}), CState} - end, - case index_lookup_positive_ref_count(Guid, CState) of - not_found -> Defer(); - MsgLocation -> client_read1(MsgLocation, Defer, CState) - end; - [{Guid, Msg, _CacheRefCount}] -> - %% Although we've found it, we don't know the - %% refcount, so can't insert into dedup cache - {{ok, Msg}, CState} - end; - Msg -> - {{ok, Msg}, CState} - end. - -contains(Guid, CState) -> server_call(CState, {contains, Guid}). -remove([], _CState) -> ok; -remove(Guids, CState = #client_msstate { client_ref = CRef }) -> - server_cast(CState, {remove, CRef, Guids}). -release([], _CState) -> ok; -release(Guids, CState) -> server_cast(CState, {release, Guids}). -sync(Guids, K, CState) -> server_cast(CState, {sync, Guids, K}). - -sync(Server) -> - gen_server2:cast(Server, sync). - -set_maximum_since_use(Server, Age) -> - gen_server2:cast(Server, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- -%% Client-side-only helpers -%%---------------------------------------------------------------------------- - -server_call(#client_msstate { server = Server }, Msg) -> - gen_server2:call(Server, Msg, infinity). - -server_cast(#client_msstate { server = Server }, Msg) -> - gen_server2:cast(Server, Msg). - -client_read1(#msg_location { guid = Guid, file = File } = MsgLocation, Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - case ets:lookup(FileSummaryEts, File) of - [] -> %% File has been GC'd and no longer exists. Go around again. - read(Guid, CState); - [#file_summary { locked = Locked, right = Right }] -> - client_read2(Locked, Right, MsgLocation, Defer, CState) - end. - -client_read2(false, undefined, _MsgLocation, Defer, _CState) -> - %% Although we've already checked both caches and not found the - %% message there, the message is apparently in the - %% current_file. We can only arrive here if we are trying to read - %% a message which we have not written, which is very odd, so just - %% defer. - %% - %% OR, on startup, the cur_file_cache is not populated with the - %% contents of the current file, thus reads from the current file - %% will end up here and will need to be deferred. - Defer(); -client_read2(true, _Right, _MsgLocation, Defer, _CState) -> - %% Of course, in the mean time, the GC could have run and our msg - %% is actually in a different file, unlocked. However, defering is - %% the safest and simplest thing to do. - Defer(); -client_read2(false, _Right, - MsgLocation = #msg_location { guid = Guid, file = File }, - Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - %% It's entirely possible that everything we're doing from here on - %% is for the wrong file, or a non-existent file, as a GC may have - %% finished. - safe_ets_update_counter( - FileSummaryEts, File, {#file_summary.readers, +1}, - fun (_) -> client_read3(MsgLocation, Defer, CState) end, - fun () -> read(Guid, CState) end). - -client_read3(#msg_location { guid = Guid, file = File }, Defer, - CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - gc_pid = GCPid, - client_ref = Ref }) -> - Release = - fun() -> ok = case ets:update_counter(FileSummaryEts, File, - {#file_summary.readers, -1}) of - 0 -> case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - rabbit_msg_store_gc:no_readers( - GCPid, File); - _ -> ok - end; - _ -> ok - end - end, - %% If a GC involving the file hasn't already started, it won't - %% start now. Need to check again to see if we've been locked in - %% the meantime, between lookup and update_counter (thus GC - %% started before our +1. In fact, it could have finished by now - %% too). - case ets:lookup(FileSummaryEts, File) of - [] -> %% GC has deleted our file, just go round again. - read(Guid, CState); - [#file_summary { locked = true }] -> - %% If we get a badarg here, then the GC has finished and - %% deleted our file. Try going around again. Otherwise, - %% just defer. - %% - %% badarg scenario: we lookup, msg_store locks, GC starts, - %% GC ends, we +1 readers, msg_store ets:deletes (and - %% unlocks the dest) - try Release(), - Defer() - catch error:badarg -> read(Guid, CState) - end; - [#file_summary { locked = false }] -> - %% Ok, we're definitely safe to continue - a GC involving - %% the file cannot start up now, and isn't running, so - %% nothing will tell us from now on to close the handle if - %% it's already open. - %% - %% Finally, we need to recheck that the msg is still at - %% the same place - it's possible an entire GC ran between - %% us doing the lookup and the +1 on the readers. (Same as - %% badarg scenario above, but we don't have a missing file - %% - we just have the /wrong/ file). - case index_lookup(Guid, CState) of - #msg_location { file = File } = MsgLocation -> - %% Still the same file. - {ok, CState1} = close_all_indicated(CState), - %% We are now guaranteed that the mark_handle_open - %% call will either insert_new correctly, or will - %% fail, but find the value is open, not close. - mark_handle_open(FileHandlesEts, File, Ref), - %% Could the msg_store now mark the file to be - %% closed? No: marks for closing are issued only - %% when the msg_store has locked the file. - {Msg, CState2} = %% This will never be the current file - read_from_disk(MsgLocation, CState1, DedupCacheEts), - Release(), %% this MUST NOT fail with badarg - {{ok, Msg}, CState2}; - #msg_location {} = MsgLocation -> %% different file! - Release(), %% this MUST NOT fail with badarg - client_read1(MsgLocation, Defer, CState); - not_found -> %% it seems not to exist. Defer, just to be sure. - try Release() %% this can badarg, same as locked case, above - catch error:badarg -> ok - end, - Defer() - end - end. - -clear_client(CRef, State = #msstate { cref_to_guids = CTG, - dying_clients = DyingClients }) -> - State #msstate { cref_to_guids = dict:erase(CRef, CTG), - dying_clients = sets:del_element(CRef, DyingClients) }. - - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([Server, BaseDir, ClientRefs, StartupFunState]) -> - process_flag(trap_exit, true), - - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - - Dir = filename:join(BaseDir, atom_to_list(Server)), - - {ok, IndexModule} = application:get_env(msg_store_index_module), - rabbit_log:info("~w: using ~p to provide index~n", [Server, IndexModule]), - - AttemptFileSummaryRecovery = - case ClientRefs of - undefined -> ok = rabbit_misc:recursive_delete([Dir]), - ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - false; - _ -> ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - recover_crashed_compactions(Dir) - end, - - %% if we found crashed compactions we trust neither the - %% file_summary nor the location index. Note the file_summary is - %% left empty here if it can't be recovered. - {FileSummaryRecovered, FileSummaryEts} = - recover_file_summary(AttemptFileSummaryRecovery, Dir), - - {CleanShutdown, IndexState, ClientRefs1} = - recover_index_and_client_refs(IndexModule, FileSummaryRecovered, - ClientRefs, Dir, Server), - Clients = dict:from_list( - [{CRef, {undefined, undefined}} || CRef <- ClientRefs1]), - %% CleanShutdown => msg location index and file_summary both - %% recovered correctly. - true = case {FileSummaryRecovered, CleanShutdown} of - {true, false} -> ets:delete_all_objects(FileSummaryEts); - _ -> true - end, - %% CleanShutdown <=> msg location index and file_summary both - %% recovered correctly. - - DedupCacheEts = ets:new(rabbit_msg_store_dedup_cache, [set, public]), - FileHandlesEts = ets:new(rabbit_msg_store_shared_file_handles, - [ordered_set, public]), - CurFileCacheEts = ets:new(rabbit_msg_store_cur_file, [set, public]), - - {ok, FileSizeLimit} = application:get_env(msg_store_file_size_limit), - - State = #msstate { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - current_file = 0, - current_file_handle = undefined, - file_handle_cache = dict:new(), - on_sync = [], - sync_timer_ref = undefined, - sum_valid_data = 0, - sum_file_size = 0, - pending_gc_completion = orddict:new(), - gc_pid = undefined, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts, - dying_clients = sets:new(), - clients = Clients, - successfully_recovered = CleanShutdown, - file_size_limit = FileSizeLimit, - cref_to_guids = dict:new() - }, - - %% If we didn't recover the msg location index then we need to - %% rebuild it now. - {Offset, State1 = #msstate { current_file = CurFile }} = - build_index(CleanShutdown, StartupFunState, State), - - %% read is only needed so that we can seek - {ok, CurHdl} = open_file(Dir, filenum_to_name(CurFile), - [read | ?WRITE_MODE]), - {ok, Offset} = file_handle_cache:position(CurHdl, Offset), - ok = file_handle_cache:truncate(CurHdl), - - {ok, GCPid} = rabbit_msg_store_gc:start_link( - #gc_state { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - msg_store = self() - }), - - {ok, maybe_compact( - State1 #msstate { current_file_handle = CurHdl, gc_pid = GCPid }), - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - successfully_recovered_state -> 7; - {new_client_state, _Ref, _MODC, _CloseFDsFun} -> 7; - {read, _Guid} -> 2; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - sync -> 8; - {combine_files, _Source, _Destination, _Reclaimed} -> 8; - {delete_file, _File, _Reclaimed} -> 8; - {set_maximum_since_use, _Age} -> 8; - {client_dying, _Pid} -> 7; - _ -> 0 - end. - -handle_call(successfully_recovered_state, _From, State) -> - reply(State #msstate.successfully_recovered, State); - -handle_call({new_client_state, CRef, MsgOnDiskFun, CloseFDsFun}, _From, - State = #msstate { dir = Dir, - index_state = IndexState, - index_module = IndexModule, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - gc_pid = GCPid }) -> - Clients1 = dict:store(CRef, {MsgOnDiskFun, CloseFDsFun}, Clients), - reply({IndexState, IndexModule, Dir, GCPid, - FileHandlesEts, FileSummaryEts, DedupCacheEts, CurFileCacheEts}, - State #msstate { clients = Clients1 }); - -handle_call({client_terminate, CRef}, _From, State) -> - reply(ok, clear_client(CRef, State)); - -handle_call({read, Guid}, From, State) -> - State1 = read_message(Guid, From, State), - noreply(State1); - -handle_call({contains, Guid}, From, State) -> - State1 = contains_message(Guid, From, State), - noreply(State1). - -handle_cast({client_dying, CRef}, - State = #msstate { dying_clients = DyingClients }) -> - DyingClients1 = sets:add_element(CRef, DyingClients), - noreply(write_message(CRef, <<>>, - State #msstate { dying_clients = DyingClients1 })); - -handle_cast({client_delete, CRef}, State = #msstate { clients = Clients }) -> - State1 = State #msstate { clients = dict:erase(CRef, Clients) }, - noreply(remove_message(CRef, CRef, clear_client(CRef, State1))); - -handle_cast({write, CRef, Guid}, - State = #msstate { cur_file_cache_ets = CurFileCacheEts }) -> - true = 0 =< ets:update_counter(CurFileCacheEts, Guid, {3, -1}), - [{Guid, Msg, _CacheRefCount}] = ets:lookup(CurFileCacheEts, Guid), - noreply( - case write_action(should_mask_action(CRef, Guid, State), Guid, State) of - {write, State1} -> - write_message(CRef, Guid, Msg, State1); - {ignore, CurFile, State1 = #msstate { current_file = CurFile }} -> - State1; - {ignore, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {Guid, Msg, 0}), - State1; - {confirm, CurFile, State1 = #msstate { current_file = CurFile }}-> - record_pending_confirm(CRef, Guid, State1); - {confirm, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {Guid, Msg, 0}), - update_pending_confirms( - fun (MsgOnDiskFun, CTG) -> - MsgOnDiskFun(gb_sets:singleton(Guid), written), - CTG - end, CRef, State1) - end); - -handle_cast({remove, CRef, Guids}, State) -> - State1 = lists:foldl( - fun (Guid, State2) -> remove_message(Guid, CRef, State2) end, - State, Guids), - noreply(maybe_compact( - client_confirm(CRef, gb_sets:from_list(Guids), removed, State1))); - -handle_cast({release, Guids}, State = - #msstate { dedup_cache_ets = DedupCacheEts }) -> - lists:foreach( - fun (Guid) -> decrement_cache(DedupCacheEts, Guid) end, Guids), - noreply(State); - -handle_cast({sync, Guids, K}, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - on_sync = Syncs }) -> - {ok, SyncOffset} = file_handle_cache:last_sync_offset(CurHdl), - case lists:any(fun (Guid) -> - #msg_location { file = File, offset = Offset } = - index_lookup(Guid, State), - File =:= CurFile andalso Offset >= SyncOffset - end, Guids) of - false -> K(), - noreply(State); - true -> noreply(State #msstate { on_sync = [K | Syncs] }) - end; - -handle_cast(sync, State) -> - noreply(internal_sync(State)); - -handle_cast({combine_files, Source, Destination, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - ok = cleanup_after_file_deletion(Source, State), - %% see comment in cleanup_after_file_deletion, and client_read3 - true = mark_handle_to_close(Clients, FileHandlesEts, Destination, false), - true = ets:update_element(FileSummaryEts, Destination, - {#file_summary.locked, false}), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([Source, Destination], State1))); - -handle_cast({delete_file, File, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize }) -> - ok = cleanup_after_file_deletion(File, State), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([File], State1))); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State). - -handle_info(timeout, State) -> - noreply(internal_sync(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}. - -terminate(_Reason, State = #msstate { index_state = IndexState, - index_module = IndexModule, - current_file_handle = CurHdl, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - dir = Dir }) -> - %% stop the gc first, otherwise it could be working and we pull - %% out the ets tables from under it. - ok = rabbit_msg_store_gc:stop(GCPid), - State1 = case CurHdl of - undefined -> State; - _ -> State2 = internal_sync(State), - file_handle_cache:close(CurHdl), - State2 - end, - State3 = close_all_handles(State1), - store_file_summary(FileSummaryEts, Dir), - [ets:delete(T) || - T <- [FileSummaryEts, DedupCacheEts, FileHandlesEts, CurFileCacheEts]], - IndexModule:terminate(IndexState), - store_recovery_terms([{client_refs, dict:fetch_keys(Clients)}, - {index_module, IndexModule}], Dir), - State3 #msstate { index_state = undefined, - current_file_handle = undefined }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% general helper functions -%%---------------------------------------------------------------------------- - -noreply(State) -> - {State1, Timeout} = next_state(State), - {noreply, State1, Timeout}. - -reply(Reply, State) -> - {State1, Timeout} = next_state(State), - {reply, Reply, State1, Timeout}. - -next_state(State = #msstate { sync_timer_ref = undefined, - on_sync = Syncs, - cref_to_guids = CTG }) -> - case {Syncs, dict:size(CTG)} of - {[], 0} -> {State, hibernate}; - _ -> {start_sync_timer(State), 0} - end; -next_state(State = #msstate { on_sync = Syncs, - cref_to_guids = CTG }) -> - case {Syncs, dict:size(CTG)} of - {[], 0} -> {stop_sync_timer(State), hibernate}; - _ -> {State, 0} - end. - -start_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, sync, [self()]), - State #msstate { sync_timer_ref = TRef }. - -stop_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - State; -stop_sync_timer(State = #msstate { sync_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #msstate { sync_timer_ref = undefined }. - -internal_sync(State = #msstate { current_file_handle = CurHdl, - on_sync = Syncs, - cref_to_guids = CTG }) -> - State1 = stop_sync_timer(State), - CGs = dict:fold(fun (CRef, Guids, NS) -> - case gb_sets:is_empty(Guids) of - true -> NS; - false -> [{CRef, Guids} | NS] - end - end, [], CTG), - case {Syncs, CGs} of - {[], []} -> ok; - _ -> file_handle_cache:sync(CurHdl) - end, - [K() || K <- lists:reverse(Syncs)], - [client_confirm(CRef, Guids, written, State1) || {CRef, Guids} <- CGs], - State1 #msstate { cref_to_guids = dict:new(), on_sync = [] }. - -write_action({true, not_found}, _Guid, State) -> - {ignore, undefined, State}; -write_action({true, #msg_location { file = File }}, _Guid, State) -> - {ignore, File, State}; -write_action({false, not_found}, _Guid, State) -> - {write, State}; -write_action({Mask, #msg_location { ref_count = 0, file = File, - total_size = TotalSize }}, - Guid, State = #msstate { file_summary_ets = FileSummaryEts }) -> - case {Mask, ets:lookup(FileSummaryEts, File)} of - {false, [#file_summary { locked = true }]} -> - ok = index_delete(Guid, State), - {write, State}; - {false_if_increment, [#file_summary { locked = true }]} -> - %% The msg for Guid is older than the client death - %% message, but as it is being GC'd currently we'll have - %% to write a new copy, which will then be younger, so - %% ignore this write. - {ignore, File, State}; - {_Mask, [#file_summary {}]} -> - ok = index_update_ref_count(Guid, 1, State), - State1 = adjust_valid_total_size(File, TotalSize, State), - {confirm, File, State1} - end; -write_action({_Mask, #msg_location { ref_count = RefCount, file = File }}, - Guid, State) -> - ok = index_update_ref_count(Guid, RefCount + 1, State), - %% We already know about it, just update counter. Only update - %% field otherwise bad interaction with concurrent GC - {confirm, File, State}. - -write_message(CRef, Guid, Msg, State) -> - write_message(Guid, Msg, record_pending_confirm(CRef, Guid, State)). - -write_message(Guid, Msg, - State = #msstate { current_file_handle = CurHdl, - current_file = CurFile, - sum_valid_data = SumValid, - sum_file_size = SumFileSize, - file_summary_ets = FileSummaryEts }) -> - {ok, CurOffset} = file_handle_cache:current_virtual_offset(CurHdl), - {ok, TotalSize} = rabbit_msg_file:append(CurHdl, Guid, Msg), - ok = index_insert( - #msg_location { guid = Guid, ref_count = 1, file = CurFile, - offset = CurOffset, total_size = TotalSize }, State), - [#file_summary { right = undefined, locked = false }] = - ets:lookup(FileSummaryEts, CurFile), - [_,_] = ets:update_counter(FileSummaryEts, CurFile, - [{#file_summary.valid_total_size, TotalSize}, - {#file_summary.file_size, TotalSize}]), - maybe_roll_to_new_file(CurOffset + TotalSize, - State #msstate { - sum_valid_data = SumValid + TotalSize, - sum_file_size = SumFileSize + TotalSize }). - -read_message(Guid, From, - State = #msstate { dedup_cache_ets = DedupCacheEts }) -> - case index_lookup_positive_ref_count(Guid, State) of - not_found -> - gen_server2:reply(From, not_found), - State; - MsgLocation -> - case fetch_and_increment_cache(DedupCacheEts, Guid) of - not_found -> read_message1(From, MsgLocation, State); - Msg -> gen_server2:reply(From, {ok, Msg}), - State - end - end. - -read_message1(From, #msg_location { guid = Guid, ref_count = RefCount, - file = File, offset = Offset } = MsgLoc, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts }) -> - case File =:= CurFile of - true -> {Msg, State1} = - %% can return [] if msg in file existed on startup - case ets:lookup(CurFileCacheEts, Guid) of - [] -> - {ok, RawOffSet} = - file_handle_cache:current_raw_offset(CurHdl), - ok = case Offset >= RawOffSet of - true -> file_handle_cache:flush(CurHdl); - false -> ok - end, - read_from_disk(MsgLoc, State, DedupCacheEts); - [{Guid, Msg1, _CacheRefCount}] -> - ok = maybe_insert_into_cache( - DedupCacheEts, RefCount, Guid, Msg1), - {Msg1, State} - end, - gen_server2:reply(From, {ok, Msg}), - State1; - false -> [#file_summary { locked = Locked }] = - ets:lookup(FileSummaryEts, File), - case Locked of - true -> add_to_pending_gc_completion({read, Guid, From}, - File, State); - false -> {Msg, State1} = - read_from_disk(MsgLoc, State, DedupCacheEts), - gen_server2:reply(From, {ok, Msg}), - State1 - end - end. - -read_from_disk(#msg_location { guid = Guid, ref_count = RefCount, - file = File, offset = Offset, - total_size = TotalSize }, - State, DedupCacheEts) -> - {Hdl, State1} = get_read_handle(File, State), - {ok, Offset} = file_handle_cache:position(Hdl, Offset), - {ok, {Guid, Msg}} = - case rabbit_msg_file:read(Hdl, TotalSize) of - {ok, {Guid, _}} = Obj -> - Obj; - Rest -> - {error, {misread, [{old_state, State}, - {file_num, File}, - {offset, Offset}, - {guid, Guid}, - {read, Rest}, - {proc_dict, get()} - ]}} - end, - ok = maybe_insert_into_cache(DedupCacheEts, RefCount, Guid, Msg), - {Msg, State1}. - -contains_message(Guid, From, - State = #msstate { pending_gc_completion = Pending }) -> - case index_lookup_positive_ref_count(Guid, State) of - not_found -> - gen_server2:reply(From, false), - State; - #msg_location { file = File } -> - case orddict:is_key(File, Pending) of - true -> add_to_pending_gc_completion( - {contains, Guid, From}, File, State); - false -> gen_server2:reply(From, true), - State - end - end. - -remove_message(Guid, CRef, - State = #msstate { file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts }) -> - case should_mask_action(CRef, Guid, State) of - {true, _Location} -> - State; - {false_if_increment, #msg_location { ref_count = 0 }} -> - %% CRef has tried to both write and remove this msg - %% whilst it's being GC'd. ASSERTION: - %% [#file_summary { locked = true }] = - %% ets:lookup(FileSummaryEts, File), - State; - {_Mask, #msg_location { ref_count = RefCount, file = File, - total_size = TotalSize }} when RefCount > 0 -> - %% only update field, otherwise bad interaction with - %% concurrent GC - Dec = - fun () -> index_update_ref_count(Guid, RefCount - 1, State) end, - case RefCount of - %% don't remove from CUR_FILE_CACHE_ETS_NAME here - %% because there may be further writes in the mailbox - %% for the same msg. - 1 -> ok = remove_cache_entry(DedupCacheEts, Guid), - case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - add_to_pending_gc_completion( - {remove, Guid, CRef}, File, State); - [#file_summary {}] -> - ok = Dec(), - delete_file_if_empty( - File, adjust_valid_total_size(File, -TotalSize, - State)) - end; - _ -> ok = decrement_cache(DedupCacheEts, Guid), - ok = Dec(), - State - end - end. - -add_to_pending_gc_completion( - Op, File, State = #msstate { pending_gc_completion = Pending }) -> - State #msstate { pending_gc_completion = - rabbit_misc:orddict_cons(File, Op, Pending) }. - -run_pending(Files, State) -> - lists:foldl( - fun (File, State1 = #msstate { pending_gc_completion = Pending }) -> - Pending1 = orddict:erase(File, Pending), - lists:foldl( - fun run_pending_action/2, - State1 #msstate { pending_gc_completion = Pending1 }, - lists:reverse(orddict:fetch(File, Pending))) - end, State, Files). - -run_pending_action({read, Guid, From}, State) -> - read_message(Guid, From, State); -run_pending_action({contains, Guid, From}, State) -> - contains_message(Guid, From, State); -run_pending_action({remove, Guid, CRef}, State) -> - remove_message(Guid, CRef, State). - -safe_ets_update_counter(Tab, Key, UpdateOp, SuccessFun, FailThunk) -> - try - SuccessFun(ets:update_counter(Tab, Key, UpdateOp)) - catch error:badarg -> FailThunk() - end. - -safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> - safe_ets_update_counter(Tab, Key, UpdateOp, fun (_) -> ok end, FailThunk). - -adjust_valid_total_size(File, Delta, State = #msstate { - sum_valid_data = SumValid, - file_summary_ets = FileSummaryEts }) -> - [_] = ets:update_counter(FileSummaryEts, File, - [{#file_summary.valid_total_size, Delta}]), - State #msstate { sum_valid_data = SumValid + Delta }. - -orddict_store(Key, Val, Dict) -> - false = orddict:is_key(Key, Dict), - orddict:store(Key, Val, Dict). - -update_pending_confirms(Fun, CRef, State = #msstate { clients = Clients, - cref_to_guids = CTG }) -> - case dict:fetch(CRef, Clients) of - {undefined, _CloseFDsFun} -> State; - {MsgOnDiskFun, _CloseFDsFun} -> CTG1 = Fun(MsgOnDiskFun, CTG), - State #msstate { cref_to_guids = CTG1 } - end. - -record_pending_confirm(CRef, Guid, State) -> - update_pending_confirms( - fun (_MsgOnDiskFun, CTG) -> - dict:update(CRef, fun (Guids) -> gb_sets:add(Guid, Guids) end, - gb_sets:singleton(Guid), CTG) - end, CRef, State). - -client_confirm(CRef, Guids, ActionTaken, State) -> - update_pending_confirms( - fun (MsgOnDiskFun, CTG) -> - MsgOnDiskFun(Guids, ActionTaken), - case dict:find(CRef, CTG) of - {ok, Gs} -> Guids1 = gb_sets:difference(Gs, Guids), - case gb_sets:is_empty(Guids1) of - true -> dict:erase(CRef, CTG); - false -> dict:store(CRef, Guids1, CTG) - end; - error -> CTG - end - end, CRef, State). - -%% Detect whether the Guid is older or younger than the client's death -%% msg (if there is one). If the msg is older than the client death -%% msg, and it has a 0 ref_count we must only alter the ref_count, not -%% rewrite the msg - rewriting it would make it younger than the death -%% msg and thus should be ignored. Note that this (correctly) returns -%% false when testing to remove the death msg itself. -should_mask_action(CRef, Guid, - State = #msstate { dying_clients = DyingClients }) -> - case {sets:is_element(CRef, DyingClients), index_lookup(Guid, State)} of - {false, Location} -> - {false, Location}; - {true, not_found} -> - {true, not_found}; - {true, #msg_location { file = File, offset = Offset, - ref_count = RefCount } = Location} -> - #msg_location { file = DeathFile, offset = DeathOffset } = - index_lookup(CRef, State), - {case {{DeathFile, DeathOffset} < {File, Offset}, RefCount} of - {true, _} -> true; - {false, 0} -> false_if_increment; - {false, _} -> false - end, Location} - end. - -%%---------------------------------------------------------------------------- -%% file helper functions -%%---------------------------------------------------------------------------- - -open_file(Dir, FileName, Mode) -> - file_handle_cache:open(form_filename(Dir, FileName), ?BINARY_MODE ++ Mode, - [{write_buffer, ?HANDLE_CACHE_BUFFER_SIZE}]). - -close_handle(Key, CState = #client_msstate { file_handle_cache = FHC }) -> - CState #client_msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, State = #msstate { file_handle_cache = FHC }) -> - State #msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, FHC) -> - case dict:find(Key, FHC) of - {ok, Hdl} -> ok = file_handle_cache:close(Hdl), - dict:erase(Key, FHC); - error -> FHC - end. - -mark_handle_open(FileHandlesEts, File, Ref) -> - %% This is fine to fail (already exists). Note it could fail with - %% the value being close, and not have it updated to open. - ets:insert_new(FileHandlesEts, {{Ref, File}, open}), - true. - -%% See comment in client_read3 - only call this when the file is locked -mark_handle_to_close(ClientRefs, FileHandlesEts, File, Invoke) -> - [ begin - case (ets:update_element(FileHandlesEts, Key, {2, close}) - andalso Invoke) of - true -> case dict:fetch(Ref, ClientRefs) of - {_MsgOnDiskFun, undefined} -> ok; - {_MsgOnDiskFun, CloseFDsFun} -> ok = CloseFDsFun() - end; - false -> ok - end - end || {{Ref, _File} = Key, open} <- - ets:match_object(FileHandlesEts, {{'_', File}, open}) ], - true. - -safe_file_delete_fun(File, Dir, FileHandlesEts) -> - fun () -> safe_file_delete(File, Dir, FileHandlesEts) end. - -safe_file_delete(File, Dir, FileHandlesEts) -> - %% do not match on any value - it's the absence of the row that - %% indicates the client has really closed the file. - case ets:match_object(FileHandlesEts, {{'_', File}, '_'}, 1) of - {[_|_], _Cont} -> false; - _ -> ok = file:delete( - form_filename(Dir, filenum_to_name(File))), - true - end. - -close_all_indicated(#client_msstate { file_handles_ets = FileHandlesEts, - client_ref = Ref } = - CState) -> - Objs = ets:match_object(FileHandlesEts, {{Ref, '_'}, close}), - {ok, lists:foldl(fun ({Key = {_Ref, File}, close}, CStateM) -> - true = ets:delete(FileHandlesEts, Key), - close_handle(File, CStateM) - end, CState, Objs)}. - -close_all_handles(CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_handle_cache = FHC, - client_ref = Ref }) -> - ok = dict:fold(fun (File, Hdl, ok) -> - true = ets:delete(FileHandlesEts, {Ref, File}), - file_handle_cache:close(Hdl) - end, ok, FHC), - CState #client_msstate { file_handle_cache = dict:new() }; - -close_all_handles(State = #msstate { file_handle_cache = FHC }) -> - ok = dict:fold(fun (_Key, Hdl, ok) -> file_handle_cache:close(Hdl) end, - ok, FHC), - State #msstate { file_handle_cache = dict:new() }. - -get_read_handle(FileNum, CState = #client_msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, CState #client_msstate { file_handle_cache = FHC2 }}; - -get_read_handle(FileNum, State = #msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, State #msstate { file_handle_cache = FHC2 }}. - -get_read_handle(FileNum, FHC, Dir) -> - case dict:find(FileNum, FHC) of - {ok, Hdl} -> {Hdl, FHC}; - error -> {ok, Hdl} = open_file(Dir, filenum_to_name(FileNum), - ?READ_MODE), - {Hdl, dict:store(FileNum, Hdl, FHC)} - end. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file_handle_cache:position(Hdl, FileSizeLimit), - ok = file_handle_cache:truncate(Hdl), - {ok, FinalPos} = file_handle_cache:position(Hdl, FinalPos), - ok. - -truncate_and_extend_file(Hdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file_handle_cache:position(Hdl, Lowpoint), - ok = file_handle_cache:truncate(Hdl), - ok = preallocate(Hdl, Highpoint, Lowpoint). - -form_filename(Dir, Name) -> filename:join(Dir, Name). - -filenum_to_name(File) -> integer_to_list(File) ++ ?FILE_EXTENSION. - -filename_to_num(FileName) -> list_to_integer(filename:rootname(FileName)). - -list_sorted_file_names(Dir, Ext) -> - lists:sort(fun (A, B) -> filename_to_num(A) < filename_to_num(B) end, - filelib:wildcard("*" ++ Ext, Dir)). - -%%---------------------------------------------------------------------------- -%% message cache helper functions -%%---------------------------------------------------------------------------- - -maybe_insert_into_cache(DedupCacheEts, RefCount, Guid, Msg) - when RefCount > 1 -> - update_msg_cache(DedupCacheEts, Guid, Msg); -maybe_insert_into_cache(_DedupCacheEts, _RefCount, _Guid, _Msg) -> - ok. - -update_msg_cache(CacheEts, Guid, Msg) -> - case ets:insert_new(CacheEts, {Guid, Msg, 1}) of - true -> ok; - false -> safe_ets_update_counter_ok( - CacheEts, Guid, {3, +1}, - fun () -> update_msg_cache(CacheEts, Guid, Msg) end) - end. - -remove_cache_entry(DedupCacheEts, Guid) -> - true = ets:delete(DedupCacheEts, Guid), - ok. - -fetch_and_increment_cache(DedupCacheEts, Guid) -> - case ets:lookup(DedupCacheEts, Guid) of - [] -> - not_found; - [{_Guid, Msg, _RefCount}] -> - safe_ets_update_counter_ok( - DedupCacheEts, Guid, {3, +1}, - %% someone has deleted us in the meantime, insert us - fun () -> ok = update_msg_cache(DedupCacheEts, Guid, Msg) end), - Msg - end. - -decrement_cache(DedupCacheEts, Guid) -> - true = safe_ets_update_counter( - DedupCacheEts, Guid, {3, -1}, - fun (N) when N =< 0 -> true = ets:delete(DedupCacheEts, Guid); - (_N) -> true - end, - %% Guid is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message held in RAM) - fun () -> true end), - ok. - -%%---------------------------------------------------------------------------- -%% index -%%---------------------------------------------------------------------------- - -index_lookup_positive_ref_count(Key, State) -> - case index_lookup(Key, State) of - not_found -> not_found; - #msg_location { ref_count = 0 } -> not_found; - #msg_location {} = MsgLocation -> MsgLocation - end. - -index_update_ref_count(Key, RefCount, State) -> - index_update_fields(Key, {#msg_location.ref_count, RefCount}, State). - -index_lookup(Key, #client_msstate { index_module = Index, - index_state = State }) -> - Index:lookup(Key, State); - -index_lookup(Key, #msstate { index_module = Index, index_state = State }) -> - Index:lookup(Key, State). - -index_insert(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:insert(Obj, State). - -index_update(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:update(Obj, State). - -index_update_fields(Key, Updates, #msstate { index_module = Index, - index_state = State }) -> - Index:update_fields(Key, Updates, State). - -index_delete(Key, #msstate { index_module = Index, index_state = State }) -> - Index:delete(Key, State). - -index_delete_by_file(File, #msstate { index_module = Index, - index_state = State }) -> - Index:delete_by_file(File, State). - -%%---------------------------------------------------------------------------- -%% shutdown and recovery -%%---------------------------------------------------------------------------- - -recover_index_and_client_refs(IndexModule, _Recover, undefined, Dir, _Server) -> - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, false, _ClientRefs, Dir, Server) -> - rabbit_log:warning("~w: rebuilding indices from scratch~n", [Server]), - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, true, ClientRefs, Dir, Server) -> - Fresh = fun (ErrorMsg, ErrorArgs) -> - rabbit_log:warning("~w: " ++ ErrorMsg ++ "~n" - "rebuilding indices from scratch~n", - [Server | ErrorArgs]), - {false, IndexModule:new(Dir), []} - end, - case read_recovery_terms(Dir) of - {false, Error} -> - Fresh("failed to read recovery terms: ~p", [Error]); - {true, Terms} -> - RecClientRefs = proplists:get_value(client_refs, Terms, []), - RecIndexModule = proplists:get_value(index_module, Terms), - case (lists:sort(ClientRefs) =:= lists:sort(RecClientRefs) - andalso IndexModule =:= RecIndexModule) of - true -> case IndexModule:recover(Dir) of - {ok, IndexState1} -> - {true, IndexState1, ClientRefs}; - {error, Error} -> - Fresh("failed to recover index: ~p", [Error]) - end; - false -> Fresh("recovery terms differ from present", []) - end - end. - -store_recovery_terms(Terms, Dir) -> - rabbit_misc:write_term_file(filename:join(Dir, ?CLEAN_FILENAME), Terms). - -read_recovery_terms(Dir) -> - Path = filename:join(Dir, ?CLEAN_FILENAME), - case rabbit_misc:read_term_file(Path) of - {ok, Terms} -> case file:delete(Path) of - ok -> {true, Terms}; - {error, Error} -> {false, Error} - end; - {error, Error} -> {false, Error} - end. - -store_file_summary(Tid, Dir) -> - ok = ets:tab2file(Tid, filename:join(Dir, ?FILE_SUMMARY_FILENAME), - [{extended_info, [object_count]}]). - -recover_file_summary(false, _Dir) -> - %% TODO: the only reason for this to be an *ordered*_set is so - %% that a) maybe_compact can start a traversal from the eldest - %% file, and b) build_index in fast recovery mode can easily - %% identify the current file. It's awkward to have both that - %% odering and the left/right pointers in the entries - replacing - %% the former with some additional bit of state would be easy, but - %% ditching the latter would be neater. - {false, ets:new(rabbit_msg_store_file_summary, - [ordered_set, public, {keypos, #file_summary.file}])}; -recover_file_summary(true, Dir) -> - Path = filename:join(Dir, ?FILE_SUMMARY_FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> file:delete(Path), - {true, Tid}; - {error, _Error} -> recover_file_summary(false, Dir) - end. - -count_msg_refs(Gen, Seed, State) -> - case Gen(Seed) of - finished -> - ok; - {_Guid, 0, Next} -> - count_msg_refs(Gen, Next, State); - {Guid, Delta, Next} -> - ok = case index_lookup(Guid, State) of - not_found -> - index_insert(#msg_location { guid = Guid, - file = undefined, - ref_count = Delta }, - State); - #msg_location { ref_count = RefCount } = StoreEntry -> - NewRefCount = RefCount + Delta, - case NewRefCount of - 0 -> index_delete(Guid, State); - _ -> index_update(StoreEntry #msg_location { - ref_count = NewRefCount }, - State) - end - end, - count_msg_refs(Gen, Next, State) - end. - -recover_crashed_compactions(Dir) -> - FileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION), - TmpFileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION_TMP), - lists:foreach( - fun (TmpFileName) -> - NonTmpRelatedFileName = - filename:rootname(TmpFileName) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFileName, FileNames), - ok = recover_crashed_compaction( - Dir, TmpFileName, NonTmpRelatedFileName) - end, TmpFileNames), - TmpFileNames == []. - -recover_crashed_compaction(Dir, TmpFileName, NonTmpRelatedFileName) -> - %% Because a msg can legitimately appear multiple times in the - %% same file, identifying the contents of the tmp file and where - %% they came from is non-trivial. If we are recovering a crashed - %% compaction then we will be rebuilding the index, which can cope - %% with duplicates appearing. Thus the simplest and safest thing - %% to do is to append the contents of the tmp file to its main - %% file. - {ok, TmpHdl} = open_file(Dir, TmpFileName, ?READ_MODE), - {ok, MainHdl} = open_file(Dir, NonTmpRelatedFileName, - ?READ_MODE ++ ?WRITE_MODE), - {ok, _End} = file_handle_cache:position(MainHdl, eof), - Size = filelib:file_size(form_filename(Dir, TmpFileName)), - {ok, Size} = file_handle_cache:copy(TmpHdl, MainHdl, Size), - ok = file_handle_cache:close(MainHdl), - ok = file_handle_cache:delete(TmpHdl), - ok. - -scan_file_for_valid_messages(Dir, FileName) -> - case open_file(Dir, FileName, ?READ_MODE) of - {ok, Hdl} -> Valid = rabbit_msg_file:scan( - Hdl, filelib:file_size( - form_filename(Dir, FileName))), - %% if something really bad has happened, - %% the close could fail, but ignore - file_handle_cache:close(Hdl), - Valid; - {error, enoent} -> {ok, [], 0}; - {error, Reason} -> {error, {unable_to_scan_file, FileName, Reason}} - end. - -%% Takes the list in *ascending* order (i.e. eldest message -%% first). This is the opposite of what scan_file_for_valid_messages -%% produces. The list of msgs that is produced is youngest first. -drop_contiguous_block_prefix(L) -> drop_contiguous_block_prefix(L, 0). - -drop_contiguous_block_prefix([], ExpectedOffset) -> - {ExpectedOffset, []}; -drop_contiguous_block_prefix([#msg_location { offset = ExpectedOffset, - total_size = TotalSize } | Tail], - ExpectedOffset) -> - ExpectedOffset1 = ExpectedOffset + TotalSize, - drop_contiguous_block_prefix(Tail, ExpectedOffset1); -drop_contiguous_block_prefix(MsgsAfterGap, ExpectedOffset) -> - {ExpectedOffset, MsgsAfterGap}. - -build_index(true, _StartupFunState, - State = #msstate { file_summary_ets = FileSummaryEts }) -> - ets:foldl( - fun (#file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize, - file = File }, - {_Offset, State1 = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize }}) -> - {FileSize, State1 #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize, - current_file = File }} - end, {0, State}, FileSummaryEts); -build_index(false, {MsgRefDeltaGen, MsgRefDeltaGenInit}, - State = #msstate { dir = Dir }) -> - ok = count_msg_refs(MsgRefDeltaGen, MsgRefDeltaGenInit, State), - {ok, Pid} = gatherer:start_link(), - case [filename_to_num(FileName) || - FileName <- list_sorted_file_names(Dir, ?FILE_EXTENSION)] of - [] -> build_index(Pid, undefined, [State #msstate.current_file], - State); - Files -> {Offset, State1} = build_index(Pid, undefined, Files, State), - {Offset, lists:foldl(fun delete_file_if_empty/2, - State1, Files)} - end. - -build_index(Gatherer, Left, [], - State = #msstate { file_summary_ets = FileSummaryEts, - sum_valid_data = SumValid, - sum_file_size = SumFileSize }) -> - case gatherer:out(Gatherer) of - empty -> - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer), - ok = index_delete_by_file(undefined, State), - Offset = case ets:lookup(FileSummaryEts, Left) of - [] -> 0; - [#file_summary { file_size = FileSize }] -> FileSize - end, - {Offset, State #msstate { current_file = Left }}; - {value, #file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize } = FileSummary} -> - true = ets:insert_new(FileSummaryEts, FileSummary), - build_index(Gatherer, Left, [], - State #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize }) - end; -build_index(Gatherer, Left, [File|Files], State) -> - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> build_index_worker(Gatherer, State, - Left, File, Files) - end), - build_index(Gatherer, File, Files, State). - -build_index_worker(Gatherer, State = #msstate { dir = Dir }, - Left, File, Files) -> - {ok, Messages, FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - {ValidMessages, ValidTotalSize} = - lists:foldl( - fun (Obj = {Guid, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case index_lookup(Guid, State) of - #msg_location { file = undefined } = StoreEntry -> - ok = index_update(StoreEntry #msg_location { - file = File, offset = Offset, - total_size = TotalSize }, - State), - {[Obj | VMAcc], VTSAcc + TotalSize}; - _ -> - {VMAcc, VTSAcc} - end - end, {[], 0}, Messages), - {Right, FileSize1} = - case Files of - %% if it's the last file, we'll truncate to remove any - %% rubbish above the last valid message. This affects the - %% file size. - [] -> {undefined, case ValidMessages of - [] -> 0; - _ -> {_Guid, TotalSize, Offset} = - lists:last(ValidMessages), - Offset + TotalSize - end}; - [F|_] -> {F, FileSize} - end, - ok = gatherer:in(Gatherer, #file_summary { - file = File, - valid_total_size = ValidTotalSize, - left = Left, - right = Right, - file_size = FileSize1, - locked = false, - readers = 0 }), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- internal -%%---------------------------------------------------------------------------- - -maybe_roll_to_new_file( - Offset, - State = #msstate { dir = Dir, - current_file_handle = CurHdl, - current_file = CurFile, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - file_size_limit = FileSizeLimit }) - when Offset >= FileSizeLimit -> - State1 = internal_sync(State), - ok = file_handle_cache:close(CurHdl), - NextFile = CurFile + 1, - {ok, NextHdl} = open_file(Dir, filenum_to_name(NextFile), ?WRITE_MODE), - true = ets:insert_new(FileSummaryEts, #file_summary { - file = NextFile, - valid_total_size = 0, - left = CurFile, - right = undefined, - file_size = 0, - locked = false, - readers = 0 }), - true = ets:update_element(FileSummaryEts, CurFile, - {#file_summary.right, NextFile}), - true = ets:match_delete(CurFileCacheEts, {'_', '_', 0}), - maybe_compact(State1 #msstate { current_file_handle = NextHdl, - current_file = NextFile }); -maybe_roll_to_new_file(_, State) -> - State. - -maybe_compact(State = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize, - gc_pid = GCPid, - pending_gc_completion = Pending, - file_summary_ets = FileSummaryEts, - file_size_limit = FileSizeLimit }) - when (SumFileSize > 2 * FileSizeLimit andalso - (SumFileSize - SumValid) / SumFileSize > ?GARBAGE_FRACTION) -> - %% TODO: the algorithm here is sub-optimal - it may result in a - %% complete traversal of FileSummaryEts. - case ets:first(FileSummaryEts) of - '$end_of_table' -> - State; - First -> - case find_files_to_combine(FileSummaryEts, FileSizeLimit, - ets:lookup(FileSummaryEts, First)) of - not_found -> - State; - {Src, Dst} -> - Pending1 = orddict_store(Dst, [], - orddict_store(Src, [], Pending)), - State1 = close_handle(Src, close_handle(Dst, State)), - true = ets:update_element(FileSummaryEts, Src, - {#file_summary.locked, true}), - true = ets:update_element(FileSummaryEts, Dst, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:combine(GCPid, Src, Dst), - State1 #msstate { pending_gc_completion = Pending1 } - end - end; -maybe_compact(State) -> - State. - -find_files_to_combine(FileSummaryEts, FileSizeLimit, - [#file_summary { file = Dst, - valid_total_size = DstValid, - right = Src, - locked = DstLocked }]) -> - case Src of - undefined -> - not_found; - _ -> - [#file_summary { file = Src, - valid_total_size = SrcValid, - left = Dst, - right = SrcRight, - locked = SrcLocked }] = Next = - ets:lookup(FileSummaryEts, Src), - case SrcRight of - undefined -> not_found; - _ -> case (DstValid + SrcValid =< FileSizeLimit) andalso - (DstValid > 0) andalso (SrcValid > 0) andalso - not (DstLocked orelse SrcLocked) of - true -> {Src, Dst}; - false -> find_files_to_combine( - FileSummaryEts, FileSizeLimit, Next) - end - end - end. - -delete_file_if_empty(File, State = #msstate { current_file = File }) -> - State; -delete_file_if_empty(File, State = #msstate { - gc_pid = GCPid, - file_summary_ets = FileSummaryEts, - pending_gc_completion = Pending }) -> - [#file_summary { valid_total_size = ValidData, - locked = false }] = - ets:lookup(FileSummaryEts, File), - case ValidData of - 0 -> %% don't delete the file_summary_ets entry for File here - %% because we could have readers which need to be able to - %% decrement the readers count. - true = ets:update_element(FileSummaryEts, File, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:delete(GCPid, File), - Pending1 = orddict_store(File, [], Pending), - close_handle(File, - State #msstate { pending_gc_completion = Pending1 }); - _ -> State - end. - -cleanup_after_file_deletion(File, - #msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - %% Ensure that any clients that have open fhs to the file close - %% them before using them again. This has to be done here (given - %% it's done in the msg_store, and not the gc), and not when - %% starting up the GC, because if done when starting up the GC, - %% the client could find the close, and close and reopen the fh, - %% whilst the GC is waiting for readers to disappear, before it's - %% actually done the GC. - true = mark_handle_to_close(Clients, FileHandlesEts, File, true), - [#file_summary { left = Left, - right = Right, - locked = true, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - %% We'll never delete the current file, so right is never undefined - true = Right =/= undefined, %% ASSERTION - true = ets:update_element(FileSummaryEts, Right, - {#file_summary.left, Left}), - %% ensure the double linked list is maintained - true = case Left of - undefined -> true; %% File is the eldest file (left-most) - _ -> ets:update_element(FileSummaryEts, Left, - {#file_summary.right, Right}) - end, - true = ets:delete(FileSummaryEts, File), - ok. - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- external -%%---------------------------------------------------------------------------- - -has_readers(File, #gc_state { file_summary_ets = FileSummaryEts }) -> - [#file_summary { locked = true, readers = Count }] = - ets:lookup(FileSummaryEts, File), - Count /= 0. - -combine_files(Source, Destination, - State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { - readers = 0, - left = Destination, - valid_total_size = SourceValid, - file_size = SourceFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Source), - [#file_summary { - readers = 0, - right = Source, - valid_total_size = DestinationValid, - file_size = DestinationFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Destination), - - SourceName = filenum_to_name(Source), - DestinationName = filenum_to_name(Destination), - {ok, SourceHdl} = open_file(Dir, SourceName, - ?READ_AHEAD_MODE), - {ok, DestinationHdl} = open_file(Dir, DestinationName, - ?READ_AHEAD_MODE ++ ?WRITE_MODE), - TotalValidData = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - {DestinationWorkList, DestinationValid} = - load_and_vacuum_message_file(Destination, State), - {DestinationContiguousTop, DestinationWorkListTail} = - drop_contiguous_block_prefix(DestinationWorkList), - case DestinationWorkListTail of - [] -> ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData); - _ -> Tmp = filename:rootname(DestinationName) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = open_file(Dir, Tmp, ?READ_AHEAD_MODE++?WRITE_MODE), - ok = copy_messages( - DestinationWorkListTail, DestinationContiguousTop, - DestinationValid, DestinationHdl, TmpHdl, Destination, - State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage - %% from Destination, and index_state has been updated to - %% reflect the compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file_handle_cache:position(TmpHdl, 0), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData), - {ok, TmpSize} = - file_handle_cache:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file_handle_cache:sync(DestinationHdl), - ok = file_handle_cache:delete(TmpHdl) - end, - {SourceWorkList, SourceValid} = load_and_vacuum_message_file(Source, State), - ok = copy_messages(SourceWorkList, DestinationValid, TotalValidData, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file_handle_cache:close(DestinationHdl), - ok = file_handle_cache:close(SourceHdl), - - %% don't update dest.right, because it could be changing at the - %% same time - true = ets:update_element( - FileSummaryEts, Destination, - [{#file_summary.valid_total_size, TotalValidData}, - {#file_summary.file_size, TotalValidData}]), - - Reclaimed = SourceFileSize + DestinationFileSize - TotalValidData, - gen_server2:cast(Server, {combine_files, Source, Destination, Reclaimed}), - safe_file_delete_fun(Source, Dir, FileHandlesEts). - -delete_file(File, State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { valid_total_size = 0, - locked = true, - file_size = FileSize, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - {[], 0} = load_and_vacuum_message_file(File, State), - gen_server2:cast(Server, {delete_file, File, FileSize}), - safe_file_delete_fun(File, Dir, FileHandlesEts). - -load_and_vacuum_message_file(File, #gc_state { dir = Dir, - index_module = Index, - index_state = IndexState }) -> - %% Messages here will be end-of-file at start-of-list - {ok, Messages, _FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - %% foldl will reverse so will end up with msgs in ascending offset order - lists:foldl( - fun ({Guid, TotalSize, Offset}, Acc = {List, Size}) -> - case Index:lookup(Guid, IndexState) of - #msg_location { file = File, total_size = TotalSize, - offset = Offset, ref_count = 0 } = Entry -> - ok = Index:delete_object(Entry, IndexState), - Acc; - #msg_location { file = File, total_size = TotalSize, - offset = Offset } = Entry -> - {[ Entry | List ], TotalSize + Size}; - _ -> - Acc - end - end, {[], 0}, Messages). - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, #gc_state { index_module = Index, - index_state = IndexState }) -> - Copy = fun ({BlockStart, BlockEnd}) -> - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file_handle_cache:position(SourceHdl, BlockStart), - {ok, BSize} = - file_handle_cache:copy(SourceHdl, DestinationHdl, BSize) - end, - case - lists:foldl( - fun (#msg_location { guid = Guid, offset = Offset, - total_size = TotalSize }, - {CurOffset, Block = {BlockStart, BlockEnd}}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - %% update MsgLocation to reflect change of file and offset - ok = Index:update_fields(Guid, - [{#msg_location.file, Destination}, - {#msg_location.offset, CurOffset}], - IndexState), - {CurOffset + TotalSize, - case BlockEnd of - undefined -> - %% base case, called only for the first list elem - {Offset, Offset + TotalSize}; - Offset -> - %% extend the current block because the - %% next msg follows straight on - {BlockStart, BlockEnd + TotalSize}; - _ -> - %% found a gap, so actually do the work for - %% the previous block - Copy(Block), - {Offset, Offset + TotalSize} - end} - end, {InitOffset, {undefined, undefined}}, WorkList) of - {FinalOffset, Block} -> - case WorkList of - [] -> ok; - _ -> Copy(Block), %% do the last remaining block - ok = file_handle_cache:sync(DestinationHdl) - end; - {FinalOffsetZ, _Block} -> - {gc_error, [{expected, FinalOffset}, - {got, FinalOffsetZ}, - {destination, Destination}]} - end. diff --git a/src/rabbit_msg_store_ets_index.erl b/src/rabbit_msg_store_ets_index.erl deleted file mode 100644 index 077400d6..00000000 --- a/src/rabbit_msg_store_ets_index.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_ets_index). - --behaviour(rabbit_msg_store_index). - --export([new/1, recover/1, - lookup/2, insert/2, update/2, update_fields/3, delete/2, - delete_object/2, delete_by_file/2, terminate/1]). - --define(MSG_LOC_NAME, rabbit_msg_store_ets_index). --define(FILENAME, "msg_store_index.ets"). - --include("rabbit_msg_store_index.hrl"). - --record(state, { table, dir }). - -new(Dir) -> - file:delete(filename:join(Dir, ?FILENAME)), - Tid = ets:new(?MSG_LOC_NAME, [set, public, {keypos, #msg_location.guid}]), - #state { table = Tid, dir = Dir }. - -recover(Dir) -> - Path = filename:join(Dir, ?FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> file:delete(Path), - {ok, #state { table = Tid, dir = Dir }}; - Error -> Error - end. - -lookup(Key, State) -> - case ets:lookup(State #state.table, Key) of - [] -> not_found; - [Entry] -> Entry - end. - -insert(Obj, State) -> - true = ets:insert_new(State #state.table, Obj), - ok. - -update(Obj, State) -> - true = ets:insert(State #state.table, Obj), - ok. - -update_fields(Key, Updates, State) -> - true = ets:update_element(State #state.table, Key, Updates), - ok. - -delete(Key, State) -> - true = ets:delete(State #state.table, Key), - ok. - -delete_object(Obj, State) -> - true = ets:delete_object(State #state.table, Obj), - ok. - -delete_by_file(File, State) -> - MatchHead = #msg_location { file = File, _ = '_' }, - ets:select_delete(State #state.table, [{MatchHead, [], [true]}]), - ok. - -terminate(#state { table = MsgLocations, dir = Dir }) -> - ok = ets:tab2file(MsgLocations, filename:join(Dir, ?FILENAME), - [{extended_info, [object_count]}]), - ets:delete(MsgLocations). diff --git a/src/rabbit_msg_store_gc.erl b/src/rabbit_msg_store_gc.erl deleted file mode 100644 index 77f1f04e..00000000 --- a/src/rabbit_msg_store_gc.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_gc). - --behaviour(gen_server2). - --export([start_link/1, combine/3, delete/2, no_readers/2, stop/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - --record(state, - { pending_no_readers, - on_action, - msg_store_state - }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (rabbit_msg_store:gc_state()) -> - rabbit_types:ok_pid_or_error()). --spec(combine/3 :: (pid(), rabbit_msg_store:file_num(), - rabbit_msg_store:file_num()) -> 'ok'). --spec(delete/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(no_readers/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(stop/1 :: (pid()) -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(MsgStoreState) -> - gen_server2:start_link(?MODULE, [MsgStoreState], - [{timeout, infinity}]). - -combine(Server, Source, Destination) -> - gen_server2:cast(Server, {combine, Source, Destination}). - -delete(Server, File) -> - gen_server2:cast(Server, {delete, File}). - -no_readers(Server, File) -> - gen_server2:cast(Server, {no_readers, File}). - -stop(Server) -> - gen_server2:call(Server, stop, infinity). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- - -init([MsgStoreState]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - {ok, #state { pending_no_readers = dict:new(), - on_action = [], - msg_store_state = MsgStoreState }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}. - -handle_cast({combine, Source, Destination}, State) -> - {noreply, attempt_action(combine, [Source, Destination], State), hibernate}; - -handle_cast({delete, File}, State) -> - {noreply, attempt_action(delete, [File], State), hibernate}; - -handle_cast({no_readers, File}, - State = #state { pending_no_readers = Pending }) -> - {noreply, case dict:find(File, Pending) of - error -> - State; - {ok, {Action, Files}} -> - Pending1 = dict:erase(File, Pending), - attempt_action( - Action, Files, - State #state { pending_no_readers = Pending1 }) - end, hibernate}; - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, State, hibernate}. - -handle_info(Info, State) -> - {stop, {unhandled_info, Info}, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -attempt_action(Action, Files, - State = #state { pending_no_readers = Pending, - on_action = Thunks, - msg_store_state = MsgStoreState }) -> - case [File || File <- Files, - rabbit_msg_store:has_readers(File, MsgStoreState)] of - [] -> State #state { - on_action = lists:filter( - fun (Thunk) -> not Thunk() end, - [do_action(Action, Files, MsgStoreState) | - Thunks]) }; - [File | _] -> Pending1 = dict:store(File, {Action, Files}, Pending), - State #state { pending_no_readers = Pending1 } - end. - -do_action(combine, [Source, Destination], MsgStoreState) -> - rabbit_msg_store:combine_files(Source, Destination, MsgStoreState); -do_action(delete, [File], MsgStoreState) -> - rabbit_msg_store:delete_file(File, MsgStoreState). diff --git a/src/rabbit_msg_store_index.erl b/src/rabbit_msg_store_index.erl deleted file mode 100644 index ef8b7cdf..00000000 --- a/src/rabbit_msg_store_index.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_index). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [{new, 1}, - {recover, 1}, - {lookup, 2}, - {insert, 2}, - {update, 2}, - {update_fields, 3}, - {delete, 2}, - {delete_by_file, 2}, - {terminate, 1}]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_multi.erl b/src/rabbit_multi.erl deleted file mode 100644 index ebd7fe8a..00000000 --- a/src/rabbit_multi.erl +++ /dev/null @@ -1,349 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_multi). --include("rabbit.hrl"). - --export([start/0, stop/0]). - --define(RPC_SLEEP, 500). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(usage/0 :: () -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - RpcTimeout = - case init:get_argument(maxwait) of - {ok,[[N1]]} -> 1000 * list_to_integer(N1); - _ -> ?MAX_WAIT - end, - case init:get_plain_arguments() of - [] -> - usage(); - FullCommand -> - {Command, Args} = parse_args(FullCommand), - case catch action(Command, Args, RpcTimeout) of - ok -> - io:format("done.~n"), - halt(); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error("invalid command '~s'", - [string:join(FullCommand, " ")]), - usage(); - timeout -> - print_error("timeout starting some nodes.", []), - halt(1); - Other -> - print_error("~p", [Other]), - halt(2) - end - end. - -print_error(Format, Args) -> - rabbit_misc:format_stderr("Error: " ++ Format ++ "~n", Args). - -parse_args([Command | Args]) -> - {list_to_atom(Command), Args}. - -stop() -> - ok. - -usage() -> - io:format("~s", [rabbit_multi_usage:usage()]), - halt(1). - -action(start_all, [NodeCount], RpcTimeout) -> - io:format("Starting all nodes...~n", []), - application:load(rabbit), - {_NodeNamePrefix, NodeHost} = NodeName = rabbit_misc:nodeparts( - getenv("RABBITMQ_NODENAME")), - case net_adm:names(NodeHost) of - {error, EpmdReason} -> - throw({cannot_connect_to_epmd, NodeHost, EpmdReason}); - {ok, _} -> - ok - end, - {NodePids, Running} = - case list_to_integer(NodeCount) of - 1 -> {NodePid, Started} = start_node(rabbit_misc:makenode(NodeName), - RpcTimeout), - {[NodePid], Started}; - N -> start_nodes(N, N, [], true, NodeName, - get_node_tcp_listener(), RpcTimeout) - end, - write_pids_file(NodePids), - case Running of - true -> ok; - false -> timeout - end; - -action(status, [], RpcTimeout) -> - io:format("Status of all running nodes...~n", []), - call_all_nodes( - fun ({Node, Pid}) -> - RabbitRunning = - case is_rabbit_running(Node, RpcTimeout) of - false -> not_running; - true -> running - end, - io:format("Node '~p' with Pid ~p: ~p~n", - [Node, Pid, RabbitRunning]) - end); - -action(stop_all, [], RpcTimeout) -> - io:format("Stopping all nodes...~n", []), - call_all_nodes(fun ({Node, Pid}) -> - io:format("Stopping node ~p~n", [Node]), - rpc:call(Node, rabbit, stop_and_halt, []), - case kill_wait(Pid, RpcTimeout, false) of - false -> kill_wait(Pid, RpcTimeout, true); - true -> ok - end, - io:format("OK~n", []) - end), - delete_pids_file(); - -action(rotate_logs, [], RpcTimeout) -> - action(rotate_logs, [""], RpcTimeout); - -action(rotate_logs, [Suffix], RpcTimeout) -> - io:format("Rotating logs for all nodes...~n", []), - BinarySuffix = list_to_binary(Suffix), - call_all_nodes( - fun ({Node, _}) -> - io:format("Rotating logs for node ~p", [Node]), - case rpc:call(Node, rabbit, rotate_logs, - [BinarySuffix], RpcTimeout) of - {badrpc, Error} -> io:format(": ~p.~n", [Error]); - ok -> io:format(": ok.~n", []) - end - end). - -%% PNodePid is the list of PIDs -%% Running is a boolean exhibiting success at some moment -start_nodes(0, _, PNodePid, Running, _, _, _) -> {PNodePid, Running}; - -start_nodes(N, Total, PNodePid, Running, NodeNameBase, Listener, RpcTimeout) -> - {NodePre, NodeSuff} = NodeNameBase, - NodeNumber = Total - N, - NodePre1 = case NodeNumber of - %% For compatibility with running a single node - 0 -> NodePre; - _ -> NodePre ++ "_" ++ integer_to_list(NodeNumber) - end, - Node = rabbit_misc:makenode({NodePre1, NodeSuff}), - os:putenv("RABBITMQ_NODENAME", atom_to_list(Node)), - case Listener of - {NodeIpAddress, NodePortBase} -> - NodePort = NodePortBase + NodeNumber, - os:putenv("RABBITMQ_NODE_PORT", integer_to_list(NodePort)), - os:putenv("RABBITMQ_NODE_IP_ADDRESS", NodeIpAddress); - undefined -> - ok - end, - {NodePid, Started} = start_node(Node, RpcTimeout), - start_nodes(N - 1, Total, [NodePid | PNodePid], - Started and Running, NodeNameBase, Listener, RpcTimeout). - -start_node(Node, RpcTimeout) -> - io:format("Starting node ~s...~n", [Node]), - case rpc:call(Node, os, getpid, []) of - {badrpc, _} -> - Port = run_rabbitmq_server(), - Started = wait_for_rabbit_to_start(Node, RpcTimeout, Port), - Pid = case rpc:call(Node, os, getpid, []) of - {badrpc, _} -> throw(cannot_get_pid); - PidS -> list_to_integer(PidS) - end, - io:format("~s~n", [case Started of - true -> "OK"; - false -> "timeout" - end]), - {{Node, Pid}, Started}; - PidS -> - Pid = list_to_integer(PidS), - throw({node_already_running, Node, Pid}) - end. - -wait_for_rabbit_to_start(_ , RpcTimeout, _) when RpcTimeout < 0 -> - false; -wait_for_rabbit_to_start(Node, RpcTimeout, Port) -> - case is_rabbit_running(Node, RpcTimeout) of - true -> true; - false -> receive - {'EXIT', Port, PosixCode} -> - throw({node_start_failed, PosixCode}) - after ?RPC_SLEEP -> - wait_for_rabbit_to_start( - Node, RpcTimeout - ?RPC_SLEEP, Port) - end - end. - -run_rabbitmq_server() -> - with_os([{unix, fun run_rabbitmq_server_unix/0}, - {win32, fun run_rabbitmq_server_win32/0}]). - -run_rabbitmq_server_unix() -> - CmdLine = getenv("RABBITMQ_SCRIPT_HOME") ++ "/rabbitmq-server -noinput", - erlang:open_port({spawn, CmdLine}, [nouse_stdio]). - -run_rabbitmq_server_win32() -> - Cmd = filename:nativename(os:find_executable("cmd")), - CmdLine = "\"" ++ getenv("RABBITMQ_SCRIPT_HOME") ++ - "\\rabbitmq-server.bat\" -noinput -detached", - erlang:open_port({spawn_executable, Cmd}, - [{arg0, Cmd}, {args, ["/q", "/s", "/c", CmdLine]}, - nouse_stdio]). - -is_rabbit_running(Node, RpcTimeout) -> - case rpc:call(Node, rabbit, status, [], RpcTimeout) of - {badrpc, _} -> false; - Status -> case proplists:get_value(running_applications, Status) of - undefined -> false; - Apps -> lists:keymember(rabbit, 1, Apps) - end - end. - -with_os(Handlers) -> - {OsFamily, _} = os:type(), - case proplists:get_value(OsFamily, Handlers) of - undefined -> throw({unsupported_os, OsFamily}); - Handler -> Handler() - end. - -pids_file() -> getenv("RABBITMQ_PIDS_FILE"). - -write_pids_file(Pids) -> - FileName = pids_file(), - Handle = case file:open(FileName, [write]) of - {ok, Device} -> - Device; - {error, Reason} -> - throw({cannot_create_pids_file, FileName, Reason}) - end, - try - ok = io:write(Handle, Pids), - ok = io:put_chars(Handle, [$.]) - after - case file:close(Handle) of - ok -> ok; - {error, Reason1} -> - throw({cannot_create_pids_file, FileName, Reason1}) - end - end, - ok. - -delete_pids_file() -> - FileName = pids_file(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> throw({cannot_delete_pids_file, FileName, Reason}) - end. - -read_pids_file() -> - FileName = pids_file(), - case file:consult(FileName) of - {ok, [Pids]} -> Pids; - {error, enoent} -> []; - {error, Reason} -> throw({cannot_read_pids_file, FileName, Reason}) - end. - -kill_wait(Pid, TimeLeft, Forceful) when TimeLeft < 0 -> - Cmd = with_os([{unix, fun () -> if Forceful -> "kill -9"; - true -> "kill" - end - end}, - %% Kill forcefully always on Windows, since erl.exe - %% seems to completely ignore non-forceful killing - %% even when everything is working - {win32, fun () -> "taskkill /f /pid" end}]), - os:cmd(Cmd ++ " " ++ integer_to_list(Pid)), - false; % Don't assume what we did just worked! - -% Returns true if the process is dead, false otherwise. -kill_wait(Pid, TimeLeft, Forceful) -> - timer:sleep(?RPC_SLEEP), - io:format(".", []), - is_dead(Pid) orelse kill_wait(Pid, TimeLeft - ?RPC_SLEEP, Forceful). - -% Test using some OS clunkiness since we shouldn't trust -% rpc:call(os, getpid, []) at this point -is_dead(Pid) -> - PidS = integer_to_list(Pid), - with_os([{unix, fun () -> - system("kill -0 " ++ PidS - ++ " >/dev/null 2>&1") /= 0 - end}, - {win32, fun () -> - Res = os:cmd("tasklist /nh /fi \"pid eq " ++ - PidS ++ "\" 2>&1"), - case re:run(Res, "erl\\.exe", [{capture, none}]) of - match -> false; - _ -> true - end - end}]). - -% Like system(3) -system(Cmd) -> - ShCmd = "sh -c '" ++ escape_quotes(Cmd) ++ "'", - Port = erlang:open_port({spawn, ShCmd}, [exit_status,nouse_stdio]), - receive {Port, {exit_status, Status}} -> Status end. - -% Escape the quotes in a shell command so that it can be used in "sh -c 'cmd'" -escape_quotes(Cmd) -> - lists:flatten(lists:map(fun ($') -> "'\\''"; (Ch) -> Ch end, Cmd)). - -call_all_nodes(Func) -> - case read_pids_file() of - [] -> throw(no_nodes_running); - NodePids -> lists:foreach(Func, NodePids) - end. - -getenv(Var) -> - case os:getenv(Var) of - false -> throw({missing_env_var, Var}); - Value -> Value - end. - -get_node_tcp_listener() -> - try - {getenv("RABBITMQ_NODE_IP_ADDRESS"), - list_to_integer(getenv("RABBITMQ_NODE_PORT"))} - catch _ -> - case application:get_env(rabbit, tcp_listeners) of - {ok, [{_IpAddy, _Port} = Listener]} -> - Listener; - {ok, [Port]} when is_number(Port) -> - {"0.0.0.0", Port}; - {ok, []} -> - undefined; - {ok, Other} -> - throw({cannot_start_multiple_nodes, multiple_tcp_listeners, - Other}); - undefined -> - throw({missing_configuration, tcp_listeners}) - end - end. diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl deleted file mode 100644 index c500548a..00000000 --- a/src/rabbit_net.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_net). --include("rabbit.hrl"). - --export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - async_recv/3, port_command/2, send/2, close/1, - sockname/1, peername/1, peercert/1]). - -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([socket/0]). - --type(stat_option() :: - 'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' | - 'send_cnt' | 'send_max' | 'send_avg' | 'send_oct' | 'send_pend'). --type(ok_val_or_error(A) :: rabbit_types:ok_or_error2(A, any())). --type(ok_or_any_error() :: rabbit_types:ok_or_error(any())). --type(socket() :: port() | #ssl_socket{}). - --spec(is_ssl/1 :: (socket()) -> boolean()). --spec(ssl_info/1 :: (socket()) - -> 'nossl' | ok_val_or_error( - {atom(), {atom(), atom(), atom()}})). --spec(controlling_process/2 :: (socket(), pid()) -> ok_or_any_error()). --spec(getstat/2 :: - (socket(), [stat_option()]) - -> ok_val_or_error([{stat_option(), integer()}])). --spec(async_recv/3 :: - (socket(), integer(), timeout()) -> rabbit_types:ok(any())). --spec(port_command/2 :: (socket(), iolist()) -> 'true'). --spec(send/2 :: (socket(), binary() | iolist()) -> ok_or_any_error()). --spec(close/1 :: (socket()) -> ok_or_any_error()). --spec(sockname/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peername/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peercert/1 :: - (socket()) - -> 'nossl' | ok_val_or_error(rabbit_ssl:certificate())). - --endif. - -%%--------------------------------------------------------------------------- - --define(IS_SSL(Sock), is_record(Sock, ssl_socket)). - -is_ssl(Sock) -> ?IS_SSL(Sock). - -ssl_info(Sock) when ?IS_SSL(Sock) -> - ssl:connection_info(Sock#ssl_socket.ssl); -ssl_info(_Sock) -> - nossl. - -controlling_process(Sock, Pid) when ?IS_SSL(Sock) -> - ssl:controlling_process(Sock#ssl_socket.ssl, Pid); -controlling_process(Sock, Pid) when is_port(Sock) -> - gen_tcp:controlling_process(Sock, Pid). - -getstat(Sock, Stats) when ?IS_SSL(Sock) -> - inet:getstat(Sock#ssl_socket.tcp, Stats); -getstat(Sock, Stats) when is_port(Sock) -> - inet:getstat(Sock, Stats). - -async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> - Pid = self(), - Ref = make_ref(), - - spawn(fun () -> Pid ! {inet_async, Sock, Ref, - ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)} - end), - - {ok, Ref}; -async_recv(Sock, Length, infinity) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, -1); -async_recv(Sock, Length, Timeout) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, Timeout). - -port_command(Sock, Data) when ?IS_SSL(Sock) -> - case ssl:send(Sock#ssl_socket.ssl, Data) of - ok -> self() ! {inet_reply, Sock, ok}, - true; - {error, Reason} -> erlang:error(Reason) - end; -port_command(Sock, Data) when is_port(Sock) -> - erlang:port_command(Sock, Data). - -send(Sock, Data) when ?IS_SSL(Sock) -> ssl:send(Sock#ssl_socket.ssl, Data); -send(Sock, Data) when is_port(Sock) -> gen_tcp:send(Sock, Data). - -close(Sock) when ?IS_SSL(Sock) -> ssl:close(Sock#ssl_socket.ssl); -close(Sock) when is_port(Sock) -> gen_tcp:close(Sock). - -sockname(Sock) when ?IS_SSL(Sock) -> ssl:sockname(Sock#ssl_socket.ssl); -sockname(Sock) when is_port(Sock) -> inet:sockname(Sock). - -peername(Sock) when ?IS_SSL(Sock) -> ssl:peername(Sock#ssl_socket.ssl); -peername(Sock) when is_port(Sock) -> inet:peername(Sock). - -peercert(Sock) when ?IS_SSL(Sock) -> ssl:peercert(Sock#ssl_socket.ssl); -peercert(Sock) when is_port(Sock) -> nossl. diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl deleted file mode 100644 index 283d25c7..00000000 --- a/src/rabbit_networking.erl +++ /dev/null @@ -1,396 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_networking). - --export([boot/0, start/0, start_tcp_listener/1, start_ssl_listener/2, - stop_tcp_listener/1, on_node_down/1, active_listeners/0, - node_listeners/1, connections/0, connection_info_keys/0, - connection_info/1, connection_info/2, - connection_info_all/0, connection_info_all/1, - close_connection/2]). - -%%used by TCP-based transports, e.g. STOMP adapter --export([check_tcp_listener_address/2]). - --export([tcp_listener_started/3, tcp_listener_stopped/3, - start_client/1, start_ssl_client/2]). - --include("rabbit.hrl"). --include_lib("kernel/include/inet.hrl"). - --define(RABBIT_TCP_OPTS, [ - binary, - {packet, raw}, % no packaging - {reuseaddr, true}, % allow rebind without waiting - {backlog, 128}, % use the maximum listen(2) backlog value - %% {nodelay, true}, % TCP_NODELAY - disable Nagle's alg. - %% {delay_send, true}, - {exit_on_close, false} - ]). - --define(SSL_TIMEOUT, 5). %% seconds - --define(FIRST_TEST_BIND_PORT, 10000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([ip_port/0, hostname/0]). - --type(family() :: atom()). --type(listener_config() :: ip_port() | - {hostname(), ip_port()} | - {hostname(), ip_port(), family()}). - --spec(start/0 :: () -> 'ok'). --spec(start_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(start_ssl_listener/2 :: - (listener_config(), rabbit_types:infos()) -> 'ok'). --spec(stop_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(active_listeners/0 :: () -> [rabbit_types:listener()]). --spec(node_listeners/1 :: (node()) -> [rabbit_types:listener()]). --spec(connections/0 :: () -> [rabbit_types:connection()]). --spec(connection_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(connection_info/1 :: - (rabbit_types:connection()) -> rabbit_types:infos()). --spec(connection_info/2 :: - (rabbit_types:connection(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(connection_info_all/0 :: () -> [rabbit_types:infos()]). --spec(connection_info_all/1 :: - (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(close_connection/2 :: (pid(), string()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(check_tcp_listener_address/2 :: (atom(), listener_config()) - -> [{inet:ip_address(), ip_port(), family(), atom()}]). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - ok = start(), - ok = boot_tcp(), - ok = boot_ssl(). - -boot_tcp() -> - {ok, TcpListeners} = application:get_env(tcp_listeners), - [ok = start_tcp_listener(Listener) || Listener <- TcpListeners], - ok. - -boot_ssl() -> - case application:get_env(ssl_listeners) of - {ok, []} -> - ok; - {ok, SslListeners} -> - ok = rabbit_misc:start_applications([crypto, public_key, ssl]), - {ok, SslOptsConfig} = application:get_env(ssl_options), - % unknown_ca errors are silently ignored prior to R14B unless we - % supply this verify_fun - remove when at least R14B is required - SslOpts = - case proplists:get_value(verify, SslOptsConfig, verify_none) of - verify_none -> SslOptsConfig; - verify_peer -> [{verify_fun, fun([]) -> true; - ([_|_]) -> false - end} - | SslOptsConfig] - end, - [start_ssl_listener(Listener, SslOpts) || Listener <- SslListeners], - ok - end. - -start() -> - {ok,_} = supervisor2:start_child( - rabbit_sup, - {rabbit_tcp_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_tcp_client_sup}, - {rabbit_connection_sup,start_link,[]}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%% inet_parse:address takes care of ip string, like "0.0.0.0" -%% inet:getaddr returns immediately for ip tuple {0,0,0,0}, -%% and runs 'inet_gethost' port process for dns lookups. -%% On Windows inet:getaddr runs dns resolver for ip string, which may fail. - -getaddr(Host, Family) -> - case inet_parse:address(Host) of - {ok, IPAddress} -> [{IPAddress, resolve_family(IPAddress, Family)}]; - {error, _} -> gethostaddr(Host, Family) - end. - -gethostaddr(Host, auto) -> - Lookups = [{Family, inet:getaddr(Host, Family)} || Family <- [inet, inet6]], - case [{IP, Family} || {Family, {ok, IP}} <- Lookups] of - [] -> host_lookup_error(Host, Lookups); - IPs -> IPs - end; - -gethostaddr(Host, Family) -> - case inet:getaddr(Host, Family) of - {ok, IPAddress} -> [{IPAddress, Family}]; - {error, Reason} -> host_lookup_error(Host, Reason) - end. - -host_lookup_error(Host, Reason) -> - error_logger:error_msg("invalid host ~p - ~p~n", [Host, Reason]), - throw({error, {invalid_host, Host, Reason}}). - -resolve_family({_,_,_,_}, auto) -> inet; -resolve_family({_,_,_,_,_,_,_,_}, auto) -> inet6; -resolve_family(IP, auto) -> throw({error, {strange_family, IP}}); -resolve_family(_, F) -> F. - -check_tcp_listener_address(NamePrefix, Port) when is_integer(Port) -> - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {"auto", Port}) -> - %% Variant to prevent lots of hacking around in bash and batch files - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {Host, Port}) -> - %% auto: determine family IPv4 / IPv6 after converting to IP address - check_tcp_listener_address(NamePrefix, {Host, Port, auto}); - -check_tcp_listener_address(NamePrefix, {Host, Port, Family0}) -> - if is_integer(Port) andalso (Port >= 0) andalso (Port =< 65535) -> ok; - true -> error_logger:error_msg("invalid port ~p - not 0..65535~n", - [Port]), - throw({error, {invalid_port, Port}}) - end, - [{IPAddress, Port, Family, - rabbit_misc:tcp_name(NamePrefix, IPAddress, Port)} || - {IPAddress, Family} <- getaddr(Host, Family0)]. - -check_tcp_listener_address_auto(NamePrefix, Port) -> - lists:append([check_tcp_listener_address(NamePrefix, Listener) || - Listener <- port_to_listeners(Port)]). - -start_tcp_listener(Listener) -> - start_listener(Listener, amqp, "TCP Listener", - {?MODULE, start_client, []}). - -start_ssl_listener(Listener, SslOpts) -> - start_listener(Listener, 'amqp/ssl', "SSL Listener", - {?MODULE, start_ssl_client, [SslOpts]}). - -start_listener(Listener, Protocol, Label, OnConnect) -> - [start_listener0(Spec, Protocol, Label, OnConnect) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -start_listener0({IPAddress, Port, Family, Name}, Protocol, Label, OnConnect) -> - {ok,_} = supervisor:start_child( - rabbit_sup, - {Name, - {tcp_listener_sup, start_link, - [IPAddress, Port, [Family | ?RABBIT_TCP_OPTS], - {?MODULE, tcp_listener_started, [Protocol]}, - {?MODULE, tcp_listener_stopped, [Protocol]}, - OnConnect, Label]}, - transient, infinity, supervisor, [tcp_listener_sup]}). - -stop_tcp_listener(Listener) -> - [stop_tcp_listener0(Spec) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -stop_tcp_listener0({IPAddress, Port, _Family, Name}) -> - Name = rabbit_misc:tcp_name(rabbit_tcp_listener_sup, IPAddress, Port), - ok = supervisor:terminate_child(rabbit_sup, Name), - ok = supervisor:delete_child(rabbit_sup, Name). - -tcp_listener_started(Protocol, IPAddress, Port) -> - %% We need the ip to distinguish e.g. 0.0.0.0 and 127.0.0.1 - %% We need the host so we can distinguish multiple instances of the above - %% in a cluster. - ok = mnesia:dirty_write( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -tcp_listener_stopped(Protocol, IPAddress, Port) -> - ok = mnesia:dirty_delete_object( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -active_listeners() -> - rabbit_misc:dirty_read_all(rabbit_listener). - -node_listeners(Node) -> - mnesia:dirty_read(rabbit_listener, Node). - -on_node_down(Node) -> - ok = mnesia:dirty_delete(rabbit_listener, Node). - -start_client(Sock, SockTransform) -> - {ok, _Child, Reader} = supervisor:start_child(rabbit_tcp_client_sup, []), - ok = rabbit_net:controlling_process(Sock, Reader), - Reader ! {go, Sock, SockTransform}, - Reader. - -start_client(Sock) -> - start_client(Sock, fun (S) -> {ok, S} end). - -start_ssl_client(SslOpts, Sock) -> - start_client( - Sock, - fun (Sock1) -> - case catch ssl:ssl_accept(Sock1, SslOpts, ?SSL_TIMEOUT * 1000) of - {ok, SslSock} -> - rabbit_log:info("upgraded TCP connection ~p to SSL~n", - [self()]), - {ok, #ssl_socket{tcp = Sock1, ssl = SslSock}}; - {error, Reason} -> - {error, {ssl_upgrade_error, Reason}}; - {'EXIT', Reason} -> - {error, {ssl_upgrade_failure, Reason}} - - end - end). - -connections() -> - [rabbit_connection_sup:reader(ConnSup) || - Node <- rabbit_mnesia:running_clustered_nodes(), - {_, ConnSup, supervisor, _} - <- supervisor:which_children({rabbit_tcp_client_sup, Node})]. - -connection_info_keys() -> rabbit_reader:info_keys(). - -connection_info(Pid) -> rabbit_reader:info(Pid). -connection_info(Pid, Items) -> rabbit_reader:info(Pid, Items). - -connection_info_all() -> cmap(fun (Q) -> connection_info(Q) end). -connection_info_all(Items) -> cmap(fun (Q) -> connection_info(Q, Items) end). - -close_connection(Pid, Explanation) -> - case lists:member(Pid, connections()) of - true -> rabbit_reader:shutdown(Pid, Explanation); - false -> throw({error, {not_a_connection_pid, Pid}}) - end. - -%%-------------------------------------------------------------------- - -tcp_host({0,0,0,0}) -> - hostname(); - -tcp_host({0,0,0,0,0,0,0,0}) -> - hostname(); - -tcp_host(IPAddress) -> - case inet:gethostbyaddr(IPAddress) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> rabbit_misc:ntoa(IPAddress) - end. - -hostname() -> - {ok, Hostname} = inet:gethostname(), - case inet:gethostbyname(Hostname) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> Hostname - end. - -cmap(F) -> rabbit_misc:filter_exit_map(F, connections()). - -%%-------------------------------------------------------------------- - -%% There are three kinds of machine (for our purposes). -%% -%% * Those which treat IPv4 addresses as a special kind of IPv6 address -%% ("Single stack") -%% - Linux by default, Windows Vista and later -%% - We also treat any (hypothetical?) IPv6-only machine the same way -%% * Those which consider IPv6 and IPv4 to be completely separate things -%% ("Dual stack") -%% - OpenBSD, Windows XP / 2003, Linux if so configured -%% * Those which do not support IPv6. -%% - Ancient/weird OSes, Linux if so configured -%% -%% How to reconfigure Linux to test this: -%% Single stack (default): -%% echo 0 > /proc/sys/net/ipv6/bindv6only -%% Dual stack: -%% echo 1 > /proc/sys/net/ipv6/bindv6only -%% IPv4 only: -%% add ipv6.disable=1 to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub then -%% sudo update-grub && sudo reboot -%% -%% This matters in (and only in) the case where the sysadmin (or the -%% app descriptor) has only supplied a port and we wish to bind to -%% "all addresses". This means different things depending on whether -%% we're single or dual stack. On single stack binding to "::" -%% implicitly includes all IPv4 addresses, and subsequently attempting -%% to bind to "0.0.0.0" will fail. On dual stack, binding to "::" will -%% only bind to IPv6 addresses, and we need another listener bound to -%% "0.0.0.0" for IPv4. Finally, on IPv4-only systems we of course only -%% want to bind to "0.0.0.0". -%% -%% Unfortunately it seems there is no way to detect single vs dual stack -%% apart from attempting to bind to the port. -port_to_listeners(Port) -> - IPv4 = {"0.0.0.0", Port, inet}, - IPv6 = {"::", Port, inet6}, - case ipv6_status(?FIRST_TEST_BIND_PORT) of - single_stack -> [IPv6]; - ipv6_only -> [IPv6]; - dual_stack -> [IPv6, IPv4]; - ipv4_only -> [IPv4] - end. - -ipv6_status(TestPort) -> - IPv4 = [inet, {ip, {0,0,0,0}}], - IPv6 = [inet6, {ip, {0,0,0,0,0,0,0,0}}], - case gen_tcp:listen(TestPort, IPv6) of - {ok, LSock6} -> - case gen_tcp:listen(TestPort, IPv4) of - {ok, LSock4} -> - %% Dual stack - gen_tcp:close(LSock6), - gen_tcp:close(LSock4), - dual_stack; - %% Checking the error here would only let us - %% distinguish single stack IPv6 / IPv4 vs IPv6 only, - %% which we figure out below anyway. - {error, _} -> - gen_tcp:close(LSock6), - case gen_tcp:listen(TestPort, IPv4) of - %% Single stack - {ok, LSock4} -> gen_tcp:close(LSock4), - single_stack; - %% IPv6-only machine. Welcome to the future. - {error, eafnosupport} -> ipv6_only; - %% Dual stack machine with something already - %% on IPv4. - {error, _} -> ipv6_status(TestPort + 1) - end - end; - {error, eafnosupport} -> - %% IPv4-only machine. Welcome to the 90s. - ipv4_only; - {error, _} -> - %% Port in use - ipv6_status(TestPort + 1) - end. diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl deleted file mode 100644 index 817abaa2..00000000 --- a/src/rabbit_node_monitor.erl +++ /dev/null @@ -1,101 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_node_monitor). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([notify_cluster/0, rabbit_running_on/1]). - --define(SERVER, ?MODULE). --define(RABBIT_UP_RPC_TIMEOUT, 2000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(rabbit_running_on/1 :: (node()) -> 'ok'). --spec(notify_cluster/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -rabbit_running_on(Node) -> - gen_server:cast(rabbit_node_monitor, {rabbit_running_on, Node}). - -notify_cluster() -> - Node = node(), - Nodes = rabbit_mnesia:running_clustered_nodes() -- [Node], - %% notify other rabbits of this rabbit - case rpc:multicall(Nodes, rabbit_node_monitor, rabbit_running_on, - [Node], ?RABBIT_UP_RPC_TIMEOUT) of - {_, [] } -> ok; - {_, Bad} -> rabbit_log:info("failed to contact nodes ~p~n", [Bad]) - end, - %% register other active rabbits with this rabbit - [ rabbit_node_monitor:rabbit_running_on(N) || N <- Nodes ], - ok. - -%%-------------------------------------------------------------------- - -init([]) -> - ok = net_kernel:monitor_nodes(true), - {ok, no_state}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({rabbit_running_on, Node}, State) -> - rabbit_log:info("node ~p up~n", [Node]), - erlang:monitor(process, {rabbit, Node}), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({nodedown, Node}, State) -> - rabbit_log:info("node ~p down~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info({'DOWN', _MRef, process, {rabbit, Node}, _Reason}, State) -> - rabbit_log:info("node ~p lost 'rabbit'~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -%% TODO: This may turn out to be a performance hog when there are -%% lots of nodes. We really only need to execute this code on -%% *one* node, rather than all of them. -handle_dead_rabbit(Node) -> - ok = rabbit_networking:on_node_down(Node), - ok = rabbit_amqqueue:on_node_down(Node). - diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl deleted file mode 100644 index d9d92788..00000000 --- a/src/rabbit_prelaunch.erl +++ /dev/null @@ -1,276 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_prelaunch). - --export([start/0, stop/0]). - --define(BaseApps, [rabbit]). --define(ERROR_CODE, 1). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - io:format("Activating RabbitMQ plugins ...~n"), - - %% Determine our various directories - [PluginDir, UnpackedPluginDir, NodeStr] = init:get_plain_arguments(), - RootName = UnpackedPluginDir ++ "/rabbit", - - %% Unpack any .ez plugins - unpack_ez_plugins(PluginDir, UnpackedPluginDir), - - %% Build a list of required apps based on the fixed set, and any plugins - PluginApps = find_plugins(PluginDir) ++ find_plugins(UnpackedPluginDir), - RequiredApps = ?BaseApps ++ PluginApps, - - %% Build the entire set of dependencies - this will load the - %% applications along the way - AllApps = case catch sets:to_list(expand_dependencies(RequiredApps)) of - {failed_to_load_app, App, Err} -> - terminate("failed to load application ~s:~n~p", - [App, Err]); - AppList -> - AppList - end, - AppVersions = [determine_version(App) || App <- AllApps], - RabbitVersion = proplists:get_value(rabbit, AppVersions), - - %% Build the overall release descriptor - RDesc = {release, - {"rabbit", RabbitVersion}, - {erts, erlang:system_info(version)}, - AppVersions}, - - %% Write it out to $RABBITMQ_PLUGINS_EXPAND_DIR/rabbit.rel - file:write_file(RootName ++ ".rel", io_lib:format("~p.~n", [RDesc])), - - %% Compile the script - ScriptFile = RootName ++ ".script", - case systools:make_script(RootName, [local, silent, exref]) of - {ok, Module, Warnings} -> - %% This gets lots of spurious no-source warnings when we - %% have .ez files, so we want to supress them to prevent - %% hiding real issues. On Ubuntu, we also get warnings - %% about kernel/stdlib sources being out of date, which we - %% also ignore for the same reason. - WarningStr = Module:format_warning( - [W || W <- Warnings, - case W of - {warning, {source_not_found, _}} -> false; - {warning, {obj_out_of_date, {_,_,WApp,_,_}}} - when WApp == mnesia; - WApp == stdlib; - WApp == kernel; - WApp == sasl; - WApp == crypto; - WApp == os_mon -> false; - _ -> true - end]), - case length(WarningStr) of - 0 -> ok; - _ -> io:format("~s", [WarningStr]) - end, - ok; - {error, Module, Error} -> - terminate("generation of boot script file ~s failed:~n~s", - [ScriptFile, Module:format_error(Error)]) - end, - - case post_process_script(ScriptFile) of - ok -> ok; - {error, Reason} -> - terminate("post processing of boot script file ~s failed:~n~w", - [ScriptFile, Reason]) - end, - case systools:script2boot(RootName) of - ok -> ok; - error -> terminate("failed to compile boot script file ~s", - [ScriptFile]) - end, - io:format("~w plugins activated:~n", [length(PluginApps)]), - [io:format("* ~s-~s~n", [App, proplists:get_value(App, AppVersions)]) - || App <- PluginApps], - io:nl(), - - ok = duplicate_node_check(NodeStr), - - terminate(0), - ok. - -stop() -> - ok. - -determine_version(App) -> - application:load(App), - {ok, Vsn} = application:get_key(App, vsn), - {App, Vsn}. - -delete_recursively(Fn) -> - case filelib:is_dir(Fn) and not(is_symlink(Fn)) of - true -> - case file:list_dir(Fn) of - {ok, Files} -> - case lists:foldl(fun ( Fn1, ok) -> delete_recursively( - Fn ++ "/" ++ Fn1); - (_Fn1, Err) -> Err - end, ok, Files) of - ok -> case file:del_dir(Fn) of - ok -> ok; - {error, E} -> {error, - {cannot_delete, Fn, E}} - end; - Err -> Err - end; - {error, E} -> - {error, {cannot_list_files, Fn, E}} - end; - false -> - case filelib:is_file(Fn) of - true -> case file:delete(Fn) of - ok -> ok; - {error, E} -> {error, {cannot_delete, Fn, E}} - end; - false -> ok - end - end. - -is_symlink(Name) -> - case file:read_link(Name) of - {ok, _} -> true; - _ -> false - end. - -unpack_ez_plugins(SrcDir, DestDir) -> - %% Eliminate the contents of the destination directory - case delete_recursively(DestDir) of - ok -> ok; - {error, E} -> terminate("Could not delete dir ~s (~p)", [DestDir, E]) - end, - case filelib:ensure_dir(DestDir ++ "/") of - ok -> ok; - {error, E2} -> terminate("Could not create dir ~s (~p)", [DestDir, E2]) - end, - [unpack_ez_plugin(PluginName, DestDir) || - PluginName <- filelib:wildcard(SrcDir ++ "/*.ez")]. - -unpack_ez_plugin(PluginFn, PluginDestDir) -> - zip:unzip(PluginFn, [{cwd, PluginDestDir}]), - ok. - -find_plugins(PluginDir) -> - [prepare_dir_plugin(PluginName) || - PluginName <- filelib:wildcard(PluginDir ++ "/*/ebin/*.app")]. - -prepare_dir_plugin(PluginAppDescFn) -> - %% Add the plugin ebin directory to the load path - PluginEBinDirN = filename:dirname(PluginAppDescFn), - code:add_path(PluginEBinDirN), - - %% We want the second-last token - NameTokens = string:tokens(PluginAppDescFn,"/."), - PluginNameString = lists:nth(length(NameTokens) - 1, NameTokens), - list_to_atom(PluginNameString). - -expand_dependencies(Pending) -> - expand_dependencies(sets:new(), Pending). -expand_dependencies(Current, []) -> - Current; -expand_dependencies(Current, [Next|Rest]) -> - case sets:is_element(Next, Current) of - true -> - expand_dependencies(Current, Rest); - false -> - case application:load(Next) of - ok -> - ok; - {error, {already_loaded, _}} -> - ok; - {error, Reason} -> - throw({failed_to_load_app, Next, Reason}) - end, - {ok, Required} = application:get_key(Next, applications), - Unique = [A || A <- Required, not(sets:is_element(A, Current))], - expand_dependencies(sets:add_element(Next, Current), Rest ++ Unique) - end. - -post_process_script(ScriptFile) -> - case file:consult(ScriptFile) of - {ok, [{script, Name, Entries}]} -> - NewEntries = lists:flatmap(fun process_entry/1, Entries), - case file:open(ScriptFile, [write]) of - {ok, Fd} -> - io:format(Fd, "%% script generated at ~w ~w~n~p.~n", - [date(), time(), {script, Name, NewEntries}]), - file:close(Fd), - ok; - {error, OReason} -> - {error, {failed_to_open_script_file_for_writing, OReason}} - end; - {error, Reason} -> - {error, {failed_to_load_script, Reason}} - end. - -process_entry(Entry = {apply,{application,start_boot,[rabbit,permanent]}}) -> - [{apply,{rabbit,prepare,[]}}, Entry]; -process_entry(Entry) -> - [Entry]. - -%% Check whether a node with the same name is already running -duplicate_node_check([]) -> - %% Ignore running node while installing windows service - ok; -duplicate_node_check(NodeStr) -> - Node = rabbit_misc:makenode(NodeStr), - {NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - case net_adm:names(NodeHost) of - {ok, NamePorts} -> - case proplists:is_defined(NodeName, NamePorts) of - true -> io:format("node with name ~p " - "already running on ~p~n", - [NodeName, NodeHost]), - [io:format(Fmt ++ "~n", Args) || - {Fmt, Args} <- rabbit_control:diagnostics(Node)], - terminate(?ERROR_CODE); - false -> ok - end; - {error, EpmdReason} -> terminate("unexpected epmd error: ~p~n", - [EpmdReason]) - end. - -terminate(Fmt, Args) -> - io:format("ERROR: " ++ Fmt ++ "~n", Args), - terminate(?ERROR_CODE). - -terminate(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status), - receive - after infinity -> ok - end - end. diff --git a/src/rabbit_queue_collector.erl b/src/rabbit_queue_collector.erl deleted file mode 100644 index 9b45e798..00000000 --- a/src/rabbit_queue_collector.erl +++ /dev/null @@ -1,92 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_collector). - --behaviour(gen_server). - --export([start_link/0, register/2, delete_all/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {queues, delete_from}). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/2 :: (pid(), rabbit_types:amqqueue()) -> 'ok'). --spec(delete_all/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link(?MODULE, [], []). - -register(CollectorPid, Q) -> - gen_server:call(CollectorPid, {register, Q}, infinity). - -delete_all(CollectorPid) -> - gen_server:call(CollectorPid, delete_all, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state{queues = dict:new(), delete_from = undefined}}. - -%%-------------------------------------------------------------------------- - -handle_call({register, Q}, _From, - State = #state{queues = Queues, delete_from = Deleting}) -> - MonitorRef = erlang:monitor(process, Q#amqqueue.pid), - case Deleting of - undefined -> ok; - _ -> rabbit_amqqueue:delete_immediately(Q) - end, - {reply, ok, State#state{queues = dict:store(MonitorRef, Q, Queues)}}; - -handle_call(delete_all, From, State = #state{queues = Queues, - delete_from = undefined}) -> - case dict:size(Queues) of - 0 -> {reply, ok, State#state{delete_from = From}}; - _ -> [rabbit_amqqueue:delete_immediately(Q) - || {_MRef, Q} <- dict:to_list(Queues)], - {noreply, State#state{delete_from = From}} - end. - -handle_cast(Msg, State) -> - {stop, {unhandled_cast, Msg}, State}. - -handle_info({'DOWN', MonitorRef, process, _DownPid, _Reason}, - State = #state{queues = Queues, delete_from = Deleting}) -> - Queues1 = dict:erase(MonitorRef, Queues), - case Deleting =/= undefined andalso dict:size(Queues1) =:= 0 of - true -> gen_server:reply(Deleting, ok); - false -> ok - end, - {noreply, State#state{queues = Queues1}}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl deleted file mode 100644 index 76b1136f..00000000 --- a/src/rabbit_queue_index.erl +++ /dev/null @@ -1,1071 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_index). - --export([init/2, shutdown_terms/1, recover/5, - terminate/2, delete_and_terminate/1, - publish/5, deliver/2, ack/2, sync/1, sync/2, flush/1, read/3, - next_segment_boundary/1, bounds/1, recover/1]). - --export([add_queue_ttl/0]). - --define(CLEAN_FILENAME, "clean.dot"). - -%%---------------------------------------------------------------------------- - -%% The queue index is responsible for recording the order of messages -%% within a queue on disk. -%% -%% Because of the fact that the queue can decide at any point to send -%% a queue entry to disk, you can not rely on publishes appearing in -%% order. The only thing you can rely on is a message being published, -%% then delivered, then ack'd. -%% -%% In order to be able to clean up ack'd messages, we write to segment -%% files. These files have a fixed maximum size: ?SEGMENT_ENTRY_COUNT -%% publishes, delivers and acknowledgements. They are numbered, and so -%% it is known that the 0th segment contains messages 0 -> -%% ?SEGMENT_ENTRY_COUNT - 1, the 1st segment contains messages -%% ?SEGMENT_ENTRY_COUNT -> 2*?SEGMENT_ENTRY_COUNT - 1 and so on. As -%% such, in the segment files, we only refer to message sequence ids -%% by the LSBs as SeqId rem ?SEGMENT_ENTRY_COUNT. This gives them a -%% fixed size. -%% -%% However, transient messages which are not sent to disk at any point -%% will cause gaps to appear in segment files. Therefore, we delete a -%% segment file whenever the number of publishes == number of acks -%% (note that although it is not fully enforced, it is assumed that a -%% message will never be ackd before it is delivered, thus this test -%% also implies == number of delivers). In practise, this does not -%% cause disk churn in the pathological case because of the journal -%% and caching (see below). -%% -%% Because of the fact that publishes, delivers and acks can occur all -%% over, we wish to avoid lots of seeking. Therefore we have a fixed -%% sized journal to which all actions are appended. When the number of -%% entries in this journal reaches max_journal_entries, the journal -%% entries are scattered out to their relevant files, and the journal -%% is truncated to zero size. Note that entries in the journal must -%% carry the full sequence id, thus the format of entries in the -%% journal is different to that in the segments. -%% -%% The journal is also kept fully in memory, pre-segmented: the state -%% contains a mapping from segment numbers to state-per-segment (this -%% state is held for all segments which have been "seen": thus a -%% segment which has been read but has no pending entries in the -%% journal is still held in this mapping. Also note that a dict is -%% used for this mapping, not an array because with an array, you will -%% always have entries from 0). Actions are stored directly in this -%% state. Thus at the point of flushing the journal, firstly no -%% reading from disk is necessary, but secondly if the known number of -%% acks and publishes in a segment are equal, given the known state of -%% the segment file combined with the journal, no writing needs to be -%% done to the segment file either (in fact it is deleted if it exists -%% at all). This is safe given that the set of acks is a subset of the -%% set of publishes. When it's necessary to sync messages because of -%% transactions, it's only necessary to fsync on the journal: when -%% entries are distributed from the journal to segment files, those -%% segments appended to are fsync'd prior to the journal being -%% truncated. -%% -%% This module is also responsible for scanning the queue index files -%% and seeding the message store on start up. -%% -%% Note that in general, the representation of a message's state as -%% the tuple: {('no_pub'|{Guid, MsgProps, IsPersistent}), -%% ('del'|'no_del'), ('ack'|'no_ack')} is richer than strictly -%% necessary for most operations. However, for startup, and to ensure -%% the safe and correct combination of journal entries with entries -%% read from the segment on disk, this richer representation vastly -%% simplifies and clarifies the code. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. -%% -%%---------------------------------------------------------------------------- - -%% ---- Journal details ---- - --define(JOURNAL_FILENAME, "journal.jif"). - --define(PUB_PERSIST_JPREFIX, 2#00). --define(PUB_TRANS_JPREFIX, 2#01). --define(DEL_JPREFIX, 2#10). --define(ACK_JPREFIX, 2#11). --define(JPREFIX_BITS, 2). --define(SEQ_BYTES, 8). --define(SEQ_BITS, ((?SEQ_BYTES * 8) - ?JPREFIX_BITS)). - -%% ---- Segment details ---- - --define(SEGMENT_EXTENSION, ".idx"). - -%% TODO: The segment size would be configurable, but deriving all the -%% other values is quite hairy and quite possibly noticably less -%% efficient, depending on how clever the compiler is when it comes to -%% binary generation/matching with constant vs variable lengths. - --define(REL_SEQ_BITS, 14). --define(SEGMENT_ENTRY_COUNT, 16384). %% trunc(math:pow(2,?REL_SEQ_BITS))). - -%% seq only is binary 00 followed by 14 bits of rel seq id -%% (range: 0 - 16383) --define(REL_SEQ_ONLY_PREFIX, 00). --define(REL_SEQ_ONLY_PREFIX_BITS, 2). --define(REL_SEQ_ONLY_ENTRY_LENGTH_BYTES, 2). - -%% publish record is binary 1 followed by a bit for is_persistent, -%% then 14 bits of rel seq id, 64 bits for message expiry and 128 bits -%% of md5sum msg id --define(PUBLISH_PREFIX, 1). --define(PUBLISH_PREFIX_BITS, 1). - --define(EXPIRY_BYTES, 8). --define(EXPIRY_BITS, (?EXPIRY_BYTES * 8)). --define(NO_EXPIRY, 0). - --define(GUID_BYTES, 16). %% md5sum is 128 bit or 16 bytes --define(GUID_BITS, (?GUID_BYTES * 8)). -%% 16 bytes for md5sum + 8 for expiry + 2 for seq, bits and prefix --define(PUBLISH_RECORD_LENGTH_BYTES, ?GUID_BYTES + ?EXPIRY_BYTES + 2). - -%% 1 publish, 1 deliver, 1 ack per msg --define(SEGMENT_TOTAL_SIZE, ?SEGMENT_ENTRY_COUNT * - (?PUBLISH_RECORD_LENGTH_BYTES + - (2 * ?REL_SEQ_ONLY_ENTRY_LENGTH_BYTES))). - -%% ---- misc ---- - --define(PUB, {_, _, _}). %% {Guid, MsgProps, IsPersistent} - --define(READ_MODE, [binary, raw, read]). --define(READ_AHEAD_MODE, [{read_ahead, ?SEGMENT_TOTAL_SIZE} | ?READ_MODE]). --define(WRITE_MODE, [write | ?READ_MODE]). - -%%---------------------------------------------------------------------------- - --record(qistate, { dir, segments, journal_handle, dirty_count, - max_journal_entries, on_sync, unsynced_guids }). - --record(segment, { num, path, journal_entries, unacked }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({add_queue_ttl, []}). - --ifdef(use_specs). - --type(hdl() :: ('undefined' | any())). --type(segment() :: ('undefined' | - #segment { num :: non_neg_integer(), - path :: file:filename(), - journal_entries :: array(), - unacked :: non_neg_integer() - })). --type(seq_id() :: integer()). --type(seg_dict() :: {dict(), [segment()]}). --type(on_sync_fun() :: fun ((gb_set()) -> ok)). --type(qistate() :: #qistate { dir :: file:filename(), - segments :: 'undefined' | seg_dict(), - journal_handle :: hdl(), - dirty_count :: integer(), - max_journal_entries :: non_neg_integer(), - on_sync :: on_sync_fun(), - unsynced_guids :: [rabbit_guid:guid()] - }). --type(startup_fun_state() :: - {fun ((A) -> 'finished' | {rabbit_guid:guid(), non_neg_integer(), A}), - A}). --type(shutdown_terms() :: [any()]). - --spec(init/2 :: (rabbit_amqqueue:name(), on_sync_fun()) -> qistate()). --spec(shutdown_terms/1 :: (rabbit_amqqueue:name()) -> shutdown_terms()). --spec(recover/5 :: (rabbit_amqqueue:name(), shutdown_terms(), boolean(), - fun ((rabbit_guid:guid()) -> boolean()), on_sync_fun()) -> - {'undefined' | non_neg_integer(), qistate()}). --spec(terminate/2 :: ([any()], qistate()) -> qistate()). --spec(delete_and_terminate/1 :: (qistate()) -> qistate()). --spec(publish/5 :: (rabbit_guid:guid(), seq_id(), - rabbit_types:message_properties(), boolean(), qistate()) - -> qistate()). --spec(deliver/2 :: ([seq_id()], qistate()) -> qistate()). --spec(ack/2 :: ([seq_id()], qistate()) -> qistate()). --spec(sync/2 :: ([seq_id()], qistate()) -> qistate()). --spec(flush/1 :: (qistate()) -> qistate()). --spec(read/3 :: (seq_id(), seq_id(), qistate()) -> - {[{rabbit_guid:guid(), seq_id(), - rabbit_types:message_properties(), - boolean(), boolean()}], qistate()}). --spec(next_segment_boundary/1 :: (seq_id()) -> seq_id()). --spec(bounds/1 :: (qistate()) -> - {non_neg_integer(), non_neg_integer(), qistate()}). --spec(recover/1 :: ([rabbit_amqqueue:name()]) -> - {[[any()]], startup_fun_state()}). - --spec(add_queue_ttl/0 :: () -> 'ok'). - --endif. - - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -init(Name, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - false = filelib:is_file(Dir), %% is_file == is file or dir - State #qistate { on_sync = OnSyncFun }. - -shutdown_terms(Name) -> - #qistate { dir = Dir } = blank_state(Name), - case read_shutdown_terms(Dir) of - {error, _} -> []; - {ok, Terms1} -> Terms1 - end. - -recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - State1 = State #qistate { on_sync = OnSyncFun }, - CleanShutdown = detect_clean_shutdown(Dir), - case CleanShutdown andalso MsgStoreRecovered of - true -> RecoveredCounts = proplists:get_value(segments, Terms, []), - init_clean(RecoveredCounts, State1); - false -> init_dirty(CleanShutdown, ContainsCheckFun, State1) - end. - -terminate(Terms, State) -> - {SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - store_clean_shutdown([{segments, SegmentCounts} | Terms], Dir), - State1. - -delete_and_terminate(State) -> - {_SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - ok = rabbit_misc:recursive_delete([Dir]), - State1. - -publish(Guid, SeqId, MsgProps, IsPersistent, - State = #qistate { unsynced_guids = UnsyncedGuids }) - when is_binary(Guid) -> - ?GUID_BYTES = size(Guid), - {JournalHdl, State1} = get_journal_handle( - State #qistate { - unsynced_guids = [Guid | UnsyncedGuids] }), - ok = file_handle_cache:append( - JournalHdl, [<<(case IsPersistent of - true -> ?PUB_PERSIST_JPREFIX; - false -> ?PUB_TRANS_JPREFIX - end):?JPREFIX_BITS, - SeqId:?SEQ_BITS>>, - create_pub_record_body(Guid, MsgProps)]), - maybe_flush_journal( - add_to_journal(SeqId, {Guid, MsgProps, IsPersistent}, State1)). - -deliver(SeqIds, State) -> - deliver_or_ack(del, SeqIds, State). - -ack(SeqIds, State) -> - deliver_or_ack(ack, SeqIds, State). - -%% This is only called when there are outstanding confirms and the -%% queue is idle. -sync(State = #qistate { unsynced_guids = Guids }) -> - sync_if([] =/= Guids, State). - -sync(SeqIds, State) -> - %% The SeqIds here contains the SeqId of every publish and ack in - %% the transaction. Ideally we should go through these seqids and - %% only sync the journal if the pubs or acks appear in the - %% journal. However, this would be complex to do, and given that - %% the variable queue publishes and acks to the qi, and then - %% syncs, all in one operation, there is no possibility of the - %% seqids not being in the journal, provided the transaction isn't - %% emptied (handled by sync_if anyway). - sync_if([] =/= SeqIds, State). - -flush(State = #qistate { dirty_count = 0 }) -> State; -flush(State) -> flush_journal(State). - -read(StartEnd, StartEnd, State) -> - {[], State}; -read(Start, End, State = #qistate { segments = Segments, - dir = Dir }) when Start =< End -> - %% Start is inclusive, End is exclusive. - LowerB = {StartSeg, _StartRelSeq} = seq_id_to_seg_and_rel_seq_id(Start), - UpperB = {EndSeg, _EndRelSeq} = seq_id_to_seg_and_rel_seq_id(End - 1), - {Messages, Segments1} = - lists:foldr(fun (Seg, Acc) -> - read_bounded_segment(Seg, LowerB, UpperB, Acc, Dir) - end, {[], Segments}, lists:seq(StartSeg, EndSeg)), - {Messages, State #qistate { segments = Segments1 }}. - -next_segment_boundary(SeqId) -> - {Seg, _RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - reconstruct_seq_id(Seg + 1, 0). - -bounds(State = #qistate { segments = Segments }) -> - %% This is not particularly efficient, but only gets invoked on - %% queue initialisation. - SegNums = lists:sort(segment_nums(Segments)), - %% Don't bother trying to figure out the lowest seq_id, merely the - %% seq_id of the start of the lowest segment. That seq_id may not - %% actually exist, but that's fine. The important thing is that - %% the segment exists and the seq_id reported is on a segment - %% boundary. - %% - %% We also don't really care about the max seq_id. Just start the - %% next segment: it makes life much easier. - %% - %% SegNums is sorted, ascending. - {LowSeqId, NextSeqId} = - case SegNums of - [] -> {0, 0}; - [MinSeg|_] -> {reconstruct_seq_id(MinSeg, 0), - reconstruct_seq_id(1 + lists:last(SegNums), 0)} - end, - {LowSeqId, NextSeqId, State}. - -recover(DurableQueues) -> - DurableDict = dict:from_list([ {queue_name_to_dir_name(Queue), Queue} || - Queue <- DurableQueues ]), - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), - {DurableQueueNames, DurableTerms} = - lists:foldl( - fun (QueueDirName, {DurableAcc, TermsAcc}) -> - QueueDirPath = filename:join(QueuesDir, QueueDirName), - case sets:is_element(QueueDirName, DurableDirectories) of - true -> - TermsAcc1 = - case read_shutdown_terms(QueueDirPath) of - {error, _} -> TermsAcc; - {ok, Terms} -> [Terms | TermsAcc] - end, - {[dict:fetch(QueueDirName, DurableDict) | DurableAcc], - TermsAcc1}; - false -> - ok = rabbit_misc:recursive_delete([QueueDirPath]), - {DurableAcc, TermsAcc} - end - end, {[], []}, QueueDirNames), - {DurableTerms, {fun queue_index_walker/1, {start, DurableQueueNames}}}. - -all_queue_directory_names(Dir) -> - case file:list_dir(Dir) of - {ok, Entries} -> [ Entry || Entry <- Entries, - filelib:is_dir( - filename:join(Dir, Entry)) ]; - {error, enoent} -> [] - end. - -%%---------------------------------------------------------------------------- -%% startup and shutdown -%%---------------------------------------------------------------------------- - -blank_state(QueueName) -> - Dir = filename:join(queues_dir(), queue_name_to_dir_name(QueueName)), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - #qistate { dir = Dir, - segments = segments_new(), - journal_handle = undefined, - dirty_count = 0, - max_journal_entries = MaxJournal, - on_sync = fun (_) -> ok end, - unsynced_guids = [] }. - -clean_file_name(Dir) -> filename:join(Dir, ?CLEAN_FILENAME). - -detect_clean_shutdown(Dir) -> - case file:delete(clean_file_name(Dir)) of - ok -> true; - {error, enoent} -> false - end. - -read_shutdown_terms(Dir) -> - rabbit_misc:read_term_file(clean_file_name(Dir)). - -store_clean_shutdown(Terms, Dir) -> - CleanFileName = clean_file_name(Dir), - ok = filelib:ensure_dir(CleanFileName), - rabbit_misc:write_term_file(CleanFileName, Terms). - -init_clean(RecoveredCounts, State) -> - %% Load the journal. Since this is a clean recovery this (almost) - %% gets us back to where we were on shutdown. - State1 = #qistate { dir = Dir, segments = Segments } = load_journal(State), - %% The journal loading only creates records for segments touched - %% by the journal, and the counts are based on the journal entries - %% only. We need *complete* counts for *all* segments. By an - %% amazing coincidence we stored that information on shutdown. - Segments1 = - lists:foldl( - fun ({Seg, UnackedCount}, SegmentsN) -> - Segment = segment_find_or_new(Seg, Dir, SegmentsN), - segment_store(Segment #segment { unacked = UnackedCount }, - SegmentsN) - end, Segments, RecoveredCounts), - %% the counts above include transient messages, which would be the - %% wrong thing to return - {undefined, State1 # qistate { segments = Segments1 }}. - -init_dirty(CleanShutdown, ContainsCheckFun, State) -> - %% Recover the journal completely. This will also load segments - %% which have entries in the journal and remove duplicates. The - %% counts will correctly reflect the combination of the segment - %% and the journal. - State1 = #qistate { dir = Dir, segments = Segments } = - recover_journal(State), - {Segments1, Count} = - %% Load each segment in turn and filter out messages that are - %% not in the msg_store, by adding acks to the journal. These - %% acks only go to the RAM journal as it doesn't matter if we - %% lose them. Also mark delivered if not clean shutdown. Also - %% find the number of unacked messages. - lists:foldl( - fun (Seg, {Segments2, CountAcc}) -> - Segment = #segment { unacked = UnackedCount } = - recover_segment(ContainsCheckFun, CleanShutdown, - segment_find_or_new(Seg, Dir, Segments2)), - {segment_store(Segment, Segments2), CountAcc + UnackedCount} - end, {Segments, 0}, all_segment_nums(State1)), - %% Unconditionally flush since the dirty_count doesn't get updated - %% by the above foldl. - State2 = flush_journal(State1 #qistate { segments = Segments1 }), - {Count, State2}. - -terminate(State = #qistate { journal_handle = JournalHdl, - segments = Segments }) -> - ok = case JournalHdl of - undefined -> ok; - _ -> file_handle_cache:close(JournalHdl) - end, - SegmentCounts = - segment_fold( - fun (#segment { num = Seg, unacked = UnackedCount }, Acc) -> - [{Seg, UnackedCount} | Acc] - end, [], Segments), - {SegmentCounts, State #qistate { journal_handle = undefined, - segments = undefined }}. - -recover_segment(ContainsCheckFun, CleanShutdown, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, UnackedCount} = load_segment(false, Segment), - {SegEntries1, UnackedCountDelta} = - segment_plus_journal(SegEntries, JEntries), - array:sparse_foldl( - fun (RelSeq, {{Guid, _MsgProps, _IsPersistent}, Del, no_ack}, Segment1) -> - recover_message(ContainsCheckFun(Guid), CleanShutdown, - Del, RelSeq, Segment1) - end, - Segment #segment { unacked = UnackedCount + UnackedCountDelta }, - SegEntries1). - -recover_message( true, true, _Del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, del, Segment); -recover_message(false, _, del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, Segment); -recover_message(false, _, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, add_to_journal(RelSeq, del, Segment)). - -queue_name_to_dir_name(Name = #resource { kind = queue }) -> - <> = erlang:md5(term_to_binary(Name)), - lists:flatten(io_lib:format("~.36B", [Num])). - -queues_dir() -> - filename:join(rabbit_mnesia:dir(), "queues"). - -%%---------------------------------------------------------------------------- -%% msg store startup delta function -%%---------------------------------------------------------------------------- - -queue_index_walker({start, DurableQueues}) when is_list(DurableQueues) -> - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> queue_index_walker_reader(QueueName, Gatherer) - end) - end || QueueName <- DurableQueues], - queue_index_walker({next, Gatherer}); - -queue_index_walker({next, Gatherer}) when is_pid(Gatherer) -> - case gatherer:out(Gatherer) of - empty -> - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer), - finished; - {value, {Guid, Count}} -> - {Guid, Count, {next, Gatherer}} - end. - -queue_index_walker_reader(QueueName, Gatherer) -> - State = #qistate { segments = Segments, dir = Dir } = - recover_journal(blank_state(QueueName)), - [ok = segment_entries_foldr( - fun (_RelSeq, {{Guid, _MsgProps, true}, _IsDelivered, no_ack}, - ok) -> - gatherer:in(Gatherer, {Guid, 1}); - (_RelSeq, _Value, Acc) -> - Acc - end, ok, segment_find_or_new(Seg, Dir, Segments)) || - Seg <- all_segment_nums(State)], - {_SegmentCounts, _State} = terminate(State), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% expiry/binary manipulation -%%---------------------------------------------------------------------------- - -create_pub_record_body(Guid, #message_properties{expiry = Expiry}) -> - [Guid, expiry_to_binary(Expiry)]. - -expiry_to_binary(undefined) -> <>; -expiry_to_binary(Expiry) -> <>. - -read_pub_record_body(Hdl) -> - case file_handle_cache:read(Hdl, ?GUID_BYTES + ?EXPIRY_BYTES) of - {ok, Bin} -> - %% work around for binary data fragmentation. See - %% rabbit_msg_file:read_next/2 - <> = Bin, - <> = <>, - Exp = case Expiry of - ?NO_EXPIRY -> undefined; - X -> X - end, - {Guid, #message_properties{expiry = Exp}}; - Error -> - Error - end. - -%%---------------------------------------------------------------------------- -%% journal manipulation -%%---------------------------------------------------------------------------- - -add_to_journal(SeqId, Action, State = #qistate { dirty_count = DCount, - segments = Segments, - dir = Dir }) -> - {Seg, RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - Segment = segment_find_or_new(Seg, Dir, Segments), - Segment1 = add_to_journal(RelSeq, Action, Segment), - State #qistate { dirty_count = DCount + 1, - segments = segment_store(Segment1, Segments) }; - -add_to_journal(RelSeq, Action, - Segment = #segment { journal_entries = JEntries, - unacked = UnackedCount }) -> - Segment1 = Segment #segment { - journal_entries = add_to_journal(RelSeq, Action, JEntries) }, - case Action of - del -> Segment1; - ack -> Segment1 #segment { unacked = UnackedCount - 1 }; - ?PUB -> Segment1 #segment { unacked = UnackedCount + 1 } - end; - -add_to_journal(RelSeq, Action, JEntries) -> - Val = case array:get(RelSeq, JEntries) of - undefined -> - case Action of - ?PUB -> {Action, no_del, no_ack}; - del -> {no_pub, del, no_ack}; - ack -> {no_pub, no_del, ack} - end; - ({Pub, no_del, no_ack}) when Action == del -> - {Pub, del, no_ack}; - ({Pub, Del, no_ack}) when Action == ack -> - {Pub, Del, ack} - end, - array:set(RelSeq, Val, JEntries). - -maybe_flush_journal(State = #qistate { dirty_count = DCount, - max_journal_entries = MaxJournal }) - when DCount > MaxJournal -> - flush_journal(State); -maybe_flush_journal(State) -> - State. - -flush_journal(State = #qistate { segments = Segments }) -> - Segments1 = - segment_fold( - fun (#segment { unacked = 0, path = Path }, SegmentsN) -> - case filelib:is_file(Path) of - true -> ok = file:delete(Path); - false -> ok - end, - SegmentsN; - (#segment {} = Segment, SegmentsN) -> - segment_store(append_journal_to_segment(Segment), SegmentsN) - end, segments_new(), Segments), - {JournalHdl, State1} = - get_journal_handle(State #qistate { segments = Segments1 }), - ok = file_handle_cache:clear(JournalHdl), - notify_sync(State1 #qistate { dirty_count = 0 }). - -append_journal_to_segment(#segment { journal_entries = JEntries, - path = Path } = Segment) -> - case array:sparse_size(JEntries) of - 0 -> Segment; - _ -> {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - array:sparse_foldl(fun write_entry_to_segment/3, Hdl, JEntries), - ok = file_handle_cache:close(Hdl), - Segment #segment { journal_entries = array_new() } - end. - -get_journal_handle(State = #qistate { journal_handle = undefined, - dir = Dir }) -> - Path = filename:join(Dir, ?JOURNAL_FILENAME), - ok = filelib:ensure_dir(Path), - {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - {Hdl, State #qistate { journal_handle = Hdl }}; -get_journal_handle(State = #qistate { journal_handle = Hdl }) -> - {Hdl, State}. - -%% Loading Journal. This isn't idempotent and will mess up the counts -%% if you call it more than once on the same state. Assumes the counts -%% are 0 to start with. -load_journal(State) -> - {JournalHdl, State1} = get_journal_handle(State), - {ok, 0} = file_handle_cache:position(JournalHdl, 0), - load_journal_entries(State1). - -%% ditto -recover_journal(State) -> - State1 = #qistate { segments = Segments } = load_journal(State), - Segments1 = - segment_map( - fun (Segment = #segment { journal_entries = JEntries, - unacked = UnackedCountInJournal }) -> - %% We want to keep ack'd entries in so that we can - %% remove them if duplicates are in the journal. The - %% counts here are purely from the segment itself. - {SegEntries, UnackedCountInSeg} = load_segment(true, Segment), - {JEntries1, UnackedCountDuplicates} = - journal_minus_segment(JEntries, SegEntries), - Segment #segment { journal_entries = JEntries1, - unacked = (UnackedCountInJournal + - UnackedCountInSeg - - UnackedCountDuplicates) } - end, Segments), - State1 #qistate { segments = Segments1 }. - -load_journal_entries(State = #qistate { journal_handle = Hdl }) -> - case file_handle_cache:read(Hdl, ?SEQ_BYTES) of - {ok, <>} -> - case Prefix of - ?DEL_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, del, State)); - ?ACK_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, ack, State)); - _ -> - case read_pub_record_body(Hdl) of - {Guid, MsgProps} -> - Publish = {Guid, MsgProps, - case Prefix of - ?PUB_PERSIST_JPREFIX -> true; - ?PUB_TRANS_JPREFIX -> false - end}, - load_journal_entries( - add_to_journal(SeqId, Publish, State)); - _ErrOrEoF -> %% err, we've lost at least a publish - State - end - end; - _ErrOrEoF -> State - end. - -deliver_or_ack(_Kind, [], State) -> - State; -deliver_or_ack(Kind, SeqIds, State) -> - JPrefix = case Kind of ack -> ?ACK_JPREFIX; del -> ?DEL_JPREFIX end, - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, - [<> || SeqId <- SeqIds]), - maybe_flush_journal(lists:foldl(fun (SeqId, StateN) -> - add_to_journal(SeqId, Kind, StateN) - end, State1, SeqIds)). - -sync_if(false, State) -> - State; -sync_if(_Bool, State = #qistate { journal_handle = undefined }) -> - State; -sync_if(true, State = #qistate { journal_handle = JournalHdl }) -> - ok = file_handle_cache:sync(JournalHdl), - notify_sync(State). - -notify_sync(State = #qistate { unsynced_guids = UG, on_sync = OnSyncFun }) -> - OnSyncFun(gb_sets:from_list(UG)), - State #qistate { unsynced_guids = [] }. - -%%---------------------------------------------------------------------------- -%% segment manipulation -%%---------------------------------------------------------------------------- - -seq_id_to_seg_and_rel_seq_id(SeqId) -> - { SeqId div ?SEGMENT_ENTRY_COUNT, SeqId rem ?SEGMENT_ENTRY_COUNT }. - -reconstruct_seq_id(Seg, RelSeq) -> - (Seg * ?SEGMENT_ENTRY_COUNT) + RelSeq. - -all_segment_nums(#qistate { dir = Dir, segments = Segments }) -> - lists:sort( - sets:to_list( - lists:foldl( - fun (SegName, Set) -> - sets:add_element( - list_to_integer( - lists:takewhile(fun (C) -> $0 =< C andalso C =< $9 end, - SegName)), Set) - end, sets:from_list(segment_nums(Segments)), - filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)))). - -segment_find_or_new(Seg, Dir, Segments) -> - case segment_find(Seg, Segments) of - {ok, Segment} -> Segment; - error -> SegName = integer_to_list(Seg) ++ ?SEGMENT_EXTENSION, - Path = filename:join(Dir, SegName), - #segment { num = Seg, - path = Path, - journal_entries = array_new(), - unacked = 0 } - end. - -segment_find(Seg, {_Segments, [Segment = #segment { num = Seg } |_]}) -> - {ok, Segment}; %% 1 or (2, matches head) -segment_find(Seg, {_Segments, [_, Segment = #segment { num = Seg }]}) -> - {ok, Segment}; %% 2, matches tail -segment_find(Seg, {Segments, _}) -> %% no match - dict:find(Seg, Segments). - -segment_store(Segment = #segment { num = Seg }, %% 1 or (2, matches head) - {Segments, [#segment { num = Seg } | Tail]}) -> - {Segments, [Segment | Tail]}; -segment_store(Segment = #segment { num = Seg }, %% 2, matches tail - {Segments, [SegmentA, #segment { num = Seg }]}) -> - {Segments, [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, {Segments, []}) -> - {dict:erase(Seg, Segments), [Segment]}; -segment_store(Segment = #segment { num = Seg }, {Segments, [SegmentA]}) -> - {dict:erase(Seg, Segments), [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, - {Segments, [SegmentA, SegmentB]}) -> - {dict:store(SegmentB#segment.num, SegmentB, dict:erase(Seg, Segments)), - [Segment, SegmentA]}. - -segment_fold(Fun, Acc, {Segments, CachedSegments}) -> - dict:fold(fun (_Seg, Segment, Acc1) -> Fun(Segment, Acc1) end, - lists:foldl(Fun, Acc, CachedSegments), Segments). - -segment_map(Fun, {Segments, CachedSegments}) -> - {dict:map(fun (_Seg, Segment) -> Fun(Segment) end, Segments), - lists:map(Fun, CachedSegments)}. - -segment_nums({Segments, CachedSegments}) -> - lists:map(fun (#segment { num = Num }) -> Num end, CachedSegments) ++ - dict:fetch_keys(Segments). - -segments_new() -> - {dict:new(), []}. - -write_entry_to_segment(_RelSeq, {?PUB, del, ack}, Hdl) -> - Hdl; -write_entry_to_segment(RelSeq, {Pub, Del, Ack}, Hdl) -> - ok = case Pub of - no_pub -> - ok; - {Guid, MsgProps, IsPersistent} -> - file_handle_cache:append( - Hdl, [<>, - create_pub_record_body(Guid, MsgProps)]) - end, - ok = case {Del, Ack} of - {no_del, no_ack} -> - ok; - _ -> - Binary = <>, - file_handle_cache:append( - Hdl, case {Del, Ack} of - {del, ack} -> [Binary, Binary]; - _ -> Binary - end) - end, - Hdl. - -read_bounded_segment(Seg, {StartSeg, StartRelSeq}, {EndSeg, EndRelSeq}, - {Messages, Segments}, Dir) -> - Segment = segment_find_or_new(Seg, Dir, Segments), - {segment_entries_foldr( - fun (RelSeq, {{Guid, MsgProps, IsPersistent}, IsDelivered, no_ack}, Acc) - when (Seg > StartSeg orelse StartRelSeq =< RelSeq) andalso - (Seg < EndSeg orelse EndRelSeq >= RelSeq) -> - [ {Guid, reconstruct_seq_id(StartSeg, RelSeq), MsgProps, - IsPersistent, IsDelivered == del} | Acc ]; - (_RelSeq, _Value, Acc) -> - Acc - end, Messages, Segment), - segment_store(Segment, Segments)}. - -segment_entries_foldr(Fun, Init, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, _UnackedCount} = load_segment(false, Segment), - {SegEntries1, _UnackedCountD} = segment_plus_journal(SegEntries, JEntries), - array:sparse_foldr(Fun, Init, SegEntries1). - -%% Loading segments -%% -%% Does not do any combining with the journal at all. -load_segment(KeepAcked, #segment { path = Path }) -> - case filelib:is_file(Path) of - false -> {array_new(), 0}; - true -> {ok, Hdl} = file_handle_cache:open(Path, ?READ_AHEAD_MODE, []), - {ok, 0} = file_handle_cache:position(Hdl, bof), - Res = load_segment_entries(KeepAcked, Hdl, array_new(), 0), - ok = file_handle_cache:close(Hdl), - Res - end. - -load_segment_entries(KeepAcked, Hdl, SegEntries, UnackedCount) -> - case file_handle_cache:read(Hdl, ?REL_SEQ_ONLY_ENTRY_LENGTH_BYTES) of - {ok, <>} -> - {Guid, MsgProps} = read_pub_record_body(Hdl), - Obj = {{Guid, MsgProps, 1 == IsPersistentNum}, no_del, no_ack}, - SegEntries1 = array:set(RelSeq, Obj, SegEntries), - load_segment_entries(KeepAcked, Hdl, SegEntries1, - UnackedCount + 1); - {ok, <>} -> - {UnackedCountDelta, SegEntries1} = - case array:get(RelSeq, SegEntries) of - {Pub, no_del, no_ack} -> - { 0, array:set(RelSeq, {Pub, del, no_ack}, SegEntries)}; - {Pub, del, no_ack} when KeepAcked -> - {-1, array:set(RelSeq, {Pub, del, ack}, SegEntries)}; - {_Pub, del, no_ack} -> - {-1, array:reset(RelSeq, SegEntries)} - end, - load_segment_entries(KeepAcked, Hdl, SegEntries1, - UnackedCount + UnackedCountDelta); - _ErrOrEoF -> - {SegEntries, UnackedCount} - end. - -array_new() -> - array:new([{default, undefined}, fixed, {size, ?SEGMENT_ENTRY_COUNT}]). - -bool_to_int(true ) -> 1; -bool_to_int(false) -> 0. - -%%---------------------------------------------------------------------------- -%% journal & segment combination -%%---------------------------------------------------------------------------- - -%% Combine what we have just read from a segment file with what we're -%% holding for that segment in memory. There must be no duplicates. -segment_plus_journal(SegEntries, JEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {SegEntriesOut, AdditionalUnacked}) -> - SegEntry = array:get(RelSeq, SegEntriesOut), - {Obj, AdditionalUnackedDelta} = - segment_plus_journal1(SegEntry, JObj), - {case Obj of - undefined -> array:reset(RelSeq, SegEntriesOut); - _ -> array:set(RelSeq, Obj, SegEntriesOut) - end, - AdditionalUnacked + AdditionalUnackedDelta} - end, {SegEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item which we may be adding to (for items only in the journal), -%% modifying in (bits in both), or, when returning 'undefined', -%% erasing from (ack in journal, not segment) the segment array. The -%% other element of the tuple is the delta for AdditionalUnacked. -segment_plus_journal1(undefined, {?PUB, no_del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, ack}) -> - {undefined, 0}; - -segment_plus_journal1({?PUB = Pub, no_del, no_ack}, {no_pub, del, no_ack}) -> - {{Pub, del, no_ack}, 0}; -segment_plus_journal1({?PUB, no_del, no_ack}, {no_pub, del, ack}) -> - {undefined, -1}; -segment_plus_journal1({?PUB, del, no_ack}, {no_pub, no_del, ack}) -> - {undefined, -1}. - -%% Remove from the journal entries for a segment, items that are -%% duplicates of entries found in the segment itself. Used on start up -%% to clean up the journal. -journal_minus_segment(JEntries, SegEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {JEntriesOut, UnackedRemoved}) -> - SegEntry = array:get(RelSeq, SegEntries), - {Obj, UnackedRemovedDelta} = - journal_minus_segment1(JObj, SegEntry), - {case Obj of - keep -> JEntriesOut; - undefined -> array:reset(RelSeq, JEntriesOut); - _ -> array:set(RelSeq, Obj, JEntriesOut) - end, - UnackedRemoved + UnackedRemovedDelta} - end, {JEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item we are adding to or modifying in the (initially fresh) journal -%% array. If the item is 'undefined' we leave the journal array -%% alone. The other element of the tuple is the deltas for -%% UnackedRemoved. - -%% Both the same. Must be at least the publish -journal_minus_segment1({?PUB, _Del, no_ack} = Obj, Obj) -> - {undefined, 1}; -journal_minus_segment1({?PUB, _Del, ack} = Obj, Obj) -> - {undefined, 0}; - -%% Just publish in journal -journal_minus_segment1({?PUB, no_del, no_ack}, undefined) -> - {keep, 0}; - -%% Publish and deliver in journal -journal_minus_segment1({?PUB, del, no_ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, no_ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, no_ack}, 1}; - -%% Publish, deliver and ack in journal -journal_minus_segment1({?PUB, del, ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, ack}, 1}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, del, no_ack}) -> - {{no_pub, no_del, ack}, 1}; - -%% Just deliver in journal -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, del, no_ack}) -> - {undefined, 0}; - -%% Just ack in journal -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, ack}) -> - {undefined, -1}; - -%% Deliver and ack in journal -journal_minus_segment1({no_pub, del, ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, no_ack}) -> - {{no_pub, no_del, ack}, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, ack}) -> - {undefined, -1}. - -%%---------------------------------------------------------------------------- -%% upgrade -%%---------------------------------------------------------------------------- - -add_queue_ttl() -> - foreach_queue_index({fun add_queue_ttl_journal/1, - fun add_queue_ttl_segment/1}). - -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {[<>, Guid, - expiry_to_binary(undefined)], Rest}; -add_queue_ttl_journal(_) -> - stop. - -add_queue_ttl_segment(<>) -> - {[<>, Guid, expiry_to_binary(undefined)], Rest}; -add_queue_ttl_segment(<>) -> - {<>, - Rest}; -add_queue_ttl_segment(_) -> - stop. - -%%---------------------------------------------------------------------------- - -foreach_queue_index(Funs) -> - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> - transform_queue(filename:join(QueuesDir, QueueDirName), - Gatherer, Funs) - end) - end || QueueDirName <- QueueDirNames], - empty = gatherer:out(Gatherer), - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer). - -transform_queue(Dir, Gatherer, {JournalFun, SegmentFun}) -> - ok = transform_file(filename:join(Dir, ?JOURNAL_FILENAME), JournalFun), - [ok = transform_file(filename:join(Dir, Seg), SegmentFun) - || Seg <- filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)], - ok = gatherer:finish(Gatherer). - -transform_file(Path, Fun) -> - PathTmp = Path ++ ".upgrade", - case filelib:file_size(Path) of - 0 -> ok; - Size -> {ok, PathTmpHdl} = - file_handle_cache:open(PathTmp, ?WRITE_MODE, - [{write_buffer, infinity}]), - - {ok, PathHdl} = file_handle_cache:open( - Path, [{read_ahead, Size} | ?READ_MODE], []), - {ok, Content} = file_handle_cache:read(PathHdl, Size), - ok = file_handle_cache:close(PathHdl), - - ok = drive_transform_fun(Fun, PathTmpHdl, Content), - - ok = file_handle_cache:close(PathTmpHdl), - ok = file:rename(PathTmp, Path) - end. - -drive_transform_fun(Fun, Hdl, Contents) -> - case Fun(Contents) of - stop -> ok; - {Output, Contents1} -> ok = file_handle_cache:append(Hdl, Output), - drive_transform_fun(Fun, Hdl, Contents1) - end. diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl deleted file mode 100644 index 1781469a..00000000 --- a/src/rabbit_reader.erl +++ /dev/null @@ -1,1004 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_reader). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([start_link/3, info_keys/0, info/1, info/2, shutdown/2]). - --export([system_continue/3, system_terminate/4, system_code_change/4]). - --export([init/4, mainloop/2]). - --export([conserve_memory/2, server_properties/0]). - --export([process_channel_frame/5]). %% used by erlang-client - --export([emit_stats/1]). - --define(HANDSHAKE_TIMEOUT, 10). --define(NORMAL_TIMEOUT, 3). --define(CLOSING_TIMEOUT, 1). --define(CHANNEL_TERMINATION_TIMEOUT, 3). --define(SILENT_CLOSE_DELAY, 3). --define(FRAME_MAX, 131072). %% set to zero once QPid fix their negotiation - -%--------------------------------------------------------------------------- - --record(v1, {parent, sock, connection, callback, recv_length, recv_ref, - connection_state, queue_collector, heartbeater, stats_timer, - channel_sup_sup_pid, start_heartbeat_fun, auth_mechanism, - auth_state}). - --define(STATISTICS_KEYS, [pid, recv_oct, recv_cnt, send_oct, send_cnt, - send_pend, state, channels]). - --define(CREATION_EVENT_KEYS, [pid, address, port, peer_address, peer_port, ssl, - peer_cert_subject, peer_cert_issuer, - peer_cert_validity, auth_mechanism, - ssl_protocol, ssl_key_exchange, - ssl_cipher, ssl_hash, - protocol, user, vhost, timeout, frame_max, - client_properties]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%% connection lifecycle -%% -%% all state transitions and terminations are marked with *...* -%% -%% The lifecycle begins with: start handshake_timeout timer, *pre-init* -%% -%% all states, unless specified otherwise: -%% socket error -> *exit* -%% socket close -> *throw* -%% writer send failure -> *throw* -%% forced termination -> *exit* -%% handshake_timeout -> *throw* -%% pre-init: -%% receive protocol header -> send connection.start, *starting* -%% starting: -%% receive connection.start_ok -> *securing* -%% securing: -%% check authentication credentials -%% if authentication success -> send connection.tune, *tuning* -%% if more challenge needed -> send connection.secure, -%% receive connection.secure_ok *securing* -%% otherwise send close, *exit* -%% tuning: -%% receive connection.tune_ok -> start heartbeats, *opening* -%% opening: -%% receive connection.open -> send connection.open_ok, *running* -%% running: -%% receive connection.close -> -%% tell channels to terminate gracefully -%% if no channels then send connection.close_ok, start -%% terminate_connection timer, *closed* -%% else *closing* -%% forced termination -%% -> wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *exit* -%% channel exit with hard error -%% -> log error, wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *closed* -%% channel exit with soft error -%% -> log error, mark channel as closing, *running* -%% handshake_timeout -> ignore, *running* -%% heartbeat timeout -> *throw* -%% conserve_memory=true -> *blocking* -%% blocking: -%% conserve_memory=true -> *blocking* -%% conserve_memory=false -> *running* -%% receive a method frame for a content-bearing method -%% -> process, stop receiving, *blocked* -%% ...rest same as 'running' -%% blocked: -%% conserve_memory=true -> *blocked* -%% conserve_memory=false -> resume receiving, *running* -%% ...rest same as 'running' -%% closing: -%% socket close -> *terminate* -%% receive connection.close -> send connection.close_ok, -%% *closing* -%% receive frame -> ignore, *closing* -%% handshake_timeout -> ignore, *closing* -%% heartbeat timeout -> *throw* -%% channel exit with hard error -%% -> log error, wait for channels to terminate forcefully, start -%% terminate_connection timer, send close, *closed* -%% channel exit with soft error -%% -> log error, mark channel as closing -%% if last channel to exit then send connection.close_ok, -%% start terminate_connection timer, *closed* -%% else *closing* -%% channel exits normally -%% -> if last channel to exit then send connection.close_ok, -%% start terminate_connection timer, *closed* -%% closed: -%% socket close -> *terminate* -%% receive connection.close -> send connection.close_ok, -%% *closed* -%% receive connection.close_ok -> self() ! terminate_connection, -%% *closed* -%% receive frame -> ignore, *closed* -%% terminate_connection timeout -> *terminate* -%% handshake_timeout -> ignore, *closed* -%% heartbeat timeout -> *throw* -%% channel exit -> log error, *closed* -%% -%% -%% TODO: refactor the code so that the above is obvious - --define(IS_RUNNING(State), - (State#v1.connection_state =:= running orelse - State#v1.connection_state =:= blocking orelse - State#v1.connection_state =:= blocked)). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/3 :: (pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) -> - rabbit_types:ok(pid())). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(shutdown/2 :: (pid(), string()) -> 'ok'). --spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok'). --spec(server_properties/0 :: () -> rabbit_framing:amqp_table()). - -%% These specs only exists to add no_return() to keep dialyzer happy --spec(init/4 :: (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) - -> no_return()). --spec(start_connection/7 :: - (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun(), any(), - rabbit_net:socket(), - fun ((rabbit_net:socket()) -> - rabbit_types:ok_or_error2( - rabbit_net:socket(), any()))) -> no_return()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link(ChannelSupSupPid, Collector, StartHeartbeatFun) -> - {ok, proc_lib:spawn_link(?MODULE, init, [self(), ChannelSupSupPid, - Collector, StartHeartbeatFun])}. - -shutdown(Pid, Explanation) -> - gen_server:call(Pid, {shutdown, Explanation}, infinity). - -init(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun) -> - Deb = sys:debug_options([]), - receive - {go, Sock, SockTransform} -> - start_connection( - Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, Sock, - SockTransform) - end. - -system_continue(Parent, Deb, State) -> - ?MODULE:mainloop(Deb, State#v1{parent = Parent}). - -system_terminate(Reason, _Parent, _Deb, _State) -> - exit(Reason). - -system_code_change(Misc, _Module, _OldVsn, _Extra) -> - {ok, Misc}. - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -emit_stats(Pid) -> - gen_server:cast(Pid, emit_stats). - -conserve_memory(Pid, Conserve) -> - Pid ! {conserve_memory, Conserve}, - ok. - -server_properties() -> - {ok, Product} = application:get_key(rabbit, id), - {ok, Version} = application:get_key(rabbit, vsn), - - %% Get any configuration-specified server properties - {ok, RawConfigServerProps} = application:get_env(rabbit, - server_properties), - - %% Normalize the simplifed (2-tuple) and unsimplified (3-tuple) forms - %% from the config and merge them with the generated built-in properties - NormalizedConfigServerProps = - [case X of - {KeyAtom, Value} -> {list_to_binary(atom_to_list(KeyAtom)), - longstr, - list_to_binary(Value)}; - {BinKey, Type, Value} -> {BinKey, Type, Value} - end || X <- RawConfigServerProps ++ - [{product, Product}, - {version, Version}, - {platform, "Erlang/OTP"}, - {copyright, ?COPYRIGHT_MESSAGE}, - {information, ?INFORMATION_MESSAGE}]], - - %% Filter duplicated properties in favor of config file provided values - lists:usort(fun ({K1,_,_}, {K2,_,_}) -> K1 =< K2 end, - NormalizedConfigServerProps). - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -socket_op(Sock, Fun) -> - case Fun(Sock) of - {ok, Res} -> Res; - {error, Reason} -> rabbit_log:error("error on TCP connection ~p:~p~n", - [self(), Reason]), - rabbit_log:info("closing TCP connection ~p~n", - [self()]), - exit(normal) - end. - -start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, - Sock, SockTransform) -> - process_flag(trap_exit, true), - {PeerAddress, PeerPort} = socket_op(Sock, fun rabbit_net:peername/1), - PeerAddressS = rabbit_misc:ntoab(PeerAddress), - rabbit_log:info("starting TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - ClientSock = socket_op(Sock, SockTransform), - erlang:send_after(?HANDSHAKE_TIMEOUT * 1000, self(), - handshake_timeout), - try - mainloop(Deb, switch_callback( - #v1{parent = Parent, - sock = ClientSock, - connection = #connection{ - protocol = none, - user = none, - timeout_sec = ?HANDSHAKE_TIMEOUT, - frame_max = ?FRAME_MIN_SIZE, - vhost = none, - client_properties = none}, - callback = uninitialized_callback, - recv_length = 0, - recv_ref = none, - connection_state = pre_init, - queue_collector = Collector, - heartbeater = none, - stats_timer = - rabbit_event:init_stats_timer(), - channel_sup_sup_pid = ChannelSupSupPid, - start_heartbeat_fun = StartHeartbeatFun, - auth_mechanism = none, - auth_state = none - }, - handshake, 8)) - catch - Ex -> (if Ex == connection_closed_abruptly -> - fun rabbit_log:warning/2; - true -> - fun rabbit_log:error/2 - end)("exception on TCP connection ~p from ~s:~p~n~p~n", - [self(), PeerAddressS, PeerPort, Ex]) - after - rabbit_log:info("closing TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - %% We don't close the socket explicitly. The reader is the - %% controlling process and hence its termination will close - %% the socket. Furthermore, gen_tcp:close/1 waits for pending - %% output to be sent, which results in unnecessary delays. - %% - %% gen_tcp:close(ClientSock), - rabbit_event:notify(connection_closed, [{pid, self()}]) - end, - done. - -mainloop(Deb, State = #v1{parent = Parent, sock= Sock, recv_ref = Ref}) -> - receive - {inet_async, Sock, Ref, {ok, Data}} -> - mainloop(Deb, handle_input(State#v1.callback, Data, - State#v1{recv_ref = none})); - {inet_async, Sock, Ref, {error, closed}} -> - if State#v1.connection_state =:= closed -> - State; - true -> - throw(connection_closed_abruptly) - end; - {inet_async, Sock, Ref, {error, Reason}} -> - throw({inet_error, Reason}); - {conserve_memory, Conserve} -> - mainloop(Deb, internal_conserve_memory(Conserve, State)); - {'EXIT', Parent, Reason} -> - terminate(io_lib:format("broker forced connection closure " - "with reason '~w'", [Reason]), State), - %% this is what we are expected to do according to - %% http://www.erlang.org/doc/man/sys.html - %% - %% If we wanted to be *really* nice we should wait for a - %% while for clients to close the socket at their end, - %% just as we do in the ordinary error case. However, - %% since this termination is initiated by our parent it is - %% probably more important to exit quickly. - exit(Reason); - {channel_exit, _Channel, E = {writer, send_failed, _Error}} -> - throw(E); - {channel_exit, Channel, Reason} -> - mainloop(Deb, handle_exception(State, Channel, Reason)); - {'DOWN', _MRef, process, ChPid, Reason} -> - mainloop(Deb, handle_dependent_exit(ChPid, Reason, State)); - terminate_connection -> - State; - handshake_timeout -> - if ?IS_RUNNING(State) orelse - State#v1.connection_state =:= closing orelse - State#v1.connection_state =:= closed -> - mainloop(Deb, State); - true -> - throw({handshake_timeout, State#v1.callback}) - end; - timeout -> - case State#v1.connection_state of - closed -> mainloop(Deb, State); - S -> throw({timeout, S}) - end; - {'$gen_call', From, {shutdown, Explanation}} -> - {ForceTermination, NewState} = terminate(Explanation, State), - gen_server:reply(From, ok), - case ForceTermination of - force -> ok; - normal -> mainloop(Deb, NewState) - end; - {'$gen_call', From, info} -> - gen_server:reply(From, infos(?INFO_KEYS, State)), - mainloop(Deb, State); - {'$gen_call', From, {info, Items}} -> - gen_server:reply(From, try {ok, infos(Items, State)} - catch Error -> {error, Error} - end), - mainloop(Deb, State); - {'$gen_cast', emit_stats} -> - State1 = internal_emit_stats(State), - mainloop(Deb, State1); - {system, From, Request} -> - sys:handle_system_msg(Request, From, - Parent, ?MODULE, Deb, State); - Other -> - %% internal error -> something worth dying for - exit({unexpected_message, Other}) - end. - -switch_callback(State = #v1{connection_state = blocked, - heartbeater = Heartbeater}, Callback, Length) -> - ok = rabbit_heartbeat:pause_monitor(Heartbeater), - State#v1{callback = Callback, recv_length = Length, recv_ref = none}; -switch_callback(State, Callback, Length) -> - Ref = inet_op(fun () -> rabbit_net:async_recv( - State#v1.sock, Length, infinity) end), - State#v1{callback = Callback, recv_length = Length, recv_ref = Ref}. - -terminate(Explanation, State) when ?IS_RUNNING(State) -> - {normal, send_exception(State, 0, - rabbit_misc:amqp_error( - connection_forced, Explanation, [], none))}; -terminate(_Explanation, State) -> - {force, State}. - -internal_conserve_memory(true, State = #v1{connection_state = running}) -> - State#v1{connection_state = blocking}; -internal_conserve_memory(false, State = #v1{connection_state = blocking}) -> - State#v1{connection_state = running}; -internal_conserve_memory(false, State = #v1{connection_state = blocked, - heartbeater = Heartbeater, - callback = Callback, - recv_length = Length, - recv_ref = none}) -> - ok = rabbit_heartbeat:resume_monitor(Heartbeater), - switch_callback(State#v1{connection_state = running}, Callback, Length); -internal_conserve_memory(_Conserve, State) -> - State. - -close_connection(State = #v1{queue_collector = Collector, - connection = #connection{ - timeout_sec = TimeoutSec}}) -> - %% The spec says "Exclusive queues may only be accessed by the - %% current connection, and are deleted when that connection - %% closes." This does not strictly imply synchrony, but in - %% practice it seems to be what people assume. - rabbit_queue_collector:delete_all(Collector), - %% We terminate the connection after the specified interval, but - %% no later than ?CLOSING_TIMEOUT seconds. - TimeoutMillisec = - 1000 * if TimeoutSec > 0 andalso - TimeoutSec < ?CLOSING_TIMEOUT -> TimeoutSec; - true -> ?CLOSING_TIMEOUT - end, - erlang:send_after(TimeoutMillisec, self(), terminate_connection), - State#v1{connection_state = closed}. - -close_channel(Channel, State) -> - put({channel, Channel}, closing), - State. - -handle_dependent_exit(ChPid, Reason, State) -> - case termination_kind(Reason) of - controlled -> - erase({ch_pid, ChPid}), - maybe_close(State); - uncontrolled -> - case channel_cleanup(ChPid) of - undefined -> exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> maybe_close( - handle_exception(State, Channel, Reason)) - end - end. - -channel_cleanup(ChPid) -> - case get({ch_pid, ChPid}) of - undefined -> undefined; - Channel -> erase({channel, Channel}), - erase({ch_pid, ChPid}), - Channel - end. - -all_channels() -> [ChPid || {{ch_pid, ChPid}, _Channel} <- get()]. - -terminate_channels() -> - NChannels = - length([rabbit_channel:shutdown(ChPid) || ChPid <- all_channels()]), - if NChannels > 0 -> - Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, - TimerRef = erlang:send_after(Timeout, self(), cancel_wait), - wait_for_channel_termination(NChannels, TimerRef); - true -> ok - end. - -wait_for_channel_termination(0, TimerRef) -> - case erlang:cancel_timer(TimerRef) of - false -> receive - cancel_wait -> ok - end; - _ -> ok - end; - -wait_for_channel_termination(N, TimerRef) -> - receive - {'DOWN', _MRef, process, ChPid, Reason} -> - case channel_cleanup(ChPid) of - undefined -> - exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> - case termination_kind(Reason) of - controlled -> - ok; - uncontrolled -> - rabbit_log:error( - "connection ~p, channel ~p - " - "error while terminating:~n~p~n", - [self(), Channel, Reason]) - end, - wait_for_channel_termination(N-1, TimerRef) - end; - cancel_wait -> - exit(channel_termination_timeout) - end. - -maybe_close(State = #v1{connection_state = closing, - connection = #connection{protocol = Protocol}, - sock = Sock}) -> - case all_channels() of - [] -> - NewState = close_connection(State), - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - NewState; - _ -> State - end; -maybe_close(State) -> - State. - -termination_kind(normal) -> controlled; -termination_kind(_) -> uncontrolled. - -handle_frame(Type, 0, Payload, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}}) - when CS =:= closing; CS =:= closed -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - _Other -> State - end; -handle_frame(_Type, _Channel, _Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_frame(Type, 0, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, 0, Type, Payload}); - heartbeat -> State; - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - Other -> throw({unexpected_frame_on_channel0, Other}) - end; -handle_frame(Type, Channel, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, Channel, Type, Payload}); - heartbeat -> throw({unexpected_heartbeat_frame, Channel}); - AnalyzedFrame -> - case get({channel, Channel}) of - {ChPid, FramingState} -> - NewAState = process_channel_frame( - AnalyzedFrame, self(), - Channel, ChPid, FramingState), - put({channel, Channel}, {ChPid, NewAState}), - case AnalyzedFrame of - {method, 'channel.close', _} -> - erase({channel, Channel}), - State; - {method, MethodName, _} -> - case (State#v1.connection_state =:= blocking - andalso - Protocol:method_has_content(MethodName)) of - true -> State#v1{connection_state = blocked}; - false -> State - end; - _ -> - State - end; - closing -> - %% According to the spec, after sending a - %% channel.close we must ignore all frames except - %% channel.close and channel.close_ok. In the - %% event of a channel.close, we should send back a - %% channel.close_ok. - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - erase({channel, Channel}); - {method, 'channel.close', _} -> - %% We're already closing this channel, so - %% there's no cleanup to do (notify - %% queues, etc.) - ok = rabbit_writer:internal_send_command( - State#v1.sock, Channel, - #'channel.close_ok'{}, Protocol); - _ -> ok - end, - State; - undefined -> - case ?IS_RUNNING(State) of - true -> send_to_new_channel( - Channel, AnalyzedFrame, State); - false -> throw({channel_frame_while_starting, - Channel, State#v1.connection_state, - AnalyzedFrame}) - end - end - end. - -handle_input(frame_header, <>, State) -> - ensure_stats_timer( - switch_callback(State, {frame_payload, Type, Channel, PayloadSize}, - PayloadSize + 1)); - -handle_input({frame_payload, Type, Channel, PayloadSize}, - PayloadAndMarker, State) -> - case PayloadAndMarker of - <> -> - handle_frame(Type, Channel, Payload, - switch_callback(State, frame_header, 7)); - _ -> - throw({bad_payload, Type, Channel, PayloadSize, PayloadAndMarker}) - end; - -%% The two rules pertaining to version negotiation: -%% -%% * If the server cannot support the protocol specified in the -%% protocol header, it MUST respond with a valid protocol header and -%% then close the socket connection. -%% -%% * The server MUST provide a protocol version that is lower than or -%% equal to that requested by the client in the protocol header. -handle_input(handshake, <<"AMQP", 0, 0, 9, 1>>, State) -> - start_connection({0, 9, 1}, rabbit_framing_amqp_0_9_1, State); - -%% This is the protocol header for 0-9, which we can safely treat as -%% though it were 0-9-1. -handle_input(handshake, <<"AMQP", 1, 1, 0, 9>>, State) -> - start_connection({0, 9, 0}, rabbit_framing_amqp_0_9_1, State); - -%% This is what most clients send for 0-8. The 0-8 spec, confusingly, -%% defines the version as 8-0. -handle_input(handshake, <<"AMQP", 1, 1, 8, 0>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -%% The 0-8 spec as on the AMQP web site actually has this as the -%% protocol header; some libraries e.g., py-amqplib, send it when they -%% want 0-8. -handle_input(handshake, <<"AMQP", 1, 1, 9, 1>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -handle_input(handshake, <<"AMQP", A, B, C, D>>, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_version, A, B, C, D}); - -handle_input(handshake, Other, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_header, Other}); - -handle_input(Callback, Data, _State) -> - throw({bad_input, Callback, Data}). - -%% Offer a protocol version to the client. Connection.start only -%% includes a major and minor version number, Luckily 0-9 and 0-9-1 -%% are similar enough that clients will be happy with either. -start_connection({ProtocolMajor, ProtocolMinor, _ProtocolRevision}, - Protocol, - State = #v1{sock = Sock, connection = Connection}) -> - Start = #'connection.start'{ - version_major = ProtocolMajor, - version_minor = ProtocolMinor, - server_properties = server_properties(), - mechanisms = auth_mechanisms_binary(), - locales = <<"en_US">> }, - ok = send_on_channel0(Sock, Start, Protocol), - switch_callback(State#v1{connection = Connection#connection{ - timeout_sec = ?NORMAL_TIMEOUT, - protocol = Protocol}, - connection_state = starting}, - frame_header, 7). - -refuse_connection(Sock, Exception) -> - ok = inet_op(fun () -> rabbit_net:send(Sock, <<"AMQP",0,0,9,1>>) end), - throw(Exception). - -ensure_stats_timer(State = #v1{stats_timer = StatsTimer, - connection_state = running}) -> - Self = self(), - State#v1{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(Self) end)}; -ensure_stats_timer(State) -> - State. - -%%-------------------------------------------------------------------------- - -handle_method0(MethodName, FieldsBin, - State = #v1{connection = #connection{protocol = Protocol}}) -> - HandleException = - fun(R) -> - case ?IS_RUNNING(State) of - true -> send_exception(State, 0, R); - %% We don't trust the client at this point - force - %% them to wait for a bit so they can't DOS us with - %% repeated failed logins etc. - false -> timer:sleep(?SILENT_CLOSE_DELAY * 1000), - throw({channel0_error, State#v1.connection_state, R}) - end - end, - try - handle_method0(Protocol:decode_method_fields(MethodName, FieldsBin), - State) - catch exit:#amqp_error{method = none} = Reason -> - HandleException(Reason#amqp_error{method = MethodName}); - Type:Reason -> - HandleException({Type, Reason, MethodName, erlang:get_stacktrace()}) - end. - -handle_method0(#'connection.start_ok'{mechanism = Mechanism, - response = Response, - client_properties = ClientProperties}, - State0 = #v1{connection_state = starting, - connection = Connection, - sock = Sock}) -> - AuthMechanism = auth_mechanism_to_module(Mechanism), - State = State0#v1{auth_mechanism = AuthMechanism, - auth_state = AuthMechanism:init(Sock), - connection_state = securing, - connection = - Connection#connection{ - client_properties = ClientProperties}}, - auth_phase(Response, State); - -handle_method0(#'connection.secure_ok'{response = Response}, - State = #v1{connection_state = securing}) -> - auth_phase(Response, State); - -handle_method0(#'connection.tune_ok'{frame_max = FrameMax, - heartbeat = ClientHeartbeat}, - State = #v1{connection_state = tuning, - connection = Connection, - sock = Sock, - start_heartbeat_fun = SHF}) -> - if (FrameMax /= 0) and (FrameMax < ?FRAME_MIN_SIZE) -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w < ~w min size", - [FrameMax, ?FRAME_MIN_SIZE]); - (?FRAME_MAX /= 0) and (FrameMax > ?FRAME_MAX) -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w > ~w max size", - [FrameMax, ?FRAME_MAX]); - true -> - Frame = rabbit_binary_generator:build_heartbeat_frame(), - SendFun = fun() -> catch rabbit_net:send(Sock, Frame) end, - Parent = self(), - ReceiveFun = fun() -> Parent ! timeout end, - Heartbeater = SHF(Sock, ClientHeartbeat, SendFun, - ClientHeartbeat, ReceiveFun), - State#v1{connection_state = opening, - connection = Connection#connection{ - timeout_sec = ClientHeartbeat, - frame_max = FrameMax}, - heartbeater = Heartbeater} - end; - -handle_method0(#'connection.open'{virtual_host = VHostPath}, - - State = #v1{connection_state = opening, - connection = Connection = #connection{ - user = User, - protocol = Protocol}, - sock = Sock, - stats_timer = StatsTimer}) -> - ok = rabbit_access_control:check_vhost_access(User, VHostPath), - NewConnection = Connection#connection{vhost = VHostPath}, - ok = send_on_channel0(Sock, #'connection.open_ok'{}, Protocol), - State1 = internal_conserve_memory( - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - State#v1{connection_state = running, - connection = NewConnection}), - rabbit_event:notify(connection_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State1) end), - State1; -handle_method0(#'connection.close'{}, State) when ?IS_RUNNING(State) -> - lists:foreach(fun rabbit_channel:shutdown/1, all_channels()), - maybe_close(State#v1{connection_state = closing}); -handle_method0(#'connection.close'{}, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}, - sock = Sock}) - when CS =:= closing; CS =:= closed -> - %% We're already closed or closing, so we don't need to cleanup - %% anything. - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - State; -handle_method0(#'connection.close_ok'{}, - State = #v1{connection_state = closed}) -> - self() ! terminate_connection, - State; -handle_method0(_Method, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_method0(_Method, #v1{connection_state = S}) -> - rabbit_misc:protocol_error( - channel_error, "unexpected method in connection state ~w", [S]). - -send_on_channel0(Sock, Method, Protocol) -> - ok = rabbit_writer:internal_send_command(Sock, 0, Method, Protocol). - -auth_mechanism_to_module(TypeBin) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown authentication mechanism '~s'", - [TypeBin]); - T -> - case {lists:member(T, auth_mechanisms()), - rabbit_registry:lookup_module(auth_mechanism, T)} of - {true, {ok, Module}} -> - Module; - _ -> - rabbit_misc:protocol_error( - command_invalid, - "invalid authentication mechanism '~s'", [T]) - end - end. - -auth_mechanisms() -> - {ok, Configured} = application:get_env(auth_mechanisms), - [Name || {Name, _Module} <- rabbit_registry:lookup_all(auth_mechanism), - lists:member(Name, Configured)]. - -auth_mechanisms_binary() -> - list_to_binary( - string:join( - [atom_to_list(A) || A <- auth_mechanisms()], " ")). - -auth_phase(Response, - State = #v1{auth_mechanism = AuthMechanism, - auth_state = AuthState, - connection = Connection = - #connection{protocol = Protocol}, - sock = Sock}) -> - case AuthMechanism:handle_response(Response, AuthState) of - {refused, Msg, Args} -> - rabbit_misc:protocol_error( - access_refused, "~s login refused: ~s", - [proplists:get_value(name, AuthMechanism:description()), - io_lib:format(Msg, Args)]); - {protocol_error, Msg, Args} -> - rabbit_misc:protocol_error(syntax_error, Msg, Args); - {challenge, Challenge, AuthState1} -> - Secure = #'connection.secure'{challenge = Challenge}, - ok = send_on_channel0(Sock, Secure, Protocol), - State#v1{auth_state = AuthState1}; - {ok, User} -> - Tune = #'connection.tune'{channel_max = 0, - frame_max = ?FRAME_MAX, - heartbeat = 0}, - ok = send_on_channel0(Sock, Tune, Protocol), - State#v1{connection_state = tuning, - connection = Connection#connection{user = User}} - end. - -%%-------------------------------------------------------------------------- - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, #v1{}) -> - self(); -i(address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({A, _}) -> A end, Sock); -i(port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({_, P}) -> P end, Sock); -i(peer_address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({A, _}) -> A end, Sock); -i(peer_port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({_, P}) -> P end, Sock); -i(ssl, #v1{sock = Sock}) -> - rabbit_net:is_ssl(Sock); -i(ssl_protocol, #v1{sock = Sock}) -> - ssl_info(fun ({P, _}) -> P end, Sock); -i(ssl_key_exchange, #v1{sock = Sock}) -> - ssl_info(fun ({_, {K, _, _}}) -> K end, Sock); -i(ssl_cipher, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, C, _}}) -> C end, Sock); -i(ssl_hash, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, _, H}}) -> H end, Sock); -i(peer_cert_issuer, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_issuer/1, Sock); -i(peer_cert_subject, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_subject/1, Sock); -i(peer_cert_validity, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_validity/1, Sock); -i(SockStat, #v1{sock = Sock}) when SockStat =:= recv_oct; - SockStat =:= recv_cnt; - SockStat =:= send_oct; - SockStat =:= send_cnt; - SockStat =:= send_pend -> - socket_info(fun () -> rabbit_net:getstat(Sock, [SockStat]) end, - fun ([{_, I}]) -> I end); -i(state, #v1{connection_state = S}) -> - S; -i(channels, #v1{}) -> - length(all_channels()); -i(protocol, #v1{connection = #connection{protocol = none}}) -> - none; -i(protocol, #v1{connection = #connection{protocol = Protocol}}) -> - Protocol:version(); -i(auth_mechanism, #v1{auth_mechanism = none}) -> - none; -i(auth_mechanism, #v1{auth_mechanism = Mechanism}) -> - proplists:get_value(name, Mechanism:description()); -i(user, #v1{connection = #connection{user = #user{username = Username}}}) -> - Username; -i(user, #v1{connection = #connection{user = none}}) -> - ''; -i(vhost, #v1{connection = #connection{vhost = VHost}}) -> - VHost; -i(timeout, #v1{connection = #connection{timeout_sec = Timeout}}) -> - Timeout; -i(frame_max, #v1{connection = #connection{frame_max = FrameMax}}) -> - FrameMax; -i(client_properties, #v1{connection = #connection{ - client_properties = ClientProperties}}) -> - ClientProperties; -i(Item, #v1{}) -> - throw({bad_argument, Item}). - -socket_info(Get, Select, Sock) -> - socket_info(fun() -> Get(Sock) end, Select). - -socket_info(Get, Select) -> - case Get() of - {ok, T} -> Select(T); - {error, _} -> '' - end. - -ssl_info(F, Sock) -> - %% The first ok form is R14 - %% The second is R13 - the extra term is exportability (by inspection, - %% the docs are wrong) - case rabbit_net:ssl_info(Sock) of - nossl -> ''; - {error, _} -> ''; - {ok, {P, {K, C, H}}} -> F({P, {K, C, H}}); - {ok, {P, {K, C, H, _}}} -> F({P, {K, C, H}}) - end. - -cert_info(F, Sock) -> - case rabbit_net:peercert(Sock) of - nossl -> ''; - {error, no_peercert} -> ''; - {ok, Cert} -> list_to_binary(F(Cert)) - end. - -%%-------------------------------------------------------------------------- - -send_to_new_channel(Channel, AnalyzedFrame, State) -> - #v1{sock = Sock, queue_collector = Collector, - channel_sup_sup_pid = ChanSupSup, - connection = #connection{protocol = Protocol, - frame_max = FrameMax, - user = User, - vhost = VHost}} = State, - {ok, _ChSupPid, {ChPid, AState}} = - rabbit_channel_sup_sup:start_channel( - ChanSupSup, {tcp, Protocol, Sock, Channel, FrameMax, self(), User, - VHost, Collector}), - erlang:monitor(process, ChPid), - NewAState = process_channel_frame(AnalyzedFrame, self(), - Channel, ChPid, AState), - put({channel, Channel}, {ChPid, NewAState}), - put({ch_pid, ChPid}, Channel), - State. - -process_channel_frame(Frame, ErrPid, Channel, ChPid, AState) -> - case rabbit_command_assembler:process(Frame, AState) of - {ok, NewAState} -> NewAState; - {ok, Method, NewAState} -> rabbit_channel:do(ChPid, Method), - NewAState; - {ok, Method, Content, NewAState} -> rabbit_channel:do(ChPid, - Method, Content), - NewAState; - {error, Reason} -> ErrPid ! {channel_exit, Channel, - Reason}, - AState - end. - -log_channel_error(ConnectionState, Channel, Reason) -> - rabbit_log:error("connection ~p (~p), channel ~p - error:~n~p~n", - [self(), ConnectionState, Channel, Reason]). - -handle_exception(State = #v1{connection_state = closed}, Channel, Reason) -> - log_channel_error(closed, Channel, Reason), - State; -handle_exception(State = #v1{connection_state = CS}, Channel, Reason) -> - log_channel_error(CS, Channel, Reason), - send_exception(State, Channel, Reason). - -send_exception(State = #v1{connection = #connection{protocol = Protocol}}, - Channel, Reason) -> - {ShouldClose, CloseChannel, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - NewState = case ShouldClose of - true -> terminate_channels(), - close_connection(State); - false -> close_channel(Channel, State) - end, - ok = rabbit_writer:internal_send_command( - NewState#v1.sock, CloseChannel, CloseMethod, Protocol), - NewState. - -internal_emit_stats(State = #v1{stats_timer = StatsTimer}) -> - rabbit_event:notify(connection_stats, infos(?STATISTICS_KEYS, State)), - State#v1{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}. diff --git a/src/rabbit_registry.erl b/src/rabbit_registry.erl deleted file mode 100644 index 795413aa..00000000 --- a/src/rabbit_registry.erl +++ /dev/null @@ -1,124 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_registry). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --export([register/3, binary_to_type/1, lookup_module/2, lookup_all/1]). - --define(SERVER, ?MODULE). --define(ETS_NAME, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/3 :: (atom(), binary(), atom()) -> 'ok'). --spec(binary_to_type/1 :: - (binary()) -> atom() | rabbit_types:error('not_found')). --spec(lookup_module/2 :: - (atom(), atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). --spec(lookup_all/1 :: (atom()) -> [{atom(), atom()}]). - --endif. - -%%--------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -register(Class, TypeName, ModuleName) -> - gen_server:call(?SERVER, {register, Class, TypeName, ModuleName}). - -%% This is used with user-supplied arguments (e.g., on exchange -%% declare), so we restrict it to existing atoms only. This means it -%% can throw a badarg, indicating that the type cannot have been -%% registered. -binary_to_type(TypeBin) when is_binary(TypeBin) -> - case catch list_to_existing_atom(binary_to_list(TypeBin)) of - {'EXIT', {badarg, _}} -> {error, not_found}; - TypeAtom -> TypeAtom - end. - -lookup_module(Class, T) when is_atom(T) -> - case ets:lookup(?ETS_NAME, {Class, T}) of - [{_, Module}] -> - {ok, Module}; - [] -> - {error, not_found} - end. - -lookup_all(Class) -> - [{K, V} || [K, V] <- ets:match(?ETS_NAME, {{Class, '$1'}, '$2'})]. - -%%--------------------------------------------------------------------------- - -internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> - list_to_atom(binary_to_list(TypeBin)). - -internal_register(Class, TypeName, ModuleName) - when is_atom(Class), is_binary(TypeName), is_atom(ModuleName) -> - ok = sanity_check_module(class_module(Class), ModuleName), - true = ets:insert(?ETS_NAME, - {{Class, internal_binary_to_type(TypeName)}, ModuleName}), - ok. - -sanity_check_module(ClassModule, Module) -> - case catch lists:member(ClassModule, - lists:flatten( - [Bs || {Attr, Bs} <- - Module:module_info(attributes), - Attr =:= behavior orelse - Attr =:= behaviour])) of - {'EXIT', {undef, _}} -> {error, not_module}; - false -> {error, {not_type, ClassModule}}; - true -> ok - end. - -class_module(exchange) -> rabbit_exchange_type; -class_module(auth_mechanism) -> rabbit_auth_mechanism. - -%%--------------------------------------------------------------------------- - -init([]) -> - ?ETS_NAME = ets:new(?ETS_NAME, [protected, set, named_table]), - {ok, none}. - -handle_call({register, Class, TypeName, ModuleName}, _From, State) -> - ok = internal_register(Class, TypeName, ModuleName), - {reply, ok, State}; - -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_restartable_sup.erl b/src/rabbit_restartable_sup.erl deleted file mode 100644 index 0491244b..00000000 --- a/src/rabbit_restartable_sup.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_restartable_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -start_link(Name, {_M, _F, _A} = Fun) -> - supervisor:start_link({local, Name}, ?MODULE, [Fun]). - -init([{Mod, _F, _A} = Fun]) -> - {ok, {{one_for_one, 10, 10}, - [{Mod, Fun, transient, ?MAX_WAIT, worker, [Mod]}]}}. diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl deleted file mode 100644 index 692d2473..00000000 --- a/src/rabbit_router.erl +++ /dev/null @@ -1,108 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_router). --include_lib("stdlib/include/qlc.hrl"). --include("rabbit.hrl"). - --export([deliver/2, match_bindings/2, match_routing_key/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([routing_key/0, routing_result/0, match_result/0]). - --type(routing_key() :: binary()). --type(routing_result() :: 'routed' | 'unroutable' | 'not_delivered'). --type(qpids() :: [pid()]). --type(match_result() :: [rabbit_types:binding_destination()]). - --spec(deliver/2 :: ([rabbit_amqqueue:name()], rabbit_types:delivery()) -> - {routing_result(), qpids()}). --spec(match_bindings/2 :: (rabbit_types:binding_source(), - fun ((rabbit_types:binding()) -> boolean())) -> - match_result()). --spec(match_routing_key/2 :: (rabbit_types:binding_source(), - routing_key() | '_') -> match_result()). - --endif. - -%%---------------------------------------------------------------------------- - -deliver(QNames, Delivery = #delivery{mandatory = false, - immediate = false}) -> - %% optimisation: when Mandatory = false and Immediate = false, - %% rabbit_amqqueue:deliver will deliver the message to the queue - %% process asynchronously, and return true, which means all the - %% QPids will always be returned. It is therefore safe to use a - %% fire-and-forget cast here and return the QPids - the semantics - %% is preserved. This scales much better than the non-immediate - %% case below. - QPids = lookup_qpids(QNames), - delegate:invoke_no_result( - QPids, fun (Pid) -> rabbit_amqqueue:deliver(Pid, Delivery) end), - {routed, QPids}; - -deliver(QNames, Delivery = #delivery{mandatory = Mandatory, - immediate = Immediate}) -> - QPids = lookup_qpids(QNames), - {Success, _} = - delegate:invoke(QPids, - fun (Pid) -> - rabbit_amqqueue:deliver(Pid, Delivery) - end), - {Routed, Handled} = - lists:foldl(fun fold_deliveries/2, {false, []}, Success), - check_delivery(Mandatory, Immediate, {Routed, Handled}). - - -%% TODO: Maybe this should be handled by a cursor instead. -%% TODO: This causes a full scan for each entry with the same source -match_bindings(SrcName, Match) -> - Query = qlc:q([DestinationName || - #route{binding = Binding = #binding{ - source = SrcName1, - destination = DestinationName}} <- - mnesia:table(rabbit_route), - SrcName == SrcName1, - Match(Binding)]), - mnesia:async_dirty(fun qlc:e/1, [Query]). - -match_routing_key(SrcName, RoutingKey) -> - MatchHead = #route{binding = #binding{source = SrcName, - destination = '$1', - key = RoutingKey, - _ = '_'}}, - mnesia:dirty_select(rabbit_route, [{MatchHead, [], ['$1']}]). - -%%-------------------------------------------------------------------- - -fold_deliveries({Pid, true},{_, Handled}) -> {true, [Pid|Handled]}; -fold_deliveries({_, false},{_, Handled}) -> {true, Handled}. - -%% check_delivery(Mandatory, Immediate, {WasRouted, QPids}) -check_delivery(true, _ , {false, []}) -> {unroutable, []}; -check_delivery(_ , true, {_ , []}) -> {not_delivered, []}; -check_delivery(_ , _ , {_ , Qs}) -> {routed, Qs}. - -lookup_qpids(QNames) -> - lists:foldl(fun (QName, QPids) -> - case mnesia:dirty_read({rabbit_queue, QName}) of - [#amqqueue{pid = QPid}] -> [QPid | QPids]; - [] -> QPids - end - end, [], QNames). diff --git a/src/rabbit_sasl_report_file_h.erl b/src/rabbit_sasl_report_file_h.erl deleted file mode 100644 index 6f3c5c75..00000000 --- a/src/rabbit_sasl_report_file_h.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sasl_report_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_sasl_report_file_h is a wrapper around the sasl_report_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers and performing -%% log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "sasl log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without -%% doing any log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init({File, sasl_error_logger_type()}). - -handle_event(Event, State) -> - sasl_report_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - sasl_report_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - sasl_report_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - sasl_report_file_h:terminate(Reason, State). - -code_change(_OldVsn, State, _Extra) -> - %% There is no sasl_report_file_h:code_change/3 - {ok, State}. - -%%---------------------------------------------------------------------- - -sasl_error_logger_type() -> - case application:get_env(sasl, errlog_type) of - {ok, error} -> error; - {ok, progress} -> progress; - {ok, all} -> all; - {ok, Bad} -> throw({error, {wrong_errlog_type, Bad}}); - _ -> all - end. diff --git a/src/rabbit_ssl.erl b/src/rabbit_ssl.erl deleted file mode 100644 index e831ee51..00000000 --- a/src/rabbit_ssl.erl +++ /dev/null @@ -1,173 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_ssl). - --include("rabbit.hrl"). - --include_lib("public_key/include/public_key.hrl"). - --export([peer_cert_issuer/1, peer_cert_subject/1, peer_cert_validity/1]). --export([peer_cert_subject_item/2]). - -%%-------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([certificate/0]). - --type(certificate() :: binary()). - --spec(peer_cert_issuer/1 :: (certificate()) -> string()). --spec(peer_cert_subject/1 :: (certificate()) -> string()). --spec(peer_cert_validity/1 :: (certificate()) -> string()). --spec(peer_cert_subject_item/2 :: - (certificate(), tuple()) -> string() | 'not_found'). - --endif. - -%%-------------------------------------------------------------------------- -%% High-level functions used by reader -%%-------------------------------------------------------------------------- - -%% Return a string describing the certificate's issuer. -peer_cert_issuer(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - issuer = Issuer }}) -> - format_rdn_sequence(Issuer) - end, Cert). - -%% Return a string describing the certificate's subject, as per RFC4514. -peer_cert_subject(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - format_rdn_sequence(Subject) - end, Cert). - -%% Return a part of the certificate's subject. -peer_cert_subject_item(Cert, Type) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - find_by_type(Type, Subject) - end, Cert). - -%% Return a string describing the certificate's validity. -peer_cert_validity(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - validity = {'Validity', Start, End} }}) -> - lists:flatten( - io_lib:format("~s - ~s", [format_asn1_value(Start), - format_asn1_value(End)])) - end, Cert). - -%%-------------------------------------------------------------------------- - -cert_info(F, Cert) -> - F(case public_key:pkix_decode_cert(Cert, otp) of - {ok, DecCert} -> DecCert; %%pre R14B - DecCert -> DecCert %%R14B onwards - end). - -find_by_type(Type, {rdnSequence, RDNs}) -> - case [V || #'AttributeTypeAndValue'{type = T, value = V} - <- lists:flatten(RDNs), - T == Type] of - [{printableString, S}] -> S; - [] -> not_found - end. - -%%-------------------------------------------------------------------------- -%% Formatting functions -%%-------------------------------------------------------------------------- - -%% Format and rdnSequence as a RFC4514 subject string. -format_rdn_sequence({rdnSequence, Seq}) -> - string:join(lists:reverse([format_complex_rdn(RDN) || RDN <- Seq]), ","). - -%% Format an RDN set. -format_complex_rdn(RDNs) -> - string:join([format_rdn(RDN) || RDN <- RDNs], "+"). - -%% Format an RDN. If the type name is unknown, use the dotted decimal -%% representation. See RFC4514, section 2.3. -format_rdn(#'AttributeTypeAndValue'{type = T, value = V}) -> - FV = escape_rdn_value(format_asn1_value(V)), - Fmts = [{?'id-at-surname' , "SN"}, - {?'id-at-givenName' , "GIVENNAME"}, - {?'id-at-initials' , "INITIALS"}, - {?'id-at-generationQualifier' , "GENERATIONQUALIFIER"}, - {?'id-at-commonName' , "CN"}, - {?'id-at-localityName' , "L"}, - {?'id-at-stateOrProvinceName' , "ST"}, - {?'id-at-organizationName' , "O"}, - {?'id-at-organizationalUnitName' , "OU"}, - {?'id-at-title' , "TITLE"}, - {?'id-at-countryName' , "C"}, - {?'id-at-serialNumber' , "SERIALNUMBER"}, - {?'id-at-pseudonym' , "PSEUDONYM"}, - {?'id-domainComponent' , "DC"}, - {?'id-emailAddress' , "EMAILADDRESS"}, - {?'street-address' , "STREET"}], - case proplists:lookup(T, Fmts) of - {_, Fmt} -> - io_lib:format(Fmt ++ "=~s", [FV]); - none when is_tuple(T) -> - TypeL = [io_lib:format("~w", [X]) || X <- tuple_to_list(T)], - io_lib:format("~s:~s", [string:join(TypeL, "."), FV]); - none -> - io_lib:format("~p:~s", [T, FV]) - end. - -%% Escape a string as per RFC4514. -escape_rdn_value(V) -> - escape_rdn_value(V, start). - -escape_rdn_value([], _) -> - []; -escape_rdn_value([C | S], start) when C =:= $ ; C =:= $# -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value(S, start) -> - escape_rdn_value(S, middle); -escape_rdn_value([$ ], middle) -> - [$\\, $ ]; -escape_rdn_value([C | S], middle) when C =:= $"; C =:= $+; C =:= $,; C =:= $;; - C =:= $<; C =:= $>; C =:= $\\ -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value([C | S], middle) when C < 32 ; C =:= 127 -> - %% only U+0000 needs escaping, but for display purposes it's handy - %% to escape all non-printable chars - lists:flatten(io_lib:format("\\~2.16.0B", [C])) ++ - escape_rdn_value(S, middle); -escape_rdn_value([C | S], middle) -> - [C | escape_rdn_value(S, middle)]. - -%% Get the string representation of an OTPCertificate field. -format_asn1_value({ST, S}) when ST =:= teletexString; ST =:= printableString; - ST =:= universalString; ST =:= utf8String; - ST =:= bmpString -> - if is_binary(S) -> binary_to_list(S); - true -> S - end; -format_asn1_value({utcTime, [Y1, Y2, M1, M2, D1, D2, H1, H2, - Min1, Min2, S1, S2, $Z]}) -> - io_lib:format("20~c~c-~c~c-~c~cT~c~c:~c~c:~c~cZ", - [Y1, Y2, M1, M2, D1, D2, H1, H2, Min1, Min2, S1, S2]); -format_asn1_value(V) -> - io_lib:format("~p", [V]). diff --git a/src/rabbit_sup.erl b/src/rabbit_sup.erl deleted file mode 100644 index 508b127e..00000000 --- a/src/rabbit_sup.erl +++ /dev/null @@ -1,64 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sup). - --behaviour(supervisor). - --export([start_link/0, start_child/1, start_child/2, start_child/3, - start_restartable_child/1, start_restartable_child/2, stop_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Mod) -> - start_child(Mod, []). - -start_child(Mod, Args) -> - start_child(Mod, Mod, Args). - -start_child(ChildId, Mod, Args) -> - {ok, _} = supervisor:start_child(?SERVER, - {ChildId, {Mod, start_link, Args}, - transient, ?MAX_WAIT, worker, [Mod]}), - ok. - -start_restartable_child(Mod) -> - start_restartable_child(Mod, []). - -start_restartable_child(Mod, Args) -> - Name = list_to_atom(atom_to_list(Mod) ++ "_sup"), - {ok, _} = supervisor:start_child( - ?SERVER, - {Name, {rabbit_restartable_sup, start_link, - [Name, {Mod, start_link, Args}]}, - transient, infinity, supervisor, [rabbit_restartable_sup]}), - ok. - -stop_child(ChildId) -> - case supervisor:terminate_child(?SERVER, ChildId) of - ok -> supervisor:delete_child(?SERVER, ChildId); - E -> E - end. - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl deleted file mode 100644 index f3af1129..00000000 --- a/src/rabbit_tests.erl +++ /dev/null @@ -1,2324 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests). - --compile([export_all]). - --export([all_tests/0, test_parsing/0]). - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). --include_lib("kernel/include/file.hrl"). - --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). --define(CLEANUP_QUEUE_NAME, <<"cleanup-queue">>). - -test_content_prop_roundtrip(Datum, Binary) -> - Types = [element(1, E) || E <- Datum], - Values = [element(2, E) || E <- Datum], - Values = rabbit_binary_parser:parse_properties(Types, Binary), %% assertion - Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion - -all_tests() -> - application:set_env(rabbit, file_handles_high_watermark, 10, infinity), - ok = file_handle_cache:set_limit(10), - passed = test_file_handle_cache(), - passed = test_backing_queue(), - passed = test_priority_queue(), - passed = test_bpqueue(), - passed = test_pg_local(), - passed = test_unfold(), - passed = test_supervisor_delayed_restart(), - passed = test_parsing(), - passed = test_content_framing(), - passed = test_content_transcoding(), - passed = test_topic_matching(), - passed = test_log_management(), - passed = test_app_management(), - passed = test_log_management_during_startup(), - passed = test_statistics(), - passed = test_option_parser(), - passed = test_cluster_management(), - passed = test_user_management(), - passed = test_server_status(), - passed = maybe_run_cluster_dependent_tests(), - passed = test_configurable_server_properties(), - passed. - -maybe_run_cluster_dependent_tests() -> - SecondaryNode = rabbit_misc:makenode("hare"), - - case net_adm:ping(SecondaryNode) of - pong -> passed = run_cluster_dependent_tests(SecondaryNode); - pang -> io:format("Skipping cluster dependent tests with node ~p~n", - [SecondaryNode]) - end, - passed. - -run_cluster_dependent_tests(SecondaryNode) -> - SecondaryNodeS = atom_to_list(SecondaryNode), - - ok = control_action(stop_app, []), - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - - io:format("Running cluster dependent tests with node ~p~n", [SecondaryNode]), - passed = test_delegates_async(SecondaryNode), - passed = test_delegates_sync(SecondaryNode), - passed = test_queue_cleanup(SecondaryNode), - - %% we now run the tests remotely, so that code coverage on the - %% local node picks up more of the delegate - Node = node(), - Self = self(), - Remote = spawn(SecondaryNode, - fun () -> Rs = [ test_delegates_async(Node), - test_delegates_sync(Node), - test_queue_cleanup(Node) ], - Self ! {self(), Rs} - end), - receive - {Remote, Result} -> - Result = [passed, passed, passed] - after 2000 -> - throw(timeout) - end, - - passed. - -test_priority_queue() -> - - false = priority_queue:is_queue(not_a_queue), - - %% empty Q - Q = priority_queue:new(), - {true, true, 0, [], []} = test_priority_queue(Q), - - %% 1-4 element no-priority Q - true = lists:all(fun (X) -> X =:= passed end, - lists:map(fun test_simple_n_element_queue/1, - lists:seq(1, 4))), - - %% 1-element priority Q - Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), - - %% 2-element same-priority Q - Q2 = priority_queue:in(bar, 1, Q1), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q2), - - %% 2-element different-priority Q - Q3 = priority_queue:in(bar, 2, Q1), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q3), - - %% 1-element negative priority Q - Q4 = priority_queue:in(foo, -1, priority_queue:new()), - {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - - %% merge 2 * 2-element multi-different-priority Qs - Q11 = priority_queue:join(Q6, Q5), - {true, false, 4, [{1, bar}, {0, foo}, {0, foo}, {0, bar}], - [bar, foo, foo, bar]} = test_priority_queue(Q11), - - %% and the other way around - Q12 = priority_queue:join(Q5, Q6), - {true, false, 4, [{1, bar}, {0, foo}, {0, bar}, {0, foo}], - [bar, foo, bar, foo]} = test_priority_queue(Q12), - - %% merge with negative priorities - Q13 = priority_queue:join(Q4, Q5), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q13), - - %% and the other way around - Q14 = priority_queue:join(Q5, Q4), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q14), - - %% joins with empty queues: - Q1 = priority_queue:join(Q, Q1), - Q1 = priority_queue:join(Q1, Q), - - %% insert with priority into non-empty zero-priority queue - Q15 = priority_queue:in(baz, 1, Q5), - {true, false, 3, [{1, baz}, {0, foo}, {0, bar}], [baz, foo, bar]} = - test_priority_queue(Q15), - - passed. - -priority_queue_in_all(Q, L) -> - lists:foldl(fun (X, Acc) -> priority_queue:in(X, Acc) end, Q, L). - -priority_queue_out_all(Q) -> - case priority_queue:out(Q) of - {empty, _} -> []; - {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] - end. - -test_priority_queue(Q) -> - {priority_queue:is_queue(Q), - priority_queue:is_empty(Q), - priority_queue:len(Q), - priority_queue:to_list(Q), - priority_queue_out_all(Q)}. - -test_bpqueue() -> - Q = bpqueue:new(), - true = bpqueue:is_empty(Q), - 0 = bpqueue:len(Q), - [] = bpqueue:to_list(Q), - - Q1 = bpqueue_test(fun bpqueue:in/3, fun bpqueue:out/1, - fun bpqueue:to_list/1, - fun bpqueue:foldl/3, fun bpqueue:map_fold_filter_l/4), - Q2 = bpqueue_test(fun bpqueue:in_r/3, fun bpqueue:out_r/1, - fun (QR) -> lists:reverse( - [{P, lists:reverse(L)} || - {P, L} <- bpqueue:to_list(QR)]) - end, - fun bpqueue:foldr/3, fun bpqueue:map_fold_filter_r/4), - - [{foo, [1, 2]}, {bar, [3]}] = bpqueue:to_list(bpqueue:join(Q, Q1)), - [{bar, [3]}, {foo, [2, 1]}] = bpqueue:to_list(bpqueue:join(Q2, Q)), - [{foo, [1, 2]}, {bar, [3, 3]}, {foo, [2,1]}] = - bpqueue:to_list(bpqueue:join(Q1, Q2)), - - [{foo, [1, 2]}, {bar, [3]}, {foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list(bpqueue:join(Q1, Q1)), - - [{foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list( - bpqueue:from_list( - [{x, []}, {foo, [1]}, {y, []}, {foo, [2]}, {bar, [3]}, {z, []}])), - - [{undefined, [a]}] = bpqueue:to_list(bpqueue:from_list([{undefined, [a]}])), - - {4, [a,b,c,d]} = - bpqueue:foldl( - fun (Prefix, Value, {Prefix, Acc}) -> - {Prefix + 1, [Value | Acc]} - end, - {0, []}, bpqueue:from_list([{0,[d]}, {1,[c]}, {2,[b]}, {3,[a]}])), - - [{bar,3}, {foo,2}, {foo,1}] = - bpqueue:foldr(fun (P, V, I) -> [{P,V} | I] end, [], Q2), - - BPQL = [{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], - BPQ = bpqueue:from_list(BPQL), - - %% no effect - {BPQL, 0} = bpqueue_mffl([none], {none, []}, BPQ), - {BPQL, 0} = bpqueue_mffl([foo,bar], {none, [1]}, BPQ), - {BPQL, 0} = bpqueue_mffl([bar], {none, [3]}, BPQ), - {BPQL, 0} = bpqueue_mffr([bar], {foo, [5]}, BPQ), - - %% process 1 item - {[{foo,[-1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([foo,bar], {foo, [2]}, BPQ), - {[{foo,[1,2,2]}, {bar,[-3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([bar], {bar, [4]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,-7]}], 1} = - bpqueue_mffr([foo,bar], {foo, [6]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4]}, {baz,[-5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffr([bar], {baz, [4]}, BPQ), - - %% change prefix - {[{bar,[-1,-2,-2,-3,-4,-5,-5,-6,-7]}], 9} = - bpqueue_mffl([foo,bar], {bar, []}, BPQ), - {[{bar,[-1,-2,-2,3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {bar, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6]}, {foo,[7]}], 5} = - bpqueue_mffl([foo], {bar, [7]}, BPQ), - {[{foo,[1,2,2,-3,-4]}, {bar,[5]}, {foo,[5,6,7]}], 2} = - bpqueue_mffl([bar], {foo, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6,-7]}], 6} = - bpqueue_mffl([foo], {bar, []}, BPQ), - {[{foo,[1,2,2,-3,-4,-5,5,6,7]}], 3} = - bpqueue_mffl([bar], {foo, []}, BPQ), - - %% edge cases - {[{foo,[-1,-2,-2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {foo, [5]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[-5,-6,-7]}], 3} = - bpqueue_mffr([foo], {foo, [2]}, BPQ), - - passed. - -bpqueue_test(In, Out, List, Fold, MapFoldFilter) -> - Q = bpqueue:new(), - {empty, _Q} = Out(Q), - - ok = Fold(fun (Prefix, Value, ok) -> {error, Prefix, Value} end, ok, Q), - {Q1M, 0} = MapFoldFilter(fun(_P) -> throw(explosion) end, - fun(_V, _N) -> throw(explosion) end, 0, Q), - [] = bpqueue:to_list(Q1M), - - Q1 = In(bar, 3, In(foo, 2, In(foo, 1, Q))), - false = bpqueue:is_empty(Q1), - 3 = bpqueue:len(Q1), - [{foo, [1, 2]}, {bar, [3]}] = List(Q1), - - {{value, foo, 1}, Q3} = Out(Q1), - {{value, foo, 2}, Q4} = Out(Q3), - {{value, bar, 3}, _Q5} = Out(Q4), - - F = fun (QN) -> - MapFoldFilter(fun (foo) -> true; - (_) -> false - end, - fun (2, _Num) -> stop; - (V, Num) -> {bar, -V, V - Num} end, - 0, QN) - end, - {Q6, 0} = F(Q), - [] = bpqueue:to_list(Q6), - {Q7, 1} = F(Q1), - [{bar, [-1]}, {foo, [2]}, {bar, [3]}] = List(Q7), - - Q1. - -bpqueue_mffl(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_l/4, FF1A, FF2A, BPQ). - -bpqueue_mffr(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_r/4, FF1A, FF2A, BPQ). - -bpqueue_mff(Fold, FF1A, FF2A, BPQ) -> - FF1 = fun (Prefixes) -> - fun (P) -> lists:member(P, Prefixes) end - end, - FF2 = fun ({Prefix, Stoppers}) -> - fun (Val, Num) -> - case lists:member(Val, Stoppers) of - true -> stop; - false -> {Prefix, -Val, 1 + Num} - end - end - end, - Queue_to_list = fun ({LHS, RHS}) -> {bpqueue:to_list(LHS), RHS} end, - - Queue_to_list(Fold(FF1(FF1A), FF2(FF2A), 0, BPQ)). - -test_simple_n_element_queue(N) -> - Items = lists:seq(1, N), - Q = priority_queue_in_all(priority_queue:new(), Items), - ToListRes = [{0, X} || X <- Items], - {true, false, N, ToListRes, Items} = test_priority_queue(Q), - passed. - -test_pg_local() -> - [P, Q] = [spawn(fun () -> receive X -> X end end) || _ <- [x, x]], - check_pg_local(ok, [], []), - check_pg_local(pg_local:join(a, P), [P], []), - check_pg_local(pg_local:join(b, P), [P], [P]), - check_pg_local(pg_local:join(a, P), [P, P], [P]), - check_pg_local(pg_local:join(a, Q), [P, P, Q], [P]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(a, P), [P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(b, P), [P, Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - [begin X ! done, - Ref = erlang:monitor(process, X), - receive {'DOWN', Ref, process, X, _Info} -> ok end - end || X <- [P, Q]], - check_pg_local(ok, [], []), - passed. - -check_pg_local(ok, APids, BPids) -> - ok = pg_local:sync(), - [true, true] = [lists:sort(Pids) == lists:sort(pg_local:get_members(Key)) || - {Key, Pids} <- [{a, APids}, {b, BPids}]]. - -test_unfold() -> - {[], test} = rabbit_misc:unfold(fun (_V) -> false end, test), - List = lists:seq(2,20,2), - {List, 0} = rabbit_misc:unfold(fun (0) -> false; - (N) -> {true, N*2, N-1} - end, 10), - passed. - -test_parsing() -> - passed = test_content_properties(), - passed = test_field_values(), - passed. - -test_content_properties() -> - test_content_prop_roundtrip([], <<0, 0>>), - test_content_prop_roundtrip([{bit, true}, {bit, false}, {bit, true}, {bit, false}], - <<16#A0, 0>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {bit, true}, {octet, undefined}, - {bit, true}], - <<16#E8,0,123>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {octet, 123}, {bit, true}], - <<16#F0,0,123,123>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, <<"hi">>}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#F8,0,2,"hi",16#D4,16#31>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, undefined}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#B8,0,16#D4,16#31>>), - test_content_prop_roundtrip([{table, [{<<"a signedint">>, signedint, 12345678}, - {<<"a longstr">>, longstr, <<"yes please">>}, - {<<"a decimal">>, decimal, {123, 12345678}}, - {<<"a timestamp">>, timestamp, 123456789012345}, - {<<"a nested table">>, table, - [{<<"one">>, signedint, 1}, - {<<"two">>, signedint, 2}]}]}], - << - % property-flags - 16#8000:16, - - % property-list: - - % table - 117:32, % table length in bytes - - 11,"a signedint", % name - "I",12345678:32, % type and value - - 9,"a longstr", - "S",10:32,"yes please", - - 9,"a decimal", - "D",123,12345678:32, - - 11,"a timestamp", - "T", 123456789012345:64, - - 14,"a nested table", - "F", - 18:32, - - 3,"one", - "I",1:32, - - 3,"two", - "I",2:32 >>), - case catch rabbit_binary_parser:parse_properties([bit, bit, bit, bit], <<16#A0,0,1>>) of - {'EXIT', content_properties_binary_overflow} -> passed; - V -> exit({got_success_but_expected_failure, V}) - end. - -test_field_values() -> - %% FIXME this does not test inexact numbers (double and float) yet, - %% because they won't pass the equality assertions - test_content_prop_roundtrip( - [{table, [{<<"longstr">>, longstr, <<"Here is a long string">>}, - {<<"signedint">>, signedint, 12345}, - {<<"decimal">>, decimal, {3, 123456}}, - {<<"timestamp">>, timestamp, 109876543209876}, - {<<"table">>, table, [{<<"one">>, signedint, 54321}, - {<<"two">>, longstr, <<"A long string">>}]}, - {<<"byte">>, byte, 255}, - {<<"long">>, long, 1234567890}, - {<<"short">>, short, 655}, - {<<"bool">>, bool, true}, - {<<"binary">>, binary, <<"a binary string">>}, - {<<"void">>, void, undefined}, - {<<"array">>, array, [{signedint, 54321}, - {longstr, <<"A long string">>}]} - - ]}], - << - % property-flags - 16#8000:16, - % table length in bytes - 228:32, - - 7,"longstr", "S", 21:32, "Here is a long string", % = 34 - 9,"signedint", "I", 12345:32/signed, % + 15 = 49 - 7,"decimal", "D", 3, 123456:32, % + 14 = 63 - 9,"timestamp", "T", 109876543209876:64, % + 19 = 82 - 5,"table", "F", 31:32, % length of table % + 11 = 93 - 3,"one", "I", 54321:32, % + 9 = 102 - 3,"two", "S", 13:32, "A long string",% + 22 = 124 - 4,"byte", "b", 255:8, % + 7 = 131 - 4,"long", "l", 1234567890:64, % + 14 = 145 - 5,"short", "s", 655:16, % + 9 = 154 - 4,"bool", "t", 1, % + 7 = 161 - 6,"binary", "x", 15:32, "a binary string", % + 27 = 188 - 4,"void", "V", % + 6 = 194 - 5,"array", "A", 23:32, % + 11 = 205 - "I", 54321:32, % + 5 = 210 - "S", 13:32, "A long string" % + 18 = 228 - >>), - passed. - -%% Test that content frames don't exceed frame-max -test_content_framing(FrameMax, BodyBin) -> - [Header | Frames] = - rabbit_binary_generator:build_simple_content_frames( - 1, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, BodyBin), - rabbit_framing_amqp_0_9_1), - FrameMax, - rabbit_framing_amqp_0_9_1), - %% header is formatted correctly and the size is the total of the - %% fragments - <<_FrameHeader:7/binary, _ClassAndWeight:4/binary, - BodySize:64/unsigned, _Rest/binary>> = list_to_binary(Header), - BodySize = size(BodyBin), - true = lists:all( - fun (ContentFrame) -> - FrameBinary = list_to_binary(ContentFrame), - %% assert - <<_TypeAndChannel:3/binary, - Size:32/unsigned, _Payload:Size/binary, 16#CE>> = - FrameBinary, - size(FrameBinary) =< FrameMax - end, Frames), - passed. - -test_content_framing() -> - %% no content - passed = test_content_framing(4096, <<>>), - %% easily fit in one frame - passed = test_content_framing(4096, <<"Easy">>), - %% exactly one frame (empty frame = 8 bytes) - passed = test_content_framing(11, <<"One">>), - %% more than one frame - passed = test_content_framing(11, <<"More than one frame">>), - passed. - -test_content_transcoding() -> - %% there are no guarantees provided by 'clear' - it's just a hint - ClearDecoded = fun rabbit_binary_parser:clear_decoded_content/1, - ClearEncoded = fun rabbit_binary_generator:clear_encoded_content/1, - EnsureDecoded = - fun (C0) -> - C1 = rabbit_binary_parser:ensure_content_decoded(C0), - true = C1#content.properties =/= none, - C1 - end, - EnsureEncoded = - fun (Protocol) -> - fun (C0) -> - C1 = rabbit_binary_generator:ensure_content_encoded( - C0, Protocol), - true = C1#content.properties_bin =/= none, - C1 - end - end, - %% Beyond the assertions in Ensure*, the only testable guarantee - %% is that the operations should never fail. - %% - %% If we were using quickcheck we'd simply stuff all the above - %% into a generator for sequences of operations. In the absence of - %% quickcheck we pick particularly interesting sequences that: - %% - %% - execute every op twice since they are idempotent - %% - invoke clear_decoded, clear_encoded, decode and transcode - %% with one or both of decoded and encoded content present - [begin - sequence_with_content([Op]), - sequence_with_content([ClearEncoded, Op]), - sequence_with_content([ClearDecoded, Op]) - end || Op <- [ClearDecoded, ClearEncoded, EnsureDecoded, - EnsureEncoded(rabbit_framing_amqp_0_9_1), - EnsureEncoded(rabbit_framing_amqp_0_8)]], - passed. - -sequence_with_content(Sequence) -> - lists:foldl(fun (F, V) -> F(F(V)) end, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, <<>>), - rabbit_framing_amqp_0_9_1), - Sequence). - -test_topic_matching() -> - XName = #resource{virtual_host = <<"/">>, - kind = exchange, - name = <<"test_exchange">>}, - X = #exchange{name = XName, type = topic, durable = false, - auto_delete = false, arguments = []}, - %% create - rabbit_exchange_type_topic:validate(X), - exchange_op_callback(X, create, []), - - %% add some bindings - Bindings = lists:map( - fun ({Key, Q}) -> - #binding{source = XName, - key = list_to_binary(Key), - destination = #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)}} - end, [{"a.b.c", "t1"}, - {"a.*.c", "t2"}, - {"a.#.b", "t3"}, - {"a.b.b.c", "t4"}, - {"#", "t5"}, - {"#.#", "t6"}, - {"#.b", "t7"}, - {"*.*", "t8"}, - {"a.*", "t9"}, - {"*.b.c", "t10"}, - {"a.#", "t11"}, - {"a.#.#", "t12"}, - {"b.b.c", "t13"}, - {"a.b.b", "t14"}, - {"a.b", "t15"}, - {"b.c", "t16"}, - {"", "t17"}, - {"*.*.*", "t18"}, - {"vodka.martini", "t19"}, - {"a.b.c", "t20"}, - {"*.#", "t21"}, - {"#.*.#", "t22"}, - {"*.#.#", "t23"}, - {"#.#.#", "t24"}, - {"*", "t25"}, - {"#.b.#", "t26"}]), - lists:foreach(fun (B) -> exchange_op_callback(X, add_binding, [B]) end, - Bindings), - - %% test some matches - test_topic_expect_match(X, - [{"a.b.c", ["t1", "t2", "t5", "t6", "t10", "t11", "t12", - "t18", "t20", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b", ["t3", "t5", "t6", "t7", "t8", "t9", "t11", - "t12", "t15", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b.b", ["t3", "t5", "t6", "t7", "t11", "t12", "t14", - "t18", "t21", "t22", "t23", "t24", "t26"]}, - {"", ["t5", "t6", "t17", "t24"]}, - {"b.c.c", ["t5", "t6", "t18", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.a.a.a.a", ["t5", "t6", "t11", "t12", "t21", "t22", "t23", - "t24"]}, - {"vodka.gin", ["t5", "t6", "t8", "t21", "t22", "t23", - "t24"]}, - {"vodka.martini", ["t5", "t6", "t8", "t19", "t21", "t22", "t23", - "t24"]}, - {"b.b.c", ["t5", "t6", "t10", "t13", "t18", "t21", "t22", - "t23", "t24", "t26"]}, - {"nothing.here.at.all", ["t5", "t6", "t21", "t22", "t23", "t24"]}, - {"oneword", ["t5", "t6", "t21", "t22", "t23", "t24", - "t25"]}]), - - %% remove some bindings - RemovedBindings = [lists:nth(1, Bindings), lists:nth(5, Bindings), - lists:nth(11, Bindings), lists:nth(19, Bindings), - lists:nth(21, Bindings)], - exchange_op_callback(X, remove_bindings, [RemovedBindings]), - RemainingBindings = ordsets:to_list( - ordsets:subtract(ordsets:from_list(Bindings), - ordsets:from_list(RemovedBindings))), - - %% test some matches - test_topic_expect_match(X, - [{"a.b.c", ["t2", "t6", "t10", "t12", "t18", "t20", "t22", - "t23", "t24", "t26"]}, - {"a.b", ["t3", "t6", "t7", "t8", "t9", "t12", "t15", - "t22", "t23", "t24", "t26"]}, - {"a.b.b", ["t3", "t6", "t7", "t12", "t14", "t18", "t22", - "t23", "t24", "t26"]}, - {"", ["t6", "t17", "t24"]}, - {"b.c.c", ["t6", "t18", "t22", "t23", "t24", "t26"]}, - {"a.a.a.a.a", ["t6", "t12", "t22", "t23", "t24"]}, - {"vodka.gin", ["t6", "t8", "t22", "t23", "t24"]}, - {"vodka.martini", ["t6", "t8", "t22", "t23", "t24"]}, - {"b.b.c", ["t6", "t10", "t13", "t18", "t22", "t23", - "t24", "t26"]}, - {"nothing.here.at.all", ["t6", "t22", "t23", "t24"]}, - {"oneword", ["t6", "t22", "t23", "t24", "t25"]}]), - - %% remove the entire exchange - exchange_op_callback(X, delete, [RemainingBindings]), - %% none should match now - test_topic_expect_match(X, [{"a.b.c", []}, {"b.b.c", []}, {"", []}]), - passed. - -exchange_op_callback(X, Fun, ExtraArgs) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> rabbit_exchange:callback(X, Fun, [true, X] ++ ExtraArgs) end), - rabbit_exchange:callback(X, Fun, [false, X] ++ ExtraArgs). - -test_topic_expect_match(X, List) -> - lists:foreach( - fun ({Key, Expected}) -> - BinKey = list_to_binary(Key), - Res = rabbit_exchange_type_topic:route( - X, #delivery{message = #basic_message{routing_key = - BinKey}}), - ExpectedRes = lists:map( - fun (Q) -> #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)} - end, Expected), - true = (lists:usort(ExpectedRes) =:= lists:usort(Res)) - end, List). - -test_app_management() -> - %% starting, stopping, status - ok = control_action(stop_app, []), - ok = control_action(stop_app, []), - ok = control_action(status, []), - ok = control_action(start_app, []), - ok = control_action(start_app, []), - ok = control_action(status, []), - passed. - -test_log_management() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - Suffix = ".1", - - %% prepare basic logs - file:delete([MainLog, Suffix]), - file:delete([SaslLog, Suffix]), - - %% simple logs reopening - ok = control_action(rotate_logs, []), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% simple log rotation - ok = control_action(rotate_logs, [Suffix]), - [true, true] = non_empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% reopening logs with log rotation performed first - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = file:rename(MainLog, [MainLog, Suffix]), - ok = file:rename(SaslLog, [SaslLog, Suffix]), - ok = test_logs_working([MainLog, Suffix], [SaslLog, Suffix]), - ok = control_action(rotate_logs, []), - ok = test_logs_working(MainLog, SaslLog), - - %% log rotation on empty file - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = control_action(rotate_logs, [Suffix]), - [true, true] = empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - - %% original main log file is not writable - ok = make_files_non_writable([MainLog]), - {error, {cannot_rotate_main_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([MainLog], Suffix), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}]), - - %% original sasl log file is not writable - ok = make_files_non_writable([SaslLog]), - {error, {cannot_rotate_sasl_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([SaslLog], Suffix), - ok = add_log_handlers([{rabbit_sasl_report_file_h, SaslLog}]), - - %% logs with suffix are not writable - ok = control_action(rotate_logs, [Suffix]), - ok = make_files_non_writable([[MainLog, Suffix], [SaslLog, Suffix]]), - ok = control_action(rotate_logs, [Suffix]), - ok = test_logs_working(MainLog, SaslLog), - - %% original log files are not writable - ok = make_files_non_writable([MainLog, SaslLog]), - {error, {{cannot_rotate_main_logs, _}, - {cannot_rotate_sasl_logs, _}}} = control_action(rotate_logs, []), - - %% logging directed to tty (handlers were removed in last test) - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = application:set_env(kernel, error_logger, tty), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% rotate logs when logging is turned off - ok = application:set_env(sasl, sasl_error_logger, false), - ok = application:set_env(kernel, error_logger, silent), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% cleanup - ok = application:set_env(sasl, sasl_error_logger, {file, SaslLog}), - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}, - {rabbit_sasl_report_file_h, SaslLog}]), - passed. - -test_log_management_during_startup() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - - %% start application with simple tty logging - ok = control_action(stop_app, []), - ok = application:set_env(kernel, error_logger, tty), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = add_log_handlers([{error_logger_tty_h, []}, - {sasl_report_tty_h, []}]), - ok = control_action(start_app, []), - - %% start application with tty logging and - %% proper handlers not installed - ok = control_action(stop_app, []), - ok = error_logger:tty(false), - ok = delete_log_handlers([sasl_report_tty_h]), - ok = case catch control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_tty_no_handlers_test}); - {error, {cannot_log_to_tty, _, _}} -> ok - end, - - %% fix sasl logging - ok = application:set_env(sasl, sasl_error_logger, - {file, SaslLog}), - - %% start application with logging to non-existing directory - TmpLog = "/tmp/rabbit-tests/test.log", - delete_file(TmpLog), - ok = application:set_env(kernel, error_logger, {file, TmpLog}), - - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = control_action(start_app, []), - - %% start application with logging to directory with no - %% write permissions - TmpDir = "/tmp/rabbit-tests", - ok = set_permissions(TmpDir, 8#00400), - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_no_write_permission_dir_test}); - {error, {cannot_log_to_file, _, _}} -> ok - end, - - %% start application with logging to a subdirectory which - %% parent directory has no write permissions - TmpTestDir = "/tmp/rabbit-tests/no-permission/test/log", - ok = application:set_env(kernel, error_logger, {file, TmpTestDir}), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotatation_parent_dirs_test}); - {error, {cannot_log_to_file, _, - {error, {cannot_create_parent_dirs, _, eacces}}}} -> ok - end, - ok = set_permissions(TmpDir, 8#00700), - ok = set_permissions(TmpLog, 8#00600), - ok = delete_file(TmpLog), - ok = file:del_dir(TmpDir), - - %% start application with standard error_logger_file_h - %% handler not installed - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% start application with standard sasl handler not installed - %% and rabbit main log handler installed correctly - ok = delete_log_handlers([rabbit_sasl_report_file_h]), - ok = control_action(start_app, []), - passed. - -test_option_parser() -> - % command and arguments should just pass through - ok = check_get_options({["mock_command", "arg1", "arg2"], []}, - [], ["mock_command", "arg1", "arg2"]), - - % get flags - ok = check_get_options( - {["mock_command", "arg1"], [{"-f", true}, {"-f2", false}]}, - [{flag, "-f"}, {flag, "-f2"}], ["mock_command", "arg1", "-f"]), - - % get options - ok = check_get_options( - {["mock_command"], [{"-foo", "bar"}, {"-baz", "notbaz"}]}, - [{option, "-foo", "notfoo"}, {option, "-baz", "notbaz"}], - ["mock_command", "-foo", "bar"]), - - % shuffled and interleaved arguments and options - ok = check_get_options( - {["a1", "a2", "a3"], [{"-o1", "hello"}, {"-o2", "noto2"}, {"-f", true}]}, - [{option, "-o1", "noto1"}, {flag, "-f"}, {option, "-o2", "noto2"}], - ["-f", "a1", "-o1", "hello", "a2", "a3"]), - - passed. - -test_cluster_management() -> - - %% 'cluster' and 'reset' should only work if the app is stopped - {error, _} = control_action(cluster, []), - {error, _} = control_action(reset, []), - {error, _} = control_action(force_reset, []), - - ok = control_action(stop_app, []), - - %% various ways of creating a standalone node - NodeS = atom_to_list(node()), - ClusteringSequence = [[], - [NodeS], - ["invalid@invalid", NodeS], - [NodeS, "invalid@invalid"]], - - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - - %% convert a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% join a non-existing cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - SecondaryNode = rabbit_misc:makenode("hare"), - case net_adm:ping(SecondaryNode) of - pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", - [SecondaryNode]) - end, - - ok = control_action(start_app, []), - passed. - -test_cluster_management2(SecondaryNode) -> - NodeS = atom_to_list(node()), - SecondaryNodeS = atom_to_list(SecondaryNode), - - %% make a disk node - ok = control_action(reset, []), - ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - - %% join cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, [SecondaryNodeS, "invalid1@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% change cluster config while remaining in same cluster - ok = control_action(force_cluster, ["invalid2@invalid", SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join non-existing cluster as a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join empty cluster as a ram node - ok = control_action(cluster, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% turn ram node into disk node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% convert a disk node into a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% turn a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% NB: this will log an inconsistent_database error, which is harmless - %% Turning cover on / off is OK even if we're not in general using cover, - %% it just turns the engine on / off, doesn't actually log anything. - cover:stop([SecondaryNode]), - true = disconnect_node(SecondaryNode), - pong = net_adm:ping(SecondaryNode), - cover:start([SecondaryNode]), - - %% leaving a cluster as a ram node - ok = control_action(reset, []), - %% ...and as a disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(reset, []), - - %% attempt to leave cluster when no other node is alive - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, SecondaryNode, [], []), - ok = control_action(stop_app, []), - {error, {no_running_cluster_nodes, _, _}} = - control_action(reset, []), - - %% leave system clustered, with the secondary node as a ram node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(force_reset, SecondaryNode, [], []), - ok = control_action(cluster, SecondaryNode, [NodeS], []), - ok = control_action(start_app, SecondaryNode, [], []), - - passed. - -test_user_management() -> - - %% lots if stuff that should fail - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(change_password, ["foo", "baz"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - {error, {no_such_user, _}} = - control_action(set_permissions, ["foo", ".*", ".*", ".*"]), - {error, {no_such_user, _}} = - control_action(clear_permissions, ["foo"]), - {error, {no_such_user, _}} = - control_action(list_user_permissions, ["foo"]), - {error, {no_such_vhost, _}} = - control_action(list_permissions, [], [{"-p", "/testhost"}]), - {error, {invalid_regexp, _, _}} = - control_action(set_permissions, ["guest", "+foo", ".*", ".*"]), - - %% user creation - ok = control_action(add_user, ["foo", "bar"]), - {error, {user_already_exists, _}} = - control_action(add_user, ["foo", "bar"]), - ok = control_action(change_password, ["foo", "baz"]), - ok = control_action(set_admin, ["foo"]), - ok = control_action(clear_admin, ["foo"]), - ok = control_action(list_users, []), - - %% vhost creation - ok = control_action(add_vhost, ["/testhost"]), - {error, {vhost_already_exists, _}} = - control_action(add_vhost, ["/testhost"]), - ok = control_action(list_vhosts, []), - - %% user/vhost mapping - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_user_permissions, ["foo"]), - - %% user/vhost unmapping - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - - %% vhost deletion - ok = control_action(delete_vhost, ["/testhost"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - - %% deleting a populated vhost - ok = control_action(add_vhost, ["/testhost"]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(delete_vhost, ["/testhost"]), - - %% user deletion - ok = control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - - passed. - -test_server_status() -> - %% create a few things so there is some useful information to list - Writer = spawn(fun () -> receive shutdown -> ok end end), - {ok, Ch} = rabbit_channel:start_link(1, self(), Writer, - user(<<"user">>), <<"/">>, self(), - fun (_) -> {ok, self()} end), - [Q, Q2] = [Queue || Name <- [<<"foo">>, <<"bar">>], - {new, Queue = #amqqueue{}} <- - [rabbit_amqqueue:declare( - rabbit_misc:r(<<"/">>, queue, Name), - false, false, [], none)]], - - ok = rabbit_amqqueue:basic_consume(Q, true, Ch, undefined, - <<"ctag">>, true, undefined), - - %% list queues - ok = info_action(list_queues, rabbit_amqqueue:info_keys(), true), - - %% list exchanges - ok = info_action(list_exchanges, rabbit_exchange:info_keys(), true), - - %% list bindings - ok = info_action(list_bindings, rabbit_binding:info_keys(), true), - %% misc binding listing APIs - [_|_] = rabbit_binding:list_for_source( - rabbit_misc:r(<<"/">>, exchange, <<"">>)), - [_] = rabbit_binding:list_for_destination( - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - [_] = rabbit_binding:list_for_source_and_destination( - rabbit_misc:r(<<"/">>, exchange, <<"">>), - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - - %% list connections - [#listener{host = H, port = P} | _] = - [L || L = #listener{node = N} <- rabbit_networking:active_listeners(), - N =:= node()], - - {ok, _C} = gen_tcp:connect(H, P, []), - timer:sleep(100), - ok = info_action(list_connections, - rabbit_networking:connection_info_keys(), false), - %% close_connection - [ConnPid] = rabbit_networking:connections(), - ok = control_action(close_connection, [rabbit_misc:pid_to_string(ConnPid), - "go away"]), - - %% list channels - ok = info_action(list_channels, rabbit_channel:info_keys(), false), - - %% list consumers - ok = control_action(list_consumers, []), - - %% cleanup - [{ok, _} = rabbit_amqqueue:delete(QR, false, false) || QR <- [Q, Q2]], - - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_spawn(Receiver) -> - Me = self(), - Writer = spawn(fun () -> Receiver(Me) end), - {ok, Ch} = rabbit_channel:start_link(1, Me, Writer, - user(<<"guest">>), <<"/">>, self(), - fun (_) -> {ok, self()} end), - ok = rabbit_channel:do(Ch, #'channel.open'{}), - receive #'channel.open_ok'{} -> ok - after 1000 -> throw(failed_to_receive_channel_open_ok) - end, - {Writer, Ch}. - -user(Username) -> - #user{username = Username, - is_admin = true, - auth_backend = rabbit_auth_backend_internal, - impl = #internal_user{username = Username, - is_admin = true}}. - -test_statistics_receiver(Pid) -> - receive - shutdown -> - ok; - {send_command, Method} -> - Pid ! Method, - test_statistics_receiver(Pid) - end. - -test_statistics_event_receiver(Pid) -> - receive - Foo -> - Pid ! Foo, - test_statistics_event_receiver(Pid) - end. - -test_statistics_receive_event(Ch, Matcher) -> - rabbit_channel:flush(Ch), - rabbit_channel:emit_stats(Ch), - test_statistics_receive_event1(Ch, Matcher). - -test_statistics_receive_event1(Ch, Matcher) -> - receive #event{type = channel_stats, props = Props} -> - case Matcher(Props) of - true -> Props; - _ -> test_statistics_receive_event1(Ch, Matcher) - end - after 1000 -> throw(failed_to_receive_event) - end. - -test_statistics() -> - application:set_env(rabbit, collect_statistics, fine), - - %% ATM this just tests the queue / exchange stats in channels. That's - %% by far the most complex code though. - - %% Set up a channel and queue - {_Writer, Ch} = test_spawn(fun test_statistics_receiver/1), - rabbit_channel:do(Ch, #'queue.declare'{}), - QName = receive #'queue.declare_ok'{queue = Q0} -> - Q0 - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - {ok, Q} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName)), - QPid = Q#amqqueue.pid, - X = rabbit_misc:r(<<"/">>, exchange, <<"">>), - - rabbit_tests_event_receiver:start(self()), - - %% Check stats empty - Event = test_statistics_receive_event(Ch, fun (_) -> true end), - [] = proplists:get_value(channel_queue_stats, Event), - [] = proplists:get_value(channel_exchange_stats, Event), - [] = proplists:get_value(channel_queue_exchange_stats, Event), - - %% Publish and get a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"">>, - routing_key = QName}, - rabbit_basic:build_content(#'P_basic'{}, <<"">>)), - rabbit_channel:do(Ch, #'basic.get'{queue = QName}), - - %% Check the stats reflect that - Event2 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) > 0 - end), - [{QPid,[{get,1}]}] = proplists:get_value(channel_queue_stats, Event2), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event2), - [{{QPid,X},[{publish,1}]}] = - proplists:get_value(channel_queue_exchange_stats, Event2), - - %% Check the stats remove stuff on queue deletion - rabbit_channel:do(Ch, #'queue.delete'{queue = QName}), - Event3 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) == 0 - end), - - [] = proplists:get_value(channel_queue_stats, Event3), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event3), - [] = proplists:get_value(channel_queue_exchange_stats, Event3), - - rabbit_channel:shutdown(Ch), - rabbit_tests_event_receiver:stop(), - passed. - -test_delegates_async(SecondaryNode) -> - Self = self(), - Sender = fun (Pid) -> Pid ! {invoked, Self} end, - - Responder = make_responder(fun ({invoked, Pid}) -> Pid ! response end), - - ok = delegate:invoke_no_result(spawn(Responder), Sender), - ok = delegate:invoke_no_result(spawn(SecondaryNode, Responder), Sender), - await_response(2), - - LocalPids = spawn_responders(node(), Responder, 10), - RemotePids = spawn_responders(SecondaryNode, Responder, 10), - ok = delegate:invoke_no_result(LocalPids ++ RemotePids, Sender), - await_response(20), - - passed. - -make_responder(FMsg) -> make_responder(FMsg, timeout). -make_responder(FMsg, Throw) -> - fun () -> - receive Msg -> FMsg(Msg) - after 1000 -> throw(Throw) - end - end. - -spawn_responders(Node, Responder, Count) -> - [spawn(Node, Responder) || _ <- lists:seq(1, Count)]. - -await_response(0) -> - ok; -await_response(Count) -> - receive - response -> ok, - await_response(Count - 1) - after 1000 -> - io:format("Async reply not received~n"), - throw(timeout) - end. - -must_exit(Fun) -> - try - Fun(), - throw(exit_not_thrown) - catch - exit:_ -> ok - end. - -test_delegates_sync(SecondaryNode) -> - Sender = fun (Pid) -> gen_server:call(Pid, invoked) end, - BadSender = fun (_Pid) -> exit(exception) end, - - Responder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end), - - BadResponder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end, bad_responder_died), - - response = delegate:invoke(spawn(Responder), Sender), - response = delegate:invoke(spawn(SecondaryNode, Responder), Sender), - - must_exit(fun () -> delegate:invoke(spawn(BadResponder), BadSender) end), - must_exit(fun () -> - delegate:invoke(spawn(SecondaryNode, BadResponder), BadSender) end), - - LocalGoodPids = spawn_responders(node(), Responder, 2), - RemoteGoodPids = spawn_responders(SecondaryNode, Responder, 2), - LocalBadPids = spawn_responders(node(), BadResponder, 2), - RemoteBadPids = spawn_responders(SecondaryNode, BadResponder, 2), - - {GoodRes, []} = delegate:invoke(LocalGoodPids ++ RemoteGoodPids, Sender), - true = lists:all(fun ({_, response}) -> true end, GoodRes), - GoodResPids = [Pid || {Pid, _} <- GoodRes], - - Good = lists:usort(LocalGoodPids ++ RemoteGoodPids), - Good = lists:usort(GoodResPids), - - {[], BadRes} = delegate:invoke(LocalBadPids ++ RemoteBadPids, BadSender), - true = lists:all(fun ({_, {exit, exception, _}}) -> true end, BadRes), - BadResPids = [Pid || {Pid, _} <- BadRes], - - Bad = lists:usort(LocalBadPids ++ RemoteBadPids), - Bad = lists:usort(BadResPids), - - MagicalPids = [rabbit_misc:string_to_pid(Str) || - Str <- ["", ""]], - {[], BadNodes} = delegate:invoke(MagicalPids, Sender), - true = lists:all( - fun ({_, {exit, {nodedown, nonode@nohost}, _Stack}}) -> true end, - BadNodes), - BadNodesPids = [Pid || {Pid, _} <- BadNodes], - - Magical = lists:usort(MagicalPids), - Magical = lists:usort(BadNodesPids), - - passed. - -test_queue_cleanup_receiver(Pid) -> - receive - shutdown -> - ok; - {send_command, Method} -> - Pid ! Method, - test_queue_cleanup_receiver(Pid) - end. - - -test_queue_cleanup(_SecondaryNode) -> - {_Writer, Ch} = test_spawn(fun test_queue_cleanup_receiver/1), - rabbit_channel:do(Ch, #'queue.declare'{ queue = ?CLEANUP_QUEUE_NAME }), - receive #'queue.declare_ok'{queue = ?CLEANUP_QUEUE_NAME} -> - ok - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - rabbit:stop(), - rabbit:start(), - rabbit_channel:do(Ch, #'queue.declare'{ passive = true, - queue = ?CLEANUP_QUEUE_NAME }), - receive - {channel_exit, 1, {amqp_error, not_found, _, _}} -> - ok - after 2000 -> - throw(failed_to_receive_channel_exit) - end, - passed. - -%--------------------------------------------------------------------- - -control_action(Command, Args) -> - control_action(Command, node(), Args, default_options()). - -control_action(Command, Args, NewOpts) -> - control_action(Command, node(), Args, - expand_options(default_options(), NewOpts)). - -control_action(Command, Node, Args, Opts) -> - case catch rabbit_control:action( - Command, Node, Args, Opts, - fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end) of - ok -> - io:format("done.~n"), - ok; - Other -> - io:format("failed.~n"), - Other - end. - -info_action(Command, Args, CheckVHost) -> - ok = control_action(Command, []), - if CheckVHost -> ok = control_action(Command, []); - true -> ok - end, - ok = control_action(Command, lists:map(fun atom_to_list/1, Args)), - {bad_argument, dummy} = control_action(Command, ["dummy"]), - ok. - -default_options() -> [{"-p", "/"}, {"-q", "false"}]. - -expand_options(As, Bs) -> - lists:foldl(fun({K, _}=A, R) -> - case proplists:is_defined(K, R) of - true -> R; - false -> [A | R] - end - end, Bs, As). - -check_get_options({ExpArgs, ExpOpts}, Defs, Args) -> - {ExpArgs, ResOpts} = rabbit_misc:get_options(Defs, Args), - true = lists:sort(ExpOpts) == lists:sort(ResOpts), % don't care about the order - ok. - -empty_files(Files) -> - [case file:read_file_info(File) of - {ok, FInfo} -> FInfo#file_info.size == 0; - Error -> Error - end || File <- Files]. - -non_empty_files(Files) -> - [case EmptyFile of - {error, Reason} -> {error, Reason}; - _ -> not(EmptyFile) - end || EmptyFile <- empty_files(Files)]. - -test_logs_working(MainLogFile, SaslLogFile) -> - ok = rabbit_log:error("foo bar"), - ok = error_logger:error_report(crash_report, [foo, bar]), - %% give the error loggers some time to catch up - timer:sleep(50), - [true, true] = non_empty_files([MainLogFile, SaslLogFile]), - ok. - -set_permissions(Path, Mode) -> - case file:read_file_info(Path) of - {ok, FInfo} -> file:write_file_info( - Path, - FInfo#file_info{mode=Mode}); - Error -> Error - end. - -clean_logs(Files, Suffix) -> - [begin - ok = delete_file(File), - ok = delete_file([File, Suffix]) - end || File <- Files], - ok. - -delete_file(File) -> - case file:delete(File) of - ok -> ok; - {error, enoent} -> ok; - Error -> Error - end. - -make_files_non_writable(Files) -> - [ok = file:write_file_info(File, #file_info{mode=0}) || - File <- Files], - ok. - -add_log_handlers(Handlers) -> - [ok = error_logger:add_report_handler(Handler, Args) || - {Handler, Args} <- Handlers], - ok. - -delete_log_handlers(Handlers) -> - [[] = error_logger:delete_report_handler(Handler) || - Handler <- Handlers], - ok. - -test_supervisor_delayed_restart() -> - test_sup:test_supervisor_delayed_restart(). - -test_file_handle_cache() -> - %% test copying when there is just one spare handle - Limit = file_handle_cache:get_limit(), - ok = file_handle_cache:set_limit(5), %% 1 or 2 sockets, 2 msg_stores - TmpDir = filename:join(rabbit_mnesia:dir(), "tmp"), - ok = filelib:ensure_dir(filename:join(TmpDir, "nothing")), - Pid = spawn(fun () -> {ok, Hdl} = file_handle_cache:open( - filename:join(TmpDir, "file3"), - [write], []), - receive close -> ok end, - file_handle_cache:delete(Hdl) - end), - Src = filename:join(TmpDir, "file1"), - Dst = filename:join(TmpDir, "file2"), - Content = <<"foo">>, - ok = file:write_file(Src, Content), - {ok, SrcHdl} = file_handle_cache:open(Src, [read], []), - {ok, DstHdl} = file_handle_cache:open(Dst, [write], []), - Size = size(Content), - {ok, Size} = file_handle_cache:copy(SrcHdl, DstHdl, Size), - ok = file_handle_cache:delete(SrcHdl), - file_handle_cache:delete(DstHdl), - Pid ! close, - ok = file_handle_cache:set_limit(Limit), - passed. - -test_backing_queue() -> - case application:get_env(rabbit, backing_queue_module) of - {ok, rabbit_variable_queue} -> - {ok, FileSizeLimit} = - application:get_env(rabbit, msg_store_file_size_limit), - application:set_env(rabbit, msg_store_file_size_limit, 512, - infinity), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - application:set_env(rabbit, queue_index_max_journal_entries, 128, - infinity), - passed = test_msg_store(), - application:set_env(rabbit, msg_store_file_size_limit, - FileSizeLimit, infinity), - passed = test_queue_index(), - passed = test_queue_index_props(), - passed = test_variable_queue(), - passed = test_variable_queue_delete_msg_store_files_callback(), - passed = test_queue_recover(), - application:set_env(rabbit, queue_index_max_journal_entries, - MaxJournal, infinity), - passed; - _ -> - passed - end. - -restart_msg_store_empty() -> - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - undefined, {fun (ok) -> finished end, ok}). - -guid_bin(X) -> - erlang:md5(term_to_binary(X)). - -msg_store_client_init(MsgStore, Ref) -> - rabbit_msg_store:client_init(MsgStore, Ref, undefined, undefined). - -msg_store_contains(Atom, Guids, MSCState) -> - Atom = lists:foldl( - fun (Guid, Atom1) when Atom1 =:= Atom -> - rabbit_msg_store:contains(Guid, MSCState) end, - Atom, Guids). - -msg_store_sync(Guids, MSCState) -> - Ref = make_ref(), - Self = self(), - ok = rabbit_msg_store:sync(Guids, fun () -> Self ! {sync, Ref} end, - MSCState), - receive - {sync, Ref} -> ok - after - 10000 -> - io:format("Sync from msg_store missing for guids ~p~n", [Guids]), - throw(timeout) - end. - -msg_store_read(Guids, MSCState) -> - lists:foldl(fun (Guid, MSCStateM) -> - {{ok, Guid}, MSCStateN} = rabbit_msg_store:read( - Guid, MSCStateM), - MSCStateN - end, MSCState, Guids). - -msg_store_write(Guids, MSCState) -> - ok = lists:foldl( - fun (Guid, ok) -> rabbit_msg_store:write(Guid, Guid, MSCState) end, - ok, Guids). - -msg_store_remove(Guids, MSCState) -> - rabbit_msg_store:remove(Guids, MSCState). - -msg_store_remove(MsgStore, Ref, Guids) -> - with_msg_store_client(MsgStore, Ref, - fun (MSCStateM) -> - ok = msg_store_remove(Guids, MSCStateM), - MSCStateM - end). - -with_msg_store_client(MsgStore, Ref, Fun) -> - rabbit_msg_store:client_terminate( - Fun(msg_store_client_init(MsgStore, Ref))). - -foreach_with_msg_store_client(MsgStore, Ref, Fun, L) -> - rabbit_msg_store:client_terminate( - lists:foldl(fun (Guid, MSCState) -> Fun(Guid, MSCState) end, - msg_store_client_init(MsgStore, Ref), L)). - -test_msg_store() -> - restart_msg_store_empty(), - Self = self(), - Guids = [guid_bin(M) || M <- lists:seq(1,100)], - {Guids1stHalf, Guids2ndHalf} = lists:split(50, Guids), - Ref = rabbit_guid:guid(), - MSCState = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs we're about to publish - false = msg_store_contains(false, Guids, MSCState), - %% publish the first half - ok = msg_store_write(Guids1stHalf, MSCState), - %% sync on the first half - ok = msg_store_sync(Guids1stHalf, MSCState), - %% publish the second half - ok = msg_store_write(Guids2ndHalf, MSCState), - %% sync on the first half again - the msg_store will be dirty, but - %% we won't need the fsync - ok = msg_store_sync(Guids1stHalf, MSCState), - %% check they're all in there - true = msg_store_contains(true, Guids, MSCState), - %% publish the latter half twice so we hit the caching and ref count code - ok = msg_store_write(Guids2ndHalf, MSCState), - %% check they're still all in there - true = msg_store_contains(true, Guids, MSCState), - %% sync on the 2nd half, but do lots of individual syncs to try - %% and cause coalescing to happen - ok = lists:foldl( - fun (Guid, ok) -> rabbit_msg_store:sync( - [Guid], fun () -> Self ! {sync, Guid} end, - MSCState) - end, ok, Guids2ndHalf), - lists:foldl( - fun(Guid, ok) -> - receive - {sync, Guid} -> ok - after - 10000 -> - io:format("Sync from msg_store missing (guid: ~p)~n", - [Guid]), - throw(timeout) - end - end, ok, Guids2ndHalf), - %% it's very likely we're not dirty here, so the 1st half sync - %% should hit a different code path - ok = msg_store_sync(Guids1stHalf, MSCState), - %% read them all - MSCState1 = msg_store_read(Guids, MSCState), - %% read them all again - this will hit the cache, not disk - MSCState2 = msg_store_read(Guids, MSCState1), - %% remove them all - ok = rabbit_msg_store:remove(Guids, MSCState2), - %% check first half doesn't exist - false = msg_store_contains(false, Guids1stHalf, MSCState2), - %% check second half does exist - true = msg_store_contains(true, Guids2ndHalf, MSCState2), - %% read the second half again - MSCState3 = msg_store_read(Guids2ndHalf, MSCState2), - %% release the second half, just for fun (aka code coverage) - ok = rabbit_msg_store:release(Guids2ndHalf, MSCState3), - %% read the second half again, just for fun (aka code coverage) - MSCState4 = msg_store_read(Guids2ndHalf, MSCState3), - ok = rabbit_msg_store:client_terminate(MSCState4), - %% stop and restart, preserving every other msg in 2nd half - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - [], {fun ([]) -> finished; - ([Guid|GuidsTail]) - when length(GuidsTail) rem 2 == 0 -> - {Guid, 1, GuidsTail}; - ([Guid|GuidsTail]) -> - {Guid, 0, GuidsTail} - end, Guids2ndHalf}), - MSCState5 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we have the right msgs left - lists:foldl( - fun (Guid, Bool) -> - not(Bool = rabbit_msg_store:contains(Guid, MSCState5)) - end, false, Guids2ndHalf), - ok = rabbit_msg_store:client_terminate(MSCState5), - %% restart empty - restart_msg_store_empty(), - MSCState6 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs - false = msg_store_contains(false, Guids, MSCState6), - %% publish the first half again - ok = msg_store_write(Guids1stHalf, MSCState6), - %% this should force some sort of sync internally otherwise misread - ok = rabbit_msg_store:client_terminate( - msg_store_read(Guids1stHalf, MSCState6)), - MSCState7 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - ok = rabbit_msg_store:remove(Guids1stHalf, MSCState7), - ok = rabbit_msg_store:client_terminate(MSCState7), - %% restart empty - restart_msg_store_empty(), %% now safe to reuse guids - %% push a lot of msgs in... at least 100 files worth - {ok, FileSize} = application:get_env(rabbit, msg_store_file_size_limit), - PayloadSizeBits = 65536, - BigCount = trunc(100 * FileSize / (PayloadSizeBits div 8)), - GuidsBig = [guid_bin(X) || X <- lists:seq(1, BigCount)], - Payload = << 0:PayloadSizeBits >>, - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - [ok = rabbit_msg_store:write(Guid, Payload, MSCStateM) || - Guid <- GuidsBig], - MSCStateM - end), - %% now read them to ensure we hit the fast client-side reading - ok = foreach_with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (Guid, MSCStateM) -> - {{ok, Payload}, MSCStateN} = rabbit_msg_store:read( - Guid, MSCStateM), - MSCStateN - end, GuidsBig), - %% .., then 3s by 1... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [guid_bin(X) || X <- lists:seq(BigCount, 1, -3)]), - %% .., then remove 3s by 2, from the young end first. This hits - %% GC (under 50% good data left, but no empty files. Must GC). - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [guid_bin(X) || X <- lists:seq(BigCount-1, 1, -3)]), - %% .., then remove 3s by 3, from the young end first. This hits - %% GC... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [guid_bin(X) || X <- lists:seq(BigCount-2, 1, -3)]), - %% ensure empty - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - false = msg_store_contains(false, GuidsBig, MSCStateM), - MSCStateM - end), - %% restart empty - restart_msg_store_empty(), - passed. - -queue_name(Name) -> - rabbit_misc:r(<<"/">>, queue, Name). - -test_queue() -> - queue_name(<<"test">>). - -init_test_queue() -> - TestQueue = test_queue(), - Terms = rabbit_queue_index:shutdown_terms(TestQueue), - PRef = proplists:get_value(persistent_ref, Terms, rabbit_guid:guid()), - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef), - Res = rabbit_queue_index:recover( - TestQueue, Terms, false, - fun (Guid) -> - rabbit_msg_store:contains(Guid, PersistentClient) - end, - fun nop/1), - ok = rabbit_msg_store:client_delete_and_terminate(PersistentClient), - Res. - -restart_test_queue(Qi) -> - _ = rabbit_queue_index:terminate([], Qi), - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([test_queue()]), - init_test_queue(). - -empty_test_queue() -> - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - {0, Qi} = init_test_queue(), - _ = rabbit_queue_index:delete_and_terminate(Qi), - ok. - -with_empty_test_queue(Fun) -> - ok = empty_test_queue(), - {0, Qi} = init_test_queue(), - rabbit_queue_index:delete_and_terminate(Fun(Qi)). - -queue_index_publish(SeqIds, Persistent, Qi) -> - Ref = rabbit_guid:guid(), - MsgStore = case Persistent of - true -> ?PERSISTENT_MSG_STORE; - false -> ?TRANSIENT_MSG_STORE - end, - MSCState = msg_store_client_init(MsgStore, Ref), - {A, B = [{_SeqId, LastGuidWritten} | _]} = - lists:foldl( - fun (SeqId, {QiN, SeqIdsGuidsAcc}) -> - Guid = rabbit_guid:guid(), - QiM = rabbit_queue_index:publish( - Guid, SeqId, #message_properties{}, Persistent, QiN), - ok = rabbit_msg_store:write(Guid, Guid, MSCState), - {QiM, [{SeqId, Guid} | SeqIdsGuidsAcc]} - end, {Qi, []}, SeqIds), - %% do this just to force all of the publishes through to the msg_store: - true = rabbit_msg_store:contains(LastGuidWritten, MSCState), - ok = rabbit_msg_store:client_delete_and_terminate(MSCState), - {A, B}. - -verify_read_with_published(_Delivered, _Persistent, [], _) -> - ok; -verify_read_with_published(Delivered, Persistent, - [{Guid, SeqId, _Props, Persistent, Delivered}|Read], - [{SeqId, Guid}|Published]) -> - verify_read_with_published(Delivered, Persistent, Read, Published); -verify_read_with_published(_Delivered, _Persistent, _Read, _Published) -> - ko. - -test_queue_index_props() -> - with_empty_test_queue( - fun(Qi0) -> - Guid = rabbit_guid:guid(), - Props = #message_properties{expiry=12345}, - Qi1 = rabbit_queue_index:publish(Guid, 1, Props, true, Qi0), - {[{Guid, 1, Props, _, _}], Qi2} = - rabbit_queue_index:read(1, 2, Qi1), - Qi2 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -test_queue_index() -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - TwoSegs = SegmentSize + SegmentSize, - MostOfASegment = trunc(SegmentSize*0.75), - SeqIdsA = lists:seq(0, MostOfASegment-1), - SeqIdsB = lists:seq(MostOfASegment, 2*MostOfASegment), - SeqIdsC = lists:seq(0, trunc(SegmentSize/2)), - SeqIdsD = lists:seq(0, SegmentSize*4), - - with_empty_test_queue( - fun (Qi0) -> - {0, 0, Qi1} = rabbit_queue_index:bounds(Qi0), - {Qi2, SeqIdsGuidsA} = queue_index_publish(SeqIdsA, false, Qi1), - {0, SegmentSize, Qi3} = rabbit_queue_index:bounds(Qi2), - {ReadA, Qi4} = rabbit_queue_index:read(0, SegmentSize, Qi3), - ok = verify_read_with_published(false, false, ReadA, - lists:reverse(SeqIdsGuidsA)), - %% should get length back as 0, as all the msgs were transient - {0, Qi6} = restart_test_queue(Qi4), - {0, 0, Qi7} = rabbit_queue_index:bounds(Qi6), - {Qi8, SeqIdsGuidsB} = queue_index_publish(SeqIdsB, true, Qi7), - {0, TwoSegs, Qi9} = rabbit_queue_index:bounds(Qi8), - {ReadB, Qi10} = rabbit_queue_index:read(0, SegmentSize, Qi9), - ok = verify_read_with_published(false, true, ReadB, - lists:reverse(SeqIdsGuidsB)), - %% should get length back as MostOfASegment - LenB = length(SeqIdsB), - {LenB, Qi12} = restart_test_queue(Qi10), - {0, TwoSegs, Qi13} = rabbit_queue_index:bounds(Qi12), - Qi14 = rabbit_queue_index:deliver(SeqIdsB, Qi13), - {ReadC, Qi15} = rabbit_queue_index:read(0, SegmentSize, Qi14), - ok = verify_read_with_published(true, true, ReadC, - lists:reverse(SeqIdsGuidsB)), - Qi16 = rabbit_queue_index:ack(SeqIdsB, Qi15), - Qi17 = rabbit_queue_index:flush(Qi16), - %% Everything will have gone now because #pubs == #acks - {0, 0, Qi18} = rabbit_queue_index:bounds(Qi17), - %% should get length back as 0 because all persistent - %% msgs have been acked - {0, Qi19} = restart_test_queue(Qi18), - Qi19 - end), - - %% These next bits are just to hit the auto deletion of segment files. - %% First, partials: - %% a) partial pub+del+ack, then move to new segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsC} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsC, Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, _SeqIdsGuidsC1} = queue_index_publish([SegmentSize], - false, Qi4), - Qi5 - end), - - %% b) partial pub+del, then move to new segment, then ack all in old segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsC2} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - {Qi3, _SeqIdsGuidsC3} = queue_index_publish([SegmentSize], - false, Qi2), - Qi4 = rabbit_queue_index:ack(SeqIdsC, Qi3), - rabbit_queue_index:flush(Qi4) - end), - - %% c) just fill up several segments of all pubs, then +dels, then +acks - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsD} = queue_index_publish(SeqIdsD, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsD, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsD, Qi2), - rabbit_queue_index:flush(Qi3) - end), - - %% d) get messages in all states to a segment, then flush, then do - %% the same again, don't flush and read. This will hit all - %% possibilities in combining the segment with the journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, [Seven,Five,Four|_]} = queue_index_publish([0,1,2,4,5,7], - false, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, [Eight,Six|_]} = queue_index_publish([3,6,8], false, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {[], Qi8} = rabbit_queue_index:read(0, 4, Qi7), - {ReadD, Qi9} = rabbit_queue_index:read(4, 7, Qi8), - ok = verify_read_with_published(true, false, ReadD, - [Four, Five, Six]), - {ReadE, Qi10} = rabbit_queue_index:read(7, 9, Qi9), - ok = verify_read_with_published(false, false, ReadE, - [Seven, Eight]), - Qi10 - end), - - %% e) as for (d), but use terminate instead of read, which will - %% exercise journal_minus_segment, not segment_plus_journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsE} = queue_index_publish([0,1,2,4,5,7], - true, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - {5, Qi4} = restart_test_queue(Qi3), - {Qi5, _SeqIdsGuidsF} = queue_index_publish([3,6,8], true, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {5, Qi8} = restart_test_queue(Qi7), - Qi8 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -variable_queue_publish(IsPersistent, Count, VQ) -> - lists:foldl( - fun (_N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = case IsPersistent of - true -> 2; - false -> 1 - end}, <<>>), - #message_properties{}, VQN) - end, VQ, lists:seq(1, Count)). - -variable_queue_fetch(Count, IsPersistent, IsDelivered, Len, VQ) -> - lists:foldl(fun (N, {VQN, AckTagsAcc}) -> - Rem = Len - N, - {{#basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTagN, Rem}, VQM} = - rabbit_variable_queue:fetch(true, VQN), - {VQM, [AckTagN | AckTagsAcc]} - end, {VQ, []}, lists:seq(1, Count)). - -assert_prop(List, Prop, Value) -> - Value = proplists:get_value(Prop, List). - -assert_props(List, PropVals) -> - [assert_prop(List, Prop, Value) || {Prop, Value} <- PropVals]. - -with_fresh_variable_queue(Fun) -> - ok = empty_test_queue(), - VQ = rabbit_variable_queue:init(test_queue(), true, false, - fun nop/2, fun nop/1), - S0 = rabbit_variable_queue:status(VQ), - assert_props(S0, [{q1, 0}, {q2, 0}, - {delta, {delta, undefined, 0, undefined}}, - {q3, 0}, {q4, 0}, - {len, 0}]), - _ = rabbit_variable_queue:delete_and_terminate(Fun(VQ)), - passed. - -test_variable_queue() -> - [passed = with_fresh_variable_queue(F) || - F <- [fun test_variable_queue_dynamic_duration_change/1, - fun test_variable_queue_partial_segments_delta_thing/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere1/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere2/1, - fun test_dropwhile/1, - fun test_variable_queue_ack_limiting/1]], - passed. - -test_variable_queue_ack_limiting(VQ0) -> - %% start by sending in a bunch of messages - Len = 1024, - VQ1 = variable_queue_publish(false, Len, VQ0), - - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - %% update stats for duration - {_Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - - %% fetch half the messages - {VQ4, _AckTags} = variable_queue_fetch(Len div 2, false, false, Len, VQ3), - - VQ5 = check_variable_queue_status(VQ4, [{len , Len div 2}, - {ram_ack_count, Len div 2}, - {ram_msg_count, Len div 2}]), - - %% ensure all acks go to disk on 0 duration target - VQ6 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ5), - [{len, Len div 2}, - {target_ram_count, 0}, - {ram_msg_count, 0}, - {ram_ack_count, 0}]), - - VQ6. - -test_dropwhile(VQ0) -> - Count = 10, - - %% add messages with sequential expiry - VQ1 = lists:foldl( - fun (N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{}, <<>>), - #message_properties{expiry = N}, VQN) - end, VQ0, lists:seq(1, Count)), - - %% drop the first 5 messages - VQ2 = rabbit_variable_queue:dropwhile( - fun(#message_properties { expiry = Expiry }) -> - Expiry =< 5 - end, VQ1), - - %% fetch five now - VQ3 = lists:foldl(fun (_N, VQN) -> - {{#basic_message{}, _, _, _}, VQM} = - rabbit_variable_queue:fetch(false, VQN), - VQM - end, VQ2, lists:seq(6, Count)), - - %% should be empty now - {empty, VQ4} = rabbit_variable_queue:fetch(false, VQ3), - - VQ4. - -test_variable_queue_dynamic_duration_change(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - - %% start by sending in a couple of segments worth - Len = 2*SegmentSize, - VQ1 = variable_queue_publish(false, Len, VQ0), - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - {Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - VQ7 = lists:foldl( - fun (Duration1, VQ4) -> - {_Duration, VQ5} = rabbit_variable_queue:ram_duration(VQ4), - io:format("~p:~n~p~n", - [Duration1, rabbit_variable_queue:status(VQ5)]), - VQ6 = rabbit_variable_queue:set_ram_duration_target( - Duration1, VQ5), - publish_fetch_and_ack(Churn, Len, VQ6) - end, VQ3, [Duration / 4, 0, Duration / 4, infinity]), - - %% drain - {VQ8, AckTags} = variable_queue_fetch(Len, false, false, Len, VQ7), - VQ9 = rabbit_variable_queue:ack(AckTags, VQ8), - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - - VQ10. - -publish_fetch_and_ack(0, _Len, VQ0) -> - VQ0; -publish_fetch_and_ack(N, Len, VQ0) -> - VQ1 = variable_queue_publish(false, 1, VQ0), - {{_Msg, false, AckTag, Len}, VQ2} = rabbit_variable_queue:fetch(true, VQ1), - VQ3 = rabbit_variable_queue:ack([AckTag], VQ2), - publish_fetch_and_ack(N-1, Len, VQ3). - -test_variable_queue_partial_segments_delta_thing(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - HalfSegment = SegmentSize div 2, - OneAndAHalfSegment = SegmentSize + HalfSegment, - VQ1 = variable_queue_publish(true, OneAndAHalfSegment, VQ0), - {_Duration, VQ2} = rabbit_variable_queue:ram_duration(VQ1), - VQ3 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ2), - %% one segment in q3 as betas, and half a segment in delta - [{delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment}]), - VQ4 = rabbit_variable_queue:set_ram_duration_target(infinity, VQ3), - VQ5 = check_variable_queue_status( - variable_queue_publish(true, 1, VQ4), - %% one alpha, but it's in the same segment as the deltas - [{q1, 1}, - {delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment + 1}]), - {VQ6, AckTags} = variable_queue_fetch(SegmentSize, true, false, - SegmentSize + HalfSegment + 1, VQ5), - VQ7 = check_variable_queue_status( - VQ6, - %% the half segment should now be in q3 as betas - [{q1, 1}, - {delta, {delta, undefined, 0, undefined}}, - {q3, HalfSegment}, - {len, HalfSegment + 1}]), - {VQ8, AckTags1} = variable_queue_fetch(HalfSegment + 1, true, false, - HalfSegment + 1, VQ7), - VQ9 = rabbit_variable_queue:ack(AckTags ++ AckTags1, VQ8), - %% should be empty now - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - VQ10. - -check_variable_queue_status(VQ0, Props) -> - VQ1 = variable_queue_wait_for_shuffling_end(VQ0), - S = rabbit_variable_queue:status(VQ1), - io:format("~p~n", [S]), - assert_props(S, Props), - VQ1. - -variable_queue_wait_for_shuffling_end(VQ) -> - case rabbit_variable_queue:needs_idle_timeout(VQ) of - true -> variable_queue_wait_for_shuffling_end( - rabbit_variable_queue:idle_timeout(VQ)); - false -> VQ - end. - -test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - VQ1 = variable_queue_publish(true, Count, VQ0), - VQ2 = variable_queue_publish(false, Count, VQ1), - VQ3 = rabbit_variable_queue:set_ram_duration_target(0, VQ2), - {VQ4, _AckTags} = variable_queue_fetch(Count, true, false, - Count + Count, VQ3), - {VQ5, _AckTags1} = variable_queue_fetch(Count, false, false, - Count, VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = rabbit_variable_queue:init(test_queue(), true, true, - fun nop/2, fun nop/1), - {{_Msg1, true, _AckTag1, Count1}, VQ8} = - rabbit_variable_queue:fetch(true, VQ7), - VQ9 = variable_queue_publish(false, 1, VQ8), - VQ10 = rabbit_variable_queue:set_ram_duration_target(0, VQ9), - {VQ11, _AckTags2} = variable_queue_fetch(Count1, true, true, Count, VQ10), - {VQ12, _AckTags3} = variable_queue_fetch(1, false, false, 1, VQ11), - VQ12. - -test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ0) -> - VQ1 = rabbit_variable_queue:set_ram_duration_target(0, VQ0), - VQ2 = variable_queue_publish(false, 4, VQ1), - {VQ3, AckTags} = variable_queue_fetch(2, false, false, 4, VQ2), - VQ4 = rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, VQ3), - VQ5 = rabbit_variable_queue:idle_timeout(VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = rabbit_variable_queue:init(test_queue(), true, true, - fun nop/2, fun nop/1), - {empty, VQ8} = rabbit_variable_queue:fetch(false, VQ7), - VQ8. - -test_queue_recover() -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - TxID = rabbit_guid:guid(), - {new, #amqqueue { pid = QPid, name = QName }} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - [begin - Msg = rabbit_basic:message(rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, <<>>), - Delivery = #delivery{mandatory = false, immediate = false, txn = TxID, - sender = self(), message = Msg}, - true = rabbit_amqqueue:deliver(QPid, Delivery) - end || _ <- lists:seq(1, Count)], - rabbit_amqqueue:commit_all([QPid], TxID, self()), - exit(QPid, kill), - MRef = erlang:monitor(process, QPid), - receive {'DOWN', MRef, process, QPid, _Info} -> ok - after 10000 -> exit(timeout_waiting_for_queue_death) - end, - rabbit_amqqueue:stop(), - ok = rabbit_amqqueue:start(), - rabbit_amqqueue:with_or_die( - QName, - fun (Q1 = #amqqueue { pid = QPid1 }) -> - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid1, _AckTag, true, _Msg}} = - rabbit_amqqueue:basic_get(Q1, self(), false), - exit(QPid1, shutdown), - VQ1 = rabbit_variable_queue:init(QName, true, true, - fun nop/2, fun nop/1), - {{_Msg1, true, _AckTag1, CountMinusOne}, VQ2} = - rabbit_variable_queue:fetch(true, VQ1), - _VQ3 = rabbit_variable_queue:delete_and_terminate(VQ2), - rabbit_amqqueue:internal_delete(QName) - end), - passed. - -test_variable_queue_delete_msg_store_files_callback() -> - ok = restart_msg_store_empty(), - {new, #amqqueue { pid = QPid, name = QName } = Q} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - TxID = rabbit_guid:guid(), - Payload = <<0:8388608>>, %% 1MB - Count = 30, - [begin - Msg = rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, Payload), - Delivery = #delivery{mandatory = false, immediate = false, txn = TxID, - sender = self(), message = Msg}, - true = rabbit_amqqueue:deliver(QPid, Delivery) - end || _ <- lists:seq(1, Count)], - rabbit_amqqueue:commit_all([QPid], TxID, self()), - rabbit_amqqueue:set_ram_duration_target(QPid, 0), - - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid, _AckTag, false, _Msg}} = - rabbit_amqqueue:basic_get(Q, self(), true), - {ok, CountMinusOne} = rabbit_amqqueue:purge(Q), - - %% give the queue a second to receive the close_fds callback msg - timer:sleep(1000), - - rabbit_amqqueue:delete(Q, false, false), - passed. - -test_configurable_server_properties() -> - %% List of the names of the built-in properties do we expect to find - BuiltInPropNames = [<<"product">>, <<"version">>, <<"platform">>, - <<"copyright">>, <<"information">>], - - %% Verify that the built-in properties are initially present - ActualPropNames = [Key || - {Key, longstr, _} <- rabbit_reader:server_properties()], - true = lists:all(fun (X) -> lists:member(X, ActualPropNames) end, - BuiltInPropNames), - - %% Get the initial server properties configured in the environment - {ok, ServerProperties} = application:get_env(rabbit, server_properties), - - %% Helper functions - ConsProp = fun (X) -> application:set_env(rabbit, - server_properties, - [X | ServerProperties]) end, - IsPropPresent = fun (X) -> lists:member(X, - rabbit_reader:server_properties()) - end, - - %% Add a wholly new property of the simplified {KeyAtom, StringValue} form - NewSimplifiedProperty = {NewHareKey, NewHareVal} = {hare, "soup"}, - ConsProp(NewSimplifiedProperty), - %% Do we find hare soup, appropriately formatted in the generated properties? - ExpectedHareImage = {list_to_binary(atom_to_list(NewHareKey)), - longstr, - list_to_binary(NewHareVal)}, - true = IsPropPresent(ExpectedHareImage), - - %% Add a wholly new property of the {BinaryKey, Type, Value} form - %% and check for it - NewProperty = {<<"new-bin-key">>, signedint, -1}, - ConsProp(NewProperty), - %% Do we find the new property? - true = IsPropPresent(NewProperty), - - %% Add a property that clobbers a built-in, and verify correct clobbering - {NewVerKey, NewVerVal} = NewVersion = {version, "X.Y.Z."}, - {BinNewVerKey, BinNewVerVal} = {list_to_binary(atom_to_list(NewVerKey)), - list_to_binary(NewVerVal)}, - ConsProp(NewVersion), - ClobberedServerProps = rabbit_reader:server_properties(), - %% Is the clobbering insert present? - true = IsPropPresent({BinNewVerKey, longstr, BinNewVerVal}), - %% Is the clobbering insert the only thing with the clobbering key? - [{BinNewVerKey, longstr, BinNewVerVal}] = - [E || {K, longstr, _V} = E <- ClobberedServerProps, K =:= BinNewVerKey], - - application:set_env(rabbit, server_properties, ServerProperties), - passed. - -nop(_) -> ok. -nop(_, _) -> ok. diff --git a/src/rabbit_tests_event_receiver.erl b/src/rabbit_tests_event_receiver.erl deleted file mode 100644 index 12c43faf..00000000 --- a/src/rabbit_tests_event_receiver.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests_event_receiver). - --export([start/1, stop/0]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - -start(Pid) -> - gen_event:add_handler(rabbit_event, ?MODULE, [Pid]). - -stop() -> - gen_event:delete_handler(rabbit_event, ?MODULE, []). - -%%---------------------------------------------------------------------------- - -init([Pid]) -> - {ok, Pid}. - -handle_call(_Request, Pid) -> - {ok, not_understood, Pid}. - -handle_event(Event, Pid) -> - Pid ! Event, - {ok, Pid}. - -handle_info(_Info, Pid) -> - {ok, Pid}. - -terminate(_Arg, _Pid) -> - ok. - -code_change(_OldVsn, Pid, _Extra) -> - {ok, Pid}. - -%%---------------------------------------------------------------------------- diff --git a/src/rabbit_types.erl b/src/rabbit_types.erl deleted file mode 100644 index 3dbe740f..00000000 --- a/src/rabbit_types.erl +++ /dev/null @@ -1,160 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_types). - --include("rabbit.hrl"). - --ifdef(use_specs). - --export_type([txn/0, maybe/1, info/0, infos/0, info_key/0, info_keys/0, - message/0, basic_message/0, - delivery/0, content/0, decoded_content/0, undecoded_content/0, - unencoded_content/0, encoded_content/0, message_properties/0, - vhost/0, ctag/0, amqp_error/0, r/1, r2/2, r3/3, listener/0, - binding/0, binding_source/0, binding_destination/0, - amqqueue/0, exchange/0, - connection/0, protocol/0, user/0, internal_user/0, - username/0, password/0, password_hash/0, ok/1, error/1, - ok_or_error/1, ok_or_error2/2, ok_pid_or_error/0, channel_exit/0, - connection_exit/0]). - --type(channel_exit() :: no_return()). --type(connection_exit() :: no_return()). - --type(maybe(T) :: T | 'none'). --type(vhost() :: binary()). --type(ctag() :: binary()). - -%% TODO: make this more precise by tying specific class_ids to -%% specific properties --type(undecoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: 'none', - properties_bin :: binary(), - payload_fragments_rev :: [binary()]} | - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: 'none', - payload_fragments_rev :: [binary()]}). --type(unencoded_content() :: undecoded_content()). --type(decoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: maybe(binary()), - payload_fragments_rev :: [binary()]}). --type(encoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: maybe(rabbit_framing:amqp_property_record()), - properties_bin :: binary(), - payload_fragments_rev :: [binary()]}). --type(content() :: undecoded_content() | decoded_content()). --type(basic_message() :: - #basic_message{exchange_name :: rabbit_exchange:name(), - routing_key :: rabbit_router:routing_key(), - content :: content(), - guid :: rabbit_guid:guid(), - is_persistent :: boolean()}). --type(message() :: basic_message()). --type(delivery() :: - #delivery{mandatory :: boolean(), - immediate :: boolean(), - txn :: maybe(txn()), - sender :: pid(), - message :: message()}). --type(message_properties() :: - #message_properties{expiry :: pos_integer() | 'undefined', - needs_confirming :: boolean()}). - -%% this is really an abstract type, but dialyzer does not support them --type(txn() :: rabbit_guid:guid()). - --type(info_key() :: atom()). --type(info_keys() :: [info_key()]). - --type(info() :: {info_key(), any()}). --type(infos() :: [info()]). - --type(amqp_error() :: - #amqp_error{name :: rabbit_framing:amqp_exception(), - explanation :: string(), - method :: rabbit_framing:amqp_method_name()}). - --type(r(Kind) :: - r2(vhost(), Kind)). --type(r2(VirtualHost, Kind) :: - r3(VirtualHost, Kind, rabbit_misc:resource_name())). --type(r3(VirtualHost, Kind, Name) :: - #resource{virtual_host :: VirtualHost, - kind :: Kind, - name :: Name}). - --type(listener() :: - #listener{node :: node(), - protocol :: atom(), - host :: rabbit_networking:hostname(), - port :: rabbit_networking:ip_port()}). - --type(binding_source() :: rabbit_exchange:name()). --type(binding_destination() :: rabbit_amqqueue:name() | rabbit_exchange:name()). - --type(binding() :: - #binding{source :: rabbit_exchange:name(), - destination :: binding_destination(), - key :: rabbit_binding:key(), - args :: rabbit_framing:amqp_table()}). - --type(amqqueue() :: - #amqqueue{name :: rabbit_amqqueue:name(), - durable :: boolean(), - auto_delete :: boolean(), - exclusive_owner :: rabbit_types:maybe(pid()), - arguments :: rabbit_framing:amqp_table(), - pid :: rabbit_types:maybe(pid())}). - --type(exchange() :: - #exchange{name :: rabbit_exchange:name(), - type :: rabbit_exchange:type(), - durable :: boolean(), - auto_delete :: boolean(), - arguments :: rabbit_framing:amqp_table()}). - --type(connection() :: pid()). - --type(protocol() :: rabbit_framing:protocol()). - --type(user() :: - #user{username :: username(), - is_admin :: boolean(), - auth_backend :: atom(), - impl :: any()}). - --type(internal_user() :: - #internal_user{username :: username(), - password_hash :: password_hash(), - is_admin :: boolean()}). - --type(username() :: binary()). --type(password() :: binary()). --type(password_hash() :: binary()). - --type(ok(A) :: {'ok', A}). --type(error(A) :: {'error', A}). --type(ok_or_error(A) :: 'ok' | error(A)). --type(ok_or_error2(A, B) :: ok(A) | error(B)). --type(ok_pid_or_error() :: ok_or_error2(pid(), any())). - --endif. % use_specs diff --git a/src/rabbit_upgrade.erl b/src/rabbit_upgrade.erl deleted file mode 100644 index b0a71523..00000000 --- a/src/rabbit_upgrade.erl +++ /dev/null @@ -1,169 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade). - --export([maybe_upgrade/0, read_version/0, write_version/0, desired_version/0]). - --include("rabbit.hrl"). - --define(VERSION_FILENAME, "schema_version"). --define(LOCK_FILENAME, "schema_upgrade_lock"). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --type(step() :: atom()). --type(version() :: [step()]). - --spec(maybe_upgrade/0 :: () -> 'ok' | 'version_not_available'). --spec(read_version/0 :: () -> rabbit_types:ok_or_error2(version(), any())). --spec(write_version/0 :: () -> 'ok'). --spec(desired_version/0 :: () -> version()). - --endif. - -%% ------------------------------------------------------------------- - -%% Try to upgrade the schema. If no information on the existing schema -%% could be found, do nothing. rabbit_mnesia:check_schema_integrity() -%% will catch the problem. -maybe_upgrade() -> - case read_version() of - {ok, CurrentHeads} -> - with_upgrade_graph( - fun (G) -> - case unknown_heads(CurrentHeads, G) of - [] -> case upgrades_to_apply(CurrentHeads, G) of - [] -> ok; - Upgrades -> apply_upgrades(Upgrades) - end; - Unknown -> throw({error, - {future_upgrades_found, Unknown}}) - end - end); - {error, enoent} -> - version_not_available - end. - -read_version() -> - case rabbit_misc:read_term_file(schema_filename()) of - {ok, [Heads]} -> {ok, Heads}; - {error, _} = Err -> Err - end. - -write_version() -> - ok = rabbit_misc:write_term_file(schema_filename(), [desired_version()]), - ok. - -desired_version() -> - with_upgrade_graph(fun (G) -> heads(G) end). - -%% ------------------------------------------------------------------- - -with_upgrade_graph(Fun) -> - case rabbit_misc:build_acyclic_graph( - fun vertices/2, fun edges/2, - rabbit_misc:all_module_attributes(rabbit_upgrade)) of - {ok, G} -> try - Fun(G) - after - true = digraph:delete(G) - end; - {error, {vertex, duplicate, StepName}} -> - throw({error, {duplicate_upgrade_step, StepName}}); - {error, {edge, {bad_vertex, StepName}, _From, _To}} -> - throw({error, {dependency_on_unknown_upgrade_step, StepName}}); - {error, {edge, {bad_edge, StepNames}, _From, _To}} -> - throw({error, {cycle_in_upgrade_steps, StepNames}}) - end. - -vertices(Module, Steps) -> - [{StepName, {Module, StepName}} || {StepName, _Reqs} <- Steps]. - -edges(_Module, Steps) -> - [{Require, StepName} || {StepName, Requires} <- Steps, Require <- Requires]. - - -unknown_heads(Heads, G) -> - [H || H <- Heads, digraph:vertex(G, H) =:= false]. - -upgrades_to_apply(Heads, G) -> - %% Take all the vertices which can reach the known heads. That's - %% everything we've already applied. Subtract that from all - %% vertices: that's what we have to apply. - Unsorted = sets:to_list( - sets:subtract( - sets:from_list(digraph:vertices(G)), - sets:from_list(digraph_utils:reaching(Heads, G)))), - %% Form a subgraph from that list and find a topological ordering - %% so we can invoke them in order. - [element(2, digraph:vertex(G, StepName)) || - StepName <- digraph_utils:topsort(digraph_utils:subgraph(G, Unsorted))]. - -heads(G) -> - lists:sort([V || V <- digraph:vertices(G), digraph:out_degree(G, V) =:= 0]). - -%% ------------------------------------------------------------------- - -apply_upgrades(Upgrades) -> - LockFile = lock_filename(dir()), - case rabbit_misc:lock_file(LockFile) of - ok -> - BackupDir = dir() ++ "-upgrade-backup", - info("Upgrades: ~w to apply~n", [length(Upgrades)]), - case rabbit_mnesia:copy_db(BackupDir) of - ok -> - %% We need to make the backup after creating the - %% lock file so that it protects us from trying to - %% overwrite the backup. Unfortunately this means - %% the lock file exists in the backup too, which - %% is not intuitive. Remove it. - ok = file:delete(lock_filename(BackupDir)), - info("Upgrades: Mnesia dir backed up to ~p~n", [BackupDir]), - [apply_upgrade(Upgrade) || Upgrade <- Upgrades], - info("Upgrades: All upgrades applied successfully~n", []), - ok = write_version(), - ok = rabbit_misc:recursive_delete([BackupDir]), - info("Upgrades: Mnesia backup removed~n", []), - ok = file:delete(LockFile); - {error, E} -> - %% If we can't backup, the upgrade hasn't started - %% hence we don't need the lockfile since the real - %% mnesia dir is the good one. - ok = file:delete(LockFile), - throw({could_not_back_up_mnesia_dir, E}) - end; - {error, eexist} -> - throw({error, previous_upgrade_failed}) - end. - -apply_upgrade({M, F}) -> - info("Upgrades: Applying ~w:~w~n", [M, F]), - ok = apply(M, F, []). - -%% ------------------------------------------------------------------- - -dir() -> rabbit_mnesia:dir(). - -schema_filename() -> filename:join(dir(), ?VERSION_FILENAME). - -lock_filename(Dir) -> filename:join(Dir, ?LOCK_FILENAME). - -%% NB: we cannot use rabbit_log here since it may not have been -%% started yet -info(Msg, Args) -> error_logger:info_msg(Msg, Args). diff --git a/src/rabbit_upgrade_functions.erl b/src/rabbit_upgrade_functions.erl deleted file mode 100644 index 68b88b3e..00000000 --- a/src/rabbit_upgrade_functions.erl +++ /dev/null @@ -1,103 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade_functions). - --include("rabbit.hrl"). - --compile([export_all]). - --rabbit_upgrade({remove_user_scope, []}). --rabbit_upgrade({hash_passwords, []}). --rabbit_upgrade({add_ip_to_listener, []}). --rabbit_upgrade({internal_exchanges, []}). --rabbit_upgrade({user_to_internal_user, [hash_passwords]}). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --spec(remove_user_scope/0 :: () -> 'ok'). --spec(hash_passwords/0 :: () -> 'ok'). --spec(add_ip_to_listener/0 :: () -> 'ok'). --spec(internal_exchanges/0 :: () -> 'ok'). --spec(user_to_internal_user/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -%% It's a bad idea to use records or record_info here, even for the -%% destination form. Because in the future, the destination form of -%% your current transform may not match the record any more, and it -%% would be messy to have to go back and fix old transforms at that -%% point. - -remove_user_scope() -> - mnesia( - rabbit_user_permission, - fun ({user_permission, UV, {permission, _Scope, Conf, Write, Read}}) -> - {user_permission, UV, {permission, Conf, Write, Read}} - end, - [user_vhost, permission]). - -hash_passwords() -> - mnesia( - rabbit_user, - fun ({user, Username, Password, IsAdmin}) -> - Hash = rabbit_auth_backend_internal:hash_password(Password), - {user, Username, Hash, IsAdmin} - end, - [username, password_hash, is_admin]). - -add_ip_to_listener() -> - mnesia( - rabbit_listener, - fun ({listener, Node, Protocol, Host, Port}) -> - {listener, Node, Protocol, Host, {0,0,0,0}, Port} - end, - [node, protocol, host, ip_address, port]). - -internal_exchanges() -> - Tables = [rabbit_exchange, rabbit_durable_exchange], - AddInternalFun = - fun ({exchange, Name, Type, Durable, AutoDelete, Args}) -> - {exchange, Name, Type, Durable, AutoDelete, false, Args} - end, - [ ok = mnesia(T, - AddInternalFun, - [name, type, durable, auto_delete, internal, arguments]) - || T <- Tables ], - ok. - -user_to_internal_user() -> - mnesia( - rabbit_user, - fun({user, Username, PasswordHash, IsAdmin}) -> - {internal_user, Username, PasswordHash, IsAdmin} - end, - [username, password_hash, is_admin], internal_user). - -%%-------------------------------------------------------------------- - -mnesia(TableName, Fun, FieldList) -> - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList), - ok. - -mnesia(TableName, Fun, FieldList, NewRecordName) -> - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList, - NewRecordName), - ok. diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl deleted file mode 100644 index 7142d560..00000000 --- a/src/rabbit_variable_queue.erl +++ /dev/null @@ -1,1803 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_variable_queue). - --export([init/3, terminate/1, delete_and_terminate/1, - purge/1, publish/3, publish_delivered/4, fetch/2, ack/2, - tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, - requeue/3, len/1, is_empty/1, dropwhile/2, - set_ram_duration_target/2, ram_duration/1, - needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, - status/1]). - --export([start/1, stop/0]). - -%% exported for testing only --export([start_msg_store/2, stop_msg_store/0, init/5]). - -%%---------------------------------------------------------------------------- -%% Definitions: - -%% alpha: this is a message where both the message itself, and its -%% position within the queue are held in RAM -%% -%% beta: this is a message where the message itself is only held on -%% disk, but its position within the queue is held in RAM. -%% -%% gamma: this is a message where the message itself is only held on -%% disk, but its position is both in RAM and on disk. -%% -%% delta: this is a collection of messages, represented by a single -%% term, where the messages and their position are only held on -%% disk. -%% -%% Note that for persistent messages, the message and its position -%% within the queue are always held on disk, *in addition* to being in -%% one of the above classifications. -%% -%% Also note that within this code, the term gamma never -%% appears. Instead, gammas are defined by betas who have had their -%% queue position recorded on disk. -%% -%% In general, messages move q1 -> q2 -> delta -> q3 -> q4, though -%% many of these steps are frequently skipped. q1 and q4 only hold -%% alphas, q2 and q3 hold both betas and gammas (as queues of queues, -%% using the bpqueue module where the block prefix determines whether -%% they're betas or gammas). When a message arrives, its -%% classification is determined. It is then added to the rightmost -%% appropriate queue. -%% -%% If a new message is determined to be a beta or gamma, q1 is -%% empty. If a new message is determined to be a delta, q1 and q2 are -%% empty (and actually q4 too). -%% -%% When removing messages from a queue, if q4 is empty then q3 is read -%% directly. If q3 becomes empty then the next segment's worth of -%% messages from delta are read into q3, reducing the size of -%% delta. If the queue is non empty, either q4 or q3 contain -%% entries. It is never permitted for delta to hold all the messages -%% in the queue. -%% -%% The duration indicated to us by the memory_monitor is used to -%% calculate, given our current ingress and egress rates, how many -%% messages we should hold in RAM. We track the ingress and egress -%% rates for both messages and pending acks and rates for both are -%% considered when calculating the number of messages to hold in -%% RAM. When we need to push alphas to betas or betas to gammas, we -%% favour writing out messages that are further from the head of the -%% queue. This minimises writes to disk, as the messages closer to the -%% tail of the queue stay in the queue for longer, thus do not need to -%% be replaced as quickly by sending other messages to disk. -%% -%% Whilst messages are pushed to disk and forgotten from RAM as soon -%% as requested by a new setting of the queue RAM duration, the -%% inverse is not true: we only load messages back into RAM as -%% demanded as the queue is read from. Thus only publishes to the -%% queue will take up available spare capacity. -%% -%% When we report our duration to the memory monitor, we calculate -%% average ingress and egress rates over the last two samples, and -%% then calculate our duration based on the sum of the ingress and -%% egress rates. More than two samples could be used, but it's a -%% balance between responding quickly enough to changes in -%% producers/consumers versus ignoring temporary blips. The problem -%% with temporary blips is that with just a few queues, they can have -%% substantial impact on the calculation of the average duration and -%% hence cause unnecessary I/O. Another alternative is to increase the -%% amqqueue_process:RAM_DURATION_UPDATE_PERIOD to beyond 5 -%% seconds. However, that then runs the risk of being too slow to -%% inform the memory monitor of changes. Thus a 5 second interval, -%% plus a rolling average over the last two samples seems to work -%% well in practice. -%% -%% The sum of the ingress and egress rates is used because the egress -%% rate alone is not sufficient. Adding in the ingress rate means that -%% queues which are being flooded by messages are given more memory, -%% resulting in them being able to process the messages faster (by -%% doing less I/O, or at least deferring it) and thus helping keep -%% their mailboxes empty and thus the queue as a whole is more -%% responsive. If such a queue also has fast but previously idle -%% consumers, the consumer can then start to be driven as fast as it -%% can go, whereas if only egress rate was being used, the incoming -%% messages may have to be written to disk and then read back in, -%% resulting in the hard disk being a bottleneck in driving the -%% consumers. Generally, we want to give Rabbit every chance of -%% getting rid of messages as fast as possible and remaining -%% responsive, and using only the egress rate impacts that goal. -%% -%% If a queue is full of transient messages, then the transition from -%% betas to deltas will be potentially very expensive as millions of -%% entries must be written to disk by the queue_index module. This can -%% badly stall the queue. In order to avoid this, the proportion of -%% gammas / (betas+gammas) must not be lower than (betas+gammas) / -%% (alphas+betas+gammas). As the queue grows or available memory -%% shrinks, the latter ratio increases, requiring the conversion of -%% more gammas to betas in order to maintain the invariant. At the -%% point at which betas and gammas must be converted to deltas, there -%% should be very few betas remaining, thus the transition is fast (no -%% work needs to be done for the gamma -> delta transition). -%% -%% The conversion of betas to gammas is done in batches of exactly -%% ?IO_BATCH_SIZE. This value should not be too small, otherwise the -%% frequent operations on the queues of q2 and q3 will not be -%% effectively amortised (switching the direction of queue access -%% defeats amortisation), nor should it be too big, otherwise -%% converting a batch stalls the queue for too long. Therefore, it -%% must be just right. ram_index_count is used here and is the number -%% of betas. -%% -%% The conversion from alphas to betas is also chunked, but only to -%% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at -%% any one time. This further smooths the effects of changes to the -%% target_ram_count and ensures the queue remains responsive -%% even when there is a large amount of IO work to do. The -%% idle_timeout callback is utilised to ensure that conversions are -%% done as promptly as possible whilst ensuring the queue remains -%% responsive. -%% -%% In the queue we keep track of both messages that are pending -%% delivery and messages that are pending acks. This ensures that -%% purging (deleting the former) and deletion (deleting the former and -%% the latter) are both cheap and do require any scanning through qi -%% segments. -%% -%% Pending acks are recorded in memory either as the tuple {SeqId, -%% Guid, MsgProps} (tuple-form) or as the message itself (message- -%% form). Acks for persistent messages are always stored in the tuple- -%% form. Acks for transient messages are also stored in tuple-form if -%% the message has been sent to disk as part of the memory reduction -%% process. For transient messages that haven't already been written -%% to disk, acks are stored in message-form. -%% -%% During memory reduction, acks stored in message-form are converted -%% to tuple-form, and the corresponding messages are pushed out to -%% disk. -%% -%% The order in which alphas are pushed to betas and message-form acks -%% are pushed to disk is determined dynamically. We always prefer to -%% push messages for the source (alphas or acks) that is growing the -%% fastest (with growth measured as avg. ingress - avg. egress). In -%% each round of memory reduction a chunk of messages at most -%% ?IO_BATCH_SIZE in size is allocated to be pushed to disk. The -%% fastest growing source will be reduced by as much of this chunk as -%% possible. If there is any remaining allocation in the chunk after -%% the first source has been reduced to zero, the second source will -%% be reduced by as much of the remaining chunk as possible. -%% -%% Notes on Clean Shutdown -%% (This documents behaviour in variable_queue, queue_index and -%% msg_store.) -%% -%% In order to try to achieve as fast a start-up as possible, if a -%% clean shutdown occurs, we try to save out state to disk to reduce -%% work on startup. In the msg_store this takes the form of the -%% index_module's state, plus the file_summary ets table, and client -%% refs. In the VQ, this takes the form of the count of persistent -%% messages in the queue and references into the msg_stores. The -%% queue_index adds to these terms the details of its segments and -%% stores the terms in the queue directory. -%% -%% Two message stores are used. One is created for persistent messages -%% to durable queues that must survive restarts, and the other is used -%% for all other messages that just happen to need to be written to -%% disk. On start up we can therefore nuke the transient message -%% store, and be sure that the messages in the persistent store are -%% all that we need. -%% -%% The references to the msg_stores are there so that the msg_store -%% knows to only trust its saved state if all of the queues it was -%% previously talking to come up cleanly. Likewise, the queues -%% themselves (esp queue_index) skips work in init if all the queues -%% and msg_store were shutdown cleanly. This gives both good speed -%% improvements and also robustness so that if anything possibly went -%% wrong in shutdown (or there was subsequent manual tampering), all -%% messages and queues that can be recovered are recovered, safely. -%% -%% To delete transient messages lazily, the variable_queue, on -%% startup, stores the next_seq_id reported by the queue_index as the -%% transient_threshold. From that point on, whenever it's reading a -%% message off disk via the queue_index, if the seq_id is below this -%% threshold and the message is transient then it drops the message -%% (the message itself won't exist on disk because it would have been -%% stored in the transient msg_store which would have had its saved -%% state nuked on startup). This avoids the expensive operation of -%% scanning the entire queue on startup in order to delete transient -%% messages that were only pushed to disk to save memory. -%% -%%---------------------------------------------------------------------------- - --behaviour(rabbit_backing_queue). - --record(vqstate, - { q1, - q2, - delta, - q3, - q4, - next_seq_id, - pending_ack, - pending_ack_index, - ram_ack_index, - index_state, - msg_store_clients, - on_sync, - durable, - transient_threshold, - - len, - persistent_count, - - target_ram_count, - ram_msg_count, - ram_msg_count_prev, - ram_ack_count_prev, - ram_index_count, - out_counter, - in_counter, - rates, - msgs_on_disk, - msg_indices_on_disk, - unconfirmed, - ack_out_counter, - ack_in_counter, - ack_rates - }). - --record(rates, { egress, ingress, avg_egress, avg_ingress, timestamp }). - --record(msg_status, - { seq_id, - guid, - msg, - is_persistent, - is_delivered, - msg_on_disk, - index_on_disk, - msg_props - }). - --record(delta, - { start_seq_id, %% start_seq_id is inclusive - count, - end_seq_id %% end_seq_id is exclusive - }). - --record(tx, { pending_messages, pending_acks }). - --record(sync, { acks_persistent, acks_all, pubs, funs }). - -%% When we discover, on publish, that we should write some indices to -%% disk for some betas, the IO_BATCH_SIZE sets the number of betas -%% that we must be due to write indices for before we do any work at -%% all. This is both a minimum and a maximum - we don't write fewer -%% than IO_BATCH_SIZE indices out in one go, and we don't write more - -%% we can always come back on the next publish to do more. --define(IO_BATCH_SIZE, 64). --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --type(seq_id() :: non_neg_integer()). --type(ack() :: seq_id()). - --type(rates() :: #rates { egress :: {timestamp(), non_neg_integer()}, - ingress :: {timestamp(), non_neg_integer()}, - avg_egress :: float(), - avg_ingress :: float(), - timestamp :: timestamp() }). - --type(delta() :: #delta { start_seq_id :: non_neg_integer(), - count :: non_neg_integer(), - end_seq_id :: non_neg_integer() }). - --type(sync() :: #sync { acks_persistent :: [[seq_id()]], - acks_all :: [[seq_id()]], - pubs :: [{message_properties_transformer(), - [rabbit_types:basic_message()]}], - funs :: [fun (() -> any())] }). - --type(state() :: #vqstate { - q1 :: queue(), - q2 :: bpqueue:bpqueue(), - delta :: delta(), - q3 :: bpqueue:bpqueue(), - q4 :: queue(), - next_seq_id :: seq_id(), - pending_ack :: dict(), - ram_ack_index :: gb_tree(), - index_state :: any(), - msg_store_clients :: 'undefined' | {{any(), binary()}, - {any(), binary()}}, - on_sync :: sync(), - durable :: boolean(), - - len :: non_neg_integer(), - persistent_count :: non_neg_integer(), - - transient_threshold :: non_neg_integer(), - target_ram_count :: non_neg_integer() | 'infinity', - ram_msg_count :: non_neg_integer(), - ram_msg_count_prev :: non_neg_integer(), - ram_index_count :: non_neg_integer(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), - rates :: rates(), - msgs_on_disk :: gb_set(), - msg_indices_on_disk :: gb_set(), - unconfirmed :: gb_set(), - ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer(), - ack_rates :: rates() }). - --include("rabbit_backing_queue_spec.hrl"). - --endif. - --define(BLANK_DELTA, #delta { start_seq_id = undefined, - count = 0, - end_seq_id = undefined }). --define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, - count = 0, - end_seq_id = Z }). - --define(BLANK_SYNC, #sync { acks_persistent = [], - acks_all = [], - pubs = [], - funs = [] }). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start(DurableQueues) -> - {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), - start_msg_store( - [Ref || Terms <- AllTerms, - begin - Ref = proplists:get_value(persistent_ref, Terms), - Ref =/= undefined - end], - StartFunState). - -stop() -> stop_msg_store(). - -start_msg_store(Refs, StartFunState) -> - ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, - [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), - undefined, {fun (ok) -> finished end, ok}]), - ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, - [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), - Refs, StartFunState]). - -stop_msg_store() -> - ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), - ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). - -init(QueueName, IsDurable, Recover) -> - Self = self(), - init(QueueName, IsDurable, Recover, - fun (Guids, ActionTaken) -> - msgs_written_to_disk(Self, Guids, ActionTaken) - end, - fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). - -init(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> - IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), - init(IsDurable, IndexState, 0, [], - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskFun); - false -> undefined - end, - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); - -init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> - Terms = rabbit_queue_index:shutdown_terms(QueueName), - {PRef, TRef, Terms1} = - case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of - [] -> {proplists:get_value(persistent_ref, Terms), - proplists:get_value(transient_ref, Terms), - Terms}; - _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} - end, - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef, - MsgOnDiskFun), - TransientClient = msg_store_client_init(?TRANSIENT_MSG_STORE, TRef, - undefined), - {DeltaCount, IndexState} = - rabbit_queue_index:recover( - QueueName, Terms1, - rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), - fun (Guid) -> - rabbit_msg_store:contains(Guid, PersistentClient) - end, - MsgIdxOnDiskFun), - init(true, IndexState, DeltaCount, Terms1, - PersistentClient, TransientClient). - -terminate(State) -> - State1 = #vqstate { persistent_count = PCount, - index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(true, tx_commit_index(State)), - PRef = case MSCStateP of - undefined -> undefined; - _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), - rabbit_msg_store:client_ref(MSCStateP) - end, - ok = rabbit_msg_store:client_terminate(MSCStateT), - TRef = rabbit_msg_store:client_ref(MSCStateT), - Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}, - {persistent_count, PCount}], - a(State1 #vqstate { index_state = rabbit_queue_index:terminate( - Terms, IndexState), - msg_store_clients = undefined }). - -%% the only difference between purge and delete is that delete also -%% needs to delete everything that's been delivered and not ack'd. -delete_and_terminate(State) -> - %% TODO: there is no need to interact with qi at all - which we do - %% as part of 'purge' and 'remove_pending_ack', other than - %% deleting it. - {_PurgeCount, State1} = purge(State), - State2 = #vqstate { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(false, State1), - IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), - case MSCStateP of - undefined -> ok; - _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) - end, - rabbit_msg_store:client_delete_and_terminate(MSCStateT), - a(State2 #vqstate { index_state = IndexState1, - msg_store_clients = undefined }). - -purge(State = #vqstate { q4 = Q4, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% TODO: when there are no pending acks, which is a common case, - %% we could simply wipe the qi instead of issuing delivers and - %% acks for all the messages. - {LensByStore, IndexState1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q4, - orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #vqstate { q1 = Q1, - index_state = IndexState2, - msg_store_clients = MSCState1 }} = - purge_betas_and_deltas(LensByStore, - State #vqstate { q4 = queue:new(), - index_state = IndexState1 }), - {LensByStore2, IndexState3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q1, - LensByStore1, IndexState2, MSCState1), - PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, a(State1 #vqstate { q1 = queue:new(), - index_state = IndexState3, - len = 0, - ram_msg_count = 0, - ram_index_count = 0, - persistent_count = PCount1 })}. - -publish(Msg, MsgProps, State) -> - {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), - a(reduce_memory_use(State1)). - -publish_delivered(false, #basic_message { guid = Guid }, - _MsgProps, State = #vqstate { len = 0 }) -> - blind_confirm(self(), gb_sets:singleton(Guid)), - {undefined, a(State)}; -publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, - guid = Guid }, - MsgProps = #message_properties { - needs_confirming = NeedsConfirming }, - State = #vqstate { len = 0, - next_seq_id = SeqId, - out_counter = OutCount, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = true }, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = record_pending_ack(m(MsgStatus1), State1), - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), - {SeqId, a(reduce_memory_use( - State2 #vqstate { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - unconfirmed = UC1 }))}. - -dropwhile(Pred, State) -> - {_OkOrEmpty, State1} = dropwhile1(Pred, State), - State1. - -dropwhile1(Pred, State) -> - internal_queue_out( - fun(MsgStatus = #msg_status { msg_props = MsgProps }, State1) -> - case Pred(MsgProps) of - true -> - {_, State2} = internal_fetch(false, MsgStatus, State1), - dropwhile1(Pred, State2); - false -> - %% message needs to go back into Q4 (or maybe go - %% in for the first time if it was loaded from - %% Q3). Also the msg contents might not be in - %% RAM, so read them in now - {MsgStatus1, State2 = #vqstate { q4 = Q4 }} = - read_msg(MsgStatus, State1), - {ok, State2 #vqstate {q4 = queue:in_r(MsgStatus1, Q4) }} - end - end, State). - -fetch(AckRequired, State) -> - internal_queue_out( - fun(MsgStatus, State1) -> - %% it's possible that the message wasn't read from disk - %% at this point, so read it in. - {MsgStatus1, State2} = read_msg(MsgStatus, State1), - internal_fetch(AckRequired, MsgStatus1, State2) - end, State). - -internal_queue_out(Fun, State = #vqstate { q4 = Q4 }) -> - case queue:out(Q4) of - {empty, _Q4} -> - case fetch_from_q3(State) of - {empty, State1} = Result -> a(State1), Result; - {loaded, {MsgStatus, State1}} -> Fun(MsgStatus, State1) - end; - {{value, MsgStatus}, Q4a} -> - Fun(MsgStatus, State #vqstate { q4 = Q4a }) - end. - -read_msg(MsgStatus = #msg_status { msg = undefined, - guid = Guid, - is_persistent = IsPersistent }, - State = #vqstate { ram_msg_count = RamMsgCount, - msg_store_clients = MSCState}) -> - {{ok, Msg = #basic_message {}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, Guid), - {MsgStatus #msg_status { msg = Msg }, - State #vqstate { ram_msg_count = RamMsgCount + 1, - msg_store_clients = MSCState1 }}; -read_msg(MsgStatus, State) -> - {MsgStatus, State}. - -internal_fetch(AckRequired, MsgStatus = #msg_status { - seq_id = SeqId, - guid = Guid, - msg = Msg, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - State = #vqstate {ram_msg_count = RamMsgCount, - out_counter = OutCount, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% 1. Mark it delivered if necessary - IndexState1 = maybe_write_delivered( - IndexOnDisk andalso not IsDelivered, - SeqId, IndexState), - - %% 2. Remove from msg_store and queue index, if necessary - Rem = fun () -> - ok = msg_store_remove(MSCState, IsPersistent, [Guid]) - end, - Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, - IndexState2 = - case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of - {false, true, false, _} -> Rem(), IndexState1; - {false, true, true, _} -> Rem(), Ack(); - { true, true, true, false} -> Ack(); - _ -> IndexState1 - end, - - %% 3. If an ack is required, add something sensible to PA - {AckTag, State1} = case AckRequired of - true -> StateN = record_pending_ack( - MsgStatus #msg_status { - is_delivered = true }, State), - {SeqId, StateN}; - false -> {undefined, State} - end, - - PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), - Len1 = Len - 1, - RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), - - {{Msg, IsDelivered, AckTag, Len1}, - a(State1 #vqstate { ram_msg_count = RamMsgCount1, - out_counter = OutCount + 1, - index_state = IndexState2, - len = Len1, - persistent_count = PCount1 })}. - -ack(AckTags, State) -> - a(ack(fun msg_store_remove/3, - fun (_, State0) -> State0 end, - AckTags, State)). - -tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, - State = #vqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> - Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), - case IsPersistent andalso IsDurable of - true -> MsgStatus = msg_status(true, undefined, Msg, MsgProps), - #msg_status { msg_on_disk = true } = - maybe_write_msg_to_disk(false, MsgStatus, MSCState); - false -> ok - end, - a(State). - -tx_ack(Txn, AckTags, State) -> - Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), - State. - -tx_rollback(Txn, State = #vqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), - erase_tx(Txn), - ok = case IsDurable of - true -> msg_store_remove(MSCState, true, persistent_guids(Pubs)); - false -> ok - end, - {lists:append(AckTags), a(State)}. - -tx_commit(Txn, Fun, MsgPropsFun, - State = #vqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), - erase_tx(Txn), - AckTags1 = lists:append(AckTags), - PersistentGuids = persistent_guids(Pubs), - HasPersistentPubs = PersistentGuids =/= [], - {AckTags1, - a(case IsDurable andalso HasPersistentPubs of - true -> ok = msg_store_sync( - MSCState, true, PersistentGuids, - msg_store_callback(PersistentGuids, Pubs, AckTags1, - Fun, MsgPropsFun)), - State; - false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, - Fun, MsgPropsFun, State) - end)}. - -requeue(AckTags, MsgPropsFun, State) -> - MsgPropsFun1 = fun (MsgProps) -> - (MsgPropsFun(MsgProps)) #message_properties { - needs_confirming = false } - end, - a(reduce_memory_use( - ack(fun msg_store_release/3, - fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> - {_SeqId, State2} = publish(Msg, MsgPropsFun1(MsgProps), - true, false, State1), - State2; - ({IsPersistent, Guid, MsgProps}, State1) -> - #vqstate { msg_store_clients = MSCState } = State1, - {{ok, Msg = #basic_message{}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, Guid), - State2 = State1 #vqstate { msg_store_clients = MSCState1 }, - {_SeqId, State3} = publish(Msg, MsgPropsFun1(MsgProps), - true, true, State2), - State3 - end, - AckTags, State))). - -len(#vqstate { len = Len }) -> Len. - -is_empty(State) -> 0 == len(State). - -set_ram_duration_target( - DurationTarget, State = #vqstate { - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate }, - target_ram_count = TargetRamCount }) -> - Rate = - AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, - TargetRamCount1 = - case DurationTarget of - infinity -> infinity; - _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec - end, - State1 = State #vqstate { target_ram_count = TargetRamCount1 }, - a(case TargetRamCount1 == infinity orelse - (TargetRamCount =/= infinity andalso - TargetRamCount1 >= TargetRamCount) of - true -> State1; - false -> reduce_memory_use(State1) - end). - -ram_duration(State = #vqstate { - rates = #rates { timestamp = Timestamp, - egress = Egress, - ingress = Ingress } = Rates, - ack_rates = #rates { timestamp = AckTimestamp, - egress = AckEgress, - ingress = AckIngress } = ARates, - in_counter = InCount, - out_counter = OutCount, - ack_in_counter = AckInCount, - ack_out_counter = AckOutCount, - ram_msg_count = RamMsgCount, - ram_msg_count_prev = RamMsgCountPrev, - ram_ack_index = RamAckIndex, - ram_ack_count_prev = RamAckCountPrev }) -> - Now = now(), - {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), - {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), - - {AvgAckEgressRate, AckEgress1} = - update_rate(Now, AckTimestamp, AckOutCount, AckEgress), - {AvgAckIngressRate, AckIngress1} = - update_rate(Now, AckTimestamp, AckInCount, AckIngress), - - RamAckCount = gb_trees:size(RamAckIndex), - - Duration = %% msgs+acks / (msgs+acks/sec) == sec - case AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso - AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0 of - true -> infinity; - false -> (RamMsgCountPrev + RamMsgCount + - RamAckCount + RamAckCountPrev) / - (4 * (AvgEgressRate + AvgIngressRate + - AvgAckEgressRate + AvgAckIngressRate)) - end, - - {Duration, State #vqstate { - rates = Rates #rates { - egress = Egress1, - ingress = Ingress1, - avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate, - timestamp = Now }, - ack_rates = ARates #rates { - egress = AckEgress1, - ingress = AckIngress1, - avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate, - timestamp = Now }, - in_counter = 0, - out_counter = 0, - ack_in_counter = 0, - ack_out_counter = 0, - ram_msg_count_prev = RamMsgCount, - ram_ack_count_prev = RamAckCount }}. - -needs_idle_timeout(State = #vqstate { on_sync = OnSync }) -> - case {OnSync, needs_index_sync(State)} of - {?BLANK_SYNC, false} -> - {Res, _State} = reduce_memory_use( - fun (_Quota, State1) -> {0, State1} end, - fun (_Quota, State1) -> State1 end, - fun (State1) -> State1 end, - fun (_Quota, State1) -> {0, State1} end, - State), - Res; - _ -> - true - end. - -idle_timeout(State) -> - a(reduce_memory_use(confirm_commit_index(tx_commit_index(State)))). - -handle_pre_hibernate(State = #vqstate { index_state = IndexState }) -> - State #vqstate { index_state = rabbit_queue_index:flush(IndexState) }. - -status(#vqstate { - q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - pending_ack = PA, - ram_ack_index = RAI, - on_sync = #sync { funs = From }, - target_ram_count = TargetRamCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, - next_seq_id = NextSeqId, - persistent_count = PersistentCount, - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate } }) -> - [ {q1 , queue:len(Q1)}, - {q2 , bpqueue:len(Q2)}, - {delta , Delta}, - {q3 , bpqueue:len(Q3)}, - {q4 , queue:len(Q4)}, - {len , Len}, - {pending_acks , dict:size(PA)}, - {outstanding_txns , length(From)}, - {target_ram_count , TargetRamCount}, - {ram_msg_count , RamMsgCount}, - {ram_ack_count , gb_trees:size(RAI)}, - {ram_index_count , RamIndexCount}, - {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount}, - {avg_ingress_rate , AvgIngressRate}, - {avg_egress_rate , AvgEgressRate}, - {avg_ack_ingress_rate, AvgAckIngressRate}, - {avg_ack_egress_rate , AvgAckEgressRate} ]. - -%%---------------------------------------------------------------------------- -%% Minor helpers -%%---------------------------------------------------------------------------- - -a(State = #vqstate { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - persistent_count = PersistentCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }) -> - E1 = queue:is_empty(Q1), - E2 = bpqueue:is_empty(Q2), - ED = Delta#delta.count == 0, - E3 = bpqueue:is_empty(Q3), - E4 = queue:is_empty(Q4), - LZ = Len == 0, - - true = E1 or not E3, - true = E2 or not ED, - true = ED or not E3, - true = LZ == (E3 and E4), - - true = Len >= 0, - true = PersistentCount >= 0, - true = RamMsgCount >= 0, - true = RamIndexCount >= 0, - - State. - -m(MsgStatus = #msg_status { msg = Msg, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }) -> - true = (not IsPersistent) or IndexOnDisk, - true = (not IndexOnDisk) or MsgOnDisk, - true = (Msg =/= undefined) or MsgOnDisk, - - MsgStatus. - -one_if(true ) -> 1; -one_if(false) -> 0. - -cons_if(true, E, L) -> [E | L]; -cons_if(false, _E, L) -> L. - -gb_sets_maybe_insert(false, _Val, Set) -> Set; -%% when requeueing, we re-add a guid to the unconfirmed set -gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). - -msg_status(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, - MsgProps) -> - #msg_status { seq_id = SeqId, guid = Guid, msg = Msg, - is_persistent = IsPersistent, is_delivered = false, - msg_on_disk = false, index_on_disk = false, - msg_props = MsgProps }. - -with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> - {Result, MSCStateP1} = Fun(MSCStateP), - {Result, {MSCStateP1, MSCStateT}}; -with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> - {Result, MSCStateT1} = Fun(MSCStateT), - {Result, {MSCStateP, MSCStateT1}}. - -with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> - {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, - fun (MSCState1) -> - {Fun(MSCState1), MSCState1} - end), - Res. - -msg_store_client_init(MsgStore, MsgOnDiskFun) -> - msg_store_client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). - -msg_store_client_init(MsgStore, Ref, MsgOnDiskFun) -> - rabbit_msg_store:client_init( - MsgStore, Ref, MsgOnDiskFun, - msg_store_close_fds_fun(MsgStore =:= ?PERSISTENT_MSG_STORE)). - -msg_store_write(MSCState, IsPersistent, Guid, Msg) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:write(Guid, Msg, MSCState1) end). - -msg_store_read(MSCState, IsPersistent, Guid) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:read(Guid, MSCState1) end). - -msg_store_remove(MSCState, IsPersistent, Guids) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:remove(Guids, MCSState1) end). - -msg_store_release(MSCState, IsPersistent, Guids) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:release(Guids, MCSState1) end). - -msg_store_sync(MSCState, IsPersistent, Guids, Callback) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:sync(Guids, Callback, MSCState1) end). - -msg_store_close_fds(MSCState, IsPersistent) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:close_all_indicated(MSCState1) end). - -msg_store_close_fds_fun(IsPersistent) -> - Self = self(), - fun () -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - Self, - fun (State = #vqstate { msg_store_clients = MSCState }) -> - {ok, MSCState1} = - msg_store_close_fds(MSCState, IsPersistent), - {[], State #vqstate { msg_store_clients = MSCState1 }} - end) - end. - -maybe_write_delivered(false, _SeqId, IndexState) -> - IndexState; -maybe_write_delivered(true, SeqId, IndexState) -> - rabbit_queue_index:deliver([SeqId], IndexState). - -lookup_tx(Txn) -> case get({txn, Txn}) of - undefined -> #tx { pending_messages = [], - pending_acks = [] }; - V -> V - end. - -store_tx(Txn, Tx) -> put({txn, Txn}, Tx). - -erase_tx(Txn) -> erase({txn, Txn}). - -persistent_guids(Pubs) -> - [Guid || {#basic_message { guid = Guid, - is_persistent = true }, _MsgProps} <- Pubs]. - -betas_from_index_entries(List, TransientThreshold, IndexState) -> - {Filtered, Delivers, Acks} = - lists:foldr( - fun ({Guid, SeqId, MsgProps, IsPersistent, IsDelivered}, - {Filtered1, Delivers1, Acks1}) -> - case SeqId < TransientThreshold andalso not IsPersistent of - true -> {Filtered1, - cons_if(not IsDelivered, SeqId, Delivers1), - [SeqId | Acks1]}; - false -> {[m(#msg_status { msg = undefined, - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true, - msg_props = MsgProps - }) | Filtered1], - Delivers1, - Acks1} - end - end, {[], [], []}, List), - {bpqueue:from_list([{true, Filtered}]), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -%% the first arg is the older delta -combine_deltas(?BLANK_DELTA_PATTERN(X), ?BLANK_DELTA_PATTERN(Y)) -> - ?BLANK_DELTA; -combine_deltas(?BLANK_DELTA_PATTERN(X), #delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = B) -> - true = Start + Count =< End, %% ASSERTION - B; -combine_deltas(#delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = A, ?BLANK_DELTA_PATTERN(Y)) -> - true = Start + Count =< End, %% ASSERTION - A; -combine_deltas(#delta { start_seq_id = StartLow, - count = CountLow, - end_seq_id = EndLow }, - #delta { start_seq_id = StartHigh, - count = CountHigh, - end_seq_id = EndHigh }) -> - Count = CountLow + CountHigh, - true = (StartLow =< StartHigh) %% ASSERTIONS - andalso ((StartLow + CountLow) =< EndLow) - andalso ((StartHigh + CountHigh) =< EndHigh) - andalso ((StartLow + Count) =< EndHigh), - #delta { start_seq_id = StartLow, count = Count, end_seq_id = EndHigh }. - -beta_fold(Fun, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). - -update_rate(Now, Then, Count, {OThen, OCount}) -> - %% avg over the current period and the previous - {1000000.0 * (Count + OCount) / timer:now_diff(Now, OThen), {Then, Count}}. - -%%---------------------------------------------------------------------------- -%% Internal major helpers for Public API -%%---------------------------------------------------------------------------- - -init(IsDurable, IndexState, DeltaCount, Terms, - PersistentClient, TransientClient) -> - {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), - - DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), - Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of - true -> ?BLANK_DELTA; - false -> #delta { start_seq_id = LowSeqId, - count = DeltaCount1, - end_seq_id = NextSeqId } - end, - Now = now(), - State = #vqstate { - q1 = queue:new(), - q2 = bpqueue:new(), - delta = Delta, - q3 = bpqueue:new(), - q4 = queue:new(), - next_seq_id = NextSeqId, - pending_ack = dict:new(), - ram_ack_index = gb_trees:empty(), - index_state = IndexState1, - msg_store_clients = {PersistentClient, TransientClient}, - on_sync = ?BLANK_SYNC, - durable = IsDurable, - transient_threshold = NextSeqId, - - len = DeltaCount1, - persistent_count = DeltaCount1, - - target_ram_count = infinity, - ram_msg_count = 0, - ram_msg_count_prev = 0, - ram_ack_count_prev = 0, - ram_index_count = 0, - out_counter = 0, - in_counter = 0, - rates = blank_rate(Now, DeltaCount1), - msgs_on_disk = gb_sets:new(), - msg_indices_on_disk = gb_sets:new(), - unconfirmed = gb_sets:new(), - ack_out_counter = 0, - ack_in_counter = 0, - ack_rates = blank_rate(Now, 0) }, - a(maybe_deltas_to_betas(State)). - -blank_rate(Timestamp, IngressLength) -> - #rates { egress = {Timestamp, 0}, - ingress = {Timestamp, IngressLength}, - avg_egress = 0.0, - avg_ingress = 0.0, - timestamp = Timestamp }. - -msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, MsgPropsFun) -> - Self = self(), - F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( - Self, fun (StateN) -> {[], tx_commit_post_msg_store( - true, Pubs, AckTags, - Fun, MsgPropsFun, StateN)} - end) - end, - fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( - fun () -> remove_persistent_messages( - PersistentGuids) - end, F) - end) - end. - -remove_persistent_messages(Guids) -> - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, undefined), - ok = rabbit_msg_store:remove(Guids, PersistentClient), - rabbit_msg_store:client_delete_and_terminate(PersistentClient). - -tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, - State = #vqstate { - on_sync = OnSync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - pending_ack = PA, - durable = IsDurable }) -> - PersistentAcks = - case IsDurable of - true -> [AckTag || AckTag <- AckTags, - case dict:fetch(AckTag, PA) of - #msg_status {} -> - false; - {IsPersistent, _Guid, _MsgProps} -> - IsPersistent - end]; - false -> [] - end, - case IsDurable andalso (HasPersistentPubs orelse PersistentAcks =/= []) of - true -> State #vqstate { - on_sync = #sync { - acks_persistent = [PersistentAcks | SPAcks], - acks_all = [AckTags | SAcks], - pubs = [{MsgPropsFun, Pubs} | SPubs], - funs = [Fun | SFuns] }}; - false -> State1 = tx_commit_index( - State #vqstate { - on_sync = #sync { - acks_persistent = [], - acks_all = [AckTags], - pubs = [{MsgPropsFun, Pubs}], - funs = [Fun] } }), - State1 #vqstate { on_sync = OnSync } - end. - -tx_commit_index(State = #vqstate { on_sync = ?BLANK_SYNC }) -> - State; -tx_commit_index(State = #vqstate { on_sync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - durable = IsDurable }) -> - PAcks = lists:append(SPAcks), - Acks = lists:append(SAcks), - Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), - {Msg, MsgProps} <- lists:reverse(PubsN)], - {SeqIds, State1 = #vqstate { index_state = IndexState }} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, - MsgProps}, - {SeqIdsAcc, State2}) -> - IsPersistent1 = IsDurable andalso IsPersistent, - {SeqId, State3} = - publish(Msg, MsgProps, false, IsPersistent1, State2), - {cons_if(IsPersistent1, SeqId, SeqIdsAcc), State3} - end, {PAcks, ack(Acks, State)}, Pubs), - IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), - [ Fun() || Fun <- lists:reverse(SFuns) ], - reduce_memory_use( - State1 #vqstate { index_state = IndexState1, on_sync = ?BLANK_SYNC }). - -purge_betas_and_deltas(LensByStore, - State = #vqstate { q3 = Q3, - index_state = IndexState, - msg_store_clients = MSCState }) -> - case bpqueue:is_empty(Q3) of - true -> {LensByStore, State}; - false -> {LensByStore1, IndexState1} = - remove_queue_entries(fun beta_fold/3, Q3, - LensByStore, IndexState, MSCState), - purge_betas_and_deltas(LensByStore1, - maybe_deltas_to_betas( - State #vqstate { - q3 = bpqueue:new(), - index_state = IndexState1 })) - end. - -remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> - {GuidsByStore, Delivers, Acks} = - Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), - ok = orddict:fold(fun (IsPersistent, Guids, ok) -> - msg_store_remove(MSCState, IsPersistent, Guids) - end, ok, GuidsByStore), - {sum_guids_by_store_to_len(LensByStore, GuidsByStore), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -remove_queue_entries1( - #msg_status { guid = Guid, seq_id = SeqId, - is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, - {GuidsByStore, Delivers, Acks}) -> - {case MsgOnDisk of - true -> rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore); - false -> GuidsByStore - end, - cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), - cons_if(IndexOnDisk, SeqId, Acks)}. - -sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> - orddict:fold( - fun (IsPersistent, Guids, LensByStore1) -> - orddict:update_counter(IsPersistent, length(Guids), LensByStore1) - end, LensByStore, GuidsByStore). - -%%---------------------------------------------------------------------------- -%% Internal gubbins for publishing -%%---------------------------------------------------------------------------- - -publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, - MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, MsgOnDisk, - State = #vqstate { q1 = Q1, q3 = Q3, q4 = Q4, - next_seq_id = SeqId, - len = Len, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - ram_msg_count = RamMsgCount, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = case bpqueue:is_empty(Q3) of - false -> State1 #vqstate { q1 = queue:in(m(MsgStatus1), Q1) }; - true -> State1 #vqstate { q4 = queue:in(m(MsgStatus1), Q4) } - end, - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), - {SeqId, State2 #vqstate { next_seq_id = SeqId + 1, - len = Len + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - ram_msg_count = RamMsgCount + 1, - unconfirmed = UC1 }}. - -maybe_write_msg_to_disk(_Force, MsgStatus = #msg_status { - msg_on_disk = true }, _MSCState) -> - MsgStatus; -maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { - msg = Msg, guid = Guid, - is_persistent = IsPersistent }, MSCState) - when Force orelse IsPersistent -> - Msg1 = Msg #basic_message { - %% don't persist any recoverable decoded properties - content = rabbit_binary_parser:clear_decoded_content( - Msg #basic_message.content)}, - ok = msg_store_write(MSCState, IsPersistent, Guid, Msg1), - MsgStatus #msg_status { msg_on_disk = true }; -maybe_write_msg_to_disk(_Force, MsgStatus, _MSCState) -> - MsgStatus. - -maybe_write_index_to_disk(_Force, MsgStatus = #msg_status { - index_on_disk = true }, IndexState) -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - {MsgStatus, IndexState}; -maybe_write_index_to_disk(Force, MsgStatus = #msg_status { - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_props = MsgProps}, IndexState) - when Force orelse IsPersistent -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - IndexState1 = rabbit_queue_index:publish( - Guid, SeqId, MsgProps, IsPersistent, IndexState), - {MsgStatus #msg_status { index_on_disk = true }, - maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; -maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> - {MsgStatus, IndexState}. - -maybe_write_to_disk(ForceMsg, ForceIndex, MsgStatus, - State = #vqstate { index_state = IndexState, - msg_store_clients = MSCState }) -> - MsgStatus1 = maybe_write_msg_to_disk(ForceMsg, MsgStatus, MSCState), - {MsgStatus2, IndexState1} = - maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), - {MsgStatus2, State #vqstate { index_state = IndexState1 }}. - -%%---------------------------------------------------------------------------- -%% Internal gubbins for acks -%%---------------------------------------------------------------------------- - -record_pending_ack(#msg_status { seq_id = SeqId, - guid = Guid, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - msg_props = MsgProps } = MsgStatus, - State = #vqstate { pending_ack = PA, - ram_ack_index = RAI, - ack_in_counter = AckInCount}) -> - {AckEntry, RAI1} = - case MsgOnDisk of - true -> {{IsPersistent, Guid, MsgProps}, RAI}; - false -> {MsgStatus, gb_trees:insert(SeqId, Guid, RAI)} - end, - PA1 = dict:store(SeqId, AckEntry, PA), - State #vqstate { pending_ack = PA1, - ram_ack_index = RAI1, - ack_in_counter = AckInCount + 1}. - -remove_pending_ack(KeepPersistent, - State = #vqstate { pending_ack = PA, - index_state = IndexState, - msg_store_clients = MSCState }) -> - {PersistentSeqIds, GuidsByStore} = - dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - State1 = State #vqstate { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, - case KeepPersistent of - true -> case orddict:find(false, GuidsByStore) of - error -> State1; - {ok, Guids} -> ok = msg_store_remove(MSCState, false, - Guids), - State1 - end; - false -> IndexState1 = - rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = msg_store_remove(MSCState, IsPersistent, Guids) - || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - State1 #vqstate { index_state = IndexState1 } - end. - -ack(_MsgStoreFun, _Fun, [], State) -> - State; -ack(MsgStoreFun, Fun, AckTags, State) -> - {{PersistentSeqIds, GuidsByStore}, - State1 = #vqstate { index_state = IndexState, - msg_store_clients = MSCState, - persistent_count = PCount, - ack_out_counter = AckOutCount }} = - lists:foldl( - fun (SeqId, {Acc, State2 = #vqstate { pending_ack = PA, - ram_ack_index = RAI }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, State2 #vqstate { - pending_ack = dict:erase(SeqId, PA), - ram_ack_index = - gb_trees:delete_any(SeqId, RAI)})} - end, {accumulate_ack_init(), State}, AckTags), - IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = MsgStoreFun(MSCState, IsPersistent, Guids) - || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( - orddict:new(), GuidsByStore)), - State1 #vqstate { index_state = IndexState1, - persistent_count = PCount1, - ack_out_counter = AckOutCount + length(AckTags) }. - -accumulate_ack_init() -> {[], orddict:new()}. - -accumulate_ack(_SeqId, #msg_status { is_persistent = false, %% ASSERTIONS - msg_on_disk = false, - index_on_disk = false }, - {PersistentSeqIdsAcc, GuidsByStore}) -> - {PersistentSeqIdsAcc, GuidsByStore}; -accumulate_ack(SeqId, {IsPersistent, Guid, _MsgProps}, - {PersistentSeqIdsAcc, GuidsByStore}) -> - {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), - rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore)}. - -find_persistent_count(LensByStore) -> - case orddict:find(true, LensByStore) of - error -> 0; - {ok, Len} -> Len - end. - -%%---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%%---------------------------------------------------------------------------- - -confirm_commit_index(State = #vqstate { index_state = IndexState }) -> - case needs_index_sync(State) of - true -> State #vqstate { - index_state = rabbit_queue_index:sync(IndexState) }; - false -> State - end. - -remove_confirms(GuidSet, State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - State #vqstate { msgs_on_disk = gb_sets:difference(MOD, GuidSet), - msg_indices_on_disk = gb_sets:difference(MIOD, GuidSet), - unconfirmed = gb_sets:difference(UC, GuidSet) }. - -needs_index_sync(#vqstate { msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - %% If UC is empty then by definition, MIOD and MOD are also empty - %% and there's nothing that can be pending a sync. - - %% If UC is not empty, then we want to find is_empty(UC - MIOD), - %% but the subtraction can be expensive. Thus instead, we test to - %% see if UC is a subset of MIOD. This can only be the case if - %% MIOD == UC, which would indicate that every message in UC is - %% also in MIOD and is thus _all_ pending on a msg_store sync, not - %% on a qi sync. Thus the negation of this is sufficient. Because - %% is_subset is short circuiting, this is more efficient than the - %% subtraction. - not (gb_sets:is_empty(UC) orelse gb_sets:is_subset(UC, MIOD)). - -msgs_confirmed(GuidSet, State) -> - {gb_sets:to_list(GuidSet), remove_confirms(GuidSet, State)}. - -blind_confirm(QPid, GuidSet) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (State) -> msgs_confirmed(GuidSet, State) end). - -msgs_written_to_disk(QPid, GuidSet, removed) -> - blind_confirm(QPid, GuidSet); -msgs_written_to_disk(QPid, GuidSet, written) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - msgs_confirmed(gb_sets:intersection(GuidSet, MIOD), - State #vqstate { - msgs_on_disk = - gb_sets:intersection( - gb_sets:union(MOD, GuidSet), UC) }) - end). - -msg_indices_written_to_disk(QPid, GuidSet) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - msgs_confirmed(gb_sets:intersection(GuidSet, MOD), - State #vqstate { - msg_indices_on_disk = - gb_sets:intersection( - gb_sets:union(MIOD, GuidSet), UC) }) - end). - -%%---------------------------------------------------------------------------- -%% Phase changes -%%---------------------------------------------------------------------------- - -%% Determine whether a reduction in memory use is necessary, and call -%% functions to perform the required phase changes. The function can -%% also be used to just do the former, by passing in dummy phase -%% change functions. -%% -%% The function does not report on any needed beta->delta conversions, -%% though the conversion function for that is called as necessary. The -%% reason is twofold. Firstly, this is safe because the conversion is -%% only ever necessary just after a transition to a -%% target_ram_count of zero or after an incremental alpha->beta -%% conversion. In the former case the conversion is performed straight -%% away (i.e. any betas present at the time are converted to deltas), -%% and in the latter case the need for a conversion is flagged up -%% anyway. Secondly, this is necessary because we do not have a -%% precise and cheap predicate for determining whether a beta->delta -%% conversion is necessary - due to the complexities of retaining up -%% one segment's worth of messages in q3 - and thus would risk -%% perpetually reporting the need for a conversion when no such -%% conversion is needed. That in turn could cause an infinite loop. -reduce_memory_use(_AlphaBetaFun, _BetaGammaFun, _BetaDeltaFun, _AckFun, - State = #vqstate {target_ram_count = infinity}) -> - {false, State}; -reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, - State = #vqstate { - ram_ack_index = RamAckIndex, - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount, - rates = #rates { avg_ingress = AvgIngress, - avg_egress = AvgEgress }, - ack_rates = #rates { avg_ingress = AvgAckIngress, - avg_egress = AvgAckEgress } - }) -> - - {Reduce, State1} = - case chunk_size(RamMsgCount + gb_trees:size(RamAckIndex), - TargetRamCount) of - 0 -> {false, State}; - %% Reduce memory of pending acks and alphas. The order is - %% determined based on which is growing faster. Whichever - %% comes second may very well get a quota of 0 if the - %% first manages to push out the max number of messages. - S1 -> {_, State2} = - lists:foldl(fun (ReduceFun, {QuotaN, StateN}) -> - ReduceFun(QuotaN, StateN) - end, - {S1, State}, - case (AvgAckIngress - AvgAckEgress) > - (AvgIngress - AvgEgress) of - true -> [AckFun, AlphaBetaFun]; - false -> [AlphaBetaFun, AckFun] - end), - {true, State2} - end, - - case State1 #vqstate.target_ram_count of - 0 -> {Reduce, BetaDeltaFun(State1)}; - _ -> case chunk_size(State1 #vqstate.ram_index_count, - permitted_ram_index_count(State1)) of - ?IO_BATCH_SIZE = S2 -> {true, BetaGammaFun(S2, State1)}; - _ -> {Reduce, State1} - end - end. - -limit_ram_acks(0, State) -> - {0, State}; -limit_ram_acks(Quota, State = #vqstate { pending_ack = PA, - ram_ack_index = RAI }) -> - case gb_trees:is_empty(RAI) of - true -> - {Quota, State}; - false -> - {SeqId, Guid, RAI1} = gb_trees:take_largest(RAI), - MsgStatus = #msg_status { - guid = Guid, %% ASSERTION - is_persistent = false, %% ASSERTION - msg_props = MsgProps } = dict:fetch(SeqId, PA), - {_, State1} = maybe_write_to_disk(true, false, MsgStatus, State), - limit_ram_acks(Quota - 1, - State1 #vqstate { - pending_ack = - dict:store(SeqId, {false, Guid, MsgProps}, PA), - ram_ack_index = RAI1 }) - end. - - -reduce_memory_use(State) -> - {_, State1} = reduce_memory_use(fun push_alphas_to_betas/2, - fun limit_ram_index/2, - fun push_betas_to_deltas/1, - fun limit_ram_acks/2, - State), - State1. - -limit_ram_index(Quota, State = #vqstate { q2 = Q2, q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Q2a, {Quota1, IndexState1}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q2, {Quota, IndexState}), - %% TODO: we shouldn't be writing index entries for messages that - %% can never end up in delta due them residing in the only segment - %% held by q3. - {Q3a, {Quota2, IndexState2}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q3, {Quota1, IndexState1}), - State #vqstate { q2 = Q2a, q3 = Q3a, - index_state = IndexState2, - ram_index_count = RamIndexCount - (Quota - Quota2) }. - -limit_ram_index(_MapFoldFilterFun, Q, {0, IndexState}) -> - {Q, {0, IndexState}}; -limit_ram_index(MapFoldFilterFun, Q, {Quota, IndexState}) -> - MapFoldFilterFun( - fun erlang:'not'/1, - fun (MsgStatus, {0, _IndexStateN}) -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - stop; - (MsgStatus, {N, IndexStateN}) when N > 0 -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - {MsgStatus1, IndexStateN1} = - maybe_write_index_to_disk(true, MsgStatus, IndexStateN), - {true, m(MsgStatus1), {N-1, IndexStateN1}} - end, {Quota, IndexState}, Q). - -permitted_ram_index_count(#vqstate { len = 0 }) -> - infinity; -permitted_ram_index_count(#vqstate { len = Len, - q2 = Q2, - q3 = Q3, - delta = #delta { count = DeltaCount } }) -> - BetaLen = bpqueue:len(Q2) + bpqueue:len(Q3), - BetaLen - trunc(BetaLen * BetaLen / (Len - DeltaCount)). - -chunk_size(Current, Permitted) - when Permitted =:= infinity orelse Permitted >= Current -> - 0; -chunk_size(Current, Permitted) -> - lists:min([Current - Permitted, ?IO_BATCH_SIZE]). - -fetch_from_q3(State = #vqstate { - q1 = Q1, - q2 = Q2, - delta = #delta { count = DeltaCount }, - q3 = Q3, - q4 = Q4, - ram_index_count = RamIndexCount}) -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - {empty, State}; - {{value, IndexOnDisk, MsgStatus}, Q3a} -> - RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), - true = RamIndexCount1 >= 0, %% ASSERTION - State1 = State #vqstate { q3 = Q3a, - ram_index_count = RamIndexCount1 }, - State2 = - case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of - {true, true} -> - %% q3 is now empty, it wasn't before; delta is - %% still empty. So q2 must be empty, and we - %% know q4 is empty otherwise we wouldn't be - %% loading from q3. As such, we can just set - %% q4 to Q1. - true = bpqueue:is_empty(Q2), %% ASSERTION - true = queue:is_empty(Q4), %% ASSERTION - State1 #vqstate { q1 = queue:new(), - q4 = Q1 }; - {true, false} -> - maybe_deltas_to_betas(State1); - {false, _} -> - %% q3 still isn't empty, we've not touched - %% delta, so the invariants between q1, q2, - %% delta and q3 are maintained - State1 - end, - {loaded, {MsgStatus, State2}} - end. - -maybe_deltas_to_betas(State = #vqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> - State; -maybe_deltas_to_betas(State = #vqstate { - q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - transient_threshold = TransientThreshold }) -> - #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = DeltaSeqIdEnd } = Delta, - DeltaSeqId1 = - lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), - DeltaSeqIdEnd]), - {List, IndexState1} = - rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), - {Q3a, IndexState2} = - betas_from_index_entries(List, TransientThreshold, IndexState1), - State1 = State #vqstate { index_state = IndexState2 }, - case bpqueue:len(Q3a) of - 0 -> - %% we ignored every message in the segment due to it being - %% transient and below the threshold - maybe_deltas_to_betas( - State1 #vqstate { - delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); - Q3aLen -> - Q3b = bpqueue:join(Q3, Q3a), - case DeltaCount - Q3aLen of - 0 -> - %% delta is now empty, but it wasn't before, so - %% can now join q2 onto q3 - State1 #vqstate { q2 = bpqueue:new(), - delta = ?BLANK_DELTA, - q3 = bpqueue:join(Q3b, Q2) }; - N when N > 0 -> - Delta1 = #delta { start_seq_id = DeltaSeqId1, - count = N, - end_seq_id = DeltaSeqIdEnd }, - State1 #vqstate { delta = Delta1, - q3 = Q3b } - end - end. - -push_alphas_to_betas(Quota, State) -> - {Quota1, State1} = maybe_push_q1_to_betas(Quota, State), - {Quota2, State2} = maybe_push_q4_to_betas(Quota1, State1), - {Quota2, State2}. - -maybe_push_q1_to_betas(Quota, State = #vqstate { q1 = Q1 }) -> - maybe_push_alphas_to_betas( - fun queue:out/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q3 = Q3, delta = #delta { count = 0 } }) -> - State1 #vqstate { q1 = Q1a, - q3 = bpqueue:in(IndexOnDisk, MsgStatus, Q3) }; - (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q2 = Q2 }) -> - State1 #vqstate { q1 = Q1a, - q2 = bpqueue:in(IndexOnDisk, MsgStatus, Q2) } - end, Quota, Q1, State). - -maybe_push_q4_to_betas(Quota, State = #vqstate { q4 = Q4 }) -> - maybe_push_alphas_to_betas( - fun queue:out_r/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q4a, State1 = #vqstate { q3 = Q3 }) -> - State1 #vqstate { q3 = bpqueue:in_r(IndexOnDisk, MsgStatus, Q3), - q4 = Q4a } - end, Quota, Q4, State). - -maybe_push_alphas_to_betas(_Generator, _Consumer, Quota, _Q, - State = #vqstate { - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount }) - when Quota =:= 0 orelse - TargetRamCount =:= infinity orelse - TargetRamCount >= RamMsgCount -> - {Quota, State}; -maybe_push_alphas_to_betas(Generator, Consumer, Quota, Q, State) -> - case Generator(Q) of - {empty, _Q} -> - {Quota, State}; - {{value, MsgStatus}, Qa} -> - {MsgStatus1 = #msg_status { msg_on_disk = true, - index_on_disk = IndexOnDisk }, - State1 = #vqstate { ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }} = - maybe_write_to_disk(true, false, MsgStatus, State), - MsgStatus2 = m(MsgStatus1 #msg_status { msg = undefined }), - RamIndexCount1 = RamIndexCount + one_if(not IndexOnDisk), - State2 = State1 #vqstate { ram_msg_count = RamMsgCount - 1, - ram_index_count = RamIndexCount1 }, - maybe_push_alphas_to_betas(Generator, Consumer, Quota - 1, Qa, - Consumer(MsgStatus2, Qa, State2)) - end. - -push_betas_to_deltas(State = #vqstate { q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Delta2, Q2a, RamIndexCount2, IndexState2} = - push_betas_to_deltas(fun (Q2MinSeqId) -> Q2MinSeqId end, - fun bpqueue:out/1, Q2, - RamIndexCount, IndexState), - {Delta3, Q3a, RamIndexCount3, IndexState3} = - push_betas_to_deltas(fun rabbit_queue_index:next_segment_boundary/1, - fun bpqueue:out_r/1, Q3, - RamIndexCount2, IndexState2), - Delta4 = combine_deltas(Delta3, combine_deltas(Delta, Delta2)), - State #vqstate { q2 = Q2a, - delta = Delta4, - q3 = Q3a, - index_state = IndexState3, - ram_index_count = RamIndexCount3 }. - -push_betas_to_deltas(LimitFun, Generator, Q, RamIndexCount, IndexState) -> - case bpqueue:out(Q) of - {empty, _Q} -> - {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk1, #msg_status { seq_id = MinSeqId }}, _Qa} -> - {{value, _IndexOnDisk2, #msg_status { seq_id = MaxSeqId }}, _Qb} = - bpqueue:out_r(Q), - Limit = LimitFun(MinSeqId), - case MaxSeqId < Limit of - true -> {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - false -> {Len, Qc, RamIndexCount1, IndexState1} = - push_betas_to_deltas(Generator, Limit, Q, 0, - RamIndexCount, IndexState), - {#delta { start_seq_id = Limit, - count = Len, - end_seq_id = MaxSeqId + 1 }, - Qc, RamIndexCount1, IndexState1} - end - end. - -push_betas_to_deltas(Generator, Limit, Q, Count, RamIndexCount, IndexState) -> - case Generator(Q) of - {empty, _Q} -> - {Count, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk, #msg_status { seq_id = SeqId }}, _Qa} - when SeqId < Limit -> - {Count, Q, RamIndexCount, IndexState}; - {{value, IndexOnDisk, MsgStatus}, Qa} -> - {RamIndexCount1, IndexState1} = - case IndexOnDisk of - true -> {RamIndexCount, IndexState}; - false -> {#msg_status { index_on_disk = true }, - IndexState2} = - maybe_write_index_to_disk(true, MsgStatus, - IndexState), - {RamIndexCount - 1, IndexState2} - end, - push_betas_to_deltas( - Generator, Limit, Qa, Count + 1, RamIndexCount1, IndexState1) - end. diff --git a/src/rabbit_vhost.erl b/src/rabbit_vhost.erl deleted file mode 100644 index efebef06..00000000 --- a/src/rabbit_vhost.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_vhost). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --export([add/1, delete/1, exists/1, list/0, with/2]). - --ifdef(use_specs). - --spec(add/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(delete/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(exists/1 :: (rabbit_types:vhost()) -> boolean()). --spec(list/0 :: () -> [rabbit_types:vhost()]). --spec(with/2 :: (rabbit_types:vhost(), rabbit_misc:thunk(A)) -> A). - --endif. - -%%---------------------------------------------------------------------------- - -add(VHostPath) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_vhost, VHostPath}) of - [] -> ok = mnesia:write(rabbit_vhost, - #vhost{virtual_host = VHostPath}, - write); - [_] -> mnesia:abort({vhost_already_exists, VHostPath}) - end - end, - fun (ok, true) -> - ok; - (ok, false) -> - [rabbit_exchange:declare( - rabbit_misc:r(VHostPath, exchange, Name), - Type, true, false, false, []) || - {Name,Type} <- - [{<<"">>, direct}, - {<<"amq.direct">>, direct}, - {<<"amq.topic">>, topic}, - {<<"amq.match">>, headers}, %% per 0-9-1 pdf - {<<"amq.headers">>, headers}, %% per 0-9-1 xml - {<<"amq.fanout">>, fanout}]], - ok - end), - rabbit_log:info("Added vhost ~p~n", [VHostPath]), - R. - -delete(VHostPath) -> - %% FIXME: We are forced to delete the queues and exchanges outside - %% the TX below. Queue deletion involves sending messages to the queue - %% process, which in turn results in further mnesia actions and - %% eventually the termination of that process. Exchange deletion causes - %% notifications which must be sent outside the TX - [{ok,_} = rabbit_amqqueue:delete(Q, false, false) || - Q <- rabbit_amqqueue:list(VHostPath)], - [ok = rabbit_exchange:delete(Name, false) || - #exchange{name = Name} <- rabbit_exchange:list(VHostPath)], - R = rabbit_misc:execute_mnesia_transaction( - with(VHostPath, fun () -> - ok = internal_delete(VHostPath) - end)), - rabbit_log:info("Deleted vhost ~p~n", [VHostPath]), - R. - -internal_delete(VHostPath) -> - lists:foreach( - fun ({Username, _, _, _}) -> - ok = rabbit_auth_backend_internal:clear_permissions(Username, - VHostPath) - end, - rabbit_auth_backend_internal:list_vhost_permissions(VHostPath)), - ok = mnesia:delete({rabbit_vhost, VHostPath}), - ok. - -exists(VHostPath) -> - mnesia:dirty_read({rabbit_vhost, VHostPath}) /= []. - -list() -> - mnesia:dirty_all_keys(rabbit_vhost). - -with(VHostPath, Thunk) -> - fun () -> - case mnesia:read({rabbit_vhost, VHostPath}) of - [] -> - mnesia:abort({no_such_vhost, VHostPath}); - [_V] -> - Thunk() - end - end. diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl deleted file mode 100644 index eba86a55..00000000 --- a/src/rabbit_writer.erl +++ /dev/null @@ -1,249 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_writer). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([start/5, start_link/5, mainloop/2, mainloop1/2]). --export([send_command/2, send_command/3, - send_command_sync/2, send_command_sync/3, - send_command_and_notify/4, send_command_and_notify/5]). --export([internal_send_command/4, internal_send_command/6]). - --record(wstate, {sock, channel, frame_max, protocol}). - --define(HIBERNATE_AFTER, 5000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(start_link/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(send_command/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_sync/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command_sync/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_and_notify/4 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record()) - -> 'ok'). --spec(send_command_and_notify/5 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record(), - rabbit_types:content()) - -> 'ok'). --spec(internal_send_command/4 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:protocol()) - -> 'ok'). --spec(internal_send_command/6 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -start_link(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn_link(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -mainloop(ReaderPid, State) -> - try - mainloop1(ReaderPid, State) - catch - exit:Error -> ReaderPid ! {channel_exit, #wstate.channel, Error} - end, - done. - -mainloop1(ReaderPid, State) -> - receive - Message -> ?MODULE:mainloop1(ReaderPid, handle_message(Message, State)) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, mainloop, [ReaderPid, State]) - end. - -handle_message({send_command, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - State; -handle_message({send_command, MethodRecord, Content}, State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord}}, State) -> - ok = internal_send_command_async(MethodRecord, State), - gen_server:reply(From, ok), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord, Content}}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - gen_server:reply(From, ok), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord, Content}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({inet_reply, _, ok}, State) -> - State; -handle_message({inet_reply, _, Status}, _State) -> - exit({writer, send_failed, Status}); -handle_message(Message, _State) -> - exit({writer, message_not_understood, Message}). - -%--------------------------------------------------------------------------- - -send_command(W, MethodRecord) -> - W ! {send_command, MethodRecord}, - ok. - -send_command(W, MethodRecord, Content) -> - W ! {send_command, MethodRecord, Content}, - ok. - -send_command_sync(W, MethodRecord) -> - call(W, {send_command_sync, MethodRecord}). - -send_command_sync(W, MethodRecord, Content) -> - call(W, {send_command_sync, MethodRecord, Content}). - -send_command_and_notify(W, Q, ChPid, MethodRecord) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord}, - ok. - -send_command_and_notify(W, Q, ChPid, MethodRecord, Content) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord, Content}, - ok. - -%--------------------------------------------------------------------------- - -call(Pid, Msg) -> - {ok, Res} = gen:call(Pid, '$gen_call', Msg, infinity), - Res. - -%--------------------------------------------------------------------------- - -assemble_frame(Channel, MethodRecord, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, none), - rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol). - -assemble_frames(Channel, MethodRecord, Content, FrameMax, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, Content), - MethodName = rabbit_misc:method_record_type(MethodRecord), - true = Protocol:method_has_content(MethodName), % assertion - MethodFrame = rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol), - ContentFrames = rabbit_binary_generator:build_simple_content_frames( - Channel, Content, FrameMax, Protocol), - [MethodFrame | ContentFrames]. - -%% We optimise delivery of small messages. Content-bearing methods -%% require at least three frames. Small messages always fit into -%% that. We hand their frames to the Erlang network functions in one -%% go, which may lead to somewhat more efficient processing in the -%% runtime and a greater chance of coalescing into fewer TCP packets. -%% -%% By contrast, for larger messages, split across many frames, we want -%% to allow interleaving of frames on different channels. Hence we -%% hand them to the Erlang network functions one frame at a time. -send_frames(Fun, Sock, Frames) when length(Frames) =< 3 -> - Fun(Sock, Frames); -send_frames(Fun, Sock, Frames) -> - lists:foldl(fun (Frame, ok) -> Fun(Sock, Frame); - (_Frame, Other) -> Other - end, ok, Frames). - -tcp_send(Sock, Data) -> - rabbit_misc:throw_on_error(inet_error, - fun () -> rabbit_net:send(Sock, Data) end). - -internal_send_command(Sock, Channel, MethodRecord, Protocol) -> - ok = tcp_send(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command(Sock, Channel, MethodRecord, Content, FrameMax, - Protocol) -> - ok = send_frames(fun tcp_send/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -%% gen_tcp:send/2 does a selective receive of {inet_reply, Sock, -%% Status} to obtain the result. That is bad when it is called from -%% the writer since it requires scanning of the writers possibly quite -%% large message queue. -%% -%% So instead we lift the code from prim_inet:send/2, which is what -%% gen_tcp:send/2 calls, do the first half here and then just process -%% the result code in handle_message/2 as and when it arrives. -%% -%% This means we may end up happily sending data down a closed/broken -%% socket, but that's ok since a) data in the buffers will be lost in -%% any case (so qualitatively we are no worse off than if we used -%% gen_tcp:send/2), and b) we do detect the changed socket status -%% eventually, i.e. when we get round to handling the result code. -%% -%% Also note that the port has bounded buffers and port_command blocks -%% when these are full. So the fact that we process the result -%% asynchronously does not impact flow control. -internal_send_command_async(MethodRecord, - #wstate{sock = Sock, - channel = Channel, - protocol = Protocol}) -> - ok = port_cmd(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command_async(MethodRecord, Content, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}) -> - ok = send_frames(fun port_cmd/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -port_cmd(Sock, Data) -> - true = try rabbit_net:port_command(Sock, Data) - catch error:Error -> exit({writer, send_failed, Error}) - end, - ok. diff --git a/src/supervisor2.erl b/src/supervisor2.erl deleted file mode 100644 index 1a240856..00000000 --- a/src/supervisor2.erl +++ /dev/null @@ -1,1015 +0,0 @@ -%% This file is a copy of supervisor.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is supervisor2 -%% -%% 2) there is a new strategy called -%% simple_one_for_one_terminate. This is exactly the same as for -%% simple_one_for_one, except that children *are* explicitly -%% terminated as per the shutdown component of the child_spec. -%% -%% 3) child specifications can contain, as the restart type, a tuple -%% {permanent, Delay} | {transient, Delay} where Delay >= 0. The -%% delay, in seconds, indicates what should happen if a child, upon -%% being restarted, exceeds the MaxT and MaxR parameters. Thus, if -%% a child exits, it is restarted as normal. If it exits -%% sufficiently quickly and often to exceed the boundaries set by -%% the MaxT and MaxR parameters, and a Delay is specified, then -%% rather than stopping the supervisor, the supervisor instead -%% continues and tries to start up the child again, Delay seconds -%% later. -%% -%% Note that you can never restart more frequently than the MaxT -%% and MaxR parameters allow: i.e. you must wait until *both* the -%% Delay has passed *and* the MaxT and MaxR parameters allow the -%% child to be restarted. -%% -%% Also note that the Delay is a *minimum*. There is no guarantee -%% that the child will be restarted within that time, especially if -%% other processes are dying and being restarted at the same time - -%% essentially we have to wait for the delay to have passed and for -%% the MaxT and MaxR parameters to permit the child to be -%% restarted. This may require waiting for longer than Delay. -%% -%% 4) Added an 'intrinsic' restart type. Like the transient type, this -%% type means the child should only be restarted if the child exits -%% abnormally. Unlike the transient type, if the child exits -%% normally, the supervisor itself also exits normally. If the -%% child is a supervisor and it exits normally (i.e. with reason of -%% 'shutdown') then the child's parent also exits normally. -%% -%% All modifications are (C) 2010-2011 VMware, Inc. -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(supervisor2). - --behaviour(gen_server). - -%% External exports --export([start_link/2,start_link/3, - start_child/2, restart_child/2, - delete_child/2, terminate_child/2, - which_children/1, find_child/2, - check_childspecs/1]). - --export([behaviour_info/1]). - -%% Internal exports --export([init/1, handle_call/3, handle_info/2, terminate/2, code_change/3]). --export([handle_cast/2]). --export([delayed_restart/2]). - --define(DICT, dict). - --record(state, {name, - strategy, - children = [], - dynamics = ?DICT:new(), - intensity, - period, - restarts = [], - module, - args}). - --record(child, {pid = undefined, % pid is undefined when child is not running - name, - mfa, - restart_type, - shutdown, - child_type, - modules = []}). - --define(is_simple(State), State#state.strategy =:= simple_one_for_one orelse - State#state.strategy =:= simple_one_for_one_terminate). --define(is_terminate_simple(State), - State#state.strategy =:= simple_one_for_one_terminate). - -behaviour_info(callbacks) -> - [{init,1}]; -behaviour_info(_Other) -> - undefined. - -%%% --------------------------------------------------- -%%% This is a general process supervisor built upon gen_server.erl. -%%% Servers/processes should/could also be built using gen_server.erl. -%%% SupName = {local, atom()} | {global, atom()}. -%%% --------------------------------------------------- -start_link(Mod, Args) -> - gen_server:start_link(?MODULE, {self, Mod, Args}, []). - -start_link(SupName, Mod, Args) -> - gen_server:start_link(SupName, ?MODULE, {SupName, Mod, Args}, []). - -%%% --------------------------------------------------- -%%% Interface functions. -%%% --------------------------------------------------- -start_child(Supervisor, ChildSpec) -> - call(Supervisor, {start_child, ChildSpec}). - -restart_child(Supervisor, Name) -> - call(Supervisor, {restart_child, Name}). - -delete_child(Supervisor, Name) -> - call(Supervisor, {delete_child, Name}). - -%%----------------------------------------------------------------- -%% Func: terminate_child/2 -%% Returns: ok | {error, Reason} -%% Note that the child is *always* terminated in some -%% way (maybe killed). -%%----------------------------------------------------------------- -terminate_child(Supervisor, Name) -> - call(Supervisor, {terminate_child, Name}). - -which_children(Supervisor) -> - call(Supervisor, which_children). - -find_child(Supervisor, Name) -> - [Pid || {Name1, Pid, _Type, _Modules} <- which_children(Supervisor), - Name1 =:= Name]. - -call(Supervisor, Req) -> - gen_server:call(Supervisor, Req, infinity). - -check_childspecs(ChildSpecs) when is_list(ChildSpecs) -> - case check_startspec(ChildSpecs) of - {ok, _} -> ok; - Error -> {error, Error} - end; -check_childspecs(X) -> {error, {badarg, X}}. - -delayed_restart(Supervisor, RestartDetails) -> - gen_server:cast(Supervisor, {delayed_restart, RestartDetails}). - -%%% --------------------------------------------------- -%%% -%%% Initialize the supervisor. -%%% -%%% --------------------------------------------------- -init({SupName, Mod, Args}) -> - process_flag(trap_exit, true), - case Mod:init(Args) of - {ok, {SupFlags, StartSpec}} -> - case init_state(SupName, SupFlags, Mod, Args) of - {ok, State} when ?is_simple(State) -> - init_dynamic(State, StartSpec); - {ok, State} -> - init_children(State, StartSpec); - Error -> - {stop, {supervisor_data, Error}} - end; - ignore -> - ignore; - Error -> - {stop, {bad_return, {Mod, init, Error}}} - end. - -init_children(State, StartSpec) -> - SupName = State#state.name, - case check_startspec(StartSpec) of - {ok, Children} -> - case start_children(Children, SupName) of - {ok, NChildren} -> - {ok, State#state{children = NChildren}}; - {error, NChildren} -> - terminate_children(NChildren, SupName), - {stop, shutdown} - end; - Error -> - {stop, {start_spec, Error}} - end. - -init_dynamic(State, [StartSpec]) -> - case check_startspec([StartSpec]) of - {ok, Children} -> - {ok, State#state{children = Children}}; - Error -> - {stop, {start_spec, Error}} - end; -init_dynamic(_State, StartSpec) -> - {stop, {bad_start_spec, StartSpec}}. - -%%----------------------------------------------------------------- -%% Func: start_children/2 -%% Args: Children = [#child] in start order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Purpose: Start all children. The new list contains #child's -%% with pids. -%% Returns: {ok, NChildren} | {error, NChildren} -%% NChildren = [#child] in termination order (reversed -%% start order) -%%----------------------------------------------------------------- -start_children(Children, SupName) -> start_children(Children, [], SupName). - -start_children([Child|Chs], NChildren, SupName) -> - case do_start_child(SupName, Child) of - {ok, Pid} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {ok, Pid, _Extra} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {error, Reason} -> - report_error(start_error, Reason, Child, SupName), - {error, lists:reverse(Chs) ++ [Child | NChildren]} - end; -start_children([], NChildren, _SupName) -> - {ok, NChildren}. - -do_start_child(SupName, Child) -> - #child{mfa = {M, F, A}} = Child, - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, What} -> {error, What}; - What -> {error, What} - end. - -do_start_child_i(M, F, A) -> - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, Error} -> - {error, Error}; - What -> - {error, What} - end. - - -%%% --------------------------------------------------- -%%% -%%% Callback functions. -%%% -%%% --------------------------------------------------- -handle_call({start_child, EArgs}, _From, State) when ?is_simple(State) -> - #child{mfa = {M, F, A}} = hd(State#state.children), - Args = A ++ EArgs, - case do_start_child_i(M, F, Args) of - {ok, Pid} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid, Extra}, NState}; - What -> - {reply, What, State} - end; - -%%% The requests terminate_child, delete_child and restart_child are -%%% invalid for simple_one_for_one and simple_one_for_one_terminate -%%% supervisors. -handle_call({_Req, _Data}, _From, State) when ?is_simple(State) -> - {reply, {error, State#state.strategy}, State}; - -handle_call({start_child, ChildSpec}, _From, State) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - {Resp, NState} = handle_start_child(Child, State), - {reply, Resp, NState}; - What -> - {reply, {error, What}, State} - end; - -handle_call({restart_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid, Extra}, NState}; - Error -> - {reply, Error, State} - end; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({delete_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - NState = remove_child(Child, State), - {reply, ok, NState}; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({terminate_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} -> - NChild = do_terminate(Child, State#state.name), - {reply, ok, replace_child(NChild, State)}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call(which_children, _From, State) when ?is_simple(State) -> - [#child{child_type = CT, modules = Mods}] = State#state.children, - Reply = lists:map(fun ({Pid, _}) -> {undefined, Pid, CT, Mods} end, - ?DICT:to_list(State#state.dynamics)), - {reply, Reply, State}; - -handle_call(which_children, _From, State) -> - Resp = - lists:map(fun (#child{pid = Pid, name = Name, - child_type = ChildType, modules = Mods}) -> - {Name, Pid, ChildType, Mods} - end, - State#state.children), - {reply, Resp, State}. - - -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) - when ?is_simple(State) -> - {ok, NState} = do_restart(RestartType, Reason, Child, State), - {noreply, NState}; -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) -> - case get_child(Child#child.name, State) of - {value, Child1} -> - {ok, NState} = do_restart(RestartType, Reason, Child1, State), - {noreply, NState}; - _ -> - {noreply, State} - end; - -%%% Hopefully cause a function-clause as there is no API function -%%% that utilizes cast. -handle_cast(null, State) -> - error_logger:error_msg("ERROR: Supervisor received cast-message 'null'~n", - []), - - {noreply, State}. - -%% -%% Take care of terminated children. -%% -handle_info({'EXIT', Pid, Reason}, State) -> - case restart_child(Pid, Reason, State) of - {ok, State1} -> - {noreply, State1}; - {shutdown, State1} -> - {stop, shutdown, State1} - end; - -handle_info(Msg, State) -> - error_logger:error_msg("Supervisor received unexpected message: ~p~n", - [Msg]), - {noreply, State}. -%% -%% Terminate this server. -%% -terminate(_Reason, State) when ?is_terminate_simple(State) -> - terminate_simple_children( - hd(State#state.children), State#state.dynamics, State#state.name), - ok; -terminate(_Reason, State) -> - terminate_children(State#state.children, State#state.name), - ok. - -%% -%% Change code for the supervisor. -%% Call the new call-back module and fetch the new start specification. -%% Combine the new spec. with the old. If the new start spec. is -%% not valid the code change will not succeed. -%% Use the old Args as argument to Module:init/1. -%% NOTE: This requires that the init function of the call-back module -%% does not have any side effects. -%% -code_change(_, State, _) -> - case (State#state.module):init(State#state.args) of - {ok, {SupFlags, StartSpec}} -> - case catch check_flags(SupFlags) of - ok -> - {Strategy, MaxIntensity, Period} = SupFlags, - update_childspec(State#state{strategy = Strategy, - intensity = MaxIntensity, - period = Period}, - StartSpec); - Error -> - {error, Error} - end; - ignore -> - {ok, State}; - Error -> - Error - end. - -check_flags({Strategy, MaxIntensity, Period}) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - ok; -check_flags(What) -> - {bad_flags, What}. - -update_childspec(State, StartSpec) when ?is_simple(State) -> - case check_startspec(StartSpec) of - {ok, [Child]} -> - {ok, State#state{children = [Child]}}; - Error -> - {error, Error} - end; - -update_childspec(State, StartSpec) -> - case check_startspec(StartSpec) of - {ok, Children} -> - OldC = State#state.children, % In reverse start order ! - NewC = update_childspec1(OldC, Children, []), - {ok, State#state{children = NewC}}; - Error -> - {error, Error} - end. - -update_childspec1([Child|OldC], Children, KeepOld) -> - case update_chsp(Child, Children) of - {ok,NewChildren} -> - update_childspec1(OldC, NewChildren, KeepOld); - false -> - update_childspec1(OldC, Children, [Child|KeepOld]) - end; -update_childspec1([], Children, KeepOld) -> - % Return them in (keeped) reverse start order. - lists:reverse(Children ++ KeepOld). - -update_chsp(OldCh, Children) -> - case lists:map(fun (Ch) when OldCh#child.name =:= Ch#child.name -> - Ch#child{pid = OldCh#child.pid}; - (Ch) -> - Ch - end, - Children) of - Children -> - false; % OldCh not found in new spec. - NewC -> - {ok, NewC} - end. - -%%% --------------------------------------------------- -%%% Start a new child. -%%% --------------------------------------------------- - -handle_start_child(Child, State) -> - case get_child(Child#child.name, State) of - false -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - Children = State#state.children, - {{ok, Pid}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {ok, Pid, Extra} -> - Children = State#state.children, - {{ok, Pid, Extra}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {error, What} -> - {{error, {What, Child}}, State} - end; - {value, OldChild} when OldChild#child.pid =/= undefined -> - {{error, {already_started, OldChild#child.pid}}, State}; - {value, _OldChild} -> - {{error, already_present}, State} - end. - -%%% --------------------------------------------------- -%%% Restart. A process has terminated. -%%% Returns: {ok, #state} | {shutdown, #state} -%%% --------------------------------------------------- - -restart_child(Pid, Reason, State) when ?is_simple(State) -> - case ?DICT:find(Pid, State#state.dynamics) of - {ok, Args} -> - [Child] = State#state.children, - RestartType = Child#child.restart_type, - {M, F, _} = Child#child.mfa, - NChild = Child#child{pid = Pid, mfa = {M, F, Args}}, - do_restart(RestartType, Reason, NChild, State); - error -> - {ok, State} - end; -restart_child(Pid, Reason, State) -> - Children = State#state.children, - case lists:keysearch(Pid, #child.pid, Children) of - {value, Child} -> - RestartType = Child#child.restart_type, - do_restart(RestartType, Reason, Child, State); - _ -> - {ok, State} - end. - -do_restart({RestartType, Delay}, Reason, Child, State) -> - case restart1(Child, State) of - {ok, NState} -> - {ok, NState}; - {terminate, NState} -> - {ok, _TRef} = timer:apply_after( - trunc(Delay*1000), ?MODULE, delayed_restart, - [self(), {{RestartType, Delay}, Reason, Child}]), - {ok, state_del_child(Child, NState)} - end; -do_restart(permanent, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(intrinsic, normal, Child, State) -> - {shutdown, state_del_child(Child, State)}; -do_restart(intrinsic, shutdown, Child = #child{child_type = supervisor}, - State) -> - {shutdown, state_del_child(Child, State)}; -do_restart(_, normal, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(_, shutdown, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(Type, Reason, Child, State) when Type =:= transient orelse - Type =:= intrinsic -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(temporary, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - NState = state_del_child(Child, State), - {ok, NState}. - -restart(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart/2); - {terminate, NState} -> - report_error(shutdown, reached_max_restart_intensity, - Child, State#state.name), - {shutdown, state_del_child(Child, NState)} - end. - -restart1(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart1/2); - {terminate, _NState} -> - %% we've reached the max restart intensity, but the - %% add_restart will have added to the restarts - %% field. Given we don't want to die here, we need to go - %% back to the old restarts field otherwise we'll never - %% attempt to restart later. - {terminate, State} - end. - -restart(Strategy, Child, State, Restart) - when Strategy =:= simple_one_for_one orelse - Strategy =:= simple_one_for_one_terminate -> - #child{mfa = {M, F, A}} = Child, - Dynamics = ?DICT:erase(Child#child.pid, State#state.dynamics), - case do_start_child_i(M, F, A) of - {ok, Pid} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {ok, Pid, _Extra} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {error, Error} -> - report_error(start_error, Error, Child, State#state.name), - Restart(Child, State) - end; -restart(one_for_one, Child, State, Restart) -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {ok, Pid, _Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {error, Reason} -> - report_error(start_error, Reason, Child, State#state.name), - Restart(Child, State) - end; -restart(rest_for_one, Child, State, Restart) -> - {ChAfter, ChBefore} = split_child(Child#child.pid, State#state.children), - ChAfter2 = terminate_children(ChAfter, State#state.name), - case start_children(ChAfter2, State#state.name) of - {ok, ChAfter3} -> - {ok, State#state{children = ChAfter3 ++ ChBefore}}; - {error, ChAfter3} -> - Restart(Child, State#state{children = ChAfter3 ++ ChBefore}) - end; -restart(one_for_all, Child, State, Restart) -> - Children1 = del_child(Child#child.pid, State#state.children), - Children2 = terminate_children(Children1, State#state.name), - case start_children(Children2, State#state.name) of - {ok, NChs} -> - {ok, State#state{children = NChs}}; - {error, NChs} -> - Restart(Child, State#state{children = NChs}) - end. - -%%----------------------------------------------------------------- -%% Func: terminate_children/2 -%% Args: Children = [#child] in termination order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Returns: NChildren = [#child] in -%% startup order (reversed termination order) -%%----------------------------------------------------------------- -terminate_children(Children, SupName) -> - terminate_children(Children, SupName, []). - -terminate_children([Child | Children], SupName, Res) -> - NChild = do_terminate(Child, SupName), - terminate_children(Children, SupName, [NChild | Res]); -terminate_children([], _SupName, Res) -> - Res. - -terminate_simple_children(Child, Dynamics, SupName) -> - dict:fold(fun (Pid, _Args, _Any) -> - do_terminate(Child#child{pid = Pid}, SupName) - end, ok, Dynamics), - ok. - -do_terminate(Child, SupName) when Child#child.pid =/= undefined -> - ReportError = fun (Reason) -> - report_error(shutdown_error, Reason, Child, SupName) - end, - case shutdown(Child#child.pid, Child#child.shutdown) of - ok -> - ok; - {error, normal} -> - case Child#child.restart_type of - permanent -> ReportError(normal); - {permanent, _Delay} -> ReportError(normal); - _ -> ok - end; - {error, OtherReason} -> - ReportError(OtherReason) - end, - Child#child{pid = undefined}; -do_terminate(Child, _SupName) -> - Child. - -%%----------------------------------------------------------------- -%% Shutdowns a child. We must check the EXIT value -%% of the child, because it might have died with another reason than -%% the wanted. In that case we want to report the error. We put a -%% monitor on the child an check for the 'DOWN' message instead of -%% checking for the 'EXIT' message, because if we check the 'EXIT' -%% message a "naughty" child, who does unlink(Sup), could hang the -%% supervisor. -%% Returns: ok | {error, OtherReason} (this should be reported) -%%----------------------------------------------------------------- -shutdown(Pid, brutal_kill) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, kill), - receive - {'DOWN', _MRef, process, Pid, killed} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end; - {error, Reason} -> - {error, Reason} - end; - -shutdown(Pid, Time) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, shutdown), %% Try to shutdown gracefully - receive - {'DOWN', _MRef, process, Pid, shutdown} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - after Time -> - exit(Pid, kill), %% Force termination. - receive - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end - end; - {error, Reason} -> - {error, Reason} - end. - -%% Help function to shutdown/2 switches from link to monitor approach -monitor_child(Pid) -> - - %% Do the monitor operation first so that if the child dies - %% before the monitoring is done causing a 'DOWN'-message with - %% reason noproc, we will get the real reason in the 'EXIT'-message - %% unless a naughty child has already done unlink... - erlang:monitor(process, Pid), - unlink(Pid), - - receive - %% If the child dies before the unlik we must empty - %% the mail-box of the 'EXIT'-message and the 'DOWN'-message. - {'EXIT', Pid, Reason} -> - receive - {'DOWN', _, process, Pid, _} -> - {error, Reason} - end - after 0 -> - %% If a naughty child did unlink and the child dies before - %% monitor the result will be that shutdown/2 receives a - %% 'DOWN'-message with reason noproc. - %% If the child should die after the unlink there - %% will be a 'DOWN'-message with a correct reason - %% that will be handled in shutdown/2. - ok - end. - - -%%----------------------------------------------------------------- -%% Child/State manipulating functions. -%%----------------------------------------------------------------- -state_del_child(#child{pid = Pid}, State) when ?is_simple(State) -> - NDynamics = ?DICT:erase(Pid, State#state.dynamics), - State#state{dynamics = NDynamics}; -state_del_child(Child, State) -> - NChildren = del_child(Child#child.name, State#state.children), - State#state{children = NChildren}. - -del_child(Name, [Ch|Chs]) when Ch#child.name =:= Name -> - [Ch#child{pid = undefined} | Chs]; -del_child(Pid, [Ch|Chs]) when Ch#child.pid =:= Pid -> - [Ch#child{pid = undefined} | Chs]; -del_child(Name, [Ch|Chs]) -> - [Ch|del_child(Name, Chs)]; -del_child(_, []) -> - []. - -%% Chs = [S4, S3, Ch, S1, S0] -%% Ret: {[S4, S3, Ch], [S1, S0]} -split_child(Name, Chs) -> - split_child(Name, Chs, []). - -split_child(Name, [Ch|Chs], After) when Ch#child.name =:= Name -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Pid, [Ch|Chs], After) when Ch#child.pid =:= Pid -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Name, [Ch|Chs], After) -> - split_child(Name, Chs, [Ch | After]); -split_child(_, [], After) -> - {lists:reverse(After), []}. - -get_child(Name, State) -> - lists:keysearch(Name, #child.name, State#state.children). -replace_child(Child, State) -> - Chs = do_replace_child(Child, State#state.children), - State#state{children = Chs}. - -do_replace_child(Child, [Ch|Chs]) when Ch#child.name =:= Child#child.name -> - [Child | Chs]; -do_replace_child(Child, [Ch|Chs]) -> - [Ch|do_replace_child(Child, Chs)]. - -remove_child(Child, State) -> - Chs = lists:keydelete(Child#child.name, #child.name, State#state.children), - State#state{children = Chs}. - -%%----------------------------------------------------------------- -%% Func: init_state/4 -%% Args: SupName = {local, atom()} | {global, atom()} | self -%% Type = {Strategy, MaxIntensity, Period} -%% Strategy = one_for_one | one_for_all | simple_one_for_one | -%% rest_for_one -%% MaxIntensity = integer() -%% Period = integer() -%% Mod :== atom() -%% Arsg :== term() -%% Purpose: Check that Type is of correct type (!) -%% Returns: {ok, #state} | Error -%%----------------------------------------------------------------- -init_state(SupName, Type, Mod, Args) -> - case catch init_state1(SupName, Type, Mod, Args) of - {ok, State} -> - {ok, State}; - Error -> - Error - end. - -init_state1(SupName, {Strategy, MaxIntensity, Period}, Mod, Args) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - {ok, #state{name = supname(SupName,Mod), - strategy = Strategy, - intensity = MaxIntensity, - period = Period, - module = Mod, - args = Args}}; -init_state1(_SupName, Type, _, _) -> - {invalid_type, Type}. - -validStrategy(simple_one_for_one_terminate) -> true; -validStrategy(simple_one_for_one) -> true; -validStrategy(one_for_one) -> true; -validStrategy(one_for_all) -> true; -validStrategy(rest_for_one) -> true; -validStrategy(What) -> throw({invalid_strategy, What}). - -validIntensity(Max) when is_integer(Max), - Max >= 0 -> true; -validIntensity(What) -> throw({invalid_intensity, What}). - -validPeriod(Period) when is_integer(Period), - Period > 0 -> true; -validPeriod(What) -> throw({invalid_period, What}). - -supname(self,Mod) -> {self(),Mod}; -supname(N,_) -> N. - -%%% ------------------------------------------------------ -%%% Check that the children start specification is valid. -%%% Shall be a six (6) tuple -%%% {Name, Func, RestartType, Shutdown, ChildType, Modules} -%%% where Name is an atom -%%% Func is {Mod, Fun, Args} == {atom, atom, list} -%%% RestartType is permanent | temporary | transient | -%%% intrinsic | {permanent, Delay} | -%%% {transient, Delay} where Delay >= 0 -%%% Shutdown = integer() | infinity | brutal_kill -%%% ChildType = supervisor | worker -%%% Modules = [atom()] | dynamic -%%% Returns: {ok, [#child]} | Error -%%% ------------------------------------------------------ - -check_startspec(Children) -> check_startspec(Children, []). - -check_startspec([ChildSpec|T], Res) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - case lists:keymember(Child#child.name, #child.name, Res) of - true -> {duplicate_child_name, Child#child.name}; - false -> check_startspec(T, [Child | Res]) - end; - Error -> Error - end; -check_startspec([], Res) -> - {ok, lists:reverse(Res)}. - -check_childspec({Name, Func, RestartType, Shutdown, ChildType, Mods}) -> - catch check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods); -check_childspec(X) -> {invalid_child_spec, X}. - -check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods) -> - validName(Name), - validFunc(Func), - validRestartType(RestartType), - validChildType(ChildType), - validShutdown(Shutdown, ChildType), - validMods(Mods), - {ok, #child{name = Name, mfa = Func, restart_type = RestartType, - shutdown = Shutdown, child_type = ChildType, modules = Mods}}. - -validChildType(supervisor) -> true; -validChildType(worker) -> true; -validChildType(What) -> throw({invalid_child_type, What}). - -validName(_Name) -> true. - -validFunc({M, F, A}) when is_atom(M), - is_atom(F), - is_list(A) -> true; -validFunc(Func) -> throw({invalid_mfa, Func}). - -validRestartType(permanent) -> true; -validRestartType(temporary) -> true; -validRestartType(transient) -> true; -validRestartType(intrinsic) -> true; -validRestartType({permanent, Delay}) -> validDelay(Delay); -validRestartType({transient, Delay}) -> validDelay(Delay); -validRestartType(RestartType) -> throw({invalid_restart_type, - RestartType}). - -validDelay(Delay) when is_number(Delay), - Delay >= 0 -> true; -validDelay(What) -> throw({invalid_delay, What}). - -validShutdown(Shutdown, _) - when is_integer(Shutdown), Shutdown > 0 -> true; -validShutdown(infinity, supervisor) -> true; -validShutdown(brutal_kill, _) -> true; -validShutdown(Shutdown, _) -> throw({invalid_shutdown, Shutdown}). - -validMods(dynamic) -> true; -validMods(Mods) when is_list(Mods) -> - lists:foreach(fun (Mod) -> - if - is_atom(Mod) -> ok; - true -> throw({invalid_module, Mod}) - end - end, - Mods); -validMods(Mods) -> throw({invalid_modules, Mods}). - -%%% ------------------------------------------------------ -%%% Add a new restart and calculate if the max restart -%%% intensity has been reached (in that case the supervisor -%%% shall terminate). -%%% All restarts accured inside the period amount of seconds -%%% are kept in the #state.restarts list. -%%% Returns: {ok, State'} | {terminate, State'} -%%% ------------------------------------------------------ - -add_restart(State) -> - I = State#state.intensity, - P = State#state.period, - R = State#state.restarts, - Now = erlang:now(), - R1 = add_restart([Now|R], Now, P), - State1 = State#state{restarts = R1}, - case length(R1) of - CurI when CurI =< I -> - {ok, State1}; - _ -> - {terminate, State1} - end. - -add_restart([R|Restarts], Now, Period) -> - case inPeriod(R, Now, Period) of - true -> - [R|add_restart(Restarts, Now, Period)]; - _ -> - [] - end; -add_restart([], _, _) -> - []. - -inPeriod(Time, Now, Period) -> - case difference(Time, Now) of - T when T > Period -> - false; - _ -> - true - end. - -%% -%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored) -%% Calculate the time elapsed in seconds between two timestamps. -%% If MegaSecs is equal just subtract Secs. -%% Else calculate the Mega difference and add the Secs difference, -%% note that Secs difference can be negative, e.g. -%% {827, 999999, 676} diff {828, 1, 653753} == > 2 secs. -%% -difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM -> - ((CurM - TimeM) * 1000000) + (CurS - TimeS); -difference({_, TimeS, _}, {_, CurS, _}) -> - CurS - TimeS. - -%%% ------------------------------------------------------ -%%% Error and progress reporting. -%%% ------------------------------------------------------ - -report_error(Error, Reason, Child, SupName) -> - ErrorMsg = [{supervisor, SupName}, - {errorContext, Error}, - {reason, Reason}, - {offender, extract_child(Child)}], - error_logger:error_report(supervisor_report, ErrorMsg). - - -extract_child(Child) -> - [{pid, Child#child.pid}, - {name, Child#child.name}, - {mfa, Child#child.mfa}, - {restart_type, Child#child.restart_type}, - {shutdown, Child#child.shutdown}, - {child_type, Child#child.child_type}]. - -report_progress(Child, SupName) -> - Progress = [{supervisor, SupName}, - {started, extract_child(Child)}], - error_logger:info_report(progress, Progress). diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl deleted file mode 100644 index 0d50683d..00000000 --- a/src/tcp_acceptor.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor). - --behaviour(gen_server). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {callback, sock, ref}). - -%%-------------------------------------------------------------------- - -start_link(Callback, LSock) -> - gen_server:start_link(?MODULE, {Callback, LSock}, []). - -%%-------------------------------------------------------------------- - -init({Callback, LSock}) -> - gen_server:cast(self(), accept), - {ok, #state{callback=Callback, sock=LSock}}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(accept, State) -> - ok = file_handle_cache:obtain(), - accept(State); - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({inet_async, LSock, Ref, {ok, Sock}}, - State = #state{callback={M,F,A}, sock=LSock, ref=Ref}) -> - - %% patch up the socket so it looks like one we got from - %% gen_tcp:accept/1 - {ok, Mod} = inet_db:lookup_socket(LSock), - inet_db:register_socket(Sock, Mod), - - try - %% report - {Address, Port} = inet_op(fun () -> inet:sockname(LSock) end), - {PeerAddress, PeerPort} = inet_op(fun () -> inet:peername(Sock) end), - error_logger:info_msg("accepted TCP connection on ~s:~p from ~s:~p~n", - [rabbit_misc:ntoab(Address), Port, - rabbit_misc:ntoab(PeerAddress), PeerPort]), - %% In the event that somebody floods us with connections we can spew - %% the above message at error_logger faster than it can keep up. - %% So error_logger's mailbox grows unbounded until we eat all the - %% memory available and crash. So here's a meaningless synchronous call - %% to the underlying gen_event mechanism - when it returns the mailbox - %% is drained. - gen_event:which_handlers(error_logger), - %% handle - file_handle_cache:transfer(apply(M, F, A ++ [Sock])), - ok = file_handle_cache:obtain() - catch {inet_error, Reason} -> - gen_tcp:close(Sock), - error_logger:error_msg("unable to accept TCP connection: ~p~n", - [Reason]) - end, - - %% accept more - accept(State); - -handle_info({inet_async, LSock, Ref, {error, closed}}, - State=#state{sock=LSock, ref=Ref}) -> - %% It would be wrong to attempt to restart the acceptor when we - %% know this will fail. - {stop, normal, State}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -accept(State = #state{sock=LSock}) -> - case prim_inet:async_accept(LSock, -1) of - {ok, Ref} -> {noreply, State#state{ref=Ref}}; - Error -> {stop, {cannot_accept, Error}, State} - end. diff --git a/src/tcp_acceptor_sup.erl b/src/tcp_acceptor_sup.erl deleted file mode 100644 index bf0eacd1..00000000 --- a/src/tcp_acceptor_sup.erl +++ /dev/null @@ -1,31 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - -start_link(Name, Callback) -> - supervisor:start_link({local,Name}, ?MODULE, Callback). - -init(Callback) -> - {ok, {{simple_one_for_one, 10, 10}, - [{tcp_acceptor, {tcp_acceptor, start_link, [Callback]}, - transient, brutal_kill, worker, [tcp_acceptor]}]}}. diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl deleted file mode 100644 index cd646969..00000000 --- a/src/tcp_listener.erl +++ /dev/null @@ -1,84 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener). - --behaviour(gen_server). - --export([start_link/8]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {sock, on_startup, on_shutdown, label}). - -%%-------------------------------------------------------------------- - -start_link(IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label) -> - gen_server:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label}, []). - -%%-------------------------------------------------------------------- - -init({IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - {M,F,A} = OnStartup, OnShutdown, Label}) -> - process_flag(trap_exit, true), - case gen_tcp:listen(Port, SocketOpts ++ [{ip, IPAddress}, - {active, false}]) of - {ok, LSock} -> - lists:foreach(fun (_) -> - {ok, _APid} = supervisor:start_child( - AcceptorSup, [LSock]) - end, - lists:duplicate(ConcurrentAcceptorCount, dummy)), - {ok, {LIPAddress, LPort}} = inet:sockname(LSock), - error_logger:info_msg( - "started ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(LIPAddress), LPort]), - apply(M, F, A ++ [IPAddress, Port]), - {ok, #state{sock = LSock, - on_startup = OnStartup, on_shutdown = OnShutdown, - label = Label}}; - {error, Reason} -> - error_logger:error_msg( - "failed to start ~s on ~s:~p - ~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port, Reason]), - {stop, {cannot_listen, IPAddress, Port, Reason}} - end. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state{sock=LSock, on_shutdown = {M,F,A}, label=Label}) -> - {ok, {IPAddress, Port}} = inet:sockname(LSock), - gen_tcp:close(LSock), - error_logger:info_msg("stopped ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port]), - apply(M, F, A ++ [IPAddress, Port]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl deleted file mode 100644 index 58c2f30c..00000000 --- a/src/tcp_listener_sup.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener_sup). - --behaviour(supervisor). - --export([start_link/7, start_link/8]). - --export([init/1]). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, Label) -> - start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, 1, Label). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label) -> - supervisor:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}). - -init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}) -> - %% This is gross. The tcp_listener needs to know about the - %% tcp_acceptor_sup, and the only way I can think of accomplishing - %% that without jumping through hoops is to register the - %% tcp_acceptor_sup. - Name = rabbit_misc:tcp_name(tcp_acceptor_sup, IPAddress, Port), - {ok, {{one_for_all, 10, 10}, - [{tcp_acceptor_sup, {tcp_acceptor_sup, start_link, - [Name, AcceptCallback]}, - transient, infinity, supervisor, [tcp_acceptor_sup]}, - {tcp_listener, {tcp_listener, start_link, - [IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, Name, - OnStartup, OnShutdown, Label]}, - transient, 16#ffffffff, worker, [tcp_listener]}]}}. diff --git a/src/test_sup.erl b/src/test_sup.erl deleted file mode 100644 index b4df1fd0..00000000 --- a/src/test_sup.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(test_sup). - --behaviour(supervisor2). - --export([test_supervisor_delayed_restart/0, - init/1, start_child/0]). - -test_supervisor_delayed_restart() -> - passed = with_sup(simple_one_for_one_terminate, - fun (SupPid) -> - {ok, _ChildPid} = - supervisor2:start_child(SupPid, []), - test_supervisor_delayed_restart(SupPid) - end), - passed = with_sup(one_for_one, fun test_supervisor_delayed_restart/1). - -test_supervisor_delayed_restart(SupPid) -> - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(10), - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(10), - timeout = ping_child(SupPid), - timer:sleep(1010), - ok = ping_child(SupPid), - passed. - -with_sup(RestartStrategy, Fun) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, [RestartStrategy]), - Res = Fun(SupPid), - exit(SupPid, shutdown), - rabbit_misc:unlink_and_capture_exit(SupPid), - Res. - -init([RestartStrategy]) -> - {ok, {{RestartStrategy, 1, 1}, - [{test, {test_sup, start_child, []}, {permanent, 1}, - 16#ffffffff, worker, [test_sup]}]}}. - -start_child() -> - {ok, proc_lib:spawn_link(fun run_child/0)}. - -ping_child(SupPid) -> - Ref = make_ref(), - with_child_pid(SupPid, fun(ChildPid) -> ChildPid ! {ping, Ref, self()} end), - receive {pong, Ref} -> ok - after 1000 -> timeout - end. - -exit_child(SupPid) -> - with_child_pid(SupPid, fun(ChildPid) -> exit(ChildPid, abnormal) end), - ok. - -with_child_pid(SupPid, Fun) -> - case supervisor2:which_children(SupPid) of - [{_Id, undefined, worker, [test_sup]}] -> ok; - [{_Id, ChildPid, worker, [test_sup]}] -> Fun(ChildPid); - [] -> ok - end. - -run_child() -> - receive {ping, Ref, Pid} -> Pid ! {pong, Ref}, - run_child() - end. diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl deleted file mode 100644 index 44e1e4b5..00000000 --- a/src/vm_memory_monitor.erl +++ /dev/null @@ -1,363 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% In practice Erlang shouldn't be allowed to grow to more than a half -%% of available memory. The pessimistic scenario is when the Erlang VM -%% has a single process that's consuming all memory. In such a case, -%% during garbage collection, Erlang tries to allocate a huge chunk of -%% continuous memory, which can result in a crash or heavy swapping. -%% -%% This module tries to warn Rabbit before such situations occur, so -%% that it has a higher chance to avoid running out of memory. - --module(vm_memory_monitor). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0, get_total_memory/0, get_vm_limit/0, - get_check_interval/0, set_check_interval/1, - get_vm_memory_high_watermark/0, set_vm_memory_high_watermark/1, - get_memory_limit/0]). - - --define(SERVER, ?MODULE). --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%% For an unknown OS, we assume that we have 1GB of memory. It'll be -%% wrong. Scale by vm_memory_high_watermark in configuration to get a -%% sensible value. --define(MEMORY_SIZE_FOR_UNKNOWN_OS, 1073741824). - --record(state, {total_memory, - memory_limit, - timeout, - timer, - alarmed - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (float()) -> {'ok', pid()} | {'error', any()}). --spec(update/0 :: () -> 'ok'). --spec(get_total_memory/0 :: () -> (non_neg_integer() | 'unknown')). --spec(get_vm_limit/0 :: () -> non_neg_integer()). --spec(get_memory_limit/0 :: () -> non_neg_integer()). --spec(get_check_interval/0 :: () -> non_neg_integer()). --spec(set_check_interval/1 :: (non_neg_integer()) -> 'ok'). --spec(get_vm_memory_high_watermark/0 :: () -> float()). --spec(set_vm_memory_high_watermark/1 :: (float()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -update() -> - gen_server:cast(?SERVER, update). - -get_total_memory() -> - get_total_memory(os:type()). - -get_vm_limit() -> - get_vm_limit(os:type()). - -get_check_interval() -> - gen_server:call(?MODULE, get_check_interval, infinity). - -set_check_interval(Fraction) -> - gen_server:call(?MODULE, {set_check_interval, Fraction}, infinity). - -get_vm_memory_high_watermark() -> - gen_server:call(?MODULE, get_vm_memory_high_watermark, infinity). - -set_vm_memory_high_watermark(Fraction) -> - gen_server:call(?MODULE, {set_vm_memory_high_watermark, Fraction}, - infinity). - -get_memory_limit() -> - gen_server:call(?MODULE, get_memory_limit, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -init([MemFraction]) -> - TotalMemory = - case get_total_memory() of - unknown -> - error_logger:warning_msg( - "Unknown total memory size for your OS ~p. " - "Assuming memory size is ~pMB.~n", - [os:type(), trunc(?MEMORY_SIZE_FOR_UNKNOWN_OS/1048576)]), - ?MEMORY_SIZE_FOR_UNKNOWN_OS; - M -> M - end, - MemLimit = get_mem_limit(MemFraction, TotalMemory), - error_logger:info_msg("Memory limit set to ~pMB.~n", - [trunc(MemLimit/1048576)]), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - State = #state { total_memory = TotalMemory, - memory_limit = MemLimit, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - alarmed = false}, - {ok, internal_update(State)}. - -handle_call(get_vm_memory_high_watermark, _From, State) -> - {reply, State#state.memory_limit / State#state.total_memory, State}; - -handle_call({set_vm_memory_high_watermark, MemFraction}, _From, State) -> - MemLimit = get_mem_limit(MemFraction, State#state.total_memory), - error_logger:info_msg("Memory alarm changed to ~p, ~p bytes.~n", - [MemFraction, MemLimit]), - {reply, ok, State#state{memory_limit = MemLimit}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_limit, _From, State) -> - {reply, State#state.memory_limit, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% Server Internals -%%---------------------------------------------------------------------------- - -internal_update(State = #state { memory_limit = MemLimit, - alarmed = Alarmed}) -> - MemUsed = erlang:memory(total), - NewAlarmed = MemUsed > MemLimit, - case {Alarmed, NewAlarmed} of - {false, true} -> - emit_update_info(set, MemUsed, MemLimit), - alarm_handler:set_alarm({vm_memory_high_watermark, []}); - {true, false} -> - emit_update_info(clear, MemUsed, MemLimit), - alarm_handler:clear_alarm(vm_memory_high_watermark); - _ -> - ok - end, - State #state {alarmed = NewAlarmed}. - -emit_update_info(State, MemUsed, MemLimit) -> - error_logger:info_msg( - "vm_memory_high_watermark ~p. Memory used:~p allowed:~p~n", - [State, MemUsed, MemLimit]). - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% According to http://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx -%% Windows has 2GB and 8TB of address space for 32 and 64 bit accordingly. -get_vm_limit({win32,_OSname}) -> - case erlang:system_info(wordsize) of - 4 -> 2*1024*1024*1024; %% 2 GB for 32 bits 2^31 - 8 -> 8*1024*1024*1024*1024 %% 8 TB for 64 bits 2^42 - end; - -%% On a 32-bit machine, if you're using more than 2 gigs of RAM you're -%% in big trouble anyway. -get_vm_limit(_OsType) -> - case erlang:system_info(wordsize) of - 4 -> 4*1024*1024*1024; %% 4 GB for 32 bits 2^32 - 8 -> 256*1024*1024*1024*1024 %% 256 TB for 64 bits 2^48 - %%http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_details - end. - -get_mem_limit(MemFraction, TotalMemory) -> - AvMem = lists:min([TotalMemory, get_vm_limit()]), - trunc(AvMem * MemFraction). - -%%---------------------------------------------------------------------------- -%% Internal Helpers -%%---------------------------------------------------------------------------- -cmd(Command) -> - Exec = hd(string:tokens(Command, " ")), - case os:find_executable(Exec) of - false -> throw({command_not_found, Exec}); - _ -> os:cmd(Command) - end. - -%% get_total_memory(OS) -> Total -%% Windows and Freebsd code based on: memsup:get_memory_usage/1 -%% Original code was part of OTP and released under "Erlang Public License". - -get_total_memory({unix,darwin}) -> - File = cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_mach/1, Lines)), - [PageSize, Inactive, Active, Free, Wired] = - [dict:fetch(Key, Dict) || - Key <- [page_size, 'Pages inactive', 'Pages active', 'Pages free', - 'Pages wired down']], - PageSize * (Inactive + Active + Free + Wired); - -get_total_memory({unix,freebsd}) -> - PageSize = freebsd_sysctl("vm.stats.vm.v_page_size"), - PageCount = freebsd_sysctl("vm.stats.vm.v_page_count"), - PageCount * PageSize; - -get_total_memory({win32,_OSname}) -> - %% Due to the Erlang print format bug, on Windows boxes the memory - %% size is broken. For example Windows 7 64 bit with 4Gigs of RAM - %% we get negative memory size: - %% > os_mon_sysinfo:get_mem_info(). - %% ["76 -1658880 1016913920 -1 -1021628416 2147352576 2134794240\n"] - %% Due to this bug, we don't actually know anything. Even if the - %% number is postive we can't be sure if it's correct. This only - %% affects us on os_mon versions prior to 2.2.1. - case application:get_key(os_mon, vsn) of - undefined -> - unknown; - {ok, Version} -> - case rabbit_misc:version_compare(Version, "2.2.1", lt) of - true -> %% os_mon is < 2.2.1, so we know nothing - unknown; - false -> - [Result|_] = os_mon_sysinfo:get_mem_info(), - {ok, [_MemLoad, TotPhys, _AvailPhys, - _TotPage, _AvailPage, _TotV, _AvailV], _RestStr} = - io_lib:fread("~d~d~d~d~d~d~d", Result), - TotPhys - end - end; - -get_total_memory({unix, linux}) -> - File = read_proc_file("/proc/meminfo"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_linux/1, Lines)), - dict:fetch('MemTotal', Dict); - -get_total_memory({unix, sunos}) -> - File = cmd("/usr/sbin/prtconf"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_sunos/1, Lines)), - dict:fetch('Memory size', Dict); - -get_total_memory({unix, aix}) -> - File = cmd("/usr/bin/vmstat -v"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_aix/1, Lines)), - dict:fetch('memory pages', Dict) * 4096; - -get_total_memory(_OsType) -> - unknown. - -%% A line looks like "Foo bar: 123456." -parse_line_mach(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. - -%% A line looks like "FooBar: 123456 kB" -parse_line_linux(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. - -%% A line looks like "Memory size: 1024 Megabytes" -parse_line_sunos(Line) -> - case string:tokens(Line, ":") of - [Name, RHS | _Rest] -> - [Value1 | UnitsRest] = string:tokens(RHS, " "), - Value2 = case UnitsRest of - ["Gigabytes"] -> - list_to_integer(Value1) * 1024 * 1024 * 1024; - ["Megabytes"] -> - list_to_integer(Value1) * 1024 * 1024; - ["Kilobytes"] -> - list_to_integer(Value1) * 1024; - _ -> - Value1 ++ UnitsRest %% no known units - end, - {list_to_atom(Name), Value2}; - [Name] -> {list_to_atom(Name), none} - end. - -%% Lines look like " 12345 memory pages" -%% or " 80.1 maxpin percentage" -parse_line_aix(Line) -> - [Value | NameWords] = string:tokens(Line, " "), - Name = string:join(NameWords, " "), - {list_to_atom(Name), - case lists:member($., Value) of - true -> trunc(list_to_float(Value)); - false -> list_to_integer(Value) - end}. - -freebsd_sysctl(Def) -> - list_to_integer(cmd("/sbin/sysctl -n " ++ Def) -- "\n"). - -%% file:read_file does not work on files in /proc as it seems to get -%% the size of the file first and then read that many bytes. But files -%% in /proc always have length 0, we just have to read until we get -%% eof. -read_proc_file(File) -> - {ok, IoDevice} = file:open(File, [read, raw]), - Res = read_proc_file(IoDevice, []), - file:close(IoDevice), - lists:flatten(lists:reverse(Res)). - --define(BUFFER_SIZE, 1024). -read_proc_file(IoDevice, Acc) -> - case file:read(IoDevice, ?BUFFER_SIZE) of - {ok, Res} -> read_proc_file(IoDevice, [Res | Acc]); - eof -> Acc - end. diff --git a/src/worker_pool.erl b/src/worker_pool.erl deleted file mode 100644 index e4f260cc..00000000 --- a/src/worker_pool.erl +++ /dev/null @@ -1,140 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool). - -%% Generic worker pool manager. -%% -%% Supports nested submission of jobs (nested jobs always run -%% immediately in current worker process). -%% -%% Possible future enhancements: -%% -%% 1. Allow priorities (basically, change the pending queue to a -%% priority_queue). - --behaviour(gen_server2). - --export([start_link/0, submit/1, submit_async/1, idle/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(submit/1 :: (fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/1 :: - (fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(state, { available, pending }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], - [{timeout, infinity}]). - -submit(Fun) -> - case get(worker_pool_worker) of - true -> worker_pool_worker:run(Fun); - _ -> Pid = gen_server2:call(?SERVER, next_free, infinity), - worker_pool_worker:submit(Pid, Fun) - end. - -submit_async(Fun) -> - gen_server2:cast(?SERVER, {run_async, Fun}). - -idle(WId) -> - gen_server2:cast(?SERVER, {idle, WId}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state { pending = queue:new(), available = queue:new() }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(next_free, From, State = #state { available = Avail, - pending = Pending }) -> - case queue:out(Avail) of - {empty, _Avail} -> - {noreply, - State #state { pending = queue:in({next_free, From}, Pending) }, - hibernate}; - {{value, WId}, Avail1} -> - {reply, get_worker_pid(WId), State #state { available = Avail1 }, - hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({idle, WId}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, case queue:out(Pending) of - {empty, _Pending} -> - State #state { available = queue:in(WId, Avail) }; - {{value, {next_free, From}}, Pending1} -> - gen_server2:reply(From, get_worker_pid(WId)), - State #state { pending = Pending1 }; - {{value, {run_async, Fun}}, Pending1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { pending = Pending1 } - end, hibernate}; - -handle_cast({run_async, Fun}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, - case queue:out(Avail) of - {empty, _Avail} -> - State #state { pending = queue:in({run_async, Fun}, Pending)}; - {{value, WId}, Avail1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { available = Avail1 } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. - -%%---------------------------------------------------------------------------- - -get_worker_pid(WId) -> - [{WId, Pid, _Type, _Modules} | _] = - lists:dropwhile(fun ({Id, _Pid, _Type, _Modules}) - when Id =:= WId -> false; - (_) -> true - end, - supervisor:which_children(worker_pool_sup)), - Pid. diff --git a/src/worker_pool_sup.erl b/src/worker_pool_sup.erl deleted file mode 100644 index 28c1adc6..00000000 --- a/src/worker_pool_sup.erl +++ /dev/null @@ -1,53 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_sup). - --behaviour(supervisor). - --export([start_link/0, start_link/1]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link() -> - start_link(erlang:system_info(schedulers)). - -start_link(WCount) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [WCount]). - -%%---------------------------------------------------------------------------- - -init([WCount]) -> - {ok, {{one_for_one, 10, 10}, - [{worker_pool, {worker_pool, start_link, []}, transient, - 16#ffffffff, worker, [worker_pool]} | - [{N, {worker_pool_worker, start_link, [N]}, transient, 16#ffffffff, - worker, [worker_pool_worker]} || N <- lists:seq(1, WCount)]]}}. diff --git a/src/worker_pool_worker.erl b/src/worker_pool_worker.erl deleted file mode 100644 index 78ab4df3..00000000 --- a/src/worker_pool_worker.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_worker). - --behaviour(gen_server2). - --export([start_link/1, submit/2, submit_async/2, run/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (any()) -> {'ok', pid()} | {'error', any()}). --spec(submit/2 :: (pid(), fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/2 :: - (pid(), fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). --spec(run/1 :: (fun (() -> A)) -> A; - ({atom(), atom(), [any()]}) -> any()). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(WId) -> - gen_server2:start_link(?MODULE, [WId], [{timeout, infinity}]). - -submit(Pid, Fun) -> - gen_server2:call(Pid, {submit, Fun}, infinity). - -submit_async(Pid, Fun) -> - gen_server2:cast(Pid, {submit_async, Fun}). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -run({M, F, A}) -> - apply(M, F, A); -run(Fun) -> - Fun(). - -%%---------------------------------------------------------------------------- - -init([WId]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - ok = worker_pool:idle(WId), - put(worker_pool_worker, true), - {ok, WId, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call({submit, Fun}, From, WId) -> - gen_server2:reply(From, run(Fun)), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({submit_async, Fun}, WId) -> - run(Fun), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_cast({set_maximum_since_use, Age}, WId) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, WId, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. -- cgit v1.2.1 From d003a2a12a016736e8aca7914240fa1dab02758b Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 9 Feb 2011 11:35:43 +0000 Subject: Renaming, cosmetics, and minor shuffling --- src/rabbit_channel.erl | 24 ++++++++++++------------ src/rabbit_reader.erl | 9 +++++---- 2 files changed, 17 insertions(+), 16 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 1521a69f..9a92e810 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -210,8 +210,7 @@ handle_call({info, Items}, _From, State) -> end; handle_call(terminate, _From, State) -> - {ok, State1} = maybe_rollback_and_notify(State), - %% ok = rabbit_writer:send_command_sync(WriterPid, #'channel.close_ok'{}), + {ok, State1} = maybe_rollback_and_notify_queues(State), {stop, normal, ok, State1}; handle_call(_Request, _From, State) -> @@ -227,7 +226,7 @@ handle_cast({method, Method, Content}, State) -> catch exit:Reason = #amqp_error{} -> MethodName = rabbit_misc:method_record_type(Method), - {stop, normal, rollback_and_notify_reader( + {stop, normal, rollback_and_notify_queues_and_reader( Reason#amqp_error{method = MethodName}, State)}; exit:normal -> {stop, normal, State}; @@ -305,7 +304,7 @@ handle_pre_hibernate(State = #ch{stats_timer = StatsTimer}) -> {hibernate, State#ch{stats_timer = StatsTimer1}}. terminate(Reason, State) -> - {Res, _State1} = maybe_rollback_and_notify(State), + {Res, _State1} = maybe_rollback_and_notify_queues(State), case Reason of normal -> ok = Res; shutdown -> ok = Res; @@ -351,9 +350,10 @@ return_ok(State, false, Msg) -> {reply, Msg, State}. ok_msg(true, _Msg) -> undefined; ok_msg(false, Msg) -> Msg. -rollback_and_notify_reader(Reason, State = #ch{channel = Channel, - reader_pid = Reader}) -> - {ok, State1} = maybe_rollback_and_notify(State), +rollback_and_notify_queues_and_reader(Reason, + State = #ch{channel = Channel, + reader_pid = Reader}) -> + {ok, State1} = maybe_rollback_and_notify_queues(State), Reader ! {channel_exit, Channel, Reason}, State1. @@ -1166,14 +1166,14 @@ internal_rollback(State = #ch{transaction_id = TxnKey, NewUAMQ = queue:join(UAQ, UAMQ), new_tx(State#ch{unacked_message_q = NewUAMQ}). -maybe_rollback_and_notify(State = #ch{state = unrolled}) -> +maybe_rollback_and_notify_queues(State = #ch{state = unrolled}) -> {ok, State}; -maybe_rollback_and_notify(State) -> - {rollback_and_notify(State), State#ch{state = unrolled}}. +maybe_rollback_and_notify_queues(State) -> + {rollback_and_notify_queues(State), State#ch{state = unrolled}}. -rollback_and_notify(State = #ch{transaction_id = none}) -> +rollback_and_notify_queues(State = #ch{transaction_id = none}) -> notify_queues(State); -rollback_and_notify(State) -> +rollback_and_notify_queues(State) -> notify_queues(internal_rollback(State)). fold_per_queue(F, Acc0, UAQ) -> diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index e376aae6..3f99ad5a 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -515,8 +515,8 @@ maybe_close(State = #v1{connection_state = closing, maybe_close(State) -> State. -termination_kind(normal) -> controlled; -termination_kind(_) -> uncontrolled. +termination_kind(normal) -> controlled; +termination_kind(_) -> uncontrolled. handle_frame(Type, 0, Payload, State = #v1{connection_state = CS, @@ -553,7 +553,6 @@ handle_frame(Type, Channel, Payload, put({channel, Channel}, {ChPid, NewAState}), case AnalyzedFrame of {method, 'channel.close', _} -> - ok = rabbit_channel:shutdown(ChPid), ok = rabbit_writer:internal_send_command( State#v1.sock, Channel, #'channel.close_ok'{}, Protocol), @@ -969,7 +968,9 @@ send_to_new_channel(Channel, AnalyzedFrame, State) -> process_channel_frame(Frame, ErrPid, Channel, ChPid, AState) -> case rabbit_command_assembler:process(Frame, AState) of {ok, NewAState} -> NewAState; - {ok, #'channel.close'{}, NewAState} -> NewAState; + {ok, #'channel.close'{}, NewAState} -> ok = rabbit_channel:shutdown( + ChPid), + NewAState; {ok, Method, NewAState} -> rabbit_channel:do(ChPid, Method), NewAState; {ok, Method, Content, NewAState} -> rabbit_channel:do( -- cgit v1.2.1 From b2ed02843b281039809de601423357c5607779f8 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 9 Feb 2011 14:01:42 -0800 Subject: Now it's dying in rabbitmq initialization. At a loss to figure out the problem. --- Makefile | 2 ++ src/rabbit_mnesia_queue.erl | 11 +---------- src/rabbit_ram_queue.erl | 2 -- 3 files changed, 3 insertions(+), 12 deletions(-) diff --git a/Makefile b/Makefile index 0693035f..d143f3a7 100644 --- a/Makefile +++ b/Makefile @@ -112,6 +112,8 @@ $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_c dialyze: $(BEAM_TARGETS) $(BASIC_PLT) dialyzer --plt $(BASIC_PLT) --no_native \ + -Wunmatched_returns -Werror_handling -Wbehaviours \ + -Wunderspecs \ -Wrace_conditions $(BEAM_TARGETS) # rabbit.plt is used by rabbitmq-erlang-client's dialyze make target diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 73af27f6..09501f5c 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -297,7 +297,7 @@ purge(S = #s { q_table = QTable }) -> % rabbit_log:info("purge(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), - internal_purge(S), + clear_table(QTable), {LQ, S} end), % rabbit_log:info("purge ->~n ~p", [Result]), @@ -702,15 +702,6 @@ delete_nonpersistent_msgs(QTable) -> end, mnesia:all_keys(QTable)). -%% internal_purge/1 purges all messages. - --spec internal_purge(state()) -> ok. - -internal_purge(S) -> case q_pop(S) of - empty -> ok; - _ -> internal_purge(S) - end. - %% internal_fetch/2 fetches the next msg, if any, inside an Mnesia %% transaction, generating a pending ack as necessary. diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index ee12f3eb..2446f1ce 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -43,8 +43,6 @@ %% TODO: Need to provide better back-pressure when queue is filling up. -%% BUG: p_records do not need a separate seq_id. - -behaviour(rabbit_backing_queue). %% The S record is the in-RAM AMQP queue state. It contains the queue -- cgit v1.2.1 -- cgit v1.2.1 From e5f19cd56fcbc6d143cad9f88301ee8c102c8c15 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 9 Feb 2011 16:57:09 -0800 Subject: Looking for problem with tests. --- src/rabbit_ram_queue.erl | 1121 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1121 insertions(+) create mode 100644 src/rabbit_ram_queue.erl diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl new file mode 100644 index 00000000..ef455fcd --- /dev/null +++ b/src/rabbit_ram_queue.erl @@ -0,0 +1,1121 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. +%% + +-module(rabbit_ram_queue). + +-export([init/3, terminate/1, delete_and_terminate/1, + purge/1, publish/3, publish_delivered/4, fetch/2, ack/2, + tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, + requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, + needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, + status/1]). + +-export([start/1, stop/0]). + +-export([start_msg_store/2, stop_msg_store/0, init/5]). + +-behaviour(rabbit_backing_queue). + +-record(s, + { q1, + q2, + delta, + q3, + q4, + next_seq_id, + pending_ack, + pending_ack_index, + ram_ack_index, + index_s, + msg_store_clients, + on_sync, + durable, + transient_threshold, + + len, + persistent_count, + + ram_msg_count, + ram_index_count, + msgs_on_disk, + msg_indices_on_disk, + unconfirmed + }). + +-record(m, + { seq_id, + guid, + msg, + is_persistent, + is_delivered, + msg_on_disk, + index_on_disk, + msg_props + }). + +-record(delta, + { start_seq_id, %% start_seq_id is inclusive + count, + end_seq_id %% end_seq_id is exclusive + }). + +-record(tx, { pending_messages, pending_acks }). + +-record(sync, { acks_persistent, acks_all, pubs, funs }). + +-define(IO_BATCH_SIZE, 64). +-define(PERSISTENT_MSG_STORE, msg_store_persistent). +-define(TRANSIENT_MSG_STORE, msg_store_transient). + +-include("rabbit.hrl"). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-type(seq_id() :: non_neg_integer()). +-type(ack() :: seq_id()). + +-type(delta() :: #delta { start_seq_id :: non_neg_integer(), + count :: non_neg_integer(), + end_seq_id :: non_neg_integer() }). + +-type(sync() :: #sync { acks_persistent :: [[seq_id()]], + acks_all :: [[seq_id()]], + pubs :: [{message_properties_transformer(), + [rabbit_types:basic_message()]}], + funs :: [fun (() -> any())] }). + +-type(s() :: #s { + q1 :: queue(), + q2 :: bpqueue:bpqueue(), + delta :: delta(), + q3 :: bpqueue:bpqueue(), + q4 :: queue(), + next_seq_id :: seq_id(), + pending_ack :: dict(), + ram_ack_index :: gb_tree(), + index_s :: any(), + msg_store_clients :: 'undefined' | {{any(), binary()}, + {any(), binary()}}, + on_sync :: sync(), + durable :: boolean(), + + len :: non_neg_integer(), + persistent_count :: non_neg_integer(), + + transient_threshold :: non_neg_integer(), + ram_msg_count :: non_neg_integer(), + ram_index_count :: non_neg_integer(), + msgs_on_disk :: gb_set(), + msg_indices_on_disk :: gb_set(), + unconfirmed :: gb_set() }). +-type(state() :: s()). + +-include("rabbit_backing_queue_spec.hrl"). + +-endif. + +-define(BLANK_DELTA, #delta { start_seq_id = undefined, + count = 0, + end_seq_id = undefined }). +-define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, + count = 0, + end_seq_id = Z }). + +-define(BLANK_SYNC, #sync { acks_persistent = [], + acks_all = [], + pubs = [], + funs = [] }). + +%%---------------------------------------------------------------------------- +%% Public API +%%---------------------------------------------------------------------------- + +start(DurableQueues) -> + {AllTerms, StartFunS} = rabbit_queue_index:recover(DurableQueues), + start_msg_store( + [Ref || Terms <- AllTerms, + begin + Ref = proplists:get_value(persistent_ref, Terms), + Ref =/= undefined + end], + StartFunS). + +stop() -> stop_msg_store(). + +start_msg_store(Refs, StartFunS) -> + ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, + [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), + undefined, {fun (ok) -> finished end, ok}]), + ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, + [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), + Refs, StartFunS]). + +stop_msg_store() -> + ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), + ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). + +init(QueueName, IsDurable, Recover) -> + Self = self(), + init(QueueName, IsDurable, Recover, + fun (Guids, ActionTaken) -> + msgs_written_to_disk(Self, Guids, ActionTaken) + end, + fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). + +init(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> + IndexS = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), + init(IsDurable, IndexS, 0, [], + case IsDurable of + true -> msg_store_client_init(?PERSISTENT_MSG_STORE, + MsgOnDiskFun); + false -> undefined + end, + msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); + +init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> + Terms = rabbit_queue_index:shutdown_terms(QueueName), + {PRef, TRef, Terms1} = + case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of + [] -> {proplists:get_value(persistent_ref, Terms), + proplists:get_value(transient_ref, Terms), + Terms}; + _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} + end, + PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef, + MsgOnDiskFun), + TransientClient = msg_store_client_init(?TRANSIENT_MSG_STORE, TRef, + undefined), + {DeltaCount, IndexS} = + rabbit_queue_index:recover( + QueueName, Terms1, + rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), + fun (Guid) -> + rabbit_msg_store:contains(Guid, PersistentClient) + end, + MsgIdxOnDiskFun), + init(true, IndexS, DeltaCount, Terms1, + PersistentClient, TransientClient). + +terminate(S) -> + S1 = #s { persistent_count = PCount, + index_s = IndexS, + msg_store_clients = {MSCSP, MSCST} } = + remove_pending_ack(true, tx_commit_index(S)), + PRef = case MSCSP of + undefined -> undefined; + _ -> ok = rabbit_msg_store:client_terminate(MSCSP), + rabbit_msg_store:client_ref(MSCSP) + end, + ok = rabbit_msg_store:client_terminate(MSCST), + TRef = rabbit_msg_store:client_ref(MSCST), + Terms = [{persistent_ref, PRef}, + {transient_ref, TRef}, + {persistent_count, PCount}], + a(S1 #s { index_s = rabbit_queue_index:terminate( + Terms, IndexS), + msg_store_clients = undefined }). + +delete_and_terminate(S) -> + {_PurgeCount, S1} = purge(S), + S2 = #s { index_s = IndexS, + msg_store_clients = {MSCSP, MSCST} } = + remove_pending_ack(false, S1), + IndexS1 = rabbit_queue_index:delete_and_terminate(IndexS), + case MSCSP of + undefined -> ok; + _ -> rabbit_msg_store:client_delete_and_terminate(MSCSP) + end, + rabbit_msg_store:client_delete_and_terminate(MSCST), + a(S2 #s { index_s = IndexS1, + msg_store_clients = undefined }). + +purge(S = #s { q4 = Q4, + index_s = IndexS, + msg_store_clients = MSCS, + len = Len, + persistent_count = PCount }) -> + {LensByStore, IndexS1} = remove_queue_entries( + fun rabbit_misc:queue_fold/3, Q4, + orddict:new(), IndexS, MSCS), + {LensByStore1, S1 = #s { q1 = Q1, + index_s = IndexS2, + msg_store_clients = MSCS1 }} = + purge_betas_and_deltas(LensByStore, + S #s { q4 = queue:new(), + index_s = IndexS1 }), + {LensByStore2, IndexS3} = remove_queue_entries( + fun rabbit_misc:queue_fold/3, Q1, + LensByStore1, IndexS2, MSCS1), + PCount1 = PCount - find_persistent_count(LensByStore2), + {Len, a(S1 #s { q1 = queue:new(), + index_s = IndexS3, + len = 0, + ram_msg_count = 0, + ram_index_count = 0, + persistent_count = PCount1 })}. + +publish(Msg, MsgProps, S) -> + {_SeqId, S1} = publish(Msg, MsgProps, false, false, S), + a(reduce_memory_use(S1)). + +publish_delivered(false, #basic_message { guid = Guid }, + _MsgProps, S = #s { len = 0 }) -> + blind_confirm(self(), gb_sets:singleton(Guid)), + {undefined, a(S)}; +publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, + guid = Guid }, + MsgProps = #message_properties { + needs_confirming = NeedsConfirming }, + S = #s { len = 0, + next_seq_id = SeqId, + persistent_count = PCount, + durable = IsDurable, + unconfirmed = UC }) -> + IsPersistent1 = IsDurable andalso IsPersistent, + M = (m(IsPersistent1, SeqId, Msg, MsgProps)) + #m { is_delivered = true }, + {M1, S1} = maybe_write_to_disk(false, false, M, S), + S2 = record_pending_ack(m(M1), S1), + PCount1 = PCount + one_if(IsPersistent1), + UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), + {SeqId, a(reduce_memory_use( + S2 #s { next_seq_id = SeqId + 1, + persistent_count = PCount1, + unconfirmed = UC1 }))}. + +dropwhile(Pred, S) -> + {_OkOrEmpty, S1} = dropwhile1(Pred, S), + S1. + +dropwhile1(Pred, S) -> + internal_queue_out( + fun(M = #m { msg_props = MsgProps }, S1) -> + case Pred(MsgProps) of + true -> + {_, S2} = internal_fetch(false, M, S1), + dropwhile1(Pred, S2); + false -> + {M1, S2 = #s { q4 = Q4 }} = + read_msg(M, S1), + {ok, S2 #s {q4 = queue:in_r(M1, Q4) }} + end + end, S). + +fetch(AckRequired, S) -> + internal_queue_out( + fun(M, S1) -> + {M1, S2} = read_msg(M, S1), + internal_fetch(AckRequired, M1, S2) + end, S). + +internal_queue_out(Fun, S = #s { q4 = Q4 }) -> + case queue:out(Q4) of + {empty, _Q4} -> + case fetch_from_q3(S) of + {empty, S1} = Result -> a(S1), Result; + {loaded, {M, S1}} -> Fun(M, S1) + end; + {{value, M}, Q4a} -> + Fun(M, S #s { q4 = Q4a }) + end. + +read_msg(M = #m { msg = undefined, + guid = Guid, + is_persistent = IsPersistent }, + S = #s { ram_msg_count = RamMsgCount, + msg_store_clients = MSCS}) -> + {{ok, Msg = #basic_message {}}, MSCS1} = + msg_store_read(MSCS, IsPersistent, Guid), + {M #m { msg = Msg }, + S #s { ram_msg_count = RamMsgCount + 1, + msg_store_clients = MSCS1 }}; +read_msg(M, S) -> + {M, S}. + +internal_fetch(AckRequired, M = #m { + seq_id = SeqId, + guid = Guid, + msg = Msg, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk }, + S = #s {ram_msg_count = RamMsgCount, + index_s = IndexS, + msg_store_clients = MSCS, + len = Len, + persistent_count = PCount }) -> + IndexS1 = maybe_write_delivered( + IndexOnDisk andalso not IsDelivered, + SeqId, IndexS), + + Rem = fun () -> + ok = msg_store_remove(MSCS, IsPersistent, [Guid]) + end, + Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexS1) end, + IndexS2 = + case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of + {false, true, false, _} -> Rem(), IndexS1; + {false, true, true, _} -> Rem(), Ack(); + { true, true, true, false} -> Ack(); + _ -> IndexS1 + end, + + {AckTag, S1} = case AckRequired of + true -> SN = record_pending_ack( + M #m { + is_delivered = true }, S), + {SeqId, SN}; + false -> {undefined, S} + end, + + PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), + Len1 = Len - 1, + RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), + + {{Msg, IsDelivered, AckTag, Len1}, + a(S1 #s { ram_msg_count = RamMsgCount1, + index_s = IndexS2, + len = Len1, + persistent_count = PCount1 })}. + +ack(AckTags, S) -> + a(ack(fun msg_store_remove/3, + fun (_, S0) -> S0 end, + AckTags, S)). + +tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, + S = #s { durable = IsDurable, + msg_store_clients = MSCS }) -> + Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), + store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), + case IsPersistent andalso IsDurable of + true -> M = m(true, undefined, Msg, MsgProps), + #m { msg_on_disk = true } = + maybe_write_msg_to_disk(false, M, MSCS); + false -> ok + end, + a(S). + +tx_ack(Txn, AckTags, S) -> + Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), + store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), + S. + +tx_rollback(Txn, S = #s { durable = IsDurable, + msg_store_clients = MSCS }) -> + #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), + erase_tx(Txn), + ok = case IsDurable of + true -> msg_store_remove(MSCS, true, persistent_guids(Pubs)); + false -> ok + end, + {lists:append(AckTags), a(S)}. + +tx_commit(Txn, Fun, MsgPropsFun, + S = #s { durable = IsDurable, + msg_store_clients = MSCS }) -> + #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), + erase_tx(Txn), + AckTags1 = lists:append(AckTags), + PersistentGuids = persistent_guids(Pubs), + HasPersistentPubs = PersistentGuids =/= [], + {AckTags1, + a(case IsDurable andalso HasPersistentPubs of + true -> ok = msg_store_sync( + MSCS, true, PersistentGuids, + msg_store_callback(PersistentGuids, Pubs, AckTags1, + Fun, MsgPropsFun)), + S; + false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, + Fun, MsgPropsFun, S) + end)}. + +requeue(AckTags, MsgPropsFun, S) -> + MsgPropsFun1 = fun (MsgProps) -> + (MsgPropsFun(MsgProps)) #message_properties { + needs_confirming = false } + end, + a(reduce_memory_use( + ack(fun msg_store_release/3, + fun (#m { msg = Msg, msg_props = MsgProps }, S1) -> + {_SeqId, S2} = publish(Msg, MsgPropsFun1(MsgProps), + true, false, S1), + S2; + ({IsPersistent, Guid, MsgProps}, S1) -> + #s { msg_store_clients = MSCS } = S1, + {{ok, Msg = #basic_message{}}, MSCS1} = + msg_store_read(MSCS, IsPersistent, Guid), + S2 = S1 #s { msg_store_clients = MSCS1 }, + {_SeqId, S3} = publish(Msg, MsgPropsFun1(MsgProps), + true, true, S2), + S3 + end, + AckTags, S))). + +len(#s { len = Len }) -> Len. + +is_empty(S) -> 0 == len(S). + +set_ram_duration_target(_, S) -> S. + +ram_duration(S) -> {0, S}. + +needs_idle_timeout(_) -> false. + +idle_timeout(S) -> S. + +handle_pre_hibernate(S = #s { index_s = IndexS }) -> + S #s { index_s = rabbit_queue_index:flush(IndexS) }. + +status(#s { + q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, + len = Len, + pending_ack = PA, + ram_ack_index = RAI, + on_sync = #sync { funs = From }, + ram_msg_count = RamMsgCount, + ram_index_count = RamIndexCount, + next_seq_id = NextSeqId, + persistent_count = PersistentCount } ) -> + [ {q1 , queue:len(Q1)}, + {q2 , bpqueue:len(Q2)}, + {delta , Delta}, + {q3 , bpqueue:len(Q3)}, + {q4 , queue:len(Q4)}, + {len , Len}, + {pending_acks , dict:size(PA)}, + {outstanding_txns , length(From)}, + {ram_msg_count , RamMsgCount}, + {ram_ack_count , gb_trees:size(RAI)}, + {ram_index_count , RamIndexCount}, + {next_seq_id , NextSeqId}, + {persistent_count , PersistentCount} ]. + +%%---------------------------------------------------------------------------- +%% Minor helpers +%%---------------------------------------------------------------------------- + +a(S = #s { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, + len = Len, + persistent_count = PersistentCount, + ram_msg_count = RamMsgCount, + ram_index_count = RamIndexCount }) -> + E1 = queue:is_empty(Q1), + E2 = bpqueue:is_empty(Q2), + ED = Delta#delta.count == 0, + E3 = bpqueue:is_empty(Q3), + E4 = queue:is_empty(Q4), + LZ = Len == 0, + + true = E1 or not E3, + true = E2 or not ED, + true = ED or not E3, + true = LZ == (E3 and E4), + + true = Len >= 0, + true = PersistentCount >= 0, + true = RamMsgCount >= 0, + true = RamIndexCount >= 0, + + S. + +m(M = #m { msg = Msg, + is_persistent = IsPersistent, + msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk }) -> + true = (not IsPersistent) or IndexOnDisk, + true = (not IndexOnDisk) or MsgOnDisk, + true = (Msg =/= undefined) or MsgOnDisk, + + M. + +one_if(true ) -> 1; +one_if(false) -> 0. + +cons_if(true, E, L) -> [E | L]; +cons_if(false, _E, L) -> L. + +gb_sets_maybe_insert(false, _Val, Set) -> Set; +gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). + +m(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, + MsgProps) -> + #m { seq_id = SeqId, guid = Guid, msg = Msg, + is_persistent = IsPersistent, is_delivered = false, + msg_on_disk = false, index_on_disk = false, + msg_props = MsgProps }. + +with_msg_store_s({MSCSP, MSCST}, true, Fun) -> + {Result, MSCSP1} = Fun(MSCSP), + {Result, {MSCSP1, MSCST}}; +with_msg_store_s({MSCSP, MSCST}, false, Fun) -> + {Result, MSCST1} = Fun(MSCST), + {Result, {MSCSP, MSCST1}}. + +with_immutable_msg_store_s(MSCS, IsPersistent, Fun) -> + {Res, MSCS} = with_msg_store_s(MSCS, IsPersistent, + fun (MSCS1) -> + {Fun(MSCS1), MSCS1} + end), + Res. + +msg_store_client_init(MsgStore, MsgOnDiskFun) -> + msg_store_client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). + +msg_store_client_init(MsgStore, Ref, MsgOnDiskFun) -> + rabbit_msg_store:client_init( + MsgStore, Ref, MsgOnDiskFun, + msg_store_close_fds_fun(MsgStore =:= ?PERSISTENT_MSG_STORE)). + +msg_store_write(MSCS, IsPersistent, Guid, Msg) -> + with_immutable_msg_store_s( + MSCS, IsPersistent, + fun (MSCS1) -> rabbit_msg_store:write(Guid, Msg, MSCS1) end). + +msg_store_read(MSCS, IsPersistent, Guid) -> + with_msg_store_s( + MSCS, IsPersistent, + fun (MSCS1) -> rabbit_msg_store:read(Guid, MSCS1) end). + +msg_store_remove(MSCS, IsPersistent, Guids) -> + with_immutable_msg_store_s( + MSCS, IsPersistent, + fun (MCSS1) -> rabbit_msg_store:remove(Guids, MCSS1) end). + +msg_store_release(MSCS, IsPersistent, Guids) -> + with_immutable_msg_store_s( + MSCS, IsPersistent, + fun (MCSS1) -> rabbit_msg_store:release(Guids, MCSS1) end). + +msg_store_sync(MSCS, IsPersistent, Guids, Callback) -> + with_immutable_msg_store_s( + MSCS, IsPersistent, + fun (MSCS1) -> rabbit_msg_store:sync(Guids, Callback, MSCS1) end). + +msg_store_close_fds(MSCS, IsPersistent) -> + with_msg_store_s( + MSCS, IsPersistent, + fun (MSCS1) -> rabbit_msg_store:close_all_indicated(MSCS1) end). + +msg_store_close_fds_fun(IsPersistent) -> + Self = self(), + fun () -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + Self, + fun (S = #s { msg_store_clients = MSCS }) -> + {ok, MSCS1} = + msg_store_close_fds(MSCS, IsPersistent), + {[], S #s { msg_store_clients = MSCS1 }} + end) + end. + +maybe_write_delivered(false, _SeqId, IndexS) -> + IndexS; +maybe_write_delivered(true, SeqId, IndexS) -> + rabbit_queue_index:deliver([SeqId], IndexS). + +lookup_tx(Txn) -> case get({txn, Txn}) of + undefined -> #tx { pending_messages = [], + pending_acks = [] }; + V -> V + end. + +store_tx(Txn, Tx) -> put({txn, Txn}, Tx). + +erase_tx(Txn) -> erase({txn, Txn}). + +persistent_guids(Pubs) -> + [Guid || {#basic_message { guid = Guid, + is_persistent = true }, _MsgProps} <- Pubs]. + +betas_from_index_entries(List, TransientThreshold, IndexS) -> + {Filtered, Delivers, Acks} = + lists:foldr( + fun ({Guid, SeqId, MsgProps, IsPersistent, IsDelivered}, + {Filtered1, Delivers1, Acks1}) -> + case SeqId < TransientThreshold andalso not IsPersistent of + true -> {Filtered1, + cons_if(not IsDelivered, SeqId, Delivers1), + [SeqId | Acks1]}; + false -> {[m(#m { msg = undefined, + guid = Guid, + seq_id = SeqId, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_on_disk = true, + index_on_disk = true, + msg_props = MsgProps + }) | Filtered1], + Delivers1, + Acks1} + end + end, {[], [], []}, List), + {bpqueue:from_list([{true, Filtered}]), + rabbit_queue_index:ack(Acks, + rabbit_queue_index:deliver(Delivers, IndexS))}. + +beta_fold(Fun, Init, Q) -> + bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). + +%%---------------------------------------------------------------------------- +%% Internal major helpers for Public API +%%---------------------------------------------------------------------------- + +init(IsDurable, IndexS, DeltaCount, Terms, + PersistentClient, TransientClient) -> + {LowSeqId, NextSeqId, IndexS1} = rabbit_queue_index:bounds(IndexS), + + DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), + Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of + true -> ?BLANK_DELTA; + false -> #delta { start_seq_id = LowSeqId, + count = DeltaCount1, + end_seq_id = NextSeqId } + end, + S = #s { + q1 = queue:new(), + q2 = bpqueue:new(), + delta = Delta, + q3 = bpqueue:new(), + q4 = queue:new(), + next_seq_id = NextSeqId, + pending_ack = dict:new(), + ram_ack_index = gb_trees:empty(), + index_s = IndexS1, + msg_store_clients = {PersistentClient, TransientClient}, + on_sync = ?BLANK_SYNC, + durable = IsDurable, + transient_threshold = NextSeqId, + + len = DeltaCount1, + persistent_count = DeltaCount1, + + ram_msg_count = 0, + ram_index_count = 0, + msgs_on_disk = gb_sets:new(), + msg_indices_on_disk = gb_sets:new(), + unconfirmed = gb_sets:new() }, + a(maybe_deltas_to_betas(S)). + +msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, MsgPropsFun) -> + Self = self(), + F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( + Self, fun (SN) -> {[], tx_commit_post_msg_store( + true, Pubs, AckTags, + Fun, MsgPropsFun, SN)} + end) + end, + fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( + fun () -> remove_persistent_messages( + PersistentGuids) + end, F) + end) + end. + +remove_persistent_messages(Guids) -> + PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, undefined), + ok = rabbit_msg_store:remove(Guids, PersistentClient), + rabbit_msg_store:client_delete_and_terminate(PersistentClient). + +tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, + S = #s { + on_sync = OnSync = #sync { + acks_persistent = SPAcks, + acks_all = SAcks, + pubs = SPubs, + funs = SFuns }, + pending_ack = PA, + durable = IsDurable }) -> + PersistentAcks = + case IsDurable of + true -> [AckTag || AckTag <- AckTags, + case dict:fetch(AckTag, PA) of + #m {} -> + false; + {IsPersistent, _Guid, _MsgProps} -> + IsPersistent + end]; + false -> [] + end, + case IsDurable andalso (HasPersistentPubs orelse PersistentAcks =/= []) of + true -> S #s { + on_sync = #sync { + acks_persistent = [PersistentAcks | SPAcks], + acks_all = [AckTags | SAcks], + pubs = [{MsgPropsFun, Pubs} | SPubs], + funs = [Fun | SFuns] }}; + false -> S1 = tx_commit_index( + S #s { + on_sync = #sync { + acks_persistent = [], + acks_all = [AckTags], + pubs = [{MsgPropsFun, Pubs}], + funs = [Fun] } }), + S1 #s { on_sync = OnSync } + end. + +tx_commit_index(S = #s { on_sync = ?BLANK_SYNC }) -> + S; +tx_commit_index(S = #s { on_sync = #sync { + acks_persistent = SPAcks, + acks_all = SAcks, + pubs = SPubs, + funs = SFuns }, + durable = IsDurable }) -> + PAcks = lists:append(SPAcks), + Acks = lists:append(SAcks), + Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), + {Msg, MsgProps} <- lists:reverse(PubsN)], + {SeqIds, S1 = #s { index_s = IndexS }} = + lists:foldl( + fun ({Msg = #basic_message { is_persistent = IsPersistent }, + MsgProps}, + {SeqIdsAcc, S2}) -> + IsPersistent1 = IsDurable andalso IsPersistent, + {SeqId, S3} = + publish(Msg, MsgProps, false, IsPersistent1, S2), + {cons_if(IsPersistent1, SeqId, SeqIdsAcc), S3} + end, {PAcks, ack(Acks, S)}, Pubs), + IndexS1 = rabbit_queue_index:sync(SeqIds, IndexS), + [ Fun() || Fun <- lists:reverse(SFuns) ], + reduce_memory_use( + S1 #s { index_s = IndexS1, on_sync = ?BLANK_SYNC }). + +purge_betas_and_deltas(LensByStore, + S = #s { q3 = Q3, + index_s = IndexS, + msg_store_clients = MSCS }) -> + case bpqueue:is_empty(Q3) of + true -> {LensByStore, S}; + false -> {LensByStore1, IndexS1} = + remove_queue_entries(fun beta_fold/3, Q3, + LensByStore, IndexS, MSCS), + purge_betas_and_deltas(LensByStore1, + maybe_deltas_to_betas( + S #s { + q3 = bpqueue:new(), + index_s = IndexS1 })) + end. + +remove_queue_entries(Fold, Q, LensByStore, IndexS, MSCS) -> + {GuidsByStore, Delivers, Acks} = + Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), + ok = orddict:fold(fun (IsPersistent, Guids, ok) -> + msg_store_remove(MSCS, IsPersistent, Guids) + end, ok, GuidsByStore), + {sum_guids_by_store_to_len(LensByStore, GuidsByStore), + rabbit_queue_index:ack(Acks, + rabbit_queue_index:deliver(Delivers, IndexS))}. + +remove_queue_entries1( + #m { guid = Guid, seq_id = SeqId, + is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, + index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, + {GuidsByStore, Delivers, Acks}) -> + {case MsgOnDisk of + true -> rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore); + false -> GuidsByStore + end, + cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), + cons_if(IndexOnDisk, SeqId, Acks)}. + +sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> + orddict:fold( + fun (IsPersistent, Guids, LensByStore1) -> + orddict:update_counter(IsPersistent, length(Guids), LensByStore1) + end, LensByStore, GuidsByStore). + +%%---------------------------------------------------------------------------- +%% Internal gubbins for publishing +%%---------------------------------------------------------------------------- + +publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, + MsgProps = #message_properties { needs_confirming = NeedsConfirming }, + IsDelivered, MsgOnDisk, + S = #s { q1 = Q1, q3 = Q3, q4 = Q4, + next_seq_id = SeqId, + len = Len, + persistent_count = PCount, + durable = IsDurable, + ram_msg_count = RamMsgCount, + unconfirmed = UC }) -> + IsPersistent1 = IsDurable andalso IsPersistent, + M = (m(IsPersistent1, SeqId, Msg, MsgProps)) + #m { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, + {M1, S1} = maybe_write_to_disk(false, false, M, S), + S2 = case bpqueue:is_empty(Q3) of + false -> S1 #s { q1 = queue:in(m(M1), Q1) }; + true -> S1 #s { q4 = queue:in(m(M1), Q4) } + end, + PCount1 = PCount + one_if(IsPersistent1), + UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), + {SeqId, S2 #s { next_seq_id = SeqId + 1, + len = Len + 1, + persistent_count = PCount1, + ram_msg_count = RamMsgCount + 1, + unconfirmed = UC1 }}. + +maybe_write_msg_to_disk(_Force, M = #m { + msg_on_disk = true }, _MSCS) -> + M; +maybe_write_msg_to_disk(Force, M = #m { + msg = Msg, guid = Guid, + is_persistent = IsPersistent }, MSCS) + when Force orelse IsPersistent -> + Msg1 = Msg #basic_message { + content = rabbit_binary_parser:clear_decoded_content( + Msg #basic_message.content)}, + ok = msg_store_write(MSCS, IsPersistent, Guid, Msg1), + M #m { msg_on_disk = true }; +maybe_write_msg_to_disk(_Force, M, _MSCS) -> + M. + +maybe_write_index_to_disk(_Force, M = #m { + index_on_disk = true }, IndexS) -> + true = M #m.msg_on_disk, %% ASSERTION + {M, IndexS}; +maybe_write_index_to_disk(Force, M = #m { + guid = Guid, + seq_id = SeqId, + is_persistent = IsPersistent, + is_delivered = IsDelivered, + msg_props = MsgProps}, IndexS) + when Force orelse IsPersistent -> + true = M #m.msg_on_disk, %% ASSERTION + IndexS1 = rabbit_queue_index:publish( + Guid, SeqId, MsgProps, IsPersistent, IndexS), + {M #m { index_on_disk = true }, + maybe_write_delivered(IsDelivered, SeqId, IndexS1)}; +maybe_write_index_to_disk(_Force, M, IndexS) -> + {M, IndexS}. + +maybe_write_to_disk(ForceMsg, ForceIndex, M, + S = #s { index_s = IndexS, + msg_store_clients = MSCS }) -> + M1 = maybe_write_msg_to_disk(ForceMsg, M, MSCS), + {M2, IndexS1} = + maybe_write_index_to_disk(ForceIndex, M1, IndexS), + {M2, S #s { index_s = IndexS1 }}. + +%%---------------------------------------------------------------------------- +%% Internal gubbins for acks +%%---------------------------------------------------------------------------- + +record_pending_ack(#m { seq_id = SeqId, + guid = Guid, + is_persistent = IsPersistent, + msg_on_disk = MsgOnDisk, + msg_props = MsgProps } = M, + S = #s { pending_ack = PA, + ram_ack_index = RAI}) -> + {AckEntry, RAI1} = + case MsgOnDisk of + true -> {{IsPersistent, Guid, MsgProps}, RAI}; + false -> {M, gb_trees:insert(SeqId, Guid, RAI)} + end, + PA1 = dict:store(SeqId, AckEntry, PA), + S #s { pending_ack = PA1, + ram_ack_index = RAI1 }. + +remove_pending_ack(KeepPersistent, + S = #s { pending_ack = PA, + index_s = IndexS, + msg_store_clients = MSCS }) -> + {PersistentSeqIds, GuidsByStore} = + dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), + S1 = S #s { pending_ack = dict:new(), + ram_ack_index = gb_trees:empty() }, + case KeepPersistent of + true -> case orddict:find(false, GuidsByStore) of + error -> S1; + {ok, Guids} -> ok = msg_store_remove(MSCS, false, + Guids), + S1 + end; + false -> IndexS1 = + rabbit_queue_index:ack(PersistentSeqIds, IndexS), + [ok = msg_store_remove(MSCS, IsPersistent, Guids) + || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + S1 #s { index_s = IndexS1 } + end. + +ack(_MsgStoreFun, _Fun, [], S) -> + S; +ack(MsgStoreFun, Fun, AckTags, S) -> + {{PersistentSeqIds, GuidsByStore}, + S1 = #s { index_s = IndexS, + msg_store_clients = MSCS, + persistent_count = PCount }} = + lists:foldl( + fun (SeqId, {Acc, S2 = #s { pending_ack = PA, + ram_ack_index = RAI }}) -> + AckEntry = dict:fetch(SeqId, PA), + {accumulate_ack(SeqId, AckEntry, Acc), + Fun(AckEntry, S2 #s { + pending_ack = dict:erase(SeqId, PA), + ram_ack_index = + gb_trees:delete_any(SeqId, RAI)})} + end, {accumulate_ack_init(), S}, AckTags), + IndexS1 = rabbit_queue_index:ack(PersistentSeqIds, IndexS), + [ok = MsgStoreFun(MSCS, IsPersistent, Guids) + || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], + PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( + orddict:new(), GuidsByStore)), + S1 #s { index_s = IndexS1, + persistent_count = PCount1 }. + +accumulate_ack_init() -> {[], orddict:new()}. + +accumulate_ack(_SeqId, #m { is_persistent = false, %% ASSERTIONS + msg_on_disk = false, + index_on_disk = false }, + {PersistentSeqIdsAcc, GuidsByStore}) -> + {PersistentSeqIdsAcc, GuidsByStore}; +accumulate_ack(SeqId, {IsPersistent, Guid, _MsgProps}, + {PersistentSeqIdsAcc, GuidsByStore}) -> + {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), + rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore)}. + +find_persistent_count(LensByStore) -> + case orddict:find(true, LensByStore) of + error -> 0; + {ok, Len} -> Len + end. + +%%---------------------------------------------------------------------------- +%% Internal plumbing for confirms (aka publisher acks) +%%---------------------------------------------------------------------------- + +remove_confirms(GuidSet, S = #s { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + S #s { msgs_on_disk = gb_sets:difference(MOD, GuidSet), + msg_indices_on_disk = gb_sets:difference(MIOD, GuidSet), + unconfirmed = gb_sets:difference(UC, GuidSet) }. + +msgs_confirmed(GuidSet, S) -> + {gb_sets:to_list(GuidSet), remove_confirms(GuidSet, S)}. + +blind_confirm(QPid, GuidSet) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + QPid, fun (S) -> msgs_confirmed(GuidSet, S) end). + +msgs_written_to_disk(QPid, GuidSet, removed) -> + blind_confirm(QPid, GuidSet); +msgs_written_to_disk(QPid, GuidSet, written) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + QPid, fun (S = #s { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + msgs_confirmed(gb_sets:intersection(GuidSet, MIOD), + S #s { + msgs_on_disk = + gb_sets:intersection( + gb_sets:union(MOD, GuidSet), UC) }) + end). + +msg_indices_written_to_disk(QPid, GuidSet) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + QPid, fun (S = #s { msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC }) -> + msgs_confirmed(gb_sets:intersection(GuidSet, MOD), + S #s { + msg_indices_on_disk = + gb_sets:intersection( + gb_sets:union(MIOD, GuidSet), UC) }) + end). + +%%---------------------------------------------------------------------------- +%% Phase changes +%%---------------------------------------------------------------------------- + +reduce_memory_use(S) -> S. + +fetch_from_q3(S = #s { + q1 = Q1, + q2 = Q2, + delta = #delta { count = DeltaCount }, + q3 = Q3, + q4 = Q4, + ram_index_count = RamIndexCount}) -> + case bpqueue:out(Q3) of + {empty, _Q3} -> + {empty, S}; + {{value, IndexOnDisk, M}, Q3a} -> + RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), + true = RamIndexCount1 >= 0, %% ASSERTION + S1 = S #s { q3 = Q3a, + ram_index_count = RamIndexCount1 }, + S2 = + case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of + {true, true} -> + true = bpqueue:is_empty(Q2), %% ASSERTION + true = queue:is_empty(Q4), %% ASSERTION + S1 #s { q1 = queue:new(), + q4 = Q1 }; + {true, false} -> + maybe_deltas_to_betas(S1); + {false, _} -> + S1 + end, + {loaded, {M, S2}} + end. + +maybe_deltas_to_betas(S = #s { delta = ?BLANK_DELTA_PATTERN(X) }) -> + S; +maybe_deltas_to_betas(S = #s { + q2 = Q2, + delta = Delta, + q3 = Q3, + index_s = IndexS, + transient_threshold = TransientThreshold }) -> + #delta { start_seq_id = DeltaSeqId, + count = DeltaCount, + end_seq_id = DeltaSeqIdEnd } = Delta, + DeltaSeqId1 = + lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), + DeltaSeqIdEnd]), + {List, IndexS1} = + rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexS), + {Q3a, IndexS2} = + betas_from_index_entries(List, TransientThreshold, IndexS1), + S1 = S #s { index_s = IndexS2 }, + case bpqueue:len(Q3a) of + 0 -> + maybe_deltas_to_betas( + S1 #s { + delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); + Q3aLen -> + Q3b = bpqueue:join(Q3, Q3a), + case DeltaCount - Q3aLen of + 0 -> + S1 #s { q2 = bpqueue:new(), + delta = ?BLANK_DELTA, + q3 = bpqueue:join(Q3b, Q2) }; + N when N > 0 -> + Delta1 = #delta { start_seq_id = DeltaSeqId1, + count = N, + end_seq_id = DeltaSeqIdEnd }, + S1 #s { delta = Delta1, + q3 = Q3b } + end + end. + -- cgit v1.2.1 From 95e6560c8836b5fa735f54be23822852a2f3a1be Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 9 Feb 2011 17:17:03 -0800 Subject: Stripping down rabbit_variable_queue, again. --- src/rabbit_ram_queue.erl | 306 +++++++++++++---------------------------------- 1 file changed, 85 insertions(+), 221 deletions(-) diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index ef455fcd..9380f726 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -33,7 +33,6 @@ -record(s, { q1, q2, - delta, q3, q4, next_seq_id, @@ -49,8 +48,6 @@ len, persistent_count, - ram_msg_count, - ram_index_count, msgs_on_disk, msg_indices_on_disk, unconfirmed @@ -67,12 +64,6 @@ msg_props }). --record(delta, - { start_seq_id, %% start_seq_id is inclusive - count, - end_seq_id %% end_seq_id is exclusive - }). - -record(tx, { pending_messages, pending_acks }). -record(sync, { acks_persistent, acks_all, pubs, funs }). @@ -90,10 +81,6 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id()). --type(delta() :: #delta { start_seq_id :: non_neg_integer(), - count :: non_neg_integer(), - end_seq_id :: non_neg_integer() }). - -type(sync() :: #sync { acks_persistent :: [[seq_id()]], acks_all :: [[seq_id()]], pubs :: [{message_properties_transformer(), @@ -103,7 +90,6 @@ -type(s() :: #s { q1 :: queue(), q2 :: bpqueue:bpqueue(), - delta :: delta(), q3 :: bpqueue:bpqueue(), q4 :: queue(), next_seq_id :: seq_id(), @@ -119,8 +105,6 @@ persistent_count :: non_neg_integer(), transient_threshold :: non_neg_integer(), - ram_msg_count :: non_neg_integer(), - ram_index_count :: non_neg_integer(), msgs_on_disk :: gb_set(), msg_indices_on_disk :: gb_set(), unconfirmed :: gb_set() }). @@ -130,13 +114,6 @@ -endif. --define(BLANK_DELTA, #delta { start_seq_id = undefined, - count = 0, - end_seq_id = undefined }). --define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, - count = 0, - end_seq_id = Z }). - -define(BLANK_SYNC, #sync { acks_persistent = [], acks_all = [], pubs = [], @@ -147,24 +124,24 @@ %%---------------------------------------------------------------------------- start(DurableQueues) -> - {AllTerms, StartFunS} = rabbit_queue_index:recover(DurableQueues), + {AllTerms, StartFS} = rabbit_queue_index:recover(DurableQueues), start_msg_store( [Ref || Terms <- AllTerms, begin Ref = proplists:get_value(persistent_ref, Terms), Ref =/= undefined end], - StartFunS). + StartFS). stop() -> stop_msg_store(). -start_msg_store(Refs, StartFunS) -> +start_msg_store(Refs, StartFS) -> ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), undefined, {fun (ok) -> finished end, ok}]), ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), - Refs, StartFunS]). + Refs, StartFS]). stop_msg_store() -> ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), @@ -178,17 +155,17 @@ init(QueueName, IsDurable, Recover) -> end, fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). -init(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> - IndexS = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), +init(QueueName, IsDurable, false, MsgOnDiskF, MsgIdxOnDiskF) -> + IndexS = rabbit_queue_index:init(QueueName, MsgIdxOnDiskF), init(IsDurable, IndexS, 0, [], case IsDurable of true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskFun); + MsgOnDiskF); false -> undefined end, msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); -init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> +init(QueueName, true, true, MsgOnDiskF, MsgIdxOnDiskF) -> Terms = rabbit_queue_index:shutdown_terms(QueueName), {PRef, TRef, Terms1} = case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of @@ -198,7 +175,7 @@ init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} end, PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef, - MsgOnDiskFun), + MsgOnDiskF), TransientClient = msg_store_client_init(?TRANSIENT_MSG_STORE, TRef, undefined), {DeltaCount, IndexS} = @@ -208,7 +185,7 @@ init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> fun (Guid) -> rabbit_msg_store:contains(Guid, PersistentClient) end, - MsgIdxOnDiskFun), + MsgIdxOnDiskF), init(true, IndexS, DeltaCount, Terms1, PersistentClient, TransientClient). @@ -266,13 +243,11 @@ purge(S = #s { q4 = Q4, {Len, a(S1 #s { q1 = queue:new(), index_s = IndexS3, len = 0, - ram_msg_count = 0, - ram_index_count = 0, persistent_count = PCount1 })}. publish(Msg, MsgProps, S) -> {_SeqId, S1} = publish(Msg, MsgProps, false, false, S), - a(reduce_memory_use(S1)). + a(S1). publish_delivered(false, #basic_message { guid = Guid }, _MsgProps, S = #s { len = 0 }) -> @@ -294,10 +269,9 @@ publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, S2 = record_pending_ack(m(M1), S1), PCount1 = PCount + one_if(IsPersistent1), UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), - {SeqId, a(reduce_memory_use( - S2 #s { next_seq_id = SeqId + 1, - persistent_count = PCount1, - unconfirmed = UC1 }))}. + {SeqId, a(S2 #s { next_seq_id = SeqId + 1, + persistent_count = PCount1, + unconfirmed = UC1 })}. dropwhile(Pred, S) -> {_OkOrEmpty, S1} = dropwhile1(Pred, S), @@ -324,27 +298,25 @@ fetch(AckRequired, S) -> internal_fetch(AckRequired, M1, S2) end, S). -internal_queue_out(Fun, S = #s { q4 = Q4 }) -> +internal_queue_out(F, S = #s { q4 = Q4 }) -> case queue:out(Q4) of {empty, _Q4} -> case fetch_from_q3(S) of {empty, S1} = Result -> a(S1), Result; - {loaded, {M, S1}} -> Fun(M, S1) + {loaded, {M, S1}} -> F(M, S1) end; {{value, M}, Q4a} -> - Fun(M, S #s { q4 = Q4a }) + F(M, S #s { q4 = Q4a }) end. read_msg(M = #m { msg = undefined, guid = Guid, is_persistent = IsPersistent }, - S = #s { ram_msg_count = RamMsgCount, - msg_store_clients = MSCS}) -> + S = #s { msg_store_clients = MSCS}) -> {{ok, Msg = #basic_message {}}, MSCS1} = msg_store_read(MSCS, IsPersistent, Guid), {M #m { msg = Msg }, - S #s { ram_msg_count = RamMsgCount + 1, - msg_store_clients = MSCS1 }}; + S #s { msg_store_clients = MSCS1 }}; read_msg(M, S) -> {M, S}. @@ -356,8 +328,7 @@ internal_fetch(AckRequired, M = #m { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, index_on_disk = IndexOnDisk }, - S = #s {ram_msg_count = RamMsgCount, - index_s = IndexS, + S = #s {index_s = IndexS, msg_store_clients = MSCS, len = Len, persistent_count = PCount }) -> @@ -387,11 +358,9 @@ internal_fetch(AckRequired, M = #m { PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), Len1 = Len - 1, - RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), {{Msg, IsDelivered, AckTag, Len1}, - a(S1 #s { ram_msg_count = RamMsgCount1, - index_s = IndexS2, + a(S1 #s { index_s = IndexS2, len = Len1, persistent_count = PCount1 })}. @@ -428,7 +397,7 @@ tx_rollback(Txn, S = #s { durable = IsDurable, end, {lists:append(AckTags), a(S)}. -tx_commit(Txn, Fun, MsgPropsFun, +tx_commit(Txn, F, MsgPropsF, S = #s { durable = IsDurable, msg_store_clients = MSCS }) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), @@ -441,33 +410,32 @@ tx_commit(Txn, Fun, MsgPropsFun, true -> ok = msg_store_sync( MSCS, true, PersistentGuids, msg_store_callback(PersistentGuids, Pubs, AckTags1, - Fun, MsgPropsFun)), + F, MsgPropsF)), S; false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, - Fun, MsgPropsFun, S) + F, MsgPropsF, S) end)}. -requeue(AckTags, MsgPropsFun, S) -> - MsgPropsFun1 = fun (MsgProps) -> - (MsgPropsFun(MsgProps)) #message_properties { +requeue(AckTags, MsgPropsF, S) -> + MsgPropsF1 = fun (MsgProps) -> + (MsgPropsF(MsgProps)) #message_properties { needs_confirming = false } end, - a(reduce_memory_use( - ack(fun msg_store_release/3, - fun (#m { msg = Msg, msg_props = MsgProps }, S1) -> - {_SeqId, S2} = publish(Msg, MsgPropsFun1(MsgProps), - true, false, S1), - S2; - ({IsPersistent, Guid, MsgProps}, S1) -> - #s { msg_store_clients = MSCS } = S1, - {{ok, Msg = #basic_message{}}, MSCS1} = - msg_store_read(MSCS, IsPersistent, Guid), - S2 = S1 #s { msg_store_clients = MSCS1 }, - {_SeqId, S3} = publish(Msg, MsgPropsFun1(MsgProps), - true, true, S2), - S3 - end, - AckTags, S))). + a(ack(fun msg_store_release/3, + fun (#m { msg = Msg, msg_props = MsgProps }, S1) -> + {_SeqId, S2} = publish(Msg, MsgPropsF1(MsgProps), + true, false, S1), + S2; + ({IsPersistent, Guid, MsgProps}, S1) -> + #s { msg_store_clients = MSCS } = S1, + {{ok, Msg = #basic_message{}}, MSCS1} = + msg_store_read(MSCS, IsPersistent, Guid), + S2 = S1 #s { msg_store_clients = MSCS1 }, + {_SeqId, S3} = publish(Msg, MsgPropsF1(MsgProps), + true, true, S2), + S3 + end, + AckTags, S)). len(#s { len = Len }) -> Len. @@ -485,26 +453,21 @@ handle_pre_hibernate(S = #s { index_s = IndexS }) -> S #s { index_s = rabbit_queue_index:flush(IndexS) }. status(#s { - q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, + q1 = Q1, q2 = Q2, q3 = Q3, q4 = Q4, len = Len, pending_ack = PA, ram_ack_index = RAI, on_sync = #sync { funs = From }, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, next_seq_id = NextSeqId, persistent_count = PersistentCount } ) -> [ {q1 , queue:len(Q1)}, {q2 , bpqueue:len(Q2)}, - {delta , Delta}, {q3 , bpqueue:len(Q3)}, {q4 , queue:len(Q4)}, {len , Len}, {pending_acks , dict:size(PA)}, {outstanding_txns , length(From)}, - {ram_msg_count , RamMsgCount}, {ram_ack_count , gb_trees:size(RAI)}, - {ram_index_count , RamIndexCount}, {next_seq_id , NextSeqId}, {persistent_count , PersistentCount} ]. @@ -512,27 +475,21 @@ status(#s { %% Minor helpers %%---------------------------------------------------------------------------- -a(S = #s { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, +a(S = #s { q1 = Q1, q2 = Q2, q3 = Q3, q4 = Q4, len = Len, - persistent_count = PersistentCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }) -> + persistent_count = PersistentCount }) -> E1 = queue:is_empty(Q1), E2 = bpqueue:is_empty(Q2), - ED = Delta#delta.count == 0, E3 = bpqueue:is_empty(Q3), E4 = queue:is_empty(Q4), LZ = Len == 0, true = E1 or not E3, - true = E2 or not ED, - true = ED or not E3, + true = E2, true = LZ == (E3 and E4), true = Len >= 0, true = PersistentCount >= 0, - true = RamMsgCount >= 0, - true = RamIndexCount >= 0, S. @@ -562,26 +519,26 @@ m(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, msg_on_disk = false, index_on_disk = false, msg_props = MsgProps }. -with_msg_store_s({MSCSP, MSCST}, true, Fun) -> - {Result, MSCSP1} = Fun(MSCSP), +with_msg_store_s({MSCSP, MSCST}, true, F) -> + {Result, MSCSP1} = F(MSCSP), {Result, {MSCSP1, MSCST}}; -with_msg_store_s({MSCSP, MSCST}, false, Fun) -> - {Result, MSCST1} = Fun(MSCST), +with_msg_store_s({MSCSP, MSCST}, false, F) -> + {Result, MSCST1} = F(MSCST), {Result, {MSCSP, MSCST1}}. -with_immutable_msg_store_s(MSCS, IsPersistent, Fun) -> +with_immutable_msg_store_s(MSCS, IsPersistent, F) -> {Res, MSCS} = with_msg_store_s(MSCS, IsPersistent, fun (MSCS1) -> - {Fun(MSCS1), MSCS1} + {F(MSCS1), MSCS1} end), Res. -msg_store_client_init(MsgStore, MsgOnDiskFun) -> - msg_store_client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). +msg_store_client_init(MsgStore, MsgOnDiskF) -> + msg_store_client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskF). -msg_store_client_init(MsgStore, Ref, MsgOnDiskFun) -> +msg_store_client_init(MsgStore, Ref, MsgOnDiskF) -> rabbit_msg_store:client_init( - MsgStore, Ref, MsgOnDiskFun, + MsgStore, Ref, MsgOnDiskF, msg_store_close_fds_fun(MsgStore =:= ?PERSISTENT_MSG_STORE)). msg_store_write(MSCS, IsPersistent, Guid, Msg) -> @@ -645,34 +602,8 @@ persistent_guids(Pubs) -> [Guid || {#basic_message { guid = Guid, is_persistent = true }, _MsgProps} <- Pubs]. -betas_from_index_entries(List, TransientThreshold, IndexS) -> - {Filtered, Delivers, Acks} = - lists:foldr( - fun ({Guid, SeqId, MsgProps, IsPersistent, IsDelivered}, - {Filtered1, Delivers1, Acks1}) -> - case SeqId < TransientThreshold andalso not IsPersistent of - true -> {Filtered1, - cons_if(not IsDelivered, SeqId, Delivers1), - [SeqId | Acks1]}; - false -> {[m(#m { msg = undefined, - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true, - msg_props = MsgProps - }) | Filtered1], - Delivers1, - Acks1} - end - end, {[], [], []}, List), - {bpqueue:from_list([{true, Filtered}]), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexS))}. - -beta_fold(Fun, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). +beta_fold(F, Init, Q) -> + bpqueue:foldr(fun (_Prefix, Value, Acc) -> F(Value, Acc) end, Init, Q). %%---------------------------------------------------------------------------- %% Internal major helpers for Public API @@ -680,19 +611,12 @@ beta_fold(Fun, Init, Q) -> init(IsDurable, IndexS, DeltaCount, Terms, PersistentClient, TransientClient) -> - {LowSeqId, NextSeqId, IndexS1} = rabbit_queue_index:bounds(IndexS), + {_, NextSeqId, IndexS1} = rabbit_queue_index:bounds(IndexS), DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), - Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of - true -> ?BLANK_DELTA; - false -> #delta { start_seq_id = LowSeqId, - count = DeltaCount1, - end_seq_id = NextSeqId } - end, S = #s { q1 = queue:new(), q2 = bpqueue:new(), - delta = Delta, q3 = bpqueue:new(), q4 = queue:new(), next_seq_id = NextSeqId, @@ -707,19 +631,17 @@ init(IsDurable, IndexS, DeltaCount, Terms, len = DeltaCount1, persistent_count = DeltaCount1, - ram_msg_count = 0, - ram_index_count = 0, msgs_on_disk = gb_sets:new(), msg_indices_on_disk = gb_sets:new(), unconfirmed = gb_sets:new() }, - a(maybe_deltas_to_betas(S)). + a(S). -msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, MsgPropsFun) -> +msg_store_callback(PersistentGuids, Pubs, AckTags, F, MsgPropsF) -> Self = self(), F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( Self, fun (SN) -> {[], tx_commit_post_msg_store( true, Pubs, AckTags, - Fun, MsgPropsFun, SN)} + F, MsgPropsF, SN)} end) end, fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( @@ -734,13 +656,13 @@ remove_persistent_messages(Guids) -> ok = rabbit_msg_store:remove(Guids, PersistentClient), rabbit_msg_store:client_delete_and_terminate(PersistentClient). -tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, +tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, F, MsgPropsF, S = #s { on_sync = OnSync = #sync { acks_persistent = SPAcks, acks_all = SAcks, pubs = SPubs, - funs = SFuns }, + funs = SFs }, pending_ack = PA, durable = IsDurable }) -> PersistentAcks = @@ -759,15 +681,15 @@ tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, on_sync = #sync { acks_persistent = [PersistentAcks | SPAcks], acks_all = [AckTags | SAcks], - pubs = [{MsgPropsFun, Pubs} | SPubs], - funs = [Fun | SFuns] }}; + pubs = [{MsgPropsF, Pubs} | SPubs], + funs = [F | SFs] }}; false -> S1 = tx_commit_index( S #s { on_sync = #sync { acks_persistent = [], acks_all = [AckTags], - pubs = [{MsgPropsFun, Pubs}], - funs = [Fun] } }), + pubs = [{MsgPropsF, Pubs}], + funs = [F] } }), S1 #s { on_sync = OnSync } end. @@ -777,11 +699,11 @@ tx_commit_index(S = #s { on_sync = #sync { acks_persistent = SPAcks, acks_all = SAcks, pubs = SPubs, - funs = SFuns }, + funs = SFs }, durable = IsDurable }) -> PAcks = lists:append(SPAcks), Acks = lists:append(SAcks), - Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), + Pubs = [{Msg, F(MsgProps)} || {F, PubsN} <- lists:reverse(SPubs), {Msg, MsgProps} <- lists:reverse(PubsN)], {SeqIds, S1 = #s { index_s = IndexS }} = lists:foldl( @@ -794,9 +716,8 @@ tx_commit_index(S = #s { on_sync = #sync { {cons_if(IsPersistent1, SeqId, SeqIdsAcc), S3} end, {PAcks, ack(Acks, S)}, Pubs), IndexS1 = rabbit_queue_index:sync(SeqIds, IndexS), - [ Fun() || Fun <- lists:reverse(SFuns) ], - reduce_memory_use( - S1 #s { index_s = IndexS1, on_sync = ?BLANK_SYNC }). + [ F() || F <- lists:reverse(SFs) ], + S1 #s { index_s = IndexS1, on_sync = ?BLANK_SYNC }. purge_betas_and_deltas(LensByStore, S = #s { q3 = Q3, @@ -808,10 +729,9 @@ purge_betas_and_deltas(LensByStore, remove_queue_entries(fun beta_fold/3, Q3, LensByStore, IndexS, MSCS), purge_betas_and_deltas(LensByStore1, - maybe_deltas_to_betas( - S #s { - q3 = bpqueue:new(), - index_s = IndexS1 })) + S #s { + q3 = bpqueue:new(), + index_s = IndexS1 }) end. remove_queue_entries(Fold, Q, LensByStore, IndexS, MSCS) -> @@ -854,7 +774,6 @@ publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, len = Len, persistent_count = PCount, durable = IsDurable, - ram_msg_count = RamMsgCount, unconfirmed = UC }) -> IsPersistent1 = IsDurable andalso IsPersistent, M = (m(IsPersistent1, SeqId, Msg, MsgProps)) @@ -869,7 +788,6 @@ publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, {SeqId, S2 #s { next_seq_id = SeqId + 1, len = Len + 1, persistent_count = PCount1, - ram_msg_count = RamMsgCount + 1, unconfirmed = UC1 }}. maybe_write_msg_to_disk(_Force, M = #m { @@ -956,9 +874,9 @@ remove_pending_ack(KeepPersistent, S1 #s { index_s = IndexS1 } end. -ack(_MsgStoreFun, _Fun, [], S) -> +ack(_MsgStoreF, _F, [], S) -> S; -ack(MsgStoreFun, Fun, AckTags, S) -> +ack(MsgStoreF, F, AckTags, S) -> {{PersistentSeqIds, GuidsByStore}, S1 = #s { index_s = IndexS, msg_store_clients = MSCS, @@ -968,13 +886,13 @@ ack(MsgStoreFun, Fun, AckTags, S) -> ram_ack_index = RAI }}) -> AckEntry = dict:fetch(SeqId, PA), {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, S2 #s { + F(AckEntry, S2 #s { pending_ack = dict:erase(SeqId, PA), ram_ack_index = gb_trees:delete_any(SeqId, RAI)})} end, {accumulate_ack_init(), S}, AckTags), IndexS1 = rabbit_queue_index:ack(PersistentSeqIds, IndexS), - [ok = MsgStoreFun(MSCS, IsPersistent, Guids) + [ok = MsgStoreF(MSCS, IsPersistent, Guids) || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( orddict:new(), GuidsByStore)), @@ -1047,75 +965,21 @@ msg_indices_written_to_disk(QPid, GuidSet) -> %% Phase changes %%---------------------------------------------------------------------------- -reduce_memory_use(S) -> S. - fetch_from_q3(S = #s { q1 = Q1, - q2 = Q2, - delta = #delta { count = DeltaCount }, - q3 = Q3, - q4 = Q4, - ram_index_count = RamIndexCount}) -> + q3 = Q3}) -> case bpqueue:out(Q3) of {empty, _Q3} -> {empty, S}; - {{value, IndexOnDisk, M}, Q3a} -> - RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), - true = RamIndexCount1 >= 0, %% ASSERTION - S1 = S #s { q3 = Q3a, - ram_index_count = RamIndexCount1 }, + {{value, _, M}, Q3a} -> + S1 = S #s { q3 = Q3a }, S2 = - case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of - {true, true} -> - true = bpqueue:is_empty(Q2), %% ASSERTION - true = queue:is_empty(Q4), %% ASSERTION + case bpqueue:is_empty(Q3a) of + true -> S1 #s { q1 = queue:new(), q4 = Q1 }; - {true, false} -> - maybe_deltas_to_betas(S1); - {false, _} -> + false -> S1 end, {loaded, {M, S2}} end. - -maybe_deltas_to_betas(S = #s { delta = ?BLANK_DELTA_PATTERN(X) }) -> - S; -maybe_deltas_to_betas(S = #s { - q2 = Q2, - delta = Delta, - q3 = Q3, - index_s = IndexS, - transient_threshold = TransientThreshold }) -> - #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = DeltaSeqIdEnd } = Delta, - DeltaSeqId1 = - lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), - DeltaSeqIdEnd]), - {List, IndexS1} = - rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexS), - {Q3a, IndexS2} = - betas_from_index_entries(List, TransientThreshold, IndexS1), - S1 = S #s { index_s = IndexS2 }, - case bpqueue:len(Q3a) of - 0 -> - maybe_deltas_to_betas( - S1 #s { - delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); - Q3aLen -> - Q3b = bpqueue:join(Q3, Q3a), - case DeltaCount - Q3aLen of - 0 -> - S1 #s { q2 = bpqueue:new(), - delta = ?BLANK_DELTA, - q3 = bpqueue:join(Q3b, Q2) }; - N when N > 0 -> - Delta1 = #delta { start_seq_id = DeltaSeqId1, - count = N, - end_seq_id = DeltaSeqIdEnd }, - S1 #s { delta = Delta1, - q3 = Q3b } - end - end. - -- cgit v1.2.1 From e5608c3cd9140e4663f3796193f3460028dc34a7 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 9 Feb 2011 17:38:16 -0800 Subject: Slow progress. --- src/rabbit_ram_queue.erl | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 9380f726..bbbacd7d 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -157,13 +157,13 @@ init(QueueName, IsDurable, Recover) -> init(QueueName, IsDurable, false, MsgOnDiskF, MsgIdxOnDiskF) -> IndexS = rabbit_queue_index:init(QueueName, MsgIdxOnDiskF), - init(IsDurable, IndexS, 0, [], - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskF); - false -> undefined - end, - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); + init6(IsDurable, IndexS, 0, [], + case IsDurable of + true -> msg_store_client_init(?PERSISTENT_MSG_STORE, + MsgOnDiskF); + false -> undefined + end, + msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); init(QueueName, true, true, MsgOnDiskF, MsgIdxOnDiskF) -> Terms = rabbit_queue_index:shutdown_terms(QueueName), @@ -186,8 +186,7 @@ init(QueueName, true, true, MsgOnDiskF, MsgIdxOnDiskF) -> rabbit_msg_store:contains(Guid, PersistentClient) end, MsgIdxOnDiskF), - init(true, IndexS, DeltaCount, Terms1, - PersistentClient, TransientClient). + init6(true, IndexS, DeltaCount, Terms1, PersistentClient, TransientClient). terminate(S) -> S1 = #s { persistent_count = PCount, @@ -210,8 +209,7 @@ terminate(S) -> delete_and_terminate(S) -> {_PurgeCount, S1} = purge(S), - S2 = #s { index_s = IndexS, - msg_store_clients = {MSCSP, MSCST} } = + S2 = #s { index_s = IndexS, msg_store_clients = {MSCSP, MSCST} } = remove_pending_ack(false, S1), IndexS1 = rabbit_queue_index:delete_and_terminate(IndexS), case MSCSP of @@ -609,8 +607,7 @@ beta_fold(F, Init, Q) -> %% Internal major helpers for Public API %%---------------------------------------------------------------------------- -init(IsDurable, IndexS, DeltaCount, Terms, - PersistentClient, TransientClient) -> +init6(IsDurable, IndexS, DeltaCount, Terms, PersistentClient, TransientClient) -> {_, NextSeqId, IndexS1} = rabbit_queue_index:bounds(IndexS), DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), -- cgit v1.2.1 From b78b0060e2ac1e8d49c2f4cd1742333179d64c6c Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 9 Feb 2011 18:25:07 -0800 Subject: Almost dinner time. --- src/rabbit_ram_queue.erl | 299 ++++++++--------------------------------------- 1 file changed, 51 insertions(+), 248 deletions(-) diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index bbbacd7d..67e0ccdb 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -31,10 +31,7 @@ -behaviour(rabbit_backing_queue). -record(s, - { q1, - q2, - q3, - q4, + { q, next_seq_id, pending_ack, pending_ack_index, @@ -48,8 +45,6 @@ len, persistent_count, - msgs_on_disk, - msg_indices_on_disk, unconfirmed }). @@ -59,8 +54,6 @@ msg, is_persistent, is_delivered, - msg_on_disk, - index_on_disk, msg_props }). @@ -88,10 +81,7 @@ funs :: [fun (() -> any())] }). -type(s() :: #s { - q1 :: queue(), - q2 :: bpqueue:bpqueue(), - q3 :: bpqueue:bpqueue(), - q4 :: queue(), + q :: queue(), next_seq_id :: seq_id(), pending_ack :: dict(), ram_ack_index :: gb_tree(), @@ -105,8 +95,6 @@ persistent_count :: non_neg_integer(), transient_threshold :: non_neg_integer(), - msgs_on_disk :: gb_set(), - msg_indices_on_disk :: gb_set(), unconfirmed :: gb_set() }). -type(state() :: s()). @@ -220,26 +208,21 @@ delete_and_terminate(S) -> a(S2 #s { index_s = IndexS1, msg_store_clients = undefined }). -purge(S = #s { q4 = Q4, +purge(S = #s { q = Q, index_s = IndexS, msg_store_clients = MSCS, len = Len, persistent_count = PCount }) -> {LensByStore, IndexS1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q4, + fun rabbit_misc:queue_fold/3, Q, orddict:new(), IndexS, MSCS), - {LensByStore1, S1 = #s { q1 = Q1, - index_s = IndexS2, - msg_store_clients = MSCS1 }} = + {LensByStore1, S1 = #s { index_s = IndexS2 }} = purge_betas_and_deltas(LensByStore, - S #s { q4 = queue:new(), + S #s { q = queue:new(), index_s = IndexS1 }), - {LensByStore2, IndexS3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q1, - LensByStore1, IndexS2, MSCS1), + {LensByStore2, IndexS3} = {LensByStore1, IndexS2}, PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, a(S1 #s { q1 = queue:new(), - index_s = IndexS3, + {Len, a(S1 #s { index_s = IndexS3, len = 0, persistent_count = PCount1 })}. @@ -283,9 +266,9 @@ dropwhile1(Pred, S) -> {_, S2} = internal_fetch(false, M, S1), dropwhile1(Pred, S2); false -> - {M1, S2 = #s { q4 = Q4 }} = + {M1, S2 = #s { q = Q }} = read_msg(M, S1), - {ok, S2 #s {q4 = queue:in_r(M1, Q4) }} + {ok, S2 #s {q = queue:in_r(M1, Q) }} end end, S). @@ -296,15 +279,12 @@ fetch(AckRequired, S) -> internal_fetch(AckRequired, M1, S2) end, S). -internal_queue_out(F, S = #s { q4 = Q4 }) -> - case queue:out(Q4) of - {empty, _Q4} -> - case fetch_from_q3(S) of - {empty, S1} = Result -> a(S1), Result; - {loaded, {M, S1}} -> F(M, S1) - end; - {{value, M}, Q4a} -> - F(M, S #s { q4 = Q4a }) +internal_queue_out(F, S = #s { q = Q }) -> + case queue:out(Q) of + {empty, _Q} -> + {empty, S}; + {{value, M}, Qa} -> + F(M, S #s { q = Qa }) end. read_msg(M = #m { msg = undefined, @@ -320,31 +300,15 @@ read_msg(M, S) -> internal_fetch(AckRequired, M = #m { seq_id = SeqId, - guid = Guid, msg = Msg, is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, + is_delivered = IsDelivered }, S = #s {index_s = IndexS, - msg_store_clients = MSCS, len = Len, persistent_count = PCount }) -> - IndexS1 = maybe_write_delivered( - IndexOnDisk andalso not IsDelivered, - SeqId, IndexS), + IndexS1 = IndexS, - Rem = fun () -> - ok = msg_store_remove(MSCS, IsPersistent, [Guid]) - end, - Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexS1) end, - IndexS2 = - case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of - {false, true, false, _} -> Rem(), IndexS1; - {false, true, true, _} -> Rem(), Ack(); - { true, true, true, false} -> Ack(); - _ -> IndexS1 - end, + IndexS2 = IndexS1, {AckTag, S1} = case AckRequired of true -> SN = record_pending_ack( @@ -374,8 +338,7 @@ tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), case IsPersistent andalso IsDurable of true -> M = m(true, undefined, Msg, MsgProps), - #m { msg_on_disk = true } = - maybe_write_msg_to_disk(false, M, MSCS); + maybe_write_msg_to_disk(false, M, MSCS); false -> ok end, a(S). @@ -451,17 +414,14 @@ handle_pre_hibernate(S = #s { index_s = IndexS }) -> S #s { index_s = rabbit_queue_index:flush(IndexS) }. status(#s { - q1 = Q1, q2 = Q2, q3 = Q3, q4 = Q4, + q = Q, len = Len, pending_ack = PA, ram_ack_index = RAI, on_sync = #sync { funs = From }, next_seq_id = NextSeqId, - persistent_count = PersistentCount } ) -> - [ {q1 , queue:len(Q1)}, - {q2 , bpqueue:len(Q2)}, - {q3 , bpqueue:len(Q3)}, - {q4 , queue:len(Q4)}, + persistent_count = PersistentCount }) -> + [ {q , queue:len(Q)}, {len , Len}, {pending_acks , dict:size(PA)}, {outstanding_txns , length(From)}, @@ -473,35 +433,11 @@ status(#s { %% Minor helpers %%---------------------------------------------------------------------------- -a(S = #s { q1 = Q1, q2 = Q2, q3 = Q3, q4 = Q4, - len = Len, - persistent_count = PersistentCount }) -> - E1 = queue:is_empty(Q1), - E2 = bpqueue:is_empty(Q2), - E3 = bpqueue:is_empty(Q3), - E4 = queue:is_empty(Q4), - LZ = Len == 0, - - true = E1 or not E3, - true = E2, - true = LZ == (E3 and E4), - - true = Len >= 0, - true = PersistentCount >= 0, - - S. - -m(M = #m { msg = Msg, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }) -> - true = (not IsPersistent) or IndexOnDisk, - true = (not IndexOnDisk) or MsgOnDisk, - true = (Msg =/= undefined) or MsgOnDisk, +a(S) -> S. - M. +m(M) -> M. -one_if(true ) -> 1; +one_if(true) -> 1; one_if(false) -> 0. cons_if(true, E, L) -> [E | L]; @@ -514,7 +450,6 @@ m(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, MsgProps) -> #m { seq_id = SeqId, guid = Guid, msg = Msg, is_persistent = IsPersistent, is_delivered = false, - msg_on_disk = false, index_on_disk = false, msg_props = MsgProps }. with_msg_store_s({MSCSP, MSCST}, true, F) -> @@ -539,11 +474,6 @@ msg_store_client_init(MsgStore, Ref, MsgOnDiskF) -> MsgStore, Ref, MsgOnDiskF, msg_store_close_fds_fun(MsgStore =:= ?PERSISTENT_MSG_STORE)). -msg_store_write(MSCS, IsPersistent, Guid, Msg) -> - with_immutable_msg_store_s( - MSCS, IsPersistent, - fun (MSCS1) -> rabbit_msg_store:write(Guid, Msg, MSCS1) end). - msg_store_read(MSCS, IsPersistent, Guid) -> with_msg_store_s( MSCS, IsPersistent, @@ -581,11 +511,6 @@ msg_store_close_fds_fun(IsPersistent) -> end) end. -maybe_write_delivered(false, _SeqId, IndexS) -> - IndexS; -maybe_write_delivered(true, SeqId, IndexS) -> - rabbit_queue_index:deliver([SeqId], IndexS). - lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx { pending_messages = [], pending_acks = [] }; @@ -600,9 +525,6 @@ persistent_guids(Pubs) -> [Guid || {#basic_message { guid = Guid, is_persistent = true }, _MsgProps} <- Pubs]. -beta_fold(F, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> F(Value, Acc) end, Init, Q). - %%---------------------------------------------------------------------------- %% Internal major helpers for Public API %%---------------------------------------------------------------------------- @@ -612,10 +534,7 @@ init6(IsDurable, IndexS, DeltaCount, Terms, PersistentClient, TransientClient) - DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), S = #s { - q1 = queue:new(), - q2 = bpqueue:new(), - q3 = bpqueue:new(), - q4 = queue:new(), + q = queue:new(), next_seq_id = NextSeqId, pending_ack = dict:new(), ram_ack_index = gb_trees:empty(), @@ -628,8 +547,6 @@ init6(IsDurable, IndexS, DeltaCount, Terms, PersistentClient, TransientClient) - len = DeltaCount1, persistent_count = DeltaCount1, - msgs_on_disk = gb_sets:new(), - msg_indices_on_disk = gb_sets:new(), unconfirmed = gb_sets:new() }, a(S). @@ -716,20 +633,7 @@ tx_commit_index(S = #s { on_sync = #sync { [ F() || F <- lists:reverse(SFs) ], S1 #s { index_s = IndexS1, on_sync = ?BLANK_SYNC }. -purge_betas_and_deltas(LensByStore, - S = #s { q3 = Q3, - index_s = IndexS, - msg_store_clients = MSCS }) -> - case bpqueue:is_empty(Q3) of - true -> {LensByStore, S}; - false -> {LensByStore1, IndexS1} = - remove_queue_entries(fun beta_fold/3, Q3, - LensByStore, IndexS, MSCS), - purge_betas_and_deltas(LensByStore1, - S #s { - q3 = bpqueue:new(), - index_s = IndexS1 }) - end. +purge_betas_and_deltas(LensByStore, S) -> {LensByStore, S}. remove_queue_entries(Fold, Q, LensByStore, IndexS, MSCS) -> {GuidsByStore, Delivers, Acks} = @@ -741,17 +645,8 @@ remove_queue_entries(Fold, Q, LensByStore, IndexS, MSCS) -> rabbit_queue_index:ack(Acks, rabbit_queue_index:deliver(Delivers, IndexS))}. -remove_queue_entries1( - #m { guid = Guid, seq_id = SeqId, - is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, - {GuidsByStore, Delivers, Acks}) -> - {case MsgOnDisk of - true -> rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore); - false -> GuidsByStore - end, - cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), - cons_if(IndexOnDisk, SeqId, Acks)}. +remove_queue_entries1(_, {GuidsByStore, Delivers, Acks}) -> + {GuidsByStore, Delivers, Acks}. sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> orddict:fold( @@ -765,21 +660,18 @@ sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, MsgOnDisk, - S = #s { q1 = Q1, q3 = Q3, q4 = Q4, + IsDelivered, + _, + S = #s { q = Q, next_seq_id = SeqId, len = Len, persistent_count = PCount, durable = IsDurable, unconfirmed = UC }) -> IsPersistent1 = IsDurable andalso IsPersistent, - M = (m(IsPersistent1, SeqId, Msg, MsgProps)) - #m { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, + M = (m(IsPersistent1, SeqId, Msg, MsgProps)) #m { is_delivered = IsDelivered }, {M1, S1} = maybe_write_to_disk(false, false, M, S), - S2 = case bpqueue:is_empty(Q3) of - false -> S1 #s { q1 = queue:in(m(M1), Q1) }; - true -> S1 #s { q4 = queue:in(m(M1), Q4) } - end, + S2 = S1 #s { q = queue:in(m(M1), Q) }, PCount1 = PCount + one_if(IsPersistent1), UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), {SeqId, S2 #s { next_seq_id = SeqId + 1, @@ -787,64 +679,22 @@ publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, persistent_count = PCount1, unconfirmed = UC1 }}. -maybe_write_msg_to_disk(_Force, M = #m { - msg_on_disk = true }, _MSCS) -> - M; -maybe_write_msg_to_disk(Force, M = #m { - msg = Msg, guid = Guid, - is_persistent = IsPersistent }, MSCS) - when Force orelse IsPersistent -> - Msg1 = Msg #basic_message { - content = rabbit_binary_parser:clear_decoded_content( - Msg #basic_message.content)}, - ok = msg_store_write(MSCS, IsPersistent, Guid, Msg1), - M #m { msg_on_disk = true }; -maybe_write_msg_to_disk(_Force, M, _MSCS) -> - M. - -maybe_write_index_to_disk(_Force, M = #m { - index_on_disk = true }, IndexS) -> - true = M #m.msg_on_disk, %% ASSERTION - {M, IndexS}; -maybe_write_index_to_disk(Force, M = #m { - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_props = MsgProps}, IndexS) - when Force orelse IsPersistent -> - true = M #m.msg_on_disk, %% ASSERTION - IndexS1 = rabbit_queue_index:publish( - Guid, SeqId, MsgProps, IsPersistent, IndexS), - {M #m { index_on_disk = true }, - maybe_write_delivered(IsDelivered, SeqId, IndexS1)}; -maybe_write_index_to_disk(_Force, M, IndexS) -> - {M, IndexS}. - -maybe_write_to_disk(ForceMsg, ForceIndex, M, - S = #s { index_s = IndexS, - msg_store_clients = MSCS }) -> +maybe_write_msg_to_disk(_Force, M, _MSCS) -> M. + +maybe_write_to_disk(ForceMsg, _, M, + S = #s { index_s = IndexS, msg_store_clients = MSCS }) -> M1 = maybe_write_msg_to_disk(ForceMsg, M, MSCS), - {M2, IndexS1} = - maybe_write_index_to_disk(ForceIndex, M1, IndexS), + {M2, IndexS1} = {M1, IndexS}, {M2, S #s { index_s = IndexS1 }}. %%---------------------------------------------------------------------------- %% Internal gubbins for acks %%---------------------------------------------------------------------------- -record_pending_ack(#m { seq_id = SeqId, - guid = Guid, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - msg_props = MsgProps } = M, +record_pending_ack(#m { seq_id = SeqId, guid = Guid } = M, S = #s { pending_ack = PA, ram_ack_index = RAI}) -> - {AckEntry, RAI1} = - case MsgOnDisk of - true -> {{IsPersistent, Guid, MsgProps}, RAI}; - false -> {M, gb_trees:insert(SeqId, Guid, RAI)} - end, + {AckEntry, RAI1} = {M, gb_trees:insert(SeqId, Guid, RAI)}, PA1 = dict:store(SeqId, AckEntry, PA), S #s { pending_ack = PA1, ram_ack_index = RAI1 }. @@ -898,10 +748,7 @@ ack(MsgStoreF, F, AckTags, S) -> accumulate_ack_init() -> {[], orddict:new()}. -accumulate_ack(_SeqId, #m { is_persistent = false, %% ASSERTIONS - msg_on_disk = false, - index_on_disk = false }, - {PersistentSeqIdsAcc, GuidsByStore}) -> +accumulate_ack(_SeqId, _, {PersistentSeqIdsAcc, GuidsByStore}) -> {PersistentSeqIdsAcc, GuidsByStore}; accumulate_ack(SeqId, {IsPersistent, Guid, _MsgProps}, {PersistentSeqIdsAcc, GuidsByStore}) -> @@ -918,12 +765,8 @@ find_persistent_count(LensByStore) -> %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- -remove_confirms(GuidSet, S = #s { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - S #s { msgs_on_disk = gb_sets:difference(MOD, GuidSet), - msg_indices_on_disk = gb_sets:difference(MIOD, GuidSet), - unconfirmed = gb_sets:difference(UC, GuidSet) }. +remove_confirms(GuidSet, S = #s { unconfirmed = UC }) -> + S #s { unconfirmed = gb_sets:difference(UC, GuidSet) }. msgs_confirmed(GuidSet, S) -> {gb_sets:to_list(GuidSet), remove_confirms(GuidSet, S)}. @@ -932,51 +775,11 @@ blind_confirm(QPid, GuidSet) -> rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( QPid, fun (S) -> msgs_confirmed(GuidSet, S) end). -msgs_written_to_disk(QPid, GuidSet, removed) -> - blind_confirm(QPid, GuidSet); -msgs_written_to_disk(QPid, GuidSet, written) -> +msgs_written_to_disk(QPid, GuidSet, removed) -> blind_confirm(QPid, GuidSet); +msgs_written_to_disk(QPid, _, written) -> rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (S = #s { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - msgs_confirmed(gb_sets:intersection(GuidSet, MIOD), - S #s { - msgs_on_disk = - gb_sets:intersection( - gb_sets:union(MOD, GuidSet), UC) }) - end). - -msg_indices_written_to_disk(QPid, GuidSet) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (S = #s { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - msgs_confirmed(gb_sets:intersection(GuidSet, MOD), - S #s { - msg_indices_on_disk = - gb_sets:intersection( - gb_sets:union(MIOD, GuidSet), UC) }) - end). - -%%---------------------------------------------------------------------------- -%% Phase changes -%%---------------------------------------------------------------------------- + QPid, fun (S) -> msgs_confirmed(gb_sets:new(), S) end). -fetch_from_q3(S = #s { - q1 = Q1, - q3 = Q3}) -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - {empty, S}; - {{value, _, M}, Q3a} -> - S1 = S #s { q3 = Q3a }, - S2 = - case bpqueue:is_empty(Q3a) of - true -> - S1 #s { q1 = queue:new(), - q4 = Q1 }; - false -> - S1 - end, - {loaded, {M, S2}} - end. +msg_indices_written_to_disk(QPid, _) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + QPid, fun (S) -> msgs_confirmed(gb_sets:new(), S) end). -- cgit v1.2.1 From 142a5d53f96b38e54802dd08309933229698b5b9 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 9 Feb 2011 18:49:37 -0800 Subject: Still typing. --- src/rabbit_ram_queue.erl | 145 +++++++++++++++-------------------------------- 1 file changed, 45 insertions(+), 100 deletions(-) diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 67e0ccdb..f49e4f8e 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -40,10 +40,8 @@ msg_store_clients, on_sync, durable, - transient_threshold, len, - persistent_count, unconfirmed }). @@ -92,9 +90,7 @@ durable :: boolean(), len :: non_neg_integer(), - persistent_count :: non_neg_integer(), - transient_threshold :: non_neg_integer(), unconfirmed :: gb_set() }). -type(state() :: s()). @@ -146,12 +142,12 @@ init(QueueName, IsDurable, Recover) -> init(QueueName, IsDurable, false, MsgOnDiskF, MsgIdxOnDiskF) -> IndexS = rabbit_queue_index:init(QueueName, MsgIdxOnDiskF), init6(IsDurable, IndexS, 0, [], - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskF); - false -> undefined - end, - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); + case IsDurable of + true -> msg_store_client_init(?PERSISTENT_MSG_STORE, + MsgOnDiskF); + false -> undefined + end, + msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); init(QueueName, true, true, MsgOnDiskF, MsgIdxOnDiskF) -> Terms = rabbit_queue_index:shutdown_terms(QueueName), @@ -177,9 +173,7 @@ init(QueueName, true, true, MsgOnDiskF, MsgIdxOnDiskF) -> init6(true, IndexS, DeltaCount, Terms1, PersistentClient, TransientClient). terminate(S) -> - S1 = #s { persistent_count = PCount, - index_s = IndexS, - msg_store_clients = {MSCSP, MSCST} } = + S1 = #s { index_s = IndexS, msg_store_clients = {MSCSP, MSCST} } = remove_pending_ack(true, tx_commit_index(S)), PRef = case MSCSP of undefined -> undefined; @@ -188,9 +182,7 @@ terminate(S) -> end, ok = rabbit_msg_store:client_terminate(MSCST), TRef = rabbit_msg_store:client_ref(MSCST), - Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}, - {persistent_count, PCount}], + Terms = [{persistent_ref, PRef}, {transient_ref, TRef}], a(S1 #s { index_s = rabbit_queue_index:terminate( Terms, IndexS), msg_store_clients = undefined }). @@ -211,20 +203,14 @@ delete_and_terminate(S) -> purge(S = #s { q = Q, index_s = IndexS, msg_store_clients = MSCS, - len = Len, - persistent_count = PCount }) -> - {LensByStore, IndexS1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q, - orddict:new(), IndexS, MSCS), - {LensByStore1, S1 = #s { index_s = IndexS2 }} = - purge_betas_and_deltas(LensByStore, - S #s { q = queue:new(), - index_s = IndexS1 }), - {LensByStore2, IndexS3} = {LensByStore1, IndexS2}, - PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, a(S1 #s { index_s = IndexS3, - len = 0, - persistent_count = PCount1 })}. + len = Len }) -> + {_, IndexS1} = remove_queue_entries( + fun rabbit_misc:queue_fold/3, Q, + orddict:new(), IndexS, MSCS), + S1 = #s { index_s = IndexS2 } = + S #s { q = queue:new(), index_s = IndexS1 }, + IndexS3 = IndexS2, + {Len, a(S1 #s { index_s = IndexS3, len = 0 })}. publish(Msg, MsgProps, S) -> {_SeqId, S1} = publish(Msg, MsgProps, false, false, S), @@ -240,19 +226,16 @@ publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, needs_confirming = NeedsConfirming }, S = #s { len = 0, next_seq_id = SeqId, - persistent_count = PCount, durable = IsDurable, unconfirmed = UC }) -> IsPersistent1 = IsDurable andalso IsPersistent, M = (m(IsPersistent1, SeqId, Msg, MsgProps)) #m { is_delivered = true }, - {M1, S1} = maybe_write_to_disk(false, false, M, S), + {M1, S1} = {M, S}, S2 = record_pending_ack(m(M1), S1), - PCount1 = PCount + one_if(IsPersistent1), UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), {SeqId, a(S2 #s { next_seq_id = SeqId + 1, - persistent_count = PCount1, - unconfirmed = UC1 })}. + unconfirmed = UC1 })}. dropwhile(Pred, S) -> {_OkOrEmpty, S1} = dropwhile1(Pred, S), @@ -282,7 +265,7 @@ fetch(AckRequired, S) -> internal_queue_out(F, S = #s { q = Q }) -> case queue:out(Q) of {empty, _Q} -> - {empty, S}; + {empty, S}; {{value, M}, Qa} -> F(M, S #s { q = Qa }) end. @@ -301,11 +284,8 @@ read_msg(M, S) -> internal_fetch(AckRequired, M = #m { seq_id = SeqId, msg = Msg, - is_persistent = IsPersistent, is_delivered = IsDelivered }, - S = #s {index_s = IndexS, - len = Len, - persistent_count = PCount }) -> + S = #s {index_s = IndexS, len = Len }) -> IndexS1 = IndexS, IndexS2 = IndexS1, @@ -318,13 +298,10 @@ internal_fetch(AckRequired, M = #m { false -> {undefined, S} end, - PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), Len1 = Len - 1, {{Msg, IsDelivered, AckTag, Len1}, - a(S1 #s { index_s = IndexS2, - len = Len1, - persistent_count = PCount1 })}. + a(S1 #s { index_s = IndexS2, len = Len1 })}. ack(AckTags, S) -> a(ack(fun msg_store_remove/3, @@ -332,13 +309,12 @@ ack(AckTags, S) -> AckTags, S)). tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, - S = #s { durable = IsDurable, - msg_store_clients = MSCS }) -> + S = #s { durable = IsDurable }) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), case IsPersistent andalso IsDurable of true -> M = m(true, undefined, Msg, MsgProps), - maybe_write_msg_to_disk(false, M, MSCS); + M; false -> ok end, a(S). @@ -383,20 +359,20 @@ requeue(AckTags, MsgPropsF, S) -> needs_confirming = false } end, a(ack(fun msg_store_release/3, - fun (#m { msg = Msg, msg_props = MsgProps }, S1) -> - {_SeqId, S2} = publish(Msg, MsgPropsF1(MsgProps), - true, false, S1), - S2; - ({IsPersistent, Guid, MsgProps}, S1) -> - #s { msg_store_clients = MSCS } = S1, - {{ok, Msg = #basic_message{}}, MSCS1} = - msg_store_read(MSCS, IsPersistent, Guid), - S2 = S1 #s { msg_store_clients = MSCS1 }, - {_SeqId, S3} = publish(Msg, MsgPropsF1(MsgProps), - true, true, S2), - S3 - end, - AckTags, S)). + fun (#m { msg = Msg, msg_props = MsgProps }, S1) -> + {_SeqId, S2} = publish(Msg, MsgPropsF1(MsgProps), + true, false, S1), + S2; + ({IsPersistent, Guid, MsgProps}, S1) -> + #s { msg_store_clients = MSCS } = S1, + {{ok, Msg = #basic_message{}}, MSCS1} = + msg_store_read(MSCS, IsPersistent, Guid), + S2 = S1 #s { msg_store_clients = MSCS1 }, + {_SeqId, S3} = publish(Msg, MsgPropsF1(MsgProps), + true, true, S2), + S3 + end, + AckTags, S)). len(#s { len = Len }) -> Len. @@ -419,15 +395,13 @@ status(#s { pending_ack = PA, ram_ack_index = RAI, on_sync = #sync { funs = From }, - next_seq_id = NextSeqId, - persistent_count = PersistentCount }) -> + next_seq_id = NextSeqId }) -> [ {q , queue:len(Q)}, {len , Len}, {pending_acks , dict:size(PA)}, {outstanding_txns , length(From)}, {ram_ack_count , gb_trees:size(RAI)}, - {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount} ]. + {next_seq_id , NextSeqId} ]. %%---------------------------------------------------------------------------- %% Minor helpers @@ -437,9 +411,6 @@ a(S) -> S. m(M) -> M. -one_if(true) -> 1; -one_if(false) -> 0. - cons_if(true, E, L) -> [E | L]; cons_if(false, _E, L) -> L. @@ -529,10 +500,9 @@ persistent_guids(Pubs) -> %% Internal major helpers for Public API %%---------------------------------------------------------------------------- -init6(IsDurable, IndexS, DeltaCount, Terms, PersistentClient, TransientClient) -> +init6(IsDurable, IndexS, _, _, PersistentClient, TransientClient) -> {_, NextSeqId, IndexS1} = rabbit_queue_index:bounds(IndexS), - DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), S = #s { q = queue:new(), next_seq_id = NextSeqId, @@ -542,10 +512,8 @@ init6(IsDurable, IndexS, DeltaCount, Terms, PersistentClient, TransientClient) - msg_store_clients = {PersistentClient, TransientClient}, on_sync = ?BLANK_SYNC, durable = IsDurable, - transient_threshold = NextSeqId, - len = DeltaCount1, - persistent_count = DeltaCount1, + len = 0, unconfirmed = gb_sets:new() }, a(S). @@ -633,8 +601,6 @@ tx_commit_index(S = #s { on_sync = #sync { [ F() || F <- lists:reverse(SFs) ], S1 #s { index_s = IndexS1, on_sync = ?BLANK_SYNC }. -purge_betas_and_deltas(LensByStore, S) -> {LensByStore, S}. - remove_queue_entries(Fold, Q, LensByStore, IndexS, MSCS) -> {GuidsByStore, Delivers, Acks} = Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), @@ -661,32 +627,21 @@ sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, IsDelivered, - _, + _, S = #s { q = Q, next_seq_id = SeqId, len = Len, - persistent_count = PCount, durable = IsDurable, unconfirmed = UC }) -> IsPersistent1 = IsDurable andalso IsPersistent, M = (m(IsPersistent1, SeqId, Msg, MsgProps)) #m { is_delivered = IsDelivered }, - {M1, S1} = maybe_write_to_disk(false, false, M, S), + {M1, S1} = {M, S}, S2 = S1 #s { q = queue:in(m(M1), Q) }, - PCount1 = PCount + one_if(IsPersistent1), UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), {SeqId, S2 #s { next_seq_id = SeqId + 1, len = Len + 1, - persistent_count = PCount1, unconfirmed = UC1 }}. -maybe_write_msg_to_disk(_Force, M, _MSCS) -> M. - -maybe_write_to_disk(ForceMsg, _, M, - S = #s { index_s = IndexS, msg_store_clients = MSCS }) -> - M1 = maybe_write_msg_to_disk(ForceMsg, M, MSCS), - {M2, IndexS1} = {M1, IndexS}, - {M2, S #s { index_s = IndexS1 }}. - %%---------------------------------------------------------------------------- %% Internal gubbins for acks %%---------------------------------------------------------------------------- @@ -726,8 +681,7 @@ ack(_MsgStoreF, _F, [], S) -> ack(MsgStoreF, F, AckTags, S) -> {{PersistentSeqIds, GuidsByStore}, S1 = #s { index_s = IndexS, - msg_store_clients = MSCS, - persistent_count = PCount }} = + msg_store_clients = MSCS }} = lists:foldl( fun (SeqId, {Acc, S2 = #s { pending_ack = PA, ram_ack_index = RAI }}) -> @@ -741,10 +695,7 @@ ack(MsgStoreF, F, AckTags, S) -> IndexS1 = rabbit_queue_index:ack(PersistentSeqIds, IndexS), [ok = MsgStoreF(MSCS, IsPersistent, Guids) || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( - orddict:new(), GuidsByStore)), - S1 #s { index_s = IndexS1, - persistent_count = PCount1 }. + S1 #s { index_s = IndexS1 }. accumulate_ack_init() -> {[], orddict:new()}. @@ -755,12 +706,6 @@ accumulate_ack(SeqId, {IsPersistent, Guid, _MsgProps}, {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore)}. -find_persistent_count(LensByStore) -> - case orddict:find(true, LensByStore) of - error -> 0; - {ok, Len} -> Len - end. - %%---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- -- cgit v1.2.1 From 2b5eccba5d408f3df119ea3800e2aa3085fc4936 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 10 Feb 2011 10:35:25 -0800 Subject: More typing. --- src/rabbit_ram_queue.erl | 256 +++++++++++------------------------------------ 1 file changed, 59 insertions(+), 197 deletions(-) diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index f49e4f8e..ab87f74e 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -26,8 +26,6 @@ -export([start/1, stop/0]). --export([start_msg_store/2, stop_msg_store/0, init/5]). - -behaviour(rabbit_backing_queue). -record(s, @@ -35,11 +33,9 @@ next_seq_id, pending_ack, pending_ack_index, - ram_ack_index, index_s, msg_store_clients, on_sync, - durable, len, @@ -50,7 +46,6 @@ { seq_id, guid, msg, - is_persistent, is_delivered, msg_props }). @@ -82,12 +77,10 @@ q :: queue(), next_seq_id :: seq_id(), pending_ack :: dict(), - ram_ack_index :: gb_tree(), index_s :: any(), msg_store_clients :: 'undefined' | {{any(), binary()}, {any(), binary()}}, on_sync :: sync(), - durable :: boolean(), len :: non_neg_integer(), @@ -107,49 +100,25 @@ %% Public API %%---------------------------------------------------------------------------- -start(DurableQueues) -> - {AllTerms, StartFS} = rabbit_queue_index:recover(DurableQueues), - start_msg_store( - [Ref || Terms <- AllTerms, - begin - Ref = proplists:get_value(persistent_ref, Terms), - Ref =/= undefined - end], - StartFS). - -stop() -> stop_msg_store(). - -start_msg_store(Refs, StartFS) -> - ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, - [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), - undefined, {fun (ok) -> finished end, ok}]), - ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, - [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), - Refs, StartFS]). - -stop_msg_store() -> - ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), - ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). - -init(QueueName, IsDurable, Recover) -> +start(_) -> ok. + +stop() -> ok. + +init(QueueName, false, Recover) -> Self = self(), - init(QueueName, IsDurable, Recover, - fun (Guids, ActionTaken) -> - msgs_written_to_disk(Self, Guids, ActionTaken) - end, - fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). + init5(QueueName, false, Recover, + fun (Guids, ActionTaken) -> + msgs_written_to_disk(Self, Guids, ActionTaken) + end, + fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). -init(QueueName, IsDurable, false, MsgOnDiskF, MsgIdxOnDiskF) -> +init5(QueueName, false, false, _, MsgIdxOnDiskF) -> IndexS = rabbit_queue_index:init(QueueName, MsgIdxOnDiskF), - init6(IsDurable, IndexS, 0, [], - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskF); - false -> undefined - end, + init6(IndexS, + undefined, msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); -init(QueueName, true, true, MsgOnDiskF, MsgIdxOnDiskF) -> +init5(QueueName, true, true, MsgOnDiskF, MsgIdxOnDiskF) -> Terms = rabbit_queue_index:shutdown_terms(QueueName), {PRef, TRef, Terms1} = case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of @@ -162,7 +131,7 @@ init(QueueName, true, true, MsgOnDiskF, MsgIdxOnDiskF) -> MsgOnDiskF), TransientClient = msg_store_client_init(?TRANSIENT_MSG_STORE, TRef, undefined), - {DeltaCount, IndexS} = + {_, IndexS} = rabbit_queue_index:recover( QueueName, Terms1, rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), @@ -170,7 +139,7 @@ init(QueueName, true, true, MsgOnDiskF, MsgIdxOnDiskF) -> rabbit_msg_store:contains(Guid, PersistentClient) end, MsgIdxOnDiskF), - init6(true, IndexS, DeltaCount, Terms1, PersistentClient, TransientClient). + init6(IndexS, PersistentClient, TransientClient). terminate(S) -> S1 = #s { index_s = IndexS, msg_store_clients = {MSCSP, MSCST} } = @@ -220,17 +189,13 @@ publish_delivered(false, #basic_message { guid = Guid }, _MsgProps, S = #s { len = 0 }) -> blind_confirm(self(), gb_sets:singleton(Guid)), {undefined, a(S)}; -publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, - guid = Guid }, +publish_delivered(true, Msg = #basic_message { guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, S = #s { len = 0, next_seq_id = SeqId, - durable = IsDurable, unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - M = (m(IsPersistent1, SeqId, Msg, MsgProps)) - #m { is_delivered = true }, + M = (m(SeqId, Msg, MsgProps)) #m { is_delivered = true }, {M1, S1} = {M, S}, S2 = record_pending_ack(m(M1), S1), UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), @@ -270,16 +235,7 @@ internal_queue_out(F, S = #s { q = Q }) -> F(M, S #s { q = Qa }) end. -read_msg(M = #m { msg = undefined, - guid = Guid, - is_persistent = IsPersistent }, - S = #s { msg_store_clients = MSCS}) -> - {{ok, Msg = #basic_message {}}, MSCS1} = - msg_store_read(MSCS, IsPersistent, Guid), - {M #m { msg = Msg }, - S #s { msg_store_clients = MSCS1 }}; -read_msg(M, S) -> - {M, S}. +read_msg(M, S) -> {M, S}. internal_fetch(AckRequired, M = #m { seq_id = SeqId, @@ -308,15 +264,9 @@ ack(AckTags, S) -> fun (_, S0) -> S0 end, AckTags, S)). -tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, - S = #s { durable = IsDurable }) -> +tx_publish(Txn, Msg, MsgProps, S) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), - case IsPersistent andalso IsDurable of - true -> M = m(true, undefined, Msg, MsgProps), - M; - false -> ok - end, a(S). tx_ack(Txn, AckTags, S) -> @@ -324,34 +274,16 @@ tx_ack(Txn, AckTags, S) -> store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), S. -tx_rollback(Txn, S = #s { durable = IsDurable, - msg_store_clients = MSCS }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), +tx_rollback(Txn, S) -> + #tx { pending_acks = AckTags } = lookup_tx(Txn), erase_tx(Txn), - ok = case IsDurable of - true -> msg_store_remove(MSCS, true, persistent_guids(Pubs)); - false -> ok - end, {lists:append(AckTags), a(S)}. -tx_commit(Txn, F, MsgPropsF, - S = #s { durable = IsDurable, - msg_store_clients = MSCS }) -> +tx_commit(Txn, F, MsgPropsF, S) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), - PersistentGuids = persistent_guids(Pubs), - HasPersistentPubs = PersistentGuids =/= [], - {AckTags1, - a(case IsDurable andalso HasPersistentPubs of - true -> ok = msg_store_sync( - MSCS, true, PersistentGuids, - msg_store_callback(PersistentGuids, Pubs, AckTags1, - F, MsgPropsF)), - S; - false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, - F, MsgPropsF, S) - end)}. + {AckTags1, a(tx_commit_post_msg_store(Pubs, AckTags1, F, MsgPropsF, S))}. requeue(AckTags, MsgPropsF, S) -> MsgPropsF1 = fun (MsgProps) -> @@ -363,10 +295,10 @@ requeue(AckTags, MsgPropsF, S) -> {_SeqId, S2} = publish(Msg, MsgPropsF1(MsgProps), true, false, S1), S2; - ({IsPersistent, Guid, MsgProps}, S1) -> + ({_, Guid, MsgProps}, S1) -> #s { msg_store_clients = MSCS } = S1, {{ok, Msg = #basic_message{}}, MSCS1} = - msg_store_read(MSCS, IsPersistent, Guid), + msg_store_read(MSCS, false, Guid), S2 = S1 #s { msg_store_clients = MSCS1 }, {_SeqId, S3} = publish(Msg, MsgPropsF1(MsgProps), true, true, S2), @@ -393,14 +325,12 @@ status(#s { q = Q, len = Len, pending_ack = PA, - ram_ack_index = RAI, on_sync = #sync { funs = From }, next_seq_id = NextSeqId }) -> [ {q , queue:len(Q)}, {len , Len}, {pending_acks , dict:size(PA)}, {outstanding_txns , length(From)}, - {ram_ack_count , gb_trees:size(RAI)}, {next_seq_id , NextSeqId} ]. %%---------------------------------------------------------------------------- @@ -417,10 +347,11 @@ cons_if(false, _E, L) -> L. gb_sets_maybe_insert(false, _Val, Set) -> Set; gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). -m(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, - MsgProps) -> - #m { seq_id = SeqId, guid = Guid, msg = Msg, - is_persistent = IsPersistent, is_delivered = false, +m(SeqId, Msg = #basic_message { guid = Guid }, MsgProps) -> + #m { seq_id = SeqId, + guid = Guid, + msg = Msg, + is_delivered = false, msg_props = MsgProps }. with_msg_store_s({MSCSP, MSCST}, true, F) -> @@ -460,11 +391,6 @@ msg_store_release(MSCS, IsPersistent, Guids) -> MSCS, IsPersistent, fun (MCSS1) -> rabbit_msg_store:release(Guids, MCSS1) end). -msg_store_sync(MSCS, IsPersistent, Guids, Callback) -> - with_immutable_msg_store_s( - MSCS, IsPersistent, - fun (MSCS1) -> rabbit_msg_store:sync(Guids, Callback, MSCS1) end). - msg_store_close_fds(MSCS, IsPersistent) -> with_msg_store_s( MSCS, IsPersistent, @@ -492,110 +418,55 @@ store_tx(Txn, Tx) -> put({txn, Txn}, Tx). erase_tx(Txn) -> erase({txn, Txn}). -persistent_guids(Pubs) -> - [Guid || {#basic_message { guid = Guid, - is_persistent = true }, _MsgProps} <- Pubs]. - %%---------------------------------------------------------------------------- %% Internal major helpers for Public API %%---------------------------------------------------------------------------- -init6(IsDurable, IndexS, _, _, PersistentClient, TransientClient) -> +init6(IndexS, PersistentClient, TransientClient) -> {_, NextSeqId, IndexS1} = rabbit_queue_index:bounds(IndexS), S = #s { q = queue:new(), next_seq_id = NextSeqId, pending_ack = dict:new(), - ram_ack_index = gb_trees:empty(), index_s = IndexS1, msg_store_clients = {PersistentClient, TransientClient}, on_sync = ?BLANK_SYNC, - durable = IsDurable, len = 0, unconfirmed = gb_sets:new() }, a(S). -msg_store_callback(PersistentGuids, Pubs, AckTags, F, MsgPropsF) -> - Self = self(), - F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( - Self, fun (SN) -> {[], tx_commit_post_msg_store( - true, Pubs, AckTags, - F, MsgPropsF, SN)} - end) - end, - fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( - fun () -> remove_persistent_messages( - PersistentGuids) - end, F) - end) - end. - -remove_persistent_messages(Guids) -> - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, undefined), - ok = rabbit_msg_store:remove(Guids, PersistentClient), - rabbit_msg_store:client_delete_and_terminate(PersistentClient). - -tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, F, MsgPropsF, - S = #s { - on_sync = OnSync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFs }, - pending_ack = PA, - durable = IsDurable }) -> - PersistentAcks = - case IsDurable of - true -> [AckTag || AckTag <- AckTags, - case dict:fetch(AckTag, PA) of - #m {} -> - false; - {IsPersistent, _Guid, _MsgProps} -> - IsPersistent - end]; - false -> [] - end, - case IsDurable andalso (HasPersistentPubs orelse PersistentAcks =/= []) of - true -> S #s { - on_sync = #sync { - acks_persistent = [PersistentAcks | SPAcks], - acks_all = [AckTags | SAcks], - pubs = [{MsgPropsF, Pubs} | SPubs], - funs = [F | SFs] }}; - false -> S1 = tx_commit_index( - S #s { - on_sync = #sync { - acks_persistent = [], - acks_all = [AckTags], - pubs = [{MsgPropsF, Pubs}], - funs = [F] } }), - S1 #s { on_sync = OnSync } - end. - -tx_commit_index(S = #s { on_sync = ?BLANK_SYNC }) -> - S; +tx_commit_post_msg_store(Pubs, + AckTags, + F, + MsgPropsF, + S = #s { on_sync = OnSync }) -> + S1 = tx_commit_index( + S #s { + on_sync = #sync { + acks_persistent = [], + acks_all = [AckTags], + pubs = [{MsgPropsF, Pubs}], + funs = [F] } }), + S1 #s { on_sync = OnSync }. + +tx_commit_index(S = #s { on_sync = ?BLANK_SYNC }) -> S; tx_commit_index(S = #s { on_sync = #sync { acks_persistent = SPAcks, acks_all = SAcks, pubs = SPubs, - funs = SFs }, - durable = IsDurable }) -> + funs = SFs } }) -> PAcks = lists:append(SPAcks), Acks = lists:append(SAcks), Pubs = [{Msg, F(MsgProps)} || {F, PubsN} <- lists:reverse(SPubs), {Msg, MsgProps} <- lists:reverse(PubsN)], {SeqIds, S1 = #s { index_s = IndexS }} = lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, - MsgProps}, - {SeqIdsAcc, S2}) -> - IsPersistent1 = IsDurable andalso IsPersistent, - {SeqId, S3} = - publish(Msg, MsgProps, false, IsPersistent1, S2), - {cons_if(IsPersistent1, SeqId, SeqIdsAcc), S3} + fun ({Msg, MsgProps}, {SeqIdsAcc, S2}) -> + {_, S3} = publish(Msg, MsgProps, false, false, S2), + {SeqIdsAcc, S3} end, {PAcks, ack(Acks, S)}, Pubs), IndexS1 = rabbit_queue_index:sync(SeqIds, IndexS), [ F() || F <- lists:reverse(SFs) ], @@ -624,17 +495,15 @@ sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> %% Internal gubbins for publishing %%---------------------------------------------------------------------------- -publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, +publish(Msg = #basic_message { guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, IsDelivered, _, S = #s { q = Q, next_seq_id = SeqId, len = Len, - durable = IsDurable, unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - M = (m(IsPersistent1, SeqId, Msg, MsgProps)) #m { is_delivered = IsDelivered }, + M = (m(SeqId, Msg, MsgProps)) #m { is_delivered = IsDelivered }, {M1, S1} = {M, S}, S2 = S1 #s { q = queue:in(m(M1), Q) }, UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), @@ -646,13 +515,10 @@ publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, %% Internal gubbins for acks %%---------------------------------------------------------------------------- -record_pending_ack(#m { seq_id = SeqId, guid = Guid } = M, - S = #s { pending_ack = PA, - ram_ack_index = RAI}) -> - {AckEntry, RAI1} = {M, gb_trees:insert(SeqId, Guid, RAI)}, +record_pending_ack(#m { seq_id = SeqId } = M, S = #s { pending_ack = PA }) -> + AckEntry = M, PA1 = dict:store(SeqId, AckEntry, PA), - S #s { pending_ack = PA1, - ram_ack_index = RAI1 }. + S #s { pending_ack = PA1 }. remove_pending_ack(KeepPersistent, S = #s { pending_ack = PA, @@ -660,8 +526,7 @@ remove_pending_ack(KeepPersistent, msg_store_clients = MSCS }) -> {PersistentSeqIds, GuidsByStore} = dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - S1 = S #s { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, + S1 = S #s { pending_ack = dict:new() }, case KeepPersistent of true -> case orddict:find(false, GuidsByStore) of error -> S1; @@ -683,14 +548,11 @@ ack(MsgStoreF, F, AckTags, S) -> S1 = #s { index_s = IndexS, msg_store_clients = MSCS }} = lists:foldl( - fun (SeqId, {Acc, S2 = #s { pending_ack = PA, - ram_ack_index = RAI }}) -> + fun (SeqId, {Acc, S2 = #s { pending_ack = PA }}) -> AckEntry = dict:fetch(SeqId, PA), {accumulate_ack(SeqId, AckEntry, Acc), F(AckEntry, S2 #s { - pending_ack = dict:erase(SeqId, PA), - ram_ack_index = - gb_trees:delete_any(SeqId, RAI)})} + pending_ack = dict:erase(SeqId, PA)})} end, {accumulate_ack_init(), S}, AckTags), IndexS1 = rabbit_queue_index:ack(PersistentSeqIds, IndexS), [ok = MsgStoreF(MSCS, IsPersistent, Guids) -- cgit v1.2.1 From cf686715e312a1cd00c98206b35eaf782fa333db Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 10 Feb 2011 11:18:53 -0800 Subject: Still typing.make --- src/rabbit_ram_queue.erl | 348 +++++++---------------------------------------- 1 file changed, 50 insertions(+), 298 deletions(-) diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index ab87f74e..65ddb1ff 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -33,18 +33,11 @@ next_seq_id, pending_ack, pending_ack_index, - index_s, - msg_store_clients, - on_sync, - - len, - unconfirmed }). -record(m, { seq_id, - guid, msg, is_delivered, msg_props @@ -52,8 +45,6 @@ -record(tx, { pending_messages, pending_acks }). --record(sync, { acks_persistent, acks_all, pubs, funs }). - -define(IO_BATCH_SIZE, 64). -define(PERSISTENT_MSG_STORE, msg_store_persistent). -define(TRANSIENT_MSG_STORE, msg_store_transient). @@ -67,23 +58,10 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id()). --type(sync() :: #sync { acks_persistent :: [[seq_id()]], - acks_all :: [[seq_id()]], - pubs :: [{message_properties_transformer(), - [rabbit_types:basic_message()]}], - funs :: [fun (() -> any())] }). - -type(s() :: #s { q :: queue(), next_seq_id :: seq_id(), pending_ack :: dict(), - index_s :: any(), - msg_store_clients :: 'undefined' | {{any(), binary()}, - {any(), binary()}}, - on_sync :: sync(), - - len :: non_neg_integer(), - unconfirmed :: gb_set() }). -type(state() :: s()). @@ -104,96 +82,42 @@ start(_) -> ok. stop() -> ok. -init(QueueName, false, Recover) -> - Self = self(), - init5(QueueName, false, Recover, - fun (Guids, ActionTaken) -> - msgs_written_to_disk(Self, Guids, ActionTaken) - end, - fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). - -init5(QueueName, false, false, _, MsgIdxOnDiskF) -> - IndexS = rabbit_queue_index:init(QueueName, MsgIdxOnDiskF), - init6(IndexS, - undefined, - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); - -init5(QueueName, true, true, MsgOnDiskF, MsgIdxOnDiskF) -> - Terms = rabbit_queue_index:shutdown_terms(QueueName), - {PRef, TRef, Terms1} = - case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of - [] -> {proplists:get_value(persistent_ref, Terms), - proplists:get_value(transient_ref, Terms), - Terms}; - _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} - end, - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef, - MsgOnDiskF), - TransientClient = msg_store_client_init(?TRANSIENT_MSG_STORE, TRef, - undefined), - {_, IndexS} = - rabbit_queue_index:recover( - QueueName, Terms1, - rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), - fun (Guid) -> - rabbit_msg_store:contains(Guid, PersistentClient) - end, - MsgIdxOnDiskF), - init6(IndexS, PersistentClient, TransientClient). +init(_, _, _) -> + S = #s { + q = queue:new(), + next_seq_id = 0, + pending_ack = dict:new(), + unconfirmed = gb_sets:new() }, + a(S). terminate(S) -> - S1 = #s { index_s = IndexS, msg_store_clients = {MSCSP, MSCST} } = - remove_pending_ack(true, tx_commit_index(S)), - PRef = case MSCSP of - undefined -> undefined; - _ -> ok = rabbit_msg_store:client_terminate(MSCSP), - rabbit_msg_store:client_ref(MSCSP) - end, - ok = rabbit_msg_store:client_terminate(MSCST), - TRef = rabbit_msg_store:client_ref(MSCST), - Terms = [{persistent_ref, PRef}, {transient_ref, TRef}], - a(S1 #s { index_s = rabbit_queue_index:terminate( - Terms, IndexS), - msg_store_clients = undefined }). + S1 = remove_pending_ack(S), + a(S1). delete_and_terminate(S) -> {_PurgeCount, S1} = purge(S), - S2 = #s { index_s = IndexS, msg_store_clients = {MSCSP, MSCST} } = - remove_pending_ack(false, S1), - IndexS1 = rabbit_queue_index:delete_and_terminate(IndexS), - case MSCSP of - undefined -> ok; - _ -> rabbit_msg_store:client_delete_and_terminate(MSCSP) - end, - rabbit_msg_store:client_delete_and_terminate(MSCST), - a(S2 #s { index_s = IndexS1, - msg_store_clients = undefined }). - -purge(S = #s { q = Q, - index_s = IndexS, - msg_store_clients = MSCS, - len = Len }) -> - {_, IndexS1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q, - orddict:new(), IndexS, MSCS), - S1 = #s { index_s = IndexS2 } = - S #s { q = queue:new(), index_s = IndexS1 }, - IndexS3 = IndexS2, - {Len, a(S1 #s { index_s = IndexS3, len = 0 })}. + S2 = remove_pending_ack(S1), + a(S2). + +purge(S = #s { q = Q }) -> + S1 = S #s { q = queue:new() }, + {queue:size(Q), a(S)}. publish(Msg, MsgProps, S) -> {_SeqId, S1} = publish(Msg, MsgProps, false, false, S), a(S1). -publish_delivered(false, #basic_message { guid = Guid }, - _MsgProps, S = #s { len = 0 }) -> +publish_delivered(false, + #basic_message { guid = Guid }, + _MsgProps, + S) -> blind_confirm(self(), gb_sets:singleton(Guid)), {undefined, a(S)}; -publish_delivered(true, Msg = #basic_message { guid = Guid }, +publish_delivered(true, + Msg = #basic_message { guid = Guid }, MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - S = #s { len = 0, - next_seq_id = SeqId, + S = #s { next_seq_id = SeqId, unconfirmed = UC }) -> M = (m(SeqId, Msg, MsgProps)) #m { is_delivered = true }, {M1, S1} = {M, S}, @@ -241,28 +165,16 @@ internal_fetch(AckRequired, M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, - S = #s {index_s = IndexS, len = Len }) -> - IndexS1 = IndexS, - - IndexS2 = IndexS1, - + S = #s { q = Q }) -> {AckTag, S1} = case AckRequired of true -> SN = record_pending_ack( - M #m { - is_delivered = true }, S), + M #m { is_delivered = true }, S), {SeqId, SN}; false -> {undefined, S} end, + {{Msg, IsDelivered, AckTag, Len1}, a(S1)}. - Len1 = Len - 1, - - {{Msg, IsDelivered, AckTag, Len1}, - a(S1 #s { index_s = IndexS2, len = Len1 })}. - -ack(AckTags, S) -> - a(ack(fun msg_store_remove/3, - fun (_, S0) -> S0 end, - AckTags, S)). +ack(AckTags, S) -> a(ack(fun (_, S0) -> S0 end, AckTags, S)). tx_publish(Txn, Msg, MsgProps, S) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), @@ -290,25 +202,16 @@ requeue(AckTags, MsgPropsF, S) -> (MsgPropsF(MsgProps)) #message_properties { needs_confirming = false } end, - a(ack(fun msg_store_release/3, - fun (#m { msg = Msg, msg_props = MsgProps }, S1) -> + a(ack(fun (#m { msg = Msg, msg_props = MsgProps }, S1) -> {_SeqId, S2} = publish(Msg, MsgPropsF1(MsgProps), true, false, S1), - S2; - ({_, Guid, MsgProps}, S1) -> - #s { msg_store_clients = MSCS } = S1, - {{ok, Msg = #basic_message{}}, MSCS1} = - msg_store_read(MSCS, false, Guid), - S2 = S1 #s { msg_store_clients = MSCS1 }, - {_SeqId, S3} = publish(Msg, MsgPropsF1(MsgProps), - true, true, S2), - S3 + S2 end, AckTags, S)). -len(#s { len = Len }) -> Len. +len(#s { q = Q }) -> queue:size(Q). -is_empty(S) -> 0 == len(S). +is_empty(S #s { q = Q }) -> queue:empty(Q). set_ram_duration_target(_, S) -> S. @@ -318,19 +221,15 @@ needs_idle_timeout(_) -> false. idle_timeout(S) -> S. -handle_pre_hibernate(S = #s { index_s = IndexS }) -> - S #s { index_s = rabbit_queue_index:flush(IndexS) }. +handle_pre_hibernate(S) -> S. status(#s { q = Q, - len = Len, pending_ack = PA, - on_sync = #sync { funs = From }, next_seq_id = NextSeqId }) -> [ {q , queue:len(Q)}, {len , Len}, {pending_acks , dict:size(PA)}, - {outstanding_txns , length(From)}, {next_seq_id , NextSeqId} ]. %%---------------------------------------------------------------------------- @@ -341,73 +240,15 @@ a(S) -> S. m(M) -> M. -cons_if(true, E, L) -> [E | L]; -cons_if(false, _E, L) -> L. - gb_sets_maybe_insert(false, _Val, Set) -> Set; gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). -m(SeqId, Msg = #basic_message { guid = Guid }, MsgProps) -> +m(SeqId, Msg, MsgProps) -> #m { seq_id = SeqId, - guid = Guid, msg = Msg, is_delivered = false, msg_props = MsgProps }. -with_msg_store_s({MSCSP, MSCST}, true, F) -> - {Result, MSCSP1} = F(MSCSP), - {Result, {MSCSP1, MSCST}}; -with_msg_store_s({MSCSP, MSCST}, false, F) -> - {Result, MSCST1} = F(MSCST), - {Result, {MSCSP, MSCST1}}. - -with_immutable_msg_store_s(MSCS, IsPersistent, F) -> - {Res, MSCS} = with_msg_store_s(MSCS, IsPersistent, - fun (MSCS1) -> - {F(MSCS1), MSCS1} - end), - Res. - -msg_store_client_init(MsgStore, MsgOnDiskF) -> - msg_store_client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskF). - -msg_store_client_init(MsgStore, Ref, MsgOnDiskF) -> - rabbit_msg_store:client_init( - MsgStore, Ref, MsgOnDiskF, - msg_store_close_fds_fun(MsgStore =:= ?PERSISTENT_MSG_STORE)). - -msg_store_read(MSCS, IsPersistent, Guid) -> - with_msg_store_s( - MSCS, IsPersistent, - fun (MSCS1) -> rabbit_msg_store:read(Guid, MSCS1) end). - -msg_store_remove(MSCS, IsPersistent, Guids) -> - with_immutable_msg_store_s( - MSCS, IsPersistent, - fun (MCSS1) -> rabbit_msg_store:remove(Guids, MCSS1) end). - -msg_store_release(MSCS, IsPersistent, Guids) -> - with_immutable_msg_store_s( - MSCS, IsPersistent, - fun (MCSS1) -> rabbit_msg_store:release(Guids, MCSS1) end). - -msg_store_close_fds(MSCS, IsPersistent) -> - with_msg_store_s( - MSCS, IsPersistent, - fun (MSCS1) -> rabbit_msg_store:close_all_indicated(MSCS1) end). - -msg_store_close_fds_fun(IsPersistent) -> - Self = self(), - fun () -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - Self, - fun (S = #s { msg_store_clients = MSCS }) -> - {ok, MSCS1} = - msg_store_close_fds(MSCS, IsPersistent), - {[], S #s { msg_store_clients = MSCS1 }} - end) - end. - lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx { pending_messages = [], pending_acks = [] }; @@ -422,74 +263,23 @@ erase_tx(Txn) -> erase({txn, Txn}). %% Internal major helpers for Public API %%---------------------------------------------------------------------------- -init6(IndexS, PersistentClient, TransientClient) -> - {_, NextSeqId, IndexS1} = rabbit_queue_index:bounds(IndexS), - - S = #s { - q = queue:new(), - next_seq_id = NextSeqId, - pending_ack = dict:new(), - index_s = IndexS1, - msg_store_clients = {PersistentClient, TransientClient}, - on_sync = ?BLANK_SYNC, - - len = 0, - - unconfirmed = gb_sets:new() }, - a(S). - -tx_commit_post_msg_store(Pubs, - AckTags, - F, - MsgPropsF, - S = #s { on_sync = OnSync }) -> - S1 = tx_commit_index( - S #s { - on_sync = #sync { - acks_persistent = [], - acks_all = [AckTags], - pubs = [{MsgPropsF, Pubs}], - funs = [F] } }), - S1 #s { on_sync = OnSync }. - -tx_commit_index(S = #s { on_sync = ?BLANK_SYNC }) -> S; -tx_commit_index(S = #s { on_sync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFs } }) -> +tx_commit_post_msg_store(Pubs, AckTags, F, MsgPropsF, S) -> + SPAcks = [], + SAcks = [AckTags], + SPubs = [{MsgPropsF, Pubs}], + SFs = [F], PAcks = lists:append(SPAcks), Acks = lists:append(SAcks), - Pubs = [{Msg, F(MsgProps)} || {F, PubsN} <- lists:reverse(SPubs), - {Msg, MsgProps} <- lists:reverse(PubsN)], - {SeqIds, S1 = #s { index_s = IndexS }} = + Pubs = [{Msg, F1(MsgProps)} || {F1, PubsN} <- lists:reverse(SPubs), + {Msg, MsgProps} <- lists:reverse(PubsN)], + {_, S1} = lists:foldl( fun ({Msg, MsgProps}, {SeqIdsAcc, S2}) -> {_, S3} = publish(Msg, MsgProps, false, false, S2), {SeqIdsAcc, S3} end, {PAcks, ack(Acks, S)}, Pubs), - IndexS1 = rabbit_queue_index:sync(SeqIds, IndexS), - [ F() || F <- lists:reverse(SFs) ], - S1 #s { index_s = IndexS1, on_sync = ?BLANK_SYNC }. - -remove_queue_entries(Fold, Q, LensByStore, IndexS, MSCS) -> - {GuidsByStore, Delivers, Acks} = - Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), - ok = orddict:fold(fun (IsPersistent, Guids, ok) -> - msg_store_remove(MSCS, IsPersistent, Guids) - end, ok, GuidsByStore), - {sum_guids_by_store_to_len(LensByStore, GuidsByStore), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexS))}. - -remove_queue_entries1(_, {GuidsByStore, Delivers, Acks}) -> - {GuidsByStore, Delivers, Acks}. - -sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> - orddict:fold( - fun (IsPersistent, Guids, LensByStore1) -> - orddict:update_counter(IsPersistent, length(Guids), LensByStore1) - end, LensByStore, GuidsByStore). + [ F1() || F1 <- lists:reverse(SFs) ], + S1. %%---------------------------------------------------------------------------- %% Internal gubbins for publishing @@ -501,15 +291,12 @@ publish(Msg = #basic_message { guid = Guid }, _, S = #s { q = Q, next_seq_id = SeqId, - len = Len, unconfirmed = UC }) -> M = (m(SeqId, Msg, MsgProps)) #m { is_delivered = IsDelivered }, {M1, S1} = {M, S}, S2 = S1 #s { q = queue:in(m(M1), Q) }, UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), - {SeqId, S2 #s { next_seq_id = SeqId + 1, - len = Len + 1, - unconfirmed = UC1 }}. + {SeqId, S2 #s { next_seq_id = SeqId + 1, unconfirmed = UC1 }}. %%---------------------------------------------------------------------------- %% Internal gubbins for acks @@ -520,33 +307,13 @@ record_pending_ack(#m { seq_id = SeqId } = M, S = #s { pending_ack = PA }) -> PA1 = dict:store(SeqId, AckEntry, PA), S #s { pending_ack = PA1 }. -remove_pending_ack(KeepPersistent, - S = #s { pending_ack = PA, - index_s = IndexS, - msg_store_clients = MSCS }) -> - {PersistentSeqIds, GuidsByStore} = - dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), +remove_pending_ack(S) -> S1 = S #s { pending_ack = dict:new() }, - case KeepPersistent of - true -> case orddict:find(false, GuidsByStore) of - error -> S1; - {ok, Guids} -> ok = msg_store_remove(MSCS, false, - Guids), - S1 - end; - false -> IndexS1 = - rabbit_queue_index:ack(PersistentSeqIds, IndexS), - [ok = msg_store_remove(MSCS, IsPersistent, Guids) - || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - S1 #s { index_s = IndexS1 } - end. + S1. -ack(_MsgStoreF, _F, [], S) -> - S; -ack(MsgStoreF, F, AckTags, S) -> - {{PersistentSeqIds, GuidsByStore}, - S1 = #s { index_s = IndexS, - msg_store_clients = MSCS }} = +ack(_F, [], S) -> S; +ack(F, AckTags, S) -> + {{_, _}, S1} = lists:foldl( fun (SeqId, {Acc, S2 = #s { pending_ack = PA }}) -> AckEntry = dict:fetch(SeqId, PA), @@ -554,19 +321,12 @@ ack(MsgStoreF, F, AckTags, S) -> F(AckEntry, S2 #s { pending_ack = dict:erase(SeqId, PA)})} end, {accumulate_ack_init(), S}, AckTags), - IndexS1 = rabbit_queue_index:ack(PersistentSeqIds, IndexS), - [ok = MsgStoreF(MSCS, IsPersistent, Guids) - || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - S1 #s { index_s = IndexS1 }. + S1. accumulate_ack_init() -> {[], orddict:new()}. accumulate_ack(_SeqId, _, {PersistentSeqIdsAcc, GuidsByStore}) -> - {PersistentSeqIdsAcc, GuidsByStore}; -accumulate_ack(SeqId, {IsPersistent, Guid, _MsgProps}, - {PersistentSeqIdsAcc, GuidsByStore}) -> - {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), - rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore)}. + {PersistentSeqIdsAcc, GuidsByStore}. %%---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) @@ -582,11 +342,3 @@ blind_confirm(QPid, GuidSet) -> rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( QPid, fun (S) -> msgs_confirmed(GuidSet, S) end). -msgs_written_to_disk(QPid, GuidSet, removed) -> blind_confirm(QPid, GuidSet); -msgs_written_to_disk(QPid, _, written) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (S) -> msgs_confirmed(gb_sets:new(), S) end). - -msg_indices_written_to_disk(QPid, _) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (S) -> msgs_confirmed(gb_sets:new(), S) end). -- cgit v1.2.1 From 9ec1a2c66dbbc8d1dbe87fd1526d871845e79c9a Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 10 Feb 2011 16:12:14 -0800 Subject: Finally figured out one of the calls to rabbit_amqqueue:maybe_run_queue_via_backing_queue_async. Wow. --- src/rabbit_ram_queue.erl | 232 +++++++++++++++++------------------------------ 1 file changed, 85 insertions(+), 147 deletions(-) diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 65ddb1ff..9e0bcc01 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -40,15 +40,11 @@ { seq_id, msg, is_delivered, - msg_props + props }). -record(tx, { pending_messages, pending_acks }). --define(IO_BATCH_SIZE, 64). --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). - -include("rabbit.hrl"). %%---------------------------------------------------------------------------- @@ -69,11 +65,6 @@ -endif. --define(BLANK_SYNC, #sync { acks_persistent = [], - acks_all = [], - pubs = [], - funs = [] }). - %%---------------------------------------------------------------------------- %% Public API %%---------------------------------------------------------------------------- @@ -83,103 +74,81 @@ start(_) -> ok. stop() -> ok. init(_, _, _) -> - S = #s { + #s { q = queue:new(), next_seq_id = 0, pending_ack = dict:new(), - unconfirmed = gb_sets:new() }, - a(S). + unconfirmed = gb_sets:new() }. -terminate(S) -> - S1 = remove_pending_ack(S), - a(S1). +terminate(S) -> remove_pending_ack(S). -delete_and_terminate(S) -> - {_PurgeCount, S1} = purge(S), - S2 = remove_pending_ack(S1), - a(S2). +delete_and_terminate(S) -> {_PurgeCount, S1} = purge(S), + remove_pending_ack(S1). -purge(S = #s { q = Q }) -> - S1 = S #s { q = queue:new() }, - {queue:size(Q), a(S)}. +purge(S = #s { q = Q }) -> {queue:len(Q), S #s { q = queue:new() }}. -publish(Msg, MsgProps, S) -> - {_SeqId, S1} = publish(Msg, MsgProps, false, false, S), - a(S1). +publish(Msg, Props, S) -> publish5(Msg, Props, false, S). publish_delivered(false, - #basic_message { guid = Guid }, - _MsgProps, - S) -> + #basic_message { guid = Guid }, + _Props, + S) -> blind_confirm(self(), gb_sets:singleton(Guid)), - {undefined, a(S)}; + {undefined, S}; publish_delivered(true, Msg = #basic_message { guid = Guid }, - MsgProps = #message_properties { - needs_confirming = NeedsConfirming }, - S = #s { next_seq_id = SeqId, - unconfirmed = UC }) -> - M = (m(SeqId, Msg, MsgProps)) #m { is_delivered = true }, - {M1, S1} = {M, S}, - S2 = record_pending_ack(m(M1), S1), + Props = #message_properties { + needs_confirming = NeedsConfirming }, + S = #s { next_seq_id = SeqId, unconfirmed = UC }) -> + S1 = record_pending_ack((m(SeqId, Msg, Props)) + #m { is_delivered = true }, S), UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), - {SeqId, a(S2 #s { next_seq_id = SeqId + 1, - unconfirmed = UC1 })}. + {SeqId, S1 #s { next_seq_id = SeqId + 1, unconfirmed = UC1 }}. -dropwhile(Pred, S) -> - {_OkOrEmpty, S1} = dropwhile1(Pred, S), - S1. +dropwhile(Pred, S) -> {_OkOrEmpty, S1} = dropwhile1(Pred, S), + S1. dropwhile1(Pred, S) -> internal_queue_out( - fun(M = #m { msg_props = MsgProps }, S1) -> - case Pred(MsgProps) of - true -> - {_, S2} = internal_fetch(false, M, S1), - dropwhile1(Pred, S2); - false -> - {M1, S2 = #s { q = Q }} = - read_msg(M, S1), - {ok, S2 #s {q = queue:in_r(M1, Q) }} + fun(M = #m { props = Props }, S1 = #s { q = Q }) -> + case Pred(Props) of + true -> {_, S2} = internal_fetch(false, M, S1), + dropwhile1(Pred, S2); + false -> {ok, S1 #s {q = queue:in_r(M, Q) }} end - end, S). + end, + S). fetch(AckRequired, S) -> internal_queue_out( - fun(M, S1) -> - {M1, S2} = read_msg(M, S1), - internal_fetch(AckRequired, M1, S2) - end, S). + fun(M, S1) -> internal_fetch(AckRequired, M, S1) end, S). internal_queue_out(F, S = #s { q = Q }) -> case queue:out(Q) of - {empty, _Q} -> - {empty, S}; - {{value, M}, Qa} -> - F(M, S #s { q = Qa }) + {empty, _Q} -> {empty, S}; + {{value, M}, Qa} -> F(M, S #s { q = Qa }) end. -read_msg(M, S) -> {M, S}. - -internal_fetch(AckRequired, M = #m { - seq_id = SeqId, - msg = Msg, - is_delivered = IsDelivered }, +internal_fetch(AckRequired, + M = #m { seq_id = SeqId, + msg = Msg, + is_delivered = IsDelivered }, S = #s { q = Q }) -> {AckTag, S1} = case AckRequired of true -> SN = record_pending_ack( - M #m { is_delivered = true }, S), + M #m { is_delivered = true }, + S), {SeqId, SN}; false -> {undefined, S} end, - {{Msg, IsDelivered, AckTag, Len1}, a(S1)}. + {{Msg, IsDelivered, AckTag, queue:len(Q)}, S1}. -ack(AckTags, S) -> a(ack(fun (_, S0) -> S0 end, AckTags, S)). +ack(AckTags, S) -> ack(fun (_, S0) -> S0 end, AckTags, S). -tx_publish(Txn, Msg, MsgProps, S) -> +tx_publish(Txn, Msg, Props, S) -> Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), - a(S). + store_tx(Txn, Tx #tx { pending_messages = [{Msg, Props} | Pubs] }), + S. tx_ack(Txn, AckTags, S) -> Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), @@ -189,29 +158,28 @@ tx_ack(Txn, AckTags, S) -> tx_rollback(Txn, S) -> #tx { pending_acks = AckTags } = lookup_tx(Txn), erase_tx(Txn), - {lists:append(AckTags), a(S)}. + {lists:append(AckTags), S}. -tx_commit(Txn, F, MsgPropsF, S) -> +tx_commit(Txn, F, PropsF, S) -> #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), erase_tx(Txn), AckTags1 = lists:append(AckTags), - {AckTags1, a(tx_commit_post_msg_store(Pubs, AckTags1, F, MsgPropsF, S))}. + {AckTags1, tx_commit_post_msg_store(Pubs, AckTags1, F, PropsF, S)}. -requeue(AckTags, MsgPropsF, S) -> - MsgPropsF1 = fun (MsgProps) -> - (MsgPropsF(MsgProps)) #message_properties { - needs_confirming = false } - end, - a(ack(fun (#m { msg = Msg, msg_props = MsgProps }, S1) -> - {_SeqId, S2} = publish(Msg, MsgPropsF1(MsgProps), - true, false, S1), - S2 - end, - AckTags, S)). +requeue(AckTags, PropsF, S) -> + PropsF1 = fun (Props) -> + (PropsF(Props)) #message_properties { + needs_confirming = false } + end, + ack(fun (#m { msg = Msg, props = Props }, S1) -> + publish5(Msg, PropsF1(Props), true, S1) + end, + AckTags, + S). -len(#s { q = Q }) -> queue:size(Q). +len(#s { q = Q }) -> queue:len(Q). -is_empty(S #s { q = Q }) -> queue:empty(Q). +is_empty(#s { q = Q }) -> queue:is_empty(Q). set_ram_duration_target(_, S) -> S. @@ -223,12 +191,9 @@ idle_timeout(S) -> S. handle_pre_hibernate(S) -> S. -status(#s { - q = Q, - pending_ack = PA, - next_seq_id = NextSeqId }) -> +status(#s { q = Q, pending_ack = PA, next_seq_id = NextSeqId }) -> [ {q , queue:len(Q)}, - {len , Len}, + {len , queue:len(Q)}, {pending_acks , dict:size(PA)}, {next_seq_id , NextSeqId} ]. @@ -236,18 +201,13 @@ status(#s { %% Minor helpers %%---------------------------------------------------------------------------- -a(S) -> S. - -m(M) -> M. - gb_sets_maybe_insert(false, _Val, Set) -> Set; gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). -m(SeqId, Msg, MsgProps) -> - #m { seq_id = SeqId, - msg = Msg, - is_delivered = false, - msg_props = MsgProps }. +m(SeqId, Msg, Props) -> #m { seq_id = SeqId, + msg = Msg, + is_delivered = false, + props = Props }. lookup_tx(Txn) -> case get({txn, Txn}) of undefined -> #tx { pending_messages = [], @@ -263,40 +223,28 @@ erase_tx(Txn) -> erase({txn, Txn}). %% Internal major helpers for Public API %%---------------------------------------------------------------------------- -tx_commit_post_msg_store(Pubs, AckTags, F, MsgPropsF, S) -> - SPAcks = [], - SAcks = [AckTags], - SPubs = [{MsgPropsF, Pubs}], - SFs = [F], - PAcks = lists:append(SPAcks), - Acks = lists:append(SAcks), - Pubs = [{Msg, F1(MsgProps)} || {F1, PubsN} <- lists:reverse(SPubs), - {Msg, MsgProps} <- lists:reverse(PubsN)], - {_, S1} = - lists:foldl( - fun ({Msg, MsgProps}, {SeqIdsAcc, S2}) -> - {_, S3} = publish(Msg, MsgProps, false, false, S2), - {SeqIdsAcc, S3} - end, {PAcks, ack(Acks, S)}, Pubs), - [ F1() || F1 <- lists:reverse(SFs) ], +tx_commit_post_msg_store(Pubs, AckTags, F, PropsF, S) -> + Pubs2 = [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)], + S1 = lists:foldl( + fun ({Msg, Props}, S2) -> publish5(Msg, Props, false, S2) end, + ack(AckTags, S), + Pubs2), + F(), S1. %%---------------------------------------------------------------------------- %% Internal gubbins for publishing %%---------------------------------------------------------------------------- -publish(Msg = #basic_message { guid = Guid }, - MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, - _, - S = #s { q = Q, - next_seq_id = SeqId, - unconfirmed = UC }) -> - M = (m(SeqId, Msg, MsgProps)) #m { is_delivered = IsDelivered }, - {M1, S1} = {M, S}, - S2 = S1 #s { q = queue:in(m(M1), Q) }, +publish5(Msg = #basic_message { guid = Guid }, + Props = #message_properties { needs_confirming = NeedsConfirming }, + IsDelivered, + S = #s { q = Q, next_seq_id = SeqId, unconfirmed = UC }) -> + S1 = S #s { q = queue:in((m(SeqId, Msg, Props)) + #m { is_delivered = IsDelivered }, + Q) }, UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), - {SeqId, S2 #s { next_seq_id = SeqId + 1, unconfirmed = UC1 }}. + S1 #s { next_seq_id = SeqId + 1, unconfirmed = UC1 }. %%---------------------------------------------------------------------------- %% Internal gubbins for acks @@ -307,26 +255,16 @@ record_pending_ack(#m { seq_id = SeqId } = M, S = #s { pending_ack = PA }) -> PA1 = dict:store(SeqId, AckEntry, PA), S #s { pending_ack = PA1 }. -remove_pending_ack(S) -> - S1 = S #s { pending_ack = dict:new() }, - S1. +remove_pending_ack(S) -> S #s { pending_ack = dict:new() }. -ack(_F, [], S) -> S; ack(F, AckTags, S) -> - {{_, _}, S1} = - lists:foldl( - fun (SeqId, {Acc, S2 = #s { pending_ack = PA }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), - F(AckEntry, S2 #s { - pending_ack = dict:erase(SeqId, PA)})} - end, {accumulate_ack_init(), S}, AckTags), - S1. - -accumulate_ack_init() -> {[], orddict:new()}. - -accumulate_ack(_SeqId, _, {PersistentSeqIdsAcc, GuidsByStore}) -> - {PersistentSeqIdsAcc, GuidsByStore}. + lists:foldl( + fun (SeqId, S2 = #s { pending_ack = PA }) -> + AckEntry = dict:fetch(SeqId, PA), + F(AckEntry, S2 #s { pending_ack = dict:erase(SeqId, PA)}) + end, + S, + AckTags). %%---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) -- cgit v1.2.1 From 6d496d27279fc7d084925e5b8f6eb811d5a686c3 Mon Sep 17 00:00:00 2001 From: Tim Fox Date: Fri, 11 Feb 2011 17:34:28 +0000 Subject: Moved notification of queue deleted into Fun for the queue deleted case --- src/rabbit_amqqueue_process.erl | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 496b2064..5788e7b3 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -122,6 +122,8 @@ terminate({shutdown, _}, State = #q{backing_queue = BQ}) -> terminate(_Reason, State = #q{backing_queue = BQ}) -> %% FIXME: How do we cancel active subscriptions? terminate_shutdown(fun (BQS) -> + rabbit_event:notify( + queue_deleted, [{pid, self()}]), BQS1 = BQ:delete_and_terminate(BQS), %% don't care if the internal delete %% doesn't return 'ok'. @@ -186,7 +188,6 @@ terminate_shutdown(Fun, State) -> end, BQS, all_ch_record()), [emit_consumer_deleted(Ch, CTag) || {Ch, CTag, _} <- consumers(State1)], - rabbit_event:notify(queue_deleted, [{pid, self()}]), State1#q{backing_queue_state = Fun(BQS1)} end. -- cgit v1.2.1 From 761703107289691d5a1819d2300c47c2e7c9f193 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 11 Feb 2011 21:33:11 -0800 Subject: Figured out missing confirms. All tests pass but one. --- Makefile | 2 + src/rabbit_mnesia_queue.erl | 921 ++++++++++++++++++++++++++++++++++++++++++++ src/rabbit_ram_queue.erl | 737 ++++++++++++++++++++++++++--------- 3 files changed, 1470 insertions(+), 190 deletions(-) create mode 100644 src/rabbit_mnesia_queue.erl diff --git a/Makefile b/Makefile index 51b998f4..301e83e4 100644 --- a/Makefile +++ b/Makefile @@ -110,6 +110,8 @@ $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_c dialyze: $(BEAM_TARGETS) $(BASIC_PLT) dialyzer --plt $(BASIC_PLT) --no_native \ + -Wunmatched_returns -Werror_handling -Wbehaviours \ + -Wunderspecs \ -Wrace_conditions $(BEAM_TARGETS) # rabbit.plt is used by rabbitmq-erlang-client's dialyze make target diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl new file mode 100644 index 00000000..ef53035e --- /dev/null +++ b/src/rabbit_mnesia_queue.erl @@ -0,0 +1,921 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. +%% + +-module(rabbit_mnesia_queue). + +-export( + [start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, + tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, + idle_timeout/1, handle_pre_hibernate/1, status/1]). + +%%---------------------------------------------------------------------------- +%% This is a simple implementation of the rabbit_backing_queue +%% behavior, with all msgs in Mnesia. +%% +%% This will eventually be structured as a plug-in instead of an extra +%% module in the middle of the server tree.... +%% ---------------------------------------------------------------------------- + +%%---------------------------------------------------------------------------- +%% This module wraps msgs into Ms for internal use, including +%% additional information. Pending acks are also recorded as Ms. Msgs +%% and pending acks are both stored in Mnesia. +%% +%% All queues are durable in this version, and all msgs are treated as +%% persistent. (This will break some clients and some tests for +%% non-durable queues.) +%% ---------------------------------------------------------------------------- + +%% BUG: The rabbit_backing_queue_spec behaviour needs improvement. For +%% example, rabbit_amqqueue_process knows too much about the state of +%% a backing queue, even though this state may now change without its +%% knowledge. Additionally, there are points in the protocol where +%% failures can lose msgs. + +%% TODO: Need to provide better back-pressure when queue is filling up. + +%% BUG: Should not use mnesia:all_keys to count entries. + +%% BUG: p_records do not need a separate seq_id. + +%% TODO: Worry about dropping txn_dict upon failure. + +-behaviour(rabbit_backing_queue). + +%% The S record is the in-RAM AMQP queue state. It contains the names +%% of three Mnesia queues; the next_seq_id and next_out_id (also +%% stored in the N table in Mnesia); and the AMQP transaction dict +%% (which can be dropped on a crash). + +-record(s, % The in-RAM queue state + { q_table, % The Mnesia queue table name + p_table, % The Mnesia pending-ack table name + n_table, % The Mnesia next_(seq_id, out_id) table name + next_seq_id, % The next M's seq_id + next_out_id, % The next M's out id + txn_dict % In-progress txn->tx map + }). + +%% An M record is a wrapper around a msg. It contains a seq_id, +%% assigned when the msg is published; the msg itself; the msg's +%% props, as presented by the client or as transformed by the client; +%% and an is-delivered flag, for reporting. + +-record(m, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg + msg, % The msg itself + props, % The msg properties + is_delivered % Has the msg been delivered? (for reporting) + }). + +%% A TX record is the value stored in the txn_dict. It contains a list +%% of (msg, props) pairs to be published after the AMQP transaction, +%% in reverse order, and a list of seq_ids to ack after the AMQP +%% transaction, in any order. No other write-operations are allowed in +%% AMQP transactions, and the effects of these operations are not +%% visible to the client until after the AMQP transaction commits. + +-record(tx, + { to_pub, % List of (msg, props) pairs to publish + to_ack % List of seq_ids to ack + }). + +%% A Q record is a msg stored in the Q table in Mnesia. It is indexed +%% by the out-id, which orders msgs; and contains the M itself. We +%% push Ms with a new high out_id, and pop the M with the lowest +%% out_id. (We cannot use the seq_id for ordering since msgs may be +%% requeued while keeping the same seq_id.) + +-record(q_record, % Q records in Mnesia + { out_id, % The key: The out_id + m % The value: The M + }). + +%% A P record is a pending-ack stored in the P table in Mnesia. It is +%% indexed by the seq_id, and contains the M itself. It is randomly +%% accssed by seq_id. + +-record(p_record, % P records in Mnesia + { seq_id, % The key: The seq_id + m % The value: The M + }). + +%% An N record holds counters in the single row in the N table in +%% Mnesia. It contains the next_seq_id and next_out_id from the S, so +%% that they can be recovered after a crash. They are updated on every +%% Mnesia transaction that updates them in the in-RAM S. + +-record(n_record, % next_seq_id & next_out_id record in Mnesia + { key, % The key: the atom 'n' + next_seq_id, % The Mnesia next_seq_id + next_out_id % The Mnesia next_out_id + }). + +-include("rabbit.hrl"). + +%%---------------------------------------------------------------------------- + +%% BUG: Restore -ifdef, -endif. + +%% -ifdef(use_specs). + +-type(maybe(T) :: nothing | {just, T}). + +-type(seq_id() :: non_neg_integer()). +-type(ack() :: seq_id()). + +-type(s() :: #s { q_table :: atom(), + p_table :: atom(), + n_table :: atom(), + next_seq_id :: seq_id(), + next_out_id :: non_neg_integer(), + txn_dict :: dict() }). +-type(state() :: s()). + +-type(m() :: #m { msg :: rabbit_types:basic_message(), + seq_id :: seq_id(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). + +-type(tx() :: #tx { to_pub :: [{rabbit_types:basic_message(), + rabbit_types:message_properties()}], + to_ack :: [seq_id()] }). + +-type(q_record() :: #q_record { out_id :: non_neg_integer(), + m :: m() }). + +-type(p_record() :: #p_record { seq_id :: seq_id(), + m :: m() }). + +-type(n_record() :: #n_record { key :: 'n', + next_seq_id :: seq_id(), + next_out_id :: non_neg_integer() }). + +-include("rabbit_backing_queue_spec.hrl"). + +%% -endif. + +%%---------------------------------------------------------------------------- +%% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. + +%%---------------------------------------------------------------------------- +%% start/1 promises that a list of (durable) queue names will be +%% started in the near future. This lets us perform early checking of +%% the consistency of those queues, and initialize other shared +%% resources. It is ignored in this implementation. +%% +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). + +start(_DurableQueues) -> ok. + +%%---------------------------------------------------------------------------- +%% stop/0 tears down all state/resources upon shutdown. It might not +%% be called. It is ignored in this implementation. +%% +%% -spec(stop/0 :: () -> 'ok'). + +stop() -> ok. + +%%---------------------------------------------------------------------------- +%% init/3 creates one backing queue, returning its state. Names are +%% local to the vhost, and must be unique. +%% +%% This function creates Mnesia transactions to run in, and therefore +%% may not be called from inside another Mnesia transaction. +%% +%% -spec(init/3 :: +%% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) +%% -> state()). + +%% BUG: We should allow clustering of the Mnesia tables. + +%% BUG: It's unfortunate that this can't all be done in a single +%% Mnesia transaction! + +init(QueueName, IsDurable, Recover) -> + % rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), + {QTable, PTable, NTable} = tables(QueueName), + case Recover of + false -> _ = mnesia:delete_table(QTable), + _ = mnesia:delete_table(PTable), + _ = mnesia:delete_table(NTable); + true -> ok + end, + create_table(QTable, 'q_record', 'ordered_set', record_info(fields, + q_record)), + create_table(PTable, 'p_record', 'set', record_info(fields, p_record)), + create_table(NTable, 'n_record', 'set', record_info(fields, n_record)), + {atomic, Result} = + mnesia:transaction( + fun () -> + {NextSeqId, NextOutId} = + case mnesia:read(NTable, 'n', 'read') of + [] -> {0, 0}; + [#n_record { next_seq_id = NextSeqId0, + next_out_id = NextOutId0 }] -> + {NextSeqId0, NextOutId0} + end, + delete_nonpersistent_msgs(QTable), + RS = #s { q_table = QTable, + p_table = PTable, + n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId, + txn_dict = dict:new() }, + save(RS), + RS + end), + % rabbit_log:info("init ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% terminate/1 deletes all of a queue's pending acks, prior to +%% shutdown. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(terminate/1 :: (state()) -> state()). + +terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> + % rabbit_log:info("terminate(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction(fun () -> clear_table(PTable), S end), + mnesia:dump_tables([QTable, PTable, NTable]), + % rabbit_log:info("terminate ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and +%% pending acks, prior to shutdown. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(delete_and_terminate/1 :: (state()) -> state()). + +delete_and_terminate(S = #s { q_table = QTable, + p_table = PTable, + n_table = NTable }) -> + % rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction(fun () -> clear_table(QTable), + clear_table(PTable), + S + end), + mnesia:dump_tables([QTable, PTable, NTable]), + % rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% purge/1 deletes all of queue's enqueued msgs, generating pending +%% acks as required, and returning the count of msgs purged. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(S = #s { q_table = QTable }) -> + % rabbit_log:info("purge(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), + clear_table(QTable), + {LQ, S} + end), + % rabbit_log:info("purge ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish/3 publishes a msg. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(publish/3 :: +%% (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +publish(Msg, Props, S) -> + % rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + {atomic, Result} = + mnesia:transaction(fun () -> RS = publish_state(Msg, Props, false, S), + save(RS), + RS + end), + confirm(Msg, Props), + % rabbit_log:info("publish ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish_delivered/4 is called after a msg has been passed straight +%% out to a client because the queue is empty. We update all state +%% (e.g., next_seq_id) as if we had in fact handled the msg. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {ack(), state()}; +%% (false, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {undefined, state()}). + +publish_delivered(false, Msg = #basic_message { guid = Guid }, Props, S) -> + % rabbit_log:info("publish_delivered(false,~n ~p,~n _,~n ~p) ->", [S, Guid]), + Result = {undefined, S}, + confirm(Msg, Props), + % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + Result; +publish_delivered(true, + Msg, + Props, + S = #s { next_seq_id = SeqId, next_out_id = OutId }) -> + % rabbit_log:info("publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + {atomic, Result} = + mnesia:transaction( + fun () -> + add_p((m(Msg, SeqId, Props)) #m { is_delivered = true }, S), + RS = S #s { next_seq_id = SeqId + 1, + next_out_id = OutId + 1 }, + save(RS), + {SeqId, RS} + end), + confirm(Msg, Props), + % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% dropwhile/2 drops msgs from the head of the queue while there are +%% msgs and while the supplied predicate returns true. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia +%% transaction. The supplied Pred is called from inside the +%% transaction, and therefore may not call another function that +%% creates an Mnesia transaction. +%% +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). + +dropwhile(Pred, S) -> + % rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), + {atomic, {_, Result}} = + mnesia:transaction(fun () -> {Atom, RS} = internal_dropwhile(Pred, S), + save(RS), + {Atom, RS} + end), + % rabbit_log:info("dropwhile ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% fetch/2 produces the next msg, if any. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; +%% (false, state()) -> {fetch_result(undefined), state()}). + +fetch(AckRequired, S) -> + % rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), + {atomic, FR} = + mnesia:transaction(fun () -> internal_fetch(AckRequired, S) end), + Result = {FR, S}, + % rabbit_log:info("fetch ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% ack/2 acknowledges msgs named by SeqIds. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(ack/2 :: ([ack()], state()) -> state()). + +ack(SeqIds, S) -> + % rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), + {atomic, Result} = + mnesia:transaction(fun () -> {_, RS} = internal_ack(SeqIds, S), + save(RS), + RS + end), + % rabbit_log:info("ack ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_publish/4 is a publish within an AMQP transaction. It stores the +%% msg and its properties in the to_pub field of the txn, waiting to +%% be committed. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(tx_publish/4 :: +%% (rabbit_types:txn(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +tx_publish(Txn, Msg, Props, S) -> + % rabbit_log:info("tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), + {atomic, Result} = + mnesia:transaction( + fun () -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), + RS = store_tx(Txn, + Tx #tx { to_pub = [{Msg, Props} | Pubs] }, + S), + save(RS), + RS + end), + % rabbit_log:info("tx_publish ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in +%% the acks field of the txn, waiting to be committed. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). + +tx_ack(Txn, SeqIds, S) -> + % rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), + {atomic, Result} = + mnesia:transaction( + fun () -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), + RS = store_tx(Txn, + Tx #tx { + to_ack = lists:append(SeqIds, SeqIds0) }, + S), + save(RS), + RS + end), + % rabbit_log:info("tx_ack ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_rollback/2 aborts an AMQP transaction. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + +tx_rollback(Txn, S) -> + % rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), + {atomic, Result} = + mnesia:transaction(fun () -> + #tx { to_ack = SeqIds } = lookup_tx(Txn, S), + RS = erase_tx(Txn, S), + save(RS), + {SeqIds, RS} + end), + % rabbit_log:info("tx_rollback ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_commit/4 commits an AMQP transaction. The F passed in is called +%% once the msgs have really been commited. This CPS permits the +%% possibility of commit coalescing. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia +%% transaction. However, the supplied F is called outside the +%% transaction. +%% +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), +%% fun (() -> any()), +%% message_properties_transformer(), +%% state()) +%% -> {[ack()], state()}). + +tx_commit(Txn, F, PropsF, S) -> + % rabbit_log:info("tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), + {atomic, Result} = + mnesia:transaction( + fun () -> + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), + RS = + tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S)), + save(RS), + {SeqIds, RS} + end), + F(), + % rabbit_log:info("tx_commit ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% requeue/3 reinserts msgs into the queue that have already been +%% delivered and were pending acknowledgement. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(requeue/3 :: +%% ([ack()], message_properties_transformer(), state()) -> state()). + +requeue(SeqIds, PropsF, S) -> + % rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), + {atomic, Result} = + mnesia:transaction( + fun () -> {_, RS} = + del_ps( + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) + end, + SeqIds, + S), + save(RS), + RS + end), + % rabbit_log:info("requeue ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% len/1 returns the queue length. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(S = #s { q_table = QTable }) -> + % rabbit_log:info("len(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), + % rabbit_log:info("len ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% is_empty/1 returns true iff the queue is empty. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(S = #s { q_table = QTable }) -> + % rabbit_log:info("is_empty(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), + % rabbit_log:info("is_empty ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% set_ram_duration_target informs us that the target is to have no +%% more msgs in RAM than indicated by the duration and the current +%% queue rates. It is ignored in this implementation. +%% +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) +%% -> state()). + +set_ram_duration_target(_, S) -> S. + +%%---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the msgs in RAM represent given the current rates of the +%% queue. It is a dummy in this implementation. +%% +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). + +ram_duration(S) -> {0, S}. + +%%---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns true iff idle_timeout should be called +%% as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires). It always returns false in this +%% implementation. +%% +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +needs_idle_timeout(_) -> false. + +%%---------------------------------------------------------------------------- +%% idle_timeout/1 is called (eventually) after needs_idle_timeout +%% returns true. It is a dummy in this implementation. +%% +%% -spec(idle_timeout/1 :: (state()) -> state()). + +idle_timeout(S) -> S. + +%%---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. It is a dummy in this implementation. +%% +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). + +handle_pre_hibernate(S) -> S. + +%%---------------------------------------------------------------------------- +%% status/1 exists for debugging and operational purposes, to be able +%% to expose state via rabbitmqctl. +%% +%% This function creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(S = #s { q_table = QTable, + p_table = PTable, + next_seq_id = NextSeqId }) -> + % rabbit_log:info("status(~n ~p) ->", [S]), + {atomic, Result} = + mnesia:transaction( + fun () -> LQ = length(mnesia:all_keys(QTable)), + LP = length(mnesia:all_keys(PTable)), + [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] + end), + % rabbit_log:info("status ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% Monadic helper functions for inside transactions. +%% ---------------------------------------------------------------------------- + +-spec create_table(atom(), atom(), atom(), [atom()]) -> ok. + +create_table(Table, RecordName, Type, Attributes) -> + case mnesia:create_table(Table, [{record_name, RecordName}, + {type, Type}, + {attributes, Attributes}, + {ram_copies, [node()]}]) of + {atomic, ok} -> ok; + {aborted, {already_exists, Table}} -> + RecordName = mnesia:table_info(Table, record_name), + Type = mnesia:table_info(Table, type), + Attributes = mnesia:table_info(Table, attributes), + ok + end. + +%% Like mnesia:clear_table, but within an Mnesia transaction. + +%% BUG: The write-set of the transaction may be huge if the table is +%% huge. Then again, this might not bother Mnesia. + +-spec clear_table(atom()) -> ok. + +clear_table(Table) -> + case mnesia:first(Table) of + '$end_of_table' -> ok; + Key -> mnesia:delete(Table, Key, 'write'), + clear_table(Table) + end. + +%% Delete non-persistent msgs after a restart. + +-spec delete_nonpersistent_msgs(atom()) -> ok. + +delete_nonpersistent_msgs(QTable) -> + lists:foreach( + fun (Key) -> + [#q_record { out_id = Key, m = M }] = + mnesia:read(QTable, Key, 'read'), + case M of + #m { msg = #basic_message { is_persistent = true }} -> ok; + _ -> mnesia:delete(QTable, Key, 'write') + end + end, + mnesia:all_keys(QTable)). + +%% internal_fetch/2 fetches the next msg, if any, inside an Mnesia +%% transaction, generating a pending ack as necessary. + +-spec(internal_fetch(true, s()) -> fetch_result(ack()); + (false, s()) -> fetch_result(undefined)). + +internal_fetch(AckRequired, S) -> + case q_pop(S) of + nothing -> empty; + {just, M} -> post_pop(AckRequired, M, S) + end. + +-spec tx_commit_state([rabbit_types:basic_message()], + [seq_id()], + message_properties_transformer(), + s()) -> + s(). + +tx_commit_state(Pubs, SeqIds, PropsF, S) -> + {_, S1} = internal_ack(SeqIds, S), + lists:foldl( + fun ({Msg, Props}, Si) -> + confirm(Msg, Props), + publish_state(Msg, Props, false, Si) + end, + S1, + [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). + +-spec publish_state(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + s()) -> + s(). + +publish_state(Msg, + Props, + IsDelivered, + S = #s { q_table = QTable, + next_seq_id = SeqId, + next_out_id = OutId }) -> + M = (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, + mnesia:write(QTable, #q_record { out_id = OutId, m = M }, 'write'), + S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. + +-spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). + +internal_ack(SeqIds, S) -> del_ps(fun (_, Si) -> Si end, SeqIds, S). + +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), s()) + -> {empty | ok, s()}). + +internal_dropwhile(Pred, S) -> + case q_peek(S) of + nothing -> {empty, S}; + {just, M = #m { props = Props }} -> + case Pred(Props) of + true -> _ = q_pop(S), + _ = post_pop(false, M, S), + internal_dropwhile(Pred, S); + false -> {ok, S} + end + end. + +%% q_pop pops a msg, if any, from the Q table in Mnesia. + +-spec q_pop(s()) -> maybe(m()). + +q_pop(#s { q_table = QTable }) -> + case mnesia:first(QTable) of + '$end_of_table' -> nothing; + OutId -> [#q_record { out_id = OutId, m = M }] = + mnesia:read(QTable, OutId, 'read'), + mnesia:delete(QTable, OutId, 'write'), + {just, M} + end. + +%% q_peek returns the first msg, if any, from the Q table in +%% Mnesia. + +-spec q_peek(s()) -> maybe(m()). + +q_peek(#s { q_table = QTable }) -> + case mnesia:first(QTable) of + '$end_of_table' -> nothing; + OutId -> [#q_record { out_id = OutId, m = M }] = + mnesia:read(QTable, OutId, 'read'), + {just, M} + end. + +%% post_pop operates after q_pop, calling add_p if necessary. + +-spec(post_pop(true, m(), s()) -> fetch_result(ack()); + (false, m(), s()) -> fetch_result(undefined)). + +post_pop(true, + M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + S = #s { q_table = QTable }) -> + LQ = length(mnesia:all_keys(QTable)), + add_p(M #m { is_delivered = true }, S), + {Msg, IsDelivered, SeqId, LQ}; +post_pop(false, + #m { msg = Msg, is_delivered = IsDelivered }, + #s { q_table = QTable }) -> + LQ = length(mnesia:all_keys(QTable)), + {Msg, IsDelivered, undefined, LQ}. + +%% add_p adds a pending ack to the P table in Mnesia. + +-spec add_p(m(), s()) -> ok. + +add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> + mnesia:write(PTable, #p_record { seq_id = SeqId, m = M }, 'write'), + ok. + +%% del_ps deletes some number of pending acks from the P table in +%% Mnesia, applying a (Mnesia transactional) function F after each msg +%% is deleted, and returning their guids. + +-spec del_ps(fun (([rabbit_guid:guid()], s()) -> s()), + [rabbit_guid:guid()], + s()) -> + {[rabbit_guid:guid()], s()}. + +del_ps(F, SeqIds, S = #s { p_table = PTable }) -> + {AllGuids, Sn} = + lists:foldl( + fun (SeqId, {Acc, Si}) -> + [#p_record { + m = M = #m { msg = #basic_message { guid = Guid }} }] = + mnesia:read(PTable, SeqId, 'read'), + mnesia:delete(PTable, SeqId, 'write'), + {[Guid | Acc], F(M, Si)} + end, + {[], S}, + SeqIds), + {lists:reverse(AllGuids), Sn}. + +%% save copies the volatile part of the state (next_seq_id and +%% next_out_id) to Mnesia. + +-spec save(s()) -> ok. + +save(#s { n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId }) -> + ok = mnesia:write(NTable, + #n_record { key = 'n', + next_seq_id = NextSeqId, + next_out_id = NextOutId }, + 'write'). + +%%---------------------------------------------------------------------------- +%% Pure helper functions. +%% ---------------------------------------------------------------------------- + +%% Convert a queue name (a record) into an Mnesia table name (an atom). + +%% TODO: Import correct argument type. + +%% BUG: Mnesia has undocumented restrictions on table names. Names +%% with slashes fail some operations, so we replace replace slashes +%% with the string SLASH. We should extend this as necessary, and +%% perhaps make it a little prettier. + +-spec tables({resource, binary(), queue, binary()}) -> + {atom(), atom(), atom()}. + +tables({resource, VHost, queue, Name}) -> + VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), + Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), + Str = lists:flatten(io_lib:format("~p ~p", [VHost2, Name2])), + {list_to_atom(lists:append("q: ", Str)), + list_to_atom(lists:append("p: ", Str)), + list_to_atom(lists:append("n: ", Str))}. + +-spec m(rabbit_types:basic_message(), + seq_id(), + rabbit_types:message_properties()) -> + m(). + +m(Msg, SeqId, Props) -> + #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. + +-spec lookup_tx(rabbit_types:txn(), s()) -> tx(). + +lookup_tx(Txn, #s { txn_dict = TxnDict }) -> + case dict:find(Txn, TxnDict) of + error -> #tx { to_pub = [], to_ack = [] }; + {ok, Tx} -> Tx + end. + +-spec store_tx(rabbit_types:txn(), tx(), s()) -> s(). + +store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. + +-spec erase_tx(rabbit_types:txn(), s()) -> s(). + +erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:erase(Txn, TxnDict) }. + +%%---------------------------------------------------------------------------- +%% Internal plumbing for confirms (aka publisher acks) +%%---------------------------------------------------------------------------- + +-spec confirm(rabbit_types:basic_message(), rabbit_types:message_properties()) + -> ok. + +confirm(_, #message_properties { needs_confirming = false }) -> ok; +confirm(#basic_message { guid = Guid }, + #message_properties { needs_confirming = true }) -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + self(), fun (S) -> {[Guid], S} end), + ok. diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 9e0bcc01..7676f381 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -16,267 +16,624 @@ -module(rabbit_ram_queue). --export([init/3, terminate/1, delete_and_terminate/1, - purge/1, publish/3, publish_delivered/4, fetch/2, ack/2, - tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, - requeue/3, len/1, is_empty/1, dropwhile/2, - set_ram_duration_target/2, ram_duration/1, - needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, - status/1]). +-export( + [start/1, stop/0, init/3, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, fetch/2, ack/2, tx_publish/4, tx_ack/3, + tx_rollback/2, tx_commit/4, requeue/3, len/1, is_empty/1, dropwhile/2, + set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, + idle_timeout/1, handle_pre_hibernate/1, status/1]). --export([start/1, stop/0]). +%%---------------------------------------------------------------------------- +%% This is a simple implementation of the rabbit_backing_queue +%% behavior, with all msgs in RAM. +%% +%% This will eventually be structured as a plug-in instead of an extra +%% module in the middle of the server tree.... +%% ---------------------------------------------------------------------------- + +%%---------------------------------------------------------------------------- +%% This module wraps msgs into Ms for internal use, including +%% additional information. Pending acks are also recorded as Ms. Msgs +%% and pending acks are both stored in RAM. +%% +%% All queues are durable in this version, and all msgs are treated as +%% persistent. (This will break some clients and some tests for +%% non-durable queues.) +%% ---------------------------------------------------------------------------- + +%% TODO: Need to provide better back-pressure when queue is filling up. -behaviour(rabbit_backing_queue). --record(s, - { q, - next_seq_id, - pending_ack, - pending_ack_index, - unconfirmed +%% The S record is the in-RAM AMQP queue state. It contains the queue +%% of Ms; the next_seq_id; and the AMQP transaction dict. + +-record(s, % The in-RAM queue state + { q, % The queue of Ms + p, % The seq_id->M map of pending acks + next_seq_id, % The next M's seq_id + txn_dict % In-progress txn->tx map }). --record(m, - { seq_id, - msg, - is_delivered, - props +%% An M record is a wrapper around a msg. It contains a seq_id, +%% assigned when the msg is published; the msg itself; the msg's +%% props, as presented by the client or as transformed by the client; +%% and an is-delivered flag, for reporting. + +-record(m, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg + msg, % The msg itself + props, % The msg properties + is_delivered % Has the msg been delivered? (for reporting) }). --record(tx, { pending_messages, pending_acks }). +%% A TX record is the value stored in the txn_dict. It contains a list +%% of (msg, props) pairs to be published after the AMQP transaction, +%% in reverse order, and a list of seq_ids to ack after the AMQP +%% transaction, in any order. No other write-operations are allowed in +%% AMQP transactions, and the effects of these operations are not +%% visible to the client until after the AMQP transaction commits. + +-record(tx, + { to_pub, % List of (msg, props) pairs to publish + to_ack % List of seq_ids to ack + }). -include("rabbit.hrl"). %%---------------------------------------------------------------------------- --ifdef(use_specs). +%% BUG: Restore -ifdef, -endif. + +%% -ifdef(use_specs). + +-type(maybe(T) :: nothing | {just, T}). -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id()). --type(s() :: #s { - q :: queue(), - next_seq_id :: seq_id(), - pending_ack :: dict(), - unconfirmed :: gb_set() }). +-type(s() :: #s { q :: queue(), + p :: dict(), + next_seq_id :: seq_id(), + txn_dict :: dict() }). -type(state() :: s()). +-type(m() :: #m { seq_id :: seq_id(), + msg :: rabbit_types:basic_message(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). + +-type(tx() :: #tx { to_pub :: [{rabbit_types:basic_message(), + rabbit_types:message_properties()}], + to_ack :: [seq_id()] }). + -include("rabbit_backing_queue_spec.hrl"). --endif. +%% -endif. %%---------------------------------------------------------------------------- %% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. + %%---------------------------------------------------------------------------- +%% start/1 promises that a list of (durable) queue names will be +%% started in the near future. This lets us perform early checking of +%% the consistency of those queues, and initialize other shared +%% resources. It is ignored in this implementation. +%% +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). -start(_) -> ok. +start(_DurableQueues) -> ok. + +%%---------------------------------------------------------------------------- +%% stop/0 tears down all state/resources upon shutdown. It might not +%% be called. It is ignored in this implementation. +%% +%% -spec(stop/0 :: () -> 'ok'). stop() -> ok. -init(_, _, _) -> - #s { - q = queue:new(), - next_seq_id = 0, - pending_ack = dict:new(), - unconfirmed = gb_sets:new() }. - -terminate(S) -> remove_pending_ack(S). - -delete_and_terminate(S) -> {_PurgeCount, S1} = purge(S), - remove_pending_ack(S1). - -purge(S = #s { q = Q }) -> {queue:len(Q), S #s { q = queue:new() }}. - -publish(Msg, Props, S) -> publish5(Msg, Props, false, S). - -publish_delivered(false, - #basic_message { guid = Guid }, - _Props, - S) -> - blind_confirm(self(), gb_sets:singleton(Guid)), - {undefined, S}; -publish_delivered(true, - Msg = #basic_message { guid = Guid }, - Props = #message_properties { - needs_confirming = NeedsConfirming }, - S = #s { next_seq_id = SeqId, unconfirmed = UC }) -> - S1 = record_pending_ack((m(SeqId, Msg, Props)) - #m { is_delivered = true }, S), - UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), - {SeqId, S1 #s { next_seq_id = SeqId + 1, unconfirmed = UC1 }}. - -dropwhile(Pred, S) -> {_OkOrEmpty, S1} = dropwhile1(Pred, S), - S1. - -dropwhile1(Pred, S) -> - internal_queue_out( - fun(M = #m { props = Props }, S1 = #s { q = Q }) -> - case Pred(Props) of - true -> {_, S2} = internal_fetch(false, M, S1), - dropwhile1(Pred, S2); - false -> {ok, S1 #s {q = queue:in_r(M, Q) }} - end - end, - S). +%%---------------------------------------------------------------------------- +%% init/3 creates one backing queue, returning its state. Names are +%% local to the vhost, and must be unique. +%% +%% This function should be called only from outside this module. +%% +%% -spec(init/3 :: +%% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) +%% -> state()). + +init(QueueName, IsDurable, Recover) -> + % rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), + Result = #s { q = queue:new(), + p = dict:new(), + next_seq_id = 0, + txn_dict = dict:new() }, + % rabbit_log:info("init ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% terminate/1 deletes all of a queue's pending acks, prior to +%% shutdown. +%% +%% This function should be called only from outside this module. +%% +%% -spec(terminate/1 :: (state()) -> state()). + +terminate(S) -> + % rabbit_log:info("terminate(~n ~p) ->", [S]), + Result = S #s { p = dict:new() }, + % rabbit_log:info("terminate ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and +%% pending acks, prior to shutdown. +%% +%% This function should be called only from outside this module. +%% +%% -spec(delete_and_terminate/1 :: (state()) -> state()). + +delete_and_terminate(S) -> + % rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), + Result = S #s { q = queue:new(), p = dict:new() }, + % rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% purge/1 deletes all of queue's enqueued msgs, returning the count +%% of msgs purged. +%% +%% This function should be called only from outside this module. +%% +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(S = #s { q = Q }) -> + % rabbit_log:info("purge(~n ~p) ->", [S]), + Result = {queue:len(Q), S #s { q = queue:new() }}, + % rabbit_log:info("purge ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish/3 publishes a msg. +%% +%% This function should be called only from outside this module. +%% +%% -spec(publish/3 :: +%% (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +publish(Msg, Props, S) -> + % rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + confirm(Msg, Props), + Result = publish_state(Msg, Props, false, S), + % rabbit_log:info("publish ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% publish_delivered/4 is called after a msg has been passed straight +%% out to a client because the queue is empty. We update all state +%% (e.g., next_seq_id) as if we had in fact handled the msg. +%% +%% This function should be called only from outside this module. +%% +%% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {ack(), state()}; +%% (false, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {undefined, state()}). + +publish_delivered(false, Msg = #basic_message { guid = Guid }, Props, S) -> + % rabbit_log:info("publish_delivered(false,~n ~p,~n _,~n ~p) ->", [Guid, S]), + confirm(Msg, Props), + Result = {undefined, S}, + % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + Result; +publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> + % rabbit_log:info("publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + confirm(Msg, Props), + Result = {SeqId, + (add_p((m(Msg, SeqId, Props)) #m { is_delivered = true }, S)) + #s { next_seq_id = SeqId + 1 }}, + % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% dropwhile/2 drops msgs from the head of the queue while there are +%% msgs and while the supplied predicate returns true. +%% +%% This function should be called only from outside this module. +%% +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). + +dropwhile(Pred, S) -> + % rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), + {_, Result} = internal_dropwhile(Pred, S), + % rabbit_log:info("dropwhile ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% fetch/2 produces the next msg, if any. +%% +%% This function should be called only from outside this module. +%% +%% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; +%% (false, state()) -> {fetch_result(undefined), state()}). fetch(AckRequired, S) -> - internal_queue_out( - fun(M, S1) -> internal_fetch(AckRequired, M, S1) end, S). + % rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), + Result = internal_fetch(AckRequired, S), + % rabbit_log:info("fetch ->~n ~p", [Result]), + Result. -internal_queue_out(F, S = #s { q = Q }) -> - case queue:out(Q) of - {empty, _Q} -> {empty, S}; - {{value, M}, Qa} -> F(M, S #s { q = Qa }) - end. +%%---------------------------------------------------------------------------- +%% ack/2 acknowledges msgs named by SeqIds. +%% +%% This function should be called only from outside this module. +%% +%% -spec(ack/2 :: ([ack()], state()) -> state()). -internal_fetch(AckRequired, - M = #m { seq_id = SeqId, - msg = Msg, - is_delivered = IsDelivered }, - S = #s { q = Q }) -> - {AckTag, S1} = case AckRequired of - true -> SN = record_pending_ack( - M #m { is_delivered = true }, - S), - {SeqId, SN}; - false -> {undefined, S} - end, - {{Msg, IsDelivered, AckTag, queue:len(Q)}, S1}. - -ack(AckTags, S) -> ack(fun (_, S0) -> S0 end, AckTags, S). +ack(SeqIds, S) -> + % rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), + {_, Result} = internal_ack(SeqIds, S), + % rabbit_log:info("ack ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_publish/4 is a publish within an AMQP transaction. It stores the +%% msg and its properties in the to_pub field of the txn, waiting to +%% be committed. +%% +%% This function should be called only from outside this module. +%% +%% -spec(tx_publish/4 :: +%% (rabbit_types:txn(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). tx_publish(Txn, Msg, Props, S) -> - Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_messages = [{Msg, Props} | Pubs] }), - S. + % rabbit_log:info("tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), + Result = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), + % rabbit_log:info("tx_publish ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in +%% the acks field of the txn, waiting to be committed. +%% +%% This function should be called only from outside this module. +%% +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). -tx_ack(Txn, AckTags, S) -> - Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), - S. +tx_ack(Txn, SeqIds, S) -> + % rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), + Result = store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, S), + % rabbit_log:info("tx_ack ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_rollback/2 aborts an AMQP transaction. +%% +%% This function should be called only from outside this module. +%% +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, S) -> - #tx { pending_acks = AckTags } = lookup_tx(Txn), - erase_tx(Txn), - {lists:append(AckTags), S}. + % rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), + #tx { to_ack = SeqIds } = lookup_tx(Txn, S), + Result = {SeqIds, erase_tx(Txn, S)}, + % rabbit_log:info("tx_rollback ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% tx_commit/4 commits an AMQP transaction. The F passed in is called +%% once the msgs have really been commited. This CPS permits the +%% possibility of commit coalescing. +%% +%% This function should be called only from outside this module. +%% +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), +%% fun (() -> any()), +%% message_properties_transformer(), +%% state()) +%% -> {[ack()], state()}). tx_commit(Txn, F, PropsF, S) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), - erase_tx(Txn), - AckTags1 = lists:append(AckTags), - {AckTags1, tx_commit_post_msg_store(Pubs, AckTags1, F, PropsF, S)}. - -requeue(AckTags, PropsF, S) -> - PropsF1 = fun (Props) -> - (PropsF(Props)) #message_properties { - needs_confirming = false } - end, - ack(fun (#m { msg = Msg, props = Props }, S1) -> - publish5(Msg, PropsF1(Props), true, S1) - end, - AckTags, - S). - -len(#s { q = Q }) -> queue:len(Q). - -is_empty(#s { q = Q }) -> queue:is_empty(Q). + % rabbit_log:info("tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), + Result = {SeqIds, tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S))}, + F(), + % rabbit_log:info("tx_commit ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% requeue/3 reinserts msgs into the queue that have already been +%% delivered and were pending acknowledgement. +%% +%% This function should be called only from outside this module. +%% +%% -spec(requeue/3 :: +%% ([ack()], message_properties_transformer(), state()) -> state()). + +requeue(SeqIds, PropsF, S) -> + % rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), + {_, Result} = del_ps( + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) + end, + SeqIds, + S), + % rabbit_log:info("requeue ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% len/1 returns the queue length. +%% +%% This function should be called only from outside this module. +%% +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(S = #s { q = Q }) -> + % rabbit_log:info("len(~n ~p) ->", [S]), + Result = queue:len(Q), + % rabbit_log:info("len ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% is_empty/1 returns true iff the queue is empty. +%% +%% This function should be called only from outside this module. +%% +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(S = #s { q = Q }) -> + % rabbit_log:info("is_empty(~n ~p) ->", [S]), + Result = queue:is_empty(Q), + % rabbit_log:info("is_empty ->~n ~p", [Result]), + Result. + +%%---------------------------------------------------------------------------- +%% set_ram_duration_target informs us that the target is to have no +%% more msgs in RAM than indicated by the duration and the current +%% queue rates. It is ignored in this implementation. +%% +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) +%% -> state()). set_ram_duration_target(_, S) -> S. +%%---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the msgs in RAM represent given the current rates of the +%% queue. It is a dummy in this implementation. +%% +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). + ram_duration(S) -> {0, S}. +%%---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns true iff idle_timeout should be called +%% as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires). It always returns false in this +%% implementation. +%% +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + needs_idle_timeout(_) -> false. +%%---------------------------------------------------------------------------- +%% idle_timeout/1 is called (eventually) after needs_idle_timeout +%% returns true. It is a dummy in this implementation. +%% +%% -spec(idle_timeout/1 :: (state()) -> state()). + idle_timeout(S) -> S. -handle_pre_hibernate(S) -> S. +%%---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. It is a dummy in this implementation. +%% +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -status(#s { q = Q, pending_ack = PA, next_seq_id = NextSeqId }) -> - [ {q , queue:len(Q)}, - {len , queue:len(Q)}, - {pending_acks , dict:size(PA)}, - {next_seq_id , NextSeqId} ]. +handle_pre_hibernate(S) -> S. %%---------------------------------------------------------------------------- -%% Minor helpers +%% status/1 exists for debugging and operational purposes, to be able +%% to expose state via rabbitmqctl. +%% +%% This function should be called only from outside this module. +%% +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(S = #s { q = Q, p = P, next_seq_id = NextSeqId }) -> + % rabbit_log:info("status(~n ~p) ->", [S]), + Result = + [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, dict:size(P)}], + % rabbit_log:info("status ->~n ~p", [Result]), + Result. + %%---------------------------------------------------------------------------- +%% Helper functions. +%% ---------------------------------------------------------------------------- -gb_sets_maybe_insert(false, _Val, Set) -> Set; -gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). +%% internal_fetch/2 fetches the next msg, if any, generating a pending +%% ack as necessary. -m(SeqId, Msg, Props) -> #m { seq_id = SeqId, - msg = Msg, - is_delivered = false, - props = Props }. +-spec(internal_fetch(true, s()) -> {fetch_result(ack()), s()}; + (false, s()) -> {fetch_result(undefined), s()}). -lookup_tx(Txn) -> case get({txn, Txn}) of - undefined -> #tx { pending_messages = [], - pending_acks = [] }; - V -> V - end. +internal_fetch(AckRequired, S) -> + case q_pop(S) of + {nothing, _} -> {empty, S}; + {{just, M}, S1} -> post_pop(AckRequired, M, S1) + end. -store_tx(Txn, Tx) -> put({txn, Txn}, Tx). +-spec tx_commit_state([rabbit_types:basic_message()], + [seq_id()], + message_properties_transformer(), + s()) -> + s(). -erase_tx(Txn) -> erase({txn, Txn}). +tx_commit_state(Pubs, SeqIds, PropsF, S) -> + {_, S1} = internal_ack(SeqIds, S), + lists:foldl( + fun ({Msg, Props}, Si) -> + confirm(Msg, Props), + publish_state(Msg, Props, false, Si) + end, + S1, + [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). + +-spec publish_state(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + s()) -> + s(). + +publish_state(Msg, + Props, + IsDelivered, + S = #s { q = Q, next_seq_id = SeqId }) -> + S #s { q = queue:in( + (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), + next_seq_id = SeqId + 1 }. + +-spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). + +internal_ack(SeqIds, S) -> del_ps(fun (_, Si) -> Si end, SeqIds, S). + +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), s()) + -> {empty | ok, s()}). + +internal_dropwhile(Pred, S) -> + case q_peek(S) of + nothing -> {empty, S}; + {just, M = #m { props = Props }} -> + case Pred(Props) of + true -> {_, S1} = q_pop(S), + {_, S2} = post_pop(false, M, S1), + internal_dropwhile(Pred, S2); + false -> {ok, S} + end + end. -%%---------------------------------------------------------------------------- -%% Internal major helpers for Public API -%%---------------------------------------------------------------------------- +%% q_pop pops a msg, if any, from the queue. -tx_commit_post_msg_store(Pubs, AckTags, F, PropsF, S) -> - Pubs2 = [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)], - S1 = lists:foldl( - fun ({Msg, Props}, S2) -> publish5(Msg, Props, false, S2) end, - ack(AckTags, S), - Pubs2), - F(), - S1. +-spec q_pop(s()) -> {maybe(m()), s()}. -%%---------------------------------------------------------------------------- -%% Internal gubbins for publishing -%%---------------------------------------------------------------------------- +q_pop(S = #s { q = Q }) -> + case queue:out(Q) of + {empty, _} -> {nothing, S}; + {{value, M}, Q1} -> {{just, M}, S #s { q = Q1 }} + end. -publish5(Msg = #basic_message { guid = Guid }, - Props = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, - S = #s { q = Q, next_seq_id = SeqId, unconfirmed = UC }) -> - S1 = S #s { q = queue:in((m(SeqId, Msg, Props)) - #m { is_delivered = IsDelivered }, - Q) }, - UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), - S1 #s { next_seq_id = SeqId + 1, unconfirmed = UC1 }. +%% q_peek returns the first msg, if any, from the queue. + +-spec q_peek(s()) -> maybe(m()). + +q_peek(#s { q = Q }) -> + case queue:peek(Q) of + empty -> nothing; + {value, M} -> {just, M} + end. + +%% post_pop operates after q_pop, calling add_p if necessary. + +-spec(post_pop(true, m(), s()) -> {fetch_result(ack()), s()}; + (false, m(), s()) -> {fetch_result(undefined), s()}). + +post_pop(true, + M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + S = #s { q = Q }) -> + {{Msg, IsDelivered, SeqId, queue:len(Q)}, + add_p(M #m { is_delivered = true }, S)}; +post_pop(false, + #m { msg = Msg, is_delivered = IsDelivered }, + S = #s { q = Q }) -> + {{Msg, IsDelivered, undefined, queue:len(Q)}, S}. + +%% add_p adds a pending ack to the P dict. + +-spec add_p(m(), s()) -> s(). + +add_p(M = #m { seq_id = SeqId }, S = #s { p = P }) -> + S #s { p = dict:store(SeqId, M, P) }. + +%% del_ps deletes some number of pending acks from the P dict, +%% applying a function F after each msg is deleted, and returning +%% their guids. + +-spec del_ps(fun (([rabbit_guid:guid()], s()) -> s()), + [rabbit_guid:guid()], + s()) -> + {[rabbit_guid:guid()], s()}. + +del_ps(F, SeqIds, S = #s { p = P }) -> + {AllGuids, Sn} = + lists:foldl( + fun (SeqId, {Acc, Si}) -> + {ok, M = #m { msg = #basic_message { guid = Guid } }} = + dict:find(SeqId, P), + {[Guid | Acc], F(M, Si #s { p = dict:erase(SeqId, P) })} + end, + {[], S}, + SeqIds), + {lists:reverse(AllGuids), Sn}. %%---------------------------------------------------------------------------- -%% Internal gubbins for acks -%%---------------------------------------------------------------------------- +%% Pure helper functions. +%% ---------------------------------------------------------------------------- -record_pending_ack(#m { seq_id = SeqId } = M, S = #s { pending_ack = PA }) -> - AckEntry = M, - PA1 = dict:store(SeqId, AckEntry, PA), - S #s { pending_ack = PA1 }. +-spec m(rabbit_types:basic_message(), + seq_id(), + rabbit_types:message_properties()) -> + m(). -remove_pending_ack(S) -> S #s { pending_ack = dict:new() }. +m(Msg, SeqId, Props) -> + #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. -ack(F, AckTags, S) -> - lists:foldl( - fun (SeqId, S2 = #s { pending_ack = PA }) -> - AckEntry = dict:fetch(SeqId, PA), - F(AckEntry, S2 #s { pending_ack = dict:erase(SeqId, PA)}) - end, - S, - AckTags). +-spec lookup_tx(rabbit_types:txn(), s()) -> tx(). + +lookup_tx(Txn, #s { txn_dict = TxnDict }) -> + case dict:find(Txn, TxnDict) of + error -> #tx { to_pub = [], to_ack = [] }; + {ok, Tx} -> Tx + end. + +-spec store_tx(rabbit_types:txn(), tx(), s()) -> s(). + +store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. + +-spec erase_tx(rabbit_types:txn(), s()) -> s(). + +erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> + S #s { txn_dict = dict:erase(Txn, TxnDict) }. %%---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- -remove_confirms(GuidSet, S = #s { unconfirmed = UC }) -> - S #s { unconfirmed = gb_sets:difference(UC, GuidSet) }. +-spec confirm(rabbit_types:basic_message(), rabbit_types:message_properties()) + -> ok. -msgs_confirmed(GuidSet, S) -> - {gb_sets:to_list(GuidSet), remove_confirms(GuidSet, S)}. - -blind_confirm(QPid, GuidSet) -> +confirm(_, #message_properties { needs_confirming = false }) -> ok; +confirm(#basic_message { guid = Guid }, + #message_properties { needs_confirming = true }) -> rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (S) -> msgs_confirmed(GuidSet, S) end). - + self(), fun (S) -> {[Guid], S} end), + ok. -- cgit v1.2.1 From a81f35dbb21afce8a84331fe32916598cb9f40db Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 16 Feb 2011 14:47:14 -0800 Subject: Passes all tests but one timing-dependent functional test, which passes only intermittently. --- Makefile | 4 +- src/rabbit_mnesia_queue.erl | 155 ++++++++++++++++++++++++-------------------- src/rabbit_ram_queue.erl | 123 ++++++++++++++++++----------------- 3 files changed, 150 insertions(+), 132 deletions(-) diff --git a/Makefile b/Makefile index 301e83e4..e0ccf732 100644 --- a/Makefile +++ b/Makefile @@ -110,9 +110,9 @@ $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_c dialyze: $(BEAM_TARGETS) $(BASIC_PLT) dialyzer --plt $(BASIC_PLT) --no_native \ - -Wunmatched_returns -Werror_handling -Wbehaviours \ - -Wunderspecs \ -Wrace_conditions $(BEAM_TARGETS) +# -Wunmatched_returns -Werror_handling -Wbehaviours \ +# -Wunderspecs \ # rabbit.plt is used by rabbitmq-erlang-client's dialyze make target create-plt: $(RABBIT_PLT) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index ef53035e..387868eb 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -197,8 +197,8 @@ stop() -> ok. %% init/3 creates one backing queue, returning its state. Names are %% local to the vhost, and must be unique. %% -%% This function creates Mnesia transactions to run in, and therefore -%% may not be called from inside another Mnesia transaction. +%% init/3 creates Mnesia transactions to run in, and therefore may not +%% be called from inside another Mnesia transaction. %% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) @@ -225,6 +225,12 @@ init(QueueName, IsDurable, Recover) -> {atomic, Result} = mnesia:transaction( fun () -> + case IsDurable of + false -> clear_table(QTable), + clear_table(PTable), + clear_table(NTable); + true -> delete_nonpersistent_msgs(QTable) + end, {NextSeqId, NextOutId} = case mnesia:read(NTable, 'n', 'read') of [] -> {0, 0}; @@ -232,7 +238,6 @@ init(QueueName, IsDurable, Recover) -> next_out_id = NextOutId0 }] -> {NextSeqId0, NextOutId0} end, - delete_nonpersistent_msgs(QTable), RS = #s { q_table = QTable, p_table = PTable, n_table = NTable, @@ -243,14 +248,15 @@ init(QueueName, IsDurable, Recover) -> RS end), % rabbit_log:info("init ->~n ~p", [Result]), + callback([]), Result. %%---------------------------------------------------------------------------- %% terminate/1 deletes all of a queue's pending acks, prior to %% shutdown. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% terminate/1 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. %% %% -spec(terminate/1 :: (state()) -> state()). @@ -266,7 +272,7 @@ terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> %% delete_and_terminate/1 deletes all of a queue's enqueued msgs and %% pending acks, prior to shutdown. %% -%% This function creates an Mnesia transaction to run in, and +%% delete_and_terminate/1 creates an Mnesia transaction to run in, and %% therefore may not be called from inside another Mnesia transaction. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). @@ -288,8 +294,8 @@ delete_and_terminate(S = #s { q_table = QTable, %% purge/1 deletes all of queue's enqueued msgs, generating pending %% acks as required, and returning the count of msgs purged. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% purge/1 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). @@ -306,8 +312,8 @@ purge(S = #s { q_table = QTable }) -> %%---------------------------------------------------------------------------- %% publish/3 publishes a msg. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% publish/3 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. %% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), @@ -322,8 +328,8 @@ publish(Msg, Props, S) -> save(RS), RS end), - confirm(Msg, Props), % rabbit_log:info("publish ->~n ~p", [Result]), + callback([{Msg, Props}]), Result. %%---------------------------------------------------------------------------- @@ -331,7 +337,7 @@ publish(Msg, Props, S) -> %% out to a client because the queue is empty. We update all state %% (e.g., next_seq_id) as if we had in fact handled the msg. %% -%% This function creates an Mnesia transaction to run in, and +%% publish_delivered/4 creates an Mnesia transaction to run in, and %% therefore may not be called from inside another Mnesia transaction. %% %% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), @@ -341,11 +347,11 @@ publish(Msg, Props, S) -> %% rabbit_types:message_properties(), state()) %% -> {undefined, state()}). -publish_delivered(false, Msg = #basic_message { guid = Guid }, Props, S) -> - % rabbit_log:info("publish_delivered(false,~n ~p,~n _,~n ~p) ->", [S, Guid]), +publish_delivered(false, Msg, Props, S) -> + % rabbit_log:info("publish_delivered(false,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), Result = {undefined, S}, - confirm(Msg, Props), % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + callback([{Msg, Props}]), Result; publish_delivered(true, Msg, @@ -361,19 +367,22 @@ publish_delivered(true, save(RS), {SeqId, RS} end), - confirm(Msg, Props), % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + callback([{Msg, Props}]), Result. %%---------------------------------------------------------------------------- %% dropwhile/2 drops msgs from the head of the queue while there are %% msgs and while the supplied predicate returns true. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia -%% transaction. The supplied Pred is called from inside the -%% transaction, and therefore may not call another function that -%% creates an Mnesia transaction. +%% dropwhile/2 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. The +%% supplied Pred is called from inside the transaction, and therefore +%% may not call another function that creates an Mnesia transaction. +%% +%% dropwhile/2 cannot call callback/1 because callback/1 ultimately +%% calls rabbit_amqqueue_process:maybe_run_queue_via_backing_queue/2, +%% which calls dropwhile/2. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -392,8 +401,8 @@ dropwhile(Pred, S) -> %%---------------------------------------------------------------------------- %% fetch/2 produces the next msg, if any. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% fetch/2 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. %% %% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; %% (false, state()) -> {fetch_result(undefined), state()}). @@ -404,24 +413,26 @@ fetch(AckRequired, S) -> mnesia:transaction(fun () -> internal_fetch(AckRequired, S) end), Result = {FR, S}, % rabbit_log:info("fetch ->~n ~p", [Result]), + callback([]), Result. %%---------------------------------------------------------------------------- %% ack/2 acknowledges msgs named by SeqIds. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% ack/2 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. %% %% -spec(ack/2 :: ([ack()], state()) -> state()). ack(SeqIds, S) -> % rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), {atomic, Result} = - mnesia:transaction(fun () -> {_, RS} = internal_ack(SeqIds, S), + mnesia:transaction(fun () -> RS = internal_ack(SeqIds, S), save(RS), RS end), % rabbit_log:info("ack ->~n ~p", [Result]), + callback([]), Result. %%---------------------------------------------------------------------------- @@ -429,8 +440,8 @@ ack(SeqIds, S) -> %% msg and its properties in the to_pub field of the txn, waiting to %% be committed. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% tx_publish/4 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. %% %% -spec(tx_publish/4 :: %% (rabbit_types:txn(), @@ -457,8 +468,8 @@ tx_publish(Txn, Msg, Props, S) -> %% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in %% the acks field of the txn, waiting to be committed. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% tx_ack/3 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. %% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). @@ -480,7 +491,7 @@ tx_ack(Txn, SeqIds, S) -> %%---------------------------------------------------------------------------- %% tx_rollback/2 aborts an AMQP transaction. %% -%% This function creates an Mnesia transaction to run in, and +%% tx_rollback/2 creates an Mnesia transaction to run in, and %% therefore may not be called from inside another Mnesia transaction. %% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). @@ -502,10 +513,9 @@ tx_rollback(Txn, S) -> %% once the msgs have really been commited. This CPS permits the %% possibility of commit coalescing. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia -%% transaction. However, the supplied F is called outside the -%% transaction. +%% tx_commit/4 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. However, +%% the supplied F is called outside the transaction. %% %% -spec(tx_commit/4 :: %% (rabbit_types:txn(), @@ -516,25 +526,26 @@ tx_rollback(Txn, S) -> tx_commit(Txn, F, PropsF, S) -> % rabbit_log:info("tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), - {atomic, Result} = + {atomic, {Result, Pubs}} = mnesia:transaction( fun () -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), RS = tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S)), save(RS), - {SeqIds, RS} + {{SeqIds, RS}, Pubs} end), F(), % rabbit_log:info("tx_commit ->~n ~p", [Result]), + callback(Pubs), Result. %%---------------------------------------------------------------------------- %% requeue/3 reinserts msgs into the queue that have already been %% delivered and were pending acknowledgement. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% requeue/3 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. %% %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). @@ -543,7 +554,7 @@ requeue(SeqIds, PropsF, S) -> % rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), {atomic, Result} = mnesia:transaction( - fun () -> {_, RS} = + fun () -> RS = del_ps( fun (#m { msg = Msg, props = Props }, Si) -> publish_state(Msg, PropsF(Props), true, Si) @@ -554,13 +565,14 @@ requeue(SeqIds, PropsF, S) -> RS end), % rabbit_log:info("requeue ->~n ~p", [Result]), + callback([]), Result. %%---------------------------------------------------------------------------- %% len/1 returns the queue length. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% len/1 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. %% %% -spec(len/1 :: (state()) -> non_neg_integer()). @@ -574,8 +586,8 @@ len(S = #s { q_table = QTable }) -> %%---------------------------------------------------------------------------- %% is_empty/1 returns true iff the queue is empty. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% is_empty/1 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. %% %% -spec(is_empty/1 :: (state()) -> boolean()). @@ -637,8 +649,8 @@ handle_pre_hibernate(S) -> S. %% status/1 exists for debugging and operational purposes, to be able %% to expose state via rabbitmqctl. %% -%% This function creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. +%% status/1 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). @@ -723,10 +735,9 @@ internal_fetch(AckRequired, S) -> s(). tx_commit_state(Pubs, SeqIds, PropsF, S) -> - {_, S1} = internal_ack(SeqIds, S), + S1 = internal_ack(SeqIds, S), lists:foldl( fun ({Msg, Props}, Si) -> - confirm(Msg, Props), publish_state(Msg, Props, false, Si) end, S1, @@ -748,7 +759,7 @@ publish_state(Msg, mnesia:write(QTable, #q_record { out_id = OutId, m = M }, 'write'), S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. --spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). +-spec(internal_ack/2 :: ([seq_id()], s()) -> s()). internal_ack(SeqIds, S) -> del_ps(fun (_, Si) -> Si end, SeqIds, S). @@ -821,26 +832,19 @@ add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> %% del_ps deletes some number of pending acks from the P table in %% Mnesia, applying a (Mnesia transactional) function F after each msg -%% is deleted, and returning their guids. +%% is deleted. --spec del_ps(fun (([rabbit_guid:guid()], s()) -> s()), - [rabbit_guid:guid()], - s()) -> - {[rabbit_guid:guid()], s()}. +-spec del_ps(fun ((m(), s()) -> s()), [seq_id()], s()) -> s(). del_ps(F, SeqIds, S = #s { p_table = PTable }) -> - {AllGuids, Sn} = - lists:foldl( - fun (SeqId, {Acc, Si}) -> - [#p_record { - m = M = #m { msg = #basic_message { guid = Guid }} }] = - mnesia:read(PTable, SeqId, 'read'), - mnesia:delete(PTable, SeqId, 'write'), - {[Guid | Acc], F(M, Si)} - end, - {[], S}, - SeqIds), - {lists:reverse(AllGuids), Sn}. + lists:foldl( + fun (SeqId, Si) -> + [#p_record { m = M }] = mnesia:read(PTable, SeqId, 'read'), + mnesia:delete(PTable, SeqId, 'write'), + F(M, Si) + end, + S, + SeqIds). %% save copies the volatile part of the state (next_seq_id and %% next_out_id) to Mnesia. @@ -910,12 +914,19 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- --spec confirm(rabbit_types:basic_message(), rabbit_types:message_properties()) - -> ok. +%% callback/1 calls into the broker to confirm msgs, and expire msgs, +%% and quite possibly to perform yet other side-effects. -confirm(_, #message_properties { needs_confirming = false }) -> ok; -confirm(#basic_message { guid = Guid }, - #message_properties { needs_confirming = true }) -> +-spec callback([{rabbit_types:basic_message(), + rabbit_types:basic_message_properties()}]) -> ok. + +callback(Pubs) -> + Guids = lists:map(fun ({#basic_message { guid = Guid }, + #message_properties { needs_confirming = true }}) + -> [Guid]; + (_) -> [] + end, + Pubs), rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - self(), fun (S) -> {[Guid], S} end), + self(), fun (S) -> {Guids, S} end), ok. diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 7676f381..377d0e4e 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -138,7 +138,7 @@ stop() -> ok. %% init/3 creates one backing queue, returning its state. Names are %% local to the vhost, and must be unique. %% -%% This function should be called only from outside this module. +%% init/3 should be called only from outside this module. %% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) @@ -151,13 +151,14 @@ init(QueueName, IsDurable, Recover) -> next_seq_id = 0, txn_dict = dict:new() }, % rabbit_log:info("init ->~n ~p", [Result]), + callback([]), Result. %%---------------------------------------------------------------------------- %% terminate/1 deletes all of a queue's pending acks, prior to %% shutdown. %% -%% This function should be called only from outside this module. +%% terminate/1 should be called only from outside this module. %% %% -spec(terminate/1 :: (state()) -> state()). @@ -171,7 +172,7 @@ terminate(S) -> %% delete_and_terminate/1 deletes all of a queue's enqueued msgs and %% pending acks, prior to shutdown. %% -%% This function should be called only from outside this module. +%% delete_and_terminate/1 should be called only from outside this module. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). @@ -185,7 +186,7 @@ delete_and_terminate(S) -> %% purge/1 deletes all of queue's enqueued msgs, returning the count %% of msgs purged. %% -%% This function should be called only from outside this module. +%% purge/1 should be called only from outside this module. %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). @@ -198,7 +199,7 @@ purge(S = #s { q = Q }) -> %%---------------------------------------------------------------------------- %% publish/3 publishes a msg. %% -%% This function should be called only from outside this module. +%% publish/3 should be called only from outside this module. %% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), @@ -208,9 +209,9 @@ purge(S = #s { q = Q }) -> publish(Msg, Props, S) -> % rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), - confirm(Msg, Props), Result = publish_state(Msg, Props, false, S), % rabbit_log:info("publish ->~n ~p", [Result]), + callback([{Msg, Props}]), Result. %%---------------------------------------------------------------------------- @@ -218,7 +219,7 @@ publish(Msg, Props, S) -> %% out to a client because the queue is empty. We update all state %% (e.g., next_seq_id) as if we had in fact handled the msg. %% -%% This function should be called only from outside this module. +%% publish_delivered/4 should be called only from outside this module. %% %% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), %% rabbit_types:message_properties(), state()) @@ -227,26 +228,30 @@ publish(Msg, Props, S) -> %% rabbit_types:message_properties(), state()) %% -> {undefined, state()}). -publish_delivered(false, Msg = #basic_message { guid = Guid }, Props, S) -> - % rabbit_log:info("publish_delivered(false,~n ~p,~n _,~n ~p) ->", [Guid, S]), - confirm(Msg, Props), +publish_delivered(false, Msg, Props, S) -> + % rabbit_log:info("publish_delivered(false,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), Result = {undefined, S}, % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + callback([{Msg, Props}]), Result; publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> % rabbit_log:info("publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), - confirm(Msg, Props), Result = {SeqId, (add_p((m(Msg, SeqId, Props)) #m { is_delivered = true }, S)) #s { next_seq_id = SeqId + 1 }}, % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + callback([{Msg, Props}]), Result. %%---------------------------------------------------------------------------- %% dropwhile/2 drops msgs from the head of the queue while there are %% msgs and while the supplied predicate returns true. %% -%% This function should be called only from outside this module. +%% dropwhile/2 cannot call callback/1 because callback/1 ultimately +%% calls rabbit_amqqueue_process:maybe_run_queue_via_backing_queue/2, +%% which calls dropwhile/2. +%% +%% dropwhile/2 should be called only from outside this module. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) @@ -261,7 +266,7 @@ dropwhile(Pred, S) -> %%---------------------------------------------------------------------------- %% fetch/2 produces the next msg, if any. %% -%% This function should be called only from outside this module. +%% fetch/2 should be called only from outside this module. %% %% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; %% (false, state()) -> {fetch_result(undefined), state()}). @@ -270,19 +275,21 @@ fetch(AckRequired, S) -> % rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), Result = internal_fetch(AckRequired, S), % rabbit_log:info("fetch ->~n ~p", [Result]), + callback([]), Result. %%---------------------------------------------------------------------------- %% ack/2 acknowledges msgs named by SeqIds. %% -%% This function should be called only from outside this module. +%% ack/2 should be called only from outside this module. %% %% -spec(ack/2 :: ([ack()], state()) -> state()). ack(SeqIds, S) -> % rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), - {_, Result} = internal_ack(SeqIds, S), + Result = internal_ack(SeqIds, S), % rabbit_log:info("ack ->~n ~p", [Result]), + callback([]), Result. %%---------------------------------------------------------------------------- @@ -290,7 +297,7 @@ ack(SeqIds, S) -> %% msg and its properties in the to_pub field of the txn, waiting to %% be committed. %% -%% This function should be called only from outside this module. +%% tx_publish/4 should be called only from outside this module. %% %% -spec(tx_publish/4 :: %% (rabbit_types:txn(), @@ -310,7 +317,7 @@ tx_publish(Txn, Msg, Props, S) -> %% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in %% the acks field of the txn, waiting to be committed. %% -%% This function should be called only from outside this module. +%% tx_ack/3 should be called only from outside this module. %% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). @@ -324,7 +331,7 @@ tx_ack(Txn, SeqIds, S) -> %%---------------------------------------------------------------------------- %% tx_rollback/2 aborts an AMQP transaction. %% -%% This function should be called only from outside this module. +%% tx_rollback/2 should be called only from outside this module. %% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). @@ -340,7 +347,7 @@ tx_rollback(Txn, S) -> %% once the msgs have really been commited. This CPS permits the %% possibility of commit coalescing. %% -%% This function should be called only from outside this module. +%% tx_commit/4 should be called only from outside this module. %% %% -spec(tx_commit/4 :: %% (rabbit_types:txn(), @@ -355,32 +362,34 @@ tx_commit(Txn, F, PropsF, S) -> Result = {SeqIds, tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S))}, F(), % rabbit_log:info("tx_commit ->~n ~p", [Result]), + callback(Pubs), Result. %%---------------------------------------------------------------------------- %% requeue/3 reinserts msgs into the queue that have already been %% delivered and were pending acknowledgement. %% -%% This function should be called only from outside this module. +%% requeue/3 should be called only from outside this module. %% %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). requeue(SeqIds, PropsF, S) -> % rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), - {_, Result} = del_ps( - fun (#m { msg = Msg, props = Props }, Si) -> - publish_state(Msg, PropsF(Props), true, Si) - end, - SeqIds, - S), + Result = del_ps( + fun (#m { msg = Msg, props = Props }, Si) -> + publish_state(Msg, PropsF(Props), true, Si) + end, + SeqIds, + S), % rabbit_log:info("requeue ->~n ~p", [Result]), + callback([]), Result. %%---------------------------------------------------------------------------- %% len/1 returns the queue length. %% -%% This function should be called only from outside this module. +%% len/1 should be called only from outside this module. %% %% -spec(len/1 :: (state()) -> non_neg_integer()). @@ -393,7 +402,7 @@ len(S = #s { q = Q }) -> %%---------------------------------------------------------------------------- %% is_empty/1 returns true iff the queue is empty. %% -%% This function should be called only from outside this module. +%% is_empty/1 should be called only from outside this module. %% %% -spec(is_empty/1 :: (state()) -> boolean()). @@ -454,7 +463,7 @@ handle_pre_hibernate(S) -> S. %% status/1 exists for debugging and operational purposes, to be able %% to expose state via rabbitmqctl. %% -%% This function should be called only from outside this module. +%% status/1 should be called only from outside this module. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). @@ -481,19 +490,17 @@ internal_fetch(AckRequired, S) -> {{just, M}, S1} -> post_pop(AckRequired, M, S1) end. --spec tx_commit_state([rabbit_types:basic_message()], +-spec tx_commit_state([{rabbit_types:basic_message(), + rabbit_types:message_properties()}], [seq_id()], message_properties_transformer(), s()) -> s(). tx_commit_state(Pubs, SeqIds, PropsF, S) -> - {_, S1} = internal_ack(SeqIds, S), + S1 = internal_ack(SeqIds, S), lists:foldl( - fun ({Msg, Props}, Si) -> - confirm(Msg, Props), - publish_state(Msg, Props, false, Si) - end, + fun ({Msg, Props}, Si) -> publish_state(Msg, Props, false, Si) end, S1, [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). @@ -511,7 +518,7 @@ publish_state(Msg, (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), next_seq_id = SeqId + 1 }. --spec(internal_ack/2 :: ([seq_id()], s()) -> {[rabbit_guid:guid()], s()}). +-spec(internal_ack/2 :: ([seq_id()], s()) -> s()). internal_ack(SeqIds, S) -> del_ps(fun (_, Si) -> Si end, SeqIds, S). @@ -574,25 +581,18 @@ add_p(M = #m { seq_id = SeqId }, S = #s { p = P }) -> S #s { p = dict:store(SeqId, M, P) }. %% del_ps deletes some number of pending acks from the P dict, -%% applying a function F after each msg is deleted, and returning -%% their guids. +%% applying a function F after each msg is deleted. --spec del_ps(fun (([rabbit_guid:guid()], s()) -> s()), - [rabbit_guid:guid()], - s()) -> - {[rabbit_guid:guid()], s()}. +-spec del_ps(fun ((m(), s()) -> s()), [seq_id()], s()) -> s(). del_ps(F, SeqIds, S = #s { p = P }) -> - {AllGuids, Sn} = - lists:foldl( - fun (SeqId, {Acc, Si}) -> - {ok, M = #m { msg = #basic_message { guid = Guid } }} = - dict:find(SeqId, P), - {[Guid | Acc], F(M, Si #s { p = dict:erase(SeqId, P) })} - end, - {[], S}, - SeqIds), - {lists:reverse(AllGuids), Sn}. + lists:foldl( + fun (SeqId, Si) -> + {ok, M} = dict:find(SeqId, P), + F(M, Si #s { p = dict:erase(SeqId, P) }) + end, + S, + SeqIds). %%---------------------------------------------------------------------------- %% Pure helper functions. @@ -628,12 +628,19 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- --spec confirm(rabbit_types:basic_message(), rabbit_types:message_properties()) - -> ok. +%% callback/1 calls into the broker to confirm msgs, and expire msgs, +%% and quite possibly to perform yet other side-effects. + +-spec callback([{rabbit_types:basic_message(), + rabbit_types:basic_message_properties()}]) -> ok. -confirm(_, #message_properties { needs_confirming = false }) -> ok; -confirm(#basic_message { guid = Guid }, - #message_properties { needs_confirming = true }) -> +callback(Pubs) -> + Guids = lists:map(fun ({#basic_message { guid = Guid }, + #message_properties { needs_confirming = true }}) + -> [Guid]; + (_) -> [] + end, + Pubs), rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - self(), fun (S) -> {[Guid], S} end), + self(), fun (S) -> {Guids, S} end), ok. -- cgit v1.2.1 From 023d393d3775e924fd46e74b7a262eb61f4fecc4 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 16 Feb 2011 16:39:22 -0800 Subject: All tests seem to pass now, although some tests seem to be broken. --- src/rabbit_mnesia_queue.erl | 39 +++++++++++++++++++++++++++++---------- src/rabbit_ram_queue.erl | 35 ++++++++++++++++++++++++++--------- 2 files changed, 55 insertions(+), 19 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 387868eb..ac457459 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -409,9 +409,23 @@ dropwhile(Pred, S) -> fetch(AckRequired, S) -> % rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), + % + % TODO: This dropwhile is to help the testPublishAndGetWithExpiry + % functional test pass. Although msg expiration is asynchronous by + % design, that test depends on very quick expiration. That test is + % therefore nondeterministic (sometimes passing, sometimes + % failing) and should be rewritten, at which point this dropwhile + % could be, well, dropped. + Now = timer:now_diff(now(), {0,0,0}), + S1 = dropwhile( + fun (#message_properties{expiry = Expiry}) -> + % rabbit_log:info("inside fetch, Now = ~p, Expiry = ~p, decision = ~p", [Now, Expiry, Expiry < Now]), + Expiry < Now + end, + S), {atomic, FR} = - mnesia:transaction(fun () -> internal_fetch(AckRequired, S) end), - Result = {FR, S}, + mnesia:transaction(fun () -> internal_fetch(AckRequired, S1) end), + Result = {FR, S1}, % rabbit_log:info("fetch ->~n ~p", [Result]), callback([]), Result. @@ -914,19 +928,24 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- -%% callback/1 calls into the broker to confirm msgs, and expire msgs, -%% and quite possibly to perform yet other side-effects. +%% callback/1 calls back into the broker to confirm msgs, and expire +%% msgs, and quite possibly to perform yet other side-effects. It's +%% black magic. -spec callback([{rabbit_types:basic_message(), rabbit_types:basic_message_properties()}]) -> ok. callback(Pubs) -> - Guids = lists:map(fun ({#basic_message { guid = Guid }, - #message_properties { needs_confirming = true }}) - -> [Guid]; - (_) -> [] - end, - Pubs), + rabbit_log:info("callback(~n ~p)", [Pubs]), + Guids = + lists:append( + lists:map(fun ({#basic_message { guid = Guid }, + #message_properties { needs_confirming = true }}) + -> [Guid]; + (_) -> [] + end, + Pubs)), + rabbit_log:info("Guids = ~p)", [Guids]), rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( self(), fun (S) -> {Guids, S} end), ok. diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 377d0e4e..ad40f1b3 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -273,6 +273,20 @@ dropwhile(Pred, S) -> fetch(AckRequired, S) -> % rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), + % + % TODO: This dropwhile is to help the testPublishAndGetWithExpiry + % functional test pass. Although msg expiration is asynchronous by + % design, that test depends on very quick expiration. That test is + % therefore nondeterministic (sometimes passing, sometimes + % failing) and should be rewritten, at which point this dropwhile + % could be, well, dropped. + Now = timer:now_diff(now(), {0,0,0}), + S1 = dropwhile( + fun (#message_properties{expiry = Expiry}) -> + % rabbit_log:info("inside fetch, Now = ~p, Expiry = ~p, decision = ~p", [Now, Expiry, Expiry < Now]), + Expiry < Now + end, + S), Result = internal_fetch(AckRequired, S), % rabbit_log:info("fetch ->~n ~p", [Result]), callback([]), @@ -628,19 +642,22 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> %% Internal plumbing for confirms (aka publisher acks) %%---------------------------------------------------------------------------- -%% callback/1 calls into the broker to confirm msgs, and expire msgs, -%% and quite possibly to perform yet other side-effects. +%% callback/1 calls back into the broker to confirm msgs, and expire +%% msgs, and quite possibly to perform yet other side-effects. It's +%% black magic. -spec callback([{rabbit_types:basic_message(), - rabbit_types:basic_message_properties()}]) -> ok. + rabbit_types:basic_message_properties()}]) -> ok. callback(Pubs) -> - Guids = lists:map(fun ({#basic_message { guid = Guid }, - #message_properties { needs_confirming = true }}) - -> [Guid]; - (_) -> [] - end, - Pubs), + Guids = + lists:append( + lists:map(fun ({#basic_message { guid = Guid }, + #message_properties { needs_confirming = true }}) + -> [Guid]; + (_) -> [] + end, + Pubs)), rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( self(), fun (S) -> {Guids, S} end), ok. -- cgit v1.2.1 From 7f9fbc79ba10e09b05cb213fdae205dff95c2f62 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 22 Feb 2011 13:40:51 -0800 Subject: Getting ready to make the code into a plug-in. --- src/rabbit_mnesia_queue.erl | 17 +++++++---------- src/rabbit_ram_queue.erl | 21 +++++++++------------ 2 files changed, 16 insertions(+), 22 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index ac457459..21e4b553 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -37,7 +37,7 @@ %% and pending acks are both stored in Mnesia. %% %% All queues are durable in this version, and all msgs are treated as -%% persistent. (This will break some clients and some tests for +%% persistent. (This may break some clients and some tests for %% non-durable queues.) %% ---------------------------------------------------------------------------- @@ -418,10 +418,7 @@ fetch(AckRequired, S) -> % could be, well, dropped. Now = timer:now_diff(now(), {0,0,0}), S1 = dropwhile( - fun (#message_properties{expiry = Expiry}) -> - % rabbit_log:info("inside fetch, Now = ~p, Expiry = ~p, decision = ~p", [Now, Expiry, Expiry < Now]), - Expiry < Now - end, + fun (#message_properties{expiry = Expiry}) -> Expiry < Now end, S), {atomic, FR} = mnesia:transaction(fun () -> internal_fetch(AckRequired, S1) end), @@ -590,7 +587,7 @@ requeue(SeqIds, PropsF, S) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(S = #s { q_table = QTable }) -> +len(#s { q_table = QTable }) -> % rabbit_log:info("len(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), @@ -605,7 +602,7 @@ len(S = #s { q_table = QTable }) -> %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(S = #s { q_table = QTable }) -> +is_empty(#s { q_table = QTable }) -> % rabbit_log:info("is_empty(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), @@ -668,9 +665,9 @@ handle_pre_hibernate(S) -> S. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(S = #s { q_table = QTable, - p_table = PTable, - next_seq_id = NextSeqId }) -> +status(#s { q_table = QTable, + p_table = PTable, + next_seq_id = NextSeqId }) -> % rabbit_log:info("status(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index ad40f1b3..f5b40733 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -36,9 +36,9 @@ %% additional information. Pending acks are also recorded as Ms. Msgs %% and pending acks are both stored in RAM. %% -%% All queues are durable in this version, and all msgs are treated as -%% persistent. (This will break some clients and some tests for -%% non-durable queues.) +%% All queues are non-durable in this version, and all msgs are +%% treated as non-persistent. (This may break some clients and some +%% tests for durable queues.) %% ---------------------------------------------------------------------------- %% TODO: Need to provide better back-pressure when queue is filling up. @@ -144,7 +144,7 @@ stop() -> ok. %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) %% -> state()). -init(QueueName, IsDurable, Recover) -> +init(_QueueName, _IsDurable, _Recover) -> % rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), Result = #s { q = queue:new(), p = dict:new(), @@ -282,12 +282,9 @@ fetch(AckRequired, S) -> % could be, well, dropped. Now = timer:now_diff(now(), {0,0,0}), S1 = dropwhile( - fun (#message_properties{expiry = Expiry}) -> - % rabbit_log:info("inside fetch, Now = ~p, Expiry = ~p, decision = ~p", [Now, Expiry, Expiry < Now]), - Expiry < Now - end, + fun (#message_properties{expiry = Expiry}) -> Expiry < Now end, S), - Result = internal_fetch(AckRequired, S), + Result = internal_fetch(AckRequired, S1), % rabbit_log:info("fetch ->~n ~p", [Result]), callback([]), Result. @@ -407,7 +404,7 @@ requeue(SeqIds, PropsF, S) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(S = #s { q = Q }) -> +len(#s { q = Q }) -> % rabbit_log:info("len(~n ~p) ->", [S]), Result = queue:len(Q), % rabbit_log:info("len ->~n ~p", [Result]), @@ -420,7 +417,7 @@ len(S = #s { q = Q }) -> %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(S = #s { q = Q }) -> +is_empty(#s { q = Q }) -> % rabbit_log:info("is_empty(~n ~p) ->", [S]), Result = queue:is_empty(Q), % rabbit_log:info("is_empty ->~n ~p", [Result]), @@ -481,7 +478,7 @@ handle_pre_hibernate(S) -> S. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(S = #s { q = Q, p = P, next_seq_id = NextSeqId }) -> +status(#s { q = Q, p = P, next_seq_id = NextSeqId }) -> % rabbit_log:info("status(~n ~p) ->", [S]), Result = [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, dict:size(P)}], -- cgit v1.2.1 From 1dc631e0df7ad09dc47059058b97d24e4df72cd6 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 1 Mar 2011 10:14:10 -0800 Subject: Bringing Jerry up to date. --- src/rabbit_mnesia_queue.erl | 41 ++++++++++++++++++++--------------------- src/rabbit_ram_queue.erl | 18 +++++++++--------- 2 files changed, 29 insertions(+), 30 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 21e4b553..663241a2 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -152,10 +152,12 @@ props :: rabbit_types:message_properties(), is_delivered :: boolean() }). --type(tx() :: #tx { to_pub :: [{rabbit_types:basic_message(), - rabbit_types:message_properties()}], +-type(tx() :: #tx { to_pub :: [pub()], to_ack :: [seq_id()] }). +-type(pub() :: { rabbit_types:basic_message(), + rabbit_types:message_properties() }). + -type(q_record() :: #q_record { out_id :: non_neg_integer(), m :: m() }). @@ -176,9 +178,9 @@ %% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. %%---------------------------------------------------------------------------- -%% start/1 promises that a list of (durable) queue names will be -%% started in the near future. This lets us perform early checking of -%% the consistency of those queues, and initialize other shared +%% start/1 promises that a list of (durable) queues will be started in +%% the near future. This lets us perform early checking of the +%% consistency of those queues, and initialize other shared %% resources. It is ignored in this implementation. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). @@ -291,8 +293,8 @@ delete_and_terminate(S = #s { q_table = QTable, Result. %%---------------------------------------------------------------------------- -%% purge/1 deletes all of queue's enqueued msgs, generating pending -%% acks as required, and returning the count of msgs purged. +%% purge/1 deletes all of queue's enqueued msgs, returning the count +%% of msgs purged. %% %% purge/1 creates an Mnesia transaction to run in, and therefore may %% not be called from inside another Mnesia transaction. @@ -489,10 +491,8 @@ tx_ack(Txn, SeqIds, S) -> {atomic, Result} = mnesia:transaction( fun () -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), - RS = store_tx(Txn, - Tx #tx { - to_ack = lists:append(SeqIds, SeqIds0) }, - S), + RS = store_tx( + Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, S), save(RS), RS end), @@ -739,7 +739,7 @@ internal_fetch(AckRequired, S) -> {just, M} -> post_pop(AckRequired, M, S) end. --spec tx_commit_state([rabbit_types:basic_message()], +-spec tx_commit_state([pub()], [seq_id()], message_properties_transformer(), s()) -> @@ -880,9 +880,9 @@ save(#s { n_table = NTable, %% TODO: Import correct argument type. %% BUG: Mnesia has undocumented restrictions on table names. Names -%% with slashes fail some operations, so we replace replace slashes -%% with the string SLASH. We should extend this as necessary, and -%% perhaps make it a little prettier. +%% with slashes fail some operations, so we eliminate slashes. We +%% should extend this as necessary, and perhaps make it a little +%% prettier. -spec tables({resource, binary(), queue, binary()}) -> {atom(), atom(), atom()}. @@ -890,10 +890,10 @@ save(#s { n_table = NTable, tables({resource, VHost, queue, Name}) -> VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), - Str = lists:flatten(io_lib:format("~p ~p", [VHost2, Name2])), - {list_to_atom(lists:append("q: ", Str)), - list_to_atom(lists:append("p: ", Str)), - list_to_atom(lists:append("n: ", Str))}. + Str = lists:flatten(io_lib:format("~999999999p", [{VHost2, Name2}])), + {list_to_atom("q" ++ Str), + list_to_atom("p" ++ Str), + list_to_atom("n" ++ Str)}. -spec m(rabbit_types:basic_message(), seq_id(), @@ -929,8 +929,7 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> %% msgs, and quite possibly to perform yet other side-effects. It's %% black magic. --spec callback([{rabbit_types:basic_message(), - rabbit_types:basic_message_properties()}]) -> ok. +-spec callback([pub()]) -> ok. callback(Pubs) -> rabbit_log:info("callback(~n ~p)", [Pubs]), diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index f5b40733..4afe73ea 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -103,10 +103,12 @@ props :: rabbit_types:message_properties(), is_delivered :: boolean() }). --type(tx() :: #tx { to_pub :: [{rabbit_types:basic_message(), - rabbit_types:message_properties()}], +-type(tx() :: #tx { to_pub :: [pub()], to_ack :: [seq_id()] }). +-type(pub() :: { rabbit_types:basic_message(), + rabbit_types:message_properties() }). + -include("rabbit_backing_queue_spec.hrl"). %% -endif. @@ -117,9 +119,9 @@ %% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. %%---------------------------------------------------------------------------- -%% start/1 promises that a list of (durable) queue names will be -%% started in the near future. This lets us perform early checking of -%% the consistency of those queues, and initialize other shared +%% start/1 promises that a list of (durable) queues will be started in +%% the near future. This lets us perform early checking of the +%% consistency of those queues, and initialize other shared %% resources. It is ignored in this implementation. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). @@ -501,8 +503,7 @@ internal_fetch(AckRequired, S) -> {{just, M}, S1} -> post_pop(AckRequired, M, S1) end. --spec tx_commit_state([{rabbit_types:basic_message(), - rabbit_types:message_properties()}], +-spec tx_commit_state([pub()], [seq_id()], message_properties_transformer(), s()) -> @@ -643,8 +644,7 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> %% msgs, and quite possibly to perform yet other side-effects. It's %% black magic. --spec callback([{rabbit_types:basic_message(), - rabbit_types:basic_message_properties()}]) -> ok. +-spec callback([pub()]) -> ok. callback(Pubs) -> Guids = -- cgit v1.2.1 From 4a58760e91816ec02cecd66ebc4f047ea2b380ed Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 2 Mar 2011 15:03:55 +0000 Subject: Move uri_parser from the shovel to the broker so federation can share it. --- src/uri_parser.erl | 118 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 src/uri_parser.erl diff --git a/src/uri_parser.erl b/src/uri_parser.erl new file mode 100644 index 00000000..00abae5e --- /dev/null +++ b/src/uri_parser.erl @@ -0,0 +1,118 @@ +%% This file is a copy of http_uri.erl from the R13B-1 Erlang/OTP +%% distribution with several modifications. + +%% All modifications are Copyright (c) 2009-2011 VMware, Ltd. + +%% ``The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved via the world wide web at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. +%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings +%% AB. All Rights Reserved.'' + +%% See http://tools.ietf.org/html/rfc3986 + +-module(uri_parser). + +-export([parse/2]). + +%%%========================================================================= +%%% API +%%%========================================================================= + +%% Returns a key list of elements extracted from the URI. Note that +%% only 'scheme' is guaranteed to exist. Key-Value pairs from the +%% Defaults list will be used absence of a non-empty value extracted +%% from the URI. The values extracted are strings, except for 'port' +%% which is an integer, 'userinfo' which is a list of strings (split +%% on $:), and 'query' which is a list of strings where no $= char +%% found, or a {key,value} pair where a $= char is found (initial +%% split on $& and subsequent optional split on $=). Possible keys +%% are: 'scheme', 'userinfo', 'host', 'port', 'path', 'query', +%% 'fragment'. + +parse(AbsURI, Defaults) -> + case parse_scheme(AbsURI) of + {error, Reason} -> + {error, Reason}; + {Scheme, Rest} -> + case (catch parse_uri_rest(Rest, true)) of + [_|_] = List -> + merge_keylists([{scheme, Scheme} | List], Defaults); + E -> + {error, {malformed_uri, AbsURI, E}} + end + end. + +%%%======================================================================== +%%% Internal functions +%%%======================================================================== +parse_scheme(AbsURI) -> + split_uri(AbsURI, ":", {error, no_scheme}). + +parse_uri_rest("//" ++ URIPart, true) -> + %% we have an authority + {Authority, PathQueryFrag} = + split_uri(URIPart, "/|\\?|#", {URIPart, ""}, 1, 0), + AuthorityParts = parse_authority(Authority), + parse_uri_rest(PathQueryFrag, false) ++ AuthorityParts; +parse_uri_rest(PathQueryFrag, _Bool) -> + %% no authority, just a path and maybe query + {PathQuery, Frag} = split_uri(PathQueryFrag, "#", {PathQueryFrag, ""}), + {Path, QueryString} = split_uri(PathQuery, "\\?", {PathQuery, ""}), + QueryPropList = split_query(QueryString), + [{path, Path}, {'query', QueryPropList}, {fragment, Frag}]. + +parse_authority(Authority) -> + {UserInfo, HostPort} = split_uri(Authority, "@", {"", Authority}), + UserInfoSplit = case re:split(UserInfo, ":", [{return, list}]) of + [""] -> []; + UIS -> UIS + end, + [{userinfo, UserInfoSplit} | parse_host_port(HostPort)]. + +parse_host_port("[" ++ HostPort) -> %ipv6 + {Host, ColonPort} = split_uri(HostPort, "\\]", {HostPort, ""}), + [{host, Host} | case split_uri(ColonPort, ":", not_found, 0, 1) of + not_found -> []; + {_, Port} -> [{port, list_to_integer(Port)}] + end]; + +parse_host_port(HostPort) -> + {Host, Port} = split_uri(HostPort, ":", {HostPort, not_found}), + [{host, Host} | case Port of + not_found -> []; + _ -> [{port, list_to_integer(Port)}] + end]. + +split_query(Query) -> + case re:split(Query, "&", [{return, list}]) of + [""] -> []; + QParams -> [split_uri(Param, "=", Param) || Param <- QParams] + end. + +split_uri(UriPart, SplitChar, NoMatchResult) -> + split_uri(UriPart, SplitChar, NoMatchResult, 1, 1). + +split_uri(UriPart, SplitChar, NoMatchResult, SkipLeft, SkipRight) -> + case re:run(UriPart, SplitChar) of + {match, [{Match, _}]} -> + {string:substr(UriPart, 1, Match + 1 - SkipLeft), + string:substr(UriPart, Match + 1 + SkipRight, length(UriPart))}; + nomatch -> + NoMatchResult + end. + +merge_keylists(A, B) -> + {AEmpty, ANonEmpty} = lists:partition(fun ({_Key, V}) -> V =:= [] end, A), + [AEmptyS, ANonEmptyS, BS] = + [lists:ukeysort(1, X) || X <- [AEmpty, ANonEmpty, B]], + lists:ukeymerge(1, lists:ukeymerge(1, ANonEmptyS, BS), AEmptyS). -- cgit v1.2.1 From 08d4736d14bc4039ef3b7e4a2833b82744db1c2b Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 3 Mar 2011 14:19:39 +0000 Subject: Pre-junk --- INSTALL.in | 10 - LICENSE | 5 - LICENSE-MPL-RabbitMQ | 455 ---- Makefile | 315 --- README.in | 10 - calculate-relative | 45 - codegen.py | 493 ---- docs/examples-to-end.xsl | 94 - docs/html-to-website-xml.xsl | 98 - docs/rabbitmq-env.conf.5.xml | 83 - docs/rabbitmq-server.1.xml | 131 -- docs/rabbitmq-service.xml | 217 -- docs/rabbitmqctl.1.xml | 1269 ----------- docs/remove-namespaces.xsl | 18 - docs/usage.xsl | 78 - ebin/rabbit_app.in | 44 - generate_app | 12 - generate_deps | 57 - include/gm_specs.hrl | 28 - include/rabbit.hrl | 101 - include/rabbit_auth_backend_spec.hrl | 32 - include/rabbit_auth_mechanism_spec.hrl | 28 - include/rabbit_backing_queue_spec.hrl | 67 - include/rabbit_exchange_type_spec.hrl | 36 - include/rabbit_msg_store.hrl | 26 - include/rabbit_msg_store_index.hrl | 45 - packaging/RPMS/Fedora/Makefile | 44 - packaging/RPMS/Fedora/rabbitmq-server.logrotate | 12 - packaging/RPMS/Fedora/rabbitmq-server.spec | 196 -- packaging/common/rabbitmq-script-wrapper | 42 - packaging/common/rabbitmq-server.init | 153 -- packaging/common/rabbitmq-server.ocf | 341 --- packaging/debs/Debian/Makefile | 41 - packaging/debs/Debian/check-changelog.sh | 29 - packaging/debs/Debian/debian/changelog | 156 -- packaging/debs/Debian/debian/compat | 1 - packaging/debs/Debian/debian/control | 18 - packaging/debs/Debian/debian/copyright | 502 ----- packaging/debs/Debian/debian/dirs | 9 - packaging/debs/Debian/debian/postinst | 60 - packaging/debs/Debian/debian/postrm.in | 73 - .../debs/Debian/debian/rabbitmq-server.logrotate | 12 - packaging/debs/Debian/debian/rules | 21 - packaging/debs/Debian/debian/watch | 4 - packaging/debs/apt-repository/Makefile | 28 - packaging/debs/apt-repository/README | 17 - .../debs/apt-repository/README-real-repository | 130 -- packaging/debs/apt-repository/distributions | 7 - packaging/debs/apt-repository/dupload.conf | 16 - packaging/generic-unix/Makefile | 23 - packaging/macports/Makefile | 59 - packaging/macports/Portfile.in | 118 - packaging/macports/make-checksums.sh | 14 - packaging/macports/make-port-diff.sh | 27 - .../patch-org.macports.rabbitmq-server.plist.diff | 10 - packaging/windows-exe/Makefile | 16 - packaging/windows-exe/lib/EnvVarUpdate.nsh | 327 --- packaging/windows-exe/rabbitmq.ico | Bin 4286 -> 0 bytes packaging/windows-exe/rabbitmq_nsi.in | 241 -- packaging/windows/Makefile | 35 - scripts/rabbitmq-env | 44 - scripts/rabbitmq-server | 117 - scripts/rabbitmq-server.bat | 156 -- scripts/rabbitmq-service.bat | 244 -- scripts/rabbitmqctl | 31 - scripts/rabbitmqctl.bat | 49 - src/bpqueue.erl | 271 --- src/delegate.erl | 154 -- src/delegate_sup.erl | 59 - src/file_handle_cache.erl | 1199 ---------- src/gatherer.erl | 130 -- src/gen_server2.erl | 1177 ---------- src/gm.erl | 1321 ----------- src/gm_soak_test.erl | 130 -- src/gm_tests.erl | 182 -- src/pg_local.erl | 213 -- src/priority_queue.erl | 176 -- src/rabbit.erl | 510 ----- src/rabbit_access_control.erl | 137 -- src/rabbit_alarm.erl | 109 - src/rabbit_amqqueue.erl | 505 ----- src/rabbit_amqqueue_process.erl | 1160 ---------- src/rabbit_amqqueue_sup.erl | 38 - src/rabbit_auth_backend.erl | 61 - src/rabbit_auth_backend_internal.erl | 332 --- src/rabbit_auth_mechanism.erl | 46 - src/rabbit_auth_mechanism_amqplain.erl | 58 - src/rabbit_auth_mechanism_cr_demo.erl | 62 - src/rabbit_auth_mechanism_plain.erl | 79 - src/rabbit_backing_queue.erl | 128 -- src/rabbit_basic.erl | 189 -- src/rabbit_binary_generator.erl | 336 --- src/rabbit_binary_parser.erl | 165 -- src/rabbit_binding.erl | 422 ---- src/rabbit_channel.erl | 1443 ------------ src/rabbit_channel_sup.erl | 92 - src/rabbit_channel_sup_sup.erl | 48 - src/rabbit_client_sup.erl | 48 - src/rabbit_command_assembler.erl | 133 -- src/rabbit_connection_sup.erl | 65 - src/rabbit_control.erl | 424 ---- src/rabbit_direct.erl | 79 - src/rabbit_error_logger.erl | 74 - src/rabbit_error_logger_file_h.erl | 68 - src/rabbit_event.erl | 137 -- src/rabbit_exchange.erl | 310 --- src/rabbit_exchange_type.erl | 50 - src/rabbit_exchange_type_direct.erl | 49 - src/rabbit_exchange_type_fanout.erl | 48 - src/rabbit_exchange_type_headers.erl | 122 - src/rabbit_exchange_type_topic.erl | 256 --- src/rabbit_framing.erl | 49 - src/rabbit_guid.erl | 119 - src/rabbit_heartbeat.erl | 149 -- src/rabbit_limiter.erl | 234 -- src/rabbit_log.erl | 132 -- src/rabbit_memory_monitor.erl | 280 --- src/rabbit_misc.erl | 874 -------- src/rabbit_mnesia.erl | 609 ----- src/rabbit_msg_file.erl | 122 - src/rabbit_msg_store.erl | 2012 ----------------- src/rabbit_msg_store_ets_index.erl | 79 - src/rabbit_msg_store_gc.erl | 137 -- src/rabbit_msg_store_index.erl | 32 - src/rabbit_net.erl | 119 - src/rabbit_networking.erl | 390 ---- src/rabbit_node_monitor.erl | 101 - src/rabbit_prelaunch.erl | 276 --- src/rabbit_queue_collector.erl | 92 - src/rabbit_queue_index.erl | 1071 --------- src/rabbit_reader.erl | 910 -------- src/rabbit_registry.erl | 124 -- src/rabbit_restartable_sup.erl | 32 - src/rabbit_router.erl | 119 - 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Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/LICENSE b/LICENSE deleted file mode 100644 index 89640485..00000000 --- a/LICENSE +++ /dev/null @@ -1,5 +0,0 @@ -This package, the RabbitMQ server is licensed under the MPL. For the -MPL, please see LICENSE-MPL-RabbitMQ. - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. diff --git a/LICENSE-MPL-RabbitMQ b/LICENSE-MPL-RabbitMQ deleted file mode 100644 index 14bcc21d..00000000 --- a/LICENSE-MPL-RabbitMQ +++ /dev/null @@ -1,455 +0,0 @@ - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] diff --git a/Makefile b/Makefile deleted file mode 100644 index 00c7809d..00000000 --- a/Makefile +++ /dev/null @@ -1,315 +0,0 @@ -TMPDIR ?= /tmp - -RABBITMQ_NODENAME ?= rabbit -RABBITMQ_SERVER_START_ARGS ?= -RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia -RABBITMQ_PLUGINS_EXPAND_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-plugins-scratch -RABBITMQ_LOG_BASE ?= $(TMPDIR) - -DEPS_FILE=deps.mk -SOURCE_DIR=src -EBIN_DIR=ebin -INCLUDE_DIR=include -DOCS_DIR=docs -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl -SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) -BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) -TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) -WEB_URL=http://www.rabbitmq.com/ -MANPAGES=$(patsubst %.xml, %.gz, $(wildcard $(DOCS_DIR)/*.[0-9].xml)) -WEB_MANPAGES=$(patsubst %.xml, %.man.xml, $(wildcard $(DOCS_DIR)/*.[0-9].xml) $(DOCS_DIR)/rabbitmq-service.xml) -USAGES_XML=$(DOCS_DIR)/rabbitmqctl.1.xml -USAGES_ERL=$(foreach XML, $(USAGES_XML), $(call usage_xml_to_erl, $(XML))) - -ifeq ($(shell python -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python -else -ifeq ($(shell python2.6 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.6 -else -ifeq ($(shell python2.5 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.5 -else -# Hmm. Missing simplejson? -PYTHON=python -endif -endif -endif - -BASIC_PLT=basic.plt -RABBIT_PLT=rabbit.plt - -ifndef USE_SPECS -# our type specs rely on features and bug fixes in dialyzer that are -# only available in R14A upwards (R14A is erts 5.8) -USE_SPECS:=$(shell erl -noshell -eval 'io:format([list_to_integer(X) || X <- string:tokens(erlang:system_info(version), ".")] >= [5,8]), halt().') -endif - -#other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(if $(filter true,$(USE_SPECS)),-Duse_specs) - -VERSION=0.0.0 -TARBALL_NAME=rabbitmq-server-$(VERSION) -TARGET_SRC_DIR=dist/$(TARBALL_NAME) - -SIBLING_CODEGEN_DIR=../rabbitmq-codegen/ -AMQP_CODEGEN_DIR=$(shell [ -d $(SIBLING_CODEGEN_DIR) ] && echo $(SIBLING_CODEGEN_DIR) || echo codegen) -AMQP_SPEC_JSON_FILES_0_9_1=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.9.1.json -AMQP_SPEC_JSON_FILES_0_8=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.8.json - -ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e - -ERL_EBIN=erl -noinput -pa $(EBIN_DIR) - -define usage_xml_to_erl - $(subst __,_,$(patsubst $(DOCS_DIR)/rabbitmq%.1.xml, $(SOURCE_DIR)/rabbit_%_usage.erl, $(subst -,_,$(1)))) -endef - -define usage_dep - $(call usage_xml_to_erl, $(1)): $(1) $(DOCS_DIR)/usage.xsl -endef - -ifneq "$(SBIN_DIR)" "" -ifneq "$(TARGET_DIR)" "" -SCRIPTS_REL_PATH=$(shell ./calculate-relative $(TARGET_DIR)/sbin $(SBIN_DIR)) -endif -endif - -# Versions prior to this are not supported -NEED_MAKE := 3.80 -ifneq "$(NEED_MAKE)" "$(firstword $(sort $(NEED_MAKE) $(MAKE_VERSION)))" -$(error Versions of make prior to $(NEED_MAKE) are not supported) -endif - -# .DEFAULT_GOAL introduced in 3.81 -DEFAULT_GOAL_MAKE := 3.81 -ifneq "$(DEFAULT_GOAL_MAKE)" "$(firstword $(sort $(DEFAULT_GOAL_MAKE) $(MAKE_VERSION)))" -.DEFAULT_GOAL=all -endif - -all: $(TARGETS) - -$(DEPS_FILE): $(SOURCES) $(INCLUDES) - rm -f $@ - echo $(subst : ,:,$(foreach FILE,$^,$(FILE):)) | escript generate_deps $@ $(EBIN_DIR) - -$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app - escript generate_app $(EBIN_DIR) $@ < $< - -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl | $(DEPS_FILE) - erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< - -$(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py --ignore-conflicts header $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_9_1) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_8) $@ - -dialyze: $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --no_native \ - -Wrace_conditions $(BEAM_TARGETS) - -# rabbit.plt is used by rabbitmq-erlang-client's dialyze make target -create-plt: $(RABBIT_PLT) - -$(RABBIT_PLT): $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --output_plt $@ --no_native \ - --add_to_plt $(BEAM_TARGETS) - -$(BASIC_PLT): $(BEAM_TARGETS) - if [ -f $@ ]; then \ - touch $@; \ - else \ - dialyzer --output_plt $@ --build_plt \ - --apps erts kernel stdlib compiler sasl os_mon mnesia tools \ - public_key crypto ssl; \ - fi - -clean: - rm -f $(EBIN_DIR)/*.beam - rm -f $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script $(EBIN_DIR)/rabbit.rel - rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCE_DIR)/rabbit_framing_amqp_*.erl codegen.pyc - rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) - rm -f $(RABBIT_PLT) - rm -f $(DEPS_FILE) - -cleandb: - rm -rf $(RABBITMQ_MNESIA_DIR)/* - -############ various tasks to interact with RabbitMQ ################### - -BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\ - RABBITMQ_NODE_IP_ADDRESS="$(RABBITMQ_NODE_IP_ADDRESS)" \ - RABBITMQ_NODE_PORT="$(RABBITMQ_NODE_PORT)" \ - RABBITMQ_LOG_BASE="$(RABBITMQ_LOG_BASE)" \ - RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" \ - RABBITMQ_PLUGINS_EXPAND_DIR="$(RABBITMQ_PLUGINS_EXPAND_DIR)" - -run: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-node: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-tests: all - echo "rabbit_tests:all_tests()." | $(ERL_CALL) - -start-background-node: - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server; sleep 1 - -start-rabbit-on-node: all - echo "rabbit:start()." | $(ERL_CALL) - -stop-rabbit-on-node: all - echo "rabbit:stop()." | $(ERL_CALL) - -set-memory-alarm: all - echo "alarm_handler:set_alarm({vm_memory_high_watermark, []})." | \ - $(ERL_CALL) - -clear-memory-alarm: all - echo "alarm_handler:clear_alarm(vm_memory_high_watermark)." | \ - $(ERL_CALL) - -stop-node: - -$(ERL_CALL) -q - -# code coverage will be created for subdirectory "ebin" of COVER_DIR -COVER_DIR=. - -start-cover: all - echo "rabbit_misc:start_cover([\"rabbit\", \"hare\"])." | $(ERL_CALL) - echo "rabbit_misc:enable_cover([\"$(COVER_DIR)\"])." | $(ERL_CALL) - -start-secondary-cover: all - echo "rabbit_misc:start_cover([\"hare\"])." | $(ERL_CALL) - -stop-cover: all - echo "rabbit_misc:report_cover(), cover:stop()." | $(ERL_CALL) - cat cover/summary.txt - -######################################################################## - -srcdist: distclean - mkdir -p $(TARGET_SRC_DIR)/codegen - cp -r ebin src include LICENSE LICENSE-MPL-RabbitMQ $(TARGET_SRC_DIR) - cp INSTALL.in $(TARGET_SRC_DIR)/INSTALL - elinks -dump -no-references -no-numbering $(WEB_URL)install.html \ - >> $(TARGET_SRC_DIR)/INSTALL - cp README.in $(TARGET_SRC_DIR)/README - elinks -dump -no-references -no-numbering $(WEB_URL)build-server.html \ - >> $(TARGET_SRC_DIR)/README - sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save - - cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ - cp codegen.py Makefile generate_app generate_deps calculate-relative $(TARGET_SRC_DIR) - - cp -r scripts $(TARGET_SRC_DIR) - cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) - chmod 0755 $(TARGET_SRC_DIR)/scripts/* - - (cd dist; tar -zcf $(TARBALL_NAME).tar.gz $(TARBALL_NAME)) - (cd dist; zip -r $(TARBALL_NAME).zip $(TARBALL_NAME)) - rm -rf $(TARGET_SRC_DIR) - -distclean: clean - $(MAKE) -C $(AMQP_CODEGEN_DIR) distclean - rm -rf dist - find . -regex '.*\(~\|#\|\.swp\|\.dump\)' -exec rm {} \; - -# xmlto can not read from standard input, so we mess with a tmp file. -%.gz: %.xml $(DOCS_DIR)/examples-to-end.xsl - xmlto --version | grep -E '^xmlto version 0\.0\.([0-9]|1[1-8])$$' >/dev/null || opt='--stringparam man.indent.verbatims=0' ; \ - xsltproc $(DOCS_DIR)/examples-to-end.xsl $< > $<.tmp && \ - xmlto -o $(DOCS_DIR) $$opt man $<.tmp && \ - gzip -f $(DOCS_DIR)/`basename $< .xml` - rm -f $<.tmp - -# Use tmp files rather than a pipeline so that we get meaningful errors -# Do not fold the cp into previous line, it's there to stop the file being -# generated but empty if we fail -$(SOURCE_DIR)/%_usage.erl: - xsltproc --stringparam modulename "`basename $@ .erl`" \ - $(DOCS_DIR)/usage.xsl $< > $@.tmp - sed -e 's/"/\\"/g' -e 's/%QUOTE%/"/g' $@.tmp > $@.tmp2 - fold -s $@.tmp2 > $@.tmp3 - mv $@.tmp3 $@ - rm $@.tmp $@.tmp2 - -# We rename the file before xmlto sees it since xmlto will use the name of -# the file to make internal links. -%.man.xml: %.xml $(DOCS_DIR)/html-to-website-xml.xsl - cp $< `basename $< .xml`.xml && \ - xmlto xhtml-nochunks `basename $< .xml`.xml ; rm `basename $< .xml`.xml - cat `basename $< .xml`.html | \ - xsltproc --novalid $(DOCS_DIR)/remove-namespaces.xsl - | \ - xsltproc --stringparam original `basename $<` $(DOCS_DIR)/html-to-website-xml.xsl - | \ - xmllint --format - > $@ - rm `basename $< .xml`.html - -docs_all: $(MANPAGES) $(WEB_MANPAGES) - -install: install_bin install_docs - -install_bin: all install_dirs - cp -r ebin include LICENSE LICENSE-MPL-RabbitMQ INSTALL $(TARGET_DIR) - - chmod 0755 scripts/* - for script in rabbitmq-env rabbitmq-server rabbitmqctl; do \ - cp scripts/$$script $(TARGET_DIR)/sbin; \ - [ -e $(SBIN_DIR)/$$script ] || ln -s $(SCRIPTS_REL_PATH)/$$script $(SBIN_DIR)/$$script; \ - done - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory. > $(TARGET_DIR)/plugins/README - -install_docs: docs_all install_dirs - for section in 1 5; do \ - mkdir -p $(MAN_DIR)/man$$section; \ - for manpage in $(DOCS_DIR)/*.$$section.gz; do \ - cp $$manpage $(MAN_DIR)/man$$section; \ - done; \ - done - -install_dirs: - @ OK=true && \ - { [ -n "$(TARGET_DIR)" ] || { echo "Please set TARGET_DIR."; OK=false; }; } && \ - { [ -n "$(SBIN_DIR)" ] || { echo "Please set SBIN_DIR."; OK=false; }; } && \ - { [ -n "$(MAN_DIR)" ] || { echo "Please set MAN_DIR."; OK=false; }; } && $$OK - - mkdir -p $(TARGET_DIR)/sbin - mkdir -p $(SBIN_DIR) - mkdir -p $(MAN_DIR) - -$(foreach XML,$(USAGES_XML),$(eval $(call usage_dep, $(XML)))) - -# Note that all targets which depend on clean must have clean in their -# name. Also any target that doesn't depend on clean should not have -# clean in its name, unless you know that you don't need any of the -# automatic dependency generation for that target (eg cleandb). - -# We want to load the dep file if *any* target *doesn't* contain -# "clean" - i.e. if removing all clean-like targets leaves something - -ifeq "$(MAKECMDGOALS)" "" -TESTABLEGOALS:=$(.DEFAULT_GOAL) -else -TESTABLEGOALS:=$(MAKECMDGOALS) -endif - -ifneq "$(strip $(patsubst clean%,,$(patsubst %clean,,$(TESTABLEGOALS))))" "" --include $(DEPS_FILE) -endif - diff --git a/README.in b/README.in deleted file mode 100644 index 0e70d0e7..00000000 --- a/README.in +++ /dev/null @@ -1,10 +0,0 @@ -Please see http://www.rabbitmq.com/build-server.html for build -instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/calculate-relative b/calculate-relative deleted file mode 100755 index 3af18e8f..00000000 --- a/calculate-relative +++ /dev/null @@ -1,45 +0,0 @@ -#!/usr/bin/env python -# -# relpath.py -# R.Barran 30/08/2004 -# Retrieved from http://code.activestate.com/recipes/302594/ - -import os -import sys - -def relpath(target, base=os.curdir): - """ - Return a relative path to the target from either the current dir or an optional base dir. - Base can be a directory specified either as absolute or relative to current dir. - """ - - if not os.path.exists(target): - raise OSError, 'Target does not exist: '+target - - if not os.path.isdir(base): - raise OSError, 'Base is not a directory or does not exist: '+base - - base_list = (os.path.abspath(base)).split(os.sep) - target_list = (os.path.abspath(target)).split(os.sep) - - # On the windows platform the target may be on a completely different drive from the base. - if os.name in ['nt','dos','os2'] and base_list[0] <> target_list[0]: - raise OSError, 'Target is on a different drive to base. Target: '+target_list[0].upper()+', base: '+base_list[0].upper() - - # Starting from the filepath root, work out how much of the filepath is - # shared by base and target. - for i in range(min(len(base_list), len(target_list))): - if base_list[i] <> target_list[i]: break - else: - # If we broke out of the loop, i is pointing to the first differing path elements. - # If we didn't break out of the loop, i is pointing to identical path elements. - # Increment i so that in all cases it points to the first differing path elements. - i+=1 - - rel_list = [os.pardir] * (len(base_list)-i) + target_list[i:] - if (len(rel_list) == 0): - return "." - return os.path.join(*rel_list) - -if __name__ == "__main__": - print(relpath(sys.argv[1], sys.argv[2])) diff --git a/codegen.py b/codegen.py deleted file mode 100644 index 8cd9dab8..00000000 --- a/codegen.py +++ /dev/null @@ -1,493 +0,0 @@ -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -from __future__ import nested_scopes - -import sys -sys.path.append("../rabbitmq-codegen") # in case we're next to an experimental revision -sys.path.append("codegen") # in case we're building from a distribution package - -from amqp_codegen import * -import string -import re - -erlangTypeMap = { - 'octet': 'octet', - 'shortstr': 'shortstr', - 'longstr': 'longstr', - 'short': 'shortint', - 'long': 'longint', - 'longlong': 'longlongint', - 'bit': 'bit', - 'table': 'table', - 'timestamp': 'timestamp', -} - -# Coming up with a proper encoding of AMQP tables in JSON is too much -# hassle at this stage. Given that the only default value we are -# interested in is for the empty table, we only support that. -def convertTable(d): - if len(d) == 0: - return "[]" - else: raise 'Non-empty table defaults not supported', d - -erlangDefaultValueTypeConvMap = { - bool : lambda x: str(x).lower(), - str : lambda x: "<<\"" + x + "\">>", - int : lambda x: str(x), - float : lambda x: str(x), - dict: convertTable, - unicode: lambda x: "<<\"" + x.encode("utf-8") + "\">>" -} - -def erlangize(s): - s = s.replace('-', '_') - s = s.replace(' ', '_') - return s - -AmqpMethod.erlangName = lambda m: "'" + erlangize(m.klass.name) + '.' + erlangize(m.name) + "'" - -AmqpClass.erlangName = lambda c: "'" + erlangize(c.name) + "'" - -def erlangConstantName(s): - return '_'.join(re.split('[- ]', s.upper())) - -class PackedMethodBitField: - def __init__(self, index): - self.index = index - self.domain = 'bit' - self.contents = [] - - def extend(self, f): - self.contents.append(f) - - def count(self): - return len(self.contents) - - def full(self): - return self.count() == 8 - -def multiLineFormat(things, prologue, separator, lineSeparator, epilogue, thingsPerLine = 4): - r = [prologue] - i = 0 - for t in things: - if i != 0: - if i % thingsPerLine == 0: - r += [lineSeparator] - else: - r += [separator] - r += [t] - i += 1 - r += [epilogue] - return "".join(r) - -def prettyType(typeName, subTypes, typesPerLine = 4): - """Pretty print a type signature made up of many alternative subtypes""" - sTs = multiLineFormat(subTypes, - "( ", " | ", "\n | ", " )", - thingsPerLine = typesPerLine) - return "-type(%s ::\n %s)." % (typeName, sTs) - -def printFileHeader(): - print """%% Autogenerated code. Do not edit. -%% -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%%""" - -def genErl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldTypeList(fields): - return '[' + ', '.join([erlType(f.domain) for f in fields]) + ']' - - def fieldNameList(fields): - return '[' + ', '.join([erlangize(f.name) for f in fields]) + ']' - - def fieldTempList(fields): - return '[' + ', '.join(['F' + str(f.index) for f in fields]) + ']' - - def fieldMapList(fields): - return ', '.join([erlangize(f.name) + " = F" + str(f.index) for f in fields]) - - def genLookupMethodName(m): - print "lookup_method_name({%d, %d}) -> %s;" % (m.klass.index, m.index, m.erlangName()) - - def genLookupClassName(c): - print "lookup_class_name(%d) -> %s;" % (c.index, c.erlangName()) - - def genMethodId(m): - print "method_id(%s) -> {%d, %d};" % (m.erlangName(), m.klass.index, m.index) - - def genMethodHasContent(m): - print "method_has_content(%s) -> %s;" % (m.erlangName(), str(m.hasContent).lower()) - - def genMethodIsSynchronous(m): - hasNoWait = "nowait" in fieldNameList(m.arguments) - if m.isSynchronous and hasNoWait: - print "is_method_synchronous(#%s{nowait = NoWait}) -> not(NoWait);" % (m.erlangName()) - else: - print "is_method_synchronous(#%s{}) -> %s;" % (m.erlangName(), str(m.isSynchronous).lower()) - - def genMethodFieldTypes(m): - """Not currently used - may be useful in future?""" - print "method_fieldtypes(%s) -> %s;" % (m.erlangName(), fieldTypeList(m.arguments)) - - def genMethodFieldNames(m): - print "method_fieldnames(%s) -> %s;" % (m.erlangName(), fieldNameList(m.arguments)) - - def packMethodFields(fields): - packed = [] - bitfield = None - for f in fields: - if erlType(f.domain) == 'bit': - if not(bitfield) or bitfield.full(): - bitfield = PackedMethodBitField(f.index) - packed.append(bitfield) - bitfield.extend(f) - else: - bitfield = None - packed.append(f) - return packed - - def methodFieldFragment(f): - type = erlType(f.domain) - p = 'F' + str(f.index) - if type == 'shortstr': - return p+'Len:8/unsigned, '+p+':'+p+'Len/binary' - elif type == 'longstr': - return p+'Len:32/unsigned, '+p+':'+p+'Len/binary' - elif type == 'octet': - return p+':8/unsigned' - elif type == 'shortint': - return p+':16/unsigned' - elif type == 'longint': - return p+':32/unsigned' - elif type == 'longlongint': - return p+':64/unsigned' - elif type == 'timestamp': - return p+':64/unsigned' - elif type == 'bit': - return p+'Bits:8' - elif type == 'table': - return p+'Len:32/unsigned, '+p+'Tab:'+p+'Len/binary' - - def genFieldPostprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - for index in range(f.count()): - print " F%d = ((F%dBits band %d) /= 0)," % \ - (f.index + index, - f.index, - 1 << index) - elif type == 'table': - print " F%d = rabbit_binary_parser:parse_table(F%dTab)," % \ - (f.index, f.index) - else: - pass - - def genMethodRecord(m): - print "method_record(%s) -> #%s{};" % (m.erlangName(), m.erlangName()) - - def genDecodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - binaryPattern = ', '.join([methodFieldFragment(f) for f in packedFields]) - if binaryPattern: - restSeparator = ', ' - else: - restSeparator = '' - recordConstructorExpr = '#%s{%s}' % (m.erlangName(), fieldMapList(m.arguments)) - print "decode_method_fields(%s, <<%s>>) ->" % (m.erlangName(), binaryPattern) - genFieldPostprocessing(packedFields) - print " %s;" % (recordConstructorExpr,) - - def genDecodeProperties(c): - print "decode_properties(%d, PropBin) ->" % (c.index) - print " %s = rabbit_binary_parser:parse_properties(%s, PropBin)," % \ - (fieldTempList(c.fields), fieldTypeList(c.fields)) - print " #'P_%s'{%s};" % (erlangize(c.name), fieldMapList(c.fields)) - - def genFieldPreprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - print " F%dBits = (%s)," % \ - (f.index, - ' bor '.join(['(bitvalue(F%d) bsl %d)' % (x.index, x.index - f.index) - for x in f.contents])) - elif type == 'table': - print " F%dTab = rabbit_binary_generator:generate_table(F%d)," % (f.index, f.index) - print " F%dLen = size(F%dTab)," % (f.index, f.index) - elif type == 'shortstr': - print " F%dLen = shortstr_size(F%d)," % (f.index, f.index) - elif type == 'longstr': - print " F%dLen = size(F%d)," % (f.index, f.index) - else: - pass - - def genEncodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - print "encode_method_fields(#%s{%s}) ->" % (m.erlangName(), fieldMapList(m.arguments)) - genFieldPreprocessing(packedFields) - print " <<%s>>;" % (', '.join([methodFieldFragment(f) for f in packedFields])) - - def genEncodeProperties(c): - print "encode_properties(#'P_%s'{%s}) ->" % (erlangize(c.name), fieldMapList(c.fields)) - print " rabbit_binary_generator:encode_properties(%s, %s);" % \ - (fieldTypeList(c.fields), fieldTempList(c.fields)) - - def messageConstantClass(cls): - # We do this because 0.8 uses "soft error" and 8.1 uses "soft-error". - return erlangConstantName(cls) - - def genLookupException(c,v,cls): - mCls = messageConstantClass(cls) - if mCls == 'SOFT_ERROR': genLookupException1(c,'false') - elif mCls == 'HARD_ERROR': genLookupException1(c, 'true') - elif mCls == '': pass - else: raise 'Unknown constant class', cls - - def genLookupException1(c,hardErrorBoolStr): - n = erlangConstantName(c) - print 'lookup_amqp_exception(%s) -> {%s, ?%s, <<"%s">>};' % \ - (n.lower(), hardErrorBoolStr, n, n) - - def genAmqpException(c,v,cls): - n = erlangConstantName(c) - print 'amqp_exception(?%s) -> %s;' % \ - (n, n.lower()) - - methods = spec.allMethods() - - printFileHeader() - module = "rabbit_framing_amqp_%d_%d" % (spec.major, spec.minor) - if spec.revision != 0: - module = "%s_%d" % (module, spec.revision) - if module == "rabbit_framing_amqp_8_0": - module = "rabbit_framing_amqp_0_8" - print "-module(%s)." % module - print """-include("rabbit_framing.hrl"). - --export([version/0]). --export([lookup_method_name/1]). --export([lookup_class_name/1]). - --export([method_id/1]). --export([method_has_content/1]). --export([is_method_synchronous/1]). --export([method_record/1]). --export([method_fieldnames/1]). --export([decode_method_fields/2]). --export([decode_properties/2]). --export([encode_method_fields/1]). --export([encode_properties/1]). --export([lookup_amqp_exception/1]). --export([amqp_exception/1]). - -""" - print "%% Various types" - print "-ifdef(use_specs)." - - print """-export_type([amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(amqp_field_type() :: - 'longstr' | 'signedint' | 'decimal' | 'timestamp' | - 'table' | 'byte' | 'double' | 'float' | 'long' | - 'short' | 'bool' | 'binary' | 'void' | 'array'). --type(amqp_property_type() :: - 'shortstr' | 'longstr' | 'octet' | 'shortint' | 'longint' | - 'longlongint' | 'timestamp' | 'bit' | 'table'). - --type(amqp_table() :: [{binary(), amqp_field_type(), amqp_value()}]). --type(amqp_array() :: [{amqp_field_type(), amqp_value()}]). --type(amqp_value() :: binary() | % longstr - integer() | % signedint - {non_neg_integer(), non_neg_integer()} | % decimal - amqp_table() | - amqp_array() | - byte() | % byte - float() | % double - integer() | % long - integer() | % short - boolean() | % bool - binary() | % binary - 'undefined' | % void - non_neg_integer() % timestamp - ). -""" - - print prettyType("amqp_method_name()", - [m.erlangName() for m in methods]) - print prettyType("amqp_method()", - ["{%s, %s}" % (m.klass.index, m.index) for m in methods], - 6) - print prettyType("amqp_method_record()", - ["#%s{}" % (m.erlangName()) for m in methods]) - fieldNames = set() - for m in methods: - fieldNames.update(m.arguments) - fieldNames = [erlangize(f.name) for f in fieldNames] - print prettyType("amqp_method_field_name()", - fieldNames) - print prettyType("amqp_property_record()", - ["#'P_%s'{}" % erlangize(c.name) for c in spec.allClasses()]) - print prettyType("amqp_exception()", - ["'%s'" % erlangConstantName(c).lower() for (c, v, cls) in spec.constants]) - print prettyType("amqp_exception_code()", - ["%i" % v for (c, v, cls) in spec.constants]) - classIds = set() - for m in spec.allMethods(): - classIds.add(m.klass.index) - print prettyType("amqp_class_id()", - ["%i" % ci for ci in classIds]) - print "-endif. % use_specs" - - print """ -%% Method signatures --ifdef(use_specs). --spec(version/0 :: () -> {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --spec(lookup_method_name/1 :: (amqp_method()) -> amqp_method_name()). --spec(method_id/1 :: (amqp_method_name()) -> amqp_method()). --spec(method_has_content/1 :: (amqp_method_name()) -> boolean()). --spec(is_method_synchronous/1 :: (amqp_method_record()) -> boolean()). --spec(method_record/1 :: (amqp_method_name()) -> amqp_method_record()). --spec(method_fieldnames/1 :: (amqp_method_name()) -> [amqp_method_field_name()]). --spec(decode_method_fields/2 :: - (amqp_method_name(), binary()) -> amqp_method_record() | rabbit_types:connection_exit()). --spec(decode_properties/2 :: (non_neg_integer(), binary()) -> amqp_property_record()). --spec(encode_method_fields/1 :: (amqp_method_record()) -> binary()). --spec(encode_properties/1 :: (amqp_property_record()) -> binary()). --spec(lookup_amqp_exception/1 :: (amqp_exception()) -> {boolean(), amqp_exception_code(), binary()}). --spec(amqp_exception/1 :: (amqp_exception_code()) -> amqp_exception()). --endif. % use_specs - -bitvalue(true) -> 1; -bitvalue(false) -> 0; -bitvalue(undefined) -> 0. - -shortstr_size(S) -> - case size(S) of - Len when Len =< 255 -> Len; - _ -> exit(method_field_shortstr_overflow) - end. -""" - version = "{%d, %d, %d}" % (spec.major, spec.minor, spec.revision) - if version == '{8, 0, 0}': version = '{0, 8, 0}' - print "version() -> %s." % (version) - - for m in methods: genLookupMethodName(m) - print "lookup_method_name({_ClassId, _MethodId} = Id) -> exit({unknown_method_id, Id})." - - for c in spec.allClasses(): genLookupClassName(c) - print "lookup_class_name(ClassId) -> exit({unknown_class_id, ClassId})." - - for m in methods: genMethodId(m) - print "method_id(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodHasContent(m) - print "method_has_content(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodIsSynchronous(m) - print "is_method_synchronous(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodRecord(m) - print "method_record(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodFieldNames(m) - print "method_fieldnames(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genDecodeMethodFields(m) - print "decode_method_fields(Name, BinaryFields) ->" - print " rabbit_misc:frame_error(Name, BinaryFields)." - - for c in spec.allClasses(): genDecodeProperties(c) - print "decode_properties(ClassId, _BinaryFields) -> exit({unknown_class_id, ClassId})." - - for m in methods: genEncodeMethodFields(m) - print "encode_method_fields(Record) -> exit({unknown_method_name, element(1, Record)})." - - for c in spec.allClasses(): genEncodeProperties(c) - print "encode_properties(Record) -> exit({unknown_properties_record, Record})." - - for (c,v,cls) in spec.constants: genLookupException(c,v,cls) - print "lookup_amqp_exception(Code) ->" - print " rabbit_log:warning(\"Unknown AMQP error code '~p'~n\", [Code])," - print " {true, ?INTERNAL_ERROR, <<\"INTERNAL_ERROR\">>}." - - for(c,v,cls) in spec.constants: genAmqpException(c,v,cls) - print "amqp_exception(_Code) -> undefined." - -def genHrl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldNameList(fields): - return ', '.join([erlangize(f.name) for f in fields]) - - def fieldNameListDefaults(fields): - def fillField(field): - result = erlangize(f.name) - if field.defaultvalue != None: - conv_fn = erlangDefaultValueTypeConvMap[type(field.defaultvalue)] - result += ' = ' + conv_fn(field.defaultvalue) - return result - return ', '.join([fillField(f) for f in fields]) - - methods = spec.allMethods() - - printFileHeader() - print "-define(PROTOCOL_PORT, %d)." % (spec.port) - - for (c,v,cls) in spec.constants: - print "-define(%s, %s)." % (erlangConstantName(c), v) - - print "%% Method field records." - for m in methods: - print "-record(%s, {%s})." % (m.erlangName(), fieldNameListDefaults(m.arguments)) - - print "%% Class property records." - for c in spec.allClasses(): - print "-record('P_%s', {%s})." % (erlangize(c.name), fieldNameList(c.fields)) - - -def generateErl(specPath): - genErl(AmqpSpec(specPath)) - -def generateHrl(specPath): - genHrl(AmqpSpec(specPath)) - -if __name__ == "__main__": - do_main_dict({"header": generateHrl, - "body": generateErl}) - diff --git a/docs/examples-to-end.xsl b/docs/examples-to-end.xsl deleted file mode 100644 index d9686ada..00000000 --- a/docs/examples-to-end.xsl +++ /dev/null @@ -1,94 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - Examples - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [] - - - - {} - - - - - - - - diff --git a/docs/html-to-website-xml.xsl b/docs/html-to-website-xml.xsl deleted file mode 100644 index 4bfcf6ca..00000000 --- a/docs/html-to-website-xml.xsl +++ /dev/null @@ -1,98 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - -type="text/xml" href="page.xsl" - - - <xsl:value-of select="document($original)/refentry/refnamediv/refname"/><xsl:if test="document($original)/refentry/refmeta/manvolnum">(<xsl:value-of select="document($original)/refentry/refmeta/manvolnum"/>)</xsl:if> manual page - 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- - - - diff --git a/docs/rabbitmq-env.conf.5.xml b/docs/rabbitmq-env.conf.5.xml deleted file mode 100644 index c887596c..00000000 --- a/docs/rabbitmq-env.conf.5.xml +++ /dev/null @@ -1,83 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-env.conf - 5 - RabbitMQ Server - - - - rabbitmq-env.conf - default settings for RabbitMQ AMQP server - - - - Description - -/etc/rabbitmq/rabbitmq-env.conf contains variable settings that override the -defaults built in to the RabbitMQ startup scripts. - - -The file is interpreted by the system shell, and so should consist of -a sequence of shell environment variable definitions. Normal shell -syntax is permitted (since the file is sourced using the shell "." -operator), including line comments starting with "#". - - -In order of preference, the startup scripts get their values from the -environment, from /etc/rabbitmq/rabbitmq-env.conf and finally from the -built-in default values. For example, for the RABBITMQ_NODENAME -setting, - - - RABBITMQ_NODENAME - - -from the environment is checked first. If it is absent or equal to the -empty string, then - - - NODENAME - - -from /etc/rabbitmq/rabbitmq-env.conf is checked. If it is also absent -or set equal to the empty string then the default value from the -startup script is used. - - -The variable names in /etc/rabbitmq/rabbitmq-env.conf are always equal to the -environment variable names, with the RABBITMQ_ prefix removed: -RABBITMQ_NODE_PORT from the environment becomes NODE_PORT in the -/etc/rabbitmq/rabbitmq-env.conf file, etc. - - For example: - -# I am a complete /etc/rabbitmq/rabbitmq-env.conf file. -# Comment lines start with a hash character. -# This is a /bin/sh script file - use ordinary envt var syntax -NODENAME=hare - - - This is an example of a complete - /etc/rabbitmq/rabbitmq-env.conf file that overrides the default Erlang - node name from "rabbit" to "hare". - - - - - - See also - - rabbitmq-server1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-server.1.xml b/docs/rabbitmq-server.1.xml deleted file mode 100644 index ca63927c..00000000 --- a/docs/rabbitmq-server.1.xml +++ /dev/null @@ -1,131 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-server - 1 - RabbitMQ Server - - - - rabbitmq-server - start RabbitMQ AMQP server - - - - - rabbitmq-server - -detached - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-server in the foreground displays a banner message, -and reports on progress in the startup sequence, concluding with the -message "broker running", indicating that the RabbitMQ broker has been -started successfully. To shut down the server, just terminate the -process or use rabbitmqctl(1). - - - - - Environment - - - - RABBITMQ_MNESIA_BASE - - -Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory where -Mnesia database files should be placed. - - - - - - RABBITMQ_LOG_BASE - - -Defaults to /var/log/rabbitmq. Log files generated by the server will -be placed in this directory. - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - - - - Options - - - -detached - - - start the server process in the background - - For example: - rabbitmq-server -detached - - Runs RabbitMQ AMQP server in the background. - - - - - - - - See also - - rabbitmq-env.conf5 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-service.xml b/docs/rabbitmq-service.xml deleted file mode 100644 index 3368960b..00000000 --- a/docs/rabbitmq-service.xml +++ /dev/null @@ -1,217 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-service.bat - RabbitMQ Server - - - - rabbitmq-service.bat - manage RabbitMQ AMQP service - - - - - rabbitmq-service.bat - command - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-service allows the RabbitMQ broker to be run as a -service on NT/2000/2003/XP/Vista® environments. The RabbitMQ broker -service can be started and stopped using the Windows® services -applet. - - -By default the service will run in the authentication context of the -local system account. It is therefore necessary to synchronise Erlang -cookies between the local system account (typically -C:\WINDOWS\.erlang.cookie and the account that will be used to -run rabbitmqctl. - - - - - Commands - - - - help - - -Display usage information. - - - - - - install - - -Install the service. The service will not be started. -Subsequent invocations will update the service parameters if -relevant environment variables were modified. - - - - - - remove - - -Remove the service. If the service is running then it will -automatically be stopped before being removed. No files will be -deleted as a consequence and rabbitmq-server will remain operable. - - - - - - start - - -Start the service. The service must have been correctly installed -beforehand. - - - - - - stop - - -Stop the service. The service must be running for this command to -have any effect. - - - - - - disable - - -Disable the service. This is the equivalent of setting the startup -type to Disabled using the service control panel. - - - - - - enable - - -Enable the service. This is the equivalent of setting the startup -type to Automatic using the service control panel. - - - - - - - - Environment - - - - RABBITMQ_SERVICENAME - - -Defaults to RabbitMQ. - - - - - - RABBITMQ_BASE - - -Defaults to the application data directory of the current user. -This is the location of log and database directories. - - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - ERLANG_SERVICE_MANAGER_PATH - - -Defaults to C:\Program Files\erl5.5.5\erts-5.5.5\bin -(or C:\Program Files (x86)\erl5.5.5\erts-5.5.5\bin for 64-bit -environments). This is the installation location of the Erlang service -manager. - - - - - - RABBITMQ_CONSOLE_LOG - - -Set this varable to new or reuse to have the console -output from the server redirected to a file named SERVICENAME.debug -in the application data directory of the user that installed the service. -Under Vista this will be C:\Users\AppData\username\SERVICENAME. -Under previous versions of Windows this will be -C:\Documents and Settings\username\Application Data\SERVICENAME. -If RABBITMQ_CONSOLE_LOG is set to new then a new file will be -created each time the service starts. If RABBITMQ_CONSOLE_LOG is -set to reuse then the file will be overwritten each time the -service starts. The default behaviour when RABBITMQ_CONSOLE_LOG is -not set or set to a value other than new or reuse is to discard -the server output. - - - - - - diff --git a/docs/rabbitmqctl.1.xml b/docs/rabbitmqctl.1.xml deleted file mode 100644 index 3550e5ea..00000000 --- a/docs/rabbitmqctl.1.xml +++ /dev/null @@ -1,1269 +0,0 @@ - - - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmqctl - 1 - RabbitMQ Service - - - - rabbitmqctl - command line tool for managing a RabbitMQ broker - - - - - rabbitmqctl - -n node - -q - command - command options - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. - - - rabbitmqctl is a command line tool for managing a - RabbitMQ broker. It performs all actions by connecting to one of the - broker's nodes. - - - - - Options - - - -n node - - - Default node is "rabbit@server", where server is the local host. On - a host named "server.example.com", the node name of the RabbitMQ - Erlang node will usually be rabbit@server (unless RABBITMQ_NODENAME - has been set to some non-default value at broker startup time). The - output of hostname -s is usually the correct suffix to use after the - "@" sign. See rabbitmq-server(1) for details of configuring the - RabbitMQ broker. - - - - - -q - - - Quiet output mode is selected with the "-q" flag. Informational - messages are suppressed when quiet mode is in effect. - - - - - - - - Commands - - - Application and Cluster Management - - - - stop - - - Stops the Erlang node on which RabbitMQ is running. To - restart the node follow the instructions for Running - the Server in the installation - guide. - - For example: - rabbitmqctl stop - - This command instructs the RabbitMQ node to terminate. - - - - - - stop_app - - - Stops the RabbitMQ application, leaving the Erlang node - running. - - - This command is typically run prior to performing other - management actions that require the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl stop_app - - This command instructs the RabbitMQ node to stop the - RabbitMQ application. - - - - - - start_app - - - Starts the RabbitMQ application. - - - This command is typically run after performing other - management actions that required the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl start_app - - This command instructs the RabbitMQ node to start the - RabbitMQ application. - - - - - - wait - - - Wait for the RabbitMQ application to start. - - - This command will wait for the RabbitMQ application to - start at the node. As long as the Erlang node is up but - the RabbitMQ application is down it will wait - indefinitely. If the node itself goes down, or takes - more than five seconds to come up, it will fail. - - For example: - rabbitmqctl wait - - This command will return when the RabbitMQ node has - started up. - - - - - - status - - - Displays various information about the RabbitMQ broker, - such as whether the RabbitMQ application on the current - node, its version number, what nodes are part of the - broker, which of these are running. - - For example: - rabbitmqctl status - - This command displays information about the RabbitMQ - broker. - - - - - - reset - - - Return a RabbitMQ node to its virgin state. - - - Removes the node from any cluster it belongs to, removes - all data from the management database, such as configured - users and vhosts, and deletes all persistent - messages. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl reset - - This command resets the RabbitMQ node. - - - - - - force_reset - - - Forcefully return a RabbitMQ node to its virgin state. - - - The force_reset command differs from - reset in that it resets the node - unconditionally, regardless of the current management - database state and cluster configuration. It should only - be used as a last resort if the database or cluster - configuration has been corrupted. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl force_reset - - This command resets the RabbitMQ node. - - - - - - rotate_logs suffix - - - Instruct the RabbitMQ node to rotate the log files. - - - The RabbitMQ broker will attempt to append the current contents - of the log file to the file with name composed of the original - name and the suffix. - It will create a new file if such a file does not already exist. - When no is specified, the empty log file is - simply created at the original location; no rotation takes place. - - - When an error occurs while appending the contents of the old log - file, the operation behaves in the same way as if no was - specified. - - - This command might be helpful when you are e.g. writing your - own logrotate script and you do not want to restart the RabbitMQ - node. - - For example: - rabbitmqctl rotate_logs .1 - - This command instructs the RabbitMQ node to append the current content - of the log files to the files with names consisting of the original logs' - names and ".1" suffix, e.g. rabbit.log.1. Finally, the old log files are reopened. - - - - - - - - Cluster management - - - - cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. To cluster with currently offline nodes, - use force_cluster. - - - Cluster nodes can be of two types: disk or ram. Disk nodes - replicate data in ram and on disk, thus providing - redundancy in the event of node failure and recovery from - global events such as power failure across all nodes. Ram - nodes replicate data in ram only and are mainly used for - scalability. A cluster must always have at least one disk node. - - - If the current node is to become a disk node it needs to - appear in the cluster node list. Otherwise it becomes a - ram node. If the node list is empty or only contains the - current node then the node becomes a standalone, - i.e. non-clustered, (disk) node. - - - After executing the cluster command, whenever - the RabbitMQ application is started on the current node it - will attempt to connect to the specified nodes, thus - becoming an active node in the cluster comprising those - nodes (and possibly others). - - - The list of nodes does not have to contain all the - cluster's nodes; a subset is sufficient. Also, clustering - generally succeeds as long as at least one of the - specified nodes is active. Hence adjustments to the list - are only necessary if the cluster configuration is to be - altered radically. - - - For this command to succeed the RabbitMQ application must - have been stopped, e.g. with stop_app. Furthermore, - turning a standalone node into a clustered node requires - the node be reset first, - in order to avoid accidental destruction of data with the - cluster command. - - - For more details see the clustering guide. - - For example: - rabbitmqctl cluster rabbit@tanto hare@elena - - This command instructs the RabbitMQ node to join the - cluster with nodes rabbit@tanto and - hare@elena. If the node is one of these then - it becomes a disk node, otherwise a ram node. - - - - - force_cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. This will succeed even if the specified nodes - are offline. For a more detailed description, see - cluster. - - - Note that this variant of the cluster command just - ignores the current status of the specified nodes. - Clustering may still fail for a variety of other - reasons. - - - - - - - - Closing individual connections - - - - close_connection connectionpid explanation - - - - connectionpid - Id of the Erlang process associated with the connection to close. - - - explanation - Explanation string. - - - - Instruct the broker to close the connection associated - with the Erlang process id (see also the - list_connections - command), passing the string to the - connected client as part of the AMQP connection shutdown - protocol. - - For example: - rabbitmqctl close_connection "<rabbit@tanto.4262.0>" "go away" - - This command instructs the RabbitMQ broker to close the - connection associated with the Erlang process - id <rabbit@tanto.4262.0>, passing the - explanation go away to the connected client. - - - - - - - - User management - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Users from any alternative - authentication backend will not be visible - to rabbitmqctl. - - - - add_user username password - - - - username - The name of the user to create. - - - password - The password the created user will use to log in to the broker. - - - For example: - rabbitmqctl add_user tonyg changeit - - This command instructs the RabbitMQ broker to create a - (non-administrative) user named tonyg with - (initial) password - changeit. - - - - - - delete_user username - - - - username - The name of the user to delete. - - - For example: - rabbitmqctl delete_user tonyg - - This command instructs the RabbitMQ broker to delete the - user named tonyg. - - - - - - change_password username newpassword - - - - username - The name of the user whose password is to be changed. - - - newpassword - The new password for the user. - - - For example: - rabbitmqctl change_password tonyg newpass - - This command instructs the RabbitMQ broker to change the - password for the user named tonyg to - newpass. - - - - - - clear_password username - - - - username - The name of the user whose password is to be cleared. - - - For example: - rabbitmqctl clear_password tonyg - - This command instructs the RabbitMQ broker to clear the - password for the user named - tonyg. This user now cannot log in with a password (but may be able to through e.g. SASL EXTERNAL if configured). - - - - - - set_admin username - - - - username - The name of the user whose administrative - status is to be set. - - - For example: - rabbitmqctl set_admin tonyg - - This command instructs the RabbitMQ broker to ensure the user - named tonyg is an administrator. This has no - effect when the user logs in via AMQP, but can be used to permit - the user to manage users, virtual hosts and permissions when the - user logs in via some other means (for example with the - management plugin). - - - - - - clear_admin username - - - - username - The name of the user whose administrative - status is to be cleared. - - - For example: - rabbitmqctl clear_admin tonyg - - This command instructs the RabbitMQ broker to ensure the user - named tonyg is not an administrator. - - - - - - list_users - - Lists users - For example: - rabbitmqctl list_users - - This command instructs the RabbitMQ broker to list all - users. Each result row will contain the user name and - the administrator status of the user, in that order. - - - - - - - - Access control - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Permissions for users from any - alternative authorisation backend will not be visible - to rabbitmqctl. - - - - add_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to create. - - - - Creates a virtual host. - - For example: - rabbitmqctl add_vhost test - - This command instructs the RabbitMQ broker to create a new - virtual host called test. - - - - - - delete_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to delete. - - - - Deletes a virtual host. - - - Deleting a virtual host deletes all its exchanges, - queues, user mappings and associated permissions. - - For example: - rabbitmqctl delete_vhost test - - This command instructs the RabbitMQ broker to delete the - virtual host called test. - - - - - - list_vhosts - - - Lists virtual hosts. - - For example: - rabbitmqctl list_vhosts - - This command instructs the RabbitMQ broker to list all - virtual hosts. - - - - - - set_permissions -p vhostpath user conf write read - - - - vhostpath - The name of the virtual host to which to grant the user access, defaulting to /. - - - user - The name of the user to grant access to the specified virtual host. - - - conf - A regular expression matching resource names for which the user is granted configure permissions. - - - write - A regular expression matching resource names for which the user is granted write permissions. - - - read - A regular expression matching resource names for which the user is granted read permissions. - - - - Sets user permissions. - - For example: - rabbitmqctl set_permissions -p /myvhost tonyg "^tonyg-.*" ".*" ".*" - - This command instructs the RabbitMQ broker to grant the - user named tonyg access to the virtual host - called /myvhost, with configure permissions - on all resources whose names starts with "tonyg-", and - write and read permissions on all resources. - - - - - - clear_permissions -p vhostpath username - - - - vhostpath - The name of the virtual host to which to deny the user access, defaulting to /. - - - username - The name of the user to deny access to the specified virtual host. - - - - Sets user permissions. - - For example: - rabbitmqctl clear_permissions -p /myvhost tonyg - - This command instructs the RabbitMQ broker to deny the - user named tonyg access to the virtual host - called /myvhost. - - - - - - list_permissions -p vhostpath - - - - vhostpath - The name of the virtual host for which to list the users that have been granted access to it, and their permissions. Defaults to /. - - - - Lists permissions in a virtual host. - - For example: - rabbitmqctl list_permissions -p /myvhost - - This command instructs the RabbitMQ broker to list all - the users which have been granted access to the virtual - host called /myvhost, and the - permissions they have for operations on resources in - that virtual host. Note that an empty string means no - permissions granted. - - - - - - list_user_permissions -p vhostpath username - - - - username - The name of the user for which to list the permissions. - - - - Lists user permissions. - - For example: - rabbitmqctl list_user_permissions tonyg - - This command instructs the RabbitMQ broker to list all the - virtual hosts to which the user named tonyg - has been granted access, and the permissions the user has - for operations on resources in these virtual hosts. - - - - - - - - Server Status - - The server status queries interrogate the server and return a list of - results with tab-delimited columns. Some queries (list_queues, - list_exchanges, list_bindings, and - list_consumers) accept an - optional vhost parameter. This parameter, if present, must be - specified immediately after the query. - - - The list_queues, list_exchanges and list_bindings commands accept an - optional virtual host parameter for which to display results. The - default value is "/". - - - - - list_queues -p vhostpath queueinfoitem ... - - - Returns queue details. Queue details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The queueinfoitem parameter is used to indicate which queue - information items to include in the results. The column order in the - results will match the order of the parameters. - queueinfoitem can take any value from the list - that follows: - - - - name - The name of the queue with non-ASCII characters escaped as in C. - - - durable - Whether or not the queue survives server restarts. - - - auto_delete - Whether the queue will be deleted automatically when no longer used. - - - arguments - Queue arguments. - - - pid - Id of the Erlang process associated with the queue. - - - owner_pid - Id of the Erlang process representing the connection - which is the exclusive owner of the queue. Empty if the - queue is non-exclusive. - - - exclusive_consumer_pid - Id of the Erlang process representing the channel of the - exclusive consumer subscribed to this queue. Empty if - there is no exclusive consumer. - - - exclusive_consumer_tag - Consumer tag of the exclusive consumer subscribed to - this queue. Empty if there is no exclusive consumer. - - - messages_ready - Number of messages ready to be delivered to clients. - - - messages_unacknowledged - Number of messages delivered to clients but not yet acknowledged. - - - messages - Sum of ready and unacknowledged messages - (queue depth). - - - consumers - Number of consumers. - - - memory - Bytes of memory consumed by the Erlang process associated with the - queue, including stack, heap and internal structures. - - - - If no queueinfoitems are specified then queue name and depth are - displayed. - - - For example: - - rabbitmqctl list_queues -p /myvhost messages consumers - - This command displays the depth and number of consumers for each - queue of the virtual host named /myvhost. - - - - - - list_exchanges -p vhostpath exchangeinfoitem ... - - - Returns exchange details. Exchange details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The exchangeinfoitem parameter is used to indicate which - exchange information items to include in the results. The column order in the - results will match the order of the parameters. - exchangeinfoitem can take any value from the list - that follows: - - - - name - The name of the exchange with non-ASCII characters escaped as in C. - - - type - The exchange type (one of [direct, - topic, headers, - fanout]). - - - durable - Whether or not the exchange survives server restarts. - - - auto_delete - Whether the exchange will be deleted automatically when no longer used. - - - internal - Whether the exchange is internal, i.e. cannot be directly published to by a client. - - - arguments - Exchange arguments. - - - - If no exchangeinfoitems are specified then - exchange name and type are displayed. - - - For example: - - rabbitmqctl list_exchanges -p /myvhost name type - - This command displays the name and type for each - exchange of the virtual host named /myvhost. - - - - - - list_bindings -p vhostpath bindinginfoitem ... - - - Returns binding details. By default the bindings for - the / virtual host are returned. The - "-p" flag can be used to override this default. - - - The bindinginfoitem parameter is used - to indicate which binding information items to include - in the results. The column order in the results will - match the order of the parameters. - bindinginfoitem can take any value - from the list that follows: - - - - source_name - The name of the source of messages to - which the binding is attached. With non-ASCII - characters escaped as in C. - - - source_kind - The kind of the source of messages to - which the binding is attached. Currently always - queue. With non-ASCII characters escaped as in - C. - - - destination_name - The name of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - destination_kind - The kind of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - routing_key - The binding's routing key, with - non-ASCII characters escaped as in C. - - - arguments - The binding's arguments. - - - - If no bindinginfoitems are specified then - all above items are displayed. - - - For example: - - rabbitmqctl list_bindings -p /myvhost exchange_name queue_name - - This command displays the exchange name and queue name - of the bindings in the virtual host - named /myvhost. - - - - - - list_connections connectioninfoitem ... - - - Returns TCP/IP connection statistics. - - - The connectioninfoitem parameter is used to indicate - which connection information items to include in the results. The - column order in the results will match the order of the parameters. - connectioninfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - address - Server IP address. - - - port - Server port. - - - peer_address - Peer address. - - - peer_port - Peer port. - - - ssl - Boolean indicating whether the - connection is secured with SSL. - - - ssl_protocol - SSL protocol - (e.g. tlsv1) - - - ssl_key_exchange - SSL key exchange algorithm - (e.g. rsa) - - - ssl_cipher - SSL cipher algorithm - (e.g. aes_256_cbc) - - - ssl_hash - SSL hash function - (e.g. sha) - - - peer_cert_subject - The subject of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_issuer - The issuer of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_validity - The period for which the peer's SSL - certificate is valid. - - - state - Connection state (one of [starting, tuning, - opening, running, closing, closed]). - - - channels - Number of channels using the connection. - - - protocol - Version of the AMQP protocol in use (currently one of {0,9,1} or {0,8,0}). Note that if a client requests an AMQP 0-9 connection, we treat it as AMQP 0-9-1. - - - auth_mechanism - SASL authentication mechanism used, such as PLAIN. - - - user - Username associated with the connection. - - - vhost - Virtual host name with non-ASCII characters escaped as in C. - - - timeout - Connection timeout. - - - frame_max - Maximum frame size (bytes). - - - client_properties - Informational properties transmitted by the client - during connection establishment. - - - recv_oct - Octets received. - - - recv_cnt - Packets received. - - - send_oct - Octets send. - - - send_cnt - Packets sent. - - - send_pend - Send queue size. - - - - If no connectioninfoitems are specified then user, peer - address, peer port and connection state are displayed. - - - - For example: - - rabbitmqctl list_connections send_pend port - - This command displays the send queue size and server port for each - connection. - - - - - - list_channels channelinfoitem ... - - - Returns information on all current channels, the logical - containers executing most AMQP commands. This includes - channels that are part of ordinary AMQP connections, and - channels created by various plug-ins and other extensions. - - - The channelinfoitem parameter is used to - indicate which channel information items to include in the - results. The column order in the results will match the - order of the parameters. - channelinfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - connection - Id of the Erlang process associated with the connection - to which the channel belongs. - - - number - The number of the channel, which uniquely identifies it within - a connection. - - - user - Username associated with the channel. - - - vhost - Virtual host in which the channel operates. - - - transactional - True if the channel is in transactional mode, false otherwise. - - - consumer_count - Number of logical AMQP consumers retrieving messages via - the channel. - - - messages_unacknowledged - Number of messages delivered via this channel but not - yet acknowledged. - - - acks_uncommitted - Number of acknowledgements received in an as yet - uncommitted transaction. - - - prefetch_count - QoS prefetch count limit in force, 0 if unlimited. - - - client_flow_blocked - True if the client issued a - channel.flow{active=false} - command, blocking the server from delivering - messages to the channel's consumers. - - - - confirm - True if the channel is in confirm mode, false otherwise. - - - messages_unconfirmed - Number of published messages not yet - confirmed. On channels not in confirm mode, this - remains 0. - - - - If no channelinfoitems are specified then pid, - user, transactional, consumer_count, and - messages_unacknowledged are assumed. - - - - For example: - - rabbitmqctl list_channels connection messages_unacknowledged - - This command displays the connection process and count - of unacknowledged messages for each channel. - - - - - - list_consumers - - - List consumers, i.e. subscriptions to a queue's message - stream. Each line printed shows, separated by tab - characters, the name of the queue subscribed to, the id of - the channel process via which the subscription was created - and is managed, the consumer tag which uniquely identifies - the subscription within a channel, and a boolean - indicating whether acknowledgements are expected for - messages delivered to this consumer. - - - The output format for "list_consumers" is a list of rows containing, - in order, the queue name, channel process id, consumer tag, and a - boolean indicating whether acknowledgements are expected from the - consumer. - - - - - - - - diff --git a/docs/remove-namespaces.xsl b/docs/remove-namespaces.xsl deleted file mode 100644 index 7f7f3c12..00000000 --- a/docs/remove-namespaces.xsl +++ /dev/null @@ -1,18 +0,0 @@ - - - - - - - - - - - - - - - diff --git a/docs/usage.xsl b/docs/usage.xsl deleted file mode 100644 index a6cebd93..00000000 --- a/docs/usage.xsl +++ /dev/null @@ -1,78 +0,0 @@ - - - - - - - - - - -%% Generated, do not edit! --module(). --export([usage/0]). -usage() -> %QUOTE%Usage: - - - - - - - - - - - - Options: - - - - - , - - - - - - - - - - - - - Commands: - - - - - - - - - -%QUOTE%. - - - -<> must be a member of the list [, ]. - - - - - - - - - -[] -<> - - diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in deleted file mode 100644 index f837684c..00000000 --- a/ebin/rabbit_app.in +++ /dev/null @@ -1,44 +0,0 @@ -{application, rabbit, %% -*- erlang -*- - [{description, "RabbitMQ"}, - {id, "RabbitMQ"}, - {vsn, "%%VSN%%"}, - {modules, []}, - {registered, [rabbit_amqqueue_sup, - rabbit_log, - rabbit_node_monitor, - rabbit_router, - rabbit_sup, - rabbit_tcp_client_sup, - rabbit_direct_client_sup]}, - {applications, [kernel, stdlib, sasl, mnesia, os_mon]}, -%% we also depend on crypto, public_key and ssl but they shouldn't be -%% in here as we don't actually want to start it - {mod, {rabbit, []}}, - {env, [{tcp_listeners, [5672]}, - {ssl_listeners, []}, - {ssl_options, []}, - {vm_memory_high_watermark, 0.4}, - {msg_store_index_module, rabbit_msg_store_ets_index}, - {backing_queue_module, rabbit_variable_queue}, - {persister_max_wrap_entries, 500}, - {persister_hibernate_after, 10000}, - {msg_store_file_size_limit, 16777216}, - {queue_index_max_journal_entries, 262144}, - {default_user, <<"guest">>}, - {default_pass, <<"guest">>}, - {default_user_is_admin, true}, - {default_vhost, <<"/">>}, - {default_permissions, [<<".*">>, <<".*">>, <<".*">>]}, - {cluster_nodes, []}, - {server_properties, []}, - {collect_statistics, none}, - {auth_mechanisms, ['PLAIN', 'AMQPLAIN']}, - {auth_backends, [rabbit_auth_backend_internal]}, - {delegate_count, 16}, - {tcp_listen_options, [binary, - {packet, raw}, - {reuseaddr, true}, - {backlog, 128}, - {nodelay, true}, - {exit_on_close, false}]} - ]}]}. diff --git a/generate_app b/generate_app deleted file mode 100644 index 576b485e..00000000 --- a/generate_app +++ /dev/null @@ -1,12 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- - -main([BeamDir, TargetFile]) -> - Modules = [list_to_atom(filename:basename(F, ".beam")) || - F <- filelib:wildcard("*.beam", BeamDir)], - {ok, {application, Application, Properties}} = io:read(''), - NewProperties = lists:keyreplace(modules, 1, Properties, - {modules, Modules}), - file:write_file( - TargetFile, - io_lib:format("~p.~n", [{application, Application, NewProperties}])). diff --git a/generate_deps b/generate_deps deleted file mode 100644 index ddfca816..00000000 --- a/generate_deps +++ /dev/null @@ -1,57 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- --mode(compile). - -%% We expect the list of Erlang source and header files to arrive on -%% stdin, with the entries colon-separated. -main([TargetFile, EbinDir]) -> - ErlsAndHrls = [ string:strip(S,left) || - S <- string:tokens(io:get_line(""), ":\n")], - ErlFiles = [F || F <- ErlsAndHrls, lists:suffix(".erl", F)], - Modules = sets:from_list( - [list_to_atom(filename:basename(FileName, ".erl")) || - FileName <- ErlFiles]), - HrlFiles = [F || F <- ErlsAndHrls, lists:suffix(".hrl", F)], - IncludeDirs = lists:usort([filename:dirname(Path) || Path <- HrlFiles]), - Headers = sets:from_list(HrlFiles), - Deps = lists:foldl( - fun (Path, Deps1) -> - dict:store(Path, detect_deps(IncludeDirs, EbinDir, - Modules, Headers, Path), - Deps1) - end, dict:new(), ErlFiles), - {ok, Hdl} = file:open(TargetFile, [write, delayed_write]), - dict:fold( - fun (_Path, [], ok) -> - ok; - (Path, Dep, ok) -> - Module = filename:basename(Path, ".erl"), - ok = file:write(Hdl, [EbinDir, "/", Module, ".beam: ", - Path]), - ok = sets:fold(fun (E, ok) -> file:write(Hdl, [" ", E]) end, - ok, Dep), - file:write(Hdl, ["\n"]) - end, ok, Deps), - ok = file:write(Hdl, [TargetFile, ": ", escript:script_name(), "\n"]), - ok = file:sync(Hdl), - ok = file:close(Hdl). - -detect_deps(IncludeDirs, EbinDir, Modules, Headers, Path) -> - {ok, Forms} = epp:parse_file(Path, IncludeDirs, [{use_specs, true}]), - lists:foldl( - fun ({attribute, _LineNumber, Attribute, Behaviour}, Deps) - when Attribute =:= behaviour orelse Attribute =:= behavior -> - case sets:is_element(Behaviour, Modules) of - true -> sets:add_element( - [EbinDir, "/", atom_to_list(Behaviour), ".beam"], - Deps); - false -> Deps - end; - ({attribute, _LineNumber, file, {FileName, _LineNumber1}}, Deps) -> - case sets:is_element(FileName, Headers) of - true -> sets:add_element(FileName, Deps); - false -> Deps - end; - (_Form, Deps) -> - Deps - end, sets:new(), Forms). diff --git a/include/gm_specs.hrl b/include/gm_specs.hrl deleted file mode 100644 index ee29706e..00000000 --- a/include/gm_specs.hrl +++ /dev/null @@ -1,28 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --type(callback_result() :: 'ok' | {'stop', any()} | {'become', atom(), args()}). --type(args() :: any()). --type(members() :: [pid()]). - --spec(joined/2 :: (args(), members()) -> callback_result()). --spec(members_changed/3 :: (args(), members(), members()) -> callback_result()). --spec(handle_msg/3 :: (args(), pid(), any()) -> callback_result()). --spec(terminate/2 :: (args(), term()) -> any()). - --endif. diff --git a/include/rabbit.hrl b/include/rabbit.hrl deleted file mode 100644 index 4d75b546..00000000 --- a/include/rabbit.hrl +++ /dev/null @@ -1,101 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --record(user, {username, - is_admin, - auth_backend, %% Module this user came from - impl %% Scratch space for that module - }). - --record(internal_user, {username, password_hash, is_admin}). --record(permission, {configure, write, read}). --record(user_vhost, {username, virtual_host}). --record(user_permission, {user_vhost, permission}). - --record(vhost, {virtual_host, dummy}). - --record(connection, {protocol, user, timeout_sec, frame_max, vhost, - client_properties, capabilities}). - --record(content, - {class_id, - properties, %% either 'none', or a decoded record/tuple - properties_bin, %% either 'none', or an encoded properties binary - %% Note: at most one of properties and properties_bin can be - %% 'none' at once. - protocol, %% The protocol under which properties_bin was encoded - payload_fragments_rev %% list of binaries, in reverse order (!) - }). - --record(resource, {virtual_host, kind, name}). - --record(exchange, {name, type, durable, auto_delete, internal, arguments}). - --record(amqqueue, {name, durable, auto_delete, exclusive_owner = none, - arguments, pid}). - -%% mnesia doesn't like unary records, so we add a dummy 'value' field --record(route, {binding, value = const}). --record(reverse_route, {reverse_binding, value = const}). - --record(binding, {source, key, destination, args = []}). --record(reverse_binding, {destination, key, source, args = []}). - --record(topic_trie_edge, {trie_edge, node_id}). --record(topic_trie_binding, {trie_binding, value = const}). - --record(trie_edge, {exchange_name, node_id, word}). --record(trie_binding, {exchange_name, node_id, destination}). - --record(listener, {node, protocol, host, ip_address, port}). - --record(basic_message, {exchange_name, routing_keys = [], content, guid, - is_persistent}). - --record(ssl_socket, {tcp, ssl}). --record(delivery, {mandatory, immediate, txn, sender, message, - msg_seq_no}). --record(amqp_error, {name, explanation = "", method = none}). - --record(event, {type, props, timestamp}). - --record(message_properties, {expiry, needs_confirming = false}). - -%%---------------------------------------------------------------------------- - --define(COPYRIGHT_MESSAGE, "Copyright (C) 2007-2011 VMware, Inc."). --define(INFORMATION_MESSAGE, "Licensed under the MPL. See http://www.rabbitmq.com/"). --define(PROTOCOL_VERSION, "AMQP 0-9-1 / 0-9 / 0-8"). --define(ERTS_MINIMUM, "5.6.3"). - --define(MAX_WAIT, 16#ffffffff). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(STATS_INTERVAL, 5000). - --define(ROUTING_HEADERS, [<<"CC">>, <<"BCC">>]). --define(DELETED_HEADER, <<"BCC">>). - --ifdef(debug). --define(LOGDEBUG0(F), rabbit_log:debug(F)). --define(LOGDEBUG(F,A), rabbit_log:debug(F,A)). --define(LOGMESSAGE(D,C,M,Co), rabbit_log:message(D,C,M,Co)). --else. --define(LOGDEBUG0(F), ok). --define(LOGDEBUG(F,A), ok). --define(LOGMESSAGE(D,C,M,Co), ok). --endif. diff --git a/include/rabbit_auth_backend_spec.hrl b/include/rabbit_auth_backend_spec.hrl deleted file mode 100644 index e26d44ea..00000000 --- a/include/rabbit_auth_backend_spec.hrl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). - --spec(check_user_login/2 :: (rabbit_types:username(), [term()]) -> - {'ok', rabbit_types:user()} | - {'refused', string(), [any()]} | - {'error', any()}). --spec(check_vhost_access/3 :: (rabbit_types:user(), rabbit_types:vhost(), - rabbit_access_control:vhost_permission_atom()) -> - boolean() | {'error', any()}). --spec(check_resource_access/3 :: (rabbit_types:user(), - rabbit_types:r(atom()), - rabbit_access_control:permission_atom()) -> - boolean() | {'error', any()}). --endif. diff --git a/include/rabbit_auth_mechanism_spec.hrl b/include/rabbit_auth_mechanism_spec.hrl deleted file mode 100644 index 614a3eed..00000000 --- a/include/rabbit_auth_mechanism_spec.hrl +++ /dev/null @@ -1,28 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(should_offer/1 :: (rabbit_net:socket()) -> boolean()). --spec(init/1 :: (rabbit_net:socket()) -> any()). --spec(handle_response/2 :: (binary(), any()) -> - {'ok', rabbit_types:user()} | - {'challenge', binary(), any()} | - {'protocol_error', string(), [any()]} | - {'refused', string(), [any()]}). - --endif. diff --git a/include/rabbit_backing_queue_spec.hrl b/include/rabbit_backing_queue_spec.hrl deleted file mode 100644 index accb2c0e..00000000 --- a/include/rabbit_backing_queue_spec.hrl +++ /dev/null @@ -1,67 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --type(fetch_result(Ack) :: - ('empty' | - %% Message, IsDelivered, AckTag, Remaining_Len - {rabbit_types:basic_message(), boolean(), Ack, non_neg_integer()})). --type(is_durable() :: boolean()). --type(attempt_recovery() :: boolean()). --type(purged_msg_count() :: non_neg_integer()). --type(confirm_required() :: boolean()). --type(message_properties_transformer() :: - fun ((rabbit_types:message_properties()) - -> rabbit_types:message_properties())). - --spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(init/3 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) -> - state()). --spec(terminate/1 :: (state()) -> state()). --spec(delete_and_terminate/1 :: (state()) -> state()). --spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). --spec(publish/3 :: (rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) -> state()). --spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) - -> {ack(), state()}; - (false, rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) - -> {undefined, state()}). --spec(dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> state()). --spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; - (false, state()) -> {fetch_result(undefined), state()}). --spec(ack/2 :: ([ack()], state()) -> state()). --spec(tx_publish/4 :: (rabbit_types:txn(), rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) -> state()). --spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). --spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). --spec(tx_commit/4 :: - (rabbit_types:txn(), fun (() -> any()), - message_properties_transformer(), state()) -> {[ack()], state()}). --spec(requeue/3 :: ([ack()], message_properties_transformer(), state()) - -> state()). --spec(len/1 :: (state()) -> non_neg_integer()). --spec(is_empty/1 :: (state()) -> boolean()). --spec(set_ram_duration_target/2 :: - (('undefined' | 'infinity' | number()), state()) -> state()). --spec(ram_duration/1 :: (state()) -> {number(), state()}). --spec(needs_idle_timeout/1 :: (state()) -> boolean()). --spec(idle_timeout/1 :: (state()) -> state()). --spec(handle_pre_hibernate/1 :: (state()) -> state()). --spec(status/1 :: (state()) -> [{atom(), any()}]). diff --git a/include/rabbit_exchange_type_spec.hrl b/include/rabbit_exchange_type_spec.hrl deleted file mode 100644 index 45c475d8..00000000 --- a/include/rabbit_exchange_type_spec.hrl +++ /dev/null @@ -1,36 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(route/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> rabbit_router:match_result()). --spec(validate/1 :: (rabbit_types:exchange()) -> 'ok'). --spec(create/2 :: (boolean(), rabbit_types:exchange()) -> 'ok'). --spec(recover/2 :: (rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(delete/3 :: (boolean(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(add_binding/3 :: (boolean(), rabbit_types:exchange(), - rabbit_types:binding()) -> 'ok'). --spec(remove_bindings/3 :: (boolean(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). - --endif. diff --git a/include/rabbit_msg_store.hrl b/include/rabbit_msg_store.hrl deleted file mode 100644 index 9d704f65..00000000 --- a/include/rabbit_msg_store.hrl +++ /dev/null @@ -1,26 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit.hrl"). - --ifdef(use_specs). - --type(msg() :: any()). - --endif. - --record(msg_location, - {guid, ref_count, file, offset, total_size}). diff --git a/include/rabbit_msg_store_index.hrl b/include/rabbit_msg_store_index.hrl deleted file mode 100644 index 289f8f60..00000000 --- a/include/rabbit_msg_store_index.hrl +++ /dev/null @@ -1,45 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit_msg_store.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(dir() :: any()). --type(index_state() :: any()). --type(keyvalue() :: any()). --type(fieldpos() :: non_neg_integer()). --type(fieldvalue() :: any()). - --spec(new/1 :: (dir()) -> index_state()). --spec(recover/1 :: (dir()) -> rabbit_types:ok_or_error2(index_state(), any())). --spec(lookup/2 :: - (rabbit_guid:guid(), index_state()) -> ('not_found' | keyvalue())). --spec(insert/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update_fields/3 :: (rabbit_guid:guid(), ({fieldpos(), fieldvalue()} | - [{fieldpos(), fieldvalue()}]), - index_state()) -> 'ok'). --spec(delete/2 :: (rabbit_guid:guid(), index_state()) -> 'ok'). --spec(delete_object/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(delete_by_file/2 :: (fieldvalue(), index_state()) -> 'ok'). --spec(terminate/1 :: (index_state()) -> any()). - --endif. - -%%---------------------------------------------------------------------------- diff --git a/packaging/RPMS/Fedora/Makefile b/packaging/RPMS/Fedora/Makefile deleted file mode 100644 index 287945fe..00000000 --- a/packaging/RPMS/Fedora/Makefile +++ /dev/null @@ -1,44 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -TOP_DIR=$(shell pwd) -#Under debian we do not want to check build dependencies, since that -#only checks build-dependencies using rpms, not debs -DEFINES=--define '_topdir $(TOP_DIR)' --define '_tmppath $(TOP_DIR)/tmp' --define '_sysconfdir /etc' --define '_localstatedir /var' - -ifndef RPM_OS -RPM_OS=fedora -endif - -ifeq "x$(RPM_OS)" "xsuse" -REQUIRES=/sbin/chkconfig /sbin/service -OS_DEFINES=--define '_initrddir /etc/init.d' --define 'dist .suse' -else -REQUIRES=chkconfig initscripts -OS_DEFINES=--define '_initrddir /etc/rc.d/init.d' -endif - -rpms: clean server - -prepare: - mkdir -p BUILD SOURCES SPECS SRPMS RPMS tmp - cp $(TARBALL_DIR)/$(TARBALL) SOURCES - cp rabbitmq-server.spec SPECS - sed -i 's|%%VERSION%%|$(VERSION)|;s|%%REQUIRES%%|$(REQUIRES)|' \ - SPECS/rabbitmq-server.spec - - cp ${COMMON_DIR}/* SOURCES/ - sed -i \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=/var/lock/subsys/$$NAME|' \ - SOURCES/rabbitmq-server.init - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - SOURCES/rabbitmq-script-wrapper - cp rabbitmq-server.logrotate SOURCES/rabbitmq-server.logrotate - -server: prepare - rpmbuild -ba --nodeps SPECS/rabbitmq-server.spec $(DEFINES) $(OS_DEFINES) - -clean: - rm -rf SOURCES SPECS RPMS SRPMS BUILD tmp diff --git a/packaging/RPMS/Fedora/rabbitmq-server.logrotate b/packaging/RPMS/Fedora/rabbitmq-server.logrotate deleted file mode 100644 index 6b657614..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /sbin/service rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec deleted file mode 100644 index ae9b2059..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ /dev/null @@ -1,196 +0,0 @@ -%define debug_package %{nil} - -Name: rabbitmq-server -Version: %%VERSION%% -Release: 1%{?dist} -License: MPLv1.1 -Group: Development/Libraries -Source: http://www.rabbitmq.com/releases/rabbitmq-server/v%{version}/%{name}-%{version}.tar.gz -Source1: rabbitmq-server.init -Source2: rabbitmq-script-wrapper -Source3: rabbitmq-server.logrotate -Source4: rabbitmq-server.ocf -URL: http://www.rabbitmq.com/ -BuildArch: noarch -BuildRequires: erlang >= R12B-3, python-simplejson, xmlto, libxslt -Requires: erlang >= R12B-3, logrotate -BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-%{_arch}-root -Summary: The RabbitMQ server -Requires(post): %%REQUIRES%% -Requires(pre): %%REQUIRES%% - -%description -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -# We want to install into /usr/lib, even on 64-bit platforms -%define _rabbit_libdir %{_exec_prefix}/lib/rabbitmq -%define _rabbit_erllibdir %{_rabbit_libdir}/lib/rabbitmq_server-%{version} -%define _rabbit_wrapper %{_builddir}/`basename %{S:2}` -%define _rabbit_server_ocf %{_builddir}/`basename %{S:4}` -%define _plugins_state_dir %{_localstatedir}/lib/rabbitmq/plugins - -%define _maindir %{buildroot}%{_rabbit_erllibdir} - -%prep -%setup -q - -%build -cp %{S:2} %{_rabbit_wrapper} -cp %{S:4} %{_rabbit_server_ocf} -make %{?_smp_mflags} - -%install -rm -rf %{buildroot} - -make install TARGET_DIR=%{_maindir} \ - SBIN_DIR=%{buildroot}%{_rabbit_libdir}/bin \ - MAN_DIR=%{buildroot}%{_mandir} - -mkdir -p %{buildroot}%{_localstatedir}/lib/rabbitmq/mnesia -mkdir -p %{buildroot}%{_localstatedir}/log/rabbitmq - -#Copy all necessary lib files etc. -install -p -D -m 0755 %{S:1} %{buildroot}%{_initrddir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmqctl -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_server_ocf} %{buildroot}%{_exec_prefix}/lib/ocf/resource.d/rabbitmq/rabbitmq-server - -install -p -D -m 0644 %{S:3} %{buildroot}%{_sysconfdir}/logrotate.d/rabbitmq-server - -mkdir -p %{buildroot}%{_sysconfdir}/rabbitmq - -rm %{_maindir}/LICENSE %{_maindir}/LICENSE-MPL-RabbitMQ %{_maindir}/INSTALL - -#Build the list of files -echo '%defattr(-,root,root, -)' >%{_builddir}/%{name}.files -find %{buildroot} -path %{buildroot}%{_sysconfdir} -prune -o '!' -type d -printf "/%%P\n" >>%{_builddir}/%{name}.files - -%pre - -if [ $1 -gt 1 ]; then - # Upgrade - stop previous instance of rabbitmq-server init.d script - /sbin/service rabbitmq-server stop -fi - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - groupadd -r rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - useradd -r -g rabbitmq -d %{_localstatedir}/lib/rabbitmq rabbitmq \ - -c "RabbitMQ messaging server" -fi - -%post -/sbin/chkconfig --add %{name} -if [ -f %{_sysconfdir}/rabbitmq/rabbitmq.conf ] && [ ! -f %{_sysconfdir}/rabbitmq/rabbitmq-env.conf ]; then - mv %{_sysconfdir}/rabbitmq/rabbitmq.conf %{_sysconfdir}/rabbitmq/rabbitmq-env.conf -fi - -%preun -if [ $1 = 0 ]; then - #Complete uninstall - /sbin/service rabbitmq-server stop - /sbin/chkconfig --del rabbitmq-server - - # We do not remove /var/log and /var/lib directories - # Leave rabbitmq user and group -fi - -# Clean out plugin activation state, both on uninstall and upgrade -rm -rf %{_plugins_state_dir} -for ext in rel script boot ; do - rm -f %{_rabbit_erllibdir}/ebin/rabbit.$ext -done - -%files -f ../%{name}.files -%defattr(-,root,root,-) -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/lib/rabbitmq -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/log/rabbitmq -%dir %{_sysconfdir}/rabbitmq -%{_initrddir}/rabbitmq-server -%config(noreplace) %{_sysconfdir}/logrotate.d/rabbitmq-server -%doc LICENSE LICENSE-MPL-RabbitMQ - -%clean -rm -rf %{buildroot} - -%changelog -* Thu Feb 3 2011 simon@rabbitmq.com 2.3.1-1 -- New Upstream Release - -* Tue Feb 1 2011 simon@rabbitmq.com 2.3.0-1 -- New Upstream Release - -* Mon Nov 29 2010 rob@rabbitmq.com 2.2.0-1 -- New Upstream Release - -* Tue Oct 19 2010 vlad@rabbitmq.com 2.1.1-1 -- New Upstream Release - -* Tue Sep 14 2010 marek@rabbitmq.com 2.1.0-1 -- New Upstream Release - -* Mon Aug 23 2010 mikeb@rabbitmq.com 2.0.0-1 -- New Upstream Release - -* Wed Jul 14 2010 Emile Joubert 1.8.1-1 -- New Upstream Release - -* Tue Jun 15 2010 Matthew Sackman 1.8.0-1 -- New Upstream Release - -* Mon Feb 15 2010 Matthew Sackman 1.7.2-1 -- New Upstream Release - -* Fri Jan 22 2010 Matthew Sackman 1.7.1-1 -- New Upstream Release - -* Mon Oct 5 2009 David Wragg 1.7.0-1 -- New upstream release - -* Wed Jun 17 2009 Matthias Radestock 1.6.0-1 -- New upstream release - -* Tue May 19 2009 Matthias Radestock 1.5.5-1 -- Maintenance release for the 1.5.x series - -* Mon Apr 6 2009 Matthias Radestock 1.5.4-1 -- Maintenance release for the 1.5.x series - -* Tue Feb 24 2009 Tony Garnock-Jones 1.5.3-1 -- Maintenance release for the 1.5.x series - -* Mon Feb 23 2009 Tony Garnock-Jones 1.5.2-1 -- Maintenance release for the 1.5.x series - -* Mon Jan 19 2009 Ben Hood <0x6e6562@gmail.com> 1.5.1-1 -- Maintenance release for the 1.5.x series - -* Wed Dec 17 2008 Matthias Radestock 1.5.0-1 -- New upstream release - -* Thu Jul 24 2008 Tony Garnock-Jones 1.4.0-1 -- New upstream release - -* Mon Mar 3 2008 Adrien Pierard 1.3.0-1 -- New upstream release - -* Wed Sep 26 2007 Simon MacMullen 1.2.0-1 -- New upstream release - -* Wed Aug 29 2007 Simon MacMullen 1.1.1-1 -- New upstream release - -* Mon Jul 30 2007 Simon MacMullen 1.1.0-1.alpha -- New upstream release - -* Tue Jun 12 2007 Hubert Plociniczak 1.0.0-1.20070607 -- Building from source tarball, added starting script, stopping - -* Mon May 21 2007 Hubert Plociniczak 1.0.0-1.alpha -- Initial build of server library of RabbitMQ package diff --git a/packaging/common/rabbitmq-script-wrapper b/packaging/common/rabbitmq-script-wrapper deleted file mode 100644 index 23d2a06c..00000000 --- a/packaging/common/rabbitmq-script-wrapper +++ /dev/null @@ -1,42 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Escape spaces and quotes, because shell is revolting. -for arg in "$@" ; do - # Escape quotes in parameters, so that they're passed through cleanly. - arg=$(sed -e 's/"/\\"/g' <<-END - $arg - END - ) - CMDLINE="${CMDLINE} \"${arg}\"" -done - -cd /var/lib/rabbitmq - -SCRIPT=`basename $0` - -if [ `id -u` = 0 ] ; then - @SU_RABBITMQ_SH_C@ "/usr/lib/rabbitmq/bin/${SCRIPT} ${CMDLINE}" -elif [ `id -u` = `id -u rabbitmq` ] ; then - /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -else - /usr/lib/rabbitmq/bin/${SCRIPT} - echo - echo "Only root or rabbitmq should run ${SCRIPT}" - echo - exit 1 -fi diff --git a/packaging/common/rabbitmq-server.init b/packaging/common/rabbitmq-server.init deleted file mode 100644 index 916dee6f..00000000 --- a/packaging/common/rabbitmq-server.init +++ /dev/null @@ -1,153 +0,0 @@ -#!/bin/sh -# -# rabbitmq-server RabbitMQ broker -# -# chkconfig: - 80 05 -# description: Enable AMQP service provided by RabbitMQ -# - -### BEGIN INIT INFO -# Provides: rabbitmq-server -# Required-Start: $remote_fs $network -# Required-Stop: $remote_fs $network -# Default-Start: -# Default-Stop: -# Description: RabbitMQ broker -# Short-Description: Enable AMQP service provided by RabbitMQ broker -### END INIT INFO - -PATH=/sbin:/usr/sbin:/bin:/usr/bin -NAME=rabbitmq-server -DAEMON=/usr/sbin/${NAME} -CONTROL=/usr/sbin/rabbitmqctl -DESC=rabbitmq-server -USER=rabbitmq -ROTATE_SUFFIX= -INIT_LOG_DIR=/var/log/rabbitmq - -LOCK_FILE= # This is filled in when building packages - -test -x $DAEMON || exit 0 - -RETVAL=0 -set -e - -start_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - echo RabbitMQ is currently running - else - RETVAL=0 - set +e - setsid sh -c "$DAEMON > ${INIT_LOG_DIR}/startup_log \ - 2> ${INIT_LOG_DIR}/startup_err" & - $CONTROL wait >/dev/null 2>&1 - RETVAL=$? - set -e - case "$RETVAL" in - 0) - echo SUCCESS - if [ -n "$LOCK_FILE" ] ; then - touch $LOCK_FILE - fi - ;; - *) - echo FAILED - check ${INIT_LOG_DIR}/startup_\{log, _err\} - RETVAL=1 - ;; - esac - fi -} - -stop_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - set +e - $CONTROL stop > ${INIT_LOG_DIR}/shutdown_log 2> ${INIT_LOG_DIR}/shutdown_err - RETVAL=$? - set -e - if [ $RETVAL = 0 ] ; then - if [ -n "$LOCK_FILE" ] ; then - rm -f $LOCK_FILE - fi - else - echo FAILED - check ${INIT_LOG_DIR}/shutdown_log, _err - fi - else - echo RabbitMQ is not running - RETVAL=0 - fi -} - -status_rabbitmq() { - set +e - if [ "$1" != "quiet" ] ; then - $CONTROL status 2>&1 - else - $CONTROL status > /dev/null 2>&1 - fi - if [ $? != 0 ] ; then - RETVAL=3 - fi - set -e -} - -rotate_logs_rabbitmq() { - set +e - $DAEMON rotate_logs ${ROTATE_SUFFIX} - if [ $? != 0 ] ; then - RETVAL=1 - fi - set -e -} - -restart_running_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - restart_rabbitmq - else - echo RabbitMQ is not runnning - RETVAL=0 - fi -} - -restart_rabbitmq() { - stop_rabbitmq - start_rabbitmq -} - -case "$1" in - start) - echo -n "Starting $DESC: " - start_rabbitmq - echo "$NAME." - ;; - stop) - echo -n "Stopping $DESC: " - stop_rabbitmq - echo "$NAME." - ;; - status) - status_rabbitmq - ;; - rotate-logs) - echo -n "Rotating log files for $DESC: " - rotate_logs_rabbitmq - ;; - force-reload|reload|restart) - echo -n "Restarting $DESC: " - restart_rabbitmq - echo "$NAME." - ;; - try-restart) - echo -n "Restarting $DESC: " - restart_running_rabbitmq - echo "$NAME." - ;; - *) - echo "Usage: $0 {start|stop|status|rotate-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 - RETVAL=1 - ;; -esac - -exit $RETVAL diff --git a/packaging/common/rabbitmq-server.ocf b/packaging/common/rabbitmq-server.ocf deleted file mode 100755 index 94999d0e..00000000 --- a/packaging/common/rabbitmq-server.ocf +++ /dev/null @@ -1,341 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -## -## OCF Resource Agent compliant rabbitmq-server resource script. -## - -## OCF instance parameters -## OCF_RESKEY_server -## OCF_RESKEY_ctl -## OCF_RESKEY_nodename -## OCF_RESKEY_ip -## OCF_RESKEY_port -## OCF_RESKEY_config_file -## OCF_RESKEY_log_base -## OCF_RESKEY_mnesia_base -## OCF_RESKEY_server_start_args - -####################################################################### -# Initialization: - -: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/heartbeat} -. ${OCF_FUNCTIONS_DIR}/.ocf-shellfuncs - -####################################################################### - -OCF_RESKEY_server_default="/usr/sbin/rabbitmq-server" -OCF_RESKEY_ctl_default="/usr/sbin/rabbitmqctl" -OCF_RESKEY_nodename_default="rabbit@localhost" -OCF_RESKEY_log_base_default="/var/log/rabbitmq" -: ${OCF_RESKEY_server=${OCF_RESKEY_server_default}} -: ${OCF_RESKEY_ctl=${OCF_RESKEY_ctl_default}} -: ${OCF_RESKEY_nodename=${OCF_RESKEY_nodename_default}} -: ${OCF_RESKEY_log_base=${OCF_RESKEY_log_base_default}} - -meta_data() { - cat < - - -1.0 - - -Resource agent for RabbitMQ-server - - -Resource agent for RabbitMQ-server - - - - -The path to the rabbitmq-server script - -Path to rabbitmq-server - - - - - -The path to the rabbitmqctl script - -Path to rabbitmqctl - - - - - -The node name for rabbitmq-server - -Node name - - - - - -The IP address for rabbitmq-server to listen on - -IP Address - - - - - -The IP Port for rabbitmq-server to listen on - -IP Port - - - - - -Location of the config file - -Config file path - - - - - -Location of the directory under which logs will be created - -Log base path - - - - - -Location of the directory under which mnesia will store data - -Mnesia base path - - - - - -Additional arguments provided to the server on startup - -Server start arguments - - - - - - - - - - - - - - -END -} - -rabbit_usage() { - cat < /dev/null 2> /dev/null - rc=$? - case "$rc" in - 0) - ocf_log debug "RabbitMQ server is running normally" - return $OCF_SUCCESS - ;; - 2) - ocf_log debug "RabbitMQ server is not running" - return $OCF_NOT_RUNNING - ;; - *) - ocf_log err "Unexpected return from rabbitmqctl $NODENAME_ARG $action: $rc" - exit $OCF_ERR_GENERIC - esac -} - -rabbit_start() { - local rc - - if rabbit_status; then - ocf_log info "Resource already running." - return $OCF_SUCCESS - fi - - export_vars - - setsid sh -c "$RABBITMQ_SERVER > ${RABBITMQ_LOG_BASE}/startup_log 2> ${RABBITMQ_LOG_BASE}/startup_err" & - - # Wait for the server to come up. - # Let the CRM/LRM time us out if required - rabbit_wait - rc=$? - if [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server start failed: $rc" - exit $OCF_ERR_GENERIC - fi - - return $OCF_SUCCESS -} - -rabbit_stop() { - local rc - - if ! rabbit_status; then - ocf_log info "Resource not running." - return $OCF_SUCCESS - fi - - $RABBITMQ_CTL stop - rc=$? - - if [ "$rc" != 0 ]; then - ocf_log err "rabbitmq-server stop command failed: $RABBITMQ_CTL stop, $rc" - return $rc - fi - - # Spin waiting for the server to shut down. - # Let the CRM/LRM time us out if required - stop_wait=1 - while [ $stop_wait = 1 ]; do - rabbit_status - rc=$? - if [ "$rc" = $OCF_NOT_RUNNING ]; then - stop_wait=0 - break - elif [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server stop failed: $rc" - exit $OCF_ERR_GENERIC - fi - sleep 1 - done - - return $OCF_SUCCESS -} - -rabbit_monitor() { - rabbit_status - return $? -} - -case $__OCF_ACTION in - meta-data) - meta_data - exit $OCF_SUCCESS - ;; - usage|help) - rabbit_usage - exit $OCF_SUCCESS - ;; -esac - -if ocf_is_probe; then - rabbit_validate_partial -else - rabbit_validate_full -fi - -case $__OCF_ACTION in - start) - rabbit_start - ;; - stop) - rabbit_stop - ;; - status|monitor) - rabbit_monitor - ;; - validate-all) - exit $OCF_SUCCESS - ;; - *) - rabbit_usage - exit $OCF_ERR_UNIMPLEMENTED - ;; -esac - -exit $? diff --git a/packaging/debs/Debian/Makefile b/packaging/debs/Debian/Makefile deleted file mode 100644 index d937fbb2..00000000 --- a/packaging/debs/Debian/Makefile +++ /dev/null @@ -1,41 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -DEBIAN_ORIG_TARBALL=$(shell echo $(TARBALL) | sed -e 's:\(.*\)-\(.*\)\(\.tar\.gz\):\1_\2\.orig\3:g') -UNPACKED_DIR=rabbitmq-server-$(VERSION) -PACKAGENAME=rabbitmq-server -SIGNING_KEY_ID=056E8E56 - -ifneq "$(UNOFFICIAL_RELEASE)" "" - SIGNING=-us -uc -else - SIGNING=-k$(SIGNING_KEY_ID) -endif - -all: - @echo 'Please choose a target from the Makefile.' - -package: clean - cp $(TARBALL_DIR)/$(TARBALL) $(DEBIAN_ORIG_TARBALL) - tar -zxvf $(DEBIAN_ORIG_TARBALL) - cp -r debian $(UNPACKED_DIR) - cp $(COMMON_DIR)/* $(UNPACKED_DIR)/debian/ - sed -i \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=|' \ - $(UNPACKED_DIR)/debian/rabbitmq-server.init - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - $(UNPACKED_DIR)/debian/rabbitmq-script-wrapper - chmod a+x $(UNPACKED_DIR)/debian/rules - UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) - cd $(UNPACKED_DIR); GNUPGHOME=$(GNUPG_PATH)/.gnupg dpkg-buildpackage -rfakeroot $(SIGNING) - rm -rf $(UNPACKED_DIR) - -clean: - rm -rf $(UNPACKED_DIR) - rm -f $(PACKAGENAME)_*.tar.gz - rm -f $(PACKAGENAME)_*.diff.gz - rm -f $(PACKAGENAME)_*.dsc - rm -f $(PACKAGENAME)_*_*.changes - rm -f $(PACKAGENAME)_*_*.deb diff --git a/packaging/debs/Debian/check-changelog.sh b/packaging/debs/Debian/check-changelog.sh deleted file mode 100755 index ff25e648..00000000 --- a/packaging/debs/Debian/check-changelog.sh +++ /dev/null @@ -1,29 +0,0 @@ -#!/bin/sh - -PACKAGE_NAME=$1 -cd $2 - -CHANGELOG_VERSION=$(dpkg-parsechangelog | sed -n 's/^Version: \(.*\)-[^-]*$/\1/p') - -if [ "${CHANGELOG_VERSION}" != "${VERSION}" ]; then - if [ -n "${UNOFFICIAL_RELEASE}" ]; then - echo "${PACKAGE_NAME} (${VERSION}-1) unstable; urgency=low" > debian/changelog.tmp - echo >> debian/changelog.tmp - echo " * Unofficial release" >> debian/changelog.tmp - echo >> debian/changelog.tmp - echo " -- Nobody $(date -R)" >> debian/changelog.tmp - echo >> debian/changelog.tmp - cat debian/changelog >> debian/changelog.tmp - mv -f debian/changelog.tmp debian/changelog - - exit 0 - else - echo - echo There is no entry in debian/changelog for version ${VERSION}! - echo Please create a changelog entry, or set the variable - echo UNOFFICIAL_RELEASE to automatically create one. - echo - - exit 1 - fi -fi diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog deleted file mode 100644 index 12165dc0..00000000 --- a/packaging/debs/Debian/debian/changelog +++ /dev/null @@ -1,156 +0,0 @@ -rabbitmq-server (2.3.1-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Thu, 03 Feb 2011 12:43:56 +0000 - -rabbitmq-server (2.3.0-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Tue, 01 Feb 2011 12:52:16 +0000 - -rabbitmq-server (2.2.0-1) lucid; urgency=low - - * New Upstream Release - - -- Rob Harrop Mon, 29 Nov 2010 12:24:48 +0000 - -rabbitmq-server (2.1.1-1) lucid; urgency=low - - * New Upstream Release - - -- Vlad Alexandru Ionescu Tue, 19 Oct 2010 17:20:10 +0100 - -rabbitmq-server (2.1.0-1) lucid; urgency=low - - * New Upstream Release - - -- Marek Majkowski Tue, 14 Sep 2010 14:20:17 +0100 - -rabbitmq-server (2.0.0-1) karmic; urgency=low - - * New Upstream Release - - -- Michael Bridgen Mon, 23 Aug 2010 14:55:39 +0100 - -rabbitmq-server (1.8.1-1) lucid; urgency=low - - * New Upstream Release - - -- Emile Joubert Wed, 14 Jul 2010 15:05:24 +0100 - -rabbitmq-server (1.8.0-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Tue, 15 Jun 2010 12:48:48 +0100 - -rabbitmq-server (1.7.2-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Mon, 15 Feb 2010 15:54:47 +0000 - -rabbitmq-server (1.7.1-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Fri, 22 Jan 2010 14:14:29 +0000 - -rabbitmq-server (1.7.0-1) intrepid; urgency=low - - * New Upstream Release - - -- David Wragg Mon, 05 Oct 2009 13:44:41 +0100 - -rabbitmq-server (1.6.0-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 16 Jun 2009 15:02:58 +0100 - -rabbitmq-server (1.5.5-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 19 May 2009 09:57:54 +0100 - -rabbitmq-server (1.5.4-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Mon, 06 Apr 2009 09:19:32 +0100 - -rabbitmq-server (1.5.3-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Tue, 24 Feb 2009 18:23:33 +0000 - -rabbitmq-server (1.5.2-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Mon, 23 Feb 2009 16:03:38 +0000 - -rabbitmq-server (1.5.1-1) hardy; urgency=low - - * New Upstream Release - - -- Simon MacMullen Mon, 19 Jan 2009 15:46:13 +0000 - -rabbitmq-server (1.5.0-1) testing; urgency=low - - * New Upstream Release - - -- Matthias Radestock Wed, 17 Dec 2008 18:23:47 +0000 - -rabbitmq-server (1.4.0-1) testing; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Thu, 24 Jul 2008 13:21:48 +0100 - -rabbitmq-server (1.3.0-1) testing; urgency=low - - * New Upstream Release - - -- Adrien Pierard Mon, 03 Mar 2008 15:34:38 +0000 - -rabbitmq-server (1.2.0-2) testing; urgency=low - - * Fixed rabbitmqctl wrapper script - - -- Simon MacMullen Fri, 05 Oct 2007 11:55:00 +0100 - -rabbitmq-server (1.2.0-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 26 Sep 2007 11:49:26 +0100 - -rabbitmq-server (1.1.1-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 29 Aug 2007 12:03:15 +0100 - -rabbitmq-server (1.1.0-alpha-2) testing; urgency=low - - * Fixed erlang-nox dependency - - -- Simon MacMullen Thu, 02 Aug 2007 11:27:13 +0100 - -rabbitmq-server (1.1.0-alpha-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Fri, 20 Jul 2007 18:17:33 +0100 - -rabbitmq-server (1.0.0-alpha-1) unstable; urgency=low - - * Initial release - - -- Tony Garnock-Jones Wed, 31 Jan 2007 19:06:33 +0000 - diff --git a/packaging/debs/Debian/debian/compat b/packaging/debs/Debian/debian/compat deleted file mode 100644 index 7ed6ff82..00000000 --- a/packaging/debs/Debian/debian/compat +++ /dev/null @@ -1 +0,0 @@ -5 diff --git a/packaging/debs/Debian/debian/control b/packaging/debs/Debian/debian/control deleted file mode 100644 index 02da0cc6..00000000 --- a/packaging/debs/Debian/debian/control +++ /dev/null @@ -1,18 +0,0 @@ -Source: rabbitmq-server -Section: net -Priority: extra -Maintainer: RabbitMQ Team -Build-Depends: cdbs, debhelper (>= 5), erlang-dev, python-simplejson, xmlto, xsltproc -Standards-Version: 3.8.0 - -Package: rabbitmq-server -Architecture: all -# erlang-inets is not a strict dependency, but it's needed to allow -# the installation of plugins that use mochiweb. Ideally it would be a -# "Recommends" instead, but gdebi does not install those. -Depends: erlang-base (>= 1:12.b.3) | erlang-base-hipe (>= 1:12.b.3), erlang-ssl | erlang-nox (<< 1:13.b-dfsg1-1), erlang-os-mon | erlang-nox (<< 1:13.b-dfsg1-1), erlang-mnesia | erlang-nox (<< 1:13.b-dfsg1-1), erlang-inets | erlang-nox (<< 1:13.b-dfsg1-1), adduser, logrotate, ${misc:Depends} -Description: An AMQP server written in Erlang - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. -Homepage: http://www.rabbitmq.com/ diff --git a/packaging/debs/Debian/debian/copyright b/packaging/debs/Debian/debian/copyright deleted file mode 100755 index 7206bb9b..00000000 --- a/packaging/debs/Debian/debian/copyright +++ /dev/null @@ -1,502 +0,0 @@ -This package was debianized by Tony Garnock-Jones on -Wed, 3 Jan 2007 15:43:44 +0000. - -It was downloaded from http://www.rabbitmq.com/ - -The files codegen/amqp-rabbitmq-0.8.json and -codegen/amqp-rabbitmq-0.9.1.json are covered by the following terms: - - "Copyright (C) 2008-2011 VMware, Inc. - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this file (the Software), to deal in the - Software without restriction, including without limitation the - rights to use, copy, modify, merge, publish, distribute, - sublicense, and/or sell copies of the Software, and to permit - persons to whom the Software is furnished to do so, subject to - the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - OTHER DEALINGS IN THE SOFTWARE." - -The rest of this package is licensed under the Mozilla Public License 1.1 -Authors and Copyright are as described below: - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved. - - - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] - - - - - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. - -The Debian packaging is (C) 2007-2011, VMware, Inc. and is licensed -under the MPL 1.1, see above. diff --git a/packaging/debs/Debian/debian/dirs b/packaging/debs/Debian/debian/dirs deleted file mode 100644 index 625b7d41..00000000 --- a/packaging/debs/Debian/debian/dirs +++ /dev/null @@ -1,9 +0,0 @@ -usr/lib/rabbitmq/bin -usr/lib/erlang/lib -usr/sbin -usr/share/man -var/lib/rabbitmq/mnesia -var/log/rabbitmq -etc/logrotate.d -etc/rabbitmq - diff --git a/packaging/debs/Debian/debian/postinst b/packaging/debs/Debian/debian/postinst deleted file mode 100644 index b11340ef..00000000 --- a/packaging/debs/Debian/debian/postinst +++ /dev/null @@ -1,60 +0,0 @@ -#!/bin/sh -# postinst script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `configure' -# * `abort-upgrade' -# * `abort-remove' `in-favour' -# -# * `abort-remove' -# * `abort-deconfigure' `in-favour' -# `removing' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - addgroup --system rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - adduser --system --ingroup rabbitmq --home /var/lib/rabbitmq \ - --no-create-home --gecos "RabbitMQ messaging server" \ - --disabled-login rabbitmq -fi - -chown -R rabbitmq:rabbitmq /var/lib/rabbitmq -chown -R rabbitmq:rabbitmq /var/log/rabbitmq - -case "$1" in - configure) - if [ -f /etc/rabbitmq/rabbitmq.conf ] && \ - [ ! -f /etc/rabbitmq/rabbitmq-env.conf ]; then - mv /etc/rabbitmq/rabbitmq.conf /etc/rabbitmq/rabbitmq-env.conf - fi - ;; - - abort-upgrade|abort-remove|abort-deconfigure) - ;; - - *) - echo "postinst called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/postrm.in b/packaging/debs/Debian/debian/postrm.in deleted file mode 100644 index c4aeeebe..00000000 --- a/packaging/debs/Debian/debian/postrm.in +++ /dev/null @@ -1,73 +0,0 @@ -#!/bin/sh -# postrm script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `remove' -# * `purge' -# * `upgrade' -# * `failed-upgrade' -# * `abort-install' -# * `abort-install' -# * `abort-upgrade' -# * `disappear' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - -remove_plugin_traces() { - # Remove traces of plugins - rm -rf /var/lib/rabbitmq/plugins-scratch -} - -case "$1" in - purge) - rm -f /etc/default/rabbitmq - if [ -d /var/lib/rabbitmq ]; then - rm -r /var/lib/rabbitmq - fi - if [ -d /var/log/rabbitmq ]; then - rm -r /var/log/rabbitmq - fi - if [ -d /var/run/rabbitmq ]; then - rm -r /var/run/rabbitmq - fi - if [ -d /etc/rabbitmq ]; then - rm -r /etc/rabbitmq - fi - remove_plugin_traces - if getent passwd rabbitmq >/dev/null; then - # Stop epmd if run by the rabbitmq user - pkill -u rabbitmq epmd || : - - deluser rabbitmq - fi - if getent group rabbitmq >/dev/null; then - delgroup rabbitmq - fi - ;; - - remove|upgrade) - remove_plugin_traces - ;; - - failed-upgrade|abort-install|abort-upgrade|disappear) - ;; - - *) - echo "postrm called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/rabbitmq-server.logrotate b/packaging/debs/Debian/debian/rabbitmq-server.logrotate deleted file mode 100644 index c786df77..00000000 --- a/packaging/debs/Debian/debian/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /etc/init.d/rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/debs/Debian/debian/rules b/packaging/debs/Debian/debian/rules deleted file mode 100644 index a785b292..00000000 --- a/packaging/debs/Debian/debian/rules +++ /dev/null @@ -1,21 +0,0 @@ -#!/usr/bin/make -f - -include /usr/share/cdbs/1/rules/debhelper.mk -include /usr/share/cdbs/1/class/makefile.mk - -RABBIT_LIB=$(DEB_DESTDIR)usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)/ -RABBIT_BIN=$(DEB_DESTDIR)usr/lib/rabbitmq/bin/ - -DEB_MAKE_INSTALL_TARGET := install TARGET_DIR=$(RABBIT_LIB) SBIN_DIR=$(RABBIT_BIN) MAN_DIR=$(DEB_DESTDIR)usr/share/man/ -DEB_MAKE_CLEAN_TARGET:= distclean - -DOCDIR=$(DEB_DESTDIR)usr/share/doc/rabbitmq-server/ - -install/rabbitmq-server:: - mkdir -p $(DOCDIR) - rm $(RABBIT_LIB)LICENSE* $(RABBIT_LIB)INSTALL* - for script in rabbitmqctl rabbitmq-server; do \ - install -p -D -m 0755 debian/rabbitmq-script-wrapper $(DEB_DESTDIR)usr/sbin/$$script; \ - done - sed -e 's|@RABBIT_LIB@|/usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)|g' debian/postrm - install -p -D -m 0755 debian/rabbitmq-server.ocf $(DEB_DESTDIR)usr/lib/ocf/resource.d/rabbitmq/rabbitmq-server diff --git a/packaging/debs/Debian/debian/watch b/packaging/debs/Debian/debian/watch deleted file mode 100644 index b41aff9a..00000000 --- a/packaging/debs/Debian/debian/watch +++ /dev/null @@ -1,4 +0,0 @@ -version=3 - -http://www.rabbitmq.com/releases/rabbitmq-server/v(.*)/rabbitmq-server-(\d.*)\.tar\.gz \ - debian uupdate diff --git a/packaging/debs/apt-repository/Makefile b/packaging/debs/apt-repository/Makefile deleted file mode 100644 index ce4347bc..00000000 --- a/packaging/debs/apt-repository/Makefile +++ /dev/null @@ -1,28 +0,0 @@ -SIGNING_USER_EMAIL=info@rabbitmq.com - -ifeq "$(UNOFFICIAL_RELEASE)" "" -HOME_ARG=HOME=$(GNUPG_PATH) -endif - -all: debian_apt_repository - -clean: - rm -rf debian - -CAN_HAS_REPREPRO=$(shell [ -f /usr/bin/reprepro ] && echo true) -ifeq ($(CAN_HAS_REPREPRO), true) -debian_apt_repository: clean - mkdir -p debian/conf - cp -a distributions debian/conf -ifeq "$(UNOFFICIAL_RELEASE)" "" - echo SignWith: $(SIGNING_USER_EMAIL) >> debian/conf/distributions -endif - for FILE in ../Debian/*.changes ; do \ - $(HOME_ARG) reprepro --ignore=wrongdistribution \ - -Vb debian include kitten $${FILE} ; \ - done - reprepro -Vb debian createsymlinks -else -debian_apt_repository: - @echo Not building APT repository as reprepro could not be found -endif diff --git a/packaging/debs/apt-repository/README b/packaging/debs/apt-repository/README deleted file mode 100644 index 514a37f3..00000000 --- a/packaging/debs/apt-repository/README +++ /dev/null @@ -1,17 +0,0 @@ -APT repository for RabbitMQ - -Previously we've attempted to run a repository in the same way that -Debian would: have repository management software installed on the -server, and upload new packages to the repository as and when they're -ready. - -This turned out to be both fiddly and annoying to do (and more -particularly to automate) so since our repository is always going to be -small it's easier just to create the entire repository as part of the -build process, just like a package. It can then be moved into place as a -single unit. The make target "debian_apt_repository" (invoked by "dist") -will create it, and it can get moved onto the server with the rest of -the packages. - -Read "README-real-repository" for information on how we used to do -this. diff --git a/packaging/debs/apt-repository/README-real-repository b/packaging/debs/apt-repository/README-real-repository deleted file mode 100644 index b1526227..00000000 --- a/packaging/debs/apt-repository/README-real-repository +++ /dev/null @@ -1,130 +0,0 @@ -APT Repository for RabbitMQ in Debian -===================================== - -First, a note on what we're trying to do. We want a single "testing" -repository. When RabbitMQ is more stable we will also want a -"stable" repository. It is very important to understand that these refer -to the state of the rabbit code, *NOT* which Debian distribution they go -with. At the moment our dependencies are very simple so our packages can -be used with any current Debian version (etch, lenny, sid) as well as -with Ubuntu. So although we have a "testing" distribution, this is not -codenamed "lenny". Instead it's currently codenamed "kitten" since -that's a baby rabbit. - -Secondly, a note on software. We need a tool to manage the repository, -and a tool to perform uploads to the repository. Debian being Debian -there are quite a few of each. We will use "rerepro" to manage the -repository since it's modern, maintained, and fairly simple. We will use -"dupload" to perform the uploads since it gives us the ability to run -arbitrary commands after the upload, which means we don't need to run a -cron job on the web server to process uploads. - -Creating a repository -===================== - -Much of this was cribbed from: -http://www.debian-administration.org/articles/286 - -The repository is fundamentally just some files in a folder, served over -HTTP (or FTP etc). So let's make it "debian" in the root of -www.rabbitmq.com. - -This means the repository will be at http://www.rabbitmq.com/debian/ and -can be added to a sources.list as: - -deb http://www.rabbitmq.com/debian/ testing main -deb-src http://www.rabbitmq.com/debian/ testing main - -Inside this folder we need a "conf" folder, and in -that we need a "distributions" configuration file - see the file in this -folder. Note that: - -* We list all architectures so that people can install rabbitmq-server - on to anything. -* We don't list the "all" architecture even though we use it; it's - implied. -* We only have a "main" component, we could have non-free and contrib - here if it was relevant. -* We list the email address associated with the key we want to use to - sign the repository. Yes, even after signing packages we still want to - sign the repository. - -We're now ready to go. Assuming the path to our repository is /path, -(and hence configuration is in /path/conf) we can upload a file to the -repository (creating it in the process) by doing something like this on -the repository host: - -$ reprepro --ignore=wrongdistribution -Vb /path include kitten \ - rabbitmq-server_1.0.0-alpha-1_i386.changes - -Note that we upload to the distribution "kitten" rather than "testing". -We also pass --ignore=wrongdistribution since the current packages are -built to go in "unstable" (this will be changed obviously). - -Note also that the .changes file claims to be for i386 even though the -package is for architecture "all". This is a bug in debhelper. - -Finally, if you've just created a repository, you want to run: - -$ reprepro -Vb /path createsymlinks - -since this will create "kitten" -> "testing" symlinks. You only need to -do this once. - -Removing packages -================= - -Fairly simple: - -$ reprepro --ignore=wrongdistribution -Vb /path remove kitten \ - rabbitmq-server - -Subsequent updates and "dupload" -================================ - -You can run the "reprepro" command above again to update the versions of -software in the repository. Since we probably don't want to have to log -into the machine in question to do this, we can use "dupload". This is a -tool which uploads Debian packages. The supplied file "dupload.conf" can -be renamed to ~/.dupload.conf. If you then run: - -$ dupload -to rabbit --nomail . - -in the folder with the .changes file, dupload will: - -* create an incoming folder in your home directory on the repository -machine -* upload everything there -* run reprepro to move the packages into the repository -* "rm -rf" the uploads folder - -This is a bit cheesy but should be enough for our purposes. The -dupload.conf uses scp and ssh so you need a public-key login (or tpye -your password lots). - -There's still an open question as to whether dupload is really needed -for our case. - -Keys and signing -================ - -We currently sign the package as we build it; but we also need to sign -the repository. The key is currently on my machine (mrforgetful) and has -ID 056E8E56. We should put it on CDs though. - -reprepro will automatically sign the repository if we have the right -SignWith line in the configuration, AND the secret key is installed on -the repository server. This is obviously not ideal; not sure what the -solution is right now. - -You can export the public key with: - -$ gpg --export --armor 056E8E56 > rabbit.pub - -(Open question: do we want to get our key on subkeys.pgp.net?) - -We can then add this key to the website and tell our users to import the -key into apt with: - -# apt-key add rabbit.pub - diff --git a/packaging/debs/apt-repository/distributions b/packaging/debs/apt-repository/distributions deleted file mode 100644 index 183eb034..00000000 --- a/packaging/debs/apt-repository/distributions +++ /dev/null @@ -1,7 +0,0 @@ -Origin: RabbitMQ -Label: RabbitMQ Repository for Debian / Ubuntu etc -Suite: testing -Codename: kitten -Architectures: arm hppa ia64 mips mipsel s390 sparc i386 amd64 powerpc source -Components: main -Description: RabbitMQ Repository for Debian / Ubuntu etc diff --git a/packaging/debs/apt-repository/dupload.conf b/packaging/debs/apt-repository/dupload.conf deleted file mode 100644 index 9ceed760..00000000 --- a/packaging/debs/apt-repository/dupload.conf +++ /dev/null @@ -1,16 +0,0 @@ -package config; - -$rabbit_user = "simon"; -$rabbit_host = "mrforgetful.lshift.net"; -$rabbit_repo_path = "/srv/debian"; -$rabbit_reprepro_extra_args = "--ignore=wrongdistribution"; - -$cfg{'rabbit'} = { - fqdn => "$rabbit_host", - login => "$rabbit_user", - method => "scp", - incoming => "incoming", -}; - -$preupload{'deb'} = "ssh ${rabbit_host} mkdir incoming"; -$postupload{'deb'} = "ssh ${rabbit_host} \"cd incoming && reprepro ${$rabbit_reprepro_extra_args} -Vb ${rabbit_repo_path} include kitten *.changes && cd .. && rm -r incoming\""; diff --git a/packaging/generic-unix/Makefile b/packaging/generic-unix/Makefile deleted file mode 100644 index c4e01f4a..00000000 --- a/packaging/generic-unix/Makefile +++ /dev/null @@ -1,23 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_TARBALL=rabbitmq-server-generic-unix-$(VERSION) - -dist: - tar -zxvf ../../dist/$(SOURCE_DIR).tar.gz - - $(MAKE) -C $(SOURCE_DIR) \ - TARGET_DIR=`pwd`/$(TARGET_DIR) \ - SBIN_DIR=`pwd`/$(TARGET_DIR)/sbin \ - MAN_DIR=`pwd`/$(TARGET_DIR)/share/man \ - install - - tar -zcf $(TARGET_TARBALL).tar.gz $(TARGET_DIR) - rm -rf $(SOURCE_DIR) $(TARGET_DIR) - -clean: clean_partial - rm -f rabbitmq-server-generic-unix-*.tar.gz - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile deleted file mode 100644 index 47da02dc..00000000 --- a/packaging/macports/Makefile +++ /dev/null @@ -1,59 +0,0 @@ -TARBALL_SRC_DIR=../../dist -TARBALL_BIN_DIR=../../packaging/generic-unix/ -TARBALL_SRC=$(wildcard $(TARBALL_SRC_DIR)/rabbitmq-server-[0-9.]*.tar.gz) -TARBALL_BIN=$(wildcard $(TARBALL_BIN_DIR)/rabbitmq-server-generic-unix-[0-9.]*.tar.gz) -COMMON_DIR=../common -VERSION=$(shell echo $(TARBALL_SRC) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -# The URL at which things really get deployed -REAL_WEB_URL=http://www.rabbitmq.com/ - -# The user@host for an OSX machine with macports installed, which is -# used to generate the macports index files. That step will be -# skipped if this variable is not set. If you do set it, you might -# also want to set SSH_OPTS, which allows adding ssh options, e.g. to -# specify a key that will get into the OSX machine without a -# passphrase. -MACPORTS_USERHOST= - -MACPORTS_DIR=macports -DEST=$(MACPORTS_DIR)/net/rabbitmq-server - -all: macports - -dirs: - mkdir -p $(DEST)/files - -$(DEST)/Portfile: Portfile.in - ./make-checksums.sh $(TARBALL_SRC) $(TARBALL_BIN) > checksums.sed - sed -e "s|@VERSION@|$(VERSION)|g;s|@BASE_URL@|$(REAL_WEB_URL)|g" \ - -f checksums.sed <$^ >$@ - rm checksums.sed - -# The purpose of the intricate substitution below is to set up similar -# environment vars to the ones that su will on Linux. On OS X, we -# have to use the -m option to su in order to be able to set the shell -# (which for the rabbitmq user would otherwise be /dev/null). But the -# -m option means that *all* environment vars get preserved. Erlang -# needs vars such as HOME to be set. So we have to set them -# explicitly. -macports: dirs $(DEST)/Portfile - cp $(COMMON_DIR)/rabbitmq-script-wrapper $(DEST)/files - sed -i -e 's|@SU_RABBITMQ_SH_C@|SHELL=/bin/sh HOME=/var/lib/rabbitmq USER=rabbitmq LOGNAME=rabbitmq PATH="$$(eval `PATH=MACPORTS_PREFIX/bin /usr/libexec/path_helper -s`; echo $$PATH)" su -m rabbitmq -c|' \ - $(DEST)/files/rabbitmq-script-wrapper - cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files - if [ -n "$(MACPORTS_USERHOST)" ] ; then \ - tar cf - -C $(MACPORTS_DIR) . | ssh $(SSH_OPTS) $(MACPORTS_USERHOST) ' \ - d="/tmp/mkportindex.$$$$" ; \ - mkdir $$d \ - && cd $$d \ - && tar xf - \ - && /opt/local/bin/portindex -a -o . >/dev/null \ - && tar cf - . \ - && cd \ - && rm -rf $$d' \ - | tar xf - -C $(MACPORTS_DIR) ; \ - fi - -clean: - rm -rf $(MACPORTS_DIR) checksums.sed diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in deleted file mode 100644 index 809f518b..00000000 --- a/packaging/macports/Portfile.in +++ /dev/null @@ -1,118 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version @VERSION@ -categories net -maintainers paperplanes.de:meyer rabbitmq.com:tonyg openmaintainer -platforms darwin -supported_archs noarch - -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage @BASE_URL@ -master_sites @BASE_URL@releases/rabbitmq-server/v${version}/ - -distfiles ${name}-${version}${extract.suffix} \ - ${name}-generic-unix-${version}${extract.suffix} - -checksums \ - ${name}-${version}${extract.suffix} \ - md5 @md5-src@ \ - sha1 @sha1-src@ \ - rmd160 @rmd160-src@ \ - ${name}-generic-unix-${version}${extract.suffix} \ - md5 @md5-bin@ \ - sha1 @sha1-bin@ \ - rmd160 @rmd160-bin@ - -depends_lib port:erlang -depends_build port:libxslt - -platform darwin 8 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -platform darwin 9 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -# no need for simplejson on Snow Leopard or higher - - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin -set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin -set mansrc ${workpath}/rabbitmq_server-${version}/share/man -set mandest ${destroot}${prefix}/share/man - -use_configure no - -use_parallel_build yes - -destroot.target install_bin - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq):${prefix}\\1:g" \ - ${realsbin}/rabbitmq-env - foreach var {CONFIG_FILE LOG_BASE MNESIA_BASE} { - reinplace -E "s:^($var)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - } - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-server - - reinplace -E "s:MACPORTS_PREFIX/bin:${prefix}/bin:" \ - ${wrappersbin}/rabbitmq-server - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-server - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-server ${wrappersbin}/rabbitmqctl - - xinstall -m 644 -W ${mansrc}/man1 rabbitmq-server.1.gz rabbitmqctl.1.gz \ - ${mandest}/man1/ - xinstall -m 644 -W ${mansrc}/man5 rabbitmq-env.conf.5.gz ${mandest}/man5/ -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/make-checksums.sh b/packaging/macports/make-checksums.sh deleted file mode 100755 index 11424dfc..00000000 --- a/packaging/macports/make-checksums.sh +++ /dev/null @@ -1,14 +0,0 @@ -#!/bin/bash -# NB: this script requires bash -tarball_src=$1 -tarball_bin=$2 -for type in src bin -do - tarball_var=tarball_${type} - tarball=${!tarball_var} - for algo in md5 sha1 rmd160 - do - checksum=$(openssl $algo ${tarball} | awk '{print $NF}') - echo "s|@$algo-$type@|$checksum|g" - done -done diff --git a/packaging/macports/make-port-diff.sh b/packaging/macports/make-port-diff.sh deleted file mode 100755 index 3eb1b9f5..00000000 --- a/packaging/macports/make-port-diff.sh +++ /dev/null @@ -1,27 +0,0 @@ -#!/bin/bash - -# This script grabs the latest rabbitmq-server bits from the main -# macports subversion repo, and from the rabbitmq.com macports repo, -# and produces a diff from the former to the latter for submission -# through the macports trac. - -set -e - -dir=/tmp/$(basename $0).$$ -mkdir -p $dir/macports $dir/rabbitmq - -# Get the files from the macports subversion repo -cd $dir/macports -svn checkout http://svn.macports.org/repository/macports/trunk/dports/net/rabbitmq-server/ 2>&1 >/dev/null - -# Clear out the svn $id tag -sed -i -e 's|^# \$.*$|# $Id$|' rabbitmq-server/Portfile - -# Get the files from the rabbitmq.com macports repo -cd ../rabbitmq -curl -s http://www.rabbitmq.com/releases/macports/net/rabbitmq-server.tgz | tar xzf - - -cd .. -diff -Naur --exclude=.svn macports rabbitmq -cd / -rm -rf $dir diff --git a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff deleted file mode 100644 index 45b49496..00000000 --- a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff +++ /dev/null @@ -1,10 +0,0 @@ ---- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 -+++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 -@@ -22,6 +22,7 @@ - ; - --pid=none - -+UserNamerabbitmq - Debug - Disabled - OnDemand diff --git a/packaging/windows-exe/Makefile b/packaging/windows-exe/Makefile deleted file mode 100644 index 59803f9c..00000000 --- a/packaging/windows-exe/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -VERSION=0.0.0 -ZIP=../windows/rabbitmq-server-windows-$(VERSION) - -dist: rabbitmq-$(VERSION).nsi rabbitmq_server-$(VERSION) - makensis rabbitmq-$(VERSION).nsi - -rabbitmq-$(VERSION).nsi: rabbitmq_nsi.in - sed \ - -e 's|%%VERSION%%|$(VERSION)|' \ - $< > $@ - -rabbitmq_server-$(VERSION): - unzip $(ZIP) - -clean: - rm -rf rabbitmq-*.nsi rabbitmq_server-* rabbitmq-server-*.exe diff --git a/packaging/windows-exe/lib/EnvVarUpdate.nsh b/packaging/windows-exe/lib/EnvVarUpdate.nsh deleted file mode 100644 index 839d6a02..00000000 --- a/packaging/windows-exe/lib/EnvVarUpdate.nsh +++ /dev/null @@ -1,327 +0,0 @@ -/** - * EnvVarUpdate.nsh - * : Environmental Variables: append, prepend, and remove entries - * - * WARNING: If you use StrFunc.nsh header then include it before this file - * with all required definitions. This is to avoid conflicts - * - * Usage: - * ${EnvVarUpdate} "ResultVar" "EnvVarName" "Action" "RegLoc" "PathString" - * - * Credits: - * Version 1.0 - * * Cal Turney (turnec2) - * * Amir Szekely (KiCHiK) and e-circ for developing the forerunners of this - * function: AddToPath, un.RemoveFromPath, AddToEnvVar, un.RemoveFromEnvVar, - * WriteEnvStr, and un.DeleteEnvStr - * * Diego Pedroso (deguix) for StrTok - * * Kevin English (kenglish_hi) for StrContains - * * Hendri Adriaens (Smile2Me), Diego Pedroso (deguix), and Dan Fuhry - * (dandaman32) for StrReplace - * - * Version 1.1 (compatibility with StrFunc.nsh) - * * techtonik - * - * http://nsis.sourceforge.net/Environmental_Variables:_append%2C_prepend%2C_and_remove_entries - * - */ - - -!ifndef ENVVARUPDATE_FUNCTION -!define ENVVARUPDATE_FUNCTION -!verbose push -!verbose 3 -!include "LogicLib.nsh" -!include "WinMessages.NSH" -!include "StrFunc.nsh" - -; ---- Fix for conflict if StrFunc.nsh is already includes in main file ----------------------- -!macro _IncludeStrFunction StrFuncName - !ifndef ${StrFuncName}_INCLUDED - ${${StrFuncName}} - !endif - !ifndef Un${StrFuncName}_INCLUDED - ${Un${StrFuncName}} - !endif - !define un.${StrFuncName} "${Un${StrFuncName}}" -!macroend - -!insertmacro _IncludeStrFunction StrTok -!insertmacro _IncludeStrFunction StrStr -!insertmacro _IncludeStrFunction StrRep - -; ---------------------------------- Macro Definitions ---------------------------------------- -!macro _EnvVarUpdateConstructor ResultVar EnvVarName Action Regloc PathString - Push "${EnvVarName}" - Push "${Action}" - Push "${RegLoc}" - Push "${PathString}" - Call EnvVarUpdate - Pop "${ResultVar}" -!macroend -!define EnvVarUpdate '!insertmacro "_EnvVarUpdateConstructor"' - -!macro _unEnvVarUpdateConstructor ResultVar EnvVarName Action Regloc PathString - Push "${EnvVarName}" - Push "${Action}" - Push "${RegLoc}" - Push "${PathString}" - Call un.EnvVarUpdate - Pop "${ResultVar}" -!macroend -!define un.EnvVarUpdate '!insertmacro "_unEnvVarUpdateConstructor"' -; ---------------------------------- Macro Definitions end------------------------------------- - -;----------------------------------- EnvVarUpdate start---------------------------------------- -!define hklm_all_users 'HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"' -!define hkcu_current_user 'HKCU "Environment"' - -!macro EnvVarUpdate UN - -Function ${UN}EnvVarUpdate - - Push $0 - Exch 4 - Exch $1 - Exch 3 - Exch $2 - Exch 2 - Exch $3 - Exch - Exch $4 - Push $5 - Push $6 - Push $7 - Push $8 - Push $9 - Push $R0 - - /* After this point: - ------------------------- - $0 = ResultVar (returned) - $1 = EnvVarName (input) - $2 = Action (input) - $3 = RegLoc (input) - $4 = PathString (input) - $5 = Orig EnvVar (read from registry) - $6 = Len of $0 (temp) - $7 = tempstr1 (temp) - $8 = Entry counter (temp) - $9 = tempstr2 (temp) - $R0 = tempChar (temp) */ - - ; Step 1: Read contents of EnvVarName from RegLoc - ; - ; Check for empty EnvVarName - ${If} $1 == "" - SetErrors - DetailPrint "ERROR: EnvVarName is blank" - Goto EnvVarUpdate_Restore_Vars - ${EndIf} - - ; Check for valid Action - ${If} $2 != "A" - ${AndIf} $2 != "P" - ${AndIf} $2 != "R" - SetErrors - DetailPrint "ERROR: Invalid Action - must be A, P, or R" - Goto EnvVarUpdate_Restore_Vars - ${EndIf} - - ${If} $3 == HKLM - ReadRegStr $5 ${hklm_all_users} $1 ; Get EnvVarName from all users into $5 - ${ElseIf} $3 == HKCU - ReadRegStr $5 ${hkcu_current_user} $1 ; Read EnvVarName from current user into $5 - ${Else} - SetErrors - DetailPrint 'ERROR: Action is [$3] but must be "HKLM" or HKCU"' - Goto EnvVarUpdate_Restore_Vars - ${EndIf} - - ; Check for empty PathString - ${If} $4 == "" - SetErrors - DetailPrint "ERROR: PathString is blank" - Goto EnvVarUpdate_Restore_Vars - ${EndIf} - - ; Make sure we've got some work to do - ${If} $5 == "" - ${AndIf} $2 == "R" - SetErrors - DetailPrint "$1 is empty - Nothing to remove" - Goto EnvVarUpdate_Restore_Vars - ${EndIf} - - ; Step 2: Scrub EnvVar - ; - StrCpy $0 $5 ; Copy the contents to $0 - ; Remove spaces around semicolons (NOTE: spaces before the 1st entry or - ; after the last one are not removed here but instead in Step 3) - ${If} $0 != "" ; If EnvVar is not empty ... - ${Do} - ${${UN}StrStr} $7 $0 " ;" - ${If} $7 == "" - ${ExitDo} - ${EndIf} - ${${UN}StrRep} $0 $0 " ;" ";" ; Remove ';' - ${Loop} - ${Do} - ${${UN}StrStr} $7 $0 "; " - ${If} $7 == "" - ${ExitDo} - ${EndIf} - ${${UN}StrRep} $0 $0 "; " ";" ; Remove ';' - ${Loop} - ${Do} - ${${UN}StrStr} $7 $0 ";;" - ${If} $7 == "" - ${ExitDo} - ${EndIf} - ${${UN}StrRep} $0 $0 ";;" ";" - ${Loop} - - ; Remove a leading or trailing semicolon from EnvVar - StrCpy $7 $0 1 0 - ${If} $7 == ";" - StrCpy $0 $0 "" 1 ; Change ';' to '' - ${EndIf} - StrLen $6 $0 - IntOp $6 $6 - 1 - StrCpy $7 $0 1 $6 - ${If} $7 == ";" - StrCpy $0 $0 $6 ; Change ';' to '' - ${EndIf} - ; DetailPrint "Scrubbed $1: [$0]" ; Uncomment to debug - ${EndIf} - - /* Step 3. Remove all instances of the target path/string (even if "A" or "P") - $6 = bool flag (1 = found and removed PathString) - $7 = a string (e.g. path) delimited by semicolon(s) - $8 = entry counter starting at 0 - $9 = copy of $0 - $R0 = tempChar */ - - ${If} $5 != "" ; If EnvVar is not empty ... - StrCpy $9 $0 - StrCpy $0 "" - StrCpy $8 0 - StrCpy $6 0 - - ${Do} - ${${UN}StrTok} $7 $9 ";" $8 "0" ; $7 = next entry, $8 = entry counter - - ${If} $7 == "" ; If we've run out of entries, - ${ExitDo} ; were done - ${EndIf} ; - - ; Remove leading and trailing spaces from this entry (critical step for Action=Remove) - ${Do} - StrCpy $R0 $7 1 - ${If} $R0 != " " - ${ExitDo} - ${EndIf} - StrCpy $7 $7 "" 1 ; Remove leading space - ${Loop} - ${Do} - StrCpy $R0 $7 1 -1 - ${If} $R0 != " " - ${ExitDo} - ${EndIf} - StrCpy $7 $7 -1 ; Remove trailing space - ${Loop} - ${If} $7 == $4 ; If string matches, remove it by not appending it - StrCpy $6 1 ; Set 'found' flag - ${ElseIf} $7 != $4 ; If string does NOT match - ${AndIf} $0 == "" ; and the 1st string being added to $0, - StrCpy $0 $7 ; copy it to $0 without a prepended semicolon - ${ElseIf} $7 != $4 ; If string does NOT match - ${AndIf} $0 != "" ; and this is NOT the 1st string to be added to $0, - StrCpy $0 $0;$7 ; append path to $0 with a prepended semicolon - ${EndIf} ; - - IntOp $8 $8 + 1 ; Bump counter - ${Loop} ; Check for duplicates until we run out of paths - ${EndIf} - - ; Step 4: Perform the requested Action - ; - ${If} $2 != "R" ; If Append or Prepend - ${If} $6 == 1 ; And if we found the target - DetailPrint "Target is already present in $1. It will be removed and" - ${EndIf} - ${If} $0 == "" ; If EnvVar is (now) empty - StrCpy $0 $4 ; just copy PathString to EnvVar - ${If} $6 == 0 ; If found flag is either 0 - ${OrIf} $6 == "" ; or blank (if EnvVarName is empty) - DetailPrint "$1 was empty and has been updated with the target" - ${EndIf} - ${ElseIf} $2 == "A" ; If Append (and EnvVar is not empty), - StrCpy $0 $0;$4 ; append PathString - ${If} $6 == 1 - DetailPrint "appended to $1" - ${Else} - DetailPrint "Target was appended to $1" - ${EndIf} - ${Else} ; If Prepend (and EnvVar is not empty), - StrCpy $0 $4;$0 ; prepend PathString - ${If} $6 == 1 - DetailPrint "prepended to $1" - ${Else} - DetailPrint "Target was prepended to $1" - ${EndIf} - ${EndIf} - ${Else} ; If Action = Remove - ${If} $6 == 1 ; and we found the target - DetailPrint "Target was found and removed from $1" - ${Else} - DetailPrint "Target was NOT found in $1 (nothing to remove)" - ${EndIf} - ${If} $0 == "" - DetailPrint "$1 is now empty" - ${EndIf} - ${EndIf} - - ; Step 5: Update the registry at RegLoc with the updated EnvVar and announce the change - ; - ClearErrors - ${If} $3 == HKLM - WriteRegExpandStr ${hklm_all_users} $1 $0 ; Write it in all users section - ${ElseIf} $3 == HKCU - WriteRegExpandStr ${hkcu_current_user} $1 $0 ; Write it to current user section - ${EndIf} - - IfErrors 0 +4 - MessageBox MB_OK|MB_ICONEXCLAMATION "Could not write updated $1 to $3" - DetailPrint "Could not write updated $1 to $3" - Goto EnvVarUpdate_Restore_Vars - - ; "Export" our change - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - - EnvVarUpdate_Restore_Vars: - ; - ; Restore the user's variables and return ResultVar - Pop $R0 - Pop $9 - Pop $8 - Pop $7 - Pop $6 - Pop $5 - Pop $4 - Pop $3 - Pop $2 - Pop $1 - Push $0 ; Push my $0 (ResultVar) - Exch - Pop $0 ; Restore his $0 - -FunctionEnd - -!macroend ; EnvVarUpdate UN -!insertmacro EnvVarUpdate "" -!insertmacro EnvVarUpdate "un." -;----------------------------------- EnvVarUpdate end---------------------------------------- - -!verbose pop -!endif diff --git a/packaging/windows-exe/rabbitmq.ico b/packaging/windows-exe/rabbitmq.ico deleted file mode 100644 index 5e169a79..00000000 Binary files a/packaging/windows-exe/rabbitmq.ico and /dev/null differ diff --git a/packaging/windows-exe/rabbitmq_nsi.in b/packaging/windows-exe/rabbitmq_nsi.in deleted file mode 100644 index 6d79ffd4..00000000 --- a/packaging/windows-exe/rabbitmq_nsi.in +++ /dev/null @@ -1,241 +0,0 @@ -; Use the "Modern" UI -!include MUI2.nsh -!include LogicLib.nsh -!include WinMessages.nsh -!include FileFunc.nsh -!include WordFunc.nsh -!include lib\EnvVarUpdate.nsh - -!define env_hklm 'HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"' -!define uninstall "Software\Microsoft\Windows\CurrentVersion\Uninstall\RabbitMQ" - -;-------------------------------- - -; The name of the installer -Name "RabbitMQ Server %%VERSION%%" - -; The file to write -OutFile "rabbitmq-server-%%VERSION%%.exe" - -; Icons -!define MUI_ICON "rabbitmq.ico" - -; The default installation directory -InstallDir "$PROGRAMFILES\RabbitMQ Server" - -; Registry key to check for directory (so if you install again, it will -; overwrite the old one automatically) -InstallDirRegKey HKLM "Software\VMware, Inc.\RabbitMQ Server" "Install_Dir" - -; Request application privileges for Windows Vista -RequestExecutionLevel admin - -SetCompressor /solid lzma - -VIProductVersion "%%VERSION%%.0" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductVersion" "%%VERSION%%" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductName" "RabbitMQ Server" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "Comments" "" -VIAddVersionKey /LANG=${LANG_ENGLISH} "CompanyName" "VMware, Inc" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalTrademarks" "" ; TODO ? -VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalCopyright" "Copyright (c) 2007-2011 VMware, Inc. All rights reserved." -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileDescription" "RabbitMQ Server" -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileVersion" "%%VERSION%%" - -;-------------------------------- - -; Pages - - -; !insertmacro MUI_PAGE_LICENSE "..\..\LICENSE-MPL-RabbitMQ" - !insertmacro MUI_PAGE_COMPONENTS - !insertmacro MUI_PAGE_DIRECTORY - !insertmacro MUI_PAGE_INSTFILES - !insertmacro MUI_PAGE_FINISH - - !insertmacro MUI_UNPAGE_CONFIRM - !insertmacro MUI_UNPAGE_INSTFILES - !define MUI_FINISHPAGE_TEXT "RabbitMQ Server %%VERSION%% has been uninstalled from your computer.$\n$\nPlease note that the log and database directories located at $APPDATA\RabbitMQ have not been removed. You can remove them manually if desired." - !insertmacro MUI_UNPAGE_FINISH - -;-------------------------------- -;Languages - - !insertmacro MUI_LANGUAGE "English" - -;-------------------------------- - -; The stuff to install -Section "RabbitMQ Server (required)" Rabbit - - SectionIn RO - - ; Set output path to the installation directory. - SetOutPath $INSTDIR - - ; Put files there - File /r "rabbitmq_server-%%VERSION%%" - File "rabbitmq.ico" - - ; Add to PATH - ${EnvVarUpdate} $0 "PATH" "A" "HKLM" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin" - - ; Write the installation path into the registry - WriteRegStr HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" "Install_Dir" "$INSTDIR" - - ; Write the uninstall keys for Windows - WriteRegStr HKLM ${uninstall} "DisplayName" "RabbitMQ Server" - WriteRegStr HKLM ${uninstall} "UninstallString" "$INSTDIR\uninstall.exe" - WriteRegStr HKLM ${uninstall} "DisplayIcon" "$INSTDIR\uninstall.exe,0" - WriteRegStr HKLM ${uninstall} "Publisher" "VMware, Inc." - WriteRegStr HKLM ${uninstall} "DisplayVersion" "%%VERSION%%" - WriteRegDWORD HKLM ${uninstall} "NoModify" 1 - WriteRegDWORD HKLM ${uninstall} "NoRepair" 1 - - ${GetSize} "$INSTDIR" "/S=0K" $0 $1 $2 - IntFmt $0 "0x%08X" $0 - WriteRegDWORD HKLM "${uninstall}" "EstimatedSize" "$0" - - WriteUninstaller "uninstall.exe" -SectionEnd - -;-------------------------------- - -Section "RabbitMQ Service" RabbitService - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" install' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" start' - CopyFiles "$WINDIR\.erlang.cookie" "$PROFILE\.erlang.cookie" -SectionEnd - -;-------------------------------- - -Section "Start Menu" RabbitStartMenu - ; In case the service is not installed, or the service installation fails, - ; make sure these exist or Explorer will get confused. - CreateDirectory "$APPDATA\RabbitMQ\log" - CreateDirectory "$APPDATA\RabbitMQ\db" - - CreateDirectory "$SMPROGRAMS\RabbitMQ Server" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Uninstall.lnk" "$INSTDIR\uninstall.exe" "" "$INSTDIR\uninstall.exe" 0 - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Plugins Directory.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\plugins" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Log Directory.lnk" "$APPDATA\RabbitMQ\log" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Database Directory.lnk" "$APPDATA\RabbitMQ\db" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\(Re)Install Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "install" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Remove Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "remove" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Start Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "start" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Stop Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "stop" "$INSTDIR\rabbitmq.ico" - -SectionEnd - -;-------------------------------- - -; Section descriptions - -LangString DESC_Rabbit ${LANG_ENGLISH} "The RabbitMQ Server." -LangString DESC_RabbitService ${LANG_ENGLISH} "Set up RabbitMQ as a Windows Service." -LangString DESC_RabbitStartMenu ${LANG_ENGLISH} "Add some useful links to the start menu." - -!insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN - !insertmacro MUI_DESCRIPTION_TEXT ${Rabbit} $(DESC_Rabbit) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitService} $(DESC_RabbitService) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitStartMenu} $(DESC_RabbitStartMenu) -!insertmacro MUI_FUNCTION_DESCRIPTION_END - -;-------------------------------- - -; Uninstaller - -Section "Uninstall" - - ; Remove registry keys - DeleteRegKey HKLM ${uninstall} - DeleteRegKey HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" - - ; TODO these will fail if the service is not installed - do we care? - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" stop' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" remove' - - ; Remove from PATH - ${un.EnvVarUpdate} $0 "PATH" "R" "HKLM" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin" - - ; Remove files and uninstaller - RMDir /r "$INSTDIR\rabbitmq_server-%%VERSION%%" - Delete "$INSTDIR\rabbitmq.ico" - Delete "$INSTDIR\uninstall.exe" - - ; Remove start menu items - RMDir /r "$SMPROGRAMS\RabbitMQ Server" - - DeleteRegValue ${env_hklm} ERLANG_HOME - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - -SectionEnd - -;-------------------------------- - -; Functions - -Function .onInit - Call findErlang - - ReadRegStr $0 HKLM ${uninstall} "UninstallString" - ${If} $0 != "" - MessageBox MB_OKCANCEL|MB_ICONEXCLAMATION "RabbitMQ is already installed. $\n$\nClick 'OK' to remove the previous version or 'Cancel' to cancel this installation." IDCANCEL norun - - ;Run the uninstaller - ClearErrors - ExecWait $INSTDIR\uninstall.exe - - norun: - Abort - ${EndIf} -FunctionEnd - -Function findErlang - - StrCpy $0 0 - StrCpy $2 "not-found" - ${Do} - EnumRegKey $1 HKLM Software\Ericsson\Erlang $0 - ${If} $1 = "" - ${Break} - ${EndIf} - ${If} $1 <> "ErlSrv" - StrCpy $2 $1 - ${EndIf} - - IntOp $0 $0 + 1 - ${Loop} - - ${If} $2 = "not-found" - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Erlang could not be detected.$\nYou must install Erlang before installing RabbitMQ. Would you like the installer to open a browser window to the Erlang download site?" IDNO abort - ExecShell "open" "http://www.erlang.org/download.html" - abort: - Abort - ${Else} - ${VersionCompare} $2 "5.6.3" $0 - ${VersionCompare} $2 "5.8.1" $1 - - ${If} $0 = 2 - MessageBox MB_OK|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is too old. Please install a more recent version." - Abort - ${ElseIf} $1 = 2 - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is comparatively old.$\nFor best results, please install a newer version.$\nDo you wish to continue?" IDYES no_abort - Abort - no_abort: - ${EndIf} - - ReadRegStr $0 HKLM "Software\Ericsson\Erlang\$2" "" - - ; See http://nsis.sourceforge.net/Setting_Environment_Variables - WriteRegExpandStr ${env_hklm} ERLANG_HOME $0 - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - - ; On Windows XP changing the permanent environment does not change *our* - ; environment, so do that as well. - System::Call 'Kernel32::SetEnvironmentVariableA(t, t) i("ERLANG_HOME", "$0").r0' - ${EndIf} - -FunctionEnd \ No newline at end of file diff --git a/packaging/windows/Makefile b/packaging/windows/Makefile deleted file mode 100644 index dacfa620..00000000 --- a/packaging/windows/Makefile +++ /dev/null @@ -1,35 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_ZIP=rabbitmq-server-windows-$(VERSION) - -dist: - tar -zxvf ../../dist/$(SOURCE_DIR).tar.gz - $(MAKE) -C $(SOURCE_DIR) - - mkdir $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-server.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-service.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmqctl.bat $(SOURCE_DIR)/sbin - rm -rf $(SOURCE_DIR)/scripts - rm -rf $(SOURCE_DIR)/codegen* $(SOURCE_DIR)/Makefile - rm -f $(SOURCE_DIR)/README - rm -rf $(SOURCE_DIR)/docs - - mv $(SOURCE_DIR) $(TARGET_DIR) - mkdir -p $(TARGET_DIR) - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory > $(TARGET_DIR)/plugins/README - xmlto -o . xhtml-nochunks ../../docs/rabbitmq-service.xml - elinks -dump -no-references -no-numbering rabbitmq-service.html \ - > $(TARGET_DIR)/readme-service.txt - todos $(TARGET_DIR)/readme-service.txt - zip -r $(TARGET_ZIP).zip $(TARGET_DIR) - rm -rf $(TARGET_DIR) rabbitmq-service.html - -clean: clean_partial - rm -f rabbitmq-server-windows-*.zip - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/scripts/rabbitmq-env b/scripts/rabbitmq-env deleted file mode 100755 index 3e173949..00000000 --- a/scripts/rabbitmq-env +++ /dev/null @@ -1,44 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Determine where this script is really located -SCRIPT_PATH="$0" -while [ -h "$SCRIPT_PATH" ] ; do - FULL_PATH=`readlink -f $SCRIPT_PATH 2>/dev/null` - if [ "$?" != "0" ]; then - REL_PATH=`readlink $SCRIPT_PATH` - if expr "$REL_PATH" : '/.*' > /dev/null; then - SCRIPT_PATH="$REL_PATH" - else - SCRIPT_PATH="`dirname "$SCRIPT_PATH"`/$REL_PATH" - fi - else - SCRIPT_PATH=$FULL_PATH - fi -done - -SCRIPT_DIR=`dirname $SCRIPT_PATH` -RABBITMQ_HOME="${SCRIPT_DIR}/.." -[ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname` -NODENAME=rabbit@${HOSTNAME%%.*} - -# Load configuration from the rabbitmq.conf file -if [ -f /etc/rabbitmq/rabbitmq.conf ]; then - echo -n "WARNING: ignoring /etc/rabbitmq/rabbitmq.conf -- " - echo "location has moved to /etc/rabbitmq/rabbitmq-env.conf" -fi -[ -f /etc/rabbitmq/rabbitmq-env.conf ] && . /etc/rabbitmq/rabbitmq-env.conf diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server deleted file mode 100755 index 2f80eb96..00000000 --- a/scripts/rabbitmq-server +++ /dev/null @@ -1,117 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -SERVER_ERL_ARGS="+K true +A30 +P 1048576 \ --kernel inet_default_connect_options [{nodelay,true}]" -CONFIG_FILE=/etc/rabbitmq/rabbitmq -LOG_BASE=/var/log/rabbitmq -MNESIA_BASE=/var/lib/rabbitmq/mnesia -SERVER_START_ARGS= - -. `dirname $0`/rabbitmq-env - -DEFAULT_NODE_IP_ADDRESS=auto -DEFAULT_NODE_PORT=5672 -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} -[ "x" = "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} -if [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] -then - if [ "x" != "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_IP_ADDRESS=${DEFAULT_NODE_IP_ADDRESS} - fi -else - if [ "x" = "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_PORT=${DEFAULT_NODE_PORT} - fi -fi -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_SERVER_ERL_ARGS" ] && RABBITMQ_SERVER_ERL_ARGS=${SERVER_ERL_ARGS} -[ "x" = "x$RABBITMQ_CONFIG_FILE" ] && RABBITMQ_CONFIG_FILE=${CONFIG_FILE} -[ "x" = "x$RABBITMQ_LOG_BASE" ] && RABBITMQ_LOG_BASE=${LOG_BASE} -[ "x" = "x$RABBITMQ_MNESIA_BASE" ] && RABBITMQ_MNESIA_BASE=${MNESIA_BASE} -[ "x" = "x$RABBITMQ_SERVER_START_ARGS" ] && RABBITMQ_SERVER_START_ARGS=${SERVER_START_ARGS} - -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${MNESIA_DIR} -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME} - -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${PLUGINS_EXPAND_DIR} -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME}-plugins-expand - -[ "x" = "x$RABBITMQ_PLUGINS_DIR" ] && RABBITMQ_PLUGINS_DIR="${RABBITMQ_HOME}/plugins" - -## Log rotation -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS=${LOGS} -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}.log" -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS=${SASL_LOGS} -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}-sasl.log" -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=${BACKUP_EXTENSION} -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=".1" - -[ -f "${RABBITMQ_LOGS}" ] && cat "${RABBITMQ_LOGS}" >> "${RABBITMQ_LOGS}${RABBITMQ_BACKUP_EXTENSION}" -[ -f "${RABBITMQ_SASL_LOGS}" ] && cat "${RABBITMQ_SASL_LOGS}" >> "${RABBITMQ_SASL_LOGS}${RABBITMQ_BACKUP_EXTENSION}" - -RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' - -RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" -if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then - if erl \ - -pa "$RABBITMQ_EBIN_ROOT" \ - -noinput \ - -hidden \ - -s rabbit_prelaunch \ - -sname rabbitmqprelaunch$$ \ - -extra "$RABBITMQ_PLUGINS_DIR" "${RABBITMQ_PLUGINS_EXPAND_DIR}" "${RABBITMQ_NODENAME}" - then - RABBITMQ_BOOT_FILE="${RABBITMQ_PLUGINS_EXPAND_DIR}/rabbit" - RABBITMQ_EBIN_PATH="" - else - exit 1 - fi -else - RABBITMQ_BOOT_FILE=start_sasl - RABBITMQ_EBIN_PATH="-pa ${RABBITMQ_EBIN_ROOT}" -fi -RABBITMQ_CONFIG_ARG= -[ -f "${RABBITMQ_CONFIG_FILE}.config" ] && RABBITMQ_CONFIG_ARG="-config ${RABBITMQ_CONFIG_FILE}" - -RABBITMQ_LISTEN_ARG= -[ "x" != "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$RABBITMQ_NODE_IP_ADDRESS" ] && RABBITMQ_LISTEN_ARG="-rabbit tcp_listeners [{\""${RABBITMQ_NODE_IP_ADDRESS}"\","${RABBITMQ_NODE_PORT}"}]" - -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_SERVER_ERL_ARGS, contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - -exec erl \ - ${RABBITMQ_EBIN_PATH} \ - ${RABBITMQ_START_RABBIT} \ - -sname ${RABBITMQ_NODENAME} \ - -boot ${RABBITMQ_BOOT_FILE} \ - ${RABBITMQ_CONFIG_ARG} \ - +W w \ - ${RABBITMQ_SERVER_ERL_ARGS} \ - ${RABBITMQ_LISTEN_ARG} \ - -sasl errlog_type error \ - -kernel error_logger '{file,"'${RABBITMQ_LOGS}'"}' \ - -sasl sasl_error_logger '{file,"'${RABBITMQ_SASL_LOGS}'"}' \ - -os_mon start_cpu_sup true \ - -os_mon start_disksup false \ - -os_mon start_memsup false \ - -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - ${RABBITMQ_SERVER_START_ARGS} \ - "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat deleted file mode 100644 index 5e2097db..00000000 --- a/scripts/rabbitmq-server.bat +++ /dev/null @@ -1,156 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\RabbitMQ -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based of size...) is left as an exercice for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!-sasl.log - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS!!BACKUP_EXTENSION!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS!!BACKUP_EXTENSION!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --sname rabbitmqprelaunch!RANDOM! ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "!RABBITMQ_NODENAME!" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners [{\""!RABBITMQ_NODE_IP_ADDRESS!"\","!RABBITMQ_NODE_PORT!"}] - ) -) - -"!ERLANG_HOME!\bin\erl.exe" ^ -!RABBITMQ_EBIN_PATH! ^ --noinput ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --sname !RABBITMQ_NODENAME! ^ --s rabbit ^ -+W w ^ -+A30 ^ -+P 1048576 ^ --kernel inet_default_connect_options "[{nodelay, true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!LOGS:\=/!"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!SASL_LOGS:\=/!"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -endlocal -endlocal diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat deleted file mode 100644 index aa428a8c..00000000 --- a/scripts/rabbitmq-service.bat +++ /dev/null @@ -1,244 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TN0=%~n0 -set TDP0=%~dp0 -set P1=%1 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_SERVICENAME!"=="" ( - set RABBITMQ_SERVICENAME=RabbitMQ -) - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\!RABBITMQ_SERVICENAME! -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if "!ERLANG_SERVICE_MANAGER_PATH!"=="" ( - if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B - ) - for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\erlsrv.exe" ( - set ERLANG_SERVICE_MANAGER_PATH=!ERLANG_HOME!\%%i\bin - ) -) - -set CONSOLE_FLAG= -set CONSOLE_LOG_VALID= -for %%i in (new reuse) do if "%%i" == "!RABBITMQ_CONSOLE_LOG!" set CONSOLE_LOG_VALID=TRUE -if "!CONSOLE_LOG_VALID!" == "TRUE" ( - set CONSOLE_FLAG=-debugtype !RABBITMQ_CONSOLE_LOG! -) - -rem *** End of configuration *** - -if not exist "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" ( - echo. - echo ********************************************** - echo ERLANG_SERVICE_MANAGER_PATH not set correctly. - echo ********************************************** - echo. - echo "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" not found - echo Please set ERLANG_SERVICE_MANAGER_PATH to the folder containing "erlsrv.exe". - echo. - exit /B 1 -) - -rem erlang prefers forwardslash as separator in paths -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based on size...) is left as an exercise for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!-sasl.log - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS!!BACKUP_EXTENSION!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS!!BACKUP_EXTENSION!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -if "!P1!" == "install" goto INSTALL_SERVICE -for %%i in (start stop disable enable list remove) do if "%%i" == "!P1!" goto MODIFY_SERVICE - -echo. -echo ********************* -echo Service control usage -echo ********************* -echo. -echo !TN0! help - Display this help -echo !TN0! install - Install the !RABBITMQ_SERVICENAME! service -echo !TN0! remove - Remove the !RABBITMQ_SERVICENAME! service -echo. -echo The following actions can also be accomplished by using -echo Windows Services Management Console (services.msc): -echo. -echo !TN0! start - Start the !RABBITMQ_SERVICENAME! service -echo !TN0! stop - Stop the !RABBITMQ_SERVICENAME! service -echo !TN0! disable - Disable the !RABBITMQ_SERVICENAME! service -echo !TN0! enable - Enable the !RABBITMQ_SERVICENAME! service -echo. -exit /B - - -:INSTALL_SERVICE - -if not exist "!RABBITMQ_BASE!" ( - echo Creating base directory !RABBITMQ_BASE! & md "!RABBITMQ_BASE!" -) - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" list !RABBITMQ_SERVICENAME! 2>NUL 1>NUL -if errorlevel 1 ( - "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" add !RABBITMQ_SERVICENAME! -) else ( - echo !RABBITMQ_SERVICENAME! service is already present - only updating service parameters -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners "[{\"!RABBITMQ_NODE_IP_ADDRESS!\", !RABBITMQ_NODE_PORT!}]" - ) -) - -set ERLANG_SERVICE_ARGUMENTS= ^ -!RABBITMQ_EBIN_PATH! ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --s rabbit ^ -+W w ^ -+A30 ^ --kernel inet_default_connect_options "[{nodelay,true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!LOGS:\=/!"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!SASL_LOGS:\=/!"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:\=\\! -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:"=\"! - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" set !RABBITMQ_SERVICENAME! ^ --machine "!ERLANG_SERVICE_MANAGER_PATH!\erl.exe" ^ --env ERL_CRASH_DUMP="!RABBITMQ_BASE_UNIX!/erl_crash.dump" ^ --workdir "!RABBITMQ_BASE!" ^ --stopaction "rabbit:stop_and_halt()." ^ --sname !RABBITMQ_NODENAME! ^ -!CONSOLE_FLAG! ^ --args "!ERLANG_SERVICE_ARGUMENTS!" > NUL - -goto END - - -:MODIFY_SERVICE - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" !P1! !RABBITMQ_SERVICENAME! -goto END - - -:END - -endlocal -endlocal diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl deleted file mode 100755 index 9a11c3b3..00000000 --- a/scripts/rabbitmqctl +++ /dev/null @@ -1,31 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -. `dirname $0`/rabbitmq-env - -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} - -exec erl \ - -pa "${RABBITMQ_HOME}/ebin" \ - -noinput \ - -hidden \ - ${RABBITMQ_CTL_ERL_ARGS} \ - -sname rabbitmqctl$$ \ - -s rabbit_control \ - -nodename $RABBITMQ_NODENAME \ - -extra "$@" diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat deleted file mode 100644 index a74a91fd..00000000 --- a/scripts/rabbitmqctl.bat +++ /dev/null @@ -1,49 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! - -endlocal -endlocal diff --git a/src/bpqueue.erl b/src/bpqueue.erl deleted file mode 100644 index 71a34262..00000000 --- a/src/bpqueue.erl +++ /dev/null @@ -1,271 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(bpqueue). - -%% Block-prefixed queue. From the perspective of the queue interface -%% the datastructure acts like a regular queue where each value is -%% paired with the prefix. -%% -%% This is implemented as a queue of queues, which is more space and -%% time efficient, whilst supporting the normal queue interface. Each -%% inner queue has a prefix, which does not need to be unique, and it -%% is guaranteed that no two consecutive blocks have the same -%% prefix. len/1 returns the flattened length of the queue and is -%% O(1). - --export([new/0, is_empty/1, len/1, in/3, in_r/3, out/1, out_r/1, join/2, - foldl/3, foldr/3, from_list/1, to_list/1, map_fold_filter_l/4, - map_fold_filter_r/4]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([bpqueue/0]). - --type(bpqueue() :: {non_neg_integer(), queue()}). --type(prefix() :: any()). --type(value() :: any()). --type(result() :: ({'empty', bpqueue()} | - {{'value', prefix(), value()}, bpqueue()})). - --spec(new/0 :: () -> bpqueue()). --spec(is_empty/1 :: (bpqueue()) -> boolean()). --spec(len/1 :: (bpqueue()) -> non_neg_integer()). --spec(in/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(in_r/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(out/1 :: (bpqueue()) -> result()). --spec(out_r/1 :: (bpqueue()) -> result()). --spec(join/2 :: (bpqueue(), bpqueue()) -> bpqueue()). --spec(foldl/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(foldr/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(from_list/1 :: ([{prefix(), [value()]}]) -> bpqueue()). --spec(to_list/1 :: (bpqueue()) -> [{prefix(), [value()]}]). --spec(map_fold_filter_l/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). --spec(map_fold_filter_r/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> {0, queue:new()}. - -is_empty({0, _Q}) -> true; -is_empty(_BPQ) -> false. - -len({N, _Q}) -> N. - -in(Prefix, Value, {0, Q}) -> - {1, queue:in({Prefix, queue:from_list([Value])}, Q)}; -in(Prefix, Value, BPQ) -> - in1({fun queue:in/2, fun queue:out_r/1}, Prefix, Value, BPQ). - -in_r(Prefix, Value, BPQ = {0, _Q}) -> - in(Prefix, Value, BPQ); -in_r(Prefix, Value, BPQ) -> - in1({fun queue:in_r/2, fun queue:out/1}, Prefix, Value, BPQ). - -in1({In, Out}, Prefix, Value, {N, Q}) -> - {N+1, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, In(Value, InnerQ)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, queue:in(Value, queue:new())}, Q) - end}. - -in_q(Prefix, Queue, BPQ = {0, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - N -> {N, queue:in({Prefix, Queue}, Q)} - end; -in_q(Prefix, Queue, BPQ) -> - in_q1({fun queue:in/2, fun queue:out_r/1, - fun queue:join/2}, - Prefix, Queue, BPQ). - -in_q_r(Prefix, Queue, BPQ = {0, _Q}) -> - in_q(Prefix, Queue, BPQ); -in_q_r(Prefix, Queue, BPQ) -> - in_q1({fun queue:in_r/2, fun queue:out/1, - fun (T, H) -> queue:join(H, T) end}, - Prefix, Queue, BPQ). - -in_q1({In, Out, Join}, Prefix, Queue, BPQ = {N, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - M -> {N + M, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, Join(InnerQ, Queue)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, Queue}, Q) - end} - end. - -out({0, _Q} = BPQ) -> {empty, BPQ}; -out(BPQ) -> out1({fun queue:in_r/2, fun queue:out/1}, BPQ). - -out_r({0, _Q} = BPQ) -> {empty, BPQ}; -out_r(BPQ) -> out1({fun queue:in/2, fun queue:out_r/1}, BPQ). - -out1({In, Out}, {N, Q}) -> - {{value, {Prefix, InnerQ}}, Q1} = Out(Q), - {{value, Value}, InnerQ1} = Out(InnerQ), - Q2 = case queue:is_empty(InnerQ1) of - true -> Q1; - false -> In({Prefix, InnerQ1}, Q1) - end, - {{value, Prefix, Value}, {N-1, Q2}}. - -join({0, _Q}, BPQ) -> - BPQ; -join(BPQ, {0, _Q}) -> - BPQ; -join({NHead, QHead}, {NTail, QTail}) -> - {{value, {Prefix, InnerQHead}}, QHead1} = queue:out_r(QHead), - {NHead + NTail, - case queue:out(QTail) of - {{value, {Prefix, InnerQTail}}, QTail1} -> - queue:join( - queue:in({Prefix, queue:join(InnerQHead, InnerQTail)}, QHead1), - QTail1); - {{value, {_Prefix, _InnerQTail}}, _QTail1} -> - queue:join(QHead, QTail) - end}. - -foldl(_Fun, Init, {0, _Q}) -> Init; -foldl( Fun, Init, {_N, Q}) -> fold1(fun queue:out/1, Fun, Init, Q). - -foldr(_Fun, Init, {0, _Q}) -> Init; -foldr( Fun, Init, {_N, Q}) -> fold1(fun queue:out_r/1, Fun, Init, Q). - -fold1(Out, Fun, Init, Q) -> - case Out(Q) of - {empty, _Q} -> - Init; - {{value, {Prefix, InnerQ}}, Q1} -> - fold1(Out, Fun, fold1(Out, Fun, Prefix, Init, InnerQ), Q1) - end. - -fold1(Out, Fun, Prefix, Init, InnerQ) -> - case Out(InnerQ) of - {empty, _Q} -> - Init; - {{value, Value}, InnerQ1} -> - fold1(Out, Fun, Prefix, Fun(Prefix, Value, Init), InnerQ1) - end. - -from_list(List) -> - {FinalPrefix, FinalInnerQ, ListOfPQs1, Len} = - lists:foldl( - fun ({_Prefix, []}, Acc) -> - Acc; - ({Prefix, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix, queue:join(InnerQ, queue:from_list(InnerList)), - ListOfPQs, LenAcc + length(InnerList)}; - ({Prefix1, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix1, queue:from_list(InnerList), - [{Prefix, InnerQ} | ListOfPQs], LenAcc + length(InnerList)} - end, {undefined, queue:new(), [], 0}, List), - ListOfPQs2 = [{FinalPrefix, FinalInnerQ} | ListOfPQs1], - [{undefined, InnerQ1} | Rest] = All = lists:reverse(ListOfPQs2), - {Len, queue:from_list(case queue:is_empty(InnerQ1) of - true -> Rest; - false -> All - end)}. - -to_list({0, _Q}) -> []; -to_list({_N, Q}) -> [{Prefix, queue:to_list(InnerQ)} || - {Prefix, InnerQ} <- queue:to_list(Q)]. - -%% map_fold_filter_[lr](FilterFun, Fun, Init, BPQ) -> {BPQ, Init} -%% where FilterFun(Prefix) -> boolean() -%% Fun(Value, Init) -> {Prefix, Value, Init} | stop -%% -%% The filter fun allows you to skip very quickly over blocks that -%% you're not interested in. Such blocks appear in the resulting bpq -%% without modification. The Fun is then used both to map the value, -%% which also allows you to change the prefix (and thus block) of the -%% value, and also to modify the Init/Acc (just like a fold). If the -%% Fun returns 'stop' then it is not applied to any further items. -map_fold_filter_l(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_l(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out/1, fun queue:in/2, - fun in_q/3, fun join/2}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter_r(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_r(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out_r/1, fun queue:in_r/2, - fun in_q_r/3, fun (T, H) -> join(H, T) end}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter1(Funs = {Out, _In, InQ, Join}, Len, PFilter, Fun, - Init, Q, QNew) -> - case Out(Q) of - {empty, _Q} -> - {QNew, Init}; - {{value, {Prefix, InnerQ}}, Q1} -> - case PFilter(Prefix) of - true -> - {Init1, QNew1, Cont} = - map_fold_filter2(Funs, Fun, Prefix, Prefix, - Init, InnerQ, QNew, queue:new()), - case Cont of - false -> {Join(QNew1, {Len - len(QNew1), Q1}), Init1}; - true -> map_fold_filter1(Funs, Len, PFilter, Fun, - Init1, Q1, QNew1) - end; - false -> - map_fold_filter1(Funs, Len, PFilter, Fun, - Init, Q1, InQ(Prefix, InnerQ, QNew)) - end - end. - -map_fold_filter2(Funs = {Out, In, InQ, _Join}, Fun, OrigPrefix, Prefix, - Init, InnerQ, QNew, InnerQNew) -> - case Out(InnerQ) of - {empty, _Q} -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), true}; - {{value, Value}, InnerQ1} -> - case Fun(Value, Init) of - stop -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), false}; - {Prefix1, Value1, Init1} -> - {Prefix2, QNew1, InnerQNew1} = - case Prefix1 =:= Prefix of - true -> {Prefix, QNew, In(Value1, InnerQNew)}; - false -> {Prefix1, InQ(Prefix, InnerQNew, QNew), - In(Value1, queue:new())} - end, - map_fold_filter2(Funs, Fun, OrigPrefix, Prefix2, - Init1, InnerQ1, QNew1, InnerQNew1) - end - end. diff --git a/src/delegate.erl b/src/delegate.erl deleted file mode 100644 index 17046201..00000000 --- a/src/delegate.erl +++ /dev/null @@ -1,154 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate). - --behaviour(gen_server2). - --export([start_link/1, invoke_no_result/2, invoke/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: - (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). --spec(invoke_no_result/2 :: - (pid() | [pid()], fun ((pid()) -> any())) -> 'ok'). --spec(invoke/2 :: - ( pid(), fun ((pid()) -> A)) -> A; - ([pid()], fun ((pid()) -> A)) -> {[{pid(), A}], - [{pid(), term()}]}). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(Num) -> - gen_server2:start_link({local, delegate_name(Num)}, ?MODULE, [], []). - -invoke(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - Fun(Pid); -invoke(Pid, Fun) when is_pid(Pid) -> - case invoke([Pid], Fun) of - {[{Pid, Result}], []} -> - Result; - {[], [{Pid, {Class, Reason, StackTrace}}]} -> - erlang:raise(Class, Reason, StackTrace) - end; - -invoke(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - %% The use of multi_call is only safe because the timeout is - %% infinity, and thus there is no process spawned in order to do - %% the sending. Thus calls can't overtake preceding calls/casts. - {Replies, BadNodes} = - case orddict:fetch_keys(Grouped) of - [] -> {[], []}; - RemoteNodes -> gen_server2:multi_call( - RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}, infinity) - end, - BadPids = [{Pid, {exit, {nodedown, BadNode}, []}} || - BadNode <- BadNodes, - Pid <- orddict:fetch(BadNode, Grouped)], - ResultsNoNode = lists:append([safe_invoke(LocalPids, Fun) | - [Results || {_Node, Results} <- Replies]]), - lists:foldl( - fun ({ok, Pid, Result}, {Good, Bad}) -> {[{Pid, Result} | Good], Bad}; - ({error, Pid, Error}, {Good, Bad}) -> {Good, [{Pid, Error} | Bad]} - end, {[], BadPids}, ResultsNoNode). - -invoke_no_result(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - safe_invoke(Pid, Fun), %% we don't care about any error - ok; -invoke_no_result(Pid, Fun) when is_pid(Pid) -> - invoke_no_result([Pid], Fun); - -invoke_no_result(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - case orddict:fetch_keys(Grouped) of - [] -> ok; - RemoteNodes -> gen_server2:abcast(RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}) - end, - safe_invoke(LocalPids, Fun), %% must not die - ok. - -%%---------------------------------------------------------------------------- - -group_pids_by_node(Pids) -> - LocalNode = node(), - lists:foldl( - fun (Pid, {Local, Remote}) when node(Pid) =:= LocalNode -> - {[Pid | Local], Remote}; - (Pid, {Local, Remote}) -> - {Local, - orddict:update( - node(Pid), fun (List) -> [Pid | List] end, [Pid], Remote)} - end, {[], orddict:new()}, Pids). - -delegate_name(Hash) -> - list_to_atom("delegate_" ++ integer_to_list(Hash)). - -delegate(RemoteNodes) -> - case get(delegate) of - undefined -> Name = delegate_name( - erlang:phash2(self(), - delegate_sup:count(RemoteNodes))), - put(delegate, Name), - Name; - Name -> Name - end. - -safe_invoke(Pids, Fun) when is_list(Pids) -> - [safe_invoke(Pid, Fun) || Pid <- Pids]; -safe_invoke(Pid, Fun) when is_pid(Pid) -> - try - {ok, Pid, Fun(Pid)} - catch Class:Reason -> - {error, Pid, {Class, Reason, erlang:get_stacktrace()}} - end. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, node(), hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({invoke, Fun, Grouped}, _From, Node) -> - {reply, safe_invoke(orddict:fetch(Node, Grouped), Fun), Node, hibernate}. - -handle_cast({invoke, Fun, Grouped}, Node) -> - safe_invoke(orddict:fetch(Node, Grouped), Fun), - {noreply, Node, hibernate}. - -handle_info(_Info, Node) -> - {noreply, Node, hibernate}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, Node, _Extra) -> - {ok, Node}. diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl deleted file mode 100644 index fc693c7d..00000000 --- a/src/delegate_sup.erl +++ /dev/null @@ -1,59 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate_sup). - --behaviour(supervisor). - --export([start_link/1, count/1]). - --export([init/1]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (integer()) -> {'ok', pid()} | {'error', any()}). --spec(count/1 :: ([node()]) -> integer()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Count) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [Count]). - -count([]) -> - 1; -count([Node | Nodes]) -> - try - length(supervisor:which_children({?SERVER, Node})) - catch exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - count(Nodes); - exit:{R, _} when R =:= noproc; R =:= normal; R =:= shutdown; - R =:= nodedown -> - count(Nodes) - end. - -%%---------------------------------------------------------------------------- - -init([Count]) -> - {ok, {{one_for_one, 10, 10}, - [{Num, {delegate, start_link, [Num]}, - transient, 16#ffffffff, worker, [delegate]} || - Num <- lists:seq(0, Count - 1)]}}. diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl deleted file mode 100644 index f41815d0..00000000 --- a/src/file_handle_cache.erl +++ /dev/null @@ -1,1199 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(file_handle_cache). - -%% A File Handle Cache -%% -%% This extends a subset of the functionality of the Erlang file -%% module. In the below, we use "file handle" to specifically refer to -%% file handles, and "file descriptor" to refer to descriptors which -%% are not file handles, e.g. sockets. -%% -%% Some constraints -%% 1) This supports one writer, multiple readers per file. Nothing -%% else. -%% 2) Do not open the same file from different processes. Bad things -%% may happen, especially for writes. -%% 3) Writes are all appends. You cannot write to the middle of a -%% file, although you can truncate and then append if you want. -%% 4) Although there is a write buffer, there is no read buffer. Feel -%% free to use the read_ahead mode, but beware of the interaction -%% between that buffer and the write buffer. -%% -%% Some benefits -%% 1) You do not have to remember to call sync before close -%% 2) Buffering is much more flexible than with the plain file module, -%% and you can control when the buffer gets flushed out. This means -%% that you can rely on reads-after-writes working, without having to -%% call the expensive sync. -%% 3) Unnecessary calls to position and sync get optimised out. -%% 4) You can find out what your 'real' offset is, and what your -%% 'virtual' offset is (i.e. where the hdl really is, and where it -%% would be after the write buffer is written out). -%% 5) You can find out what the offset was when you last sync'd. -%% -%% There is also a server component which serves to limit the number -%% of open file descriptors. This is a hard limit: the server -%% component will ensure that clients do not have more file -%% descriptors open than it's configured to allow. -%% -%% On open, the client requests permission from the server to open the -%% required number of file handles. The server may ask the client to -%% close other file handles that it has open, or it may queue the -%% request and ask other clients to close file handles they have open -%% in order to satisfy the request. Requests are always satisfied in -%% the order they arrive, even if a latter request (for a small number -%% of file handles) can be satisfied before an earlier request (for a -%% larger number of file handles). On close, the client sends a -%% message to the server. These messages allow the server to keep -%% track of the number of open handles. The client also keeps a -%% gb_tree which is updated on every use of a file handle, mapping the -%% time at which the file handle was last used (timestamp) to the -%% handle. Thus the smallest key in this tree maps to the file handle -%% that has not been used for the longest amount of time. This -%% smallest key is included in the messages to the server. As such, -%% the server keeps track of when the least recently used file handle -%% was used *at the point of the most recent open or close* by each -%% client. -%% -%% Note that this data can go very out of date, by the client using -%% the least recently used handle. -%% -%% When the limit is exceeded (i.e. the number of open file handles is -%% at the limit and there are pending 'open' requests), the server -%% calculates the average age of the last reported least recently used -%% file handle of all the clients. It then tells all the clients to -%% close any handles not used for longer than this average, by -%% invoking the callback the client registered. The client should -%% receive this message and pass it into -%% set_maximum_since_use/1. However, it is highly possible this age -%% will be greater than the ages of all the handles the client knows -%% of because the client has used its file handles in the mean -%% time. Thus at this point the client reports to the server the -%% current timestamp at which its least recently used file handle was -%% last used. The server will check two seconds later that either it -%% is back under the limit, in which case all is well again, or if -%% not, it will calculate a new average age. Its data will be much -%% more recent now, and so it is very likely that when this is -%% communicated to the clients, the clients will close file handles. -%% (In extreme cases, where it's very likely that all clients have -%% used their open handles since they last sent in an update, which -%% would mean that the average will never cause any file handles to -%% be closed, the server can send out an average age of 0, resulting -%% in all available clients closing all their file handles.) -%% -%% Care is taken to ensure that (a) processes which are blocked -%% waiting for file descriptors to become available are not sent -%% requests to close file handles; and (b) given it is known how many -%% file handles a process has open, when the average age is forced to -%% 0, close messages are only sent to enough processes to release the -%% correct number of file handles and the list of processes is -%% randomly shuffled. This ensures we don't cause processes to -%% needlessly close file handles, and ensures that we don't always -%% make such requests of the same processes. -%% -%% The advantage of this scheme is that there is only communication -%% from the client to the server on open, close, and when in the -%% process of trying to reduce file handle usage. There is no -%% communication from the client to the server on normal file handle -%% operations. This scheme forms a feed-back loop - the server does -%% not care which file handles are closed, just that some are, and it -%% checks this repeatedly when over the limit. -%% -%% Handles which are closed as a result of the server are put into a -%% "soft-closed" state in which the handle is closed (data flushed out -%% and sync'd first) but the state is maintained. The handle will be -%% fully reopened again as soon as needed, thus users of this library -%% do not need to worry about their handles being closed by the server -%% - reopening them when necessary is handled transparently. -%% -%% The server also supports obtain and transfer. obtain/0 blocks until -%% a file descriptor is available, at which point the requesting -%% process is considered to 'own' one more descriptor. transfer/1 -%% transfers ownership of a file descriptor between processes. It is -%% non-blocking. Obtain is used to obtain permission to accept file -%% descriptors. Obtain has a lower limit, set by the ?OBTAIN_LIMIT/1 -%% macro. File handles can use the entire limit, but will be evicted -%% by obtain calls up to the point at which no more obtain calls can -%% be satisfied by the obtains limit. Thus there will always be some -%% capacity available for file handles. Processes that use obtain are -%% never asked to return them, and they are not managed in any way by -%% the server. It is simply a mechanism to ensure that processes that -%% need file descriptors such as sockets can do so in such a way that -%% the overall number of open file descriptors is managed. -%% -%% The callers of register_callback/3, obtain/0, and the argument of -%% transfer/1 are monitored, reducing the count of handles in use -%% appropriately when the processes terminate. - --behaviour(gen_server). - --export([register_callback/3]). --export([open/3, close/1, read/2, append/2, sync/1, position/2, truncate/1, - last_sync_offset/1, current_virtual_offset/1, current_raw_offset/1, - flush/1, copy/3, set_maximum_since_use/1, delete/1, clear/1]). --export([obtain/0, transfer/1, set_limit/1, get_limit/0, info_keys/0, info/0, - info/1]). --export([ulimit/0]). - --export([start_link/0, init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). --define(RESERVED_FOR_OTHERS, 100). - -%% Googling around suggests that Windows has a limit somewhere around -%% 16M, eg -%% http://blogs.technet.com/markrussinovich/archive/2009/09/29/3283844.aspx -%% however, it turns out that's only available through the win32 -%% API. Via the C Runtime, we have just 512: -%% http://msdn.microsoft.com/en-us/library/6e3b887c%28VS.80%29.aspx --define(FILE_HANDLES_LIMIT_WINDOWS, 512). --define(FILE_HANDLES_LIMIT_OTHER, 1024). --define(FILE_HANDLES_CHECK_INTERVAL, 2000). - --define(OBTAIN_LIMIT(LIMIT), trunc((LIMIT * 0.9) - 2)). --define(CLIENT_ETS_TABLE, ?MODULE). - -%%---------------------------------------------------------------------------- - --record(file, - { reader_count, - has_writer - }). - --record(handle, - { hdl, - offset, - trusted_offset, - is_dirty, - write_buffer_size, - write_buffer_size_limit, - write_buffer, - at_eof, - path, - mode, - options, - is_write, - is_read, - last_used_at - }). - --record(fhc_state, - { elders, - limit, - open_count, - open_pending, - obtain_limit, - obtain_count, - obtain_pending, - clients, - timer_ref - }). - --record(cstate, - { pid, - callback, - opened, - obtained, - blocked, - pending_closes - }). - --record(pending, - { kind, - pid, - requested, - from - }). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(ref() :: any()). --type(ok_or_error() :: 'ok' | {'error', any()}). --type(val_or_error(T) :: {'ok', T} | {'error', any()}). --type(position() :: ('bof' | 'eof' | non_neg_integer() | - {('bof' |'eof'), non_neg_integer()} | - {'cur', integer()})). --type(offset() :: non_neg_integer()). - --spec(register_callback/3 :: (atom(), atom(), [any()]) -> 'ok'). --spec(open/3 :: - (string(), [any()], - [{'write_buffer', (non_neg_integer() | 'infinity' | 'unbuffered')}]) - -> val_or_error(ref())). --spec(close/1 :: (ref()) -> ok_or_error()). --spec(read/2 :: (ref(), non_neg_integer()) -> - val_or_error([char()] | binary()) | 'eof'). --spec(append/2 :: (ref(), iodata()) -> ok_or_error()). --spec(sync/1 :: (ref()) -> ok_or_error()). --spec(position/2 :: (ref(), position()) -> val_or_error(offset())). --spec(truncate/1 :: (ref()) -> ok_or_error()). --spec(last_sync_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_virtual_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_raw_offset/1 :: (ref()) -> val_or_error(offset())). --spec(flush/1 :: (ref()) -> ok_or_error()). --spec(copy/3 :: (ref(), ref(), non_neg_integer()) -> - val_or_error(non_neg_integer())). --spec(set_maximum_since_use/1 :: (non_neg_integer()) -> 'ok'). --spec(delete/1 :: (ref()) -> ok_or_error()). --spec(clear/1 :: (ref()) -> ok_or_error()). --spec(obtain/0 :: () -> 'ok'). --spec(transfer/1 :: (pid()) -> 'ok'). --spec(set_limit/1 :: (non_neg_integer()) -> 'ok'). --spec(get_limit/0 :: () -> non_neg_integer()). --spec(info_keys/0 :: () -> [atom()]). --spec(info/0 :: () -> [{atom(), any()}]). --spec(info/1 :: ([atom()]) -> [{atom(), any()}]). --spec(ulimit/0 :: () -> 'infinity' | 'unknown' | non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- --define(INFO_KEYS, [obtain_count, obtain_limit]). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], [{timeout, infinity}]). - -register_callback(M, F, A) - when is_atom(M) andalso is_atom(F) andalso is_list(A) -> - gen_server:cast(?SERVER, {register_callback, self(), {M, F, A}}). - -open(Path, Mode, Options) -> - Path1 = filename:absname(Path), - File1 = #file { reader_count = RCount, has_writer = HasWriter } = - case get({Path1, fhc_file}) of - File = #file {} -> File; - undefined -> #file { reader_count = 0, - has_writer = false } - end, - Mode1 = append_to_write(Mode), - IsWriter = is_writer(Mode1), - case IsWriter andalso HasWriter of - true -> {error, writer_exists}; - false -> {ok, Ref} = new_closed_handle(Path1, Mode1, Options), - case get_or_reopen([{Ref, new}]) of - {ok, [_Handle1]} -> - RCount1 = case is_reader(Mode1) of - true -> RCount + 1; - false -> RCount - end, - HasWriter1 = HasWriter orelse IsWriter, - put({Path1, fhc_file}, - File1 #file { reader_count = RCount1, - has_writer = HasWriter1 }), - {ok, Ref}; - Error -> - erase({Ref, fhc_handle}), - Error - end - end. - -close(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> ok; - Handle -> case hard_close(Handle) of - ok -> ok; - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -read(Ref, Count) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_read = false }]) -> - {error, not_open_for_reading}; - ([Handle = #handle { hdl = Hdl, offset = Offset }]) -> - case file:read(Hdl, Count) of - {ok, Data} = Obj -> Offset1 = Offset + iolist_size(Data), - {Obj, - [Handle #handle { offset = Offset1 }]}; - eof -> {eof, [Handle #handle { at_eof = true }]}; - Error -> {Error, [Handle]} - end - end). - -append(Ref, Data) -> - with_handles( - [Ref], - fun ([#handle { is_write = false }]) -> - {error, not_open_for_writing}; - ([Handle]) -> - case maybe_seek(eof, Handle) of - {{ok, _Offset}, #handle { hdl = Hdl, offset = Offset, - write_buffer_size_limit = 0, - at_eof = true } = Handle1} -> - Offset1 = Offset + iolist_size(Data), - {file:write(Hdl, Data), - [Handle1 #handle { is_dirty = true, offset = Offset1 }]}; - {{ok, _Offset}, #handle { write_buffer = WriteBuffer, - write_buffer_size = Size, - write_buffer_size_limit = Limit, - at_eof = true } = Handle1} -> - WriteBuffer1 = [Data | WriteBuffer], - Size1 = Size + iolist_size(Data), - Handle2 = Handle1 #handle { write_buffer = WriteBuffer1, - write_buffer_size = Size1 }, - case Limit =/= infinity andalso Size1 > Limit of - true -> {Result, Handle3} = write_buffer(Handle2), - {Result, [Handle3]}; - false -> {ok, [Handle2]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -sync(Ref) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_dirty = false, write_buffer = [] }]) -> - ok; - ([Handle = #handle { hdl = Hdl, offset = Offset, - is_dirty = true, write_buffer = [] }]) -> - case file:sync(Hdl) of - ok -> {ok, [Handle #handle { trusted_offset = Offset, - is_dirty = false }]}; - Error -> {Error, [Handle]} - end - end). - -position(Ref, NewOffset) -> - with_flushed_handles( - [Ref], - fun ([Handle]) -> {Result, Handle1} = maybe_seek(NewOffset, Handle), - {Result, [Handle1]} - end). - -truncate(Ref) -> - with_flushed_handles( - [Ref], - fun ([Handle1 = #handle { hdl = Hdl, offset = Offset, - trusted_offset = TOffset }]) -> - case file:truncate(Hdl) of - ok -> TOffset1 = lists:min([Offset, TOffset]), - {ok, [Handle1 #handle { trusted_offset = TOffset1, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end - end). - -last_sync_offset(Ref) -> - with_handles([Ref], fun ([#handle { trusted_offset = TOffset }]) -> - {ok, TOffset} - end). - -current_virtual_offset(Ref) -> - with_handles([Ref], fun ([#handle { at_eof = true, is_write = true, - offset = Offset, - write_buffer_size = Size }]) -> - {ok, Offset + Size}; - ([#handle { offset = Offset }]) -> - {ok, Offset} - end). - -current_raw_offset(Ref) -> - with_handles([Ref], fun ([Handle]) -> {ok, Handle #handle.offset} end). - -flush(Ref) -> - with_flushed_handles([Ref], fun ([Handle]) -> {ok, [Handle]} end). - -copy(Src, Dest, Count) -> - with_flushed_handles( - [Src, Dest], - fun ([SHandle = #handle { is_read = true, hdl = SHdl, offset = SOffset }, - DHandle = #handle { is_write = true, hdl = DHdl, offset = DOffset }] - ) -> - case file:copy(SHdl, DHdl, Count) of - {ok, Count1} = Result1 -> - {Result1, - [SHandle #handle { offset = SOffset + Count1 }, - DHandle #handle { offset = DOffset + Count1, - is_dirty = true }]}; - Error -> - {Error, [SHandle, DHandle]} - end; - (_Handles) -> - {error, incorrect_handle_modes} - end). - -delete(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> - ok; - Handle = #handle { path = Path } -> - case hard_close(Handle #handle { is_dirty = false, - write_buffer = [] }) of - ok -> file:delete(Path); - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -clear(Ref) -> - with_handles( - [Ref], - fun ([#handle { at_eof = true, write_buffer_size = 0, offset = 0 }]) -> - ok; - ([Handle]) -> - case maybe_seek(bof, Handle #handle { write_buffer = [], - write_buffer_size = 0 }) of - {{ok, 0}, Handle1 = #handle { hdl = Hdl }} -> - case file:truncate(Hdl) of - ok -> {ok, [Handle1 #handle {trusted_offset = 0, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -set_maximum_since_use(MaximumAge) -> - Now = now(), - case lists:foldl( - fun ({{Ref, fhc_handle}, - Handle = #handle { hdl = Hdl, last_used_at = Then }}, Rep) -> - case Hdl =/= closed andalso - timer:now_diff(Now, Then) >= MaximumAge of - true -> soft_close(Ref, Handle) orelse Rep; - false -> Rep - end; - (_KeyValuePair, Rep) -> - Rep - end, false, get()) of - false -> age_tree_change(), ok; - true -> ok - end. - -obtain() -> - gen_server:call(?SERVER, {obtain, self()}, infinity). - -transfer(Pid) -> - gen_server:cast(?SERVER, {transfer, self(), Pid}). - -set_limit(Limit) -> - gen_server:call(?SERVER, {set_limit, Limit}, infinity). - -get_limit() -> - gen_server:call(?SERVER, get_limit, infinity). - -info_keys() -> ?INFO_KEYS. - -info() -> info(?INFO_KEYS). -info(Items) -> gen_server:call(?SERVER, {info, Items}, infinity). - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -is_reader(Mode) -> lists:member(read, Mode). - -is_writer(Mode) -> lists:member(write, Mode). - -append_to_write(Mode) -> - case lists:member(append, Mode) of - true -> [write | Mode -- [append, write]]; - false -> Mode - end. - -with_handles(Refs, Fun) -> - case get_or_reopen([{Ref, reopen} || Ref <- Refs]) of - {ok, Handles} -> - case Fun(Handles) of - {Result, Handles1} when is_list(Handles1) -> - lists:zipwith(fun put_handle/2, Refs, Handles1), - Result; - Result -> - Result - end; - Error -> - Error - end. - -with_flushed_handles(Refs, Fun) -> - with_handles( - Refs, - fun (Handles) -> - case lists:foldl( - fun (Handle, {ok, HandlesAcc}) -> - {Res, Handle1} = write_buffer(Handle), - {Res, [Handle1 | HandlesAcc]}; - (Handle, {Error, HandlesAcc}) -> - {Error, [Handle | HandlesAcc]} - end, {ok, []}, Handles) of - {ok, Handles1} -> - Fun(lists:reverse(Handles1)); - {Error, Handles1} -> - {Error, lists:reverse(Handles1)} - end - end). - -get_or_reopen(RefNewOrReopens) -> - case partition_handles(RefNewOrReopens) of - {OpenHdls, []} -> - {ok, [Handle || {_Ref, Handle} <- OpenHdls]}; - {OpenHdls, ClosedHdls} -> - Oldest = oldest(get_age_tree(), fun () -> now() end), - case gen_server:call(?SERVER, {open, self(), length(ClosedHdls), - Oldest}, infinity) of - ok -> - case reopen(ClosedHdls) of - {ok, RefHdls} -> sort_handles(RefNewOrReopens, - OpenHdls, RefHdls, []); - Error -> Error - end; - close -> - [soft_close(Ref, Handle) || - {{Ref, fhc_handle}, Handle = #handle { hdl = Hdl }} <- - get(), - Hdl =/= closed], - get_or_reopen(RefNewOrReopens) - end - end. - -reopen(ClosedHdls) -> reopen(ClosedHdls, get_age_tree(), []). - -reopen([], Tree, RefHdls) -> - put_age_tree(Tree), - {ok, lists:reverse(RefHdls)}; -reopen([{Ref, NewOrReopen, Handle = #handle { hdl = closed, - path = Path, - mode = Mode, - offset = Offset, - last_used_at = undefined }} | - RefNewOrReopenHdls] = ToOpen, Tree, RefHdls) -> - case file:open(Path, case NewOrReopen of - new -> Mode; - reopen -> [read | Mode] - end) of - {ok, Hdl} -> - Now = now(), - {{ok, Offset1}, Handle1} = - maybe_seek(Offset, Handle #handle { hdl = Hdl, - offset = 0, - last_used_at = Now }), - Handle2 = Handle1 #handle { trusted_offset = Offset1 }, - put({Ref, fhc_handle}, Handle2), - reopen(RefNewOrReopenHdls, gb_trees:insert(Now, Ref, Tree), - [{Ref, Handle2} | RefHdls]); - Error -> - %% NB: none of the handles in ToOpen are in the age tree - Oldest = oldest(Tree, fun () -> undefined end), - [gen_server:cast(?SERVER, {close, self(), Oldest}) || _ <- ToOpen], - put_age_tree(Tree), - Error - end. - -partition_handles(RefNewOrReopens) -> - lists:foldr( - fun ({Ref, NewOrReopen}, {Open, Closed}) -> - case get({Ref, fhc_handle}) of - #handle { hdl = closed } = Handle -> - {Open, [{Ref, NewOrReopen, Handle} | Closed]}; - #handle {} = Handle -> - {[{Ref, Handle} | Open], Closed} - end - end, {[], []}, RefNewOrReopens). - -sort_handles([], [], [], Acc) -> - {ok, lists:reverse(Acc)}; -sort_handles([{Ref, _} | RefHdls], [{Ref, Handle} | RefHdlsA], RefHdlsB, Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]); -sort_handles([{Ref, _} | RefHdls], RefHdlsA, [{Ref, Handle} | RefHdlsB], Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]). - -put_handle(Ref, Handle = #handle { last_used_at = Then }) -> - Now = now(), - age_tree_update(Then, Now, Ref), - put({Ref, fhc_handle}, Handle #handle { last_used_at = Now }). - -with_age_tree(Fun) -> put_age_tree(Fun(get_age_tree())). - -get_age_tree() -> - case get(fhc_age_tree) of - undefined -> gb_trees:empty(); - AgeTree -> AgeTree - end. - -put_age_tree(Tree) -> put(fhc_age_tree, Tree). - -age_tree_update(Then, Now, Ref) -> - with_age_tree( - fun (Tree) -> - gb_trees:insert(Now, Ref, gb_trees:delete_any(Then, Tree)) - end). - -age_tree_delete(Then) -> - with_age_tree( - fun (Tree) -> - Tree1 = gb_trees:delete_any(Then, Tree), - Oldest = oldest(Tree1, fun () -> undefined end), - gen_server:cast(?SERVER, {close, self(), Oldest}), - Tree1 - end). - -age_tree_change() -> - with_age_tree( - fun (Tree) -> - case gb_trees:is_empty(Tree) of - true -> Tree; - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - gen_server:cast(?SERVER, {update, self(), Oldest}) - end, - Tree - end). - -oldest(Tree, DefaultFun) -> - case gb_trees:is_empty(Tree) of - true -> DefaultFun(); - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - Oldest - end. - -new_closed_handle(Path, Mode, Options) -> - WriteBufferSize = - case proplists:get_value(write_buffer, Options, unbuffered) of - unbuffered -> 0; - infinity -> infinity; - N when is_integer(N) -> N - end, - Ref = make_ref(), - put({Ref, fhc_handle}, #handle { hdl = closed, - offset = 0, - trusted_offset = 0, - is_dirty = false, - write_buffer_size = 0, - write_buffer_size_limit = WriteBufferSize, - write_buffer = [], - at_eof = false, - path = Path, - mode = Mode, - options = Options, - is_write = is_writer(Mode), - is_read = is_reader(Mode), - last_used_at = undefined }), - {ok, Ref}. - -soft_close(Ref, Handle) -> - {Res, Handle1} = soft_close(Handle), - case Res of - ok -> put({Ref, fhc_handle}, Handle1), - true; - _ -> put_handle(Ref, Handle1), - false - end. - -soft_close(Handle = #handle { hdl = closed }) -> - {ok, Handle}; -soft_close(Handle) -> - case write_buffer(Handle) of - {ok, #handle { hdl = Hdl, - offset = Offset, - is_dirty = IsDirty, - last_used_at = Then } = Handle1 } -> - ok = case IsDirty of - true -> file:sync(Hdl); - false -> ok - end, - ok = file:close(Hdl), - age_tree_delete(Then), - {ok, Handle1 #handle { hdl = closed, - trusted_offset = Offset, - is_dirty = false, - last_used_at = undefined }}; - {_Error, _Handle} = Result -> - Result - end. - -hard_close(Handle) -> - case soft_close(Handle) of - {ok, #handle { path = Path, - is_read = IsReader, is_write = IsWriter }} -> - #file { reader_count = RCount, has_writer = HasWriter } = File = - get({Path, fhc_file}), - RCount1 = case IsReader of - true -> RCount - 1; - false -> RCount - end, - HasWriter1 = HasWriter andalso not IsWriter, - case RCount1 =:= 0 andalso not HasWriter1 of - true -> erase({Path, fhc_file}); - false -> put({Path, fhc_file}, - File #file { reader_count = RCount1, - has_writer = HasWriter1 }) - end, - ok; - {_Error, _Handle} = Result -> - Result - end. - -maybe_seek(NewOffset, Handle = #handle { hdl = Hdl, offset = Offset, - at_eof = AtEoF }) -> - {AtEoF1, NeedsSeek} = needs_seek(AtEoF, Offset, NewOffset), - case (case NeedsSeek of - true -> file:position(Hdl, NewOffset); - false -> {ok, Offset} - end) of - {ok, Offset1} = Result -> - {Result, Handle #handle { offset = Offset1, at_eof = AtEoF1 }}; - {error, _} = Error -> - {Error, Handle} - end. - -needs_seek( AtEoF, _CurOffset, cur ) -> {AtEoF, false}; -needs_seek( AtEoF, _CurOffset, {cur, 0}) -> {AtEoF, false}; -needs_seek( true, _CurOffset, eof ) -> {true , false}; -needs_seek( true, _CurOffset, {eof, 0}) -> {true , false}; -needs_seek( false, _CurOffset, eof ) -> {true , true }; -needs_seek( false, _CurOffset, {eof, 0}) -> {true , true }; -needs_seek( AtEoF, 0, bof ) -> {AtEoF, false}; -needs_seek( AtEoF, 0, {bof, 0}) -> {AtEoF, false}; -needs_seek( AtEoF, CurOffset, CurOffset) -> {AtEoF, false}; -needs_seek( true, CurOffset, {bof, DesiredOffset}) - when DesiredOffset >= CurOffset -> - {true, true}; -needs_seek( true, _CurOffset, {cur, DesiredOffset}) - when DesiredOffset > 0 -> - {true, true}; -needs_seek( true, CurOffset, DesiredOffset) %% same as {bof, DO} - when is_integer(DesiredOffset) andalso DesiredOffset >= CurOffset -> - {true, true}; -%% because we can't really track size, we could well end up at EoF and not know -needs_seek(_AtEoF, _CurOffset, _DesiredOffset) -> - {false, true}. - -write_buffer(Handle = #handle { write_buffer = [] }) -> - {ok, Handle}; -write_buffer(Handle = #handle { hdl = Hdl, offset = Offset, - write_buffer = WriteBuffer, - write_buffer_size = DataSize, - at_eof = true }) -> - case file:write(Hdl, lists:reverse(WriteBuffer)) of - ok -> - Offset1 = Offset + DataSize, - {ok, Handle #handle { offset = Offset1, is_dirty = true, - write_buffer = [], write_buffer_size = 0 }}; - {error, _} = Error -> - {Error, Handle} - end. - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(obtain_count, #fhc_state{obtain_count = Count}) -> Count; -i(obtain_limit, #fhc_state{obtain_limit = Limit}) -> Limit; -i(Item, _) -> throw({bad_argument, Item}). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - Limit = case application:get_env(file_handles_high_watermark) of - {ok, Watermark} when (is_integer(Watermark) andalso - Watermark > 0) -> - Watermark; - _ -> - case ulimit() of - infinity -> infinity; - unknown -> ?FILE_HANDLES_LIMIT_OTHER; - Lim -> lists:max([2, Lim - ?RESERVED_FOR_OTHERS]) - end - end, - ObtainLimit = obtain_limit(Limit), - error_logger:info_msg("Limiting to approx ~p file handles (~p sockets)~n", - [Limit, ObtainLimit]), - Clients = ets:new(?CLIENT_ETS_TABLE, [set, private, {keypos, #cstate.pid}]), - {ok, #fhc_state { elders = dict:new(), - limit = Limit, - open_count = 0, - open_pending = pending_new(), - obtain_limit = ObtainLimit, - obtain_count = 0, - obtain_pending = pending_new(), - clients = Clients, - timer_ref = undefined }}. - -handle_call({open, Pid, Requested, EldestUnusedSince}, From, - State = #fhc_state { open_count = Count, - open_pending = Pending, - elders = Elders, - clients = Clients }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - Item = #pending { kind = open, - pid = Pid, - requested = Requested, - from = From }, - ok = track_client(Pid, Clients), - State1 = State #fhc_state { elders = Elders1 }, - case needs_reduce(State1 #fhc_state { open_count = Count + Requested }) of - true -> case ets:lookup(Clients, Pid) of - [#cstate { opened = 0 }] -> - true = ets:update_element( - Clients, Pid, {#cstate.blocked, true}), - {noreply, - reduce(State1 #fhc_state { - open_pending = pending_in(Item, Pending) })}; - [#cstate { opened = Opened }] -> - true = ets:update_element( - Clients, Pid, - {#cstate.pending_closes, Opened}), - {reply, close, State1} - end; - false -> {noreply, run_pending_item(Item, State1)} - end; - -handle_call({obtain, Pid}, From, State = #fhc_state { obtain_limit = Limit, - obtain_count = Count, - obtain_pending = Pending, - clients = Clients }) - when Limit =/= infinity andalso Count >= Limit -> - ok = track_client(Pid, Clients), - true = ets:update_element(Clients, Pid, {#cstate.blocked, true}), - Item = #pending { kind = obtain, pid = Pid, requested = 1, from = From }, - {noreply, State #fhc_state { obtain_pending = pending_in(Item, Pending) }}; -handle_call({obtain, Pid}, From, State = #fhc_state { obtain_count = Count, - obtain_pending = Pending, - clients = Clients }) -> - Item = #pending { kind = obtain, pid = Pid, requested = 1, from = From }, - ok = track_client(Pid, Clients), - case needs_reduce(State #fhc_state { obtain_count = Count + 1 }) of - true -> - true = ets:update_element(Clients, Pid, {#cstate.blocked, true}), - {noreply, reduce(State #fhc_state { - obtain_pending = pending_in(Item, Pending) })}; - false -> - {noreply, run_pending_item(Item, State)} - end; - -handle_call({set_limit, Limit}, _From, State) -> - {reply, ok, maybe_reduce( - process_pending(State #fhc_state { - limit = Limit, - obtain_limit = obtain_limit(Limit) }))}; - -handle_call(get_limit, _From, State = #fhc_state { limit = Limit }) -> - {reply, Limit, State}; - -handle_call({info, Items}, _From, State) -> - {reply, infos(Items, State), State}. - -handle_cast({register_callback, Pid, MFA}, - State = #fhc_state { clients = Clients }) -> - ok = track_client(Pid, Clients), - true = ets:update_element(Clients, Pid, {#cstate.callback, MFA}), - {noreply, State}; - -handle_cast({update, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - %% don't call maybe_reduce from here otherwise we can create a - %% storm of messages - {noreply, State #fhc_state { elders = Elders1 }}; - -handle_cast({close, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders, clients = Clients }) -> - Elders1 = case EldestUnusedSince of - undefined -> dict:erase(Pid, Elders); - _ -> dict:store(Pid, EldestUnusedSince, Elders) - end, - ets:update_counter(Clients, Pid, {#cstate.pending_closes, -1, 0, 0}), - {noreply, process_pending( - update_counts(open, Pid, -1, - State #fhc_state { elders = Elders1 }))}; - -handle_cast({transfer, FromPid, ToPid}, State) -> - ok = track_client(ToPid, State#fhc_state.clients), - {noreply, process_pending( - update_counts(obtain, ToPid, +1, - update_counts(obtain, FromPid, -1, State)))}; - -handle_cast(check_counts, State) -> - {noreply, maybe_reduce(State #fhc_state { timer_ref = undefined })}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #fhc_state { elders = Elders, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_pending = ObtainPending, - clients = Clients }) -> - [#cstate { opened = Opened, obtained = Obtained }] = - ets:lookup(Clients, Pid), - true = ets:delete(Clients, Pid), - FilterFun = fun (#pending { pid = Pid1 }) -> Pid1 =/= Pid end, - {noreply, process_pending( - State #fhc_state { - open_count = OpenCount - Opened, - open_pending = filter_pending(FilterFun, OpenPending), - obtain_count = ObtainCount - Obtained, - obtain_pending = filter_pending(FilterFun, ObtainPending), - elders = dict:erase(Pid, Elders) })}. - -terminate(_Reason, State = #fhc_state { clients = Clients }) -> - ets:delete(Clients), - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% pending queue abstraction helpers -%%---------------------------------------------------------------------------- - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -filter_pending(Fun, {Count, Queue}) -> - {Delta, Queue1} = - queue_fold(fun (Item, {DeltaN, QueueN}) -> - case Fun(Item) of - true -> {DeltaN, queue:in(Item, QueueN)}; - false -> {DeltaN - requested(Item), QueueN} - end - end, {0, queue:new()}, Queue), - {Count + Delta, Queue1}. - -pending_new() -> - {0, queue:new()}. - -pending_in(Item = #pending { requested = Requested }, {Count, Queue}) -> - {Count + Requested, queue:in(Item, Queue)}. - -pending_out({0, _Queue} = Pending) -> - {empty, Pending}; -pending_out({N, Queue}) -> - {{value, #pending { requested = Requested }} = Result, Queue1} = - queue:out(Queue), - {Result, {N - Requested, Queue1}}. - -pending_count({Count, _Queue}) -> - Count. - -pending_is_empty({0, _Queue}) -> - true; -pending_is_empty({_N, _Queue}) -> - false. - -%%---------------------------------------------------------------------------- -%% server helpers -%%---------------------------------------------------------------------------- - -obtain_limit(infinity) -> infinity; -obtain_limit(Limit) -> case ?OBTAIN_LIMIT(Limit) of - OLimit when OLimit < 0 -> 0; - OLimit -> OLimit - end. - -requested({_Kind, _Pid, Requested, _From}) -> - Requested. - -process_pending(State = #fhc_state { limit = infinity }) -> - State; -process_pending(State) -> - process_open(process_obtain(State)). - -process_open(State = #fhc_state { limit = Limit, - open_pending = Pending, - open_count = OpenCount, - obtain_count = ObtainCount }) -> - {Pending1, State1} = - process_pending(Pending, Limit - (ObtainCount + OpenCount), State), - State1 #fhc_state { open_pending = Pending1 }. - -process_obtain(State = #fhc_state { limit = Limit, - obtain_pending = Pending, - obtain_limit = ObtainLimit, - obtain_count = ObtainCount, - open_count = OpenCount }) -> - Quota = lists:min([ObtainLimit - ObtainCount, - Limit - (ObtainCount + OpenCount)]), - {Pending1, State1} = process_pending(Pending, Quota, State), - State1 #fhc_state { obtain_pending = Pending1 }. - -process_pending(Pending, Quota, State) when Quota =< 0 -> - {Pending, State}; -process_pending(Pending, Quota, State) -> - case pending_out(Pending) of - {empty, _Pending} -> - {Pending, State}; - {{value, #pending { requested = Requested }}, _Pending1} - when Requested > Quota -> - {Pending, State}; - {{value, #pending { requested = Requested } = Item}, Pending1} -> - process_pending(Pending1, Quota - Requested, - run_pending_item(Item, State)) - end. - -run_pending_item(#pending { kind = Kind, - pid = Pid, - requested = Requested, - from = From }, - State = #fhc_state { clients = Clients }) -> - gen_server:reply(From, ok), - true = ets:update_element(Clients, Pid, {#cstate.blocked, false}), - update_counts(Kind, Pid, Requested, State). - -update_counts(Kind, Pid, Delta, - State = #fhc_state { open_count = OpenCount, - obtain_count = ObtainCount, - clients = Clients }) -> - {OpenDelta, ObtainDelta} = update_counts1(Kind, Pid, Delta, Clients), - State #fhc_state { open_count = OpenCount + OpenDelta, - obtain_count = ObtainCount + ObtainDelta }. - -update_counts1(open, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.opened, Delta}), - {Delta, 0}; -update_counts1(obtain, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.obtained, Delta}), - {0, Delta}. - -maybe_reduce(State) -> - case needs_reduce(State) of - true -> reduce(State); - false -> State - end. - -needs_reduce(#fhc_state { limit = Limit, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_limit = ObtainLimit, - obtain_pending = ObtainPending }) -> - Limit =/= infinity - andalso ((OpenCount + ObtainCount > Limit) - orelse (not pending_is_empty(OpenPending)) - orelse (ObtainCount < ObtainLimit - andalso not pending_is_empty(ObtainPending))). - -reduce(State = #fhc_state { open_pending = OpenPending, - obtain_pending = ObtainPending, - elders = Elders, - clients = Clients, - timer_ref = TRef }) -> - Now = now(), - {CStates, Sum, ClientCount} = - dict:fold(fun (Pid, Eldest, {CStatesAcc, SumAcc, CountAcc} = Accs) -> - [#cstate { pending_closes = PendingCloses, - opened = Opened, - blocked = Blocked } = CState] = - ets:lookup(Clients, Pid), - case Blocked orelse PendingCloses =:= Opened of - true -> Accs; - false -> {[CState | CStatesAcc], - SumAcc + timer:now_diff(Now, Eldest), - CountAcc + 1} - end - end, {[], 0, 0}, Elders), - case CStates of - [] -> ok; - _ -> case (Sum / ClientCount) - - (1000 * ?FILE_HANDLES_CHECK_INTERVAL) of - AverageAge when AverageAge > 0 -> - notify_age(CStates, AverageAge); - _ -> - notify_age0(Clients, CStates, - pending_count(OpenPending) + - pending_count(ObtainPending)) - end - end, - case TRef of - undefined -> {ok, TRef1} = timer:apply_after( - ?FILE_HANDLES_CHECK_INTERVAL, - gen_server, cast, [?SERVER, check_counts]), - State #fhc_state { timer_ref = TRef1 }; - _ -> State - end. - -notify_age(CStates, AverageAge) -> - lists:foreach( - fun (#cstate { callback = undefined }) -> ok; - (#cstate { callback = {M, F, A} }) -> apply(M, F, A ++ [AverageAge]) - end, CStates). - -notify_age0(Clients, CStates, Required) -> - Notifications = - [CState || CState <- CStates, CState#cstate.callback =/= undefined], - {L1, L2} = lists:split(random:uniform(length(Notifications)), - Notifications), - notify(Clients, Required, L2 ++ L1). - -notify(_Clients, _Required, []) -> - ok; -notify(_Clients, Required, _Notifications) when Required =< 0 -> - ok; -notify(Clients, Required, [#cstate{ pid = Pid, - callback = {M, F, A}, - opened = Opened } | Notifications]) -> - apply(M, F, A ++ [0]), - ets:update_element(Clients, Pid, {#cstate.pending_closes, Opened}), - notify(Clients, Required - Opened, Notifications). - -track_client(Pid, Clients) -> - case ets:insert_new(Clients, #cstate { pid = Pid, - callback = undefined, - opened = 0, - obtained = 0, - blocked = false, - pending_closes = 0 }) of - true -> _MRef = erlang:monitor(process, Pid), - ok; - false -> ok - end. - -%% For all unices, assume ulimit exists. Further googling suggests -%% that BSDs (incl OS X), solaris and linux all agree that ulimit -n -%% is file handles -ulimit() -> - case os:type() of - {win32, _OsName} -> - ?FILE_HANDLES_LIMIT_WINDOWS; - {unix, _OsName} -> - %% Under Linux, Solaris and FreeBSD, ulimit is a shell - %% builtin, not a command. In OS X and AIX it's a command. - %% Fortunately, os:cmd invokes the cmd in a shell env, so - %% we're safe in all cases. - case os:cmd("ulimit -n") of - "unlimited" -> - infinity; - String = [C|_] when $0 =< C andalso C =< $9 -> - list_to_integer( - lists:takewhile( - fun (D) -> $0 =< D andalso D =< $9 end, String)); - _ -> - %% probably a variant of - %% "/bin/sh: line 1: ulimit: command not found\n" - unknown - end; - _ -> - unknown - end. diff --git a/src/gatherer.erl b/src/gatherer.erl deleted file mode 100644 index aa43e9a9..00000000 --- a/src/gatherer.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gatherer). - --behaviour(gen_server2). - --export([start_link/0, stop/1, fork/1, finish/1, in/2, out/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(stop/1 :: (pid()) -> 'ok'). --spec(fork/1 :: (pid()) -> 'ok'). --spec(finish/1 :: (pid()) -> 'ok'). --spec(in/2 :: (pid(), any()) -> 'ok'). --spec(out/1 :: (pid()) -> {'value', any()} | 'empty'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - --record(gstate, { forks, values, blocked }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link(?MODULE, [], [{timeout, infinity}]). - -stop(Pid) -> - gen_server2:call(Pid, stop, infinity). - -fork(Pid) -> - gen_server2:call(Pid, fork, infinity). - -finish(Pid) -> - gen_server2:cast(Pid, finish). - -in(Pid, Value) -> - gen_server2:cast(Pid, {in, Value}). - -out(Pid) -> - gen_server2:call(Pid, out, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #gstate { forks = 0, values = queue:new(), blocked = queue:new() }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; - -handle_call(fork, _From, State = #gstate { forks = Forks }) -> - {reply, ok, State #gstate { forks = Forks + 1 }, hibernate}; - -handle_call(out, From, State = #gstate { forks = Forks, - values = Values, - blocked = Blocked }) -> - case queue:out(Values) of - {empty, _} -> - case Forks of - 0 -> {reply, empty, State, hibernate}; - _ -> {noreply, - State #gstate { blocked = queue:in(From, Blocked) }, - hibernate} - end; - {{value, _Value} = V, NewValues} -> - {reply, V, State #gstate { values = NewValues }, hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast(finish, State = #gstate { forks = Forks, blocked = Blocked }) -> - NewForks = Forks - 1, - NewBlocked = case NewForks of - 0 -> [gen_server2:reply(From, empty) || - From <- queue:to_list(Blocked)], - queue:new(); - _ -> Blocked - end, - {noreply, State #gstate { forks = NewForks, blocked = NewBlocked }, - hibernate}; - -handle_cast({in, Value}, State = #gstate { values = Values, - blocked = Blocked }) -> - {noreply, case queue:out(Blocked) of - {empty, _} -> - State #gstate { values = queue:in(Value, Values) }; - {{value, From}, NewBlocked} -> - gen_server2:reply(From, {value, Value}), - State #gstate { blocked = NewBlocked } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. diff --git a/src/gen_server2.erl b/src/gen_server2.erl deleted file mode 100644 index 94296f97..00000000 --- a/src/gen_server2.erl +++ /dev/null @@ -1,1177 +0,0 @@ -%% This file is a copy of gen_server.erl from the R13B-1 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is gen_server2 -%% -%% 2) more efficient handling of selective receives in callbacks -%% gen_server2 processes drain their message queue into an internal -%% buffer before invoking any callback module functions. Messages are -%% dequeued from the buffer for processing. Thus the effective message -%% queue of a gen_server2 process is the concatenation of the internal -%% buffer and the real message queue. -%% As a result of the draining, any selective receive invoked inside a -%% callback is less likely to have to scan a large message queue. -%% -%% 3) gen_server2:cast is guaranteed to be order-preserving -%% The original code could reorder messages when communicating with a -%% process on a remote node that was not currently connected. -%% -%% 4) The callback module can optionally implement prioritise_call/3, -%% prioritise_cast/2 and prioritise_info/2. These functions take -%% Message, From and State or just Message and State and return a -%% single integer representing the priority attached to the message. -%% Messages with higher priorities are processed before requests with -%% lower priorities. The default priority is 0. -%% -%% 5) The callback module can optionally implement -%% handle_pre_hibernate/1 and handle_post_hibernate/1. These will be -%% called immediately prior to and post hibernation, respectively. If -%% handle_pre_hibernate returns {hibernate, NewState} then the process -%% will hibernate. If the module does not implement -%% handle_pre_hibernate/1 then the default action is to hibernate. -%% -%% 6) init can return a 4th arg, {backoff, InitialTimeout, -%% MinimumTimeout, DesiredHibernatePeriod} (all in -%% milliseconds). Then, on all callbacks which can return a timeout -%% (including init), timeout can be 'hibernate'. When this is the -%% case, the current timeout value will be used (initially, the -%% InitialTimeout supplied from init). After this timeout has -%% occurred, hibernation will occur as normal. Upon awaking, a new -%% current timeout value will be calculated. -%% -%% The purpose is that the gen_server2 takes care of adjusting the -%% current timeout value such that the process will increase the -%% timeout value repeatedly if it is unable to sleep for the -%% DesiredHibernatePeriod. If it is able to sleep for the -%% DesiredHibernatePeriod it will decrease the current timeout down to -%% the MinimumTimeout, so that the process is put to sleep sooner (and -%% hopefully stays asleep for longer). In short, should a process -%% using this receive a burst of messages, it should not hibernate -%% between those messages, but as the messages become less frequent, -%% the process will not only hibernate, it will do so sooner after -%% each message. -%% -%% When using this backoff mechanism, normal timeout values (i.e. not -%% 'hibernate') can still be used, and if they are used then the -%% handle_info(timeout, State) will be called as normal. In this case, -%% returning 'hibernate' from handle_info(timeout, State) will not -%% hibernate the process immediately, as it would if backoff wasn't -%% being used. Instead it'll wait for the current timeout as described -%% above. -%% -%% 7) The callback module can return from any of the handle_* -%% functions, a {become, Module, State} triple, or a {become, Module, -%% State, Timeout} quadruple. This allows the gen_server to -%% dynamically change the callback module. The State is the new state -%% which will be passed into any of the callback functions in the new -%% module. Note there is no form also encompassing a reply, thus if -%% you wish to reply in handle_call/3 and change the callback module, -%% you need to use gen_server2:reply/2 to issue the reply manually. - -%% All modifications are (C) 2009-2011 VMware, Inc. - -%% ``The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved via the world wide web at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. -%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings -%% AB. All Rights Reserved.'' -%% -%% $Id$ -%% --module(gen_server2). - -%%% --------------------------------------------------- -%%% -%%% The idea behind THIS server is that the user module -%%% provides (different) functions to handle different -%%% kind of inputs. -%%% If the Parent process terminates the Module:terminate/2 -%%% function is called. -%%% -%%% The user module should export: -%%% -%%% init(Args) -%%% ==> {ok, State} -%%% {ok, State, Timeout} -%%% {ok, State, Timeout, Backoff} -%%% ignore -%%% {stop, Reason} -%%% -%%% handle_call(Msg, {From, Tag}, State) -%%% -%%% ==> {reply, Reply, State} -%%% {reply, Reply, State, Timeout} -%%% {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, Reply, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_cast(Msg, State) -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_info(Info, State) Info is e.g. {'EXIT', P, R}, {nodedown, N}, ... -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% terminate(Reason, State) Let the user module clean up -%%% always called when server terminates -%%% -%%% ==> ok -%%% -%%% handle_pre_hibernate(State) -%%% -%%% ==> {hibernate, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% handle_post_hibernate(State) -%%% -%%% ==> {noreply, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% The work flow (of the server) can be described as follows: -%%% -%%% User module Generic -%%% ----------- ------- -%%% start -----> start -%%% init <----- . -%%% -%%% loop -%%% handle_call <----- . -%%% -----> reply -%%% -%%% handle_cast <----- . -%%% -%%% handle_info <----- . -%%% -%%% terminate <----- . -%%% -%%% -----> reply -%%% -%%% -%%% --------------------------------------------------- - -%% API --export([start/3, start/4, - start_link/3, start_link/4, - call/2, call/3, - cast/2, reply/2, - abcast/2, abcast/3, - multi_call/2, multi_call/3, multi_call/4, - enter_loop/3, enter_loop/4, enter_loop/5, enter_loop/6, wake_hib/1]). - --export([behaviour_info/1]). - -%% System exports --export([system_continue/3, - system_terminate/4, - system_code_change/4, - format_status/2]). - -%% Internal exports --export([init_it/6]). - --import(error_logger, [format/2]). - -%% State record --record(gs2_state, {parent, name, state, mod, time, - timeout_state, queue, debug, prioritise_call, - prioritise_cast, prioritise_info}). - -%%%========================================================================= -%%% Specs. These exist only to shut up dialyzer's warnings -%%%========================================================================= - --ifdef(use_specs). - --type(gs2_state() :: #gs2_state{}). - --spec(handle_common_termination/3 :: - (any(), atom(), gs2_state()) -> no_return()). --spec(hibernate/1 :: (gs2_state()) -> no_return()). --spec(pre_hibernate/1 :: (gs2_state()) -> no_return()). --spec(system_terminate/4 :: (_, _, _, gs2_state()) -> no_return()). - --endif. - -%%%========================================================================= -%%% API -%%%========================================================================= - -behaviour_info(callbacks) -> - [{init,1},{handle_call,3},{handle_cast,2},{handle_info,2}, - {terminate,2},{code_change,3}]; -behaviour_info(_Other) -> - undefined. - -%%% ----------------------------------------------------------------- -%%% Starts a generic server. -%%% start(Mod, Args, Options) -%%% start(Name, Mod, Args, Options) -%%% start_link(Mod, Args, Options) -%%% start_link(Name, Mod, Args, Options) where: -%%% Name ::= {local, atom()} | {global, atom()} -%%% Mod ::= atom(), callback module implementing the 'real' server -%%% Args ::= term(), init arguments (to Mod:init/1) -%%% Options ::= [{timeout, Timeout} | {debug, [Flag]}] -%%% Flag ::= trace | log | {logfile, File} | statistics | debug -%%% (debug == log && statistics) -%%% Returns: {ok, Pid} | -%%% {error, {already_started, Pid}} | -%%% {error, Reason} -%%% ----------------------------------------------------------------- -start(Mod, Args, Options) -> - gen:start(?MODULE, nolink, Mod, Args, Options). - -start(Name, Mod, Args, Options) -> - gen:start(?MODULE, nolink, Name, Mod, Args, Options). - -start_link(Mod, Args, Options) -> - gen:start(?MODULE, link, Mod, Args, Options). - -start_link(Name, Mod, Args, Options) -> - gen:start(?MODULE, link, Name, Mod, Args, Options). - - -%% ----------------------------------------------------------------- -%% Make a call to a generic server. -%% If the server is located at another node, that node will -%% be monitored. -%% If the client is trapping exits and is linked server termination -%% is handled here (? Shall we do that here (or rely on timeouts) ?). -%% ----------------------------------------------------------------- -call(Name, Request) -> - case catch gen:call(Name, '$gen_call', Request) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request]}}) - end. - -call(Name, Request, Timeout) -> - case catch gen:call(Name, '$gen_call', Request, Timeout) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request, Timeout]}}) - end. - -%% ----------------------------------------------------------------- -%% Make a cast to a generic server. -%% ----------------------------------------------------------------- -cast({global,Name}, Request) -> - catch global:send(Name, cast_msg(Request)), - ok; -cast({Name,Node}=Dest, Request) when is_atom(Name), is_atom(Node) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_atom(Dest) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_pid(Dest) -> - do_cast(Dest, Request). - -do_cast(Dest, Request) -> - do_send(Dest, cast_msg(Request)), - ok. - -cast_msg(Request) -> {'$gen_cast',Request}. - -%% ----------------------------------------------------------------- -%% Send a reply to the client. -%% ----------------------------------------------------------------- -reply({To, Tag}, Reply) -> - catch To ! {Tag, Reply}. - -%% ----------------------------------------------------------------- -%% Asyncronous broadcast, returns nothing, it's just send'n pray -%% ----------------------------------------------------------------- -abcast(Name, Request) when is_atom(Name) -> - do_abcast([node() | nodes()], Name, cast_msg(Request)). - -abcast(Nodes, Name, Request) when is_list(Nodes), is_atom(Name) -> - do_abcast(Nodes, Name, cast_msg(Request)). - -do_abcast([Node|Nodes], Name, Msg) when is_atom(Node) -> - do_send({Name,Node},Msg), - do_abcast(Nodes, Name, Msg); -do_abcast([], _,_) -> abcast. - -%%% ----------------------------------------------------------------- -%%% Make a call to servers at several nodes. -%%% Returns: {[Replies],[BadNodes]} -%%% A Timeout can be given -%%% -%%% A middleman process is used in case late answers arrives after -%%% the timeout. If they would be allowed to glog the callers message -%%% queue, it would probably become confused. Late answers will -%%% now arrive to the terminated middleman and so be discarded. -%%% ----------------------------------------------------------------- -multi_call(Name, Req) - when is_atom(Name) -> - do_multi_call([node() | nodes()], Name, Req, infinity). - -multi_call(Nodes, Name, Req) - when is_list(Nodes), is_atom(Name) -> - do_multi_call(Nodes, Name, Req, infinity). - -multi_call(Nodes, Name, Req, infinity) -> - do_multi_call(Nodes, Name, Req, infinity); -multi_call(Nodes, Name, Req, Timeout) - when is_list(Nodes), is_atom(Name), is_integer(Timeout), Timeout >= 0 -> - do_multi_call(Nodes, Name, Req, Timeout). - - -%%----------------------------------------------------------------- -%% enter_loop(Mod, Options, State, , , ) ->_ -%% -%% Description: Makes an existing process into a gen_server. -%% The calling process will enter the gen_server receive -%% loop and become a gen_server process. -%% The process *must* have been started using one of the -%% start functions in proc_lib, see proc_lib(3). -%% The user is responsible for any initialization of the -%% process, including registering a name for it. -%%----------------------------------------------------------------- -enter_loop(Mod, Options, State) -> - enter_loop(Mod, Options, State, self(), infinity, undefined). - -enter_loop(Mod, Options, State, Backoff = {backoff, _, _ , _}) -> - enter_loop(Mod, Options, State, self(), infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName = {_, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, undefined); - -enter_loop(Mod, Options, State, Timeout) -> - enter_loop(Mod, Options, State, self(), Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Backoff = {backoff, _, _, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName, Timeout) -> - enter_loop(Mod, Options, State, ServerName, Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Timeout, Backoff) -> - Name = get_proc_name(ServerName), - Parent = get_parent(), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - Backoff1 = extend_backoff(Backoff), - loop(find_prioritisers( - #gs2_state { parent = Parent, name = Name, state = State, - mod = Mod, time = Timeout, timeout_state = Backoff1, - queue = Queue, debug = Debug })). - -%%%======================================================================== -%%% Gen-callback functions -%%%======================================================================== - -%%% --------------------------------------------------- -%%% Initiate the new process. -%%% Register the name using the Rfunc function -%%% Calls the Mod:init/Args function. -%%% Finally an acknowledge is sent to Parent and the main -%%% loop is entered. -%%% --------------------------------------------------- -init_it(Starter, self, Name, Mod, Args, Options) -> - init_it(Starter, self(), Name, Mod, Args, Options); -init_it(Starter, Parent, Name0, Mod, Args, Options) -> - Name = name(Name0), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - GS2State = find_prioritisers( - #gs2_state { parent = Parent, - name = Name, - mod = Mod, - queue = Queue, - debug = Debug }), - case catch Mod:init(Args) of - {ok, State} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = infinity, - timeout_state = undefined }); - {ok, State, Timeout} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = undefined }); - {ok, State, Timeout, Backoff = {backoff, _, _, _}} -> - Backoff1 = extend_backoff(Backoff), - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = Backoff1 }); - {stop, Reason} -> - %% For consistency, we must make sure that the - %% registered name (if any) is unregistered before - %% the parent process is notified about the failure. - %% (Otherwise, the parent process could get - %% an 'already_started' error if it immediately - %% tried starting the process again.) - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - ignore -> - unregister_name(Name0), - proc_lib:init_ack(Starter, ignore), - exit(normal); - {'EXIT', Reason} -> - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - Else -> - Error = {bad_return_value, Else}, - proc_lib:init_ack(Starter, {error, Error}), - exit(Error) - end. - -name({local,Name}) -> Name; -name({global,Name}) -> Name; -%% name(Pid) when is_pid(Pid) -> Pid; -%% when R12 goes away, drop the line beneath and uncomment the line above -name(Name) -> Name. - -unregister_name({local,Name}) -> - _ = (catch unregister(Name)); -unregister_name({global,Name}) -> - _ = global:unregister_name(Name); -unregister_name(Pid) when is_pid(Pid) -> - Pid; -% Under R12 let's just ignore it, as we have a single term as Name. -% On R13 it will never get here, as we get tuple with 'local/global' atom. -unregister_name(_Name) -> ok. - -extend_backoff(undefined) -> - undefined; -extend_backoff({backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod}) -> - {backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod, now()}. - -%%%======================================================================== -%%% Internal functions -%%%======================================================================== -%%% --------------------------------------------------- -%%% The MAIN loop. -%%% --------------------------------------------------- -loop(GS2State = #gs2_state { time = hibernate, - timeout_state = undefined }) -> - pre_hibernate(GS2State); -loop(GS2State) -> - process_next_msg(drain(GS2State)). - -drain(GS2State) -> - receive - Input -> drain(in(Input, GS2State)) - after 0 -> GS2State - end. - -process_next_msg(GS2State = #gs2_state { time = Time, - timeout_state = TimeoutState, - queue = Queue }) -> - case priority_queue:out(Queue) of - {{value, Msg}, Queue1} -> - process_msg(Msg, GS2State #gs2_state { queue = Queue1 }); - {empty, Queue1} -> - {Time1, HibOnTimeout} - = case {Time, TimeoutState} of - {hibernate, {backoff, Current, _Min, _Desired, _RSt}} -> - {Current, true}; - {hibernate, _} -> - %% wake_hib/7 will set Time to hibernate. If - %% we were woken and didn't receive a msg - %% then we will get here and need a sensible - %% value for Time1, otherwise we crash. - %% R13B1 always waits infinitely when waking - %% from hibernation, so that's what we do - %% here too. - {infinity, false}; - _ -> {Time, false} - end, - receive - Input -> - %% Time could be 'hibernate' here, so *don't* call loop - process_next_msg( - drain(in(Input, GS2State #gs2_state { queue = Queue1 }))) - after Time1 -> - case HibOnTimeout of - true -> - pre_hibernate( - GS2State #gs2_state { queue = Queue1 }); - false -> - process_msg(timeout, - GS2State #gs2_state { queue = Queue1 }) - end - end - end. - -wake_hib(GS2State = #gs2_state { timeout_state = TS }) -> - TimeoutState1 = case TS of - undefined -> - undefined; - {SleptAt, TimeoutState} -> - adjust_timeout_state(SleptAt, now(), TimeoutState) - end, - post_hibernate( - drain(GS2State #gs2_state { timeout_state = TimeoutState1 })). - -hibernate(GS2State = #gs2_state { timeout_state = TimeoutState }) -> - TS = case TimeoutState of - undefined -> undefined; - {backoff, _, _, _, _} -> {now(), TimeoutState} - end, - proc_lib:hibernate(?MODULE, wake_hib, - [GS2State #gs2_state { timeout_state = TS }]). - -pre_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_pre_hibernate, 1) of - true -> - case catch Mod:handle_pre_hibernate(State) of - {hibernate, NState} -> - hibernate(GS2State #gs2_state { state = NState } ); - Reply -> - handle_common_termination(Reply, pre_hibernate, GS2State) - end; - false -> - hibernate(GS2State) - end. - -post_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_post_hibernate, 1) of - true -> - case catch Mod:handle_post_hibernate(State) of - {noreply, NState} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = infinity }); - {noreply, NState, Time} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = Time }); - Reply -> - handle_common_termination(Reply, post_hibernate, GS2State) - end; - false -> - %% use hibernate here, not infinity. This matches - %% R13B. The key is that we should be able to get through - %% to process_msg calling sys:handle_system_msg with Time - %% still set to hibernate, iff that msg is the very msg - %% that woke us up (or the first msg we receive after - %% waking up). - process_next_msg(GS2State #gs2_state { time = hibernate }) - end. - -adjust_timeout_state(SleptAt, AwokeAt, {backoff, CurrentTO, MinimumTO, - DesiredHibPeriod, RandomState}) -> - NapLengthMicros = timer:now_diff(AwokeAt, SleptAt), - CurrentMicros = CurrentTO * 1000, - MinimumMicros = MinimumTO * 1000, - DesiredHibMicros = DesiredHibPeriod * 1000, - GapBetweenMessagesMicros = NapLengthMicros + CurrentMicros, - Base = - %% If enough time has passed between the last two messages then we - %% should consider sleeping sooner. Otherwise stay awake longer. - case GapBetweenMessagesMicros > (MinimumMicros + DesiredHibMicros) of - true -> lists:max([MinimumTO, CurrentTO div 2]); - false -> CurrentTO - end, - {Extra, RandomState1} = random:uniform_s(Base, RandomState), - CurrentTO1 = Base + Extra, - {backoff, CurrentTO1, MinimumTO, DesiredHibPeriod, RandomState1}. - -in({'$gen_cast', Msg}, GS2State = #gs2_state { prioritise_cast = PC, - queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - {'$gen_cast', Msg}, - PC(Msg, GS2State), Queue) }; -in({'$gen_call', From, Msg}, GS2State = #gs2_state { prioritise_call = PC, - queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - {'$gen_call', From, Msg}, - PC(Msg, From, GS2State), Queue) }; -in(Input, GS2State = #gs2_state { prioritise_info = PI, queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - Input, PI(Input, GS2State), Queue) }. - -process_msg(Msg, - GS2State = #gs2_state { parent = Parent, - name = Name, - debug = Debug }) -> - case Msg of - {system, From, Req} -> - sys:handle_system_msg( - Req, From, Parent, ?MODULE, Debug, - GS2State); - %% gen_server puts Hib on the end as the 7th arg, but that - %% version of the function seems not to be documented so - %% leaving out for now. - {'EXIT', Parent, Reason} -> - terminate(Reason, Msg, GS2State); - _Msg when Debug =:= [] -> - handle_msg(Msg, GS2State); - _Msg -> - Debug1 = sys:handle_debug(Debug, fun print_event/3, - Name, {in, Msg}), - handle_msg(Msg, GS2State #gs2_state { debug = Debug1 }) - end. - -%%% --------------------------------------------------- -%%% Send/recive functions -%%% --------------------------------------------------- -do_send(Dest, Msg) -> - catch erlang:send(Dest, Msg). - -do_multi_call(Nodes, Name, Req, infinity) -> - Tag = make_ref(), - Monitors = send_nodes(Nodes, Name, Tag, Req), - rec_nodes(Tag, Monitors, Name, undefined); -do_multi_call(Nodes, Name, Req, Timeout) -> - Tag = make_ref(), - Caller = self(), - Receiver = - spawn( - fun () -> - %% Middleman process. Should be unsensitive to regular - %% exit signals. The sychronization is needed in case - %% the receiver would exit before the caller started - %% the monitor. - process_flag(trap_exit, true), - Mref = erlang:monitor(process, Caller), - receive - {Caller,Tag} -> - Monitors = send_nodes(Nodes, Name, Tag, Req), - TimerId = erlang:start_timer(Timeout, self(), ok), - Result = rec_nodes(Tag, Monitors, Name, TimerId), - exit({self(),Tag,Result}); - {'DOWN',Mref,_,_,_} -> - %% Caller died before sending us the go-ahead. - %% Give up silently. - exit(normal) - end - end), - Mref = erlang:monitor(process, Receiver), - Receiver ! {self(),Tag}, - receive - {'DOWN',Mref,_,_,{Receiver,Tag,Result}} -> - Result; - {'DOWN',Mref,_,_,Reason} -> - %% The middleman code failed. Or someone did - %% exit(_, kill) on the middleman process => Reason==killed - exit(Reason) - end. - -send_nodes(Nodes, Name, Tag, Req) -> - send_nodes(Nodes, Name, Tag, Req, []). - -send_nodes([Node|Tail], Name, Tag, Req, Monitors) - when is_atom(Node) -> - Monitor = start_monitor(Node, Name), - %% Handle non-existing names in rec_nodes. - catch {Name, Node} ! {'$gen_call', {self(), {Tag, Node}}, Req}, - send_nodes(Tail, Name, Tag, Req, [Monitor | Monitors]); -send_nodes([_Node|Tail], Name, Tag, Req, Monitors) -> - %% Skip non-atom Node - send_nodes(Tail, Name, Tag, Req, Monitors); -send_nodes([], _Name, _Tag, _Req, Monitors) -> - Monitors. - -%% Against old nodes: -%% If no reply has been delivered within 2 secs. (per node) check that -%% the server really exists and wait for ever for the answer. -%% -%% Against contemporary nodes: -%% Wait for reply, server 'DOWN', or timeout from TimerId. - -rec_nodes(Tag, Nodes, Name, TimerId) -> - rec_nodes(Tag, Nodes, Name, [], [], 2000, TimerId). - -rec_nodes(Tag, [{N,R}|Tail], Name, Badnodes, Replies, Time, TimerId ) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, Time, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], Time, TimerId); - {timeout, TimerId, _} -> - unmonitor(R), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes(Tag, [N|Tail], Name, Badnodes, Replies, Time, TimerId) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, 2000, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], 2000, TimerId); - {timeout, TimerId, _} -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N | Badnodes], Replies) - after Time -> - case rpc:call(N, erlang, whereis, [Name]) of - Pid when is_pid(Pid) -> % It exists try again. - rec_nodes(Tag, [N|Tail], Name, Badnodes, - Replies, infinity, TimerId); - _ -> % badnode - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], - Replies, 2000, TimerId) - end - end; -rec_nodes(_, [], _, Badnodes, Replies, _, TimerId) -> - case catch erlang:cancel_timer(TimerId) of - false -> % It has already sent it's message - receive - {timeout, TimerId, _} -> ok - after 0 -> - ok - end; - _ -> % Timer was cancelled, or TimerId was 'undefined' - ok - end, - {Replies, Badnodes}. - -%% Collect all replies that already have arrived -rec_nodes_rest(Tag, [{N,R}|Tail], Name, Badnodes, Replies) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(Tag, [N|Tail], Name, Badnodes, Replies) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(_Tag, [], _Name, Badnodes, Replies) -> - {Replies, Badnodes}. - - -%%% --------------------------------------------------- -%%% Monitor functions -%%% --------------------------------------------------- - -start_monitor(Node, Name) when is_atom(Node), is_atom(Name) -> - if node() =:= nonode@nohost, Node =/= nonode@nohost -> - Ref = make_ref(), - self() ! {'DOWN', Ref, process, {Name, Node}, noconnection}, - {Node, Ref}; - true -> - case catch erlang:monitor(process, {Name, Node}) of - {'EXIT', _} -> - %% Remote node is R6 - monitor_node(Node, true), - Node; - Ref when is_reference(Ref) -> - {Node, Ref} - end - end. - -%% Cancels a monitor started with Ref=erlang:monitor(_, _). -unmonitor(Ref) when is_reference(Ref) -> - erlang:demonitor(Ref), - receive - {'DOWN', Ref, _, _, _} -> - true - after 0 -> - true - end. - -%%% --------------------------------------------------- -%%% Message handling functions -%%% --------------------------------------------------- - -dispatch({'$gen_cast', Msg}, Mod, State) -> - Mod:handle_cast(Msg, State); -dispatch(Info, Mod, State) -> - Mod:handle_info(Info, State). - -common_reply(_Name, From, Reply, _NState, [] = _Debug) -> - reply(From, Reply), - []; -common_reply(Name, From, Reply, NState, Debug) -> - reply(Name, From, Reply, NState, Debug). - -common_debug([] = _Debug, _Func, _Info, _Event) -> - []; -common_debug(Debug, Func, Info, Event) -> - sys:handle_debug(Debug, Func, Info, Event). - -handle_msg({'$gen_call', From, Msg}, GS2State = #gs2_state { mod = Mod, - state = State, - name = Name, - debug = Debug }) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {reply, Reply, NState, Time1} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1}); - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = infinity, - debug = Debug1}); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = Time1, - debug = Debug1}); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Msg, - GS2State #gs2_state { state = NState })), - reply(Name, From, Reply, NState, Debug), - exit(R); - Other -> - handle_common_reply(Other, Msg, GS2State) - end; -handle_msg(Msg, GS2State = #gs2_state { mod = Mod, state = State }) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, Msg, GS2State). - -handle_common_reply(Reply, Msg, GS2State = #gs2_state { name = Name, - debug = Debug}) -> - case Reply of - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1 }); - {become, Mod, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {become, Mod, NState}), - loop(find_prioritisers( - GS2State #gs2_state { mod = Mod, - state = NState, - time = infinity, - debug = Debug1 })); - {become, Mod, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {become, Mod, NState}), - loop(find_prioritisers( - GS2State #gs2_state { mod = Mod, - state = NState, - time = Time1, - debug = Debug1 })); - _ -> - handle_common_termination(Reply, Msg, GS2State) - end. - -handle_common_termination(Reply, Msg, GS2State) -> - case Reply of - {stop, Reason, NState} -> - terminate(Reason, Msg, GS2State #gs2_state { state = NState }); - {'EXIT', What} -> - terminate(What, Msg, GS2State); - _ -> - terminate({bad_return_value, Reply}, Msg, GS2State) - end. - -reply(Name, {To, Tag}, Reply, State, Debug) -> - reply({To, Tag}, Reply), - sys:handle_debug( - Debug, fun print_event/3, Name, {out, Reply, To, State}). - - -%%----------------------------------------------------------------- -%% Callback functions for system messages handling. -%%----------------------------------------------------------------- -system_continue(Parent, Debug, GS2State) -> - loop(GS2State #gs2_state { parent = Parent, debug = Debug }). - -system_terminate(Reason, _Parent, Debug, GS2State) -> - terminate(Reason, [], GS2State #gs2_state { debug = Debug }). - -system_code_change(GS2State = #gs2_state { mod = Mod, - state = State }, - _Module, OldVsn, Extra) -> - case catch Mod:code_change(OldVsn, State, Extra) of - {ok, NewState} -> - NewGS2State = find_prioritisers( - GS2State #gs2_state { state = NewState }), - {ok, [NewGS2State]}; - Else -> - Else - end. - -%%----------------------------------------------------------------- -%% Format debug messages. Print them as the call-back module sees -%% them, not as the real erlang messages. Use trace for that. -%%----------------------------------------------------------------- -print_event(Dev, {in, Msg}, Name) -> - case Msg of - {'$gen_call', {From, _Tag}, Call} -> - io:format(Dev, "*DBG* ~p got call ~p from ~w~n", - [Name, Call, From]); - {'$gen_cast', Cast} -> - io:format(Dev, "*DBG* ~p got cast ~p~n", - [Name, Cast]); - _ -> - io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg]) - end; -print_event(Dev, {out, Msg, To, State}, Name) -> - io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n", - [Name, Msg, To, State]); -print_event(Dev, {noreply, State}, Name) -> - io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]); -print_event(Dev, Event, Name) -> - io:format(Dev, "*DBG* ~p dbg ~p~n", [Name, Event]). - - -%%% --------------------------------------------------- -%%% Terminate the server. -%%% --------------------------------------------------- - -terminate(Reason, Msg, #gs2_state { name = Name, - mod = Mod, - state = State, - debug = Debug }) -> - case catch Mod:terminate(Reason, State) of - {'EXIT', R} -> - error_info(R, Reason, Name, Msg, State, Debug), - exit(R); - _ -> - case Reason of - normal -> - exit(normal); - shutdown -> - exit(shutdown); - {shutdown,_}=Shutdown -> - exit(Shutdown); - _ -> - error_info(Reason, undefined, Name, Msg, State, Debug), - exit(Reason) - end - end. - -error_info(_Reason, _RootCause, application_controller, _Msg, _State, _Debug) -> - %% OTP-5811 Don't send an error report if it's the system process - %% application_controller which is terminating - let init take care - %% of it instead - ok; -error_info(Reason, RootCause, Name, Msg, State, Debug) -> - Reason1 = error_reason(Reason), - Fmt = - "** Generic server ~p terminating~n" - "** Last message in was ~p~n" - "** When Server state == ~p~n" - "** Reason for termination == ~n** ~p~n", - case RootCause of - undefined -> format(Fmt, [Name, Msg, State, Reason1]); - _ -> format(Fmt ++ "** In 'terminate' callback " - "with reason ==~n** ~p~n", - [Name, Msg, State, Reason1, - error_reason(RootCause)]) - end, - sys:print_log(Debug), - ok. - -error_reason({undef,[{M,F,A}|MFAs]} = Reason) -> - case code:is_loaded(M) of - false -> {'module could not be loaded',[{M,F,A}|MFAs]}; - _ -> case erlang:function_exported(M, F, length(A)) of - true -> Reason; - false -> {'function not exported',[{M,F,A}|MFAs]} - end - end; -error_reason(Reason) -> - Reason. - -%%% --------------------------------------------------- -%%% Misc. functions. -%%% --------------------------------------------------- - -opt(Op, [{Op, Value}|_]) -> - {ok, Value}; -opt(Op, [_|Options]) -> - opt(Op, Options); -opt(_, []) -> - false. - -debug_options(Name, Opts) -> - case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) - end. - -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). - -dbg_opts(Name, Opts) -> - case catch sys:debug_options(Opts) of - {'EXIT',_} -> - format("~p: ignoring erroneous debug options - ~p~n", - [Name, Opts]), - []; - Dbg -> - Dbg - end. - -get_proc_name(Pid) when is_pid(Pid) -> - Pid; -get_proc_name({local, Name}) -> - case process_info(self(), registered_name) of - {registered_name, Name} -> - Name; - {registered_name, _Name} -> - exit(process_not_registered); - [] -> - exit(process_not_registered) - end; -get_proc_name({global, Name}) -> - case global:safe_whereis_name(Name) of - undefined -> - exit(process_not_registered_globally); - Pid when Pid =:= self() -> - Name; - _Pid -> - exit(process_not_registered_globally) - end. - -get_parent() -> - case get('$ancestors') of - [Parent | _] when is_pid(Parent)-> - Parent; - [Parent | _] when is_atom(Parent)-> - name_to_pid(Parent); - _ -> - exit(process_was_not_started_by_proc_lib) - end. - -name_to_pid(Name) -> - case whereis(Name) of - undefined -> - case global:safe_whereis_name(Name) of - undefined -> - exit(could_not_find_registerd_name); - Pid -> - Pid - end; - Pid -> - Pid - end. - -find_prioritisers(GS2State = #gs2_state { mod = Mod }) -> - PrioriCall = function_exported_or_default( - Mod, 'prioritise_call', 3, - fun (_Msg, _From, _State) -> 0 end), - PrioriCast = function_exported_or_default(Mod, 'prioritise_cast', 2, - fun (_Msg, _State) -> 0 end), - PrioriInfo = function_exported_or_default(Mod, 'prioritise_info', 2, - fun (_Msg, _State) -> 0 end), - GS2State #gs2_state { prioritise_call = PrioriCall, - prioritise_cast = PrioriCast, - prioritise_info = PrioriInfo }. - -function_exported_or_default(Mod, Fun, Arity, Default) -> - case erlang:function_exported(Mod, Fun, Arity) of - true -> case Arity of - 2 -> fun (Msg, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end; - 3 -> fun (Msg, From, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, From, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end - end; - false -> Default - end. - -%%----------------------------------------------------------------- -%% Status information -%%----------------------------------------------------------------- -format_status(Opt, StatusData) -> - [PDict, SysState, Parent, Debug, - #gs2_state{name = Name, state = State, mod = Mod, queue = Queue}] = - StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), - Log = sys:get_debug(log, Debug, []), - Specfic = - case erlang:function_exported(Mod, format_status, 2) of - true -> case catch Mod:format_status(Opt, [PDict, State]) of - {'EXIT', _} -> [{data, [{"State", State}]}]; - Else -> Else - end; - _ -> [{data, [{"State", State}]}] - end, - [{header, Header}, - {data, [{"Status", SysState}, - {"Parent", Parent}, - {"Logged events", Log}, - {"Queued messages", priority_queue:to_list(Queue)}]} | - Specfic]. diff --git a/src/gm.erl b/src/gm.erl deleted file mode 100644 index 70633a08..00000000 --- a/src/gm.erl +++ /dev/null @@ -1,1321 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm). - -%% Guaranteed Multicast -%% ==================== -%% -%% This module provides the ability to create named groups of -%% processes to which members can be dynamically added and removed, -%% and for messages to be broadcast within the group that are -%% guaranteed to reach all members of the group during the lifetime of -%% the message. The lifetime of a message is defined as being, at a -%% minimum, the time from which the message is first sent to any -%% member of the group, up until the time at which it is known by the -%% member who published the message that the message has reached all -%% group members. -%% -%% The guarantee given is that provided a message, once sent, makes it -%% to members who do not all leave the group, the message will -%% continue to propagate to all group members. -%% -%% Another way of stating the guarantee is that if member P publishes -%% messages m and m', then for all members P', if P' is a member of -%% the group prior to the publication of m, and P' receives m', then -%% P' will receive m. -%% -%% Note that only local-ordering is enforced: i.e. if member P sends -%% message m and then message m', then for-all members P', if P' -%% receives m and m', then they will receive m' after m. Causality -%% ordering is _not_ enforced. I.e. if member P receives message m -%% and as a result publishes message m', there is no guarantee that -%% other members P' will receive m before m'. -%% -%% -%% API Use -%% ------- -%% -%% Mnesia must be started. Use the idempotent create_tables/0 function -%% to create the tables required. -%% -%% start_link/3 -%% Provide the group name, the callback module name, and any arguments -%% you wish to be passed into the callback module's functions. The -%% joined/2 function will be called when we have joined the group, -%% with the arguments passed to start_link and a list of the current -%% members of the group. See the comments in behaviour_info/1 below -%% for further details of the callback functions. -%% -%% leave/1 -%% Provide the Pid. Removes the Pid from the group. The callback -%% terminate/2 function will be called. -%% -%% broadcast/2 -%% Provide the Pid and a Message. The message will be sent to all -%% members of the group as per the guarantees given above. This is a -%% cast and the function call will return immediately. There is no -%% guarantee that the message will reach any member of the group. -%% -%% confirmed_broadcast/2 -%% Provide the Pid and a Message. As per broadcast/2 except that this -%% is a call, not a cast, and only returns 'ok' once the Message has -%% reached every member of the group. Do not call -%% confirmed_broadcast/2 directly from the callback module otherwise -%% you will deadlock the entire group. -%% -%% group_members/1 -%% Provide the Pid. Returns a list of the current group members. -%% -%% -%% Implementation Overview -%% ----------------------- -%% -%% One possible means of implementation would be a fan-out from the -%% sender to every member of the group. This would require that the -%% group is fully connected, and, in the event that the original -%% sender of the message disappears from the group before the message -%% has made it to every member of the group, raises questions as to -%% who is responsible for sending on the message to new group members. -%% In particular, the issue is with [ Pid ! Msg || Pid <- Members ] - -%% if the sender dies part way through, who is responsible for -%% ensuring that the remaining Members receive the Msg? In the event -%% that within the group, messages sent are broadcast from a subset of -%% the members, the fan-out arrangement has the potential to -%% substantially impact the CPU and network workload of such members, -%% as such members would have to accommodate the cost of sending each -%% message to every group member. -%% -%% Instead, if the members of the group are arranged in a chain, then -%% it becomes easier to reason about who within the group has received -%% each message and who has not. It eases issues of responsibility: in -%% the event of a group member disappearing, the nearest upstream -%% member of the chain is responsible for ensuring that messages -%% continue to propagate down the chain. It also results in equal -%% distribution of sending and receiving workload, even if all -%% messages are being sent from just a single group member. This -%% configuration has the further advantage that it is not necessary -%% for every group member to know of every other group member, and -%% even that a group member does not have to be accessible from all -%% other group members. -%% -%% Performance is kept high by permitting pipelining and all -%% communication between joined group members is asynchronous. In the -%% chain A -> B -> C -> D, if A sends a message to the group, it will -%% not directly contact C or D. However, it must know that D receives -%% the message (in addition to B and C) before it can consider the -%% message fully sent. A simplistic implementation would require that -%% D replies to C, C replies to B and B then replies to A. This would -%% result in a propagation delay of twice the length of the chain. It -%% would also require, in the event of the failure of C, that D knows -%% to directly contact B and issue the necessary replies. Instead, the -%% chain forms a ring: D sends the message on to A: D does not -%% distinguish A as the sender, merely as the next member (downstream) -%% within the chain (which has now become a ring). When A receives -%% from D messages that A sent, it knows that all members have -%% received the message. However, the message is not dead yet: if C -%% died as B was sending to C, then B would need to detect the death -%% of C and forward the message on to D instead: thus every node has -%% to remember every message published until it is told that it can -%% forget about the message. This is essential not just for dealing -%% with failure of members, but also for the addition of new members. -%% -%% Thus once A receives the message back again, it then sends to B an -%% acknowledgement for the message, indicating that B can now forget -%% about the message. B does so, and forwards the ack to C. C forgets -%% the message, and forwards the ack to D, which forgets the message -%% and finally forwards the ack back to A. At this point, A takes no -%% further action: the message and its acknowledgement have made it to -%% every member of the group. The message is now dead, and any new -%% member joining the group at this point will not receive the -%% message. -%% -%% We therefore have two roles: -%% -%% 1. The sender, who upon receiving their own messages back, must -%% then send out acknowledgements, and upon receiving their own -%% acknowledgements back perform no further action. -%% -%% 2. The other group members who upon receiving messages and -%% acknowledgements must update their own internal state accordingly -%% (the sending member must also do this in order to be able to -%% accommodate failures), and forwards messages on to their downstream -%% neighbours. -%% -%% -%% Implementation: It gets trickier -%% -------------------------------- -%% -%% Chain A -> B -> C -> D -%% -%% A publishes a message which B receives. A now dies. B and D will -%% detect the death of A, and will link up, thus the chain is now B -> -%% C -> D. B forwards A's message on to C, who forwards it to D, who -%% forwards it to B. Thus B is now responsible for A's messages - both -%% publications and acknowledgements that were in flight at the point -%% at which A died. Even worse is that this is transitive: after B -%% forwards A's message to C, B dies as well. Now C is not only -%% responsible for B's in-flight messages, but is also responsible for -%% A's in-flight messages. -%% -%% Lemma 1: A member can only determine which dead members they have -%% inherited responsibility for if there is a total ordering on the -%% conflicting additions and subtractions of members from the group. -%% -%% Consider the simultaneous death of B and addition of B' that -%% transitions a chain from A -> B -> C to A -> B' -> C. Either B' or -%% C is responsible for in-flight messages from B. It is easy to -%% ensure that at least one of them thinks they have inherited B, but -%% if we do not ensure that exactly one of them inherits B, then we -%% could have B' converting publishes to acks, which then will crash C -%% as C does not believe it has issued acks for those messages. -%% -%% More complex scenarios are easy to concoct: A -> B -> C -> D -> E -%% becoming A -> C' -> E. Who has inherited which of B, C and D? -%% -%% However, for non-conflicting membership changes, only a partial -%% ordering is required. For example, A -> B -> C becoming A -> A' -> -%% B. The addition of A', between A and B can have no conflicts with -%% the death of C: it is clear that A has inherited C's messages. -%% -%% For ease of implementation, we adopt the simple solution, of -%% imposing a total order on all membership changes. -%% -%% On the death of a member, it is ensured the dead member's -%% neighbours become aware of the death, and the upstream neighbour -%% now sends to its new downstream neighbour its state, including the -%% messages pending acknowledgement. The downstream neighbour can then -%% use this to calculate which publishes and acknowledgements it has -%% missed out on, due to the death of its old upstream. Thus the -%% downstream can catch up, and continues the propagation of messages -%% through the group. -%% -%% Lemma 2: When a member is joining, it must synchronously -%% communicate with its upstream member in order to receive its -%% starting state atomically with its addition to the group. -%% -%% New members must start with the same state as their nearest -%% upstream neighbour. This ensures that it is not surprised by -%% acknowledgements they are sent, and that should their downstream -%% neighbour die, they are able to send the correct state to their new -%% downstream neighbour to ensure it can catch up. Thus in the -%% transition A -> B -> C becomes A -> A' -> B -> C becomes A -> A' -> -%% C, A' must start with the state of A, so that it can send C the -%% correct state when B dies, allowing C to detect any missed -%% messages. -%% -%% If A' starts by adding itself to the group membership, A could then -%% die, without A' having received the necessary state from A. This -%% would leave A' responsible for in-flight messages from A, but -%% having the least knowledge of all, of those messages. Thus A' must -%% start by synchronously calling A, which then immediately sends A' -%% back its state. A then adds A' to the group. If A dies at this -%% point then A' will be able to see this (as A' will fail to appear -%% in the group membership), and thus A' will ignore the state it -%% receives from A, and will simply repeat the process, trying to now -%% join downstream from some other member. This ensures that should -%% the upstream die as soon as the new member has been joined, the new -%% member is guaranteed to receive the correct state, allowing it to -%% correctly process messages inherited due to the death of its -%% upstream neighbour. -%% -%% The canonical definition of the group membership is held by a -%% distributed database. Whilst this allows the total ordering of -%% changes to be achieved, it is nevertheless undesirable to have to -%% query this database for the current view, upon receiving each -%% message. Instead, we wish for members to be able to cache a view of -%% the group membership, which then requires a cache invalidation -%% mechanism. Each member maintains its own view of the group -%% membership. Thus when the group's membership changes, members may -%% need to become aware of such changes in order to be able to -%% accurately process messages they receive. Because of the -%% requirement of a total ordering of conflicting membership changes, -%% it is not possible to use the guaranteed broadcast mechanism to -%% communicate these changes: to achieve the necessary ordering, it -%% would be necessary for such messages to be published by exactly one -%% member, which can not be guaranteed given that such a member could -%% die. -%% -%% The total ordering we enforce on membership changes gives rise to a -%% view version number: every change to the membership creates a -%% different view, and the total ordering permits a simple -%% monotonically increasing view version number. -%% -%% Lemma 3: If a message is sent from a member that holds view version -%% N, it can be correctly processed by any member receiving the -%% message with a view version >= N. -%% -%% Initially, let us suppose that each view contains the ordering of -%% every member that was ever part of the group. Dead members are -%% marked as such. Thus we have a ring of members, some of which are -%% dead, and are thus inherited by the nearest alive downstream -%% member. -%% -%% In the chain A -> B -> C, all three members initially have view -%% version 1, which reflects reality. B publishes a message, which is -%% forward by C to A. B now dies, which A notices very quickly. Thus A -%% updates the view, creating version 2. It now forwards B's -%% publication, sending that message to its new downstream neighbour, -%% C. This happens before C is aware of the death of B. C must become -%% aware of the view change before it interprets the message its -%% received, otherwise it will fail to learn of the death of B, and -%% thus will not realise it has inherited B's messages (and will -%% likely crash). -%% -%% Thus very simply, we have that each subsequent view contains more -%% information than the preceding view. -%% -%% However, to avoid the views growing indefinitely, we need to be -%% able to delete members which have died _and_ for which no messages -%% are in-flight. This requires that upon inheriting a dead member, we -%% know the last publication sent by the dead member (this is easy: we -%% inherit a member because we are the nearest downstream member which -%% implies that we know at least as much than everyone else about the -%% publications of the dead member), and we know the earliest message -%% for which the acknowledgement is still in flight. -%% -%% In the chain A -> B -> C, when B dies, A will send to C its state -%% (as C is the new downstream from A), allowing C to calculate which -%% messages it has missed out on (described above). At this point, C -%% also inherits B's messages. If that state from A also includes the -%% last message published by B for which an acknowledgement has been -%% seen, then C knows exactly which further acknowledgements it must -%% receive (also including issuing acknowledgements for publications -%% still in-flight that it receives), after which it is known there -%% are no more messages in flight for B, thus all evidence that B was -%% ever part of the group can be safely removed from the canonical -%% group membership. -%% -%% Thus, for every message that a member sends, it includes with that -%% message its view version. When a member receives a message it will -%% update its view from the canonical copy, should its view be older -%% than the view version included in the message it has received. -%% -%% The state held by each member therefore includes the messages from -%% each publisher pending acknowledgement, the last publication seen -%% from that publisher, and the last acknowledgement from that -%% publisher. In the case of the member's own publications or -%% inherited members, this last acknowledgement seen state indicates -%% the last acknowledgement retired, rather than sent. -%% -%% -%% Proof sketch -%% ------------ -%% -%% We need to prove that with the provided operational semantics, we -%% can never reach a state that is not well formed from a well-formed -%% starting state. -%% -%% Operational semantics (small step): straight-forward message -%% sending, process monitoring, state updates. -%% -%% Well formed state: dead members inherited by exactly one non-dead -%% member; for every entry in anyone's pending-acks, either (the -%% publication of the message is in-flight downstream from the member -%% and upstream from the publisher) or (the acknowledgement of the -%% message is in-flight downstream from the publisher and upstream -%% from the member). -%% -%% Proof by induction on the applicable operational semantics. -%% -%% -%% Related work -%% ------------ -%% -%% The ring configuration and double traversal of messages around the -%% ring is similar (though developed independently) to the LCR -%% protocol by [Levy 2008]. However, LCR differs in several -%% ways. Firstly, by using vector clocks, it enforces a total order of -%% message delivery, which is unnecessary for our purposes. More -%% significantly, it is built on top of a "group communication system" -%% which performs the group management functions, taking -%% responsibility away from the protocol as to how to cope with safely -%% adding and removing members. When membership changes do occur, the -%% protocol stipulates that every member must perform communication -%% with every other member of the group, to ensure all outstanding -%% deliveries complete, before the entire group transitions to the new -%% view. This, in total, requires two sets of all-to-all synchronous -%% communications. -%% -%% This is not only rather inefficient, but also does not explain what -%% happens upon the failure of a member during this process. It does -%% though entirely avoid the need for inheritance of responsibility of -%% dead members that our protocol incorporates. -%% -%% In [Marandi et al 2010], a Paxos-based protocol is described. This -%% work explicitly focuses on the efficiency of communication. LCR -%% (and our protocol too) are more efficient, but at the cost of -%% higher latency. The Ring-Paxos protocol is itself built on top of -%% IP-multicast, which rules it out for many applications where -%% point-to-point communication is all that can be required. They also -%% have an excellent related work section which I really ought to -%% read... -%% -%% -%% [Levy 2008] The Complexity of Reliable Distributed Storage, 2008. -%% [Marandi et al 2010] Ring Paxos: A High-Throughput Atomic Broadcast -%% Protocol - - --behaviour(gen_server2). - --export([create_tables/0, start_link/3, leave/1, broadcast/2, - confirmed_broadcast/2, group_members/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3, prioritise_info/2]). - --export([behaviour_info/1]). - --export([table_definitions/0]). - --define(GROUP_TABLE, gm_group). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(SETS, ordsets). --define(DICT, orddict). - --record(state, - { self, - left, - right, - group_name, - module, - view, - pub_count, - members_state, - callback_args, - confirms - }). - --record(gm_group, { name, version, members }). - --record(view_member, { id, aliases, left, right }). - --record(member, { pending_ack, last_pub, last_ack }). - --define(TABLE, {?GROUP_TABLE, [{record_name, gm_group}, - {attributes, record_info(fields, gm_group)}]}). --define(TABLE_MATCH, {match, #gm_group { _ = '_' }}). - --define(TAG, '$gm'). - --ifdef(use_specs). - --export_type([group_name/0]). - --type(group_name() :: any()). - --spec(create_tables/0 :: () -> 'ok'). --spec(start_link/3 :: (group_name(), atom(), any()) -> - {'ok', pid()} | {'error', any()}). --spec(leave/1 :: (pid()) -> 'ok'). --spec(broadcast/2 :: (pid(), any()) -> 'ok'). --spec(confirmed_broadcast/2 :: (pid(), any()) -> 'ok'). --spec(group_members/1 :: (pid()) -> [pid()]). - --endif. - -behaviour_info(callbacks) -> - [ - %% The joined, members_changed and handle_msg callbacks can all - %% return any of the following terms: - %% - %% 'ok' - the callback function returns normally - %% - %% {'stop', Reason} - the callback indicates the member should - %% stop with reason Reason and should leave the group. - %% - %% {'become', Module, Args} - the callback indicates that the - %% callback module should be changed to Module and that the - %% callback functions should now be passed the arguments - %% Args. This allows the callback module to be dynamically - %% changed. - - %% Called when we've successfully joined the group. Supplied with - %% Args provided in start_link, plus current group members. - {joined, 2}, - - %% Supplied with Args provided in start_link, the list of new - %% members and the list of members previously known to us that - %% have since died. Note that if a member joins and dies very - %% quickly, it's possible that we will never see that member - %% appear in either births or deaths. However we are guaranteed - %% that (1) we will see a member joining either in the births - %% here, or in the members passed to joined/2 before receiving - %% any messages from it; and (2) we will not see members die that - %% we have not seen born (or supplied in the members to - %% joined/2). - {members_changed, 3}, - - %% Supplied with Args provided in start_link, the sender, and the - %% message. This does get called for messages injected by this - %% member, however, in such cases, there is no special - %% significance of this invocation: it does not indicate that the - %% message has made it to any other members, let alone all other - %% members. - {handle_msg, 3}, - - %% Called on gm member termination as per rules in gen_server, - %% with the Args provided in start_link plus the termination - %% Reason. - {terminate, 2} - ]; -behaviour_info(_Other) -> - undefined. - -create_tables() -> - create_tables([?TABLE]). - -create_tables([]) -> - ok; -create_tables([{Table, Attributes} | Tables]) -> - case mnesia:create_table(Table, Attributes) of - {atomic, ok} -> create_tables(Tables); - {aborted, {already_exists, gm_group}} -> create_tables(Tables); - Err -> Err - end. - -table_definitions() -> - {Name, Attributes} = ?TABLE, - [{Name, [?TABLE_MATCH | Attributes]}]. - -start_link(GroupName, Module, Args) -> - gen_server2:start_link(?MODULE, [GroupName, Module, Args], []). - -leave(Server) -> - gen_server2:cast(Server, leave). - -broadcast(Server, Msg) -> - gen_server2:cast(Server, {broadcast, Msg}). - -confirmed_broadcast(Server, Msg) -> - gen_server2:call(Server, {confirmed_broadcast, Msg}, infinity). - -group_members(Server) -> - gen_server2:call(Server, group_members, infinity). - - -init([GroupName, Module, Args]) -> - random:seed(now()), - gen_server2:cast(self(), join), - Self = self(), - {ok, #state { self = Self, - left = {Self, undefined}, - right = {Self, undefined}, - group_name = GroupName, - module = Module, - view = undefined, - pub_count = 0, - members_state = undefined, - callback_args = Args, - confirms = queue:new() }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - - -handle_call({confirmed_broadcast, _Msg}, _From, - State = #state { members_state = undefined }) -> - reply(not_joined, State); - -handle_call({confirmed_broadcast, Msg}, _From, - State = #state { self = Self, - right = {Self, undefined}, - module = Module, - callback_args = Args }) -> - handle_callback_result({Module:handle_msg(Args, Self, Msg), ok, State}); - -handle_call({confirmed_broadcast, Msg}, From, State) -> - internal_broadcast(Msg, From, State); - -handle_call(group_members, _From, - State = #state { members_state = undefined }) -> - reply(not_joined, State); - -handle_call(group_members, _From, State = #state { view = View }) -> - reply(alive_view_members(View), State); - -handle_call({add_on_right, _NewMember}, _From, - State = #state { members_state = undefined }) -> - reply(not_ready, State); - -handle_call({add_on_right, NewMember}, _From, - State = #state { self = Self, - group_name = GroupName, - view = View, - members_state = MembersState, - module = Module, - callback_args = Args }) -> - Group = record_new_member_in_group( - GroupName, Self, NewMember, - fun (Group1) -> - View1 = group_to_view(Group1), - ok = send_right(NewMember, View1, - {catchup, Self, prepare_members_state( - MembersState)}) - end), - View2 = group_to_view(Group), - State1 = check_neighbours(State #state { view = View2 }), - Result = callback_view_changed(Args, Module, View, View2), - handle_callback_result({Result, {ok, Group}, State1}). - - -handle_cast({?TAG, ReqVer, Msg}, - State = #state { view = View, - group_name = GroupName, - module = Module, - callback_args = Args }) -> - {Result, State1} = - case needs_view_update(ReqVer, View) of - true -> - View1 = group_to_view(read_group(GroupName)), - {callback_view_changed(Args, Module, View, View1), - check_neighbours(State #state { view = View1 })}; - false -> - {ok, State} - end, - handle_callback_result( - if_callback_success( - Result, fun handle_msg_true/3, fun handle_msg_false/3, Msg, State1)); - -handle_cast({broadcast, _Msg}, State = #state { members_state = undefined }) -> - noreply(State); - -handle_cast({broadcast, Msg}, - State = #state { self = Self, - right = {Self, undefined}, - module = Module, - callback_args = Args }) -> - handle_callback_result({Module:handle_msg(Args, Self, Msg), State}); - -handle_cast({broadcast, Msg}, State) -> - internal_broadcast(Msg, none, State); - -handle_cast(join, State = #state { self = Self, - group_name = GroupName, - members_state = undefined, - module = Module, - callback_args = Args }) -> - View = join_group(Self, GroupName), - MembersState = - case alive_view_members(View) of - [Self] -> blank_member_state(); - _ -> undefined - end, - State1 = check_neighbours(State #state { view = View, - members_state = MembersState }), - handle_callback_result( - {Module:joined(Args, all_known_members(View)), State1}); - -handle_cast(leave, State) -> - {stop, normal, State}. - - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #state { self = Self, - left = Left, - right = Right, - group_name = GroupName, - view = View, - module = Module, - callback_args = Args, - confirms = Confirms }) -> - Member = case {Left, Right} of - {{Member1, MRef}, _} -> Member1; - {_, {Member1, MRef}} -> Member1; - _ -> undefined - end, - case Member of - undefined -> - noreply(State); - _ -> - View1 = - group_to_view(record_dead_member_in_group(Member, GroupName)), - State1 = State #state { view = View1 }, - {Result, State2} = - case alive_view_members(View1) of - [Self] -> - maybe_erase_aliases( - State1 #state { - members_state = blank_member_state(), - confirms = purge_confirms(Confirms) }); - _ -> - %% here we won't be pointing out any deaths: - %% the concern is that there maybe births - %% which we'd otherwise miss. - {callback_view_changed(Args, Module, View, View1), - State1} - end, - handle_callback_result({Result, check_neighbours(State2)}) - end. - - -terminate(Reason, #state { module = Module, - callback_args = Args }) -> - Module:terminate(Args, Reason). - - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -prioritise_info({'DOWN', _MRef, process, _Pid, _Reason}, _State) -> 1; -prioritise_info(_ , _State) -> 0. - - -handle_msg(check_neighbours, State) -> - %% no-op - it's already been done by the calling handle_cast - {ok, State}; - -handle_msg({catchup, Left, MembersStateLeft}, - State = #state { self = Self, - left = {Left, _MRefL}, - right = {Right, _MRefR}, - view = View, - members_state = undefined }) -> - ok = send_right(Right, View, {catchup, Self, MembersStateLeft}), - MembersStateLeft1 = build_members_state(MembersStateLeft), - {ok, State #state { members_state = MembersStateLeft1 }}; - -handle_msg({catchup, Left, MembersStateLeft}, - State = #state { self = Self, - left = {Left, _MRefL}, - view = View, - members_state = MembersState }) - when MembersState =/= undefined -> - MembersStateLeft1 = build_members_state(MembersStateLeft), - AllMembers = lists:usort(?DICT:fetch_keys(MembersState) ++ - ?DICT:fetch_keys(MembersStateLeft1)), - {MembersState1, Activity} = - lists:foldl( - fun (Id, MembersStateActivity) -> - #member { pending_ack = PALeft, last_ack = LA } = - find_member_or_blank(Id, MembersStateLeft1), - with_member_acc( - fun (#member { pending_ack = PA } = Member, Activity1) -> - case is_member_alias(Id, Self, View) of - true -> - {_AcksInFlight, Pubs, _PA1} = - find_prefix_common_suffix(PALeft, PA), - {Member #member { last_ack = LA }, - activity_cons(Id, pubs_from_queue(Pubs), - [], Activity1)}; - false -> - {Acks, _Common, Pubs} = - find_prefix_common_suffix(PA, PALeft), - {Member, - activity_cons(Id, pubs_from_queue(Pubs), - acks_from_queue(Acks), - Activity1)} - end - end, Id, MembersStateActivity) - end, {MembersState, activity_nil()}, AllMembers), - handle_msg({activity, Left, activity_finalise(Activity)}, - State #state { members_state = MembersState1 }); - -handle_msg({catchup, _NotLeft, _MembersState}, State) -> - {ok, State}; - -handle_msg({activity, Left, Activity}, - State = #state { self = Self, - left = {Left, _MRefL}, - view = View, - members_state = MembersState, - confirms = Confirms }) - when MembersState =/= undefined -> - {MembersState1, {Confirms1, Activity1}} = - lists:foldl( - fun ({Id, Pubs, Acks}, MembersStateConfirmsActivity) -> - with_member_acc( - fun (Member = #member { pending_ack = PA, - last_pub = LP, - last_ack = LA }, - {Confirms2, Activity2}) -> - case is_member_alias(Id, Self, View) of - true -> - {ToAck, PA1} = - find_common(queue_from_pubs(Pubs), PA, - queue:new()), - LA1 = last_ack(Acks, LA), - AckNums = acks_from_queue(ToAck), - Confirms3 = maybe_confirm( - Self, Id, Confirms2, AckNums), - {Member #member { pending_ack = PA1, - last_ack = LA1 }, - {Confirms3, - activity_cons( - Id, [], AckNums, Activity2)}}; - false -> - PA1 = apply_acks(Acks, join_pubs(PA, Pubs)), - LA1 = last_ack(Acks, LA), - LP1 = last_pub(Pubs, LP), - {Member #member { pending_ack = PA1, - last_pub = LP1, - last_ack = LA1 }, - {Confirms2, - activity_cons(Id, Pubs, Acks, Activity2)}} - end - end, Id, MembersStateConfirmsActivity) - end, {MembersState, {Confirms, activity_nil()}}, Activity), - State1 = State #state { members_state = MembersState1, - confirms = Confirms1 }, - Activity3 = activity_finalise(Activity1), - {Result, State2} = maybe_erase_aliases(State1), - ok = maybe_send_activity(Activity3, State2), - if_callback_success( - Result, fun activity_true/3, fun activity_false/3, Activity3, State2); - -handle_msg({activity, _NotLeft, _Activity}, State) -> - {ok, State}. - - -noreply(State) -> - {noreply, State, hibernate}. - -reply(Reply, State) -> - {reply, Reply, State, hibernate}. - -internal_broadcast(Msg, From, State = #state { self = Self, - pub_count = PubCount, - members_state = MembersState, - module = Module, - confirms = Confirms, - callback_args = Args }) -> - PubMsg = {PubCount, Msg}, - Activity = activity_cons(Self, [PubMsg], [], activity_nil()), - ok = maybe_send_activity(activity_finalise(Activity), State), - MembersState1 = - with_member( - fun (Member = #member { pending_ack = PA }) -> - Member #member { pending_ack = queue:in(PubMsg, PA) } - end, Self, MembersState), - Confirms1 = case From of - none -> Confirms; - _ -> queue:in({PubCount, From}, Confirms) - end, - handle_callback_result({Module:handle_msg(Args, Self, Msg), - State #state { pub_count = PubCount + 1, - members_state = MembersState1, - confirms = Confirms1 }}). - - -%% --------------------------------------------------------------------------- -%% View construction and inspection -%% --------------------------------------------------------------------------- - -needs_view_update(ReqVer, {Ver, _View}) -> - Ver < ReqVer. - -view_version({Ver, _View}) -> - Ver. - -is_member_alive({dead, _Member}) -> false; -is_member_alive(_) -> true. - -is_member_alias(Self, Self, _View) -> - true; -is_member_alias(Member, Self, View) -> - ?SETS:is_element(Member, - ((fetch_view_member(Self, View)) #view_member.aliases)). - -dead_member_id({dead, Member}) -> Member. - -store_view_member(VMember = #view_member { id = Id }, {Ver, View}) -> - {Ver, ?DICT:store(Id, VMember, View)}. - -with_view_member(Fun, View, Id) -> - store_view_member(Fun(fetch_view_member(Id, View)), View). - -fetch_view_member(Id, {_Ver, View}) -> - ?DICT:fetch(Id, View). - -find_view_member(Id, {_Ver, View}) -> - ?DICT:find(Id, View). - -blank_view(Ver) -> - {Ver, ?DICT:new()}. - -alive_view_members({_Ver, View}) -> - ?DICT:fetch_keys(View). - -all_known_members({_Ver, View}) -> - ?DICT:fold( - fun (Member, #view_member { aliases = Aliases }, Acc) -> - ?SETS:to_list(Aliases) ++ [Member | Acc] - end, [], View). - -group_to_view(#gm_group { members = Members, version = Ver }) -> - Alive = lists:filter(fun is_member_alive/1, Members), - [_|_] = Alive, %% ASSERTION - can't have all dead members - add_aliases(link_view(Alive ++ Alive ++ Alive, blank_view(Ver)), Members). - -link_view([Left, Middle, Right | Rest], View) -> - case find_view_member(Middle, View) of - error -> - link_view( - [Middle, Right | Rest], - store_view_member(#view_member { id = Middle, - aliases = ?SETS:new(), - left = Left, - right = Right }, View)); - {ok, _} -> - View - end; -link_view(_, View) -> - View. - -add_aliases(View, Members) -> - Members1 = ensure_alive_suffix(Members), - {EmptyDeadSet, View1} = - lists:foldl( - fun (Member, {DeadAcc, ViewAcc}) -> - case is_member_alive(Member) of - true -> - {?SETS:new(), - with_view_member( - fun (VMember = - #view_member { aliases = Aliases }) -> - VMember #view_member { - aliases = ?SETS:union(Aliases, DeadAcc) } - end, ViewAcc, Member)}; - false -> - {?SETS:add_element(dead_member_id(Member), DeadAcc), - ViewAcc} - end - end, {?SETS:new(), View}, Members1), - 0 = ?SETS:size(EmptyDeadSet), %% ASSERTION - View1. - -ensure_alive_suffix(Members) -> - queue:to_list(ensure_alive_suffix1(queue:from_list(Members))). - -ensure_alive_suffix1(MembersQ) -> - {{value, Member}, MembersQ1} = queue:out_r(MembersQ), - case is_member_alive(Member) of - true -> MembersQ; - false -> ensure_alive_suffix1(queue:in_r(Member, MembersQ1)) - end. - - -%% --------------------------------------------------------------------------- -%% View modification -%% --------------------------------------------------------------------------- - -join_group(Self, GroupName) -> - join_group(Self, GroupName, read_group(GroupName)). - -join_group(Self, GroupName, {error, not_found}) -> - join_group(Self, GroupName, prune_or_create_group(Self, GroupName)); -join_group(Self, _GroupName, #gm_group { members = [Self] } = Group) -> - group_to_view(Group); -join_group(Self, GroupName, #gm_group { members = Members } = Group) -> - case lists:member(Self, Members) of - true -> - group_to_view(Group); - false -> - case lists:filter(fun is_member_alive/1, Members) of - [] -> - join_group(Self, GroupName, - prune_or_create_group(Self, GroupName)); - Alive -> - Left = lists:nth(random:uniform(length(Alive)), Alive), - try - case gen_server2:call( - Left, {add_on_right, Self}, infinity) of - {ok, Group1} -> group_to_view(Group1); - not_ready -> join_group(Self, GroupName) - end - catch - exit:{R, _} - when R =:= noproc; R =:= normal; R =:= shutdown -> - join_group( - Self, GroupName, - record_dead_member_in_group(Left, GroupName)) - end - end - end. - -read_group(GroupName) -> - case mnesia:dirty_read(?GROUP_TABLE, GroupName) of - [] -> {error, not_found}; - [Group] -> Group - end. - -prune_or_create_group(Self, GroupName) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> GroupNew = #gm_group { name = GroupName, - members = [Self], - version = 0 }, - case mnesia:read(?GROUP_TABLE, GroupName) of - [] -> - mnesia:write(GroupNew), - GroupNew; - [Group1 = #gm_group { members = Members }] -> - case lists:any(fun is_member_alive/1, Members) of - true -> Group1; - false -> mnesia:write(GroupNew), - GroupNew - end - end - end), - Group. - -record_dead_member_in_group(Member, GroupName) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> [Group1 = #gm_group { members = Members, version = Ver }] = - mnesia:read(?GROUP_TABLE, GroupName), - case lists:splitwith( - fun (Member1) -> Member1 =/= Member end, Members) of - {_Members1, []} -> %% not found - already recorded dead - Group1; - {Members1, [Member | Members2]} -> - Members3 = Members1 ++ [{dead, Member} | Members2], - Group2 = Group1 #gm_group { members = Members3, - version = Ver + 1 }, - mnesia:write(Group2), - Group2 - end - end), - Group. - -record_new_member_in_group(GroupName, Left, NewMember, Fun) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> - [#gm_group { members = Members, version = Ver } = Group1] = - mnesia:read(?GROUP_TABLE, GroupName), - {Prefix, [Left | Suffix]} = - lists:splitwith(fun (M) -> M =/= Left end, Members), - Members1 = Prefix ++ [Left, NewMember | Suffix], - Group2 = Group1 #gm_group { members = Members1, - version = Ver + 1 }, - ok = Fun(Group2), - mnesia:write(Group2), - Group2 - end), - Group. - -erase_members_in_group(Members, GroupName) -> - DeadMembers = [{dead, Id} || Id <- Members], - {atomic, Group} = - mnesia:sync_transaction( - fun () -> - [Group1 = #gm_group { members = [_|_] = Members1, - version = Ver }] = - mnesia:read(?GROUP_TABLE, GroupName), - case Members1 -- DeadMembers of - Members1 -> Group1; - Members2 -> Group2 = - Group1 #gm_group { members = Members2, - version = Ver + 1 }, - mnesia:write(Group2), - Group2 - end - end), - Group. - -maybe_erase_aliases(State = #state { self = Self, - group_name = GroupName, - view = View, - members_state = MembersState, - module = Module, - callback_args = Args }) -> - #view_member { aliases = Aliases } = fetch_view_member(Self, View), - {Erasable, MembersState1} - = ?SETS:fold( - fun (Id, {ErasableAcc, MembersStateAcc} = Acc) -> - #member { last_pub = LP, last_ack = LA } = - find_member_or_blank(Id, MembersState), - case can_erase_view_member(Self, Id, LA, LP) of - true -> {[Id | ErasableAcc], - erase_member(Id, MembersStateAcc)}; - false -> Acc - end - end, {[], MembersState}, Aliases), - State1 = State #state { members_state = MembersState1 }, - case Erasable of - [] -> {ok, State1}; - _ -> View1 = group_to_view( - erase_members_in_group(Erasable, GroupName)), - {callback_view_changed(Args, Module, View, View1), - State1 #state { view = View1 }} - end. - -can_erase_view_member(Self, Self, _LA, _LP) -> false; -can_erase_view_member(_Self, _Id, N, N) -> true; -can_erase_view_member(_Self, _Id, _LA, _LP) -> false. - - -%% --------------------------------------------------------------------------- -%% View monitoring and maintanence -%% --------------------------------------------------------------------------- - -ensure_neighbour(_Ver, Self, {Self, undefined}, Self) -> - {Self, undefined}; -ensure_neighbour(Ver, Self, {Self, undefined}, RealNeighbour) -> - ok = gen_server2:cast(RealNeighbour, {?TAG, Ver, check_neighbours}), - {RealNeighbour, maybe_monitor(RealNeighbour, Self)}; -ensure_neighbour(_Ver, _Self, {RealNeighbour, MRef}, RealNeighbour) -> - {RealNeighbour, MRef}; -ensure_neighbour(Ver, Self, {RealNeighbour, MRef}, Neighbour) -> - true = erlang:demonitor(MRef), - Msg = {?TAG, Ver, check_neighbours}, - ok = gen_server2:cast(RealNeighbour, Msg), - ok = case Neighbour of - Self -> ok; - _ -> gen_server2:cast(Neighbour, Msg) - end, - {Neighbour, maybe_monitor(Neighbour, Self)}. - -maybe_monitor(Self, Self) -> - undefined; -maybe_monitor(Other, _Self) -> - erlang:monitor(process, Other). - -check_neighbours(State = #state { self = Self, - left = Left, - right = Right, - view = View }) -> - #view_member { left = VLeft, right = VRight } - = fetch_view_member(Self, View), - Ver = view_version(View), - Left1 = ensure_neighbour(Ver, Self, Left, VLeft), - Right1 = ensure_neighbour(Ver, Self, Right, VRight), - State1 = State #state { left = Left1, right = Right1 }, - ok = maybe_send_catchup(Right, State1), - State1. - -maybe_send_catchup(Right, #state { right = Right }) -> - ok; -maybe_send_catchup(_Right, #state { self = Self, - right = {Self, undefined} }) -> - ok; -maybe_send_catchup(_Right, #state { members_state = undefined }) -> - ok; -maybe_send_catchup(_Right, #state { self = Self, - right = {Right, _MRef}, - view = View, - members_state = MembersState }) -> - send_right(Right, View, - {catchup, Self, prepare_members_state(MembersState)}). - - -%% --------------------------------------------------------------------------- -%% Catch_up delta detection -%% --------------------------------------------------------------------------- - -find_prefix_common_suffix(A, B) -> - {Prefix, A1} = find_prefix(A, B, queue:new()), - {Common, Suffix} = find_common(A1, B, queue:new()), - {Prefix, Common, Suffix}. - -%% Returns the elements of A that occur before the first element of B, -%% plus the remainder of A. -find_prefix(A, B, Prefix) -> - case {queue:out(A), queue:out(B)} of - {{{value, Val}, _A1}, {{value, Val}, _B1}} -> - {Prefix, A}; - {{empty, A1}, {{value, _A}, _B1}} -> - {Prefix, A1}; - {{{value, {NumA, _MsgA} = Val}, A1}, - {{value, {NumB, _MsgB}}, _B1}} when NumA < NumB -> - find_prefix(A1, B, queue:in(Val, Prefix)); - {_, {empty, _B1}} -> - {A, Prefix} %% Prefix well be empty here - end. - -%% A should be a prefix of B. Returns the commonality plus the -%% remainder of B. -find_common(A, B, Common) -> - case {queue:out(A), queue:out(B)} of - {{{value, Val}, A1}, {{value, Val}, B1}} -> - find_common(A1, B1, queue:in(Val, Common)); - {{empty, _A}, _} -> - {Common, B} - end. - - -%% --------------------------------------------------------------------------- -%% Members helpers -%% --------------------------------------------------------------------------- - -with_member(Fun, Id, MembersState) -> - store_member( - Id, Fun(find_member_or_blank(Id, MembersState)), MembersState). - -with_member_acc(Fun, Id, {MembersState, Acc}) -> - {MemberState, Acc1} = Fun(find_member_or_blank(Id, MembersState), Acc), - {store_member(Id, MemberState, MembersState), Acc1}. - -find_member_or_blank(Id, MembersState) -> - case ?DICT:find(Id, MembersState) of - {ok, Result} -> Result; - error -> blank_member() - end. - -erase_member(Id, MembersState) -> - ?DICT:erase(Id, MembersState). - -blank_member() -> - #member { pending_ack = queue:new(), last_pub = -1, last_ack = -1 }. - -blank_member_state() -> - ?DICT:new(). - -store_member(Id, MemberState, MembersState) -> - ?DICT:store(Id, MemberState, MembersState). - -prepare_members_state(MembersState) -> - ?DICT:to_list(MembersState). - -build_members_state(MembersStateList) -> - ?DICT:from_list(MembersStateList). - - -%% --------------------------------------------------------------------------- -%% Activity assembly -%% --------------------------------------------------------------------------- - -activity_nil() -> - queue:new(). - -activity_cons(_Id, [], [], Tail) -> - Tail; -activity_cons(Sender, Pubs, Acks, Tail) -> - queue:in({Sender, Pubs, Acks}, Tail). - -activity_finalise(Activity) -> - queue:to_list(Activity). - -maybe_send_activity([], _State) -> - ok; -maybe_send_activity(Activity, #state { self = Self, - right = {Right, _MRefR}, - view = View }) -> - send_right(Right, View, {activity, Self, Activity}). - -send_right(Right, View, Msg) -> - ok = gen_server2:cast(Right, {?TAG, view_version(View), Msg}). - -callback(Args, Module, Activity) -> - lists:foldl( - fun ({Id, Pubs, _Acks}, ok) -> - lists:foldl(fun ({_PubNum, Pub}, ok) -> - Module:handle_msg(Args, Id, Pub); - (_, Error) -> - Error - end, ok, Pubs); - (_, Error) -> - Error - end, ok, Activity). - -callback_view_changed(Args, Module, OldView, NewView) -> - OldMembers = all_known_members(OldView), - NewMembers = all_known_members(NewView), - Births = NewMembers -- OldMembers, - Deaths = OldMembers -- NewMembers, - case {Births, Deaths} of - {[], []} -> ok; - _ -> Module:members_changed(Args, Births, Deaths) - end. - -handle_callback_result({Result, State}) -> - if_callback_success( - Result, fun no_reply_true/3, fun no_reply_false/3, undefined, State); -handle_callback_result({Result, Reply, State}) -> - if_callback_success( - Result, fun reply_true/3, fun reply_false/3, Reply, State). - -no_reply_true (_Result, _Undefined, State) -> noreply(State). -no_reply_false({stop, Reason}, _Undefined, State) -> {stop, Reason, State}. - -reply_true (_Result, Reply, State) -> reply(Reply, State). -reply_false({stop, Reason}, Reply, State) -> {stop, Reason, Reply, State}. - -handle_msg_true (_Result, Msg, State) -> handle_msg(Msg, State). -handle_msg_false(Result, _Msg, State) -> {Result, State}. - -activity_true(_Result, Activity, State = #state { module = Module, - callback_args = Args }) -> - {callback(Args, Module, Activity), State}. -activity_false(Result, _Activity, State) -> - {Result, State}. - -if_callback_success(ok, True, _False, Arg, State) -> - True(ok, Arg, State); -if_callback_success( - {become, Module, Args} = Result, True, _False, Arg, State) -> - True(Result, Arg, State #state { module = Module, - callback_args = Args }); -if_callback_success({stop, _Reason} = Result, _True, False, Arg, State) -> - False(Result, Arg, State). - -maybe_confirm(_Self, _Id, Confirms, []) -> - Confirms; -maybe_confirm(Self, Self, Confirms, [PubNum | PubNums]) -> - case queue:out(Confirms) of - {empty, _Confirms} -> - Confirms; - {{value, {PubNum, From}}, Confirms1} -> - gen_server2:reply(From, ok), - maybe_confirm(Self, Self, Confirms1, PubNums); - {{value, {PubNum1, _From}}, _Confirms} when PubNum1 > PubNum -> - maybe_confirm(Self, Self, Confirms, PubNums) - end; -maybe_confirm(_Self, _Id, Confirms, _PubNums) -> - Confirms. - -purge_confirms(Confirms) -> - [gen_server2:reply(From, ok) || {_PubNum, From} <- queue:to_list(Confirms)], - queue:new(). - - -%% --------------------------------------------------------------------------- -%% Msg transformation -%% --------------------------------------------------------------------------- - -acks_from_queue(Q) -> - [PubNum || {PubNum, _Msg} <- queue:to_list(Q)]. - -pubs_from_queue(Q) -> - queue:to_list(Q). - -queue_from_pubs(Pubs) -> - queue:from_list(Pubs). - -apply_acks([], Pubs) -> - Pubs; -apply_acks(List, Pubs) -> - {_, Pubs1} = queue:split(length(List), Pubs), - Pubs1. - -join_pubs(Q, []) -> Q; -join_pubs(Q, Pubs) -> queue:join(Q, queue_from_pubs(Pubs)). - -last_ack([], LA) -> - LA; -last_ack(List, LA) -> - LA1 = lists:last(List), - true = LA1 > LA, %% ASSERTION - LA1. - -last_pub([], LP) -> - LP; -last_pub(List, LP) -> - {PubNum, _Msg} = lists:last(List), - true = PubNum > LP, %% ASSERTION - PubNum. diff --git a/src/gm_soak_test.erl b/src/gm_soak_test.erl deleted file mode 100644 index 1f8832a6..00000000 --- a/src/gm_soak_test.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_soak_test). - --export([test/0]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - -%% --------------------------------------------------------------------------- -%% Soak test -%% --------------------------------------------------------------------------- - -get_state() -> - get(state). - -with_state(Fun) -> - put(state, Fun(get_state())). - -inc() -> - case 1 + get(count) of - 100000 -> Now = os:timestamp(), - Start = put(ts, Now), - Diff = timer:now_diff(Now, Start), - Rate = 100000 / (Diff / 1000000), - io:format("~p seeing ~p msgs/sec~n", [self(), Rate]), - put(count, 0); - N -> put(count, N) - end. - -joined([], Members) -> - io:format("Joined ~p (~p members)~n", [self(), length(Members)]), - put(state, dict:from_list([{Member, empty} || Member <- Members])), - put(count, 0), - put(ts, os:timestamp()), - ok. - -members_changed([], Births, Deaths) -> - with_state( - fun (State) -> - State1 = - lists:foldl( - fun (Born, StateN) -> - false = dict:is_key(Born, StateN), - dict:store(Born, empty, StateN) - end, State, Births), - lists:foldl( - fun (Died, StateN) -> - true = dict:is_key(Died, StateN), - dict:store(Died, died, StateN) - end, State1, Deaths) - end), - ok. - -handle_msg([], From, {test_msg, Num}) -> - inc(), - with_state( - fun (State) -> - ok = case dict:find(From, State) of - {ok, died} -> - exit({{from, From}, - {received_posthumous_delivery, Num}}); - {ok, empty} -> ok; - {ok, Num} -> ok; - {ok, Num1} when Num < Num1 -> - exit({{from, From}, - {duplicate_delivery_of, Num1}, - {expecting, Num}}); - {ok, Num1} -> - exit({{from, From}, - {missing_delivery_of, Num}, - {received_early, Num1}}); - error -> - exit({{from, From}, - {received_premature_delivery, Num}}) - end, - dict:store(From, Num + 1, State) - end), - ok. - -terminate([], Reason) -> - io:format("Left ~p (~p)~n", [self(), Reason]), - ok. - -spawn_member() -> - spawn_link( - fun () -> - random:seed(now()), - %% start up delay of no more than 10 seconds - timer:sleep(random:uniform(10000)), - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, []), - Start = random:uniform(10000), - send_loop(Pid, Start, Start + random:uniform(10000)), - gm:leave(Pid), - spawn_more() - end). - -spawn_more() -> - [spawn_member() || _ <- lists:seq(1, 4 - random:uniform(4))]. - -send_loop(_Pid, Target, Target) -> - ok; -send_loop(Pid, Count, Target) when Target > Count -> - case random:uniform(3) of - 3 -> gm:confirmed_broadcast(Pid, {test_msg, Count}); - _ -> gm:broadcast(Pid, {test_msg, Count}) - end, - timer:sleep(random:uniform(5) - 1), %% sleep up to 4 ms - send_loop(Pid, Count + 1, Target). - -test() -> - ok = gm:create_tables(), - spawn_member(), - spawn_member(). diff --git a/src/gm_tests.erl b/src/gm_tests.erl deleted file mode 100644 index 65e9cff0..00000000 --- a/src/gm_tests.erl +++ /dev/null @@ -1,182 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_tests). - --export([test_join_leave/0, - test_broadcast/0, - test_confirmed_broadcast/0, - test_member_death/0, - test_receive_in_order/0, - all_tests/0]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - --define(RECEIVE_OR_THROW(Body, Bool, Error), - receive Body -> - true = Bool, - passed - after 1000 -> - throw(Error) - end). - -joined(Pid, Members) -> - Pid ! {joined, self(), Members}, - ok. - -members_changed(Pid, Births, Deaths) -> - Pid ! {members_changed, self(), Births, Deaths}, - ok. - -handle_msg(Pid, From, Msg) -> - Pid ! {msg, self(), From, Msg}, - ok. - -terminate(Pid, Reason) -> - Pid ! {termination, self(), Reason}, - ok. - -%% --------------------------------------------------------------------------- -%% Functional tests -%% --------------------------------------------------------------------------- - -all_tests() -> - passed = test_join_leave(), - passed = test_broadcast(), - passed = test_confirmed_broadcast(), - passed = test_member_death(), - passed = test_receive_in_order(), - passed. - -test_join_leave() -> - with_two_members(fun (_Pid, _Pid2) -> passed end). - -test_broadcast() -> - test_broadcast(fun gm:broadcast/2). - -test_confirmed_broadcast() -> - test_broadcast(fun gm:confirmed_broadcast/2). - -test_member_death() -> - with_two_members( - fun (Pid, Pid2) -> - {ok, Pid3} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid3, [Pid, Pid2, Pid3], - timeout_joining_gm_group_3), - passed = receive_birth(Pid, Pid3, timeout_waiting_for_birth_3_1), - passed = receive_birth(Pid2, Pid3, timeout_waiting_for_birth_3_2), - - unlink(Pid3), - exit(Pid3, kill), - - %% Have to do some broadcasts to ensure that all members - %% find out about the death. - passed = (test_broadcast_fun(fun gm:confirmed_broadcast/2))( - Pid, Pid2), - - passed = receive_death(Pid, Pid3, timeout_waiting_for_death_3_1), - passed = receive_death(Pid2, Pid3, timeout_waiting_for_death_3_2), - - passed - end). - -test_receive_in_order() -> - with_two_members( - fun (Pid, Pid2) -> - Numbers = lists:seq(1,1000), - [begin ok = gm:broadcast(Pid, N), ok = gm:broadcast(Pid2, N) end - || N <- Numbers], - passed = receive_numbers( - Pid, Pid, {timeout_for_msgs, Pid, Pid}, Numbers), - passed = receive_numbers( - Pid, Pid2, {timeout_for_msgs, Pid, Pid2}, Numbers), - passed = receive_numbers( - Pid2, Pid, {timeout_for_msgs, Pid2, Pid}, Numbers), - passed = receive_numbers( - Pid2, Pid2, {timeout_for_msgs, Pid2, Pid2}, Numbers), - passed - end). - -test_broadcast(Fun) -> - with_two_members(test_broadcast_fun(Fun)). - -test_broadcast_fun(Fun) -> - fun (Pid, Pid2) -> - ok = Fun(Pid, magic_message), - passed = receive_or_throw({msg, Pid, Pid, magic_message}, - timeout_waiting_for_msg), - passed = receive_or_throw({msg, Pid2, Pid, magic_message}, - timeout_waiting_for_msg) - end. - -with_two_members(Fun) -> - ok = gm:create_tables(), - - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid, [Pid], timeout_joining_gm_group_1), - - {ok, Pid2} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid2, [Pid, Pid2], timeout_joining_gm_group_2), - passed = receive_birth(Pid, Pid2, timeout_waiting_for_birth_2), - - passed = Fun(Pid, Pid2), - - ok = gm:leave(Pid), - passed = receive_death(Pid2, Pid, timeout_waiting_for_death_1), - passed = - receive_termination(Pid, normal, timeout_waiting_for_termination_1), - - ok = gm:leave(Pid2), - passed = - receive_termination(Pid2, normal, timeout_waiting_for_termination_2), - - receive X -> throw({unexpected_message, X}) - after 0 -> passed - end. - -receive_or_throw(Pattern, Error) -> - ?RECEIVE_OR_THROW(Pattern, true, Error). - -receive_birth(From, Born, Error) -> - ?RECEIVE_OR_THROW({members_changed, From, Birth, Death}, - ([Born] == Birth) andalso ([] == Death), - Error). - -receive_death(From, Died, Error) -> - ?RECEIVE_OR_THROW({members_changed, From, Birth, Death}, - ([] == Birth) andalso ([Died] == Death), - Error). - -receive_joined(From, Members, Error) -> - ?RECEIVE_OR_THROW({joined, From, Members1}, - lists:usort(Members) == lists:usort(Members1), - Error). - -receive_termination(From, Reason, Error) -> - ?RECEIVE_OR_THROW({termination, From, Reason1}, - Reason == Reason1, - Error). - -receive_numbers(_Pid, _Sender, _Error, []) -> - passed; -receive_numbers(Pid, Sender, Error, [N | Numbers]) -> - ?RECEIVE_OR_THROW({msg, Pid, Sender, M}, - M == N, - Error), - receive_numbers(Pid, Sender, Error, Numbers). diff --git a/src/pg_local.erl b/src/pg_local.erl deleted file mode 100644 index c9c3a3a7..00000000 --- a/src/pg_local.erl +++ /dev/null @@ -1,213 +0,0 @@ -%% This file is a copy of pg2.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) Process groups are node-local only. -%% -%% 2) Groups are created/deleted implicitly. -%% -%% 3) 'join' and 'leave' are asynchronous. -%% -%% 4) the type specs of the exported non-callback functions have been -%% extracted into a separate, guarded section, and rewritten in -%% old-style spec syntax, for better compatibility with older -%% versions of Erlang/OTP. The remaining type specs have been -%% removed. - -%% All modifications are (C) 2010-2011 VMware, Inc. - -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(pg_local). - --export([join/2, leave/2, get_members/1]). --export([sync/0]). %% intended for testing only; not part of official API --export([start/0, start_link/0, init/1, handle_call/3, handle_cast/2, - handle_info/2, terminate/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(name() :: term()). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(join/2 :: (name(), pid()) -> 'ok'). --spec(leave/2 :: (name(), pid()) -> 'ok'). --spec(get_members/1 :: (name()) -> [pid()]). - --spec(sync/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%%% As of R13B03 monitors are used instead of links. - -%%% -%%% Exported functions -%%% - -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). - -start() -> - ensure_started(). - -join(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {join, Name, Pid}). - -leave(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {leave, Name, Pid}). - -get_members(Name) -> - ensure_started(), - group_members(Name). - -sync() -> - ensure_started(), - gen_server:call(?MODULE, sync, infinity). - -%%% -%%% Callback functions from gen_server -%%% - --record(state, {}). - -init([]) -> - pg_local_table = ets:new(pg_local_table, [ordered_set, protected, named_table]), - {ok, #state{}}. - -handle_call(sync, _From, S) -> - {reply, ok, S}; - -handle_call(Request, From, S) -> - error_logger:warning_msg("The pg_local server received an unexpected message:\n" - "handle_call(~p, ~p, _)\n", - [Request, From]), - {noreply, S}. - -handle_cast({join, Name, Pid}, S) -> - join_group(Name, Pid), - {noreply, S}; -handle_cast({leave, Name, Pid}, S) -> - leave_group(Name, Pid), - {noreply, S}; -handle_cast(_, S) -> - {noreply, S}. - -handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S) -> - member_died(MonitorRef), - {noreply, S}; -handle_info(_, S) -> - {noreply, S}. - -terminate(_Reason, _S) -> - true = ets:delete(pg_local_table), - ok. - -%%% -%%% Local functions -%%% - -%%% One ETS table, pg_local_table, is used for bookkeeping. The type of the -%%% table is ordered_set, and the fast matching of partially -%%% instantiated keys is used extensively. -%%% -%%% {{ref, Pid}, MonitorRef, Counter} -%%% {{ref, MonitorRef}, Pid} -%%% Each process has one monitor. Counter is incremented when the -%%% Pid joins some group. -%%% {{member, Name, Pid}, _} -%%% Pid is a member of group Name, GroupCounter is incremented when the -%%% Pid joins the group Name. -%%% {{pid, Pid, Name}} -%%% Pid is a member of group Name. - -member_died(Ref) -> - [{{ref, Ref}, Pid}] = ets:lookup(pg_local_table, {ref, Ref}), - Names = member_groups(Pid), - _ = [leave_group(Name, P) || - Name <- Names, - P <- member_in_group(Pid, Name)], - ok. - -join_group(Name, Pid) -> - Ref_Pid = {ref, Pid}, - try _ = ets:update_counter(pg_local_table, Ref_Pid, {3, +1}) - catch _:_ -> - Ref = erlang:monitor(process, Pid), - true = ets:insert(pg_local_table, {Ref_Pid, Ref, 1}), - true = ets:insert(pg_local_table, {{ref, Ref}, Pid}) - end, - Member_Name_Pid = {member, Name, Pid}, - try _ = ets:update_counter(pg_local_table, Member_Name_Pid, {2, +1}) - catch _:_ -> - true = ets:insert(pg_local_table, {Member_Name_Pid, 1}), - true = ets:insert(pg_local_table, {{pid, Pid, Name}}) - end. - -leave_group(Name, Pid) -> - Member_Name_Pid = {member, Name, Pid}, - try ets:update_counter(pg_local_table, Member_Name_Pid, {2, -1}) of - N -> - if - N =:= 0 -> - true = ets:delete(pg_local_table, {pid, Pid, Name}), - true = ets:delete(pg_local_table, Member_Name_Pid); - true -> - ok - end, - Ref_Pid = {ref, Pid}, - case ets:update_counter(pg_local_table, Ref_Pid, {3, -1}) of - 0 -> - [{Ref_Pid,Ref,0}] = ets:lookup(pg_local_table, Ref_Pid), - true = ets:delete(pg_local_table, {ref, Ref}), - true = ets:delete(pg_local_table, Ref_Pid), - true = erlang:demonitor(Ref, [flush]), - ok; - _ -> - ok - end - catch _:_ -> - ok - end. - -group_members(Name) -> - [P || - [P, N] <- ets:match(pg_local_table, {{member, Name, '$1'},'$2'}), - _ <- lists:seq(1, N)]. - -member_in_group(Pid, Name) -> - [{{member, Name, Pid}, N}] = ets:lookup(pg_local_table, {member, Name, Pid}), - lists:duplicate(N, Pid). - -member_groups(Pid) -> - [Name || [Name] <- ets:match(pg_local_table, {{pid, Pid, '$1'}})]. - -ensure_started() -> - case whereis(?MODULE) of - undefined -> - C = {pg_local, {?MODULE, start_link, []}, permanent, - 16#ffffffff, worker, [?MODULE]}, - supervisor:start_child(kernel_safe_sup, C); - PgLocalPid -> - {ok, PgLocalPid} - end. diff --git a/src/priority_queue.erl b/src/priority_queue.erl deleted file mode 100644 index 4a94b24b..00000000 --- a/src/priority_queue.erl +++ /dev/null @@ -1,176 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% Priority queues have essentially the same interface as ordinary -%% queues, except that a) there is an in/3 that takes a priority, and -%% b) we have only implemented the core API we need. -%% -%% Priorities should be integers - the higher the value the higher the -%% priority - but we don't actually check that. -%% -%% in/2 inserts items with priority 0. -%% -%% We optimise the case where a priority queue is being used just like -%% an ordinary queue. When that is the case we represent the priority -%% queue as an ordinary queue. We could just call into the 'queue' -%% module for that, but for efficiency we implement the relevant -%% functions directly in here, thus saving on inter-module calls and -%% eliminating a level of boxing. -%% -%% When the queue contains items with non-zero priorities, it is -%% represented as a sorted kv list with the inverted Priority as the -%% key and an ordinary queue as the value. Here again we use our own -%% ordinary queue implemention for efficiency, often making recursive -%% calls into the same function knowing that ordinary queues represent -%% a base case. - - --module(priority_queue). - --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(priority() :: integer()). --type(squeue() :: {queue, [any()], [any()]}). --type(pqueue() :: squeue() | {pqueue, [{priority(), squeue()}]}). - --spec(new/0 :: () -> pqueue()). --spec(is_queue/1 :: (any()) -> boolean()). --spec(is_empty/1 :: (pqueue()) -> boolean()). --spec(len/1 :: (pqueue()) -> non_neg_integer()). --spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). --spec(in/2 :: (any(), pqueue()) -> pqueue()). --spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> - {queue, [], []}. - -is_queue({queue, R, F}) when is_list(R), is_list(F) -> - true; -is_queue({pqueue, Queues}) when is_list(Queues) -> - lists:all(fun ({P, Q}) -> is_integer(P) andalso is_queue(Q) end, - Queues); -is_queue(_) -> - false. - -is_empty({queue, [], []}) -> - true; -is_empty(_) -> - false. - -len({queue, R, F}) when is_list(R), is_list(F) -> - length(R) + length(F); -len({pqueue, Queues}) -> - lists:sum([len(Q) || {_, Q} <- Queues]). - -to_list({queue, In, Out}) when is_list(In), is_list(Out) -> - [{0, V} || V <- Out ++ lists:reverse(In, [])]; -to_list({pqueue, Queues}) -> - [{-P, V} || {P, Q} <- Queues, {0, V} <- to_list(Q)]. - -in(Item, Q) -> - in(Item, 0, Q). - -in(X, 0, {queue, [_] = In, []}) -> - {queue, [X], In}; -in(X, 0, {queue, In, Out}) when is_list(In), is_list(Out) -> - {queue, [X|In], Out}; -in(X, Priority, _Q = {queue, [], []}) -> - in(X, Priority, {pqueue, []}); -in(X, Priority, Q = {queue, _, _}) -> - in(X, Priority, {pqueue, [{0, Q}]}); -in(X, Priority, {pqueue, Queues}) -> - P = -Priority, - {pqueue, case lists:keysearch(P, 1, Queues) of - {value, {_, Q}} -> - lists:keyreplace(P, 1, Queues, {P, in(X, Q)}); - false -> - lists:keysort(1, [{P, {queue, [X], []}} | Queues]) - end}. - -out({queue, [], []} = Q) -> - {empty, Q}; -out({queue, [V], []}) -> - {{value, V}, {queue, [], []}}; -out({queue, [Y|In], []}) -> - [V|Out] = lists:reverse(In, []), - {{value, V}, {queue, [Y], Out}}; -out({queue, In, [V]}) when is_list(In) -> - {{value,V}, r2f(In)}; -out({queue, In,[V|Out]}) when is_list(In) -> - {{value, V}, {queue, In, Out}}; -out({pqueue, [{P, Q} | Queues]}) -> - {R, Q1} = out(Q), - NewQ = case is_empty(Q1) of - true -> case Queues of - [] -> {queue, [], []}; - [{0, OnlyQ}] -> OnlyQ; - [_|_] -> {pqueue, Queues} - end; - false -> {pqueue, [{P, Q1} | Queues]} - end, - {R, NewQ}. - -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - -r2f([]) -> {queue, [], []}; -r2f([_] = R) -> {queue, [], R}; -r2f([X,Y]) -> {queue, [X], [Y]}; -r2f([X,Y|R]) -> {queue, [X,Y], lists:reverse(R, [])}. diff --git a/src/rabbit.erl b/src/rabbit.erl deleted file mode 100644 index 6eb59c3e..00000000 --- a/src/rabbit.erl +++ /dev/null @@ -1,510 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit). - --behaviour(application). - --export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, - rotate_logs/1]). - --export([start/2, stop/1]). - --export([log_location/1]). - -%%--------------------------------------------------------------------------- -%% Boot steps. --export([maybe_insert_default_data/0, boot_delegate/0]). - --rabbit_boot_step({codec_correctness_check, - [{description, "codec correctness check"}, - {mfa, {rabbit_binary_generator, - check_empty_content_body_frame_size, - []}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({database, - [{mfa, {rabbit_mnesia, init, []}}, - {requires, file_handle_cache}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({file_handle_cache, - [{description, "file handle cache server"}, - {mfa, {rabbit_sup, start_restartable_child, - [file_handle_cache]}}, - {enables, worker_pool}]}). - --rabbit_boot_step({worker_pool, - [{description, "worker pool"}, - {mfa, {rabbit_sup, start_child, [worker_pool_sup]}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({external_infrastructure, - [{description, "external infrastructure ready"}]}). - --rabbit_boot_step({rabbit_registry, - [{description, "plugin registry"}, - {mfa, {rabbit_sup, start_child, - [rabbit_registry]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_log, - [{description, "logging server"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_log]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_event, - [{description, "statistics event manager"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_event]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({kernel_ready, - [{description, "kernel ready"}, - {requires, external_infrastructure}]}). - --rabbit_boot_step({rabbit_alarm, - [{description, "alarm handler"}, - {mfa, {rabbit_alarm, start, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_memory_monitor, - [{description, "memory monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_memory_monitor]}}, - {requires, rabbit_alarm}, - {enables, core_initialized}]}). - --rabbit_boot_step({guid_generator, - [{description, "guid generator"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_guid]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({delegate_sup, - [{description, "cluster delegate"}, - {mfa, {rabbit, boot_delegate, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_node_monitor, - [{description, "node monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_node_monitor]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({core_initialized, - [{description, "core initialized"}, - {requires, kernel_ready}]}). - --rabbit_boot_step({empty_db_check, - [{description, "empty DB check"}, - {mfa, {?MODULE, maybe_insert_default_data, []}}, - {requires, core_initialized}, - {enables, routing_ready}]}). - --rabbit_boot_step({exchange_recovery, - [{description, "exchange recovery"}, - {mfa, {rabbit_exchange, recover, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({queue_sup_queue_recovery, - [{description, "queue supervisor and queue recovery"}, - {mfa, {rabbit_amqqueue, start, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({routing_ready, - [{description, "message delivery logic ready"}, - {requires, core_initialized}]}). - --rabbit_boot_step({log_relay, - [{description, "error log relay"}, - {mfa, {rabbit_error_logger, boot, []}}, - {requires, routing_ready}, - {enables, networking}]}). - --rabbit_boot_step({direct_client, - [{mfa, {rabbit_direct, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({networking, - [{mfa, {rabbit_networking, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({notify_cluster, - [{description, "notify cluster nodes"}, - {mfa, {rabbit_node_monitor, notify_cluster, []}}, - {requires, networking}]}). - -%%--------------------------------------------------------------------------- - --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --define(APPS, [os_mon, mnesia, rabbit]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(file_suffix() :: binary()). -%% this really should be an abstract type --type(log_location() :: 'tty' | 'undefined' | file:filename()). - --spec(prepare/0 :: () -> 'ok'). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_halt/0 :: () -> 'ok'). --spec(rotate_logs/1 :: (file_suffix()) -> rabbit_types:ok_or_error(any())). --spec(status/0 :: - () -> [{running_applications, [{atom(), string(), string()}]} | - {nodes, [{rabbit_mnesia:node_type(), [node()]}]} | - {running_nodes, [node()]}]). --spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). - --spec(maybe_insert_default_data/0 :: () -> 'ok'). --spec(boot_delegate/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -prepare() -> - ok = ensure_working_log_handlers(). - -start() -> - try - ok = prepare(), - ok = rabbit_misc:start_applications(?APPS) - after - %%give the error loggers some time to catch up - timer:sleep(100) - end. - -stop() -> - ok = rabbit_misc:stop_applications(?APPS). - -stop_and_halt() -> - try - stop() - after - init:stop() - end, - ok. - -status() -> - [{pid, list_to_integer(os:getpid())}, - {running_applications, application:which_applications()}] ++ - rabbit_mnesia:status(). - -rotate_logs(BinarySuffix) -> - Suffix = binary_to_list(BinarySuffix), - log_rotation_result(rotate_logs(log_location(kernel), - Suffix, - rabbit_error_logger_file_h), - rotate_logs(log_location(sasl), - Suffix, - rabbit_sasl_report_file_h)). - -%%-------------------------------------------------------------------- - -start(normal, []) -> - case erts_version_check() of - ok -> - {ok, SupPid} = rabbit_sup:start_link(), - true = register(rabbit, self()), - - print_banner(), - [ok = run_boot_step(Step) || Step <- boot_steps()], - io:format("~nbroker running~n"), - {ok, SupPid}; - Error -> - Error - end. - -stop(_State) -> - terminated_ok = error_logger:delete_report_handler(rabbit_error_logger), - ok = rabbit_alarm:stop(), - ok = case rabbit_mnesia:is_clustered() of - true -> rabbit_amqqueue:on_node_down(node()); - false -> rabbit_mnesia:empty_ram_only_tables() - end, - ok. - -%%--------------------------------------------------------------------------- - -erts_version_check() -> - FoundVer = erlang:system_info(version), - case rabbit_misc:version_compare(?ERTS_MINIMUM, FoundVer, lte) of - true -> ok; - false -> {error, {erlang_version_too_old, - {found, FoundVer}, {required, ?ERTS_MINIMUM}}} - end. - -boot_error(Format, Args) -> - io:format("BOOT ERROR: " ++ Format, Args), - error_logger:error_msg(Format, Args), - timer:sleep(1000), - exit({?MODULE, failure_during_boot}). - -run_boot_step({StepName, Attributes}) -> - Description = case lists:keysearch(description, 1, Attributes) of - {value, {_, D}} -> D; - false -> StepName - end, - case [MFA || {mfa, MFA} <- Attributes] of - [] -> - io:format("-- ~s~n", [Description]); - MFAs -> - io:format("starting ~-60s ...", [Description]), - [try - apply(M,F,A) - catch - _:Reason -> boot_error("FAILED~nReason: ~p~nStacktrace: ~p~n", - [Reason, erlang:get_stacktrace()]) - end || {M,F,A} <- MFAs], - io:format("done~n"), - ok - end. - -boot_steps() -> - sort_boot_steps(rabbit_misc:all_module_attributes(rabbit_boot_step)). - -vertices(_Module, Steps) -> - [{StepName, {StepName, Atts}} || {StepName, Atts} <- Steps]. - -edges(_Module, Steps) -> - [case Key of - requires -> {StepName, OtherStep}; - enables -> {OtherStep, StepName} - end || {StepName, Atts} <- Steps, - {Key, OtherStep} <- Atts, - Key =:= requires orelse Key =:= enables]. - -sort_boot_steps(UnsortedSteps) -> - case rabbit_misc:build_acyclic_graph(fun vertices/2, fun edges/2, - UnsortedSteps) of - {ok, G} -> - %% Use topological sort to find a consistent ordering (if - %% there is one, otherwise fail). - SortedSteps = lists:reverse( - [begin - {StepName, Step} = digraph:vertex(G, StepName), - Step - end || StepName <- digraph_utils:topsort(G)]), - digraph:delete(G), - %% Check that all mentioned {M,F,A} triples are exported. - case [{StepName, {M,F,A}} || - {StepName, Attributes} <- SortedSteps, - {mfa, {M,F,A}} <- Attributes, - not erlang:function_exported(M, F, length(A))] of - [] -> SortedSteps; - MissingFunctions -> boot_error( - "Boot step functions not exported: ~p~n", - [MissingFunctions]) - end; - {error, {vertex, duplicate, StepName}} -> - boot_error("Duplicate boot step name: ~w~n", [StepName]); - {error, {edge, Reason, From, To}} -> - boot_error( - "Could not add boot step dependency of ~w on ~w:~n~s", - [To, From, - case Reason of - {bad_vertex, V} -> - io_lib:format("Boot step not registered: ~w~n", [V]); - {bad_edge, [First | Rest]} -> - [io_lib:format("Cyclic dependency: ~w", [First]), - [io_lib:format(" depends on ~w", [Next]) || - Next <- Rest], - io_lib:format(" depends on ~w~n", [First])] - end]) - end. - -%%--------------------------------------------------------------------------- - -log_location(Type) -> - case application:get_env(Type, case Type of - kernel -> error_logger; - sasl -> sasl_error_logger - end) of - {ok, {file, File}} -> File; - {ok, false} -> undefined; - {ok, tty} -> tty; - {ok, silent} -> undefined; - {ok, Bad} -> throw({error, {cannot_log_to_file, Bad}}); - _ -> undefined - end. - -app_location() -> - {ok, Application} = application:get_application(), - filename:absname(code:where_is_file(atom_to_list(Application) ++ ".app")). - -home_dir() -> - case init:get_argument(home) of - {ok, [[Home]]} -> Home; - Other -> Other - end. - -config_files() -> - case init:get_argument(config) of - {ok, Files} -> [filename:absname( - filename:rootname(File, ".config") ++ ".config") || - File <- Files]; - error -> [] - end. - -%--------------------------------------------------------------------------- - -print_banner() -> - {ok, Product} = application:get_key(id), - {ok, Version} = application:get_key(vsn), - ProductLen = string:len(Product), - io:format("~n" - "+---+ +---+~n" - "| | | |~n" - "| | | |~n" - "| | | |~n" - "| +---+ +-------+~n" - "| |~n" - "| ~s +---+ |~n" - "| | | |~n" - "| ~s +---+ |~n" - "| |~n" - "+-------------------+~n" - "~s~n~s~n~s~n~n", - [Product, string:right([$v|Version], ProductLen), - ?PROTOCOL_VERSION, - ?COPYRIGHT_MESSAGE, ?INFORMATION_MESSAGE]), - Settings = [{"node", node()}, - {"app descriptor", app_location()}, - {"home dir", home_dir()}, - {"config file(s)", config_files()}, - {"cookie hash", rabbit_misc:cookie_hash()}, - {"log", log_location(kernel)}, - {"sasl log", log_location(sasl)}, - {"database dir", rabbit_mnesia:dir()}, - {"erlang version", erlang:system_info(version)}], - DescrLen = 1 + lists:max([length(K) || {K, _V} <- Settings]), - Format = fun (K, V) -> - io:format("~-" ++ integer_to_list(DescrLen) ++ "s: ~s~n", - [K, V]) - end, - lists:foreach(fun ({"config file(s)" = K, []}) -> - Format(K, "(none)"); - ({"config file(s)" = K, [V0 | Vs]}) -> - Format(K, V0), [Format("", V) || V <- Vs]; - ({K, V}) -> - Format(K, V) - end, Settings), - io:nl(). - -ensure_working_log_handlers() -> - Handlers = gen_event:which_handlers(error_logger), - ok = ensure_working_log_handler(error_logger_file_h, - rabbit_error_logger_file_h, - error_logger_tty_h, - log_location(kernel), - Handlers), - - ok = ensure_working_log_handler(sasl_report_file_h, - rabbit_sasl_report_file_h, - sasl_report_tty_h, - log_location(sasl), - Handlers), - ok. - -ensure_working_log_handler(OldFHandler, NewFHandler, TTYHandler, - LogLocation, Handlers) -> - case LogLocation of - undefined -> ok; - tty -> case lists:member(TTYHandler, Handlers) of - true -> ok; - false -> - throw({error, {cannot_log_to_tty, - TTYHandler, not_installed}}) - end; - _ -> case lists:member(NewFHandler, Handlers) of - true -> ok; - false -> case rotate_logs(LogLocation, "", - OldFHandler, NewFHandler) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_log_to_file, - LogLocation, Reason}}) - end - end - end. - -boot_delegate() -> - {ok, Count} = application:get_env(rabbit, delegate_count), - rabbit_sup:start_child(delegate_sup, [Count]). - -maybe_insert_default_data() -> - case rabbit_mnesia:is_db_empty() of - true -> insert_default_data(); - false -> ok - end. - -insert_default_data() -> - {ok, DefaultUser} = application:get_env(default_user), - {ok, DefaultPass} = application:get_env(default_pass), - {ok, DefaultAdmin} = application:get_env(default_user_is_admin), - {ok, DefaultVHost} = application:get_env(default_vhost), - {ok, [DefaultConfigurePerm, DefaultWritePerm, DefaultReadPerm]} = - application:get_env(default_permissions), - ok = rabbit_vhost:add(DefaultVHost), - ok = rabbit_auth_backend_internal:add_user(DefaultUser, DefaultPass), - case DefaultAdmin of - true -> rabbit_auth_backend_internal:set_admin(DefaultUser); - _ -> ok - end, - ok = rabbit_auth_backend_internal:set_permissions(DefaultUser, DefaultVHost, - DefaultConfigurePerm, - DefaultWritePerm, - DefaultReadPerm), - ok. - -rotate_logs(File, Suffix, Handler) -> - rotate_logs(File, Suffix, Handler, Handler). - -rotate_logs(File, Suffix, OldHandler, NewHandler) -> - case File of - undefined -> ok; - tty -> ok; - _ -> gen_event:swap_handler( - error_logger, - {OldHandler, swap}, - {NewHandler, {File, Suffix}}) - end. - -log_rotation_result({error, MainLogError}, {error, SaslLogError}) -> - {error, {{cannot_rotate_main_logs, MainLogError}, - {cannot_rotate_sasl_logs, SaslLogError}}}; -log_rotation_result({error, MainLogError}, ok) -> - {error, {cannot_rotate_main_logs, MainLogError}}; -log_rotation_result(ok, {error, SaslLogError}) -> - {error, {cannot_rotate_sasl_logs, SaslLogError}}; -log_rotation_result(ok, ok) -> - ok. diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl deleted file mode 100644 index b0b57af4..00000000 --- a/src/rabbit_access_control.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_access_control). - --include("rabbit.hrl"). - --export([user_pass_login/2, check_user_pass_login/2, check_user_login/2, - check_vhost_access/2, check_resource_access/3, list_vhosts/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([permission_atom/0, vhost_permission_atom/0]). - --type(permission_atom() :: 'configure' | 'read' | 'write'). --type(vhost_permission_atom() :: 'read' | 'write'). - --spec(user_pass_login/2 :: - (rabbit_types:username(), rabbit_types:password()) - -> rabbit_types:user() | rabbit_types:channel_exit()). --spec(check_user_pass_login/2 :: - (rabbit_types:username(), rabbit_types:password()) - -> {'ok', rabbit_types:user()} | {'refused', string(), [any()]}). --spec(check_vhost_access/2 :: - (rabbit_types:user(), rabbit_types:vhost()) - -> 'ok' | rabbit_types:channel_exit()). --spec(check_resource_access/3 :: - (rabbit_types:user(), rabbit_types:r(atom()), permission_atom()) - -> 'ok' | rabbit_types:channel_exit()). --spec(list_vhosts/2 :: (rabbit_types:user(), vhost_permission_atom()) - -> [rabbit_types:vhost()]). - --endif. - -%%---------------------------------------------------------------------------- - -user_pass_login(User, Pass) -> - ?LOGDEBUG("Login with user ~p pass ~p~n", [User, Pass]), - case check_user_pass_login(User, Pass) of - {refused, Msg, Args} -> - rabbit_misc:protocol_error( - access_refused, "login refused: ~s", [io_lib:format(Msg, Args)]); - {ok, U} -> - U - end. - -check_user_pass_login(Username, Password) -> - check_user_login(Username, [{password, Password}]). - -check_user_login(Username, AuthProps) -> - {ok, Modules} = application:get_env(rabbit, auth_backends), - lists:foldl( - fun(Module, {refused, _, _}) -> - case Module:check_user_login(Username, AuthProps) of - {error, E} -> - {refused, "~s failed authenticating ~s: ~p~n", - [Module, Username, E]}; - Else -> - Else - end; - (_, {ok, User}) -> - {ok, User} - end, {refused, "No modules checked '~s'", [Username]}, Modules). - -check_vhost_access(User = #user{ username = Username, - auth_backend = Module }, VHostPath) -> - ?LOGDEBUG("Checking VHost access for ~p to ~p~n", [Username, VHostPath]), - check_access( - fun() -> - rabbit_vhost:exists(VHostPath) andalso - Module:check_vhost_access(User, VHostPath, write) - end, - "~s failed checking vhost access to ~s for ~s: ~p~n", - [Module, VHostPath, Username], - "access to vhost '~s' refused for user '~s'", - [VHostPath, Username]). - -check_resource_access(User, R = #resource{kind = exchange, name = <<"">>}, - Permission) -> - check_resource_access(User, R#resource{name = <<"amq.default">>}, - Permission); -check_resource_access(User = #user{username = Username, auth_backend = Module}, - Resource, Permission) -> - check_access( - fun() -> Module:check_resource_access(User, Resource, Permission) end, - "~s failed checking resource access to ~p for ~s: ~p~n", - [Module, Resource, Username], - "access to ~s refused for user '~s'", - [rabbit_misc:rs(Resource), Username]). - -check_access(Fun, ErrStr, ErrArgs, RefStr, RefArgs) -> - Allow = case Fun() of - {error, _} = E -> - rabbit_log:error(ErrStr, ErrArgs ++ [E]), - false; - Else -> - Else - end, - case Allow of - true -> - ok; - false -> - rabbit_misc:protocol_error(access_refused, RefStr, RefArgs) - end. - -%% Permission = write -> log in -%% Permission = read -> learn of the existence of (only relevant for -%% management plugin) -list_vhosts(User = #user{username = Username, auth_backend = Module}, - Permission) -> - lists:filter( - fun(VHost) -> - case Module:check_vhost_access(User, VHost, Permission) of - {error, _} = E -> - rabbit_log:warning("~w failed checking vhost access " - "to ~s for ~s: ~p~n", - [Module, VHost, Username, E]), - false; - Else -> - Else - end - end, rabbit_vhost:list()). diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl deleted file mode 100644 index 37e40981..00000000 --- a/src/rabbit_alarm.erl +++ /dev/null @@ -1,109 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_alarm). - --behaviour(gen_event). - --export([start/0, stop/0, register/2]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - --record(alarms, {alertees, vm_memory_high_watermark = false}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(mfa_tuple() :: {atom(), atom(), list()}). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(register/2 :: (pid(), mfa_tuple()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - ok = alarm_handler:add_alarm_handler(?MODULE, []), - {ok, MemoryWatermark} = application:get_env(vm_memory_high_watermark), - ok = case MemoryWatermark == 0 of - true -> ok; - false -> rabbit_sup:start_restartable_child(vm_memory_monitor, - [MemoryWatermark]) - end, - ok. - -stop() -> - ok = alarm_handler:delete_alarm_handler(?MODULE). - -register(Pid, HighMemMFA) -> - gen_event:call(alarm_handler, ?MODULE, - {register, Pid, HighMemMFA}, - infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #alarms{alertees = dict:new()}}. - -handle_call({register, Pid, {M, F, A} = HighMemMFA}, - State = #alarms{alertees = Alertess}) -> - _MRef = erlang:monitor(process, Pid), - ok = case State#alarms.vm_memory_high_watermark of - true -> apply(M, F, A ++ [Pid, true]); - false -> ok - end, - NewAlertees = dict:store(Pid, HighMemMFA, Alertess), - {ok, State#alarms.vm_memory_high_watermark, - State#alarms{alertees = NewAlertees}}; - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({set_alarm, {vm_memory_high_watermark, []}}, State) -> - ok = alert(true, State#alarms.alertees), - {ok, State#alarms{vm_memory_high_watermark = true}}; - -handle_event({clear_alarm, vm_memory_high_watermark}, State) -> - ok = alert(false, State#alarms.alertees), - {ok, State#alarms{vm_memory_high_watermark = false}}; - -handle_event(_Event, State) -> - {ok, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #alarms{alertees = Alertess}) -> - {ok, State#alarms{alertees = dict:erase(Pid, Alertess)}}; - -handle_info(_Info, State) -> - {ok, State}. - -terminate(_Arg, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -alert(_Alert, undefined) -> - ok; -alert(Alert, Alertees) -> - dict:fold(fun (Pid, {M, F, A}, Acc) -> - ok = erlang:apply(M, F, A ++ [Pid, Alert]), - Acc - end, ok, Alertees). diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl deleted file mode 100644 index 46b78c39..00000000 --- a/src/rabbit_amqqueue.erl +++ /dev/null @@ -1,505 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue). - --export([start/0, stop/0, declare/5, delete_immediately/1, delete/3, purge/1]). --export([internal_declare/2, internal_delete/1, - maybe_run_queue_via_backing_queue/2, - maybe_run_queue_via_backing_queue_async/2, - sync_timeout/1, update_ram_duration/1, set_ram_duration_target/2, - set_maximum_since_use/2, maybe_expire/1, drop_expired/1]). --export([pseudo_queue/2]). --export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, - check_exclusive_access/2, with_exclusive_access_or_die/3, - stat/1, deliver/2, requeue/3, ack/4, reject/4]). --export([list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). --export([emit_stats/1]). --export([consumers/1, consumers_all/1]). --export([basic_get/3, basic_consume/7, basic_cancel/4]). --export([notify_sent/2, unblock/2, flush_all/2]). --export([commit_all/3, rollback_all/3, notify_down_all/2, limit_all/3]). --export([on_node_down/1]). - --include("rabbit.hrl"). --include_lib("stdlib/include/qlc.hrl"). - --define(INTEGER_ARG_TYPES, [byte, short, signedint, long]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, qmsg/0]). - --type(name() :: rabbit_types:r('queue')). - --type(qlen() :: rabbit_types:ok(non_neg_integer())). --type(qfun(A) :: fun ((rabbit_types:amqqueue()) -> A)). --type(qmsg() :: {name(), pid(), msg_id(), boolean(), rabbit_types:message()}). --type(msg_id() :: non_neg_integer()). --type(ok_or_errors() :: - 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). - --type(queue_or_not_found() :: rabbit_types:amqqueue() | 'not_found'). - --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(declare/5 :: - (name(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> {'new' | 'existing', rabbit_types:amqqueue()} | - rabbit_types:channel_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:amqqueue()) | - rabbit_types:error('not_found')). --spec(with/2 :: (name(), qfun(A)) -> A | rabbit_types:error('not_found')). --spec(with_or_die/2 :: - (name(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(assert_equivalence/5 :: - (rabbit_types:amqqueue(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> 'ok' | rabbit_types:channel_exit() | - rabbit_types:connection_exit()). --spec(check_exclusive_access/2 :: - (rabbit_types:amqqueue(), pid()) - -> 'ok' | rabbit_types:channel_exit()). --spec(with_exclusive_access_or_die/3 :: - (name(), pid(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:amqqueue()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:amqqueue()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:amqqueue(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 :: (rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(consumers/1 :: - (rabbit_types:amqqueue()) - -> [{pid(), rabbit_types:ctag(), boolean()}]). --spec(consumers_all/1 :: - (rabbit_types:vhost()) - -> [{name(), pid(), rabbit_types:ctag(), boolean()}]). --spec(stat/1 :: - (rabbit_types:amqqueue()) - -> {'ok', non_neg_integer(), non_neg_integer()}). --spec(emit_stats/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete_immediately/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete/3 :: - (rabbit_types:amqqueue(), 'false', 'false') - -> qlen(); - (rabbit_types:amqqueue(), 'true' , 'false') - -> qlen() | rabbit_types:error('in_use'); - (rabbit_types:amqqueue(), 'false', 'true' ) - -> qlen() | rabbit_types:error('not_empty'); - (rabbit_types:amqqueue(), 'true' , 'true' ) - -> qlen() | - rabbit_types:error('in_use') | - rabbit_types:error('not_empty')). --spec(purge/1 :: (rabbit_types:amqqueue()) -> qlen()). --spec(deliver/2 :: (pid(), rabbit_types:delivery()) -> boolean()). --spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). --spec(ack/4 :: - (pid(), rabbit_types:maybe(rabbit_types:txn()), [msg_id()], pid()) - -> 'ok'). --spec(reject/4 :: (pid(), [msg_id()], boolean(), pid()) -> 'ok'). --spec(commit_all/3 :: ([pid()], rabbit_types:txn(), pid()) -> ok_or_errors()). --spec(rollback_all/3 :: ([pid()], rabbit_types:txn(), pid()) -> 'ok'). --spec(notify_down_all/2 :: ([pid()], pid()) -> ok_or_errors()). --spec(limit_all/3 :: ([pid()], pid(), pid() | 'undefined') -> ok_or_errors()). --spec(basic_get/3 :: (rabbit_types:amqqueue(), pid(), boolean()) -> - {'ok', non_neg_integer(), qmsg()} | 'empty'). --spec(basic_consume/7 :: - (rabbit_types:amqqueue(), boolean(), pid(), pid() | 'undefined', - rabbit_types:ctag(), boolean(), any()) - -> rabbit_types:ok_or_error('exclusive_consume_unavailable')). --spec(basic_cancel/4 :: - (rabbit_types:amqqueue(), pid(), rabbit_types:ctag(), any()) -> 'ok'). --spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(flush_all/2 :: ([pid()], pid()) -> 'ok'). --spec(internal_declare/2 :: - (rabbit_types:amqqueue(), boolean()) - -> queue_or_not_found() | rabbit_misc:thunk(queue_or_not_found())). --spec(internal_delete/1 :: - (name()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit() | - fun ((boolean()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit())). --spec(maybe_run_queue_via_backing_queue/2 :: - (pid(), (fun ((A) -> {[rabbit_guid:guid()], A}))) -> 'ok'). --spec(maybe_run_queue_via_backing_queue_async/2 :: - (pid(), (fun ((A) -> {[rabbit_guid:guid()], A}))) -> 'ok'). --spec(sync_timeout/1 :: (pid()) -> 'ok'). --spec(update_ram_duration/1 :: (pid()) -> 'ok'). --spec(set_ram_duration_target/2 :: (pid(), number() | 'infinity') -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). --spec(maybe_expire/1 :: (pid()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(pseudo_queue/2 :: (name(), pid()) -> rabbit_types:amqqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - DurableQueues = find_durable_queues(), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:start([QName || #amqqueue{name = QName} <- DurableQueues]), - {ok,_} = supervisor:start_child( - rabbit_sup, - {rabbit_amqqueue_sup, - {rabbit_amqqueue_sup, start_link, []}, - transient, infinity, supervisor, [rabbit_amqqueue_sup]}), - _RealDurableQueues = recover_durable_queues(DurableQueues), - ok. - -stop() -> - ok = supervisor:terminate_child(rabbit_sup, rabbit_amqqueue_sup), - ok = supervisor:delete_child(rabbit_sup, rabbit_amqqueue_sup), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:stop(). - -find_durable_queues() -> - Node = node(), - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end). - -recover_durable_queues(DurableQueues) -> - Qs = [start_queue_process(Q) || Q <- DurableQueues], - [Q || Q <- Qs, - gen_server2:call(Q#amqqueue.pid, {init, true}, infinity) == Q]. - -declare(QueueName, Durable, AutoDelete, Args, Owner) -> - ok = check_declare_arguments(QueueName, Args), - Q = start_queue_process(#amqqueue{name = QueueName, - durable = Durable, - auto_delete = AutoDelete, - arguments = Args, - exclusive_owner = Owner, - pid = none}), - case gen_server2:call(Q#amqqueue.pid, {init, false}, infinity) of - not_found -> rabbit_misc:not_found(QueueName); - Q1 -> Q1 - end. - -internal_declare(Q, true) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> ok = store_queue(Q), rabbit_misc:const(Q) end); -internal_declare(Q = #amqqueue{name = QueueName}, false) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> - case mnesia:read({rabbit_durable_queue, QueueName}) of - [] -> ok = store_queue(Q), - B = add_default_binding(Q), - fun (Tx) -> B(Tx), Q end; - [_] -> %% Q exists on stopped node - rabbit_misc:const(not_found) - end; - [ExistingQ = #amqqueue{pid = QPid}] -> - case rabbit_misc:is_process_alive(QPid) of - true -> rabbit_misc:const(ExistingQ); - false -> TailFun = internal_delete(QueueName), - fun (Tx) -> TailFun(Tx), ExistingQ end - end - end - end). - -store_queue(Q = #amqqueue{durable = true}) -> - ok = mnesia:write(rabbit_durable_queue, Q, write), - ok = mnesia:write(rabbit_queue, Q, write), - ok; -store_queue(Q = #amqqueue{durable = false}) -> - ok = mnesia:write(rabbit_queue, Q, write), - ok. - -start_queue_process(Q) -> - {ok, Pid} = rabbit_amqqueue_sup:start_child([Q]), - Q#amqqueue{pid = Pid}. - -add_default_binding(#amqqueue{name = QueueName}) -> - ExchangeName = rabbit_misc:r(QueueName, exchange, <<>>), - RoutingKey = QueueName#resource.name, - rabbit_binding:add(#binding{source = ExchangeName, - destination = QueueName, - key = RoutingKey, - args = []}). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_queue, Name}). - -with(Name, F, E) -> - case lookup(Name) of - {ok, Q} -> rabbit_misc:with_exit_handler(E, fun () -> F(Q) end); - {error, not_found} -> E() - end. - -with(Name, F) -> - with(Name, F, fun () -> {error, not_found} end). -with_or_die(Name, F) -> - with(Name, F, fun () -> rabbit_misc:not_found(Name) end). - -assert_equivalence(#amqqueue{durable = Durable, - auto_delete = AutoDelete} = Q, - Durable, AutoDelete, RequiredArgs, Owner) -> - assert_args_equivalence(Q, RequiredArgs), - check_exclusive_access(Q, Owner, strict); -assert_equivalence(#amqqueue{name = QueueName}, - _Durable, _AutoDelete, _RequiredArgs, _Owner) -> - rabbit_misc:protocol_error( - precondition_failed, "parameters for ~s not equivalent", - [rabbit_misc:rs(QueueName)]). - -check_exclusive_access(Q, Owner) -> check_exclusive_access(Q, Owner, lax). - -check_exclusive_access(#amqqueue{exclusive_owner = Owner}, Owner, _MatchType) -> - ok; -check_exclusive_access(#amqqueue{exclusive_owner = none}, _ReaderPid, lax) -> - ok; -check_exclusive_access(#amqqueue{name = QueueName}, _ReaderPid, _MatchType) -> - rabbit_misc:protocol_error( - resource_locked, - "cannot obtain exclusive access to locked ~s", - [rabbit_misc:rs(QueueName)]). - -with_exclusive_access_or_die(Name, ReaderPid, F) -> - with_or_die(Name, - fun (Q) -> check_exclusive_access(Q, ReaderPid), F(Q) end). - -assert_args_equivalence(#amqqueue{name = QueueName, arguments = Args}, - RequiredArgs) -> - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, QueueName, - [<<"x-expires">>]). - -check_declare_arguments(QueueName, Args) -> - [case Fun(rabbit_misc:table_lookup(Args, Key)) of - ok -> ok; - {error, Error} -> rabbit_misc:protocol_error( - precondition_failed, - "invalid arg '~s' for ~s: ~w", - [Key, rabbit_misc:rs(QueueName), Error]) - end || {Key, Fun} <- - [{<<"x-expires">>, fun check_integer_argument/1}, - {<<"x-message-ttl">>, fun check_integer_argument/1}]], - ok. - -check_integer_argument(undefined) -> - ok; -check_integer_argument({Type, Val}) when Val > 0 -> - case lists:member(Type, ?INTEGER_ARG_TYPES) of - true -> ok; - false -> {error, {unacceptable_type, Type}} - end; -check_integer_argument({_Type, Val}) -> - {error, {value_zero_or_less, Val}}. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_queue, - #amqqueue{name = rabbit_misc:r(VHostPath, queue), _ = '_'}). - -info_keys() -> rabbit_amqqueue_process:info_keys(). - -map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). - -info(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, info). - -info(#amqqueue{ pid = QPid }, Items) -> - case delegate_call(QPid, {info, Items}) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). - -consumers(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, consumers). - -consumers_all(VHostPath) -> - lists:append( - map(VHostPath, - fun (Q) -> [{Q#amqqueue.name, ChPid, ConsumerTag, AckRequired} || - {ChPid, ConsumerTag, AckRequired} <- consumers(Q)] - end)). - -stat(#amqqueue{pid = QPid}) -> - delegate_call(QPid, stat). - -emit_stats(#amqqueue{pid = QPid}) -> - delegate_cast(QPid, emit_stats). - -delete_immediately(#amqqueue{ pid = QPid }) -> - gen_server2:cast(QPid, delete_immediately). - -delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}). - -purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge). - -deliver(QPid, Delivery = #delivery{immediate = true}) -> - gen_server2:call(QPid, {deliver_immediately, Delivery}, infinity); -deliver(QPid, Delivery = #delivery{mandatory = true}) -> - gen_server2:call(QPid, {deliver, Delivery}, infinity), - true; -deliver(QPid, Delivery) -> - gen_server2:cast(QPid, {deliver, Delivery}), - true. - -requeue(QPid, MsgIds, ChPid) -> - delegate_call(QPid, {requeue, MsgIds, ChPid}). - -ack(QPid, Txn, MsgIds, ChPid) -> - delegate_cast(QPid, {ack, Txn, MsgIds, ChPid}). - -reject(QPid, MsgIds, Requeue, ChPid) -> - delegate_cast(QPid, {reject, MsgIds, Requeue, ChPid}). - -commit_all(QPids, Txn, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {commit, Txn, ChPid}, infinity) end, - QPids). - -rollback_all(QPids, Txn, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {rollback, Txn, ChPid}) end). - -notify_down_all(QPids, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, infinity) end, - QPids). - -limit_all(QPids, ChPid, LimiterPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> - gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) - end). - -basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> - delegate_call(QPid, {basic_get, ChPid, NoAck}). - -basic_consume(#amqqueue{pid = QPid}, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg) -> - delegate_call(QPid, {basic_consume, NoAck, ChPid, - LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg}). - -basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> - ok = delegate_call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}). - -notify_sent(QPid, ChPid) -> - gen_server2:cast(QPid, {notify_sent, ChPid}). - -unblock(QPid, ChPid) -> - delegate_cast(QPid, {unblock, ChPid}). - -flush_all(QPids, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). - -internal_delete1(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - ok = mnesia:delete({rabbit_durable_queue, QueueName}), - %% we want to execute some things, as decided by rabbit_exchange, - %% after the transaction. - rabbit_binding:remove_for_destination(QueueName). - -internal_delete(QueueName) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> rabbit_misc:const({error, not_found}); - [_] -> Deletions = internal_delete1(QueueName), - fun (Tx) -> ok = rabbit_binding:process_deletions( - Deletions, Tx) - end - end - end). - -maybe_run_queue_via_backing_queue(QPid, Fun) -> - gen_server2:call(QPid, {maybe_run_queue_via_backing_queue, Fun}, infinity). - -maybe_run_queue_via_backing_queue_async(QPid, Fun) -> - gen_server2:cast(QPid, {maybe_run_queue_via_backing_queue, Fun}). - -sync_timeout(QPid) -> - gen_server2:cast(QPid, sync_timeout). - -update_ram_duration(QPid) -> - gen_server2:cast(QPid, update_ram_duration). - -set_ram_duration_target(QPid, Duration) -> - gen_server2:cast(QPid, {set_ram_duration_target, Duration}). - -set_maximum_since_use(QPid, Age) -> - gen_server2:cast(QPid, {set_maximum_since_use, Age}). - -maybe_expire(QPid) -> - gen_server2:cast(QPid, maybe_expire). - -drop_expired(QPid) -> - gen_server2:cast(QPid, drop_expired). - -on_node_down(Node) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> qlc:e(qlc:q([delete_queue(QueueName) || - #amqqueue{name = QueueName, pid = Pid} - <- mnesia:table(rabbit_queue), - node(Pid) == Node])) - end, - fun (Deletions, Tx) -> - rabbit_binding:process_deletions( - lists:foldl(fun rabbit_binding:combine_deletions/2, - rabbit_binding:new_deletions(), - Deletions), - Tx) - end). - -delete_queue(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - rabbit_binding:remove_transient_for_destination(QueueName). - -pseudo_queue(QueueName, Pid) -> - #amqqueue{name = QueueName, - durable = false, - auto_delete = false, - arguments = [], - pid = Pid}. - -safe_delegate_call_ok(F, Pids) -> - case delegate:invoke(Pids, fun (Pid) -> - rabbit_misc:with_exit_handler( - fun () -> ok end, - fun () -> F(Pid) end) - end) of - {_, []} -> ok; - {_, Bad} -> {error, Bad} - end. - -delegate_call(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> gen_server2:call(P, Msg, infinity) end). - -delegate_cast(Pid, Msg) -> - delegate:invoke_no_result(Pid, fun (P) -> gen_server2:cast(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl deleted file mode 100644 index 44053593..00000000 --- a/src/rabbit_amqqueue_process.erl +++ /dev/null @@ -1,1160 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_process). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(gen_server2). - --define(UNSENT_MESSAGE_LIMIT, 100). --define(SYNC_INTERVAL, 25). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). - --define(BASE_MESSAGE_PROPERTIES, - #message_properties{expiry = undefined, needs_confirming = false}). - --export([start_link/1, info_keys/0]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2]). - -% Queue's state --record(q, {q, - exclusive_consumer, - has_had_consumers, - backing_queue, - backing_queue_state, - active_consumers, - blocked_consumers, - expires, - sync_timer_ref, - rate_timer_ref, - expiry_timer_ref, - stats_timer, - guid_to_channel, - ttl, - ttl_timer_ref - }). - --record(consumer, {tag, ack_required}). - -%% These are held in our process dictionary --record(cr, {consumer_count, - ch_pid, - limiter_pid, - monitor_ref, - acktags, - is_limit_active, - txn, - unsent_message_count}). - --define(STATISTICS_KEYS, - [pid, - exclusive_consumer_pid, - exclusive_consumer_tag, - messages_ready, - messages_unacknowledged, - messages, - consumers, - memory, - backing_queue_status - ]). - --define(CREATION_EVENT_KEYS, - [pid, - name, - durable, - auto_delete, - arguments, - owner_pid - ]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - -start_link(Q) -> gen_server2:start_link(?MODULE, Q, []). - -info_keys() -> ?INFO_KEYS. - -%%---------------------------------------------------------------------------- - -init(Q) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - process_flag(trap_exit, true), - {ok, BQ} = application:get_env(backing_queue_module), - - {ok, #q{q = Q#amqqueue{pid = self()}, - exclusive_consumer = none, - has_had_consumers = false, - backing_queue = BQ, - backing_queue_state = undefined, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - expires = undefined, - sync_timer_ref = undefined, - rate_timer_ref = undefined, - expiry_timer_ref = undefined, - ttl = undefined, - stats_timer = rabbit_event:init_stats_timer(), - guid_to_channel = dict:new()}, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -terminate(shutdown, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate({shutdown, _}, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate(_Reason, State = #q{backing_queue = BQ}) -> - %% FIXME: How do we cancel active subscriptions? - terminate_shutdown(fun (BQS) -> - rabbit_event:notify( - queue_deleted, [{pid, self()}]), - BQS1 = BQ:delete_and_terminate(BQS), - %% don't care if the internal delete - %% doesn't return 'ok'. - rabbit_amqqueue:internal_delete(qname(State)), - BQS1 - end, State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -declare(Recover, From, - State = #q{q = Q = #amqqueue{name = QName, durable = IsDurable}, - backing_queue = BQ, backing_queue_state = undefined, - stats_timer = StatsTimer}) -> - case rabbit_amqqueue:internal_declare(Q, Recover) of - not_found -> {stop, normal, not_found, State}; - Q -> gen_server2:reply(From, {new, Q}), - ok = file_handle_cache:register_callback( - rabbit_amqqueue, set_maximum_since_use, - [self()]), - ok = rabbit_memory_monitor:register( - self(), {rabbit_amqqueue, - set_ram_duration_target, [self()]}), - BQS = BQ:init(QName, IsDurable, Recover), - State1 = process_args(State#q{backing_queue_state = BQS}), - rabbit_event:notify(queue_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> emit_stats(State1) end), - noreply(State1); - Q1 -> {stop, normal, {existing, Q1}, State} - end. - -process_args(State = #q{q = #amqqueue{arguments = Arguments}}) -> - lists:foldl(fun({Arg, Fun}, State1) -> - case rabbit_misc:table_lookup(Arguments, Arg) of - {_Type, Val} -> Fun(Val, State1); - undefined -> State1 - end - end, State, [{<<"x-expires">>, fun init_expires/2}, - {<<"x-message-ttl">>, fun init_ttl/2}]). - -init_expires(Expires, State) -> ensure_expiry_timer(State#q{expires = Expires}). - -init_ttl(TTL, State) -> drop_expired_messages(State#q{ttl = TTL}). - -terminate_shutdown(Fun, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - stop_sync_timer(stop_rate_timer(State)), - case BQS of - undefined -> State; - _ -> ok = rabbit_memory_monitor:deregister(self()), - BQS1 = lists:foldl( - fun (#cr{txn = none}, BQSN) -> - BQSN; - (#cr{txn = Txn}, BQSN) -> - {_AckTags, BQSN1} = - BQ:tx_rollback(Txn, BQSN), - BQSN1 - end, BQS, all_ch_record()), - [emit_consumer_deleted(Ch, CTag) - || {Ch, CTag, _} <- consumers(State1)], - State1#q{backing_queue_state = Fun(BQS1)} - end. - -reply(Reply, NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {reply, Reply, NewState1, Timeout}. - -noreply(NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {noreply, NewState1, Timeout}. - -next_state(State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - ensure_rate_timer(State), - State2 = ensure_stats_timer(State1), - case BQ:needs_idle_timeout(BQS) of - true -> {ensure_sync_timer(State2), 0}; - false -> {stop_sync_timer(State2), hibernate} - end. - -ensure_sync_timer(State = #q{sync_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?SYNC_INTERVAL, rabbit_amqqueue, sync_timeout, [self()]), - State#q{sync_timer_ref = TRef}; -ensure_sync_timer(State) -> - State. - -stop_sync_timer(State = #q{sync_timer_ref = undefined}) -> - State; -stop_sync_timer(State = #q{sync_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{sync_timer_ref = undefined}. - -ensure_rate_timer(State = #q{rate_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), - State#q{rate_timer_ref = TRef}; -ensure_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -ensure_rate_timer(State) -> - State. - -stop_rate_timer(State = #q{rate_timer_ref = undefined}) -> - State; -stop_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{rate_timer_ref = undefined}. - -stop_expiry_timer(State = #q{expiry_timer_ref = undefined}) -> - State; -stop_expiry_timer(State = #q{expiry_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{expiry_timer_ref = undefined}. - -%% We wish to expire only when there are no consumers *and* the expiry -%% hasn't been refreshed (by queue.declare or basic.get) for the -%% configured period. -ensure_expiry_timer(State = #q{expires = undefined}) -> - State; -ensure_expiry_timer(State = #q{expires = Expires}) -> - case is_unused(State) of - true -> - NewState = stop_expiry_timer(State), - {ok, TRef} = timer:apply_after( - Expires, rabbit_amqqueue, maybe_expire, [self()]), - NewState#q{expiry_timer_ref = TRef}; - false -> - State - end. - -ensure_stats_timer(State = #q{stats_timer = StatsTimer, - q = Q}) -> - State#q{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> rabbit_amqqueue:emit_stats(Q) end)}. - -assert_invariant(#q{active_consumers = AC, - backing_queue = BQ, backing_queue_state = BQS}) -> - true = (queue:is_empty(AC) orelse BQ:is_empty(BQS)). - -lookup_ch(ChPid) -> - case get({ch, ChPid}) of - undefined -> not_found; - C -> C - end. - -ch_record(ChPid) -> - Key = {ch, ChPid}, - case get(Key) of - undefined -> - MonitorRef = erlang:monitor(process, ChPid), - C = #cr{consumer_count = 0, - ch_pid = ChPid, - monitor_ref = MonitorRef, - acktags = sets:new(), - is_limit_active = false, - txn = none, - unsent_message_count = 0}, - put(Key, C), - C; - C = #cr{} -> C - end. - -store_ch_record(C = #cr{ch_pid = ChPid}) -> - put({ch, ChPid}, C). - -maybe_store_ch_record(C = #cr{consumer_count = ConsumerCount, - acktags = ChAckTags, - txn = Txn, - unsent_message_count = UnsentMessageCount}) -> - case {sets:size(ChAckTags), ConsumerCount, UnsentMessageCount, Txn} of - {0, 0, 0, none} -> ok = erase_ch_record(C), - false; - _ -> store_ch_record(C), - true - end. - -erase_ch_record(#cr{ch_pid = ChPid, - limiter_pid = LimiterPid, - monitor_ref = MonitorRef}) -> - ok = rabbit_limiter:unregister(LimiterPid, self()), - erlang:demonitor(MonitorRef), - erase({ch, ChPid}), - ok. - -all_ch_record() -> - [C || {{ch, _}, C} <- get()]. - -is_ch_blocked(#cr{unsent_message_count = Count, is_limit_active = Limited}) -> - Limited orelse Count >= ?UNSENT_MESSAGE_LIMIT. - -ch_record_state_transition(OldCR, NewCR) -> - BlockedOld = is_ch_blocked(OldCR), - BlockedNew = is_ch_blocked(NewCR), - if BlockedOld andalso not(BlockedNew) -> unblock; - BlockedNew andalso not(BlockedOld) -> block; - true -> ok - end. - -deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - case queue:out(ActiveConsumers) of - {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}}, - ActiveConsumersTail} -> - C = #cr{limiter_pid = LimiterPid, - unsent_message_count = Count, - acktags = ChAckTags} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of - true -> - {{Message, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), AckTag, IsDelivered, Message}), - ChAckTags1 = - case AckRequired of - true -> sets:add_element(AckTag, ChAckTags); - false -> ChAckTags - end, - NewC = C#cr{unsent_message_count = Count + 1, - acktags = ChAckTags1}, - true = maybe_store_ch_record(NewC), - {NewActiveConsumers, NewBlockedConsumers} = - case ch_record_state_transition(C, NewC) of - ok -> {queue:in(QEntry, ActiveConsumersTail), - BlockedConsumers}; - block -> - {ActiveConsumers1, BlockedConsumers1} = - move_consumers(ChPid, - ActiveConsumersTail, - BlockedConsumers), - {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} - end, - State2 = State1#q{ - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}, - deliver_msgs_to_consumers(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> - true = maybe_store_ch_record(C#cr{is_limit_active = true}), - {NewActiveConsumers, NewBlockedConsumers} = - move_consumers(ChPid, - ActiveConsumers, - BlockedConsumers), - deliver_msgs_to_consumers( - Funs, FunAcc, - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} - end; - {empty, _} -> - {FunAcc, State} - end. - -deliver_from_queue_pred(IsEmpty, _State) -> - not IsEmpty. - -deliver_from_queue_deliver(AckRequired, false, State) -> - {{Message, IsDelivered, AckTag, Remaining}, State1} = - fetch(AckRequired, State), - {{Message, IsDelivered, AckTag}, 0 == Remaining, State1}. - -confirm_messages(Guids, State = #q{guid_to_channel = GTC}) -> - {CMs, GTC1} = - lists:foldl( - fun(Guid, {CMs, GTC0}) -> - case dict:find(Guid, GTC0) of - {ok, {ChPid, MsgSeqNo}} -> - {gb_trees_cons(ChPid, MsgSeqNo, CMs), - dict:erase(Guid, GTC0)}; - _ -> - {CMs, GTC0} - end - end, {gb_trees:empty(), GTC}, Guids), - gb_trees:map(fun(ChPid, MsgSeqNos) -> - rabbit_channel:confirm(ChPid, MsgSeqNos) - end, CMs), - State#q{guid_to_channel = GTC1}. - -gb_trees_cons(Key, Value, Tree) -> - case gb_trees:lookup(Key, Tree) of - {value, Values} -> gb_trees:update(Key, [Value | Values], Tree); - none -> gb_trees:insert(Key, [Value], Tree) - end. - -record_confirm_message(#delivery{msg_seq_no = undefined}, State) -> - {no_confirm, State}; -record_confirm_message(#delivery{sender = ChPid, - msg_seq_no = MsgSeqNo, - message = #basic_message { - is_persistent = true, - guid = Guid}}, - State = - #q{guid_to_channel = GTC, - q = #amqqueue{durable = true}}) -> - {confirm, - State#q{guid_to_channel = dict:store(Guid, {ChPid, MsgSeqNo}, GTC)}}; -record_confirm_message(_Delivery, State) -> - {no_confirm, State}. - -run_message_queue(State) -> - Funs = {fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3}, - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - drop_expired_messages(State), - IsEmpty = BQ:is_empty(BQS), - {_IsEmpty1, State2} = deliver_msgs_to_consumers(Funs, IsEmpty, State1), - State2. - -attempt_delivery(#delivery{txn = none, - sender = ChPid, - message = Message, - msg_seq_no = MsgSeqNo}, - {NeedsConfirming, State = #q{backing_queue = BQ}}) -> - %% must confirm immediately if it has a MsgSeqNo and not NeedsConfirming - case {NeedsConfirming, MsgSeqNo} of - {_, undefined} -> ok; - {no_confirm, _} -> rabbit_channel:confirm(ChPid, [MsgSeqNo]); - {confirm, _} -> ok - end, - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1 = #q{backing_queue_state = BQS}) -> - %% we don't need an expiry here because messages are - %% not being enqueued, so we use an empty - %% message_properties. - {AckTag, BQS1} = - BQ:publish_delivered( - AckRequired, Message, - (?BASE_MESSAGE_PROPERTIES)#message_properties{ - needs_confirming = (NeedsConfirming =:= confirm)}, - BQS), - {{Message, false, AckTag}, true, - State1#q{backing_queue_state = BQS1}} - end, - {Delivered, State1} = - deliver_msgs_to_consumers({ PredFun, DeliverFun }, false, State), - {Delivered, NeedsConfirming, State1}; -attempt_delivery(#delivery{txn = Txn, - sender = ChPid, - message = Message}, - {NeedsConfirming, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}}) -> - store_ch_record((ch_record(ChPid))#cr{txn = Txn}), - {true, - NeedsConfirming, - State#q{backing_queue_state = - BQ:tx_publish(Txn, Message, ?BASE_MESSAGE_PROPERTIES, BQS)}}. - -deliver_or_enqueue(Delivery, State) -> - case attempt_delivery(Delivery, record_confirm_message(Delivery, State)) of - {true, _, State1} -> - {true, State1}; - {false, NeedsConfirming, State1 = #q{backing_queue = BQ, - backing_queue_state = BQS}} -> - #delivery{message = Message} = Delivery, - BQS1 = BQ:publish(Message, - (message_properties(State)) #message_properties{ - needs_confirming = - (NeedsConfirming =:= confirm)}, - BQS), - {false, ensure_ttl_timer(State1#q{backing_queue_state = BQS1})} - end. - -requeue_and_run(AckTags, State = #q{backing_queue = BQ, ttl=TTL}) -> - maybe_run_queue_via_backing_queue( - fun (BQS) -> - {[], BQ:requeue(AckTags, reset_msg_expiry_fun(TTL), BQS)} - end, State). - -fetch(AckRequired, State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - {Result, BQS1} = BQ:fetch(AckRequired, BQS), - {Result, State#q{backing_queue_state = BQS1}}. - -add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). - -remove_consumer(ChPid, ConsumerTag, Queue) -> - queue:filter(fun ({CP, #consumer{tag = CT}}) -> - (CP /= ChPid) or (CT /= ConsumerTag) - end, Queue). - -remove_consumers(ChPid, Queue) -> - {Kept, Removed} = split_by_channel(ChPid, Queue), - [emit_consumer_deleted(Ch, CTag) || - {Ch, #consumer{tag = CTag}} <- queue:to_list(Removed)], - Kept. - -move_consumers(ChPid, From, To) -> - {Kept, Removed} = split_by_channel(ChPid, From), - {Kept, queue:join(To, Removed)}. - -split_by_channel(ChPid, Queue) -> - {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, - queue:to_list(Queue)), - {queue:from_list(Kept), queue:from_list(Removed)}. - -possibly_unblock(State, ChPid, Update) -> - case lookup_ch(ChPid) of - not_found -> - State; - C -> - NewC = Update(C), - maybe_store_ch_record(NewC), - case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> {NewBlockedConsumers, NewActiveConsumers} = - move_consumers(ChPid, - State#q.blocked_consumers, - State#q.active_consumers), - run_message_queue( - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}) - end - end. - -should_auto_delete(#q{q = #amqqueue{auto_delete = false}}) -> false; -should_auto_delete(#q{has_had_consumers = false}) -> false; -should_auto_delete(State) -> is_unused(State). - -handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(DownPid) of - not_found -> - {ok, State}; - C = #cr{ch_pid = ChPid, txn = Txn, acktags = ChAckTags} -> - ok = erase_ch_record(C), - State1 = State#q{ - exclusive_consumer = case Holder of - {ChPid, _} -> none; - Other -> Other - end, - active_consumers = remove_consumers( - ChPid, State#q.active_consumers), - blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, - case should_auto_delete(State1) of - true -> {stop, State1}; - false -> State2 = case Txn of - none -> State1; - _ -> rollback_transaction(Txn, C, - State1) - end, - {ok, requeue_and_run(sets:to_list(ChAckTags), - ensure_expiry_timer(State2))} - end - end. - -cancel_holder(ChPid, ConsumerTag, {ChPid, ConsumerTag}) -> - none; -cancel_holder(_ChPid, _ConsumerTag, Holder) -> - Holder. - -check_exclusive_access({_ChPid, _ConsumerTag}, _ExclusiveConsume, _State) -> - in_use; -check_exclusive_access(none, false, _State) -> - ok; -check_exclusive_access(none, true, State) -> - case is_unused(State) of - true -> ok; - false -> in_use - end. - -is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso - queue:is_empty(State#q.blocked_consumers). - -maybe_send_reply(_ChPid, undefined) -> ok; -maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). - -qname(#q{q = #amqqueue{name = QName}}) -> QName. - -backing_queue_idle_timeout(State = #q{backing_queue = BQ}) -> - maybe_run_queue_via_backing_queue( - fun (BQS) -> {[], BQ:idle_timeout(BQS)} end, State). - -maybe_run_queue_via_backing_queue(Fun, State = #q{backing_queue_state = BQS}) -> - {Guids, BQS1} = Fun(BQS), - run_message_queue( - confirm_messages(Guids, State#q{backing_queue_state = BQS1})). - -commit_transaction(Txn, From, C = #cr{acktags = ChAckTags}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL}) -> - {AckTags, BQS1} = BQ:tx_commit( - Txn, fun () -> gen_server2:reply(From, ok) end, - reset_msg_expiry_fun(TTL), BQS), - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1, txn = none}), - State#q{backing_queue_state = BQS1}. - -rollback_transaction(Txn, C, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {_AckTags, BQS1} = BQ:tx_rollback(Txn, BQS), - %% Iff we removed acktags from the channel record on ack+txn then - %% we would add them back in here. - maybe_store_ch_record(C#cr{txn = none}), - State#q{backing_queue_state = BQS1}. - -subtract_acks(A, B) when is_list(B) -> - lists:foldl(fun sets:del_element/2, A, B). - -reset_msg_expiry_fun(TTL) -> - fun(MsgProps) -> - MsgProps#message_properties{expiry = calculate_msg_expiry(TTL)} - end. - -message_properties(#q{ttl=TTL}) -> - #message_properties{expiry = calculate_msg_expiry(TTL)}. - -calculate_msg_expiry(undefined) -> undefined; -calculate_msg_expiry(TTL) -> now_micros() + (TTL * 1000). - -drop_expired_messages(State = #q{ttl = undefined}) -> - State; -drop_expired_messages(State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - Now = now_micros(), - BQS1 = BQ:dropwhile( - fun (#message_properties{expiry = Expiry}) -> - Now > Expiry - end, BQS), - ensure_ttl_timer(State#q{backing_queue_state = BQS1}). - -ensure_ttl_timer(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL, - ttl_timer_ref = undefined}) - when TTL =/= undefined -> - case BQ:is_empty(BQS) of - true -> State; - false -> TRef = timer:apply_after(TTL, rabbit_amqqueue, drop_expired, - [self()]), - State#q{ttl_timer_ref = TRef} - end; -ensure_ttl_timer(State) -> - State. - -now_micros() -> timer:now_diff(now(), {0,0,0}). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(name, #q{q = #amqqueue{name = Name}}) -> Name; -i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; -i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; -i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(pid, _) -> - self(); -i(owner_pid, #q{q = #amqqueue{exclusive_owner = none}}) -> - ''; -i(owner_pid, #q{q = #amqqueue{exclusive_owner = ExclusiveOwner}}) -> - ExclusiveOwner; -i(exclusive_consumer_pid, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_pid, #q{exclusive_consumer = {ChPid, _ConsumerTag}}) -> - ChPid; -i(exclusive_consumer_tag, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_tag, #q{exclusive_consumer = {_ChPid, ConsumerTag}}) -> - ConsumerTag; -i(messages_ready, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:len(BQS); -i(messages_unacknowledged, _) -> - lists:sum([sets:size(C#cr.acktags) || C <- all_ch_record()]); -i(messages, State) -> - lists:sum([i(Item, State) || Item <- [messages_ready, - messages_unacknowledged]]); -i(consumers, State) -> - queue:len(State#q.active_consumers) + queue:len(State#q.blocked_consumers); -i(memory, _) -> - {memory, M} = process_info(self(), memory), - M; -i(backing_queue_status, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:status(BQS); -i(Item, _) -> - throw({bad_argument, Item}). - -consumers(#q{active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - rabbit_misc:queue_fold( - fun ({ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}, Acc) -> - [{ChPid, ConsumerTag, AckRequired} | Acc] - end, [], queue:join(ActiveConsumers, BlockedConsumers)). - -emit_stats(State) -> - emit_stats(State, []). - -emit_stats(State, Extra) -> - rabbit_event:notify(queue_stats, Extra ++ infos(?STATISTICS_KEYS, State)). - -emit_consumer_created(ChPid, ConsumerTag, Exclusive, AckRequired) -> - rabbit_event:notify(consumer_created, - [{consumer_tag, ConsumerTag}, - {exclusive, Exclusive}, - {ack_required, AckRequired}, - {channel, ChPid}, - {queue, self()}]). - -emit_consumer_deleted(ChPid, ConsumerTag) -> - rabbit_event:notify(consumer_deleted, - [{consumer_tag, ConsumerTag}, - {channel, ChPid}, - {queue, self()}]). - -%--------------------------------------------------------------------------- - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - consumers -> 9; - {maybe_run_queue_via_backing_queue, _Fun} -> 6; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - update_ram_duration -> 8; - delete_immediately -> 8; - {set_ram_duration_target, _Duration} -> 8; - {set_maximum_since_use, _Age} -> 8; - maybe_expire -> 8; - drop_expired -> 8; - emit_stats -> 7; - {ack, _Txn, _MsgIds, _ChPid} -> 7; - {reject, _MsgIds, _Requeue, _ChPid} -> 7; - {notify_sent, _ChPid} -> 7; - {unblock, _ChPid} -> 7; - {maybe_run_queue_via_backing_queue, _Fun} -> 6; - sync_timeout -> 6; - _ -> 0 - end. - -prioritise_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - #q{q = #amqqueue{exclusive_owner = DownPid}}) -> 8; -prioritise_info(_Msg, _State) -> 0. - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = none}}) -> - declare(Recover, From, State); - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = Owner}}) -> - case rabbit_misc:is_process_alive(Owner) of - true -> erlang:monitor(process, Owner), - declare(Recover, From, State); - false -> #q{backing_queue = BQ, backing_queue_state = undefined, - q = #amqqueue{name = QName, durable = IsDurable}} = State, - gen_server2:reply(From, not_found), - case Recover of - true -> ok; - _ -> rabbit_log:warning( - "Queue ~p exclusive owner went away~n", [QName]) - end, - BQS = BQ:init(QName, IsDurable, Recover), - %% Rely on terminate to delete the queue. - {stop, normal, State#q{backing_queue_state = BQS}} - end; - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(consumers, _From, State) -> - reply(consumers(State), State); - -handle_call({deliver_immediately, Delivery}, - _From, State) -> - %% Synchronous, "immediate" delivery mode - %% - %% FIXME: Is this correct semantics? - %% - %% I'm worried in particular about the case where an exchange has - %% two queues against a particular routing key, and a message is - %% sent in immediate mode through the binding. In non-immediate - %% mode, both queues get the message, saving it for later if - %% there's noone ready to receive it just now. In immediate mode, - %% should both queues still get the message, somehow, or should - %% just all ready-to-consume queues get the message, with unready - %% queues discarding the message? - %% - {Delivered, _NeedsConfirming, State1} = - attempt_delivery(Delivery, record_confirm_message(Delivery, State)), - reply(Delivered, State1); - -handle_call({deliver, Delivery}, From, State) -> - %% Synchronous, "mandatory" delivery mode. Reply asap. - gen_server2:reply(From, true), - {_Delivered, NewState} = deliver_or_enqueue(Delivery, State), - noreply(NewState); - -handle_call({commit, Txn, ChPid}, From, State) -> - case lookup_ch(ChPid) of - not_found -> reply(ok, State); - C -> noreply(run_message_queue( - commit_transaction(Txn, From, C, State))) - end; - -handle_call({notify_down, ChPid}, _From, State) -> - %% we want to do this synchronously, so that auto_deleted queues - %% are no longer visible by the time we send a response to the - %% client. The queue is ultimately deleted in terminate/2; if we - %% return stop with a reply, terminate/2 will be called by - %% gen_server2 *before* the reply is sent. - case handle_ch_down(ChPid, State) of - {ok, NewState} -> reply(ok, NewState); - {stop, NewState} -> {stop, normal, ok, NewState} - end; - -handle_call({basic_get, ChPid, NoAck}, _From, - State = #q{q = #amqqueue{name = QName}}) -> - AckRequired = not NoAck, - State1 = ensure_expiry_timer(State), - case fetch(AckRequired, drop_expired_messages(State1)) of - {empty, State2} -> - reply(empty, State2); - {{Message, IsDelivered, AckTag, Remaining}, State2} -> - State3 = - case AckRequired of - true -> C = #cr{acktags = ChAckTags} = ch_record(ChPid), - true = maybe_store_ch_record( - C#cr{acktags = - sets:add_element(AckTag, - ChAckTags)}), - State2; - false -> State2 - end, - Msg = {QName, self(), AckTag, IsDelivered, Message}, - reply({ok, Remaining, Msg}, State3) - end; - -handle_call({basic_consume, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg}, - _From, State = #q{exclusive_consumer = ExistingHolder}) -> - case check_exclusive_access(ExistingHolder, ExclusiveConsume, - State) of - in_use -> - reply({error, exclusive_consume_unavailable}, State); - ok -> - C = #cr{consumer_count = ConsumerCount} = ch_record(ChPid), - Consumer = #consumer{tag = ConsumerTag, - ack_required = not NoAck}, - true = maybe_store_ch_record(C#cr{consumer_count = ConsumerCount +1, - limiter_pid = LimiterPid}), - ok = case ConsumerCount of - 0 -> rabbit_limiter:register(LimiterPid, self()); - _ -> ok - end, - ExclusiveConsumer = if ExclusiveConsume -> {ChPid, ConsumerTag}; - true -> ExistingHolder - end, - State1 = State#q{has_had_consumers = true, - exclusive_consumer = ExclusiveConsumer}, - ok = maybe_send_reply(ChPid, OkMsg), - State2 = - case is_ch_blocked(C) of - true -> State1#q{ - blocked_consumers = - add_consumer( - ChPid, Consumer, - State1#q.blocked_consumers)}; - false -> run_message_queue( - State1#q{ - active_consumers = - add_consumer( - ChPid, Consumer, - State1#q.active_consumers)}) - end, - emit_consumer_created(ChPid, ConsumerTag, ExclusiveConsume, - not NoAck), - reply(ok, State2) - end; - -handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, - State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(ChPid) of - not_found -> - ok = maybe_send_reply(ChPid, OkMsg), - reply(ok, State); - C = #cr{consumer_count = ConsumerCount, - limiter_pid = LimiterPid} -> - C1 = C#cr{consumer_count = ConsumerCount -1}, - maybe_store_ch_record( - case ConsumerCount of - 1 -> ok = rabbit_limiter:unregister(LimiterPid, self()), - C1#cr{limiter_pid = undefined}; - _ -> C1 - end), - emit_consumer_deleted(ChPid, ConsumerTag), - ok = maybe_send_reply(ChPid, OkMsg), - NewState = - State#q{exclusive_consumer = cancel_holder(ChPid, - ConsumerTag, - Holder), - active_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.active_consumers), - blocked_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.blocked_consumers)}, - case should_auto_delete(NewState) of - false -> reply(ok, ensure_expiry_timer(NewState)); - true -> {stop, normal, ok, NewState} - end - end; - -handle_call(stat, _From, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS, - active_consumers = ActiveConsumers} = - drop_expired_messages(ensure_expiry_timer(State)), - reply({ok, BQ:len(BQS), queue:len(ActiveConsumers)}, State1); - -handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q{backing_queue_state = BQS, backing_queue = BQ}) -> - IsEmpty = BQ:is_empty(BQS), - IsUnused = is_unused(State), - if - IfEmpty and not(IsEmpty) -> - reply({error, not_empty}, State); - IfUnused and not(IsUnused) -> - reply({error, in_use}, State); - true -> - {stop, normal, {ok, BQ:len(BQS)}, State} - end; - -handle_call(purge, _From, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {Count, BQS1} = BQ:purge(BQS), - reply({ok, Count}, State#q{backing_queue_state = BQS1}); - -handle_call({requeue, AckTags, ChPid}, From, State) -> - gen_server2:reply(From, ok), - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(requeue_and_run(AckTags, State)) - end; - -handle_call({maybe_run_queue_via_backing_queue, Fun}, _From, State) -> - reply(ok, maybe_run_queue_via_backing_queue(Fun, State)). - - -handle_cast({maybe_run_queue_via_backing_queue, Fun}, State) -> - noreply(maybe_run_queue_via_backing_queue(Fun, State)); - -handle_cast(sync_timeout, State) -> - noreply(backing_queue_idle_timeout(State#q{sync_timer_ref = undefined})); - -handle_cast({deliver, Delivery}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - {_Delivered, NewState} = deliver_or_enqueue(Delivery, State), - noreply(NewState); - -handle_cast({ack, Txn, AckTags, ChPid}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - {C1, State1} = - case Txn of - none -> ChAckTags1 = subtract_acks(ChAckTags, AckTags), - NewC = C#cr{acktags = ChAckTags1}, - BQS1 = BQ:ack(AckTags, BQS), - {NewC, State#q{backing_queue_state = BQS1}}; - _ -> BQS1 = BQ:tx_ack(Txn, AckTags, BQS), - {C#cr{txn = Txn}, - State#q{backing_queue_state = BQS1}} - end, - maybe_store_ch_record(C1), - noreply(State1) - end; - -handle_cast({reject, AckTags, Requeue, ChPid}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(case Requeue of - true -> requeue_and_run(AckTags, State); - false -> BQS1 = BQ:ack(AckTags, BQS), - State#q{backing_queue_state = BQS1} - end) - end; - -handle_cast({rollback, Txn, ChPid}, State) -> - noreply(case lookup_ch(ChPid) of - not_found -> State; - C -> rollback_transaction(Txn, C, State) - end); - -handle_cast(delete_immediately, State) -> - {stop, normal, State}; - -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - -handle_cast({notify_sent, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C = #cr{unsent_message_count = Count}) -> - C#cr{unsent_message_count = Count - 1} - end)); - -handle_cast({limit, ChPid, LimiterPid}, State) -> - noreply( - possibly_unblock( - State, ChPid, - fun (C = #cr{consumer_count = ConsumerCount, - limiter_pid = OldLimiterPid, - is_limit_active = Limited}) -> - if ConsumerCount =/= 0 andalso OldLimiterPid == undefined -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, - NewLimited = Limited andalso LimiterPid =/= undefined, - C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({flush, ChPid}, State) -> - ok = rabbit_channel:flushed(ChPid, self()), - noreply(State); - -handle_cast(update_ram_duration, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State#q{rate_timer_ref = just_measured, - backing_queue_state = BQS2}); - -handle_cast({set_ram_duration_target, Duration}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - BQS1 = BQ:set_ram_duration_target(Duration, BQS), - noreply(State#q{backing_queue_state = BQS1}); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_cast(maybe_expire, State) -> - case is_unused(State) of - true -> ?LOGDEBUG("Queue lease expired for ~p~n", [State#q.q]), - {stop, normal, State}; - false -> noreply(ensure_expiry_timer(State)) - end; - -handle_cast(drop_expired, State) -> - noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); - -handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> - %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), - State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - assert_invariant(State1), - {noreply, State1, hibernate}. - -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> - %% Exclusively owned queues must disappear with their owner. In - %% the case of clean shutdown we delete the queue synchronously in - %% the reader - although not required by the spec this seems to - %% match what people expect (see bug 21824). However we need this - %% monitor-and-async- delete in case the connection goes away - %% unexpectedly. - {stop, normal, State}; -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> - case handle_ch_down(DownPid, State) of - {ok, NewState} -> noreply(NewState); - {stop, NewState} -> {stop, normal, NewState} - end; - -handle_info(timeout, State) -> - noreply(backing_queue_idle_timeout(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; - -handle_info(Info, State) -> - ?LOGDEBUG("Info in queue: ~p~n", [Info]), - {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q{backing_queue_state = undefined}) -> - {hibernate, State}; -handle_pre_hibernate(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - stats_timer = StatsTimer}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - BQS3 = BQ:handle_pre_hibernate(BQS2), - rabbit_event:if_enabled(StatsTimer, - fun () -> - emit_stats(State, [{idle_since, now()}]) - end), - State1 = State#q{stats_timer = rabbit_event:stop_stats_timer(StatsTimer), - backing_queue_state = BQS3}, - {hibernate, stop_rate_timer(State1)}. diff --git a/src/rabbit_amqqueue_sup.erl b/src/rabbit_amqqueue_sup.erl deleted file mode 100644 index 1344956e..00000000 --- a/src/rabbit_amqqueue_sup.erl +++ /dev/null @@ -1,38 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_sup). - --behaviour(supervisor2). - --export([start_link/0, start_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor2:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Args) -> - supervisor2:start_child(?SERVER, Args). - -init([]) -> - {ok, {{simple_one_for_one_terminate, 10, 10}, - [{rabbit_amqqueue, {rabbit_amqqueue_process, start_link, []}, - temporary, ?MAX_WAIT, worker, [rabbit_amqqueue_process]}]}}. diff --git a/src/rabbit_auth_backend.erl b/src/rabbit_auth_backend.erl deleted file mode 100644 index 09820c5b..00000000 --- a/src/rabbit_auth_backend.erl +++ /dev/null @@ -1,61 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description proplist as with auth mechanisms, - %% exchanges. Currently unused. - {description, 0}, - - %% Check a user can log in, given a username and a proplist of - %% authentication information (e.g. [{password, Password}]). - %% - %% Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {error, Error} - %% Something went wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {check_user_login, 2}, - - %% Given #user, vhost path and permission, can a user access a vhost? - %% Permission is read - learn of the existence of (only relevant for - %% management plugin) - %% or write - log in - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_vhost_access, 3}, - - %% Given #user, resource and permission, can a user access a resource? - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_resource_access, 3} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_backend_internal.erl b/src/rabbit_auth_backend_internal.erl deleted file mode 100644 index a564480b..00000000 --- a/src/rabbit_auth_backend_internal.erl +++ /dev/null @@ -1,332 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend_internal). --include("rabbit.hrl"). - --behaviour(rabbit_auth_backend). - --export([description/0]). --export([check_user_login/2, check_vhost_access/3, check_resource_access/3]). - --export([add_user/2, delete_user/1, change_password/2, set_admin/1, - clear_admin/1, list_users/0, lookup_user/1, clear_password/1]). --export([make_salt/0, check_password/2, change_password_hash/2, - hash_password/1]). --export([set_permissions/5, clear_permissions/2, - list_permissions/0, list_vhost_permissions/1, list_user_permissions/1, - list_user_vhost_permissions/2]). - --include("rabbit_auth_backend_spec.hrl"). - --ifdef(use_specs). - --type(regexp() :: binary()). - --spec(add_user/2 :: (rabbit_types:username(), rabbit_types:password()) -> 'ok'). --spec(delete_user/1 :: (rabbit_types:username()) -> 'ok'). --spec(change_password/2 :: (rabbit_types:username(), rabbit_types:password()) - -> 'ok'). --spec(clear_password/1 :: (rabbit_types:username()) -> 'ok'). --spec(make_salt/0 :: () -> binary()). --spec(check_password/2 :: (rabbit_types:password(), - rabbit_types:password_hash()) -> boolean()). --spec(change_password_hash/2 :: (rabbit_types:username(), - rabbit_types:password_hash()) -> 'ok'). --spec(hash_password/1 :: (rabbit_types:password()) - -> rabbit_types:password_hash()). --spec(set_admin/1 :: (rabbit_types:username()) -> 'ok'). --spec(clear_admin/1 :: (rabbit_types:username()) -> 'ok'). --spec(list_users/0 :: () -> [{rabbit_types:username(), boolean()}]). --spec(lookup_user/1 :: (rabbit_types:username()) - -> rabbit_types:ok(rabbit_types:internal_user()) - | rabbit_types:error('not_found')). --spec(set_permissions/5 ::(rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()) -> 'ok'). --spec(clear_permissions/2 :: (rabbit_types:username(), rabbit_types:vhost()) - -> 'ok'). --spec(list_permissions/0 :: - () -> [{rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()}]). --spec(list_vhost_permissions/1 :: - (rabbit_types:vhost()) -> [{rabbit_types:username(), - regexp(), regexp(), regexp()}]). --spec(list_user_permissions/1 :: - (rabbit_types:username()) -> [{rabbit_types:vhost(), - regexp(), regexp(), regexp()}]). --spec(list_user_vhost_permissions/2 :: - (rabbit_types:username(), rabbit_types:vhost()) - -> [{regexp(), regexp(), regexp()}]). - --endif. - -%%---------------------------------------------------------------------------- - -%% Implementation of rabbit_auth_backend - -description() -> - [{name, <<"Internal">>}, - {description, <<"Internal user / password database">>}]. - -check_user_login(Username, []) -> - internal_check_user_login(Username, fun(_) -> true end); -check_user_login(Username, [{password, Password}]) -> - internal_check_user_login( - Username, - fun(#internal_user{password_hash = Hash}) -> - check_password(Password, Hash) - end); -check_user_login(Username, AuthProps) -> - exit({unknown_auth_props, Username, AuthProps}). - -internal_check_user_login(Username, Fun) -> - Refused = {refused, "user '~s' - invalid credentials", [Username]}, - case lookup_user(Username) of - {ok, User = #internal_user{is_admin = IsAdmin}} -> - case Fun(User) of - true -> {ok, #user{username = Username, - is_admin = IsAdmin, - auth_backend = ?MODULE, - impl = User}}; - _ -> Refused - end; - {error, not_found} -> - Refused - end. - -check_vhost_access(#user{is_admin = true}, _VHostPath, read) -> - true; - -check_vhost_access(#user{username = Username}, VHostPath, _) -> - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> false; - [_R] -> true - end - end). - -check_resource_access(#user{username = Username}, - #resource{virtual_host = VHostPath, name = Name}, - Permission) -> - case mnesia:dirty_read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> - false; - [#user_permission{permission = P}] -> - PermRegexp = - case element(permission_index(Permission), P) of - %% <<"^$">> breaks Emacs' erlang mode - <<"">> -> <<$^, $$>>; - RE -> RE - end, - case re:run(Name, PermRegexp, [{capture, none}]) of - match -> true; - nomatch -> false - end - end. - -permission_index(configure) -> #permission.configure; -permission_index(write) -> #permission.write; -permission_index(read) -> #permission.read. - -%%---------------------------------------------------------------------------- -%% Manipulation of the user database - -add_user(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_user, Username}) of - [] -> - ok = mnesia:write( - rabbit_user, - #internal_user{username = Username, - password_hash = - hash_password(Password), - is_admin = false}, - write); - _ -> - mnesia:abort({user_already_exists, Username}) - end - end), - rabbit_log:info("Created user ~p~n", [Username]), - R. - -delete_user(Username) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:delete({rabbit_user, Username}), - [ok = mnesia:delete_object( - rabbit_user_permission, R, write) || - R <- mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = '_'}, - permission = '_'}, - write)], - ok - end)), - rabbit_log:info("Deleted user ~p~n", [Username]), - R. - -change_password(Username, Password) -> - change_password_hash(Username, hash_password(Password)). - -clear_password(Username) -> - change_password_hash(Username, <<"">>). - -change_password_hash(Username, PasswordHash) -> - R = update_user(Username, fun(User) -> - User#internal_user{ - password_hash = PasswordHash } - end), - rabbit_log:info("Changed password for user ~p~n", [Username]), - R. - -hash_password(Cleartext) -> - Salt = make_salt(), - Hash = salted_md5(Salt, Cleartext), - <>. - -check_password(Cleartext, <>) -> - Hash =:= salted_md5(Salt, Cleartext). - -make_salt() -> - {A1,A2,A3} = now(), - random:seed(A1, A2, A3), - Salt = random:uniform(16#ffffffff), - <>. - -salted_md5(Salt, Cleartext) -> - Salted = <>, - erlang:md5(Salted). - -set_admin(Username) -> - set_admin(Username, true). - -clear_admin(Username) -> - set_admin(Username, false). - -set_admin(Username, IsAdmin) -> - R = update_user(Username, fun(User) -> - User#internal_user{is_admin = IsAdmin} - end), - rabbit_log:info("Set user admin flag for user ~p to ~p~n", - [Username, IsAdmin]), - R. - -update_user(Username, Fun) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - {ok, User} = lookup_user(Username), - ok = mnesia:write(rabbit_user, Fun(User), write) - end)). - -list_users() -> - [{Username, IsAdmin} || - #internal_user{username = Username, is_admin = IsAdmin} <- - mnesia:dirty_match_object(rabbit_user, #internal_user{_ = '_'})]. - -lookup_user(Username) -> - rabbit_misc:dirty_read({rabbit_user, Username}). - -validate_regexp(RegexpBin) -> - Regexp = binary_to_list(RegexpBin), - case re:compile(Regexp) of - {ok, _} -> ok; - {error, Reason} -> throw({error, {invalid_regexp, Regexp, Reason}}) - end. - -set_permissions(Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm) -> - lists:map(fun validate_regexp/1, [ConfigurePerm, WritePerm, ReadPerm]), - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> ok = mnesia:write( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}}, - write) - end)). - - -clear_permissions(Username, VHostPath) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> - ok = mnesia:delete({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) - end)). - -list_permissions() -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(match_user_vhost('_', '_'))]. - -list_vhost_permissions(VHostPath) -> - [{Username, ConfigurePerm, WritePerm, ReadPerm} || - {Username, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_vhost:with( - VHostPath, match_user_vhost('_', VHostPath)))]. - -list_user_permissions(Username) -> - [{VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {_, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user( - Username, match_user_vhost(Username, '_')))]. - -list_user_vhost_permissions(Username, VHostPath) -> - [{ConfigurePerm, WritePerm, ReadPerm} || - {_, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user_and_vhost( - Username, VHostPath, - match_user_vhost(Username, VHostPath)))]. - -list_permissions(QueryThunk) -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - #user_permission{user_vhost = #user_vhost{username = Username, - virtual_host = VHostPath}, - permission = #permission{ configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}} <- - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction(QueryThunk)]. - -match_user_vhost(Username, VHostPath) -> - fun () -> mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = '_'}, - read) - end. diff --git a/src/rabbit_auth_mechanism.erl b/src/rabbit_auth_mechanism.erl deleted file mode 100644 index 897199ee..00000000 --- a/src/rabbit_auth_mechanism.erl +++ /dev/null @@ -1,46 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description. - {description, 0}, - - %% If this mechanism is enabled, should it be offered for a given socket? - %% (primarily so EXTERNAL can be SSL-only) - {should_offer, 1}, - - %% Called before authentication starts. Should create a state - %% object to be passed through all the stages of authentication. - {init, 1}, - - %% Handle a stage of authentication. Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {challenge, Challenge, NextState} - %% Another round is needed. Here's the state I want next time. - %% {protocol_error, Msg, Args} - %% Client got the protocol wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {handle_response, 2} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_mechanism_amqplain.erl b/src/rabbit_auth_mechanism_amqplain.erl deleted file mode 100644 index 2168495d..00000000 --- a/src/rabbit_auth_mechanism_amqplain.erl +++ /dev/null @@ -1,58 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_amqplain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism amqplain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"AMQPLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% AMQPLAIN, as used by Qpid Python test suite. The 0-8 spec actually -%% defines this as PLAIN, but in 0-9 that definition is gone, instead -%% referring generically to "SASL security mechanism", i.e. the above. - -description() -> - [{name, <<"AMQPLAIN">>}, - {description, <<"QPid AMQPLAIN mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - LoginTable = rabbit_binary_parser:parse_table(Response), - case {lists:keysearch(<<"LOGIN">>, 1, LoginTable), - lists:keysearch(<<"PASSWORD">>, 1, LoginTable)} of - {{value, {_, longstr, User}}, - {value, {_, longstr, Pass}}} -> - rabbit_access_control:check_user_pass_login(User, Pass); - _ -> - {protocol_error, - "AMQPLAIN auth info ~w is missing LOGIN or PASSWORD field", - [LoginTable]} - end. diff --git a/src/rabbit_auth_mechanism_cr_demo.erl b/src/rabbit_auth_mechanism_cr_demo.erl deleted file mode 100644 index 77aa34ea..00000000 --- a/src/rabbit_auth_mechanism_cr_demo.erl +++ /dev/null @@ -1,62 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_cr_demo). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism cr-demo"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"RABBIT-CR-DEMO">>, - ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --record(state, {username = undefined}). - -%% Provides equivalent security to PLAIN but demos use of Connection.Secure(Ok) -%% START-OK: Username -%% SECURE: "Please tell me your password" -%% SECURE-OK: "My password is ~s", [Password] - -description() -> - [{name, <<"RABBIT-CR-DEMO">>}, - {description, <<"RabbitMQ Demo challenge-response authentication " - "mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - #state{}. - -handle_response(Response, State = #state{username = undefined}) -> - {challenge, <<"Please tell me your password">>, - State#state{username = Response}}; - -handle_response(Response, #state{username = Username}) -> - case Response of - <<"My password is ", Password/binary>> -> - rabbit_access_control:check_user_pass_login(Username, Password); - _ -> - {protocol_error, "Invalid response '~s'", [Response]} - end. diff --git a/src/rabbit_auth_mechanism_plain.erl b/src/rabbit_auth_mechanism_plain.erl deleted file mode 100644 index e2f9bff9..00000000 --- a/src/rabbit_auth_mechanism_plain.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_plain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism plain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"PLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% SASL PLAIN, as used by the Qpid Java client and our clients. Also, -%% apparently, by OpenAMQ. - -%% TODO: once the minimum erlang becomes R13B03, reimplement this -%% using the binary module - that makes use of BIFs to do binary -%% matching and will thus be much faster. - -description() -> - [{name, <<"PLAIN">>}, - {description, <<"SASL PLAIN authentication mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - case extract_user_pass(Response) of - {ok, User, Pass} -> - rabbit_access_control:check_user_pass_login(User, Pass); - error -> - {protocol_error, "response ~p invalid", [Response]} - end. - -extract_user_pass(Response) -> - case extract_elem(Response) of - {ok, User, Response1} -> case extract_elem(Response1) of - {ok, Pass, <<>>} -> {ok, User, Pass}; - _ -> error - end; - error -> error - end. - -extract_elem(<<0:8, Rest/binary>>) -> - Count = next_null_pos(Rest), - <> = Rest, - {ok, Elem, Rest1}; -extract_elem(_) -> - error. - -next_null_pos(Bin) -> - next_null_pos(Bin, 0). - -next_null_pos(<<>>, Count) -> Count; -next_null_pos(<<0:8, _Rest/binary>>, Count) -> Count; -next_null_pos(<<_:8, Rest/binary>>, Count) -> next_null_pos(Rest, Count + 1). diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl deleted file mode 100644 index 6a21e10f..00000000 --- a/src/rabbit_backing_queue.erl +++ /dev/null @@ -1,128 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_backing_queue). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% Called on startup with a list of durable queue names. The - %% queues aren't being started at this point, but this call - %% allows the backing queue to perform any checking necessary for - %% the consistency of those queues, or initialise any other - %% shared resources. - {start, 1}, - - %% Called to tear down any state/resources. NB: Implementations - %% should not depend on this function being called on shutdown - %% and instead should hook into the rabbit supervision hierarchy. - {stop, 0}, - - %% Initialise the backing queue and its state. - {init, 3}, - - %% Called on queue shutdown when queue isn't being deleted. - {terminate, 1}, - - %% Called when the queue is terminating and needs to delete all - %% its content. - {delete_and_terminate, 1}, - - %% Remove all messages in the queue, but not messages which have - %% been fetched and are pending acks. - {purge, 1}, - - %% Publish a message. - {publish, 3}, - - %% Called for messages which have already been passed straight - %% out to a client. The queue will be empty for these calls - %% (i.e. saves the round trip through the backing queue). - {publish_delivered, 4}, - - %% Drop messages from the head of the queue while the supplied - %% predicate returns true. - {dropwhile, 2}, - - %% Produce the next message. - {fetch, 2}, - - %% Acktags supplied are for messages which can now be forgotten - %% about. Must return 1 guid per Ack, in the same order as Acks. - {ack, 2}, - - %% A publish, but in the context of a transaction. - {tx_publish, 4}, - - %% Acks, but in the context of a transaction. - {tx_ack, 3}, - - %% Undo anything which has been done in the context of the - %% specified transaction. - {tx_rollback, 2}, - - %% Commit a transaction. The Fun passed in must be called once - %% the messages have really been commited. This CPS permits the - %% possibility of commit coalescing. - {tx_commit, 4}, - - %% Reinsert messages into the queue which have already been - %% delivered and were pending acknowledgement. - {requeue, 3}, - - %% How long is my queue? - {len, 1}, - - %% Is my queue empty? - {is_empty, 1}, - - %% For the next three functions, the assumption is that you're - %% monitoring something like the ingress and egress rates of the - %% queue. The RAM duration is thus the length of time represented - %% by the messages held in RAM given the current rates. If you - %% want to ignore all of this stuff, then do so, and return 0 in - %% ram_duration/1. - - %% The target is to have no more messages in RAM than indicated - %% by the duration and the current queue rates. - {set_ram_duration_target, 2}, - - %% Optionally recalculate the duration internally (likely to be - %% just update your internal rates), and report how many seconds - %% the messages in RAM represent given the current rates of the - %% queue. - {ram_duration, 1}, - - %% Should 'idle_timeout' be called as soon as the queue process - %% can manage (either on an empty mailbox, or when a timer - %% fires)? - {needs_idle_timeout, 1}, - - %% Called (eventually) after needs_idle_timeout returns - %% 'true'. Note this may be called more than once for each 'true' - %% returned from needs_idle_timeout. - {idle_timeout, 1}, - - %% Called immediately before the queue hibernates. - {handle_pre_hibernate, 1}, - - %% Exists for debugging purposes, to be able to expose state via - %% rabbitmqctl list_queues backing_queue_status - {status, 1} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl deleted file mode 100644 index 57aad808..00000000 --- a/src/rabbit_basic.erl +++ /dev/null @@ -1,189 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_basic). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([publish/1, message/3, message/4, properties/1, delivery/5]). --export([publish/4, publish/7]). --export([build_content/2, from_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(properties_input() :: - (rabbit_framing:amqp_property_record() | [{atom(), any()}])). --type(publish_result() :: - ({ok, rabbit_router:routing_result(), [pid()]} - | rabbit_types:error('not_found'))). - --spec(publish/1 :: - (rabbit_types:delivery()) -> publish_result()). --spec(delivery/5 :: - (boolean(), boolean(), rabbit_types:maybe(rabbit_types:txn()), - rabbit_types:message(), undefined | integer()) -> - rabbit_types:delivery()). --spec(message/4 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - properties_input(), binary()) -> rabbit_types:message()). --spec(message/3 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - rabbit_types:decoded_content()) -> - rabbit_types:ok_or_error2(rabbit_types:message(), any())). --spec(properties/1 :: - (properties_input()) -> rabbit_framing:amqp_property_record()). --spec(publish/4 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - properties_input(), binary()) -> publish_result()). --spec(publish/7 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - boolean(), boolean(), rabbit_types:maybe(rabbit_types:txn()), - properties_input(), binary()) -> publish_result()). --spec(build_content/2 :: (rabbit_framing:amqp_property_record(), binary()) -> - rabbit_types:content()). --spec(from_content/1 :: (rabbit_types:content()) -> - {rabbit_framing:amqp_property_record(), binary()}). - --endif. - -%%---------------------------------------------------------------------------- - -publish(Delivery = #delivery{ - message = #basic_message{exchange_name = ExchangeName}}) -> - case rabbit_exchange:lookup(ExchangeName) of - {ok, X} -> - {RoutingRes, DeliveredQPids} = rabbit_exchange:publish(X, Delivery), - {ok, RoutingRes, DeliveredQPids}; - Other -> - Other - end. - -delivery(Mandatory, Immediate, Txn, Message, MsgSeqNo) -> - #delivery{mandatory = Mandatory, immediate = Immediate, txn = Txn, - sender = self(), message = Message, msg_seq_no = MsgSeqNo}. - -build_content(Properties, BodyBin) -> - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - #content{class_id = ClassId, - properties = Properties, - properties_bin = none, - protocol = none, - payload_fragments_rev = [BodyBin]}. - -from_content(Content) -> - #content{class_id = ClassId, - properties = Props, - payload_fragments_rev = FragmentsRev} = - rabbit_binary_parser:ensure_content_decoded(Content), - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - {Props, list_to_binary(lists:reverse(FragmentsRev))}. - -%% This breaks the spec rule forbidding message modification -strip_header(#content{properties = #'P_basic'{headers = undefined}} - = DecodedContent, _Key) -> - DecodedContent; -strip_header(#content{properties = Props = #'P_basic'{headers = Headers}} - = DecodedContent, Key) -> - case lists:keysearch(Key, 1, Headers) of - false -> DecodedContent; - {value, Found} -> Headers0 = lists:delete(Found, Headers), - rabbit_binary_generator:clear_encoded_content( - DecodedContent#content{ - properties = Props#'P_basic'{ - headers = Headers0}}) - end. - -message(ExchangeName, RoutingKey, - #content{properties = Props} = DecodedContent) -> - try - {ok, #basic_message{ - exchange_name = ExchangeName, - content = strip_header(DecodedContent, ?DELETED_HEADER), - guid = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent), - routing_keys = [RoutingKey | - header_routes(Props#'P_basic'.headers)]}} - catch - {error, _Reason} = Error -> Error - end. - -message(ExchangeName, RoutingKey, RawProperties, BodyBin) -> - Properties = properties(RawProperties), - Content = build_content(Properties, BodyBin), - {ok, Msg} = message(ExchangeName, RoutingKey, Content), - Msg. - -properties(P = #'P_basic'{}) -> - P; -properties(P) when is_list(P) -> - %% Yes, this is O(length(P) * record_info(size, 'P_basic') / 2), - %% i.e. slow. Use the definition of 'P_basic' directly if - %% possible! - lists:foldl(fun ({Key, Value}, Acc) -> - case indexof(record_info(fields, 'P_basic'), Key) of - 0 -> throw({unknown_basic_property, Key}); - N -> setelement(N + 1, Acc, Value) - end - end, #'P_basic'{}, P). - -indexof(L, Element) -> indexof(L, Element, 1). - -indexof([], _Element, _N) -> 0; -indexof([Element | _Rest], Element, N) -> N; -indexof([_ | Rest], Element, N) -> indexof(Rest, Element, N + 1). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(ExchangeName, RoutingKeyBin, Properties, BodyBin) -> - publish(ExchangeName, RoutingKeyBin, false, false, none, Properties, - BodyBin). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(ExchangeName, RoutingKeyBin, Mandatory, Immediate, Txn, Properties, - BodyBin) -> - publish(delivery(Mandatory, Immediate, Txn, - message(ExchangeName, RoutingKeyBin, - properties(Properties), BodyBin), - undefined)). - -is_message_persistent(#content{properties = #'P_basic'{ - delivery_mode = Mode}}) -> - case Mode of - 1 -> false; - 2 -> true; - undefined -> false; - Other -> throw({error, {delivery_mode_unknown, Other}}) - end. - -% Extract CC routes from headers -header_routes(undefined) -> - []; -header_routes(HeadersTable) -> - lists:append( - [case rabbit_misc:table_lookup(HeadersTable, HeaderKey) of - {array, Routes} -> [Route || {longstr, Route} <- Routes]; - undefined -> []; - {Type, _Val} -> throw({error, {unacceptable_type_in_header, - Type, - binary_to_list(HeaderKey)}}) - end || HeaderKey <- ?ROUTING_HEADERS]). diff --git a/src/rabbit_binary_generator.erl b/src/rabbit_binary_generator.erl deleted file mode 100644 index dc81ace6..00000000 --- a/src/rabbit_binary_generator.erl +++ /dev/null @@ -1,336 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_generator). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - -% EMPTY_CONTENT_BODY_FRAME_SIZE, 8 = 1 + 2 + 4 + 1 -% - 1 byte of frame type -% - 2 bytes of channel number -% - 4 bytes of frame payload length -% - 1 byte of payload trailer FRAME_END byte -% See definition of check_empty_content_body_frame_size/0, an assertion called at startup. --define(EMPTY_CONTENT_BODY_FRAME_SIZE, 8). - --export([build_simple_method_frame/3, - build_simple_content_frames/4, - build_heartbeat_frame/0]). --export([generate_table/1, encode_properties/2]). --export([check_empty_content_body_frame_size/0]). --export([ensure_content_encoded/2, clear_encoded_content/1]). --export([map_exception/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame() :: [binary()]). - --spec(build_simple_method_frame/3 :: - (rabbit_channel:channel_number(), rabbit_framing:amqp_method_record(), - rabbit_types:protocol()) - -> frame()). --spec(build_simple_content_frames/4 :: - (rabbit_channel:channel_number(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> [frame()]). --spec(build_heartbeat_frame/0 :: () -> frame()). --spec(generate_table/1 :: (rabbit_framing:amqp_table()) -> binary()). --spec(encode_properties/2 :: - ([rabbit_framing:amqp_property_type()], [any()]) -> binary()). --spec(check_empty_content_body_frame_size/0 :: () -> 'ok'). --spec(ensure_content_encoded/2 :: - (rabbit_types:content(), rabbit_types:protocol()) -> - rabbit_types:encoded_content()). --spec(clear_encoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:unencoded_content()). --spec(map_exception/3 :: (rabbit_channel:channel_number(), - rabbit_types:amqp_error() | any(), - rabbit_types:protocol()) -> - {rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record()}). - --endif. - -%%---------------------------------------------------------------------------- - -build_simple_method_frame(ChannelInt, MethodRecord, Protocol) -> - MethodFields = Protocol:encode_method_fields(MethodRecord), - MethodName = rabbit_misc:method_record_type(MethodRecord), - {ClassId, MethodId} = Protocol:method_id(MethodName), - create_frame(1, ChannelInt, [<>, MethodFields]). - -build_simple_content_frames(ChannelInt, Content, FrameMax, Protocol) -> - #content{class_id = ClassId, - properties_bin = ContentPropertiesBin, - payload_fragments_rev = PayloadFragmentsRev} = - ensure_content_encoded(Content, Protocol), - {BodySize, ContentFrames} = - build_content_frames(PayloadFragmentsRev, FrameMax, ChannelInt), - HeaderFrame = create_frame(2, ChannelInt, - [<>, - ContentPropertiesBin]), - [HeaderFrame | ContentFrames]. - -build_content_frames(FragsRev, FrameMax, ChannelInt) -> - BodyPayloadMax = if FrameMax == 0 -> - iolist_size(FragsRev); - true -> - FrameMax - ?EMPTY_CONTENT_BODY_FRAME_SIZE - end, - build_content_frames(0, [], BodyPayloadMax, [], - lists:reverse(FragsRev), BodyPayloadMax, ChannelInt). - -build_content_frames(SizeAcc, FramesAcc, _FragSizeRem, [], - [], _BodyPayloadMax, _ChannelInt) -> - {SizeAcc, lists:reverse(FramesAcc)}; -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - Frags, BodyPayloadMax, ChannelInt) - when FragSizeRem == 0 orelse Frags == [] -> - Frame = create_frame(3, ChannelInt, lists:reverse(FragAcc)), - FrameSize = BodyPayloadMax - FragSizeRem, - build_content_frames(SizeAcc + FrameSize, [Frame | FramesAcc], - BodyPayloadMax, [], Frags, BodyPayloadMax, ChannelInt); -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - [Frag | Frags], BodyPayloadMax, ChannelInt) -> - Size = size(Frag), - {NewFragSizeRem, NewFragAcc, NewFrags} = - if Size == 0 -> {FragSizeRem, FragAcc, Frags}; - Size =< FragSizeRem -> {FragSizeRem - Size, [Frag | FragAcc], Frags}; - true -> <> = - Frag, - {0, [Head | FragAcc], [Tail | Frags]} - end, - build_content_frames(SizeAcc, FramesAcc, NewFragSizeRem, NewFragAcc, - NewFrags, BodyPayloadMax, ChannelInt). - -build_heartbeat_frame() -> - create_frame(?FRAME_HEARTBEAT, 0, <<>>). - -create_frame(TypeInt, ChannelInt, PayloadBin) when is_binary(PayloadBin) -> - [<>, PayloadBin, <>]; -create_frame(TypeInt, ChannelInt, Payload) -> - create_frame(TypeInt, ChannelInt, list_to_binary(Payload)). - -%% table_field_to_binary supports the AMQP 0-8/0-9 standard types, S, -%% I, D, T and F, as well as the QPid extensions b, d, f, l, s, t, x, -%% and V. - -table_field_to_binary({FName, Type, Value}) -> - [short_string_to_binary(FName) | field_value_to_binary(Type, Value)]. - -field_value_to_binary(longstr, Value) -> - ["S", long_string_to_binary(Value)]; - -field_value_to_binary(signedint, Value) -> - ["I", <>]; - -field_value_to_binary(decimal, {Before, After}) -> - ["D", Before, <>]; - -field_value_to_binary(timestamp, Value) -> - ["T", <>]; - -field_value_to_binary(table, Value) -> - ["F", table_to_binary(Value)]; - -field_value_to_binary(array, Value) -> - ["A", array_to_binary(Value)]; - -field_value_to_binary(byte, Value) -> - ["b", <>]; - -field_value_to_binary(double, Value) -> - ["d", <>]; - -field_value_to_binary(float, Value) -> - ["f", <>]; - -field_value_to_binary(long, Value) -> - ["l", <>]; - -field_value_to_binary(short, Value) -> - ["s", <>]; - -field_value_to_binary(bool, Value) -> - ["t", if Value -> 1; true -> 0 end]; - -field_value_to_binary(binary, Value) -> - ["x", long_string_to_binary(Value)]; - -field_value_to_binary(void, _Value) -> - ["V"]. - -table_to_binary(Table) when is_list(Table) -> - BinTable = generate_table(Table), - [<<(size(BinTable)):32>>, BinTable]. - -array_to_binary(Array) when is_list(Array) -> - BinArray = generate_array(Array), - [<<(size(BinArray)):32>>, BinArray]. - -generate_table(Table) when is_list(Table) -> - list_to_binary(lists:map(fun table_field_to_binary/1, Table)). - -generate_array(Array) when is_list(Array) -> - list_to_binary(lists:map( - fun ({Type, Value}) -> field_value_to_binary(Type, Value) end, - Array)). - -short_string_to_binary(String) when is_binary(String) -> - Len = size(String), - if Len < 256 -> [<<(size(String)):8>>, String]; - true -> exit(content_properties_shortstr_overflow) - end; -short_string_to_binary(String) -> - StringLength = length(String), - if StringLength < 256 -> [<>, String]; - true -> exit(content_properties_shortstr_overflow) - end. - -long_string_to_binary(String) when is_binary(String) -> - [<<(size(String)):32>>, String]; -long_string_to_binary(String) -> - [<<(length(String)):32>>, String]. - -encode_properties([], []) -> - <<0, 0>>; -encode_properties(TypeList, ValueList) -> - encode_properties(0, TypeList, ValueList, 0, [], []). - -encode_properties(_Bit, [], [], FirstShortAcc, FlagsAcc, PropsAcc) -> - list_to_binary([lists:reverse(FlagsAcc), <>, lists:reverse(PropsAcc)]); -encode_properties(_Bit, [], _ValueList, _FirstShortAcc, _FlagsAcc, _PropsAcc) -> - exit(content_properties_values_overflow); -encode_properties(15, TypeList, ValueList, FirstShortAcc, FlagsAcc, PropsAcc) -> - NewFlagsShort = FirstShortAcc bor 1, % set the continuation low bit - encode_properties(0, TypeList, ValueList, 0, [<> | FlagsAcc], PropsAcc); -encode_properties(Bit, [bit | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - true -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), FlagsAcc, PropsAcc); - false -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - Other -> exit({content_properties_illegal_bit_value, Other}) - end; -encode_properties(Bit, [T | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - undefined -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - _ -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), - FlagsAcc, - [encode_property(T, Value) | PropsAcc]) - end. - -encode_property(shortstr, String) -> - Len = size(String), - if Len < 256 -> <>; - true -> exit(content_properties_shortstr_overflow) - end; -encode_property(longstr, String) -> - Len = size(String), <>; -encode_property(octet, Int) -> - <>; -encode_property(shortint, Int) -> - <>; -encode_property(longint, Int) -> - <>; -encode_property(longlongint, Int) -> - <>; -encode_property(timestamp, Int) -> - <>; -encode_property(table, Table) -> - table_to_binary(Table). - -check_empty_content_body_frame_size() -> - %% Intended to ensure that EMPTY_CONTENT_BODY_FRAME_SIZE is - %% defined correctly. - ComputedSize = size(list_to_binary(create_frame(?FRAME_BODY, 0, <<>>))), - if ComputedSize == ?EMPTY_CONTENT_BODY_FRAME_SIZE -> - ok; - true -> - exit({incorrect_empty_content_body_frame_size, - ComputedSize, ?EMPTY_CONTENT_BODY_FRAME_SIZE}) - end. - -ensure_content_encoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}, Protocol) - when PropBin =/= none -> - Content; -ensure_content_encoded(Content = #content{properties = none, - properties_bin = PropBin, - protocol = Protocol}, Protocol1) - when PropBin =/= none -> - Props = Protocol:decode_properties(Content#content.class_id, PropBin), - Content#content{properties = Props, - properties_bin = Protocol1:encode_properties(Props), - protocol = Protocol1}; -ensure_content_encoded(Content = #content{properties = Props}, Protocol) - when Props =/= none -> - Content#content{properties_bin = Protocol:encode_properties(Props), - protocol = Protocol}. - -clear_encoded_content(Content = #content{properties_bin = none, - protocol = none}) -> - Content; -clear_encoded_content(Content = #content{properties = none}) -> - %% Only clear when we can rebuild the properties_bin later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_encoded_content(Content = #content{}) -> - Content#content{properties_bin = none, protocol = none}. - -%% NB: this function is also used by the Erlang client -map_exception(Channel, Reason, Protocol) -> - {SuggestedClose, ReplyCode, ReplyText, FailedMethod} = - lookup_amqp_exception(Reason, Protocol), - {ClassId, MethodId} = case FailedMethod of - {_, _} -> FailedMethod; - none -> {0, 0}; - _ -> Protocol:method_id(FailedMethod) - end, - case SuggestedClose orelse (Channel == 0) of - true -> {0, #'connection.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}}; - false -> {Channel, #'channel.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}} - end. - -lookup_amqp_exception(#amqp_error{name = Name, - explanation = Expl, - method = Method}, - Protocol) -> - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(Name), - ExplBin = amqp_exception_explanation(Text, Expl), - {ShouldClose, Code, ExplBin, Method}; -lookup_amqp_exception(Other, Protocol) -> - rabbit_log:warning("Non-AMQP exit reason '~p'~n", [Other]), - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(internal_error), - {ShouldClose, Code, Text, none}. - -amqp_exception_explanation(Text, Expl) -> - ExplBin = list_to_binary(Expl), - CompleteTextBin = <>, - if size(CompleteTextBin) > 255 -> <>; - true -> CompleteTextBin - end. diff --git a/src/rabbit_binary_parser.erl b/src/rabbit_binary_parser.erl deleted file mode 100644 index 88026bab..00000000 --- a/src/rabbit_binary_parser.erl +++ /dev/null @@ -1,165 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_parser). - --include("rabbit.hrl"). - --export([parse_table/1, parse_properties/2]). --export([ensure_content_decoded/1, clear_decoded_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(parse_table/1 :: (binary()) -> rabbit_framing:amqp_table()). --spec(parse_properties/2 :: - ([rabbit_framing:amqp_property_type()], binary()) -> [any()]). --spec(ensure_content_decoded/1 :: - (rabbit_types:content()) -> rabbit_types:decoded_content()). --spec(clear_decoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:undecoded_content()). - --endif. - -%%---------------------------------------------------------------------------- - -%% parse_table supports the AMQP 0-8/0-9 standard types, S, I, D, T -%% and F, as well as the QPid extensions b, d, f, l, s, t, x, and V. - -parse_table(<<>>) -> - []; -parse_table(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{NameString, Type, Value} | parse_table(Rest)]. - -parse_array(<<>>) -> - []; -parse_array(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{Type, Value} | parse_array(Rest)]. - -parse_field_value(<<"S", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {longstr, ValueString, Rest}; - -parse_field_value(<<"I", Value:32/signed, Rest/binary>>) -> - {signedint, Value, Rest}; - -parse_field_value(<<"D", Before:8/unsigned, After:32/unsigned, Rest/binary>>) -> - {decimal, {Before, After}, Rest}; - -parse_field_value(<<"T", Value:64/unsigned, Rest/binary>>) -> - {timestamp, Value, Rest}; - -parse_field_value(<<"F", VLen:32/unsigned, Table:VLen/binary, Rest/binary>>) -> - {table, parse_table(Table), Rest}; - -parse_field_value(<<"A", VLen:32/unsigned, Array:VLen/binary, Rest/binary>>) -> - {array, parse_array(Array), Rest}; - -parse_field_value(<<"b", Value:8/unsigned, Rest/binary>>) -> - {byte, Value, Rest}; - -parse_field_value(<<"d", Value:64/float, Rest/binary>>) -> - {double, Value, Rest}; - -parse_field_value(<<"f", Value:32/float, Rest/binary>>) -> - {float, Value, Rest}; - -parse_field_value(<<"l", Value:64/signed, Rest/binary>>) -> - {long, Value, Rest}; - -parse_field_value(<<"s", Value:16/signed, Rest/binary>>) -> - {short, Value, Rest}; - -parse_field_value(<<"t", Value:8/unsigned, Rest/binary>>) -> - {bool, (Value /= 0), Rest}; - -parse_field_value(<<"x", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {binary, ValueString, Rest}; - -parse_field_value(<<"V", Rest/binary>>) -> - {void, undefined, Rest}. - - -parse_properties([], _PropBin) -> - []; -parse_properties(TypeList, PropBin) -> - FlagCount = length(TypeList), - %% round up to the nearest multiple of 15 bits, since the 16th bit - %% in each short is a "continuation" bit. - FlagsLengthBytes = trunc((FlagCount + 14) / 15) * 2, - <> = PropBin, - <> = Flags, - parse_properties(0, TypeList, [], FirstShort, Remainder, Properties). - -parse_properties(_Bit, [], Acc, _FirstShort, - _Remainder, <<>>) -> - lists:reverse(Acc); -parse_properties(_Bit, [], _Acc, _FirstShort, - _Remainder, _LeftoverBin) -> - exit(content_properties_binary_overflow); -parse_properties(15, TypeList, Acc, _OldFirstShort, - <>, Properties) -> - parse_properties(0, TypeList, Acc, NewFirstShort, Remainder, Properties); -parse_properties(Bit, [Type | TypeListRest], Acc, FirstShort, - Remainder, Properties) -> - {Value, Rest} = - if (FirstShort band (1 bsl (15 - Bit))) /= 0 -> - parse_property(Type, Properties); - Type == bit -> {false , Properties}; - true -> {undefined, Properties} - end, - parse_properties(Bit + 1, TypeListRest, [Value | Acc], FirstShort, - Remainder, Rest). - -parse_property(shortstr, <>) -> - {String, Rest}; -parse_property(longstr, <>) -> - {String, Rest}; -parse_property(octet, <>) -> - {Int, Rest}; -parse_property(shortint, <>) -> - {Int, Rest}; -parse_property(longint, <>) -> - {Int, Rest}; -parse_property(longlongint, <>) -> - {Int, Rest}; -parse_property(timestamp, <>) -> - {Int, Rest}; -parse_property(bit, Rest) -> - {true, Rest}; -parse_property(table, <>) -> - {parse_table(Table), Rest}. - -ensure_content_decoded(Content = #content{properties = Props}) - when Props =/= none -> - Content; -ensure_content_decoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}) - when PropBin =/= none -> - Content#content{properties = Protocol:decode_properties( - Content#content.class_id, PropBin)}. - -clear_decoded_content(Content = #content{properties = none}) -> - Content; -clear_decoded_content(Content = #content{properties_bin = none}) -> - %% Only clear when we can rebuild the properties later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_decoded_content(Content = #content{}) -> - Content#content{properties = none}. diff --git a/src/rabbit_binding.erl b/src/rabbit_binding.erl deleted file mode 100644 index 96a22dca..00000000 --- a/src/rabbit_binding.erl +++ /dev/null @@ -1,422 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binding). --include("rabbit.hrl"). - --export([recover/0, exists/1, add/1, remove/1, add/2, remove/2, list/1]). --export([list_for_source/1, list_for_destination/1, - list_for_source_and_destination/2]). --export([new_deletions/0, combine_deletions/2, add_deletion/3, - process_deletions/2]). --export([info_keys/0, info/1, info/2, info_all/1, info_all/2]). -%% these must all be run inside a mnesia tx --export([has_for_source/1, remove_for_source/1, - remove_for_destination/1, remove_transient_for_destination/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([key/0, deletions/0]). - --type(key() :: binary()). - --type(bind_errors() :: rabbit_types:error('source_not_found' | - 'destination_not_found' | - 'source_and_destination_not_found')). --type(bind_res() :: 'ok' | bind_errors()). --type(inner_fun() :: - fun((rabbit_types:exchange(), - rabbit_types:exchange() | rabbit_types:amqqueue()) -> - rabbit_types:ok_or_error(rabbit_types:amqp_error()))). --type(bindings() :: [rabbit_types:binding()]). --type(add_res() :: bind_res() | rabbit_misc:const(bind_res())). --type(bind_or_error() :: bind_res() | rabbit_types:error('binding_not_found')). --type(remove_res() :: bind_or_error() | rabbit_misc:const(bind_or_error())). - --opaque(deletions() :: dict()). - --spec(recover/0 :: () -> [rabbit_types:binding()]). --spec(exists/1 :: (rabbit_types:binding()) -> boolean() | bind_errors()). --spec(add/1 :: (rabbit_types:binding()) -> add_res()). --spec(remove/1 :: (rabbit_types:binding()) -> remove_res()). --spec(add/2 :: (rabbit_types:binding(), inner_fun()) -> add_res()). --spec(remove/2 :: (rabbit_types:binding(), inner_fun()) -> remove_res()). --spec(list/1 :: (rabbit_types:vhost()) -> bindings()). --spec(list_for_source/1 :: - (rabbit_types:binding_source()) -> bindings()). --spec(list_for_destination/1 :: - (rabbit_types:binding_destination()) -> bindings()). --spec(list_for_source_and_destination/2 :: - (rabbit_types:binding_source(), rabbit_types:binding_destination()) -> - bindings()). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:binding()) -> rabbit_types:infos()). --spec(info/2 :: (rabbit_types:binding(), rabbit_types:info_keys()) -> - rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(has_for_source/1 :: (rabbit_types:binding_source()) -> boolean()). --spec(remove_for_source/1 :: (rabbit_types:binding_source()) -> bindings()). --spec(remove_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(remove_transient_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(process_deletions/2 :: (deletions(), boolean()) -> 'ok'). --spec(combine_deletions/2 :: (deletions(), deletions()) -> deletions()). --spec(add_deletion/3 :: (rabbit_exchange:name(), - {'undefined' | rabbit_types:exchange(), - 'deleted' | 'not_deleted', - bindings()}, deletions()) -> deletions()). --spec(new_deletions/0 :: () -> deletions()). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]). - -recover() -> - rabbit_misc:table_fold( - fun (Route = #route{binding = B}, Acc) -> - {_, ReverseRoute} = route_with_reverse(Route), - ok = mnesia:write(rabbit_route, Route, write), - ok = mnesia:write(rabbit_reverse_route, ReverseRoute, write), - [B | Acc] - end, [], rabbit_durable_route). - -exists(Binding) -> - binding_action( - Binding, fun (_Src, _Dst, B) -> - rabbit_misc:const(mnesia:read({rabbit_route, B}) /= []) - end). - -add(Binding) -> add(Binding, fun (_Src, _Dst) -> ok end). - -remove(Binding) -> remove(Binding, fun (_Src, _Dst) -> ok end). - -add(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - %% this argument is used to check queue exclusivity; - %% in general, we want to fail on that in preference to - %% anything else - case InnerFun(Src, Dst) of - ok -> - case mnesia:read({rabbit_route, B}) of - [] -> ok = sync_binding(B, all_durable([Src, Dst]), - fun mnesia:write/3), - fun (Tx) -> - ok = rabbit_exchange:callback( - Src, add_binding, [Tx, Src, B]), - rabbit_event:notify_if( - not Tx, binding_created, info(B)) - end; - [_] -> fun rabbit_misc:const_ok/1 - end; - {error, _} = Err -> - rabbit_misc:const(Err) - end - end). - -remove(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - Result = - case mnesia:match_object(rabbit_route, #route{binding = B}, - write) of - [] -> - {error, binding_not_found}; - [_] -> - case InnerFun(Src, Dst) of - ok -> - ok = sync_binding(B, all_durable([Src, Dst]), - fun mnesia:delete_object/3), - {ok, maybe_auto_delete(B#binding.source, - [B], new_deletions())}; - {error, _} = E -> - E - end - end, - case Result of - {error, _} = Err -> - rabbit_misc:const(Err); - {ok, Deletions} -> - fun (Tx) -> ok = process_deletions(Deletions, Tx) end - end - end). - -list(VHostPath) -> - VHostResource = rabbit_misc:r(VHostPath, '_'), - Route = #route{binding = #binding{source = VHostResource, - destination = VHostResource, - _ = '_'}, - _ = '_'}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_source(SrcName) -> - Route = #route{binding = #binding{source = SrcName, _ = '_'}}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_destination(DstName) -> - Route = #route{binding = #binding{destination = DstName, _ = '_'}}, - [reverse_binding(B) || #reverse_route{reverse_binding = B} <- - mnesia:dirty_match_object(rabbit_reverse_route, - reverse_route(Route))]. - -list_for_source_and_destination(SrcName, DstName) -> - Route = #route{binding = #binding{source = SrcName, - destination = DstName, - _ = '_'}}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, B) -> [{Item, i(Item, B)} || Item <- Items]. - -i(source_name, #binding{source = SrcName}) -> SrcName#resource.name; -i(source_kind, #binding{source = SrcName}) -> SrcName#resource.kind; -i(destination_name, #binding{destination = DstName}) -> DstName#resource.name; -i(destination_kind, #binding{destination = DstName}) -> DstName#resource.kind; -i(routing_key, #binding{key = RoutingKey}) -> RoutingKey; -i(arguments, #binding{args = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(B = #binding{}) -> infos(?INFO_KEYS, B). - -info(B = #binding{}, Items) -> infos(Items, B). - -info_all(VHostPath) -> map(VHostPath, fun (B) -> info(B) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (B) -> info(B, Items) end). - -has_for_source(SrcName) -> - Match = #route{binding = #binding{source = SrcName, _ = '_'}}, - %% we need to check for durable routes here too in case a bunch of - %% routes to durable queues have been removed temporarily as a - %% result of a node failure - contains(rabbit_route, Match) orelse contains(rabbit_durable_route, Match). - -remove_for_source(SrcName) -> - [begin - ok = mnesia:delete_object(rabbit_reverse_route, - reverse_route(Route), write), - ok = delete_forward_routes(Route), - Route#route.binding - end || Route <- mnesia:match_object( - rabbit_route, - #route{binding = #binding{source = SrcName, - _ = '_'}}, - write)]. - -remove_for_destination(DstName) -> - remove_for_destination(DstName, fun delete_forward_routes/1). - -remove_transient_for_destination(DstName) -> - remove_for_destination(DstName, fun delete_transient_forward_routes/1). - -%%---------------------------------------------------------------------------- - -all_durable(Resources) -> - lists:all(fun (#exchange{durable = D}) -> D; - (#amqqueue{durable = D}) -> D - end, Resources). - -binding_action(Binding = #binding{source = SrcName, - destination = DstName, - args = Arguments}, Fun) -> - call_with_source_and_destination( - SrcName, DstName, - fun (Src, Dst) -> - SortedArgs = rabbit_misc:sort_field_table(Arguments), - Fun(Src, Dst, Binding#binding{args = SortedArgs}) - end). - -sync_binding(Binding, Durable, Fun) -> - ok = case Durable of - true -> Fun(rabbit_durable_route, - #route{binding = Binding}, write); - false -> ok - end, - {Route, ReverseRoute} = route_with_reverse(Binding), - ok = Fun(rabbit_route, Route, write), - ok = Fun(rabbit_reverse_route, ReverseRoute, write), - ok. - -call_with_source_and_destination(SrcName, DstName, Fun) -> - SrcTable = table_for_resource(SrcName), - DstTable = table_for_resource(DstName), - ErrFun = fun (Err) -> rabbit_misc:const(Err) end, - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case {mnesia:read({SrcTable, SrcName}), - mnesia:read({DstTable, DstName})} of - {[Src], [Dst]} -> Fun(Src, Dst); - {[], [_] } -> ErrFun({error, source_not_found}); - {[_], [] } -> ErrFun({error, destination_not_found}); - {[], [] } -> ErrFun({error, - source_and_destination_not_found}) - end - end). - -table_for_resource(#resource{kind = exchange}) -> rabbit_exchange; -table_for_resource(#resource{kind = queue}) -> rabbit_queue. - -contains(Table, MatchHead) -> - continue(mnesia:select(Table, [{MatchHead, [], ['$_']}], 1, read)). - -continue('$end_of_table') -> false; -continue({[_|_], _}) -> true; -continue({[], Continuation}) -> continue(mnesia:select(Continuation)). - -remove_for_destination(DstName, FwdDeleteFun) -> - Bindings = - [begin - Route = reverse_route(ReverseRoute), - ok = FwdDeleteFun(Route), - ok = mnesia:delete_object(rabbit_reverse_route, - ReverseRoute, write), - Route#route.binding - end || ReverseRoute - <- mnesia:match_object( - rabbit_reverse_route, - reverse_route(#route{ - binding = #binding{ - destination = DstName, - _ = '_'}}), - write)], - group_bindings_fold(fun maybe_auto_delete/3, new_deletions(), - lists:keysort(#binding.source, Bindings)). - -%% Requires that its input binding list is sorted in exchange-name -%% order, so that the grouping of bindings (for passing to -%% group_bindings_and_auto_delete1) works properly. -group_bindings_fold(_Fun, Acc, []) -> - Acc; -group_bindings_fold(Fun, Acc, [B = #binding{source = SrcName} | Bs]) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B]). - -group_bindings_fold( - Fun, SrcName, Acc, [B = #binding{source = SrcName} | Bs], Bindings) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B | Bindings]); -group_bindings_fold(Fun, SrcName, Acc, Removed, Bindings) -> - %% Either Removed is [], or its head has a non-matching SrcName. - group_bindings_fold(Fun, Fun(SrcName, Bindings, Acc), Removed). - -maybe_auto_delete(XName, Bindings, Deletions) -> - case mnesia:read({rabbit_exchange, XName}) of - [] -> - add_deletion(XName, {undefined, not_deleted, Bindings}, Deletions); - [X] -> - add_deletion(XName, {X, not_deleted, Bindings}, - case rabbit_exchange:maybe_auto_delete(X) of - not_deleted -> Deletions; - {deleted, Deletions1} -> combine_deletions( - Deletions, Deletions1) - end) - end. - -delete_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write), - ok = mnesia:delete_object(rabbit_durable_route, Route, write). - -delete_transient_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write). - -route_with_reverse(#route{binding = Binding}) -> - route_with_reverse(Binding); -route_with_reverse(Binding = #binding{}) -> - Route = #route{binding = Binding}, - {Route, reverse_route(Route)}. - -reverse_route(#route{binding = Binding}) -> - #reverse_route{reverse_binding = reverse_binding(Binding)}; - -reverse_route(#reverse_route{reverse_binding = Binding}) -> - #route{binding = reverse_binding(Binding)}. - -reverse_binding(#reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}; - -reverse_binding(#binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}. - -%% ---------------------------------------------------------------------------- -%% Binding / exchange deletion abstraction API -%% ---------------------------------------------------------------------------- - -anything_but( NotThis, NotThis, NotThis) -> NotThis; -anything_but( NotThis, NotThis, This) -> This; -anything_but( NotThis, This, NotThis) -> This; -anything_but(_NotThis, This, This) -> This. - -new_deletions() -> dict:new(). - -add_deletion(XName, Entry, Deletions) -> - dict:update(XName, fun (Entry1) -> merge_entry(Entry1, Entry) end, - Entry, Deletions). - -combine_deletions(Deletions1, Deletions2) -> - dict:merge(fun (_XName, Entry1, Entry2) -> merge_entry(Entry1, Entry2) end, - Deletions1, Deletions2). - -merge_entry({X1, Deleted1, Bindings1}, {X2, Deleted2, Bindings2}) -> - {anything_but(undefined, X1, X2), - anything_but(not_deleted, Deleted1, Deleted2), - [Bindings1 | Bindings2]}. - -process_deletions(Deletions, Tx) -> - dict:fold( - fun (_XName, {X, Deleted, Bindings}, ok) -> - FlatBindings = lists:flatten(Bindings), - [rabbit_event:notify_if(not Tx, binding_deleted, info(B)) || - B <- FlatBindings], - case Deleted of - not_deleted -> - rabbit_exchange:callback(X, remove_bindings, - [Tx, X, FlatBindings]); - deleted -> - rabbit_event:notify_if(not Tx, exchange_deleted, - [{name, X#exchange.name}]), - rabbit_exchange:callback(X, delete, [Tx, X, FlatBindings]) - end - end, ok, Deletions). diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl deleted file mode 100644 index e92421fc..00000000 --- a/src/rabbit_channel.erl +++ /dev/null @@ -1,1443 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/9, do/2, do/3, flush/1, shutdown/1]). --export([send_command/2, deliver/4, flushed/2, confirm/2]). --export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). --export([emit_stats/1, ready_for_close/1]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2]). - --record(ch, {state, protocol, channel, reader_pid, writer_pid, limiter_pid, - start_limiter_fun, transaction_id, tx_participants, next_tag, - uncommitted_ack_q, unacked_message_q, - user, virtual_host, most_recently_declared_queue, - consumer_mapping, blocking, queue_collector_pid, stats_timer, - confirm_enabled, publish_seqno, unconfirmed_mq, unconfirmed_qm, - confirmed, capabilities}). - --define(MAX_PERMISSION_CACHE_SIZE, 12). - --define(STATISTICS_KEYS, - [pid, - transactional, - confirm, - consumer_count, - messages_unacknowledged, - messages_unconfirmed, - acks_uncommitted, - prefetch_count, - client_flow_blocked]). - --define(CREATION_EVENT_KEYS, - [pid, - connection, - number, - user, - vhost]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([channel_number/0]). - --type(channel_number() :: non_neg_integer()). - --spec(start_link/9 :: - (channel_number(), pid(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid(), fun ((non_neg_integer()) -> rabbit_types:ok(pid()))) -> - rabbit_types:ok_pid_or_error()). --spec(do/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(do/3 :: (pid(), rabbit_framing:amqp_method_record(), - rabbit_types:maybe(rabbit_types:content())) -> 'ok'). --spec(flush/1 :: (pid()) -> 'ok'). --spec(shutdown/1 :: (pid()) -> 'ok'). --spec(send_command/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(deliver/4 :: - (pid(), rabbit_types:ctag(), boolean(), rabbit_amqqueue:qmsg()) - -> 'ok'). --spec(flushed/2 :: (pid(), pid()) -> 'ok'). --spec(confirm/2 ::(pid(), [non_neg_integer()]) -> 'ok'). --spec(list/0 :: () -> [pid()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(info_all/0 :: () -> [rabbit_types:infos()]). --spec(info_all/1 :: (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(ready_for_close/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Channel, ReaderPid, WriterPid, Protocol, User, VHost, Capabilities, - CollectorPid, StartLimiterFun) -> - gen_server2:start_link( - ?MODULE, [Channel, ReaderPid, WriterPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun], []). - -do(Pid, Method) -> - do(Pid, Method, none). - -do(Pid, Method, Content) -> - gen_server2:cast(Pid, {method, Method, Content}). - -flush(Pid) -> - gen_server2:call(Pid, flush, infinity). - -shutdown(Pid) -> - gen_server2:cast(Pid, terminate). - -send_command(Pid, Msg) -> - gen_server2:cast(Pid, {command, Msg}). - -deliver(Pid, ConsumerTag, AckRequired, Msg) -> - gen_server2:cast(Pid, {deliver, ConsumerTag, AckRequired, Msg}). - -flushed(Pid, QPid) -> - gen_server2:cast(Pid, {flushed, QPid}). - -confirm(Pid, MsgSeqNos) -> - gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). - -list() -> - pg_local:get_members(rabbit_channels). - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server2:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server2:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all() -> - rabbit_misc:filter_exit_map(fun (C) -> info(C) end, list()). - -info_all(Items) -> - rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). - -emit_stats(Pid) -> - gen_server2:cast(Pid, emit_stats). - -ready_for_close(Pid) -> - gen_server2:cast(Pid, ready_for_close). - -%%--------------------------------------------------------------------------- - -init([Channel, ReaderPid, WriterPid, Protocol, User, VHost, Capabilities, - CollectorPid, StartLimiterFun]) -> - process_flag(trap_exit, true), - ok = pg_local:join(rabbit_channels, self()), - StatsTimer = rabbit_event:init_stats_timer(), - State = #ch{state = starting, - protocol = Protocol, - channel = Channel, - reader_pid = ReaderPid, - writer_pid = WriterPid, - limiter_pid = undefined, - start_limiter_fun = StartLimiterFun, - transaction_id = none, - tx_participants = sets:new(), - next_tag = 1, - uncommitted_ack_q = queue:new(), - unacked_message_q = queue:new(), - user = User, - virtual_host = VHost, - most_recently_declared_queue = <<>>, - consumer_mapping = dict:new(), - blocking = dict:new(), - queue_collector_pid = CollectorPid, - stats_timer = StatsTimer, - confirm_enabled = false, - publish_seqno = 1, - unconfirmed_mq = gb_trees:empty(), - unconfirmed_qm = gb_trees:empty(), - confirmed = [], - capabilities = Capabilities}, - rabbit_event:notify(channel_created, infos(?CREATION_EVENT_KEYS, State)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State) end), - {ok, State, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - emit_stats -> 7; - {confirm, _MsgSeqNos, _QPid} -> 5; - _ -> 0 - end. - -handle_call(flush, _From, State) -> - reply(ok, State); - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(_Request, _From, State) -> - noreply(State). - -handle_cast({method, Method, Content}, State) -> - try handle_method(Method, Content, State) of - {reply, Reply, NewState} -> - ok = rabbit_writer:send_command(NewState#ch.writer_pid, Reply), - noreply(NewState); - {noreply, NewState} -> - noreply(NewState); - stop -> - {stop, normal, State} - catch - exit:Reason = #amqp_error{} -> - MethodName = rabbit_misc:method_record_type(Method), - send_exception(Reason#amqp_error{method = MethodName}, State); - _:Reason -> - {stop, {Reason, erlang:get_stacktrace()}, State} - end; - -handle_cast({flushed, QPid}, State) -> - {noreply, queue_blocked(QPid, State), hibernate}; - -handle_cast(ready_for_close, State = #ch{state = closing, - writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command_sync(WriterPid, #'channel.close_ok'{}), - {stop, normal, State}; - -handle_cast(terminate, State) -> - {stop, normal, State}; - -handle_cast({command, Msg}, State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(State); - -handle_cast({deliver, ConsumerTag, AckRequired, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}}}, - State = #ch{writer_pid = WriterPid, - next_tag = DeliveryTag}) -> - State1 = lock_message(AckRequired, - ack_record(DeliveryTag, ConsumerTag, Msg), - State), - - M = #'basic.deliver'{consumer_tag = ConsumerTag, - delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - rabbit_writer:send_command_and_notify(WriterPid, QPid, self(), M, Content), - - maybe_incr_stats([{QPid, 1}], - case AckRequired of - true -> deliver; - false -> deliver_no_ack - end, State), - noreply(State1#ch{next_tag = DeliveryTag + 1}); - -handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> - internal_emit_stats(State), - noreply([ensure_stats_timer], - State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}); - -handle_cast({confirm, MsgSeqNos, From}, State) -> - State1 = #ch{confirmed = C} = confirm(MsgSeqNos, From, State), - noreply([send_confirms], State1, case C of [] -> hibernate; _ -> 0 end). - -handle_info(timeout, State) -> - noreply(State); - -handle_info({'DOWN', _MRef, process, QPid, Reason}, - State = #ch{unconfirmed_qm = UQM}) -> - MsgSeqNos = case gb_trees:lookup(QPid, UQM) of - {value, MsgSet} -> gb_sets:to_list(MsgSet); - none -> [] - end, - %% We remove the MsgSeqNos from UQM before calling - %% process_confirms to prevent each MsgSeqNo being removed from - %% the set one by one which which would be inefficient - State1 = State#ch{unconfirmed_qm = gb_trees:delete_any(QPid, UQM)}, - {MXs, State2} = process_confirms(MsgSeqNos, QPid, State1), - erase_queue_stats(QPid), - State3 = (case Reason of - normal -> fun record_confirms/2; - _ -> fun send_nacks/2 - end)(MXs, State2), - noreply(queue_blocked(QPid, State3)). - -handle_pre_hibernate(State = #ch{stats_timer = StatsTimer}) -> - ok = clear_permission_cache(), - rabbit_event:if_enabled(StatsTimer, - fun () -> - internal_emit_stats( - State, [{idle_since, now()}]) - end), - StatsTimer1 = rabbit_event:stop_stats_timer(StatsTimer), - {hibernate, State#ch{stats_timer = StatsTimer1}}. - -terminate(Reason, State) -> - {Res, _State1} = rollback_and_notify(State), - case Reason of - normal -> ok = Res; - shutdown -> ok = Res; - {shutdown, _Term} -> ok = Res; - _ -> ok - end, - pg_local:leave(rabbit_channels, self()), - rabbit_event:notify(channel_closed, [{pid, self()}]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%--------------------------------------------------------------------------- - -reply(Reply, NewState) -> reply(Reply, [], NewState). - -reply(Reply, Mask, NewState) -> reply(Reply, Mask, NewState, hibernate). - -reply(Reply, Mask, NewState, Timeout) -> - {reply, Reply, next_state(Mask, NewState), Timeout}. - -noreply(NewState) -> noreply([], NewState). - -noreply(Mask, NewState) -> noreply(Mask, NewState, hibernate). - -noreply(Mask, NewState, Timeout) -> - {noreply, next_state(Mask, NewState), Timeout}. - -next_state(Mask, State) -> - lists:foldl(fun (ensure_stats_timer, State1) -> ensure_stats_timer(State1); - (send_confirms, State1) -> send_confirms(State1) - end, State, [ensure_stats_timer, send_confirms] -- Mask). - -ensure_stats_timer(State = #ch{stats_timer = StatsTimer}) -> - ChPid = self(), - State#ch{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(ChPid) end)}. - -return_ok(State, true, _Msg) -> {noreply, State}; -return_ok(State, false, Msg) -> {reply, Msg, State}. - -ok_msg(true, _Msg) -> undefined; -ok_msg(false, Msg) -> Msg. - -send_exception(Reason, State = #ch{protocol = Protocol, - channel = Channel, - writer_pid = WriterPid, - reader_pid = ReaderPid}) -> - {CloseChannel, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - rabbit_log:error("connection ~p, channel ~p - error:~n~p~n", - [ReaderPid, Channel, Reason]), - %% something bad's happened: rollback_and_notify may not be 'ok' - {_Result, State1} = rollback_and_notify(State), - case CloseChannel of - Channel -> ok = rabbit_writer:send_command(WriterPid, CloseMethod), - {noreply, State1}; - _ -> ReaderPid ! {channel_exit, Channel, Reason}, - {stop, normal, State1} - end. - -return_queue_declare_ok(#resource{name = ActualName}, - NoWait, MessageCount, ConsumerCount, State) -> - return_ok(State#ch{most_recently_declared_queue = ActualName}, NoWait, - #'queue.declare_ok'{queue = ActualName, - message_count = MessageCount, - consumer_count = ConsumerCount}). - -check_resource_access(User, Resource, Perm) -> - V = {Resource, Perm}, - Cache = case get(permission_cache) of - undefined -> []; - Other -> Other - end, - CacheTail = - case lists:member(V, Cache) of - true -> lists:delete(V, Cache); - false -> ok = rabbit_access_control:check_resource_access( - User, Resource, Perm), - lists:sublist(Cache, ?MAX_PERMISSION_CACHE_SIZE - 1) - end, - put(permission_cache, [V | CacheTail]), - ok. - -clear_permission_cache() -> - erase(permission_cache), - ok. - -check_configure_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, configure). - -check_write_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, write). - -check_read_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, read). - -check_user_id_header(#'P_basic'{user_id = undefined}, _) -> - ok; -check_user_id_header(#'P_basic'{user_id = Username}, - #ch{user = #user{username = Username}}) -> - ok; -check_user_id_header(#'P_basic'{user_id = Claimed}, - #ch{user = #user{username = Actual}}) -> - rabbit_misc:protocol_error( - precondition_failed, "user_id property set to '~s' but " - "authenticated user was '~s'", [Claimed, Actual]). - -check_internal_exchange(#exchange{name = Name, internal = true}) -> - rabbit_misc:protocol_error(access_refused, - "cannot publish to internal ~s", - [rabbit_misc:rs(Name)]); -check_internal_exchange(_) -> - ok. - -expand_queue_name_shortcut(<<>>, #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_queue_name_shortcut(<<>>, #ch{virtual_host = VHostPath, - most_recently_declared_queue = MRDQ}) -> - rabbit_misc:r(VHostPath, queue, MRDQ); -expand_queue_name_shortcut(QueueNameBin, #ch{virtual_host = VHostPath}) -> - rabbit_misc:r(VHostPath, queue, QueueNameBin). - -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = MRDQ}) -> - MRDQ; -expand_routing_key_shortcut(_QueueNameBin, RoutingKey, _State) -> - RoutingKey. - -expand_binding(queue, DestinationNameBin, RoutingKey, State) -> - {expand_queue_name_shortcut(DestinationNameBin, State), - expand_routing_key_shortcut(DestinationNameBin, RoutingKey, State)}; -expand_binding(exchange, DestinationNameBin, RoutingKey, State) -> - {rabbit_misc:r(State#ch.virtual_host, exchange, DestinationNameBin), - RoutingKey}. - -check_not_default_exchange(#resource{kind = exchange, name = <<"">>}) -> - rabbit_misc:protocol_error( - access_refused, "operation not permitted on the default exchange", []); -check_not_default_exchange(_) -> - ok. - -%% check that an exchange/queue name does not contain the reserved -%% "amq." prefix. -%% -%% One, quite reasonable, interpretation of the spec, taken by the -%% QPid M1 Java client, is that the exclusion of "amq." prefixed names -%% only applies on actual creation, and not in the cases where the -%% entity already exists. This is how we use this function in the code -%% below. However, AMQP JIRA 123 changes that in 0-10, and possibly -%% 0-9SP1, making it illegal to attempt to declare an exchange/queue -%% with an amq.* name when passive=false. So this will need -%% revisiting. -%% -%% TODO: enforce other constraints on name. See AMQP JIRA 69. -check_name(Kind, NameBin = <<"amq.", _/binary>>) -> - rabbit_misc:protocol_error( - access_refused, - "~s name '~s' contains reserved prefix 'amq.*'",[Kind, NameBin]); -check_name(_Kind, NameBin) -> - NameBin. - -queue_blocked(QPid, State = #ch{blocking = Blocking}) -> - case dict:find(QPid, Blocking) of - error -> State; - {ok, MRef} -> true = erlang:demonitor(MRef), - Blocking1 = dict:erase(QPid, Blocking), - ok = case dict:size(Blocking1) of - 0 -> rabbit_writer:send_command( - State#ch.writer_pid, - #'channel.flow_ok'{active = false}); - _ -> ok - end, - State#ch{blocking = Blocking1} - end. - -record_confirm(undefined, _, State) -> - State; -record_confirm(MsgSeqNo, XName, State) -> - record_confirms([{MsgSeqNo, XName}], State). - -record_confirms([], State) -> - State; -record_confirms(MXs, State = #ch{confirmed = C}) -> - State#ch{confirmed = [MXs | C]}. - -confirm([], _QPid, State) -> - State; -confirm(MsgSeqNos, QPid, State) -> - {MXs, State1} = process_confirms(MsgSeqNos, QPid, State), - record_confirms(MXs, State1). - -process_confirms(MsgSeqNos, QPid, State = #ch{unconfirmed_mq = UMQ, - unconfirmed_qm = UQM}) -> - {MXs, UMQ1, UQM1} = - lists:foldl( - fun(MsgSeqNo, {_DMs, UMQ0, _UQM} = Acc) -> - case gb_trees:lookup(MsgSeqNo, UMQ0) of - {value, XQ} -> remove_unconfirmed(MsgSeqNo, QPid, XQ, Acc, - State); - none -> Acc - end - end, {[], UMQ, UQM}, MsgSeqNos), - {MXs, State#ch{unconfirmed_mq = UMQ1, unconfirmed_qm = UQM1}}. - -remove_unconfirmed(MsgSeqNo, QPid, {XName, Qs}, {MXs, UMQ, UQM}, State) -> - %% these confirms will be emitted even when a queue dies, but that - %% should be fine, since the queue stats get erased immediately - maybe_incr_stats([{{QPid, XName}, 1}], confirm, State), - UQM1 = case gb_trees:lookup(QPid, UQM) of - {value, MsgSeqNos} -> - MsgSeqNos1 = gb_sets:delete(MsgSeqNo, MsgSeqNos), - case gb_sets:is_empty(MsgSeqNos1) of - true -> gb_trees:delete(QPid, UQM); - false -> gb_trees:update(QPid, MsgSeqNos1, UQM) - end; - none -> - UQM - end, - Qs1 = gb_sets:del_element(QPid, Qs), - case gb_sets:is_empty(Qs1) of - true -> - {[{MsgSeqNo, XName} | MXs], gb_trees:delete(MsgSeqNo, UMQ), UQM1}; - false -> - {MXs, gb_trees:update(MsgSeqNo, {XName, Qs1}, UMQ), UQM1} - end. - -handle_method(#'channel.open'{}, _, State = #ch{state = starting}) -> - {reply, #'channel.open_ok'{}, State#ch{state = running}}; - -handle_method(#'channel.open'{}, _, _State) -> - rabbit_misc:protocol_error( - command_invalid, "second 'channel.open' seen", []); - -handle_method(_Method, _, #ch{state = starting}) -> - rabbit_misc:protocol_error(channel_error, "expected 'channel.open'", []); - -handle_method(#'channel.close_ok'{}, _, #ch{state = closing}) -> - stop; - -handle_method(#'channel.close'{}, _, State = #ch{state = closing}) -> - {reply, #'channel.close_ok'{}, State}; - -handle_method(_Method, _, State = #ch{state = closing}) -> - {noreply, State}; - -handle_method(#'channel.close'{}, _, State = #ch{reader_pid = ReaderPid}) -> - {ok, State1} = rollback_and_notify(State), - ReaderPid ! {channel_closing, self()}, - {noreply, State1}; - -handle_method(#'access.request'{},_, State) -> - {reply, #'access.request_ok'{ticket = 1}, State}; - -handle_method(#'basic.publish'{exchange = ExchangeNameBin, - routing_key = RoutingKey, - mandatory = Mandatory, - immediate = Immediate}, - Content, State = #ch{virtual_host = VHostPath, - transaction_id = TxnKey, - confirm_enabled = ConfirmEnabled}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_write_permitted(ExchangeName, State), - Exchange = rabbit_exchange:lookup_or_die(ExchangeName), - check_internal_exchange(Exchange), - %% We decode the content's properties here because we're almost - %% certain to want to look at delivery-mode and priority. - DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), - check_user_id_header(DecodedContent#content.properties, State), - {MsgSeqNo, State1} = - case ConfirmEnabled of - false -> {undefined, State}; - true -> SeqNo = State#ch.publish_seqno, - {SeqNo, State#ch{publish_seqno = SeqNo + 1}} - end, - case rabbit_basic:message(ExchangeName, RoutingKey, DecodedContent) of - {ok, Message} -> - {RoutingRes, DeliveredQPids} = - rabbit_exchange:publish( - Exchange, - rabbit_basic:delivery(Mandatory, Immediate, TxnKey, Message, - MsgSeqNo)), - State2 = process_routing_result(RoutingRes, DeliveredQPids, - ExchangeName, MsgSeqNo, Message, - State1), - maybe_incr_stats([{ExchangeName, 1} | - [{{QPid, ExchangeName}, 1} || - QPid <- DeliveredQPids]], publish, State2), - {noreply, case TxnKey of - none -> State2; - _ -> add_tx_participants(DeliveredQPids, State2) - end}; - {error, Reason} -> - rabbit_misc:protocol_error(precondition_failed, - "invalid message: ~p", [Reason]) - end; - -handle_method(#'basic.nack'{delivery_tag = DeliveryTag, - multiple = Multiple, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, Multiple, State); - -handle_method(#'basic.ack'{delivery_tag = DeliveryTag, - multiple = Multiple}, - _, State = #ch{transaction_id = TxnKey, - unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - QIncs = ack(TxnKey, Acked), - Participants = [QPid || {QPid, _} <- QIncs], - maybe_incr_stats(QIncs, ack, State), - {noreply, case TxnKey of - none -> ok = notify_limiter(State#ch.limiter_pid, Acked), - State#ch{unacked_message_q = Remaining}; - _ -> NewUAQ = queue:join(State#ch.uncommitted_ack_q, - Acked), - add_tx_participants( - Participants, - State#ch{unacked_message_q = Remaining, - uncommitted_ack_q = NewUAQ}) - end}; - -handle_method(#'basic.get'{queue = QueueNameBin, - no_ack = NoAck}, - _, State = #ch{writer_pid = WriterPid, - reader_pid = ReaderPid, - next_tag = DeliveryTag}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:basic_get(Q, self(), NoAck) end) of - {ok, MessageCount, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}}} -> - State1 = lock_message(not(NoAck), - ack_record(DeliveryTag, none, Msg), - State), - maybe_incr_stats([{QPid, 1}], - case NoAck of - true -> get_no_ack; - false -> get - end, State), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.get_ok'{delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey, - message_count = MessageCount}, - Content), - {noreply, State1#ch{next_tag = DeliveryTag + 1}}; - empty -> - {reply, #'basic.get_empty'{}, State} - end; - -handle_method(#'basic.consume'{queue = QueueNameBin, - consumer_tag = ConsumerTag, - no_local = _, % FIXME: implement - no_ack = NoAck, - exclusive = ExclusiveConsume, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid, - limiter_pid = LimiterPid, - consumer_mapping = ConsumerMapping }) -> - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - ActualConsumerTag = - case ConsumerTag of - <<>> -> rabbit_guid:binstring_guid("amq.ctag"); - Other -> Other - end, - - %% We get the queue process to send the consume_ok on our - %% behalf. This is for symmetry with basic.cancel - see - %% the comment in that method for why. - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> - rabbit_amqqueue:basic_consume( - Q, NoAck, self(), LimiterPid, - ActualConsumerTag, ExclusiveConsume, - ok_msg(NoWait, #'basic.consume_ok'{ - consumer_tag = ActualConsumerTag})) - end) of - ok -> - {noreply, State#ch{consumer_mapping = - dict:store(ActualConsumerTag, - QueueName, - ConsumerMapping)}}; - {error, exclusive_consume_unavailable} -> - rabbit_misc:protocol_error( - access_refused, "~s in exclusive use", - [rabbit_misc:rs(QueueName)]) - end; - {ok, _} -> - %% Attempted reuse of consumer tag. - rabbit_misc:protocol_error( - not_allowed, "attempt to reuse consumer tag '~s'", [ConsumerTag]) - end; - -handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, - nowait = NoWait}, - _, State = #ch{consumer_mapping = ConsumerMapping }) -> - OkMsg = #'basic.cancel_ok'{consumer_tag = ConsumerTag}, - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - %% Spec requires we ignore this situation. - return_ok(State, NoWait, OkMsg); - {ok, QueueName} -> - NewState = State#ch{consumer_mapping = - dict:erase(ConsumerTag, - ConsumerMapping)}, - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> - %% In order to ensure that no more messages - %% are sent to the consumer after the - %% cancel_ok has been sent, we get the - %% queue process to send the cancel_ok on - %% our behalf. If we were sending the - %% cancel_ok ourselves it might overtake a - %% message sent previously by the queue. - rabbit_amqqueue:basic_cancel( - Q, self(), ConsumerTag, - ok_msg(NoWait, #'basic.cancel_ok'{ - consumer_tag = ConsumerTag})) - end) of - ok -> - {noreply, NewState}; - {error, not_found} -> - %% Spec requires we ignore this situation. - return_ok(NewState, NoWait, OkMsg) - end - end; - -handle_method(#'basic.qos'{global = true}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "global=true", []); - -handle_method(#'basic.qos'{prefetch_size = Size}, _, _State) when Size /= 0 -> - rabbit_misc:protocol_error(not_implemented, - "prefetch_size!=0 (~w)", [Size]); - -handle_method(#'basic.qos'{prefetch_count = PrefetchCount}, - _, State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case {LimiterPid, PrefetchCount} of - {undefined, 0} -> undefined; - {undefined, _} -> start_limiter(State); - {_, _} -> LimiterPid - end, - LimiterPid2 = case rabbit_limiter:limit(LimiterPid1, PrefetchCount) of - ok -> LimiterPid1; - stopped -> unlimit_queues(State) - end, - {reply, #'basic.qos_ok'{}, State#ch{limiter_pid = LimiterPid2}}; - -handle_method(#'basic.recover_async'{requeue = true}, - _, State = #ch{unacked_message_q = UAMQ, - limiter_pid = LimiterPid}) -> - OkFun = fun () -> ok end, - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - %% The Qpid python test suite incorrectly assumes - %% that messages will be requeued in their original - %% order. To keep it happy we reverse the id list - %% since we are given them in reverse order. - rabbit_misc:with_exit_handler( - OkFun, fun () -> - rabbit_amqqueue:requeue( - QPid, lists:reverse(MsgIds), self()) - end) - end, ok, UAMQ), - ok = notify_limiter(LimiterPid, UAMQ), - %% No answer required - basic.recover is the newer, synchronous - %% variant of this method - {noreply, State#ch{unacked_message_q = queue:new()}}; - -handle_method(#'basic.recover_async'{requeue = false}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "requeue=false", []); - -handle_method(#'basic.recover'{requeue = Requeue}, Content, State) -> - {noreply, State2 = #ch{writer_pid = WriterPid}} = - handle_method(#'basic.recover_async'{requeue = Requeue}, - Content, - State), - ok = rabbit_writer:send_command(WriterPid, #'basic.recover_ok'{}), - {noreply, State2}; - -handle_method(#'basic.reject'{delivery_tag = DeliveryTag, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, false, State); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - type = TypeNameBin, - passive = false, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - nowait = NoWait, - arguments = Args}, - _, State = #ch{virtual_host = VHostPath}) -> - CheckedType = rabbit_exchange:check_type(TypeNameBin), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - X = case rabbit_exchange:lookup(ExchangeName) of - {ok, FoundX} -> FoundX; - {error, not_found} -> - check_name('exchange', ExchangeNameBin), - case rabbit_misc:r_arg(VHostPath, exchange, Args, - <<"alternate-exchange">>) of - undefined -> ok; - AName -> check_read_permitted(ExchangeName, State), - check_write_permitted(AName, State), - ok - end, - rabbit_exchange:declare(ExchangeName, - CheckedType, - Durable, - AutoDelete, - Internal, - Args) - end, - ok = rabbit_exchange:assert_equivalence(X, CheckedType, Durable, - AutoDelete, Internal, Args), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), - check_not_default_exchange(ExchangeName), - _ = rabbit_exchange:lookup_or_die(ExchangeName), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.delete'{exchange = ExchangeNameBin, - if_unused = IfUnused, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - case rabbit_exchange:delete(ExchangeName, IfUnused) of - {error, not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(ExchangeName)]); - ok -> - return_ok(State, NoWait, #'exchange.delete_ok'{}) - end; - -handle_method(#'exchange.bind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.bind_ok'{}, NoWait, State); - -handle_method(#'exchange.unbind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.unbind_ok'{}, NoWait, State); - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = false, - durable = Durable, - exclusive = ExclusiveDeclare, - auto_delete = AutoDelete, - nowait = NoWait, - arguments = Args} = Declare, - _, State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid, - queue_collector_pid = CollectorPid}) -> - Owner = case ExclusiveDeclare of - true -> ReaderPid; - false -> none - end, - ActualNameBin = case QueueNameBin of - <<>> -> rabbit_guid:binstring_guid("amq.gen"); - Other -> check_name('queue', Other) - end, - QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> ok = rabbit_amqqueue:assert_equivalence( - Q, Durable, AutoDelete, Args, Owner), - rabbit_amqqueue:stat(Q) - end) of - {ok, MessageCount, ConsumerCount} -> - return_queue_declare_ok(QueueName, NoWait, MessageCount, - ConsumerCount, State); - {error, not_found} -> - case rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, - Args, Owner) of - {new, Q = #amqqueue{}} -> - %% We need to notify the reader within the channel - %% process so that we can be sure there are no - %% outstanding exclusive queues being declared as - %% the connection shuts down. - ok = case Owner of - none -> ok; - _ -> rabbit_queue_collector:register( - CollectorPid, Q) - end, - return_queue_declare_ok(QueueName, NoWait, 0, 0, State); - {existing, _Q} -> - %% must have been created between the stat and the - %% declare. Loop around again. - handle_method(Declare, none, State) - end - end; - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid}) -> - QueueName = rabbit_misc:r(VHostPath, queue, QueueNameBin), - check_configure_permitted(QueueName, State), - {{ok, MessageCount, ConsumerCount}, #amqqueue{} = Q} = - rabbit_amqqueue:with_or_die( - QueueName, fun (Q) -> {rabbit_amqqueue:stat(Q), Q} end), - ok = rabbit_amqqueue:check_exclusive_access(Q, ReaderPid), - return_queue_declare_ok(QueueName, NoWait, MessageCount, ConsumerCount, - State); - -handle_method(#'queue.delete'{queue = QueueNameBin, - if_unused = IfUnused, - if_empty = IfEmpty, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:delete(Q, IfUnused, IfEmpty) end) of - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(QueueName)]); - {error, not_empty} -> - rabbit_misc:protocol_error( - precondition_failed, "~s not empty", [rabbit_misc:rs(QueueName)]); - {ok, PurgedMessageCount} -> - return_ok(State, NoWait, - #'queue.delete_ok'{message_count = PurgedMessageCount}) - end; - -handle_method(#'queue.bind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.bind_ok'{}, NoWait, State); - -handle_method(#'queue.unbind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.unbind_ok'{}, false, State); - -handle_method(#'queue.purge'{queue = QueueNameBin, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - {ok, PurgedMessageCount} = rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:purge(Q) end), - return_ok(State, NoWait, - #'queue.purge_ok'{message_count = PurgedMessageCount}); - - -handle_method(#'tx.select'{}, _, #ch{confirm_enabled = true}) -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from confirm to tx mode", []); - -handle_method(#'tx.select'{}, _, State = #ch{transaction_id = none}) -> - {reply, #'tx.select_ok'{}, new_tx(State)}; - -handle_method(#'tx.select'{}, _, State) -> - {reply, #'tx.select_ok'{}, State}; - -handle_method(#'tx.commit'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.commit'{}, _, State) -> - {reply, #'tx.commit_ok'{}, internal_commit(State)}; - -handle_method(#'tx.rollback'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.rollback'{}, _, State) -> - {reply, #'tx.rollback_ok'{}, internal_rollback(State)}; - -handle_method(#'confirm.select'{}, _, #ch{transaction_id = TxId}) - when TxId =/= none -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from tx to confirm mode", []); - -handle_method(#'confirm.select'{nowait = NoWait}, _, State) -> - return_ok(State#ch{confirm_enabled = true}, - NoWait, #'confirm.select_ok'{}); - -handle_method(#'channel.flow'{active = true}, _, - State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case rabbit_limiter:unblock(LimiterPid) of - ok -> LimiterPid; - stopped -> unlimit_queues(State) - end, - {reply, #'channel.flow_ok'{active = true}, - State#ch{limiter_pid = LimiterPid1}}; - -handle_method(#'channel.flow'{active = false}, _, - State = #ch{limiter_pid = LimiterPid, - consumer_mapping = Consumers}) -> - LimiterPid1 = case LimiterPid of - undefined -> start_limiter(State); - Other -> Other - end, - State1 = State#ch{limiter_pid = LimiterPid1}, - ok = rabbit_limiter:block(LimiterPid1), - case consumer_queues(Consumers) of - [] -> {reply, #'channel.flow_ok'{active = false}, State1}; - QPids -> Queues = [{QPid, erlang:monitor(process, QPid)} || - QPid <- QPids], - ok = rabbit_amqqueue:flush_all(QPids, self()), - {noreply, State1#ch{blocking = dict:from_list(Queues)}} - end; - -handle_method(_MethodRecord, _Content, _State) -> - rabbit_misc:protocol_error( - command_invalid, "unimplemented method", []). - -%%---------------------------------------------------------------------------- - -binding_action(Fun, ExchangeNameBin, DestinationType, DestinationNameBin, - RoutingKey, Arguments, ReturnMethod, NoWait, - State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid}) -> - %% FIXME: connection exception (!) on failure?? - %% (see rule named "failure" in spec-XML) - %% FIXME: don't allow binding to internal exchanges - - %% including the one named "" ! - {DestinationName, ActualRoutingKey} = - expand_binding(DestinationType, DestinationNameBin, RoutingKey, State), - check_write_permitted(DestinationName, State), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - [check_not_default_exchange(N) || N <- [DestinationName, ExchangeName]], - check_read_permitted(ExchangeName, State), - case Fun(#binding{source = ExchangeName, - destination = DestinationName, - key = ActualRoutingKey, - args = Arguments}, - fun (_X, Q = #amqqueue{}) -> - try rabbit_amqqueue:check_exclusive_access(Q, ReaderPid) - catch exit:Reason -> {error, Reason} - end; - (_X, #exchange{}) -> - ok - end) of - {error, source_not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, destination_not_found} -> - rabbit_misc:not_found(DestinationName); - {error, source_and_destination_not_found} -> - rabbit_misc:protocol_error( - not_found, "no ~s and no ~s", [rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, binding_not_found} -> - rabbit_misc:protocol_error( - not_found, "no binding ~s between ~s and ~s", - [RoutingKey, rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, #amqp_error{} = Error} -> - rabbit_misc:protocol_error(Error); - ok -> return_ok(State, NoWait, ReturnMethod) - end. - -basic_return(#basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}, - #ch{protocol = Protocol, writer_pid = WriterPid}, Reason) -> - {_Close, ReplyCode, ReplyText} = Protocol:lookup_amqp_exception(Reason), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.return'{reply_code = ReplyCode, - reply_text = ReplyText, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - Content). - -reject(DeliveryTag, Requeue, Multiple, State = #ch{unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - rabbit_amqqueue:reject(QPid, MsgIds, Requeue, self()) - end, ok, Acked), - ok = notify_limiter(State#ch.limiter_pid, Acked), - {noreply, State#ch{unacked_message_q = Remaining}}. - -ack_record(DeliveryTag, ConsumerTag, - _MsgStruct = {_QName, QPid, MsgId, _Redelivered, _Msg}) -> - {DeliveryTag, ConsumerTag, {QPid, MsgId}}. - -collect_acks(Q, 0, true) -> - {Q, queue:new()}; -collect_acks(Q, DeliveryTag, Multiple) -> - collect_acks(queue:new(), queue:new(), Q, DeliveryTag, Multiple). - -collect_acks(ToAcc, PrefixAcc, Q, DeliveryTag, Multiple) -> - case queue:out(Q) of - {{value, UnackedMsg = {CurrentDeliveryTag, _ConsumerTag, _Msg}}, - QTail} -> - if CurrentDeliveryTag == DeliveryTag -> - {queue:in(UnackedMsg, ToAcc), queue:join(PrefixAcc, QTail)}; - Multiple -> - collect_acks(queue:in(UnackedMsg, ToAcc), PrefixAcc, - QTail, DeliveryTag, Multiple); - true -> - collect_acks(ToAcc, queue:in(UnackedMsg, PrefixAcc), - QTail, DeliveryTag, Multiple) - end; - {empty, _} -> - rabbit_misc:protocol_error( - precondition_failed, "unknown delivery tag ~w", [DeliveryTag]) - end. - -add_tx_participants(MoreP, State = #ch{tx_participants = Participants}) -> - State#ch{tx_participants = sets:union(Participants, - sets:from_list(MoreP))}. - -ack(TxnKey, UAQ) -> - fold_per_queue( - fun (QPid, MsgIds, L) -> - ok = rabbit_amqqueue:ack(QPid, TxnKey, MsgIds, self()), - [{QPid, length(MsgIds)} | L] - end, [], UAQ). - -make_tx_id() -> rabbit_guid:guid(). - -new_tx(State) -> - State#ch{transaction_id = make_tx_id(), - tx_participants = sets:new(), - uncommitted_ack_q = queue:new()}. - -internal_commit(State = #ch{transaction_id = TxnKey, - tx_participants = Participants}) -> - case rabbit_amqqueue:commit_all(sets:to_list(Participants), - TxnKey, self()) of - ok -> ok = notify_limiter(State#ch.limiter_pid, - State#ch.uncommitted_ack_q), - new_tx(State); - {error, Errors} -> rabbit_misc:protocol_error( - internal_error, "commit failed: ~w", [Errors]) - end. - -internal_rollback(State = #ch{transaction_id = TxnKey, - tx_participants = Participants, - uncommitted_ack_q = UAQ, - unacked_message_q = UAMQ}) -> - ?LOGDEBUG("rollback ~p~n - ~p acks uncommitted, ~p messages unacked~n", - [self(), - queue:len(UAQ), - queue:len(UAMQ)]), - ok = rabbit_amqqueue:rollback_all(sets:to_list(Participants), - TxnKey, self()), - NewUAMQ = queue:join(UAQ, UAMQ), - new_tx(State#ch{unacked_message_q = NewUAMQ}). - -rollback_and_notify(State = #ch{state = closing}) -> - {ok, State}; -rollback_and_notify(State = #ch{transaction_id = none}) -> - {notify_queues(State), State#ch{state = closing}}; -rollback_and_notify(State) -> - State1 = internal_rollback(State), - {notify_queues(State1), State1#ch{state = closing}}. - -fold_per_queue(F, Acc0, UAQ) -> - D = rabbit_misc:queue_fold( - fun ({_DTag, _CTag, {QPid, MsgId}}, D) -> - %% dict:append would avoid the lists:reverse in - %% handle_message({recover, true}, ...). However, it - %% is significantly slower when going beyond a few - %% thousand elements. - rabbit_misc:dict_cons(QPid, MsgId, D) - end, dict:new(), UAQ), - dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, - Acc0, D). - -start_limiter(State = #ch{unacked_message_q = UAMQ, start_limiter_fun = SLF}) -> - {ok, LPid} = SLF(queue:len(UAMQ)), - ok = limit_queues(LPid, State), - LPid. - -notify_queues(#ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:notify_down_all(consumer_queues(Consumers), self()). - -unlimit_queues(State) -> - ok = limit_queues(undefined, State), - undefined. - -limit_queues(LPid, #ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:limit_all(consumer_queues(Consumers), self(), LPid). - -consumer_queues(Consumers) -> - [QPid || QueueName <- - sets:to_list( - dict:fold(fun (_ConsumerTag, QueueName, S) -> - sets:add_element(QueueName, S) - end, sets:new(), Consumers)), - case rabbit_amqqueue:lookup(QueueName) of - {ok, Q} -> QPid = Q#amqqueue.pid, true; - %% queue has been deleted in the meantime - {error, not_found} -> QPid = none, false - end]. - -%% tell the limiter about the number of acks that have been received -%% for messages delivered to subscribed consumers, but not acks for -%% messages sent in a response to a basic.get (identified by their -%% 'none' consumer tag) -notify_limiter(undefined, _Acked) -> - ok; -notify_limiter(LimiterPid, Acked) -> - case rabbit_misc:queue_fold(fun ({_, none, _}, Acc) -> Acc; - ({_, _, _}, Acc) -> Acc + 1 - end, 0, Acked) of - 0 -> ok; - Count -> rabbit_limiter:ack(LimiterPid, Count) - end. - -process_routing_result(unroutable, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State, no_route), - maybe_incr_stats([{Msg#basic_message.exchange_name, 1}], - return_unroutable, State), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(not_delivered, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State, no_consumers), - maybe_incr_stats([{Msg#basic_message.exchange_name, 1}], - return_not_delivered, State), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, [], XName, MsgSeqNo, _, State) -> - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, _, _, undefined, _, State) -> - State; -process_routing_result(routed, QPids, XName, MsgSeqNo, _, State) -> - #ch{unconfirmed_mq = UMQ, unconfirmed_qm = UQM} = State, - UMQ1 = gb_trees:insert(MsgSeqNo, {XName, gb_sets:from_list(QPids)}, UMQ), - SingletonSet = gb_sets:singleton(MsgSeqNo), - UQM1 = lists:foldl( - fun (QPid, UQM2) -> - maybe_monitor(QPid), - case gb_trees:lookup(QPid, UQM2) of - {value, MsgSeqNos} -> - MsgSeqNos1 = gb_sets:insert(MsgSeqNo, MsgSeqNos), - gb_trees:update(QPid, MsgSeqNos1, UQM2); - none -> - gb_trees:insert(QPid, SingletonSet, UQM2) - end - end, UQM, QPids), - State#ch{unconfirmed_mq = UMQ1, unconfirmed_qm = UQM1}. - -lock_message(true, MsgStruct, State = #ch{unacked_message_q = UAMQ}) -> - State#ch{unacked_message_q = queue:in(MsgStruct, UAMQ)}; -lock_message(false, _MsgStruct, State) -> - State. - -send_nacks([], State) -> - State; -send_nacks(MXs, State) -> - MsgSeqNos = [ MsgSeqNo || {MsgSeqNo, _} <- MXs ], - coalesce_and_send(MsgSeqNos, - fun(MsgSeqNo, Multiple) -> - #'basic.nack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State). - -send_confirms(State = #ch{confirmed = C}) -> - C1 = lists:append(C), - MsgSeqNos = [ begin maybe_incr_stats([{ExchangeName, 1}], confirm, State), - MsgSeqNo - end || {MsgSeqNo, ExchangeName} <- C1 ], - send_confirms(MsgSeqNos, State #ch{confirmed = []}). -send_confirms([], State) -> - State; -send_confirms([MsgSeqNo], State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, - #'basic.ack'{delivery_tag = MsgSeqNo}), - State; -send_confirms(Cs, State) -> - coalesce_and_send(Cs, fun(MsgSeqNo, Multiple) -> - #'basic.ack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State). - -coalesce_and_send(MsgSeqNos, MkMsgFun, - State = #ch{writer_pid = WriterPid, unconfirmed_mq = UMQ}) -> - SMsgSeqNos = lists:usort(MsgSeqNos), - CutOff = case gb_trees:is_empty(UMQ) of - true -> lists:last(SMsgSeqNos) + 1; - false -> {SeqNo, _XQ} = gb_trees:smallest(UMQ), SeqNo - end, - {Ms, Ss} = lists:splitwith(fun(X) -> X < CutOff end, SMsgSeqNos), - case Ms of - [] -> ok; - _ -> ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(lists:last(Ms), true)) - end, - [ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(SeqNo, false)) || SeqNo <- Ss], - State. - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, _) -> self(); -i(connection, #ch{reader_pid = ReaderPid}) -> ReaderPid; -i(number, #ch{channel = Channel}) -> Channel; -i(user, #ch{user = User}) -> User#user.username; -i(vhost, #ch{virtual_host = VHost}) -> VHost; -i(transactional, #ch{transaction_id = TxnKey}) -> TxnKey =/= none; -i(confirm, #ch{confirm_enabled = CE}) -> CE; -i(consumer_count, #ch{consumer_mapping = ConsumerMapping}) -> - dict:size(ConsumerMapping); -i(messages_unconfirmed, #ch{unconfirmed_mq = UMQ}) -> - gb_trees:size(UMQ); -i(messages_unacknowledged, #ch{unacked_message_q = UAMQ, - uncommitted_ack_q = UAQ}) -> - queue:len(UAMQ) + queue:len(UAQ); -i(acks_uncommitted, #ch{uncommitted_ack_q = UAQ}) -> - queue:len(UAQ); -i(prefetch_count, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:get_limit(LimiterPid); -i(client_flow_blocked, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:is_blocked(LimiterPid); -i(Item, _) -> - throw({bad_argument, Item}). - -maybe_incr_stats(QXIncs, Measure, #ch{stats_timer = StatsTimer}) -> - case rabbit_event:stats_level(StatsTimer) of - fine -> [incr_stats(QX, Inc, Measure) || {QX, Inc} <- QXIncs]; - _ -> ok - end. - -incr_stats({QPid, _} = QX, Inc, Measure) -> - maybe_monitor(QPid), - update_measures(queue_exchange_stats, QX, Inc, Measure); -incr_stats(QPid, Inc, Measure) when is_pid(QPid) -> - maybe_monitor(QPid), - update_measures(queue_stats, QPid, Inc, Measure); -incr_stats(X, Inc, Measure) -> - update_measures(exchange_stats, X, Inc, Measure). - -maybe_monitor(QPid) -> - case get({monitoring, QPid}) of - undefined -> erlang:monitor(process, QPid), - put({monitoring, QPid}, true); - _ -> ok - end. - -update_measures(Type, QX, Inc, Measure) -> - Measures = case get({Type, QX}) of - undefined -> []; - D -> D - end, - Cur = case orddict:find(Measure, Measures) of - error -> 0; - {ok, C} -> C - end, - put({Type, QX}, - orddict:store(Measure, Cur + Inc, Measures)). - -internal_emit_stats(State) -> - internal_emit_stats(State, []). - -internal_emit_stats(State = #ch{stats_timer = StatsTimer}, Extra) -> - CoarseStats = infos(?STATISTICS_KEYS, State), - case rabbit_event:stats_level(StatsTimer) of - coarse -> - rabbit_event:notify(channel_stats, Extra ++ CoarseStats); - fine -> - FineStats = - [{channel_queue_stats, - [{QPid, Stats} || {{queue_stats, QPid}, Stats} <- get()]}, - {channel_exchange_stats, - [{X, Stats} || {{exchange_stats, X}, Stats} <- get()]}, - {channel_queue_exchange_stats, - [{QX, Stats} || - {{queue_exchange_stats, QX}, Stats} <- get()]}], - rabbit_event:notify(channel_stats, - Extra ++ CoarseStats ++ FineStats) - end. - -erase_queue_stats(QPid) -> - erase({monitoring, QPid}), - erase({queue_stats, QPid}), - [erase({queue_exchange_stats, QX}) || - {{queue_exchange_stats, QX = {QPid0, _}}, _} <- get(), QPid =:= QPid0]. diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl deleted file mode 100644 index 9cc407bc..00000000 --- a/src/rabbit_channel_sup.erl +++ /dev/null @@ -1,92 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup). - --behaviour(supervisor2). - --export([start_link/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([start_link_args/0]). - --type(start_link_args() :: - {'tcp', rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), pid(), rabbit_types:protocol(), rabbit_types:user(), - rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()} | - {'direct', rabbit_channel:channel_number(), pid(), - rabbit_types:protocol(), rabbit_types:user(), rabbit_types:vhost(), - rabbit_framing:amqp_table(), pid()}). - --spec(start_link/1 :: (start_link_args()) -> {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link({tcp, Sock, Channel, FrameMax, ReaderPid, Protocol, User, VHost, - Capabilities, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, WriterPid} = - supervisor2:start_child( - SupPid, - {writer, {rabbit_writer, start_link, - [Sock, Channel, FrameMax, Protocol, ReaderPid]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_writer]}), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ReaderPid, WriterPid, Protocol, User, VHost, - Capabilities, Collector, start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, AState} = rabbit_command_assembler:init(Protocol), - {ok, SupPid, {ChannelPid, AState}}; -start_link({direct, Channel, ClientChannelPid, Protocol, User, VHost, - Capabilities, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ClientChannelPid, ClientChannelPid, Protocol, - User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, SupPid, {ChannelPid, none}}. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. - -start_limiter_fun(SupPid) -> - fun (UnackedCount) -> - Me = self(), - {ok, _Pid} = - supervisor2:start_child( - SupPid, - {limiter, {rabbit_limiter, start_link, [Me, UnackedCount]}, - transient, ?MAX_WAIT, worker, [rabbit_limiter]}) - end. diff --git a/src/rabbit_channel_sup_sup.erl b/src/rabbit_channel_sup_sup.erl deleted file mode 100644 index e2561c80..00000000 --- a/src/rabbit_channel_sup_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup_sup). - --behaviour(supervisor2). - --export([start_link/0, start_channel/2]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(start_channel/2 :: (pid(), rabbit_channel_sup:start_link_args()) -> - {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor2:start_link(?MODULE, []). - -start_channel(Pid, Args) -> - supervisor2:start_child(Pid, [Args]). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{channel_sup, {rabbit_channel_sup, start_link, []}, - temporary, infinity, supervisor, [rabbit_channel_sup]}]}}. diff --git a/src/rabbit_client_sup.erl b/src/rabbit_client_sup.erl deleted file mode 100644 index dbdc6cd4..00000000 --- a/src/rabbit_client_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_client_sup). - --behaviour(supervisor2). - --export([start_link/1, start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (mfa()) -> - rabbit_types:ok_pid_or_error()). --spec(start_link/2 :: ({'local', atom()}, mfa()) -> - rabbit_types:ok_pid_or_error()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Callback) -> - supervisor2:start_link(?MODULE, Callback). - -start_link(SupName, Callback) -> - supervisor2:start_link(SupName, ?MODULE, Callback). - -init({M,F,A}) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{client, {M,F,A}, temporary, infinity, supervisor, [M]}]}}. diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl deleted file mode 100644 index 07036ce8..00000000 --- a/src/rabbit_command_assembler.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_command_assembler). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([analyze_frame/3, init/1, process/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame_type() :: ?FRAME_METHOD | ?FRAME_HEADER | ?FRAME_BODY | - ?FRAME_OOB_METHOD | ?FRAME_OOB_HEADER | ?FRAME_OOB_BODY | - ?FRAME_TRACE | ?FRAME_HEARTBEAT). --type(protocol() :: rabbit_framing:protocol()). --type(method() :: rabbit_framing:amqp_method_record()). --type(class_id() :: rabbit_framing:amqp_class_id()). --type(weight() :: non_neg_integer()). --type(body_size() :: non_neg_integer()). --type(content() :: rabbit_types:undecoded_content()). - --type(frame() :: - {'method', rabbit_framing:amqp_method_name(), binary()} | - {'content_header', class_id(), weight(), body_size(), binary()} | - {'content_body', binary()}). - --type(state() :: - {'method', protocol()} | - {'content_header', method(), class_id(), protocol()} | - {'content_body', method(), body_size(), class_id(), protocol()}). - --spec(analyze_frame/3 :: (frame_type(), binary(), protocol()) -> - frame() | 'heartbeat' | 'error'). - --spec(init/1 :: (protocol()) -> {ok, state()}). --spec(process/2 :: (frame(), state()) -> - {ok, state()} | - {ok, method(), state()} | - {ok, method(), content(), state()} | - {error, rabbit_types:amqp_error()}). - --endif. - -%%-------------------------------------------------------------------- - -analyze_frame(?FRAME_METHOD, - <>, - Protocol) -> - MethodName = Protocol:lookup_method_name({ClassId, MethodId}), - {method, MethodName, MethodFields}; -analyze_frame(?FRAME_HEADER, - <>, - _Protocol) -> - {content_header, ClassId, Weight, BodySize, Properties}; -analyze_frame(?FRAME_BODY, Body, _Protocol) -> - {content_body, Body}; -analyze_frame(?FRAME_HEARTBEAT, <<>>, _Protocol) -> - heartbeat; -analyze_frame(_Type, _Body, _Protocol) -> - error. - -init(Protocol) -> {ok, {method, Protocol}}. - -process({method, MethodName, FieldsBin}, {method, Protocol}) -> - try - Method = Protocol:decode_method_fields(MethodName, FieldsBin), - case Protocol:method_has_content(MethodName) of - true -> {ClassId, _MethodId} = Protocol:method_id(MethodName), - {ok, {content_header, Method, ClassId, Protocol}}; - false -> {ok, Method, {method, Protocol}} - end - catch exit:#amqp_error{} = Reason -> {error, Reason} - end; -process(_Frame, {method, _Protocol}) -> - unexpected_frame("expected method frame, " - "got non method frame instead", [], none); -process({content_header, ClassId, 0, 0, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, Method, Content, {method, Protocol}}; -process({content_header, ClassId, 0, BodySize, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, {content_body, Method, BodySize, Content, Protocol}}; -process({content_header, HeaderClassId, 0, _BodySize, _PropertiesBin}, - {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got one for class ~w instead", - [ClassId, HeaderClassId], Method); -process(_Frame, {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got non content header frame instead", [ClassId], Method); -process({content_body, FragmentBin}, - {content_body, Method, RemainingSize, - Content = #content{payload_fragments_rev = Fragments}, Protocol}) -> - NewContent = Content#content{ - payload_fragments_rev = [FragmentBin | Fragments]}, - case RemainingSize - size(FragmentBin) of - 0 -> {ok, Method, NewContent, {method, Protocol}}; - Sz -> {ok, {content_body, Method, Sz, NewContent, Protocol}} - end; -process(_Frame, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("expected content body, " - "got non content body frame instead", [], Method). - -%%-------------------------------------------------------------------- - -empty_content(ClassId, PropertiesBin, Protocol) -> - #content{class_id = ClassId, - properties = none, - properties_bin = PropertiesBin, - protocol = Protocol, - payload_fragments_rev = []}. - -unexpected_frame(Format, Params, Method) when is_atom(Method) -> - {error, rabbit_misc:amqp_error(unexpected_frame, Format, Params, Method)}; -unexpected_frame(Format, Params, Method) -> - unexpected_frame(Format, Params, rabbit_misc:method_record_type(Method)). diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl deleted file mode 100644 index b2aba2ee..00000000 --- a/src/rabbit_connection_sup.erl +++ /dev/null @@ -1,65 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_connection_sup). - --behaviour(supervisor2). - --export([start_link/0, reader/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid(), pid()}). --spec(reader/1 :: (pid()) -> pid()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link() -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, Collector} = - supervisor2:start_child( - SupPid, - {collector, {rabbit_queue_collector, start_link, []}, - intrinsic, ?MAX_WAIT, worker, [rabbit_queue_collector]}), - {ok, ChannelSupSupPid} = - supervisor2:start_child( - SupPid, - {channel_sup_sup, {rabbit_channel_sup_sup, start_link, []}, - intrinsic, infinity, supervisor, [rabbit_channel_sup_sup]}), - {ok, ReaderPid} = - supervisor2:start_child( - SupPid, - {reader, {rabbit_reader, start_link, - [ChannelSupSupPid, Collector, - rabbit_heartbeat:start_heartbeat_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_reader]}), - {ok, SupPid, ReaderPid}. - -reader(Pid) -> - hd(supervisor2:find_child(Pid, reader)). - -%%-------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl deleted file mode 100644 index 746bb66e..00000000 --- a/src/rabbit_control.erl +++ /dev/null @@ -1,424 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_control). --include("rabbit.hrl"). - --export([start/0, stop/0, action/5, diagnostics/1]). - --define(RPC_TIMEOUT, infinity). --define(WAIT_FOR_VM_ATTEMPTS, 5). - --define(QUIET_OPT, "-q"). --define(NODE_OPT, "-n"). --define(VHOST_OPT, "-p"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(action/5 :: - (atom(), node(), [string()], [{string(), any()}], - fun ((string(), [any()]) -> 'ok')) - -> 'ok'). --spec(diagnostics/1 :: (node()) -> [{string(), [any()]}]). --spec(usage/0 :: () -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), - {[Command0 | Args], Opts} = - case rabbit_misc:get_options([{flag, ?QUIET_OPT}, - {option, ?NODE_OPT, NodeStr}, - {option, ?VHOST_OPT, "/"}], - init:get_plain_arguments()) of - {[], _Opts} -> usage(); - CmdArgsAndOpts -> CmdArgsAndOpts - end, - Opts1 = [case K of - ?NODE_OPT -> {?NODE_OPT, rabbit_misc:makenode(V)}; - _ -> {K, V} - end || {K, V} <- Opts], - Command = list_to_atom(Command0), - Quiet = proplists:get_bool(?QUIET_OPT, Opts1), - Node = proplists:get_value(?NODE_OPT, Opts1), - Inform = case Quiet of - true -> fun (_Format, _Args1) -> ok end; - false -> fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end - end, - %% The reason we don't use a try/catch here is that rpc:call turns - %% thrown errors into normal return values - case catch action(Command, Node, Args, Opts, Inform) of - ok -> - case Quiet of - true -> ok; - false -> io:format("...done.~n") - end, - quit(0); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error("invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]), - usage(); - {error, Reason} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, {'EXIT', Reason}} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, Reason} -> - print_error("unable to connect to node ~w: ~w", [Node, Reason]), - print_badrpc_diagnostics(Node), - quit(2); - Other -> - print_error("~p", [Other]), - quit(2) - end. - -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - -print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - -print_badrpc_diagnostics(Node) -> - [fmt_stderr(Fmt, Args) || {Fmt, Args} <- diagnostics(Node)]. - -diagnostics(Node) -> - {_NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - [ - {"diagnostics:", []}, - case net_adm:names(NodeHost) of - {error, EpmdReason} -> - {"- unable to connect to epmd on ~s: ~w", - [NodeHost, EpmdReason]}; - {ok, NamePorts} -> - {"- nodes and their ports on ~s: ~p", - [NodeHost, [{list_to_atom(Name), Port} || - {Name, Port} <- NamePorts]]} - end, - {"- current node: ~w", [node()]}, - case init:get_argument(home) of - {ok, [[Home]]} -> {"- current node home dir: ~s", [Home]}; - Other -> {"- no current node home dir: ~p", [Other]} - end, - {"- current node cookie hash: ~s", [rabbit_misc:cookie_hash()]} - ]. - -stop() -> - ok. - -usage() -> - io:format("~s", [rabbit_ctl_usage:usage()]), - quit(1). - -action(stop, Node, [], _Opts, Inform) -> - Inform("Stopping and halting node ~p", [Node]), - call(Node, {rabbit, stop_and_halt, []}); - -action(stop_app, Node, [], _Opts, Inform) -> - Inform("Stopping node ~p", [Node]), - call(Node, {rabbit, stop, []}); - -action(start_app, Node, [], _Opts, Inform) -> - Inform("Starting node ~p", [Node]), - call(Node, {rabbit, start, []}); - -action(reset, Node, [], _Opts, Inform) -> - Inform("Resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, reset, []}); - -action(force_reset, Node, [], _Opts, Inform) -> - Inform("Forcefully resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, force_reset, []}); - -action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); - -action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); - -action(status, Node, [], _Opts, Inform) -> - Inform("Status of node ~p", [Node]), - case call(Node, {rabbit, status, []}) of - {badrpc, _} = Res -> Res; - Res -> io:format("~p~n", [Res]), - ok - end; - -action(rotate_logs, Node, [], _Opts, Inform) -> - Inform("Reopening logs for node ~p", [Node]), - call(Node, {rabbit, rotate_logs, [""]}); -action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), - call(Node, {rabbit, rotate_logs, Args}); - -action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> - Inform("Closing connection ~s", [PidStr]), - rpc_call(Node, rabbit_networking, close_connection, - [rabbit_misc:string_to_pid(PidStr), Explanation]); - -action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> - Inform("Creating user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, add_user, Args}); - -action(delete_user, Node, Args = [_Username], _Opts, Inform) -> - Inform("Deleting user ~p", Args), - call(Node, {rabbit_auth_backend_internal, delete_user, Args}); - -action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> - Inform("Changing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, change_password, Args}); - -action(clear_password, Node, Args = [Username], _Opts, Inform) -> - Inform("Clearing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_password, Args}); - -action(set_admin, Node, [Username], _Opts, Inform) -> - Inform("Setting administrative status for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, set_admin, [Username]}); - -action(clear_admin, Node, [Username], _Opts, Inform) -> - Inform("Clearing administrative status for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_admin, [Username]}); - -action(list_users, Node, [], _Opts, Inform) -> - Inform("Listing users", []), - display_list(call(Node, {rabbit_auth_backend_internal, list_users, []})); - -action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Creating vhost ~p", Args), - call(Node, {rabbit_vhost, add, Args}); - -action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Deleting vhost ~p", Args), - call(Node, {rabbit_vhost, delete, Args}); - -action(list_vhosts, Node, [], _Opts, Inform) -> - Inform("Listing vhosts", []), - display_list(call(Node, {rabbit_vhost, list, []})); - -action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> - Inform("Listing permissions for user ~p", Args), - display_list(call(Node, {rabbit_auth_backend_internal, - list_user_permissions, Args})); - -action(list_queues, Node, Args, Opts, Inform) -> - Inform("Listing queues", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, messages]), - display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_exchanges, Node, Args, Opts, Inform) -> - Inform("Listing exchanges", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, type]), - display_info_list(rpc_call(Node, rabbit_exchange, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_bindings, Node, Args, Opts, Inform) -> - Inform("Listing bindings", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]), - display_info_list(rpc_call(Node, rabbit_binding, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_connections, Node, Args, _Opts, Inform) -> - Inform("Listing connections", []), - ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), - display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, - [ArgAtoms]), - ArgAtoms); - -action(list_channels, Node, Args, _Opts, Inform) -> - Inform("Listing channels", []), - ArgAtoms = default_if_empty(Args, [pid, user, transactional, consumer_count, - messages_unacknowledged]), - display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); - -action(list_consumers, Node, _Args, Opts, Inform) -> - Inform("Listing consumers", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - InfoKeys = [queue_name, channel_pid, consumer_tag, ack_required], - case rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg]) of - L when is_list(L) -> display_info_list( - [lists:zip(InfoKeys, tuple_to_list(X)) || - X <- L], - InfoKeys); - Other -> Other - end; - -action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, [Username], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, clear_permissions, - [Username, VHost]}); - -action(list_permissions, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Listing permissions in vhost ~p", [VHost]), - display_list(call(Node, {rabbit_auth_backend_internal, - list_vhost_permissions, [VHost]})); - -action(wait, Node, [], _Opts, Inform) -> - Inform("Waiting for ~p", [Node]), - wait_for_application(Node, ?WAIT_FOR_VM_ATTEMPTS). - -wait_for_application(Node, Attempts) -> - case rpc_call(Node, application, which_applications, [infinity]) of - {badrpc, _} = E -> NewAttempts = Attempts - 1, - case NewAttempts of - 0 -> E; - _ -> wait_for_application0(Node, NewAttempts) - end; - Apps -> case proplists:is_defined(rabbit, Apps) of - %% We've seen the node up; if it goes down - %% die immediately. - true -> ok; - false -> wait_for_application0(Node, 0) - end - end. - -wait_for_application0(Node, Attempts) -> - timer:sleep(1000), - wait_for_application(Node, Attempts). - -default_if_empty(List, Default) when is_list(List) -> - if List == [] -> - Default; - true -> - [list_to_atom(X) || X <- List] - end. - -display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach( - fun (Result) -> display_row( - [format_info_item(proplists:get_value(X, Result)) || - X <- InfoItemKeys]) - end, Results), - ok; -display_info_list(Other, _) -> - Other. - -display_row(Row) -> - io:fwrite(string:join(Row, "\t")), - io:nl(). - --define(IS_U8(X), (X >= 0 andalso X =< 255)). --define(IS_U16(X), (X >= 0 andalso X =< 65535)). - -format_info_item(#resource{name = Name}) -> - escape(Name); -format_info_item({N1, N2, N3, N4} = Value) when - ?IS_U8(N1), ?IS_U8(N2), ?IS_U8(N3), ?IS_U8(N4) -> - rabbit_misc:ntoa(Value); -format_info_item({K1, K2, K3, K4, K5, K6, K7, K8} = Value) when - ?IS_U16(K1), ?IS_U16(K2), ?IS_U16(K3), ?IS_U16(K4), - ?IS_U16(K5), ?IS_U16(K6), ?IS_U16(K7), ?IS_U16(K8) -> - rabbit_misc:ntoa(Value); -format_info_item(Value) when is_pid(Value) -> - rabbit_misc:pid_to_string(Value); -format_info_item(Value) when is_binary(Value) -> - escape(Value); -format_info_item(Value) when is_atom(Value) -> - escape(atom_to_list(Value)); -format_info_item([{TableEntryKey, TableEntryType, _TableEntryValue} | _] = - Value) when is_binary(TableEntryKey) andalso - is_atom(TableEntryType) -> - io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); -format_info_item(Value) -> - io_lib:format("~w", [Value]). - -display_list(L) when is_list(L) -> - lists:foreach(fun (I) when is_binary(I) -> - io:format("~s~n", [escape(I)]); - (I) when is_tuple(I) -> - display_row([escape(V) - || V <- tuple_to_list(I)]) - end, - lists:sort(L)), - ok; -display_list(Other) -> Other. - -call(Node, {Mod, Fun, Args}) -> - rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). - -rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). - -%% escape does C-style backslash escaping of non-printable ASCII -%% characters. We don't escape characters above 127, since they may -%% form part of UTF-8 strings. - -escape(Atom) when is_atom(Atom) -> - escape(atom_to_list(Atom)); -escape(Bin) when is_binary(Bin) -> - escape(binary_to_list(Bin)); -escape(L) when is_list(L) -> - escape_char(lists:reverse(L), []). - -escape_char([$\\ | T], Acc) -> - escape_char(T, [$\\, $\\ | Acc]); -escape_char([X | T], Acc) when X >= 32, X /= 127 -> - escape_char(T, [X | Acc]); -escape_char([X | T], Acc) -> - escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), - $0 + (X band 7) | Acc]); -escape_char([], Acc) -> - Acc. - -prettify_amqp_table(Table) -> - [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. - -prettify_typed_amqp_value(Type, Value) -> - case Type of - longstr -> escape(Value); - table -> prettify_amqp_table(Value); - array -> [prettify_typed_amqp_value(T, V) || {T, V} <- Value]; - _ -> Value - end. - -% the slower shutdown on windows required to flush stdout -quit(Status) -> - case os:type() of - {unix, _} -> - halt(Status); - {win32, _} -> - init:stop(Status) - end. diff --git a/src/rabbit_direct.erl b/src/rabbit_direct.erl deleted file mode 100644 index 586563f6..00000000 --- a/src/rabbit_direct.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_direct). - --export([boot/0, connect/4, start_channel/7]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(boot/0 :: () -> 'ok'). --spec(connect/4 :: (binary(), binary(), binary(), rabbit_types:protocol()) -> - {'ok', {rabbit_types:user(), - rabbit_framing:amqp_table()}}). --spec(start_channel/7 :: - (rabbit_channel:channel_number(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()) -> {'ok', pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - {ok, _} = - supervisor2:start_child( - rabbit_sup, - {rabbit_direct_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_direct_client_sup}, - {rabbit_channel_sup, start_link, []}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%%---------------------------------------------------------------------------- - -connect(Username, Password, VHost, Protocol) -> - case lists:keymember(rabbit, 1, application:which_applications()) of - true -> - try rabbit_access_control:user_pass_login(Username, Password) of - #user{} = User -> - try rabbit_access_control:check_vhost_access(User, VHost) of - ok -> {ok, {User, - rabbit_reader:server_properties(Protocol)}} - catch - exit:#amqp_error{name = access_refused} -> - {error, access_refused} - end - catch - exit:#amqp_error{name = access_refused} -> {error, auth_failure} - end; - false -> - {error, broker_not_found_on_node} - end. - -start_channel(Number, ClientChannelPid, Protocol, User, VHost, Capabilities, - Collector) -> - {ok, _, {ChannelPid, _}} = - supervisor2:start_child( - rabbit_direct_client_sup, - [{direct, Number, ClientChannelPid, Protocol, User, VHost, - Capabilities, Collector}]), - {ok, ChannelPid}. diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl deleted file mode 100644 index 0120f0d6..00000000 --- a/src/rabbit_error_logger.erl +++ /dev/null @@ -1,74 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(LOG_EXCH_NAME, <<"amq.rabbitmq.log">>). - --behaviour(gen_event). - --export([boot/0]). - --export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, - handle_info/2]). - -boot() -> - {ok, DefaultVHost} = application:get_env(default_vhost), - ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). - -init([DefaultVHost]) -> - #exchange{} = rabbit_exchange:declare( - rabbit_misc:r(DefaultVHost, exchange, ?LOG_EXCH_NAME), - topic, true, false, false, []), - {ok, #resource{virtual_host = DefaultVHost, - kind = exchange, - name = ?LOG_EXCH_NAME}}. - -terminate(_Arg, _State) -> - terminated_ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State) -> - ok = publish(Kind, Format, Data, State), - {ok, State}; -handle_event(_Event, State) -> - {ok, State}. - -handle_info(_Info, State) -> - {ok, State}. - -publish(error, Format, Data, State) -> - publish1(<<"error">>, Format, Data, State); -publish(warning_msg, Format, Data, State) -> - publish1(<<"warning">>, Format, Data, State); -publish(info_msg, Format, Data, State) -> - publish1(<<"info">>, Format, Data, State); -publish(_Other, _Format, _Data, _State) -> - ok. - -publish1(RoutingKey, Format, Data, LogExch) -> - {ok, _RoutingRes, _DeliveredQPids} = - rabbit_basic:publish(LogExch, RoutingKey, false, false, none, - #'P_basic'{content_type = <<"text/plain">>}, - list_to_binary(io_lib:format(Format, Data))), - ok. diff --git a/src/rabbit_error_logger_file_h.erl b/src/rabbit_error_logger_file_h.erl deleted file mode 100644 index 7e9ebc4f..00000000 --- a/src/rabbit_error_logger_file_h.erl +++ /dev/null @@ -1,68 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_error_logger_file_h is a wrapper around the error_logger_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers in log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without performing -%% log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(File). - -handle_event(Event, State) -> - error_logger_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - error_logger_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - error_logger_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - error_logger_file_h:terminate(Reason, State). - -code_change(OldVsn, State, Extra) -> - error_logger_file_h:code_change(OldVsn, State, Extra). diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl deleted file mode 100644 index 40651d36..00000000 --- a/src/rabbit_event.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_event). - --include("rabbit.hrl"). - --export([start_link/0]). --export([init_stats_timer/0, ensure_stats_timer/2, stop_stats_timer/1]). --export([reset_stats_timer/1]). --export([stats_level/1, if_enabled/2]). --export([notify/2, notify_if/3]). - -%%---------------------------------------------------------------------------- - --record(state, {level, timer}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([event_type/0, event_props/0, event_timestamp/0, event/0]). - --type(event_type() :: atom()). --type(event_props() :: term()). --type(event_timestamp() :: - {non_neg_integer(), non_neg_integer(), non_neg_integer()}). - --type(event() :: #event { - type :: event_type(), - props :: event_props(), - timestamp :: event_timestamp() - }). - --type(level() :: 'none' | 'coarse' | 'fine'). - --opaque(state() :: #state { - level :: level(), - timer :: atom() - }). - --type(timer_fun() :: fun (() -> 'ok')). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(init_stats_timer/0 :: () -> state()). --spec(ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). --spec(stop_stats_timer/1 :: (state()) -> state()). --spec(reset_stats_timer/1 :: (state()) -> state()). --spec(stats_level/1 :: (state()) -> level()). --spec(if_enabled/2 :: (state(), timer_fun()) -> 'ok'). --spec(notify/2 :: (event_type(), event_props()) -> 'ok'). --spec(notify_if/3 :: (boolean(), event_type(), event_props()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_event:start_link({local, ?MODULE}). - -%% The idea is, for each stat-emitting object: -%% -%% On startup: -%% Timer = init_stats_timer() -%% notify(created event) -%% if_enabled(internal_emit_stats) - so we immediately send something -%% -%% On wakeup: -%% ensure_stats_timer(Timer, emit_stats) -%% (Note we can't emit stats immediately, the timer may have fired 1ms ago.) -%% -%% emit_stats: -%% if_enabled(internal_emit_stats) -%% reset_stats_timer(Timer) - just bookkeeping -%% -%% Pre-hibernation: -%% if_enabled(internal_emit_stats) -%% stop_stats_timer(Timer) -%% -%% internal_emit_stats: -%% notify(stats) - -init_stats_timer() -> - {ok, StatsLevel} = application:get_env(rabbit, collect_statistics), - #state{level = StatsLevel, timer = undefined}. - -ensure_stats_timer(State = #state{level = none}, _Fun) -> - State; -ensure_stats_timer(State = #state{timer = undefined}, Fun) -> - {ok, TRef} = timer:apply_after(?STATS_INTERVAL, - erlang, apply, [Fun, []]), - State#state{timer = TRef}; -ensure_stats_timer(State, _Fun) -> - State. - -stop_stats_timer(State = #state{level = none}) -> - State; -stop_stats_timer(State = #state{timer = undefined}) -> - State; -stop_stats_timer(State = #state{timer = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#state{timer = undefined}. - -reset_stats_timer(State) -> - State#state{timer = undefined}. - -stats_level(#state{level = Level}) -> - Level. - -if_enabled(#state{level = none}, _Fun) -> - ok; -if_enabled(_State, Fun) -> - Fun(), - ok. - -notify_if(true, Type, Props) -> notify(Type, Props); -notify_if(false, _Type, _Props) -> ok. - -notify(Type, Props) -> - %% TODO: switch to os:timestamp() when we drop support for - %% Erlang/OTP < R13B01 - gen_event:notify(rabbit_event, #event{type = Type, - props = Props, - timestamp = now()}). diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl deleted file mode 100644 index 92259195..00000000 --- a/src/rabbit_exchange.erl +++ /dev/null @@ -1,310 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([recover/0, declare/6, lookup/1, lookup_or_die/1, list/1, info_keys/0, - info/1, info/2, info_all/1, info_all/2, publish/2, delete/2]). --export([callback/3]). -%% this must be run inside a mnesia tx --export([maybe_auto_delete/1]). --export([assert_equivalence/6, assert_args_equivalence/2, check_type/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, type/0]). - --type(name() :: rabbit_types:r('exchange')). --type(type() :: atom()). - --spec(recover/0 :: () -> 'ok'). --spec(declare/6 :: - (name(), type(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> rabbit_types:exchange()). --spec(check_type/1 :: - (binary()) -> atom() | rabbit_types:connection_exit()). --spec(assert_equivalence/6 :: - (rabbit_types:exchange(), atom(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:exchange()) | - rabbit_types:error('not_found')). --spec(lookup_or_die/1 :: - (name()) -> rabbit_types:exchange() | - rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:exchange()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:exchange()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:exchange(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(publish/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> {rabbit_router:routing_result(), [pid()]}). --spec(delete/2 :: - (name(), boolean())-> 'ok' | - rabbit_types:error('not_found') | - rabbit_types:error('in_use')). --spec(maybe_auto_delete/1:: - (rabbit_types:exchange()) - -> 'not_deleted' | {'deleted', rabbit_binding:deletions()}). --spec(callback/3:: (rabbit_types:exchange(), atom(), [any()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [name, type, durable, auto_delete, internal, arguments]). - -recover() -> - Xs = rabbit_misc:table_fold( - fun (X, Acc) -> - ok = mnesia:write(rabbit_exchange, X, write), - [X | Acc] - end, [], rabbit_durable_exchange), - Bs = rabbit_binding:recover(), - recover_with_bindings( - lists:keysort(#binding.source, Bs), - lists:keysort(#exchange.name, Xs), []). - -recover_with_bindings([B = #binding{source = XName} | Rest], - Xs = [#exchange{name = XName} | _], - Bindings) -> - recover_with_bindings(Rest, Xs, [B | Bindings]); -recover_with_bindings(Bs, [X = #exchange{type = Type} | Xs], Bindings) -> - (type_to_module(Type)):recover(X, Bindings), - recover_with_bindings(Bs, Xs, []); -recover_with_bindings([], [], []) -> - ok. - -declare(XName, Type, Durable, AutoDelete, Internal, Args) -> - X = #exchange{name = XName, - type = Type, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - arguments = Args}, - %% We want to upset things if it isn't ok - ok = (type_to_module(Type)):validate(X), - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_exchange, XName}) of - [] -> - ok = mnesia:write(rabbit_exchange, X, write), - ok = case Durable of - true -> mnesia:write(rabbit_durable_exchange, - X, write); - false -> ok - end, - {new, X}; - [ExistingX] -> - {existing, ExistingX} - end - end, - fun ({new, Exchange}, Tx) -> - callback(Exchange, create, [Tx, Exchange]), - rabbit_event:notify_if(not Tx, exchange_created, info(Exchange)), - Exchange; - ({existing, Exchange}, _Tx) -> - Exchange; - (Err, _Tx) -> - Err - end). - -%% Used with atoms from records; e.g., the type is expected to exist. -type_to_module(T) -> - {ok, Module} = rabbit_registry:lookup_module(exchange, T), - Module. - -%% Used with binaries sent over the wire; the type may not exist. -check_type(TypeBin) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown exchange type '~s'", [TypeBin]); - T -> - case rabbit_registry:lookup_module(exchange, T) of - {error, not_found} -> rabbit_misc:protocol_error( - command_invalid, - "invalid exchange type '~s'", [T]); - {ok, _Module} -> T - end - end. - -assert_equivalence(X = #exchange{ durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - type = Type}, - Type, Durable, AutoDelete, Internal, RequiredArgs) -> - (type_to_module(Type)):assert_args_equivalence(X, RequiredArgs); -assert_equivalence(#exchange{ name = Name }, - _Type, _Durable, _Internal, _AutoDelete, _Args) -> - rabbit_misc:protocol_error( - precondition_failed, - "cannot redeclare ~s with different type, durable, " - "internal or autodelete value", - [rabbit_misc:rs(Name)]). - -assert_args_equivalence(#exchange{ name = Name, arguments = Args }, - RequiredArgs) -> - %% The spec says "Arguments are compared for semantic - %% equivalence". The only arg we care about is - %% "alternate-exchange". - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, Name, - [<<"alternate-exchange">>]). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_exchange, Name}). - -lookup_or_die(Name) -> - case lookup(Name) of - {ok, X} -> X; - {error, not_found} -> rabbit_misc:not_found(Name) - end. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_exchange, - #exchange{name = rabbit_misc:r(VHostPath, exchange), _ = '_'}). - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, X) -> [{Item, i(Item, X)} || Item <- Items]. - -i(name, #exchange{name = Name}) -> Name; -i(type, #exchange{type = Type}) -> Type; -i(durable, #exchange{durable = Durable}) -> Durable; -i(auto_delete, #exchange{auto_delete = AutoDelete}) -> AutoDelete; -i(internal, #exchange{internal = Internal}) -> Internal; -i(arguments, #exchange{arguments = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(X = #exchange{}) -> infos(?INFO_KEYS, X). - -info(X = #exchange{}, Items) -> infos(Items, X). - -info_all(VHostPath) -> map(VHostPath, fun (X) -> info(X) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (X) -> info(X, Items) end). - -publish(X = #exchange{name = XName}, Delivery) -> - rabbit_router:deliver( - route(Delivery, {queue:from_list([X]), XName, []}), - Delivery). - -route(Delivery, {WorkList, SeenXs, QNames}) -> - case queue:out(WorkList) of - {empty, _WorkList} -> - lists:usort(QNames); - {{value, X = #exchange{type = Type}}, WorkList1} -> - DstNames = process_alternate( - X, ((type_to_module(Type)):route(X, Delivery))), - route(Delivery, - lists:foldl(fun process_route/2, {WorkList1, SeenXs, QNames}, - DstNames)) - end. - -process_alternate(#exchange{name = XName, arguments = Args}, []) -> - case rabbit_misc:r_arg(XName, exchange, Args, <<"alternate-exchange">>) of - undefined -> []; - AName -> [AName] - end; -process_alternate(_X, Results) -> - Results. - -process_route(#resource{kind = exchange} = XName, - {_WorkList, XName, _QNames} = Acc) -> - Acc; -process_route(#resource{kind = exchange} = XName, - {WorkList, #resource{kind = exchange} = SeenX, QNames}) -> - {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:from_list([SeenX, XName]), QNames}; -process_route(#resource{kind = exchange} = XName, - {WorkList, SeenXs, QNames} = Acc) -> - case gb_sets:is_element(XName, SeenXs) of - true -> Acc; - false -> {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:add_element(XName, SeenXs), QNames} - end; -process_route(#resource{kind = queue} = QName, - {WorkList, SeenXs, QNames}) -> - {WorkList, SeenXs, [QName | QNames]}. - -call_with_exchange(XName, Fun, PrePostCommitFun) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> case mnesia:read({rabbit_exchange, XName}) of - [] -> {error, not_found}; - [X] -> Fun(X) - end - end, PrePostCommitFun). - -delete(XName, IfUnused) -> - call_with_exchange( - XName, - case IfUnused of - true -> fun conditional_delete/1; - false -> fun unconditional_delete/1 - end, - fun ({deleted, X, Bs, Deletions}, Tx) -> - ok = rabbit_binding:process_deletions( - rabbit_binding:add_deletion( - XName, {X, deleted, Bs}, Deletions), Tx); - (Error = {error, _InUseOrNotFound}, _Tx) -> - Error - end). - -maybe_auto_delete(#exchange{auto_delete = false}) -> - not_deleted; -maybe_auto_delete(#exchange{auto_delete = true} = X) -> - case conditional_delete(X) of - {error, in_use} -> not_deleted; - {deleted, X, [], Deletions} -> {deleted, Deletions} - end. - -callback(#exchange{type = XType}, Fun, Args) -> - apply(type_to_module(XType), Fun, Args). - -conditional_delete(X = #exchange{name = XName}) -> - case rabbit_binding:has_for_source(XName) of - false -> unconditional_delete(X); - true -> {error, in_use} - end. - -unconditional_delete(X = #exchange{name = XName}) -> - ok = mnesia:delete({rabbit_durable_exchange, XName}), - ok = mnesia:delete({rabbit_exchange, XName}), - Bindings = rabbit_binding:remove_for_source(XName), - {deleted, X, Bindings, rabbit_binding:remove_for_destination(XName)}. diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl deleted file mode 100644 index 547583e9..00000000 --- a/src/rabbit_exchange_type.erl +++ /dev/null @@ -1,50 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - {description, 0}, - {route, 2}, - - %% called BEFORE declaration, to check args etc; may exit with #amqp_error{} - {validate, 1}, - - %% called after declaration when previously absent - {create, 2}, - - %% called when recovering - {recover, 2}, - - %% called after exchange deletion. - {delete, 3}, - - %% called after a binding has been added - {add_binding, 3}, - - %% called after bindings have been deleted. - {remove_bindings, 3}, - - %% called when comparing exchanges for equivalence - should return ok or - %% exit with #amqp_error{} - {assert_args_equivalence, 2} - - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_exchange_type_direct.erl b/src/rabbit_exchange_type_direct.erl deleted file mode 100644 index 349c2f6e..00000000 --- a/src/rabbit_exchange_type_direct.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_direct). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, - add_binding/3, remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type direct"}, - {mfa, {rabbit_registry, register, - [exchange, <<"direct">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"direct">>}, - {description, <<"AMQP direct exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{routing_keys = Routes}}) -> - rabbit_router:match_routing_key(Name, Routes). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_fanout.erl b/src/rabbit_exchange_type_fanout.erl deleted file mode 100644 index bc5293c8..00000000 --- a/src/rabbit_exchange_type_fanout.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_fanout). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type fanout"}, - {mfa, {rabbit_registry, register, - [exchange, <<"fanout">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"fanout">>}, - {description, <<"AMQP fanout exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, _Delivery) -> - rabbit_router:match_routing_key(Name, ['_']). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_headers.erl b/src/rabbit_exchange_type_headers.erl deleted file mode 100644 index d3529b06..00000000 --- a/src/rabbit_exchange_type_headers.erl +++ /dev/null @@ -1,122 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_headers). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type headers"}, - {mfa, {rabbit_registry, register, - [exchange, <<"headers">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --ifdef(use_specs). --spec(headers_match/2 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table()) -> boolean()). --endif. - -description() -> - [{name, <<"headers">>}, - {description, <<"AMQP headers exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{content = Content}}) -> - Headers = case (Content#content.properties)#'P_basic'.headers of - undefined -> []; - H -> rabbit_misc:sort_field_table(H) - end, - rabbit_router:match_bindings( - Name, fun (#binding{args = Spec}) -> headers_match(Spec, Headers) end). - -default_headers_match_kind() -> all. - -parse_x_match(<<"all">>) -> all; -parse_x_match(<<"any">>) -> any; -parse_x_match(Other) -> - rabbit_log:warning("Invalid x-match field value ~p; expected all or any", - [Other]), - default_headers_match_kind(). - -%% Horrendous matching algorithm. Depends for its merge-like -%% (linear-time) behaviour on the lists:keysort -%% (rabbit_misc:sort_field_table) that route/1 and -%% rabbit_binding:{add,remove}/2 do. -%% -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% In other words: REQUIRES BOTH PATTERN AND DATA TO BE SORTED ASCENDING BY KEY. -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% -headers_match(Pattern, Data) -> - MatchKind = case lists:keysearch(<<"x-match">>, 1, Pattern) of - {value, {_, longstr, MK}} -> parse_x_match(MK); - {value, {_, Type, MK}} -> - rabbit_log:warning("Invalid x-match field type ~p " - "(value ~p); expected longstr", - [Type, MK]), - default_headers_match_kind(); - _ -> default_headers_match_kind() - end, - headers_match(Pattern, Data, true, false, MatchKind). - -headers_match([], _Data, AllMatch, _AnyMatch, all) -> - AllMatch; -headers_match([], _Data, _AllMatch, AnyMatch, any) -> - AnyMatch; -headers_match([{<<"x-", _/binary>>, _PT, _PV} | PRest], Data, - AllMatch, AnyMatch, MatchKind) -> - headers_match(PRest, Data, AllMatch, AnyMatch, MatchKind); -headers_match(_Pattern, [], _AllMatch, AnyMatch, MatchKind) -> - headers_match([], [], false, AnyMatch, MatchKind); -headers_match(Pattern = [{PK, _PT, _PV} | _], [{DK, _DT, _DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK > DK -> - headers_match(Pattern, DRest, AllMatch, AnyMatch, MatchKind); -headers_match([{PK, _PT, _PV} | PRest], Data = [{DK, _DT, _DV} | _], - _AllMatch, AnyMatch, MatchKind) when PK < DK -> - headers_match(PRest, Data, false, AnyMatch, MatchKind); -headers_match([{PK, PT, PV} | PRest], [{DK, DT, DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK == DK -> - {AllMatch1, AnyMatch1} = - if - %% It's not properly specified, but a "no value" in a - %% pattern field is supposed to mean simple presence of - %% the corresponding data field. I've interpreted that to - %% mean a type of "void" for the pattern field. - PT == void -> {AllMatch, true}; - %% Similarly, it's not specified, but I assume that a - %% mismatched type causes a mismatched value. - PT =/= DT -> {false, AnyMatch}; - PV == DV -> {AllMatch, true}; - true -> {false, AnyMatch} - end, - headers_match(PRest, DRest, AllMatch1, AnyMatch1, MatchKind). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_topic.erl b/src/rabbit_exchange_type_topic.erl deleted file mode 100644 index 2363d05e..00000000 --- a/src/rabbit_exchange_type_topic.erl +++ /dev/null @@ -1,256 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_topic). - --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type topic"}, - {mfa, {rabbit_registry, register, - [exchange, <<"topic">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%%---------------------------------------------------------------------------- - -description() -> - [{name, <<"topic">>}, - {description, <<"AMQP topic exchange, as per the AMQP specification">>}]. - -%% NB: This may return duplicate results in some situations (that's ok) -route(#exchange{name = X}, - #delivery{message = #basic_message{routing_keys = Routes}}) -> - lists:append([begin - Words = split_topic_key(RKey), - mnesia:async_dirty(fun trie_match/2, [X, Words]) - end || RKey <- Routes]). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. - -recover(_Exchange, Bs) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - lists:foreach(fun (B) -> internal_add_binding(B) end, Bs) - end). - -delete(true, #exchange{name = X}, _Bs) -> - trie_remove_all_edges(X), - trie_remove_all_bindings(X), - ok; -delete(false, _Exchange, _Bs) -> - ok. - -add_binding(true, _Exchange, Binding) -> - internal_add_binding(Binding); -add_binding(false, _Exchange, _Binding) -> - ok. - -remove_bindings(true, _X, Bs) -> - lists:foreach(fun remove_binding/1, Bs), - ok; -remove_bindings(false, _X, _Bs) -> - ok. - -remove_binding(#binding{source = X, key = K, destination = D}) -> - Path = [{FinalNode, _} | _] = follow_down_get_path(X, split_topic_key(K)), - trie_remove_binding(X, FinalNode, D), - remove_path_if_empty(X, Path), - ok. - -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). - -%%---------------------------------------------------------------------------- - -internal_add_binding(#binding{source = X, key = K, destination = D}) -> - FinalNode = follow_down_create(X, split_topic_key(K)), - trie_add_binding(X, FinalNode, D), - ok. - -trie_match(X, Words) -> - trie_match(X, root, Words, []). - -trie_match(X, Node, [], ResAcc) -> - trie_match_part(X, Node, "#", fun trie_match_skip_any/4, [], - trie_bindings(X, Node) ++ ResAcc); -trie_match(X, Node, [W | RestW] = Words, ResAcc) -> - lists:foldl(fun ({WArg, MatchFun, RestWArg}, Acc) -> - trie_match_part(X, Node, WArg, MatchFun, RestWArg, Acc) - end, ResAcc, [{W, fun trie_match/4, RestW}, - {"*", fun trie_match/4, RestW}, - {"#", fun trie_match_skip_any/4, Words}]). - -trie_match_part(X, Node, Search, MatchFun, RestW, ResAcc) -> - case trie_child(X, Node, Search) of - {ok, NextNode} -> MatchFun(X, NextNode, RestW, ResAcc); - error -> ResAcc - end. - -trie_match_skip_any(X, Node, [], ResAcc) -> - trie_match(X, Node, [], ResAcc); -trie_match_skip_any(X, Node, [_ | RestW] = Words, ResAcc) -> - trie_match_skip_any(X, Node, RestW, - trie_match(X, Node, Words, ResAcc)). - -follow_down_create(X, Words) -> - case follow_down_last_node(X, Words) of - {ok, FinalNode} -> FinalNode; - {error, Node, RestW} -> lists:foldl( - fun (W, CurNode) -> - NewNode = new_node_id(), - trie_add_edge(X, CurNode, NewNode, W), - NewNode - end, Node, RestW) - end. - -follow_down_last_node(X, Words) -> - follow_down(X, fun (_, Node, _) -> Node end, root, Words). - -follow_down_get_path(X, Words) -> - {ok, Path} = - follow_down(X, fun (W, Node, PathAcc) -> [{Node, W} | PathAcc] end, - [{root, none}], Words), - Path. - -follow_down(X, AccFun, Acc0, Words) -> - follow_down(X, root, AccFun, Acc0, Words). - -follow_down(_X, _CurNode, _AccFun, Acc, []) -> - {ok, Acc}; -follow_down(X, CurNode, AccFun, Acc, Words = [W | RestW]) -> - case trie_child(X, CurNode, W) of - {ok, NextNode} -> follow_down(X, NextNode, AccFun, - AccFun(W, NextNode, Acc), RestW); - error -> {error, Acc, Words} - end. - -remove_path_if_empty(_, [{root, none}]) -> - ok; -remove_path_if_empty(X, [{Node, W} | [{Parent, _} | _] = RestPath]) -> - case trie_has_any_bindings(X, Node) orelse trie_has_any_children(X, Node) of - true -> ok; - false -> trie_remove_edge(X, Parent, Node, W), - remove_path_if_empty(X, RestPath) - end. - -trie_child(X, Node, Word) -> - case mnesia:read(rabbit_topic_trie_edge, - #trie_edge{exchange_name = X, - node_id = Node, - word = Word}) of - [#topic_trie_edge{node_id = NextNode}] -> {ok, NextNode}; - [] -> error - end. - -trie_bindings(X, Node) -> - MatchHead = #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = '$1'}}, - mnesia:select(rabbit_topic_trie_binding, [{MatchHead, [], ['$1']}]). - -trie_add_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:write/3). - -trie_remove_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:delete_object/3). - -trie_edge_op(X, FromNode, ToNode, W, Op) -> - ok = Op(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = FromNode, - word = W}, - node_id = ToNode}, - write). - -trie_add_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:write/3). - -trie_remove_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:delete_object/3). - -trie_binding_op(X, Node, D, Op) -> - ok = Op(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = D}}, - write). - -trie_has_any_children(X, Node) -> - has_any(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -trie_has_any_bindings(X, Node) -> - has_any(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -trie_remove_all_edges(X) -> - remove_all(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - _ = '_'}, - _ = '_'}). - -trie_remove_all_bindings(X) -> - remove_all(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, _ = '_'}, - _ = '_'}). - -has_any(Table, MatchHead) -> - Select = mnesia:select(Table, [{MatchHead, [], ['$_']}], 1, read), - select_while_no_result(Select) /= '$end_of_table'. - -select_while_no_result({[], Cont}) -> - select_while_no_result(mnesia:select(Cont)); -select_while_no_result(Other) -> - Other. - -remove_all(Table, Pattern) -> - lists:foreach(fun (R) -> mnesia:delete_object(Table, R, write) end, - mnesia:match_object(Table, Pattern, write)). - -new_node_id() -> - rabbit_guid:guid(). - -split_topic_key(Key) -> - split_topic_key(Key, [], []). - -split_topic_key(<<>>, [], []) -> - []; -split_topic_key(<<>>, RevWordAcc, RevResAcc) -> - lists:reverse([lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<<$., Rest/binary>>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [], [lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [C | RevWordAcc], RevResAcc). - diff --git a/src/rabbit_framing.erl b/src/rabbit_framing.erl deleted file mode 100644 index da1a6a49..00000000 --- a/src/rabbit_framing.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% TODO auto-generate - --module(rabbit_framing). - --ifdef(use_specs). - --export_type([protocol/0, - amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(protocol() :: 'rabbit_framing_amqp_0_8' | 'rabbit_framing_amqp_0_9_1'). - --define(protocol_type(T), type(T :: rabbit_framing_amqp_0_8:T | - rabbit_framing_amqp_0_9_1:T)). - --?protocol_type(amqp_field_type()). --?protocol_type(amqp_property_type()). --?protocol_type(amqp_table()). --?protocol_type(amqp_array()). --?protocol_type(amqp_value()). --?protocol_type(amqp_method_name()). --?protocol_type(amqp_method()). --?protocol_type(amqp_method_record()). --?protocol_type(amqp_method_field_name()). --?protocol_type(amqp_property_record()). --?protocol_type(amqp_exception()). --?protocol_type(amqp_exception_code()). --?protocol_type(amqp_class_id()). - --endif. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl deleted file mode 100644 index 234bc55b..00000000 --- a/src/rabbit_guid.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_guid). - --behaviour(gen_server). - --export([start_link/0]). --export([guid/0, string_guid/1, binstring_guid/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_serial"). - --record(state, {serial}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([guid/0]). - --type(guid() :: binary()). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(guid/0 :: () -> guid()). --spec(string_guid/1 :: (any()) -> string()). --spec(binstring_guid/1 :: (any()) -> binary()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(rabbit_mnesia:dir(), ?SERIAL_FILENAME), - Serial = case rabbit_misc:read_term_file(Filename) of - {ok, [Num]} -> Num; - {error, enoent} -> 0; - {error, Reason} -> - throw({error, {cannot_read_serial_file, Filename, Reason}}) - end, - case rabbit_misc:write_term_file(Filename, [Serial + 1]) of - ok -> ok; - {error, Reason1} -> - throw({error, {cannot_write_serial_file, Filename, Reason1}}) - end, - Serial. - -%% generate a GUID. -%% -%% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. -guid() -> - %% We don't use erlang:now() here because a) it may return - %% duplicates when the system clock has been rewound prior to a - %% restart, or ids were generated at a high rate (which causes - %% now() to move ahead of the system time), and b) it is really - %% slow since it takes a global lock and makes a system call. - %% - %% A persisted serial number, in combination with self/0 (which - %% includes the node name) uniquely identifies a process in space - %% and time. We combine that with a process-local counter to give - %% us a GUID. - G = case get(guid) of - undefined -> {{gen_server:call(?SERVER, serial, infinity), self()}, - 0}; - {S, I} -> {S, I+1} - end, - put(guid, G), - erlang:md5(term_to_binary(G)). - -%% generate a readable string representation of a GUID. -string_guid(Prefix) -> - Prefix ++ "-" ++ base64:encode_to_string(guid()). - -binstring_guid(Prefix) -> - list_to_binary(string_guid(Prefix)). - -%%---------------------------------------------------------------------------- - -init([Serial]) -> - {ok, #state{serial = Serial}}. - -handle_call(serial, _From, State = #state{serial = Serial}) -> - {reply, Serial, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_heartbeat.erl b/src/rabbit_heartbeat.erl deleted file mode 100644 index 177ae868..00000000 --- a/src/rabbit_heartbeat.erl +++ /dev/null @@ -1,149 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_heartbeat). - --export([start_heartbeat_sender/3, start_heartbeat_receiver/3, - start_heartbeat_fun/1, pause_monitor/1, resume_monitor/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([heartbeaters/0]). --export_type([start_heartbeat_fun/0]). - --type(heartbeaters() :: {rabbit_types:maybe(pid()), rabbit_types:maybe(pid())}). - --type(heartbeat_callback() :: fun (() -> any())). - --type(start_heartbeat_fun() :: - fun((rabbit_net:socket(), non_neg_integer(), heartbeat_callback(), - non_neg_integer(), heartbeat_callback()) -> - no_return())). - --spec(start_heartbeat_sender/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). --spec(start_heartbeat_receiver/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). - --spec(start_heartbeat_fun/1 :: - (pid()) -> start_heartbeat_fun()). - - --spec(pause_monitor/1 :: (heartbeaters()) -> 'ok'). --spec(resume_monitor/1 :: (heartbeaters()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_heartbeat_sender(Sock, TimeoutSec, SendFun) -> - %% the 'div 2' is there so that we don't end up waiting for nearly - %% 2 * TimeoutSec before sending a heartbeat in the boundary case - %% where the last message was sent just after a heartbeat. - heartbeater( - {Sock, TimeoutSec * 1000 div 2, send_oct, 0, - fun () -> - SendFun(), - continue - end}). - -start_heartbeat_receiver(Sock, TimeoutSec, ReceiveFun) -> - %% we check for incoming data every interval, and time out after - %% two checks with no change. As a result we will time out between - %% 2 and 3 intervals after the last data has been received. - heartbeater({Sock, TimeoutSec * 1000, recv_oct, 1, fun () -> - ReceiveFun(), - stop - end}). - -start_heartbeat_fun(SupPid) -> - fun (Sock, SendTimeoutSec, SendFun, ReceiveTimeoutSec, ReceiveFun) -> - {ok, Sender} = - start_heartbeater(SendTimeoutSec, SupPid, Sock, - SendFun, heartbeat_sender, - start_heartbeat_sender), - {ok, Receiver} = - start_heartbeater(ReceiveTimeoutSec, SupPid, Sock, - ReceiveFun, heartbeat_receiver, - start_heartbeat_receiver), - {Sender, Receiver} - end. - -pause_monitor({_Sender, none}) -> - ok; -pause_monitor({_Sender, Receiver}) -> - Receiver ! pause, - ok. - -resume_monitor({_Sender, none}) -> - ok; -resume_monitor({_Sender, Receiver}) -> - Receiver ! resume, - ok. - -%%---------------------------------------------------------------------------- -start_heartbeater(0, _SupPid, _Sock, _TimeoutFun, _Name, _Callback) -> - {ok, none}; -start_heartbeater(TimeoutSec, SupPid, Sock, TimeoutFun, Name, Callback) -> - supervisor2:start_child( - SupPid, {Name, - {rabbit_heartbeat, Callback, - [Sock, TimeoutSec, TimeoutFun]}, - transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}). - -heartbeater(Params) -> - {ok, proc_lib:spawn_link(fun () -> heartbeater(Params, {0, 0}) end)}. - -heartbeater({Sock, TimeoutMillisec, StatName, Threshold, Handler} = Params, - {StatVal, SameCount}) -> - Recurse = fun (V) -> heartbeater(Params, V) end, - receive - pause -> - receive - resume -> - Recurse({0, 0}); - Other -> - exit({unexpected_message, Other}) - end; - Other -> - exit({unexpected_message, Other}) - after TimeoutMillisec -> - case rabbit_net:getstat(Sock, [StatName]) of - {ok, [{StatName, NewStatVal}]} -> - if NewStatVal =/= StatVal -> - Recurse({NewStatVal, 0}); - SameCount < Threshold -> - Recurse({NewStatVal, SameCount + 1}); - true -> - case Handler() of - stop -> ok; - continue -> Recurse({NewStatVal, 0}) - end - end; - {error, einval} -> - %% the socket is dead, most likely because the - %% connection is being shut down -> terminate - ok; - {error, Reason} -> - exit({cannot_get_socket_stats, Reason}) - end - end. diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl deleted file mode 100644 index 1b72dd76..00000000 --- a/src/rabbit_limiter.erl +++ /dev/null @@ -1,234 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_limiter). - --behaviour(gen_server2). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, prioritise_call/3]). --export([start_link/2]). --export([limit/2, can_send/3, ack/2, register/2, unregister/2]). --export([get_limit/1, block/1, unblock/1, is_blocked/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(maybe_pid() :: pid() | 'undefined'). - --spec(start_link/2 :: (pid(), non_neg_integer()) -> - rabbit_types:ok_pid_or_error()). --spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok' | 'stopped'). --spec(can_send/3 :: (maybe_pid(), pid(), boolean()) -> boolean()). --spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(get_limit/1 :: (maybe_pid()) -> non_neg_integer()). --spec(block/1 :: (maybe_pid()) -> 'ok'). --spec(unblock/1 :: (maybe_pid()) -> 'ok' | 'stopped'). --spec(is_blocked/1 :: (maybe_pid()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = dict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - -%%---------------------------------------------------------------------------- -%% API -%%---------------------------------------------------------------------------- - -start_link(ChPid, UnackedMsgCount) -> - gen_server2:start_link(?MODULE, [ChPid, UnackedMsgCount], []). - -limit(undefined, 0) -> - ok; -limit(LimiterPid, PrefetchCount) -> - gen_server2:call(LimiterPid, {limit, PrefetchCount}, infinity). - -%% Ask the limiter whether the queue can deliver a message without -%% breaching a limit -can_send(undefined, _QPid, _AckRequired) -> - true; -can_send(LimiterPid, QPid, AckRequired) -> - rabbit_misc:with_exit_handler( - fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, - infinity) end). - -%% Let the limiter know that the channel has received some acks from a -%% consumer -ack(undefined, _Count) -> ok; -ack(LimiterPid, Count) -> gen_server2:cast(LimiterPid, {ack, Count}). - -register(undefined, _QPid) -> ok; -register(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {register, QPid}). - -unregister(undefined, _QPid) -> ok; -unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}). - -get_limit(undefined) -> - 0; -get_limit(Pid) -> - rabbit_misc:with_exit_handler( - fun () -> 0 end, - fun () -> gen_server2:call(Pid, get_limit, infinity) end). - -block(undefined) -> - ok; -block(LimiterPid) -> - gen_server2:call(LimiterPid, block, infinity). - -unblock(undefined) -> - ok; -unblock(LimiterPid) -> - gen_server2:call(LimiterPid, unblock, infinity). - -is_blocked(undefined) -> - false; -is_blocked(LimiterPid) -> - gen_server2:call(LimiterPid, is_blocked, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([ChPid, UnackedMsgCount]) -> - {ok, #lim{ch_pid = ChPid, volume = UnackedMsgCount}}. - -prioritise_call(get_limit, _From, _State) -> 9; -prioritise_call(_Msg, _From, _State) -> 0. - -handle_call({can_send, _QPid, _AckRequired}, _From, - State = #lim{blocked = true}) -> - {reply, false, State}; -handle_call({can_send, QPid, AckRequired}, _From, - State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} - end; - -handle_call(get_limit, _From, State = #lim{prefetch_count = PrefetchCount}) -> - {reply, PrefetchCount, State}; - -handle_call({limit, PrefetchCount}, _From, State) -> - case maybe_notify(State, State#lim{prefetch_count = PrefetchCount}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(block, _From, State) -> - {reply, ok, State#lim{blocked = true}}; - -handle_call(unblock, _From, State) -> - case maybe_notify(State, State#lim{blocked = false}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(is_blocked, _From, State) -> - {reply, blocked(State), State}. - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {cont, State1} = maybe_notify(State, State#lim{volume = NewVolume}), - {noreply, State1}; - -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; - -handle_cast({unregister, QPid}, State) -> - {noreply, forget_queue(QPid, State)}. - -handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> - {noreply, forget_queue(QPid, State)}. - -terminate(_, _) -> - ok. - -code_change(_, State, _) -> - State. - -%%---------------------------------------------------------------------------- -%% Internal plumbing -%%---------------------------------------------------------------------------- - -maybe_notify(OldState, NewState) -> - case (limit_reached(OldState) orelse blocked(OldState)) andalso - not (limit_reached(NewState) orelse blocked(NewState)) of - true -> NewState1 = notify_queues(NewState), - {case NewState1#lim.prefetch_count of - 0 -> stop; - _ -> cont - end, NewState1}; - false -> {cont, NewState} - end. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -blocked(#lim{blocked = Blocked}) -> Blocked. - -remember_queue(QPid, State = #lim{queues = Queues}) -> - case dict:is_key(QPid, Queues) of - false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = dict:store(QPid, {MRef, false}, Queues)}; - true -> State - end. - -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> - case dict:find(QPid, Queues) of - {ok, {MRef, _}} -> - true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), - State#lim{queues = dict:erase(QPid, Queues)}; - error -> State - end. - -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, - State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. - -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - dict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], dict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, - State#lim{queues = NewQueues}. diff --git a/src/rabbit_log.erl b/src/rabbit_log.erl deleted file mode 100644 index 8207d6bc..00000000 --- a/src/rabbit_log.erl +++ /dev/null @@ -1,132 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_log). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([debug/1, debug/2, message/4, info/1, info/2, - warning/1, warning/2, error/1, error/2]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(debug/1 :: (string()) -> 'ok'). --spec(debug/2 :: (string(), [any()]) -> 'ok'). --spec(info/1 :: (string()) -> 'ok'). --spec(info/2 :: (string(), [any()]) -> 'ok'). --spec(warning/1 :: (string()) -> 'ok'). --spec(warning/2 :: (string(), [any()]) -> 'ok'). --spec(error/1 :: (string()) -> 'ok'). --spec(error/2 :: (string(), [any()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -debug(Fmt) -> - gen_server:cast(?SERVER, {debug, Fmt}). - -debug(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {debug, Fmt, Args}). - -message(Direction, Channel, MethodRecord, Content) -> - gen_server:cast(?SERVER, - {message, Direction, Channel, MethodRecord, Content}). - -info(Fmt) -> - gen_server:cast(?SERVER, {info, Fmt}). - -info(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {info, Fmt, Args}). - -warning(Fmt) -> - gen_server:cast(?SERVER, {warning, Fmt}). - -warning(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {warning, Fmt, Args}). - -error(Fmt) -> - gen_server:cast(?SERVER, {error, Fmt}). - -error(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {error, Fmt, Args}). - -%%-------------------------------------------------------------------- - -init([]) -> {ok, none}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({debug, Fmt}, State) -> - io:format("debug:: "), io:format(Fmt), - error_logger:info_msg("debug:: " ++ Fmt), - {noreply, State}; -handle_cast({debug, Fmt, Args}, State) -> - io:format("debug:: "), io:format(Fmt, Args), - error_logger:info_msg("debug:: " ++ Fmt, Args), - {noreply, State}; -handle_cast({message, Direction, Channel, MethodRecord, Content}, State) -> - io:format("~s ch~p ~p~n", - [case Direction of - in -> "-->"; - out -> "<--" end, - Channel, - {MethodRecord, Content}]), - {noreply, State}; -handle_cast({info, Fmt}, State) -> - error_logger:info_msg(Fmt), - {noreply, State}; -handle_cast({info, Fmt, Args}, State) -> - error_logger:info_msg(Fmt, Args), - {noreply, State}; -handle_cast({warning, Fmt}, State) -> - error_logger:warning_msg(Fmt), - {noreply, State}; -handle_cast({warning, Fmt, Args}, State) -> - error_logger:warning_msg(Fmt, Args), - {noreply, State}; -handle_cast({error, Fmt}, State) -> - error_logger:error_msg(Fmt), - {noreply, State}; -handle_cast({error, Fmt, Args}, State) -> - error_logger:error_msg(Fmt, Args), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl deleted file mode 100644 index 2f8c940b..00000000 --- a/src/rabbit_memory_monitor.erl +++ /dev/null @@ -1,280 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - -%% This module handles the node-wide memory statistics. -%% It receives statistics from all queues, counts the desired -%% queue length (in seconds), and sends this information back to -%% queues. - --module(rabbit_memory_monitor). - --behaviour(gen_server2). - --export([start_link/0, update/0, register/2, deregister/1, - report_ram_duration/2, stop/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(process, {pid, reported, sent, callback, monitor}). - --record(state, {timer, %% 'internal_update' timer - queue_durations, %% ets #process - queue_duration_sum, %% sum of all queue_durations - queue_duration_count, %% number of elements in sum - memory_limit, %% how much memory we intend to use - desired_duration %% the desired queue duration - }). - --define(SERVER, ?MODULE). --define(DEFAULT_UPDATE_INTERVAL, 2500). --define(TABLE_NAME, ?MODULE). - -%% Because we have a feedback loop here, we need to ensure that we -%% have some space for when the queues don't quite respond as fast as -%% we would like, or when there is buffering going on in other parts -%% of the system. In short, we aim to stay some distance away from -%% when the memory alarms will go off, which cause backpressure (of -%% some sort) on producers. Note that all other Thresholds are -%% relative to this scaling. --define(MEMORY_LIMIT_SCALING, 0.4). - --define(LIMIT_THRESHOLD, 0.5). %% don't limit queues when mem use is < this - -%% If all queues are pushed to disk (duration 0), then the sum of -%% their reported lengths will be 0. If memory then becomes available, -%% unless we manually intervene, the sum will remain 0, and the queues -%% will never get a non-zero duration. Thus when the mem use is < -%% SUM_INC_THRESHOLD, increase the sum artificially by SUM_INC_AMOUNT. --define(SUM_INC_THRESHOLD, 0.95). --define(SUM_INC_AMOUNT, 1.0). - -%% If user disabled vm_memory_monitor, let's assume 1GB of memory we can use. --define(MEMORY_SIZE_FOR_DISABLED_VMM, 1073741824). - --define(EPSILON, 0.000001). %% less than this and we clamp to 0 - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(update/0 :: () -> 'ok'). --spec(register/2 :: (pid(), {atom(),atom(),[any()]}) -> 'ok'). --spec(deregister/1 :: (pid()) -> 'ok'). --spec(report_ram_duration/2 :: - (pid(), float() | 'infinity') -> number() | 'infinity'). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -update() -> - gen_server2:cast(?SERVER, update). - -register(Pid, MFA = {_M, _F, _A}) -> - gen_server2:call(?SERVER, {register, Pid, MFA}, infinity). - -deregister(Pid) -> - gen_server2:cast(?SERVER, {deregister, Pid}). - -report_ram_duration(Pid, QueueDuration) -> - gen_server2:call(?SERVER, - {report_ram_duration, Pid, QueueDuration}, infinity). - -stop() -> - gen_server2:cast(?SERVER, stop). - -%%---------------------------------------------------------------------------- -%% Gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - MemoryLimit = trunc(?MEMORY_LIMIT_SCALING * - (try - vm_memory_monitor:get_memory_limit() - catch - exit:{noproc, _} -> ?MEMORY_SIZE_FOR_DISABLED_VMM - end)), - - {ok, TRef} = timer:apply_interval(?DEFAULT_UPDATE_INTERVAL, - ?SERVER, update, []), - - Ets = ets:new(?TABLE_NAME, [set, private, {keypos, #process.pid}]), - - {ok, internal_update( - #state { timer = TRef, - queue_durations = Ets, - queue_duration_sum = 0.0, - queue_duration_count = 0, - memory_limit = MemoryLimit, - desired_duration = infinity })}. - -handle_call({report_ram_duration, Pid, QueueDuration}, From, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations, - desired_duration = SendDuration }) -> - - [Proc = #process { reported = PrevQueueDuration }] = - ets:lookup(Durations, Pid), - - gen_server2:reply(From, SendDuration), - - {Sum1, Count1} = - case {PrevQueueDuration, QueueDuration} of - {infinity, infinity} -> {Sum, Count}; - {infinity, _} -> {Sum + QueueDuration, Count + 1}; - {_, infinity} -> {Sum - PrevQueueDuration, Count - 1}; - {_, _} -> {Sum - PrevQueueDuration + QueueDuration, - Count} - end, - true = ets:insert(Durations, Proc #process { reported = QueueDuration, - sent = SendDuration }), - {noreply, State #state { queue_duration_sum = zero_clamp(Sum1), - queue_duration_count = Count1 }}; - -handle_call({register, Pid, MFA}, _From, - State = #state { queue_durations = Durations }) -> - MRef = erlang:monitor(process, Pid), - true = ets:insert(Durations, #process { pid = Pid, reported = infinity, - sent = infinity, callback = MFA, - monitor = MRef }), - {reply, ok, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast({deregister, Pid}, State) -> - {noreply, internal_deregister(Pid, true, State)}; - -handle_cast(stop, State) -> - {stop, normal, State}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, State) -> - {noreply, internal_deregister(Pid, false, State)}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state { timer = TRef }) -> - timer:cancel(TRef), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -zero_clamp(Sum) -> - case Sum < ?EPSILON of - true -> 0.0; - false -> Sum - end. - -internal_deregister(Pid, Demonitor, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations }) -> - case ets:lookup(Durations, Pid) of - [] -> State; - [#process { reported = PrevQueueDuration, monitor = MRef }] -> - true = case Demonitor of - true -> erlang:demonitor(MRef); - false -> true - end, - {Sum1, Count1} = - case PrevQueueDuration of - infinity -> {Sum, Count}; - _ -> {zero_clamp(Sum - PrevQueueDuration), - Count - 1} - end, - true = ets:delete(Durations, Pid), - State #state { queue_duration_sum = Sum1, - queue_duration_count = Count1 } - end. - -internal_update(State = #state { memory_limit = Limit, - queue_durations = Durations, - desired_duration = DesiredDurationAvg, - queue_duration_sum = Sum, - queue_duration_count = Count }) -> - MemoryRatio = erlang:memory(total) / Limit, - DesiredDurationAvg1 = - case MemoryRatio < ?LIMIT_THRESHOLD orelse Count == 0 of - true -> - infinity; - false -> - Sum1 = case MemoryRatio < ?SUM_INC_THRESHOLD of - true -> Sum + ?SUM_INC_AMOUNT; - false -> Sum - end, - (Sum1 / Count) / MemoryRatio - end, - State1 = State #state { desired_duration = DesiredDurationAvg1 }, - - %% only inform queues immediately if the desired duration has - %% decreased - case DesiredDurationAvg1 == infinity orelse - (DesiredDurationAvg /= infinity andalso - DesiredDurationAvg1 >= DesiredDurationAvg) of - true -> - ok; - false -> - true = - ets:foldl( - fun (Proc = #process { reported = QueueDuration, - sent = PrevSendDuration, - callback = {M, F, A} }, true) -> - case (case {QueueDuration, PrevSendDuration} of - {infinity, infinity} -> - true; - {infinity, D} -> - DesiredDurationAvg1 < D; - {D, infinity} -> - DesiredDurationAvg1 < D; - {D1, D2} -> - DesiredDurationAvg1 < - lists:min([D1,D2]) - end) of - true -> - ok = erlang:apply( - M, F, A ++ [DesiredDurationAvg1]), - ets:insert( - Durations, - Proc #process {sent = DesiredDurationAvg1}); - false -> - true - end - end, true, Durations) - end, - State1. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl deleted file mode 100644 index abc27c5f..00000000 --- a/src/rabbit_misc.erl +++ /dev/null @@ -1,874 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_misc). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --include_lib("kernel/include/file.hrl"). - --export([method_record_type/1, polite_pause/0, polite_pause/1]). --export([die/1, frame_error/2, amqp_error/4, - protocol_error/3, protocol_error/4, protocol_error/1]). --export([not_found/1, assert_args_equivalence/4]). --export([dirty_read/1]). --export([table_lookup/2]). --export([r/3, r/2, r_arg/4, rs/1]). --export([enable_cover/0, report_cover/0]). --export([enable_cover/1, report_cover/1]). --export([start_cover/1]). --export([throw_on_error/2, with_exit_handler/2, filter_exit_map/2]). --export([with_user/2, with_user_and_vhost/3]). --export([execute_mnesia_transaction/1]). --export([execute_mnesia_transaction/2]). --export([execute_mnesia_tx_with_tail/1]). --export([ensure_ok/2]). --export([makenode/1, nodeparts/1, cookie_hash/0, tcp_name/3]). --export([upmap/2, map_in_order/2]). --export([table_fold/3]). --export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). --export([read_term_file/1, write_term_file/2]). --export([append_file/2, ensure_parent_dirs_exist/1]). --export([format_stderr/2]). --export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, queue_fold/3]). --export([sort_field_table/1]). --export([pid_to_string/1, string_to_pid/1]). --export([version_compare/2, version_compare/3]). --export([recursive_delete/1, recursive_copy/2, dict_cons/3, orddict_cons/3, - unlink_and_capture_exit/1]). --export([get_options/2]). --export([all_module_attributes/1, build_acyclic_graph/3]). --export([now_ms/0]). --export([lock_file/1]). --export([const_ok/1, const/1]). --export([ntoa/1, ntoab/1]). --export([is_process_alive/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([resource_name/0, thunk/1, const/1]). - --type(ok_or_error() :: rabbit_types:ok_or_error(any())). --type(thunk(T) :: fun(() -> T)). --type(const(T) :: fun((any()) -> T)). --type(resource_name() :: binary()). --type(optdef() :: {flag, string()} | {option, string(), any()}). --type(channel_or_connection_exit() - :: rabbit_types:channel_exit() | rabbit_types:connection_exit()). --type(digraph_label() :: term()). --type(graph_vertex_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph_label()}])). --type(graph_edge_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph:vertex()}])). - --spec(method_record_type/1 :: (rabbit_framing:amqp_method_record()) - -> rabbit_framing:amqp_method_name()). --spec(polite_pause/0 :: () -> 'done'). --spec(polite_pause/1 :: (non_neg_integer()) -> 'done'). --spec(die/1 :: - (rabbit_framing:amqp_exception()) -> channel_or_connection_exit()). --spec(frame_error/2 :: (rabbit_framing:amqp_method_name(), binary()) - -> rabbit_types:connection_exit()). --spec(amqp_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) - -> rabbit_types:amqp_error()). --spec(protocol_error/3 :: (rabbit_framing:amqp_exception(), string(), [any()]) - -> channel_or_connection_exit()). --spec(protocol_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) -> channel_or_connection_exit()). --spec(protocol_error/1 :: - (rabbit_types:amqp_error()) -> channel_or_connection_exit()). --spec(not_found/1 :: (rabbit_types:r(atom())) -> rabbit_types:channel_exit()). --spec(assert_args_equivalence/4 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table(), - rabbit_types:r(any()), [binary()]) -> - 'ok' | rabbit_types:connection_exit()). --spec(dirty_read/1 :: - ({atom(), any()}) -> rabbit_types:ok_or_error2(any(), 'not_found')). --spec(table_lookup/2 :: - (rabbit_framing:amqp_table(), binary()) - -> 'undefined' | {rabbit_framing:amqp_field_type(), any()}). --spec(r/2 :: (rabbit_types:vhost(), K) - -> rabbit_types:r3(rabbit_types:vhost(), K, '_') - when is_subtype(K, atom())). --spec(r/3 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, resource_name()) - -> rabbit_types:r3(rabbit_types:vhost(), K, resource_name()) - when is_subtype(K, atom())). --spec(r_arg/4 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, - rabbit_framing:amqp_table(), binary()) - -> undefined | rabbit_types:r(K) - when is_subtype(K, atom())). --spec(rs/1 :: (rabbit_types:r(atom())) -> string()). --spec(enable_cover/0 :: () -> ok_or_error()). --spec(start_cover/1 :: ([{string(), string()} | string()]) -> 'ok'). --spec(report_cover/0 :: () -> 'ok'). --spec(enable_cover/1 :: ([file:filename() | atom()]) -> ok_or_error()). --spec(report_cover/1 :: ([file:filename() | atom()]) -> 'ok'). --spec(throw_on_error/2 :: - (atom(), thunk(rabbit_types:error(any()) | {ok, A} | A)) -> A). --spec(with_exit_handler/2 :: (thunk(A), thunk(A)) -> A). --spec(filter_exit_map/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(with_user/2 :: (rabbit_types:username(), thunk(A)) -> A). --spec(with_user_and_vhost/3 :: - (rabbit_types:username(), rabbit_types:vhost(), thunk(A)) - -> A). --spec(execute_mnesia_transaction/1 :: (thunk(A)) -> A). --spec(execute_mnesia_transaction/2 :: - (thunk(A), fun ((A, boolean()) -> B)) -> B). --spec(execute_mnesia_tx_with_tail/1 :: - (thunk(fun ((boolean()) -> B))) -> B | (fun ((boolean()) -> B))). --spec(ensure_ok/2 :: (ok_or_error(), atom()) -> 'ok'). --spec(makenode/1 :: ({string(), string()} | string()) -> node()). --spec(nodeparts/1 :: (node() | string()) -> {string(), string()}). --spec(cookie_hash/0 :: () -> string()). --spec(tcp_name/3 :: - (atom(), inet:ip_address(), rabbit_networking:ip_port()) - -> atom()). --spec(upmap/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(map_in_order/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(table_fold/3 :: (fun ((any(), A) -> A), A, atom()) -> A). --spec(dirty_read_all/1 :: (atom()) -> [any()]). --spec(dirty_foreach_key/2 :: (fun ((any()) -> any()), atom()) - -> 'ok' | 'aborted'). --spec(dirty_dump_log/1 :: (file:filename()) -> ok_or_error()). --spec(read_term_file/1 :: - (file:filename()) -> {'ok', [any()]} | rabbit_types:error(any())). --spec(write_term_file/2 :: (file:filename(), [any()]) -> ok_or_error()). --spec(append_file/2 :: (file:filename(), string()) -> ok_or_error()). --spec(ensure_parent_dirs_exist/1 :: (string()) -> 'ok'). --spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). --spec(start_applications/1 :: ([atom()]) -> 'ok'). --spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> integer()). --spec(queue_fold/3 :: (fun ((any(), B) -> B), B, queue()) -> B). --spec(sort_field_table/1 :: - (rabbit_framing:amqp_table()) -> rabbit_framing:amqp_table()). --spec(pid_to_string/1 :: (pid()) -> string()). --spec(string_to_pid/1 :: (string()) -> pid()). --spec(version_compare/2 :: (string(), string()) -> 'lt' | 'eq' | 'gt'). --spec(version_compare/3 :: - (string(), string(), ('lt' | 'lte' | 'eq' | 'gte' | 'gt')) - -> boolean()). --spec(recursive_delete/1 :: - ([file:filename()]) - -> rabbit_types:ok_or_error({file:filename(), any()})). --spec(recursive_copy/2 :: - (file:filename(), file:filename()) - -> rabbit_types:ok_or_error({file:filename(), file:filename(), any()})). --spec(dict_cons/3 :: (any(), any(), dict()) -> dict()). --spec(orddict_cons/3 :: (any(), any(), orddict:orddict()) -> orddict:orddict()). --spec(unlink_and_capture_exit/1 :: (pid()) -> 'ok'). --spec(get_options/2 :: ([optdef()], [string()]) - -> {[string()], [{string(), any()}]}). --spec(all_module_attributes/1 :: (atom()) -> [{atom(), [term()]}]). --spec(build_acyclic_graph/3 :: - (graph_vertex_fun(), graph_edge_fun(), [{atom(), [term()]}]) - -> rabbit_types:ok_or_error2(digraph(), - {'vertex', 'duplicate', digraph:vertex()} | - {'edge', ({bad_vertex, digraph:vertex()} | - {bad_edge, [digraph:vertex()]}), - digraph:vertex(), digraph:vertex()})). --spec(now_ms/0 :: () -> non_neg_integer()). --spec(lock_file/1 :: (file:filename()) -> rabbit_types:ok_or_error('eexist')). --spec(const_ok/1 :: (any()) -> 'ok'). --spec(const/1 :: (A) -> const(A)). --spec(ntoa/1 :: (inet:ip_address()) -> string()). --spec(ntoab/1 :: (inet:ip_address()) -> string()). --spec(is_process_alive/1 :: (pid()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - -method_record_type(Record) -> - element(1, Record). - -polite_pause() -> - polite_pause(3000). - -polite_pause(N) -> - receive - after N -> done - end. - -die(Error) -> - protocol_error(Error, "~w", [Error]). - -frame_error(MethodName, BinaryFields) -> - protocol_error(frame_error, "cannot decode ~w", [BinaryFields], MethodName). - -amqp_error(Name, ExplanationFormat, Params, Method) -> - Explanation = lists:flatten(io_lib:format(ExplanationFormat, Params)), - #amqp_error{name = Name, explanation = Explanation, method = Method}. - -protocol_error(Name, ExplanationFormat, Params) -> - protocol_error(Name, ExplanationFormat, Params, none). - -protocol_error(Name, ExplanationFormat, Params, Method) -> - protocol_error(amqp_error(Name, ExplanationFormat, Params, Method)). - -protocol_error(#amqp_error{} = Error) -> - exit(Error). - -not_found(R) -> protocol_error(not_found, "no ~s", [rs(R)]). - -assert_args_equivalence(Orig, New, Name, Keys) -> - [assert_args_equivalence1(Orig, New, Name, Key) || Key <- Keys], - ok. - -assert_args_equivalence1(Orig, New, Name, Key) -> - case {table_lookup(Orig, Key), table_lookup(New, Key)} of - {Same, Same} -> ok; - {Orig1, New1} -> protocol_error( - precondition_failed, - "inequivalent arg '~s' for ~s: " - "received ~s but current is ~s", - [Key, rs(Name), val(New1), val(Orig1)]) - end. - -val(undefined) -> - "none"; -val({Type, Value}) -> - Fmt = case is_binary(Value) of - true -> "the value '~s' of type '~s'"; - false -> "the value '~w' of type '~s'" - end, - lists:flatten(io_lib:format(Fmt, [Value, Type])). - -dirty_read(ReadSpec) -> - case mnesia:dirty_read(ReadSpec) of - [Result] -> {ok, Result}; - [] -> {error, not_found} - end. - -table_lookup(Table, Key) -> - case lists:keysearch(Key, 1, Table) of - {value, {_, TypeBin, ValueBin}} -> {TypeBin, ValueBin}; - false -> undefined - end. - -r(#resource{virtual_host = VHostPath}, Kind, Name) - when is_binary(Name) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}; -r(VHostPath, Kind, Name) when is_binary(Name) andalso is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}. - -r(VHostPath, Kind) when is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = '_'}. - -r_arg(#resource{virtual_host = VHostPath}, Kind, Table, Key) -> - r_arg(VHostPath, Kind, Table, Key); -r_arg(VHostPath, Kind, Table, Key) -> - case table_lookup(Table, Key) of - {longstr, NameBin} -> r(VHostPath, Kind, NameBin); - undefined -> undefined - end. - -rs(#resource{virtual_host = VHostPath, kind = Kind, name = Name}) -> - lists:flatten(io_lib:format("~s '~s' in vhost '~s'", - [Kind, Name, VHostPath])). - -enable_cover() -> enable_cover(["."]). - -enable_cover(Dirs) -> - lists:foldl(fun (Dir, ok) -> - case cover:compile_beam_directory( - filename:join(lists:concat([Dir]),"ebin")) of - {error, _} = Err -> Err; - _ -> ok - end; - (_Dir, Err) -> - Err - end, ok, Dirs). - -start_cover(NodesS) -> - {ok, _} = cover:start([makenode(N) || N <- NodesS]), - ok. - -report_cover() -> report_cover(["."]). - -report_cover(Dirs) -> [report_cover1(lists:concat([Dir])) || Dir <- Dirs], ok. - -report_cover1(Root) -> - Dir = filename:join(Root, "cover"), - ok = filelib:ensure_dir(filename:join(Dir, "junk")), - lists:foreach(fun (F) -> file:delete(F) end, - filelib:wildcard(filename:join(Dir, "*.html"))), - {ok, SummaryFile} = file:open(filename:join(Dir, "summary.txt"), [write]), - {CT, NCT} = - lists:foldl( - fun (M,{CovTot, NotCovTot}) -> - {ok, {M, {Cov, NotCov}}} = cover:analyze(M, module), - ok = report_coverage_percentage(SummaryFile, - Cov, NotCov, M), - {ok,_} = cover:analyze_to_file( - M, - filename:join(Dir, atom_to_list(M) ++ ".html"), - [html]), - {CovTot+Cov, NotCovTot+NotCov} - end, - {0, 0}, - lists:sort(cover:modules())), - ok = report_coverage_percentage(SummaryFile, CT, NCT, 'TOTAL'), - ok = file:close(SummaryFile), - ok. - -report_coverage_percentage(File, Cov, NotCov, Mod) -> - io:fwrite(File, "~6.2f ~p~n", - [if - Cov+NotCov > 0 -> 100.0*Cov/(Cov+NotCov); - true -> 100.0 - end, - Mod]). - -throw_on_error(E, Thunk) -> - case Thunk() of - {error, Reason} -> throw({E, Reason}); - {ok, Res} -> Res; - Res -> Res - end. - -with_exit_handler(Handler, Thunk) -> - try - Thunk() - catch - exit:{R, _} when R =:= noproc; R =:= nodedown; - R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - Handler() - end. - -filter_exit_map(F, L) -> - Ref = make_ref(), - lists:filter(fun (R) -> R =/= Ref end, - [with_exit_handler( - fun () -> Ref end, - fun () -> F(I) end) || I <- L]). - -with_user(Username, Thunk) -> - fun () -> - case mnesia:read({rabbit_user, Username}) of - [] -> - mnesia:abort({no_such_user, Username}); - [_U] -> - Thunk() - end - end. - -with_user_and_vhost(Username, VHostPath, Thunk) -> - with_user(Username, rabbit_vhost:with(VHostPath, Thunk)). - -execute_mnesia_transaction(TxFun) -> - %% Making this a sync_transaction allows us to use dirty_read - %% elsewhere and get a consistent result even when that read - %% executes on a different node. - case worker_pool:submit({mnesia, sync_transaction, [TxFun]}) of - {atomic, Result} -> Result; - {aborted, Reason} -> throw({error, Reason}) - end. - - -%% Like execute_mnesia_transaction/1 with additional Pre- and Post- -%% commit function -execute_mnesia_transaction(TxFun, PrePostCommitFun) -> - case mnesia:is_transaction() of - true -> throw(unexpected_transaction); - false -> ok - end, - PrePostCommitFun(execute_mnesia_transaction( - fun () -> - Result = TxFun(), - PrePostCommitFun(Result, true), - Result - end), false). - -%% Like execute_mnesia_transaction/2, but TxFun is expected to return a -%% TailFun which gets called immediately before and after the tx commit -execute_mnesia_tx_with_tail(TxFun) -> - case mnesia:is_transaction() of - true -> execute_mnesia_transaction(TxFun); - false -> TailFun = execute_mnesia_transaction( - fun () -> - TailFun1 = TxFun(), - TailFun1(true), - TailFun1 - end), - TailFun(false) - end. - -ensure_ok(ok, _) -> ok; -ensure_ok({error, Reason}, ErrorTag) -> throw({error, {ErrorTag, Reason}}). - -makenode({Prefix, Suffix}) -> - list_to_atom(lists:append([Prefix, "@", Suffix])); -makenode(NodeStr) -> - makenode(nodeparts(NodeStr)). - -nodeparts(Node) when is_atom(Node) -> - nodeparts(atom_to_list(Node)); -nodeparts(NodeStr) -> - case lists:splitwith(fun (E) -> E =/= $@ end, NodeStr) of - {Prefix, []} -> {_, Suffix} = nodeparts(node()), - {Prefix, Suffix}; - {Prefix, Suffix} -> {Prefix, tl(Suffix)} - end. - -cookie_hash() -> - base64:encode_to_string(erlang:md5(atom_to_list(erlang:get_cookie()))). - -tcp_name(Prefix, IPAddress, Port) - when is_atom(Prefix) andalso is_number(Port) -> - list_to_atom( - lists:flatten( - io_lib:format("~w_~s:~w", - [Prefix, inet_parse:ntoa(IPAddress), Port]))). - -%% This is a modified version of Luke Gorrie's pmap - -%% http://lukego.livejournal.com/6753.html - that doesn't care about -%% the order in which results are received. -%% -%% WARNING: This is is deliberately lightweight rather than robust -- if F -%% throws, upmap will hang forever, so make sure F doesn't throw! -upmap(F, L) -> - Parent = self(), - Ref = make_ref(), - [receive {Ref, Result} -> Result end - || _ <- [spawn(fun () -> Parent ! {Ref, F(X)} end) || X <- L]]. - -map_in_order(F, L) -> - lists:reverse( - lists:foldl(fun (E, Acc) -> [F(E) | Acc] end, [], L)). - -%% Fold over each entry in a table, executing the cons function in a -%% transaction. This is often far more efficient than wrapping a tx -%% around the lot. -%% -%% We ignore entries that have been modified or removed. -table_fold(F, Acc0, TableName) -> - lists:foldl( - fun (E, Acc) -> execute_mnesia_transaction( - fun () -> case mnesia:match_object(TableName, E, read) of - [] -> Acc; - _ -> F(E, Acc) - end - end) - end, Acc0, dirty_read_all(TableName)). - -dirty_read_all(TableName) -> - mnesia:dirty_select(TableName, [{'$1',[],['$1']}]). - -dirty_foreach_key(F, TableName) -> - dirty_foreach_key1(F, TableName, mnesia:dirty_first(TableName)). - -dirty_foreach_key1(_F, _TableName, '$end_of_table') -> - ok; -dirty_foreach_key1(F, TableName, K) -> - case catch mnesia:dirty_next(TableName, K) of - {'EXIT', _} -> - aborted; - NextKey -> - F(K), - dirty_foreach_key1(F, TableName, NextKey) - end. - -dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, - {mode, read_only}, - {file, FileName}]), - dirty_dump_log1(LH, disk_log:chunk(LH, start)), - disk_log:close(LH). - -dirty_dump_log1(_LH, eof) -> - io:format("Done.~n"); -dirty_dump_log1(LH, {K, Terms}) -> - io:format("Chunk: ~p~n", [Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)); -dirty_dump_log1(LH, {K, Terms, BadBytes}) -> - io:format("Bad Chunk, ~p: ~p~n", [BadBytes, Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)). - - -read_term_file(File) -> file:consult(File). - -write_term_file(File, Terms) -> - file:write_file(File, list_to_binary([io_lib:format("~w.~n", [Term]) || - Term <- Terms])). - -append_file(File, Suffix) -> - case file:read_file_info(File) of - {ok, FInfo} -> append_file(File, FInfo#file_info.size, Suffix); - {error, enoent} -> append_file(File, 0, Suffix); - Error -> Error - end. - -append_file(_, _, "") -> - ok; -append_file(File, 0, Suffix) -> - case file:open([File, Suffix], [append]) of - {ok, Fd} -> file:close(Fd); - Error -> Error - end; -append_file(File, _, Suffix) -> - case file:read_file(File) of - {ok, Data} -> file:write_file([File, Suffix], Data, [append]); - Error -> Error - end. - -ensure_parent_dirs_exist(Filename) -> - case filelib:ensure_dir(Filename) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_parent_dirs, Filename, Reason}}) - end. - -format_stderr(Fmt, Args) -> - case os:type() of - {unix, _} -> - Port = open_port({fd, 0, 2}, [out]), - port_command(Port, io_lib:format(Fmt, Args)), - port_close(Port); - {win32, _} -> - %% stderr on Windows is buffered and I can't figure out a - %% way to trigger a fflush(stderr) in Erlang. So rather - %% than risk losing output we write to stdout instead, - %% which appears to be unbuffered. - io:format(Fmt, Args) - end, - ok. - -manage_applications(Iterate, Do, Undo, SkipError, ErrorTag, Apps) -> - Iterate(fun (App, Acc) -> - case Do(App) of - ok -> [App | Acc]; - {error, {SkipError, _}} -> Acc; - {error, Reason} -> - lists:foreach(Undo, Acc), - throw({error, {ErrorTag, App, Reason}}) - end - end, [], Apps), - ok. - -start_applications(Apps) -> - manage_applications(fun lists:foldl/3, - fun application:start/1, - fun application:stop/1, - already_started, - cannot_start_application, - Apps). - -stop_applications(Apps) -> - manage_applications(fun lists:foldr/3, - fun application:stop/1, - fun application:start/1, - not_started, - cannot_stop_application, - Apps). - -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N == T of - true -> T; - false -> 1 + T - end. - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -%% Sorts a list of AMQP table fields as per the AMQP spec -sort_field_table(Arguments) -> - lists:keysort(1, Arguments). - -%% This provides a string representation of a pid that is the same -%% regardless of what node we are running on. The representation also -%% permits easy identification of the pid's node. -pid_to_string(Pid) when is_pid(Pid) -> - %% see http://erlang.org/doc/apps/erts/erl_ext_dist.html (8.10 and - %% 8.7) - <<131,103,100,NodeLen:16,NodeBin:NodeLen/binary,Id:32,Ser:32,Cre:8>> - = term_to_binary(Pid), - Node = binary_to_term(<<131,100,NodeLen:16,NodeBin:NodeLen/binary>>), - lists:flatten(io_lib:format("<~w.~B.~B.~B>", [Node, Cre, Id, Ser])). - -%% inverse of above -string_to_pid(Str) -> - Err = {error, {invalid_pid_syntax, Str}}, - %% The \ before the trailing $ is only there to keep emacs - %% font-lock from getting confused. - case re:run(Str, "^<(.*)\\.(\\d+)\\.(\\d+)\\.(\\d+)>\$", - [{capture,all_but_first,list}]) of - {match, [NodeStr, CreStr, IdStr, SerStr]} -> - %% the NodeStr atom might be quoted, so we have to parse - %% it rather than doing a simple list_to_atom - NodeAtom = case erl_scan:string(NodeStr) of - {ok, [{atom, _, X}], _} -> X; - {error, _, _} -> throw(Err) - end, - <<131,NodeEnc/binary>> = term_to_binary(NodeAtom), - [Cre, Id, Ser] = lists:map(fun list_to_integer/1, - [CreStr, IdStr, SerStr]), - binary_to_term(<<131,103,NodeEnc/binary,Id:32,Ser:32,Cre:8>>); - nomatch -> - throw(Err) - end. - -version_compare(A, B, lte) -> - case version_compare(A, B) of - eq -> true; - lt -> true; - gt -> false - end; -version_compare(A, B, gte) -> - case version_compare(A, B) of - eq -> true; - gt -> true; - lt -> false - end; -version_compare(A, B, Result) -> - Result =:= version_compare(A, B). - -version_compare(A, A) -> - eq; -version_compare([], [$0 | B]) -> - version_compare([], dropdot(B)); -version_compare([], _) -> - lt; %% 2.3 < 2.3.1 -version_compare([$0 | A], []) -> - version_compare(dropdot(A), []); -version_compare(_, []) -> - gt; %% 2.3.1 > 2.3 -version_compare(A, B) -> - {AStr, ATl} = lists:splitwith(fun (X) -> X =/= $. end, A), - {BStr, BTl} = lists:splitwith(fun (X) -> X =/= $. end, B), - ANum = list_to_integer(AStr), - BNum = list_to_integer(BStr), - if ANum =:= BNum -> version_compare(dropdot(ATl), dropdot(BTl)); - ANum < BNum -> lt; - ANum > BNum -> gt - end. - -dropdot(A) -> lists:dropwhile(fun (X) -> X =:= $. end, A). - -recursive_delete(Files) -> - lists:foldl(fun (Path, ok ) -> recursive_delete1(Path); - (_Path, {error, _Err} = Error) -> Error - end, ok, Files). - -recursive_delete1(Path) -> - case filelib:is_dir(Path) of - false -> case file:delete(Path) of - ok -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Path, Err}} - end; - true -> case file:list_dir(Path) of - {ok, FileNames} -> - case lists:foldl( - fun (FileName, ok) -> - recursive_delete1( - filename:join(Path, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames) of - ok -> - case file:del_dir(Path) of - ok -> ok; - {error, Err} -> {error, {Path, Err}} - end; - {error, _Err} = Error -> - Error - end; - {error, Err} -> - {error, {Path, Err}} - end - end. - -recursive_copy(Src, Dest) -> - case filelib:is_dir(Src) of - false -> case file:copy(Src, Dest) of - {ok, _Bytes} -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Src, Dest, Err}} - end; - true -> case file:list_dir(Src) of - {ok, FileNames} -> - case file:make_dir(Dest) of - ok -> - lists:foldl( - fun (FileName, ok) -> - recursive_copy( - filename:join(Src, FileName), - filename:join(Dest, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames); - {error, Err} -> - {error, {Src, Dest, Err}} - end; - {error, Err} -> - {error, {Src, Dest, Err}} - end - end. - -dict_cons(Key, Value, Dict) -> - dict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -orddict_cons(Key, Value, Dict) -> - orddict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -unlink_and_capture_exit(Pid) -> - unlink(Pid), - receive {'EXIT', Pid, _} -> ok - after 0 -> ok - end. - -% Separate flags and options from arguments. -% get_options([{flag, "-q"}, {option, "-p", "/"}], -% ["set_permissions","-p","/","guest", -% "-q",".*",".*",".*"]) -% == {["set_permissions","guest",".*",".*",".*"], -% [{"-q",true},{"-p","/"}]} -get_options(Defs, As) -> - lists:foldl(fun(Def, {AsIn, RsIn}) -> - {AsOut, Value} = case Def of - {flag, Key} -> - get_flag(Key, AsIn); - {option, Key, Default} -> - get_option(Key, Default, AsIn) - end, - {AsOut, [{Key, Value} | RsIn]} - end, {As, []}, Defs). - -get_option(K, _Default, [K, V | As]) -> - {As, V}; -get_option(K, Default, [Nk | As]) -> - {As1, V} = get_option(K, Default, As), - {[Nk | As1], V}; -get_option(_, Default, As) -> - {As, Default}. - -get_flag(K, [K | As]) -> - {As, true}; -get_flag(K, [Nk | As]) -> - {As1, V} = get_flag(K, As), - {[Nk | As1], V}; -get_flag(_, []) -> - {[], false}. - -now_ms() -> - timer:now_diff(now(), {0,0,0}) div 1000. - -module_attributes(Module) -> - case catch Module:module_info(attributes) of - {'EXIT', {undef, [{Module, module_info, _} | _]}} -> - io:format("WARNING: module ~p not found, so not scanned for boot steps.~n", - [Module]), - []; - {'EXIT', Reason} -> - exit(Reason); - V -> - V - end. - -all_module_attributes(Name) -> - Modules = - lists:usort( - lists:append( - [Modules || {App, _, _} <- application:loaded_applications(), - {ok, Modules} <- [application:get_key(App, modules)]])), - lists:foldl( - fun (Module, Acc) -> - case lists:append([Atts || {N, Atts} <- module_attributes(Module), - N =:= Name]) of - [] -> Acc; - Atts -> [{Module, Atts} | Acc] - end - end, [], Modules). - - -build_acyclic_graph(VertexFun, EdgeFun, Graph) -> - G = digraph:new([acyclic]), - try - [case digraph:vertex(G, Vertex) of - false -> digraph:add_vertex(G, Vertex, Label); - _ -> ok = throw({graph_error, {vertex, duplicate, Vertex}}) - end || {Module, Atts} <- Graph, - {Vertex, Label} <- VertexFun(Module, Atts)], - [case digraph:add_edge(G, From, To) of - {error, E} -> throw({graph_error, {edge, E, From, To}}); - _ -> ok - end || {Module, Atts} <- Graph, - {From, To} <- EdgeFun(Module, Atts)], - {ok, G} - catch {graph_error, Reason} -> - true = digraph:delete(G), - {error, Reason} - end. - -%% TODO: When we stop supporting Erlang prior to R14, this should be -%% replaced with file:open [write, exclusive] -lock_file(Path) -> - case filelib:is_file(Path) of - true -> {error, eexist}; - false -> {ok, Lock} = file:open(Path, [write]), - ok = file:close(Lock) - end. - -const_ok(_) -> ok. -const(X) -> fun (_) -> X end. - -%% Format IPv4-mapped IPv6 addresses as IPv4, since they're what we see -%% when IPv6 is enabled but not used (i.e. 99% of the time). -ntoa({0,0,0,0,0,16#ffff,AB,CD}) -> - inet_parse:ntoa({AB bsr 8, AB rem 256, CD bsr 8, CD rem 256}); -ntoa(IP) -> - inet_parse:ntoa(IP). - -ntoab(IP) -> - Str = ntoa(IP), - case string:str(Str, ":") of - 0 -> Str; - _ -> "[" ++ Str ++ "]" - end. - -is_process_alive(Pid) when node(Pid) =:= node() -> - erlang:is_process_alive(Pid); -is_process_alive(Pid) -> - case rpc:call(node(Pid), erlang, is_process_alive, [Pid]) of - true -> true; - _ -> false - end. - diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl deleted file mode 100644 index fc95b77b..00000000 --- a/src/rabbit_mnesia.erl +++ /dev/null @@ -1,609 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - --module(rabbit_mnesia). - --export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/1, force_cluster/1, reset/0, force_reset/0, - is_clustered/0, running_clustered_nodes/0, all_clustered_nodes/0, - empty_ram_only_tables/0, copy_db/1, wait_for_tables/1]). - --export([table_names/0]). - -%% create_tables/0 exported for helping embed RabbitMQ in or alongside -%% other mnesia-using Erlang applications, such as ejabberd --export([create_tables/0]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([node_type/0]). - --type(node_type() :: disc_only | disc | ram | unknown). --spec(status/0 :: () -> [{'nodes', [{node_type(), [node()]}]} | - {'running_nodes', [node()]}]). --spec(dir/0 :: () -> file:filename()). --spec(ensure_mnesia_dir/0 :: () -> 'ok'). --spec(init/0 :: () -> 'ok'). --spec(is_db_empty/0 :: () -> boolean()). --spec(cluster/1 :: ([node()]) -> 'ok'). --spec(force_cluster/1 :: ([node()]) -> 'ok'). --spec(cluster/2 :: ([node()], boolean()) -> 'ok'). --spec(reset/0 :: () -> 'ok'). --spec(force_reset/0 :: () -> 'ok'). --spec(is_clustered/0 :: () -> boolean()). --spec(running_clustered_nodes/0 :: () -> [node()]). --spec(all_clustered_nodes/0 :: () -> [node()]). --spec(empty_ram_only_tables/0 :: () -> 'ok'). --spec(create_tables/0 :: () -> 'ok'). --spec(copy_db/1 :: (file:filename()) -> rabbit_types:ok_or_error(any())). --spec(wait_for_tables/1 :: ([atom()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -status() -> - [{nodes, case mnesia:system_info(is_running) of - yes -> [{Key, Nodes} || - {Key, CopyType} <- [{disc_only, disc_only_copies}, - {disc, disc_copies}, - {ram, ram_copies}], - begin - Nodes = nodes_of_type(CopyType), - Nodes =/= [] - end]; - no -> case all_clustered_nodes() of - [] -> []; - Nodes -> [{unknown, Nodes}] - end - end}, - {running_nodes, running_clustered_nodes()}]. - -init() -> - ok = ensure_mnesia_running(), - ok = ensure_mnesia_dir(), - ok = init_db(read_cluster_nodes_config(), true), - ok. - -is_db_empty() -> - lists:all(fun (Tab) -> mnesia:dirty_first(Tab) == '$end_of_table' end, - table_names()). - -cluster(ClusterNodes) -> - cluster(ClusterNodes, false). -force_cluster(ClusterNodes) -> - cluster(ClusterNodes, true). - -%% Alter which disk nodes this node is clustered with. This can be a -%% subset of all the disk nodes in the cluster but can (and should) -%% include the node itself if it is to be a disk rather than a ram -%% node. If Force is false, only connections to online nodes are -%% allowed. -cluster(ClusterNodes, Force) -> - ok = ensure_mnesia_not_running(), - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - try - ok = init_db(ClusterNodes, Force), - ok = create_cluster_nodes_config(ClusterNodes) - after - mnesia:stop() - end, - ok. - -%% return node to its virgin state, where it is not member of any -%% cluster, has no cluster configuration, no local database, and no -%% persisted messages -reset() -> reset(false). -force_reset() -> reset(true). - -is_clustered() -> - RunningNodes = running_clustered_nodes(), - [node()] /= RunningNodes andalso [] /= RunningNodes. - -all_clustered_nodes() -> - mnesia:system_info(db_nodes). - -running_clustered_nodes() -> - mnesia:system_info(running_db_nodes). - -empty_ram_only_tables() -> - Node = node(), - lists:foreach( - fun (TabName) -> - case lists:member(Node, mnesia:table_info(TabName, ram_copies)) of - true -> {atomic, ok} = mnesia:clear_table(TabName); - false -> ok - end - end, table_names()), - ok. - -%%-------------------------------------------------------------------- - -nodes_of_type(Type) -> - %% This function should return the nodes of a certain type (ram, - %% disc or disc_only) in the current cluster. The type of nodes - %% is determined when the cluster is initially configured. - %% Specifically, we check whether a certain table, which we know - %% will be written to disk on a disc node, is stored on disk or in - %% RAM. - mnesia:table_info(rabbit_durable_exchange, Type). - -table_definitions() -> - [{rabbit_user, - [{record_name, internal_user}, - {attributes, record_info(fields, internal_user)}, - {disc_copies, [node()]}, - {match, #internal_user{_='_'}}]}, - {rabbit_user_permission, - [{record_name, user_permission}, - {attributes, record_info(fields, user_permission)}, - {disc_copies, [node()]}, - {match, #user_permission{user_vhost = #user_vhost{_='_'}, - permission = #permission{_='_'}, - _='_'}}]}, - {rabbit_vhost, - [{record_name, vhost}, - {attributes, record_info(fields, vhost)}, - {disc_copies, [node()]}, - {match, #vhost{_='_'}}]}, - {rabbit_listener, - [{record_name, listener}, - {attributes, record_info(fields, listener)}, - {type, bag}, - {match, #listener{_='_'}}]}, - {rabbit_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {disc_copies, [node()]}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_reverse_route, - [{record_name, reverse_route}, - {attributes, record_info(fields, reverse_route)}, - {type, ordered_set}, - {match, #reverse_route{reverse_binding = reverse_binding_match(), - _='_'}}]}, - {rabbit_topic_trie_edge, - [{record_name, topic_trie_edge}, - {attributes, record_info(fields, topic_trie_edge)}, - {type, ordered_set}, - {match, #topic_trie_edge{trie_edge = trie_edge_match(), _='_'}}]}, - {rabbit_topic_trie_binding, - [{record_name, topic_trie_binding}, - {attributes, record_info(fields, topic_trie_binding)}, - {type, ordered_set}, - {match, #topic_trie_binding{trie_binding = trie_binding_match(), - _='_'}}]}, - %% Consider the implications to nodes_of_type/1 before altering - %% the next entry. - {rabbit_durable_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {disc_copies, [node()]}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_durable_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {disc_copies, [node()]}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}, - {rabbit_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}]. - -binding_match() -> - #binding{source = exchange_name_match(), - destination = binding_destination_match(), - _='_'}. -reverse_binding_match() -> - #reverse_binding{destination = binding_destination_match(), - source = exchange_name_match(), - _='_'}. -binding_destination_match() -> - resource_match('_'). -trie_edge_match() -> - #trie_edge{exchange_name = exchange_name_match(), - _='_'}. -trie_binding_match() -> - #trie_binding{exchange_name = exchange_name_match(), - _='_'}. -exchange_name_match() -> - resource_match(exchange). -queue_name_match() -> - resource_match(queue). -resource_match(Kind) -> - #resource{kind = Kind, _='_'}. - -table_names() -> - [Tab || {Tab, _} <- table_definitions()]. - -replicated_table_names() -> - [Tab || {Tab, TabDef} <- table_definitions(), - not lists:member({local_content, true}, TabDef) - ]. - -dir() -> mnesia:system_info(directory). - -ensure_mnesia_dir() -> - MnesiaDir = dir() ++ "/", - case filelib:ensure_dir(MnesiaDir) of - {error, Reason} -> - throw({error, {cannot_create_mnesia_dir, MnesiaDir, Reason}}); - ok -> - ok - end. - -ensure_mnesia_running() -> - case mnesia:system_info(is_running) of - yes -> ok; - no -> throw({error, mnesia_not_running}) - end. - -ensure_mnesia_not_running() -> - case mnesia:system_info(is_running) of - no -> ok; - yes -> throw({error, mnesia_unexpectedly_running}) - end. - -ensure_schema_integrity() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - throw({error, {schema_integrity_check_failed, Reason}}) - end. - -check_schema_integrity() -> - Tables = mnesia:system_info(tables), - case check_tables(fun (Tab, TabDef) -> - case lists:member(Tab, Tables) of - false -> {error, {table_missing, Tab}}; - true -> check_table_attributes(Tab, TabDef) - end - end) of - ok -> ok = wait_for_tables(), - check_tables(fun check_table_content/2); - Other -> Other - end. - -check_table_attributes(Tab, TabDef) -> - {_, ExpAttrs} = proplists:lookup(attributes, TabDef), - case mnesia:table_info(Tab, attributes) of - ExpAttrs -> ok; - Attrs -> {error, {table_attributes_mismatch, Tab, ExpAttrs, Attrs}} - end. - -check_table_content(Tab, TabDef) -> - {_, Match} = proplists:lookup(match, TabDef), - case mnesia:dirty_first(Tab) of - '$end_of_table' -> - ok; - Key -> - ObjList = mnesia:dirty_read(Tab, Key), - MatchComp = ets:match_spec_compile([{Match, [], ['$_']}]), - case ets:match_spec_run(ObjList, MatchComp) of - ObjList -> ok; - _ -> {error, {table_content_invalid, Tab, Match, ObjList}} - end - end. - -check_tables(Fun) -> - case [Error || {Tab, TabDef} <- table_definitions(), - case Fun(Tab, TabDef) of - ok -> Error = none, false; - {error, Error} -> true - end] of - [] -> ok; - Errors -> {error, Errors} - end. - -%% The cluster node config file contains some or all of the disk nodes -%% that are members of the cluster this node is / should be a part of. -%% -%% If the file is absent, the list is empty, or only contains the -%% current node, then the current node is a standalone (disk) -%% node. Otherwise it is a node that is part of a cluster as either a -%% disk node, if it appears in the cluster node config, or ram node if -%% it doesn't. - -cluster_nodes_config_filename() -> - dir() ++ "/cluster_nodes.config". - -create_cluster_nodes_config(ClusterNodes) -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:write_term_file(FileName, [ClusterNodes]) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_cluster_nodes_config, - FileName, Reason}}) - end. - -read_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - {ok, ClusterNodes} = application:get_env(rabbit, cluster_nodes), - ClusterNodes; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - FileName, Reason}}) - end. - -delete_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> - throw({error, {cannot_delete_cluster_nodes_config, - FileName, Reason}}) - end. - -%% Take a cluster node config and create the right kind of node - a -%% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. If Force is false, don't allow -%% connections to offline nodes. -init_db(ClusterNodes, Force) -> - UClusterNodes = lists:usort(ClusterNodes), - ProperClusterNodes = UClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ProperClusterNodes) of - {ok, Nodes} -> - case Force of - false -> FailedClusterNodes = ProperClusterNodes -- Nodes, - case FailedClusterNodes of - [] -> ok; - _ -> throw({error, {failed_to_cluster_with, - FailedClusterNodes, - "Mnesia could not connect " - "to some nodes."}}) - end; - true -> ok - end, - case {Nodes, mnesia:system_info(use_dir), all_clustered_nodes()} of - {[], true, [_]} -> - %% True single disc node, attempt upgrade - case rabbit_upgrade:maybe_upgrade() of - ok -> ensure_schema_integrity(); - version_not_available -> schema_ok_or_move() - end; - {[], true, _} -> - %% "Master" (i.e. without config) disc node in cluster, - %% verify schema - ensure_version_ok(rabbit_upgrade:read_version()), - ensure_schema_integrity(); - {[], false, _} -> - %% Nothing there at all, start from scratch - ok = create_schema(); - {[AnotherNode|_], _, _} -> - %% Subsequent node in cluster, catch up - ensure_version_ok(rabbit_upgrade:read_version()), - ensure_version_ok( - rpc:call(AnotherNode, rabbit_upgrade, read_version, [])), - IsDiskNode = ClusterNodes == [] orelse - lists:member(node(), ClusterNodes), - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_table_copies(case IsDiskNode of - true -> disc; - false -> ram - end), - ensure_schema_integrity() - end; - {error, Reason} -> - %% one reason we may end up here is if we try to join - %% nodes together that are currently running standalone or - %% are members of a different cluster - throw({error, {unable_to_join_cluster, ClusterNodes, Reason}}) - end. - -schema_ok_or_move() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - %% NB: we cannot use rabbit_log here since it may not have been - %% started yet - error_logger:warning_msg("schema integrity check failed: ~p~n" - "moving database to backup location " - "and recreating schema from scratch~n", - [Reason]), - ok = move_db(), - ok = create_schema() - end. - -ensure_version_ok({ok, DiscVersion}) -> - case rabbit_upgrade:desired_version() of - DiscVersion -> ok; - DesiredVersion -> throw({error, {schema_mismatch, - DesiredVersion, DiscVersion}}) - end; -ensure_version_ok({error, _}) -> - ok = rabbit_upgrade:write_version(). - -create_schema() -> - mnesia:stop(), - rabbit_misc:ensure_ok(mnesia:create_schema([node()]), - cannot_create_schema), - rabbit_misc:ensure_ok(mnesia:start(), - cannot_start_mnesia), - ok = create_tables(), - ok = ensure_schema_integrity(), - ok = rabbit_upgrade:write_version(). - -move_db() -> - mnesia:stop(), - MnesiaDir = filename:dirname(dir() ++ "/"), - {{Year, Month, Day}, {Hour, Minute, Second}} = erlang:universaltime(), - BackupDir = lists:flatten( - io_lib:format("~s_~w~2..0w~2..0w~2..0w~2..0w~2..0w", - [MnesiaDir, - Year, Month, Day, Hour, Minute, Second])), - case file:rename(MnesiaDir, BackupDir) of - ok -> - %% NB: we cannot use rabbit_log here since it may not have - %% been started yet - error_logger:warning_msg("moved database from ~s to ~s~n", - [MnesiaDir, BackupDir]), - ok; - {error, Reason} -> throw({error, {cannot_backup_mnesia, - MnesiaDir, BackupDir, Reason}}) - end, - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok. - -copy_db(Destination) -> - mnesia:stop(), - case rabbit_misc:recursive_copy(dir(), Destination) of - ok -> - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia); - {error, E} -> - {error, E} - end. - -create_tables() -> - lists:foreach(fun ({Tab, TabDef}) -> - TabDef1 = proplists:delete(match, TabDef), - case mnesia:create_table(Tab, TabDef1) of - {atomic, ok} -> ok; - {aborted, Reason} -> - throw({error, {table_creation_failed, - Tab, TabDef1, Reason}}) - end - end, - table_definitions()), - ok. - -table_has_copy_type(TabDef, DiscType) -> - lists:member(node(), proplists:get_value(DiscType, TabDef, [])). - -create_local_table_copies(Type) -> - lists:foreach( - fun ({Tab, TabDef}) -> - HasDiscCopies = table_has_copy_type(TabDef, disc_copies), - HasDiscOnlyCopies = table_has_copy_type(TabDef, disc_only_copies), - LocalTab = proplists:get_bool(local_content, TabDef), - StorageType = - if - Type =:= disc orelse LocalTab -> - if - HasDiscCopies -> disc_copies; - HasDiscOnlyCopies -> disc_only_copies; - true -> ram_copies - end; -%% unused code - commented out to keep dialyzer happy -%% Type =:= disc_only -> -%% if -%% HasDiscCopies or HasDiscOnlyCopies -> -%% disc_only_copies; -%% true -> ram_copies -%% end; - Type =:= ram -> - ram_copies - end, - ok = create_local_table_copy(Tab, StorageType) - end, - table_definitions()), - ok. - -create_local_table_copy(Tab, Type) -> - StorageType = mnesia:table_info(Tab, storage_type), - {atomic, ok} = - if - StorageType == unknown -> - mnesia:add_table_copy(Tab, node(), Type); - StorageType /= Type -> - mnesia:change_table_copy_type(Tab, node(), Type); - true -> {atomic, ok} - end, - ok. - -wait_for_replicated_tables() -> wait_for_tables(replicated_table_names()). - -wait_for_tables() -> wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> - case mnesia:wait_for_tables(TableNames, 30000) of - ok -> - ok; - {timeout, BadTabs} -> - throw({error, {timeout_waiting_for_tables, BadTabs}}); - {error, Reason} -> - throw({error, {failed_waiting_for_tables, Reason}}) - end. - -reset(Force) -> - ok = ensure_mnesia_not_running(), - Node = node(), - case Force of - true -> ok; - false -> - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - {Nodes, RunningNodes} = - try - ok = init(), - {all_clustered_nodes() -- [Node], - running_clustered_nodes() -- [Node]} - after - mnesia:stop() - end, - leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) - end, - ok = delete_cluster_nodes_config(), - %% remove persisted messages and any other garbage we find - ok = rabbit_misc:recursive_delete(filelib:wildcard(dir() ++ "/*")), - ok. - -leave_cluster([], _) -> ok; -leave_cluster(Nodes, RunningNodes) -> - %% find at least one running cluster node and instruct it to - %% remove our schema copy which will in turn result in our node - %% being removed as a cluster node from the schema, with that - %% change being propagated to all nodes - case lists:any( - fun (Node) -> - case rpc:call(Node, mnesia, del_table_copy, - [schema, node()]) of - {atomic, ok} -> true; - {badrpc, nodedown} -> false; - {aborted, Reason} -> - throw({error, {failed_to_leave_cluster, - Nodes, RunningNodes, Reason}}) - end - end, - RunningNodes) of - true -> ok; - false -> throw({error, {no_running_cluster_nodes, - Nodes, RunningNodes}}) - end. diff --git a/src/rabbit_msg_file.erl b/src/rabbit_msg_file.erl deleted file mode 100644 index 55e6ac47..00000000 --- a/src/rabbit_msg_file.erl +++ /dev/null @@ -1,122 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_file). - --export([append/3, read/2, scan/4]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_MARKER, 255). --define(FILE_PACKING_ADJUSTMENT, (1 + ?INTEGER_SIZE_BYTES)). --define(GUID_SIZE_BYTES, 16). --define(GUID_SIZE_BITS, (8 * ?GUID_SIZE_BYTES)). --define(SCAN_BLOCK_SIZE, 4194304). %% 4MB - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(io_device() :: any()). --type(position() :: non_neg_integer()). --type(msg_size() :: non_neg_integer()). --type(file_size() :: non_neg_integer()). - --spec(append/3 :: (io_device(), rabbit_guid:guid(), msg()) -> - rabbit_types:ok_or_error2(msg_size(), any())). --spec(read/2 :: (io_device(), msg_size()) -> - rabbit_types:ok_or_error2({rabbit_guid:guid(), msg()}, - any())). --spec(scan/4 :: (io_device(), file_size(), - fun (({rabbit_guid:guid(), msg_size(), position(), binary()}, A) -> A), - A) -> {'ok', A, position()}). - --endif. - -%%---------------------------------------------------------------------------- - -append(FileHdl, Guid, MsgBody) - when is_binary(Guid) andalso size(Guid) =:= ?GUID_SIZE_BYTES -> - MsgBodyBin = term_to_binary(MsgBody), - MsgBodyBinSize = size(MsgBodyBin), - Size = MsgBodyBinSize + ?GUID_SIZE_BYTES, - case file_handle_cache:append(FileHdl, - <>) of - ok -> {ok, Size + ?FILE_PACKING_ADJUSTMENT}; - KO -> KO - end. - -read(FileHdl, TotalSize) -> - Size = TotalSize - ?FILE_PACKING_ADJUSTMENT, - BodyBinSize = Size - ?GUID_SIZE_BYTES, - case file_handle_cache:read(FileHdl, TotalSize) of - {ok, <>} -> - {ok, {Guid, binary_to_term(MsgBodyBin)}}; - KO -> KO - end. - -scan(FileHdl, FileSize, Fun, Acc) when FileSize >= 0 -> - scan(FileHdl, FileSize, <<>>, 0, 0, Fun, Acc). - -scan(_FileHdl, FileSize, _Data, FileSize, ScanOffset, _Fun, Acc) -> - {ok, Acc, ScanOffset}; -scan(FileHdl, FileSize, Data, ReadOffset, ScanOffset, Fun, Acc) -> - Read = lists:min([?SCAN_BLOCK_SIZE, (FileSize - ReadOffset)]), - case file_handle_cache:read(FileHdl, Read) of - {ok, Data1} -> - {Data2, Acc1, ScanOffset1} = - scanner(<>, ScanOffset, Fun, Acc), - ReadOffset1 = ReadOffset + size(Data1), - scan(FileHdl, FileSize, Data2, ReadOffset1, ScanOffset1, Fun, Acc1); - _KO -> - {ok, Acc, ScanOffset} - end. - -scanner(<<>>, Offset, _Fun, Acc) -> - {<<>>, Acc, Offset}; -scanner(<<0:?INTEGER_SIZE_BITS, _Rest/binary>>, Offset, _Fun, Acc) -> - {<<>>, Acc, Offset}; %% Nothing to do other than stop. -scanner(<>, Offset, Fun, Acc) -> - TotalSize = Size + ?FILE_PACKING_ADJUSTMENT, - case WriteMarker of - ?WRITE_OK_MARKER -> - %% Here we take option 5 from - %% http://www.erlang.org/cgi-bin/ezmlm-cgi?2:mss:1569 in - %% which we read the Guid as a number, and then convert it - %% back to a binary in order to work around bugs in - %% Erlang's GC. - <> = - <>, - <> = <>, - scanner(Rest, Offset + TotalSize, Fun, - Fun({Guid, TotalSize, Offset, Msg}, Acc)); - _ -> - scanner(Rest, Offset + TotalSize, Fun, Acc) - end; -scanner(Data, Offset, _Fun, Acc) -> - {Data, Acc, Offset}. diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl deleted file mode 100644 index 9e65e442..00000000 --- a/src/rabbit_msg_store.erl +++ /dev/null @@ -1,2012 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store). - --behaviour(gen_server2). - --export([start_link/4, successfully_recovered_state/1, - client_init/4, client_terminate/1, client_delete_and_terminate/1, - client_ref/1, close_all_indicated/1, - write/3, read/2, contains/2, remove/2, release/2, sync/3]). - --export([sync/1, set_maximum_since_use/2, - has_readers/2, combine_files/3, delete_file/2]). %% internal - --export([transform_dir/3, force_recovery/2]). %% upgrade - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_call/3, prioritise_cast/2]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(CLEAN_FILENAME, "clean.dot"). --define(FILE_SUMMARY_FILENAME, "file_summary.ets"). --define(TRANSFORM_TMP, "transform_tmp"). - --define(BINARY_MODE, [raw, binary]). --define(READ_MODE, [read]). --define(READ_AHEAD_MODE, [read_ahead | ?READ_MODE]). --define(WRITE_MODE, [write]). - --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). - --define(HANDLE_CACHE_BUFFER_SIZE, 1048576). %% 1MB - -%%---------------------------------------------------------------------------- - --record(msstate, - { dir, %% store directory - index_module, %% the module for index ops - index_state, %% where are messages? - current_file, %% current file name as number - current_file_handle, %% current file handle since the last fsync? - file_handle_cache, %% file handle cache - on_sync, %% pending sync requests - sync_timer_ref, %% TRef for our interval timer - sum_valid_data, %% sum of valid data in all files - sum_file_size, %% sum of file sizes - pending_gc_completion, %% things to do once GC completes - gc_pid, %% pid of our GC - file_handles_ets, %% tid of the shared file handles table - file_summary_ets, %% tid of the file summary table - dedup_cache_ets, %% tid of dedup cache table - cur_file_cache_ets, %% tid of current file cache table - dying_clients, %% set of dying clients - clients, %% map of references of all registered clients - %% to callbacks - successfully_recovered, %% boolean: did we recover state? - file_size_limit, %% how big are our files allowed to get? - cref_to_guids %% client ref to synced messages mapping - }). - --record(client_msstate, - { server, - client_ref, - file_handle_cache, - index_state, - index_module, - dir, - gc_pid, - file_handles_ets, - file_summary_ets, - dedup_cache_ets, - cur_file_cache_ets - }). - --record(file_summary, - {file, valid_total_size, left, right, file_size, locked, readers}). - --record(gc_state, - { dir, - index_module, - index_state, - file_summary_ets, - file_handles_ets, - msg_store - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([gc_state/0, file_num/0]). - --type(gc_state() :: #gc_state { dir :: file:filename(), - index_module :: atom(), - index_state :: any(), - file_summary_ets :: ets:tid(), - file_handles_ets :: ets:tid(), - msg_store :: server() - }). - --type(server() :: pid() | atom()). --type(client_ref() :: binary()). --type(file_num() :: non_neg_integer()). --type(client_msstate() :: #client_msstate { - server :: server(), - client_ref :: client_ref(), - file_handle_cache :: dict(), - index_state :: any(), - index_module :: atom(), - dir :: file:filename(), - gc_pid :: pid(), - file_handles_ets :: ets:tid(), - file_summary_ets :: ets:tid(), - dedup_cache_ets :: ets:tid(), - cur_file_cache_ets :: ets:tid()}). --type(startup_fun_state() :: - {(fun ((A) -> 'finished' | {rabbit_guid:guid(), non_neg_integer(), A})), - A}). --type(maybe_guid_fun() :: 'undefined' | fun ((gb_set()) -> any())). --type(maybe_close_fds_fun() :: 'undefined' | fun (() -> 'ok')). --type(deletion_thunk() :: fun (() -> boolean())). - --spec(start_link/4 :: - (atom(), file:filename(), [binary()] | 'undefined', - startup_fun_state()) -> rabbit_types:ok_pid_or_error()). --spec(successfully_recovered_state/1 :: (server()) -> boolean()). --spec(client_init/4 :: (server(), client_ref(), maybe_guid_fun(), - maybe_close_fds_fun()) -> client_msstate()). --spec(client_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_delete_and_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_ref/1 :: (client_msstate()) -> client_ref()). --spec(write/3 :: (rabbit_guid:guid(), msg(), client_msstate()) -> 'ok'). --spec(read/2 :: (rabbit_guid:guid(), client_msstate()) -> - {rabbit_types:ok(msg()) | 'not_found', client_msstate()}). --spec(contains/2 :: (rabbit_guid:guid(), client_msstate()) -> boolean()). --spec(remove/2 :: ([rabbit_guid:guid()], client_msstate()) -> 'ok'). --spec(release/2 :: ([rabbit_guid:guid()], client_msstate()) -> 'ok'). --spec(sync/3 :: ([rabbit_guid:guid()], fun (() -> any()), client_msstate()) -> - 'ok'). - --spec(sync/1 :: (server()) -> 'ok'). --spec(set_maximum_since_use/2 :: (server(), non_neg_integer()) -> 'ok'). --spec(has_readers/2 :: (non_neg_integer(), gc_state()) -> boolean()). --spec(combine_files/3 :: (non_neg_integer(), non_neg_integer(), gc_state()) -> - deletion_thunk()). --spec(delete_file/2 :: (non_neg_integer(), gc_state()) -> deletion_thunk()). --spec(force_recovery/2 :: (file:filename(), server()) -> 'ok'). --spec(transform_dir/3 :: (file:filename(), server(), - fun ((any()) -> (rabbit_types:ok_or_error2(msg(), any())))) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%% We run GC whenever (garbage / sum_file_size) > ?GARBAGE_FRACTION -%% It is not recommended to set this to < 0.5 --define(GARBAGE_FRACTION, 0.5). - -%% The components: -%% -%% Index: this is a mapping from Guid to #msg_location{}: -%% {Guid, RefCount, File, Offset, TotalSize} -%% By default, it's in ets, but it's also pluggable. -%% FileSummary: this is an ets table which maps File to #file_summary{}: -%% {File, ValidTotalSize, Left, Right, FileSize, Locked, Readers} -%% -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the Index); how much useful data is in each file and which files -%% are on the left and right of each other. This is the purpose of the -%% FileSummary ets table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file. This is needed for garbage collection. -%% -%% When we discover that a file is now empty, we delete it. When we -%% discover that it can be combined with the useful data in either its -%% left or right neighbour, and overall, across all the files, we have -%% ((the amount of garbage) / (the sum of all file sizes)) > -%% ?GARBAGE_FRACTION, we start a garbage collection run concurrently, -%% which will compact the two files together. This keeps disk -%% utilisation high and aids performance. We deliberately do this -%% lazily in order to prevent doing GC on files which are soon to be -%% emptied (and hence deleted) soon. -%% -%% Given the compaction between two files, the left file (i.e. elder -%% file) is considered the ultimate destination for the good data in -%% the right file. If necessary, the good data in the left file which -%% is fragmented throughout the file is written out to a temporary -%% file, then read back in to form a contiguous chunk of good data at -%% the start of the left file. Thus the left file is garbage collected -%% and compacted. Then the good data from the right file is copied -%% onto the end of the left file. Index and FileSummary tables are -%% updated. -%% -%% On non-clean startup, we scan the files we discover, dealing with -%% the possibilites of a crash having occured during a compaction -%% (this consists of tidyup - the compaction is deliberately designed -%% such that data is duplicated on disk rather than risking it being -%% lost), and rebuild the FileSummary ets table and Index. -%% -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten. -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). -%% -%% Messages are reference-counted. When a message with the same guid -%% is written several times we only store it once, and only remove it -%% from the store when it has been removed the same number of times. -%% -%% The reference counts do not persist. Therefore the initialisation -%% function must be provided with a generator that produces ref count -%% deltas for all recovered messages. This is only used on startup -%% when the shutdown was non-clean. -%% -%% Read messages with a reference count greater than one are entered -%% into a message cache. The purpose of the cache is not especially -%% performance, though it can help there too, but prevention of memory -%% explosion. It ensures that as messages with a high reference count -%% are read from several processes they are read back as the same -%% binary object rather than multiples of identical binary -%% objects. -%% -%% Reads can be performed directly by clients without calling to the -%% server. This is safe because multiple file handles can be used to -%% read files. However, locking is used by the concurrent GC to make -%% sure that reads are not attempted from files which are in the -%% process of being garbage collected. -%% -%% When a message is removed, its reference count is decremented. Even -%% if the reference count becomes 0, its entry is not removed. This is -%% because in the event of the same message being sent to several -%% different queues, there is the possibility of one queue writing and -%% removing the message before other queues write it at all. Thus -%% accomodating 0-reference counts allows us to avoid unnecessary -%% writes here. Of course, there are complications: the file to which -%% the message has already been written could be locked pending -%% deletion or GC, which means we have to rewrite the message as the -%% original copy will now be lost. -%% -%% The server automatically defers reads, removes and contains calls -%% that occur which refer to files which are currently being -%% GC'd. Contains calls are only deferred in order to ensure they do -%% not overtake removes. -%% -%% The current file to which messages are being written has a -%% write-back cache. This is written to immediately by clients and can -%% be read from by clients too. This means that there are only ever -%% writes made to the current file, thus eliminating delays due to -%% flushing write buffers in order to be able to safely read from the -%% current file. The one exception to this is that on start up, the -%% cache is not populated with msgs found in the current file, and -%% thus in this case only, reads may have to come from the file -%% itself. The effect of this is that even if the msg_store process is -%% heavily overloaded, clients can still write and read messages with -%% very low latency and not block at all. -%% -%% Clients of the msg_store are required to register before using the -%% msg_store. This provides them with the necessary client-side state -%% to allow them to directly access the various caches and files. When -%% they terminate, they should deregister. They can do this by calling -%% either client_terminate/1 or client_delete_and_terminate/1. The -%% differences are: (a) client_terminate is synchronous. As a result, -%% if the msg_store is badly overloaded and has lots of in-flight -%% writes and removes to process, this will take some time to -%% return. However, once it does return, you can be sure that all the -%% actions you've issued to the msg_store have been processed. (b) Not -%% only is client_delete_and_terminate/1 asynchronous, but it also -%% permits writes and subsequent removes from the current -%% (terminating) client which are still in flight to be safely -%% ignored. Thus from the point of view of the msg_store itself, and -%% all from the same client: -%% -%% (T) = termination; (WN) = write of msg N; (RN) = remove of msg N -%% --> W1, W2, W1, R1, T, W3, R2, W2, R1, R2, R3, W4 --> -%% -%% The client obviously sent T after all the other messages (up to -%% W4), but because the msg_store prioritises messages, the T can be -%% promoted and thus received early. -%% -%% Thus at the point of the msg_store receiving T, we have messages 1 -%% and 2 with a refcount of 1. After T, W3 will be ignored because -%% it's an unknown message, as will R3, and W4. W2, R1 and R2 won't be -%% ignored because the messages that they refer to were already known -%% to the msg_store prior to T. However, it can be a little more -%% complex: after the first R2, the refcount of msg 2 is 0. At that -%% point, if a GC occurs or file deletion, msg 2 could vanish, which -%% would then mean that the subsequent W2 and R2 are then ignored. -%% -%% The use case then for client_delete_and_terminate/1 is if the -%% client wishes to remove everything it's written to the msg_store: -%% it issues removes for all messages it's written and not removed, -%% and then calls client_delete_and_terminate/1. At that point, any -%% in-flight writes (and subsequent removes) can be ignored, but -%% removes and writes for messages the msg_store already knows about -%% will continue to be processed normally (which will normally just -%% involve modifying the reference count, which is fast). Thus we save -%% disk bandwidth for writes which are going to be immediately removed -%% again by the the terminating client. -%% -%% We use a separate set to keep track of the dying clients in order -%% to keep that set, which is inspected on every write and remove, as -%% small as possible. Inspecting the set of all clients would degrade -%% performance with many healthy clients and few, if any, dying -%% clients, which is the typical case. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -start_link(Server, Dir, ClientRefs, StartupFunState) -> - gen_server2:start_link({local, Server}, ?MODULE, - [Server, Dir, ClientRefs, StartupFunState], - [{timeout, infinity}]). - -successfully_recovered_state(Server) -> - gen_server2:call(Server, successfully_recovered_state, infinity). - -client_init(Server, Ref, MsgOnDiskFun, CloseFDsFun) -> - {IState, IModule, Dir, GCPid, - FileHandlesEts, FileSummaryEts, DedupCacheEts, CurFileCacheEts} = - gen_server2:call( - Server, {new_client_state, Ref, MsgOnDiskFun, CloseFDsFun}, infinity), - #client_msstate { server = Server, - client_ref = Ref, - file_handle_cache = dict:new(), - index_state = IState, - index_module = IModule, - dir = Dir, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts }. - -client_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_call(CState, {client_terminate, Ref}). - -client_delete_and_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_cast(CState, {client_dying, Ref}), - ok = server_cast(CState, {client_delete, Ref}). - -client_ref(#client_msstate { client_ref = Ref }) -> Ref. - -write(Guid, Msg, - CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts, - client_ref = CRef }) -> - ok = update_msg_cache(CurFileCacheEts, Guid, Msg), - ok = server_cast(CState, {write, CRef, Guid}). - -read(Guid, - CState = #client_msstate { dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts }) -> - %% 1. Check the dedup cache - case fetch_and_increment_cache(DedupCacheEts, Guid) of - not_found -> - %% 2. Check the cur file cache - case ets:lookup(CurFileCacheEts, Guid) of - [] -> - Defer = fun() -> - {server_call(CState, {read, Guid}), CState} - end, - case index_lookup_positive_ref_count(Guid, CState) of - not_found -> Defer(); - MsgLocation -> client_read1(MsgLocation, Defer, CState) - end; - [{Guid, Msg, _CacheRefCount}] -> - %% Although we've found it, we don't know the - %% refcount, so can't insert into dedup cache - {{ok, Msg}, CState} - end; - Msg -> - {{ok, Msg}, CState} - end. - -contains(Guid, CState) -> server_call(CState, {contains, Guid}). -remove([], _CState) -> ok; -remove(Guids, CState = #client_msstate { client_ref = CRef }) -> - server_cast(CState, {remove, CRef, Guids}). -release([], _CState) -> ok; -release(Guids, CState) -> server_cast(CState, {release, Guids}). -sync(Guids, K, CState) -> server_cast(CState, {sync, Guids, K}). - -sync(Server) -> - gen_server2:cast(Server, sync). - -set_maximum_since_use(Server, Age) -> - gen_server2:cast(Server, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- -%% Client-side-only helpers -%%---------------------------------------------------------------------------- - -server_call(#client_msstate { server = Server }, Msg) -> - gen_server2:call(Server, Msg, infinity). - -server_cast(#client_msstate { server = Server }, Msg) -> - gen_server2:cast(Server, Msg). - -client_read1(#msg_location { guid = Guid, file = File } = MsgLocation, Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - case ets:lookup(FileSummaryEts, File) of - [] -> %% File has been GC'd and no longer exists. Go around again. - read(Guid, CState); - [#file_summary { locked = Locked, right = Right }] -> - client_read2(Locked, Right, MsgLocation, Defer, CState) - end. - -client_read2(false, undefined, _MsgLocation, Defer, _CState) -> - %% Although we've already checked both caches and not found the - %% message there, the message is apparently in the - %% current_file. We can only arrive here if we are trying to read - %% a message which we have not written, which is very odd, so just - %% defer. - %% - %% OR, on startup, the cur_file_cache is not populated with the - %% contents of the current file, thus reads from the current file - %% will end up here and will need to be deferred. - Defer(); -client_read2(true, _Right, _MsgLocation, Defer, _CState) -> - %% Of course, in the mean time, the GC could have run and our msg - %% is actually in a different file, unlocked. However, defering is - %% the safest and simplest thing to do. - Defer(); -client_read2(false, _Right, - MsgLocation = #msg_location { guid = Guid, file = File }, - Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - %% It's entirely possible that everything we're doing from here on - %% is for the wrong file, or a non-existent file, as a GC may have - %% finished. - safe_ets_update_counter( - FileSummaryEts, File, {#file_summary.readers, +1}, - fun (_) -> client_read3(MsgLocation, Defer, CState) end, - fun () -> read(Guid, CState) end). - -client_read3(#msg_location { guid = Guid, file = File }, Defer, - CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - gc_pid = GCPid, - client_ref = Ref }) -> - Release = - fun() -> ok = case ets:update_counter(FileSummaryEts, File, - {#file_summary.readers, -1}) of - 0 -> case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - rabbit_msg_store_gc:no_readers( - GCPid, File); - _ -> ok - end; - _ -> ok - end - end, - %% If a GC involving the file hasn't already started, it won't - %% start now. Need to check again to see if we've been locked in - %% the meantime, between lookup and update_counter (thus GC - %% started before our +1. In fact, it could have finished by now - %% too). - case ets:lookup(FileSummaryEts, File) of - [] -> %% GC has deleted our file, just go round again. - read(Guid, CState); - [#file_summary { locked = true }] -> - %% If we get a badarg here, then the GC has finished and - %% deleted our file. Try going around again. Otherwise, - %% just defer. - %% - %% badarg scenario: we lookup, msg_store locks, GC starts, - %% GC ends, we +1 readers, msg_store ets:deletes (and - %% unlocks the dest) - try Release(), - Defer() - catch error:badarg -> read(Guid, CState) - end; - [#file_summary { locked = false }] -> - %% Ok, we're definitely safe to continue - a GC involving - %% the file cannot start up now, and isn't running, so - %% nothing will tell us from now on to close the handle if - %% it's already open. - %% - %% Finally, we need to recheck that the msg is still at - %% the same place - it's possible an entire GC ran between - %% us doing the lookup and the +1 on the readers. (Same as - %% badarg scenario above, but we don't have a missing file - %% - we just have the /wrong/ file). - case index_lookup(Guid, CState) of - #msg_location { file = File } = MsgLocation -> - %% Still the same file. - {ok, CState1} = close_all_indicated(CState), - %% We are now guaranteed that the mark_handle_open - %% call will either insert_new correctly, or will - %% fail, but find the value is open, not close. - mark_handle_open(FileHandlesEts, File, Ref), - %% Could the msg_store now mark the file to be - %% closed? No: marks for closing are issued only - %% when the msg_store has locked the file. - {Msg, CState2} = %% This will never be the current file - read_from_disk(MsgLocation, CState1, DedupCacheEts), - Release(), %% this MUST NOT fail with badarg - {{ok, Msg}, CState2}; - #msg_location {} = MsgLocation -> %% different file! - Release(), %% this MUST NOT fail with badarg - client_read1(MsgLocation, Defer, CState); - not_found -> %% it seems not to exist. Defer, just to be sure. - try Release() %% this can badarg, same as locked case, above - catch error:badarg -> ok - end, - Defer() - end - end. - -clear_client(CRef, State = #msstate { cref_to_guids = CTG, - dying_clients = DyingClients }) -> - State #msstate { cref_to_guids = dict:erase(CRef, CTG), - dying_clients = sets:del_element(CRef, DyingClients) }. - - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([Server, BaseDir, ClientRefs, StartupFunState]) -> - process_flag(trap_exit, true), - - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - - Dir = filename:join(BaseDir, atom_to_list(Server)), - - {ok, IndexModule} = application:get_env(msg_store_index_module), - rabbit_log:info("~w: using ~p to provide index~n", [Server, IndexModule]), - - AttemptFileSummaryRecovery = - case ClientRefs of - undefined -> ok = rabbit_misc:recursive_delete([Dir]), - ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - false; - _ -> ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - recover_crashed_compactions(Dir) - end, - - %% if we found crashed compactions we trust neither the - %% file_summary nor the location index. Note the file_summary is - %% left empty here if it can't be recovered. - {FileSummaryRecovered, FileSummaryEts} = - recover_file_summary(AttemptFileSummaryRecovery, Dir), - - {CleanShutdown, IndexState, ClientRefs1} = - recover_index_and_client_refs(IndexModule, FileSummaryRecovered, - ClientRefs, Dir, Server), - Clients = dict:from_list( - [{CRef, {undefined, undefined}} || CRef <- ClientRefs1]), - %% CleanShutdown => msg location index and file_summary both - %% recovered correctly. - true = case {FileSummaryRecovered, CleanShutdown} of - {true, false} -> ets:delete_all_objects(FileSummaryEts); - _ -> true - end, - %% CleanShutdown <=> msg location index and file_summary both - %% recovered correctly. - - DedupCacheEts = ets:new(rabbit_msg_store_dedup_cache, [set, public]), - FileHandlesEts = ets:new(rabbit_msg_store_shared_file_handles, - [ordered_set, public]), - CurFileCacheEts = ets:new(rabbit_msg_store_cur_file, [set, public]), - - {ok, FileSizeLimit} = application:get_env(msg_store_file_size_limit), - - State = #msstate { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - current_file = 0, - current_file_handle = undefined, - file_handle_cache = dict:new(), - on_sync = [], - sync_timer_ref = undefined, - sum_valid_data = 0, - sum_file_size = 0, - pending_gc_completion = orddict:new(), - gc_pid = undefined, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts, - dying_clients = sets:new(), - clients = Clients, - successfully_recovered = CleanShutdown, - file_size_limit = FileSizeLimit, - cref_to_guids = dict:new() - }, - - %% If we didn't recover the msg location index then we need to - %% rebuild it now. - {Offset, State1 = #msstate { current_file = CurFile }} = - build_index(CleanShutdown, StartupFunState, State), - - %% read is only needed so that we can seek - {ok, CurHdl} = open_file(Dir, filenum_to_name(CurFile), - [read | ?WRITE_MODE]), - {ok, Offset} = file_handle_cache:position(CurHdl, Offset), - ok = file_handle_cache:truncate(CurHdl), - - {ok, GCPid} = rabbit_msg_store_gc:start_link( - #gc_state { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - msg_store = self() - }), - - {ok, maybe_compact( - State1 #msstate { current_file_handle = CurHdl, gc_pid = GCPid }), - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - successfully_recovered_state -> 7; - {new_client_state, _Ref, _MODC, _CloseFDsFun} -> 7; - {read, _Guid} -> 2; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - sync -> 8; - {combine_files, _Source, _Destination, _Reclaimed} -> 8; - {delete_file, _File, _Reclaimed} -> 8; - {set_maximum_since_use, _Age} -> 8; - {client_dying, _Pid} -> 7; - _ -> 0 - end. - -handle_call(successfully_recovered_state, _From, State) -> - reply(State #msstate.successfully_recovered, State); - -handle_call({new_client_state, CRef, MsgOnDiskFun, CloseFDsFun}, _From, - State = #msstate { dir = Dir, - index_state = IndexState, - index_module = IndexModule, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - gc_pid = GCPid }) -> - Clients1 = dict:store(CRef, {MsgOnDiskFun, CloseFDsFun}, Clients), - reply({IndexState, IndexModule, Dir, GCPid, - FileHandlesEts, FileSummaryEts, DedupCacheEts, CurFileCacheEts}, - State #msstate { clients = Clients1 }); - -handle_call({client_terminate, CRef}, _From, State) -> - reply(ok, clear_client(CRef, State)); - -handle_call({read, Guid}, From, State) -> - State1 = read_message(Guid, From, State), - noreply(State1); - -handle_call({contains, Guid}, From, State) -> - State1 = contains_message(Guid, From, State), - noreply(State1). - -handle_cast({client_dying, CRef}, - State = #msstate { dying_clients = DyingClients }) -> - DyingClients1 = sets:add_element(CRef, DyingClients), - noreply(write_message(CRef, <<>>, - State #msstate { dying_clients = DyingClients1 })); - -handle_cast({client_delete, CRef}, State = #msstate { clients = Clients }) -> - State1 = State #msstate { clients = dict:erase(CRef, Clients) }, - noreply(remove_message(CRef, CRef, clear_client(CRef, State1))); - -handle_cast({write, CRef, Guid}, - State = #msstate { cur_file_cache_ets = CurFileCacheEts }) -> - true = 0 =< ets:update_counter(CurFileCacheEts, Guid, {3, -1}), - [{Guid, Msg, _CacheRefCount}] = ets:lookup(CurFileCacheEts, Guid), - noreply( - case write_action(should_mask_action(CRef, Guid, State), Guid, State) of - {write, State1} -> - write_message(CRef, Guid, Msg, State1); - {ignore, CurFile, State1 = #msstate { current_file = CurFile }} -> - State1; - {ignore, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {Guid, Msg, 0}), - State1; - {confirm, CurFile, State1 = #msstate { current_file = CurFile }}-> - record_pending_confirm(CRef, Guid, State1); - {confirm, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {Guid, Msg, 0}), - update_pending_confirms( - fun (MsgOnDiskFun, CTG) -> - MsgOnDiskFun(gb_sets:singleton(Guid), written), - CTG - end, CRef, State1) - end); - -handle_cast({remove, CRef, Guids}, State) -> - State1 = lists:foldl( - fun (Guid, State2) -> remove_message(Guid, CRef, State2) end, - State, Guids), - noreply(maybe_compact( - client_confirm(CRef, gb_sets:from_list(Guids), removed, State1))); - -handle_cast({release, Guids}, State = - #msstate { dedup_cache_ets = DedupCacheEts }) -> - lists:foreach( - fun (Guid) -> decrement_cache(DedupCacheEts, Guid) end, Guids), - noreply(State); - -handle_cast({sync, Guids, K}, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - on_sync = Syncs }) -> - {ok, SyncOffset} = file_handle_cache:last_sync_offset(CurHdl), - case lists:any(fun (Guid) -> - #msg_location { file = File, offset = Offset } = - index_lookup(Guid, State), - File =:= CurFile andalso Offset >= SyncOffset - end, Guids) of - false -> K(), - noreply(State); - true -> noreply(State #msstate { on_sync = [K | Syncs] }) - end; - -handle_cast(sync, State) -> - noreply(internal_sync(State)); - -handle_cast({combine_files, Source, Destination, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - ok = cleanup_after_file_deletion(Source, State), - %% see comment in cleanup_after_file_deletion, and client_read3 - true = mark_handle_to_close(Clients, FileHandlesEts, Destination, false), - true = ets:update_element(FileSummaryEts, Destination, - {#file_summary.locked, false}), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([Source, Destination], State1))); - -handle_cast({delete_file, File, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize }) -> - ok = cleanup_after_file_deletion(File, State), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([File], State1))); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State). - -handle_info(timeout, State) -> - noreply(internal_sync(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}. - -terminate(_Reason, State = #msstate { index_state = IndexState, - index_module = IndexModule, - current_file_handle = CurHdl, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - dir = Dir }) -> - %% stop the gc first, otherwise it could be working and we pull - %% out the ets tables from under it. - ok = rabbit_msg_store_gc:stop(GCPid), - State1 = case CurHdl of - undefined -> State; - _ -> State2 = internal_sync(State), - file_handle_cache:close(CurHdl), - State2 - end, - State3 = close_all_handles(State1), - store_file_summary(FileSummaryEts, Dir), - [ets:delete(T) || - T <- [FileSummaryEts, DedupCacheEts, FileHandlesEts, CurFileCacheEts]], - IndexModule:terminate(IndexState), - store_recovery_terms([{client_refs, dict:fetch_keys(Clients)}, - {index_module, IndexModule}], Dir), - State3 #msstate { index_state = undefined, - current_file_handle = undefined }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% general helper functions -%%---------------------------------------------------------------------------- - -noreply(State) -> - {State1, Timeout} = next_state(State), - {noreply, State1, Timeout}. - -reply(Reply, State) -> - {State1, Timeout} = next_state(State), - {reply, Reply, State1, Timeout}. - -next_state(State = #msstate { sync_timer_ref = undefined, - on_sync = Syncs, - cref_to_guids = CTG }) -> - case {Syncs, dict:size(CTG)} of - {[], 0} -> {State, hibernate}; - _ -> {start_sync_timer(State), 0} - end; -next_state(State = #msstate { on_sync = Syncs, - cref_to_guids = CTG }) -> - case {Syncs, dict:size(CTG)} of - {[], 0} -> {stop_sync_timer(State), hibernate}; - _ -> {State, 0} - end. - -start_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, sync, [self()]), - State #msstate { sync_timer_ref = TRef }. - -stop_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - State; -stop_sync_timer(State = #msstate { sync_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #msstate { sync_timer_ref = undefined }. - -internal_sync(State = #msstate { current_file_handle = CurHdl, - on_sync = Syncs, - cref_to_guids = CTG }) -> - State1 = stop_sync_timer(State), - CGs = dict:fold(fun (CRef, Guids, NS) -> - case gb_sets:is_empty(Guids) of - true -> NS; - false -> [{CRef, Guids} | NS] - end - end, [], CTG), - case {Syncs, CGs} of - {[], []} -> ok; - _ -> file_handle_cache:sync(CurHdl) - end, - [K() || K <- lists:reverse(Syncs)], - [client_confirm(CRef, Guids, written, State1) || {CRef, Guids} <- CGs], - State1 #msstate { cref_to_guids = dict:new(), on_sync = [] }. - -write_action({true, not_found}, _Guid, State) -> - {ignore, undefined, State}; -write_action({true, #msg_location { file = File }}, _Guid, State) -> - {ignore, File, State}; -write_action({false, not_found}, _Guid, State) -> - {write, State}; -write_action({Mask, #msg_location { ref_count = 0, file = File, - total_size = TotalSize }}, - Guid, State = #msstate { file_summary_ets = FileSummaryEts }) -> - case {Mask, ets:lookup(FileSummaryEts, File)} of - {false, [#file_summary { locked = true }]} -> - ok = index_delete(Guid, State), - {write, State}; - {false_if_increment, [#file_summary { locked = true }]} -> - %% The msg for Guid is older than the client death - %% message, but as it is being GC'd currently we'll have - %% to write a new copy, which will then be younger, so - %% ignore this write. - {ignore, File, State}; - {_Mask, [#file_summary {}]} -> - ok = index_update_ref_count(Guid, 1, State), - State1 = adjust_valid_total_size(File, TotalSize, State), - {confirm, File, State1} - end; -write_action({_Mask, #msg_location { ref_count = RefCount, file = File }}, - Guid, State) -> - ok = index_update_ref_count(Guid, RefCount + 1, State), - %% We already know about it, just update counter. Only update - %% field otherwise bad interaction with concurrent GC - {confirm, File, State}. - -write_message(CRef, Guid, Msg, State) -> - write_message(Guid, Msg, record_pending_confirm(CRef, Guid, State)). - -write_message(Guid, Msg, - State = #msstate { current_file_handle = CurHdl, - current_file = CurFile, - sum_valid_data = SumValid, - sum_file_size = SumFileSize, - file_summary_ets = FileSummaryEts }) -> - {ok, CurOffset} = file_handle_cache:current_virtual_offset(CurHdl), - {ok, TotalSize} = rabbit_msg_file:append(CurHdl, Guid, Msg), - ok = index_insert( - #msg_location { guid = Guid, ref_count = 1, file = CurFile, - offset = CurOffset, total_size = TotalSize }, State), - [#file_summary { right = undefined, locked = false }] = - ets:lookup(FileSummaryEts, CurFile), - [_,_] = ets:update_counter(FileSummaryEts, CurFile, - [{#file_summary.valid_total_size, TotalSize}, - {#file_summary.file_size, TotalSize}]), - maybe_roll_to_new_file(CurOffset + TotalSize, - State #msstate { - sum_valid_data = SumValid + TotalSize, - sum_file_size = SumFileSize + TotalSize }). - -read_message(Guid, From, - State = #msstate { dedup_cache_ets = DedupCacheEts }) -> - case index_lookup_positive_ref_count(Guid, State) of - not_found -> - gen_server2:reply(From, not_found), - State; - MsgLocation -> - case fetch_and_increment_cache(DedupCacheEts, Guid) of - not_found -> read_message1(From, MsgLocation, State); - Msg -> gen_server2:reply(From, {ok, Msg}), - State - end - end. - -read_message1(From, #msg_location { guid = Guid, ref_count = RefCount, - file = File, offset = Offset } = MsgLoc, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts }) -> - case File =:= CurFile of - true -> {Msg, State1} = - %% can return [] if msg in file existed on startup - case ets:lookup(CurFileCacheEts, Guid) of - [] -> - {ok, RawOffSet} = - file_handle_cache:current_raw_offset(CurHdl), - ok = case Offset >= RawOffSet of - true -> file_handle_cache:flush(CurHdl); - false -> ok - end, - read_from_disk(MsgLoc, State, DedupCacheEts); - [{Guid, Msg1, _CacheRefCount}] -> - ok = maybe_insert_into_cache( - DedupCacheEts, RefCount, Guid, Msg1), - {Msg1, State} - end, - gen_server2:reply(From, {ok, Msg}), - State1; - false -> [#file_summary { locked = Locked }] = - ets:lookup(FileSummaryEts, File), - case Locked of - true -> add_to_pending_gc_completion({read, Guid, From}, - File, State); - false -> {Msg, State1} = - read_from_disk(MsgLoc, State, DedupCacheEts), - gen_server2:reply(From, {ok, Msg}), - State1 - end - end. - -read_from_disk(#msg_location { guid = Guid, ref_count = RefCount, - file = File, offset = Offset, - total_size = TotalSize }, - State, DedupCacheEts) -> - {Hdl, State1} = get_read_handle(File, State), - {ok, Offset} = file_handle_cache:position(Hdl, Offset), - {ok, {Guid, Msg}} = - case rabbit_msg_file:read(Hdl, TotalSize) of - {ok, {Guid, _}} = Obj -> - Obj; - Rest -> - {error, {misread, [{old_state, State}, - {file_num, File}, - {offset, Offset}, - {guid, Guid}, - {read, Rest}, - {proc_dict, get()} - ]}} - end, - ok = maybe_insert_into_cache(DedupCacheEts, RefCount, Guid, Msg), - {Msg, State1}. - -contains_message(Guid, From, - State = #msstate { pending_gc_completion = Pending }) -> - case index_lookup_positive_ref_count(Guid, State) of - not_found -> - gen_server2:reply(From, false), - State; - #msg_location { file = File } -> - case orddict:is_key(File, Pending) of - true -> add_to_pending_gc_completion( - {contains, Guid, From}, File, State); - false -> gen_server2:reply(From, true), - State - end - end. - -remove_message(Guid, CRef, - State = #msstate { file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts }) -> - case should_mask_action(CRef, Guid, State) of - {true, _Location} -> - State; - {false_if_increment, #msg_location { ref_count = 0 }} -> - %% CRef has tried to both write and remove this msg - %% whilst it's being GC'd. ASSERTION: - %% [#file_summary { locked = true }] = - %% ets:lookup(FileSummaryEts, File), - State; - {_Mask, #msg_location { ref_count = RefCount, file = File, - total_size = TotalSize }} when RefCount > 0 -> - %% only update field, otherwise bad interaction with - %% concurrent GC - Dec = - fun () -> index_update_ref_count(Guid, RefCount - 1, State) end, - case RefCount of - %% don't remove from CUR_FILE_CACHE_ETS_NAME here - %% because there may be further writes in the mailbox - %% for the same msg. - 1 -> ok = remove_cache_entry(DedupCacheEts, Guid), - case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - add_to_pending_gc_completion( - {remove, Guid, CRef}, File, State); - [#file_summary {}] -> - ok = Dec(), - delete_file_if_empty( - File, adjust_valid_total_size(File, -TotalSize, - State)) - end; - _ -> ok = decrement_cache(DedupCacheEts, Guid), - ok = Dec(), - State - end - end. - -add_to_pending_gc_completion( - Op, File, State = #msstate { pending_gc_completion = Pending }) -> - State #msstate { pending_gc_completion = - rabbit_misc:orddict_cons(File, Op, Pending) }. - -run_pending(Files, State) -> - lists:foldl( - fun (File, State1 = #msstate { pending_gc_completion = Pending }) -> - Pending1 = orddict:erase(File, Pending), - lists:foldl( - fun run_pending_action/2, - State1 #msstate { pending_gc_completion = Pending1 }, - lists:reverse(orddict:fetch(File, Pending))) - end, State, Files). - -run_pending_action({read, Guid, From}, State) -> - read_message(Guid, From, State); -run_pending_action({contains, Guid, From}, State) -> - contains_message(Guid, From, State); -run_pending_action({remove, Guid, CRef}, State) -> - remove_message(Guid, CRef, State). - -safe_ets_update_counter(Tab, Key, UpdateOp, SuccessFun, FailThunk) -> - try - SuccessFun(ets:update_counter(Tab, Key, UpdateOp)) - catch error:badarg -> FailThunk() - end. - -safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> - safe_ets_update_counter(Tab, Key, UpdateOp, fun (_) -> ok end, FailThunk). - -adjust_valid_total_size(File, Delta, State = #msstate { - sum_valid_data = SumValid, - file_summary_ets = FileSummaryEts }) -> - [_] = ets:update_counter(FileSummaryEts, File, - [{#file_summary.valid_total_size, Delta}]), - State #msstate { sum_valid_data = SumValid + Delta }. - -orddict_store(Key, Val, Dict) -> - false = orddict:is_key(Key, Dict), - orddict:store(Key, Val, Dict). - -update_pending_confirms(Fun, CRef, State = #msstate { clients = Clients, - cref_to_guids = CTG }) -> - case dict:fetch(CRef, Clients) of - {undefined, _CloseFDsFun} -> State; - {MsgOnDiskFun, _CloseFDsFun} -> CTG1 = Fun(MsgOnDiskFun, CTG), - State #msstate { cref_to_guids = CTG1 } - end. - -record_pending_confirm(CRef, Guid, State) -> - update_pending_confirms( - fun (_MsgOnDiskFun, CTG) -> - dict:update(CRef, fun (Guids) -> gb_sets:add(Guid, Guids) end, - gb_sets:singleton(Guid), CTG) - end, CRef, State). - -client_confirm(CRef, Guids, ActionTaken, State) -> - update_pending_confirms( - fun (MsgOnDiskFun, CTG) -> - MsgOnDiskFun(Guids, ActionTaken), - case dict:find(CRef, CTG) of - {ok, Gs} -> Guids1 = gb_sets:difference(Gs, Guids), - case gb_sets:is_empty(Guids1) of - true -> dict:erase(CRef, CTG); - false -> dict:store(CRef, Guids1, CTG) - end; - error -> CTG - end - end, CRef, State). - -%% Detect whether the Guid is older or younger than the client's death -%% msg (if there is one). If the msg is older than the client death -%% msg, and it has a 0 ref_count we must only alter the ref_count, not -%% rewrite the msg - rewriting it would make it younger than the death -%% msg and thus should be ignored. Note that this (correctly) returns -%% false when testing to remove the death msg itself. -should_mask_action(CRef, Guid, - State = #msstate { dying_clients = DyingClients }) -> - case {sets:is_element(CRef, DyingClients), index_lookup(Guid, State)} of - {false, Location} -> - {false, Location}; - {true, not_found} -> - {true, not_found}; - {true, #msg_location { file = File, offset = Offset, - ref_count = RefCount } = Location} -> - #msg_location { file = DeathFile, offset = DeathOffset } = - index_lookup(CRef, State), - {case {{DeathFile, DeathOffset} < {File, Offset}, RefCount} of - {true, _} -> true; - {false, 0} -> false_if_increment; - {false, _} -> false - end, Location} - end. - -%%---------------------------------------------------------------------------- -%% file helper functions -%%---------------------------------------------------------------------------- - -open_file(Dir, FileName, Mode) -> - file_handle_cache:open(form_filename(Dir, FileName), ?BINARY_MODE ++ Mode, - [{write_buffer, ?HANDLE_CACHE_BUFFER_SIZE}]). - -close_handle(Key, CState = #client_msstate { file_handle_cache = FHC }) -> - CState #client_msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, State = #msstate { file_handle_cache = FHC }) -> - State #msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, FHC) -> - case dict:find(Key, FHC) of - {ok, Hdl} -> ok = file_handle_cache:close(Hdl), - dict:erase(Key, FHC); - error -> FHC - end. - -mark_handle_open(FileHandlesEts, File, Ref) -> - %% This is fine to fail (already exists). Note it could fail with - %% the value being close, and not have it updated to open. - ets:insert_new(FileHandlesEts, {{Ref, File}, open}), - true. - -%% See comment in client_read3 - only call this when the file is locked -mark_handle_to_close(ClientRefs, FileHandlesEts, File, Invoke) -> - [ begin - case (ets:update_element(FileHandlesEts, Key, {2, close}) - andalso Invoke) of - true -> case dict:fetch(Ref, ClientRefs) of - {_MsgOnDiskFun, undefined} -> ok; - {_MsgOnDiskFun, CloseFDsFun} -> ok = CloseFDsFun() - end; - false -> ok - end - end || {{Ref, _File} = Key, open} <- - ets:match_object(FileHandlesEts, {{'_', File}, open}) ], - true. - -safe_file_delete_fun(File, Dir, FileHandlesEts) -> - fun () -> safe_file_delete(File, Dir, FileHandlesEts) end. - -safe_file_delete(File, Dir, FileHandlesEts) -> - %% do not match on any value - it's the absence of the row that - %% indicates the client has really closed the file. - case ets:match_object(FileHandlesEts, {{'_', File}, '_'}, 1) of - {[_|_], _Cont} -> false; - _ -> ok = file:delete( - form_filename(Dir, filenum_to_name(File))), - true - end. - -close_all_indicated(#client_msstate { file_handles_ets = FileHandlesEts, - client_ref = Ref } = - CState) -> - Objs = ets:match_object(FileHandlesEts, {{Ref, '_'}, close}), - {ok, lists:foldl(fun ({Key = {_Ref, File}, close}, CStateM) -> - true = ets:delete(FileHandlesEts, Key), - close_handle(File, CStateM) - end, CState, Objs)}. - -close_all_handles(CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_handle_cache = FHC, - client_ref = Ref }) -> - ok = dict:fold(fun (File, Hdl, ok) -> - true = ets:delete(FileHandlesEts, {Ref, File}), - file_handle_cache:close(Hdl) - end, ok, FHC), - CState #client_msstate { file_handle_cache = dict:new() }; - -close_all_handles(State = #msstate { file_handle_cache = FHC }) -> - ok = dict:fold(fun (_Key, Hdl, ok) -> file_handle_cache:close(Hdl) end, - ok, FHC), - State #msstate { file_handle_cache = dict:new() }. - -get_read_handle(FileNum, CState = #client_msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, CState #client_msstate { file_handle_cache = FHC2 }}; - -get_read_handle(FileNum, State = #msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, State #msstate { file_handle_cache = FHC2 }}. - -get_read_handle(FileNum, FHC, Dir) -> - case dict:find(FileNum, FHC) of - {ok, Hdl} -> {Hdl, FHC}; - error -> {ok, Hdl} = open_file(Dir, filenum_to_name(FileNum), - ?READ_MODE), - {Hdl, dict:store(FileNum, Hdl, FHC)} - end. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file_handle_cache:position(Hdl, FileSizeLimit), - ok = file_handle_cache:truncate(Hdl), - {ok, FinalPos} = file_handle_cache:position(Hdl, FinalPos), - ok. - -truncate_and_extend_file(Hdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file_handle_cache:position(Hdl, Lowpoint), - ok = file_handle_cache:truncate(Hdl), - ok = preallocate(Hdl, Highpoint, Lowpoint). - -form_filename(Dir, Name) -> filename:join(Dir, Name). - -filenum_to_name(File) -> integer_to_list(File) ++ ?FILE_EXTENSION. - -filename_to_num(FileName) -> list_to_integer(filename:rootname(FileName)). - -list_sorted_file_names(Dir, Ext) -> - lists:sort(fun (A, B) -> filename_to_num(A) < filename_to_num(B) end, - filelib:wildcard("*" ++ Ext, Dir)). - -%%---------------------------------------------------------------------------- -%% message cache helper functions -%%---------------------------------------------------------------------------- - -maybe_insert_into_cache(DedupCacheEts, RefCount, Guid, Msg) - when RefCount > 1 -> - update_msg_cache(DedupCacheEts, Guid, Msg); -maybe_insert_into_cache(_DedupCacheEts, _RefCount, _Guid, _Msg) -> - ok. - -update_msg_cache(CacheEts, Guid, Msg) -> - case ets:insert_new(CacheEts, {Guid, Msg, 1}) of - true -> ok; - false -> safe_ets_update_counter_ok( - CacheEts, Guid, {3, +1}, - fun () -> update_msg_cache(CacheEts, Guid, Msg) end) - end. - -remove_cache_entry(DedupCacheEts, Guid) -> - true = ets:delete(DedupCacheEts, Guid), - ok. - -fetch_and_increment_cache(DedupCacheEts, Guid) -> - case ets:lookup(DedupCacheEts, Guid) of - [] -> - not_found; - [{_Guid, Msg, _RefCount}] -> - safe_ets_update_counter_ok( - DedupCacheEts, Guid, {3, +1}, - %% someone has deleted us in the meantime, insert us - fun () -> ok = update_msg_cache(DedupCacheEts, Guid, Msg) end), - Msg - end. - -decrement_cache(DedupCacheEts, Guid) -> - true = safe_ets_update_counter( - DedupCacheEts, Guid, {3, -1}, - fun (N) when N =< 0 -> true = ets:delete(DedupCacheEts, Guid); - (_N) -> true - end, - %% Guid is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message held in RAM) - fun () -> true end), - ok. - -%%---------------------------------------------------------------------------- -%% index -%%---------------------------------------------------------------------------- - -index_lookup_positive_ref_count(Key, State) -> - case index_lookup(Key, State) of - not_found -> not_found; - #msg_location { ref_count = 0 } -> not_found; - #msg_location {} = MsgLocation -> MsgLocation - end. - -index_update_ref_count(Key, RefCount, State) -> - index_update_fields(Key, {#msg_location.ref_count, RefCount}, State). - -index_lookup(Key, #client_msstate { index_module = Index, - index_state = State }) -> - Index:lookup(Key, State); - -index_lookup(Key, #msstate { index_module = Index, index_state = State }) -> - Index:lookup(Key, State). - -index_insert(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:insert(Obj, State). - -index_update(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:update(Obj, State). - -index_update_fields(Key, Updates, #msstate { index_module = Index, - index_state = State }) -> - Index:update_fields(Key, Updates, State). - -index_delete(Key, #msstate { index_module = Index, index_state = State }) -> - Index:delete(Key, State). - -index_delete_by_file(File, #msstate { index_module = Index, - index_state = State }) -> - Index:delete_by_file(File, State). - -%%---------------------------------------------------------------------------- -%% shutdown and recovery -%%---------------------------------------------------------------------------- - -recover_index_and_client_refs(IndexModule, _Recover, undefined, Dir, _Server) -> - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, false, _ClientRefs, Dir, Server) -> - rabbit_log:warning("~w: rebuilding indices from scratch~n", [Server]), - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, true, ClientRefs, Dir, Server) -> - Fresh = fun (ErrorMsg, ErrorArgs) -> - rabbit_log:warning("~w: " ++ ErrorMsg ++ "~n" - "rebuilding indices from scratch~n", - [Server | ErrorArgs]), - {false, IndexModule:new(Dir), []} - end, - case read_recovery_terms(Dir) of - {false, Error} -> - Fresh("failed to read recovery terms: ~p", [Error]); - {true, Terms} -> - RecClientRefs = proplists:get_value(client_refs, Terms, []), - RecIndexModule = proplists:get_value(index_module, Terms), - case (lists:sort(ClientRefs) =:= lists:sort(RecClientRefs) - andalso IndexModule =:= RecIndexModule) of - true -> case IndexModule:recover(Dir) of - {ok, IndexState1} -> - {true, IndexState1, ClientRefs}; - {error, Error} -> - Fresh("failed to recover index: ~p", [Error]) - end; - false -> Fresh("recovery terms differ from present", []) - end - end. - -store_recovery_terms(Terms, Dir) -> - rabbit_misc:write_term_file(filename:join(Dir, ?CLEAN_FILENAME), Terms). - -read_recovery_terms(Dir) -> - Path = filename:join(Dir, ?CLEAN_FILENAME), - case rabbit_misc:read_term_file(Path) of - {ok, Terms} -> case file:delete(Path) of - ok -> {true, Terms}; - {error, Error} -> {false, Error} - end; - {error, Error} -> {false, Error} - end. - -store_file_summary(Tid, Dir) -> - ok = ets:tab2file(Tid, filename:join(Dir, ?FILE_SUMMARY_FILENAME), - [{extended_info, [object_count]}]). - -recover_file_summary(false, _Dir) -> - %% TODO: the only reason for this to be an *ordered*_set is so - %% that a) maybe_compact can start a traversal from the eldest - %% file, and b) build_index in fast recovery mode can easily - %% identify the current file. It's awkward to have both that - %% odering and the left/right pointers in the entries - replacing - %% the former with some additional bit of state would be easy, but - %% ditching the latter would be neater. - {false, ets:new(rabbit_msg_store_file_summary, - [ordered_set, public, {keypos, #file_summary.file}])}; -recover_file_summary(true, Dir) -> - Path = filename:join(Dir, ?FILE_SUMMARY_FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> file:delete(Path), - {true, Tid}; - {error, _Error} -> recover_file_summary(false, Dir) - end. - -count_msg_refs(Gen, Seed, State) -> - case Gen(Seed) of - finished -> - ok; - {_Guid, 0, Next} -> - count_msg_refs(Gen, Next, State); - {Guid, Delta, Next} -> - ok = case index_lookup(Guid, State) of - not_found -> - index_insert(#msg_location { guid = Guid, - file = undefined, - ref_count = Delta }, - State); - #msg_location { ref_count = RefCount } = StoreEntry -> - NewRefCount = RefCount + Delta, - case NewRefCount of - 0 -> index_delete(Guid, State); - _ -> index_update(StoreEntry #msg_location { - ref_count = NewRefCount }, - State) - end - end, - count_msg_refs(Gen, Next, State) - end. - -recover_crashed_compactions(Dir) -> - FileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION), - TmpFileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION_TMP), - lists:foreach( - fun (TmpFileName) -> - NonTmpRelatedFileName = - filename:rootname(TmpFileName) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFileName, FileNames), - ok = recover_crashed_compaction( - Dir, TmpFileName, NonTmpRelatedFileName) - end, TmpFileNames), - TmpFileNames == []. - -recover_crashed_compaction(Dir, TmpFileName, NonTmpRelatedFileName) -> - %% Because a msg can legitimately appear multiple times in the - %% same file, identifying the contents of the tmp file and where - %% they came from is non-trivial. If we are recovering a crashed - %% compaction then we will be rebuilding the index, which can cope - %% with duplicates appearing. Thus the simplest and safest thing - %% to do is to append the contents of the tmp file to its main - %% file. - {ok, TmpHdl} = open_file(Dir, TmpFileName, ?READ_MODE), - {ok, MainHdl} = open_file(Dir, NonTmpRelatedFileName, - ?READ_MODE ++ ?WRITE_MODE), - {ok, _End} = file_handle_cache:position(MainHdl, eof), - Size = filelib:file_size(form_filename(Dir, TmpFileName)), - {ok, Size} = file_handle_cache:copy(TmpHdl, MainHdl, Size), - ok = file_handle_cache:close(MainHdl), - ok = file_handle_cache:delete(TmpHdl), - ok. - -scan_file_for_valid_messages(Dir, FileName) -> - case open_file(Dir, FileName, ?READ_MODE) of - {ok, Hdl} -> Valid = rabbit_msg_file:scan( - Hdl, filelib:file_size( - form_filename(Dir, FileName)), - fun scan_fun/2, []), - %% if something really bad has happened, - %% the close could fail, but ignore - file_handle_cache:close(Hdl), - Valid; - {error, enoent} -> {ok, [], 0}; - {error, Reason} -> {error, {unable_to_scan_file, FileName, Reason}} - end. - -scan_fun({Guid, TotalSize, Offset, _Msg}, Acc) -> - [{Guid, TotalSize, Offset} | Acc]. - -%% Takes the list in *ascending* order (i.e. eldest message -%% first). This is the opposite of what scan_file_for_valid_messages -%% produces. The list of msgs that is produced is youngest first. -drop_contiguous_block_prefix(L) -> drop_contiguous_block_prefix(L, 0). - -drop_contiguous_block_prefix([], ExpectedOffset) -> - {ExpectedOffset, []}; -drop_contiguous_block_prefix([#msg_location { offset = ExpectedOffset, - total_size = TotalSize } | Tail], - ExpectedOffset) -> - ExpectedOffset1 = ExpectedOffset + TotalSize, - drop_contiguous_block_prefix(Tail, ExpectedOffset1); -drop_contiguous_block_prefix(MsgsAfterGap, ExpectedOffset) -> - {ExpectedOffset, MsgsAfterGap}. - -build_index(true, _StartupFunState, - State = #msstate { file_summary_ets = FileSummaryEts }) -> - ets:foldl( - fun (#file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize, - file = File }, - {_Offset, State1 = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize }}) -> - {FileSize, State1 #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize, - current_file = File }} - end, {0, State}, FileSummaryEts); -build_index(false, {MsgRefDeltaGen, MsgRefDeltaGenInit}, - State = #msstate { dir = Dir }) -> - ok = count_msg_refs(MsgRefDeltaGen, MsgRefDeltaGenInit, State), - {ok, Pid} = gatherer:start_link(), - case [filename_to_num(FileName) || - FileName <- list_sorted_file_names(Dir, ?FILE_EXTENSION)] of - [] -> build_index(Pid, undefined, [State #msstate.current_file], - State); - Files -> {Offset, State1} = build_index(Pid, undefined, Files, State), - {Offset, lists:foldl(fun delete_file_if_empty/2, - State1, Files)} - end. - -build_index(Gatherer, Left, [], - State = #msstate { file_summary_ets = FileSummaryEts, - sum_valid_data = SumValid, - sum_file_size = SumFileSize }) -> - case gatherer:out(Gatherer) of - empty -> - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer), - ok = index_delete_by_file(undefined, State), - Offset = case ets:lookup(FileSummaryEts, Left) of - [] -> 0; - [#file_summary { file_size = FileSize }] -> FileSize - end, - {Offset, State #msstate { current_file = Left }}; - {value, #file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize } = FileSummary} -> - true = ets:insert_new(FileSummaryEts, FileSummary), - build_index(Gatherer, Left, [], - State #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize }) - end; -build_index(Gatherer, Left, [File|Files], State) -> - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> build_index_worker(Gatherer, State, - Left, File, Files) - end), - build_index(Gatherer, File, Files, State). - -build_index_worker(Gatherer, State = #msstate { dir = Dir }, - Left, File, Files) -> - {ok, Messages, FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - {ValidMessages, ValidTotalSize} = - lists:foldl( - fun (Obj = {Guid, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case index_lookup(Guid, State) of - #msg_location { file = undefined } = StoreEntry -> - ok = index_update(StoreEntry #msg_location { - file = File, offset = Offset, - total_size = TotalSize }, - State), - {[Obj | VMAcc], VTSAcc + TotalSize}; - _ -> - {VMAcc, VTSAcc} - end - end, {[], 0}, Messages), - {Right, FileSize1} = - case Files of - %% if it's the last file, we'll truncate to remove any - %% rubbish above the last valid message. This affects the - %% file size. - [] -> {undefined, case ValidMessages of - [] -> 0; - _ -> {_Guid, TotalSize, Offset} = - lists:last(ValidMessages), - Offset + TotalSize - end}; - [F|_] -> {F, FileSize} - end, - ok = gatherer:in(Gatherer, #file_summary { - file = File, - valid_total_size = ValidTotalSize, - left = Left, - right = Right, - file_size = FileSize1, - locked = false, - readers = 0 }), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- internal -%%---------------------------------------------------------------------------- - -maybe_roll_to_new_file( - Offset, - State = #msstate { dir = Dir, - current_file_handle = CurHdl, - current_file = CurFile, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - file_size_limit = FileSizeLimit }) - when Offset >= FileSizeLimit -> - State1 = internal_sync(State), - ok = file_handle_cache:close(CurHdl), - NextFile = CurFile + 1, - {ok, NextHdl} = open_file(Dir, filenum_to_name(NextFile), ?WRITE_MODE), - true = ets:insert_new(FileSummaryEts, #file_summary { - file = NextFile, - valid_total_size = 0, - left = CurFile, - right = undefined, - file_size = 0, - locked = false, - readers = 0 }), - true = ets:update_element(FileSummaryEts, CurFile, - {#file_summary.right, NextFile}), - true = ets:match_delete(CurFileCacheEts, {'_', '_', 0}), - maybe_compact(State1 #msstate { current_file_handle = NextHdl, - current_file = NextFile }); -maybe_roll_to_new_file(_, State) -> - State. - -maybe_compact(State = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize, - gc_pid = GCPid, - pending_gc_completion = Pending, - file_summary_ets = FileSummaryEts, - file_size_limit = FileSizeLimit }) - when (SumFileSize > 2 * FileSizeLimit andalso - (SumFileSize - SumValid) / SumFileSize > ?GARBAGE_FRACTION) -> - %% TODO: the algorithm here is sub-optimal - it may result in a - %% complete traversal of FileSummaryEts. - case ets:first(FileSummaryEts) of - '$end_of_table' -> - State; - First -> - case find_files_to_combine(FileSummaryEts, FileSizeLimit, - ets:lookup(FileSummaryEts, First)) of - not_found -> - State; - {Src, Dst} -> - Pending1 = orddict_store(Dst, [], - orddict_store(Src, [], Pending)), - State1 = close_handle(Src, close_handle(Dst, State)), - true = ets:update_element(FileSummaryEts, Src, - {#file_summary.locked, true}), - true = ets:update_element(FileSummaryEts, Dst, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:combine(GCPid, Src, Dst), - State1 #msstate { pending_gc_completion = Pending1 } - end - end; -maybe_compact(State) -> - State. - -find_files_to_combine(FileSummaryEts, FileSizeLimit, - [#file_summary { file = Dst, - valid_total_size = DstValid, - right = Src, - locked = DstLocked }]) -> - case Src of - undefined -> - not_found; - _ -> - [#file_summary { file = Src, - valid_total_size = SrcValid, - left = Dst, - right = SrcRight, - locked = SrcLocked }] = Next = - ets:lookup(FileSummaryEts, Src), - case SrcRight of - undefined -> not_found; - _ -> case (DstValid + SrcValid =< FileSizeLimit) andalso - (DstValid > 0) andalso (SrcValid > 0) andalso - not (DstLocked orelse SrcLocked) of - true -> {Src, Dst}; - false -> find_files_to_combine( - FileSummaryEts, FileSizeLimit, Next) - end - end - end. - -delete_file_if_empty(File, State = #msstate { current_file = File }) -> - State; -delete_file_if_empty(File, State = #msstate { - gc_pid = GCPid, - file_summary_ets = FileSummaryEts, - pending_gc_completion = Pending }) -> - [#file_summary { valid_total_size = ValidData, - locked = false }] = - ets:lookup(FileSummaryEts, File), - case ValidData of - 0 -> %% don't delete the file_summary_ets entry for File here - %% because we could have readers which need to be able to - %% decrement the readers count. - true = ets:update_element(FileSummaryEts, File, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:delete(GCPid, File), - Pending1 = orddict_store(File, [], Pending), - close_handle(File, - State #msstate { pending_gc_completion = Pending1 }); - _ -> State - end. - -cleanup_after_file_deletion(File, - #msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - %% Ensure that any clients that have open fhs to the file close - %% them before using them again. This has to be done here (given - %% it's done in the msg_store, and not the gc), and not when - %% starting up the GC, because if done when starting up the GC, - %% the client could find the close, and close and reopen the fh, - %% whilst the GC is waiting for readers to disappear, before it's - %% actually done the GC. - true = mark_handle_to_close(Clients, FileHandlesEts, File, true), - [#file_summary { left = Left, - right = Right, - locked = true, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - %% We'll never delete the current file, so right is never undefined - true = Right =/= undefined, %% ASSERTION - true = ets:update_element(FileSummaryEts, Right, - {#file_summary.left, Left}), - %% ensure the double linked list is maintained - true = case Left of - undefined -> true; %% File is the eldest file (left-most) - _ -> ets:update_element(FileSummaryEts, Left, - {#file_summary.right, Right}) - end, - true = ets:delete(FileSummaryEts, File), - ok. - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- external -%%---------------------------------------------------------------------------- - -has_readers(File, #gc_state { file_summary_ets = FileSummaryEts }) -> - [#file_summary { locked = true, readers = Count }] = - ets:lookup(FileSummaryEts, File), - Count /= 0. - -combine_files(Source, Destination, - State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { - readers = 0, - left = Destination, - valid_total_size = SourceValid, - file_size = SourceFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Source), - [#file_summary { - readers = 0, - right = Source, - valid_total_size = DestinationValid, - file_size = DestinationFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Destination), - - SourceName = filenum_to_name(Source), - DestinationName = filenum_to_name(Destination), - {ok, SourceHdl} = open_file(Dir, SourceName, - ?READ_AHEAD_MODE), - {ok, DestinationHdl} = open_file(Dir, DestinationName, - ?READ_AHEAD_MODE ++ ?WRITE_MODE), - TotalValidData = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - {DestinationWorkList, DestinationValid} = - load_and_vacuum_message_file(Destination, State), - {DestinationContiguousTop, DestinationWorkListTail} = - drop_contiguous_block_prefix(DestinationWorkList), - case DestinationWorkListTail of - [] -> ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData); - _ -> Tmp = filename:rootname(DestinationName) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = open_file(Dir, Tmp, ?READ_AHEAD_MODE++?WRITE_MODE), - ok = copy_messages( - DestinationWorkListTail, DestinationContiguousTop, - DestinationValid, DestinationHdl, TmpHdl, Destination, - State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage - %% from Destination, and index_state has been updated to - %% reflect the compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file_handle_cache:position(TmpHdl, 0), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData), - {ok, TmpSize} = - file_handle_cache:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file_handle_cache:sync(DestinationHdl), - ok = file_handle_cache:delete(TmpHdl) - end, - {SourceWorkList, SourceValid} = load_and_vacuum_message_file(Source, State), - ok = copy_messages(SourceWorkList, DestinationValid, TotalValidData, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file_handle_cache:close(DestinationHdl), - ok = file_handle_cache:close(SourceHdl), - - %% don't update dest.right, because it could be changing at the - %% same time - true = ets:update_element( - FileSummaryEts, Destination, - [{#file_summary.valid_total_size, TotalValidData}, - {#file_summary.file_size, TotalValidData}]), - - Reclaimed = SourceFileSize + DestinationFileSize - TotalValidData, - gen_server2:cast(Server, {combine_files, Source, Destination, Reclaimed}), - safe_file_delete_fun(Source, Dir, FileHandlesEts). - -delete_file(File, State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { valid_total_size = 0, - locked = true, - file_size = FileSize, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - {[], 0} = load_and_vacuum_message_file(File, State), - gen_server2:cast(Server, {delete_file, File, FileSize}), - safe_file_delete_fun(File, Dir, FileHandlesEts). - -load_and_vacuum_message_file(File, #gc_state { dir = Dir, - index_module = Index, - index_state = IndexState }) -> - %% Messages here will be end-of-file at start-of-list - {ok, Messages, _FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - %% foldl will reverse so will end up with msgs in ascending offset order - lists:foldl( - fun ({Guid, TotalSize, Offset}, Acc = {List, Size}) -> - case Index:lookup(Guid, IndexState) of - #msg_location { file = File, total_size = TotalSize, - offset = Offset, ref_count = 0 } = Entry -> - ok = Index:delete_object(Entry, IndexState), - Acc; - #msg_location { file = File, total_size = TotalSize, - offset = Offset } = Entry -> - {[ Entry | List ], TotalSize + Size}; - _ -> - Acc - end - end, {[], 0}, Messages). - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, #gc_state { index_module = Index, - index_state = IndexState }) -> - Copy = fun ({BlockStart, BlockEnd}) -> - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file_handle_cache:position(SourceHdl, BlockStart), - {ok, BSize} = - file_handle_cache:copy(SourceHdl, DestinationHdl, BSize) - end, - case - lists:foldl( - fun (#msg_location { guid = Guid, offset = Offset, - total_size = TotalSize }, - {CurOffset, Block = {BlockStart, BlockEnd}}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - %% update MsgLocation to reflect change of file and offset - ok = Index:update_fields(Guid, - [{#msg_location.file, Destination}, - {#msg_location.offset, CurOffset}], - IndexState), - {CurOffset + TotalSize, - case BlockEnd of - undefined -> - %% base case, called only for the first list elem - {Offset, Offset + TotalSize}; - Offset -> - %% extend the current block because the - %% next msg follows straight on - {BlockStart, BlockEnd + TotalSize}; - _ -> - %% found a gap, so actually do the work for - %% the previous block - Copy(Block), - {Offset, Offset + TotalSize} - end} - end, {InitOffset, {undefined, undefined}}, WorkList) of - {FinalOffset, Block} -> - case WorkList of - [] -> ok; - _ -> Copy(Block), %% do the last remaining block - ok = file_handle_cache:sync(DestinationHdl) - end; - {FinalOffsetZ, _Block} -> - {gc_error, [{expected, FinalOffset}, - {got, FinalOffsetZ}, - {destination, Destination}]} - end. - -force_recovery(BaseDir, Store) -> - Dir = filename:join(BaseDir, atom_to_list(Store)), - file:delete(filename:join(Dir, ?CLEAN_FILENAME)), - recover_crashed_compactions(BaseDir), - ok. - -foreach_file(D, Fun, Files) -> - [Fun(filename:join(D, File)) || File <- Files]. - -foreach_file(D1, D2, Fun, Files) -> - [Fun(filename:join(D1, File), filename:join(D2, File)) || File <- Files]. - -transform_dir(BaseDir, Store, TransformFun) -> - Dir = filename:join(BaseDir, atom_to_list(Store)), - TmpDir = filename:join(Dir, ?TRANSFORM_TMP), - TransformFile = fun (A, B) -> transform_msg_file(A, B, TransformFun) end, - case filelib:is_dir(TmpDir) of - true -> throw({error, transform_failed_previously}); - false -> FileList = list_sorted_file_names(Dir, ?FILE_EXTENSION), - foreach_file(Dir, TmpDir, TransformFile, FileList), - foreach_file(Dir, fun file:delete/1, FileList), - foreach_file(TmpDir, Dir, fun file:copy/2, FileList), - foreach_file(TmpDir, fun file:delete/1, FileList), - ok = file:del_dir(TmpDir) - end. - -transform_msg_file(FileOld, FileNew, TransformFun) -> - rabbit_misc:ensure_parent_dirs_exist(FileNew), - {ok, RefOld} = file_handle_cache:open(FileOld, [raw, binary, read], []), - {ok, RefNew} = file_handle_cache:open(FileNew, [raw, binary, write], - [{write_buffer, - ?HANDLE_CACHE_BUFFER_SIZE}]), - {ok, _Acc, _IgnoreSize} = - rabbit_msg_file:scan( - RefOld, filelib:file_size(FileOld), - fun({Guid, _Size, _Offset, BinMsg}, ok) -> - {ok, MsgNew} = TransformFun(binary_to_term(BinMsg)), - {ok, _} = rabbit_msg_file:append(RefNew, Guid, MsgNew), - ok - end, ok), - file_handle_cache:close(RefOld), - file_handle_cache:close(RefNew), - ok. diff --git a/src/rabbit_msg_store_ets_index.erl b/src/rabbit_msg_store_ets_index.erl deleted file mode 100644 index 077400d6..00000000 --- a/src/rabbit_msg_store_ets_index.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_ets_index). - --behaviour(rabbit_msg_store_index). - --export([new/1, recover/1, - lookup/2, insert/2, update/2, update_fields/3, delete/2, - delete_object/2, delete_by_file/2, terminate/1]). - --define(MSG_LOC_NAME, rabbit_msg_store_ets_index). --define(FILENAME, "msg_store_index.ets"). - --include("rabbit_msg_store_index.hrl"). - --record(state, { table, dir }). - -new(Dir) -> - file:delete(filename:join(Dir, ?FILENAME)), - Tid = ets:new(?MSG_LOC_NAME, [set, public, {keypos, #msg_location.guid}]), - #state { table = Tid, dir = Dir }. - -recover(Dir) -> - Path = filename:join(Dir, ?FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> file:delete(Path), - {ok, #state { table = Tid, dir = Dir }}; - Error -> Error - end. - -lookup(Key, State) -> - case ets:lookup(State #state.table, Key) of - [] -> not_found; - [Entry] -> Entry - end. - -insert(Obj, State) -> - true = ets:insert_new(State #state.table, Obj), - ok. - -update(Obj, State) -> - true = ets:insert(State #state.table, Obj), - ok. - -update_fields(Key, Updates, State) -> - true = ets:update_element(State #state.table, Key, Updates), - ok. - -delete(Key, State) -> - true = ets:delete(State #state.table, Key), - ok. - -delete_object(Obj, State) -> - true = ets:delete_object(State #state.table, Obj), - ok. - -delete_by_file(File, State) -> - MatchHead = #msg_location { file = File, _ = '_' }, - ets:select_delete(State #state.table, [{MatchHead, [], [true]}]), - ok. - -terminate(#state { table = MsgLocations, dir = Dir }) -> - ok = ets:tab2file(MsgLocations, filename:join(Dir, ?FILENAME), - [{extended_info, [object_count]}]), - ets:delete(MsgLocations). diff --git a/src/rabbit_msg_store_gc.erl b/src/rabbit_msg_store_gc.erl deleted file mode 100644 index 77f1f04e..00000000 --- a/src/rabbit_msg_store_gc.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_gc). - --behaviour(gen_server2). - --export([start_link/1, combine/3, delete/2, no_readers/2, stop/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - --record(state, - { pending_no_readers, - on_action, - msg_store_state - }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (rabbit_msg_store:gc_state()) -> - rabbit_types:ok_pid_or_error()). --spec(combine/3 :: (pid(), rabbit_msg_store:file_num(), - rabbit_msg_store:file_num()) -> 'ok'). --spec(delete/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(no_readers/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(stop/1 :: (pid()) -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(MsgStoreState) -> - gen_server2:start_link(?MODULE, [MsgStoreState], - [{timeout, infinity}]). - -combine(Server, Source, Destination) -> - gen_server2:cast(Server, {combine, Source, Destination}). - -delete(Server, File) -> - gen_server2:cast(Server, {delete, File}). - -no_readers(Server, File) -> - gen_server2:cast(Server, {no_readers, File}). - -stop(Server) -> - gen_server2:call(Server, stop, infinity). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- - -init([MsgStoreState]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - {ok, #state { pending_no_readers = dict:new(), - on_action = [], - msg_store_state = MsgStoreState }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}. - -handle_cast({combine, Source, Destination}, State) -> - {noreply, attempt_action(combine, [Source, Destination], State), hibernate}; - -handle_cast({delete, File}, State) -> - {noreply, attempt_action(delete, [File], State), hibernate}; - -handle_cast({no_readers, File}, - State = #state { pending_no_readers = Pending }) -> - {noreply, case dict:find(File, Pending) of - error -> - State; - {ok, {Action, Files}} -> - Pending1 = dict:erase(File, Pending), - attempt_action( - Action, Files, - State #state { pending_no_readers = Pending1 }) - end, hibernate}; - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, State, hibernate}. - -handle_info(Info, State) -> - {stop, {unhandled_info, Info}, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -attempt_action(Action, Files, - State = #state { pending_no_readers = Pending, - on_action = Thunks, - msg_store_state = MsgStoreState }) -> - case [File || File <- Files, - rabbit_msg_store:has_readers(File, MsgStoreState)] of - [] -> State #state { - on_action = lists:filter( - fun (Thunk) -> not Thunk() end, - [do_action(Action, Files, MsgStoreState) | - Thunks]) }; - [File | _] -> Pending1 = dict:store(File, {Action, Files}, Pending), - State #state { pending_no_readers = Pending1 } - end. - -do_action(combine, [Source, Destination], MsgStoreState) -> - rabbit_msg_store:combine_files(Source, Destination, MsgStoreState); -do_action(delete, [File], MsgStoreState) -> - rabbit_msg_store:delete_file(File, MsgStoreState). diff --git a/src/rabbit_msg_store_index.erl b/src/rabbit_msg_store_index.erl deleted file mode 100644 index ef8b7cdf..00000000 --- a/src/rabbit_msg_store_index.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_index). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [{new, 1}, - {recover, 1}, - {lookup, 2}, - {insert, 2}, - {update, 2}, - {update_fields, 3}, - {delete, 2}, - {delete_by_file, 2}, - {terminate, 1}]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl deleted file mode 100644 index c500548a..00000000 --- a/src/rabbit_net.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_net). --include("rabbit.hrl"). - --export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - async_recv/3, port_command/2, send/2, close/1, - sockname/1, peername/1, peercert/1]). - -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([socket/0]). - --type(stat_option() :: - 'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' | - 'send_cnt' | 'send_max' | 'send_avg' | 'send_oct' | 'send_pend'). --type(ok_val_or_error(A) :: rabbit_types:ok_or_error2(A, any())). --type(ok_or_any_error() :: rabbit_types:ok_or_error(any())). --type(socket() :: port() | #ssl_socket{}). - --spec(is_ssl/1 :: (socket()) -> boolean()). --spec(ssl_info/1 :: (socket()) - -> 'nossl' | ok_val_or_error( - {atom(), {atom(), atom(), atom()}})). --spec(controlling_process/2 :: (socket(), pid()) -> ok_or_any_error()). --spec(getstat/2 :: - (socket(), [stat_option()]) - -> ok_val_or_error([{stat_option(), integer()}])). --spec(async_recv/3 :: - (socket(), integer(), timeout()) -> rabbit_types:ok(any())). --spec(port_command/2 :: (socket(), iolist()) -> 'true'). --spec(send/2 :: (socket(), binary() | iolist()) -> ok_or_any_error()). --spec(close/1 :: (socket()) -> ok_or_any_error()). --spec(sockname/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peername/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peercert/1 :: - (socket()) - -> 'nossl' | ok_val_or_error(rabbit_ssl:certificate())). - --endif. - -%%--------------------------------------------------------------------------- - --define(IS_SSL(Sock), is_record(Sock, ssl_socket)). - -is_ssl(Sock) -> ?IS_SSL(Sock). - -ssl_info(Sock) when ?IS_SSL(Sock) -> - ssl:connection_info(Sock#ssl_socket.ssl); -ssl_info(_Sock) -> - nossl. - -controlling_process(Sock, Pid) when ?IS_SSL(Sock) -> - ssl:controlling_process(Sock#ssl_socket.ssl, Pid); -controlling_process(Sock, Pid) when is_port(Sock) -> - gen_tcp:controlling_process(Sock, Pid). - -getstat(Sock, Stats) when ?IS_SSL(Sock) -> - inet:getstat(Sock#ssl_socket.tcp, Stats); -getstat(Sock, Stats) when is_port(Sock) -> - inet:getstat(Sock, Stats). - -async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> - Pid = self(), - Ref = make_ref(), - - spawn(fun () -> Pid ! {inet_async, Sock, Ref, - ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)} - end), - - {ok, Ref}; -async_recv(Sock, Length, infinity) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, -1); -async_recv(Sock, Length, Timeout) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, Timeout). - -port_command(Sock, Data) when ?IS_SSL(Sock) -> - case ssl:send(Sock#ssl_socket.ssl, Data) of - ok -> self() ! {inet_reply, Sock, ok}, - true; - {error, Reason} -> erlang:error(Reason) - end; -port_command(Sock, Data) when is_port(Sock) -> - erlang:port_command(Sock, Data). - -send(Sock, Data) when ?IS_SSL(Sock) -> ssl:send(Sock#ssl_socket.ssl, Data); -send(Sock, Data) when is_port(Sock) -> gen_tcp:send(Sock, Data). - -close(Sock) when ?IS_SSL(Sock) -> ssl:close(Sock#ssl_socket.ssl); -close(Sock) when is_port(Sock) -> gen_tcp:close(Sock). - -sockname(Sock) when ?IS_SSL(Sock) -> ssl:sockname(Sock#ssl_socket.ssl); -sockname(Sock) when is_port(Sock) -> inet:sockname(Sock). - -peername(Sock) when ?IS_SSL(Sock) -> ssl:peername(Sock#ssl_socket.ssl); -peername(Sock) when is_port(Sock) -> inet:peername(Sock). - -peercert(Sock) when ?IS_SSL(Sock) -> ssl:peercert(Sock#ssl_socket.ssl); -peercert(Sock) when is_port(Sock) -> nossl. diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl deleted file mode 100644 index 36f61628..00000000 --- a/src/rabbit_networking.erl +++ /dev/null @@ -1,390 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_networking). - --export([boot/0, start/0, start_tcp_listener/1, start_ssl_listener/2, - stop_tcp_listener/1, on_node_down/1, active_listeners/0, - node_listeners/1, connections/0, connection_info_keys/0, - connection_info/1, connection_info/2, - connection_info_all/0, connection_info_all/1, - close_connection/2]). - -%%used by TCP-based transports, e.g. STOMP adapter --export([check_tcp_listener_address/2]). - --export([tcp_listener_started/3, tcp_listener_stopped/3, - start_client/1, start_ssl_client/2]). - --include("rabbit.hrl"). --include_lib("kernel/include/inet.hrl"). - --define(SSL_TIMEOUT, 5). %% seconds - --define(FIRST_TEST_BIND_PORT, 10000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([ip_port/0, hostname/0]). - --type(family() :: atom()). --type(listener_config() :: ip_port() | - {hostname(), ip_port()} | - {hostname(), ip_port(), family()}). - --spec(start/0 :: () -> 'ok'). --spec(start_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(start_ssl_listener/2 :: - (listener_config(), rabbit_types:infos()) -> 'ok'). --spec(stop_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(active_listeners/0 :: () -> [rabbit_types:listener()]). --spec(node_listeners/1 :: (node()) -> [rabbit_types:listener()]). --spec(connections/0 :: () -> [rabbit_types:connection()]). --spec(connection_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(connection_info/1 :: - (rabbit_types:connection()) -> rabbit_types:infos()). --spec(connection_info/2 :: - (rabbit_types:connection(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(connection_info_all/0 :: () -> [rabbit_types:infos()]). --spec(connection_info_all/1 :: - (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(close_connection/2 :: (pid(), string()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(check_tcp_listener_address/2 :: (atom(), listener_config()) - -> [{inet:ip_address(), ip_port(), family(), atom()}]). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - ok = start(), - ok = boot_tcp(), - ok = boot_ssl(). - -boot_tcp() -> - {ok, TcpListeners} = application:get_env(tcp_listeners), - [ok = start_tcp_listener(Listener) || Listener <- TcpListeners], - ok. - -boot_ssl() -> - case application:get_env(ssl_listeners) of - {ok, []} -> - ok; - {ok, SslListeners} -> - ok = rabbit_misc:start_applications([crypto, public_key, ssl]), - {ok, SslOptsConfig} = application:get_env(ssl_options), - % unknown_ca errors are silently ignored prior to R14B unless we - % supply this verify_fun - remove when at least R14B is required - SslOpts = - case proplists:get_value(verify, SslOptsConfig, verify_none) of - verify_none -> SslOptsConfig; - verify_peer -> [{verify_fun, fun([]) -> true; - ([_|_]) -> false - end} - | SslOptsConfig] - end, - [start_ssl_listener(Listener, SslOpts) || Listener <- SslListeners], - ok - end. - -start() -> - {ok,_} = supervisor2:start_child( - rabbit_sup, - {rabbit_tcp_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_tcp_client_sup}, - {rabbit_connection_sup,start_link,[]}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%% inet_parse:address takes care of ip string, like "0.0.0.0" -%% inet:getaddr returns immediately for ip tuple {0,0,0,0}, -%% and runs 'inet_gethost' port process for dns lookups. -%% On Windows inet:getaddr runs dns resolver for ip string, which may fail. - -getaddr(Host, Family) -> - case inet_parse:address(Host) of - {ok, IPAddress} -> [{IPAddress, resolve_family(IPAddress, Family)}]; - {error, _} -> gethostaddr(Host, Family) - end. - -gethostaddr(Host, auto) -> - Lookups = [{Family, inet:getaddr(Host, Family)} || Family <- [inet, inet6]], - case [{IP, Family} || {Family, {ok, IP}} <- Lookups] of - [] -> host_lookup_error(Host, Lookups); - IPs -> IPs - end; - -gethostaddr(Host, Family) -> - case inet:getaddr(Host, Family) of - {ok, IPAddress} -> [{IPAddress, Family}]; - {error, Reason} -> host_lookup_error(Host, Reason) - end. - -host_lookup_error(Host, Reason) -> - error_logger:error_msg("invalid host ~p - ~p~n", [Host, Reason]), - throw({error, {invalid_host, Host, Reason}}). - -resolve_family({_,_,_,_}, auto) -> inet; -resolve_family({_,_,_,_,_,_,_,_}, auto) -> inet6; -resolve_family(IP, auto) -> throw({error, {strange_family, IP}}); -resolve_family(_, F) -> F. - -check_tcp_listener_address(NamePrefix, Port) when is_integer(Port) -> - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {"auto", Port}) -> - %% Variant to prevent lots of hacking around in bash and batch files - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {Host, Port}) -> - %% auto: determine family IPv4 / IPv6 after converting to IP address - check_tcp_listener_address(NamePrefix, {Host, Port, auto}); - -check_tcp_listener_address(NamePrefix, {Host, Port, Family0}) -> - if is_integer(Port) andalso (Port >= 0) andalso (Port =< 65535) -> ok; - true -> error_logger:error_msg("invalid port ~p - not 0..65535~n", - [Port]), - throw({error, {invalid_port, Port}}) - end, - [{IPAddress, Port, Family, - rabbit_misc:tcp_name(NamePrefix, IPAddress, Port)} || - {IPAddress, Family} <- getaddr(Host, Family0)]. - -check_tcp_listener_address_auto(NamePrefix, Port) -> - lists:append([check_tcp_listener_address(NamePrefix, Listener) || - Listener <- port_to_listeners(Port)]). - -start_tcp_listener(Listener) -> - start_listener(Listener, amqp, "TCP Listener", - {?MODULE, start_client, []}). - -start_ssl_listener(Listener, SslOpts) -> - start_listener(Listener, 'amqp/ssl', "SSL Listener", - {?MODULE, start_ssl_client, [SslOpts]}). - -start_listener(Listener, Protocol, Label, OnConnect) -> - [start_listener0(Spec, Protocol, Label, OnConnect) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -start_listener0({IPAddress, Port, Family, Name}, Protocol, Label, OnConnect) -> - {ok,_} = supervisor:start_child( - rabbit_sup, - {Name, - {tcp_listener_sup, start_link, - [IPAddress, Port, [Family | tcp_opts()], - {?MODULE, tcp_listener_started, [Protocol]}, - {?MODULE, tcp_listener_stopped, [Protocol]}, - OnConnect, Label]}, - transient, infinity, supervisor, [tcp_listener_sup]}). - -stop_tcp_listener(Listener) -> - [stop_tcp_listener0(Spec) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -stop_tcp_listener0({IPAddress, Port, _Family, Name}) -> - Name = rabbit_misc:tcp_name(rabbit_tcp_listener_sup, IPAddress, Port), - ok = supervisor:terminate_child(rabbit_sup, Name), - ok = supervisor:delete_child(rabbit_sup, Name). - -tcp_listener_started(Protocol, IPAddress, Port) -> - %% We need the ip to distinguish e.g. 0.0.0.0 and 127.0.0.1 - %% We need the host so we can distinguish multiple instances of the above - %% in a cluster. - ok = mnesia:dirty_write( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -tcp_listener_stopped(Protocol, IPAddress, Port) -> - ok = mnesia:dirty_delete_object( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -active_listeners() -> - rabbit_misc:dirty_read_all(rabbit_listener). - -node_listeners(Node) -> - mnesia:dirty_read(rabbit_listener, Node). - -on_node_down(Node) -> - ok = mnesia:dirty_delete(rabbit_listener, Node). - -start_client(Sock, SockTransform) -> - {ok, _Child, Reader} = supervisor:start_child(rabbit_tcp_client_sup, []), - ok = rabbit_net:controlling_process(Sock, Reader), - Reader ! {go, Sock, SockTransform}, - Reader. - -start_client(Sock) -> - start_client(Sock, fun (S) -> {ok, S} end). - -start_ssl_client(SslOpts, Sock) -> - start_client( - Sock, - fun (Sock1) -> - case catch ssl:ssl_accept(Sock1, SslOpts, ?SSL_TIMEOUT * 1000) of - {ok, SslSock} -> - rabbit_log:info("upgraded TCP connection ~p to SSL~n", - [self()]), - {ok, #ssl_socket{tcp = Sock1, ssl = SslSock}}; - {error, Reason} -> - {error, {ssl_upgrade_error, Reason}}; - {'EXIT', Reason} -> - {error, {ssl_upgrade_failure, Reason}} - - end - end). - -connections() -> - [rabbit_connection_sup:reader(ConnSup) || - Node <- rabbit_mnesia:running_clustered_nodes(), - {_, ConnSup, supervisor, _} - <- supervisor:which_children({rabbit_tcp_client_sup, Node})]. - -connection_info_keys() -> rabbit_reader:info_keys(). - -connection_info(Pid) -> rabbit_reader:info(Pid). -connection_info(Pid, Items) -> rabbit_reader:info(Pid, Items). - -connection_info_all() -> cmap(fun (Q) -> connection_info(Q) end). -connection_info_all(Items) -> cmap(fun (Q) -> connection_info(Q, Items) end). - -close_connection(Pid, Explanation) -> - case lists:member(Pid, connections()) of - true -> rabbit_reader:shutdown(Pid, Explanation); - false -> throw({error, {not_a_connection_pid, Pid}}) - end. - -%%-------------------------------------------------------------------- - -tcp_host({0,0,0,0}) -> - hostname(); - -tcp_host({0,0,0,0,0,0,0,0}) -> - hostname(); - -tcp_host(IPAddress) -> - case inet:gethostbyaddr(IPAddress) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> rabbit_misc:ntoa(IPAddress) - end. - -hostname() -> - {ok, Hostname} = inet:gethostname(), - case inet:gethostbyname(Hostname) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> Hostname - end. - -cmap(F) -> rabbit_misc:filter_exit_map(F, connections()). - -tcp_opts() -> - {ok, Opts} = application:get_env(rabbit, tcp_listen_options), - Opts. - -%%-------------------------------------------------------------------- - -%% There are three kinds of machine (for our purposes). -%% -%% * Those which treat IPv4 addresses as a special kind of IPv6 address -%% ("Single stack") -%% - Linux by default, Windows Vista and later -%% - We also treat any (hypothetical?) IPv6-only machine the same way -%% * Those which consider IPv6 and IPv4 to be completely separate things -%% ("Dual stack") -%% - OpenBSD, Windows XP / 2003, Linux if so configured -%% * Those which do not support IPv6. -%% - Ancient/weird OSes, Linux if so configured -%% -%% How to reconfigure Linux to test this: -%% Single stack (default): -%% echo 0 > /proc/sys/net/ipv6/bindv6only -%% Dual stack: -%% echo 1 > /proc/sys/net/ipv6/bindv6only -%% IPv4 only: -%% add ipv6.disable=1 to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub then -%% sudo update-grub && sudo reboot -%% -%% This matters in (and only in) the case where the sysadmin (or the -%% app descriptor) has only supplied a port and we wish to bind to -%% "all addresses". This means different things depending on whether -%% we're single or dual stack. On single stack binding to "::" -%% implicitly includes all IPv4 addresses, and subsequently attempting -%% to bind to "0.0.0.0" will fail. On dual stack, binding to "::" will -%% only bind to IPv6 addresses, and we need another listener bound to -%% "0.0.0.0" for IPv4. Finally, on IPv4-only systems we of course only -%% want to bind to "0.0.0.0". -%% -%% Unfortunately it seems there is no way to detect single vs dual stack -%% apart from attempting to bind to the port. -port_to_listeners(Port) -> - IPv4 = {"0.0.0.0", Port, inet}, - IPv6 = {"::", Port, inet6}, - case ipv6_status(?FIRST_TEST_BIND_PORT) of - single_stack -> [IPv6]; - ipv6_only -> [IPv6]; - dual_stack -> [IPv6, IPv4]; - ipv4_only -> [IPv4] - end. - -ipv6_status(TestPort) -> - IPv4 = [inet, {ip, {0,0,0,0}}], - IPv6 = [inet6, {ip, {0,0,0,0,0,0,0,0}}], - case gen_tcp:listen(TestPort, IPv6) of - {ok, LSock6} -> - case gen_tcp:listen(TestPort, IPv4) of - {ok, LSock4} -> - %% Dual stack - gen_tcp:close(LSock6), - gen_tcp:close(LSock4), - dual_stack; - %% Checking the error here would only let us - %% distinguish single stack IPv6 / IPv4 vs IPv6 only, - %% which we figure out below anyway. - {error, _} -> - gen_tcp:close(LSock6), - case gen_tcp:listen(TestPort, IPv4) of - %% Single stack - {ok, LSock4} -> gen_tcp:close(LSock4), - single_stack; - %% IPv6-only machine. Welcome to the future. - {error, eafnosupport} -> ipv6_only; - %% Dual stack machine with something already - %% on IPv4. - {error, _} -> ipv6_status(TestPort + 1) - end - end; - {error, eafnosupport} -> - %% IPv4-only machine. Welcome to the 90s. - ipv4_only; - {error, _} -> - %% Port in use - ipv6_status(TestPort + 1) - end. diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl deleted file mode 100644 index 817abaa2..00000000 --- a/src/rabbit_node_monitor.erl +++ /dev/null @@ -1,101 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_node_monitor). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([notify_cluster/0, rabbit_running_on/1]). - --define(SERVER, ?MODULE). --define(RABBIT_UP_RPC_TIMEOUT, 2000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(rabbit_running_on/1 :: (node()) -> 'ok'). --spec(notify_cluster/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -rabbit_running_on(Node) -> - gen_server:cast(rabbit_node_monitor, {rabbit_running_on, Node}). - -notify_cluster() -> - Node = node(), - Nodes = rabbit_mnesia:running_clustered_nodes() -- [Node], - %% notify other rabbits of this rabbit - case rpc:multicall(Nodes, rabbit_node_monitor, rabbit_running_on, - [Node], ?RABBIT_UP_RPC_TIMEOUT) of - {_, [] } -> ok; - {_, Bad} -> rabbit_log:info("failed to contact nodes ~p~n", [Bad]) - end, - %% register other active rabbits with this rabbit - [ rabbit_node_monitor:rabbit_running_on(N) || N <- Nodes ], - ok. - -%%-------------------------------------------------------------------- - -init([]) -> - ok = net_kernel:monitor_nodes(true), - {ok, no_state}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({rabbit_running_on, Node}, State) -> - rabbit_log:info("node ~p up~n", [Node]), - erlang:monitor(process, {rabbit, Node}), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({nodedown, Node}, State) -> - rabbit_log:info("node ~p down~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info({'DOWN', _MRef, process, {rabbit, Node}, _Reason}, State) -> - rabbit_log:info("node ~p lost 'rabbit'~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -%% TODO: This may turn out to be a performance hog when there are -%% lots of nodes. We really only need to execute this code on -%% *one* node, rather than all of them. -handle_dead_rabbit(Node) -> - ok = rabbit_networking:on_node_down(Node), - ok = rabbit_amqqueue:on_node_down(Node). - diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl deleted file mode 100644 index d9d92788..00000000 --- a/src/rabbit_prelaunch.erl +++ /dev/null @@ -1,276 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_prelaunch). - --export([start/0, stop/0]). - --define(BaseApps, [rabbit]). --define(ERROR_CODE, 1). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - io:format("Activating RabbitMQ plugins ...~n"), - - %% Determine our various directories - [PluginDir, UnpackedPluginDir, NodeStr] = init:get_plain_arguments(), - RootName = UnpackedPluginDir ++ "/rabbit", - - %% Unpack any .ez plugins - unpack_ez_plugins(PluginDir, UnpackedPluginDir), - - %% Build a list of required apps based on the fixed set, and any plugins - PluginApps = find_plugins(PluginDir) ++ find_plugins(UnpackedPluginDir), - RequiredApps = ?BaseApps ++ PluginApps, - - %% Build the entire set of dependencies - this will load the - %% applications along the way - AllApps = case catch sets:to_list(expand_dependencies(RequiredApps)) of - {failed_to_load_app, App, Err} -> - terminate("failed to load application ~s:~n~p", - [App, Err]); - AppList -> - AppList - end, - AppVersions = [determine_version(App) || App <- AllApps], - RabbitVersion = proplists:get_value(rabbit, AppVersions), - - %% Build the overall release descriptor - RDesc = {release, - {"rabbit", RabbitVersion}, - {erts, erlang:system_info(version)}, - AppVersions}, - - %% Write it out to $RABBITMQ_PLUGINS_EXPAND_DIR/rabbit.rel - file:write_file(RootName ++ ".rel", io_lib:format("~p.~n", [RDesc])), - - %% Compile the script - ScriptFile = RootName ++ ".script", - case systools:make_script(RootName, [local, silent, exref]) of - {ok, Module, Warnings} -> - %% This gets lots of spurious no-source warnings when we - %% have .ez files, so we want to supress them to prevent - %% hiding real issues. On Ubuntu, we also get warnings - %% about kernel/stdlib sources being out of date, which we - %% also ignore for the same reason. - WarningStr = Module:format_warning( - [W || W <- Warnings, - case W of - {warning, {source_not_found, _}} -> false; - {warning, {obj_out_of_date, {_,_,WApp,_,_}}} - when WApp == mnesia; - WApp == stdlib; - WApp == kernel; - WApp == sasl; - WApp == crypto; - WApp == os_mon -> false; - _ -> true - end]), - case length(WarningStr) of - 0 -> ok; - _ -> io:format("~s", [WarningStr]) - end, - ok; - {error, Module, Error} -> - terminate("generation of boot script file ~s failed:~n~s", - [ScriptFile, Module:format_error(Error)]) - end, - - case post_process_script(ScriptFile) of - ok -> ok; - {error, Reason} -> - terminate("post processing of boot script file ~s failed:~n~w", - [ScriptFile, Reason]) - end, - case systools:script2boot(RootName) of - ok -> ok; - error -> terminate("failed to compile boot script file ~s", - [ScriptFile]) - end, - io:format("~w plugins activated:~n", [length(PluginApps)]), - [io:format("* ~s-~s~n", [App, proplists:get_value(App, AppVersions)]) - || App <- PluginApps], - io:nl(), - - ok = duplicate_node_check(NodeStr), - - terminate(0), - ok. - -stop() -> - ok. - -determine_version(App) -> - application:load(App), - {ok, Vsn} = application:get_key(App, vsn), - {App, Vsn}. - -delete_recursively(Fn) -> - case filelib:is_dir(Fn) and not(is_symlink(Fn)) of - true -> - case file:list_dir(Fn) of - {ok, Files} -> - case lists:foldl(fun ( Fn1, ok) -> delete_recursively( - Fn ++ "/" ++ Fn1); - (_Fn1, Err) -> Err - end, ok, Files) of - ok -> case file:del_dir(Fn) of - ok -> ok; - {error, E} -> {error, - {cannot_delete, Fn, E}} - end; - Err -> Err - end; - {error, E} -> - {error, {cannot_list_files, Fn, E}} - end; - false -> - case filelib:is_file(Fn) of - true -> case file:delete(Fn) of - ok -> ok; - {error, E} -> {error, {cannot_delete, Fn, E}} - end; - false -> ok - end - end. - -is_symlink(Name) -> - case file:read_link(Name) of - {ok, _} -> true; - _ -> false - end. - -unpack_ez_plugins(SrcDir, DestDir) -> - %% Eliminate the contents of the destination directory - case delete_recursively(DestDir) of - ok -> ok; - {error, E} -> terminate("Could not delete dir ~s (~p)", [DestDir, E]) - end, - case filelib:ensure_dir(DestDir ++ "/") of - ok -> ok; - {error, E2} -> terminate("Could not create dir ~s (~p)", [DestDir, E2]) - end, - [unpack_ez_plugin(PluginName, DestDir) || - PluginName <- filelib:wildcard(SrcDir ++ "/*.ez")]. - -unpack_ez_plugin(PluginFn, PluginDestDir) -> - zip:unzip(PluginFn, [{cwd, PluginDestDir}]), - ok. - -find_plugins(PluginDir) -> - [prepare_dir_plugin(PluginName) || - PluginName <- filelib:wildcard(PluginDir ++ "/*/ebin/*.app")]. - -prepare_dir_plugin(PluginAppDescFn) -> - %% Add the plugin ebin directory to the load path - PluginEBinDirN = filename:dirname(PluginAppDescFn), - code:add_path(PluginEBinDirN), - - %% We want the second-last token - NameTokens = string:tokens(PluginAppDescFn,"/."), - PluginNameString = lists:nth(length(NameTokens) - 1, NameTokens), - list_to_atom(PluginNameString). - -expand_dependencies(Pending) -> - expand_dependencies(sets:new(), Pending). -expand_dependencies(Current, []) -> - Current; -expand_dependencies(Current, [Next|Rest]) -> - case sets:is_element(Next, Current) of - true -> - expand_dependencies(Current, Rest); - false -> - case application:load(Next) of - ok -> - ok; - {error, {already_loaded, _}} -> - ok; - {error, Reason} -> - throw({failed_to_load_app, Next, Reason}) - end, - {ok, Required} = application:get_key(Next, applications), - Unique = [A || A <- Required, not(sets:is_element(A, Current))], - expand_dependencies(sets:add_element(Next, Current), Rest ++ Unique) - end. - -post_process_script(ScriptFile) -> - case file:consult(ScriptFile) of - {ok, [{script, Name, Entries}]} -> - NewEntries = lists:flatmap(fun process_entry/1, Entries), - case file:open(ScriptFile, [write]) of - {ok, Fd} -> - io:format(Fd, "%% script generated at ~w ~w~n~p.~n", - [date(), time(), {script, Name, NewEntries}]), - file:close(Fd), - ok; - {error, OReason} -> - {error, {failed_to_open_script_file_for_writing, OReason}} - end; - {error, Reason} -> - {error, {failed_to_load_script, Reason}} - end. - -process_entry(Entry = {apply,{application,start_boot,[rabbit,permanent]}}) -> - [{apply,{rabbit,prepare,[]}}, Entry]; -process_entry(Entry) -> - [Entry]. - -%% Check whether a node with the same name is already running -duplicate_node_check([]) -> - %% Ignore running node while installing windows service - ok; -duplicate_node_check(NodeStr) -> - Node = rabbit_misc:makenode(NodeStr), - {NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - case net_adm:names(NodeHost) of - {ok, NamePorts} -> - case proplists:is_defined(NodeName, NamePorts) of - true -> io:format("node with name ~p " - "already running on ~p~n", - [NodeName, NodeHost]), - [io:format(Fmt ++ "~n", Args) || - {Fmt, Args} <- rabbit_control:diagnostics(Node)], - terminate(?ERROR_CODE); - false -> ok - end; - {error, EpmdReason} -> terminate("unexpected epmd error: ~p~n", - [EpmdReason]) - end. - -terminate(Fmt, Args) -> - io:format("ERROR: " ++ Fmt ++ "~n", Args), - terminate(?ERROR_CODE). - -terminate(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status), - receive - after infinity -> ok - end - end. diff --git a/src/rabbit_queue_collector.erl b/src/rabbit_queue_collector.erl deleted file mode 100644 index 9b45e798..00000000 --- a/src/rabbit_queue_collector.erl +++ /dev/null @@ -1,92 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_collector). - --behaviour(gen_server). - --export([start_link/0, register/2, delete_all/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {queues, delete_from}). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/2 :: (pid(), rabbit_types:amqqueue()) -> 'ok'). --spec(delete_all/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link(?MODULE, [], []). - -register(CollectorPid, Q) -> - gen_server:call(CollectorPid, {register, Q}, infinity). - -delete_all(CollectorPid) -> - gen_server:call(CollectorPid, delete_all, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state{queues = dict:new(), delete_from = undefined}}. - -%%-------------------------------------------------------------------------- - -handle_call({register, Q}, _From, - State = #state{queues = Queues, delete_from = Deleting}) -> - MonitorRef = erlang:monitor(process, Q#amqqueue.pid), - case Deleting of - undefined -> ok; - _ -> rabbit_amqqueue:delete_immediately(Q) - end, - {reply, ok, State#state{queues = dict:store(MonitorRef, Q, Queues)}}; - -handle_call(delete_all, From, State = #state{queues = Queues, - delete_from = undefined}) -> - case dict:size(Queues) of - 0 -> {reply, ok, State#state{delete_from = From}}; - _ -> [rabbit_amqqueue:delete_immediately(Q) - || {_MRef, Q} <- dict:to_list(Queues)], - {noreply, State#state{delete_from = From}} - end. - -handle_cast(Msg, State) -> - {stop, {unhandled_cast, Msg}, State}. - -handle_info({'DOWN', MonitorRef, process, _DownPid, _Reason}, - State = #state{queues = Queues, delete_from = Deleting}) -> - Queues1 = dict:erase(MonitorRef, Queues), - case Deleting =/= undefined andalso dict:size(Queues1) =:= 0 of - true -> gen_server:reply(Deleting, ok); - false -> ok - end, - {noreply, State#state{queues = Queues1}}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl deleted file mode 100644 index 76b1136f..00000000 --- a/src/rabbit_queue_index.erl +++ /dev/null @@ -1,1071 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_index). - --export([init/2, shutdown_terms/1, recover/5, - terminate/2, delete_and_terminate/1, - publish/5, deliver/2, ack/2, sync/1, sync/2, flush/1, read/3, - next_segment_boundary/1, bounds/1, recover/1]). - --export([add_queue_ttl/0]). - --define(CLEAN_FILENAME, "clean.dot"). - -%%---------------------------------------------------------------------------- - -%% The queue index is responsible for recording the order of messages -%% within a queue on disk. -%% -%% Because of the fact that the queue can decide at any point to send -%% a queue entry to disk, you can not rely on publishes appearing in -%% order. The only thing you can rely on is a message being published, -%% then delivered, then ack'd. -%% -%% In order to be able to clean up ack'd messages, we write to segment -%% files. These files have a fixed maximum size: ?SEGMENT_ENTRY_COUNT -%% publishes, delivers and acknowledgements. They are numbered, and so -%% it is known that the 0th segment contains messages 0 -> -%% ?SEGMENT_ENTRY_COUNT - 1, the 1st segment contains messages -%% ?SEGMENT_ENTRY_COUNT -> 2*?SEGMENT_ENTRY_COUNT - 1 and so on. As -%% such, in the segment files, we only refer to message sequence ids -%% by the LSBs as SeqId rem ?SEGMENT_ENTRY_COUNT. This gives them a -%% fixed size. -%% -%% However, transient messages which are not sent to disk at any point -%% will cause gaps to appear in segment files. Therefore, we delete a -%% segment file whenever the number of publishes == number of acks -%% (note that although it is not fully enforced, it is assumed that a -%% message will never be ackd before it is delivered, thus this test -%% also implies == number of delivers). In practise, this does not -%% cause disk churn in the pathological case because of the journal -%% and caching (see below). -%% -%% Because of the fact that publishes, delivers and acks can occur all -%% over, we wish to avoid lots of seeking. Therefore we have a fixed -%% sized journal to which all actions are appended. When the number of -%% entries in this journal reaches max_journal_entries, the journal -%% entries are scattered out to their relevant files, and the journal -%% is truncated to zero size. Note that entries in the journal must -%% carry the full sequence id, thus the format of entries in the -%% journal is different to that in the segments. -%% -%% The journal is also kept fully in memory, pre-segmented: the state -%% contains a mapping from segment numbers to state-per-segment (this -%% state is held for all segments which have been "seen": thus a -%% segment which has been read but has no pending entries in the -%% journal is still held in this mapping. Also note that a dict is -%% used for this mapping, not an array because with an array, you will -%% always have entries from 0). Actions are stored directly in this -%% state. Thus at the point of flushing the journal, firstly no -%% reading from disk is necessary, but secondly if the known number of -%% acks and publishes in a segment are equal, given the known state of -%% the segment file combined with the journal, no writing needs to be -%% done to the segment file either (in fact it is deleted if it exists -%% at all). This is safe given that the set of acks is a subset of the -%% set of publishes. When it's necessary to sync messages because of -%% transactions, it's only necessary to fsync on the journal: when -%% entries are distributed from the journal to segment files, those -%% segments appended to are fsync'd prior to the journal being -%% truncated. -%% -%% This module is also responsible for scanning the queue index files -%% and seeding the message store on start up. -%% -%% Note that in general, the representation of a message's state as -%% the tuple: {('no_pub'|{Guid, MsgProps, IsPersistent}), -%% ('del'|'no_del'), ('ack'|'no_ack')} is richer than strictly -%% necessary for most operations. However, for startup, and to ensure -%% the safe and correct combination of journal entries with entries -%% read from the segment on disk, this richer representation vastly -%% simplifies and clarifies the code. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. -%% -%%---------------------------------------------------------------------------- - -%% ---- Journal details ---- - --define(JOURNAL_FILENAME, "journal.jif"). - --define(PUB_PERSIST_JPREFIX, 2#00). --define(PUB_TRANS_JPREFIX, 2#01). --define(DEL_JPREFIX, 2#10). --define(ACK_JPREFIX, 2#11). --define(JPREFIX_BITS, 2). --define(SEQ_BYTES, 8). --define(SEQ_BITS, ((?SEQ_BYTES * 8) - ?JPREFIX_BITS)). - -%% ---- Segment details ---- - --define(SEGMENT_EXTENSION, ".idx"). - -%% TODO: The segment size would be configurable, but deriving all the -%% other values is quite hairy and quite possibly noticably less -%% efficient, depending on how clever the compiler is when it comes to -%% binary generation/matching with constant vs variable lengths. - --define(REL_SEQ_BITS, 14). --define(SEGMENT_ENTRY_COUNT, 16384). %% trunc(math:pow(2,?REL_SEQ_BITS))). - -%% seq only is binary 00 followed by 14 bits of rel seq id -%% (range: 0 - 16383) --define(REL_SEQ_ONLY_PREFIX, 00). --define(REL_SEQ_ONLY_PREFIX_BITS, 2). --define(REL_SEQ_ONLY_ENTRY_LENGTH_BYTES, 2). - -%% publish record is binary 1 followed by a bit for is_persistent, -%% then 14 bits of rel seq id, 64 bits for message expiry and 128 bits -%% of md5sum msg id --define(PUBLISH_PREFIX, 1). --define(PUBLISH_PREFIX_BITS, 1). - --define(EXPIRY_BYTES, 8). --define(EXPIRY_BITS, (?EXPIRY_BYTES * 8)). --define(NO_EXPIRY, 0). - --define(GUID_BYTES, 16). %% md5sum is 128 bit or 16 bytes --define(GUID_BITS, (?GUID_BYTES * 8)). -%% 16 bytes for md5sum + 8 for expiry + 2 for seq, bits and prefix --define(PUBLISH_RECORD_LENGTH_BYTES, ?GUID_BYTES + ?EXPIRY_BYTES + 2). - -%% 1 publish, 1 deliver, 1 ack per msg --define(SEGMENT_TOTAL_SIZE, ?SEGMENT_ENTRY_COUNT * - (?PUBLISH_RECORD_LENGTH_BYTES + - (2 * ?REL_SEQ_ONLY_ENTRY_LENGTH_BYTES))). - -%% ---- misc ---- - --define(PUB, {_, _, _}). %% {Guid, MsgProps, IsPersistent} - --define(READ_MODE, [binary, raw, read]). --define(READ_AHEAD_MODE, [{read_ahead, ?SEGMENT_TOTAL_SIZE} | ?READ_MODE]). --define(WRITE_MODE, [write | ?READ_MODE]). - -%%---------------------------------------------------------------------------- - --record(qistate, { dir, segments, journal_handle, dirty_count, - max_journal_entries, on_sync, unsynced_guids }). - --record(segment, { num, path, journal_entries, unacked }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({add_queue_ttl, []}). - --ifdef(use_specs). - --type(hdl() :: ('undefined' | any())). --type(segment() :: ('undefined' | - #segment { num :: non_neg_integer(), - path :: file:filename(), - journal_entries :: array(), - unacked :: non_neg_integer() - })). --type(seq_id() :: integer()). --type(seg_dict() :: {dict(), [segment()]}). --type(on_sync_fun() :: fun ((gb_set()) -> ok)). --type(qistate() :: #qistate { dir :: file:filename(), - segments :: 'undefined' | seg_dict(), - journal_handle :: hdl(), - dirty_count :: integer(), - max_journal_entries :: non_neg_integer(), - on_sync :: on_sync_fun(), - unsynced_guids :: [rabbit_guid:guid()] - }). --type(startup_fun_state() :: - {fun ((A) -> 'finished' | {rabbit_guid:guid(), non_neg_integer(), A}), - A}). --type(shutdown_terms() :: [any()]). - --spec(init/2 :: (rabbit_amqqueue:name(), on_sync_fun()) -> qistate()). --spec(shutdown_terms/1 :: (rabbit_amqqueue:name()) -> shutdown_terms()). --spec(recover/5 :: (rabbit_amqqueue:name(), shutdown_terms(), boolean(), - fun ((rabbit_guid:guid()) -> boolean()), on_sync_fun()) -> - {'undefined' | non_neg_integer(), qistate()}). --spec(terminate/2 :: ([any()], qistate()) -> qistate()). --spec(delete_and_terminate/1 :: (qistate()) -> qistate()). --spec(publish/5 :: (rabbit_guid:guid(), seq_id(), - rabbit_types:message_properties(), boolean(), qistate()) - -> qistate()). --spec(deliver/2 :: ([seq_id()], qistate()) -> qistate()). --spec(ack/2 :: ([seq_id()], qistate()) -> qistate()). --spec(sync/2 :: ([seq_id()], qistate()) -> qistate()). --spec(flush/1 :: (qistate()) -> qistate()). --spec(read/3 :: (seq_id(), seq_id(), qistate()) -> - {[{rabbit_guid:guid(), seq_id(), - rabbit_types:message_properties(), - boolean(), boolean()}], qistate()}). --spec(next_segment_boundary/1 :: (seq_id()) -> seq_id()). --spec(bounds/1 :: (qistate()) -> - {non_neg_integer(), non_neg_integer(), qistate()}). --spec(recover/1 :: ([rabbit_amqqueue:name()]) -> - {[[any()]], startup_fun_state()}). - --spec(add_queue_ttl/0 :: () -> 'ok'). - --endif. - - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -init(Name, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - false = filelib:is_file(Dir), %% is_file == is file or dir - State #qistate { on_sync = OnSyncFun }. - -shutdown_terms(Name) -> - #qistate { dir = Dir } = blank_state(Name), - case read_shutdown_terms(Dir) of - {error, _} -> []; - {ok, Terms1} -> Terms1 - end. - -recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - State1 = State #qistate { on_sync = OnSyncFun }, - CleanShutdown = detect_clean_shutdown(Dir), - case CleanShutdown andalso MsgStoreRecovered of - true -> RecoveredCounts = proplists:get_value(segments, Terms, []), - init_clean(RecoveredCounts, State1); - false -> init_dirty(CleanShutdown, ContainsCheckFun, State1) - end. - -terminate(Terms, State) -> - {SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - store_clean_shutdown([{segments, SegmentCounts} | Terms], Dir), - State1. - -delete_and_terminate(State) -> - {_SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - ok = rabbit_misc:recursive_delete([Dir]), - State1. - -publish(Guid, SeqId, MsgProps, IsPersistent, - State = #qistate { unsynced_guids = UnsyncedGuids }) - when is_binary(Guid) -> - ?GUID_BYTES = size(Guid), - {JournalHdl, State1} = get_journal_handle( - State #qistate { - unsynced_guids = [Guid | UnsyncedGuids] }), - ok = file_handle_cache:append( - JournalHdl, [<<(case IsPersistent of - true -> ?PUB_PERSIST_JPREFIX; - false -> ?PUB_TRANS_JPREFIX - end):?JPREFIX_BITS, - SeqId:?SEQ_BITS>>, - create_pub_record_body(Guid, MsgProps)]), - maybe_flush_journal( - add_to_journal(SeqId, {Guid, MsgProps, IsPersistent}, State1)). - -deliver(SeqIds, State) -> - deliver_or_ack(del, SeqIds, State). - -ack(SeqIds, State) -> - deliver_or_ack(ack, SeqIds, State). - -%% This is only called when there are outstanding confirms and the -%% queue is idle. -sync(State = #qistate { unsynced_guids = Guids }) -> - sync_if([] =/= Guids, State). - -sync(SeqIds, State) -> - %% The SeqIds here contains the SeqId of every publish and ack in - %% the transaction. Ideally we should go through these seqids and - %% only sync the journal if the pubs or acks appear in the - %% journal. However, this would be complex to do, and given that - %% the variable queue publishes and acks to the qi, and then - %% syncs, all in one operation, there is no possibility of the - %% seqids not being in the journal, provided the transaction isn't - %% emptied (handled by sync_if anyway). - sync_if([] =/= SeqIds, State). - -flush(State = #qistate { dirty_count = 0 }) -> State; -flush(State) -> flush_journal(State). - -read(StartEnd, StartEnd, State) -> - {[], State}; -read(Start, End, State = #qistate { segments = Segments, - dir = Dir }) when Start =< End -> - %% Start is inclusive, End is exclusive. - LowerB = {StartSeg, _StartRelSeq} = seq_id_to_seg_and_rel_seq_id(Start), - UpperB = {EndSeg, _EndRelSeq} = seq_id_to_seg_and_rel_seq_id(End - 1), - {Messages, Segments1} = - lists:foldr(fun (Seg, Acc) -> - read_bounded_segment(Seg, LowerB, UpperB, Acc, Dir) - end, {[], Segments}, lists:seq(StartSeg, EndSeg)), - {Messages, State #qistate { segments = Segments1 }}. - -next_segment_boundary(SeqId) -> - {Seg, _RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - reconstruct_seq_id(Seg + 1, 0). - -bounds(State = #qistate { segments = Segments }) -> - %% This is not particularly efficient, but only gets invoked on - %% queue initialisation. - SegNums = lists:sort(segment_nums(Segments)), - %% Don't bother trying to figure out the lowest seq_id, merely the - %% seq_id of the start of the lowest segment. That seq_id may not - %% actually exist, but that's fine. The important thing is that - %% the segment exists and the seq_id reported is on a segment - %% boundary. - %% - %% We also don't really care about the max seq_id. Just start the - %% next segment: it makes life much easier. - %% - %% SegNums is sorted, ascending. - {LowSeqId, NextSeqId} = - case SegNums of - [] -> {0, 0}; - [MinSeg|_] -> {reconstruct_seq_id(MinSeg, 0), - reconstruct_seq_id(1 + lists:last(SegNums), 0)} - end, - {LowSeqId, NextSeqId, State}. - -recover(DurableQueues) -> - DurableDict = dict:from_list([ {queue_name_to_dir_name(Queue), Queue} || - Queue <- DurableQueues ]), - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), - {DurableQueueNames, DurableTerms} = - lists:foldl( - fun (QueueDirName, {DurableAcc, TermsAcc}) -> - QueueDirPath = filename:join(QueuesDir, QueueDirName), - case sets:is_element(QueueDirName, DurableDirectories) of - true -> - TermsAcc1 = - case read_shutdown_terms(QueueDirPath) of - {error, _} -> TermsAcc; - {ok, Terms} -> [Terms | TermsAcc] - end, - {[dict:fetch(QueueDirName, DurableDict) | DurableAcc], - TermsAcc1}; - false -> - ok = rabbit_misc:recursive_delete([QueueDirPath]), - {DurableAcc, TermsAcc} - end - end, {[], []}, QueueDirNames), - {DurableTerms, {fun queue_index_walker/1, {start, DurableQueueNames}}}. - -all_queue_directory_names(Dir) -> - case file:list_dir(Dir) of - {ok, Entries} -> [ Entry || Entry <- Entries, - filelib:is_dir( - filename:join(Dir, Entry)) ]; - {error, enoent} -> [] - end. - -%%---------------------------------------------------------------------------- -%% startup and shutdown -%%---------------------------------------------------------------------------- - -blank_state(QueueName) -> - Dir = filename:join(queues_dir(), queue_name_to_dir_name(QueueName)), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - #qistate { dir = Dir, - segments = segments_new(), - journal_handle = undefined, - dirty_count = 0, - max_journal_entries = MaxJournal, - on_sync = fun (_) -> ok end, - unsynced_guids = [] }. - -clean_file_name(Dir) -> filename:join(Dir, ?CLEAN_FILENAME). - -detect_clean_shutdown(Dir) -> - case file:delete(clean_file_name(Dir)) of - ok -> true; - {error, enoent} -> false - end. - -read_shutdown_terms(Dir) -> - rabbit_misc:read_term_file(clean_file_name(Dir)). - -store_clean_shutdown(Terms, Dir) -> - CleanFileName = clean_file_name(Dir), - ok = filelib:ensure_dir(CleanFileName), - rabbit_misc:write_term_file(CleanFileName, Terms). - -init_clean(RecoveredCounts, State) -> - %% Load the journal. Since this is a clean recovery this (almost) - %% gets us back to where we were on shutdown. - State1 = #qistate { dir = Dir, segments = Segments } = load_journal(State), - %% The journal loading only creates records for segments touched - %% by the journal, and the counts are based on the journal entries - %% only. We need *complete* counts for *all* segments. By an - %% amazing coincidence we stored that information on shutdown. - Segments1 = - lists:foldl( - fun ({Seg, UnackedCount}, SegmentsN) -> - Segment = segment_find_or_new(Seg, Dir, SegmentsN), - segment_store(Segment #segment { unacked = UnackedCount }, - SegmentsN) - end, Segments, RecoveredCounts), - %% the counts above include transient messages, which would be the - %% wrong thing to return - {undefined, State1 # qistate { segments = Segments1 }}. - -init_dirty(CleanShutdown, ContainsCheckFun, State) -> - %% Recover the journal completely. This will also load segments - %% which have entries in the journal and remove duplicates. The - %% counts will correctly reflect the combination of the segment - %% and the journal. - State1 = #qistate { dir = Dir, segments = Segments } = - recover_journal(State), - {Segments1, Count} = - %% Load each segment in turn and filter out messages that are - %% not in the msg_store, by adding acks to the journal. These - %% acks only go to the RAM journal as it doesn't matter if we - %% lose them. Also mark delivered if not clean shutdown. Also - %% find the number of unacked messages. - lists:foldl( - fun (Seg, {Segments2, CountAcc}) -> - Segment = #segment { unacked = UnackedCount } = - recover_segment(ContainsCheckFun, CleanShutdown, - segment_find_or_new(Seg, Dir, Segments2)), - {segment_store(Segment, Segments2), CountAcc + UnackedCount} - end, {Segments, 0}, all_segment_nums(State1)), - %% Unconditionally flush since the dirty_count doesn't get updated - %% by the above foldl. - State2 = flush_journal(State1 #qistate { segments = Segments1 }), - {Count, State2}. - -terminate(State = #qistate { journal_handle = JournalHdl, - segments = Segments }) -> - ok = case JournalHdl of - undefined -> ok; - _ -> file_handle_cache:close(JournalHdl) - end, - SegmentCounts = - segment_fold( - fun (#segment { num = Seg, unacked = UnackedCount }, Acc) -> - [{Seg, UnackedCount} | Acc] - end, [], Segments), - {SegmentCounts, State #qistate { journal_handle = undefined, - segments = undefined }}. - -recover_segment(ContainsCheckFun, CleanShutdown, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, UnackedCount} = load_segment(false, Segment), - {SegEntries1, UnackedCountDelta} = - segment_plus_journal(SegEntries, JEntries), - array:sparse_foldl( - fun (RelSeq, {{Guid, _MsgProps, _IsPersistent}, Del, no_ack}, Segment1) -> - recover_message(ContainsCheckFun(Guid), CleanShutdown, - Del, RelSeq, Segment1) - end, - Segment #segment { unacked = UnackedCount + UnackedCountDelta }, - SegEntries1). - -recover_message( true, true, _Del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, del, Segment); -recover_message(false, _, del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, Segment); -recover_message(false, _, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, add_to_journal(RelSeq, del, Segment)). - -queue_name_to_dir_name(Name = #resource { kind = queue }) -> - <> = erlang:md5(term_to_binary(Name)), - lists:flatten(io_lib:format("~.36B", [Num])). - -queues_dir() -> - filename:join(rabbit_mnesia:dir(), "queues"). - -%%---------------------------------------------------------------------------- -%% msg store startup delta function -%%---------------------------------------------------------------------------- - -queue_index_walker({start, DurableQueues}) when is_list(DurableQueues) -> - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> queue_index_walker_reader(QueueName, Gatherer) - end) - end || QueueName <- DurableQueues], - queue_index_walker({next, Gatherer}); - -queue_index_walker({next, Gatherer}) when is_pid(Gatherer) -> - case gatherer:out(Gatherer) of - empty -> - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer), - finished; - {value, {Guid, Count}} -> - {Guid, Count, {next, Gatherer}} - end. - -queue_index_walker_reader(QueueName, Gatherer) -> - State = #qistate { segments = Segments, dir = Dir } = - recover_journal(blank_state(QueueName)), - [ok = segment_entries_foldr( - fun (_RelSeq, {{Guid, _MsgProps, true}, _IsDelivered, no_ack}, - ok) -> - gatherer:in(Gatherer, {Guid, 1}); - (_RelSeq, _Value, Acc) -> - Acc - end, ok, segment_find_or_new(Seg, Dir, Segments)) || - Seg <- all_segment_nums(State)], - {_SegmentCounts, _State} = terminate(State), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% expiry/binary manipulation -%%---------------------------------------------------------------------------- - -create_pub_record_body(Guid, #message_properties{expiry = Expiry}) -> - [Guid, expiry_to_binary(Expiry)]. - -expiry_to_binary(undefined) -> <>; -expiry_to_binary(Expiry) -> <>. - -read_pub_record_body(Hdl) -> - case file_handle_cache:read(Hdl, ?GUID_BYTES + ?EXPIRY_BYTES) of - {ok, Bin} -> - %% work around for binary data fragmentation. See - %% rabbit_msg_file:read_next/2 - <> = Bin, - <> = <>, - Exp = case Expiry of - ?NO_EXPIRY -> undefined; - X -> X - end, - {Guid, #message_properties{expiry = Exp}}; - Error -> - Error - end. - -%%---------------------------------------------------------------------------- -%% journal manipulation -%%---------------------------------------------------------------------------- - -add_to_journal(SeqId, Action, State = #qistate { dirty_count = DCount, - segments = Segments, - dir = Dir }) -> - {Seg, RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - Segment = segment_find_or_new(Seg, Dir, Segments), - Segment1 = add_to_journal(RelSeq, Action, Segment), - State #qistate { dirty_count = DCount + 1, - segments = segment_store(Segment1, Segments) }; - -add_to_journal(RelSeq, Action, - Segment = #segment { journal_entries = JEntries, - unacked = UnackedCount }) -> - Segment1 = Segment #segment { - journal_entries = add_to_journal(RelSeq, Action, JEntries) }, - case Action of - del -> Segment1; - ack -> Segment1 #segment { unacked = UnackedCount - 1 }; - ?PUB -> Segment1 #segment { unacked = UnackedCount + 1 } - end; - -add_to_journal(RelSeq, Action, JEntries) -> - Val = case array:get(RelSeq, JEntries) of - undefined -> - case Action of - ?PUB -> {Action, no_del, no_ack}; - del -> {no_pub, del, no_ack}; - ack -> {no_pub, no_del, ack} - end; - ({Pub, no_del, no_ack}) when Action == del -> - {Pub, del, no_ack}; - ({Pub, Del, no_ack}) when Action == ack -> - {Pub, Del, ack} - end, - array:set(RelSeq, Val, JEntries). - -maybe_flush_journal(State = #qistate { dirty_count = DCount, - max_journal_entries = MaxJournal }) - when DCount > MaxJournal -> - flush_journal(State); -maybe_flush_journal(State) -> - State. - -flush_journal(State = #qistate { segments = Segments }) -> - Segments1 = - segment_fold( - fun (#segment { unacked = 0, path = Path }, SegmentsN) -> - case filelib:is_file(Path) of - true -> ok = file:delete(Path); - false -> ok - end, - SegmentsN; - (#segment {} = Segment, SegmentsN) -> - segment_store(append_journal_to_segment(Segment), SegmentsN) - end, segments_new(), Segments), - {JournalHdl, State1} = - get_journal_handle(State #qistate { segments = Segments1 }), - ok = file_handle_cache:clear(JournalHdl), - notify_sync(State1 #qistate { dirty_count = 0 }). - -append_journal_to_segment(#segment { journal_entries = JEntries, - path = Path } = Segment) -> - case array:sparse_size(JEntries) of - 0 -> Segment; - _ -> {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - array:sparse_foldl(fun write_entry_to_segment/3, Hdl, JEntries), - ok = file_handle_cache:close(Hdl), - Segment #segment { journal_entries = array_new() } - end. - -get_journal_handle(State = #qistate { journal_handle = undefined, - dir = Dir }) -> - Path = filename:join(Dir, ?JOURNAL_FILENAME), - ok = filelib:ensure_dir(Path), - {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - {Hdl, State #qistate { journal_handle = Hdl }}; -get_journal_handle(State = #qistate { journal_handle = Hdl }) -> - {Hdl, State}. - -%% Loading Journal. This isn't idempotent and will mess up the counts -%% if you call it more than once on the same state. Assumes the counts -%% are 0 to start with. -load_journal(State) -> - {JournalHdl, State1} = get_journal_handle(State), - {ok, 0} = file_handle_cache:position(JournalHdl, 0), - load_journal_entries(State1). - -%% ditto -recover_journal(State) -> - State1 = #qistate { segments = Segments } = load_journal(State), - Segments1 = - segment_map( - fun (Segment = #segment { journal_entries = JEntries, - unacked = UnackedCountInJournal }) -> - %% We want to keep ack'd entries in so that we can - %% remove them if duplicates are in the journal. The - %% counts here are purely from the segment itself. - {SegEntries, UnackedCountInSeg} = load_segment(true, Segment), - {JEntries1, UnackedCountDuplicates} = - journal_minus_segment(JEntries, SegEntries), - Segment #segment { journal_entries = JEntries1, - unacked = (UnackedCountInJournal + - UnackedCountInSeg - - UnackedCountDuplicates) } - end, Segments), - State1 #qistate { segments = Segments1 }. - -load_journal_entries(State = #qistate { journal_handle = Hdl }) -> - case file_handle_cache:read(Hdl, ?SEQ_BYTES) of - {ok, <>} -> - case Prefix of - ?DEL_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, del, State)); - ?ACK_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, ack, State)); - _ -> - case read_pub_record_body(Hdl) of - {Guid, MsgProps} -> - Publish = {Guid, MsgProps, - case Prefix of - ?PUB_PERSIST_JPREFIX -> true; - ?PUB_TRANS_JPREFIX -> false - end}, - load_journal_entries( - add_to_journal(SeqId, Publish, State)); - _ErrOrEoF -> %% err, we've lost at least a publish - State - end - end; - _ErrOrEoF -> State - end. - -deliver_or_ack(_Kind, [], State) -> - State; -deliver_or_ack(Kind, SeqIds, State) -> - JPrefix = case Kind of ack -> ?ACK_JPREFIX; del -> ?DEL_JPREFIX end, - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, - [<> || SeqId <- SeqIds]), - maybe_flush_journal(lists:foldl(fun (SeqId, StateN) -> - add_to_journal(SeqId, Kind, StateN) - end, State1, SeqIds)). - -sync_if(false, State) -> - State; -sync_if(_Bool, State = #qistate { journal_handle = undefined }) -> - State; -sync_if(true, State = #qistate { journal_handle = JournalHdl }) -> - ok = file_handle_cache:sync(JournalHdl), - notify_sync(State). - -notify_sync(State = #qistate { unsynced_guids = UG, on_sync = OnSyncFun }) -> - OnSyncFun(gb_sets:from_list(UG)), - State #qistate { unsynced_guids = [] }. - -%%---------------------------------------------------------------------------- -%% segment manipulation -%%---------------------------------------------------------------------------- - -seq_id_to_seg_and_rel_seq_id(SeqId) -> - { SeqId div ?SEGMENT_ENTRY_COUNT, SeqId rem ?SEGMENT_ENTRY_COUNT }. - -reconstruct_seq_id(Seg, RelSeq) -> - (Seg * ?SEGMENT_ENTRY_COUNT) + RelSeq. - -all_segment_nums(#qistate { dir = Dir, segments = Segments }) -> - lists:sort( - sets:to_list( - lists:foldl( - fun (SegName, Set) -> - sets:add_element( - list_to_integer( - lists:takewhile(fun (C) -> $0 =< C andalso C =< $9 end, - SegName)), Set) - end, sets:from_list(segment_nums(Segments)), - filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)))). - -segment_find_or_new(Seg, Dir, Segments) -> - case segment_find(Seg, Segments) of - {ok, Segment} -> Segment; - error -> SegName = integer_to_list(Seg) ++ ?SEGMENT_EXTENSION, - Path = filename:join(Dir, SegName), - #segment { num = Seg, - path = Path, - journal_entries = array_new(), - unacked = 0 } - end. - -segment_find(Seg, {_Segments, [Segment = #segment { num = Seg } |_]}) -> - {ok, Segment}; %% 1 or (2, matches head) -segment_find(Seg, {_Segments, [_, Segment = #segment { num = Seg }]}) -> - {ok, Segment}; %% 2, matches tail -segment_find(Seg, {Segments, _}) -> %% no match - dict:find(Seg, Segments). - -segment_store(Segment = #segment { num = Seg }, %% 1 or (2, matches head) - {Segments, [#segment { num = Seg } | Tail]}) -> - {Segments, [Segment | Tail]}; -segment_store(Segment = #segment { num = Seg }, %% 2, matches tail - {Segments, [SegmentA, #segment { num = Seg }]}) -> - {Segments, [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, {Segments, []}) -> - {dict:erase(Seg, Segments), [Segment]}; -segment_store(Segment = #segment { num = Seg }, {Segments, [SegmentA]}) -> - {dict:erase(Seg, Segments), [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, - {Segments, [SegmentA, SegmentB]}) -> - {dict:store(SegmentB#segment.num, SegmentB, dict:erase(Seg, Segments)), - [Segment, SegmentA]}. - -segment_fold(Fun, Acc, {Segments, CachedSegments}) -> - dict:fold(fun (_Seg, Segment, Acc1) -> Fun(Segment, Acc1) end, - lists:foldl(Fun, Acc, CachedSegments), Segments). - -segment_map(Fun, {Segments, CachedSegments}) -> - {dict:map(fun (_Seg, Segment) -> Fun(Segment) end, Segments), - lists:map(Fun, CachedSegments)}. - -segment_nums({Segments, CachedSegments}) -> - lists:map(fun (#segment { num = Num }) -> Num end, CachedSegments) ++ - dict:fetch_keys(Segments). - -segments_new() -> - {dict:new(), []}. - -write_entry_to_segment(_RelSeq, {?PUB, del, ack}, Hdl) -> - Hdl; -write_entry_to_segment(RelSeq, {Pub, Del, Ack}, Hdl) -> - ok = case Pub of - no_pub -> - ok; - {Guid, MsgProps, IsPersistent} -> - file_handle_cache:append( - Hdl, [<>, - create_pub_record_body(Guid, MsgProps)]) - end, - ok = case {Del, Ack} of - {no_del, no_ack} -> - ok; - _ -> - Binary = <>, - file_handle_cache:append( - Hdl, case {Del, Ack} of - {del, ack} -> [Binary, Binary]; - _ -> Binary - end) - end, - Hdl. - -read_bounded_segment(Seg, {StartSeg, StartRelSeq}, {EndSeg, EndRelSeq}, - {Messages, Segments}, Dir) -> - Segment = segment_find_or_new(Seg, Dir, Segments), - {segment_entries_foldr( - fun (RelSeq, {{Guid, MsgProps, IsPersistent}, IsDelivered, no_ack}, Acc) - when (Seg > StartSeg orelse StartRelSeq =< RelSeq) andalso - (Seg < EndSeg orelse EndRelSeq >= RelSeq) -> - [ {Guid, reconstruct_seq_id(StartSeg, RelSeq), MsgProps, - IsPersistent, IsDelivered == del} | Acc ]; - (_RelSeq, _Value, Acc) -> - Acc - end, Messages, Segment), - segment_store(Segment, Segments)}. - -segment_entries_foldr(Fun, Init, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, _UnackedCount} = load_segment(false, Segment), - {SegEntries1, _UnackedCountD} = segment_plus_journal(SegEntries, JEntries), - array:sparse_foldr(Fun, Init, SegEntries1). - -%% Loading segments -%% -%% Does not do any combining with the journal at all. -load_segment(KeepAcked, #segment { path = Path }) -> - case filelib:is_file(Path) of - false -> {array_new(), 0}; - true -> {ok, Hdl} = file_handle_cache:open(Path, ?READ_AHEAD_MODE, []), - {ok, 0} = file_handle_cache:position(Hdl, bof), - Res = load_segment_entries(KeepAcked, Hdl, array_new(), 0), - ok = file_handle_cache:close(Hdl), - Res - end. - -load_segment_entries(KeepAcked, Hdl, SegEntries, UnackedCount) -> - case file_handle_cache:read(Hdl, ?REL_SEQ_ONLY_ENTRY_LENGTH_BYTES) of - {ok, <>} -> - {Guid, MsgProps} = read_pub_record_body(Hdl), - Obj = {{Guid, MsgProps, 1 == IsPersistentNum}, no_del, no_ack}, - SegEntries1 = array:set(RelSeq, Obj, SegEntries), - load_segment_entries(KeepAcked, Hdl, SegEntries1, - UnackedCount + 1); - {ok, <>} -> - {UnackedCountDelta, SegEntries1} = - case array:get(RelSeq, SegEntries) of - {Pub, no_del, no_ack} -> - { 0, array:set(RelSeq, {Pub, del, no_ack}, SegEntries)}; - {Pub, del, no_ack} when KeepAcked -> - {-1, array:set(RelSeq, {Pub, del, ack}, SegEntries)}; - {_Pub, del, no_ack} -> - {-1, array:reset(RelSeq, SegEntries)} - end, - load_segment_entries(KeepAcked, Hdl, SegEntries1, - UnackedCount + UnackedCountDelta); - _ErrOrEoF -> - {SegEntries, UnackedCount} - end. - -array_new() -> - array:new([{default, undefined}, fixed, {size, ?SEGMENT_ENTRY_COUNT}]). - -bool_to_int(true ) -> 1; -bool_to_int(false) -> 0. - -%%---------------------------------------------------------------------------- -%% journal & segment combination -%%---------------------------------------------------------------------------- - -%% Combine what we have just read from a segment file with what we're -%% holding for that segment in memory. There must be no duplicates. -segment_plus_journal(SegEntries, JEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {SegEntriesOut, AdditionalUnacked}) -> - SegEntry = array:get(RelSeq, SegEntriesOut), - {Obj, AdditionalUnackedDelta} = - segment_plus_journal1(SegEntry, JObj), - {case Obj of - undefined -> array:reset(RelSeq, SegEntriesOut); - _ -> array:set(RelSeq, Obj, SegEntriesOut) - end, - AdditionalUnacked + AdditionalUnackedDelta} - end, {SegEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item which we may be adding to (for items only in the journal), -%% modifying in (bits in both), or, when returning 'undefined', -%% erasing from (ack in journal, not segment) the segment array. The -%% other element of the tuple is the delta for AdditionalUnacked. -segment_plus_journal1(undefined, {?PUB, no_del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, ack}) -> - {undefined, 0}; - -segment_plus_journal1({?PUB = Pub, no_del, no_ack}, {no_pub, del, no_ack}) -> - {{Pub, del, no_ack}, 0}; -segment_plus_journal1({?PUB, no_del, no_ack}, {no_pub, del, ack}) -> - {undefined, -1}; -segment_plus_journal1({?PUB, del, no_ack}, {no_pub, no_del, ack}) -> - {undefined, -1}. - -%% Remove from the journal entries for a segment, items that are -%% duplicates of entries found in the segment itself. Used on start up -%% to clean up the journal. -journal_minus_segment(JEntries, SegEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {JEntriesOut, UnackedRemoved}) -> - SegEntry = array:get(RelSeq, SegEntries), - {Obj, UnackedRemovedDelta} = - journal_minus_segment1(JObj, SegEntry), - {case Obj of - keep -> JEntriesOut; - undefined -> array:reset(RelSeq, JEntriesOut); - _ -> array:set(RelSeq, Obj, JEntriesOut) - end, - UnackedRemoved + UnackedRemovedDelta} - end, {JEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item we are adding to or modifying in the (initially fresh) journal -%% array. If the item is 'undefined' we leave the journal array -%% alone. The other element of the tuple is the deltas for -%% UnackedRemoved. - -%% Both the same. Must be at least the publish -journal_minus_segment1({?PUB, _Del, no_ack} = Obj, Obj) -> - {undefined, 1}; -journal_minus_segment1({?PUB, _Del, ack} = Obj, Obj) -> - {undefined, 0}; - -%% Just publish in journal -journal_minus_segment1({?PUB, no_del, no_ack}, undefined) -> - {keep, 0}; - -%% Publish and deliver in journal -journal_minus_segment1({?PUB, del, no_ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, no_ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, no_ack}, 1}; - -%% Publish, deliver and ack in journal -journal_minus_segment1({?PUB, del, ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, ack}, 1}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, del, no_ack}) -> - {{no_pub, no_del, ack}, 1}; - -%% Just deliver in journal -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, del, no_ack}) -> - {undefined, 0}; - -%% Just ack in journal -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, ack}) -> - {undefined, -1}; - -%% Deliver and ack in journal -journal_minus_segment1({no_pub, del, ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, no_ack}) -> - {{no_pub, no_del, ack}, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, ack}) -> - {undefined, -1}. - -%%---------------------------------------------------------------------------- -%% upgrade -%%---------------------------------------------------------------------------- - -add_queue_ttl() -> - foreach_queue_index({fun add_queue_ttl_journal/1, - fun add_queue_ttl_segment/1}). - -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {[<>, Guid, - expiry_to_binary(undefined)], Rest}; -add_queue_ttl_journal(_) -> - stop. - -add_queue_ttl_segment(<>) -> - {[<>, Guid, expiry_to_binary(undefined)], Rest}; -add_queue_ttl_segment(<>) -> - {<>, - Rest}; -add_queue_ttl_segment(_) -> - stop. - -%%---------------------------------------------------------------------------- - -foreach_queue_index(Funs) -> - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> - transform_queue(filename:join(QueuesDir, QueueDirName), - Gatherer, Funs) - end) - end || QueueDirName <- QueueDirNames], - empty = gatherer:out(Gatherer), - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer). - -transform_queue(Dir, Gatherer, {JournalFun, SegmentFun}) -> - ok = transform_file(filename:join(Dir, ?JOURNAL_FILENAME), JournalFun), - [ok = transform_file(filename:join(Dir, Seg), SegmentFun) - || Seg <- filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)], - ok = gatherer:finish(Gatherer). - -transform_file(Path, Fun) -> - PathTmp = Path ++ ".upgrade", - case filelib:file_size(Path) of - 0 -> ok; - Size -> {ok, PathTmpHdl} = - file_handle_cache:open(PathTmp, ?WRITE_MODE, - [{write_buffer, infinity}]), - - {ok, PathHdl} = file_handle_cache:open( - Path, [{read_ahead, Size} | ?READ_MODE], []), - {ok, Content} = file_handle_cache:read(PathHdl, Size), - ok = file_handle_cache:close(PathHdl), - - ok = drive_transform_fun(Fun, PathTmpHdl, Content), - - ok = file_handle_cache:close(PathTmpHdl), - ok = file:rename(PathTmp, Path) - end. - -drive_transform_fun(Fun, Hdl, Contents) -> - case Fun(Contents) of - stop -> ok; - {Output, Contents1} -> ok = file_handle_cache:append(Hdl, Output), - drive_transform_fun(Fun, Hdl, Contents1) - end. diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl deleted file mode 100644 index b172db56..00000000 --- a/src/rabbit_reader.erl +++ /dev/null @@ -1,910 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_reader). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([start_link/3, info_keys/0, info/1, info/2, shutdown/2]). - --export([system_continue/3, system_terminate/4, system_code_change/4]). - --export([init/4, mainloop/2]). - --export([conserve_memory/2, server_properties/1]). - --export([process_channel_frame/5]). %% used by erlang-client - --export([emit_stats/1]). - --define(HANDSHAKE_TIMEOUT, 10). --define(NORMAL_TIMEOUT, 3). --define(CLOSING_TIMEOUT, 1). --define(CHANNEL_TERMINATION_TIMEOUT, 3). --define(SILENT_CLOSE_DELAY, 3). --define(FRAME_MAX, 131072). %% set to zero once QPid fix their negotiation - -%--------------------------------------------------------------------------- - --record(v1, {parent, sock, connection, callback, recv_length, recv_ref, - connection_state, queue_collector, heartbeater, stats_timer, - channel_sup_sup_pid, start_heartbeat_fun, auth_mechanism, - auth_state}). - --define(STATISTICS_KEYS, [pid, recv_oct, recv_cnt, send_oct, send_cnt, - send_pend, state, channels]). - --define(CREATION_EVENT_KEYS, [pid, address, port, peer_address, peer_port, ssl, - peer_cert_subject, peer_cert_issuer, - peer_cert_validity, auth_mechanism, - ssl_protocol, ssl_key_exchange, - ssl_cipher, ssl_hash, - protocol, user, vhost, timeout, frame_max, - client_properties]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - --define(IS_RUNNING(State), - (State#v1.connection_state =:= running orelse - State#v1.connection_state =:= blocking orelse - State#v1.connection_state =:= blocked)). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/3 :: (pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) -> - rabbit_types:ok(pid())). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(shutdown/2 :: (pid(), string()) -> 'ok'). --spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok'). --spec(server_properties/1 :: (rabbit_types:protocol()) -> - rabbit_framing:amqp_table()). - -%% These specs only exists to add no_return() to keep dialyzer happy --spec(init/4 :: (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) - -> no_return()). --spec(start_connection/7 :: - (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun(), any(), - rabbit_net:socket(), - fun ((rabbit_net:socket()) -> - rabbit_types:ok_or_error2( - rabbit_net:socket(), any()))) -> no_return()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link(ChannelSupSupPid, Collector, StartHeartbeatFun) -> - {ok, proc_lib:spawn_link(?MODULE, init, [self(), ChannelSupSupPid, - Collector, StartHeartbeatFun])}. - -shutdown(Pid, Explanation) -> - gen_server:call(Pid, {shutdown, Explanation}, infinity). - -init(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun) -> - Deb = sys:debug_options([]), - receive - {go, Sock, SockTransform} -> - start_connection( - Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, Sock, - SockTransform) - end. - -system_continue(Parent, Deb, State) -> - ?MODULE:mainloop(Deb, State#v1{parent = Parent}). - -system_terminate(Reason, _Parent, _Deb, _State) -> - exit(Reason). - -system_code_change(Misc, _Module, _OldVsn, _Extra) -> - {ok, Misc}. - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -emit_stats(Pid) -> - gen_server:cast(Pid, emit_stats). - -conserve_memory(Pid, Conserve) -> - Pid ! {conserve_memory, Conserve}, - ok. - -server_properties(Protocol) -> - {ok, Product} = application:get_key(rabbit, id), - {ok, Version} = application:get_key(rabbit, vsn), - - %% Get any configuration-specified server properties - {ok, RawConfigServerProps} = application:get_env(rabbit, - server_properties), - - %% Normalize the simplifed (2-tuple) and unsimplified (3-tuple) forms - %% from the config and merge them with the generated built-in properties - NormalizedConfigServerProps = - [{<<"capabilities">>, table, server_capabilities(Protocol)} | - [case X of - {KeyAtom, Value} -> {list_to_binary(atom_to_list(KeyAtom)), - longstr, - list_to_binary(Value)}; - {BinKey, Type, Value} -> {BinKey, Type, Value} - end || X <- RawConfigServerProps ++ - [{product, Product}, - {version, Version}, - {platform, "Erlang/OTP"}, - {copyright, ?COPYRIGHT_MESSAGE}, - {information, ?INFORMATION_MESSAGE}]]], - - %% Filter duplicated properties in favour of config file provided values - lists:usort(fun ({K1,_,_}, {K2,_,_}) -> K1 =< K2 end, - NormalizedConfigServerProps). - -server_capabilities(rabbit_framing_amqp_0_9_1) -> - [{<<"publisher_confirms">>, bool, true}, - {<<"exchange_exchange_bindings">>, bool, true}, - {<<"basic.nack">>, bool, true}]; -server_capabilities(_) -> - []. - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -socket_op(Sock, Fun) -> - case Fun(Sock) of - {ok, Res} -> Res; - {error, Reason} -> rabbit_log:error("error on TCP connection ~p:~p~n", - [self(), Reason]), - rabbit_log:info("closing TCP connection ~p~n", - [self()]), - exit(normal) - end. - -start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, - Sock, SockTransform) -> - process_flag(trap_exit, true), - {PeerAddress, PeerPort} = socket_op(Sock, fun rabbit_net:peername/1), - PeerAddressS = rabbit_misc:ntoab(PeerAddress), - rabbit_log:info("starting TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - ClientSock = socket_op(Sock, SockTransform), - erlang:send_after(?HANDSHAKE_TIMEOUT * 1000, self(), - handshake_timeout), - try - mainloop(Deb, switch_callback( - #v1{parent = Parent, - sock = ClientSock, - connection = #connection{ - protocol = none, - user = none, - timeout_sec = ?HANDSHAKE_TIMEOUT, - frame_max = ?FRAME_MIN_SIZE, - vhost = none, - client_properties = none}, - callback = uninitialized_callback, - recv_length = 0, - recv_ref = none, - connection_state = pre_init, - queue_collector = Collector, - heartbeater = none, - stats_timer = - rabbit_event:init_stats_timer(), - channel_sup_sup_pid = ChannelSupSupPid, - start_heartbeat_fun = StartHeartbeatFun, - auth_mechanism = none, - auth_state = none - }, - handshake, 8)) - catch - Ex -> (if Ex == connection_closed_abruptly -> - fun rabbit_log:warning/2; - true -> - fun rabbit_log:error/2 - end)("exception on TCP connection ~p from ~s:~p~n~p~n", - [self(), PeerAddressS, PeerPort, Ex]) - after - rabbit_log:info("closing TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - %% We don't close the socket explicitly. The reader is the - %% controlling process and hence its termination will close - %% the socket. Furthermore, gen_tcp:close/1 waits for pending - %% output to be sent, which results in unnecessary delays. - %% - %% gen_tcp:close(ClientSock), - rabbit_event:notify(connection_closed, [{pid, self()}]) - end, - done. - -mainloop(Deb, State = #v1{parent = Parent, sock= Sock, recv_ref = Ref}) -> - receive - {inet_async, Sock, Ref, {ok, Data}} -> - mainloop(Deb, handle_input(State#v1.callback, Data, - State#v1{recv_ref = none})); - {inet_async, Sock, Ref, {error, closed}} -> - if State#v1.connection_state =:= closed -> - State; - true -> - throw(connection_closed_abruptly) - end; - {inet_async, Sock, Ref, {error, Reason}} -> - throw({inet_error, Reason}); - {conserve_memory, Conserve} -> - mainloop(Deb, internal_conserve_memory(Conserve, State)); - {channel_closing, ChPid} -> - ok = rabbit_channel:ready_for_close(ChPid), - channel_cleanup(ChPid), - mainloop(Deb, State); - {'EXIT', Parent, Reason} -> - terminate(io_lib:format("broker forced connection closure " - "with reason '~w'", [Reason]), State), - %% this is what we are expected to do according to - %% http://www.erlang.org/doc/man/sys.html - %% - %% If we wanted to be *really* nice we should wait for a - %% while for clients to close the socket at their end, - %% just as we do in the ordinary error case. However, - %% since this termination is initiated by our parent it is - %% probably more important to exit quickly. - exit(Reason); - {channel_exit, _Channel, E = {writer, send_failed, _Error}} -> - throw(E); - {channel_exit, Channel, Reason} -> - mainloop(Deb, handle_exception(State, Channel, Reason)); - {'DOWN', _MRef, process, ChPid, Reason} -> - mainloop(Deb, handle_dependent_exit(ChPid, Reason, State)); - terminate_connection -> - State; - handshake_timeout -> - if ?IS_RUNNING(State) orelse - State#v1.connection_state =:= closing orelse - State#v1.connection_state =:= closed -> - mainloop(Deb, State); - true -> - throw({handshake_timeout, State#v1.callback}) - end; - timeout -> - case State#v1.connection_state of - closed -> mainloop(Deb, State); - S -> throw({timeout, S}) - end; - {'$gen_call', From, {shutdown, Explanation}} -> - {ForceTermination, NewState} = terminate(Explanation, State), - gen_server:reply(From, ok), - case ForceTermination of - force -> ok; - normal -> mainloop(Deb, NewState) - end; - {'$gen_call', From, info} -> - gen_server:reply(From, infos(?INFO_KEYS, State)), - mainloop(Deb, State); - {'$gen_call', From, {info, Items}} -> - gen_server:reply(From, try {ok, infos(Items, State)} - catch Error -> {error, Error} - end), - mainloop(Deb, State); - {'$gen_cast', emit_stats} -> - State1 = internal_emit_stats(State), - mainloop(Deb, State1); - {system, From, Request} -> - sys:handle_system_msg(Request, From, - Parent, ?MODULE, Deb, State); - Other -> - %% internal error -> something worth dying for - exit({unexpected_message, Other}) - end. - -switch_callback(State = #v1{connection_state = blocked, - heartbeater = Heartbeater}, Callback, Length) -> - ok = rabbit_heartbeat:pause_monitor(Heartbeater), - State#v1{callback = Callback, recv_length = Length, recv_ref = none}; -switch_callback(State, Callback, Length) -> - Ref = inet_op(fun () -> rabbit_net:async_recv( - State#v1.sock, Length, infinity) end), - State#v1{callback = Callback, recv_length = Length, recv_ref = Ref}. - -terminate(Explanation, State) when ?IS_RUNNING(State) -> - {normal, send_exception(State, 0, - rabbit_misc:amqp_error( - connection_forced, Explanation, [], none))}; -terminate(_Explanation, State) -> - {force, State}. - -internal_conserve_memory(true, State = #v1{connection_state = running}) -> - State#v1{connection_state = blocking}; -internal_conserve_memory(false, State = #v1{connection_state = blocking}) -> - State#v1{connection_state = running}; -internal_conserve_memory(false, State = #v1{connection_state = blocked, - heartbeater = Heartbeater, - callback = Callback, - recv_length = Length, - recv_ref = none}) -> - ok = rabbit_heartbeat:resume_monitor(Heartbeater), - switch_callback(State#v1{connection_state = running}, Callback, Length); -internal_conserve_memory(_Conserve, State) -> - State. - -close_connection(State = #v1{queue_collector = Collector, - connection = #connection{ - timeout_sec = TimeoutSec}}) -> - %% The spec says "Exclusive queues may only be accessed by the - %% current connection, and are deleted when that connection - %% closes." This does not strictly imply synchrony, but in - %% practice it seems to be what people assume. - rabbit_queue_collector:delete_all(Collector), - %% We terminate the connection after the specified interval, but - %% no later than ?CLOSING_TIMEOUT seconds. - TimeoutMillisec = - 1000 * if TimeoutSec > 0 andalso - TimeoutSec < ?CLOSING_TIMEOUT -> TimeoutSec; - true -> ?CLOSING_TIMEOUT - end, - erlang:send_after(TimeoutMillisec, self(), terminate_connection), - State#v1{connection_state = closed}. - -handle_dependent_exit(ChPid, Reason, State) -> - case termination_kind(Reason) of - controlled -> - channel_cleanup(ChPid), - maybe_close(State); - uncontrolled -> - case channel_cleanup(ChPid) of - undefined -> exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> rabbit_log:error( - "connection ~p, channel ~p - error:~n~p~n", - [self(), Channel, Reason]), - maybe_close( - handle_exception(State, Channel, Reason)) - end - end. - -channel_cleanup(ChPid) -> - case get({ch_pid, ChPid}) of - undefined -> undefined; - {Channel, MRef} -> erase({channel, Channel}), - erase({ch_pid, ChPid}), - erlang:demonitor(MRef, [flush]), - Channel - end. - -all_channels() -> [ChPid || {{ch_pid, ChPid}, _ChannelMRef} <- get()]. - -terminate_channels() -> - NChannels = - length([rabbit_channel:shutdown(ChPid) || ChPid <- all_channels()]), - if NChannels > 0 -> - Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, - TimerRef = erlang:send_after(Timeout, self(), cancel_wait), - wait_for_channel_termination(NChannels, TimerRef); - true -> ok - end. - -wait_for_channel_termination(0, TimerRef) -> - case erlang:cancel_timer(TimerRef) of - false -> receive - cancel_wait -> ok - end; - _ -> ok - end; - -wait_for_channel_termination(N, TimerRef) -> - receive - {'DOWN', _MRef, process, ChPid, Reason} -> - case channel_cleanup(ChPid) of - undefined -> - exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> - case termination_kind(Reason) of - controlled -> - ok; - uncontrolled -> - rabbit_log:error( - "connection ~p, channel ~p - " - "error while terminating:~n~p~n", - [self(), Channel, Reason]) - end, - wait_for_channel_termination(N-1, TimerRef) - end; - cancel_wait -> - exit(channel_termination_timeout) - end. - -maybe_close(State = #v1{connection_state = closing, - connection = #connection{protocol = Protocol}, - sock = Sock}) -> - case all_channels() of - [] -> - NewState = close_connection(State), - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - NewState; - _ -> State - end; -maybe_close(State) -> - State. - -termination_kind(normal) -> controlled; -termination_kind(_) -> uncontrolled. - -handle_frame(Type, 0, Payload, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}}) - when CS =:= closing; CS =:= closed -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - _Other -> State - end; -handle_frame(_Type, _Channel, _Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_frame(Type, 0, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, 0, Type, Payload}); - heartbeat -> State; - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - Other -> throw({unexpected_frame_on_channel0, Other}) - end; -handle_frame(Type, Channel, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, Channel, Type, Payload}); - heartbeat -> throw({unexpected_heartbeat_frame, Channel}); - AnalyzedFrame -> - case get({channel, Channel}) of - {ChPid, FramingState} -> - NewAState = process_channel_frame( - AnalyzedFrame, self(), - Channel, ChPid, FramingState), - put({channel, Channel}, {ChPid, NewAState}), - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - channel_cleanup(ChPid), - State; - {method, MethodName, _} -> - case (State#v1.connection_state =:= blocking - andalso - Protocol:method_has_content(MethodName)) of - true -> State#v1{connection_state = blocked}; - false -> State - end; - _ -> - State - end; - undefined -> - case ?IS_RUNNING(State) of - true -> send_to_new_channel( - Channel, AnalyzedFrame, State); - false -> throw({channel_frame_while_starting, - Channel, State#v1.connection_state, - AnalyzedFrame}) - end - end - end. - -handle_input(frame_header, <>, State) -> - ensure_stats_timer( - switch_callback(State, {frame_payload, Type, Channel, PayloadSize}, - PayloadSize + 1)); - -handle_input({frame_payload, Type, Channel, PayloadSize}, - PayloadAndMarker, State) -> - case PayloadAndMarker of - <> -> - handle_frame(Type, Channel, Payload, - switch_callback(State, frame_header, 7)); - _ -> - throw({bad_payload, Type, Channel, PayloadSize, PayloadAndMarker}) - end; - -%% The two rules pertaining to version negotiation: -%% -%% * If the server cannot support the protocol specified in the -%% protocol header, it MUST respond with a valid protocol header and -%% then close the socket connection. -%% -%% * The server MUST provide a protocol version that is lower than or -%% equal to that requested by the client in the protocol header. -handle_input(handshake, <<"AMQP", 0, 0, 9, 1>>, State) -> - start_connection({0, 9, 1}, rabbit_framing_amqp_0_9_1, State); - -%% This is the protocol header for 0-9, which we can safely treat as -%% though it were 0-9-1. -handle_input(handshake, <<"AMQP", 1, 1, 0, 9>>, State) -> - start_connection({0, 9, 0}, rabbit_framing_amqp_0_9_1, State); - -%% This is what most clients send for 0-8. The 0-8 spec, confusingly, -%% defines the version as 8-0. -handle_input(handshake, <<"AMQP", 1, 1, 8, 0>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -%% The 0-8 spec as on the AMQP web site actually has this as the -%% protocol header; some libraries e.g., py-amqplib, send it when they -%% want 0-8. -handle_input(handshake, <<"AMQP", 1, 1, 9, 1>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -handle_input(handshake, <<"AMQP", A, B, C, D>>, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_version, A, B, C, D}); - -handle_input(handshake, Other, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_header, Other}); - -handle_input(Callback, Data, _State) -> - throw({bad_input, Callback, Data}). - -%% Offer a protocol version to the client. Connection.start only -%% includes a major and minor version number, Luckily 0-9 and 0-9-1 -%% are similar enough that clients will be happy with either. -start_connection({ProtocolMajor, ProtocolMinor, _ProtocolRevision}, - Protocol, - State = #v1{sock = Sock, connection = Connection}) -> - Start = #'connection.start'{ - version_major = ProtocolMajor, - version_minor = ProtocolMinor, - server_properties = server_properties(Protocol), - mechanisms = auth_mechanisms_binary(Sock), - locales = <<"en_US">> }, - ok = send_on_channel0(Sock, Start, Protocol), - switch_callback(State#v1{connection = Connection#connection{ - timeout_sec = ?NORMAL_TIMEOUT, - protocol = Protocol}, - connection_state = starting}, - frame_header, 7). - -refuse_connection(Sock, Exception) -> - ok = inet_op(fun () -> rabbit_net:send(Sock, <<"AMQP",0,0,9,1>>) end), - throw(Exception). - -ensure_stats_timer(State = #v1{stats_timer = StatsTimer, - connection_state = running}) -> - Self = self(), - State#v1{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(Self) end)}; -ensure_stats_timer(State) -> - State. - -%%-------------------------------------------------------------------------- - -handle_method0(MethodName, FieldsBin, - State = #v1{connection = #connection{protocol = Protocol}}) -> - HandleException = - fun(R) -> - case ?IS_RUNNING(State) of - true -> send_exception(State, 0, R); - %% We don't trust the client at this point - force - %% them to wait for a bit so they can't DOS us with - %% repeated failed logins etc. - false -> timer:sleep(?SILENT_CLOSE_DELAY * 1000), - throw({channel0_error, State#v1.connection_state, R}) - end - end, - try - handle_method0(Protocol:decode_method_fields(MethodName, FieldsBin), - State) - catch exit:#amqp_error{method = none} = Reason -> - HandleException(Reason#amqp_error{method = MethodName}); - Type:Reason -> - HandleException({Type, Reason, MethodName, erlang:get_stacktrace()}) - end. - -handle_method0(#'connection.start_ok'{mechanism = Mechanism, - response = Response, - client_properties = ClientProperties}, - State0 = #v1{connection_state = starting, - connection = Connection, - sock = Sock}) -> - AuthMechanism = auth_mechanism_to_module(Mechanism, Sock), - Capabilities = - case rabbit_misc:table_lookup(ClientProperties, <<"capabilities">>) of - {table, Capabilities1} -> Capabilities1; - _ -> [] - end, - State = State0#v1{auth_mechanism = AuthMechanism, - auth_state = AuthMechanism:init(Sock), - connection_state = securing, - connection = - Connection#connection{ - client_properties = ClientProperties, - capabilities = Capabilities}}, - auth_phase(Response, State); - -handle_method0(#'connection.secure_ok'{response = Response}, - State = #v1{connection_state = securing}) -> - auth_phase(Response, State); - -handle_method0(#'connection.tune_ok'{frame_max = FrameMax, - heartbeat = ClientHeartbeat}, - State = #v1{connection_state = tuning, - connection = Connection, - sock = Sock, - start_heartbeat_fun = SHF}) -> - if (FrameMax /= 0) and (FrameMax < ?FRAME_MIN_SIZE) -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w < ~w min size", - [FrameMax, ?FRAME_MIN_SIZE]); - (?FRAME_MAX /= 0) and (FrameMax > ?FRAME_MAX) -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w > ~w max size", - [FrameMax, ?FRAME_MAX]); - true -> - Frame = rabbit_binary_generator:build_heartbeat_frame(), - SendFun = fun() -> catch rabbit_net:send(Sock, Frame) end, - Parent = self(), - ReceiveFun = fun() -> Parent ! timeout end, - Heartbeater = SHF(Sock, ClientHeartbeat, SendFun, - ClientHeartbeat, ReceiveFun), - State#v1{connection_state = opening, - connection = Connection#connection{ - timeout_sec = ClientHeartbeat, - frame_max = FrameMax}, - heartbeater = Heartbeater} - end; - -handle_method0(#'connection.open'{virtual_host = VHostPath}, - - State = #v1{connection_state = opening, - connection = Connection = #connection{ - user = User, - protocol = Protocol}, - sock = Sock, - stats_timer = StatsTimer}) -> - ok = rabbit_access_control:check_vhost_access(User, VHostPath), - NewConnection = Connection#connection{vhost = VHostPath}, - ok = send_on_channel0(Sock, #'connection.open_ok'{}, Protocol), - State1 = internal_conserve_memory( - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - State#v1{connection_state = running, - connection = NewConnection}), - rabbit_event:notify(connection_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State1) end), - State1; -handle_method0(#'connection.close'{}, State) when ?IS_RUNNING(State) -> - lists:foreach(fun rabbit_channel:shutdown/1, all_channels()), - maybe_close(State#v1{connection_state = closing}); -handle_method0(#'connection.close'{}, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}, - sock = Sock}) - when CS =:= closing; CS =:= closed -> - %% We're already closed or closing, so we don't need to cleanup - %% anything. - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - State; -handle_method0(#'connection.close_ok'{}, - State = #v1{connection_state = closed}) -> - self() ! terminate_connection, - State; -handle_method0(_Method, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_method0(_Method, #v1{connection_state = S}) -> - rabbit_misc:protocol_error( - channel_error, "unexpected method in connection state ~w", [S]). - -send_on_channel0(Sock, Method, Protocol) -> - ok = rabbit_writer:internal_send_command(Sock, 0, Method, Protocol). - -auth_mechanism_to_module(TypeBin, Sock) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown authentication mechanism '~s'", - [TypeBin]); - T -> - case {lists:member(T, auth_mechanisms(Sock)), - rabbit_registry:lookup_module(auth_mechanism, T)} of - {true, {ok, Module}} -> - Module; - _ -> - rabbit_misc:protocol_error( - command_invalid, - "invalid authentication mechanism '~s'", [T]) - end - end. - -auth_mechanisms(Sock) -> - {ok, Configured} = application:get_env(auth_mechanisms), - [Name || {Name, Module} <- rabbit_registry:lookup_all(auth_mechanism), - Module:should_offer(Sock), lists:member(Name, Configured)]. - -auth_mechanisms_binary(Sock) -> - list_to_binary( - string:join( - [atom_to_list(A) || A <- auth_mechanisms(Sock)], " ")). - -auth_phase(Response, - State = #v1{auth_mechanism = AuthMechanism, - auth_state = AuthState, - connection = Connection = - #connection{protocol = Protocol}, - sock = Sock}) -> - case AuthMechanism:handle_response(Response, AuthState) of - {refused, Msg, Args} -> - rabbit_misc:protocol_error( - access_refused, "~s login refused: ~s", - [proplists:get_value(name, AuthMechanism:description()), - io_lib:format(Msg, Args)]); - {protocol_error, Msg, Args} -> - rabbit_misc:protocol_error(syntax_error, Msg, Args); - {challenge, Challenge, AuthState1} -> - Secure = #'connection.secure'{challenge = Challenge}, - ok = send_on_channel0(Sock, Secure, Protocol), - State#v1{auth_state = AuthState1}; - {ok, User} -> - Tune = #'connection.tune'{channel_max = 0, - frame_max = ?FRAME_MAX, - heartbeat = 0}, - ok = send_on_channel0(Sock, Tune, Protocol), - State#v1{connection_state = tuning, - connection = Connection#connection{user = User}} - end. - -%%-------------------------------------------------------------------------- - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, #v1{}) -> - self(); -i(address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({A, _}) -> A end, Sock); -i(port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({_, P}) -> P end, Sock); -i(peer_address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({A, _}) -> A end, Sock); -i(peer_port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({_, P}) -> P end, Sock); -i(ssl, #v1{sock = Sock}) -> - rabbit_net:is_ssl(Sock); -i(ssl_protocol, #v1{sock = Sock}) -> - ssl_info(fun ({P, _}) -> P end, Sock); -i(ssl_key_exchange, #v1{sock = Sock}) -> - ssl_info(fun ({_, {K, _, _}}) -> K end, Sock); -i(ssl_cipher, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, C, _}}) -> C end, Sock); -i(ssl_hash, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, _, H}}) -> H end, Sock); -i(peer_cert_issuer, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_issuer/1, Sock); -i(peer_cert_subject, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_subject/1, Sock); -i(peer_cert_validity, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_validity/1, Sock); -i(SockStat, #v1{sock = Sock}) when SockStat =:= recv_oct; - SockStat =:= recv_cnt; - SockStat =:= send_oct; - SockStat =:= send_cnt; - SockStat =:= send_pend -> - socket_info(fun () -> rabbit_net:getstat(Sock, [SockStat]) end, - fun ([{_, I}]) -> I end); -i(state, #v1{connection_state = S}) -> - S; -i(channels, #v1{}) -> - length(all_channels()); -i(protocol, #v1{connection = #connection{protocol = none}}) -> - none; -i(protocol, #v1{connection = #connection{protocol = Protocol}}) -> - Protocol:version(); -i(auth_mechanism, #v1{auth_mechanism = none}) -> - none; -i(auth_mechanism, #v1{auth_mechanism = Mechanism}) -> - proplists:get_value(name, Mechanism:description()); -i(user, #v1{connection = #connection{user = #user{username = Username}}}) -> - Username; -i(user, #v1{connection = #connection{user = none}}) -> - ''; -i(vhost, #v1{connection = #connection{vhost = VHost}}) -> - VHost; -i(timeout, #v1{connection = #connection{timeout_sec = Timeout}}) -> - Timeout; -i(frame_max, #v1{connection = #connection{frame_max = FrameMax}}) -> - FrameMax; -i(client_properties, #v1{connection = #connection{ - client_properties = ClientProperties}}) -> - ClientProperties; -i(Item, #v1{}) -> - throw({bad_argument, Item}). - -socket_info(Get, Select, Sock) -> - socket_info(fun() -> Get(Sock) end, Select). - -socket_info(Get, Select) -> - case Get() of - {ok, T} -> Select(T); - {error, _} -> '' - end. - -ssl_info(F, Sock) -> - %% The first ok form is R14 - %% The second is R13 - the extra term is exportability (by inspection, - %% the docs are wrong) - case rabbit_net:ssl_info(Sock) of - nossl -> ''; - {error, _} -> ''; - {ok, {P, {K, C, H}}} -> F({P, {K, C, H}}); - {ok, {P, {K, C, H, _}}} -> F({P, {K, C, H}}) - end. - -cert_info(F, Sock) -> - case rabbit_net:peercert(Sock) of - nossl -> ''; - {error, no_peercert} -> ''; - {ok, Cert} -> list_to_binary(F(Cert)) - end. - -%%-------------------------------------------------------------------------- - -send_to_new_channel(Channel, AnalyzedFrame, State) -> - #v1{sock = Sock, queue_collector = Collector, - channel_sup_sup_pid = ChanSupSup, - connection = #connection{protocol = Protocol, - frame_max = FrameMax, - user = User, - vhost = VHost, - capabilities = Capabilities}} = State, - {ok, _ChSupPid, {ChPid, AState}} = - rabbit_channel_sup_sup:start_channel( - ChanSupSup, {tcp, Sock, Channel, FrameMax, self(), Protocol, User, - VHost, Capabilities, Collector}), - MRef = erlang:monitor(process, ChPid), - NewAState = process_channel_frame(AnalyzedFrame, self(), - Channel, ChPid, AState), - put({channel, Channel}, {ChPid, NewAState}), - put({ch_pid, ChPid}, {Channel, MRef}), - State. - -process_channel_frame(Frame, ErrPid, Channel, ChPid, AState) -> - case rabbit_command_assembler:process(Frame, AState) of - {ok, NewAState} -> NewAState; - {ok, Method, NewAState} -> rabbit_channel:do(ChPid, Method), - NewAState; - {ok, Method, Content, NewAState} -> rabbit_channel:do(ChPid, - Method, Content), - NewAState; - {error, Reason} -> ErrPid ! {channel_exit, Channel, - Reason}, - AState - end. - -handle_exception(State = #v1{connection_state = closed}, _Channel, _Reason) -> - State; -handle_exception(State, Channel, Reason) -> - send_exception(State, Channel, Reason). - -send_exception(State = #v1{connection = #connection{protocol = Protocol}}, - Channel, Reason) -> - {0, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - terminate_channels(), - State1 = close_connection(State), - ok = rabbit_writer:internal_send_command( - State1#v1.sock, 0, CloseMethod, Protocol), - State1. - -internal_emit_stats(State = #v1{stats_timer = StatsTimer}) -> - rabbit_event:notify(connection_stats, infos(?STATISTICS_KEYS, State)), - State#v1{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}. diff --git a/src/rabbit_registry.erl b/src/rabbit_registry.erl deleted file mode 100644 index 9821ae7b..00000000 --- a/src/rabbit_registry.erl +++ /dev/null @@ -1,124 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_registry). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --export([register/3, binary_to_type/1, lookup_module/2, lookup_all/1]). - --define(SERVER, ?MODULE). --define(ETS_NAME, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/3 :: (atom(), binary(), atom()) -> 'ok'). --spec(binary_to_type/1 :: - (binary()) -> atom() | rabbit_types:error('not_found')). --spec(lookup_module/2 :: - (atom(), atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). --spec(lookup_all/1 :: (atom()) -> [{atom(), atom()}]). - --endif. - -%%--------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -register(Class, TypeName, ModuleName) -> - gen_server:call(?SERVER, {register, Class, TypeName, ModuleName}, infinity). - -%% This is used with user-supplied arguments (e.g., on exchange -%% declare), so we restrict it to existing atoms only. This means it -%% can throw a badarg, indicating that the type cannot have been -%% registered. -binary_to_type(TypeBin) when is_binary(TypeBin) -> - case catch list_to_existing_atom(binary_to_list(TypeBin)) of - {'EXIT', {badarg, _}} -> {error, not_found}; - TypeAtom -> TypeAtom - end. - -lookup_module(Class, T) when is_atom(T) -> - case ets:lookup(?ETS_NAME, {Class, T}) of - [{_, Module}] -> - {ok, Module}; - [] -> - {error, not_found} - end. - -lookup_all(Class) -> - [{K, V} || [K, V] <- ets:match(?ETS_NAME, {{Class, '$1'}, '$2'})]. - -%%--------------------------------------------------------------------------- - -internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> - list_to_atom(binary_to_list(TypeBin)). - -internal_register(Class, TypeName, ModuleName) - when is_atom(Class), is_binary(TypeName), is_atom(ModuleName) -> - ok = sanity_check_module(class_module(Class), ModuleName), - true = ets:insert(?ETS_NAME, - {{Class, internal_binary_to_type(TypeName)}, ModuleName}), - ok. - -sanity_check_module(ClassModule, Module) -> - case catch lists:member(ClassModule, - lists:flatten( - [Bs || {Attr, Bs} <- - Module:module_info(attributes), - Attr =:= behavior orelse - Attr =:= behaviour])) of - {'EXIT', {undef, _}} -> {error, not_module}; - false -> {error, {not_type, ClassModule}}; - true -> ok - end. - -class_module(exchange) -> rabbit_exchange_type; -class_module(auth_mechanism) -> rabbit_auth_mechanism. - -%%--------------------------------------------------------------------------- - -init([]) -> - ?ETS_NAME = ets:new(?ETS_NAME, [protected, set, named_table]), - {ok, none}. - -handle_call({register, Class, TypeName, ModuleName}, _From, State) -> - ok = internal_register(Class, TypeName, ModuleName), - {reply, ok, State}; - -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_restartable_sup.erl b/src/rabbit_restartable_sup.erl deleted file mode 100644 index 0491244b..00000000 --- a/src/rabbit_restartable_sup.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_restartable_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -start_link(Name, {_M, _F, _A} = Fun) -> - supervisor:start_link({local, Name}, ?MODULE, [Fun]). - -init([{Mod, _F, _A} = Fun]) -> - {ok, {{one_for_one, 10, 10}, - [{Mod, Fun, transient, ?MAX_WAIT, worker, [Mod]}]}}. diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl deleted file mode 100644 index 53e707f4..00000000 --- a/src/rabbit_router.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_router). --include_lib("stdlib/include/qlc.hrl"). --include("rabbit.hrl"). - --export([deliver/2, match_bindings/2, match_routing_key/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([routing_key/0, routing_result/0, match_result/0]). - --type(routing_key() :: binary()). --type(routing_result() :: 'routed' | 'unroutable' | 'not_delivered'). --type(qpids() :: [pid()]). --type(match_result() :: [rabbit_types:binding_destination()]). - --spec(deliver/2 :: ([rabbit_amqqueue:name()], rabbit_types:delivery()) -> - {routing_result(), qpids()}). --spec(match_bindings/2 :: (rabbit_types:binding_source(), - fun ((rabbit_types:binding()) -> boolean())) -> - match_result()). --spec(match_routing_key/2 :: (rabbit_types:binding_source(), - [routing_key()] | ['_']) -> - match_result()). - --endif. - -%%---------------------------------------------------------------------------- - -deliver(QNames, Delivery = #delivery{mandatory = false, - immediate = false}) -> - %% optimisation: when Mandatory = false and Immediate = false, - %% rabbit_amqqueue:deliver will deliver the message to the queue - %% process asynchronously, and return true, which means all the - %% QPids will always be returned. It is therefore safe to use a - %% fire-and-forget cast here and return the QPids - the semantics - %% is preserved. This scales much better than the non-immediate - %% case below. - QPids = lookup_qpids(QNames), - delegate:invoke_no_result( - QPids, fun (Pid) -> rabbit_amqqueue:deliver(Pid, Delivery) end), - {routed, QPids}; - -deliver(QNames, Delivery = #delivery{mandatory = Mandatory, - immediate = Immediate}) -> - QPids = lookup_qpids(QNames), - {Success, _} = - delegate:invoke(QPids, - fun (Pid) -> - rabbit_amqqueue:deliver(Pid, Delivery) - end), - {Routed, Handled} = - lists:foldl(fun fold_deliveries/2, {false, []}, Success), - check_delivery(Mandatory, Immediate, {Routed, Handled}). - - -%% TODO: Maybe this should be handled by a cursor instead. -%% TODO: This causes a full scan for each entry with the same source -match_bindings(SrcName, Match) -> - Query = qlc:q([DestinationName || - #route{binding = Binding = #binding{ - source = SrcName1, - destination = DestinationName}} <- - mnesia:table(rabbit_route), - SrcName == SrcName1, - Match(Binding)]), - mnesia:async_dirty(fun qlc:e/1, [Query]). - -match_routing_key(SrcName, [RoutingKey]) -> - MatchHead = #route{binding = #binding{source = SrcName, - destination = '$1', - key = RoutingKey, - _ = '_'}}, - mnesia:dirty_select(rabbit_route, [{MatchHead, [], ['$1']}]); -match_routing_key(SrcName, [_|_] = RoutingKeys) -> - Condition = list_to_tuple(['orelse' | [{'=:=', '$2', RKey} || - RKey <- RoutingKeys]]), - MatchHead = #route{binding = #binding{source = SrcName, - destination = '$1', - key = '$2', - _ = '_'}}, - mnesia:dirty_select(rabbit_route, [{MatchHead, [Condition], ['$1']}]). - - - -%%-------------------------------------------------------------------- - -fold_deliveries({Pid, true},{_, Handled}) -> {true, [Pid|Handled]}; -fold_deliveries({_, false},{_, Handled}) -> {true, Handled}. - -%% check_delivery(Mandatory, Immediate, {WasRouted, QPids}) -check_delivery(true, _ , {false, []}) -> {unroutable, []}; -check_delivery(_ , true, {_ , []}) -> {not_delivered, []}; -check_delivery(_ , _ , {_ , Qs}) -> {routed, Qs}. - -lookup_qpids(QNames) -> - lists:foldl(fun (QName, QPids) -> - case mnesia:dirty_read({rabbit_queue, QName}) of - [#amqqueue{pid = QPid}] -> [QPid | QPids]; - [] -> QPids - end - end, [], QNames). diff --git a/src/rabbit_sasl_report_file_h.erl b/src/rabbit_sasl_report_file_h.erl deleted file mode 100644 index 6f3c5c75..00000000 --- a/src/rabbit_sasl_report_file_h.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sasl_report_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_sasl_report_file_h is a wrapper around the sasl_report_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers and performing -%% log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "sasl log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without -%% doing any log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init({File, sasl_error_logger_type()}). - -handle_event(Event, State) -> - sasl_report_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - sasl_report_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - sasl_report_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - sasl_report_file_h:terminate(Reason, State). - -code_change(_OldVsn, State, _Extra) -> - %% There is no sasl_report_file_h:code_change/3 - {ok, State}. - -%%---------------------------------------------------------------------- - -sasl_error_logger_type() -> - case application:get_env(sasl, errlog_type) of - {ok, error} -> error; - {ok, progress} -> progress; - {ok, all} -> all; - {ok, Bad} -> throw({error, {wrong_errlog_type, Bad}}); - _ -> all - end. diff --git a/src/rabbit_ssl.erl b/src/rabbit_ssl.erl deleted file mode 100644 index e831ee51..00000000 --- a/src/rabbit_ssl.erl +++ /dev/null @@ -1,173 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_ssl). - --include("rabbit.hrl"). - --include_lib("public_key/include/public_key.hrl"). - --export([peer_cert_issuer/1, peer_cert_subject/1, peer_cert_validity/1]). --export([peer_cert_subject_item/2]). - -%%-------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([certificate/0]). - --type(certificate() :: binary()). - --spec(peer_cert_issuer/1 :: (certificate()) -> string()). --spec(peer_cert_subject/1 :: (certificate()) -> string()). --spec(peer_cert_validity/1 :: (certificate()) -> string()). --spec(peer_cert_subject_item/2 :: - (certificate(), tuple()) -> string() | 'not_found'). - --endif. - -%%-------------------------------------------------------------------------- -%% High-level functions used by reader -%%-------------------------------------------------------------------------- - -%% Return a string describing the certificate's issuer. -peer_cert_issuer(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - issuer = Issuer }}) -> - format_rdn_sequence(Issuer) - end, Cert). - -%% Return a string describing the certificate's subject, as per RFC4514. -peer_cert_subject(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - format_rdn_sequence(Subject) - end, Cert). - -%% Return a part of the certificate's subject. -peer_cert_subject_item(Cert, Type) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - find_by_type(Type, Subject) - end, Cert). - -%% Return a string describing the certificate's validity. -peer_cert_validity(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - validity = {'Validity', Start, End} }}) -> - lists:flatten( - io_lib:format("~s - ~s", [format_asn1_value(Start), - format_asn1_value(End)])) - end, Cert). - -%%-------------------------------------------------------------------------- - -cert_info(F, Cert) -> - F(case public_key:pkix_decode_cert(Cert, otp) of - {ok, DecCert} -> DecCert; %%pre R14B - DecCert -> DecCert %%R14B onwards - end). - -find_by_type(Type, {rdnSequence, RDNs}) -> - case [V || #'AttributeTypeAndValue'{type = T, value = V} - <- lists:flatten(RDNs), - T == Type] of - [{printableString, S}] -> S; - [] -> not_found - end. - -%%-------------------------------------------------------------------------- -%% Formatting functions -%%-------------------------------------------------------------------------- - -%% Format and rdnSequence as a RFC4514 subject string. -format_rdn_sequence({rdnSequence, Seq}) -> - string:join(lists:reverse([format_complex_rdn(RDN) || RDN <- Seq]), ","). - -%% Format an RDN set. -format_complex_rdn(RDNs) -> - string:join([format_rdn(RDN) || RDN <- RDNs], "+"). - -%% Format an RDN. If the type name is unknown, use the dotted decimal -%% representation. See RFC4514, section 2.3. -format_rdn(#'AttributeTypeAndValue'{type = T, value = V}) -> - FV = escape_rdn_value(format_asn1_value(V)), - Fmts = [{?'id-at-surname' , "SN"}, - {?'id-at-givenName' , "GIVENNAME"}, - {?'id-at-initials' , "INITIALS"}, - {?'id-at-generationQualifier' , "GENERATIONQUALIFIER"}, - {?'id-at-commonName' , "CN"}, - {?'id-at-localityName' , "L"}, - {?'id-at-stateOrProvinceName' , "ST"}, - {?'id-at-organizationName' , "O"}, - {?'id-at-organizationalUnitName' , "OU"}, - {?'id-at-title' , "TITLE"}, - {?'id-at-countryName' , "C"}, - {?'id-at-serialNumber' , "SERIALNUMBER"}, - {?'id-at-pseudonym' , "PSEUDONYM"}, - {?'id-domainComponent' , "DC"}, - {?'id-emailAddress' , "EMAILADDRESS"}, - {?'street-address' , "STREET"}], - case proplists:lookup(T, Fmts) of - {_, Fmt} -> - io_lib:format(Fmt ++ "=~s", [FV]); - none when is_tuple(T) -> - TypeL = [io_lib:format("~w", [X]) || X <- tuple_to_list(T)], - io_lib:format("~s:~s", [string:join(TypeL, "."), FV]); - none -> - io_lib:format("~p:~s", [T, FV]) - end. - -%% Escape a string as per RFC4514. -escape_rdn_value(V) -> - escape_rdn_value(V, start). - -escape_rdn_value([], _) -> - []; -escape_rdn_value([C | S], start) when C =:= $ ; C =:= $# -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value(S, start) -> - escape_rdn_value(S, middle); -escape_rdn_value([$ ], middle) -> - [$\\, $ ]; -escape_rdn_value([C | S], middle) when C =:= $"; C =:= $+; C =:= $,; C =:= $;; - C =:= $<; C =:= $>; C =:= $\\ -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value([C | S], middle) when C < 32 ; C =:= 127 -> - %% only U+0000 needs escaping, but for display purposes it's handy - %% to escape all non-printable chars - lists:flatten(io_lib:format("\\~2.16.0B", [C])) ++ - escape_rdn_value(S, middle); -escape_rdn_value([C | S], middle) -> - [C | escape_rdn_value(S, middle)]. - -%% Get the string representation of an OTPCertificate field. -format_asn1_value({ST, S}) when ST =:= teletexString; ST =:= printableString; - ST =:= universalString; ST =:= utf8String; - ST =:= bmpString -> - if is_binary(S) -> binary_to_list(S); - true -> S - end; -format_asn1_value({utcTime, [Y1, Y2, M1, M2, D1, D2, H1, H2, - Min1, Min2, S1, S2, $Z]}) -> - io_lib:format("20~c~c-~c~c-~c~cT~c~c:~c~c:~c~cZ", - [Y1, Y2, M1, M2, D1, D2, H1, H2, Min1, Min2, S1, S2]); -format_asn1_value(V) -> - io_lib:format("~p", [V]). diff --git a/src/rabbit_sup.erl b/src/rabbit_sup.erl deleted file mode 100644 index 508b127e..00000000 --- a/src/rabbit_sup.erl +++ /dev/null @@ -1,64 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sup). - --behaviour(supervisor). - --export([start_link/0, start_child/1, start_child/2, start_child/3, - start_restartable_child/1, start_restartable_child/2, stop_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Mod) -> - start_child(Mod, []). - -start_child(Mod, Args) -> - start_child(Mod, Mod, Args). - -start_child(ChildId, Mod, Args) -> - {ok, _} = supervisor:start_child(?SERVER, - {ChildId, {Mod, start_link, Args}, - transient, ?MAX_WAIT, worker, [Mod]}), - ok. - -start_restartable_child(Mod) -> - start_restartable_child(Mod, []). - -start_restartable_child(Mod, Args) -> - Name = list_to_atom(atom_to_list(Mod) ++ "_sup"), - {ok, _} = supervisor:start_child( - ?SERVER, - {Name, {rabbit_restartable_sup, start_link, - [Name, {Mod, start_link, Args}]}, - transient, infinity, supervisor, [rabbit_restartable_sup]}), - ok. - -stop_child(ChildId) -> - case supervisor:terminate_child(?SERVER, ChildId) of - ok -> supervisor:delete_child(?SERVER, ChildId); - E -> E - end. - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl deleted file mode 100644 index 0c6250df..00000000 --- a/src/rabbit_tests.erl +++ /dev/null @@ -1,2356 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests). - --compile([export_all]). - --export([all_tests/0, test_parsing/0]). - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). --include_lib("kernel/include/file.hrl"). - --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). --define(CLEANUP_QUEUE_NAME, <<"cleanup-queue">>). - -test_content_prop_roundtrip(Datum, Binary) -> - Types = [element(1, E) || E <- Datum], - Values = [element(2, E) || E <- Datum], - Values = rabbit_binary_parser:parse_properties(Types, Binary), %% assertion - Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion - -all_tests() -> - passed = gm_tests:all_tests(), - application:set_env(rabbit, file_handles_high_watermark, 10, infinity), - ok = file_handle_cache:set_limit(10), - passed = test_file_handle_cache(), - passed = test_backing_queue(), - passed = test_priority_queue(), - passed = test_bpqueue(), - passed = test_pg_local(), - passed = test_unfold(), - passed = test_supervisor_delayed_restart(), - passed = test_parsing(), - passed = test_content_framing(), - passed = test_content_transcoding(), - passed = test_topic_matching(), - passed = test_log_management(), - passed = test_app_management(), - passed = test_log_management_during_startup(), - passed = test_statistics(), - passed = test_option_parser(), - passed = test_cluster_management(), - passed = test_user_management(), - passed = test_server_status(), - passed = maybe_run_cluster_dependent_tests(), - passed = test_configurable_server_properties(), - passed. - -maybe_run_cluster_dependent_tests() -> - SecondaryNode = rabbit_misc:makenode("hare"), - - case net_adm:ping(SecondaryNode) of - pong -> passed = run_cluster_dependent_tests(SecondaryNode); - pang -> io:format("Skipping cluster dependent tests with node ~p~n", - [SecondaryNode]) - end, - passed. - -run_cluster_dependent_tests(SecondaryNode) -> - SecondaryNodeS = atom_to_list(SecondaryNode), - - ok = control_action(stop_app, []), - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - - io:format("Running cluster dependent tests with node ~p~n", [SecondaryNode]), - passed = test_delegates_async(SecondaryNode), - passed = test_delegates_sync(SecondaryNode), - passed = test_queue_cleanup(SecondaryNode), - passed = test_declare_on_dead_queue(SecondaryNode), - - %% we now run the tests remotely, so that code coverage on the - %% local node picks up more of the delegate - Node = node(), - Self = self(), - Remote = spawn(SecondaryNode, - fun () -> Rs = [ test_delegates_async(Node), - test_delegates_sync(Node), - test_queue_cleanup(Node), - test_declare_on_dead_queue(Node) ], - Self ! {self(), Rs} - end), - receive - {Remote, Result} -> - Result = lists:duplicate(length(Result), passed) - after 30000 -> - throw(timeout) - end, - - passed. - -test_priority_queue() -> - - false = priority_queue:is_queue(not_a_queue), - - %% empty Q - Q = priority_queue:new(), - {true, true, 0, [], []} = test_priority_queue(Q), - - %% 1-4 element no-priority Q - true = lists:all(fun (X) -> X =:= passed end, - lists:map(fun test_simple_n_element_queue/1, - lists:seq(1, 4))), - - %% 1-element priority Q - Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), - - %% 2-element same-priority Q - Q2 = priority_queue:in(bar, 1, Q1), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q2), - - %% 2-element different-priority Q - Q3 = priority_queue:in(bar, 2, Q1), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q3), - - %% 1-element negative priority Q - Q4 = priority_queue:in(foo, -1, priority_queue:new()), - {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - - %% merge 2 * 2-element multi-different-priority Qs - Q11 = priority_queue:join(Q6, Q5), - {true, false, 4, [{1, bar}, {0, foo}, {0, foo}, {0, bar}], - [bar, foo, foo, bar]} = test_priority_queue(Q11), - - %% and the other way around - Q12 = priority_queue:join(Q5, Q6), - {true, false, 4, [{1, bar}, {0, foo}, {0, bar}, {0, foo}], - [bar, foo, bar, foo]} = test_priority_queue(Q12), - - %% merge with negative priorities - Q13 = priority_queue:join(Q4, Q5), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q13), - - %% and the other way around - Q14 = priority_queue:join(Q5, Q4), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q14), - - %% joins with empty queues: - Q1 = priority_queue:join(Q, Q1), - Q1 = priority_queue:join(Q1, Q), - - %% insert with priority into non-empty zero-priority queue - Q15 = priority_queue:in(baz, 1, Q5), - {true, false, 3, [{1, baz}, {0, foo}, {0, bar}], [baz, foo, bar]} = - test_priority_queue(Q15), - - passed. - -priority_queue_in_all(Q, L) -> - lists:foldl(fun (X, Acc) -> priority_queue:in(X, Acc) end, Q, L). - -priority_queue_out_all(Q) -> - case priority_queue:out(Q) of - {empty, _} -> []; - {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] - end. - -test_priority_queue(Q) -> - {priority_queue:is_queue(Q), - priority_queue:is_empty(Q), - priority_queue:len(Q), - priority_queue:to_list(Q), - priority_queue_out_all(Q)}. - -test_bpqueue() -> - Q = bpqueue:new(), - true = bpqueue:is_empty(Q), - 0 = bpqueue:len(Q), - [] = bpqueue:to_list(Q), - - Q1 = bpqueue_test(fun bpqueue:in/3, fun bpqueue:out/1, - fun bpqueue:to_list/1, - fun bpqueue:foldl/3, fun bpqueue:map_fold_filter_l/4), - Q2 = bpqueue_test(fun bpqueue:in_r/3, fun bpqueue:out_r/1, - fun (QR) -> lists:reverse( - [{P, lists:reverse(L)} || - {P, L} <- bpqueue:to_list(QR)]) - end, - fun bpqueue:foldr/3, fun bpqueue:map_fold_filter_r/4), - - [{foo, [1, 2]}, {bar, [3]}] = bpqueue:to_list(bpqueue:join(Q, Q1)), - [{bar, [3]}, {foo, [2, 1]}] = bpqueue:to_list(bpqueue:join(Q2, Q)), - [{foo, [1, 2]}, {bar, [3, 3]}, {foo, [2,1]}] = - bpqueue:to_list(bpqueue:join(Q1, Q2)), - - [{foo, [1, 2]}, {bar, [3]}, {foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list(bpqueue:join(Q1, Q1)), - - [{foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list( - bpqueue:from_list( - [{x, []}, {foo, [1]}, {y, []}, {foo, [2]}, {bar, [3]}, {z, []}])), - - [{undefined, [a]}] = bpqueue:to_list(bpqueue:from_list([{undefined, [a]}])), - - {4, [a,b,c,d]} = - bpqueue:foldl( - fun (Prefix, Value, {Prefix, Acc}) -> - {Prefix + 1, [Value | Acc]} - end, - {0, []}, bpqueue:from_list([{0,[d]}, {1,[c]}, {2,[b]}, {3,[a]}])), - - [{bar,3}, {foo,2}, {foo,1}] = - bpqueue:foldr(fun (P, V, I) -> [{P,V} | I] end, [], Q2), - - BPQL = [{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], - BPQ = bpqueue:from_list(BPQL), - - %% no effect - {BPQL, 0} = bpqueue_mffl([none], {none, []}, BPQ), - {BPQL, 0} = bpqueue_mffl([foo,bar], {none, [1]}, BPQ), - {BPQL, 0} = bpqueue_mffl([bar], {none, [3]}, BPQ), - {BPQL, 0} = bpqueue_mffr([bar], {foo, [5]}, BPQ), - - %% process 1 item - {[{foo,[-1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([foo,bar], {foo, [2]}, BPQ), - {[{foo,[1,2,2]}, {bar,[-3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([bar], {bar, [4]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,-7]}], 1} = - bpqueue_mffr([foo,bar], {foo, [6]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4]}, {baz,[-5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffr([bar], {baz, [4]}, BPQ), - - %% change prefix - {[{bar,[-1,-2,-2,-3,-4,-5,-5,-6,-7]}], 9} = - bpqueue_mffl([foo,bar], {bar, []}, BPQ), - {[{bar,[-1,-2,-2,3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {bar, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6]}, {foo,[7]}], 5} = - bpqueue_mffl([foo], {bar, [7]}, BPQ), - {[{foo,[1,2,2,-3,-4]}, {bar,[5]}, {foo,[5,6,7]}], 2} = - bpqueue_mffl([bar], {foo, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6,-7]}], 6} = - bpqueue_mffl([foo], {bar, []}, BPQ), - {[{foo,[1,2,2,-3,-4,-5,5,6,7]}], 3} = - bpqueue_mffl([bar], {foo, []}, BPQ), - - %% edge cases - {[{foo,[-1,-2,-2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {foo, [5]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[-5,-6,-7]}], 3} = - bpqueue_mffr([foo], {foo, [2]}, BPQ), - - passed. - -bpqueue_test(In, Out, List, Fold, MapFoldFilter) -> - Q = bpqueue:new(), - {empty, _Q} = Out(Q), - - ok = Fold(fun (Prefix, Value, ok) -> {error, Prefix, Value} end, ok, Q), - {Q1M, 0} = MapFoldFilter(fun(_P) -> throw(explosion) end, - fun(_V, _N) -> throw(explosion) end, 0, Q), - [] = bpqueue:to_list(Q1M), - - Q1 = In(bar, 3, In(foo, 2, In(foo, 1, Q))), - false = bpqueue:is_empty(Q1), - 3 = bpqueue:len(Q1), - [{foo, [1, 2]}, {bar, [3]}] = List(Q1), - - {{value, foo, 1}, Q3} = Out(Q1), - {{value, foo, 2}, Q4} = Out(Q3), - {{value, bar, 3}, _Q5} = Out(Q4), - - F = fun (QN) -> - MapFoldFilter(fun (foo) -> true; - (_) -> false - end, - fun (2, _Num) -> stop; - (V, Num) -> {bar, -V, V - Num} end, - 0, QN) - end, - {Q6, 0} = F(Q), - [] = bpqueue:to_list(Q6), - {Q7, 1} = F(Q1), - [{bar, [-1]}, {foo, [2]}, {bar, [3]}] = List(Q7), - - Q1. - -bpqueue_mffl(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_l/4, FF1A, FF2A, BPQ). - -bpqueue_mffr(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_r/4, FF1A, FF2A, BPQ). - -bpqueue_mff(Fold, FF1A, FF2A, BPQ) -> - FF1 = fun (Prefixes) -> - fun (P) -> lists:member(P, Prefixes) end - end, - FF2 = fun ({Prefix, Stoppers}) -> - fun (Val, Num) -> - case lists:member(Val, Stoppers) of - true -> stop; - false -> {Prefix, -Val, 1 + Num} - end - end - end, - Queue_to_list = fun ({LHS, RHS}) -> {bpqueue:to_list(LHS), RHS} end, - - Queue_to_list(Fold(FF1(FF1A), FF2(FF2A), 0, BPQ)). - -test_simple_n_element_queue(N) -> - Items = lists:seq(1, N), - Q = priority_queue_in_all(priority_queue:new(), Items), - ToListRes = [{0, X} || X <- Items], - {true, false, N, ToListRes, Items} = test_priority_queue(Q), - passed. - -test_pg_local() -> - [P, Q] = [spawn(fun () -> receive X -> X end end) || _ <- [x, x]], - check_pg_local(ok, [], []), - check_pg_local(pg_local:join(a, P), [P], []), - check_pg_local(pg_local:join(b, P), [P], [P]), - check_pg_local(pg_local:join(a, P), [P, P], [P]), - check_pg_local(pg_local:join(a, Q), [P, P, Q], [P]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(a, P), [P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(b, P), [P, Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - [begin X ! done, - Ref = erlang:monitor(process, X), - receive {'DOWN', Ref, process, X, _Info} -> ok end - end || X <- [P, Q]], - check_pg_local(ok, [], []), - passed. - -check_pg_local(ok, APids, BPids) -> - ok = pg_local:sync(), - [true, true] = [lists:sort(Pids) == lists:sort(pg_local:get_members(Key)) || - {Key, Pids} <- [{a, APids}, {b, BPids}]]. - -test_unfold() -> - {[], test} = rabbit_misc:unfold(fun (_V) -> false end, test), - List = lists:seq(2,20,2), - {List, 0} = rabbit_misc:unfold(fun (0) -> false; - (N) -> {true, N*2, N-1} - end, 10), - passed. - -test_parsing() -> - passed = test_content_properties(), - passed = test_field_values(), - passed. - -test_content_properties() -> - test_content_prop_roundtrip([], <<0, 0>>), - test_content_prop_roundtrip([{bit, true}, {bit, false}, {bit, true}, {bit, false}], - <<16#A0, 0>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {bit, true}, {octet, undefined}, - {bit, true}], - <<16#E8,0,123>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {octet, 123}, {bit, true}], - <<16#F0,0,123,123>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, <<"hi">>}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#F8,0,2,"hi",16#D4,16#31>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, undefined}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#B8,0,16#D4,16#31>>), - test_content_prop_roundtrip([{table, [{<<"a signedint">>, signedint, 12345678}, - {<<"a longstr">>, longstr, <<"yes please">>}, - {<<"a decimal">>, decimal, {123, 12345678}}, - {<<"a timestamp">>, timestamp, 123456789012345}, - {<<"a nested table">>, table, - [{<<"one">>, signedint, 1}, - {<<"two">>, signedint, 2}]}]}], - << - % property-flags - 16#8000:16, - - % property-list: - - % table - 117:32, % table length in bytes - - 11,"a signedint", % name - "I",12345678:32, % type and value - - 9,"a longstr", - "S",10:32,"yes please", - - 9,"a decimal", - "D",123,12345678:32, - - 11,"a timestamp", - "T", 123456789012345:64, - - 14,"a nested table", - "F", - 18:32, - - 3,"one", - "I",1:32, - - 3,"two", - "I",2:32 >>), - case catch rabbit_binary_parser:parse_properties([bit, bit, bit, bit], <<16#A0,0,1>>) of - {'EXIT', content_properties_binary_overflow} -> passed; - V -> exit({got_success_but_expected_failure, V}) - end. - -test_field_values() -> - %% FIXME this does not test inexact numbers (double and float) yet, - %% because they won't pass the equality assertions - test_content_prop_roundtrip( - [{table, [{<<"longstr">>, longstr, <<"Here is a long string">>}, - {<<"signedint">>, signedint, 12345}, - {<<"decimal">>, decimal, {3, 123456}}, - {<<"timestamp">>, timestamp, 109876543209876}, - {<<"table">>, table, [{<<"one">>, signedint, 54321}, - {<<"two">>, longstr, <<"A long string">>}]}, - {<<"byte">>, byte, 255}, - {<<"long">>, long, 1234567890}, - {<<"short">>, short, 655}, - {<<"bool">>, bool, true}, - {<<"binary">>, binary, <<"a binary string">>}, - {<<"void">>, void, undefined}, - {<<"array">>, array, [{signedint, 54321}, - {longstr, <<"A long string">>}]} - - ]}], - << - % property-flags - 16#8000:16, - % table length in bytes - 228:32, - - 7,"longstr", "S", 21:32, "Here is a long string", % = 34 - 9,"signedint", "I", 12345:32/signed, % + 15 = 49 - 7,"decimal", "D", 3, 123456:32, % + 14 = 63 - 9,"timestamp", "T", 109876543209876:64, % + 19 = 82 - 5,"table", "F", 31:32, % length of table % + 11 = 93 - 3,"one", "I", 54321:32, % + 9 = 102 - 3,"two", "S", 13:32, "A long string",% + 22 = 124 - 4,"byte", "b", 255:8, % + 7 = 131 - 4,"long", "l", 1234567890:64, % + 14 = 145 - 5,"short", "s", 655:16, % + 9 = 154 - 4,"bool", "t", 1, % + 7 = 161 - 6,"binary", "x", 15:32, "a binary string", % + 27 = 188 - 4,"void", "V", % + 6 = 194 - 5,"array", "A", 23:32, % + 11 = 205 - "I", 54321:32, % + 5 = 210 - "S", 13:32, "A long string" % + 18 = 228 - >>), - passed. - -%% Test that content frames don't exceed frame-max -test_content_framing(FrameMax, BodyBin) -> - [Header | Frames] = - rabbit_binary_generator:build_simple_content_frames( - 1, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, BodyBin), - rabbit_framing_amqp_0_9_1), - FrameMax, - rabbit_framing_amqp_0_9_1), - %% header is formatted correctly and the size is the total of the - %% fragments - <<_FrameHeader:7/binary, _ClassAndWeight:4/binary, - BodySize:64/unsigned, _Rest/binary>> = list_to_binary(Header), - BodySize = size(BodyBin), - true = lists:all( - fun (ContentFrame) -> - FrameBinary = list_to_binary(ContentFrame), - %% assert - <<_TypeAndChannel:3/binary, - Size:32/unsigned, _Payload:Size/binary, 16#CE>> = - FrameBinary, - size(FrameBinary) =< FrameMax - end, Frames), - passed. - -test_content_framing() -> - %% no content - passed = test_content_framing(4096, <<>>), - %% easily fit in one frame - passed = test_content_framing(4096, <<"Easy">>), - %% exactly one frame (empty frame = 8 bytes) - passed = test_content_framing(11, <<"One">>), - %% more than one frame - passed = test_content_framing(11, <<"More than one frame">>), - passed. - -test_content_transcoding() -> - %% there are no guarantees provided by 'clear' - it's just a hint - ClearDecoded = fun rabbit_binary_parser:clear_decoded_content/1, - ClearEncoded = fun rabbit_binary_generator:clear_encoded_content/1, - EnsureDecoded = - fun (C0) -> - C1 = rabbit_binary_parser:ensure_content_decoded(C0), - true = C1#content.properties =/= none, - C1 - end, - EnsureEncoded = - fun (Protocol) -> - fun (C0) -> - C1 = rabbit_binary_generator:ensure_content_encoded( - C0, Protocol), - true = C1#content.properties_bin =/= none, - C1 - end - end, - %% Beyond the assertions in Ensure*, the only testable guarantee - %% is that the operations should never fail. - %% - %% If we were using quickcheck we'd simply stuff all the above - %% into a generator for sequences of operations. In the absence of - %% quickcheck we pick particularly interesting sequences that: - %% - %% - execute every op twice since they are idempotent - %% - invoke clear_decoded, clear_encoded, decode and transcode - %% with one or both of decoded and encoded content present - [begin - sequence_with_content([Op]), - sequence_with_content([ClearEncoded, Op]), - sequence_with_content([ClearDecoded, Op]) - end || Op <- [ClearDecoded, ClearEncoded, EnsureDecoded, - EnsureEncoded(rabbit_framing_amqp_0_9_1), - EnsureEncoded(rabbit_framing_amqp_0_8)]], - passed. - -sequence_with_content(Sequence) -> - lists:foldl(fun (F, V) -> F(F(V)) end, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, <<>>), - rabbit_framing_amqp_0_9_1), - Sequence). - -test_topic_matching() -> - XName = #resource{virtual_host = <<"/">>, - kind = exchange, - name = <<"test_exchange">>}, - X = #exchange{name = XName, type = topic, durable = false, - auto_delete = false, arguments = []}, - %% create - rabbit_exchange_type_topic:validate(X), - exchange_op_callback(X, create, []), - - %% add some bindings - Bindings = lists:map( - fun ({Key, Q}) -> - #binding{source = XName, - key = list_to_binary(Key), - destination = #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)}} - end, [{"a.b.c", "t1"}, - {"a.*.c", "t2"}, - {"a.#.b", "t3"}, - {"a.b.b.c", "t4"}, - {"#", "t5"}, - {"#.#", "t6"}, - {"#.b", "t7"}, - {"*.*", "t8"}, - {"a.*", "t9"}, - {"*.b.c", "t10"}, - {"a.#", "t11"}, - {"a.#.#", "t12"}, - {"b.b.c", "t13"}, - {"a.b.b", "t14"}, - {"a.b", "t15"}, - {"b.c", "t16"}, - {"", "t17"}, - {"*.*.*", "t18"}, - {"vodka.martini", "t19"}, - {"a.b.c", "t20"}, - {"*.#", "t21"}, - {"#.*.#", "t22"}, - {"*.#.#", "t23"}, - {"#.#.#", "t24"}, - {"*", "t25"}, - {"#.b.#", "t26"}]), - lists:foreach(fun (B) -> exchange_op_callback(X, add_binding, [B]) end, - Bindings), - - %% test some matches - test_topic_expect_match(X, - [{"a.b.c", ["t1", "t2", "t5", "t6", "t10", "t11", "t12", - "t18", "t20", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b", ["t3", "t5", "t6", "t7", "t8", "t9", "t11", - "t12", "t15", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b.b", ["t3", "t5", "t6", "t7", "t11", "t12", "t14", - "t18", "t21", "t22", "t23", "t24", "t26"]}, - {"", ["t5", "t6", "t17", "t24"]}, - {"b.c.c", ["t5", "t6", "t18", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.a.a.a.a", ["t5", "t6", "t11", "t12", "t21", "t22", "t23", - "t24"]}, - {"vodka.gin", ["t5", "t6", "t8", "t21", "t22", "t23", - "t24"]}, - {"vodka.martini", ["t5", "t6", "t8", "t19", "t21", "t22", "t23", - "t24"]}, - {"b.b.c", ["t5", "t6", "t10", "t13", "t18", "t21", "t22", - "t23", "t24", "t26"]}, - {"nothing.here.at.all", ["t5", "t6", "t21", "t22", "t23", "t24"]}, - {"oneword", ["t5", "t6", "t21", "t22", "t23", "t24", - "t25"]}]), - - %% remove some bindings - RemovedBindings = [lists:nth(1, Bindings), lists:nth(5, Bindings), - lists:nth(11, Bindings), lists:nth(19, Bindings), - lists:nth(21, Bindings)], - exchange_op_callback(X, remove_bindings, [RemovedBindings]), - RemainingBindings = ordsets:to_list( - ordsets:subtract(ordsets:from_list(Bindings), - ordsets:from_list(RemovedBindings))), - - %% test some matches - test_topic_expect_match(X, - [{"a.b.c", ["t2", "t6", "t10", "t12", "t18", "t20", "t22", - "t23", "t24", "t26"]}, - {"a.b", ["t3", "t6", "t7", "t8", "t9", "t12", "t15", - "t22", "t23", "t24", "t26"]}, - {"a.b.b", ["t3", "t6", "t7", "t12", "t14", "t18", "t22", - "t23", "t24", "t26"]}, - {"", ["t6", "t17", "t24"]}, - {"b.c.c", ["t6", "t18", "t22", "t23", "t24", "t26"]}, - {"a.a.a.a.a", ["t6", "t12", "t22", "t23", "t24"]}, - {"vodka.gin", ["t6", "t8", "t22", "t23", "t24"]}, - {"vodka.martini", ["t6", "t8", "t22", "t23", "t24"]}, - {"b.b.c", ["t6", "t10", "t13", "t18", "t22", "t23", - "t24", "t26"]}, - {"nothing.here.at.all", ["t6", "t22", "t23", "t24"]}, - {"oneword", ["t6", "t22", "t23", "t24", "t25"]}]), - - %% remove the entire exchange - exchange_op_callback(X, delete, [RemainingBindings]), - %% none should match now - test_topic_expect_match(X, [{"a.b.c", []}, {"b.b.c", []}, {"", []}]), - passed. - -exchange_op_callback(X, Fun, ExtraArgs) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> rabbit_exchange:callback(X, Fun, [true, X] ++ ExtraArgs) end), - rabbit_exchange:callback(X, Fun, [false, X] ++ ExtraArgs). - -test_topic_expect_match(X, List) -> - lists:foreach( - fun ({Key, Expected}) -> - BinKey = list_to_binary(Key), - Res = rabbit_exchange_type_topic:route( - X, #delivery{message = #basic_message{routing_keys = - [BinKey]}}), - ExpectedRes = lists:map( - fun (Q) -> #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)} - end, Expected), - true = (lists:usort(ExpectedRes) =:= lists:usort(Res)) - end, List). - -test_app_management() -> - %% starting, stopping, status - ok = control_action(stop_app, []), - ok = control_action(stop_app, []), - ok = control_action(status, []), - ok = control_action(start_app, []), - ok = control_action(start_app, []), - ok = control_action(status, []), - passed. - -test_log_management() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - Suffix = ".1", - - %% prepare basic logs - file:delete([MainLog, Suffix]), - file:delete([SaslLog, Suffix]), - - %% simple logs reopening - ok = control_action(rotate_logs, []), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% simple log rotation - ok = control_action(rotate_logs, [Suffix]), - [true, true] = non_empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% reopening logs with log rotation performed first - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = file:rename(MainLog, [MainLog, Suffix]), - ok = file:rename(SaslLog, [SaslLog, Suffix]), - ok = test_logs_working([MainLog, Suffix], [SaslLog, Suffix]), - ok = control_action(rotate_logs, []), - ok = test_logs_working(MainLog, SaslLog), - - %% log rotation on empty file - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = control_action(rotate_logs, [Suffix]), - [true, true] = empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - - %% original main log file is not writable - ok = make_files_non_writable([MainLog]), - {error, {cannot_rotate_main_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([MainLog], Suffix), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}]), - - %% original sasl log file is not writable - ok = make_files_non_writable([SaslLog]), - {error, {cannot_rotate_sasl_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([SaslLog], Suffix), - ok = add_log_handlers([{rabbit_sasl_report_file_h, SaslLog}]), - - %% logs with suffix are not writable - ok = control_action(rotate_logs, [Suffix]), - ok = make_files_non_writable([[MainLog, Suffix], [SaslLog, Suffix]]), - ok = control_action(rotate_logs, [Suffix]), - ok = test_logs_working(MainLog, SaslLog), - - %% original log files are not writable - ok = make_files_non_writable([MainLog, SaslLog]), - {error, {{cannot_rotate_main_logs, _}, - {cannot_rotate_sasl_logs, _}}} = control_action(rotate_logs, []), - - %% logging directed to tty (handlers were removed in last test) - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = application:set_env(kernel, error_logger, tty), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% rotate logs when logging is turned off - ok = application:set_env(sasl, sasl_error_logger, false), - ok = application:set_env(kernel, error_logger, silent), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% cleanup - ok = application:set_env(sasl, sasl_error_logger, {file, SaslLog}), - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}, - {rabbit_sasl_report_file_h, SaslLog}]), - passed. - -test_log_management_during_startup() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - - %% start application with simple tty logging - ok = control_action(stop_app, []), - ok = application:set_env(kernel, error_logger, tty), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = add_log_handlers([{error_logger_tty_h, []}, - {sasl_report_tty_h, []}]), - ok = control_action(start_app, []), - - %% start application with tty logging and - %% proper handlers not installed - ok = control_action(stop_app, []), - ok = error_logger:tty(false), - ok = delete_log_handlers([sasl_report_tty_h]), - ok = case catch control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_tty_no_handlers_test}); - {error, {cannot_log_to_tty, _, _}} -> ok - end, - - %% fix sasl logging - ok = application:set_env(sasl, sasl_error_logger, - {file, SaslLog}), - - %% start application with logging to non-existing directory - TmpLog = "/tmp/rabbit-tests/test.log", - delete_file(TmpLog), - ok = application:set_env(kernel, error_logger, {file, TmpLog}), - - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = control_action(start_app, []), - - %% start application with logging to directory with no - %% write permissions - TmpDir = "/tmp/rabbit-tests", - ok = set_permissions(TmpDir, 8#00400), - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_no_write_permission_dir_test}); - {error, {cannot_log_to_file, _, _}} -> ok - end, - - %% start application with logging to a subdirectory which - %% parent directory has no write permissions - TmpTestDir = "/tmp/rabbit-tests/no-permission/test/log", - ok = application:set_env(kernel, error_logger, {file, TmpTestDir}), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotatation_parent_dirs_test}); - {error, {cannot_log_to_file, _, - {error, {cannot_create_parent_dirs, _, eacces}}}} -> ok - end, - ok = set_permissions(TmpDir, 8#00700), - ok = set_permissions(TmpLog, 8#00600), - ok = delete_file(TmpLog), - ok = file:del_dir(TmpDir), - - %% start application with standard error_logger_file_h - %% handler not installed - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% start application with standard sasl handler not installed - %% and rabbit main log handler installed correctly - ok = delete_log_handlers([rabbit_sasl_report_file_h]), - ok = control_action(start_app, []), - passed. - -test_option_parser() -> - % command and arguments should just pass through - ok = check_get_options({["mock_command", "arg1", "arg2"], []}, - [], ["mock_command", "arg1", "arg2"]), - - % get flags - ok = check_get_options( - {["mock_command", "arg1"], [{"-f", true}, {"-f2", false}]}, - [{flag, "-f"}, {flag, "-f2"}], ["mock_command", "arg1", "-f"]), - - % get options - ok = check_get_options( - {["mock_command"], [{"-foo", "bar"}, {"-baz", "notbaz"}]}, - [{option, "-foo", "notfoo"}, {option, "-baz", "notbaz"}], - ["mock_command", "-foo", "bar"]), - - % shuffled and interleaved arguments and options - ok = check_get_options( - {["a1", "a2", "a3"], [{"-o1", "hello"}, {"-o2", "noto2"}, {"-f", true}]}, - [{option, "-o1", "noto1"}, {flag, "-f"}, {option, "-o2", "noto2"}], - ["-f", "a1", "-o1", "hello", "a2", "a3"]), - - passed. - -test_cluster_management() -> - - %% 'cluster' and 'reset' should only work if the app is stopped - {error, _} = control_action(cluster, []), - {error, _} = control_action(reset, []), - {error, _} = control_action(force_reset, []), - - ok = control_action(stop_app, []), - - %% various ways of creating a standalone node - NodeS = atom_to_list(node()), - ClusteringSequence = [[], - [NodeS], - ["invalid@invalid", NodeS], - [NodeS, "invalid@invalid"]], - - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - - %% convert a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% join a non-existing cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - SecondaryNode = rabbit_misc:makenode("hare"), - case net_adm:ping(SecondaryNode) of - pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", - [SecondaryNode]) - end, - - ok = control_action(start_app, []), - passed. - -test_cluster_management2(SecondaryNode) -> - NodeS = atom_to_list(node()), - SecondaryNodeS = atom_to_list(SecondaryNode), - - %% make a disk node - ok = control_action(reset, []), - ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - - %% join cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, [SecondaryNodeS, "invalid1@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% change cluster config while remaining in same cluster - ok = control_action(force_cluster, ["invalid2@invalid", SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join non-existing cluster as a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join empty cluster as a ram node - ok = control_action(cluster, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% turn ram node into disk node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% convert a disk node into a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% turn a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% NB: this will log an inconsistent_database error, which is harmless - %% Turning cover on / off is OK even if we're not in general using cover, - %% it just turns the engine on / off, doesn't actually log anything. - cover:stop([SecondaryNode]), - true = disconnect_node(SecondaryNode), - pong = net_adm:ping(SecondaryNode), - cover:start([SecondaryNode]), - - %% leaving a cluster as a ram node - ok = control_action(reset, []), - %% ...and as a disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(reset, []), - - %% attempt to leave cluster when no other node is alive - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, SecondaryNode, [], []), - ok = control_action(stop_app, []), - {error, {no_running_cluster_nodes, _, _}} = - control_action(reset, []), - - %% leave system clustered, with the secondary node as a ram node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(force_reset, SecondaryNode, [], []), - ok = control_action(cluster, SecondaryNode, [NodeS], []), - ok = control_action(start_app, SecondaryNode, [], []), - - passed. - -test_user_management() -> - - %% lots if stuff that should fail - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(change_password, ["foo", "baz"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - {error, {no_such_user, _}} = - control_action(set_permissions, ["foo", ".*", ".*", ".*"]), - {error, {no_such_user, _}} = - control_action(clear_permissions, ["foo"]), - {error, {no_such_user, _}} = - control_action(list_user_permissions, ["foo"]), - {error, {no_such_vhost, _}} = - control_action(list_permissions, [], [{"-p", "/testhost"}]), - {error, {invalid_regexp, _, _}} = - control_action(set_permissions, ["guest", "+foo", ".*", ".*"]), - - %% user creation - ok = control_action(add_user, ["foo", "bar"]), - {error, {user_already_exists, _}} = - control_action(add_user, ["foo", "bar"]), - ok = control_action(change_password, ["foo", "baz"]), - ok = control_action(set_admin, ["foo"]), - ok = control_action(clear_admin, ["foo"]), - ok = control_action(list_users, []), - - %% vhost creation - ok = control_action(add_vhost, ["/testhost"]), - {error, {vhost_already_exists, _}} = - control_action(add_vhost, ["/testhost"]), - ok = control_action(list_vhosts, []), - - %% user/vhost mapping - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_user_permissions, ["foo"]), - - %% user/vhost unmapping - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - - %% vhost deletion - ok = control_action(delete_vhost, ["/testhost"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - - %% deleting a populated vhost - ok = control_action(add_vhost, ["/testhost"]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(delete_vhost, ["/testhost"]), - - %% user deletion - ok = control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - - passed. - -test_server_status() -> - %% create a few things so there is some useful information to list - Writer = spawn(fun () -> receive shutdown -> ok end end), - {ok, Ch} = rabbit_channel:start_link( - 1, self(), Writer, rabbit_framing_amqp_0_9_1, user(<<"user">>), - <<"/">>, [], self(), fun (_) -> {ok, self()} end), - [Q, Q2] = [Queue || Name <- [<<"foo">>, <<"bar">>], - {new, Queue = #amqqueue{}} <- - [rabbit_amqqueue:declare( - rabbit_misc:r(<<"/">>, queue, Name), - false, false, [], none)]], - - ok = rabbit_amqqueue:basic_consume(Q, true, Ch, undefined, - <<"ctag">>, true, undefined), - - %% list queues - ok = info_action(list_queues, rabbit_amqqueue:info_keys(), true), - - %% list exchanges - ok = info_action(list_exchanges, rabbit_exchange:info_keys(), true), - - %% list bindings - ok = info_action(list_bindings, rabbit_binding:info_keys(), true), - %% misc binding listing APIs - [_|_] = rabbit_binding:list_for_source( - rabbit_misc:r(<<"/">>, exchange, <<"">>)), - [_] = rabbit_binding:list_for_destination( - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - [_] = rabbit_binding:list_for_source_and_destination( - rabbit_misc:r(<<"/">>, exchange, <<"">>), - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - - %% list connections - [#listener{host = H, port = P} | _] = - [L || L = #listener{node = N} <- rabbit_networking:active_listeners(), - N =:= node()], - - {ok, _C} = gen_tcp:connect(H, P, []), - timer:sleep(100), - ok = info_action(list_connections, - rabbit_networking:connection_info_keys(), false), - %% close_connection - [ConnPid] = rabbit_networking:connections(), - ok = control_action(close_connection, [rabbit_misc:pid_to_string(ConnPid), - "go away"]), - - %% list channels - ok = info_action(list_channels, rabbit_channel:info_keys(), false), - - %% list consumers - ok = control_action(list_consumers, []), - - %% cleanup - [{ok, _} = rabbit_amqqueue:delete(QR, false, false) || QR <- [Q, Q2]], - - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_spawn(Receiver) -> - Me = self(), - Writer = spawn(fun () -> Receiver(Me) end), - {ok, Ch} = rabbit_channel:start_link( - 1, Me, Writer, rabbit_framing_amqp_0_9_1, user(<<"guest">>), - <<"/">>, [], self(), fun (_) -> {ok, self()} end), - ok = rabbit_channel:do(Ch, #'channel.open'{}), - receive #'channel.open_ok'{} -> ok - after 1000 -> throw(failed_to_receive_channel_open_ok) - end, - {Writer, Ch}. - -user(Username) -> - #user{username = Username, - is_admin = true, - auth_backend = rabbit_auth_backend_internal, - impl = #internal_user{username = Username, - is_admin = true}}. - -test_statistics_receiver(Pid) -> - receive - shutdown -> - ok; - {send_command, Method} -> - Pid ! Method, - test_statistics_receiver(Pid) - end. - -test_statistics_event_receiver(Pid) -> - receive - Foo -> - Pid ! Foo, - test_statistics_event_receiver(Pid) - end. - -test_statistics_receive_event(Ch, Matcher) -> - rabbit_channel:flush(Ch), - rabbit_channel:emit_stats(Ch), - test_statistics_receive_event1(Ch, Matcher). - -test_statistics_receive_event1(Ch, Matcher) -> - receive #event{type = channel_stats, props = Props} -> - case Matcher(Props) of - true -> Props; - _ -> test_statistics_receive_event1(Ch, Matcher) - end - after 1000 -> throw(failed_to_receive_event) - end. - -test_statistics() -> - application:set_env(rabbit, collect_statistics, fine), - - %% ATM this just tests the queue / exchange stats in channels. That's - %% by far the most complex code though. - - %% Set up a channel and queue - {_Writer, Ch} = test_spawn(fun test_statistics_receiver/1), - rabbit_channel:do(Ch, #'queue.declare'{}), - QName = receive #'queue.declare_ok'{queue = Q0} -> - Q0 - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - {ok, Q} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName)), - QPid = Q#amqqueue.pid, - X = rabbit_misc:r(<<"/">>, exchange, <<"">>), - - rabbit_tests_event_receiver:start(self()), - - %% Check stats empty - Event = test_statistics_receive_event(Ch, fun (_) -> true end), - [] = proplists:get_value(channel_queue_stats, Event), - [] = proplists:get_value(channel_exchange_stats, Event), - [] = proplists:get_value(channel_queue_exchange_stats, Event), - - %% Publish and get a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"">>, - routing_key = QName}, - rabbit_basic:build_content(#'P_basic'{}, <<"">>)), - rabbit_channel:do(Ch, #'basic.get'{queue = QName}), - - %% Check the stats reflect that - Event2 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) > 0 - end), - [{QPid,[{get,1}]}] = proplists:get_value(channel_queue_stats, Event2), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event2), - [{{QPid,X},[{publish,1}]}] = - proplists:get_value(channel_queue_exchange_stats, Event2), - - %% Check the stats remove stuff on queue deletion - rabbit_channel:do(Ch, #'queue.delete'{queue = QName}), - Event3 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) == 0 - end), - - [] = proplists:get_value(channel_queue_stats, Event3), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event3), - [] = proplists:get_value(channel_queue_exchange_stats, Event3), - - rabbit_channel:shutdown(Ch), - rabbit_tests_event_receiver:stop(), - passed. - -test_delegates_async(SecondaryNode) -> - Self = self(), - Sender = fun (Pid) -> Pid ! {invoked, Self} end, - - Responder = make_responder(fun ({invoked, Pid}) -> Pid ! response end), - - ok = delegate:invoke_no_result(spawn(Responder), Sender), - ok = delegate:invoke_no_result(spawn(SecondaryNode, Responder), Sender), - await_response(2), - - LocalPids = spawn_responders(node(), Responder, 10), - RemotePids = spawn_responders(SecondaryNode, Responder, 10), - ok = delegate:invoke_no_result(LocalPids ++ RemotePids, Sender), - await_response(20), - - passed. - -make_responder(FMsg) -> make_responder(FMsg, timeout). -make_responder(FMsg, Throw) -> - fun () -> - receive Msg -> FMsg(Msg) - after 1000 -> throw(Throw) - end - end. - -spawn_responders(Node, Responder, Count) -> - [spawn(Node, Responder) || _ <- lists:seq(1, Count)]. - -await_response(0) -> - ok; -await_response(Count) -> - receive - response -> ok, - await_response(Count - 1) - after 1000 -> - io:format("Async reply not received~n"), - throw(timeout) - end. - -must_exit(Fun) -> - try - Fun(), - throw(exit_not_thrown) - catch - exit:_ -> ok - end. - -test_delegates_sync(SecondaryNode) -> - Sender = fun (Pid) -> gen_server:call(Pid, invoked, infinity) end, - BadSender = fun (_Pid) -> exit(exception) end, - - Responder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end), - - BadResponder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end, bad_responder_died), - - response = delegate:invoke(spawn(Responder), Sender), - response = delegate:invoke(spawn(SecondaryNode, Responder), Sender), - - must_exit(fun () -> delegate:invoke(spawn(BadResponder), BadSender) end), - must_exit(fun () -> - delegate:invoke(spawn(SecondaryNode, BadResponder), BadSender) end), - - LocalGoodPids = spawn_responders(node(), Responder, 2), - RemoteGoodPids = spawn_responders(SecondaryNode, Responder, 2), - LocalBadPids = spawn_responders(node(), BadResponder, 2), - RemoteBadPids = spawn_responders(SecondaryNode, BadResponder, 2), - - {GoodRes, []} = delegate:invoke(LocalGoodPids ++ RemoteGoodPids, Sender), - true = lists:all(fun ({_, response}) -> true end, GoodRes), - GoodResPids = [Pid || {Pid, _} <- GoodRes], - - Good = lists:usort(LocalGoodPids ++ RemoteGoodPids), - Good = lists:usort(GoodResPids), - - {[], BadRes} = delegate:invoke(LocalBadPids ++ RemoteBadPids, BadSender), - true = lists:all(fun ({_, {exit, exception, _}}) -> true end, BadRes), - BadResPids = [Pid || {Pid, _} <- BadRes], - - Bad = lists:usort(LocalBadPids ++ RemoteBadPids), - Bad = lists:usort(BadResPids), - - MagicalPids = [rabbit_misc:string_to_pid(Str) || - Str <- ["", ""]], - {[], BadNodes} = delegate:invoke(MagicalPids, Sender), - true = lists:all( - fun ({_, {exit, {nodedown, nonode@nohost}, _Stack}}) -> true end, - BadNodes), - BadNodesPids = [Pid || {Pid, _} <- BadNodes], - - Magical = lists:usort(MagicalPids), - Magical = lists:usort(BadNodesPids), - - passed. - -test_queue_cleanup_receiver(Pid) -> - receive - shutdown -> - ok; - {send_command, Method} -> - Pid ! Method, - test_queue_cleanup_receiver(Pid) - end. - - -test_queue_cleanup(_SecondaryNode) -> - {_Writer, Ch} = test_spawn(fun test_queue_cleanup_receiver/1), - rabbit_channel:do(Ch, #'queue.declare'{ queue = ?CLEANUP_QUEUE_NAME }), - receive #'queue.declare_ok'{queue = ?CLEANUP_QUEUE_NAME} -> - ok - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - rabbit:stop(), - rabbit:start(), - rabbit_channel:do(Ch, #'queue.declare'{ passive = true, - queue = ?CLEANUP_QUEUE_NAME }), - receive - #'channel.close'{reply_code = 404} -> - ok - after 2000 -> - throw(failed_to_receive_channel_exit) - end, - passed. - -test_declare_on_dead_queue(SecondaryNode) -> - QueueName = rabbit_misc:r(<<"/">>, queue, ?CLEANUP_QUEUE_NAME), - Self = self(), - Pid = spawn(SecondaryNode, - fun () -> - {new, #amqqueue{name = QueueName, pid = QPid}} = - rabbit_amqqueue:declare(QueueName, false, false, [], - none), - exit(QPid, kill), - Self ! {self(), killed, QPid} - end), - receive - {Pid, killed, QPid} -> - {existing, #amqqueue{name = QueueName, - pid = QPid}} = - rabbit_amqqueue:declare(QueueName, false, false, [], none), - false = rabbit_misc:is_process_alive(QPid), - {new, Q} = rabbit_amqqueue:declare(QueueName, false, false, [], - none), - true = rabbit_misc:is_process_alive(Q#amqqueue.pid), - {ok, 0} = rabbit_amqqueue:delete(Q, false, false), - passed - after 2000 -> - throw(failed_to_create_and_kill_queue) - end. - -%--------------------------------------------------------------------- - -control_action(Command, Args) -> - control_action(Command, node(), Args, default_options()). - -control_action(Command, Args, NewOpts) -> - control_action(Command, node(), Args, - expand_options(default_options(), NewOpts)). - -control_action(Command, Node, Args, Opts) -> - case catch rabbit_control:action( - Command, Node, Args, Opts, - fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end) of - ok -> - io:format("done.~n"), - ok; - Other -> - io:format("failed.~n"), - Other - end. - -info_action(Command, Args, CheckVHost) -> - ok = control_action(Command, []), - if CheckVHost -> ok = control_action(Command, []); - true -> ok - end, - ok = control_action(Command, lists:map(fun atom_to_list/1, Args)), - {bad_argument, dummy} = control_action(Command, ["dummy"]), - ok. - -default_options() -> [{"-p", "/"}, {"-q", "false"}]. - -expand_options(As, Bs) -> - lists:foldl(fun({K, _}=A, R) -> - case proplists:is_defined(K, R) of - true -> R; - false -> [A | R] - end - end, Bs, As). - -check_get_options({ExpArgs, ExpOpts}, Defs, Args) -> - {ExpArgs, ResOpts} = rabbit_misc:get_options(Defs, Args), - true = lists:sort(ExpOpts) == lists:sort(ResOpts), % don't care about the order - ok. - -empty_files(Files) -> - [case file:read_file_info(File) of - {ok, FInfo} -> FInfo#file_info.size == 0; - Error -> Error - end || File <- Files]. - -non_empty_files(Files) -> - [case EmptyFile of - {error, Reason} -> {error, Reason}; - _ -> not(EmptyFile) - end || EmptyFile <- empty_files(Files)]. - -test_logs_working(MainLogFile, SaslLogFile) -> - ok = rabbit_log:error("foo bar"), - ok = error_logger:error_report(crash_report, [foo, bar]), - %% give the error loggers some time to catch up - timer:sleep(50), - [true, true] = non_empty_files([MainLogFile, SaslLogFile]), - ok. - -set_permissions(Path, Mode) -> - case file:read_file_info(Path) of - {ok, FInfo} -> file:write_file_info( - Path, - FInfo#file_info{mode=Mode}); - Error -> Error - end. - -clean_logs(Files, Suffix) -> - [begin - ok = delete_file(File), - ok = delete_file([File, Suffix]) - end || File <- Files], - ok. - -delete_file(File) -> - case file:delete(File) of - ok -> ok; - {error, enoent} -> ok; - Error -> Error - end. - -make_files_non_writable(Files) -> - [ok = file:write_file_info(File, #file_info{mode=0}) || - File <- Files], - ok. - -add_log_handlers(Handlers) -> - [ok = error_logger:add_report_handler(Handler, Args) || - {Handler, Args} <- Handlers], - ok. - -delete_log_handlers(Handlers) -> - [[] = error_logger:delete_report_handler(Handler) || - Handler <- Handlers], - ok. - -test_supervisor_delayed_restart() -> - test_sup:test_supervisor_delayed_restart(). - -test_file_handle_cache() -> - %% test copying when there is just one spare handle - Limit = file_handle_cache:get_limit(), - ok = file_handle_cache:set_limit(5), %% 1 or 2 sockets, 2 msg_stores - TmpDir = filename:join(rabbit_mnesia:dir(), "tmp"), - ok = filelib:ensure_dir(filename:join(TmpDir, "nothing")), - Pid = spawn(fun () -> {ok, Hdl} = file_handle_cache:open( - filename:join(TmpDir, "file3"), - [write], []), - receive close -> ok end, - file_handle_cache:delete(Hdl) - end), - Src = filename:join(TmpDir, "file1"), - Dst = filename:join(TmpDir, "file2"), - Content = <<"foo">>, - ok = file:write_file(Src, Content), - {ok, SrcHdl} = file_handle_cache:open(Src, [read], []), - {ok, DstHdl} = file_handle_cache:open(Dst, [write], []), - Size = size(Content), - {ok, Size} = file_handle_cache:copy(SrcHdl, DstHdl, Size), - ok = file_handle_cache:delete(SrcHdl), - file_handle_cache:delete(DstHdl), - Pid ! close, - ok = file_handle_cache:set_limit(Limit), - passed. - -test_backing_queue() -> - case application:get_env(rabbit, backing_queue_module) of - {ok, rabbit_variable_queue} -> - {ok, FileSizeLimit} = - application:get_env(rabbit, msg_store_file_size_limit), - application:set_env(rabbit, msg_store_file_size_limit, 512, - infinity), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - application:set_env(rabbit, queue_index_max_journal_entries, 128, - infinity), - passed = test_msg_store(), - application:set_env(rabbit, msg_store_file_size_limit, - FileSizeLimit, infinity), - passed = test_queue_index(), - passed = test_queue_index_props(), - passed = test_variable_queue(), - passed = test_variable_queue_delete_msg_store_files_callback(), - passed = test_queue_recover(), - application:set_env(rabbit, queue_index_max_journal_entries, - MaxJournal, infinity), - passed; - _ -> - passed - end. - -restart_msg_store_empty() -> - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - undefined, {fun (ok) -> finished end, ok}). - -guid_bin(X) -> - erlang:md5(term_to_binary(X)). - -msg_store_client_init(MsgStore, Ref) -> - rabbit_msg_store:client_init(MsgStore, Ref, undefined, undefined). - -msg_store_contains(Atom, Guids, MSCState) -> - Atom = lists:foldl( - fun (Guid, Atom1) when Atom1 =:= Atom -> - rabbit_msg_store:contains(Guid, MSCState) end, - Atom, Guids). - -msg_store_sync(Guids, MSCState) -> - Ref = make_ref(), - Self = self(), - ok = rabbit_msg_store:sync(Guids, fun () -> Self ! {sync, Ref} end, - MSCState), - receive - {sync, Ref} -> ok - after - 10000 -> - io:format("Sync from msg_store missing for guids ~p~n", [Guids]), - throw(timeout) - end. - -msg_store_read(Guids, MSCState) -> - lists:foldl(fun (Guid, MSCStateM) -> - {{ok, Guid}, MSCStateN} = rabbit_msg_store:read( - Guid, MSCStateM), - MSCStateN - end, MSCState, Guids). - -msg_store_write(Guids, MSCState) -> - ok = lists:foldl( - fun (Guid, ok) -> rabbit_msg_store:write(Guid, Guid, MSCState) end, - ok, Guids). - -msg_store_remove(Guids, MSCState) -> - rabbit_msg_store:remove(Guids, MSCState). - -msg_store_remove(MsgStore, Ref, Guids) -> - with_msg_store_client(MsgStore, Ref, - fun (MSCStateM) -> - ok = msg_store_remove(Guids, MSCStateM), - MSCStateM - end). - -with_msg_store_client(MsgStore, Ref, Fun) -> - rabbit_msg_store:client_terminate( - Fun(msg_store_client_init(MsgStore, Ref))). - -foreach_with_msg_store_client(MsgStore, Ref, Fun, L) -> - rabbit_msg_store:client_terminate( - lists:foldl(fun (Guid, MSCState) -> Fun(Guid, MSCState) end, - msg_store_client_init(MsgStore, Ref), L)). - -test_msg_store() -> - restart_msg_store_empty(), - Self = self(), - Guids = [guid_bin(M) || M <- lists:seq(1,100)], - {Guids1stHalf, Guids2ndHalf} = lists:split(50, Guids), - Ref = rabbit_guid:guid(), - MSCState = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs we're about to publish - false = msg_store_contains(false, Guids, MSCState), - %% publish the first half - ok = msg_store_write(Guids1stHalf, MSCState), - %% sync on the first half - ok = msg_store_sync(Guids1stHalf, MSCState), - %% publish the second half - ok = msg_store_write(Guids2ndHalf, MSCState), - %% sync on the first half again - the msg_store will be dirty, but - %% we won't need the fsync - ok = msg_store_sync(Guids1stHalf, MSCState), - %% check they're all in there - true = msg_store_contains(true, Guids, MSCState), - %% publish the latter half twice so we hit the caching and ref count code - ok = msg_store_write(Guids2ndHalf, MSCState), - %% check they're still all in there - true = msg_store_contains(true, Guids, MSCState), - %% sync on the 2nd half, but do lots of individual syncs to try - %% and cause coalescing to happen - ok = lists:foldl( - fun (Guid, ok) -> rabbit_msg_store:sync( - [Guid], fun () -> Self ! {sync, Guid} end, - MSCState) - end, ok, Guids2ndHalf), - lists:foldl( - fun(Guid, ok) -> - receive - {sync, Guid} -> ok - after - 10000 -> - io:format("Sync from msg_store missing (guid: ~p)~n", - [Guid]), - throw(timeout) - end - end, ok, Guids2ndHalf), - %% it's very likely we're not dirty here, so the 1st half sync - %% should hit a different code path - ok = msg_store_sync(Guids1stHalf, MSCState), - %% read them all - MSCState1 = msg_store_read(Guids, MSCState), - %% read them all again - this will hit the cache, not disk - MSCState2 = msg_store_read(Guids, MSCState1), - %% remove them all - ok = rabbit_msg_store:remove(Guids, MSCState2), - %% check first half doesn't exist - false = msg_store_contains(false, Guids1stHalf, MSCState2), - %% check second half does exist - true = msg_store_contains(true, Guids2ndHalf, MSCState2), - %% read the second half again - MSCState3 = msg_store_read(Guids2ndHalf, MSCState2), - %% release the second half, just for fun (aka code coverage) - ok = rabbit_msg_store:release(Guids2ndHalf, MSCState3), - %% read the second half again, just for fun (aka code coverage) - MSCState4 = msg_store_read(Guids2ndHalf, MSCState3), - ok = rabbit_msg_store:client_terminate(MSCState4), - %% stop and restart, preserving every other msg in 2nd half - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - [], {fun ([]) -> finished; - ([Guid|GuidsTail]) - when length(GuidsTail) rem 2 == 0 -> - {Guid, 1, GuidsTail}; - ([Guid|GuidsTail]) -> - {Guid, 0, GuidsTail} - end, Guids2ndHalf}), - MSCState5 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we have the right msgs left - lists:foldl( - fun (Guid, Bool) -> - not(Bool = rabbit_msg_store:contains(Guid, MSCState5)) - end, false, Guids2ndHalf), - ok = rabbit_msg_store:client_terminate(MSCState5), - %% restart empty - restart_msg_store_empty(), - MSCState6 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs - false = msg_store_contains(false, Guids, MSCState6), - %% publish the first half again - ok = msg_store_write(Guids1stHalf, MSCState6), - %% this should force some sort of sync internally otherwise misread - ok = rabbit_msg_store:client_terminate( - msg_store_read(Guids1stHalf, MSCState6)), - MSCState7 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - ok = rabbit_msg_store:remove(Guids1stHalf, MSCState7), - ok = rabbit_msg_store:client_terminate(MSCState7), - %% restart empty - restart_msg_store_empty(), %% now safe to reuse guids - %% push a lot of msgs in... at least 100 files worth - {ok, FileSize} = application:get_env(rabbit, msg_store_file_size_limit), - PayloadSizeBits = 65536, - BigCount = trunc(100 * FileSize / (PayloadSizeBits div 8)), - GuidsBig = [guid_bin(X) || X <- lists:seq(1, BigCount)], - Payload = << 0:PayloadSizeBits >>, - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - [ok = rabbit_msg_store:write(Guid, Payload, MSCStateM) || - Guid <- GuidsBig], - MSCStateM - end), - %% now read them to ensure we hit the fast client-side reading - ok = foreach_with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (Guid, MSCStateM) -> - {{ok, Payload}, MSCStateN} = rabbit_msg_store:read( - Guid, MSCStateM), - MSCStateN - end, GuidsBig), - %% .., then 3s by 1... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [guid_bin(X) || X <- lists:seq(BigCount, 1, -3)]), - %% .., then remove 3s by 2, from the young end first. This hits - %% GC (under 50% good data left, but no empty files. Must GC). - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [guid_bin(X) || X <- lists:seq(BigCount-1, 1, -3)]), - %% .., then remove 3s by 3, from the young end first. This hits - %% GC... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [guid_bin(X) || X <- lists:seq(BigCount-2, 1, -3)]), - %% ensure empty - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - false = msg_store_contains(false, GuidsBig, MSCStateM), - MSCStateM - end), - %% restart empty - restart_msg_store_empty(), - passed. - -queue_name(Name) -> - rabbit_misc:r(<<"/">>, queue, Name). - -test_queue() -> - queue_name(<<"test">>). - -init_test_queue() -> - TestQueue = test_queue(), - Terms = rabbit_queue_index:shutdown_terms(TestQueue), - PRef = proplists:get_value(persistent_ref, Terms, rabbit_guid:guid()), - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef), - Res = rabbit_queue_index:recover( - TestQueue, Terms, false, - fun (Guid) -> - rabbit_msg_store:contains(Guid, PersistentClient) - end, - fun nop/1), - ok = rabbit_msg_store:client_delete_and_terminate(PersistentClient), - Res. - -restart_test_queue(Qi) -> - _ = rabbit_queue_index:terminate([], Qi), - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([test_queue()]), - init_test_queue(). - -empty_test_queue() -> - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - {0, Qi} = init_test_queue(), - _ = rabbit_queue_index:delete_and_terminate(Qi), - ok. - -with_empty_test_queue(Fun) -> - ok = empty_test_queue(), - {0, Qi} = init_test_queue(), - rabbit_queue_index:delete_and_terminate(Fun(Qi)). - -queue_index_publish(SeqIds, Persistent, Qi) -> - Ref = rabbit_guid:guid(), - MsgStore = case Persistent of - true -> ?PERSISTENT_MSG_STORE; - false -> ?TRANSIENT_MSG_STORE - end, - MSCState = msg_store_client_init(MsgStore, Ref), - {A, B = [{_SeqId, LastGuidWritten} | _]} = - lists:foldl( - fun (SeqId, {QiN, SeqIdsGuidsAcc}) -> - Guid = rabbit_guid:guid(), - QiM = rabbit_queue_index:publish( - Guid, SeqId, #message_properties{}, Persistent, QiN), - ok = rabbit_msg_store:write(Guid, Guid, MSCState), - {QiM, [{SeqId, Guid} | SeqIdsGuidsAcc]} - end, {Qi, []}, SeqIds), - %% do this just to force all of the publishes through to the msg_store: - true = rabbit_msg_store:contains(LastGuidWritten, MSCState), - ok = rabbit_msg_store:client_delete_and_terminate(MSCState), - {A, B}. - -verify_read_with_published(_Delivered, _Persistent, [], _) -> - ok; -verify_read_with_published(Delivered, Persistent, - [{Guid, SeqId, _Props, Persistent, Delivered}|Read], - [{SeqId, Guid}|Published]) -> - verify_read_with_published(Delivered, Persistent, Read, Published); -verify_read_with_published(_Delivered, _Persistent, _Read, _Published) -> - ko. - -test_queue_index_props() -> - with_empty_test_queue( - fun(Qi0) -> - Guid = rabbit_guid:guid(), - Props = #message_properties{expiry=12345}, - Qi1 = rabbit_queue_index:publish(Guid, 1, Props, true, Qi0), - {[{Guid, 1, Props, _, _}], Qi2} = - rabbit_queue_index:read(1, 2, Qi1), - Qi2 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -test_queue_index() -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - TwoSegs = SegmentSize + SegmentSize, - MostOfASegment = trunc(SegmentSize*0.75), - SeqIdsA = lists:seq(0, MostOfASegment-1), - SeqIdsB = lists:seq(MostOfASegment, 2*MostOfASegment), - SeqIdsC = lists:seq(0, trunc(SegmentSize/2)), - SeqIdsD = lists:seq(0, SegmentSize*4), - - with_empty_test_queue( - fun (Qi0) -> - {0, 0, Qi1} = rabbit_queue_index:bounds(Qi0), - {Qi2, SeqIdsGuidsA} = queue_index_publish(SeqIdsA, false, Qi1), - {0, SegmentSize, Qi3} = rabbit_queue_index:bounds(Qi2), - {ReadA, Qi4} = rabbit_queue_index:read(0, SegmentSize, Qi3), - ok = verify_read_with_published(false, false, ReadA, - lists:reverse(SeqIdsGuidsA)), - %% should get length back as 0, as all the msgs were transient - {0, Qi6} = restart_test_queue(Qi4), - {0, 0, Qi7} = rabbit_queue_index:bounds(Qi6), - {Qi8, SeqIdsGuidsB} = queue_index_publish(SeqIdsB, true, Qi7), - {0, TwoSegs, Qi9} = rabbit_queue_index:bounds(Qi8), - {ReadB, Qi10} = rabbit_queue_index:read(0, SegmentSize, Qi9), - ok = verify_read_with_published(false, true, ReadB, - lists:reverse(SeqIdsGuidsB)), - %% should get length back as MostOfASegment - LenB = length(SeqIdsB), - {LenB, Qi12} = restart_test_queue(Qi10), - {0, TwoSegs, Qi13} = rabbit_queue_index:bounds(Qi12), - Qi14 = rabbit_queue_index:deliver(SeqIdsB, Qi13), - {ReadC, Qi15} = rabbit_queue_index:read(0, SegmentSize, Qi14), - ok = verify_read_with_published(true, true, ReadC, - lists:reverse(SeqIdsGuidsB)), - Qi16 = rabbit_queue_index:ack(SeqIdsB, Qi15), - Qi17 = rabbit_queue_index:flush(Qi16), - %% Everything will have gone now because #pubs == #acks - {0, 0, Qi18} = rabbit_queue_index:bounds(Qi17), - %% should get length back as 0 because all persistent - %% msgs have been acked - {0, Qi19} = restart_test_queue(Qi18), - Qi19 - end), - - %% These next bits are just to hit the auto deletion of segment files. - %% First, partials: - %% a) partial pub+del+ack, then move to new segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsC} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsC, Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, _SeqIdsGuidsC1} = queue_index_publish([SegmentSize], - false, Qi4), - Qi5 - end), - - %% b) partial pub+del, then move to new segment, then ack all in old segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsC2} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - {Qi3, _SeqIdsGuidsC3} = queue_index_publish([SegmentSize], - false, Qi2), - Qi4 = rabbit_queue_index:ack(SeqIdsC, Qi3), - rabbit_queue_index:flush(Qi4) - end), - - %% c) just fill up several segments of all pubs, then +dels, then +acks - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsD} = queue_index_publish(SeqIdsD, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsD, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsD, Qi2), - rabbit_queue_index:flush(Qi3) - end), - - %% d) get messages in all states to a segment, then flush, then do - %% the same again, don't flush and read. This will hit all - %% possibilities in combining the segment with the journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, [Seven,Five,Four|_]} = queue_index_publish([0,1,2,4,5,7], - false, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, [Eight,Six|_]} = queue_index_publish([3,6,8], false, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {[], Qi8} = rabbit_queue_index:read(0, 4, Qi7), - {ReadD, Qi9} = rabbit_queue_index:read(4, 7, Qi8), - ok = verify_read_with_published(true, false, ReadD, - [Four, Five, Six]), - {ReadE, Qi10} = rabbit_queue_index:read(7, 9, Qi9), - ok = verify_read_with_published(false, false, ReadE, - [Seven, Eight]), - Qi10 - end), - - %% e) as for (d), but use terminate instead of read, which will - %% exercise journal_minus_segment, not segment_plus_journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsGuidsE} = queue_index_publish([0,1,2,4,5,7], - true, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - {5, Qi4} = restart_test_queue(Qi3), - {Qi5, _SeqIdsGuidsF} = queue_index_publish([3,6,8], true, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {5, Qi8} = restart_test_queue(Qi7), - Qi8 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -variable_queue_publish(IsPersistent, Count, VQ) -> - lists:foldl( - fun (_N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = case IsPersistent of - true -> 2; - false -> 1 - end}, <<>>), - #message_properties{}, VQN) - end, VQ, lists:seq(1, Count)). - -variable_queue_fetch(Count, IsPersistent, IsDelivered, Len, VQ) -> - lists:foldl(fun (N, {VQN, AckTagsAcc}) -> - Rem = Len - N, - {{#basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTagN, Rem}, VQM} = - rabbit_variable_queue:fetch(true, VQN), - {VQM, [AckTagN | AckTagsAcc]} - end, {VQ, []}, lists:seq(1, Count)). - -assert_prop(List, Prop, Value) -> - Value = proplists:get_value(Prop, List). - -assert_props(List, PropVals) -> - [assert_prop(List, Prop, Value) || {Prop, Value} <- PropVals]. - -with_fresh_variable_queue(Fun) -> - ok = empty_test_queue(), - VQ = rabbit_variable_queue:init(test_queue(), true, false, - fun nop/2, fun nop/1), - S0 = rabbit_variable_queue:status(VQ), - assert_props(S0, [{q1, 0}, {q2, 0}, - {delta, {delta, undefined, 0, undefined}}, - {q3, 0}, {q4, 0}, - {len, 0}]), - _ = rabbit_variable_queue:delete_and_terminate(Fun(VQ)), - passed. - -test_variable_queue() -> - [passed = with_fresh_variable_queue(F) || - F <- [fun test_variable_queue_dynamic_duration_change/1, - fun test_variable_queue_partial_segments_delta_thing/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere1/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere2/1, - fun test_dropwhile/1, - fun test_variable_queue_ack_limiting/1]], - passed. - -test_variable_queue_ack_limiting(VQ0) -> - %% start by sending in a bunch of messages - Len = 1024, - VQ1 = variable_queue_publish(false, Len, VQ0), - - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - %% update stats for duration - {_Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - - %% fetch half the messages - {VQ4, _AckTags} = variable_queue_fetch(Len div 2, false, false, Len, VQ3), - - VQ5 = check_variable_queue_status(VQ4, [{len , Len div 2}, - {ram_ack_count, Len div 2}, - {ram_msg_count, Len div 2}]), - - %% ensure all acks go to disk on 0 duration target - VQ6 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ5), - [{len, Len div 2}, - {target_ram_count, 0}, - {ram_msg_count, 0}, - {ram_ack_count, 0}]), - - VQ6. - -test_dropwhile(VQ0) -> - Count = 10, - - %% add messages with sequential expiry - VQ1 = lists:foldl( - fun (N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{}, <<>>), - #message_properties{expiry = N}, VQN) - end, VQ0, lists:seq(1, Count)), - - %% drop the first 5 messages - VQ2 = rabbit_variable_queue:dropwhile( - fun(#message_properties { expiry = Expiry }) -> - Expiry =< 5 - end, VQ1), - - %% fetch five now - VQ3 = lists:foldl(fun (_N, VQN) -> - {{#basic_message{}, _, _, _}, VQM} = - rabbit_variable_queue:fetch(false, VQN), - VQM - end, VQ2, lists:seq(6, Count)), - - %% should be empty now - {empty, VQ4} = rabbit_variable_queue:fetch(false, VQ3), - - VQ4. - -test_variable_queue_dynamic_duration_change(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - - %% start by sending in a couple of segments worth - Len = 2*SegmentSize, - VQ1 = variable_queue_publish(false, Len, VQ0), - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - {Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - VQ7 = lists:foldl( - fun (Duration1, VQ4) -> - {_Duration, VQ5} = rabbit_variable_queue:ram_duration(VQ4), - io:format("~p:~n~p~n", - [Duration1, rabbit_variable_queue:status(VQ5)]), - VQ6 = rabbit_variable_queue:set_ram_duration_target( - Duration1, VQ5), - publish_fetch_and_ack(Churn, Len, VQ6) - end, VQ3, [Duration / 4, 0, Duration / 4, infinity]), - - %% drain - {VQ8, AckTags} = variable_queue_fetch(Len, false, false, Len, VQ7), - VQ9 = rabbit_variable_queue:ack(AckTags, VQ8), - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - - VQ10. - -publish_fetch_and_ack(0, _Len, VQ0) -> - VQ0; -publish_fetch_and_ack(N, Len, VQ0) -> - VQ1 = variable_queue_publish(false, 1, VQ0), - {{_Msg, false, AckTag, Len}, VQ2} = rabbit_variable_queue:fetch(true, VQ1), - VQ3 = rabbit_variable_queue:ack([AckTag], VQ2), - publish_fetch_and_ack(N-1, Len, VQ3). - -test_variable_queue_partial_segments_delta_thing(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - HalfSegment = SegmentSize div 2, - OneAndAHalfSegment = SegmentSize + HalfSegment, - VQ1 = variable_queue_publish(true, OneAndAHalfSegment, VQ0), - {_Duration, VQ2} = rabbit_variable_queue:ram_duration(VQ1), - VQ3 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ2), - %% one segment in q3 as betas, and half a segment in delta - [{delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment}]), - VQ4 = rabbit_variable_queue:set_ram_duration_target(infinity, VQ3), - VQ5 = check_variable_queue_status( - variable_queue_publish(true, 1, VQ4), - %% one alpha, but it's in the same segment as the deltas - [{q1, 1}, - {delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment + 1}]), - {VQ6, AckTags} = variable_queue_fetch(SegmentSize, true, false, - SegmentSize + HalfSegment + 1, VQ5), - VQ7 = check_variable_queue_status( - VQ6, - %% the half segment should now be in q3 as betas - [{q1, 1}, - {delta, {delta, undefined, 0, undefined}}, - {q3, HalfSegment}, - {len, HalfSegment + 1}]), - {VQ8, AckTags1} = variable_queue_fetch(HalfSegment + 1, true, false, - HalfSegment + 1, VQ7), - VQ9 = rabbit_variable_queue:ack(AckTags ++ AckTags1, VQ8), - %% should be empty now - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - VQ10. - -check_variable_queue_status(VQ0, Props) -> - VQ1 = variable_queue_wait_for_shuffling_end(VQ0), - S = rabbit_variable_queue:status(VQ1), - io:format("~p~n", [S]), - assert_props(S, Props), - VQ1. - -variable_queue_wait_for_shuffling_end(VQ) -> - case rabbit_variable_queue:needs_idle_timeout(VQ) of - true -> variable_queue_wait_for_shuffling_end( - rabbit_variable_queue:idle_timeout(VQ)); - false -> VQ - end. - -test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - VQ1 = variable_queue_publish(true, Count, VQ0), - VQ2 = variable_queue_publish(false, Count, VQ1), - VQ3 = rabbit_variable_queue:set_ram_duration_target(0, VQ2), - {VQ4, _AckTags} = variable_queue_fetch(Count, true, false, - Count + Count, VQ3), - {VQ5, _AckTags1} = variable_queue_fetch(Count, false, false, - Count, VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = rabbit_variable_queue:init(test_queue(), true, true, - fun nop/2, fun nop/1), - {{_Msg1, true, _AckTag1, Count1}, VQ8} = - rabbit_variable_queue:fetch(true, VQ7), - VQ9 = variable_queue_publish(false, 1, VQ8), - VQ10 = rabbit_variable_queue:set_ram_duration_target(0, VQ9), - {VQ11, _AckTags2} = variable_queue_fetch(Count1, true, true, Count, VQ10), - {VQ12, _AckTags3} = variable_queue_fetch(1, false, false, 1, VQ11), - VQ12. - -test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ0) -> - VQ1 = rabbit_variable_queue:set_ram_duration_target(0, VQ0), - VQ2 = variable_queue_publish(false, 4, VQ1), - {VQ3, AckTags} = variable_queue_fetch(2, false, false, 4, VQ2), - VQ4 = rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, VQ3), - VQ5 = rabbit_variable_queue:idle_timeout(VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = rabbit_variable_queue:init(test_queue(), true, true, - fun nop/2, fun nop/1), - {empty, VQ8} = rabbit_variable_queue:fetch(false, VQ7), - VQ8. - -test_queue_recover() -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - TxID = rabbit_guid:guid(), - {new, #amqqueue { pid = QPid, name = QName }} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - [begin - Msg = rabbit_basic:message(rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, <<>>), - Delivery = #delivery{mandatory = false, immediate = false, txn = TxID, - sender = self(), message = Msg}, - true = rabbit_amqqueue:deliver(QPid, Delivery) - end || _ <- lists:seq(1, Count)], - rabbit_amqqueue:commit_all([QPid], TxID, self()), - exit(QPid, kill), - MRef = erlang:monitor(process, QPid), - receive {'DOWN', MRef, process, QPid, _Info} -> ok - after 10000 -> exit(timeout_waiting_for_queue_death) - end, - rabbit_amqqueue:stop(), - ok = rabbit_amqqueue:start(), - rabbit_amqqueue:with_or_die( - QName, - fun (Q1 = #amqqueue { pid = QPid1 }) -> - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid1, _AckTag, true, _Msg}} = - rabbit_amqqueue:basic_get(Q1, self(), false), - exit(QPid1, shutdown), - VQ1 = rabbit_variable_queue:init(QName, true, true, - fun nop/2, fun nop/1), - {{_Msg1, true, _AckTag1, CountMinusOne}, VQ2} = - rabbit_variable_queue:fetch(true, VQ1), - _VQ3 = rabbit_variable_queue:delete_and_terminate(VQ2), - rabbit_amqqueue:internal_delete(QName) - end), - passed. - -test_variable_queue_delete_msg_store_files_callback() -> - ok = restart_msg_store_empty(), - {new, #amqqueue { pid = QPid, name = QName } = Q} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - TxID = rabbit_guid:guid(), - Payload = <<0:8388608>>, %% 1MB - Count = 30, - [begin - Msg = rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, Payload), - Delivery = #delivery{mandatory = false, immediate = false, txn = TxID, - sender = self(), message = Msg}, - true = rabbit_amqqueue:deliver(QPid, Delivery) - end || _ <- lists:seq(1, Count)], - rabbit_amqqueue:commit_all([QPid], TxID, self()), - rabbit_amqqueue:set_ram_duration_target(QPid, 0), - - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid, _AckTag, false, _Msg}} = - rabbit_amqqueue:basic_get(Q, self(), true), - {ok, CountMinusOne} = rabbit_amqqueue:purge(Q), - - %% give the queue a second to receive the close_fds callback msg - timer:sleep(1000), - - rabbit_amqqueue:delete(Q, false, false), - passed. - -test_configurable_server_properties() -> - %% List of the names of the built-in properties do we expect to find - BuiltInPropNames = [<<"product">>, <<"version">>, <<"platform">>, - <<"copyright">>, <<"information">>], - - Protocol = rabbit_framing_amqp_0_9_1, - - %% Verify that the built-in properties are initially present - ActualPropNames = [Key || {Key, longstr, _} <- - rabbit_reader:server_properties(Protocol)], - true = lists:all(fun (X) -> lists:member(X, ActualPropNames) end, - BuiltInPropNames), - - %% Get the initial server properties configured in the environment - {ok, ServerProperties} = application:get_env(rabbit, server_properties), - - %% Helper functions - ConsProp = fun (X) -> application:set_env(rabbit, - server_properties, - [X | ServerProperties]) end, - IsPropPresent = - fun (X) -> - lists:member(X, rabbit_reader:server_properties(Protocol)) - end, - - %% Add a wholly new property of the simplified {KeyAtom, StringValue} form - NewSimplifiedProperty = {NewHareKey, NewHareVal} = {hare, "soup"}, - ConsProp(NewSimplifiedProperty), - %% Do we find hare soup, appropriately formatted in the generated properties? - ExpectedHareImage = {list_to_binary(atom_to_list(NewHareKey)), - longstr, - list_to_binary(NewHareVal)}, - true = IsPropPresent(ExpectedHareImage), - - %% Add a wholly new property of the {BinaryKey, Type, Value} form - %% and check for it - NewProperty = {<<"new-bin-key">>, signedint, -1}, - ConsProp(NewProperty), - %% Do we find the new property? - true = IsPropPresent(NewProperty), - - %% Add a property that clobbers a built-in, and verify correct clobbering - {NewVerKey, NewVerVal} = NewVersion = {version, "X.Y.Z."}, - {BinNewVerKey, BinNewVerVal} = {list_to_binary(atom_to_list(NewVerKey)), - list_to_binary(NewVerVal)}, - ConsProp(NewVersion), - ClobberedServerProps = rabbit_reader:server_properties(Protocol), - %% Is the clobbering insert present? - true = IsPropPresent({BinNewVerKey, longstr, BinNewVerVal}), - %% Is the clobbering insert the only thing with the clobbering key? - [{BinNewVerKey, longstr, BinNewVerVal}] = - [E || {K, longstr, _V} = E <- ClobberedServerProps, K =:= BinNewVerKey], - - application:set_env(rabbit, server_properties, ServerProperties), - passed. - -nop(_) -> ok. -nop(_, _) -> ok. diff --git a/src/rabbit_tests_event_receiver.erl b/src/rabbit_tests_event_receiver.erl deleted file mode 100644 index 12c43faf..00000000 --- a/src/rabbit_tests_event_receiver.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests_event_receiver). - --export([start/1, stop/0]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - -start(Pid) -> - gen_event:add_handler(rabbit_event, ?MODULE, [Pid]). - -stop() -> - gen_event:delete_handler(rabbit_event, ?MODULE, []). - -%%---------------------------------------------------------------------------- - -init([Pid]) -> - {ok, Pid}. - -handle_call(_Request, Pid) -> - {ok, not_understood, Pid}. - -handle_event(Event, Pid) -> - Pid ! Event, - {ok, Pid}. - -handle_info(_Info, Pid) -> - {ok, Pid}. - -terminate(_Arg, _Pid) -> - ok. - -code_change(_OldVsn, Pid, _Extra) -> - {ok, Pid}. - -%%---------------------------------------------------------------------------- diff --git a/src/rabbit_types.erl b/src/rabbit_types.erl deleted file mode 100644 index ab2300c0..00000000 --- a/src/rabbit_types.erl +++ /dev/null @@ -1,160 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_types). - --include("rabbit.hrl"). - --ifdef(use_specs). - --export_type([txn/0, maybe/1, info/0, infos/0, info_key/0, info_keys/0, - message/0, basic_message/0, - delivery/0, content/0, decoded_content/0, undecoded_content/0, - unencoded_content/0, encoded_content/0, message_properties/0, - vhost/0, ctag/0, amqp_error/0, r/1, r2/2, r3/3, listener/0, - binding/0, binding_source/0, binding_destination/0, - amqqueue/0, exchange/0, - connection/0, protocol/0, user/0, internal_user/0, - username/0, password/0, password_hash/0, ok/1, error/1, - ok_or_error/1, ok_or_error2/2, ok_pid_or_error/0, channel_exit/0, - connection_exit/0]). - --type(channel_exit() :: no_return()). --type(connection_exit() :: no_return()). - --type(maybe(T) :: T | 'none'). --type(vhost() :: binary()). --type(ctag() :: binary()). - -%% TODO: make this more precise by tying specific class_ids to -%% specific properties --type(undecoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: 'none', - properties_bin :: binary(), - payload_fragments_rev :: [binary()]} | - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: 'none', - payload_fragments_rev :: [binary()]}). --type(unencoded_content() :: undecoded_content()). --type(decoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: maybe(binary()), - payload_fragments_rev :: [binary()]}). --type(encoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: maybe(rabbit_framing:amqp_property_record()), - properties_bin :: binary(), - payload_fragments_rev :: [binary()]}). --type(content() :: undecoded_content() | decoded_content()). --type(basic_message() :: - #basic_message{exchange_name :: rabbit_exchange:name(), - routing_keys :: [rabbit_router:routing_key()], - content :: content(), - guid :: rabbit_guid:guid(), - is_persistent :: boolean()}). --type(message() :: basic_message()). --type(delivery() :: - #delivery{mandatory :: boolean(), - immediate :: boolean(), - txn :: maybe(txn()), - sender :: pid(), - message :: message()}). --type(message_properties() :: - #message_properties{expiry :: pos_integer() | 'undefined', - needs_confirming :: boolean()}). - -%% this is really an abstract type, but dialyzer does not support them --type(txn() :: rabbit_guid:guid()). - --type(info_key() :: atom()). --type(info_keys() :: [info_key()]). - --type(info() :: {info_key(), any()}). --type(infos() :: [info()]). - --type(amqp_error() :: - #amqp_error{name :: rabbit_framing:amqp_exception(), - explanation :: string(), - method :: rabbit_framing:amqp_method_name()}). - --type(r(Kind) :: - r2(vhost(), Kind)). --type(r2(VirtualHost, Kind) :: - r3(VirtualHost, Kind, rabbit_misc:resource_name())). --type(r3(VirtualHost, Kind, Name) :: - #resource{virtual_host :: VirtualHost, - kind :: Kind, - name :: Name}). - --type(listener() :: - #listener{node :: node(), - protocol :: atom(), - host :: rabbit_networking:hostname(), - port :: rabbit_networking:ip_port()}). - --type(binding_source() :: rabbit_exchange:name()). --type(binding_destination() :: rabbit_amqqueue:name() | rabbit_exchange:name()). - --type(binding() :: - #binding{source :: rabbit_exchange:name(), - destination :: binding_destination(), - key :: rabbit_binding:key(), - args :: rabbit_framing:amqp_table()}). - --type(amqqueue() :: - #amqqueue{name :: rabbit_amqqueue:name(), - durable :: boolean(), - auto_delete :: boolean(), - exclusive_owner :: rabbit_types:maybe(pid()), - arguments :: rabbit_framing:amqp_table(), - pid :: rabbit_types:maybe(pid())}). - --type(exchange() :: - #exchange{name :: rabbit_exchange:name(), - type :: rabbit_exchange:type(), - durable :: boolean(), - auto_delete :: boolean(), - arguments :: rabbit_framing:amqp_table()}). - --type(connection() :: pid()). - --type(protocol() :: rabbit_framing:protocol()). - --type(user() :: - #user{username :: username(), - is_admin :: boolean(), - auth_backend :: atom(), - impl :: any()}). - --type(internal_user() :: - #internal_user{username :: username(), - password_hash :: password_hash(), - is_admin :: boolean()}). - --type(username() :: binary()). --type(password() :: binary()). --type(password_hash() :: binary()). - --type(ok(A) :: {'ok', A}). --type(error(A) :: {'error', A}). --type(ok_or_error(A) :: 'ok' | error(A)). --type(ok_or_error2(A, B) :: ok(A) | error(B)). --type(ok_pid_or_error() :: ok_or_error2(pid(), any())). - --endif. % use_specs diff --git a/src/rabbit_upgrade.erl b/src/rabbit_upgrade.erl deleted file mode 100644 index 89acc10c..00000000 --- a/src/rabbit_upgrade.erl +++ /dev/null @@ -1,168 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade). - --export([maybe_upgrade/0, read_version/0, write_version/0, desired_version/0]). - --include("rabbit.hrl"). - --define(VERSION_FILENAME, "schema_version"). --define(LOCK_FILENAME, "schema_upgrade_lock"). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --type(step() :: atom()). --type(version() :: [step()]). - --spec(maybe_upgrade/0 :: () -> 'ok' | 'version_not_available'). --spec(read_version/0 :: () -> rabbit_types:ok_or_error2(version(), any())). --spec(write_version/0 :: () -> 'ok'). --spec(desired_version/0 :: () -> version()). - --endif. - -%% ------------------------------------------------------------------- - -%% Try to upgrade the schema. If no information on the existing schema -%% could be found, do nothing. rabbit_mnesia:check_schema_integrity() -%% will catch the problem. -maybe_upgrade() -> - case read_version() of - {ok, CurrentHeads} -> - with_upgrade_graph( - fun (G) -> - case unknown_heads(CurrentHeads, G) of - [] -> case upgrades_to_apply(CurrentHeads, G) of - [] -> ok; - Upgrades -> apply_upgrades(Upgrades) - end; - Unknown -> throw({error, - {future_upgrades_found, Unknown}}) - end - end); - {error, enoent} -> - version_not_available - end. - -read_version() -> - case rabbit_misc:read_term_file(schema_filename()) of - {ok, [Heads]} -> {ok, Heads}; - {error, _} = Err -> Err - end. - -write_version() -> - ok = rabbit_misc:write_term_file(schema_filename(), [desired_version()]), - ok. - -desired_version() -> - with_upgrade_graph(fun (G) -> heads(G) end). - -%% ------------------------------------------------------------------- - -with_upgrade_graph(Fun) -> - case rabbit_misc:build_acyclic_graph( - fun vertices/2, fun edges/2, - rabbit_misc:all_module_attributes(rabbit_upgrade)) of - {ok, G} -> try - Fun(G) - after - true = digraph:delete(G) - end; - {error, {vertex, duplicate, StepName}} -> - throw({error, {duplicate_upgrade_step, StepName}}); - {error, {edge, {bad_vertex, StepName}, _From, _To}} -> - throw({error, {dependency_on_unknown_upgrade_step, StepName}}); - {error, {edge, {bad_edge, StepNames}, _From, _To}} -> - throw({error, {cycle_in_upgrade_steps, StepNames}}) - end. - -vertices(Module, Steps) -> - [{StepName, {Module, StepName}} || {StepName, _Reqs} <- Steps]. - -edges(_Module, Steps) -> - [{Require, StepName} || {StepName, Requires} <- Steps, Require <- Requires]. - -unknown_heads(Heads, G) -> - [H || H <- Heads, digraph:vertex(G, H) =:= false]. - -upgrades_to_apply(Heads, G) -> - %% Take all the vertices which can reach the known heads. That's - %% everything we've already applied. Subtract that from all - %% vertices: that's what we have to apply. - Unsorted = sets:to_list( - sets:subtract( - sets:from_list(digraph:vertices(G)), - sets:from_list(digraph_utils:reaching(Heads, G)))), - %% Form a subgraph from that list and find a topological ordering - %% so we can invoke them in order. - [element(2, digraph:vertex(G, StepName)) || - StepName <- digraph_utils:topsort(digraph_utils:subgraph(G, Unsorted))]. - -heads(G) -> - lists:sort([V || V <- digraph:vertices(G), digraph:out_degree(G, V) =:= 0]). - -%% ------------------------------------------------------------------- - -apply_upgrades(Upgrades) -> - LockFile = lock_filename(dir()), - case rabbit_misc:lock_file(LockFile) of - ok -> - BackupDir = dir() ++ "-upgrade-backup", - info("Upgrades: ~w to apply~n", [length(Upgrades)]), - case rabbit_mnesia:copy_db(BackupDir) of - ok -> - %% We need to make the backup after creating the - %% lock file so that it protects us from trying to - %% overwrite the backup. Unfortunately this means - %% the lock file exists in the backup too, which - %% is not intuitive. Remove it. - ok = file:delete(lock_filename(BackupDir)), - info("Upgrades: Mnesia dir backed up to ~p~n", [BackupDir]), - [apply_upgrade(Upgrade) || Upgrade <- Upgrades], - info("Upgrades: All upgrades applied successfully~n", []), - ok = write_version(), - ok = rabbit_misc:recursive_delete([BackupDir]), - info("Upgrades: Mnesia backup removed~n", []), - ok = file:delete(LockFile); - {error, E} -> - %% If we can't backup, the upgrade hasn't started - %% hence we don't need the lockfile since the real - %% mnesia dir is the good one. - ok = file:delete(LockFile), - throw({could_not_back_up_mnesia_dir, E}) - end; - {error, eexist} -> - throw({error, previous_upgrade_failed}) - end. - -apply_upgrade({M, F}) -> - info("Upgrades: Applying ~w:~w~n", [M, F]), - ok = apply(M, F, []). - -%% ------------------------------------------------------------------- - -dir() -> rabbit_mnesia:dir(). - -schema_filename() -> filename:join(dir(), ?VERSION_FILENAME). - -lock_filename(Dir) -> filename:join(Dir, ?LOCK_FILENAME). - -%% NB: we cannot use rabbit_log here since it may not have been -%% started yet -info(Msg, Args) -> error_logger:info_msg(Msg, Args). diff --git a/src/rabbit_upgrade_functions.erl b/src/rabbit_upgrade_functions.erl deleted file mode 100644 index b9dbe418..00000000 --- a/src/rabbit_upgrade_functions.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade_functions). - --include("rabbit.hrl"). - --compile([export_all]). - --rabbit_upgrade({remove_user_scope, []}). --rabbit_upgrade({hash_passwords, []}). --rabbit_upgrade({add_ip_to_listener, []}). --rabbit_upgrade({internal_exchanges, []}). --rabbit_upgrade({user_to_internal_user, [hash_passwords]}). --rabbit_upgrade({topic_trie, []}). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --spec(remove_user_scope/0 :: () -> 'ok'). --spec(hash_passwords/0 :: () -> 'ok'). --spec(add_ip_to_listener/0 :: () -> 'ok'). --spec(internal_exchanges/0 :: () -> 'ok'). --spec(user_to_internal_user/0 :: () -> 'ok'). --spec(topic_trie/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -%% It's a bad idea to use records or record_info here, even for the -%% destination form. Because in the future, the destination form of -%% your current transform may not match the record any more, and it -%% would be messy to have to go back and fix old transforms at that -%% point. - -remove_user_scope() -> - transform( - rabbit_user_permission, - fun ({user_permission, UV, {permission, _Scope, Conf, Write, Read}}) -> - {user_permission, UV, {permission, Conf, Write, Read}} - end, - [user_vhost, permission]). - -hash_passwords() -> - transform( - rabbit_user, - fun ({user, Username, Password, IsAdmin}) -> - Hash = rabbit_auth_backend_internal:hash_password(Password), - {user, Username, Hash, IsAdmin} - end, - [username, password_hash, is_admin]). - -add_ip_to_listener() -> - transform( - rabbit_listener, - fun ({listener, Node, Protocol, Host, Port}) -> - {listener, Node, Protocol, Host, {0,0,0,0}, Port} - end, - [node, protocol, host, ip_address, port]). - -internal_exchanges() -> - Tables = [rabbit_exchange, rabbit_durable_exchange], - AddInternalFun = - fun ({exchange, Name, Type, Durable, AutoDelete, Args}) -> - {exchange, Name, Type, Durable, AutoDelete, false, Args} - end, - [ ok = transform(T, - AddInternalFun, - [name, type, durable, auto_delete, internal, arguments]) - || T <- Tables ], - ok. - -user_to_internal_user() -> - transform( - rabbit_user, - fun({user, Username, PasswordHash, IsAdmin}) -> - {internal_user, Username, PasswordHash, IsAdmin} - end, - [username, password_hash, is_admin], internal_user). - -topic_trie() -> - create(rabbit_topic_trie_edge, [{record_name, topic_trie_edge}, - {attributes, [trie_edge, node_id]}, - {type, ordered_set}]), - create(rabbit_topic_trie_binding, [{record_name, topic_trie_binding}, - {attributes, [trie_binding, value]}, - {type, ordered_set}]). - -%%-------------------------------------------------------------------- - -transform(TableName, Fun, FieldList) -> - rabbit_mnesia:wait_for_tables([TableName]), - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList), - ok. - -transform(TableName, Fun, FieldList, NewRecordName) -> - rabbit_mnesia:wait_for_tables([TableName]), - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList, - NewRecordName), - ok. - -create(Tab, TabDef) -> - {atomic, ok} = mnesia:create_table(Tab, TabDef), - ok. diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl deleted file mode 100644 index d1307b85..00000000 --- a/src/rabbit_variable_queue.erl +++ /dev/null @@ -1,1831 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_variable_queue). - --export([init/3, terminate/1, delete_and_terminate/1, - purge/1, publish/3, publish_delivered/4, fetch/2, ack/2, - tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, - requeue/3, len/1, is_empty/1, dropwhile/2, - set_ram_duration_target/2, ram_duration/1, - needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, - status/1, multiple_routing_keys/0]). - --export([start/1, stop/0]). - -%% exported for testing only --export([start_msg_store/2, stop_msg_store/0, init/5]). - -%%---------------------------------------------------------------------------- -%% Definitions: - -%% alpha: this is a message where both the message itself, and its -%% position within the queue are held in RAM -%% -%% beta: this is a message where the message itself is only held on -%% disk, but its position within the queue is held in RAM. -%% -%% gamma: this is a message where the message itself is only held on -%% disk, but its position is both in RAM and on disk. -%% -%% delta: this is a collection of messages, represented by a single -%% term, where the messages and their position are only held on -%% disk. -%% -%% Note that for persistent messages, the message and its position -%% within the queue are always held on disk, *in addition* to being in -%% one of the above classifications. -%% -%% Also note that within this code, the term gamma never -%% appears. Instead, gammas are defined by betas who have had their -%% queue position recorded on disk. -%% -%% In general, messages move q1 -> q2 -> delta -> q3 -> q4, though -%% many of these steps are frequently skipped. q1 and q4 only hold -%% alphas, q2 and q3 hold both betas and gammas (as queues of queues, -%% using the bpqueue module where the block prefix determines whether -%% they're betas or gammas). When a message arrives, its -%% classification is determined. It is then added to the rightmost -%% appropriate queue. -%% -%% If a new message is determined to be a beta or gamma, q1 is -%% empty. If a new message is determined to be a delta, q1 and q2 are -%% empty (and actually q4 too). -%% -%% When removing messages from a queue, if q4 is empty then q3 is read -%% directly. If q3 becomes empty then the next segment's worth of -%% messages from delta are read into q3, reducing the size of -%% delta. If the queue is non empty, either q4 or q3 contain -%% entries. It is never permitted for delta to hold all the messages -%% in the queue. -%% -%% The duration indicated to us by the memory_monitor is used to -%% calculate, given our current ingress and egress rates, how many -%% messages we should hold in RAM. We track the ingress and egress -%% rates for both messages and pending acks and rates for both are -%% considered when calculating the number of messages to hold in -%% RAM. When we need to push alphas to betas or betas to gammas, we -%% favour writing out messages that are further from the head of the -%% queue. This minimises writes to disk, as the messages closer to the -%% tail of the queue stay in the queue for longer, thus do not need to -%% be replaced as quickly by sending other messages to disk. -%% -%% Whilst messages are pushed to disk and forgotten from RAM as soon -%% as requested by a new setting of the queue RAM duration, the -%% inverse is not true: we only load messages back into RAM as -%% demanded as the queue is read from. Thus only publishes to the -%% queue will take up available spare capacity. -%% -%% When we report our duration to the memory monitor, we calculate -%% average ingress and egress rates over the last two samples, and -%% then calculate our duration based on the sum of the ingress and -%% egress rates. More than two samples could be used, but it's a -%% balance between responding quickly enough to changes in -%% producers/consumers versus ignoring temporary blips. The problem -%% with temporary blips is that with just a few queues, they can have -%% substantial impact on the calculation of the average duration and -%% hence cause unnecessary I/O. Another alternative is to increase the -%% amqqueue_process:RAM_DURATION_UPDATE_PERIOD to beyond 5 -%% seconds. However, that then runs the risk of being too slow to -%% inform the memory monitor of changes. Thus a 5 second interval, -%% plus a rolling average over the last two samples seems to work -%% well in practice. -%% -%% The sum of the ingress and egress rates is used because the egress -%% rate alone is not sufficient. Adding in the ingress rate means that -%% queues which are being flooded by messages are given more memory, -%% resulting in them being able to process the messages faster (by -%% doing less I/O, or at least deferring it) and thus helping keep -%% their mailboxes empty and thus the queue as a whole is more -%% responsive. If such a queue also has fast but previously idle -%% consumers, the consumer can then start to be driven as fast as it -%% can go, whereas if only egress rate was being used, the incoming -%% messages may have to be written to disk and then read back in, -%% resulting in the hard disk being a bottleneck in driving the -%% consumers. Generally, we want to give Rabbit every chance of -%% getting rid of messages as fast as possible and remaining -%% responsive, and using only the egress rate impacts that goal. -%% -%% If a queue is full of transient messages, then the transition from -%% betas to deltas will be potentially very expensive as millions of -%% entries must be written to disk by the queue_index module. This can -%% badly stall the queue. In order to avoid this, the proportion of -%% gammas / (betas+gammas) must not be lower than (betas+gammas) / -%% (alphas+betas+gammas). As the queue grows or available memory -%% shrinks, the latter ratio increases, requiring the conversion of -%% more gammas to betas in order to maintain the invariant. At the -%% point at which betas and gammas must be converted to deltas, there -%% should be very few betas remaining, thus the transition is fast (no -%% work needs to be done for the gamma -> delta transition). -%% -%% The conversion of betas to gammas is done in batches of exactly -%% ?IO_BATCH_SIZE. This value should not be too small, otherwise the -%% frequent operations on the queues of q2 and q3 will not be -%% effectively amortised (switching the direction of queue access -%% defeats amortisation), nor should it be too big, otherwise -%% converting a batch stalls the queue for too long. Therefore, it -%% must be just right. ram_index_count is used here and is the number -%% of betas. -%% -%% The conversion from alphas to betas is also chunked, but only to -%% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at -%% any one time. This further smooths the effects of changes to the -%% target_ram_count and ensures the queue remains responsive -%% even when there is a large amount of IO work to do. The -%% idle_timeout callback is utilised to ensure that conversions are -%% done as promptly as possible whilst ensuring the queue remains -%% responsive. -%% -%% In the queue we keep track of both messages that are pending -%% delivery and messages that are pending acks. This ensures that -%% purging (deleting the former) and deletion (deleting the former and -%% the latter) are both cheap and do require any scanning through qi -%% segments. -%% -%% Pending acks are recorded in memory either as the tuple {SeqId, -%% Guid, MsgProps} (tuple-form) or as the message itself (message- -%% form). Acks for persistent messages are always stored in the tuple- -%% form. Acks for transient messages are also stored in tuple-form if -%% the message has been sent to disk as part of the memory reduction -%% process. For transient messages that haven't already been written -%% to disk, acks are stored in message-form. -%% -%% During memory reduction, acks stored in message-form are converted -%% to tuple-form, and the corresponding messages are pushed out to -%% disk. -%% -%% The order in which alphas are pushed to betas and message-form acks -%% are pushed to disk is determined dynamically. We always prefer to -%% push messages for the source (alphas or acks) that is growing the -%% fastest (with growth measured as avg. ingress - avg. egress). In -%% each round of memory reduction a chunk of messages at most -%% ?IO_BATCH_SIZE in size is allocated to be pushed to disk. The -%% fastest growing source will be reduced by as much of this chunk as -%% possible. If there is any remaining allocation in the chunk after -%% the first source has been reduced to zero, the second source will -%% be reduced by as much of the remaining chunk as possible. -%% -%% Notes on Clean Shutdown -%% (This documents behaviour in variable_queue, queue_index and -%% msg_store.) -%% -%% In order to try to achieve as fast a start-up as possible, if a -%% clean shutdown occurs, we try to save out state to disk to reduce -%% work on startup. In the msg_store this takes the form of the -%% index_module's state, plus the file_summary ets table, and client -%% refs. In the VQ, this takes the form of the count of persistent -%% messages in the queue and references into the msg_stores. The -%% queue_index adds to these terms the details of its segments and -%% stores the terms in the queue directory. -%% -%% Two message stores are used. One is created for persistent messages -%% to durable queues that must survive restarts, and the other is used -%% for all other messages that just happen to need to be written to -%% disk. On start up we can therefore nuke the transient message -%% store, and be sure that the messages in the persistent store are -%% all that we need. -%% -%% The references to the msg_stores are there so that the msg_store -%% knows to only trust its saved state if all of the queues it was -%% previously talking to come up cleanly. Likewise, the queues -%% themselves (esp queue_index) skips work in init if all the queues -%% and msg_store were shutdown cleanly. This gives both good speed -%% improvements and also robustness so that if anything possibly went -%% wrong in shutdown (or there was subsequent manual tampering), all -%% messages and queues that can be recovered are recovered, safely. -%% -%% To delete transient messages lazily, the variable_queue, on -%% startup, stores the next_seq_id reported by the queue_index as the -%% transient_threshold. From that point on, whenever it's reading a -%% message off disk via the queue_index, if the seq_id is below this -%% threshold and the message is transient then it drops the message -%% (the message itself won't exist on disk because it would have been -%% stored in the transient msg_store which would have had its saved -%% state nuked on startup). This avoids the expensive operation of -%% scanning the entire queue on startup in order to delete transient -%% messages that were only pushed to disk to save memory. -%% -%%---------------------------------------------------------------------------- - --behaviour(rabbit_backing_queue). - --record(vqstate, - { q1, - q2, - delta, - q3, - q4, - next_seq_id, - pending_ack, - pending_ack_index, - ram_ack_index, - index_state, - msg_store_clients, - on_sync, - durable, - transient_threshold, - - len, - persistent_count, - - target_ram_count, - ram_msg_count, - ram_msg_count_prev, - ram_ack_count_prev, - ram_index_count, - out_counter, - in_counter, - rates, - msgs_on_disk, - msg_indices_on_disk, - unconfirmed, - ack_out_counter, - ack_in_counter, - ack_rates - }). - --record(rates, { egress, ingress, avg_egress, avg_ingress, timestamp }). - --record(msg_status, - { seq_id, - guid, - msg, - is_persistent, - is_delivered, - msg_on_disk, - index_on_disk, - msg_props - }). - --record(delta, - { start_seq_id, %% start_seq_id is inclusive - count, - end_seq_id %% end_seq_id is exclusive - }). - --record(tx, { pending_messages, pending_acks }). - --record(sync, { acks_persistent, acks_all, pubs, funs }). - -%% When we discover, on publish, that we should write some indices to -%% disk for some betas, the IO_BATCH_SIZE sets the number of betas -%% that we must be due to write indices for before we do any work at -%% all. This is both a minimum and a maximum - we don't write fewer -%% than IO_BATCH_SIZE indices out in one go, and we don't write more - -%% we can always come back on the next publish to do more. --define(IO_BATCH_SIZE, 64). --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({multiple_routing_keys, []}). - --ifdef(use_specs). - --type(timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --type(seq_id() :: non_neg_integer()). --type(ack() :: seq_id()). - --type(rates() :: #rates { egress :: {timestamp(), non_neg_integer()}, - ingress :: {timestamp(), non_neg_integer()}, - avg_egress :: float(), - avg_ingress :: float(), - timestamp :: timestamp() }). - --type(delta() :: #delta { start_seq_id :: non_neg_integer(), - count :: non_neg_integer(), - end_seq_id :: non_neg_integer() }). - --type(sync() :: #sync { acks_persistent :: [[seq_id()]], - acks_all :: [[seq_id()]], - pubs :: [{message_properties_transformer(), - [rabbit_types:basic_message()]}], - funs :: [fun (() -> any())] }). - --type(state() :: #vqstate { - q1 :: queue(), - q2 :: bpqueue:bpqueue(), - delta :: delta(), - q3 :: bpqueue:bpqueue(), - q4 :: queue(), - next_seq_id :: seq_id(), - pending_ack :: dict(), - ram_ack_index :: gb_tree(), - index_state :: any(), - msg_store_clients :: 'undefined' | {{any(), binary()}, - {any(), binary()}}, - on_sync :: sync(), - durable :: boolean(), - - len :: non_neg_integer(), - persistent_count :: non_neg_integer(), - - transient_threshold :: non_neg_integer(), - target_ram_count :: non_neg_integer() | 'infinity', - ram_msg_count :: non_neg_integer(), - ram_msg_count_prev :: non_neg_integer(), - ram_index_count :: non_neg_integer(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), - rates :: rates(), - msgs_on_disk :: gb_set(), - msg_indices_on_disk :: gb_set(), - unconfirmed :: gb_set(), - ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer(), - ack_rates :: rates() }). - --include("rabbit_backing_queue_spec.hrl"). - --spec(multiple_routing_keys/0 :: () -> 'ok'). - --endif. - --define(BLANK_DELTA, #delta { start_seq_id = undefined, - count = 0, - end_seq_id = undefined }). --define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, - count = 0, - end_seq_id = Z }). - --define(BLANK_SYNC, #sync { acks_persistent = [], - acks_all = [], - pubs = [], - funs = [] }). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start(DurableQueues) -> - {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), - start_msg_store( - [Ref || Terms <- AllTerms, - begin - Ref = proplists:get_value(persistent_ref, Terms), - Ref =/= undefined - end], - StartFunState). - -stop() -> stop_msg_store(). - -start_msg_store(Refs, StartFunState) -> - ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, - [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), - undefined, {fun (ok) -> finished end, ok}]), - ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, - [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), - Refs, StartFunState]). - -stop_msg_store() -> - ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), - ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). - -init(QueueName, IsDurable, Recover) -> - Self = self(), - init(QueueName, IsDurable, Recover, - fun (Guids, ActionTaken) -> - msgs_written_to_disk(Self, Guids, ActionTaken) - end, - fun (Guids) -> msg_indices_written_to_disk(Self, Guids) end). - -init(QueueName, IsDurable, false, MsgOnDiskFun, MsgIdxOnDiskFun) -> - IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), - init(IsDurable, IndexState, 0, [], - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskFun); - false -> undefined - end, - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined)); - -init(QueueName, true, true, MsgOnDiskFun, MsgIdxOnDiskFun) -> - Terms = rabbit_queue_index:shutdown_terms(QueueName), - {PRef, TRef, Terms1} = - case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of - [] -> {proplists:get_value(persistent_ref, Terms), - proplists:get_value(transient_ref, Terms), - Terms}; - _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} - end, - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef, - MsgOnDiskFun), - TransientClient = msg_store_client_init(?TRANSIENT_MSG_STORE, TRef, - undefined), - {DeltaCount, IndexState} = - rabbit_queue_index:recover( - QueueName, Terms1, - rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), - fun (Guid) -> - rabbit_msg_store:contains(Guid, PersistentClient) - end, - MsgIdxOnDiskFun), - init(true, IndexState, DeltaCount, Terms1, - PersistentClient, TransientClient). - -terminate(State) -> - State1 = #vqstate { persistent_count = PCount, - index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(true, tx_commit_index(State)), - PRef = case MSCStateP of - undefined -> undefined; - _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), - rabbit_msg_store:client_ref(MSCStateP) - end, - ok = rabbit_msg_store:client_terminate(MSCStateT), - TRef = rabbit_msg_store:client_ref(MSCStateT), - Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}, - {persistent_count, PCount}], - a(State1 #vqstate { index_state = rabbit_queue_index:terminate( - Terms, IndexState), - msg_store_clients = undefined }). - -%% the only difference between purge and delete is that delete also -%% needs to delete everything that's been delivered and not ack'd. -delete_and_terminate(State) -> - %% TODO: there is no need to interact with qi at all - which we do - %% as part of 'purge' and 'remove_pending_ack', other than - %% deleting it. - {_PurgeCount, State1} = purge(State), - State2 = #vqstate { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(false, State1), - IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), - case MSCStateP of - undefined -> ok; - _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) - end, - rabbit_msg_store:client_delete_and_terminate(MSCStateT), - a(State2 #vqstate { index_state = IndexState1, - msg_store_clients = undefined }). - -purge(State = #vqstate { q4 = Q4, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% TODO: when there are no pending acks, which is a common case, - %% we could simply wipe the qi instead of issuing delivers and - %% acks for all the messages. - {LensByStore, IndexState1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q4, - orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #vqstate { q1 = Q1, - index_state = IndexState2, - msg_store_clients = MSCState1 }} = - purge_betas_and_deltas(LensByStore, - State #vqstate { q4 = queue:new(), - index_state = IndexState1 }), - {LensByStore2, IndexState3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q1, - LensByStore1, IndexState2, MSCState1), - PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, a(State1 #vqstate { q1 = queue:new(), - index_state = IndexState3, - len = 0, - ram_msg_count = 0, - ram_index_count = 0, - persistent_count = PCount1 })}. - -publish(Msg, MsgProps, State) -> - {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), - a(reduce_memory_use(State1)). - -publish_delivered(false, #basic_message { guid = Guid }, - _MsgProps, State = #vqstate { len = 0 }) -> - blind_confirm(self(), gb_sets:singleton(Guid)), - {undefined, a(State)}; -publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, - guid = Guid }, - MsgProps = #message_properties { - needs_confirming = NeedsConfirming }, - State = #vqstate { len = 0, - next_seq_id = SeqId, - out_counter = OutCount, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = true }, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = record_pending_ack(m(MsgStatus1), State1), - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), - {SeqId, a(reduce_memory_use( - State2 #vqstate { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - unconfirmed = UC1 }))}. - -dropwhile(Pred, State) -> - {_OkOrEmpty, State1} = dropwhile1(Pred, State), - State1. - -dropwhile1(Pred, State) -> - internal_queue_out( - fun(MsgStatus = #msg_status { msg_props = MsgProps }, State1) -> - case Pred(MsgProps) of - true -> - {_, State2} = internal_fetch(false, MsgStatus, State1), - dropwhile1(Pred, State2); - false -> - %% message needs to go back into Q4 (or maybe go - %% in for the first time if it was loaded from - %% Q3). Also the msg contents might not be in - %% RAM, so read them in now - {MsgStatus1, State2 = #vqstate { q4 = Q4 }} = - read_msg(MsgStatus, State1), - {ok, State2 #vqstate {q4 = queue:in_r(MsgStatus1, Q4) }} - end - end, State). - -fetch(AckRequired, State) -> - internal_queue_out( - fun(MsgStatus, State1) -> - %% it's possible that the message wasn't read from disk - %% at this point, so read it in. - {MsgStatus1, State2} = read_msg(MsgStatus, State1), - internal_fetch(AckRequired, MsgStatus1, State2) - end, State). - -internal_queue_out(Fun, State = #vqstate { q4 = Q4 }) -> - case queue:out(Q4) of - {empty, _Q4} -> - case fetch_from_q3(State) of - {empty, State1} = Result -> a(State1), Result; - {loaded, {MsgStatus, State1}} -> Fun(MsgStatus, State1) - end; - {{value, MsgStatus}, Q4a} -> - Fun(MsgStatus, State #vqstate { q4 = Q4a }) - end. - -read_msg(MsgStatus = #msg_status { msg = undefined, - guid = Guid, - is_persistent = IsPersistent }, - State = #vqstate { ram_msg_count = RamMsgCount, - msg_store_clients = MSCState}) -> - {{ok, Msg = #basic_message {}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, Guid), - {MsgStatus #msg_status { msg = Msg }, - State #vqstate { ram_msg_count = RamMsgCount + 1, - msg_store_clients = MSCState1 }}; -read_msg(MsgStatus, State) -> - {MsgStatus, State}. - -internal_fetch(AckRequired, MsgStatus = #msg_status { - seq_id = SeqId, - guid = Guid, - msg = Msg, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - State = #vqstate {ram_msg_count = RamMsgCount, - out_counter = OutCount, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% 1. Mark it delivered if necessary - IndexState1 = maybe_write_delivered( - IndexOnDisk andalso not IsDelivered, - SeqId, IndexState), - - %% 2. Remove from msg_store and queue index, if necessary - Rem = fun () -> - ok = msg_store_remove(MSCState, IsPersistent, [Guid]) - end, - Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, - IndexState2 = - case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of - {false, true, false, _} -> Rem(), IndexState1; - {false, true, true, _} -> Rem(), Ack(); - { true, true, true, false} -> Ack(); - _ -> IndexState1 - end, - - %% 3. If an ack is required, add something sensible to PA - {AckTag, State1} = case AckRequired of - true -> StateN = record_pending_ack( - MsgStatus #msg_status { - is_delivered = true }, State), - {SeqId, StateN}; - false -> {undefined, State} - end, - - PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), - Len1 = Len - 1, - RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), - - {{Msg, IsDelivered, AckTag, Len1}, - a(State1 #vqstate { ram_msg_count = RamMsgCount1, - out_counter = OutCount + 1, - index_state = IndexState2, - len = Len1, - persistent_count = PCount1 })}. - -ack(AckTags, State) -> - a(ack(fun msg_store_remove/3, - fun (_, State0) -> State0 end, - AckTags, State)). - -tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, - State = #vqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> - Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), - case IsPersistent andalso IsDurable of - true -> MsgStatus = msg_status(true, undefined, Msg, MsgProps), - #msg_status { msg_on_disk = true } = - maybe_write_msg_to_disk(false, MsgStatus, MSCState); - false -> ok - end, - a(State). - -tx_ack(Txn, AckTags, State) -> - Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), - State. - -tx_rollback(Txn, State = #vqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), - erase_tx(Txn), - ok = case IsDurable of - true -> msg_store_remove(MSCState, true, persistent_guids(Pubs)); - false -> ok - end, - {lists:append(AckTags), a(State)}. - -tx_commit(Txn, Fun, MsgPropsFun, - State = #vqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), - erase_tx(Txn), - AckTags1 = lists:append(AckTags), - PersistentGuids = persistent_guids(Pubs), - HasPersistentPubs = PersistentGuids =/= [], - {AckTags1, - a(case IsDurable andalso HasPersistentPubs of - true -> ok = msg_store_sync( - MSCState, true, PersistentGuids, - msg_store_callback(PersistentGuids, Pubs, AckTags1, - Fun, MsgPropsFun)), - State; - false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, - Fun, MsgPropsFun, State) - end)}. - -requeue(AckTags, MsgPropsFun, State) -> - MsgPropsFun1 = fun (MsgProps) -> - (MsgPropsFun(MsgProps)) #message_properties { - needs_confirming = false } - end, - a(reduce_memory_use( - ack(fun msg_store_release/3, - fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> - {_SeqId, State2} = publish(Msg, MsgPropsFun1(MsgProps), - true, false, State1), - State2; - ({IsPersistent, Guid, MsgProps}, State1) -> - #vqstate { msg_store_clients = MSCState } = State1, - {{ok, Msg = #basic_message{}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, Guid), - State2 = State1 #vqstate { msg_store_clients = MSCState1 }, - {_SeqId, State3} = publish(Msg, MsgPropsFun1(MsgProps), - true, true, State2), - State3 - end, - AckTags, State))). - -len(#vqstate { len = Len }) -> Len. - -is_empty(State) -> 0 == len(State). - -set_ram_duration_target( - DurationTarget, State = #vqstate { - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate }, - target_ram_count = TargetRamCount }) -> - Rate = - AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, - TargetRamCount1 = - case DurationTarget of - infinity -> infinity; - _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec - end, - State1 = State #vqstate { target_ram_count = TargetRamCount1 }, - a(case TargetRamCount1 == infinity orelse - (TargetRamCount =/= infinity andalso - TargetRamCount1 >= TargetRamCount) of - true -> State1; - false -> reduce_memory_use(State1) - end). - -ram_duration(State = #vqstate { - rates = #rates { timestamp = Timestamp, - egress = Egress, - ingress = Ingress } = Rates, - ack_rates = #rates { timestamp = AckTimestamp, - egress = AckEgress, - ingress = AckIngress } = ARates, - in_counter = InCount, - out_counter = OutCount, - ack_in_counter = AckInCount, - ack_out_counter = AckOutCount, - ram_msg_count = RamMsgCount, - ram_msg_count_prev = RamMsgCountPrev, - ram_ack_index = RamAckIndex, - ram_ack_count_prev = RamAckCountPrev }) -> - Now = now(), - {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), - {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), - - {AvgAckEgressRate, AckEgress1} = - update_rate(Now, AckTimestamp, AckOutCount, AckEgress), - {AvgAckIngressRate, AckIngress1} = - update_rate(Now, AckTimestamp, AckInCount, AckIngress), - - RamAckCount = gb_trees:size(RamAckIndex), - - Duration = %% msgs+acks / (msgs+acks/sec) == sec - case AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso - AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0 of - true -> infinity; - false -> (RamMsgCountPrev + RamMsgCount + - RamAckCount + RamAckCountPrev) / - (4 * (AvgEgressRate + AvgIngressRate + - AvgAckEgressRate + AvgAckIngressRate)) - end, - - {Duration, State #vqstate { - rates = Rates #rates { - egress = Egress1, - ingress = Ingress1, - avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate, - timestamp = Now }, - ack_rates = ARates #rates { - egress = AckEgress1, - ingress = AckIngress1, - avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate, - timestamp = Now }, - in_counter = 0, - out_counter = 0, - ack_in_counter = 0, - ack_out_counter = 0, - ram_msg_count_prev = RamMsgCount, - ram_ack_count_prev = RamAckCount }}. - -needs_idle_timeout(State = #vqstate { on_sync = OnSync }) -> - case {OnSync, needs_index_sync(State)} of - {?BLANK_SYNC, false} -> - {Res, _State} = reduce_memory_use( - fun (_Quota, State1) -> {0, State1} end, - fun (_Quota, State1) -> State1 end, - fun (State1) -> State1 end, - fun (_Quota, State1) -> {0, State1} end, - State), - Res; - _ -> - true - end. - -idle_timeout(State) -> - a(reduce_memory_use(confirm_commit_index(tx_commit_index(State)))). - -handle_pre_hibernate(State = #vqstate { index_state = IndexState }) -> - State #vqstate { index_state = rabbit_queue_index:flush(IndexState) }. - -status(#vqstate { - q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - pending_ack = PA, - ram_ack_index = RAI, - on_sync = #sync { funs = From }, - target_ram_count = TargetRamCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, - next_seq_id = NextSeqId, - persistent_count = PersistentCount, - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate } }) -> - [ {q1 , queue:len(Q1)}, - {q2 , bpqueue:len(Q2)}, - {delta , Delta}, - {q3 , bpqueue:len(Q3)}, - {q4 , queue:len(Q4)}, - {len , Len}, - {pending_acks , dict:size(PA)}, - {outstanding_txns , length(From)}, - {target_ram_count , TargetRamCount}, - {ram_msg_count , RamMsgCount}, - {ram_ack_count , gb_trees:size(RAI)}, - {ram_index_count , RamIndexCount}, - {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount}, - {avg_ingress_rate , AvgIngressRate}, - {avg_egress_rate , AvgEgressRate}, - {avg_ack_ingress_rate, AvgAckIngressRate}, - {avg_ack_egress_rate , AvgAckEgressRate} ]. - -%%---------------------------------------------------------------------------- -%% Minor helpers -%%---------------------------------------------------------------------------- - -a(State = #vqstate { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - persistent_count = PersistentCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }) -> - E1 = queue:is_empty(Q1), - E2 = bpqueue:is_empty(Q2), - ED = Delta#delta.count == 0, - E3 = bpqueue:is_empty(Q3), - E4 = queue:is_empty(Q4), - LZ = Len == 0, - - true = E1 or not E3, - true = E2 or not ED, - true = ED or not E3, - true = LZ == (E3 and E4), - - true = Len >= 0, - true = PersistentCount >= 0, - true = RamMsgCount >= 0, - true = RamIndexCount >= 0, - - State. - -m(MsgStatus = #msg_status { msg = Msg, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }) -> - true = (not IsPersistent) or IndexOnDisk, - true = (not IndexOnDisk) or MsgOnDisk, - true = (Msg =/= undefined) or MsgOnDisk, - - MsgStatus. - -one_if(true ) -> 1; -one_if(false) -> 0. - -cons_if(true, E, L) -> [E | L]; -cons_if(false, _E, L) -> L. - -gb_sets_maybe_insert(false, _Val, Set) -> Set; -%% when requeueing, we re-add a guid to the unconfirmed set -gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). - -msg_status(IsPersistent, SeqId, Msg = #basic_message { guid = Guid }, - MsgProps) -> - #msg_status { seq_id = SeqId, guid = Guid, msg = Msg, - is_persistent = IsPersistent, is_delivered = false, - msg_on_disk = false, index_on_disk = false, - msg_props = MsgProps }. - -with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> - {Result, MSCStateP1} = Fun(MSCStateP), - {Result, {MSCStateP1, MSCStateT}}; -with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> - {Result, MSCStateT1} = Fun(MSCStateT), - {Result, {MSCStateP, MSCStateT1}}. - -with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> - {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, - fun (MSCState1) -> - {Fun(MSCState1), MSCState1} - end), - Res. - -msg_store_client_init(MsgStore, MsgOnDiskFun) -> - msg_store_client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun). - -msg_store_client_init(MsgStore, Ref, MsgOnDiskFun) -> - rabbit_msg_store:client_init( - MsgStore, Ref, MsgOnDiskFun, - msg_store_close_fds_fun(MsgStore =:= ?PERSISTENT_MSG_STORE)). - -msg_store_write(MSCState, IsPersistent, Guid, Msg) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:write(Guid, Msg, MSCState1) end). - -msg_store_read(MSCState, IsPersistent, Guid) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:read(Guid, MSCState1) end). - -msg_store_remove(MSCState, IsPersistent, Guids) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:remove(Guids, MCSState1) end). - -msg_store_release(MSCState, IsPersistent, Guids) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:release(Guids, MCSState1) end). - -msg_store_sync(MSCState, IsPersistent, Guids, Callback) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:sync(Guids, Callback, MSCState1) end). - -msg_store_close_fds(MSCState, IsPersistent) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:close_all_indicated(MSCState1) end). - -msg_store_close_fds_fun(IsPersistent) -> - Self = self(), - fun () -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - Self, - fun (State = #vqstate { msg_store_clients = MSCState }) -> - {ok, MSCState1} = - msg_store_close_fds(MSCState, IsPersistent), - {[], State #vqstate { msg_store_clients = MSCState1 }} - end) - end. - -maybe_write_delivered(false, _SeqId, IndexState) -> - IndexState; -maybe_write_delivered(true, SeqId, IndexState) -> - rabbit_queue_index:deliver([SeqId], IndexState). - -lookup_tx(Txn) -> case get({txn, Txn}) of - undefined -> #tx { pending_messages = [], - pending_acks = [] }; - V -> V - end. - -store_tx(Txn, Tx) -> put({txn, Txn}, Tx). - -erase_tx(Txn) -> erase({txn, Txn}). - -persistent_guids(Pubs) -> - [Guid || {#basic_message { guid = Guid, - is_persistent = true }, _MsgProps} <- Pubs]. - -betas_from_index_entries(List, TransientThreshold, IndexState) -> - {Filtered, Delivers, Acks} = - lists:foldr( - fun ({Guid, SeqId, MsgProps, IsPersistent, IsDelivered}, - {Filtered1, Delivers1, Acks1}) -> - case SeqId < TransientThreshold andalso not IsPersistent of - true -> {Filtered1, - cons_if(not IsDelivered, SeqId, Delivers1), - [SeqId | Acks1]}; - false -> {[m(#msg_status { msg = undefined, - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true, - msg_props = MsgProps - }) | Filtered1], - Delivers1, - Acks1} - end - end, {[], [], []}, List), - {bpqueue:from_list([{true, Filtered}]), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -%% the first arg is the older delta -combine_deltas(?BLANK_DELTA_PATTERN(X), ?BLANK_DELTA_PATTERN(Y)) -> - ?BLANK_DELTA; -combine_deltas(?BLANK_DELTA_PATTERN(X), #delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = B) -> - true = Start + Count =< End, %% ASSERTION - B; -combine_deltas(#delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = A, ?BLANK_DELTA_PATTERN(Y)) -> - true = Start + Count =< End, %% ASSERTION - A; -combine_deltas(#delta { start_seq_id = StartLow, - count = CountLow, - end_seq_id = EndLow }, - #delta { start_seq_id = StartHigh, - count = CountHigh, - end_seq_id = EndHigh }) -> - Count = CountLow + CountHigh, - true = (StartLow =< StartHigh) %% ASSERTIONS - andalso ((StartLow + CountLow) =< EndLow) - andalso ((StartHigh + CountHigh) =< EndHigh) - andalso ((StartLow + Count) =< EndHigh), - #delta { start_seq_id = StartLow, count = Count, end_seq_id = EndHigh }. - -beta_fold(Fun, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). - -update_rate(Now, Then, Count, {OThen, OCount}) -> - %% avg over the current period and the previous - {1000000.0 * (Count + OCount) / timer:now_diff(Now, OThen), {Then, Count}}. - -%%---------------------------------------------------------------------------- -%% Internal major helpers for Public API -%%---------------------------------------------------------------------------- - -init(IsDurable, IndexState, DeltaCount, Terms, - PersistentClient, TransientClient) -> - {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), - - DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), - Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of - true -> ?BLANK_DELTA; - false -> #delta { start_seq_id = LowSeqId, - count = DeltaCount1, - end_seq_id = NextSeqId } - end, - Now = now(), - State = #vqstate { - q1 = queue:new(), - q2 = bpqueue:new(), - delta = Delta, - q3 = bpqueue:new(), - q4 = queue:new(), - next_seq_id = NextSeqId, - pending_ack = dict:new(), - ram_ack_index = gb_trees:empty(), - index_state = IndexState1, - msg_store_clients = {PersistentClient, TransientClient}, - on_sync = ?BLANK_SYNC, - durable = IsDurable, - transient_threshold = NextSeqId, - - len = DeltaCount1, - persistent_count = DeltaCount1, - - target_ram_count = infinity, - ram_msg_count = 0, - ram_msg_count_prev = 0, - ram_ack_count_prev = 0, - ram_index_count = 0, - out_counter = 0, - in_counter = 0, - rates = blank_rate(Now, DeltaCount1), - msgs_on_disk = gb_sets:new(), - msg_indices_on_disk = gb_sets:new(), - unconfirmed = gb_sets:new(), - ack_out_counter = 0, - ack_in_counter = 0, - ack_rates = blank_rate(Now, 0) }, - a(maybe_deltas_to_betas(State)). - -blank_rate(Timestamp, IngressLength) -> - #rates { egress = {Timestamp, 0}, - ingress = {Timestamp, IngressLength}, - avg_egress = 0.0, - avg_ingress = 0.0, - timestamp = Timestamp }. - -msg_store_callback(PersistentGuids, Pubs, AckTags, Fun, MsgPropsFun) -> - Self = self(), - F = fun () -> rabbit_amqqueue:maybe_run_queue_via_backing_queue( - Self, fun (StateN) -> {[], tx_commit_post_msg_store( - true, Pubs, AckTags, - Fun, MsgPropsFun, StateN)} - end) - end, - fun () -> spawn(fun () -> ok = rabbit_misc:with_exit_handler( - fun () -> remove_persistent_messages( - PersistentGuids) - end, F) - end) - end. - -remove_persistent_messages(Guids) -> - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, undefined), - ok = rabbit_msg_store:remove(Guids, PersistentClient), - rabbit_msg_store:client_delete_and_terminate(PersistentClient). - -tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, - State = #vqstate { - on_sync = OnSync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - pending_ack = PA, - durable = IsDurable }) -> - PersistentAcks = - case IsDurable of - true -> [AckTag || AckTag <- AckTags, - case dict:fetch(AckTag, PA) of - #msg_status {} -> - false; - {IsPersistent, _Guid, _MsgProps} -> - IsPersistent - end]; - false -> [] - end, - case IsDurable andalso (HasPersistentPubs orelse PersistentAcks =/= []) of - true -> State #vqstate { - on_sync = #sync { - acks_persistent = [PersistentAcks | SPAcks], - acks_all = [AckTags | SAcks], - pubs = [{MsgPropsFun, Pubs} | SPubs], - funs = [Fun | SFuns] }}; - false -> State1 = tx_commit_index( - State #vqstate { - on_sync = #sync { - acks_persistent = [], - acks_all = [AckTags], - pubs = [{MsgPropsFun, Pubs}], - funs = [Fun] } }), - State1 #vqstate { on_sync = OnSync } - end. - -tx_commit_index(State = #vqstate { on_sync = ?BLANK_SYNC }) -> - State; -tx_commit_index(State = #vqstate { on_sync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - durable = IsDurable }) -> - PAcks = lists:append(SPAcks), - Acks = lists:append(SAcks), - Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), - {Msg, MsgProps} <- lists:reverse(PubsN)], - {SeqIds, State1 = #vqstate { index_state = IndexState }} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, - MsgProps}, - {SeqIdsAcc, State2}) -> - IsPersistent1 = IsDurable andalso IsPersistent, - {SeqId, State3} = - publish(Msg, MsgProps, false, IsPersistent1, State2), - {cons_if(IsPersistent1, SeqId, SeqIdsAcc), State3} - end, {PAcks, ack(Acks, State)}, Pubs), - IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), - [ Fun() || Fun <- lists:reverse(SFuns) ], - reduce_memory_use( - State1 #vqstate { index_state = IndexState1, on_sync = ?BLANK_SYNC }). - -purge_betas_and_deltas(LensByStore, - State = #vqstate { q3 = Q3, - index_state = IndexState, - msg_store_clients = MSCState }) -> - case bpqueue:is_empty(Q3) of - true -> {LensByStore, State}; - false -> {LensByStore1, IndexState1} = - remove_queue_entries(fun beta_fold/3, Q3, - LensByStore, IndexState, MSCState), - purge_betas_and_deltas(LensByStore1, - maybe_deltas_to_betas( - State #vqstate { - q3 = bpqueue:new(), - index_state = IndexState1 })) - end. - -remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> - {GuidsByStore, Delivers, Acks} = - Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), - ok = orddict:fold(fun (IsPersistent, Guids, ok) -> - msg_store_remove(MSCState, IsPersistent, Guids) - end, ok, GuidsByStore), - {sum_guids_by_store_to_len(LensByStore, GuidsByStore), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -remove_queue_entries1( - #msg_status { guid = Guid, seq_id = SeqId, - is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, - {GuidsByStore, Delivers, Acks}) -> - {case MsgOnDisk of - true -> rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore); - false -> GuidsByStore - end, - cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), - cons_if(IndexOnDisk, SeqId, Acks)}. - -sum_guids_by_store_to_len(LensByStore, GuidsByStore) -> - orddict:fold( - fun (IsPersistent, Guids, LensByStore1) -> - orddict:update_counter(IsPersistent, length(Guids), LensByStore1) - end, LensByStore, GuidsByStore). - -%%---------------------------------------------------------------------------- -%% Internal gubbins for publishing -%%---------------------------------------------------------------------------- - -publish(Msg = #basic_message { is_persistent = IsPersistent, guid = Guid }, - MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, MsgOnDisk, - State = #vqstate { q1 = Q1, q3 = Q3, q4 = Q4, - next_seq_id = SeqId, - len = Len, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - ram_msg_count = RamMsgCount, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = case bpqueue:is_empty(Q3) of - false -> State1 #vqstate { q1 = queue:in(m(MsgStatus1), Q1) }; - true -> State1 #vqstate { q4 = queue:in(m(MsgStatus1), Q4) } - end, - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, Guid, UC), - {SeqId, State2 #vqstate { next_seq_id = SeqId + 1, - len = Len + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - ram_msg_count = RamMsgCount + 1, - unconfirmed = UC1 }}. - -maybe_write_msg_to_disk(_Force, MsgStatus = #msg_status { - msg_on_disk = true }, _MSCState) -> - MsgStatus; -maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { - msg = Msg, guid = Guid, - is_persistent = IsPersistent }, MSCState) - when Force orelse IsPersistent -> - Msg1 = Msg #basic_message { - %% don't persist any recoverable decoded properties - content = rabbit_binary_parser:clear_decoded_content( - Msg #basic_message.content)}, - ok = msg_store_write(MSCState, IsPersistent, Guid, Msg1), - MsgStatus #msg_status { msg_on_disk = true }; -maybe_write_msg_to_disk(_Force, MsgStatus, _MSCState) -> - MsgStatus. - -maybe_write_index_to_disk(_Force, MsgStatus = #msg_status { - index_on_disk = true }, IndexState) -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - {MsgStatus, IndexState}; -maybe_write_index_to_disk(Force, MsgStatus = #msg_status { - guid = Guid, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_props = MsgProps}, IndexState) - when Force orelse IsPersistent -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - IndexState1 = rabbit_queue_index:publish( - Guid, SeqId, MsgProps, IsPersistent, IndexState), - {MsgStatus #msg_status { index_on_disk = true }, - maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; -maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> - {MsgStatus, IndexState}. - -maybe_write_to_disk(ForceMsg, ForceIndex, MsgStatus, - State = #vqstate { index_state = IndexState, - msg_store_clients = MSCState }) -> - MsgStatus1 = maybe_write_msg_to_disk(ForceMsg, MsgStatus, MSCState), - {MsgStatus2, IndexState1} = - maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), - {MsgStatus2, State #vqstate { index_state = IndexState1 }}. - -%%---------------------------------------------------------------------------- -%% Internal gubbins for acks -%%---------------------------------------------------------------------------- - -record_pending_ack(#msg_status { seq_id = SeqId, - guid = Guid, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - msg_props = MsgProps } = MsgStatus, - State = #vqstate { pending_ack = PA, - ram_ack_index = RAI, - ack_in_counter = AckInCount}) -> - {AckEntry, RAI1} = - case MsgOnDisk of - true -> {{IsPersistent, Guid, MsgProps}, RAI}; - false -> {MsgStatus, gb_trees:insert(SeqId, Guid, RAI)} - end, - PA1 = dict:store(SeqId, AckEntry, PA), - State #vqstate { pending_ack = PA1, - ram_ack_index = RAI1, - ack_in_counter = AckInCount + 1}. - -remove_pending_ack(KeepPersistent, - State = #vqstate { pending_ack = PA, - index_state = IndexState, - msg_store_clients = MSCState }) -> - {PersistentSeqIds, GuidsByStore} = - dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - State1 = State #vqstate { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, - case KeepPersistent of - true -> case orddict:find(false, GuidsByStore) of - error -> State1; - {ok, Guids} -> ok = msg_store_remove(MSCState, false, - Guids), - State1 - end; - false -> IndexState1 = - rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = msg_store_remove(MSCState, IsPersistent, Guids) - || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - State1 #vqstate { index_state = IndexState1 } - end. - -ack(_MsgStoreFun, _Fun, [], State) -> - State; -ack(MsgStoreFun, Fun, AckTags, State) -> - {{PersistentSeqIds, GuidsByStore}, - State1 = #vqstate { index_state = IndexState, - msg_store_clients = MSCState, - persistent_count = PCount, - ack_out_counter = AckOutCount }} = - lists:foldl( - fun (SeqId, {Acc, State2 = #vqstate { pending_ack = PA, - ram_ack_index = RAI }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, State2 #vqstate { - pending_ack = dict:erase(SeqId, PA), - ram_ack_index = - gb_trees:delete_any(SeqId, RAI)})} - end, {accumulate_ack_init(), State}, AckTags), - IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = MsgStoreFun(MSCState, IsPersistent, Guids) - || {IsPersistent, Guids} <- orddict:to_list(GuidsByStore)], - PCount1 = PCount - find_persistent_count(sum_guids_by_store_to_len( - orddict:new(), GuidsByStore)), - State1 #vqstate { index_state = IndexState1, - persistent_count = PCount1, - ack_out_counter = AckOutCount + length(AckTags) }. - -accumulate_ack_init() -> {[], orddict:new()}. - -accumulate_ack(_SeqId, #msg_status { is_persistent = false, %% ASSERTIONS - msg_on_disk = false, - index_on_disk = false }, - {PersistentSeqIdsAcc, GuidsByStore}) -> - {PersistentSeqIdsAcc, GuidsByStore}; -accumulate_ack(SeqId, {IsPersistent, Guid, _MsgProps}, - {PersistentSeqIdsAcc, GuidsByStore}) -> - {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), - rabbit_misc:orddict_cons(IsPersistent, Guid, GuidsByStore)}. - -find_persistent_count(LensByStore) -> - case orddict:find(true, LensByStore) of - error -> 0; - {ok, Len} -> Len - end. - -%%---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%%---------------------------------------------------------------------------- - -confirm_commit_index(State = #vqstate { index_state = IndexState }) -> - case needs_index_sync(State) of - true -> State #vqstate { - index_state = rabbit_queue_index:sync(IndexState) }; - false -> State - end. - -remove_confirms(GuidSet, State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - State #vqstate { msgs_on_disk = gb_sets:difference(MOD, GuidSet), - msg_indices_on_disk = gb_sets:difference(MIOD, GuidSet), - unconfirmed = gb_sets:difference(UC, GuidSet) }. - -needs_index_sync(#vqstate { msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - %% If UC is empty then by definition, MIOD and MOD are also empty - %% and there's nothing that can be pending a sync. - - %% If UC is not empty, then we want to find is_empty(UC - MIOD), - %% but the subtraction can be expensive. Thus instead, we test to - %% see if UC is a subset of MIOD. This can only be the case if - %% MIOD == UC, which would indicate that every message in UC is - %% also in MIOD and is thus _all_ pending on a msg_store sync, not - %% on a qi sync. Thus the negation of this is sufficient. Because - %% is_subset is short circuiting, this is more efficient than the - %% subtraction. - not (gb_sets:is_empty(UC) orelse gb_sets:is_subset(UC, MIOD)). - -msgs_confirmed(GuidSet, State) -> - {gb_sets:to_list(GuidSet), remove_confirms(GuidSet, State)}. - -blind_confirm(QPid, GuidSet) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (State) -> msgs_confirmed(GuidSet, State) end). - -msgs_written_to_disk(QPid, GuidSet, removed) -> - blind_confirm(QPid, GuidSet); -msgs_written_to_disk(QPid, GuidSet, written) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - msgs_confirmed(gb_sets:intersection(GuidSet, MIOD), - State #vqstate { - msgs_on_disk = - gb_sets:union( - MOD, gb_sets:intersection(UC, GuidSet)) }) - end). - -msg_indices_written_to_disk(QPid, GuidSet) -> - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - QPid, fun (State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - msgs_confirmed(gb_sets:intersection(GuidSet, MOD), - State #vqstate { - msg_indices_on_disk = - gb_sets:union( - MIOD, gb_sets:intersection(UC, GuidSet)) }) - end). - -%%---------------------------------------------------------------------------- -%% Phase changes -%%---------------------------------------------------------------------------- - -%% Determine whether a reduction in memory use is necessary, and call -%% functions to perform the required phase changes. The function can -%% also be used to just do the former, by passing in dummy phase -%% change functions. -%% -%% The function does not report on any needed beta->delta conversions, -%% though the conversion function for that is called as necessary. The -%% reason is twofold. Firstly, this is safe because the conversion is -%% only ever necessary just after a transition to a -%% target_ram_count of zero or after an incremental alpha->beta -%% conversion. In the former case the conversion is performed straight -%% away (i.e. any betas present at the time are converted to deltas), -%% and in the latter case the need for a conversion is flagged up -%% anyway. Secondly, this is necessary because we do not have a -%% precise and cheap predicate for determining whether a beta->delta -%% conversion is necessary - due to the complexities of retaining up -%% one segment's worth of messages in q3 - and thus would risk -%% perpetually reporting the need for a conversion when no such -%% conversion is needed. That in turn could cause an infinite loop. -reduce_memory_use(_AlphaBetaFun, _BetaGammaFun, _BetaDeltaFun, _AckFun, - State = #vqstate {target_ram_count = infinity}) -> - {false, State}; -reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, - State = #vqstate { - ram_ack_index = RamAckIndex, - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount, - rates = #rates { avg_ingress = AvgIngress, - avg_egress = AvgEgress }, - ack_rates = #rates { avg_ingress = AvgAckIngress, - avg_egress = AvgAckEgress } - }) -> - - {Reduce, State1} = - case chunk_size(RamMsgCount + gb_trees:size(RamAckIndex), - TargetRamCount) of - 0 -> {false, State}; - %% Reduce memory of pending acks and alphas. The order is - %% determined based on which is growing faster. Whichever - %% comes second may very well get a quota of 0 if the - %% first manages to push out the max number of messages. - S1 -> {_, State2} = - lists:foldl(fun (ReduceFun, {QuotaN, StateN}) -> - ReduceFun(QuotaN, StateN) - end, - {S1, State}, - case (AvgAckIngress - AvgAckEgress) > - (AvgIngress - AvgEgress) of - true -> [AckFun, AlphaBetaFun]; - false -> [AlphaBetaFun, AckFun] - end), - {true, State2} - end, - - case State1 #vqstate.target_ram_count of - 0 -> {Reduce, BetaDeltaFun(State1)}; - _ -> case chunk_size(State1 #vqstate.ram_index_count, - permitted_ram_index_count(State1)) of - ?IO_BATCH_SIZE = S2 -> {true, BetaGammaFun(S2, State1)}; - _ -> {Reduce, State1} - end - end. - -limit_ram_acks(0, State) -> - {0, State}; -limit_ram_acks(Quota, State = #vqstate { pending_ack = PA, - ram_ack_index = RAI }) -> - case gb_trees:is_empty(RAI) of - true -> - {Quota, State}; - false -> - {SeqId, Guid, RAI1} = gb_trees:take_largest(RAI), - MsgStatus = #msg_status { - guid = Guid, %% ASSERTION - is_persistent = false, %% ASSERTION - msg_props = MsgProps } = dict:fetch(SeqId, PA), - {_, State1} = maybe_write_to_disk(true, false, MsgStatus, State), - limit_ram_acks(Quota - 1, - State1 #vqstate { - pending_ack = - dict:store(SeqId, {false, Guid, MsgProps}, PA), - ram_ack_index = RAI1 }) - end. - - -reduce_memory_use(State) -> - {_, State1} = reduce_memory_use(fun push_alphas_to_betas/2, - fun limit_ram_index/2, - fun push_betas_to_deltas/1, - fun limit_ram_acks/2, - State), - State1. - -limit_ram_index(Quota, State = #vqstate { q2 = Q2, q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Q2a, {Quota1, IndexState1}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q2, {Quota, IndexState}), - %% TODO: we shouldn't be writing index entries for messages that - %% can never end up in delta due them residing in the only segment - %% held by q3. - {Q3a, {Quota2, IndexState2}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q3, {Quota1, IndexState1}), - State #vqstate { q2 = Q2a, q3 = Q3a, - index_state = IndexState2, - ram_index_count = RamIndexCount - (Quota - Quota2) }. - -limit_ram_index(_MapFoldFilterFun, Q, {0, IndexState}) -> - {Q, {0, IndexState}}; -limit_ram_index(MapFoldFilterFun, Q, {Quota, IndexState}) -> - MapFoldFilterFun( - fun erlang:'not'/1, - fun (MsgStatus, {0, _IndexStateN}) -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - stop; - (MsgStatus, {N, IndexStateN}) when N > 0 -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - {MsgStatus1, IndexStateN1} = - maybe_write_index_to_disk(true, MsgStatus, IndexStateN), - {true, m(MsgStatus1), {N-1, IndexStateN1}} - end, {Quota, IndexState}, Q). - -permitted_ram_index_count(#vqstate { len = 0 }) -> - infinity; -permitted_ram_index_count(#vqstate { len = Len, - q2 = Q2, - q3 = Q3, - delta = #delta { count = DeltaCount } }) -> - BetaLen = bpqueue:len(Q2) + bpqueue:len(Q3), - BetaLen - trunc(BetaLen * BetaLen / (Len - DeltaCount)). - -chunk_size(Current, Permitted) - when Permitted =:= infinity orelse Permitted >= Current -> - 0; -chunk_size(Current, Permitted) -> - lists:min([Current - Permitted, ?IO_BATCH_SIZE]). - -fetch_from_q3(State = #vqstate { - q1 = Q1, - q2 = Q2, - delta = #delta { count = DeltaCount }, - q3 = Q3, - q4 = Q4, - ram_index_count = RamIndexCount}) -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - {empty, State}; - {{value, IndexOnDisk, MsgStatus}, Q3a} -> - RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), - true = RamIndexCount1 >= 0, %% ASSERTION - State1 = State #vqstate { q3 = Q3a, - ram_index_count = RamIndexCount1 }, - State2 = - case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of - {true, true} -> - %% q3 is now empty, it wasn't before; delta is - %% still empty. So q2 must be empty, and we - %% know q4 is empty otherwise we wouldn't be - %% loading from q3. As such, we can just set - %% q4 to Q1. - true = bpqueue:is_empty(Q2), %% ASSERTION - true = queue:is_empty(Q4), %% ASSERTION - State1 #vqstate { q1 = queue:new(), - q4 = Q1 }; - {true, false} -> - maybe_deltas_to_betas(State1); - {false, _} -> - %% q3 still isn't empty, we've not touched - %% delta, so the invariants between q1, q2, - %% delta and q3 are maintained - State1 - end, - {loaded, {MsgStatus, State2}} - end. - -maybe_deltas_to_betas(State = #vqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> - State; -maybe_deltas_to_betas(State = #vqstate { - q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - transient_threshold = TransientThreshold }) -> - #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = DeltaSeqIdEnd } = Delta, - DeltaSeqId1 = - lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), - DeltaSeqIdEnd]), - {List, IndexState1} = - rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), - {Q3a, IndexState2} = - betas_from_index_entries(List, TransientThreshold, IndexState1), - State1 = State #vqstate { index_state = IndexState2 }, - case bpqueue:len(Q3a) of - 0 -> - %% we ignored every message in the segment due to it being - %% transient and below the threshold - maybe_deltas_to_betas( - State1 #vqstate { - delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); - Q3aLen -> - Q3b = bpqueue:join(Q3, Q3a), - case DeltaCount - Q3aLen of - 0 -> - %% delta is now empty, but it wasn't before, so - %% can now join q2 onto q3 - State1 #vqstate { q2 = bpqueue:new(), - delta = ?BLANK_DELTA, - q3 = bpqueue:join(Q3b, Q2) }; - N when N > 0 -> - Delta1 = #delta { start_seq_id = DeltaSeqId1, - count = N, - end_seq_id = DeltaSeqIdEnd }, - State1 #vqstate { delta = Delta1, - q3 = Q3b } - end - end. - -push_alphas_to_betas(Quota, State) -> - {Quota1, State1} = maybe_push_q1_to_betas(Quota, State), - {Quota2, State2} = maybe_push_q4_to_betas(Quota1, State1), - {Quota2, State2}. - -maybe_push_q1_to_betas(Quota, State = #vqstate { q1 = Q1 }) -> - maybe_push_alphas_to_betas( - fun queue:out/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q3 = Q3, delta = #delta { count = 0 } }) -> - State1 #vqstate { q1 = Q1a, - q3 = bpqueue:in(IndexOnDisk, MsgStatus, Q3) }; - (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q2 = Q2 }) -> - State1 #vqstate { q1 = Q1a, - q2 = bpqueue:in(IndexOnDisk, MsgStatus, Q2) } - end, Quota, Q1, State). - -maybe_push_q4_to_betas(Quota, State = #vqstate { q4 = Q4 }) -> - maybe_push_alphas_to_betas( - fun queue:out_r/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q4a, State1 = #vqstate { q3 = Q3 }) -> - State1 #vqstate { q3 = bpqueue:in_r(IndexOnDisk, MsgStatus, Q3), - q4 = Q4a } - end, Quota, Q4, State). - -maybe_push_alphas_to_betas(_Generator, _Consumer, Quota, _Q, - State = #vqstate { - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount }) - when Quota =:= 0 orelse - TargetRamCount =:= infinity orelse - TargetRamCount >= RamMsgCount -> - {Quota, State}; -maybe_push_alphas_to_betas(Generator, Consumer, Quota, Q, State) -> - case Generator(Q) of - {empty, _Q} -> - {Quota, State}; - {{value, MsgStatus}, Qa} -> - {MsgStatus1 = #msg_status { msg_on_disk = true, - index_on_disk = IndexOnDisk }, - State1 = #vqstate { ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }} = - maybe_write_to_disk(true, false, MsgStatus, State), - MsgStatus2 = m(MsgStatus1 #msg_status { msg = undefined }), - RamIndexCount1 = RamIndexCount + one_if(not IndexOnDisk), - State2 = State1 #vqstate { ram_msg_count = RamMsgCount - 1, - ram_index_count = RamIndexCount1 }, - maybe_push_alphas_to_betas(Generator, Consumer, Quota - 1, Qa, - Consumer(MsgStatus2, Qa, State2)) - end. - -push_betas_to_deltas(State = #vqstate { q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Delta2, Q2a, RamIndexCount2, IndexState2} = - push_betas_to_deltas(fun (Q2MinSeqId) -> Q2MinSeqId end, - fun bpqueue:out/1, Q2, - RamIndexCount, IndexState), - {Delta3, Q3a, RamIndexCount3, IndexState3} = - push_betas_to_deltas(fun rabbit_queue_index:next_segment_boundary/1, - fun bpqueue:out_r/1, Q3, - RamIndexCount2, IndexState2), - Delta4 = combine_deltas(Delta3, combine_deltas(Delta, Delta2)), - State #vqstate { q2 = Q2a, - delta = Delta4, - q3 = Q3a, - index_state = IndexState3, - ram_index_count = RamIndexCount3 }. - -push_betas_to_deltas(LimitFun, Generator, Q, RamIndexCount, IndexState) -> - case bpqueue:out(Q) of - {empty, _Q} -> - {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk1, #msg_status { seq_id = MinSeqId }}, _Qa} -> - {{value, _IndexOnDisk2, #msg_status { seq_id = MaxSeqId }}, _Qb} = - bpqueue:out_r(Q), - Limit = LimitFun(MinSeqId), - case MaxSeqId < Limit of - true -> {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - false -> {Len, Qc, RamIndexCount1, IndexState1} = - push_betas_to_deltas(Generator, Limit, Q, 0, - RamIndexCount, IndexState), - {#delta { start_seq_id = Limit, - count = Len, - end_seq_id = MaxSeqId + 1 }, - Qc, RamIndexCount1, IndexState1} - end - end. - -push_betas_to_deltas(Generator, Limit, Q, Count, RamIndexCount, IndexState) -> - case Generator(Q) of - {empty, _Q} -> - {Count, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk, #msg_status { seq_id = SeqId }}, _Qa} - when SeqId < Limit -> - {Count, Q, RamIndexCount, IndexState}; - {{value, IndexOnDisk, MsgStatus}, Qa} -> - {RamIndexCount1, IndexState1} = - case IndexOnDisk of - true -> {RamIndexCount, IndexState}; - false -> {#msg_status { index_on_disk = true }, - IndexState2} = - maybe_write_index_to_disk(true, MsgStatus, - IndexState), - {RamIndexCount - 1, IndexState2} - end, - push_betas_to_deltas( - Generator, Limit, Qa, Count + 1, RamIndexCount1, IndexState1) - end. - -%%---------------------------------------------------------------------------- -%% Upgrading -%%---------------------------------------------------------------------------- - -multiple_routing_keys() -> - transform_storage( - fun ({basic_message, ExchangeName, Routing_Key, Content, - Guid, Persistent}) -> - {ok, {basic_message, ExchangeName, [Routing_Key], Content, - Guid, Persistent}}; - (_) -> {error, corrupt_message} - end), - ok. - - -%% Assumes message store is not running -transform_storage(TransformFun) -> - transform_store(?PERSISTENT_MSG_STORE, TransformFun), - transform_store(?TRANSIENT_MSG_STORE, TransformFun). - -transform_store(Store, TransformFun) -> - rabbit_msg_store:force_recovery(rabbit_mnesia:dir(), Store), - rabbit_msg_store:transform_dir(rabbit_mnesia:dir(), Store, TransformFun). diff --git a/src/rabbit_vhost.erl b/src/rabbit_vhost.erl deleted file mode 100644 index efebef06..00000000 --- a/src/rabbit_vhost.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_vhost). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --export([add/1, delete/1, exists/1, list/0, with/2]). - --ifdef(use_specs). - --spec(add/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(delete/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(exists/1 :: (rabbit_types:vhost()) -> boolean()). --spec(list/0 :: () -> [rabbit_types:vhost()]). --spec(with/2 :: (rabbit_types:vhost(), rabbit_misc:thunk(A)) -> A). - --endif. - -%%---------------------------------------------------------------------------- - -add(VHostPath) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_vhost, VHostPath}) of - [] -> ok = mnesia:write(rabbit_vhost, - #vhost{virtual_host = VHostPath}, - write); - [_] -> mnesia:abort({vhost_already_exists, VHostPath}) - end - end, - fun (ok, true) -> - ok; - (ok, false) -> - [rabbit_exchange:declare( - rabbit_misc:r(VHostPath, exchange, Name), - Type, true, false, false, []) || - {Name,Type} <- - [{<<"">>, direct}, - {<<"amq.direct">>, direct}, - {<<"amq.topic">>, topic}, - {<<"amq.match">>, headers}, %% per 0-9-1 pdf - {<<"amq.headers">>, headers}, %% per 0-9-1 xml - {<<"amq.fanout">>, fanout}]], - ok - end), - rabbit_log:info("Added vhost ~p~n", [VHostPath]), - R. - -delete(VHostPath) -> - %% FIXME: We are forced to delete the queues and exchanges outside - %% the TX below. Queue deletion involves sending messages to the queue - %% process, which in turn results in further mnesia actions and - %% eventually the termination of that process. Exchange deletion causes - %% notifications which must be sent outside the TX - [{ok,_} = rabbit_amqqueue:delete(Q, false, false) || - Q <- rabbit_amqqueue:list(VHostPath)], - [ok = rabbit_exchange:delete(Name, false) || - #exchange{name = Name} <- rabbit_exchange:list(VHostPath)], - R = rabbit_misc:execute_mnesia_transaction( - with(VHostPath, fun () -> - ok = internal_delete(VHostPath) - end)), - rabbit_log:info("Deleted vhost ~p~n", [VHostPath]), - R. - -internal_delete(VHostPath) -> - lists:foreach( - fun ({Username, _, _, _}) -> - ok = rabbit_auth_backend_internal:clear_permissions(Username, - VHostPath) - end, - rabbit_auth_backend_internal:list_vhost_permissions(VHostPath)), - ok = mnesia:delete({rabbit_vhost, VHostPath}), - ok. - -exists(VHostPath) -> - mnesia:dirty_read({rabbit_vhost, VHostPath}) /= []. - -list() -> - mnesia:dirty_all_keys(rabbit_vhost). - -with(VHostPath, Thunk) -> - fun () -> - case mnesia:read({rabbit_vhost, VHostPath}) of - [] -> - mnesia:abort({no_such_vhost, VHostPath}); - [_V] -> - Thunk() - end - end. diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl deleted file mode 100644 index eba86a55..00000000 --- a/src/rabbit_writer.erl +++ /dev/null @@ -1,249 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_writer). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([start/5, start_link/5, mainloop/2, mainloop1/2]). --export([send_command/2, send_command/3, - send_command_sync/2, send_command_sync/3, - send_command_and_notify/4, send_command_and_notify/5]). --export([internal_send_command/4, internal_send_command/6]). - --record(wstate, {sock, channel, frame_max, protocol}). - --define(HIBERNATE_AFTER, 5000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(start_link/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(send_command/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_sync/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command_sync/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_and_notify/4 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record()) - -> 'ok'). --spec(send_command_and_notify/5 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record(), - rabbit_types:content()) - -> 'ok'). --spec(internal_send_command/4 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:protocol()) - -> 'ok'). --spec(internal_send_command/6 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -start_link(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn_link(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -mainloop(ReaderPid, State) -> - try - mainloop1(ReaderPid, State) - catch - exit:Error -> ReaderPid ! {channel_exit, #wstate.channel, Error} - end, - done. - -mainloop1(ReaderPid, State) -> - receive - Message -> ?MODULE:mainloop1(ReaderPid, handle_message(Message, State)) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, mainloop, [ReaderPid, State]) - end. - -handle_message({send_command, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - State; -handle_message({send_command, MethodRecord, Content}, State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord}}, State) -> - ok = internal_send_command_async(MethodRecord, State), - gen_server:reply(From, ok), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord, Content}}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - gen_server:reply(From, ok), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord, Content}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({inet_reply, _, ok}, State) -> - State; -handle_message({inet_reply, _, Status}, _State) -> - exit({writer, send_failed, Status}); -handle_message(Message, _State) -> - exit({writer, message_not_understood, Message}). - -%--------------------------------------------------------------------------- - -send_command(W, MethodRecord) -> - W ! {send_command, MethodRecord}, - ok. - -send_command(W, MethodRecord, Content) -> - W ! {send_command, MethodRecord, Content}, - ok. - -send_command_sync(W, MethodRecord) -> - call(W, {send_command_sync, MethodRecord}). - -send_command_sync(W, MethodRecord, Content) -> - call(W, {send_command_sync, MethodRecord, Content}). - -send_command_and_notify(W, Q, ChPid, MethodRecord) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord}, - ok. - -send_command_and_notify(W, Q, ChPid, MethodRecord, Content) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord, Content}, - ok. - -%--------------------------------------------------------------------------- - -call(Pid, Msg) -> - {ok, Res} = gen:call(Pid, '$gen_call', Msg, infinity), - Res. - -%--------------------------------------------------------------------------- - -assemble_frame(Channel, MethodRecord, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, none), - rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol). - -assemble_frames(Channel, MethodRecord, Content, FrameMax, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, Content), - MethodName = rabbit_misc:method_record_type(MethodRecord), - true = Protocol:method_has_content(MethodName), % assertion - MethodFrame = rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol), - ContentFrames = rabbit_binary_generator:build_simple_content_frames( - Channel, Content, FrameMax, Protocol), - [MethodFrame | ContentFrames]. - -%% We optimise delivery of small messages. Content-bearing methods -%% require at least three frames. Small messages always fit into -%% that. We hand their frames to the Erlang network functions in one -%% go, which may lead to somewhat more efficient processing in the -%% runtime and a greater chance of coalescing into fewer TCP packets. -%% -%% By contrast, for larger messages, split across many frames, we want -%% to allow interleaving of frames on different channels. Hence we -%% hand them to the Erlang network functions one frame at a time. -send_frames(Fun, Sock, Frames) when length(Frames) =< 3 -> - Fun(Sock, Frames); -send_frames(Fun, Sock, Frames) -> - lists:foldl(fun (Frame, ok) -> Fun(Sock, Frame); - (_Frame, Other) -> Other - end, ok, Frames). - -tcp_send(Sock, Data) -> - rabbit_misc:throw_on_error(inet_error, - fun () -> rabbit_net:send(Sock, Data) end). - -internal_send_command(Sock, Channel, MethodRecord, Protocol) -> - ok = tcp_send(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command(Sock, Channel, MethodRecord, Content, FrameMax, - Protocol) -> - ok = send_frames(fun tcp_send/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -%% gen_tcp:send/2 does a selective receive of {inet_reply, Sock, -%% Status} to obtain the result. That is bad when it is called from -%% the writer since it requires scanning of the writers possibly quite -%% large message queue. -%% -%% So instead we lift the code from prim_inet:send/2, which is what -%% gen_tcp:send/2 calls, do the first half here and then just process -%% the result code in handle_message/2 as and when it arrives. -%% -%% This means we may end up happily sending data down a closed/broken -%% socket, but that's ok since a) data in the buffers will be lost in -%% any case (so qualitatively we are no worse off than if we used -%% gen_tcp:send/2), and b) we do detect the changed socket status -%% eventually, i.e. when we get round to handling the result code. -%% -%% Also note that the port has bounded buffers and port_command blocks -%% when these are full. So the fact that we process the result -%% asynchronously does not impact flow control. -internal_send_command_async(MethodRecord, - #wstate{sock = Sock, - channel = Channel, - protocol = Protocol}) -> - ok = port_cmd(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command_async(MethodRecord, Content, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}) -> - ok = send_frames(fun port_cmd/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -port_cmd(Sock, Data) -> - true = try rabbit_net:port_command(Sock, Data) - catch error:Error -> exit({writer, send_failed, Error}) - end, - ok. diff --git a/src/supervisor2.erl b/src/supervisor2.erl deleted file mode 100644 index 1a240856..00000000 --- a/src/supervisor2.erl +++ /dev/null @@ -1,1015 +0,0 @@ -%% This file is a copy of supervisor.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is supervisor2 -%% -%% 2) there is a new strategy called -%% simple_one_for_one_terminate. This is exactly the same as for -%% simple_one_for_one, except that children *are* explicitly -%% terminated as per the shutdown component of the child_spec. -%% -%% 3) child specifications can contain, as the restart type, a tuple -%% {permanent, Delay} | {transient, Delay} where Delay >= 0. The -%% delay, in seconds, indicates what should happen if a child, upon -%% being restarted, exceeds the MaxT and MaxR parameters. Thus, if -%% a child exits, it is restarted as normal. If it exits -%% sufficiently quickly and often to exceed the boundaries set by -%% the MaxT and MaxR parameters, and a Delay is specified, then -%% rather than stopping the supervisor, the supervisor instead -%% continues and tries to start up the child again, Delay seconds -%% later. -%% -%% Note that you can never restart more frequently than the MaxT -%% and MaxR parameters allow: i.e. you must wait until *both* the -%% Delay has passed *and* the MaxT and MaxR parameters allow the -%% child to be restarted. -%% -%% Also note that the Delay is a *minimum*. There is no guarantee -%% that the child will be restarted within that time, especially if -%% other processes are dying and being restarted at the same time - -%% essentially we have to wait for the delay to have passed and for -%% the MaxT and MaxR parameters to permit the child to be -%% restarted. This may require waiting for longer than Delay. -%% -%% 4) Added an 'intrinsic' restart type. Like the transient type, this -%% type means the child should only be restarted if the child exits -%% abnormally. Unlike the transient type, if the child exits -%% normally, the supervisor itself also exits normally. If the -%% child is a supervisor and it exits normally (i.e. with reason of -%% 'shutdown') then the child's parent also exits normally. -%% -%% All modifications are (C) 2010-2011 VMware, Inc. -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(supervisor2). - --behaviour(gen_server). - -%% External exports --export([start_link/2,start_link/3, - start_child/2, restart_child/2, - delete_child/2, terminate_child/2, - which_children/1, find_child/2, - check_childspecs/1]). - --export([behaviour_info/1]). - -%% Internal exports --export([init/1, handle_call/3, handle_info/2, terminate/2, code_change/3]). --export([handle_cast/2]). --export([delayed_restart/2]). - --define(DICT, dict). - --record(state, {name, - strategy, - children = [], - dynamics = ?DICT:new(), - intensity, - period, - restarts = [], - module, - args}). - --record(child, {pid = undefined, % pid is undefined when child is not running - name, - mfa, - restart_type, - shutdown, - child_type, - modules = []}). - --define(is_simple(State), State#state.strategy =:= simple_one_for_one orelse - State#state.strategy =:= simple_one_for_one_terminate). --define(is_terminate_simple(State), - State#state.strategy =:= simple_one_for_one_terminate). - -behaviour_info(callbacks) -> - [{init,1}]; -behaviour_info(_Other) -> - undefined. - -%%% --------------------------------------------------- -%%% This is a general process supervisor built upon gen_server.erl. -%%% Servers/processes should/could also be built using gen_server.erl. -%%% SupName = {local, atom()} | {global, atom()}. -%%% --------------------------------------------------- -start_link(Mod, Args) -> - gen_server:start_link(?MODULE, {self, Mod, Args}, []). - -start_link(SupName, Mod, Args) -> - gen_server:start_link(SupName, ?MODULE, {SupName, Mod, Args}, []). - -%%% --------------------------------------------------- -%%% Interface functions. -%%% --------------------------------------------------- -start_child(Supervisor, ChildSpec) -> - call(Supervisor, {start_child, ChildSpec}). - -restart_child(Supervisor, Name) -> - call(Supervisor, {restart_child, Name}). - -delete_child(Supervisor, Name) -> - call(Supervisor, {delete_child, Name}). - -%%----------------------------------------------------------------- -%% Func: terminate_child/2 -%% Returns: ok | {error, Reason} -%% Note that the child is *always* terminated in some -%% way (maybe killed). -%%----------------------------------------------------------------- -terminate_child(Supervisor, Name) -> - call(Supervisor, {terminate_child, Name}). - -which_children(Supervisor) -> - call(Supervisor, which_children). - -find_child(Supervisor, Name) -> - [Pid || {Name1, Pid, _Type, _Modules} <- which_children(Supervisor), - Name1 =:= Name]. - -call(Supervisor, Req) -> - gen_server:call(Supervisor, Req, infinity). - -check_childspecs(ChildSpecs) when is_list(ChildSpecs) -> - case check_startspec(ChildSpecs) of - {ok, _} -> ok; - Error -> {error, Error} - end; -check_childspecs(X) -> {error, {badarg, X}}. - -delayed_restart(Supervisor, RestartDetails) -> - gen_server:cast(Supervisor, {delayed_restart, RestartDetails}). - -%%% --------------------------------------------------- -%%% -%%% Initialize the supervisor. -%%% -%%% --------------------------------------------------- -init({SupName, Mod, Args}) -> - process_flag(trap_exit, true), - case Mod:init(Args) of - {ok, {SupFlags, StartSpec}} -> - case init_state(SupName, SupFlags, Mod, Args) of - {ok, State} when ?is_simple(State) -> - init_dynamic(State, StartSpec); - {ok, State} -> - init_children(State, StartSpec); - Error -> - {stop, {supervisor_data, Error}} - end; - ignore -> - ignore; - Error -> - {stop, {bad_return, {Mod, init, Error}}} - end. - -init_children(State, StartSpec) -> - SupName = State#state.name, - case check_startspec(StartSpec) of - {ok, Children} -> - case start_children(Children, SupName) of - {ok, NChildren} -> - {ok, State#state{children = NChildren}}; - {error, NChildren} -> - terminate_children(NChildren, SupName), - {stop, shutdown} - end; - Error -> - {stop, {start_spec, Error}} - end. - -init_dynamic(State, [StartSpec]) -> - case check_startspec([StartSpec]) of - {ok, Children} -> - {ok, State#state{children = Children}}; - Error -> - {stop, {start_spec, Error}} - end; -init_dynamic(_State, StartSpec) -> - {stop, {bad_start_spec, StartSpec}}. - -%%----------------------------------------------------------------- -%% Func: start_children/2 -%% Args: Children = [#child] in start order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Purpose: Start all children. The new list contains #child's -%% with pids. -%% Returns: {ok, NChildren} | {error, NChildren} -%% NChildren = [#child] in termination order (reversed -%% start order) -%%----------------------------------------------------------------- -start_children(Children, SupName) -> start_children(Children, [], SupName). - -start_children([Child|Chs], NChildren, SupName) -> - case do_start_child(SupName, Child) of - {ok, Pid} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {ok, Pid, _Extra} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {error, Reason} -> - report_error(start_error, Reason, Child, SupName), - {error, lists:reverse(Chs) ++ [Child | NChildren]} - end; -start_children([], NChildren, _SupName) -> - {ok, NChildren}. - -do_start_child(SupName, Child) -> - #child{mfa = {M, F, A}} = Child, - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, What} -> {error, What}; - What -> {error, What} - end. - -do_start_child_i(M, F, A) -> - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, Error} -> - {error, Error}; - What -> - {error, What} - end. - - -%%% --------------------------------------------------- -%%% -%%% Callback functions. -%%% -%%% --------------------------------------------------- -handle_call({start_child, EArgs}, _From, State) when ?is_simple(State) -> - #child{mfa = {M, F, A}} = hd(State#state.children), - Args = A ++ EArgs, - case do_start_child_i(M, F, Args) of - {ok, Pid} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid, Extra}, NState}; - What -> - {reply, What, State} - end; - -%%% The requests terminate_child, delete_child and restart_child are -%%% invalid for simple_one_for_one and simple_one_for_one_terminate -%%% supervisors. -handle_call({_Req, _Data}, _From, State) when ?is_simple(State) -> - {reply, {error, State#state.strategy}, State}; - -handle_call({start_child, ChildSpec}, _From, State) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - {Resp, NState} = handle_start_child(Child, State), - {reply, Resp, NState}; - What -> - {reply, {error, What}, State} - end; - -handle_call({restart_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid, Extra}, NState}; - Error -> - {reply, Error, State} - end; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({delete_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - NState = remove_child(Child, State), - {reply, ok, NState}; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({terminate_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} -> - NChild = do_terminate(Child, State#state.name), - {reply, ok, replace_child(NChild, State)}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call(which_children, _From, State) when ?is_simple(State) -> - [#child{child_type = CT, modules = Mods}] = State#state.children, - Reply = lists:map(fun ({Pid, _}) -> {undefined, Pid, CT, Mods} end, - ?DICT:to_list(State#state.dynamics)), - {reply, Reply, State}; - -handle_call(which_children, _From, State) -> - Resp = - lists:map(fun (#child{pid = Pid, name = Name, - child_type = ChildType, modules = Mods}) -> - {Name, Pid, ChildType, Mods} - end, - State#state.children), - {reply, Resp, State}. - - -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) - when ?is_simple(State) -> - {ok, NState} = do_restart(RestartType, Reason, Child, State), - {noreply, NState}; -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) -> - case get_child(Child#child.name, State) of - {value, Child1} -> - {ok, NState} = do_restart(RestartType, Reason, Child1, State), - {noreply, NState}; - _ -> - {noreply, State} - end; - -%%% Hopefully cause a function-clause as there is no API function -%%% that utilizes cast. -handle_cast(null, State) -> - error_logger:error_msg("ERROR: Supervisor received cast-message 'null'~n", - []), - - {noreply, State}. - -%% -%% Take care of terminated children. -%% -handle_info({'EXIT', Pid, Reason}, State) -> - case restart_child(Pid, Reason, State) of - {ok, State1} -> - {noreply, State1}; - {shutdown, State1} -> - {stop, shutdown, State1} - end; - -handle_info(Msg, State) -> - error_logger:error_msg("Supervisor received unexpected message: ~p~n", - [Msg]), - {noreply, State}. -%% -%% Terminate this server. -%% -terminate(_Reason, State) when ?is_terminate_simple(State) -> - terminate_simple_children( - hd(State#state.children), State#state.dynamics, State#state.name), - ok; -terminate(_Reason, State) -> - terminate_children(State#state.children, State#state.name), - ok. - -%% -%% Change code for the supervisor. -%% Call the new call-back module and fetch the new start specification. -%% Combine the new spec. with the old. If the new start spec. is -%% not valid the code change will not succeed. -%% Use the old Args as argument to Module:init/1. -%% NOTE: This requires that the init function of the call-back module -%% does not have any side effects. -%% -code_change(_, State, _) -> - case (State#state.module):init(State#state.args) of - {ok, {SupFlags, StartSpec}} -> - case catch check_flags(SupFlags) of - ok -> - {Strategy, MaxIntensity, Period} = SupFlags, - update_childspec(State#state{strategy = Strategy, - intensity = MaxIntensity, - period = Period}, - StartSpec); - Error -> - {error, Error} - end; - ignore -> - {ok, State}; - Error -> - Error - end. - -check_flags({Strategy, MaxIntensity, Period}) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - ok; -check_flags(What) -> - {bad_flags, What}. - -update_childspec(State, StartSpec) when ?is_simple(State) -> - case check_startspec(StartSpec) of - {ok, [Child]} -> - {ok, State#state{children = [Child]}}; - Error -> - {error, Error} - end; - -update_childspec(State, StartSpec) -> - case check_startspec(StartSpec) of - {ok, Children} -> - OldC = State#state.children, % In reverse start order ! - NewC = update_childspec1(OldC, Children, []), - {ok, State#state{children = NewC}}; - Error -> - {error, Error} - end. - -update_childspec1([Child|OldC], Children, KeepOld) -> - case update_chsp(Child, Children) of - {ok,NewChildren} -> - update_childspec1(OldC, NewChildren, KeepOld); - false -> - update_childspec1(OldC, Children, [Child|KeepOld]) - end; -update_childspec1([], Children, KeepOld) -> - % Return them in (keeped) reverse start order. - lists:reverse(Children ++ KeepOld). - -update_chsp(OldCh, Children) -> - case lists:map(fun (Ch) when OldCh#child.name =:= Ch#child.name -> - Ch#child{pid = OldCh#child.pid}; - (Ch) -> - Ch - end, - Children) of - Children -> - false; % OldCh not found in new spec. - NewC -> - {ok, NewC} - end. - -%%% --------------------------------------------------- -%%% Start a new child. -%%% --------------------------------------------------- - -handle_start_child(Child, State) -> - case get_child(Child#child.name, State) of - false -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - Children = State#state.children, - {{ok, Pid}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {ok, Pid, Extra} -> - Children = State#state.children, - {{ok, Pid, Extra}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {error, What} -> - {{error, {What, Child}}, State} - end; - {value, OldChild} when OldChild#child.pid =/= undefined -> - {{error, {already_started, OldChild#child.pid}}, State}; - {value, _OldChild} -> - {{error, already_present}, State} - end. - -%%% --------------------------------------------------- -%%% Restart. A process has terminated. -%%% Returns: {ok, #state} | {shutdown, #state} -%%% --------------------------------------------------- - -restart_child(Pid, Reason, State) when ?is_simple(State) -> - case ?DICT:find(Pid, State#state.dynamics) of - {ok, Args} -> - [Child] = State#state.children, - RestartType = Child#child.restart_type, - {M, F, _} = Child#child.mfa, - NChild = Child#child{pid = Pid, mfa = {M, F, Args}}, - do_restart(RestartType, Reason, NChild, State); - error -> - {ok, State} - end; -restart_child(Pid, Reason, State) -> - Children = State#state.children, - case lists:keysearch(Pid, #child.pid, Children) of - {value, Child} -> - RestartType = Child#child.restart_type, - do_restart(RestartType, Reason, Child, State); - _ -> - {ok, State} - end. - -do_restart({RestartType, Delay}, Reason, Child, State) -> - case restart1(Child, State) of - {ok, NState} -> - {ok, NState}; - {terminate, NState} -> - {ok, _TRef} = timer:apply_after( - trunc(Delay*1000), ?MODULE, delayed_restart, - [self(), {{RestartType, Delay}, Reason, Child}]), - {ok, state_del_child(Child, NState)} - end; -do_restart(permanent, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(intrinsic, normal, Child, State) -> - {shutdown, state_del_child(Child, State)}; -do_restart(intrinsic, shutdown, Child = #child{child_type = supervisor}, - State) -> - {shutdown, state_del_child(Child, State)}; -do_restart(_, normal, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(_, shutdown, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(Type, Reason, Child, State) when Type =:= transient orelse - Type =:= intrinsic -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(temporary, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - NState = state_del_child(Child, State), - {ok, NState}. - -restart(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart/2); - {terminate, NState} -> - report_error(shutdown, reached_max_restart_intensity, - Child, State#state.name), - {shutdown, state_del_child(Child, NState)} - end. - -restart1(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart1/2); - {terminate, _NState} -> - %% we've reached the max restart intensity, but the - %% add_restart will have added to the restarts - %% field. Given we don't want to die here, we need to go - %% back to the old restarts field otherwise we'll never - %% attempt to restart later. - {terminate, State} - end. - -restart(Strategy, Child, State, Restart) - when Strategy =:= simple_one_for_one orelse - Strategy =:= simple_one_for_one_terminate -> - #child{mfa = {M, F, A}} = Child, - Dynamics = ?DICT:erase(Child#child.pid, State#state.dynamics), - case do_start_child_i(M, F, A) of - {ok, Pid} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {ok, Pid, _Extra} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {error, Error} -> - report_error(start_error, Error, Child, State#state.name), - Restart(Child, State) - end; -restart(one_for_one, Child, State, Restart) -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {ok, Pid, _Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {error, Reason} -> - report_error(start_error, Reason, Child, State#state.name), - Restart(Child, State) - end; -restart(rest_for_one, Child, State, Restart) -> - {ChAfter, ChBefore} = split_child(Child#child.pid, State#state.children), - ChAfter2 = terminate_children(ChAfter, State#state.name), - case start_children(ChAfter2, State#state.name) of - {ok, ChAfter3} -> - {ok, State#state{children = ChAfter3 ++ ChBefore}}; - {error, ChAfter3} -> - Restart(Child, State#state{children = ChAfter3 ++ ChBefore}) - end; -restart(one_for_all, Child, State, Restart) -> - Children1 = del_child(Child#child.pid, State#state.children), - Children2 = terminate_children(Children1, State#state.name), - case start_children(Children2, State#state.name) of - {ok, NChs} -> - {ok, State#state{children = NChs}}; - {error, NChs} -> - Restart(Child, State#state{children = NChs}) - end. - -%%----------------------------------------------------------------- -%% Func: terminate_children/2 -%% Args: Children = [#child] in termination order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Returns: NChildren = [#child] in -%% startup order (reversed termination order) -%%----------------------------------------------------------------- -terminate_children(Children, SupName) -> - terminate_children(Children, SupName, []). - -terminate_children([Child | Children], SupName, Res) -> - NChild = do_terminate(Child, SupName), - terminate_children(Children, SupName, [NChild | Res]); -terminate_children([], _SupName, Res) -> - Res. - -terminate_simple_children(Child, Dynamics, SupName) -> - dict:fold(fun (Pid, _Args, _Any) -> - do_terminate(Child#child{pid = Pid}, SupName) - end, ok, Dynamics), - ok. - -do_terminate(Child, SupName) when Child#child.pid =/= undefined -> - ReportError = fun (Reason) -> - report_error(shutdown_error, Reason, Child, SupName) - end, - case shutdown(Child#child.pid, Child#child.shutdown) of - ok -> - ok; - {error, normal} -> - case Child#child.restart_type of - permanent -> ReportError(normal); - {permanent, _Delay} -> ReportError(normal); - _ -> ok - end; - {error, OtherReason} -> - ReportError(OtherReason) - end, - Child#child{pid = undefined}; -do_terminate(Child, _SupName) -> - Child. - -%%----------------------------------------------------------------- -%% Shutdowns a child. We must check the EXIT value -%% of the child, because it might have died with another reason than -%% the wanted. In that case we want to report the error. We put a -%% monitor on the child an check for the 'DOWN' message instead of -%% checking for the 'EXIT' message, because if we check the 'EXIT' -%% message a "naughty" child, who does unlink(Sup), could hang the -%% supervisor. -%% Returns: ok | {error, OtherReason} (this should be reported) -%%----------------------------------------------------------------- -shutdown(Pid, brutal_kill) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, kill), - receive - {'DOWN', _MRef, process, Pid, killed} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end; - {error, Reason} -> - {error, Reason} - end; - -shutdown(Pid, Time) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, shutdown), %% Try to shutdown gracefully - receive - {'DOWN', _MRef, process, Pid, shutdown} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - after Time -> - exit(Pid, kill), %% Force termination. - receive - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end - end; - {error, Reason} -> - {error, Reason} - end. - -%% Help function to shutdown/2 switches from link to monitor approach -monitor_child(Pid) -> - - %% Do the monitor operation first so that if the child dies - %% before the monitoring is done causing a 'DOWN'-message with - %% reason noproc, we will get the real reason in the 'EXIT'-message - %% unless a naughty child has already done unlink... - erlang:monitor(process, Pid), - unlink(Pid), - - receive - %% If the child dies before the unlik we must empty - %% the mail-box of the 'EXIT'-message and the 'DOWN'-message. - {'EXIT', Pid, Reason} -> - receive - {'DOWN', _, process, Pid, _} -> - {error, Reason} - end - after 0 -> - %% If a naughty child did unlink and the child dies before - %% monitor the result will be that shutdown/2 receives a - %% 'DOWN'-message with reason noproc. - %% If the child should die after the unlink there - %% will be a 'DOWN'-message with a correct reason - %% that will be handled in shutdown/2. - ok - end. - - -%%----------------------------------------------------------------- -%% Child/State manipulating functions. -%%----------------------------------------------------------------- -state_del_child(#child{pid = Pid}, State) when ?is_simple(State) -> - NDynamics = ?DICT:erase(Pid, State#state.dynamics), - State#state{dynamics = NDynamics}; -state_del_child(Child, State) -> - NChildren = del_child(Child#child.name, State#state.children), - State#state{children = NChildren}. - -del_child(Name, [Ch|Chs]) when Ch#child.name =:= Name -> - [Ch#child{pid = undefined} | Chs]; -del_child(Pid, [Ch|Chs]) when Ch#child.pid =:= Pid -> - [Ch#child{pid = undefined} | Chs]; -del_child(Name, [Ch|Chs]) -> - [Ch|del_child(Name, Chs)]; -del_child(_, []) -> - []. - -%% Chs = [S4, S3, Ch, S1, S0] -%% Ret: {[S4, S3, Ch], [S1, S0]} -split_child(Name, Chs) -> - split_child(Name, Chs, []). - -split_child(Name, [Ch|Chs], After) when Ch#child.name =:= Name -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Pid, [Ch|Chs], After) when Ch#child.pid =:= Pid -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Name, [Ch|Chs], After) -> - split_child(Name, Chs, [Ch | After]); -split_child(_, [], After) -> - {lists:reverse(After), []}. - -get_child(Name, State) -> - lists:keysearch(Name, #child.name, State#state.children). -replace_child(Child, State) -> - Chs = do_replace_child(Child, State#state.children), - State#state{children = Chs}. - -do_replace_child(Child, [Ch|Chs]) when Ch#child.name =:= Child#child.name -> - [Child | Chs]; -do_replace_child(Child, [Ch|Chs]) -> - [Ch|do_replace_child(Child, Chs)]. - -remove_child(Child, State) -> - Chs = lists:keydelete(Child#child.name, #child.name, State#state.children), - State#state{children = Chs}. - -%%----------------------------------------------------------------- -%% Func: init_state/4 -%% Args: SupName = {local, atom()} | {global, atom()} | self -%% Type = {Strategy, MaxIntensity, Period} -%% Strategy = one_for_one | one_for_all | simple_one_for_one | -%% rest_for_one -%% MaxIntensity = integer() -%% Period = integer() -%% Mod :== atom() -%% Arsg :== term() -%% Purpose: Check that Type is of correct type (!) -%% Returns: {ok, #state} | Error -%%----------------------------------------------------------------- -init_state(SupName, Type, Mod, Args) -> - case catch init_state1(SupName, Type, Mod, Args) of - {ok, State} -> - {ok, State}; - Error -> - Error - end. - -init_state1(SupName, {Strategy, MaxIntensity, Period}, Mod, Args) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - {ok, #state{name = supname(SupName,Mod), - strategy = Strategy, - intensity = MaxIntensity, - period = Period, - module = Mod, - args = Args}}; -init_state1(_SupName, Type, _, _) -> - {invalid_type, Type}. - -validStrategy(simple_one_for_one_terminate) -> true; -validStrategy(simple_one_for_one) -> true; -validStrategy(one_for_one) -> true; -validStrategy(one_for_all) -> true; -validStrategy(rest_for_one) -> true; -validStrategy(What) -> throw({invalid_strategy, What}). - -validIntensity(Max) when is_integer(Max), - Max >= 0 -> true; -validIntensity(What) -> throw({invalid_intensity, What}). - -validPeriod(Period) when is_integer(Period), - Period > 0 -> true; -validPeriod(What) -> throw({invalid_period, What}). - -supname(self,Mod) -> {self(),Mod}; -supname(N,_) -> N. - -%%% ------------------------------------------------------ -%%% Check that the children start specification is valid. -%%% Shall be a six (6) tuple -%%% {Name, Func, RestartType, Shutdown, ChildType, Modules} -%%% where Name is an atom -%%% Func is {Mod, Fun, Args} == {atom, atom, list} -%%% RestartType is permanent | temporary | transient | -%%% intrinsic | {permanent, Delay} | -%%% {transient, Delay} where Delay >= 0 -%%% Shutdown = integer() | infinity | brutal_kill -%%% ChildType = supervisor | worker -%%% Modules = [atom()] | dynamic -%%% Returns: {ok, [#child]} | Error -%%% ------------------------------------------------------ - -check_startspec(Children) -> check_startspec(Children, []). - -check_startspec([ChildSpec|T], Res) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - case lists:keymember(Child#child.name, #child.name, Res) of - true -> {duplicate_child_name, Child#child.name}; - false -> check_startspec(T, [Child | Res]) - end; - Error -> Error - end; -check_startspec([], Res) -> - {ok, lists:reverse(Res)}. - -check_childspec({Name, Func, RestartType, Shutdown, ChildType, Mods}) -> - catch check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods); -check_childspec(X) -> {invalid_child_spec, X}. - -check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods) -> - validName(Name), - validFunc(Func), - validRestartType(RestartType), - validChildType(ChildType), - validShutdown(Shutdown, ChildType), - validMods(Mods), - {ok, #child{name = Name, mfa = Func, restart_type = RestartType, - shutdown = Shutdown, child_type = ChildType, modules = Mods}}. - -validChildType(supervisor) -> true; -validChildType(worker) -> true; -validChildType(What) -> throw({invalid_child_type, What}). - -validName(_Name) -> true. - -validFunc({M, F, A}) when is_atom(M), - is_atom(F), - is_list(A) -> true; -validFunc(Func) -> throw({invalid_mfa, Func}). - -validRestartType(permanent) -> true; -validRestartType(temporary) -> true; -validRestartType(transient) -> true; -validRestartType(intrinsic) -> true; -validRestartType({permanent, Delay}) -> validDelay(Delay); -validRestartType({transient, Delay}) -> validDelay(Delay); -validRestartType(RestartType) -> throw({invalid_restart_type, - RestartType}). - -validDelay(Delay) when is_number(Delay), - Delay >= 0 -> true; -validDelay(What) -> throw({invalid_delay, What}). - -validShutdown(Shutdown, _) - when is_integer(Shutdown), Shutdown > 0 -> true; -validShutdown(infinity, supervisor) -> true; -validShutdown(brutal_kill, _) -> true; -validShutdown(Shutdown, _) -> throw({invalid_shutdown, Shutdown}). - -validMods(dynamic) -> true; -validMods(Mods) when is_list(Mods) -> - lists:foreach(fun (Mod) -> - if - is_atom(Mod) -> ok; - true -> throw({invalid_module, Mod}) - end - end, - Mods); -validMods(Mods) -> throw({invalid_modules, Mods}). - -%%% ------------------------------------------------------ -%%% Add a new restart and calculate if the max restart -%%% intensity has been reached (in that case the supervisor -%%% shall terminate). -%%% All restarts accured inside the period amount of seconds -%%% are kept in the #state.restarts list. -%%% Returns: {ok, State'} | {terminate, State'} -%%% ------------------------------------------------------ - -add_restart(State) -> - I = State#state.intensity, - P = State#state.period, - R = State#state.restarts, - Now = erlang:now(), - R1 = add_restart([Now|R], Now, P), - State1 = State#state{restarts = R1}, - case length(R1) of - CurI when CurI =< I -> - {ok, State1}; - _ -> - {terminate, State1} - end. - -add_restart([R|Restarts], Now, Period) -> - case inPeriod(R, Now, Period) of - true -> - [R|add_restart(Restarts, Now, Period)]; - _ -> - [] - end; -add_restart([], _, _) -> - []. - -inPeriod(Time, Now, Period) -> - case difference(Time, Now) of - T when T > Period -> - false; - _ -> - true - end. - -%% -%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored) -%% Calculate the time elapsed in seconds between two timestamps. -%% If MegaSecs is equal just subtract Secs. -%% Else calculate the Mega difference and add the Secs difference, -%% note that Secs difference can be negative, e.g. -%% {827, 999999, 676} diff {828, 1, 653753} == > 2 secs. -%% -difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM -> - ((CurM - TimeM) * 1000000) + (CurS - TimeS); -difference({_, TimeS, _}, {_, CurS, _}) -> - CurS - TimeS. - -%%% ------------------------------------------------------ -%%% Error and progress reporting. -%%% ------------------------------------------------------ - -report_error(Error, Reason, Child, SupName) -> - ErrorMsg = [{supervisor, SupName}, - {errorContext, Error}, - {reason, Reason}, - {offender, extract_child(Child)}], - error_logger:error_report(supervisor_report, ErrorMsg). - - -extract_child(Child) -> - [{pid, Child#child.pid}, - {name, Child#child.name}, - {mfa, Child#child.mfa}, - {restart_type, Child#child.restart_type}, - {shutdown, Child#child.shutdown}, - {child_type, Child#child.child_type}]. - -report_progress(Child, SupName) -> - Progress = [{supervisor, SupName}, - {started, extract_child(Child)}], - error_logger:info_report(progress, Progress). diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl deleted file mode 100644 index 0d50683d..00000000 --- a/src/tcp_acceptor.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor). - --behaviour(gen_server). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {callback, sock, ref}). - -%%-------------------------------------------------------------------- - -start_link(Callback, LSock) -> - gen_server:start_link(?MODULE, {Callback, LSock}, []). - -%%-------------------------------------------------------------------- - -init({Callback, LSock}) -> - gen_server:cast(self(), accept), - {ok, #state{callback=Callback, sock=LSock}}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(accept, State) -> - ok = file_handle_cache:obtain(), - accept(State); - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({inet_async, LSock, Ref, {ok, Sock}}, - State = #state{callback={M,F,A}, sock=LSock, ref=Ref}) -> - - %% patch up the socket so it looks like one we got from - %% gen_tcp:accept/1 - {ok, Mod} = inet_db:lookup_socket(LSock), - inet_db:register_socket(Sock, Mod), - - try - %% report - {Address, Port} = inet_op(fun () -> inet:sockname(LSock) end), - {PeerAddress, PeerPort} = inet_op(fun () -> inet:peername(Sock) end), - error_logger:info_msg("accepted TCP connection on ~s:~p from ~s:~p~n", - [rabbit_misc:ntoab(Address), Port, - rabbit_misc:ntoab(PeerAddress), PeerPort]), - %% In the event that somebody floods us with connections we can spew - %% the above message at error_logger faster than it can keep up. - %% So error_logger's mailbox grows unbounded until we eat all the - %% memory available and crash. So here's a meaningless synchronous call - %% to the underlying gen_event mechanism - when it returns the mailbox - %% is drained. - gen_event:which_handlers(error_logger), - %% handle - file_handle_cache:transfer(apply(M, F, A ++ [Sock])), - ok = file_handle_cache:obtain() - catch {inet_error, Reason} -> - gen_tcp:close(Sock), - error_logger:error_msg("unable to accept TCP connection: ~p~n", - [Reason]) - end, - - %% accept more - accept(State); - -handle_info({inet_async, LSock, Ref, {error, closed}}, - State=#state{sock=LSock, ref=Ref}) -> - %% It would be wrong to attempt to restart the acceptor when we - %% know this will fail. - {stop, normal, State}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -accept(State = #state{sock=LSock}) -> - case prim_inet:async_accept(LSock, -1) of - {ok, Ref} -> {noreply, State#state{ref=Ref}}; - Error -> {stop, {cannot_accept, Error}, State} - end. diff --git a/src/tcp_acceptor_sup.erl b/src/tcp_acceptor_sup.erl deleted file mode 100644 index bf0eacd1..00000000 --- a/src/tcp_acceptor_sup.erl +++ /dev/null @@ -1,31 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - -start_link(Name, Callback) -> - supervisor:start_link({local,Name}, ?MODULE, Callback). - -init(Callback) -> - {ok, {{simple_one_for_one, 10, 10}, - [{tcp_acceptor, {tcp_acceptor, start_link, [Callback]}, - transient, brutal_kill, worker, [tcp_acceptor]}]}}. diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl deleted file mode 100644 index cd646969..00000000 --- a/src/tcp_listener.erl +++ /dev/null @@ -1,84 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener). - --behaviour(gen_server). - --export([start_link/8]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {sock, on_startup, on_shutdown, label}). - -%%-------------------------------------------------------------------- - -start_link(IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label) -> - gen_server:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label}, []). - -%%-------------------------------------------------------------------- - -init({IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - {M,F,A} = OnStartup, OnShutdown, Label}) -> - process_flag(trap_exit, true), - case gen_tcp:listen(Port, SocketOpts ++ [{ip, IPAddress}, - {active, false}]) of - {ok, LSock} -> - lists:foreach(fun (_) -> - {ok, _APid} = supervisor:start_child( - AcceptorSup, [LSock]) - end, - lists:duplicate(ConcurrentAcceptorCount, dummy)), - {ok, {LIPAddress, LPort}} = inet:sockname(LSock), - error_logger:info_msg( - "started ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(LIPAddress), LPort]), - apply(M, F, A ++ [IPAddress, Port]), - {ok, #state{sock = LSock, - on_startup = OnStartup, on_shutdown = OnShutdown, - label = Label}}; - {error, Reason} -> - error_logger:error_msg( - "failed to start ~s on ~s:~p - ~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port, Reason]), - {stop, {cannot_listen, IPAddress, Port, Reason}} - end. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state{sock=LSock, on_shutdown = {M,F,A}, label=Label}) -> - {ok, {IPAddress, Port}} = inet:sockname(LSock), - gen_tcp:close(LSock), - error_logger:info_msg("stopped ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port]), - apply(M, F, A ++ [IPAddress, Port]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl deleted file mode 100644 index 58c2f30c..00000000 --- a/src/tcp_listener_sup.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener_sup). - --behaviour(supervisor). - --export([start_link/7, start_link/8]). - --export([init/1]). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, Label) -> - start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, 1, Label). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label) -> - supervisor:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}). - -init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}) -> - %% This is gross. The tcp_listener needs to know about the - %% tcp_acceptor_sup, and the only way I can think of accomplishing - %% that without jumping through hoops is to register the - %% tcp_acceptor_sup. - Name = rabbit_misc:tcp_name(tcp_acceptor_sup, IPAddress, Port), - {ok, {{one_for_all, 10, 10}, - [{tcp_acceptor_sup, {tcp_acceptor_sup, start_link, - [Name, AcceptCallback]}, - transient, infinity, supervisor, [tcp_acceptor_sup]}, - {tcp_listener, {tcp_listener, start_link, - [IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, Name, - OnStartup, OnShutdown, Label]}, - transient, 16#ffffffff, worker, [tcp_listener]}]}}. diff --git a/src/test_sup.erl b/src/test_sup.erl deleted file mode 100644 index b4df1fd0..00000000 --- a/src/test_sup.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(test_sup). - --behaviour(supervisor2). - --export([test_supervisor_delayed_restart/0, - init/1, start_child/0]). - -test_supervisor_delayed_restart() -> - passed = with_sup(simple_one_for_one_terminate, - fun (SupPid) -> - {ok, _ChildPid} = - supervisor2:start_child(SupPid, []), - test_supervisor_delayed_restart(SupPid) - end), - passed = with_sup(one_for_one, fun test_supervisor_delayed_restart/1). - -test_supervisor_delayed_restart(SupPid) -> - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(10), - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(10), - timeout = ping_child(SupPid), - timer:sleep(1010), - ok = ping_child(SupPid), - passed. - -with_sup(RestartStrategy, Fun) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, [RestartStrategy]), - Res = Fun(SupPid), - exit(SupPid, shutdown), - rabbit_misc:unlink_and_capture_exit(SupPid), - Res. - -init([RestartStrategy]) -> - {ok, {{RestartStrategy, 1, 1}, - [{test, {test_sup, start_child, []}, {permanent, 1}, - 16#ffffffff, worker, [test_sup]}]}}. - -start_child() -> - {ok, proc_lib:spawn_link(fun run_child/0)}. - -ping_child(SupPid) -> - Ref = make_ref(), - with_child_pid(SupPid, fun(ChildPid) -> ChildPid ! {ping, Ref, self()} end), - receive {pong, Ref} -> ok - after 1000 -> timeout - end. - -exit_child(SupPid) -> - with_child_pid(SupPid, fun(ChildPid) -> exit(ChildPid, abnormal) end), - ok. - -with_child_pid(SupPid, Fun) -> - case supervisor2:which_children(SupPid) of - [{_Id, undefined, worker, [test_sup]}] -> ok; - [{_Id, ChildPid, worker, [test_sup]}] -> Fun(ChildPid); - [] -> ok - end. - -run_child() -> - receive {ping, Ref, Pid} -> Pid ! {pong, Ref}, - run_child() - end. diff --git a/src/uri_parser.erl b/src/uri_parser.erl deleted file mode 100644 index 00abae5e..00000000 --- a/src/uri_parser.erl +++ /dev/null @@ -1,118 +0,0 @@ -%% This file is a copy of http_uri.erl from the R13B-1 Erlang/OTP -%% distribution with several modifications. - -%% All modifications are Copyright (c) 2009-2011 VMware, Ltd. - -%% ``The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved via the world wide web at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. -%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings -%% AB. All Rights Reserved.'' - -%% See http://tools.ietf.org/html/rfc3986 - --module(uri_parser). - --export([parse/2]). - -%%%========================================================================= -%%% API -%%%========================================================================= - -%% Returns a key list of elements extracted from the URI. Note that -%% only 'scheme' is guaranteed to exist. Key-Value pairs from the -%% Defaults list will be used absence of a non-empty value extracted -%% from the URI. The values extracted are strings, except for 'port' -%% which is an integer, 'userinfo' which is a list of strings (split -%% on $:), and 'query' which is a list of strings where no $= char -%% found, or a {key,value} pair where a $= char is found (initial -%% split on $& and subsequent optional split on $=). Possible keys -%% are: 'scheme', 'userinfo', 'host', 'port', 'path', 'query', -%% 'fragment'. - -parse(AbsURI, Defaults) -> - case parse_scheme(AbsURI) of - {error, Reason} -> - {error, Reason}; - {Scheme, Rest} -> - case (catch parse_uri_rest(Rest, true)) of - [_|_] = List -> - merge_keylists([{scheme, Scheme} | List], Defaults); - E -> - {error, {malformed_uri, AbsURI, E}} - end - end. - -%%%======================================================================== -%%% Internal functions -%%%======================================================================== -parse_scheme(AbsURI) -> - split_uri(AbsURI, ":", {error, no_scheme}). - -parse_uri_rest("//" ++ URIPart, true) -> - %% we have an authority - {Authority, PathQueryFrag} = - split_uri(URIPart, "/|\\?|#", {URIPart, ""}, 1, 0), - AuthorityParts = parse_authority(Authority), - parse_uri_rest(PathQueryFrag, false) ++ AuthorityParts; -parse_uri_rest(PathQueryFrag, _Bool) -> - %% no authority, just a path and maybe query - {PathQuery, Frag} = split_uri(PathQueryFrag, "#", {PathQueryFrag, ""}), - {Path, QueryString} = split_uri(PathQuery, "\\?", {PathQuery, ""}), - QueryPropList = split_query(QueryString), - [{path, Path}, {'query', QueryPropList}, {fragment, Frag}]. - -parse_authority(Authority) -> - {UserInfo, HostPort} = split_uri(Authority, "@", {"", Authority}), - UserInfoSplit = case re:split(UserInfo, ":", [{return, list}]) of - [""] -> []; - UIS -> UIS - end, - [{userinfo, UserInfoSplit} | parse_host_port(HostPort)]. - -parse_host_port("[" ++ HostPort) -> %ipv6 - {Host, ColonPort} = split_uri(HostPort, "\\]", {HostPort, ""}), - [{host, Host} | case split_uri(ColonPort, ":", not_found, 0, 1) of - not_found -> []; - {_, Port} -> [{port, list_to_integer(Port)}] - end]; - -parse_host_port(HostPort) -> - {Host, Port} = split_uri(HostPort, ":", {HostPort, not_found}), - [{host, Host} | case Port of - not_found -> []; - _ -> [{port, list_to_integer(Port)}] - end]. - -split_query(Query) -> - case re:split(Query, "&", [{return, list}]) of - [""] -> []; - QParams -> [split_uri(Param, "=", Param) || Param <- QParams] - end. - -split_uri(UriPart, SplitChar, NoMatchResult) -> - split_uri(UriPart, SplitChar, NoMatchResult, 1, 1). - -split_uri(UriPart, SplitChar, NoMatchResult, SkipLeft, SkipRight) -> - case re:run(UriPart, SplitChar) of - {match, [{Match, _}]} -> - {string:substr(UriPart, 1, Match + 1 - SkipLeft), - string:substr(UriPart, Match + 1 + SkipRight, length(UriPart))}; - nomatch -> - NoMatchResult - end. - -merge_keylists(A, B) -> - {AEmpty, ANonEmpty} = lists:partition(fun ({_Key, V}) -> V =:= [] end, A), - [AEmptyS, ANonEmptyS, BS] = - [lists:ukeysort(1, X) || X <- [AEmpty, ANonEmpty, B]], - lists:ukeymerge(1, lists:ukeymerge(1, ANonEmptyS, BS), AEmptyS). diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl deleted file mode 100644 index 44e1e4b5..00000000 --- a/src/vm_memory_monitor.erl +++ /dev/null @@ -1,363 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% In practice Erlang shouldn't be allowed to grow to more than a half -%% of available memory. The pessimistic scenario is when the Erlang VM -%% has a single process that's consuming all memory. In such a case, -%% during garbage collection, Erlang tries to allocate a huge chunk of -%% continuous memory, which can result in a crash or heavy swapping. -%% -%% This module tries to warn Rabbit before such situations occur, so -%% that it has a higher chance to avoid running out of memory. - --module(vm_memory_monitor). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0, get_total_memory/0, get_vm_limit/0, - get_check_interval/0, set_check_interval/1, - get_vm_memory_high_watermark/0, set_vm_memory_high_watermark/1, - get_memory_limit/0]). - - --define(SERVER, ?MODULE). --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%% For an unknown OS, we assume that we have 1GB of memory. It'll be -%% wrong. Scale by vm_memory_high_watermark in configuration to get a -%% sensible value. --define(MEMORY_SIZE_FOR_UNKNOWN_OS, 1073741824). - --record(state, {total_memory, - memory_limit, - timeout, - timer, - alarmed - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (float()) -> {'ok', pid()} | {'error', any()}). --spec(update/0 :: () -> 'ok'). --spec(get_total_memory/0 :: () -> (non_neg_integer() | 'unknown')). --spec(get_vm_limit/0 :: () -> non_neg_integer()). --spec(get_memory_limit/0 :: () -> non_neg_integer()). --spec(get_check_interval/0 :: () -> non_neg_integer()). --spec(set_check_interval/1 :: (non_neg_integer()) -> 'ok'). --spec(get_vm_memory_high_watermark/0 :: () -> float()). --spec(set_vm_memory_high_watermark/1 :: (float()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -update() -> - gen_server:cast(?SERVER, update). - -get_total_memory() -> - get_total_memory(os:type()). - -get_vm_limit() -> - get_vm_limit(os:type()). - -get_check_interval() -> - gen_server:call(?MODULE, get_check_interval, infinity). - -set_check_interval(Fraction) -> - gen_server:call(?MODULE, {set_check_interval, Fraction}, infinity). - -get_vm_memory_high_watermark() -> - gen_server:call(?MODULE, get_vm_memory_high_watermark, infinity). - -set_vm_memory_high_watermark(Fraction) -> - gen_server:call(?MODULE, {set_vm_memory_high_watermark, Fraction}, - infinity). - -get_memory_limit() -> - gen_server:call(?MODULE, get_memory_limit, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -init([MemFraction]) -> - TotalMemory = - case get_total_memory() of - unknown -> - error_logger:warning_msg( - "Unknown total memory size for your OS ~p. " - "Assuming memory size is ~pMB.~n", - [os:type(), trunc(?MEMORY_SIZE_FOR_UNKNOWN_OS/1048576)]), - ?MEMORY_SIZE_FOR_UNKNOWN_OS; - M -> M - end, - MemLimit = get_mem_limit(MemFraction, TotalMemory), - error_logger:info_msg("Memory limit set to ~pMB.~n", - [trunc(MemLimit/1048576)]), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - State = #state { total_memory = TotalMemory, - memory_limit = MemLimit, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - alarmed = false}, - {ok, internal_update(State)}. - -handle_call(get_vm_memory_high_watermark, _From, State) -> - {reply, State#state.memory_limit / State#state.total_memory, State}; - -handle_call({set_vm_memory_high_watermark, MemFraction}, _From, State) -> - MemLimit = get_mem_limit(MemFraction, State#state.total_memory), - error_logger:info_msg("Memory alarm changed to ~p, ~p bytes.~n", - [MemFraction, MemLimit]), - {reply, ok, State#state{memory_limit = MemLimit}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_limit, _From, State) -> - {reply, State#state.memory_limit, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% Server Internals -%%---------------------------------------------------------------------------- - -internal_update(State = #state { memory_limit = MemLimit, - alarmed = Alarmed}) -> - MemUsed = erlang:memory(total), - NewAlarmed = MemUsed > MemLimit, - case {Alarmed, NewAlarmed} of - {false, true} -> - emit_update_info(set, MemUsed, MemLimit), - alarm_handler:set_alarm({vm_memory_high_watermark, []}); - {true, false} -> - emit_update_info(clear, MemUsed, MemLimit), - alarm_handler:clear_alarm(vm_memory_high_watermark); - _ -> - ok - end, - State #state {alarmed = NewAlarmed}. - -emit_update_info(State, MemUsed, MemLimit) -> - error_logger:info_msg( - "vm_memory_high_watermark ~p. Memory used:~p allowed:~p~n", - [State, MemUsed, MemLimit]). - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% According to http://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx -%% Windows has 2GB and 8TB of address space for 32 and 64 bit accordingly. -get_vm_limit({win32,_OSname}) -> - case erlang:system_info(wordsize) of - 4 -> 2*1024*1024*1024; %% 2 GB for 32 bits 2^31 - 8 -> 8*1024*1024*1024*1024 %% 8 TB for 64 bits 2^42 - end; - -%% On a 32-bit machine, if you're using more than 2 gigs of RAM you're -%% in big trouble anyway. -get_vm_limit(_OsType) -> - case erlang:system_info(wordsize) of - 4 -> 4*1024*1024*1024; %% 4 GB for 32 bits 2^32 - 8 -> 256*1024*1024*1024*1024 %% 256 TB for 64 bits 2^48 - %%http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_details - end. - -get_mem_limit(MemFraction, TotalMemory) -> - AvMem = lists:min([TotalMemory, get_vm_limit()]), - trunc(AvMem * MemFraction). - -%%---------------------------------------------------------------------------- -%% Internal Helpers -%%---------------------------------------------------------------------------- -cmd(Command) -> - Exec = hd(string:tokens(Command, " ")), - case os:find_executable(Exec) of - false -> throw({command_not_found, Exec}); - _ -> os:cmd(Command) - end. - -%% get_total_memory(OS) -> Total -%% Windows and Freebsd code based on: memsup:get_memory_usage/1 -%% Original code was part of OTP and released under "Erlang Public License". - -get_total_memory({unix,darwin}) -> - File = cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_mach/1, Lines)), - [PageSize, Inactive, Active, Free, Wired] = - [dict:fetch(Key, Dict) || - Key <- [page_size, 'Pages inactive', 'Pages active', 'Pages free', - 'Pages wired down']], - PageSize * (Inactive + Active + Free + Wired); - -get_total_memory({unix,freebsd}) -> - PageSize = freebsd_sysctl("vm.stats.vm.v_page_size"), - PageCount = freebsd_sysctl("vm.stats.vm.v_page_count"), - PageCount * PageSize; - -get_total_memory({win32,_OSname}) -> - %% Due to the Erlang print format bug, on Windows boxes the memory - %% size is broken. For example Windows 7 64 bit with 4Gigs of RAM - %% we get negative memory size: - %% > os_mon_sysinfo:get_mem_info(). - %% ["76 -1658880 1016913920 -1 -1021628416 2147352576 2134794240\n"] - %% Due to this bug, we don't actually know anything. Even if the - %% number is postive we can't be sure if it's correct. This only - %% affects us on os_mon versions prior to 2.2.1. - case application:get_key(os_mon, vsn) of - undefined -> - unknown; - {ok, Version} -> - case rabbit_misc:version_compare(Version, "2.2.1", lt) of - true -> %% os_mon is < 2.2.1, so we know nothing - unknown; - false -> - [Result|_] = os_mon_sysinfo:get_mem_info(), - {ok, [_MemLoad, TotPhys, _AvailPhys, - _TotPage, _AvailPage, _TotV, _AvailV], _RestStr} = - io_lib:fread("~d~d~d~d~d~d~d", Result), - TotPhys - end - end; - -get_total_memory({unix, linux}) -> - File = read_proc_file("/proc/meminfo"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_linux/1, Lines)), - dict:fetch('MemTotal', Dict); - -get_total_memory({unix, sunos}) -> - File = cmd("/usr/sbin/prtconf"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_sunos/1, Lines)), - dict:fetch('Memory size', Dict); - -get_total_memory({unix, aix}) -> - File = cmd("/usr/bin/vmstat -v"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_aix/1, Lines)), - dict:fetch('memory pages', Dict) * 4096; - -get_total_memory(_OsType) -> - unknown. - -%% A line looks like "Foo bar: 123456." -parse_line_mach(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. - -%% A line looks like "FooBar: 123456 kB" -parse_line_linux(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. - -%% A line looks like "Memory size: 1024 Megabytes" -parse_line_sunos(Line) -> - case string:tokens(Line, ":") of - [Name, RHS | _Rest] -> - [Value1 | UnitsRest] = string:tokens(RHS, " "), - Value2 = case UnitsRest of - ["Gigabytes"] -> - list_to_integer(Value1) * 1024 * 1024 * 1024; - ["Megabytes"] -> - list_to_integer(Value1) * 1024 * 1024; - ["Kilobytes"] -> - list_to_integer(Value1) * 1024; - _ -> - Value1 ++ UnitsRest %% no known units - end, - {list_to_atom(Name), Value2}; - [Name] -> {list_to_atom(Name), none} - end. - -%% Lines look like " 12345 memory pages" -%% or " 80.1 maxpin percentage" -parse_line_aix(Line) -> - [Value | NameWords] = string:tokens(Line, " "), - Name = string:join(NameWords, " "), - {list_to_atom(Name), - case lists:member($., Value) of - true -> trunc(list_to_float(Value)); - false -> list_to_integer(Value) - end}. - -freebsd_sysctl(Def) -> - list_to_integer(cmd("/sbin/sysctl -n " ++ Def) -- "\n"). - -%% file:read_file does not work on files in /proc as it seems to get -%% the size of the file first and then read that many bytes. But files -%% in /proc always have length 0, we just have to read until we get -%% eof. -read_proc_file(File) -> - {ok, IoDevice} = file:open(File, [read, raw]), - Res = read_proc_file(IoDevice, []), - file:close(IoDevice), - lists:flatten(lists:reverse(Res)). - --define(BUFFER_SIZE, 1024). -read_proc_file(IoDevice, Acc) -> - case file:read(IoDevice, ?BUFFER_SIZE) of - {ok, Res} -> read_proc_file(IoDevice, [Res | Acc]); - eof -> Acc - end. diff --git a/src/worker_pool.erl b/src/worker_pool.erl deleted file mode 100644 index e4f260cc..00000000 --- a/src/worker_pool.erl +++ /dev/null @@ -1,140 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool). - -%% Generic worker pool manager. -%% -%% Supports nested submission of jobs (nested jobs always run -%% immediately in current worker process). -%% -%% Possible future enhancements: -%% -%% 1. Allow priorities (basically, change the pending queue to a -%% priority_queue). - --behaviour(gen_server2). - --export([start_link/0, submit/1, submit_async/1, idle/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(submit/1 :: (fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/1 :: - (fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(state, { available, pending }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], - [{timeout, infinity}]). - -submit(Fun) -> - case get(worker_pool_worker) of - true -> worker_pool_worker:run(Fun); - _ -> Pid = gen_server2:call(?SERVER, next_free, infinity), - worker_pool_worker:submit(Pid, Fun) - end. - -submit_async(Fun) -> - gen_server2:cast(?SERVER, {run_async, Fun}). - -idle(WId) -> - gen_server2:cast(?SERVER, {idle, WId}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state { pending = queue:new(), available = queue:new() }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(next_free, From, State = #state { available = Avail, - pending = Pending }) -> - case queue:out(Avail) of - {empty, _Avail} -> - {noreply, - State #state { pending = queue:in({next_free, From}, Pending) }, - hibernate}; - {{value, WId}, Avail1} -> - {reply, get_worker_pid(WId), State #state { available = Avail1 }, - hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({idle, WId}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, case queue:out(Pending) of - {empty, _Pending} -> - State #state { available = queue:in(WId, Avail) }; - {{value, {next_free, From}}, Pending1} -> - gen_server2:reply(From, get_worker_pid(WId)), - State #state { pending = Pending1 }; - {{value, {run_async, Fun}}, Pending1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { pending = Pending1 } - end, hibernate}; - -handle_cast({run_async, Fun}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, - case queue:out(Avail) of - {empty, _Avail} -> - State #state { pending = queue:in({run_async, Fun}, Pending)}; - {{value, WId}, Avail1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { available = Avail1 } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. - -%%---------------------------------------------------------------------------- - -get_worker_pid(WId) -> - [{WId, Pid, _Type, _Modules} | _] = - lists:dropwhile(fun ({Id, _Pid, _Type, _Modules}) - when Id =:= WId -> false; - (_) -> true - end, - supervisor:which_children(worker_pool_sup)), - Pid. diff --git a/src/worker_pool_sup.erl b/src/worker_pool_sup.erl deleted file mode 100644 index 28c1adc6..00000000 --- a/src/worker_pool_sup.erl +++ /dev/null @@ -1,53 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_sup). - --behaviour(supervisor). - --export([start_link/0, start_link/1]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link() -> - start_link(erlang:system_info(schedulers)). - -start_link(WCount) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [WCount]). - -%%---------------------------------------------------------------------------- - -init([WCount]) -> - {ok, {{one_for_one, 10, 10}, - [{worker_pool, {worker_pool, start_link, []}, transient, - 16#ffffffff, worker, [worker_pool]} | - [{N, {worker_pool_worker, start_link, [N]}, transient, 16#ffffffff, - worker, [worker_pool_worker]} || N <- lists:seq(1, WCount)]]}}. diff --git a/src/worker_pool_worker.erl b/src/worker_pool_worker.erl deleted file mode 100644 index 78ab4df3..00000000 --- a/src/worker_pool_worker.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_worker). - --behaviour(gen_server2). - --export([start_link/1, submit/2, submit_async/2, run/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (any()) -> {'ok', pid()} | {'error', any()}). --spec(submit/2 :: (pid(), fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/2 :: - (pid(), fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). --spec(run/1 :: (fun (() -> A)) -> A; - ({atom(), atom(), [any()]}) -> any()). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(WId) -> - gen_server2:start_link(?MODULE, [WId], [{timeout, infinity}]). - -submit(Pid, Fun) -> - gen_server2:call(Pid, {submit, Fun}, infinity). - -submit_async(Pid, Fun) -> - gen_server2:cast(Pid, {submit_async, Fun}). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -run({M, F, A}) -> - apply(M, F, A); -run(Fun) -> - Fun(). - -%%---------------------------------------------------------------------------- - -init([WId]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - ok = worker_pool:idle(WId), - put(worker_pool_worker, true), - {ok, WId, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call({submit, Fun}, From, WId) -> - gen_server2:reply(From, run(Fun)), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({submit_async, Fun}, WId) -> - run(Fun), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_cast({set_maximum_since_use, Age}, WId) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, WId, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. -- cgit v1.2.1 From 8c6676b112869e6c730663a645d41f443449c8d8 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 14 Mar 2011 13:43:02 -0700 Subject: Abot to make some of Matthew's changes. --- src/rabbit_mnesia_queue.erl | 72 ++++++++++++++++++++++----------------------- src/rabbit_ram_queue.erl | 72 ++++++++++++++++++++++----------------------- 2 files changed, 72 insertions(+), 72 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 663241a2..38ae6f98 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -212,7 +212,7 @@ stop() -> ok. %% Mnesia transaction! init(QueueName, IsDurable, Recover) -> - % rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), + %% rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), {QTable, PTable, NTable} = tables(QueueName), case Recover of false -> _ = mnesia:delete_table(QTable), @@ -249,7 +249,7 @@ init(QueueName, IsDurable, Recover) -> save(RS), RS end), - % rabbit_log:info("init ->~n ~p", [Result]), + %% rabbit_log:info("init ->~n ~p", [Result]), callback([]), Result. @@ -263,11 +263,11 @@ init(QueueName, IsDurable, Recover) -> %% -spec(terminate/1 :: (state()) -> state()). terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> - % rabbit_log:info("terminate(~n ~p) ->", [S]), + %% rabbit_log:info("terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> clear_table(PTable), S end), mnesia:dump_tables([QTable, PTable, NTable]), - % rabbit_log:info("terminate ->~n ~p", [Result]), + %% rabbit_log:info("terminate ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -282,14 +282,14 @@ terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> delete_and_terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> - % rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), + %% rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> clear_table(QTable), clear_table(PTable), S end), mnesia:dump_tables([QTable, PTable, NTable]), - % rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), + %% rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -302,13 +302,13 @@ delete_and_terminate(S = #s { q_table = QTable, %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). purge(S = #s { q_table = QTable }) -> - % rabbit_log:info("purge(~n ~p) ->", [S]), + %% rabbit_log:info("purge(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), clear_table(QTable), {LQ, S} end), - % rabbit_log:info("purge ->~n ~p", [Result]), + %% rabbit_log:info("purge ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -324,13 +324,13 @@ purge(S = #s { q_table = QTable }) -> %% -> state()). publish(Msg, Props, S) -> - % rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + %% rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), {atomic, Result} = mnesia:transaction(fun () -> RS = publish_state(Msg, Props, false, S), save(RS), RS end), - % rabbit_log:info("publish ->~n ~p", [Result]), + %% rabbit_log:info("publish ->~n ~p", [Result]), callback([{Msg, Props}]), Result. @@ -350,16 +350,16 @@ publish(Msg, Props, S) -> %% -> {undefined, state()}). publish_delivered(false, Msg, Props, S) -> - % rabbit_log:info("publish_delivered(false,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + %% rabbit_log:info("publish_delivered(false,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), Result = {undefined, S}, - % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + %% rabbit_log:info("publish_delivered ->~n ~p", [Result]), callback([{Msg, Props}]), Result; publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId, next_out_id = OutId }) -> - % rabbit_log:info("publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + %% rabbit_log:info("publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), {atomic, Result} = mnesia:transaction( fun () -> @@ -369,7 +369,7 @@ publish_delivered(true, save(RS), {SeqId, RS} end), - % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + %% rabbit_log:info("publish_delivered ->~n ~p", [Result]), callback([{Msg, Props}]), Result. @@ -391,13 +391,13 @@ publish_delivered(true, %% -> state()). dropwhile(Pred, S) -> - % rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), + %% rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), {atomic, {_, Result}} = mnesia:transaction(fun () -> {Atom, RS} = internal_dropwhile(Pred, S), save(RS), {Atom, RS} end), - % rabbit_log:info("dropwhile ->~n ~p", [Result]), + %% rabbit_log:info("dropwhile ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -410,7 +410,7 @@ dropwhile(Pred, S) -> %% (false, state()) -> {fetch_result(undefined), state()}). fetch(AckRequired, S) -> - % rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), + %% rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), % % TODO: This dropwhile is to help the testPublishAndGetWithExpiry % functional test pass. Although msg expiration is asynchronous by @@ -425,7 +425,7 @@ fetch(AckRequired, S) -> {atomic, FR} = mnesia:transaction(fun () -> internal_fetch(AckRequired, S1) end), Result = {FR, S1}, - % rabbit_log:info("fetch ->~n ~p", [Result]), + %% rabbit_log:info("fetch ->~n ~p", [Result]), callback([]), Result. @@ -438,13 +438,13 @@ fetch(AckRequired, S) -> %% -spec(ack/2 :: ([ack()], state()) -> state()). ack(SeqIds, S) -> - % rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), + %% rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), {atomic, Result} = mnesia:transaction(fun () -> RS = internal_ack(SeqIds, S), save(RS), RS end), - % rabbit_log:info("ack ->~n ~p", [Result]), + %% rabbit_log:info("ack ->~n ~p", [Result]), callback([]), Result. @@ -464,7 +464,7 @@ ack(SeqIds, S) -> %% -> state()). tx_publish(Txn, Msg, Props, S) -> - % rabbit_log:info("tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), + %% rabbit_log:info("tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), {atomic, Result} = mnesia:transaction( fun () -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), @@ -474,7 +474,7 @@ tx_publish(Txn, Msg, Props, S) -> save(RS), RS end), - % rabbit_log:info("tx_publish ->~n ~p", [Result]), + %% rabbit_log:info("tx_publish ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -487,7 +487,7 @@ tx_publish(Txn, Msg, Props, S) -> %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). tx_ack(Txn, SeqIds, S) -> - % rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), + %% rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), {atomic, Result} = mnesia:transaction( fun () -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), @@ -496,7 +496,7 @@ tx_ack(Txn, SeqIds, S) -> save(RS), RS end), - % rabbit_log:info("tx_ack ->~n ~p", [Result]), + %% rabbit_log:info("tx_ack ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -508,7 +508,7 @@ tx_ack(Txn, SeqIds, S) -> %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, S) -> - % rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), + %% rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), {atomic, Result} = mnesia:transaction(fun () -> #tx { to_ack = SeqIds } = lookup_tx(Txn, S), @@ -516,7 +516,7 @@ tx_rollback(Txn, S) -> save(RS), {SeqIds, RS} end), - % rabbit_log:info("tx_rollback ->~n ~p", [Result]), + %% rabbit_log:info("tx_rollback ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -536,7 +536,7 @@ tx_rollback(Txn, S) -> %% -> {[ack()], state()}). tx_commit(Txn, F, PropsF, S) -> - % rabbit_log:info("tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), + %% rabbit_log:info("tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), {atomic, {Result, Pubs}} = mnesia:transaction( fun () -> @@ -547,7 +547,7 @@ tx_commit(Txn, F, PropsF, S) -> {{SeqIds, RS}, Pubs} end), F(), - % rabbit_log:info("tx_commit ->~n ~p", [Result]), + %% rabbit_log:info("tx_commit ->~n ~p", [Result]), callback(Pubs), Result. @@ -562,7 +562,7 @@ tx_commit(Txn, F, PropsF, S) -> %% ([ack()], message_properties_transformer(), state()) -> state()). requeue(SeqIds, PropsF, S) -> - % rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), + %% rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), {atomic, Result} = mnesia:transaction( fun () -> RS = @@ -575,7 +575,7 @@ requeue(SeqIds, PropsF, S) -> save(RS), RS end), - % rabbit_log:info("requeue ->~n ~p", [Result]), + %% rabbit_log:info("requeue ->~n ~p", [Result]), callback([]), Result. @@ -588,10 +588,10 @@ requeue(SeqIds, PropsF, S) -> %% -spec(len/1 :: (state()) -> non_neg_integer()). len(#s { q_table = QTable }) -> - % rabbit_log:info("len(~n ~p) ->", [S]), + %% rabbit_log:info("len(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), - % rabbit_log:info("len ->~n ~p", [Result]), + %% rabbit_log:info("len ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -603,10 +603,10 @@ len(#s { q_table = QTable }) -> %% -spec(is_empty/1 :: (state()) -> boolean()). is_empty(#s { q_table = QTable }) -> - % rabbit_log:info("is_empty(~n ~p) ->", [S]), + %% rabbit_log:info("is_empty(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), - % rabbit_log:info("is_empty ->~n ~p", [Result]), + %% rabbit_log:info("is_empty ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -668,14 +668,14 @@ handle_pre_hibernate(S) -> S. status(#s { q_table = QTable, p_table = PTable, next_seq_id = NextSeqId }) -> - % rabbit_log:info("status(~n ~p) ->", [S]), + %% rabbit_log:info("status(~n ~p) ->", [S]), {atomic, Result} = mnesia:transaction( fun () -> LQ = length(mnesia:all_keys(QTable)), LP = length(mnesia:all_keys(PTable)), [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] end), - % rabbit_log:info("status ->~n ~p", [Result]), + %% rabbit_log:info("status ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 4afe73ea..33d5c87f 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -147,12 +147,12 @@ stop() -> ok. %% -> state()). init(_QueueName, _IsDurable, _Recover) -> - % rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), + %% rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), Result = #s { q = queue:new(), p = dict:new(), next_seq_id = 0, txn_dict = dict:new() }, - % rabbit_log:info("init ->~n ~p", [Result]), + %% rabbit_log:info("init ->~n ~p", [Result]), callback([]), Result. @@ -165,9 +165,9 @@ init(_QueueName, _IsDurable, _Recover) -> %% -spec(terminate/1 :: (state()) -> state()). terminate(S) -> - % rabbit_log:info("terminate(~n ~p) ->", [S]), + %% rabbit_log:info("terminate(~n ~p) ->", [S]), Result = S #s { p = dict:new() }, - % rabbit_log:info("terminate ->~n ~p", [Result]), + %% rabbit_log:info("terminate ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -179,9 +179,9 @@ terminate(S) -> %% -spec(delete_and_terminate/1 :: (state()) -> state()). delete_and_terminate(S) -> - % rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), + %% rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), Result = S #s { q = queue:new(), p = dict:new() }, - % rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), + %% rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -193,9 +193,9 @@ delete_and_terminate(S) -> %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). purge(S = #s { q = Q }) -> - % rabbit_log:info("purge(~n ~p) ->", [S]), + %% rabbit_log:info("purge(~n ~p) ->", [S]), Result = {queue:len(Q), S #s { q = queue:new() }}, - % rabbit_log:info("purge ->~n ~p", [Result]), + %% rabbit_log:info("purge ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -210,9 +210,9 @@ purge(S = #s { q = Q }) -> %% -> state()). publish(Msg, Props, S) -> - % rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + %% rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), Result = publish_state(Msg, Props, false, S), - % rabbit_log:info("publish ->~n ~p", [Result]), + %% rabbit_log:info("publish ->~n ~p", [Result]), callback([{Msg, Props}]), Result. @@ -231,17 +231,17 @@ publish(Msg, Props, S) -> %% -> {undefined, state()}). publish_delivered(false, Msg, Props, S) -> - % rabbit_log:info("publish_delivered(false,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + %% rabbit_log:info("publish_delivered(false,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), Result = {undefined, S}, - % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + %% rabbit_log:info("publish_delivered ->~n ~p", [Result]), callback([{Msg, Props}]), Result; publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> - % rabbit_log:info("publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + %% rabbit_log:info("publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), Result = {SeqId, (add_p((m(Msg, SeqId, Props)) #m { is_delivered = true }, S)) #s { next_seq_id = SeqId + 1 }}, - % rabbit_log:info("publish_delivered ->~n ~p", [Result]), + %% rabbit_log:info("publish_delivered ->~n ~p", [Result]), callback([{Msg, Props}]), Result. @@ -260,9 +260,9 @@ publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> %% -> state()). dropwhile(Pred, S) -> - % rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), + %% rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), {_, Result} = internal_dropwhile(Pred, S), - % rabbit_log:info("dropwhile ->~n ~p", [Result]), + %% rabbit_log:info("dropwhile ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -274,7 +274,7 @@ dropwhile(Pred, S) -> %% (false, state()) -> {fetch_result(undefined), state()}). fetch(AckRequired, S) -> - % rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), + %% rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), % % TODO: This dropwhile is to help the testPublishAndGetWithExpiry % functional test pass. Although msg expiration is asynchronous by @@ -287,7 +287,7 @@ fetch(AckRequired, S) -> fun (#message_properties{expiry = Expiry}) -> Expiry < Now end, S), Result = internal_fetch(AckRequired, S1), - % rabbit_log:info("fetch ->~n ~p", [Result]), + %% rabbit_log:info("fetch ->~n ~p", [Result]), callback([]), Result. @@ -299,9 +299,9 @@ fetch(AckRequired, S) -> %% -spec(ack/2 :: ([ack()], state()) -> state()). ack(SeqIds, S) -> - % rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), + %% rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), Result = internal_ack(SeqIds, S), - % rabbit_log:info("ack ->~n ~p", [Result]), + %% rabbit_log:info("ack ->~n ~p", [Result]), callback([]), Result. @@ -320,10 +320,10 @@ ack(SeqIds, S) -> %% -> state()). tx_publish(Txn, Msg, Props, S) -> - % rabbit_log:info("tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), + %% rabbit_log:info("tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), Result = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), - % rabbit_log:info("tx_publish ->~n ~p", [Result]), + %% rabbit_log:info("tx_publish ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -335,10 +335,10 @@ tx_publish(Txn, Msg, Props, S) -> %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). tx_ack(Txn, SeqIds, S) -> - % rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), + %% rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), Result = store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, S), - % rabbit_log:info("tx_ack ->~n ~p", [Result]), + %% rabbit_log:info("tx_ack ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -349,10 +349,10 @@ tx_ack(Txn, SeqIds, S) -> %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, S) -> - % rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), + %% rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), #tx { to_ack = SeqIds } = lookup_tx(Txn, S), Result = {SeqIds, erase_tx(Txn, S)}, - % rabbit_log:info("tx_rollback ->~n ~p", [Result]), + %% rabbit_log:info("tx_rollback ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -370,11 +370,11 @@ tx_rollback(Txn, S) -> %% -> {[ack()], state()}). tx_commit(Txn, F, PropsF, S) -> - % rabbit_log:info("tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), + %% rabbit_log:info("tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), Result = {SeqIds, tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S))}, F(), - % rabbit_log:info("tx_commit ->~n ~p", [Result]), + %% rabbit_log:info("tx_commit ->~n ~p", [Result]), callback(Pubs), Result. @@ -388,14 +388,14 @@ tx_commit(Txn, F, PropsF, S) -> %% ([ack()], message_properties_transformer(), state()) -> state()). requeue(SeqIds, PropsF, S) -> - % rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), + %% rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), Result = del_ps( fun (#m { msg = Msg, props = Props }, Si) -> publish_state(Msg, PropsF(Props), true, Si) end, SeqIds, S), - % rabbit_log:info("requeue ->~n ~p", [Result]), + %% rabbit_log:info("requeue ->~n ~p", [Result]), callback([]), Result. @@ -407,9 +407,9 @@ requeue(SeqIds, PropsF, S) -> %% -spec(len/1 :: (state()) -> non_neg_integer()). len(#s { q = Q }) -> - % rabbit_log:info("len(~n ~p) ->", [S]), + %% rabbit_log:info("len(~n ~p) ->", [S]), Result = queue:len(Q), - % rabbit_log:info("len ->~n ~p", [Result]), + %% rabbit_log:info("len ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -420,9 +420,9 @@ len(#s { q = Q }) -> %% -spec(is_empty/1 :: (state()) -> boolean()). is_empty(#s { q = Q }) -> - % rabbit_log:info("is_empty(~n ~p) ->", [S]), + %% rabbit_log:info("is_empty(~n ~p) ->", [S]), Result = queue:is_empty(Q), - % rabbit_log:info("is_empty ->~n ~p", [Result]), + %% rabbit_log:info("is_empty ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- @@ -481,10 +481,10 @@ handle_pre_hibernate(S) -> S. %% -spec(status/1 :: (state()) -> [{atom(), any()}]). status(#s { q = Q, p = P, next_seq_id = NextSeqId }) -> - % rabbit_log:info("status(~n ~p) ->", [S]), + %% rabbit_log:info("status(~n ~p) ->", [S]), Result = [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, dict:size(P)}], - % rabbit_log:info("status ->~n ~p", [Result]), + %% rabbit_log:info("status ->~n ~p", [Result]), Result. %%---------------------------------------------------------------------------- -- cgit v1.2.1 From ad2ce4f3d53b4b2f8ca168b2d31c403d8c07635b Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 14 Mar 2011 18:08:11 -0700 Subject: Changes to rabbit_ram_queue, not yet tested, not yet run through Dialyzer. --- src/rabbit_ram_queue.erl | 577 ++++++++++++++++++++--------------------------- 1 file changed, 245 insertions(+), 332 deletions(-) diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 33d5c87f..bbd880ca 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -23,7 +23,7 @@ set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, status/1]). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% This is a simple implementation of the rabbit_backing_queue %% behavior, with all msgs in RAM. %% @@ -31,36 +31,39 @@ %% module in the middle of the server tree.... %% ---------------------------------------------------------------------------- -%%---------------------------------------------------------------------------- -%% This module wraps msgs into Ms for internal use, including -%% additional information. Pending acks are also recorded as Ms. Msgs -%% and pending acks are both stored in RAM. +%% ---------------------------------------------------------------------------- +%% This module wraps msgs into msg_status records for internal use, +%% including additional information. Pending acks are also recorded as +%% msg_status records. These are both stored in RAM. %% %% All queues are non-durable in this version, and all msgs are %% treated as non-persistent. (This may break some clients and some -%% tests for durable queues.) +%% tests for durable queues, but it also keeps some tests from +%% breaking the test apparatus.) %% ---------------------------------------------------------------------------- %% TODO: Need to provide better back-pressure when queue is filling up. -behaviour(rabbit_backing_queue). -%% The S record is the in-RAM AMQP queue state. It contains the queue -%% of Ms; the next_seq_id; and the AMQP transaction dict. +%% The state record is the in-RAM AMQP queue state. It contains the +%% queue of msg_status records; the next_seq_id; and the AMQP +%% transaction dict. --record(s, % The in-RAM queue state - { q, % The queue of Ms - p, % The seq_id->M map of pending acks - next_seq_id, % The next M's seq_id +-record(state, % The in-RAM queue state + { q, % The queue of msg_status records + q_len, % queue:len of q + pending_acks, % The seq_id->msg_status map of pending acks + next_seq_id, % The next msg_status record's seq_id txn_dict % In-progress txn->tx map }). -%% An M record is a wrapper around a msg. It contains a seq_id, -%% assigned when the msg is published; the msg itself; the msg's -%% props, as presented by the client or as transformed by the client; -%% and an is-delivered flag, for reporting. +%% An msg_status record is a wrapper around a msg. It contains a +%% seq_id, assigned when the msg is published; the msg itself; the +%% msg's props, as presented by the client or as transformed by the +%% client; and an is-delivered flag, for reporting. --record(m, % A wrapper aroung a msg +-record(msg_status, % A wrapper aroung a msg { seq_id, % The seq_id for the msg msg, % The msg itself props, % The msg properties @@ -81,27 +84,26 @@ -include("rabbit.hrl"). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% BUG: Restore -ifdef, -endif. %% -ifdef(use_specs). --type(maybe(T) :: nothing | {just, T}). - -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id()). --type(s() :: #s { q :: queue(), - p :: dict(), - next_seq_id :: seq_id(), - txn_dict :: dict() }). --type(state() :: s()). +-type(state() :: #state { q :: queue(), + q_len :: non_neg_integer(), + pending_acks :: dict(), + next_seq_id :: seq_id(), + txn_dict :: dict() }). --type(m() :: #m { seq_id :: seq_id(), - msg :: rabbit_types:basic_message(), - props :: rabbit_types:message_properties(), - is_delivered :: boolean() }). +-type(msg_status() :: + #msg_status { seq_id :: seq_id(), + msg :: rabbit_types:basic_message(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). -type(tx() :: #tx { to_pub :: [pub()], to_ack :: [seq_id()] }). @@ -113,116 +115,92 @@ %% -endif. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% Public API %% -%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here +%% for readability. -%%---------------------------------------------------------------------------- -%% start/1 promises that a list of (durable) queues will be started in +%% ---------------------------------------------------------------------------- +%% start/1 predicts that a list of (durable) queues will be started in %% the near future. This lets us perform early checking of the %% consistency of those queues, and initialize other shared -%% resources. It is ignored in this implementation. +%% resources. These queues might not in fact be started, and other +%% queues might be started instead. It is ignored in this +%% implementation. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). start(_DurableQueues) -> ok. -%%---------------------------------------------------------------------------- -%% stop/0 tears down all state/resources upon shutdown. It might not -%% be called. It is ignored in this implementation. +%% ---------------------------------------------------------------------------- +%% stop/0 tears down all queue state/resources upon shutdown. It might +%% not be called. It is ignored in this implementation. %% %% -spec(stop/0 :: () -> 'ok'). stop() -> ok. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% init/3 creates one backing queue, returning its state. Names are %% local to the vhost, and must be unique. %% -%% init/3 should be called only from outside this module. -%% %% -spec(init/3 :: %% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) %% -> state()). init(_QueueName, _IsDurable, _Recover) -> - %% rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), - Result = #s { q = queue:new(), - p = dict:new(), - next_seq_id = 0, - txn_dict = dict:new() }, - %% rabbit_log:info("init ->~n ~p", [Result]), - callback([]), - Result. + #state { q = queue:new(), + q_len = 0, + pending_acks = dict:new(), + next_seq_id = 0, + txn_dict = dict:new() }. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% terminate/1 deletes all of a queue's pending acks, prior to -%% shutdown. -%% -%% terminate/1 should be called only from outside this module. +%% shutdown. Other calls might be made following terminate/1. %% %% -spec(terminate/1 :: (state()) -> state()). -terminate(S) -> - %% rabbit_log:info("terminate(~n ~p) ->", [S]), - Result = S #s { p = dict:new() }, - %% rabbit_log:info("terminate ->~n ~p", [Result]), - Result. +terminate(State) -> State #state { pending_acks = dict:new() }. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% delete_and_terminate/1 deletes all of a queue's enqueued msgs and -%% pending acks, prior to shutdown. -%% -%% delete_and_terminate/1 should be called only from outside this module. +%% pending acks, prior to shutdown. Other calls might be made +%% following delete_and_terminate/1. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). -delete_and_terminate(S) -> - %% rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), - Result = S #s { q = queue:new(), p = dict:new() }, - %% rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), - Result. +delete_and_terminate(State) -> + State #state { q = queue:new(), q_len = 0, pending_acks = dict:new() }. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% purge/1 deletes all of queue's enqueued msgs, returning the count %% of msgs purged. %% -%% purge/1 should be called only from outside this module. -%% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(S = #s { q = Q }) -> - %% rabbit_log:info("purge(~n ~p) ->", [S]), - Result = {queue:len(Q), S #s { q = queue:new() }}, - %% rabbit_log:info("purge ->~n ~p", [Result]), - Result. +purge(State = #state { q_len = QLen }) -> + {QLen, State #state { q = queue:new(), q_len = 0 }}. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% publish/3 publishes a msg. %% -%% publish/3 should be called only from outside this module. -%% %% -spec(publish/3 :: %% (rabbit_types:basic_message(), %% rabbit_types:message_properties(), %% state()) %% -> state()). -publish(Msg, Props, S) -> - %% rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), - Result = publish_state(Msg, Props, false, S), - %% rabbit_log:info("publish ->~n ~p", [Result]), +publish(Msg, Props, State) -> callback([{Msg, Props}]), - Result. + internal_publish(Msg, Props, false, State). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% publish_delivered/4 is called after a msg has been passed straight %% out to a client because the queue is empty. We update all state %% (e.g., next_seq_id) as if we had in fact handled the msg. %% -%% publish_delivered/4 should be called only from outside this module. -%% %% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), %% rabbit_types:message_properties(), state()) %% -> {ack(), state()}; @@ -230,22 +208,24 @@ publish(Msg, Props, S) -> %% rabbit_types:message_properties(), state()) %% -> {undefined, state()}). -publish_delivered(false, Msg, Props, S) -> - %% rabbit_log:info("publish_delivered(false,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), - Result = {undefined, S}, - %% rabbit_log:info("publish_delivered ->~n ~p", [Result]), +publish_delivered(false, Msg, Props, State) -> callback([{Msg, Props}]), - Result; -publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> - %% rabbit_log:info("publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), - Result = {SeqId, - (add_p((m(Msg, SeqId, Props)) #m { is_delivered = true }, S)) - #s { next_seq_id = SeqId + 1 }}, - %% rabbit_log:info("publish_delivered ->~n ~p", [Result]), + {undefined, State}; +publish_delivered(true, + Msg, + Props, + State = #state { next_seq_id = SeqId, + pending_acks = PendingAcks }) -> callback([{Msg, Props}]), - Result. + MsgStatus = #msg_status { seq_id = SeqId, + msg = Msg, + props = Props, + is_delivered = true }, + {SeqId, State #state { + next_seq_id = SeqId + 1, + pending_acks = dict:store(SeqId, MsgStatus, PendingAcks) }}. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% dropwhile/2 drops msgs from the head of the queue while there are %% msgs and while the supplied predicate returns true. %% @@ -253,29 +233,24 @@ publish_delivered(true, Msg, Props, S = #s { next_seq_id = SeqId }) -> %% calls rabbit_amqqueue_process:maybe_run_queue_via_backing_queue/2, %% which calls dropwhile/2. %% -%% dropwhile/2 should be called only from outside this module. +%% The only use of dropwhile/1 is to drop expired messages from the +%% head of the queue. %% %% -spec(dropwhile/2 :: %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) %% -> state()). -dropwhile(Pred, S) -> - %% rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), - {_, Result} = internal_dropwhile(Pred, S), - %% rabbit_log:info("dropwhile ->~n ~p", [Result]), +dropwhile(Pred, State) -> + {_, Result} = internal_dropwhile(Pred, State), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% fetch/2 produces the next msg, if any. %% -%% fetch/2 should be called only from outside this module. -%% %% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; %% (false, state()) -> {fetch_result(undefined), state()}). -fetch(AckRequired, S) -> - %% rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), - % +fetch(AckRequired, State) -> % TODO: This dropwhile is to help the testPublishAndGetWithExpiry % functional test pass. Although msg expiration is asynchronous by % design, that test depends on very quick expiration. That test is @@ -283,35 +258,23 @@ fetch(AckRequired, S) -> % failing) and should be rewritten, at which point this dropwhile % could be, well, dropped. Now = timer:now_diff(now(), {0,0,0}), - S1 = dropwhile( - fun (#message_properties{expiry = Expiry}) -> Expiry < Now end, - S), - Result = internal_fetch(AckRequired, S1), - %% rabbit_log:info("fetch ->~n ~p", [Result]), - callback([]), - Result. + State1 = dropwhile( + fun (#message_properties{expiry = Expiry}) -> Expiry < Now end, + State), + internal_fetch(AckRequired, State1). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% ack/2 acknowledges msgs named by SeqIds. %% -%% ack/2 should be called only from outside this module. -%% %% -spec(ack/2 :: ([ack()], state()) -> state()). -ack(SeqIds, S) -> - %% rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), - Result = internal_ack(SeqIds, S), - %% rabbit_log:info("ack ->~n ~p", [Result]), - callback([]), - Result. +ack(SeqIds, State) -> internal_ack(SeqIds, State). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% tx_publish/4 is a publish within an AMQP transaction. It stores the %% msg and its properties in the to_pub field of the txn, waiting to %% be committed. %% -%% tx_publish/4 should be called only from outside this module. -%% %% -spec(tx_publish/4 :: %% (rabbit_types:txn(), %% rabbit_types:basic_message(), @@ -319,48 +282,37 @@ ack(SeqIds, S) -> %% state()) %% -> state()). -tx_publish(Txn, Msg, Props, S) -> - %% rabbit_log:info("tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), - Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), - Result = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, S), - %% rabbit_log:info("tx_publish ->~n ~p", [Result]), - Result. +tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), + State #state { + txn_dict = + store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, TxnDict) }. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in %% the acks field of the txn, waiting to be committed. %% -%% tx_ack/3 should be called only from outside this module. -%% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). -tx_ack(Txn, SeqIds, S) -> - %% rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), - Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), - Result = store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, S), - %% rabbit_log:info("tx_ack ->~n ~p", [Result]), - Result. +tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), + State #state { + txn_dict = + store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, TxnDict) }. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% tx_rollback/2 aborts an AMQP transaction. %% -%% tx_rollback/2 should be called only from outside this module. -%% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). -tx_rollback(Txn, S) -> - %% rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), - #tx { to_ack = SeqIds } = lookup_tx(Txn, S), - Result = {SeqIds, erase_tx(Txn, S)}, - %% rabbit_log:info("tx_rollback ->~n ~p", [Result]), - Result. +tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> + #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), + {SeqIds, State #state { txn_dict = erase_tx(Txn, TxnDict) }}. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% tx_commit/4 commits an AMQP transaction. The F passed in is called -%% once the msgs have really been commited. This CPS permits the -%% possibility of commit coalescing. -%% -%% tx_commit/4 should be called only from outside this module. +%% once the msgs have really been commited (which does not matter +%% here). This CPS permits the possibility of commit coalescing. %% %% -spec(tx_commit/4 :: %% (rabbit_types:txn(), @@ -369,63 +321,48 @@ tx_rollback(Txn, S) -> %% state()) %% -> {[ack()], state()}). -tx_commit(Txn, F, PropsF, S) -> - %% rabbit_log:info("tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), - #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), - Result = {SeqIds, tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S))}, - F(), - %% rabbit_log:info("tx_commit ->~n ~p", [Result]), +tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), callback(Pubs), - Result. + F(), + {SeqIds, internal_tx_commit( + Pubs, + SeqIds, + PropsF, + State #state { txn_dict = erase_tx(Txn, TxnDict) })}. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% requeue/3 reinserts msgs into the queue that have already been %% delivered and were pending acknowledgement. %% -%% requeue/3 should be called only from outside this module. -%% %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). -requeue(SeqIds, PropsF, S) -> - %% rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), - Result = del_ps( - fun (#m { msg = Msg, props = Props }, Si) -> - publish_state(Msg, PropsF(Props), true, Si) - end, - SeqIds, - S), - %% rabbit_log:info("requeue ->~n ~p", [Result]), - callback([]), - Result. +requeue(SeqIds, PropsF, State) -> + del_ps( + fun (#msg_status { msg = Msg, props = Props }, Si) -> + internal_publish(Msg, PropsF(Props), true, Si) + end, + SeqIds, + State). -%%---------------------------------------------------------------------------- -%% len/1 returns the queue length. -%% -%% len/1 should be called only from outside this module. +%% ---------------------------------------------------------------------------- +%% len/1 returns the queue length. (The queue length is maintained in +%% the q_len field instead of being computed on demand, since the +%% rabbit_amqqueue_process module calls len/1 so frequently.) %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(#s { q = Q }) -> - %% rabbit_log:info("len(~n ~p) ->", [S]), - Result = queue:len(Q), - %% rabbit_log:info("len ->~n ~p", [Result]), - Result. +len(#state { q_len = QLen }) -> QLen. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% is_empty/1 returns true iff the queue is empty. %% -%% is_empty/1 should be called only from outside this module. -%% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(#s { q = Q }) -> - %% rabbit_log:info("is_empty(~n ~p) ->", [S]), - Result = queue:is_empty(Q), - %% rabbit_log:info("is_empty ->~n ~p", [Result]), - Result. +is_empty(#state { q_len = QLen }) -> QLen == 0. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% set_ram_duration_target informs us that the target is to have no %% more msgs in RAM than indicated by the duration and the current %% queue rates. It is ignored in this implementation. @@ -434,9 +371,9 @@ is_empty(#s { q = Q }) -> %% (('undefined' | 'infinity' | number()), state()) %% -> state()). -set_ram_duration_target(_, S) -> S. +set_ram_duration_target(_, State) -> State. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% ram_duration/1 optionally recalculates the duration internally %% (likely to be just update your internal rates), and report how many %% seconds the msgs in RAM represent given the current rates of the @@ -444,9 +381,9 @@ set_ram_duration_target(_, S) -> S. %% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). -ram_duration(S) -> {0, S}. +ram_duration(State) -> {0, State}. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% needs_idle_timeout/1 returns true iff idle_timeout should be called %% as soon as the queue process can manage (either on an empty %% mailbox, or when a timer fires). It always returns false in this @@ -456,189 +393,166 @@ ram_duration(S) -> {0, S}. needs_idle_timeout(_) -> false. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% idle_timeout/1 is called (eventually) after needs_idle_timeout %% returns true. It is a dummy in this implementation. %% %% -spec(idle_timeout/1 :: (state()) -> state()). -idle_timeout(S) -> S. +idle_timeout(State) -> State. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue %% hibernates. It is a dummy in this implementation. %% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -handle_pre_hibernate(S) -> S. +handle_pre_hibernate(State) -> State. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% status/1 exists for debugging and operational purposes, to be able %% to expose state via rabbitmqctl. %% -%% status/1 should be called only from outside this module. -%% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(#s { q = Q, p = P, next_seq_id = NextSeqId }) -> - %% rabbit_log:info("status(~n ~p) ->", [S]), - Result = - [{len, queue:len(Q)}, {next_seq_id, NextSeqId}, {acks, dict:size(P)}], - %% rabbit_log:info("status ->~n ~p", [Result]), - Result. +status(#state { q_len = QLen, + pending_acks = PendingAcks, + next_seq_id = NextSeqId }) -> + [{len, QLen}, {next_seq_id, NextSeqId}, {acks, dict:size(PendingAcks)}]. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% Helper functions. %% ---------------------------------------------------------------------------- %% internal_fetch/2 fetches the next msg, if any, generating a pending %% ack as necessary. --spec(internal_fetch(true, s()) -> {fetch_result(ack()), s()}; - (false, s()) -> {fetch_result(undefined), s()}). +-spec(internal_fetch(true, state()) -> {fetch_result(ack()), state()}; + (false, state()) -> {fetch_result(undefined), state()}). -internal_fetch(AckRequired, S) -> - case q_pop(S) of - {nothing, _} -> {empty, S}; - {{just, M}, S1} -> post_pop(AckRequired, M, S1) +internal_fetch(AckRequired, State = #state { q = Q, q_len = QLen }) -> + case queue:out(Q) of + {empty, _} -> {empty, State}; + {{value, MsgStatus}, Q1} -> + post_pop(AckRequired, + MsgStatus, + State #state { q = Q1, q_len = QLen - 1 }) end. --spec tx_commit_state([pub()], - [seq_id()], - message_properties_transformer(), - s()) -> - s(). +-spec internal_tx_commit([pub()], + [seq_id()], + message_properties_transformer(), + state()) -> + state(). -tx_commit_state(Pubs, SeqIds, PropsF, S) -> - S1 = internal_ack(SeqIds, S), +internal_tx_commit(Pubs, SeqIds, PropsF, State) -> + State1 = internal_ack(SeqIds, State), lists:foldl( - fun ({Msg, Props}, Si) -> publish_state(Msg, Props, false, Si) end, - S1, - [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). - --spec publish_state(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - s()) -> - s(). - -publish_state(Msg, - Props, - IsDelivered, - S = #s { q = Q, next_seq_id = SeqId }) -> - S #s { q = queue:in( - (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, Q), - next_seq_id = SeqId + 1 }. - --spec(internal_ack/2 :: ([seq_id()], s()) -> s()). - -internal_ack(SeqIds, S) -> del_ps(fun (_, Si) -> Si end, SeqIds, S). + fun ({Msg, Props}, Si) -> + internal_publish(Msg, PropsF(Props), false, Si) + end, + State1, + lists:reverse(Pubs)). + +-spec internal_publish(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). + +internal_publish(Msg, + Props, + IsDelivered, + State = + #state { q = Q, q_len = QLen, next_seq_id = SeqId }) -> + State #state { q = queue:in(#msg_status { seq_id = SeqId, + msg = Msg, + props = Props, + is_delivered = IsDelivered }, + Q), + q_len = QLen + 1, + next_seq_id = SeqId + 1 }. + +-spec(internal_ack/2 :: ([seq_id()], state()) -> state()). + +internal_ack(SeqIds, State) -> del_ps(fun (_, Si) -> Si end, SeqIds, State). -spec(internal_dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), s()) - -> {empty | ok, s()}). + (fun ((rabbit_types:message_properties()) -> boolean()), state()) + -> {empty | ok, state()}). -internal_dropwhile(Pred, S) -> - case q_peek(S) of - nothing -> {empty, S}; - {just, M = #m { props = Props }} -> +internal_dropwhile(Pred, State = #state { q = Q, q_len = QLen }) -> + case queue:out(Q) of + {empty, _} -> {empty, State}; + {{value, MsgStatus = #msg_status { props = Props }}, Q1} -> case Pred(Props) of - true -> {_, S1} = q_pop(S), - {_, S2} = post_pop(false, M, S1), - internal_dropwhile(Pred, S2); - false -> {ok, S} + true -> State1 = State #state { q = Q1, q_len = QLen - 1 }, + {_, State2} = post_pop(false, MsgStatus, State1), + internal_dropwhile(Pred, State2); + false -> {ok, State} end end. -%% q_pop pops a msg, if any, from the queue. - --spec q_pop(s()) -> {maybe(m()), s()}. - -q_pop(S = #s { q = Q }) -> - case queue:out(Q) of - {empty, _} -> {nothing, S}; - {{value, M}, Q1} -> {{just, M}, S #s { q = Q1 }} - end. - -%% q_peek returns the first msg, if any, from the queue. - --spec q_peek(s()) -> maybe(m()). - -q_peek(#s { q = Q }) -> - case queue:peek(Q) of - empty -> nothing; - {value, M} -> {just, M} - end. - -%% post_pop operates after q_pop, calling add_p if necessary. +%% post_pop operates after popping a msg_status from the queue, +%% adding a pending ack if necessary. --spec(post_pop(true, m(), s()) -> {fetch_result(ack()), s()}; - (false, m(), s()) -> {fetch_result(undefined), s()}). +-spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; + (false, msg_status(), state()) -> + {fetch_result(undefined), state()}). post_pop(true, - M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, - S = #s { q = Q }) -> - {{Msg, IsDelivered, SeqId, queue:len(Q)}, - add_p(M #m { is_delivered = true }, S)}; + MsgStatus = #msg_status { seq_id = SeqId, + msg = Msg, + is_delivered = IsDelivered }, + State = #state { q_len = QLen, pending_acks = PendingAcks }) -> + MsgStatus1 = MsgStatus #msg_status { is_delivered = true }, + {{Msg, IsDelivered, SeqId, QLen}, + State #state { + pending_acks = dict:store(SeqId, MsgStatus1, PendingAcks) }}; post_pop(false, - #m { msg = Msg, is_delivered = IsDelivered }, - S = #s { q = Q }) -> - {{Msg, IsDelivered, undefined, queue:len(Q)}, S}. - -%% add_p adds a pending ack to the P dict. + #msg_status { msg = Msg, is_delivered = IsDelivered }, + State = #state { q_len = QLen }) -> + {{Msg, IsDelivered, undefined, QLen}, State}. --spec add_p(m(), s()) -> s(). +%% del_ps deletes some number of pending acks from the pending_acks +%% dict, applying a function F after each msg is deleted. -add_p(M = #m { seq_id = SeqId }, S = #s { p = P }) -> - S #s { p = dict:store(SeqId, M, P) }. +-spec del_ps(fun ((msg_status(), state()) -> state()), [seq_id()], state()) -> + state(). -%% del_ps deletes some number of pending acks from the P dict, -%% applying a function F after each msg is deleted. - --spec del_ps(fun ((m(), s()) -> s()), [seq_id()], s()) -> s(). - -del_ps(F, SeqIds, S = #s { p = P }) -> +del_ps(F, SeqIds, State) -> lists:foldl( - fun (SeqId, Si) -> - {ok, M} = dict:find(SeqId, P), - F(M, Si #s { p = dict:erase(SeqId, P) }) + fun (SeqId, StateI = #state { pending_acks = PendingAcks }) -> + MsgStatus = dict:fetch(SeqId, PendingAcks), + F(MsgStatus, StateI #state { + pending_acks = dict:erase(SeqId, PendingAcks) }) end, - S, + State, SeqIds). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% Pure helper functions. %% ---------------------------------------------------------------------------- --spec m(rabbit_types:basic_message(), - seq_id(), - rabbit_types:message_properties()) -> - m(). +-spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). -m(Msg, SeqId, Props) -> - #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. - --spec lookup_tx(rabbit_types:txn(), s()) -> tx(). - -lookup_tx(Txn, #s { txn_dict = TxnDict }) -> +lookup_tx(Txn, TxnDict) -> case dict:find(Txn, TxnDict) of error -> #tx { to_pub = [], to_ack = [] }; {ok, Tx} -> Tx end. --spec store_tx(rabbit_types:txn(), tx(), s()) -> s(). +-spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). -store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> - S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. +store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). --spec erase_tx(rabbit_types:txn(), s()) -> s(). +-spec erase_tx(rabbit_types:txn(), dict()) -> dict(). -erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> - S #s { txn_dict = dict:erase(Txn, TxnDict) }. +erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% callback/1 calls back into the broker to confirm msgs, and expire %% msgs, and quite possibly to perform yet other side-effects. It's @@ -648,13 +562,12 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> callback(Pubs) -> Guids = - lists:append( - lists:map(fun ({#basic_message { guid = Guid }, - #message_properties { needs_confirming = true }}) - -> [Guid]; - (_) -> [] - end, - Pubs)), - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - self(), fun (S) -> {Guids, S} end), - ok. + [Guid || {#basic_message { guid = Guid }, + #message_properties { needs_confirming = true }} <- Pubs], + case Guids of + [] -> ok; + _ -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + self(), fun (State) -> {Guids, State} end), + ok + end. -- cgit v1.2.1 From 21f916c9fdbe1cdb7d6ef40fe6695919caddd88d Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 15 Mar 2011 17:34:20 +0000 Subject: Have a separate idea of reader pid and connection pid in the channel (since in the direct client they're different things). Now direct connections and channels match up in mgmt. --- src/rabbit_channel.erl | 39 ++++++++++++++++++++------------------- src/rabbit_channel_sup.erl | 15 ++++++++------- src/rabbit_direct.erl | 14 +++++++------- 3 files changed, 35 insertions(+), 33 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index da103284..b27f6886 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -20,7 +20,7 @@ -behaviour(gen_server2). --export([start_link/9, do/2, do/3, flush/1, shutdown/1]). +-export([start_link/10, do/2, do/3, flush/1, shutdown/1]). -export([send_command/2, deliver/4, flushed/2, confirm/2]). -export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). -export([emit_stats/1, ready_for_close/1]). @@ -29,9 +29,9 @@ handle_info/2, handle_pre_hibernate/1, prioritise_call/3, prioritise_cast/2]). --record(ch, {state, protocol, channel, reader_pid, writer_pid, limiter_pid, - start_limiter_fun, transaction_id, tx_participants, next_tag, - uncommitted_ack_q, unacked_message_q, +-record(ch, {state, protocol, channel, reader_pid, writer_pid, connection_pid, + limiter_pid, start_limiter_fun, transaction_id, tx_participants, + next_tag, uncommitted_ack_q, unacked_message_q, user, virtual_host, most_recently_declared_queue, consumer_mapping, blocking, consumer_monitors, queue_collector_pid, stats_timer, confirm_enabled, publish_seqno, unconfirmed_mq, @@ -67,8 +67,8 @@ -type(channel_number() :: non_neg_integer()). --spec(start_link/9 :: - (channel_number(), pid(), pid(), rabbit_types:protocol(), +-spec(start_link/10 :: + (channel_number(), pid(), pid(), pid(), rabbit_types:protocol(), rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), pid(), fun ((non_neg_integer()) -> rabbit_types:ok(pid()))) -> rabbit_types:ok_pid_or_error()). @@ -96,11 +96,11 @@ %%---------------------------------------------------------------------------- -start_link(Channel, ReaderPid, WriterPid, Protocol, User, VHost, Capabilities, - CollectorPid, StartLimiterFun) -> +start_link(Channel, ReaderPid, WriterPid, ConnectionPid, Protocol, User, VHost, + Capabilities, CollectorPid, StartLimiterFun) -> gen_server2:start_link( - ?MODULE, [Channel, ReaderPid, WriterPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun], []). + ?MODULE, [Channel, ReaderPid, WriterPid, ConnectionPid, Protocol, User, + VHost, Capabilities, CollectorPid, StartLimiterFun], []). do(Pid, Method) -> do(Pid, Method, none). @@ -154,8 +154,8 @@ ready_for_close(Pid) -> %%--------------------------------------------------------------------------- -init([Channel, ReaderPid, WriterPid, Protocol, User, VHost, Capabilities, - CollectorPid, StartLimiterFun]) -> +init([Channel, ReaderPid, WriterPid, ConnectionPid, Protocol, User, VHost, + Capabilities, CollectorPid, StartLimiterFun]) -> process_flag(trap_exit, true), ok = pg_local:join(rabbit_channels, self()), StatsTimer = rabbit_event:init_stats_timer(), @@ -164,6 +164,7 @@ init([Channel, ReaderPid, WriterPid, Protocol, User, VHost, Capabilities, channel = Channel, reader_pid = ReaderPid, writer_pid = WriterPid, + connection_pid = ConnectionPid, limiter_pid = undefined, start_limiter_fun = StartLimiterFun, transaction_id = none, @@ -1410,13 +1411,13 @@ coalesce_and_send(MsgSeqNos, MkMsgFun, infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. -i(pid, _) -> self(); -i(connection, #ch{reader_pid = ReaderPid}) -> ReaderPid; -i(number, #ch{channel = Channel}) -> Channel; -i(user, #ch{user = User}) -> User#user.username; -i(vhost, #ch{virtual_host = VHost}) -> VHost; -i(transactional, #ch{transaction_id = TxnKey}) -> TxnKey =/= none; -i(confirm, #ch{confirm_enabled = CE}) -> CE; +i(pid, _) -> self(); +i(connection, #ch{connection_pid = Connection}) -> Connection; +i(number, #ch{channel = Channel}) -> Channel; +i(user, #ch{user = User}) -> User#user.username; +i(vhost, #ch{virtual_host = VHost}) -> VHost; +i(transactional, #ch{transaction_id = TxnKey}) -> TxnKey =/= none; +i(confirm, #ch{confirm_enabled = CE}) -> CE; i(consumer_count, #ch{consumer_mapping = ConsumerMapping}) -> dict:size(ConsumerMapping); i(messages_unconfirmed, #ch{unconfirmed_mq = UMQ}) -> diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl index 8175ad80..7eec0818 100644 --- a/src/rabbit_channel_sup.erl +++ b/src/rabbit_channel_sup.erl @@ -58,21 +58,22 @@ start_link({tcp, Sock, Channel, FrameMax, ReaderPid, Protocol, User, VHost, supervisor2:start_child( SupPid, {channel, {rabbit_channel, start_link, - [Channel, ReaderPid, WriterPid, Protocol, User, VHost, - Capabilities, Collector, start_limiter_fun(SupPid)]}, + [Channel, ReaderPid, WriterPid, ReaderPid, Protocol, + User, VHost, Capabilities, Collector, + start_limiter_fun(SupPid)]}, intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), {ok, AState} = rabbit_command_assembler:init(Protocol), {ok, SupPid, {ChannelPid, AState}}; -start_link({direct, Channel, ClientChannelPid, Protocol, User, VHost, - Capabilities, Collector}) -> +start_link({direct, Channel, ClientChannelPid, ConnectionPid, Protocol, User, + VHost, Capabilities, Collector}) -> {ok, SupPid} = supervisor2:start_link(?MODULE, []), {ok, ChannelPid} = supervisor2:start_child( SupPid, {channel, {rabbit_channel, start_link, - [Channel, ClientChannelPid, ClientChannelPid, Protocol, - User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, + [Channel, ClientChannelPid, ClientChannelPid, + ConnectionPid, Protocol, User, VHost, Capabilities, + Collector, start_limiter_fun(SupPid)]}, intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), {ok, SupPid, {ChannelPid, none}}. diff --git a/src/rabbit_direct.erl b/src/rabbit_direct.erl index a2693c69..568cbea3 100644 --- a/src/rabbit_direct.erl +++ b/src/rabbit_direct.erl @@ -16,7 +16,7 @@ -module(rabbit_direct). --export([boot/0, connect/4, start_channel/7]). +-export([boot/0, connect/4, start_channel/8]). -include("rabbit.hrl"). @@ -28,8 +28,8 @@ -spec(connect/4 :: (binary(), binary(), binary(), rabbit_types:protocol()) -> {'ok', {rabbit_types:user(), rabbit_framing:amqp_table()}}). --spec(start_channel/7 :: - (rabbit_channel:channel_number(), pid(), rabbit_types:protocol(), +-spec(start_channel/8 :: + (rabbit_channel:channel_number(), pid(), pid(), rabbit_types:protocol(), rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), pid()) -> {'ok', pid()}). @@ -69,11 +69,11 @@ connect(Username, Password, VHost, Protocol) -> {error, broker_not_found_on_node} end. -start_channel(Number, ClientChannelPid, Protocol, User, VHost, Capabilities, - Collector) -> +start_channel(Number, ClientChannelPid, ConnectionPid, Protocol, User, VHost, + Capabilities, Collector) -> {ok, _, {ChannelPid, _}} = supervisor2:start_child( rabbit_direct_client_sup, - [{direct, Number, ClientChannelPid, Protocol, User, VHost, - Capabilities, Collector}]), + [{direct, Number, ClientChannelPid, ConnectionPid, Protocol, User, + VHost, Capabilities, Collector}]), {ok, ChannelPid}. -- cgit v1.2.1 From b7444465c0ec648ee75d55b91b389f0ed76bec18 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 15 Mar 2011 15:42:42 -0700 Subject: Partthrough through renaming changes in rabbit_mnesia_queue. --- Makefile | 4 +- src/rabbit_mnesia_queue.erl | 595 ++++++++++++++++++++++---------------------- src/rabbit_ram_queue.erl | 2 +- 3 files changed, 296 insertions(+), 305 deletions(-) diff --git a/Makefile b/Makefile index e0ccf732..301e83e4 100644 --- a/Makefile +++ b/Makefile @@ -110,9 +110,9 @@ $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_c dialyze: $(BEAM_TARGETS) $(BASIC_PLT) dialyzer --plt $(BASIC_PLT) --no_native \ + -Wunmatched_returns -Werror_handling -Wbehaviours \ + -Wunderspecs \ -Wrace_conditions $(BEAM_TARGETS) -# -Wunmatched_returns -Werror_handling -Wbehaviours \ -# -Wunderspecs \ # rabbit.plt is used by rabbitmq-erlang-client's dialyze make target create-plt: $(RABBIT_PLT) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 38ae6f98..6021147c 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -23,7 +23,7 @@ set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, status/1]). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% This is a simple implementation of the rabbit_backing_queue %% behavior, with all msgs in Mnesia. %% @@ -31,10 +31,10 @@ %% module in the middle of the server tree.... %% ---------------------------------------------------------------------------- -%%---------------------------------------------------------------------------- -%% This module wraps msgs into Ms for internal use, including -%% additional information. Pending acks are also recorded as Ms. Msgs -%% and pending acks are both stored in Mnesia. +%% ---------------------------------------------------------------------------- +%% This module wraps msgs into msg_status records for internal use, +%% including additional information. Pending acks are also recorded as +%% msg_status records. These are both stored in Mnesia. %% %% All queues are durable in this version, and all msgs are treated as %% persistent. (This may break some clients and some tests for @@ -57,12 +57,12 @@ -behaviour(rabbit_backing_queue). -%% The S record is the in-RAM AMQP queue state. It contains the names -%% of three Mnesia queues; the next_seq_id and next_out_id (also +%% The state record is the in-RAM AMQP queue state. It contains the +%% names of three Mnesia queues; the next_seq_id and next_out_id (also %% stored in the N table in Mnesia); and the AMQP transaction dict %% (which can be dropped on a crash). --record(s, % The in-RAM queue state +-record(state, % The in-RAM queue state { q_table, % The Mnesia queue table name p_table, % The Mnesia pending-ack table name n_table, % The Mnesia next_(seq_id, out_id) table name @@ -71,12 +71,12 @@ txn_dict % In-progress txn->tx map }). -%% An M record is a wrapper around a msg. It contains a seq_id, -%% assigned when the msg is published; the msg itself; the msg's -%% props, as presented by the client or as transformed by the client; -%% and an is-delivered flag, for reporting. +%% An msg_status record is a wrapper around a msg. It contains a +%% seq_id, assigned when the msg is published; the msg itself; the +%% msg's props, as presented by the client or as transformed by the +%% client; and an is-delivered flag, for reporting. --record(m, % A wrapper aroung a msg +-record(msg_status, % A wrapper aroung a msg { seq_id, % The seq_id for the msg msg, % The msg itself props, % The msg properties @@ -96,29 +96,31 @@ }). %% A Q record is a msg stored in the Q table in Mnesia. It is indexed -%% by the out-id, which orders msgs; and contains the M itself. We -%% push Ms with a new high out_id, and pop the M with the lowest -%% out_id. (We cannot use the seq_id for ordering since msgs may be -%% requeued while keeping the same seq_id.) +%% by the out-id, which orders msgs; and contains the msg_status +%% record itself. We push msg_status records with a new high out_id, +%% and pop the msg_status record with the lowest out_id. (We cannot +%% use the seq_id for ordering since msgs may be requeued while +%% keeping the same seq_id.) -record(q_record, % Q records in Mnesia { out_id, % The key: The out_id - m % The value: The M + msg_status % The value: The msg_status record }). %% A P record is a pending-ack stored in the P table in Mnesia. It is -%% indexed by the seq_id, and contains the M itself. It is randomly -%% accssed by seq_id. +%% indexed by the seq_id, and contains the msg_status record +%% itself. It is randomly accessed by seq_id. -record(p_record, % P records in Mnesia { seq_id, % The key: The seq_id - m % The value: The M + msg_status % The value: The msg_status record }). %% An N record holds counters in the single row in the N table in -%% Mnesia. It contains the next_seq_id and next_out_id from the S, so -%% that they can be recovered after a crash. They are updated on every -%% Mnesia transaction that updates them in the in-RAM S. +%% Mnesia. It contains the next_seq_id and next_out_id from the state +%% record, so that they can be recovered after a crash. They are +%% updated on every Mnesia transaction that updates them in the in-RAM +%% State. -record(n_record, % next_seq_id & next_out_id record in Mnesia { key, % The key: the atom 'n' @@ -128,7 +130,7 @@ -include("rabbit.hrl"). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% BUG: Restore -ifdef, -endif. @@ -139,18 +141,17 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id()). --type(s() :: #s { q_table :: atom(), - p_table :: atom(), - n_table :: atom(), - next_seq_id :: seq_id(), - next_out_id :: non_neg_integer(), - txn_dict :: dict() }). --type(state() :: s()). +-type(state() :: #state { q_table :: atom(), + p_table :: atom(), + n_table :: atom(), + next_seq_id :: seq_id(), + next_out_id :: non_neg_integer(), + txn_dict :: dict() }). --type(m() :: #m { msg :: rabbit_types:basic_message(), - seq_id :: seq_id(), - props :: rabbit_types:message_properties(), - is_delivered :: boolean() }). +-type(msg_status() :: #msg_status { msg :: rabbit_types:basic_message(), + seq_id :: seq_id(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). -type(tx() :: #tx { to_pub :: [pub()], to_ack :: [seq_id()] }). @@ -159,10 +160,10 @@ rabbit_types:message_properties() }). -type(q_record() :: #q_record { out_id :: non_neg_integer(), - m :: m() }). + msg_status :: msg_status() }). -type(p_record() :: #p_record { seq_id :: seq_id(), - m :: m() }). + msg_status :: msg_status() }). -type(n_record() :: #n_record { key :: 'n', next_seq_id :: seq_id(), @@ -172,22 +173,25 @@ %% -endif. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% Public API %% -%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here. +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here +%% for clarity. -%%---------------------------------------------------------------------------- -%% start/1 promises that a list of (durable) queues will be started in +%% ---------------------------------------------------------------------------- +%% start/1 predicts that a list of (durable) queues will be started in %% the near future. This lets us perform early checking of the %% consistency of those queues, and initialize other shared -%% resources. It is ignored in this implementation. +%% resources. These queues might not in fact be started, and other +%% queues might be started instead. It is ignored in this +%% implementation. %% %% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). start(_DurableQueues) -> ok. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% stop/0 tears down all state/resources upon shutdown. It might not %% be called. It is ignored in this implementation. %% @@ -195,7 +199,7 @@ start(_DurableQueues) -> ok. stop() -> ok. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% init/3 creates one backing queue, returning its state. Names are %% local to the vhost, and must be unique. %% @@ -212,7 +216,6 @@ stop() -> ok. %% Mnesia transaction! init(QueueName, IsDurable, Recover) -> - %% rabbit_log:info("init(~n ~p,~n ~p,~n ~p) ->", [QueueName, IsDurable, Recover]), {QTable, PTable, NTable} = tables(QueueName), case Recover of false -> _ = mnesia:delete_table(QTable), @@ -240,59 +243,55 @@ init(QueueName, IsDurable, Recover) -> next_out_id = NextOutId0 }] -> {NextSeqId0, NextOutId0} end, - RS = #s { q_table = QTable, - p_table = PTable, - n_table = NTable, - next_seq_id = NextSeqId, - next_out_id = NextOutId, - txn_dict = dict:new() }, - save(RS), - RS + RState = #state { q_table = QTable, + p_table = PTable, + n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId, + txn_dict = dict:new() }, + save(RState), + RState end), - %% rabbit_log:info("init ->~n ~p", [Result]), - callback([]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% terminate/1 deletes all of a queue's pending acks, prior to -%% shutdown. +%% shutdown. Other calls might be made following terminate/1. %% %% terminate/1 creates an Mnesia transaction to run in, and therefore %% may not be called from inside another Mnesia transaction. %% %% -spec(terminate/1 :: (state()) -> state()). -terminate(S = #s { q_table = QTable, p_table = PTable, n_table = NTable }) -> - %% rabbit_log:info("terminate(~n ~p) ->", [S]), +terminate(State = #state { + q_table = QTable, p_table = PTable, n_table = NTable }) -> {atomic, Result} = - mnesia:transaction(fun () -> clear_table(PTable), S end), + mnesia:transaction(fun () -> clear_table(PTable), State end), mnesia:dump_tables([QTable, PTable, NTable]), - %% rabbit_log:info("terminate ->~n ~p", [Result]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% delete_and_terminate/1 deletes all of a queue's enqueued msgs and -%% pending acks, prior to shutdown. +%% pending acks, prior to shutdown. Other calls might be made +%% following delete_and_terminate/1. %% %% delete_and_terminate/1 creates an Mnesia transaction to run in, and %% therefore may not be called from inside another Mnesia transaction. %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). -delete_and_terminate(S = #s { q_table = QTable, - p_table = PTable, - n_table = NTable }) -> - %% rabbit_log:info("delete_and_terminate(~n ~p) ->", [S]), +delete_and_terminate(State = #state { q_table = QTable, + p_table = PTable, + n_table = NTable }) -> {atomic, Result} = mnesia:transaction(fun () -> clear_table(QTable), clear_table(PTable), - S + State end), mnesia:dump_tables([QTable, PTable, NTable]), - %% rabbit_log:info("delete_and_terminate ->~n ~p", [Result]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% purge/1 deletes all of queue's enqueued msgs, returning the count %% of msgs purged. %% @@ -301,17 +300,15 @@ delete_and_terminate(S = #s { q_table = QTable, %% %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). -purge(S = #s { q_table = QTable }) -> - %% rabbit_log:info("purge(~n ~p) ->", [S]), +purge(State = #state { q_table = QTable }) -> {atomic, Result} = mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), clear_table(QTable), - {LQ, S} + {LQ, State} end), - %% rabbit_log:info("purge ->~n ~p", [Result]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% publish/3 publishes a msg. %% %% publish/3 creates an Mnesia transaction to run in, and therefore @@ -323,18 +320,17 @@ purge(S = #s { q_table = QTable }) -> %% state()) %% -> state()). -publish(Msg, Props, S) -> - %% rabbit_log:info("publish(~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), +publish(Msg, Props, State) -> {atomic, Result} = - mnesia:transaction(fun () -> RS = publish_state(Msg, Props, false, S), - save(RS), - RS - end), - %% rabbit_log:info("publish ->~n ~p", [Result]), + mnesia:transaction( + fun () -> RState = internal_publish(Msg, Props, false, State), + save(RState), + RState + end), callback([{Msg, Props}]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% publish_delivered/4 is called after a msg has been passed straight %% out to a client because the queue is empty. We update all state %% (e.g., next_seq_id) as if we had in fact handled the msg. @@ -349,31 +345,28 @@ publish(Msg, Props, S) -> %% rabbit_types:message_properties(), state()) %% -> {undefined, state()}). -publish_delivered(false, Msg, Props, S) -> - %% rabbit_log:info("publish_delivered(false,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), - Result = {undefined, S}, - %% rabbit_log:info("publish_delivered ->~n ~p", [Result]), +publish_delivered(false, Msg, Props, State) -> + Result = {undefined, State}, callback([{Msg, Props}]), Result; publish_delivered(true, Msg, Props, - S = #s { next_seq_id = SeqId, next_out_id = OutId }) -> - %% rabbit_log:info("publish_delivered(true,~n ~p,~n ~p,~n ~p) ->", [Msg, Props, S]), + State = + #state { next_seq_id = SeqId, next_out_id = OutId }) -> {atomic, Result} = mnesia:transaction( fun () -> - add_p((m(Msg, SeqId, Props)) #m { is_delivered = true }, S), - RS = S #s { next_seq_id = SeqId + 1, - next_out_id = OutId + 1 }, - save(RS), - {SeqId, RS} + add_p(m(SeqId, Msg, Props, true), State), + RState = State #state { next_seq_id = SeqId + 1, + next_out_id = OutId + 1 }, + save(RState), + {SeqId, RState} end), - %% rabbit_log:info("publish_delivered ->~n ~p", [Result]), callback([{Msg, Props}]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% dropwhile/2 drops msgs from the head of the queue while there are %% msgs and while the supplied predicate returns true. %% @@ -390,17 +383,15 @@ publish_delivered(true, %% (fun ((rabbit_types:message_properties()) -> boolean()), state()) %% -> state()). -dropwhile(Pred, S) -> - %% rabbit_log:info("dropwhile(~n ~p,~n ~p) ->", [Pred, S]), - {atomic, {_, Result}} = - mnesia:transaction(fun () -> {Atom, RS} = internal_dropwhile(Pred, S), - save(RS), - {Atom, RS} +dropwhile(Pred, State) -> + {atomic, Result} = + mnesia:transaction(fun () -> RState = internal_dropwhile(Pred, State), + save(RState), + RState end), - %% rabbit_log:info("dropwhile ->~n ~p", [Result]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% fetch/2 produces the next msg, if any. %% %% fetch/2 creates an Mnesia transaction to run in, and therefore may @@ -409,27 +400,22 @@ dropwhile(Pred, S) -> %% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; %% (false, state()) -> {fetch_result(undefined), state()}). -fetch(AckRequired, S) -> - %% rabbit_log:info("fetch(~n ~p,~n ~p) ->", [AckRequired, S]), - % - % TODO: This dropwhile is to help the testPublishAndGetWithExpiry - % functional test pass. Although msg expiration is asynchronous by - % design, that test depends on very quick expiration. That test is - % therefore nondeterministic (sometimes passing, sometimes - % failing) and should be rewritten, at which point this dropwhile - % could be, well, dropped. +fetch(AckRequired, State) -> + %% TODO: This dropwhile is to help the testPublishAndGetWithExpiry + %% functional test pass. Although msg expiration is asynchronous + %% by design, that test depends on very quick expiration. That + %% test is therefore nondeterministic (sometimes passing, + %% sometimes failing) and should be rewritten, at which point this + %% dropwhile could be, well, dropped. Now = timer:now_diff(now(), {0,0,0}), S1 = dropwhile( fun (#message_properties{expiry = Expiry}) -> Expiry < Now end, - S), + State), {atomic, FR} = mnesia:transaction(fun () -> internal_fetch(AckRequired, S1) end), - Result = {FR, S1}, - %% rabbit_log:info("fetch ->~n ~p", [Result]), - callback([]), - Result. + {FR, S1}. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% ack/2 acknowledges msgs named by SeqIds. %% %% ack/2 creates an Mnesia transaction to run in, and therefore may @@ -437,18 +423,15 @@ fetch(AckRequired, S) -> %% %% -spec(ack/2 :: ([ack()], state()) -> state()). -ack(SeqIds, S) -> - %% rabbit_log:info("ack(~n ~p,~n ~p) ->", [SeqIds, S]), +ack(SeqIds, State) -> {atomic, Result} = - mnesia:transaction(fun () -> RS = internal_ack(SeqIds, S), - save(RS), - RS + mnesia:transaction(fun () -> RState = internal_ack(SeqIds, State), + save(RState), + RState end), - %% rabbit_log:info("ack ->~n ~p", [Result]), - callback([]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% tx_publish/4 is a publish within an AMQP transaction. It stores the %% msg and its properties in the to_pub field of the txn, waiting to %% be committed. @@ -463,21 +446,23 @@ ack(SeqIds, S) -> %% state()) %% -> state()). -tx_publish(Txn, Msg, Props, S) -> - %% rabbit_log:info("tx_publish(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, Msg, Props, S]), +tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict }) -> {atomic, Result} = mnesia:transaction( - fun () -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, S), - RS = store_tx(Txn, - Tx #tx { to_pub = [{Msg, Props} | Pubs] }, - S), - save(RS), - RS + fun () -> + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), + RState = + State #state { + txn_dict = store_tx( + Txn, + Tx #tx { to_pub = [{Msg, Props} | Pubs] }, + TxnDict) }, + save(RState), + RState end), - %% rabbit_log:info("tx_publish ->~n ~p", [Result]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in %% the acks field of the txn, waiting to be committed. %% @@ -486,20 +471,23 @@ tx_publish(Txn, Msg, Props, S) -> %% %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). -tx_ack(Txn, SeqIds, S) -> - %% rabbit_log:info("tx_ack(~n ~p,~n ~p,~n ~p) ->", [Txn, SeqIds, S]), +tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> {atomic, Result} = mnesia:transaction( - fun () -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, S), - RS = store_tx( - Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, S), - save(RS), - RS - end), - %% rabbit_log:info("tx_ack ->~n ~p", [Result]), + fun () -> + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), + RState = + State #state { + txn_dict = store_tx( + Txn, + Tx #tx { to_ack = SeqIds ++ SeqIds0 }, + TxnDict) }, + save(RState), + RState + end), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% tx_rollback/2 aborts an AMQP transaction. %% %% tx_rollback/2 creates an Mnesia transaction to run in, and @@ -507,19 +495,18 @@ tx_ack(Txn, SeqIds, S) -> %% %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). -tx_rollback(Txn, S) -> - %% rabbit_log:info("tx_rollback(~n ~p,~n ~p) ->", [Txn, S]), +tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> {atomic, Result} = - mnesia:transaction(fun () -> - #tx { to_ack = SeqIds } = lookup_tx(Txn, S), - RS = erase_tx(Txn, S), - save(RS), - {SeqIds, RS} - end), - %% rabbit_log:info("tx_rollback ->~n ~p", [Result]), + mnesia:transaction( + fun () -> + #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), + RState = State #state { txn_dict = erase_tx(Txn, TxnDict) }, + save(RState), + {SeqIds, RState} + end), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% tx_commit/4 commits an AMQP transaction. The F passed in is called %% once the msgs have really been commited. This CPS permits the %% possibility of commit coalescing. @@ -535,23 +522,26 @@ tx_rollback(Txn, S) -> %% state()) %% -> {[ack()], state()}). -tx_commit(Txn, F, PropsF, S) -> - %% rabbit_log:info("tx_commit(~n ~p,~n ~p,~n ~p,~n ~p) ->", [Txn, F, PropsF, S]), +tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> {atomic, {Result, Pubs}} = mnesia:transaction( fun () -> - #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, S), - RS = - tx_commit_state(Pubs, SeqIds, PropsF, erase_tx(Txn, S)), - save(RS), - {{SeqIds, RS}, Pubs} + #tx { to_ack = SeqIds, to_pub = Pubs } = + lookup_tx(Txn, TxnDict), + RState = + internal_tx_commit( + Pubs, + SeqIds, + PropsF, + State #state { txn_dict = erase_tx(Txn, TxnDict) }), + save(RState), + {{SeqIds, RState}, Pubs} end), F(), - %% rabbit_log:info("tx_commit ->~n ~p", [Result]), callback(Pubs), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% requeue/3 reinserts msgs into the queue that have already been %% delivered and were pending acknowledgement. %% @@ -561,25 +551,24 @@ tx_commit(Txn, F, PropsF, S) -> %% -spec(requeue/3 :: %% ([ack()], message_properties_transformer(), state()) -> state()). -requeue(SeqIds, PropsF, S) -> - %% rabbit_log:info("requeue(~n ~p,~n ~p,~n ~p) ->", [SeqIds, PropsF, S]), +requeue(SeqIds, PropsF, State) -> {atomic, Result} = mnesia:transaction( - fun () -> RS = + fun () -> RState = del_ps( - fun (#m { msg = Msg, props = Props }, Si) -> - publish_state(Msg, PropsF(Props), true, Si) + fun (#msg_status { msg = Msg, props = Props }, + StateI) -> + internal_publish( + Msg, PropsF(Props), true, StateI) end, SeqIds, - S), - save(RS), - RS + State), + save(RState), + RState end), - %% rabbit_log:info("requeue ->~n ~p", [Result]), - callback([]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% len/1 returns the queue length. %% %% len/1 creates an Mnesia transaction to run in, and therefore may @@ -587,14 +576,12 @@ requeue(SeqIds, PropsF, S) -> %% %% -spec(len/1 :: (state()) -> non_neg_integer()). -len(#s { q_table = QTable }) -> - %% rabbit_log:info("len(~n ~p) ->", [S]), +len(#state { q_table = QTable }) -> {atomic, Result} = mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), - %% rabbit_log:info("len ->~n ~p", [Result]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% is_empty/1 returns true iff the queue is empty. %% %% is_empty/1 creates an Mnesia transaction to run in, and therefore @@ -602,14 +589,12 @@ len(#s { q_table = QTable }) -> %% %% -spec(is_empty/1 :: (state()) -> boolean()). -is_empty(#s { q_table = QTable }) -> - %% rabbit_log:info("is_empty(~n ~p) ->", [S]), +is_empty(#state { q_table = QTable }) -> {atomic, Result} = mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), - %% rabbit_log:info("is_empty ->~n ~p", [Result]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% set_ram_duration_target informs us that the target is to have no %% more msgs in RAM than indicated by the duration and the current %% queue rates. It is ignored in this implementation. @@ -618,9 +603,9 @@ is_empty(#s { q_table = QTable }) -> %% (('undefined' | 'infinity' | number()), state()) %% -> state()). -set_ram_duration_target(_, S) -> S. +set_ram_duration_target(_, State) -> State. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% ram_duration/1 optionally recalculates the duration internally %% (likely to be just update your internal rates), and report how many %% seconds the msgs in RAM represent given the current rates of the @@ -628,9 +613,9 @@ set_ram_duration_target(_, S) -> S. %% %% -spec(ram_duration/1 :: (state()) -> {number(), state()}). -ram_duration(S) -> {0, S}. +ram_duration(State) -> {0, State}. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% needs_idle_timeout/1 returns true iff idle_timeout should be called %% as soon as the queue process can manage (either on an empty %% mailbox, or when a timer fires). It always returns false in this @@ -640,23 +625,23 @@ ram_duration(S) -> {0, S}. needs_idle_timeout(_) -> false. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% idle_timeout/1 is called (eventually) after needs_idle_timeout %% returns true. It is a dummy in this implementation. %% %% -spec(idle_timeout/1 :: (state()) -> state()). -idle_timeout(S) -> S. +idle_timeout(State) -> State. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% handle_pre_hibernate/1 is called immediately before the queue %% hibernates. It is a dummy in this implementation. %% %% -spec(handle_pre_hibernate/1 :: (state()) -> state()). -handle_pre_hibernate(S) -> S. +handle_pre_hibernate(State) -> State. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% status/1 exists for debugging and operational purposes, to be able %% to expose state via rabbitmqctl. %% @@ -665,20 +650,18 @@ handle_pre_hibernate(S) -> S. %% %% -spec(status/1 :: (state()) -> [{atom(), any()}]). -status(#s { q_table = QTable, - p_table = PTable, - next_seq_id = NextSeqId }) -> - %% rabbit_log:info("status(~n ~p) ->", [S]), +status(#state { q_table = QTable, + p_table = PTable, + next_seq_id = NextSeqId }) -> {atomic, Result} = mnesia:transaction( fun () -> LQ = length(mnesia:all_keys(QTable)), LP = length(mnesia:all_keys(PTable)), [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] end), - %% rabbit_log:info("status ->~n ~p", [Result]), Result. -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% Monadic helper functions for inside transactions. %% ---------------------------------------------------------------------------- @@ -709,7 +692,7 @@ clear_table(Table) -> '$end_of_table' -> ok; Key -> mnesia:delete(Table, Key, 'write'), clear_table(Table) - end. + end. %% Delete non-persistent msgs after a restart. @@ -718,10 +701,11 @@ clear_table(Table) -> delete_nonpersistent_msgs(QTable) -> lists:foreach( fun (Key) -> - [#q_record { out_id = Key, m = M }] = + [#q_record { out_id = Key, msg_status = MsgStatus }] = mnesia:read(QTable, Key, 'read'), - case M of - #m { msg = #basic_message { is_persistent = true }} -> ok; + case MsgStatus of + #msg_status { msg = #basic_message { + is_persistent = true }} -> ok; _ -> mnesia:delete(QTable, Key, 'write') end end, @@ -730,148 +714,158 @@ delete_nonpersistent_msgs(QTable) -> %% internal_fetch/2 fetches the next msg, if any, inside an Mnesia %% transaction, generating a pending ack as necessary. --spec(internal_fetch(true, s()) -> fetch_result(ack()); - (false, s()) -> fetch_result(undefined)). +-spec(internal_fetch(true, state()) -> fetch_result(ack()); + (false, state()) -> fetch_result(undefined)). -internal_fetch(AckRequired, S) -> - case q_pop(S) of +internal_fetch(AckRequired, State) -> + case q_pop(State) of nothing -> empty; - {just, M} -> post_pop(AckRequired, M, S) + {just, MsgStatus} -> post_pop(AckRequired, MsgStatus, State) end. --spec tx_commit_state([pub()], - [seq_id()], - message_properties_transformer(), - s()) -> - s(). +-spec internal_tx_commit([pub()], + [seq_id()], + message_properties_transformer(), + state()) -> + state(). -tx_commit_state(Pubs, SeqIds, PropsF, S) -> - S1 = internal_ack(SeqIds, S), +internal_tx_commit(Pubs, SeqIds, PropsF, State) -> + S1 = internal_ack(SeqIds, State), lists:foldl( - fun ({Msg, Props}, Si) -> - publish_state(Msg, Props, false, Si) + fun ({Msg, Props}, StateI) -> + internal_publish(Msg, Props, false, StateI) end, S1, [{Msg, PropsF(Props)} || {Msg, Props} <- lists:reverse(Pubs)]). --spec publish_state(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - s()) -> - s(). +-spec internal_publish(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). -publish_state(Msg, - Props, - IsDelivered, - S = #s { q_table = QTable, - next_seq_id = SeqId, - next_out_id = OutId }) -> - M = (m(Msg, SeqId, Props)) #m { is_delivered = IsDelivered }, - mnesia:write(QTable, #q_record { out_id = OutId, m = M }, 'write'), - S #s { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. +internal_publish(Msg, + Props, + IsDelivered, + State = #state { q_table = QTable, + next_seq_id = SeqId, + next_out_id = OutId }) -> + MsgStatus = m(SeqId, Msg, Props, IsDelivered), + mnesia:write( + QTable, #q_record { out_id = OutId, msg_status = MsgStatus }, 'write'), + State #state { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. --spec(internal_ack/2 :: ([seq_id()], s()) -> s()). +-spec(internal_ack/2 :: ([seq_id()], state()) -> state()). -internal_ack(SeqIds, S) -> del_ps(fun (_, Si) -> Si end, SeqIds, S). +internal_ack(SeqIds, State) -> + del_ps(fun (_, StateI) -> StateI end, SeqIds, State). -spec(internal_dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), s()) - -> {empty | ok, s()}). + (fun ((rabbit_types:message_properties()) -> boolean()), state()) + -> state()). -internal_dropwhile(Pred, S) -> - case q_peek(S) of - nothing -> {empty, S}; - {just, M = #m { props = Props }} -> +internal_dropwhile(Pred, State) -> + case q_peek(State) of + nothing -> State; + {just, MsgStatus = #msg_status { props = Props }} -> case Pred(Props) of - true -> _ = q_pop(S), - _ = post_pop(false, M, S), - internal_dropwhile(Pred, S); - false -> {ok, S} + true -> _ = q_pop(State), + _ = post_pop(false, MsgStatus, State), + internal_dropwhile(Pred, State); + false -> State end end. %% q_pop pops a msg, if any, from the Q table in Mnesia. --spec q_pop(s()) -> maybe(m()). +-spec q_pop(state()) -> maybe(msg_status()). -q_pop(#s { q_table = QTable }) -> +q_pop(#state { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; - OutId -> [#q_record { out_id = OutId, m = M }] = + OutId -> [#q_record { out_id = OutId, msg_status = MsgStatus }] = mnesia:read(QTable, OutId, 'read'), mnesia:delete(QTable, OutId, 'write'), - {just, M} + {just, MsgStatus} end. %% q_peek returns the first msg, if any, from the Q table in %% Mnesia. --spec q_peek(s()) -> maybe(m()). +-spec q_peek(state()) -> maybe(msg_status()). -q_peek(#s { q_table = QTable }) -> +q_peek(#state { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; - OutId -> [#q_record { out_id = OutId, m = M }] = + OutId -> [#q_record { out_id = OutId, msg_status = MsgStatus }] = mnesia:read(QTable, OutId, 'read'), - {just, M} + {just, MsgStatus} end. %% post_pop operates after q_pop, calling add_p if necessary. --spec(post_pop(true, m(), s()) -> fetch_result(ack()); - (false, m(), s()) -> fetch_result(undefined)). +-spec(post_pop(true, msg_status(), state()) -> fetch_result(ack()); + (false, msg_status(), state()) -> fetch_result(undefined)). post_pop(true, - M = #m { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, - S = #s { q_table = QTable }) -> + MsgStatus = #msg_status { + seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + State = #state { q_table = QTable }) -> LQ = length(mnesia:all_keys(QTable)), - add_p(M #m { is_delivered = true }, S), + add_p(MsgStatus #msg_status { is_delivered = true }, State), {Msg, IsDelivered, SeqId, LQ}; post_pop(false, - #m { msg = Msg, is_delivered = IsDelivered }, - #s { q_table = QTable }) -> + #msg_status { msg = Msg, is_delivered = IsDelivered }, + #state { q_table = QTable }) -> LQ = length(mnesia:all_keys(QTable)), {Msg, IsDelivered, undefined, LQ}. %% add_p adds a pending ack to the P table in Mnesia. --spec add_p(m(), s()) -> ok. +-spec add_p(msg_status(), state()) -> ok. -add_p(M = #m { seq_id = SeqId }, #s { p_table = PTable }) -> - mnesia:write(PTable, #p_record { seq_id = SeqId, m = M }, 'write'), +add_p(MsgStatus = #msg_status { seq_id = SeqId }, + #state { p_table = PTable }) -> + mnesia:write(PTable, + #p_record { seq_id = SeqId, msg_status = MsgStatus }, + 'write'), ok. %% del_ps deletes some number of pending acks from the P table in %% Mnesia, applying a (Mnesia transactional) function F after each msg %% is deleted. --spec del_ps(fun ((m(), s()) -> s()), [seq_id()], s()) -> s(). +-spec del_ps(fun ((msg_status(), state()) -> state()), + [seq_id()], + state()) -> + state(). -del_ps(F, SeqIds, S = #s { p_table = PTable }) -> +del_ps(F, SeqIds, State = #state { p_table = PTable }) -> lists:foldl( - fun (SeqId, Si) -> - [#p_record { m = M }] = mnesia:read(PTable, SeqId, 'read'), + fun (SeqId, StateI) -> + [#p_record { msg_status = MsgStatus }] = + mnesia:read(PTable, SeqId, 'read'), mnesia:delete(PTable, SeqId, 'write'), - F(M, Si) + F(MsgStatus, StateI) end, - S, + State, SeqIds). %% save copies the volatile part of the state (next_seq_id and %% next_out_id) to Mnesia. --spec save(s()) -> ok. +-spec save(state()) -> ok. -save(#s { n_table = NTable, - next_seq_id = NextSeqId, - next_out_id = NextOutId }) -> +save(#state { n_table = NTable, + next_seq_id = NextSeqId, + next_out_id = NextOutId }) -> ok = mnesia:write(NTable, #n_record { key = 'n', next_seq_id = NextSeqId, next_out_id = NextOutId }, 'write'). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% Pure helper functions. %% ---------------------------------------------------------------------------- @@ -895,35 +889,35 @@ tables({resource, VHost, queue, Name}) -> list_to_atom("p" ++ Str), list_to_atom("n" ++ Str)}. --spec m(rabbit_types:basic_message(), - seq_id(), - rabbit_types:message_properties()) -> - m(). +-spec m(seq_id(), + rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean()) -> + msg_status(). -m(Msg, SeqId, Props) -> - #m { seq_id = SeqId, msg = Msg, props = Props, is_delivered = false }. +m(SeqId, Msg, Props, IsDelivered) -> + #msg_status { + seq_id = SeqId, msg = Msg, props = Props, is_delivered = IsDelivered }. --spec lookup_tx(rabbit_types:txn(), s()) -> tx(). +-spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). -lookup_tx(Txn, #s { txn_dict = TxnDict }) -> +lookup_tx(Txn, TxnDict) -> case dict:find(Txn, TxnDict) of error -> #tx { to_pub = [], to_ack = [] }; {ok, Tx} -> Tx end. --spec store_tx(rabbit_types:txn(), tx(), s()) -> s(). +-spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). -store_tx(Txn, Tx, S = #s { txn_dict = TxnDict }) -> - S #s { txn_dict = dict:store(Txn, Tx, TxnDict) }. +store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). --spec erase_tx(rabbit_types:txn(), s()) -> s(). +-spec erase_tx(rabbit_types:txn(), dict()) -> dict(). -erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> - S #s { txn_dict = dict:erase(Txn, TxnDict) }. +erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% Internal plumbing for confirms (aka publisher acks) -%%---------------------------------------------------------------------------- +%% ---------------------------------------------------------------------------- %% callback/1 calls back into the broker to confirm msgs, and expire %% msgs, and quite possibly to perform yet other side-effects. It's @@ -932,16 +926,13 @@ erase_tx(Txn, S = #s { txn_dict = TxnDict }) -> -spec callback([pub()]) -> ok. callback(Pubs) -> - rabbit_log:info("callback(~n ~p)", [Pubs]), Guids = - lists:append( - lists:map(fun ({#basic_message { guid = Guid }, - #message_properties { needs_confirming = true }}) - -> [Guid]; - (_) -> [] - end, - Pubs)), - rabbit_log:info("Guids = ~p)", [Guids]), - rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( - self(), fun (S) -> {Guids, S} end), - ok. + [Guid || {#basic_message { guid = Guid }, + #message_properties { needs_confirming = true }} <- Pubs], + case Guids of + [] -> ok; + _ -> + rabbit_amqqueue:maybe_run_queue_via_backing_queue_async( + self(), fun (State) -> {Guids, State} end), + ok + end. diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index bbd880ca..122e02be 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -119,7 +119,7 @@ %% Public API %% %% Specs are in rabbit_backing_queue_spec.hrl but are repeated here -%% for readability. +%% for clarity. %% ---------------------------------------------------------------------------- %% start/1 predicts that a list of (durable) queues will be started in -- cgit v1.2.1 From 3ff33d367eb75ef7a717b50a18e69e3b80c2dccc Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Tue, 15 Mar 2011 18:50:09 -0700 Subject: Continuing with renames and restructuring for rabbit_mnesia_queue. --- src/rabbit_mnesia_queue.erl | 257 +++++++++++++------------------------------- 1 file changed, 75 insertions(+), 182 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 6021147c..a159485d 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -58,16 +58,13 @@ -behaviour(rabbit_backing_queue). %% The state record is the in-RAM AMQP queue state. It contains the -%% names of three Mnesia queues; the next_seq_id and next_out_id (also -%% stored in the N table in Mnesia); and the AMQP transaction dict -%% (which can be dropped on a crash). +%% names of two Mnesia queues; the next_seq_id; and the AMQP +%% transaction dict (which can be dropped on a crash). -record(state, % The in-RAM queue state { q_table, % The Mnesia queue table name p_table, % The Mnesia pending-ack table name - n_table, % The Mnesia next_(seq_id, out_id) table name next_seq_id, % The next M's seq_id - next_out_id, % The next M's out id txn_dict % In-progress txn->tx map }). @@ -97,13 +94,11 @@ %% A Q record is a msg stored in the Q table in Mnesia. It is indexed %% by the out-id, which orders msgs; and contains the msg_status -%% record itself. We push msg_status records with a new high out_id, -%% and pop the msg_status record with the lowest out_id. (We cannot -%% use the seq_id for ordering since msgs may be requeued while -%% keeping the same seq_id.) +%% record itself. We push msg_status records with a new high seq_id, +%% and pop the msg_status record with the lowest seq_id. -record(q_record, % Q records in Mnesia - { out_id, % The key: The out_id + { seq_id, % The key: The seq_id msg_status % The value: The msg_status record }). @@ -116,18 +111,6 @@ msg_status % The value: The msg_status record }). -%% An N record holds counters in the single row in the N table in -%% Mnesia. It contains the next_seq_id and next_out_id from the state -%% record, so that they can be recovered after a crash. They are -%% updated on every Mnesia transaction that updates them in the in-RAM -%% State. - --record(n_record, % next_seq_id & next_out_id record in Mnesia - { key, % The key: the atom 'n' - next_seq_id, % The Mnesia next_seq_id - next_out_id % The Mnesia next_out_id - }). - -include("rabbit.hrl"). %% ---------------------------------------------------------------------------- @@ -143,9 +126,7 @@ -type(state() :: #state { q_table :: atom(), p_table :: atom(), - n_table :: atom(), next_seq_id :: seq_id(), - next_out_id :: non_neg_integer(), txn_dict :: dict() }). -type(msg_status() :: #msg_status { msg :: rabbit_types:basic_message(), @@ -159,16 +140,12 @@ -type(pub() :: { rabbit_types:basic_message(), rabbit_types:message_properties() }). --type(q_record() :: #q_record { out_id :: non_neg_integer(), +-type(q_record() :: #q_record { seq_id :: non_neg_integer(), msg_status :: msg_status() }). -type(p_record() :: #p_record { seq_id :: seq_id(), msg_status :: msg_status() }). --type(n_record() :: #n_record { key :: 'n', - next_seq_id :: seq_id(), - next_out_id :: non_neg_integer() }). - -include("rabbit_backing_queue_spec.hrl"). %% -endif. @@ -216,41 +193,31 @@ stop() -> ok. %% Mnesia transaction! init(QueueName, IsDurable, Recover) -> - {QTable, PTable, NTable} = tables(QueueName), + {QTable, PTable} = tables(QueueName), case Recover of false -> _ = mnesia:delete_table(QTable), - _ = mnesia:delete_table(PTable), - _ = mnesia:delete_table(NTable); + _ = mnesia:delete_table(PTable); true -> ok end, create_table(QTable, 'q_record', 'ordered_set', record_info(fields, q_record)), create_table(PTable, 'p_record', 'set', record_info(fields, p_record)), - create_table(NTable, 'n_record', 'set', record_info(fields, n_record)), {atomic, Result} = mnesia:transaction( fun () -> case IsDurable of false -> clear_table(QTable), - clear_table(PTable), - clear_table(NTable); + clear_table(PTable); true -> delete_nonpersistent_msgs(QTable) end, - {NextSeqId, NextOutId} = - case mnesia:read(NTable, 'n', 'read') of - [] -> {0, 0}; - [#n_record { next_seq_id = NextSeqId0, - next_out_id = NextOutId0 }] -> - {NextSeqId0, NextOutId0} - end, - RState = #state { q_table = QTable, - p_table = PTable, - n_table = NTable, - next_seq_id = NextSeqId, - next_out_id = NextOutId, - txn_dict = dict:new() }, - save(RState), - RState + NextSeqId = case mnesia:first(QTable) of + '$end_of_table' -> 0; + SeqId -> SeqId + end, + #state { q_table = QTable, + p_table = PTable, + next_seq_id = NextSeqId, + txn_dict = dict:new() } end), Result. @@ -263,12 +230,10 @@ init(QueueName, IsDurable, Recover) -> %% %% -spec(terminate/1 :: (state()) -> state()). -terminate(State = #state { - q_table = QTable, p_table = PTable, n_table = NTable }) -> - {atomic, Result} = - mnesia:transaction(fun () -> clear_table(PTable), State end), - mnesia:dump_tables([QTable, PTable, NTable]), - Result. +terminate(State = #state { q_table = QTable, p_table = PTable }) -> + {atomic, _} = mnesia:clear_table(PTable), + mnesia:dump_tables([QTable, PTable]), + State. %% ---------------------------------------------------------------------------- %% delete_and_terminate/1 deletes all of a queue's enqueued msgs and @@ -280,16 +245,13 @@ terminate(State = #state { %% %% -spec(delete_and_terminate/1 :: (state()) -> state()). -delete_and_terminate(State = #state { q_table = QTable, - p_table = PTable, - n_table = NTable }) -> - {atomic, Result} = +delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> + {atomic, _} = mnesia:transaction(fun () -> clear_table(QTable), - clear_table(PTable), - State + clear_table(PTable) end), - mnesia:dump_tables([QTable, PTable, NTable]), - Result. + mnesia:dump_tables([QTable, PTable]), + State. %% ---------------------------------------------------------------------------- %% purge/1 deletes all of queue's enqueued msgs, returning the count @@ -323,10 +285,7 @@ purge(State = #state { q_table = QTable }) -> publish(Msg, Props, State) -> {atomic, Result} = mnesia:transaction( - fun () -> RState = internal_publish(Msg, Props, false, State), - save(RState), - RState - end), + fun () -> internal_publish(Msg, Props, false, State) end), callback([{Msg, Props}]), Result. @@ -346,22 +305,19 @@ publish(Msg, Props, State) -> %% -> {undefined, state()}). publish_delivered(false, Msg, Props, State) -> - Result = {undefined, State}, callback([{Msg, Props}]), - Result; -publish_delivered(true, - Msg, - Props, - State = - #state { next_seq_id = SeqId, next_out_id = OutId }) -> + {undefined, State}; +publish_delivered(true, Msg, Props, State = #state { next_seq_id = SeqId }) -> {atomic, Result} = mnesia:transaction( fun () -> - add_p(m(SeqId, Msg, Props, true), State), - RState = State #state { next_seq_id = SeqId + 1, - next_out_id = OutId + 1 }, - save(RState), - {SeqId, RState} + add_p(#msg_status { + seq_id = SeqId, + msg = Msg, + props = Props, + is_delivered = true }, + State), + {SeqId, State #state { next_seq_id = SeqId + 1 }} end), callback([{Msg, Props}]), Result. @@ -385,10 +341,7 @@ publish_delivered(true, dropwhile(Pred, State) -> {atomic, Result} = - mnesia:transaction(fun () -> RState = internal_dropwhile(Pred, State), - save(RState), - RState - end), + mnesia:transaction(fun () -> internal_dropwhile(Pred, State) end), Result. %% ---------------------------------------------------------------------------- @@ -425,10 +378,7 @@ fetch(AckRequired, State) -> ack(SeqIds, State) -> {atomic, Result} = - mnesia:transaction(fun () -> RState = internal_ack(SeqIds, State), - save(RState), - RState - end), + mnesia:transaction(fun () -> internal_ack(SeqIds, State) end), Result. %% ---------------------------------------------------------------------------- @@ -447,20 +397,10 @@ ack(SeqIds, State) -> %% -> state()). tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict }) -> - {atomic, Result} = - mnesia:transaction( - fun () -> - Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), - RState = - State #state { - txn_dict = store_tx( - Txn, - Tx #tx { to_pub = [{Msg, Props} | Pubs] }, - TxnDict) }, - save(RState), - RState - end), - Result. + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), + State #state { + txn_dict = + store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, TxnDict) }. %% ---------------------------------------------------------------------------- %% tx_ack/3 acks within an AMQP transaction. It stores the seq_id in @@ -472,20 +412,10 @@ tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict }) -> %% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> - {atomic, Result} = - mnesia:transaction( - fun () -> - Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), - RState = - State #state { - txn_dict = store_tx( - Txn, - Tx #tx { to_ack = SeqIds ++ SeqIds0 }, - TxnDict) }, - save(RState), - RState - end), - Result. + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), + State #state { + txn_dict = + store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, TxnDict) }. %% ---------------------------------------------------------------------------- %% tx_rollback/2 aborts an AMQP transaction. @@ -496,15 +426,8 @@ tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> %% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> - {atomic, Result} = - mnesia:transaction( - fun () -> - #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), - RState = State #state { txn_dict = erase_tx(Txn, TxnDict) }, - save(RState), - {SeqIds, RState} - end), - Result. + #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), + {SeqIds, State #state { txn_dict = erase_tx(Txn, TxnDict) }}. %% ---------------------------------------------------------------------------- %% tx_commit/4 commits an AMQP transaction. The F passed in is called @@ -529,12 +452,11 @@ tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), RState = - internal_tx_commit( + internal_commit( Pubs, SeqIds, PropsF, State #state { txn_dict = erase_tx(Txn, TxnDict) }), - save(RState), {{SeqIds, RState}, Pubs} end), F(), @@ -554,17 +476,13 @@ tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> requeue(SeqIds, PropsF, State) -> {atomic, Result} = mnesia:transaction( - fun () -> RState = - del_ps( - fun (#msg_status { msg = Msg, props = Props }, - StateI) -> - internal_publish( - Msg, PropsF(Props), true, StateI) - end, - SeqIds, - State), - save(RState), - RState + fun () -> del_ps( + fun (#msg_status { msg = Msg, props = Props }, StateI) -> + internal_publish( + Msg, PropsF(Props), true, StateI) + end, + SeqIds, + State) end), Result. @@ -701,7 +619,7 @@ clear_table(Table) -> delete_nonpersistent_msgs(QTable) -> lists:foreach( fun (Key) -> - [#q_record { out_id = Key, msg_status = MsgStatus }] = + [#q_record { seq_id = Key, msg_status = MsgStatus }] = mnesia:read(QTable, Key, 'read'), case MsgStatus of #msg_status { msg = #basic_message { @@ -723,13 +641,13 @@ internal_fetch(AckRequired, State) -> {just, MsgStatus} -> post_pop(AckRequired, MsgStatus, State) end. --spec internal_tx_commit([pub()], +-spec internal_commit([pub()], [seq_id()], message_properties_transformer(), state()) -> state(). -internal_tx_commit(Pubs, SeqIds, PropsF, State) -> +internal_commit(Pubs, SeqIds, PropsF, State) -> S1 = internal_ack(SeqIds, State), lists:foldl( fun ({Msg, Props}, StateI) -> @@ -747,13 +665,15 @@ internal_tx_commit(Pubs, SeqIds, PropsF, State) -> internal_publish(Msg, Props, IsDelivered, - State = #state { q_table = QTable, - next_seq_id = SeqId, - next_out_id = OutId }) -> - MsgStatus = m(SeqId, Msg, Props, IsDelivered), + State = #state { q_table = QTable, next_seq_id = SeqId }) -> + MsgStatus = #msg_status { + seq_id = SeqId, + msg = Msg, + props = Props, + is_delivered = IsDelivered }, mnesia:write( - QTable, #q_record { out_id = OutId, msg_status = MsgStatus }, 'write'), - State #state { next_seq_id = SeqId + 1, next_out_id = OutId + 1 }. + QTable, #q_record { seq_id = SeqId, msg_status = MsgStatus }, 'write'), + State #state { next_seq_id = SeqId + 1 }. -spec(internal_ack/2 :: ([seq_id()], state()) -> state()). @@ -783,9 +703,9 @@ internal_dropwhile(Pred, State) -> q_pop(#state { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; - OutId -> [#q_record { out_id = OutId, msg_status = MsgStatus }] = - mnesia:read(QTable, OutId, 'read'), - mnesia:delete(QTable, OutId, 'write'), + SeqId -> [#q_record { seq_id = SeqId, msg_status = MsgStatus }] = + mnesia:read(QTable, SeqId, 'read'), + mnesia:delete(QTable, SeqId, 'write'), {just, MsgStatus} end. @@ -797,8 +717,8 @@ q_pop(#state { q_table = QTable }) -> q_peek(#state { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; - OutId -> [#q_record { out_id = OutId, msg_status = MsgStatus }] = - mnesia:read(QTable, OutId, 'read'), + SeqId -> [#q_record { seq_id = SeqId, msg_status = MsgStatus }] = + mnesia:read(QTable, SeqId, 'read'), {just, MsgStatus} end. @@ -851,25 +771,11 @@ del_ps(F, SeqIds, State = #state { p_table = PTable }) -> State, SeqIds). -%% save copies the volatile part of the state (next_seq_id and -%% next_out_id) to Mnesia. - --spec save(state()) -> ok. - -save(#state { n_table = NTable, - next_seq_id = NextSeqId, - next_out_id = NextOutId }) -> - ok = mnesia:write(NTable, - #n_record { key = 'n', - next_seq_id = NextSeqId, - next_out_id = NextOutId }, - 'write'). - %% ---------------------------------------------------------------------------- %% Pure helper functions. %% ---------------------------------------------------------------------------- -%% Convert a queue name (a record) into an Mnesia table name (an atom). +%% Convert a queue name (a record) into its Mnesia table names (atoms). %% TODO: Import correct argument type. @@ -878,26 +784,13 @@ save(#state { n_table = NTable, %% should extend this as necessary, and perhaps make it a little %% prettier. --spec tables({resource, binary(), queue, binary()}) -> - {atom(), atom(), atom()}. +-spec tables({resource, binary(), queue, binary()}) -> {atom(), atom()}. tables({resource, VHost, queue, Name}) -> VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), Str = lists:flatten(io_lib:format("~999999999p", [{VHost2, Name2}])), - {list_to_atom("q" ++ Str), - list_to_atom("p" ++ Str), - list_to_atom("n" ++ Str)}. - --spec m(seq_id(), - rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean()) -> - msg_status(). - -m(SeqId, Msg, Props, IsDelivered) -> - #msg_status { - seq_id = SeqId, msg = Msg, props = Props, is_delivered = IsDelivered }. + {list_to_atom("q" ++ Str), list_to_atom("p" ++ Str)}. -spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). -- cgit v1.2.1 From 91b821ad0762cb4db59e4bf15ba09e0d3ebc481c Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 16 Mar 2011 14:31:01 +0000 Subject: Pre-junk --- INSTALL.in | 10 - LICENSE | 5 - LICENSE-MPL-RabbitMQ | 455 ---- Makefile | 315 --- README.in | 10 - calculate-relative | 45 - codegen.py | 493 ---- docs/examples-to-end.xsl | 94 - docs/html-to-website-xml.xsl | 98 - docs/rabbitmq-env.conf.5.xml | 83 - docs/rabbitmq-server.1.xml | 131 -- docs/rabbitmq-service.xml | 217 -- docs/rabbitmqctl.1.xml | 1269 ---------- docs/remove-namespaces.xsl | 18 - docs/usage.xsl | 78 - ebin/rabbit_app.in | 45 - generate_app | 12 - generate_deps | 57 - include/gm_specs.hrl | 28 - include/rabbit.hrl | 101 - include/rabbit_auth_backend_spec.hrl | 32 - include/rabbit_auth_mechanism_spec.hrl | 28 - include/rabbit_backing_queue_spec.hrl | 70 - include/rabbit_exchange_type_spec.hrl | 36 - include/rabbit_msg_store.hrl | 25 - include/rabbit_msg_store_index.hrl | 45 - packaging/RPMS/Fedora/Makefile | 49 - packaging/RPMS/Fedora/rabbitmq-server.logrotate | 12 - packaging/RPMS/Fedora/rabbitmq-server.spec | 196 -- packaging/common/rabbitmq-script-wrapper | 42 - packaging/common/rabbitmq-server.init | 153 -- packaging/common/rabbitmq-server.ocf | 341 --- packaging/debs/Debian/Makefile | 45 - packaging/debs/Debian/check-changelog.sh | 29 - packaging/debs/Debian/debian/changelog | 156 -- packaging/debs/Debian/debian/compat | 1 - packaging/debs/Debian/debian/control | 18 - packaging/debs/Debian/debian/copyright | 502 ---- packaging/debs/Debian/debian/dirs | 9 - packaging/debs/Debian/debian/postinst | 60 - packaging/debs/Debian/debian/postrm.in | 73 - .../debs/Debian/debian/rabbitmq-server.logrotate | 12 - packaging/debs/Debian/debian/rules | 21 - packaging/debs/Debian/debian/watch | 4 - packaging/debs/apt-repository/Makefile | 28 - packaging/debs/apt-repository/README | 17 - 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src/rabbit_control.erl | 420 ---- src/rabbit_direct.erl | 79 - src/rabbit_error_logger.erl | 74 - src/rabbit_error_logger_file_h.erl | 68 - src/rabbit_event.erl | 137 -- src/rabbit_exchange.erl | 310 --- src/rabbit_exchange_type.erl | 50 - src/rabbit_exchange_type_direct.erl | 49 - src/rabbit_exchange_type_fanout.erl | 48 - src/rabbit_exchange_type_headers.erl | 122 - src/rabbit_exchange_type_topic.erl | 282 --- src/rabbit_framing.erl | 49 - src/rabbit_guid.erl | 119 - src/rabbit_heartbeat.erl | 149 -- src/rabbit_limiter.erl | 234 -- src/rabbit_log.erl | 132 -- src/rabbit_memory_monitor.erl | 280 --- src/rabbit_misc.erl | 874 ------- src/rabbit_mnesia.erl | 609 ----- src/rabbit_msg_file.erl | 125 - src/rabbit_msg_store.erl | 2014 ---------------- src/rabbit_msg_store_ets_index.erl | 79 - src/rabbit_msg_store_gc.erl | 137 -- src/rabbit_msg_store_index.erl | 32 - src/rabbit_net.erl | 119 - src/rabbit_networking.erl | 394 ---- src/rabbit_node_monitor.erl | 102 - src/rabbit_prelaunch.erl | 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delete mode 100644 src/rabbit_event.erl delete mode 100644 src/rabbit_exchange.erl delete mode 100644 src/rabbit_exchange_type.erl delete mode 100644 src/rabbit_exchange_type_direct.erl delete mode 100644 src/rabbit_exchange_type_fanout.erl delete mode 100644 src/rabbit_exchange_type_headers.erl delete mode 100644 src/rabbit_exchange_type_topic.erl delete mode 100644 src/rabbit_framing.erl delete mode 100644 src/rabbit_guid.erl delete mode 100644 src/rabbit_heartbeat.erl delete mode 100644 src/rabbit_limiter.erl delete mode 100644 src/rabbit_log.erl delete mode 100644 src/rabbit_memory_monitor.erl delete mode 100644 src/rabbit_misc.erl delete mode 100644 src/rabbit_mnesia.erl delete mode 100644 src/rabbit_msg_file.erl delete mode 100644 src/rabbit_msg_store.erl delete mode 100644 src/rabbit_msg_store_ets_index.erl delete mode 100644 src/rabbit_msg_store_gc.erl delete mode 100644 src/rabbit_msg_store_index.erl delete mode 100644 src/rabbit_net.erl delete mode 100644 src/rabbit_networking.erl delete mode 100644 src/rabbit_node_monitor.erl delete mode 100644 src/rabbit_prelaunch.erl delete mode 100644 src/rabbit_queue_collector.erl delete mode 100644 src/rabbit_queue_index.erl delete mode 100644 src/rabbit_reader.erl delete mode 100644 src/rabbit_registry.erl delete mode 100644 src/rabbit_restartable_sup.erl delete mode 100644 src/rabbit_router.erl delete mode 100644 src/rabbit_sasl_report_file_h.erl delete mode 100644 src/rabbit_ssl.erl delete mode 100644 src/rabbit_sup.erl delete mode 100644 src/rabbit_tests.erl delete mode 100644 src/rabbit_tests_event_receiver.erl delete mode 100644 src/rabbit_types.erl delete mode 100644 src/rabbit_upgrade.erl delete mode 100644 src/rabbit_upgrade_functions.erl delete mode 100644 src/rabbit_variable_queue.erl delete mode 100644 src/rabbit_vhost.erl delete mode 100644 src/rabbit_writer.erl delete mode 100644 src/supervisor2.erl delete mode 100644 src/tcp_acceptor.erl delete mode 100644 src/tcp_acceptor_sup.erl delete mode 100644 src/tcp_listener.erl delete mode 100644 src/tcp_listener_sup.erl delete mode 100644 src/test_sup.erl delete mode 100644 src/vm_memory_monitor.erl delete mode 100644 src/worker_pool.erl delete mode 100644 src/worker_pool_sup.erl delete mode 100644 src/worker_pool_worker.erl diff --git a/INSTALL.in b/INSTALL.in deleted file mode 100644 index d1fa81df..00000000 --- a/INSTALL.in +++ /dev/null @@ -1,10 +0,0 @@ -Please see http://www.rabbitmq.com/install.html for install -instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/LICENSE b/LICENSE deleted file mode 100644 index 89640485..00000000 --- a/LICENSE +++ /dev/null @@ -1,5 +0,0 @@ -This package, the RabbitMQ server is licensed under the MPL. For the -MPL, please see LICENSE-MPL-RabbitMQ. - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. diff --git a/LICENSE-MPL-RabbitMQ b/LICENSE-MPL-RabbitMQ deleted file mode 100644 index 14bcc21d..00000000 --- a/LICENSE-MPL-RabbitMQ +++ /dev/null @@ -1,455 +0,0 @@ - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] diff --git a/Makefile b/Makefile deleted file mode 100644 index cdb86aad..00000000 --- a/Makefile +++ /dev/null @@ -1,315 +0,0 @@ -TMPDIR ?= /tmp - -RABBITMQ_NODENAME ?= rabbit -RABBITMQ_SERVER_START_ARGS ?= -RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia -RABBITMQ_PLUGINS_EXPAND_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-plugins-scratch -RABBITMQ_LOG_BASE ?= $(TMPDIR) - -DEPS_FILE=deps.mk -SOURCE_DIR=src -EBIN_DIR=ebin -INCLUDE_DIR=include -DOCS_DIR=docs -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl -SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) -BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) -TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) -WEB_URL=http://www.rabbitmq.com/ -MANPAGES=$(patsubst %.xml, %.gz, $(wildcard $(DOCS_DIR)/*.[0-9].xml)) -WEB_MANPAGES=$(patsubst %.xml, %.man.xml, $(wildcard $(DOCS_DIR)/*.[0-9].xml) $(DOCS_DIR)/rabbitmq-service.xml) -USAGES_XML=$(DOCS_DIR)/rabbitmqctl.1.xml -USAGES_ERL=$(foreach XML, $(USAGES_XML), $(call usage_xml_to_erl, $(XML))) - -ifeq ($(shell python -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python -else -ifeq ($(shell python2.6 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.6 -else -ifeq ($(shell python2.5 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.5 -else -# Hmm. Missing simplejson? -PYTHON=python -endif -endif -endif - -BASIC_PLT=basic.plt -RABBIT_PLT=rabbit.plt - -ifndef USE_SPECS -# our type specs rely on features and bug fixes in dialyzer that are -# only available in R14A upwards (R14A is erts 5.8) -USE_SPECS:=$(shell erl -noshell -eval 'io:format([list_to_integer(X) || X <- string:tokens(erlang:system_info(version), ".")] >= [5,8]), halt().') -endif - -#other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(if $(filter true,$(USE_SPECS)),-Duse_specs) - -VERSION=0.0.0 -TARBALL_NAME=rabbitmq-server-$(VERSION) -TARGET_SRC_DIR=dist/$(TARBALL_NAME) - -SIBLING_CODEGEN_DIR=../rabbitmq-codegen/ -AMQP_CODEGEN_DIR=$(shell [ -d $(SIBLING_CODEGEN_DIR) ] && echo $(SIBLING_CODEGEN_DIR) || echo codegen) -AMQP_SPEC_JSON_FILES_0_9_1=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.9.1.json -AMQP_SPEC_JSON_FILES_0_8=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.8.json - -ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e - -ERL_EBIN=erl -noinput -pa $(EBIN_DIR) - -define usage_xml_to_erl - $(subst __,_,$(patsubst $(DOCS_DIR)/rabbitmq%.1.xml, $(SOURCE_DIR)/rabbit_%_usage.erl, $(subst -,_,$(1)))) -endef - -define usage_dep - $(call usage_xml_to_erl, $(1)): $(1) $(DOCS_DIR)/usage.xsl -endef - -ifneq "$(SBIN_DIR)" "" -ifneq "$(TARGET_DIR)" "" -SCRIPTS_REL_PATH=$(shell ./calculate-relative $(TARGET_DIR)/sbin $(SBIN_DIR)) -endif -endif - -# Versions prior to this are not supported -NEED_MAKE := 3.80 -ifneq "$(NEED_MAKE)" "$(firstword $(sort $(NEED_MAKE) $(MAKE_VERSION)))" -$(error Versions of make prior to $(NEED_MAKE) are not supported) -endif - -# .DEFAULT_GOAL introduced in 3.81 -DEFAULT_GOAL_MAKE := 3.81 -ifneq "$(DEFAULT_GOAL_MAKE)" "$(firstword $(sort $(DEFAULT_GOAL_MAKE) $(MAKE_VERSION)))" -.DEFAULT_GOAL=all -endif - -all: $(TARGETS) - -$(DEPS_FILE): $(SOURCES) $(INCLUDES) - rm -f $@ - echo $(subst : ,:,$(foreach FILE,$^,$(FILE):)) | escript generate_deps $@ $(EBIN_DIR) - -$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app - escript generate_app $(EBIN_DIR) $@ < $< - -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl | $(DEPS_FILE) - erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< - -$(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py --ignore-conflicts header $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_9_1) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_8) $@ - -dialyze: $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --no_native \ - -Wrace_conditions $(BEAM_TARGETS) - -# rabbit.plt is used by rabbitmq-erlang-client's dialyze make target -create-plt: $(RABBIT_PLT) - -$(RABBIT_PLT): $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --output_plt $@ --no_native \ - --add_to_plt $(BEAM_TARGETS) - -$(BASIC_PLT): $(BEAM_TARGETS) - if [ -f $@ ]; then \ - touch $@; \ - else \ - dialyzer --output_plt $@ --build_plt \ - --apps erts kernel stdlib compiler sasl os_mon mnesia tools \ - public_key crypto ssl; \ - fi - -clean: - rm -f $(EBIN_DIR)/*.beam - rm -f $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script $(EBIN_DIR)/rabbit.rel - rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCE_DIR)/rabbit_framing_amqp_*.erl codegen.pyc - rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) - rm -f $(RABBIT_PLT) - rm -f $(DEPS_FILE) - -cleandb: - rm -rf $(RABBITMQ_MNESIA_DIR)/* - -############ various tasks to interact with RabbitMQ ################### - -BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\ - RABBITMQ_NODE_IP_ADDRESS="$(RABBITMQ_NODE_IP_ADDRESS)" \ - RABBITMQ_NODE_PORT="$(RABBITMQ_NODE_PORT)" \ - RABBITMQ_LOG_BASE="$(RABBITMQ_LOG_BASE)" \ - RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" \ - RABBITMQ_PLUGINS_EXPAND_DIR="$(RABBITMQ_PLUGINS_EXPAND_DIR)" - -run: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-node: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-tests: all - echo "rabbit_tests:all_tests()." | $(ERL_CALL) - -start-background-node: - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server; sleep 1 - -start-rabbit-on-node: all - echo "rabbit:start()." | $(ERL_CALL) - -stop-rabbit-on-node: all - echo "rabbit:stop()." | $(ERL_CALL) - -set-memory-alarm: all - echo "alarm_handler:set_alarm({{vm_memory_high_watermark, node()}, []})." | \ - $(ERL_CALL) - -clear-memory-alarm: all - echo "alarm_handler:clear_alarm({vm_memory_high_watermark, node()})." | \ - $(ERL_CALL) - -stop-node: - -$(ERL_CALL) -q - -# code coverage will be created for subdirectory "ebin" of COVER_DIR -COVER_DIR=. - -start-cover: all - echo "rabbit_misc:start_cover([\"rabbit\", \"hare\"])." | $(ERL_CALL) - echo "rabbit_misc:enable_cover([\"$(COVER_DIR)\"])." | $(ERL_CALL) - -start-secondary-cover: all - echo "rabbit_misc:start_cover([\"hare\"])." | $(ERL_CALL) - -stop-cover: all - echo "rabbit_misc:report_cover(), cover:stop()." | $(ERL_CALL) - cat cover/summary.txt - -######################################################################## - -srcdist: distclean - mkdir -p $(TARGET_SRC_DIR)/codegen - cp -r ebin src include LICENSE LICENSE-MPL-RabbitMQ $(TARGET_SRC_DIR) - cp INSTALL.in $(TARGET_SRC_DIR)/INSTALL - elinks -dump -no-references -no-numbering $(WEB_URL)install.html \ - >> $(TARGET_SRC_DIR)/INSTALL - cp README.in $(TARGET_SRC_DIR)/README - elinks -dump -no-references -no-numbering $(WEB_URL)build-server.html \ - >> $(TARGET_SRC_DIR)/README - sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save - - cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ - cp codegen.py Makefile generate_app generate_deps calculate-relative $(TARGET_SRC_DIR) - - cp -r scripts $(TARGET_SRC_DIR) - cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) - chmod 0755 $(TARGET_SRC_DIR)/scripts/* - - (cd dist; tar -zcf $(TARBALL_NAME).tar.gz $(TARBALL_NAME)) - (cd dist; zip -r $(TARBALL_NAME).zip $(TARBALL_NAME)) - rm -rf $(TARGET_SRC_DIR) - -distclean: clean - $(MAKE) -C $(AMQP_CODEGEN_DIR) distclean - rm -rf dist - find . -regex '.*\(~\|#\|\.swp\|\.dump\)' -exec rm {} \; - -# xmlto can not read from standard input, so we mess with a tmp file. -%.gz: %.xml $(DOCS_DIR)/examples-to-end.xsl - xmlto --version | grep -E '^xmlto version 0\.0\.([0-9]|1[1-8])$$' >/dev/null || opt='--stringparam man.indent.verbatims=0' ; \ - xsltproc $(DOCS_DIR)/examples-to-end.xsl $< > $<.tmp && \ - xmlto -o $(DOCS_DIR) $$opt man $<.tmp && \ - gzip -f $(DOCS_DIR)/`basename $< .xml` - rm -f $<.tmp - -# Use tmp files rather than a pipeline so that we get meaningful errors -# Do not fold the cp into previous line, it's there to stop the file being -# generated but empty if we fail -$(SOURCE_DIR)/%_usage.erl: - xsltproc --stringparam modulename "`basename $@ .erl`" \ - $(DOCS_DIR)/usage.xsl $< > $@.tmp - sed -e 's/"/\\"/g' -e 's/%QUOTE%/"/g' $@.tmp > $@.tmp2 - fold -s $@.tmp2 > $@.tmp3 - mv $@.tmp3 $@ - rm $@.tmp $@.tmp2 - -# We rename the file before xmlto sees it since xmlto will use the name of -# the file to make internal links. -%.man.xml: %.xml $(DOCS_DIR)/html-to-website-xml.xsl - cp $< `basename $< .xml`.xml && \ - xmlto xhtml-nochunks `basename $< .xml`.xml ; rm `basename $< .xml`.xml - cat `basename $< .xml`.html | \ - xsltproc --novalid $(DOCS_DIR)/remove-namespaces.xsl - | \ - xsltproc --stringparam original `basename $<` $(DOCS_DIR)/html-to-website-xml.xsl - | \ - xmllint --format - > $@ - rm `basename $< .xml`.html - -docs_all: $(MANPAGES) $(WEB_MANPAGES) - -install: install_bin install_docs - -install_bin: all install_dirs - cp -r ebin include LICENSE LICENSE-MPL-RabbitMQ INSTALL $(TARGET_DIR) - - chmod 0755 scripts/* - for script in rabbitmq-env rabbitmq-server rabbitmqctl; do \ - cp scripts/$$script $(TARGET_DIR)/sbin; \ - [ -e $(SBIN_DIR)/$$script ] || ln -s $(SCRIPTS_REL_PATH)/$$script $(SBIN_DIR)/$$script; \ - done - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory. > $(TARGET_DIR)/plugins/README - -install_docs: docs_all install_dirs - for section in 1 5; do \ - mkdir -p $(MAN_DIR)/man$$section; \ - for manpage in $(DOCS_DIR)/*.$$section.gz; do \ - cp $$manpage $(MAN_DIR)/man$$section; \ - done; \ - done - -install_dirs: - @ OK=true && \ - { [ -n "$(TARGET_DIR)" ] || { echo "Please set TARGET_DIR."; OK=false; }; } && \ - { [ -n "$(SBIN_DIR)" ] || { echo "Please set SBIN_DIR."; OK=false; }; } && \ - { [ -n "$(MAN_DIR)" ] || { echo "Please set MAN_DIR."; OK=false; }; } && $$OK - - mkdir -p $(TARGET_DIR)/sbin - mkdir -p $(SBIN_DIR) - mkdir -p $(MAN_DIR) - -$(foreach XML,$(USAGES_XML),$(eval $(call usage_dep, $(XML)))) - -# Note that all targets which depend on clean must have clean in their -# name. Also any target that doesn't depend on clean should not have -# clean in its name, unless you know that you don't need any of the -# automatic dependency generation for that target (eg cleandb). - -# We want to load the dep file if *any* target *doesn't* contain -# "clean" - i.e. if removing all clean-like targets leaves something - -ifeq "$(MAKECMDGOALS)" "" -TESTABLEGOALS:=$(.DEFAULT_GOAL) -else -TESTABLEGOALS:=$(MAKECMDGOALS) -endif - -ifneq "$(strip $(patsubst clean%,,$(patsubst %clean,,$(TESTABLEGOALS))))" "" --include $(DEPS_FILE) -endif - diff --git a/README.in b/README.in deleted file mode 100644 index 0e70d0e7..00000000 --- a/README.in +++ /dev/null @@ -1,10 +0,0 @@ -Please see http://www.rabbitmq.com/build-server.html for build -instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/calculate-relative b/calculate-relative deleted file mode 100755 index 3af18e8f..00000000 --- a/calculate-relative +++ /dev/null @@ -1,45 +0,0 @@ -#!/usr/bin/env python -# -# relpath.py -# R.Barran 30/08/2004 -# Retrieved from http://code.activestate.com/recipes/302594/ - -import os -import sys - -def relpath(target, base=os.curdir): - """ - Return a relative path to the target from either the current dir or an optional base dir. - Base can be a directory specified either as absolute or relative to current dir. - """ - - if not os.path.exists(target): - raise OSError, 'Target does not exist: '+target - - if not os.path.isdir(base): - raise OSError, 'Base is not a directory or does not exist: '+base - - base_list = (os.path.abspath(base)).split(os.sep) - target_list = (os.path.abspath(target)).split(os.sep) - - # On the windows platform the target may be on a completely different drive from the base. - if os.name in ['nt','dos','os2'] and base_list[0] <> target_list[0]: - raise OSError, 'Target is on a different drive to base. Target: '+target_list[0].upper()+', base: '+base_list[0].upper() - - # Starting from the filepath root, work out how much of the filepath is - # shared by base and target. - for i in range(min(len(base_list), len(target_list))): - if base_list[i] <> target_list[i]: break - else: - # If we broke out of the loop, i is pointing to the first differing path elements. - # If we didn't break out of the loop, i is pointing to identical path elements. - # Increment i so that in all cases it points to the first differing path elements. - i+=1 - - rel_list = [os.pardir] * (len(base_list)-i) + target_list[i:] - if (len(rel_list) == 0): - return "." - return os.path.join(*rel_list) - -if __name__ == "__main__": - print(relpath(sys.argv[1], sys.argv[2])) diff --git a/codegen.py b/codegen.py deleted file mode 100644 index 8cd9dab8..00000000 --- a/codegen.py +++ /dev/null @@ -1,493 +0,0 @@ -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -from __future__ import nested_scopes - -import sys -sys.path.append("../rabbitmq-codegen") # in case we're next to an experimental revision -sys.path.append("codegen") # in case we're building from a distribution package - -from amqp_codegen import * -import string -import re - -erlangTypeMap = { - 'octet': 'octet', - 'shortstr': 'shortstr', - 'longstr': 'longstr', - 'short': 'shortint', - 'long': 'longint', - 'longlong': 'longlongint', - 'bit': 'bit', - 'table': 'table', - 'timestamp': 'timestamp', -} - -# Coming up with a proper encoding of AMQP tables in JSON is too much -# hassle at this stage. Given that the only default value we are -# interested in is for the empty table, we only support that. -def convertTable(d): - if len(d) == 0: - return "[]" - else: raise 'Non-empty table defaults not supported', d - -erlangDefaultValueTypeConvMap = { - bool : lambda x: str(x).lower(), - str : lambda x: "<<\"" + x + "\">>", - int : lambda x: str(x), - float : lambda x: str(x), - dict: convertTable, - unicode: lambda x: "<<\"" + x.encode("utf-8") + "\">>" -} - -def erlangize(s): - s = s.replace('-', '_') - s = s.replace(' ', '_') - return s - -AmqpMethod.erlangName = lambda m: "'" + erlangize(m.klass.name) + '.' + erlangize(m.name) + "'" - -AmqpClass.erlangName = lambda c: "'" + erlangize(c.name) + "'" - -def erlangConstantName(s): - return '_'.join(re.split('[- ]', s.upper())) - -class PackedMethodBitField: - def __init__(self, index): - self.index = index - self.domain = 'bit' - self.contents = [] - - def extend(self, f): - self.contents.append(f) - - def count(self): - return len(self.contents) - - def full(self): - return self.count() == 8 - -def multiLineFormat(things, prologue, separator, lineSeparator, epilogue, thingsPerLine = 4): - r = [prologue] - i = 0 - for t in things: - if i != 0: - if i % thingsPerLine == 0: - r += [lineSeparator] - else: - r += [separator] - r += [t] - i += 1 - r += [epilogue] - return "".join(r) - -def prettyType(typeName, subTypes, typesPerLine = 4): - """Pretty print a type signature made up of many alternative subtypes""" - sTs = multiLineFormat(subTypes, - "( ", " | ", "\n | ", " )", - thingsPerLine = typesPerLine) - return "-type(%s ::\n %s)." % (typeName, sTs) - -def printFileHeader(): - print """%% Autogenerated code. Do not edit. -%% -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%%""" - -def genErl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldTypeList(fields): - return '[' + ', '.join([erlType(f.domain) for f in fields]) + ']' - - def fieldNameList(fields): - return '[' + ', '.join([erlangize(f.name) for f in fields]) + ']' - - def fieldTempList(fields): - return '[' + ', '.join(['F' + str(f.index) for f in fields]) + ']' - - def fieldMapList(fields): - return ', '.join([erlangize(f.name) + " = F" + str(f.index) for f in fields]) - - def genLookupMethodName(m): - print "lookup_method_name({%d, %d}) -> %s;" % (m.klass.index, m.index, m.erlangName()) - - def genLookupClassName(c): - print "lookup_class_name(%d) -> %s;" % (c.index, c.erlangName()) - - def genMethodId(m): - print "method_id(%s) -> {%d, %d};" % (m.erlangName(), m.klass.index, m.index) - - def genMethodHasContent(m): - print "method_has_content(%s) -> %s;" % (m.erlangName(), str(m.hasContent).lower()) - - def genMethodIsSynchronous(m): - hasNoWait = "nowait" in fieldNameList(m.arguments) - if m.isSynchronous and hasNoWait: - print "is_method_synchronous(#%s{nowait = NoWait}) -> not(NoWait);" % (m.erlangName()) - else: - print "is_method_synchronous(#%s{}) -> %s;" % (m.erlangName(), str(m.isSynchronous).lower()) - - def genMethodFieldTypes(m): - """Not currently used - may be useful in future?""" - print "method_fieldtypes(%s) -> %s;" % (m.erlangName(), fieldTypeList(m.arguments)) - - def genMethodFieldNames(m): - print "method_fieldnames(%s) -> %s;" % (m.erlangName(), fieldNameList(m.arguments)) - - def packMethodFields(fields): - packed = [] - bitfield = None - for f in fields: - if erlType(f.domain) == 'bit': - if not(bitfield) or bitfield.full(): - bitfield = PackedMethodBitField(f.index) - packed.append(bitfield) - bitfield.extend(f) - else: - bitfield = None - packed.append(f) - return packed - - def methodFieldFragment(f): - type = erlType(f.domain) - p = 'F' + str(f.index) - if type == 'shortstr': - return p+'Len:8/unsigned, '+p+':'+p+'Len/binary' - elif type == 'longstr': - return p+'Len:32/unsigned, '+p+':'+p+'Len/binary' - elif type == 'octet': - return p+':8/unsigned' - elif type == 'shortint': - return p+':16/unsigned' - elif type == 'longint': - return p+':32/unsigned' - elif type == 'longlongint': - return p+':64/unsigned' - elif type == 'timestamp': - return p+':64/unsigned' - elif type == 'bit': - return p+'Bits:8' - elif type == 'table': - return p+'Len:32/unsigned, '+p+'Tab:'+p+'Len/binary' - - def genFieldPostprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - for index in range(f.count()): - print " F%d = ((F%dBits band %d) /= 0)," % \ - (f.index + index, - f.index, - 1 << index) - elif type == 'table': - print " F%d = rabbit_binary_parser:parse_table(F%dTab)," % \ - (f.index, f.index) - else: - pass - - def genMethodRecord(m): - print "method_record(%s) -> #%s{};" % (m.erlangName(), m.erlangName()) - - def genDecodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - binaryPattern = ', '.join([methodFieldFragment(f) for f in packedFields]) - if binaryPattern: - restSeparator = ', ' - else: - restSeparator = '' - recordConstructorExpr = '#%s{%s}' % (m.erlangName(), fieldMapList(m.arguments)) - print "decode_method_fields(%s, <<%s>>) ->" % (m.erlangName(), binaryPattern) - genFieldPostprocessing(packedFields) - print " %s;" % (recordConstructorExpr,) - - def genDecodeProperties(c): - print "decode_properties(%d, PropBin) ->" % (c.index) - print " %s = rabbit_binary_parser:parse_properties(%s, PropBin)," % \ - (fieldTempList(c.fields), fieldTypeList(c.fields)) - print " #'P_%s'{%s};" % (erlangize(c.name), fieldMapList(c.fields)) - - def genFieldPreprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - print " F%dBits = (%s)," % \ - (f.index, - ' bor '.join(['(bitvalue(F%d) bsl %d)' % (x.index, x.index - f.index) - for x in f.contents])) - elif type == 'table': - print " F%dTab = rabbit_binary_generator:generate_table(F%d)," % (f.index, f.index) - print " F%dLen = size(F%dTab)," % (f.index, f.index) - elif type == 'shortstr': - print " F%dLen = shortstr_size(F%d)," % (f.index, f.index) - elif type == 'longstr': - print " F%dLen = size(F%d)," % (f.index, f.index) - else: - pass - - def genEncodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - print "encode_method_fields(#%s{%s}) ->" % (m.erlangName(), fieldMapList(m.arguments)) - genFieldPreprocessing(packedFields) - print " <<%s>>;" % (', '.join([methodFieldFragment(f) for f in packedFields])) - - def genEncodeProperties(c): - print "encode_properties(#'P_%s'{%s}) ->" % (erlangize(c.name), fieldMapList(c.fields)) - print " rabbit_binary_generator:encode_properties(%s, %s);" % \ - (fieldTypeList(c.fields), fieldTempList(c.fields)) - - def messageConstantClass(cls): - # We do this because 0.8 uses "soft error" and 8.1 uses "soft-error". - return erlangConstantName(cls) - - def genLookupException(c,v,cls): - mCls = messageConstantClass(cls) - if mCls == 'SOFT_ERROR': genLookupException1(c,'false') - elif mCls == 'HARD_ERROR': genLookupException1(c, 'true') - elif mCls == '': pass - else: raise 'Unknown constant class', cls - - def genLookupException1(c,hardErrorBoolStr): - n = erlangConstantName(c) - print 'lookup_amqp_exception(%s) -> {%s, ?%s, <<"%s">>};' % \ - (n.lower(), hardErrorBoolStr, n, n) - - def genAmqpException(c,v,cls): - n = erlangConstantName(c) - print 'amqp_exception(?%s) -> %s;' % \ - (n, n.lower()) - - methods = spec.allMethods() - - printFileHeader() - module = "rabbit_framing_amqp_%d_%d" % (spec.major, spec.minor) - if spec.revision != 0: - module = "%s_%d" % (module, spec.revision) - if module == "rabbit_framing_amqp_8_0": - module = "rabbit_framing_amqp_0_8" - print "-module(%s)." % module - print """-include("rabbit_framing.hrl"). - --export([version/0]). --export([lookup_method_name/1]). --export([lookup_class_name/1]). - --export([method_id/1]). --export([method_has_content/1]). --export([is_method_synchronous/1]). --export([method_record/1]). --export([method_fieldnames/1]). --export([decode_method_fields/2]). --export([decode_properties/2]). --export([encode_method_fields/1]). --export([encode_properties/1]). --export([lookup_amqp_exception/1]). --export([amqp_exception/1]). - -""" - print "%% Various types" - print "-ifdef(use_specs)." - - print """-export_type([amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(amqp_field_type() :: - 'longstr' | 'signedint' | 'decimal' | 'timestamp' | - 'table' | 'byte' | 'double' | 'float' | 'long' | - 'short' | 'bool' | 'binary' | 'void' | 'array'). --type(amqp_property_type() :: - 'shortstr' | 'longstr' | 'octet' | 'shortint' | 'longint' | - 'longlongint' | 'timestamp' | 'bit' | 'table'). - --type(amqp_table() :: [{binary(), amqp_field_type(), amqp_value()}]). --type(amqp_array() :: [{amqp_field_type(), amqp_value()}]). --type(amqp_value() :: binary() | % longstr - integer() | % signedint - {non_neg_integer(), non_neg_integer()} | % decimal - amqp_table() | - amqp_array() | - byte() | % byte - float() | % double - integer() | % long - integer() | % short - boolean() | % bool - binary() | % binary - 'undefined' | % void - non_neg_integer() % timestamp - ). -""" - - print prettyType("amqp_method_name()", - [m.erlangName() for m in methods]) - print prettyType("amqp_method()", - ["{%s, %s}" % (m.klass.index, m.index) for m in methods], - 6) - print prettyType("amqp_method_record()", - ["#%s{}" % (m.erlangName()) for m in methods]) - fieldNames = set() - for m in methods: - fieldNames.update(m.arguments) - fieldNames = [erlangize(f.name) for f in fieldNames] - print prettyType("amqp_method_field_name()", - fieldNames) - print prettyType("amqp_property_record()", - ["#'P_%s'{}" % erlangize(c.name) for c in spec.allClasses()]) - print prettyType("amqp_exception()", - ["'%s'" % erlangConstantName(c).lower() for (c, v, cls) in spec.constants]) - print prettyType("amqp_exception_code()", - ["%i" % v for (c, v, cls) in spec.constants]) - classIds = set() - for m in spec.allMethods(): - classIds.add(m.klass.index) - print prettyType("amqp_class_id()", - ["%i" % ci for ci in classIds]) - print "-endif. % use_specs" - - print """ -%% Method signatures --ifdef(use_specs). --spec(version/0 :: () -> {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --spec(lookup_method_name/1 :: (amqp_method()) -> amqp_method_name()). --spec(method_id/1 :: (amqp_method_name()) -> amqp_method()). --spec(method_has_content/1 :: (amqp_method_name()) -> boolean()). --spec(is_method_synchronous/1 :: (amqp_method_record()) -> boolean()). --spec(method_record/1 :: (amqp_method_name()) -> amqp_method_record()). --spec(method_fieldnames/1 :: (amqp_method_name()) -> [amqp_method_field_name()]). --spec(decode_method_fields/2 :: - (amqp_method_name(), binary()) -> amqp_method_record() | rabbit_types:connection_exit()). --spec(decode_properties/2 :: (non_neg_integer(), binary()) -> amqp_property_record()). --spec(encode_method_fields/1 :: (amqp_method_record()) -> binary()). --spec(encode_properties/1 :: (amqp_property_record()) -> binary()). --spec(lookup_amqp_exception/1 :: (amqp_exception()) -> {boolean(), amqp_exception_code(), binary()}). --spec(amqp_exception/1 :: (amqp_exception_code()) -> amqp_exception()). --endif. % use_specs - -bitvalue(true) -> 1; -bitvalue(false) -> 0; -bitvalue(undefined) -> 0. - -shortstr_size(S) -> - case size(S) of - Len when Len =< 255 -> Len; - _ -> exit(method_field_shortstr_overflow) - end. -""" - version = "{%d, %d, %d}" % (spec.major, spec.minor, spec.revision) - if version == '{8, 0, 0}': version = '{0, 8, 0}' - print "version() -> %s." % (version) - - for m in methods: genLookupMethodName(m) - print "lookup_method_name({_ClassId, _MethodId} = Id) -> exit({unknown_method_id, Id})." - - for c in spec.allClasses(): genLookupClassName(c) - print "lookup_class_name(ClassId) -> exit({unknown_class_id, ClassId})." - - for m in methods: genMethodId(m) - print "method_id(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodHasContent(m) - print "method_has_content(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodIsSynchronous(m) - print "is_method_synchronous(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodRecord(m) - print "method_record(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodFieldNames(m) - print "method_fieldnames(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genDecodeMethodFields(m) - print "decode_method_fields(Name, BinaryFields) ->" - print " rabbit_misc:frame_error(Name, BinaryFields)." - - for c in spec.allClasses(): genDecodeProperties(c) - print "decode_properties(ClassId, _BinaryFields) -> exit({unknown_class_id, ClassId})." - - for m in methods: genEncodeMethodFields(m) - print "encode_method_fields(Record) -> exit({unknown_method_name, element(1, Record)})." - - for c in spec.allClasses(): genEncodeProperties(c) - print "encode_properties(Record) -> exit({unknown_properties_record, Record})." - - for (c,v,cls) in spec.constants: genLookupException(c,v,cls) - print "lookup_amqp_exception(Code) ->" - print " rabbit_log:warning(\"Unknown AMQP error code '~p'~n\", [Code])," - print " {true, ?INTERNAL_ERROR, <<\"INTERNAL_ERROR\">>}." - - for(c,v,cls) in spec.constants: genAmqpException(c,v,cls) - print "amqp_exception(_Code) -> undefined." - -def genHrl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldNameList(fields): - return ', '.join([erlangize(f.name) for f in fields]) - - def fieldNameListDefaults(fields): - def fillField(field): - result = erlangize(f.name) - if field.defaultvalue != None: - conv_fn = erlangDefaultValueTypeConvMap[type(field.defaultvalue)] - result += ' = ' + conv_fn(field.defaultvalue) - return result - return ', '.join([fillField(f) for f in fields]) - - methods = spec.allMethods() - - printFileHeader() - print "-define(PROTOCOL_PORT, %d)." % (spec.port) - - for (c,v,cls) in spec.constants: - print "-define(%s, %s)." % (erlangConstantName(c), v) - - print "%% Method field records." - for m in methods: - print "-record(%s, {%s})." % (m.erlangName(), fieldNameListDefaults(m.arguments)) - - print "%% Class property records." - for c in spec.allClasses(): - print "-record('P_%s', {%s})." % (erlangize(c.name), fieldNameList(c.fields)) - - -def generateErl(specPath): - genErl(AmqpSpec(specPath)) - -def generateHrl(specPath): - genHrl(AmqpSpec(specPath)) - -if __name__ == "__main__": - do_main_dict({"header": generateHrl, - "body": generateErl}) - diff --git a/docs/examples-to-end.xsl b/docs/examples-to-end.xsl deleted file mode 100644 index d9686ada..00000000 --- a/docs/examples-to-end.xsl +++ /dev/null @@ -1,94 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - Examples - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [] - - - - {} - - - - - - - - diff --git a/docs/html-to-website-xml.xsl b/docs/html-to-website-xml.xsl deleted file mode 100644 index 4bfcf6ca..00000000 --- a/docs/html-to-website-xml.xsl +++ /dev/null @@ -1,98 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - -type="text/xml" href="page.xsl" - - - <xsl:value-of select="document($original)/refentry/refnamediv/refname"/><xsl:if test="document($original)/refentry/refmeta/manvolnum">(<xsl:value-of select="document($original)/refentry/refmeta/manvolnum"/>)</xsl:if> manual page - 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- - - - diff --git a/docs/rabbitmq-env.conf.5.xml b/docs/rabbitmq-env.conf.5.xml deleted file mode 100644 index c887596c..00000000 --- a/docs/rabbitmq-env.conf.5.xml +++ /dev/null @@ -1,83 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-env.conf - 5 - RabbitMQ Server - - - - rabbitmq-env.conf - default settings for RabbitMQ AMQP server - - - - Description - -/etc/rabbitmq/rabbitmq-env.conf contains variable settings that override the -defaults built in to the RabbitMQ startup scripts. - - -The file is interpreted by the system shell, and so should consist of -a sequence of shell environment variable definitions. Normal shell -syntax is permitted (since the file is sourced using the shell "." -operator), including line comments starting with "#". - - -In order of preference, the startup scripts get their values from the -environment, from /etc/rabbitmq/rabbitmq-env.conf and finally from the -built-in default values. For example, for the RABBITMQ_NODENAME -setting, - - - RABBITMQ_NODENAME - - -from the environment is checked first. If it is absent or equal to the -empty string, then - - - NODENAME - - -from /etc/rabbitmq/rabbitmq-env.conf is checked. If it is also absent -or set equal to the empty string then the default value from the -startup script is used. - - -The variable names in /etc/rabbitmq/rabbitmq-env.conf are always equal to the -environment variable names, with the RABBITMQ_ prefix removed: -RABBITMQ_NODE_PORT from the environment becomes NODE_PORT in the -/etc/rabbitmq/rabbitmq-env.conf file, etc. - - For example: - -# I am a complete /etc/rabbitmq/rabbitmq-env.conf file. -# Comment lines start with a hash character. -# This is a /bin/sh script file - use ordinary envt var syntax -NODENAME=hare - - - This is an example of a complete - /etc/rabbitmq/rabbitmq-env.conf file that overrides the default Erlang - node name from "rabbit" to "hare". - - - - - - See also - - rabbitmq-server1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-server.1.xml b/docs/rabbitmq-server.1.xml deleted file mode 100644 index ca63927c..00000000 --- a/docs/rabbitmq-server.1.xml +++ /dev/null @@ -1,131 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-server - 1 - RabbitMQ Server - - - - rabbitmq-server - start RabbitMQ AMQP server - - - - - rabbitmq-server - -detached - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-server in the foreground displays a banner message, -and reports on progress in the startup sequence, concluding with the -message "broker running", indicating that the RabbitMQ broker has been -started successfully. To shut down the server, just terminate the -process or use rabbitmqctl(1). - - - - - Environment - - - - RABBITMQ_MNESIA_BASE - - -Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory where -Mnesia database files should be placed. - - - - - - RABBITMQ_LOG_BASE - - -Defaults to /var/log/rabbitmq. Log files generated by the server will -be placed in this directory. - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - - - - Options - - - -detached - - - start the server process in the background - - For example: - rabbitmq-server -detached - - Runs RabbitMQ AMQP server in the background. - - - - - - - - See also - - rabbitmq-env.conf5 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-service.xml b/docs/rabbitmq-service.xml deleted file mode 100644 index 3368960b..00000000 --- a/docs/rabbitmq-service.xml +++ /dev/null @@ -1,217 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-service.bat - RabbitMQ Server - - - - rabbitmq-service.bat - manage RabbitMQ AMQP service - - - - - rabbitmq-service.bat - command - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-service allows the RabbitMQ broker to be run as a -service on NT/2000/2003/XP/Vista® environments. The RabbitMQ broker -service can be started and stopped using the Windows® services -applet. - - -By default the service will run in the authentication context of the -local system account. It is therefore necessary to synchronise Erlang -cookies between the local system account (typically -C:\WINDOWS\.erlang.cookie and the account that will be used to -run rabbitmqctl. - - - - - Commands - - - - help - - -Display usage information. - - - - - - install - - -Install the service. The service will not be started. -Subsequent invocations will update the service parameters if -relevant environment variables were modified. - - - - - - remove - - -Remove the service. If the service is running then it will -automatically be stopped before being removed. No files will be -deleted as a consequence and rabbitmq-server will remain operable. - - - - - - start - - -Start the service. The service must have been correctly installed -beforehand. - - - - - - stop - - -Stop the service. The service must be running for this command to -have any effect. - - - - - - disable - - -Disable the service. This is the equivalent of setting the startup -type to Disabled using the service control panel. - - - - - - enable - - -Enable the service. This is the equivalent of setting the startup -type to Automatic using the service control panel. - - - - - - - - Environment - - - - RABBITMQ_SERVICENAME - - -Defaults to RabbitMQ. - - - - - - RABBITMQ_BASE - - -Defaults to the application data directory of the current user. -This is the location of log and database directories. - - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - ERLANG_SERVICE_MANAGER_PATH - - -Defaults to C:\Program Files\erl5.5.5\erts-5.5.5\bin -(or C:\Program Files (x86)\erl5.5.5\erts-5.5.5\bin for 64-bit -environments). This is the installation location of the Erlang service -manager. - - - - - - RABBITMQ_CONSOLE_LOG - - -Set this varable to new or reuse to have the console -output from the server redirected to a file named SERVICENAME.debug -in the application data directory of the user that installed the service. -Under Vista this will be C:\Users\AppData\username\SERVICENAME. -Under previous versions of Windows this will be -C:\Documents and Settings\username\Application Data\SERVICENAME. -If RABBITMQ_CONSOLE_LOG is set to new then a new file will be -created each time the service starts. If RABBITMQ_CONSOLE_LOG is -set to reuse then the file will be overwritten each time the -service starts. The default behaviour when RABBITMQ_CONSOLE_LOG is -not set or set to a value other than new or reuse is to discard -the server output. - - - - - - diff --git a/docs/rabbitmqctl.1.xml b/docs/rabbitmqctl.1.xml deleted file mode 100644 index 3550e5ea..00000000 --- a/docs/rabbitmqctl.1.xml +++ /dev/null @@ -1,1269 +0,0 @@ - - - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmqctl - 1 - RabbitMQ Service - - - - rabbitmqctl - command line tool for managing a RabbitMQ broker - - - - - rabbitmqctl - -n node - -q - command - command options - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. - - - rabbitmqctl is a command line tool for managing a - RabbitMQ broker. It performs all actions by connecting to one of the - broker's nodes. - - - - - Options - - - -n node - - - Default node is "rabbit@server", where server is the local host. On - a host named "server.example.com", the node name of the RabbitMQ - Erlang node will usually be rabbit@server (unless RABBITMQ_NODENAME - has been set to some non-default value at broker startup time). The - output of hostname -s is usually the correct suffix to use after the - "@" sign. See rabbitmq-server(1) for details of configuring the - RabbitMQ broker. - - - - - -q - - - Quiet output mode is selected with the "-q" flag. Informational - messages are suppressed when quiet mode is in effect. - - - - - - - - Commands - - - Application and Cluster Management - - - - stop - - - Stops the Erlang node on which RabbitMQ is running. To - restart the node follow the instructions for Running - the Server in the installation - guide. - - For example: - rabbitmqctl stop - - This command instructs the RabbitMQ node to terminate. - - - - - - stop_app - - - Stops the RabbitMQ application, leaving the Erlang node - running. - - - This command is typically run prior to performing other - management actions that require the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl stop_app - - This command instructs the RabbitMQ node to stop the - RabbitMQ application. - - - - - - start_app - - - Starts the RabbitMQ application. - - - This command is typically run after performing other - management actions that required the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl start_app - - This command instructs the RabbitMQ node to start the - RabbitMQ application. - - - - - - wait - - - Wait for the RabbitMQ application to start. - - - This command will wait for the RabbitMQ application to - start at the node. As long as the Erlang node is up but - the RabbitMQ application is down it will wait - indefinitely. If the node itself goes down, or takes - more than five seconds to come up, it will fail. - - For example: - rabbitmqctl wait - - This command will return when the RabbitMQ node has - started up. - - - - - - status - - - Displays various information about the RabbitMQ broker, - such as whether the RabbitMQ application on the current - node, its version number, what nodes are part of the - broker, which of these are running. - - For example: - rabbitmqctl status - - This command displays information about the RabbitMQ - broker. - - - - - - reset - - - Return a RabbitMQ node to its virgin state. - - - Removes the node from any cluster it belongs to, removes - all data from the management database, such as configured - users and vhosts, and deletes all persistent - messages. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl reset - - This command resets the RabbitMQ node. - - - - - - force_reset - - - Forcefully return a RabbitMQ node to its virgin state. - - - The force_reset command differs from - reset in that it resets the node - unconditionally, regardless of the current management - database state and cluster configuration. It should only - be used as a last resort if the database or cluster - configuration has been corrupted. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl force_reset - - This command resets the RabbitMQ node. - - - - - - rotate_logs suffix - - - Instruct the RabbitMQ node to rotate the log files. - - - The RabbitMQ broker will attempt to append the current contents - of the log file to the file with name composed of the original - name and the suffix. - It will create a new file if such a file does not already exist. - When no is specified, the empty log file is - simply created at the original location; no rotation takes place. - - - When an error occurs while appending the contents of the old log - file, the operation behaves in the same way as if no was - specified. - - - This command might be helpful when you are e.g. writing your - own logrotate script and you do not want to restart the RabbitMQ - node. - - For example: - rabbitmqctl rotate_logs .1 - - This command instructs the RabbitMQ node to append the current content - of the log files to the files with names consisting of the original logs' - names and ".1" suffix, e.g. rabbit.log.1. Finally, the old log files are reopened. - - - - - - - - Cluster management - - - - cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. To cluster with currently offline nodes, - use force_cluster. - - - Cluster nodes can be of two types: disk or ram. Disk nodes - replicate data in ram and on disk, thus providing - redundancy in the event of node failure and recovery from - global events such as power failure across all nodes. Ram - nodes replicate data in ram only and are mainly used for - scalability. A cluster must always have at least one disk node. - - - If the current node is to become a disk node it needs to - appear in the cluster node list. Otherwise it becomes a - ram node. If the node list is empty or only contains the - current node then the node becomes a standalone, - i.e. non-clustered, (disk) node. - - - After executing the cluster command, whenever - the RabbitMQ application is started on the current node it - will attempt to connect to the specified nodes, thus - becoming an active node in the cluster comprising those - nodes (and possibly others). - - - The list of nodes does not have to contain all the - cluster's nodes; a subset is sufficient. Also, clustering - generally succeeds as long as at least one of the - specified nodes is active. Hence adjustments to the list - are only necessary if the cluster configuration is to be - altered radically. - - - For this command to succeed the RabbitMQ application must - have been stopped, e.g. with stop_app. Furthermore, - turning a standalone node into a clustered node requires - the node be reset first, - in order to avoid accidental destruction of data with the - cluster command. - - - For more details see the clustering guide. - - For example: - rabbitmqctl cluster rabbit@tanto hare@elena - - This command instructs the RabbitMQ node to join the - cluster with nodes rabbit@tanto and - hare@elena. If the node is one of these then - it becomes a disk node, otherwise a ram node. - - - - - force_cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. This will succeed even if the specified nodes - are offline. For a more detailed description, see - cluster. - - - Note that this variant of the cluster command just - ignores the current status of the specified nodes. - Clustering may still fail for a variety of other - reasons. - - - - - - - - Closing individual connections - - - - close_connection connectionpid explanation - - - - connectionpid - Id of the Erlang process associated with the connection to close. - - - explanation - Explanation string. - - - - Instruct the broker to close the connection associated - with the Erlang process id (see also the - list_connections - command), passing the string to the - connected client as part of the AMQP connection shutdown - protocol. - - For example: - rabbitmqctl close_connection "<rabbit@tanto.4262.0>" "go away" - - This command instructs the RabbitMQ broker to close the - connection associated with the Erlang process - id <rabbit@tanto.4262.0>, passing the - explanation go away to the connected client. - - - - - - - - User management - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Users from any alternative - authentication backend will not be visible - to rabbitmqctl. - - - - add_user username password - - - - username - The name of the user to create. - - - password - The password the created user will use to log in to the broker. - - - For example: - rabbitmqctl add_user tonyg changeit - - This command instructs the RabbitMQ broker to create a - (non-administrative) user named tonyg with - (initial) password - changeit. - - - - - - delete_user username - - - - username - The name of the user to delete. - - - For example: - rabbitmqctl delete_user tonyg - - This command instructs the RabbitMQ broker to delete the - user named tonyg. - - - - - - change_password username newpassword - - - - username - The name of the user whose password is to be changed. - - - newpassword - The new password for the user. - - - For example: - rabbitmqctl change_password tonyg newpass - - This command instructs the RabbitMQ broker to change the - password for the user named tonyg to - newpass. - - - - - - clear_password username - - - - username - The name of the user whose password is to be cleared. - - - For example: - rabbitmqctl clear_password tonyg - - This command instructs the RabbitMQ broker to clear the - password for the user named - tonyg. This user now cannot log in with a password (but may be able to through e.g. SASL EXTERNAL if configured). - - - - - - set_admin username - - - - username - The name of the user whose administrative - status is to be set. - - - For example: - rabbitmqctl set_admin tonyg - - This command instructs the RabbitMQ broker to ensure the user - named tonyg is an administrator. This has no - effect when the user logs in via AMQP, but can be used to permit - the user to manage users, virtual hosts and permissions when the - user logs in via some other means (for example with the - management plugin). - - - - - - clear_admin username - - - - username - The name of the user whose administrative - status is to be cleared. - - - For example: - rabbitmqctl clear_admin tonyg - - This command instructs the RabbitMQ broker to ensure the user - named tonyg is not an administrator. - - - - - - list_users - - Lists users - For example: - rabbitmqctl list_users - - This command instructs the RabbitMQ broker to list all - users. Each result row will contain the user name and - the administrator status of the user, in that order. - - - - - - - - Access control - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Permissions for users from any - alternative authorisation backend will not be visible - to rabbitmqctl. - - - - add_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to create. - - - - Creates a virtual host. - - For example: - rabbitmqctl add_vhost test - - This command instructs the RabbitMQ broker to create a new - virtual host called test. - - - - - - delete_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to delete. - - - - Deletes a virtual host. - - - Deleting a virtual host deletes all its exchanges, - queues, user mappings and associated permissions. - - For example: - rabbitmqctl delete_vhost test - - This command instructs the RabbitMQ broker to delete the - virtual host called test. - - - - - - list_vhosts - - - Lists virtual hosts. - - For example: - rabbitmqctl list_vhosts - - This command instructs the RabbitMQ broker to list all - virtual hosts. - - - - - - set_permissions -p vhostpath user conf write read - - - - vhostpath - The name of the virtual host to which to grant the user access, defaulting to /. - - - user - The name of the user to grant access to the specified virtual host. - - - conf - A regular expression matching resource names for which the user is granted configure permissions. - - - write - A regular expression matching resource names for which the user is granted write permissions. - - - read - A regular expression matching resource names for which the user is granted read permissions. - - - - Sets user permissions. - - For example: - rabbitmqctl set_permissions -p /myvhost tonyg "^tonyg-.*" ".*" ".*" - - This command instructs the RabbitMQ broker to grant the - user named tonyg access to the virtual host - called /myvhost, with configure permissions - on all resources whose names starts with "tonyg-", and - write and read permissions on all resources. - - - - - - clear_permissions -p vhostpath username - - - - vhostpath - The name of the virtual host to which to deny the user access, defaulting to /. - - - username - The name of the user to deny access to the specified virtual host. - - - - Sets user permissions. - - For example: - rabbitmqctl clear_permissions -p /myvhost tonyg - - This command instructs the RabbitMQ broker to deny the - user named tonyg access to the virtual host - called /myvhost. - - - - - - list_permissions -p vhostpath - - - - vhostpath - The name of the virtual host for which to list the users that have been granted access to it, and their permissions. Defaults to /. - - - - Lists permissions in a virtual host. - - For example: - rabbitmqctl list_permissions -p /myvhost - - This command instructs the RabbitMQ broker to list all - the users which have been granted access to the virtual - host called /myvhost, and the - permissions they have for operations on resources in - that virtual host. Note that an empty string means no - permissions granted. - - - - - - list_user_permissions -p vhostpath username - - - - username - The name of the user for which to list the permissions. - - - - Lists user permissions. - - For example: - rabbitmqctl list_user_permissions tonyg - - This command instructs the RabbitMQ broker to list all the - virtual hosts to which the user named tonyg - has been granted access, and the permissions the user has - for operations on resources in these virtual hosts. - - - - - - - - Server Status - - The server status queries interrogate the server and return a list of - results with tab-delimited columns. Some queries (list_queues, - list_exchanges, list_bindings, and - list_consumers) accept an - optional vhost parameter. This parameter, if present, must be - specified immediately after the query. - - - The list_queues, list_exchanges and list_bindings commands accept an - optional virtual host parameter for which to display results. The - default value is "/". - - - - - list_queues -p vhostpath queueinfoitem ... - - - Returns queue details. Queue details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The queueinfoitem parameter is used to indicate which queue - information items to include in the results. The column order in the - results will match the order of the parameters. - queueinfoitem can take any value from the list - that follows: - - - - name - The name of the queue with non-ASCII characters escaped as in C. - - - durable - Whether or not the queue survives server restarts. - - - auto_delete - Whether the queue will be deleted automatically when no longer used. - - - arguments - Queue arguments. - - - pid - Id of the Erlang process associated with the queue. - - - owner_pid - Id of the Erlang process representing the connection - which is the exclusive owner of the queue. Empty if the - queue is non-exclusive. - - - exclusive_consumer_pid - Id of the Erlang process representing the channel of the - exclusive consumer subscribed to this queue. Empty if - there is no exclusive consumer. - - - exclusive_consumer_tag - Consumer tag of the exclusive consumer subscribed to - this queue. Empty if there is no exclusive consumer. - - - messages_ready - Number of messages ready to be delivered to clients. - - - messages_unacknowledged - Number of messages delivered to clients but not yet acknowledged. - - - messages - Sum of ready and unacknowledged messages - (queue depth). - - - consumers - Number of consumers. - - - memory - Bytes of memory consumed by the Erlang process associated with the - queue, including stack, heap and internal structures. - - - - If no queueinfoitems are specified then queue name and depth are - displayed. - - - For example: - - rabbitmqctl list_queues -p /myvhost messages consumers - - This command displays the depth and number of consumers for each - queue of the virtual host named /myvhost. - - - - - - list_exchanges -p vhostpath exchangeinfoitem ... - - - Returns exchange details. Exchange details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The exchangeinfoitem parameter is used to indicate which - exchange information items to include in the results. The column order in the - results will match the order of the parameters. - exchangeinfoitem can take any value from the list - that follows: - - - - name - The name of the exchange with non-ASCII characters escaped as in C. - - - type - The exchange type (one of [direct, - topic, headers, - fanout]). - - - durable - Whether or not the exchange survives server restarts. - - - auto_delete - Whether the exchange will be deleted automatically when no longer used. - - - internal - Whether the exchange is internal, i.e. cannot be directly published to by a client. - - - arguments - Exchange arguments. - - - - If no exchangeinfoitems are specified then - exchange name and type are displayed. - - - For example: - - rabbitmqctl list_exchanges -p /myvhost name type - - This command displays the name and type for each - exchange of the virtual host named /myvhost. - - - - - - list_bindings -p vhostpath bindinginfoitem ... - - - Returns binding details. By default the bindings for - the / virtual host are returned. The - "-p" flag can be used to override this default. - - - The bindinginfoitem parameter is used - to indicate which binding information items to include - in the results. The column order in the results will - match the order of the parameters. - bindinginfoitem can take any value - from the list that follows: - - - - source_name - The name of the source of messages to - which the binding is attached. With non-ASCII - characters escaped as in C. - - - source_kind - The kind of the source of messages to - which the binding is attached. Currently always - queue. With non-ASCII characters escaped as in - C. - - - destination_name - The name of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - destination_kind - The kind of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - routing_key - The binding's routing key, with - non-ASCII characters escaped as in C. - - - arguments - The binding's arguments. - - - - If no bindinginfoitems are specified then - all above items are displayed. - - - For example: - - rabbitmqctl list_bindings -p /myvhost exchange_name queue_name - - This command displays the exchange name and queue name - of the bindings in the virtual host - named /myvhost. - - - - - - list_connections connectioninfoitem ... - - - Returns TCP/IP connection statistics. - - - The connectioninfoitem parameter is used to indicate - which connection information items to include in the results. The - column order in the results will match the order of the parameters. - connectioninfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - address - Server IP address. - - - port - Server port. - - - peer_address - Peer address. - - - peer_port - Peer port. - - - ssl - Boolean indicating whether the - connection is secured with SSL. - - - ssl_protocol - SSL protocol - (e.g. tlsv1) - - - ssl_key_exchange - SSL key exchange algorithm - (e.g. rsa) - - - ssl_cipher - SSL cipher algorithm - (e.g. aes_256_cbc) - - - ssl_hash - SSL hash function - (e.g. sha) - - - peer_cert_subject - The subject of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_issuer - The issuer of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_validity - The period for which the peer's SSL - certificate is valid. - - - state - Connection state (one of [starting, tuning, - opening, running, closing, closed]). - - - channels - Number of channels using the connection. - - - protocol - Version of the AMQP protocol in use (currently one of {0,9,1} or {0,8,0}). Note that if a client requests an AMQP 0-9 connection, we treat it as AMQP 0-9-1. - - - auth_mechanism - SASL authentication mechanism used, such as PLAIN. - - - user - Username associated with the connection. - - - vhost - Virtual host name with non-ASCII characters escaped as in C. - - - timeout - Connection timeout. - - - frame_max - Maximum frame size (bytes). - - - client_properties - Informational properties transmitted by the client - during connection establishment. - - - recv_oct - Octets received. - - - recv_cnt - Packets received. - - - send_oct - Octets send. - - - send_cnt - Packets sent. - - - send_pend - Send queue size. - - - - If no connectioninfoitems are specified then user, peer - address, peer port and connection state are displayed. - - - - For example: - - rabbitmqctl list_connections send_pend port - - This command displays the send queue size and server port for each - connection. - - - - - - list_channels channelinfoitem ... - - - Returns information on all current channels, the logical - containers executing most AMQP commands. This includes - channels that are part of ordinary AMQP connections, and - channels created by various plug-ins and other extensions. - - - The channelinfoitem parameter is used to - indicate which channel information items to include in the - results. The column order in the results will match the - order of the parameters. - channelinfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - connection - Id of the Erlang process associated with the connection - to which the channel belongs. - - - number - The number of the channel, which uniquely identifies it within - a connection. - - - user - Username associated with the channel. - - - vhost - Virtual host in which the channel operates. - - - transactional - True if the channel is in transactional mode, false otherwise. - - - consumer_count - Number of logical AMQP consumers retrieving messages via - the channel. - - - messages_unacknowledged - Number of messages delivered via this channel but not - yet acknowledged. - - - acks_uncommitted - Number of acknowledgements received in an as yet - uncommitted transaction. - - - prefetch_count - QoS prefetch count limit in force, 0 if unlimited. - - - client_flow_blocked - True if the client issued a - channel.flow{active=false} - command, blocking the server from delivering - messages to the channel's consumers. - - - - confirm - True if the channel is in confirm mode, false otherwise. - - - messages_unconfirmed - Number of published messages not yet - confirmed. On channels not in confirm mode, this - remains 0. - - - - If no channelinfoitems are specified then pid, - user, transactional, consumer_count, and - messages_unacknowledged are assumed. - - - - For example: - - rabbitmqctl list_channels connection messages_unacknowledged - - This command displays the connection process and count - of unacknowledged messages for each channel. - - - - - - list_consumers - - - List consumers, i.e. subscriptions to a queue's message - stream. Each line printed shows, separated by tab - characters, the name of the queue subscribed to, the id of - the channel process via which the subscription was created - and is managed, the consumer tag which uniquely identifies - the subscription within a channel, and a boolean - indicating whether acknowledgements are expected for - messages delivered to this consumer. - - - The output format for "list_consumers" is a list of rows containing, - in order, the queue name, channel process id, consumer tag, and a - boolean indicating whether acknowledgements are expected from the - consumer. - - - - - - - - diff --git a/docs/remove-namespaces.xsl b/docs/remove-namespaces.xsl deleted file mode 100644 index 7f7f3c12..00000000 --- a/docs/remove-namespaces.xsl +++ /dev/null @@ -1,18 +0,0 @@ - - - - - - - - - - - - - - - diff --git a/docs/usage.xsl b/docs/usage.xsl deleted file mode 100644 index a6cebd93..00000000 --- a/docs/usage.xsl +++ /dev/null @@ -1,78 +0,0 @@ - - - - - - - - - - -%% Generated, do not edit! --module(). --export([usage/0]). -usage() -> %QUOTE%Usage: - - - - - - - - - - - - Options: - - - - - , - - - - - - - - - - - - - Commands: - - - - - - - - - -%QUOTE%. - - - -<> must be a member of the list [, ]. - - - - - - - - - -[] -<> - - diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in deleted file mode 100644 index 014c18b0..00000000 --- a/ebin/rabbit_app.in +++ /dev/null @@ -1,45 +0,0 @@ -{application, rabbit, %% -*- erlang -*- - [{description, "RabbitMQ"}, - {id, "RabbitMQ"}, - {vsn, "%%VSN%%"}, - {modules, []}, - {registered, [rabbit_amqqueue_sup, - rabbit_log, - rabbit_node_monitor, - rabbit_router, - rabbit_sup, - rabbit_tcp_client_sup, - rabbit_direct_client_sup]}, - {applications, [kernel, stdlib, sasl, mnesia, os_mon]}, -%% we also depend on crypto, public_key and ssl but they shouldn't be -%% in here as we don't actually want to start it - {mod, {rabbit, []}}, - {env, [{tcp_listeners, [5672]}, - {ssl_listeners, []}, - {ssl_options, []}, - {vm_memory_high_watermark, 0.4}, - {msg_store_index_module, rabbit_msg_store_ets_index}, - {backing_queue_module, rabbit_variable_queue}, - {frame_max, 131072}, - {persister_max_wrap_entries, 500}, - {persister_hibernate_after, 10000}, - {msg_store_file_size_limit, 16777216}, - {queue_index_max_journal_entries, 262144}, - {default_user, <<"guest">>}, - {default_pass, <<"guest">>}, - {default_user_is_admin, true}, - {default_vhost, <<"/">>}, - {default_permissions, [<<".*">>, <<".*">>, <<".*">>]}, - {cluster_nodes, []}, - {server_properties, []}, - {collect_statistics, none}, - {auth_mechanisms, ['PLAIN', 'AMQPLAIN']}, - {auth_backends, [rabbit_auth_backend_internal]}, - {delegate_count, 16}, - {tcp_listen_options, [binary, - {packet, raw}, - {reuseaddr, true}, - {backlog, 128}, - {nodelay, true}, - {exit_on_close, false}]} - ]}]}. diff --git a/generate_app b/generate_app deleted file mode 100644 index 576b485e..00000000 --- a/generate_app +++ /dev/null @@ -1,12 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- - -main([BeamDir, TargetFile]) -> - Modules = [list_to_atom(filename:basename(F, ".beam")) || - F <- filelib:wildcard("*.beam", BeamDir)], - {ok, {application, Application, Properties}} = io:read(''), - NewProperties = lists:keyreplace(modules, 1, Properties, - {modules, Modules}), - file:write_file( - TargetFile, - io_lib:format("~p.~n", [{application, Application, NewProperties}])). diff --git a/generate_deps b/generate_deps deleted file mode 100644 index ddfca816..00000000 --- a/generate_deps +++ /dev/null @@ -1,57 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- --mode(compile). - -%% We expect the list of Erlang source and header files to arrive on -%% stdin, with the entries colon-separated. -main([TargetFile, EbinDir]) -> - ErlsAndHrls = [ string:strip(S,left) || - S <- string:tokens(io:get_line(""), ":\n")], - ErlFiles = [F || F <- ErlsAndHrls, lists:suffix(".erl", F)], - Modules = sets:from_list( - [list_to_atom(filename:basename(FileName, ".erl")) || - FileName <- ErlFiles]), - HrlFiles = [F || F <- ErlsAndHrls, lists:suffix(".hrl", F)], - IncludeDirs = lists:usort([filename:dirname(Path) || Path <- HrlFiles]), - Headers = sets:from_list(HrlFiles), - Deps = lists:foldl( - fun (Path, Deps1) -> - dict:store(Path, detect_deps(IncludeDirs, EbinDir, - Modules, Headers, Path), - Deps1) - end, dict:new(), ErlFiles), - {ok, Hdl} = file:open(TargetFile, [write, delayed_write]), - dict:fold( - fun (_Path, [], ok) -> - ok; - (Path, Dep, ok) -> - Module = filename:basename(Path, ".erl"), - ok = file:write(Hdl, [EbinDir, "/", Module, ".beam: ", - Path]), - ok = sets:fold(fun (E, ok) -> file:write(Hdl, [" ", E]) end, - ok, Dep), - file:write(Hdl, ["\n"]) - end, ok, Deps), - ok = file:write(Hdl, [TargetFile, ": ", escript:script_name(), "\n"]), - ok = file:sync(Hdl), - ok = file:close(Hdl). - -detect_deps(IncludeDirs, EbinDir, Modules, Headers, Path) -> - {ok, Forms} = epp:parse_file(Path, IncludeDirs, [{use_specs, true}]), - lists:foldl( - fun ({attribute, _LineNumber, Attribute, Behaviour}, Deps) - when Attribute =:= behaviour orelse Attribute =:= behavior -> - case sets:is_element(Behaviour, Modules) of - true -> sets:add_element( - [EbinDir, "/", atom_to_list(Behaviour), ".beam"], - Deps); - false -> Deps - end; - ({attribute, _LineNumber, file, {FileName, _LineNumber1}}, Deps) -> - case sets:is_element(FileName, Headers) of - true -> sets:add_element(FileName, Deps); - false -> Deps - end; - (_Form, Deps) -> - Deps - end, sets:new(), Forms). diff --git a/include/gm_specs.hrl b/include/gm_specs.hrl deleted file mode 100644 index ee29706e..00000000 --- a/include/gm_specs.hrl +++ /dev/null @@ -1,28 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --type(callback_result() :: 'ok' | {'stop', any()} | {'become', atom(), args()}). --type(args() :: any()). --type(members() :: [pid()]). - --spec(joined/2 :: (args(), members()) -> callback_result()). --spec(members_changed/3 :: (args(), members(), members()) -> callback_result()). --spec(handle_msg/3 :: (args(), pid(), any()) -> callback_result()). --spec(terminate/2 :: (args(), term()) -> any()). - --endif. diff --git a/include/rabbit.hrl b/include/rabbit.hrl deleted file mode 100644 index 9f483c30..00000000 --- a/include/rabbit.hrl +++ /dev/null @@ -1,101 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --record(user, {username, - is_admin, - auth_backend, %% Module this user came from - impl %% Scratch space for that module - }). - --record(internal_user, {username, password_hash, is_admin}). --record(permission, {configure, write, read}). --record(user_vhost, {username, virtual_host}). --record(user_permission, {user_vhost, permission}). - --record(vhost, {virtual_host, dummy}). - --record(connection, {protocol, user, timeout_sec, frame_max, vhost, - client_properties, capabilities}). - --record(content, - {class_id, - properties, %% either 'none', or a decoded record/tuple - properties_bin, %% either 'none', or an encoded properties binary - %% Note: at most one of properties and properties_bin can be - %% 'none' at once. - protocol, %% The protocol under which properties_bin was encoded - payload_fragments_rev %% list of binaries, in reverse order (!) - }). - --record(resource, {virtual_host, kind, name}). - --record(exchange, {name, type, durable, auto_delete, internal, arguments}). - --record(amqqueue, {name, durable, auto_delete, exclusive_owner = none, - arguments, pid}). - -%% mnesia doesn't like unary records, so we add a dummy 'value' field --record(route, {binding, value = const}). --record(reverse_route, {reverse_binding, value = const}). - --record(binding, {source, key, destination, args = []}). --record(reverse_binding, {destination, key, source, args = []}). - --record(topic_trie_edge, {trie_edge, node_id}). --record(topic_trie_binding, {trie_binding, value = const}). - --record(trie_edge, {exchange_name, node_id, word}). --record(trie_binding, {exchange_name, node_id, destination}). - --record(listener, {node, protocol, host, ip_address, port}). - --record(basic_message, {exchange_name, routing_keys = [], content, id, - is_persistent}). - --record(ssl_socket, {tcp, ssl}). --record(delivery, {mandatory, immediate, txn, sender, message, - msg_seq_no}). --record(amqp_error, {name, explanation = "", method = none}). - --record(event, {type, props, timestamp}). - --record(message_properties, {expiry, needs_confirming = false}). - -%%---------------------------------------------------------------------------- - --define(COPYRIGHT_MESSAGE, "Copyright (C) 2007-2011 VMware, Inc."). --define(INFORMATION_MESSAGE, "Licensed under the MPL. See http://www.rabbitmq.com/"). --define(PROTOCOL_VERSION, "AMQP 0-9-1 / 0-9 / 0-8"). --define(ERTS_MINIMUM, "5.6.3"). - --define(MAX_WAIT, 16#ffffffff). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(STATS_INTERVAL, 5000). - --define(ROUTING_HEADERS, [<<"CC">>, <<"BCC">>]). --define(DELETED_HEADER, <<"BCC">>). - --ifdef(debug). --define(LOGDEBUG0(F), rabbit_log:debug(F)). --define(LOGDEBUG(F,A), rabbit_log:debug(F,A)). --define(LOGMESSAGE(D,C,M,Co), rabbit_log:message(D,C,M,Co)). --else. --define(LOGDEBUG0(F), ok). --define(LOGDEBUG(F,A), ok). --define(LOGMESSAGE(D,C,M,Co), ok). --endif. diff --git a/include/rabbit_auth_backend_spec.hrl b/include/rabbit_auth_backend_spec.hrl deleted file mode 100644 index e26d44ea..00000000 --- a/include/rabbit_auth_backend_spec.hrl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). - --spec(check_user_login/2 :: (rabbit_types:username(), [term()]) -> - {'ok', rabbit_types:user()} | - {'refused', string(), [any()]} | - {'error', any()}). --spec(check_vhost_access/3 :: (rabbit_types:user(), rabbit_types:vhost(), - rabbit_access_control:vhost_permission_atom()) -> - boolean() | {'error', any()}). --spec(check_resource_access/3 :: (rabbit_types:user(), - rabbit_types:r(atom()), - rabbit_access_control:permission_atom()) -> - boolean() | {'error', any()}). --endif. diff --git a/include/rabbit_auth_mechanism_spec.hrl b/include/rabbit_auth_mechanism_spec.hrl deleted file mode 100644 index 614a3eed..00000000 --- a/include/rabbit_auth_mechanism_spec.hrl +++ /dev/null @@ -1,28 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(should_offer/1 :: (rabbit_net:socket()) -> boolean()). --spec(init/1 :: (rabbit_net:socket()) -> any()). --spec(handle_response/2 :: (binary(), any()) -> - {'ok', rabbit_types:user()} | - {'challenge', binary(), any()} | - {'protocol_error', string(), [any()]} | - {'refused', string(), [any()]}). - --endif. diff --git a/include/rabbit_backing_queue_spec.hrl b/include/rabbit_backing_queue_spec.hrl deleted file mode 100644 index b2bf6bbb..00000000 --- a/include/rabbit_backing_queue_spec.hrl +++ /dev/null @@ -1,70 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --type(fetch_result(Ack) :: - ('empty' | - %% Message, IsDelivered, AckTag, Remaining_Len - {rabbit_types:basic_message(), boolean(), Ack, non_neg_integer()})). --type(is_durable() :: boolean()). --type(attempt_recovery() :: boolean()). --type(purged_msg_count() :: non_neg_integer()). --type(confirm_required() :: boolean()). --type(message_properties_transformer() :: - fun ((rabbit_types:message_properties()) - -> rabbit_types:message_properties())). --type(async_callback() :: fun ((fun ((state()) -> state())) -> 'ok')). --type(sync_callback() :: fun ((fun ((state()) -> state())) -> 'ok' | 'error')). - --spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(init/5 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery(), - async_callback(), sync_callback()) -> state()). --spec(terminate/1 :: (state()) -> state()). --spec(delete_and_terminate/1 :: (state()) -> state()). --spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). --spec(publish/3 :: (rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) -> state()). --spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) - -> {ack(), state()}; - (false, rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) - -> {undefined, state()}). --spec(drain_confirmed/1 :: (state()) -> {[rabbit_guid:guid()], state()}). --spec(dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> state()). --spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; - (false, state()) -> {fetch_result(undefined), state()}). --spec(ack/2 :: ([ack()], state()) -> state()). --spec(tx_publish/4 :: (rabbit_types:txn(), rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) -> state()). --spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). --spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). --spec(tx_commit/4 :: - (rabbit_types:txn(), fun (() -> any()), - message_properties_transformer(), state()) -> {[ack()], state()}). --spec(requeue/3 :: ([ack()], message_properties_transformer(), state()) - -> state()). --spec(len/1 :: (state()) -> non_neg_integer()). --spec(is_empty/1 :: (state()) -> boolean()). --spec(set_ram_duration_target/2 :: - (('undefined' | 'infinity' | number()), state()) -> state()). --spec(ram_duration/1 :: (state()) -> {number(), state()}). --spec(needs_idle_timeout/1 :: (state()) -> boolean()). --spec(idle_timeout/1 :: (state()) -> state()). --spec(handle_pre_hibernate/1 :: (state()) -> state()). --spec(status/1 :: (state()) -> [{atom(), any()}]). diff --git a/include/rabbit_exchange_type_spec.hrl b/include/rabbit_exchange_type_spec.hrl deleted file mode 100644 index 45c475d8..00000000 --- a/include/rabbit_exchange_type_spec.hrl +++ /dev/null @@ -1,36 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(route/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> rabbit_router:match_result()). --spec(validate/1 :: (rabbit_types:exchange()) -> 'ok'). --spec(create/2 :: (boolean(), rabbit_types:exchange()) -> 'ok'). --spec(recover/2 :: (rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(delete/3 :: (boolean(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(add_binding/3 :: (boolean(), rabbit_types:exchange(), - rabbit_types:binding()) -> 'ok'). --spec(remove_bindings/3 :: (boolean(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). - --endif. diff --git a/include/rabbit_msg_store.hrl b/include/rabbit_msg_store.hrl deleted file mode 100644 index e9150a97..00000000 --- a/include/rabbit_msg_store.hrl +++ /dev/null @@ -1,25 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit.hrl"). - --ifdef(use_specs). - --type(msg() :: any()). - --endif. - --record(msg_location, {msg_id, ref_count, file, offset, total_size}). diff --git a/include/rabbit_msg_store_index.hrl b/include/rabbit_msg_store_index.hrl deleted file mode 100644 index 2ae5b000..00000000 --- a/include/rabbit_msg_store_index.hrl +++ /dev/null @@ -1,45 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit_msg_store.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(dir() :: any()). --type(index_state() :: any()). --type(keyvalue() :: any()). --type(fieldpos() :: non_neg_integer()). --type(fieldvalue() :: any()). - --spec(new/1 :: (dir()) -> index_state()). --spec(recover/1 :: (dir()) -> rabbit_types:ok_or_error2(index_state(), any())). --spec(lookup/2 :: - (rabbit_types:msg_id(), index_state()) -> ('not_found' | keyvalue())). --spec(insert/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update_fields/3 :: (rabbit_types:msg_id(), ({fieldpos(), fieldvalue()} | - [{fieldpos(), fieldvalue()}]), - index_state()) -> 'ok'). --spec(delete/2 :: (rabbit_types:msg_id(), index_state()) -> 'ok'). --spec(delete_object/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(delete_by_file/2 :: (fieldvalue(), index_state()) -> 'ok'). --spec(terminate/1 :: (index_state()) -> any()). - --endif. - -%%---------------------------------------------------------------------------- diff --git a/packaging/RPMS/Fedora/Makefile b/packaging/RPMS/Fedora/Makefile deleted file mode 100644 index c67d8fd6..00000000 --- a/packaging/RPMS/Fedora/Makefile +++ /dev/null @@ -1,49 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -TOP_DIR=$(shell pwd) -#Under debian we do not want to check build dependencies, since that -#only checks build-dependencies using rpms, not debs -DEFINES=--define '_topdir $(TOP_DIR)' --define '_tmppath $(TOP_DIR)/tmp' --define '_sysconfdir /etc' --define '_localstatedir /var' - -ifndef RPM_OS -RPM_OS=fedora -endif - -ifeq "$(RPM_OS)" "suse" -REQUIRES=/sbin/chkconfig /sbin/service -OS_DEFINES=--define '_initrddir /etc/init.d' --define 'dist .suse' -else -REQUIRES=chkconfig initscripts -OS_DEFINES=--define '_initrddir /etc/rc.d/init.d' -endif - -rpms: clean server - -prepare: - mkdir -p BUILD SOURCES SPECS SRPMS RPMS tmp - cp $(TARBALL_DIR)/$(TARBALL) SOURCES - cp rabbitmq-server.spec SPECS - sed -i 's|%%VERSION%%|$(VERSION)|;s|%%REQUIRES%%|$(REQUIRES)|' \ - SPECS/rabbitmq-server.spec - - cp ${COMMON_DIR}/* SOURCES/ - sed -i \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=/var/lock/subsys/$$NAME|' \ - SOURCES/rabbitmq-server.init -ifeq "$(RPM_OS)" "fedora" -# Fedora says that only vital services should have Default-Start - sed -i -e '/^# Default-Start:/d;/^# Default-Stop:/d' \ - SOURCES/rabbitmq-server.init -endif - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - SOURCES/rabbitmq-script-wrapper - cp rabbitmq-server.logrotate SOURCES/rabbitmq-server.logrotate - -server: prepare - rpmbuild -ba --nodeps SPECS/rabbitmq-server.spec $(DEFINES) $(OS_DEFINES) - -clean: - rm -rf SOURCES SPECS RPMS SRPMS BUILD tmp diff --git a/packaging/RPMS/Fedora/rabbitmq-server.logrotate b/packaging/RPMS/Fedora/rabbitmq-server.logrotate deleted file mode 100644 index 6b657614..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /sbin/service rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec deleted file mode 100644 index ae9b2059..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ /dev/null @@ -1,196 +0,0 @@ -%define debug_package %{nil} - -Name: rabbitmq-server -Version: %%VERSION%% -Release: 1%{?dist} -License: MPLv1.1 -Group: Development/Libraries -Source: http://www.rabbitmq.com/releases/rabbitmq-server/v%{version}/%{name}-%{version}.tar.gz -Source1: rabbitmq-server.init -Source2: rabbitmq-script-wrapper -Source3: rabbitmq-server.logrotate -Source4: rabbitmq-server.ocf -URL: http://www.rabbitmq.com/ -BuildArch: noarch -BuildRequires: erlang >= R12B-3, python-simplejson, xmlto, libxslt -Requires: erlang >= R12B-3, logrotate -BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-%{_arch}-root -Summary: The RabbitMQ server -Requires(post): %%REQUIRES%% -Requires(pre): %%REQUIRES%% - -%description -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -# We want to install into /usr/lib, even on 64-bit platforms -%define _rabbit_libdir %{_exec_prefix}/lib/rabbitmq -%define _rabbit_erllibdir %{_rabbit_libdir}/lib/rabbitmq_server-%{version} -%define _rabbit_wrapper %{_builddir}/`basename %{S:2}` -%define _rabbit_server_ocf %{_builddir}/`basename %{S:4}` -%define _plugins_state_dir %{_localstatedir}/lib/rabbitmq/plugins - -%define _maindir %{buildroot}%{_rabbit_erllibdir} - -%prep -%setup -q - -%build -cp %{S:2} %{_rabbit_wrapper} -cp %{S:4} %{_rabbit_server_ocf} -make %{?_smp_mflags} - -%install -rm -rf %{buildroot} - -make install TARGET_DIR=%{_maindir} \ - SBIN_DIR=%{buildroot}%{_rabbit_libdir}/bin \ - MAN_DIR=%{buildroot}%{_mandir} - -mkdir -p %{buildroot}%{_localstatedir}/lib/rabbitmq/mnesia -mkdir -p %{buildroot}%{_localstatedir}/log/rabbitmq - -#Copy all necessary lib files etc. -install -p -D -m 0755 %{S:1} %{buildroot}%{_initrddir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmqctl -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_server_ocf} %{buildroot}%{_exec_prefix}/lib/ocf/resource.d/rabbitmq/rabbitmq-server - -install -p -D -m 0644 %{S:3} %{buildroot}%{_sysconfdir}/logrotate.d/rabbitmq-server - -mkdir -p %{buildroot}%{_sysconfdir}/rabbitmq - -rm %{_maindir}/LICENSE %{_maindir}/LICENSE-MPL-RabbitMQ %{_maindir}/INSTALL - -#Build the list of files -echo '%defattr(-,root,root, -)' >%{_builddir}/%{name}.files -find %{buildroot} -path %{buildroot}%{_sysconfdir} -prune -o '!' -type d -printf "/%%P\n" >>%{_builddir}/%{name}.files - -%pre - -if [ $1 -gt 1 ]; then - # Upgrade - stop previous instance of rabbitmq-server init.d script - /sbin/service rabbitmq-server stop -fi - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - groupadd -r rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - useradd -r -g rabbitmq -d %{_localstatedir}/lib/rabbitmq rabbitmq \ - -c "RabbitMQ messaging server" -fi - -%post -/sbin/chkconfig --add %{name} -if [ -f %{_sysconfdir}/rabbitmq/rabbitmq.conf ] && [ ! -f %{_sysconfdir}/rabbitmq/rabbitmq-env.conf ]; then - mv %{_sysconfdir}/rabbitmq/rabbitmq.conf %{_sysconfdir}/rabbitmq/rabbitmq-env.conf -fi - -%preun -if [ $1 = 0 ]; then - #Complete uninstall - /sbin/service rabbitmq-server stop - /sbin/chkconfig --del rabbitmq-server - - # We do not remove /var/log and /var/lib directories - # Leave rabbitmq user and group -fi - -# Clean out plugin activation state, both on uninstall and upgrade -rm -rf %{_plugins_state_dir} -for ext in rel script boot ; do - rm -f %{_rabbit_erllibdir}/ebin/rabbit.$ext -done - -%files -f ../%{name}.files -%defattr(-,root,root,-) -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/lib/rabbitmq -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/log/rabbitmq -%dir %{_sysconfdir}/rabbitmq -%{_initrddir}/rabbitmq-server -%config(noreplace) %{_sysconfdir}/logrotate.d/rabbitmq-server -%doc LICENSE LICENSE-MPL-RabbitMQ - -%clean -rm -rf %{buildroot} - -%changelog -* Thu Feb 3 2011 simon@rabbitmq.com 2.3.1-1 -- New Upstream Release - -* Tue Feb 1 2011 simon@rabbitmq.com 2.3.0-1 -- New Upstream Release - -* Mon Nov 29 2010 rob@rabbitmq.com 2.2.0-1 -- New Upstream Release - -* Tue Oct 19 2010 vlad@rabbitmq.com 2.1.1-1 -- New Upstream Release - -* Tue Sep 14 2010 marek@rabbitmq.com 2.1.0-1 -- New Upstream Release - -* Mon Aug 23 2010 mikeb@rabbitmq.com 2.0.0-1 -- New Upstream Release - -* Wed Jul 14 2010 Emile Joubert 1.8.1-1 -- New Upstream Release - -* Tue Jun 15 2010 Matthew Sackman 1.8.0-1 -- New Upstream Release - -* Mon Feb 15 2010 Matthew Sackman 1.7.2-1 -- New Upstream Release - -* Fri Jan 22 2010 Matthew Sackman 1.7.1-1 -- New Upstream Release - -* Mon Oct 5 2009 David Wragg 1.7.0-1 -- New upstream release - -* Wed Jun 17 2009 Matthias Radestock 1.6.0-1 -- New upstream release - -* Tue May 19 2009 Matthias Radestock 1.5.5-1 -- Maintenance release for the 1.5.x series - -* Mon Apr 6 2009 Matthias Radestock 1.5.4-1 -- Maintenance release for the 1.5.x series - -* Tue Feb 24 2009 Tony Garnock-Jones 1.5.3-1 -- Maintenance release for the 1.5.x series - -* Mon Feb 23 2009 Tony Garnock-Jones 1.5.2-1 -- Maintenance release for the 1.5.x series - -* Mon Jan 19 2009 Ben Hood <0x6e6562@gmail.com> 1.5.1-1 -- Maintenance release for the 1.5.x series - -* Wed Dec 17 2008 Matthias Radestock 1.5.0-1 -- New upstream release - -* Thu Jul 24 2008 Tony Garnock-Jones 1.4.0-1 -- New upstream release - -* Mon Mar 3 2008 Adrien Pierard 1.3.0-1 -- New upstream release - -* Wed Sep 26 2007 Simon MacMullen 1.2.0-1 -- New upstream release - -* Wed Aug 29 2007 Simon MacMullen 1.1.1-1 -- New upstream release - -* Mon Jul 30 2007 Simon MacMullen 1.1.0-1.alpha -- New upstream release - -* Tue Jun 12 2007 Hubert Plociniczak 1.0.0-1.20070607 -- Building from source tarball, added starting script, stopping - -* Mon May 21 2007 Hubert Plociniczak 1.0.0-1.alpha -- Initial build of server library of RabbitMQ package diff --git a/packaging/common/rabbitmq-script-wrapper b/packaging/common/rabbitmq-script-wrapper deleted file mode 100644 index 23d2a06c..00000000 --- a/packaging/common/rabbitmq-script-wrapper +++ /dev/null @@ -1,42 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Escape spaces and quotes, because shell is revolting. -for arg in "$@" ; do - # Escape quotes in parameters, so that they're passed through cleanly. - arg=$(sed -e 's/"/\\"/g' <<-END - $arg - END - ) - CMDLINE="${CMDLINE} \"${arg}\"" -done - -cd /var/lib/rabbitmq - -SCRIPT=`basename $0` - -if [ `id -u` = 0 ] ; then - @SU_RABBITMQ_SH_C@ "/usr/lib/rabbitmq/bin/${SCRIPT} ${CMDLINE}" -elif [ `id -u` = `id -u rabbitmq` ] ; then - /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -else - /usr/lib/rabbitmq/bin/${SCRIPT} - echo - echo "Only root or rabbitmq should run ${SCRIPT}" - echo - exit 1 -fi diff --git a/packaging/common/rabbitmq-server.init b/packaging/common/rabbitmq-server.init deleted file mode 100644 index f3bdc3d2..00000000 --- a/packaging/common/rabbitmq-server.init +++ /dev/null @@ -1,153 +0,0 @@ -#!/bin/sh -# -# rabbitmq-server RabbitMQ broker -# -# chkconfig: - 80 05 -# description: Enable AMQP service provided by RabbitMQ -# - -### BEGIN INIT INFO -# Provides: rabbitmq-server -# Required-Start: $remote_fs $network -# Required-Stop: $remote_fs $network -# Default-Start: 3 4 5 -# Default-Stop: 0 1 2 6 -# Description: RabbitMQ broker -# Short-Description: Enable AMQP service provided by RabbitMQ broker -### END INIT INFO - -PATH=/sbin:/usr/sbin:/bin:/usr/bin -NAME=rabbitmq-server -DAEMON=/usr/sbin/${NAME} -CONTROL=/usr/sbin/rabbitmqctl -DESC=rabbitmq-server -USER=rabbitmq -ROTATE_SUFFIX= -INIT_LOG_DIR=/var/log/rabbitmq - -LOCK_FILE= # This is filled in when building packages - -test -x $DAEMON || exit 0 - -RETVAL=0 -set -e - -start_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - echo RabbitMQ is currently running - else - RETVAL=0 - set +e - setsid sh -c "$DAEMON > ${INIT_LOG_DIR}/startup_log \ - 2> ${INIT_LOG_DIR}/startup_err" & - $CONTROL wait >/dev/null 2>&1 - RETVAL=$? - set -e - case "$RETVAL" in - 0) - echo SUCCESS - if [ -n "$LOCK_FILE" ] ; then - touch $LOCK_FILE - fi - ;; - *) - echo FAILED - check ${INIT_LOG_DIR}/startup_\{log, _err\} - RETVAL=1 - ;; - esac - fi -} - -stop_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - set +e - $CONTROL stop > ${INIT_LOG_DIR}/shutdown_log 2> ${INIT_LOG_DIR}/shutdown_err - RETVAL=$? - set -e - if [ $RETVAL = 0 ] ; then - if [ -n "$LOCK_FILE" ] ; then - rm -f $LOCK_FILE - fi - else - echo FAILED - check ${INIT_LOG_DIR}/shutdown_log, _err - fi - else - echo RabbitMQ is not running - RETVAL=0 - fi -} - -status_rabbitmq() { - set +e - if [ "$1" != "quiet" ] ; then - $CONTROL status 2>&1 - else - $CONTROL status > /dev/null 2>&1 - fi - if [ $? != 0 ] ; then - RETVAL=3 - fi - set -e -} - -rotate_logs_rabbitmq() { - set +e - $DAEMON rotate_logs ${ROTATE_SUFFIX} - if [ $? != 0 ] ; then - RETVAL=1 - fi - set -e -} - -restart_running_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - restart_rabbitmq - else - echo RabbitMQ is not runnning - RETVAL=0 - fi -} - -restart_rabbitmq() { - stop_rabbitmq - start_rabbitmq -} - -case "$1" in - start) - echo -n "Starting $DESC: " - start_rabbitmq - echo "$NAME." - ;; - stop) - echo -n "Stopping $DESC: " - stop_rabbitmq - echo "$NAME." - ;; - status) - status_rabbitmq - ;; - rotate-logs) - echo -n "Rotating log files for $DESC: " - rotate_logs_rabbitmq - ;; - force-reload|reload|restart) - echo -n "Restarting $DESC: " - restart_rabbitmq - echo "$NAME." - ;; - try-restart) - echo -n "Restarting $DESC: " - restart_running_rabbitmq - echo "$NAME." - ;; - *) - echo "Usage: $0 {start|stop|status|rotate-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 - RETVAL=1 - ;; -esac - -exit $RETVAL diff --git a/packaging/common/rabbitmq-server.ocf b/packaging/common/rabbitmq-server.ocf deleted file mode 100755 index 94999d0e..00000000 --- a/packaging/common/rabbitmq-server.ocf +++ /dev/null @@ -1,341 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -## -## OCF Resource Agent compliant rabbitmq-server resource script. -## - -## OCF instance parameters -## OCF_RESKEY_server -## OCF_RESKEY_ctl -## OCF_RESKEY_nodename -## OCF_RESKEY_ip -## OCF_RESKEY_port -## OCF_RESKEY_config_file -## OCF_RESKEY_log_base -## OCF_RESKEY_mnesia_base -## OCF_RESKEY_server_start_args - -####################################################################### -# Initialization: - -: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/heartbeat} -. ${OCF_FUNCTIONS_DIR}/.ocf-shellfuncs - -####################################################################### - -OCF_RESKEY_server_default="/usr/sbin/rabbitmq-server" -OCF_RESKEY_ctl_default="/usr/sbin/rabbitmqctl" -OCF_RESKEY_nodename_default="rabbit@localhost" -OCF_RESKEY_log_base_default="/var/log/rabbitmq" -: ${OCF_RESKEY_server=${OCF_RESKEY_server_default}} -: ${OCF_RESKEY_ctl=${OCF_RESKEY_ctl_default}} -: ${OCF_RESKEY_nodename=${OCF_RESKEY_nodename_default}} -: ${OCF_RESKEY_log_base=${OCF_RESKEY_log_base_default}} - -meta_data() { - cat < - - -1.0 - - -Resource agent for RabbitMQ-server - - -Resource agent for RabbitMQ-server - - - - -The path to the rabbitmq-server script - -Path to rabbitmq-server - - - - - -The path to the rabbitmqctl script - -Path to rabbitmqctl - - - - - -The node name for rabbitmq-server - -Node name - - - - - -The IP address for rabbitmq-server to listen on - -IP Address - - - - - -The IP Port for rabbitmq-server to listen on - -IP Port - - - - - -Location of the config file - -Config file path - - - - - -Location of the directory under which logs will be created - -Log base path - - - - - -Location of the directory under which mnesia will store data - -Mnesia base path - - - - - -Additional arguments provided to the server on startup - -Server start arguments - - - - - - - - - - - - - - -END -} - -rabbit_usage() { - cat < /dev/null 2> /dev/null - rc=$? - case "$rc" in - 0) - ocf_log debug "RabbitMQ server is running normally" - return $OCF_SUCCESS - ;; - 2) - ocf_log debug "RabbitMQ server is not running" - return $OCF_NOT_RUNNING - ;; - *) - ocf_log err "Unexpected return from rabbitmqctl $NODENAME_ARG $action: $rc" - exit $OCF_ERR_GENERIC - esac -} - -rabbit_start() { - local rc - - if rabbit_status; then - ocf_log info "Resource already running." - return $OCF_SUCCESS - fi - - export_vars - - setsid sh -c "$RABBITMQ_SERVER > ${RABBITMQ_LOG_BASE}/startup_log 2> ${RABBITMQ_LOG_BASE}/startup_err" & - - # Wait for the server to come up. - # Let the CRM/LRM time us out if required - rabbit_wait - rc=$? - if [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server start failed: $rc" - exit $OCF_ERR_GENERIC - fi - - return $OCF_SUCCESS -} - -rabbit_stop() { - local rc - - if ! rabbit_status; then - ocf_log info "Resource not running." - return $OCF_SUCCESS - fi - - $RABBITMQ_CTL stop - rc=$? - - if [ "$rc" != 0 ]; then - ocf_log err "rabbitmq-server stop command failed: $RABBITMQ_CTL stop, $rc" - return $rc - fi - - # Spin waiting for the server to shut down. - # Let the CRM/LRM time us out if required - stop_wait=1 - while [ $stop_wait = 1 ]; do - rabbit_status - rc=$? - if [ "$rc" = $OCF_NOT_RUNNING ]; then - stop_wait=0 - break - elif [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server stop failed: $rc" - exit $OCF_ERR_GENERIC - fi - sleep 1 - done - - return $OCF_SUCCESS -} - -rabbit_monitor() { - rabbit_status - return $? -} - -case $__OCF_ACTION in - meta-data) - meta_data - exit $OCF_SUCCESS - ;; - usage|help) - rabbit_usage - exit $OCF_SUCCESS - ;; -esac - -if ocf_is_probe; then - rabbit_validate_partial -else - rabbit_validate_full -fi - -case $__OCF_ACTION in - start) - rabbit_start - ;; - stop) - rabbit_stop - ;; - status|monitor) - rabbit_monitor - ;; - validate-all) - exit $OCF_SUCCESS - ;; - *) - rabbit_usage - exit $OCF_ERR_UNIMPLEMENTED - ;; -esac - -exit $? diff --git a/packaging/debs/Debian/Makefile b/packaging/debs/Debian/Makefile deleted file mode 100644 index 31979a8e..00000000 --- a/packaging/debs/Debian/Makefile +++ /dev/null @@ -1,45 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -DEBIAN_ORIG_TARBALL=$(shell echo $(TARBALL) | sed -e 's:\(.*\)-\(.*\)\(\.tar\.gz\):\1_\2\.orig\3:g') -UNPACKED_DIR=rabbitmq-server-$(VERSION) -PACKAGENAME=rabbitmq-server -SIGNING_KEY_ID=056E8E56 - -ifneq "$(UNOFFICIAL_RELEASE)" "" - SIGNING=-us -uc -else - SIGNING=-k$(SIGNING_KEY_ID) -endif - -all: - @echo 'Please choose a target from the Makefile.' - -package: clean - cp $(TARBALL_DIR)/$(TARBALL) $(DEBIAN_ORIG_TARBALL) - tar -zxvf $(DEBIAN_ORIG_TARBALL) - cp -r debian $(UNPACKED_DIR) - cp $(COMMON_DIR)/* $(UNPACKED_DIR)/debian/ -# Debian and descendants differ from most other distros in that -# runlevel 2 should start network services. - sed -i \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=|' \ - -e 's|^\(# Default-Start:\).*$$|\1 2 3 4 5|' \ - -e 's|^\(# Default-Stop:\).*$$|\1 0 1 6|' \ - $(UNPACKED_DIR)/debian/rabbitmq-server.init - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - $(UNPACKED_DIR)/debian/rabbitmq-script-wrapper - chmod a+x $(UNPACKED_DIR)/debian/rules - UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) - cd $(UNPACKED_DIR); GNUPGHOME=$(GNUPG_PATH)/.gnupg dpkg-buildpackage -rfakeroot $(SIGNING) - rm -rf $(UNPACKED_DIR) - -clean: - rm -rf $(UNPACKED_DIR) - rm -f $(PACKAGENAME)_*.tar.gz - rm -f $(PACKAGENAME)_*.diff.gz - rm -f $(PACKAGENAME)_*.dsc - rm -f $(PACKAGENAME)_*_*.changes - rm -f $(PACKAGENAME)_*_*.deb diff --git a/packaging/debs/Debian/check-changelog.sh b/packaging/debs/Debian/check-changelog.sh deleted file mode 100755 index ff25e648..00000000 --- a/packaging/debs/Debian/check-changelog.sh +++ /dev/null @@ -1,29 +0,0 @@ -#!/bin/sh - -PACKAGE_NAME=$1 -cd $2 - -CHANGELOG_VERSION=$(dpkg-parsechangelog | sed -n 's/^Version: \(.*\)-[^-]*$/\1/p') - -if [ "${CHANGELOG_VERSION}" != "${VERSION}" ]; then - if [ -n "${UNOFFICIAL_RELEASE}" ]; then - echo "${PACKAGE_NAME} (${VERSION}-1) unstable; urgency=low" > debian/changelog.tmp - echo >> debian/changelog.tmp - echo " * Unofficial release" >> debian/changelog.tmp - echo >> debian/changelog.tmp - echo " -- Nobody $(date -R)" >> debian/changelog.tmp - echo >> debian/changelog.tmp - cat debian/changelog >> debian/changelog.tmp - mv -f debian/changelog.tmp debian/changelog - - exit 0 - else - echo - echo There is no entry in debian/changelog for version ${VERSION}! - echo Please create a changelog entry, or set the variable - echo UNOFFICIAL_RELEASE to automatically create one. - echo - - exit 1 - fi -fi diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog deleted file mode 100644 index 12165dc0..00000000 --- a/packaging/debs/Debian/debian/changelog +++ /dev/null @@ -1,156 +0,0 @@ -rabbitmq-server (2.3.1-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Thu, 03 Feb 2011 12:43:56 +0000 - -rabbitmq-server (2.3.0-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Tue, 01 Feb 2011 12:52:16 +0000 - -rabbitmq-server (2.2.0-1) lucid; urgency=low - - * New Upstream Release - - -- Rob Harrop Mon, 29 Nov 2010 12:24:48 +0000 - -rabbitmq-server (2.1.1-1) lucid; urgency=low - - * New Upstream Release - - -- Vlad Alexandru Ionescu Tue, 19 Oct 2010 17:20:10 +0100 - -rabbitmq-server (2.1.0-1) lucid; urgency=low - - * New Upstream Release - - -- Marek Majkowski Tue, 14 Sep 2010 14:20:17 +0100 - -rabbitmq-server (2.0.0-1) karmic; urgency=low - - * New Upstream Release - - -- Michael Bridgen Mon, 23 Aug 2010 14:55:39 +0100 - -rabbitmq-server (1.8.1-1) lucid; urgency=low - - * New Upstream Release - - -- Emile Joubert Wed, 14 Jul 2010 15:05:24 +0100 - -rabbitmq-server (1.8.0-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Tue, 15 Jun 2010 12:48:48 +0100 - -rabbitmq-server (1.7.2-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Mon, 15 Feb 2010 15:54:47 +0000 - -rabbitmq-server (1.7.1-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Fri, 22 Jan 2010 14:14:29 +0000 - -rabbitmq-server (1.7.0-1) intrepid; urgency=low - - * New Upstream Release - - -- David Wragg Mon, 05 Oct 2009 13:44:41 +0100 - -rabbitmq-server (1.6.0-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 16 Jun 2009 15:02:58 +0100 - -rabbitmq-server (1.5.5-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 19 May 2009 09:57:54 +0100 - -rabbitmq-server (1.5.4-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Mon, 06 Apr 2009 09:19:32 +0100 - -rabbitmq-server (1.5.3-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Tue, 24 Feb 2009 18:23:33 +0000 - -rabbitmq-server (1.5.2-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Mon, 23 Feb 2009 16:03:38 +0000 - -rabbitmq-server (1.5.1-1) hardy; urgency=low - - * New Upstream Release - - -- Simon MacMullen Mon, 19 Jan 2009 15:46:13 +0000 - -rabbitmq-server (1.5.0-1) testing; urgency=low - - * New Upstream Release - - -- Matthias Radestock Wed, 17 Dec 2008 18:23:47 +0000 - -rabbitmq-server (1.4.0-1) testing; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Thu, 24 Jul 2008 13:21:48 +0100 - -rabbitmq-server (1.3.0-1) testing; urgency=low - - * New Upstream Release - - -- Adrien Pierard Mon, 03 Mar 2008 15:34:38 +0000 - -rabbitmq-server (1.2.0-2) testing; urgency=low - - * Fixed rabbitmqctl wrapper script - - -- Simon MacMullen Fri, 05 Oct 2007 11:55:00 +0100 - -rabbitmq-server (1.2.0-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 26 Sep 2007 11:49:26 +0100 - -rabbitmq-server (1.1.1-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 29 Aug 2007 12:03:15 +0100 - -rabbitmq-server (1.1.0-alpha-2) testing; urgency=low - - * Fixed erlang-nox dependency - - -- Simon MacMullen Thu, 02 Aug 2007 11:27:13 +0100 - -rabbitmq-server (1.1.0-alpha-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Fri, 20 Jul 2007 18:17:33 +0100 - -rabbitmq-server (1.0.0-alpha-1) unstable; urgency=low - - * Initial release - - -- Tony Garnock-Jones Wed, 31 Jan 2007 19:06:33 +0000 - diff --git a/packaging/debs/Debian/debian/compat b/packaging/debs/Debian/debian/compat deleted file mode 100644 index 7ed6ff82..00000000 --- a/packaging/debs/Debian/debian/compat +++ /dev/null @@ -1 +0,0 @@ -5 diff --git a/packaging/debs/Debian/debian/control b/packaging/debs/Debian/debian/control deleted file mode 100644 index 02da0cc6..00000000 --- a/packaging/debs/Debian/debian/control +++ /dev/null @@ -1,18 +0,0 @@ -Source: rabbitmq-server -Section: net -Priority: extra -Maintainer: RabbitMQ Team -Build-Depends: cdbs, debhelper (>= 5), erlang-dev, python-simplejson, xmlto, xsltproc -Standards-Version: 3.8.0 - -Package: rabbitmq-server -Architecture: all -# erlang-inets is not a strict dependency, but it's needed to allow -# the installation of plugins that use mochiweb. Ideally it would be a -# "Recommends" instead, but gdebi does not install those. -Depends: erlang-base (>= 1:12.b.3) | erlang-base-hipe (>= 1:12.b.3), erlang-ssl | erlang-nox (<< 1:13.b-dfsg1-1), erlang-os-mon | erlang-nox (<< 1:13.b-dfsg1-1), erlang-mnesia | erlang-nox (<< 1:13.b-dfsg1-1), erlang-inets | erlang-nox (<< 1:13.b-dfsg1-1), adduser, logrotate, ${misc:Depends} -Description: An AMQP server written in Erlang - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. -Homepage: http://www.rabbitmq.com/ diff --git a/packaging/debs/Debian/debian/copyright b/packaging/debs/Debian/debian/copyright deleted file mode 100755 index 7206bb9b..00000000 --- a/packaging/debs/Debian/debian/copyright +++ /dev/null @@ -1,502 +0,0 @@ -This package was debianized by Tony Garnock-Jones on -Wed, 3 Jan 2007 15:43:44 +0000. - -It was downloaded from http://www.rabbitmq.com/ - -The files codegen/amqp-rabbitmq-0.8.json and -codegen/amqp-rabbitmq-0.9.1.json are covered by the following terms: - - "Copyright (C) 2008-2011 VMware, Inc. - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this file (the Software), to deal in the - Software without restriction, including without limitation the - rights to use, copy, modify, merge, publish, distribute, - sublicense, and/or sell copies of the Software, and to permit - persons to whom the Software is furnished to do so, subject to - the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - OTHER DEALINGS IN THE SOFTWARE." - -The rest of this package is licensed under the Mozilla Public License 1.1 -Authors and Copyright are as described below: - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved. - - - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] - - - - - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. - -The Debian packaging is (C) 2007-2011, VMware, Inc. and is licensed -under the MPL 1.1, see above. diff --git a/packaging/debs/Debian/debian/dirs b/packaging/debs/Debian/debian/dirs deleted file mode 100644 index 625b7d41..00000000 --- a/packaging/debs/Debian/debian/dirs +++ /dev/null @@ -1,9 +0,0 @@ -usr/lib/rabbitmq/bin -usr/lib/erlang/lib -usr/sbin -usr/share/man -var/lib/rabbitmq/mnesia -var/log/rabbitmq -etc/logrotate.d -etc/rabbitmq - diff --git a/packaging/debs/Debian/debian/postinst b/packaging/debs/Debian/debian/postinst deleted file mode 100644 index b11340ef..00000000 --- a/packaging/debs/Debian/debian/postinst +++ /dev/null @@ -1,60 +0,0 @@ -#!/bin/sh -# postinst script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `configure' -# * `abort-upgrade' -# * `abort-remove' `in-favour' -# -# * `abort-remove' -# * `abort-deconfigure' `in-favour' -# `removing' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - addgroup --system rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - adduser --system --ingroup rabbitmq --home /var/lib/rabbitmq \ - --no-create-home --gecos "RabbitMQ messaging server" \ - --disabled-login rabbitmq -fi - -chown -R rabbitmq:rabbitmq /var/lib/rabbitmq -chown -R rabbitmq:rabbitmq /var/log/rabbitmq - -case "$1" in - configure) - if [ -f /etc/rabbitmq/rabbitmq.conf ] && \ - [ ! -f /etc/rabbitmq/rabbitmq-env.conf ]; then - mv /etc/rabbitmq/rabbitmq.conf /etc/rabbitmq/rabbitmq-env.conf - fi - ;; - - abort-upgrade|abort-remove|abort-deconfigure) - ;; - - *) - echo "postinst called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/postrm.in b/packaging/debs/Debian/debian/postrm.in deleted file mode 100644 index c4aeeebe..00000000 --- a/packaging/debs/Debian/debian/postrm.in +++ /dev/null @@ -1,73 +0,0 @@ -#!/bin/sh -# postrm script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `remove' -# * `purge' -# * `upgrade' -# * `failed-upgrade' -# * `abort-install' -# * `abort-install' -# * `abort-upgrade' -# * `disappear' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - -remove_plugin_traces() { - # Remove traces of plugins - rm -rf /var/lib/rabbitmq/plugins-scratch -} - -case "$1" in - purge) - rm -f /etc/default/rabbitmq - if [ -d /var/lib/rabbitmq ]; then - rm -r /var/lib/rabbitmq - fi - if [ -d /var/log/rabbitmq ]; then - rm -r /var/log/rabbitmq - fi - if [ -d /var/run/rabbitmq ]; then - rm -r /var/run/rabbitmq - fi - if [ -d /etc/rabbitmq ]; then - rm -r /etc/rabbitmq - fi - remove_plugin_traces - if getent passwd rabbitmq >/dev/null; then - # Stop epmd if run by the rabbitmq user - pkill -u rabbitmq epmd || : - - deluser rabbitmq - fi - if getent group rabbitmq >/dev/null; then - delgroup rabbitmq - fi - ;; - - remove|upgrade) - remove_plugin_traces - ;; - - failed-upgrade|abort-install|abort-upgrade|disappear) - ;; - - *) - echo "postrm called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/rabbitmq-server.logrotate b/packaging/debs/Debian/debian/rabbitmq-server.logrotate deleted file mode 100644 index c786df77..00000000 --- a/packaging/debs/Debian/debian/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /etc/init.d/rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/debs/Debian/debian/rules b/packaging/debs/Debian/debian/rules deleted file mode 100644 index a785b292..00000000 --- a/packaging/debs/Debian/debian/rules +++ /dev/null @@ -1,21 +0,0 @@ -#!/usr/bin/make -f - -include /usr/share/cdbs/1/rules/debhelper.mk -include /usr/share/cdbs/1/class/makefile.mk - -RABBIT_LIB=$(DEB_DESTDIR)usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)/ -RABBIT_BIN=$(DEB_DESTDIR)usr/lib/rabbitmq/bin/ - -DEB_MAKE_INSTALL_TARGET := install TARGET_DIR=$(RABBIT_LIB) SBIN_DIR=$(RABBIT_BIN) MAN_DIR=$(DEB_DESTDIR)usr/share/man/ -DEB_MAKE_CLEAN_TARGET:= distclean - -DOCDIR=$(DEB_DESTDIR)usr/share/doc/rabbitmq-server/ - -install/rabbitmq-server:: - mkdir -p $(DOCDIR) - rm $(RABBIT_LIB)LICENSE* $(RABBIT_LIB)INSTALL* - for script in rabbitmqctl rabbitmq-server; do \ - install -p -D -m 0755 debian/rabbitmq-script-wrapper $(DEB_DESTDIR)usr/sbin/$$script; \ - done - sed -e 's|@RABBIT_LIB@|/usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)|g' debian/postrm - install -p -D -m 0755 debian/rabbitmq-server.ocf $(DEB_DESTDIR)usr/lib/ocf/resource.d/rabbitmq/rabbitmq-server diff --git a/packaging/debs/Debian/debian/watch b/packaging/debs/Debian/debian/watch deleted file mode 100644 index b41aff9a..00000000 --- a/packaging/debs/Debian/debian/watch +++ /dev/null @@ -1,4 +0,0 @@ -version=3 - -http://www.rabbitmq.com/releases/rabbitmq-server/v(.*)/rabbitmq-server-(\d.*)\.tar\.gz \ - debian uupdate diff --git a/packaging/debs/apt-repository/Makefile b/packaging/debs/apt-repository/Makefile deleted file mode 100644 index ce4347bc..00000000 --- a/packaging/debs/apt-repository/Makefile +++ /dev/null @@ -1,28 +0,0 @@ -SIGNING_USER_EMAIL=info@rabbitmq.com - -ifeq "$(UNOFFICIAL_RELEASE)" "" -HOME_ARG=HOME=$(GNUPG_PATH) -endif - -all: debian_apt_repository - -clean: - rm -rf debian - -CAN_HAS_REPREPRO=$(shell [ -f /usr/bin/reprepro ] && echo true) -ifeq ($(CAN_HAS_REPREPRO), true) -debian_apt_repository: clean - mkdir -p debian/conf - cp -a distributions debian/conf -ifeq "$(UNOFFICIAL_RELEASE)" "" - echo SignWith: $(SIGNING_USER_EMAIL) >> debian/conf/distributions -endif - for FILE in ../Debian/*.changes ; do \ - $(HOME_ARG) reprepro --ignore=wrongdistribution \ - -Vb debian include kitten $${FILE} ; \ - done - reprepro -Vb debian createsymlinks -else -debian_apt_repository: - @echo Not building APT repository as reprepro could not be found -endif diff --git a/packaging/debs/apt-repository/README b/packaging/debs/apt-repository/README deleted file mode 100644 index 514a37f3..00000000 --- a/packaging/debs/apt-repository/README +++ /dev/null @@ -1,17 +0,0 @@ -APT repository for RabbitMQ - -Previously we've attempted to run a repository in the same way that -Debian would: have repository management software installed on the -server, and upload new packages to the repository as and when they're -ready. - -This turned out to be both fiddly and annoying to do (and more -particularly to automate) so since our repository is always going to be -small it's easier just to create the entire repository as part of the -build process, just like a package. It can then be moved into place as a -single unit. The make target "debian_apt_repository" (invoked by "dist") -will create it, and it can get moved onto the server with the rest of -the packages. - -Read "README-real-repository" for information on how we used to do -this. diff --git a/packaging/debs/apt-repository/README-real-repository b/packaging/debs/apt-repository/README-real-repository deleted file mode 100644 index b1526227..00000000 --- a/packaging/debs/apt-repository/README-real-repository +++ /dev/null @@ -1,130 +0,0 @@ -APT Repository for RabbitMQ in Debian -===================================== - -First, a note on what we're trying to do. We want a single "testing" -repository. When RabbitMQ is more stable we will also want a -"stable" repository. It is very important to understand that these refer -to the state of the rabbit code, *NOT* which Debian distribution they go -with. At the moment our dependencies are very simple so our packages can -be used with any current Debian version (etch, lenny, sid) as well as -with Ubuntu. So although we have a "testing" distribution, this is not -codenamed "lenny". Instead it's currently codenamed "kitten" since -that's a baby rabbit. - -Secondly, a note on software. We need a tool to manage the repository, -and a tool to perform uploads to the repository. Debian being Debian -there are quite a few of each. We will use "rerepro" to manage the -repository since it's modern, maintained, and fairly simple. We will use -"dupload" to perform the uploads since it gives us the ability to run -arbitrary commands after the upload, which means we don't need to run a -cron job on the web server to process uploads. - -Creating a repository -===================== - -Much of this was cribbed from: -http://www.debian-administration.org/articles/286 - -The repository is fundamentally just some files in a folder, served over -HTTP (or FTP etc). So let's make it "debian" in the root of -www.rabbitmq.com. - -This means the repository will be at http://www.rabbitmq.com/debian/ and -can be added to a sources.list as: - -deb http://www.rabbitmq.com/debian/ testing main -deb-src http://www.rabbitmq.com/debian/ testing main - -Inside this folder we need a "conf" folder, and in -that we need a "distributions" configuration file - see the file in this -folder. Note that: - -* We list all architectures so that people can install rabbitmq-server - on to anything. -* We don't list the "all" architecture even though we use it; it's - implied. -* We only have a "main" component, we could have non-free and contrib - here if it was relevant. -* We list the email address associated with the key we want to use to - sign the repository. Yes, even after signing packages we still want to - sign the repository. - -We're now ready to go. Assuming the path to our repository is /path, -(and hence configuration is in /path/conf) we can upload a file to the -repository (creating it in the process) by doing something like this on -the repository host: - -$ reprepro --ignore=wrongdistribution -Vb /path include kitten \ - rabbitmq-server_1.0.0-alpha-1_i386.changes - -Note that we upload to the distribution "kitten" rather than "testing". -We also pass --ignore=wrongdistribution since the current packages are -built to go in "unstable" (this will be changed obviously). - -Note also that the .changes file claims to be for i386 even though the -package is for architecture "all". This is a bug in debhelper. - -Finally, if you've just created a repository, you want to run: - -$ reprepro -Vb /path createsymlinks - -since this will create "kitten" -> "testing" symlinks. You only need to -do this once. - -Removing packages -================= - -Fairly simple: - -$ reprepro --ignore=wrongdistribution -Vb /path remove kitten \ - rabbitmq-server - -Subsequent updates and "dupload" -================================ - -You can run the "reprepro" command above again to update the versions of -software in the repository. Since we probably don't want to have to log -into the machine in question to do this, we can use "dupload". This is a -tool which uploads Debian packages. The supplied file "dupload.conf" can -be renamed to ~/.dupload.conf. If you then run: - -$ dupload -to rabbit --nomail . - -in the folder with the .changes file, dupload will: - -* create an incoming folder in your home directory on the repository -machine -* upload everything there -* run reprepro to move the packages into the repository -* "rm -rf" the uploads folder - -This is a bit cheesy but should be enough for our purposes. The -dupload.conf uses scp and ssh so you need a public-key login (or tpye -your password lots). - -There's still an open question as to whether dupload is really needed -for our case. - -Keys and signing -================ - -We currently sign the package as we build it; but we also need to sign -the repository. The key is currently on my machine (mrforgetful) and has -ID 056E8E56. We should put it on CDs though. - -reprepro will automatically sign the repository if we have the right -SignWith line in the configuration, AND the secret key is installed on -the repository server. This is obviously not ideal; not sure what the -solution is right now. - -You can export the public key with: - -$ gpg --export --armor 056E8E56 > rabbit.pub - -(Open question: do we want to get our key on subkeys.pgp.net?) - -We can then add this key to the website and tell our users to import the -key into apt with: - -# apt-key add rabbit.pub - diff --git a/packaging/debs/apt-repository/distributions b/packaging/debs/apt-repository/distributions deleted file mode 100644 index 183eb034..00000000 --- a/packaging/debs/apt-repository/distributions +++ /dev/null @@ -1,7 +0,0 @@ -Origin: RabbitMQ -Label: RabbitMQ Repository for Debian / Ubuntu etc -Suite: testing -Codename: kitten -Architectures: arm hppa ia64 mips mipsel s390 sparc i386 amd64 powerpc source -Components: main -Description: RabbitMQ Repository for Debian / Ubuntu etc diff --git a/packaging/debs/apt-repository/dupload.conf b/packaging/debs/apt-repository/dupload.conf deleted file mode 100644 index 9ceed760..00000000 --- a/packaging/debs/apt-repository/dupload.conf +++ /dev/null @@ -1,16 +0,0 @@ -package config; - -$rabbit_user = "simon"; -$rabbit_host = "mrforgetful.lshift.net"; -$rabbit_repo_path = "/srv/debian"; -$rabbit_reprepro_extra_args = "--ignore=wrongdistribution"; - -$cfg{'rabbit'} = { - fqdn => "$rabbit_host", - login => "$rabbit_user", - method => "scp", - incoming => "incoming", -}; - -$preupload{'deb'} = "ssh ${rabbit_host} mkdir incoming"; -$postupload{'deb'} = "ssh ${rabbit_host} \"cd incoming && reprepro ${$rabbit_reprepro_extra_args} -Vb ${rabbit_repo_path} include kitten *.changes && cd .. && rm -r incoming\""; diff --git a/packaging/generic-unix/Makefile b/packaging/generic-unix/Makefile deleted file mode 100644 index c4e01f4a..00000000 --- a/packaging/generic-unix/Makefile +++ /dev/null @@ -1,23 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_TARBALL=rabbitmq-server-generic-unix-$(VERSION) - -dist: - tar -zxvf ../../dist/$(SOURCE_DIR).tar.gz - - $(MAKE) -C $(SOURCE_DIR) \ - TARGET_DIR=`pwd`/$(TARGET_DIR) \ - SBIN_DIR=`pwd`/$(TARGET_DIR)/sbin \ - MAN_DIR=`pwd`/$(TARGET_DIR)/share/man \ - install - - tar -zcf $(TARGET_TARBALL).tar.gz $(TARGET_DIR) - rm -rf $(SOURCE_DIR) $(TARGET_DIR) - -clean: clean_partial - rm -f rabbitmq-server-generic-unix-*.tar.gz - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile deleted file mode 100644 index 47da02dc..00000000 --- a/packaging/macports/Makefile +++ /dev/null @@ -1,59 +0,0 @@ -TARBALL_SRC_DIR=../../dist -TARBALL_BIN_DIR=../../packaging/generic-unix/ -TARBALL_SRC=$(wildcard $(TARBALL_SRC_DIR)/rabbitmq-server-[0-9.]*.tar.gz) -TARBALL_BIN=$(wildcard $(TARBALL_BIN_DIR)/rabbitmq-server-generic-unix-[0-9.]*.tar.gz) -COMMON_DIR=../common -VERSION=$(shell echo $(TARBALL_SRC) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -# The URL at which things really get deployed -REAL_WEB_URL=http://www.rabbitmq.com/ - -# The user@host for an OSX machine with macports installed, which is -# used to generate the macports index files. That step will be -# skipped if this variable is not set. If you do set it, you might -# also want to set SSH_OPTS, which allows adding ssh options, e.g. to -# specify a key that will get into the OSX machine without a -# passphrase. -MACPORTS_USERHOST= - -MACPORTS_DIR=macports -DEST=$(MACPORTS_DIR)/net/rabbitmq-server - -all: macports - -dirs: - mkdir -p $(DEST)/files - -$(DEST)/Portfile: Portfile.in - ./make-checksums.sh $(TARBALL_SRC) $(TARBALL_BIN) > checksums.sed - sed -e "s|@VERSION@|$(VERSION)|g;s|@BASE_URL@|$(REAL_WEB_URL)|g" \ - -f checksums.sed <$^ >$@ - rm checksums.sed - -# The purpose of the intricate substitution below is to set up similar -# environment vars to the ones that su will on Linux. On OS X, we -# have to use the -m option to su in order to be able to set the shell -# (which for the rabbitmq user would otherwise be /dev/null). But the -# -m option means that *all* environment vars get preserved. Erlang -# needs vars such as HOME to be set. So we have to set them -# explicitly. -macports: dirs $(DEST)/Portfile - cp $(COMMON_DIR)/rabbitmq-script-wrapper $(DEST)/files - sed -i -e 's|@SU_RABBITMQ_SH_C@|SHELL=/bin/sh HOME=/var/lib/rabbitmq USER=rabbitmq LOGNAME=rabbitmq PATH="$$(eval `PATH=MACPORTS_PREFIX/bin /usr/libexec/path_helper -s`; echo $$PATH)" su -m rabbitmq -c|' \ - $(DEST)/files/rabbitmq-script-wrapper - cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files - if [ -n "$(MACPORTS_USERHOST)" ] ; then \ - tar cf - -C $(MACPORTS_DIR) . | ssh $(SSH_OPTS) $(MACPORTS_USERHOST) ' \ - d="/tmp/mkportindex.$$$$" ; \ - mkdir $$d \ - && cd $$d \ - && tar xf - \ - && /opt/local/bin/portindex -a -o . >/dev/null \ - && tar cf - . \ - && cd \ - && rm -rf $$d' \ - | tar xf - -C $(MACPORTS_DIR) ; \ - fi - -clean: - rm -rf $(MACPORTS_DIR) checksums.sed diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in deleted file mode 100644 index 809f518b..00000000 --- a/packaging/macports/Portfile.in +++ /dev/null @@ -1,118 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version @VERSION@ -categories net -maintainers paperplanes.de:meyer rabbitmq.com:tonyg openmaintainer -platforms darwin -supported_archs noarch - -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage @BASE_URL@ -master_sites @BASE_URL@releases/rabbitmq-server/v${version}/ - -distfiles ${name}-${version}${extract.suffix} \ - ${name}-generic-unix-${version}${extract.suffix} - -checksums \ - ${name}-${version}${extract.suffix} \ - md5 @md5-src@ \ - sha1 @sha1-src@ \ - rmd160 @rmd160-src@ \ - ${name}-generic-unix-${version}${extract.suffix} \ - md5 @md5-bin@ \ - sha1 @sha1-bin@ \ - rmd160 @rmd160-bin@ - -depends_lib port:erlang -depends_build port:libxslt - -platform darwin 8 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -platform darwin 9 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -# no need for simplejson on Snow Leopard or higher - - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin -set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin -set mansrc ${workpath}/rabbitmq_server-${version}/share/man -set mandest ${destroot}${prefix}/share/man - -use_configure no - -use_parallel_build yes - -destroot.target install_bin - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq):${prefix}\\1:g" \ - ${realsbin}/rabbitmq-env - foreach var {CONFIG_FILE LOG_BASE MNESIA_BASE} { - reinplace -E "s:^($var)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - } - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-server - - reinplace -E "s:MACPORTS_PREFIX/bin:${prefix}/bin:" \ - ${wrappersbin}/rabbitmq-server - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-server - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-server ${wrappersbin}/rabbitmqctl - - xinstall -m 644 -W ${mansrc}/man1 rabbitmq-server.1.gz rabbitmqctl.1.gz \ - ${mandest}/man1/ - xinstall -m 644 -W ${mansrc}/man5 rabbitmq-env.conf.5.gz ${mandest}/man5/ -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/make-checksums.sh b/packaging/macports/make-checksums.sh deleted file mode 100755 index 11424dfc..00000000 --- a/packaging/macports/make-checksums.sh +++ /dev/null @@ -1,14 +0,0 @@ -#!/bin/bash -# NB: this script requires bash -tarball_src=$1 -tarball_bin=$2 -for type in src bin -do - tarball_var=tarball_${type} - tarball=${!tarball_var} - for algo in md5 sha1 rmd160 - do - checksum=$(openssl $algo ${tarball} | awk '{print $NF}') - echo "s|@$algo-$type@|$checksum|g" - done -done diff --git a/packaging/macports/make-port-diff.sh b/packaging/macports/make-port-diff.sh deleted file mode 100755 index 3eb1b9f5..00000000 --- a/packaging/macports/make-port-diff.sh +++ /dev/null @@ -1,27 +0,0 @@ -#!/bin/bash - -# This script grabs the latest rabbitmq-server bits from the main -# macports subversion repo, and from the rabbitmq.com macports repo, -# and produces a diff from the former to the latter for submission -# through the macports trac. - -set -e - -dir=/tmp/$(basename $0).$$ -mkdir -p $dir/macports $dir/rabbitmq - -# Get the files from the macports subversion repo -cd $dir/macports -svn checkout http://svn.macports.org/repository/macports/trunk/dports/net/rabbitmq-server/ 2>&1 >/dev/null - -# Clear out the svn $id tag -sed -i -e 's|^# \$.*$|# $Id$|' rabbitmq-server/Portfile - -# Get the files from the rabbitmq.com macports repo -cd ../rabbitmq -curl -s http://www.rabbitmq.com/releases/macports/net/rabbitmq-server.tgz | tar xzf - - -cd .. -diff -Naur --exclude=.svn macports rabbitmq -cd / -rm -rf $dir diff --git a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff deleted file mode 100644 index 45b49496..00000000 --- a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff +++ /dev/null @@ -1,10 +0,0 @@ ---- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 -+++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 -@@ -22,6 +22,7 @@ - ; - --pid=none - -+UserNamerabbitmq - Debug - Disabled - OnDemand diff --git a/packaging/windows-exe/Makefile b/packaging/windows-exe/Makefile deleted file mode 100644 index 59803f9c..00000000 --- a/packaging/windows-exe/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -VERSION=0.0.0 -ZIP=../windows/rabbitmq-server-windows-$(VERSION) - -dist: rabbitmq-$(VERSION).nsi rabbitmq_server-$(VERSION) - makensis rabbitmq-$(VERSION).nsi - -rabbitmq-$(VERSION).nsi: rabbitmq_nsi.in - sed \ - -e 's|%%VERSION%%|$(VERSION)|' \ - $< > $@ - -rabbitmq_server-$(VERSION): - unzip $(ZIP) - -clean: - rm -rf rabbitmq-*.nsi rabbitmq_server-* rabbitmq-server-*.exe diff --git a/packaging/windows-exe/rabbitmq.ico b/packaging/windows-exe/rabbitmq.ico deleted file mode 100644 index 5e169a79..00000000 Binary files a/packaging/windows-exe/rabbitmq.ico and /dev/null differ diff --git a/packaging/windows-exe/rabbitmq_nsi.in b/packaging/windows-exe/rabbitmq_nsi.in deleted file mode 100644 index 1ed4064e..00000000 --- a/packaging/windows-exe/rabbitmq_nsi.in +++ /dev/null @@ -1,237 +0,0 @@ -; Use the "Modern" UI -!include MUI2.nsh -!include LogicLib.nsh -!include WinMessages.nsh -!include FileFunc.nsh -!include WordFunc.nsh - -!define env_hklm 'HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"' -!define uninstall "Software\Microsoft\Windows\CurrentVersion\Uninstall\RabbitMQ" - -;-------------------------------- - -; The name of the installer -Name "RabbitMQ Server %%VERSION%%" - -; The file to write -OutFile "rabbitmq-server-%%VERSION%%.exe" - -; Icons -!define MUI_ICON "rabbitmq.ico" - -; The default installation directory -InstallDir "$PROGRAMFILES\RabbitMQ Server" - -; Registry key to check for directory (so if you install again, it will -; overwrite the old one automatically) -InstallDirRegKey HKLM "Software\VMware, Inc.\RabbitMQ Server" "Install_Dir" - -; Request application privileges for Windows Vista -RequestExecutionLevel admin - -SetCompressor /solid lzma - -VIProductVersion "%%VERSION%%.0" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductVersion" "%%VERSION%%" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductName" "RabbitMQ Server" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "Comments" "" -VIAddVersionKey /LANG=${LANG_ENGLISH} "CompanyName" "VMware, Inc" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalTrademarks" "" ; TODO ? -VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalCopyright" "Copyright (c) 2007-2011 VMware, Inc. All rights reserved." -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileDescription" "RabbitMQ Server" -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileVersion" "%%VERSION%%" - -;-------------------------------- - -; Pages - - -; !insertmacro MUI_PAGE_LICENSE "..\..\LICENSE-MPL-RabbitMQ" - !insertmacro MUI_PAGE_COMPONENTS - !insertmacro MUI_PAGE_DIRECTORY - !insertmacro MUI_PAGE_INSTFILES - !insertmacro MUI_PAGE_FINISH - - !insertmacro MUI_UNPAGE_CONFIRM - !insertmacro MUI_UNPAGE_INSTFILES - !define MUI_FINISHPAGE_TEXT "RabbitMQ Server %%VERSION%% has been uninstalled from your computer.$\n$\nPlease note that the log and database directories located at $APPDATA\RabbitMQ have not been removed. You can remove them manually if desired." - !insertmacro MUI_UNPAGE_FINISH - -;-------------------------------- -;Languages - - !insertmacro MUI_LANGUAGE "English" - -;-------------------------------- - -; The stuff to install -Section "RabbitMQ Server (required)" Rabbit - - SectionIn RO - - ; Set output path to the installation directory. - SetOutPath $INSTDIR - - ; Put files there - File /r "rabbitmq_server-%%VERSION%%" - File "rabbitmq.ico" - - ; Write the installation path into the registry - WriteRegStr HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" "Install_Dir" "$INSTDIR" - - ; Write the uninstall keys for Windows - WriteRegStr HKLM ${uninstall} "DisplayName" "RabbitMQ Server" - WriteRegStr HKLM ${uninstall} "UninstallString" "$INSTDIR\uninstall.exe" - WriteRegStr HKLM ${uninstall} "DisplayIcon" "$INSTDIR\uninstall.exe,0" - WriteRegStr HKLM ${uninstall} "Publisher" "VMware, Inc." - WriteRegStr HKLM ${uninstall} "DisplayVersion" "%%VERSION%%" - WriteRegDWORD HKLM ${uninstall} "NoModify" 1 - WriteRegDWORD HKLM ${uninstall} "NoRepair" 1 - - ${GetSize} "$INSTDIR" "/S=0K" $0 $1 $2 - IntFmt $0 "0x%08X" $0 - WriteRegDWORD HKLM "${uninstall}" "EstimatedSize" "$0" - - WriteUninstaller "uninstall.exe" -SectionEnd - -;-------------------------------- - -Section "RabbitMQ Service" RabbitService - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" install' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" start' - CopyFiles "$WINDIR\.erlang.cookie" "$PROFILE\.erlang.cookie" -SectionEnd - -;-------------------------------- - -Section "Start Menu" RabbitStartMenu - ; In case the service is not installed, or the service installation fails, - ; make sure these exist or Explorer will get confused. - CreateDirectory "$APPDATA\RabbitMQ\log" - CreateDirectory "$APPDATA\RabbitMQ\db" - - CreateDirectory "$SMPROGRAMS\RabbitMQ Server" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Uninstall.lnk" "$INSTDIR\uninstall.exe" "" "$INSTDIR\uninstall.exe" 0 - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Plugins Directory.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\plugins" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Log Directory.lnk" "$APPDATA\RabbitMQ\log" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Database Directory.lnk" "$APPDATA\RabbitMQ\db" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\(Re)Install Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "install" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Remove Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "remove" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Start Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "start" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Stop Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "stop" "$INSTDIR\rabbitmq.ico" - - SetOutPath "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Command Prompt (sbin dir).lnk" "$WINDIR\system32\cmd.exe" "" "$WINDIR\system32\cmd.exe" - SetOutPath $INSTDIR -SectionEnd - -;-------------------------------- - -; Section descriptions - -LangString DESC_Rabbit ${LANG_ENGLISH} "The RabbitMQ Server." -LangString DESC_RabbitService ${LANG_ENGLISH} "Set up RabbitMQ as a Windows Service." -LangString DESC_RabbitStartMenu ${LANG_ENGLISH} "Add some useful links to the start menu." - -!insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN - !insertmacro MUI_DESCRIPTION_TEXT ${Rabbit} $(DESC_Rabbit) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitService} $(DESC_RabbitService) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitStartMenu} $(DESC_RabbitStartMenu) -!insertmacro MUI_FUNCTION_DESCRIPTION_END - -;-------------------------------- - -; Uninstaller - -Section "Uninstall" - - ; Remove registry keys - DeleteRegKey HKLM ${uninstall} - DeleteRegKey HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" - - ; TODO these will fail if the service is not installed - do we care? - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" stop' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" remove' - - ; Remove files and uninstaller - RMDir /r "$INSTDIR\rabbitmq_server-%%VERSION%%" - Delete "$INSTDIR\rabbitmq.ico" - Delete "$INSTDIR\uninstall.exe" - - ; Remove start menu items - RMDir /r "$SMPROGRAMS\RabbitMQ Server" - - DeleteRegValue ${env_hklm} ERLANG_HOME - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - -SectionEnd - -;-------------------------------- - -; Functions - -Function .onInit - Call findErlang - - ReadRegStr $0 HKLM ${uninstall} "UninstallString" - ${If} $0 != "" - MessageBox MB_OKCANCEL|MB_ICONEXCLAMATION "RabbitMQ is already installed. $\n$\nClick 'OK' to remove the previous version or 'Cancel' to cancel this installation." IDCANCEL norun - - ;Run the uninstaller - ClearErrors - ExecWait $INSTDIR\uninstall.exe - - norun: - Abort - ${EndIf} -FunctionEnd - -Function findErlang - - StrCpy $0 0 - StrCpy $2 "not-found" - ${Do} - EnumRegKey $1 HKLM Software\Ericsson\Erlang $0 - ${If} $1 = "" - ${Break} - ${EndIf} - ${If} $1 <> "ErlSrv" - StrCpy $2 $1 - ${EndIf} - - IntOp $0 $0 + 1 - ${Loop} - - ${If} $2 = "not-found" - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Erlang could not be detected.$\nYou must install Erlang before installing RabbitMQ. Would you like the installer to open a browser window to the Erlang download site?" IDNO abort - ExecShell "open" "http://www.erlang.org/download.html" - abort: - Abort - ${Else} - ${VersionCompare} $2 "5.6.3" $0 - ${VersionCompare} $2 "5.8.1" $1 - - ${If} $0 = 2 - MessageBox MB_OK|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is too old. Please install a more recent version." - Abort - ${ElseIf} $1 = 2 - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is comparatively old.$\nFor best results, please install a newer version.$\nDo you wish to continue?" IDYES no_abort - Abort - no_abort: - ${EndIf} - - ReadRegStr $0 HKLM "Software\Ericsson\Erlang\$2" "" - - ; See http://nsis.sourceforge.net/Setting_Environment_Variables - WriteRegExpandStr ${env_hklm} ERLANG_HOME $0 - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - - ; On Windows XP changing the permanent environment does not change *our* - ; environment, so do that as well. - System::Call 'Kernel32::SetEnvironmentVariableA(t, t) i("ERLANG_HOME", "$0").r0' - ${EndIf} - -FunctionEnd \ No newline at end of file diff --git a/packaging/windows/Makefile b/packaging/windows/Makefile deleted file mode 100644 index dacfa620..00000000 --- a/packaging/windows/Makefile +++ /dev/null @@ -1,35 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_ZIP=rabbitmq-server-windows-$(VERSION) - -dist: - tar -zxvf ../../dist/$(SOURCE_DIR).tar.gz - $(MAKE) -C $(SOURCE_DIR) - - mkdir $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-server.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-service.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmqctl.bat $(SOURCE_DIR)/sbin - rm -rf $(SOURCE_DIR)/scripts - rm -rf $(SOURCE_DIR)/codegen* $(SOURCE_DIR)/Makefile - rm -f $(SOURCE_DIR)/README - rm -rf $(SOURCE_DIR)/docs - - mv $(SOURCE_DIR) $(TARGET_DIR) - mkdir -p $(TARGET_DIR) - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory > $(TARGET_DIR)/plugins/README - xmlto -o . xhtml-nochunks ../../docs/rabbitmq-service.xml - elinks -dump -no-references -no-numbering rabbitmq-service.html \ - > $(TARGET_DIR)/readme-service.txt - todos $(TARGET_DIR)/readme-service.txt - zip -r $(TARGET_ZIP).zip $(TARGET_DIR) - rm -rf $(TARGET_DIR) rabbitmq-service.html - -clean: clean_partial - rm -f rabbitmq-server-windows-*.zip - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/scripts/rabbitmq-env b/scripts/rabbitmq-env deleted file mode 100755 index 3e173949..00000000 --- a/scripts/rabbitmq-env +++ /dev/null @@ -1,44 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Determine where this script is really located -SCRIPT_PATH="$0" -while [ -h "$SCRIPT_PATH" ] ; do - FULL_PATH=`readlink -f $SCRIPT_PATH 2>/dev/null` - if [ "$?" != "0" ]; then - REL_PATH=`readlink $SCRIPT_PATH` - if expr "$REL_PATH" : '/.*' > /dev/null; then - SCRIPT_PATH="$REL_PATH" - else - SCRIPT_PATH="`dirname "$SCRIPT_PATH"`/$REL_PATH" - fi - else - SCRIPT_PATH=$FULL_PATH - fi -done - -SCRIPT_DIR=`dirname $SCRIPT_PATH` -RABBITMQ_HOME="${SCRIPT_DIR}/.." -[ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname` -NODENAME=rabbit@${HOSTNAME%%.*} - -# Load configuration from the rabbitmq.conf file -if [ -f /etc/rabbitmq/rabbitmq.conf ]; then - echo -n "WARNING: ignoring /etc/rabbitmq/rabbitmq.conf -- " - echo "location has moved to /etc/rabbitmq/rabbitmq-env.conf" -fi -[ -f /etc/rabbitmq/rabbitmq-env.conf ] && . /etc/rabbitmq/rabbitmq-env.conf diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server deleted file mode 100755 index 2f80eb96..00000000 --- a/scripts/rabbitmq-server +++ /dev/null @@ -1,117 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -SERVER_ERL_ARGS="+K true +A30 +P 1048576 \ --kernel inet_default_connect_options [{nodelay,true}]" -CONFIG_FILE=/etc/rabbitmq/rabbitmq -LOG_BASE=/var/log/rabbitmq -MNESIA_BASE=/var/lib/rabbitmq/mnesia -SERVER_START_ARGS= - -. `dirname $0`/rabbitmq-env - -DEFAULT_NODE_IP_ADDRESS=auto -DEFAULT_NODE_PORT=5672 -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} -[ "x" = "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} -if [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] -then - if [ "x" != "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_IP_ADDRESS=${DEFAULT_NODE_IP_ADDRESS} - fi -else - if [ "x" = "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_PORT=${DEFAULT_NODE_PORT} - fi -fi -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_SERVER_ERL_ARGS" ] && RABBITMQ_SERVER_ERL_ARGS=${SERVER_ERL_ARGS} -[ "x" = "x$RABBITMQ_CONFIG_FILE" ] && RABBITMQ_CONFIG_FILE=${CONFIG_FILE} -[ "x" = "x$RABBITMQ_LOG_BASE" ] && RABBITMQ_LOG_BASE=${LOG_BASE} -[ "x" = "x$RABBITMQ_MNESIA_BASE" ] && RABBITMQ_MNESIA_BASE=${MNESIA_BASE} -[ "x" = "x$RABBITMQ_SERVER_START_ARGS" ] && RABBITMQ_SERVER_START_ARGS=${SERVER_START_ARGS} - -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${MNESIA_DIR} -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME} - -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${PLUGINS_EXPAND_DIR} -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME}-plugins-expand - -[ "x" = "x$RABBITMQ_PLUGINS_DIR" ] && RABBITMQ_PLUGINS_DIR="${RABBITMQ_HOME}/plugins" - -## Log rotation -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS=${LOGS} -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}.log" -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS=${SASL_LOGS} -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}-sasl.log" -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=${BACKUP_EXTENSION} -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=".1" - -[ -f "${RABBITMQ_LOGS}" ] && cat "${RABBITMQ_LOGS}" >> "${RABBITMQ_LOGS}${RABBITMQ_BACKUP_EXTENSION}" -[ -f "${RABBITMQ_SASL_LOGS}" ] && cat "${RABBITMQ_SASL_LOGS}" >> "${RABBITMQ_SASL_LOGS}${RABBITMQ_BACKUP_EXTENSION}" - -RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' - -RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" -if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then - if erl \ - -pa "$RABBITMQ_EBIN_ROOT" \ - -noinput \ - -hidden \ - -s rabbit_prelaunch \ - -sname rabbitmqprelaunch$$ \ - -extra "$RABBITMQ_PLUGINS_DIR" "${RABBITMQ_PLUGINS_EXPAND_DIR}" "${RABBITMQ_NODENAME}" - then - RABBITMQ_BOOT_FILE="${RABBITMQ_PLUGINS_EXPAND_DIR}/rabbit" - RABBITMQ_EBIN_PATH="" - else - exit 1 - fi -else - RABBITMQ_BOOT_FILE=start_sasl - RABBITMQ_EBIN_PATH="-pa ${RABBITMQ_EBIN_ROOT}" -fi -RABBITMQ_CONFIG_ARG= -[ -f "${RABBITMQ_CONFIG_FILE}.config" ] && RABBITMQ_CONFIG_ARG="-config ${RABBITMQ_CONFIG_FILE}" - -RABBITMQ_LISTEN_ARG= -[ "x" != "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$RABBITMQ_NODE_IP_ADDRESS" ] && RABBITMQ_LISTEN_ARG="-rabbit tcp_listeners [{\""${RABBITMQ_NODE_IP_ADDRESS}"\","${RABBITMQ_NODE_PORT}"}]" - -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_SERVER_ERL_ARGS, contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - -exec erl \ - ${RABBITMQ_EBIN_PATH} \ - ${RABBITMQ_START_RABBIT} \ - -sname ${RABBITMQ_NODENAME} \ - -boot ${RABBITMQ_BOOT_FILE} \ - ${RABBITMQ_CONFIG_ARG} \ - +W w \ - ${RABBITMQ_SERVER_ERL_ARGS} \ - ${RABBITMQ_LISTEN_ARG} \ - -sasl errlog_type error \ - -kernel error_logger '{file,"'${RABBITMQ_LOGS}'"}' \ - -sasl sasl_error_logger '{file,"'${RABBITMQ_SASL_LOGS}'"}' \ - -os_mon start_cpu_sup true \ - -os_mon start_disksup false \ - -os_mon start_memsup false \ - -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - ${RABBITMQ_SERVER_START_ARGS} \ - "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat deleted file mode 100644 index 5e2097db..00000000 --- a/scripts/rabbitmq-server.bat +++ /dev/null @@ -1,156 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\RabbitMQ -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based of size...) is left as an exercice for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!-sasl.log - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS!!BACKUP_EXTENSION!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS!!BACKUP_EXTENSION!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --sname rabbitmqprelaunch!RANDOM! ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "!RABBITMQ_NODENAME!" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners [{\""!RABBITMQ_NODE_IP_ADDRESS!"\","!RABBITMQ_NODE_PORT!"}] - ) -) - -"!ERLANG_HOME!\bin\erl.exe" ^ -!RABBITMQ_EBIN_PATH! ^ --noinput ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --sname !RABBITMQ_NODENAME! ^ --s rabbit ^ -+W w ^ -+A30 ^ -+P 1048576 ^ --kernel inet_default_connect_options "[{nodelay, true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!LOGS:\=/!"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!SASL_LOGS:\=/!"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -endlocal -endlocal diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat deleted file mode 100644 index aa428a8c..00000000 --- a/scripts/rabbitmq-service.bat +++ /dev/null @@ -1,244 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TN0=%~n0 -set TDP0=%~dp0 -set P1=%1 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_SERVICENAME!"=="" ( - set RABBITMQ_SERVICENAME=RabbitMQ -) - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\!RABBITMQ_SERVICENAME! -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if "!ERLANG_SERVICE_MANAGER_PATH!"=="" ( - if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B - ) - for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\erlsrv.exe" ( - set ERLANG_SERVICE_MANAGER_PATH=!ERLANG_HOME!\%%i\bin - ) -) - -set CONSOLE_FLAG= -set CONSOLE_LOG_VALID= -for %%i in (new reuse) do if "%%i" == "!RABBITMQ_CONSOLE_LOG!" set CONSOLE_LOG_VALID=TRUE -if "!CONSOLE_LOG_VALID!" == "TRUE" ( - set CONSOLE_FLAG=-debugtype !RABBITMQ_CONSOLE_LOG! -) - -rem *** End of configuration *** - -if not exist "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" ( - echo. - echo ********************************************** - echo ERLANG_SERVICE_MANAGER_PATH not set correctly. - echo ********************************************** - echo. - echo "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" not found - echo Please set ERLANG_SERVICE_MANAGER_PATH to the folder containing "erlsrv.exe". - echo. - exit /B 1 -) - -rem erlang prefers forwardslash as separator in paths -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based on size...) is left as an exercise for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!-sasl.log - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS!!BACKUP_EXTENSION!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS!!BACKUP_EXTENSION!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -if "!P1!" == "install" goto INSTALL_SERVICE -for %%i in (start stop disable enable list remove) do if "%%i" == "!P1!" goto MODIFY_SERVICE - -echo. -echo ********************* -echo Service control usage -echo ********************* -echo. -echo !TN0! help - Display this help -echo !TN0! install - Install the !RABBITMQ_SERVICENAME! service -echo !TN0! remove - Remove the !RABBITMQ_SERVICENAME! service -echo. -echo The following actions can also be accomplished by using -echo Windows Services Management Console (services.msc): -echo. -echo !TN0! start - Start the !RABBITMQ_SERVICENAME! service -echo !TN0! stop - Stop the !RABBITMQ_SERVICENAME! service -echo !TN0! disable - Disable the !RABBITMQ_SERVICENAME! service -echo !TN0! enable - Enable the !RABBITMQ_SERVICENAME! service -echo. -exit /B - - -:INSTALL_SERVICE - -if not exist "!RABBITMQ_BASE!" ( - echo Creating base directory !RABBITMQ_BASE! & md "!RABBITMQ_BASE!" -) - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" list !RABBITMQ_SERVICENAME! 2>NUL 1>NUL -if errorlevel 1 ( - "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" add !RABBITMQ_SERVICENAME! -) else ( - echo !RABBITMQ_SERVICENAME! service is already present - only updating service parameters -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners "[{\"!RABBITMQ_NODE_IP_ADDRESS!\", !RABBITMQ_NODE_PORT!}]" - ) -) - -set ERLANG_SERVICE_ARGUMENTS= ^ -!RABBITMQ_EBIN_PATH! ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --s rabbit ^ -+W w ^ -+A30 ^ --kernel inet_default_connect_options "[{nodelay,true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!LOGS:\=/!"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!SASL_LOGS:\=/!"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:\=\\! -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:"=\"! - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" set !RABBITMQ_SERVICENAME! ^ --machine "!ERLANG_SERVICE_MANAGER_PATH!\erl.exe" ^ --env ERL_CRASH_DUMP="!RABBITMQ_BASE_UNIX!/erl_crash.dump" ^ --workdir "!RABBITMQ_BASE!" ^ --stopaction "rabbit:stop_and_halt()." ^ --sname !RABBITMQ_NODENAME! ^ -!CONSOLE_FLAG! ^ --args "!ERLANG_SERVICE_ARGUMENTS!" > NUL - -goto END - - -:MODIFY_SERVICE - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" !P1! !RABBITMQ_SERVICENAME! -goto END - - -:END - -endlocal -endlocal diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl deleted file mode 100755 index 9a11c3b3..00000000 --- a/scripts/rabbitmqctl +++ /dev/null @@ -1,31 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -. `dirname $0`/rabbitmq-env - -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} - -exec erl \ - -pa "${RABBITMQ_HOME}/ebin" \ - -noinput \ - -hidden \ - ${RABBITMQ_CTL_ERL_ARGS} \ - -sname rabbitmqctl$$ \ - -s rabbit_control \ - -nodename $RABBITMQ_NODENAME \ - -extra "$@" diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat deleted file mode 100644 index a74a91fd..00000000 --- a/scripts/rabbitmqctl.bat +++ /dev/null @@ -1,49 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! - -endlocal -endlocal diff --git a/src/bpqueue.erl b/src/bpqueue.erl deleted file mode 100644 index 71a34262..00000000 --- a/src/bpqueue.erl +++ /dev/null @@ -1,271 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(bpqueue). - -%% Block-prefixed queue. From the perspective of the queue interface -%% the datastructure acts like a regular queue where each value is -%% paired with the prefix. -%% -%% This is implemented as a queue of queues, which is more space and -%% time efficient, whilst supporting the normal queue interface. Each -%% inner queue has a prefix, which does not need to be unique, and it -%% is guaranteed that no two consecutive blocks have the same -%% prefix. len/1 returns the flattened length of the queue and is -%% O(1). - --export([new/0, is_empty/1, len/1, in/3, in_r/3, out/1, out_r/1, join/2, - foldl/3, foldr/3, from_list/1, to_list/1, map_fold_filter_l/4, - map_fold_filter_r/4]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([bpqueue/0]). - --type(bpqueue() :: {non_neg_integer(), queue()}). --type(prefix() :: any()). --type(value() :: any()). --type(result() :: ({'empty', bpqueue()} | - {{'value', prefix(), value()}, bpqueue()})). - --spec(new/0 :: () -> bpqueue()). --spec(is_empty/1 :: (bpqueue()) -> boolean()). --spec(len/1 :: (bpqueue()) -> non_neg_integer()). --spec(in/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(in_r/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(out/1 :: (bpqueue()) -> result()). --spec(out_r/1 :: (bpqueue()) -> result()). --spec(join/2 :: (bpqueue(), bpqueue()) -> bpqueue()). --spec(foldl/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(foldr/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(from_list/1 :: ([{prefix(), [value()]}]) -> bpqueue()). --spec(to_list/1 :: (bpqueue()) -> [{prefix(), [value()]}]). --spec(map_fold_filter_l/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). --spec(map_fold_filter_r/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> {0, queue:new()}. - -is_empty({0, _Q}) -> true; -is_empty(_BPQ) -> false. - -len({N, _Q}) -> N. - -in(Prefix, Value, {0, Q}) -> - {1, queue:in({Prefix, queue:from_list([Value])}, Q)}; -in(Prefix, Value, BPQ) -> - in1({fun queue:in/2, fun queue:out_r/1}, Prefix, Value, BPQ). - -in_r(Prefix, Value, BPQ = {0, _Q}) -> - in(Prefix, Value, BPQ); -in_r(Prefix, Value, BPQ) -> - in1({fun queue:in_r/2, fun queue:out/1}, Prefix, Value, BPQ). - -in1({In, Out}, Prefix, Value, {N, Q}) -> - {N+1, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, In(Value, InnerQ)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, queue:in(Value, queue:new())}, Q) - end}. - -in_q(Prefix, Queue, BPQ = {0, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - N -> {N, queue:in({Prefix, Queue}, Q)} - end; -in_q(Prefix, Queue, BPQ) -> - in_q1({fun queue:in/2, fun queue:out_r/1, - fun queue:join/2}, - Prefix, Queue, BPQ). - -in_q_r(Prefix, Queue, BPQ = {0, _Q}) -> - in_q(Prefix, Queue, BPQ); -in_q_r(Prefix, Queue, BPQ) -> - in_q1({fun queue:in_r/2, fun queue:out/1, - fun (T, H) -> queue:join(H, T) end}, - Prefix, Queue, BPQ). - -in_q1({In, Out, Join}, Prefix, Queue, BPQ = {N, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - M -> {N + M, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, Join(InnerQ, Queue)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, Queue}, Q) - end} - end. - -out({0, _Q} = BPQ) -> {empty, BPQ}; -out(BPQ) -> out1({fun queue:in_r/2, fun queue:out/1}, BPQ). - -out_r({0, _Q} = BPQ) -> {empty, BPQ}; -out_r(BPQ) -> out1({fun queue:in/2, fun queue:out_r/1}, BPQ). - -out1({In, Out}, {N, Q}) -> - {{value, {Prefix, InnerQ}}, Q1} = Out(Q), - {{value, Value}, InnerQ1} = Out(InnerQ), - Q2 = case queue:is_empty(InnerQ1) of - true -> Q1; - false -> In({Prefix, InnerQ1}, Q1) - end, - {{value, Prefix, Value}, {N-1, Q2}}. - -join({0, _Q}, BPQ) -> - BPQ; -join(BPQ, {0, _Q}) -> - BPQ; -join({NHead, QHead}, {NTail, QTail}) -> - {{value, {Prefix, InnerQHead}}, QHead1} = queue:out_r(QHead), - {NHead + NTail, - case queue:out(QTail) of - {{value, {Prefix, InnerQTail}}, QTail1} -> - queue:join( - queue:in({Prefix, queue:join(InnerQHead, InnerQTail)}, QHead1), - QTail1); - {{value, {_Prefix, _InnerQTail}}, _QTail1} -> - queue:join(QHead, QTail) - end}. - -foldl(_Fun, Init, {0, _Q}) -> Init; -foldl( Fun, Init, {_N, Q}) -> fold1(fun queue:out/1, Fun, Init, Q). - -foldr(_Fun, Init, {0, _Q}) -> Init; -foldr( Fun, Init, {_N, Q}) -> fold1(fun queue:out_r/1, Fun, Init, Q). - -fold1(Out, Fun, Init, Q) -> - case Out(Q) of - {empty, _Q} -> - Init; - {{value, {Prefix, InnerQ}}, Q1} -> - fold1(Out, Fun, fold1(Out, Fun, Prefix, Init, InnerQ), Q1) - end. - -fold1(Out, Fun, Prefix, Init, InnerQ) -> - case Out(InnerQ) of - {empty, _Q} -> - Init; - {{value, Value}, InnerQ1} -> - fold1(Out, Fun, Prefix, Fun(Prefix, Value, Init), InnerQ1) - end. - -from_list(List) -> - {FinalPrefix, FinalInnerQ, ListOfPQs1, Len} = - lists:foldl( - fun ({_Prefix, []}, Acc) -> - Acc; - ({Prefix, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix, queue:join(InnerQ, queue:from_list(InnerList)), - ListOfPQs, LenAcc + length(InnerList)}; - ({Prefix1, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix1, queue:from_list(InnerList), - [{Prefix, InnerQ} | ListOfPQs], LenAcc + length(InnerList)} - end, {undefined, queue:new(), [], 0}, List), - ListOfPQs2 = [{FinalPrefix, FinalInnerQ} | ListOfPQs1], - [{undefined, InnerQ1} | Rest] = All = lists:reverse(ListOfPQs2), - {Len, queue:from_list(case queue:is_empty(InnerQ1) of - true -> Rest; - false -> All - end)}. - -to_list({0, _Q}) -> []; -to_list({_N, Q}) -> [{Prefix, queue:to_list(InnerQ)} || - {Prefix, InnerQ} <- queue:to_list(Q)]. - -%% map_fold_filter_[lr](FilterFun, Fun, Init, BPQ) -> {BPQ, Init} -%% where FilterFun(Prefix) -> boolean() -%% Fun(Value, Init) -> {Prefix, Value, Init} | stop -%% -%% The filter fun allows you to skip very quickly over blocks that -%% you're not interested in. Such blocks appear in the resulting bpq -%% without modification. The Fun is then used both to map the value, -%% which also allows you to change the prefix (and thus block) of the -%% value, and also to modify the Init/Acc (just like a fold). If the -%% Fun returns 'stop' then it is not applied to any further items. -map_fold_filter_l(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_l(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out/1, fun queue:in/2, - fun in_q/3, fun join/2}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter_r(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_r(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out_r/1, fun queue:in_r/2, - fun in_q_r/3, fun (T, H) -> join(H, T) end}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter1(Funs = {Out, _In, InQ, Join}, Len, PFilter, Fun, - Init, Q, QNew) -> - case Out(Q) of - {empty, _Q} -> - {QNew, Init}; - {{value, {Prefix, InnerQ}}, Q1} -> - case PFilter(Prefix) of - true -> - {Init1, QNew1, Cont} = - map_fold_filter2(Funs, Fun, Prefix, Prefix, - Init, InnerQ, QNew, queue:new()), - case Cont of - false -> {Join(QNew1, {Len - len(QNew1), Q1}), Init1}; - true -> map_fold_filter1(Funs, Len, PFilter, Fun, - Init1, Q1, QNew1) - end; - false -> - map_fold_filter1(Funs, Len, PFilter, Fun, - Init, Q1, InQ(Prefix, InnerQ, QNew)) - end - end. - -map_fold_filter2(Funs = {Out, In, InQ, _Join}, Fun, OrigPrefix, Prefix, - Init, InnerQ, QNew, InnerQNew) -> - case Out(InnerQ) of - {empty, _Q} -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), true}; - {{value, Value}, InnerQ1} -> - case Fun(Value, Init) of - stop -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), false}; - {Prefix1, Value1, Init1} -> - {Prefix2, QNew1, InnerQNew1} = - case Prefix1 =:= Prefix of - true -> {Prefix, QNew, In(Value1, InnerQNew)}; - false -> {Prefix1, InQ(Prefix, InnerQNew, QNew), - In(Value1, queue:new())} - end, - map_fold_filter2(Funs, Fun, OrigPrefix, Prefix2, - Init1, InnerQ1, QNew1, InnerQNew1) - end - end. diff --git a/src/delegate.erl b/src/delegate.erl deleted file mode 100644 index 17046201..00000000 --- a/src/delegate.erl +++ /dev/null @@ -1,154 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate). - --behaviour(gen_server2). - --export([start_link/1, invoke_no_result/2, invoke/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: - (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). --spec(invoke_no_result/2 :: - (pid() | [pid()], fun ((pid()) -> any())) -> 'ok'). --spec(invoke/2 :: - ( pid(), fun ((pid()) -> A)) -> A; - ([pid()], fun ((pid()) -> A)) -> {[{pid(), A}], - [{pid(), term()}]}). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(Num) -> - gen_server2:start_link({local, delegate_name(Num)}, ?MODULE, [], []). - -invoke(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - Fun(Pid); -invoke(Pid, Fun) when is_pid(Pid) -> - case invoke([Pid], Fun) of - {[{Pid, Result}], []} -> - Result; - {[], [{Pid, {Class, Reason, StackTrace}}]} -> - erlang:raise(Class, Reason, StackTrace) - end; - -invoke(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - %% The use of multi_call is only safe because the timeout is - %% infinity, and thus there is no process spawned in order to do - %% the sending. Thus calls can't overtake preceding calls/casts. - {Replies, BadNodes} = - case orddict:fetch_keys(Grouped) of - [] -> {[], []}; - RemoteNodes -> gen_server2:multi_call( - RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}, infinity) - end, - BadPids = [{Pid, {exit, {nodedown, BadNode}, []}} || - BadNode <- BadNodes, - Pid <- orddict:fetch(BadNode, Grouped)], - ResultsNoNode = lists:append([safe_invoke(LocalPids, Fun) | - [Results || {_Node, Results} <- Replies]]), - lists:foldl( - fun ({ok, Pid, Result}, {Good, Bad}) -> {[{Pid, Result} | Good], Bad}; - ({error, Pid, Error}, {Good, Bad}) -> {Good, [{Pid, Error} | Bad]} - end, {[], BadPids}, ResultsNoNode). - -invoke_no_result(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - safe_invoke(Pid, Fun), %% we don't care about any error - ok; -invoke_no_result(Pid, Fun) when is_pid(Pid) -> - invoke_no_result([Pid], Fun); - -invoke_no_result(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - case orddict:fetch_keys(Grouped) of - [] -> ok; - RemoteNodes -> gen_server2:abcast(RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}) - end, - safe_invoke(LocalPids, Fun), %% must not die - ok. - -%%---------------------------------------------------------------------------- - -group_pids_by_node(Pids) -> - LocalNode = node(), - lists:foldl( - fun (Pid, {Local, Remote}) when node(Pid) =:= LocalNode -> - {[Pid | Local], Remote}; - (Pid, {Local, Remote}) -> - {Local, - orddict:update( - node(Pid), fun (List) -> [Pid | List] end, [Pid], Remote)} - end, {[], orddict:new()}, Pids). - -delegate_name(Hash) -> - list_to_atom("delegate_" ++ integer_to_list(Hash)). - -delegate(RemoteNodes) -> - case get(delegate) of - undefined -> Name = delegate_name( - erlang:phash2(self(), - delegate_sup:count(RemoteNodes))), - put(delegate, Name), - Name; - Name -> Name - end. - -safe_invoke(Pids, Fun) when is_list(Pids) -> - [safe_invoke(Pid, Fun) || Pid <- Pids]; -safe_invoke(Pid, Fun) when is_pid(Pid) -> - try - {ok, Pid, Fun(Pid)} - catch Class:Reason -> - {error, Pid, {Class, Reason, erlang:get_stacktrace()}} - end. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, node(), hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({invoke, Fun, Grouped}, _From, Node) -> - {reply, safe_invoke(orddict:fetch(Node, Grouped), Fun), Node, hibernate}. - -handle_cast({invoke, Fun, Grouped}, Node) -> - safe_invoke(orddict:fetch(Node, Grouped), Fun), - {noreply, Node, hibernate}. - -handle_info(_Info, Node) -> - {noreply, Node, hibernate}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, Node, _Extra) -> - {ok, Node}. diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl deleted file mode 100644 index fc693c7d..00000000 --- a/src/delegate_sup.erl +++ /dev/null @@ -1,59 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate_sup). - --behaviour(supervisor). - --export([start_link/1, count/1]). - --export([init/1]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (integer()) -> {'ok', pid()} | {'error', any()}). --spec(count/1 :: ([node()]) -> integer()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Count) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [Count]). - -count([]) -> - 1; -count([Node | Nodes]) -> - try - length(supervisor:which_children({?SERVER, Node})) - catch exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - count(Nodes); - exit:{R, _} when R =:= noproc; R =:= normal; R =:= shutdown; - R =:= nodedown -> - count(Nodes) - end. - -%%---------------------------------------------------------------------------- - -init([Count]) -> - {ok, {{one_for_one, 10, 10}, - [{Num, {delegate, start_link, [Num]}, - transient, 16#ffffffff, worker, [delegate]} || - Num <- lists:seq(0, Count - 1)]}}. diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl deleted file mode 100644 index b26bb988..00000000 --- a/src/file_handle_cache.erl +++ /dev/null @@ -1,1198 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(file_handle_cache). - -%% A File Handle Cache -%% -%% This extends a subset of the functionality of the Erlang file -%% module. In the below, we use "file handle" to specifically refer to -%% file handles, and "file descriptor" to refer to descriptors which -%% are not file handles, e.g. sockets. -%% -%% Some constraints -%% 1) This supports one writer, multiple readers per file. Nothing -%% else. -%% 2) Do not open the same file from different processes. Bad things -%% may happen, especially for writes. -%% 3) Writes are all appends. You cannot write to the middle of a -%% file, although you can truncate and then append if you want. -%% 4) Although there is a write buffer, there is no read buffer. Feel -%% free to use the read_ahead mode, but beware of the interaction -%% between that buffer and the write buffer. -%% -%% Some benefits -%% 1) You do not have to remember to call sync before close -%% 2) Buffering is much more flexible than with the plain file module, -%% and you can control when the buffer gets flushed out. This means -%% that you can rely on reads-after-writes working, without having to -%% call the expensive sync. -%% 3) Unnecessary calls to position and sync get optimised out. -%% 4) You can find out what your 'real' offset is, and what your -%% 'virtual' offset is (i.e. where the hdl really is, and where it -%% would be after the write buffer is written out). -%% 5) You can find out what the offset was when you last sync'd. -%% -%% There is also a server component which serves to limit the number -%% of open file descriptors. This is a hard limit: the server -%% component will ensure that clients do not have more file -%% descriptors open than it's configured to allow. -%% -%% On open, the client requests permission from the server to open the -%% required number of file handles. The server may ask the client to -%% close other file handles that it has open, or it may queue the -%% request and ask other clients to close file handles they have open -%% in order to satisfy the request. Requests are always satisfied in -%% the order they arrive, even if a latter request (for a small number -%% of file handles) can be satisfied before an earlier request (for a -%% larger number of file handles). On close, the client sends a -%% message to the server. These messages allow the server to keep -%% track of the number of open handles. The client also keeps a -%% gb_tree which is updated on every use of a file handle, mapping the -%% time at which the file handle was last used (timestamp) to the -%% handle. Thus the smallest key in this tree maps to the file handle -%% that has not been used for the longest amount of time. This -%% smallest key is included in the messages to the server. As such, -%% the server keeps track of when the least recently used file handle -%% was used *at the point of the most recent open or close* by each -%% client. -%% -%% Note that this data can go very out of date, by the client using -%% the least recently used handle. -%% -%% When the limit is exceeded (i.e. the number of open file handles is -%% at the limit and there are pending 'open' requests), the server -%% calculates the average age of the last reported least recently used -%% file handle of all the clients. It then tells all the clients to -%% close any handles not used for longer than this average, by -%% invoking the callback the client registered. The client should -%% receive this message and pass it into -%% set_maximum_since_use/1. However, it is highly possible this age -%% will be greater than the ages of all the handles the client knows -%% of because the client has used its file handles in the mean -%% time. Thus at this point the client reports to the server the -%% current timestamp at which its least recently used file handle was -%% last used. The server will check two seconds later that either it -%% is back under the limit, in which case all is well again, or if -%% not, it will calculate a new average age. Its data will be much -%% more recent now, and so it is very likely that when this is -%% communicated to the clients, the clients will close file handles. -%% (In extreme cases, where it's very likely that all clients have -%% used their open handles since they last sent in an update, which -%% would mean that the average will never cause any file handles to -%% be closed, the server can send out an average age of 0, resulting -%% in all available clients closing all their file handles.) -%% -%% Care is taken to ensure that (a) processes which are blocked -%% waiting for file descriptors to become available are not sent -%% requests to close file handles; and (b) given it is known how many -%% file handles a process has open, when the average age is forced to -%% 0, close messages are only sent to enough processes to release the -%% correct number of file handles and the list of processes is -%% randomly shuffled. This ensures we don't cause processes to -%% needlessly close file handles, and ensures that we don't always -%% make such requests of the same processes. -%% -%% The advantage of this scheme is that there is only communication -%% from the client to the server on open, close, and when in the -%% process of trying to reduce file handle usage. There is no -%% communication from the client to the server on normal file handle -%% operations. This scheme forms a feed-back loop - the server does -%% not care which file handles are closed, just that some are, and it -%% checks this repeatedly when over the limit. -%% -%% Handles which are closed as a result of the server are put into a -%% "soft-closed" state in which the handle is closed (data flushed out -%% and sync'd first) but the state is maintained. The handle will be -%% fully reopened again as soon as needed, thus users of this library -%% do not need to worry about their handles being closed by the server -%% - reopening them when necessary is handled transparently. -%% -%% The server also supports obtain and transfer. obtain/0 blocks until -%% a file descriptor is available, at which point the requesting -%% process is considered to 'own' one more descriptor. transfer/1 -%% transfers ownership of a file descriptor between processes. It is -%% non-blocking. Obtain is used to obtain permission to accept file -%% descriptors. Obtain has a lower limit, set by the ?OBTAIN_LIMIT/1 -%% macro. File handles can use the entire limit, but will be evicted -%% by obtain calls up to the point at which no more obtain calls can -%% be satisfied by the obtains limit. Thus there will always be some -%% capacity available for file handles. Processes that use obtain are -%% never asked to return them, and they are not managed in any way by -%% the server. It is simply a mechanism to ensure that processes that -%% need file descriptors such as sockets can do so in such a way that -%% the overall number of open file descriptors is managed. -%% -%% The callers of register_callback/3, obtain/0, and the argument of -%% transfer/1 are monitored, reducing the count of handles in use -%% appropriately when the processes terminate. - --behaviour(gen_server). - --export([register_callback/3]). --export([open/3, close/1, read/2, append/2, sync/1, position/2, truncate/1, - last_sync_offset/1, current_virtual_offset/1, current_raw_offset/1, - flush/1, copy/3, set_maximum_since_use/1, delete/1, clear/1]). --export([obtain/0, transfer/1, set_limit/1, get_limit/0, info_keys/0, info/0, - info/1]). --export([ulimit/0]). - --export([start_link/0, init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). --define(RESERVED_FOR_OTHERS, 100). - --define(FILE_HANDLES_LIMIT_OTHER, 1024). --define(FILE_HANDLES_CHECK_INTERVAL, 2000). - --define(OBTAIN_LIMIT(LIMIT), trunc((LIMIT * 0.9) - 2)). --define(CLIENT_ETS_TABLE, ?MODULE). - -%%---------------------------------------------------------------------------- - --record(file, - { reader_count, - has_writer - }). - --record(handle, - { hdl, - offset, - trusted_offset, - is_dirty, - write_buffer_size, - write_buffer_size_limit, - write_buffer, - at_eof, - path, - mode, - options, - is_write, - is_read, - last_used_at - }). - --record(fhc_state, - { elders, - limit, - open_count, - open_pending, - obtain_limit, - obtain_count, - obtain_pending, - clients, - timer_ref - }). - --record(cstate, - { pid, - callback, - opened, - obtained, - blocked, - pending_closes - }). - --record(pending, - { kind, - pid, - requested, - from - }). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(ref() :: any()). --type(ok_or_error() :: 'ok' | {'error', any()}). --type(val_or_error(T) :: {'ok', T} | {'error', any()}). --type(position() :: ('bof' | 'eof' | non_neg_integer() | - {('bof' |'eof'), non_neg_integer()} | - {'cur', integer()})). --type(offset() :: non_neg_integer()). - --spec(register_callback/3 :: (atom(), atom(), [any()]) -> 'ok'). --spec(open/3 :: - (string(), [any()], - [{'write_buffer', (non_neg_integer() | 'infinity' | 'unbuffered')}]) - -> val_or_error(ref())). --spec(close/1 :: (ref()) -> ok_or_error()). --spec(read/2 :: (ref(), non_neg_integer()) -> - val_or_error([char()] | binary()) | 'eof'). --spec(append/2 :: (ref(), iodata()) -> ok_or_error()). --spec(sync/1 :: (ref()) -> ok_or_error()). --spec(position/2 :: (ref(), position()) -> val_or_error(offset())). --spec(truncate/1 :: (ref()) -> ok_or_error()). --spec(last_sync_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_virtual_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_raw_offset/1 :: (ref()) -> val_or_error(offset())). --spec(flush/1 :: (ref()) -> ok_or_error()). --spec(copy/3 :: (ref(), ref(), non_neg_integer()) -> - val_or_error(non_neg_integer())). --spec(set_maximum_since_use/1 :: (non_neg_integer()) -> 'ok'). --spec(delete/1 :: (ref()) -> ok_or_error()). --spec(clear/1 :: (ref()) -> ok_or_error()). --spec(obtain/0 :: () -> 'ok'). --spec(transfer/1 :: (pid()) -> 'ok'). --spec(set_limit/1 :: (non_neg_integer()) -> 'ok'). --spec(get_limit/0 :: () -> non_neg_integer()). --spec(info_keys/0 :: () -> [atom()]). --spec(info/0 :: () -> [{atom(), any()}]). --spec(info/1 :: ([atom()]) -> [{atom(), any()}]). --spec(ulimit/0 :: () -> 'infinity' | 'unknown' | non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- --define(INFO_KEYS, [obtain_count, obtain_limit]). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], [{timeout, infinity}]). - -register_callback(M, F, A) - when is_atom(M) andalso is_atom(F) andalso is_list(A) -> - gen_server:cast(?SERVER, {register_callback, self(), {M, F, A}}). - -open(Path, Mode, Options) -> - Path1 = filename:absname(Path), - File1 = #file { reader_count = RCount, has_writer = HasWriter } = - case get({Path1, fhc_file}) of - File = #file {} -> File; - undefined -> #file { reader_count = 0, - has_writer = false } - end, - Mode1 = append_to_write(Mode), - IsWriter = is_writer(Mode1), - case IsWriter andalso HasWriter of - true -> {error, writer_exists}; - false -> {ok, Ref} = new_closed_handle(Path1, Mode1, Options), - case get_or_reopen([{Ref, new}]) of - {ok, [_Handle1]} -> - RCount1 = case is_reader(Mode1) of - true -> RCount + 1; - false -> RCount - end, - HasWriter1 = HasWriter orelse IsWriter, - put({Path1, fhc_file}, - File1 #file { reader_count = RCount1, - has_writer = HasWriter1 }), - {ok, Ref}; - Error -> - erase({Ref, fhc_handle}), - Error - end - end. - -close(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> ok; - Handle -> case hard_close(Handle) of - ok -> ok; - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -read(Ref, Count) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_read = false }]) -> - {error, not_open_for_reading}; - ([Handle = #handle { hdl = Hdl, offset = Offset }]) -> - case file:read(Hdl, Count) of - {ok, Data} = Obj -> Offset1 = Offset + iolist_size(Data), - {Obj, - [Handle #handle { offset = Offset1 }]}; - eof -> {eof, [Handle #handle { at_eof = true }]}; - Error -> {Error, [Handle]} - end - end). - -append(Ref, Data) -> - with_handles( - [Ref], - fun ([#handle { is_write = false }]) -> - {error, not_open_for_writing}; - ([Handle]) -> - case maybe_seek(eof, Handle) of - {{ok, _Offset}, #handle { hdl = Hdl, offset = Offset, - write_buffer_size_limit = 0, - at_eof = true } = Handle1} -> - Offset1 = Offset + iolist_size(Data), - {file:write(Hdl, Data), - [Handle1 #handle { is_dirty = true, offset = Offset1 }]}; - {{ok, _Offset}, #handle { write_buffer = WriteBuffer, - write_buffer_size = Size, - write_buffer_size_limit = Limit, - at_eof = true } = Handle1} -> - WriteBuffer1 = [Data | WriteBuffer], - Size1 = Size + iolist_size(Data), - Handle2 = Handle1 #handle { write_buffer = WriteBuffer1, - write_buffer_size = Size1 }, - case Limit =/= infinity andalso Size1 > Limit of - true -> {Result, Handle3} = write_buffer(Handle2), - {Result, [Handle3]}; - false -> {ok, [Handle2]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -sync(Ref) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_dirty = false, write_buffer = [] }]) -> - ok; - ([Handle = #handle { hdl = Hdl, offset = Offset, - is_dirty = true, write_buffer = [] }]) -> - case file:sync(Hdl) of - ok -> {ok, [Handle #handle { trusted_offset = Offset, - is_dirty = false }]}; - Error -> {Error, [Handle]} - end - end). - -position(Ref, NewOffset) -> - with_flushed_handles( - [Ref], - fun ([Handle]) -> {Result, Handle1} = maybe_seek(NewOffset, Handle), - {Result, [Handle1]} - end). - -truncate(Ref) -> - with_flushed_handles( - [Ref], - fun ([Handle1 = #handle { hdl = Hdl, offset = Offset, - trusted_offset = TOffset }]) -> - case file:truncate(Hdl) of - ok -> TOffset1 = lists:min([Offset, TOffset]), - {ok, [Handle1 #handle { trusted_offset = TOffset1, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end - end). - -last_sync_offset(Ref) -> - with_handles([Ref], fun ([#handle { trusted_offset = TOffset }]) -> - {ok, TOffset} - end). - -current_virtual_offset(Ref) -> - with_handles([Ref], fun ([#handle { at_eof = true, is_write = true, - offset = Offset, - write_buffer_size = Size }]) -> - {ok, Offset + Size}; - ([#handle { offset = Offset }]) -> - {ok, Offset} - end). - -current_raw_offset(Ref) -> - with_handles([Ref], fun ([Handle]) -> {ok, Handle #handle.offset} end). - -flush(Ref) -> - with_flushed_handles([Ref], fun ([Handle]) -> {ok, [Handle]} end). - -copy(Src, Dest, Count) -> - with_flushed_handles( - [Src, Dest], - fun ([SHandle = #handle { is_read = true, hdl = SHdl, offset = SOffset }, - DHandle = #handle { is_write = true, hdl = DHdl, offset = DOffset }] - ) -> - case file:copy(SHdl, DHdl, Count) of - {ok, Count1} = Result1 -> - {Result1, - [SHandle #handle { offset = SOffset + Count1 }, - DHandle #handle { offset = DOffset + Count1, - is_dirty = true }]}; - Error -> - {Error, [SHandle, DHandle]} - end; - (_Handles) -> - {error, incorrect_handle_modes} - end). - -delete(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> - ok; - Handle = #handle { path = Path } -> - case hard_close(Handle #handle { is_dirty = false, - write_buffer = [] }) of - ok -> file:delete(Path); - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -clear(Ref) -> - with_handles( - [Ref], - fun ([#handle { at_eof = true, write_buffer_size = 0, offset = 0 }]) -> - ok; - ([Handle]) -> - case maybe_seek(bof, Handle #handle { write_buffer = [], - write_buffer_size = 0 }) of - {{ok, 0}, Handle1 = #handle { hdl = Hdl }} -> - case file:truncate(Hdl) of - ok -> {ok, [Handle1 #handle {trusted_offset = 0, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -set_maximum_since_use(MaximumAge) -> - Now = now(), - case lists:foldl( - fun ({{Ref, fhc_handle}, - Handle = #handle { hdl = Hdl, last_used_at = Then }}, Rep) -> - case Hdl =/= closed andalso - timer:now_diff(Now, Then) >= MaximumAge of - true -> soft_close(Ref, Handle) orelse Rep; - false -> Rep - end; - (_KeyValuePair, Rep) -> - Rep - end, false, get()) of - false -> age_tree_change(), ok; - true -> ok - end. - -obtain() -> - gen_server:call(?SERVER, {obtain, self()}, infinity). - -transfer(Pid) -> - gen_server:cast(?SERVER, {transfer, self(), Pid}). - -set_limit(Limit) -> - gen_server:call(?SERVER, {set_limit, Limit}, infinity). - -get_limit() -> - gen_server:call(?SERVER, get_limit, infinity). - -info_keys() -> ?INFO_KEYS. - -info() -> info(?INFO_KEYS). -info(Items) -> gen_server:call(?SERVER, {info, Items}, infinity). - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -is_reader(Mode) -> lists:member(read, Mode). - -is_writer(Mode) -> lists:member(write, Mode). - -append_to_write(Mode) -> - case lists:member(append, Mode) of - true -> [write | Mode -- [append, write]]; - false -> Mode - end. - -with_handles(Refs, Fun) -> - case get_or_reopen([{Ref, reopen} || Ref <- Refs]) of - {ok, Handles} -> - case Fun(Handles) of - {Result, Handles1} when is_list(Handles1) -> - lists:zipwith(fun put_handle/2, Refs, Handles1), - Result; - Result -> - Result - end; - Error -> - Error - end. - -with_flushed_handles(Refs, Fun) -> - with_handles( - Refs, - fun (Handles) -> - case lists:foldl( - fun (Handle, {ok, HandlesAcc}) -> - {Res, Handle1} = write_buffer(Handle), - {Res, [Handle1 | HandlesAcc]}; - (Handle, {Error, HandlesAcc}) -> - {Error, [Handle | HandlesAcc]} - end, {ok, []}, Handles) of - {ok, Handles1} -> - Fun(lists:reverse(Handles1)); - {Error, Handles1} -> - {Error, lists:reverse(Handles1)} - end - end). - -get_or_reopen(RefNewOrReopens) -> - case partition_handles(RefNewOrReopens) of - {OpenHdls, []} -> - {ok, [Handle || {_Ref, Handle} <- OpenHdls]}; - {OpenHdls, ClosedHdls} -> - Oldest = oldest(get_age_tree(), fun () -> now() end), - case gen_server:call(?SERVER, {open, self(), length(ClosedHdls), - Oldest}, infinity) of - ok -> - case reopen(ClosedHdls) of - {ok, RefHdls} -> sort_handles(RefNewOrReopens, - OpenHdls, RefHdls, []); - Error -> Error - end; - close -> - [soft_close(Ref, Handle) || - {{Ref, fhc_handle}, Handle = #handle { hdl = Hdl }} <- - get(), - Hdl =/= closed], - get_or_reopen(RefNewOrReopens) - end - end. - -reopen(ClosedHdls) -> reopen(ClosedHdls, get_age_tree(), []). - -reopen([], Tree, RefHdls) -> - put_age_tree(Tree), - {ok, lists:reverse(RefHdls)}; -reopen([{Ref, NewOrReopen, Handle = #handle { hdl = closed, - path = Path, - mode = Mode, - offset = Offset, - last_used_at = undefined }} | - RefNewOrReopenHdls] = ToOpen, Tree, RefHdls) -> - case file:open(Path, case NewOrReopen of - new -> Mode; - reopen -> [read | Mode] - end) of - {ok, Hdl} -> - Now = now(), - {{ok, Offset1}, Handle1} = - maybe_seek(Offset, Handle #handle { hdl = Hdl, - offset = 0, - last_used_at = Now }), - Handle2 = Handle1 #handle { trusted_offset = Offset1 }, - put({Ref, fhc_handle}, Handle2), - reopen(RefNewOrReopenHdls, gb_trees:insert(Now, Ref, Tree), - [{Ref, Handle2} | RefHdls]); - Error -> - %% NB: none of the handles in ToOpen are in the age tree - Oldest = oldest(Tree, fun () -> undefined end), - [gen_server:cast(?SERVER, {close, self(), Oldest}) || _ <- ToOpen], - put_age_tree(Tree), - Error - end. - -partition_handles(RefNewOrReopens) -> - lists:foldr( - fun ({Ref, NewOrReopen}, {Open, Closed}) -> - case get({Ref, fhc_handle}) of - #handle { hdl = closed } = Handle -> - {Open, [{Ref, NewOrReopen, Handle} | Closed]}; - #handle {} = Handle -> - {[{Ref, Handle} | Open], Closed} - end - end, {[], []}, RefNewOrReopens). - -sort_handles([], [], [], Acc) -> - {ok, lists:reverse(Acc)}; -sort_handles([{Ref, _} | RefHdls], [{Ref, Handle} | RefHdlsA], RefHdlsB, Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]); -sort_handles([{Ref, _} | RefHdls], RefHdlsA, [{Ref, Handle} | RefHdlsB], Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]). - -put_handle(Ref, Handle = #handle { last_used_at = Then }) -> - Now = now(), - age_tree_update(Then, Now, Ref), - put({Ref, fhc_handle}, Handle #handle { last_used_at = Now }). - -with_age_tree(Fun) -> put_age_tree(Fun(get_age_tree())). - -get_age_tree() -> - case get(fhc_age_tree) of - undefined -> gb_trees:empty(); - AgeTree -> AgeTree - end. - -put_age_tree(Tree) -> put(fhc_age_tree, Tree). - -age_tree_update(Then, Now, Ref) -> - with_age_tree( - fun (Tree) -> - gb_trees:insert(Now, Ref, gb_trees:delete_any(Then, Tree)) - end). - -age_tree_delete(Then) -> - with_age_tree( - fun (Tree) -> - Tree1 = gb_trees:delete_any(Then, Tree), - Oldest = oldest(Tree1, fun () -> undefined end), - gen_server:cast(?SERVER, {close, self(), Oldest}), - Tree1 - end). - -age_tree_change() -> - with_age_tree( - fun (Tree) -> - case gb_trees:is_empty(Tree) of - true -> Tree; - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - gen_server:cast(?SERVER, {update, self(), Oldest}) - end, - Tree - end). - -oldest(Tree, DefaultFun) -> - case gb_trees:is_empty(Tree) of - true -> DefaultFun(); - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - Oldest - end. - -new_closed_handle(Path, Mode, Options) -> - WriteBufferSize = - case proplists:get_value(write_buffer, Options, unbuffered) of - unbuffered -> 0; - infinity -> infinity; - N when is_integer(N) -> N - end, - Ref = make_ref(), - put({Ref, fhc_handle}, #handle { hdl = closed, - offset = 0, - trusted_offset = 0, - is_dirty = false, - write_buffer_size = 0, - write_buffer_size_limit = WriteBufferSize, - write_buffer = [], - at_eof = false, - path = Path, - mode = Mode, - options = Options, - is_write = is_writer(Mode), - is_read = is_reader(Mode), - last_used_at = undefined }), - {ok, Ref}. - -soft_close(Ref, Handle) -> - {Res, Handle1} = soft_close(Handle), - case Res of - ok -> put({Ref, fhc_handle}, Handle1), - true; - _ -> put_handle(Ref, Handle1), - false - end. - -soft_close(Handle = #handle { hdl = closed }) -> - {ok, Handle}; -soft_close(Handle) -> - case write_buffer(Handle) of - {ok, #handle { hdl = Hdl, - offset = Offset, - is_dirty = IsDirty, - last_used_at = Then } = Handle1 } -> - ok = case IsDirty of - true -> file:sync(Hdl); - false -> ok - end, - ok = file:close(Hdl), - age_tree_delete(Then), - {ok, Handle1 #handle { hdl = closed, - trusted_offset = Offset, - is_dirty = false, - last_used_at = undefined }}; - {_Error, _Handle} = Result -> - Result - end. - -hard_close(Handle) -> - case soft_close(Handle) of - {ok, #handle { path = Path, - is_read = IsReader, is_write = IsWriter }} -> - #file { reader_count = RCount, has_writer = HasWriter } = File = - get({Path, fhc_file}), - RCount1 = case IsReader of - true -> RCount - 1; - false -> RCount - end, - HasWriter1 = HasWriter andalso not IsWriter, - case RCount1 =:= 0 andalso not HasWriter1 of - true -> erase({Path, fhc_file}); - false -> put({Path, fhc_file}, - File #file { reader_count = RCount1, - has_writer = HasWriter1 }) - end, - ok; - {_Error, _Handle} = Result -> - Result - end. - -maybe_seek(NewOffset, Handle = #handle { hdl = Hdl, offset = Offset, - at_eof = AtEoF }) -> - {AtEoF1, NeedsSeek} = needs_seek(AtEoF, Offset, NewOffset), - case (case NeedsSeek of - true -> file:position(Hdl, NewOffset); - false -> {ok, Offset} - end) of - {ok, Offset1} = Result -> - {Result, Handle #handle { offset = Offset1, at_eof = AtEoF1 }}; - {error, _} = Error -> - {Error, Handle} - end. - -needs_seek( AtEoF, _CurOffset, cur ) -> {AtEoF, false}; -needs_seek( AtEoF, _CurOffset, {cur, 0}) -> {AtEoF, false}; -needs_seek( true, _CurOffset, eof ) -> {true , false}; -needs_seek( true, _CurOffset, {eof, 0}) -> {true , false}; -needs_seek( false, _CurOffset, eof ) -> {true , true }; -needs_seek( false, _CurOffset, {eof, 0}) -> {true , true }; -needs_seek( AtEoF, 0, bof ) -> {AtEoF, false}; -needs_seek( AtEoF, 0, {bof, 0}) -> {AtEoF, false}; -needs_seek( AtEoF, CurOffset, CurOffset) -> {AtEoF, false}; -needs_seek( true, CurOffset, {bof, DesiredOffset}) - when DesiredOffset >= CurOffset -> - {true, true}; -needs_seek( true, _CurOffset, {cur, DesiredOffset}) - when DesiredOffset > 0 -> - {true, true}; -needs_seek( true, CurOffset, DesiredOffset) %% same as {bof, DO} - when is_integer(DesiredOffset) andalso DesiredOffset >= CurOffset -> - {true, true}; -%% because we can't really track size, we could well end up at EoF and not know -needs_seek(_AtEoF, _CurOffset, _DesiredOffset) -> - {false, true}. - -write_buffer(Handle = #handle { write_buffer = [] }) -> - {ok, Handle}; -write_buffer(Handle = #handle { hdl = Hdl, offset = Offset, - write_buffer = WriteBuffer, - write_buffer_size = DataSize, - at_eof = true }) -> - case file:write(Hdl, lists:reverse(WriteBuffer)) of - ok -> - Offset1 = Offset + DataSize, - {ok, Handle #handle { offset = Offset1, is_dirty = true, - write_buffer = [], write_buffer_size = 0 }}; - {error, _} = Error -> - {Error, Handle} - end. - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(obtain_count, #fhc_state{obtain_count = Count}) -> Count; -i(obtain_limit, #fhc_state{obtain_limit = Limit}) -> Limit; -i(Item, _) -> throw({bad_argument, Item}). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - Limit = case application:get_env(file_handles_high_watermark) of - {ok, Watermark} when (is_integer(Watermark) andalso - Watermark > 0) -> - Watermark; - _ -> - case ulimit() of - infinity -> infinity; - unknown -> ?FILE_HANDLES_LIMIT_OTHER; - Lim -> lists:max([2, Lim - ?RESERVED_FOR_OTHERS]) - end - end, - ObtainLimit = obtain_limit(Limit), - error_logger:info_msg("Limiting to approx ~p file handles (~p sockets)~n", - [Limit, ObtainLimit]), - Clients = ets:new(?CLIENT_ETS_TABLE, [set, private, {keypos, #cstate.pid}]), - {ok, #fhc_state { elders = dict:new(), - limit = Limit, - open_count = 0, - open_pending = pending_new(), - obtain_limit = ObtainLimit, - obtain_count = 0, - obtain_pending = pending_new(), - clients = Clients, - timer_ref = undefined }}. - -handle_call({open, Pid, Requested, EldestUnusedSince}, From, - State = #fhc_state { open_count = Count, - open_pending = Pending, - elders = Elders, - clients = Clients }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - Item = #pending { kind = open, - pid = Pid, - requested = Requested, - from = From }, - ok = track_client(Pid, Clients), - State1 = State #fhc_state { elders = Elders1 }, - case needs_reduce(State1 #fhc_state { open_count = Count + Requested }) of - true -> case ets:lookup(Clients, Pid) of - [#cstate { opened = 0 }] -> - true = ets:update_element( - Clients, Pid, {#cstate.blocked, true}), - {noreply, - reduce(State1 #fhc_state { - open_pending = pending_in(Item, Pending) })}; - [#cstate { opened = Opened }] -> - true = ets:update_element( - Clients, Pid, - {#cstate.pending_closes, Opened}), - {reply, close, State1} - end; - false -> {noreply, run_pending_item(Item, State1)} - end; - -handle_call({obtain, Pid}, From, State = #fhc_state { obtain_count = Count, - obtain_pending = Pending, - clients = Clients }) -> - ok = track_client(Pid, Clients), - Item = #pending { kind = obtain, pid = Pid, requested = 1, from = From }, - Enqueue = fun () -> - true = ets:update_element(Clients, Pid, - {#cstate.blocked, true}), - State #fhc_state { - obtain_pending = pending_in(Item, Pending) } - end, - {noreply, - case obtain_limit_reached(State) of - true -> Enqueue(); - false -> case needs_reduce(State #fhc_state { - obtain_count = Count + 1 }) of - true -> reduce(Enqueue()); - false -> adjust_alarm( - State, run_pending_item(Item, State)) - end - end}; - -handle_call({set_limit, Limit}, _From, State) -> - {reply, ok, adjust_alarm( - State, maybe_reduce( - process_pending( - State #fhc_state { - limit = Limit, - obtain_limit = obtain_limit(Limit) })))}; - -handle_call(get_limit, _From, State = #fhc_state { limit = Limit }) -> - {reply, Limit, State}; - -handle_call({info, Items}, _From, State) -> - {reply, infos(Items, State), State}. - -handle_cast({register_callback, Pid, MFA}, - State = #fhc_state { clients = Clients }) -> - ok = track_client(Pid, Clients), - true = ets:update_element(Clients, Pid, {#cstate.callback, MFA}), - {noreply, State}; - -handle_cast({update, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - %% don't call maybe_reduce from here otherwise we can create a - %% storm of messages - {noreply, State #fhc_state { elders = Elders1 }}; - -handle_cast({close, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders, clients = Clients }) -> - Elders1 = case EldestUnusedSince of - undefined -> dict:erase(Pid, Elders); - _ -> dict:store(Pid, EldestUnusedSince, Elders) - end, - ets:update_counter(Clients, Pid, {#cstate.pending_closes, -1, 0, 0}), - {noreply, adjust_alarm(State, process_pending( - update_counts(open, Pid, -1, - State #fhc_state { elders = Elders1 })))}; - -handle_cast({transfer, FromPid, ToPid}, State) -> - ok = track_client(ToPid, State#fhc_state.clients), - {noreply, process_pending( - update_counts(obtain, ToPid, +1, - update_counts(obtain, FromPid, -1, State)))}; - -handle_cast(check_counts, State) -> - {noreply, maybe_reduce(State #fhc_state { timer_ref = undefined })}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #fhc_state { elders = Elders, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_pending = ObtainPending, - clients = Clients }) -> - [#cstate { opened = Opened, obtained = Obtained }] = - ets:lookup(Clients, Pid), - true = ets:delete(Clients, Pid), - FilterFun = fun (#pending { pid = Pid1 }) -> Pid1 =/= Pid end, - {noreply, adjust_alarm( - State, - process_pending( - State #fhc_state { - open_count = OpenCount - Opened, - open_pending = filter_pending(FilterFun, OpenPending), - obtain_count = ObtainCount - Obtained, - obtain_pending = filter_pending(FilterFun, ObtainPending), - elders = dict:erase(Pid, Elders) }))}. - -terminate(_Reason, State = #fhc_state { clients = Clients }) -> - ets:delete(Clients), - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% pending queue abstraction helpers -%%---------------------------------------------------------------------------- - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -filter_pending(Fun, {Count, Queue}) -> - {Delta, Queue1} = - queue_fold(fun (Item, {DeltaN, QueueN}) -> - case Fun(Item) of - true -> {DeltaN, queue:in(Item, QueueN)}; - false -> {DeltaN - requested(Item), QueueN} - end - end, {0, queue:new()}, Queue), - {Count + Delta, Queue1}. - -pending_new() -> - {0, queue:new()}. - -pending_in(Item = #pending { requested = Requested }, {Count, Queue}) -> - {Count + Requested, queue:in(Item, Queue)}. - -pending_out({0, _Queue} = Pending) -> - {empty, Pending}; -pending_out({N, Queue}) -> - {{value, #pending { requested = Requested }} = Result, Queue1} = - queue:out(Queue), - {Result, {N - Requested, Queue1}}. - -pending_count({Count, _Queue}) -> - Count. - -pending_is_empty({0, _Queue}) -> - true; -pending_is_empty({_N, _Queue}) -> - false. - -%%---------------------------------------------------------------------------- -%% server helpers -%%---------------------------------------------------------------------------- - -obtain_limit(infinity) -> infinity; -obtain_limit(Limit) -> case ?OBTAIN_LIMIT(Limit) of - OLimit when OLimit < 0 -> 0; - OLimit -> OLimit - end. - -obtain_limit_reached(#fhc_state { obtain_limit = Limit, - obtain_count = Count}) -> - Limit =/= infinity andalso Count >= Limit. - -adjust_alarm(OldState, NewState) -> - case {obtain_limit_reached(OldState), obtain_limit_reached(NewState)} of - {false, true} -> alarm_handler:set_alarm({file_descriptor_limit, []}); - {true, false} -> alarm_handler:clear_alarm(file_descriptor_limit); - _ -> ok - end, - NewState. - -requested({_Kind, _Pid, Requested, _From}) -> - Requested. - -process_pending(State = #fhc_state { limit = infinity }) -> - State; -process_pending(State) -> - process_open(process_obtain(State)). - -process_open(State = #fhc_state { limit = Limit, - open_pending = Pending, - open_count = OpenCount, - obtain_count = ObtainCount }) -> - {Pending1, State1} = - process_pending(Pending, Limit - (ObtainCount + OpenCount), State), - State1 #fhc_state { open_pending = Pending1 }. - -process_obtain(State = #fhc_state { limit = Limit, - obtain_pending = Pending, - obtain_limit = ObtainLimit, - obtain_count = ObtainCount, - open_count = OpenCount }) -> - Quota = lists:min([ObtainLimit - ObtainCount, - Limit - (ObtainCount + OpenCount)]), - {Pending1, State1} = process_pending(Pending, Quota, State), - State1 #fhc_state { obtain_pending = Pending1 }. - -process_pending(Pending, Quota, State) when Quota =< 0 -> - {Pending, State}; -process_pending(Pending, Quota, State) -> - case pending_out(Pending) of - {empty, _Pending} -> - {Pending, State}; - {{value, #pending { requested = Requested }}, _Pending1} - when Requested > Quota -> - {Pending, State}; - {{value, #pending { requested = Requested } = Item}, Pending1} -> - process_pending(Pending1, Quota - Requested, - run_pending_item(Item, State)) - end. - -run_pending_item(#pending { kind = Kind, - pid = Pid, - requested = Requested, - from = From }, - State = #fhc_state { clients = Clients }) -> - gen_server:reply(From, ok), - true = ets:update_element(Clients, Pid, {#cstate.blocked, false}), - update_counts(Kind, Pid, Requested, State). - -update_counts(Kind, Pid, Delta, - State = #fhc_state { open_count = OpenCount, - obtain_count = ObtainCount, - clients = Clients }) -> - {OpenDelta, ObtainDelta} = update_counts1(Kind, Pid, Delta, Clients), - State #fhc_state { open_count = OpenCount + OpenDelta, - obtain_count = ObtainCount + ObtainDelta }. - -update_counts1(open, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.opened, Delta}), - {Delta, 0}; -update_counts1(obtain, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.obtained, Delta}), - {0, Delta}. - -maybe_reduce(State) -> - case needs_reduce(State) of - true -> reduce(State); - false -> State - end. - -needs_reduce(#fhc_state { limit = Limit, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_limit = ObtainLimit, - obtain_pending = ObtainPending }) -> - Limit =/= infinity - andalso ((OpenCount + ObtainCount > Limit) - orelse (not pending_is_empty(OpenPending)) - orelse (ObtainCount < ObtainLimit - andalso not pending_is_empty(ObtainPending))). - -reduce(State = #fhc_state { open_pending = OpenPending, - obtain_pending = ObtainPending, - elders = Elders, - clients = Clients, - timer_ref = TRef }) -> - Now = now(), - {CStates, Sum, ClientCount} = - dict:fold(fun (Pid, Eldest, {CStatesAcc, SumAcc, CountAcc} = Accs) -> - [#cstate { pending_closes = PendingCloses, - opened = Opened, - blocked = Blocked } = CState] = - ets:lookup(Clients, Pid), - case Blocked orelse PendingCloses =:= Opened of - true -> Accs; - false -> {[CState | CStatesAcc], - SumAcc + timer:now_diff(Now, Eldest), - CountAcc + 1} - end - end, {[], 0, 0}, Elders), - case CStates of - [] -> ok; - _ -> case (Sum / ClientCount) - - (1000 * ?FILE_HANDLES_CHECK_INTERVAL) of - AverageAge when AverageAge > 0 -> - notify_age(CStates, AverageAge); - _ -> - notify_age0(Clients, CStates, - pending_count(OpenPending) + - pending_count(ObtainPending)) - end - end, - case TRef of - undefined -> {ok, TRef1} = timer:apply_after( - ?FILE_HANDLES_CHECK_INTERVAL, - gen_server, cast, [?SERVER, check_counts]), - State #fhc_state { timer_ref = TRef1 }; - _ -> State - end. - -notify_age(CStates, AverageAge) -> - lists:foreach( - fun (#cstate { callback = undefined }) -> ok; - (#cstate { callback = {M, F, A} }) -> apply(M, F, A ++ [AverageAge]) - end, CStates). - -notify_age0(Clients, CStates, Required) -> - Notifications = - [CState || CState <- CStates, CState#cstate.callback =/= undefined], - {L1, L2} = lists:split(random:uniform(length(Notifications)), - Notifications), - notify(Clients, Required, L2 ++ L1). - -notify(_Clients, _Required, []) -> - ok; -notify(_Clients, Required, _Notifications) when Required =< 0 -> - ok; -notify(Clients, Required, [#cstate{ pid = Pid, - callback = {M, F, A}, - opened = Opened } | Notifications]) -> - apply(M, F, A ++ [0]), - ets:update_element(Clients, Pid, {#cstate.pending_closes, Opened}), - notify(Clients, Required - Opened, Notifications). - -track_client(Pid, Clients) -> - case ets:insert_new(Clients, #cstate { pid = Pid, - callback = undefined, - opened = 0, - obtained = 0, - blocked = false, - pending_closes = 0 }) of - true -> _MRef = erlang:monitor(process, Pid), - ok; - false -> ok - end. - - -%% To increase the number of file descriptors: on Windows set ERL_MAX_PORTS -%% environment variable, on Linux set `ulimit -n`. -ulimit() -> - case proplists:get_value(max_fds, erlang:system_info(check_io)) of - MaxFds when is_integer(MaxFds) andalso MaxFds > 1 -> - case os:type() of - {win32, _OsName} -> - %% On Windows max_fds is twice the number of open files: - %% https://github.com/yrashk/erlang/blob/e1282325ed75e52a98d5/erts/emulator/sys/win32/sys.c#L2459-2466 - MaxFds div 2; - _Any -> - %% For other operating systems trust Erlang. - MaxFds - end; - _ -> - unknown - end. diff --git a/src/gatherer.erl b/src/gatherer.erl deleted file mode 100644 index aa43e9a9..00000000 --- a/src/gatherer.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gatherer). - --behaviour(gen_server2). - --export([start_link/0, stop/1, fork/1, finish/1, in/2, out/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(stop/1 :: (pid()) -> 'ok'). --spec(fork/1 :: (pid()) -> 'ok'). --spec(finish/1 :: (pid()) -> 'ok'). --spec(in/2 :: (pid(), any()) -> 'ok'). --spec(out/1 :: (pid()) -> {'value', any()} | 'empty'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - --record(gstate, { forks, values, blocked }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link(?MODULE, [], [{timeout, infinity}]). - -stop(Pid) -> - gen_server2:call(Pid, stop, infinity). - -fork(Pid) -> - gen_server2:call(Pid, fork, infinity). - -finish(Pid) -> - gen_server2:cast(Pid, finish). - -in(Pid, Value) -> - gen_server2:cast(Pid, {in, Value}). - -out(Pid) -> - gen_server2:call(Pid, out, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #gstate { forks = 0, values = queue:new(), blocked = queue:new() }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; - -handle_call(fork, _From, State = #gstate { forks = Forks }) -> - {reply, ok, State #gstate { forks = Forks + 1 }, hibernate}; - -handle_call(out, From, State = #gstate { forks = Forks, - values = Values, - blocked = Blocked }) -> - case queue:out(Values) of - {empty, _} -> - case Forks of - 0 -> {reply, empty, State, hibernate}; - _ -> {noreply, - State #gstate { blocked = queue:in(From, Blocked) }, - hibernate} - end; - {{value, _Value} = V, NewValues} -> - {reply, V, State #gstate { values = NewValues }, hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast(finish, State = #gstate { forks = Forks, blocked = Blocked }) -> - NewForks = Forks - 1, - NewBlocked = case NewForks of - 0 -> [gen_server2:reply(From, empty) || - From <- queue:to_list(Blocked)], - queue:new(); - _ -> Blocked - end, - {noreply, State #gstate { forks = NewForks, blocked = NewBlocked }, - hibernate}; - -handle_cast({in, Value}, State = #gstate { values = Values, - blocked = Blocked }) -> - {noreply, case queue:out(Blocked) of - {empty, _} -> - State #gstate { values = queue:in(Value, Values) }; - {{value, From}, NewBlocked} -> - gen_server2:reply(From, {value, Value}), - State #gstate { blocked = NewBlocked } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. diff --git a/src/gen_server2.erl b/src/gen_server2.erl deleted file mode 100644 index 43e0a8f5..00000000 --- a/src/gen_server2.erl +++ /dev/null @@ -1,1177 +0,0 @@ -%% This file is a copy of gen_server.erl from the R13B-1 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is gen_server2 -%% -%% 2) more efficient handling of selective receives in callbacks -%% gen_server2 processes drain their message queue into an internal -%% buffer before invoking any callback module functions. Messages are -%% dequeued from the buffer for processing. Thus the effective message -%% queue of a gen_server2 process is the concatenation of the internal -%% buffer and the real message queue. -%% As a result of the draining, any selective receive invoked inside a -%% callback is less likely to have to scan a large message queue. -%% -%% 3) gen_server2:cast is guaranteed to be order-preserving -%% The original code could reorder messages when communicating with a -%% process on a remote node that was not currently connected. -%% -%% 4) The callback module can optionally implement prioritise_call/3, -%% prioritise_cast/2 and prioritise_info/2. These functions take -%% Message, From and State or just Message and State and return a -%% single integer representing the priority attached to the message. -%% Messages with higher priorities are processed before requests with -%% lower priorities. The default priority is 0. -%% -%% 5) The callback module can optionally implement -%% handle_pre_hibernate/1 and handle_post_hibernate/1. These will be -%% called immediately prior to and post hibernation, respectively. If -%% handle_pre_hibernate returns {hibernate, NewState} then the process -%% will hibernate. If the module does not implement -%% handle_pre_hibernate/1 then the default action is to hibernate. -%% -%% 6) init can return a 4th arg, {backoff, InitialTimeout, -%% MinimumTimeout, DesiredHibernatePeriod} (all in -%% milliseconds). Then, on all callbacks which can return a timeout -%% (including init), timeout can be 'hibernate'. When this is the -%% case, the current timeout value will be used (initially, the -%% InitialTimeout supplied from init). After this timeout has -%% occurred, hibernation will occur as normal. Upon awaking, a new -%% current timeout value will be calculated. -%% -%% The purpose is that the gen_server2 takes care of adjusting the -%% current timeout value such that the process will increase the -%% timeout value repeatedly if it is unable to sleep for the -%% DesiredHibernatePeriod. If it is able to sleep for the -%% DesiredHibernatePeriod it will decrease the current timeout down to -%% the MinimumTimeout, so that the process is put to sleep sooner (and -%% hopefully stays asleep for longer). In short, should a process -%% using this receive a burst of messages, it should not hibernate -%% between those messages, but as the messages become less frequent, -%% the process will not only hibernate, it will do so sooner after -%% each message. -%% -%% When using this backoff mechanism, normal timeout values (i.e. not -%% 'hibernate') can still be used, and if they are used then the -%% handle_info(timeout, State) will be called as normal. In this case, -%% returning 'hibernate' from handle_info(timeout, State) will not -%% hibernate the process immediately, as it would if backoff wasn't -%% being used. Instead it'll wait for the current timeout as described -%% above. -%% -%% 7) The callback module can return from any of the handle_* -%% functions, a {become, Module, State} triple, or a {become, Module, -%% State, Timeout} quadruple. This allows the gen_server to -%% dynamically change the callback module. The State is the new state -%% which will be passed into any of the callback functions in the new -%% module. Note there is no form also encompassing a reply, thus if -%% you wish to reply in handle_call/3 and change the callback module, -%% you need to use gen_server2:reply/2 to issue the reply manually. - -%% All modifications are (C) 2009-2011 VMware, Inc. - -%% ``The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved via the world wide web at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. -%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings -%% AB. All Rights Reserved.'' -%% -%% $Id$ -%% --module(gen_server2). - -%%% --------------------------------------------------- -%%% -%%% The idea behind THIS server is that the user module -%%% provides (different) functions to handle different -%%% kind of inputs. -%%% If the Parent process terminates the Module:terminate/2 -%%% function is called. -%%% -%%% The user module should export: -%%% -%%% init(Args) -%%% ==> {ok, State} -%%% {ok, State, Timeout} -%%% {ok, State, Timeout, Backoff} -%%% ignore -%%% {stop, Reason} -%%% -%%% handle_call(Msg, {From, Tag}, State) -%%% -%%% ==> {reply, Reply, State} -%%% {reply, Reply, State, Timeout} -%%% {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, Reply, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_cast(Msg, State) -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_info(Info, State) Info is e.g. {'EXIT', P, R}, {nodedown, N}, ... -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% terminate(Reason, State) Let the user module clean up -%%% always called when server terminates -%%% -%%% ==> ok -%%% -%%% handle_pre_hibernate(State) -%%% -%%% ==> {hibernate, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% handle_post_hibernate(State) -%%% -%%% ==> {noreply, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% The work flow (of the server) can be described as follows: -%%% -%%% User module Generic -%%% ----------- ------- -%%% start -----> start -%%% init <----- . -%%% -%%% loop -%%% handle_call <----- . -%%% -----> reply -%%% -%%% handle_cast <----- . -%%% -%%% handle_info <----- . -%%% -%%% terminate <----- . -%%% -%%% -----> reply -%%% -%%% -%%% --------------------------------------------------- - -%% API --export([start/3, start/4, - start_link/3, start_link/4, - call/2, call/3, - cast/2, reply/2, - abcast/2, abcast/3, - multi_call/2, multi_call/3, multi_call/4, - enter_loop/3, enter_loop/4, enter_loop/5, enter_loop/6, wake_hib/1]). - --export([behaviour_info/1]). - -%% System exports --export([system_continue/3, - system_terminate/4, - system_code_change/4, - format_status/2]). - -%% Internal exports --export([init_it/6]). - --import(error_logger, [format/2]). - -%% State record --record(gs2_state, {parent, name, state, mod, time, - timeout_state, queue, debug, prioritise_call, - prioritise_cast, prioritise_info}). - -%%%========================================================================= -%%% Specs. These exist only to shut up dialyzer's warnings -%%%========================================================================= - --ifdef(use_specs). - --type(gs2_state() :: #gs2_state{}). - --spec(handle_common_termination/3 :: - (any(), atom(), gs2_state()) -> no_return()). --spec(hibernate/1 :: (gs2_state()) -> no_return()). --spec(pre_hibernate/1 :: (gs2_state()) -> no_return()). --spec(system_terminate/4 :: (_, _, _, gs2_state()) -> no_return()). - --endif. - -%%%========================================================================= -%%% API -%%%========================================================================= - -behaviour_info(callbacks) -> - [{init,1},{handle_call,3},{handle_cast,2},{handle_info,2}, - {terminate,2},{code_change,3}]; -behaviour_info(_Other) -> - undefined. - -%%% ----------------------------------------------------------------- -%%% Starts a generic server. -%%% start(Mod, Args, Options) -%%% start(Name, Mod, Args, Options) -%%% start_link(Mod, Args, Options) -%%% start_link(Name, Mod, Args, Options) where: -%%% Name ::= {local, atom()} | {global, atom()} -%%% Mod ::= atom(), callback module implementing the 'real' server -%%% Args ::= term(), init arguments (to Mod:init/1) -%%% Options ::= [{timeout, Timeout} | {debug, [Flag]}] -%%% Flag ::= trace | log | {logfile, File} | statistics | debug -%%% (debug == log && statistics) -%%% Returns: {ok, Pid} | -%%% {error, {already_started, Pid}} | -%%% {error, Reason} -%%% ----------------------------------------------------------------- -start(Mod, Args, Options) -> - gen:start(?MODULE, nolink, Mod, Args, Options). - -start(Name, Mod, Args, Options) -> - gen:start(?MODULE, nolink, Name, Mod, Args, Options). - -start_link(Mod, Args, Options) -> - gen:start(?MODULE, link, Mod, Args, Options). - -start_link(Name, Mod, Args, Options) -> - gen:start(?MODULE, link, Name, Mod, Args, Options). - - -%% ----------------------------------------------------------------- -%% Make a call to a generic server. -%% If the server is located at another node, that node will -%% be monitored. -%% If the client is trapping exits and is linked server termination -%% is handled here (? Shall we do that here (or rely on timeouts) ?). -%% ----------------------------------------------------------------- -call(Name, Request) -> - case catch gen:call(Name, '$gen_call', Request) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request]}}) - end. - -call(Name, Request, Timeout) -> - case catch gen:call(Name, '$gen_call', Request, Timeout) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request, Timeout]}}) - end. - -%% ----------------------------------------------------------------- -%% Make a cast to a generic server. -%% ----------------------------------------------------------------- -cast({global,Name}, Request) -> - catch global:send(Name, cast_msg(Request)), - ok; -cast({Name,Node}=Dest, Request) when is_atom(Name), is_atom(Node) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_atom(Dest) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_pid(Dest) -> - do_cast(Dest, Request). - -do_cast(Dest, Request) -> - do_send(Dest, cast_msg(Request)), - ok. - -cast_msg(Request) -> {'$gen_cast',Request}. - -%% ----------------------------------------------------------------- -%% Send a reply to the client. -%% ----------------------------------------------------------------- -reply({To, Tag}, Reply) -> - catch To ! {Tag, Reply}. - -%% ----------------------------------------------------------------- -%% Asyncronous broadcast, returns nothing, it's just send'n pray -%% ----------------------------------------------------------------- -abcast(Name, Request) when is_atom(Name) -> - do_abcast([node() | nodes()], Name, cast_msg(Request)). - -abcast(Nodes, Name, Request) when is_list(Nodes), is_atom(Name) -> - do_abcast(Nodes, Name, cast_msg(Request)). - -do_abcast([Node|Nodes], Name, Msg) when is_atom(Node) -> - do_send({Name,Node},Msg), - do_abcast(Nodes, Name, Msg); -do_abcast([], _,_) -> abcast. - -%%% ----------------------------------------------------------------- -%%% Make a call to servers at several nodes. -%%% Returns: {[Replies],[BadNodes]} -%%% A Timeout can be given -%%% -%%% A middleman process is used in case late answers arrives after -%%% the timeout. If they would be allowed to glog the callers message -%%% queue, it would probably become confused. Late answers will -%%% now arrive to the terminated middleman and so be discarded. -%%% ----------------------------------------------------------------- -multi_call(Name, Req) - when is_atom(Name) -> - do_multi_call([node() | nodes()], Name, Req, infinity). - -multi_call(Nodes, Name, Req) - when is_list(Nodes), is_atom(Name) -> - do_multi_call(Nodes, Name, Req, infinity). - -multi_call(Nodes, Name, Req, infinity) -> - do_multi_call(Nodes, Name, Req, infinity); -multi_call(Nodes, Name, Req, Timeout) - when is_list(Nodes), is_atom(Name), is_integer(Timeout), Timeout >= 0 -> - do_multi_call(Nodes, Name, Req, Timeout). - - -%%----------------------------------------------------------------- -%% enter_loop(Mod, Options, State, , , ) ->_ -%% -%% Description: Makes an existing process into a gen_server. -%% The calling process will enter the gen_server receive -%% loop and become a gen_server process. -%% The process *must* have been started using one of the -%% start functions in proc_lib, see proc_lib(3). -%% The user is responsible for any initialization of the -%% process, including registering a name for it. -%%----------------------------------------------------------------- -enter_loop(Mod, Options, State) -> - enter_loop(Mod, Options, State, self(), infinity, undefined). - -enter_loop(Mod, Options, State, Backoff = {backoff, _, _ , _}) -> - enter_loop(Mod, Options, State, self(), infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName = {_, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, undefined); - -enter_loop(Mod, Options, State, Timeout) -> - enter_loop(Mod, Options, State, self(), Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Backoff = {backoff, _, _, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName, Timeout) -> - enter_loop(Mod, Options, State, ServerName, Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Timeout, Backoff) -> - Name = get_proc_name(ServerName), - Parent = get_parent(), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - Backoff1 = extend_backoff(Backoff), - loop(find_prioritisers( - #gs2_state { parent = Parent, name = Name, state = State, - mod = Mod, time = Timeout, timeout_state = Backoff1, - queue = Queue, debug = Debug })). - -%%%======================================================================== -%%% Gen-callback functions -%%%======================================================================== - -%%% --------------------------------------------------- -%%% Initiate the new process. -%%% Register the name using the Rfunc function -%%% Calls the Mod:init/Args function. -%%% Finally an acknowledge is sent to Parent and the main -%%% loop is entered. -%%% --------------------------------------------------- -init_it(Starter, self, Name, Mod, Args, Options) -> - init_it(Starter, self(), Name, Mod, Args, Options); -init_it(Starter, Parent, Name0, Mod, Args, Options) -> - Name = name(Name0), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - GS2State = find_prioritisers( - #gs2_state { parent = Parent, - name = Name, - mod = Mod, - queue = Queue, - debug = Debug }), - case catch Mod:init(Args) of - {ok, State} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = infinity, - timeout_state = undefined }); - {ok, State, Timeout} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = undefined }); - {ok, State, Timeout, Backoff = {backoff, _, _, _}} -> - Backoff1 = extend_backoff(Backoff), - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = Backoff1 }); - {stop, Reason} -> - %% For consistency, we must make sure that the - %% registered name (if any) is unregistered before - %% the parent process is notified about the failure. - %% (Otherwise, the parent process could get - %% an 'already_started' error if it immediately - %% tried starting the process again.) - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - ignore -> - unregister_name(Name0), - proc_lib:init_ack(Starter, ignore), - exit(normal); - {'EXIT', Reason} -> - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - Else -> - Error = {bad_return_value, Else}, - proc_lib:init_ack(Starter, {error, Error}), - exit(Error) - end. - -name({local,Name}) -> Name; -name({global,Name}) -> Name; -%% name(Pid) when is_pid(Pid) -> Pid; -%% when R12 goes away, drop the line beneath and uncomment the line above -name(Name) -> Name. - -unregister_name({local,Name}) -> - _ = (catch unregister(Name)); -unregister_name({global,Name}) -> - _ = global:unregister_name(Name); -unregister_name(Pid) when is_pid(Pid) -> - Pid; -%% Under R12 let's just ignore it, as we have a single term as Name. -%% On R13 it will never get here, as we get tuple with 'local/global' atom. -unregister_name(_Name) -> ok. - -extend_backoff(undefined) -> - undefined; -extend_backoff({backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod}) -> - {backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod, now()}. - -%%%======================================================================== -%%% Internal functions -%%%======================================================================== -%%% --------------------------------------------------- -%%% The MAIN loop. -%%% --------------------------------------------------- -loop(GS2State = #gs2_state { time = hibernate, - timeout_state = undefined }) -> - pre_hibernate(GS2State); -loop(GS2State) -> - process_next_msg(drain(GS2State)). - -drain(GS2State) -> - receive - Input -> drain(in(Input, GS2State)) - after 0 -> GS2State - end. - -process_next_msg(GS2State = #gs2_state { time = Time, - timeout_state = TimeoutState, - queue = Queue }) -> - case priority_queue:out(Queue) of - {{value, Msg}, Queue1} -> - process_msg(Msg, GS2State #gs2_state { queue = Queue1 }); - {empty, Queue1} -> - {Time1, HibOnTimeout} - = case {Time, TimeoutState} of - {hibernate, {backoff, Current, _Min, _Desired, _RSt}} -> - {Current, true}; - {hibernate, _} -> - %% wake_hib/7 will set Time to hibernate. If - %% we were woken and didn't receive a msg - %% then we will get here and need a sensible - %% value for Time1, otherwise we crash. - %% R13B1 always waits infinitely when waking - %% from hibernation, so that's what we do - %% here too. - {infinity, false}; - _ -> {Time, false} - end, - receive - Input -> - %% Time could be 'hibernate' here, so *don't* call loop - process_next_msg( - drain(in(Input, GS2State #gs2_state { queue = Queue1 }))) - after Time1 -> - case HibOnTimeout of - true -> - pre_hibernate( - GS2State #gs2_state { queue = Queue1 }); - false -> - process_msg(timeout, - GS2State #gs2_state { queue = Queue1 }) - end - end - end. - -wake_hib(GS2State = #gs2_state { timeout_state = TS }) -> - TimeoutState1 = case TS of - undefined -> - undefined; - {SleptAt, TimeoutState} -> - adjust_timeout_state(SleptAt, now(), TimeoutState) - end, - post_hibernate( - drain(GS2State #gs2_state { timeout_state = TimeoutState1 })). - -hibernate(GS2State = #gs2_state { timeout_state = TimeoutState }) -> - TS = case TimeoutState of - undefined -> undefined; - {backoff, _, _, _, _} -> {now(), TimeoutState} - end, - proc_lib:hibernate(?MODULE, wake_hib, - [GS2State #gs2_state { timeout_state = TS }]). - -pre_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_pre_hibernate, 1) of - true -> - case catch Mod:handle_pre_hibernate(State) of - {hibernate, NState} -> - hibernate(GS2State #gs2_state { state = NState } ); - Reply -> - handle_common_termination(Reply, pre_hibernate, GS2State) - end; - false -> - hibernate(GS2State) - end. - -post_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_post_hibernate, 1) of - true -> - case catch Mod:handle_post_hibernate(State) of - {noreply, NState} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = infinity }); - {noreply, NState, Time} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = Time }); - Reply -> - handle_common_termination(Reply, post_hibernate, GS2State) - end; - false -> - %% use hibernate here, not infinity. This matches - %% R13B. The key is that we should be able to get through - %% to process_msg calling sys:handle_system_msg with Time - %% still set to hibernate, iff that msg is the very msg - %% that woke us up (or the first msg we receive after - %% waking up). - process_next_msg(GS2State #gs2_state { time = hibernate }) - end. - -adjust_timeout_state(SleptAt, AwokeAt, {backoff, CurrentTO, MinimumTO, - DesiredHibPeriod, RandomState}) -> - NapLengthMicros = timer:now_diff(AwokeAt, SleptAt), - CurrentMicros = CurrentTO * 1000, - MinimumMicros = MinimumTO * 1000, - DesiredHibMicros = DesiredHibPeriod * 1000, - GapBetweenMessagesMicros = NapLengthMicros + CurrentMicros, - Base = - %% If enough time has passed between the last two messages then we - %% should consider sleeping sooner. Otherwise stay awake longer. - case GapBetweenMessagesMicros > (MinimumMicros + DesiredHibMicros) of - true -> lists:max([MinimumTO, CurrentTO div 2]); - false -> CurrentTO - end, - {Extra, RandomState1} = random:uniform_s(Base, RandomState), - CurrentTO1 = Base + Extra, - {backoff, CurrentTO1, MinimumTO, DesiredHibPeriod, RandomState1}. - -in({'$gen_cast', Msg}, GS2State = #gs2_state { prioritise_cast = PC, - queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - {'$gen_cast', Msg}, - PC(Msg, GS2State), Queue) }; -in({'$gen_call', From, Msg}, GS2State = #gs2_state { prioritise_call = PC, - queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - {'$gen_call', From, Msg}, - PC(Msg, From, GS2State), Queue) }; -in(Input, GS2State = #gs2_state { prioritise_info = PI, queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - Input, PI(Input, GS2State), Queue) }. - -process_msg(Msg, - GS2State = #gs2_state { parent = Parent, - name = Name, - debug = Debug }) -> - case Msg of - {system, From, Req} -> - sys:handle_system_msg( - Req, From, Parent, ?MODULE, Debug, - GS2State); - %% gen_server puts Hib on the end as the 7th arg, but that - %% version of the function seems not to be documented so - %% leaving out for now. - {'EXIT', Parent, Reason} -> - terminate(Reason, Msg, GS2State); - _Msg when Debug =:= [] -> - handle_msg(Msg, GS2State); - _Msg -> - Debug1 = sys:handle_debug(Debug, fun print_event/3, - Name, {in, Msg}), - handle_msg(Msg, GS2State #gs2_state { debug = Debug1 }) - end. - -%%% --------------------------------------------------- -%%% Send/recive functions -%%% --------------------------------------------------- -do_send(Dest, Msg) -> - catch erlang:send(Dest, Msg). - -do_multi_call(Nodes, Name, Req, infinity) -> - Tag = make_ref(), - Monitors = send_nodes(Nodes, Name, Tag, Req), - rec_nodes(Tag, Monitors, Name, undefined); -do_multi_call(Nodes, Name, Req, Timeout) -> - Tag = make_ref(), - Caller = self(), - Receiver = - spawn( - fun () -> - %% Middleman process. Should be unsensitive to regular - %% exit signals. The sychronization is needed in case - %% the receiver would exit before the caller started - %% the monitor. - process_flag(trap_exit, true), - Mref = erlang:monitor(process, Caller), - receive - {Caller,Tag} -> - Monitors = send_nodes(Nodes, Name, Tag, Req), - TimerId = erlang:start_timer(Timeout, self(), ok), - Result = rec_nodes(Tag, Monitors, Name, TimerId), - exit({self(),Tag,Result}); - {'DOWN',Mref,_,_,_} -> - %% Caller died before sending us the go-ahead. - %% Give up silently. - exit(normal) - end - end), - Mref = erlang:monitor(process, Receiver), - Receiver ! {self(),Tag}, - receive - {'DOWN',Mref,_,_,{Receiver,Tag,Result}} -> - Result; - {'DOWN',Mref,_,_,Reason} -> - %% The middleman code failed. Or someone did - %% exit(_, kill) on the middleman process => Reason==killed - exit(Reason) - end. - -send_nodes(Nodes, Name, Tag, Req) -> - send_nodes(Nodes, Name, Tag, Req, []). - -send_nodes([Node|Tail], Name, Tag, Req, Monitors) - when is_atom(Node) -> - Monitor = start_monitor(Node, Name), - %% Handle non-existing names in rec_nodes. - catch {Name, Node} ! {'$gen_call', {self(), {Tag, Node}}, Req}, - send_nodes(Tail, Name, Tag, Req, [Monitor | Monitors]); -send_nodes([_Node|Tail], Name, Tag, Req, Monitors) -> - %% Skip non-atom Node - send_nodes(Tail, Name, Tag, Req, Monitors); -send_nodes([], _Name, _Tag, _Req, Monitors) -> - Monitors. - -%% Against old nodes: -%% If no reply has been delivered within 2 secs. (per node) check that -%% the server really exists and wait for ever for the answer. -%% -%% Against contemporary nodes: -%% Wait for reply, server 'DOWN', or timeout from TimerId. - -rec_nodes(Tag, Nodes, Name, TimerId) -> - rec_nodes(Tag, Nodes, Name, [], [], 2000, TimerId). - -rec_nodes(Tag, [{N,R}|Tail], Name, Badnodes, Replies, Time, TimerId ) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, Time, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], Time, TimerId); - {timeout, TimerId, _} -> - unmonitor(R), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes(Tag, [N|Tail], Name, Badnodes, Replies, Time, TimerId) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, 2000, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], 2000, TimerId); - {timeout, TimerId, _} -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N | Badnodes], Replies) - after Time -> - case rpc:call(N, erlang, whereis, [Name]) of - Pid when is_pid(Pid) -> % It exists try again. - rec_nodes(Tag, [N|Tail], Name, Badnodes, - Replies, infinity, TimerId); - _ -> % badnode - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], - Replies, 2000, TimerId) - end - end; -rec_nodes(_, [], _, Badnodes, Replies, _, TimerId) -> - case catch erlang:cancel_timer(TimerId) of - false -> % It has already sent it's message - receive - {timeout, TimerId, _} -> ok - after 0 -> - ok - end; - _ -> % Timer was cancelled, or TimerId was 'undefined' - ok - end, - {Replies, Badnodes}. - -%% Collect all replies that already have arrived -rec_nodes_rest(Tag, [{N,R}|Tail], Name, Badnodes, Replies) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(Tag, [N|Tail], Name, Badnodes, Replies) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(_Tag, [], _Name, Badnodes, Replies) -> - {Replies, Badnodes}. - - -%%% --------------------------------------------------- -%%% Monitor functions -%%% --------------------------------------------------- - -start_monitor(Node, Name) when is_atom(Node), is_atom(Name) -> - if node() =:= nonode@nohost, Node =/= nonode@nohost -> - Ref = make_ref(), - self() ! {'DOWN', Ref, process, {Name, Node}, noconnection}, - {Node, Ref}; - true -> - case catch erlang:monitor(process, {Name, Node}) of - {'EXIT', _} -> - %% Remote node is R6 - monitor_node(Node, true), - Node; - Ref when is_reference(Ref) -> - {Node, Ref} - end - end. - -%% Cancels a monitor started with Ref=erlang:monitor(_, _). -unmonitor(Ref) when is_reference(Ref) -> - erlang:demonitor(Ref), - receive - {'DOWN', Ref, _, _, _} -> - true - after 0 -> - true - end. - -%%% --------------------------------------------------- -%%% Message handling functions -%%% --------------------------------------------------- - -dispatch({'$gen_cast', Msg}, Mod, State) -> - Mod:handle_cast(Msg, State); -dispatch(Info, Mod, State) -> - Mod:handle_info(Info, State). - -common_reply(_Name, From, Reply, _NState, [] = _Debug) -> - reply(From, Reply), - []; -common_reply(Name, From, Reply, NState, Debug) -> - reply(Name, From, Reply, NState, Debug). - -common_debug([] = _Debug, _Func, _Info, _Event) -> - []; -common_debug(Debug, Func, Info, Event) -> - sys:handle_debug(Debug, Func, Info, Event). - -handle_msg({'$gen_call', From, Msg}, GS2State = #gs2_state { mod = Mod, - state = State, - name = Name, - debug = Debug }) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {reply, Reply, NState, Time1} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1}); - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = infinity, - debug = Debug1}); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = Time1, - debug = Debug1}); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Msg, - GS2State #gs2_state { state = NState })), - reply(Name, From, Reply, NState, Debug), - exit(R); - Other -> - handle_common_reply(Other, Msg, GS2State) - end; -handle_msg(Msg, GS2State = #gs2_state { mod = Mod, state = State }) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, Msg, GS2State). - -handle_common_reply(Reply, Msg, GS2State = #gs2_state { name = Name, - debug = Debug}) -> - case Reply of - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1 }); - {become, Mod, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {become, Mod, NState}), - loop(find_prioritisers( - GS2State #gs2_state { mod = Mod, - state = NState, - time = infinity, - debug = Debug1 })); - {become, Mod, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {become, Mod, NState}), - loop(find_prioritisers( - GS2State #gs2_state { mod = Mod, - state = NState, - time = Time1, - debug = Debug1 })); - _ -> - handle_common_termination(Reply, Msg, GS2State) - end. - -handle_common_termination(Reply, Msg, GS2State) -> - case Reply of - {stop, Reason, NState} -> - terminate(Reason, Msg, GS2State #gs2_state { state = NState }); - {'EXIT', What} -> - terminate(What, Msg, GS2State); - _ -> - terminate({bad_return_value, Reply}, Msg, GS2State) - end. - -reply(Name, {To, Tag}, Reply, State, Debug) -> - reply({To, Tag}, Reply), - sys:handle_debug( - Debug, fun print_event/3, Name, {out, Reply, To, State}). - - -%%----------------------------------------------------------------- -%% Callback functions for system messages handling. -%%----------------------------------------------------------------- -system_continue(Parent, Debug, GS2State) -> - loop(GS2State #gs2_state { parent = Parent, debug = Debug }). - -system_terminate(Reason, _Parent, Debug, GS2State) -> - terminate(Reason, [], GS2State #gs2_state { debug = Debug }). - -system_code_change(GS2State = #gs2_state { mod = Mod, - state = State }, - _Module, OldVsn, Extra) -> - case catch Mod:code_change(OldVsn, State, Extra) of - {ok, NewState} -> - NewGS2State = find_prioritisers( - GS2State #gs2_state { state = NewState }), - {ok, [NewGS2State]}; - Else -> - Else - end. - -%%----------------------------------------------------------------- -%% Format debug messages. Print them as the call-back module sees -%% them, not as the real erlang messages. Use trace for that. -%%----------------------------------------------------------------- -print_event(Dev, {in, Msg}, Name) -> - case Msg of - {'$gen_call', {From, _Tag}, Call} -> - io:format(Dev, "*DBG* ~p got call ~p from ~w~n", - [Name, Call, From]); - {'$gen_cast', Cast} -> - io:format(Dev, "*DBG* ~p got cast ~p~n", - [Name, Cast]); - _ -> - io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg]) - end; -print_event(Dev, {out, Msg, To, State}, Name) -> - io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n", - [Name, Msg, To, State]); -print_event(Dev, {noreply, State}, Name) -> - io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]); -print_event(Dev, Event, Name) -> - io:format(Dev, "*DBG* ~p dbg ~p~n", [Name, Event]). - - -%%% --------------------------------------------------- -%%% Terminate the server. -%%% --------------------------------------------------- - -terminate(Reason, Msg, #gs2_state { name = Name, - mod = Mod, - state = State, - debug = Debug }) -> - case catch Mod:terminate(Reason, State) of - {'EXIT', R} -> - error_info(R, Reason, Name, Msg, State, Debug), - exit(R); - _ -> - case Reason of - normal -> - exit(normal); - shutdown -> - exit(shutdown); - {shutdown,_}=Shutdown -> - exit(Shutdown); - _ -> - error_info(Reason, undefined, Name, Msg, State, Debug), - exit(Reason) - end - end. - -error_info(_Reason, _RootCause, application_controller, _Msg, _State, _Debug) -> - %% OTP-5811 Don't send an error report if it's the system process - %% application_controller which is terminating - let init take care - %% of it instead - ok; -error_info(Reason, RootCause, Name, Msg, State, Debug) -> - Reason1 = error_reason(Reason), - Fmt = - "** Generic server ~p terminating~n" - "** Last message in was ~p~n" - "** When Server state == ~p~n" - "** Reason for termination == ~n** ~p~n", - case RootCause of - undefined -> format(Fmt, [Name, Msg, State, Reason1]); - _ -> format(Fmt ++ "** In 'terminate' callback " - "with reason ==~n** ~p~n", - [Name, Msg, State, Reason1, - error_reason(RootCause)]) - end, - sys:print_log(Debug), - ok. - -error_reason({undef,[{M,F,A}|MFAs]} = Reason) -> - case code:is_loaded(M) of - false -> {'module could not be loaded',[{M,F,A}|MFAs]}; - _ -> case erlang:function_exported(M, F, length(A)) of - true -> Reason; - false -> {'function not exported',[{M,F,A}|MFAs]} - end - end; -error_reason(Reason) -> - Reason. - -%%% --------------------------------------------------- -%%% Misc. functions. -%%% --------------------------------------------------- - -opt(Op, [{Op, Value}|_]) -> - {ok, Value}; -opt(Op, [_|Options]) -> - opt(Op, Options); -opt(_, []) -> - false. - -debug_options(Name, Opts) -> - case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) - end. - -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). - -dbg_opts(Name, Opts) -> - case catch sys:debug_options(Opts) of - {'EXIT',_} -> - format("~p: ignoring erroneous debug options - ~p~n", - [Name, Opts]), - []; - Dbg -> - Dbg - end. - -get_proc_name(Pid) when is_pid(Pid) -> - Pid; -get_proc_name({local, Name}) -> - case process_info(self(), registered_name) of - {registered_name, Name} -> - Name; - {registered_name, _Name} -> - exit(process_not_registered); - [] -> - exit(process_not_registered) - end; -get_proc_name({global, Name}) -> - case global:safe_whereis_name(Name) of - undefined -> - exit(process_not_registered_globally); - Pid when Pid =:= self() -> - Name; - _Pid -> - exit(process_not_registered_globally) - end. - -get_parent() -> - case get('$ancestors') of - [Parent | _] when is_pid(Parent)-> - Parent; - [Parent | _] when is_atom(Parent)-> - name_to_pid(Parent); - _ -> - exit(process_was_not_started_by_proc_lib) - end. - -name_to_pid(Name) -> - case whereis(Name) of - undefined -> - case global:safe_whereis_name(Name) of - undefined -> - exit(could_not_find_registerd_name); - Pid -> - Pid - end; - Pid -> - Pid - end. - -find_prioritisers(GS2State = #gs2_state { mod = Mod }) -> - PrioriCall = function_exported_or_default( - Mod, 'prioritise_call', 3, - fun (_Msg, _From, _State) -> 0 end), - PrioriCast = function_exported_or_default(Mod, 'prioritise_cast', 2, - fun (_Msg, _State) -> 0 end), - PrioriInfo = function_exported_or_default(Mod, 'prioritise_info', 2, - fun (_Msg, _State) -> 0 end), - GS2State #gs2_state { prioritise_call = PrioriCall, - prioritise_cast = PrioriCast, - prioritise_info = PrioriInfo }. - -function_exported_or_default(Mod, Fun, Arity, Default) -> - case erlang:function_exported(Mod, Fun, Arity) of - true -> case Arity of - 2 -> fun (Msg, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end; - 3 -> fun (Msg, From, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, From, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end - end; - false -> Default - end. - -%%----------------------------------------------------------------- -%% Status information -%%----------------------------------------------------------------- -format_status(Opt, StatusData) -> - [PDict, SysState, Parent, Debug, - #gs2_state{name = Name, state = State, mod = Mod, queue = Queue}] = - StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), - Log = sys:get_debug(log, Debug, []), - Specfic = - case erlang:function_exported(Mod, format_status, 2) of - true -> case catch Mod:format_status(Opt, [PDict, State]) of - {'EXIT', _} -> [{data, [{"State", State}]}]; - Else -> Else - end; - _ -> [{data, [{"State", State}]}] - end, - [{header, Header}, - {data, [{"Status", SysState}, - {"Parent", Parent}, - {"Logged events", Log}, - {"Queued messages", priority_queue:to_list(Queue)}]} | - Specfic]. diff --git a/src/gm.erl b/src/gm.erl deleted file mode 100644 index 8cf22581..00000000 --- a/src/gm.erl +++ /dev/null @@ -1,1328 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm). - -%% Guaranteed Multicast -%% ==================== -%% -%% This module provides the ability to create named groups of -%% processes to which members can be dynamically added and removed, -%% and for messages to be broadcast within the group that are -%% guaranteed to reach all members of the group during the lifetime of -%% the message. The lifetime of a message is defined as being, at a -%% minimum, the time from which the message is first sent to any -%% member of the group, up until the time at which it is known by the -%% member who published the message that the message has reached all -%% group members. -%% -%% The guarantee given is that provided a message, once sent, makes it -%% to members who do not all leave the group, the message will -%% continue to propagate to all group members. -%% -%% Another way of stating the guarantee is that if member P publishes -%% messages m and m', then for all members P', if P' is a member of -%% the group prior to the publication of m, and P' receives m', then -%% P' will receive m. -%% -%% Note that only local-ordering is enforced: i.e. if member P sends -%% message m and then message m', then for-all members P', if P' -%% receives m and m', then they will receive m' after m. Causality -%% ordering is _not_ enforced. I.e. if member P receives message m -%% and as a result publishes message m', there is no guarantee that -%% other members P' will receive m before m'. -%% -%% -%% API Use -%% ------- -%% -%% Mnesia must be started. Use the idempotent create_tables/0 function -%% to create the tables required. -%% -%% start_link/3 -%% Provide the group name, the callback module name, and any arguments -%% you wish to be passed into the callback module's functions. The -%% joined/2 function will be called when we have joined the group, -%% with the arguments passed to start_link and a list of the current -%% members of the group. See the comments in behaviour_info/1 below -%% for further details of the callback functions. -%% -%% leave/1 -%% Provide the Pid. Removes the Pid from the group. The callback -%% terminate/2 function will be called. -%% -%% broadcast/2 -%% Provide the Pid and a Message. The message will be sent to all -%% members of the group as per the guarantees given above. This is a -%% cast and the function call will return immediately. There is no -%% guarantee that the message will reach any member of the group. -%% -%% confirmed_broadcast/2 -%% Provide the Pid and a Message. As per broadcast/2 except that this -%% is a call, not a cast, and only returns 'ok' once the Message has -%% reached every member of the group. Do not call -%% confirmed_broadcast/2 directly from the callback module otherwise -%% you will deadlock the entire group. -%% -%% group_members/1 -%% Provide the Pid. Returns a list of the current group members. -%% -%% -%% Implementation Overview -%% ----------------------- -%% -%% One possible means of implementation would be a fan-out from the -%% sender to every member of the group. This would require that the -%% group is fully connected, and, in the event that the original -%% sender of the message disappears from the group before the message -%% has made it to every member of the group, raises questions as to -%% who is responsible for sending on the message to new group members. -%% In particular, the issue is with [ Pid ! Msg || Pid <- Members ] - -%% if the sender dies part way through, who is responsible for -%% ensuring that the remaining Members receive the Msg? In the event -%% that within the group, messages sent are broadcast from a subset of -%% the members, the fan-out arrangement has the potential to -%% substantially impact the CPU and network workload of such members, -%% as such members would have to accommodate the cost of sending each -%% message to every group member. -%% -%% Instead, if the members of the group are arranged in a chain, then -%% it becomes easier to reason about who within the group has received -%% each message and who has not. It eases issues of responsibility: in -%% the event of a group member disappearing, the nearest upstream -%% member of the chain is responsible for ensuring that messages -%% continue to propagate down the chain. It also results in equal -%% distribution of sending and receiving workload, even if all -%% messages are being sent from just a single group member. This -%% configuration has the further advantage that it is not necessary -%% for every group member to know of every other group member, and -%% even that a group member does not have to be accessible from all -%% other group members. -%% -%% Performance is kept high by permitting pipelining and all -%% communication between joined group members is asynchronous. In the -%% chain A -> B -> C -> D, if A sends a message to the group, it will -%% not directly contact C or D. However, it must know that D receives -%% the message (in addition to B and C) before it can consider the -%% message fully sent. A simplistic implementation would require that -%% D replies to C, C replies to B and B then replies to A. This would -%% result in a propagation delay of twice the length of the chain. It -%% would also require, in the event of the failure of C, that D knows -%% to directly contact B and issue the necessary replies. Instead, the -%% chain forms a ring: D sends the message on to A: D does not -%% distinguish A as the sender, merely as the next member (downstream) -%% within the chain (which has now become a ring). When A receives -%% from D messages that A sent, it knows that all members have -%% received the message. However, the message is not dead yet: if C -%% died as B was sending to C, then B would need to detect the death -%% of C and forward the message on to D instead: thus every node has -%% to remember every message published until it is told that it can -%% forget about the message. This is essential not just for dealing -%% with failure of members, but also for the addition of new members. -%% -%% Thus once A receives the message back again, it then sends to B an -%% acknowledgement for the message, indicating that B can now forget -%% about the message. B does so, and forwards the ack to C. C forgets -%% the message, and forwards the ack to D, which forgets the message -%% and finally forwards the ack back to A. At this point, A takes no -%% further action: the message and its acknowledgement have made it to -%% every member of the group. The message is now dead, and any new -%% member joining the group at this point will not receive the -%% message. -%% -%% We therefore have two roles: -%% -%% 1. The sender, who upon receiving their own messages back, must -%% then send out acknowledgements, and upon receiving their own -%% acknowledgements back perform no further action. -%% -%% 2. The other group members who upon receiving messages and -%% acknowledgements must update their own internal state accordingly -%% (the sending member must also do this in order to be able to -%% accommodate failures), and forwards messages on to their downstream -%% neighbours. -%% -%% -%% Implementation: It gets trickier -%% -------------------------------- -%% -%% Chain A -> B -> C -> D -%% -%% A publishes a message which B receives. A now dies. B and D will -%% detect the death of A, and will link up, thus the chain is now B -> -%% C -> D. B forwards A's message on to C, who forwards it to D, who -%% forwards it to B. Thus B is now responsible for A's messages - both -%% publications and acknowledgements that were in flight at the point -%% at which A died. Even worse is that this is transitive: after B -%% forwards A's message to C, B dies as well. Now C is not only -%% responsible for B's in-flight messages, but is also responsible for -%% A's in-flight messages. -%% -%% Lemma 1: A member can only determine which dead members they have -%% inherited responsibility for if there is a total ordering on the -%% conflicting additions and subtractions of members from the group. -%% -%% Consider the simultaneous death of B and addition of B' that -%% transitions a chain from A -> B -> C to A -> B' -> C. Either B' or -%% C is responsible for in-flight messages from B. It is easy to -%% ensure that at least one of them thinks they have inherited B, but -%% if we do not ensure that exactly one of them inherits B, then we -%% could have B' converting publishes to acks, which then will crash C -%% as C does not believe it has issued acks for those messages. -%% -%% More complex scenarios are easy to concoct: A -> B -> C -> D -> E -%% becoming A -> C' -> E. Who has inherited which of B, C and D? -%% -%% However, for non-conflicting membership changes, only a partial -%% ordering is required. For example, A -> B -> C becoming A -> A' -> -%% B. The addition of A', between A and B can have no conflicts with -%% the death of C: it is clear that A has inherited C's messages. -%% -%% For ease of implementation, we adopt the simple solution, of -%% imposing a total order on all membership changes. -%% -%% On the death of a member, it is ensured the dead member's -%% neighbours become aware of the death, and the upstream neighbour -%% now sends to its new downstream neighbour its state, including the -%% messages pending acknowledgement. The downstream neighbour can then -%% use this to calculate which publishes and acknowledgements it has -%% missed out on, due to the death of its old upstream. Thus the -%% downstream can catch up, and continues the propagation of messages -%% through the group. -%% -%% Lemma 2: When a member is joining, it must synchronously -%% communicate with its upstream member in order to receive its -%% starting state atomically with its addition to the group. -%% -%% New members must start with the same state as their nearest -%% upstream neighbour. This ensures that it is not surprised by -%% acknowledgements they are sent, and that should their downstream -%% neighbour die, they are able to send the correct state to their new -%% downstream neighbour to ensure it can catch up. Thus in the -%% transition A -> B -> C becomes A -> A' -> B -> C becomes A -> A' -> -%% C, A' must start with the state of A, so that it can send C the -%% correct state when B dies, allowing C to detect any missed -%% messages. -%% -%% If A' starts by adding itself to the group membership, A could then -%% die, without A' having received the necessary state from A. This -%% would leave A' responsible for in-flight messages from A, but -%% having the least knowledge of all, of those messages. Thus A' must -%% start by synchronously calling A, which then immediately sends A' -%% back its state. A then adds A' to the group. If A dies at this -%% point then A' will be able to see this (as A' will fail to appear -%% in the group membership), and thus A' will ignore the state it -%% receives from A, and will simply repeat the process, trying to now -%% join downstream from some other member. This ensures that should -%% the upstream die as soon as the new member has been joined, the new -%% member is guaranteed to receive the correct state, allowing it to -%% correctly process messages inherited due to the death of its -%% upstream neighbour. -%% -%% The canonical definition of the group membership is held by a -%% distributed database. Whilst this allows the total ordering of -%% changes to be achieved, it is nevertheless undesirable to have to -%% query this database for the current view, upon receiving each -%% message. Instead, we wish for members to be able to cache a view of -%% the group membership, which then requires a cache invalidation -%% mechanism. Each member maintains its own view of the group -%% membership. Thus when the group's membership changes, members may -%% need to become aware of such changes in order to be able to -%% accurately process messages they receive. Because of the -%% requirement of a total ordering of conflicting membership changes, -%% it is not possible to use the guaranteed broadcast mechanism to -%% communicate these changes: to achieve the necessary ordering, it -%% would be necessary for such messages to be published by exactly one -%% member, which can not be guaranteed given that such a member could -%% die. -%% -%% The total ordering we enforce on membership changes gives rise to a -%% view version number: every change to the membership creates a -%% different view, and the total ordering permits a simple -%% monotonically increasing view version number. -%% -%% Lemma 3: If a message is sent from a member that holds view version -%% N, it can be correctly processed by any member receiving the -%% message with a view version >= N. -%% -%% Initially, let us suppose that each view contains the ordering of -%% every member that was ever part of the group. Dead members are -%% marked as such. Thus we have a ring of members, some of which are -%% dead, and are thus inherited by the nearest alive downstream -%% member. -%% -%% In the chain A -> B -> C, all three members initially have view -%% version 1, which reflects reality. B publishes a message, which is -%% forward by C to A. B now dies, which A notices very quickly. Thus A -%% updates the view, creating version 2. It now forwards B's -%% publication, sending that message to its new downstream neighbour, -%% C. This happens before C is aware of the death of B. C must become -%% aware of the view change before it interprets the message its -%% received, otherwise it will fail to learn of the death of B, and -%% thus will not realise it has inherited B's messages (and will -%% likely crash). -%% -%% Thus very simply, we have that each subsequent view contains more -%% information than the preceding view. -%% -%% However, to avoid the views growing indefinitely, we need to be -%% able to delete members which have died _and_ for which no messages -%% are in-flight. This requires that upon inheriting a dead member, we -%% know the last publication sent by the dead member (this is easy: we -%% inherit a member because we are the nearest downstream member which -%% implies that we know at least as much than everyone else about the -%% publications of the dead member), and we know the earliest message -%% for which the acknowledgement is still in flight. -%% -%% In the chain A -> B -> C, when B dies, A will send to C its state -%% (as C is the new downstream from A), allowing C to calculate which -%% messages it has missed out on (described above). At this point, C -%% also inherits B's messages. If that state from A also includes the -%% last message published by B for which an acknowledgement has been -%% seen, then C knows exactly which further acknowledgements it must -%% receive (also including issuing acknowledgements for publications -%% still in-flight that it receives), after which it is known there -%% are no more messages in flight for B, thus all evidence that B was -%% ever part of the group can be safely removed from the canonical -%% group membership. -%% -%% Thus, for every message that a member sends, it includes with that -%% message its view version. When a member receives a message it will -%% update its view from the canonical copy, should its view be older -%% than the view version included in the message it has received. -%% -%% The state held by each member therefore includes the messages from -%% each publisher pending acknowledgement, the last publication seen -%% from that publisher, and the last acknowledgement from that -%% publisher. In the case of the member's own publications or -%% inherited members, this last acknowledgement seen state indicates -%% the last acknowledgement retired, rather than sent. -%% -%% -%% Proof sketch -%% ------------ -%% -%% We need to prove that with the provided operational semantics, we -%% can never reach a state that is not well formed from a well-formed -%% starting state. -%% -%% Operational semantics (small step): straight-forward message -%% sending, process monitoring, state updates. -%% -%% Well formed state: dead members inherited by exactly one non-dead -%% member; for every entry in anyone's pending-acks, either (the -%% publication of the message is in-flight downstream from the member -%% and upstream from the publisher) or (the acknowledgement of the -%% message is in-flight downstream from the publisher and upstream -%% from the member). -%% -%% Proof by induction on the applicable operational semantics. -%% -%% -%% Related work -%% ------------ -%% -%% The ring configuration and double traversal of messages around the -%% ring is similar (though developed independently) to the LCR -%% protocol by [Levy 2008]. However, LCR differs in several -%% ways. Firstly, by using vector clocks, it enforces a total order of -%% message delivery, which is unnecessary for our purposes. More -%% significantly, it is built on top of a "group communication system" -%% which performs the group management functions, taking -%% responsibility away from the protocol as to how to cope with safely -%% adding and removing members. When membership changes do occur, the -%% protocol stipulates that every member must perform communication -%% with every other member of the group, to ensure all outstanding -%% deliveries complete, before the entire group transitions to the new -%% view. This, in total, requires two sets of all-to-all synchronous -%% communications. -%% -%% This is not only rather inefficient, but also does not explain what -%% happens upon the failure of a member during this process. It does -%% though entirely avoid the need for inheritance of responsibility of -%% dead members that our protocol incorporates. -%% -%% In [Marandi et al 2010], a Paxos-based protocol is described. This -%% work explicitly focuses on the efficiency of communication. LCR -%% (and our protocol too) are more efficient, but at the cost of -%% higher latency. The Ring-Paxos protocol is itself built on top of -%% IP-multicast, which rules it out for many applications where -%% point-to-point communication is all that can be required. They also -%% have an excellent related work section which I really ought to -%% read... -%% -%% -%% [Levy 2008] The Complexity of Reliable Distributed Storage, 2008. -%% [Marandi et al 2010] Ring Paxos: A High-Throughput Atomic Broadcast -%% Protocol - - --behaviour(gen_server2). - --export([create_tables/0, start_link/3, leave/1, broadcast/2, - confirmed_broadcast/2, group_members/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3, prioritise_info/2]). - --export([behaviour_info/1]). - --export([table_definitions/0]). - --define(GROUP_TABLE, gm_group). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(SETS, ordsets). --define(DICT, orddict). - --record(state, - { self, - left, - right, - group_name, - module, - view, - pub_count, - members_state, - callback_args, - confirms - }). - --record(gm_group, { name, version, members }). - --record(view_member, { id, aliases, left, right }). - --record(member, { pending_ack, last_pub, last_ack }). - --define(TABLE, {?GROUP_TABLE, [{record_name, gm_group}, - {attributes, record_info(fields, gm_group)}]}). --define(TABLE_MATCH, {match, #gm_group { _ = '_' }}). - --define(TAG, '$gm'). - --ifdef(use_specs). - --export_type([group_name/0]). - --type(group_name() :: any()). - --spec(create_tables/0 :: () -> 'ok'). --spec(start_link/3 :: (group_name(), atom(), any()) -> - {'ok', pid()} | {'error', any()}). --spec(leave/1 :: (pid()) -> 'ok'). --spec(broadcast/2 :: (pid(), any()) -> 'ok'). --spec(confirmed_broadcast/2 :: (pid(), any()) -> 'ok'). --spec(group_members/1 :: (pid()) -> [pid()]). - --endif. - -behaviour_info(callbacks) -> - [ - %% The joined, members_changed and handle_msg callbacks can all - %% return any of the following terms: - %% - %% 'ok' - the callback function returns normally - %% - %% {'stop', Reason} - the callback indicates the member should - %% stop with reason Reason and should leave the group. - %% - %% {'become', Module, Args} - the callback indicates that the - %% callback module should be changed to Module and that the - %% callback functions should now be passed the arguments - %% Args. This allows the callback module to be dynamically - %% changed. - - %% Called when we've successfully joined the group. Supplied with - %% Args provided in start_link, plus current group members. - {joined, 2}, - - %% Supplied with Args provided in start_link, the list of new - %% members and the list of members previously known to us that - %% have since died. Note that if a member joins and dies very - %% quickly, it's possible that we will never see that member - %% appear in either births or deaths. However we are guaranteed - %% that (1) we will see a member joining either in the births - %% here, or in the members passed to joined/2 before receiving - %% any messages from it; and (2) we will not see members die that - %% we have not seen born (or supplied in the members to - %% joined/2). - {members_changed, 3}, - - %% Supplied with Args provided in start_link, the sender, and the - %% message. This does get called for messages injected by this - %% member, however, in such cases, there is no special - %% significance of this invocation: it does not indicate that the - %% message has made it to any other members, let alone all other - %% members. - {handle_msg, 3}, - - %% Called on gm member termination as per rules in gen_server, - %% with the Args provided in start_link plus the termination - %% Reason. - {terminate, 2} - ]; -behaviour_info(_Other) -> - undefined. - -create_tables() -> - create_tables([?TABLE]). - -create_tables([]) -> - ok; -create_tables([{Table, Attributes} | Tables]) -> - case mnesia:create_table(Table, Attributes) of - {atomic, ok} -> create_tables(Tables); - {aborted, {already_exists, gm_group}} -> create_tables(Tables); - Err -> Err - end. - -table_definitions() -> - {Name, Attributes} = ?TABLE, - [{Name, [?TABLE_MATCH | Attributes]}]. - -start_link(GroupName, Module, Args) -> - gen_server2:start_link(?MODULE, [GroupName, Module, Args], []). - -leave(Server) -> - gen_server2:cast(Server, leave). - -broadcast(Server, Msg) -> - gen_server2:cast(Server, {broadcast, Msg}). - -confirmed_broadcast(Server, Msg) -> - gen_server2:call(Server, {confirmed_broadcast, Msg}, infinity). - -group_members(Server) -> - gen_server2:call(Server, group_members, infinity). - - -init([GroupName, Module, Args]) -> - random:seed(now()), - gen_server2:cast(self(), join), - Self = self(), - {ok, #state { self = Self, - left = {Self, undefined}, - right = {Self, undefined}, - group_name = GroupName, - module = Module, - view = undefined, - pub_count = 0, - members_state = undefined, - callback_args = Args, - confirms = queue:new() }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - - -handle_call({confirmed_broadcast, _Msg}, _From, - State = #state { members_state = undefined }) -> - reply(not_joined, State); - -handle_call({confirmed_broadcast, Msg}, _From, - State = #state { self = Self, - right = {Self, undefined}, - module = Module, - callback_args = Args }) -> - handle_callback_result({Module:handle_msg(Args, Self, Msg), ok, State}); - -handle_call({confirmed_broadcast, Msg}, From, State) -> - internal_broadcast(Msg, From, State); - -handle_call(group_members, _From, - State = #state { members_state = undefined }) -> - reply(not_joined, State); - -handle_call(group_members, _From, State = #state { view = View }) -> - reply(alive_view_members(View), State); - -handle_call({add_on_right, _NewMember}, _From, - State = #state { members_state = undefined }) -> - reply(not_ready, State); - -handle_call({add_on_right, NewMember}, _From, - State = #state { self = Self, - group_name = GroupName, - view = View, - members_state = MembersState, - module = Module, - callback_args = Args }) -> - Group = record_new_member_in_group( - GroupName, Self, NewMember, - fun (Group1) -> - View1 = group_to_view(Group1), - ok = send_right(NewMember, View1, - {catchup, Self, prepare_members_state( - MembersState)}) - end), - View2 = group_to_view(Group), - State1 = check_neighbours(State #state { view = View2 }), - Result = callback_view_changed(Args, Module, View, View2), - handle_callback_result({Result, {ok, Group}, State1}). - - -handle_cast({?TAG, ReqVer, Msg}, - State = #state { view = View, - group_name = GroupName, - module = Module, - callback_args = Args }) -> - {Result, State1} = - case needs_view_update(ReqVer, View) of - true -> - View1 = group_to_view(read_group(GroupName)), - {callback_view_changed(Args, Module, View, View1), - check_neighbours(State #state { view = View1 })}; - false -> - {ok, State} - end, - handle_callback_result( - if_callback_success( - Result, fun handle_msg_true/3, fun handle_msg_false/3, Msg, State1)); - -handle_cast({broadcast, _Msg}, State = #state { members_state = undefined }) -> - noreply(State); - -handle_cast({broadcast, Msg}, - State = #state { self = Self, - right = {Self, undefined}, - module = Module, - callback_args = Args }) -> - handle_callback_result({Module:handle_msg(Args, Self, Msg), State}); - -handle_cast({broadcast, Msg}, State) -> - internal_broadcast(Msg, none, State); - -handle_cast(join, State = #state { self = Self, - group_name = GroupName, - members_state = undefined, - module = Module, - callback_args = Args }) -> - View = join_group(Self, GroupName), - MembersState = - case alive_view_members(View) of - [Self] -> blank_member_state(); - _ -> undefined - end, - State1 = check_neighbours(State #state { view = View, - members_state = MembersState }), - handle_callback_result( - {Module:joined(Args, all_known_members(View)), State1}); - -handle_cast(leave, State) -> - {stop, normal, State}. - - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #state { self = Self, - left = Left, - right = Right, - group_name = GroupName, - view = View, - module = Module, - callback_args = Args, - confirms = Confirms }) -> - Member = case {Left, Right} of - {{Member1, MRef}, _} -> Member1; - {_, {Member1, MRef}} -> Member1; - _ -> undefined - end, - case Member of - undefined -> - noreply(State); - _ -> - View1 = - group_to_view(record_dead_member_in_group(Member, GroupName)), - State1 = State #state { view = View1 }, - {Result, State2} = - case alive_view_members(View1) of - [Self] -> - maybe_erase_aliases( - State1 #state { - members_state = blank_member_state(), - confirms = purge_confirms(Confirms) }); - _ -> - %% here we won't be pointing out any deaths: - %% the concern is that there maybe births - %% which we'd otherwise miss. - {callback_view_changed(Args, Module, View, View1), - State1} - end, - handle_callback_result({Result, check_neighbours(State2)}) - end. - - -terminate(Reason, #state { module = Module, - callback_args = Args }) -> - Module:terminate(Args, Reason). - - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -prioritise_info({'DOWN', _MRef, process, _Pid, _Reason}, _State) -> 1; -prioritise_info(_ , _State) -> 0. - - -handle_msg(check_neighbours, State) -> - %% no-op - it's already been done by the calling handle_cast - {ok, State}; - -handle_msg({catchup, Left, MembersStateLeft}, - State = #state { self = Self, - left = {Left, _MRefL}, - right = {Right, _MRefR}, - view = View, - members_state = undefined }) -> - ok = send_right(Right, View, {catchup, Self, MembersStateLeft}), - MembersStateLeft1 = build_members_state(MembersStateLeft), - {ok, State #state { members_state = MembersStateLeft1 }}; - -handle_msg({catchup, Left, MembersStateLeft}, - State = #state { self = Self, - left = {Left, _MRefL}, - view = View, - members_state = MembersState }) - when MembersState =/= undefined -> - MembersStateLeft1 = build_members_state(MembersStateLeft), - AllMembers = lists:usort(?DICT:fetch_keys(MembersState) ++ - ?DICT:fetch_keys(MembersStateLeft1)), - {MembersState1, Activity} = - lists:foldl( - fun (Id, MembersStateActivity) -> - #member { pending_ack = PALeft, last_ack = LA } = - find_member_or_blank(Id, MembersStateLeft1), - with_member_acc( - fun (#member { pending_ack = PA } = Member, Activity1) -> - case is_member_alias(Id, Self, View) of - true -> - {_AcksInFlight, Pubs, _PA1} = - find_prefix_common_suffix(PALeft, PA), - {Member #member { last_ack = LA }, - activity_cons(Id, pubs_from_queue(Pubs), - [], Activity1)}; - false -> - {Acks, _Common, Pubs} = - find_prefix_common_suffix(PA, PALeft), - {Member, - activity_cons(Id, pubs_from_queue(Pubs), - acks_from_queue(Acks), - Activity1)} - end - end, Id, MembersStateActivity) - end, {MembersState, activity_nil()}, AllMembers), - handle_msg({activity, Left, activity_finalise(Activity)}, - State #state { members_state = MembersState1 }); - -handle_msg({catchup, _NotLeft, _MembersState}, State) -> - {ok, State}; - -handle_msg({activity, Left, Activity}, - State = #state { self = Self, - left = {Left, _MRefL}, - view = View, - members_state = MembersState, - confirms = Confirms }) - when MembersState =/= undefined -> - {MembersState1, {Confirms1, Activity1}} = - lists:foldl( - fun ({Id, Pubs, Acks}, MembersStateConfirmsActivity) -> - with_member_acc( - fun (Member = #member { pending_ack = PA, - last_pub = LP, - last_ack = LA }, - {Confirms2, Activity2}) -> - case is_member_alias(Id, Self, View) of - true -> - {ToAck, PA1} = - find_common(queue_from_pubs(Pubs), PA, - queue:new()), - LA1 = last_ack(Acks, LA), - AckNums = acks_from_queue(ToAck), - Confirms3 = maybe_confirm( - Self, Id, Confirms2, AckNums), - {Member #member { pending_ack = PA1, - last_ack = LA1 }, - {Confirms3, - activity_cons( - Id, [], AckNums, Activity2)}}; - false -> - PA1 = apply_acks(Acks, join_pubs(PA, Pubs)), - LA1 = last_ack(Acks, LA), - LP1 = last_pub(Pubs, LP), - {Member #member { pending_ack = PA1, - last_pub = LP1, - last_ack = LA1 }, - {Confirms2, - activity_cons(Id, Pubs, Acks, Activity2)}} - end - end, Id, MembersStateConfirmsActivity) - end, {MembersState, {Confirms, activity_nil()}}, Activity), - State1 = State #state { members_state = MembersState1, - confirms = Confirms1 }, - Activity3 = activity_finalise(Activity1), - {Result, State2} = maybe_erase_aliases(State1), - ok = maybe_send_activity(Activity3, State2), - if_callback_success( - Result, fun activity_true/3, fun activity_false/3, Activity3, State2); - -handle_msg({activity, _NotLeft, _Activity}, State) -> - {ok, State}. - - -noreply(State) -> - {noreply, State, hibernate}. - -reply(Reply, State) -> - {reply, Reply, State, hibernate}. - -internal_broadcast(Msg, From, State = #state { self = Self, - pub_count = PubCount, - members_state = MembersState, - module = Module, - confirms = Confirms, - callback_args = Args }) -> - PubMsg = {PubCount, Msg}, - Activity = activity_cons(Self, [PubMsg], [], activity_nil()), - ok = maybe_send_activity(activity_finalise(Activity), State), - MembersState1 = - with_member( - fun (Member = #member { pending_ack = PA }) -> - Member #member { pending_ack = queue:in(PubMsg, PA) } - end, Self, MembersState), - Confirms1 = case From of - none -> Confirms; - _ -> queue:in({PubCount, From}, Confirms) - end, - handle_callback_result({Module:handle_msg(Args, Self, Msg), - State #state { pub_count = PubCount + 1, - members_state = MembersState1, - confirms = Confirms1 }}). - - -%% --------------------------------------------------------------------------- -%% View construction and inspection -%% --------------------------------------------------------------------------- - -needs_view_update(ReqVer, {Ver, _View}) -> - Ver < ReqVer. - -view_version({Ver, _View}) -> - Ver. - -is_member_alive({dead, _Member}) -> false; -is_member_alive(_) -> true. - -is_member_alias(Self, Self, _View) -> - true; -is_member_alias(Member, Self, View) -> - ?SETS:is_element(Member, - ((fetch_view_member(Self, View)) #view_member.aliases)). - -dead_member_id({dead, Member}) -> Member. - -store_view_member(VMember = #view_member { id = Id }, {Ver, View}) -> - {Ver, ?DICT:store(Id, VMember, View)}. - -with_view_member(Fun, View, Id) -> - store_view_member(Fun(fetch_view_member(Id, View)), View). - -fetch_view_member(Id, {_Ver, View}) -> - ?DICT:fetch(Id, View). - -find_view_member(Id, {_Ver, View}) -> - ?DICT:find(Id, View). - -blank_view(Ver) -> - {Ver, ?DICT:new()}. - -alive_view_members({_Ver, View}) -> - ?DICT:fetch_keys(View). - -all_known_members({_Ver, View}) -> - ?DICT:fold( - fun (Member, #view_member { aliases = Aliases }, Acc) -> - ?SETS:to_list(Aliases) ++ [Member | Acc] - end, [], View). - -group_to_view(#gm_group { members = Members, version = Ver }) -> - Alive = lists:filter(fun is_member_alive/1, Members), - [_|_] = Alive, %% ASSERTION - can't have all dead members - add_aliases(link_view(Alive ++ Alive ++ Alive, blank_view(Ver)), Members). - -link_view([Left, Middle, Right | Rest], View) -> - case find_view_member(Middle, View) of - error -> - link_view( - [Middle, Right | Rest], - store_view_member(#view_member { id = Middle, - aliases = ?SETS:new(), - left = Left, - right = Right }, View)); - {ok, _} -> - View - end; -link_view(_, View) -> - View. - -add_aliases(View, Members) -> - Members1 = ensure_alive_suffix(Members), - {EmptyDeadSet, View1} = - lists:foldl( - fun (Member, {DeadAcc, ViewAcc}) -> - case is_member_alive(Member) of - true -> - {?SETS:new(), - with_view_member( - fun (VMember = - #view_member { aliases = Aliases }) -> - VMember #view_member { - aliases = ?SETS:union(Aliases, DeadAcc) } - end, ViewAcc, Member)}; - false -> - {?SETS:add_element(dead_member_id(Member), DeadAcc), - ViewAcc} - end - end, {?SETS:new(), View}, Members1), - 0 = ?SETS:size(EmptyDeadSet), %% ASSERTION - View1. - -ensure_alive_suffix(Members) -> - queue:to_list(ensure_alive_suffix1(queue:from_list(Members))). - -ensure_alive_suffix1(MembersQ) -> - {{value, Member}, MembersQ1} = queue:out_r(MembersQ), - case is_member_alive(Member) of - true -> MembersQ; - false -> ensure_alive_suffix1(queue:in_r(Member, MembersQ1)) - end. - - -%% --------------------------------------------------------------------------- -%% View modification -%% --------------------------------------------------------------------------- - -join_group(Self, GroupName) -> - join_group(Self, GroupName, read_group(GroupName)). - -join_group(Self, GroupName, {error, not_found}) -> - join_group(Self, GroupName, prune_or_create_group(Self, GroupName)); -join_group(Self, _GroupName, #gm_group { members = [Self] } = Group) -> - group_to_view(Group); -join_group(Self, GroupName, #gm_group { members = Members } = Group) -> - case lists:member(Self, Members) of - true -> - group_to_view(Group); - false -> - case lists:filter(fun is_member_alive/1, Members) of - [] -> - join_group(Self, GroupName, - prune_or_create_group(Self, GroupName)); - Alive -> - Left = lists:nth(random:uniform(length(Alive)), Alive), - Handler = - fun () -> - join_group( - Self, GroupName, - record_dead_member_in_group(Left, GroupName)) - end, - try - case gen_server2:call( - Left, {add_on_right, Self}, infinity) of - {ok, Group1} -> group_to_view(Group1); - not_ready -> join_group(Self, GroupName) - end - catch - exit:{R, _} - when R =:= noproc; R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} - when R =:= nodedown; R =:= shutdown -> - Handler() - end - end - end. - -read_group(GroupName) -> - case mnesia:dirty_read(?GROUP_TABLE, GroupName) of - [] -> {error, not_found}; - [Group] -> Group - end. - -prune_or_create_group(Self, GroupName) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> GroupNew = #gm_group { name = GroupName, - members = [Self], - version = 0 }, - case mnesia:read(?GROUP_TABLE, GroupName) of - [] -> - mnesia:write(GroupNew), - GroupNew; - [Group1 = #gm_group { members = Members }] -> - case lists:any(fun is_member_alive/1, Members) of - true -> Group1; - false -> mnesia:write(GroupNew), - GroupNew - end - end - end), - Group. - -record_dead_member_in_group(Member, GroupName) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> [Group1 = #gm_group { members = Members, version = Ver }] = - mnesia:read(?GROUP_TABLE, GroupName), - case lists:splitwith( - fun (Member1) -> Member1 =/= Member end, Members) of - {_Members1, []} -> %% not found - already recorded dead - Group1; - {Members1, [Member | Members2]} -> - Members3 = Members1 ++ [{dead, Member} | Members2], - Group2 = Group1 #gm_group { members = Members3, - version = Ver + 1 }, - mnesia:write(Group2), - Group2 - end - end), - Group. - -record_new_member_in_group(GroupName, Left, NewMember, Fun) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> - [#gm_group { members = Members, version = Ver } = Group1] = - mnesia:read(?GROUP_TABLE, GroupName), - {Prefix, [Left | Suffix]} = - lists:splitwith(fun (M) -> M =/= Left end, Members), - Members1 = Prefix ++ [Left, NewMember | Suffix], - Group2 = Group1 #gm_group { members = Members1, - version = Ver + 1 }, - ok = Fun(Group2), - mnesia:write(Group2), - Group2 - end), - Group. - -erase_members_in_group(Members, GroupName) -> - DeadMembers = [{dead, Id} || Id <- Members], - {atomic, Group} = - mnesia:sync_transaction( - fun () -> - [Group1 = #gm_group { members = [_|_] = Members1, - version = Ver }] = - mnesia:read(?GROUP_TABLE, GroupName), - case Members1 -- DeadMembers of - Members1 -> Group1; - Members2 -> Group2 = - Group1 #gm_group { members = Members2, - version = Ver + 1 }, - mnesia:write(Group2), - Group2 - end - end), - Group. - -maybe_erase_aliases(State = #state { self = Self, - group_name = GroupName, - view = View, - members_state = MembersState, - module = Module, - callback_args = Args }) -> - #view_member { aliases = Aliases } = fetch_view_member(Self, View), - {Erasable, MembersState1} - = ?SETS:fold( - fun (Id, {ErasableAcc, MembersStateAcc} = Acc) -> - #member { last_pub = LP, last_ack = LA } = - find_member_or_blank(Id, MembersState), - case can_erase_view_member(Self, Id, LA, LP) of - true -> {[Id | ErasableAcc], - erase_member(Id, MembersStateAcc)}; - false -> Acc - end - end, {[], MembersState}, Aliases), - State1 = State #state { members_state = MembersState1 }, - case Erasable of - [] -> {ok, State1}; - _ -> View1 = group_to_view( - erase_members_in_group(Erasable, GroupName)), - {callback_view_changed(Args, Module, View, View1), - State1 #state { view = View1 }} - end. - -can_erase_view_member(Self, Self, _LA, _LP) -> false; -can_erase_view_member(_Self, _Id, N, N) -> true; -can_erase_view_member(_Self, _Id, _LA, _LP) -> false. - - -%% --------------------------------------------------------------------------- -%% View monitoring and maintanence -%% --------------------------------------------------------------------------- - -ensure_neighbour(_Ver, Self, {Self, undefined}, Self) -> - {Self, undefined}; -ensure_neighbour(Ver, Self, {Self, undefined}, RealNeighbour) -> - ok = gen_server2:cast(RealNeighbour, {?TAG, Ver, check_neighbours}), - {RealNeighbour, maybe_monitor(RealNeighbour, Self)}; -ensure_neighbour(_Ver, _Self, {RealNeighbour, MRef}, RealNeighbour) -> - {RealNeighbour, MRef}; -ensure_neighbour(Ver, Self, {RealNeighbour, MRef}, Neighbour) -> - true = erlang:demonitor(MRef), - Msg = {?TAG, Ver, check_neighbours}, - ok = gen_server2:cast(RealNeighbour, Msg), - ok = case Neighbour of - Self -> ok; - _ -> gen_server2:cast(Neighbour, Msg) - end, - {Neighbour, maybe_monitor(Neighbour, Self)}. - -maybe_monitor(Self, Self) -> - undefined; -maybe_monitor(Other, _Self) -> - erlang:monitor(process, Other). - -check_neighbours(State = #state { self = Self, - left = Left, - right = Right, - view = View }) -> - #view_member { left = VLeft, right = VRight } - = fetch_view_member(Self, View), - Ver = view_version(View), - Left1 = ensure_neighbour(Ver, Self, Left, VLeft), - Right1 = ensure_neighbour(Ver, Self, Right, VRight), - State1 = State #state { left = Left1, right = Right1 }, - ok = maybe_send_catchup(Right, State1), - State1. - -maybe_send_catchup(Right, #state { right = Right }) -> - ok; -maybe_send_catchup(_Right, #state { self = Self, - right = {Self, undefined} }) -> - ok; -maybe_send_catchup(_Right, #state { members_state = undefined }) -> - ok; -maybe_send_catchup(_Right, #state { self = Self, - right = {Right, _MRef}, - view = View, - members_state = MembersState }) -> - send_right(Right, View, - {catchup, Self, prepare_members_state(MembersState)}). - - -%% --------------------------------------------------------------------------- -%% Catch_up delta detection -%% --------------------------------------------------------------------------- - -find_prefix_common_suffix(A, B) -> - {Prefix, A1} = find_prefix(A, B, queue:new()), - {Common, Suffix} = find_common(A1, B, queue:new()), - {Prefix, Common, Suffix}. - -%% Returns the elements of A that occur before the first element of B, -%% plus the remainder of A. -find_prefix(A, B, Prefix) -> - case {queue:out(A), queue:out(B)} of - {{{value, Val}, _A1}, {{value, Val}, _B1}} -> - {Prefix, A}; - {{empty, A1}, {{value, _A}, _B1}} -> - {Prefix, A1}; - {{{value, {NumA, _MsgA} = Val}, A1}, - {{value, {NumB, _MsgB}}, _B1}} when NumA < NumB -> - find_prefix(A1, B, queue:in(Val, Prefix)); - {_, {empty, _B1}} -> - {A, Prefix} %% Prefix well be empty here - end. - -%% A should be a prefix of B. Returns the commonality plus the -%% remainder of B. -find_common(A, B, Common) -> - case {queue:out(A), queue:out(B)} of - {{{value, Val}, A1}, {{value, Val}, B1}} -> - find_common(A1, B1, queue:in(Val, Common)); - {{empty, _A}, _} -> - {Common, B} - end. - - -%% --------------------------------------------------------------------------- -%% Members helpers -%% --------------------------------------------------------------------------- - -with_member(Fun, Id, MembersState) -> - store_member( - Id, Fun(find_member_or_blank(Id, MembersState)), MembersState). - -with_member_acc(Fun, Id, {MembersState, Acc}) -> - {MemberState, Acc1} = Fun(find_member_or_blank(Id, MembersState), Acc), - {store_member(Id, MemberState, MembersState), Acc1}. - -find_member_or_blank(Id, MembersState) -> - case ?DICT:find(Id, MembersState) of - {ok, Result} -> Result; - error -> blank_member() - end. - -erase_member(Id, MembersState) -> - ?DICT:erase(Id, MembersState). - -blank_member() -> - #member { pending_ack = queue:new(), last_pub = -1, last_ack = -1 }. - -blank_member_state() -> - ?DICT:new(). - -store_member(Id, MemberState, MembersState) -> - ?DICT:store(Id, MemberState, MembersState). - -prepare_members_state(MembersState) -> - ?DICT:to_list(MembersState). - -build_members_state(MembersStateList) -> - ?DICT:from_list(MembersStateList). - - -%% --------------------------------------------------------------------------- -%% Activity assembly -%% --------------------------------------------------------------------------- - -activity_nil() -> - queue:new(). - -activity_cons(_Id, [], [], Tail) -> - Tail; -activity_cons(Sender, Pubs, Acks, Tail) -> - queue:in({Sender, Pubs, Acks}, Tail). - -activity_finalise(Activity) -> - queue:to_list(Activity). - -maybe_send_activity([], _State) -> - ok; -maybe_send_activity(Activity, #state { self = Self, - right = {Right, _MRefR}, - view = View }) -> - send_right(Right, View, {activity, Self, Activity}). - -send_right(Right, View, Msg) -> - ok = gen_server2:cast(Right, {?TAG, view_version(View), Msg}). - -callback(Args, Module, Activity) -> - lists:foldl( - fun ({Id, Pubs, _Acks}, ok) -> - lists:foldl(fun ({_PubNum, Pub}, ok) -> - Module:handle_msg(Args, Id, Pub); - (_, Error) -> - Error - end, ok, Pubs); - (_, Error) -> - Error - end, ok, Activity). - -callback_view_changed(Args, Module, OldView, NewView) -> - OldMembers = all_known_members(OldView), - NewMembers = all_known_members(NewView), - Births = NewMembers -- OldMembers, - Deaths = OldMembers -- NewMembers, - case {Births, Deaths} of - {[], []} -> ok; - _ -> Module:members_changed(Args, Births, Deaths) - end. - -handle_callback_result({Result, State}) -> - if_callback_success( - Result, fun no_reply_true/3, fun no_reply_false/3, undefined, State); -handle_callback_result({Result, Reply, State}) -> - if_callback_success( - Result, fun reply_true/3, fun reply_false/3, Reply, State). - -no_reply_true (_Result, _Undefined, State) -> noreply(State). -no_reply_false({stop, Reason}, _Undefined, State) -> {stop, Reason, State}. - -reply_true (_Result, Reply, State) -> reply(Reply, State). -reply_false({stop, Reason}, Reply, State) -> {stop, Reason, Reply, State}. - -handle_msg_true (_Result, Msg, State) -> handle_msg(Msg, State). -handle_msg_false(Result, _Msg, State) -> {Result, State}. - -activity_true(_Result, Activity, State = #state { module = Module, - callback_args = Args }) -> - {callback(Args, Module, Activity), State}. -activity_false(Result, _Activity, State) -> - {Result, State}. - -if_callback_success(ok, True, _False, Arg, State) -> - True(ok, Arg, State); -if_callback_success( - {become, Module, Args} = Result, True, _False, Arg, State) -> - True(Result, Arg, State #state { module = Module, - callback_args = Args }); -if_callback_success({stop, _Reason} = Result, _True, False, Arg, State) -> - False(Result, Arg, State). - -maybe_confirm(_Self, _Id, Confirms, []) -> - Confirms; -maybe_confirm(Self, Self, Confirms, [PubNum | PubNums]) -> - case queue:out(Confirms) of - {empty, _Confirms} -> - Confirms; - {{value, {PubNum, From}}, Confirms1} -> - gen_server2:reply(From, ok), - maybe_confirm(Self, Self, Confirms1, PubNums); - {{value, {PubNum1, _From}}, _Confirms} when PubNum1 > PubNum -> - maybe_confirm(Self, Self, Confirms, PubNums) - end; -maybe_confirm(_Self, _Id, Confirms, _PubNums) -> - Confirms. - -purge_confirms(Confirms) -> - [gen_server2:reply(From, ok) || {_PubNum, From} <- queue:to_list(Confirms)], - queue:new(). - - -%% --------------------------------------------------------------------------- -%% Msg transformation -%% --------------------------------------------------------------------------- - -acks_from_queue(Q) -> - [PubNum || {PubNum, _Msg} <- queue:to_list(Q)]. - -pubs_from_queue(Q) -> - queue:to_list(Q). - -queue_from_pubs(Pubs) -> - queue:from_list(Pubs). - -apply_acks([], Pubs) -> - Pubs; -apply_acks(List, Pubs) -> - {_, Pubs1} = queue:split(length(List), Pubs), - Pubs1. - -join_pubs(Q, []) -> Q; -join_pubs(Q, Pubs) -> queue:join(Q, queue_from_pubs(Pubs)). - -last_ack([], LA) -> - LA; -last_ack(List, LA) -> - LA1 = lists:last(List), - true = LA1 > LA, %% ASSERTION - LA1. - -last_pub([], LP) -> - LP; -last_pub(List, LP) -> - {PubNum, _Msg} = lists:last(List), - true = PubNum > LP, %% ASSERTION - PubNum. diff --git a/src/gm_soak_test.erl b/src/gm_soak_test.erl deleted file mode 100644 index 1f8832a6..00000000 --- a/src/gm_soak_test.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_soak_test). - --export([test/0]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - -%% --------------------------------------------------------------------------- -%% Soak test -%% --------------------------------------------------------------------------- - -get_state() -> - get(state). - -with_state(Fun) -> - put(state, Fun(get_state())). - -inc() -> - case 1 + get(count) of - 100000 -> Now = os:timestamp(), - Start = put(ts, Now), - Diff = timer:now_diff(Now, Start), - Rate = 100000 / (Diff / 1000000), - io:format("~p seeing ~p msgs/sec~n", [self(), Rate]), - put(count, 0); - N -> put(count, N) - end. - -joined([], Members) -> - io:format("Joined ~p (~p members)~n", [self(), length(Members)]), - put(state, dict:from_list([{Member, empty} || Member <- Members])), - put(count, 0), - put(ts, os:timestamp()), - ok. - -members_changed([], Births, Deaths) -> - with_state( - fun (State) -> - State1 = - lists:foldl( - fun (Born, StateN) -> - false = dict:is_key(Born, StateN), - dict:store(Born, empty, StateN) - end, State, Births), - lists:foldl( - fun (Died, StateN) -> - true = dict:is_key(Died, StateN), - dict:store(Died, died, StateN) - end, State1, Deaths) - end), - ok. - -handle_msg([], From, {test_msg, Num}) -> - inc(), - with_state( - fun (State) -> - ok = case dict:find(From, State) of - {ok, died} -> - exit({{from, From}, - {received_posthumous_delivery, Num}}); - {ok, empty} -> ok; - {ok, Num} -> ok; - {ok, Num1} when Num < Num1 -> - exit({{from, From}, - {duplicate_delivery_of, Num1}, - {expecting, Num}}); - {ok, Num1} -> - exit({{from, From}, - {missing_delivery_of, Num}, - {received_early, Num1}}); - error -> - exit({{from, From}, - {received_premature_delivery, Num}}) - end, - dict:store(From, Num + 1, State) - end), - ok. - -terminate([], Reason) -> - io:format("Left ~p (~p)~n", [self(), Reason]), - ok. - -spawn_member() -> - spawn_link( - fun () -> - random:seed(now()), - %% start up delay of no more than 10 seconds - timer:sleep(random:uniform(10000)), - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, []), - Start = random:uniform(10000), - send_loop(Pid, Start, Start + random:uniform(10000)), - gm:leave(Pid), - spawn_more() - end). - -spawn_more() -> - [spawn_member() || _ <- lists:seq(1, 4 - random:uniform(4))]. - -send_loop(_Pid, Target, Target) -> - ok; -send_loop(Pid, Count, Target) when Target > Count -> - case random:uniform(3) of - 3 -> gm:confirmed_broadcast(Pid, {test_msg, Count}); - _ -> gm:broadcast(Pid, {test_msg, Count}) - end, - timer:sleep(random:uniform(5) - 1), %% sleep up to 4 ms - send_loop(Pid, Count + 1, Target). - -test() -> - ok = gm:create_tables(), - spawn_member(), - spawn_member(). diff --git a/src/gm_tests.erl b/src/gm_tests.erl deleted file mode 100644 index ca0ffd64..00000000 --- a/src/gm_tests.erl +++ /dev/null @@ -1,182 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_tests). - --export([test_join_leave/0, - test_broadcast/0, - test_confirmed_broadcast/0, - test_member_death/0, - test_receive_in_order/0, - all_tests/0]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - --define(RECEIVE_OR_THROW(Body, Bool, Error), - receive Body -> - true = Bool, - passed - after 1000 -> - throw(Error) - end). - -joined(Pid, Members) -> - Pid ! {joined, self(), Members}, - ok. - -members_changed(Pid, Births, Deaths) -> - Pid ! {members_changed, self(), Births, Deaths}, - ok. - -handle_msg(Pid, From, Msg) -> - Pid ! {msg, self(), From, Msg}, - ok. - -terminate(Pid, Reason) -> - Pid ! {termination, self(), Reason}, - ok. - -%% --------------------------------------------------------------------------- -%% Functional tests -%% --------------------------------------------------------------------------- - -all_tests() -> - passed = test_join_leave(), - passed = test_broadcast(), - passed = test_confirmed_broadcast(), - passed = test_member_death(), - passed = test_receive_in_order(), - passed. - -test_join_leave() -> - with_two_members(fun (_Pid, _Pid2) -> passed end). - -test_broadcast() -> - test_broadcast(fun gm:broadcast/2). - -test_confirmed_broadcast() -> - test_broadcast(fun gm:confirmed_broadcast/2). - -test_member_death() -> - with_two_members( - fun (Pid, Pid2) -> - {ok, Pid3} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid3, [Pid, Pid2, Pid3], - timeout_joining_gm_group_3), - passed = receive_birth(Pid, Pid3, timeout_waiting_for_birth_3_1), - passed = receive_birth(Pid2, Pid3, timeout_waiting_for_birth_3_2), - - unlink(Pid3), - exit(Pid3, kill), - - %% Have to do some broadcasts to ensure that all members - %% find out about the death. - passed = (test_broadcast_fun(fun gm:confirmed_broadcast/2))( - Pid, Pid2), - - passed = receive_death(Pid, Pid3, timeout_waiting_for_death_3_1), - passed = receive_death(Pid2, Pid3, timeout_waiting_for_death_3_2), - - passed - end). - -test_receive_in_order() -> - with_two_members( - fun (Pid, Pid2) -> - Numbers = lists:seq(1,1000), - [begin ok = gm:broadcast(Pid, N), ok = gm:broadcast(Pid2, N) end - || N <- Numbers], - passed = receive_numbers( - Pid, Pid, {timeout_for_msgs, Pid, Pid}, Numbers), - passed = receive_numbers( - Pid, Pid2, {timeout_for_msgs, Pid, Pid2}, Numbers), - passed = receive_numbers( - Pid2, Pid, {timeout_for_msgs, Pid2, Pid}, Numbers), - passed = receive_numbers( - Pid2, Pid2, {timeout_for_msgs, Pid2, Pid2}, Numbers), - passed - end). - -test_broadcast(Fun) -> - with_two_members(test_broadcast_fun(Fun)). - -test_broadcast_fun(Fun) -> - fun (Pid, Pid2) -> - ok = Fun(Pid, magic_message), - passed = receive_or_throw({msg, Pid, Pid, magic_message}, - timeout_waiting_for_msg), - passed = receive_or_throw({msg, Pid2, Pid, magic_message}, - timeout_waiting_for_msg) - end. - -with_two_members(Fun) -> - ok = gm:create_tables(), - - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid, [Pid], timeout_joining_gm_group_1), - - {ok, Pid2} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid2, [Pid, Pid2], timeout_joining_gm_group_2), - passed = receive_birth(Pid, Pid2, timeout_waiting_for_birth_2), - - passed = Fun(Pid, Pid2), - - ok = gm:leave(Pid), - passed = receive_death(Pid2, Pid, timeout_waiting_for_death_1), - passed = - receive_termination(Pid, normal, timeout_waiting_for_termination_1), - - ok = gm:leave(Pid2), - passed = - receive_termination(Pid2, normal, timeout_waiting_for_termination_2), - - receive X -> throw({unexpected_message, X}) - after 0 -> passed - end. - -receive_or_throw(Pattern, Error) -> - ?RECEIVE_OR_THROW(Pattern, true, Error). - -receive_birth(From, Born, Error) -> - ?RECEIVE_OR_THROW({members_changed, From, Birth, Death}, - ([Born] == Birth) andalso ([] == Death), - Error). - -receive_death(From, Died, Error) -> - ?RECEIVE_OR_THROW({members_changed, From, Birth, Death}, - ([] == Birth) andalso ([Died] == Death), - Error). - -receive_joined(From, Members, Error) -> - ?RECEIVE_OR_THROW({joined, From, Members1}, - lists:usort(Members) == lists:usort(Members1), - Error). - -receive_termination(From, Reason, Error) -> - ?RECEIVE_OR_THROW({termination, From, Reason1}, - Reason == Reason1, - Error). - -receive_numbers(_Pid, _Sender, _Error, []) -> - passed; -receive_numbers(Pid, Sender, Error, [N | Numbers]) -> - ?RECEIVE_OR_THROW({msg, Pid, Sender, M}, - M == N, - Error), - receive_numbers(Pid, Sender, Error, Numbers). diff --git a/src/pg_local.erl b/src/pg_local.erl deleted file mode 100644 index c9c3a3a7..00000000 --- a/src/pg_local.erl +++ /dev/null @@ -1,213 +0,0 @@ -%% This file is a copy of pg2.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) Process groups are node-local only. -%% -%% 2) Groups are created/deleted implicitly. -%% -%% 3) 'join' and 'leave' are asynchronous. -%% -%% 4) the type specs of the exported non-callback functions have been -%% extracted into a separate, guarded section, and rewritten in -%% old-style spec syntax, for better compatibility with older -%% versions of Erlang/OTP. The remaining type specs have been -%% removed. - -%% All modifications are (C) 2010-2011 VMware, Inc. - -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(pg_local). - --export([join/2, leave/2, get_members/1]). --export([sync/0]). %% intended for testing only; not part of official API --export([start/0, start_link/0, init/1, handle_call/3, handle_cast/2, - handle_info/2, terminate/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(name() :: term()). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(join/2 :: (name(), pid()) -> 'ok'). --spec(leave/2 :: (name(), pid()) -> 'ok'). --spec(get_members/1 :: (name()) -> [pid()]). - --spec(sync/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%%% As of R13B03 monitors are used instead of links. - -%%% -%%% Exported functions -%%% - -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). - -start() -> - ensure_started(). - -join(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {join, Name, Pid}). - -leave(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {leave, Name, Pid}). - -get_members(Name) -> - ensure_started(), - group_members(Name). - -sync() -> - ensure_started(), - gen_server:call(?MODULE, sync, infinity). - -%%% -%%% Callback functions from gen_server -%%% - --record(state, {}). - -init([]) -> - pg_local_table = ets:new(pg_local_table, [ordered_set, protected, named_table]), - {ok, #state{}}. - -handle_call(sync, _From, S) -> - {reply, ok, S}; - -handle_call(Request, From, S) -> - error_logger:warning_msg("The pg_local server received an unexpected message:\n" - "handle_call(~p, ~p, _)\n", - [Request, From]), - {noreply, S}. - -handle_cast({join, Name, Pid}, S) -> - join_group(Name, Pid), - {noreply, S}; -handle_cast({leave, Name, Pid}, S) -> - leave_group(Name, Pid), - {noreply, S}; -handle_cast(_, S) -> - {noreply, S}. - -handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S) -> - member_died(MonitorRef), - {noreply, S}; -handle_info(_, S) -> - {noreply, S}. - -terminate(_Reason, _S) -> - true = ets:delete(pg_local_table), - ok. - -%%% -%%% Local functions -%%% - -%%% One ETS table, pg_local_table, is used for bookkeeping. The type of the -%%% table is ordered_set, and the fast matching of partially -%%% instantiated keys is used extensively. -%%% -%%% {{ref, Pid}, MonitorRef, Counter} -%%% {{ref, MonitorRef}, Pid} -%%% Each process has one monitor. Counter is incremented when the -%%% Pid joins some group. -%%% {{member, Name, Pid}, _} -%%% Pid is a member of group Name, GroupCounter is incremented when the -%%% Pid joins the group Name. -%%% {{pid, Pid, Name}} -%%% Pid is a member of group Name. - -member_died(Ref) -> - [{{ref, Ref}, Pid}] = ets:lookup(pg_local_table, {ref, Ref}), - Names = member_groups(Pid), - _ = [leave_group(Name, P) || - Name <- Names, - P <- member_in_group(Pid, Name)], - ok. - -join_group(Name, Pid) -> - Ref_Pid = {ref, Pid}, - try _ = ets:update_counter(pg_local_table, Ref_Pid, {3, +1}) - catch _:_ -> - Ref = erlang:monitor(process, Pid), - true = ets:insert(pg_local_table, {Ref_Pid, Ref, 1}), - true = ets:insert(pg_local_table, {{ref, Ref}, Pid}) - end, - Member_Name_Pid = {member, Name, Pid}, - try _ = ets:update_counter(pg_local_table, Member_Name_Pid, {2, +1}) - catch _:_ -> - true = ets:insert(pg_local_table, {Member_Name_Pid, 1}), - true = ets:insert(pg_local_table, {{pid, Pid, Name}}) - end. - -leave_group(Name, Pid) -> - Member_Name_Pid = {member, Name, Pid}, - try ets:update_counter(pg_local_table, Member_Name_Pid, {2, -1}) of - N -> - if - N =:= 0 -> - true = ets:delete(pg_local_table, {pid, Pid, Name}), - true = ets:delete(pg_local_table, Member_Name_Pid); - true -> - ok - end, - Ref_Pid = {ref, Pid}, - case ets:update_counter(pg_local_table, Ref_Pid, {3, -1}) of - 0 -> - [{Ref_Pid,Ref,0}] = ets:lookup(pg_local_table, Ref_Pid), - true = ets:delete(pg_local_table, {ref, Ref}), - true = ets:delete(pg_local_table, Ref_Pid), - true = erlang:demonitor(Ref, [flush]), - ok; - _ -> - ok - end - catch _:_ -> - ok - end. - -group_members(Name) -> - [P || - [P, N] <- ets:match(pg_local_table, {{member, Name, '$1'},'$2'}), - _ <- lists:seq(1, N)]. - -member_in_group(Pid, Name) -> - [{{member, Name, Pid}, N}] = ets:lookup(pg_local_table, {member, Name, Pid}), - lists:duplicate(N, Pid). - -member_groups(Pid) -> - [Name || [Name] <- ets:match(pg_local_table, {{pid, Pid, '$1'}})]. - -ensure_started() -> - case whereis(?MODULE) of - undefined -> - C = {pg_local, {?MODULE, start_link, []}, permanent, - 16#ffffffff, worker, [?MODULE]}, - supervisor:start_child(kernel_safe_sup, C); - PgLocalPid -> - {ok, PgLocalPid} - end. diff --git a/src/priority_queue.erl b/src/priority_queue.erl deleted file mode 100644 index 4a94b24b..00000000 --- a/src/priority_queue.erl +++ /dev/null @@ -1,176 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% Priority queues have essentially the same interface as ordinary -%% queues, except that a) there is an in/3 that takes a priority, and -%% b) we have only implemented the core API we need. -%% -%% Priorities should be integers - the higher the value the higher the -%% priority - but we don't actually check that. -%% -%% in/2 inserts items with priority 0. -%% -%% We optimise the case where a priority queue is being used just like -%% an ordinary queue. When that is the case we represent the priority -%% queue as an ordinary queue. We could just call into the 'queue' -%% module for that, but for efficiency we implement the relevant -%% functions directly in here, thus saving on inter-module calls and -%% eliminating a level of boxing. -%% -%% When the queue contains items with non-zero priorities, it is -%% represented as a sorted kv list with the inverted Priority as the -%% key and an ordinary queue as the value. Here again we use our own -%% ordinary queue implemention for efficiency, often making recursive -%% calls into the same function knowing that ordinary queues represent -%% a base case. - - --module(priority_queue). - --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(priority() :: integer()). --type(squeue() :: {queue, [any()], [any()]}). --type(pqueue() :: squeue() | {pqueue, [{priority(), squeue()}]}). - --spec(new/0 :: () -> pqueue()). --spec(is_queue/1 :: (any()) -> boolean()). --spec(is_empty/1 :: (pqueue()) -> boolean()). --spec(len/1 :: (pqueue()) -> non_neg_integer()). --spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). --spec(in/2 :: (any(), pqueue()) -> pqueue()). --spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> - {queue, [], []}. - -is_queue({queue, R, F}) when is_list(R), is_list(F) -> - true; -is_queue({pqueue, Queues}) when is_list(Queues) -> - lists:all(fun ({P, Q}) -> is_integer(P) andalso is_queue(Q) end, - Queues); -is_queue(_) -> - false. - -is_empty({queue, [], []}) -> - true; -is_empty(_) -> - false. - -len({queue, R, F}) when is_list(R), is_list(F) -> - length(R) + length(F); -len({pqueue, Queues}) -> - lists:sum([len(Q) || {_, Q} <- Queues]). - -to_list({queue, In, Out}) when is_list(In), is_list(Out) -> - [{0, V} || V <- Out ++ lists:reverse(In, [])]; -to_list({pqueue, Queues}) -> - [{-P, V} || {P, Q} <- Queues, {0, V} <- to_list(Q)]. - -in(Item, Q) -> - in(Item, 0, Q). - -in(X, 0, {queue, [_] = In, []}) -> - {queue, [X], In}; -in(X, 0, {queue, In, Out}) when is_list(In), is_list(Out) -> - {queue, [X|In], Out}; -in(X, Priority, _Q = {queue, [], []}) -> - in(X, Priority, {pqueue, []}); -in(X, Priority, Q = {queue, _, _}) -> - in(X, Priority, {pqueue, [{0, Q}]}); -in(X, Priority, {pqueue, Queues}) -> - P = -Priority, - {pqueue, case lists:keysearch(P, 1, Queues) of - {value, {_, Q}} -> - lists:keyreplace(P, 1, Queues, {P, in(X, Q)}); - false -> - lists:keysort(1, [{P, {queue, [X], []}} | Queues]) - end}. - -out({queue, [], []} = Q) -> - {empty, Q}; -out({queue, [V], []}) -> - {{value, V}, {queue, [], []}}; -out({queue, [Y|In], []}) -> - [V|Out] = lists:reverse(In, []), - {{value, V}, {queue, [Y], Out}}; -out({queue, In, [V]}) when is_list(In) -> - {{value,V}, r2f(In)}; -out({queue, In,[V|Out]}) when is_list(In) -> - {{value, V}, {queue, In, Out}}; -out({pqueue, [{P, Q} | Queues]}) -> - {R, Q1} = out(Q), - NewQ = case is_empty(Q1) of - true -> case Queues of - [] -> {queue, [], []}; - [{0, OnlyQ}] -> OnlyQ; - [_|_] -> {pqueue, Queues} - end; - false -> {pqueue, [{P, Q1} | Queues]} - end, - {R, NewQ}. - -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - -r2f([]) -> {queue, [], []}; -r2f([_] = R) -> {queue, [], R}; -r2f([X,Y]) -> {queue, [X], [Y]}; -r2f([X,Y|R]) -> {queue, [X,Y], lists:reverse(R, [])}. diff --git a/src/rabbit.erl b/src/rabbit.erl deleted file mode 100644 index c9a929ae..00000000 --- a/src/rabbit.erl +++ /dev/null @@ -1,510 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit). - --behaviour(application). - --export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, - rotate_logs/1]). - --export([start/2, stop/1]). - --export([log_location/1]). - -%%--------------------------------------------------------------------------- -%% Boot steps. --export([maybe_insert_default_data/0, boot_delegate/0]). - --rabbit_boot_step({codec_correctness_check, - [{description, "codec correctness check"}, - {mfa, {rabbit_binary_generator, - check_empty_content_body_frame_size, - []}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({database, - [{mfa, {rabbit_mnesia, init, []}}, - {requires, file_handle_cache}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({file_handle_cache, - [{description, "file handle cache server"}, - {mfa, {rabbit_sup, start_restartable_child, - [file_handle_cache]}}, - {enables, worker_pool}]}). - --rabbit_boot_step({worker_pool, - [{description, "worker pool"}, - {mfa, {rabbit_sup, start_child, [worker_pool_sup]}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({external_infrastructure, - [{description, "external infrastructure ready"}]}). - --rabbit_boot_step({rabbit_registry, - [{description, "plugin registry"}, - {mfa, {rabbit_sup, start_child, - [rabbit_registry]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_log, - [{description, "logging server"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_log]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_event, - [{description, "statistics event manager"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_event]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({kernel_ready, - [{description, "kernel ready"}, - {requires, external_infrastructure}]}). - --rabbit_boot_step({rabbit_alarm, - [{description, "alarm handler"}, - {mfa, {rabbit_alarm, start, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_memory_monitor, - [{description, "memory monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_memory_monitor]}}, - {requires, rabbit_alarm}, - {enables, core_initialized}]}). - --rabbit_boot_step({guid_generator, - [{description, "guid generator"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_guid]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({delegate_sup, - [{description, "cluster delegate"}, - {mfa, {rabbit, boot_delegate, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_node_monitor, - [{description, "node monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_node_monitor]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({core_initialized, - [{description, "core initialized"}, - {requires, kernel_ready}]}). - --rabbit_boot_step({empty_db_check, - [{description, "empty DB check"}, - {mfa, {?MODULE, maybe_insert_default_data, []}}, - {requires, core_initialized}, - {enables, routing_ready}]}). - --rabbit_boot_step({exchange_recovery, - [{description, "exchange recovery"}, - {mfa, {rabbit_exchange, recover, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({queue_sup_queue_recovery, - [{description, "queue supervisor and queue recovery"}, - {mfa, {rabbit_amqqueue, start, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({routing_ready, - [{description, "message delivery logic ready"}, - {requires, core_initialized}]}). - --rabbit_boot_step({log_relay, - [{description, "error log relay"}, - {mfa, {rabbit_error_logger, boot, []}}, - {requires, routing_ready}, - {enables, networking}]}). - --rabbit_boot_step({direct_client, - [{mfa, {rabbit_direct, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({networking, - [{mfa, {rabbit_networking, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({notify_cluster, - [{description, "notify cluster nodes"}, - {mfa, {rabbit_node_monitor, notify_cluster, []}}, - {requires, networking}]}). - -%%--------------------------------------------------------------------------- - --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --define(APPS, [os_mon, mnesia, rabbit]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(file_suffix() :: binary()). -%% this really should be an abstract type --type(log_location() :: 'tty' | 'undefined' | file:filename()). - --spec(prepare/0 :: () -> 'ok'). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_halt/0 :: () -> 'ok'). --spec(rotate_logs/1 :: (file_suffix()) -> rabbit_types:ok_or_error(any())). --spec(status/0 :: - () -> [{running_applications, [{atom(), string(), string()}]} | - {nodes, [{rabbit_mnesia:node_type(), [node()]}]} | - {running_nodes, [node()]}]). --spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). - --spec(maybe_insert_default_data/0 :: () -> 'ok'). --spec(boot_delegate/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -prepare() -> - ok = ensure_working_log_handlers(). - -start() -> - try - ok = prepare(), - ok = rabbit_misc:start_applications(?APPS) - after - %%give the error loggers some time to catch up - timer:sleep(100) - end. - -stop() -> - ok = rabbit_misc:stop_applications(?APPS). - -stop_and_halt() -> - try - stop() - after - init:stop() - end, - ok. - -status() -> - [{pid, list_to_integer(os:getpid())}, - {running_applications, application:which_applications()}] ++ - rabbit_mnesia:status(). - -rotate_logs(BinarySuffix) -> - Suffix = binary_to_list(BinarySuffix), - log_rotation_result(rotate_logs(log_location(kernel), - Suffix, - rabbit_error_logger_file_h), - rotate_logs(log_location(sasl), - Suffix, - rabbit_sasl_report_file_h)). - -%%-------------------------------------------------------------------- - -start(normal, []) -> - case erts_version_check() of - ok -> - {ok, SupPid} = rabbit_sup:start_link(), - true = register(rabbit, self()), - - print_banner(), - [ok = run_boot_step(Step) || Step <- boot_steps()], - io:format("~nbroker running~n"), - {ok, SupPid}; - Error -> - Error - end. - -stop(_State) -> - terminated_ok = error_logger:delete_report_handler(rabbit_error_logger), - ok = rabbit_alarm:stop(), - ok = case rabbit_mnesia:is_clustered() of - true -> rabbit_amqqueue:on_node_down(node()); - false -> rabbit_mnesia:empty_ram_only_tables() - end, - ok. - -%%--------------------------------------------------------------------------- - -erts_version_check() -> - FoundVer = erlang:system_info(version), - case rabbit_misc:version_compare(?ERTS_MINIMUM, FoundVer, lte) of - true -> ok; - false -> {error, {erlang_version_too_old, - {found, FoundVer}, {required, ?ERTS_MINIMUM}}} - end. - -boot_error(Format, Args) -> - io:format("BOOT ERROR: " ++ Format, Args), - error_logger:error_msg(Format, Args), - timer:sleep(1000), - exit({?MODULE, failure_during_boot}). - -run_boot_step({StepName, Attributes}) -> - Description = case lists:keysearch(description, 1, Attributes) of - {value, {_, D}} -> D; - false -> StepName - end, - case [MFA || {mfa, MFA} <- Attributes] of - [] -> - io:format("-- ~s~n", [Description]); - MFAs -> - io:format("starting ~-60s ...", [Description]), - [try - apply(M,F,A) - catch - _:Reason -> boot_error("FAILED~nReason: ~p~nStacktrace: ~p~n", - [Reason, erlang:get_stacktrace()]) - end || {M,F,A} <- MFAs], - io:format("done~n"), - ok - end. - -boot_steps() -> - sort_boot_steps(rabbit_misc:all_module_attributes(rabbit_boot_step)). - -vertices(_Module, Steps) -> - [{StepName, {StepName, Atts}} || {StepName, Atts} <- Steps]. - -edges(_Module, Steps) -> - [case Key of - requires -> {StepName, OtherStep}; - enables -> {OtherStep, StepName} - end || {StepName, Atts} <- Steps, - {Key, OtherStep} <- Atts, - Key =:= requires orelse Key =:= enables]. - -sort_boot_steps(UnsortedSteps) -> - case rabbit_misc:build_acyclic_graph(fun vertices/2, fun edges/2, - UnsortedSteps) of - {ok, G} -> - %% Use topological sort to find a consistent ordering (if - %% there is one, otherwise fail). - SortedSteps = lists:reverse( - [begin - {StepName, Step} = digraph:vertex(G, StepName), - Step - end || StepName <- digraph_utils:topsort(G)]), - digraph:delete(G), - %% Check that all mentioned {M,F,A} triples are exported. - case [{StepName, {M,F,A}} || - {StepName, Attributes} <- SortedSteps, - {mfa, {M,F,A}} <- Attributes, - not erlang:function_exported(M, F, length(A))] of - [] -> SortedSteps; - MissingFunctions -> boot_error( - "Boot step functions not exported: ~p~n", - [MissingFunctions]) - end; - {error, {vertex, duplicate, StepName}} -> - boot_error("Duplicate boot step name: ~w~n", [StepName]); - {error, {edge, Reason, From, To}} -> - boot_error( - "Could not add boot step dependency of ~w on ~w:~n~s", - [To, From, - case Reason of - {bad_vertex, V} -> - io_lib:format("Boot step not registered: ~w~n", [V]); - {bad_edge, [First | Rest]} -> - [io_lib:format("Cyclic dependency: ~w", [First]), - [io_lib:format(" depends on ~w", [Next]) || - Next <- Rest], - io_lib:format(" depends on ~w~n", [First])] - end]) - end. - -%%--------------------------------------------------------------------------- - -log_location(Type) -> - case application:get_env(Type, case Type of - kernel -> error_logger; - sasl -> sasl_error_logger - end) of - {ok, {file, File}} -> File; - {ok, false} -> undefined; - {ok, tty} -> tty; - {ok, silent} -> undefined; - {ok, Bad} -> throw({error, {cannot_log_to_file, Bad}}); - _ -> undefined - end. - -app_location() -> - {ok, Application} = application:get_application(), - filename:absname(code:where_is_file(atom_to_list(Application) ++ ".app")). - -home_dir() -> - case init:get_argument(home) of - {ok, [[Home]]} -> Home; - Other -> Other - end. - -config_files() -> - case init:get_argument(config) of - {ok, Files} -> [filename:absname( - filename:rootname(File, ".config") ++ ".config") || - File <- Files]; - error -> [] - end. - -%%--------------------------------------------------------------------------- - -print_banner() -> - {ok, Product} = application:get_key(id), - {ok, Version} = application:get_key(vsn), - ProductLen = string:len(Product), - io:format("~n" - "+---+ +---+~n" - "| | | |~n" - "| | | |~n" - "| | | |~n" - "| +---+ +-------+~n" - "| |~n" - "| ~s +---+ |~n" - "| | | |~n" - "| ~s +---+ |~n" - "| |~n" - "+-------------------+~n" - "~s~n~s~n~s~n~n", - [Product, string:right([$v|Version], ProductLen), - ?PROTOCOL_VERSION, - ?COPYRIGHT_MESSAGE, ?INFORMATION_MESSAGE]), - Settings = [{"node", node()}, - {"app descriptor", app_location()}, - {"home dir", home_dir()}, - {"config file(s)", config_files()}, - {"cookie hash", rabbit_misc:cookie_hash()}, - {"log", log_location(kernel)}, - {"sasl log", log_location(sasl)}, - {"database dir", rabbit_mnesia:dir()}, - {"erlang version", erlang:system_info(version)}], - DescrLen = 1 + lists:max([length(K) || {K, _V} <- Settings]), - Format = fun (K, V) -> - io:format("~-" ++ integer_to_list(DescrLen) ++ "s: ~s~n", - [K, V]) - end, - lists:foreach(fun ({"config file(s)" = K, []}) -> - Format(K, "(none)"); - ({"config file(s)" = K, [V0 | Vs]}) -> - Format(K, V0), [Format("", V) || V <- Vs]; - ({K, V}) -> - Format(K, V) - end, Settings), - io:nl(). - -ensure_working_log_handlers() -> - Handlers = gen_event:which_handlers(error_logger), - ok = ensure_working_log_handler(error_logger_file_h, - rabbit_error_logger_file_h, - error_logger_tty_h, - log_location(kernel), - Handlers), - - ok = ensure_working_log_handler(sasl_report_file_h, - rabbit_sasl_report_file_h, - sasl_report_tty_h, - log_location(sasl), - Handlers), - ok. - -ensure_working_log_handler(OldFHandler, NewFHandler, TTYHandler, - LogLocation, Handlers) -> - case LogLocation of - undefined -> ok; - tty -> case lists:member(TTYHandler, Handlers) of - true -> ok; - false -> - throw({error, {cannot_log_to_tty, - TTYHandler, not_installed}}) - end; - _ -> case lists:member(NewFHandler, Handlers) of - true -> ok; - false -> case rotate_logs(LogLocation, "", - OldFHandler, NewFHandler) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_log_to_file, - LogLocation, Reason}}) - end - end - end. - -boot_delegate() -> - {ok, Count} = application:get_env(rabbit, delegate_count), - rabbit_sup:start_child(delegate_sup, [Count]). - -maybe_insert_default_data() -> - case rabbit_mnesia:is_db_empty() of - true -> insert_default_data(); - false -> ok - end. - -insert_default_data() -> - {ok, DefaultUser} = application:get_env(default_user), - {ok, DefaultPass} = application:get_env(default_pass), - {ok, DefaultAdmin} = application:get_env(default_user_is_admin), - {ok, DefaultVHost} = application:get_env(default_vhost), - {ok, [DefaultConfigurePerm, DefaultWritePerm, DefaultReadPerm]} = - application:get_env(default_permissions), - ok = rabbit_vhost:add(DefaultVHost), - ok = rabbit_auth_backend_internal:add_user(DefaultUser, DefaultPass), - case DefaultAdmin of - true -> rabbit_auth_backend_internal:set_admin(DefaultUser); - _ -> ok - end, - ok = rabbit_auth_backend_internal:set_permissions(DefaultUser, DefaultVHost, - DefaultConfigurePerm, - DefaultWritePerm, - DefaultReadPerm), - ok. - -rotate_logs(File, Suffix, Handler) -> - rotate_logs(File, Suffix, Handler, Handler). - -rotate_logs(File, Suffix, OldHandler, NewHandler) -> - case File of - undefined -> ok; - tty -> ok; - _ -> gen_event:swap_handler( - error_logger, - {OldHandler, swap}, - {NewHandler, {File, Suffix}}) - end. - -log_rotation_result({error, MainLogError}, {error, SaslLogError}) -> - {error, {{cannot_rotate_main_logs, MainLogError}, - {cannot_rotate_sasl_logs, SaslLogError}}}; -log_rotation_result({error, MainLogError}, ok) -> - {error, {cannot_rotate_main_logs, MainLogError}}; -log_rotation_result(ok, {error, SaslLogError}) -> - {error, {cannot_rotate_sasl_logs, SaslLogError}}; -log_rotation_result(ok, ok) -> - ok. diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl deleted file mode 100644 index b0b57af4..00000000 --- a/src/rabbit_access_control.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_access_control). - --include("rabbit.hrl"). - --export([user_pass_login/2, check_user_pass_login/2, check_user_login/2, - check_vhost_access/2, check_resource_access/3, list_vhosts/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([permission_atom/0, vhost_permission_atom/0]). - --type(permission_atom() :: 'configure' | 'read' | 'write'). --type(vhost_permission_atom() :: 'read' | 'write'). - --spec(user_pass_login/2 :: - (rabbit_types:username(), rabbit_types:password()) - -> rabbit_types:user() | rabbit_types:channel_exit()). --spec(check_user_pass_login/2 :: - (rabbit_types:username(), rabbit_types:password()) - -> {'ok', rabbit_types:user()} | {'refused', string(), [any()]}). --spec(check_vhost_access/2 :: - (rabbit_types:user(), rabbit_types:vhost()) - -> 'ok' | rabbit_types:channel_exit()). --spec(check_resource_access/3 :: - (rabbit_types:user(), rabbit_types:r(atom()), permission_atom()) - -> 'ok' | rabbit_types:channel_exit()). --spec(list_vhosts/2 :: (rabbit_types:user(), vhost_permission_atom()) - -> [rabbit_types:vhost()]). - --endif. - -%%---------------------------------------------------------------------------- - -user_pass_login(User, Pass) -> - ?LOGDEBUG("Login with user ~p pass ~p~n", [User, Pass]), - case check_user_pass_login(User, Pass) of - {refused, Msg, Args} -> - rabbit_misc:protocol_error( - access_refused, "login refused: ~s", [io_lib:format(Msg, Args)]); - {ok, U} -> - U - end. - -check_user_pass_login(Username, Password) -> - check_user_login(Username, [{password, Password}]). - -check_user_login(Username, AuthProps) -> - {ok, Modules} = application:get_env(rabbit, auth_backends), - lists:foldl( - fun(Module, {refused, _, _}) -> - case Module:check_user_login(Username, AuthProps) of - {error, E} -> - {refused, "~s failed authenticating ~s: ~p~n", - [Module, Username, E]}; - Else -> - Else - end; - (_, {ok, User}) -> - {ok, User} - end, {refused, "No modules checked '~s'", [Username]}, Modules). - -check_vhost_access(User = #user{ username = Username, - auth_backend = Module }, VHostPath) -> - ?LOGDEBUG("Checking VHost access for ~p to ~p~n", [Username, VHostPath]), - check_access( - fun() -> - rabbit_vhost:exists(VHostPath) andalso - Module:check_vhost_access(User, VHostPath, write) - end, - "~s failed checking vhost access to ~s for ~s: ~p~n", - [Module, VHostPath, Username], - "access to vhost '~s' refused for user '~s'", - [VHostPath, Username]). - -check_resource_access(User, R = #resource{kind = exchange, name = <<"">>}, - Permission) -> - check_resource_access(User, R#resource{name = <<"amq.default">>}, - Permission); -check_resource_access(User = #user{username = Username, auth_backend = Module}, - Resource, Permission) -> - check_access( - fun() -> Module:check_resource_access(User, Resource, Permission) end, - "~s failed checking resource access to ~p for ~s: ~p~n", - [Module, Resource, Username], - "access to ~s refused for user '~s'", - [rabbit_misc:rs(Resource), Username]). - -check_access(Fun, ErrStr, ErrArgs, RefStr, RefArgs) -> - Allow = case Fun() of - {error, _} = E -> - rabbit_log:error(ErrStr, ErrArgs ++ [E]), - false; - Else -> - Else - end, - case Allow of - true -> - ok; - false -> - rabbit_misc:protocol_error(access_refused, RefStr, RefArgs) - end. - -%% Permission = write -> log in -%% Permission = read -> learn of the existence of (only relevant for -%% management plugin) -list_vhosts(User = #user{username = Username, auth_backend = Module}, - Permission) -> - lists:filter( - fun(VHost) -> - case Module:check_vhost_access(User, VHost, Permission) of - {error, _} = E -> - rabbit_log:warning("~w failed checking vhost access " - "to ~s for ~s: ~p~n", - [Module, VHost, Username, E]), - false; - Else -> - Else - end - end, rabbit_vhost:list()). diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl deleted file mode 100644 index d38ecb91..00000000 --- a/src/rabbit_alarm.erl +++ /dev/null @@ -1,166 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_alarm). - --behaviour(gen_event). - --export([start/0, stop/0, register/2, on_node_up/1, on_node_down/1]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - --export([remote_conserve_memory/2]). %% Internal use only - --record(alarms, {alertees, alarmed_nodes}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(mfa_tuple() :: {atom(), atom(), list()}). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(register/2 :: (pid(), mfa_tuple()) -> boolean()). --spec(on_node_up/1 :: (node()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - ok = alarm_handler:add_alarm_handler(?MODULE, []), - {ok, MemoryWatermark} = application:get_env(vm_memory_high_watermark), - ok = case MemoryWatermark == 0 of - true -> ok; - false -> rabbit_sup:start_restartable_child(vm_memory_monitor, - [MemoryWatermark]) - end, - ok. - -stop() -> - ok = alarm_handler:delete_alarm_handler(?MODULE). - -register(Pid, HighMemMFA) -> - gen_event:call(alarm_handler, ?MODULE, - {register, Pid, HighMemMFA}, - infinity). - -on_node_up(Node) -> gen_event:notify(alarm_handler, {node_up, Node}). - -on_node_down(Node) -> gen_event:notify(alarm_handler, {node_down, Node}). - -%% Can't use alarm_handler:{set,clear}_alarm because that doesn't -%% permit notifying a remote node. -remote_conserve_memory(Pid, true) -> - gen_event:notify({alarm_handler, node(Pid)}, - {set_alarm, {{vm_memory_high_watermark, node()}, []}}); -remote_conserve_memory(Pid, false) -> - gen_event:notify({alarm_handler, node(Pid)}, - {clear_alarm, {vm_memory_high_watermark, node()}}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #alarms{alertees = dict:new(), - alarmed_nodes = sets:new()}}. - -handle_call({register, Pid, HighMemMFA}, State) -> - {ok, 0 < sets:size(State#alarms.alarmed_nodes), - internal_register(Pid, HighMemMFA, State)}; - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({set_alarm, {{vm_memory_high_watermark, Node}, []}}, State) -> - {ok, maybe_alert(fun sets:add_element/2, Node, State)}; - -handle_event({clear_alarm, {vm_memory_high_watermark, Node}}, State) -> - {ok, maybe_alert(fun sets:del_element/2, Node, State)}; - -handle_event({node_up, Node}, State) -> - %% Must do this via notify and not call to avoid possible deadlock. - ok = gen_event:notify( - {alarm_handler, Node}, - {register, self(), {?MODULE, remote_conserve_memory, []}}), - {ok, State}; - -handle_event({node_down, Node}, State) -> - {ok, maybe_alert(fun sets:del_element/2, Node, State)}; - -handle_event({register, Pid, HighMemMFA}, State) -> - {ok, internal_register(Pid, HighMemMFA, State)}; - -handle_event(_Event, State) -> - {ok, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #alarms{alertees = Alertees}) -> - {ok, State#alarms{alertees = dict:erase(Pid, Alertees)}}; - -handle_info(_Info, State) -> - {ok, State}. - -terminate(_Arg, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -maybe_alert(SetFun, Node, State = #alarms{alarmed_nodes = AN, - alertees = Alertees}) -> - AN1 = SetFun(Node, AN), - BeforeSz = sets:size(AN), - AfterSz = sets:size(AN1), - %% If we have changed our alarm state, inform the remotes. - IsLocal = Node =:= node(), - if IsLocal andalso BeforeSz < AfterSz -> ok = alert_remote(true, Alertees); - IsLocal andalso BeforeSz > AfterSz -> ok = alert_remote(false, Alertees); - true -> ok - end, - %% If the overall alarm state has changed, inform the locals. - case {BeforeSz, AfterSz} of - {0, 1} -> ok = alert_local(true, Alertees); - {1, 0} -> ok = alert_local(false, Alertees); - {_, _} -> ok - end, - State#alarms{alarmed_nodes = AN1}. - -alert_local(Alert, Alertees) -> alert(Alert, Alertees, fun erlang:'=:='/2). - -alert_remote(Alert, Alertees) -> alert(Alert, Alertees, fun erlang:'=/='/2). - -alert(Alert, Alertees, NodeComparator) -> - Node = node(), - dict:fold(fun (Pid, {M, F, A}, ok) -> - case NodeComparator(Node, node(Pid)) of - true -> apply(M, F, A ++ [Pid, Alert]); - false -> ok - end - end, ok, Alertees). - -internal_register(Pid, {M, F, A} = HighMemMFA, - State = #alarms{alertees = Alertees}) -> - _MRef = erlang:monitor(process, Pid), - case sets:is_element(node(), State#alarms.alarmed_nodes) of - true -> ok = apply(M, F, A ++ [Pid, true]); - false -> ok - end, - NewAlertees = dict:store(Pid, HighMemMFA, Alertees), - State#alarms{alertees = NewAlertees}. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl deleted file mode 100644 index c7391965..00000000 --- a/src/rabbit_amqqueue.erl +++ /dev/null @@ -1,506 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue). - --export([start/0, stop/0, declare/5, delete_immediately/1, delete/3, purge/1]). --export([pseudo_queue/2]). --export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, - check_exclusive_access/2, with_exclusive_access_or_die/3, - stat/1, deliver/2, requeue/3, ack/4, reject/4]). --export([list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). --export([consumers/1, consumers_all/1]). --export([basic_get/3, basic_consume/7, basic_cancel/4]). --export([notify_sent/2, unblock/2, flush_all/2]). --export([commit_all/3, rollback_all/3, notify_down_all/2, limit_all/3]). --export([on_node_down/1]). - -%% internal --export([internal_declare/2, internal_delete/1, - run_backing_queue/2, run_backing_queue_async/2, - sync_timeout/1, update_ram_duration/1, set_ram_duration_target/2, - set_maximum_since_use/2, maybe_expire/1, drop_expired/1, - emit_stats/1]). - --include("rabbit.hrl"). --include_lib("stdlib/include/qlc.hrl"). - --define(INTEGER_ARG_TYPES, [byte, short, signedint, long]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, qmsg/0]). - --type(name() :: rabbit_types:r('queue')). - --type(qlen() :: rabbit_types:ok(non_neg_integer())). --type(qfun(A) :: fun ((rabbit_types:amqqueue()) -> A)). --type(qmsg() :: {name(), pid(), msg_id(), boolean(), rabbit_types:message()}). --type(msg_id() :: non_neg_integer()). --type(ok_or_errors() :: - 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). - --type(queue_or_not_found() :: rabbit_types:amqqueue() | 'not_found'). - --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(declare/5 :: - (name(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> {'new' | 'existing', rabbit_types:amqqueue()} | - rabbit_types:channel_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:amqqueue()) | - rabbit_types:error('not_found')). --spec(with/2 :: (name(), qfun(A)) -> A | rabbit_types:error('not_found')). --spec(with_or_die/2 :: - (name(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(assert_equivalence/5 :: - (rabbit_types:amqqueue(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> 'ok' | rabbit_types:channel_exit() | - rabbit_types:connection_exit()). --spec(check_exclusive_access/2 :: - (rabbit_types:amqqueue(), pid()) - -> 'ok' | rabbit_types:channel_exit()). --spec(with_exclusive_access_or_die/3 :: - (name(), pid(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:amqqueue()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:amqqueue()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:amqqueue(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 :: (rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(consumers/1 :: - (rabbit_types:amqqueue()) - -> [{pid(), rabbit_types:ctag(), boolean()}]). --spec(consumers_all/1 :: - (rabbit_types:vhost()) - -> [{name(), pid(), rabbit_types:ctag(), boolean()}]). --spec(stat/1 :: - (rabbit_types:amqqueue()) - -> {'ok', non_neg_integer(), non_neg_integer()}). --spec(emit_stats/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete_immediately/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete/3 :: - (rabbit_types:amqqueue(), 'false', 'false') - -> qlen(); - (rabbit_types:amqqueue(), 'true' , 'false') - -> qlen() | rabbit_types:error('in_use'); - (rabbit_types:amqqueue(), 'false', 'true' ) - -> qlen() | rabbit_types:error('not_empty'); - (rabbit_types:amqqueue(), 'true' , 'true' ) - -> qlen() | - rabbit_types:error('in_use') | - rabbit_types:error('not_empty')). --spec(purge/1 :: (rabbit_types:amqqueue()) -> qlen()). --spec(deliver/2 :: (pid(), rabbit_types:delivery()) -> boolean()). --spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). --spec(ack/4 :: - (pid(), rabbit_types:maybe(rabbit_types:txn()), [msg_id()], pid()) - -> 'ok'). --spec(reject/4 :: (pid(), [msg_id()], boolean(), pid()) -> 'ok'). --spec(commit_all/3 :: ([pid()], rabbit_types:txn(), pid()) -> ok_or_errors()). --spec(rollback_all/3 :: ([pid()], rabbit_types:txn(), pid()) -> 'ok'). --spec(notify_down_all/2 :: ([pid()], pid()) -> ok_or_errors()). --spec(limit_all/3 :: ([pid()], pid(), pid() | 'undefined') -> ok_or_errors()). --spec(basic_get/3 :: (rabbit_types:amqqueue(), pid(), boolean()) -> - {'ok', non_neg_integer(), qmsg()} | 'empty'). --spec(basic_consume/7 :: - (rabbit_types:amqqueue(), boolean(), pid(), pid() | 'undefined', - rabbit_types:ctag(), boolean(), any()) - -> rabbit_types:ok_or_error('exclusive_consume_unavailable')). --spec(basic_cancel/4 :: - (rabbit_types:amqqueue(), pid(), rabbit_types:ctag(), any()) -> 'ok'). --spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(flush_all/2 :: ([pid()], pid()) -> 'ok'). --spec(internal_declare/2 :: - (rabbit_types:amqqueue(), boolean()) - -> queue_or_not_found() | rabbit_misc:thunk(queue_or_not_found())). --spec(internal_delete/1 :: - (name()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit() | - fun ((boolean()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit())). --spec(run_backing_queue/2 :: - (pid(), (fun ((A) -> {[rabbit_types:msg_id()], A}))) -> 'ok'). --spec(run_backing_queue_async/2 :: - (pid(), (fun ((A) -> {[rabbit_types:msg_id()], A}))) -> 'ok'). --spec(sync_timeout/1 :: (pid()) -> 'ok'). --spec(update_ram_duration/1 :: (pid()) -> 'ok'). --spec(set_ram_duration_target/2 :: (pid(), number() | 'infinity') -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). --spec(maybe_expire/1 :: (pid()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(pseudo_queue/2 :: (name(), pid()) -> rabbit_types:amqqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - DurableQueues = find_durable_queues(), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:start([QName || #amqqueue{name = QName} <- DurableQueues]), - {ok,_} = supervisor:start_child( - rabbit_sup, - {rabbit_amqqueue_sup, - {rabbit_amqqueue_sup, start_link, []}, - transient, infinity, supervisor, [rabbit_amqqueue_sup]}), - _RealDurableQueues = recover_durable_queues(DurableQueues), - ok. - -stop() -> - ok = supervisor:terminate_child(rabbit_sup, rabbit_amqqueue_sup), - ok = supervisor:delete_child(rabbit_sup, rabbit_amqqueue_sup), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:stop(). - -find_durable_queues() -> - Node = node(), - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end). - -recover_durable_queues(DurableQueues) -> - Qs = [start_queue_process(Q) || Q <- DurableQueues], - [Q || Q <- Qs, - gen_server2:call(Q#amqqueue.pid, {init, true}, infinity) == Q]. - -declare(QueueName, Durable, AutoDelete, Args, Owner) -> - ok = check_declare_arguments(QueueName, Args), - Q = start_queue_process(#amqqueue{name = QueueName, - durable = Durable, - auto_delete = AutoDelete, - arguments = Args, - exclusive_owner = Owner, - pid = none}), - case gen_server2:call(Q#amqqueue.pid, {init, false}, infinity) of - not_found -> rabbit_misc:not_found(QueueName); - Q1 -> Q1 - end. - -internal_declare(Q, true) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> ok = store_queue(Q), rabbit_misc:const(Q) end); -internal_declare(Q = #amqqueue{name = QueueName}, false) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> - case mnesia:read({rabbit_durable_queue, QueueName}) of - [] -> ok = store_queue(Q), - B = add_default_binding(Q), - fun (Tx) -> B(Tx), Q end; - %% Q exists on stopped node - [_] -> rabbit_misc:const(not_found) - end; - [ExistingQ = #amqqueue{pid = QPid}] -> - case rabbit_misc:is_process_alive(QPid) of - true -> rabbit_misc:const(ExistingQ); - false -> TailFun = internal_delete(QueueName), - fun (Tx) -> TailFun(Tx), ExistingQ end - end - end - end). - -store_queue(Q = #amqqueue{durable = true}) -> - ok = mnesia:write(rabbit_durable_queue, Q, write), - ok = mnesia:write(rabbit_queue, Q, write), - ok; -store_queue(Q = #amqqueue{durable = false}) -> - ok = mnesia:write(rabbit_queue, Q, write), - ok. - -start_queue_process(Q) -> - {ok, Pid} = rabbit_amqqueue_sup:start_child([Q]), - Q#amqqueue{pid = Pid}. - -add_default_binding(#amqqueue{name = QueueName}) -> - ExchangeName = rabbit_misc:r(QueueName, exchange, <<>>), - RoutingKey = QueueName#resource.name, - rabbit_binding:add(#binding{source = ExchangeName, - destination = QueueName, - key = RoutingKey, - args = []}). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_queue, Name}). - -with(Name, F, E) -> - case lookup(Name) of - {ok, Q} -> rabbit_misc:with_exit_handler(E, fun () -> F(Q) end); - {error, not_found} -> E() - end. - -with(Name, F) -> - with(Name, F, fun () -> {error, not_found} end). -with_or_die(Name, F) -> - with(Name, F, fun () -> rabbit_misc:not_found(Name) end). - -assert_equivalence(#amqqueue{durable = Durable, - auto_delete = AutoDelete} = Q, - Durable, AutoDelete, RequiredArgs, Owner) -> - assert_args_equivalence(Q, RequiredArgs), - check_exclusive_access(Q, Owner, strict); -assert_equivalence(#amqqueue{name = QueueName}, - _Durable, _AutoDelete, _RequiredArgs, _Owner) -> - rabbit_misc:protocol_error( - precondition_failed, "parameters for ~s not equivalent", - [rabbit_misc:rs(QueueName)]). - -check_exclusive_access(Q, Owner) -> check_exclusive_access(Q, Owner, lax). - -check_exclusive_access(#amqqueue{exclusive_owner = Owner}, Owner, _MatchType) -> - ok; -check_exclusive_access(#amqqueue{exclusive_owner = none}, _ReaderPid, lax) -> - ok; -check_exclusive_access(#amqqueue{name = QueueName}, _ReaderPid, _MatchType) -> - rabbit_misc:protocol_error( - resource_locked, - "cannot obtain exclusive access to locked ~s", - [rabbit_misc:rs(QueueName)]). - -with_exclusive_access_or_die(Name, ReaderPid, F) -> - with_or_die(Name, - fun (Q) -> check_exclusive_access(Q, ReaderPid), F(Q) end). - -assert_args_equivalence(#amqqueue{name = QueueName, arguments = Args}, - RequiredArgs) -> - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, QueueName, - [<<"x-expires">>]). - -check_declare_arguments(QueueName, Args) -> - [case Fun(rabbit_misc:table_lookup(Args, Key)) of - ok -> ok; - {error, Error} -> rabbit_misc:protocol_error( - precondition_failed, - "invalid arg '~s' for ~s: ~w", - [Key, rabbit_misc:rs(QueueName), Error]) - end || {Key, Fun} <- - [{<<"x-expires">>, fun check_integer_argument/1}, - {<<"x-message-ttl">>, fun check_integer_argument/1}]], - ok. - -check_integer_argument(undefined) -> - ok; -check_integer_argument({Type, Val}) when Val > 0 -> - case lists:member(Type, ?INTEGER_ARG_TYPES) of - true -> ok; - false -> {error, {unacceptable_type, Type}} - end; -check_integer_argument({_Type, Val}) -> - {error, {value_zero_or_less, Val}}. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_queue, - #amqqueue{name = rabbit_misc:r(VHostPath, queue), _ = '_'}). - -info_keys() -> rabbit_amqqueue_process:info_keys(). - -map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). - -info(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, info). - -info(#amqqueue{ pid = QPid }, Items) -> - case delegate_call(QPid, {info, Items}) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). - -consumers(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, consumers). - -consumers_all(VHostPath) -> - lists:append( - map(VHostPath, - fun (Q) -> [{Q#amqqueue.name, ChPid, ConsumerTag, AckRequired} || - {ChPid, ConsumerTag, AckRequired} <- consumers(Q)] - end)). - -stat(#amqqueue{pid = QPid}) -> - delegate_call(QPid, stat). - -emit_stats(#amqqueue{pid = QPid}) -> - delegate_cast(QPid, emit_stats). - -delete_immediately(#amqqueue{ pid = QPid }) -> - gen_server2:cast(QPid, delete_immediately). - -delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}). - -purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge). - -deliver(QPid, Delivery = #delivery{immediate = true}) -> - gen_server2:call(QPid, {deliver_immediately, Delivery}, infinity); -deliver(QPid, Delivery = #delivery{mandatory = true}) -> - gen_server2:call(QPid, {deliver, Delivery}, infinity), - true; -deliver(QPid, Delivery) -> - gen_server2:cast(QPid, {deliver, Delivery}), - true. - -requeue(QPid, MsgIds, ChPid) -> - delegate_call(QPid, {requeue, MsgIds, ChPid}). - -ack(QPid, Txn, MsgIds, ChPid) -> - delegate_cast(QPid, {ack, Txn, MsgIds, ChPid}). - -reject(QPid, MsgIds, Requeue, ChPid) -> - delegate_cast(QPid, {reject, MsgIds, Requeue, ChPid}). - -commit_all(QPids, Txn, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {commit, Txn, ChPid}, infinity) end, - QPids). - -rollback_all(QPids, Txn, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {rollback, Txn, ChPid}) end). - -notify_down_all(QPids, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, infinity) end, - QPids). - -limit_all(QPids, ChPid, LimiterPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> - gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) - end). - -basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> - delegate_call(QPid, {basic_get, ChPid, NoAck}). - -basic_consume(#amqqueue{pid = QPid}, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg) -> - delegate_call(QPid, {basic_consume, NoAck, ChPid, - LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg}). - -basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> - ok = delegate_call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}). - -notify_sent(QPid, ChPid) -> - gen_server2:cast(QPid, {notify_sent, ChPid}). - -unblock(QPid, ChPid) -> - delegate_cast(QPid, {unblock, ChPid}). - -flush_all(QPids, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). - -internal_delete1(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - ok = mnesia:delete({rabbit_durable_queue, QueueName}), - %% we want to execute some things, as decided by rabbit_exchange, - %% after the transaction. - rabbit_binding:remove_for_destination(QueueName). - -internal_delete(QueueName) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> rabbit_misc:const({error, not_found}); - [_] -> Deletions = internal_delete1(QueueName), - fun (Tx) -> ok = rabbit_binding:process_deletions( - Deletions, Tx) - end - end - end). - -run_backing_queue(QPid, Fun) -> - gen_server2:call(QPid, {run_backing_queue, Fun}, infinity). - -run_backing_queue_async(QPid, Fun) -> - gen_server2:cast(QPid, {run_backing_queue, Fun}). - -sync_timeout(QPid) -> - gen_server2:cast(QPid, sync_timeout). - -update_ram_duration(QPid) -> - gen_server2:cast(QPid, update_ram_duration). - -set_ram_duration_target(QPid, Duration) -> - gen_server2:cast(QPid, {set_ram_duration_target, Duration}). - -set_maximum_since_use(QPid, Age) -> - gen_server2:cast(QPid, {set_maximum_since_use, Age}). - -maybe_expire(QPid) -> - gen_server2:cast(QPid, maybe_expire). - -drop_expired(QPid) -> - gen_server2:cast(QPid, drop_expired). - -on_node_down(Node) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> qlc:e(qlc:q([delete_queue(QueueName) || - #amqqueue{name = QueueName, pid = Pid} - <- mnesia:table(rabbit_queue), - node(Pid) == Node])) - end, - fun (Deletions, Tx) -> - rabbit_binding:process_deletions( - lists:foldl(fun rabbit_binding:combine_deletions/2, - rabbit_binding:new_deletions(), - Deletions), - Tx) - end). - -delete_queue(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - rabbit_binding:remove_transient_for_destination(QueueName). - -pseudo_queue(QueueName, Pid) -> - #amqqueue{name = QueueName, - durable = false, - auto_delete = false, - arguments = [], - pid = Pid}. - -safe_delegate_call_ok(F, Pids) -> - case delegate:invoke(Pids, fun (Pid) -> - rabbit_misc:with_exit_handler( - fun () -> ok end, - fun () -> F(Pid) end) - end) of - {_, []} -> ok; - {_, Bad} -> {error, Bad} - end. - -delegate_call(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> gen_server2:call(P, Msg, infinity) end). - -delegate_cast(Pid, Msg) -> - delegate:invoke_no_result(Pid, fun (P) -> gen_server2:cast(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl deleted file mode 100644 index 7c4b5190..00000000 --- a/src/rabbit_amqqueue_process.erl +++ /dev/null @@ -1,1156 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_process). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(gen_server2). - --define(UNSENT_MESSAGE_LIMIT, 100). --define(SYNC_INTERVAL, 25). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). - --define(BASE_MESSAGE_PROPERTIES, - #message_properties{expiry = undefined, needs_confirming = false}). - --export([start_link/1, info_keys/0]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2]). - -%% Queue's state --record(q, {q, - exclusive_consumer, - has_had_consumers, - backing_queue, - backing_queue_state, - active_consumers, - blocked_consumers, - expires, - sync_timer_ref, - rate_timer_ref, - expiry_timer_ref, - stats_timer, - msg_id_to_channel, - ttl, - ttl_timer_ref - }). - --record(consumer, {tag, ack_required}). - -%% These are held in our process dictionary --record(cr, {consumer_count, - ch_pid, - limiter_pid, - monitor_ref, - acktags, - is_limit_active, - txn, - unsent_message_count}). - --define(STATISTICS_KEYS, - [pid, - exclusive_consumer_pid, - exclusive_consumer_tag, - messages_ready, - messages_unacknowledged, - messages, - consumers, - memory, - backing_queue_status - ]). - --define(CREATION_EVENT_KEYS, - [pid, - name, - durable, - auto_delete, - arguments, - owner_pid - ]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - -start_link(Q) -> gen_server2:start_link(?MODULE, Q, []). - -info_keys() -> ?INFO_KEYS. - -%%---------------------------------------------------------------------------- - -init(Q) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - process_flag(trap_exit, true), - {ok, BQ} = application:get_env(backing_queue_module), - - {ok, #q{q = Q#amqqueue{pid = self()}, - exclusive_consumer = none, - has_had_consumers = false, - backing_queue = BQ, - backing_queue_state = undefined, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - expires = undefined, - sync_timer_ref = undefined, - rate_timer_ref = undefined, - expiry_timer_ref = undefined, - ttl = undefined, - stats_timer = rabbit_event:init_stats_timer(), - msg_id_to_channel = dict:new()}, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -terminate(shutdown, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate({shutdown, _}, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate(_Reason, State = #q{backing_queue = BQ}) -> - %% FIXME: How do we cancel active subscriptions? - terminate_shutdown(fun (BQS) -> - rabbit_event:notify( - queue_deleted, [{pid, self()}]), - BQS1 = BQ:delete_and_terminate(BQS), - %% don't care if the internal delete - %% doesn't return 'ok'. - rabbit_amqqueue:internal_delete(qname(State)), - BQS1 - end, State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -declare(Recover, From, - State = #q{q = Q = #amqqueue{name = QName, durable = IsDurable}, - backing_queue = BQ, backing_queue_state = undefined, - stats_timer = StatsTimer}) -> - case rabbit_amqqueue:internal_declare(Q, Recover) of - not_found -> {stop, normal, not_found, State}; - Q -> gen_server2:reply(From, {new, Q}), - ok = file_handle_cache:register_callback( - rabbit_amqqueue, set_maximum_since_use, - [self()]), - ok = rabbit_memory_monitor:register( - self(), {rabbit_amqqueue, - set_ram_duration_target, [self()]}), - BQS = bq_init(BQ, QName, IsDurable, Recover), - State1 = process_args(State#q{backing_queue_state = BQS}), - rabbit_event:notify(queue_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> emit_stats(State1) end), - noreply(State1); - Q1 -> {stop, normal, {existing, Q1}, State} - end. - -bq_init(BQ, QName, IsDurable, Recover) -> - Self = self(), - BQ:init(QName, IsDurable, Recover, - fun (Fun) -> - rabbit_amqqueue:run_backing_queue_async(Self, Fun) - end, - fun (Fun) -> - rabbit_misc:with_exit_handler( - fun () -> error end, - fun () -> - rabbit_amqqueue:run_backing_queue(Self, Fun) - end) - end). - -process_args(State = #q{q = #amqqueue{arguments = Arguments}}) -> - lists:foldl(fun({Arg, Fun}, State1) -> - case rabbit_misc:table_lookup(Arguments, Arg) of - {_Type, Val} -> Fun(Val, State1); - undefined -> State1 - end - end, State, [{<<"x-expires">>, fun init_expires/2}, - {<<"x-message-ttl">>, fun init_ttl/2}]). - -init_expires(Expires, State) -> ensure_expiry_timer(State#q{expires = Expires}). - -init_ttl(TTL, State) -> drop_expired_messages(State#q{ttl = TTL}). - -terminate_shutdown(Fun, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - stop_sync_timer(stop_rate_timer(State)), - case BQS of - undefined -> State; - _ -> ok = rabbit_memory_monitor:deregister(self()), - BQS1 = lists:foldl( - fun (#cr{txn = none}, BQSN) -> - BQSN; - (#cr{txn = Txn}, BQSN) -> - {_AckTags, BQSN1} = - BQ:tx_rollback(Txn, BQSN), - BQSN1 - end, BQS, all_ch_record()), - [emit_consumer_deleted(Ch, CTag) - || {Ch, CTag, _} <- consumers(State1)], - State1#q{backing_queue_state = Fun(BQS1)} - end. - -reply(Reply, NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {reply, Reply, NewState1, Timeout}. - -noreply(NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {noreply, NewState1, Timeout}. - -next_state(State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - {MsgIds, BQS1} = BQ:drain_confirmed(BQS), - State1 = ensure_stats_timer( - ensure_rate_timer( - confirm_messages(MsgIds, State#q{ - backing_queue_state = BQS1}))), - case BQ:needs_idle_timeout(BQS1) of - true -> {ensure_sync_timer(State1), 0}; - false -> {stop_sync_timer(State1), hibernate} - end. - -ensure_sync_timer(State = #q{sync_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?SYNC_INTERVAL, rabbit_amqqueue, sync_timeout, [self()]), - State#q{sync_timer_ref = TRef}; -ensure_sync_timer(State) -> - State. - -stop_sync_timer(State = #q{sync_timer_ref = undefined}) -> - State; -stop_sync_timer(State = #q{sync_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{sync_timer_ref = undefined}. - -ensure_rate_timer(State = #q{rate_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), - State#q{rate_timer_ref = TRef}; -ensure_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -ensure_rate_timer(State) -> - State. - -stop_rate_timer(State = #q{rate_timer_ref = undefined}) -> - State; -stop_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{rate_timer_ref = undefined}. - -stop_expiry_timer(State = #q{expiry_timer_ref = undefined}) -> - State; -stop_expiry_timer(State = #q{expiry_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{expiry_timer_ref = undefined}. - -%% We wish to expire only when there are no consumers *and* the expiry -%% hasn't been refreshed (by queue.declare or basic.get) for the -%% configured period. -ensure_expiry_timer(State = #q{expires = undefined}) -> - State; -ensure_expiry_timer(State = #q{expires = Expires}) -> - case is_unused(State) of - true -> - NewState = stop_expiry_timer(State), - {ok, TRef} = timer:apply_after( - Expires, rabbit_amqqueue, maybe_expire, [self()]), - NewState#q{expiry_timer_ref = TRef}; - false -> - State - end. - -ensure_stats_timer(State = #q{stats_timer = StatsTimer, - q = Q}) -> - State#q{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> rabbit_amqqueue:emit_stats(Q) end)}. - -assert_invariant(#q{active_consumers = AC, - backing_queue = BQ, backing_queue_state = BQS}) -> - true = (queue:is_empty(AC) orelse BQ:is_empty(BQS)). - -lookup_ch(ChPid) -> - case get({ch, ChPid}) of - undefined -> not_found; - C -> C - end. - -ch_record(ChPid) -> - Key = {ch, ChPid}, - case get(Key) of - undefined -> MonitorRef = erlang:monitor(process, ChPid), - C = #cr{consumer_count = 0, - ch_pid = ChPid, - monitor_ref = MonitorRef, - acktags = sets:new(), - is_limit_active = false, - txn = none, - unsent_message_count = 0}, - put(Key, C), - C; - C = #cr{} -> C - end. - -store_ch_record(C = #cr{ch_pid = ChPid}) -> - put({ch, ChPid}, C). - -maybe_store_ch_record(C = #cr{consumer_count = ConsumerCount, - acktags = ChAckTags, - txn = Txn, - unsent_message_count = UnsentMessageCount}) -> - case {sets:size(ChAckTags), ConsumerCount, UnsentMessageCount, Txn} of - {0, 0, 0, none} -> ok = erase_ch_record(C), - false; - _ -> store_ch_record(C), - true - end. - -erase_ch_record(#cr{ch_pid = ChPid, - limiter_pid = LimiterPid, - monitor_ref = MonitorRef}) -> - ok = rabbit_limiter:unregister(LimiterPid, self()), - erlang:demonitor(MonitorRef), - erase({ch, ChPid}), - ok. - -all_ch_record() -> [C || {{ch, _}, C} <- get()]. - -is_ch_blocked(#cr{unsent_message_count = Count, is_limit_active = Limited}) -> - Limited orelse Count >= ?UNSENT_MESSAGE_LIMIT. - -ch_record_state_transition(OldCR, NewCR) -> - case {is_ch_blocked(OldCR), is_ch_blocked(NewCR)} of - {true, false} -> unblock; - {false, true} -> block; - {_, _} -> ok - end. - -deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - case queue:out(ActiveConsumers) of - {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}}, - ActiveConsumersTail} -> - C = #cr{limiter_pid = LimiterPid, - unsent_message_count = Count, - acktags = ChAckTags} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of - true -> - {{Message, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), AckTag, IsDelivered, Message}), - ChAckTags1 = - case AckRequired of - true -> sets:add_element(AckTag, ChAckTags); - false -> ChAckTags - end, - NewC = C#cr{unsent_message_count = Count + 1, - acktags = ChAckTags1}, - true = maybe_store_ch_record(NewC), - {NewActiveConsumers, NewBlockedConsumers} = - case ch_record_state_transition(C, NewC) of - ok -> {queue:in(QEntry, ActiveConsumersTail), - BlockedConsumers}; - block -> {ActiveConsumers1, BlockedConsumers1} = - move_consumers(ChPid, - ActiveConsumersTail, - BlockedConsumers), - {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} - end, - State2 = State1#q{ - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}, - deliver_msgs_to_consumers(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> - true = maybe_store_ch_record(C#cr{is_limit_active = true}), - {NewActiveConsumers, NewBlockedConsumers} = - move_consumers(ChPid, - ActiveConsumers, - BlockedConsumers), - deliver_msgs_to_consumers( - Funs, FunAcc, - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} - end; - {empty, _} -> - {FunAcc, State} - end. - -deliver_from_queue_pred(IsEmpty, _State) -> not IsEmpty. - -deliver_from_queue_deliver(AckRequired, false, State) -> - {{Message, IsDelivered, AckTag, Remaining}, State1} = - fetch(AckRequired, State), - {{Message, IsDelivered, AckTag}, 0 == Remaining, State1}. - -confirm_messages([], State) -> - State; -confirm_messages(MsgIds, State = #q{msg_id_to_channel = MTC}) -> - {CMs, MTC1} = lists:foldl( - fun(MsgId, {CMs, MTC0}) -> - case dict:find(MsgId, MTC0) of - {ok, {ChPid, MsgSeqNo}} -> - {gb_trees_cons(ChPid, MsgSeqNo, CMs), - dict:erase(MsgId, MTC0)}; - _ -> - {CMs, MTC0} - end - end, {gb_trees:empty(), MTC}, MsgIds), - gb_trees:map(fun(ChPid, MsgSeqNos) -> - rabbit_channel:confirm(ChPid, MsgSeqNos) - end, CMs), - State#q{msg_id_to_channel = MTC1}. - -gb_trees_cons(Key, Value, Tree) -> - case gb_trees:lookup(Key, Tree) of - {value, Values} -> gb_trees:update(Key, [Value | Values], Tree); - none -> gb_trees:insert(Key, [Value], Tree) - end. - -record_confirm_message(#delivery{msg_seq_no = undefined}, State) -> - {never, State}; -record_confirm_message(#delivery{sender = ChPid, - msg_seq_no = MsgSeqNo, - message = #basic_message { - is_persistent = true, - id = MsgId}}, - State = #q{q = #amqqueue{durable = true}, - msg_id_to_channel = MTC}) -> - {eventually, - State#q{msg_id_to_channel = dict:store(MsgId, {ChPid, MsgSeqNo}, MTC)}}; -record_confirm_message(_Delivery, State) -> - {immediately, State}. - -run_message_queue(State) -> - Funs = {fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3}, - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - drop_expired_messages(State), - IsEmpty = BQ:is_empty(BQS), - {_IsEmpty1, State2} = deliver_msgs_to_consumers(Funs, IsEmpty, State1), - State2. - -attempt_delivery(#delivery{txn = none, - sender = ChPid, - message = Message, - msg_seq_no = MsgSeqNo}, - {NeedsConfirming, State = #q{backing_queue = BQ}}) -> - case NeedsConfirming of - immediately -> rabbit_channel:confirm(ChPid, [MsgSeqNo]); - _ -> ok - end, - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1 = #q{backing_queue_state = BQS}) -> - %% we don't need an expiry here because messages are - %% not being enqueued, so we use an empty - %% message_properties. - {AckTag, BQS1} = - BQ:publish_delivered( - AckRequired, Message, - (?BASE_MESSAGE_PROPERTIES)#message_properties{ - needs_confirming = (NeedsConfirming =:= eventually)}, - BQS), - {{Message, false, AckTag}, true, - State1#q{backing_queue_state = BQS1}} - end, - {Delivered, State1} = - deliver_msgs_to_consumers({ PredFun, DeliverFun }, false, State), - {Delivered, NeedsConfirming, State1}; -attempt_delivery(#delivery{txn = Txn, - sender = ChPid, - message = Message}, - {NeedsConfirming, State = #q{backing_queue = BQ, - backing_queue_state = BQS}}) -> - store_ch_record((ch_record(ChPid))#cr{txn = Txn}), - BQS1 = BQ:tx_publish(Txn, Message, ?BASE_MESSAGE_PROPERTIES, BQS), - {true, NeedsConfirming, State#q{backing_queue_state = BQS1}}. - -deliver_or_enqueue(Delivery, State) -> - case attempt_delivery(Delivery, record_confirm_message(Delivery, State)) of - {true, _, State1} -> - State1; - {false, NeedsConfirming, State1 = #q{backing_queue = BQ, - backing_queue_state = BQS}} -> - #delivery{message = Message} = Delivery, - BQS1 = BQ:publish(Message, - (message_properties(State)) #message_properties{ - needs_confirming = - (NeedsConfirming =:= eventually)}, - BQS), - ensure_ttl_timer(State1#q{backing_queue_state = BQS1}) - end. - -requeue_and_run(AckTags, State = #q{backing_queue = BQ, ttl=TTL}) -> - run_backing_queue( - fun (BQS) -> BQ:requeue(AckTags, reset_msg_expiry_fun(TTL), BQS) end, - State). - -fetch(AckRequired, State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - {Result, BQS1} = BQ:fetch(AckRequired, BQS), - {Result, State#q{backing_queue_state = BQS1}}. - -add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). - -remove_consumer(ChPid, ConsumerTag, Queue) -> - queue:filter(fun ({CP, #consumer{tag = CT}}) -> - (CP /= ChPid) or (CT /= ConsumerTag) - end, Queue). - -remove_consumers(ChPid, Queue) -> - {Kept, Removed} = split_by_channel(ChPid, Queue), - [emit_consumer_deleted(Ch, CTag) || - {Ch, #consumer{tag = CTag}} <- queue:to_list(Removed)], - Kept. - -move_consumers(ChPid, From, To) -> - {Kept, Removed} = split_by_channel(ChPid, From), - {Kept, queue:join(To, Removed)}. - -split_by_channel(ChPid, Queue) -> - {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, - queue:to_list(Queue)), - {queue:from_list(Kept), queue:from_list(Removed)}. - -possibly_unblock(State, ChPid, Update) -> - case lookup_ch(ChPid) of - not_found -> - State; - C -> - NewC = Update(C), - maybe_store_ch_record(NewC), - case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> {NewBlockedConsumers, NewActiveConsumers} = - move_consumers(ChPid, - State#q.blocked_consumers, - State#q.active_consumers), - run_message_queue( - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}) - end - end. - -should_auto_delete(#q{q = #amqqueue{auto_delete = false}}) -> false; -should_auto_delete(#q{has_had_consumers = false}) -> false; -should_auto_delete(State) -> is_unused(State). - -handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(DownPid) of - not_found -> - {ok, State}; - C = #cr{ch_pid = ChPid, txn = Txn, acktags = ChAckTags} -> - ok = erase_ch_record(C), - State1 = State#q{ - exclusive_consumer = case Holder of - {ChPid, _} -> none; - Other -> Other - end, - active_consumers = remove_consumers( - ChPid, State#q.active_consumers), - blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, - case should_auto_delete(State1) of - true -> {stop, State1}; - false -> State2 = case Txn of - none -> State1; - _ -> rollback_transaction(Txn, C, - State1) - end, - {ok, requeue_and_run(sets:to_list(ChAckTags), - ensure_expiry_timer(State2))} - end - end. - -cancel_holder(ChPid, ConsumerTag, {ChPid, ConsumerTag}) -> - none; -cancel_holder(_ChPid, _ConsumerTag, Holder) -> - Holder. - -check_exclusive_access({_ChPid, _ConsumerTag}, _ExclusiveConsume, _State) -> - in_use; -check_exclusive_access(none, false, _State) -> - ok; -check_exclusive_access(none, true, State) -> - case is_unused(State) of - true -> ok; - false -> in_use - end. - -is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso - queue:is_empty(State#q.blocked_consumers). - -maybe_send_reply(_ChPid, undefined) -> ok; -maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). - -qname(#q{q = #amqqueue{name = QName}}) -> QName. - -backing_queue_idle_timeout(State = #q{backing_queue = BQ}) -> - run_backing_queue(fun (BQS) -> BQ:idle_timeout(BQS) end, State). - -run_backing_queue(Fun, State = #q{backing_queue_state = BQS}) -> - run_message_queue(State#q{backing_queue_state = Fun(BQS)}). - -commit_transaction(Txn, From, C = #cr{acktags = ChAckTags}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL}) -> - {AckTags, BQS1} = BQ:tx_commit( - Txn, fun () -> gen_server2:reply(From, ok) end, - reset_msg_expiry_fun(TTL), BQS), - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1, txn = none}), - State#q{backing_queue_state = BQS1}. - -rollback_transaction(Txn, C, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {_AckTags, BQS1} = BQ:tx_rollback(Txn, BQS), - %% Iff we removed acktags from the channel record on ack+txn then - %% we would add them back in here. - maybe_store_ch_record(C#cr{txn = none}), - State#q{backing_queue_state = BQS1}. - -subtract_acks(A, B) when is_list(B) -> - lists:foldl(fun sets:del_element/2, A, B). - -reset_msg_expiry_fun(TTL) -> - fun(MsgProps) -> - MsgProps#message_properties{expiry = calculate_msg_expiry(TTL)} - end. - -message_properties(#q{ttl=TTL}) -> - #message_properties{expiry = calculate_msg_expiry(TTL)}. - -calculate_msg_expiry(undefined) -> undefined; -calculate_msg_expiry(TTL) -> now_micros() + (TTL * 1000). - -drop_expired_messages(State = #q{ttl = undefined}) -> - State; -drop_expired_messages(State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - Now = now_micros(), - BQS1 = BQ:dropwhile( - fun (#message_properties{expiry = Expiry}) -> Now > Expiry end, - BQS), - ensure_ttl_timer(State#q{backing_queue_state = BQS1}). - -ensure_ttl_timer(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL, - ttl_timer_ref = undefined}) - when TTL =/= undefined -> - case BQ:is_empty(BQS) of - true -> State; - false -> TRef = timer:apply_after(TTL, rabbit_amqqueue, drop_expired, - [self()]), - State#q{ttl_timer_ref = TRef} - end; -ensure_ttl_timer(State) -> - State. - -now_micros() -> timer:now_diff(now(), {0,0,0}). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(name, #q{q = #amqqueue{name = Name}}) -> Name; -i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; -i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; -i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(pid, _) -> - self(); -i(owner_pid, #q{q = #amqqueue{exclusive_owner = none}}) -> - ''; -i(owner_pid, #q{q = #amqqueue{exclusive_owner = ExclusiveOwner}}) -> - ExclusiveOwner; -i(exclusive_consumer_pid, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_pid, #q{exclusive_consumer = {ChPid, _ConsumerTag}}) -> - ChPid; -i(exclusive_consumer_tag, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_tag, #q{exclusive_consumer = {_ChPid, ConsumerTag}}) -> - ConsumerTag; -i(messages_ready, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:len(BQS); -i(messages_unacknowledged, _) -> - lists:sum([sets:size(C#cr.acktags) || C <- all_ch_record()]); -i(messages, State) -> - lists:sum([i(Item, State) || Item <- [messages_ready, - messages_unacknowledged]]); -i(consumers, State) -> - queue:len(State#q.active_consumers) + queue:len(State#q.blocked_consumers); -i(memory, _) -> - {memory, M} = process_info(self(), memory), - M; -i(backing_queue_status, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:status(BQS); -i(Item, _) -> - throw({bad_argument, Item}). - -consumers(#q{active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - rabbit_misc:queue_fold( - fun ({ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}, Acc) -> - [{ChPid, ConsumerTag, AckRequired} | Acc] - end, [], queue:join(ActiveConsumers, BlockedConsumers)). - -emit_stats(State) -> - emit_stats(State, []). - -emit_stats(State, Extra) -> - rabbit_event:notify(queue_stats, Extra ++ infos(?STATISTICS_KEYS, State)). - -emit_consumer_created(ChPid, ConsumerTag, Exclusive, AckRequired) -> - rabbit_event:notify(consumer_created, - [{consumer_tag, ConsumerTag}, - {exclusive, Exclusive}, - {ack_required, AckRequired}, - {channel, ChPid}, - {queue, self()}]). - -emit_consumer_deleted(ChPid, ConsumerTag) -> - rabbit_event:notify(consumer_deleted, - [{consumer_tag, ConsumerTag}, - {channel, ChPid}, - {queue, self()}]). - -%%---------------------------------------------------------------------------- - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - consumers -> 9; - {run_backing_queue, _Fun} -> 6; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - update_ram_duration -> 8; - delete_immediately -> 8; - {set_ram_duration_target, _Duration} -> 8; - {set_maximum_since_use, _Age} -> 8; - maybe_expire -> 8; - drop_expired -> 8; - emit_stats -> 7; - {ack, _Txn, _AckTags, _ChPid} -> 7; - {reject, _AckTags, _Requeue, _ChPid} -> 7; - {notify_sent, _ChPid} -> 7; - {unblock, _ChPid} -> 7; - {run_backing_queue, _Fun} -> 6; - sync_timeout -> 6; - _ -> 0 - end. - -prioritise_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - #q{q = #amqqueue{exclusive_owner = DownPid}}) -> 8; -prioritise_info(_Msg, _State) -> 0. - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = none}}) -> - declare(Recover, From, State); - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = Owner}}) -> - case rabbit_misc:is_process_alive(Owner) of - true -> erlang:monitor(process, Owner), - declare(Recover, From, State); - false -> #q{backing_queue = BQ, backing_queue_state = undefined, - q = #amqqueue{name = QName, durable = IsDurable}} = State, - gen_server2:reply(From, not_found), - case Recover of - true -> ok; - _ -> rabbit_log:warning( - "Queue ~p exclusive owner went away~n", [QName]) - end, - BQS = bq_init(BQ, QName, IsDurable, Recover), - %% Rely on terminate to delete the queue. - {stop, normal, State#q{backing_queue_state = BQS}} - end; - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(consumers, _From, State) -> - reply(consumers(State), State); - -handle_call({deliver_immediately, Delivery}, _From, State) -> - %% Synchronous, "immediate" delivery mode - %% - %% FIXME: Is this correct semantics? - %% - %% I'm worried in particular about the case where an exchange has - %% two queues against a particular routing key, and a message is - %% sent in immediate mode through the binding. In non-immediate - %% mode, both queues get the message, saving it for later if - %% there's noone ready to receive it just now. In immediate mode, - %% should both queues still get the message, somehow, or should - %% just all ready-to-consume queues get the message, with unready - %% queues discarding the message? - %% - {Delivered, _NeedsConfirming, State1} = - attempt_delivery(Delivery, record_confirm_message(Delivery, State)), - reply(Delivered, State1); - -handle_call({deliver, Delivery}, From, State) -> - %% Synchronous, "mandatory" delivery mode. Reply asap. - gen_server2:reply(From, true), - noreply(deliver_or_enqueue(Delivery, State)); - -handle_call({commit, Txn, ChPid}, From, State) -> - case lookup_ch(ChPid) of - not_found -> reply(ok, State); - C -> noreply(run_message_queue( - commit_transaction(Txn, From, C, State))) - end; - -handle_call({notify_down, ChPid}, _From, State) -> - %% we want to do this synchronously, so that auto_deleted queues - %% are no longer visible by the time we send a response to the - %% client. The queue is ultimately deleted in terminate/2; if we - %% return stop with a reply, terminate/2 will be called by - %% gen_server2 *before* the reply is sent. - case handle_ch_down(ChPid, State) of - {ok, NewState} -> reply(ok, NewState); - {stop, NewState} -> {stop, normal, ok, NewState} - end; - -handle_call({basic_get, ChPid, NoAck}, _From, - State = #q{q = #amqqueue{name = QName}}) -> - AckRequired = not NoAck, - State1 = ensure_expiry_timer(State), - case fetch(AckRequired, drop_expired_messages(State1)) of - {empty, State2} -> - reply(empty, State2); - {{Message, IsDelivered, AckTag, Remaining}, State2} -> - State3 = - case AckRequired of - true -> C = #cr{acktags = ChAckTags} = ch_record(ChPid), - true = maybe_store_ch_record( - C#cr{acktags = - sets:add_element(AckTag, - ChAckTags)}), - State2; - false -> State2 - end, - Msg = {QName, self(), AckTag, IsDelivered, Message}, - reply({ok, Remaining, Msg}, State3) - end; - -handle_call({basic_consume, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg}, - _From, State = #q{exclusive_consumer = ExistingHolder}) -> - case check_exclusive_access(ExistingHolder, ExclusiveConsume, - State) of - in_use -> - reply({error, exclusive_consume_unavailable}, State); - ok -> - C = #cr{consumer_count = ConsumerCount} = ch_record(ChPid), - Consumer = #consumer{tag = ConsumerTag, - ack_required = not NoAck}, - true = maybe_store_ch_record(C#cr{consumer_count = ConsumerCount +1, - limiter_pid = LimiterPid}), - ok = case ConsumerCount of - 0 -> rabbit_limiter:register(LimiterPid, self()); - _ -> ok - end, - ExclusiveConsumer = if ExclusiveConsume -> {ChPid, ConsumerTag}; - true -> ExistingHolder - end, - State1 = State#q{has_had_consumers = true, - exclusive_consumer = ExclusiveConsumer}, - ok = maybe_send_reply(ChPid, OkMsg), - State2 = - case is_ch_blocked(C) of - true -> State1#q{ - blocked_consumers = - add_consumer(ChPid, Consumer, - State1#q.blocked_consumers)}; - false -> run_message_queue( - State1#q{ - active_consumers = - add_consumer(ChPid, Consumer, - State1#q.active_consumers)}) - end, - emit_consumer_created(ChPid, ConsumerTag, ExclusiveConsume, - not NoAck), - reply(ok, State2) - end; - -handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, - State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(ChPid) of - not_found -> - ok = maybe_send_reply(ChPid, OkMsg), - reply(ok, State); - C = #cr{consumer_count = ConsumerCount, - limiter_pid = LimiterPid} -> - C1 = C#cr{consumer_count = ConsumerCount -1}, - maybe_store_ch_record( - case ConsumerCount of - 1 -> ok = rabbit_limiter:unregister(LimiterPid, self()), - C1#cr{limiter_pid = undefined}; - _ -> C1 - end), - emit_consumer_deleted(ChPid, ConsumerTag), - ok = maybe_send_reply(ChPid, OkMsg), - NewState = - State#q{exclusive_consumer = cancel_holder(ChPid, - ConsumerTag, - Holder), - active_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.active_consumers), - blocked_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.blocked_consumers)}, - case should_auto_delete(NewState) of - false -> reply(ok, ensure_expiry_timer(NewState)); - true -> {stop, normal, ok, NewState} - end - end; - -handle_call(stat, _From, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS, - active_consumers = ActiveConsumers} = - drop_expired_messages(ensure_expiry_timer(State)), - reply({ok, BQ:len(BQS), queue:len(ActiveConsumers)}, State1); - -handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q{backing_queue_state = BQS, backing_queue = BQ}) -> - IsEmpty = BQ:is_empty(BQS), - IsUnused = is_unused(State), - if - IfEmpty and not(IsEmpty) -> - reply({error, not_empty}, State); - IfUnused and not(IsUnused) -> - reply({error, in_use}, State); - true -> - {stop, normal, {ok, BQ:len(BQS)}, State} - end; - -handle_call(purge, _From, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {Count, BQS1} = BQ:purge(BQS), - reply({ok, Count}, State#q{backing_queue_state = BQS1}); - -handle_call({requeue, AckTags, ChPid}, From, State) -> - gen_server2:reply(From, ok), - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(requeue_and_run(AckTags, State)) - end; - -handle_call({run_backing_queue, Fun}, _From, State) -> - reply(ok, run_backing_queue(Fun, State)). - - -handle_cast({run_backing_queue, Fun}, State) -> - noreply(run_backing_queue(Fun, State)); - -handle_cast(sync_timeout, State) -> - noreply(backing_queue_idle_timeout(State#q{sync_timer_ref = undefined})); - -handle_cast({deliver, Delivery}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - noreply(deliver_or_enqueue(Delivery, State)); - -handle_cast({ack, Txn, AckTags, ChPid}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - {C1, State1} = - case Txn of - none -> ChAckTags1 = subtract_acks(ChAckTags, AckTags), - NewC = C#cr{acktags = ChAckTags1}, - BQS1 = BQ:ack(AckTags, BQS), - {NewC, State#q{backing_queue_state = BQS1}}; - _ -> BQS1 = BQ:tx_ack(Txn, AckTags, BQS), - {C#cr{txn = Txn}, - State#q{backing_queue_state = BQS1}} - end, - maybe_store_ch_record(C1), - noreply(State1) - end; - -handle_cast({reject, AckTags, Requeue, ChPid}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(case Requeue of - true -> requeue_and_run(AckTags, State); - false -> BQS1 = BQ:ack(AckTags, BQS), - State#q{backing_queue_state = BQS1} - end) - end; - -handle_cast({rollback, Txn, ChPid}, State) -> - noreply(case lookup_ch(ChPid) of - not_found -> State; - C -> rollback_transaction(Txn, C, State) - end); - -handle_cast(delete_immediately, State) -> - {stop, normal, State}; - -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - -handle_cast({notify_sent, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C = #cr{unsent_message_count = Count}) -> - C#cr{unsent_message_count = Count - 1} - end)); - -handle_cast({limit, ChPid, LimiterPid}, State) -> - noreply( - possibly_unblock( - State, ChPid, - fun (C = #cr{consumer_count = ConsumerCount, - limiter_pid = OldLimiterPid, - is_limit_active = Limited}) -> - if ConsumerCount =/= 0 andalso OldLimiterPid == undefined -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, - NewLimited = Limited andalso LimiterPid =/= undefined, - C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({flush, ChPid}, State) -> - ok = rabbit_channel:flushed(ChPid, self()), - noreply(State); - -handle_cast(update_ram_duration, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State#q{rate_timer_ref = just_measured, - backing_queue_state = BQS2}); - -handle_cast({set_ram_duration_target, Duration}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - BQS1 = BQ:set_ram_duration_target(Duration, BQS), - noreply(State#q{backing_queue_state = BQS1}); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_cast(maybe_expire, State) -> - case is_unused(State) of - true -> ?LOGDEBUG("Queue lease expired for ~p~n", [State#q.q]), - {stop, normal, State}; - false -> noreply(ensure_expiry_timer(State)) - end; - -handle_cast(drop_expired, State) -> - noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); - -handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> - %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), - State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - assert_invariant(State1), - {noreply, State1, hibernate}. - -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> - %% Exclusively owned queues must disappear with their owner. In - %% the case of clean shutdown we delete the queue synchronously in - %% the reader - although not required by the spec this seems to - %% match what people expect (see bug 21824). However we need this - %% monitor-and-async- delete in case the connection goes away - %% unexpectedly. - {stop, normal, State}; -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> - case handle_ch_down(DownPid, State) of - {ok, NewState} -> noreply(NewState); - {stop, NewState} -> {stop, normal, NewState} - end; - -handle_info(timeout, State) -> - noreply(backing_queue_idle_timeout(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; - -handle_info(Info, State) -> - ?LOGDEBUG("Info in queue: ~p~n", [Info]), - {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q{backing_queue_state = undefined}) -> - {hibernate, State}; -handle_pre_hibernate(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - stats_timer = StatsTimer}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - BQS3 = BQ:handle_pre_hibernate(BQS2), - rabbit_event:if_enabled(StatsTimer, - fun () -> - emit_stats(State, [{idle_since, now()}]) - end), - State1 = State#q{stats_timer = rabbit_event:stop_stats_timer(StatsTimer), - backing_queue_state = BQS3}, - {hibernate, stop_rate_timer(State1)}. diff --git a/src/rabbit_amqqueue_sup.erl b/src/rabbit_amqqueue_sup.erl deleted file mode 100644 index 1344956e..00000000 --- a/src/rabbit_amqqueue_sup.erl +++ /dev/null @@ -1,38 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_sup). - --behaviour(supervisor2). - --export([start_link/0, start_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor2:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Args) -> - supervisor2:start_child(?SERVER, Args). - -init([]) -> - {ok, {{simple_one_for_one_terminate, 10, 10}, - [{rabbit_amqqueue, {rabbit_amqqueue_process, start_link, []}, - temporary, ?MAX_WAIT, worker, [rabbit_amqqueue_process]}]}}. diff --git a/src/rabbit_auth_backend.erl b/src/rabbit_auth_backend.erl deleted file mode 100644 index 09820c5b..00000000 --- a/src/rabbit_auth_backend.erl +++ /dev/null @@ -1,61 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description proplist as with auth mechanisms, - %% exchanges. Currently unused. - {description, 0}, - - %% Check a user can log in, given a username and a proplist of - %% authentication information (e.g. [{password, Password}]). - %% - %% Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {error, Error} - %% Something went wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {check_user_login, 2}, - - %% Given #user, vhost path and permission, can a user access a vhost? - %% Permission is read - learn of the existence of (only relevant for - %% management plugin) - %% or write - log in - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_vhost_access, 3}, - - %% Given #user, resource and permission, can a user access a resource? - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_resource_access, 3} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_backend_internal.erl b/src/rabbit_auth_backend_internal.erl deleted file mode 100644 index 3d005845..00000000 --- a/src/rabbit_auth_backend_internal.erl +++ /dev/null @@ -1,332 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend_internal). --include("rabbit.hrl"). - --behaviour(rabbit_auth_backend). - --export([description/0]). --export([check_user_login/2, check_vhost_access/3, check_resource_access/3]). - --export([add_user/2, delete_user/1, change_password/2, set_admin/1, - clear_admin/1, list_users/0, lookup_user/1, clear_password/1]). --export([make_salt/0, check_password/2, change_password_hash/2, - hash_password/1]). --export([set_permissions/5, clear_permissions/2, - list_permissions/0, list_vhost_permissions/1, list_user_permissions/1, - list_user_vhost_permissions/2]). - --include("rabbit_auth_backend_spec.hrl"). - --ifdef(use_specs). - --type(regexp() :: binary()). - --spec(add_user/2 :: (rabbit_types:username(), rabbit_types:password()) -> 'ok'). --spec(delete_user/1 :: (rabbit_types:username()) -> 'ok'). --spec(change_password/2 :: (rabbit_types:username(), rabbit_types:password()) - -> 'ok'). --spec(clear_password/1 :: (rabbit_types:username()) -> 'ok'). --spec(make_salt/0 :: () -> binary()). --spec(check_password/2 :: (rabbit_types:password(), - rabbit_types:password_hash()) -> boolean()). --spec(change_password_hash/2 :: (rabbit_types:username(), - rabbit_types:password_hash()) -> 'ok'). --spec(hash_password/1 :: (rabbit_types:password()) - -> rabbit_types:password_hash()). --spec(set_admin/1 :: (rabbit_types:username()) -> 'ok'). --spec(clear_admin/1 :: (rabbit_types:username()) -> 'ok'). --spec(list_users/0 :: () -> [{rabbit_types:username(), boolean()}]). --spec(lookup_user/1 :: (rabbit_types:username()) - -> rabbit_types:ok(rabbit_types:internal_user()) - | rabbit_types:error('not_found')). --spec(set_permissions/5 ::(rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()) -> 'ok'). --spec(clear_permissions/2 :: (rabbit_types:username(), rabbit_types:vhost()) - -> 'ok'). --spec(list_permissions/0 :: - () -> [{rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()}]). --spec(list_vhost_permissions/1 :: - (rabbit_types:vhost()) -> [{rabbit_types:username(), - regexp(), regexp(), regexp()}]). --spec(list_user_permissions/1 :: - (rabbit_types:username()) -> [{rabbit_types:vhost(), - regexp(), regexp(), regexp()}]). --spec(list_user_vhost_permissions/2 :: - (rabbit_types:username(), rabbit_types:vhost()) - -> [{regexp(), regexp(), regexp()}]). - --endif. - -%%---------------------------------------------------------------------------- - -%% Implementation of rabbit_auth_backend - -description() -> - [{name, <<"Internal">>}, - {description, <<"Internal user / password database">>}]. - -check_user_login(Username, []) -> - internal_check_user_login(Username, fun(_) -> true end); -check_user_login(Username, [{password, Password}]) -> - internal_check_user_login( - Username, - fun(#internal_user{password_hash = Hash}) -> - check_password(Password, Hash) - end); -check_user_login(Username, AuthProps) -> - exit({unknown_auth_props, Username, AuthProps}). - -internal_check_user_login(Username, Fun) -> - Refused = {refused, "user '~s' - invalid credentials", [Username]}, - case lookup_user(Username) of - {ok, User = #internal_user{is_admin = IsAdmin}} -> - case Fun(User) of - true -> {ok, #user{username = Username, - is_admin = IsAdmin, - auth_backend = ?MODULE, - impl = User}}; - _ -> Refused - end; - {error, not_found} -> - Refused - end. - -check_vhost_access(#user{is_admin = true}, _VHostPath, read) -> - true; - -check_vhost_access(#user{username = Username}, VHostPath, _) -> - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> false; - [_R] -> true - end - end). - -check_resource_access(#user{username = Username}, - #resource{virtual_host = VHostPath, name = Name}, - Permission) -> - case mnesia:dirty_read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> - false; - [#user_permission{permission = P}] -> - PermRegexp = - case element(permission_index(Permission), P) of - %% <<"^$">> breaks Emacs' erlang mode - <<"">> -> <<$^, $$>>; - RE -> RE - end, - case re:run(Name, PermRegexp, [{capture, none}]) of - match -> true; - nomatch -> false - end - end. - -permission_index(configure) -> #permission.configure; -permission_index(write) -> #permission.write; -permission_index(read) -> #permission.read. - -%%---------------------------------------------------------------------------- -%% Manipulation of the user database - -add_user(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_user, Username}) of - [] -> - ok = mnesia:write( - rabbit_user, - #internal_user{username = Username, - password_hash = - hash_password(Password), - is_admin = false}, - write); - _ -> - mnesia:abort({user_already_exists, Username}) - end - end), - rabbit_log:info("Created user ~p~n", [Username]), - R. - -delete_user(Username) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:delete({rabbit_user, Username}), - [ok = mnesia:delete_object( - rabbit_user_permission, R, write) || - R <- mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = '_'}, - permission = '_'}, - write)], - ok - end)), - rabbit_log:info("Deleted user ~p~n", [Username]), - R. - -change_password(Username, Password) -> - change_password_hash(Username, hash_password(Password)). - -clear_password(Username) -> - change_password_hash(Username, <<"">>). - -change_password_hash(Username, PasswordHash) -> - R = update_user(Username, fun(User) -> - User#internal_user{ - password_hash = PasswordHash } - end), - rabbit_log:info("Changed password for user ~p~n", [Username]), - R. - -hash_password(Cleartext) -> - Salt = make_salt(), - Hash = salted_md5(Salt, Cleartext), - <>. - -check_password(Cleartext, <>) -> - Hash =:= salted_md5(Salt, Cleartext). - -make_salt() -> - {A1,A2,A3} = now(), - random:seed(A1, A2, A3), - Salt = random:uniform(16#ffffffff), - <>. - -salted_md5(Salt, Cleartext) -> - Salted = <>, - erlang:md5(Salted). - -set_admin(Username) -> - set_admin(Username, true). - -clear_admin(Username) -> - set_admin(Username, false). - -set_admin(Username, IsAdmin) -> - R = update_user(Username, fun(User) -> - User#internal_user{is_admin = IsAdmin} - end), - rabbit_log:info("Set user admin flag for user ~p to ~p~n", - [Username, IsAdmin]), - R. - -update_user(Username, Fun) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - {ok, User} = lookup_user(Username), - ok = mnesia:write(rabbit_user, Fun(User), write) - end)). - -list_users() -> - [{Username, IsAdmin} || - #internal_user{username = Username, is_admin = IsAdmin} <- - mnesia:dirty_match_object(rabbit_user, #internal_user{_ = '_'})]. - -lookup_user(Username) -> - rabbit_misc:dirty_read({rabbit_user, Username}). - -validate_regexp(RegexpBin) -> - Regexp = binary_to_list(RegexpBin), - case re:compile(Regexp) of - {ok, _} -> ok; - {error, Reason} -> throw({error, {invalid_regexp, Regexp, Reason}}) - end. - -set_permissions(Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm) -> - lists:map(fun validate_regexp/1, [ConfigurePerm, WritePerm, ReadPerm]), - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> ok = mnesia:write( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}}, - write) - end)). - - -clear_permissions(Username, VHostPath) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> - ok = mnesia:delete({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) - end)). - -list_permissions() -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(match_user_vhost('_', '_'))]. - -list_vhost_permissions(VHostPath) -> - [{Username, ConfigurePerm, WritePerm, ReadPerm} || - {Username, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_vhost:with( - VHostPath, match_user_vhost('_', VHostPath)))]. - -list_user_permissions(Username) -> - [{VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {_, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user( - Username, match_user_vhost(Username, '_')))]. - -list_user_vhost_permissions(Username, VHostPath) -> - [{ConfigurePerm, WritePerm, ReadPerm} || - {_, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user_and_vhost( - Username, VHostPath, - match_user_vhost(Username, VHostPath)))]. - -list_permissions(QueryThunk) -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - #user_permission{user_vhost = #user_vhost{username = Username, - virtual_host = VHostPath}, - permission = #permission{ configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}} <- - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction(QueryThunk)]. - -match_user_vhost(Username, VHostPath) -> - fun () -> mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = '_'}, - read) - end. diff --git a/src/rabbit_auth_mechanism.erl b/src/rabbit_auth_mechanism.erl deleted file mode 100644 index 897199ee..00000000 --- a/src/rabbit_auth_mechanism.erl +++ /dev/null @@ -1,46 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description. - {description, 0}, - - %% If this mechanism is enabled, should it be offered for a given socket? - %% (primarily so EXTERNAL can be SSL-only) - {should_offer, 1}, - - %% Called before authentication starts. Should create a state - %% object to be passed through all the stages of authentication. - {init, 1}, - - %% Handle a stage of authentication. Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {challenge, Challenge, NextState} - %% Another round is needed. Here's the state I want next time. - %% {protocol_error, Msg, Args} - %% Client got the protocol wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {handle_response, 2} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_mechanism_amqplain.erl b/src/rabbit_auth_mechanism_amqplain.erl deleted file mode 100644 index b8682a46..00000000 --- a/src/rabbit_auth_mechanism_amqplain.erl +++ /dev/null @@ -1,58 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_amqplain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism amqplain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"AMQPLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% AMQPLAIN, as used by Qpid Python test suite. The 0-8 spec actually -%% defines this as PLAIN, but in 0-9 that definition is gone, instead -%% referring generically to "SASL security mechanism", i.e. the above. - -description() -> - [{name, <<"AMQPLAIN">>}, - {description, <<"QPid AMQPLAIN mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - LoginTable = rabbit_binary_parser:parse_table(Response), - case {lists:keysearch(<<"LOGIN">>, 1, LoginTable), - lists:keysearch(<<"PASSWORD">>, 1, LoginTable)} of - {{value, {_, longstr, User}}, - {value, {_, longstr, Pass}}} -> - rabbit_access_control:check_user_pass_login(User, Pass); - _ -> - {protocol_error, - "AMQPLAIN auth info ~w is missing LOGIN or PASSWORD field", - [LoginTable]} - end. diff --git a/src/rabbit_auth_mechanism_cr_demo.erl b/src/rabbit_auth_mechanism_cr_demo.erl deleted file mode 100644 index 77aa34ea..00000000 --- a/src/rabbit_auth_mechanism_cr_demo.erl +++ /dev/null @@ -1,62 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_cr_demo). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism cr-demo"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"RABBIT-CR-DEMO">>, - ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --record(state, {username = undefined}). - -%% Provides equivalent security to PLAIN but demos use of Connection.Secure(Ok) -%% START-OK: Username -%% SECURE: "Please tell me your password" -%% SECURE-OK: "My password is ~s", [Password] - -description() -> - [{name, <<"RABBIT-CR-DEMO">>}, - {description, <<"RabbitMQ Demo challenge-response authentication " - "mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - #state{}. - -handle_response(Response, State = #state{username = undefined}) -> - {challenge, <<"Please tell me your password">>, - State#state{username = Response}}; - -handle_response(Response, #state{username = Username}) -> - case Response of - <<"My password is ", Password/binary>> -> - rabbit_access_control:check_user_pass_login(Username, Password); - _ -> - {protocol_error, "Invalid response '~s'", [Response]} - end. diff --git a/src/rabbit_auth_mechanism_plain.erl b/src/rabbit_auth_mechanism_plain.erl deleted file mode 100644 index e2f9bff9..00000000 --- a/src/rabbit_auth_mechanism_plain.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_plain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism plain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"PLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% SASL PLAIN, as used by the Qpid Java client and our clients. Also, -%% apparently, by OpenAMQ. - -%% TODO: once the minimum erlang becomes R13B03, reimplement this -%% using the binary module - that makes use of BIFs to do binary -%% matching and will thus be much faster. - -description() -> - [{name, <<"PLAIN">>}, - {description, <<"SASL PLAIN authentication mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - case extract_user_pass(Response) of - {ok, User, Pass} -> - rabbit_access_control:check_user_pass_login(User, Pass); - error -> - {protocol_error, "response ~p invalid", [Response]} - end. - -extract_user_pass(Response) -> - case extract_elem(Response) of - {ok, User, Response1} -> case extract_elem(Response1) of - {ok, Pass, <<>>} -> {ok, User, Pass}; - _ -> error - end; - error -> error - end. - -extract_elem(<<0:8, Rest/binary>>) -> - Count = next_null_pos(Rest), - <> = Rest, - {ok, Elem, Rest1}; -extract_elem(_) -> - error. - -next_null_pos(Bin) -> - next_null_pos(Bin, 0). - -next_null_pos(<<>>, Count) -> Count; -next_null_pos(<<0:8, _Rest/binary>>, Count) -> Count; -next_null_pos(<<_:8, Rest/binary>>, Count) -> next_null_pos(Rest, Count + 1). diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl deleted file mode 100644 index a15ff846..00000000 --- a/src/rabbit_backing_queue.erl +++ /dev/null @@ -1,147 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_backing_queue). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% Called on startup with a list of durable queue names. The - %% queues aren't being started at this point, but this call - %% allows the backing queue to perform any checking necessary for - %% the consistency of those queues, or initialise any other - %% shared resources. - {start, 1}, - - %% Called to tear down any state/resources. NB: Implementations - %% should not depend on this function being called on shutdown - %% and instead should hook into the rabbit supervision hierarchy. - {stop, 0}, - - %% Initialise the backing queue and its state. - %% - %% Takes - %% 1. the queue name - %% 2. a boolean indicating whether the queue is durable - %% 3. a boolean indicating whether the queue is an existing queue - %% that should be recovered - %% 4. an asynchronous callback which accepts a function from - %% state to state and invokes it with the current backing - %% queue state. This is useful for handling events, e.g. when - %% the backing queue does not have its own process to receive - %% such events, or when the processing of an event results in - %% a state transition the queue logic needs to know about - %% (such as messages getting confirmed). - %% 5. a synchronous callback. Same as the asynchronous callback - %% but waits for completion and returns 'error' on error. - {init, 5}, - - %% Called on queue shutdown when queue isn't being deleted. - {terminate, 1}, - - %% Called when the queue is terminating and needs to delete all - %% its content. - {delete_and_terminate, 1}, - - %% Remove all messages in the queue, but not messages which have - %% been fetched and are pending acks. - {purge, 1}, - - %% Publish a message. - {publish, 3}, - - %% Called for messages which have already been passed straight - %% out to a client. The queue will be empty for these calls - %% (i.e. saves the round trip through the backing queue). - {publish_delivered, 4}, - - %% Return ids of messages which have been confirmed since - %% the last invocation of this function (or initialisation). - {drain_confirmed, 1}, - - %% Drop messages from the head of the queue while the supplied - %% predicate returns true. - {dropwhile, 2}, - - %% Produce the next message. - {fetch, 2}, - - %% Acktags supplied are for messages which can now be forgotten - %% about. Must return 1 msg_id per Ack, in the same order as Acks. - {ack, 2}, - - %% A publish, but in the context of a transaction. - {tx_publish, 4}, - - %% Acks, but in the context of a transaction. - {tx_ack, 3}, - - %% Undo anything which has been done in the context of the - %% specified transaction. - {tx_rollback, 2}, - - %% Commit a transaction. The Fun passed in must be called once - %% the messages have really been commited. This CPS permits the - %% possibility of commit coalescing. - {tx_commit, 4}, - - %% Reinsert messages into the queue which have already been - %% delivered and were pending acknowledgement. - {requeue, 3}, - - %% How long is my queue? - {len, 1}, - - %% Is my queue empty? - {is_empty, 1}, - - %% For the next three functions, the assumption is that you're - %% monitoring something like the ingress and egress rates of the - %% queue. The RAM duration is thus the length of time represented - %% by the messages held in RAM given the current rates. If you - %% want to ignore all of this stuff, then do so, and return 0 in - %% ram_duration/1. - - %% The target is to have no more messages in RAM than indicated - %% by the duration and the current queue rates. - {set_ram_duration_target, 2}, - - %% Optionally recalculate the duration internally (likely to be - %% just update your internal rates), and report how many seconds - %% the messages in RAM represent given the current rates of the - %% queue. - {ram_duration, 1}, - - %% Should 'idle_timeout' be called as soon as the queue process - %% can manage (either on an empty mailbox, or when a timer - %% fires)? - {needs_idle_timeout, 1}, - - %% Called (eventually) after needs_idle_timeout returns - %% 'true'. Note this may be called more than once for each 'true' - %% returned from needs_idle_timeout. - {idle_timeout, 1}, - - %% Called immediately before the queue hibernates. - {handle_pre_hibernate, 1}, - - %% Exists for debugging purposes, to be able to expose state via - %% rabbitmqctl list_queues backing_queue_status - {status, 1} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl deleted file mode 100644 index 3cf73e80..00000000 --- a/src/rabbit_basic.erl +++ /dev/null @@ -1,189 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_basic). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([publish/1, message/3, message/4, properties/1, delivery/5]). --export([publish/4, publish/7]). --export([build_content/2, from_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(properties_input() :: - (rabbit_framing:amqp_property_record() | [{atom(), any()}])). --type(publish_result() :: - ({ok, rabbit_router:routing_result(), [pid()]} - | rabbit_types:error('not_found'))). - --spec(publish/1 :: - (rabbit_types:delivery()) -> publish_result()). --spec(delivery/5 :: - (boolean(), boolean(), rabbit_types:maybe(rabbit_types:txn()), - rabbit_types:message(), undefined | integer()) -> - rabbit_types:delivery()). --spec(message/4 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - properties_input(), binary()) -> rabbit_types:message()). --spec(message/3 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - rabbit_types:decoded_content()) -> - rabbit_types:ok_or_error2(rabbit_types:message(), any())). --spec(properties/1 :: - (properties_input()) -> rabbit_framing:amqp_property_record()). --spec(publish/4 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - properties_input(), binary()) -> publish_result()). --spec(publish/7 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - boolean(), boolean(), rabbit_types:maybe(rabbit_types:txn()), - properties_input(), binary()) -> publish_result()). --spec(build_content/2 :: (rabbit_framing:amqp_property_record(), binary()) -> - rabbit_types:content()). --spec(from_content/1 :: (rabbit_types:content()) -> - {rabbit_framing:amqp_property_record(), binary()}). - --endif. - -%%---------------------------------------------------------------------------- - -publish(Delivery = #delivery{ - message = #basic_message{exchange_name = ExchangeName}}) -> - case rabbit_exchange:lookup(ExchangeName) of - {ok, X} -> - {RoutingRes, DeliveredQPids} = rabbit_exchange:publish(X, Delivery), - {ok, RoutingRes, DeliveredQPids}; - Other -> - Other - end. - -delivery(Mandatory, Immediate, Txn, Message, MsgSeqNo) -> - #delivery{mandatory = Mandatory, immediate = Immediate, txn = Txn, - sender = self(), message = Message, msg_seq_no = MsgSeqNo}. - -build_content(Properties, BodyBin) -> - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - #content{class_id = ClassId, - properties = Properties, - properties_bin = none, - protocol = none, - payload_fragments_rev = [BodyBin]}. - -from_content(Content) -> - #content{class_id = ClassId, - properties = Props, - payload_fragments_rev = FragmentsRev} = - rabbit_binary_parser:ensure_content_decoded(Content), - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - {Props, list_to_binary(lists:reverse(FragmentsRev))}. - -%% This breaks the spec rule forbidding message modification -strip_header(#content{properties = #'P_basic'{headers = undefined}} - = DecodedContent, _Key) -> - DecodedContent; -strip_header(#content{properties = Props = #'P_basic'{headers = Headers}} - = DecodedContent, Key) -> - case lists:keysearch(Key, 1, Headers) of - false -> DecodedContent; - {value, Found} -> Headers0 = lists:delete(Found, Headers), - rabbit_binary_generator:clear_encoded_content( - DecodedContent#content{ - properties = Props#'P_basic'{ - headers = Headers0}}) - end. - -message(ExchangeName, RoutingKey, - #content{properties = Props} = DecodedContent) -> - try - {ok, #basic_message{ - exchange_name = ExchangeName, - content = strip_header(DecodedContent, ?DELETED_HEADER), - id = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent), - routing_keys = [RoutingKey | - header_routes(Props#'P_basic'.headers)]}} - catch - {error, _Reason} = Error -> Error - end. - -message(ExchangeName, RoutingKey, RawProperties, BodyBin) -> - Properties = properties(RawProperties), - Content = build_content(Properties, BodyBin), - {ok, Msg} = message(ExchangeName, RoutingKey, Content), - Msg. - -properties(P = #'P_basic'{}) -> - P; -properties(P) when is_list(P) -> - %% Yes, this is O(length(P) * record_info(size, 'P_basic') / 2), - %% i.e. slow. Use the definition of 'P_basic' directly if - %% possible! - lists:foldl(fun ({Key, Value}, Acc) -> - case indexof(record_info(fields, 'P_basic'), Key) of - 0 -> throw({unknown_basic_property, Key}); - N -> setelement(N + 1, Acc, Value) - end - end, #'P_basic'{}, P). - -indexof(L, Element) -> indexof(L, Element, 1). - -indexof([], _Element, _N) -> 0; -indexof([Element | _Rest], Element, N) -> N; -indexof([_ | Rest], Element, N) -> indexof(Rest, Element, N + 1). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(ExchangeName, RoutingKeyBin, Properties, BodyBin) -> - publish(ExchangeName, RoutingKeyBin, false, false, none, Properties, - BodyBin). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(ExchangeName, RoutingKeyBin, Mandatory, Immediate, Txn, Properties, - BodyBin) -> - publish(delivery(Mandatory, Immediate, Txn, - message(ExchangeName, RoutingKeyBin, - properties(Properties), BodyBin), - undefined)). - -is_message_persistent(#content{properties = #'P_basic'{ - delivery_mode = Mode}}) -> - case Mode of - 1 -> false; - 2 -> true; - undefined -> false; - Other -> throw({error, {delivery_mode_unknown, Other}}) - end. - -%% Extract CC routes from headers -header_routes(undefined) -> - []; -header_routes(HeadersTable) -> - lists:append( - [case rabbit_misc:table_lookup(HeadersTable, HeaderKey) of - {array, Routes} -> [Route || {longstr, Route} <- Routes]; - undefined -> []; - {Type, _Val} -> throw({error, {unacceptable_type_in_header, - Type, - binary_to_list(HeaderKey)}}) - end || HeaderKey <- ?ROUTING_HEADERS]). diff --git a/src/rabbit_binary_generator.erl b/src/rabbit_binary_generator.erl deleted file mode 100644 index 68511a32..00000000 --- a/src/rabbit_binary_generator.erl +++ /dev/null @@ -1,337 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_generator). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - -%% EMPTY_CONTENT_BODY_FRAME_SIZE, 8 = 1 + 2 + 4 + 1 -%% - 1 byte of frame type -%% - 2 bytes of channel number -%% - 4 bytes of frame payload length -%% - 1 byte of payload trailer FRAME_END byte -%% See definition of check_empty_content_body_frame_size/0, -%% an assertion called at startup. --define(EMPTY_CONTENT_BODY_FRAME_SIZE, 8). - --export([build_simple_method_frame/3, - build_simple_content_frames/4, - build_heartbeat_frame/0]). --export([generate_table/1, encode_properties/2]). --export([check_empty_content_body_frame_size/0]). --export([ensure_content_encoded/2, clear_encoded_content/1]). --export([map_exception/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame() :: [binary()]). - --spec(build_simple_method_frame/3 :: - (rabbit_channel:channel_number(), rabbit_framing:amqp_method_record(), - rabbit_types:protocol()) - -> frame()). --spec(build_simple_content_frames/4 :: - (rabbit_channel:channel_number(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> [frame()]). --spec(build_heartbeat_frame/0 :: () -> frame()). --spec(generate_table/1 :: (rabbit_framing:amqp_table()) -> binary()). --spec(encode_properties/2 :: - ([rabbit_framing:amqp_property_type()], [any()]) -> binary()). --spec(check_empty_content_body_frame_size/0 :: () -> 'ok'). --spec(ensure_content_encoded/2 :: - (rabbit_types:content(), rabbit_types:protocol()) -> - rabbit_types:encoded_content()). --spec(clear_encoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:unencoded_content()). --spec(map_exception/3 :: (rabbit_channel:channel_number(), - rabbit_types:amqp_error() | any(), - rabbit_types:protocol()) -> - {rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record()}). - --endif. - -%%---------------------------------------------------------------------------- - -build_simple_method_frame(ChannelInt, MethodRecord, Protocol) -> - MethodFields = Protocol:encode_method_fields(MethodRecord), - MethodName = rabbit_misc:method_record_type(MethodRecord), - {ClassId, MethodId} = Protocol:method_id(MethodName), - create_frame(1, ChannelInt, [<>, MethodFields]). - -build_simple_content_frames(ChannelInt, Content, FrameMax, Protocol) -> - #content{class_id = ClassId, - properties_bin = ContentPropertiesBin, - payload_fragments_rev = PayloadFragmentsRev} = - ensure_content_encoded(Content, Protocol), - {BodySize, ContentFrames} = - build_content_frames(PayloadFragmentsRev, FrameMax, ChannelInt), - HeaderFrame = create_frame(2, ChannelInt, - [<>, - ContentPropertiesBin]), - [HeaderFrame | ContentFrames]. - -build_content_frames(FragsRev, FrameMax, ChannelInt) -> - BodyPayloadMax = if FrameMax == 0 -> - iolist_size(FragsRev); - true -> - FrameMax - ?EMPTY_CONTENT_BODY_FRAME_SIZE - end, - build_content_frames(0, [], BodyPayloadMax, [], - lists:reverse(FragsRev), BodyPayloadMax, ChannelInt). - -build_content_frames(SizeAcc, FramesAcc, _FragSizeRem, [], - [], _BodyPayloadMax, _ChannelInt) -> - {SizeAcc, lists:reverse(FramesAcc)}; -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - Frags, BodyPayloadMax, ChannelInt) - when FragSizeRem == 0 orelse Frags == [] -> - Frame = create_frame(3, ChannelInt, lists:reverse(FragAcc)), - FrameSize = BodyPayloadMax - FragSizeRem, - build_content_frames(SizeAcc + FrameSize, [Frame | FramesAcc], - BodyPayloadMax, [], Frags, BodyPayloadMax, ChannelInt); -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - [Frag | Frags], BodyPayloadMax, ChannelInt) -> - Size = size(Frag), - {NewFragSizeRem, NewFragAcc, NewFrags} = - if Size == 0 -> {FragSizeRem, FragAcc, Frags}; - Size =< FragSizeRem -> {FragSizeRem - Size, [Frag | FragAcc], Frags}; - true -> <> = - Frag, - {0, [Head | FragAcc], [Tail | Frags]} - end, - build_content_frames(SizeAcc, FramesAcc, NewFragSizeRem, NewFragAcc, - NewFrags, BodyPayloadMax, ChannelInt). - -build_heartbeat_frame() -> - create_frame(?FRAME_HEARTBEAT, 0, <<>>). - -create_frame(TypeInt, ChannelInt, PayloadBin) when is_binary(PayloadBin) -> - [<>, PayloadBin, <>]; -create_frame(TypeInt, ChannelInt, Payload) -> - create_frame(TypeInt, ChannelInt, list_to_binary(Payload)). - -%% table_field_to_binary supports the AMQP 0-8/0-9 standard types, S, -%% I, D, T and F, as well as the QPid extensions b, d, f, l, s, t, x, -%% and V. - -table_field_to_binary({FName, Type, Value}) -> - [short_string_to_binary(FName) | field_value_to_binary(Type, Value)]. - -field_value_to_binary(longstr, Value) -> - ["S", long_string_to_binary(Value)]; - -field_value_to_binary(signedint, Value) -> - ["I", <>]; - -field_value_to_binary(decimal, {Before, After}) -> - ["D", Before, <>]; - -field_value_to_binary(timestamp, Value) -> - ["T", <>]; - -field_value_to_binary(table, Value) -> - ["F", table_to_binary(Value)]; - -field_value_to_binary(array, Value) -> - ["A", array_to_binary(Value)]; - -field_value_to_binary(byte, Value) -> - ["b", <>]; - -field_value_to_binary(double, Value) -> - ["d", <>]; - -field_value_to_binary(float, Value) -> - ["f", <>]; - -field_value_to_binary(long, Value) -> - ["l", <>]; - -field_value_to_binary(short, Value) -> - ["s", <>]; - -field_value_to_binary(bool, Value) -> - ["t", if Value -> 1; true -> 0 end]; - -field_value_to_binary(binary, Value) -> - ["x", long_string_to_binary(Value)]; - -field_value_to_binary(void, _Value) -> - ["V"]. - -table_to_binary(Table) when is_list(Table) -> - BinTable = generate_table(Table), - [<<(size(BinTable)):32>>, BinTable]. - -array_to_binary(Array) when is_list(Array) -> - BinArray = generate_array(Array), - [<<(size(BinArray)):32>>, BinArray]. - -generate_table(Table) when is_list(Table) -> - list_to_binary(lists:map(fun table_field_to_binary/1, Table)). - -generate_array(Array) when is_list(Array) -> - list_to_binary(lists:map( - fun ({Type, Value}) -> field_value_to_binary(Type, Value) end, - Array)). - -short_string_to_binary(String) when is_binary(String) -> - Len = size(String), - if Len < 256 -> [<<(size(String)):8>>, String]; - true -> exit(content_properties_shortstr_overflow) - end; -short_string_to_binary(String) -> - StringLength = length(String), - if StringLength < 256 -> [<>, String]; - true -> exit(content_properties_shortstr_overflow) - end. - -long_string_to_binary(String) when is_binary(String) -> - [<<(size(String)):32>>, String]; -long_string_to_binary(String) -> - [<<(length(String)):32>>, String]. - -encode_properties([], []) -> - <<0, 0>>; -encode_properties(TypeList, ValueList) -> - encode_properties(0, TypeList, ValueList, 0, [], []). - -encode_properties(_Bit, [], [], FirstShortAcc, FlagsAcc, PropsAcc) -> - list_to_binary([lists:reverse(FlagsAcc), <>, lists:reverse(PropsAcc)]); -encode_properties(_Bit, [], _ValueList, _FirstShortAcc, _FlagsAcc, _PropsAcc) -> - exit(content_properties_values_overflow); -encode_properties(15, TypeList, ValueList, FirstShortAcc, FlagsAcc, PropsAcc) -> - NewFlagsShort = FirstShortAcc bor 1, % set the continuation low bit - encode_properties(0, TypeList, ValueList, 0, [<> | FlagsAcc], PropsAcc); -encode_properties(Bit, [bit | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - true -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), FlagsAcc, PropsAcc); - false -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - Other -> exit({content_properties_illegal_bit_value, Other}) - end; -encode_properties(Bit, [T | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - undefined -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - _ -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), - FlagsAcc, - [encode_property(T, Value) | PropsAcc]) - end. - -encode_property(shortstr, String) -> - Len = size(String), - if Len < 256 -> <>; - true -> exit(content_properties_shortstr_overflow) - end; -encode_property(longstr, String) -> - Len = size(String), <>; -encode_property(octet, Int) -> - <>; -encode_property(shortint, Int) -> - <>; -encode_property(longint, Int) -> - <>; -encode_property(longlongint, Int) -> - <>; -encode_property(timestamp, Int) -> - <>; -encode_property(table, Table) -> - table_to_binary(Table). - -check_empty_content_body_frame_size() -> - %% Intended to ensure that EMPTY_CONTENT_BODY_FRAME_SIZE is - %% defined correctly. - ComputedSize = size(list_to_binary(create_frame(?FRAME_BODY, 0, <<>>))), - if ComputedSize == ?EMPTY_CONTENT_BODY_FRAME_SIZE -> - ok; - true -> - exit({incorrect_empty_content_body_frame_size, - ComputedSize, ?EMPTY_CONTENT_BODY_FRAME_SIZE}) - end. - -ensure_content_encoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}, Protocol) - when PropBin =/= none -> - Content; -ensure_content_encoded(Content = #content{properties = none, - properties_bin = PropBin, - protocol = Protocol}, Protocol1) - when PropBin =/= none -> - Props = Protocol:decode_properties(Content#content.class_id, PropBin), - Content#content{properties = Props, - properties_bin = Protocol1:encode_properties(Props), - protocol = Protocol1}; -ensure_content_encoded(Content = #content{properties = Props}, Protocol) - when Props =/= none -> - Content#content{properties_bin = Protocol:encode_properties(Props), - protocol = Protocol}. - -clear_encoded_content(Content = #content{properties_bin = none, - protocol = none}) -> - Content; -clear_encoded_content(Content = #content{properties = none}) -> - %% Only clear when we can rebuild the properties_bin later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_encoded_content(Content = #content{}) -> - Content#content{properties_bin = none, protocol = none}. - -%% NB: this function is also used by the Erlang client -map_exception(Channel, Reason, Protocol) -> - {SuggestedClose, ReplyCode, ReplyText, FailedMethod} = - lookup_amqp_exception(Reason, Protocol), - {ClassId, MethodId} = case FailedMethod of - {_, _} -> FailedMethod; - none -> {0, 0}; - _ -> Protocol:method_id(FailedMethod) - end, - case SuggestedClose orelse (Channel == 0) of - true -> {0, #'connection.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}}; - false -> {Channel, #'channel.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}} - end. - -lookup_amqp_exception(#amqp_error{name = Name, - explanation = Expl, - method = Method}, - Protocol) -> - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(Name), - ExplBin = amqp_exception_explanation(Text, Expl), - {ShouldClose, Code, ExplBin, Method}; -lookup_amqp_exception(Other, Protocol) -> - rabbit_log:warning("Non-AMQP exit reason '~p'~n", [Other]), - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(internal_error), - {ShouldClose, Code, Text, none}. - -amqp_exception_explanation(Text, Expl) -> - ExplBin = list_to_binary(Expl), - CompleteTextBin = <>, - if size(CompleteTextBin) > 255 -> <>; - true -> CompleteTextBin - end. diff --git a/src/rabbit_binary_parser.erl b/src/rabbit_binary_parser.erl deleted file mode 100644 index 88026bab..00000000 --- a/src/rabbit_binary_parser.erl +++ /dev/null @@ -1,165 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_parser). - --include("rabbit.hrl"). - --export([parse_table/1, parse_properties/2]). --export([ensure_content_decoded/1, clear_decoded_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(parse_table/1 :: (binary()) -> rabbit_framing:amqp_table()). --spec(parse_properties/2 :: - ([rabbit_framing:amqp_property_type()], binary()) -> [any()]). --spec(ensure_content_decoded/1 :: - (rabbit_types:content()) -> rabbit_types:decoded_content()). --spec(clear_decoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:undecoded_content()). - --endif. - -%%---------------------------------------------------------------------------- - -%% parse_table supports the AMQP 0-8/0-9 standard types, S, I, D, T -%% and F, as well as the QPid extensions b, d, f, l, s, t, x, and V. - -parse_table(<<>>) -> - []; -parse_table(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{NameString, Type, Value} | parse_table(Rest)]. - -parse_array(<<>>) -> - []; -parse_array(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{Type, Value} | parse_array(Rest)]. - -parse_field_value(<<"S", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {longstr, ValueString, Rest}; - -parse_field_value(<<"I", Value:32/signed, Rest/binary>>) -> - {signedint, Value, Rest}; - -parse_field_value(<<"D", Before:8/unsigned, After:32/unsigned, Rest/binary>>) -> - {decimal, {Before, After}, Rest}; - -parse_field_value(<<"T", Value:64/unsigned, Rest/binary>>) -> - {timestamp, Value, Rest}; - -parse_field_value(<<"F", VLen:32/unsigned, Table:VLen/binary, Rest/binary>>) -> - {table, parse_table(Table), Rest}; - -parse_field_value(<<"A", VLen:32/unsigned, Array:VLen/binary, Rest/binary>>) -> - {array, parse_array(Array), Rest}; - -parse_field_value(<<"b", Value:8/unsigned, Rest/binary>>) -> - {byte, Value, Rest}; - -parse_field_value(<<"d", Value:64/float, Rest/binary>>) -> - {double, Value, Rest}; - -parse_field_value(<<"f", Value:32/float, Rest/binary>>) -> - {float, Value, Rest}; - -parse_field_value(<<"l", Value:64/signed, Rest/binary>>) -> - {long, Value, Rest}; - -parse_field_value(<<"s", Value:16/signed, Rest/binary>>) -> - {short, Value, Rest}; - -parse_field_value(<<"t", Value:8/unsigned, Rest/binary>>) -> - {bool, (Value /= 0), Rest}; - -parse_field_value(<<"x", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {binary, ValueString, Rest}; - -parse_field_value(<<"V", Rest/binary>>) -> - {void, undefined, Rest}. - - -parse_properties([], _PropBin) -> - []; -parse_properties(TypeList, PropBin) -> - FlagCount = length(TypeList), - %% round up to the nearest multiple of 15 bits, since the 16th bit - %% in each short is a "continuation" bit. - FlagsLengthBytes = trunc((FlagCount + 14) / 15) * 2, - <> = PropBin, - <> = Flags, - parse_properties(0, TypeList, [], FirstShort, Remainder, Properties). - -parse_properties(_Bit, [], Acc, _FirstShort, - _Remainder, <<>>) -> - lists:reverse(Acc); -parse_properties(_Bit, [], _Acc, _FirstShort, - _Remainder, _LeftoverBin) -> - exit(content_properties_binary_overflow); -parse_properties(15, TypeList, Acc, _OldFirstShort, - <>, Properties) -> - parse_properties(0, TypeList, Acc, NewFirstShort, Remainder, Properties); -parse_properties(Bit, [Type | TypeListRest], Acc, FirstShort, - Remainder, Properties) -> - {Value, Rest} = - if (FirstShort band (1 bsl (15 - Bit))) /= 0 -> - parse_property(Type, Properties); - Type == bit -> {false , Properties}; - true -> {undefined, Properties} - end, - parse_properties(Bit + 1, TypeListRest, [Value | Acc], FirstShort, - Remainder, Rest). - -parse_property(shortstr, <>) -> - {String, Rest}; -parse_property(longstr, <>) -> - {String, Rest}; -parse_property(octet, <>) -> - {Int, Rest}; -parse_property(shortint, <>) -> - {Int, Rest}; -parse_property(longint, <>) -> - {Int, Rest}; -parse_property(longlongint, <>) -> - {Int, Rest}; -parse_property(timestamp, <>) -> - {Int, Rest}; -parse_property(bit, Rest) -> - {true, Rest}; -parse_property(table, <>) -> - {parse_table(Table), Rest}. - -ensure_content_decoded(Content = #content{properties = Props}) - when Props =/= none -> - Content; -ensure_content_decoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}) - when PropBin =/= none -> - Content#content{properties = Protocol:decode_properties( - Content#content.class_id, PropBin)}. - -clear_decoded_content(Content = #content{properties = none}) -> - Content; -clear_decoded_content(Content = #content{properties_bin = none}) -> - %% Only clear when we can rebuild the properties later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_decoded_content(Content = #content{}) -> - Content#content{properties = none}. diff --git a/src/rabbit_binding.erl b/src/rabbit_binding.erl deleted file mode 100644 index 7ddb7814..00000000 --- a/src/rabbit_binding.erl +++ /dev/null @@ -1,422 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binding). --include("rabbit.hrl"). - --export([recover/0, exists/1, add/1, remove/1, add/2, remove/2, list/1]). --export([list_for_source/1, list_for_destination/1, - list_for_source_and_destination/2]). --export([new_deletions/0, combine_deletions/2, add_deletion/3, - process_deletions/2]). --export([info_keys/0, info/1, info/2, info_all/1, info_all/2]). -%% these must all be run inside a mnesia tx --export([has_for_source/1, remove_for_source/1, - remove_for_destination/1, remove_transient_for_destination/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([key/0, deletions/0]). - --type(key() :: binary()). - --type(bind_errors() :: rabbit_types:error('source_not_found' | - 'destination_not_found' | - 'source_and_destination_not_found')). --type(bind_res() :: 'ok' | bind_errors()). --type(inner_fun() :: - fun((rabbit_types:exchange(), - rabbit_types:exchange() | rabbit_types:amqqueue()) -> - rabbit_types:ok_or_error(rabbit_types:amqp_error()))). --type(bindings() :: [rabbit_types:binding()]). --type(add_res() :: bind_res() | rabbit_misc:const(bind_res())). --type(bind_or_error() :: bind_res() | rabbit_types:error('binding_not_found')). --type(remove_res() :: bind_or_error() | rabbit_misc:const(bind_or_error())). - --opaque(deletions() :: dict()). - --spec(recover/0 :: () -> [rabbit_types:binding()]). --spec(exists/1 :: (rabbit_types:binding()) -> boolean() | bind_errors()). --spec(add/1 :: (rabbit_types:binding()) -> add_res()). --spec(remove/1 :: (rabbit_types:binding()) -> remove_res()). --spec(add/2 :: (rabbit_types:binding(), inner_fun()) -> add_res()). --spec(remove/2 :: (rabbit_types:binding(), inner_fun()) -> remove_res()). --spec(list/1 :: (rabbit_types:vhost()) -> bindings()). --spec(list_for_source/1 :: - (rabbit_types:binding_source()) -> bindings()). --spec(list_for_destination/1 :: - (rabbit_types:binding_destination()) -> bindings()). --spec(list_for_source_and_destination/2 :: - (rabbit_types:binding_source(), rabbit_types:binding_destination()) -> - bindings()). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:binding()) -> rabbit_types:infos()). --spec(info/2 :: (rabbit_types:binding(), rabbit_types:info_keys()) -> - rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(has_for_source/1 :: (rabbit_types:binding_source()) -> boolean()). --spec(remove_for_source/1 :: (rabbit_types:binding_source()) -> bindings()). --spec(remove_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(remove_transient_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(process_deletions/2 :: (deletions(), boolean()) -> 'ok'). --spec(combine_deletions/2 :: (deletions(), deletions()) -> deletions()). --spec(add_deletion/3 :: (rabbit_exchange:name(), - {'undefined' | rabbit_types:exchange(), - 'deleted' | 'not_deleted', - bindings()}, deletions()) -> deletions()). --spec(new_deletions/0 :: () -> deletions()). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]). - -recover() -> - rabbit_misc:table_fold( - fun (Route = #route{binding = B}, Acc) -> - {_, ReverseRoute} = route_with_reverse(Route), - ok = mnesia:write(rabbit_route, Route, write), - ok = mnesia:write(rabbit_reverse_route, ReverseRoute, write), - [B | Acc] - end, [], rabbit_durable_route). - -exists(Binding) -> - binding_action( - Binding, fun (_Src, _Dst, B) -> - rabbit_misc:const(mnesia:read({rabbit_route, B}) /= []) - end). - -add(Binding) -> add(Binding, fun (_Src, _Dst) -> ok end). - -remove(Binding) -> remove(Binding, fun (_Src, _Dst) -> ok end). - -add(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - %% this argument is used to check queue exclusivity; - %% in general, we want to fail on that in preference to - %% anything else - case InnerFun(Src, Dst) of - ok -> - case mnesia:read({rabbit_route, B}) of - [] -> ok = sync_binding(B, all_durable([Src, Dst]), - fun mnesia:write/3), - fun (Tx) -> - ok = rabbit_exchange:callback( - Src, add_binding, [Tx, Src, B]), - rabbit_event:notify_if( - not Tx, binding_created, info(B)) - end; - [_] -> fun rabbit_misc:const_ok/1 - end; - {error, _} = Err -> - rabbit_misc:const(Err) - end - end). - -remove(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - Result = - case mnesia:match_object(rabbit_route, #route{binding = B}, - write) of - [] -> - {error, binding_not_found}; - [_] -> - case InnerFun(Src, Dst) of - ok -> - ok = sync_binding(B, all_durable([Src, Dst]), - fun mnesia:delete_object/3), - {ok, maybe_auto_delete(B#binding.source, - [B], new_deletions())}; - {error, _} = E -> - E - end - end, - case Result of - {error, _} = Err -> - rabbit_misc:const(Err); - {ok, Deletions} -> - fun (Tx) -> ok = process_deletions(Deletions, Tx) end - end - end). - -list(VHostPath) -> - VHostResource = rabbit_misc:r(VHostPath, '_'), - Route = #route{binding = #binding{source = VHostResource, - destination = VHostResource, - _ = '_'}, - _ = '_'}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_source(SrcName) -> - Route = #route{binding = #binding{source = SrcName, _ = '_'}}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_destination(DstName) -> - Route = #route{binding = #binding{destination = DstName, _ = '_'}}, - [reverse_binding(B) || #reverse_route{reverse_binding = B} <- - mnesia:dirty_match_object(rabbit_reverse_route, - reverse_route(Route))]. - -list_for_source_and_destination(SrcName, DstName) -> - Route = #route{binding = #binding{source = SrcName, - destination = DstName, - _ = '_'}}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, B) -> [{Item, i(Item, B)} || Item <- Items]. - -i(source_name, #binding{source = SrcName}) -> SrcName#resource.name; -i(source_kind, #binding{source = SrcName}) -> SrcName#resource.kind; -i(destination_name, #binding{destination = DstName}) -> DstName#resource.name; -i(destination_kind, #binding{destination = DstName}) -> DstName#resource.kind; -i(routing_key, #binding{key = RoutingKey}) -> RoutingKey; -i(arguments, #binding{args = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(B = #binding{}) -> infos(?INFO_KEYS, B). - -info(B = #binding{}, Items) -> infos(Items, B). - -info_all(VHostPath) -> map(VHostPath, fun (B) -> info(B) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (B) -> info(B, Items) end). - -has_for_source(SrcName) -> - Match = #route{binding = #binding{source = SrcName, _ = '_'}}, - %% we need to check for durable routes here too in case a bunch of - %% routes to durable queues have been removed temporarily as a - %% result of a node failure - contains(rabbit_route, Match) orelse contains(rabbit_durable_route, Match). - -remove_for_source(SrcName) -> - [begin - ok = mnesia:delete_object(rabbit_reverse_route, - reverse_route(Route), write), - ok = delete_forward_routes(Route), - Route#route.binding - end || Route <- mnesia:match_object( - rabbit_route, - #route{binding = #binding{source = SrcName, - _ = '_'}}, - write)]. - -remove_for_destination(DstName) -> - remove_for_destination(DstName, fun delete_forward_routes/1). - -remove_transient_for_destination(DstName) -> - remove_for_destination(DstName, fun delete_transient_forward_routes/1). - -%%---------------------------------------------------------------------------- - -all_durable(Resources) -> - lists:all(fun (#exchange{durable = D}) -> D; - (#amqqueue{durable = D}) -> D - end, Resources). - -binding_action(Binding = #binding{source = SrcName, - destination = DstName, - args = Arguments}, Fun) -> - call_with_source_and_destination( - SrcName, DstName, - fun (Src, Dst) -> - SortedArgs = rabbit_misc:sort_field_table(Arguments), - Fun(Src, Dst, Binding#binding{args = SortedArgs}) - end). - -sync_binding(Binding, Durable, Fun) -> - ok = case Durable of - true -> Fun(rabbit_durable_route, - #route{binding = Binding}, write); - false -> ok - end, - {Route, ReverseRoute} = route_with_reverse(Binding), - ok = Fun(rabbit_route, Route, write), - ok = Fun(rabbit_reverse_route, ReverseRoute, write), - ok. - -call_with_source_and_destination(SrcName, DstName, Fun) -> - SrcTable = table_for_resource(SrcName), - DstTable = table_for_resource(DstName), - ErrFun = fun (Err) -> rabbit_misc:const(Err) end, - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case {mnesia:read({SrcTable, SrcName}), - mnesia:read({DstTable, DstName})} of - {[Src], [Dst]} -> Fun(Src, Dst); - {[], [_] } -> ErrFun({error, source_not_found}); - {[_], [] } -> ErrFun({error, destination_not_found}); - {[], [] } -> ErrFun({error, - source_and_destination_not_found}) - end - end). - -table_for_resource(#resource{kind = exchange}) -> rabbit_exchange; -table_for_resource(#resource{kind = queue}) -> rabbit_queue. - -contains(Table, MatchHead) -> - continue(mnesia:select(Table, [{MatchHead, [], ['$_']}], 1, read)). - -continue('$end_of_table') -> false; -continue({[_|_], _}) -> true; -continue({[], Continuation}) -> continue(mnesia:select(Continuation)). - -remove_for_destination(DstName, FwdDeleteFun) -> - Bindings = - [begin - Route = reverse_route(ReverseRoute), - ok = FwdDeleteFun(Route), - ok = mnesia:delete_object(rabbit_reverse_route, - ReverseRoute, write), - Route#route.binding - end || ReverseRoute - <- mnesia:match_object( - rabbit_reverse_route, - reverse_route(#route{ - binding = #binding{ - destination = DstName, - _ = '_'}}), - write)], - group_bindings_fold(fun maybe_auto_delete/3, new_deletions(), - lists:keysort(#binding.source, Bindings)). - -%% Requires that its input binding list is sorted in exchange-name -%% order, so that the grouping of bindings (for passing to -%% group_bindings_and_auto_delete1) works properly. -group_bindings_fold(_Fun, Acc, []) -> - Acc; -group_bindings_fold(Fun, Acc, [B = #binding{source = SrcName} | Bs]) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B]). - -group_bindings_fold( - Fun, SrcName, Acc, [B = #binding{source = SrcName} | Bs], Bindings) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B | Bindings]); -group_bindings_fold(Fun, SrcName, Acc, Removed, Bindings) -> - %% Either Removed is [], or its head has a non-matching SrcName. - group_bindings_fold(Fun, Fun(SrcName, Bindings, Acc), Removed). - -maybe_auto_delete(XName, Bindings, Deletions) -> - case mnesia:read({rabbit_exchange, XName}) of - [] -> - add_deletion(XName, {undefined, not_deleted, Bindings}, Deletions); - [X] -> - add_deletion(XName, {X, not_deleted, Bindings}, - case rabbit_exchange:maybe_auto_delete(X) of - not_deleted -> Deletions; - {deleted, Deletions1} -> combine_deletions( - Deletions, Deletions1) - end) - end. - -delete_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write), - ok = mnesia:delete_object(rabbit_durable_route, Route, write). - -delete_transient_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write). - -route_with_reverse(#route{binding = Binding}) -> - route_with_reverse(Binding); -route_with_reverse(Binding = #binding{}) -> - Route = #route{binding = Binding}, - {Route, reverse_route(Route)}. - -reverse_route(#route{binding = Binding}) -> - #reverse_route{reverse_binding = reverse_binding(Binding)}; - -reverse_route(#reverse_route{reverse_binding = Binding}) -> - #route{binding = reverse_binding(Binding)}. - -reverse_binding(#reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}; - -reverse_binding(#binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}. - -%% ---------------------------------------------------------------------------- -%% Binding / exchange deletion abstraction API -%% ---------------------------------------------------------------------------- - -anything_but( NotThis, NotThis, NotThis) -> NotThis; -anything_but( NotThis, NotThis, This) -> This; -anything_but( NotThis, This, NotThis) -> This; -anything_but(_NotThis, This, This) -> This. - -new_deletions() -> dict:new(). - -add_deletion(XName, Entry, Deletions) -> - dict:update(XName, fun (Entry1) -> merge_entry(Entry1, Entry) end, - Entry, Deletions). - -combine_deletions(Deletions1, Deletions2) -> - dict:merge(fun (_XName, Entry1, Entry2) -> merge_entry(Entry1, Entry2) end, - Deletions1, Deletions2). - -merge_entry({X1, Deleted1, Bindings1}, {X2, Deleted2, Bindings2}) -> - {anything_but(undefined, X1, X2), - anything_but(not_deleted, Deleted1, Deleted2), - [Bindings1 | Bindings2]}. - -process_deletions(Deletions, Tx) -> - dict:fold( - fun (_XName, {X, Deleted, Bindings}, ok) -> - FlatBindings = lists:flatten(Bindings), - [rabbit_event:notify_if(not Tx, binding_deleted, info(B)) || - B <- FlatBindings], - case Deleted of - not_deleted -> - rabbit_exchange:callback(X, remove_bindings, - [Tx, X, FlatBindings]); - deleted -> - rabbit_event:notify_if(not Tx, exchange_deleted, - [{name, X#exchange.name}]), - rabbit_exchange:callback(X, delete, [Tx, X, FlatBindings]) - end - end, ok, Deletions). diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl deleted file mode 100644 index b27f6886..00000000 --- a/src/rabbit_channel.erl +++ /dev/null @@ -1,1496 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/10, do/2, do/3, flush/1, shutdown/1]). --export([send_command/2, deliver/4, flushed/2, confirm/2]). --export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). --export([emit_stats/1, ready_for_close/1]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2]). - --record(ch, {state, protocol, channel, reader_pid, writer_pid, connection_pid, - limiter_pid, start_limiter_fun, transaction_id, tx_participants, - next_tag, uncommitted_ack_q, unacked_message_q, - user, virtual_host, most_recently_declared_queue, - consumer_mapping, blocking, consumer_monitors, queue_collector_pid, - stats_timer, confirm_enabled, publish_seqno, unconfirmed_mq, - unconfirmed_qm, confirmed, capabilities}). - --define(MAX_PERMISSION_CACHE_SIZE, 12). - --define(STATISTICS_KEYS, - [pid, - transactional, - confirm, - consumer_count, - messages_unacknowledged, - messages_unconfirmed, - acks_uncommitted, - prefetch_count, - client_flow_blocked]). - --define(CREATION_EVENT_KEYS, - [pid, - connection, - number, - user, - vhost]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([channel_number/0]). - --type(channel_number() :: non_neg_integer()). - --spec(start_link/10 :: - (channel_number(), pid(), pid(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid(), fun ((non_neg_integer()) -> rabbit_types:ok(pid()))) -> - rabbit_types:ok_pid_or_error()). --spec(do/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(do/3 :: (pid(), rabbit_framing:amqp_method_record(), - rabbit_types:maybe(rabbit_types:content())) -> 'ok'). --spec(flush/1 :: (pid()) -> 'ok'). --spec(shutdown/1 :: (pid()) -> 'ok'). --spec(send_command/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(deliver/4 :: - (pid(), rabbit_types:ctag(), boolean(), rabbit_amqqueue:qmsg()) - -> 'ok'). --spec(flushed/2 :: (pid(), pid()) -> 'ok'). --spec(confirm/2 ::(pid(), [non_neg_integer()]) -> 'ok'). --spec(list/0 :: () -> [pid()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(info_all/0 :: () -> [rabbit_types:infos()]). --spec(info_all/1 :: (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(ready_for_close/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Channel, ReaderPid, WriterPid, ConnectionPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun) -> - gen_server2:start_link( - ?MODULE, [Channel, ReaderPid, WriterPid, ConnectionPid, Protocol, User, - VHost, Capabilities, CollectorPid, StartLimiterFun], []). - -do(Pid, Method) -> - do(Pid, Method, none). - -do(Pid, Method, Content) -> - gen_server2:cast(Pid, {method, Method, Content}). - -flush(Pid) -> - gen_server2:call(Pid, flush, infinity). - -shutdown(Pid) -> - gen_server2:cast(Pid, terminate). - -send_command(Pid, Msg) -> - gen_server2:cast(Pid, {command, Msg}). - -deliver(Pid, ConsumerTag, AckRequired, Msg) -> - gen_server2:cast(Pid, {deliver, ConsumerTag, AckRequired, Msg}). - -flushed(Pid, QPid) -> - gen_server2:cast(Pid, {flushed, QPid}). - -confirm(Pid, MsgSeqNos) -> - gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). - -list() -> - pg_local:get_members(rabbit_channels). - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server2:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server2:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all() -> - rabbit_misc:filter_exit_map(fun (C) -> info(C) end, list()). - -info_all(Items) -> - rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). - -emit_stats(Pid) -> - gen_server2:cast(Pid, emit_stats). - -ready_for_close(Pid) -> - gen_server2:cast(Pid, ready_for_close). - -%%--------------------------------------------------------------------------- - -init([Channel, ReaderPid, WriterPid, ConnectionPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun]) -> - process_flag(trap_exit, true), - ok = pg_local:join(rabbit_channels, self()), - StatsTimer = rabbit_event:init_stats_timer(), - State = #ch{state = starting, - protocol = Protocol, - channel = Channel, - reader_pid = ReaderPid, - writer_pid = WriterPid, - connection_pid = ConnectionPid, - limiter_pid = undefined, - start_limiter_fun = StartLimiterFun, - transaction_id = none, - tx_participants = sets:new(), - next_tag = 1, - uncommitted_ack_q = queue:new(), - unacked_message_q = queue:new(), - user = User, - virtual_host = VHost, - most_recently_declared_queue = <<>>, - consumer_mapping = dict:new(), - blocking = dict:new(), - consumer_monitors = dict:new(), - queue_collector_pid = CollectorPid, - stats_timer = StatsTimer, - confirm_enabled = false, - publish_seqno = 1, - unconfirmed_mq = gb_trees:empty(), - unconfirmed_qm = gb_trees:empty(), - confirmed = [], - capabilities = Capabilities}, - rabbit_event:notify(channel_created, infos(?CREATION_EVENT_KEYS, State)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State) end), - {ok, State, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - emit_stats -> 7; - {confirm, _MsgSeqNos, _QPid} -> 5; - _ -> 0 - end. - -handle_call(flush, _From, State) -> - reply(ok, State); - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(_Request, _From, State) -> - noreply(State). - -handle_cast({method, Method, Content}, State) -> - try handle_method(Method, Content, State) of - {reply, Reply, NewState} -> - ok = rabbit_writer:send_command(NewState#ch.writer_pid, Reply), - noreply(NewState); - {noreply, NewState} -> - noreply(NewState); - stop -> - {stop, normal, State} - catch - exit:Reason = #amqp_error{} -> - MethodName = rabbit_misc:method_record_type(Method), - send_exception(Reason#amqp_error{method = MethodName}, State); - _:Reason -> - {stop, {Reason, erlang:get_stacktrace()}, State} - end; - -handle_cast({flushed, QPid}, State) -> - {noreply, queue_blocked(QPid, State), hibernate}; - -handle_cast(ready_for_close, State = #ch{state = closing, - writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command_sync(WriterPid, #'channel.close_ok'{}), - {stop, normal, State}; - -handle_cast(terminate, State) -> - {stop, normal, State}; - -handle_cast({command, #'basic.consume_ok'{consumer_tag = ConsumerTag} = Msg}, - State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(monitor_consumer(ConsumerTag, State)); - -handle_cast({command, Msg}, State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(State); - -handle_cast({deliver, ConsumerTag, AckRequired, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}}}, - State = #ch{writer_pid = WriterPid, - next_tag = DeliveryTag}) -> - State1 = lock_message(AckRequired, - ack_record(DeliveryTag, ConsumerTag, Msg), - State), - - M = #'basic.deliver'{consumer_tag = ConsumerTag, - delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - rabbit_writer:send_command_and_notify(WriterPid, QPid, self(), M, Content), - - maybe_incr_stats([{QPid, 1}], - case AckRequired of - true -> deliver; - false -> deliver_no_ack - end, State), - noreply(State1#ch{next_tag = DeliveryTag + 1}); - -handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> - internal_emit_stats(State), - noreply([ensure_stats_timer], - State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}); - -handle_cast({confirm, MsgSeqNos, From}, State) -> - State1 = #ch{confirmed = C} = confirm(MsgSeqNos, From, State), - noreply([send_confirms], State1, case C of [] -> hibernate; _ -> 0 end). - -handle_info(timeout, State) -> - noreply(State); - -handle_info({'DOWN', MRef, process, QPid, Reason}, - State = #ch{consumer_monitors = ConsumerMonitors}) -> - noreply( - case dict:find(MRef, ConsumerMonitors) of - error -> - handle_publishing_queue_down(QPid, Reason, State); - {ok, ConsumerTag} -> - handle_consuming_queue_down(MRef, ConsumerTag, State) - end). - -handle_pre_hibernate(State = #ch{stats_timer = StatsTimer}) -> - ok = clear_permission_cache(), - rabbit_event:if_enabled(StatsTimer, - fun () -> - internal_emit_stats( - State, [{idle_since, now()}]) - end), - StatsTimer1 = rabbit_event:stop_stats_timer(StatsTimer), - {hibernate, State#ch{stats_timer = StatsTimer1}}. - -terminate(Reason, State) -> - {Res, _State1} = rollback_and_notify(State), - case Reason of - normal -> ok = Res; - shutdown -> ok = Res; - {shutdown, _Term} -> ok = Res; - _ -> ok - end, - pg_local:leave(rabbit_channels, self()), - rabbit_event:notify(channel_closed, [{pid, self()}]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%--------------------------------------------------------------------------- - -reply(Reply, NewState) -> reply(Reply, [], NewState). - -reply(Reply, Mask, NewState) -> reply(Reply, Mask, NewState, hibernate). - -reply(Reply, Mask, NewState, Timeout) -> - {reply, Reply, next_state(Mask, NewState), Timeout}. - -noreply(NewState) -> noreply([], NewState). - -noreply(Mask, NewState) -> noreply(Mask, NewState, hibernate). - -noreply(Mask, NewState, Timeout) -> - {noreply, next_state(Mask, NewState), Timeout}. - -next_state(Mask, State) -> - lists:foldl(fun (ensure_stats_timer, State1) -> ensure_stats_timer(State1); - (send_confirms, State1) -> send_confirms(State1) - end, State, [ensure_stats_timer, send_confirms] -- Mask). - -ensure_stats_timer(State = #ch{stats_timer = StatsTimer}) -> - ChPid = self(), - State#ch{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(ChPid) end)}. - -return_ok(State, true, _Msg) -> {noreply, State}; -return_ok(State, false, Msg) -> {reply, Msg, State}. - -ok_msg(true, _Msg) -> undefined; -ok_msg(false, Msg) -> Msg. - -send_exception(Reason, State = #ch{protocol = Protocol, - channel = Channel, - writer_pid = WriterPid, - reader_pid = ReaderPid}) -> - {CloseChannel, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - rabbit_log:error("connection ~p, channel ~p - error:~n~p~n", - [ReaderPid, Channel, Reason]), - %% something bad's happened: rollback_and_notify may not be 'ok' - {_Result, State1} = rollback_and_notify(State), - case CloseChannel of - Channel -> ok = rabbit_writer:send_command(WriterPid, CloseMethod), - {noreply, State1}; - _ -> ReaderPid ! {channel_exit, Channel, Reason}, - {stop, normal, State1} - end. - -return_queue_declare_ok(#resource{name = ActualName}, - NoWait, MessageCount, ConsumerCount, State) -> - return_ok(State#ch{most_recently_declared_queue = ActualName}, NoWait, - #'queue.declare_ok'{queue = ActualName, - message_count = MessageCount, - consumer_count = ConsumerCount}). - -check_resource_access(User, Resource, Perm) -> - V = {Resource, Perm}, - Cache = case get(permission_cache) of - undefined -> []; - Other -> Other - end, - CacheTail = - case lists:member(V, Cache) of - true -> lists:delete(V, Cache); - false -> ok = rabbit_access_control:check_resource_access( - User, Resource, Perm), - lists:sublist(Cache, ?MAX_PERMISSION_CACHE_SIZE - 1) - end, - put(permission_cache, [V | CacheTail]), - ok. - -clear_permission_cache() -> - erase(permission_cache), - ok. - -check_configure_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, configure). - -check_write_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, write). - -check_read_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, read). - -check_user_id_header(#'P_basic'{user_id = undefined}, _) -> - ok; -check_user_id_header(#'P_basic'{user_id = Username}, - #ch{user = #user{username = Username}}) -> - ok; -check_user_id_header(#'P_basic'{user_id = Claimed}, - #ch{user = #user{username = Actual}}) -> - rabbit_misc:protocol_error( - precondition_failed, "user_id property set to '~s' but " - "authenticated user was '~s'", [Claimed, Actual]). - -check_internal_exchange(#exchange{name = Name, internal = true}) -> - rabbit_misc:protocol_error(access_refused, - "cannot publish to internal ~s", - [rabbit_misc:rs(Name)]); -check_internal_exchange(_) -> - ok. - -expand_queue_name_shortcut(<<>>, #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_queue_name_shortcut(<<>>, #ch{virtual_host = VHostPath, - most_recently_declared_queue = MRDQ}) -> - rabbit_misc:r(VHostPath, queue, MRDQ); -expand_queue_name_shortcut(QueueNameBin, #ch{virtual_host = VHostPath}) -> - rabbit_misc:r(VHostPath, queue, QueueNameBin). - -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = MRDQ}) -> - MRDQ; -expand_routing_key_shortcut(_QueueNameBin, RoutingKey, _State) -> - RoutingKey. - -expand_binding(queue, DestinationNameBin, RoutingKey, State) -> - {expand_queue_name_shortcut(DestinationNameBin, State), - expand_routing_key_shortcut(DestinationNameBin, RoutingKey, State)}; -expand_binding(exchange, DestinationNameBin, RoutingKey, State) -> - {rabbit_misc:r(State#ch.virtual_host, exchange, DestinationNameBin), - RoutingKey}. - -check_not_default_exchange(#resource{kind = exchange, name = <<"">>}) -> - rabbit_misc:protocol_error( - access_refused, "operation not permitted on the default exchange", []); -check_not_default_exchange(_) -> - ok. - -%% check that an exchange/queue name does not contain the reserved -%% "amq." prefix. -%% -%% One, quite reasonable, interpretation of the spec, taken by the -%% QPid M1 Java client, is that the exclusion of "amq." prefixed names -%% only applies on actual creation, and not in the cases where the -%% entity already exists. This is how we use this function in the code -%% below. However, AMQP JIRA 123 changes that in 0-10, and possibly -%% 0-9SP1, making it illegal to attempt to declare an exchange/queue -%% with an amq.* name when passive=false. So this will need -%% revisiting. -%% -%% TODO: enforce other constraints on name. See AMQP JIRA 69. -check_name(Kind, NameBin = <<"amq.", _/binary>>) -> - rabbit_misc:protocol_error( - access_refused, - "~s name '~s' contains reserved prefix 'amq.*'",[Kind, NameBin]); -check_name(_Kind, NameBin) -> - NameBin. - -queue_blocked(QPid, State = #ch{blocking = Blocking}) -> - case dict:find(QPid, Blocking) of - error -> State; - {ok, MRef} -> true = erlang:demonitor(MRef), - Blocking1 = dict:erase(QPid, Blocking), - ok = case dict:size(Blocking1) of - 0 -> rabbit_writer:send_command( - State#ch.writer_pid, - #'channel.flow_ok'{active = false}); - _ -> ok - end, - State#ch{blocking = Blocking1} - end. - -record_confirm(undefined, _, State) -> - State; -record_confirm(MsgSeqNo, XName, State) -> - record_confirms([{MsgSeqNo, XName}], State). - -record_confirms([], State) -> - State; -record_confirms(MXs, State = #ch{confirmed = C}) -> - State#ch{confirmed = [MXs | C]}. - -confirm([], _QPid, State) -> - State; -confirm(MsgSeqNos, QPid, State) -> - {MXs, State1} = process_confirms(MsgSeqNos, QPid, false, State), - record_confirms(MXs, State1). - -process_confirms(MsgSeqNos, QPid, Nack, State = #ch{unconfirmed_mq = UMQ, - unconfirmed_qm = UQM}) -> - {MXs, UMQ1, UQM1} = - lists:foldl( - fun(MsgSeqNo, {_MXs, UMQ0, _UQM} = Acc) -> - case gb_trees:lookup(MsgSeqNo, UMQ0) of - {value, XQ} -> remove_unconfirmed(MsgSeqNo, QPid, XQ, - Acc, Nack, State); - none -> Acc - end - end, {[], UMQ, UQM}, MsgSeqNos), - {MXs, State#ch{unconfirmed_mq = UMQ1, unconfirmed_qm = UQM1}}. - -remove_unconfirmed(MsgSeqNo, QPid, {XName, Qs}, {MXs, UMQ, UQM}, Nack, - State) -> - %% these confirms will be emitted even when a queue dies, but that - %% should be fine, since the queue stats get erased immediately - maybe_incr_stats([{{QPid, XName}, 1}], confirm, State), - UQM1 = case gb_trees:lookup(QPid, UQM) of - {value, MsgSeqNos} -> - MsgSeqNos1 = gb_sets:delete(MsgSeqNo, MsgSeqNos), - case gb_sets:is_empty(MsgSeqNos1) of - true -> gb_trees:delete(QPid, UQM); - false -> gb_trees:update(QPid, MsgSeqNos1, UQM) - end; - none -> - UQM - end, - Qs1 = gb_sets:del_element(QPid, Qs), - %% If QPid somehow died initiating a nack, clear the message from - %% internal data-structures. Also, cleanup empty entries. - case (Nack orelse gb_sets:is_empty(Qs1)) of - true -> - {[{MsgSeqNo, XName} | MXs], gb_trees:delete(MsgSeqNo, UMQ), UQM1}; - false -> - {MXs, gb_trees:update(MsgSeqNo, {XName, Qs1}, UMQ), UQM1} - end. - -handle_method(#'channel.open'{}, _, State = #ch{state = starting}) -> - {reply, #'channel.open_ok'{}, State#ch{state = running}}; - -handle_method(#'channel.open'{}, _, _State) -> - rabbit_misc:protocol_error( - command_invalid, "second 'channel.open' seen", []); - -handle_method(_Method, _, #ch{state = starting}) -> - rabbit_misc:protocol_error(channel_error, "expected 'channel.open'", []); - -handle_method(#'channel.close_ok'{}, _, #ch{state = closing}) -> - stop; - -handle_method(#'channel.close'{}, _, State = #ch{state = closing}) -> - {reply, #'channel.close_ok'{}, State}; - -handle_method(_Method, _, State = #ch{state = closing}) -> - {noreply, State}; - -handle_method(#'channel.close'{}, _, State = #ch{reader_pid = ReaderPid}) -> - {ok, State1} = rollback_and_notify(State), - ReaderPid ! {channel_closing, self()}, - {noreply, State1}; - -handle_method(#'access.request'{},_, State) -> - {reply, #'access.request_ok'{ticket = 1}, State}; - -handle_method(#'basic.publish'{exchange = ExchangeNameBin, - routing_key = RoutingKey, - mandatory = Mandatory, - immediate = Immediate}, - Content, State = #ch{virtual_host = VHostPath, - transaction_id = TxnKey, - confirm_enabled = ConfirmEnabled}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_write_permitted(ExchangeName, State), - Exchange = rabbit_exchange:lookup_or_die(ExchangeName), - check_internal_exchange(Exchange), - %% We decode the content's properties here because we're almost - %% certain to want to look at delivery-mode and priority. - DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), - check_user_id_header(DecodedContent#content.properties, State), - {MsgSeqNo, State1} = - case ConfirmEnabled of - false -> {undefined, State}; - true -> SeqNo = State#ch.publish_seqno, - {SeqNo, State#ch{publish_seqno = SeqNo + 1}} - end, - case rabbit_basic:message(ExchangeName, RoutingKey, DecodedContent) of - {ok, Message} -> - {RoutingRes, DeliveredQPids} = - rabbit_exchange:publish( - Exchange, - rabbit_basic:delivery(Mandatory, Immediate, TxnKey, Message, - MsgSeqNo)), - State2 = process_routing_result(RoutingRes, DeliveredQPids, - ExchangeName, MsgSeqNo, Message, - State1), - maybe_incr_stats([{ExchangeName, 1} | - [{{QPid, ExchangeName}, 1} || - QPid <- DeliveredQPids]], publish, State2), - {noreply, case TxnKey of - none -> State2; - _ -> add_tx_participants(DeliveredQPids, State2) - end}; - {error, Reason} -> - rabbit_misc:protocol_error(precondition_failed, - "invalid message: ~p", [Reason]) - end; - -handle_method(#'basic.nack'{delivery_tag = DeliveryTag, - multiple = Multiple, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, Multiple, State); - -handle_method(#'basic.ack'{delivery_tag = DeliveryTag, - multiple = Multiple}, - _, State = #ch{transaction_id = TxnKey, - unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - QIncs = ack(TxnKey, Acked), - Participants = [QPid || {QPid, _} <- QIncs], - maybe_incr_stats(QIncs, ack, State), - {noreply, case TxnKey of - none -> ok = notify_limiter(State#ch.limiter_pid, Acked), - State#ch{unacked_message_q = Remaining}; - _ -> NewUAQ = queue:join(State#ch.uncommitted_ack_q, - Acked), - add_tx_participants( - Participants, - State#ch{unacked_message_q = Remaining, - uncommitted_ack_q = NewUAQ}) - end}; - -handle_method(#'basic.get'{queue = QueueNameBin, - no_ack = NoAck}, - _, State = #ch{writer_pid = WriterPid, - reader_pid = ReaderPid, - next_tag = DeliveryTag}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:basic_get(Q, self(), NoAck) end) of - {ok, MessageCount, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}}} -> - State1 = lock_message(not(NoAck), - ack_record(DeliveryTag, none, Msg), - State), - maybe_incr_stats([{QPid, 1}], - case NoAck of - true -> get_no_ack; - false -> get - end, State), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.get_ok'{delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey, - message_count = MessageCount}, - Content), - {noreply, State1#ch{next_tag = DeliveryTag + 1}}; - empty -> - {reply, #'basic.get_empty'{}, State} - end; - -handle_method(#'basic.consume'{queue = QueueNameBin, - consumer_tag = ConsumerTag, - no_local = _, % FIXME: implement - no_ack = NoAck, - exclusive = ExclusiveConsume, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid, - limiter_pid = LimiterPid, - consumer_mapping = ConsumerMapping}) -> - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - ActualConsumerTag = - case ConsumerTag of - <<>> -> rabbit_guid:binstring_guid("amq.ctag"); - Other -> Other - end, - - %% We get the queue process to send the consume_ok on our - %% behalf. This is for symmetry with basic.cancel - see - %% the comment in that method for why. - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> - {rabbit_amqqueue:basic_consume( - Q, NoAck, self(), LimiterPid, - ActualConsumerTag, ExclusiveConsume, - ok_msg(NoWait, #'basic.consume_ok'{ - consumer_tag = ActualConsumerTag})), - Q} - end) of - {ok, Q} -> - State1 = State#ch{consumer_mapping = - dict:store(ActualConsumerTag, - {Q, undefined}, - ConsumerMapping)}, - {noreply, - case NoWait of - true -> monitor_consumer(ActualConsumerTag, State1); - false -> State1 - end}; - {{error, exclusive_consume_unavailable}, _Q} -> - rabbit_misc:protocol_error( - access_refused, "~s in exclusive use", - [rabbit_misc:rs(QueueName)]) - end; - {ok, _} -> - %% Attempted reuse of consumer tag. - rabbit_misc:protocol_error( - not_allowed, "attempt to reuse consumer tag '~s'", [ConsumerTag]) - end; - -handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, - nowait = NoWait}, - _, State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors}) -> - OkMsg = #'basic.cancel_ok'{consumer_tag = ConsumerTag}, - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - %% Spec requires we ignore this situation. - return_ok(State, NoWait, OkMsg); - {ok, {Q, MRef}} -> - ConsumerMonitors1 = - case MRef of - undefined -> ConsumerMonitors; - _ -> true = erlang:demonitor(MRef), - dict:erase(MRef, ConsumerMonitors) - end, - NewState = State#ch{consumer_mapping = dict:erase(ConsumerTag, - ConsumerMapping), - consumer_monitors = ConsumerMonitors1}, - %% In order to ensure that no more messages are sent to - %% the consumer after the cancel_ok has been sent, we get - %% the queue process to send the cancel_ok on our - %% behalf. If we were sending the cancel_ok ourselves it - %% might overtake a message sent previously by the queue. - case rabbit_misc:with_exit_handler( - fun () -> {error, not_found} end, - fun () -> - rabbit_amqqueue:basic_cancel( - Q, self(), ConsumerTag, - ok_msg(NoWait, #'basic.cancel_ok'{ - consumer_tag = ConsumerTag})) - end) of - ok -> - {noreply, NewState}; - {error, not_found} -> - %% Spec requires we ignore this situation. - return_ok(NewState, NoWait, OkMsg) - end - end; - -handle_method(#'basic.qos'{global = true}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "global=true", []); - -handle_method(#'basic.qos'{prefetch_size = Size}, _, _State) when Size /= 0 -> - rabbit_misc:protocol_error(not_implemented, - "prefetch_size!=0 (~w)", [Size]); - -handle_method(#'basic.qos'{prefetch_count = PrefetchCount}, - _, State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case {LimiterPid, PrefetchCount} of - {undefined, 0} -> undefined; - {undefined, _} -> start_limiter(State); - {_, _} -> LimiterPid - end, - LimiterPid2 = case rabbit_limiter:limit(LimiterPid1, PrefetchCount) of - ok -> LimiterPid1; - stopped -> unlimit_queues(State) - end, - {reply, #'basic.qos_ok'{}, State#ch{limiter_pid = LimiterPid2}}; - -handle_method(#'basic.recover_async'{requeue = true}, - _, State = #ch{unacked_message_q = UAMQ, - limiter_pid = LimiterPid}) -> - OkFun = fun () -> ok end, - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - %% The Qpid python test suite incorrectly assumes - %% that messages will be requeued in their original - %% order. To keep it happy we reverse the id list - %% since we are given them in reverse order. - rabbit_misc:with_exit_handler( - OkFun, fun () -> - rabbit_amqqueue:requeue( - QPid, lists:reverse(MsgIds), self()) - end) - end, ok, UAMQ), - ok = notify_limiter(LimiterPid, UAMQ), - %% No answer required - basic.recover is the newer, synchronous - %% variant of this method - {noreply, State#ch{unacked_message_q = queue:new()}}; - -handle_method(#'basic.recover_async'{requeue = false}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "requeue=false", []); - -handle_method(#'basic.recover'{requeue = Requeue}, Content, State) -> - {noreply, State2 = #ch{writer_pid = WriterPid}} = - handle_method(#'basic.recover_async'{requeue = Requeue}, - Content, - State), - ok = rabbit_writer:send_command(WriterPid, #'basic.recover_ok'{}), - {noreply, State2}; - -handle_method(#'basic.reject'{delivery_tag = DeliveryTag, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, false, State); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - type = TypeNameBin, - passive = false, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - nowait = NoWait, - arguments = Args}, - _, State = #ch{virtual_host = VHostPath}) -> - CheckedType = rabbit_exchange:check_type(TypeNameBin), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - X = case rabbit_exchange:lookup(ExchangeName) of - {ok, FoundX} -> FoundX; - {error, not_found} -> - check_name('exchange', ExchangeNameBin), - case rabbit_misc:r_arg(VHostPath, exchange, Args, - <<"alternate-exchange">>) of - undefined -> ok; - AName -> check_read_permitted(ExchangeName, State), - check_write_permitted(AName, State), - ok - end, - rabbit_exchange:declare(ExchangeName, - CheckedType, - Durable, - AutoDelete, - Internal, - Args) - end, - ok = rabbit_exchange:assert_equivalence(X, CheckedType, Durable, - AutoDelete, Internal, Args), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), - check_not_default_exchange(ExchangeName), - _ = rabbit_exchange:lookup_or_die(ExchangeName), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.delete'{exchange = ExchangeNameBin, - if_unused = IfUnused, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - case rabbit_exchange:delete(ExchangeName, IfUnused) of - {error, not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(ExchangeName)]); - ok -> - return_ok(State, NoWait, #'exchange.delete_ok'{}) - end; - -handle_method(#'exchange.bind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.bind_ok'{}, NoWait, State); - -handle_method(#'exchange.unbind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.unbind_ok'{}, NoWait, State); - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = false, - durable = Durable, - exclusive = ExclusiveDeclare, - auto_delete = AutoDelete, - nowait = NoWait, - arguments = Args} = Declare, - _, State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid, - queue_collector_pid = CollectorPid}) -> - Owner = case ExclusiveDeclare of - true -> ReaderPid; - false -> none - end, - ActualNameBin = case QueueNameBin of - <<>> -> rabbit_guid:binstring_guid("amq.gen"); - Other -> check_name('queue', Other) - end, - QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> ok = rabbit_amqqueue:assert_equivalence( - Q, Durable, AutoDelete, Args, Owner), - rabbit_amqqueue:stat(Q) - end) of - {ok, MessageCount, ConsumerCount} -> - return_queue_declare_ok(QueueName, NoWait, MessageCount, - ConsumerCount, State); - {error, not_found} -> - case rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, - Args, Owner) of - {new, Q = #amqqueue{}} -> - %% We need to notify the reader within the channel - %% process so that we can be sure there are no - %% outstanding exclusive queues being declared as - %% the connection shuts down. - ok = case Owner of - none -> ok; - _ -> rabbit_queue_collector:register( - CollectorPid, Q) - end, - return_queue_declare_ok(QueueName, NoWait, 0, 0, State); - {existing, _Q} -> - %% must have been created between the stat and the - %% declare. Loop around again. - handle_method(Declare, none, State) - end - end; - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid}) -> - QueueName = rabbit_misc:r(VHostPath, queue, QueueNameBin), - check_configure_permitted(QueueName, State), - {{ok, MessageCount, ConsumerCount}, #amqqueue{} = Q} = - rabbit_amqqueue:with_or_die( - QueueName, fun (Q) -> {rabbit_amqqueue:stat(Q), Q} end), - ok = rabbit_amqqueue:check_exclusive_access(Q, ReaderPid), - return_queue_declare_ok(QueueName, NoWait, MessageCount, ConsumerCount, - State); - -handle_method(#'queue.delete'{queue = QueueNameBin, - if_unused = IfUnused, - if_empty = IfEmpty, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:delete(Q, IfUnused, IfEmpty) end) of - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(QueueName)]); - {error, not_empty} -> - rabbit_misc:protocol_error( - precondition_failed, "~s not empty", [rabbit_misc:rs(QueueName)]); - {ok, PurgedMessageCount} -> - return_ok(State, NoWait, - #'queue.delete_ok'{message_count = PurgedMessageCount}) - end; - -handle_method(#'queue.bind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.bind_ok'{}, NoWait, State); - -handle_method(#'queue.unbind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.unbind_ok'{}, false, State); - -handle_method(#'queue.purge'{queue = QueueNameBin, - nowait = NoWait}, - _, State = #ch{reader_pid = ReaderPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - {ok, PurgedMessageCount} = rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ReaderPid, - fun (Q) -> rabbit_amqqueue:purge(Q) end), - return_ok(State, NoWait, - #'queue.purge_ok'{message_count = PurgedMessageCount}); - - -handle_method(#'tx.select'{}, _, #ch{confirm_enabled = true}) -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from confirm to tx mode", []); - -handle_method(#'tx.select'{}, _, State = #ch{transaction_id = none}) -> - {reply, #'tx.select_ok'{}, new_tx(State)}; - -handle_method(#'tx.select'{}, _, State) -> - {reply, #'tx.select_ok'{}, State}; - -handle_method(#'tx.commit'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.commit'{}, _, State) -> - {reply, #'tx.commit_ok'{}, internal_commit(State)}; - -handle_method(#'tx.rollback'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.rollback'{}, _, State) -> - {reply, #'tx.rollback_ok'{}, internal_rollback(State)}; - -handle_method(#'confirm.select'{}, _, #ch{transaction_id = TxId}) - when TxId =/= none -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from tx to confirm mode", []); - -handle_method(#'confirm.select'{nowait = NoWait}, _, State) -> - return_ok(State#ch{confirm_enabled = true}, - NoWait, #'confirm.select_ok'{}); - -handle_method(#'channel.flow'{active = true}, _, - State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case rabbit_limiter:unblock(LimiterPid) of - ok -> LimiterPid; - stopped -> unlimit_queues(State) - end, - {reply, #'channel.flow_ok'{active = true}, - State#ch{limiter_pid = LimiterPid1}}; - -handle_method(#'channel.flow'{active = false}, _, - State = #ch{limiter_pid = LimiterPid, - consumer_mapping = Consumers}) -> - LimiterPid1 = case LimiterPid of - undefined -> start_limiter(State); - Other -> Other - end, - State1 = State#ch{limiter_pid = LimiterPid1}, - ok = rabbit_limiter:block(LimiterPid1), - case consumer_queues(Consumers) of - [] -> {reply, #'channel.flow_ok'{active = false}, State1}; - QPids -> Queues = [{QPid, erlang:monitor(process, QPid)} || - QPid <- QPids], - ok = rabbit_amqqueue:flush_all(QPids, self()), - {noreply, State1#ch{blocking = dict:from_list(Queues)}} - end; - -handle_method(_MethodRecord, _Content, _State) -> - rabbit_misc:protocol_error( - command_invalid, "unimplemented method", []). - -%%---------------------------------------------------------------------------- - -monitor_consumer(ConsumerTag, State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors, - capabilities = Capabilities}) -> - case rabbit_misc:table_lookup( - Capabilities, <<"consumer_cancel_notify">>) of - {bool, true} -> - {#amqqueue{pid = QPid} = Q, undefined} = - dict:fetch(ConsumerTag, ConsumerMapping), - MRef = erlang:monitor(process, QPid), - State#ch{consumer_mapping = - dict:store(ConsumerTag, {Q, MRef}, ConsumerMapping), - consumer_monitors = - dict:store(MRef, ConsumerTag, ConsumerMonitors)}; - _ -> - State - end. - -handle_publishing_queue_down(QPid, Reason, State = #ch{unconfirmed_qm = UQM}) -> - MsgSeqNos = case gb_trees:lookup(QPid, UQM) of - {value, MsgSet} -> gb_sets:to_list(MsgSet); - none -> [] - end, - %% We remove the MsgSeqNos from UQM before calling - %% process_confirms to prevent each MsgSeqNo being removed from - %% the set one by one which which would be inefficient - State1 = State#ch{unconfirmed_qm = gb_trees:delete_any(QPid, UQM)}, - {Nack, SendFun} = case Reason of - normal -> {false, fun record_confirms/2}; - _ -> {true, fun send_nacks/2} - end, - {MXs, State2} = process_confirms(MsgSeqNos, QPid, Nack, State1), - erase_queue_stats(QPid), - State3 = SendFun(MXs, State2), - queue_blocked(QPid, State3). - -handle_consuming_queue_down(MRef, ConsumerTag, - State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors, - writer_pid = WriterPid}) -> - ConsumerMapping1 = dict:erase(ConsumerTag, ConsumerMapping), - ConsumerMonitors1 = dict:erase(MRef, ConsumerMonitors), - Cancel = #'basic.cancel'{consumer_tag = ConsumerTag, - nowait = true}, - ok = rabbit_writer:send_command(WriterPid, Cancel), - State#ch{consumer_mapping = ConsumerMapping1, - consumer_monitors = ConsumerMonitors1}. - -binding_action(Fun, ExchangeNameBin, DestinationType, DestinationNameBin, - RoutingKey, Arguments, ReturnMethod, NoWait, - State = #ch{virtual_host = VHostPath, - reader_pid = ReaderPid}) -> - %% FIXME: connection exception (!) on failure?? - %% (see rule named "failure" in spec-XML) - %% FIXME: don't allow binding to internal exchanges - - %% including the one named "" ! - {DestinationName, ActualRoutingKey} = - expand_binding(DestinationType, DestinationNameBin, RoutingKey, State), - check_write_permitted(DestinationName, State), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - [check_not_default_exchange(N) || N <- [DestinationName, ExchangeName]], - check_read_permitted(ExchangeName, State), - case Fun(#binding{source = ExchangeName, - destination = DestinationName, - key = ActualRoutingKey, - args = Arguments}, - fun (_X, Q = #amqqueue{}) -> - try rabbit_amqqueue:check_exclusive_access(Q, ReaderPid) - catch exit:Reason -> {error, Reason} - end; - (_X, #exchange{}) -> - ok - end) of - {error, source_not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, destination_not_found} -> - rabbit_misc:not_found(DestinationName); - {error, source_and_destination_not_found} -> - rabbit_misc:protocol_error( - not_found, "no ~s and no ~s", [rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, binding_not_found} -> - rabbit_misc:protocol_error( - not_found, "no binding ~s between ~s and ~s", - [RoutingKey, rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, #amqp_error{} = Error} -> - rabbit_misc:protocol_error(Error); - ok -> return_ok(State, NoWait, ReturnMethod) - end. - -basic_return(#basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}, - #ch{protocol = Protocol, writer_pid = WriterPid}, Reason) -> - {_Close, ReplyCode, ReplyText} = Protocol:lookup_amqp_exception(Reason), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.return'{reply_code = ReplyCode, - reply_text = ReplyText, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - Content). - -reject(DeliveryTag, Requeue, Multiple, State = #ch{unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - rabbit_amqqueue:reject(QPid, MsgIds, Requeue, self()) - end, ok, Acked), - ok = notify_limiter(State#ch.limiter_pid, Acked), - {noreply, State#ch{unacked_message_q = Remaining}}. - -ack_record(DeliveryTag, ConsumerTag, - _MsgStruct = {_QName, QPid, MsgId, _Redelivered, _Msg}) -> - {DeliveryTag, ConsumerTag, {QPid, MsgId}}. - -collect_acks(Q, 0, true) -> - {Q, queue:new()}; -collect_acks(Q, DeliveryTag, Multiple) -> - collect_acks(queue:new(), queue:new(), Q, DeliveryTag, Multiple). - -collect_acks(ToAcc, PrefixAcc, Q, DeliveryTag, Multiple) -> - case queue:out(Q) of - {{value, UnackedMsg = {CurrentDeliveryTag, _ConsumerTag, _Msg}}, - QTail} -> - if CurrentDeliveryTag == DeliveryTag -> - {queue:in(UnackedMsg, ToAcc), queue:join(PrefixAcc, QTail)}; - Multiple -> - collect_acks(queue:in(UnackedMsg, ToAcc), PrefixAcc, - QTail, DeliveryTag, Multiple); - true -> - collect_acks(ToAcc, queue:in(UnackedMsg, PrefixAcc), - QTail, DeliveryTag, Multiple) - end; - {empty, _} -> - rabbit_misc:protocol_error( - precondition_failed, "unknown delivery tag ~w", [DeliveryTag]) - end. - -add_tx_participants(MoreP, State = #ch{tx_participants = Participants}) -> - State#ch{tx_participants = sets:union(Participants, - sets:from_list(MoreP))}. - -ack(TxnKey, UAQ) -> - fold_per_queue( - fun (QPid, MsgIds, L) -> - ok = rabbit_amqqueue:ack(QPid, TxnKey, MsgIds, self()), - [{QPid, length(MsgIds)} | L] - end, [], UAQ). - -make_tx_id() -> rabbit_guid:guid(). - -new_tx(State) -> - State#ch{transaction_id = make_tx_id(), - tx_participants = sets:new(), - uncommitted_ack_q = queue:new()}. - -internal_commit(State = #ch{transaction_id = TxnKey, - tx_participants = Participants}) -> - case rabbit_amqqueue:commit_all(sets:to_list(Participants), - TxnKey, self()) of - ok -> ok = notify_limiter(State#ch.limiter_pid, - State#ch.uncommitted_ack_q), - new_tx(State); - {error, Errors} -> rabbit_misc:protocol_error( - internal_error, "commit failed: ~w", [Errors]) - end. - -internal_rollback(State = #ch{transaction_id = TxnKey, - tx_participants = Participants, - uncommitted_ack_q = UAQ, - unacked_message_q = UAMQ}) -> - ?LOGDEBUG("rollback ~p~n - ~p acks uncommitted, ~p messages unacked~n", - [self(), - queue:len(UAQ), - queue:len(UAMQ)]), - ok = rabbit_amqqueue:rollback_all(sets:to_list(Participants), - TxnKey, self()), - NewUAMQ = queue:join(UAQ, UAMQ), - new_tx(State#ch{unacked_message_q = NewUAMQ}). - -rollback_and_notify(State = #ch{state = closing}) -> - {ok, State}; -rollback_and_notify(State = #ch{transaction_id = none}) -> - {notify_queues(State), State#ch{state = closing}}; -rollback_and_notify(State) -> - State1 = internal_rollback(State), - {notify_queues(State1), State1#ch{state = closing}}. - -fold_per_queue(F, Acc0, UAQ) -> - D = rabbit_misc:queue_fold( - fun ({_DTag, _CTag, {QPid, MsgId}}, D) -> - %% dict:append would avoid the lists:reverse in - %% handle_message({recover, true}, ...). However, it - %% is significantly slower when going beyond a few - %% thousand elements. - rabbit_misc:dict_cons(QPid, MsgId, D) - end, dict:new(), UAQ), - dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, - Acc0, D). - -start_limiter(State = #ch{unacked_message_q = UAMQ, start_limiter_fun = SLF}) -> - {ok, LPid} = SLF(queue:len(UAMQ)), - ok = limit_queues(LPid, State), - LPid. - -notify_queues(#ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:notify_down_all(consumer_queues(Consumers), self()). - -unlimit_queues(State) -> - ok = limit_queues(undefined, State), - undefined. - -limit_queues(LPid, #ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:limit_all(consumer_queues(Consumers), self(), LPid). - -consumer_queues(Consumers) -> - lists:usort([QPid || - {_Key, {#amqqueue{pid = QPid}, _MRef}} - <- dict:to_list(Consumers)]). - -%% tell the limiter about the number of acks that have been received -%% for messages delivered to subscribed consumers, but not acks for -%% messages sent in a response to a basic.get (identified by their -%% 'none' consumer tag) -notify_limiter(undefined, _Acked) -> - ok; -notify_limiter(LimiterPid, Acked) -> - case rabbit_misc:queue_fold(fun ({_, none, _}, Acc) -> Acc; - ({_, _, _}, Acc) -> Acc + 1 - end, 0, Acked) of - 0 -> ok; - Count -> rabbit_limiter:ack(LimiterPid, Count) - end. - -process_routing_result(unroutable, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State, no_route), - maybe_incr_stats([{Msg#basic_message.exchange_name, 1}], - return_unroutable, State), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(not_delivered, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State, no_consumers), - maybe_incr_stats([{Msg#basic_message.exchange_name, 1}], - return_not_delivered, State), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, [], XName, MsgSeqNo, _, State) -> - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, _, _, undefined, _, State) -> - State; -process_routing_result(routed, QPids, XName, MsgSeqNo, _, State) -> - #ch{unconfirmed_mq = UMQ, unconfirmed_qm = UQM} = State, - UMQ1 = gb_trees:insert(MsgSeqNo, {XName, gb_sets:from_list(QPids)}, UMQ), - SingletonSet = gb_sets:singleton(MsgSeqNo), - UQM1 = lists:foldl( - fun (QPid, UQM2) -> - maybe_monitor(QPid), - case gb_trees:lookup(QPid, UQM2) of - {value, MsgSeqNos} -> - MsgSeqNos1 = gb_sets:insert(MsgSeqNo, MsgSeqNos), - gb_trees:update(QPid, MsgSeqNos1, UQM2); - none -> - gb_trees:insert(QPid, SingletonSet, UQM2) - end - end, UQM, QPids), - State#ch{unconfirmed_mq = UMQ1, unconfirmed_qm = UQM1}. - -lock_message(true, MsgStruct, State = #ch{unacked_message_q = UAMQ}) -> - State#ch{unacked_message_q = queue:in(MsgStruct, UAMQ)}; -lock_message(false, _MsgStruct, State) -> - State. - -send_nacks([], State) -> - State; -send_nacks(MXs, State) -> - MsgSeqNos = [ MsgSeqNo || {MsgSeqNo, _} <- MXs ], - coalesce_and_send(MsgSeqNos, - fun(MsgSeqNo, Multiple) -> - #'basic.nack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State). - -send_confirms(State = #ch{confirmed = C}) -> - C1 = lists:append(C), - MsgSeqNos = [ begin maybe_incr_stats([{ExchangeName, 1}], confirm, State), - MsgSeqNo - end || {MsgSeqNo, ExchangeName} <- C1 ], - send_confirms(MsgSeqNos, State #ch{confirmed = []}). -send_confirms([], State) -> - State; -send_confirms([MsgSeqNo], State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, - #'basic.ack'{delivery_tag = MsgSeqNo}), - State; -send_confirms(Cs, State) -> - coalesce_and_send(Cs, fun(MsgSeqNo, Multiple) -> - #'basic.ack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State). - -coalesce_and_send(MsgSeqNos, MkMsgFun, - State = #ch{writer_pid = WriterPid, unconfirmed_mq = UMQ}) -> - SMsgSeqNos = lists:usort(MsgSeqNos), - CutOff = case gb_trees:is_empty(UMQ) of - true -> lists:last(SMsgSeqNos) + 1; - false -> {SeqNo, _XQ} = gb_trees:smallest(UMQ), SeqNo - end, - {Ms, Ss} = lists:splitwith(fun(X) -> X < CutOff end, SMsgSeqNos), - case Ms of - [] -> ok; - _ -> ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(lists:last(Ms), true)) - end, - [ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(SeqNo, false)) || SeqNo <- Ss], - State. - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, _) -> self(); -i(connection, #ch{connection_pid = Connection}) -> Connection; -i(number, #ch{channel = Channel}) -> Channel; -i(user, #ch{user = User}) -> User#user.username; -i(vhost, #ch{virtual_host = VHost}) -> VHost; -i(transactional, #ch{transaction_id = TxnKey}) -> TxnKey =/= none; -i(confirm, #ch{confirm_enabled = CE}) -> CE; -i(consumer_count, #ch{consumer_mapping = ConsumerMapping}) -> - dict:size(ConsumerMapping); -i(messages_unconfirmed, #ch{unconfirmed_mq = UMQ}) -> - gb_trees:size(UMQ); -i(messages_unacknowledged, #ch{unacked_message_q = UAMQ, - uncommitted_ack_q = UAQ}) -> - queue:len(UAMQ) + queue:len(UAQ); -i(acks_uncommitted, #ch{uncommitted_ack_q = UAQ}) -> - queue:len(UAQ); -i(prefetch_count, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:get_limit(LimiterPid); -i(client_flow_blocked, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:is_blocked(LimiterPid); -i(Item, _) -> - throw({bad_argument, Item}). - -maybe_incr_stats(QXIncs, Measure, #ch{stats_timer = StatsTimer}) -> - case rabbit_event:stats_level(StatsTimer) of - fine -> [incr_stats(QX, Inc, Measure) || {QX, Inc} <- QXIncs]; - _ -> ok - end. - -incr_stats({QPid, _} = QX, Inc, Measure) -> - maybe_monitor(QPid), - update_measures(queue_exchange_stats, QX, Inc, Measure); -incr_stats(QPid, Inc, Measure) when is_pid(QPid) -> - maybe_monitor(QPid), - update_measures(queue_stats, QPid, Inc, Measure); -incr_stats(X, Inc, Measure) -> - update_measures(exchange_stats, X, Inc, Measure). - -maybe_monitor(QPid) -> - case get({monitoring, QPid}) of - undefined -> erlang:monitor(process, QPid), - put({monitoring, QPid}, true); - _ -> ok - end. - -update_measures(Type, QX, Inc, Measure) -> - Measures = case get({Type, QX}) of - undefined -> []; - D -> D - end, - Cur = case orddict:find(Measure, Measures) of - error -> 0; - {ok, C} -> C - end, - put({Type, QX}, - orddict:store(Measure, Cur + Inc, Measures)). - -internal_emit_stats(State) -> - internal_emit_stats(State, []). - -internal_emit_stats(State = #ch{stats_timer = StatsTimer}, Extra) -> - CoarseStats = infos(?STATISTICS_KEYS, State), - case rabbit_event:stats_level(StatsTimer) of - coarse -> - rabbit_event:notify(channel_stats, Extra ++ CoarseStats); - fine -> - FineStats = - [{channel_queue_stats, - [{QPid, Stats} || {{queue_stats, QPid}, Stats} <- get()]}, - {channel_exchange_stats, - [{X, Stats} || {{exchange_stats, X}, Stats} <- get()]}, - {channel_queue_exchange_stats, - [{QX, Stats} || - {{queue_exchange_stats, QX}, Stats} <- get()]}], - rabbit_event:notify(channel_stats, - Extra ++ CoarseStats ++ FineStats) - end. - -erase_queue_stats(QPid) -> - erase({monitoring, QPid}), - erase({queue_stats, QPid}), - [erase({queue_exchange_stats, QX}) || - {{queue_exchange_stats, QX = {QPid0, _}}, _} <- get(), QPid =:= QPid0]. diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl deleted file mode 100644 index 7eec0818..00000000 --- a/src/rabbit_channel_sup.erl +++ /dev/null @@ -1,93 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup). - --behaviour(supervisor2). - --export([start_link/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([start_link_args/0]). - --type(start_link_args() :: - {'tcp', rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), pid(), rabbit_types:protocol(), rabbit_types:user(), - rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()} | - {'direct', rabbit_channel:channel_number(), pid(), - rabbit_types:protocol(), rabbit_types:user(), rabbit_types:vhost(), - rabbit_framing:amqp_table(), pid()}). - --spec(start_link/1 :: (start_link_args()) -> {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link({tcp, Sock, Channel, FrameMax, ReaderPid, Protocol, User, VHost, - Capabilities, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, WriterPid} = - supervisor2:start_child( - SupPid, - {writer, {rabbit_writer, start_link, - [Sock, Channel, FrameMax, Protocol, ReaderPid]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_writer]}), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ReaderPid, WriterPid, ReaderPid, Protocol, - User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, AState} = rabbit_command_assembler:init(Protocol), - {ok, SupPid, {ChannelPid, AState}}; -start_link({direct, Channel, ClientChannelPid, ConnectionPid, Protocol, User, - VHost, Capabilities, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ClientChannelPid, ClientChannelPid, - ConnectionPid, Protocol, User, VHost, Capabilities, - Collector, start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, SupPid, {ChannelPid, none}}. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. - -start_limiter_fun(SupPid) -> - fun (UnackedCount) -> - Me = self(), - {ok, _Pid} = - supervisor2:start_child( - SupPid, - {limiter, {rabbit_limiter, start_link, [Me, UnackedCount]}, - transient, ?MAX_WAIT, worker, [rabbit_limiter]}) - end. diff --git a/src/rabbit_channel_sup_sup.erl b/src/rabbit_channel_sup_sup.erl deleted file mode 100644 index e2561c80..00000000 --- a/src/rabbit_channel_sup_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup_sup). - --behaviour(supervisor2). - --export([start_link/0, start_channel/2]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(start_channel/2 :: (pid(), rabbit_channel_sup:start_link_args()) -> - {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor2:start_link(?MODULE, []). - -start_channel(Pid, Args) -> - supervisor2:start_child(Pid, [Args]). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{channel_sup, {rabbit_channel_sup, start_link, []}, - temporary, infinity, supervisor, [rabbit_channel_sup]}]}}. diff --git a/src/rabbit_client_sup.erl b/src/rabbit_client_sup.erl deleted file mode 100644 index 15e92542..00000000 --- a/src/rabbit_client_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_client_sup). - --behaviour(supervisor2). - --export([start_link/1, start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (mfa()) -> - rabbit_types:ok_pid_or_error()). --spec(start_link/2 :: ({'local', atom()}, mfa()) -> - rabbit_types:ok_pid_or_error()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Callback) -> - supervisor2:start_link(?MODULE, Callback). - -start_link(SupName, Callback) -> - supervisor2:start_link(SupName, ?MODULE, Callback). - -init({M,F,A}) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{client, {M,F,A}, temporary, infinity, supervisor, [M]}]}}. diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl deleted file mode 100644 index 07036ce8..00000000 --- a/src/rabbit_command_assembler.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_command_assembler). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([analyze_frame/3, init/1, process/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame_type() :: ?FRAME_METHOD | ?FRAME_HEADER | ?FRAME_BODY | - ?FRAME_OOB_METHOD | ?FRAME_OOB_HEADER | ?FRAME_OOB_BODY | - ?FRAME_TRACE | ?FRAME_HEARTBEAT). --type(protocol() :: rabbit_framing:protocol()). --type(method() :: rabbit_framing:amqp_method_record()). --type(class_id() :: rabbit_framing:amqp_class_id()). --type(weight() :: non_neg_integer()). --type(body_size() :: non_neg_integer()). --type(content() :: rabbit_types:undecoded_content()). - --type(frame() :: - {'method', rabbit_framing:amqp_method_name(), binary()} | - {'content_header', class_id(), weight(), body_size(), binary()} | - {'content_body', binary()}). - --type(state() :: - {'method', protocol()} | - {'content_header', method(), class_id(), protocol()} | - {'content_body', method(), body_size(), class_id(), protocol()}). - --spec(analyze_frame/3 :: (frame_type(), binary(), protocol()) -> - frame() | 'heartbeat' | 'error'). - --spec(init/1 :: (protocol()) -> {ok, state()}). --spec(process/2 :: (frame(), state()) -> - {ok, state()} | - {ok, method(), state()} | - {ok, method(), content(), state()} | - {error, rabbit_types:amqp_error()}). - --endif. - -%%-------------------------------------------------------------------- - -analyze_frame(?FRAME_METHOD, - <>, - Protocol) -> - MethodName = Protocol:lookup_method_name({ClassId, MethodId}), - {method, MethodName, MethodFields}; -analyze_frame(?FRAME_HEADER, - <>, - _Protocol) -> - {content_header, ClassId, Weight, BodySize, Properties}; -analyze_frame(?FRAME_BODY, Body, _Protocol) -> - {content_body, Body}; -analyze_frame(?FRAME_HEARTBEAT, <<>>, _Protocol) -> - heartbeat; -analyze_frame(_Type, _Body, _Protocol) -> - error. - -init(Protocol) -> {ok, {method, Protocol}}. - -process({method, MethodName, FieldsBin}, {method, Protocol}) -> - try - Method = Protocol:decode_method_fields(MethodName, FieldsBin), - case Protocol:method_has_content(MethodName) of - true -> {ClassId, _MethodId} = Protocol:method_id(MethodName), - {ok, {content_header, Method, ClassId, Protocol}}; - false -> {ok, Method, {method, Protocol}} - end - catch exit:#amqp_error{} = Reason -> {error, Reason} - end; -process(_Frame, {method, _Protocol}) -> - unexpected_frame("expected method frame, " - "got non method frame instead", [], none); -process({content_header, ClassId, 0, 0, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, Method, Content, {method, Protocol}}; -process({content_header, ClassId, 0, BodySize, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, {content_body, Method, BodySize, Content, Protocol}}; -process({content_header, HeaderClassId, 0, _BodySize, _PropertiesBin}, - {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got one for class ~w instead", - [ClassId, HeaderClassId], Method); -process(_Frame, {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got non content header frame instead", [ClassId], Method); -process({content_body, FragmentBin}, - {content_body, Method, RemainingSize, - Content = #content{payload_fragments_rev = Fragments}, Protocol}) -> - NewContent = Content#content{ - payload_fragments_rev = [FragmentBin | Fragments]}, - case RemainingSize - size(FragmentBin) of - 0 -> {ok, Method, NewContent, {method, Protocol}}; - Sz -> {ok, {content_body, Method, Sz, NewContent, Protocol}} - end; -process(_Frame, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("expected content body, " - "got non content body frame instead", [], Method). - -%%-------------------------------------------------------------------- - -empty_content(ClassId, PropertiesBin, Protocol) -> - #content{class_id = ClassId, - properties = none, - properties_bin = PropertiesBin, - protocol = Protocol, - payload_fragments_rev = []}. - -unexpected_frame(Format, Params, Method) when is_atom(Method) -> - {error, rabbit_misc:amqp_error(unexpected_frame, Format, Params, Method)}; -unexpected_frame(Format, Params, Method) -> - unexpected_frame(Format, Params, rabbit_misc:method_record_type(Method)). diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl deleted file mode 100644 index b2aba2ee..00000000 --- a/src/rabbit_connection_sup.erl +++ /dev/null @@ -1,65 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_connection_sup). - --behaviour(supervisor2). - --export([start_link/0, reader/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid(), pid()}). --spec(reader/1 :: (pid()) -> pid()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link() -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, Collector} = - supervisor2:start_child( - SupPid, - {collector, {rabbit_queue_collector, start_link, []}, - intrinsic, ?MAX_WAIT, worker, [rabbit_queue_collector]}), - {ok, ChannelSupSupPid} = - supervisor2:start_child( - SupPid, - {channel_sup_sup, {rabbit_channel_sup_sup, start_link, []}, - intrinsic, infinity, supervisor, [rabbit_channel_sup_sup]}), - {ok, ReaderPid} = - supervisor2:start_child( - SupPid, - {reader, {rabbit_reader, start_link, - [ChannelSupSupPid, Collector, - rabbit_heartbeat:start_heartbeat_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_reader]}), - {ok, SupPid, ReaderPid}. - -reader(Pid) -> - hd(supervisor2:find_child(Pid, reader)). - -%%-------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl deleted file mode 100644 index 8364ecd8..00000000 --- a/src/rabbit_control.erl +++ /dev/null @@ -1,420 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_control). --include("rabbit.hrl"). - --export([start/0, stop/0, action/5, diagnostics/1]). - --define(RPC_TIMEOUT, infinity). --define(WAIT_FOR_VM_ATTEMPTS, 5). - --define(QUIET_OPT, "-q"). --define(NODE_OPT, "-n"). --define(VHOST_OPT, "-p"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(action/5 :: - (atom(), node(), [string()], [{string(), any()}], - fun ((string(), [any()]) -> 'ok')) - -> 'ok'). --spec(diagnostics/1 :: (node()) -> [{string(), [any()]}]). --spec(usage/0 :: () -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), - {[Command0 | Args], Opts} = - case rabbit_misc:get_options([{flag, ?QUIET_OPT}, - {option, ?NODE_OPT, NodeStr}, - {option, ?VHOST_OPT, "/"}], - init:get_plain_arguments()) of - {[], _Opts} -> usage(); - CmdArgsAndOpts -> CmdArgsAndOpts - end, - Opts1 = [case K of - ?NODE_OPT -> {?NODE_OPT, rabbit_misc:makenode(V)}; - _ -> {K, V} - end || {K, V} <- Opts], - Command = list_to_atom(Command0), - Quiet = proplists:get_bool(?QUIET_OPT, Opts1), - Node = proplists:get_value(?NODE_OPT, Opts1), - Inform = case Quiet of - true -> fun (_Format, _Args1) -> ok end; - false -> fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end - end, - %% The reason we don't use a try/catch here is that rpc:call turns - %% thrown errors into normal return values - case catch action(Command, Node, Args, Opts, Inform) of - ok -> - case Quiet of - true -> ok; - false -> io:format("...done.~n") - end, - quit(0); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error("invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]), - usage(); - {error, Reason} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, {'EXIT', Reason}} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, Reason} -> - print_error("unable to connect to node ~w: ~w", [Node, Reason]), - print_badrpc_diagnostics(Node), - quit(2); - Other -> - print_error("~p", [Other]), - quit(2) - end. - -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - -print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - -print_badrpc_diagnostics(Node) -> - [fmt_stderr(Fmt, Args) || {Fmt, Args} <- diagnostics(Node)]. - -diagnostics(Node) -> - {_NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - [{"diagnostics:", []}, - case net_adm:names(NodeHost) of - {error, EpmdReason} -> - {"- unable to connect to epmd on ~s: ~w", - [NodeHost, EpmdReason]}; - {ok, NamePorts} -> - {"- nodes and their ports on ~s: ~p", - [NodeHost, [{list_to_atom(Name), Port} || - {Name, Port} <- NamePorts]]} - end, - {"- current node: ~w", [node()]}, - case init:get_argument(home) of - {ok, [[Home]]} -> {"- current node home dir: ~s", [Home]}; - Other -> {"- no current node home dir: ~p", [Other]} - end, - {"- current node cookie hash: ~s", [rabbit_misc:cookie_hash()]}]. - -stop() -> - ok. - -usage() -> - io:format("~s", [rabbit_ctl_usage:usage()]), - quit(1). - -action(stop, Node, [], _Opts, Inform) -> - Inform("Stopping and halting node ~p", [Node]), - call(Node, {rabbit, stop_and_halt, []}); - -action(stop_app, Node, [], _Opts, Inform) -> - Inform("Stopping node ~p", [Node]), - call(Node, {rabbit, stop, []}); - -action(start_app, Node, [], _Opts, Inform) -> - Inform("Starting node ~p", [Node]), - call(Node, {rabbit, start, []}); - -action(reset, Node, [], _Opts, Inform) -> - Inform("Resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, reset, []}); - -action(force_reset, Node, [], _Opts, Inform) -> - Inform("Forcefully resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, force_reset, []}); - -action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); - -action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); - -action(status, Node, [], _Opts, Inform) -> - Inform("Status of node ~p", [Node]), - case call(Node, {rabbit, status, []}) of - {badrpc, _} = Res -> Res; - Res -> io:format("~p~n", [Res]), - ok - end; - -action(rotate_logs, Node, [], _Opts, Inform) -> - Inform("Reopening logs for node ~p", [Node]), - call(Node, {rabbit, rotate_logs, [""]}); -action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), - call(Node, {rabbit, rotate_logs, Args}); - -action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> - Inform("Closing connection ~s", [PidStr]), - rpc_call(Node, rabbit_networking, close_connection, - [rabbit_misc:string_to_pid(PidStr), Explanation]); - -action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> - Inform("Creating user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, add_user, Args}); - -action(delete_user, Node, Args = [_Username], _Opts, Inform) -> - Inform("Deleting user ~p", Args), - call(Node, {rabbit_auth_backend_internal, delete_user, Args}); - -action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> - Inform("Changing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, change_password, Args}); - -action(clear_password, Node, Args = [Username], _Opts, Inform) -> - Inform("Clearing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_password, Args}); - -action(set_admin, Node, [Username], _Opts, Inform) -> - Inform("Setting administrative status for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, set_admin, [Username]}); - -action(clear_admin, Node, [Username], _Opts, Inform) -> - Inform("Clearing administrative status for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_admin, [Username]}); - -action(list_users, Node, [], _Opts, Inform) -> - Inform("Listing users", []), - display_list(call(Node, {rabbit_auth_backend_internal, list_users, []})); - -action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Creating vhost ~p", Args), - call(Node, {rabbit_vhost, add, Args}); - -action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Deleting vhost ~p", Args), - call(Node, {rabbit_vhost, delete, Args}); - -action(list_vhosts, Node, [], _Opts, Inform) -> - Inform("Listing vhosts", []), - display_list(call(Node, {rabbit_vhost, list, []})); - -action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> - Inform("Listing permissions for user ~p", Args), - display_list(call(Node, {rabbit_auth_backend_internal, - list_user_permissions, Args})); - -action(list_queues, Node, Args, Opts, Inform) -> - Inform("Listing queues", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, messages]), - display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_exchanges, Node, Args, Opts, Inform) -> - Inform("Listing exchanges", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, type]), - display_info_list(rpc_call(Node, rabbit_exchange, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_bindings, Node, Args, Opts, Inform) -> - Inform("Listing bindings", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]), - display_info_list(rpc_call(Node, rabbit_binding, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_connections, Node, Args, _Opts, Inform) -> - Inform("Listing connections", []), - ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), - display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, - [ArgAtoms]), - ArgAtoms); - -action(list_channels, Node, Args, _Opts, Inform) -> - Inform("Listing channels", []), - ArgAtoms = default_if_empty(Args, [pid, user, transactional, consumer_count, - messages_unacknowledged]), - display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); - -action(list_consumers, Node, _Args, Opts, Inform) -> - Inform("Listing consumers", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - InfoKeys = [queue_name, channel_pid, consumer_tag, ack_required], - case rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg]) of - L when is_list(L) -> display_info_list( - [lists:zip(InfoKeys, tuple_to_list(X)) || - X <- L], - InfoKeys); - Other -> Other - end; - -action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, [Username], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, clear_permissions, - [Username, VHost]}); - -action(list_permissions, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Listing permissions in vhost ~p", [VHost]), - display_list(call(Node, {rabbit_auth_backend_internal, - list_vhost_permissions, [VHost]})); - -action(wait, Node, [], _Opts, Inform) -> - Inform("Waiting for ~p", [Node]), - wait_for_application(Node, ?WAIT_FOR_VM_ATTEMPTS). - -wait_for_application(Node, Attempts) -> - case rpc_call(Node, application, which_applications, [infinity]) of - {badrpc, _} = E -> NewAttempts = Attempts - 1, - case NewAttempts of - 0 -> E; - _ -> wait_for_application0(Node, NewAttempts) - end; - Apps -> case proplists:is_defined(rabbit, Apps) of - %% We've seen the node up; if it goes down - %% die immediately. - true -> ok; - false -> wait_for_application0(Node, 0) - end - end. - -wait_for_application0(Node, Attempts) -> - timer:sleep(1000), - wait_for_application(Node, Attempts). - -default_if_empty(List, Default) when is_list(List) -> - if List == [] -> Default; - true -> [list_to_atom(X) || X <- List] - end. - -display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach( - fun (Result) -> display_row( - [format_info_item(proplists:get_value(X, Result)) || - X <- InfoItemKeys]) - end, Results), - ok; -display_info_list(Other, _) -> - Other. - -display_row(Row) -> - io:fwrite(string:join(Row, "\t")), - io:nl(). - --define(IS_U8(X), (X >= 0 andalso X =< 255)). --define(IS_U16(X), (X >= 0 andalso X =< 65535)). - -format_info_item(#resource{name = Name}) -> - escape(Name); -format_info_item({N1, N2, N3, N4} = Value) when - ?IS_U8(N1), ?IS_U8(N2), ?IS_U8(N3), ?IS_U8(N4) -> - rabbit_misc:ntoa(Value); -format_info_item({K1, K2, K3, K4, K5, K6, K7, K8} = Value) when - ?IS_U16(K1), ?IS_U16(K2), ?IS_U16(K3), ?IS_U16(K4), - ?IS_U16(K5), ?IS_U16(K6), ?IS_U16(K7), ?IS_U16(K8) -> - rabbit_misc:ntoa(Value); -format_info_item(Value) when is_pid(Value) -> - rabbit_misc:pid_to_string(Value); -format_info_item(Value) when is_binary(Value) -> - escape(Value); -format_info_item(Value) when is_atom(Value) -> - escape(atom_to_list(Value)); -format_info_item([{TableEntryKey, TableEntryType, _TableEntryValue} | _] = - Value) when is_binary(TableEntryKey) andalso - is_atom(TableEntryType) -> - io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); -format_info_item(Value) -> - io_lib:format("~w", [Value]). - -display_list(L) when is_list(L) -> - lists:foreach(fun (I) when is_binary(I) -> - io:format("~s~n", [escape(I)]); - (I) when is_tuple(I) -> - display_row([escape(V) - || V <- tuple_to_list(I)]) - end, - lists:sort(L)), - ok; -display_list(Other) -> Other. - -call(Node, {Mod, Fun, Args}) -> - rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). - -rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). - -%% escape does C-style backslash escaping of non-printable ASCII -%% characters. We don't escape characters above 127, since they may -%% form part of UTF-8 strings. - -escape(Atom) when is_atom(Atom) -> - escape(atom_to_list(Atom)); -escape(Bin) when is_binary(Bin) -> - escape(binary_to_list(Bin)); -escape(L) when is_list(L) -> - escape_char(lists:reverse(L), []). - -escape_char([$\\ | T], Acc) -> - escape_char(T, [$\\, $\\ | Acc]); -escape_char([X | T], Acc) when X >= 32, X /= 127 -> - escape_char(T, [X | Acc]); -escape_char([X | T], Acc) -> - escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), - $0 + (X band 7) | Acc]); -escape_char([], Acc) -> - Acc. - -prettify_amqp_table(Table) -> - [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. - -prettify_typed_amqp_value(Type, Value) -> - case Type of - longstr -> escape(Value); - table -> prettify_amqp_table(Value); - array -> [prettify_typed_amqp_value(T, V) || {T, V} <- Value]; - _ -> Value - end. - -%% the slower shutdown on windows required to flush stdout -quit(Status) -> - case os:type() of - {unix, _} -> - halt(Status); - {win32, _} -> - init:stop(Status) - end. diff --git a/src/rabbit_direct.erl b/src/rabbit_direct.erl deleted file mode 100644 index 568cbea3..00000000 --- a/src/rabbit_direct.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_direct). - --export([boot/0, connect/4, start_channel/8]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(boot/0 :: () -> 'ok'). --spec(connect/4 :: (binary(), binary(), binary(), rabbit_types:protocol()) -> - {'ok', {rabbit_types:user(), - rabbit_framing:amqp_table()}}). --spec(start_channel/8 :: - (rabbit_channel:channel_number(), pid(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()) -> {'ok', pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - {ok, _} = - supervisor2:start_child( - rabbit_sup, - {rabbit_direct_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_direct_client_sup}, - {rabbit_channel_sup, start_link, []}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%%---------------------------------------------------------------------------- - -connect(Username, Password, VHost, Protocol) -> - case lists:keymember(rabbit, 1, application:which_applications()) of - true -> - try rabbit_access_control:user_pass_login(Username, Password) of - #user{} = User -> - try rabbit_access_control:check_vhost_access(User, VHost) of - ok -> {ok, {User, - rabbit_reader:server_properties(Protocol)}} - catch - exit:#amqp_error{name = access_refused} -> - {error, access_refused} - end - catch - exit:#amqp_error{name = access_refused} -> {error, auth_failure} - end; - false -> - {error, broker_not_found_on_node} - end. - -start_channel(Number, ClientChannelPid, ConnectionPid, Protocol, User, VHost, - Capabilities, Collector) -> - {ok, _, {ChannelPid, _}} = - supervisor2:start_child( - rabbit_direct_client_sup, - [{direct, Number, ClientChannelPid, ConnectionPid, Protocol, User, - VHost, Capabilities, Collector}]), - {ok, ChannelPid}. diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl deleted file mode 100644 index 0120f0d6..00000000 --- a/src/rabbit_error_logger.erl +++ /dev/null @@ -1,74 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(LOG_EXCH_NAME, <<"amq.rabbitmq.log">>). - --behaviour(gen_event). - --export([boot/0]). - --export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, - handle_info/2]). - -boot() -> - {ok, DefaultVHost} = application:get_env(default_vhost), - ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). - -init([DefaultVHost]) -> - #exchange{} = rabbit_exchange:declare( - rabbit_misc:r(DefaultVHost, exchange, ?LOG_EXCH_NAME), - topic, true, false, false, []), - {ok, #resource{virtual_host = DefaultVHost, - kind = exchange, - name = ?LOG_EXCH_NAME}}. - -terminate(_Arg, _State) -> - terminated_ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State) -> - ok = publish(Kind, Format, Data, State), - {ok, State}; -handle_event(_Event, State) -> - {ok, State}. - -handle_info(_Info, State) -> - {ok, State}. - -publish(error, Format, Data, State) -> - publish1(<<"error">>, Format, Data, State); -publish(warning_msg, Format, Data, State) -> - publish1(<<"warning">>, Format, Data, State); -publish(info_msg, Format, Data, State) -> - publish1(<<"info">>, Format, Data, State); -publish(_Other, _Format, _Data, _State) -> - ok. - -publish1(RoutingKey, Format, Data, LogExch) -> - {ok, _RoutingRes, _DeliveredQPids} = - rabbit_basic:publish(LogExch, RoutingKey, false, false, none, - #'P_basic'{content_type = <<"text/plain">>}, - list_to_binary(io_lib:format(Format, Data))), - ok. diff --git a/src/rabbit_error_logger_file_h.erl b/src/rabbit_error_logger_file_h.erl deleted file mode 100644 index 7e9ebc4f..00000000 --- a/src/rabbit_error_logger_file_h.erl +++ /dev/null @@ -1,68 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_error_logger_file_h is a wrapper around the error_logger_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers in log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without performing -%% log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(File). - -handle_event(Event, State) -> - error_logger_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - error_logger_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - error_logger_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - error_logger_file_h:terminate(Reason, State). - -code_change(OldVsn, State, Extra) -> - error_logger_file_h:code_change(OldVsn, State, Extra). diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl deleted file mode 100644 index 9ed532db..00000000 --- a/src/rabbit_event.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_event). - --include("rabbit.hrl"). - --export([start_link/0]). --export([init_stats_timer/0, ensure_stats_timer/2, stop_stats_timer/1]). --export([reset_stats_timer/1]). --export([stats_level/1, if_enabled/2]). --export([notify/2, notify_if/3]). - -%%---------------------------------------------------------------------------- - --record(state, {level, timer}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([event_type/0, event_props/0, event_timestamp/0, event/0]). - --type(event_type() :: atom()). --type(event_props() :: term()). --type(event_timestamp() :: - {non_neg_integer(), non_neg_integer(), non_neg_integer()}). - --type(event() :: #event { - type :: event_type(), - props :: event_props(), - timestamp :: event_timestamp() - }). - --type(level() :: 'none' | 'coarse' | 'fine'). - --opaque(state() :: #state { - level :: level(), - timer :: atom() - }). - --type(timer_fun() :: fun (() -> 'ok')). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(init_stats_timer/0 :: () -> state()). --spec(ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). --spec(stop_stats_timer/1 :: (state()) -> state()). --spec(reset_stats_timer/1 :: (state()) -> state()). --spec(stats_level/1 :: (state()) -> level()). --spec(if_enabled/2 :: (state(), timer_fun()) -> 'ok'). --spec(notify/2 :: (event_type(), event_props()) -> 'ok'). --spec(notify_if/3 :: (boolean(), event_type(), event_props()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_event:start_link({local, ?MODULE}). - -%% The idea is, for each stat-emitting object: -%% -%% On startup: -%% Timer = init_stats_timer() -%% notify(created event) -%% if_enabled(internal_emit_stats) - so we immediately send something -%% -%% On wakeup: -%% ensure_stats_timer(Timer, emit_stats) -%% (Note we can't emit stats immediately, the timer may have fired 1ms ago.) -%% -%% emit_stats: -%% if_enabled(internal_emit_stats) -%% reset_stats_timer(Timer) - just bookkeeping -%% -%% Pre-hibernation: -%% if_enabled(internal_emit_stats) -%% stop_stats_timer(Timer) -%% -%% internal_emit_stats: -%% notify(stats) - -init_stats_timer() -> - {ok, StatsLevel} = application:get_env(rabbit, collect_statistics), - #state{level = StatsLevel, timer = undefined}. - -ensure_stats_timer(State = #state{level = none}, _Fun) -> - State; -ensure_stats_timer(State = #state{timer = undefined}, Fun) -> - {ok, TRef} = timer:apply_after(?STATS_INTERVAL, - erlang, apply, [Fun, []]), - State#state{timer = TRef}; -ensure_stats_timer(State, _Fun) -> - State. - -stop_stats_timer(State = #state{level = none}) -> - State; -stop_stats_timer(State = #state{timer = undefined}) -> - State; -stop_stats_timer(State = #state{timer = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#state{timer = undefined}. - -reset_stats_timer(State) -> - State#state{timer = undefined}. - -stats_level(#state{level = Level}) -> - Level. - -if_enabled(#state{level = none}, _Fun) -> - ok; -if_enabled(_State, Fun) -> - Fun(), - ok. - -notify_if(true, Type, Props) -> notify(Type, Props); -notify_if(false, _Type, _Props) -> ok. - -notify(Type, Props) -> - %% TODO: switch to os:timestamp() when we drop support for - %% Erlang/OTP < R13B01 - gen_event:notify(rabbit_event, #event{type = Type, - props = Props, - timestamp = now()}). diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl deleted file mode 100644 index a463e570..00000000 --- a/src/rabbit_exchange.erl +++ /dev/null @@ -1,310 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([recover/0, declare/6, lookup/1, lookup_or_die/1, list/1, info_keys/0, - info/1, info/2, info_all/1, info_all/2, publish/2, delete/2]). --export([callback/3]). -%% this must be run inside a mnesia tx --export([maybe_auto_delete/1]). --export([assert_equivalence/6, assert_args_equivalence/2, check_type/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, type/0]). - --type(name() :: rabbit_types:r('exchange')). --type(type() :: atom()). - --spec(recover/0 :: () -> 'ok'). --spec(declare/6 :: - (name(), type(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> rabbit_types:exchange()). --spec(check_type/1 :: - (binary()) -> atom() | rabbit_types:connection_exit()). --spec(assert_equivalence/6 :: - (rabbit_types:exchange(), atom(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:exchange()) | - rabbit_types:error('not_found')). --spec(lookup_or_die/1 :: - (name()) -> rabbit_types:exchange() | - rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:exchange()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:exchange()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:exchange(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(publish/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> {rabbit_router:routing_result(), [pid()]}). --spec(delete/2 :: - (name(), boolean())-> 'ok' | - rabbit_types:error('not_found') | - rabbit_types:error('in_use')). --spec(maybe_auto_delete/1:: - (rabbit_types:exchange()) - -> 'not_deleted' | {'deleted', rabbit_binding:deletions()}). --spec(callback/3:: (rabbit_types:exchange(), atom(), [any()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [name, type, durable, auto_delete, internal, arguments]). - -recover() -> - Xs = rabbit_misc:table_fold( - fun (X, Acc) -> - ok = mnesia:write(rabbit_exchange, X, write), - [X | Acc] - end, [], rabbit_durable_exchange), - Bs = rabbit_binding:recover(), - recover_with_bindings( - lists:keysort(#binding.source, Bs), - lists:keysort(#exchange.name, Xs), []). - -recover_with_bindings([B = #binding{source = XName} | Rest], - Xs = [#exchange{name = XName} | _], - Bindings) -> - recover_with_bindings(Rest, Xs, [B | Bindings]); -recover_with_bindings(Bs, [X = #exchange{type = Type} | Xs], Bindings) -> - (type_to_module(Type)):recover(X, Bindings), - recover_with_bindings(Bs, Xs, []); -recover_with_bindings([], [], []) -> - ok. - -declare(XName, Type, Durable, AutoDelete, Internal, Args) -> - X = #exchange{name = XName, - type = Type, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - arguments = Args}, - %% We want to upset things if it isn't ok - ok = (type_to_module(Type)):validate(X), - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_exchange, XName}) of - [] -> - ok = mnesia:write(rabbit_exchange, X, write), - ok = case Durable of - true -> mnesia:write(rabbit_durable_exchange, - X, write); - false -> ok - end, - {new, X}; - [ExistingX] -> - {existing, ExistingX} - end - end, - fun ({new, Exchange}, Tx) -> - callback(Exchange, create, [Tx, Exchange]), - rabbit_event:notify_if(not Tx, exchange_created, info(Exchange)), - Exchange; - ({existing, Exchange}, _Tx) -> - Exchange; - (Err, _Tx) -> - Err - end). - -%% Used with atoms from records; e.g., the type is expected to exist. -type_to_module(T) -> - {ok, Module} = rabbit_registry:lookup_module(exchange, T), - Module. - -%% Used with binaries sent over the wire; the type may not exist. -check_type(TypeBin) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown exchange type '~s'", [TypeBin]); - T -> - case rabbit_registry:lookup_module(exchange, T) of - {error, not_found} -> rabbit_misc:protocol_error( - command_invalid, - "invalid exchange type '~s'", [T]); - {ok, _Module} -> T - end - end. - -assert_equivalence(X = #exchange{ durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - type = Type}, - Type, Durable, AutoDelete, Internal, RequiredArgs) -> - (type_to_module(Type)):assert_args_equivalence(X, RequiredArgs); -assert_equivalence(#exchange{ name = Name }, - _Type, _Durable, _Internal, _AutoDelete, _Args) -> - rabbit_misc:protocol_error( - precondition_failed, - "cannot redeclare ~s with different type, durable, " - "internal or autodelete value", - [rabbit_misc:rs(Name)]). - -assert_args_equivalence(#exchange{ name = Name, arguments = Args }, - RequiredArgs) -> - %% The spec says "Arguments are compared for semantic - %% equivalence". The only arg we care about is - %% "alternate-exchange". - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, Name, - [<<"alternate-exchange">>]). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_exchange, Name}). - -lookup_or_die(Name) -> - case lookup(Name) of - {ok, X} -> X; - {error, not_found} -> rabbit_misc:not_found(Name) - end. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_exchange, - #exchange{name = rabbit_misc:r(VHostPath, exchange), _ = '_'}). - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, X) -> [{Item, i(Item, X)} || Item <- Items]. - -i(name, #exchange{name = Name}) -> Name; -i(type, #exchange{type = Type}) -> Type; -i(durable, #exchange{durable = Durable}) -> Durable; -i(auto_delete, #exchange{auto_delete = AutoDelete}) -> AutoDelete; -i(internal, #exchange{internal = Internal}) -> Internal; -i(arguments, #exchange{arguments = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(X = #exchange{}) -> infos(?INFO_KEYS, X). - -info(X = #exchange{}, Items) -> infos(Items, X). - -info_all(VHostPath) -> map(VHostPath, fun (X) -> info(X) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (X) -> info(X, Items) end). - -publish(X = #exchange{name = XName}, Delivery) -> - rabbit_router:deliver( - route(Delivery, {queue:from_list([X]), XName, []}), - Delivery). - -route(Delivery, {WorkList, SeenXs, QNames}) -> - case queue:out(WorkList) of - {empty, _WorkList} -> - lists:usort(QNames); - {{value, X = #exchange{type = Type}}, WorkList1} -> - DstNames = process_alternate( - X, ((type_to_module(Type)):route(X, Delivery))), - route(Delivery, - lists:foldl(fun process_route/2, {WorkList1, SeenXs, QNames}, - DstNames)) - end. - -process_alternate(#exchange{name = XName, arguments = Args}, []) -> - case rabbit_misc:r_arg(XName, exchange, Args, <<"alternate-exchange">>) of - undefined -> []; - AName -> [AName] - end; -process_alternate(_X, Results) -> - Results. - -process_route(#resource{kind = exchange} = XName, - {_WorkList, XName, _QNames} = Acc) -> - Acc; -process_route(#resource{kind = exchange} = XName, - {WorkList, #resource{kind = exchange} = SeenX, QNames}) -> - {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:from_list([SeenX, XName]), QNames}; -process_route(#resource{kind = exchange} = XName, - {WorkList, SeenXs, QNames} = Acc) -> - case gb_sets:is_element(XName, SeenXs) of - true -> Acc; - false -> {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:add_element(XName, SeenXs), QNames} - end; -process_route(#resource{kind = queue} = QName, - {WorkList, SeenXs, QNames}) -> - {WorkList, SeenXs, [QName | QNames]}. - -call_with_exchange(XName, Fun, PrePostCommitFun) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> case mnesia:read({rabbit_exchange, XName}) of - [] -> {error, not_found}; - [X] -> Fun(X) - end - end, PrePostCommitFun). - -delete(XName, IfUnused) -> - call_with_exchange( - XName, - case IfUnused of - true -> fun conditional_delete/1; - false -> fun unconditional_delete/1 - end, - fun ({deleted, X, Bs, Deletions}, Tx) -> - ok = rabbit_binding:process_deletions( - rabbit_binding:add_deletion( - XName, {X, deleted, Bs}, Deletions), Tx); - (Error = {error, _InUseOrNotFound}, _Tx) -> - Error - end). - -maybe_auto_delete(#exchange{auto_delete = false}) -> - not_deleted; -maybe_auto_delete(#exchange{auto_delete = true} = X) -> - case conditional_delete(X) of - {error, in_use} -> not_deleted; - {deleted, X, [], Deletions} -> {deleted, Deletions} - end. - -callback(#exchange{type = XType}, Fun, Args) -> - apply(type_to_module(XType), Fun, Args). - -conditional_delete(X = #exchange{name = XName}) -> - case rabbit_binding:has_for_source(XName) of - false -> unconditional_delete(X); - true -> {error, in_use} - end. - -unconditional_delete(X = #exchange{name = XName}) -> - ok = mnesia:delete({rabbit_durable_exchange, XName}), - ok = mnesia:delete({rabbit_exchange, XName}), - Bindings = rabbit_binding:remove_for_source(XName), - {deleted, X, Bindings, rabbit_binding:remove_for_destination(XName)}. diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl deleted file mode 100644 index 547583e9..00000000 --- a/src/rabbit_exchange_type.erl +++ /dev/null @@ -1,50 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - {description, 0}, - {route, 2}, - - %% called BEFORE declaration, to check args etc; may exit with #amqp_error{} - {validate, 1}, - - %% called after declaration when previously absent - {create, 2}, - - %% called when recovering - {recover, 2}, - - %% called after exchange deletion. - {delete, 3}, - - %% called after a binding has been added - {add_binding, 3}, - - %% called after bindings have been deleted. - {remove_bindings, 3}, - - %% called when comparing exchanges for equivalence - should return ok or - %% exit with #amqp_error{} - {assert_args_equivalence, 2} - - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_exchange_type_direct.erl b/src/rabbit_exchange_type_direct.erl deleted file mode 100644 index 349c2f6e..00000000 --- a/src/rabbit_exchange_type_direct.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_direct). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, - add_binding/3, remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type direct"}, - {mfa, {rabbit_registry, register, - [exchange, <<"direct">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"direct">>}, - {description, <<"AMQP direct exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{routing_keys = Routes}}) -> - rabbit_router:match_routing_key(Name, Routes). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_fanout.erl b/src/rabbit_exchange_type_fanout.erl deleted file mode 100644 index bc5293c8..00000000 --- a/src/rabbit_exchange_type_fanout.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_fanout). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type fanout"}, - {mfa, {rabbit_registry, register, - [exchange, <<"fanout">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"fanout">>}, - {description, <<"AMQP fanout exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, _Delivery) -> - rabbit_router:match_routing_key(Name, ['_']). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_headers.erl b/src/rabbit_exchange_type_headers.erl deleted file mode 100644 index d3529b06..00000000 --- a/src/rabbit_exchange_type_headers.erl +++ /dev/null @@ -1,122 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_headers). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type headers"}, - {mfa, {rabbit_registry, register, - [exchange, <<"headers">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --ifdef(use_specs). --spec(headers_match/2 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table()) -> boolean()). --endif. - -description() -> - [{name, <<"headers">>}, - {description, <<"AMQP headers exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{content = Content}}) -> - Headers = case (Content#content.properties)#'P_basic'.headers of - undefined -> []; - H -> rabbit_misc:sort_field_table(H) - end, - rabbit_router:match_bindings( - Name, fun (#binding{args = Spec}) -> headers_match(Spec, Headers) end). - -default_headers_match_kind() -> all. - -parse_x_match(<<"all">>) -> all; -parse_x_match(<<"any">>) -> any; -parse_x_match(Other) -> - rabbit_log:warning("Invalid x-match field value ~p; expected all or any", - [Other]), - default_headers_match_kind(). - -%% Horrendous matching algorithm. Depends for its merge-like -%% (linear-time) behaviour on the lists:keysort -%% (rabbit_misc:sort_field_table) that route/1 and -%% rabbit_binding:{add,remove}/2 do. -%% -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% In other words: REQUIRES BOTH PATTERN AND DATA TO BE SORTED ASCENDING BY KEY. -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% -headers_match(Pattern, Data) -> - MatchKind = case lists:keysearch(<<"x-match">>, 1, Pattern) of - {value, {_, longstr, MK}} -> parse_x_match(MK); - {value, {_, Type, MK}} -> - rabbit_log:warning("Invalid x-match field type ~p " - "(value ~p); expected longstr", - [Type, MK]), - default_headers_match_kind(); - _ -> default_headers_match_kind() - end, - headers_match(Pattern, Data, true, false, MatchKind). - -headers_match([], _Data, AllMatch, _AnyMatch, all) -> - AllMatch; -headers_match([], _Data, _AllMatch, AnyMatch, any) -> - AnyMatch; -headers_match([{<<"x-", _/binary>>, _PT, _PV} | PRest], Data, - AllMatch, AnyMatch, MatchKind) -> - headers_match(PRest, Data, AllMatch, AnyMatch, MatchKind); -headers_match(_Pattern, [], _AllMatch, AnyMatch, MatchKind) -> - headers_match([], [], false, AnyMatch, MatchKind); -headers_match(Pattern = [{PK, _PT, _PV} | _], [{DK, _DT, _DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK > DK -> - headers_match(Pattern, DRest, AllMatch, AnyMatch, MatchKind); -headers_match([{PK, _PT, _PV} | PRest], Data = [{DK, _DT, _DV} | _], - _AllMatch, AnyMatch, MatchKind) when PK < DK -> - headers_match(PRest, Data, false, AnyMatch, MatchKind); -headers_match([{PK, PT, PV} | PRest], [{DK, DT, DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK == DK -> - {AllMatch1, AnyMatch1} = - if - %% It's not properly specified, but a "no value" in a - %% pattern field is supposed to mean simple presence of - %% the corresponding data field. I've interpreted that to - %% mean a type of "void" for the pattern field. - PT == void -> {AllMatch, true}; - %% Similarly, it's not specified, but I assume that a - %% mismatched type causes a mismatched value. - PT =/= DT -> {false, AnyMatch}; - PV == DV -> {AllMatch, true}; - true -> {false, AnyMatch} - end, - headers_match(PRest, DRest, AllMatch1, AnyMatch1, MatchKind). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_topic.erl b/src/rabbit_exchange_type_topic.erl deleted file mode 100644 index ffd1e583..00000000 --- a/src/rabbit_exchange_type_topic.erl +++ /dev/null @@ -1,282 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_topic). - --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type topic"}, - {mfa, {rabbit_registry, register, - [exchange, <<"topic">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%%---------------------------------------------------------------------------- - -description() -> - [{name, <<"topic">>}, - {description, <<"AMQP topic exchange, as per the AMQP specification">>}]. - -%% NB: This may return duplicate results in some situations (that's ok) -route(#exchange{name = X}, - #delivery{message = #basic_message{routing_keys = Routes}}) -> - lists:append([begin - Words = split_topic_key(RKey), - mnesia:async_dirty(fun trie_match/2, [X, Words]) - end || RKey <- Routes]). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. - -recover(_Exchange, Bs) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - lists:foreach(fun (B) -> internal_add_binding(B) end, Bs) - end). - -delete(true, #exchange{name = X}, _Bs) -> - trie_remove_all_edges(X), - trie_remove_all_bindings(X), - ok; -delete(false, _Exchange, _Bs) -> - ok. - -add_binding(true, _Exchange, Binding) -> - internal_add_binding(Binding); -add_binding(false, _Exchange, _Binding) -> - ok. - -remove_bindings(true, #exchange{name = X}, Bs) -> - %% The remove process is split into two distinct phases. In the - %% first phase we gather the lists of bindings and edges to - %% delete, then in the second phase we process all the - %% deletions. This is to prevent interleaving of read/write - %% operations in mnesia that can adversely affect performance. - {ToDelete, Paths} = - lists:foldl( - fun(#binding{source = S, key = K, destination = D}, {Acc, PathAcc}) -> - Path = [{FinalNode, _} | _] = - follow_down_get_path(S, split_topic_key(K)), - {[{FinalNode, D} | Acc], - decrement_bindings(X, Path, maybe_add_path(X, Path, PathAcc))} - end, {[], gb_trees:empty()}, Bs), - - [trie_remove_binding(X, FinalNode, D) || {FinalNode, D} <- ToDelete], - [trie_remove_edge(X, Parent, Node, W) || - {Node, {Parent, W, {0, 0}}} <- gb_trees:to_list(Paths)], - ok; -remove_bindings(false, _X, _Bs) -> - ok. - -maybe_add_path(_X, [{root, none}], PathAcc) -> - PathAcc; -maybe_add_path(X, [{Node, W}, {Parent, _} | _], PathAcc) -> - case gb_trees:is_defined(Node, PathAcc) of - true -> PathAcc; - false -> gb_trees:insert(Node, {Parent, W, {trie_binding_count(X, Node), - trie_child_count(X, Node)}}, - PathAcc) - end. - -decrement_bindings(X, Path, PathAcc) -> - with_path_acc(X, fun({Bindings, Edges}) -> {Bindings - 1, Edges} end, - Path, PathAcc). - -decrement_edges(X, Path, PathAcc) -> - with_path_acc(X, fun({Bindings, Edges}) -> {Bindings, Edges - 1} end, - Path, PathAcc). - -with_path_acc(_X, _Fun, [{root, none}], PathAcc) -> - PathAcc; -with_path_acc(X, Fun, [{Node, _} | ParentPath], PathAcc) -> - {Parent, W, Counts} = gb_trees:get(Node, PathAcc), - NewCounts = Fun(Counts), - NewPathAcc = gb_trees:update(Node, {Parent, W, NewCounts}, PathAcc), - case NewCounts of - {0, 0} -> decrement_edges(X, ParentPath, - maybe_add_path(X, ParentPath, NewPathAcc)); - _ -> NewPathAcc - end. - - -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). - -%%---------------------------------------------------------------------------- - -internal_add_binding(#binding{source = X, key = K, destination = D}) -> - FinalNode = follow_down_create(X, split_topic_key(K)), - trie_add_binding(X, FinalNode, D), - ok. - -trie_match(X, Words) -> - trie_match(X, root, Words, []). - -trie_match(X, Node, [], ResAcc) -> - trie_match_part(X, Node, "#", fun trie_match_skip_any/4, [], - trie_bindings(X, Node) ++ ResAcc); -trie_match(X, Node, [W | RestW] = Words, ResAcc) -> - lists:foldl(fun ({WArg, MatchFun, RestWArg}, Acc) -> - trie_match_part(X, Node, WArg, MatchFun, RestWArg, Acc) - end, ResAcc, [{W, fun trie_match/4, RestW}, - {"*", fun trie_match/4, RestW}, - {"#", fun trie_match_skip_any/4, Words}]). - -trie_match_part(X, Node, Search, MatchFun, RestW, ResAcc) -> - case trie_child(X, Node, Search) of - {ok, NextNode} -> MatchFun(X, NextNode, RestW, ResAcc); - error -> ResAcc - end. - -trie_match_skip_any(X, Node, [], ResAcc) -> - trie_match(X, Node, [], ResAcc); -trie_match_skip_any(X, Node, [_ | RestW] = Words, ResAcc) -> - trie_match_skip_any(X, Node, RestW, - trie_match(X, Node, Words, ResAcc)). - -follow_down_create(X, Words) -> - case follow_down_last_node(X, Words) of - {ok, FinalNode} -> FinalNode; - {error, Node, RestW} -> lists:foldl( - fun (W, CurNode) -> - NewNode = new_node_id(), - trie_add_edge(X, CurNode, NewNode, W), - NewNode - end, Node, RestW) - end. - -follow_down_last_node(X, Words) -> - follow_down(X, fun (_, Node, _) -> Node end, root, Words). - -follow_down_get_path(X, Words) -> - {ok, Path} = - follow_down(X, fun (W, Node, PathAcc) -> [{Node, W} | PathAcc] end, - [{root, none}], Words), - Path. - -follow_down(X, AccFun, Acc0, Words) -> - follow_down(X, root, AccFun, Acc0, Words). - -follow_down(_X, _CurNode, _AccFun, Acc, []) -> - {ok, Acc}; -follow_down(X, CurNode, AccFun, Acc, Words = [W | RestW]) -> - case trie_child(X, CurNode, W) of - {ok, NextNode} -> follow_down(X, NextNode, AccFun, - AccFun(W, NextNode, Acc), RestW); - error -> {error, Acc, Words} - end. - -trie_child(X, Node, Word) -> - case mnesia:read(rabbit_topic_trie_edge, - #trie_edge{exchange_name = X, - node_id = Node, - word = Word}) of - [#topic_trie_edge{node_id = NextNode}] -> {ok, NextNode}; - [] -> error - end. - -trie_bindings(X, Node) -> - MatchHead = #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = '$1'}}, - mnesia:select(rabbit_topic_trie_binding, [{MatchHead, [], ['$1']}]). - -trie_add_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:write/3). - -trie_remove_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:delete_object/3). - -trie_edge_op(X, FromNode, ToNode, W, Op) -> - ok = Op(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = FromNode, - word = W}, - node_id = ToNode}, - write). - -trie_add_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:write/3). - -trie_remove_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:delete_object/3). - -trie_binding_op(X, Node, D, Op) -> - ok = Op(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = D}}, - write). - -trie_child_count(X, Node) -> - count(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -trie_binding_count(X, Node) -> - count(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -count(Table, Match) -> - length(mnesia:match_object(Table, Match, read)). - -trie_remove_all_edges(X) -> - remove_all(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - _ = '_'}, - _ = '_'}). - -trie_remove_all_bindings(X) -> - remove_all(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, _ = '_'}, - _ = '_'}). - -remove_all(Table, Pattern) -> - lists:foreach(fun (R) -> mnesia:delete_object(Table, R, write) end, - mnesia:match_object(Table, Pattern, write)). - -new_node_id() -> - rabbit_guid:guid(). - -split_topic_key(Key) -> - split_topic_key(Key, [], []). - -split_topic_key(<<>>, [], []) -> - []; -split_topic_key(<<>>, RevWordAcc, RevResAcc) -> - lists:reverse([lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<<$., Rest/binary>>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [], [lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [C | RevWordAcc], RevResAcc). - diff --git a/src/rabbit_framing.erl b/src/rabbit_framing.erl deleted file mode 100644 index da1a6a49..00000000 --- a/src/rabbit_framing.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% TODO auto-generate - --module(rabbit_framing). - --ifdef(use_specs). - --export_type([protocol/0, - amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(protocol() :: 'rabbit_framing_amqp_0_8' | 'rabbit_framing_amqp_0_9_1'). - --define(protocol_type(T), type(T :: rabbit_framing_amqp_0_8:T | - rabbit_framing_amqp_0_9_1:T)). - --?protocol_type(amqp_field_type()). --?protocol_type(amqp_property_type()). --?protocol_type(amqp_table()). --?protocol_type(amqp_array()). --?protocol_type(amqp_value()). --?protocol_type(amqp_method_name()). --?protocol_type(amqp_method()). --?protocol_type(amqp_method_record()). --?protocol_type(amqp_method_field_name()). --?protocol_type(amqp_property_record()). --?protocol_type(amqp_exception()). --?protocol_type(amqp_exception_code()). --?protocol_type(amqp_class_id()). - --endif. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl deleted file mode 100644 index 234bc55b..00000000 --- a/src/rabbit_guid.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_guid). - --behaviour(gen_server). - --export([start_link/0]). --export([guid/0, string_guid/1, binstring_guid/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_serial"). - --record(state, {serial}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([guid/0]). - --type(guid() :: binary()). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(guid/0 :: () -> guid()). --spec(string_guid/1 :: (any()) -> string()). --spec(binstring_guid/1 :: (any()) -> binary()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(rabbit_mnesia:dir(), ?SERIAL_FILENAME), - Serial = case rabbit_misc:read_term_file(Filename) of - {ok, [Num]} -> Num; - {error, enoent} -> 0; - {error, Reason} -> - throw({error, {cannot_read_serial_file, Filename, Reason}}) - end, - case rabbit_misc:write_term_file(Filename, [Serial + 1]) of - ok -> ok; - {error, Reason1} -> - throw({error, {cannot_write_serial_file, Filename, Reason1}}) - end, - Serial. - -%% generate a GUID. -%% -%% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. -guid() -> - %% We don't use erlang:now() here because a) it may return - %% duplicates when the system clock has been rewound prior to a - %% restart, or ids were generated at a high rate (which causes - %% now() to move ahead of the system time), and b) it is really - %% slow since it takes a global lock and makes a system call. - %% - %% A persisted serial number, in combination with self/0 (which - %% includes the node name) uniquely identifies a process in space - %% and time. We combine that with a process-local counter to give - %% us a GUID. - G = case get(guid) of - undefined -> {{gen_server:call(?SERVER, serial, infinity), self()}, - 0}; - {S, I} -> {S, I+1} - end, - put(guid, G), - erlang:md5(term_to_binary(G)). - -%% generate a readable string representation of a GUID. -string_guid(Prefix) -> - Prefix ++ "-" ++ base64:encode_to_string(guid()). - -binstring_guid(Prefix) -> - list_to_binary(string_guid(Prefix)). - -%%---------------------------------------------------------------------------- - -init([Serial]) -> - {ok, #state{serial = Serial}}. - -handle_call(serial, _From, State = #state{serial = Serial}) -> - {reply, Serial, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_heartbeat.erl b/src/rabbit_heartbeat.erl deleted file mode 100644 index 177ae868..00000000 --- a/src/rabbit_heartbeat.erl +++ /dev/null @@ -1,149 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_heartbeat). - --export([start_heartbeat_sender/3, start_heartbeat_receiver/3, - start_heartbeat_fun/1, pause_monitor/1, resume_monitor/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([heartbeaters/0]). --export_type([start_heartbeat_fun/0]). - --type(heartbeaters() :: {rabbit_types:maybe(pid()), rabbit_types:maybe(pid())}). - --type(heartbeat_callback() :: fun (() -> any())). - --type(start_heartbeat_fun() :: - fun((rabbit_net:socket(), non_neg_integer(), heartbeat_callback(), - non_neg_integer(), heartbeat_callback()) -> - no_return())). - --spec(start_heartbeat_sender/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). --spec(start_heartbeat_receiver/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). - --spec(start_heartbeat_fun/1 :: - (pid()) -> start_heartbeat_fun()). - - --spec(pause_monitor/1 :: (heartbeaters()) -> 'ok'). --spec(resume_monitor/1 :: (heartbeaters()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_heartbeat_sender(Sock, TimeoutSec, SendFun) -> - %% the 'div 2' is there so that we don't end up waiting for nearly - %% 2 * TimeoutSec before sending a heartbeat in the boundary case - %% where the last message was sent just after a heartbeat. - heartbeater( - {Sock, TimeoutSec * 1000 div 2, send_oct, 0, - fun () -> - SendFun(), - continue - end}). - -start_heartbeat_receiver(Sock, TimeoutSec, ReceiveFun) -> - %% we check for incoming data every interval, and time out after - %% two checks with no change. As a result we will time out between - %% 2 and 3 intervals after the last data has been received. - heartbeater({Sock, TimeoutSec * 1000, recv_oct, 1, fun () -> - ReceiveFun(), - stop - end}). - -start_heartbeat_fun(SupPid) -> - fun (Sock, SendTimeoutSec, SendFun, ReceiveTimeoutSec, ReceiveFun) -> - {ok, Sender} = - start_heartbeater(SendTimeoutSec, SupPid, Sock, - SendFun, heartbeat_sender, - start_heartbeat_sender), - {ok, Receiver} = - start_heartbeater(ReceiveTimeoutSec, SupPid, Sock, - ReceiveFun, heartbeat_receiver, - start_heartbeat_receiver), - {Sender, Receiver} - end. - -pause_monitor({_Sender, none}) -> - ok; -pause_monitor({_Sender, Receiver}) -> - Receiver ! pause, - ok. - -resume_monitor({_Sender, none}) -> - ok; -resume_monitor({_Sender, Receiver}) -> - Receiver ! resume, - ok. - -%%---------------------------------------------------------------------------- -start_heartbeater(0, _SupPid, _Sock, _TimeoutFun, _Name, _Callback) -> - {ok, none}; -start_heartbeater(TimeoutSec, SupPid, Sock, TimeoutFun, Name, Callback) -> - supervisor2:start_child( - SupPid, {Name, - {rabbit_heartbeat, Callback, - [Sock, TimeoutSec, TimeoutFun]}, - transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}). - -heartbeater(Params) -> - {ok, proc_lib:spawn_link(fun () -> heartbeater(Params, {0, 0}) end)}. - -heartbeater({Sock, TimeoutMillisec, StatName, Threshold, Handler} = Params, - {StatVal, SameCount}) -> - Recurse = fun (V) -> heartbeater(Params, V) end, - receive - pause -> - receive - resume -> - Recurse({0, 0}); - Other -> - exit({unexpected_message, Other}) - end; - Other -> - exit({unexpected_message, Other}) - after TimeoutMillisec -> - case rabbit_net:getstat(Sock, [StatName]) of - {ok, [{StatName, NewStatVal}]} -> - if NewStatVal =/= StatVal -> - Recurse({NewStatVal, 0}); - SameCount < Threshold -> - Recurse({NewStatVal, SameCount + 1}); - true -> - case Handler() of - stop -> ok; - continue -> Recurse({NewStatVal, 0}) - end - end; - {error, einval} -> - %% the socket is dead, most likely because the - %% connection is being shut down -> terminate - ok; - {error, Reason} -> - exit({cannot_get_socket_stats, Reason}) - end - end. diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl deleted file mode 100644 index 1b72dd76..00000000 --- a/src/rabbit_limiter.erl +++ /dev/null @@ -1,234 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_limiter). - --behaviour(gen_server2). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, prioritise_call/3]). --export([start_link/2]). --export([limit/2, can_send/3, ack/2, register/2, unregister/2]). --export([get_limit/1, block/1, unblock/1, is_blocked/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(maybe_pid() :: pid() | 'undefined'). - --spec(start_link/2 :: (pid(), non_neg_integer()) -> - rabbit_types:ok_pid_or_error()). --spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok' | 'stopped'). --spec(can_send/3 :: (maybe_pid(), pid(), boolean()) -> boolean()). --spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(get_limit/1 :: (maybe_pid()) -> non_neg_integer()). --spec(block/1 :: (maybe_pid()) -> 'ok'). --spec(unblock/1 :: (maybe_pid()) -> 'ok' | 'stopped'). --spec(is_blocked/1 :: (maybe_pid()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = dict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - -%%---------------------------------------------------------------------------- -%% API -%%---------------------------------------------------------------------------- - -start_link(ChPid, UnackedMsgCount) -> - gen_server2:start_link(?MODULE, [ChPid, UnackedMsgCount], []). - -limit(undefined, 0) -> - ok; -limit(LimiterPid, PrefetchCount) -> - gen_server2:call(LimiterPid, {limit, PrefetchCount}, infinity). - -%% Ask the limiter whether the queue can deliver a message without -%% breaching a limit -can_send(undefined, _QPid, _AckRequired) -> - true; -can_send(LimiterPid, QPid, AckRequired) -> - rabbit_misc:with_exit_handler( - fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, - infinity) end). - -%% Let the limiter know that the channel has received some acks from a -%% consumer -ack(undefined, _Count) -> ok; -ack(LimiterPid, Count) -> gen_server2:cast(LimiterPid, {ack, Count}). - -register(undefined, _QPid) -> ok; -register(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {register, QPid}). - -unregister(undefined, _QPid) -> ok; -unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}). - -get_limit(undefined) -> - 0; -get_limit(Pid) -> - rabbit_misc:with_exit_handler( - fun () -> 0 end, - fun () -> gen_server2:call(Pid, get_limit, infinity) end). - -block(undefined) -> - ok; -block(LimiterPid) -> - gen_server2:call(LimiterPid, block, infinity). - -unblock(undefined) -> - ok; -unblock(LimiterPid) -> - gen_server2:call(LimiterPid, unblock, infinity). - -is_blocked(undefined) -> - false; -is_blocked(LimiterPid) -> - gen_server2:call(LimiterPid, is_blocked, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([ChPid, UnackedMsgCount]) -> - {ok, #lim{ch_pid = ChPid, volume = UnackedMsgCount}}. - -prioritise_call(get_limit, _From, _State) -> 9; -prioritise_call(_Msg, _From, _State) -> 0. - -handle_call({can_send, _QPid, _AckRequired}, _From, - State = #lim{blocked = true}) -> - {reply, false, State}; -handle_call({can_send, QPid, AckRequired}, _From, - State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} - end; - -handle_call(get_limit, _From, State = #lim{prefetch_count = PrefetchCount}) -> - {reply, PrefetchCount, State}; - -handle_call({limit, PrefetchCount}, _From, State) -> - case maybe_notify(State, State#lim{prefetch_count = PrefetchCount}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(block, _From, State) -> - {reply, ok, State#lim{blocked = true}}; - -handle_call(unblock, _From, State) -> - case maybe_notify(State, State#lim{blocked = false}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(is_blocked, _From, State) -> - {reply, blocked(State), State}. - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {cont, State1} = maybe_notify(State, State#lim{volume = NewVolume}), - {noreply, State1}; - -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; - -handle_cast({unregister, QPid}, State) -> - {noreply, forget_queue(QPid, State)}. - -handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> - {noreply, forget_queue(QPid, State)}. - -terminate(_, _) -> - ok. - -code_change(_, State, _) -> - State. - -%%---------------------------------------------------------------------------- -%% Internal plumbing -%%---------------------------------------------------------------------------- - -maybe_notify(OldState, NewState) -> - case (limit_reached(OldState) orelse blocked(OldState)) andalso - not (limit_reached(NewState) orelse blocked(NewState)) of - true -> NewState1 = notify_queues(NewState), - {case NewState1#lim.prefetch_count of - 0 -> stop; - _ -> cont - end, NewState1}; - false -> {cont, NewState} - end. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -blocked(#lim{blocked = Blocked}) -> Blocked. - -remember_queue(QPid, State = #lim{queues = Queues}) -> - case dict:is_key(QPid, Queues) of - false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = dict:store(QPid, {MRef, false}, Queues)}; - true -> State - end. - -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> - case dict:find(QPid, Queues) of - {ok, {MRef, _}} -> - true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), - State#lim{queues = dict:erase(QPid, Queues)}; - error -> State - end. - -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, - State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. - -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - dict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], dict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, - State#lim{queues = NewQueues}. diff --git a/src/rabbit_log.erl b/src/rabbit_log.erl deleted file mode 100644 index 8207d6bc..00000000 --- a/src/rabbit_log.erl +++ /dev/null @@ -1,132 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_log). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([debug/1, debug/2, message/4, info/1, info/2, - warning/1, warning/2, error/1, error/2]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(debug/1 :: (string()) -> 'ok'). --spec(debug/2 :: (string(), [any()]) -> 'ok'). --spec(info/1 :: (string()) -> 'ok'). --spec(info/2 :: (string(), [any()]) -> 'ok'). --spec(warning/1 :: (string()) -> 'ok'). --spec(warning/2 :: (string(), [any()]) -> 'ok'). --spec(error/1 :: (string()) -> 'ok'). --spec(error/2 :: (string(), [any()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -debug(Fmt) -> - gen_server:cast(?SERVER, {debug, Fmt}). - -debug(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {debug, Fmt, Args}). - -message(Direction, Channel, MethodRecord, Content) -> - gen_server:cast(?SERVER, - {message, Direction, Channel, MethodRecord, Content}). - -info(Fmt) -> - gen_server:cast(?SERVER, {info, Fmt}). - -info(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {info, Fmt, Args}). - -warning(Fmt) -> - gen_server:cast(?SERVER, {warning, Fmt}). - -warning(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {warning, Fmt, Args}). - -error(Fmt) -> - gen_server:cast(?SERVER, {error, Fmt}). - -error(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {error, Fmt, Args}). - -%%-------------------------------------------------------------------- - -init([]) -> {ok, none}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({debug, Fmt}, State) -> - io:format("debug:: "), io:format(Fmt), - error_logger:info_msg("debug:: " ++ Fmt), - {noreply, State}; -handle_cast({debug, Fmt, Args}, State) -> - io:format("debug:: "), io:format(Fmt, Args), - error_logger:info_msg("debug:: " ++ Fmt, Args), - {noreply, State}; -handle_cast({message, Direction, Channel, MethodRecord, Content}, State) -> - io:format("~s ch~p ~p~n", - [case Direction of - in -> "-->"; - out -> "<--" end, - Channel, - {MethodRecord, Content}]), - {noreply, State}; -handle_cast({info, Fmt}, State) -> - error_logger:info_msg(Fmt), - {noreply, State}; -handle_cast({info, Fmt, Args}, State) -> - error_logger:info_msg(Fmt, Args), - {noreply, State}; -handle_cast({warning, Fmt}, State) -> - error_logger:warning_msg(Fmt), - {noreply, State}; -handle_cast({warning, Fmt, Args}, State) -> - error_logger:warning_msg(Fmt, Args), - {noreply, State}; -handle_cast({error, Fmt}, State) -> - error_logger:error_msg(Fmt), - {noreply, State}; -handle_cast({error, Fmt, Args}, State) -> - error_logger:error_msg(Fmt, Args), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl deleted file mode 100644 index 996b0a98..00000000 --- a/src/rabbit_memory_monitor.erl +++ /dev/null @@ -1,280 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - -%% This module handles the node-wide memory statistics. -%% It receives statistics from all queues, counts the desired -%% queue length (in seconds), and sends this information back to -%% queues. - --module(rabbit_memory_monitor). - --behaviour(gen_server2). - --export([start_link/0, update/0, register/2, deregister/1, - report_ram_duration/2, stop/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(process, {pid, reported, sent, callback, monitor}). - --record(state, {timer, %% 'internal_update' timer - queue_durations, %% ets #process - queue_duration_sum, %% sum of all queue_durations - queue_duration_count, %% number of elements in sum - memory_limit, %% how much memory we intend to use - desired_duration %% the desired queue duration - }). - --define(SERVER, ?MODULE). --define(DEFAULT_UPDATE_INTERVAL, 2500). --define(TABLE_NAME, ?MODULE). - -%% Because we have a feedback loop here, we need to ensure that we -%% have some space for when the queues don't quite respond as fast as -%% we would like, or when there is buffering going on in other parts -%% of the system. In short, we aim to stay some distance away from -%% when the memory alarms will go off, which cause backpressure (of -%% some sort) on producers. Note that all other Thresholds are -%% relative to this scaling. --define(MEMORY_LIMIT_SCALING, 0.4). - --define(LIMIT_THRESHOLD, 0.5). %% don't limit queues when mem use is < this - -%% If all queues are pushed to disk (duration 0), then the sum of -%% their reported lengths will be 0. If memory then becomes available, -%% unless we manually intervene, the sum will remain 0, and the queues -%% will never get a non-zero duration. Thus when the mem use is < -%% SUM_INC_THRESHOLD, increase the sum artificially by SUM_INC_AMOUNT. --define(SUM_INC_THRESHOLD, 0.95). --define(SUM_INC_AMOUNT, 1.0). - -%% If user disabled vm_memory_monitor, let's assume 1GB of memory we can use. --define(MEMORY_SIZE_FOR_DISABLED_VMM, 1073741824). - --define(EPSILON, 0.000001). %% less than this and we clamp to 0 - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(update/0 :: () -> 'ok'). --spec(register/2 :: (pid(), {atom(),atom(),[any()]}) -> 'ok'). --spec(deregister/1 :: (pid()) -> 'ok'). --spec(report_ram_duration/2 :: - (pid(), float() | 'infinity') -> number() | 'infinity'). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -update() -> - gen_server2:cast(?SERVER, update). - -register(Pid, MFA = {_M, _F, _A}) -> - gen_server2:call(?SERVER, {register, Pid, MFA}, infinity). - -deregister(Pid) -> - gen_server2:cast(?SERVER, {deregister, Pid}). - -report_ram_duration(Pid, QueueDuration) -> - gen_server2:call(?SERVER, - {report_ram_duration, Pid, QueueDuration}, infinity). - -stop() -> - gen_server2:cast(?SERVER, stop). - -%%---------------------------------------------------------------------------- -%% Gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - MemoryLimit = trunc(?MEMORY_LIMIT_SCALING * - (try - vm_memory_monitor:get_memory_limit() - catch - exit:{noproc, _} -> ?MEMORY_SIZE_FOR_DISABLED_VMM - end)), - - {ok, TRef} = timer:apply_interval(?DEFAULT_UPDATE_INTERVAL, - ?SERVER, update, []), - - Ets = ets:new(?TABLE_NAME, [set, private, {keypos, #process.pid}]), - - {ok, internal_update( - #state { timer = TRef, - queue_durations = Ets, - queue_duration_sum = 0.0, - queue_duration_count = 0, - memory_limit = MemoryLimit, - desired_duration = infinity })}. - -handle_call({report_ram_duration, Pid, QueueDuration}, From, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations, - desired_duration = SendDuration }) -> - - [Proc = #process { reported = PrevQueueDuration }] = - ets:lookup(Durations, Pid), - - gen_server2:reply(From, SendDuration), - - {Sum1, Count1} = - case {PrevQueueDuration, QueueDuration} of - {infinity, infinity} -> {Sum, Count}; - {infinity, _} -> {Sum + QueueDuration, Count + 1}; - {_, infinity} -> {Sum - PrevQueueDuration, Count - 1}; - {_, _} -> {Sum - PrevQueueDuration + QueueDuration, - Count} - end, - true = ets:insert(Durations, Proc #process { reported = QueueDuration, - sent = SendDuration }), - {noreply, State #state { queue_duration_sum = zero_clamp(Sum1), - queue_duration_count = Count1 }}; - -handle_call({register, Pid, MFA}, _From, - State = #state { queue_durations = Durations }) -> - MRef = erlang:monitor(process, Pid), - true = ets:insert(Durations, #process { pid = Pid, reported = infinity, - sent = infinity, callback = MFA, - monitor = MRef }), - {reply, ok, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast({deregister, Pid}, State) -> - {noreply, internal_deregister(Pid, true, State)}; - -handle_cast(stop, State) -> - {stop, normal, State}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, State) -> - {noreply, internal_deregister(Pid, false, State)}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state { timer = TRef }) -> - timer:cancel(TRef), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -zero_clamp(Sum) -> - case Sum < ?EPSILON of - true -> 0.0; - false -> Sum - end. - -internal_deregister(Pid, Demonitor, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations }) -> - case ets:lookup(Durations, Pid) of - [] -> State; - [#process { reported = PrevQueueDuration, monitor = MRef }] -> - true = case Demonitor of - true -> erlang:demonitor(MRef); - false -> true - end, - {Sum1, Count1} = - case PrevQueueDuration of - infinity -> {Sum, Count}; - _ -> {zero_clamp(Sum - PrevQueueDuration), - Count - 1} - end, - true = ets:delete(Durations, Pid), - State #state { queue_duration_sum = Sum1, - queue_duration_count = Count1 } - end. - -internal_update(State = #state { memory_limit = Limit, - queue_durations = Durations, - desired_duration = DesiredDurationAvg, - queue_duration_sum = Sum, - queue_duration_count = Count }) -> - MemoryRatio = erlang:memory(total) / Limit, - DesiredDurationAvg1 = - case MemoryRatio < ?LIMIT_THRESHOLD orelse Count == 0 of - true -> - infinity; - false -> - Sum1 = case MemoryRatio < ?SUM_INC_THRESHOLD of - true -> Sum + ?SUM_INC_AMOUNT; - false -> Sum - end, - (Sum1 / Count) / MemoryRatio - end, - State1 = State #state { desired_duration = DesiredDurationAvg1 }, - - %% only inform queues immediately if the desired duration has - %% decreased - case DesiredDurationAvg1 == infinity orelse - (DesiredDurationAvg /= infinity andalso - DesiredDurationAvg1 >= DesiredDurationAvg) of - true -> - ok; - false -> - true = - ets:foldl( - fun (Proc = #process { reported = QueueDuration, - sent = PrevSendDuration, - callback = {M, F, A} }, true) -> - case (case {QueueDuration, PrevSendDuration} of - {infinity, infinity} -> - true; - {infinity, D} -> - DesiredDurationAvg1 < D; - {D, infinity} -> - DesiredDurationAvg1 < D; - {D1, D2} -> - DesiredDurationAvg1 < - lists:min([D1,D2]) - end) of - true -> - ok = erlang:apply( - M, F, A ++ [DesiredDurationAvg1]), - ets:insert( - Durations, - Proc #process {sent = DesiredDurationAvg1}); - false -> - true - end - end, true, Durations) - end, - State1. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl deleted file mode 100644 index e79a58a1..00000000 --- a/src/rabbit_misc.erl +++ /dev/null @@ -1,874 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_misc). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --include_lib("kernel/include/file.hrl"). - --export([method_record_type/1, polite_pause/0, polite_pause/1]). --export([die/1, frame_error/2, amqp_error/4, - protocol_error/3, protocol_error/4, protocol_error/1]). --export([not_found/1, assert_args_equivalence/4]). --export([dirty_read/1]). --export([table_lookup/2]). --export([r/3, r/2, r_arg/4, rs/1]). --export([enable_cover/0, report_cover/0]). --export([enable_cover/1, report_cover/1]). --export([start_cover/1]). --export([throw_on_error/2, with_exit_handler/2, filter_exit_map/2]). --export([with_user/2, with_user_and_vhost/3]). --export([execute_mnesia_transaction/1]). --export([execute_mnesia_transaction/2]). --export([execute_mnesia_tx_with_tail/1]). --export([ensure_ok/2]). --export([makenode/1, nodeparts/1, cookie_hash/0, tcp_name/3]). --export([upmap/2, map_in_order/2]). --export([table_fold/3]). --export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). --export([read_term_file/1, write_term_file/2]). --export([append_file/2, ensure_parent_dirs_exist/1]). --export([format_stderr/2]). --export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, queue_fold/3]). --export([sort_field_table/1]). --export([pid_to_string/1, string_to_pid/1]). --export([version_compare/2, version_compare/3]). --export([recursive_delete/1, recursive_copy/2, dict_cons/3, orddict_cons/3, - unlink_and_capture_exit/1]). --export([get_options/2]). --export([all_module_attributes/1, build_acyclic_graph/3]). --export([now_ms/0]). --export([lock_file/1]). --export([const_ok/1, const/1]). --export([ntoa/1, ntoab/1]). --export([is_process_alive/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([resource_name/0, thunk/1, const/1]). - --type(ok_or_error() :: rabbit_types:ok_or_error(any())). --type(thunk(T) :: fun(() -> T)). --type(const(T) :: fun((any()) -> T)). --type(resource_name() :: binary()). --type(optdef() :: {flag, string()} | {option, string(), any()}). --type(channel_or_connection_exit() - :: rabbit_types:channel_exit() | rabbit_types:connection_exit()). --type(digraph_label() :: term()). --type(graph_vertex_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph_label()}])). --type(graph_edge_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph:vertex()}])). - --spec(method_record_type/1 :: (rabbit_framing:amqp_method_record()) - -> rabbit_framing:amqp_method_name()). --spec(polite_pause/0 :: () -> 'done'). --spec(polite_pause/1 :: (non_neg_integer()) -> 'done'). --spec(die/1 :: - (rabbit_framing:amqp_exception()) -> channel_or_connection_exit()). --spec(frame_error/2 :: (rabbit_framing:amqp_method_name(), binary()) - -> rabbit_types:connection_exit()). --spec(amqp_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) - -> rabbit_types:amqp_error()). --spec(protocol_error/3 :: (rabbit_framing:amqp_exception(), string(), [any()]) - -> channel_or_connection_exit()). --spec(protocol_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) -> channel_or_connection_exit()). --spec(protocol_error/1 :: - (rabbit_types:amqp_error()) -> channel_or_connection_exit()). --spec(not_found/1 :: (rabbit_types:r(atom())) -> rabbit_types:channel_exit()). --spec(assert_args_equivalence/4 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table(), - rabbit_types:r(any()), [binary()]) -> - 'ok' | rabbit_types:connection_exit()). --spec(dirty_read/1 :: - ({atom(), any()}) -> rabbit_types:ok_or_error2(any(), 'not_found')). --spec(table_lookup/2 :: - (rabbit_framing:amqp_table(), binary()) - -> 'undefined' | {rabbit_framing:amqp_field_type(), any()}). --spec(r/2 :: (rabbit_types:vhost(), K) - -> rabbit_types:r3(rabbit_types:vhost(), K, '_') - when is_subtype(K, atom())). --spec(r/3 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, resource_name()) - -> rabbit_types:r3(rabbit_types:vhost(), K, resource_name()) - when is_subtype(K, atom())). --spec(r_arg/4 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, - rabbit_framing:amqp_table(), binary()) - -> undefined | rabbit_types:r(K) - when is_subtype(K, atom())). --spec(rs/1 :: (rabbit_types:r(atom())) -> string()). --spec(enable_cover/0 :: () -> ok_or_error()). --spec(start_cover/1 :: ([{string(), string()} | string()]) -> 'ok'). --spec(report_cover/0 :: () -> 'ok'). --spec(enable_cover/1 :: ([file:filename() | atom()]) -> ok_or_error()). --spec(report_cover/1 :: ([file:filename() | atom()]) -> 'ok'). --spec(throw_on_error/2 :: - (atom(), thunk(rabbit_types:error(any()) | {ok, A} | A)) -> A). --spec(with_exit_handler/2 :: (thunk(A), thunk(A)) -> A). --spec(filter_exit_map/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(with_user/2 :: (rabbit_types:username(), thunk(A)) -> A). --spec(with_user_and_vhost/3 :: - (rabbit_types:username(), rabbit_types:vhost(), thunk(A)) - -> A). --spec(execute_mnesia_transaction/1 :: (thunk(A)) -> A). --spec(execute_mnesia_transaction/2 :: - (thunk(A), fun ((A, boolean()) -> B)) -> B). --spec(execute_mnesia_tx_with_tail/1 :: - (thunk(fun ((boolean()) -> B))) -> B | (fun ((boolean()) -> B))). --spec(ensure_ok/2 :: (ok_or_error(), atom()) -> 'ok'). --spec(makenode/1 :: ({string(), string()} | string()) -> node()). --spec(nodeparts/1 :: (node() | string()) -> {string(), string()}). --spec(cookie_hash/0 :: () -> string()). --spec(tcp_name/3 :: - (atom(), inet:ip_address(), rabbit_networking:ip_port()) - -> atom()). --spec(upmap/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(map_in_order/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(table_fold/3 :: (fun ((any(), A) -> A), A, atom()) -> A). --spec(dirty_read_all/1 :: (atom()) -> [any()]). --spec(dirty_foreach_key/2 :: (fun ((any()) -> any()), atom()) - -> 'ok' | 'aborted'). --spec(dirty_dump_log/1 :: (file:filename()) -> ok_or_error()). --spec(read_term_file/1 :: - (file:filename()) -> {'ok', [any()]} | rabbit_types:error(any())). --spec(write_term_file/2 :: (file:filename(), [any()]) -> ok_or_error()). --spec(append_file/2 :: (file:filename(), string()) -> ok_or_error()). --spec(ensure_parent_dirs_exist/1 :: (string()) -> 'ok'). --spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). --spec(start_applications/1 :: ([atom()]) -> 'ok'). --spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> integer()). --spec(queue_fold/3 :: (fun ((any(), B) -> B), B, queue()) -> B). --spec(sort_field_table/1 :: - (rabbit_framing:amqp_table()) -> rabbit_framing:amqp_table()). --spec(pid_to_string/1 :: (pid()) -> string()). --spec(string_to_pid/1 :: (string()) -> pid()). --spec(version_compare/2 :: (string(), string()) -> 'lt' | 'eq' | 'gt'). --spec(version_compare/3 :: - (string(), string(), ('lt' | 'lte' | 'eq' | 'gte' | 'gt')) - -> boolean()). --spec(recursive_delete/1 :: - ([file:filename()]) - -> rabbit_types:ok_or_error({file:filename(), any()})). --spec(recursive_copy/2 :: - (file:filename(), file:filename()) - -> rabbit_types:ok_or_error({file:filename(), file:filename(), any()})). --spec(dict_cons/3 :: (any(), any(), dict()) -> dict()). --spec(orddict_cons/3 :: (any(), any(), orddict:orddict()) -> orddict:orddict()). --spec(unlink_and_capture_exit/1 :: (pid()) -> 'ok'). --spec(get_options/2 :: ([optdef()], [string()]) - -> {[string()], [{string(), any()}]}). --spec(all_module_attributes/1 :: (atom()) -> [{atom(), [term()]}]). --spec(build_acyclic_graph/3 :: - (graph_vertex_fun(), graph_edge_fun(), [{atom(), [term()]}]) - -> rabbit_types:ok_or_error2(digraph(), - {'vertex', 'duplicate', digraph:vertex()} | - {'edge', ({bad_vertex, digraph:vertex()} | - {bad_edge, [digraph:vertex()]}), - digraph:vertex(), digraph:vertex()})). --spec(now_ms/0 :: () -> non_neg_integer()). --spec(lock_file/1 :: (file:filename()) -> rabbit_types:ok_or_error('eexist')). --spec(const_ok/1 :: (any()) -> 'ok'). --spec(const/1 :: (A) -> const(A)). --spec(ntoa/1 :: (inet:ip_address()) -> string()). --spec(ntoab/1 :: (inet:ip_address()) -> string()). --spec(is_process_alive/1 :: (pid()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - -method_record_type(Record) -> - element(1, Record). - -polite_pause() -> - polite_pause(3000). - -polite_pause(N) -> - receive - after N -> done - end. - -die(Error) -> - protocol_error(Error, "~w", [Error]). - -frame_error(MethodName, BinaryFields) -> - protocol_error(frame_error, "cannot decode ~w", [BinaryFields], MethodName). - -amqp_error(Name, ExplanationFormat, Params, Method) -> - Explanation = lists:flatten(io_lib:format(ExplanationFormat, Params)), - #amqp_error{name = Name, explanation = Explanation, method = Method}. - -protocol_error(Name, ExplanationFormat, Params) -> - protocol_error(Name, ExplanationFormat, Params, none). - -protocol_error(Name, ExplanationFormat, Params, Method) -> - protocol_error(amqp_error(Name, ExplanationFormat, Params, Method)). - -protocol_error(#amqp_error{} = Error) -> - exit(Error). - -not_found(R) -> protocol_error(not_found, "no ~s", [rs(R)]). - -assert_args_equivalence(Orig, New, Name, Keys) -> - [assert_args_equivalence1(Orig, New, Name, Key) || Key <- Keys], - ok. - -assert_args_equivalence1(Orig, New, Name, Key) -> - case {table_lookup(Orig, Key), table_lookup(New, Key)} of - {Same, Same} -> ok; - {Orig1, New1} -> protocol_error( - precondition_failed, - "inequivalent arg '~s' for ~s: " - "received ~s but current is ~s", - [Key, rs(Name), val(New1), val(Orig1)]) - end. - -val(undefined) -> - "none"; -val({Type, Value}) -> - Fmt = case is_binary(Value) of - true -> "the value '~s' of type '~s'"; - false -> "the value '~w' of type '~s'" - end, - lists:flatten(io_lib:format(Fmt, [Value, Type])). - -dirty_read(ReadSpec) -> - case mnesia:dirty_read(ReadSpec) of - [Result] -> {ok, Result}; - [] -> {error, not_found} - end. - -table_lookup(Table, Key) -> - case lists:keysearch(Key, 1, Table) of - {value, {_, TypeBin, ValueBin}} -> {TypeBin, ValueBin}; - false -> undefined - end. - -r(#resource{virtual_host = VHostPath}, Kind, Name) - when is_binary(Name) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}; -r(VHostPath, Kind, Name) when is_binary(Name) andalso is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}. - -r(VHostPath, Kind) when is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = '_'}. - -r_arg(#resource{virtual_host = VHostPath}, Kind, Table, Key) -> - r_arg(VHostPath, Kind, Table, Key); -r_arg(VHostPath, Kind, Table, Key) -> - case table_lookup(Table, Key) of - {longstr, NameBin} -> r(VHostPath, Kind, NameBin); - undefined -> undefined - end. - -rs(#resource{virtual_host = VHostPath, kind = Kind, name = Name}) -> - lists:flatten(io_lib:format("~s '~s' in vhost '~s'", - [Kind, Name, VHostPath])). - -enable_cover() -> enable_cover(["."]). - -enable_cover(Dirs) -> - lists:foldl(fun (Dir, ok) -> - case cover:compile_beam_directory( - filename:join(lists:concat([Dir]),"ebin")) of - {error, _} = Err -> Err; - _ -> ok - end; - (_Dir, Err) -> - Err - end, ok, Dirs). - -start_cover(NodesS) -> - {ok, _} = cover:start([makenode(N) || N <- NodesS]), - ok. - -report_cover() -> report_cover(["."]). - -report_cover(Dirs) -> [report_cover1(lists:concat([Dir])) || Dir <- Dirs], ok. - -report_cover1(Root) -> - Dir = filename:join(Root, "cover"), - ok = filelib:ensure_dir(filename:join(Dir, "junk")), - lists:foreach(fun (F) -> file:delete(F) end, - filelib:wildcard(filename:join(Dir, "*.html"))), - {ok, SummaryFile} = file:open(filename:join(Dir, "summary.txt"), [write]), - {CT, NCT} = - lists:foldl( - fun (M,{CovTot, NotCovTot}) -> - {ok, {M, {Cov, NotCov}}} = cover:analyze(M, module), - ok = report_coverage_percentage(SummaryFile, - Cov, NotCov, M), - {ok,_} = cover:analyze_to_file( - M, - filename:join(Dir, atom_to_list(M) ++ ".html"), - [html]), - {CovTot+Cov, NotCovTot+NotCov} - end, - {0, 0}, - lists:sort(cover:modules())), - ok = report_coverage_percentage(SummaryFile, CT, NCT, 'TOTAL'), - ok = file:close(SummaryFile), - ok. - -report_coverage_percentage(File, Cov, NotCov, Mod) -> - io:fwrite(File, "~6.2f ~p~n", - [if - Cov+NotCov > 0 -> 100.0*Cov/(Cov+NotCov); - true -> 100.0 - end, - Mod]). - -throw_on_error(E, Thunk) -> - case Thunk() of - {error, Reason} -> throw({E, Reason}); - {ok, Res} -> Res; - Res -> Res - end. - -with_exit_handler(Handler, Thunk) -> - try - Thunk() - catch - exit:{R, _} when R =:= noproc; R =:= nodedown; - R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - Handler() - end. - -filter_exit_map(F, L) -> - Ref = make_ref(), - lists:filter(fun (R) -> R =/= Ref end, - [with_exit_handler( - fun () -> Ref end, - fun () -> F(I) end) || I <- L]). - -with_user(Username, Thunk) -> - fun () -> - case mnesia:read({rabbit_user, Username}) of - [] -> - mnesia:abort({no_such_user, Username}); - [_U] -> - Thunk() - end - end. - -with_user_and_vhost(Username, VHostPath, Thunk) -> - with_user(Username, rabbit_vhost:with(VHostPath, Thunk)). - -execute_mnesia_transaction(TxFun) -> - %% Making this a sync_transaction allows us to use dirty_read - %% elsewhere and get a consistent result even when that read - %% executes on a different node. - case worker_pool:submit({mnesia, sync_transaction, [TxFun]}) of - {atomic, Result} -> Result; - {aborted, Reason} -> throw({error, Reason}) - end. - - -%% Like execute_mnesia_transaction/1 with additional Pre- and Post- -%% commit function -execute_mnesia_transaction(TxFun, PrePostCommitFun) -> - case mnesia:is_transaction() of - true -> throw(unexpected_transaction); - false -> ok - end, - PrePostCommitFun(execute_mnesia_transaction( - fun () -> - Result = TxFun(), - PrePostCommitFun(Result, true), - Result - end), false). - -%% Like execute_mnesia_transaction/2, but TxFun is expected to return a -%% TailFun which gets called immediately before and after the tx commit -execute_mnesia_tx_with_tail(TxFun) -> - case mnesia:is_transaction() of - true -> execute_mnesia_transaction(TxFun); - false -> TailFun = execute_mnesia_transaction( - fun () -> - TailFun1 = TxFun(), - TailFun1(true), - TailFun1 - end), - TailFun(false) - end. - -ensure_ok(ok, _) -> ok; -ensure_ok({error, Reason}, ErrorTag) -> throw({error, {ErrorTag, Reason}}). - -makenode({Prefix, Suffix}) -> - list_to_atom(lists:append([Prefix, "@", Suffix])); -makenode(NodeStr) -> - makenode(nodeparts(NodeStr)). - -nodeparts(Node) when is_atom(Node) -> - nodeparts(atom_to_list(Node)); -nodeparts(NodeStr) -> - case lists:splitwith(fun (E) -> E =/= $@ end, NodeStr) of - {Prefix, []} -> {_, Suffix} = nodeparts(node()), - {Prefix, Suffix}; - {Prefix, Suffix} -> {Prefix, tl(Suffix)} - end. - -cookie_hash() -> - base64:encode_to_string(erlang:md5(atom_to_list(erlang:get_cookie()))). - -tcp_name(Prefix, IPAddress, Port) - when is_atom(Prefix) andalso is_number(Port) -> - list_to_atom( - lists:flatten( - io_lib:format("~w_~s:~w", - [Prefix, inet_parse:ntoa(IPAddress), Port]))). - -%% This is a modified version of Luke Gorrie's pmap - -%% http://lukego.livejournal.com/6753.html - that doesn't care about -%% the order in which results are received. -%% -%% WARNING: This is is deliberately lightweight rather than robust -- if F -%% throws, upmap will hang forever, so make sure F doesn't throw! -upmap(F, L) -> - Parent = self(), - Ref = make_ref(), - [receive {Ref, Result} -> Result end - || _ <- [spawn(fun () -> Parent ! {Ref, F(X)} end) || X <- L]]. - -map_in_order(F, L) -> - lists:reverse( - lists:foldl(fun (E, Acc) -> [F(E) | Acc] end, [], L)). - -%% Fold over each entry in a table, executing the cons function in a -%% transaction. This is often far more efficient than wrapping a tx -%% around the lot. -%% -%% We ignore entries that have been modified or removed. -table_fold(F, Acc0, TableName) -> - lists:foldl( - fun (E, Acc) -> execute_mnesia_transaction( - fun () -> case mnesia:match_object(TableName, E, read) of - [] -> Acc; - _ -> F(E, Acc) - end - end) - end, Acc0, dirty_read_all(TableName)). - -dirty_read_all(TableName) -> - mnesia:dirty_select(TableName, [{'$1',[],['$1']}]). - -dirty_foreach_key(F, TableName) -> - dirty_foreach_key1(F, TableName, mnesia:dirty_first(TableName)). - -dirty_foreach_key1(_F, _TableName, '$end_of_table') -> - ok; -dirty_foreach_key1(F, TableName, K) -> - case catch mnesia:dirty_next(TableName, K) of - {'EXIT', _} -> - aborted; - NextKey -> - F(K), - dirty_foreach_key1(F, TableName, NextKey) - end. - -dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, - {mode, read_only}, - {file, FileName}]), - dirty_dump_log1(LH, disk_log:chunk(LH, start)), - disk_log:close(LH). - -dirty_dump_log1(_LH, eof) -> - io:format("Done.~n"); -dirty_dump_log1(LH, {K, Terms}) -> - io:format("Chunk: ~p~n", [Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)); -dirty_dump_log1(LH, {K, Terms, BadBytes}) -> - io:format("Bad Chunk, ~p: ~p~n", [BadBytes, Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)). - - -read_term_file(File) -> file:consult(File). - -write_term_file(File, Terms) -> - file:write_file(File, list_to_binary([io_lib:format("~w.~n", [Term]) || - Term <- Terms])). - -append_file(File, Suffix) -> - case file:read_file_info(File) of - {ok, FInfo} -> append_file(File, FInfo#file_info.size, Suffix); - {error, enoent} -> append_file(File, 0, Suffix); - Error -> Error - end. - -append_file(_, _, "") -> - ok; -append_file(File, 0, Suffix) -> - case file:open([File, Suffix], [append]) of - {ok, Fd} -> file:close(Fd); - Error -> Error - end; -append_file(File, _, Suffix) -> - case file:read_file(File) of - {ok, Data} -> file:write_file([File, Suffix], Data, [append]); - Error -> Error - end. - -ensure_parent_dirs_exist(Filename) -> - case filelib:ensure_dir(Filename) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_parent_dirs, Filename, Reason}}) - end. - -format_stderr(Fmt, Args) -> - case os:type() of - {unix, _} -> - Port = open_port({fd, 0, 2}, [out]), - port_command(Port, io_lib:format(Fmt, Args)), - port_close(Port); - {win32, _} -> - %% stderr on Windows is buffered and I can't figure out a - %% way to trigger a fflush(stderr) in Erlang. So rather - %% than risk losing output we write to stdout instead, - %% which appears to be unbuffered. - io:format(Fmt, Args) - end, - ok. - -manage_applications(Iterate, Do, Undo, SkipError, ErrorTag, Apps) -> - Iterate(fun (App, Acc) -> - case Do(App) of - ok -> [App | Acc]; - {error, {SkipError, _}} -> Acc; - {error, Reason} -> - lists:foreach(Undo, Acc), - throw({error, {ErrorTag, App, Reason}}) - end - end, [], Apps), - ok. - -start_applications(Apps) -> - manage_applications(fun lists:foldl/3, - fun application:start/1, - fun application:stop/1, - already_started, - cannot_start_application, - Apps). - -stop_applications(Apps) -> - manage_applications(fun lists:foldr/3, - fun application:stop/1, - fun application:start/1, - not_started, - cannot_stop_application, - Apps). - -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N == T of - true -> T; - false -> 1 + T - end. - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -%% Sorts a list of AMQP table fields as per the AMQP spec -sort_field_table(Arguments) -> - lists:keysort(1, Arguments). - -%% This provides a string representation of a pid that is the same -%% regardless of what node we are running on. The representation also -%% permits easy identification of the pid's node. -pid_to_string(Pid) when is_pid(Pid) -> - %% see http://erlang.org/doc/apps/erts/erl_ext_dist.html (8.10 and - %% 8.7) - <<131,103,100,NodeLen:16,NodeBin:NodeLen/binary,Id:32,Ser:32,Cre:8>> - = term_to_binary(Pid), - Node = binary_to_term(<<131,100,NodeLen:16,NodeBin:NodeLen/binary>>), - lists:flatten(io_lib:format("<~w.~B.~B.~B>", [Node, Cre, Id, Ser])). - -%% inverse of above -string_to_pid(Str) -> - Err = {error, {invalid_pid_syntax, Str}}, - %% The \ before the trailing $ is only there to keep emacs - %% font-lock from getting confused. - case re:run(Str, "^<(.*)\\.(\\d+)\\.(\\d+)\\.(\\d+)>\$", - [{capture,all_but_first,list}]) of - {match, [NodeStr, CreStr, IdStr, SerStr]} -> - %% the NodeStr atom might be quoted, so we have to parse - %% it rather than doing a simple list_to_atom - NodeAtom = case erl_scan:string(NodeStr) of - {ok, [{atom, _, X}], _} -> X; - {error, _, _} -> throw(Err) - end, - <<131,NodeEnc/binary>> = term_to_binary(NodeAtom), - [Cre, Id, Ser] = lists:map(fun list_to_integer/1, - [CreStr, IdStr, SerStr]), - binary_to_term(<<131,103,NodeEnc/binary,Id:32,Ser:32,Cre:8>>); - nomatch -> - throw(Err) - end. - -version_compare(A, B, lte) -> - case version_compare(A, B) of - eq -> true; - lt -> true; - gt -> false - end; -version_compare(A, B, gte) -> - case version_compare(A, B) of - eq -> true; - gt -> true; - lt -> false - end; -version_compare(A, B, Result) -> - Result =:= version_compare(A, B). - -version_compare(A, A) -> - eq; -version_compare([], [$0 | B]) -> - version_compare([], dropdot(B)); -version_compare([], _) -> - lt; %% 2.3 < 2.3.1 -version_compare([$0 | A], []) -> - version_compare(dropdot(A), []); -version_compare(_, []) -> - gt; %% 2.3.1 > 2.3 -version_compare(A, B) -> - {AStr, ATl} = lists:splitwith(fun (X) -> X =/= $. end, A), - {BStr, BTl} = lists:splitwith(fun (X) -> X =/= $. end, B), - ANum = list_to_integer(AStr), - BNum = list_to_integer(BStr), - if ANum =:= BNum -> version_compare(dropdot(ATl), dropdot(BTl)); - ANum < BNum -> lt; - ANum > BNum -> gt - end. - -dropdot(A) -> lists:dropwhile(fun (X) -> X =:= $. end, A). - -recursive_delete(Files) -> - lists:foldl(fun (Path, ok ) -> recursive_delete1(Path); - (_Path, {error, _Err} = Error) -> Error - end, ok, Files). - -recursive_delete1(Path) -> - case filelib:is_dir(Path) of - false -> case file:delete(Path) of - ok -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Path, Err}} - end; - true -> case file:list_dir(Path) of - {ok, FileNames} -> - case lists:foldl( - fun (FileName, ok) -> - recursive_delete1( - filename:join(Path, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames) of - ok -> - case file:del_dir(Path) of - ok -> ok; - {error, Err} -> {error, {Path, Err}} - end; - {error, _Err} = Error -> - Error - end; - {error, Err} -> - {error, {Path, Err}} - end - end. - -recursive_copy(Src, Dest) -> - case filelib:is_dir(Src) of - false -> case file:copy(Src, Dest) of - {ok, _Bytes} -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Src, Dest, Err}} - end; - true -> case file:list_dir(Src) of - {ok, FileNames} -> - case file:make_dir(Dest) of - ok -> - lists:foldl( - fun (FileName, ok) -> - recursive_copy( - filename:join(Src, FileName), - filename:join(Dest, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames); - {error, Err} -> - {error, {Src, Dest, Err}} - end; - {error, Err} -> - {error, {Src, Dest, Err}} - end - end. - -dict_cons(Key, Value, Dict) -> - dict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -orddict_cons(Key, Value, Dict) -> - orddict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -unlink_and_capture_exit(Pid) -> - unlink(Pid), - receive {'EXIT', Pid, _} -> ok - after 0 -> ok - end. - -%% Separate flags and options from arguments. -%% get_options([{flag, "-q"}, {option, "-p", "/"}], -%% ["set_permissions","-p","/","guest", -%% "-q",".*",".*",".*"]) -%% == {["set_permissions","guest",".*",".*",".*"], -%% [{"-q",true},{"-p","/"}]} -get_options(Defs, As) -> - lists:foldl(fun(Def, {AsIn, RsIn}) -> - {AsOut, Value} = case Def of - {flag, Key} -> - get_flag(Key, AsIn); - {option, Key, Default} -> - get_option(Key, Default, AsIn) - end, - {AsOut, [{Key, Value} | RsIn]} - end, {As, []}, Defs). - -get_option(K, _Default, [K, V | As]) -> - {As, V}; -get_option(K, Default, [Nk | As]) -> - {As1, V} = get_option(K, Default, As), - {[Nk | As1], V}; -get_option(_, Default, As) -> - {As, Default}. - -get_flag(K, [K | As]) -> - {As, true}; -get_flag(K, [Nk | As]) -> - {As1, V} = get_flag(K, As), - {[Nk | As1], V}; -get_flag(_, []) -> - {[], false}. - -now_ms() -> - timer:now_diff(now(), {0,0,0}) div 1000. - -module_attributes(Module) -> - case catch Module:module_info(attributes) of - {'EXIT', {undef, [{Module, module_info, _} | _]}} -> - io:format("WARNING: module ~p not found, so not scanned for boot steps.~n", - [Module]), - []; - {'EXIT', Reason} -> - exit(Reason); - V -> - V - end. - -all_module_attributes(Name) -> - Modules = - lists:usort( - lists:append( - [Modules || {App, _, _} <- application:loaded_applications(), - {ok, Modules} <- [application:get_key(App, modules)]])), - lists:foldl( - fun (Module, Acc) -> - case lists:append([Atts || {N, Atts} <- module_attributes(Module), - N =:= Name]) of - [] -> Acc; - Atts -> [{Module, Atts} | Acc] - end - end, [], Modules). - - -build_acyclic_graph(VertexFun, EdgeFun, Graph) -> - G = digraph:new([acyclic]), - try - [case digraph:vertex(G, Vertex) of - false -> digraph:add_vertex(G, Vertex, Label); - _ -> ok = throw({graph_error, {vertex, duplicate, Vertex}}) - end || {Module, Atts} <- Graph, - {Vertex, Label} <- VertexFun(Module, Atts)], - [case digraph:add_edge(G, From, To) of - {error, E} -> throw({graph_error, {edge, E, From, To}}); - _ -> ok - end || {Module, Atts} <- Graph, - {From, To} <- EdgeFun(Module, Atts)], - {ok, G} - catch {graph_error, Reason} -> - true = digraph:delete(G), - {error, Reason} - end. - -%% TODO: When we stop supporting Erlang prior to R14, this should be -%% replaced with file:open [write, exclusive] -lock_file(Path) -> - case filelib:is_file(Path) of - true -> {error, eexist}; - false -> {ok, Lock} = file:open(Path, [write]), - ok = file:close(Lock) - end. - -const_ok(_) -> ok. -const(X) -> fun (_) -> X end. - -%% Format IPv4-mapped IPv6 addresses as IPv4, since they're what we see -%% when IPv6 is enabled but not used (i.e. 99% of the time). -ntoa({0,0,0,0,0,16#ffff,AB,CD}) -> - inet_parse:ntoa({AB bsr 8, AB rem 256, CD bsr 8, CD rem 256}); -ntoa(IP) -> - inet_parse:ntoa(IP). - -ntoab(IP) -> - Str = ntoa(IP), - case string:str(Str, ":") of - 0 -> Str; - _ -> "[" ++ Str ++ "]" - end. - -is_process_alive(Pid) when node(Pid) =:= node() -> - erlang:is_process_alive(Pid); -is_process_alive(Pid) -> - case rpc:call(node(Pid), erlang, is_process_alive, [Pid]) of - true -> true; - _ -> false - end. - diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl deleted file mode 100644 index 66436920..00000000 --- a/src/rabbit_mnesia.erl +++ /dev/null @@ -1,609 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - --module(rabbit_mnesia). - --export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/1, force_cluster/1, reset/0, force_reset/0, - is_clustered/0, running_clustered_nodes/0, all_clustered_nodes/0, - empty_ram_only_tables/0, copy_db/1, wait_for_tables/1]). - --export([table_names/0]). - -%% create_tables/0 exported for helping embed RabbitMQ in or alongside -%% other mnesia-using Erlang applications, such as ejabberd --export([create_tables/0]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([node_type/0]). - --type(node_type() :: disc_only | disc | ram | unknown). --spec(status/0 :: () -> [{'nodes', [{node_type(), [node()]}]} | - {'running_nodes', [node()]}]). --spec(dir/0 :: () -> file:filename()). --spec(ensure_mnesia_dir/0 :: () -> 'ok'). --spec(init/0 :: () -> 'ok'). --spec(is_db_empty/0 :: () -> boolean()). --spec(cluster/1 :: ([node()]) -> 'ok'). --spec(force_cluster/1 :: ([node()]) -> 'ok'). --spec(cluster/2 :: ([node()], boolean()) -> 'ok'). --spec(reset/0 :: () -> 'ok'). --spec(force_reset/0 :: () -> 'ok'). --spec(is_clustered/0 :: () -> boolean()). --spec(running_clustered_nodes/0 :: () -> [node()]). --spec(all_clustered_nodes/0 :: () -> [node()]). --spec(empty_ram_only_tables/0 :: () -> 'ok'). --spec(create_tables/0 :: () -> 'ok'). --spec(copy_db/1 :: (file:filename()) -> rabbit_types:ok_or_error(any())). --spec(wait_for_tables/1 :: ([atom()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -status() -> - [{nodes, case mnesia:system_info(is_running) of - yes -> [{Key, Nodes} || - {Key, CopyType} <- [{disc_only, disc_only_copies}, - {disc, disc_copies}, - {ram, ram_copies}], - begin - Nodes = nodes_of_type(CopyType), - Nodes =/= [] - end]; - no -> case all_clustered_nodes() of - [] -> []; - Nodes -> [{unknown, Nodes}] - end - end}, - {running_nodes, running_clustered_nodes()}]. - -init() -> - ok = ensure_mnesia_running(), - ok = ensure_mnesia_dir(), - ok = init_db(read_cluster_nodes_config(), true), - ok. - -is_db_empty() -> - lists:all(fun (Tab) -> mnesia:dirty_first(Tab) == '$end_of_table' end, - table_names()). - -cluster(ClusterNodes) -> - cluster(ClusterNodes, false). -force_cluster(ClusterNodes) -> - cluster(ClusterNodes, true). - -%% Alter which disk nodes this node is clustered with. This can be a -%% subset of all the disk nodes in the cluster but can (and should) -%% include the node itself if it is to be a disk rather than a ram -%% node. If Force is false, only connections to online nodes are -%% allowed. -cluster(ClusterNodes, Force) -> - ok = ensure_mnesia_not_running(), - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - try - ok = init_db(ClusterNodes, Force), - ok = create_cluster_nodes_config(ClusterNodes) - after - mnesia:stop() - end, - ok. - -%% return node to its virgin state, where it is not member of any -%% cluster, has no cluster configuration, no local database, and no -%% persisted messages -reset() -> reset(false). -force_reset() -> reset(true). - -is_clustered() -> - RunningNodes = running_clustered_nodes(), - [node()] /= RunningNodes andalso [] /= RunningNodes. - -all_clustered_nodes() -> - mnesia:system_info(db_nodes). - -running_clustered_nodes() -> - mnesia:system_info(running_db_nodes). - -empty_ram_only_tables() -> - Node = node(), - lists:foreach( - fun (TabName) -> - case lists:member(Node, mnesia:table_info(TabName, ram_copies)) of - true -> {atomic, ok} = mnesia:clear_table(TabName); - false -> ok - end - end, table_names()), - ok. - -%%-------------------------------------------------------------------- - -nodes_of_type(Type) -> - %% This function should return the nodes of a certain type (ram, - %% disc or disc_only) in the current cluster. The type of nodes - %% is determined when the cluster is initially configured. - %% Specifically, we check whether a certain table, which we know - %% will be written to disk on a disc node, is stored on disk or in - %% RAM. - mnesia:table_info(rabbit_durable_exchange, Type). - -table_definitions() -> - [{rabbit_user, - [{record_name, internal_user}, - {attributes, record_info(fields, internal_user)}, - {disc_copies, [node()]}, - {match, #internal_user{_='_'}}]}, - {rabbit_user_permission, - [{record_name, user_permission}, - {attributes, record_info(fields, user_permission)}, - {disc_copies, [node()]}, - {match, #user_permission{user_vhost = #user_vhost{_='_'}, - permission = #permission{_='_'}, - _='_'}}]}, - {rabbit_vhost, - [{record_name, vhost}, - {attributes, record_info(fields, vhost)}, - {disc_copies, [node()]}, - {match, #vhost{_='_'}}]}, - {rabbit_listener, - [{record_name, listener}, - {attributes, record_info(fields, listener)}, - {type, bag}, - {match, #listener{_='_'}}]}, - {rabbit_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {disc_copies, [node()]}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_reverse_route, - [{record_name, reverse_route}, - {attributes, record_info(fields, reverse_route)}, - {type, ordered_set}, - {match, #reverse_route{reverse_binding = reverse_binding_match(), - _='_'}}]}, - {rabbit_topic_trie_edge, - [{record_name, topic_trie_edge}, - {attributes, record_info(fields, topic_trie_edge)}, - {type, ordered_set}, - {match, #topic_trie_edge{trie_edge = trie_edge_match(), _='_'}}]}, - {rabbit_topic_trie_binding, - [{record_name, topic_trie_binding}, - {attributes, record_info(fields, topic_trie_binding)}, - {type, ordered_set}, - {match, #topic_trie_binding{trie_binding = trie_binding_match(), - _='_'}}]}, - %% Consider the implications to nodes_of_type/1 before altering - %% the next entry. - {rabbit_durable_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {disc_copies, [node()]}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_durable_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {disc_copies, [node()]}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}, - {rabbit_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}]. - -binding_match() -> - #binding{source = exchange_name_match(), - destination = binding_destination_match(), - _='_'}. -reverse_binding_match() -> - #reverse_binding{destination = binding_destination_match(), - source = exchange_name_match(), - _='_'}. -binding_destination_match() -> - resource_match('_'). -trie_edge_match() -> - #trie_edge{exchange_name = exchange_name_match(), - _='_'}. -trie_binding_match() -> - #trie_binding{exchange_name = exchange_name_match(), - _='_'}. -exchange_name_match() -> - resource_match(exchange). -queue_name_match() -> - resource_match(queue). -resource_match(Kind) -> - #resource{kind = Kind, _='_'}. - -table_names() -> - [Tab || {Tab, _} <- table_definitions()]. - -replicated_table_names() -> - [Tab || {Tab, TabDef} <- table_definitions(), - not lists:member({local_content, true}, TabDef) - ]. - -dir() -> mnesia:system_info(directory). - -ensure_mnesia_dir() -> - MnesiaDir = dir() ++ "/", - case filelib:ensure_dir(MnesiaDir) of - {error, Reason} -> - throw({error, {cannot_create_mnesia_dir, MnesiaDir, Reason}}); - ok -> - ok - end. - -ensure_mnesia_running() -> - case mnesia:system_info(is_running) of - yes -> ok; - no -> throw({error, mnesia_not_running}) - end. - -ensure_mnesia_not_running() -> - case mnesia:system_info(is_running) of - no -> ok; - yes -> throw({error, mnesia_unexpectedly_running}) - end. - -ensure_schema_integrity() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - throw({error, {schema_integrity_check_failed, Reason}}) - end. - -check_schema_integrity() -> - Tables = mnesia:system_info(tables), - case check_tables(fun (Tab, TabDef) -> - case lists:member(Tab, Tables) of - false -> {error, {table_missing, Tab}}; - true -> check_table_attributes(Tab, TabDef) - end - end) of - ok -> ok = wait_for_tables(), - check_tables(fun check_table_content/2); - Other -> Other - end. - -check_table_attributes(Tab, TabDef) -> - {_, ExpAttrs} = proplists:lookup(attributes, TabDef), - case mnesia:table_info(Tab, attributes) of - ExpAttrs -> ok; - Attrs -> {error, {table_attributes_mismatch, Tab, ExpAttrs, Attrs}} - end. - -check_table_content(Tab, TabDef) -> - {_, Match} = proplists:lookup(match, TabDef), - case mnesia:dirty_first(Tab) of - '$end_of_table' -> - ok; - Key -> - ObjList = mnesia:dirty_read(Tab, Key), - MatchComp = ets:match_spec_compile([{Match, [], ['$_']}]), - case ets:match_spec_run(ObjList, MatchComp) of - ObjList -> ok; - _ -> {error, {table_content_invalid, Tab, Match, ObjList}} - end - end. - -check_tables(Fun) -> - case [Error || {Tab, TabDef} <- table_definitions(), - case Fun(Tab, TabDef) of - ok -> Error = none, false; - {error, Error} -> true - end] of - [] -> ok; - Errors -> {error, Errors} - end. - -%% The cluster node config file contains some or all of the disk nodes -%% that are members of the cluster this node is / should be a part of. -%% -%% If the file is absent, the list is empty, or only contains the -%% current node, then the current node is a standalone (disk) -%% node. Otherwise it is a node that is part of a cluster as either a -%% disk node, if it appears in the cluster node config, or ram node if -%% it doesn't. - -cluster_nodes_config_filename() -> - dir() ++ "/cluster_nodes.config". - -create_cluster_nodes_config(ClusterNodes) -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:write_term_file(FileName, [ClusterNodes]) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_cluster_nodes_config, - FileName, Reason}}) - end. - -read_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - {ok, ClusterNodes} = application:get_env(rabbit, cluster_nodes), - ClusterNodes; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - FileName, Reason}}) - end. - -delete_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> - throw({error, {cannot_delete_cluster_nodes_config, - FileName, Reason}}) - end. - -%% Take a cluster node config and create the right kind of node - a -%% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. If Force is false, don't allow -%% connections to offline nodes. -init_db(ClusterNodes, Force) -> - UClusterNodes = lists:usort(ClusterNodes), - ProperClusterNodes = UClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ProperClusterNodes) of - {ok, Nodes} -> - case Force of - false -> FailedClusterNodes = ProperClusterNodes -- Nodes, - case FailedClusterNodes of - [] -> ok; - _ -> throw({error, {failed_to_cluster_with, - FailedClusterNodes, - "Mnesia could not connect " - "to some nodes."}}) - end; - true -> ok - end, - case {Nodes, mnesia:system_info(use_dir), all_clustered_nodes()} of - {[], true, [_]} -> - %% True single disc node, attempt upgrade - case rabbit_upgrade:maybe_upgrade() of - ok -> ensure_schema_integrity(); - version_not_available -> schema_ok_or_move() - end; - {[], true, _} -> - %% "Master" (i.e. without config) disc node in cluster, - %% verify schema - ensure_version_ok(rabbit_upgrade:read_version()), - ensure_schema_integrity(); - {[], false, _} -> - %% Nothing there at all, start from scratch - ok = create_schema(); - {[AnotherNode|_], _, _} -> - %% Subsequent node in cluster, catch up - ensure_version_ok(rabbit_upgrade:read_version()), - ensure_version_ok( - rpc:call(AnotherNode, rabbit_upgrade, read_version, [])), - IsDiskNode = ClusterNodes == [] orelse - lists:member(node(), ClusterNodes), - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_table_copies(case IsDiskNode of - true -> disc; - false -> ram - end), - ensure_schema_integrity() - end; - {error, Reason} -> - %% one reason we may end up here is if we try to join - %% nodes together that are currently running standalone or - %% are members of a different cluster - throw({error, {unable_to_join_cluster, ClusterNodes, Reason}}) - end. - -schema_ok_or_move() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - %% NB: we cannot use rabbit_log here since it may not have been - %% started yet - error_logger:warning_msg("schema integrity check failed: ~p~n" - "moving database to backup location " - "and recreating schema from scratch~n", - [Reason]), - ok = move_db(), - ok = create_schema() - end. - -ensure_version_ok({ok, DiscVersion}) -> - case rabbit_upgrade:desired_version() of - DiscVersion -> ok; - DesiredVersion -> throw({error, {schema_mismatch, - DesiredVersion, DiscVersion}}) - end; -ensure_version_ok({error, _}) -> - ok = rabbit_upgrade:write_version(). - -create_schema() -> - mnesia:stop(), - rabbit_misc:ensure_ok(mnesia:create_schema([node()]), - cannot_create_schema), - rabbit_misc:ensure_ok(mnesia:start(), - cannot_start_mnesia), - ok = create_tables(), - ok = ensure_schema_integrity(), - ok = rabbit_upgrade:write_version(). - -move_db() -> - mnesia:stop(), - MnesiaDir = filename:dirname(dir() ++ "/"), - {{Year, Month, Day}, {Hour, Minute, Second}} = erlang:universaltime(), - BackupDir = lists:flatten( - io_lib:format("~s_~w~2..0w~2..0w~2..0w~2..0w~2..0w", - [MnesiaDir, - Year, Month, Day, Hour, Minute, Second])), - case file:rename(MnesiaDir, BackupDir) of - ok -> - %% NB: we cannot use rabbit_log here since it may not have - %% been started yet - error_logger:warning_msg("moved database from ~s to ~s~n", - [MnesiaDir, BackupDir]), - ok; - {error, Reason} -> throw({error, {cannot_backup_mnesia, - MnesiaDir, BackupDir, Reason}}) - end, - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok. - -copy_db(Destination) -> - mnesia:stop(), - case rabbit_misc:recursive_copy(dir(), Destination) of - ok -> - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia); - {error, E} -> - {error, E} - end. - -create_tables() -> - lists:foreach(fun ({Tab, TabDef}) -> - TabDef1 = proplists:delete(match, TabDef), - case mnesia:create_table(Tab, TabDef1) of - {atomic, ok} -> ok; - {aborted, Reason} -> - throw({error, {table_creation_failed, - Tab, TabDef1, Reason}}) - end - end, - table_definitions()), - ok. - -table_has_copy_type(TabDef, DiscType) -> - lists:member(node(), proplists:get_value(DiscType, TabDef, [])). - -create_local_table_copies(Type) -> - lists:foreach( - fun ({Tab, TabDef}) -> - HasDiscCopies = table_has_copy_type(TabDef, disc_copies), - HasDiscOnlyCopies = table_has_copy_type(TabDef, disc_only_copies), - LocalTab = proplists:get_bool(local_content, TabDef), - StorageType = - if - Type =:= disc orelse LocalTab -> - if - HasDiscCopies -> disc_copies; - HasDiscOnlyCopies -> disc_only_copies; - true -> ram_copies - end; -%%% unused code - commented out to keep dialyzer happy -%%% Type =:= disc_only -> -%%% if -%%% HasDiscCopies or HasDiscOnlyCopies -> -%%% disc_only_copies; -%%% true -> ram_copies -%%% end; - Type =:= ram -> - ram_copies - end, - ok = create_local_table_copy(Tab, StorageType) - end, - table_definitions()), - ok. - -create_local_table_copy(Tab, Type) -> - StorageType = mnesia:table_info(Tab, storage_type), - {atomic, ok} = - if - StorageType == unknown -> - mnesia:add_table_copy(Tab, node(), Type); - StorageType /= Type -> - mnesia:change_table_copy_type(Tab, node(), Type); - true -> {atomic, ok} - end, - ok. - -wait_for_replicated_tables() -> wait_for_tables(replicated_table_names()). - -wait_for_tables() -> wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> - case mnesia:wait_for_tables(TableNames, 30000) of - ok -> - ok; - {timeout, BadTabs} -> - throw({error, {timeout_waiting_for_tables, BadTabs}}); - {error, Reason} -> - throw({error, {failed_waiting_for_tables, Reason}}) - end. - -reset(Force) -> - ok = ensure_mnesia_not_running(), - Node = node(), - case Force of - true -> ok; - false -> - ok = ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - {Nodes, RunningNodes} = - try - ok = init(), - {all_clustered_nodes() -- [Node], - running_clustered_nodes() -- [Node]} - after - mnesia:stop() - end, - leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) - end, - ok = delete_cluster_nodes_config(), - %% remove persisted messages and any other garbage we find - ok = rabbit_misc:recursive_delete(filelib:wildcard(dir() ++ "/*")), - ok. - -leave_cluster([], _) -> ok; -leave_cluster(Nodes, RunningNodes) -> - %% find at least one running cluster node and instruct it to - %% remove our schema copy which will in turn result in our node - %% being removed as a cluster node from the schema, with that - %% change being propagated to all nodes - case lists:any( - fun (Node) -> - case rpc:call(Node, mnesia, del_table_copy, - [schema, node()]) of - {atomic, ok} -> true; - {badrpc, nodedown} -> false; - {aborted, Reason} -> - throw({error, {failed_to_leave_cluster, - Nodes, RunningNodes, Reason}}) - end - end, - RunningNodes) of - true -> ok; - false -> throw({error, {no_running_cluster_nodes, - Nodes, RunningNodes}}) - end. diff --git a/src/rabbit_msg_file.erl b/src/rabbit_msg_file.erl deleted file mode 100644 index b7de27d4..00000000 --- a/src/rabbit_msg_file.erl +++ /dev/null @@ -1,125 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_file). - --export([append/3, read/2, scan/4]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_MARKER, 255). --define(FILE_PACKING_ADJUSTMENT, (1 + ?INTEGER_SIZE_BYTES)). --define(MSG_ID_SIZE_BYTES, 16). --define(MSG_ID_SIZE_BITS, (8 * ?MSG_ID_SIZE_BYTES)). --define(SCAN_BLOCK_SIZE, 4194304). %% 4MB - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(io_device() :: any()). --type(position() :: non_neg_integer()). --type(msg_size() :: non_neg_integer()). --type(file_size() :: non_neg_integer()). --type(message_accumulator(A) :: - fun (({rabbit_types:msg_id(), msg_size(), position(), binary()}, A) -> - A)). - --spec(append/3 :: (io_device(), rabbit_types:msg_id(), msg()) -> - rabbit_types:ok_or_error2(msg_size(), any())). --spec(read/2 :: (io_device(), msg_size()) -> - rabbit_types:ok_or_error2({rabbit_types:msg_id(), msg()}, - any())). --spec(scan/4 :: (io_device(), file_size(), message_accumulator(A), A) -> - {'ok', A, position()}). - --endif. - -%%---------------------------------------------------------------------------- - -append(FileHdl, MsgId, MsgBody) - when is_binary(MsgId) andalso size(MsgId) =:= ?MSG_ID_SIZE_BYTES -> - MsgBodyBin = term_to_binary(MsgBody), - MsgBodyBinSize = size(MsgBodyBin), - Size = MsgBodyBinSize + ?MSG_ID_SIZE_BYTES, - case file_handle_cache:append(FileHdl, - <>) of - ok -> {ok, Size + ?FILE_PACKING_ADJUSTMENT}; - KO -> KO - end. - -read(FileHdl, TotalSize) -> - Size = TotalSize - ?FILE_PACKING_ADJUSTMENT, - BodyBinSize = Size - ?MSG_ID_SIZE_BYTES, - case file_handle_cache:read(FileHdl, TotalSize) of - {ok, <>} -> - {ok, {MsgId, binary_to_term(MsgBodyBin)}}; - KO -> KO - end. - -scan(FileHdl, FileSize, Fun, Acc) when FileSize >= 0 -> - scan(FileHdl, FileSize, <<>>, 0, 0, Fun, Acc). - -scan(_FileHdl, FileSize, _Data, FileSize, ScanOffset, _Fun, Acc) -> - {ok, Acc, ScanOffset}; -scan(FileHdl, FileSize, Data, ReadOffset, ScanOffset, Fun, Acc) -> - Read = lists:min([?SCAN_BLOCK_SIZE, (FileSize - ReadOffset)]), - case file_handle_cache:read(FileHdl, Read) of - {ok, Data1} -> - {Data2, Acc1, ScanOffset1} = - scanner(<>, ScanOffset, Fun, Acc), - ReadOffset1 = ReadOffset + size(Data1), - scan(FileHdl, FileSize, Data2, ReadOffset1, ScanOffset1, Fun, Acc1); - _KO -> - {ok, Acc, ScanOffset} - end. - -scanner(<<>>, Offset, _Fun, Acc) -> - {<<>>, Acc, Offset}; -scanner(<<0:?INTEGER_SIZE_BITS, _Rest/binary>>, Offset, _Fun, Acc) -> - {<<>>, Acc, Offset}; %% Nothing to do other than stop. -scanner(<>, Offset, Fun, Acc) -> - TotalSize = Size + ?FILE_PACKING_ADJUSTMENT, - case WriteMarker of - ?WRITE_OK_MARKER -> - %% Here we take option 5 from - %% http://www.erlang.org/cgi-bin/ezmlm-cgi?2:mss:1569 in - %% which we read the MsgId as a number, and then convert it - %% back to a binary in order to work around bugs in - %% Erlang's GC. - <> = - <>, - <> = - <>, - scanner(Rest, Offset + TotalSize, Fun, - Fun({MsgId, TotalSize, Offset, Msg}, Acc)); - _ -> - scanner(Rest, Offset + TotalSize, Fun, Acc) - end; -scanner(Data, Offset, _Fun, Acc) -> - {Data, Acc, Offset}. diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl deleted file mode 100644 index a08bbd70..00000000 --- a/src/rabbit_msg_store.erl +++ /dev/null @@ -1,2014 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store). - --behaviour(gen_server2). - --export([start_link/4, successfully_recovered_state/1, - client_init/4, client_terminate/1, client_delete_and_terminate/1, - client_ref/1, close_all_indicated/1, - write/3, read/2, contains/2, remove/2, release/2, sync/3]). - --export([sync/1, set_maximum_since_use/2, - has_readers/2, combine_files/3, delete_file/2]). %% internal - --export([transform_dir/3, force_recovery/2]). %% upgrade - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_call/3, prioritise_cast/2]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(CLEAN_FILENAME, "clean.dot"). --define(FILE_SUMMARY_FILENAME, "file_summary.ets"). --define(TRANSFORM_TMP, "transform_tmp"). - --define(BINARY_MODE, [raw, binary]). --define(READ_MODE, [read]). --define(READ_AHEAD_MODE, [read_ahead | ?READ_MODE]). --define(WRITE_MODE, [write]). - --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). - --define(HANDLE_CACHE_BUFFER_SIZE, 1048576). %% 1MB - -%%---------------------------------------------------------------------------- - --record(msstate, - { dir, %% store directory - index_module, %% the module for index ops - index_state, %% where are messages? - current_file, %% current file name as number - current_file_handle, %% current file handle since the last fsync? - file_handle_cache, %% file handle cache - on_sync, %% pending sync requests - sync_timer_ref, %% TRef for our interval timer - sum_valid_data, %% sum of valid data in all files - sum_file_size, %% sum of file sizes - pending_gc_completion, %% things to do once GC completes - gc_pid, %% pid of our GC - file_handles_ets, %% tid of the shared file handles table - file_summary_ets, %% tid of the file summary table - dedup_cache_ets, %% tid of dedup cache table - cur_file_cache_ets, %% tid of current file cache table - dying_clients, %% set of dying clients - clients, %% map of references of all registered clients - %% to callbacks - successfully_recovered, %% boolean: did we recover state? - file_size_limit, %% how big are our files allowed to get? - cref_to_msg_ids %% client ref to synced messages mapping - }). - --record(client_msstate, - { server, - client_ref, - file_handle_cache, - index_state, - index_module, - dir, - gc_pid, - file_handles_ets, - file_summary_ets, - dedup_cache_ets, - cur_file_cache_ets - }). - --record(file_summary, - {file, valid_total_size, left, right, file_size, locked, readers}). - --record(gc_state, - { dir, - index_module, - index_state, - file_summary_ets, - file_handles_ets, - msg_store - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([gc_state/0, file_num/0]). - --type(gc_state() :: #gc_state { dir :: file:filename(), - index_module :: atom(), - index_state :: any(), - file_summary_ets :: ets:tid(), - file_handles_ets :: ets:tid(), - msg_store :: server() - }). - --type(server() :: pid() | atom()). --type(client_ref() :: binary()). --type(file_num() :: non_neg_integer()). --type(client_msstate() :: #client_msstate { - server :: server(), - client_ref :: client_ref(), - file_handle_cache :: dict(), - index_state :: any(), - index_module :: atom(), - dir :: file:filename(), - gc_pid :: pid(), - file_handles_ets :: ets:tid(), - file_summary_ets :: ets:tid(), - dedup_cache_ets :: ets:tid(), - cur_file_cache_ets :: ets:tid()}). --type(msg_ref_delta_gen(A) :: - fun ((A) -> 'finished' | - {rabbit_types:msg_id(), non_neg_integer(), A})). --type(maybe_msg_id_fun() :: 'undefined' | fun ((gb_set()) -> any())). --type(maybe_close_fds_fun() :: 'undefined' | fun (() -> 'ok')). --type(deletion_thunk() :: fun (() -> boolean())). - --spec(start_link/4 :: - (atom(), file:filename(), [binary()] | 'undefined', - {msg_ref_delta_gen(A), A}) -> rabbit_types:ok_pid_or_error()). --spec(successfully_recovered_state/1 :: (server()) -> boolean()). --spec(client_init/4 :: (server(), client_ref(), maybe_msg_id_fun(), - maybe_close_fds_fun()) -> client_msstate()). --spec(client_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_delete_and_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_ref/1 :: (client_msstate()) -> client_ref()). --spec(write/3 :: (rabbit_types:msg_id(), msg(), client_msstate()) -> 'ok'). --spec(read/2 :: (rabbit_types:msg_id(), client_msstate()) -> - {rabbit_types:ok(msg()) | 'not_found', client_msstate()}). --spec(contains/2 :: (rabbit_types:msg_id(), client_msstate()) -> boolean()). --spec(remove/2 :: ([rabbit_types:msg_id()], client_msstate()) -> 'ok'). --spec(release/2 :: ([rabbit_types:msg_id()], client_msstate()) -> 'ok'). --spec(sync/3 :: - ([rabbit_types:msg_id()], fun (() -> any()), client_msstate()) -> 'ok'). - --spec(sync/1 :: (server()) -> 'ok'). --spec(set_maximum_since_use/2 :: (server(), non_neg_integer()) -> 'ok'). --spec(has_readers/2 :: (non_neg_integer(), gc_state()) -> boolean()). --spec(combine_files/3 :: (non_neg_integer(), non_neg_integer(), gc_state()) -> - deletion_thunk()). --spec(delete_file/2 :: (non_neg_integer(), gc_state()) -> deletion_thunk()). --spec(force_recovery/2 :: (file:filename(), server()) -> 'ok'). --spec(transform_dir/3 :: (file:filename(), server(), - fun ((any()) -> (rabbit_types:ok_or_error2(msg(), any())))) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%% We run GC whenever (garbage / sum_file_size) > ?GARBAGE_FRACTION -%% It is not recommended to set this to < 0.5 --define(GARBAGE_FRACTION, 0.5). - -%% The components: -%% -%% Index: this is a mapping from MsgId to #msg_location{}: -%% {MsgId, RefCount, File, Offset, TotalSize} -%% By default, it's in ets, but it's also pluggable. -%% FileSummary: this is an ets table which maps File to #file_summary{}: -%% {File, ValidTotalSize, Left, Right, FileSize, Locked, Readers} -%% -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the Index); how much useful data is in each file and which files -%% are on the left and right of each other. This is the purpose of the -%% FileSummary ets table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file. This is needed for garbage collection. -%% -%% When we discover that a file is now empty, we delete it. When we -%% discover that it can be combined with the useful data in either its -%% left or right neighbour, and overall, across all the files, we have -%% ((the amount of garbage) / (the sum of all file sizes)) > -%% ?GARBAGE_FRACTION, we start a garbage collection run concurrently, -%% which will compact the two files together. This keeps disk -%% utilisation high and aids performance. We deliberately do this -%% lazily in order to prevent doing GC on files which are soon to be -%% emptied (and hence deleted) soon. -%% -%% Given the compaction between two files, the left file (i.e. elder -%% file) is considered the ultimate destination for the good data in -%% the right file. If necessary, the good data in the left file which -%% is fragmented throughout the file is written out to a temporary -%% file, then read back in to form a contiguous chunk of good data at -%% the start of the left file. Thus the left file is garbage collected -%% and compacted. Then the good data from the right file is copied -%% onto the end of the left file. Index and FileSummary tables are -%% updated. -%% -%% On non-clean startup, we scan the files we discover, dealing with -%% the possibilites of a crash having occured during a compaction -%% (this consists of tidyup - the compaction is deliberately designed -%% such that data is duplicated on disk rather than risking it being -%% lost), and rebuild the FileSummary ets table and Index. -%% -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten. -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). -%% -%% Messages are reference-counted. When a message with the same msg id -%% is written several times we only store it once, and only remove it -%% from the store when it has been removed the same number of times. -%% -%% The reference counts do not persist. Therefore the initialisation -%% function must be provided with a generator that produces ref count -%% deltas for all recovered messages. This is only used on startup -%% when the shutdown was non-clean. -%% -%% Read messages with a reference count greater than one are entered -%% into a message cache. The purpose of the cache is not especially -%% performance, though it can help there too, but prevention of memory -%% explosion. It ensures that as messages with a high reference count -%% are read from several processes they are read back as the same -%% binary object rather than multiples of identical binary -%% objects. -%% -%% Reads can be performed directly by clients without calling to the -%% server. This is safe because multiple file handles can be used to -%% read files. However, locking is used by the concurrent GC to make -%% sure that reads are not attempted from files which are in the -%% process of being garbage collected. -%% -%% When a message is removed, its reference count is decremented. Even -%% if the reference count becomes 0, its entry is not removed. This is -%% because in the event of the same message being sent to several -%% different queues, there is the possibility of one queue writing and -%% removing the message before other queues write it at all. Thus -%% accomodating 0-reference counts allows us to avoid unnecessary -%% writes here. Of course, there are complications: the file to which -%% the message has already been written could be locked pending -%% deletion or GC, which means we have to rewrite the message as the -%% original copy will now be lost. -%% -%% The server automatically defers reads, removes and contains calls -%% that occur which refer to files which are currently being -%% GC'd. Contains calls are only deferred in order to ensure they do -%% not overtake removes. -%% -%% The current file to which messages are being written has a -%% write-back cache. This is written to immediately by clients and can -%% be read from by clients too. This means that there are only ever -%% writes made to the current file, thus eliminating delays due to -%% flushing write buffers in order to be able to safely read from the -%% current file. The one exception to this is that on start up, the -%% cache is not populated with msgs found in the current file, and -%% thus in this case only, reads may have to come from the file -%% itself. The effect of this is that even if the msg_store process is -%% heavily overloaded, clients can still write and read messages with -%% very low latency and not block at all. -%% -%% Clients of the msg_store are required to register before using the -%% msg_store. This provides them with the necessary client-side state -%% to allow them to directly access the various caches and files. When -%% they terminate, they should deregister. They can do this by calling -%% either client_terminate/1 or client_delete_and_terminate/1. The -%% differences are: (a) client_terminate is synchronous. As a result, -%% if the msg_store is badly overloaded and has lots of in-flight -%% writes and removes to process, this will take some time to -%% return. However, once it does return, you can be sure that all the -%% actions you've issued to the msg_store have been processed. (b) Not -%% only is client_delete_and_terminate/1 asynchronous, but it also -%% permits writes and subsequent removes from the current -%% (terminating) client which are still in flight to be safely -%% ignored. Thus from the point of view of the msg_store itself, and -%% all from the same client: -%% -%% (T) = termination; (WN) = write of msg N; (RN) = remove of msg N -%% --> W1, W2, W1, R1, T, W3, R2, W2, R1, R2, R3, W4 --> -%% -%% The client obviously sent T after all the other messages (up to -%% W4), but because the msg_store prioritises messages, the T can be -%% promoted and thus received early. -%% -%% Thus at the point of the msg_store receiving T, we have messages 1 -%% and 2 with a refcount of 1. After T, W3 will be ignored because -%% it's an unknown message, as will R3, and W4. W2, R1 and R2 won't be -%% ignored because the messages that they refer to were already known -%% to the msg_store prior to T. However, it can be a little more -%% complex: after the first R2, the refcount of msg 2 is 0. At that -%% point, if a GC occurs or file deletion, msg 2 could vanish, which -%% would then mean that the subsequent W2 and R2 are then ignored. -%% -%% The use case then for client_delete_and_terminate/1 is if the -%% client wishes to remove everything it's written to the msg_store: -%% it issues removes for all messages it's written and not removed, -%% and then calls client_delete_and_terminate/1. At that point, any -%% in-flight writes (and subsequent removes) can be ignored, but -%% removes and writes for messages the msg_store already knows about -%% will continue to be processed normally (which will normally just -%% involve modifying the reference count, which is fast). Thus we save -%% disk bandwidth for writes which are going to be immediately removed -%% again by the the terminating client. -%% -%% We use a separate set to keep track of the dying clients in order -%% to keep that set, which is inspected on every write and remove, as -%% small as possible. Inspecting the set of all clients would degrade -%% performance with many healthy clients and few, if any, dying -%% clients, which is the typical case. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -start_link(Server, Dir, ClientRefs, StartupFunState) -> - gen_server2:start_link({local, Server}, ?MODULE, - [Server, Dir, ClientRefs, StartupFunState], - [{timeout, infinity}]). - -successfully_recovered_state(Server) -> - gen_server2:call(Server, successfully_recovered_state, infinity). - -client_init(Server, Ref, MsgOnDiskFun, CloseFDsFun) -> - {IState, IModule, Dir, GCPid, - FileHandlesEts, FileSummaryEts, DedupCacheEts, CurFileCacheEts} = - gen_server2:call( - Server, {new_client_state, Ref, MsgOnDiskFun, CloseFDsFun}, infinity), - #client_msstate { server = Server, - client_ref = Ref, - file_handle_cache = dict:new(), - index_state = IState, - index_module = IModule, - dir = Dir, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts }. - -client_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_call(CState, {client_terminate, Ref}). - -client_delete_and_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_cast(CState, {client_dying, Ref}), - ok = server_cast(CState, {client_delete, Ref}). - -client_ref(#client_msstate { client_ref = Ref }) -> Ref. - -write(MsgId, Msg, - CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts, - client_ref = CRef }) -> - ok = update_msg_cache(CurFileCacheEts, MsgId, Msg), - ok = server_cast(CState, {write, CRef, MsgId}). - -read(MsgId, - CState = #client_msstate { dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts }) -> - %% 1. Check the dedup cache - case fetch_and_increment_cache(DedupCacheEts, MsgId) of - not_found -> - %% 2. Check the cur file cache - case ets:lookup(CurFileCacheEts, MsgId) of - [] -> - Defer = fun() -> - {server_call(CState, {read, MsgId}), CState} - end, - case index_lookup_positive_ref_count(MsgId, CState) of - not_found -> Defer(); - MsgLocation -> client_read1(MsgLocation, Defer, CState) - end; - [{MsgId, Msg, _CacheRefCount}] -> - %% Although we've found it, we don't know the - %% refcount, so can't insert into dedup cache - {{ok, Msg}, CState} - end; - Msg -> - {{ok, Msg}, CState} - end. - -contains(MsgId, CState) -> server_call(CState, {contains, MsgId}). -remove([], _CState) -> ok; -remove(MsgIds, CState = #client_msstate { client_ref = CRef }) -> - server_cast(CState, {remove, CRef, MsgIds}). -release([], _CState) -> ok; -release(MsgIds, CState) -> server_cast(CState, {release, MsgIds}). -sync(MsgIds, K, CState) -> server_cast(CState, {sync, MsgIds, K}). - -sync(Server) -> - gen_server2:cast(Server, sync). - -set_maximum_since_use(Server, Age) -> - gen_server2:cast(Server, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- -%% Client-side-only helpers -%%---------------------------------------------------------------------------- - -server_call(#client_msstate { server = Server }, Msg) -> - gen_server2:call(Server, Msg, infinity). - -server_cast(#client_msstate { server = Server }, Msg) -> - gen_server2:cast(Server, Msg). - -client_read1(#msg_location { msg_id = MsgId, file = File } = MsgLocation, Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - case ets:lookup(FileSummaryEts, File) of - [] -> %% File has been GC'd and no longer exists. Go around again. - read(MsgId, CState); - [#file_summary { locked = Locked, right = Right }] -> - client_read2(Locked, Right, MsgLocation, Defer, CState) - end. - -client_read2(false, undefined, _MsgLocation, Defer, _CState) -> - %% Although we've already checked both caches and not found the - %% message there, the message is apparently in the - %% current_file. We can only arrive here if we are trying to read - %% a message which we have not written, which is very odd, so just - %% defer. - %% - %% OR, on startup, the cur_file_cache is not populated with the - %% contents of the current file, thus reads from the current file - %% will end up here and will need to be deferred. - Defer(); -client_read2(true, _Right, _MsgLocation, Defer, _CState) -> - %% Of course, in the mean time, the GC could have run and our msg - %% is actually in a different file, unlocked. However, defering is - %% the safest and simplest thing to do. - Defer(); -client_read2(false, _Right, - MsgLocation = #msg_location { msg_id = MsgId, file = File }, - Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - %% It's entirely possible that everything we're doing from here on - %% is for the wrong file, or a non-existent file, as a GC may have - %% finished. - safe_ets_update_counter( - FileSummaryEts, File, {#file_summary.readers, +1}, - fun (_) -> client_read3(MsgLocation, Defer, CState) end, - fun () -> read(MsgId, CState) end). - -client_read3(#msg_location { msg_id = MsgId, file = File }, Defer, - CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - gc_pid = GCPid, - client_ref = Ref }) -> - Release = - fun() -> ok = case ets:update_counter(FileSummaryEts, File, - {#file_summary.readers, -1}) of - 0 -> case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - rabbit_msg_store_gc:no_readers( - GCPid, File); - _ -> ok - end; - _ -> ok - end - end, - %% If a GC involving the file hasn't already started, it won't - %% start now. Need to check again to see if we've been locked in - %% the meantime, between lookup and update_counter (thus GC - %% started before our +1. In fact, it could have finished by now - %% too). - case ets:lookup(FileSummaryEts, File) of - [] -> %% GC has deleted our file, just go round again. - read(MsgId, CState); - [#file_summary { locked = true }] -> - %% If we get a badarg here, then the GC has finished and - %% deleted our file. Try going around again. Otherwise, - %% just defer. - %% - %% badarg scenario: we lookup, msg_store locks, GC starts, - %% GC ends, we +1 readers, msg_store ets:deletes (and - %% unlocks the dest) - try Release(), - Defer() - catch error:badarg -> read(MsgId, CState) - end; - [#file_summary { locked = false }] -> - %% Ok, we're definitely safe to continue - a GC involving - %% the file cannot start up now, and isn't running, so - %% nothing will tell us from now on to close the handle if - %% it's already open. - %% - %% Finally, we need to recheck that the msg is still at - %% the same place - it's possible an entire GC ran between - %% us doing the lookup and the +1 on the readers. (Same as - %% badarg scenario above, but we don't have a missing file - %% - we just have the /wrong/ file). - case index_lookup(MsgId, CState) of - #msg_location { file = File } = MsgLocation -> - %% Still the same file. - {ok, CState1} = close_all_indicated(CState), - %% We are now guaranteed that the mark_handle_open - %% call will either insert_new correctly, or will - %% fail, but find the value is open, not close. - mark_handle_open(FileHandlesEts, File, Ref), - %% Could the msg_store now mark the file to be - %% closed? No: marks for closing are issued only - %% when the msg_store has locked the file. - {Msg, CState2} = %% This will never be the current file - read_from_disk(MsgLocation, CState1, DedupCacheEts), - Release(), %% this MUST NOT fail with badarg - {{ok, Msg}, CState2}; - #msg_location {} = MsgLocation -> %% different file! - Release(), %% this MUST NOT fail with badarg - client_read1(MsgLocation, Defer, CState); - not_found -> %% it seems not to exist. Defer, just to be sure. - try Release() %% this can badarg, same as locked case, above - catch error:badarg -> ok - end, - Defer() - end - end. - -clear_client(CRef, State = #msstate { cref_to_msg_ids = CTM, - dying_clients = DyingClients }) -> - State #msstate { cref_to_msg_ids = dict:erase(CRef, CTM), - dying_clients = sets:del_element(CRef, DyingClients) }. - - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([Server, BaseDir, ClientRefs, StartupFunState]) -> - process_flag(trap_exit, true), - - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - - Dir = filename:join(BaseDir, atom_to_list(Server)), - - {ok, IndexModule} = application:get_env(msg_store_index_module), - rabbit_log:info("~w: using ~p to provide index~n", [Server, IndexModule]), - - AttemptFileSummaryRecovery = - case ClientRefs of - undefined -> ok = rabbit_misc:recursive_delete([Dir]), - ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - false; - _ -> ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - recover_crashed_compactions(Dir) - end, - - %% if we found crashed compactions we trust neither the - %% file_summary nor the location index. Note the file_summary is - %% left empty here if it can't be recovered. - {FileSummaryRecovered, FileSummaryEts} = - recover_file_summary(AttemptFileSummaryRecovery, Dir), - - {CleanShutdown, IndexState, ClientRefs1} = - recover_index_and_client_refs(IndexModule, FileSummaryRecovered, - ClientRefs, Dir, Server), - Clients = dict:from_list( - [{CRef, {undefined, undefined}} || CRef <- ClientRefs1]), - %% CleanShutdown => msg location index and file_summary both - %% recovered correctly. - true = case {FileSummaryRecovered, CleanShutdown} of - {true, false} -> ets:delete_all_objects(FileSummaryEts); - _ -> true - end, - %% CleanShutdown <=> msg location index and file_summary both - %% recovered correctly. - - DedupCacheEts = ets:new(rabbit_msg_store_dedup_cache, [set, public]), - FileHandlesEts = ets:new(rabbit_msg_store_shared_file_handles, - [ordered_set, public]), - CurFileCacheEts = ets:new(rabbit_msg_store_cur_file, [set, public]), - - {ok, FileSizeLimit} = application:get_env(msg_store_file_size_limit), - - {ok, GCPid} = rabbit_msg_store_gc:start_link( - #gc_state { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - msg_store = self() - }), - - State = #msstate { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - current_file = 0, - current_file_handle = undefined, - file_handle_cache = dict:new(), - on_sync = [], - sync_timer_ref = undefined, - sum_valid_data = 0, - sum_file_size = 0, - pending_gc_completion = orddict:new(), - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts, - dying_clients = sets:new(), - clients = Clients, - successfully_recovered = CleanShutdown, - file_size_limit = FileSizeLimit, - cref_to_msg_ids = dict:new() - }, - - %% If we didn't recover the msg location index then we need to - %% rebuild it now. - {Offset, State1 = #msstate { current_file = CurFile }} = - build_index(CleanShutdown, StartupFunState, State), - - %% read is only needed so that we can seek - {ok, CurHdl} = open_file(Dir, filenum_to_name(CurFile), - [read | ?WRITE_MODE]), - {ok, Offset} = file_handle_cache:position(CurHdl, Offset), - ok = file_handle_cache:truncate(CurHdl), - - {ok, maybe_compact(State1 #msstate { current_file_handle = CurHdl }), - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - successfully_recovered_state -> 7; - {new_client_state, _Ref, _MODC, _CloseFDsFun} -> 7; - {read, _MsgId} -> 2; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - sync -> 8; - {combine_files, _Source, _Destination, _Reclaimed} -> 8; - {delete_file, _File, _Reclaimed} -> 8; - {set_maximum_since_use, _Age} -> 8; - {client_dying, _Pid} -> 7; - _ -> 0 - end. - -handle_call(successfully_recovered_state, _From, State) -> - reply(State #msstate.successfully_recovered, State); - -handle_call({new_client_state, CRef, MsgOnDiskFun, CloseFDsFun}, _From, - State = #msstate { dir = Dir, - index_state = IndexState, - index_module = IndexModule, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - gc_pid = GCPid }) -> - Clients1 = dict:store(CRef, {MsgOnDiskFun, CloseFDsFun}, Clients), - reply({IndexState, IndexModule, Dir, GCPid, - FileHandlesEts, FileSummaryEts, DedupCacheEts, CurFileCacheEts}, - State #msstate { clients = Clients1 }); - -handle_call({client_terminate, CRef}, _From, State) -> - reply(ok, clear_client(CRef, State)); - -handle_call({read, MsgId}, From, State) -> - State1 = read_message(MsgId, From, State), - noreply(State1); - -handle_call({contains, MsgId}, From, State) -> - State1 = contains_message(MsgId, From, State), - noreply(State1). - -handle_cast({client_dying, CRef}, - State = #msstate { dying_clients = DyingClients }) -> - DyingClients1 = sets:add_element(CRef, DyingClients), - noreply(write_message(CRef, <<>>, - State #msstate { dying_clients = DyingClients1 })); - -handle_cast({client_delete, CRef}, State = #msstate { clients = Clients }) -> - State1 = State #msstate { clients = dict:erase(CRef, Clients) }, - noreply(remove_message(CRef, CRef, clear_client(CRef, State1))); - -handle_cast({write, CRef, MsgId}, - State = #msstate { cur_file_cache_ets = CurFileCacheEts }) -> - true = 0 =< ets:update_counter(CurFileCacheEts, MsgId, {3, -1}), - [{MsgId, Msg, _CacheRefCount}] = ets:lookup(CurFileCacheEts, MsgId), - noreply( - case write_action(should_mask_action(CRef, MsgId, State), MsgId, State) of - {write, State1} -> - write_message(CRef, MsgId, Msg, State1); - {ignore, CurFile, State1 = #msstate { current_file = CurFile }} -> - State1; - {ignore, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), - State1; - {confirm, CurFile, State1 = #msstate { current_file = CurFile }}-> - record_pending_confirm(CRef, MsgId, State1); - {confirm, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), - update_pending_confirms( - fun (MsgOnDiskFun, CTM) -> - MsgOnDiskFun(gb_sets:singleton(MsgId), written), - CTM - end, CRef, State1) - end); - -handle_cast({remove, CRef, MsgIds}, State) -> - State1 = lists:foldl( - fun (MsgId, State2) -> remove_message(MsgId, CRef, State2) end, - State, MsgIds), - noreply(maybe_compact(client_confirm(CRef, gb_sets:from_list(MsgIds), - removed, State1))); - -handle_cast({release, MsgIds}, State = - #msstate { dedup_cache_ets = DedupCacheEts }) -> - lists:foreach( - fun (MsgId) -> decrement_cache(DedupCacheEts, MsgId) end, MsgIds), - noreply(State); - -handle_cast({sync, MsgIds, K}, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - on_sync = Syncs }) -> - {ok, SyncOffset} = file_handle_cache:last_sync_offset(CurHdl), - case lists:any(fun (MsgId) -> - #msg_location { file = File, offset = Offset } = - index_lookup(MsgId, State), - File =:= CurFile andalso Offset >= SyncOffset - end, MsgIds) of - false -> K(), - noreply(State); - true -> noreply(State #msstate { on_sync = [K | Syncs] }) - end; - -handle_cast(sync, State) -> - noreply(internal_sync(State)); - -handle_cast({combine_files, Source, Destination, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - ok = cleanup_after_file_deletion(Source, State), - %% see comment in cleanup_after_file_deletion, and client_read3 - true = mark_handle_to_close(Clients, FileHandlesEts, Destination, false), - true = ets:update_element(FileSummaryEts, Destination, - {#file_summary.locked, false}), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([Source, Destination], State1))); - -handle_cast({delete_file, File, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize }) -> - ok = cleanup_after_file_deletion(File, State), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([File], State1))); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State). - -handle_info(timeout, State) -> - noreply(internal_sync(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}. - -terminate(_Reason, State = #msstate { index_state = IndexState, - index_module = IndexModule, - current_file_handle = CurHdl, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - dir = Dir }) -> - %% stop the gc first, otherwise it could be working and we pull - %% out the ets tables from under it. - ok = rabbit_msg_store_gc:stop(GCPid), - State1 = case CurHdl of - undefined -> State; - _ -> State2 = internal_sync(State), - file_handle_cache:close(CurHdl), - State2 - end, - State3 = close_all_handles(State1), - store_file_summary(FileSummaryEts, Dir), - [ets:delete(T) || - T <- [FileSummaryEts, DedupCacheEts, FileHandlesEts, CurFileCacheEts]], - IndexModule:terminate(IndexState), - store_recovery_terms([{client_refs, dict:fetch_keys(Clients)}, - {index_module, IndexModule}], Dir), - State3 #msstate { index_state = undefined, - current_file_handle = undefined }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% general helper functions -%%---------------------------------------------------------------------------- - -noreply(State) -> - {State1, Timeout} = next_state(State), - {noreply, State1, Timeout}. - -reply(Reply, State) -> - {State1, Timeout} = next_state(State), - {reply, Reply, State1, Timeout}. - -next_state(State = #msstate { sync_timer_ref = undefined, - on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - case {Syncs, dict:size(CTM)} of - {[], 0} -> {State, hibernate}; - _ -> {start_sync_timer(State), 0} - end; -next_state(State = #msstate { on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - case {Syncs, dict:size(CTM)} of - {[], 0} -> {stop_sync_timer(State), hibernate}; - _ -> {State, 0} - end. - -start_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, sync, [self()]), - State #msstate { sync_timer_ref = TRef }. - -stop_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - State; -stop_sync_timer(State = #msstate { sync_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #msstate { sync_timer_ref = undefined }. - -internal_sync(State = #msstate { current_file_handle = CurHdl, - on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - State1 = stop_sync_timer(State), - CGs = dict:fold(fun (CRef, MsgIds, NS) -> - case gb_sets:is_empty(MsgIds) of - true -> NS; - false -> [{CRef, MsgIds} | NS] - end - end, [], CTM), - case {Syncs, CGs} of - {[], []} -> ok; - _ -> file_handle_cache:sync(CurHdl) - end, - [K() || K <- lists:reverse(Syncs)], - [client_confirm(CRef, MsgIds, written, State1) || {CRef, MsgIds} <- CGs], - State1 #msstate { cref_to_msg_ids = dict:new(), on_sync = [] }. - -write_action({true, not_found}, _MsgId, State) -> - {ignore, undefined, State}; -write_action({true, #msg_location { file = File }}, _MsgId, State) -> - {ignore, File, State}; -write_action({false, not_found}, _MsgId, State) -> - {write, State}; -write_action({Mask, #msg_location { ref_count = 0, file = File, - total_size = TotalSize }}, - MsgId, State = #msstate { file_summary_ets = FileSummaryEts }) -> - case {Mask, ets:lookup(FileSummaryEts, File)} of - {false, [#file_summary { locked = true }]} -> - ok = index_delete(MsgId, State), - {write, State}; - {false_if_increment, [#file_summary { locked = true }]} -> - %% The msg for MsgId is older than the client death - %% message, but as it is being GC'd currently we'll have - %% to write a new copy, which will then be younger, so - %% ignore this write. - {ignore, File, State}; - {_Mask, [#file_summary {}]} -> - ok = index_update_ref_count(MsgId, 1, State), - State1 = adjust_valid_total_size(File, TotalSize, State), - {confirm, File, State1} - end; -write_action({_Mask, #msg_location { ref_count = RefCount, file = File }}, - MsgId, State) -> - ok = index_update_ref_count(MsgId, RefCount + 1, State), - %% We already know about it, just update counter. Only update - %% field otherwise bad interaction with concurrent GC - {confirm, File, State}. - -write_message(CRef, MsgId, Msg, State) -> - write_message(MsgId, Msg, record_pending_confirm(CRef, MsgId, State)). - -write_message(MsgId, Msg, - State = #msstate { current_file_handle = CurHdl, - current_file = CurFile, - sum_valid_data = SumValid, - sum_file_size = SumFileSize, - file_summary_ets = FileSummaryEts }) -> - {ok, CurOffset} = file_handle_cache:current_virtual_offset(CurHdl), - {ok, TotalSize} = rabbit_msg_file:append(CurHdl, MsgId, Msg), - ok = index_insert( - #msg_location { msg_id = MsgId, ref_count = 1, file = CurFile, - offset = CurOffset, total_size = TotalSize }, State), - [#file_summary { right = undefined, locked = false }] = - ets:lookup(FileSummaryEts, CurFile), - [_,_] = ets:update_counter(FileSummaryEts, CurFile, - [{#file_summary.valid_total_size, TotalSize}, - {#file_summary.file_size, TotalSize}]), - maybe_roll_to_new_file(CurOffset + TotalSize, - State #msstate { - sum_valid_data = SumValid + TotalSize, - sum_file_size = SumFileSize + TotalSize }). - -read_message(MsgId, From, - State = #msstate { dedup_cache_ets = DedupCacheEts }) -> - case index_lookup_positive_ref_count(MsgId, State) of - not_found -> - gen_server2:reply(From, not_found), - State; - MsgLocation -> - case fetch_and_increment_cache(DedupCacheEts, MsgId) of - not_found -> read_message1(From, MsgLocation, State); - Msg -> gen_server2:reply(From, {ok, Msg}), - State - end - end. - -read_message1(From, #msg_location { msg_id = MsgId, ref_count = RefCount, - file = File, offset = Offset } = MsgLoc, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts, - cur_file_cache_ets = CurFileCacheEts }) -> - case File =:= CurFile of - true -> {Msg, State1} = - %% can return [] if msg in file existed on startup - case ets:lookup(CurFileCacheEts, MsgId) of - [] -> - {ok, RawOffSet} = - file_handle_cache:current_raw_offset(CurHdl), - ok = case Offset >= RawOffSet of - true -> file_handle_cache:flush(CurHdl); - false -> ok - end, - read_from_disk(MsgLoc, State, DedupCacheEts); - [{MsgId, Msg1, _CacheRefCount}] -> - ok = maybe_insert_into_cache( - DedupCacheEts, RefCount, MsgId, Msg1), - {Msg1, State} - end, - gen_server2:reply(From, {ok, Msg}), - State1; - false -> [#file_summary { locked = Locked }] = - ets:lookup(FileSummaryEts, File), - case Locked of - true -> add_to_pending_gc_completion({read, MsgId, From}, - File, State); - false -> {Msg, State1} = - read_from_disk(MsgLoc, State, DedupCacheEts), - gen_server2:reply(From, {ok, Msg}), - State1 - end - end. - -read_from_disk(#msg_location { msg_id = MsgId, ref_count = RefCount, - file = File, offset = Offset, - total_size = TotalSize }, - State, DedupCacheEts) -> - {Hdl, State1} = get_read_handle(File, State), - {ok, Offset} = file_handle_cache:position(Hdl, Offset), - {ok, {MsgId, Msg}} = - case rabbit_msg_file:read(Hdl, TotalSize) of - {ok, {MsgId, _}} = Obj -> - Obj; - Rest -> - {error, {misread, [{old_state, State}, - {file_num, File}, - {offset, Offset}, - {msg_id, MsgId}, - {read, Rest}, - {proc_dict, get()} - ]}} - end, - ok = maybe_insert_into_cache(DedupCacheEts, RefCount, MsgId, Msg), - {Msg, State1}. - -contains_message(MsgId, From, - State = #msstate { pending_gc_completion = Pending }) -> - case index_lookup_positive_ref_count(MsgId, State) of - not_found -> - gen_server2:reply(From, false), - State; - #msg_location { file = File } -> - case orddict:is_key(File, Pending) of - true -> add_to_pending_gc_completion( - {contains, MsgId, From}, File, State); - false -> gen_server2:reply(From, true), - State - end - end. - -remove_message(MsgId, CRef, - State = #msstate { file_summary_ets = FileSummaryEts, - dedup_cache_ets = DedupCacheEts }) -> - case should_mask_action(CRef, MsgId, State) of - {true, _Location} -> - State; - {false_if_increment, #msg_location { ref_count = 0 }} -> - %% CRef has tried to both write and remove this msg - %% whilst it's being GC'd. ASSERTION: - %% [#file_summary { locked = true }] = - %% ets:lookup(FileSummaryEts, File), - State; - {_Mask, #msg_location { ref_count = RefCount, file = File, - total_size = TotalSize }} when RefCount > 0 -> - %% only update field, otherwise bad interaction with - %% concurrent GC - Dec = fun () -> - index_update_ref_count(MsgId, RefCount - 1, State) - end, - case RefCount of - %% don't remove from CUR_FILE_CACHE_ETS_NAME here - %% because there may be further writes in the mailbox - %% for the same msg. - 1 -> ok = remove_cache_entry(DedupCacheEts, MsgId), - case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - add_to_pending_gc_completion( - {remove, MsgId, CRef}, File, State); - [#file_summary {}] -> - ok = Dec(), - delete_file_if_empty( - File, adjust_valid_total_size(File, -TotalSize, - State)) - end; - _ -> ok = decrement_cache(DedupCacheEts, MsgId), - ok = Dec(), - State - end - end. - -add_to_pending_gc_completion( - Op, File, State = #msstate { pending_gc_completion = Pending }) -> - State #msstate { pending_gc_completion = - rabbit_misc:orddict_cons(File, Op, Pending) }. - -run_pending(Files, State) -> - lists:foldl( - fun (File, State1 = #msstate { pending_gc_completion = Pending }) -> - Pending1 = orddict:erase(File, Pending), - lists:foldl( - fun run_pending_action/2, - State1 #msstate { pending_gc_completion = Pending1 }, - lists:reverse(orddict:fetch(File, Pending))) - end, State, Files). - -run_pending_action({read, MsgId, From}, State) -> - read_message(MsgId, From, State); -run_pending_action({contains, MsgId, From}, State) -> - contains_message(MsgId, From, State); -run_pending_action({remove, MsgId, CRef}, State) -> - remove_message(MsgId, CRef, State). - -safe_ets_update_counter(Tab, Key, UpdateOp, SuccessFun, FailThunk) -> - try - SuccessFun(ets:update_counter(Tab, Key, UpdateOp)) - catch error:badarg -> FailThunk() - end. - -safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> - safe_ets_update_counter(Tab, Key, UpdateOp, fun (_) -> ok end, FailThunk). - -adjust_valid_total_size(File, Delta, State = #msstate { - sum_valid_data = SumValid, - file_summary_ets = FileSummaryEts }) -> - [_] = ets:update_counter(FileSummaryEts, File, - [{#file_summary.valid_total_size, Delta}]), - State #msstate { sum_valid_data = SumValid + Delta }. - -orddict_store(Key, Val, Dict) -> - false = orddict:is_key(Key, Dict), - orddict:store(Key, Val, Dict). - -update_pending_confirms(Fun, CRef, - State = #msstate { clients = Clients, - cref_to_msg_ids = CTM }) -> - case dict:fetch(CRef, Clients) of - {undefined, _CloseFDsFun} -> State; - {MsgOnDiskFun, _CloseFDsFun} -> CTM1 = Fun(MsgOnDiskFun, CTM), - State #msstate { - cref_to_msg_ids = CTM1 } - end. - -record_pending_confirm(CRef, MsgId, State) -> - update_pending_confirms( - fun (_MsgOnDiskFun, CTM) -> - dict:update(CRef, fun (MsgIds) -> gb_sets:add(MsgId, MsgIds) end, - gb_sets:singleton(MsgId), CTM) - end, CRef, State). - -client_confirm(CRef, MsgIds, ActionTaken, State) -> - update_pending_confirms( - fun (MsgOnDiskFun, CTM) -> - MsgOnDiskFun(MsgIds, ActionTaken), - case dict:find(CRef, CTM) of - {ok, Gs} -> MsgIds1 = gb_sets:difference(Gs, MsgIds), - case gb_sets:is_empty(MsgIds1) of - true -> dict:erase(CRef, CTM); - false -> dict:store(CRef, MsgIds1, CTM) - end; - error -> CTM - end - end, CRef, State). - -%% Detect whether the MsgId is older or younger than the client's death -%% msg (if there is one). If the msg is older than the client death -%% msg, and it has a 0 ref_count we must only alter the ref_count, not -%% rewrite the msg - rewriting it would make it younger than the death -%% msg and thus should be ignored. Note that this (correctly) returns -%% false when testing to remove the death msg itself. -should_mask_action(CRef, MsgId, - State = #msstate { dying_clients = DyingClients }) -> - case {sets:is_element(CRef, DyingClients), index_lookup(MsgId, State)} of - {false, Location} -> - {false, Location}; - {true, not_found} -> - {true, not_found}; - {true, #msg_location { file = File, offset = Offset, - ref_count = RefCount } = Location} -> - #msg_location { file = DeathFile, offset = DeathOffset } = - index_lookup(CRef, State), - {case {{DeathFile, DeathOffset} < {File, Offset}, RefCount} of - {true, _} -> true; - {false, 0} -> false_if_increment; - {false, _} -> false - end, Location} - end. - -%%---------------------------------------------------------------------------- -%% file helper functions -%%---------------------------------------------------------------------------- - -open_file(Dir, FileName, Mode) -> - file_handle_cache:open(form_filename(Dir, FileName), ?BINARY_MODE ++ Mode, - [{write_buffer, ?HANDLE_CACHE_BUFFER_SIZE}]). - -close_handle(Key, CState = #client_msstate { file_handle_cache = FHC }) -> - CState #client_msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, State = #msstate { file_handle_cache = FHC }) -> - State #msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, FHC) -> - case dict:find(Key, FHC) of - {ok, Hdl} -> ok = file_handle_cache:close(Hdl), - dict:erase(Key, FHC); - error -> FHC - end. - -mark_handle_open(FileHandlesEts, File, Ref) -> - %% This is fine to fail (already exists). Note it could fail with - %% the value being close, and not have it updated to open. - ets:insert_new(FileHandlesEts, {{Ref, File}, open}), - true. - -%% See comment in client_read3 - only call this when the file is locked -mark_handle_to_close(ClientRefs, FileHandlesEts, File, Invoke) -> - [ begin - case (ets:update_element(FileHandlesEts, Key, {2, close}) - andalso Invoke) of - true -> case dict:fetch(Ref, ClientRefs) of - {_MsgOnDiskFun, undefined} -> ok; - {_MsgOnDiskFun, CloseFDsFun} -> ok = CloseFDsFun() - end; - false -> ok - end - end || {{Ref, _File} = Key, open} <- - ets:match_object(FileHandlesEts, {{'_', File}, open}) ], - true. - -safe_file_delete_fun(File, Dir, FileHandlesEts) -> - fun () -> safe_file_delete(File, Dir, FileHandlesEts) end. - -safe_file_delete(File, Dir, FileHandlesEts) -> - %% do not match on any value - it's the absence of the row that - %% indicates the client has really closed the file. - case ets:match_object(FileHandlesEts, {{'_', File}, '_'}, 1) of - {[_|_], _Cont} -> false; - _ -> ok = file:delete( - form_filename(Dir, filenum_to_name(File))), - true - end. - -close_all_indicated(#client_msstate { file_handles_ets = FileHandlesEts, - client_ref = Ref } = - CState) -> - Objs = ets:match_object(FileHandlesEts, {{Ref, '_'}, close}), - {ok, lists:foldl(fun ({Key = {_Ref, File}, close}, CStateM) -> - true = ets:delete(FileHandlesEts, Key), - close_handle(File, CStateM) - end, CState, Objs)}. - -close_all_handles(CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_handle_cache = FHC, - client_ref = Ref }) -> - ok = dict:fold(fun (File, Hdl, ok) -> - true = ets:delete(FileHandlesEts, {Ref, File}), - file_handle_cache:close(Hdl) - end, ok, FHC), - CState #client_msstate { file_handle_cache = dict:new() }; - -close_all_handles(State = #msstate { file_handle_cache = FHC }) -> - ok = dict:fold(fun (_Key, Hdl, ok) -> file_handle_cache:close(Hdl) end, - ok, FHC), - State #msstate { file_handle_cache = dict:new() }. - -get_read_handle(FileNum, CState = #client_msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, CState #client_msstate { file_handle_cache = FHC2 }}; - -get_read_handle(FileNum, State = #msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, State #msstate { file_handle_cache = FHC2 }}. - -get_read_handle(FileNum, FHC, Dir) -> - case dict:find(FileNum, FHC) of - {ok, Hdl} -> {Hdl, FHC}; - error -> {ok, Hdl} = open_file(Dir, filenum_to_name(FileNum), - ?READ_MODE), - {Hdl, dict:store(FileNum, Hdl, FHC)} - end. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file_handle_cache:position(Hdl, FileSizeLimit), - ok = file_handle_cache:truncate(Hdl), - {ok, FinalPos} = file_handle_cache:position(Hdl, FinalPos), - ok. - -truncate_and_extend_file(Hdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file_handle_cache:position(Hdl, Lowpoint), - ok = file_handle_cache:truncate(Hdl), - ok = preallocate(Hdl, Highpoint, Lowpoint). - -form_filename(Dir, Name) -> filename:join(Dir, Name). - -filenum_to_name(File) -> integer_to_list(File) ++ ?FILE_EXTENSION. - -filename_to_num(FileName) -> list_to_integer(filename:rootname(FileName)). - -list_sorted_file_names(Dir, Ext) -> - lists:sort(fun (A, B) -> filename_to_num(A) < filename_to_num(B) end, - filelib:wildcard("*" ++ Ext, Dir)). - -%%---------------------------------------------------------------------------- -%% message cache helper functions -%%---------------------------------------------------------------------------- - -maybe_insert_into_cache(DedupCacheEts, RefCount, MsgId, Msg) - when RefCount > 1 -> - update_msg_cache(DedupCacheEts, MsgId, Msg); -maybe_insert_into_cache(_DedupCacheEts, _RefCount, _MsgId, _Msg) -> - ok. - -update_msg_cache(CacheEts, MsgId, Msg) -> - case ets:insert_new(CacheEts, {MsgId, Msg, 1}) of - true -> ok; - false -> safe_ets_update_counter_ok( - CacheEts, MsgId, {3, +1}, - fun () -> update_msg_cache(CacheEts, MsgId, Msg) end) - end. - -remove_cache_entry(DedupCacheEts, MsgId) -> - true = ets:delete(DedupCacheEts, MsgId), - ok. - -fetch_and_increment_cache(DedupCacheEts, MsgId) -> - case ets:lookup(DedupCacheEts, MsgId) of - [] -> - not_found; - [{_MsgId, Msg, _RefCount}] -> - safe_ets_update_counter_ok( - DedupCacheEts, MsgId, {3, +1}, - %% someone has deleted us in the meantime, insert us - fun () -> ok = update_msg_cache(DedupCacheEts, MsgId, Msg) end), - Msg - end. - -decrement_cache(DedupCacheEts, MsgId) -> - true = safe_ets_update_counter( - DedupCacheEts, MsgId, {3, -1}, - fun (N) when N =< 0 -> true = ets:delete(DedupCacheEts, MsgId); - (_N) -> true - end, - %% MsgId is not in there because although it's been - %% delivered, it's never actually been read (think: - %% persistent message held in RAM) - fun () -> true end), - ok. - -%%---------------------------------------------------------------------------- -%% index -%%---------------------------------------------------------------------------- - -index_lookup_positive_ref_count(Key, State) -> - case index_lookup(Key, State) of - not_found -> not_found; - #msg_location { ref_count = 0 } -> not_found; - #msg_location {} = MsgLocation -> MsgLocation - end. - -index_update_ref_count(Key, RefCount, State) -> - index_update_fields(Key, {#msg_location.ref_count, RefCount}, State). - -index_lookup(Key, #client_msstate { index_module = Index, - index_state = State }) -> - Index:lookup(Key, State); - -index_lookup(Key, #msstate { index_module = Index, index_state = State }) -> - Index:lookup(Key, State). - -index_insert(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:insert(Obj, State). - -index_update(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:update(Obj, State). - -index_update_fields(Key, Updates, #msstate { index_module = Index, - index_state = State }) -> - Index:update_fields(Key, Updates, State). - -index_delete(Key, #msstate { index_module = Index, index_state = State }) -> - Index:delete(Key, State). - -index_delete_by_file(File, #msstate { index_module = Index, - index_state = State }) -> - Index:delete_by_file(File, State). - -%%---------------------------------------------------------------------------- -%% shutdown and recovery -%%---------------------------------------------------------------------------- - -recover_index_and_client_refs(IndexModule, _Recover, undefined, Dir, _Server) -> - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, false, _ClientRefs, Dir, Server) -> - rabbit_log:warning("~w: rebuilding indices from scratch~n", [Server]), - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, true, ClientRefs, Dir, Server) -> - Fresh = fun (ErrorMsg, ErrorArgs) -> - rabbit_log:warning("~w: " ++ ErrorMsg ++ "~n" - "rebuilding indices from scratch~n", - [Server | ErrorArgs]), - {false, IndexModule:new(Dir), []} - end, - case read_recovery_terms(Dir) of - {false, Error} -> - Fresh("failed to read recovery terms: ~p", [Error]); - {true, Terms} -> - RecClientRefs = proplists:get_value(client_refs, Terms, []), - RecIndexModule = proplists:get_value(index_module, Terms), - case (lists:sort(ClientRefs) =:= lists:sort(RecClientRefs) - andalso IndexModule =:= RecIndexModule) of - true -> case IndexModule:recover(Dir) of - {ok, IndexState1} -> - {true, IndexState1, ClientRefs}; - {error, Error} -> - Fresh("failed to recover index: ~p", [Error]) - end; - false -> Fresh("recovery terms differ from present", []) - end - end. - -store_recovery_terms(Terms, Dir) -> - rabbit_misc:write_term_file(filename:join(Dir, ?CLEAN_FILENAME), Terms). - -read_recovery_terms(Dir) -> - Path = filename:join(Dir, ?CLEAN_FILENAME), - case rabbit_misc:read_term_file(Path) of - {ok, Terms} -> case file:delete(Path) of - ok -> {true, Terms}; - {error, Error} -> {false, Error} - end; - {error, Error} -> {false, Error} - end. - -store_file_summary(Tid, Dir) -> - ok = ets:tab2file(Tid, filename:join(Dir, ?FILE_SUMMARY_FILENAME), - [{extended_info, [object_count]}]). - -recover_file_summary(false, _Dir) -> - %% TODO: the only reason for this to be an *ordered*_set is so - %% that a) maybe_compact can start a traversal from the eldest - %% file, and b) build_index in fast recovery mode can easily - %% identify the current file. It's awkward to have both that - %% odering and the left/right pointers in the entries - replacing - %% the former with some additional bit of state would be easy, but - %% ditching the latter would be neater. - {false, ets:new(rabbit_msg_store_file_summary, - [ordered_set, public, {keypos, #file_summary.file}])}; -recover_file_summary(true, Dir) -> - Path = filename:join(Dir, ?FILE_SUMMARY_FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> file:delete(Path), - {true, Tid}; - {error, _Error} -> recover_file_summary(false, Dir) - end. - -count_msg_refs(Gen, Seed, State) -> - case Gen(Seed) of - finished -> - ok; - {_MsgId, 0, Next} -> - count_msg_refs(Gen, Next, State); - {MsgId, Delta, Next} -> - ok = case index_lookup(MsgId, State) of - not_found -> - index_insert(#msg_location { msg_id = MsgId, - file = undefined, - ref_count = Delta }, - State); - #msg_location { ref_count = RefCount } = StoreEntry -> - NewRefCount = RefCount + Delta, - case NewRefCount of - 0 -> index_delete(MsgId, State); - _ -> index_update(StoreEntry #msg_location { - ref_count = NewRefCount }, - State) - end - end, - count_msg_refs(Gen, Next, State) - end. - -recover_crashed_compactions(Dir) -> - FileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION), - TmpFileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION_TMP), - lists:foreach( - fun (TmpFileName) -> - NonTmpRelatedFileName = - filename:rootname(TmpFileName) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFileName, FileNames), - ok = recover_crashed_compaction( - Dir, TmpFileName, NonTmpRelatedFileName) - end, TmpFileNames), - TmpFileNames == []. - -recover_crashed_compaction(Dir, TmpFileName, NonTmpRelatedFileName) -> - %% Because a msg can legitimately appear multiple times in the - %% same file, identifying the contents of the tmp file and where - %% they came from is non-trivial. If we are recovering a crashed - %% compaction then we will be rebuilding the index, which can cope - %% with duplicates appearing. Thus the simplest and safest thing - %% to do is to append the contents of the tmp file to its main - %% file. - {ok, TmpHdl} = open_file(Dir, TmpFileName, ?READ_MODE), - {ok, MainHdl} = open_file(Dir, NonTmpRelatedFileName, - ?READ_MODE ++ ?WRITE_MODE), - {ok, _End} = file_handle_cache:position(MainHdl, eof), - Size = filelib:file_size(form_filename(Dir, TmpFileName)), - {ok, Size} = file_handle_cache:copy(TmpHdl, MainHdl, Size), - ok = file_handle_cache:close(MainHdl), - ok = file_handle_cache:delete(TmpHdl), - ok. - -scan_file_for_valid_messages(Dir, FileName) -> - case open_file(Dir, FileName, ?READ_MODE) of - {ok, Hdl} -> Valid = rabbit_msg_file:scan( - Hdl, filelib:file_size( - form_filename(Dir, FileName)), - fun scan_fun/2, []), - %% if something really bad has happened, - %% the close could fail, but ignore - file_handle_cache:close(Hdl), - Valid; - {error, enoent} -> {ok, [], 0}; - {error, Reason} -> {error, {unable_to_scan_file, FileName, Reason}} - end. - -scan_fun({MsgId, TotalSize, Offset, _Msg}, Acc) -> - [{MsgId, TotalSize, Offset} | Acc]. - -%% Takes the list in *ascending* order (i.e. eldest message -%% first). This is the opposite of what scan_file_for_valid_messages -%% produces. The list of msgs that is produced is youngest first. -drop_contiguous_block_prefix(L) -> drop_contiguous_block_prefix(L, 0). - -drop_contiguous_block_prefix([], ExpectedOffset) -> - {ExpectedOffset, []}; -drop_contiguous_block_prefix([#msg_location { offset = ExpectedOffset, - total_size = TotalSize } | Tail], - ExpectedOffset) -> - ExpectedOffset1 = ExpectedOffset + TotalSize, - drop_contiguous_block_prefix(Tail, ExpectedOffset1); -drop_contiguous_block_prefix(MsgsAfterGap, ExpectedOffset) -> - {ExpectedOffset, MsgsAfterGap}. - -build_index(true, _StartupFunState, - State = #msstate { file_summary_ets = FileSummaryEts }) -> - ets:foldl( - fun (#file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize, - file = File }, - {_Offset, State1 = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize }}) -> - {FileSize, State1 #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize, - current_file = File }} - end, {0, State}, FileSummaryEts); -build_index(false, {MsgRefDeltaGen, MsgRefDeltaGenInit}, - State = #msstate { dir = Dir }) -> - ok = count_msg_refs(MsgRefDeltaGen, MsgRefDeltaGenInit, State), - {ok, Pid} = gatherer:start_link(), - case [filename_to_num(FileName) || - FileName <- list_sorted_file_names(Dir, ?FILE_EXTENSION)] of - [] -> build_index(Pid, undefined, [State #msstate.current_file], - State); - Files -> {Offset, State1} = build_index(Pid, undefined, Files, State), - {Offset, lists:foldl(fun delete_file_if_empty/2, - State1, Files)} - end. - -build_index(Gatherer, Left, [], - State = #msstate { file_summary_ets = FileSummaryEts, - sum_valid_data = SumValid, - sum_file_size = SumFileSize }) -> - case gatherer:out(Gatherer) of - empty -> - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer), - ok = index_delete_by_file(undefined, State), - Offset = case ets:lookup(FileSummaryEts, Left) of - [] -> 0; - [#file_summary { file_size = FileSize }] -> FileSize - end, - {Offset, State #msstate { current_file = Left }}; - {value, #file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize } = FileSummary} -> - true = ets:insert_new(FileSummaryEts, FileSummary), - build_index(Gatherer, Left, [], - State #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize }) - end; -build_index(Gatherer, Left, [File|Files], State) -> - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> build_index_worker(Gatherer, State, - Left, File, Files) - end), - build_index(Gatherer, File, Files, State). - -build_index_worker(Gatherer, State = #msstate { dir = Dir }, - Left, File, Files) -> - {ok, Messages, FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - {ValidMessages, ValidTotalSize} = - lists:foldl( - fun (Obj = {MsgId, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case index_lookup(MsgId, State) of - #msg_location { file = undefined } = StoreEntry -> - ok = index_update(StoreEntry #msg_location { - file = File, offset = Offset, - total_size = TotalSize }, - State), - {[Obj | VMAcc], VTSAcc + TotalSize}; - _ -> - {VMAcc, VTSAcc} - end - end, {[], 0}, Messages), - {Right, FileSize1} = - case Files of - %% if it's the last file, we'll truncate to remove any - %% rubbish above the last valid message. This affects the - %% file size. - [] -> {undefined, case ValidMessages of - [] -> 0; - _ -> {_MsgId, TotalSize, Offset} = - lists:last(ValidMessages), - Offset + TotalSize - end}; - [F|_] -> {F, FileSize} - end, - ok = gatherer:in(Gatherer, #file_summary { - file = File, - valid_total_size = ValidTotalSize, - left = Left, - right = Right, - file_size = FileSize1, - locked = false, - readers = 0 }), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- internal -%%---------------------------------------------------------------------------- - -maybe_roll_to_new_file( - Offset, - State = #msstate { dir = Dir, - current_file_handle = CurHdl, - current_file = CurFile, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - file_size_limit = FileSizeLimit }) - when Offset >= FileSizeLimit -> - State1 = internal_sync(State), - ok = file_handle_cache:close(CurHdl), - NextFile = CurFile + 1, - {ok, NextHdl} = open_file(Dir, filenum_to_name(NextFile), ?WRITE_MODE), - true = ets:insert_new(FileSummaryEts, #file_summary { - file = NextFile, - valid_total_size = 0, - left = CurFile, - right = undefined, - file_size = 0, - locked = false, - readers = 0 }), - true = ets:update_element(FileSummaryEts, CurFile, - {#file_summary.right, NextFile}), - true = ets:match_delete(CurFileCacheEts, {'_', '_', 0}), - maybe_compact(State1 #msstate { current_file_handle = NextHdl, - current_file = NextFile }); -maybe_roll_to_new_file(_, State) -> - State. - -maybe_compact(State = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize, - gc_pid = GCPid, - pending_gc_completion = Pending, - file_summary_ets = FileSummaryEts, - file_size_limit = FileSizeLimit }) - when SumFileSize > 2 * FileSizeLimit andalso - (SumFileSize - SumValid) / SumFileSize > ?GARBAGE_FRACTION -> - %% TODO: the algorithm here is sub-optimal - it may result in a - %% complete traversal of FileSummaryEts. - case ets:first(FileSummaryEts) of - '$end_of_table' -> - State; - First -> - case find_files_to_combine(FileSummaryEts, FileSizeLimit, - ets:lookup(FileSummaryEts, First)) of - not_found -> - State; - {Src, Dst} -> - Pending1 = orddict_store(Dst, [], - orddict_store(Src, [], Pending)), - State1 = close_handle(Src, close_handle(Dst, State)), - true = ets:update_element(FileSummaryEts, Src, - {#file_summary.locked, true}), - true = ets:update_element(FileSummaryEts, Dst, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:combine(GCPid, Src, Dst), - State1 #msstate { pending_gc_completion = Pending1 } - end - end; -maybe_compact(State) -> - State. - -find_files_to_combine(FileSummaryEts, FileSizeLimit, - [#file_summary { file = Dst, - valid_total_size = DstValid, - right = Src, - locked = DstLocked }]) -> - case Src of - undefined -> - not_found; - _ -> - [#file_summary { file = Src, - valid_total_size = SrcValid, - left = Dst, - right = SrcRight, - locked = SrcLocked }] = Next = - ets:lookup(FileSummaryEts, Src), - case SrcRight of - undefined -> not_found; - _ -> case (DstValid + SrcValid =< FileSizeLimit) andalso - (DstValid > 0) andalso (SrcValid > 0) andalso - not (DstLocked orelse SrcLocked) of - true -> {Src, Dst}; - false -> find_files_to_combine( - FileSummaryEts, FileSizeLimit, Next) - end - end - end. - -delete_file_if_empty(File, State = #msstate { current_file = File }) -> - State; -delete_file_if_empty(File, State = #msstate { - gc_pid = GCPid, - file_summary_ets = FileSummaryEts, - pending_gc_completion = Pending }) -> - [#file_summary { valid_total_size = ValidData, - locked = false }] = - ets:lookup(FileSummaryEts, File), - case ValidData of - %% don't delete the file_summary_ets entry for File here - %% because we could have readers which need to be able to - %% decrement the readers count. - 0 -> true = ets:update_element(FileSummaryEts, File, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:delete(GCPid, File), - Pending1 = orddict_store(File, [], Pending), - close_handle(File, - State #msstate { pending_gc_completion = Pending1 }); - _ -> State - end. - -cleanup_after_file_deletion(File, - #msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - %% Ensure that any clients that have open fhs to the file close - %% them before using them again. This has to be done here (given - %% it's done in the msg_store, and not the gc), and not when - %% starting up the GC, because if done when starting up the GC, - %% the client could find the close, and close and reopen the fh, - %% whilst the GC is waiting for readers to disappear, before it's - %% actually done the GC. - true = mark_handle_to_close(Clients, FileHandlesEts, File, true), - [#file_summary { left = Left, - right = Right, - locked = true, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - %% We'll never delete the current file, so right is never undefined - true = Right =/= undefined, %% ASSERTION - true = ets:update_element(FileSummaryEts, Right, - {#file_summary.left, Left}), - %% ensure the double linked list is maintained - true = case Left of - undefined -> true; %% File is the eldest file (left-most) - _ -> ets:update_element(FileSummaryEts, Left, - {#file_summary.right, Right}) - end, - true = ets:delete(FileSummaryEts, File), - ok. - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- external -%%---------------------------------------------------------------------------- - -has_readers(File, #gc_state { file_summary_ets = FileSummaryEts }) -> - [#file_summary { locked = true, readers = Count }] = - ets:lookup(FileSummaryEts, File), - Count /= 0. - -combine_files(Source, Destination, - State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { - readers = 0, - left = Destination, - valid_total_size = SourceValid, - file_size = SourceFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Source), - [#file_summary { - readers = 0, - right = Source, - valid_total_size = DestinationValid, - file_size = DestinationFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Destination), - - SourceName = filenum_to_name(Source), - DestinationName = filenum_to_name(Destination), - {ok, SourceHdl} = open_file(Dir, SourceName, - ?READ_AHEAD_MODE), - {ok, DestinationHdl} = open_file(Dir, DestinationName, - ?READ_AHEAD_MODE ++ ?WRITE_MODE), - TotalValidData = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - {DestinationWorkList, DestinationValid} = - load_and_vacuum_message_file(Destination, State), - {DestinationContiguousTop, DestinationWorkListTail} = - drop_contiguous_block_prefix(DestinationWorkList), - case DestinationWorkListTail of - [] -> ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData); - _ -> Tmp = filename:rootname(DestinationName) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = open_file(Dir, Tmp, ?READ_AHEAD_MODE++?WRITE_MODE), - ok = copy_messages( - DestinationWorkListTail, DestinationContiguousTop, - DestinationValid, DestinationHdl, TmpHdl, Destination, - State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage - %% from Destination, and index_state has been updated to - %% reflect the compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file_handle_cache:position(TmpHdl, 0), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData), - {ok, TmpSize} = - file_handle_cache:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file_handle_cache:sync(DestinationHdl), - ok = file_handle_cache:delete(TmpHdl) - end, - {SourceWorkList, SourceValid} = load_and_vacuum_message_file(Source, State), - ok = copy_messages(SourceWorkList, DestinationValid, TotalValidData, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file_handle_cache:close(DestinationHdl), - ok = file_handle_cache:close(SourceHdl), - - %% don't update dest.right, because it could be changing at the - %% same time - true = ets:update_element( - FileSummaryEts, Destination, - [{#file_summary.valid_total_size, TotalValidData}, - {#file_summary.file_size, TotalValidData}]), - - Reclaimed = SourceFileSize + DestinationFileSize - TotalValidData, - gen_server2:cast(Server, {combine_files, Source, Destination, Reclaimed}), - safe_file_delete_fun(Source, Dir, FileHandlesEts). - -delete_file(File, State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { valid_total_size = 0, - locked = true, - file_size = FileSize, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - {[], 0} = load_and_vacuum_message_file(File, State), - gen_server2:cast(Server, {delete_file, File, FileSize}), - safe_file_delete_fun(File, Dir, FileHandlesEts). - -load_and_vacuum_message_file(File, #gc_state { dir = Dir, - index_module = Index, - index_state = IndexState }) -> - %% Messages here will be end-of-file at start-of-list - {ok, Messages, _FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - %% foldl will reverse so will end up with msgs in ascending offset order - lists:foldl( - fun ({MsgId, TotalSize, Offset}, Acc = {List, Size}) -> - case Index:lookup(MsgId, IndexState) of - #msg_location { file = File, total_size = TotalSize, - offset = Offset, ref_count = 0 } = Entry -> - ok = Index:delete_object(Entry, IndexState), - Acc; - #msg_location { file = File, total_size = TotalSize, - offset = Offset } = Entry -> - {[ Entry | List ], TotalSize + Size}; - _ -> - Acc - end - end, {[], 0}, Messages). - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, #gc_state { index_module = Index, - index_state = IndexState }) -> - Copy = fun ({BlockStart, BlockEnd}) -> - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file_handle_cache:position(SourceHdl, BlockStart), - {ok, BSize} = - file_handle_cache:copy(SourceHdl, DestinationHdl, BSize) - end, - case - lists:foldl( - fun (#msg_location { msg_id = MsgId, offset = Offset, - total_size = TotalSize }, - {CurOffset, Block = {BlockStart, BlockEnd}}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - %% update MsgLocation to reflect change of file and offset - ok = Index:update_fields(MsgId, - [{#msg_location.file, Destination}, - {#msg_location.offset, CurOffset}], - IndexState), - {CurOffset + TotalSize, - case BlockEnd of - undefined -> - %% base case, called only for the first list elem - {Offset, Offset + TotalSize}; - Offset -> - %% extend the current block because the - %% next msg follows straight on - {BlockStart, BlockEnd + TotalSize}; - _ -> - %% found a gap, so actually do the work for - %% the previous block - Copy(Block), - {Offset, Offset + TotalSize} - end} - end, {InitOffset, {undefined, undefined}}, WorkList) of - {FinalOffset, Block} -> - case WorkList of - [] -> ok; - _ -> Copy(Block), %% do the last remaining block - ok = file_handle_cache:sync(DestinationHdl) - end; - {FinalOffsetZ, _Block} -> - {gc_error, [{expected, FinalOffset}, - {got, FinalOffsetZ}, - {destination, Destination}]} - end. - -force_recovery(BaseDir, Store) -> - Dir = filename:join(BaseDir, atom_to_list(Store)), - file:delete(filename:join(Dir, ?CLEAN_FILENAME)), - recover_crashed_compactions(BaseDir), - ok. - -foreach_file(D, Fun, Files) -> - [Fun(filename:join(D, File)) || File <- Files]. - -foreach_file(D1, D2, Fun, Files) -> - [Fun(filename:join(D1, File), filename:join(D2, File)) || File <- Files]. - -transform_dir(BaseDir, Store, TransformFun) -> - Dir = filename:join(BaseDir, atom_to_list(Store)), - TmpDir = filename:join(Dir, ?TRANSFORM_TMP), - TransformFile = fun (A, B) -> transform_msg_file(A, B, TransformFun) end, - case filelib:is_dir(TmpDir) of - true -> throw({error, transform_failed_previously}); - false -> FileList = list_sorted_file_names(Dir, ?FILE_EXTENSION), - foreach_file(Dir, TmpDir, TransformFile, FileList), - foreach_file(Dir, fun file:delete/1, FileList), - foreach_file(TmpDir, Dir, fun file:copy/2, FileList), - foreach_file(TmpDir, fun file:delete/1, FileList), - ok = file:del_dir(TmpDir) - end. - -transform_msg_file(FileOld, FileNew, TransformFun) -> - rabbit_misc:ensure_parent_dirs_exist(FileNew), - {ok, RefOld} = file_handle_cache:open(FileOld, [raw, binary, read], []), - {ok, RefNew} = file_handle_cache:open(FileNew, [raw, binary, write], - [{write_buffer, - ?HANDLE_CACHE_BUFFER_SIZE}]), - {ok, _Acc, _IgnoreSize} = - rabbit_msg_file:scan( - RefOld, filelib:file_size(FileOld), - fun({MsgId, _Size, _Offset, BinMsg}, ok) -> - {ok, MsgNew} = TransformFun(binary_to_term(BinMsg)), - {ok, _} = rabbit_msg_file:append(RefNew, MsgId, MsgNew), - ok - end, ok), - file_handle_cache:close(RefOld), - file_handle_cache:close(RefNew), - ok. diff --git a/src/rabbit_msg_store_ets_index.erl b/src/rabbit_msg_store_ets_index.erl deleted file mode 100644 index d6dc5568..00000000 --- a/src/rabbit_msg_store_ets_index.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_ets_index). - --behaviour(rabbit_msg_store_index). - --export([new/1, recover/1, - lookup/2, insert/2, update/2, update_fields/3, delete/2, - delete_object/2, delete_by_file/2, terminate/1]). - --define(MSG_LOC_NAME, rabbit_msg_store_ets_index). --define(FILENAME, "msg_store_index.ets"). - --include("rabbit_msg_store_index.hrl"). - --record(state, { table, dir }). - -new(Dir) -> - file:delete(filename:join(Dir, ?FILENAME)), - Tid = ets:new(?MSG_LOC_NAME, [set, public, {keypos, #msg_location.msg_id}]), - #state { table = Tid, dir = Dir }. - -recover(Dir) -> - Path = filename:join(Dir, ?FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> file:delete(Path), - {ok, #state { table = Tid, dir = Dir }}; - Error -> Error - end. - -lookup(Key, State) -> - case ets:lookup(State #state.table, Key) of - [] -> not_found; - [Entry] -> Entry - end. - -insert(Obj, State) -> - true = ets:insert_new(State #state.table, Obj), - ok. - -update(Obj, State) -> - true = ets:insert(State #state.table, Obj), - ok. - -update_fields(Key, Updates, State) -> - true = ets:update_element(State #state.table, Key, Updates), - ok. - -delete(Key, State) -> - true = ets:delete(State #state.table, Key), - ok. - -delete_object(Obj, State) -> - true = ets:delete_object(State #state.table, Obj), - ok. - -delete_by_file(File, State) -> - MatchHead = #msg_location { file = File, _ = '_' }, - ets:select_delete(State #state.table, [{MatchHead, [], [true]}]), - ok. - -terminate(#state { table = MsgLocations, dir = Dir }) -> - ok = ets:tab2file(MsgLocations, filename:join(Dir, ?FILENAME), - [{extended_info, [object_count]}]), - ets:delete(MsgLocations). diff --git a/src/rabbit_msg_store_gc.erl b/src/rabbit_msg_store_gc.erl deleted file mode 100644 index 77f1f04e..00000000 --- a/src/rabbit_msg_store_gc.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_gc). - --behaviour(gen_server2). - --export([start_link/1, combine/3, delete/2, no_readers/2, stop/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - --record(state, - { pending_no_readers, - on_action, - msg_store_state - }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (rabbit_msg_store:gc_state()) -> - rabbit_types:ok_pid_or_error()). --spec(combine/3 :: (pid(), rabbit_msg_store:file_num(), - rabbit_msg_store:file_num()) -> 'ok'). --spec(delete/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(no_readers/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(stop/1 :: (pid()) -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(MsgStoreState) -> - gen_server2:start_link(?MODULE, [MsgStoreState], - [{timeout, infinity}]). - -combine(Server, Source, Destination) -> - gen_server2:cast(Server, {combine, Source, Destination}). - -delete(Server, File) -> - gen_server2:cast(Server, {delete, File}). - -no_readers(Server, File) -> - gen_server2:cast(Server, {no_readers, File}). - -stop(Server) -> - gen_server2:call(Server, stop, infinity). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- - -init([MsgStoreState]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - {ok, #state { pending_no_readers = dict:new(), - on_action = [], - msg_store_state = MsgStoreState }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}. - -handle_cast({combine, Source, Destination}, State) -> - {noreply, attempt_action(combine, [Source, Destination], State), hibernate}; - -handle_cast({delete, File}, State) -> - {noreply, attempt_action(delete, [File], State), hibernate}; - -handle_cast({no_readers, File}, - State = #state { pending_no_readers = Pending }) -> - {noreply, case dict:find(File, Pending) of - error -> - State; - {ok, {Action, Files}} -> - Pending1 = dict:erase(File, Pending), - attempt_action( - Action, Files, - State #state { pending_no_readers = Pending1 }) - end, hibernate}; - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, State, hibernate}. - -handle_info(Info, State) -> - {stop, {unhandled_info, Info}, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -attempt_action(Action, Files, - State = #state { pending_no_readers = Pending, - on_action = Thunks, - msg_store_state = MsgStoreState }) -> - case [File || File <- Files, - rabbit_msg_store:has_readers(File, MsgStoreState)] of - [] -> State #state { - on_action = lists:filter( - fun (Thunk) -> not Thunk() end, - [do_action(Action, Files, MsgStoreState) | - Thunks]) }; - [File | _] -> Pending1 = dict:store(File, {Action, Files}, Pending), - State #state { pending_no_readers = Pending1 } - end. - -do_action(combine, [Source, Destination], MsgStoreState) -> - rabbit_msg_store:combine_files(Source, Destination, MsgStoreState); -do_action(delete, [File], MsgStoreState) -> - rabbit_msg_store:delete_file(File, MsgStoreState). diff --git a/src/rabbit_msg_store_index.erl b/src/rabbit_msg_store_index.erl deleted file mode 100644 index ef8b7cdf..00000000 --- a/src/rabbit_msg_store_index.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_index). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [{new, 1}, - {recover, 1}, - {lookup, 2}, - {insert, 2}, - {update, 2}, - {update_fields, 3}, - {delete, 2}, - {delete_by_file, 2}, - {terminate, 1}]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl deleted file mode 100644 index c500548a..00000000 --- a/src/rabbit_net.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_net). --include("rabbit.hrl"). - --export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - async_recv/3, port_command/2, send/2, close/1, - sockname/1, peername/1, peercert/1]). - -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([socket/0]). - --type(stat_option() :: - 'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' | - 'send_cnt' | 'send_max' | 'send_avg' | 'send_oct' | 'send_pend'). --type(ok_val_or_error(A) :: rabbit_types:ok_or_error2(A, any())). --type(ok_or_any_error() :: rabbit_types:ok_or_error(any())). --type(socket() :: port() | #ssl_socket{}). - --spec(is_ssl/1 :: (socket()) -> boolean()). --spec(ssl_info/1 :: (socket()) - -> 'nossl' | ok_val_or_error( - {atom(), {atom(), atom(), atom()}})). --spec(controlling_process/2 :: (socket(), pid()) -> ok_or_any_error()). --spec(getstat/2 :: - (socket(), [stat_option()]) - -> ok_val_or_error([{stat_option(), integer()}])). --spec(async_recv/3 :: - (socket(), integer(), timeout()) -> rabbit_types:ok(any())). --spec(port_command/2 :: (socket(), iolist()) -> 'true'). --spec(send/2 :: (socket(), binary() | iolist()) -> ok_or_any_error()). --spec(close/1 :: (socket()) -> ok_or_any_error()). --spec(sockname/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peername/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peercert/1 :: - (socket()) - -> 'nossl' | ok_val_or_error(rabbit_ssl:certificate())). - --endif. - -%%--------------------------------------------------------------------------- - --define(IS_SSL(Sock), is_record(Sock, ssl_socket)). - -is_ssl(Sock) -> ?IS_SSL(Sock). - -ssl_info(Sock) when ?IS_SSL(Sock) -> - ssl:connection_info(Sock#ssl_socket.ssl); -ssl_info(_Sock) -> - nossl. - -controlling_process(Sock, Pid) when ?IS_SSL(Sock) -> - ssl:controlling_process(Sock#ssl_socket.ssl, Pid); -controlling_process(Sock, Pid) when is_port(Sock) -> - gen_tcp:controlling_process(Sock, Pid). - -getstat(Sock, Stats) when ?IS_SSL(Sock) -> - inet:getstat(Sock#ssl_socket.tcp, Stats); -getstat(Sock, Stats) when is_port(Sock) -> - inet:getstat(Sock, Stats). - -async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> - Pid = self(), - Ref = make_ref(), - - spawn(fun () -> Pid ! {inet_async, Sock, Ref, - ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)} - end), - - {ok, Ref}; -async_recv(Sock, Length, infinity) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, -1); -async_recv(Sock, Length, Timeout) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, Timeout). - -port_command(Sock, Data) when ?IS_SSL(Sock) -> - case ssl:send(Sock#ssl_socket.ssl, Data) of - ok -> self() ! {inet_reply, Sock, ok}, - true; - {error, Reason} -> erlang:error(Reason) - end; -port_command(Sock, Data) when is_port(Sock) -> - erlang:port_command(Sock, Data). - -send(Sock, Data) when ?IS_SSL(Sock) -> ssl:send(Sock#ssl_socket.ssl, Data); -send(Sock, Data) when is_port(Sock) -> gen_tcp:send(Sock, Data). - -close(Sock) when ?IS_SSL(Sock) -> ssl:close(Sock#ssl_socket.ssl); -close(Sock) when is_port(Sock) -> gen_tcp:close(Sock). - -sockname(Sock) when ?IS_SSL(Sock) -> ssl:sockname(Sock#ssl_socket.ssl); -sockname(Sock) when is_port(Sock) -> inet:sockname(Sock). - -peername(Sock) when ?IS_SSL(Sock) -> ssl:peername(Sock#ssl_socket.ssl); -peername(Sock) when is_port(Sock) -> inet:peername(Sock). - -peercert(Sock) when ?IS_SSL(Sock) -> ssl:peercert(Sock#ssl_socket.ssl); -peercert(Sock) when is_port(Sock) -> nossl. diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl deleted file mode 100644 index 53be0190..00000000 --- a/src/rabbit_networking.erl +++ /dev/null @@ -1,394 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_networking). - --export([boot/0, start/0, start_tcp_listener/1, start_ssl_listener/2, - stop_tcp_listener/1, on_node_down/1, active_listeners/0, - node_listeners/1, connections/0, connection_info_keys/0, - connection_info/1, connection_info/2, - connection_info_all/0, connection_info_all/1, - close_connection/2]). - -%%used by TCP-based transports, e.g. STOMP adapter --export([check_tcp_listener_address/2, - ensure_ssl/0, ssl_transform_fun/1]). - --export([tcp_listener_started/3, tcp_listener_stopped/3, - start_client/1, start_ssl_client/2]). - --include("rabbit.hrl"). --include_lib("kernel/include/inet.hrl"). - --define(SSL_TIMEOUT, 5). %% seconds - --define(FIRST_TEST_BIND_PORT, 10000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([ip_port/0, hostname/0]). - --type(family() :: atom()). --type(listener_config() :: ip_port() | - {hostname(), ip_port()} | - {hostname(), ip_port(), family()}). - --spec(start/0 :: () -> 'ok'). --spec(start_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(start_ssl_listener/2 :: - (listener_config(), rabbit_types:infos()) -> 'ok'). --spec(stop_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(active_listeners/0 :: () -> [rabbit_types:listener()]). --spec(node_listeners/1 :: (node()) -> [rabbit_types:listener()]). --spec(connections/0 :: () -> [rabbit_types:connection()]). --spec(connection_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(connection_info/1 :: - (rabbit_types:connection()) -> rabbit_types:infos()). --spec(connection_info/2 :: - (rabbit_types:connection(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(connection_info_all/0 :: () -> [rabbit_types:infos()]). --spec(connection_info_all/1 :: - (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(close_connection/2 :: (pid(), string()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(check_tcp_listener_address/2 :: (atom(), listener_config()) - -> [{inet:ip_address(), ip_port(), family(), atom()}]). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - ok = start(), - ok = boot_tcp(), - ok = boot_ssl(). - -boot_tcp() -> - {ok, TcpListeners} = application:get_env(tcp_listeners), - [ok = start_tcp_listener(Listener) || Listener <- TcpListeners], - ok. - -boot_ssl() -> - case application:get_env(ssl_listeners) of - {ok, []} -> - ok; - {ok, SslListeners} -> - [start_ssl_listener(Listener, ensure_ssl()) - || Listener <- SslListeners], - ok - end. - -start() -> - {ok,_} = supervisor2:start_child( - rabbit_sup, - {rabbit_tcp_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_tcp_client_sup}, - {rabbit_connection_sup,start_link,[]}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%% inet_parse:address takes care of ip string, like "0.0.0.0" -%% inet:getaddr returns immediately for ip tuple {0,0,0,0}, -%% and runs 'inet_gethost' port process for dns lookups. -%% On Windows inet:getaddr runs dns resolver for ip string, which may fail. - -getaddr(Host, Family) -> - case inet_parse:address(Host) of - {ok, IPAddress} -> [{IPAddress, resolve_family(IPAddress, Family)}]; - {error, _} -> gethostaddr(Host, Family) - end. - -gethostaddr(Host, auto) -> - Lookups = [{Family, inet:getaddr(Host, Family)} || Family <- [inet, inet6]], - case [{IP, Family} || {Family, {ok, IP}} <- Lookups] of - [] -> host_lookup_error(Host, Lookups); - IPs -> IPs - end; - -gethostaddr(Host, Family) -> - case inet:getaddr(Host, Family) of - {ok, IPAddress} -> [{IPAddress, Family}]; - {error, Reason} -> host_lookup_error(Host, Reason) - end. - -host_lookup_error(Host, Reason) -> - error_logger:error_msg("invalid host ~p - ~p~n", [Host, Reason]), - throw({error, {invalid_host, Host, Reason}}). - -resolve_family({_,_,_,_}, auto) -> inet; -resolve_family({_,_,_,_,_,_,_,_}, auto) -> inet6; -resolve_family(IP, auto) -> throw({error, {strange_family, IP}}); -resolve_family(_, F) -> F. - -ensure_ssl() -> - ok = rabbit_misc:start_applications([crypto, public_key, ssl]), - {ok, SslOptsConfig} = application:get_env(rabbit, ssl_options), - - % unknown_ca errors are silently ignored prior to R14B unless we - % supply this verify_fun - remove when at least R14B is required - case proplists:get_value(verify, SslOptsConfig, verify_none) of - verify_none -> SslOptsConfig; - verify_peer -> [{verify_fun, fun([]) -> true; - ([_|_]) -> false - end} - | SslOptsConfig] - end. - -ssl_transform_fun(SslOpts) -> - fun (Sock) -> - case catch ssl:ssl_accept(Sock, SslOpts, ?SSL_TIMEOUT * 1000) of - {ok, SslSock} -> - rabbit_log:info("upgraded TCP connection ~p to SSL~n", - [self()]), - {ok, #ssl_socket{tcp = Sock, ssl = SslSock}}; - {error, Reason} -> - {error, {ssl_upgrade_error, Reason}}; - {'EXIT', Reason} -> - {error, {ssl_upgrade_failure, Reason}} - end - end. - -check_tcp_listener_address(NamePrefix, Port) when is_integer(Port) -> - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {"auto", Port}) -> - %% Variant to prevent lots of hacking around in bash and batch files - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {Host, Port}) -> - %% auto: determine family IPv4 / IPv6 after converting to IP address - check_tcp_listener_address(NamePrefix, {Host, Port, auto}); - -check_tcp_listener_address(NamePrefix, {Host, Port, Family0}) -> - if is_integer(Port) andalso (Port >= 0) andalso (Port =< 65535) -> ok; - true -> error_logger:error_msg("invalid port ~p - not 0..65535~n", - [Port]), - throw({error, {invalid_port, Port}}) - end, - [{IPAddress, Port, Family, - rabbit_misc:tcp_name(NamePrefix, IPAddress, Port)} || - {IPAddress, Family} <- getaddr(Host, Family0)]. - -check_tcp_listener_address_auto(NamePrefix, Port) -> - lists:append([check_tcp_listener_address(NamePrefix, Listener) || - Listener <- port_to_listeners(Port)]). - -start_tcp_listener(Listener) -> - start_listener(Listener, amqp, "TCP Listener", - {?MODULE, start_client, []}). - -start_ssl_listener(Listener, SslOpts) -> - start_listener(Listener, 'amqp/ssl', "SSL Listener", - {?MODULE, start_ssl_client, [SslOpts]}). - -start_listener(Listener, Protocol, Label, OnConnect) -> - [start_listener0(Spec, Protocol, Label, OnConnect) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -start_listener0({IPAddress, Port, Family, Name}, Protocol, Label, OnConnect) -> - {ok,_} = supervisor:start_child( - rabbit_sup, - {Name, - {tcp_listener_sup, start_link, - [IPAddress, Port, [Family | tcp_opts()], - {?MODULE, tcp_listener_started, [Protocol]}, - {?MODULE, tcp_listener_stopped, [Protocol]}, - OnConnect, Label]}, - transient, infinity, supervisor, [tcp_listener_sup]}). - -stop_tcp_listener(Listener) -> - [stop_tcp_listener0(Spec) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -stop_tcp_listener0({IPAddress, Port, _Family, Name}) -> - Name = rabbit_misc:tcp_name(rabbit_tcp_listener_sup, IPAddress, Port), - ok = supervisor:terminate_child(rabbit_sup, Name), - ok = supervisor:delete_child(rabbit_sup, Name). - -tcp_listener_started(Protocol, IPAddress, Port) -> - %% We need the ip to distinguish e.g. 0.0.0.0 and 127.0.0.1 - %% We need the host so we can distinguish multiple instances of the above - %% in a cluster. - ok = mnesia:dirty_write( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -tcp_listener_stopped(Protocol, IPAddress, Port) -> - ok = mnesia:dirty_delete_object( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -active_listeners() -> - rabbit_misc:dirty_read_all(rabbit_listener). - -node_listeners(Node) -> - mnesia:dirty_read(rabbit_listener, Node). - -on_node_down(Node) -> - ok = mnesia:dirty_delete(rabbit_listener, Node). - -start_client(Sock, SockTransform) -> - {ok, _Child, Reader} = supervisor:start_child(rabbit_tcp_client_sup, []), - ok = rabbit_net:controlling_process(Sock, Reader), - Reader ! {go, Sock, SockTransform}, - Reader. - -start_client(Sock) -> - start_client(Sock, fun (S) -> {ok, S} end). - -start_ssl_client(SslOpts, Sock) -> - start_client(Sock, ssl_transform_fun(SslOpts)). - -connections() -> - [rabbit_connection_sup:reader(ConnSup) || - Node <- rabbit_mnesia:running_clustered_nodes(), - {_, ConnSup, supervisor, _} - <- supervisor:which_children({rabbit_tcp_client_sup, Node})]. - -connection_info_keys() -> rabbit_reader:info_keys(). - -connection_info(Pid) -> rabbit_reader:info(Pid). -connection_info(Pid, Items) -> rabbit_reader:info(Pid, Items). - -connection_info_all() -> cmap(fun (Q) -> connection_info(Q) end). -connection_info_all(Items) -> cmap(fun (Q) -> connection_info(Q, Items) end). - -close_connection(Pid, Explanation) -> - case lists:member(Pid, connections()) of - true -> rabbit_reader:shutdown(Pid, Explanation); - false -> throw({error, {not_a_connection_pid, Pid}}) - end. - -%%-------------------------------------------------------------------- - -tcp_host({0,0,0,0}) -> - hostname(); - -tcp_host({0,0,0,0,0,0,0,0}) -> - hostname(); - -tcp_host(IPAddress) -> - case inet:gethostbyaddr(IPAddress) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> rabbit_misc:ntoa(IPAddress) - end. - -hostname() -> - {ok, Hostname} = inet:gethostname(), - case inet:gethostbyname(Hostname) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> Hostname - end. - -cmap(F) -> rabbit_misc:filter_exit_map(F, connections()). - -tcp_opts() -> - {ok, Opts} = application:get_env(rabbit, tcp_listen_options), - Opts. - -%%-------------------------------------------------------------------- - -%% There are three kinds of machine (for our purposes). -%% -%% * Those which treat IPv4 addresses as a special kind of IPv6 address -%% ("Single stack") -%% - Linux by default, Windows Vista and later -%% - We also treat any (hypothetical?) IPv6-only machine the same way -%% * Those which consider IPv6 and IPv4 to be completely separate things -%% ("Dual stack") -%% - OpenBSD, Windows XP / 2003, Linux if so configured -%% * Those which do not support IPv6. -%% - Ancient/weird OSes, Linux if so configured -%% -%% How to reconfigure Linux to test this: -%% Single stack (default): -%% echo 0 > /proc/sys/net/ipv6/bindv6only -%% Dual stack: -%% echo 1 > /proc/sys/net/ipv6/bindv6only -%% IPv4 only: -%% add ipv6.disable=1 to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub then -%% sudo update-grub && sudo reboot -%% -%% This matters in (and only in) the case where the sysadmin (or the -%% app descriptor) has only supplied a port and we wish to bind to -%% "all addresses". This means different things depending on whether -%% we're single or dual stack. On single stack binding to "::" -%% implicitly includes all IPv4 addresses, and subsequently attempting -%% to bind to "0.0.0.0" will fail. On dual stack, binding to "::" will -%% only bind to IPv6 addresses, and we need another listener bound to -%% "0.0.0.0" for IPv4. Finally, on IPv4-only systems we of course only -%% want to bind to "0.0.0.0". -%% -%% Unfortunately it seems there is no way to detect single vs dual stack -%% apart from attempting to bind to the port. -port_to_listeners(Port) -> - IPv4 = {"0.0.0.0", Port, inet}, - IPv6 = {"::", Port, inet6}, - case ipv6_status(?FIRST_TEST_BIND_PORT) of - single_stack -> [IPv6]; - ipv6_only -> [IPv6]; - dual_stack -> [IPv6, IPv4]; - ipv4_only -> [IPv4] - end. - -ipv6_status(TestPort) -> - IPv4 = [inet, {ip, {0,0,0,0}}], - IPv6 = [inet6, {ip, {0,0,0,0,0,0,0,0}}], - case gen_tcp:listen(TestPort, IPv6) of - {ok, LSock6} -> - case gen_tcp:listen(TestPort, IPv4) of - {ok, LSock4} -> - %% Dual stack - gen_tcp:close(LSock6), - gen_tcp:close(LSock4), - dual_stack; - %% Checking the error here would only let us - %% distinguish single stack IPv6 / IPv4 vs IPv6 only, - %% which we figure out below anyway. - {error, _} -> - gen_tcp:close(LSock6), - case gen_tcp:listen(TestPort, IPv4) of - %% Single stack - {ok, LSock4} -> gen_tcp:close(LSock4), - single_stack; - %% IPv6-only machine. Welcome to the future. - {error, eafnosupport} -> ipv6_only; - %% Dual stack machine with something already - %% on IPv4. - {error, _} -> ipv6_status(TestPort + 1) - end - end; - {error, eafnosupport} -> - %% IPv4-only machine. Welcome to the 90s. - ipv4_only; - {error, _} -> - %% Port in use - ipv6_status(TestPort + 1) - end. diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl deleted file mode 100644 index 1f30a2fc..00000000 --- a/src/rabbit_node_monitor.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_node_monitor). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([notify_cluster/0, rabbit_running_on/1]). - --define(SERVER, ?MODULE). --define(RABBIT_UP_RPC_TIMEOUT, 2000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(rabbit_running_on/1 :: (node()) -> 'ok'). --spec(notify_cluster/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -rabbit_running_on(Node) -> - gen_server:cast(rabbit_node_monitor, {rabbit_running_on, Node}). - -notify_cluster() -> - Node = node(), - Nodes = rabbit_mnesia:running_clustered_nodes() -- [Node], - %% notify other rabbits of this rabbit - case rpc:multicall(Nodes, rabbit_node_monitor, rabbit_running_on, - [Node], ?RABBIT_UP_RPC_TIMEOUT) of - {_, [] } -> ok; - {_, Bad} -> rabbit_log:info("failed to contact nodes ~p~n", [Bad]) - end, - %% register other active rabbits with this rabbit - [ rabbit_node_monitor:rabbit_running_on(N) || N <- Nodes ], - ok. - -%%-------------------------------------------------------------------- - -init([]) -> - ok = net_kernel:monitor_nodes(true), - {ok, no_state}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({rabbit_running_on, Node}, State) -> - rabbit_log:info("node ~p up~n", [Node]), - erlang:monitor(process, {rabbit, Node}), - ok = rabbit_alarm:on_node_up(Node), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({nodedown, Node}, State) -> - rabbit_log:info("node ~p down~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info({'DOWN', _MRef, process, {rabbit, Node}, _Reason}, State) -> - rabbit_log:info("node ~p lost 'rabbit'~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -%% TODO: This may turn out to be a performance hog when there are lots -%% of nodes. We really only need to execute some of these statements -%% on *one* node, rather than all of them. -handle_dead_rabbit(Node) -> - ok = rabbit_networking:on_node_down(Node), - ok = rabbit_amqqueue:on_node_down(Node), - ok = rabbit_alarm:on_node_down(Node). diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl deleted file mode 100644 index 7bb8c0ea..00000000 --- a/src/rabbit_prelaunch.erl +++ /dev/null @@ -1,276 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_prelaunch). - --export([start/0, stop/0]). - --define(BaseApps, [rabbit]). --define(ERROR_CODE, 1). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - io:format("Activating RabbitMQ plugins ...~n"), - - %% Determine our various directories - [PluginDir, UnpackedPluginDir, NodeStr] = init:get_plain_arguments(), - RootName = UnpackedPluginDir ++ "/rabbit", - - %% Unpack any .ez plugins - unpack_ez_plugins(PluginDir, UnpackedPluginDir), - - %% Build a list of required apps based on the fixed set, and any plugins - PluginApps = find_plugins(PluginDir) ++ find_plugins(UnpackedPluginDir), - RequiredApps = ?BaseApps ++ PluginApps, - - %% Build the entire set of dependencies - this will load the - %% applications along the way - AllApps = case catch sets:to_list(expand_dependencies(RequiredApps)) of - {failed_to_load_app, App, Err} -> - terminate("failed to load application ~s:~n~p", - [App, Err]); - AppList -> - AppList - end, - AppVersions = [determine_version(App) || App <- AllApps], - RabbitVersion = proplists:get_value(rabbit, AppVersions), - - %% Build the overall release descriptor - RDesc = {release, - {"rabbit", RabbitVersion}, - {erts, erlang:system_info(version)}, - AppVersions}, - - %% Write it out to $RABBITMQ_PLUGINS_EXPAND_DIR/rabbit.rel - file:write_file(RootName ++ ".rel", io_lib:format("~p.~n", [RDesc])), - - %% Compile the script - ScriptFile = RootName ++ ".script", - case systools:make_script(RootName, [local, silent, exref]) of - {ok, Module, Warnings} -> - %% This gets lots of spurious no-source warnings when we - %% have .ez files, so we want to supress them to prevent - %% hiding real issues. On Ubuntu, we also get warnings - %% about kernel/stdlib sources being out of date, which we - %% also ignore for the same reason. - WarningStr = Module:format_warning( - [W || W <- Warnings, - case W of - {warning, {source_not_found, _}} -> false; - {warning, {obj_out_of_date, {_,_,WApp,_,_}}} - when WApp == mnesia; - WApp == stdlib; - WApp == kernel; - WApp == sasl; - WApp == crypto; - WApp == os_mon -> false; - _ -> true - end]), - case length(WarningStr) of - 0 -> ok; - _ -> io:format("~s", [WarningStr]) - end, - ok; - {error, Module, Error} -> - terminate("generation of boot script file ~s failed:~n~s", - [ScriptFile, Module:format_error(Error)]) - end, - - case post_process_script(ScriptFile) of - ok -> ok; - {error, Reason} -> - terminate("post processing of boot script file ~s failed:~n~w", - [ScriptFile, Reason]) - end, - case systools:script2boot(RootName) of - ok -> ok; - error -> terminate("failed to compile boot script file ~s", - [ScriptFile]) - end, - io:format("~w plugins activated:~n", [length(PluginApps)]), - [io:format("* ~s-~s~n", [App, proplists:get_value(App, AppVersions)]) - || App <- PluginApps], - io:nl(), - - ok = duplicate_node_check(NodeStr), - - terminate(0), - ok. - -stop() -> - ok. - -determine_version(App) -> - application:load(App), - {ok, Vsn} = application:get_key(App, vsn), - {App, Vsn}. - -delete_recursively(Fn) -> - case filelib:is_dir(Fn) and not(is_symlink(Fn)) of - true -> - case file:list_dir(Fn) of - {ok, Files} -> - case lists:foldl(fun ( Fn1, ok) -> delete_recursively( - Fn ++ "/" ++ Fn1); - (_Fn1, Err) -> Err - end, ok, Files) of - ok -> case file:del_dir(Fn) of - ok -> ok; - {error, E} -> {error, - {cannot_delete, Fn, E}} - end; - Err -> Err - end; - {error, E} -> - {error, {cannot_list_files, Fn, E}} - end; - false -> - case filelib:is_file(Fn) of - true -> case file:delete(Fn) of - ok -> ok; - {error, E} -> {error, {cannot_delete, Fn, E}} - end; - false -> ok - end - end. - -is_symlink(Name) -> - case file:read_link(Name) of - {ok, _} -> true; - _ -> false - end. - -unpack_ez_plugins(SrcDir, DestDir) -> - %% Eliminate the contents of the destination directory - case delete_recursively(DestDir) of - ok -> ok; - {error, E} -> terminate("Could not delete dir ~s (~p)", [DestDir, E]) - end, - case filelib:ensure_dir(DestDir ++ "/") of - ok -> ok; - {error, E2} -> terminate("Could not create dir ~s (~p)", [DestDir, E2]) - end, - [unpack_ez_plugin(PluginName, DestDir) || - PluginName <- filelib:wildcard(SrcDir ++ "/*.ez")]. - -unpack_ez_plugin(PluginFn, PluginDestDir) -> - zip:unzip(PluginFn, [{cwd, PluginDestDir}]), - ok. - -find_plugins(PluginDir) -> - [prepare_dir_plugin(PluginName) || - PluginName <- filelib:wildcard(PluginDir ++ "/*/ebin/*.app")]. - -prepare_dir_plugin(PluginAppDescFn) -> - %% Add the plugin ebin directory to the load path - PluginEBinDirN = filename:dirname(PluginAppDescFn), - code:add_path(PluginEBinDirN), - - %% We want the second-last token - NameTokens = string:tokens(PluginAppDescFn,"/."), - PluginNameString = lists:nth(length(NameTokens) - 1, NameTokens), - list_to_atom(PluginNameString). - -expand_dependencies(Pending) -> - expand_dependencies(sets:new(), Pending). -expand_dependencies(Current, []) -> - Current; -expand_dependencies(Current, [Next|Rest]) -> - case sets:is_element(Next, Current) of - true -> - expand_dependencies(Current, Rest); - false -> - case application:load(Next) of - ok -> - ok; - {error, {already_loaded, _}} -> - ok; - {error, Reason} -> - throw({failed_to_load_app, Next, Reason}) - end, - {ok, Required} = application:get_key(Next, applications), - Unique = [A || A <- Required, not(sets:is_element(A, Current))], - expand_dependencies(sets:add_element(Next, Current), Rest ++ Unique) - end. - -post_process_script(ScriptFile) -> - case file:consult(ScriptFile) of - {ok, [{script, Name, Entries}]} -> - NewEntries = lists:flatmap(fun process_entry/1, Entries), - case file:open(ScriptFile, [write]) of - {ok, Fd} -> - io:format(Fd, "%% script generated at ~w ~w~n~p.~n", - [date(), time(), {script, Name, NewEntries}]), - file:close(Fd), - ok; - {error, OReason} -> - {error, {failed_to_open_script_file_for_writing, OReason}} - end; - {error, Reason} -> - {error, {failed_to_load_script, Reason}} - end. - -process_entry(Entry = {apply,{application,start_boot,[rabbit,permanent]}}) -> - [{apply,{rabbit,prepare,[]}}, Entry]; -process_entry(Entry) -> - [Entry]. - -%% Check whether a node with the same name is already running -duplicate_node_check([]) -> - %% Ignore running node while installing windows service - ok; -duplicate_node_check(NodeStr) -> - Node = rabbit_misc:makenode(NodeStr), - {NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - case net_adm:names(NodeHost) of - {ok, NamePorts} -> - case proplists:is_defined(NodeName, NamePorts) of - true -> io:format("node with name ~p " - "already running on ~p~n", - [NodeName, NodeHost]), - [io:format(Fmt ++ "~n", Args) || - {Fmt, Args} <- rabbit_control:diagnostics(Node)], - terminate(?ERROR_CODE); - false -> ok - end; - {error, EpmdReason} -> terminate("unexpected epmd error: ~p~n", - [EpmdReason]) - end. - -terminate(Fmt, Args) -> - io:format("ERROR: " ++ Fmt ++ "~n", Args), - terminate(?ERROR_CODE). - -terminate(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status), - receive - after infinity -> ok - end - end. diff --git a/src/rabbit_queue_collector.erl b/src/rabbit_queue_collector.erl deleted file mode 100644 index 9b45e798..00000000 --- a/src/rabbit_queue_collector.erl +++ /dev/null @@ -1,92 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_collector). - --behaviour(gen_server). - --export([start_link/0, register/2, delete_all/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {queues, delete_from}). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/2 :: (pid(), rabbit_types:amqqueue()) -> 'ok'). --spec(delete_all/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link(?MODULE, [], []). - -register(CollectorPid, Q) -> - gen_server:call(CollectorPid, {register, Q}, infinity). - -delete_all(CollectorPid) -> - gen_server:call(CollectorPid, delete_all, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state{queues = dict:new(), delete_from = undefined}}. - -%%-------------------------------------------------------------------------- - -handle_call({register, Q}, _From, - State = #state{queues = Queues, delete_from = Deleting}) -> - MonitorRef = erlang:monitor(process, Q#amqqueue.pid), - case Deleting of - undefined -> ok; - _ -> rabbit_amqqueue:delete_immediately(Q) - end, - {reply, ok, State#state{queues = dict:store(MonitorRef, Q, Queues)}}; - -handle_call(delete_all, From, State = #state{queues = Queues, - delete_from = undefined}) -> - case dict:size(Queues) of - 0 -> {reply, ok, State#state{delete_from = From}}; - _ -> [rabbit_amqqueue:delete_immediately(Q) - || {_MRef, Q} <- dict:to_list(Queues)], - {noreply, State#state{delete_from = From}} - end. - -handle_cast(Msg, State) -> - {stop, {unhandled_cast, Msg}, State}. - -handle_info({'DOWN', MonitorRef, process, _DownPid, _Reason}, - State = #state{queues = Queues, delete_from = Deleting}) -> - Queues1 = dict:erase(MonitorRef, Queues), - case Deleting =/= undefined andalso dict:size(Queues1) =:= 0 of - true -> gen_server:reply(Deleting, ok); - false -> ok - end, - {noreply, State#state{queues = Queues1}}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl deleted file mode 100644 index 8227e4cd..00000000 --- a/src/rabbit_queue_index.erl +++ /dev/null @@ -1,1071 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_index). - --export([init/2, shutdown_terms/1, recover/5, - terminate/2, delete_and_terminate/1, - publish/5, deliver/2, ack/2, sync/1, sync/2, flush/1, read/3, - next_segment_boundary/1, bounds/1, recover/1]). - --export([add_queue_ttl/0]). - --define(CLEAN_FILENAME, "clean.dot"). - -%%---------------------------------------------------------------------------- - -%% The queue index is responsible for recording the order of messages -%% within a queue on disk. -%% -%% Because of the fact that the queue can decide at any point to send -%% a queue entry to disk, you can not rely on publishes appearing in -%% order. The only thing you can rely on is a message being published, -%% then delivered, then ack'd. -%% -%% In order to be able to clean up ack'd messages, we write to segment -%% files. These files have a fixed maximum size: ?SEGMENT_ENTRY_COUNT -%% publishes, delivers and acknowledgements. They are numbered, and so -%% it is known that the 0th segment contains messages 0 -> -%% ?SEGMENT_ENTRY_COUNT - 1, the 1st segment contains messages -%% ?SEGMENT_ENTRY_COUNT -> 2*?SEGMENT_ENTRY_COUNT - 1 and so on. As -%% such, in the segment files, we only refer to message sequence ids -%% by the LSBs as SeqId rem ?SEGMENT_ENTRY_COUNT. This gives them a -%% fixed size. -%% -%% However, transient messages which are not sent to disk at any point -%% will cause gaps to appear in segment files. Therefore, we delete a -%% segment file whenever the number of publishes == number of acks -%% (note that although it is not fully enforced, it is assumed that a -%% message will never be ackd before it is delivered, thus this test -%% also implies == number of delivers). In practise, this does not -%% cause disk churn in the pathological case because of the journal -%% and caching (see below). -%% -%% Because of the fact that publishes, delivers and acks can occur all -%% over, we wish to avoid lots of seeking. Therefore we have a fixed -%% sized journal to which all actions are appended. When the number of -%% entries in this journal reaches max_journal_entries, the journal -%% entries are scattered out to their relevant files, and the journal -%% is truncated to zero size. Note that entries in the journal must -%% carry the full sequence id, thus the format of entries in the -%% journal is different to that in the segments. -%% -%% The journal is also kept fully in memory, pre-segmented: the state -%% contains a mapping from segment numbers to state-per-segment (this -%% state is held for all segments which have been "seen": thus a -%% segment which has been read but has no pending entries in the -%% journal is still held in this mapping. Also note that a dict is -%% used for this mapping, not an array because with an array, you will -%% always have entries from 0). Actions are stored directly in this -%% state. Thus at the point of flushing the journal, firstly no -%% reading from disk is necessary, but secondly if the known number of -%% acks and publishes in a segment are equal, given the known state of -%% the segment file combined with the journal, no writing needs to be -%% done to the segment file either (in fact it is deleted if it exists -%% at all). This is safe given that the set of acks is a subset of the -%% set of publishes. When it's necessary to sync messages because of -%% transactions, it's only necessary to fsync on the journal: when -%% entries are distributed from the journal to segment files, those -%% segments appended to are fsync'd prior to the journal being -%% truncated. -%% -%% This module is also responsible for scanning the queue index files -%% and seeding the message store on start up. -%% -%% Note that in general, the representation of a message's state as -%% the tuple: {('no_pub'|{MsgId, MsgProps, IsPersistent}), -%% ('del'|'no_del'), ('ack'|'no_ack')} is richer than strictly -%% necessary for most operations. However, for startup, and to ensure -%% the safe and correct combination of journal entries with entries -%% read from the segment on disk, this richer representation vastly -%% simplifies and clarifies the code. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. -%% -%%---------------------------------------------------------------------------- - -%% ---- Journal details ---- - --define(JOURNAL_FILENAME, "journal.jif"). - --define(PUB_PERSIST_JPREFIX, 2#00). --define(PUB_TRANS_JPREFIX, 2#01). --define(DEL_JPREFIX, 2#10). --define(ACK_JPREFIX, 2#11). --define(JPREFIX_BITS, 2). --define(SEQ_BYTES, 8). --define(SEQ_BITS, ((?SEQ_BYTES * 8) - ?JPREFIX_BITS)). - -%% ---- Segment details ---- - --define(SEGMENT_EXTENSION, ".idx"). - -%% TODO: The segment size would be configurable, but deriving all the -%% other values is quite hairy and quite possibly noticably less -%% efficient, depending on how clever the compiler is when it comes to -%% binary generation/matching with constant vs variable lengths. - --define(REL_SEQ_BITS, 14). --define(SEGMENT_ENTRY_COUNT, 16384). %% trunc(math:pow(2,?REL_SEQ_BITS))). - -%% seq only is binary 00 followed by 14 bits of rel seq id -%% (range: 0 - 16383) --define(REL_SEQ_ONLY_PREFIX, 00). --define(REL_SEQ_ONLY_PREFIX_BITS, 2). --define(REL_SEQ_ONLY_ENTRY_LENGTH_BYTES, 2). - -%% publish record is binary 1 followed by a bit for is_persistent, -%% then 14 bits of rel seq id, 64 bits for message expiry and 128 bits -%% of md5sum msg id --define(PUBLISH_PREFIX, 1). --define(PUBLISH_PREFIX_BITS, 1). - --define(EXPIRY_BYTES, 8). --define(EXPIRY_BITS, (?EXPIRY_BYTES * 8)). --define(NO_EXPIRY, 0). - --define(MSG_ID_BYTES, 16). %% md5sum is 128 bit or 16 bytes --define(MSG_ID_BITS, (?MSG_ID_BYTES * 8)). -%% 16 bytes for md5sum + 8 for expiry + 2 for seq, bits and prefix --define(PUBLISH_RECORD_LENGTH_BYTES, ?MSG_ID_BYTES + ?EXPIRY_BYTES + 2). - -%% 1 publish, 1 deliver, 1 ack per msg --define(SEGMENT_TOTAL_SIZE, ?SEGMENT_ENTRY_COUNT * - (?PUBLISH_RECORD_LENGTH_BYTES + - (2 * ?REL_SEQ_ONLY_ENTRY_LENGTH_BYTES))). - -%% ---- misc ---- - --define(PUB, {_, _, _}). %% {MsgId, MsgProps, IsPersistent} - --define(READ_MODE, [binary, raw, read]). --define(READ_AHEAD_MODE, [{read_ahead, ?SEGMENT_TOTAL_SIZE} | ?READ_MODE]). --define(WRITE_MODE, [write | ?READ_MODE]). - -%%---------------------------------------------------------------------------- - --record(qistate, { dir, segments, journal_handle, dirty_count, - max_journal_entries, on_sync, unsynced_msg_ids }). - --record(segment, { num, path, journal_entries, unacked }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({add_queue_ttl, []}). - --ifdef(use_specs). - --type(hdl() :: ('undefined' | any())). --type(segment() :: ('undefined' | - #segment { num :: non_neg_integer(), - path :: file:filename(), - journal_entries :: array(), - unacked :: non_neg_integer() - })). --type(seq_id() :: integer()). --type(seg_dict() :: {dict(), [segment()]}). --type(on_sync_fun() :: fun ((gb_set()) -> ok)). --type(qistate() :: #qistate { dir :: file:filename(), - segments :: 'undefined' | seg_dict(), - journal_handle :: hdl(), - dirty_count :: integer(), - max_journal_entries :: non_neg_integer(), - on_sync :: on_sync_fun(), - unsynced_msg_ids :: [rabbit_types:msg_id()] - }). --type(contains_predicate() :: fun ((rabbit_types:msg_id()) -> boolean())). --type(walker(A) :: fun ((A) -> 'finished' | - {rabbit_types:msg_id(), non_neg_integer(), A})). --type(shutdown_terms() :: [any()]). - --spec(init/2 :: (rabbit_amqqueue:name(), on_sync_fun()) -> qistate()). --spec(shutdown_terms/1 :: (rabbit_amqqueue:name()) -> shutdown_terms()). --spec(recover/5 :: (rabbit_amqqueue:name(), shutdown_terms(), boolean(), - contains_predicate(), on_sync_fun()) -> - {'undefined' | non_neg_integer(), qistate()}). --spec(terminate/2 :: ([any()], qistate()) -> qistate()). --spec(delete_and_terminate/1 :: (qistate()) -> qistate()). --spec(publish/5 :: (rabbit_types:msg_id(), seq_id(), - rabbit_types:message_properties(), boolean(), qistate()) - -> qistate()). --spec(deliver/2 :: ([seq_id()], qistate()) -> qistate()). --spec(ack/2 :: ([seq_id()], qistate()) -> qistate()). --spec(sync/2 :: ([seq_id()], qistate()) -> qistate()). --spec(flush/1 :: (qistate()) -> qistate()). --spec(read/3 :: (seq_id(), seq_id(), qistate()) -> - {[{rabbit_types:msg_id(), seq_id(), - rabbit_types:message_properties(), - boolean(), boolean()}], qistate()}). --spec(next_segment_boundary/1 :: (seq_id()) -> seq_id()). --spec(bounds/1 :: (qistate()) -> - {non_neg_integer(), non_neg_integer(), qistate()}). --spec(recover/1 :: ([rabbit_amqqueue:name()]) -> {[[any()]], {walker(A), A}}). - --spec(add_queue_ttl/0 :: () -> 'ok'). - --endif. - - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -init(Name, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - false = filelib:is_file(Dir), %% is_file == is file or dir - State #qistate { on_sync = OnSyncFun }. - -shutdown_terms(Name) -> - #qistate { dir = Dir } = blank_state(Name), - case read_shutdown_terms(Dir) of - {error, _} -> []; - {ok, Terms1} -> Terms1 - end. - -recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - State1 = State #qistate { on_sync = OnSyncFun }, - CleanShutdown = detect_clean_shutdown(Dir), - case CleanShutdown andalso MsgStoreRecovered of - true -> RecoveredCounts = proplists:get_value(segments, Terms, []), - init_clean(RecoveredCounts, State1); - false -> init_dirty(CleanShutdown, ContainsCheckFun, State1) - end. - -terminate(Terms, State) -> - {SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - store_clean_shutdown([{segments, SegmentCounts} | Terms], Dir), - State1. - -delete_and_terminate(State) -> - {_SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - ok = rabbit_misc:recursive_delete([Dir]), - State1. - -publish(MsgId, SeqId, MsgProps, IsPersistent, - State = #qistate { unsynced_msg_ids = UnsyncedMsgIds }) - when is_binary(MsgId) -> - ?MSG_ID_BYTES = size(MsgId), - {JournalHdl, State1} = get_journal_handle( - State #qistate { - unsynced_msg_ids = [MsgId | UnsyncedMsgIds] }), - ok = file_handle_cache:append( - JournalHdl, [<<(case IsPersistent of - true -> ?PUB_PERSIST_JPREFIX; - false -> ?PUB_TRANS_JPREFIX - end):?JPREFIX_BITS, - SeqId:?SEQ_BITS>>, - create_pub_record_body(MsgId, MsgProps)]), - maybe_flush_journal( - add_to_journal(SeqId, {MsgId, MsgProps, IsPersistent}, State1)). - -deliver(SeqIds, State) -> - deliver_or_ack(del, SeqIds, State). - -ack(SeqIds, State) -> - deliver_or_ack(ack, SeqIds, State). - -%% This is only called when there are outstanding confirms and the -%% queue is idle. -sync(State = #qistate { unsynced_msg_ids = MsgIds }) -> - sync_if([] =/= MsgIds, State). - -sync(SeqIds, State) -> - %% The SeqIds here contains the SeqId of every publish and ack in - %% the transaction. Ideally we should go through these seqids and - %% only sync the journal if the pubs or acks appear in the - %% journal. However, this would be complex to do, and given that - %% the variable queue publishes and acks to the qi, and then - %% syncs, all in one operation, there is no possibility of the - %% seqids not being in the journal, provided the transaction isn't - %% emptied (handled by sync_if anyway). - sync_if([] =/= SeqIds, State). - -flush(State = #qistate { dirty_count = 0 }) -> State; -flush(State) -> flush_journal(State). - -read(StartEnd, StartEnd, State) -> - {[], State}; -read(Start, End, State = #qistate { segments = Segments, - dir = Dir }) when Start =< End -> - %% Start is inclusive, End is exclusive. - LowerB = {StartSeg, _StartRelSeq} = seq_id_to_seg_and_rel_seq_id(Start), - UpperB = {EndSeg, _EndRelSeq} = seq_id_to_seg_and_rel_seq_id(End - 1), - {Messages, Segments1} = - lists:foldr(fun (Seg, Acc) -> - read_bounded_segment(Seg, LowerB, UpperB, Acc, Dir) - end, {[], Segments}, lists:seq(StartSeg, EndSeg)), - {Messages, State #qistate { segments = Segments1 }}. - -next_segment_boundary(SeqId) -> - {Seg, _RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - reconstruct_seq_id(Seg + 1, 0). - -bounds(State = #qistate { segments = Segments }) -> - %% This is not particularly efficient, but only gets invoked on - %% queue initialisation. - SegNums = lists:sort(segment_nums(Segments)), - %% Don't bother trying to figure out the lowest seq_id, merely the - %% seq_id of the start of the lowest segment. That seq_id may not - %% actually exist, but that's fine. The important thing is that - %% the segment exists and the seq_id reported is on a segment - %% boundary. - %% - %% We also don't really care about the max seq_id. Just start the - %% next segment: it makes life much easier. - %% - %% SegNums is sorted, ascending. - {LowSeqId, NextSeqId} = - case SegNums of - [] -> {0, 0}; - [MinSeg|_] -> {reconstruct_seq_id(MinSeg, 0), - reconstruct_seq_id(1 + lists:last(SegNums), 0)} - end, - {LowSeqId, NextSeqId, State}. - -recover(DurableQueues) -> - DurableDict = dict:from_list([ {queue_name_to_dir_name(Queue), Queue} || - Queue <- DurableQueues ]), - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), - {DurableQueueNames, DurableTerms} = - lists:foldl( - fun (QueueDirName, {DurableAcc, TermsAcc}) -> - QueueDirPath = filename:join(QueuesDir, QueueDirName), - case sets:is_element(QueueDirName, DurableDirectories) of - true -> - TermsAcc1 = - case read_shutdown_terms(QueueDirPath) of - {error, _} -> TermsAcc; - {ok, Terms} -> [Terms | TermsAcc] - end, - {[dict:fetch(QueueDirName, DurableDict) | DurableAcc], - TermsAcc1}; - false -> - ok = rabbit_misc:recursive_delete([QueueDirPath]), - {DurableAcc, TermsAcc} - end - end, {[], []}, QueueDirNames), - {DurableTerms, {fun queue_index_walker/1, {start, DurableQueueNames}}}. - -all_queue_directory_names(Dir) -> - case file:list_dir(Dir) of - {ok, Entries} -> [ Entry || Entry <- Entries, - filelib:is_dir( - filename:join(Dir, Entry)) ]; - {error, enoent} -> [] - end. - -%%---------------------------------------------------------------------------- -%% startup and shutdown -%%---------------------------------------------------------------------------- - -blank_state(QueueName) -> - Dir = filename:join(queues_dir(), queue_name_to_dir_name(QueueName)), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - #qistate { dir = Dir, - segments = segments_new(), - journal_handle = undefined, - dirty_count = 0, - max_journal_entries = MaxJournal, - on_sync = fun (_) -> ok end, - unsynced_msg_ids = [] }. - -clean_file_name(Dir) -> filename:join(Dir, ?CLEAN_FILENAME). - -detect_clean_shutdown(Dir) -> - case file:delete(clean_file_name(Dir)) of - ok -> true; - {error, enoent} -> false - end. - -read_shutdown_terms(Dir) -> - rabbit_misc:read_term_file(clean_file_name(Dir)). - -store_clean_shutdown(Terms, Dir) -> - CleanFileName = clean_file_name(Dir), - ok = filelib:ensure_dir(CleanFileName), - rabbit_misc:write_term_file(CleanFileName, Terms). - -init_clean(RecoveredCounts, State) -> - %% Load the journal. Since this is a clean recovery this (almost) - %% gets us back to where we were on shutdown. - State1 = #qistate { dir = Dir, segments = Segments } = load_journal(State), - %% The journal loading only creates records for segments touched - %% by the journal, and the counts are based on the journal entries - %% only. We need *complete* counts for *all* segments. By an - %% amazing coincidence we stored that information on shutdown. - Segments1 = - lists:foldl( - fun ({Seg, UnackedCount}, SegmentsN) -> - Segment = segment_find_or_new(Seg, Dir, SegmentsN), - segment_store(Segment #segment { unacked = UnackedCount }, - SegmentsN) - end, Segments, RecoveredCounts), - %% the counts above include transient messages, which would be the - %% wrong thing to return - {undefined, State1 # qistate { segments = Segments1 }}. - -init_dirty(CleanShutdown, ContainsCheckFun, State) -> - %% Recover the journal completely. This will also load segments - %% which have entries in the journal and remove duplicates. The - %% counts will correctly reflect the combination of the segment - %% and the journal. - State1 = #qistate { dir = Dir, segments = Segments } = - recover_journal(State), - {Segments1, Count} = - %% Load each segment in turn and filter out messages that are - %% not in the msg_store, by adding acks to the journal. These - %% acks only go to the RAM journal as it doesn't matter if we - %% lose them. Also mark delivered if not clean shutdown. Also - %% find the number of unacked messages. - lists:foldl( - fun (Seg, {Segments2, CountAcc}) -> - Segment = #segment { unacked = UnackedCount } = - recover_segment(ContainsCheckFun, CleanShutdown, - segment_find_or_new(Seg, Dir, Segments2)), - {segment_store(Segment, Segments2), CountAcc + UnackedCount} - end, {Segments, 0}, all_segment_nums(State1)), - %% Unconditionally flush since the dirty_count doesn't get updated - %% by the above foldl. - State2 = flush_journal(State1 #qistate { segments = Segments1 }), - {Count, State2}. - -terminate(State = #qistate { journal_handle = JournalHdl, - segments = Segments }) -> - ok = case JournalHdl of - undefined -> ok; - _ -> file_handle_cache:close(JournalHdl) - end, - SegmentCounts = - segment_fold( - fun (#segment { num = Seg, unacked = UnackedCount }, Acc) -> - [{Seg, UnackedCount} | Acc] - end, [], Segments), - {SegmentCounts, State #qistate { journal_handle = undefined, - segments = undefined }}. - -recover_segment(ContainsCheckFun, CleanShutdown, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, UnackedCount} = load_segment(false, Segment), - {SegEntries1, UnackedCountDelta} = - segment_plus_journal(SegEntries, JEntries), - array:sparse_foldl( - fun (RelSeq, {{MsgId, _MsgProps, _IsPersistent}, Del, no_ack}, - Segment1) -> - recover_message(ContainsCheckFun(MsgId), CleanShutdown, - Del, RelSeq, Segment1) - end, - Segment #segment { unacked = UnackedCount + UnackedCountDelta }, - SegEntries1). - -recover_message( true, true, _Del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, del, Segment); -recover_message(false, _, del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, Segment); -recover_message(false, _, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, add_to_journal(RelSeq, del, Segment)). - -queue_name_to_dir_name(Name = #resource { kind = queue }) -> - <> = erlang:md5(term_to_binary(Name)), - lists:flatten(io_lib:format("~.36B", [Num])). - -queues_dir() -> - filename:join(rabbit_mnesia:dir(), "queues"). - -%%---------------------------------------------------------------------------- -%% msg store startup delta function -%%---------------------------------------------------------------------------- - -queue_index_walker({start, DurableQueues}) when is_list(DurableQueues) -> - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> queue_index_walker_reader(QueueName, Gatherer) - end) - end || QueueName <- DurableQueues], - queue_index_walker({next, Gatherer}); - -queue_index_walker({next, Gatherer}) when is_pid(Gatherer) -> - case gatherer:out(Gatherer) of - empty -> - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer), - finished; - {value, {MsgId, Count}} -> - {MsgId, Count, {next, Gatherer}} - end. - -queue_index_walker_reader(QueueName, Gatherer) -> - State = #qistate { segments = Segments, dir = Dir } = - recover_journal(blank_state(QueueName)), - [ok = segment_entries_foldr( - fun (_RelSeq, {{MsgId, _MsgProps, true}, _IsDelivered, no_ack}, - ok) -> - gatherer:in(Gatherer, {MsgId, 1}); - (_RelSeq, _Value, Acc) -> - Acc - end, ok, segment_find_or_new(Seg, Dir, Segments)) || - Seg <- all_segment_nums(State)], - {_SegmentCounts, _State} = terminate(State), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% expiry/binary manipulation -%%---------------------------------------------------------------------------- - -create_pub_record_body(MsgId, #message_properties{expiry = Expiry}) -> - [MsgId, expiry_to_binary(Expiry)]. - -expiry_to_binary(undefined) -> <>; -expiry_to_binary(Expiry) -> <>. - -read_pub_record_body(Hdl) -> - case file_handle_cache:read(Hdl, ?MSG_ID_BYTES + ?EXPIRY_BYTES) of - {ok, Bin} -> - %% work around for binary data fragmentation. See - %% rabbit_msg_file:read_next/2 - <> = Bin, - <> = <>, - Exp = case Expiry of - ?NO_EXPIRY -> undefined; - X -> X - end, - {MsgId, #message_properties{expiry = Exp}}; - Error -> - Error - end. - -%%---------------------------------------------------------------------------- -%% journal manipulation -%%---------------------------------------------------------------------------- - -add_to_journal(SeqId, Action, State = #qistate { dirty_count = DCount, - segments = Segments, - dir = Dir }) -> - {Seg, RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - Segment = segment_find_or_new(Seg, Dir, Segments), - Segment1 = add_to_journal(RelSeq, Action, Segment), - State #qistate { dirty_count = DCount + 1, - segments = segment_store(Segment1, Segments) }; - -add_to_journal(RelSeq, Action, - Segment = #segment { journal_entries = JEntries, - unacked = UnackedCount }) -> - Segment1 = Segment #segment { - journal_entries = add_to_journal(RelSeq, Action, JEntries) }, - case Action of - del -> Segment1; - ack -> Segment1 #segment { unacked = UnackedCount - 1 }; - ?PUB -> Segment1 #segment { unacked = UnackedCount + 1 } - end; - -add_to_journal(RelSeq, Action, JEntries) -> - Val = case array:get(RelSeq, JEntries) of - undefined -> - case Action of - ?PUB -> {Action, no_del, no_ack}; - del -> {no_pub, del, no_ack}; - ack -> {no_pub, no_del, ack} - end; - ({Pub, no_del, no_ack}) when Action == del -> - {Pub, del, no_ack}; - ({Pub, Del, no_ack}) when Action == ack -> - {Pub, Del, ack} - end, - array:set(RelSeq, Val, JEntries). - -maybe_flush_journal(State = #qistate { dirty_count = DCount, - max_journal_entries = MaxJournal }) - when DCount > MaxJournal -> - flush_journal(State); -maybe_flush_journal(State) -> - State. - -flush_journal(State = #qistate { segments = Segments }) -> - Segments1 = - segment_fold( - fun (#segment { unacked = 0, path = Path }, SegmentsN) -> - case filelib:is_file(Path) of - true -> ok = file:delete(Path); - false -> ok - end, - SegmentsN; - (#segment {} = Segment, SegmentsN) -> - segment_store(append_journal_to_segment(Segment), SegmentsN) - end, segments_new(), Segments), - {JournalHdl, State1} = - get_journal_handle(State #qistate { segments = Segments1 }), - ok = file_handle_cache:clear(JournalHdl), - notify_sync(State1 #qistate { dirty_count = 0 }). - -append_journal_to_segment(#segment { journal_entries = JEntries, - path = Path } = Segment) -> - case array:sparse_size(JEntries) of - 0 -> Segment; - _ -> {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - array:sparse_foldl(fun write_entry_to_segment/3, Hdl, JEntries), - ok = file_handle_cache:close(Hdl), - Segment #segment { journal_entries = array_new() } - end. - -get_journal_handle(State = #qistate { journal_handle = undefined, - dir = Dir }) -> - Path = filename:join(Dir, ?JOURNAL_FILENAME), - ok = filelib:ensure_dir(Path), - {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - {Hdl, State #qistate { journal_handle = Hdl }}; -get_journal_handle(State = #qistate { journal_handle = Hdl }) -> - {Hdl, State}. - -%% Loading Journal. This isn't idempotent and will mess up the counts -%% if you call it more than once on the same state. Assumes the counts -%% are 0 to start with. -load_journal(State) -> - {JournalHdl, State1} = get_journal_handle(State), - {ok, 0} = file_handle_cache:position(JournalHdl, 0), - load_journal_entries(State1). - -%% ditto -recover_journal(State) -> - State1 = #qistate { segments = Segments } = load_journal(State), - Segments1 = - segment_map( - fun (Segment = #segment { journal_entries = JEntries, - unacked = UnackedCountInJournal }) -> - %% We want to keep ack'd entries in so that we can - %% remove them if duplicates are in the journal. The - %% counts here are purely from the segment itself. - {SegEntries, UnackedCountInSeg} = load_segment(true, Segment), - {JEntries1, UnackedCountDuplicates} = - journal_minus_segment(JEntries, SegEntries), - Segment #segment { journal_entries = JEntries1, - unacked = (UnackedCountInJournal + - UnackedCountInSeg - - UnackedCountDuplicates) } - end, Segments), - State1 #qistate { segments = Segments1 }. - -load_journal_entries(State = #qistate { journal_handle = Hdl }) -> - case file_handle_cache:read(Hdl, ?SEQ_BYTES) of - {ok, <>} -> - case Prefix of - ?DEL_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, del, State)); - ?ACK_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, ack, State)); - _ -> - case read_pub_record_body(Hdl) of - {MsgId, MsgProps} -> - Publish = {MsgId, MsgProps, - case Prefix of - ?PUB_PERSIST_JPREFIX -> true; - ?PUB_TRANS_JPREFIX -> false - end}, - load_journal_entries( - add_to_journal(SeqId, Publish, State)); - _ErrOrEoF -> %% err, we've lost at least a publish - State - end - end; - _ErrOrEoF -> State - end. - -deliver_or_ack(_Kind, [], State) -> - State; -deliver_or_ack(Kind, SeqIds, State) -> - JPrefix = case Kind of ack -> ?ACK_JPREFIX; del -> ?DEL_JPREFIX end, - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, - [<> || SeqId <- SeqIds]), - maybe_flush_journal(lists:foldl(fun (SeqId, StateN) -> - add_to_journal(SeqId, Kind, StateN) - end, State1, SeqIds)). - -sync_if(false, State) -> - State; -sync_if(_Bool, State = #qistate { journal_handle = undefined }) -> - State; -sync_if(true, State = #qistate { journal_handle = JournalHdl }) -> - ok = file_handle_cache:sync(JournalHdl), - notify_sync(State). - -notify_sync(State = #qistate { unsynced_msg_ids = UG, on_sync = OnSyncFun }) -> - OnSyncFun(gb_sets:from_list(UG)), - State #qistate { unsynced_msg_ids = [] }. - -%%---------------------------------------------------------------------------- -%% segment manipulation -%%---------------------------------------------------------------------------- - -seq_id_to_seg_and_rel_seq_id(SeqId) -> - { SeqId div ?SEGMENT_ENTRY_COUNT, SeqId rem ?SEGMENT_ENTRY_COUNT }. - -reconstruct_seq_id(Seg, RelSeq) -> - (Seg * ?SEGMENT_ENTRY_COUNT) + RelSeq. - -all_segment_nums(#qistate { dir = Dir, segments = Segments }) -> - lists:sort( - sets:to_list( - lists:foldl( - fun (SegName, Set) -> - sets:add_element( - list_to_integer( - lists:takewhile(fun (C) -> $0 =< C andalso C =< $9 end, - SegName)), Set) - end, sets:from_list(segment_nums(Segments)), - filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)))). - -segment_find_or_new(Seg, Dir, Segments) -> - case segment_find(Seg, Segments) of - {ok, Segment} -> Segment; - error -> SegName = integer_to_list(Seg) ++ ?SEGMENT_EXTENSION, - Path = filename:join(Dir, SegName), - #segment { num = Seg, - path = Path, - journal_entries = array_new(), - unacked = 0 } - end. - -segment_find(Seg, {_Segments, [Segment = #segment { num = Seg } |_]}) -> - {ok, Segment}; %% 1 or (2, matches head) -segment_find(Seg, {_Segments, [_, Segment = #segment { num = Seg }]}) -> - {ok, Segment}; %% 2, matches tail -segment_find(Seg, {Segments, _}) -> %% no match - dict:find(Seg, Segments). - -segment_store(Segment = #segment { num = Seg }, %% 1 or (2, matches head) - {Segments, [#segment { num = Seg } | Tail]}) -> - {Segments, [Segment | Tail]}; -segment_store(Segment = #segment { num = Seg }, %% 2, matches tail - {Segments, [SegmentA, #segment { num = Seg }]}) -> - {Segments, [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, {Segments, []}) -> - {dict:erase(Seg, Segments), [Segment]}; -segment_store(Segment = #segment { num = Seg }, {Segments, [SegmentA]}) -> - {dict:erase(Seg, Segments), [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, - {Segments, [SegmentA, SegmentB]}) -> - {dict:store(SegmentB#segment.num, SegmentB, dict:erase(Seg, Segments)), - [Segment, SegmentA]}. - -segment_fold(Fun, Acc, {Segments, CachedSegments}) -> - dict:fold(fun (_Seg, Segment, Acc1) -> Fun(Segment, Acc1) end, - lists:foldl(Fun, Acc, CachedSegments), Segments). - -segment_map(Fun, {Segments, CachedSegments}) -> - {dict:map(fun (_Seg, Segment) -> Fun(Segment) end, Segments), - lists:map(Fun, CachedSegments)}. - -segment_nums({Segments, CachedSegments}) -> - lists:map(fun (#segment { num = Num }) -> Num end, CachedSegments) ++ - dict:fetch_keys(Segments). - -segments_new() -> - {dict:new(), []}. - -write_entry_to_segment(_RelSeq, {?PUB, del, ack}, Hdl) -> - Hdl; -write_entry_to_segment(RelSeq, {Pub, Del, Ack}, Hdl) -> - ok = case Pub of - no_pub -> - ok; - {MsgId, MsgProps, IsPersistent} -> - file_handle_cache:append( - Hdl, [<>, - create_pub_record_body(MsgId, MsgProps)]) - end, - ok = case {Del, Ack} of - {no_del, no_ack} -> - ok; - _ -> - Binary = <>, - file_handle_cache:append( - Hdl, case {Del, Ack} of - {del, ack} -> [Binary, Binary]; - _ -> Binary - end) - end, - Hdl. - -read_bounded_segment(Seg, {StartSeg, StartRelSeq}, {EndSeg, EndRelSeq}, - {Messages, Segments}, Dir) -> - Segment = segment_find_or_new(Seg, Dir, Segments), - {segment_entries_foldr( - fun (RelSeq, {{MsgId, MsgProps, IsPersistent}, IsDelivered, no_ack}, Acc) - when (Seg > StartSeg orelse StartRelSeq =< RelSeq) andalso - (Seg < EndSeg orelse EndRelSeq >= RelSeq) -> - [ {MsgId, reconstruct_seq_id(StartSeg, RelSeq), MsgProps, - IsPersistent, IsDelivered == del} | Acc ]; - (_RelSeq, _Value, Acc) -> - Acc - end, Messages, Segment), - segment_store(Segment, Segments)}. - -segment_entries_foldr(Fun, Init, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, _UnackedCount} = load_segment(false, Segment), - {SegEntries1, _UnackedCountD} = segment_plus_journal(SegEntries, JEntries), - array:sparse_foldr(Fun, Init, SegEntries1). - -%% Loading segments -%% -%% Does not do any combining with the journal at all. -load_segment(KeepAcked, #segment { path = Path }) -> - case filelib:is_file(Path) of - false -> {array_new(), 0}; - true -> {ok, Hdl} = file_handle_cache:open(Path, ?READ_AHEAD_MODE, []), - {ok, 0} = file_handle_cache:position(Hdl, bof), - Res = load_segment_entries(KeepAcked, Hdl, array_new(), 0), - ok = file_handle_cache:close(Hdl), - Res - end. - -load_segment_entries(KeepAcked, Hdl, SegEntries, UnackedCount) -> - case file_handle_cache:read(Hdl, ?REL_SEQ_ONLY_ENTRY_LENGTH_BYTES) of - {ok, <>} -> - {MsgId, MsgProps} = read_pub_record_body(Hdl), - Obj = {{MsgId, MsgProps, 1 == IsPersistentNum}, no_del, no_ack}, - SegEntries1 = array:set(RelSeq, Obj, SegEntries), - load_segment_entries(KeepAcked, Hdl, SegEntries1, - UnackedCount + 1); - {ok, <>} -> - {UnackedCountDelta, SegEntries1} = - case array:get(RelSeq, SegEntries) of - {Pub, no_del, no_ack} -> - { 0, array:set(RelSeq, {Pub, del, no_ack}, SegEntries)}; - {Pub, del, no_ack} when KeepAcked -> - {-1, array:set(RelSeq, {Pub, del, ack}, SegEntries)}; - {_Pub, del, no_ack} -> - {-1, array:reset(RelSeq, SegEntries)} - end, - load_segment_entries(KeepAcked, Hdl, SegEntries1, - UnackedCount + UnackedCountDelta); - _ErrOrEoF -> - {SegEntries, UnackedCount} - end. - -array_new() -> - array:new([{default, undefined}, fixed, {size, ?SEGMENT_ENTRY_COUNT}]). - -bool_to_int(true ) -> 1; -bool_to_int(false) -> 0. - -%%---------------------------------------------------------------------------- -%% journal & segment combination -%%---------------------------------------------------------------------------- - -%% Combine what we have just read from a segment file with what we're -%% holding for that segment in memory. There must be no duplicates. -segment_plus_journal(SegEntries, JEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {SegEntriesOut, AdditionalUnacked}) -> - SegEntry = array:get(RelSeq, SegEntriesOut), - {Obj, AdditionalUnackedDelta} = - segment_plus_journal1(SegEntry, JObj), - {case Obj of - undefined -> array:reset(RelSeq, SegEntriesOut); - _ -> array:set(RelSeq, Obj, SegEntriesOut) - end, - AdditionalUnacked + AdditionalUnackedDelta} - end, {SegEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item which we may be adding to (for items only in the journal), -%% modifying in (bits in both), or, when returning 'undefined', -%% erasing from (ack in journal, not segment) the segment array. The -%% other element of the tuple is the delta for AdditionalUnacked. -segment_plus_journal1(undefined, {?PUB, no_del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, ack}) -> - {undefined, 0}; - -segment_plus_journal1({?PUB = Pub, no_del, no_ack}, {no_pub, del, no_ack}) -> - {{Pub, del, no_ack}, 0}; -segment_plus_journal1({?PUB, no_del, no_ack}, {no_pub, del, ack}) -> - {undefined, -1}; -segment_plus_journal1({?PUB, del, no_ack}, {no_pub, no_del, ack}) -> - {undefined, -1}. - -%% Remove from the journal entries for a segment, items that are -%% duplicates of entries found in the segment itself. Used on start up -%% to clean up the journal. -journal_minus_segment(JEntries, SegEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {JEntriesOut, UnackedRemoved}) -> - SegEntry = array:get(RelSeq, SegEntries), - {Obj, UnackedRemovedDelta} = - journal_minus_segment1(JObj, SegEntry), - {case Obj of - keep -> JEntriesOut; - undefined -> array:reset(RelSeq, JEntriesOut); - _ -> array:set(RelSeq, Obj, JEntriesOut) - end, - UnackedRemoved + UnackedRemovedDelta} - end, {JEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item we are adding to or modifying in the (initially fresh) journal -%% array. If the item is 'undefined' we leave the journal array -%% alone. The other element of the tuple is the deltas for -%% UnackedRemoved. - -%% Both the same. Must be at least the publish -journal_minus_segment1({?PUB, _Del, no_ack} = Obj, Obj) -> - {undefined, 1}; -journal_minus_segment1({?PUB, _Del, ack} = Obj, Obj) -> - {undefined, 0}; - -%% Just publish in journal -journal_minus_segment1({?PUB, no_del, no_ack}, undefined) -> - {keep, 0}; - -%% Publish and deliver in journal -journal_minus_segment1({?PUB, del, no_ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, no_ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, no_ack}, 1}; - -%% Publish, deliver and ack in journal -journal_minus_segment1({?PUB, del, ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, ack}, 1}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, del, no_ack}) -> - {{no_pub, no_del, ack}, 1}; - -%% Just deliver in journal -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, del, no_ack}) -> - {undefined, 0}; - -%% Just ack in journal -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, ack}) -> - {undefined, -1}; - -%% Deliver and ack in journal -journal_minus_segment1({no_pub, del, ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, no_ack}) -> - {{no_pub, no_del, ack}, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, ack}) -> - {undefined, -1}. - -%%---------------------------------------------------------------------------- -%% upgrade -%%---------------------------------------------------------------------------- - -add_queue_ttl() -> - foreach_queue_index({fun add_queue_ttl_journal/1, - fun add_queue_ttl_segment/1}). - -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {[<>, MsgId, - expiry_to_binary(undefined)], Rest}; -add_queue_ttl_journal(_) -> - stop. - -add_queue_ttl_segment(<>) -> - {[<>, MsgId, expiry_to_binary(undefined)], Rest}; -add_queue_ttl_segment(<>) -> - {<>, - Rest}; -add_queue_ttl_segment(_) -> - stop. - -%%---------------------------------------------------------------------------- - -foreach_queue_index(Funs) -> - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> - transform_queue(filename:join(QueuesDir, QueueDirName), - Gatherer, Funs) - end) - end || QueueDirName <- QueueDirNames], - empty = gatherer:out(Gatherer), - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer). - -transform_queue(Dir, Gatherer, {JournalFun, SegmentFun}) -> - ok = transform_file(filename:join(Dir, ?JOURNAL_FILENAME), JournalFun), - [ok = transform_file(filename:join(Dir, Seg), SegmentFun) - || Seg <- filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)], - ok = gatherer:finish(Gatherer). - -transform_file(Path, Fun) -> - PathTmp = Path ++ ".upgrade", - case filelib:file_size(Path) of - 0 -> ok; - Size -> {ok, PathTmpHdl} = - file_handle_cache:open(PathTmp, ?WRITE_MODE, - [{write_buffer, infinity}]), - - {ok, PathHdl} = file_handle_cache:open( - Path, [{read_ahead, Size} | ?READ_MODE], []), - {ok, Content} = file_handle_cache:read(PathHdl, Size), - ok = file_handle_cache:close(PathHdl), - - ok = drive_transform_fun(Fun, PathTmpHdl, Content), - - ok = file_handle_cache:close(PathTmpHdl), - ok = file:rename(PathTmp, Path) - end. - -drive_transform_fun(Fun, Hdl, Contents) -> - case Fun(Contents) of - stop -> ok; - {Output, Contents1} -> ok = file_handle_cache:append(Hdl, Output), - drive_transform_fun(Fun, Hdl, Contents1) - end. diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl deleted file mode 100644 index 5afe5560..00000000 --- a/src/rabbit_reader.erl +++ /dev/null @@ -1,916 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_reader). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([start_link/3, info_keys/0, info/1, info/2, shutdown/2]). - --export([system_continue/3, system_terminate/4, system_code_change/4]). - --export([init/4, mainloop/2]). - --export([conserve_memory/2, server_properties/1]). - --export([process_channel_frame/5]). %% used by erlang-client - --export([emit_stats/1]). - --define(HANDSHAKE_TIMEOUT, 10). --define(NORMAL_TIMEOUT, 3). --define(CLOSING_TIMEOUT, 1). --define(CHANNEL_TERMINATION_TIMEOUT, 3). --define(SILENT_CLOSE_DELAY, 3). - -%%-------------------------------------------------------------------------- - --record(v1, {parent, sock, connection, callback, recv_length, recv_ref, - connection_state, queue_collector, heartbeater, stats_timer, - channel_sup_sup_pid, start_heartbeat_fun, auth_mechanism, - auth_state}). - --define(STATISTICS_KEYS, [pid, recv_oct, recv_cnt, send_oct, send_cnt, - send_pend, state, channels]). - --define(CREATION_EVENT_KEYS, [pid, address, port, peer_address, peer_port, ssl, - peer_cert_subject, peer_cert_issuer, - peer_cert_validity, auth_mechanism, - ssl_protocol, ssl_key_exchange, - ssl_cipher, ssl_hash, - protocol, user, vhost, timeout, frame_max, - client_properties]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - --define(IS_RUNNING(State), - (State#v1.connection_state =:= running orelse - State#v1.connection_state =:= blocking orelse - State#v1.connection_state =:= blocked)). - -%%-------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/3 :: (pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) -> - rabbit_types:ok(pid())). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(shutdown/2 :: (pid(), string()) -> 'ok'). --spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok'). --spec(server_properties/1 :: (rabbit_types:protocol()) -> - rabbit_framing:amqp_table()). - -%% These specs only exists to add no_return() to keep dialyzer happy --spec(init/4 :: (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) - -> no_return()). --spec(start_connection/7 :: - (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun(), any(), - rabbit_net:socket(), - fun ((rabbit_net:socket()) -> - rabbit_types:ok_or_error2( - rabbit_net:socket(), any()))) -> no_return()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link(ChannelSupSupPid, Collector, StartHeartbeatFun) -> - {ok, proc_lib:spawn_link(?MODULE, init, [self(), ChannelSupSupPid, - Collector, StartHeartbeatFun])}. - -shutdown(Pid, Explanation) -> - gen_server:call(Pid, {shutdown, Explanation}, infinity). - -init(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun) -> - Deb = sys:debug_options([]), - receive - {go, Sock, SockTransform} -> - start_connection( - Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, Sock, - SockTransform) - end. - -system_continue(Parent, Deb, State) -> - ?MODULE:mainloop(Deb, State#v1{parent = Parent}). - -system_terminate(Reason, _Parent, _Deb, _State) -> - exit(Reason). - -system_code_change(Misc, _Module, _OldVsn, _Extra) -> - {ok, Misc}. - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -emit_stats(Pid) -> - gen_server:cast(Pid, emit_stats). - -conserve_memory(Pid, Conserve) -> - Pid ! {conserve_memory, Conserve}, - ok. - -server_properties(Protocol) -> - {ok, Product} = application:get_key(rabbit, id), - {ok, Version} = application:get_key(rabbit, vsn), - - %% Get any configuration-specified server properties - {ok, RawConfigServerProps} = application:get_env(rabbit, - server_properties), - - %% Normalize the simplifed (2-tuple) and unsimplified (3-tuple) forms - %% from the config and merge them with the generated built-in properties - NormalizedConfigServerProps = - [{<<"capabilities">>, table, server_capabilities(Protocol)} | - [case X of - {KeyAtom, Value} -> {list_to_binary(atom_to_list(KeyAtom)), - longstr, - list_to_binary(Value)}; - {BinKey, Type, Value} -> {BinKey, Type, Value} - end || X <- RawConfigServerProps ++ - [{product, Product}, - {version, Version}, - {platform, "Erlang/OTP"}, - {copyright, ?COPYRIGHT_MESSAGE}, - {information, ?INFORMATION_MESSAGE}]]], - - %% Filter duplicated properties in favour of config file provided values - lists:usort(fun ({K1,_,_}, {K2,_,_}) -> K1 =< K2 end, - NormalizedConfigServerProps). - -server_capabilities(rabbit_framing_amqp_0_9_1) -> - [{<<"publisher_confirms">>, bool, true}, - {<<"exchange_exchange_bindings">>, bool, true}, - {<<"basic.nack">>, bool, true}, - {<<"consumer_cancel_notify">>, bool, true}]; -server_capabilities(_) -> - []. - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -socket_op(Sock, Fun) -> - case Fun(Sock) of - {ok, Res} -> Res; - {error, Reason} -> rabbit_log:error("error on TCP connection ~p:~p~n", - [self(), Reason]), - rabbit_log:info("closing TCP connection ~p~n", - [self()]), - exit(normal) - end. - -start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, - Sock, SockTransform) -> - process_flag(trap_exit, true), - {PeerAddress, PeerPort} = socket_op(Sock, fun rabbit_net:peername/1), - PeerAddressS = rabbit_misc:ntoab(PeerAddress), - rabbit_log:info("starting TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - ClientSock = socket_op(Sock, SockTransform), - erlang:send_after(?HANDSHAKE_TIMEOUT * 1000, self(), - handshake_timeout), - try - mainloop(Deb, switch_callback( - #v1{parent = Parent, - sock = ClientSock, - connection = #connection{ - protocol = none, - user = none, - timeout_sec = ?HANDSHAKE_TIMEOUT, - frame_max = ?FRAME_MIN_SIZE, - vhost = none, - client_properties = none}, - callback = uninitialized_callback, - recv_length = 0, - recv_ref = none, - connection_state = pre_init, - queue_collector = Collector, - heartbeater = none, - stats_timer = - rabbit_event:init_stats_timer(), - channel_sup_sup_pid = ChannelSupSupPid, - start_heartbeat_fun = StartHeartbeatFun, - auth_mechanism = none, - auth_state = none - }, - handshake, 8)) - catch - Ex -> (if Ex == connection_closed_abruptly -> - fun rabbit_log:warning/2; - true -> - fun rabbit_log:error/2 - end)("exception on TCP connection ~p from ~s:~p~n~p~n", - [self(), PeerAddressS, PeerPort, Ex]) - after - rabbit_log:info("closing TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - %% We don't close the socket explicitly. The reader is the - %% controlling process and hence its termination will close - %% the socket. Furthermore, gen_tcp:close/1 waits for pending - %% output to be sent, which results in unnecessary delays. - %% - %% gen_tcp:close(ClientSock), - rabbit_event:notify(connection_closed, [{pid, self()}]) - end, - done. - -mainloop(Deb, State = #v1{parent = Parent, sock= Sock, recv_ref = Ref}) -> - receive - {inet_async, Sock, Ref, {ok, Data}} -> - mainloop(Deb, handle_input(State#v1.callback, Data, - State#v1{recv_ref = none})); - {inet_async, Sock, Ref, {error, closed}} -> - if State#v1.connection_state =:= closed -> - State; - true -> - throw(connection_closed_abruptly) - end; - {inet_async, Sock, Ref, {error, Reason}} -> - throw({inet_error, Reason}); - {conserve_memory, Conserve} -> - mainloop(Deb, internal_conserve_memory(Conserve, State)); - {channel_closing, ChPid} -> - ok = rabbit_channel:ready_for_close(ChPid), - channel_cleanup(ChPid), - mainloop(Deb, State); - {'EXIT', Parent, Reason} -> - terminate(io_lib:format("broker forced connection closure " - "with reason '~w'", [Reason]), State), - %% this is what we are expected to do according to - %% http://www.erlang.org/doc/man/sys.html - %% - %% If we wanted to be *really* nice we should wait for a - %% while for clients to close the socket at their end, - %% just as we do in the ordinary error case. However, - %% since this termination is initiated by our parent it is - %% probably more important to exit quickly. - exit(Reason); - {channel_exit, _Channel, E = {writer, send_failed, _Error}} -> - throw(E); - {channel_exit, Channel, Reason} -> - mainloop(Deb, handle_exception(State, Channel, Reason)); - {'DOWN', _MRef, process, ChPid, Reason} -> - mainloop(Deb, handle_dependent_exit(ChPid, Reason, State)); - terminate_connection -> - State; - handshake_timeout -> - if ?IS_RUNNING(State) orelse - State#v1.connection_state =:= closing orelse - State#v1.connection_state =:= closed -> - mainloop(Deb, State); - true -> - throw({handshake_timeout, State#v1.callback}) - end; - timeout -> - case State#v1.connection_state of - closed -> mainloop(Deb, State); - S -> throw({timeout, S}) - end; - {'$gen_call', From, {shutdown, Explanation}} -> - {ForceTermination, NewState} = terminate(Explanation, State), - gen_server:reply(From, ok), - case ForceTermination of - force -> ok; - normal -> mainloop(Deb, NewState) - end; - {'$gen_call', From, info} -> - gen_server:reply(From, infos(?INFO_KEYS, State)), - mainloop(Deb, State); - {'$gen_call', From, {info, Items}} -> - gen_server:reply(From, try {ok, infos(Items, State)} - catch Error -> {error, Error} - end), - mainloop(Deb, State); - {'$gen_cast', emit_stats} -> - State1 = internal_emit_stats(State), - mainloop(Deb, State1); - {system, From, Request} -> - sys:handle_system_msg(Request, From, - Parent, ?MODULE, Deb, State); - Other -> - %% internal error -> something worth dying for - exit({unexpected_message, Other}) - end. - -switch_callback(State = #v1{connection_state = blocked, - heartbeater = Heartbeater}, Callback, Length) -> - ok = rabbit_heartbeat:pause_monitor(Heartbeater), - State#v1{callback = Callback, recv_length = Length, recv_ref = none}; -switch_callback(State, Callback, Length) -> - Ref = inet_op(fun () -> rabbit_net:async_recv( - State#v1.sock, Length, infinity) end), - State#v1{callback = Callback, recv_length = Length, recv_ref = Ref}. - -terminate(Explanation, State) when ?IS_RUNNING(State) -> - {normal, send_exception(State, 0, - rabbit_misc:amqp_error( - connection_forced, Explanation, [], none))}; -terminate(_Explanation, State) -> - {force, State}. - -internal_conserve_memory(true, State = #v1{connection_state = running}) -> - State#v1{connection_state = blocking}; -internal_conserve_memory(false, State = #v1{connection_state = blocking}) -> - State#v1{connection_state = running}; -internal_conserve_memory(false, State = #v1{connection_state = blocked, - heartbeater = Heartbeater, - callback = Callback, - recv_length = Length, - recv_ref = none}) -> - ok = rabbit_heartbeat:resume_monitor(Heartbeater), - switch_callback(State#v1{connection_state = running}, Callback, Length); -internal_conserve_memory(_Conserve, State) -> - State. - -close_connection(State = #v1{queue_collector = Collector, - connection = #connection{ - timeout_sec = TimeoutSec}}) -> - %% The spec says "Exclusive queues may only be accessed by the - %% current connection, and are deleted when that connection - %% closes." This does not strictly imply synchrony, but in - %% practice it seems to be what people assume. - rabbit_queue_collector:delete_all(Collector), - %% We terminate the connection after the specified interval, but - %% no later than ?CLOSING_TIMEOUT seconds. - TimeoutMillisec = - 1000 * if TimeoutSec > 0 andalso - TimeoutSec < ?CLOSING_TIMEOUT -> TimeoutSec; - true -> ?CLOSING_TIMEOUT - end, - erlang:send_after(TimeoutMillisec, self(), terminate_connection), - State#v1{connection_state = closed}. - -handle_dependent_exit(ChPid, Reason, State) -> - case termination_kind(Reason) of - controlled -> - channel_cleanup(ChPid), - maybe_close(State); - uncontrolled -> - case channel_cleanup(ChPid) of - undefined -> exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> rabbit_log:error( - "connection ~p, channel ~p - error:~n~p~n", - [self(), Channel, Reason]), - maybe_close( - handle_exception(State, Channel, Reason)) - end - end. - -channel_cleanup(ChPid) -> - case get({ch_pid, ChPid}) of - undefined -> undefined; - {Channel, MRef} -> erase({channel, Channel}), - erase({ch_pid, ChPid}), - erlang:demonitor(MRef, [flush]), - Channel - end. - -all_channels() -> [ChPid || {{ch_pid, ChPid}, _ChannelMRef} <- get()]. - -terminate_channels() -> - NChannels = - length([rabbit_channel:shutdown(ChPid) || ChPid <- all_channels()]), - if NChannels > 0 -> - Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, - TimerRef = erlang:send_after(Timeout, self(), cancel_wait), - wait_for_channel_termination(NChannels, TimerRef); - true -> ok - end. - -wait_for_channel_termination(0, TimerRef) -> - case erlang:cancel_timer(TimerRef) of - false -> receive - cancel_wait -> ok - end; - _ -> ok - end; - -wait_for_channel_termination(N, TimerRef) -> - receive - {'DOWN', _MRef, process, ChPid, Reason} -> - case channel_cleanup(ChPid) of - undefined -> - exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> - case termination_kind(Reason) of - controlled -> - ok; - uncontrolled -> - rabbit_log:error( - "connection ~p, channel ~p - " - "error while terminating:~n~p~n", - [self(), Channel, Reason]) - end, - wait_for_channel_termination(N-1, TimerRef) - end; - cancel_wait -> - exit(channel_termination_timeout) - end. - -maybe_close(State = #v1{connection_state = closing, - connection = #connection{protocol = Protocol}, - sock = Sock}) -> - case all_channels() of - [] -> - NewState = close_connection(State), - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - NewState; - _ -> State - end; -maybe_close(State) -> - State. - -termination_kind(normal) -> controlled; -termination_kind(_) -> uncontrolled. - -handle_frame(Type, 0, Payload, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}}) - when CS =:= closing; CS =:= closed -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - _Other -> State - end; -handle_frame(_Type, _Channel, _Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_frame(Type, 0, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, 0, Type, Payload}); - heartbeat -> State; - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - Other -> throw({unexpected_frame_on_channel0, Other}) - end; -handle_frame(Type, Channel, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, Channel, Type, Payload}); - heartbeat -> throw({unexpected_heartbeat_frame, Channel}); - AnalyzedFrame -> - case get({channel, Channel}) of - {ChPid, FramingState} -> - NewAState = process_channel_frame( - AnalyzedFrame, self(), - Channel, ChPid, FramingState), - put({channel, Channel}, {ChPid, NewAState}), - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - channel_cleanup(ChPid), - State; - {method, MethodName, _} -> - case (State#v1.connection_state =:= blocking - andalso - Protocol:method_has_content(MethodName)) of - true -> State#v1{connection_state = blocked}; - false -> State - end; - _ -> - State - end; - undefined -> - case ?IS_RUNNING(State) of - true -> send_to_new_channel( - Channel, AnalyzedFrame, State); - false -> throw({channel_frame_while_starting, - Channel, State#v1.connection_state, - AnalyzedFrame}) - end - end - end. - -handle_input(frame_header, <>, State) -> - ensure_stats_timer( - switch_callback(State, {frame_payload, Type, Channel, PayloadSize}, - PayloadSize + 1)); - -handle_input({frame_payload, Type, Channel, PayloadSize}, - PayloadAndMarker, State) -> - case PayloadAndMarker of - <> -> - handle_frame(Type, Channel, Payload, - switch_callback(State, frame_header, 7)); - _ -> - throw({bad_payload, Type, Channel, PayloadSize, PayloadAndMarker}) - end; - -%% The two rules pertaining to version negotiation: -%% -%% * If the server cannot support the protocol specified in the -%% protocol header, it MUST respond with a valid protocol header and -%% then close the socket connection. -%% -%% * The server MUST provide a protocol version that is lower than or -%% equal to that requested by the client in the protocol header. -handle_input(handshake, <<"AMQP", 0, 0, 9, 1>>, State) -> - start_connection({0, 9, 1}, rabbit_framing_amqp_0_9_1, State); - -%% This is the protocol header for 0-9, which we can safely treat as -%% though it were 0-9-1. -handle_input(handshake, <<"AMQP", 1, 1, 0, 9>>, State) -> - start_connection({0, 9, 0}, rabbit_framing_amqp_0_9_1, State); - -%% This is what most clients send for 0-8. The 0-8 spec, confusingly, -%% defines the version as 8-0. -handle_input(handshake, <<"AMQP", 1, 1, 8, 0>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -%% The 0-8 spec as on the AMQP web site actually has this as the -%% protocol header; some libraries e.g., py-amqplib, send it when they -%% want 0-8. -handle_input(handshake, <<"AMQP", 1, 1, 9, 1>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -handle_input(handshake, <<"AMQP", A, B, C, D>>, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_version, A, B, C, D}); - -handle_input(handshake, Other, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_header, Other}); - -handle_input(Callback, Data, _State) -> - throw({bad_input, Callback, Data}). - -%% Offer a protocol version to the client. Connection.start only -%% includes a major and minor version number, Luckily 0-9 and 0-9-1 -%% are similar enough that clients will be happy with either. -start_connection({ProtocolMajor, ProtocolMinor, _ProtocolRevision}, - Protocol, - State = #v1{sock = Sock, connection = Connection}) -> - Start = #'connection.start'{ - version_major = ProtocolMajor, - version_minor = ProtocolMinor, - server_properties = server_properties(Protocol), - mechanisms = auth_mechanisms_binary(Sock), - locales = <<"en_US">> }, - ok = send_on_channel0(Sock, Start, Protocol), - switch_callback(State#v1{connection = Connection#connection{ - timeout_sec = ?NORMAL_TIMEOUT, - protocol = Protocol}, - connection_state = starting}, - frame_header, 7). - -refuse_connection(Sock, Exception) -> - ok = inet_op(fun () -> rabbit_net:send(Sock, <<"AMQP",0,0,9,1>>) end), - throw(Exception). - -ensure_stats_timer(State = #v1{stats_timer = StatsTimer, - connection_state = running}) -> - Self = self(), - State#v1{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(Self) end)}; -ensure_stats_timer(State) -> - State. - -%%-------------------------------------------------------------------------- - -handle_method0(MethodName, FieldsBin, - State = #v1{connection = #connection{protocol = Protocol}}) -> - HandleException = - fun(R) -> - case ?IS_RUNNING(State) of - true -> send_exception(State, 0, R); - %% We don't trust the client at this point - force - %% them to wait for a bit so they can't DOS us with - %% repeated failed logins etc. - false -> timer:sleep(?SILENT_CLOSE_DELAY * 1000), - throw({channel0_error, State#v1.connection_state, R}) - end - end, - try - handle_method0(Protocol:decode_method_fields(MethodName, FieldsBin), - State) - catch exit:#amqp_error{method = none} = Reason -> - HandleException(Reason#amqp_error{method = MethodName}); - Type:Reason -> - HandleException({Type, Reason, MethodName, erlang:get_stacktrace()}) - end. - -handle_method0(#'connection.start_ok'{mechanism = Mechanism, - response = Response, - client_properties = ClientProperties}, - State0 = #v1{connection_state = starting, - connection = Connection, - sock = Sock}) -> - AuthMechanism = auth_mechanism_to_module(Mechanism, Sock), - Capabilities = - case rabbit_misc:table_lookup(ClientProperties, <<"capabilities">>) of - {table, Capabilities1} -> Capabilities1; - _ -> [] - end, - State = State0#v1{auth_mechanism = AuthMechanism, - auth_state = AuthMechanism:init(Sock), - connection_state = securing, - connection = - Connection#connection{ - client_properties = ClientProperties, - capabilities = Capabilities}}, - auth_phase(Response, State); - -handle_method0(#'connection.secure_ok'{response = Response}, - State = #v1{connection_state = securing}) -> - auth_phase(Response, State); - -handle_method0(#'connection.tune_ok'{frame_max = FrameMax, - heartbeat = ClientHeartbeat}, - State = #v1{connection_state = tuning, - connection = Connection, - sock = Sock, - start_heartbeat_fun = SHF}) -> - ServerFrameMax = server_frame_max(), - if FrameMax /= 0 andalso FrameMax < ?FRAME_MIN_SIZE -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w < ~w min size", - [FrameMax, ?FRAME_MIN_SIZE]); - ServerFrameMax /= 0 andalso FrameMax > ServerFrameMax -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w > ~w max size", - [FrameMax, ServerFrameMax]); - true -> - Frame = rabbit_binary_generator:build_heartbeat_frame(), - SendFun = fun() -> catch rabbit_net:send(Sock, Frame) end, - Parent = self(), - ReceiveFun = fun() -> Parent ! timeout end, - Heartbeater = SHF(Sock, ClientHeartbeat, SendFun, - ClientHeartbeat, ReceiveFun), - State#v1{connection_state = opening, - connection = Connection#connection{ - timeout_sec = ClientHeartbeat, - frame_max = FrameMax}, - heartbeater = Heartbeater} - end; - -handle_method0(#'connection.open'{virtual_host = VHostPath}, - - State = #v1{connection_state = opening, - connection = Connection = #connection{ - user = User, - protocol = Protocol}, - sock = Sock, - stats_timer = StatsTimer}) -> - ok = rabbit_access_control:check_vhost_access(User, VHostPath), - NewConnection = Connection#connection{vhost = VHostPath}, - ok = send_on_channel0(Sock, #'connection.open_ok'{}, Protocol), - State1 = internal_conserve_memory( - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - State#v1{connection_state = running, - connection = NewConnection}), - rabbit_event:notify(connection_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State1) end), - State1; -handle_method0(#'connection.close'{}, State) when ?IS_RUNNING(State) -> - lists:foreach(fun rabbit_channel:shutdown/1, all_channels()), - maybe_close(State#v1{connection_state = closing}); -handle_method0(#'connection.close'{}, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}, - sock = Sock}) - when CS =:= closing; CS =:= closed -> - %% We're already closed or closing, so we don't need to cleanup - %% anything. - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - State; -handle_method0(#'connection.close_ok'{}, - State = #v1{connection_state = closed}) -> - self() ! terminate_connection, - State; -handle_method0(_Method, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_method0(_Method, #v1{connection_state = S}) -> - rabbit_misc:protocol_error( - channel_error, "unexpected method in connection state ~w", [S]). - -%% Compute frame_max for this instance. Could simply use 0, but breaks -%% QPid Java client. -server_frame_max() -> - {ok, FrameMax} = application:get_env(rabbit, frame_max), - FrameMax. - -send_on_channel0(Sock, Method, Protocol) -> - ok = rabbit_writer:internal_send_command(Sock, 0, Method, Protocol). - -auth_mechanism_to_module(TypeBin, Sock) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown authentication mechanism '~s'", - [TypeBin]); - T -> - case {lists:member(T, auth_mechanisms(Sock)), - rabbit_registry:lookup_module(auth_mechanism, T)} of - {true, {ok, Module}} -> - Module; - _ -> - rabbit_misc:protocol_error( - command_invalid, - "invalid authentication mechanism '~s'", [T]) - end - end. - -auth_mechanisms(Sock) -> - {ok, Configured} = application:get_env(auth_mechanisms), - [Name || {Name, Module} <- rabbit_registry:lookup_all(auth_mechanism), - Module:should_offer(Sock), lists:member(Name, Configured)]. - -auth_mechanisms_binary(Sock) -> - list_to_binary( - string:join([atom_to_list(A) || A <- auth_mechanisms(Sock)], " ")). - -auth_phase(Response, - State = #v1{auth_mechanism = AuthMechanism, - auth_state = AuthState, - connection = Connection = - #connection{protocol = Protocol}, - sock = Sock}) -> - case AuthMechanism:handle_response(Response, AuthState) of - {refused, Msg, Args} -> - rabbit_misc:protocol_error( - access_refused, "~s login refused: ~s", - [proplists:get_value(name, AuthMechanism:description()), - io_lib:format(Msg, Args)]); - {protocol_error, Msg, Args} -> - rabbit_misc:protocol_error(syntax_error, Msg, Args); - {challenge, Challenge, AuthState1} -> - Secure = #'connection.secure'{challenge = Challenge}, - ok = send_on_channel0(Sock, Secure, Protocol), - State#v1{auth_state = AuthState1}; - {ok, User} -> - Tune = #'connection.tune'{channel_max = 0, - frame_max = server_frame_max(), - heartbeat = 0}, - ok = send_on_channel0(Sock, Tune, Protocol), - State#v1{connection_state = tuning, - connection = Connection#connection{user = User}} - end. - -%%-------------------------------------------------------------------------- - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, #v1{}) -> - self(); -i(address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({A, _}) -> A end, Sock); -i(port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({_, P}) -> P end, Sock); -i(peer_address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({A, _}) -> A end, Sock); -i(peer_port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({_, P}) -> P end, Sock); -i(ssl, #v1{sock = Sock}) -> - rabbit_net:is_ssl(Sock); -i(ssl_protocol, #v1{sock = Sock}) -> - ssl_info(fun ({P, _}) -> P end, Sock); -i(ssl_key_exchange, #v1{sock = Sock}) -> - ssl_info(fun ({_, {K, _, _}}) -> K end, Sock); -i(ssl_cipher, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, C, _}}) -> C end, Sock); -i(ssl_hash, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, _, H}}) -> H end, Sock); -i(peer_cert_issuer, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_issuer/1, Sock); -i(peer_cert_subject, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_subject/1, Sock); -i(peer_cert_validity, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_validity/1, Sock); -i(SockStat, #v1{sock = Sock}) when SockStat =:= recv_oct; - SockStat =:= recv_cnt; - SockStat =:= send_oct; - SockStat =:= send_cnt; - SockStat =:= send_pend -> - socket_info(fun () -> rabbit_net:getstat(Sock, [SockStat]) end, - fun ([{_, I}]) -> I end); -i(state, #v1{connection_state = S}) -> - S; -i(channels, #v1{}) -> - length(all_channels()); -i(protocol, #v1{connection = #connection{protocol = none}}) -> - none; -i(protocol, #v1{connection = #connection{protocol = Protocol}}) -> - Protocol:version(); -i(auth_mechanism, #v1{auth_mechanism = none}) -> - none; -i(auth_mechanism, #v1{auth_mechanism = Mechanism}) -> - proplists:get_value(name, Mechanism:description()); -i(user, #v1{connection = #connection{user = #user{username = Username}}}) -> - Username; -i(user, #v1{connection = #connection{user = none}}) -> - ''; -i(vhost, #v1{connection = #connection{vhost = VHost}}) -> - VHost; -i(timeout, #v1{connection = #connection{timeout_sec = Timeout}}) -> - Timeout; -i(frame_max, #v1{connection = #connection{frame_max = FrameMax}}) -> - FrameMax; -i(client_properties, #v1{connection = #connection{ - client_properties = ClientProperties}}) -> - ClientProperties; -i(Item, #v1{}) -> - throw({bad_argument, Item}). - -socket_info(Get, Select, Sock) -> - socket_info(fun() -> Get(Sock) end, Select). - -socket_info(Get, Select) -> - case Get() of - {ok, T} -> Select(T); - {error, _} -> '' - end. - -ssl_info(F, Sock) -> - %% The first ok form is R14 - %% The second is R13 - the extra term is exportability (by inspection, - %% the docs are wrong) - case rabbit_net:ssl_info(Sock) of - nossl -> ''; - {error, _} -> ''; - {ok, {P, {K, C, H}}} -> F({P, {K, C, H}}); - {ok, {P, {K, C, H, _}}} -> F({P, {K, C, H}}) - end. - -cert_info(F, Sock) -> - case rabbit_net:peercert(Sock) of - nossl -> ''; - {error, no_peercert} -> ''; - {ok, Cert} -> list_to_binary(F(Cert)) - end. - -%%-------------------------------------------------------------------------- - -send_to_new_channel(Channel, AnalyzedFrame, State) -> - #v1{sock = Sock, queue_collector = Collector, - channel_sup_sup_pid = ChanSupSup, - connection = #connection{protocol = Protocol, - frame_max = FrameMax, - user = User, - vhost = VHost, - capabilities = Capabilities}} = State, - {ok, _ChSupPid, {ChPid, AState}} = - rabbit_channel_sup_sup:start_channel( - ChanSupSup, {tcp, Sock, Channel, FrameMax, self(), Protocol, User, - VHost, Capabilities, Collector}), - MRef = erlang:monitor(process, ChPid), - NewAState = process_channel_frame(AnalyzedFrame, self(), - Channel, ChPid, AState), - put({channel, Channel}, {ChPid, NewAState}), - put({ch_pid, ChPid}, {Channel, MRef}), - State. - -process_channel_frame(Frame, ErrPid, Channel, ChPid, AState) -> - case rabbit_command_assembler:process(Frame, AState) of - {ok, NewAState} -> NewAState; - {ok, Method, NewAState} -> rabbit_channel:do(ChPid, Method), - NewAState; - {ok, Method, Content, NewAState} -> rabbit_channel:do(ChPid, - Method, Content), - NewAState; - {error, Reason} -> ErrPid ! {channel_exit, Channel, - Reason}, - AState - end. - -handle_exception(State = #v1{connection_state = closed}, _Channel, _Reason) -> - State; -handle_exception(State, Channel, Reason) -> - send_exception(State, Channel, Reason). - -send_exception(State = #v1{connection = #connection{protocol = Protocol}}, - Channel, Reason) -> - {0, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - terminate_channels(), - State1 = close_connection(State), - ok = rabbit_writer:internal_send_command( - State1#v1.sock, 0, CloseMethod, Protocol), - State1. - -internal_emit_stats(State = #v1{stats_timer = StatsTimer}) -> - rabbit_event:notify(connection_stats, infos(?STATISTICS_KEYS, State)), - State#v1{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}. diff --git a/src/rabbit_registry.erl b/src/rabbit_registry.erl deleted file mode 100644 index 9821ae7b..00000000 --- a/src/rabbit_registry.erl +++ /dev/null @@ -1,124 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_registry). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --export([register/3, binary_to_type/1, lookup_module/2, lookup_all/1]). - --define(SERVER, ?MODULE). --define(ETS_NAME, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/3 :: (atom(), binary(), atom()) -> 'ok'). --spec(binary_to_type/1 :: - (binary()) -> atom() | rabbit_types:error('not_found')). --spec(lookup_module/2 :: - (atom(), atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). --spec(lookup_all/1 :: (atom()) -> [{atom(), atom()}]). - --endif. - -%%--------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -register(Class, TypeName, ModuleName) -> - gen_server:call(?SERVER, {register, Class, TypeName, ModuleName}, infinity). - -%% This is used with user-supplied arguments (e.g., on exchange -%% declare), so we restrict it to existing atoms only. This means it -%% can throw a badarg, indicating that the type cannot have been -%% registered. -binary_to_type(TypeBin) when is_binary(TypeBin) -> - case catch list_to_existing_atom(binary_to_list(TypeBin)) of - {'EXIT', {badarg, _}} -> {error, not_found}; - TypeAtom -> TypeAtom - end. - -lookup_module(Class, T) when is_atom(T) -> - case ets:lookup(?ETS_NAME, {Class, T}) of - [{_, Module}] -> - {ok, Module}; - [] -> - {error, not_found} - end. - -lookup_all(Class) -> - [{K, V} || [K, V] <- ets:match(?ETS_NAME, {{Class, '$1'}, '$2'})]. - -%%--------------------------------------------------------------------------- - -internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> - list_to_atom(binary_to_list(TypeBin)). - -internal_register(Class, TypeName, ModuleName) - when is_atom(Class), is_binary(TypeName), is_atom(ModuleName) -> - ok = sanity_check_module(class_module(Class), ModuleName), - true = ets:insert(?ETS_NAME, - {{Class, internal_binary_to_type(TypeName)}, ModuleName}), - ok. - -sanity_check_module(ClassModule, Module) -> - case catch lists:member(ClassModule, - lists:flatten( - [Bs || {Attr, Bs} <- - Module:module_info(attributes), - Attr =:= behavior orelse - Attr =:= behaviour])) of - {'EXIT', {undef, _}} -> {error, not_module}; - false -> {error, {not_type, ClassModule}}; - true -> ok - end. - -class_module(exchange) -> rabbit_exchange_type; -class_module(auth_mechanism) -> rabbit_auth_mechanism. - -%%--------------------------------------------------------------------------- - -init([]) -> - ?ETS_NAME = ets:new(?ETS_NAME, [protected, set, named_table]), - {ok, none}. - -handle_call({register, Class, TypeName, ModuleName}, _From, State) -> - ok = internal_register(Class, TypeName, ModuleName), - {reply, ok, State}; - -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_restartable_sup.erl b/src/rabbit_restartable_sup.erl deleted file mode 100644 index 0491244b..00000000 --- a/src/rabbit_restartable_sup.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_restartable_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -start_link(Name, {_M, _F, _A} = Fun) -> - supervisor:start_link({local, Name}, ?MODULE, [Fun]). - -init([{Mod, _F, _A} = Fun]) -> - {ok, {{one_for_one, 10, 10}, - [{Mod, Fun, transient, ?MAX_WAIT, worker, [Mod]}]}}. diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl deleted file mode 100644 index f6a1c92f..00000000 --- a/src/rabbit_router.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_router). --include_lib("stdlib/include/qlc.hrl"). --include("rabbit.hrl"). - --export([deliver/2, match_bindings/2, match_routing_key/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([routing_key/0, routing_result/0, match_result/0]). - --type(routing_key() :: binary()). --type(routing_result() :: 'routed' | 'unroutable' | 'not_delivered'). --type(qpids() :: [pid()]). --type(match_result() :: [rabbit_types:binding_destination()]). - --spec(deliver/2 :: ([rabbit_amqqueue:name()], rabbit_types:delivery()) -> - {routing_result(), qpids()}). --spec(match_bindings/2 :: (rabbit_types:binding_source(), - fun ((rabbit_types:binding()) -> boolean())) -> - match_result()). --spec(match_routing_key/2 :: (rabbit_types:binding_source(), - [routing_key()] | ['_']) -> - match_result()). - --endif. - -%%---------------------------------------------------------------------------- - -deliver(QNames, Delivery = #delivery{mandatory = false, - immediate = false}) -> - %% optimisation: when Mandatory = false and Immediate = false, - %% rabbit_amqqueue:deliver will deliver the message to the queue - %% process asynchronously, and return true, which means all the - %% QPids will always be returned. It is therefore safe to use a - %% fire-and-forget cast here and return the QPids - the semantics - %% is preserved. This scales much better than the non-immediate - %% case below. - QPids = lookup_qpids(QNames), - delegate:invoke_no_result( - QPids, fun (Pid) -> rabbit_amqqueue:deliver(Pid, Delivery) end), - {routed, QPids}; - -deliver(QNames, Delivery = #delivery{mandatory = Mandatory, - immediate = Immediate}) -> - QPids = lookup_qpids(QNames), - {Success, _} = - delegate:invoke(QPids, - fun (Pid) -> - rabbit_amqqueue:deliver(Pid, Delivery) - end), - {Routed, Handled} = - lists:foldl(fun fold_deliveries/2, {false, []}, Success), - check_delivery(Mandatory, Immediate, {Routed, Handled}). - - -%% TODO: Maybe this should be handled by a cursor instead. -%% TODO: This causes a full scan for each entry with the same source -match_bindings(SrcName, Match) -> - Query = qlc:q([DestinationName || - #route{binding = Binding = #binding{ - source = SrcName1, - destination = DestinationName}} <- - mnesia:table(rabbit_route), - SrcName == SrcName1, - Match(Binding)]), - mnesia:async_dirty(fun qlc:e/1, [Query]). - -match_routing_key(SrcName, [RoutingKey]) -> - MatchHead = #route{binding = #binding{source = SrcName, - destination = '$1', - key = RoutingKey, - _ = '_'}}, - mnesia:dirty_select(rabbit_route, [{MatchHead, [], ['$1']}]); -match_routing_key(SrcName, [_|_] = RoutingKeys) -> - Condition = list_to_tuple(['orelse' | [{'=:=', '$2', RKey} || - RKey <- RoutingKeys]]), - MatchHead = #route{binding = #binding{source = SrcName, - destination = '$1', - key = '$2', - _ = '_'}}, - mnesia:dirty_select(rabbit_route, [{MatchHead, [Condition], ['$1']}]). - - - -%%-------------------------------------------------------------------- - -fold_deliveries({Pid, true},{_, Handled}) -> {true, [Pid|Handled]}; -fold_deliveries({_, false},{_, Handled}) -> {true, Handled}. - -%% check_delivery(Mandatory, Immediate, {WasRouted, QPids}) -check_delivery(true, _ , {false, []}) -> {unroutable, []}; -check_delivery(_ , true, {_ , []}) -> {not_delivered, []}; -check_delivery(_ , _ , {_ , Qs}) -> {routed, Qs}. - -lookup_qpids(QNames) -> - lists:foldl(fun (QName, QPids) -> - case mnesia:dirty_read({rabbit_queue, QName}) of - [#amqqueue{pid = QPid}] -> [QPid | QPids]; - [] -> QPids - end - end, [], QNames). diff --git a/src/rabbit_sasl_report_file_h.erl b/src/rabbit_sasl_report_file_h.erl deleted file mode 100644 index 6f3c5c75..00000000 --- a/src/rabbit_sasl_report_file_h.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sasl_report_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_sasl_report_file_h is a wrapper around the sasl_report_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers and performing -%% log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "sasl log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without -%% doing any log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init({File, sasl_error_logger_type()}). - -handle_event(Event, State) -> - sasl_report_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - sasl_report_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - sasl_report_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - sasl_report_file_h:terminate(Reason, State). - -code_change(_OldVsn, State, _Extra) -> - %% There is no sasl_report_file_h:code_change/3 - {ok, State}. - -%%---------------------------------------------------------------------- - -sasl_error_logger_type() -> - case application:get_env(sasl, errlog_type) of - {ok, error} -> error; - {ok, progress} -> progress; - {ok, all} -> all; - {ok, Bad} -> throw({error, {wrong_errlog_type, Bad}}); - _ -> all - end. diff --git a/src/rabbit_ssl.erl b/src/rabbit_ssl.erl deleted file mode 100644 index 1953b6b8..00000000 --- a/src/rabbit_ssl.erl +++ /dev/null @@ -1,173 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_ssl). - --include("rabbit.hrl"). - --include_lib("public_key/include/public_key.hrl"). - --export([peer_cert_issuer/1, peer_cert_subject/1, peer_cert_validity/1]). --export([peer_cert_subject_item/2]). - -%%-------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([certificate/0]). - --type(certificate() :: binary()). - --spec(peer_cert_issuer/1 :: (certificate()) -> string()). --spec(peer_cert_subject/1 :: (certificate()) -> string()). --spec(peer_cert_validity/1 :: (certificate()) -> string()). --spec(peer_cert_subject_item/2 :: - (certificate(), tuple()) -> string() | 'not_found'). - --endif. - -%%-------------------------------------------------------------------------- -%% High-level functions used by reader -%%-------------------------------------------------------------------------- - -%% Return a string describing the certificate's issuer. -peer_cert_issuer(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - issuer = Issuer }}) -> - format_rdn_sequence(Issuer) - end, Cert). - -%% Return a string describing the certificate's subject, as per RFC4514. -peer_cert_subject(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - format_rdn_sequence(Subject) - end, Cert). - -%% Return a part of the certificate's subject. -peer_cert_subject_item(Cert, Type) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - find_by_type(Type, Subject) - end, Cert). - -%% Return a string describing the certificate's validity. -peer_cert_validity(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - validity = {'Validity', Start, End} }}) -> - lists:flatten( - io_lib:format("~s - ~s", [format_asn1_value(Start), - format_asn1_value(End)])) - end, Cert). - -%%-------------------------------------------------------------------------- - -cert_info(F, Cert) -> - F(case public_key:pkix_decode_cert(Cert, otp) of - {ok, DecCert} -> DecCert; %%pre R14B - DecCert -> DecCert %%R14B onwards - end). - -find_by_type(Type, {rdnSequence, RDNs}) -> - case [V || #'AttributeTypeAndValue'{type = T, value = V} - <- lists:flatten(RDNs), - T == Type] of - [{printableString, S}] -> S; - [] -> not_found - end. - -%%-------------------------------------------------------------------------- -%% Formatting functions -%%-------------------------------------------------------------------------- - -%% Format and rdnSequence as a RFC4514 subject string. -format_rdn_sequence({rdnSequence, Seq}) -> - string:join(lists:reverse([format_complex_rdn(RDN) || RDN <- Seq]), ","). - -%% Format an RDN set. -format_complex_rdn(RDNs) -> - string:join([format_rdn(RDN) || RDN <- RDNs], "+"). - -%% Format an RDN. If the type name is unknown, use the dotted decimal -%% representation. See RFC4514, section 2.3. -format_rdn(#'AttributeTypeAndValue'{type = T, value = V}) -> - FV = escape_rdn_value(format_asn1_value(V)), - Fmts = [{?'id-at-surname' , "SN"}, - {?'id-at-givenName' , "GIVENNAME"}, - {?'id-at-initials' , "INITIALS"}, - {?'id-at-generationQualifier' , "GENERATIONQUALIFIER"}, - {?'id-at-commonName' , "CN"}, - {?'id-at-localityName' , "L"}, - {?'id-at-stateOrProvinceName' , "ST"}, - {?'id-at-organizationName' , "O"}, - {?'id-at-organizationalUnitName' , "OU"}, - {?'id-at-title' , "TITLE"}, - {?'id-at-countryName' , "C"}, - {?'id-at-serialNumber' , "SERIALNUMBER"}, - {?'id-at-pseudonym' , "PSEUDONYM"}, - {?'id-domainComponent' , "DC"}, - {?'id-emailAddress' , "EMAILADDRESS"}, - {?'street-address' , "STREET"}], - case proplists:lookup(T, Fmts) of - {_, Fmt} -> - io_lib:format(Fmt ++ "=~s", [FV]); - none when is_tuple(T) -> - TypeL = [io_lib:format("~w", [X]) || X <- tuple_to_list(T)], - io_lib:format("~s:~s", [string:join(TypeL, "."), FV]); - none -> - io_lib:format("~p:~s", [T, FV]) - end. - -%% Escape a string as per RFC4514. -escape_rdn_value(V) -> - escape_rdn_value(V, start). - -escape_rdn_value([], _) -> - []; -escape_rdn_value([C | S], start) when C =:= $ ; C =:= $# -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value(S, start) -> - escape_rdn_value(S, middle); -escape_rdn_value([$ ], middle) -> - [$\\, $ ]; -escape_rdn_value([C | S], middle) when C =:= $"; C =:= $+; C =:= $,; C =:= $;; - C =:= $<; C =:= $>; C =:= $\\ -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value([C | S], middle) when C < 32 ; C =:= 127 -> - %% only U+0000 needs escaping, but for display purposes it's handy - %% to escape all non-printable chars - lists:flatten(io_lib:format("\\~2.16.0B", [C])) ++ - escape_rdn_value(S, middle); -escape_rdn_value([C | S], middle) -> - [C | escape_rdn_value(S, middle)]. - -%% Get the string representation of an OTPCertificate field. -format_asn1_value({ST, S}) when ST =:= teletexString; ST =:= printableString; - ST =:= universalString; ST =:= utf8String; - ST =:= bmpString -> - if is_binary(S) -> binary_to_list(S); - true -> S - end; -format_asn1_value({utcTime, [Y1, Y2, M1, M2, D1, D2, H1, H2, - Min1, Min2, S1, S2, $Z]}) -> - io_lib:format("20~c~c-~c~c-~c~cT~c~c:~c~c:~c~cZ", - [Y1, Y2, M1, M2, D1, D2, H1, H2, Min1, Min2, S1, S2]); -format_asn1_value(V) -> - io_lib:format("~p", [V]). diff --git a/src/rabbit_sup.erl b/src/rabbit_sup.erl deleted file mode 100644 index 508b127e..00000000 --- a/src/rabbit_sup.erl +++ /dev/null @@ -1,64 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sup). - --behaviour(supervisor). - --export([start_link/0, start_child/1, start_child/2, start_child/3, - start_restartable_child/1, start_restartable_child/2, stop_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Mod) -> - start_child(Mod, []). - -start_child(Mod, Args) -> - start_child(Mod, Mod, Args). - -start_child(ChildId, Mod, Args) -> - {ok, _} = supervisor:start_child(?SERVER, - {ChildId, {Mod, start_link, Args}, - transient, ?MAX_WAIT, worker, [Mod]}), - ok. - -start_restartable_child(Mod) -> - start_restartable_child(Mod, []). - -start_restartable_child(Mod, Args) -> - Name = list_to_atom(atom_to_list(Mod) ++ "_sup"), - {ok, _} = supervisor:start_child( - ?SERVER, - {Name, {rabbit_restartable_sup, start_link, - [Name, {Mod, start_link, Args}]}, - transient, infinity, supervisor, [rabbit_restartable_sup]}), - ok. - -stop_child(ChildId) -> - case supervisor:terminate_child(?SERVER, ChildId) of - ok -> supervisor:delete_child(?SERVER, ChildId); - E -> E - end. - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl deleted file mode 100644 index 930923e8..00000000 --- a/src/rabbit_tests.erl +++ /dev/null @@ -1,2433 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests). - --compile([export_all]). - --export([all_tests/0, test_parsing/0]). - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). --include_lib("kernel/include/file.hrl"). - --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). --define(CLEANUP_QUEUE_NAME, <<"cleanup-queue">>). - -test_content_prop_roundtrip(Datum, Binary) -> - Types = [element(1, E) || E <- Datum], - Values = [element(2, E) || E <- Datum], - Values = rabbit_binary_parser:parse_properties(Types, Binary), %% assertion - Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion - -all_tests() -> - passed = gm_tests:all_tests(), - application:set_env(rabbit, file_handles_high_watermark, 10, infinity), - ok = file_handle_cache:set_limit(10), - passed = test_file_handle_cache(), - passed = test_backing_queue(), - passed = test_priority_queue(), - passed = test_bpqueue(), - passed = test_pg_local(), - passed = test_unfold(), - passed = test_supervisor_delayed_restart(), - passed = test_parsing(), - passed = test_content_framing(), - passed = test_content_transcoding(), - passed = test_topic_matching(), - passed = test_log_management(), - passed = test_app_management(), - passed = test_log_management_during_startup(), - passed = test_statistics(), - passed = test_option_parser(), - passed = test_cluster_management(), - passed = test_user_management(), - passed = test_server_status(), - passed = test_confirms(), - passed = maybe_run_cluster_dependent_tests(), - passed = test_configurable_server_properties(), - passed. - -maybe_run_cluster_dependent_tests() -> - SecondaryNode = rabbit_misc:makenode("hare"), - - case net_adm:ping(SecondaryNode) of - pong -> passed = run_cluster_dependent_tests(SecondaryNode); - pang -> io:format("Skipping cluster dependent tests with node ~p~n", - [SecondaryNode]) - end, - passed. - -run_cluster_dependent_tests(SecondaryNode) -> - SecondaryNodeS = atom_to_list(SecondaryNode), - - ok = control_action(stop_app, []), - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - - io:format("Running cluster dependent tests with node ~p~n", [SecondaryNode]), - passed = test_delegates_async(SecondaryNode), - passed = test_delegates_sync(SecondaryNode), - passed = test_queue_cleanup(SecondaryNode), - passed = test_declare_on_dead_queue(SecondaryNode), - - %% we now run the tests remotely, so that code coverage on the - %% local node picks up more of the delegate - Node = node(), - Self = self(), - Remote = spawn(SecondaryNode, - fun () -> Rs = [ test_delegates_async(Node), - test_delegates_sync(Node), - test_queue_cleanup(Node), - test_declare_on_dead_queue(Node) ], - Self ! {self(), Rs} - end), - receive - {Remote, Result} -> - Result = lists:duplicate(length(Result), passed) - after 30000 -> - throw(timeout) - end, - - passed. - -test_priority_queue() -> - - false = priority_queue:is_queue(not_a_queue), - - %% empty Q - Q = priority_queue:new(), - {true, true, 0, [], []} = test_priority_queue(Q), - - %% 1-4 element no-priority Q - true = lists:all(fun (X) -> X =:= passed end, - lists:map(fun test_simple_n_element_queue/1, - lists:seq(1, 4))), - - %% 1-element priority Q - Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), - - %% 2-element same-priority Q - Q2 = priority_queue:in(bar, 1, Q1), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q2), - - %% 2-element different-priority Q - Q3 = priority_queue:in(bar, 2, Q1), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q3), - - %% 1-element negative priority Q - Q4 = priority_queue:in(foo, -1, priority_queue:new()), - {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - - %% merge 2 * 2-element multi-different-priority Qs - Q11 = priority_queue:join(Q6, Q5), - {true, false, 4, [{1, bar}, {0, foo}, {0, foo}, {0, bar}], - [bar, foo, foo, bar]} = test_priority_queue(Q11), - - %% and the other way around - Q12 = priority_queue:join(Q5, Q6), - {true, false, 4, [{1, bar}, {0, foo}, {0, bar}, {0, foo}], - [bar, foo, bar, foo]} = test_priority_queue(Q12), - - %% merge with negative priorities - Q13 = priority_queue:join(Q4, Q5), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q13), - - %% and the other way around - Q14 = priority_queue:join(Q5, Q4), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q14), - - %% joins with empty queues: - Q1 = priority_queue:join(Q, Q1), - Q1 = priority_queue:join(Q1, Q), - - %% insert with priority into non-empty zero-priority queue - Q15 = priority_queue:in(baz, 1, Q5), - {true, false, 3, [{1, baz}, {0, foo}, {0, bar}], [baz, foo, bar]} = - test_priority_queue(Q15), - - passed. - -priority_queue_in_all(Q, L) -> - lists:foldl(fun (X, Acc) -> priority_queue:in(X, Acc) end, Q, L). - -priority_queue_out_all(Q) -> - case priority_queue:out(Q) of - {empty, _} -> []; - {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] - end. - -test_priority_queue(Q) -> - {priority_queue:is_queue(Q), - priority_queue:is_empty(Q), - priority_queue:len(Q), - priority_queue:to_list(Q), - priority_queue_out_all(Q)}. - -test_bpqueue() -> - Q = bpqueue:new(), - true = bpqueue:is_empty(Q), - 0 = bpqueue:len(Q), - [] = bpqueue:to_list(Q), - - Q1 = bpqueue_test(fun bpqueue:in/3, fun bpqueue:out/1, - fun bpqueue:to_list/1, - fun bpqueue:foldl/3, fun bpqueue:map_fold_filter_l/4), - Q2 = bpqueue_test(fun bpqueue:in_r/3, fun bpqueue:out_r/1, - fun (QR) -> lists:reverse( - [{P, lists:reverse(L)} || - {P, L} <- bpqueue:to_list(QR)]) - end, - fun bpqueue:foldr/3, fun bpqueue:map_fold_filter_r/4), - - [{foo, [1, 2]}, {bar, [3]}] = bpqueue:to_list(bpqueue:join(Q, Q1)), - [{bar, [3]}, {foo, [2, 1]}] = bpqueue:to_list(bpqueue:join(Q2, Q)), - [{foo, [1, 2]}, {bar, [3, 3]}, {foo, [2,1]}] = - bpqueue:to_list(bpqueue:join(Q1, Q2)), - - [{foo, [1, 2]}, {bar, [3]}, {foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list(bpqueue:join(Q1, Q1)), - - [{foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list( - bpqueue:from_list( - [{x, []}, {foo, [1]}, {y, []}, {foo, [2]}, {bar, [3]}, {z, []}])), - - [{undefined, [a]}] = bpqueue:to_list(bpqueue:from_list([{undefined, [a]}])), - - {4, [a,b,c,d]} = - bpqueue:foldl( - fun (Prefix, Value, {Prefix, Acc}) -> - {Prefix + 1, [Value | Acc]} - end, - {0, []}, bpqueue:from_list([{0,[d]}, {1,[c]}, {2,[b]}, {3,[a]}])), - - [{bar,3}, {foo,2}, {foo,1}] = - bpqueue:foldr(fun (P, V, I) -> [{P,V} | I] end, [], Q2), - - BPQL = [{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], - BPQ = bpqueue:from_list(BPQL), - - %% no effect - {BPQL, 0} = bpqueue_mffl([none], {none, []}, BPQ), - {BPQL, 0} = bpqueue_mffl([foo,bar], {none, [1]}, BPQ), - {BPQL, 0} = bpqueue_mffl([bar], {none, [3]}, BPQ), - {BPQL, 0} = bpqueue_mffr([bar], {foo, [5]}, BPQ), - - %% process 1 item - {[{foo,[-1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([foo,bar], {foo, [2]}, BPQ), - {[{foo,[1,2,2]}, {bar,[-3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([bar], {bar, [4]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,-7]}], 1} = - bpqueue_mffr([foo,bar], {foo, [6]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4]}, {baz,[-5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffr([bar], {baz, [4]}, BPQ), - - %% change prefix - {[{bar,[-1,-2,-2,-3,-4,-5,-5,-6,-7]}], 9} = - bpqueue_mffl([foo,bar], {bar, []}, BPQ), - {[{bar,[-1,-2,-2,3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {bar, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6]}, {foo,[7]}], 5} = - bpqueue_mffl([foo], {bar, [7]}, BPQ), - {[{foo,[1,2,2,-3,-4]}, {bar,[5]}, {foo,[5,6,7]}], 2} = - bpqueue_mffl([bar], {foo, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6,-7]}], 6} = - bpqueue_mffl([foo], {bar, []}, BPQ), - {[{foo,[1,2,2,-3,-4,-5,5,6,7]}], 3} = - bpqueue_mffl([bar], {foo, []}, BPQ), - - %% edge cases - {[{foo,[-1,-2,-2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {foo, [5]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[-5,-6,-7]}], 3} = - bpqueue_mffr([foo], {foo, [2]}, BPQ), - - passed. - -bpqueue_test(In, Out, List, Fold, MapFoldFilter) -> - Q = bpqueue:new(), - {empty, _Q} = Out(Q), - - ok = Fold(fun (Prefix, Value, ok) -> {error, Prefix, Value} end, ok, Q), - {Q1M, 0} = MapFoldFilter(fun(_P) -> throw(explosion) end, - fun(_V, _N) -> throw(explosion) end, 0, Q), - [] = bpqueue:to_list(Q1M), - - Q1 = In(bar, 3, In(foo, 2, In(foo, 1, Q))), - false = bpqueue:is_empty(Q1), - 3 = bpqueue:len(Q1), - [{foo, [1, 2]}, {bar, [3]}] = List(Q1), - - {{value, foo, 1}, Q3} = Out(Q1), - {{value, foo, 2}, Q4} = Out(Q3), - {{value, bar, 3}, _Q5} = Out(Q4), - - F = fun (QN) -> - MapFoldFilter(fun (foo) -> true; - (_) -> false - end, - fun (2, _Num) -> stop; - (V, Num) -> {bar, -V, V - Num} end, - 0, QN) - end, - {Q6, 0} = F(Q), - [] = bpqueue:to_list(Q6), - {Q7, 1} = F(Q1), - [{bar, [-1]}, {foo, [2]}, {bar, [3]}] = List(Q7), - - Q1. - -bpqueue_mffl(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_l/4, FF1A, FF2A, BPQ). - -bpqueue_mffr(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_r/4, FF1A, FF2A, BPQ). - -bpqueue_mff(Fold, FF1A, FF2A, BPQ) -> - FF1 = fun (Prefixes) -> - fun (P) -> lists:member(P, Prefixes) end - end, - FF2 = fun ({Prefix, Stoppers}) -> - fun (Val, Num) -> - case lists:member(Val, Stoppers) of - true -> stop; - false -> {Prefix, -Val, 1 + Num} - end - end - end, - Queue_to_list = fun ({LHS, RHS}) -> {bpqueue:to_list(LHS), RHS} end, - - Queue_to_list(Fold(FF1(FF1A), FF2(FF2A), 0, BPQ)). - -test_simple_n_element_queue(N) -> - Items = lists:seq(1, N), - Q = priority_queue_in_all(priority_queue:new(), Items), - ToListRes = [{0, X} || X <- Items], - {true, false, N, ToListRes, Items} = test_priority_queue(Q), - passed. - -test_pg_local() -> - [P, Q] = [spawn(fun () -> receive X -> X end end) || _ <- [x, x]], - check_pg_local(ok, [], []), - check_pg_local(pg_local:join(a, P), [P], []), - check_pg_local(pg_local:join(b, P), [P], [P]), - check_pg_local(pg_local:join(a, P), [P, P], [P]), - check_pg_local(pg_local:join(a, Q), [P, P, Q], [P]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(a, P), [P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(b, P), [P, Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - [begin X ! done, - Ref = erlang:monitor(process, X), - receive {'DOWN', Ref, process, X, _Info} -> ok end - end || X <- [P, Q]], - check_pg_local(ok, [], []), - passed. - -check_pg_local(ok, APids, BPids) -> - ok = pg_local:sync(), - [true, true] = [lists:sort(Pids) == lists:sort(pg_local:get_members(Key)) || - {Key, Pids} <- [{a, APids}, {b, BPids}]]. - -test_unfold() -> - {[], test} = rabbit_misc:unfold(fun (_V) -> false end, test), - List = lists:seq(2,20,2), - {List, 0} = rabbit_misc:unfold(fun (0) -> false; - (N) -> {true, N*2, N-1} - end, 10), - passed. - -test_parsing() -> - passed = test_content_properties(), - passed = test_field_values(), - passed. - -test_content_properties() -> - test_content_prop_roundtrip([], <<0, 0>>), - test_content_prop_roundtrip([{bit, true}, {bit, false}, {bit, true}, {bit, false}], - <<16#A0, 0>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {bit, true}, {octet, undefined}, - {bit, true}], - <<16#E8,0,123>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {octet, 123}, {bit, true}], - <<16#F0,0,123,123>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, <<"hi">>}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#F8,0,2,"hi",16#D4,16#31>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, undefined}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#B8,0,16#D4,16#31>>), - test_content_prop_roundtrip([{table, [{<<"a signedint">>, signedint, 12345678}, - {<<"a longstr">>, longstr, <<"yes please">>}, - {<<"a decimal">>, decimal, {123, 12345678}}, - {<<"a timestamp">>, timestamp, 123456789012345}, - {<<"a nested table">>, table, - [{<<"one">>, signedint, 1}, - {<<"two">>, signedint, 2}]}]}], - << - %% property-flags - 16#8000:16, - - %% property-list: - - %% table - 117:32, % table length in bytes - - 11,"a signedint", % name - "I",12345678:32, % type and value - - 9,"a longstr", - "S",10:32,"yes please", - - 9,"a decimal", - "D",123,12345678:32, - - 11,"a timestamp", - "T", 123456789012345:64, - - 14,"a nested table", - "F", - 18:32, - - 3,"one", - "I",1:32, - - 3,"two", - "I",2:32 >>), - case catch rabbit_binary_parser:parse_properties([bit, bit, bit, bit], <<16#A0,0,1>>) of - {'EXIT', content_properties_binary_overflow} -> passed; - V -> exit({got_success_but_expected_failure, V}) - end. - -test_field_values() -> - %% FIXME this does not test inexact numbers (double and float) yet, - %% because they won't pass the equality assertions - test_content_prop_roundtrip( - [{table, [{<<"longstr">>, longstr, <<"Here is a long string">>}, - {<<"signedint">>, signedint, 12345}, - {<<"decimal">>, decimal, {3, 123456}}, - {<<"timestamp">>, timestamp, 109876543209876}, - {<<"table">>, table, [{<<"one">>, signedint, 54321}, - {<<"two">>, longstr, <<"A long string">>}]}, - {<<"byte">>, byte, 255}, - {<<"long">>, long, 1234567890}, - {<<"short">>, short, 655}, - {<<"bool">>, bool, true}, - {<<"binary">>, binary, <<"a binary string">>}, - {<<"void">>, void, undefined}, - {<<"array">>, array, [{signedint, 54321}, - {longstr, <<"A long string">>}]} - - ]}], - << - %% property-flags - 16#8000:16, - %% table length in bytes - 228:32, - - 7,"longstr", "S", 21:32, "Here is a long string", % = 34 - 9,"signedint", "I", 12345:32/signed, % + 15 = 49 - 7,"decimal", "D", 3, 123456:32, % + 14 = 63 - 9,"timestamp", "T", 109876543209876:64, % + 19 = 82 - 5,"table", "F", 31:32, % length of table % + 11 = 93 - 3,"one", "I", 54321:32, % + 9 = 102 - 3,"two", "S", 13:32, "A long string", % + 22 = 124 - 4,"byte", "b", 255:8, % + 7 = 131 - 4,"long", "l", 1234567890:64, % + 14 = 145 - 5,"short", "s", 655:16, % + 9 = 154 - 4,"bool", "t", 1, % + 7 = 161 - 6,"binary", "x", 15:32, "a binary string", % + 27 = 188 - 4,"void", "V", % + 6 = 194 - 5,"array", "A", 23:32, % + 11 = 205 - "I", 54321:32, % + 5 = 210 - "S", 13:32, "A long string" % + 18 = 228 - >>), - passed. - -%% Test that content frames don't exceed frame-max -test_content_framing(FrameMax, BodyBin) -> - [Header | Frames] = - rabbit_binary_generator:build_simple_content_frames( - 1, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, BodyBin), - rabbit_framing_amqp_0_9_1), - FrameMax, - rabbit_framing_amqp_0_9_1), - %% header is formatted correctly and the size is the total of the - %% fragments - <<_FrameHeader:7/binary, _ClassAndWeight:4/binary, - BodySize:64/unsigned, _Rest/binary>> = list_to_binary(Header), - BodySize = size(BodyBin), - true = lists:all( - fun (ContentFrame) -> - FrameBinary = list_to_binary(ContentFrame), - %% assert - <<_TypeAndChannel:3/binary, - Size:32/unsigned, _Payload:Size/binary, 16#CE>> = - FrameBinary, - size(FrameBinary) =< FrameMax - end, Frames), - passed. - -test_content_framing() -> - %% no content - passed = test_content_framing(4096, <<>>), - %% easily fit in one frame - passed = test_content_framing(4096, <<"Easy">>), - %% exactly one frame (empty frame = 8 bytes) - passed = test_content_framing(11, <<"One">>), - %% more than one frame - passed = test_content_framing(11, <<"More than one frame">>), - passed. - -test_content_transcoding() -> - %% there are no guarantees provided by 'clear' - it's just a hint - ClearDecoded = fun rabbit_binary_parser:clear_decoded_content/1, - ClearEncoded = fun rabbit_binary_generator:clear_encoded_content/1, - EnsureDecoded = - fun (C0) -> - C1 = rabbit_binary_parser:ensure_content_decoded(C0), - true = C1#content.properties =/= none, - C1 - end, - EnsureEncoded = - fun (Protocol) -> - fun (C0) -> - C1 = rabbit_binary_generator:ensure_content_encoded( - C0, Protocol), - true = C1#content.properties_bin =/= none, - C1 - end - end, - %% Beyond the assertions in Ensure*, the only testable guarantee - %% is that the operations should never fail. - %% - %% If we were using quickcheck we'd simply stuff all the above - %% into a generator for sequences of operations. In the absence of - %% quickcheck we pick particularly interesting sequences that: - %% - %% - execute every op twice since they are idempotent - %% - invoke clear_decoded, clear_encoded, decode and transcode - %% with one or both of decoded and encoded content present - [begin - sequence_with_content([Op]), - sequence_with_content([ClearEncoded, Op]), - sequence_with_content([ClearDecoded, Op]) - end || Op <- [ClearDecoded, ClearEncoded, EnsureDecoded, - EnsureEncoded(rabbit_framing_amqp_0_9_1), - EnsureEncoded(rabbit_framing_amqp_0_8)]], - passed. - -sequence_with_content(Sequence) -> - lists:foldl(fun (F, V) -> F(F(V)) end, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, <<>>), - rabbit_framing_amqp_0_9_1), - Sequence). - -test_topic_matching() -> - XName = #resource{virtual_host = <<"/">>, - kind = exchange, - name = <<"test_exchange">>}, - X = #exchange{name = XName, type = topic, durable = false, - auto_delete = false, arguments = []}, - %% create - rabbit_exchange_type_topic:validate(X), - exchange_op_callback(X, create, []), - - %% add some bindings - Bindings = lists:map( - fun ({Key, Q}) -> - #binding{source = XName, - key = list_to_binary(Key), - destination = #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)}} - end, [{"a.b.c", "t1"}, - {"a.*.c", "t2"}, - {"a.#.b", "t3"}, - {"a.b.b.c", "t4"}, - {"#", "t5"}, - {"#.#", "t6"}, - {"#.b", "t7"}, - {"*.*", "t8"}, - {"a.*", "t9"}, - {"*.b.c", "t10"}, - {"a.#", "t11"}, - {"a.#.#", "t12"}, - {"b.b.c", "t13"}, - {"a.b.b", "t14"}, - {"a.b", "t15"}, - {"b.c", "t16"}, - {"", "t17"}, - {"*.*.*", "t18"}, - {"vodka.martini", "t19"}, - {"a.b.c", "t20"}, - {"*.#", "t21"}, - {"#.*.#", "t22"}, - {"*.#.#", "t23"}, - {"#.#.#", "t24"}, - {"*", "t25"}, - {"#.b.#", "t26"}]), - lists:foreach(fun (B) -> exchange_op_callback(X, add_binding, [B]) end, - Bindings), - - %% test some matches - test_topic_expect_match( - X, [{"a.b.c", ["t1", "t2", "t5", "t6", "t10", "t11", "t12", - "t18", "t20", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b", ["t3", "t5", "t6", "t7", "t8", "t9", "t11", - "t12", "t15", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b.b", ["t3", "t5", "t6", "t7", "t11", "t12", "t14", - "t18", "t21", "t22", "t23", "t24", "t26"]}, - {"", ["t5", "t6", "t17", "t24"]}, - {"b.c.c", ["t5", "t6", "t18", "t21", "t22", "t23", - "t24", "t26"]}, - {"a.a.a.a.a", ["t5", "t6", "t11", "t12", "t21", "t22", - "t23", "t24"]}, - {"vodka.gin", ["t5", "t6", "t8", "t21", "t22", "t23", - "t24"]}, - {"vodka.martini", ["t5", "t6", "t8", "t19", "t21", "t22", "t23", - "t24"]}, - {"b.b.c", ["t5", "t6", "t10", "t13", "t18", "t21", - "t22", "t23", "t24", "t26"]}, - {"nothing.here.at.all", ["t5", "t6", "t21", "t22", "t23", "t24"]}, - {"oneword", ["t5", "t6", "t21", "t22", "t23", "t24", - "t25"]}]), - - %% remove some bindings - RemovedBindings = [lists:nth(1, Bindings), lists:nth(5, Bindings), - lists:nth(11, Bindings), lists:nth(19, Bindings), - lists:nth(21, Bindings)], - exchange_op_callback(X, remove_bindings, [RemovedBindings]), - RemainingBindings = ordsets:to_list( - ordsets:subtract(ordsets:from_list(Bindings), - ordsets:from_list(RemovedBindings))), - - %% test some matches - test_topic_expect_match(X, - [{"a.b.c", ["t2", "t6", "t10", "t12", "t18", "t20", "t22", - "t23", "t24", "t26"]}, - {"a.b", ["t3", "t6", "t7", "t8", "t9", "t12", "t15", - "t22", "t23", "t24", "t26"]}, - {"a.b.b", ["t3", "t6", "t7", "t12", "t14", "t18", "t22", - "t23", "t24", "t26"]}, - {"", ["t6", "t17", "t24"]}, - {"b.c.c", ["t6", "t18", "t22", "t23", "t24", "t26"]}, - {"a.a.a.a.a", ["t6", "t12", "t22", "t23", "t24"]}, - {"vodka.gin", ["t6", "t8", "t22", "t23", "t24"]}, - {"vodka.martini", ["t6", "t8", "t22", "t23", "t24"]}, - {"b.b.c", ["t6", "t10", "t13", "t18", "t22", "t23", - "t24", "t26"]}, - {"nothing.here.at.all", ["t6", "t22", "t23", "t24"]}, - {"oneword", ["t6", "t22", "t23", "t24", "t25"]}]), - - %% remove the entire exchange - exchange_op_callback(X, delete, [RemainingBindings]), - %% none should match now - test_topic_expect_match(X, [{"a.b.c", []}, {"b.b.c", []}, {"", []}]), - passed. - -exchange_op_callback(X, Fun, ExtraArgs) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> rabbit_exchange:callback(X, Fun, [true, X] ++ ExtraArgs) end), - rabbit_exchange:callback(X, Fun, [false, X] ++ ExtraArgs). - -test_topic_expect_match(X, List) -> - lists:foreach( - fun ({Key, Expected}) -> - BinKey = list_to_binary(Key), - Res = rabbit_exchange_type_topic:route( - X, #delivery{message = #basic_message{routing_keys = - [BinKey]}}), - ExpectedRes = lists:map( - fun (Q) -> #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)} - end, Expected), - true = (lists:usort(ExpectedRes) =:= lists:usort(Res)) - end, List). - -test_app_management() -> - %% starting, stopping, status - ok = control_action(stop_app, []), - ok = control_action(stop_app, []), - ok = control_action(status, []), - ok = control_action(start_app, []), - ok = control_action(start_app, []), - ok = control_action(status, []), - passed. - -test_log_management() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - Suffix = ".1", - - %% prepare basic logs - file:delete([MainLog, Suffix]), - file:delete([SaslLog, Suffix]), - - %% simple logs reopening - ok = control_action(rotate_logs, []), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% simple log rotation - ok = control_action(rotate_logs, [Suffix]), - [true, true] = non_empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% reopening logs with log rotation performed first - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = file:rename(MainLog, [MainLog, Suffix]), - ok = file:rename(SaslLog, [SaslLog, Suffix]), - ok = test_logs_working([MainLog, Suffix], [SaslLog, Suffix]), - ok = control_action(rotate_logs, []), - ok = test_logs_working(MainLog, SaslLog), - - %% log rotation on empty file - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = control_action(rotate_logs, [Suffix]), - [true, true] = empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - - %% original main log file is not writable - ok = make_files_non_writable([MainLog]), - {error, {cannot_rotate_main_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([MainLog], Suffix), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}]), - - %% original sasl log file is not writable - ok = make_files_non_writable([SaslLog]), - {error, {cannot_rotate_sasl_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([SaslLog], Suffix), - ok = add_log_handlers([{rabbit_sasl_report_file_h, SaslLog}]), - - %% logs with suffix are not writable - ok = control_action(rotate_logs, [Suffix]), - ok = make_files_non_writable([[MainLog, Suffix], [SaslLog, Suffix]]), - ok = control_action(rotate_logs, [Suffix]), - ok = test_logs_working(MainLog, SaslLog), - - %% original log files are not writable - ok = make_files_non_writable([MainLog, SaslLog]), - {error, {{cannot_rotate_main_logs, _}, - {cannot_rotate_sasl_logs, _}}} = control_action(rotate_logs, []), - - %% logging directed to tty (handlers were removed in last test) - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = application:set_env(kernel, error_logger, tty), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% rotate logs when logging is turned off - ok = application:set_env(sasl, sasl_error_logger, false), - ok = application:set_env(kernel, error_logger, silent), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% cleanup - ok = application:set_env(sasl, sasl_error_logger, {file, SaslLog}), - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}, - {rabbit_sasl_report_file_h, SaslLog}]), - passed. - -test_log_management_during_startup() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - - %% start application with simple tty logging - ok = control_action(stop_app, []), - ok = application:set_env(kernel, error_logger, tty), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = add_log_handlers([{error_logger_tty_h, []}, - {sasl_report_tty_h, []}]), - ok = control_action(start_app, []), - - %% start application with tty logging and - %% proper handlers not installed - ok = control_action(stop_app, []), - ok = error_logger:tty(false), - ok = delete_log_handlers([sasl_report_tty_h]), - ok = case catch control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_tty_no_handlers_test}); - {error, {cannot_log_to_tty, _, _}} -> ok - end, - - %% fix sasl logging - ok = application:set_env(sasl, sasl_error_logger, - {file, SaslLog}), - - %% start application with logging to non-existing directory - TmpLog = "/tmp/rabbit-tests/test.log", - delete_file(TmpLog), - ok = application:set_env(kernel, error_logger, {file, TmpLog}), - - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = control_action(start_app, []), - - %% start application with logging to directory with no - %% write permissions - TmpDir = "/tmp/rabbit-tests", - ok = set_permissions(TmpDir, 8#00400), - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_no_write_permission_dir_test}); - {error, {cannot_log_to_file, _, _}} -> ok - end, - - %% start application with logging to a subdirectory which - %% parent directory has no write permissions - TmpTestDir = "/tmp/rabbit-tests/no-permission/test/log", - ok = application:set_env(kernel, error_logger, {file, TmpTestDir}), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotatation_parent_dirs_test}); - {error, {cannot_log_to_file, _, - {error, {cannot_create_parent_dirs, _, eacces}}}} -> ok - end, - ok = set_permissions(TmpDir, 8#00700), - ok = set_permissions(TmpLog, 8#00600), - ok = delete_file(TmpLog), - ok = file:del_dir(TmpDir), - - %% start application with standard error_logger_file_h - %% handler not installed - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% start application with standard sasl handler not installed - %% and rabbit main log handler installed correctly - ok = delete_log_handlers([rabbit_sasl_report_file_h]), - ok = control_action(start_app, []), - passed. - -test_option_parser() -> - %% command and arguments should just pass through - ok = check_get_options({["mock_command", "arg1", "arg2"], []}, - [], ["mock_command", "arg1", "arg2"]), - - %% get flags - ok = check_get_options( - {["mock_command", "arg1"], [{"-f", true}, {"-f2", false}]}, - [{flag, "-f"}, {flag, "-f2"}], ["mock_command", "arg1", "-f"]), - - %% get options - ok = check_get_options( - {["mock_command"], [{"-foo", "bar"}, {"-baz", "notbaz"}]}, - [{option, "-foo", "notfoo"}, {option, "-baz", "notbaz"}], - ["mock_command", "-foo", "bar"]), - - %% shuffled and interleaved arguments and options - ok = check_get_options( - {["a1", "a2", "a3"], [{"-o1", "hello"}, {"-o2", "noto2"}, {"-f", true}]}, - [{option, "-o1", "noto1"}, {flag, "-f"}, {option, "-o2", "noto2"}], - ["-f", "a1", "-o1", "hello", "a2", "a3"]), - - passed. - -test_cluster_management() -> - - %% 'cluster' and 'reset' should only work if the app is stopped - {error, _} = control_action(cluster, []), - {error, _} = control_action(reset, []), - {error, _} = control_action(force_reset, []), - - ok = control_action(stop_app, []), - - %% various ways of creating a standalone node - NodeS = atom_to_list(node()), - ClusteringSequence = [[], - [NodeS], - ["invalid@invalid", NodeS], - [NodeS, "invalid@invalid"]], - - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - - %% convert a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% join a non-existing cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - SecondaryNode = rabbit_misc:makenode("hare"), - case net_adm:ping(SecondaryNode) of - pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", - [SecondaryNode]) - end, - - ok = control_action(start_app, []), - passed. - -test_cluster_management2(SecondaryNode) -> - NodeS = atom_to_list(node()), - SecondaryNodeS = atom_to_list(SecondaryNode), - - %% make a disk node - ok = control_action(reset, []), - ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - - %% join cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, [SecondaryNodeS, "invalid1@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% change cluster config while remaining in same cluster - ok = control_action(force_cluster, ["invalid2@invalid", SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join non-existing cluster as a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join empty cluster as a ram node - ok = control_action(cluster, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% turn ram node into disk node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% convert a disk node into a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% turn a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% NB: this will log an inconsistent_database error, which is harmless - %% Turning cover on / off is OK even if we're not in general using cover, - %% it just turns the engine on / off, doesn't actually log anything. - cover:stop([SecondaryNode]), - true = disconnect_node(SecondaryNode), - pong = net_adm:ping(SecondaryNode), - cover:start([SecondaryNode]), - - %% leaving a cluster as a ram node - ok = control_action(reset, []), - %% ...and as a disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(reset, []), - - %% attempt to leave cluster when no other node is alive - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, SecondaryNode, [], []), - ok = control_action(stop_app, []), - {error, {no_running_cluster_nodes, _, _}} = - control_action(reset, []), - - %% leave system clustered, with the secondary node as a ram node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(force_reset, SecondaryNode, [], []), - ok = control_action(cluster, SecondaryNode, [NodeS], []), - ok = control_action(start_app, SecondaryNode, [], []), - - passed. - -test_user_management() -> - - %% lots if stuff that should fail - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(change_password, ["foo", "baz"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - {error, {no_such_user, _}} = - control_action(set_permissions, ["foo", ".*", ".*", ".*"]), - {error, {no_such_user, _}} = - control_action(clear_permissions, ["foo"]), - {error, {no_such_user, _}} = - control_action(list_user_permissions, ["foo"]), - {error, {no_such_vhost, _}} = - control_action(list_permissions, [], [{"-p", "/testhost"}]), - {error, {invalid_regexp, _, _}} = - control_action(set_permissions, ["guest", "+foo", ".*", ".*"]), - - %% user creation - ok = control_action(add_user, ["foo", "bar"]), - {error, {user_already_exists, _}} = - control_action(add_user, ["foo", "bar"]), - ok = control_action(change_password, ["foo", "baz"]), - ok = control_action(set_admin, ["foo"]), - ok = control_action(clear_admin, ["foo"]), - ok = control_action(list_users, []), - - %% vhost creation - ok = control_action(add_vhost, ["/testhost"]), - {error, {vhost_already_exists, _}} = - control_action(add_vhost, ["/testhost"]), - ok = control_action(list_vhosts, []), - - %% user/vhost mapping - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_user_permissions, ["foo"]), - - %% user/vhost unmapping - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - - %% vhost deletion - ok = control_action(delete_vhost, ["/testhost"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - - %% deleting a populated vhost - ok = control_action(add_vhost, ["/testhost"]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(delete_vhost, ["/testhost"]), - - %% user deletion - ok = control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - - passed. - -test_server_status() -> - %% create a few things so there is some useful information to list - Writer = spawn(fun () -> receive shutdown -> ok end end), - {ok, Ch} = rabbit_channel:start_link( - 1, self(), Writer, rabbit_framing_amqp_0_9_1, user(<<"user">>), - <<"/">>, [], self(), fun (_) -> {ok, self()} end), - [Q, Q2] = [Queue || Name <- [<<"foo">>, <<"bar">>], - {new, Queue = #amqqueue{}} <- - [rabbit_amqqueue:declare( - rabbit_misc:r(<<"/">>, queue, Name), - false, false, [], none)]], - - ok = rabbit_amqqueue:basic_consume(Q, true, Ch, undefined, - <<"ctag">>, true, undefined), - - %% list queues - ok = info_action(list_queues, rabbit_amqqueue:info_keys(), true), - - %% list exchanges - ok = info_action(list_exchanges, rabbit_exchange:info_keys(), true), - - %% list bindings - ok = info_action(list_bindings, rabbit_binding:info_keys(), true), - %% misc binding listing APIs - [_|_] = rabbit_binding:list_for_source( - rabbit_misc:r(<<"/">>, exchange, <<"">>)), - [_] = rabbit_binding:list_for_destination( - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - [_] = rabbit_binding:list_for_source_and_destination( - rabbit_misc:r(<<"/">>, exchange, <<"">>), - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - - %% list connections - [#listener{host = H, port = P} | _] = - [L || L = #listener{node = N} <- rabbit_networking:active_listeners(), - N =:= node()], - - {ok, _C} = gen_tcp:connect(H, P, []), - timer:sleep(100), - ok = info_action(list_connections, - rabbit_networking:connection_info_keys(), false), - %% close_connection - [ConnPid] = rabbit_networking:connections(), - ok = control_action(close_connection, [rabbit_misc:pid_to_string(ConnPid), - "go away"]), - - %% list channels - ok = info_action(list_channels, rabbit_channel:info_keys(), false), - - %% list consumers - ok = control_action(list_consumers, []), - - %% cleanup - [{ok, _} = rabbit_amqqueue:delete(QR, false, false) || QR <- [Q, Q2]], - - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_spawn(Receiver) -> - Me = self(), - Writer = spawn(fun () -> Receiver(Me) end), - {ok, Ch} = rabbit_channel:start_link( - 1, Me, Writer, rabbit_framing_amqp_0_9_1, user(<<"guest">>), - <<"/">>, [], self(), fun (_) -> {ok, self()} end), - ok = rabbit_channel:do(Ch, #'channel.open'{}), - receive #'channel.open_ok'{} -> ok - after 1000 -> throw(failed_to_receive_channel_open_ok) - end, - {Writer, Ch}. - -user(Username) -> - #user{username = Username, - is_admin = true, - auth_backend = rabbit_auth_backend_internal, - impl = #internal_user{username = Username, - is_admin = true}}. - -test_statistics_receiver(Pid) -> - receive - shutdown -> - ok; - {send_command, Method} -> - Pid ! Method, - test_statistics_receiver(Pid) - end. - -test_statistics_event_receiver(Pid) -> - receive - Foo -> - Pid ! Foo, - test_statistics_event_receiver(Pid) - end. - -test_statistics_receive_event(Ch, Matcher) -> - rabbit_channel:flush(Ch), - rabbit_channel:emit_stats(Ch), - test_statistics_receive_event1(Ch, Matcher). - -test_statistics_receive_event1(Ch, Matcher) -> - receive #event{type = channel_stats, props = Props} -> - case Matcher(Props) of - true -> Props; - _ -> test_statistics_receive_event1(Ch, Matcher) - end - after 1000 -> throw(failed_to_receive_event) - end. - -test_confirms_receiver(Pid) -> - receive - shutdown -> - ok; - {send_command, Method} -> - Pid ! Method, - test_confirms_receiver(Pid) - end. - -test_confirms() -> - {_Writer, Ch} = test_spawn(fun test_confirms_receiver/1), - DeclareBindDurableQueue = - fun() -> - rabbit_channel:do(Ch, #'queue.declare'{durable = true}), - receive #'queue.declare_ok'{queue = Q0} -> - rabbit_channel:do(Ch, #'queue.bind'{ - queue = Q0, - exchange = <<"amq.direct">>, - routing_key = "magic" }), - receive #'queue.bind_ok'{} -> - Q0 - after 1000 -> - throw(failed_to_bind_queue) - end - after 1000 -> - throw(failed_to_declare_queue) - end - end, - %% Declare and bind two queues - QName1 = DeclareBindDurableQueue(), - QName2 = DeclareBindDurableQueue(), - %% Get the first one's pid (we'll crash it later) - {ok, Q1} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName1)), - QPid1 = Q1#amqqueue.pid, - %% Enable confirms - rabbit_channel:do(Ch, #'confirm.select'{}), - receive #'confirm.select_ok'{} -> - ok - after 1000 -> - throw(failed_to_enable_confirms) - end, - %% Publish a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"amq.direct">>, - routing_key = "magic" - }, - rabbit_basic:build_content( - #'P_basic'{delivery_mode = 2}, <<"">>)), - %% Crash the queue - QPid1 ! boom, - %% Wait for a nack - receive - #'basic.nack'{} -> - ok; - #'basic.ack'{} -> - throw(received_ack_instead_of_nack) - after 2000 -> - throw(did_not_receive_nack) - end, - receive - #'basic.ack'{} -> - throw(received_ack_when_none_expected) - after 1000 -> - ok - end, - %% Cleanup - rabbit_channel:do(Ch, #'queue.delete'{queue = QName2}), - receive #'queue.delete_ok'{} -> - ok - after 1000 -> - throw(failed_to_cleanup_queue) - end, - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_statistics() -> - application:set_env(rabbit, collect_statistics, fine), - - %% ATM this just tests the queue / exchange stats in channels. That's - %% by far the most complex code though. - - %% Set up a channel and queue - {_Writer, Ch} = test_spawn(fun test_statistics_receiver/1), - rabbit_channel:do(Ch, #'queue.declare'{}), - QName = receive #'queue.declare_ok'{queue = Q0} -> - Q0 - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - {ok, Q} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName)), - QPid = Q#amqqueue.pid, - X = rabbit_misc:r(<<"/">>, exchange, <<"">>), - - rabbit_tests_event_receiver:start(self()), - - %% Check stats empty - Event = test_statistics_receive_event(Ch, fun (_) -> true end), - [] = proplists:get_value(channel_queue_stats, Event), - [] = proplists:get_value(channel_exchange_stats, Event), - [] = proplists:get_value(channel_queue_exchange_stats, Event), - - %% Publish and get a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"">>, - routing_key = QName}, - rabbit_basic:build_content(#'P_basic'{}, <<"">>)), - rabbit_channel:do(Ch, #'basic.get'{queue = QName}), - - %% Check the stats reflect that - Event2 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) > 0 - end), - [{QPid,[{get,1}]}] = proplists:get_value(channel_queue_stats, Event2), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event2), - [{{QPid,X},[{publish,1}]}] = - proplists:get_value(channel_queue_exchange_stats, Event2), - - %% Check the stats remove stuff on queue deletion - rabbit_channel:do(Ch, #'queue.delete'{queue = QName}), - Event3 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) == 0 - end), - - [] = proplists:get_value(channel_queue_stats, Event3), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event3), - [] = proplists:get_value(channel_queue_exchange_stats, Event3), - - rabbit_channel:shutdown(Ch), - rabbit_tests_event_receiver:stop(), - passed. - -test_delegates_async(SecondaryNode) -> - Self = self(), - Sender = fun (Pid) -> Pid ! {invoked, Self} end, - - Responder = make_responder(fun ({invoked, Pid}) -> Pid ! response end), - - ok = delegate:invoke_no_result(spawn(Responder), Sender), - ok = delegate:invoke_no_result(spawn(SecondaryNode, Responder), Sender), - await_response(2), - - LocalPids = spawn_responders(node(), Responder, 10), - RemotePids = spawn_responders(SecondaryNode, Responder, 10), - ok = delegate:invoke_no_result(LocalPids ++ RemotePids, Sender), - await_response(20), - - passed. - -make_responder(FMsg) -> make_responder(FMsg, timeout). -make_responder(FMsg, Throw) -> - fun () -> - receive Msg -> FMsg(Msg) - after 1000 -> throw(Throw) - end - end. - -spawn_responders(Node, Responder, Count) -> - [spawn(Node, Responder) || _ <- lists:seq(1, Count)]. - -await_response(0) -> - ok; -await_response(Count) -> - receive - response -> ok, - await_response(Count - 1) - after 1000 -> - io:format("Async reply not received~n"), - throw(timeout) - end. - -must_exit(Fun) -> - try - Fun(), - throw(exit_not_thrown) - catch - exit:_ -> ok - end. - -test_delegates_sync(SecondaryNode) -> - Sender = fun (Pid) -> gen_server:call(Pid, invoked, infinity) end, - BadSender = fun (_Pid) -> exit(exception) end, - - Responder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end), - - BadResponder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end, bad_responder_died), - - response = delegate:invoke(spawn(Responder), Sender), - response = delegate:invoke(spawn(SecondaryNode, Responder), Sender), - - must_exit(fun () -> delegate:invoke(spawn(BadResponder), BadSender) end), - must_exit(fun () -> - delegate:invoke(spawn(SecondaryNode, BadResponder), BadSender) end), - - LocalGoodPids = spawn_responders(node(), Responder, 2), - RemoteGoodPids = spawn_responders(SecondaryNode, Responder, 2), - LocalBadPids = spawn_responders(node(), BadResponder, 2), - RemoteBadPids = spawn_responders(SecondaryNode, BadResponder, 2), - - {GoodRes, []} = delegate:invoke(LocalGoodPids ++ RemoteGoodPids, Sender), - true = lists:all(fun ({_, response}) -> true end, GoodRes), - GoodResPids = [Pid || {Pid, _} <- GoodRes], - - Good = lists:usort(LocalGoodPids ++ RemoteGoodPids), - Good = lists:usort(GoodResPids), - - {[], BadRes} = delegate:invoke(LocalBadPids ++ RemoteBadPids, BadSender), - true = lists:all(fun ({_, {exit, exception, _}}) -> true end, BadRes), - BadResPids = [Pid || {Pid, _} <- BadRes], - - Bad = lists:usort(LocalBadPids ++ RemoteBadPids), - Bad = lists:usort(BadResPids), - - MagicalPids = [rabbit_misc:string_to_pid(Str) || - Str <- ["", ""]], - {[], BadNodes} = delegate:invoke(MagicalPids, Sender), - true = lists:all( - fun ({_, {exit, {nodedown, nonode@nohost}, _Stack}}) -> true end, - BadNodes), - BadNodesPids = [Pid || {Pid, _} <- BadNodes], - - Magical = lists:usort(MagicalPids), - Magical = lists:usort(BadNodesPids), - - passed. - -test_queue_cleanup_receiver(Pid) -> - receive - shutdown -> - ok; - {send_command, Method} -> - Pid ! Method, - test_queue_cleanup_receiver(Pid) - end. - - -test_queue_cleanup(_SecondaryNode) -> - {_Writer, Ch} = test_spawn(fun test_queue_cleanup_receiver/1), - rabbit_channel:do(Ch, #'queue.declare'{ queue = ?CLEANUP_QUEUE_NAME }), - receive #'queue.declare_ok'{queue = ?CLEANUP_QUEUE_NAME} -> - ok - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - rabbit:stop(), - rabbit:start(), - rabbit_channel:do(Ch, #'queue.declare'{ passive = true, - queue = ?CLEANUP_QUEUE_NAME }), - receive - #'channel.close'{reply_code = ?NOT_FOUND} -> - ok - after 2000 -> - throw(failed_to_receive_channel_exit) - end, - passed. - -test_declare_on_dead_queue(SecondaryNode) -> - QueueName = rabbit_misc:r(<<"/">>, queue, ?CLEANUP_QUEUE_NAME), - Self = self(), - Pid = spawn(SecondaryNode, - fun () -> - {new, #amqqueue{name = QueueName, pid = QPid}} = - rabbit_amqqueue:declare(QueueName, false, false, [], - none), - exit(QPid, kill), - Self ! {self(), killed, QPid} - end), - receive - {Pid, killed, QPid} -> - {existing, #amqqueue{name = QueueName, - pid = QPid}} = - rabbit_amqqueue:declare(QueueName, false, false, [], none), - false = rabbit_misc:is_process_alive(QPid), - {new, Q} = rabbit_amqqueue:declare(QueueName, false, false, [], - none), - true = rabbit_misc:is_process_alive(Q#amqqueue.pid), - {ok, 0} = rabbit_amqqueue:delete(Q, false, false), - passed - after 2000 -> - throw(failed_to_create_and_kill_queue) - end. - -%%--------------------------------------------------------------------- - -control_action(Command, Args) -> - control_action(Command, node(), Args, default_options()). - -control_action(Command, Args, NewOpts) -> - control_action(Command, node(), Args, - expand_options(default_options(), NewOpts)). - -control_action(Command, Node, Args, Opts) -> - case catch rabbit_control:action( - Command, Node, Args, Opts, - fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end) of - ok -> - io:format("done.~n"), - ok; - Other -> - io:format("failed.~n"), - Other - end. - -info_action(Command, Args, CheckVHost) -> - ok = control_action(Command, []), - if CheckVHost -> ok = control_action(Command, []); - true -> ok - end, - ok = control_action(Command, lists:map(fun atom_to_list/1, Args)), - {bad_argument, dummy} = control_action(Command, ["dummy"]), - ok. - -default_options() -> [{"-p", "/"}, {"-q", "false"}]. - -expand_options(As, Bs) -> - lists:foldl(fun({K, _}=A, R) -> - case proplists:is_defined(K, R) of - true -> R; - false -> [A | R] - end - end, Bs, As). - -check_get_options({ExpArgs, ExpOpts}, Defs, Args) -> - {ExpArgs, ResOpts} = rabbit_misc:get_options(Defs, Args), - true = lists:sort(ExpOpts) == lists:sort(ResOpts), % don't care about the order - ok. - -empty_files(Files) -> - [case file:read_file_info(File) of - {ok, FInfo} -> FInfo#file_info.size == 0; - Error -> Error - end || File <- Files]. - -non_empty_files(Files) -> - [case EmptyFile of - {error, Reason} -> {error, Reason}; - _ -> not(EmptyFile) - end || EmptyFile <- empty_files(Files)]. - -test_logs_working(MainLogFile, SaslLogFile) -> - ok = rabbit_log:error("foo bar"), - ok = error_logger:error_report(crash_report, [foo, bar]), - %% give the error loggers some time to catch up - timer:sleep(50), - [true, true] = non_empty_files([MainLogFile, SaslLogFile]), - ok. - -set_permissions(Path, Mode) -> - case file:read_file_info(Path) of - {ok, FInfo} -> file:write_file_info( - Path, - FInfo#file_info{mode=Mode}); - Error -> Error - end. - -clean_logs(Files, Suffix) -> - [begin - ok = delete_file(File), - ok = delete_file([File, Suffix]) - end || File <- Files], - ok. - -delete_file(File) -> - case file:delete(File) of - ok -> ok; - {error, enoent} -> ok; - Error -> Error - end. - -make_files_non_writable(Files) -> - [ok = file:write_file_info(File, #file_info{mode=0}) || - File <- Files], - ok. - -add_log_handlers(Handlers) -> - [ok = error_logger:add_report_handler(Handler, Args) || - {Handler, Args} <- Handlers], - ok. - -delete_log_handlers(Handlers) -> - [[] = error_logger:delete_report_handler(Handler) || - Handler <- Handlers], - ok. - -test_supervisor_delayed_restart() -> - test_sup:test_supervisor_delayed_restart(). - -test_file_handle_cache() -> - %% test copying when there is just one spare handle - Limit = file_handle_cache:get_limit(), - ok = file_handle_cache:set_limit(5), %% 1 or 2 sockets, 2 msg_stores - TmpDir = filename:join(rabbit_mnesia:dir(), "tmp"), - ok = filelib:ensure_dir(filename:join(TmpDir, "nothing")), - Pid = spawn(fun () -> {ok, Hdl} = file_handle_cache:open( - filename:join(TmpDir, "file3"), - [write], []), - receive close -> ok end, - file_handle_cache:delete(Hdl) - end), - Src = filename:join(TmpDir, "file1"), - Dst = filename:join(TmpDir, "file2"), - Content = <<"foo">>, - ok = file:write_file(Src, Content), - {ok, SrcHdl} = file_handle_cache:open(Src, [read], []), - {ok, DstHdl} = file_handle_cache:open(Dst, [write], []), - Size = size(Content), - {ok, Size} = file_handle_cache:copy(SrcHdl, DstHdl, Size), - ok = file_handle_cache:delete(SrcHdl), - file_handle_cache:delete(DstHdl), - Pid ! close, - ok = file_handle_cache:set_limit(Limit), - passed. - -test_backing_queue() -> - case application:get_env(rabbit, backing_queue_module) of - {ok, rabbit_variable_queue} -> - {ok, FileSizeLimit} = - application:get_env(rabbit, msg_store_file_size_limit), - application:set_env(rabbit, msg_store_file_size_limit, 512, - infinity), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - application:set_env(rabbit, queue_index_max_journal_entries, 128, - infinity), - passed = test_msg_store(), - application:set_env(rabbit, msg_store_file_size_limit, - FileSizeLimit, infinity), - passed = test_queue_index(), - passed = test_queue_index_props(), - passed = test_variable_queue(), - passed = test_variable_queue_delete_msg_store_files_callback(), - passed = test_queue_recover(), - application:set_env(rabbit, queue_index_max_journal_entries, - MaxJournal, infinity), - passed; - _ -> - passed - end. - -restart_msg_store_empty() -> - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - undefined, {fun (ok) -> finished end, ok}). - -msg_id_bin(X) -> - erlang:md5(term_to_binary(X)). - -msg_store_client_init(MsgStore, Ref) -> - rabbit_msg_store:client_init(MsgStore, Ref, undefined, undefined). - -msg_store_contains(Atom, MsgIds, MSCState) -> - Atom = lists:foldl( - fun (MsgId, Atom1) when Atom1 =:= Atom -> - rabbit_msg_store:contains(MsgId, MSCState) end, - Atom, MsgIds). - -msg_store_sync(MsgIds, MSCState) -> - Ref = make_ref(), - Self = self(), - ok = rabbit_msg_store:sync(MsgIds, fun () -> Self ! {sync, Ref} end, - MSCState), - receive - {sync, Ref} -> ok - after - 10000 -> - io:format("Sync from msg_store missing for msg_ids ~p~n", [MsgIds]), - throw(timeout) - end. - -msg_store_read(MsgIds, MSCState) -> - lists:foldl(fun (MsgId, MSCStateM) -> - {{ok, MsgId}, MSCStateN} = rabbit_msg_store:read( - MsgId, MSCStateM), - MSCStateN - end, MSCState, MsgIds). - -msg_store_write(MsgIds, MSCState) -> - ok = lists:foldl(fun (MsgId, ok) -> - rabbit_msg_store:write(MsgId, MsgId, MSCState) - end, ok, MsgIds). - -msg_store_remove(MsgIds, MSCState) -> - rabbit_msg_store:remove(MsgIds, MSCState). - -msg_store_remove(MsgStore, Ref, MsgIds) -> - with_msg_store_client(MsgStore, Ref, - fun (MSCStateM) -> - ok = msg_store_remove(MsgIds, MSCStateM), - MSCStateM - end). - -with_msg_store_client(MsgStore, Ref, Fun) -> - rabbit_msg_store:client_terminate( - Fun(msg_store_client_init(MsgStore, Ref))). - -foreach_with_msg_store_client(MsgStore, Ref, Fun, L) -> - rabbit_msg_store:client_terminate( - lists:foldl(fun (MsgId, MSCState) -> Fun(MsgId, MSCState) end, - msg_store_client_init(MsgStore, Ref), L)). - -test_msg_store() -> - restart_msg_store_empty(), - Self = self(), - MsgIds = [msg_id_bin(M) || M <- lists:seq(1,100)], - {MsgIds1stHalf, MsgIds2ndHalf} = lists:split(50, MsgIds), - Ref = rabbit_guid:guid(), - MSCState = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs we're about to publish - false = msg_store_contains(false, MsgIds, MSCState), - %% publish the first half - ok = msg_store_write(MsgIds1stHalf, MSCState), - %% sync on the first half - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% publish the second half - ok = msg_store_write(MsgIds2ndHalf, MSCState), - %% sync on the first half again - the msg_store will be dirty, but - %% we won't need the fsync - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% check they're all in there - true = msg_store_contains(true, MsgIds, MSCState), - %% publish the latter half twice so we hit the caching and ref count code - ok = msg_store_write(MsgIds2ndHalf, MSCState), - %% check they're still all in there - true = msg_store_contains(true, MsgIds, MSCState), - %% sync on the 2nd half, but do lots of individual syncs to try - %% and cause coalescing to happen - ok = lists:foldl( - fun (MsgId, ok) -> rabbit_msg_store:sync( - [MsgId], fun () -> Self ! {sync, MsgId} end, - MSCState) - end, ok, MsgIds2ndHalf), - lists:foldl( - fun(MsgId, ok) -> - receive - {sync, MsgId} -> ok - after - 10000 -> - io:format("Sync from msg_store missing (msg_id: ~p)~n", - [MsgId]), - throw(timeout) - end - end, ok, MsgIds2ndHalf), - %% it's very likely we're not dirty here, so the 1st half sync - %% should hit a different code path - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% read them all - MSCState1 = msg_store_read(MsgIds, MSCState), - %% read them all again - this will hit the cache, not disk - MSCState2 = msg_store_read(MsgIds, MSCState1), - %% remove them all - ok = rabbit_msg_store:remove(MsgIds, MSCState2), - %% check first half doesn't exist - false = msg_store_contains(false, MsgIds1stHalf, MSCState2), - %% check second half does exist - true = msg_store_contains(true, MsgIds2ndHalf, MSCState2), - %% read the second half again - MSCState3 = msg_store_read(MsgIds2ndHalf, MSCState2), - %% release the second half, just for fun (aka code coverage) - ok = rabbit_msg_store:release(MsgIds2ndHalf, MSCState3), - %% read the second half again, just for fun (aka code coverage) - MSCState4 = msg_store_read(MsgIds2ndHalf, MSCState3), - ok = rabbit_msg_store:client_terminate(MSCState4), - %% stop and restart, preserving every other msg in 2nd half - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - [], {fun ([]) -> finished; - ([MsgId|MsgIdsTail]) - when length(MsgIdsTail) rem 2 == 0 -> - {MsgId, 1, MsgIdsTail}; - ([MsgId|MsgIdsTail]) -> - {MsgId, 0, MsgIdsTail} - end, MsgIds2ndHalf}), - MSCState5 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we have the right msgs left - lists:foldl( - fun (MsgId, Bool) -> - not(Bool = rabbit_msg_store:contains(MsgId, MSCState5)) - end, false, MsgIds2ndHalf), - ok = rabbit_msg_store:client_terminate(MSCState5), - %% restart empty - restart_msg_store_empty(), - MSCState6 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs - false = msg_store_contains(false, MsgIds, MSCState6), - %% publish the first half again - ok = msg_store_write(MsgIds1stHalf, MSCState6), - %% this should force some sort of sync internally otherwise misread - ok = rabbit_msg_store:client_terminate( - msg_store_read(MsgIds1stHalf, MSCState6)), - MSCState7 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - ok = rabbit_msg_store:remove(MsgIds1stHalf, MSCState7), - ok = rabbit_msg_store:client_terminate(MSCState7), - %% restart empty - restart_msg_store_empty(), %% now safe to reuse msg_ids - %% push a lot of msgs in... at least 100 files worth - {ok, FileSize} = application:get_env(rabbit, msg_store_file_size_limit), - PayloadSizeBits = 65536, - BigCount = trunc(100 * FileSize / (PayloadSizeBits div 8)), - MsgIdsBig = [msg_id_bin(X) || X <- lists:seq(1, BigCount)], - Payload = << 0:PayloadSizeBits >>, - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - [ok = rabbit_msg_store:write(MsgId, Payload, MSCStateM) || - MsgId <- MsgIdsBig], - MSCStateM - end), - %% now read them to ensure we hit the fast client-side reading - ok = foreach_with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MsgId, MSCStateM) -> - {{ok, Payload}, MSCStateN} = rabbit_msg_store:read( - MsgId, MSCStateM), - MSCStateN - end, MsgIdsBig), - %% .., then 3s by 1... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount, 1, -3)]), - %% .., then remove 3s by 2, from the young end first. This hits - %% GC (under 50% good data left, but no empty files. Must GC). - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount-1, 1, -3)]), - %% .., then remove 3s by 3, from the young end first. This hits - %% GC... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount-2, 1, -3)]), - %% ensure empty - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - false = msg_store_contains(false, MsgIdsBig, MSCStateM), - MSCStateM - end), - %% restart empty - restart_msg_store_empty(), - passed. - -queue_name(Name) -> - rabbit_misc:r(<<"/">>, queue, Name). - -test_queue() -> - queue_name(<<"test">>). - -init_test_queue() -> - TestQueue = test_queue(), - Terms = rabbit_queue_index:shutdown_terms(TestQueue), - PRef = proplists:get_value(persistent_ref, Terms, rabbit_guid:guid()), - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef), - Res = rabbit_queue_index:recover( - TestQueue, Terms, false, - fun (MsgId) -> - rabbit_msg_store:contains(MsgId, PersistentClient) - end, - fun nop/1), - ok = rabbit_msg_store:client_delete_and_terminate(PersistentClient), - Res. - -restart_test_queue(Qi) -> - _ = rabbit_queue_index:terminate([], Qi), - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([test_queue()]), - init_test_queue(). - -empty_test_queue() -> - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - {0, Qi} = init_test_queue(), - _ = rabbit_queue_index:delete_and_terminate(Qi), - ok. - -with_empty_test_queue(Fun) -> - ok = empty_test_queue(), - {0, Qi} = init_test_queue(), - rabbit_queue_index:delete_and_terminate(Fun(Qi)). - -queue_index_publish(SeqIds, Persistent, Qi) -> - Ref = rabbit_guid:guid(), - MsgStore = case Persistent of - true -> ?PERSISTENT_MSG_STORE; - false -> ?TRANSIENT_MSG_STORE - end, - MSCState = msg_store_client_init(MsgStore, Ref), - {A, B = [{_SeqId, LastMsgIdWritten} | _]} = - lists:foldl( - fun (SeqId, {QiN, SeqIdsMsgIdsAcc}) -> - MsgId = rabbit_guid:guid(), - QiM = rabbit_queue_index:publish( - MsgId, SeqId, #message_properties{}, Persistent, QiN), - ok = rabbit_msg_store:write(MsgId, MsgId, MSCState), - {QiM, [{SeqId, MsgId} | SeqIdsMsgIdsAcc]} - end, {Qi, []}, SeqIds), - %% do this just to force all of the publishes through to the msg_store: - true = rabbit_msg_store:contains(LastMsgIdWritten, MSCState), - ok = rabbit_msg_store:client_delete_and_terminate(MSCState), - {A, B}. - -verify_read_with_published(_Delivered, _Persistent, [], _) -> - ok; -verify_read_with_published(Delivered, Persistent, - [{MsgId, SeqId, _Props, Persistent, Delivered}|Read], - [{SeqId, MsgId}|Published]) -> - verify_read_with_published(Delivered, Persistent, Read, Published); -verify_read_with_published(_Delivered, _Persistent, _Read, _Published) -> - ko. - -test_queue_index_props() -> - with_empty_test_queue( - fun(Qi0) -> - MsgId = rabbit_guid:guid(), - Props = #message_properties{expiry=12345}, - Qi1 = rabbit_queue_index:publish(MsgId, 1, Props, true, Qi0), - {[{MsgId, 1, Props, _, _}], Qi2} = - rabbit_queue_index:read(1, 2, Qi1), - Qi2 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -test_queue_index() -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - TwoSegs = SegmentSize + SegmentSize, - MostOfASegment = trunc(SegmentSize*0.75), - SeqIdsA = lists:seq(0, MostOfASegment-1), - SeqIdsB = lists:seq(MostOfASegment, 2*MostOfASegment), - SeqIdsC = lists:seq(0, trunc(SegmentSize/2)), - SeqIdsD = lists:seq(0, SegmentSize*4), - - with_empty_test_queue( - fun (Qi0) -> - {0, 0, Qi1} = rabbit_queue_index:bounds(Qi0), - {Qi2, SeqIdsMsgIdsA} = queue_index_publish(SeqIdsA, false, Qi1), - {0, SegmentSize, Qi3} = rabbit_queue_index:bounds(Qi2), - {ReadA, Qi4} = rabbit_queue_index:read(0, SegmentSize, Qi3), - ok = verify_read_with_published(false, false, ReadA, - lists:reverse(SeqIdsMsgIdsA)), - %% should get length back as 0, as all the msgs were transient - {0, Qi6} = restart_test_queue(Qi4), - {0, 0, Qi7} = rabbit_queue_index:bounds(Qi6), - {Qi8, SeqIdsMsgIdsB} = queue_index_publish(SeqIdsB, true, Qi7), - {0, TwoSegs, Qi9} = rabbit_queue_index:bounds(Qi8), - {ReadB, Qi10} = rabbit_queue_index:read(0, SegmentSize, Qi9), - ok = verify_read_with_published(false, true, ReadB, - lists:reverse(SeqIdsMsgIdsB)), - %% should get length back as MostOfASegment - LenB = length(SeqIdsB), - {LenB, Qi12} = restart_test_queue(Qi10), - {0, TwoSegs, Qi13} = rabbit_queue_index:bounds(Qi12), - Qi14 = rabbit_queue_index:deliver(SeqIdsB, Qi13), - {ReadC, Qi15} = rabbit_queue_index:read(0, SegmentSize, Qi14), - ok = verify_read_with_published(true, true, ReadC, - lists:reverse(SeqIdsMsgIdsB)), - Qi16 = rabbit_queue_index:ack(SeqIdsB, Qi15), - Qi17 = rabbit_queue_index:flush(Qi16), - %% Everything will have gone now because #pubs == #acks - {0, 0, Qi18} = rabbit_queue_index:bounds(Qi17), - %% should get length back as 0 because all persistent - %% msgs have been acked - {0, Qi19} = restart_test_queue(Qi18), - Qi19 - end), - - %% These next bits are just to hit the auto deletion of segment files. - %% First, partials: - %% a) partial pub+del+ack, then move to new segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsC} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsC, Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, _SeqIdsMsgIdsC1} = queue_index_publish([SegmentSize], - false, Qi4), - Qi5 - end), - - %% b) partial pub+del, then move to new segment, then ack all in old segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsC2} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - {Qi3, _SeqIdsMsgIdsC3} = queue_index_publish([SegmentSize], - false, Qi2), - Qi4 = rabbit_queue_index:ack(SeqIdsC, Qi3), - rabbit_queue_index:flush(Qi4) - end), - - %% c) just fill up several segments of all pubs, then +dels, then +acks - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsD} = queue_index_publish(SeqIdsD, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsD, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsD, Qi2), - rabbit_queue_index:flush(Qi3) - end), - - %% d) get messages in all states to a segment, then flush, then do - %% the same again, don't flush and read. This will hit all - %% possibilities in combining the segment with the journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, [Seven,Five,Four|_]} = queue_index_publish([0,1,2,4,5,7], - false, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, [Eight,Six|_]} = queue_index_publish([3,6,8], false, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {[], Qi8} = rabbit_queue_index:read(0, 4, Qi7), - {ReadD, Qi9} = rabbit_queue_index:read(4, 7, Qi8), - ok = verify_read_with_published(true, false, ReadD, - [Four, Five, Six]), - {ReadE, Qi10} = rabbit_queue_index:read(7, 9, Qi9), - ok = verify_read_with_published(false, false, ReadE, - [Seven, Eight]), - Qi10 - end), - - %% e) as for (d), but use terminate instead of read, which will - %% exercise journal_minus_segment, not segment_plus_journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsE} = queue_index_publish([0,1,2,4,5,7], - true, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - {5, Qi4} = restart_test_queue(Qi3), - {Qi5, _SeqIdsMsgIdsF} = queue_index_publish([3,6,8], true, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {5, Qi8} = restart_test_queue(Qi7), - Qi8 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -variable_queue_init(QName, IsDurable, Recover) -> - rabbit_variable_queue:init(QName, IsDurable, Recover, - fun nop/1, fun nop/1, fun nop/2, fun nop/1). - -variable_queue_publish(IsPersistent, Count, VQ) -> - lists:foldl( - fun (_N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = case IsPersistent of - true -> 2; - false -> 1 - end}, <<>>), - #message_properties{}, VQN) - end, VQ, lists:seq(1, Count)). - -variable_queue_fetch(Count, IsPersistent, IsDelivered, Len, VQ) -> - lists:foldl(fun (N, {VQN, AckTagsAcc}) -> - Rem = Len - N, - {{#basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTagN, Rem}, VQM} = - rabbit_variable_queue:fetch(true, VQN), - {VQM, [AckTagN | AckTagsAcc]} - end, {VQ, []}, lists:seq(1, Count)). - -assert_prop(List, Prop, Value) -> - Value = proplists:get_value(Prop, List). - -assert_props(List, PropVals) -> - [assert_prop(List, Prop, Value) || {Prop, Value} <- PropVals]. - -with_fresh_variable_queue(Fun) -> - ok = empty_test_queue(), - VQ = variable_queue_init(test_queue(), true, false), - S0 = rabbit_variable_queue:status(VQ), - assert_props(S0, [{q1, 0}, {q2, 0}, - {delta, {delta, undefined, 0, undefined}}, - {q3, 0}, {q4, 0}, - {len, 0}]), - _ = rabbit_variable_queue:delete_and_terminate(Fun(VQ)), - passed. - -test_variable_queue() -> - [passed = with_fresh_variable_queue(F) || - F <- [fun test_variable_queue_dynamic_duration_change/1, - fun test_variable_queue_partial_segments_delta_thing/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere1/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere2/1, - fun test_dropwhile/1, - fun test_variable_queue_ack_limiting/1]], - passed. - -test_variable_queue_ack_limiting(VQ0) -> - %% start by sending in a bunch of messages - Len = 1024, - VQ1 = variable_queue_publish(false, Len, VQ0), - - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - %% update stats for duration - {_Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - - %% fetch half the messages - {VQ4, _AckTags} = variable_queue_fetch(Len div 2, false, false, Len, VQ3), - - VQ5 = check_variable_queue_status(VQ4, [{len , Len div 2}, - {ram_ack_count, Len div 2}, - {ram_msg_count, Len div 2}]), - - %% ensure all acks go to disk on 0 duration target - VQ6 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ5), - [{len, Len div 2}, - {target_ram_count, 0}, - {ram_msg_count, 0}, - {ram_ack_count, 0}]), - - VQ6. - -test_dropwhile(VQ0) -> - Count = 10, - - %% add messages with sequential expiry - VQ1 = lists:foldl( - fun (N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{}, <<>>), - #message_properties{expiry = N}, VQN) - end, VQ0, lists:seq(1, Count)), - - %% drop the first 5 messages - VQ2 = rabbit_variable_queue:dropwhile( - fun(#message_properties { expiry = Expiry }) -> - Expiry =< 5 - end, VQ1), - - %% fetch five now - VQ3 = lists:foldl(fun (_N, VQN) -> - {{#basic_message{}, _, _, _}, VQM} = - rabbit_variable_queue:fetch(false, VQN), - VQM - end, VQ2, lists:seq(6, Count)), - - %% should be empty now - {empty, VQ4} = rabbit_variable_queue:fetch(false, VQ3), - - VQ4. - -test_variable_queue_dynamic_duration_change(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - - %% start by sending in a couple of segments worth - Len = 2*SegmentSize, - VQ1 = variable_queue_publish(false, Len, VQ0), - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - {Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - VQ7 = lists:foldl( - fun (Duration1, VQ4) -> - {_Duration, VQ5} = rabbit_variable_queue:ram_duration(VQ4), - io:format("~p:~n~p~n", - [Duration1, rabbit_variable_queue:status(VQ5)]), - VQ6 = rabbit_variable_queue:set_ram_duration_target( - Duration1, VQ5), - publish_fetch_and_ack(Churn, Len, VQ6) - end, VQ3, [Duration / 4, 0, Duration / 4, infinity]), - - %% drain - {VQ8, AckTags} = variable_queue_fetch(Len, false, false, Len, VQ7), - VQ9 = rabbit_variable_queue:ack(AckTags, VQ8), - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - - VQ10. - -publish_fetch_and_ack(0, _Len, VQ0) -> - VQ0; -publish_fetch_and_ack(N, Len, VQ0) -> - VQ1 = variable_queue_publish(false, 1, VQ0), - {{_Msg, false, AckTag, Len}, VQ2} = rabbit_variable_queue:fetch(true, VQ1), - VQ3 = rabbit_variable_queue:ack([AckTag], VQ2), - publish_fetch_and_ack(N-1, Len, VQ3). - -test_variable_queue_partial_segments_delta_thing(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - HalfSegment = SegmentSize div 2, - OneAndAHalfSegment = SegmentSize + HalfSegment, - VQ1 = variable_queue_publish(true, OneAndAHalfSegment, VQ0), - {_Duration, VQ2} = rabbit_variable_queue:ram_duration(VQ1), - VQ3 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ2), - %% one segment in q3 as betas, and half a segment in delta - [{delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment}]), - VQ4 = rabbit_variable_queue:set_ram_duration_target(infinity, VQ3), - VQ5 = check_variable_queue_status( - variable_queue_publish(true, 1, VQ4), - %% one alpha, but it's in the same segment as the deltas - [{q1, 1}, - {delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment + 1}]), - {VQ6, AckTags} = variable_queue_fetch(SegmentSize, true, false, - SegmentSize + HalfSegment + 1, VQ5), - VQ7 = check_variable_queue_status( - VQ6, - %% the half segment should now be in q3 as betas - [{q1, 1}, - {delta, {delta, undefined, 0, undefined}}, - {q3, HalfSegment}, - {len, HalfSegment + 1}]), - {VQ8, AckTags1} = variable_queue_fetch(HalfSegment + 1, true, false, - HalfSegment + 1, VQ7), - VQ9 = rabbit_variable_queue:ack(AckTags ++ AckTags1, VQ8), - %% should be empty now - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - VQ10. - -check_variable_queue_status(VQ0, Props) -> - VQ1 = variable_queue_wait_for_shuffling_end(VQ0), - S = rabbit_variable_queue:status(VQ1), - io:format("~p~n", [S]), - assert_props(S, Props), - VQ1. - -variable_queue_wait_for_shuffling_end(VQ) -> - case rabbit_variable_queue:needs_idle_timeout(VQ) of - true -> variable_queue_wait_for_shuffling_end( - rabbit_variable_queue:idle_timeout(VQ)); - false -> VQ - end. - -test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - VQ1 = variable_queue_publish(true, Count, VQ0), - VQ2 = variable_queue_publish(false, Count, VQ1), - VQ3 = rabbit_variable_queue:set_ram_duration_target(0, VQ2), - {VQ4, _AckTags} = variable_queue_fetch(Count, true, false, - Count + Count, VQ3), - {VQ5, _AckTags1} = variable_queue_fetch(Count, false, false, - Count, VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = variable_queue_init(test_queue(), true, true), - {{_Msg1, true, _AckTag1, Count1}, VQ8} = - rabbit_variable_queue:fetch(true, VQ7), - VQ9 = variable_queue_publish(false, 1, VQ8), - VQ10 = rabbit_variable_queue:set_ram_duration_target(0, VQ9), - {VQ11, _AckTags2} = variable_queue_fetch(Count1, true, true, Count, VQ10), - {VQ12, _AckTags3} = variable_queue_fetch(1, false, false, 1, VQ11), - VQ12. - -test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ0) -> - VQ1 = rabbit_variable_queue:set_ram_duration_target(0, VQ0), - VQ2 = variable_queue_publish(false, 4, VQ1), - {VQ3, AckTags} = variable_queue_fetch(2, false, false, 4, VQ2), - VQ4 = rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, VQ3), - VQ5 = rabbit_variable_queue:idle_timeout(VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = variable_queue_init(test_queue(), true, true), - {empty, VQ8} = rabbit_variable_queue:fetch(false, VQ7), - VQ8. - -test_queue_recover() -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - TxID = rabbit_guid:guid(), - {new, #amqqueue { pid = QPid, name = QName }} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - [begin - Msg = rabbit_basic:message(rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, <<>>), - Delivery = #delivery{mandatory = false, immediate = false, txn = TxID, - sender = self(), message = Msg}, - true = rabbit_amqqueue:deliver(QPid, Delivery) - end || _ <- lists:seq(1, Count)], - rabbit_amqqueue:commit_all([QPid], TxID, self()), - exit(QPid, kill), - MRef = erlang:monitor(process, QPid), - receive {'DOWN', MRef, process, QPid, _Info} -> ok - after 10000 -> exit(timeout_waiting_for_queue_death) - end, - rabbit_amqqueue:stop(), - ok = rabbit_amqqueue:start(), - rabbit_amqqueue:with_or_die( - QName, - fun (Q1 = #amqqueue { pid = QPid1 }) -> - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid1, _AckTag, true, _Msg}} = - rabbit_amqqueue:basic_get(Q1, self(), false), - exit(QPid1, shutdown), - VQ1 = variable_queue_init(QName, true, true), - {{_Msg1, true, _AckTag1, CountMinusOne}, VQ2} = - rabbit_variable_queue:fetch(true, VQ1), - _VQ3 = rabbit_variable_queue:delete_and_terminate(VQ2), - rabbit_amqqueue:internal_delete(QName) - end), - passed. - -test_variable_queue_delete_msg_store_files_callback() -> - ok = restart_msg_store_empty(), - {new, #amqqueue { pid = QPid, name = QName } = Q} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - TxID = rabbit_guid:guid(), - Payload = <<0:8388608>>, %% 1MB - Count = 30, - [begin - Msg = rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, Payload), - Delivery = #delivery{mandatory = false, immediate = false, txn = TxID, - sender = self(), message = Msg}, - true = rabbit_amqqueue:deliver(QPid, Delivery) - end || _ <- lists:seq(1, Count)], - rabbit_amqqueue:commit_all([QPid], TxID, self()), - rabbit_amqqueue:set_ram_duration_target(QPid, 0), - - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid, _AckTag, false, _Msg}} = - rabbit_amqqueue:basic_get(Q, self(), true), - {ok, CountMinusOne} = rabbit_amqqueue:purge(Q), - - %% give the queue a second to receive the close_fds callback msg - timer:sleep(1000), - - rabbit_amqqueue:delete(Q, false, false), - passed. - -test_configurable_server_properties() -> - %% List of the names of the built-in properties do we expect to find - BuiltInPropNames = [<<"product">>, <<"version">>, <<"platform">>, - <<"copyright">>, <<"information">>], - - Protocol = rabbit_framing_amqp_0_9_1, - - %% Verify that the built-in properties are initially present - ActualPropNames = [Key || {Key, longstr, _} <- - rabbit_reader:server_properties(Protocol)], - true = lists:all(fun (X) -> lists:member(X, ActualPropNames) end, - BuiltInPropNames), - - %% Get the initial server properties configured in the environment - {ok, ServerProperties} = application:get_env(rabbit, server_properties), - - %% Helper functions - ConsProp = fun (X) -> application:set_env(rabbit, - server_properties, - [X | ServerProperties]) end, - IsPropPresent = - fun (X) -> - lists:member(X, rabbit_reader:server_properties(Protocol)) - end, - - %% Add a wholly new property of the simplified {KeyAtom, StringValue} form - NewSimplifiedProperty = {NewHareKey, NewHareVal} = {hare, "soup"}, - ConsProp(NewSimplifiedProperty), - %% Do we find hare soup, appropriately formatted in the generated properties? - ExpectedHareImage = {list_to_binary(atom_to_list(NewHareKey)), - longstr, - list_to_binary(NewHareVal)}, - true = IsPropPresent(ExpectedHareImage), - - %% Add a wholly new property of the {BinaryKey, Type, Value} form - %% and check for it - NewProperty = {<<"new-bin-key">>, signedint, -1}, - ConsProp(NewProperty), - %% Do we find the new property? - true = IsPropPresent(NewProperty), - - %% Add a property that clobbers a built-in, and verify correct clobbering - {NewVerKey, NewVerVal} = NewVersion = {version, "X.Y.Z."}, - {BinNewVerKey, BinNewVerVal} = {list_to_binary(atom_to_list(NewVerKey)), - list_to_binary(NewVerVal)}, - ConsProp(NewVersion), - ClobberedServerProps = rabbit_reader:server_properties(Protocol), - %% Is the clobbering insert present? - true = IsPropPresent({BinNewVerKey, longstr, BinNewVerVal}), - %% Is the clobbering insert the only thing with the clobbering key? - [{BinNewVerKey, longstr, BinNewVerVal}] = - [E || {K, longstr, _V} = E <- ClobberedServerProps, K =:= BinNewVerKey], - - application:set_env(rabbit, server_properties, ServerProperties), - passed. - -nop(_) -> ok. -nop(_, _) -> ok. diff --git a/src/rabbit_tests_event_receiver.erl b/src/rabbit_tests_event_receiver.erl deleted file mode 100644 index 12c43faf..00000000 --- a/src/rabbit_tests_event_receiver.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests_event_receiver). - --export([start/1, stop/0]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - -start(Pid) -> - gen_event:add_handler(rabbit_event, ?MODULE, [Pid]). - -stop() -> - gen_event:delete_handler(rabbit_event, ?MODULE, []). - -%%---------------------------------------------------------------------------- - -init([Pid]) -> - {ok, Pid}. - -handle_call(_Request, Pid) -> - {ok, not_understood, Pid}. - -handle_event(Event, Pid) -> - Pid ! Event, - {ok, Pid}. - -handle_info(_Info, Pid) -> - {ok, Pid}. - -terminate(_Arg, _Pid) -> - ok. - -code_change(_OldVsn, Pid, _Extra) -> - {ok, Pid}. - -%%---------------------------------------------------------------------------- diff --git a/src/rabbit_types.erl b/src/rabbit_types.erl deleted file mode 100644 index 1f0f8bbe..00000000 --- a/src/rabbit_types.erl +++ /dev/null @@ -1,161 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_types). - --include("rabbit.hrl"). - --ifdef(use_specs). - --export_type([txn/0, maybe/1, info/0, infos/0, info_key/0, info_keys/0, - message/0, msg_id/0, basic_message/0, - delivery/0, content/0, decoded_content/0, undecoded_content/0, - unencoded_content/0, encoded_content/0, message_properties/0, - vhost/0, ctag/0, amqp_error/0, r/1, r2/2, r3/3, listener/0, - binding/0, binding_source/0, binding_destination/0, - amqqueue/0, exchange/0, - connection/0, protocol/0, user/0, internal_user/0, - username/0, password/0, password_hash/0, ok/1, error/1, - ok_or_error/1, ok_or_error2/2, ok_pid_or_error/0, channel_exit/0, - connection_exit/0]). - --type(channel_exit() :: no_return()). --type(connection_exit() :: no_return()). - --type(maybe(T) :: T | 'none'). --type(vhost() :: binary()). --type(ctag() :: binary()). - -%% TODO: make this more precise by tying specific class_ids to -%% specific properties --type(undecoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: 'none', - properties_bin :: binary(), - payload_fragments_rev :: [binary()]} | - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: 'none', - payload_fragments_rev :: [binary()]}). --type(unencoded_content() :: undecoded_content()). --type(decoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: maybe(binary()), - payload_fragments_rev :: [binary()]}). --type(encoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: maybe(rabbit_framing:amqp_property_record()), - properties_bin :: binary(), - payload_fragments_rev :: [binary()]}). --type(content() :: undecoded_content() | decoded_content()). --type(msg_id() :: rabbit_guid:guid()). --type(basic_message() :: - #basic_message{exchange_name :: rabbit_exchange:name(), - routing_keys :: [rabbit_router:routing_key()], - content :: content(), - id :: msg_id(), - is_persistent :: boolean()}). --type(message() :: basic_message()). --type(delivery() :: - #delivery{mandatory :: boolean(), - immediate :: boolean(), - txn :: maybe(txn()), - sender :: pid(), - message :: message()}). --type(message_properties() :: - #message_properties{expiry :: pos_integer() | 'undefined', - needs_confirming :: boolean()}). - -%% this is really an abstract type, but dialyzer does not support them --type(txn() :: rabbit_guid:guid()). - --type(info_key() :: atom()). --type(info_keys() :: [info_key()]). - --type(info() :: {info_key(), any()}). --type(infos() :: [info()]). - --type(amqp_error() :: - #amqp_error{name :: rabbit_framing:amqp_exception(), - explanation :: string(), - method :: rabbit_framing:amqp_method_name()}). - --type(r(Kind) :: - r2(vhost(), Kind)). --type(r2(VirtualHost, Kind) :: - r3(VirtualHost, Kind, rabbit_misc:resource_name())). --type(r3(VirtualHost, Kind, Name) :: - #resource{virtual_host :: VirtualHost, - kind :: Kind, - name :: Name}). - --type(listener() :: - #listener{node :: node(), - protocol :: atom(), - host :: rabbit_networking:hostname(), - port :: rabbit_networking:ip_port()}). - --type(binding_source() :: rabbit_exchange:name()). --type(binding_destination() :: rabbit_amqqueue:name() | rabbit_exchange:name()). - --type(binding() :: - #binding{source :: rabbit_exchange:name(), - destination :: binding_destination(), - key :: rabbit_binding:key(), - args :: rabbit_framing:amqp_table()}). - --type(amqqueue() :: - #amqqueue{name :: rabbit_amqqueue:name(), - durable :: boolean(), - auto_delete :: boolean(), - exclusive_owner :: rabbit_types:maybe(pid()), - arguments :: rabbit_framing:amqp_table(), - pid :: rabbit_types:maybe(pid())}). - --type(exchange() :: - #exchange{name :: rabbit_exchange:name(), - type :: rabbit_exchange:type(), - durable :: boolean(), - auto_delete :: boolean(), - arguments :: rabbit_framing:amqp_table()}). - --type(connection() :: pid()). - --type(protocol() :: rabbit_framing:protocol()). - --type(user() :: - #user{username :: username(), - is_admin :: boolean(), - auth_backend :: atom(), - impl :: any()}). - --type(internal_user() :: - #internal_user{username :: username(), - password_hash :: password_hash(), - is_admin :: boolean()}). - --type(username() :: binary()). --type(password() :: binary()). --type(password_hash() :: binary()). - --type(ok(A) :: {'ok', A}). --type(error(A) :: {'error', A}). --type(ok_or_error(A) :: 'ok' | error(A)). --type(ok_or_error2(A, B) :: ok(A) | error(B)). --type(ok_pid_or_error() :: ok_or_error2(pid(), any())). - --endif. % use_specs diff --git a/src/rabbit_upgrade.erl b/src/rabbit_upgrade.erl deleted file mode 100644 index ebda5d03..00000000 --- a/src/rabbit_upgrade.erl +++ /dev/null @@ -1,168 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade). - --export([maybe_upgrade/0, read_version/0, write_version/0, desired_version/0]). - --include("rabbit.hrl"). - --define(VERSION_FILENAME, "schema_version"). --define(LOCK_FILENAME, "schema_upgrade_lock"). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --type(step() :: atom()). --type(version() :: [step()]). - --spec(maybe_upgrade/0 :: () -> 'ok' | 'version_not_available'). --spec(read_version/0 :: () -> rabbit_types:ok_or_error2(version(), any())). --spec(write_version/0 :: () -> 'ok'). --spec(desired_version/0 :: () -> version()). - --endif. - -%% ------------------------------------------------------------------- - -%% Try to upgrade the schema. If no information on the existing schema -%% could be found, do nothing. rabbit_mnesia:check_schema_integrity() -%% will catch the problem. -maybe_upgrade() -> - case read_version() of - {ok, CurrentHeads} -> - with_upgrade_graph( - fun (G) -> - case unknown_heads(CurrentHeads, G) of - [] -> case upgrades_to_apply(CurrentHeads, G) of - [] -> ok; - Upgrades -> apply_upgrades(Upgrades) - end; - Unknown -> throw({error, - {future_upgrades_found, Unknown}}) - end - end); - {error, enoent} -> - version_not_available - end. - -read_version() -> - case rabbit_misc:read_term_file(schema_filename()) of - {ok, [Heads]} -> {ok, Heads}; - {error, _} = Err -> Err - end. - -write_version() -> - ok = rabbit_misc:write_term_file(schema_filename(), [desired_version()]), - ok. - -desired_version() -> - with_upgrade_graph(fun (G) -> heads(G) end). - -%% ------------------------------------------------------------------- - -with_upgrade_graph(Fun) -> - case rabbit_misc:build_acyclic_graph( - fun vertices/2, fun edges/2, - rabbit_misc:all_module_attributes(rabbit_upgrade)) of - {ok, G} -> try - Fun(G) - after - true = digraph:delete(G) - end; - {error, {vertex, duplicate, StepName}} -> - throw({error, {duplicate_upgrade_step, StepName}}); - {error, {edge, {bad_vertex, StepName}, _From, _To}} -> - throw({error, {dependency_on_unknown_upgrade_step, StepName}}); - {error, {edge, {bad_edge, StepNames}, _From, _To}} -> - throw({error, {cycle_in_upgrade_steps, StepNames}}) - end. - -vertices(Module, Steps) -> - [{StepName, {Module, StepName}} || {StepName, _Reqs} <- Steps]. - -edges(_Module, Steps) -> - [{Require, StepName} || {StepName, Requires} <- Steps, Require <- Requires]. - -unknown_heads(Heads, G) -> - [H || H <- Heads, digraph:vertex(G, H) =:= false]. - -upgrades_to_apply(Heads, G) -> - %% Take all the vertices which can reach the known heads. That's - %% everything we've already applied. Subtract that from all - %% vertices: that's what we have to apply. - Unsorted = sets:to_list( - sets:subtract( - sets:from_list(digraph:vertices(G)), - sets:from_list(digraph_utils:reaching(Heads, G)))), - %% Form a subgraph from that list and find a topological ordering - %% so we can invoke them in order. - [element(2, digraph:vertex(G, StepName)) || - StepName <- digraph_utils:topsort(digraph_utils:subgraph(G, Unsorted))]. - -heads(G) -> - lists:sort([V || V <- digraph:vertices(G), digraph:out_degree(G, V) =:= 0]). - -%% ------------------------------------------------------------------- - -apply_upgrades(Upgrades) -> - LockFile = lock_filename(dir()), - case rabbit_misc:lock_file(LockFile) of - ok -> - BackupDir = dir() ++ "-upgrade-backup", - info("Upgrades: ~w to apply~n", [length(Upgrades)]), - case rabbit_mnesia:copy_db(BackupDir) of - ok -> - %% We need to make the backup after creating the - %% lock file so that it protects us from trying to - %% overwrite the backup. Unfortunately this means - %% the lock file exists in the backup too, which - %% is not intuitive. Remove it. - ok = file:delete(lock_filename(BackupDir)), - info("Upgrades: Mnesia dir backed up to ~p~n", [BackupDir]), - [apply_upgrade(Upgrade) || Upgrade <- Upgrades], - info("Upgrades: All upgrades applied successfully~n", []), - ok = write_version(), - ok = rabbit_misc:recursive_delete([BackupDir]), - info("Upgrades: Mnesia backup removed~n", []), - ok = file:delete(LockFile); - {error, E} -> - %% If we can't backup, the upgrade hasn't started - %% hence we don't need the lockfile since the real - %% mnesia dir is the good one. - ok = file:delete(LockFile), - throw({could_not_back_up_mnesia_dir, E}) - end; - {error, eexist} -> - throw({error, previous_upgrade_failed}) - end. - -apply_upgrade({M, F}) -> - info("Upgrades: Applying ~w:~w~n", [M, F]), - ok = apply(M, F, []). - -%% ------------------------------------------------------------------- - -dir() -> rabbit_mnesia:dir(). - -schema_filename() -> filename:join(dir(), ?VERSION_FILENAME). - -lock_filename(Dir) -> filename:join(Dir, ?LOCK_FILENAME). - -%% NB: we cannot use rabbit_log here since it may not have been -%% started yet -info(Msg, Args) -> error_logger:info_msg(Msg, Args). diff --git a/src/rabbit_upgrade_functions.erl b/src/rabbit_upgrade_functions.erl deleted file mode 100644 index b9dbe418..00000000 --- a/src/rabbit_upgrade_functions.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade_functions). - --include("rabbit.hrl"). - --compile([export_all]). - --rabbit_upgrade({remove_user_scope, []}). --rabbit_upgrade({hash_passwords, []}). --rabbit_upgrade({add_ip_to_listener, []}). --rabbit_upgrade({internal_exchanges, []}). --rabbit_upgrade({user_to_internal_user, [hash_passwords]}). --rabbit_upgrade({topic_trie, []}). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --spec(remove_user_scope/0 :: () -> 'ok'). --spec(hash_passwords/0 :: () -> 'ok'). --spec(add_ip_to_listener/0 :: () -> 'ok'). --spec(internal_exchanges/0 :: () -> 'ok'). --spec(user_to_internal_user/0 :: () -> 'ok'). --spec(topic_trie/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -%% It's a bad idea to use records or record_info here, even for the -%% destination form. Because in the future, the destination form of -%% your current transform may not match the record any more, and it -%% would be messy to have to go back and fix old transforms at that -%% point. - -remove_user_scope() -> - transform( - rabbit_user_permission, - fun ({user_permission, UV, {permission, _Scope, Conf, Write, Read}}) -> - {user_permission, UV, {permission, Conf, Write, Read}} - end, - [user_vhost, permission]). - -hash_passwords() -> - transform( - rabbit_user, - fun ({user, Username, Password, IsAdmin}) -> - Hash = rabbit_auth_backend_internal:hash_password(Password), - {user, Username, Hash, IsAdmin} - end, - [username, password_hash, is_admin]). - -add_ip_to_listener() -> - transform( - rabbit_listener, - fun ({listener, Node, Protocol, Host, Port}) -> - {listener, Node, Protocol, Host, {0,0,0,0}, Port} - end, - [node, protocol, host, ip_address, port]). - -internal_exchanges() -> - Tables = [rabbit_exchange, rabbit_durable_exchange], - AddInternalFun = - fun ({exchange, Name, Type, Durable, AutoDelete, Args}) -> - {exchange, Name, Type, Durable, AutoDelete, false, Args} - end, - [ ok = transform(T, - AddInternalFun, - [name, type, durable, auto_delete, internal, arguments]) - || T <- Tables ], - ok. - -user_to_internal_user() -> - transform( - rabbit_user, - fun({user, Username, PasswordHash, IsAdmin}) -> - {internal_user, Username, PasswordHash, IsAdmin} - end, - [username, password_hash, is_admin], internal_user). - -topic_trie() -> - create(rabbit_topic_trie_edge, [{record_name, topic_trie_edge}, - {attributes, [trie_edge, node_id]}, - {type, ordered_set}]), - create(rabbit_topic_trie_binding, [{record_name, topic_trie_binding}, - {attributes, [trie_binding, value]}, - {type, ordered_set}]). - -%%-------------------------------------------------------------------- - -transform(TableName, Fun, FieldList) -> - rabbit_mnesia:wait_for_tables([TableName]), - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList), - ok. - -transform(TableName, Fun, FieldList, NewRecordName) -> - rabbit_mnesia:wait_for_tables([TableName]), - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList, - NewRecordName), - ok. - -create(Tab, TabDef) -> - {atomic, ok} = mnesia:create_table(Tab, TabDef), - ok. diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl deleted file mode 100644 index 1b29756b..00000000 --- a/src/rabbit_variable_queue.erl +++ /dev/null @@ -1,1842 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_variable_queue). - --export([init/5, terminate/1, delete_and_terminate/1, - purge/1, publish/3, publish_delivered/4, drain_confirmed/1, - fetch/2, ack/2, tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, - requeue/3, len/1, is_empty/1, dropwhile/2, - set_ram_duration_target/2, ram_duration/1, - needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, - status/1, multiple_routing_keys/0]). - --export([start/1, stop/0]). - -%% exported for testing only --export([start_msg_store/2, stop_msg_store/0, init/7]). - -%%---------------------------------------------------------------------------- -%% Definitions: - -%% alpha: this is a message where both the message itself, and its -%% position within the queue are held in RAM -%% -%% beta: this is a message where the message itself is only held on -%% disk, but its position within the queue is held in RAM. -%% -%% gamma: this is a message where the message itself is only held on -%% disk, but its position is both in RAM and on disk. -%% -%% delta: this is a collection of messages, represented by a single -%% term, where the messages and their position are only held on -%% disk. -%% -%% Note that for persistent messages, the message and its position -%% within the queue are always held on disk, *in addition* to being in -%% one of the above classifications. -%% -%% Also note that within this code, the term gamma never -%% appears. Instead, gammas are defined by betas who have had their -%% queue position recorded on disk. -%% -%% In general, messages move q1 -> q2 -> delta -> q3 -> q4, though -%% many of these steps are frequently skipped. q1 and q4 only hold -%% alphas, q2 and q3 hold both betas and gammas (as queues of queues, -%% using the bpqueue module where the block prefix determines whether -%% they're betas or gammas). When a message arrives, its -%% classification is determined. It is then added to the rightmost -%% appropriate queue. -%% -%% If a new message is determined to be a beta or gamma, q1 is -%% empty. If a new message is determined to be a delta, q1 and q2 are -%% empty (and actually q4 too). -%% -%% When removing messages from a queue, if q4 is empty then q3 is read -%% directly. If q3 becomes empty then the next segment's worth of -%% messages from delta are read into q3, reducing the size of -%% delta. If the queue is non empty, either q4 or q3 contain -%% entries. It is never permitted for delta to hold all the messages -%% in the queue. -%% -%% The duration indicated to us by the memory_monitor is used to -%% calculate, given our current ingress and egress rates, how many -%% messages we should hold in RAM. We track the ingress and egress -%% rates for both messages and pending acks and rates for both are -%% considered when calculating the number of messages to hold in -%% RAM. When we need to push alphas to betas or betas to gammas, we -%% favour writing out messages that are further from the head of the -%% queue. This minimises writes to disk, as the messages closer to the -%% tail of the queue stay in the queue for longer, thus do not need to -%% be replaced as quickly by sending other messages to disk. -%% -%% Whilst messages are pushed to disk and forgotten from RAM as soon -%% as requested by a new setting of the queue RAM duration, the -%% inverse is not true: we only load messages back into RAM as -%% demanded as the queue is read from. Thus only publishes to the -%% queue will take up available spare capacity. -%% -%% When we report our duration to the memory monitor, we calculate -%% average ingress and egress rates over the last two samples, and -%% then calculate our duration based on the sum of the ingress and -%% egress rates. More than two samples could be used, but it's a -%% balance between responding quickly enough to changes in -%% producers/consumers versus ignoring temporary blips. The problem -%% with temporary blips is that with just a few queues, they can have -%% substantial impact on the calculation of the average duration and -%% hence cause unnecessary I/O. Another alternative is to increase the -%% amqqueue_process:RAM_DURATION_UPDATE_PERIOD to beyond 5 -%% seconds. However, that then runs the risk of being too slow to -%% inform the memory monitor of changes. Thus a 5 second interval, -%% plus a rolling average over the last two samples seems to work -%% well in practice. -%% -%% The sum of the ingress and egress rates is used because the egress -%% rate alone is not sufficient. Adding in the ingress rate means that -%% queues which are being flooded by messages are given more memory, -%% resulting in them being able to process the messages faster (by -%% doing less I/O, or at least deferring it) and thus helping keep -%% their mailboxes empty and thus the queue as a whole is more -%% responsive. If such a queue also has fast but previously idle -%% consumers, the consumer can then start to be driven as fast as it -%% can go, whereas if only egress rate was being used, the incoming -%% messages may have to be written to disk and then read back in, -%% resulting in the hard disk being a bottleneck in driving the -%% consumers. Generally, we want to give Rabbit every chance of -%% getting rid of messages as fast as possible and remaining -%% responsive, and using only the egress rate impacts that goal. -%% -%% If a queue is full of transient messages, then the transition from -%% betas to deltas will be potentially very expensive as millions of -%% entries must be written to disk by the queue_index module. This can -%% badly stall the queue. In order to avoid this, the proportion of -%% gammas / (betas+gammas) must not be lower than (betas+gammas) / -%% (alphas+betas+gammas). As the queue grows or available memory -%% shrinks, the latter ratio increases, requiring the conversion of -%% more gammas to betas in order to maintain the invariant. At the -%% point at which betas and gammas must be converted to deltas, there -%% should be very few betas remaining, thus the transition is fast (no -%% work needs to be done for the gamma -> delta transition). -%% -%% The conversion of betas to gammas is done in batches of exactly -%% ?IO_BATCH_SIZE. This value should not be too small, otherwise the -%% frequent operations on the queues of q2 and q3 will not be -%% effectively amortised (switching the direction of queue access -%% defeats amortisation), nor should it be too big, otherwise -%% converting a batch stalls the queue for too long. Therefore, it -%% must be just right. ram_index_count is used here and is the number -%% of betas. -%% -%% The conversion from alphas to betas is also chunked, but only to -%% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at -%% any one time. This further smooths the effects of changes to the -%% target_ram_count and ensures the queue remains responsive -%% even when there is a large amount of IO work to do. The -%% idle_timeout callback is utilised to ensure that conversions are -%% done as promptly as possible whilst ensuring the queue remains -%% responsive. -%% -%% In the queue we keep track of both messages that are pending -%% delivery and messages that are pending acks. This ensures that -%% purging (deleting the former) and deletion (deleting the former and -%% the latter) are both cheap and do require any scanning through qi -%% segments. -%% -%% Pending acks are recorded in memory either as the tuple {SeqId, -%% MsgId, MsgProps} (tuple-form) or as the message itself (message- -%% form). Acks for persistent messages are always stored in the tuple- -%% form. Acks for transient messages are also stored in tuple-form if -%% the message has been sent to disk as part of the memory reduction -%% process. For transient messages that haven't already been written -%% to disk, acks are stored in message-form. -%% -%% During memory reduction, acks stored in message-form are converted -%% to tuple-form, and the corresponding messages are pushed out to -%% disk. -%% -%% The order in which alphas are pushed to betas and message-form acks -%% are pushed to disk is determined dynamically. We always prefer to -%% push messages for the source (alphas or acks) that is growing the -%% fastest (with growth measured as avg. ingress - avg. egress). In -%% each round of memory reduction a chunk of messages at most -%% ?IO_BATCH_SIZE in size is allocated to be pushed to disk. The -%% fastest growing source will be reduced by as much of this chunk as -%% possible. If there is any remaining allocation in the chunk after -%% the first source has been reduced to zero, the second source will -%% be reduced by as much of the remaining chunk as possible. -%% -%% Notes on Clean Shutdown -%% (This documents behaviour in variable_queue, queue_index and -%% msg_store.) -%% -%% In order to try to achieve as fast a start-up as possible, if a -%% clean shutdown occurs, we try to save out state to disk to reduce -%% work on startup. In the msg_store this takes the form of the -%% index_module's state, plus the file_summary ets table, and client -%% refs. In the VQ, this takes the form of the count of persistent -%% messages in the queue and references into the msg_stores. The -%% queue_index adds to these terms the details of its segments and -%% stores the terms in the queue directory. -%% -%% Two message stores are used. One is created for persistent messages -%% to durable queues that must survive restarts, and the other is used -%% for all other messages that just happen to need to be written to -%% disk. On start up we can therefore nuke the transient message -%% store, and be sure that the messages in the persistent store are -%% all that we need. -%% -%% The references to the msg_stores are there so that the msg_store -%% knows to only trust its saved state if all of the queues it was -%% previously talking to come up cleanly. Likewise, the queues -%% themselves (esp queue_index) skips work in init if all the queues -%% and msg_store were shutdown cleanly. This gives both good speed -%% improvements and also robustness so that if anything possibly went -%% wrong in shutdown (or there was subsequent manual tampering), all -%% messages and queues that can be recovered are recovered, safely. -%% -%% To delete transient messages lazily, the variable_queue, on -%% startup, stores the next_seq_id reported by the queue_index as the -%% transient_threshold. From that point on, whenever it's reading a -%% message off disk via the queue_index, if the seq_id is below this -%% threshold and the message is transient then it drops the message -%% (the message itself won't exist on disk because it would have been -%% stored in the transient msg_store which would have had its saved -%% state nuked on startup). This avoids the expensive operation of -%% scanning the entire queue on startup in order to delete transient -%% messages that were only pushed to disk to save memory. -%% -%%---------------------------------------------------------------------------- - --behaviour(rabbit_backing_queue). - --record(vqstate, - { q1, - q2, - delta, - q3, - q4, - next_seq_id, - pending_ack, - pending_ack_index, - ram_ack_index, - index_state, - msg_store_clients, - on_sync, - durable, - transient_threshold, - - async_callback, - sync_callback, - - len, - persistent_count, - - target_ram_count, - ram_msg_count, - ram_msg_count_prev, - ram_ack_count_prev, - ram_index_count, - out_counter, - in_counter, - rates, - msgs_on_disk, - msg_indices_on_disk, - unconfirmed, - confirmed, - ack_out_counter, - ack_in_counter, - ack_rates - }). - --record(rates, { egress, ingress, avg_egress, avg_ingress, timestamp }). - --record(msg_status, - { seq_id, - msg_id, - msg, - is_persistent, - is_delivered, - msg_on_disk, - index_on_disk, - msg_props - }). - --record(delta, - { start_seq_id, %% start_seq_id is inclusive - count, - end_seq_id %% end_seq_id is exclusive - }). - --record(tx, { pending_messages, pending_acks }). - --record(sync, { acks_persistent, acks_all, pubs, funs }). - -%% When we discover, on publish, that we should write some indices to -%% disk for some betas, the IO_BATCH_SIZE sets the number of betas -%% that we must be due to write indices for before we do any work at -%% all. This is both a minimum and a maximum - we don't write fewer -%% than IO_BATCH_SIZE indices out in one go, and we don't write more - -%% we can always come back on the next publish to do more. --define(IO_BATCH_SIZE, 64). --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({multiple_routing_keys, []}). - --ifdef(use_specs). - --type(timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --type(seq_id() :: non_neg_integer()). --type(ack() :: seq_id()). - --type(rates() :: #rates { egress :: {timestamp(), non_neg_integer()}, - ingress :: {timestamp(), non_neg_integer()}, - avg_egress :: float(), - avg_ingress :: float(), - timestamp :: timestamp() }). - --type(delta() :: #delta { start_seq_id :: non_neg_integer(), - count :: non_neg_integer(), - end_seq_id :: non_neg_integer() }). - --type(sync() :: #sync { acks_persistent :: [[seq_id()]], - acks_all :: [[seq_id()]], - pubs :: [{message_properties_transformer(), - [rabbit_types:basic_message()]}], - funs :: [fun (() -> any())] }). - --type(state() :: #vqstate { - q1 :: queue(), - q2 :: bpqueue:bpqueue(), - delta :: delta(), - q3 :: bpqueue:bpqueue(), - q4 :: queue(), - next_seq_id :: seq_id(), - pending_ack :: dict(), - ram_ack_index :: gb_tree(), - index_state :: any(), - msg_store_clients :: 'undefined' | {{any(), binary()}, - {any(), binary()}}, - on_sync :: sync(), - durable :: boolean(), - transient_threshold :: non_neg_integer(), - - async_callback :: async_callback(), - sync_callback :: sync_callback(), - - len :: non_neg_integer(), - persistent_count :: non_neg_integer(), - - target_ram_count :: non_neg_integer() | 'infinity', - ram_msg_count :: non_neg_integer(), - ram_msg_count_prev :: non_neg_integer(), - ram_index_count :: non_neg_integer(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), - rates :: rates(), - msgs_on_disk :: gb_set(), - msg_indices_on_disk :: gb_set(), - unconfirmed :: gb_set(), - confirmed :: gb_set(), - ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer(), - ack_rates :: rates() }). - --include("rabbit_backing_queue_spec.hrl"). - --spec(multiple_routing_keys/0 :: () -> 'ok'). - --endif. - --define(BLANK_DELTA, #delta { start_seq_id = undefined, - count = 0, - end_seq_id = undefined }). --define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, - count = 0, - end_seq_id = Z }). - --define(BLANK_SYNC, #sync { acks_persistent = [], - acks_all = [], - pubs = [], - funs = [] }). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start(DurableQueues) -> - {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), - start_msg_store( - [Ref || Terms <- AllTerms, - begin - Ref = proplists:get_value(persistent_ref, Terms), - Ref =/= undefined - end], - StartFunState). - -stop() -> stop_msg_store(). - -start_msg_store(Refs, StartFunState) -> - ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, - [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), - undefined, {fun (ok) -> finished end, ok}]), - ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, - [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), - Refs, StartFunState]). - -stop_msg_store() -> - ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), - ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). - -init(QueueName, IsDurable, Recover, AsyncCallback, SyncCallback) -> - init(QueueName, IsDurable, Recover, AsyncCallback, SyncCallback, - fun (MsgIds, ActionTaken) -> - msgs_written_to_disk(AsyncCallback, MsgIds, ActionTaken) - end, - fun (MsgIds) -> msg_indices_written_to_disk(AsyncCallback, MsgIds) end). - -init(QueueName, IsDurable, false, AsyncCallback, SyncCallback, - MsgOnDiskFun, MsgIdxOnDiskFun) -> - IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), - init(IsDurable, IndexState, 0, [], AsyncCallback, SyncCallback, - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskFun, AsyncCallback); - false -> undefined - end, - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined, AsyncCallback)); - -init(QueueName, true, true, AsyncCallback, SyncCallback, - MsgOnDiskFun, MsgIdxOnDiskFun) -> - Terms = rabbit_queue_index:shutdown_terms(QueueName), - {PRef, TRef, Terms1} = - case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of - [] -> {proplists:get_value(persistent_ref, Terms), - proplists:get_value(transient_ref, Terms), - Terms}; - _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} - end, - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef, - MsgOnDiskFun, AsyncCallback), - TransientClient = msg_store_client_init(?TRANSIENT_MSG_STORE, TRef, - undefined, AsyncCallback), - {DeltaCount, IndexState} = - rabbit_queue_index:recover( - QueueName, Terms1, - rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), - fun (MsgId) -> - rabbit_msg_store:contains(MsgId, PersistentClient) - end, - MsgIdxOnDiskFun), - init(true, IndexState, DeltaCount, Terms1, AsyncCallback, SyncCallback, - PersistentClient, TransientClient). - -terminate(State) -> - State1 = #vqstate { persistent_count = PCount, - index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(true, tx_commit_index(State)), - PRef = case MSCStateP of - undefined -> undefined; - _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), - rabbit_msg_store:client_ref(MSCStateP) - end, - ok = rabbit_msg_store:client_terminate(MSCStateT), - TRef = rabbit_msg_store:client_ref(MSCStateT), - Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}, - {persistent_count, PCount}], - a(State1 #vqstate { index_state = rabbit_queue_index:terminate( - Terms, IndexState), - msg_store_clients = undefined }). - -%% the only difference between purge and delete is that delete also -%% needs to delete everything that's been delivered and not ack'd. -delete_and_terminate(State) -> - %% TODO: there is no need to interact with qi at all - which we do - %% as part of 'purge' and 'remove_pending_ack', other than - %% deleting it. - {_PurgeCount, State1} = purge(State), - State2 = #vqstate { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(false, State1), - IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), - case MSCStateP of - undefined -> ok; - _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) - end, - rabbit_msg_store:client_delete_and_terminate(MSCStateT), - a(State2 #vqstate { index_state = IndexState1, - msg_store_clients = undefined }). - -purge(State = #vqstate { q4 = Q4, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% TODO: when there are no pending acks, which is a common case, - %% we could simply wipe the qi instead of issuing delivers and - %% acks for all the messages. - {LensByStore, IndexState1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q4, - orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #vqstate { q1 = Q1, - index_state = IndexState2, - msg_store_clients = MSCState1 }} = - purge_betas_and_deltas(LensByStore, - State #vqstate { q4 = queue:new(), - index_state = IndexState1 }), - {LensByStore2, IndexState3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q1, - LensByStore1, IndexState2, MSCState1), - PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, a(State1 #vqstate { q1 = queue:new(), - index_state = IndexState3, - len = 0, - ram_msg_count = 0, - ram_index_count = 0, - persistent_count = PCount1 })}. - -publish(Msg, MsgProps, State) -> - {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), - a(reduce_memory_use(State1)). - -publish_delivered(false, #basic_message { id = MsgId }, - #message_properties { needs_confirming = NeedsConfirming }, - State = #vqstate { async_callback = Callback, len = 0 }) -> - case NeedsConfirming of - true -> blind_confirm(Callback, gb_sets:singleton(MsgId)); - false -> ok - end, - {undefined, a(State)}; -publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, - id = MsgId }, - MsgProps = #message_properties { - needs_confirming = NeedsConfirming }, - State = #vqstate { len = 0, - next_seq_id = SeqId, - out_counter = OutCount, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = true }, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = record_pending_ack(m(MsgStatus1), State1), - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, MsgId, UC), - {SeqId, a(reduce_memory_use( - State2 #vqstate { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - unconfirmed = UC1 }))}. - -drain_confirmed(State = #vqstate { confirmed = C }) -> - {gb_sets:to_list(C), State #vqstate { confirmed = gb_sets:new() }}. - -dropwhile(Pred, State) -> - {_OkOrEmpty, State1} = dropwhile1(Pred, State), - a(State1). - -dropwhile1(Pred, State) -> - internal_queue_out( - fun(MsgStatus = #msg_status { msg_props = MsgProps }, State1) -> - case Pred(MsgProps) of - true -> - {_, State2} = internal_fetch(false, MsgStatus, State1), - dropwhile1(Pred, State2); - false -> - %% message needs to go back into Q4 (or maybe go - %% in for the first time if it was loaded from - %% Q3). Also the msg contents might not be in - %% RAM, so read them in now - {MsgStatus1, State2 = #vqstate { q4 = Q4 }} = - read_msg(MsgStatus, State1), - {ok, State2 #vqstate {q4 = queue:in_r(MsgStatus1, Q4) }} - end - end, State). - -fetch(AckRequired, State) -> - internal_queue_out( - fun(MsgStatus, State1) -> - %% it's possible that the message wasn't read from disk - %% at this point, so read it in. - {MsgStatus1, State2} = read_msg(MsgStatus, State1), - internal_fetch(AckRequired, MsgStatus1, State2) - end, State). - -internal_queue_out(Fun, State = #vqstate { q4 = Q4 }) -> - case queue:out(Q4) of - {empty, _Q4} -> - case fetch_from_q3(State) of - {empty, State1} = Result -> a(State1), Result; - {loaded, {MsgStatus, State1}} -> Fun(MsgStatus, State1) - end; - {{value, MsgStatus}, Q4a} -> - Fun(MsgStatus, State #vqstate { q4 = Q4a }) - end. - -read_msg(MsgStatus = #msg_status { msg = undefined, - msg_id = MsgId, - is_persistent = IsPersistent }, - State = #vqstate { ram_msg_count = RamMsgCount, - msg_store_clients = MSCState}) -> - {{ok, Msg = #basic_message {}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, MsgId), - {MsgStatus #msg_status { msg = Msg }, - State #vqstate { ram_msg_count = RamMsgCount + 1, - msg_store_clients = MSCState1 }}; -read_msg(MsgStatus, State) -> - {MsgStatus, State}. - -internal_fetch(AckRequired, MsgStatus = #msg_status { - seq_id = SeqId, - msg_id = MsgId, - msg = Msg, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - State = #vqstate {ram_msg_count = RamMsgCount, - out_counter = OutCount, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% 1. Mark it delivered if necessary - IndexState1 = maybe_write_delivered( - IndexOnDisk andalso not IsDelivered, - SeqId, IndexState), - - %% 2. Remove from msg_store and queue index, if necessary - Rem = fun () -> - ok = msg_store_remove(MSCState, IsPersistent, [MsgId]) - end, - Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, - IndexState2 = - case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of - {false, true, false, _} -> Rem(), IndexState1; - {false, true, true, _} -> Rem(), Ack(); - { true, true, true, false} -> Ack(); - _ -> IndexState1 - end, - - %% 3. If an ack is required, add something sensible to PA - {AckTag, State1} = case AckRequired of - true -> StateN = record_pending_ack( - MsgStatus #msg_status { - is_delivered = true }, State), - {SeqId, StateN}; - false -> {undefined, State} - end, - - PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), - Len1 = Len - 1, - RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), - - {{Msg, IsDelivered, AckTag, Len1}, - a(State1 #vqstate { ram_msg_count = RamMsgCount1, - out_counter = OutCount + 1, - index_state = IndexState2, - len = Len1, - persistent_count = PCount1 })}. - -ack(AckTags, State) -> - a(ack(fun msg_store_remove/3, - fun (_, State0) -> State0 end, - AckTags, State)). - -tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, - State = #vqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> - Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), - case IsPersistent andalso IsDurable of - true -> MsgStatus = msg_status(true, undefined, Msg, MsgProps), - #msg_status { msg_on_disk = true } = - maybe_write_msg_to_disk(false, MsgStatus, MSCState); - false -> ok - end, - a(State). - -tx_ack(Txn, AckTags, State) -> - Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), - State. - -tx_rollback(Txn, State = #vqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), - erase_tx(Txn), - ok = case IsDurable of - true -> msg_store_remove(MSCState, true, - persistent_msg_ids(Pubs)); - false -> ok - end, - {lists:append(AckTags), a(State)}. - -tx_commit(Txn, Fun, MsgPropsFun, - State = #vqstate { durable = IsDurable, - async_callback = AsyncCallback, - sync_callback = SyncCallback, - msg_store_clients = MSCState }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), - erase_tx(Txn), - AckTags1 = lists:append(AckTags), - PersistentMsgIds = persistent_msg_ids(Pubs), - HasPersistentPubs = PersistentMsgIds =/= [], - {AckTags1, - a(case IsDurable andalso HasPersistentPubs of - true -> MsgStoreCallback = - fun () -> msg_store_callback( - PersistentMsgIds, Pubs, AckTags1, Fun, - MsgPropsFun, AsyncCallback, SyncCallback) - end, - ok = msg_store_sync(MSCState, true, PersistentMsgIds, - fun () -> spawn(MsgStoreCallback) end), - State; - false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, - Fun, MsgPropsFun, State) - end)}. - -requeue(AckTags, MsgPropsFun, State) -> - MsgPropsFun1 = fun (MsgProps) -> - (MsgPropsFun(MsgProps)) #message_properties { - needs_confirming = false } - end, - a(reduce_memory_use( - ack(fun msg_store_release/3, - fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> - {_SeqId, State2} = publish(Msg, MsgPropsFun1(MsgProps), - true, false, State1), - State2; - ({IsPersistent, MsgId, MsgProps}, State1) -> - #vqstate { msg_store_clients = MSCState } = State1, - {{ok, Msg = #basic_message{}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, MsgId), - State2 = State1 #vqstate { msg_store_clients = MSCState1 }, - {_SeqId, State3} = publish(Msg, MsgPropsFun1(MsgProps), - true, true, State2), - State3 - end, - AckTags, State))). - -len(#vqstate { len = Len }) -> Len. - -is_empty(State) -> 0 == len(State). - -set_ram_duration_target( - DurationTarget, State = #vqstate { - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate }, - target_ram_count = TargetRamCount }) -> - Rate = - AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, - TargetRamCount1 = - case DurationTarget of - infinity -> infinity; - _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec - end, - State1 = State #vqstate { target_ram_count = TargetRamCount1 }, - a(case TargetRamCount1 == infinity orelse - (TargetRamCount =/= infinity andalso - TargetRamCount1 >= TargetRamCount) of - true -> State1; - false -> reduce_memory_use(State1) - end). - -ram_duration(State = #vqstate { - rates = #rates { timestamp = Timestamp, - egress = Egress, - ingress = Ingress } = Rates, - ack_rates = #rates { timestamp = AckTimestamp, - egress = AckEgress, - ingress = AckIngress } = ARates, - in_counter = InCount, - out_counter = OutCount, - ack_in_counter = AckInCount, - ack_out_counter = AckOutCount, - ram_msg_count = RamMsgCount, - ram_msg_count_prev = RamMsgCountPrev, - ram_ack_index = RamAckIndex, - ram_ack_count_prev = RamAckCountPrev }) -> - Now = now(), - {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), - {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), - - {AvgAckEgressRate, AckEgress1} = - update_rate(Now, AckTimestamp, AckOutCount, AckEgress), - {AvgAckIngressRate, AckIngress1} = - update_rate(Now, AckTimestamp, AckInCount, AckIngress), - - RamAckCount = gb_trees:size(RamAckIndex), - - Duration = %% msgs+acks / (msgs+acks/sec) == sec - case (AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso - AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0) of - true -> infinity; - false -> (RamMsgCountPrev + RamMsgCount + - RamAckCount + RamAckCountPrev) / - (4 * (AvgEgressRate + AvgIngressRate + - AvgAckEgressRate + AvgAckIngressRate)) - end, - - {Duration, State #vqstate { - rates = Rates #rates { - egress = Egress1, - ingress = Ingress1, - avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate, - timestamp = Now }, - ack_rates = ARates #rates { - egress = AckEgress1, - ingress = AckIngress1, - avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate, - timestamp = Now }, - in_counter = 0, - out_counter = 0, - ack_in_counter = 0, - ack_out_counter = 0, - ram_msg_count_prev = RamMsgCount, - ram_ack_count_prev = RamAckCount }}. - -needs_idle_timeout(State = #vqstate { on_sync = OnSync }) -> - case {OnSync, needs_index_sync(State)} of - {?BLANK_SYNC, false} -> - {Res, _State} = reduce_memory_use( - fun (_Quota, State1) -> {0, State1} end, - fun (_Quota, State1) -> State1 end, - fun (State1) -> State1 end, - fun (_Quota, State1) -> {0, State1} end, - State), - Res; - _ -> - true - end. - -idle_timeout(State) -> - a(reduce_memory_use(confirm_commit_index(tx_commit_index(State)))). - -handle_pre_hibernate(State = #vqstate { index_state = IndexState }) -> - State #vqstate { index_state = rabbit_queue_index:flush(IndexState) }. - -status(#vqstate { - q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - pending_ack = PA, - ram_ack_index = RAI, - on_sync = #sync { funs = From }, - target_ram_count = TargetRamCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, - next_seq_id = NextSeqId, - persistent_count = PersistentCount, - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate } }) -> - [ {q1 , queue:len(Q1)}, - {q2 , bpqueue:len(Q2)}, - {delta , Delta}, - {q3 , bpqueue:len(Q3)}, - {q4 , queue:len(Q4)}, - {len , Len}, - {pending_acks , dict:size(PA)}, - {outstanding_txns , length(From)}, - {target_ram_count , TargetRamCount}, - {ram_msg_count , RamMsgCount}, - {ram_ack_count , gb_trees:size(RAI)}, - {ram_index_count , RamIndexCount}, - {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount}, - {avg_ingress_rate , AvgIngressRate}, - {avg_egress_rate , AvgEgressRate}, - {avg_ack_ingress_rate, AvgAckIngressRate}, - {avg_ack_egress_rate , AvgAckEgressRate} ]. - -%%---------------------------------------------------------------------------- -%% Minor helpers -%%---------------------------------------------------------------------------- - -a(State = #vqstate { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - persistent_count = PersistentCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }) -> - E1 = queue:is_empty(Q1), - E2 = bpqueue:is_empty(Q2), - ED = Delta#delta.count == 0, - E3 = bpqueue:is_empty(Q3), - E4 = queue:is_empty(Q4), - LZ = Len == 0, - - true = E1 or not E3, - true = E2 or not ED, - true = ED or not E3, - true = LZ == (E3 and E4), - - true = Len >= 0, - true = PersistentCount >= 0, - true = RamMsgCount >= 0, - true = RamIndexCount >= 0, - - State. - -m(MsgStatus = #msg_status { msg = Msg, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }) -> - true = (not IsPersistent) or IndexOnDisk, - true = (not IndexOnDisk) or MsgOnDisk, - true = (Msg =/= undefined) or MsgOnDisk, - - MsgStatus. - -one_if(true ) -> 1; -one_if(false) -> 0. - -cons_if(true, E, L) -> [E | L]; -cons_if(false, _E, L) -> L. - -gb_sets_maybe_insert(false, _Val, Set) -> Set; -%% when requeueing, we re-add a msg_id to the unconfirmed set -gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). - -msg_status(IsPersistent, SeqId, Msg = #basic_message { id = MsgId }, - MsgProps) -> - #msg_status { seq_id = SeqId, msg_id = MsgId, msg = Msg, - is_persistent = IsPersistent, is_delivered = false, - msg_on_disk = false, index_on_disk = false, - msg_props = MsgProps }. - -with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> - {Result, MSCStateP1} = Fun(MSCStateP), - {Result, {MSCStateP1, MSCStateT}}; -with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> - {Result, MSCStateT1} = Fun(MSCStateT), - {Result, {MSCStateP, MSCStateT1}}. - -with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> - {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, - fun (MSCState1) -> - {Fun(MSCState1), MSCState1} - end), - Res. - -msg_store_client_init(MsgStore, MsgOnDiskFun, Callback) -> - msg_store_client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun, Callback). - -msg_store_client_init(MsgStore, Ref, MsgOnDiskFun, Callback) -> - CloseFDsFun = msg_store_close_fds_fun(MsgStore =:= ?PERSISTENT_MSG_STORE), - rabbit_msg_store:client_init( - MsgStore, Ref, MsgOnDiskFun, fun () -> Callback(CloseFDsFun) end). - -msg_store_write(MSCState, IsPersistent, MsgId, Msg) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:write(MsgId, Msg, MSCState1) end). - -msg_store_read(MSCState, IsPersistent, MsgId) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:read(MsgId, MSCState1) end). - -msg_store_remove(MSCState, IsPersistent, MsgIds) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:remove(MsgIds, MCSState1) end). - -msg_store_release(MSCState, IsPersistent, MsgIds) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:release(MsgIds, MCSState1) end). - -msg_store_sync(MSCState, IsPersistent, MsgIds, Fun) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:sync(MsgIds, Fun, MSCState1) end). - -msg_store_close_fds(MSCState, IsPersistent) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:close_all_indicated(MSCState1) end). - -msg_store_close_fds_fun(IsPersistent) -> - fun (State = #vqstate { msg_store_clients = MSCState }) -> - {ok, MSCState1} = msg_store_close_fds(MSCState, IsPersistent), - State #vqstate { msg_store_clients = MSCState1 } - end. - -maybe_write_delivered(false, _SeqId, IndexState) -> - IndexState; -maybe_write_delivered(true, SeqId, IndexState) -> - rabbit_queue_index:deliver([SeqId], IndexState). - -lookup_tx(Txn) -> case get({txn, Txn}) of - undefined -> #tx { pending_messages = [], - pending_acks = [] }; - V -> V - end. - -store_tx(Txn, Tx) -> put({txn, Txn}, Tx). - -erase_tx(Txn) -> erase({txn, Txn}). - -persistent_msg_ids(Pubs) -> - [MsgId || {#basic_message { id = MsgId, - is_persistent = true }, _MsgProps} <- Pubs]. - -betas_from_index_entries(List, TransientThreshold, IndexState) -> - {Filtered, Delivers, Acks} = - lists:foldr( - fun ({MsgId, SeqId, MsgProps, IsPersistent, IsDelivered}, - {Filtered1, Delivers1, Acks1}) -> - case SeqId < TransientThreshold andalso not IsPersistent of - true -> {Filtered1, - cons_if(not IsDelivered, SeqId, Delivers1), - [SeqId | Acks1]}; - false -> {[m(#msg_status { msg = undefined, - msg_id = MsgId, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true, - msg_props = MsgProps - }) | Filtered1], - Delivers1, - Acks1} - end - end, {[], [], []}, List), - {bpqueue:from_list([{true, Filtered}]), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -%% the first arg is the older delta -combine_deltas(?BLANK_DELTA_PATTERN(X), ?BLANK_DELTA_PATTERN(Y)) -> - ?BLANK_DELTA; -combine_deltas(?BLANK_DELTA_PATTERN(X), #delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = B) -> - true = Start + Count =< End, %% ASSERTION - B; -combine_deltas(#delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = A, ?BLANK_DELTA_PATTERN(Y)) -> - true = Start + Count =< End, %% ASSERTION - A; -combine_deltas(#delta { start_seq_id = StartLow, - count = CountLow, - end_seq_id = EndLow }, - #delta { start_seq_id = StartHigh, - count = CountHigh, - end_seq_id = EndHigh }) -> - Count = CountLow + CountHigh, - true = (StartLow =< StartHigh) %% ASSERTIONS - andalso ((StartLow + CountLow) =< EndLow) - andalso ((StartHigh + CountHigh) =< EndHigh) - andalso ((StartLow + Count) =< EndHigh), - #delta { start_seq_id = StartLow, count = Count, end_seq_id = EndHigh }. - -beta_fold(Fun, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). - -update_rate(Now, Then, Count, {OThen, OCount}) -> - %% avg over the current period and the previous - {1000000.0 * (Count + OCount) / timer:now_diff(Now, OThen), {Then, Count}}. - -%%---------------------------------------------------------------------------- -%% Internal major helpers for Public API -%%---------------------------------------------------------------------------- - -init(IsDurable, IndexState, DeltaCount, Terms, - AsyncCallback, SyncCallback, PersistentClient, TransientClient) -> - {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), - - DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), - Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of - true -> ?BLANK_DELTA; - false -> #delta { start_seq_id = LowSeqId, - count = DeltaCount1, - end_seq_id = NextSeqId } - end, - Now = now(), - State = #vqstate { - q1 = queue:new(), - q2 = bpqueue:new(), - delta = Delta, - q3 = bpqueue:new(), - q4 = queue:new(), - next_seq_id = NextSeqId, - pending_ack = dict:new(), - ram_ack_index = gb_trees:empty(), - index_state = IndexState1, - msg_store_clients = {PersistentClient, TransientClient}, - on_sync = ?BLANK_SYNC, - durable = IsDurable, - transient_threshold = NextSeqId, - - async_callback = AsyncCallback, - sync_callback = SyncCallback, - - len = DeltaCount1, - persistent_count = DeltaCount1, - - target_ram_count = infinity, - ram_msg_count = 0, - ram_msg_count_prev = 0, - ram_ack_count_prev = 0, - ram_index_count = 0, - out_counter = 0, - in_counter = 0, - rates = blank_rate(Now, DeltaCount1), - msgs_on_disk = gb_sets:new(), - msg_indices_on_disk = gb_sets:new(), - unconfirmed = gb_sets:new(), - confirmed = gb_sets:new(), - ack_out_counter = 0, - ack_in_counter = 0, - ack_rates = blank_rate(Now, 0) }, - a(maybe_deltas_to_betas(State)). - -blank_rate(Timestamp, IngressLength) -> - #rates { egress = {Timestamp, 0}, - ingress = {Timestamp, IngressLength}, - avg_egress = 0.0, - avg_ingress = 0.0, - timestamp = Timestamp }. - -msg_store_callback(PersistentMsgIds, Pubs, AckTags, Fun, MsgPropsFun, - AsyncCallback, SyncCallback) -> - case SyncCallback(fun (StateN) -> - tx_commit_post_msg_store(true, Pubs, AckTags, - Fun, MsgPropsFun, StateN) - end) of - ok -> ok; - error -> remove_persistent_messages(PersistentMsgIds, AsyncCallback) - end. - -remove_persistent_messages(MsgIds, AsyncCallback) -> - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, - undefined, AsyncCallback), - ok = rabbit_msg_store:remove(MsgIds, PersistentClient), - rabbit_msg_store:client_delete_and_terminate(PersistentClient). - -tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, - State = #vqstate { - on_sync = OnSync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - pending_ack = PA, - durable = IsDurable }) -> - PersistentAcks = - case IsDurable of - true -> [AckTag || AckTag <- AckTags, - case dict:fetch(AckTag, PA) of - #msg_status {} -> - false; - {IsPersistent, _MsgId, _MsgProps} -> - IsPersistent - end]; - false -> [] - end, - case IsDurable andalso (HasPersistentPubs orelse PersistentAcks =/= []) of - true -> State #vqstate { - on_sync = #sync { - acks_persistent = [PersistentAcks | SPAcks], - acks_all = [AckTags | SAcks], - pubs = [{MsgPropsFun, Pubs} | SPubs], - funs = [Fun | SFuns] }}; - false -> State1 = tx_commit_index( - State #vqstate { - on_sync = #sync { - acks_persistent = [], - acks_all = [AckTags], - pubs = [{MsgPropsFun, Pubs}], - funs = [Fun] } }), - State1 #vqstate { on_sync = OnSync } - end. - -tx_commit_index(State = #vqstate { on_sync = ?BLANK_SYNC }) -> - State; -tx_commit_index(State = #vqstate { on_sync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - durable = IsDurable }) -> - PAcks = lists:append(SPAcks), - Acks = lists:append(SAcks), - Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), - {Msg, MsgProps} <- lists:reverse(PubsN)], - {SeqIds, State1 = #vqstate { index_state = IndexState }} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, - MsgProps}, - {SeqIdsAcc, State2}) -> - IsPersistent1 = IsDurable andalso IsPersistent, - {SeqId, State3} = - publish(Msg, MsgProps, false, IsPersistent1, State2), - {cons_if(IsPersistent1, SeqId, SeqIdsAcc), State3} - end, {PAcks, ack(Acks, State)}, Pubs), - IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), - [ Fun() || Fun <- lists:reverse(SFuns) ], - reduce_memory_use( - State1 #vqstate { index_state = IndexState1, on_sync = ?BLANK_SYNC }). - -purge_betas_and_deltas(LensByStore, - State = #vqstate { q3 = Q3, - index_state = IndexState, - msg_store_clients = MSCState }) -> - case bpqueue:is_empty(Q3) of - true -> {LensByStore, State}; - false -> {LensByStore1, IndexState1} = - remove_queue_entries(fun beta_fold/3, Q3, - LensByStore, IndexState, MSCState), - purge_betas_and_deltas(LensByStore1, - maybe_deltas_to_betas( - State #vqstate { - q3 = bpqueue:new(), - index_state = IndexState1 })) - end. - -remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> - {MsgIdsByStore, Delivers, Acks} = - Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), - ok = orddict:fold(fun (IsPersistent, MsgIds, ok) -> - msg_store_remove(MSCState, IsPersistent, MsgIds) - end, ok, MsgIdsByStore), - {sum_msg_ids_by_store_to_len(LensByStore, MsgIdsByStore), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -remove_queue_entries1( - #msg_status { msg_id = MsgId, seq_id = SeqId, - is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, - {MsgIdsByStore, Delivers, Acks}) -> - {case MsgOnDisk of - true -> rabbit_misc:orddict_cons(IsPersistent, MsgId, MsgIdsByStore); - false -> MsgIdsByStore - end, - cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), - cons_if(IndexOnDisk, SeqId, Acks)}. - -sum_msg_ids_by_store_to_len(LensByStore, MsgIdsByStore) -> - orddict:fold( - fun (IsPersistent, MsgIds, LensByStore1) -> - orddict:update_counter(IsPersistent, length(MsgIds), LensByStore1) - end, LensByStore, MsgIdsByStore). - -%%---------------------------------------------------------------------------- -%% Internal gubbins for publishing -%%---------------------------------------------------------------------------- - -publish(Msg = #basic_message { is_persistent = IsPersistent, id = MsgId }, - MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, MsgOnDisk, - State = #vqstate { q1 = Q1, q3 = Q3, q4 = Q4, - next_seq_id = SeqId, - len = Len, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - ram_msg_count = RamMsgCount, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = case bpqueue:is_empty(Q3) of - false -> State1 #vqstate { q1 = queue:in(m(MsgStatus1), Q1) }; - true -> State1 #vqstate { q4 = queue:in(m(MsgStatus1), Q4) } - end, - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, MsgId, UC), - {SeqId, State2 #vqstate { next_seq_id = SeqId + 1, - len = Len + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - ram_msg_count = RamMsgCount + 1, - unconfirmed = UC1 }}. - -maybe_write_msg_to_disk(_Force, MsgStatus = #msg_status { - msg_on_disk = true }, _MSCState) -> - MsgStatus; -maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { - msg = Msg, msg_id = MsgId, - is_persistent = IsPersistent }, MSCState) - when Force orelse IsPersistent -> - Msg1 = Msg #basic_message { - %% don't persist any recoverable decoded properties - content = rabbit_binary_parser:clear_decoded_content( - Msg #basic_message.content)}, - ok = msg_store_write(MSCState, IsPersistent, MsgId, Msg1), - MsgStatus #msg_status { msg_on_disk = true }; -maybe_write_msg_to_disk(_Force, MsgStatus, _MSCState) -> - MsgStatus. - -maybe_write_index_to_disk(_Force, MsgStatus = #msg_status { - index_on_disk = true }, IndexState) -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - {MsgStatus, IndexState}; -maybe_write_index_to_disk(Force, MsgStatus = #msg_status { - msg_id = MsgId, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_props = MsgProps}, IndexState) - when Force orelse IsPersistent -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - IndexState1 = rabbit_queue_index:publish( - MsgId, SeqId, MsgProps, IsPersistent, IndexState), - {MsgStatus #msg_status { index_on_disk = true }, - maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; -maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> - {MsgStatus, IndexState}. - -maybe_write_to_disk(ForceMsg, ForceIndex, MsgStatus, - State = #vqstate { index_state = IndexState, - msg_store_clients = MSCState }) -> - MsgStatus1 = maybe_write_msg_to_disk(ForceMsg, MsgStatus, MSCState), - {MsgStatus2, IndexState1} = - maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), - {MsgStatus2, State #vqstate { index_state = IndexState1 }}. - -%%---------------------------------------------------------------------------- -%% Internal gubbins for acks -%%---------------------------------------------------------------------------- - -record_pending_ack(#msg_status { seq_id = SeqId, - msg_id = MsgId, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - msg_props = MsgProps } = MsgStatus, - State = #vqstate { pending_ack = PA, - ram_ack_index = RAI, - ack_in_counter = AckInCount}) -> - {AckEntry, RAI1} = - case MsgOnDisk of - true -> {{IsPersistent, MsgId, MsgProps}, RAI}; - false -> {MsgStatus, gb_trees:insert(SeqId, MsgId, RAI)} - end, - PA1 = dict:store(SeqId, AckEntry, PA), - State #vqstate { pending_ack = PA1, - ram_ack_index = RAI1, - ack_in_counter = AckInCount + 1}. - -remove_pending_ack(KeepPersistent, - State = #vqstate { pending_ack = PA, - index_state = IndexState, - msg_store_clients = MSCState }) -> - {PersistentSeqIds, MsgIdsByStore} = - dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - State1 = State #vqstate { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, - case KeepPersistent of - true -> case orddict:find(false, MsgIdsByStore) of - error -> State1; - {ok, MsgIds} -> ok = msg_store_remove(MSCState, false, - MsgIds), - State1 - end; - false -> IndexState1 = - rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = msg_store_remove(MSCState, IsPersistent, MsgIds) - || {IsPersistent, MsgIds} <- orddict:to_list(MsgIdsByStore)], - State1 #vqstate { index_state = IndexState1 } - end. - -ack(_MsgStoreFun, _Fun, [], State) -> - State; -ack(MsgStoreFun, Fun, AckTags, State) -> - {{PersistentSeqIds, MsgIdsByStore}, - State1 = #vqstate { index_state = IndexState, - msg_store_clients = MSCState, - persistent_count = PCount, - ack_out_counter = AckOutCount }} = - lists:foldl( - fun (SeqId, {Acc, State2 = #vqstate { pending_ack = PA, - ram_ack_index = RAI }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, State2 #vqstate { - pending_ack = dict:erase(SeqId, PA), - ram_ack_index = - gb_trees:delete_any(SeqId, RAI)})} - end, {accumulate_ack_init(), State}, AckTags), - IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = MsgStoreFun(MSCState, IsPersistent, MsgIds) - || {IsPersistent, MsgIds} <- orddict:to_list(MsgIdsByStore)], - PCount1 = PCount - find_persistent_count(sum_msg_ids_by_store_to_len( - orddict:new(), MsgIdsByStore)), - State1 #vqstate { index_state = IndexState1, - persistent_count = PCount1, - ack_out_counter = AckOutCount + length(AckTags) }. - -accumulate_ack_init() -> {[], orddict:new()}. - -accumulate_ack(_SeqId, #msg_status { is_persistent = false, %% ASSERTIONS - msg_on_disk = false, - index_on_disk = false }, - {PersistentSeqIdsAcc, MsgIdsByStore}) -> - {PersistentSeqIdsAcc, MsgIdsByStore}; -accumulate_ack(SeqId, {IsPersistent, MsgId, _MsgProps}, - {PersistentSeqIdsAcc, MsgIdsByStore}) -> - {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), - rabbit_misc:orddict_cons(IsPersistent, MsgId, MsgIdsByStore)}. - -find_persistent_count(LensByStore) -> - case orddict:find(true, LensByStore) of - error -> 0; - {ok, Len} -> Len - end. - -%%---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%%---------------------------------------------------------------------------- - -confirm_commit_index(State = #vqstate { index_state = IndexState }) -> - case needs_index_sync(State) of - true -> State #vqstate { - index_state = rabbit_queue_index:sync(IndexState) }; - false -> State - end. - -record_confirms(MsgIdSet, State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC, - confirmed = C }) -> - State #vqstate { msgs_on_disk = gb_sets:difference(MOD, MsgIdSet), - msg_indices_on_disk = gb_sets:difference(MIOD, MsgIdSet), - unconfirmed = gb_sets:difference(UC, MsgIdSet), - confirmed = gb_sets:union (C, MsgIdSet) }. - -needs_index_sync(#vqstate { msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - %% If UC is empty then by definition, MIOD and MOD are also empty - %% and there's nothing that can be pending a sync. - - %% If UC is not empty, then we want to find is_empty(UC - MIOD), - %% but the subtraction can be expensive. Thus instead, we test to - %% see if UC is a subset of MIOD. This can only be the case if - %% MIOD == UC, which would indicate that every message in UC is - %% also in MIOD and is thus _all_ pending on a msg_store sync, not - %% on a qi sync. Thus the negation of this is sufficient. Because - %% is_subset is short circuiting, this is more efficient than the - %% subtraction. - not (gb_sets:is_empty(UC) orelse gb_sets:is_subset(UC, MIOD)). - -blind_confirm(Callback, MsgIdSet) -> - Callback(fun (State) -> record_confirms(MsgIdSet, State) end). - -msgs_written_to_disk(Callback, MsgIdSet, removed) -> - blind_confirm(Callback, MsgIdSet); -msgs_written_to_disk(Callback, MsgIdSet, written) -> - Callback(fun (State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - Confirmed = gb_sets:intersection(UC, MsgIdSet), - record_confirms(gb_sets:intersection(MsgIdSet, MIOD), - State #vqstate { - msgs_on_disk = - gb_sets:union(MOD, Confirmed) }) - end). - -msg_indices_written_to_disk(Callback, MsgIdSet) -> - Callback(fun (State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - Confirmed = gb_sets:intersection(UC, MsgIdSet), - record_confirms(gb_sets:intersection(MsgIdSet, MOD), - State #vqstate { - msg_indices_on_disk = - gb_sets:union(MIOD, Confirmed) }) - end). - -%%---------------------------------------------------------------------------- -%% Phase changes -%%---------------------------------------------------------------------------- - -%% Determine whether a reduction in memory use is necessary, and call -%% functions to perform the required phase changes. The function can -%% also be used to just do the former, by passing in dummy phase -%% change functions. -%% -%% The function does not report on any needed beta->delta conversions, -%% though the conversion function for that is called as necessary. The -%% reason is twofold. Firstly, this is safe because the conversion is -%% only ever necessary just after a transition to a -%% target_ram_count of zero or after an incremental alpha->beta -%% conversion. In the former case the conversion is performed straight -%% away (i.e. any betas present at the time are converted to deltas), -%% and in the latter case the need for a conversion is flagged up -%% anyway. Secondly, this is necessary because we do not have a -%% precise and cheap predicate for determining whether a beta->delta -%% conversion is necessary - due to the complexities of retaining up -%% one segment's worth of messages in q3 - and thus would risk -%% perpetually reporting the need for a conversion when no such -%% conversion is needed. That in turn could cause an infinite loop. -reduce_memory_use(_AlphaBetaFun, _BetaGammaFun, _BetaDeltaFun, _AckFun, - State = #vqstate {target_ram_count = infinity}) -> - {false, State}; -reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, - State = #vqstate { - ram_ack_index = RamAckIndex, - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount, - rates = #rates { avg_ingress = AvgIngress, - avg_egress = AvgEgress }, - ack_rates = #rates { avg_ingress = AvgAckIngress, - avg_egress = AvgAckEgress } - }) -> - - {Reduce, State1} = - case chunk_size(RamMsgCount + gb_trees:size(RamAckIndex), - TargetRamCount) of - 0 -> {false, State}; - %% Reduce memory of pending acks and alphas. The order is - %% determined based on which is growing faster. Whichever - %% comes second may very well get a quota of 0 if the - %% first manages to push out the max number of messages. - S1 -> {_, State2} = - lists:foldl(fun (ReduceFun, {QuotaN, StateN}) -> - ReduceFun(QuotaN, StateN) - end, - {S1, State}, - case (AvgAckIngress - AvgAckEgress) > - (AvgIngress - AvgEgress) of - true -> [AckFun, AlphaBetaFun]; - false -> [AlphaBetaFun, AckFun] - end), - {true, State2} - end, - - case State1 #vqstate.target_ram_count of - 0 -> {Reduce, BetaDeltaFun(State1)}; - _ -> case chunk_size(State1 #vqstate.ram_index_count, - permitted_ram_index_count(State1)) of - ?IO_BATCH_SIZE = S2 -> {true, BetaGammaFun(S2, State1)}; - _ -> {Reduce, State1} - end - end. - -limit_ram_acks(0, State) -> - {0, State}; -limit_ram_acks(Quota, State = #vqstate { pending_ack = PA, - ram_ack_index = RAI }) -> - case gb_trees:is_empty(RAI) of - true -> - {Quota, State}; - false -> - {SeqId, MsgId, RAI1} = gb_trees:take_largest(RAI), - MsgStatus = #msg_status { - msg_id = MsgId, %% ASSERTION - is_persistent = false, %% ASSERTION - msg_props = MsgProps } = dict:fetch(SeqId, PA), - {_, State1} = maybe_write_to_disk(true, false, MsgStatus, State), - PA1 = dict:store(SeqId, {false, MsgId, MsgProps}, PA), - limit_ram_acks(Quota - 1, - State1 #vqstate { pending_ack = PA1, - ram_ack_index = RAI1 }) - end. - - -reduce_memory_use(State) -> - {_, State1} = reduce_memory_use(fun push_alphas_to_betas/2, - fun limit_ram_index/2, - fun push_betas_to_deltas/1, - fun limit_ram_acks/2, - State), - State1. - -limit_ram_index(Quota, State = #vqstate { q2 = Q2, q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Q2a, {Quota1, IndexState1}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q2, {Quota, IndexState}), - %% TODO: we shouldn't be writing index entries for messages that - %% can never end up in delta due them residing in the only segment - %% held by q3. - {Q3a, {Quota2, IndexState2}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q3, {Quota1, IndexState1}), - State #vqstate { q2 = Q2a, q3 = Q3a, - index_state = IndexState2, - ram_index_count = RamIndexCount - (Quota - Quota2) }. - -limit_ram_index(_MapFoldFilterFun, Q, {0, IndexState}) -> - {Q, {0, IndexState}}; -limit_ram_index(MapFoldFilterFun, Q, {Quota, IndexState}) -> - MapFoldFilterFun( - fun erlang:'not'/1, - fun (MsgStatus, {0, _IndexStateN}) -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - stop; - (MsgStatus, {N, IndexStateN}) when N > 0 -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - {MsgStatus1, IndexStateN1} = - maybe_write_index_to_disk(true, MsgStatus, IndexStateN), - {true, m(MsgStatus1), {N-1, IndexStateN1}} - end, {Quota, IndexState}, Q). - -permitted_ram_index_count(#vqstate { len = 0 }) -> - infinity; -permitted_ram_index_count(#vqstate { len = Len, - q2 = Q2, - q3 = Q3, - delta = #delta { count = DeltaCount } }) -> - BetaLen = bpqueue:len(Q2) + bpqueue:len(Q3), - BetaLen - trunc(BetaLen * BetaLen / (Len - DeltaCount)). - -chunk_size(Current, Permitted) - when Permitted =:= infinity orelse Permitted >= Current -> - 0; -chunk_size(Current, Permitted) -> - lists:min([Current - Permitted, ?IO_BATCH_SIZE]). - -fetch_from_q3(State = #vqstate { - q1 = Q1, - q2 = Q2, - delta = #delta { count = DeltaCount }, - q3 = Q3, - q4 = Q4, - ram_index_count = RamIndexCount}) -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - {empty, State}; - {{value, IndexOnDisk, MsgStatus}, Q3a} -> - RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), - true = RamIndexCount1 >= 0, %% ASSERTION - State1 = State #vqstate { q3 = Q3a, - ram_index_count = RamIndexCount1 }, - State2 = - case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of - {true, true} -> - %% q3 is now empty, it wasn't before; delta is - %% still empty. So q2 must be empty, and we - %% know q4 is empty otherwise we wouldn't be - %% loading from q3. As such, we can just set - %% q4 to Q1. - true = bpqueue:is_empty(Q2), %% ASSERTION - true = queue:is_empty(Q4), %% ASSERTION - State1 #vqstate { q1 = queue:new(), - q4 = Q1 }; - {true, false} -> - maybe_deltas_to_betas(State1); - {false, _} -> - %% q3 still isn't empty, we've not touched - %% delta, so the invariants between q1, q2, - %% delta and q3 are maintained - State1 - end, - {loaded, {MsgStatus, State2}} - end. - -maybe_deltas_to_betas(State = #vqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> - State; -maybe_deltas_to_betas(State = #vqstate { - q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - transient_threshold = TransientThreshold }) -> - #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = DeltaSeqIdEnd } = Delta, - DeltaSeqId1 = - lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), - DeltaSeqIdEnd]), - {List, IndexState1} = - rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), - {Q3a, IndexState2} = - betas_from_index_entries(List, TransientThreshold, IndexState1), - State1 = State #vqstate { index_state = IndexState2 }, - case bpqueue:len(Q3a) of - 0 -> - %% we ignored every message in the segment due to it being - %% transient and below the threshold - maybe_deltas_to_betas( - State1 #vqstate { - delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); - Q3aLen -> - Q3b = bpqueue:join(Q3, Q3a), - case DeltaCount - Q3aLen of - 0 -> - %% delta is now empty, but it wasn't before, so - %% can now join q2 onto q3 - State1 #vqstate { q2 = bpqueue:new(), - delta = ?BLANK_DELTA, - q3 = bpqueue:join(Q3b, Q2) }; - N when N > 0 -> - Delta1 = #delta { start_seq_id = DeltaSeqId1, - count = N, - end_seq_id = DeltaSeqIdEnd }, - State1 #vqstate { delta = Delta1, - q3 = Q3b } - end - end. - -push_alphas_to_betas(Quota, State) -> - {Quota1, State1} = maybe_push_q1_to_betas(Quota, State), - {Quota2, State2} = maybe_push_q4_to_betas(Quota1, State1), - {Quota2, State2}. - -maybe_push_q1_to_betas(Quota, State = #vqstate { q1 = Q1 }) -> - maybe_push_alphas_to_betas( - fun queue:out/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q3 = Q3, delta = #delta { count = 0 } }) -> - State1 #vqstate { q1 = Q1a, - q3 = bpqueue:in(IndexOnDisk, MsgStatus, Q3) }; - (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q2 = Q2 }) -> - State1 #vqstate { q1 = Q1a, - q2 = bpqueue:in(IndexOnDisk, MsgStatus, Q2) } - end, Quota, Q1, State). - -maybe_push_q4_to_betas(Quota, State = #vqstate { q4 = Q4 }) -> - maybe_push_alphas_to_betas( - fun queue:out_r/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q4a, State1 = #vqstate { q3 = Q3 }) -> - State1 #vqstate { q3 = bpqueue:in_r(IndexOnDisk, MsgStatus, Q3), - q4 = Q4a } - end, Quota, Q4, State). - -maybe_push_alphas_to_betas(_Generator, _Consumer, Quota, _Q, - State = #vqstate { - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount }) - when Quota =:= 0 orelse - TargetRamCount =:= infinity orelse - TargetRamCount >= RamMsgCount -> - {Quota, State}; -maybe_push_alphas_to_betas(Generator, Consumer, Quota, Q, State) -> - case Generator(Q) of - {empty, _Q} -> - {Quota, State}; - {{value, MsgStatus}, Qa} -> - {MsgStatus1 = #msg_status { msg_on_disk = true, - index_on_disk = IndexOnDisk }, - State1 = #vqstate { ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }} = - maybe_write_to_disk(true, false, MsgStatus, State), - MsgStatus2 = m(MsgStatus1 #msg_status { msg = undefined }), - RamIndexCount1 = RamIndexCount + one_if(not IndexOnDisk), - State2 = State1 #vqstate { ram_msg_count = RamMsgCount - 1, - ram_index_count = RamIndexCount1 }, - maybe_push_alphas_to_betas(Generator, Consumer, Quota - 1, Qa, - Consumer(MsgStatus2, Qa, State2)) - end. - -push_betas_to_deltas(State = #vqstate { q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Delta2, Q2a, RamIndexCount2, IndexState2} = - push_betas_to_deltas(fun (Q2MinSeqId) -> Q2MinSeqId end, - fun bpqueue:out/1, Q2, - RamIndexCount, IndexState), - {Delta3, Q3a, RamIndexCount3, IndexState3} = - push_betas_to_deltas(fun rabbit_queue_index:next_segment_boundary/1, - fun bpqueue:out_r/1, Q3, - RamIndexCount2, IndexState2), - Delta4 = combine_deltas(Delta3, combine_deltas(Delta, Delta2)), - State #vqstate { q2 = Q2a, - delta = Delta4, - q3 = Q3a, - index_state = IndexState3, - ram_index_count = RamIndexCount3 }. - -push_betas_to_deltas(LimitFun, Generator, Q, RamIndexCount, IndexState) -> - case bpqueue:out(Q) of - {empty, _Q} -> - {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk1, #msg_status { seq_id = MinSeqId }}, _Qa} -> - {{value, _IndexOnDisk2, #msg_status { seq_id = MaxSeqId }}, _Qb} = - bpqueue:out_r(Q), - Limit = LimitFun(MinSeqId), - case MaxSeqId < Limit of - true -> {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - false -> {Len, Qc, RamIndexCount1, IndexState1} = - push_betas_to_deltas(Generator, Limit, Q, 0, - RamIndexCount, IndexState), - {#delta { start_seq_id = Limit, - count = Len, - end_seq_id = MaxSeqId + 1 }, - Qc, RamIndexCount1, IndexState1} - end - end. - -push_betas_to_deltas(Generator, Limit, Q, Count, RamIndexCount, IndexState) -> - case Generator(Q) of - {empty, _Q} -> - {Count, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk, #msg_status { seq_id = SeqId }}, _Qa} - when SeqId < Limit -> - {Count, Q, RamIndexCount, IndexState}; - {{value, IndexOnDisk, MsgStatus}, Qa} -> - {RamIndexCount1, IndexState1} = - case IndexOnDisk of - true -> {RamIndexCount, IndexState}; - false -> {#msg_status { index_on_disk = true }, - IndexState2} = - maybe_write_index_to_disk(true, MsgStatus, - IndexState), - {RamIndexCount - 1, IndexState2} - end, - push_betas_to_deltas( - Generator, Limit, Qa, Count + 1, RamIndexCount1, IndexState1) - end. - -%%---------------------------------------------------------------------------- -%% Upgrading -%%---------------------------------------------------------------------------- - -multiple_routing_keys() -> - transform_storage( - fun ({basic_message, ExchangeName, Routing_Key, Content, - MsgId, Persistent}) -> - {ok, {basic_message, ExchangeName, [Routing_Key], Content, - MsgId, Persistent}}; - (_) -> {error, corrupt_message} - end), - ok. - - -%% Assumes message store is not running -transform_storage(TransformFun) -> - transform_store(?PERSISTENT_MSG_STORE, TransformFun), - transform_store(?TRANSIENT_MSG_STORE, TransformFun). - -transform_store(Store, TransformFun) -> - rabbit_msg_store:force_recovery(rabbit_mnesia:dir(), Store), - rabbit_msg_store:transform_dir(rabbit_mnesia:dir(), Store, TransformFun). diff --git a/src/rabbit_vhost.erl b/src/rabbit_vhost.erl deleted file mode 100644 index 24c130ed..00000000 --- a/src/rabbit_vhost.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_vhost). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --export([add/1, delete/1, exists/1, list/0, with/2]). - --ifdef(use_specs). - --spec(add/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(delete/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(exists/1 :: (rabbit_types:vhost()) -> boolean()). --spec(list/0 :: () -> [rabbit_types:vhost()]). --spec(with/2 :: (rabbit_types:vhost(), rabbit_misc:thunk(A)) -> A). - --endif. - -%%---------------------------------------------------------------------------- - -add(VHostPath) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_vhost, VHostPath}) of - [] -> ok = mnesia:write(rabbit_vhost, - #vhost{virtual_host = VHostPath}, - write); - [_] -> mnesia:abort({vhost_already_exists, VHostPath}) - end - end, - fun (ok, true) -> - ok; - (ok, false) -> - [rabbit_exchange:declare( - rabbit_misc:r(VHostPath, exchange, Name), - Type, true, false, false, []) || - {Name,Type} <- - [{<<"">>, direct}, - {<<"amq.direct">>, direct}, - {<<"amq.topic">>, topic}, - {<<"amq.match">>, headers}, %% per 0-9-1 pdf - {<<"amq.headers">>, headers}, %% per 0-9-1 xml - {<<"amq.fanout">>, fanout}]], - ok - end), - rabbit_log:info("Added vhost ~p~n", [VHostPath]), - R. - -delete(VHostPath) -> - %% FIXME: We are forced to delete the queues and exchanges outside - %% the TX below. Queue deletion involves sending messages to the queue - %% process, which in turn results in further mnesia actions and - %% eventually the termination of that process. Exchange deletion causes - %% notifications which must be sent outside the TX - [{ok,_} = rabbit_amqqueue:delete(Q, false, false) || - Q <- rabbit_amqqueue:list(VHostPath)], - [ok = rabbit_exchange:delete(Name, false) || - #exchange{name = Name} <- rabbit_exchange:list(VHostPath)], - R = rabbit_misc:execute_mnesia_transaction( - with(VHostPath, fun () -> - ok = internal_delete(VHostPath) - end)), - rabbit_log:info("Deleted vhost ~p~n", [VHostPath]), - R. - -internal_delete(VHostPath) -> - lists:foreach( - fun ({Username, _, _, _}) -> - ok = rabbit_auth_backend_internal:clear_permissions(Username, - VHostPath) - end, - rabbit_auth_backend_internal:list_vhost_permissions(VHostPath)), - ok = mnesia:delete({rabbit_vhost, VHostPath}), - ok. - -exists(VHostPath) -> - mnesia:dirty_read({rabbit_vhost, VHostPath}) /= []. - -list() -> - mnesia:dirty_all_keys(rabbit_vhost). - -with(VHostPath, Thunk) -> - fun () -> - case mnesia:read({rabbit_vhost, VHostPath}) of - [] -> - mnesia:abort({no_such_vhost, VHostPath}); - [_V] -> - Thunk() - end - end. diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl deleted file mode 100644 index ac3434d2..00000000 --- a/src/rabbit_writer.erl +++ /dev/null @@ -1,249 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_writer). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([start/5, start_link/5, mainloop/2, mainloop1/2]). --export([send_command/2, send_command/3, - send_command_sync/2, send_command_sync/3, - send_command_and_notify/4, send_command_and_notify/5]). --export([internal_send_command/4, internal_send_command/6]). - --record(wstate, {sock, channel, frame_max, protocol}). - --define(HIBERNATE_AFTER, 5000). - -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(start_link/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(send_command/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_sync/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command_sync/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_and_notify/4 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record()) - -> 'ok'). --spec(send_command_and_notify/5 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record(), - rabbit_types:content()) - -> 'ok'). --spec(internal_send_command/4 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:protocol()) - -> 'ok'). --spec(internal_send_command/6 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> 'ok'). - --endif. - -%%--------------------------------------------------------------------------- - -start(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -start_link(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn_link(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -mainloop(ReaderPid, State) -> - try - mainloop1(ReaderPid, State) - catch - exit:Error -> ReaderPid ! {channel_exit, #wstate.channel, Error} - end, - done. - -mainloop1(ReaderPid, State) -> - receive - Message -> ?MODULE:mainloop1(ReaderPid, handle_message(Message, State)) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, mainloop, [ReaderPid, State]) - end. - -handle_message({send_command, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - State; -handle_message({send_command, MethodRecord, Content}, State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord}}, State) -> - ok = internal_send_command_async(MethodRecord, State), - gen_server:reply(From, ok), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord, Content}}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - gen_server:reply(From, ok), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord, Content}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({inet_reply, _, ok}, State) -> - State; -handle_message({inet_reply, _, Status}, _State) -> - exit({writer, send_failed, Status}); -handle_message(Message, _State) -> - exit({writer, message_not_understood, Message}). - -%%--------------------------------------------------------------------------- - -send_command(W, MethodRecord) -> - W ! {send_command, MethodRecord}, - ok. - -send_command(W, MethodRecord, Content) -> - W ! {send_command, MethodRecord, Content}, - ok. - -send_command_sync(W, MethodRecord) -> - call(W, {send_command_sync, MethodRecord}). - -send_command_sync(W, MethodRecord, Content) -> - call(W, {send_command_sync, MethodRecord, Content}). - -send_command_and_notify(W, Q, ChPid, MethodRecord) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord}, - ok. - -send_command_and_notify(W, Q, ChPid, MethodRecord, Content) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord, Content}, - ok. - -%%--------------------------------------------------------------------------- - -call(Pid, Msg) -> - {ok, Res} = gen:call(Pid, '$gen_call', Msg, infinity), - Res. - -%%--------------------------------------------------------------------------- - -assemble_frame(Channel, MethodRecord, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, none), - rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol). - -assemble_frames(Channel, MethodRecord, Content, FrameMax, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, Content), - MethodName = rabbit_misc:method_record_type(MethodRecord), - true = Protocol:method_has_content(MethodName), % assertion - MethodFrame = rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol), - ContentFrames = rabbit_binary_generator:build_simple_content_frames( - Channel, Content, FrameMax, Protocol), - [MethodFrame | ContentFrames]. - -%% We optimise delivery of small messages. Content-bearing methods -%% require at least three frames. Small messages always fit into -%% that. We hand their frames to the Erlang network functions in one -%% go, which may lead to somewhat more efficient processing in the -%% runtime and a greater chance of coalescing into fewer TCP packets. -%% -%% By contrast, for larger messages, split across many frames, we want -%% to allow interleaving of frames on different channels. Hence we -%% hand them to the Erlang network functions one frame at a time. -send_frames(Fun, Sock, Frames) when length(Frames) =< 3 -> - Fun(Sock, Frames); -send_frames(Fun, Sock, Frames) -> - lists:foldl(fun (Frame, ok) -> Fun(Sock, Frame); - (_Frame, Other) -> Other - end, ok, Frames). - -tcp_send(Sock, Data) -> - rabbit_misc:throw_on_error(inet_error, - fun () -> rabbit_net:send(Sock, Data) end). - -internal_send_command(Sock, Channel, MethodRecord, Protocol) -> - ok = tcp_send(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command(Sock, Channel, MethodRecord, Content, FrameMax, - Protocol) -> - ok = send_frames(fun tcp_send/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -%% gen_tcp:send/2 does a selective receive of {inet_reply, Sock, -%% Status} to obtain the result. That is bad when it is called from -%% the writer since it requires scanning of the writers possibly quite -%% large message queue. -%% -%% So instead we lift the code from prim_inet:send/2, which is what -%% gen_tcp:send/2 calls, do the first half here and then just process -%% the result code in handle_message/2 as and when it arrives. -%% -%% This means we may end up happily sending data down a closed/broken -%% socket, but that's ok since a) data in the buffers will be lost in -%% any case (so qualitatively we are no worse off than if we used -%% gen_tcp:send/2), and b) we do detect the changed socket status -%% eventually, i.e. when we get round to handling the result code. -%% -%% Also note that the port has bounded buffers and port_command blocks -%% when these are full. So the fact that we process the result -%% asynchronously does not impact flow control. -internal_send_command_async(MethodRecord, - #wstate{sock = Sock, - channel = Channel, - protocol = Protocol}) -> - ok = port_cmd(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command_async(MethodRecord, Content, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}) -> - ok = send_frames(fun port_cmd/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -port_cmd(Sock, Data) -> - true = try rabbit_net:port_command(Sock, Data) - catch error:Error -> exit({writer, send_failed, Error}) - end, - ok. diff --git a/src/supervisor2.erl b/src/supervisor2.erl deleted file mode 100644 index 1a240856..00000000 --- a/src/supervisor2.erl +++ /dev/null @@ -1,1015 +0,0 @@ -%% This file is a copy of supervisor.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is supervisor2 -%% -%% 2) there is a new strategy called -%% simple_one_for_one_terminate. This is exactly the same as for -%% simple_one_for_one, except that children *are* explicitly -%% terminated as per the shutdown component of the child_spec. -%% -%% 3) child specifications can contain, as the restart type, a tuple -%% {permanent, Delay} | {transient, Delay} where Delay >= 0. The -%% delay, in seconds, indicates what should happen if a child, upon -%% being restarted, exceeds the MaxT and MaxR parameters. Thus, if -%% a child exits, it is restarted as normal. If it exits -%% sufficiently quickly and often to exceed the boundaries set by -%% the MaxT and MaxR parameters, and a Delay is specified, then -%% rather than stopping the supervisor, the supervisor instead -%% continues and tries to start up the child again, Delay seconds -%% later. -%% -%% Note that you can never restart more frequently than the MaxT -%% and MaxR parameters allow: i.e. you must wait until *both* the -%% Delay has passed *and* the MaxT and MaxR parameters allow the -%% child to be restarted. -%% -%% Also note that the Delay is a *minimum*. There is no guarantee -%% that the child will be restarted within that time, especially if -%% other processes are dying and being restarted at the same time - -%% essentially we have to wait for the delay to have passed and for -%% the MaxT and MaxR parameters to permit the child to be -%% restarted. This may require waiting for longer than Delay. -%% -%% 4) Added an 'intrinsic' restart type. Like the transient type, this -%% type means the child should only be restarted if the child exits -%% abnormally. Unlike the transient type, if the child exits -%% normally, the supervisor itself also exits normally. If the -%% child is a supervisor and it exits normally (i.e. with reason of -%% 'shutdown') then the child's parent also exits normally. -%% -%% All modifications are (C) 2010-2011 VMware, Inc. -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(supervisor2). - --behaviour(gen_server). - -%% External exports --export([start_link/2,start_link/3, - start_child/2, restart_child/2, - delete_child/2, terminate_child/2, - which_children/1, find_child/2, - check_childspecs/1]). - --export([behaviour_info/1]). - -%% Internal exports --export([init/1, handle_call/3, handle_info/2, terminate/2, code_change/3]). --export([handle_cast/2]). --export([delayed_restart/2]). - --define(DICT, dict). - --record(state, {name, - strategy, - children = [], - dynamics = ?DICT:new(), - intensity, - period, - restarts = [], - module, - args}). - --record(child, {pid = undefined, % pid is undefined when child is not running - name, - mfa, - restart_type, - shutdown, - child_type, - modules = []}). - --define(is_simple(State), State#state.strategy =:= simple_one_for_one orelse - State#state.strategy =:= simple_one_for_one_terminate). --define(is_terminate_simple(State), - State#state.strategy =:= simple_one_for_one_terminate). - -behaviour_info(callbacks) -> - [{init,1}]; -behaviour_info(_Other) -> - undefined. - -%%% --------------------------------------------------- -%%% This is a general process supervisor built upon gen_server.erl. -%%% Servers/processes should/could also be built using gen_server.erl. -%%% SupName = {local, atom()} | {global, atom()}. -%%% --------------------------------------------------- -start_link(Mod, Args) -> - gen_server:start_link(?MODULE, {self, Mod, Args}, []). - -start_link(SupName, Mod, Args) -> - gen_server:start_link(SupName, ?MODULE, {SupName, Mod, Args}, []). - -%%% --------------------------------------------------- -%%% Interface functions. -%%% --------------------------------------------------- -start_child(Supervisor, ChildSpec) -> - call(Supervisor, {start_child, ChildSpec}). - -restart_child(Supervisor, Name) -> - call(Supervisor, {restart_child, Name}). - -delete_child(Supervisor, Name) -> - call(Supervisor, {delete_child, Name}). - -%%----------------------------------------------------------------- -%% Func: terminate_child/2 -%% Returns: ok | {error, Reason} -%% Note that the child is *always* terminated in some -%% way (maybe killed). -%%----------------------------------------------------------------- -terminate_child(Supervisor, Name) -> - call(Supervisor, {terminate_child, Name}). - -which_children(Supervisor) -> - call(Supervisor, which_children). - -find_child(Supervisor, Name) -> - [Pid || {Name1, Pid, _Type, _Modules} <- which_children(Supervisor), - Name1 =:= Name]. - -call(Supervisor, Req) -> - gen_server:call(Supervisor, Req, infinity). - -check_childspecs(ChildSpecs) when is_list(ChildSpecs) -> - case check_startspec(ChildSpecs) of - {ok, _} -> ok; - Error -> {error, Error} - end; -check_childspecs(X) -> {error, {badarg, X}}. - -delayed_restart(Supervisor, RestartDetails) -> - gen_server:cast(Supervisor, {delayed_restart, RestartDetails}). - -%%% --------------------------------------------------- -%%% -%%% Initialize the supervisor. -%%% -%%% --------------------------------------------------- -init({SupName, Mod, Args}) -> - process_flag(trap_exit, true), - case Mod:init(Args) of - {ok, {SupFlags, StartSpec}} -> - case init_state(SupName, SupFlags, Mod, Args) of - {ok, State} when ?is_simple(State) -> - init_dynamic(State, StartSpec); - {ok, State} -> - init_children(State, StartSpec); - Error -> - {stop, {supervisor_data, Error}} - end; - ignore -> - ignore; - Error -> - {stop, {bad_return, {Mod, init, Error}}} - end. - -init_children(State, StartSpec) -> - SupName = State#state.name, - case check_startspec(StartSpec) of - {ok, Children} -> - case start_children(Children, SupName) of - {ok, NChildren} -> - {ok, State#state{children = NChildren}}; - {error, NChildren} -> - terminate_children(NChildren, SupName), - {stop, shutdown} - end; - Error -> - {stop, {start_spec, Error}} - end. - -init_dynamic(State, [StartSpec]) -> - case check_startspec([StartSpec]) of - {ok, Children} -> - {ok, State#state{children = Children}}; - Error -> - {stop, {start_spec, Error}} - end; -init_dynamic(_State, StartSpec) -> - {stop, {bad_start_spec, StartSpec}}. - -%%----------------------------------------------------------------- -%% Func: start_children/2 -%% Args: Children = [#child] in start order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Purpose: Start all children. The new list contains #child's -%% with pids. -%% Returns: {ok, NChildren} | {error, NChildren} -%% NChildren = [#child] in termination order (reversed -%% start order) -%%----------------------------------------------------------------- -start_children(Children, SupName) -> start_children(Children, [], SupName). - -start_children([Child|Chs], NChildren, SupName) -> - case do_start_child(SupName, Child) of - {ok, Pid} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {ok, Pid, _Extra} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {error, Reason} -> - report_error(start_error, Reason, Child, SupName), - {error, lists:reverse(Chs) ++ [Child | NChildren]} - end; -start_children([], NChildren, _SupName) -> - {ok, NChildren}. - -do_start_child(SupName, Child) -> - #child{mfa = {M, F, A}} = Child, - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, What} -> {error, What}; - What -> {error, What} - end. - -do_start_child_i(M, F, A) -> - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, Error} -> - {error, Error}; - What -> - {error, What} - end. - - -%%% --------------------------------------------------- -%%% -%%% Callback functions. -%%% -%%% --------------------------------------------------- -handle_call({start_child, EArgs}, _From, State) when ?is_simple(State) -> - #child{mfa = {M, F, A}} = hd(State#state.children), - Args = A ++ EArgs, - case do_start_child_i(M, F, Args) of - {ok, Pid} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid, Extra}, NState}; - What -> - {reply, What, State} - end; - -%%% The requests terminate_child, delete_child and restart_child are -%%% invalid for simple_one_for_one and simple_one_for_one_terminate -%%% supervisors. -handle_call({_Req, _Data}, _From, State) when ?is_simple(State) -> - {reply, {error, State#state.strategy}, State}; - -handle_call({start_child, ChildSpec}, _From, State) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - {Resp, NState} = handle_start_child(Child, State), - {reply, Resp, NState}; - What -> - {reply, {error, What}, State} - end; - -handle_call({restart_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid, Extra}, NState}; - Error -> - {reply, Error, State} - end; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({delete_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - NState = remove_child(Child, State), - {reply, ok, NState}; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({terminate_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} -> - NChild = do_terminate(Child, State#state.name), - {reply, ok, replace_child(NChild, State)}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call(which_children, _From, State) when ?is_simple(State) -> - [#child{child_type = CT, modules = Mods}] = State#state.children, - Reply = lists:map(fun ({Pid, _}) -> {undefined, Pid, CT, Mods} end, - ?DICT:to_list(State#state.dynamics)), - {reply, Reply, State}; - -handle_call(which_children, _From, State) -> - Resp = - lists:map(fun (#child{pid = Pid, name = Name, - child_type = ChildType, modules = Mods}) -> - {Name, Pid, ChildType, Mods} - end, - State#state.children), - {reply, Resp, State}. - - -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) - when ?is_simple(State) -> - {ok, NState} = do_restart(RestartType, Reason, Child, State), - {noreply, NState}; -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) -> - case get_child(Child#child.name, State) of - {value, Child1} -> - {ok, NState} = do_restart(RestartType, Reason, Child1, State), - {noreply, NState}; - _ -> - {noreply, State} - end; - -%%% Hopefully cause a function-clause as there is no API function -%%% that utilizes cast. -handle_cast(null, State) -> - error_logger:error_msg("ERROR: Supervisor received cast-message 'null'~n", - []), - - {noreply, State}. - -%% -%% Take care of terminated children. -%% -handle_info({'EXIT', Pid, Reason}, State) -> - case restart_child(Pid, Reason, State) of - {ok, State1} -> - {noreply, State1}; - {shutdown, State1} -> - {stop, shutdown, State1} - end; - -handle_info(Msg, State) -> - error_logger:error_msg("Supervisor received unexpected message: ~p~n", - [Msg]), - {noreply, State}. -%% -%% Terminate this server. -%% -terminate(_Reason, State) when ?is_terminate_simple(State) -> - terminate_simple_children( - hd(State#state.children), State#state.dynamics, State#state.name), - ok; -terminate(_Reason, State) -> - terminate_children(State#state.children, State#state.name), - ok. - -%% -%% Change code for the supervisor. -%% Call the new call-back module and fetch the new start specification. -%% Combine the new spec. with the old. If the new start spec. is -%% not valid the code change will not succeed. -%% Use the old Args as argument to Module:init/1. -%% NOTE: This requires that the init function of the call-back module -%% does not have any side effects. -%% -code_change(_, State, _) -> - case (State#state.module):init(State#state.args) of - {ok, {SupFlags, StartSpec}} -> - case catch check_flags(SupFlags) of - ok -> - {Strategy, MaxIntensity, Period} = SupFlags, - update_childspec(State#state{strategy = Strategy, - intensity = MaxIntensity, - period = Period}, - StartSpec); - Error -> - {error, Error} - end; - ignore -> - {ok, State}; - Error -> - Error - end. - -check_flags({Strategy, MaxIntensity, Period}) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - ok; -check_flags(What) -> - {bad_flags, What}. - -update_childspec(State, StartSpec) when ?is_simple(State) -> - case check_startspec(StartSpec) of - {ok, [Child]} -> - {ok, State#state{children = [Child]}}; - Error -> - {error, Error} - end; - -update_childspec(State, StartSpec) -> - case check_startspec(StartSpec) of - {ok, Children} -> - OldC = State#state.children, % In reverse start order ! - NewC = update_childspec1(OldC, Children, []), - {ok, State#state{children = NewC}}; - Error -> - {error, Error} - end. - -update_childspec1([Child|OldC], Children, KeepOld) -> - case update_chsp(Child, Children) of - {ok,NewChildren} -> - update_childspec1(OldC, NewChildren, KeepOld); - false -> - update_childspec1(OldC, Children, [Child|KeepOld]) - end; -update_childspec1([], Children, KeepOld) -> - % Return them in (keeped) reverse start order. - lists:reverse(Children ++ KeepOld). - -update_chsp(OldCh, Children) -> - case lists:map(fun (Ch) when OldCh#child.name =:= Ch#child.name -> - Ch#child{pid = OldCh#child.pid}; - (Ch) -> - Ch - end, - Children) of - Children -> - false; % OldCh not found in new spec. - NewC -> - {ok, NewC} - end. - -%%% --------------------------------------------------- -%%% Start a new child. -%%% --------------------------------------------------- - -handle_start_child(Child, State) -> - case get_child(Child#child.name, State) of - false -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - Children = State#state.children, - {{ok, Pid}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {ok, Pid, Extra} -> - Children = State#state.children, - {{ok, Pid, Extra}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {error, What} -> - {{error, {What, Child}}, State} - end; - {value, OldChild} when OldChild#child.pid =/= undefined -> - {{error, {already_started, OldChild#child.pid}}, State}; - {value, _OldChild} -> - {{error, already_present}, State} - end. - -%%% --------------------------------------------------- -%%% Restart. A process has terminated. -%%% Returns: {ok, #state} | {shutdown, #state} -%%% --------------------------------------------------- - -restart_child(Pid, Reason, State) when ?is_simple(State) -> - case ?DICT:find(Pid, State#state.dynamics) of - {ok, Args} -> - [Child] = State#state.children, - RestartType = Child#child.restart_type, - {M, F, _} = Child#child.mfa, - NChild = Child#child{pid = Pid, mfa = {M, F, Args}}, - do_restart(RestartType, Reason, NChild, State); - error -> - {ok, State} - end; -restart_child(Pid, Reason, State) -> - Children = State#state.children, - case lists:keysearch(Pid, #child.pid, Children) of - {value, Child} -> - RestartType = Child#child.restart_type, - do_restart(RestartType, Reason, Child, State); - _ -> - {ok, State} - end. - -do_restart({RestartType, Delay}, Reason, Child, State) -> - case restart1(Child, State) of - {ok, NState} -> - {ok, NState}; - {terminate, NState} -> - {ok, _TRef} = timer:apply_after( - trunc(Delay*1000), ?MODULE, delayed_restart, - [self(), {{RestartType, Delay}, Reason, Child}]), - {ok, state_del_child(Child, NState)} - end; -do_restart(permanent, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(intrinsic, normal, Child, State) -> - {shutdown, state_del_child(Child, State)}; -do_restart(intrinsic, shutdown, Child = #child{child_type = supervisor}, - State) -> - {shutdown, state_del_child(Child, State)}; -do_restart(_, normal, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(_, shutdown, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(Type, Reason, Child, State) when Type =:= transient orelse - Type =:= intrinsic -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(temporary, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - NState = state_del_child(Child, State), - {ok, NState}. - -restart(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart/2); - {terminate, NState} -> - report_error(shutdown, reached_max_restart_intensity, - Child, State#state.name), - {shutdown, state_del_child(Child, NState)} - end. - -restart1(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart1/2); - {terminate, _NState} -> - %% we've reached the max restart intensity, but the - %% add_restart will have added to the restarts - %% field. Given we don't want to die here, we need to go - %% back to the old restarts field otherwise we'll never - %% attempt to restart later. - {terminate, State} - end. - -restart(Strategy, Child, State, Restart) - when Strategy =:= simple_one_for_one orelse - Strategy =:= simple_one_for_one_terminate -> - #child{mfa = {M, F, A}} = Child, - Dynamics = ?DICT:erase(Child#child.pid, State#state.dynamics), - case do_start_child_i(M, F, A) of - {ok, Pid} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {ok, Pid, _Extra} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {error, Error} -> - report_error(start_error, Error, Child, State#state.name), - Restart(Child, State) - end; -restart(one_for_one, Child, State, Restart) -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {ok, Pid, _Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {error, Reason} -> - report_error(start_error, Reason, Child, State#state.name), - Restart(Child, State) - end; -restart(rest_for_one, Child, State, Restart) -> - {ChAfter, ChBefore} = split_child(Child#child.pid, State#state.children), - ChAfter2 = terminate_children(ChAfter, State#state.name), - case start_children(ChAfter2, State#state.name) of - {ok, ChAfter3} -> - {ok, State#state{children = ChAfter3 ++ ChBefore}}; - {error, ChAfter3} -> - Restart(Child, State#state{children = ChAfter3 ++ ChBefore}) - end; -restart(one_for_all, Child, State, Restart) -> - Children1 = del_child(Child#child.pid, State#state.children), - Children2 = terminate_children(Children1, State#state.name), - case start_children(Children2, State#state.name) of - {ok, NChs} -> - {ok, State#state{children = NChs}}; - {error, NChs} -> - Restart(Child, State#state{children = NChs}) - end. - -%%----------------------------------------------------------------- -%% Func: terminate_children/2 -%% Args: Children = [#child] in termination order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Returns: NChildren = [#child] in -%% startup order (reversed termination order) -%%----------------------------------------------------------------- -terminate_children(Children, SupName) -> - terminate_children(Children, SupName, []). - -terminate_children([Child | Children], SupName, Res) -> - NChild = do_terminate(Child, SupName), - terminate_children(Children, SupName, [NChild | Res]); -terminate_children([], _SupName, Res) -> - Res. - -terminate_simple_children(Child, Dynamics, SupName) -> - dict:fold(fun (Pid, _Args, _Any) -> - do_terminate(Child#child{pid = Pid}, SupName) - end, ok, Dynamics), - ok. - -do_terminate(Child, SupName) when Child#child.pid =/= undefined -> - ReportError = fun (Reason) -> - report_error(shutdown_error, Reason, Child, SupName) - end, - case shutdown(Child#child.pid, Child#child.shutdown) of - ok -> - ok; - {error, normal} -> - case Child#child.restart_type of - permanent -> ReportError(normal); - {permanent, _Delay} -> ReportError(normal); - _ -> ok - end; - {error, OtherReason} -> - ReportError(OtherReason) - end, - Child#child{pid = undefined}; -do_terminate(Child, _SupName) -> - Child. - -%%----------------------------------------------------------------- -%% Shutdowns a child. We must check the EXIT value -%% of the child, because it might have died with another reason than -%% the wanted. In that case we want to report the error. We put a -%% monitor on the child an check for the 'DOWN' message instead of -%% checking for the 'EXIT' message, because if we check the 'EXIT' -%% message a "naughty" child, who does unlink(Sup), could hang the -%% supervisor. -%% Returns: ok | {error, OtherReason} (this should be reported) -%%----------------------------------------------------------------- -shutdown(Pid, brutal_kill) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, kill), - receive - {'DOWN', _MRef, process, Pid, killed} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end; - {error, Reason} -> - {error, Reason} - end; - -shutdown(Pid, Time) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, shutdown), %% Try to shutdown gracefully - receive - {'DOWN', _MRef, process, Pid, shutdown} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - after Time -> - exit(Pid, kill), %% Force termination. - receive - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end - end; - {error, Reason} -> - {error, Reason} - end. - -%% Help function to shutdown/2 switches from link to monitor approach -monitor_child(Pid) -> - - %% Do the monitor operation first so that if the child dies - %% before the monitoring is done causing a 'DOWN'-message with - %% reason noproc, we will get the real reason in the 'EXIT'-message - %% unless a naughty child has already done unlink... - erlang:monitor(process, Pid), - unlink(Pid), - - receive - %% If the child dies before the unlik we must empty - %% the mail-box of the 'EXIT'-message and the 'DOWN'-message. - {'EXIT', Pid, Reason} -> - receive - {'DOWN', _, process, Pid, _} -> - {error, Reason} - end - after 0 -> - %% If a naughty child did unlink and the child dies before - %% monitor the result will be that shutdown/2 receives a - %% 'DOWN'-message with reason noproc. - %% If the child should die after the unlink there - %% will be a 'DOWN'-message with a correct reason - %% that will be handled in shutdown/2. - ok - end. - - -%%----------------------------------------------------------------- -%% Child/State manipulating functions. -%%----------------------------------------------------------------- -state_del_child(#child{pid = Pid}, State) when ?is_simple(State) -> - NDynamics = ?DICT:erase(Pid, State#state.dynamics), - State#state{dynamics = NDynamics}; -state_del_child(Child, State) -> - NChildren = del_child(Child#child.name, State#state.children), - State#state{children = NChildren}. - -del_child(Name, [Ch|Chs]) when Ch#child.name =:= Name -> - [Ch#child{pid = undefined} | Chs]; -del_child(Pid, [Ch|Chs]) when Ch#child.pid =:= Pid -> - [Ch#child{pid = undefined} | Chs]; -del_child(Name, [Ch|Chs]) -> - [Ch|del_child(Name, Chs)]; -del_child(_, []) -> - []. - -%% Chs = [S4, S3, Ch, S1, S0] -%% Ret: {[S4, S3, Ch], [S1, S0]} -split_child(Name, Chs) -> - split_child(Name, Chs, []). - -split_child(Name, [Ch|Chs], After) when Ch#child.name =:= Name -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Pid, [Ch|Chs], After) when Ch#child.pid =:= Pid -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Name, [Ch|Chs], After) -> - split_child(Name, Chs, [Ch | After]); -split_child(_, [], After) -> - {lists:reverse(After), []}. - -get_child(Name, State) -> - lists:keysearch(Name, #child.name, State#state.children). -replace_child(Child, State) -> - Chs = do_replace_child(Child, State#state.children), - State#state{children = Chs}. - -do_replace_child(Child, [Ch|Chs]) when Ch#child.name =:= Child#child.name -> - [Child | Chs]; -do_replace_child(Child, [Ch|Chs]) -> - [Ch|do_replace_child(Child, Chs)]. - -remove_child(Child, State) -> - Chs = lists:keydelete(Child#child.name, #child.name, State#state.children), - State#state{children = Chs}. - -%%----------------------------------------------------------------- -%% Func: init_state/4 -%% Args: SupName = {local, atom()} | {global, atom()} | self -%% Type = {Strategy, MaxIntensity, Period} -%% Strategy = one_for_one | one_for_all | simple_one_for_one | -%% rest_for_one -%% MaxIntensity = integer() -%% Period = integer() -%% Mod :== atom() -%% Arsg :== term() -%% Purpose: Check that Type is of correct type (!) -%% Returns: {ok, #state} | Error -%%----------------------------------------------------------------- -init_state(SupName, Type, Mod, Args) -> - case catch init_state1(SupName, Type, Mod, Args) of - {ok, State} -> - {ok, State}; - Error -> - Error - end. - -init_state1(SupName, {Strategy, MaxIntensity, Period}, Mod, Args) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - {ok, #state{name = supname(SupName,Mod), - strategy = Strategy, - intensity = MaxIntensity, - period = Period, - module = Mod, - args = Args}}; -init_state1(_SupName, Type, _, _) -> - {invalid_type, Type}. - -validStrategy(simple_one_for_one_terminate) -> true; -validStrategy(simple_one_for_one) -> true; -validStrategy(one_for_one) -> true; -validStrategy(one_for_all) -> true; -validStrategy(rest_for_one) -> true; -validStrategy(What) -> throw({invalid_strategy, What}). - -validIntensity(Max) when is_integer(Max), - Max >= 0 -> true; -validIntensity(What) -> throw({invalid_intensity, What}). - -validPeriod(Period) when is_integer(Period), - Period > 0 -> true; -validPeriod(What) -> throw({invalid_period, What}). - -supname(self,Mod) -> {self(),Mod}; -supname(N,_) -> N. - -%%% ------------------------------------------------------ -%%% Check that the children start specification is valid. -%%% Shall be a six (6) tuple -%%% {Name, Func, RestartType, Shutdown, ChildType, Modules} -%%% where Name is an atom -%%% Func is {Mod, Fun, Args} == {atom, atom, list} -%%% RestartType is permanent | temporary | transient | -%%% intrinsic | {permanent, Delay} | -%%% {transient, Delay} where Delay >= 0 -%%% Shutdown = integer() | infinity | brutal_kill -%%% ChildType = supervisor | worker -%%% Modules = [atom()] | dynamic -%%% Returns: {ok, [#child]} | Error -%%% ------------------------------------------------------ - -check_startspec(Children) -> check_startspec(Children, []). - -check_startspec([ChildSpec|T], Res) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - case lists:keymember(Child#child.name, #child.name, Res) of - true -> {duplicate_child_name, Child#child.name}; - false -> check_startspec(T, [Child | Res]) - end; - Error -> Error - end; -check_startspec([], Res) -> - {ok, lists:reverse(Res)}. - -check_childspec({Name, Func, RestartType, Shutdown, ChildType, Mods}) -> - catch check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods); -check_childspec(X) -> {invalid_child_spec, X}. - -check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods) -> - validName(Name), - validFunc(Func), - validRestartType(RestartType), - validChildType(ChildType), - validShutdown(Shutdown, ChildType), - validMods(Mods), - {ok, #child{name = Name, mfa = Func, restart_type = RestartType, - shutdown = Shutdown, child_type = ChildType, modules = Mods}}. - -validChildType(supervisor) -> true; -validChildType(worker) -> true; -validChildType(What) -> throw({invalid_child_type, What}). - -validName(_Name) -> true. - -validFunc({M, F, A}) when is_atom(M), - is_atom(F), - is_list(A) -> true; -validFunc(Func) -> throw({invalid_mfa, Func}). - -validRestartType(permanent) -> true; -validRestartType(temporary) -> true; -validRestartType(transient) -> true; -validRestartType(intrinsic) -> true; -validRestartType({permanent, Delay}) -> validDelay(Delay); -validRestartType({transient, Delay}) -> validDelay(Delay); -validRestartType(RestartType) -> throw({invalid_restart_type, - RestartType}). - -validDelay(Delay) when is_number(Delay), - Delay >= 0 -> true; -validDelay(What) -> throw({invalid_delay, What}). - -validShutdown(Shutdown, _) - when is_integer(Shutdown), Shutdown > 0 -> true; -validShutdown(infinity, supervisor) -> true; -validShutdown(brutal_kill, _) -> true; -validShutdown(Shutdown, _) -> throw({invalid_shutdown, Shutdown}). - -validMods(dynamic) -> true; -validMods(Mods) when is_list(Mods) -> - lists:foreach(fun (Mod) -> - if - is_atom(Mod) -> ok; - true -> throw({invalid_module, Mod}) - end - end, - Mods); -validMods(Mods) -> throw({invalid_modules, Mods}). - -%%% ------------------------------------------------------ -%%% Add a new restart and calculate if the max restart -%%% intensity has been reached (in that case the supervisor -%%% shall terminate). -%%% All restarts accured inside the period amount of seconds -%%% are kept in the #state.restarts list. -%%% Returns: {ok, State'} | {terminate, State'} -%%% ------------------------------------------------------ - -add_restart(State) -> - I = State#state.intensity, - P = State#state.period, - R = State#state.restarts, - Now = erlang:now(), - R1 = add_restart([Now|R], Now, P), - State1 = State#state{restarts = R1}, - case length(R1) of - CurI when CurI =< I -> - {ok, State1}; - _ -> - {terminate, State1} - end. - -add_restart([R|Restarts], Now, Period) -> - case inPeriod(R, Now, Period) of - true -> - [R|add_restart(Restarts, Now, Period)]; - _ -> - [] - end; -add_restart([], _, _) -> - []. - -inPeriod(Time, Now, Period) -> - case difference(Time, Now) of - T when T > Period -> - false; - _ -> - true - end. - -%% -%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored) -%% Calculate the time elapsed in seconds between two timestamps. -%% If MegaSecs is equal just subtract Secs. -%% Else calculate the Mega difference and add the Secs difference, -%% note that Secs difference can be negative, e.g. -%% {827, 999999, 676} diff {828, 1, 653753} == > 2 secs. -%% -difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM -> - ((CurM - TimeM) * 1000000) + (CurS - TimeS); -difference({_, TimeS, _}, {_, CurS, _}) -> - CurS - TimeS. - -%%% ------------------------------------------------------ -%%% Error and progress reporting. -%%% ------------------------------------------------------ - -report_error(Error, Reason, Child, SupName) -> - ErrorMsg = [{supervisor, SupName}, - {errorContext, Error}, - {reason, Reason}, - {offender, extract_child(Child)}], - error_logger:error_report(supervisor_report, ErrorMsg). - - -extract_child(Child) -> - [{pid, Child#child.pid}, - {name, Child#child.name}, - {mfa, Child#child.mfa}, - {restart_type, Child#child.restart_type}, - {shutdown, Child#child.shutdown}, - {child_type, Child#child.child_type}]. - -report_progress(Child, SupName) -> - Progress = [{supervisor, SupName}, - {started, extract_child(Child)}], - error_logger:info_report(progress, Progress). diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl deleted file mode 100644 index 0d50683d..00000000 --- a/src/tcp_acceptor.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor). - --behaviour(gen_server). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {callback, sock, ref}). - -%%-------------------------------------------------------------------- - -start_link(Callback, LSock) -> - gen_server:start_link(?MODULE, {Callback, LSock}, []). - -%%-------------------------------------------------------------------- - -init({Callback, LSock}) -> - gen_server:cast(self(), accept), - {ok, #state{callback=Callback, sock=LSock}}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(accept, State) -> - ok = file_handle_cache:obtain(), - accept(State); - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({inet_async, LSock, Ref, {ok, Sock}}, - State = #state{callback={M,F,A}, sock=LSock, ref=Ref}) -> - - %% patch up the socket so it looks like one we got from - %% gen_tcp:accept/1 - {ok, Mod} = inet_db:lookup_socket(LSock), - inet_db:register_socket(Sock, Mod), - - try - %% report - {Address, Port} = inet_op(fun () -> inet:sockname(LSock) end), - {PeerAddress, PeerPort} = inet_op(fun () -> inet:peername(Sock) end), - error_logger:info_msg("accepted TCP connection on ~s:~p from ~s:~p~n", - [rabbit_misc:ntoab(Address), Port, - rabbit_misc:ntoab(PeerAddress), PeerPort]), - %% In the event that somebody floods us with connections we can spew - %% the above message at error_logger faster than it can keep up. - %% So error_logger's mailbox grows unbounded until we eat all the - %% memory available and crash. So here's a meaningless synchronous call - %% to the underlying gen_event mechanism - when it returns the mailbox - %% is drained. - gen_event:which_handlers(error_logger), - %% handle - file_handle_cache:transfer(apply(M, F, A ++ [Sock])), - ok = file_handle_cache:obtain() - catch {inet_error, Reason} -> - gen_tcp:close(Sock), - error_logger:error_msg("unable to accept TCP connection: ~p~n", - [Reason]) - end, - - %% accept more - accept(State); - -handle_info({inet_async, LSock, Ref, {error, closed}}, - State=#state{sock=LSock, ref=Ref}) -> - %% It would be wrong to attempt to restart the acceptor when we - %% know this will fail. - {stop, normal, State}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -accept(State = #state{sock=LSock}) -> - case prim_inet:async_accept(LSock, -1) of - {ok, Ref} -> {noreply, State#state{ref=Ref}}; - Error -> {stop, {cannot_accept, Error}, State} - end. diff --git a/src/tcp_acceptor_sup.erl b/src/tcp_acceptor_sup.erl deleted file mode 100644 index bf0eacd1..00000000 --- a/src/tcp_acceptor_sup.erl +++ /dev/null @@ -1,31 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - -start_link(Name, Callback) -> - supervisor:start_link({local,Name}, ?MODULE, Callback). - -init(Callback) -> - {ok, {{simple_one_for_one, 10, 10}, - [{tcp_acceptor, {tcp_acceptor, start_link, [Callback]}, - transient, brutal_kill, worker, [tcp_acceptor]}]}}. diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl deleted file mode 100644 index cd646969..00000000 --- a/src/tcp_listener.erl +++ /dev/null @@ -1,84 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener). - --behaviour(gen_server). - --export([start_link/8]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {sock, on_startup, on_shutdown, label}). - -%%-------------------------------------------------------------------- - -start_link(IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label) -> - gen_server:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label}, []). - -%%-------------------------------------------------------------------- - -init({IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - {M,F,A} = OnStartup, OnShutdown, Label}) -> - process_flag(trap_exit, true), - case gen_tcp:listen(Port, SocketOpts ++ [{ip, IPAddress}, - {active, false}]) of - {ok, LSock} -> - lists:foreach(fun (_) -> - {ok, _APid} = supervisor:start_child( - AcceptorSup, [LSock]) - end, - lists:duplicate(ConcurrentAcceptorCount, dummy)), - {ok, {LIPAddress, LPort}} = inet:sockname(LSock), - error_logger:info_msg( - "started ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(LIPAddress), LPort]), - apply(M, F, A ++ [IPAddress, Port]), - {ok, #state{sock = LSock, - on_startup = OnStartup, on_shutdown = OnShutdown, - label = Label}}; - {error, Reason} -> - error_logger:error_msg( - "failed to start ~s on ~s:~p - ~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port, Reason]), - {stop, {cannot_listen, IPAddress, Port, Reason}} - end. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state{sock=LSock, on_shutdown = {M,F,A}, label=Label}) -> - {ok, {IPAddress, Port}} = inet:sockname(LSock), - gen_tcp:close(LSock), - error_logger:info_msg("stopped ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port]), - apply(M, F, A ++ [IPAddress, Port]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl deleted file mode 100644 index 58c2f30c..00000000 --- a/src/tcp_listener_sup.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener_sup). - --behaviour(supervisor). - --export([start_link/7, start_link/8]). - --export([init/1]). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, Label) -> - start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, 1, Label). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label) -> - supervisor:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}). - -init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}) -> - %% This is gross. The tcp_listener needs to know about the - %% tcp_acceptor_sup, and the only way I can think of accomplishing - %% that without jumping through hoops is to register the - %% tcp_acceptor_sup. - Name = rabbit_misc:tcp_name(tcp_acceptor_sup, IPAddress, Port), - {ok, {{one_for_all, 10, 10}, - [{tcp_acceptor_sup, {tcp_acceptor_sup, start_link, - [Name, AcceptCallback]}, - transient, infinity, supervisor, [tcp_acceptor_sup]}, - {tcp_listener, {tcp_listener, start_link, - [IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, Name, - OnStartup, OnShutdown, Label]}, - transient, 16#ffffffff, worker, [tcp_listener]}]}}. diff --git a/src/test_sup.erl b/src/test_sup.erl deleted file mode 100644 index b4df1fd0..00000000 --- a/src/test_sup.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(test_sup). - --behaviour(supervisor2). - --export([test_supervisor_delayed_restart/0, - init/1, start_child/0]). - -test_supervisor_delayed_restart() -> - passed = with_sup(simple_one_for_one_terminate, - fun (SupPid) -> - {ok, _ChildPid} = - supervisor2:start_child(SupPid, []), - test_supervisor_delayed_restart(SupPid) - end), - passed = with_sup(one_for_one, fun test_supervisor_delayed_restart/1). - -test_supervisor_delayed_restart(SupPid) -> - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(10), - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(10), - timeout = ping_child(SupPid), - timer:sleep(1010), - ok = ping_child(SupPid), - passed. - -with_sup(RestartStrategy, Fun) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, [RestartStrategy]), - Res = Fun(SupPid), - exit(SupPid, shutdown), - rabbit_misc:unlink_and_capture_exit(SupPid), - Res. - -init([RestartStrategy]) -> - {ok, {{RestartStrategy, 1, 1}, - [{test, {test_sup, start_child, []}, {permanent, 1}, - 16#ffffffff, worker, [test_sup]}]}}. - -start_child() -> - {ok, proc_lib:spawn_link(fun run_child/0)}. - -ping_child(SupPid) -> - Ref = make_ref(), - with_child_pid(SupPid, fun(ChildPid) -> ChildPid ! {ping, Ref, self()} end), - receive {pong, Ref} -> ok - after 1000 -> timeout - end. - -exit_child(SupPid) -> - with_child_pid(SupPid, fun(ChildPid) -> exit(ChildPid, abnormal) end), - ok. - -with_child_pid(SupPid, Fun) -> - case supervisor2:which_children(SupPid) of - [{_Id, undefined, worker, [test_sup]}] -> ok; - [{_Id, ChildPid, worker, [test_sup]}] -> Fun(ChildPid); - [] -> ok - end. - -run_child() -> - receive {ping, Ref, Pid} -> Pid ! {pong, Ref}, - run_child() - end. diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl deleted file mode 100644 index dcc6aff5..00000000 --- a/src/vm_memory_monitor.erl +++ /dev/null @@ -1,363 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% In practice Erlang shouldn't be allowed to grow to more than a half -%% of available memory. The pessimistic scenario is when the Erlang VM -%% has a single process that's consuming all memory. In such a case, -%% during garbage collection, Erlang tries to allocate a huge chunk of -%% continuous memory, which can result in a crash or heavy swapping. -%% -%% This module tries to warn Rabbit before such situations occur, so -%% that it has a higher chance to avoid running out of memory. - --module(vm_memory_monitor). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0, get_total_memory/0, get_vm_limit/0, - get_check_interval/0, set_check_interval/1, - get_vm_memory_high_watermark/0, set_vm_memory_high_watermark/1, - get_memory_limit/0]). - - --define(SERVER, ?MODULE). --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%% For an unknown OS, we assume that we have 1GB of memory. It'll be -%% wrong. Scale by vm_memory_high_watermark in configuration to get a -%% sensible value. --define(MEMORY_SIZE_FOR_UNKNOWN_OS, 1073741824). - --record(state, {total_memory, - memory_limit, - timeout, - timer, - alarmed - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (float()) -> {'ok', pid()} | {'error', any()}). --spec(update/0 :: () -> 'ok'). --spec(get_total_memory/0 :: () -> (non_neg_integer() | 'unknown')). --spec(get_vm_limit/0 :: () -> non_neg_integer()). --spec(get_memory_limit/0 :: () -> non_neg_integer()). --spec(get_check_interval/0 :: () -> non_neg_integer()). --spec(set_check_interval/1 :: (non_neg_integer()) -> 'ok'). --spec(get_vm_memory_high_watermark/0 :: () -> float()). --spec(set_vm_memory_high_watermark/1 :: (float()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -update() -> - gen_server:cast(?SERVER, update). - -get_total_memory() -> - get_total_memory(os:type()). - -get_vm_limit() -> - get_vm_limit(os:type()). - -get_check_interval() -> - gen_server:call(?MODULE, get_check_interval, infinity). - -set_check_interval(Fraction) -> - gen_server:call(?MODULE, {set_check_interval, Fraction}, infinity). - -get_vm_memory_high_watermark() -> - gen_server:call(?MODULE, get_vm_memory_high_watermark, infinity). - -set_vm_memory_high_watermark(Fraction) -> - gen_server:call(?MODULE, {set_vm_memory_high_watermark, Fraction}, - infinity). - -get_memory_limit() -> - gen_server:call(?MODULE, get_memory_limit, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -init([MemFraction]) -> - TotalMemory = - case get_total_memory() of - unknown -> - error_logger:warning_msg( - "Unknown total memory size for your OS ~p. " - "Assuming memory size is ~pMB.~n", - [os:type(), trunc(?MEMORY_SIZE_FOR_UNKNOWN_OS/1048576)]), - ?MEMORY_SIZE_FOR_UNKNOWN_OS; - M -> M - end, - MemLimit = get_mem_limit(MemFraction, TotalMemory), - error_logger:info_msg("Memory limit set to ~pMB.~n", - [trunc(MemLimit/1048576)]), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - State = #state { total_memory = TotalMemory, - memory_limit = MemLimit, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - alarmed = false}, - {ok, internal_update(State)}. - -handle_call(get_vm_memory_high_watermark, _From, State) -> - {reply, State#state.memory_limit / State#state.total_memory, State}; - -handle_call({set_vm_memory_high_watermark, MemFraction}, _From, State) -> - MemLimit = get_mem_limit(MemFraction, State#state.total_memory), - error_logger:info_msg("Memory alarm changed to ~p, ~p bytes.~n", - [MemFraction, MemLimit]), - {reply, ok, State#state{memory_limit = MemLimit}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_limit, _From, State) -> - {reply, State#state.memory_limit, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% Server Internals -%%---------------------------------------------------------------------------- - -internal_update(State = #state { memory_limit = MemLimit, - alarmed = Alarmed}) -> - MemUsed = erlang:memory(total), - NewAlarmed = MemUsed > MemLimit, - case {Alarmed, NewAlarmed} of - {false, true} -> - emit_update_info(set, MemUsed, MemLimit), - alarm_handler:set_alarm({{vm_memory_high_watermark, node()}, []}); - {true, false} -> - emit_update_info(clear, MemUsed, MemLimit), - alarm_handler:clear_alarm({vm_memory_high_watermark, node()}); - _ -> - ok - end, - State #state {alarmed = NewAlarmed}. - -emit_update_info(State, MemUsed, MemLimit) -> - error_logger:info_msg( - "vm_memory_high_watermark ~p. Memory used:~p allowed:~p~n", - [State, MemUsed, MemLimit]). - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% According to http://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx -%% Windows has 2GB and 8TB of address space for 32 and 64 bit accordingly. -get_vm_limit({win32,_OSname}) -> - case erlang:system_info(wordsize) of - 4 -> 2*1024*1024*1024; %% 2 GB for 32 bits 2^31 - 8 -> 8*1024*1024*1024*1024 %% 8 TB for 64 bits 2^42 - end; - -%% On a 32-bit machine, if you're using more than 2 gigs of RAM you're -%% in big trouble anyway. -get_vm_limit(_OsType) -> - case erlang:system_info(wordsize) of - 4 -> 4*1024*1024*1024; %% 4 GB for 32 bits 2^32 - 8 -> 256*1024*1024*1024*1024 %% 256 TB for 64 bits 2^48 - %%http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_details - end. - -get_mem_limit(MemFraction, TotalMemory) -> - AvMem = lists:min([TotalMemory, get_vm_limit()]), - trunc(AvMem * MemFraction). - -%%---------------------------------------------------------------------------- -%% Internal Helpers -%%---------------------------------------------------------------------------- -cmd(Command) -> - Exec = hd(string:tokens(Command, " ")), - case os:find_executable(Exec) of - false -> throw({command_not_found, Exec}); - _ -> os:cmd(Command) - end. - -%% get_total_memory(OS) -> Total -%% Windows and Freebsd code based on: memsup:get_memory_usage/1 -%% Original code was part of OTP and released under "Erlang Public License". - -get_total_memory({unix,darwin}) -> - File = cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_mach/1, Lines)), - [PageSize, Inactive, Active, Free, Wired] = - [dict:fetch(Key, Dict) || - Key <- [page_size, 'Pages inactive', 'Pages active', 'Pages free', - 'Pages wired down']], - PageSize * (Inactive + Active + Free + Wired); - -get_total_memory({unix,freebsd}) -> - PageSize = freebsd_sysctl("vm.stats.vm.v_page_size"), - PageCount = freebsd_sysctl("vm.stats.vm.v_page_count"), - PageCount * PageSize; - -get_total_memory({win32,_OSname}) -> - %% Due to the Erlang print format bug, on Windows boxes the memory - %% size is broken. For example Windows 7 64 bit with 4Gigs of RAM - %% we get negative memory size: - %% > os_mon_sysinfo:get_mem_info(). - %% ["76 -1658880 1016913920 -1 -1021628416 2147352576 2134794240\n"] - %% Due to this bug, we don't actually know anything. Even if the - %% number is postive we can't be sure if it's correct. This only - %% affects us on os_mon versions prior to 2.2.1. - case application:get_key(os_mon, vsn) of - undefined -> - unknown; - {ok, Version} -> - case rabbit_misc:version_compare(Version, "2.2.1", lt) of - true -> %% os_mon is < 2.2.1, so we know nothing - unknown; - false -> - [Result|_] = os_mon_sysinfo:get_mem_info(), - {ok, [_MemLoad, TotPhys, _AvailPhys, - _TotPage, _AvailPage, _TotV, _AvailV], _RestStr} = - io_lib:fread("~d~d~d~d~d~d~d", Result), - TotPhys - end - end; - -get_total_memory({unix, linux}) -> - File = read_proc_file("/proc/meminfo"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_linux/1, Lines)), - dict:fetch('MemTotal', Dict); - -get_total_memory({unix, sunos}) -> - File = cmd("/usr/sbin/prtconf"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_sunos/1, Lines)), - dict:fetch('Memory size', Dict); - -get_total_memory({unix, aix}) -> - File = cmd("/usr/bin/vmstat -v"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_aix/1, Lines)), - dict:fetch('memory pages', Dict) * 4096; - -get_total_memory(_OsType) -> - unknown. - -%% A line looks like "Foo bar: 123456." -parse_line_mach(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. - -%% A line looks like "FooBar: 123456 kB" -parse_line_linux(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. - -%% A line looks like "Memory size: 1024 Megabytes" -parse_line_sunos(Line) -> - case string:tokens(Line, ":") of - [Name, RHS | _Rest] -> - [Value1 | UnitsRest] = string:tokens(RHS, " "), - Value2 = case UnitsRest of - ["Gigabytes"] -> - list_to_integer(Value1) * 1024 * 1024 * 1024; - ["Megabytes"] -> - list_to_integer(Value1) * 1024 * 1024; - ["Kilobytes"] -> - list_to_integer(Value1) * 1024; - _ -> - Value1 ++ UnitsRest %% no known units - end, - {list_to_atom(Name), Value2}; - [Name] -> {list_to_atom(Name), none} - end. - -%% Lines look like " 12345 memory pages" -%% or " 80.1 maxpin percentage" -parse_line_aix(Line) -> - [Value | NameWords] = string:tokens(Line, " "), - Name = string:join(NameWords, " "), - {list_to_atom(Name), - case lists:member($., Value) of - true -> trunc(list_to_float(Value)); - false -> list_to_integer(Value) - end}. - -freebsd_sysctl(Def) -> - list_to_integer(cmd("/sbin/sysctl -n " ++ Def) -- "\n"). - -%% file:read_file does not work on files in /proc as it seems to get -%% the size of the file first and then read that many bytes. But files -%% in /proc always have length 0, we just have to read until we get -%% eof. -read_proc_file(File) -> - {ok, IoDevice} = file:open(File, [read, raw]), - Res = read_proc_file(IoDevice, []), - file:close(IoDevice), - lists:flatten(lists:reverse(Res)). - --define(BUFFER_SIZE, 1024). -read_proc_file(IoDevice, Acc) -> - case file:read(IoDevice, ?BUFFER_SIZE) of - {ok, Res} -> read_proc_file(IoDevice, [Res | Acc]); - eof -> Acc - end. diff --git a/src/worker_pool.erl b/src/worker_pool.erl deleted file mode 100644 index e4f260cc..00000000 --- a/src/worker_pool.erl +++ /dev/null @@ -1,140 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool). - -%% Generic worker pool manager. -%% -%% Supports nested submission of jobs (nested jobs always run -%% immediately in current worker process). -%% -%% Possible future enhancements: -%% -%% 1. Allow priorities (basically, change the pending queue to a -%% priority_queue). - --behaviour(gen_server2). - --export([start_link/0, submit/1, submit_async/1, idle/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(submit/1 :: (fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/1 :: - (fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(state, { available, pending }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], - [{timeout, infinity}]). - -submit(Fun) -> - case get(worker_pool_worker) of - true -> worker_pool_worker:run(Fun); - _ -> Pid = gen_server2:call(?SERVER, next_free, infinity), - worker_pool_worker:submit(Pid, Fun) - end. - -submit_async(Fun) -> - gen_server2:cast(?SERVER, {run_async, Fun}). - -idle(WId) -> - gen_server2:cast(?SERVER, {idle, WId}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state { pending = queue:new(), available = queue:new() }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(next_free, From, State = #state { available = Avail, - pending = Pending }) -> - case queue:out(Avail) of - {empty, _Avail} -> - {noreply, - State #state { pending = queue:in({next_free, From}, Pending) }, - hibernate}; - {{value, WId}, Avail1} -> - {reply, get_worker_pid(WId), State #state { available = Avail1 }, - hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({idle, WId}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, case queue:out(Pending) of - {empty, _Pending} -> - State #state { available = queue:in(WId, Avail) }; - {{value, {next_free, From}}, Pending1} -> - gen_server2:reply(From, get_worker_pid(WId)), - State #state { pending = Pending1 }; - {{value, {run_async, Fun}}, Pending1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { pending = Pending1 } - end, hibernate}; - -handle_cast({run_async, Fun}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, - case queue:out(Avail) of - {empty, _Avail} -> - State #state { pending = queue:in({run_async, Fun}, Pending)}; - {{value, WId}, Avail1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { available = Avail1 } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. - -%%---------------------------------------------------------------------------- - -get_worker_pid(WId) -> - [{WId, Pid, _Type, _Modules} | _] = - lists:dropwhile(fun ({Id, _Pid, _Type, _Modules}) - when Id =:= WId -> false; - (_) -> true - end, - supervisor:which_children(worker_pool_sup)), - Pid. diff --git a/src/worker_pool_sup.erl b/src/worker_pool_sup.erl deleted file mode 100644 index 28c1adc6..00000000 --- a/src/worker_pool_sup.erl +++ /dev/null @@ -1,53 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_sup). - --behaviour(supervisor). - --export([start_link/0, start_link/1]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link() -> - start_link(erlang:system_info(schedulers)). - -start_link(WCount) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [WCount]). - -%%---------------------------------------------------------------------------- - -init([WCount]) -> - {ok, {{one_for_one, 10, 10}, - [{worker_pool, {worker_pool, start_link, []}, transient, - 16#ffffffff, worker, [worker_pool]} | - [{N, {worker_pool_worker, start_link, [N]}, transient, 16#ffffffff, - worker, [worker_pool_worker]} || N <- lists:seq(1, WCount)]]}}. diff --git a/src/worker_pool_worker.erl b/src/worker_pool_worker.erl deleted file mode 100644 index 78ab4df3..00000000 --- a/src/worker_pool_worker.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_worker). - --behaviour(gen_server2). - --export([start_link/1, submit/2, submit_async/2, run/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (any()) -> {'ok', pid()} | {'error', any()}). --spec(submit/2 :: (pid(), fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/2 :: - (pid(), fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). --spec(run/1 :: (fun (() -> A)) -> A; - ({atom(), atom(), [any()]}) -> any()). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(WId) -> - gen_server2:start_link(?MODULE, [WId], [{timeout, infinity}]). - -submit(Pid, Fun) -> - gen_server2:call(Pid, {submit, Fun}, infinity). - -submit_async(Pid, Fun) -> - gen_server2:cast(Pid, {submit_async, Fun}). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -run({M, F, A}) -> - apply(M, F, A); -run(Fun) -> - Fun(). - -%%---------------------------------------------------------------------------- - -init([WId]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - ok = worker_pool:idle(WId), - put(worker_pool_worker, true), - {ok, WId, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call({submit, Fun}, From, WId) -> - gen_server2:reply(From, run(Fun)), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({submit_async, Fun}, WId) -> - run(Fun), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_cast({set_maximum_since_use, Age}, WId) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, WId, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. -- cgit v1.2.1 From ca6a8a457402e1278811427f4af9a2fca75d180f Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 17 Mar 2011 17:25:08 -0700 Subject: Made all stylistic changes to rabbit-{ram,mnesia,disk}_queue. --- Makefile | 2 + src/rabbit_disk_queue.erl | 734 ++++++++++++++++++++++++++++++++++++++++ src/rabbit_mnesia_queue.erl | 800 ++++++++++++++++++++++++++++++++++++++++++++ src/rabbit_ram_queue.erl | 564 +++++++++++++++++++++++++++++++ 4 files changed, 2100 insertions(+) create mode 100644 src/rabbit_disk_queue.erl create mode 100644 src/rabbit_mnesia_queue.erl create mode 100644 src/rabbit_ram_queue.erl diff --git a/Makefile b/Makefile index cdb86aad..9a25ee08 100644 --- a/Makefile +++ b/Makefile @@ -110,6 +110,8 @@ $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_c dialyze: $(BEAM_TARGETS) $(BASIC_PLT) dialyzer --plt $(BASIC_PLT) --no_native \ + -Wunmatched_returns -Werror_handling -Wbehaviours \ + -Wunderspecs \ -Wrace_conditions $(BEAM_TARGETS) # rabbit.plt is used by rabbitmq-erlang-client's dialyze make target diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl new file mode 100644 index 00000000..2593d9e9 --- /dev/null +++ b/src/rabbit_disk_queue.erl @@ -0,0 +1,734 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. +%% + +-module(rabbit_disk_queue). + +-export( + [start/1, stop/0, init/5, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, drain_confirmed/1, fetch/2, ack/2, + tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, requeue/3, len/1, + is_empty/1, dropwhile/2, set_ram_duration_target/2, ram_duration/1, + needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, status/1]). + +%% ---------------------------------------------------------------------------- +%% This is a simple implementation of the rabbit_backing_queue +%% behavior, where all msgs pass through disk (i.e., the file +%% system). A few msgs may be in RAM on the way in or on the way out, +%% and msgs may not be sent to disk if the queue is not long +%% enough. The goal is to maximize throughput, using sequential-access +%% for the disk instead of random-access. +%% +%% This will eventually be structured as a plug-in instead of an extra +%% module in the middle of the server tree.... +%% ---------------------------------------------------------------------------- + +%% ---------------------------------------------------------------------------- +%% This module wraps msgs into msg_status records for internal use, +%% including additional information. Pending acks are also recorded as +%% msg_status records. +%% +%% All queues are non-durable in this version, and all msgs are +%% treated as non-persistent. (This may break some clients and some +%% tests for durable queues, but it also keeps some tests from +%% breaking the test apparatus.) +%% ---------------------------------------------------------------------------- + +%% TODO: Need to provide better back-pressure when queue is filling up. + +-behaviour(rabbit_backing_queue). + +%% The state record is the in-RAM AMQP queue state. It contains the +%% queue of msg_status records; the next_seq_id; and the AMQP +%% transaction dict. + +-record(state, % The in-RAM queue state + { dir, % The directory name for disk files + next_file_id, % The next file number in the directory + q0, % The in-RAM queue of msg_status records to write + q0_len, % queue:len of q0 + q_file_names, % The queue of file names + q_file_names_len, % queue:len of q_file_names + q1, % The in-RAM queue of msg_status records to read + q1_len, % queue:len of q1 + pending_acks, % The seq_id->msg_status map of pending acks + next_seq_id, % The next msg_status record's seq_id + confirmed, % The set of msgs recently confirmed + txn_dict, % In-progress txn->tx map + worker % Async worker child + }). + +%% A msg_status record is a wrapper around a msg. It contains a +%% seq_id, assigned when the msg is published; the msg itself; the +%% msg's props, as presented by the client or as transformed by the +%% client; and an is-delivered flag, for reporting. + +-record(msg_status, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg + msg, % The msg itself + props, % The msg properties + is_delivered % Has the msg been delivered? (for reporting) + }). + +%% A TX record is the value stored in the txn_dict. It contains a list +%% of (msg, props) pairs to be published after the AMQP transaction, +%% in reverse order, and a list of seq_ids to ack after the AMQP +%% transaction, in any order. No other write-operations are allowed in +%% AMQP transactions, and the effects of these operations are not +%% visible to the client until after the AMQP transaction commits. + +-record(tx, + { to_pub, % List of (msg, props) pairs to publish + to_ack % List of seq_ids to ack + }). + +-include("rabbit.hrl"). + +-define(FILE_BATCH_SIZE, 1000). + +%% ---------------------------------------------------------------------------- + +%% BUG: Restore -ifdef, -endif. + +%% -ifdef(use_specs). + +-type(maybe(T) :: nothing | {just, T}). + +-type(seq_id() :: non_neg_integer()). +-type(ack() :: seq_id()). + +-type(state() :: #state { dir :: string(), + next_file_id :: non_neg_integer(), + q0 :: queue(), + q0_len :: non_neg_integer(), + q_file_names :: queue(), + q_file_names_len :: non_neg_integer(), + q1 :: queue(), + q1_len :: non_neg_integer(), + pending_acks :: dict(), + next_seq_id :: seq_id(), + confirmed :: gb_set(), + txn_dict :: dict(), + worker :: pid() }). + +-type(msg_status() :: #msg_status { seq_id :: seq_id(), + msg :: rabbit_types:basic_message(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). + +-type(tx() :: #tx { to_pub :: [pub()], + to_ack :: [seq_id()] }). + +-type(pub() :: { rabbit_types:basic_message(), + rabbit_types:message_properties() }). + +-include("rabbit_backing_queue_spec.hrl"). + +%% -endif. + +%% ---------------------------------------------------------------------------- +%% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here +%% for clarity. + +%% ---------------------------------------------------------------------------- +%% start/1 predicts that a list of (durable) queues will be started in +%% the near future. This lets us perform early checking of the +%% consistency of those queues, and initialize other shared +%% resources. These queues might not in fact be started, and other +%% queues might be started instead. It is ignored in this +%% implementation. +%% +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). + +start(_DurableQueues) -> ok. + +%% ---------------------------------------------------------------------------- +%% stop/0 tears down all state/resources upon shutdown. It might not +%% be called. It is ignored in this implementation. +%% +%% -spec(stop/0 :: () -> 'ok'). + +stop() -> ok. + +%% ---------------------------------------------------------------------------- +%% init/5 creates one backing queue, returning its state. Names are +%% local to the vhost, and must be unique. +%% +%% -spec(init/5 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery(), +%% async_callback(), sync_callback()) -> state()). + +init(QueueName, _IsDurable, _Recover, _AsyncCallback, _SyncCallback) -> + Dir = dir(QueueName), + case file:make_dir(Dir) of + ok -> ok; + {error, eexist} -> {ok, FileNames} = file:list_dir(Dir), + lists:foreach( + fun (FileName) -> + ok = file:delete(Dir ++ "/" ++ FileName) + end, + FileNames) + end, + #state { dir = Dir, + next_file_id = 0, + q0 = queue:new(), + q0_len = 0, + q_file_names = queue:new(), + q_file_names_len = 0, + q1 = queue:new(), + q1_len = 0, + pending_acks = dict:new(), + next_seq_id = 0, + confirmed = gb_sets:new(), + txn_dict = dict:new(), + worker = spawn_worker() }. + +%% ---------------------------------------------------------------------------- +%% terminate/1 deletes all of a queue's pending acks, prior to +%% shutdown. Other calls might be made following terminate/1. +%% +%% -spec(terminate/1 :: (state()) -> state()). + +terminate(State) -> State #state { pending_acks = dict:new() }. + +%% ---------------------------------------------------------------------------- +%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and +%% pending acks, prior to shutdown. Other calls might be made +%% following delete_and_terminate/1. +%% +%% -spec(delete_and_terminate/1 :: (state()) -> state()). + +delete_and_terminate(State = #state { q_file_names = QFileNames }) -> + lists:foreach(fun file:delete/1, queue:to_list(QFileNames)), + State #state { q0 = queue:new(), + q0_len = 0, + q_file_names = queue:new(), + q_file_names_len = 0, + q1 = queue:new(), + q1_len = 0, + pending_acks = dict:new() }. + +%% ---------------------------------------------------------------------------- +%% purge/1 deletes all of queue's enqueued msgs, returning the count +%% of msgs purged. +%% +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(State = #state { q_file_names = QFileNames }) -> + lists:foreach(fun file:delete/1, queue:to_list(QFileNames)), + {internal_len(State), + State #state { q0 = queue:new(), + q0_len = 0, + q_file_names = queue:new(), + q_file_names_len = 0, + q1 = queue:new(), + q1_len = 0 }}. + +%% ---------------------------------------------------------------------------- +%% publish/3 publishes a msg. +%% +%% -spec(publish/3 :: +%% (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +publish(Msg, Props, State) -> + State1 = internal_publish(Msg, Props, false, State), + confirm([{Msg, Props}], State1). + +%% ---------------------------------------------------------------------------- +%% publish_delivered/4 is called after a msg has been passed straight +%% out to a client because the queue is empty. We update all state +%% (e.g., next_seq_id) as if we had in fact handled the msg. +%% +%% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {ack(), state()}; +%% (false, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {undefined, state()}). + +publish_delivered(false, Msg, Props, State) -> + {undefined, confirm([{Msg, Props}], State)}; +publish_delivered(true, + Msg, + Props, + State = #state { next_seq_id = SeqId, + pending_acks = PendingAcks }) -> + MsgStatus = #msg_status { seq_id = SeqId, + msg = Msg, + props = Props, + is_delivered = true }, + State1 = State #state { + next_seq_id = SeqId + 1, + pending_acks = dict:store(SeqId, MsgStatus, PendingAcks) }, + {SeqId, confirm([{Msg, Props}], State1)}. + +%% ---------------------------------------------------------------------------- +%% drain_confirmed/1 returns the ids of all of the messages that have +%% been confirmed since the last invocation of this function (or since +%% initialisation). +%% +%% -spec(drain_confirmed/1 :: (state()) -> {[rabbit_guid:guid()], state()}). + +drain_confirmed(State = #state { confirmed = Confirmed }) -> + {gb_sets:to_list(Confirmed), State #state { confirmed = gb_sets:new() }}. + +%% ---------------------------------------------------------------------------- +%% dropwhile/2 drops msgs from the head of the queue while there are +%% msgs and while the supplied predicate returns true. +%% +%% The only current use of dropwhile/1 is to drop expired messages +%% from the head of the queue. +%% +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). + +dropwhile(Pred, State) -> internal_dropwhile(Pred, State). + +%% ---------------------------------------------------------------------------- +%% fetch/2 produces the next msg, if any. +%% +%% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; +%% (false, state()) -> {fetch_result(undefined), state()}). + +fetch(AckRequired, State) -> internal_fetch(AckRequired, State). + +%% ---------------------------------------------------------------------------- +%% ack/2 acknowledges msgs named by SeqIds. +%% +%% -spec(ack/2 :: ([ack()], state()) -> state()). + +ack(SeqIds, State) -> internal_ack(SeqIds, State). + +%% ---------------------------------------------------------------------------- +%% tx_publish/4 records a pending publish within an AMQP +%% transaction. It stores the msg and its properties in the to_pub +%% field of the txn, waiting to be committed. +%% +%% -spec(tx_publish/4 :: +%% (rabbit_types:txn(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), + State #state { + txn_dict = + store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, TxnDict) }. + +%% ---------------------------------------------------------------------------- +%% tx_ack/3 records pending acks within an AMQP transaction. It stores +%% the seq_id in the acks field of the txn, waiting to be committed. +%% +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). + +tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), + State #state { + txn_dict = + store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, TxnDict) }. + +%% ---------------------------------------------------------------------------- +%% tx_rollback/2 aborts a pending AMQP transaction. +%% +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + +tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> + #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), + {SeqIds, State #state { txn_dict = erase_tx(Txn, TxnDict) }}. + +%% ---------------------------------------------------------------------------- +%% tx_commit/4 commits a pending AMQP transaction. The F passed in is +%% called once the msgs have really been commited (which does not +%% matter here). +%% +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), +%% fun (() -> any()), +%% message_properties_transformer(), +%% state()) +%% -> {[ack()], state()}). + +tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), + F(), + State1 = internal_tx_commit( + Pubs, + SeqIds, + PropsF, + State #state { txn_dict = erase_tx(Txn, TxnDict) }), + {SeqIds, confirm(Pubs, State1)}. + +%% ---------------------------------------------------------------------------- +%% requeue/3 reinserts msgs into the queue that have already been +%% delivered and were pending acknowledgement. +%% +%% -spec(requeue/3 :: +%% ([ack()], message_properties_transformer(), state()) -> state()). + +requeue(SeqIds, PropsF, State) -> + del_pending_acks( + fun (#msg_status { msg = Msg, props = Props }, S) -> + internal_publish(Msg, PropsF(Props), true, S) + end, + SeqIds, + State). + +%% ---------------------------------------------------------------------------- +%% len/1 returns the current queue length. (The queue length is +%% maintained internally instead of being computed on demand, since +%% the rabbit_amqqueue_process module calls len/1 so frequently.) +%% +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(State) -> internal_len(State). + +%% ---------------------------------------------------------------------------- +%% is_empty/1 returns true iff the queue is empty. +%% +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(State) -> 0 == internal_len(State). + +%% ---------------------------------------------------------------------------- +%% set_ram_duration_target informs us that the target is to have no +%% more msgs in RAM than indicated by the duration and the current +%% queue rates. It is ignored in this implementation. +%% +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) +%% -> state()). + +set_ram_duration_target(_, State) -> State. + +%% ---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the msgs in RAM represent given the current rates of the +%% queue. It is a dummy in this implementation. +%% +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). + +ram_duration(State) -> {0, State}. + +%% ---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns true iff idle_timeout should be called +%% as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires). It always returns false in this +%% implementation. +%% +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +needs_idle_timeout(_) -> false. + +%% ---------------------------------------------------------------------------- +%% idle_timeout/1 is called (eventually) after needs_idle_timeout +%% returns true. It is a dummy in this implementation. +%% +%% -spec(idle_timeout/1 :: (state()) -> state()). + +idle_timeout(State) -> State. + +%% ---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. It is a dummy in this implementation. +%% +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). + +handle_pre_hibernate(State) -> State. + +%% ---------------------------------------------------------------------------- +%% status/1 exists for debugging and operational purposes, to be able +%% to expose state via rabbitmqctl. +%% +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(State = #state { pending_acks = PendingAcks, + next_seq_id = NextSeqId }) -> + [{len, internal_len(State)}, + {next_seq_id, NextSeqId}, + {acks, dict:size(PendingAcks)}]. + +%% ---------------------------------------------------------------------------- +%% Helper functions. +%% ---------------------------------------------------------------------------- + +%% internal_fetch/2 fetches the next msg, if any, generating a pending +%% ack as necessary. + +-spec(internal_fetch(true, state()) -> {fetch_result(ack()), state()}; + (false, state()) -> {fetch_result(undefined), state()}). + +internal_fetch(AckRequired, State) -> + State1 = #state { q1 = Q, q1_len = QLen } = pull_q1(State), + case queue:out(Q) of + {empty, _} -> {empty, State1}; + {{value, MsgStatus}, Q1} -> + post_pop(AckRequired, + MsgStatus, + State1 #state { q1 = Q1, q1_len = QLen - 1 }) + end. + +-spec internal_tx_commit([pub()], + [seq_id()], + message_properties_transformer(), + state()) -> + state(). + +internal_tx_commit(Pubs, SeqIds, PropsF, State) -> + State1 = internal_ack(SeqIds, State), + lists:foldl( + fun ({Msg, Props}, S) -> + internal_publish(Msg, PropsF(Props), false, S) + end, + State1, + lists:reverse(Pubs)). + +-spec internal_publish(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). + +internal_publish(Msg, + Props, + IsDelivered, + State = #state { q0 = Q0, + q0_len = Q0Len, + next_seq_id = SeqId }) -> + MsgStatus = #msg_status { + seq_id = SeqId, msg = Msg, props = Props, is_delivered = IsDelivered }, + push_q0(State #state { q0 = queue:in(MsgStatus, Q0), + q0_len = Q0Len + 1, + next_seq_id = SeqId + 1 }). + +-spec(internal_ack/2 :: ([seq_id()], state()) -> state()). + +internal_ack(SeqIds, State) -> + del_pending_acks(fun (_, S) -> S end, SeqIds, State). + +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), state()) + -> state()). + +internal_dropwhile(Pred, State) -> + State1 = #state { q1 = Q, q1_len = QLen } = pull_q1(State), + case queue:out(Q) of + {empty, _} -> State1; + {{value, MsgStatus = #msg_status { props = Props }}, Q1} -> + case Pred(Props) of + true -> State2 = State #state { q1 = Q1, q1_len = QLen - 1 }, + {_, State3} = post_pop(false, MsgStatus, State2), + internal_dropwhile(Pred, State3); + false -> State1 + end + end. + +%% post_pop operates after popping a msg_status from the queue, +%% adding a pending ack if necessary. + +-spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; + (false, msg_status(), state()) -> + {fetch_result(undefined), state()}). + +post_pop(true, + MsgStatus = #msg_status { + seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + State = #state { pending_acks = PendingAcks }) -> + MsgStatus1 = MsgStatus #msg_status { is_delivered = true }, + {{Msg, IsDelivered, SeqId, internal_len(State)}, + State #state { + pending_acks = dict:store(SeqId, MsgStatus1, PendingAcks) }}; +post_pop(false, + #msg_status { msg = Msg, is_delivered = IsDelivered }, + State) -> + {{Msg, IsDelivered, undefined, internal_len(State)}, State}. + +%% del_pending_acks deletes some set of pending acks from the +%% pending_acks dict, applying a function F after each msg is deleted. + +-spec del_pending_acks(fun ((msg_status(), state()) -> state()), + [seq_id()], + state()) -> + state(). + +del_pending_acks(F, SeqIds, State) -> + lists:foldl( + fun (SeqId, S = #state { pending_acks = PendingAcks }) -> + MsgStatus = dict:fetch(SeqId, PendingAcks), + F(MsgStatus, + S #state { pending_acks = dict:erase(SeqId, PendingAcks) }) + end, + State, + SeqIds). + +%% ---------------------------------------------------------------------------- +%% Disk helper functions. +%% ---------------------------------------------------------------------------- + +%% push_q0/1 pushes the contents of q0 to disk unless q0 contains less +%% than ?FILE_BATCH_SIZE msgs. + +-spec push_q0(state()) -> state(). + +push_q0(State = #state { dir = Dir, + next_file_id = FileId, + q0 = Q0, + q0_len = Q0Len, + q_file_names = QFileNames, + q_file_names_len = QFileNamesLen, + worker = Worker }) -> + if Q0Len < ?FILE_BATCH_SIZE -> State; + true -> + FileName = Dir ++ "/" ++ integer_to_list(FileId), + Worker ! {write_behind, FileName, term_to_binary(Q0)}, + case queue:is_empty(QFileNames) of + true -> + Worker ! {read_ahead, FileName }; + false -> ok + end, + State #state { next_file_id = FileId + 1, + q0 = queue:new(), + q0_len = 0, + q_file_names = queue:in(FileName, QFileNames), + q_file_names_len = QFileNamesLen + 1 } + end. + +%% pull_q1/1 makes q1 non-empty, unless there are no msgs on disk or +%% in q0. + +-spec pull_q1(state()) -> state(). + +pull_q1(State = #state { q0 = Q0, + q0_len = Q0Len, + q_file_names = QFileNames, + q_file_names_len = QFileNamesLen, + q1_len = Q1Len, + worker = Worker }) -> + if Q1Len > 0 -> State; + QFileNamesLen > 0 -> + {{value, FileName}, QFileNames1} = queue:out(QFileNames), + Worker ! {read, FileName}, + receive + {binary, Binary} -> + ok + end, + case queue:out(QFileNames1) of + {{value, FileName1}, _} -> + Worker ! {read_ahead, FileName1}; + _ -> ok + end, + State #state { q_file_names = QFileNames1, + q_file_names_len = QFileNamesLen - 1, + q1 = binary_to_term(Binary), + q1_len = ?FILE_BATCH_SIZE }; + Q0Len > 0 -> State #state { q0 = queue:new(), + q0_len = 0, + q1 = Q0, + q1_len = Q0Len }; + true -> State + end. + +%% ---------------------------------------------------------------------------- +%% Pure helper functions. +%% ---------------------------------------------------------------------------- + +%% Convert a queue name (a record) into a directory name (a string). + +%% TODO: Import correct argument type. + +%% TODO: Use Mnesia directory instead of random desktop directory. + +-spec dir({resource, binary(), queue, binary()}) -> string(). + +dir({resource, VHost, queue, Name}) -> + VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), + Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), + Str = lists:flatten(io_lib:format("~999999999999p", [{VHost2, Name2}])), + "/Users/john/Desktop/" ++ Str. + +-spec internal_len(state()) -> non_neg_integer(). + +internal_len(#state { q0_len = Q0Len, + q_file_names_len = QFileNamesLen, + q1_len = Q1Len }) -> + Q0Len + ?FILE_BATCH_SIZE * QFileNamesLen + Q1Len. + +-spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). + +lookup_tx(Txn, TxnDict) -> case dict:find(Txn, TxnDict) of + error -> #tx { to_pub = [], to_ack = [] }; + {ok, Tx} -> Tx + end. + +-spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). + +store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). + +-spec erase_tx(rabbit_types:txn(), dict()) -> dict(). + +erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). + +%% ---------------------------------------------------------------------------- +%% Internal plumbing for confirms (aka publisher acks) +%% ---------------------------------------------------------------------------- + +%% confirm/1 records confirmed messages. + +-spec confirm([pub()], state()) -> state(). + +confirm(Pubs, State = #state { confirmed = Confirmed }) -> + MsgIds = + [MsgId || {#basic_message { id = MsgId }, + #message_properties { needs_confirming = true }} <- Pubs], + case MsgIds of + [] -> State; + _ -> State #state { + confirmed = + gb_sets:union(Confirmed, gb_sets:from_list(MsgIds)) } + end. + +%% ---------------------------------------------------------------------------- +%% Background worker process for speeding up demo, currently with no +%% mechanisms for shutdown +%% ---------------------------------------------------------------------------- + +-spec spawn_worker() -> pid(). + +spawn_worker() -> Parent = self(), + spawn(fun() -> worker(Parent, nothing) end). + +-spec worker(pid(), maybe({string(), binary()})) -> none(). + +worker(Parent, State) -> + receive + {write_behind, FileName, Binary} -> + ok = file:write_file(FileName, Binary), + worker(Parent, State); + {read_ahead, FileName} -> + {ok, Binary} = file:read_file(FileName), + ok = file:delete(FileName), + worker(Parent, {just, {FileName, Binary}}); + {read, FileName} -> + {just, {FileName, Binary}} = State, + Parent ! {binary, Binary}, + worker(Parent, nothing) + end. diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl new file mode 100644 index 00000000..4a4040fa --- /dev/null +++ b/src/rabbit_mnesia_queue.erl @@ -0,0 +1,800 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. +%% + +-module(rabbit_mnesia_queue). + +-export( + [start/1, stop/0, init/5, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, drain_confirmed/1, fetch/2, ack/2, + tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, requeue/3, len/1, + is_empty/1, dropwhile/2, set_ram_duration_target/2, ram_duration/1, + needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, status/1]). + +%% ---------------------------------------------------------------------------- +%% This is a simple implementation of the rabbit_backing_queue +%% behavior, with all msgs in Mnesia. +%% +%% This will eventually be structured as a plug-in instead of an extra +%% module in the middle of the server tree.... +%% ---------------------------------------------------------------------------- + +%% ---------------------------------------------------------------------------- +%% This module wraps msgs into msg_status records for internal use, +%% including additional information. Pending acks are also recorded as +%% msg_status records. These are both stored in Mnesia. +%% +%% All queues are durable in this version, and all msgs are treated as +%% persistent. (This may break some clients and some tests for +%% non-durable queues.) +%% ---------------------------------------------------------------------------- + +%% BUG: The rabbit_backing_queue_spec behaviour needs improvement. For +%% example, there are points in the protocol where failures can lose +%% msgs. + +%% TODO: Need to provide better back-pressure when queue is filling up. + +%% BUG: Should not use mnesia:all_keys to count entries. + +%% BUG: p_records do not need a separate seq_id. + +%% TODO: Worry about dropping txn_dict upon failure. + +-behaviour(rabbit_backing_queue). + +%% The state record is the in-RAM AMQP queue state. It contains the +%% names of two Mnesia queues; the next_seq_id; and the AMQP +%% transaction dict (which can be dropped on a crash). + +-record(state, % The in-RAM queue state + { q_table, % The Mnesia queue table name + p_table, % The Mnesia pending-ack table name + next_seq_id, % The next M's seq_id + confirmed, % The set of msgs recently confirmed + txn_dict % In-progress txn->tx map + }). + +%% An msg_status record is a wrapper around a msg. It contains a +%% seq_id, assigned when the msg is published; the msg itself; the +%% msg's props, as presented by the client or as transformed by the +%% client; and an is-delivered flag, for reporting. + +-record(msg_status, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg + msg, % The msg itself + props, % The msg properties + is_delivered % Has the msg been delivered? (for reporting) + }). + +%% A TX record is the value stored in the txn_dict. It contains a list +%% of (msg, props) pairs to be published after the AMQP transaction, +%% in reverse order, and a list of seq_ids to ack after the AMQP +%% transaction, in any order. No other write-operations are allowed in +%% AMQP transactions, and the effects of these operations are not +%% visible to the client until after the AMQP transaction commits. + +-record(tx, + { to_pub, % List of (msg, props) pairs to publish + to_ack % List of seq_ids to ack + }). + +%% A Q record is a msg stored in the Q table in Mnesia. It is indexed +%% by the out-id, which orders msgs; and contains the msg_status +%% record itself. We push msg_status records with a new high seq_id, +%% and pop the msg_status record with the lowest seq_id. + +-record(q_record, % Q records in Mnesia + { seq_id, % The key: The seq_id + msg_status % The value: The msg_status record + }). + +%% A P record is a pending-ack stored in the P table in Mnesia. It is +%% indexed by the seq_id, and contains the msg_status record +%% itself. It is randomly accessed by seq_id. + +-record(p_record, % P records in Mnesia + { seq_id, % The key: The seq_id + msg_status % The value: The msg_status record + }). + +-include("rabbit.hrl"). + +%% ---------------------------------------------------------------------------- + +%% BUG: Restore -ifdef, -endif. + +%% -ifdef(use_specs). + +-type(maybe(T) :: nothing | {just, T}). + +-type(seq_id() :: non_neg_integer()). +-type(ack() :: seq_id()). + +-type(state() :: #state { q_table :: atom(), + p_table :: atom(), + next_seq_id :: seq_id(), + confirmed :: gb_set(), + txn_dict :: dict() }). + +-type(msg_status() :: #msg_status { msg :: rabbit_types:basic_message(), + seq_id :: seq_id(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). + +-type(tx() :: #tx { to_pub :: [pub()], + to_ack :: [seq_id()] }). + +-type(pub() :: { rabbit_types:basic_message(), + rabbit_types:message_properties() }). + +-include("rabbit_backing_queue_spec.hrl"). + +%% -endif. + +%% ---------------------------------------------------------------------------- +%% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here +%% for clarity. + +%% ---------------------------------------------------------------------------- +%% start/1 predicts that a list of (durable) queues will be started in +%% the near future. This lets us perform early checking of the +%% consistency of those queues, and initialize other shared +%% resources. These queues might not in fact be started, and other +%% queues might be started instead. It is ignored in this +%% implementation. +%% +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). + +start(_DurableQueues) -> ok. + +%% ---------------------------------------------------------------------------- +%% stop/0 tears down all state/resources upon shutdown. It might not +%% be called. It is ignored in this implementation. +%% +%% -spec(stop/0 :: () -> 'ok'). + +stop() -> ok. + +%% ---------------------------------------------------------------------------- +%% init/5 creates one backing queue, returning its state. Names are +%% local to the vhost, and must be unique. +%% +%% init/5 creates Mnesia transactions to run in, and therefore may not +%% be called from inside another Mnesia transaction. +%% +%% -spec(init/5 :: +%% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) +%% -> state()). + +%% BUG: We should allow clustering of the Mnesia tables. + +%% BUG: It's unfortunate that this can't all be done in a single +%% Mnesia transaction! + +init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> + {QTable, PTable} = tables(QueueName), + case Recover of + false -> _ = mnesia:delete_table(QTable), + _ = mnesia:delete_table(PTable); + true -> ok + end, + create_table(QTable, 'q_record', 'ordered_set', record_info(fields, + q_record)), + create_table(PTable, 'p_record', 'set', record_info(fields, p_record)), + {atomic, State} = + mnesia:transaction( + fun () -> + case IsDurable of + false -> clear_table(QTable), + clear_table(PTable); + true -> delete_nonpersistent_msgs(QTable) + end, + NextSeqId = case mnesia:first(QTable) of + '$end_of_table' -> 0; + SeqId -> SeqId + end, + #state { q_table = QTable, + p_table = PTable, + next_seq_id = NextSeqId, + confirmed = gb_sets:new(), + txn_dict = dict:new() } + end), + State. + +%% ---------------------------------------------------------------------------- +%% terminate/1 deletes all of a queue's pending acks, prior to +%% shutdown. Other calls might be made following terminate/1. +%% +%% terminate/1 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. +%% +%% -spec(terminate/1 :: (state()) -> state()). + +terminate(State = #state { q_table = QTable, p_table = PTable }) -> + {atomic, _} = mnesia:clear_table(PTable), + mnesia:dump_tables([QTable, PTable]), + State. + +%% ---------------------------------------------------------------------------- +%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and +%% pending acks, prior to shutdown. Other calls might be made +%% following delete_and_terminate/1. +%% +%% delete_and_terminate/1 creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(delete_and_terminate/1 :: (state()) -> state()). + +delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> + {atomic, _} = + mnesia:transaction(fun () -> clear_table(QTable), + clear_table(PTable) + end), + mnesia:dump_tables([QTable, PTable]), + State. + +%% ---------------------------------------------------------------------------- +%% purge/1 deletes all of queue's enqueued msgs, returning the count +%% of msgs purged. +%% +%% purge/1 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. +%% +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(State = #state { q_table = QTable }) -> + {atomic, Result} = + mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), + clear_table(QTable), + {LQ, State} + end), + Result. + +%% ---------------------------------------------------------------------------- +%% publish/3 publishes a msg. +%% +%% publish/3 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. +%% +%% -spec(publish/3 :: +%% (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +publish(Msg, Props, State) -> + {atomic, State1} = + mnesia:transaction( + fun () -> internal_publish(Msg, Props, false, State) end), + confirm([{Msg, Props}], State1). + +%% ---------------------------------------------------------------------------- +%% publish_delivered/4 is called after a msg has been passed straight +%% out to a client because the queue is empty. We update all state +%% (e.g., next_seq_id) as if we had in fact handled the msg. +%% +%% publish_delivered/4 creates an Mnesia transaction to run in, and +%% therefore may not be called from inside another Mnesia transaction. +%% +%% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {ack(), state()}; +%% (false, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {undefined, state()}). + +publish_delivered(false, Msg, Props, State) -> + {undefined, confirm([{Msg, Props}], State)}; +publish_delivered(true, + Msg, + Props, + State = #state { next_seq_id = SeqId }) -> + MsgStatus = #msg_status { seq_id = SeqId, + msg = Msg, + props = Props, + is_delivered = true }, + {atomic, State1} = + mnesia:transaction( + fun () -> + add_pending_ack(MsgStatus, State), + State #state { next_seq_id = SeqId + 1 } + end), + {SeqId, confirm([{Msg, Props}], State1)}. + +%% ---------------------------------------------------------------------------- +%% drain_confirmed/1 returns the ids of all of the messages that have +%% been confirmed since the last invocation of this function (or since +%% initialisation). +%% +%% -spec(drain_confirmed/1 :: (state()) -> {[rabbit_guid:guid()], state()}). + +drain_confirmed(State = #state { confirmed = Confirmed }) -> + {gb_sets:to_list(Confirmed), State #state { confirmed = gb_sets:new() }}. + +%% ---------------------------------------------------------------------------- +%% dropwhile/2 drops msgs from the head of the queue while there are +%% msgs and while the supplied predicate returns true. +%% +%% dropwhile/2 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. The +%% supplied Pred is called from inside the transaction, and therefore +%% may not call another function that creates an Mnesia transaction. +%% +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). + +dropwhile(Pred, State) -> + {atomic, Result} = + mnesia:transaction(fun () -> internal_dropwhile(Pred, State) end), + Result. + +%% ---------------------------------------------------------------------------- +%% fetch/2 produces the next msg, if any. +%% +%% fetch/2 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. +%% +%% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; +%% (false, state()) -> {fetch_result(undefined), state()}). + +fetch(AckRequired, State) -> + {atomic, Result} = + mnesia:transaction(fun () -> internal_fetch(AckRequired, State) end), + Result. + +%% ---------------------------------------------------------------------------- +%% ack/2 acknowledges msgs named by SeqIds. +%% +%% ack/2 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. +%% +%% -spec(ack/2 :: ([ack()], state()) -> state()). + +ack(SeqIds, State) -> + {atomic, Result} = + mnesia:transaction(fun () -> internal_ack(SeqIds, State) end), + Result. + +%% ---------------------------------------------------------------------------- +%% tx_publish/4 records a pending publish within an AMQP +%% transaction. It stores the msg and its properties in the to_pub +%% field of the txn, waiting to be committed. +%% +%% -spec(tx_publish/4 :: +%% (rabbit_types:txn(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), + State #state { + txn_dict = + store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, TxnDict) }. + +%% ---------------------------------------------------------------------------- +%% tx_ack/3 records pending acks within an AMQP transaction. It stores +%% the seq_id in the acks field of the txn, waiting to be committed. +%% +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). + +tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), + State #state { + txn_dict = + store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, TxnDict) }. + +%% ---------------------------------------------------------------------------- +%% tx_rollback/2 aborts a pending AMQP transaction. +%% +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + +tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> + #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), + {SeqIds, State #state { txn_dict = erase_tx(Txn, TxnDict) }}. + +%% ---------------------------------------------------------------------------- +%% tx_commit/4 commits a pending AMQP transaction. The F passed in is +%% called once the msgs have really been commited (which does not +%% matter here). +%% +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), +%% fun (() -> any()), +%% message_properties_transformer(), +%% state()) +%% -> {[ack()], state()}). + +tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), + F(), + State1 = internal_tx_commit( + Pubs, + SeqIds, + PropsF, + State #state { txn_dict = erase_tx(Txn, TxnDict) }), + {SeqIds, confirm(Pubs, State1)}. + +%% ---------------------------------------------------------------------------- +%% requeue/3 reinserts msgs into the queue that have already been +%% delivered and were pending acknowledgement. +%% +%% requeue/3 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. +%% +%% -spec(requeue/3 :: +%% ([ack()], message_properties_transformer(), state()) -> state()). + +requeue(SeqIds, PropsF, State) -> + {atomic, Result} = + mnesia:transaction( + fun () -> del_pending_acks( + fun (#msg_status { msg = Msg, props = Props }, S) -> + internal_publish( + Msg, PropsF(Props), true, S) + end, + SeqIds, + State) + end), + Result. + +%% ---------------------------------------------------------------------------- +%% len/1 returns the queue length. (The queue length is computed on +%% demand, since it may change due to external actions.) +%% +%% len/1 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. +%% +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(#state { q_table = QTable }) -> + {atomic, Result} = + mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), + Result. + +%% ---------------------------------------------------------------------------- +%% is_empty/1 returns true iff the queue is empty. +%% +%% is_empty/1 creates an Mnesia transaction to run in, and therefore +%% may not be called from inside another Mnesia transaction. +%% +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(#state { q_table = QTable }) -> + {atomic, Result} = + mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), + Result. + +%% ---------------------------------------------------------------------------- +%% set_ram_duration_target informs us that the target is to have no +%% more msgs in RAM than indicated by the duration and the current +%% queue rates. It is ignored in this implementation. +%% +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) +%% -> state()). + +set_ram_duration_target(_, State) -> State. + +%% ---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the msgs in RAM represent given the current rates of the +%% queue. It is a dummy in this implementation. +%% +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). + +ram_duration(State) -> {0, State}. + +%% ---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns true iff idle_timeout should be called +%% as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires). It always returns false in this +%% implementation. +%% +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +needs_idle_timeout(_) -> false. + +%% ---------------------------------------------------------------------------- +%% idle_timeout/1 is called (eventually) after needs_idle_timeout +%% returns true. It is a dummy in this implementation. +%% +%% -spec(idle_timeout/1 :: (state()) -> state()). + +idle_timeout(State) -> State. + +%% ---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. It is a dummy in this implementation. +%% +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). + +handle_pre_hibernate(State) -> State. + +%% ---------------------------------------------------------------------------- +%% status/1 exists for debugging and operational purposes, to be able +%% to expose state via rabbitmqctl. +%% +%% status/1 creates an Mnesia transaction to run in, and therefore may +%% not be called from inside another Mnesia transaction. +%% +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(#state { q_table = QTable, + p_table = PTable, + next_seq_id = NextSeqId }) -> + {atomic, Result} = + mnesia:transaction( + fun () -> LQ = length(mnesia:all_keys(QTable)), + LP = length(mnesia:all_keys(PTable)), + [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] + end), + Result. + +%% ---------------------------------------------------------------------------- +%% Monadic helper functions for inside transactions. +%% ---------------------------------------------------------------------------- + +-spec create_table(atom(), atom(), atom(), [atom()]) -> ok. + +create_table(Table, RecordName, Type, Attributes) -> + case mnesia:create_table(Table, [{record_name, RecordName}, + {type, Type}, + {attributes, Attributes}, + {ram_copies, [node()]}]) of + {atomic, ok} -> ok; + {aborted, {already_exists, Table}} -> + RecordName = mnesia:table_info(Table, record_name), + Type = mnesia:table_info(Table, type), + Attributes = mnesia:table_info(Table, attributes), + ok + end. + +%% Like mnesia:clear_table, but within an Mnesia transaction. + +%% BUG: The write-set of the transaction may be huge if the table is +%% huge. Then again, this might not bother Mnesia. + +-spec clear_table(atom()) -> ok. + +clear_table(Table) -> + case mnesia:first(Table) of + '$end_of_table' -> ok; + Key -> mnesia:delete(Table, Key, 'write'), + clear_table(Table) + end. + +%% Delete non-persistent msgs after a restart. + +-spec delete_nonpersistent_msgs(atom()) -> ok. + +delete_nonpersistent_msgs(QTable) -> + lists:foreach( + fun (Key) -> + [#q_record { seq_id = Key, msg_status = MsgStatus }] = + mnesia:read(QTable, Key, 'read'), + case MsgStatus of + #msg_status { msg = #basic_message { + is_persistent = true }} -> ok; + _ -> mnesia:delete(QTable, Key, 'write') + end + end, + mnesia:all_keys(QTable)). + +%% internal_fetch/2 fetches the next msg, if any, inside an Mnesia +%% transaction, generating a pending ack as necessary. + +-spec(internal_fetch(true, state()) -> fetch_result(ack()); + (false, state()) -> fetch_result(undefined)). + +internal_fetch(AckRequired, State) -> + case q_pop(State) of + nothing -> empty; + {just, MsgStatus} -> post_pop(AckRequired, MsgStatus, State) + end. + +-spec internal_tx_commit([pub()], + [seq_id()], + message_properties_transformer(), + state()) -> + state(). + +internal_tx_commit(Pubs, SeqIds, PropsF, State) -> + State1 = internal_ack(SeqIds, State), + lists:foldl( + fun ({Msg, Props}, S) -> + internal_publish(Msg, PropsF(Props), false, S) + end, + State1, + lists:reverse(Pubs)). + +-spec internal_publish(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). + +internal_publish(Msg, + Props, + IsDelivered, + State = #state { q_table = QTable, next_seq_id = SeqId }) -> + MsgStatus = #msg_status { + seq_id = SeqId, + msg = Msg, + props = Props, + is_delivered = IsDelivered }, + mnesia:write( + QTable, #q_record { seq_id = SeqId, msg_status = MsgStatus }, 'write'), + State #state { next_seq_id = SeqId + 1 }. + +-spec(internal_ack/2 :: ([seq_id()], state()) -> state()). + +internal_ack(SeqIds, State) -> + del_pending_acks(fun (_, S) -> S end, SeqIds, State). + +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), state()) + -> state()). + +internal_dropwhile(Pred, State) -> + case q_peek(State) of + nothing -> State; + {just, MsgStatus = #msg_status { props = Props }} -> + case Pred(Props) of + true -> _ = q_pop(State), + _ = post_pop(false, MsgStatus, State), + internal_dropwhile(Pred, State); + false -> State + end + end. + +%% q_pop pops a msg, if any, from the Q table in Mnesia. + +-spec q_pop(state()) -> maybe(msg_status()). + +q_pop(#state { q_table = QTable }) -> + case mnesia:first(QTable) of + '$end_of_table' -> nothing; + SeqId -> [#q_record { seq_id = SeqId, msg_status = MsgStatus }] = + mnesia:read(QTable, SeqId, 'read'), + mnesia:delete(QTable, SeqId, 'write'), + {just, MsgStatus} + end. + +%% q_peek returns the first msg, if any, from the Q table in +%% Mnesia. + +-spec q_peek(state()) -> maybe(msg_status()). + +q_peek(#state { q_table = QTable }) -> + case mnesia:first(QTable) of + '$end_of_table' -> nothing; + SeqId -> [#q_record { seq_id = SeqId, msg_status = MsgStatus }] = + mnesia:read(QTable, SeqId, 'read'), + {just, MsgStatus} + end. + +%% post_pop operates after q_pop, calling add_pending_ack if necessary. + +-spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; + (false, msg_status(), state()) -> + {fetch_result(undefined), state()}). + +post_pop(true, + MsgStatus = #msg_status { + seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + State = #state { q_table = QTable }) -> + LQ = length(mnesia:all_keys(QTable)), + add_pending_ack(MsgStatus #msg_status { is_delivered = true }, State), + {Msg, IsDelivered, SeqId, LQ}; +post_pop(false, + #msg_status { msg = Msg, is_delivered = IsDelivered }, + #state { q_table = QTable }) -> + LQ = length(mnesia:all_keys(QTable)), + {Msg, IsDelivered, undefined, LQ}. + +%% add_pending_ack adds a pending ack to the P table in Mnesia. + +-spec add_pending_ack(msg_status(), state()) -> ok. + +add_pending_ack(MsgStatus = #msg_status { seq_id = SeqId }, + #state { p_table = PTable }) -> + mnesia:write(PTable, + #p_record { seq_id = SeqId, msg_status = MsgStatus }, + 'write'), + ok. + +%% del_pending_acks deletes some set of pending acks from the P table +%% in Mnesia, applying a (Mnesia transactional) function F after each +%% msg is deleted. + +-spec del_pending_acks(fun ((msg_status(), state()) -> state()), + [seq_id()], + state()) -> + state(). + +del_pending_acks(F, SeqIds, State = #state { p_table = PTable }) -> + lists:foldl( + fun (SeqId, S) -> + [#p_record { msg_status = MsgStatus }] = + mnesia:read(PTable, SeqId, 'read'), + mnesia:delete(PTable, SeqId, 'write'), + F(MsgStatus, S) + end, + State, + SeqIds). + +%% ---------------------------------------------------------------------------- +%% Pure helper functions. +%% ---------------------------------------------------------------------------- + +%% Convert a queue name (a record) into its Mnesia table names (atoms). + +%% TODO: Import correct argument type. + +%% BUG: Mnesia has undocumented restrictions on table names. Names +%% with slashes fail some operations, so we eliminate slashes. We +%% should extend this as necessary, and perhaps make it a little +%% prettier. + +-spec tables({resource, binary(), queue, binary()}) -> {atom(), atom()}. + +tables({resource, VHost, queue, Name}) -> + VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), + Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), + Str = lists:flatten(io_lib:format("~999999999p", [{VHost2, Name2}])), + {list_to_atom("q" ++ Str), list_to_atom("p" ++ Str)}. + +-spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). + +lookup_tx(Txn, TxnDict) -> + case dict:find(Txn, TxnDict) of + error -> #tx { to_pub = [], to_ack = [] }; + {ok, Tx} -> Tx + end. + +-spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). + +store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). + +-spec erase_tx(rabbit_types:txn(), dict()) -> dict(). + +erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). + +%% ---------------------------------------------------------------------------- +%% Internal plumbing for confirms (aka publisher acks) +%% ---------------------------------------------------------------------------- + +%% confirm/1 records confirmed messages. + +-spec confirm([pub()], state()) -> state(). + +confirm(Pubs, State = #state { confirmed = Confirmed }) -> + MsgIds = + [MsgId || {#basic_message { id = MsgId }, + #message_properties { needs_confirming = true }} <- Pubs], + case MsgIds of + [] -> State; + _ -> State #state { + confirmed = + gb_sets:union(Confirmed, gb_sets:from_list(MsgIds)) } + end. + diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl new file mode 100644 index 00000000..6f8cc9c2 --- /dev/null +++ b/src/rabbit_ram_queue.erl @@ -0,0 +1,564 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. +%% + +-module(rabbit_ram_queue). + +-export( + [start/1, stop/0, init/5, terminate/1, delete_and_terminate/1, purge/1, + publish/3, publish_delivered/4, drain_confirmed/1, fetch/2, ack/2, + tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, requeue/3, len/1, + is_empty/1, dropwhile/2, set_ram_duration_target/2, ram_duration/1, + needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, status/1]). + +%% ---------------------------------------------------------------------------- +%% This is a simple implementation of the rabbit_backing_queue +%% behavior, with all msgs in RAM. +%% +%% This will eventually be structured as a plug-in instead of an extra +%% module in the middle of the server tree.... +%% ---------------------------------------------------------------------------- + +%% ---------------------------------------------------------------------------- +%% This module wraps msgs into msg_status records for internal use, +%% including additional information. Pending acks are also recorded as +%% msg_status records. +%% +%% All queues are non-durable in this version, and all msgs are +%% treated as non-persistent. (This may break some clients and some +%% tests for durable queues, but it also keeps some tests from +%% breaking the test apparatus.) +%% ---------------------------------------------------------------------------- + +%% TODO: Need to provide better back-pressure when queue is filling up. + +-behaviour(rabbit_backing_queue). + +%% The state record is the in-RAM AMQP queue state. It contains the +%% queue of msg_status records; the next_seq_id; and the AMQP +%% transaction dict. + +-record(state, % The in-RAM queue state + { q, % The queue of msg_status records + q_len, % queue:len of q + pending_acks, % The seq_id->msg_status map of pending acks + next_seq_id, % The next msg_status record's seq_id + confirmed, % The set of msgs recently confirmed + txn_dict % In-progress txn->tx map + }). + +%% An msg_status record is a wrapper around a msg. It contains a +%% seq_id, assigned when the msg is published; the msg itself; the +%% msg's props, as presented by the client or as transformed by the +%% client; and an is-delivered flag, for reporting. + +-record(msg_status, % A wrapper aroung a msg + { seq_id, % The seq_id for the msg + msg, % The msg itself + props, % The msg properties + is_delivered % Has the msg been delivered? (for reporting) + }). + +%% A TX record is the value stored in the txn_dict. It contains a list +%% of (msg, props) pairs to be published after the AMQP transaction, +%% in reverse order, and a list of seq_ids to ack after the AMQP +%% transaction, in any order. No other write-operations are allowed in +%% AMQP transactions, and the effects of these operations are not +%% visible to the client until after the AMQP transaction commits. + +-record(tx, + { to_pub, % List of (msg, props) pairs to publish + to_ack % List of seq_ids to ack + }). + +-include("rabbit.hrl"). + +%% ---------------------------------------------------------------------------- + +%% BUG: Restore -ifdef, -endif. + +%% -ifdef(use_specs). + +-type(seq_id() :: non_neg_integer()). +-type(ack() :: seq_id()). + +-type(state() :: #state { q :: queue(), + q_len :: non_neg_integer(), + pending_acks :: dict(), + next_seq_id :: seq_id(), + confirmed :: gb_set(), + txn_dict :: dict() }). + +-type(msg_status() :: + #msg_status { seq_id :: seq_id(), + msg :: rabbit_types:basic_message(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). + +-type(tx() :: #tx { to_pub :: [pub()], + to_ack :: [seq_id()] }). + +-type(pub() :: { rabbit_types:basic_message(), + rabbit_types:message_properties() }). + +-include("rabbit_backing_queue_spec.hrl"). + +%% -endif. + +%% ---------------------------------------------------------------------------- +%% Public API +%% +%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here +%% for clarity. + +%% ---------------------------------------------------------------------------- +%% start/1 predicts that a list of (durable) queues will be started in +%% the near future. This lets us perform early checking of the +%% consistency of those queues, and initialize other shared +%% resources. These queues might not in fact be started, and other +%% queues might be started instead. It is ignored in this +%% implementation. +%% +%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). + +start(_DurableQueues) -> ok. + +%% ---------------------------------------------------------------------------- +%% stop/0 tears down all queue state/resources upon shutdown. It might +%% not be called. It is ignored in this implementation. +%% +%% -spec(stop/0 :: () -> 'ok'). + +stop() -> ok. + +%% ---------------------------------------------------------------------------- +%% init/5 creates one backing queue, returning its state. Names are +%% local to the vhost, and must be unique. +%% +%% -spec(init/5 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery(), +%% async_callback(), sync_callback()) -> state()). + +init(_QueueName, _IsDurable, _Recover, _asyncCallback, _SyncCallback) -> + #state { q = queue:new(), + q_len = 0, + pending_acks = dict:new(), + next_seq_id = 0, + confirmed = gb_sets:new(), + txn_dict = dict:new() }. + +%% ---------------------------------------------------------------------------- +%% terminate/1 deletes all of a queue's pending acks, prior to +%% shutdown. Other calls might be made following terminate/1. +%% +%% -spec(terminate/1 :: (state()) -> state()). + +terminate(State) -> State #state { pending_acks = dict:new() }. + +%% ---------------------------------------------------------------------------- +%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and +%% pending acks, prior to shutdown. Other calls might be made +%% following delete_and_terminate/1. +%% +%% -spec(delete_and_terminate/1 :: (state()) -> state()). + +delete_and_terminate(State) -> + State #state { q = queue:new(), q_len = 0, pending_acks = dict:new() }. + +%% ---------------------------------------------------------------------------- +%% purge/1 deletes all of queue's enqueued msgs, returning the count +%% of msgs purged. +%% +%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). + +purge(State = #state { q_len = QLen }) -> + {QLen, State #state { q = queue:new(), q_len = 0 }}. + +%% ---------------------------------------------------------------------------- +%% publish/3 publishes a msg. +%% +%% -spec(publish/3 :: +%% (rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +publish(Msg, Props, State) -> + State1 = internal_publish(Msg, Props, false, State), + confirm([{Msg, Props}], State1). + +%% ---------------------------------------------------------------------------- +%% publish_delivered/4 is called after a msg has been passed straight +%% out to a client because the queue is empty. We update all state +%% (e.g., next_seq_id) as if we had in fact handled the msg. +%% +%% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {ack(), state()}; +%% (false, rabbit_types:basic_message(), +%% rabbit_types:message_properties(), state()) +%% -> {undefined, state()}). + +publish_delivered(false, Msg, Props, State) -> + {undefined, confirm([{Msg, Props}], State)}; +publish_delivered(true, + Msg, + Props, + State = #state { next_seq_id = SeqId, + pending_acks = PendingAcks }) -> + MsgStatus = #msg_status { seq_id = SeqId, + msg = Msg, + props = Props, + is_delivered = true }, + State1 = State #state { + next_seq_id = SeqId + 1, + pending_acks = dict:store(SeqId, MsgStatus, PendingAcks) }, + {SeqId, confirm([{Msg, Props}], State1)}. + +%%----------------------------------------------------------------------------- +%% drain_confirmed/1 returns the ids of all of the messages that have +%% been confirmed since the last invocation of this function (or since +%% initialisation). +%% +%% -spec(drain_confirmed/1 :: (state()) -> {[rabbit_guid:guid()], state()}). + +drain_confirmed(State = #state { confirmed = Confirmed }) -> + {gb_sets:to_list(Confirmed), State #state { confirmed = gb_sets:new() }}. + +%% ---------------------------------------------------------------------------- +%% dropwhile/2 drops msgs from the head of the queue while there are +%% msgs and while the supplied predicate returns true. +%% +%% The only current use of dropwhile/1 is to drop expired messages +%% from the head of the queue. +%% +%% -spec(dropwhile/2 :: +%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) +%% -> state()). + +dropwhile(Pred, State) -> internal_dropwhile(Pred, State). + +%% ---------------------------------------------------------------------------- +%% fetch/2 produces the next msg, if any. +%% +%% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; +%% (false, state()) -> {fetch_result(undefined), state()}). + +fetch(AckRequired, State) -> internal_fetch(AckRequired, State). + +%% ---------------------------------------------------------------------------- +%% ack/2 acknowledges msgs named by SeqIds. +%% +%% -spec(ack/2 :: ([ack()], state()) -> state()). + +ack(SeqIds, State) -> internal_ack(SeqIds, State). + +%% ---------------------------------------------------------------------------- +%% tx_publish/4 records a pending publish within an AMQP +%% transaction. It stores the msg and its properties in the to_pub +%% field of the txn, waiting to be committed. +%% +%% -spec(tx_publish/4 :: +%% (rabbit_types:txn(), +%% rabbit_types:basic_message(), +%% rabbit_types:message_properties(), +%% state()) +%% -> state()). + +tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> + Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), + State #state { + txn_dict = + store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, TxnDict) }. + +%% ---------------------------------------------------------------------------- +%% tx_ack/3 records pending acks within an AMQP transaction. It stores +%% the seq_id in the acks field of the txn, waiting to be committed. +%% +%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). + +tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> + Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), + State #state { + txn_dict = + store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, TxnDict) }. + +%% ---------------------------------------------------------------------------- +%% tx_rollback/2 aborts a pending AMQP transaction. +%% +%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). + +tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> + #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), + {SeqIds, State #state { txn_dict = erase_tx(Txn, TxnDict) }}. + +%% ---------------------------------------------------------------------------- +%% tx_commit/4 commits a pending AMQP transaction. The F passed in is +%% called once the msgs have really been commited (which does not +%% matter here). +%% +%% -spec(tx_commit/4 :: +%% (rabbit_types:txn(), +%% fun (() -> any()), +%% message_properties_transformer(), +%% state()) +%% -> {[ack()], state()}). + +tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> + #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), + F(), + State1 = internal_tx_commit( + Pubs, + SeqIds, + PropsF, + State #state { txn_dict = erase_tx(Txn, TxnDict) }), + {SeqIds, confirm(Pubs, State1)}. + +%% ---------------------------------------------------------------------------- +%% requeue/3 reinserts msgs into the queue that have already been +%% delivered and were pending acknowledgement. +%% +%% -spec(requeue/3 :: +%% ([ack()], message_properties_transformer(), state()) -> state()). + +requeue(SeqIds, PropsF, State) -> + del_pending_acks( + fun (#msg_status { msg = Msg, props = Props }, S) -> + internal_publish(Msg, PropsF(Props), true, S) + end, + SeqIds, + State). + +%% ---------------------------------------------------------------------------- +%% len/1 returns the current queue length. (The queue length is +%% maintained internally instead of being computed on demand, since +%% the rabbit_amqqueue_process module calls len/1 so frequently.) +%% +%% -spec(len/1 :: (state()) -> non_neg_integer()). + +len(#state { q_len = QLen }) -> QLen. + +%% ---------------------------------------------------------------------------- +%% is_empty/1 returns true iff the queue is empty. +%% +%% -spec(is_empty/1 :: (state()) -> boolean()). + +is_empty(#state { q_len = QLen }) -> QLen == 0. + +%% ---------------------------------------------------------------------------- +%% set_ram_duration_target informs us that the target is to have no +%% more msgs in RAM than indicated by the duration and the current +%% queue rates. It is ignored in this implementation. +%% +%% -spec(set_ram_duration_target/2 :: +%% (('undefined' | 'infinity' | number()), state()) +%% -> state()). + +set_ram_duration_target(_, State) -> State. + +%% ---------------------------------------------------------------------------- +%% ram_duration/1 optionally recalculates the duration internally +%% (likely to be just update your internal rates), and report how many +%% seconds the msgs in RAM represent given the current rates of the +%% queue. It is a dummy in this implementation. +%% +%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). + +ram_duration(State) -> {0, State}. + +%% ---------------------------------------------------------------------------- +%% needs_idle_timeout/1 returns true iff idle_timeout should be called +%% as soon as the queue process can manage (either on an empty +%% mailbox, or when a timer fires). It always returns false in this +%% implementation. +%% +%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). + +needs_idle_timeout(_) -> false. + +%% ---------------------------------------------------------------------------- +%% idle_timeout/1 is called (eventually) after needs_idle_timeout +%% returns true. It is a dummy in this implementation. +%% +%% -spec(idle_timeout/1 :: (state()) -> state()). + +idle_timeout(State) -> State. + +%% ---------------------------------------------------------------------------- +%% handle_pre_hibernate/1 is called immediately before the queue +%% hibernates. It is a dummy in this implementation. +%% +%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). + +handle_pre_hibernate(State) -> State. + +%% ---------------------------------------------------------------------------- +%% status/1 exists for debugging and operational purposes, to be able +%% to expose state via rabbitmqctl. +%% +%% -spec(status/1 :: (state()) -> [{atom(), any()}]). + +status(#state { q_len = QLen, + pending_acks = PendingAcks, + next_seq_id = NextSeqId }) -> + [{len, QLen}, {next_seq_id, NextSeqId}, {acks, dict:size(PendingAcks)}]. + +%% ---------------------------------------------------------------------------- +%% Helper functions. +%% ---------------------------------------------------------------------------- + +%% internal_fetch/2 fetches the next msg, if any, generating a pending +%% ack as necessary. + +-spec(internal_fetch(true, state()) -> {fetch_result(ack()), state()}; + (false, state()) -> {fetch_result(undefined), state()}). + +internal_fetch(AckRequired, State = #state { q = Q, q_len = QLen }) -> + case queue:out(Q) of + {empty, _} -> {empty, State}; + {{value, MsgStatus}, Q1} -> + post_pop(AckRequired, + MsgStatus, + State #state { q = Q1, q_len = QLen - 1 }) + end. + +-spec internal_tx_commit([pub()], + [seq_id()], + message_properties_transformer(), + state()) -> + state(). + +internal_tx_commit(Pubs, SeqIds, PropsF, State) -> + State1 = internal_ack(SeqIds, State), + lists:foldl( + fun ({Msg, Props}, S) -> + internal_publish(Msg, PropsF(Props), false, S) + end, + State1, + lists:reverse(Pubs)). + +-spec internal_publish(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). + +internal_publish(Msg, + Props, + IsDelivered, + State = + #state { q = Q, q_len = QLen, next_seq_id = SeqId }) -> + MsgStatus = #msg_status { + seq_id = SeqId, msg = Msg, props = Props, is_delivered = IsDelivered }, + State #state { q = queue:in(MsgStatus, Q), + q_len = QLen + 1, + next_seq_id = SeqId + 1 }. + +-spec(internal_ack/2 :: ([seq_id()], state()) -> state()). + +internal_ack(SeqIds, State) -> + del_pending_acks(fun (_, S) -> S end, SeqIds, State). + +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), state()) + -> state()). + +internal_dropwhile(Pred, State = #state { q = Q, q_len = QLen }) -> + case queue:out(Q) of + {empty, _} -> State; + {{value, MsgStatus = #msg_status { props = Props }}, Q1} -> + case Pred(Props) of + true -> State1 = State #state { q = Q1, q_len = QLen - 1 }, + {_, State2} = post_pop(false, MsgStatus, State1), + internal_dropwhile(Pred, State2); + false -> State + end + end. + +%% post_pop operates after popping a msg_status from the queue, +%% adding a pending ack if necessary. + +-spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; + (false, msg_status(), state()) -> + {fetch_result(undefined), state()}). + +post_pop(true, + MsgStatus = #msg_status { + seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + State = #state { q_len = QLen, pending_acks = PendingAcks }) -> + MsgStatus1 = MsgStatus #msg_status { is_delivered = true }, + {{Msg, IsDelivered, SeqId, QLen}, + State #state { + pending_acks = dict:store(SeqId, MsgStatus1, PendingAcks) }}; +post_pop(false, + #msg_status { msg = Msg, is_delivered = IsDelivered }, + State = #state { q_len = QLen }) -> + {{Msg, IsDelivered, undefined, QLen}, State}. + +%% del_pending_acks deletes some set of pending acks from the +%% pending_acks dict, applying a function F after each msg is deleted. + +-spec del_pending_acks(fun ((msg_status(), state()) -> state()), + [seq_id()], + state()) -> + state(). + +del_pending_acks(F, SeqIds, State) -> + lists:foldl( + fun (SeqId, S = #state { pending_acks = PendingAcks }) -> + MsgStatus = dict:fetch(SeqId, PendingAcks), + F(MsgStatus, + S #state { pending_acks = dict:erase(SeqId, PendingAcks) }) + end, + State, + SeqIds). + +%% ---------------------------------------------------------------------------- +%% Pure helper functions. +%% ---------------------------------------------------------------------------- + +-spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). + +lookup_tx(Txn, TxnDict) -> case dict:find(Txn, TxnDict) of + error -> #tx { to_pub = [], to_ack = [] }; + {ok, Tx} -> Tx + end. + +-spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). + +store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). + +-spec erase_tx(rabbit_types:txn(), dict()) -> dict(). + +erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). + +%% ---------------------------------------------------------------------------- +%% Internal plumbing for confirms (aka publisher acks) +%% ---------------------------------------------------------------------------- + +%% confirm/1 records confirmed messages. + +-spec confirm([pub()], state()) -> state(). + +confirm(Pubs, State = #state { confirmed = Confirmed }) -> + MsgIds = + [MsgId || {#basic_message { id = MsgId }, + #message_properties { needs_confirming = true }} <- Pubs], + case MsgIds of + [] -> State; + _ -> State #state { + confirmed = + gb_sets:union(Confirmed, gb_sets:from_list(MsgIds)) } + end. + -- cgit v1.2.1 From 4a1d115af72ef59c6beee94565a3e0f75859c289 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Wed, 23 Mar 2011 20:26:07 -0700 Subject: Most changes; most tests pass. --- src/rabbit_disk_queue.erl | 39 ++++++++++++++------------ src/rabbit_mnesia_queue.erl | 68 ++++++++++++++++++++++++--------------------- src/rabbit_ram_queue.erl | 4 +-- 3 files changed, 59 insertions(+), 52 deletions(-) diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl index 2593d9e9..8a7881e9 100644 --- a/src/rabbit_disk_queue.erl +++ b/src/rabbit_disk_queue.erl @@ -212,7 +212,9 @@ terminate(State) -> State #state { pending_acks = dict:new() }. %% -spec(delete_and_terminate/1 :: (state()) -> state()). delete_and_terminate(State = #state { q_file_names = QFileNames }) -> - lists:foreach(fun file:delete/1, queue:to_list(QFileNames)), + lists:foreach( + fun (filename) -> ok = file:delete(filename) end, + queue:to_list(QFileNames)), State #state { q0 = queue:new(), q0_len = 0, q_file_names = queue:new(), @@ -228,7 +230,9 @@ delete_and_terminate(State = #state { q_file_names = QFileNames }) -> %% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). purge(State = #state { q_file_names = QFileNames }) -> - lists:foreach(fun file:delete/1, queue:to_list(QFileNames)), + lists:foreach( + fun (filename) -> ok = file:delete(filename) end, + queue:to_list(QFileNames)), {internal_len(State), State #state { q0 = queue:new(), q0_len = 0, @@ -551,7 +555,7 @@ internal_dropwhile(Pred, State) -> post_pop(true, MsgStatus = #msg_status { - seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, State = #state { pending_acks = PendingAcks }) -> MsgStatus1 = MsgStatus #msg_status { is_delivered = true }, {{Msg, IsDelivered, SeqId, internal_len(State)}, @@ -599,10 +603,11 @@ push_q0(State = #state { dir = Dir, if Q0Len < ?FILE_BATCH_SIZE -> State; true -> FileName = Dir ++ "/" ++ integer_to_list(FileId), - Worker ! {write_behind, FileName, term_to_binary(Q0)}, + _ = (Worker ! {write_behind, FileName, term_to_binary(Q0)}), case queue:is_empty(QFileNames) of true -> - Worker ! {read_ahead, FileName }; + _ = (Worker ! {read_ahead, FileName }), + ok; false -> ok end, State #state { next_file_id = FileId + 1, @@ -626,14 +631,12 @@ pull_q1(State = #state { q0 = Q0, if Q1Len > 0 -> State; QFileNamesLen > 0 -> {{value, FileName}, QFileNames1} = queue:out(QFileNames), - Worker ! {read, FileName}, - receive - {binary, Binary} -> - ok - end, + _ = (Worker ! {read, FileName}), + receive {binary, Binary} -> ok end, case queue:out(QFileNames1) of {{value, FileName1}, _} -> - Worker ! {read_ahead, FileName1}; + _ = (Worker ! {read_ahead, FileName1}), + ok; _ -> ok end, State #state { q_file_names = QFileNames1, @@ -707,8 +710,8 @@ confirm(Pubs, State = #state { confirmed = Confirmed }) -> end. %% ---------------------------------------------------------------------------- -%% Background worker process for speeding up demo, currently with no -%% mechanisms for shutdown +%% Background worker process (non-OTP) for speeding up demo by about +%% 10%, currently with no mechanism for shutdown %% ---------------------------------------------------------------------------- -spec spawn_worker() -> pid(). @@ -716,19 +719,19 @@ confirm(Pubs, State = #state { confirmed = Confirmed }) -> spawn_worker() -> Parent = self(), spawn(fun() -> worker(Parent, nothing) end). --spec worker(pid(), maybe({string(), binary()})) -> none(). +-spec worker(pid(), maybe({string(), binary()})) -> no_return(). -worker(Parent, State) -> +worker(Parent, Contents) -> receive {write_behind, FileName, Binary} -> ok = file:write_file(FileName, Binary), - worker(Parent, State); + worker(Parent, Contents); {read_ahead, FileName} -> {ok, Binary} = file:read_file(FileName), ok = file:delete(FileName), worker(Parent, {just, {FileName, Binary}}); {read, FileName} -> - {just, {FileName, Binary}} = State, - Parent ! {binary, Binary}, + {just, {FileName, Binary}} = Contents, + (Parent ! {binary, Binary}), worker(Parent, nothing) end. diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 4a4040fa..9583f0e3 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -189,8 +189,8 @@ stop() -> ok. init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> {QTable, PTable} = tables(QueueName), case Recover of - false -> _ = mnesia:delete_table(QTable), - _ = mnesia:delete_table(PTable); + false -> {atomic, ok} = mnesia:delete_table(QTable), + {atomic, ok} = mnesia:delete_table(PTable); true -> ok end, create_table(QTable, 'q_record', 'ordered_set', record_info(fields, @@ -211,7 +211,7 @@ init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> #state { q_table = QTable, p_table = PTable, next_seq_id = NextSeqId, - confirmed = gb_sets:new(), + confirmed = gb_sets:new(), txn_dict = dict:new() } end), State. @@ -226,8 +226,8 @@ init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> %% -spec(terminate/1 :: (state()) -> state()). terminate(State = #state { q_table = QTable, p_table = PTable }) -> - {atomic, _} = mnesia:clear_table(PTable), - mnesia:dump_tables([QTable, PTable]), + {atomic, ok} = mnesia:clear_table(PTable), + {atomic, ok} = mnesia:dump_tables([QTable, PTable]), State. %% ---------------------------------------------------------------------------- @@ -245,7 +245,7 @@ delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> mnesia:transaction(fun () -> clear_table(QTable), clear_table(PTable) end), - mnesia:dump_tables([QTable, PTable]), + {atomic, ok} = mnesia:dump_tables([QTable, PTable]), State. %% ---------------------------------------------------------------------------- @@ -301,9 +301,9 @@ publish(Msg, Props, State) -> publish_delivered(false, Msg, Props, State) -> {undefined, confirm([{Msg, Props}], State)}; publish_delivered(true, - Msg, - Props, - State = #state { next_seq_id = SeqId }) -> + Msg, + Props, + State = #state { next_seq_id = SeqId }) -> MsgStatus = #msg_status { seq_id = SeqId, msg = Msg, props = Props, @@ -354,9 +354,9 @@ dropwhile(Pred, State) -> %% (false, state()) -> {fetch_result(undefined), state()}). fetch(AckRequired, State) -> - {atomic, Result} = + {atomic, FetchResult} = mnesia:transaction(fun () -> internal_fetch(AckRequired, State) end), - Result. + {FetchResult, State}. %% ---------------------------------------------------------------------------- %% ack/2 acknowledges msgs named by SeqIds. @@ -424,12 +424,15 @@ tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), + {atomic, State1} = mnesia:transaction( + fun () -> + internal_tx_commit( + Pubs, + SeqIds, + PropsF, + State #state { txn_dict = erase_tx(Txn, TxnDict) }) + end), F(), - State1 = internal_tx_commit( - Pubs, - SeqIds, - PropsF, - State #state { txn_dict = erase_tx(Txn, TxnDict) }), {SeqIds, confirm(Pubs, State1)}. %% ---------------------------------------------------------------------------- @@ -578,7 +581,7 @@ create_table(Table, RecordName, Type, Attributes) -> clear_table(Table) -> case mnesia:first(Table) of '$end_of_table' -> ok; - Key -> mnesia:delete(Table, Key, 'write'), + Key -> ok = mnesia:delete(Table, Key, 'write'), clear_table(Table) end. @@ -594,7 +597,7 @@ delete_nonpersistent_msgs(QTable) -> case MsgStatus of #msg_status { msg = #basic_message { is_persistent = true }} -> ok; - _ -> mnesia:delete(QTable, Key, 'write') + _ -> ok = mnesia:delete(QTable, Key, 'write') end end, mnesia:all_keys(QTable)). @@ -641,8 +644,10 @@ internal_publish(Msg, msg = Msg, props = Props, is_delivered = IsDelivered }, - mnesia:write( - QTable, #q_record { seq_id = SeqId, msg_status = MsgStatus }, 'write'), + ok = mnesia:write( + QTable, + #q_record { seq_id = SeqId, msg_status = MsgStatus }, + 'write'), State #state { next_seq_id = SeqId + 1 }. -spec(internal_ack/2 :: ([seq_id()], state()) -> state()). @@ -675,7 +680,7 @@ q_pop(#state { q_table = QTable }) -> '$end_of_table' -> nothing; SeqId -> [#q_record { seq_id = SeqId, msg_status = MsgStatus }] = mnesia:read(QTable, SeqId, 'read'), - mnesia:delete(QTable, SeqId, 'write'), + ok = mnesia:delete(QTable, SeqId, 'write'), {just, MsgStatus} end. @@ -694,9 +699,8 @@ q_peek(#state { q_table = QTable }) -> %% post_pop operates after q_pop, calling add_pending_ack if necessary. --spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; - (false, msg_status(), state()) -> - {fetch_result(undefined), state()}). +-spec(post_pop(true, msg_status(), state()) -> fetch_result(ack()); + (false, msg_status(), state()) -> fetch_result(undefined)). post_pop(true, MsgStatus = #msg_status { @@ -716,10 +720,10 @@ post_pop(false, -spec add_pending_ack(msg_status(), state()) -> ok. add_pending_ack(MsgStatus = #msg_status { seq_id = SeqId }, - #state { p_table = PTable }) -> - mnesia:write(PTable, - #p_record { seq_id = SeqId, msg_status = MsgStatus }, - 'write'), + #state { p_table = PTable }) -> + ok = mnesia:write(PTable, + #p_record { seq_id = SeqId, msg_status = MsgStatus }, + 'write'), ok. %% del_pending_acks deletes some set of pending acks from the P table @@ -727,16 +731,16 @@ add_pending_ack(MsgStatus = #msg_status { seq_id = SeqId }, %% msg is deleted. -spec del_pending_acks(fun ((msg_status(), state()) -> state()), - [seq_id()], - state()) -> - state(). + [seq_id()], + state()) -> + state(). del_pending_acks(F, SeqIds, State = #state { p_table = PTable }) -> lists:foldl( fun (SeqId, S) -> [#p_record { msg_status = MsgStatus }] = mnesia:read(PTable, SeqId, 'read'), - mnesia:delete(PTable, SeqId, 'write'), + ok = mnesia:delete(PTable, SeqId, 'write'), F(MsgStatus, S) end, State, diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 6f8cc9c2..4483318b 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -155,7 +155,7 @@ init(_QueueName, _IsDurable, _Recover, _asyncCallback, _SyncCallback) -> q_len = 0, pending_acks = dict:new(), next_seq_id = 0, - confirmed = gb_sets:new(), + confirmed = gb_sets:new(), txn_dict = dict:new() }. %% ---------------------------------------------------------------------------- @@ -495,7 +495,7 @@ internal_dropwhile(Pred, State = #state { q = Q, q_len = QLen }) -> post_pop(true, MsgStatus = #msg_status { - seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, + seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, State = #state { q_len = QLen, pending_acks = PendingAcks }) -> MsgStatus1 = MsgStatus #msg_status { is_delivered = true }, {{Msg, IsDelivered, SeqId, QLen}, -- cgit v1.2.1 From 811a11b9d19dde0b8d17486b7a4fa117badd27f4 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 24 Mar 2011 07:19:58 -0700 Subject: Removed almost all comments. --- src/rabbit_disk_queue.erl | 323 +++----------------------------------- src/rabbit_mnesia_queue.erl | 374 +------------------------------------------- src/rabbit_ram_queue.erl | 286 +-------------------------------- 3 files changed, 28 insertions(+), 955 deletions(-) diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl index 8a7881e9..0987a546 100644 --- a/src/rabbit_disk_queue.erl +++ b/src/rabbit_disk_queue.erl @@ -28,82 +28,36 @@ %% behavior, where all msgs pass through disk (i.e., the file %% system). A few msgs may be in RAM on the way in or on the way out, %% and msgs may not be sent to disk if the queue is not long -%% enough. The goal is to maximize throughput, using sequential-access -%% for the disk instead of random-access. -%% -%% This will eventually be structured as a plug-in instead of an extra -%% module in the middle of the server tree.... -%% ---------------------------------------------------------------------------- - -%% ---------------------------------------------------------------------------- -%% This module wraps msgs into msg_status records for internal use, -%% including additional information. Pending acks are also recorded as -%% msg_status records. -%% -%% All queues are non-durable in this version, and all msgs are -%% treated as non-persistent. (This may break some clients and some -%% tests for durable queues, but it also keeps some tests from -%% breaking the test apparatus.) +%% enough. The goal is to maximize throughput in certain cases, using +%% sequential-access for the disk instead of random-access. %% ---------------------------------------------------------------------------- -%% TODO: Need to provide better back-pressure when queue is filling up. - -behaviour(rabbit_backing_queue). -%% The state record is the in-RAM AMQP queue state. It contains the -%% queue of msg_status records; the next_seq_id; and the AMQP -%% transaction dict. - --record(state, % The in-RAM queue state - { dir, % The directory name for disk files - next_file_id, % The next file number in the directory - q0, % The in-RAM queue of msg_status records to write - q0_len, % queue:len of q0 - q_file_names, % The queue of file names - q_file_names_len, % queue:len of q_file_names - q1, % The in-RAM queue of msg_status records to read - q1_len, % queue:len of q1 - pending_acks, % The seq_id->msg_status map of pending acks - next_seq_id, % The next msg_status record's seq_id - confirmed, % The set of msgs recently confirmed - txn_dict, % In-progress txn->tx map - worker % Async worker child +-record(state, + { dir, + next_file_id, + q0, + q0_len, + q_file_names, + q_file_names_len, + q1, + q1_len, + pending_acks, + next_seq_id, + confirmed, + txn_dict, + worker }). -%% A msg_status record is a wrapper around a msg. It contains a -%% seq_id, assigned when the msg is published; the msg itself; the -%% msg's props, as presented by the client or as transformed by the -%% client; and an is-delivered flag, for reporting. - --record(msg_status, % A wrapper aroung a msg - { seq_id, % The seq_id for the msg - msg, % The msg itself - props, % The msg properties - is_delivered % Has the msg been delivered? (for reporting) - }). +-record(msg_status, { seq_id, msg, props, is_delivered }). -%% A TX record is the value stored in the txn_dict. It contains a list -%% of (msg, props) pairs to be published after the AMQP transaction, -%% in reverse order, and a list of seq_ids to ack after the AMQP -%% transaction, in any order. No other write-operations are allowed in -%% AMQP transactions, and the effects of these operations are not -%% visible to the client until after the AMQP transaction commits. - --record(tx, - { to_pub, % List of (msg, props) pairs to publish - to_ack % List of seq_ids to ack - }). +-record(tx, { to_pub, to_ack }). -include("rabbit.hrl"). -define(FILE_BATCH_SIZE, 1000). -%% ---------------------------------------------------------------------------- - -%% BUG: Restore -ifdef, -endif. - -%% -ifdef(use_specs). - -type(maybe(T) :: nothing | {just, T}). -type(seq_id() :: non_neg_integer()). @@ -136,41 +90,10 @@ -include("rabbit_backing_queue_spec.hrl"). -%% -endif. - -%% ---------------------------------------------------------------------------- -%% Public API -%% -%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here -%% for clarity. - -%% ---------------------------------------------------------------------------- -%% start/1 predicts that a list of (durable) queues will be started in -%% the near future. This lets us perform early checking of the -%% consistency of those queues, and initialize other shared -%% resources. These queues might not in fact be started, and other -%% queues might be started instead. It is ignored in this -%% implementation. -%% -%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). - start(_DurableQueues) -> ok. -%% ---------------------------------------------------------------------------- -%% stop/0 tears down all state/resources upon shutdown. It might not -%% be called. It is ignored in this implementation. -%% -%% -spec(stop/0 :: () -> 'ok'). - stop() -> ok. -%% ---------------------------------------------------------------------------- -%% init/5 creates one backing queue, returning its state. Names are -%% local to the vhost, and must be unique. -%% -%% -spec(init/5 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery(), -%% async_callback(), sync_callback()) -> state()). - init(QueueName, _IsDurable, _Recover, _AsyncCallback, _SyncCallback) -> Dir = dir(QueueName), case file:make_dir(Dir) of @@ -196,21 +119,8 @@ init(QueueName, _IsDurable, _Recover, _AsyncCallback, _SyncCallback) -> txn_dict = dict:new(), worker = spawn_worker() }. -%% ---------------------------------------------------------------------------- -%% terminate/1 deletes all of a queue's pending acks, prior to -%% shutdown. Other calls might be made following terminate/1. -%% -%% -spec(terminate/1 :: (state()) -> state()). - terminate(State) -> State #state { pending_acks = dict:new() }. -%% ---------------------------------------------------------------------------- -%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and -%% pending acks, prior to shutdown. Other calls might be made -%% following delete_and_terminate/1. -%% -%% -spec(delete_and_terminate/1 :: (state()) -> state()). - delete_and_terminate(State = #state { q_file_names = QFileNames }) -> lists:foreach( fun (filename) -> ok = file:delete(filename) end, @@ -223,12 +133,6 @@ delete_and_terminate(State = #state { q_file_names = QFileNames }) -> q1_len = 0, pending_acks = dict:new() }. -%% ---------------------------------------------------------------------------- -%% purge/1 deletes all of queue's enqueued msgs, returning the count -%% of msgs purged. -%% -%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). - purge(State = #state { q_file_names = QFileNames }) -> lists:foreach( fun (filename) -> ok = file:delete(filename) end, @@ -241,31 +145,10 @@ purge(State = #state { q_file_names = QFileNames }) -> q1 = queue:new(), q1_len = 0 }}. -%% ---------------------------------------------------------------------------- -%% publish/3 publishes a msg. -%% -%% -spec(publish/3 :: -%% (rabbit_types:basic_message(), -%% rabbit_types:message_properties(), -%% state()) -%% -> state()). - publish(Msg, Props, State) -> State1 = internal_publish(Msg, Props, false, State), confirm([{Msg, Props}], State1). -%% ---------------------------------------------------------------------------- -%% publish_delivered/4 is called after a msg has been passed straight -%% out to a client because the queue is empty. We update all state -%% (e.g., next_seq_id) as if we had in fact handled the msg. -%% -%% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), -%% rabbit_types:message_properties(), state()) -%% -> {ack(), state()}; -%% (false, rabbit_types:basic_message(), -%% rabbit_types:message_properties(), state()) -%% -> {undefined, state()}). - publish_delivered(false, Msg, Props, State) -> {undefined, confirm([{Msg, Props}], State)}; publish_delivered(true, @@ -282,95 +165,31 @@ publish_delivered(true, pending_acks = dict:store(SeqId, MsgStatus, PendingAcks) }, {SeqId, confirm([{Msg, Props}], State1)}. -%% ---------------------------------------------------------------------------- -%% drain_confirmed/1 returns the ids of all of the messages that have -%% been confirmed since the last invocation of this function (or since -%% initialisation). -%% -%% -spec(drain_confirmed/1 :: (state()) -> {[rabbit_guid:guid()], state()}). - drain_confirmed(State = #state { confirmed = Confirmed }) -> {gb_sets:to_list(Confirmed), State #state { confirmed = gb_sets:new() }}. -%% ---------------------------------------------------------------------------- -%% dropwhile/2 drops msgs from the head of the queue while there are -%% msgs and while the supplied predicate returns true. -%% -%% The only current use of dropwhile/1 is to drop expired messages -%% from the head of the queue. -%% -%% -spec(dropwhile/2 :: -%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) -%% -> state()). - dropwhile(Pred, State) -> internal_dropwhile(Pred, State). -%% ---------------------------------------------------------------------------- -%% fetch/2 produces the next msg, if any. -%% -%% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; -%% (false, state()) -> {fetch_result(undefined), state()}). - fetch(AckRequired, State) -> internal_fetch(AckRequired, State). -%% ---------------------------------------------------------------------------- -%% ack/2 acknowledges msgs named by SeqIds. -%% -%% -spec(ack/2 :: ([ack()], state()) -> state()). - ack(SeqIds, State) -> internal_ack(SeqIds, State). -%% ---------------------------------------------------------------------------- -%% tx_publish/4 records a pending publish within an AMQP -%% transaction. It stores the msg and its properties in the to_pub -%% field of the txn, waiting to be committed. -%% -%% -spec(tx_publish/4 :: -%% (rabbit_types:txn(), -%% rabbit_types:basic_message(), -%% rabbit_types:message_properties(), -%% state()) -%% -> state()). - tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), State #state { txn_dict = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, TxnDict) }. -%% ---------------------------------------------------------------------------- -%% tx_ack/3 records pending acks within an AMQP transaction. It stores -%% the seq_id in the acks field of the txn, waiting to be committed. -%% -%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). - tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), State #state { txn_dict = store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, TxnDict) }. -%% ---------------------------------------------------------------------------- -%% tx_rollback/2 aborts a pending AMQP transaction. -%% -%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). - tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), {SeqIds, State #state { txn_dict = erase_tx(Txn, TxnDict) }}. -%% ---------------------------------------------------------------------------- -%% tx_commit/4 commits a pending AMQP transaction. The F passed in is -%% called once the msgs have really been commited (which does not -%% matter here). -%% -%% -spec(tx_commit/4 :: -%% (rabbit_types:txn(), -%% fun (() -> any()), -%% message_properties_transformer(), -%% state()) -%% -> {[ack()], state()}). - tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), F(), @@ -381,13 +200,6 @@ tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> State #state { txn_dict = erase_tx(Txn, TxnDict) }), {SeqIds, confirm(Pubs, State1)}. -%% ---------------------------------------------------------------------------- -%% requeue/3 reinserts msgs into the queue that have already been -%% delivered and were pending acknowledgement. -%% -%% -spec(requeue/3 :: -%% ([ack()], message_properties_transformer(), state()) -> state()). - requeue(SeqIds, PropsF, State) -> del_pending_acks( fun (#msg_status { msg = Msg, props = Props }, S) -> @@ -396,88 +208,26 @@ requeue(SeqIds, PropsF, State) -> SeqIds, State). -%% ---------------------------------------------------------------------------- -%% len/1 returns the current queue length. (The queue length is -%% maintained internally instead of being computed on demand, since -%% the rabbit_amqqueue_process module calls len/1 so frequently.) -%% -%% -spec(len/1 :: (state()) -> non_neg_integer()). - len(State) -> internal_len(State). -%% ---------------------------------------------------------------------------- -%% is_empty/1 returns true iff the queue is empty. -%% -%% -spec(is_empty/1 :: (state()) -> boolean()). - is_empty(State) -> 0 == internal_len(State). -%% ---------------------------------------------------------------------------- -%% set_ram_duration_target informs us that the target is to have no -%% more msgs in RAM than indicated by the duration and the current -%% queue rates. It is ignored in this implementation. -%% -%% -spec(set_ram_duration_target/2 :: -%% (('undefined' | 'infinity' | number()), state()) -%% -> state()). - set_ram_duration_target(_, State) -> State. -%% ---------------------------------------------------------------------------- -%% ram_duration/1 optionally recalculates the duration internally -%% (likely to be just update your internal rates), and report how many -%% seconds the msgs in RAM represent given the current rates of the -%% queue. It is a dummy in this implementation. -%% -%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). - ram_duration(State) -> {0, State}. -%% ---------------------------------------------------------------------------- -%% needs_idle_timeout/1 returns true iff idle_timeout should be called -%% as soon as the queue process can manage (either on an empty -%% mailbox, or when a timer fires). It always returns false in this -%% implementation. -%% -%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). - needs_idle_timeout(_) -> false. -%% ---------------------------------------------------------------------------- -%% idle_timeout/1 is called (eventually) after needs_idle_timeout -%% returns true. It is a dummy in this implementation. -%% -%% -spec(idle_timeout/1 :: (state()) -> state()). - idle_timeout(State) -> State. -%% ---------------------------------------------------------------------------- -%% handle_pre_hibernate/1 is called immediately before the queue -%% hibernates. It is a dummy in this implementation. -%% -%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). - handle_pre_hibernate(State) -> State. -%% ---------------------------------------------------------------------------- -%% status/1 exists for debugging and operational purposes, to be able -%% to expose state via rabbitmqctl. -%% -%% -spec(status/1 :: (state()) -> [{atom(), any()}]). - status(State = #state { pending_acks = PendingAcks, next_seq_id = NextSeqId }) -> [{len, internal_len(State)}, {next_seq_id, NextSeqId}, {acks, dict:size(PendingAcks)}]. -%% ---------------------------------------------------------------------------- -%% Helper functions. -%% ---------------------------------------------------------------------------- - -%% internal_fetch/2 fetches the next msg, if any, generating a pending -%% ack as necessary. - -spec(internal_fetch(true, state()) -> {fetch_result(ack()), state()}; (false, state()) -> {fetch_result(undefined), state()}). @@ -546,9 +296,6 @@ internal_dropwhile(Pred, State) -> end end. -%% post_pop operates after popping a msg_status from the queue, -%% adding a pending ack if necessary. - -spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; (false, msg_status(), state()) -> {fetch_result(undefined), state()}). @@ -566,9 +313,6 @@ post_pop(false, State) -> {{Msg, IsDelivered, undefined, internal_len(State)}, State}. -%% del_pending_acks deletes some set of pending acks from the -%% pending_acks dict, applying a function F after each msg is deleted. - -spec del_pending_acks(fun ((msg_status(), state()) -> state()), [seq_id()], state()) -> @@ -584,13 +328,6 @@ del_pending_acks(F, SeqIds, State) -> State, SeqIds). -%% ---------------------------------------------------------------------------- -%% Disk helper functions. -%% ---------------------------------------------------------------------------- - -%% push_q0/1 pushes the contents of q0 to disk unless q0 contains less -%% than ?FILE_BATCH_SIZE msgs. - -spec push_q0(state()) -> state(). push_q0(State = #state { dir = Dir, @@ -617,9 +354,6 @@ push_q0(State = #state { dir = Dir, q_file_names_len = QFileNamesLen + 1 } end. -%% pull_q1/1 makes q1 non-empty, unless there are no msgs on disk or -%% in q0. - -spec pull_q1(state()) -> state(). pull_q1(State = #state { q0 = Q0, @@ -650,16 +384,6 @@ pull_q1(State = #state { q0 = Q0, true -> State end. -%% ---------------------------------------------------------------------------- -%% Pure helper functions. -%% ---------------------------------------------------------------------------- - -%% Convert a queue name (a record) into a directory name (a string). - -%% TODO: Import correct argument type. - -%% TODO: Use Mnesia directory instead of random desktop directory. - -spec dir({resource, binary(), queue, binary()}) -> string(). dir({resource, VHost, queue, Name}) -> @@ -690,12 +414,6 @@ store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). -%% ---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%% ---------------------------------------------------------------------------- - -%% confirm/1 records confirmed messages. - -spec confirm([pub()], state()) -> state(). confirm(Pubs, State = #state { confirmed = Confirmed }) -> @@ -709,11 +427,6 @@ confirm(Pubs, State = #state { confirmed = Confirmed }) -> gb_sets:union(Confirmed, gb_sets:from_list(MsgIds)) } end. -%% ---------------------------------------------------------------------------- -%% Background worker process (non-OTP) for speeding up demo by about -%% 10%, currently with no mechanism for shutdown -%% ---------------------------------------------------------------------------- - -spec spawn_worker() -> pid(). spawn_worker() -> Parent = self(), diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 9583f0e3..8182a20a 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -26,98 +26,22 @@ %% ---------------------------------------------------------------------------- %% This is a simple implementation of the rabbit_backing_queue %% behavior, with all msgs in Mnesia. -%% -%% This will eventually be structured as a plug-in instead of an extra -%% module in the middle of the server tree.... -%% ---------------------------------------------------------------------------- - -%% ---------------------------------------------------------------------------- -%% This module wraps msgs into msg_status records for internal use, -%% including additional information. Pending acks are also recorded as -%% msg_status records. These are both stored in Mnesia. -%% -%% All queues are durable in this version, and all msgs are treated as -%% persistent. (This may break some clients and some tests for -%% non-durable queues.) %% ---------------------------------------------------------------------------- -%% BUG: The rabbit_backing_queue_spec behaviour needs improvement. For -%% example, there are points in the protocol where failures can lose -%% msgs. - -%% TODO: Need to provide better back-pressure when queue is filling up. +-behaviour(rabbit_backing_queue). -%% BUG: Should not use mnesia:all_keys to count entries. +-record(state, { q_table, p_table, next_seq_id, confirmed, txn_dict }). -%% BUG: p_records do not need a separate seq_id. +-record(msg_status, { seq_id, msg, props, is_delivered }). -%% TODO: Worry about dropping txn_dict upon failure. +-record(tx, { to_pub, to_ack }). --behaviour(rabbit_backing_queue). +-record(q_record, { seq_id, msg_status }). -%% The state record is the in-RAM AMQP queue state. It contains the -%% names of two Mnesia queues; the next_seq_id; and the AMQP -%% transaction dict (which can be dropped on a crash). - --record(state, % The in-RAM queue state - { q_table, % The Mnesia queue table name - p_table, % The Mnesia pending-ack table name - next_seq_id, % The next M's seq_id - confirmed, % The set of msgs recently confirmed - txn_dict % In-progress txn->tx map - }). - -%% An msg_status record is a wrapper around a msg. It contains a -%% seq_id, assigned when the msg is published; the msg itself; the -%% msg's props, as presented by the client or as transformed by the -%% client; and an is-delivered flag, for reporting. - --record(msg_status, % A wrapper aroung a msg - { seq_id, % The seq_id for the msg - msg, % The msg itself - props, % The msg properties - is_delivered % Has the msg been delivered? (for reporting) - }). - -%% A TX record is the value stored in the txn_dict. It contains a list -%% of (msg, props) pairs to be published after the AMQP transaction, -%% in reverse order, and a list of seq_ids to ack after the AMQP -%% transaction, in any order. No other write-operations are allowed in -%% AMQP transactions, and the effects of these operations are not -%% visible to the client until after the AMQP transaction commits. - --record(tx, - { to_pub, % List of (msg, props) pairs to publish - to_ack % List of seq_ids to ack - }). - -%% A Q record is a msg stored in the Q table in Mnesia. It is indexed -%% by the out-id, which orders msgs; and contains the msg_status -%% record itself. We push msg_status records with a new high seq_id, -%% and pop the msg_status record with the lowest seq_id. - --record(q_record, % Q records in Mnesia - { seq_id, % The key: The seq_id - msg_status % The value: The msg_status record - }). - -%% A P record is a pending-ack stored in the P table in Mnesia. It is -%% indexed by the seq_id, and contains the msg_status record -%% itself. It is randomly accessed by seq_id. - --record(p_record, % P records in Mnesia - { seq_id, % The key: The seq_id - msg_status % The value: The msg_status record - }). +-record(p_record, { seq_id, msg_status }). -include("rabbit.hrl"). -%% ---------------------------------------------------------------------------- - -%% BUG: Restore -ifdef, -endif. - -%% -ifdef(use_specs). - -type(maybe(T) :: nothing | {just, T}). -type(seq_id() :: non_neg_integer()). @@ -142,50 +66,10 @@ -include("rabbit_backing_queue_spec.hrl"). -%% -endif. - -%% ---------------------------------------------------------------------------- -%% Public API -%% -%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here -%% for clarity. - -%% ---------------------------------------------------------------------------- -%% start/1 predicts that a list of (durable) queues will be started in -%% the near future. This lets us perform early checking of the -%% consistency of those queues, and initialize other shared -%% resources. These queues might not in fact be started, and other -%% queues might be started instead. It is ignored in this -%% implementation. -%% -%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). - start(_DurableQueues) -> ok. -%% ---------------------------------------------------------------------------- -%% stop/0 tears down all state/resources upon shutdown. It might not -%% be called. It is ignored in this implementation. -%% -%% -spec(stop/0 :: () -> 'ok'). - stop() -> ok. -%% ---------------------------------------------------------------------------- -%% init/5 creates one backing queue, returning its state. Names are -%% local to the vhost, and must be unique. -%% -%% init/5 creates Mnesia transactions to run in, and therefore may not -%% be called from inside another Mnesia transaction. -%% -%% -spec(init/5 :: -%% (rabbit_amqqueue:name(), is_durable(), attempt_recovery()) -%% -> state()). - -%% BUG: We should allow clustering of the Mnesia tables. - -%% BUG: It's unfortunate that this can't all be done in a single -%% Mnesia transaction! - init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> {QTable, PTable} = tables(QueueName), case Recover of @@ -216,30 +100,11 @@ init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> end), State. -%% ---------------------------------------------------------------------------- -%% terminate/1 deletes all of a queue's pending acks, prior to -%% shutdown. Other calls might be made following terminate/1. -%% -%% terminate/1 creates an Mnesia transaction to run in, and therefore -%% may not be called from inside another Mnesia transaction. -%% -%% -spec(terminate/1 :: (state()) -> state()). - terminate(State = #state { q_table = QTable, p_table = PTable }) -> {atomic, ok} = mnesia:clear_table(PTable), {atomic, ok} = mnesia:dump_tables([QTable, PTable]), State. -%% ---------------------------------------------------------------------------- -%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and -%% pending acks, prior to shutdown. Other calls might be made -%% following delete_and_terminate/1. -%% -%% delete_and_terminate/1 creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. -%% -%% -spec(delete_and_terminate/1 :: (state()) -> state()). - delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> {atomic, _} = mnesia:transaction(fun () -> clear_table(QTable), @@ -248,15 +113,6 @@ delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> {atomic, ok} = mnesia:dump_tables([QTable, PTable]), State. -%% ---------------------------------------------------------------------------- -%% purge/1 deletes all of queue's enqueued msgs, returning the count -%% of msgs purged. -%% -%% purge/1 creates an Mnesia transaction to run in, and therefore may -%% not be called from inside another Mnesia transaction. -%% -%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). - purge(State = #state { q_table = QTable }) -> {atomic, Result} = mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), @@ -265,39 +121,12 @@ purge(State = #state { q_table = QTable }) -> end), Result. -%% ---------------------------------------------------------------------------- -%% publish/3 publishes a msg. -%% -%% publish/3 creates an Mnesia transaction to run in, and therefore -%% may not be called from inside another Mnesia transaction. -%% -%% -spec(publish/3 :: -%% (rabbit_types:basic_message(), -%% rabbit_types:message_properties(), -%% state()) -%% -> state()). - publish(Msg, Props, State) -> {atomic, State1} = mnesia:transaction( fun () -> internal_publish(Msg, Props, false, State) end), confirm([{Msg, Props}], State1). -%% ---------------------------------------------------------------------------- -%% publish_delivered/4 is called after a msg has been passed straight -%% out to a client because the queue is empty. We update all state -%% (e.g., next_seq_id) as if we had in fact handled the msg. -%% -%% publish_delivered/4 creates an Mnesia transaction to run in, and -%% therefore may not be called from inside another Mnesia transaction. -%% -%% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), -%% rabbit_types:message_properties(), state()) -%% -> {ack(), state()}; -%% (false, rabbit_types:basic_message(), -%% rabbit_types:message_properties(), state()) -%% -> {undefined, state()}). - publish_delivered(false, Msg, Props, State) -> {undefined, confirm([{Msg, Props}], State)}; publish_delivered(true, @@ -316,112 +145,40 @@ publish_delivered(true, end), {SeqId, confirm([{Msg, Props}], State1)}. -%% ---------------------------------------------------------------------------- -%% drain_confirmed/1 returns the ids of all of the messages that have -%% been confirmed since the last invocation of this function (or since -%% initialisation). -%% -%% -spec(drain_confirmed/1 :: (state()) -> {[rabbit_guid:guid()], state()}). - drain_confirmed(State = #state { confirmed = Confirmed }) -> {gb_sets:to_list(Confirmed), State #state { confirmed = gb_sets:new() }}. -%% ---------------------------------------------------------------------------- -%% dropwhile/2 drops msgs from the head of the queue while there are -%% msgs and while the supplied predicate returns true. -%% -%% dropwhile/2 creates an Mnesia transaction to run in, and therefore -%% may not be called from inside another Mnesia transaction. The -%% supplied Pred is called from inside the transaction, and therefore -%% may not call another function that creates an Mnesia transaction. -%% -%% -spec(dropwhile/2 :: -%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) -%% -> state()). - dropwhile(Pred, State) -> {atomic, Result} = mnesia:transaction(fun () -> internal_dropwhile(Pred, State) end), Result. -%% ---------------------------------------------------------------------------- -%% fetch/2 produces the next msg, if any. -%% -%% fetch/2 creates an Mnesia transaction to run in, and therefore may -%% not be called from inside another Mnesia transaction. -%% -%% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; -%% (false, state()) -> {fetch_result(undefined), state()}). - fetch(AckRequired, State) -> {atomic, FetchResult} = mnesia:transaction(fun () -> internal_fetch(AckRequired, State) end), {FetchResult, State}. -%% ---------------------------------------------------------------------------- -%% ack/2 acknowledges msgs named by SeqIds. -%% -%% ack/2 creates an Mnesia transaction to run in, and therefore may -%% not be called from inside another Mnesia transaction. -%% -%% -spec(ack/2 :: ([ack()], state()) -> state()). - ack(SeqIds, State) -> {atomic, Result} = mnesia:transaction(fun () -> internal_ack(SeqIds, State) end), Result. -%% ---------------------------------------------------------------------------- -%% tx_publish/4 records a pending publish within an AMQP -%% transaction. It stores the msg and its properties in the to_pub -%% field of the txn, waiting to be committed. -%% -%% -spec(tx_publish/4 :: -%% (rabbit_types:txn(), -%% rabbit_types:basic_message(), -%% rabbit_types:message_properties(), -%% state()) -%% -> state()). - tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), State #state { txn_dict = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, TxnDict) }. -%% ---------------------------------------------------------------------------- -%% tx_ack/3 records pending acks within an AMQP transaction. It stores -%% the seq_id in the acks field of the txn, waiting to be committed. -%% -%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). - tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), State #state { txn_dict = store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, TxnDict) }. -%% ---------------------------------------------------------------------------- -%% tx_rollback/2 aborts a pending AMQP transaction. -%% -%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). - tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), {SeqIds, State #state { txn_dict = erase_tx(Txn, TxnDict) }}. -%% ---------------------------------------------------------------------------- -%% tx_commit/4 commits a pending AMQP transaction. The F passed in is -%% called once the msgs have really been commited (which does not -%% matter here). -%% -%% -spec(tx_commit/4 :: -%% (rabbit_types:txn(), -%% fun (() -> any()), -%% message_properties_transformer(), -%% state()) -%% -> {[ack()], state()}). - tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), {atomic, State1} = mnesia:transaction( @@ -435,16 +192,6 @@ tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> F(), {SeqIds, confirm(Pubs, State1)}. -%% ---------------------------------------------------------------------------- -%% requeue/3 reinserts msgs into the queue that have already been -%% delivered and were pending acknowledgement. -%% -%% requeue/3 creates an Mnesia transaction to run in, and therefore -%% may not be called from inside another Mnesia transaction. -%% -%% -spec(requeue/3 :: -%% ([ack()], message_properties_transformer(), state()) -> state()). - requeue(SeqIds, PropsF, State) -> {atomic, Result} = mnesia:transaction( @@ -458,89 +205,26 @@ requeue(SeqIds, PropsF, State) -> end), Result. -%% ---------------------------------------------------------------------------- -%% len/1 returns the queue length. (The queue length is computed on -%% demand, since it may change due to external actions.) -%% -%% len/1 creates an Mnesia transaction to run in, and therefore may -%% not be called from inside another Mnesia transaction. -%% -%% -spec(len/1 :: (state()) -> non_neg_integer()). - len(#state { q_table = QTable }) -> {atomic, Result} = mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), Result. -%% ---------------------------------------------------------------------------- -%% is_empty/1 returns true iff the queue is empty. -%% -%% is_empty/1 creates an Mnesia transaction to run in, and therefore -%% may not be called from inside another Mnesia transaction. -%% -%% -spec(is_empty/1 :: (state()) -> boolean()). - is_empty(#state { q_table = QTable }) -> {atomic, Result} = mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), Result. -%% ---------------------------------------------------------------------------- -%% set_ram_duration_target informs us that the target is to have no -%% more msgs in RAM than indicated by the duration and the current -%% queue rates. It is ignored in this implementation. -%% -%% -spec(set_ram_duration_target/2 :: -%% (('undefined' | 'infinity' | number()), state()) -%% -> state()). - set_ram_duration_target(_, State) -> State. -%% ---------------------------------------------------------------------------- -%% ram_duration/1 optionally recalculates the duration internally -%% (likely to be just update your internal rates), and report how many -%% seconds the msgs in RAM represent given the current rates of the -%% queue. It is a dummy in this implementation. -%% -%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). - ram_duration(State) -> {0, State}. -%% ---------------------------------------------------------------------------- -%% needs_idle_timeout/1 returns true iff idle_timeout should be called -%% as soon as the queue process can manage (either on an empty -%% mailbox, or when a timer fires). It always returns false in this -%% implementation. -%% -%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). - needs_idle_timeout(_) -> false. -%% ---------------------------------------------------------------------------- -%% idle_timeout/1 is called (eventually) after needs_idle_timeout -%% returns true. It is a dummy in this implementation. -%% -%% -spec(idle_timeout/1 :: (state()) -> state()). - idle_timeout(State) -> State. -%% ---------------------------------------------------------------------------- -%% handle_pre_hibernate/1 is called immediately before the queue -%% hibernates. It is a dummy in this implementation. -%% -%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). - handle_pre_hibernate(State) -> State. -%% ---------------------------------------------------------------------------- -%% status/1 exists for debugging and operational purposes, to be able -%% to expose state via rabbitmqctl. -%% -%% status/1 creates an Mnesia transaction to run in, and therefore may -%% not be called from inside another Mnesia transaction. -%% -%% -spec(status/1 :: (state()) -> [{atom(), any()}]). - status(#state { q_table = QTable, p_table = PTable, next_seq_id = NextSeqId }) -> @@ -552,10 +236,6 @@ status(#state { q_table = QTable, end), Result. -%% ---------------------------------------------------------------------------- -%% Monadic helper functions for inside transactions. -%% ---------------------------------------------------------------------------- - -spec create_table(atom(), atom(), atom(), [atom()]) -> ok. create_table(Table, RecordName, Type, Attributes) -> @@ -571,11 +251,6 @@ create_table(Table, RecordName, Type, Attributes) -> ok end. -%% Like mnesia:clear_table, but within an Mnesia transaction. - -%% BUG: The write-set of the transaction may be huge if the table is -%% huge. Then again, this might not bother Mnesia. - -spec clear_table(atom()) -> ok. clear_table(Table) -> @@ -585,8 +260,6 @@ clear_table(Table) -> clear_table(Table) end. -%% Delete non-persistent msgs after a restart. - -spec delete_nonpersistent_msgs(atom()) -> ok. delete_nonpersistent_msgs(QTable) -> @@ -602,9 +275,6 @@ delete_nonpersistent_msgs(QTable) -> end, mnesia:all_keys(QTable)). -%% internal_fetch/2 fetches the next msg, if any, inside an Mnesia -%% transaction, generating a pending ack as necessary. - -spec(internal_fetch(true, state()) -> fetch_result(ack()); (false, state()) -> fetch_result(undefined)). @@ -671,8 +341,6 @@ internal_dropwhile(Pred, State) -> end end. -%% q_pop pops a msg, if any, from the Q table in Mnesia. - -spec q_pop(state()) -> maybe(msg_status()). q_pop(#state { q_table = QTable }) -> @@ -684,9 +352,6 @@ q_pop(#state { q_table = QTable }) -> {just, MsgStatus} end. -%% q_peek returns the first msg, if any, from the Q table in -%% Mnesia. - -spec q_peek(state()) -> maybe(msg_status()). q_peek(#state { q_table = QTable }) -> @@ -697,8 +362,6 @@ q_peek(#state { q_table = QTable }) -> {just, MsgStatus} end. -%% post_pop operates after q_pop, calling add_pending_ack if necessary. - -spec(post_pop(true, msg_status(), state()) -> fetch_result(ack()); (false, msg_status(), state()) -> fetch_result(undefined)). @@ -715,8 +378,6 @@ post_pop(false, LQ = length(mnesia:all_keys(QTable)), {Msg, IsDelivered, undefined, LQ}. -%% add_pending_ack adds a pending ack to the P table in Mnesia. - -spec add_pending_ack(msg_status(), state()) -> ok. add_pending_ack(MsgStatus = #msg_status { seq_id = SeqId }, @@ -726,10 +387,6 @@ add_pending_ack(MsgStatus = #msg_status { seq_id = SeqId }, 'write'), ok. -%% del_pending_acks deletes some set of pending acks from the P table -%% in Mnesia, applying a (Mnesia transactional) function F after each -%% msg is deleted. - -spec del_pending_acks(fun ((msg_status(), state()) -> state()), [seq_id()], state()) -> @@ -746,19 +403,6 @@ del_pending_acks(F, SeqIds, State = #state { p_table = PTable }) -> State, SeqIds). -%% ---------------------------------------------------------------------------- -%% Pure helper functions. -%% ---------------------------------------------------------------------------- - -%% Convert a queue name (a record) into its Mnesia table names (atoms). - -%% TODO: Import correct argument type. - -%% BUG: Mnesia has undocumented restrictions on table names. Names -%% with slashes fail some operations, so we eliminate slashes. We -%% should extend this as necessary, and perhaps make it a little -%% prettier. - -spec tables({resource, binary(), queue, binary()}) -> {atom(), atom()}. tables({resource, VHost, queue, Name}) -> @@ -783,12 +427,6 @@ store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). -%% ---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%% ---------------------------------------------------------------------------- - -%% confirm/1 records confirmed messages. - -spec confirm([pub()], state()) -> state(). confirm(Pubs, State = #state { confirmed = Confirmed }) -> diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 4483318b..c4911cf7 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -23,73 +23,15 @@ is_empty/1, dropwhile/2, set_ram_duration_target/2, ram_duration/1, needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, status/1]). -%% ---------------------------------------------------------------------------- -%% This is a simple implementation of the rabbit_backing_queue -%% behavior, with all msgs in RAM. -%% -%% This will eventually be structured as a plug-in instead of an extra -%% module in the middle of the server tree.... -%% ---------------------------------------------------------------------------- - -%% ---------------------------------------------------------------------------- -%% This module wraps msgs into msg_status records for internal use, -%% including additional information. Pending acks are also recorded as -%% msg_status records. -%% -%% All queues are non-durable in this version, and all msgs are -%% treated as non-persistent. (This may break some clients and some -%% tests for durable queues, but it also keeps some tests from -%% breaking the test apparatus.) -%% ---------------------------------------------------------------------------- - -%% TODO: Need to provide better back-pressure when queue is filling up. - -behaviour(rabbit_backing_queue). -%% The state record is the in-RAM AMQP queue state. It contains the -%% queue of msg_status records; the next_seq_id; and the AMQP -%% transaction dict. - --record(state, % The in-RAM queue state - { q, % The queue of msg_status records - q_len, % queue:len of q - pending_acks, % The seq_id->msg_status map of pending acks - next_seq_id, % The next msg_status record's seq_id - confirmed, % The set of msgs recently confirmed - txn_dict % In-progress txn->tx map - }). - -%% An msg_status record is a wrapper around a msg. It contains a -%% seq_id, assigned when the msg is published; the msg itself; the -%% msg's props, as presented by the client or as transformed by the -%% client; and an is-delivered flag, for reporting. - --record(msg_status, % A wrapper aroung a msg - { seq_id, % The seq_id for the msg - msg, % The msg itself - props, % The msg properties - is_delivered % Has the msg been delivered? (for reporting) - }). - -%% A TX record is the value stored in the txn_dict. It contains a list -%% of (msg, props) pairs to be published after the AMQP transaction, -%% in reverse order, and a list of seq_ids to ack after the AMQP -%% transaction, in any order. No other write-operations are allowed in -%% AMQP transactions, and the effects of these operations are not -%% visible to the client until after the AMQP transaction commits. - --record(tx, - { to_pub, % List of (msg, props) pairs to publish - to_ack % List of seq_ids to ack - }). +-record(state, { q, q_len, pending_acks, next_seq_id, confirmed, txn_dict }). --include("rabbit.hrl"). +-record(msg_status, { seq_id, msg, props, is_delivered }). -%% ---------------------------------------------------------------------------- +-record(tx, { to_pub, to_ack }). -%% BUG: Restore -ifdef, -endif. - -%% -ifdef(use_specs). +-include("rabbit.hrl"). -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id()). @@ -115,41 +57,10 @@ -include("rabbit_backing_queue_spec.hrl"). -%% -endif. - -%% ---------------------------------------------------------------------------- -%% Public API -%% -%% Specs are in rabbit_backing_queue_spec.hrl but are repeated here -%% for clarity. - -%% ---------------------------------------------------------------------------- -%% start/1 predicts that a list of (durable) queues will be started in -%% the near future. This lets us perform early checking of the -%% consistency of those queues, and initialize other shared -%% resources. These queues might not in fact be started, and other -%% queues might be started instead. It is ignored in this -%% implementation. -%% -%% -spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). - start(_DurableQueues) -> ok. -%% ---------------------------------------------------------------------------- -%% stop/0 tears down all queue state/resources upon shutdown. It might -%% not be called. It is ignored in this implementation. -%% -%% -spec(stop/0 :: () -> 'ok'). - stop() -> ok. -%% ---------------------------------------------------------------------------- -%% init/5 creates one backing queue, returning its state. Names are -%% local to the vhost, and must be unique. -%% -%% -spec(init/5 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery(), -%% async_callback(), sync_callback()) -> state()). - init(_QueueName, _IsDurable, _Recover, _asyncCallback, _SyncCallback) -> #state { q = queue:new(), q_len = 0, @@ -158,58 +69,18 @@ init(_QueueName, _IsDurable, _Recover, _asyncCallback, _SyncCallback) -> confirmed = gb_sets:new(), txn_dict = dict:new() }. -%% ---------------------------------------------------------------------------- -%% terminate/1 deletes all of a queue's pending acks, prior to -%% shutdown. Other calls might be made following terminate/1. -%% -%% -spec(terminate/1 :: (state()) -> state()). - terminate(State) -> State #state { pending_acks = dict:new() }. -%% ---------------------------------------------------------------------------- -%% delete_and_terminate/1 deletes all of a queue's enqueued msgs and -%% pending acks, prior to shutdown. Other calls might be made -%% following delete_and_terminate/1. -%% -%% -spec(delete_and_terminate/1 :: (state()) -> state()). - delete_and_terminate(State) -> State #state { q = queue:new(), q_len = 0, pending_acks = dict:new() }. -%% ---------------------------------------------------------------------------- -%% purge/1 deletes all of queue's enqueued msgs, returning the count -%% of msgs purged. -%% -%% -spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). - purge(State = #state { q_len = QLen }) -> {QLen, State #state { q = queue:new(), q_len = 0 }}. -%% ---------------------------------------------------------------------------- -%% publish/3 publishes a msg. -%% -%% -spec(publish/3 :: -%% (rabbit_types:basic_message(), -%% rabbit_types:message_properties(), -%% state()) -%% -> state()). - publish(Msg, Props, State) -> State1 = internal_publish(Msg, Props, false, State), confirm([{Msg, Props}], State1). -%% ---------------------------------------------------------------------------- -%% publish_delivered/4 is called after a msg has been passed straight -%% out to a client because the queue is empty. We update all state -%% (e.g., next_seq_id) as if we had in fact handled the msg. -%% -%% -spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), -%% rabbit_types:message_properties(), state()) -%% -> {ack(), state()}; -%% (false, rabbit_types:basic_message(), -%% rabbit_types:message_properties(), state()) -%% -> {undefined, state()}). - publish_delivered(false, Msg, Props, State) -> {undefined, confirm([{Msg, Props}], State)}; publish_delivered(true, @@ -226,95 +97,31 @@ publish_delivered(true, pending_acks = dict:store(SeqId, MsgStatus, PendingAcks) }, {SeqId, confirm([{Msg, Props}], State1)}. -%%----------------------------------------------------------------------------- -%% drain_confirmed/1 returns the ids of all of the messages that have -%% been confirmed since the last invocation of this function (or since -%% initialisation). -%% -%% -spec(drain_confirmed/1 :: (state()) -> {[rabbit_guid:guid()], state()}). - drain_confirmed(State = #state { confirmed = Confirmed }) -> {gb_sets:to_list(Confirmed), State #state { confirmed = gb_sets:new() }}. -%% ---------------------------------------------------------------------------- -%% dropwhile/2 drops msgs from the head of the queue while there are -%% msgs and while the supplied predicate returns true. -%% -%% The only current use of dropwhile/1 is to drop expired messages -%% from the head of the queue. -%% -%% -spec(dropwhile/2 :: -%% (fun ((rabbit_types:message_properties()) -> boolean()), state()) -%% -> state()). - dropwhile(Pred, State) -> internal_dropwhile(Pred, State). -%% ---------------------------------------------------------------------------- -%% fetch/2 produces the next msg, if any. -%% -%% -spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; -%% (false, state()) -> {fetch_result(undefined), state()}). - fetch(AckRequired, State) -> internal_fetch(AckRequired, State). -%% ---------------------------------------------------------------------------- -%% ack/2 acknowledges msgs named by SeqIds. -%% -%% -spec(ack/2 :: ([ack()], state()) -> state()). - ack(SeqIds, State) -> internal_ack(SeqIds, State). -%% ---------------------------------------------------------------------------- -%% tx_publish/4 records a pending publish within an AMQP -%% transaction. It stores the msg and its properties in the to_pub -%% field of the txn, waiting to be committed. -%% -%% -spec(tx_publish/4 :: -%% (rabbit_types:txn(), -%% rabbit_types:basic_message(), -%% rabbit_types:message_properties(), -%% state()) -%% -> state()). - tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), State #state { txn_dict = store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, TxnDict) }. -%% ---------------------------------------------------------------------------- -%% tx_ack/3 records pending acks within an AMQP transaction. It stores -%% the seq_id in the acks field of the txn, waiting to be committed. -%% -%% -spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). - tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), State #state { txn_dict = store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, TxnDict) }. -%% ---------------------------------------------------------------------------- -%% tx_rollback/2 aborts a pending AMQP transaction. -%% -%% -spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). - tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), {SeqIds, State #state { txn_dict = erase_tx(Txn, TxnDict) }}. -%% ---------------------------------------------------------------------------- -%% tx_commit/4 commits a pending AMQP transaction. The F passed in is -%% called once the msgs have really been commited (which does not -%% matter here). -%% -%% -spec(tx_commit/4 :: -%% (rabbit_types:txn(), -%% fun (() -> any()), -%% message_properties_transformer(), -%% state()) -%% -> {[ack()], state()}). - tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), F(), @@ -325,13 +132,6 @@ tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> State #state { txn_dict = erase_tx(Txn, TxnDict) }), {SeqIds, confirm(Pubs, State1)}. -%% ---------------------------------------------------------------------------- -%% requeue/3 reinserts msgs into the queue that have already been -%% delivered and were pending acknowledgement. -%% -%% -spec(requeue/3 :: -%% ([ack()], message_properties_transformer(), state()) -> state()). - requeue(SeqIds, PropsF, State) -> del_pending_acks( fun (#msg_status { msg = Msg, props = Props }, S) -> @@ -340,87 +140,25 @@ requeue(SeqIds, PropsF, State) -> SeqIds, State). -%% ---------------------------------------------------------------------------- -%% len/1 returns the current queue length. (The queue length is -%% maintained internally instead of being computed on demand, since -%% the rabbit_amqqueue_process module calls len/1 so frequently.) -%% -%% -spec(len/1 :: (state()) -> non_neg_integer()). - len(#state { q_len = QLen }) -> QLen. -%% ---------------------------------------------------------------------------- -%% is_empty/1 returns true iff the queue is empty. -%% -%% -spec(is_empty/1 :: (state()) -> boolean()). - is_empty(#state { q_len = QLen }) -> QLen == 0. -%% ---------------------------------------------------------------------------- -%% set_ram_duration_target informs us that the target is to have no -%% more msgs in RAM than indicated by the duration and the current -%% queue rates. It is ignored in this implementation. -%% -%% -spec(set_ram_duration_target/2 :: -%% (('undefined' | 'infinity' | number()), state()) -%% -> state()). - set_ram_duration_target(_, State) -> State. -%% ---------------------------------------------------------------------------- -%% ram_duration/1 optionally recalculates the duration internally -%% (likely to be just update your internal rates), and report how many -%% seconds the msgs in RAM represent given the current rates of the -%% queue. It is a dummy in this implementation. -%% -%% -spec(ram_duration/1 :: (state()) -> {number(), state()}). - ram_duration(State) -> {0, State}. -%% ---------------------------------------------------------------------------- -%% needs_idle_timeout/1 returns true iff idle_timeout should be called -%% as soon as the queue process can manage (either on an empty -%% mailbox, or when a timer fires). It always returns false in this -%% implementation. -%% -%% -spec(needs_idle_timeout/1 :: (state()) -> boolean()). - needs_idle_timeout(_) -> false. -%% ---------------------------------------------------------------------------- -%% idle_timeout/1 is called (eventually) after needs_idle_timeout -%% returns true. It is a dummy in this implementation. -%% -%% -spec(idle_timeout/1 :: (state()) -> state()). - idle_timeout(State) -> State. -%% ---------------------------------------------------------------------------- -%% handle_pre_hibernate/1 is called immediately before the queue -%% hibernates. It is a dummy in this implementation. -%% -%% -spec(handle_pre_hibernate/1 :: (state()) -> state()). - handle_pre_hibernate(State) -> State. -%% ---------------------------------------------------------------------------- -%% status/1 exists for debugging and operational purposes, to be able -%% to expose state via rabbitmqctl. -%% -%% -spec(status/1 :: (state()) -> [{atom(), any()}]). - status(#state { q_len = QLen, pending_acks = PendingAcks, next_seq_id = NextSeqId }) -> [{len, QLen}, {next_seq_id, NextSeqId}, {acks, dict:size(PendingAcks)}]. -%% ---------------------------------------------------------------------------- -%% Helper functions. -%% ---------------------------------------------------------------------------- - -%% internal_fetch/2 fetches the next msg, if any, generating a pending -%% ack as necessary. - -spec(internal_fetch(true, state()) -> {fetch_result(ack()), state()}; (false, state()) -> {fetch_result(undefined), state()}). @@ -486,9 +224,6 @@ internal_dropwhile(Pred, State = #state { q = Q, q_len = QLen }) -> end end. -%% post_pop operates after popping a msg_status from the queue, -%% adding a pending ack if necessary. - -spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; (false, msg_status(), state()) -> {fetch_result(undefined), state()}). @@ -506,9 +241,6 @@ post_pop(false, State = #state { q_len = QLen }) -> {{Msg, IsDelivered, undefined, QLen}, State}. -%% del_pending_acks deletes some set of pending acks from the -%% pending_acks dict, applying a function F after each msg is deleted. - -spec del_pending_acks(fun ((msg_status(), state()) -> state()), [seq_id()], state()) -> @@ -524,10 +256,6 @@ del_pending_acks(F, SeqIds, State) -> State, SeqIds). -%% ---------------------------------------------------------------------------- -%% Pure helper functions. -%% ---------------------------------------------------------------------------- - -spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). lookup_tx(Txn, TxnDict) -> case dict:find(Txn, TxnDict) of @@ -543,12 +271,6 @@ store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). -%% ---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%% ---------------------------------------------------------------------------- - -%% confirm/1 records confirmed messages. - -spec confirm([pub()], state()) -> state(). confirm(Pubs, State = #state { confirmed = Confirmed }) -> -- cgit v1.2.1 From da36921ce8ffff725fa06fbf5c886fc5eb7b58e2 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 24 Mar 2011 08:05:10 -0700 Subject: Moved internal specs out of line, perhas preparatory to removing them. --- src/rabbit_disk_queue.erl | 100 +++++++++++++++++++++---------------------- src/rabbit_mnesia_queue.erl | 102 ++++++++++++++++++++++---------------------- src/rabbit_ram_queue.erl | 76 ++++++++++++++++----------------- 3 files changed, 139 insertions(+), 139 deletions(-) diff --git a/src/rabbit_disk_queue.erl b/src/rabbit_disk_queue.erl index 0987a546..3676637f 100644 --- a/src/rabbit_disk_queue.erl +++ b/src/rabbit_disk_queue.erl @@ -90,6 +90,56 @@ -include("rabbit_backing_queue_spec.hrl"). +-spec(internal_fetch(true, state()) -> {fetch_result(ack()), state()}; + (false, state()) -> {fetch_result(undefined), state()}). + +-spec internal_tx_commit([pub()], + [seq_id()], + message_properties_transformer(), + state()) -> + state(). + +-spec internal_publish(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). + +-spec(internal_ack/2 :: ([seq_id()], state()) -> state()). + +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), state()) + -> state()). + +-spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; + (false, msg_status(), state()) -> + {fetch_result(undefined), state()}). + +-spec del_pending_acks(fun ((msg_status(), state()) -> state()), + [seq_id()], + state()) -> + state(). + +-spec push_q0(state()) -> state(). + +-spec pull_q1(state()) -> state(). + +-spec dir({resource, binary(), queue, binary()}) -> string(). + +-spec internal_len(state()) -> non_neg_integer(). + +-spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). + +-spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). + +-spec erase_tx(rabbit_types:txn(), dict()) -> dict(). + +-spec confirm([pub()], state()) -> state(). + +-spec spawn_worker() -> pid(). + +-spec worker(pid(), maybe({string(), binary()})) -> no_return(). + start(_DurableQueues) -> ok. stop() -> ok. @@ -228,9 +278,6 @@ status(State = #state { pending_acks = PendingAcks, {next_seq_id, NextSeqId}, {acks, dict:size(PendingAcks)}]. --spec(internal_fetch(true, state()) -> {fetch_result(ack()), state()}; - (false, state()) -> {fetch_result(undefined), state()}). - internal_fetch(AckRequired, State) -> State1 = #state { q1 = Q, q1_len = QLen } = pull_q1(State), case queue:out(Q) of @@ -241,12 +288,6 @@ internal_fetch(AckRequired, State) -> State1 #state { q1 = Q1, q1_len = QLen - 1 }) end. --spec internal_tx_commit([pub()], - [seq_id()], - message_properties_transformer(), - state()) -> - state(). - internal_tx_commit(Pubs, SeqIds, PropsF, State) -> State1 = internal_ack(SeqIds, State), lists:foldl( @@ -256,12 +297,6 @@ internal_tx_commit(Pubs, SeqIds, PropsF, State) -> State1, lists:reverse(Pubs)). --spec internal_publish(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - state()) -> - state(). - internal_publish(Msg, Props, IsDelivered, @@ -274,15 +309,9 @@ internal_publish(Msg, q0_len = Q0Len + 1, next_seq_id = SeqId + 1 }). --spec(internal_ack/2 :: ([seq_id()], state()) -> state()). - internal_ack(SeqIds, State) -> del_pending_acks(fun (_, S) -> S end, SeqIds, State). --spec(internal_dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> state()). - internal_dropwhile(Pred, State) -> State1 = #state { q1 = Q, q1_len = QLen } = pull_q1(State), case queue:out(Q) of @@ -296,10 +325,6 @@ internal_dropwhile(Pred, State) -> end end. --spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; - (false, msg_status(), state()) -> - {fetch_result(undefined), state()}). - post_pop(true, MsgStatus = #msg_status { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, @@ -313,11 +338,6 @@ post_pop(false, State) -> {{Msg, IsDelivered, undefined, internal_len(State)}, State}. --spec del_pending_acks(fun ((msg_status(), state()) -> state()), - [seq_id()], - state()) -> - state(). - del_pending_acks(F, SeqIds, State) -> lists:foldl( fun (SeqId, S = #state { pending_acks = PendingAcks }) -> @@ -328,8 +348,6 @@ del_pending_acks(F, SeqIds, State) -> State, SeqIds). --spec push_q0(state()) -> state(). - push_q0(State = #state { dir = Dir, next_file_id = FileId, q0 = Q0, @@ -354,8 +372,6 @@ push_q0(State = #state { dir = Dir, q_file_names_len = QFileNamesLen + 1 } end. --spec pull_q1(state()) -> state(). - pull_q1(State = #state { q0 = Q0, q0_len = Q0Len, q_file_names = QFileNames, @@ -384,38 +400,26 @@ pull_q1(State = #state { q0 = Q0, true -> State end. --spec dir({resource, binary(), queue, binary()}) -> string(). - dir({resource, VHost, queue, Name}) -> VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), Str = lists:flatten(io_lib:format("~999999999999p", [{VHost2, Name2}])), "/Users/john/Desktop/" ++ Str. --spec internal_len(state()) -> non_neg_integer(). - internal_len(#state { q0_len = Q0Len, q_file_names_len = QFileNamesLen, q1_len = Q1Len }) -> Q0Len + ?FILE_BATCH_SIZE * QFileNamesLen + Q1Len. --spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). - lookup_tx(Txn, TxnDict) -> case dict:find(Txn, TxnDict) of error -> #tx { to_pub = [], to_ack = [] }; {ok, Tx} -> Tx end. --spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). - store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). --spec erase_tx(rabbit_types:txn(), dict()) -> dict(). - erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). --spec confirm([pub()], state()) -> state(). - confirm(Pubs, State = #state { confirmed = Confirmed }) -> MsgIds = [MsgId || {#basic_message { id = MsgId }, @@ -427,13 +431,9 @@ confirm(Pubs, State = #state { confirmed = Confirmed }) -> gb_sets:union(Confirmed, gb_sets:from_list(MsgIds)) } end. --spec spawn_worker() -> pid(). - spawn_worker() -> Parent = self(), spawn(fun() -> worker(Parent, nothing) end). --spec worker(pid(), maybe({string(), binary()})) -> no_return(). - worker(Parent, Contents) -> receive {write_behind, FileName, Binary} -> diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 8182a20a..0d6deae0 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -66,6 +66,57 @@ -include("rabbit_backing_queue_spec.hrl"). +-spec create_table(atom(), atom(), atom(), [atom()]) -> ok. + +-spec clear_table(atom()) -> ok. + +-spec delete_nonpersistent_msgs(atom()) -> ok. + +-spec(internal_fetch(true, state()) -> fetch_result(ack()); + (false, state()) -> fetch_result(undefined)). + +-spec internal_tx_commit([pub()], + [seq_id()], + message_properties_transformer(), + state()) -> + state(). + +-spec internal_publish(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). + +-spec(internal_ack/2 :: ([seq_id()], state()) -> state()). + +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), state()) + -> state()). + +-spec q_pop(state()) -> maybe(msg_status()). + +-spec q_peek(state()) -> maybe(msg_status()). + +-spec(post_pop(true, msg_status(), state()) -> fetch_result(ack()); + (false, msg_status(), state()) -> fetch_result(undefined)). + +-spec add_pending_ack(msg_status(), state()) -> ok. + +-spec del_pending_acks(fun ((msg_status(), state()) -> state()), + [seq_id()], + state()) -> + state(). + +-spec tables({resource, binary(), queue, binary()}) -> {atom(), atom()}. + +-spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). + +-spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). + +-spec erase_tx(rabbit_types:txn(), dict()) -> dict(). + +-spec confirm([pub()], state()) -> state(). + start(_DurableQueues) -> ok. stop() -> ok. @@ -236,8 +287,6 @@ status(#state { q_table = QTable, end), Result. --spec create_table(atom(), atom(), atom(), [atom()]) -> ok. - create_table(Table, RecordName, Type, Attributes) -> case mnesia:create_table(Table, [{record_name, RecordName}, {type, Type}, @@ -251,8 +300,6 @@ create_table(Table, RecordName, Type, Attributes) -> ok end. --spec clear_table(atom()) -> ok. - clear_table(Table) -> case mnesia:first(Table) of '$end_of_table' -> ok; @@ -260,8 +307,6 @@ clear_table(Table) -> clear_table(Table) end. --spec delete_nonpersistent_msgs(atom()) -> ok. - delete_nonpersistent_msgs(QTable) -> lists:foreach( fun (Key) -> @@ -275,21 +320,12 @@ delete_nonpersistent_msgs(QTable) -> end, mnesia:all_keys(QTable)). --spec(internal_fetch(true, state()) -> fetch_result(ack()); - (false, state()) -> fetch_result(undefined)). - internal_fetch(AckRequired, State) -> case q_pop(State) of nothing -> empty; {just, MsgStatus} -> post_pop(AckRequired, MsgStatus, State) end. --spec internal_tx_commit([pub()], - [seq_id()], - message_properties_transformer(), - state()) -> - state(). - internal_tx_commit(Pubs, SeqIds, PropsF, State) -> State1 = internal_ack(SeqIds, State), lists:foldl( @@ -299,12 +335,6 @@ internal_tx_commit(Pubs, SeqIds, PropsF, State) -> State1, lists:reverse(Pubs)). --spec internal_publish(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - state()) -> - state(). - internal_publish(Msg, Props, IsDelivered, @@ -320,15 +350,9 @@ internal_publish(Msg, 'write'), State #state { next_seq_id = SeqId + 1 }. --spec(internal_ack/2 :: ([seq_id()], state()) -> state()). - internal_ack(SeqIds, State) -> del_pending_acks(fun (_, S) -> S end, SeqIds, State). --spec(internal_dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> state()). - internal_dropwhile(Pred, State) -> case q_peek(State) of nothing -> State; @@ -341,8 +365,6 @@ internal_dropwhile(Pred, State) -> end end. --spec q_pop(state()) -> maybe(msg_status()). - q_pop(#state { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; @@ -352,8 +374,6 @@ q_pop(#state { q_table = QTable }) -> {just, MsgStatus} end. --spec q_peek(state()) -> maybe(msg_status()). - q_peek(#state { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; @@ -362,9 +382,6 @@ q_peek(#state { q_table = QTable }) -> {just, MsgStatus} end. --spec(post_pop(true, msg_status(), state()) -> fetch_result(ack()); - (false, msg_status(), state()) -> fetch_result(undefined)). - post_pop(true, MsgStatus = #msg_status { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, @@ -378,8 +395,6 @@ post_pop(false, LQ = length(mnesia:all_keys(QTable)), {Msg, IsDelivered, undefined, LQ}. --spec add_pending_ack(msg_status(), state()) -> ok. - add_pending_ack(MsgStatus = #msg_status { seq_id = SeqId }, #state { p_table = PTable }) -> ok = mnesia:write(PTable, @@ -387,11 +402,6 @@ add_pending_ack(MsgStatus = #msg_status { seq_id = SeqId }, 'write'), ok. --spec del_pending_acks(fun ((msg_status(), state()) -> state()), - [seq_id()], - state()) -> - state(). - del_pending_acks(F, SeqIds, State = #state { p_table = PTable }) -> lists:foldl( fun (SeqId, S) -> @@ -403,32 +413,22 @@ del_pending_acks(F, SeqIds, State = #state { p_table = PTable }) -> State, SeqIds). --spec tables({resource, binary(), queue, binary()}) -> {atom(), atom()}. - tables({resource, VHost, queue, Name}) -> VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), Name2 = re:split(binary_to_list(Name), "[/]", [{return, list}]), Str = lists:flatten(io_lib:format("~999999999p", [{VHost2, Name2}])), {list_to_atom("q" ++ Str), list_to_atom("p" ++ Str)}. --spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). - lookup_tx(Txn, TxnDict) -> case dict:find(Txn, TxnDict) of error -> #tx { to_pub = [], to_ack = [] }; {ok, Tx} -> Tx end. --spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). - store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). --spec erase_tx(rabbit_types:txn(), dict()) -> dict(). - erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). --spec confirm([pub()], state()) -> state(). - confirm(Pubs, State = #state { confirmed = Confirmed }) -> MsgIds = [MsgId || {#basic_message { id = MsgId }, diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index c4911cf7..7300b4cc 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -57,6 +57,44 @@ -include("rabbit_backing_queue_spec.hrl"). +-spec(internal_fetch(true, state()) -> {fetch_result(ack()), state()}; + (false, state()) -> {fetch_result(undefined), state()}). + +-spec internal_tx_commit([pub()], + [seq_id()], + message_properties_transformer(), + state()) -> + state(). + +-spec internal_publish(rabbit_types:basic_message(), + rabbit_types:message_properties(), + boolean(), + state()) -> + state(). + +-spec(internal_ack/2 :: ([seq_id()], state()) -> state()). + +-spec(internal_dropwhile/2 :: + (fun ((rabbit_types:message_properties()) -> boolean()), state()) + -> state()). + +-spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; + (false, msg_status(), state()) -> + {fetch_result(undefined), state()}). + +-spec del_pending_acks(fun ((msg_status(), state()) -> state()), + [seq_id()], + state()) -> + state(). + +-spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). + +-spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). + +-spec erase_tx(rabbit_types:txn(), dict()) -> dict(). + +-spec confirm([pub()], state()) -> state(). + start(_DurableQueues) -> ok. stop() -> ok. @@ -159,9 +197,6 @@ status(#state { q_len = QLen, next_seq_id = NextSeqId }) -> [{len, QLen}, {next_seq_id, NextSeqId}, {acks, dict:size(PendingAcks)}]. --spec(internal_fetch(true, state()) -> {fetch_result(ack()), state()}; - (false, state()) -> {fetch_result(undefined), state()}). - internal_fetch(AckRequired, State = #state { q = Q, q_len = QLen }) -> case queue:out(Q) of {empty, _} -> {empty, State}; @@ -171,12 +206,6 @@ internal_fetch(AckRequired, State = #state { q = Q, q_len = QLen }) -> State #state { q = Q1, q_len = QLen - 1 }) end. --spec internal_tx_commit([pub()], - [seq_id()], - message_properties_transformer(), - state()) -> - state(). - internal_tx_commit(Pubs, SeqIds, PropsF, State) -> State1 = internal_ack(SeqIds, State), lists:foldl( @@ -186,12 +215,6 @@ internal_tx_commit(Pubs, SeqIds, PropsF, State) -> State1, lists:reverse(Pubs)). --spec internal_publish(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - state()) -> - state(). - internal_publish(Msg, Props, IsDelivered, @@ -203,15 +226,9 @@ internal_publish(Msg, q_len = QLen + 1, next_seq_id = SeqId + 1 }. --spec(internal_ack/2 :: ([seq_id()], state()) -> state()). - internal_ack(SeqIds, State) -> del_pending_acks(fun (_, S) -> S end, SeqIds, State). --spec(internal_dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> state()). - internal_dropwhile(Pred, State = #state { q = Q, q_len = QLen }) -> case queue:out(Q) of {empty, _} -> State; @@ -224,10 +241,6 @@ internal_dropwhile(Pred, State = #state { q = Q, q_len = QLen }) -> end end. --spec(post_pop(true, msg_status(), state()) -> {fetch_result(ack()), state()}; - (false, msg_status(), state()) -> - {fetch_result(undefined), state()}). - post_pop(true, MsgStatus = #msg_status { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, @@ -241,11 +254,6 @@ post_pop(false, State = #state { q_len = QLen }) -> {{Msg, IsDelivered, undefined, QLen}, State}. --spec del_pending_acks(fun ((msg_status(), state()) -> state()), - [seq_id()], - state()) -> - state(). - del_pending_acks(F, SeqIds, State) -> lists:foldl( fun (SeqId, S = #state { pending_acks = PendingAcks }) -> @@ -256,23 +264,15 @@ del_pending_acks(F, SeqIds, State) -> State, SeqIds). --spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). - lookup_tx(Txn, TxnDict) -> case dict:find(Txn, TxnDict) of error -> #tx { to_pub = [], to_ack = [] }; {ok, Tx} -> Tx end. --spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). - store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). --spec erase_tx(rabbit_types:txn(), dict()) -> dict(). - erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). --spec confirm([pub()], state()) -> state(). - confirm(Pubs, State = #state { confirmed = Confirmed }) -> MsgIds = [MsgId || {#basic_message { id = MsgId }, -- cgit v1.2.1 From aa6d868ac31cd684738f7f18b4ee5404f6993c71 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 24 Mar 2011 11:24:17 -0700 Subject: Removed q_record and p_record, which used to wrap a msg_status in Mnesia; use msg_status directly instead. --- src/rabbit_mnesia_queue.erl | 66 +++++++++++++++++++++------------------------ src/rabbit_ram_queue.erl | 9 +++---- 2 files changed, 35 insertions(+), 40 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 0d6deae0..dd72e1ce 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -36,10 +36,6 @@ -record(tx, { to_pub, to_ack }). --record(q_record, { seq_id, msg_status }). - --record(p_record, { seq_id, msg_status }). - -include("rabbit.hrl"). -type(maybe(T) :: nothing | {just, T}). @@ -73,7 +69,7 @@ -spec delete_nonpersistent_msgs(atom()) -> ok. -spec(internal_fetch(true, state()) -> fetch_result(ack()); - (false, state()) -> fetch_result(undefined)). + (false, state()) -> fetch_result(undefined)). -spec internal_tx_commit([pub()], [seq_id()], @@ -124,20 +120,30 @@ stop() -> ok. init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> {QTable, PTable} = tables(QueueName), case Recover of - false -> {atomic, ok} = mnesia:delete_table(QTable), - {atomic, ok} = mnesia:delete_table(PTable); + false -> case mnesia:delete_table(QTable) of + {atomic, ok} -> ok; + {aborted, {no_exists, QTable}} -> ok + end, + case mnesia:delete_table(PTable) of + {atomic, ok} -> ok; + {aborted, {no_exists, PTable}} -> ok + end; true -> ok end, - create_table(QTable, 'q_record', 'ordered_set', record_info(fields, - q_record)), - create_table(PTable, 'p_record', 'set', record_info(fields, p_record)), + ok = create_table( + QTable, + 'msg_status', + 'ordered_set', + record_info(fields, msg_status)), + ok = create_table( + PTable, 'msg_status', 'set', record_info(fields, msg_status)), {atomic, State} = mnesia:transaction( fun () -> case IsDurable of - false -> clear_table(QTable), - clear_table(PTable); - true -> delete_nonpersistent_msgs(QTable) + false -> ok = clear_table(QTable), + ok = clear_table(PTable); + true -> ok = delete_nonpersistent_msgs(QTable) end, NextSeqId = case mnesia:first(QTable) of '$end_of_table' -> 0; @@ -158,8 +164,8 @@ terminate(State = #state { q_table = QTable, p_table = PTable }) -> delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> {atomic, _} = - mnesia:transaction(fun () -> clear_table(QTable), - clear_table(PTable) + mnesia:transaction(fun () -> ok = clear_table(QTable), + ok = clear_table(PTable) end), {atomic, ok} = mnesia:dump_tables([QTable, PTable]), State. @@ -167,7 +173,7 @@ delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> purge(State = #state { q_table = QTable }) -> {atomic, Result} = mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), - clear_table(QTable), + ok = clear_table(QTable), {LQ, State} end), Result. @@ -191,7 +197,7 @@ publish_delivered(true, {atomic, State1} = mnesia:transaction( fun () -> - add_pending_ack(MsgStatus, State), + ok = add_pending_ack(MsgStatus, State), State #state { next_seq_id = SeqId + 1 } end), {SeqId, confirm([{Msg, Props}], State1)}. @@ -310,8 +316,7 @@ clear_table(Table) -> delete_nonpersistent_msgs(QTable) -> lists:foreach( fun (Key) -> - [#q_record { seq_id = Key, msg_status = MsgStatus }] = - mnesia:read(QTable, Key, 'read'), + [MsgStatus] = mnesia:read(QTable, Key, 'read'), case MsgStatus of #msg_status { msg = #basic_message { is_persistent = true }} -> ok; @@ -344,10 +349,7 @@ internal_publish(Msg, msg = Msg, props = Props, is_delivered = IsDelivered }, - ok = mnesia:write( - QTable, - #q_record { seq_id = SeqId, msg_status = MsgStatus }, - 'write'), + ok = mnesia:write(QTable, MsgStatus, 'write'), State #state { next_seq_id = SeqId + 1 }. internal_ack(SeqIds, State) -> @@ -368,8 +370,7 @@ internal_dropwhile(Pred, State) -> q_pop(#state { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; - SeqId -> [#q_record { seq_id = SeqId, msg_status = MsgStatus }] = - mnesia:read(QTable, SeqId, 'read'), + SeqId -> [MsgStatus] = mnesia:read(QTable, SeqId, 'read'), ok = mnesia:delete(QTable, SeqId, 'write'), {just, MsgStatus} end. @@ -377,8 +378,7 @@ q_pop(#state { q_table = QTable }) -> q_peek(#state { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; - SeqId -> [#q_record { seq_id = SeqId, msg_status = MsgStatus }] = - mnesia:read(QTable, SeqId, 'read'), + SeqId -> [MsgStatus] = mnesia:read(QTable, SeqId, 'read'), {just, MsgStatus} end. @@ -387,7 +387,7 @@ post_pop(true, seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, State = #state { q_table = QTable }) -> LQ = length(mnesia:all_keys(QTable)), - add_pending_ack(MsgStatus #msg_status { is_delivered = true }, State), + ok = add_pending_ack(MsgStatus #msg_status { is_delivered = true }, State), {Msg, IsDelivered, SeqId, LQ}; post_pop(false, #msg_status { msg = Msg, is_delivered = IsDelivered }, @@ -395,18 +395,14 @@ post_pop(false, LQ = length(mnesia:all_keys(QTable)), {Msg, IsDelivered, undefined, LQ}. -add_pending_ack(MsgStatus = #msg_status { seq_id = SeqId }, - #state { p_table = PTable }) -> - ok = mnesia:write(PTable, - #p_record { seq_id = SeqId, msg_status = MsgStatus }, - 'write'), +add_pending_ack(MsgStatus, #state { p_table = PTable }) -> + ok = mnesia:write(PTable, MsgStatus, 'write'), ok. del_pending_acks(F, SeqIds, State = #state { p_table = PTable }) -> lists:foldl( fun (SeqId, S) -> - [#p_record { msg_status = MsgStatus }] = - mnesia:read(PTable, SeqId, 'read'), + [MsgStatus] = mnesia:read(PTable, SeqId, 'read'), ok = mnesia:delete(PTable, SeqId, 'write'), F(MsgStatus, S) end, diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index 7300b4cc..f134a4f5 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -43,11 +43,10 @@ confirmed :: gb_set(), txn_dict :: dict() }). --type(msg_status() :: - #msg_status { seq_id :: seq_id(), - msg :: rabbit_types:basic_message(), - props :: rabbit_types:message_properties(), - is_delivered :: boolean() }). +-type(msg_status() :: #msg_status { seq_id :: seq_id(), + msg :: rabbit_types:basic_message(), + props :: rabbit_types:message_properties(), + is_delivered :: boolean() }). -type(tx() :: #tx { to_pub :: [pub()], to_ack :: [seq_id()] }). -- cgit v1.2.1 From 7c09fd184da8d8b692b72b06fbc9baa4566dfe2c Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 24 Mar 2011 17:02:20 -0700 Subject: Converted length(mnesia:all_keys(Table)) to mnesia:table_info(Table, size). Removed transactionality. --- src/rabbit_mnesia_queue.erl | 171 ++++++++++++++++---------------------------- 1 file changed, 63 insertions(+), 108 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index dd72e1ce..8889c631 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -64,8 +64,6 @@ -spec create_table(atom(), atom(), atom(), [atom()]) -> ok. --spec clear_table(atom()) -> ok. - -spec delete_nonpersistent_msgs(atom()) -> ok. -spec(internal_fetch(true, state()) -> fetch_result(ack()); @@ -137,25 +135,21 @@ init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> record_info(fields, msg_status)), ok = create_table( PTable, 'msg_status', 'set', record_info(fields, msg_status)), - {atomic, State} = - mnesia:transaction( - fun () -> - case IsDurable of - false -> ok = clear_table(QTable), - ok = clear_table(PTable); - true -> ok = delete_nonpersistent_msgs(QTable) - end, - NextSeqId = case mnesia:first(QTable) of - '$end_of_table' -> 0; - SeqId -> SeqId - end, - #state { q_table = QTable, - p_table = PTable, - next_seq_id = NextSeqId, - confirmed = gb_sets:new(), - txn_dict = dict:new() } - end), - State. + case IsDurable of + false -> {atomic, ok} = mnesia:clear_table(QTable), + {atomic, ok} = mnesia:clear_table(PTable), + ok; + true -> ok = delete_nonpersistent_msgs(QTable) + end, + NextSeqId = case mnesia:dirty_first(QTable) of + '$end_of_table' -> 0; + SeqId -> SeqId + end, + #state { q_table = QTable, + p_table = PTable, + next_seq_id = NextSeqId, + confirmed = gb_sets:new(), + txn_dict = dict:new() }. terminate(State = #state { q_table = QTable, p_table = PTable }) -> {atomic, ok} = mnesia:clear_table(PTable), @@ -163,25 +157,18 @@ terminate(State = #state { q_table = QTable, p_table = PTable }) -> State. delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> - {atomic, _} = - mnesia:transaction(fun () -> ok = clear_table(QTable), - ok = clear_table(PTable) - end), + {atomic, ok} = mnesia:clear_table(QTable), + {atomic, ok} = mnesia:clear_table(PTable), {atomic, ok} = mnesia:dump_tables([QTable, PTable]), State. purge(State = #state { q_table = QTable }) -> - {atomic, Result} = - mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), - ok = clear_table(QTable), - {LQ, State} - end), - Result. + LQ = mnesia:table_info(QTable, size), + {atomic, ok} = mnesia:clear_table(QTable), + {LQ, State}. publish(Msg, Props, State) -> - {atomic, State1} = - mnesia:transaction( - fun () -> internal_publish(Msg, Props, false, State) end), + State1 = internal_publish(Msg, Props, false, State), confirm([{Msg, Props}], State1). publish_delivered(false, Msg, Props, State) -> @@ -194,31 +181,20 @@ publish_delivered(true, msg = Msg, props = Props, is_delivered = true }, - {atomic, State1} = - mnesia:transaction( - fun () -> - ok = add_pending_ack(MsgStatus, State), - State #state { next_seq_id = SeqId + 1 } - end), + ok = add_pending_ack(MsgStatus, State), + State1 = State #state { next_seq_id = SeqId + 1 }, {SeqId, confirm([{Msg, Props}], State1)}. drain_confirmed(State = #state { confirmed = Confirmed }) -> {gb_sets:to_list(Confirmed), State #state { confirmed = gb_sets:new() }}. -dropwhile(Pred, State) -> - {atomic, Result} = - mnesia:transaction(fun () -> internal_dropwhile(Pred, State) end), - Result. +dropwhile(Pred, State) -> internal_dropwhile(Pred, State). fetch(AckRequired, State) -> - {atomic, FetchResult} = - mnesia:transaction(fun () -> internal_fetch(AckRequired, State) end), + FetchResult = internal_fetch(AckRequired, State), {FetchResult, State}. -ack(SeqIds, State) -> - {atomic, Result} = - mnesia:transaction(fun () -> internal_ack(SeqIds, State) end), - Result. +ack(SeqIds, State) -> internal_ack(SeqIds, State). tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), @@ -238,39 +214,26 @@ tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), - {atomic, State1} = mnesia:transaction( - fun () -> - internal_tx_commit( - Pubs, - SeqIds, - PropsF, - State #state { txn_dict = erase_tx(Txn, TxnDict) }) - end), + State1 = internal_tx_commit( + Pubs, + SeqIds, + PropsF, + State #state { txn_dict = erase_tx(Txn, TxnDict) }), F(), {SeqIds, confirm(Pubs, State1)}. requeue(SeqIds, PropsF, State) -> - {atomic, Result} = - mnesia:transaction( - fun () -> del_pending_acks( - fun (#msg_status { msg = Msg, props = Props }, S) -> - internal_publish( - Msg, PropsF(Props), true, S) - end, - SeqIds, - State) - end), - Result. - -len(#state { q_table = QTable }) -> - {atomic, Result} = - mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), - Result. - -is_empty(#state { q_table = QTable }) -> - {atomic, Result} = - mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), - Result. + del_pending_acks( + fun (#msg_status { msg = Msg, props = Props }, S) -> + internal_publish( + Msg, PropsF(Props), true, S) + end, + SeqIds, + State). + +len(#state { q_table = QTable }) -> mnesia:table_info(QTable, size). + +is_empty(#state { q_table = QTable }) -> 0 == mnesia:table_info(QTable, size). set_ram_duration_target(_, State) -> State. @@ -285,13 +248,9 @@ handle_pre_hibernate(State) -> State. status(#state { q_table = QTable, p_table = PTable, next_seq_id = NextSeqId }) -> - {atomic, Result} = - mnesia:transaction( - fun () -> LQ = length(mnesia:all_keys(QTable)), - LP = length(mnesia:all_keys(PTable)), - [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] - end), - Result. + LQ = mnesia:table_info(QTable, size), + LP = mnesia:table_info(PTable, size), + [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}]. create_table(Table, RecordName, Type, Attributes) -> case mnesia:create_table(Table, [{record_name, RecordName}, @@ -306,24 +265,17 @@ create_table(Table, RecordName, Type, Attributes) -> ok end. -clear_table(Table) -> - case mnesia:first(Table) of - '$end_of_table' -> ok; - Key -> ok = mnesia:delete(Table, Key, 'write'), - clear_table(Table) - end. - delete_nonpersistent_msgs(QTable) -> lists:foreach( fun (Key) -> - [MsgStatus] = mnesia:read(QTable, Key, 'read'), + [MsgStatus] = mnesia:dirty_read(QTable, Key), case MsgStatus of #msg_status { msg = #basic_message { is_persistent = true }} -> ok; - _ -> ok = mnesia:delete(QTable, Key, 'write') + _ -> ok = mnesia:dirty_delete(QTable, Key) end end, - mnesia:all_keys(QTable)). + mnesia:dirty_all_keys(QTable)). internal_fetch(AckRequired, State) -> case q_pop(State) of @@ -349,7 +301,7 @@ internal_publish(Msg, msg = Msg, props = Props, is_delivered = IsDelivered }, - ok = mnesia:write(QTable, MsgStatus, 'write'), + ok = mnesia:dirty_write(QTable, MsgStatus), State #state { next_seq_id = SeqId + 1 }. internal_ack(SeqIds, State) -> @@ -368,17 +320,17 @@ internal_dropwhile(Pred, State) -> end. q_pop(#state { q_table = QTable }) -> - case mnesia:first(QTable) of + case mnesia:dirty_first(QTable) of '$end_of_table' -> nothing; - SeqId -> [MsgStatus] = mnesia:read(QTable, SeqId, 'read'), - ok = mnesia:delete(QTable, SeqId, 'write'), + SeqId -> [MsgStatus] = mnesia:dirty_read(QTable, SeqId), + ok = mnesia:dirty_delete(QTable, SeqId), {just, MsgStatus} end. q_peek(#state { q_table = QTable }) -> - case mnesia:first(QTable) of + case mnesia:dirty_first(QTable) of '$end_of_table' -> nothing; - SeqId -> [MsgStatus] = mnesia:read(QTable, SeqId, 'read'), + SeqId -> [MsgStatus] = mnesia:dirty_read(QTable, SeqId), {just, MsgStatus} end. @@ -386,24 +338,27 @@ post_pop(true, MsgStatus = #msg_status { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, State = #state { q_table = QTable }) -> - LQ = length(mnesia:all_keys(QTable)), + LQ = mnesia:table_info(QTable, size), + LQ2 = length(mnesia:dirty_all_keys(QTable)), + LQ = LQ2, ok = add_pending_ack(MsgStatus #msg_status { is_delivered = true }, State), {Msg, IsDelivered, SeqId, LQ}; post_pop(false, #msg_status { msg = Msg, is_delivered = IsDelivered }, #state { q_table = QTable }) -> - LQ = length(mnesia:all_keys(QTable)), + LQ = mnesia:table_info(QTable, size), + LQ2 = length(mnesia:dirty_all_keys(QTable)), + LQ = LQ2, {Msg, IsDelivered, undefined, LQ}. add_pending_ack(MsgStatus, #state { p_table = PTable }) -> - ok = mnesia:write(PTable, MsgStatus, 'write'), - ok. + ok = mnesia:dirty_write(PTable, MsgStatus). del_pending_acks(F, SeqIds, State = #state { p_table = PTable }) -> lists:foldl( fun (SeqId, S) -> - [MsgStatus] = mnesia:read(PTable, SeqId, 'read'), - ok = mnesia:delete(PTable, SeqId, 'write'), + [MsgStatus] = mnesia:dirty_read(PTable, SeqId), + ok = mnesia:dirty_delete(PTable, SeqId), F(MsgStatus, S) end, State, -- cgit v1.2.1 From 4e592ab7a16324e59788eb1cee68ee3de4c535f6 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Thu, 24 Mar 2011 21:06:27 -0700 Subject: Brought transactions back, as system is otherwise unreliable. --- src/rabbit_mnesia_queue.erl | 170 ++++++++++++++++++++++++++++---------------- 1 file changed, 107 insertions(+), 63 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 8889c631..18b921a6 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -64,6 +64,8 @@ -spec create_table(atom(), atom(), atom(), [atom()]) -> ok. +-spec clear_table(atom()) -> ok. + -spec delete_nonpersistent_msgs(atom()) -> ok. -spec(internal_fetch(true, state()) -> fetch_result(ack()); @@ -135,21 +137,25 @@ init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> record_info(fields, msg_status)), ok = create_table( PTable, 'msg_status', 'set', record_info(fields, msg_status)), - case IsDurable of - false -> {atomic, ok} = mnesia:clear_table(QTable), - {atomic, ok} = mnesia:clear_table(PTable), - ok; - true -> ok = delete_nonpersistent_msgs(QTable) - end, - NextSeqId = case mnesia:dirty_first(QTable) of - '$end_of_table' -> 0; - SeqId -> SeqId - end, - #state { q_table = QTable, - p_table = PTable, - next_seq_id = NextSeqId, - confirmed = gb_sets:new(), - txn_dict = dict:new() }. + {atomic, State} = + mnesia:transaction( + fun () -> + case IsDurable of + false -> ok = clear_table(QTable), + ok = clear_table(PTable); + true -> ok = delete_nonpersistent_msgs(QTable) + end, + NextSeqId = case mnesia:first(QTable) of + '$end_of_table' -> 0; + SeqId -> SeqId + end, + #state { q_table = QTable, + p_table = PTable, + next_seq_id = NextSeqId, + confirmed = gb_sets:new(), + txn_dict = dict:new() } + end), + State. terminate(State = #state { q_table = QTable, p_table = PTable }) -> {atomic, ok} = mnesia:clear_table(PTable), @@ -157,18 +163,25 @@ terminate(State = #state { q_table = QTable, p_table = PTable }) -> State. delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> - {atomic, ok} = mnesia:clear_table(QTable), - {atomic, ok} = mnesia:clear_table(PTable), + {atomic, _} = + mnesia:transaction(fun () -> ok = clear_table(QTable), + ok = clear_table(PTable) + end), {atomic, ok} = mnesia:dump_tables([QTable, PTable]), State. purge(State = #state { q_table = QTable }) -> - LQ = mnesia:table_info(QTable, size), - {atomic, ok} = mnesia:clear_table(QTable), - {LQ, State}. + {atomic, Result} = + mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), + ok = clear_table(QTable), + {LQ, State} + end), + Result. publish(Msg, Props, State) -> - State1 = internal_publish(Msg, Props, false, State), + {atomic, State1} = + mnesia:transaction( + fun () -> internal_publish(Msg, Props, false, State) end), confirm([{Msg, Props}], State1). publish_delivered(false, Msg, Props, State) -> @@ -181,20 +194,31 @@ publish_delivered(true, msg = Msg, props = Props, is_delivered = true }, - ok = add_pending_ack(MsgStatus, State), - State1 = State #state { next_seq_id = SeqId + 1 }, + {atomic, State1} = + mnesia:transaction( + fun () -> + ok = add_pending_ack(MsgStatus, State), + State #state { next_seq_id = SeqId + 1 } + end), {SeqId, confirm([{Msg, Props}], State1)}. drain_confirmed(State = #state { confirmed = Confirmed }) -> {gb_sets:to_list(Confirmed), State #state { confirmed = gb_sets:new() }}. -dropwhile(Pred, State) -> internal_dropwhile(Pred, State). +dropwhile(Pred, State) -> + {atomic, Result} = + mnesia:transaction(fun () -> internal_dropwhile(Pred, State) end), + Result. fetch(AckRequired, State) -> - FetchResult = internal_fetch(AckRequired, State), + {atomic, FetchResult} = + mnesia:transaction(fun () -> internal_fetch(AckRequired, State) end), {FetchResult, State}. -ack(SeqIds, State) -> internal_ack(SeqIds, State). +ack(SeqIds, State) -> + {atomic, Result} = + mnesia:transaction(fun () -> internal_ack(SeqIds, State) end), + Result. tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), @@ -214,26 +238,39 @@ tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), - State1 = internal_tx_commit( - Pubs, - SeqIds, - PropsF, - State #state { txn_dict = erase_tx(Txn, TxnDict) }), + {atomic, State1} = mnesia:transaction( + fun () -> + internal_tx_commit( + Pubs, + SeqIds, + PropsF, + State #state { txn_dict = erase_tx(Txn, TxnDict) }) + end), F(), {SeqIds, confirm(Pubs, State1)}. requeue(SeqIds, PropsF, State) -> - del_pending_acks( - fun (#msg_status { msg = Msg, props = Props }, S) -> - internal_publish( - Msg, PropsF(Props), true, S) - end, - SeqIds, - State). - -len(#state { q_table = QTable }) -> mnesia:table_info(QTable, size). - -is_empty(#state { q_table = QTable }) -> 0 == mnesia:table_info(QTable, size). + {atomic, Result} = + mnesia:transaction( + fun () -> del_pending_acks( + fun (#msg_status { msg = Msg, props = Props }, S) -> + internal_publish( + Msg, PropsF(Props), true, S) + end, + SeqIds, + State) + end), + Result. + +len(#state { q_table = QTable }) -> + {atomic, Result} = + mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), + Result. + +is_empty(#state { q_table = QTable }) -> + {atomic, Result} = + mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), + Result. set_ram_duration_target(_, State) -> State. @@ -248,9 +285,13 @@ handle_pre_hibernate(State) -> State. status(#state { q_table = QTable, p_table = PTable, next_seq_id = NextSeqId }) -> - LQ = mnesia:table_info(QTable, size), - LP = mnesia:table_info(PTable, size), - [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}]. + {atomic, Result} = + mnesia:transaction( + fun () -> LQ = length(mnesia:all_keys(QTable)), + LP = length(mnesia:all_keys(PTable)), + [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] + end), + Result. create_table(Table, RecordName, Type, Attributes) -> case mnesia:create_table(Table, [{record_name, RecordName}, @@ -265,17 +306,24 @@ create_table(Table, RecordName, Type, Attributes) -> ok end. +clear_table(Table) -> + case mnesia:first(Table) of + '$end_of_table' -> ok; + Key -> ok = mnesia:delete(Table, Key, 'write'), + clear_table(Table) + end. + delete_nonpersistent_msgs(QTable) -> lists:foreach( fun (Key) -> - [MsgStatus] = mnesia:dirty_read(QTable, Key), + [MsgStatus] = mnesia:read(QTable, Key, 'read'), case MsgStatus of #msg_status { msg = #basic_message { is_persistent = true }} -> ok; - _ -> ok = mnesia:dirty_delete(QTable, Key) + _ -> ok = mnesia:delete(QTable, Key, 'write') end end, - mnesia:dirty_all_keys(QTable)). + mnesia:all_keys(QTable)). internal_fetch(AckRequired, State) -> case q_pop(State) of @@ -301,7 +349,7 @@ internal_publish(Msg, msg = Msg, props = Props, is_delivered = IsDelivered }, - ok = mnesia:dirty_write(QTable, MsgStatus), + ok = mnesia:write(QTable, MsgStatus, 'write'), State #state { next_seq_id = SeqId + 1 }. internal_ack(SeqIds, State) -> @@ -320,17 +368,17 @@ internal_dropwhile(Pred, State) -> end. q_pop(#state { q_table = QTable }) -> - case mnesia:dirty_first(QTable) of + case mnesia:first(QTable) of '$end_of_table' -> nothing; - SeqId -> [MsgStatus] = mnesia:dirty_read(QTable, SeqId), - ok = mnesia:dirty_delete(QTable, SeqId), + SeqId -> [MsgStatus] = mnesia:read(QTable, SeqId, 'read'), + ok = mnesia:delete(QTable, SeqId, 'write'), {just, MsgStatus} end. q_peek(#state { q_table = QTable }) -> - case mnesia:dirty_first(QTable) of + case mnesia:first(QTable) of '$end_of_table' -> nothing; - SeqId -> [MsgStatus] = mnesia:dirty_read(QTable, SeqId), + SeqId -> [MsgStatus] = mnesia:read(QTable, SeqId, 'read'), {just, MsgStatus} end. @@ -338,27 +386,23 @@ post_pop(true, MsgStatus = #msg_status { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, State = #state { q_table = QTable }) -> - LQ = mnesia:table_info(QTable, size), - LQ2 = length(mnesia:dirty_all_keys(QTable)), - LQ = LQ2, + LQ = length(mnesia:all_keys(QTable)), ok = add_pending_ack(MsgStatus #msg_status { is_delivered = true }, State), {Msg, IsDelivered, SeqId, LQ}; post_pop(false, #msg_status { msg = Msg, is_delivered = IsDelivered }, #state { q_table = QTable }) -> - LQ = mnesia:table_info(QTable, size), - LQ2 = length(mnesia:dirty_all_keys(QTable)), - LQ = LQ2, + LQ = length(mnesia:all_keys(QTable)), {Msg, IsDelivered, undefined, LQ}. add_pending_ack(MsgStatus, #state { p_table = PTable }) -> - ok = mnesia:dirty_write(PTable, MsgStatus). + ok = mnesia:write(PTable, MsgStatus, 'write'). del_pending_acks(F, SeqIds, State = #state { p_table = PTable }) -> lists:foldl( fun (SeqId, S) -> - [MsgStatus] = mnesia:dirty_read(PTable, SeqId), - ok = mnesia:dirty_delete(PTable, SeqId), + [MsgStatus] = mnesia:read(PTable, SeqId, 'read'), + ok = mnesia:delete(PTable, SeqId, 'write'), F(MsgStatus, S) end, State, -- cgit v1.2.1 From 9a691de3894f11e903b1b74b86b231d0a34d6d46 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Fri, 25 Mar 2011 09:06:49 -0700 Subject: Most changes to queue implementations. Brought transactions back in rabbit_mnesia_queue. Speeded up code. --- src/rabbit_mnesia_queue.erl | 51 +++++++++++++++++++++++---------------------- 1 file changed, 26 insertions(+), 25 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 18b921a6..c5e91ed0 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -111,6 +111,8 @@ -spec erase_tx(rabbit_types:txn(), dict()) -> dict(). +-spec table_length(atom()) -> non_neg_integer(). + -spec confirm([pub()], state()) -> state(). start(_DurableQueues) -> ok. @@ -172,7 +174,7 @@ delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> purge(State = #state { q_table = QTable }) -> {atomic, Result} = - mnesia:transaction(fun () -> LQ = length(mnesia:all_keys(QTable)), + mnesia:transaction(fun () -> LQ = table_length(QTable), ok = clear_table(QTable), {LQ, State} end), @@ -263,13 +265,12 @@ requeue(SeqIds, PropsF, State) -> Result. len(#state { q_table = QTable }) -> - {atomic, Result} = - mnesia:transaction(fun () -> length(mnesia:all_keys(QTable)) end), + {atomic, Result} = mnesia:transaction(fun () -> table_length(QTable) end), Result. is_empty(#state { q_table = QTable }) -> {atomic, Result} = - mnesia:transaction(fun () -> 0 == length(mnesia:all_keys(QTable)) end), + mnesia:transaction(fun () -> 0 == table_length(QTable) end), Result. set_ram_duration_target(_, State) -> State. @@ -287,9 +288,9 @@ status(#state { q_table = QTable, next_seq_id = NextSeqId }) -> {atomic, Result} = mnesia:transaction( - fun () -> LQ = length(mnesia:all_keys(QTable)), - LP = length(mnesia:all_keys(PTable)), - [{len, LQ}, {next_seq_id, NextSeqId}, {acks, LP}] + fun () -> [{len, table_length(QTable)}, + {next_seq_id, NextSeqId}, + {acks, table_length(PTable)}] end), Result. @@ -307,23 +308,22 @@ create_table(Table, RecordName, Type, Attributes) -> end. clear_table(Table) -> - case mnesia:first(Table) of - '$end_of_table' -> ok; - Key -> ok = mnesia:delete(Table, Key, 'write'), - clear_table(Table) - end. + mnesia:foldl(fun (#msg_status { seq_id = SeqId }, ok) -> + ok = mnesia:delete(Table, SeqId, 'write') + end, + ok, + Table). delete_nonpersistent_msgs(QTable) -> - lists:foreach( - fun (Key) -> - [MsgStatus] = mnesia:read(QTable, Key, 'read'), - case MsgStatus of - #msg_status { msg = #basic_message { - is_persistent = true }} -> ok; - _ -> ok = mnesia:delete(QTable, Key, 'write') - end - end, - mnesia:all_keys(QTable)). + mnesia:foldl(fun (MsgStatus = #msg_status { seq_id = SeqId }, ok) -> + case MsgStatus of + #msg_status { msg = #basic_message { + is_persistent = true }} -> ok; + _ -> ok = mnesia:delete(QTable, SeqId, 'write') + end + end, + ok, + QTable). internal_fetch(AckRequired, State) -> case q_pop(State) of @@ -386,14 +386,13 @@ post_pop(true, MsgStatus = #msg_status { seq_id = SeqId, msg = Msg, is_delivered = IsDelivered }, State = #state { q_table = QTable }) -> - LQ = length(mnesia:all_keys(QTable)), + LQ = table_length(QTable), ok = add_pending_ack(MsgStatus #msg_status { is_delivered = true }, State), {Msg, IsDelivered, SeqId, LQ}; post_pop(false, #msg_status { msg = Msg, is_delivered = IsDelivered }, #state { q_table = QTable }) -> - LQ = length(mnesia:all_keys(QTable)), - {Msg, IsDelivered, undefined, LQ}. + {Msg, IsDelivered, undefined, table_length(QTable)}. add_pending_ack(MsgStatus, #state { p_table = PTable }) -> ok = mnesia:write(PTable, MsgStatus, 'write'). @@ -424,6 +423,8 @@ store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). +table_length(Table) -> mnesia:foldl(fun (_, N) -> N + 1 end, 0, Table). + confirm(Pubs, State = #state { confirmed = Confirmed }) -> MsgIds = [MsgId || {#basic_message { id = MsgId }, -- cgit v1.2.1 From def8eb73452ce2c2e9604c1585693eb6f31e8c4e Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Sun, 27 Mar 2011 22:47:23 -0700 Subject: Passes all tests (except as noted). --- src/rabbit_mnesia_queue.erl | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index c5e91ed0..72a67946 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -159,17 +159,14 @@ init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> end), State. -terminate(State = #state { q_table = QTable, p_table = PTable }) -> +terminate(State = #state { p_table = PTable }) -> {atomic, ok} = mnesia:clear_table(PTable), - {atomic, ok} = mnesia:dump_tables([QTable, PTable]), State. delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> - {atomic, _} = - mnesia:transaction(fun () -> ok = clear_table(QTable), - ok = clear_table(PTable) - end), - {atomic, ok} = mnesia:dump_tables([QTable, PTable]), + {atomic, _} = mnesia:transaction(fun () -> ok = clear_table(QTable), + ok = clear_table(PTable) + end), State. purge(State = #state { q_table = QTable }) -> @@ -298,7 +295,7 @@ create_table(Table, RecordName, Type, Attributes) -> case mnesia:create_table(Table, [{record_name, RecordName}, {type, Type}, {attributes, Attributes}, - {ram_copies, [node()]}]) of + {disc_copies, [node()]}]) of {atomic, ok} -> ok; {aborted, {already_exists, Table}} -> RecordName = mnesia:table_info(Table, record_name), -- cgit v1.2.1 From bdf7a46bc9e7fa388e87878834971472e4616092 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 28 Mar 2011 17:02:33 -0700 Subject: Draft updates to rabbit_ram_queue. --- src/rabbit_ram_queue.erl | 93 ++++++++++++++++-------------------------------- 1 file changed, 30 insertions(+), 63 deletions(-) diff --git a/src/rabbit_ram_queue.erl b/src/rabbit_ram_queue.erl index f134a4f5..a3f98853 100644 --- a/src/rabbit_ram_queue.erl +++ b/src/rabbit_ram_queue.erl @@ -36,20 +36,16 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id()). --type(state() :: #state { q :: queue(), - q_len :: non_neg_integer(), - pending_acks :: dict(), - next_seq_id :: seq_id(), - confirmed :: gb_set(), - txn_dict :: dict() }). +-type(state() :: #state { q :: queue(), q_len :: non_neg_integer(), + pending_acks :: dict(), next_seq_id :: seq_id(), + confirmed :: gb_set(), txn_dict :: dict() }). -type(msg_status() :: #msg_status { seq_id :: seq_id(), msg :: rabbit_types:basic_message(), props :: rabbit_types:message_properties(), is_delivered :: boolean() }). --type(tx() :: #tx { to_pub :: [pub()], - to_ack :: [seq_id()] }). +-type(tx() :: #tx { to_pub :: [pub()], to_ack :: [seq_id()] }). -type(pub() :: { rabbit_types:basic_message(), rabbit_types:message_properties() }). @@ -59,16 +55,12 @@ -spec(internal_fetch(true, state()) -> {fetch_result(ack()), state()}; (false, state()) -> {fetch_result(undefined), state()}). --spec internal_tx_commit([pub()], - [seq_id()], - message_properties_transformer(), +-spec internal_tx_commit([pub()], [seq_id()], message_properties_transformer(), state()) -> state(). -spec internal_publish(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - state()) -> + rabbit_types:message_properties(), boolean(), state()) -> state(). -spec(internal_ack/2 :: ([seq_id()], state()) -> state()). @@ -81,17 +73,12 @@ (false, msg_status(), state()) -> {fetch_result(undefined), state()}). --spec del_pending_acks(fun ((msg_status(), state()) -> state()), - [seq_id()], +-spec del_pending_acks(fun ((msg_status(), state()) -> state()), [seq_id()], state()) -> state(). -spec lookup_tx(rabbit_types:txn(), dict()) -> tx(). --spec store_tx(rabbit_types:txn(), tx(), dict()) -> dict(). - --spec erase_tx(rabbit_types:txn(), dict()) -> dict(). - -spec confirm([pub()], state()) -> state(). start(_DurableQueues) -> ok. @@ -99,11 +86,8 @@ start(_DurableQueues) -> ok. stop() -> ok. init(_QueueName, _IsDurable, _Recover, _asyncCallback, _SyncCallback) -> - #state { q = queue:new(), - q_len = 0, - pending_acks = dict:new(), - next_seq_id = 0, - confirmed = gb_sets:new(), + #state { q = queue:new(), q_len = 0, pending_acks = dict:new(), + next_seq_id = 0, confirmed = gb_sets:new(), txn_dict = dict:new() }. terminate(State) -> State #state { pending_acks = dict:new() }. @@ -114,20 +98,17 @@ delete_and_terminate(State) -> purge(State = #state { q_len = QLen }) -> {QLen, State #state { q = queue:new(), q_len = 0 }}. -publish(Msg, Props, State) -> +publish(Msg = #basic_message { is_persistent = false }, Props, State) -> State1 = internal_publish(Msg, Props, false, State), confirm([{Msg, Props}], State1). -publish_delivered(false, Msg, Props, State) -> +publish_delivered(false, Msg = #basic_message { is_persistent = false }, Props, + State = #state { q_len = 0 }) -> {undefined, confirm([{Msg, Props}], State)}; -publish_delivered(true, - Msg, - Props, - State = #state { next_seq_id = SeqId, +publish_delivered(true, Msg = #basic_message { is_persistent = false }, Props, + State = #state { q_len = 0, next_seq_id = SeqId, pending_acks = PendingAcks }) -> - MsgStatus = #msg_status { seq_id = SeqId, - msg = Msg, - props = Props, + MsgStatus = #msg_status { seq_id = SeqId, msg = Msg, props = Props, is_delivered = true }, State1 = State #state { next_seq_id = SeqId + 1, @@ -143,30 +124,29 @@ fetch(AckRequired, State) -> internal_fetch(AckRequired, State). ack(SeqIds, State) -> internal_ack(SeqIds, State). -tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> +tx_publish(Txn, Msg = #basic_message { is_persistent = false }, Props, + State = #state { txn_dict = TxnDict}) -> Tx = #tx { to_pub = Pubs } = lookup_tx(Txn, TxnDict), State #state { txn_dict = - store_tx(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, TxnDict) }. + dict:store(Txn, Tx #tx { to_pub = [{Msg, Props} | Pubs] }, TxnDict) }. tx_ack(Txn, SeqIds, State = #state { txn_dict = TxnDict }) -> Tx = #tx { to_ack = SeqIds0 } = lookup_tx(Txn, TxnDict), State #state { txn_dict = - store_tx(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, TxnDict) }. + dict:store(Txn, Tx #tx { to_ack = SeqIds ++ SeqIds0 }, TxnDict) }. tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds } = lookup_tx(Txn, TxnDict), - {SeqIds, State #state { txn_dict = erase_tx(Txn, TxnDict) }}. + {SeqIds, State #state { txn_dict = dict:erase(Txn, TxnDict) }}. tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), F(), State1 = internal_tx_commit( - Pubs, - SeqIds, - PropsF, - State #state { txn_dict = erase_tx(Txn, TxnDict) }), + Pubs, SeqIds, PropsF, + State #state { txn_dict = dict:erase(Txn, TxnDict) }), {SeqIds, confirm(Pubs, State1)}. requeue(SeqIds, PropsF, State) -> @@ -174,8 +154,7 @@ requeue(SeqIds, PropsF, State) -> fun (#msg_status { msg = Msg, props = Props }, S) -> internal_publish(Msg, PropsF(Props), true, S) end, - SeqIds, - State). + SeqIds, State). len(#state { q_len = QLen }) -> QLen. @@ -191,8 +170,7 @@ idle_timeout(State) -> State. handle_pre_hibernate(State) -> State. -status(#state { q_len = QLen, - pending_acks = PendingAcks, +status(#state { q_len = QLen, pending_acks = PendingAcks, next_seq_id = NextSeqId }) -> [{len, QLen}, {next_seq_id, NextSeqId}, {acks, dict:size(PendingAcks)}]. @@ -200,8 +178,7 @@ internal_fetch(AckRequired, State = #state { q = Q, q_len = QLen }) -> case queue:out(Q) of {empty, _} -> {empty, State}; {{value, MsgStatus}, Q1} -> - post_pop(AckRequired, - MsgStatus, + post_pop(AckRequired, MsgStatus, State #state { q = Q1, q_len = QLen - 1 }) end. @@ -211,18 +188,14 @@ internal_tx_commit(Pubs, SeqIds, PropsF, State) -> fun ({Msg, Props}, S) -> internal_publish(Msg, PropsF(Props), false, S) end, - State1, - lists:reverse(Pubs)). + State1, lists:reverse(Pubs)). -internal_publish(Msg, - Props, - IsDelivered, +internal_publish(Msg, Props, IsDelivered, State = #state { q = Q, q_len = QLen, next_seq_id = SeqId }) -> MsgStatus = #msg_status { seq_id = SeqId, msg = Msg, props = Props, is_delivered = IsDelivered }, - State #state { q = queue:in(MsgStatus, Q), - q_len = QLen + 1, + State #state { q = queue:in(MsgStatus, Q), q_len = QLen + 1, next_seq_id = SeqId + 1 }. internal_ack(SeqIds, State) -> @@ -248,8 +221,7 @@ post_pop(true, {{Msg, IsDelivered, SeqId, QLen}, State #state { pending_acks = dict:store(SeqId, MsgStatus1, PendingAcks) }}; -post_pop(false, - #msg_status { msg = Msg, is_delivered = IsDelivered }, +post_pop(false, #msg_status { msg = Msg, is_delivered = IsDelivered }, State = #state { q_len = QLen }) -> {{Msg, IsDelivered, undefined, QLen}, State}. @@ -260,18 +232,13 @@ del_pending_acks(F, SeqIds, State) -> F(MsgStatus, S #state { pending_acks = dict:erase(SeqId, PendingAcks) }) end, - State, - SeqIds). + State, SeqIds). lookup_tx(Txn, TxnDict) -> case dict:find(Txn, TxnDict) of error -> #tx { to_pub = [], to_ack = [] }; {ok, Tx} -> Tx end. -store_tx(Txn, Tx, TxnDict) -> dict:store(Txn, Tx, TxnDict). - -erase_tx(Txn, TxnDict) -> dict:erase(Txn, TxnDict). - confirm(Pubs, State = #state { confirmed = Confirmed }) -> MsgIds = [MsgId || {#basic_message { id = MsgId }, -- cgit v1.2.1 From b525f3a469bb9c2345bf483b471da976178ee0c9 Mon Sep 17 00:00:00 2001 From: John DeTreville Date: Mon, 28 Mar 2011 19:09:21 -0700 Subject: Stylistic changes to rabbit_mnesia_queue. --- src/rabbit_mnesia_queue.erl | 210 +++++++++++++++++++------------------------- 1 file changed, 91 insertions(+), 119 deletions(-) diff --git a/src/rabbit_mnesia_queue.erl b/src/rabbit_mnesia_queue.erl index 72a67946..baaa74f2 100644 --- a/src/rabbit_mnesia_queue.erl +++ b/src/rabbit_mnesia_queue.erl @@ -30,7 +30,8 @@ -behaviour(rabbit_backing_queue). --record(state, { q_table, p_table, next_seq_id, confirmed, txn_dict }). +-record(state, + { q_table, pending_ack_table, next_seq_id, confirmed, txn_dict }). -record(msg_status, { seq_id, msg, props, is_delivered }). @@ -43,10 +44,8 @@ -type(seq_id() :: non_neg_integer()). -type(ack() :: seq_id()). --type(state() :: #state { q_table :: atom(), - p_table :: atom(), - next_seq_id :: seq_id(), - confirmed :: gb_set(), +-type(state() :: #state { q_table :: atom(), pending_ack_table :: atom(), + next_seq_id :: seq_id(), confirmed :: gb_set(), txn_dict :: dict() }). -type(msg_status() :: #msg_status { msg :: rabbit_types:basic_message(), @@ -54,8 +53,7 @@ props :: rabbit_types:message_properties(), is_delivered :: boolean() }). --type(tx() :: #tx { to_pub :: [pub()], - to_ack :: [seq_id()] }). +-type(tx() :: #tx { to_pub :: [pub()], to_ack :: [seq_id()] }). -type(pub() :: { rabbit_types:basic_message(), rabbit_types:message_properties() }). @@ -71,16 +69,12 @@ -spec(internal_fetch(true, state()) -> fetch_result(ack()); (false, state()) -> fetch_result(undefined)). --spec internal_tx_commit([pub()], - [seq_id()], - message_properties_transformer(), +-spec internal_tx_commit([pub()], [seq_id()], message_properties_transformer(), state()) -> state(). -spec internal_publish(rabbit_types:basic_message(), - rabbit_types:message_properties(), - boolean(), - state()) -> + rabbit_types:message_properties(), boolean(), state()) -> state(). -spec(internal_ack/2 :: ([seq_id()], state()) -> state()). @@ -98,8 +92,7 @@ -spec add_pending_ack(msg_status(), state()) -> ok. --spec del_pending_acks(fun ((msg_status(), state()) -> state()), - [seq_id()], +-spec del_pending_acks(fun ((msg_status(), state()) -> state()), [seq_id()], state()) -> state(). @@ -120,85 +113,77 @@ start(_DurableQueues) -> ok. stop() -> ok. init(QueueName, IsDurable, Recover, _AsyncCallback, _SyncCallback) -> - {QTable, PTable} = tables(QueueName), + {QTable, PendingAckTable} = tables(QueueName), case Recover of false -> case mnesia:delete_table(QTable) of {atomic, ok} -> ok; {aborted, {no_exists, QTable}} -> ok end, - case mnesia:delete_table(PTable) of + case mnesia:delete_table(PendingAckTable) of {atomic, ok} -> ok; - {aborted, {no_exists, PTable}} -> ok + {aborted, {no_exists, PendingAckTable}} -> ok end; true -> ok end, - ok = create_table( - QTable, - 'msg_status', - 'ordered_set', - record_info(fields, msg_status)), - ok = create_table( - PTable, 'msg_status', 'set', record_info(fields, msg_status)), + ok = create_table(QTable, msg_status, ordered_set, + record_info(fields, msg_status)), + ok = create_table(PendingAckTable, msg_status, set, + record_info(fields, msg_status)), {atomic, State} = - mnesia:transaction( + mnesia:sync_transaction( fun () -> case IsDurable of false -> ok = clear_table(QTable), - ok = clear_table(PTable); + ok = clear_table(PendingAckTable); true -> ok = delete_nonpersistent_msgs(QTable) end, - NextSeqId = case mnesia:first(QTable) of + NextSeqId = case mnesia:last(QTable) of '$end_of_table' -> 0; - SeqId -> SeqId + SeqId -> SeqId + 1 end, #state { q_table = QTable, - p_table = PTable, - next_seq_id = NextSeqId, - confirmed = gb_sets:new(), + pending_ack_table = PendingAckTable, + next_seq_id = NextSeqId, confirmed = gb_sets:new(), txn_dict = dict:new() } end), State. -terminate(State = #state { p_table = PTable }) -> - {atomic, ok} = mnesia:clear_table(PTable), +terminate(State = #state { pending_ack_table = PendingAckTable }) -> + {atomic, ok} = mnesia:clear_table(PendingAckTable), State. -delete_and_terminate(State = #state { q_table = QTable, p_table = PTable }) -> - {atomic, _} = mnesia:transaction(fun () -> ok = clear_table(QTable), - ok = clear_table(PTable) - end), +delete_and_terminate(State = #state { q_table = QTable, + pending_ack_table = PendingAckTable }) -> + {atomic, _} = mnesia:sync_transaction( + fun () -> ok = clear_table(QTable), + ok = clear_table(PendingAckTable) + end), State. purge(State = #state { q_table = QTable }) -> - {atomic, Result} = - mnesia:transaction(fun () -> LQ = table_length(QTable), - ok = clear_table(QTable), - {LQ, State} - end), + {atomic, Result} = mnesia:sync_transaction( + fun () -> LQ = table_length(QTable), + ok = clear_table(QTable), + {LQ, State} + end), Result. publish(Msg, Props, State) -> {atomic, State1} = - mnesia:transaction( + mnesia:sync_transaction( fun () -> internal_publish(Msg, Props, false, State) end), confirm([{Msg, Props}], State1). publish_delivered(false, Msg, Props, State) -> {undefined, confirm([{Msg, Props}], State)}; -publish_delivered(true, - Msg, - Props, - State = #state { next_seq_id = SeqId }) -> - MsgStatus = #msg_status { seq_id = SeqId, - msg = Msg, - props = Props, - is_delivered = true }, - {atomic, State1} = - mnesia:transaction( - fun () -> - ok = add_pending_ack(MsgStatus, State), - State #state { next_seq_id = SeqId + 1 } - end), +publish_delivered(true, Msg, Props, State = #state { next_seq_id = SeqId }) -> + MsgStatus = #msg_status { + seq_id = SeqId, msg = Msg, props = Props, is_delivered = true }, + {atomic, State1} = mnesia:sync_transaction( + fun () -> + ok = add_pending_ack(MsgStatus, State), + State #state { next_seq_id = SeqId + 1 } + end), {SeqId, confirm([{Msg, Props}], State1)}. drain_confirmed(State = #state { confirmed = Confirmed }) -> @@ -206,17 +191,17 @@ drain_confirmed(State = #state { confirmed = Confirmed }) -> dropwhile(Pred, State) -> {atomic, Result} = - mnesia:transaction(fun () -> internal_dropwhile(Pred, State) end), + mnesia:sync_transaction(fun () -> internal_dropwhile(Pred, State) end), Result. fetch(AckRequired, State) -> - {atomic, FetchResult} = - mnesia:transaction(fun () -> internal_fetch(AckRequired, State) end), + {atomic, FetchResult} = mnesia:sync_transaction( + fun () -> internal_fetch(AckRequired, State) end), {FetchResult, State}. ack(SeqIds, State) -> - {atomic, Result} = - mnesia:transaction(fun () -> internal_ack(SeqIds, State) end), + {atomic, Result} = mnesia:sync_transaction( + fun () -> internal_ack(SeqIds, State) end), Result. tx_publish(Txn, Msg, Props, State = #state { txn_dict = TxnDict}) -> @@ -237,37 +222,35 @@ tx_rollback(Txn, State = #state { txn_dict = TxnDict }) -> tx_commit(Txn, F, PropsF, State = #state { txn_dict = TxnDict }) -> #tx { to_ack = SeqIds, to_pub = Pubs } = lookup_tx(Txn, TxnDict), - {atomic, State1} = mnesia:transaction( - fun () -> - internal_tx_commit( - Pubs, - SeqIds, - PropsF, - State #state { txn_dict = erase_tx(Txn, TxnDict) }) - end), + {atomic, State1} = + mnesia:sync_transaction( + fun () -> + internal_tx_commit( + Pubs, SeqIds, PropsF, + State #state { txn_dict = erase_tx(Txn, TxnDict) }) + end), F(), {SeqIds, confirm(Pubs, State1)}. requeue(SeqIds, PropsF, State) -> {atomic, Result} = - mnesia:transaction( + mnesia:sync_transaction( fun () -> del_pending_acks( fun (#msg_status { msg = Msg, props = Props }, S) -> - internal_publish( - Msg, PropsF(Props), true, S) + internal_publish(Msg, PropsF(Props), true, S) end, - SeqIds, - State) + SeqIds, State) end), Result. len(#state { q_table = QTable }) -> - {atomic, Result} = mnesia:transaction(fun () -> table_length(QTable) end), + {atomic, Result} = mnesia:sync_transaction( + fun () -> table_length(QTable) end), Result. is_empty(#state { q_table = QTable }) -> {atomic, Result} = - mnesia:transaction(fun () -> 0 == table_length(QTable) end), + mnesia:sync_transaction(fun () -> 0 == table_length(QTable) end), Result. set_ram_duration_target(_, State) -> State. @@ -280,22 +263,20 @@ idle_timeout(State) -> State. handle_pre_hibernate(State) -> State. -status(#state { q_table = QTable, - p_table = PTable, +status(#state { q_table = QTable, pending_ack_table = PendingAckTable, next_seq_id = NextSeqId }) -> {atomic, Result} = - mnesia:transaction( - fun () -> [{len, table_length(QTable)}, - {next_seq_id, NextSeqId}, - {acks, table_length(PTable)}] + mnesia:sync_transaction( + fun () -> [{len, table_length(QTable)}, {next_seq_id, NextSeqId}, + {acks, table_length(PendingAckTable)}] end), Result. create_table(Table, RecordName, Type, Attributes) -> - case mnesia:create_table(Table, [{record_name, RecordName}, - {type, Type}, - {attributes, Attributes}, - {disc_copies, [node()]}]) of + case mnesia:create_table( + Table, + [{record_name, RecordName}, {type, Type}, {attributes, Attributes}, + {disc_copies, rabbit_mnesia:running_clustered_nodes()}]) of {atomic, ok} -> ok; {aborted, {already_exists, Table}} -> RecordName = mnesia:table_info(Table, record_name), @@ -306,20 +287,19 @@ create_table(Table, RecordName, Type, Attributes) -> clear_table(Table) -> mnesia:foldl(fun (#msg_status { seq_id = SeqId }, ok) -> - ok = mnesia:delete(Table, SeqId, 'write') + ok = mnesia:delete(Table, SeqId, write) end, - ok, - Table). + ok, Table). delete_nonpersistent_msgs(QTable) -> mnesia:foldl(fun (MsgStatus = #msg_status { seq_id = SeqId }, ok) -> case MsgStatus of #msg_status { msg = #basic_message { is_persistent = true }} -> ok; - _ -> ok = mnesia:delete(QTable, SeqId, 'write') + _ -> ok = mnesia:delete(QTable, SeqId, write) end end, - ok, + ok, QTable). internal_fetch(AckRequired, State) -> @@ -330,23 +310,16 @@ internal_fetch(AckRequired, State) -> internal_tx_commit(Pubs, SeqIds, PropsF, State) -> State1 = internal_ack(SeqIds, State), - lists:foldl( - fun ({Msg, Props}, S) -> - internal_publish(Msg, PropsF(Props), false, S) - end, - State1, - lists:reverse(Pubs)). + lists:foldl(fun ({Msg, Props}, S) -> + internal_publish(Msg, PropsF(Props), false, S) + end, + State1, lists:reverse(Pubs)). -internal_publish(Msg, - Props, - IsDelivered, +internal_publish(Msg, Props, IsDelivered, State = #state { q_table = QTable, next_seq_id = SeqId }) -> MsgStatus = #msg_status { - seq_id = SeqId, - msg = Msg, - props = Props, - is_delivered = IsDelivered }, - ok = mnesia:write(QTable, MsgStatus, 'write'), + seq_id = SeqId, msg = Msg, props = Props, is_delivered = IsDelivered }, + ok = mnesia:write(QTable, MsgStatus, write), State #state { next_seq_id = SeqId + 1 }. internal_ack(SeqIds, State) -> @@ -367,15 +340,15 @@ internal_dropwhile(Pred, State) -> q_pop(#state { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; - SeqId -> [MsgStatus] = mnesia:read(QTable, SeqId, 'read'), - ok = mnesia:delete(QTable, SeqId, 'write'), + SeqId -> [MsgStatus] = mnesia:read(QTable, SeqId, read), + ok = mnesia:delete(QTable, SeqId, write), {just, MsgStatus} end. q_peek(#state { q_table = QTable }) -> case mnesia:first(QTable) of '$end_of_table' -> nothing; - SeqId -> [MsgStatus] = mnesia:read(QTable, SeqId, 'read'), + SeqId -> [MsgStatus] = mnesia:read(QTable, SeqId, read), {just, MsgStatus} end. @@ -386,23 +359,22 @@ post_pop(true, LQ = table_length(QTable), ok = add_pending_ack(MsgStatus #msg_status { is_delivered = true }, State), {Msg, IsDelivered, SeqId, LQ}; -post_pop(false, - #msg_status { msg = Msg, is_delivered = IsDelivered }, +post_pop(false, #msg_status { msg = Msg, is_delivered = IsDelivered }, #state { q_table = QTable }) -> {Msg, IsDelivered, undefined, table_length(QTable)}. -add_pending_ack(MsgStatus, #state { p_table = PTable }) -> - ok = mnesia:write(PTable, MsgStatus, 'write'). +add_pending_ack(MsgStatus, #state { pending_ack_table = PendingAckTable }) -> + ok = mnesia:write(PendingAckTable, MsgStatus, write). -del_pending_acks(F, SeqIds, State = #state { p_table = PTable }) -> +del_pending_acks( + F, SeqIds, State = #state { pending_ack_table = PendingAckTable }) -> lists:foldl( fun (SeqId, S) -> - [MsgStatus] = mnesia:read(PTable, SeqId, 'read'), - ok = mnesia:delete(PTable, SeqId, 'write'), + [MsgStatus] = mnesia:read(PendingAckTable, SeqId, read), + ok = mnesia:delete(PendingAckTable, SeqId, write), F(MsgStatus, S) end, - State, - SeqIds). + State, SeqIds). tables({resource, VHost, queue, Name}) -> VHost2 = re:split(binary_to_list(VHost), "[/]", [{return, list}]), -- cgit v1.2.1 From 7c2eb7de6ff3c489837ee3b96117f9080ce251c4 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 14:43:54 +0100 Subject: and like all good things, they're compositional --- src/rabbit_misc.erl | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 9156d87e..254a4519 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -555,15 +555,12 @@ append_file(File, Suffix) -> append_file(_, _, "") -> ok; append_file(File, 0, Suffix) -> - case file:open([File, Suffix], [append]) of - {ok, Fd} -> file:close(Fd); - Error -> Error - end; + run_ok_monad([fun (ok) -> file:open([File, Suffix], [append]) end, + fun (Hdl) -> file:close(Hdl) end], ok); append_file(File, _, Suffix) -> - case file:read_file(File) of - {ok, Data} -> write_file(File ++ Suffix, true, Data); - Error -> Error - end. + run_ok_monad([fun (ok) -> file:read_file(File) end, + fun (Data) -> write_file(File ++ Suffix, true, Data) end], + ok). ensure_parent_dirs_exist(Filename) -> case filelib:ensure_dir(Filename) of -- cgit v1.2.1 From 82062578591bfb704517c813a081a6457129c139 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 14:55:30 +0100 Subject: Neater --- src/rabbit_misc.erl | 46 ++++++++++++++++++---------------------------- 1 file changed, 18 insertions(+), 28 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 254a4519..77433c6e 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -709,37 +709,27 @@ version_compare(A, B) -> dropdot(A) -> lists:dropwhile(fun (X) -> X =:= $. end, A). recursive_delete(Files) -> - lists:foldl(fun (Path, ok ) -> recursive_delete1(Path); - (_Path, {error, _Err} = Error) -> Error - end, ok, Files). + run_ok_monad( + [fun (ok) -> recursive_delete1(Path) end || Path <- Files], ok). recursive_delete1(Path) -> case filelib:is_dir(Path) of - false -> case file:delete(Path) of - ok -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Path, Err}} - end; - true -> case file:list_dir(Path) of - {ok, FileNames} -> - case lists:foldl( - fun (FileName, ok) -> - recursive_delete1( - filename:join(Path, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames) of - ok -> - case file:del_dir(Path) of - ok -> ok; - {error, Err} -> {error, {Path, Err}} - end; - {error, _Err} = Error -> - Error - end; - {error, Err} -> - {error, {Path, Err}} - end + false -> + case file:delete(Path) of + ok -> ok; + {error, enoent} -> ok; %% Path doesn't exist anyway + {error, Err} -> {error, {Path, Err}} + end; + true -> + run_ok_monad( + [fun (ok) -> file:list_dir(Path) end, + fun (FileNames) -> + run_ok_monad( + [fun (ok) -> + recursive_delete1(filename:join(Path, FileName)) + end || FileName <- FileNames], ok) + end, + fun (_FileNames) -> file:del_dir(Path) end], ok) end. recursive_copy(Src, Dest) -> -- cgit v1.2.1 From 678e5e92f1de5b67aac1f5f9cca1602474c20c44 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 15:02:53 +0100 Subject: Also neater --- src/rabbit_misc.erl | 35 +++++++++++++---------------------- 1 file changed, 13 insertions(+), 22 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 77433c6e..13a1434e 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -177,11 +177,9 @@ (string(), string(), ('lt' | 'lte' | 'eq' | 'gte' | 'gt')) -> boolean()). -spec(recursive_delete/1 :: - ([file:filename()]) - -> rabbit_types:ok_or_error({file:filename(), any()})). + ([file:filename()]) -> rabbit_types:ok_or_error(any())). -spec(recursive_copy/2 :: - (file:filename(), file:filename()) - -> rabbit_types:ok_or_error({file:filename(), file:filename(), any()})). + (file:filename(), file:filename()) -> rabbit_types:ok_or_error(any())). -spec(dict_cons/3 :: (any(), any(), dict()) -> dict()). -spec(orddict_cons/3 :: (any(), any(), orddict:orddict()) -> orddict:orddict()). -spec(unlink_and_capture_exit/1 :: (pid()) -> 'ok'). @@ -739,24 +737,17 @@ recursive_copy(Src, Dest) -> {error, enoent} -> ok; %% Path doesn't exist anyway {error, Err} -> {error, {Src, Dest, Err}} end; - true -> case file:list_dir(Src) of - {ok, FileNames} -> - case file:make_dir(Dest) of - ok -> - lists:foldl( - fun (FileName, ok) -> - recursive_copy( - filename:join(Src, FileName), - filename:join(Dest, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames); - {error, Err} -> - {error, {Src, Dest, Err}} - end; - {error, Err} -> - {error, {Src, Dest, Err}} - end + true -> run_ok_monad( + [fun (ok) -> file:list_dir(Src) end, + fun (_FileNames) -> file:make_dir(Dest) end, + fun (FileNames) -> + run_ok_monad( + [fun (ok) -> + recursive_copy( + filename:join(Src, FileName), + filename:join(Dest, FileName)) + end || FileName <- FileNames], ok) + end], ok) end. dict_cons(Key, Value, Dict) -> -- cgit v1.2.1 From 61211b09c08037922a93ab420d2764b65a0a11e6 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 16:20:10 +0100 Subject: Add in optional error formatter, thus restoring previous type sigs of recursive_(delete|copy) at minimal niceness cost --- src/rabbit_misc.erl | 38 +++++++++++++++++++++++++------------- 1 file changed, 25 insertions(+), 13 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 13a1434e..c1de5aa7 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -63,7 +63,8 @@ -ifdef(use_specs). --export_type([resource_name/0, thunk/1, const/1, ok_monad_fun/0]). +-export_type([resource_name/0, thunk/1, const/1, + ok_monad_fun_tuple/0, ok_monad_fun/0, ok_monad_error_fun/0]). -type(ok_or_error() :: rabbit_types:ok_or_error(any())). -type(thunk(T) :: fun(() -> T)). @@ -77,8 +78,12 @@ fun ((atom(), [term()]) -> [{digraph:vertex(), digraph_label()}])). -type(graph_edge_fun() :: fun ((atom(), [term()]) -> [{digraph:vertex(), digraph:vertex()}])). + +-type(ok_monad_fun_tuple() :: + ok_monad_fun() | {ok_monad_fun(), ok_monad_error_fun()}). -type(ok_monad_fun() :: fun((any()) -> 'ok' | rabbit_types:ok_or_error2(any(), any()))). +-type(ok_monad_error_fun() :: fun((any()) -> any())). -spec(method_record_type/1 :: (rabbit_framing:amqp_method_record()) -> rabbit_framing:amqp_method_name()). @@ -177,9 +182,10 @@ (string(), string(), ('lt' | 'lte' | 'eq' | 'gte' | 'gt')) -> boolean()). -spec(recursive_delete/1 :: - ([file:filename()]) -> rabbit_types:ok_or_error(any())). --spec(recursive_copy/2 :: - (file:filename(), file:filename()) -> rabbit_types:ok_or_error(any())). + ([file:filename()]) + -> rabbit_types:ok_or_error({file:filename(), any()})). +-spec(recursive_copy/2 :: (file:filename(), file:filename()) + -> rabbit_types:ok_or_error({file:filename(), file:filename(), any()})). -spec(dict_cons/3 :: (any(), any(), dict()) -> dict()). -spec(orddict_cons/3 :: (any(), any(), orddict:orddict()) -> orddict:orddict()). -spec(unlink_and_capture_exit/1 :: (pid()) -> 'ok'). @@ -537,10 +543,14 @@ write_file(Path, Append, Binary) when is_binary(Binary) -> run_ok_monad([], _State) -> ok; run_ok_monad([Fun|Funs], State) -> - case Fun(State) of - ok -> run_ok_monad(Funs, State); - {ok, State1} -> run_ok_monad(Funs, State1); - {error, _Err} = Error -> Error + {F, H} = case Fun of + {_F, _H} = Tuple -> Tuple; + _ -> {Fun, fun (Err) -> Err end} + end, + case F(State) of + ok -> run_ok_monad(Funs, State); + {ok, State1} -> run_ok_monad(Funs, State1); + {error, Error} -> {error, H(Error)} end. append_file(File, Suffix) -> @@ -719,15 +729,16 @@ recursive_delete1(Path) -> {error, Err} -> {error, {Path, Err}} end; true -> + ErrHdlr = fun (Err) -> {Path, Err} end, run_ok_monad( - [fun (ok) -> file:list_dir(Path) end, + [{fun (ok) -> file:list_dir(Path) end, ErrHdlr}, fun (FileNames) -> run_ok_monad( [fun (ok) -> recursive_delete1(filename:join(Path, FileName)) end || FileName <- FileNames], ok) end, - fun (_FileNames) -> file:del_dir(Path) end], ok) + {fun (_FileNames) -> file:del_dir(Path) end, ErrHdlr}], ok) end. recursive_copy(Src, Dest) -> @@ -737,9 +748,10 @@ recursive_copy(Src, Dest) -> {error, enoent} -> ok; %% Path doesn't exist anyway {error, Err} -> {error, {Src, Dest, Err}} end; - true -> run_ok_monad( - [fun (ok) -> file:list_dir(Src) end, - fun (_FileNames) -> file:make_dir(Dest) end, + true -> ErrHdlr = fun (Err) -> {Src, Dest, Err} end, + run_ok_monad( + [{fun (ok) -> file:list_dir(Src) end, ErrHdlr}, + {fun (_FileNames) -> file:make_dir(Dest) end, ErrHdlr}, fun (FileNames) -> run_ok_monad( [fun (ok) -> -- cgit v1.2.1 From 7341aa65d4930984a820e743ef4c4608975d1b95 Mon Sep 17 00:00:00 2001 From: Marek Majkowski Date: Tue, 29 Mar 2011 17:05:39 +0100 Subject: Slightly better explanation for some epmd errors. --- src/rabbit_prelaunch.erl | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl index 8800e8d6..0b058f76 100644 --- a/src/rabbit_prelaunch.erl +++ b/src/rabbit_prelaunch.erl @@ -16,7 +16,7 @@ -module(rabbit_prelaunch). --export([start/0, stop/0]). +-export([start/0, stop/0, duplicate_node_check/1]). -define(BaseApps, [rabbit]). -define(ERROR_CODE, 1). @@ -258,8 +258,19 @@ duplicate_node_check(NodeStr) -> terminate(?ERROR_CODE); false -> ok end; - {error, EpmdReason} -> terminate("unexpected epmd error: ~p~n", - [EpmdReason]) + {error, EpmdReason} -> + Tip = case EpmdReason of + address -> + io_lib:format("(Unable to connect to epmd on host " ++ + "~p using tcp port 4369.)", + [NodeHost]); + nxdomain -> + io_lib:format("(Can't resolve host ~p.)", + [NodeHost]); + _ -> [] + end, + terminate("unexpected epmd error: ~p ~s~n", + [EpmdReason, Tip]) end. terminate(Fmt, Args) -> -- cgit v1.2.1 From c34036d0c8824b9fbe58633953b382b4ae80349f Mon Sep 17 00:00:00 2001 From: Marek Majkowski Date: Tue, 29 Mar 2011 17:29:06 +0100 Subject: junk the junk in junk --- src/gm_speed_test.erl | 82 ----------------------- src/rabbit_version.erl | 172 ------------------------------------------------- 2 files changed, 254 deletions(-) delete mode 100644 src/gm_speed_test.erl delete mode 100644 src/rabbit_version.erl diff --git a/src/gm_speed_test.erl b/src/gm_speed_test.erl deleted file mode 100644 index defb0f29..00000000 --- a/src/gm_speed_test.erl +++ /dev/null @@ -1,82 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_speed_test). - --export([test/3]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). --export([wile_e_coyote/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - -%% callbacks - -joined(Owner, _Members) -> - Owner ! joined, - ok. - -members_changed(_Owner, _Births, _Deaths) -> - ok. - -handle_msg(Owner, _From, ping) -> - Owner ! ping, - ok. - -terminate(Owner, _Reason) -> - Owner ! terminated, - ok. - -%% other - -wile_e_coyote(Time, WriteUnit) -> - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, self()), - receive joined -> ok end, - timer:sleep(1000), %% wait for all to join - timer:send_after(Time, stop), - Start = now(), - {Sent, Received} = loop(Pid, WriteUnit, 0, 0), - End = now(), - ok = gm:leave(Pid), - receive terminated -> ok end, - Elapsed = timer:now_diff(End, Start) / 1000000, - io:format("Sending rate: ~p msgs/sec~nReceiving rate: ~p msgs/sec~n~n", - [Sent/Elapsed, Received/Elapsed]), - ok. - -loop(Pid, WriteUnit, Sent, Received) -> - case read(Received) of - {stop, Received1} -> {Sent, Received1}; - {ok, Received1} -> ok = write(Pid, WriteUnit), - loop(Pid, WriteUnit, Sent + WriteUnit, Received1) - end. - -read(Count) -> - receive - ping -> read(Count + 1); - stop -> {stop, Count} - after 5 -> - {ok, Count} - end. - -write(_Pid, 0) -> ok; -write(Pid, N) -> ok = gm:broadcast(Pid, ping), - write(Pid, N - 1). - -test(Time, WriteUnit, Nodes) -> - ok = gm:create_tables(), - [spawn(Node, ?MODULE, wile_e_coyote, [Time, WriteUnit]) || Node <- Nodes]. diff --git a/src/rabbit_version.erl b/src/rabbit_version.erl deleted file mode 100644 index 400abc10..00000000 --- a/src/rabbit_version.erl +++ /dev/null @@ -1,172 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_version). - --export([recorded/0, matches/2, desired/0, desired_for_scope/1, - record_desired/0, record_desired_for_scope/1, - upgrades_required/1]). - -%% ------------------------------------------------------------------- --ifdef(use_specs). - --export_type([scope/0, step/0]). - --type(scope() :: atom()). --type(scope_version() :: [atom()]). --type(step() :: {atom(), atom()}). - --type(version() :: [atom()]). - --spec(recorded/0 :: () -> rabbit_types:ok_or_error2(version(), any())). --spec(matches/2 :: ([A], [A]) -> boolean()). --spec(desired/0 :: () -> version()). --spec(desired_for_scope/1 :: (scope()) -> scope_version()). --spec(record_desired/0 :: () -> 'ok'). --spec(record_desired_for_scope/1 :: - (scope()) -> rabbit_types:ok_or_error(any())). --spec(upgrades_required/1 :: - (scope()) -> rabbit_types:ok_or_error2([step()], any())). - --endif. -%% ------------------------------------------------------------------- - --define(VERSION_FILENAME, "schema_version"). --define(SCOPES, [mnesia, local]). - -%% ------------------------------------------------------------------- - -recorded() -> case rabbit_misc:read_term_file(schema_filename()) of - {ok, [V]} -> {ok, V}; - {error, _} = Err -> Err - end. - -record(V) -> ok = rabbit_misc:write_term_file(schema_filename(), [V]). - -recorded_for_scope(Scope) -> - case recorded() of - {error, _} = Err -> - Err; - {ok, Version} -> - {ok, case lists:keysearch(Scope, 1, categorise_by_scope(Version)) of - false -> []; - {value, {Scope, SV1}} -> SV1 - end} - end. - -record_for_scope(Scope, ScopeVersion) -> - case recorded() of - {error, _} = Err -> - Err; - {ok, Version} -> - Version1 = lists:keystore(Scope, 1, categorise_by_scope(Version), - {Scope, ScopeVersion}), - ok = record([Name || {_Scope, Names} <- Version1, Name <- Names]) - end. - -%% ------------------------------------------------------------------- - -matches(VerA, VerB) -> - lists:usort(VerA) =:= lists:usort(VerB). - -%% ------------------------------------------------------------------- - -desired() -> [Name || Scope <- ?SCOPES, Name <- desired_for_scope(Scope)]. - -desired_for_scope(Scope) -> with_upgrade_graph(fun heads/1, Scope). - -record_desired() -> record(desired()). - -record_desired_for_scope(Scope) -> - record_for_scope(Scope, desired_for_scope(Scope)). - -upgrades_required(Scope) -> - case recorded_for_scope(Scope) of - {error, enoent} -> - {error, version_not_available}; - {ok, CurrentHeads} -> - with_upgrade_graph( - fun (G) -> - case unknown_heads(CurrentHeads, G) of - [] -> {ok, upgrades_to_apply(CurrentHeads, G)}; - Unknown -> {error, {future_upgrades_found, Unknown}} - end - end, Scope) - end. - -%% ------------------------------------------------------------------- - -with_upgrade_graph(Fun, Scope) -> - case rabbit_misc:build_acyclic_graph( - fun (Module, Steps) -> vertices(Module, Steps, Scope) end, - fun (Module, Steps) -> edges(Module, Steps, Scope) end, - rabbit_misc:all_module_attributes(rabbit_upgrade)) of - {ok, G} -> try - Fun(G) - after - true = digraph:delete(G) - end; - {error, {vertex, duplicate, StepName}} -> - throw({error, {duplicate_upgrade_step, StepName}}); - {error, {edge, {bad_vertex, StepName}, _From, _To}} -> - throw({error, {dependency_on_unknown_upgrade_step, StepName}}); - {error, {edge, {bad_edge, StepNames}, _From, _To}} -> - throw({error, {cycle_in_upgrade_steps, StepNames}}) - end. - -vertices(Module, Steps, Scope0) -> - [{StepName, {Module, StepName}} || {StepName, Scope1, _Reqs} <- Steps, - Scope0 == Scope1]. - -edges(_Module, Steps, Scope0) -> - [{Require, StepName} || {StepName, Scope1, Requires} <- Steps, - Require <- Requires, - Scope0 == Scope1]. -unknown_heads(Heads, G) -> - [H || H <- Heads, digraph:vertex(G, H) =:= false]. - -upgrades_to_apply(Heads, G) -> - %% Take all the vertices which can reach the known heads. That's - %% everything we've already applied. Subtract that from all - %% vertices: that's what we have to apply. - Unsorted = sets:to_list( - sets:subtract( - sets:from_list(digraph:vertices(G)), - sets:from_list(digraph_utils:reaching(Heads, G)))), - %% Form a subgraph from that list and find a topological ordering - %% so we can invoke them in order. - [element(2, digraph:vertex(G, StepName)) || - StepName <- digraph_utils:topsort(digraph_utils:subgraph(G, Unsorted))]. - -heads(G) -> - lists:sort([V || V <- digraph:vertices(G), digraph:out_degree(G, V) =:= 0]). - -%% ------------------------------------------------------------------- - -categorise_by_scope(Version) when is_list(Version) -> - Categorised = - [{Scope, Name} || {_Module, Attributes} <- - rabbit_misc:all_module_attributes(rabbit_upgrade), - {Name, Scope, _Requires} <- Attributes, - lists:member(Name, Version)], - orddict:to_list( - lists:foldl(fun ({Scope, Name}, CatVersion) -> - rabbit_misc:orddict_cons(Scope, Name, CatVersion) - end, orddict:new(), Categorised)). - -dir() -> rabbit_mnesia:dir(). - -schema_filename() -> filename:join(dir(), ?VERSION_FILENAME). -- cgit v1.2.1 From f1e59ba4b76dd73d933b5602cd6e7a8f1703f449 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 17:39:06 +0100 Subject: Make it a bit more haskelly, and use some of this stuff elsewhere --- src/rabbit_misc.erl | 52 ++++++++++++++++++++++++++++++------------------ src/rabbit_msg_store.erl | 12 +++++------ 2 files changed, 38 insertions(+), 26 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index c1de5aa7..8e43c613 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -40,8 +40,8 @@ -export([upmap/2, map_in_order/2]). -export([table_fold/3]). -export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). --export([read_term_file/1, write_term_file/2]). --export([write_file/3, run_ok_monad/2]). +-export([read_term_file/1, write_term_file/2, write_file/3]). +-export([eval_ok_monad/2, exec_ok_monad/2, run_ok_monad/2]). -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). @@ -163,8 +163,10 @@ (file:filename()) -> {'ok', [any()]} | rabbit_types:error(any())). -spec(write_term_file/2 :: (file:filename(), [any()]) -> ok_or_error()). -spec(write_file/3 :: (file:filename(), boolean(), binary()) -> ok_or_error()). --spec(run_ok_monad/2 :: ([ok_monad_fun()], any()) -> +-spec(eval_ok_monad/2 :: ([ok_monad_fun()], any()) -> rabbit_types:ok_or_error(any())). +-spec(exec_ok_monad/2 :: ([ok_monad_fun()], any()) -> any()). +-spec(run_ok_monad/2 :: ([ok_monad_fun()], any()) -> any()). -spec(append_file/2 :: (file:filename(), string()) -> ok_or_error()). -spec(ensure_parent_dirs_exist/1 :: (string()) -> 'ok'). -spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). @@ -531,7 +533,7 @@ write_file(Path, Append, Binary) when is_binary(Binary) -> true -> [read]; false -> [] end], - run_ok_monad( + eval_ok_monad( [fun (ok) -> file:open(Path, Modes) end, fun (Hdl) -> run_ok_monad( [fun (ok) -> file:position(Hdl, eof) end, @@ -540,17 +542,29 @@ write_file(Path, Append, Binary) when is_binary(Binary) -> fun (_Pos) -> file:close(Hdl) end], ok) end], ok). -run_ok_monad([], _State) -> - ok; +eval_ok_monad(Funs, State) -> + case run_ok_monad(Funs, State) of + {ok, _State1} -> ok; + Error -> Error + end. + +exec_ok_monad(Funs, State) -> + case run_ok_monad(Funs, State) of + {ok, State1} -> State1; + Error -> Error + end. + +run_ok_monad([], State) -> + {ok, State}; run_ok_monad([Fun|Funs], State) -> {F, H} = case Fun of {_F, _H} = Tuple -> Tuple; - _ -> {Fun, fun (Err) -> Err end} + _ -> {Fun, fun (Err) -> {error, Err} end} end, case F(State) of ok -> run_ok_monad(Funs, State); {ok, State1} -> run_ok_monad(Funs, State1); - {error, Error} -> {error, H(Error)} + {error, Error} -> H(Error) end. append_file(File, Suffix) -> @@ -563,11 +577,11 @@ append_file(File, Suffix) -> append_file(_, _, "") -> ok; append_file(File, 0, Suffix) -> - run_ok_monad([fun (ok) -> file:open([File, Suffix], [append]) end, - fun (Hdl) -> file:close(Hdl) end], ok); + eval_ok_monad([fun (ok) -> file:open([File, Suffix], [append]) end, + fun (Hdl) -> file:close(Hdl) end], ok); append_file(File, _, Suffix) -> - run_ok_monad([fun (ok) -> file:read_file(File) end, - fun (Data) -> write_file(File ++ Suffix, true, Data) end], + eval_ok_monad([fun (ok) -> file:read_file(File) end, + fun (Data) -> write_file(File ++ Suffix, true, Data) end], ok). ensure_parent_dirs_exist(Filename) -> @@ -717,7 +731,7 @@ version_compare(A, B) -> dropdot(A) -> lists:dropwhile(fun (X) -> X =:= $. end, A). recursive_delete(Files) -> - run_ok_monad( + eval_ok_monad( [fun (ok) -> recursive_delete1(Path) end || Path <- Files], ok). recursive_delete1(Path) -> @@ -729,11 +743,11 @@ recursive_delete1(Path) -> {error, Err} -> {error, {Path, Err}} end; true -> - ErrHdlr = fun (Err) -> {Path, Err} end, - run_ok_monad( + ErrHdlr = fun (Err) -> {error, {Path, Err}} end, + eval_ok_monad( [{fun (ok) -> file:list_dir(Path) end, ErrHdlr}, fun (FileNames) -> - run_ok_monad( + eval_ok_monad( [fun (ok) -> recursive_delete1(filename:join(Path, FileName)) end || FileName <- FileNames], ok) @@ -748,12 +762,12 @@ recursive_copy(Src, Dest) -> {error, enoent} -> ok; %% Path doesn't exist anyway {error, Err} -> {error, {Src, Dest, Err}} end; - true -> ErrHdlr = fun (Err) -> {Src, Dest, Err} end, - run_ok_monad( + true -> ErrHdlr = fun (Err) -> {error, {Src, Dest, Err}} end, + eval_ok_monad( [{fun (ok) -> file:list_dir(Src) end, ErrHdlr}, {fun (_FileNames) -> file:make_dir(Dest) end, ErrHdlr}, fun (FileNames) -> - run_ok_monad( + eval_ok_monad( [fun (ok) -> recursive_copy( filename:join(Src, FileName), diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index bb26de64..84afda55 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1444,13 +1444,11 @@ store_recovery_terms(Terms, Dir) -> read_recovery_terms(Dir) -> Path = filename:join(Dir, ?CLEAN_FILENAME), - case rabbit_misc:read_term_file(Path) of - {ok, Terms} -> case file:delete(Path) of - ok -> {true, Terms}; - {error, Error} -> {false, Error} - end; - {error, Error} -> {false, Error} - end. + ErrHdlr = fun (Error) -> {false, Error} end, + rabbit_misc:exec_ok_monad( + [{fun (ok) -> rabbit_misc:read_term_file(Path) end, ErrHdlr}, + {fun (_Terms) -> file:delete(Path) end, ErrHdlr}, + fun (Terms) -> {ok, {true, Terms}} end], ok). store_file_summary(Tid, Dir) -> ok = ets:tab2file(Tid, filename:join(Dir, ?FILE_SUMMARY_FILENAME), -- cgit v1.2.1 From 18a9e03b2dabed9c6678001e37bd28dcbe18088f Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 19:10:03 +0100 Subject: Largely checking this in for comedy value --- src/rabbit_misc.erl | 69 ++++++++++++++++++++++++----------------------- src/state_error_monad.erl | 41 ++++++++++++++++++++++++++++ 2 files changed, 76 insertions(+), 34 deletions(-) create mode 100644 src/state_error_monad.erl diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 8e43c613..96d300dd 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -533,14 +533,14 @@ write_file(Path, Append, Binary) when is_binary(Binary) -> true -> [read]; false -> [] end], - eval_ok_monad( - [fun (ok) -> file:open(Path, Modes) end, - fun (Hdl) -> run_ok_monad( - [fun (ok) -> file:position(Hdl, eof) end, - fun (_Pos) -> file:write(Hdl, Binary) end, - fun (_Pos) -> file:sync(Hdl) end, - fun (_Pos) -> file:close(Hdl) end], ok) - end], ok). + state_error_monad:eval( + [fun (ok, nostate) -> file:open(Path, Modes) end, + fun ({ok, Hdl}, nostate) -> {set_state, Hdl} end, + fun (ok, Hdl) -> file:position(Hdl, eof) end, + fun ({ok, _Pos}, _Hdl) -> ok end, + fun (ok, Hdl) -> file:write(Hdl, Binary) end, + fun (ok, Hdl) -> file:sync(Hdl) end, + fun (ok, Hdl) -> file:close(Hdl) end], nostate). eval_ok_monad(Funs, State) -> case run_ok_monad(Funs, State) of @@ -577,12 +577,14 @@ append_file(File, Suffix) -> append_file(_, _, "") -> ok; append_file(File, 0, Suffix) -> - eval_ok_monad([fun (ok) -> file:open([File, Suffix], [append]) end, - fun (Hdl) -> file:close(Hdl) end], ok); + state_error_monad:eval( + [fun (ok, nostate) -> file:open([File, Suffix], [append]) end, + fun ({ok, Hdl}, nostate) -> file:close(Hdl) end], nostate); append_file(File, _, Suffix) -> - eval_ok_monad([fun (ok) -> file:read_file(File) end, - fun (Data) -> write_file(File ++ Suffix, true, Data) end], - ok). + state_error_monad:eval( + [fun (ok, nostate) -> file:read_file(File) end, + fun ({ok, Data}, nostate) -> write_file(File ++ Suffix, true, Data) end], + nostate). ensure_parent_dirs_exist(Filename) -> case filelib:ensure_dir(Filename) of @@ -731,29 +733,28 @@ version_compare(A, B) -> dropdot(A) -> lists:dropwhile(fun (X) -> X =:= $. end, A). recursive_delete(Files) -> - eval_ok_monad( - [fun (ok) -> recursive_delete1(Path) end || Path <- Files], ok). + state_error_monad:eval( + lists:append([recursive_delete1(Path) || Path <- Files]), nostate). recursive_delete1(Path) -> - case filelib:is_dir(Path) of - false -> - case file:delete(Path) of - ok -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Path, Err}} - end; - true -> - ErrHdlr = fun (Err) -> {error, {Path, Err}} end, - eval_ok_monad( - [{fun (ok) -> file:list_dir(Path) end, ErrHdlr}, - fun (FileNames) -> - eval_ok_monad( - [fun (ok) -> - recursive_delete1(filename:join(Path, FileName)) - end || FileName <- FileNames], ok) - end, - {fun (_FileNames) -> file:del_dir(Path) end, ErrHdlr}], ok) - end. + [fun (ok, _State) -> {set_state, Path} end, + fun (ok, _Path) -> filelib:is_dir(Path) end, + fun (false, _Path) -> + case file:delete(Path) of + ok -> ok; + {error, enoent} -> ok; %% Path doesn't exist anyway + {error, _} = Err -> Err + end; + (true, _Path) -> + {inject, [fun (ok, _Path) -> file:list_dir(Path) end, + fun ({ok, FileNames}, _Path) -> + {inject, lists:append( + [recursive_delete1( + filename:join(Path, FileName)) || + FileName <- FileNames])} + end, + fun (ok, _Path) -> file:del_dir(Path) end]} + end]. recursive_copy(Src, Dest) -> case filelib:is_dir(Src) of diff --git a/src/state_error_monad.erl b/src/state_error_monad.erl new file mode 100644 index 00000000..df323847 --- /dev/null +++ b/src/state_error_monad.erl @@ -0,0 +1,41 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2011-2011 VMware, Inc. All rights reserved. +%% + +-module(state_error_monad). + +-export([eval/2, exec/2, run/3]). + +eval(Funs, State) -> + case run(Funs, ok, State) of + {error, _Err} = Error -> Error; + {Result, _State} -> Result + end. + +exec(Funs, State) -> + case run(Funs, ok, State) of + {error, _Err} = Error -> Error; + {_Result, State} -> State + end. + +run([], Result, State) -> + {Result, State}; +run([Fun|Funs], Result, State) -> + case Fun(Result, State) of + {error, Err} -> {error, {State, Err}}; + {set_state, State1} -> run(Funs, ok, State1); + {inject, Funs1} -> run(Funs1 ++ Funs, ok, State); + Result1 -> run(Funs, Result1, State) + end. -- cgit v1.2.1 From fac8541a649699b5a8e1d00ca60aea53721d6dce Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 19:11:54 +0100 Subject: s/inject/join/ - it genuinely is a monadic join --- src/rabbit_misc.erl | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 96d300dd..52d93bd6 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -746,14 +746,14 @@ recursive_delete1(Path) -> {error, _} = Err -> Err end; (true, _Path) -> - {inject, [fun (ok, _Path) -> file:list_dir(Path) end, - fun ({ok, FileNames}, _Path) -> - {inject, lists:append( - [recursive_delete1( - filename:join(Path, FileName)) || - FileName <- FileNames])} - end, - fun (ok, _Path) -> file:del_dir(Path) end]} + {join, [fun (ok, _Path) -> file:list_dir(Path) end, + fun ({ok, FileNames}, _Path) -> + {join, lists:append( + [recursive_delete1( + filename:join(Path, FileName)) || + FileName <- FileNames])} + end, + fun (ok, _Path) -> file:del_dir(Path) end]} end]. recursive_copy(Src, Dest) -> -- cgit v1.2.1 From ae576c9084eab0c905b1751c5a24844ae7424238 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 19:19:33 +0100 Subject: s/inject/join/ - it genuinely is a monadic join (the other bit!) --- src/state_error_monad.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/state_error_monad.erl b/src/state_error_monad.erl index df323847..85c58a34 100644 --- a/src/state_error_monad.erl +++ b/src/state_error_monad.erl @@ -36,6 +36,6 @@ run([Fun|Funs], Result, State) -> case Fun(Result, State) of {error, Err} -> {error, {State, Err}}; {set_state, State1} -> run(Funs, ok, State1); - {inject, Funs1} -> run(Funs1 ++ Funs, ok, State); + {join, Funs1} -> run(Funs1 ++ Funs, ok, State); Result1 -> run(Funs, Result1, State) end. -- cgit v1.2.1 From 7d24ee472950eb754ebc36787c7becf2886e3243 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 19:21:41 +0100 Subject: Get rid of shadowing warnings --- src/rabbit_misc.erl | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 52d93bd6..66911242 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -738,22 +738,22 @@ recursive_delete(Files) -> recursive_delete1(Path) -> [fun (ok, _State) -> {set_state, Path} end, - fun (ok, _Path) -> filelib:is_dir(Path) end, - fun (false, _Path) -> - case file:delete(Path) of + fun (ok, Path1) -> filelib:is_dir(Path1) end, + fun (false, Path1) -> + case file:delete(Path1) of ok -> ok; {error, enoent} -> ok; %% Path doesn't exist anyway {error, _} = Err -> Err end; - (true, _Path) -> - {join, [fun (ok, _Path) -> file:list_dir(Path) end, - fun ({ok, FileNames}, _Path) -> + (true, Path1) -> + {join, [fun (ok, Path2) -> file:list_dir(Path2) end, + fun ({ok, FileNames}, Path2) -> {join, lists:append( [recursive_delete1( - filename:join(Path, FileName)) || + filename:join(Path2, FileName)) || FileName <- FileNames])} end, - fun (ok, _Path) -> file:del_dir(Path) end]} + fun (ok, _OtherPath) -> file:del_dir(Path1) end]} end]. recursive_copy(Src, Dest) -> -- cgit v1.2.1 From 52a2abfd6731e241cdf086aeb5a28309eead3aa0 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 19:40:56 +0100 Subject: recursive_copy is now the same length as its original, but recursive_delete is 10 lines shorter --- src/rabbit_misc.erl | 44 +++++++++++++++++++++++++------------------- 1 file changed, 25 insertions(+), 19 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 66911242..2d2294d3 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -757,25 +757,31 @@ recursive_delete1(Path) -> end]. recursive_copy(Src, Dest) -> - case filelib:is_dir(Src) of - false -> case file:copy(Src, Dest) of - {ok, _Bytes} -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Src, Dest, Err}} - end; - true -> ErrHdlr = fun (Err) -> {error, {Src, Dest, Err}} end, - eval_ok_monad( - [{fun (ok) -> file:list_dir(Src) end, ErrHdlr}, - {fun (_FileNames) -> file:make_dir(Dest) end, ErrHdlr}, - fun (FileNames) -> - eval_ok_monad( - [fun (ok) -> - recursive_copy( - filename:join(Src, FileName), - filename:join(Dest, FileName)) - end || FileName <- FileNames], ok) - end], ok) - end. + state_error_monad:eval(recursive_copy1(Src, Dest), nostate). + +recursive_copy1(Src, Dest) -> + [fun (ok, _State) -> {set_state, {Src, Dest}} end, + fun (ok, {Src1, Dest1}) -> + case filelib:is_dir(Src1) of + false -> + case file:copy(Src1, Dest1) of + {ok, _Bytes} -> ok; + {error, enoent} -> ok; %% Path doesn't exist anyway + {error, _} = Err -> Err + end; + true -> + {join, + [fun (ok, {_Src2, Dest2}) -> file:make_dir(Dest2) end, + fun (ok, {Src2, _Dest2}) -> file:list_dir(Src2) end, + fun ({ok, FileNames}, {Src2, Dest2}) -> + {join, lists:append( + [recursive_copy1( + filename:join(Src2, FileName), + filename:join(Dest2, FileName)) || + FileName <- FileNames])} + end]} + end + end]. dict_cons(Key, Value, Dict) -> dict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). -- cgit v1.2.1 From 0db40a93deba844191e6725e55de75a9552111f8 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 20:03:20 +0100 Subject: whoops --- src/state_error_monad.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/state_error_monad.erl b/src/state_error_monad.erl index 85c58a34..833aeb69 100644 --- a/src/state_error_monad.erl +++ b/src/state_error_monad.erl @@ -27,7 +27,7 @@ eval(Funs, State) -> exec(Funs, State) -> case run(Funs, ok, State) of {error, _Err} = Error -> Error; - {_Result, State} -> State + {_Result, State1} -> State1 end. run([], Result, State) -> -- cgit v1.2.1 From b7c971016fb20ecbe49b7042d7aed2f0cccc1ba5 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 20:05:06 +0100 Subject: Use new monad --- src/rabbit_msg_store.erl | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 84afda55..d3683f1d 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1444,11 +1444,13 @@ store_recovery_terms(Terms, Dir) -> read_recovery_terms(Dir) -> Path = filename:join(Dir, ?CLEAN_FILENAME), - ErrHdlr = fun (Error) -> {false, Error} end, - rabbit_misc:exec_ok_monad( - [{fun (ok) -> rabbit_misc:read_term_file(Path) end, ErrHdlr}, - {fun (_Terms) -> file:delete(Path) end, ErrHdlr}, - fun (Terms) -> {ok, {true, Terms}} end], ok). + case state_error_monad:exec( + [fun (ok, _Path) -> rabbit_misc:read_term_file(Path) end, + fun ({ok, Terms}, nostate) -> {set_state, Terms} end, + fun (ok, _Terms) -> file:delete(Path) end], Path) of + {error, Error} -> {false, Error}; + Terms -> {true, Terms} + end. store_file_summary(Tid, Dir) -> ok = ets:tab2file(Tid, filename:join(Dir, ?FILE_SUMMARY_FILENAME), -- cgit v1.2.1 From f9dcdecdb81c80878a7eeb036da355560765bc4c Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 20:05:33 +0100 Subject: rip out old monad --- src/rabbit_misc.erl | 39 +-------------------------------------- 1 file changed, 1 insertion(+), 38 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 2d2294d3..4cd25487 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -41,7 +41,6 @@ -export([table_fold/3]). -export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). -export([read_term_file/1, write_term_file/2, write_file/3]). --export([eval_ok_monad/2, exec_ok_monad/2, run_ok_monad/2]). -export([append_file/2, ensure_parent_dirs_exist/1]). -export([format_stderr/2]). -export([start_applications/1, stop_applications/1]). @@ -63,8 +62,7 @@ -ifdef(use_specs). --export_type([resource_name/0, thunk/1, const/1, - ok_monad_fun_tuple/0, ok_monad_fun/0, ok_monad_error_fun/0]). +-export_type([resource_name/0, thunk/1, const/1]). -type(ok_or_error() :: rabbit_types:ok_or_error(any())). -type(thunk(T) :: fun(() -> T)). @@ -79,12 +77,6 @@ -type(graph_edge_fun() :: fun ((atom(), [term()]) -> [{digraph:vertex(), digraph:vertex()}])). --type(ok_monad_fun_tuple() :: - ok_monad_fun() | {ok_monad_fun(), ok_monad_error_fun()}). --type(ok_monad_fun() :: - fun((any()) -> 'ok' | rabbit_types:ok_or_error2(any(), any()))). --type(ok_monad_error_fun() :: fun((any()) -> any())). - -spec(method_record_type/1 :: (rabbit_framing:amqp_method_record()) -> rabbit_framing:amqp_method_name()). -spec(polite_pause/0 :: () -> 'done'). @@ -163,10 +155,6 @@ (file:filename()) -> {'ok', [any()]} | rabbit_types:error(any())). -spec(write_term_file/2 :: (file:filename(), [any()]) -> ok_or_error()). -spec(write_file/3 :: (file:filename(), boolean(), binary()) -> ok_or_error()). --spec(eval_ok_monad/2 :: ([ok_monad_fun()], any()) -> - rabbit_types:ok_or_error(any())). --spec(exec_ok_monad/2 :: ([ok_monad_fun()], any()) -> any()). --spec(run_ok_monad/2 :: ([ok_monad_fun()], any()) -> any()). -spec(append_file/2 :: (file:filename(), string()) -> ok_or_error()). -spec(ensure_parent_dirs_exist/1 :: (string()) -> 'ok'). -spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). @@ -542,31 +530,6 @@ write_file(Path, Append, Binary) when is_binary(Binary) -> fun (ok, Hdl) -> file:sync(Hdl) end, fun (ok, Hdl) -> file:close(Hdl) end], nostate). -eval_ok_monad(Funs, State) -> - case run_ok_monad(Funs, State) of - {ok, _State1} -> ok; - Error -> Error - end. - -exec_ok_monad(Funs, State) -> - case run_ok_monad(Funs, State) of - {ok, State1} -> State1; - Error -> Error - end. - -run_ok_monad([], State) -> - {ok, State}; -run_ok_monad([Fun|Funs], State) -> - {F, H} = case Fun of - {_F, _H} = Tuple -> Tuple; - _ -> {Fun, fun (Err) -> {error, Err} end} - end, - case F(State) of - ok -> run_ok_monad(Funs, State); - {ok, State1} -> run_ok_monad(Funs, State1); - {error, Error} -> H(Error) - end. - append_file(File, Suffix) -> case file:read_file_info(File) of {ok, FInfo} -> append_file(File, FInfo#file_info.size, Suffix); -- cgit v1.2.1 From e3677d021b482caf95b748a875bb9ebca23ab2ee Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 20:09:08 +0100 Subject: Fix bug and minor compression --- src/rabbit_msg_store.erl | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index d3683f1d..df524b23 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1443,13 +1443,13 @@ store_recovery_terms(Terms, Dir) -> rabbit_misc:write_term_file(filename:join(Dir, ?CLEAN_FILENAME), Terms). read_recovery_terms(Dir) -> - Path = filename:join(Dir, ?CLEAN_FILENAME), case state_error_monad:exec( - [fun (ok, _Path) -> rabbit_misc:read_term_file(Path) end, - fun ({ok, Terms}, nostate) -> {set_state, Terms} end, - fun (ok, _Terms) -> file:delete(Path) end], Path) of + [fun (ok, Path) -> rabbit_misc:read_term_file(Path) end, + fun ({ok, Terms}, Path) -> {set_state, {Path, Terms}} end, + fun (ok, {Path, _Terms}) -> file:delete(Path) end], + filename:join(Dir, ?CLEAN_FILENAME)) of {error, Error} -> {false, Error}; - Terms -> {true, Terms} + {_Path, Terms} -> {true, Terms} end. store_file_summary(Tid, Dir) -> -- cgit v1.2.1 From 02a79c14b55c8c8b6af3573192bbc0283726417f Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 20:31:37 +0100 Subject: Annoyingly, this one's now become one line longer too --- src/rabbit_exchange.erl | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 9d9b07af..23cfca43 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -142,17 +142,18 @@ declare(XName, Type, Durable, AutoDelete, Internal, Args) -> %% Used with binaries sent over the wire; the type may not exist. check_type(TypeBin) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> + case state_error_monad:run( + [fun (ok, nostate) -> rabbit_registry:binary_to_type(TypeBin) end, + fun (T, nostate) -> {set_state, T} end, + fun (ok, T) -> rabbit_registry:lookup_module(exchange, T) end], + ok, nostate) of + {{ok, _Module}, T} -> T; + {error, {nostate, not_found}} -> rabbit_misc:protocol_error( command_invalid, "unknown exchange type '~s'", [TypeBin]); - T -> - case rabbit_registry:lookup_module(exchange, T) of - {error, not_found} -> rabbit_misc:protocol_error( - command_invalid, - "invalid exchange type '~s'", [T]); - {ok, _Module} -> T - end + {error, {T, not_found}} -> + rabbit_misc:protocol_error( + command_invalid, "invalid exchange type '~s'", [T]) end. assert_equivalence(X = #exchange{ durable = Durable, -- cgit v1.2.1 From c01a6de1d3f98745bed00e430d387f722c50cd7c Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 29 Mar 2011 20:43:54 +0100 Subject: Woot! it got a bit shorter --- src/rabbit_networking.erl | 52 +++++++++++++++++++++++------------------------ 1 file changed, 25 insertions(+), 27 deletions(-) diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index 53be0190..4086f637 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -361,34 +361,32 @@ port_to_listeners(Port) -> ipv6_status(TestPort) -> IPv4 = [inet, {ip, {0,0,0,0}}], IPv6 = [inet6, {ip, {0,0,0,0,0,0,0,0}}], - case gen_tcp:listen(TestPort, IPv6) of - {ok, LSock6} -> - case gen_tcp:listen(TestPort, IPv4) of - {ok, LSock4} -> - %% Dual stack - gen_tcp:close(LSock6), - gen_tcp:close(LSock4), - dual_stack; - %% Checking the error here would only let us - %% distinguish single stack IPv6 / IPv4 vs IPv6 only, - %% which we figure out below anyway. - {error, _} -> - gen_tcp:close(LSock6), - case gen_tcp:listen(TestPort, IPv4) of - %% Single stack - {ok, LSock4} -> gen_tcp:close(LSock4), - single_stack; - %% IPv6-only machine. Welcome to the future. - {error, eafnosupport} -> ipv6_only; - %% Dual stack machine with something already - %% on IPv4. - {error, _} -> ipv6_status(TestPort + 1) - end - end; - {error, eafnosupport} -> + case state_error_monad:run( + [fun (ok, nostate) -> gen_tcp:listen(TestPort, IPv6) end, + fun ({ok, LSock6}, nostate) -> {set_state, LSock6} end, + fun (ok, _LSock6) -> gen_tcp:listen(TestPort, IPv4) end, + fun ({ok, LSock4}, LSock6) -> gen_tcp:close(LSock6), %% Dual stack + gen_tcp:close(LSock4), + dual_stack + end], ok, nostate) of + {error, {nostate, eafnosupport}} -> %% IPv4-only machine. Welcome to the 90s. ipv4_only; - {error, _} -> + {error, {nostate, _}} -> %% Port in use - ipv6_status(TestPort + 1) + ipv6_status(TestPort + 1); + {error, {LSock6, _}} -> + %% Checking the error here would only let us distinguish + %% single stack IPv6 / IPv4 vs IPv6 only, which we figure + %% out below anyway. + gen_tcp:close(LSock6), + case gen_tcp:listen(TestPort, IPv4) of + %% Single stack + {ok, LSock4} -> gen_tcp:close(LSock4), + single_stack; + %% IPv6-only machine. Welcome to the future. + {error, eafnosupport} -> ipv6_only; + %% Dual stack machine with something already on IPv4. + {error, _} -> ipv6_status(TestPort + 1) + end end. -- cgit v1.2.1 From d5790a955ab021f70f4e6db15c07c2ee2f72e1d1 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 31 Mar 2011 15:45:07 +0100 Subject: Yes, this is hacky as hell, but I just need to hack the paths before experimenting with the real code --- Makefile | 7 +++++-- scripts/rabbitmq-server | 3 +++ 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index cdb86aad..51178d76 100644 --- a/Makefile +++ b/Makefile @@ -45,8 +45,11 @@ ifndef USE_SPECS USE_SPECS:=$(shell erl -noshell -eval 'io:format([list_to_integer(X) || X <- string:tokens(erlang:system_info(version), ".")] >= [5,8]), halt().') endif +SIBLING_ERLANDO_DIR:=../erlando/ +ERLANDO_EBIN_DIR:=$(SIBLING_ERLANDO_DIR)ebin/ + #other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(if $(filter true,$(USE_SPECS)),-Duse_specs) +ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(if $(filter true,$(USE_SPECS)),-Duse_specs) -pa $(ERLANDO_EBIN_DIR) VERSION=0.0.0 TARBALL_NAME=rabbitmq-server-$(VERSION) @@ -59,7 +62,7 @@ AMQP_SPEC_JSON_FILES_0_8=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.8.json ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e -ERL_EBIN=erl -noinput -pa $(EBIN_DIR) +ERL_EBIN=erl -noinput -pa $(EBIN_DIR) -pa $(ERLANDO_EBIN_DIR) define usage_xml_to_erl $(subst __,_,$(patsubst $(DOCS_DIR)/rabbitmq%.1.xml, $(SOURCE_DIR)/rabbit_%_usage.erl, $(subst -,_,$(1)))) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 2f80eb96..1a89a90d 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -68,9 +68,11 @@ RABBITMQ_START_RABBIT= [ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" +RABBITMQ_ERLANDO_EBIN_ROOT="${RABBITMQ_HOME}/../erlando/ebin" if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then if erl \ -pa "$RABBITMQ_EBIN_ROOT" \ + -pa "$RABBITMQ_ERLANDO_EBIN_ROOT" \ -noinput \ -hidden \ -s rabbit_prelaunch \ @@ -99,6 +101,7 @@ set -f exec erl \ ${RABBITMQ_EBIN_PATH} \ + -pa "$RABBITMQ_ERLANDO_EBIN_ROOT" \ ${RABBITMQ_START_RABBIT} \ -sname ${RABBITMQ_NODENAME} \ -boot ${RABBITMQ_BOOT_FILE} \ -- cgit v1.2.1 From b005fe0010ffdb57238c89e590057f035230c9d0 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 31 Mar 2011 16:04:02 +0100 Subject: Yup, looks nice to me --- src/rabbit_amqqueue.erl | 30 +++++++++++++----------------- 1 file changed, 13 insertions(+), 17 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index c7391965..f667f31e 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -35,6 +35,9 @@ set_maximum_since_use/2, maybe_expire/1, drop_expired/1, emit_stats/1]). +%% NB: for reasons I don't understand, this must occur before the qlc include +-compile({parse_transform, cut}). + -include("rabbit.hrl"). -include_lib("stdlib/include/qlc.hrl"). @@ -333,9 +336,9 @@ info(#amqqueue{ pid = QPid }, Items) -> {error, Error} -> throw(Error) end. -info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). +info_all(VHostPath) -> map(VHostPath, info(_)). -info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). +info_all(VHostPath, Items) -> map(VHostPath, info(_, Items)). consumers(#amqqueue{ pid = QPid }) -> delegate_call(QPid, consumers). @@ -381,23 +384,19 @@ reject(QPid, MsgIds, Requeue, ChPid) -> commit_all(QPids, Txn, ChPid) -> safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {commit, Txn, ChPid}, infinity) end, - QPids). + gen_server2:call(_, {commit, Txn, ChPid}, infinity), QPids). rollback_all(QPids, Txn, ChPid) -> delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {rollback, Txn, ChPid}) end). + QPids, gen_server2:cast(_, {rollback, Txn, ChPid})). notify_down_all(QPids, ChPid) -> safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, infinity) end, - QPids). + gen_server2:call(_, {notify_down, ChPid}, infinity), QPids). limit_all(QPids, ChPid, LimiterPid) -> delegate:invoke_no_result( - QPids, fun (QPid) -> - gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) - end). + QPids, gen_server2:cast(_, {limit, ChPid, LimiterPid})). basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> delegate_call(QPid, {basic_get, ChPid, NoAck}). @@ -417,8 +416,7 @@ unblock(QPid, ChPid) -> delegate_cast(QPid, {unblock, ChPid}). flush_all(QPids, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). + delegate:invoke_no_result(QPids, gen_server2:cast(_, {flush, ChPid})). internal_delete1(QueueName) -> ok = mnesia:delete({rabbit_queue, QueueName}), @@ -433,9 +431,7 @@ internal_delete(QueueName) -> case mnesia:wread({rabbit_queue, QueueName}) of [] -> rabbit_misc:const({error, not_found}); [_] -> Deletions = internal_delete1(QueueName), - fun (Tx) -> ok = rabbit_binding:process_deletions( - Deletions, Tx) - end + rabbit_binding:process_deletions(Deletions, _) end end). @@ -500,7 +496,7 @@ safe_delegate_call_ok(F, Pids) -> end. delegate_call(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> gen_server2:call(P, Msg, infinity) end). + delegate:invoke(Pid, gen_server2:call(_, Msg, infinity)). delegate_cast(Pid, Msg) -> - delegate:invoke_no_result(Pid, fun (P) -> gen_server2:cast(P, Msg) end). + delegate:invoke_no_result(Pid, gen_server2:cast(_, Msg)). -- cgit v1.2.1 From bd49896eb84118301b82a5eb548a0d0f2359b714 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 31 Mar 2011 16:24:51 +0100 Subject: Rework VQ with cut. Similarly save lots of noise, and tests pass --- src/rabbit_variable_queue.erl | 36 ++++++++++++++---------------------- 1 file changed, 14 insertions(+), 22 deletions(-) diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index ff7252fd..32a1c63a 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -297,6 +297,9 @@ -define(PERSISTENT_MSG_STORE, msg_store_persistent). -define(TRANSIENT_MSG_STORE, msg_store_transient). +%% NB: for reasons I don't understand, this must occur before the qlc include +-compile({parse_transform, cut}). + -include("rabbit.hrl"). %%---------------------------------------------------------------------------- @@ -410,10 +413,8 @@ stop_msg_store() -> init(QueueName, IsDurable, Recover, AsyncCallback, SyncCallback) -> init(QueueName, IsDurable, Recover, AsyncCallback, SyncCallback, - fun (MsgIds, ActionTaken) -> - msgs_written_to_disk(AsyncCallback, MsgIds, ActionTaken) - end, - fun (MsgIds) -> msg_indices_written_to_disk(AsyncCallback, MsgIds) end). + msgs_written_to_disk(AsyncCallback, _, _), + msg_indices_written_to_disk(AsyncCallback, _)). init(QueueName, IsDurable, false, AsyncCallback, SyncCallback, MsgOnDiskFun, MsgIdxOnDiskFun) -> @@ -444,9 +445,7 @@ init(QueueName, true, true, AsyncCallback, SyncCallback, rabbit_queue_index:recover( QueueName, Terms1, rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), - fun (MsgId) -> - rabbit_msg_store:contains(MsgId, PersistentClient) - end, + rabbit_msg_store:contains(_, PersistentClient), MsgIdxOnDiskFun), init(true, IndexState, DeltaCount, Terms1, AsyncCallback, SyncCallback, PersistentClient, TransientClient). @@ -959,28 +958,23 @@ msg_store_client_init(MsgStore, Ref, MsgOnDiskFun, Callback) -> msg_store_write(MSCState, IsPersistent, MsgId, Msg) -> with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:write(MsgId, Msg, MSCState1) end). + MSCState, IsPersistent, rabbit_msg_store:write(MsgId, Msg, _)). msg_store_read(MSCState, IsPersistent, MsgId) -> with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:read(MsgId, MSCState1) end). + MSCState, IsPersistent, rabbit_msg_store:read(MsgId, _)). msg_store_remove(MSCState, IsPersistent, MsgIds) -> with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:remove(MsgIds, MCSState1) end). + MSCState, IsPersistent, rabbit_msg_store:remove(MsgIds, _)). msg_store_sync(MSCState, IsPersistent, MsgIds, Fun) -> with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:sync(MsgIds, Fun, MSCState1) end). + MSCState, IsPersistent, rabbit_msg_store:sync(MsgIds, Fun, _)). msg_store_close_fds(MSCState, IsPersistent) -> with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:close_all_indicated(MSCState1) end). + MSCState, IsPersistent, rabbit_msg_store:close_all_indicated(_)). msg_store_close_fds_fun(IsPersistent) -> fun (State = #vqstate { msg_store_clients = MSCState }) -> @@ -1129,10 +1123,8 @@ blank_rate(Timestamp, IngressLength) -> msg_store_callback(PersistentMsgIds, Pubs, AckTags, Fun, MsgPropsFun, AsyncCallback, SyncCallback) -> - case SyncCallback(fun (StateN) -> - tx_commit_post_msg_store(true, Pubs, AckTags, - Fun, MsgPropsFun, StateN) - end) of + case SyncCallback(tx_commit_post_msg_store(true, Pubs, AckTags, + Fun, MsgPropsFun, _)) of ok -> ok; error -> remove_persistent_messages(PersistentMsgIds, AsyncCallback) end. @@ -1451,7 +1443,7 @@ needs_index_sync(#vqstate { msg_indices_on_disk = MIOD, not (gb_sets:is_empty(UC) orelse gb_sets:is_subset(UC, MIOD)). blind_confirm(Callback, MsgIdSet) -> - Callback(fun (State) -> record_confirms(MsgIdSet, State) end). + Callback(record_confirms(MsgIdSet, _)). msgs_written_to_disk(Callback, MsgIdSet, removed) -> blind_confirm(Callback, MsgIdSet); -- cgit v1.2.1 From 6e32440979519ba2256f43c5174ca9f22fa3bbca Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 31 Mar 2011 16:29:34 +0100 Subject: Rework amqqueue_process with cut. --- src/rabbit_amqqueue_process.erl | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 3f5758ce..b9cc62fa 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -86,6 +86,8 @@ -define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). +-compile({parse_transform, cut}). + %%---------------------------------------------------------------------------- start_link(Q) -> gen_server2:start_link(?MODULE, Q, []). @@ -116,9 +118,9 @@ init(Q) -> {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. terminate(shutdown, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); + terminate_shutdown(BQ:terminate(_), State); terminate({shutdown, _}, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); + terminate_shutdown(BQ:terminate(_), State); terminate(_Reason, State = #q{backing_queue = BQ}) -> %% FIXME: How do we cancel active subscriptions? terminate_shutdown(fun (BQS) -> @@ -162,9 +164,7 @@ declare(Recover, From, bq_init(BQ, QName, IsDurable, Recover) -> Self = self(), BQ:init(QName, IsDurable, Recover, - fun (Fun) -> - rabbit_amqqueue:run_backing_queue_async(Self, Fun) - end, + rabbit_amqqueue:run_backing_queue_async(Self, _), fun (Fun) -> rabbit_misc:with_exit_handler( fun () -> error end, @@ -428,9 +428,7 @@ confirm_messages(MsgIds, State = #q{msg_id_to_channel = MTC}) -> {CMs, MTC0} end end, {gb_trees:empty(), MTC}, MsgIds), - gb_trees:map(fun(ChPid, MsgSeqNos) -> - rabbit_channel:confirm(ChPid, MsgSeqNos) - end, CMs), + gb_trees:map(rabbit_channel:confirm(_, _), CMs), State#q{msg_id_to_channel = MTC1}. gb_trees_cons(Key, Value, Tree) -> @@ -522,9 +520,7 @@ deliver_or_enqueue(Delivery = #delivery{message = Message}, State) -> end. requeue_and_run(AckTags, State = #q{backing_queue = BQ, ttl=TTL}) -> - run_backing_queue( - fun (BQS) -> BQ:requeue(AckTags, reset_msg_expiry_fun(TTL), BQS) end, - State). + run_backing_queue(BQ:requeue(AckTags, reset_msg_expiry_fun(TTL), _), State). fetch(AckRequired, State = #q{backing_queue_state = BQS, backing_queue = BQ}) -> @@ -627,7 +623,7 @@ maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). qname(#q{q = #amqqueue{name = QName}}) -> QName. backing_queue_idle_timeout(State = #q{backing_queue = BQ}) -> - run_backing_queue(fun (BQS) -> BQ:idle_timeout(BQS) end, State). + run_backing_queue(BQ:idle_timeout(_), State). run_backing_queue(Fun, State = #q{backing_queue_state = BQS}) -> run_message_queue(State#q{backing_queue_state = Fun(BQS)}). -- cgit v1.2.1 From f423c2014c05552df1b398b95b2d710d9192abaf Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 31 Mar 2011 16:33:43 +0100 Subject: VQ doesn't import qlc... --- src/rabbit_variable_queue.erl | 1 - 1 file changed, 1 deletion(-) diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 32a1c63a..fdf1766c 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -297,7 +297,6 @@ -define(PERSISTENT_MSG_STORE, msg_store_persistent). -define(TRANSIENT_MSG_STORE, msg_store_transient). -%% NB: for reasons I don't understand, this must occur before the qlc include -compile({parse_transform, cut}). -include("rabbit.hrl"). -- cgit v1.2.1 From 22e5acd0d223f595915024479dc120d458dcd9e0 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 31 Mar 2011 17:30:39 +0100 Subject: Cut and State monad together make for happier code --- src/rabbit_tests.erl | 59 +++++++++++++++++++++++++++++++++------------------- 1 file changed, 38 insertions(+), 21 deletions(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 294fae97..d4397b7a 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -20,6 +20,9 @@ -export([all_tests/0, test_parsing/0]). +-compile({parse_transform, cut}). +-compile({parse_transform, erlando}). + -include("rabbit.hrl"). -include("rabbit_framing.hrl"). -include_lib("kernel/include/file.hrl"). @@ -2090,13 +2093,13 @@ variable_queue_publish(IsPersistent, Count, VQ) -> end, VQ, lists:seq(1, Count)). variable_queue_fetch(Count, IsPersistent, IsDelivered, Len, VQ) -> - lists:foldl(fun (N, {VQN, AckTagsAcc}) -> + lists:foldl(fun (N, {AckTagsAcc, VQN}) -> Rem = Len - N, {{#basic_message { is_persistent = IsPersistent }, IsDelivered, AckTagN, Rem}, VQM} = rabbit_variable_queue:fetch(true, VQN), - {VQM, [AckTagN | AckTagsAcc]} - end, {VQ, []}, lists:seq(1, Count)). + {[AckTagN | AckTagsAcc], VQM} + end, {[], VQ}, lists:seq(1, Count)). assert_prop(List, Prop, Value) -> Value = proplists:get_value(Prop, List). @@ -2138,7 +2141,7 @@ test_variable_queue_ack_limiting(VQ0) -> {_Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), %% fetch half the messages - {VQ4, _AckTags} = variable_queue_fetch(Len div 2, false, false, Len, VQ3), + {_AckTags, VQ4} = variable_queue_fetch(Len div 2, false, false, Len, VQ3), VQ5 = check_variable_queue_status(VQ4, [{len , Len div 2}, {ram_ack_count, Len div 2}, @@ -2207,7 +2210,7 @@ test_variable_queue_dynamic_duration_change(VQ0) -> end, VQ3, [Duration / 4, 0, Duration / 4, infinity]), %% drain - {VQ8, AckTags} = variable_queue_fetch(Len, false, false, Len, VQ7), + {AckTags, VQ8} = variable_queue_fetch(Len, false, false, Len, VQ7), VQ9 = rabbit_variable_queue:ack(AckTags, VQ8), {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), @@ -2241,7 +2244,7 @@ test_variable_queue_partial_segments_delta_thing(VQ0) -> {delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, {q3, SegmentSize}, {len, SegmentSize + HalfSegment + 1}]), - {VQ6, AckTags} = variable_queue_fetch(SegmentSize, true, false, + {AckTags, VQ6} = variable_queue_fetch(SegmentSize, true, false, SegmentSize + HalfSegment + 1, VQ5), VQ7 = check_variable_queue_status( VQ6, @@ -2250,7 +2253,7 @@ test_variable_queue_partial_segments_delta_thing(VQ0) -> {delta, {delta, undefined, 0, undefined}}, {q3, HalfSegment}, {len, HalfSegment + 1}]), - {VQ8, AckTags1} = variable_queue_fetch(HalfSegment + 1, true, false, + {AckTags1, VQ8} = variable_queue_fetch(HalfSegment + 1, true, false, HalfSegment + 1, VQ7), VQ9 = rabbit_variable_queue:ack(AckTags ++ AckTags1, VQ8), %% should be empty now @@ -2276,9 +2279,9 @@ test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> VQ1 = variable_queue_publish(true, Count, VQ0), VQ2 = variable_queue_publish(false, Count, VQ1), VQ3 = rabbit_variable_queue:set_ram_duration_target(0, VQ2), - {VQ4, _AckTags} = variable_queue_fetch(Count, true, false, + {_AckTags, VQ4} = variable_queue_fetch(Count, true, false, Count + Count, VQ3), - {VQ5, _AckTags1} = variable_queue_fetch(Count, false, false, + {_AckTags1, VQ5} = variable_queue_fetch(Count, false, false, Count, VQ4), _VQ6 = rabbit_variable_queue:terminate(VQ5), VQ7 = variable_queue_init(test_queue(), true, true), @@ -2286,20 +2289,34 @@ test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> rabbit_variable_queue:fetch(true, VQ7), VQ9 = variable_queue_publish(false, 1, VQ8), VQ10 = rabbit_variable_queue:set_ram_duration_target(0, VQ9), - {VQ11, _AckTags2} = variable_queue_fetch(Count1, true, true, Count, VQ10), - {VQ12, _AckTags3} = variable_queue_fetch(1, false, false, 1, VQ11), + {_AckTags2, VQ11} = variable_queue_fetch(Count1, true, true, Count, VQ10), + {_AckTags3, VQ12} = variable_queue_fetch(1, false, false, 1, VQ11), VQ12. -test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ0) -> - VQ1 = rabbit_variable_queue:set_ram_duration_target(0, VQ0), - VQ2 = variable_queue_publish(false, 4, VQ1), - {VQ3, AckTags} = variable_queue_fetch(2, false, false, 4, VQ2), - VQ4 = rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, VQ3), - VQ5 = rabbit_variable_queue:idle_timeout(VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = variable_queue_init(test_queue(), true, true), - {empty, VQ8} = rabbit_variable_queue:fetch(false, VQ7), - VQ8. +test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ) -> + StateT = state_t:new(identity), + StateT:exec_state_t( + do([StateT || + StateT:modify(rabbit_variable_queue:set_ram_duration_target(0, _)), + StateT:modify(variable_queue_publish(false, 4, _)), + AckTags <- modify_and_return( + StateT, variable_queue_fetch(2, false, false, 4, _)), + StateT:modify( + rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, _)), + StateT:modify(rabbit_variable_queue:idle_timeout(_)), + StateT:modify(rabbit_variable_queue:terminate(_)), + do([StateT || + S <- return(variable_queue_init(test_queue(), true, true)), + StateT:put(S)]), + empty <- modify_and_return( + StateT, rabbit_variable_queue:fetch(false, _)), + return(passed)]), VQ). + +modify_and_return(StateT, Fun) -> + do([StateT || S <- StateT:get(), + {A, S1} <- return(Fun(S)), + StateT:put(S1), + return(A)]). test_queue_recover() -> Count = 2 * rabbit_queue_index:next_segment_boundary(0), -- cgit v1.2.1 From 81eb333d7e0d51bebf53e56aae2f45760e64ace2 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 31 Mar 2011 17:43:23 +0100 Subject: Remove unnecessary binding --- src/rabbit_tests.erl | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index d4397b7a..0ac84faa 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -2306,8 +2306,7 @@ test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ) -> StateT:modify(rabbit_variable_queue:idle_timeout(_)), StateT:modify(rabbit_variable_queue:terminate(_)), do([StateT || - S <- return(variable_queue_init(test_queue(), true, true)), - StateT:put(S)]), + StateT:put(variable_queue_init(test_queue(), true, true))]), empty <- modify_and_return( StateT, rabbit_variable_queue:fetch(false, _)), return(passed)]), VQ). -- cgit v1.2.1 From b73ea9bc17a05de06bc984d3a8f2fdb12b570995 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 31 Mar 2011 17:44:24 +0100 Subject: Also not needed... --- src/rabbit_tests.erl | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 0ac84faa..948075be 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -2305,8 +2305,7 @@ test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ) -> rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, _)), StateT:modify(rabbit_variable_queue:idle_timeout(_)), StateT:modify(rabbit_variable_queue:terminate(_)), - do([StateT || - StateT:put(variable_queue_init(test_queue(), true, true))]), + StateT:put(variable_queue_init(test_queue(), true, true)), empty <- modify_and_return( StateT, rabbit_variable_queue:fetch(false, _)), return(passed)]), VQ). -- cgit v1.2.1 From 9430c966a658d1442bceadfffe647b2d79da7013 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 31 Mar 2011 17:50:35 +0100 Subject: And just for the hell of it... --- src/rabbit_tests.erl | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 948075be..db315068 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -2295,16 +2295,16 @@ test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ) -> StateT = state_t:new(identity), + SM = StateT:modify(_), StateT:exec_state_t( do([StateT || - StateT:modify(rabbit_variable_queue:set_ram_duration_target(0, _)), - StateT:modify(variable_queue_publish(false, 4, _)), + SM(rabbit_variable_queue:set_ram_duration_target(0, _)), + SM(variable_queue_publish(false, 4, _)), AckTags <- modify_and_return( StateT, variable_queue_fetch(2, false, false, 4, _)), - StateT:modify( - rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, _)), - StateT:modify(rabbit_variable_queue:idle_timeout(_)), - StateT:modify(rabbit_variable_queue:terminate(_)), + SM(rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, _)), + SM(rabbit_variable_queue:idle_timeout(_)), + SM(rabbit_variable_queue:terminate(_)), StateT:put(variable_queue_init(test_queue(), true, true)), empty <- modify_and_return( StateT, rabbit_variable_queue:fetch(false, _)), -- cgit v1.2.1 From 5903bd1413440ea38376fdd22881a3c881921ac6 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 1 Apr 2011 15:04:55 +0100 Subject: Passwordless login in the direct client. --- src/rabbit_access_control.erl | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl index b0b57af4..6313265b 100644 --- a/src/rabbit_access_control.erl +++ b/src/rabbit_access_control.erl @@ -51,7 +51,11 @@ user_pass_login(User, Pass) -> ?LOGDEBUG("Login with user ~p pass ~p~n", [User, Pass]), - case check_user_pass_login(User, Pass) of + AuthProps = case Pass of + trust -> []; + P when is_binary(P) -> [{password, P}] + end, + case check_user_login(User, AuthProps) of {refused, Msg, Args} -> rabbit_misc:protocol_error( access_refused, "login refused: ~s", [io_lib:format(Msg, Args)]); -- cgit v1.2.1 From 7fd12ad995b7e126d4658ce1ba4f22018b32324d Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 1 Apr 2011 16:36:34 +0100 Subject: Borrow the generate_deps from erlando, which can cope with parse_transformers --- generate_deps | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/generate_deps b/generate_deps index ddfca816..9f8485b5 100644 --- a/generate_deps +++ b/generate_deps @@ -39,15 +39,12 @@ main([TargetFile, EbinDir]) -> detect_deps(IncludeDirs, EbinDir, Modules, Headers, Path) -> {ok, Forms} = epp:parse_file(Path, IncludeDirs, [{use_specs, true}]), lists:foldl( - fun ({attribute, _LineNumber, Attribute, Behaviour}, Deps) + fun ({attribute, _Line, Attribute, Behaviour}, Deps) when Attribute =:= behaviour orelse Attribute =:= behavior -> - case sets:is_element(Behaviour, Modules) of - true -> sets:add_element( - [EbinDir, "/", atom_to_list(Behaviour), ".beam"], - Deps); - false -> Deps - end; - ({attribute, _LineNumber, file, {FileName, _LineNumber1}}, Deps) -> + maybe_add_to_deps(EbinDir, Modules, Behaviour, Deps); + ({attribute, _Line, compile, {parse_transform, Transform}}, Deps) -> + maybe_add_to_deps(EbinDir, Modules, Transform, Deps); + ({attribute, _Line, file, {FileName, _LineNumber1}}, Deps) -> case sets:is_element(FileName, Headers) of true -> sets:add_element(FileName, Deps); false -> Deps @@ -55,3 +52,10 @@ detect_deps(IncludeDirs, EbinDir, Modules, Headers, Path) -> (_Form, Deps) -> Deps end, sets:new(), Forms). + +maybe_add_to_deps(EbinDir, Modules, Module, Deps) -> + case sets:is_element(Module, Modules) of + true -> sets:add_element( + [EbinDir, "/", atom_to_list(Module), ".beam"], Deps); + false -> Deps + end. -- cgit v1.2.1 From 5be1e2c9ac60725e4fc8b9e5acdb7f7e747b04f0 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 1 Apr 2011 16:44:27 +0100 Subject: Change build so that it copies over the erlando sources as necessary. rabbitmq-server script reverts to normal. This represents the simplest path to being able to easily continue to package and release rabbit --- .hgignore | 7 +++++++ Makefile | 28 +++++++++++++++++----------- scripts/rabbitmq-server | 3 --- 3 files changed, 24 insertions(+), 14 deletions(-) diff --git a/.hgignore b/.hgignore index 912b4a56..703d078f 100644 --- a/.hgignore +++ b/.hgignore @@ -5,6 +5,13 @@ syntax: glob *.patch erl_crash.dump deps.mk +src/cut.erl +src/erlando.erl +src/error.erl +src/identity.erl +src/maybe.erl +src/monad.erl +src/state_t.erl syntax: regexp ^cover/ diff --git a/Makefile b/Makefile index 51178d76..0dcffde6 100644 --- a/Makefile +++ b/Makefile @@ -6,13 +6,19 @@ RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia RABBITMQ_PLUGINS_EXPAND_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-plugins-scratch RABBITMQ_LOG_BASE ?= $(TMPDIR) -DEPS_FILE=deps.mk -SOURCE_DIR=src -EBIN_DIR=ebin -INCLUDE_DIR=include -DOCS_DIR=docs +DEPS_FILE:=deps.mk +SOURCE_DIR:=src +EBIN_DIR:=ebin +INCLUDE_DIR:=include +DOCS_DIR:=docs + +SIBLING_ERLANDO_DIR:=../erlando +ERLANDO_SOURCE_DIR:=$(SIBLING_ERLANDO_DIR)/src +ERLANDO_SOURCES:=$(wildcard $(ERLANDO_SOURCE_DIR)/*.erl) +RABBIT_ERLANDO_SOURCES:=$(patsubst $(ERLANDO_SOURCE_DIR)/%.erl, $(SOURCE_DIR)/%.erl, $(ERLANDO_SOURCES)) + INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl -SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) +SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) $(RABBIT_ERLANDO_SOURCES) BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) WEB_URL=http://www.rabbitmq.com/ @@ -45,11 +51,8 @@ ifndef USE_SPECS USE_SPECS:=$(shell erl -noshell -eval 'io:format([list_to_integer(X) || X <- string:tokens(erlang:system_info(version), ".")] >= [5,8]), halt().') endif -SIBLING_ERLANDO_DIR:=../erlando/ -ERLANDO_EBIN_DIR:=$(SIBLING_ERLANDO_DIR)ebin/ - #other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(if $(filter true,$(USE_SPECS)),-Duse_specs) -pa $(ERLANDO_EBIN_DIR) +ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(if $(filter true,$(USE_SPECS)),-Duse_specs) VERSION=0.0.0 TARBALL_NAME=rabbitmq-server-$(VERSION) @@ -62,7 +65,7 @@ AMQP_SPEC_JSON_FILES_0_8=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.8.json ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e -ERL_EBIN=erl -noinput -pa $(EBIN_DIR) -pa $(ERLANDO_EBIN_DIR) +ERL_EBIN=erl -noinput -pa $(EBIN_DIR) define usage_xml_to_erl $(subst __,_,$(patsubst $(DOCS_DIR)/rabbitmq%.1.xml, $(SOURCE_DIR)/rabbit_%_usage.erl, $(subst -,_,$(1)))) @@ -96,6 +99,9 @@ $(DEPS_FILE): $(SOURCES) $(INCLUDES) rm -f $@ echo $(subst : ,:,$(foreach FILE,$^,$(FILE):)) | escript generate_deps $@ $(EBIN_DIR) +$(SOURCE_DIR)/%.erl: $(ERLANDO_SOURCE_DIR)/%.erl + cp -a $< $@ + $(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app escript generate_app $(EBIN_DIR) $@ < $< diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 1a89a90d..2f80eb96 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -68,11 +68,9 @@ RABBITMQ_START_RABBIT= [ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" -RABBITMQ_ERLANDO_EBIN_ROOT="${RABBITMQ_HOME}/../erlando/ebin" if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then if erl \ -pa "$RABBITMQ_EBIN_ROOT" \ - -pa "$RABBITMQ_ERLANDO_EBIN_ROOT" \ -noinput \ -hidden \ -s rabbit_prelaunch \ @@ -101,7 +99,6 @@ set -f exec erl \ ${RABBITMQ_EBIN_PATH} \ - -pa "$RABBITMQ_ERLANDO_EBIN_ROOT" \ ${RABBITMQ_START_RABBIT} \ -sname ${RABBITMQ_NODENAME} \ -boot ${RABBITMQ_BOOT_FILE} \ -- cgit v1.2.1 From 60884e7a7859bb085b118a40633f32572a6478c6 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 1 Apr 2011 16:53:13 +0100 Subject: Use a static pattern rule to avoid thinking we can create anything by copying, and tidy up in clean --- Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 0dcffde6..748d7b9b 100644 --- a/Makefile +++ b/Makefile @@ -99,7 +99,7 @@ $(DEPS_FILE): $(SOURCES) $(INCLUDES) rm -f $@ echo $(subst : ,:,$(foreach FILE,$^,$(FILE):)) | escript generate_deps $@ $(EBIN_DIR) -$(SOURCE_DIR)/%.erl: $(ERLANDO_SOURCE_DIR)/%.erl +$(RABBIT_ERLANDO_SOURCES): $(SOURCE_DIR)/%.erl: $(ERLANDO_SOURCE_DIR)/%.erl cp -a $< $@ $(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app @@ -144,6 +144,7 @@ clean: rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) rm -f $(RABBIT_PLT) rm -f $(DEPS_FILE) + rm -f $(RABBIT_ERLANDO_SOURCES) cleandb: rm -rf $(RABBITMQ_MNESIA_DIR)/* -- cgit v1.2.1 From d74a05136bec8922bed34994f9fa8b699cefeb7f Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 1 Apr 2011 16:59:25 +0100 Subject: Make srcdist work --- Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Makefile b/Makefile index 748d7b9b..db1854da 100644 --- a/Makefile +++ b/Makefile @@ -227,6 +227,8 @@ srcdist: distclean cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ cp codegen.py Makefile generate_app generate_deps calculate-relative $(TARGET_SRC_DIR) + cp $(ERLANDO_SOURCES) $(TARGET_SRC_DIR)/src/ + cp -r scripts $(TARGET_SRC_DIR) cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) chmod 0755 $(TARGET_SRC_DIR)/scripts/* -- cgit v1.2.1 From aefc3b65015ac246eddb5c715e6b1c4c723663b4 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 1 Apr 2011 17:13:15 +0100 Subject: Erlando state_t module changed its interface --- src/rabbit_tests.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index db315068..04aaa692 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -2296,7 +2296,7 @@ test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ) -> StateT = state_t:new(identity), SM = StateT:modify(_), - StateT:exec_state_t( + StateT:exec( do([StateT || SM(rabbit_variable_queue:set_ram_duration_target(0, _)), SM(variable_queue_publish(false, 4, _)), -- cgit v1.2.1 From 23a8ce31598260652f91dcf06a5ad854655699ec Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Sun, 3 Apr 2011 22:48:51 +0100 Subject: Honour renaming in erlando --- src/rabbit_tests.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 04aaa692..71de87c3 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -2294,7 +2294,7 @@ test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> VQ12. test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ) -> - StateT = state_t:new(identity), + StateT = state_t:new(identity_m), SM = StateT:modify(_), StateT:exec( do([StateT || -- cgit v1.2.1 From ca47e362ba08fd17087a9b0a5e6241278ca02e1c Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Sun, 3 Apr 2011 23:12:04 +0100 Subject: Support includes in erlando --- Makefile | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index db1854da..fe4cfb74 100644 --- a/Makefile +++ b/Makefile @@ -15,9 +15,13 @@ DOCS_DIR:=docs SIBLING_ERLANDO_DIR:=../erlando ERLANDO_SOURCE_DIR:=$(SIBLING_ERLANDO_DIR)/src ERLANDO_SOURCES:=$(wildcard $(ERLANDO_SOURCE_DIR)/*.erl) +ERLANDO_INCLUDE_DIR:=$(SIBLING_ERLANDO_DIR)/include +ERLANDO_INCLUDES:=$(wildcard $(ERLANDO_INCLUDE_DIR)/*.hrl) + RABBIT_ERLANDO_SOURCES:=$(patsubst $(ERLANDO_SOURCE_DIR)/%.erl, $(SOURCE_DIR)/%.erl, $(ERLANDO_SOURCES)) +RABBIT_ERLANDO_INCLUDES:=$(patsubst $(ERLANDO_INCLUDE_DIR)/%.hrl, $(INCLUDE_DIR)/%.hrl, $(ERLANDO_INCLUDES)) -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl +INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl $(RABBIT_ERLANDO_INCLUDES) SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) $(RABBIT_ERLANDO_SOURCES) BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) @@ -102,6 +106,9 @@ $(DEPS_FILE): $(SOURCES) $(INCLUDES) $(RABBIT_ERLANDO_SOURCES): $(SOURCE_DIR)/%.erl: $(ERLANDO_SOURCE_DIR)/%.erl cp -a $< $@ +$(RABBIT_ERLANDO_INCLUDES): $(INCLUDE_DIR)/%.hrl: $(ERLANDO_INCLUDE_DIR)/%.hrl + cp -a $< $@ + $(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app escript generate_app $(EBIN_DIR) $@ < $< @@ -144,7 +151,7 @@ clean: rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) rm -f $(RABBIT_PLT) rm -f $(DEPS_FILE) - rm -f $(RABBIT_ERLANDO_SOURCES) + rm -f $(RABBIT_ERLANDO_SOURCES) $(RABBIT_ERLANDO_INCLUDES) cleandb: rm -rf $(RABBITMQ_MNESIA_DIR)/* @@ -228,6 +235,7 @@ srcdist: distclean cp codegen.py Makefile generate_app generate_deps calculate-relative $(TARGET_SRC_DIR) cp $(ERLANDO_SOURCES) $(TARGET_SRC_DIR)/src/ + cp $(ERLANDO_INCLUDES) $(TARGET_SRC_DIR)/include/ cp -r scripts $(TARGET_SRC_DIR) cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) -- cgit v1.2.1 From 022b320bf132ba3f62ea624984aec41d6c4fe8c2 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 4 Apr 2011 12:29:04 +0100 Subject: Well this is clearly a daft solution so something better will have to be figured out. Can you include .hgigore files from other .hgignore files? --- .hgignore | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/.hgignore b/.hgignore index 703d078f..f75dd422 100644 --- a/.hgignore +++ b/.hgignore @@ -7,11 +7,17 @@ erl_crash.dump deps.mk src/cut.erl src/erlando.erl -src/error.erl -src/identity.erl -src/maybe.erl -src/monad.erl +src/error_m.erl +src/identity_m.erl +src/maybe_m.erl +src/list_m.erl +src/test_m.erl +src/omega_m.erl src/state_t.erl +src/monad.erl +src/monad_plus.erl +include/monad_specs.hrl +include/monad_plus_specs.hrl syntax: regexp ^cover/ -- cgit v1.2.1 From 2cdcc8c5f77331896757797a960ad901c3077a38 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 26 Apr 2011 16:24:35 +0100 Subject: Rename the init script's rotate-logs target to reopen-logs --- packaging/RPMS/Fedora/rabbitmq-server.logrotate | 2 +- packaging/common/rabbitmq-server.init | 12 ++++++------ packaging/debs/Debian/debian/rabbitmq-server.logrotate | 2 +- 3 files changed, 8 insertions(+), 8 deletions(-) diff --git a/packaging/RPMS/Fedora/rabbitmq-server.logrotate b/packaging/RPMS/Fedora/rabbitmq-server.logrotate index 6b657614..6ce02125 100644 --- a/packaging/RPMS/Fedora/rabbitmq-server.logrotate +++ b/packaging/RPMS/Fedora/rabbitmq-server.logrotate @@ -7,6 +7,6 @@ notifempty sharedscripts postrotate - /sbin/service rabbitmq-server rotate-logs > /dev/null + /sbin/service rabbitmq-server reopen-logs > /dev/null endscript } diff --git a/packaging/common/rabbitmq-server.init b/packaging/common/rabbitmq-server.init index d8a7a94d..15e3ee34 100644 --- a/packaging/common/rabbitmq-server.init +++ b/packaging/common/rabbitmq-server.init @@ -22,7 +22,6 @@ DAEMON=/usr/sbin/${NAME} CONTROL=/usr/sbin/rabbitmqctl DESC=rabbitmq-server USER=rabbitmq -ROTATE_SUFFIX= INIT_LOG_DIR=/var/log/rabbitmq LOCK_FILE= # This is filled in when building packages @@ -93,9 +92,10 @@ status_rabbitmq() { set -e } -rotate_logs_rabbitmq() { +reopen_logs_rabbitmq() { set +e - $CONTROL rotate_logs ${ROTATE_SUFFIX} + # Do not supply a suffix as we do not want to rotate the logs. + $CONTROL rotate_logs if [ $? != 0 ] ; then RETVAL=1 fi @@ -131,9 +131,9 @@ case "$1" in status) status_rabbitmq ;; - rotate-logs) + reopen-logs) echo -n "Rotating log files for $DESC: " - rotate_logs_rabbitmq + reopen_logs_rabbitmq ;; force-reload|reload|restart) echo -n "Restarting $DESC: " @@ -146,7 +146,7 @@ case "$1" in echo "$NAME." ;; *) - echo "Usage: $0 {start|stop|status|rotate-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 + echo "Usage: $0 {start|stop|status|reopen-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 RETVAL=1 ;; esac diff --git a/packaging/debs/Debian/debian/rabbitmq-server.logrotate b/packaging/debs/Debian/debian/rabbitmq-server.logrotate index c786df77..6c034ccf 100644 --- a/packaging/debs/Debian/debian/rabbitmq-server.logrotate +++ b/packaging/debs/Debian/debian/rabbitmq-server.logrotate @@ -7,6 +7,6 @@ notifempty sharedscripts postrotate - /etc/init.d/rabbitmq-server rotate-logs > /dev/null + /etc/init.d/rabbitmq-server reopen-logs > /dev/null endscript } -- cgit v1.2.1 From ab0be29295f94172932592f3466c560c08137095 Mon Sep 17 00:00:00 2001 From: Piotr Sikora Date: Fri, 29 Apr 2011 05:43:20 +0000 Subject: Bump sleep times during tests to 100ms. This fixes timing issues I was seeing on OpenBSD. Solution pointed out by Matthew Sackman. --- src/rabbit_tests.erl | 2 +- src/test_sup.erl | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 524e8e6e..6cb0dbf4 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1553,7 +1553,7 @@ test_logs_working(MainLogFile, SaslLogFile) -> ok = rabbit_log:error("foo bar"), ok = error_logger:error_report(crash_report, [foo, bar]), %% give the error loggers some time to catch up - timer:sleep(50), + timer:sleep(100), [true, true] = non_empty_files([MainLogFile, SaslLogFile]), ok. diff --git a/src/test_sup.erl b/src/test_sup.erl index 150235da..84c4121c 100644 --- a/src/test_sup.erl +++ b/src/test_sup.erl @@ -33,10 +33,10 @@ test_supervisor_delayed_restart() -> test_supervisor_delayed_restart(SupPid) -> ok = ping_child(SupPid), ok = exit_child(SupPid), - timer:sleep(10), + timer:sleep(100), ok = ping_child(SupPid), ok = exit_child(SupPid), - timer:sleep(10), + timer:sleep(100), timeout = ping_child(SupPid), timer:sleep(1010), ok = ping_child(SupPid), -- cgit v1.2.1 From 0548de8395c2aec5625056c3bd39325085d725a4 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 3 May 2011 14:44:34 +0100 Subject: pre-junk --- INSTALL.in | 10 - LICENSE | 5 - LICENSE-MPL-RabbitMQ | 455 ---- Makefile | 315 --- README.in | 10 - calculate-relative | 45 - codegen.py | 493 ---- docs/examples-to-end.xsl | 94 - docs/html-to-website-xml.xsl | 98 - docs/rabbitmq-env.conf.5.xml | 83 - docs/rabbitmq-server.1.xml | 131 -- docs/rabbitmq-service.xml | 217 -- docs/rabbitmqctl.1.xml | 1269 ---------- docs/remove-namespaces.xsl | 18 - docs/usage.xsl | 78 - ebin/rabbit_app.in | 45 - generate_app | 12 - generate_deps | 57 - include/gm_specs.hrl | 28 - include/rabbit.hrl | 101 - include/rabbit_auth_backend_spec.hrl | 32 - include/rabbit_auth_mechanism_spec.hrl | 28 - include/rabbit_backing_queue_spec.hrl | 70 - include/rabbit_exchange_type_spec.hrl | 36 - include/rabbit_msg_store.hrl | 25 - include/rabbit_msg_store_index.hrl | 45 - packaging/RPMS/Fedora/Makefile | 49 - packaging/RPMS/Fedora/rabbitmq-server.logrotate | 12 - packaging/RPMS/Fedora/rabbitmq-server.spec | 199 -- packaging/common/rabbitmq-script-wrapper | 42 - packaging/common/rabbitmq-server.init | 153 -- packaging/common/rabbitmq-server.ocf | 341 --- packaging/debs/Debian/Makefile | 45 - packaging/debs/Debian/check-changelog.sh | 29 - packaging/debs/Debian/debian/changelog | 162 -- packaging/debs/Debian/debian/compat | 1 - packaging/debs/Debian/debian/control | 15 - packaging/debs/Debian/debian/copyright | 502 ---- packaging/debs/Debian/debian/dirs | 9 - packaging/debs/Debian/debian/postinst | 60 - packaging/debs/Debian/debian/postrm.in | 73 - .../debs/Debian/debian/rabbitmq-server.logrotate | 12 - packaging/debs/Debian/debian/rules | 21 - packaging/debs/Debian/debian/watch | 4 - packaging/debs/apt-repository/Makefile | 28 - packaging/debs/apt-repository/README | 17 - .../debs/apt-repository/README-real-repository | 130 -- packaging/debs/apt-repository/distributions | 7 - packaging/debs/apt-repository/dupload.conf | 16 - packaging/generic-unix/Makefile | 23 - packaging/macports/Makefile | 59 - packaging/macports/Portfile.in | 118 - packaging/macports/make-checksums.sh | 14 - packaging/macports/make-port-diff.sh | 27 - .../patch-org.macports.rabbitmq-server.plist.diff | 10 - packaging/windows-exe/Makefile | 16 - packaging/windows-exe/rabbitmq.ico | Bin 4286 -> 0 bytes packaging/windows-exe/rabbitmq_nsi.in | 237 -- packaging/windows/Makefile | 35 - scripts/rabbitmq-env | 44 - scripts/rabbitmq-server | 117 - scripts/rabbitmq-server.bat | 156 -- scripts/rabbitmq-service.bat | 244 -- scripts/rabbitmqctl | 31 - scripts/rabbitmqctl.bat | 49 - src/bpqueue.erl | 271 --- src/delegate.erl | 154 -- src/delegate_sup.erl | 59 - src/file_handle_cache.erl | 1197 ---------- src/gatherer.erl | 130 -- src/gen_server2.erl | 1177 ---------- src/gm.erl | 1379 ----------- src/gm_soak_test.erl | 131 -- src/gm_speed_test.erl | 82 - src/gm_tests.erl | 182 -- src/pg_local.erl | 213 -- src/priority_queue.erl | 176 -- src/rabbit.erl | 513 ----- src/rabbit_access_control.erl | 141 -- src/rabbit_alarm.erl | 166 -- src/rabbit_amqqueue.erl | 506 ---- src/rabbit_amqqueue_process.erl | 1174 ---------- src/rabbit_amqqueue_sup.erl | 38 - src/rabbit_auth_backend.erl | 61 - src/rabbit_auth_backend_internal.erl | 328 --- src/rabbit_auth_mechanism.erl | 46 - src/rabbit_auth_mechanism_amqplain.erl | 58 - src/rabbit_auth_mechanism_cr_demo.erl | 60 - src/rabbit_auth_mechanism_plain.erl | 76 - src/rabbit_backing_queue.erl | 171 -- src/rabbit_basic.erl | 189 -- src/rabbit_binary_generator.erl | 337 --- src/rabbit_binary_parser.erl | 165 -- src/rabbit_binding.erl | 423 ---- src/rabbit_channel.erl | 1496 ------------ src/rabbit_channel_sup.erl | 93 - src/rabbit_channel_sup_sup.erl | 48 - src/rabbit_client_sup.erl | 48 - src/rabbit_command_assembler.erl | 133 -- src/rabbit_connection_sup.erl | 65 - src/rabbit_control.erl | 416 ---- src/rabbit_direct.erl | 79 - src/rabbit_error_logger.erl | 78 - src/rabbit_error_logger_file_h.erl | 68 - src/rabbit_event.erl | 137 -- src/rabbit_exchange.erl | 312 --- src/rabbit_exchange_type.erl | 50 - src/rabbit_exchange_type_direct.erl | 49 - src/rabbit_exchange_type_fanout.erl | 48 - src/rabbit_exchange_type_headers.erl | 122 - src/rabbit_exchange_type_topic.erl | 282 --- src/rabbit_framing.erl | 49 - src/rabbit_guid.erl | 119 - src/rabbit_heartbeat.erl | 149 -- src/rabbit_limiter.erl | 234 -- src/rabbit_log.erl | 132 -- src/rabbit_memory_monitor.erl | 280 --- src/rabbit_misc.erl | 873 ------- src/rabbit_mnesia.erl | 650 ------ src/rabbit_msg_file.erl | 125 - src/rabbit_msg_store.erl | 1938 ---------------- src/rabbit_msg_store_ets_index.erl | 79 - src/rabbit_msg_store_gc.erl | 137 -- src/rabbit_msg_store_index.erl | 32 - src/rabbit_net.erl | 119 - src/rabbit_networking.erl | 394 ---- src/rabbit_node_monitor.erl | 102 - src/rabbit_prelaunch.erl | 276 --- src/rabbit_queue_collector.erl | 92 - src/rabbit_queue_index.erl | 1072 --------- src/rabbit_reader.erl | 917 -------- src/rabbit_registry.erl | 124 - src/rabbit_restartable_sup.erl | 32 - src/rabbit_router.erl | 119 - src/rabbit_sasl_report_file_h.erl | 81 - src/rabbit_ssl.erl | 173 -- src/rabbit_sup.erl | 64 - src/rabbit_tests.erl | 2425 -------------------- src/rabbit_tests_event_receiver.erl | 51 - src/rabbit_types.erl | 161 -- src/rabbit_upgrade.erl | 287 --- src/rabbit_upgrade_functions.erl | 119 - src/rabbit_variable_queue.erl | 1840 --------------- src/rabbit_version.erl | 172 -- src/rabbit_vhost.erl | 106 - src/rabbit_writer.erl | 249 -- src/supervisor2.erl | 1015 -------- src/tcp_acceptor.erl | 106 - src/tcp_acceptor_sup.erl | 31 - src/tcp_listener.erl | 84 - src/tcp_listener_sup.erl | 51 - src/test_sup.erl | 81 - src/vm_memory_monitor.erl | 363 --- src/worker_pool.erl | 140 -- src/worker_pool_sup.erl | 53 - src/worker_pool_worker.erl | 106 - 156 files changed, 35836 deletions(-) delete mode 100644 INSTALL.in delete mode 100644 LICENSE delete mode 100644 LICENSE-MPL-RabbitMQ delete mode 100644 Makefile delete mode 100644 README.in delete mode 100755 calculate-relative delete mode 100644 codegen.py delete mode 100644 docs/examples-to-end.xsl delete mode 100644 docs/html-to-website-xml.xsl delete mode 100644 docs/rabbitmq-env.conf.5.xml delete mode 100644 docs/rabbitmq-server.1.xml delete mode 100644 docs/rabbitmq-service.xml delete mode 100644 docs/rabbitmqctl.1.xml delete mode 100644 docs/remove-namespaces.xsl delete mode 100644 docs/usage.xsl delete mode 100644 ebin/rabbit_app.in delete mode 100644 generate_app delete mode 100644 generate_deps delete mode 100644 include/gm_specs.hrl delete mode 100644 include/rabbit.hrl delete mode 100644 include/rabbit_auth_backend_spec.hrl delete mode 100644 include/rabbit_auth_mechanism_spec.hrl delete mode 100644 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Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/LICENSE b/LICENSE deleted file mode 100644 index 89640485..00000000 --- a/LICENSE +++ /dev/null @@ -1,5 +0,0 @@ -This package, the RabbitMQ server is licensed under the MPL. For the -MPL, please see LICENSE-MPL-RabbitMQ. - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. diff --git a/LICENSE-MPL-RabbitMQ b/LICENSE-MPL-RabbitMQ deleted file mode 100644 index 14bcc21d..00000000 --- a/LICENSE-MPL-RabbitMQ +++ /dev/null @@ -1,455 +0,0 @@ - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] diff --git a/Makefile b/Makefile deleted file mode 100644 index cdb86aad..00000000 --- a/Makefile +++ /dev/null @@ -1,315 +0,0 @@ -TMPDIR ?= /tmp - -RABBITMQ_NODENAME ?= rabbit -RABBITMQ_SERVER_START_ARGS ?= -RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia -RABBITMQ_PLUGINS_EXPAND_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-plugins-scratch -RABBITMQ_LOG_BASE ?= $(TMPDIR) - -DEPS_FILE=deps.mk -SOURCE_DIR=src -EBIN_DIR=ebin -INCLUDE_DIR=include -DOCS_DIR=docs -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl -SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) -BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) -TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) -WEB_URL=http://www.rabbitmq.com/ -MANPAGES=$(patsubst %.xml, %.gz, $(wildcard $(DOCS_DIR)/*.[0-9].xml)) -WEB_MANPAGES=$(patsubst %.xml, %.man.xml, $(wildcard $(DOCS_DIR)/*.[0-9].xml) $(DOCS_DIR)/rabbitmq-service.xml) -USAGES_XML=$(DOCS_DIR)/rabbitmqctl.1.xml -USAGES_ERL=$(foreach XML, $(USAGES_XML), $(call usage_xml_to_erl, $(XML))) - -ifeq ($(shell python -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python -else -ifeq ($(shell python2.6 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.6 -else -ifeq ($(shell python2.5 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.5 -else -# Hmm. Missing simplejson? -PYTHON=python -endif -endif -endif - -BASIC_PLT=basic.plt -RABBIT_PLT=rabbit.plt - -ifndef USE_SPECS -# our type specs rely on features and bug fixes in dialyzer that are -# only available in R14A upwards (R14A is erts 5.8) -USE_SPECS:=$(shell erl -noshell -eval 'io:format([list_to_integer(X) || X <- string:tokens(erlang:system_info(version), ".")] >= [5,8]), halt().') -endif - -#other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(if $(filter true,$(USE_SPECS)),-Duse_specs) - -VERSION=0.0.0 -TARBALL_NAME=rabbitmq-server-$(VERSION) -TARGET_SRC_DIR=dist/$(TARBALL_NAME) - -SIBLING_CODEGEN_DIR=../rabbitmq-codegen/ -AMQP_CODEGEN_DIR=$(shell [ -d $(SIBLING_CODEGEN_DIR) ] && echo $(SIBLING_CODEGEN_DIR) || echo codegen) -AMQP_SPEC_JSON_FILES_0_9_1=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.9.1.json -AMQP_SPEC_JSON_FILES_0_8=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.8.json - -ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e - -ERL_EBIN=erl -noinput -pa $(EBIN_DIR) - -define usage_xml_to_erl - $(subst __,_,$(patsubst $(DOCS_DIR)/rabbitmq%.1.xml, $(SOURCE_DIR)/rabbit_%_usage.erl, $(subst -,_,$(1)))) -endef - -define usage_dep - $(call usage_xml_to_erl, $(1)): $(1) $(DOCS_DIR)/usage.xsl -endef - -ifneq "$(SBIN_DIR)" "" -ifneq "$(TARGET_DIR)" "" -SCRIPTS_REL_PATH=$(shell ./calculate-relative $(TARGET_DIR)/sbin $(SBIN_DIR)) -endif -endif - -# Versions prior to this are not supported -NEED_MAKE := 3.80 -ifneq "$(NEED_MAKE)" "$(firstword $(sort $(NEED_MAKE) $(MAKE_VERSION)))" -$(error Versions of make prior to $(NEED_MAKE) are not supported) -endif - -# .DEFAULT_GOAL introduced in 3.81 -DEFAULT_GOAL_MAKE := 3.81 -ifneq "$(DEFAULT_GOAL_MAKE)" "$(firstword $(sort $(DEFAULT_GOAL_MAKE) $(MAKE_VERSION)))" -.DEFAULT_GOAL=all -endif - -all: $(TARGETS) - -$(DEPS_FILE): $(SOURCES) $(INCLUDES) - rm -f $@ - echo $(subst : ,:,$(foreach FILE,$^,$(FILE):)) | escript generate_deps $@ $(EBIN_DIR) - -$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(BEAM_TARGETS) generate_app - escript generate_app $(EBIN_DIR) $@ < $< - -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl | $(DEPS_FILE) - erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< - -$(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py --ignore-conflicts header $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_9_1) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_8) $@ - -dialyze: $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --no_native \ - -Wrace_conditions $(BEAM_TARGETS) - -# rabbit.plt is used by rabbitmq-erlang-client's dialyze make target -create-plt: $(RABBIT_PLT) - -$(RABBIT_PLT): $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --output_plt $@ --no_native \ - --add_to_plt $(BEAM_TARGETS) - -$(BASIC_PLT): $(BEAM_TARGETS) - if [ -f $@ ]; then \ - touch $@; \ - else \ - dialyzer --output_plt $@ --build_plt \ - --apps erts kernel stdlib compiler sasl os_mon mnesia tools \ - public_key crypto ssl; \ - fi - -clean: - rm -f $(EBIN_DIR)/*.beam - rm -f $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script $(EBIN_DIR)/rabbit.rel - rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCE_DIR)/rabbit_framing_amqp_*.erl codegen.pyc - rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) - rm -f $(RABBIT_PLT) - rm -f $(DEPS_FILE) - -cleandb: - rm -rf $(RABBITMQ_MNESIA_DIR)/* - -############ various tasks to interact with RabbitMQ ################### - -BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\ - RABBITMQ_NODE_IP_ADDRESS="$(RABBITMQ_NODE_IP_ADDRESS)" \ - RABBITMQ_NODE_PORT="$(RABBITMQ_NODE_PORT)" \ - RABBITMQ_LOG_BASE="$(RABBITMQ_LOG_BASE)" \ - RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" \ - RABBITMQ_PLUGINS_EXPAND_DIR="$(RABBITMQ_PLUGINS_EXPAND_DIR)" - -run: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-node: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-tests: all - echo "rabbit_tests:all_tests()." | $(ERL_CALL) - -start-background-node: - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server; sleep 1 - -start-rabbit-on-node: all - echo "rabbit:start()." | $(ERL_CALL) - -stop-rabbit-on-node: all - echo "rabbit:stop()." | $(ERL_CALL) - -set-memory-alarm: all - echo "alarm_handler:set_alarm({{vm_memory_high_watermark, node()}, []})." | \ - $(ERL_CALL) - -clear-memory-alarm: all - echo "alarm_handler:clear_alarm({vm_memory_high_watermark, node()})." | \ - $(ERL_CALL) - -stop-node: - -$(ERL_CALL) -q - -# code coverage will be created for subdirectory "ebin" of COVER_DIR -COVER_DIR=. - -start-cover: all - echo "rabbit_misc:start_cover([\"rabbit\", \"hare\"])." | $(ERL_CALL) - echo "rabbit_misc:enable_cover([\"$(COVER_DIR)\"])." | $(ERL_CALL) - -start-secondary-cover: all - echo "rabbit_misc:start_cover([\"hare\"])." | $(ERL_CALL) - -stop-cover: all - echo "rabbit_misc:report_cover(), cover:stop()." | $(ERL_CALL) - cat cover/summary.txt - -######################################################################## - -srcdist: distclean - mkdir -p $(TARGET_SRC_DIR)/codegen - cp -r ebin src include LICENSE LICENSE-MPL-RabbitMQ $(TARGET_SRC_DIR) - cp INSTALL.in $(TARGET_SRC_DIR)/INSTALL - elinks -dump -no-references -no-numbering $(WEB_URL)install.html \ - >> $(TARGET_SRC_DIR)/INSTALL - cp README.in $(TARGET_SRC_DIR)/README - elinks -dump -no-references -no-numbering $(WEB_URL)build-server.html \ - >> $(TARGET_SRC_DIR)/README - sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save - - cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ - cp codegen.py Makefile generate_app generate_deps calculate-relative $(TARGET_SRC_DIR) - - cp -r scripts $(TARGET_SRC_DIR) - cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) - chmod 0755 $(TARGET_SRC_DIR)/scripts/* - - (cd dist; tar -zcf $(TARBALL_NAME).tar.gz $(TARBALL_NAME)) - (cd dist; zip -r $(TARBALL_NAME).zip $(TARBALL_NAME)) - rm -rf $(TARGET_SRC_DIR) - -distclean: clean - $(MAKE) -C $(AMQP_CODEGEN_DIR) distclean - rm -rf dist - find . -regex '.*\(~\|#\|\.swp\|\.dump\)' -exec rm {} \; - -# xmlto can not read from standard input, so we mess with a tmp file. -%.gz: %.xml $(DOCS_DIR)/examples-to-end.xsl - xmlto --version | grep -E '^xmlto version 0\.0\.([0-9]|1[1-8])$$' >/dev/null || opt='--stringparam man.indent.verbatims=0' ; \ - xsltproc $(DOCS_DIR)/examples-to-end.xsl $< > $<.tmp && \ - xmlto -o $(DOCS_DIR) $$opt man $<.tmp && \ - gzip -f $(DOCS_DIR)/`basename $< .xml` - rm -f $<.tmp - -# Use tmp files rather than a pipeline so that we get meaningful errors -# Do not fold the cp into previous line, it's there to stop the file being -# generated but empty if we fail -$(SOURCE_DIR)/%_usage.erl: - xsltproc --stringparam modulename "`basename $@ .erl`" \ - $(DOCS_DIR)/usage.xsl $< > $@.tmp - sed -e 's/"/\\"/g' -e 's/%QUOTE%/"/g' $@.tmp > $@.tmp2 - fold -s $@.tmp2 > $@.tmp3 - mv $@.tmp3 $@ - rm $@.tmp $@.tmp2 - -# We rename the file before xmlto sees it since xmlto will use the name of -# the file to make internal links. -%.man.xml: %.xml $(DOCS_DIR)/html-to-website-xml.xsl - cp $< `basename $< .xml`.xml && \ - xmlto xhtml-nochunks `basename $< .xml`.xml ; rm `basename $< .xml`.xml - cat `basename $< .xml`.html | \ - xsltproc --novalid $(DOCS_DIR)/remove-namespaces.xsl - | \ - xsltproc --stringparam original `basename $<` $(DOCS_DIR)/html-to-website-xml.xsl - | \ - xmllint --format - > $@ - rm `basename $< .xml`.html - -docs_all: $(MANPAGES) $(WEB_MANPAGES) - -install: install_bin install_docs - -install_bin: all install_dirs - cp -r ebin include LICENSE LICENSE-MPL-RabbitMQ INSTALL $(TARGET_DIR) - - chmod 0755 scripts/* - for script in rabbitmq-env rabbitmq-server rabbitmqctl; do \ - cp scripts/$$script $(TARGET_DIR)/sbin; \ - [ -e $(SBIN_DIR)/$$script ] || ln -s $(SCRIPTS_REL_PATH)/$$script $(SBIN_DIR)/$$script; \ - done - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory. > $(TARGET_DIR)/plugins/README - -install_docs: docs_all install_dirs - for section in 1 5; do \ - mkdir -p $(MAN_DIR)/man$$section; \ - for manpage in $(DOCS_DIR)/*.$$section.gz; do \ - cp $$manpage $(MAN_DIR)/man$$section; \ - done; \ - done - -install_dirs: - @ OK=true && \ - { [ -n "$(TARGET_DIR)" ] || { echo "Please set TARGET_DIR."; OK=false; }; } && \ - { [ -n "$(SBIN_DIR)" ] || { echo "Please set SBIN_DIR."; OK=false; }; } && \ - { [ -n "$(MAN_DIR)" ] || { echo "Please set MAN_DIR."; OK=false; }; } && $$OK - - mkdir -p $(TARGET_DIR)/sbin - mkdir -p $(SBIN_DIR) - mkdir -p $(MAN_DIR) - -$(foreach XML,$(USAGES_XML),$(eval $(call usage_dep, $(XML)))) - -# Note that all targets which depend on clean must have clean in their -# name. Also any target that doesn't depend on clean should not have -# clean in its name, unless you know that you don't need any of the -# automatic dependency generation for that target (eg cleandb). - -# We want to load the dep file if *any* target *doesn't* contain -# "clean" - i.e. if removing all clean-like targets leaves something - -ifeq "$(MAKECMDGOALS)" "" -TESTABLEGOALS:=$(.DEFAULT_GOAL) -else -TESTABLEGOALS:=$(MAKECMDGOALS) -endif - -ifneq "$(strip $(patsubst clean%,,$(patsubst %clean,,$(TESTABLEGOALS))))" "" --include $(DEPS_FILE) -endif - diff --git a/README.in b/README.in deleted file mode 100644 index 0e70d0e7..00000000 --- a/README.in +++ /dev/null @@ -1,10 +0,0 @@ -Please see http://www.rabbitmq.com/build-server.html for build -instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/calculate-relative b/calculate-relative deleted file mode 100755 index 3af18e8f..00000000 --- a/calculate-relative +++ /dev/null @@ -1,45 +0,0 @@ -#!/usr/bin/env python -# -# relpath.py -# R.Barran 30/08/2004 -# Retrieved from http://code.activestate.com/recipes/302594/ - -import os -import sys - -def relpath(target, base=os.curdir): - """ - Return a relative path to the target from either the current dir or an optional base dir. - Base can be a directory specified either as absolute or relative to current dir. - """ - - if not os.path.exists(target): - raise OSError, 'Target does not exist: '+target - - if not os.path.isdir(base): - raise OSError, 'Base is not a directory or does not exist: '+base - - base_list = (os.path.abspath(base)).split(os.sep) - target_list = (os.path.abspath(target)).split(os.sep) - - # On the windows platform the target may be on a completely different drive from the base. - if os.name in ['nt','dos','os2'] and base_list[0] <> target_list[0]: - raise OSError, 'Target is on a different drive to base. Target: '+target_list[0].upper()+', base: '+base_list[0].upper() - - # Starting from the filepath root, work out how much of the filepath is - # shared by base and target. - for i in range(min(len(base_list), len(target_list))): - if base_list[i] <> target_list[i]: break - else: - # If we broke out of the loop, i is pointing to the first differing path elements. - # If we didn't break out of the loop, i is pointing to identical path elements. - # Increment i so that in all cases it points to the first differing path elements. - i+=1 - - rel_list = [os.pardir] * (len(base_list)-i) + target_list[i:] - if (len(rel_list) == 0): - return "." - return os.path.join(*rel_list) - -if __name__ == "__main__": - print(relpath(sys.argv[1], sys.argv[2])) diff --git a/codegen.py b/codegen.py deleted file mode 100644 index 8cd9dab8..00000000 --- a/codegen.py +++ /dev/null @@ -1,493 +0,0 @@ -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -from __future__ import nested_scopes - -import sys -sys.path.append("../rabbitmq-codegen") # in case we're next to an experimental revision -sys.path.append("codegen") # in case we're building from a distribution package - -from amqp_codegen import * -import string -import re - -erlangTypeMap = { - 'octet': 'octet', - 'shortstr': 'shortstr', - 'longstr': 'longstr', - 'short': 'shortint', - 'long': 'longint', - 'longlong': 'longlongint', - 'bit': 'bit', - 'table': 'table', - 'timestamp': 'timestamp', -} - -# Coming up with a proper encoding of AMQP tables in JSON is too much -# hassle at this stage. Given that the only default value we are -# interested in is for the empty table, we only support that. -def convertTable(d): - if len(d) == 0: - return "[]" - else: raise 'Non-empty table defaults not supported', d - -erlangDefaultValueTypeConvMap = { - bool : lambda x: str(x).lower(), - str : lambda x: "<<\"" + x + "\">>", - int : lambda x: str(x), - float : lambda x: str(x), - dict: convertTable, - unicode: lambda x: "<<\"" + x.encode("utf-8") + "\">>" -} - -def erlangize(s): - s = s.replace('-', '_') - s = s.replace(' ', '_') - return s - -AmqpMethod.erlangName = lambda m: "'" + erlangize(m.klass.name) + '.' + erlangize(m.name) + "'" - -AmqpClass.erlangName = lambda c: "'" + erlangize(c.name) + "'" - -def erlangConstantName(s): - return '_'.join(re.split('[- ]', s.upper())) - -class PackedMethodBitField: - def __init__(self, index): - self.index = index - self.domain = 'bit' - self.contents = [] - - def extend(self, f): - self.contents.append(f) - - def count(self): - return len(self.contents) - - def full(self): - return self.count() == 8 - -def multiLineFormat(things, prologue, separator, lineSeparator, epilogue, thingsPerLine = 4): - r = [prologue] - i = 0 - for t in things: - if i != 0: - if i % thingsPerLine == 0: - r += [lineSeparator] - else: - r += [separator] - r += [t] - i += 1 - r += [epilogue] - return "".join(r) - -def prettyType(typeName, subTypes, typesPerLine = 4): - """Pretty print a type signature made up of many alternative subtypes""" - sTs = multiLineFormat(subTypes, - "( ", " | ", "\n | ", " )", - thingsPerLine = typesPerLine) - return "-type(%s ::\n %s)." % (typeName, sTs) - -def printFileHeader(): - print """%% Autogenerated code. Do not edit. -%% -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%%""" - -def genErl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldTypeList(fields): - return '[' + ', '.join([erlType(f.domain) for f in fields]) + ']' - - def fieldNameList(fields): - return '[' + ', '.join([erlangize(f.name) for f in fields]) + ']' - - def fieldTempList(fields): - return '[' + ', '.join(['F' + str(f.index) for f in fields]) + ']' - - def fieldMapList(fields): - return ', '.join([erlangize(f.name) + " = F" + str(f.index) for f in fields]) - - def genLookupMethodName(m): - print "lookup_method_name({%d, %d}) -> %s;" % (m.klass.index, m.index, m.erlangName()) - - def genLookupClassName(c): - print "lookup_class_name(%d) -> %s;" % (c.index, c.erlangName()) - - def genMethodId(m): - print "method_id(%s) -> {%d, %d};" % (m.erlangName(), m.klass.index, m.index) - - def genMethodHasContent(m): - print "method_has_content(%s) -> %s;" % (m.erlangName(), str(m.hasContent).lower()) - - def genMethodIsSynchronous(m): - hasNoWait = "nowait" in fieldNameList(m.arguments) - if m.isSynchronous and hasNoWait: - print "is_method_synchronous(#%s{nowait = NoWait}) -> not(NoWait);" % (m.erlangName()) - else: - print "is_method_synchronous(#%s{}) -> %s;" % (m.erlangName(), str(m.isSynchronous).lower()) - - def genMethodFieldTypes(m): - """Not currently used - may be useful in future?""" - print "method_fieldtypes(%s) -> %s;" % (m.erlangName(), fieldTypeList(m.arguments)) - - def genMethodFieldNames(m): - print "method_fieldnames(%s) -> %s;" % (m.erlangName(), fieldNameList(m.arguments)) - - def packMethodFields(fields): - packed = [] - bitfield = None - for f in fields: - if erlType(f.domain) == 'bit': - if not(bitfield) or bitfield.full(): - bitfield = PackedMethodBitField(f.index) - packed.append(bitfield) - bitfield.extend(f) - else: - bitfield = None - packed.append(f) - return packed - - def methodFieldFragment(f): - type = erlType(f.domain) - p = 'F' + str(f.index) - if type == 'shortstr': - return p+'Len:8/unsigned, '+p+':'+p+'Len/binary' - elif type == 'longstr': - return p+'Len:32/unsigned, '+p+':'+p+'Len/binary' - elif type == 'octet': - return p+':8/unsigned' - elif type == 'shortint': - return p+':16/unsigned' - elif type == 'longint': - return p+':32/unsigned' - elif type == 'longlongint': - return p+':64/unsigned' - elif type == 'timestamp': - return p+':64/unsigned' - elif type == 'bit': - return p+'Bits:8' - elif type == 'table': - return p+'Len:32/unsigned, '+p+'Tab:'+p+'Len/binary' - - def genFieldPostprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - for index in range(f.count()): - print " F%d = ((F%dBits band %d) /= 0)," % \ - (f.index + index, - f.index, - 1 << index) - elif type == 'table': - print " F%d = rabbit_binary_parser:parse_table(F%dTab)," % \ - (f.index, f.index) - else: - pass - - def genMethodRecord(m): - print "method_record(%s) -> #%s{};" % (m.erlangName(), m.erlangName()) - - def genDecodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - binaryPattern = ', '.join([methodFieldFragment(f) for f in packedFields]) - if binaryPattern: - restSeparator = ', ' - else: - restSeparator = '' - recordConstructorExpr = '#%s{%s}' % (m.erlangName(), fieldMapList(m.arguments)) - print "decode_method_fields(%s, <<%s>>) ->" % (m.erlangName(), binaryPattern) - genFieldPostprocessing(packedFields) - print " %s;" % (recordConstructorExpr,) - - def genDecodeProperties(c): - print "decode_properties(%d, PropBin) ->" % (c.index) - print " %s = rabbit_binary_parser:parse_properties(%s, PropBin)," % \ - (fieldTempList(c.fields), fieldTypeList(c.fields)) - print " #'P_%s'{%s};" % (erlangize(c.name), fieldMapList(c.fields)) - - def genFieldPreprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - print " F%dBits = (%s)," % \ - (f.index, - ' bor '.join(['(bitvalue(F%d) bsl %d)' % (x.index, x.index - f.index) - for x in f.contents])) - elif type == 'table': - print " F%dTab = rabbit_binary_generator:generate_table(F%d)," % (f.index, f.index) - print " F%dLen = size(F%dTab)," % (f.index, f.index) - elif type == 'shortstr': - print " F%dLen = shortstr_size(F%d)," % (f.index, f.index) - elif type == 'longstr': - print " F%dLen = size(F%d)," % (f.index, f.index) - else: - pass - - def genEncodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - print "encode_method_fields(#%s{%s}) ->" % (m.erlangName(), fieldMapList(m.arguments)) - genFieldPreprocessing(packedFields) - print " <<%s>>;" % (', '.join([methodFieldFragment(f) for f in packedFields])) - - def genEncodeProperties(c): - print "encode_properties(#'P_%s'{%s}) ->" % (erlangize(c.name), fieldMapList(c.fields)) - print " rabbit_binary_generator:encode_properties(%s, %s);" % \ - (fieldTypeList(c.fields), fieldTempList(c.fields)) - - def messageConstantClass(cls): - # We do this because 0.8 uses "soft error" and 8.1 uses "soft-error". - return erlangConstantName(cls) - - def genLookupException(c,v,cls): - mCls = messageConstantClass(cls) - if mCls == 'SOFT_ERROR': genLookupException1(c,'false') - elif mCls == 'HARD_ERROR': genLookupException1(c, 'true') - elif mCls == '': pass - else: raise 'Unknown constant class', cls - - def genLookupException1(c,hardErrorBoolStr): - n = erlangConstantName(c) - print 'lookup_amqp_exception(%s) -> {%s, ?%s, <<"%s">>};' % \ - (n.lower(), hardErrorBoolStr, n, n) - - def genAmqpException(c,v,cls): - n = erlangConstantName(c) - print 'amqp_exception(?%s) -> %s;' % \ - (n, n.lower()) - - methods = spec.allMethods() - - printFileHeader() - module = "rabbit_framing_amqp_%d_%d" % (spec.major, spec.minor) - if spec.revision != 0: - module = "%s_%d" % (module, spec.revision) - if module == "rabbit_framing_amqp_8_0": - module = "rabbit_framing_amqp_0_8" - print "-module(%s)." % module - print """-include("rabbit_framing.hrl"). - --export([version/0]). --export([lookup_method_name/1]). --export([lookup_class_name/1]). - --export([method_id/1]). --export([method_has_content/1]). --export([is_method_synchronous/1]). --export([method_record/1]). --export([method_fieldnames/1]). --export([decode_method_fields/2]). --export([decode_properties/2]). --export([encode_method_fields/1]). --export([encode_properties/1]). --export([lookup_amqp_exception/1]). --export([amqp_exception/1]). - -""" - print "%% Various types" - print "-ifdef(use_specs)." - - print """-export_type([amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(amqp_field_type() :: - 'longstr' | 'signedint' | 'decimal' | 'timestamp' | - 'table' | 'byte' | 'double' | 'float' | 'long' | - 'short' | 'bool' | 'binary' | 'void' | 'array'). --type(amqp_property_type() :: - 'shortstr' | 'longstr' | 'octet' | 'shortint' | 'longint' | - 'longlongint' | 'timestamp' | 'bit' | 'table'). - --type(amqp_table() :: [{binary(), amqp_field_type(), amqp_value()}]). --type(amqp_array() :: [{amqp_field_type(), amqp_value()}]). --type(amqp_value() :: binary() | % longstr - integer() | % signedint - {non_neg_integer(), non_neg_integer()} | % decimal - amqp_table() | - amqp_array() | - byte() | % byte - float() | % double - integer() | % long - integer() | % short - boolean() | % bool - binary() | % binary - 'undefined' | % void - non_neg_integer() % timestamp - ). -""" - - print prettyType("amqp_method_name()", - [m.erlangName() for m in methods]) - print prettyType("amqp_method()", - ["{%s, %s}" % (m.klass.index, m.index) for m in methods], - 6) - print prettyType("amqp_method_record()", - ["#%s{}" % (m.erlangName()) for m in methods]) - fieldNames = set() - for m in methods: - fieldNames.update(m.arguments) - fieldNames = [erlangize(f.name) for f in fieldNames] - print prettyType("amqp_method_field_name()", - fieldNames) - print prettyType("amqp_property_record()", - ["#'P_%s'{}" % erlangize(c.name) for c in spec.allClasses()]) - print prettyType("amqp_exception()", - ["'%s'" % erlangConstantName(c).lower() for (c, v, cls) in spec.constants]) - print prettyType("amqp_exception_code()", - ["%i" % v for (c, v, cls) in spec.constants]) - classIds = set() - for m in spec.allMethods(): - classIds.add(m.klass.index) - print prettyType("amqp_class_id()", - ["%i" % ci for ci in classIds]) - print "-endif. % use_specs" - - print """ -%% Method signatures --ifdef(use_specs). --spec(version/0 :: () -> {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --spec(lookup_method_name/1 :: (amqp_method()) -> amqp_method_name()). --spec(method_id/1 :: (amqp_method_name()) -> amqp_method()). --spec(method_has_content/1 :: (amqp_method_name()) -> boolean()). --spec(is_method_synchronous/1 :: (amqp_method_record()) -> boolean()). --spec(method_record/1 :: (amqp_method_name()) -> amqp_method_record()). --spec(method_fieldnames/1 :: (amqp_method_name()) -> [amqp_method_field_name()]). --spec(decode_method_fields/2 :: - (amqp_method_name(), binary()) -> amqp_method_record() | rabbit_types:connection_exit()). --spec(decode_properties/2 :: (non_neg_integer(), binary()) -> amqp_property_record()). --spec(encode_method_fields/1 :: (amqp_method_record()) -> binary()). --spec(encode_properties/1 :: (amqp_property_record()) -> binary()). --spec(lookup_amqp_exception/1 :: (amqp_exception()) -> {boolean(), amqp_exception_code(), binary()}). --spec(amqp_exception/1 :: (amqp_exception_code()) -> amqp_exception()). --endif. % use_specs - -bitvalue(true) -> 1; -bitvalue(false) -> 0; -bitvalue(undefined) -> 0. - -shortstr_size(S) -> - case size(S) of - Len when Len =< 255 -> Len; - _ -> exit(method_field_shortstr_overflow) - end. -""" - version = "{%d, %d, %d}" % (spec.major, spec.minor, spec.revision) - if version == '{8, 0, 0}': version = '{0, 8, 0}' - print "version() -> %s." % (version) - - for m in methods: genLookupMethodName(m) - print "lookup_method_name({_ClassId, _MethodId} = Id) -> exit({unknown_method_id, Id})." - - for c in spec.allClasses(): genLookupClassName(c) - print "lookup_class_name(ClassId) -> exit({unknown_class_id, ClassId})." - - for m in methods: genMethodId(m) - print "method_id(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodHasContent(m) - print "method_has_content(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodIsSynchronous(m) - print "is_method_synchronous(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodRecord(m) - print "method_record(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodFieldNames(m) - print "method_fieldnames(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genDecodeMethodFields(m) - print "decode_method_fields(Name, BinaryFields) ->" - print " rabbit_misc:frame_error(Name, BinaryFields)." - - for c in spec.allClasses(): genDecodeProperties(c) - print "decode_properties(ClassId, _BinaryFields) -> exit({unknown_class_id, ClassId})." - - for m in methods: genEncodeMethodFields(m) - print "encode_method_fields(Record) -> exit({unknown_method_name, element(1, Record)})." - - for c in spec.allClasses(): genEncodeProperties(c) - print "encode_properties(Record) -> exit({unknown_properties_record, Record})." - - for (c,v,cls) in spec.constants: genLookupException(c,v,cls) - print "lookup_amqp_exception(Code) ->" - print " rabbit_log:warning(\"Unknown AMQP error code '~p'~n\", [Code])," - print " {true, ?INTERNAL_ERROR, <<\"INTERNAL_ERROR\">>}." - - for(c,v,cls) in spec.constants: genAmqpException(c,v,cls) - print "amqp_exception(_Code) -> undefined." - -def genHrl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldNameList(fields): - return ', '.join([erlangize(f.name) for f in fields]) - - def fieldNameListDefaults(fields): - def fillField(field): - result = erlangize(f.name) - if field.defaultvalue != None: - conv_fn = erlangDefaultValueTypeConvMap[type(field.defaultvalue)] - result += ' = ' + conv_fn(field.defaultvalue) - return result - return ', '.join([fillField(f) for f in fields]) - - methods = spec.allMethods() - - printFileHeader() - print "-define(PROTOCOL_PORT, %d)." % (spec.port) - - for (c,v,cls) in spec.constants: - print "-define(%s, %s)." % (erlangConstantName(c), v) - - print "%% Method field records." - for m in methods: - print "-record(%s, {%s})." % (m.erlangName(), fieldNameListDefaults(m.arguments)) - - print "%% Class property records." - for c in spec.allClasses(): - print "-record('P_%s', {%s})." % (erlangize(c.name), fieldNameList(c.fields)) - - -def generateErl(specPath): - genErl(AmqpSpec(specPath)) - -def generateHrl(specPath): - genHrl(AmqpSpec(specPath)) - -if __name__ == "__main__": - do_main_dict({"header": generateHrl, - "body": generateErl}) - diff --git a/docs/examples-to-end.xsl b/docs/examples-to-end.xsl deleted file mode 100644 index d9686ada..00000000 --- a/docs/examples-to-end.xsl +++ /dev/null @@ -1,94 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - Examples - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [] - - - - {} - - - - - - - - diff --git a/docs/html-to-website-xml.xsl b/docs/html-to-website-xml.xsl deleted file mode 100644 index 4bfcf6ca..00000000 --- a/docs/html-to-website-xml.xsl +++ /dev/null @@ -1,98 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - -type="text/xml" href="page.xsl" - - - <xsl:value-of select="document($original)/refentry/refnamediv/refname"/><xsl:if test="document($original)/refentry/refmeta/manvolnum">(<xsl:value-of select="document($original)/refentry/refmeta/manvolnum"/>)</xsl:if> manual page - 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- - - - diff --git a/docs/rabbitmq-env.conf.5.xml b/docs/rabbitmq-env.conf.5.xml deleted file mode 100644 index c887596c..00000000 --- a/docs/rabbitmq-env.conf.5.xml +++ /dev/null @@ -1,83 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-env.conf - 5 - RabbitMQ Server - - - - rabbitmq-env.conf - default settings for RabbitMQ AMQP server - - - - Description - -/etc/rabbitmq/rabbitmq-env.conf contains variable settings that override the -defaults built in to the RabbitMQ startup scripts. - - -The file is interpreted by the system shell, and so should consist of -a sequence of shell environment variable definitions. Normal shell -syntax is permitted (since the file is sourced using the shell "." -operator), including line comments starting with "#". - - -In order of preference, the startup scripts get their values from the -environment, from /etc/rabbitmq/rabbitmq-env.conf and finally from the -built-in default values. For example, for the RABBITMQ_NODENAME -setting, - - - RABBITMQ_NODENAME - - -from the environment is checked first. If it is absent or equal to the -empty string, then - - - NODENAME - - -from /etc/rabbitmq/rabbitmq-env.conf is checked. If it is also absent -or set equal to the empty string then the default value from the -startup script is used. - - -The variable names in /etc/rabbitmq/rabbitmq-env.conf are always equal to the -environment variable names, with the RABBITMQ_ prefix removed: -RABBITMQ_NODE_PORT from the environment becomes NODE_PORT in the -/etc/rabbitmq/rabbitmq-env.conf file, etc. - - For example: - -# I am a complete /etc/rabbitmq/rabbitmq-env.conf file. -# Comment lines start with a hash character. -# This is a /bin/sh script file - use ordinary envt var syntax -NODENAME=hare - - - This is an example of a complete - /etc/rabbitmq/rabbitmq-env.conf file that overrides the default Erlang - node name from "rabbit" to "hare". - - - - - - See also - - rabbitmq-server1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-server.1.xml b/docs/rabbitmq-server.1.xml deleted file mode 100644 index ca63927c..00000000 --- a/docs/rabbitmq-server.1.xml +++ /dev/null @@ -1,131 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-server - 1 - RabbitMQ Server - - - - rabbitmq-server - start RabbitMQ AMQP server - - - - - rabbitmq-server - -detached - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-server in the foreground displays a banner message, -and reports on progress in the startup sequence, concluding with the -message "broker running", indicating that the RabbitMQ broker has been -started successfully. To shut down the server, just terminate the -process or use rabbitmqctl(1). - - - - - Environment - - - - RABBITMQ_MNESIA_BASE - - -Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory where -Mnesia database files should be placed. - - - - - - RABBITMQ_LOG_BASE - - -Defaults to /var/log/rabbitmq. Log files generated by the server will -be placed in this directory. - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - - - - Options - - - -detached - - - start the server process in the background - - For example: - rabbitmq-server -detached - - Runs RabbitMQ AMQP server in the background. - - - - - - - - See also - - rabbitmq-env.conf5 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-service.xml b/docs/rabbitmq-service.xml deleted file mode 100644 index 3368960b..00000000 --- a/docs/rabbitmq-service.xml +++ /dev/null @@ -1,217 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-service.bat - RabbitMQ Server - - - - rabbitmq-service.bat - manage RabbitMQ AMQP service - - - - - rabbitmq-service.bat - command - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-service allows the RabbitMQ broker to be run as a -service on NT/2000/2003/XP/Vista® environments. The RabbitMQ broker -service can be started and stopped using the Windows® services -applet. - - -By default the service will run in the authentication context of the -local system account. It is therefore necessary to synchronise Erlang -cookies between the local system account (typically -C:\WINDOWS\.erlang.cookie and the account that will be used to -run rabbitmqctl. - - - - - Commands - - - - help - - -Display usage information. - - - - - - install - - -Install the service. The service will not be started. -Subsequent invocations will update the service parameters if -relevant environment variables were modified. - - - - - - remove - - -Remove the service. If the service is running then it will -automatically be stopped before being removed. No files will be -deleted as a consequence and rabbitmq-server will remain operable. - - - - - - start - - -Start the service. The service must have been correctly installed -beforehand. - - - - - - stop - - -Stop the service. The service must be running for this command to -have any effect. - - - - - - disable - - -Disable the service. This is the equivalent of setting the startup -type to Disabled using the service control panel. - - - - - - enable - - -Enable the service. This is the equivalent of setting the startup -type to Automatic using the service control panel. - - - - - - - - Environment - - - - RABBITMQ_SERVICENAME - - -Defaults to RabbitMQ. - - - - - - RABBITMQ_BASE - - -Defaults to the application data directory of the current user. -This is the location of log and database directories. - - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - ERLANG_SERVICE_MANAGER_PATH - - -Defaults to C:\Program Files\erl5.5.5\erts-5.5.5\bin -(or C:\Program Files (x86)\erl5.5.5\erts-5.5.5\bin for 64-bit -environments). This is the installation location of the Erlang service -manager. - - - - - - RABBITMQ_CONSOLE_LOG - - -Set this varable to new or reuse to have the console -output from the server redirected to a file named SERVICENAME.debug -in the application data directory of the user that installed the service. -Under Vista this will be C:\Users\AppData\username\SERVICENAME. -Under previous versions of Windows this will be -C:\Documents and Settings\username\Application Data\SERVICENAME. -If RABBITMQ_CONSOLE_LOG is set to new then a new file will be -created each time the service starts. If RABBITMQ_CONSOLE_LOG is -set to reuse then the file will be overwritten each time the -service starts. The default behaviour when RABBITMQ_CONSOLE_LOG is -not set or set to a value other than new or reuse is to discard -the server output. - - - - - - diff --git a/docs/rabbitmqctl.1.xml b/docs/rabbitmqctl.1.xml deleted file mode 100644 index 3550e5ea..00000000 --- a/docs/rabbitmqctl.1.xml +++ /dev/null @@ -1,1269 +0,0 @@ - - - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmqctl - 1 - RabbitMQ Service - - - - rabbitmqctl - command line tool for managing a RabbitMQ broker - - - - - rabbitmqctl - -n node - -q - command - command options - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. - - - rabbitmqctl is a command line tool for managing a - RabbitMQ broker. It performs all actions by connecting to one of the - broker's nodes. - - - - - Options - - - -n node - - - Default node is "rabbit@server", where server is the local host. On - a host named "server.example.com", the node name of the RabbitMQ - Erlang node will usually be rabbit@server (unless RABBITMQ_NODENAME - has been set to some non-default value at broker startup time). The - output of hostname -s is usually the correct suffix to use after the - "@" sign. See rabbitmq-server(1) for details of configuring the - RabbitMQ broker. - - - - - -q - - - Quiet output mode is selected with the "-q" flag. Informational - messages are suppressed when quiet mode is in effect. - - - - - - - - Commands - - - Application and Cluster Management - - - - stop - - - Stops the Erlang node on which RabbitMQ is running. To - restart the node follow the instructions for Running - the Server in the installation - guide. - - For example: - rabbitmqctl stop - - This command instructs the RabbitMQ node to terminate. - - - - - - stop_app - - - Stops the RabbitMQ application, leaving the Erlang node - running. - - - This command is typically run prior to performing other - management actions that require the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl stop_app - - This command instructs the RabbitMQ node to stop the - RabbitMQ application. - - - - - - start_app - - - Starts the RabbitMQ application. - - - This command is typically run after performing other - management actions that required the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl start_app - - This command instructs the RabbitMQ node to start the - RabbitMQ application. - - - - - - wait - - - Wait for the RabbitMQ application to start. - - - This command will wait for the RabbitMQ application to - start at the node. As long as the Erlang node is up but - the RabbitMQ application is down it will wait - indefinitely. If the node itself goes down, or takes - more than five seconds to come up, it will fail. - - For example: - rabbitmqctl wait - - This command will return when the RabbitMQ node has - started up. - - - - - - status - - - Displays various information about the RabbitMQ broker, - such as whether the RabbitMQ application on the current - node, its version number, what nodes are part of the - broker, which of these are running. - - For example: - rabbitmqctl status - - This command displays information about the RabbitMQ - broker. - - - - - - reset - - - Return a RabbitMQ node to its virgin state. - - - Removes the node from any cluster it belongs to, removes - all data from the management database, such as configured - users and vhosts, and deletes all persistent - messages. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl reset - - This command resets the RabbitMQ node. - - - - - - force_reset - - - Forcefully return a RabbitMQ node to its virgin state. - - - The force_reset command differs from - reset in that it resets the node - unconditionally, regardless of the current management - database state and cluster configuration. It should only - be used as a last resort if the database or cluster - configuration has been corrupted. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl force_reset - - This command resets the RabbitMQ node. - - - - - - rotate_logs suffix - - - Instruct the RabbitMQ node to rotate the log files. - - - The RabbitMQ broker will attempt to append the current contents - of the log file to the file with name composed of the original - name and the suffix. - It will create a new file if such a file does not already exist. - When no is specified, the empty log file is - simply created at the original location; no rotation takes place. - - - When an error occurs while appending the contents of the old log - file, the operation behaves in the same way as if no was - specified. - - - This command might be helpful when you are e.g. writing your - own logrotate script and you do not want to restart the RabbitMQ - node. - - For example: - rabbitmqctl rotate_logs .1 - - This command instructs the RabbitMQ node to append the current content - of the log files to the files with names consisting of the original logs' - names and ".1" suffix, e.g. rabbit.log.1. Finally, the old log files are reopened. - - - - - - - - Cluster management - - - - cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. To cluster with currently offline nodes, - use force_cluster. - - - Cluster nodes can be of two types: disk or ram. Disk nodes - replicate data in ram and on disk, thus providing - redundancy in the event of node failure and recovery from - global events such as power failure across all nodes. Ram - nodes replicate data in ram only and are mainly used for - scalability. A cluster must always have at least one disk node. - - - If the current node is to become a disk node it needs to - appear in the cluster node list. Otherwise it becomes a - ram node. If the node list is empty or only contains the - current node then the node becomes a standalone, - i.e. non-clustered, (disk) node. - - - After executing the cluster command, whenever - the RabbitMQ application is started on the current node it - will attempt to connect to the specified nodes, thus - becoming an active node in the cluster comprising those - nodes (and possibly others). - - - The list of nodes does not have to contain all the - cluster's nodes; a subset is sufficient. Also, clustering - generally succeeds as long as at least one of the - specified nodes is active. Hence adjustments to the list - are only necessary if the cluster configuration is to be - altered radically. - - - For this command to succeed the RabbitMQ application must - have been stopped, e.g. with stop_app. Furthermore, - turning a standalone node into a clustered node requires - the node be reset first, - in order to avoid accidental destruction of data with the - cluster command. - - - For more details see the clustering guide. - - For example: - rabbitmqctl cluster rabbit@tanto hare@elena - - This command instructs the RabbitMQ node to join the - cluster with nodes rabbit@tanto and - hare@elena. If the node is one of these then - it becomes a disk node, otherwise a ram node. - - - - - force_cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. This will succeed even if the specified nodes - are offline. For a more detailed description, see - cluster. - - - Note that this variant of the cluster command just - ignores the current status of the specified nodes. - Clustering may still fail for a variety of other - reasons. - - - - - - - - Closing individual connections - - - - close_connection connectionpid explanation - - - - connectionpid - Id of the Erlang process associated with the connection to close. - - - explanation - Explanation string. - - - - Instruct the broker to close the connection associated - with the Erlang process id (see also the - list_connections - command), passing the string to the - connected client as part of the AMQP connection shutdown - protocol. - - For example: - rabbitmqctl close_connection "<rabbit@tanto.4262.0>" "go away" - - This command instructs the RabbitMQ broker to close the - connection associated with the Erlang process - id <rabbit@tanto.4262.0>, passing the - explanation go away to the connected client. - - - - - - - - User management - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Users from any alternative - authentication backend will not be visible - to rabbitmqctl. - - - - add_user username password - - - - username - The name of the user to create. - - - password - The password the created user will use to log in to the broker. - - - For example: - rabbitmqctl add_user tonyg changeit - - This command instructs the RabbitMQ broker to create a - (non-administrative) user named tonyg with - (initial) password - changeit. - - - - - - delete_user username - - - - username - The name of the user to delete. - - - For example: - rabbitmqctl delete_user tonyg - - This command instructs the RabbitMQ broker to delete the - user named tonyg. - - - - - - change_password username newpassword - - - - username - The name of the user whose password is to be changed. - - - newpassword - The new password for the user. - - - For example: - rabbitmqctl change_password tonyg newpass - - This command instructs the RabbitMQ broker to change the - password for the user named tonyg to - newpass. - - - - - - clear_password username - - - - username - The name of the user whose password is to be cleared. - - - For example: - rabbitmqctl clear_password tonyg - - This command instructs the RabbitMQ broker to clear the - password for the user named - tonyg. This user now cannot log in with a password (but may be able to through e.g. SASL EXTERNAL if configured). - - - - - - set_admin username - - - - username - The name of the user whose administrative - status is to be set. - - - For example: - rabbitmqctl set_admin tonyg - - This command instructs the RabbitMQ broker to ensure the user - named tonyg is an administrator. This has no - effect when the user logs in via AMQP, but can be used to permit - the user to manage users, virtual hosts and permissions when the - user logs in via some other means (for example with the - management plugin). - - - - - - clear_admin username - - - - username - The name of the user whose administrative - status is to be cleared. - - - For example: - rabbitmqctl clear_admin tonyg - - This command instructs the RabbitMQ broker to ensure the user - named tonyg is not an administrator. - - - - - - list_users - - Lists users - For example: - rabbitmqctl list_users - - This command instructs the RabbitMQ broker to list all - users. Each result row will contain the user name and - the administrator status of the user, in that order. - - - - - - - - Access control - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Permissions for users from any - alternative authorisation backend will not be visible - to rabbitmqctl. - - - - add_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to create. - - - - Creates a virtual host. - - For example: - rabbitmqctl add_vhost test - - This command instructs the RabbitMQ broker to create a new - virtual host called test. - - - - - - delete_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to delete. - - - - Deletes a virtual host. - - - Deleting a virtual host deletes all its exchanges, - queues, user mappings and associated permissions. - - For example: - rabbitmqctl delete_vhost test - - This command instructs the RabbitMQ broker to delete the - virtual host called test. - - - - - - list_vhosts - - - Lists virtual hosts. - - For example: - rabbitmqctl list_vhosts - - This command instructs the RabbitMQ broker to list all - virtual hosts. - - - - - - set_permissions -p vhostpath user conf write read - - - - vhostpath - The name of the virtual host to which to grant the user access, defaulting to /. - - - user - The name of the user to grant access to the specified virtual host. - - - conf - A regular expression matching resource names for which the user is granted configure permissions. - - - write - A regular expression matching resource names for which the user is granted write permissions. - - - read - A regular expression matching resource names for which the user is granted read permissions. - - - - Sets user permissions. - - For example: - rabbitmqctl set_permissions -p /myvhost tonyg "^tonyg-.*" ".*" ".*" - - This command instructs the RabbitMQ broker to grant the - user named tonyg access to the virtual host - called /myvhost, with configure permissions - on all resources whose names starts with "tonyg-", and - write and read permissions on all resources. - - - - - - clear_permissions -p vhostpath username - - - - vhostpath - The name of the virtual host to which to deny the user access, defaulting to /. - - - username - The name of the user to deny access to the specified virtual host. - - - - Sets user permissions. - - For example: - rabbitmqctl clear_permissions -p /myvhost tonyg - - This command instructs the RabbitMQ broker to deny the - user named tonyg access to the virtual host - called /myvhost. - - - - - - list_permissions -p vhostpath - - - - vhostpath - The name of the virtual host for which to list the users that have been granted access to it, and their permissions. Defaults to /. - - - - Lists permissions in a virtual host. - - For example: - rabbitmqctl list_permissions -p /myvhost - - This command instructs the RabbitMQ broker to list all - the users which have been granted access to the virtual - host called /myvhost, and the - permissions they have for operations on resources in - that virtual host. Note that an empty string means no - permissions granted. - - - - - - list_user_permissions -p vhostpath username - - - - username - The name of the user for which to list the permissions. - - - - Lists user permissions. - - For example: - rabbitmqctl list_user_permissions tonyg - - This command instructs the RabbitMQ broker to list all the - virtual hosts to which the user named tonyg - has been granted access, and the permissions the user has - for operations on resources in these virtual hosts. - - - - - - - - Server Status - - The server status queries interrogate the server and return a list of - results with tab-delimited columns. Some queries (list_queues, - list_exchanges, list_bindings, and - list_consumers) accept an - optional vhost parameter. This parameter, if present, must be - specified immediately after the query. - - - The list_queues, list_exchanges and list_bindings commands accept an - optional virtual host parameter for which to display results. The - default value is "/". - - - - - list_queues -p vhostpath queueinfoitem ... - - - Returns queue details. Queue details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The queueinfoitem parameter is used to indicate which queue - information items to include in the results. The column order in the - results will match the order of the parameters. - queueinfoitem can take any value from the list - that follows: - - - - name - The name of the queue with non-ASCII characters escaped as in C. - - - durable - Whether or not the queue survives server restarts. - - - auto_delete - Whether the queue will be deleted automatically when no longer used. - - - arguments - Queue arguments. - - - pid - Id of the Erlang process associated with the queue. - - - owner_pid - Id of the Erlang process representing the connection - which is the exclusive owner of the queue. Empty if the - queue is non-exclusive. - - - exclusive_consumer_pid - Id of the Erlang process representing the channel of the - exclusive consumer subscribed to this queue. Empty if - there is no exclusive consumer. - - - exclusive_consumer_tag - Consumer tag of the exclusive consumer subscribed to - this queue. Empty if there is no exclusive consumer. - - - messages_ready - Number of messages ready to be delivered to clients. - - - messages_unacknowledged - Number of messages delivered to clients but not yet acknowledged. - - - messages - Sum of ready and unacknowledged messages - (queue depth). - - - consumers - Number of consumers. - - - memory - Bytes of memory consumed by the Erlang process associated with the - queue, including stack, heap and internal structures. - - - - If no queueinfoitems are specified then queue name and depth are - displayed. - - - For example: - - rabbitmqctl list_queues -p /myvhost messages consumers - - This command displays the depth and number of consumers for each - queue of the virtual host named /myvhost. - - - - - - list_exchanges -p vhostpath exchangeinfoitem ... - - - Returns exchange details. Exchange details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The exchangeinfoitem parameter is used to indicate which - exchange information items to include in the results. The column order in the - results will match the order of the parameters. - exchangeinfoitem can take any value from the list - that follows: - - - - name - The name of the exchange with non-ASCII characters escaped as in C. - - - type - The exchange type (one of [direct, - topic, headers, - fanout]). - - - durable - Whether or not the exchange survives server restarts. - - - auto_delete - Whether the exchange will be deleted automatically when no longer used. - - - internal - Whether the exchange is internal, i.e. cannot be directly published to by a client. - - - arguments - Exchange arguments. - - - - If no exchangeinfoitems are specified then - exchange name and type are displayed. - - - For example: - - rabbitmqctl list_exchanges -p /myvhost name type - - This command displays the name and type for each - exchange of the virtual host named /myvhost. - - - - - - list_bindings -p vhostpath bindinginfoitem ... - - - Returns binding details. By default the bindings for - the / virtual host are returned. The - "-p" flag can be used to override this default. - - - The bindinginfoitem parameter is used - to indicate which binding information items to include - in the results. The column order in the results will - match the order of the parameters. - bindinginfoitem can take any value - from the list that follows: - - - - source_name - The name of the source of messages to - which the binding is attached. With non-ASCII - characters escaped as in C. - - - source_kind - The kind of the source of messages to - which the binding is attached. Currently always - queue. With non-ASCII characters escaped as in - C. - - - destination_name - The name of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - destination_kind - The kind of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - routing_key - The binding's routing key, with - non-ASCII characters escaped as in C. - - - arguments - The binding's arguments. - - - - If no bindinginfoitems are specified then - all above items are displayed. - - - For example: - - rabbitmqctl list_bindings -p /myvhost exchange_name queue_name - - This command displays the exchange name and queue name - of the bindings in the virtual host - named /myvhost. - - - - - - list_connections connectioninfoitem ... - - - Returns TCP/IP connection statistics. - - - The connectioninfoitem parameter is used to indicate - which connection information items to include in the results. The - column order in the results will match the order of the parameters. - connectioninfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - address - Server IP address. - - - port - Server port. - - - peer_address - Peer address. - - - peer_port - Peer port. - - - ssl - Boolean indicating whether the - connection is secured with SSL. - - - ssl_protocol - SSL protocol - (e.g. tlsv1) - - - ssl_key_exchange - SSL key exchange algorithm - (e.g. rsa) - - - ssl_cipher - SSL cipher algorithm - (e.g. aes_256_cbc) - - - ssl_hash - SSL hash function - (e.g. sha) - - - peer_cert_subject - The subject of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_issuer - The issuer of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_validity - The period for which the peer's SSL - certificate is valid. - - - state - Connection state (one of [starting, tuning, - opening, running, closing, closed]). - - - channels - Number of channels using the connection. - - - protocol - Version of the AMQP protocol in use (currently one of {0,9,1} or {0,8,0}). Note that if a client requests an AMQP 0-9 connection, we treat it as AMQP 0-9-1. - - - auth_mechanism - SASL authentication mechanism used, such as PLAIN. - - - user - Username associated with the connection. - - - vhost - Virtual host name with non-ASCII characters escaped as in C. - - - timeout - Connection timeout. - - - frame_max - Maximum frame size (bytes). - - - client_properties - Informational properties transmitted by the client - during connection establishment. - - - recv_oct - Octets received. - - - recv_cnt - Packets received. - - - send_oct - Octets send. - - - send_cnt - Packets sent. - - - send_pend - Send queue size. - - - - If no connectioninfoitems are specified then user, peer - address, peer port and connection state are displayed. - - - - For example: - - rabbitmqctl list_connections send_pend port - - This command displays the send queue size and server port for each - connection. - - - - - - list_channels channelinfoitem ... - - - Returns information on all current channels, the logical - containers executing most AMQP commands. This includes - channels that are part of ordinary AMQP connections, and - channels created by various plug-ins and other extensions. - - - The channelinfoitem parameter is used to - indicate which channel information items to include in the - results. The column order in the results will match the - order of the parameters. - channelinfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - connection - Id of the Erlang process associated with the connection - to which the channel belongs. - - - number - The number of the channel, which uniquely identifies it within - a connection. - - - user - Username associated with the channel. - - - vhost - Virtual host in which the channel operates. - - - transactional - True if the channel is in transactional mode, false otherwise. - - - consumer_count - Number of logical AMQP consumers retrieving messages via - the channel. - - - messages_unacknowledged - Number of messages delivered via this channel but not - yet acknowledged. - - - acks_uncommitted - Number of acknowledgements received in an as yet - uncommitted transaction. - - - prefetch_count - QoS prefetch count limit in force, 0 if unlimited. - - - client_flow_blocked - True if the client issued a - channel.flow{active=false} - command, blocking the server from delivering - messages to the channel's consumers. - - - - confirm - True if the channel is in confirm mode, false otherwise. - - - messages_unconfirmed - Number of published messages not yet - confirmed. On channels not in confirm mode, this - remains 0. - - - - If no channelinfoitems are specified then pid, - user, transactional, consumer_count, and - messages_unacknowledged are assumed. - - - - For example: - - rabbitmqctl list_channels connection messages_unacknowledged - - This command displays the connection process and count - of unacknowledged messages for each channel. - - - - - - list_consumers - - - List consumers, i.e. subscriptions to a queue's message - stream. Each line printed shows, separated by tab - characters, the name of the queue subscribed to, the id of - the channel process via which the subscription was created - and is managed, the consumer tag which uniquely identifies - the subscription within a channel, and a boolean - indicating whether acknowledgements are expected for - messages delivered to this consumer. - - - The output format for "list_consumers" is a list of rows containing, - in order, the queue name, channel process id, consumer tag, and a - boolean indicating whether acknowledgements are expected from the - consumer. - - - - - - - - diff --git a/docs/remove-namespaces.xsl b/docs/remove-namespaces.xsl deleted file mode 100644 index 7f7f3c12..00000000 --- a/docs/remove-namespaces.xsl +++ /dev/null @@ -1,18 +0,0 @@ - - - - - - - - - - - - - - - diff --git a/docs/usage.xsl b/docs/usage.xsl deleted file mode 100644 index a6cebd93..00000000 --- a/docs/usage.xsl +++ /dev/null @@ -1,78 +0,0 @@ - - - - - - - - - - -%% Generated, do not edit! --module(). --export([usage/0]). -usage() -> %QUOTE%Usage: - - - - - - - - - - - - Options: - - - - - , - - - - - - - - - - - - - Commands: - - - - - - - - - -%QUOTE%. - - - -<> must be a member of the list [, ]. - - - - - - - - - -[] -<> - - diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in deleted file mode 100644 index 014c18b0..00000000 --- a/ebin/rabbit_app.in +++ /dev/null @@ -1,45 +0,0 @@ -{application, rabbit, %% -*- erlang -*- - [{description, "RabbitMQ"}, - {id, "RabbitMQ"}, - {vsn, "%%VSN%%"}, - {modules, []}, - {registered, [rabbit_amqqueue_sup, - rabbit_log, - rabbit_node_monitor, - rabbit_router, - rabbit_sup, - rabbit_tcp_client_sup, - rabbit_direct_client_sup]}, - {applications, [kernel, stdlib, sasl, mnesia, os_mon]}, -%% we also depend on crypto, public_key and ssl but they shouldn't be -%% in here as we don't actually want to start it - {mod, {rabbit, []}}, - {env, [{tcp_listeners, [5672]}, - {ssl_listeners, []}, - {ssl_options, []}, - {vm_memory_high_watermark, 0.4}, - {msg_store_index_module, rabbit_msg_store_ets_index}, - {backing_queue_module, rabbit_variable_queue}, - {frame_max, 131072}, - {persister_max_wrap_entries, 500}, - {persister_hibernate_after, 10000}, - {msg_store_file_size_limit, 16777216}, - {queue_index_max_journal_entries, 262144}, - {default_user, <<"guest">>}, - {default_pass, <<"guest">>}, - {default_user_is_admin, true}, - {default_vhost, <<"/">>}, - {default_permissions, [<<".*">>, <<".*">>, <<".*">>]}, - {cluster_nodes, []}, - {server_properties, []}, - {collect_statistics, none}, - {auth_mechanisms, ['PLAIN', 'AMQPLAIN']}, - {auth_backends, [rabbit_auth_backend_internal]}, - {delegate_count, 16}, - {tcp_listen_options, [binary, - {packet, raw}, - {reuseaddr, true}, - {backlog, 128}, - {nodelay, true}, - {exit_on_close, false}]} - ]}]}. diff --git a/generate_app b/generate_app deleted file mode 100644 index 576b485e..00000000 --- a/generate_app +++ /dev/null @@ -1,12 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- - -main([BeamDir, TargetFile]) -> - Modules = [list_to_atom(filename:basename(F, ".beam")) || - F <- filelib:wildcard("*.beam", BeamDir)], - {ok, {application, Application, Properties}} = io:read(''), - NewProperties = lists:keyreplace(modules, 1, Properties, - {modules, Modules}), - file:write_file( - TargetFile, - io_lib:format("~p.~n", [{application, Application, NewProperties}])). diff --git a/generate_deps b/generate_deps deleted file mode 100644 index ddfca816..00000000 --- a/generate_deps +++ /dev/null @@ -1,57 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- --mode(compile). - -%% We expect the list of Erlang source and header files to arrive on -%% stdin, with the entries colon-separated. -main([TargetFile, EbinDir]) -> - ErlsAndHrls = [ string:strip(S,left) || - S <- string:tokens(io:get_line(""), ":\n")], - ErlFiles = [F || F <- ErlsAndHrls, lists:suffix(".erl", F)], - Modules = sets:from_list( - [list_to_atom(filename:basename(FileName, ".erl")) || - FileName <- ErlFiles]), - HrlFiles = [F || F <- ErlsAndHrls, lists:suffix(".hrl", F)], - IncludeDirs = lists:usort([filename:dirname(Path) || Path <- HrlFiles]), - Headers = sets:from_list(HrlFiles), - Deps = lists:foldl( - fun (Path, Deps1) -> - dict:store(Path, detect_deps(IncludeDirs, EbinDir, - Modules, Headers, Path), - Deps1) - end, dict:new(), ErlFiles), - {ok, Hdl} = file:open(TargetFile, [write, delayed_write]), - dict:fold( - fun (_Path, [], ok) -> - ok; - (Path, Dep, ok) -> - Module = filename:basename(Path, ".erl"), - ok = file:write(Hdl, [EbinDir, "/", Module, ".beam: ", - Path]), - ok = sets:fold(fun (E, ok) -> file:write(Hdl, [" ", E]) end, - ok, Dep), - file:write(Hdl, ["\n"]) - end, ok, Deps), - ok = file:write(Hdl, [TargetFile, ": ", escript:script_name(), "\n"]), - ok = file:sync(Hdl), - ok = file:close(Hdl). - -detect_deps(IncludeDirs, EbinDir, Modules, Headers, Path) -> - {ok, Forms} = epp:parse_file(Path, IncludeDirs, [{use_specs, true}]), - lists:foldl( - fun ({attribute, _LineNumber, Attribute, Behaviour}, Deps) - when Attribute =:= behaviour orelse Attribute =:= behavior -> - case sets:is_element(Behaviour, Modules) of - true -> sets:add_element( - [EbinDir, "/", atom_to_list(Behaviour), ".beam"], - Deps); - false -> Deps - end; - ({attribute, _LineNumber, file, {FileName, _LineNumber1}}, Deps) -> - case sets:is_element(FileName, Headers) of - true -> sets:add_element(FileName, Deps); - false -> Deps - end; - (_Form, Deps) -> - Deps - end, sets:new(), Forms). diff --git a/include/gm_specs.hrl b/include/gm_specs.hrl deleted file mode 100644 index ee29706e..00000000 --- a/include/gm_specs.hrl +++ /dev/null @@ -1,28 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --type(callback_result() :: 'ok' | {'stop', any()} | {'become', atom(), args()}). --type(args() :: any()). --type(members() :: [pid()]). - --spec(joined/2 :: (args(), members()) -> callback_result()). --spec(members_changed/3 :: (args(), members(), members()) -> callback_result()). --spec(handle_msg/3 :: (args(), pid(), any()) -> callback_result()). --spec(terminate/2 :: (args(), term()) -> any()). - --endif. diff --git a/include/rabbit.hrl b/include/rabbit.hrl deleted file mode 100644 index 9f483c30..00000000 --- a/include/rabbit.hrl +++ /dev/null @@ -1,101 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --record(user, {username, - is_admin, - auth_backend, %% Module this user came from - impl %% Scratch space for that module - }). - --record(internal_user, {username, password_hash, is_admin}). --record(permission, {configure, write, read}). --record(user_vhost, {username, virtual_host}). --record(user_permission, {user_vhost, permission}). - --record(vhost, {virtual_host, dummy}). - --record(connection, {protocol, user, timeout_sec, frame_max, vhost, - client_properties, capabilities}). - --record(content, - {class_id, - properties, %% either 'none', or a decoded record/tuple - properties_bin, %% either 'none', or an encoded properties binary - %% Note: at most one of properties and properties_bin can be - %% 'none' at once. - protocol, %% The protocol under which properties_bin was encoded - payload_fragments_rev %% list of binaries, in reverse order (!) - }). - --record(resource, {virtual_host, kind, name}). - --record(exchange, {name, type, durable, auto_delete, internal, arguments}). - --record(amqqueue, {name, durable, auto_delete, exclusive_owner = none, - arguments, pid}). - -%% mnesia doesn't like unary records, so we add a dummy 'value' field --record(route, {binding, value = const}). --record(reverse_route, {reverse_binding, value = const}). - --record(binding, {source, key, destination, args = []}). --record(reverse_binding, {destination, key, source, args = []}). - --record(topic_trie_edge, {trie_edge, node_id}). --record(topic_trie_binding, {trie_binding, value = const}). - --record(trie_edge, {exchange_name, node_id, word}). --record(trie_binding, {exchange_name, node_id, destination}). - --record(listener, {node, protocol, host, ip_address, port}). - --record(basic_message, {exchange_name, routing_keys = [], content, id, - is_persistent}). - --record(ssl_socket, {tcp, ssl}). --record(delivery, {mandatory, immediate, txn, sender, message, - msg_seq_no}). --record(amqp_error, {name, explanation = "", method = none}). - --record(event, {type, props, timestamp}). - --record(message_properties, {expiry, needs_confirming = false}). - -%%---------------------------------------------------------------------------- - --define(COPYRIGHT_MESSAGE, "Copyright (C) 2007-2011 VMware, Inc."). --define(INFORMATION_MESSAGE, "Licensed under the MPL. See http://www.rabbitmq.com/"). --define(PROTOCOL_VERSION, "AMQP 0-9-1 / 0-9 / 0-8"). --define(ERTS_MINIMUM, "5.6.3"). - --define(MAX_WAIT, 16#ffffffff). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(STATS_INTERVAL, 5000). - --define(ROUTING_HEADERS, [<<"CC">>, <<"BCC">>]). --define(DELETED_HEADER, <<"BCC">>). - --ifdef(debug). --define(LOGDEBUG0(F), rabbit_log:debug(F)). --define(LOGDEBUG(F,A), rabbit_log:debug(F,A)). --define(LOGMESSAGE(D,C,M,Co), rabbit_log:message(D,C,M,Co)). --else. --define(LOGDEBUG0(F), ok). --define(LOGDEBUG(F,A), ok). --define(LOGMESSAGE(D,C,M,Co), ok). --endif. diff --git a/include/rabbit_auth_backend_spec.hrl b/include/rabbit_auth_backend_spec.hrl deleted file mode 100644 index e26d44ea..00000000 --- a/include/rabbit_auth_backend_spec.hrl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). - --spec(check_user_login/2 :: (rabbit_types:username(), [term()]) -> - {'ok', rabbit_types:user()} | - {'refused', string(), [any()]} | - {'error', any()}). --spec(check_vhost_access/3 :: (rabbit_types:user(), rabbit_types:vhost(), - rabbit_access_control:vhost_permission_atom()) -> - boolean() | {'error', any()}). --spec(check_resource_access/3 :: (rabbit_types:user(), - rabbit_types:r(atom()), - rabbit_access_control:permission_atom()) -> - boolean() | {'error', any()}). --endif. diff --git a/include/rabbit_auth_mechanism_spec.hrl b/include/rabbit_auth_mechanism_spec.hrl deleted file mode 100644 index 614a3eed..00000000 --- a/include/rabbit_auth_mechanism_spec.hrl +++ /dev/null @@ -1,28 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(should_offer/1 :: (rabbit_net:socket()) -> boolean()). --spec(init/1 :: (rabbit_net:socket()) -> any()). --spec(handle_response/2 :: (binary(), any()) -> - {'ok', rabbit_types:user()} | - {'challenge', binary(), any()} | - {'protocol_error', string(), [any()]} | - {'refused', string(), [any()]}). - --endif. diff --git a/include/rabbit_backing_queue_spec.hrl b/include/rabbit_backing_queue_spec.hrl deleted file mode 100644 index b2bf6bbb..00000000 --- a/include/rabbit_backing_queue_spec.hrl +++ /dev/null @@ -1,70 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --type(fetch_result(Ack) :: - ('empty' | - %% Message, IsDelivered, AckTag, Remaining_Len - {rabbit_types:basic_message(), boolean(), Ack, non_neg_integer()})). --type(is_durable() :: boolean()). --type(attempt_recovery() :: boolean()). --type(purged_msg_count() :: non_neg_integer()). --type(confirm_required() :: boolean()). --type(message_properties_transformer() :: - fun ((rabbit_types:message_properties()) - -> rabbit_types:message_properties())). --type(async_callback() :: fun ((fun ((state()) -> state())) -> 'ok')). --type(sync_callback() :: fun ((fun ((state()) -> state())) -> 'ok' | 'error')). - --spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(init/5 :: (rabbit_amqqueue:name(), is_durable(), attempt_recovery(), - async_callback(), sync_callback()) -> state()). --spec(terminate/1 :: (state()) -> state()). --spec(delete_and_terminate/1 :: (state()) -> state()). --spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). --spec(publish/3 :: (rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) -> state()). --spec(publish_delivered/4 :: (true, rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) - -> {ack(), state()}; - (false, rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) - -> {undefined, state()}). --spec(drain_confirmed/1 :: (state()) -> {[rabbit_guid:guid()], state()}). --spec(dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> state()). --spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; - (false, state()) -> {fetch_result(undefined), state()}). --spec(ack/2 :: ([ack()], state()) -> state()). --spec(tx_publish/4 :: (rabbit_types:txn(), rabbit_types:basic_message(), - rabbit_types:message_properties(), state()) -> state()). --spec(tx_ack/3 :: (rabbit_types:txn(), [ack()], state()) -> state()). --spec(tx_rollback/2 :: (rabbit_types:txn(), state()) -> {[ack()], state()}). --spec(tx_commit/4 :: - (rabbit_types:txn(), fun (() -> any()), - message_properties_transformer(), state()) -> {[ack()], state()}). --spec(requeue/3 :: ([ack()], message_properties_transformer(), state()) - -> state()). --spec(len/1 :: (state()) -> non_neg_integer()). --spec(is_empty/1 :: (state()) -> boolean()). --spec(set_ram_duration_target/2 :: - (('undefined' | 'infinity' | number()), state()) -> state()). --spec(ram_duration/1 :: (state()) -> {number(), state()}). --spec(needs_idle_timeout/1 :: (state()) -> boolean()). --spec(idle_timeout/1 :: (state()) -> state()). --spec(handle_pre_hibernate/1 :: (state()) -> state()). --spec(status/1 :: (state()) -> [{atom(), any()}]). diff --git a/include/rabbit_exchange_type_spec.hrl b/include/rabbit_exchange_type_spec.hrl deleted file mode 100644 index 45c475d8..00000000 --- a/include/rabbit_exchange_type_spec.hrl +++ /dev/null @@ -1,36 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(route/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> rabbit_router:match_result()). --spec(validate/1 :: (rabbit_types:exchange()) -> 'ok'). --spec(create/2 :: (boolean(), rabbit_types:exchange()) -> 'ok'). --spec(recover/2 :: (rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(delete/3 :: (boolean(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(add_binding/3 :: (boolean(), rabbit_types:exchange(), - rabbit_types:binding()) -> 'ok'). --spec(remove_bindings/3 :: (boolean(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). - --endif. diff --git a/include/rabbit_msg_store.hrl b/include/rabbit_msg_store.hrl deleted file mode 100644 index e9150a97..00000000 --- a/include/rabbit_msg_store.hrl +++ /dev/null @@ -1,25 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit.hrl"). - --ifdef(use_specs). - --type(msg() :: any()). - --endif. - --record(msg_location, {msg_id, ref_count, file, offset, total_size}). diff --git a/include/rabbit_msg_store_index.hrl b/include/rabbit_msg_store_index.hrl deleted file mode 100644 index 2ae5b000..00000000 --- a/include/rabbit_msg_store_index.hrl +++ /dev/null @@ -1,45 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit_msg_store.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(dir() :: any()). --type(index_state() :: any()). --type(keyvalue() :: any()). --type(fieldpos() :: non_neg_integer()). --type(fieldvalue() :: any()). - --spec(new/1 :: (dir()) -> index_state()). --spec(recover/1 :: (dir()) -> rabbit_types:ok_or_error2(index_state(), any())). --spec(lookup/2 :: - (rabbit_types:msg_id(), index_state()) -> ('not_found' | keyvalue())). --spec(insert/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update_fields/3 :: (rabbit_types:msg_id(), ({fieldpos(), fieldvalue()} | - [{fieldpos(), fieldvalue()}]), - index_state()) -> 'ok'). --spec(delete/2 :: (rabbit_types:msg_id(), index_state()) -> 'ok'). --spec(delete_object/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(delete_by_file/2 :: (fieldvalue(), index_state()) -> 'ok'). --spec(terminate/1 :: (index_state()) -> any()). - --endif. - -%%---------------------------------------------------------------------------- diff --git a/packaging/RPMS/Fedora/Makefile b/packaging/RPMS/Fedora/Makefile deleted file mode 100644 index c67d8fd6..00000000 --- a/packaging/RPMS/Fedora/Makefile +++ /dev/null @@ -1,49 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -TOP_DIR=$(shell pwd) -#Under debian we do not want to check build dependencies, since that -#only checks build-dependencies using rpms, not debs -DEFINES=--define '_topdir $(TOP_DIR)' --define '_tmppath $(TOP_DIR)/tmp' --define '_sysconfdir /etc' --define '_localstatedir /var' - -ifndef RPM_OS -RPM_OS=fedora -endif - -ifeq "$(RPM_OS)" "suse" -REQUIRES=/sbin/chkconfig /sbin/service -OS_DEFINES=--define '_initrddir /etc/init.d' --define 'dist .suse' -else -REQUIRES=chkconfig initscripts -OS_DEFINES=--define '_initrddir /etc/rc.d/init.d' -endif - -rpms: clean server - -prepare: - mkdir -p BUILD SOURCES SPECS SRPMS RPMS tmp - cp $(TARBALL_DIR)/$(TARBALL) SOURCES - cp rabbitmq-server.spec SPECS - sed -i 's|%%VERSION%%|$(VERSION)|;s|%%REQUIRES%%|$(REQUIRES)|' \ - SPECS/rabbitmq-server.spec - - cp ${COMMON_DIR}/* SOURCES/ - sed -i \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=/var/lock/subsys/$$NAME|' \ - SOURCES/rabbitmq-server.init -ifeq "$(RPM_OS)" "fedora" -# Fedora says that only vital services should have Default-Start - sed -i -e '/^# Default-Start:/d;/^# Default-Stop:/d' \ - SOURCES/rabbitmq-server.init -endif - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - SOURCES/rabbitmq-script-wrapper - cp rabbitmq-server.logrotate SOURCES/rabbitmq-server.logrotate - -server: prepare - rpmbuild -ba --nodeps SPECS/rabbitmq-server.spec $(DEFINES) $(OS_DEFINES) - -clean: - rm -rf SOURCES SPECS RPMS SRPMS BUILD tmp diff --git a/packaging/RPMS/Fedora/rabbitmq-server.logrotate b/packaging/RPMS/Fedora/rabbitmq-server.logrotate deleted file mode 100644 index 6b657614..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /sbin/service rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec deleted file mode 100644 index 45af770a..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ /dev/null @@ -1,199 +0,0 @@ -%define debug_package %{nil} - -Name: rabbitmq-server -Version: %%VERSION%% -Release: 1%{?dist} -License: MPLv1.1 -Group: Development/Libraries -Source: http://www.rabbitmq.com/releases/rabbitmq-server/v%{version}/%{name}-%{version}.tar.gz -Source1: rabbitmq-server.init -Source2: rabbitmq-script-wrapper -Source3: rabbitmq-server.logrotate -Source4: rabbitmq-server.ocf -URL: http://www.rabbitmq.com/ -BuildArch: noarch -BuildRequires: erlang >= R12B-3, python-simplejson, xmlto, libxslt -Requires: erlang >= R12B-3, logrotate -BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-%{_arch}-root -Summary: The RabbitMQ server -Requires(post): %%REQUIRES%% -Requires(pre): %%REQUIRES%% - -%description -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -# We want to install into /usr/lib, even on 64-bit platforms -%define _rabbit_libdir %{_exec_prefix}/lib/rabbitmq -%define _rabbit_erllibdir %{_rabbit_libdir}/lib/rabbitmq_server-%{version} -%define _rabbit_wrapper %{_builddir}/`basename %{S:2}` -%define _rabbit_server_ocf %{_builddir}/`basename %{S:4}` -%define _plugins_state_dir %{_localstatedir}/lib/rabbitmq/plugins - -%define _maindir %{buildroot}%{_rabbit_erllibdir} - -%prep -%setup -q - -%build -cp %{S:2} %{_rabbit_wrapper} -cp %{S:4} %{_rabbit_server_ocf} -make %{?_smp_mflags} - -%install -rm -rf %{buildroot} - -make install TARGET_DIR=%{_maindir} \ - SBIN_DIR=%{buildroot}%{_rabbit_libdir}/bin \ - MAN_DIR=%{buildroot}%{_mandir} - -mkdir -p %{buildroot}%{_localstatedir}/lib/rabbitmq/mnesia -mkdir -p %{buildroot}%{_localstatedir}/log/rabbitmq - -#Copy all necessary lib files etc. -install -p -D -m 0755 %{S:1} %{buildroot}%{_initrddir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmqctl -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_server_ocf} %{buildroot}%{_exec_prefix}/lib/ocf/resource.d/rabbitmq/rabbitmq-server - -install -p -D -m 0644 %{S:3} %{buildroot}%{_sysconfdir}/logrotate.d/rabbitmq-server - -mkdir -p %{buildroot}%{_sysconfdir}/rabbitmq - -rm %{_maindir}/LICENSE %{_maindir}/LICENSE-MPL-RabbitMQ %{_maindir}/INSTALL - -#Build the list of files -echo '%defattr(-,root,root, -)' >%{_builddir}/%{name}.files -find %{buildroot} -path %{buildroot}%{_sysconfdir} -prune -o '!' -type d -printf "/%%P\n" >>%{_builddir}/%{name}.files - -%pre - -if [ $1 -gt 1 ]; then - # Upgrade - stop previous instance of rabbitmq-server init.d script - /sbin/service rabbitmq-server stop -fi - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - groupadd -r rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - useradd -r -g rabbitmq -d %{_localstatedir}/lib/rabbitmq rabbitmq \ - -c "RabbitMQ messaging server" -fi - -%post -/sbin/chkconfig --add %{name} -if [ -f %{_sysconfdir}/rabbitmq/rabbitmq.conf ] && [ ! -f %{_sysconfdir}/rabbitmq/rabbitmq-env.conf ]; then - mv %{_sysconfdir}/rabbitmq/rabbitmq.conf %{_sysconfdir}/rabbitmq/rabbitmq-env.conf -fi - -%preun -if [ $1 = 0 ]; then - #Complete uninstall - /sbin/service rabbitmq-server stop - /sbin/chkconfig --del rabbitmq-server - - # We do not remove /var/log and /var/lib directories - # Leave rabbitmq user and group -fi - -# Clean out plugin activation state, both on uninstall and upgrade -rm -rf %{_plugins_state_dir} -for ext in rel script boot ; do - rm -f %{_rabbit_erllibdir}/ebin/rabbit.$ext -done - -%files -f ../%{name}.files -%defattr(-,root,root,-) -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/lib/rabbitmq -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/log/rabbitmq -%dir %{_sysconfdir}/rabbitmq -%{_initrddir}/rabbitmq-server -%config(noreplace) %{_sysconfdir}/logrotate.d/rabbitmq-server -%doc LICENSE LICENSE-MPL-RabbitMQ - -%clean -rm -rf %{buildroot} - -%changelog -* Tue Mar 22 2011 Alexandru Scvortov 2.4.0-1 -- New Upstream Release - -* Thu Feb 3 2011 simon@rabbitmq.com 2.3.1-1 -- New Upstream Release - -* Tue Feb 1 2011 simon@rabbitmq.com 2.3.0-1 -- New Upstream Release - -* Mon Nov 29 2010 rob@rabbitmq.com 2.2.0-1 -- New Upstream Release - -* Tue Oct 19 2010 vlad@rabbitmq.com 2.1.1-1 -- New Upstream Release - -* Tue Sep 14 2010 marek@rabbitmq.com 2.1.0-1 -- New Upstream Release - -* Mon Aug 23 2010 mikeb@rabbitmq.com 2.0.0-1 -- New Upstream Release - -* Wed Jul 14 2010 Emile Joubert 1.8.1-1 -- New Upstream Release - -* Tue Jun 15 2010 Matthew Sackman 1.8.0-1 -- New Upstream Release - -* Mon Feb 15 2010 Matthew Sackman 1.7.2-1 -- New Upstream Release - -* Fri Jan 22 2010 Matthew Sackman 1.7.1-1 -- New Upstream Release - -* Mon Oct 5 2009 David Wragg 1.7.0-1 -- New upstream release - -* Wed Jun 17 2009 Matthias Radestock 1.6.0-1 -- New upstream release - -* Tue May 19 2009 Matthias Radestock 1.5.5-1 -- Maintenance release for the 1.5.x series - -* Mon Apr 6 2009 Matthias Radestock 1.5.4-1 -- Maintenance release for the 1.5.x series - -* Tue Feb 24 2009 Tony Garnock-Jones 1.5.3-1 -- Maintenance release for the 1.5.x series - -* Mon Feb 23 2009 Tony Garnock-Jones 1.5.2-1 -- Maintenance release for the 1.5.x series - -* Mon Jan 19 2009 Ben Hood <0x6e6562@gmail.com> 1.5.1-1 -- Maintenance release for the 1.5.x series - -* Wed Dec 17 2008 Matthias Radestock 1.5.0-1 -- New upstream release - -* Thu Jul 24 2008 Tony Garnock-Jones 1.4.0-1 -- New upstream release - -* Mon Mar 3 2008 Adrien Pierard 1.3.0-1 -- New upstream release - -* Wed Sep 26 2007 Simon MacMullen 1.2.0-1 -- New upstream release - -* Wed Aug 29 2007 Simon MacMullen 1.1.1-1 -- New upstream release - -* Mon Jul 30 2007 Simon MacMullen 1.1.0-1.alpha -- New upstream release - -* Tue Jun 12 2007 Hubert Plociniczak 1.0.0-1.20070607 -- Building from source tarball, added starting script, stopping - -* Mon May 21 2007 Hubert Plociniczak 1.0.0-1.alpha -- Initial build of server library of RabbitMQ package diff --git a/packaging/common/rabbitmq-script-wrapper b/packaging/common/rabbitmq-script-wrapper deleted file mode 100644 index 23d2a06c..00000000 --- a/packaging/common/rabbitmq-script-wrapper +++ /dev/null @@ -1,42 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Escape spaces and quotes, because shell is revolting. -for arg in "$@" ; do - # Escape quotes in parameters, so that they're passed through cleanly. - arg=$(sed -e 's/"/\\"/g' <<-END - $arg - END - ) - CMDLINE="${CMDLINE} \"${arg}\"" -done - -cd /var/lib/rabbitmq - -SCRIPT=`basename $0` - -if [ `id -u` = 0 ] ; then - @SU_RABBITMQ_SH_C@ "/usr/lib/rabbitmq/bin/${SCRIPT} ${CMDLINE}" -elif [ `id -u` = `id -u rabbitmq` ] ; then - /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -else - /usr/lib/rabbitmq/bin/${SCRIPT} - echo - echo "Only root or rabbitmq should run ${SCRIPT}" - echo - exit 1 -fi diff --git a/packaging/common/rabbitmq-server.init b/packaging/common/rabbitmq-server.init deleted file mode 100644 index f3bdc3d2..00000000 --- a/packaging/common/rabbitmq-server.init +++ /dev/null @@ -1,153 +0,0 @@ -#!/bin/sh -# -# rabbitmq-server RabbitMQ broker -# -# chkconfig: - 80 05 -# description: Enable AMQP service provided by RabbitMQ -# - -### BEGIN INIT INFO -# Provides: rabbitmq-server -# Required-Start: $remote_fs $network -# Required-Stop: $remote_fs $network -# Default-Start: 3 4 5 -# Default-Stop: 0 1 2 6 -# Description: RabbitMQ broker -# Short-Description: Enable AMQP service provided by RabbitMQ broker -### END INIT INFO - -PATH=/sbin:/usr/sbin:/bin:/usr/bin -NAME=rabbitmq-server -DAEMON=/usr/sbin/${NAME} -CONTROL=/usr/sbin/rabbitmqctl -DESC=rabbitmq-server -USER=rabbitmq -ROTATE_SUFFIX= -INIT_LOG_DIR=/var/log/rabbitmq - -LOCK_FILE= # This is filled in when building packages - -test -x $DAEMON || exit 0 - -RETVAL=0 -set -e - -start_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - echo RabbitMQ is currently running - else - RETVAL=0 - set +e - setsid sh -c "$DAEMON > ${INIT_LOG_DIR}/startup_log \ - 2> ${INIT_LOG_DIR}/startup_err" & - $CONTROL wait >/dev/null 2>&1 - RETVAL=$? - set -e - case "$RETVAL" in - 0) - echo SUCCESS - if [ -n "$LOCK_FILE" ] ; then - touch $LOCK_FILE - fi - ;; - *) - echo FAILED - check ${INIT_LOG_DIR}/startup_\{log, _err\} - RETVAL=1 - ;; - esac - fi -} - -stop_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - set +e - $CONTROL stop > ${INIT_LOG_DIR}/shutdown_log 2> ${INIT_LOG_DIR}/shutdown_err - RETVAL=$? - set -e - if [ $RETVAL = 0 ] ; then - if [ -n "$LOCK_FILE" ] ; then - rm -f $LOCK_FILE - fi - else - echo FAILED - check ${INIT_LOG_DIR}/shutdown_log, _err - fi - else - echo RabbitMQ is not running - RETVAL=0 - fi -} - -status_rabbitmq() { - set +e - if [ "$1" != "quiet" ] ; then - $CONTROL status 2>&1 - else - $CONTROL status > /dev/null 2>&1 - fi - if [ $? != 0 ] ; then - RETVAL=3 - fi - set -e -} - -rotate_logs_rabbitmq() { - set +e - $DAEMON rotate_logs ${ROTATE_SUFFIX} - if [ $? != 0 ] ; then - RETVAL=1 - fi - set -e -} - -restart_running_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - restart_rabbitmq - else - echo RabbitMQ is not runnning - RETVAL=0 - fi -} - -restart_rabbitmq() { - stop_rabbitmq - start_rabbitmq -} - -case "$1" in - start) - echo -n "Starting $DESC: " - start_rabbitmq - echo "$NAME." - ;; - stop) - echo -n "Stopping $DESC: " - stop_rabbitmq - echo "$NAME." - ;; - status) - status_rabbitmq - ;; - rotate-logs) - echo -n "Rotating log files for $DESC: " - rotate_logs_rabbitmq - ;; - force-reload|reload|restart) - echo -n "Restarting $DESC: " - restart_rabbitmq - echo "$NAME." - ;; - try-restart) - echo -n "Restarting $DESC: " - restart_running_rabbitmq - echo "$NAME." - ;; - *) - echo "Usage: $0 {start|stop|status|rotate-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 - RETVAL=1 - ;; -esac - -exit $RETVAL diff --git a/packaging/common/rabbitmq-server.ocf b/packaging/common/rabbitmq-server.ocf deleted file mode 100755 index d58c48ed..00000000 --- a/packaging/common/rabbitmq-server.ocf +++ /dev/null @@ -1,341 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -## -## OCF Resource Agent compliant rabbitmq-server resource script. -## - -## OCF instance parameters -## OCF_RESKEY_server -## OCF_RESKEY_ctl -## OCF_RESKEY_nodename -## OCF_RESKEY_ip -## OCF_RESKEY_port -## OCF_RESKEY_config_file -## OCF_RESKEY_log_base -## OCF_RESKEY_mnesia_base -## OCF_RESKEY_server_start_args - -####################################################################### -# Initialization: - -: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/heartbeat} -. ${OCF_FUNCTIONS_DIR}/.ocf-shellfuncs - -####################################################################### - -OCF_RESKEY_server_default="/usr/sbin/rabbitmq-server" -OCF_RESKEY_ctl_default="/usr/sbin/rabbitmqctl" -OCF_RESKEY_nodename_default="rabbit@localhost" -OCF_RESKEY_log_base_default="/var/log/rabbitmq" -: ${OCF_RESKEY_server=${OCF_RESKEY_server_default}} -: ${OCF_RESKEY_ctl=${OCF_RESKEY_ctl_default}} -: ${OCF_RESKEY_nodename=${OCF_RESKEY_nodename_default}} -: ${OCF_RESKEY_log_base=${OCF_RESKEY_log_base_default}} - -meta_data() { - cat < - - -1.0 - - -Resource agent for RabbitMQ-server - - -Resource agent for RabbitMQ-server - - - - -The path to the rabbitmq-server script - -Path to rabbitmq-server - - - - - -The path to the rabbitmqctl script - -Path to rabbitmqctl - - - - - -The node name for rabbitmq-server - -Node name - - - - - -The IP address for rabbitmq-server to listen on - -IP Address - - - - - -The IP Port for rabbitmq-server to listen on - -IP Port - - - - - -Location of the config file (without the .config suffix) - -Config file path (without the .config suffix) - - - - - -Location of the directory under which logs will be created - -Log base path - - - - - -Location of the directory under which mnesia will store data - -Mnesia base path - - - - - -Additional arguments provided to the server on startup - -Server start arguments - - - - - - - - - - - - - - -END -} - -rabbit_usage() { - cat < /dev/null 2> /dev/null - rc=$? - case "$rc" in - 0) - ocf_log debug "RabbitMQ server is running normally" - return $OCF_SUCCESS - ;; - 2) - ocf_log debug "RabbitMQ server is not running" - return $OCF_NOT_RUNNING - ;; - *) - ocf_log err "Unexpected return from rabbitmqctl $NODENAME_ARG $action: $rc" - exit $OCF_ERR_GENERIC - esac -} - -rabbit_start() { - local rc - - if rabbit_status; then - ocf_log info "Resource already running." - return $OCF_SUCCESS - fi - - export_vars - - setsid sh -c "$RABBITMQ_SERVER > ${RABBITMQ_LOG_BASE}/startup_log 2> ${RABBITMQ_LOG_BASE}/startup_err" & - - # Wait for the server to come up. - # Let the CRM/LRM time us out if required - rabbit_wait - rc=$? - if [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server start failed: $rc" - exit $OCF_ERR_GENERIC - fi - - return $OCF_SUCCESS -} - -rabbit_stop() { - local rc - - if ! rabbit_status; then - ocf_log info "Resource not running." - return $OCF_SUCCESS - fi - - $RABBITMQ_CTL stop - rc=$? - - if [ "$rc" != 0 ]; then - ocf_log err "rabbitmq-server stop command failed: $RABBITMQ_CTL stop, $rc" - return $rc - fi - - # Spin waiting for the server to shut down. - # Let the CRM/LRM time us out if required - stop_wait=1 - while [ $stop_wait = 1 ]; do - rabbit_status - rc=$? - if [ "$rc" = $OCF_NOT_RUNNING ]; then - stop_wait=0 - break - elif [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server stop failed: $rc" - exit $OCF_ERR_GENERIC - fi - sleep 1 - done - - return $OCF_SUCCESS -} - -rabbit_monitor() { - rabbit_status - return $? -} - -case $__OCF_ACTION in - meta-data) - meta_data - exit $OCF_SUCCESS - ;; - usage|help) - rabbit_usage - exit $OCF_SUCCESS - ;; -esac - -if ocf_is_probe; then - rabbit_validate_partial -else - rabbit_validate_full -fi - -case $__OCF_ACTION in - start) - rabbit_start - ;; - stop) - rabbit_stop - ;; - status|monitor) - rabbit_monitor - ;; - validate-all) - exit $OCF_SUCCESS - ;; - *) - rabbit_usage - exit $OCF_ERR_UNIMPLEMENTED - ;; -esac - -exit $? diff --git a/packaging/debs/Debian/Makefile b/packaging/debs/Debian/Makefile deleted file mode 100644 index 31979a8e..00000000 --- a/packaging/debs/Debian/Makefile +++ /dev/null @@ -1,45 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -DEBIAN_ORIG_TARBALL=$(shell echo $(TARBALL) | sed -e 's:\(.*\)-\(.*\)\(\.tar\.gz\):\1_\2\.orig\3:g') -UNPACKED_DIR=rabbitmq-server-$(VERSION) -PACKAGENAME=rabbitmq-server -SIGNING_KEY_ID=056E8E56 - -ifneq "$(UNOFFICIAL_RELEASE)" "" - SIGNING=-us -uc -else - SIGNING=-k$(SIGNING_KEY_ID) -endif - -all: - @echo 'Please choose a target from the Makefile.' - -package: clean - cp $(TARBALL_DIR)/$(TARBALL) $(DEBIAN_ORIG_TARBALL) - tar -zxvf $(DEBIAN_ORIG_TARBALL) - cp -r debian $(UNPACKED_DIR) - cp $(COMMON_DIR)/* $(UNPACKED_DIR)/debian/ -# Debian and descendants differ from most other distros in that -# runlevel 2 should start network services. - sed -i \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=|' \ - -e 's|^\(# Default-Start:\).*$$|\1 2 3 4 5|' \ - -e 's|^\(# Default-Stop:\).*$$|\1 0 1 6|' \ - $(UNPACKED_DIR)/debian/rabbitmq-server.init - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - $(UNPACKED_DIR)/debian/rabbitmq-script-wrapper - chmod a+x $(UNPACKED_DIR)/debian/rules - UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) - cd $(UNPACKED_DIR); GNUPGHOME=$(GNUPG_PATH)/.gnupg dpkg-buildpackage -rfakeroot $(SIGNING) - rm -rf $(UNPACKED_DIR) - -clean: - rm -rf $(UNPACKED_DIR) - rm -f $(PACKAGENAME)_*.tar.gz - rm -f $(PACKAGENAME)_*.diff.gz - rm -f $(PACKAGENAME)_*.dsc - rm -f $(PACKAGENAME)_*_*.changes - rm -f $(PACKAGENAME)_*_*.deb diff --git a/packaging/debs/Debian/check-changelog.sh b/packaging/debs/Debian/check-changelog.sh deleted file mode 100755 index ff25e648..00000000 --- a/packaging/debs/Debian/check-changelog.sh +++ /dev/null @@ -1,29 +0,0 @@ -#!/bin/sh - -PACKAGE_NAME=$1 -cd $2 - -CHANGELOG_VERSION=$(dpkg-parsechangelog | sed -n 's/^Version: \(.*\)-[^-]*$/\1/p') - -if [ "${CHANGELOG_VERSION}" != "${VERSION}" ]; then - if [ -n "${UNOFFICIAL_RELEASE}" ]; then - echo "${PACKAGE_NAME} (${VERSION}-1) unstable; urgency=low" > debian/changelog.tmp - echo >> debian/changelog.tmp - echo " * Unofficial release" >> debian/changelog.tmp - echo >> debian/changelog.tmp - echo " -- Nobody $(date -R)" >> debian/changelog.tmp - echo >> debian/changelog.tmp - cat debian/changelog >> debian/changelog.tmp - mv -f debian/changelog.tmp debian/changelog - - exit 0 - else - echo - echo There is no entry in debian/changelog for version ${VERSION}! - echo Please create a changelog entry, or set the variable - echo UNOFFICIAL_RELEASE to automatically create one. - echo - - exit 1 - fi -fi diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog deleted file mode 100644 index 2ca5074f..00000000 --- a/packaging/debs/Debian/debian/changelog +++ /dev/null @@ -1,162 +0,0 @@ -rabbitmq-server (2.4.0-1) lucid; urgency=low - - * New Upstream Release - - -- Alexandru Scvortov Tue, 22 Mar 2011 17:34:31 +0000 - -rabbitmq-server (2.3.1-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Thu, 03 Feb 2011 12:43:56 +0000 - -rabbitmq-server (2.3.0-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Tue, 01 Feb 2011 12:52:16 +0000 - -rabbitmq-server (2.2.0-1) lucid; urgency=low - - * New Upstream Release - - -- Rob Harrop Mon, 29 Nov 2010 12:24:48 +0000 - -rabbitmq-server (2.1.1-1) lucid; urgency=low - - * New Upstream Release - - -- Vlad Alexandru Ionescu Tue, 19 Oct 2010 17:20:10 +0100 - -rabbitmq-server (2.1.0-1) lucid; urgency=low - - * New Upstream Release - - -- Marek Majkowski Tue, 14 Sep 2010 14:20:17 +0100 - -rabbitmq-server (2.0.0-1) karmic; urgency=low - - * New Upstream Release - - -- Michael Bridgen Mon, 23 Aug 2010 14:55:39 +0100 - -rabbitmq-server (1.8.1-1) lucid; urgency=low - - * New Upstream Release - - -- Emile Joubert Wed, 14 Jul 2010 15:05:24 +0100 - -rabbitmq-server (1.8.0-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Tue, 15 Jun 2010 12:48:48 +0100 - -rabbitmq-server (1.7.2-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Mon, 15 Feb 2010 15:54:47 +0000 - -rabbitmq-server (1.7.1-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Fri, 22 Jan 2010 14:14:29 +0000 - -rabbitmq-server (1.7.0-1) intrepid; urgency=low - - * New Upstream Release - - -- David Wragg Mon, 05 Oct 2009 13:44:41 +0100 - -rabbitmq-server (1.6.0-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 16 Jun 2009 15:02:58 +0100 - -rabbitmq-server (1.5.5-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 19 May 2009 09:57:54 +0100 - -rabbitmq-server (1.5.4-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Mon, 06 Apr 2009 09:19:32 +0100 - -rabbitmq-server (1.5.3-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Tue, 24 Feb 2009 18:23:33 +0000 - -rabbitmq-server (1.5.2-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Mon, 23 Feb 2009 16:03:38 +0000 - -rabbitmq-server (1.5.1-1) hardy; urgency=low - - * New Upstream Release - - -- Simon MacMullen Mon, 19 Jan 2009 15:46:13 +0000 - -rabbitmq-server (1.5.0-1) testing; urgency=low - - * New Upstream Release - - -- Matthias Radestock Wed, 17 Dec 2008 18:23:47 +0000 - -rabbitmq-server (1.4.0-1) testing; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Thu, 24 Jul 2008 13:21:48 +0100 - -rabbitmq-server (1.3.0-1) testing; urgency=low - - * New Upstream Release - - -- Adrien Pierard Mon, 03 Mar 2008 15:34:38 +0000 - -rabbitmq-server (1.2.0-2) testing; urgency=low - - * Fixed rabbitmqctl wrapper script - - -- Simon MacMullen Fri, 05 Oct 2007 11:55:00 +0100 - -rabbitmq-server (1.2.0-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 26 Sep 2007 11:49:26 +0100 - -rabbitmq-server (1.1.1-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 29 Aug 2007 12:03:15 +0100 - -rabbitmq-server (1.1.0-alpha-2) testing; urgency=low - - * Fixed erlang-nox dependency - - -- Simon MacMullen Thu, 02 Aug 2007 11:27:13 +0100 - -rabbitmq-server (1.1.0-alpha-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Fri, 20 Jul 2007 18:17:33 +0100 - -rabbitmq-server (1.0.0-alpha-1) unstable; urgency=low - - * Initial release - - -- Tony Garnock-Jones Wed, 31 Jan 2007 19:06:33 +0000 - diff --git a/packaging/debs/Debian/debian/compat b/packaging/debs/Debian/debian/compat deleted file mode 100644 index 7ed6ff82..00000000 --- a/packaging/debs/Debian/debian/compat +++ /dev/null @@ -1 +0,0 @@ -5 diff --git a/packaging/debs/Debian/debian/control b/packaging/debs/Debian/debian/control deleted file mode 100644 index 45f5c5c4..00000000 --- a/packaging/debs/Debian/debian/control +++ /dev/null @@ -1,15 +0,0 @@ -Source: rabbitmq-server -Section: net -Priority: extra -Maintainer: RabbitMQ Team -Build-Depends: cdbs, debhelper (>= 5), erlang-dev, python-simplejson, xmlto, xsltproc -Standards-Version: 3.8.0 - -Package: rabbitmq-server -Architecture: all -Depends: erlang-nox (>= 1:12.b.3), adduser, logrotate, ${misc:Depends} -Description: An AMQP server written in Erlang - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. -Homepage: http://www.rabbitmq.com/ diff --git a/packaging/debs/Debian/debian/copyright b/packaging/debs/Debian/debian/copyright deleted file mode 100755 index 7206bb9b..00000000 --- a/packaging/debs/Debian/debian/copyright +++ /dev/null @@ -1,502 +0,0 @@ -This package was debianized by Tony Garnock-Jones on -Wed, 3 Jan 2007 15:43:44 +0000. - -It was downloaded from http://www.rabbitmq.com/ - -The files codegen/amqp-rabbitmq-0.8.json and -codegen/amqp-rabbitmq-0.9.1.json are covered by the following terms: - - "Copyright (C) 2008-2011 VMware, Inc. - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this file (the Software), to deal in the - Software without restriction, including without limitation the - rights to use, copy, modify, merge, publish, distribute, - sublicense, and/or sell copies of the Software, and to permit - persons to whom the Software is furnished to do so, subject to - the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - OTHER DEALINGS IN THE SOFTWARE." - -The rest of this package is licensed under the Mozilla Public License 1.1 -Authors and Copyright are as described below: - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved. - - - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] - - - - - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. - -The Debian packaging is (C) 2007-2011, VMware, Inc. and is licensed -under the MPL 1.1, see above. diff --git a/packaging/debs/Debian/debian/dirs b/packaging/debs/Debian/debian/dirs deleted file mode 100644 index 625b7d41..00000000 --- a/packaging/debs/Debian/debian/dirs +++ /dev/null @@ -1,9 +0,0 @@ -usr/lib/rabbitmq/bin -usr/lib/erlang/lib -usr/sbin -usr/share/man -var/lib/rabbitmq/mnesia -var/log/rabbitmq -etc/logrotate.d -etc/rabbitmq - diff --git a/packaging/debs/Debian/debian/postinst b/packaging/debs/Debian/debian/postinst deleted file mode 100644 index b11340ef..00000000 --- a/packaging/debs/Debian/debian/postinst +++ /dev/null @@ -1,60 +0,0 @@ -#!/bin/sh -# postinst script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `configure' -# * `abort-upgrade' -# * `abort-remove' `in-favour' -# -# * `abort-remove' -# * `abort-deconfigure' `in-favour' -# `removing' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - addgroup --system rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - adduser --system --ingroup rabbitmq --home /var/lib/rabbitmq \ - --no-create-home --gecos "RabbitMQ messaging server" \ - --disabled-login rabbitmq -fi - -chown -R rabbitmq:rabbitmq /var/lib/rabbitmq -chown -R rabbitmq:rabbitmq /var/log/rabbitmq - -case "$1" in - configure) - if [ -f /etc/rabbitmq/rabbitmq.conf ] && \ - [ ! -f /etc/rabbitmq/rabbitmq-env.conf ]; then - mv /etc/rabbitmq/rabbitmq.conf /etc/rabbitmq/rabbitmq-env.conf - fi - ;; - - abort-upgrade|abort-remove|abort-deconfigure) - ;; - - *) - echo "postinst called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/postrm.in b/packaging/debs/Debian/debian/postrm.in deleted file mode 100644 index c4aeeebe..00000000 --- a/packaging/debs/Debian/debian/postrm.in +++ /dev/null @@ -1,73 +0,0 @@ -#!/bin/sh -# postrm script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `remove' -# * `purge' -# * `upgrade' -# * `failed-upgrade' -# * `abort-install' -# * `abort-install' -# * `abort-upgrade' -# * `disappear' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - -remove_plugin_traces() { - # Remove traces of plugins - rm -rf /var/lib/rabbitmq/plugins-scratch -} - -case "$1" in - purge) - rm -f /etc/default/rabbitmq - if [ -d /var/lib/rabbitmq ]; then - rm -r /var/lib/rabbitmq - fi - if [ -d /var/log/rabbitmq ]; then - rm -r /var/log/rabbitmq - fi - if [ -d /var/run/rabbitmq ]; then - rm -r /var/run/rabbitmq - fi - if [ -d /etc/rabbitmq ]; then - rm -r /etc/rabbitmq - fi - remove_plugin_traces - if getent passwd rabbitmq >/dev/null; then - # Stop epmd if run by the rabbitmq user - pkill -u rabbitmq epmd || : - - deluser rabbitmq - fi - if getent group rabbitmq >/dev/null; then - delgroup rabbitmq - fi - ;; - - remove|upgrade) - remove_plugin_traces - ;; - - failed-upgrade|abort-install|abort-upgrade|disappear) - ;; - - *) - echo "postrm called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/rabbitmq-server.logrotate b/packaging/debs/Debian/debian/rabbitmq-server.logrotate deleted file mode 100644 index c786df77..00000000 --- a/packaging/debs/Debian/debian/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /etc/init.d/rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/debs/Debian/debian/rules b/packaging/debs/Debian/debian/rules deleted file mode 100644 index a785b292..00000000 --- a/packaging/debs/Debian/debian/rules +++ /dev/null @@ -1,21 +0,0 @@ -#!/usr/bin/make -f - -include /usr/share/cdbs/1/rules/debhelper.mk -include /usr/share/cdbs/1/class/makefile.mk - -RABBIT_LIB=$(DEB_DESTDIR)usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)/ -RABBIT_BIN=$(DEB_DESTDIR)usr/lib/rabbitmq/bin/ - -DEB_MAKE_INSTALL_TARGET := install TARGET_DIR=$(RABBIT_LIB) SBIN_DIR=$(RABBIT_BIN) MAN_DIR=$(DEB_DESTDIR)usr/share/man/ -DEB_MAKE_CLEAN_TARGET:= distclean - -DOCDIR=$(DEB_DESTDIR)usr/share/doc/rabbitmq-server/ - -install/rabbitmq-server:: - mkdir -p $(DOCDIR) - rm $(RABBIT_LIB)LICENSE* $(RABBIT_LIB)INSTALL* - for script in rabbitmqctl rabbitmq-server; do \ - install -p -D -m 0755 debian/rabbitmq-script-wrapper $(DEB_DESTDIR)usr/sbin/$$script; \ - done - sed -e 's|@RABBIT_LIB@|/usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)|g' debian/postrm - install -p -D -m 0755 debian/rabbitmq-server.ocf $(DEB_DESTDIR)usr/lib/ocf/resource.d/rabbitmq/rabbitmq-server diff --git a/packaging/debs/Debian/debian/watch b/packaging/debs/Debian/debian/watch deleted file mode 100644 index b41aff9a..00000000 --- a/packaging/debs/Debian/debian/watch +++ /dev/null @@ -1,4 +0,0 @@ -version=3 - -http://www.rabbitmq.com/releases/rabbitmq-server/v(.*)/rabbitmq-server-(\d.*)\.tar\.gz \ - debian uupdate diff --git a/packaging/debs/apt-repository/Makefile b/packaging/debs/apt-repository/Makefile deleted file mode 100644 index ce4347bc..00000000 --- a/packaging/debs/apt-repository/Makefile +++ /dev/null @@ -1,28 +0,0 @@ -SIGNING_USER_EMAIL=info@rabbitmq.com - -ifeq "$(UNOFFICIAL_RELEASE)" "" -HOME_ARG=HOME=$(GNUPG_PATH) -endif - -all: debian_apt_repository - -clean: - rm -rf debian - -CAN_HAS_REPREPRO=$(shell [ -f /usr/bin/reprepro ] && echo true) -ifeq ($(CAN_HAS_REPREPRO), true) -debian_apt_repository: clean - mkdir -p debian/conf - cp -a distributions debian/conf -ifeq "$(UNOFFICIAL_RELEASE)" "" - echo SignWith: $(SIGNING_USER_EMAIL) >> debian/conf/distributions -endif - for FILE in ../Debian/*.changes ; do \ - $(HOME_ARG) reprepro --ignore=wrongdistribution \ - -Vb debian include kitten $${FILE} ; \ - done - reprepro -Vb debian createsymlinks -else -debian_apt_repository: - @echo Not building APT repository as reprepro could not be found -endif diff --git a/packaging/debs/apt-repository/README b/packaging/debs/apt-repository/README deleted file mode 100644 index 514a37f3..00000000 --- a/packaging/debs/apt-repository/README +++ /dev/null @@ -1,17 +0,0 @@ -APT repository for RabbitMQ - -Previously we've attempted to run a repository in the same way that -Debian would: have repository management software installed on the -server, and upload new packages to the repository as and when they're -ready. - -This turned out to be both fiddly and annoying to do (and more -particularly to automate) so since our repository is always going to be -small it's easier just to create the entire repository as part of the -build process, just like a package. It can then be moved into place as a -single unit. The make target "debian_apt_repository" (invoked by "dist") -will create it, and it can get moved onto the server with the rest of -the packages. - -Read "README-real-repository" for information on how we used to do -this. diff --git a/packaging/debs/apt-repository/README-real-repository b/packaging/debs/apt-repository/README-real-repository deleted file mode 100644 index b1526227..00000000 --- a/packaging/debs/apt-repository/README-real-repository +++ /dev/null @@ -1,130 +0,0 @@ -APT Repository for RabbitMQ in Debian -===================================== - -First, a note on what we're trying to do. We want a single "testing" -repository. When RabbitMQ is more stable we will also want a -"stable" repository. It is very important to understand that these refer -to the state of the rabbit code, *NOT* which Debian distribution they go -with. At the moment our dependencies are very simple so our packages can -be used with any current Debian version (etch, lenny, sid) as well as -with Ubuntu. So although we have a "testing" distribution, this is not -codenamed "lenny". Instead it's currently codenamed "kitten" since -that's a baby rabbit. - -Secondly, a note on software. We need a tool to manage the repository, -and a tool to perform uploads to the repository. Debian being Debian -there are quite a few of each. We will use "rerepro" to manage the -repository since it's modern, maintained, and fairly simple. We will use -"dupload" to perform the uploads since it gives us the ability to run -arbitrary commands after the upload, which means we don't need to run a -cron job on the web server to process uploads. - -Creating a repository -===================== - -Much of this was cribbed from: -http://www.debian-administration.org/articles/286 - -The repository is fundamentally just some files in a folder, served over -HTTP (or FTP etc). So let's make it "debian" in the root of -www.rabbitmq.com. - -This means the repository will be at http://www.rabbitmq.com/debian/ and -can be added to a sources.list as: - -deb http://www.rabbitmq.com/debian/ testing main -deb-src http://www.rabbitmq.com/debian/ testing main - -Inside this folder we need a "conf" folder, and in -that we need a "distributions" configuration file - see the file in this -folder. Note that: - -* We list all architectures so that people can install rabbitmq-server - on to anything. -* We don't list the "all" architecture even though we use it; it's - implied. -* We only have a "main" component, we could have non-free and contrib - here if it was relevant. -* We list the email address associated with the key we want to use to - sign the repository. Yes, even after signing packages we still want to - sign the repository. - -We're now ready to go. Assuming the path to our repository is /path, -(and hence configuration is in /path/conf) we can upload a file to the -repository (creating it in the process) by doing something like this on -the repository host: - -$ reprepro --ignore=wrongdistribution -Vb /path include kitten \ - rabbitmq-server_1.0.0-alpha-1_i386.changes - -Note that we upload to the distribution "kitten" rather than "testing". -We also pass --ignore=wrongdistribution since the current packages are -built to go in "unstable" (this will be changed obviously). - -Note also that the .changes file claims to be for i386 even though the -package is for architecture "all". This is a bug in debhelper. - -Finally, if you've just created a repository, you want to run: - -$ reprepro -Vb /path createsymlinks - -since this will create "kitten" -> "testing" symlinks. You only need to -do this once. - -Removing packages -================= - -Fairly simple: - -$ reprepro --ignore=wrongdistribution -Vb /path remove kitten \ - rabbitmq-server - -Subsequent updates and "dupload" -================================ - -You can run the "reprepro" command above again to update the versions of -software in the repository. Since we probably don't want to have to log -into the machine in question to do this, we can use "dupload". This is a -tool which uploads Debian packages. The supplied file "dupload.conf" can -be renamed to ~/.dupload.conf. If you then run: - -$ dupload -to rabbit --nomail . - -in the folder with the .changes file, dupload will: - -* create an incoming folder in your home directory on the repository -machine -* upload everything there -* run reprepro to move the packages into the repository -* "rm -rf" the uploads folder - -This is a bit cheesy but should be enough for our purposes. The -dupload.conf uses scp and ssh so you need a public-key login (or tpye -your password lots). - -There's still an open question as to whether dupload is really needed -for our case. - -Keys and signing -================ - -We currently sign the package as we build it; but we also need to sign -the repository. The key is currently on my machine (mrforgetful) and has -ID 056E8E56. We should put it on CDs though. - -reprepro will automatically sign the repository if we have the right -SignWith line in the configuration, AND the secret key is installed on -the repository server. This is obviously not ideal; not sure what the -solution is right now. - -You can export the public key with: - -$ gpg --export --armor 056E8E56 > rabbit.pub - -(Open question: do we want to get our key on subkeys.pgp.net?) - -We can then add this key to the website and tell our users to import the -key into apt with: - -# apt-key add rabbit.pub - diff --git a/packaging/debs/apt-repository/distributions b/packaging/debs/apt-repository/distributions deleted file mode 100644 index 183eb034..00000000 --- a/packaging/debs/apt-repository/distributions +++ /dev/null @@ -1,7 +0,0 @@ -Origin: RabbitMQ -Label: RabbitMQ Repository for Debian / Ubuntu etc -Suite: testing -Codename: kitten -Architectures: arm hppa ia64 mips mipsel s390 sparc i386 amd64 powerpc source -Components: main -Description: RabbitMQ Repository for Debian / Ubuntu etc diff --git a/packaging/debs/apt-repository/dupload.conf b/packaging/debs/apt-repository/dupload.conf deleted file mode 100644 index 9ceed760..00000000 --- a/packaging/debs/apt-repository/dupload.conf +++ /dev/null @@ -1,16 +0,0 @@ -package config; - -$rabbit_user = "simon"; -$rabbit_host = "mrforgetful.lshift.net"; -$rabbit_repo_path = "/srv/debian"; -$rabbit_reprepro_extra_args = "--ignore=wrongdistribution"; - -$cfg{'rabbit'} = { - fqdn => "$rabbit_host", - login => "$rabbit_user", - method => "scp", - incoming => "incoming", -}; - -$preupload{'deb'} = "ssh ${rabbit_host} mkdir incoming"; -$postupload{'deb'} = "ssh ${rabbit_host} \"cd incoming && reprepro ${$rabbit_reprepro_extra_args} -Vb ${rabbit_repo_path} include kitten *.changes && cd .. && rm -r incoming\""; diff --git a/packaging/generic-unix/Makefile b/packaging/generic-unix/Makefile deleted file mode 100644 index c4e01f4a..00000000 --- a/packaging/generic-unix/Makefile +++ /dev/null @@ -1,23 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_TARBALL=rabbitmq-server-generic-unix-$(VERSION) - -dist: - tar -zxvf ../../dist/$(SOURCE_DIR).tar.gz - - $(MAKE) -C $(SOURCE_DIR) \ - TARGET_DIR=`pwd`/$(TARGET_DIR) \ - SBIN_DIR=`pwd`/$(TARGET_DIR)/sbin \ - MAN_DIR=`pwd`/$(TARGET_DIR)/share/man \ - install - - tar -zcf $(TARGET_TARBALL).tar.gz $(TARGET_DIR) - rm -rf $(SOURCE_DIR) $(TARGET_DIR) - -clean: clean_partial - rm -f rabbitmq-server-generic-unix-*.tar.gz - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile deleted file mode 100644 index 47da02dc..00000000 --- a/packaging/macports/Makefile +++ /dev/null @@ -1,59 +0,0 @@ -TARBALL_SRC_DIR=../../dist -TARBALL_BIN_DIR=../../packaging/generic-unix/ -TARBALL_SRC=$(wildcard $(TARBALL_SRC_DIR)/rabbitmq-server-[0-9.]*.tar.gz) -TARBALL_BIN=$(wildcard $(TARBALL_BIN_DIR)/rabbitmq-server-generic-unix-[0-9.]*.tar.gz) -COMMON_DIR=../common -VERSION=$(shell echo $(TARBALL_SRC) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -# The URL at which things really get deployed -REAL_WEB_URL=http://www.rabbitmq.com/ - -# The user@host for an OSX machine with macports installed, which is -# used to generate the macports index files. That step will be -# skipped if this variable is not set. If you do set it, you might -# also want to set SSH_OPTS, which allows adding ssh options, e.g. to -# specify a key that will get into the OSX machine without a -# passphrase. -MACPORTS_USERHOST= - -MACPORTS_DIR=macports -DEST=$(MACPORTS_DIR)/net/rabbitmq-server - -all: macports - -dirs: - mkdir -p $(DEST)/files - -$(DEST)/Portfile: Portfile.in - ./make-checksums.sh $(TARBALL_SRC) $(TARBALL_BIN) > checksums.sed - sed -e "s|@VERSION@|$(VERSION)|g;s|@BASE_URL@|$(REAL_WEB_URL)|g" \ - -f checksums.sed <$^ >$@ - rm checksums.sed - -# The purpose of the intricate substitution below is to set up similar -# environment vars to the ones that su will on Linux. On OS X, we -# have to use the -m option to su in order to be able to set the shell -# (which for the rabbitmq user would otherwise be /dev/null). But the -# -m option means that *all* environment vars get preserved. Erlang -# needs vars such as HOME to be set. So we have to set them -# explicitly. -macports: dirs $(DEST)/Portfile - cp $(COMMON_DIR)/rabbitmq-script-wrapper $(DEST)/files - sed -i -e 's|@SU_RABBITMQ_SH_C@|SHELL=/bin/sh HOME=/var/lib/rabbitmq USER=rabbitmq LOGNAME=rabbitmq PATH="$$(eval `PATH=MACPORTS_PREFIX/bin /usr/libexec/path_helper -s`; echo $$PATH)" su -m rabbitmq -c|' \ - $(DEST)/files/rabbitmq-script-wrapper - cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files - if [ -n "$(MACPORTS_USERHOST)" ] ; then \ - tar cf - -C $(MACPORTS_DIR) . | ssh $(SSH_OPTS) $(MACPORTS_USERHOST) ' \ - d="/tmp/mkportindex.$$$$" ; \ - mkdir $$d \ - && cd $$d \ - && tar xf - \ - && /opt/local/bin/portindex -a -o . >/dev/null \ - && tar cf - . \ - && cd \ - && rm -rf $$d' \ - | tar xf - -C $(MACPORTS_DIR) ; \ - fi - -clean: - rm -rf $(MACPORTS_DIR) checksums.sed diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in deleted file mode 100644 index 809f518b..00000000 --- a/packaging/macports/Portfile.in +++ /dev/null @@ -1,118 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version @VERSION@ -categories net -maintainers paperplanes.de:meyer rabbitmq.com:tonyg openmaintainer -platforms darwin -supported_archs noarch - -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage @BASE_URL@ -master_sites @BASE_URL@releases/rabbitmq-server/v${version}/ - -distfiles ${name}-${version}${extract.suffix} \ - ${name}-generic-unix-${version}${extract.suffix} - -checksums \ - ${name}-${version}${extract.suffix} \ - md5 @md5-src@ \ - sha1 @sha1-src@ \ - rmd160 @rmd160-src@ \ - ${name}-generic-unix-${version}${extract.suffix} \ - md5 @md5-bin@ \ - sha1 @sha1-bin@ \ - rmd160 @rmd160-bin@ - -depends_lib port:erlang -depends_build port:libxslt - -platform darwin 8 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -platform darwin 9 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -# no need for simplejson on Snow Leopard or higher - - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin -set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin -set mansrc ${workpath}/rabbitmq_server-${version}/share/man -set mandest ${destroot}${prefix}/share/man - -use_configure no - -use_parallel_build yes - -destroot.target install_bin - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq):${prefix}\\1:g" \ - ${realsbin}/rabbitmq-env - foreach var {CONFIG_FILE LOG_BASE MNESIA_BASE} { - reinplace -E "s:^($var)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - } - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-server - - reinplace -E "s:MACPORTS_PREFIX/bin:${prefix}/bin:" \ - ${wrappersbin}/rabbitmq-server - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-server - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-server ${wrappersbin}/rabbitmqctl - - xinstall -m 644 -W ${mansrc}/man1 rabbitmq-server.1.gz rabbitmqctl.1.gz \ - ${mandest}/man1/ - xinstall -m 644 -W ${mansrc}/man5 rabbitmq-env.conf.5.gz ${mandest}/man5/ -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/make-checksums.sh b/packaging/macports/make-checksums.sh deleted file mode 100755 index 11424dfc..00000000 --- a/packaging/macports/make-checksums.sh +++ /dev/null @@ -1,14 +0,0 @@ -#!/bin/bash -# NB: this script requires bash -tarball_src=$1 -tarball_bin=$2 -for type in src bin -do - tarball_var=tarball_${type} - tarball=${!tarball_var} - for algo in md5 sha1 rmd160 - do - checksum=$(openssl $algo ${tarball} | awk '{print $NF}') - echo "s|@$algo-$type@|$checksum|g" - done -done diff --git a/packaging/macports/make-port-diff.sh b/packaging/macports/make-port-diff.sh deleted file mode 100755 index 3eb1b9f5..00000000 --- a/packaging/macports/make-port-diff.sh +++ /dev/null @@ -1,27 +0,0 @@ -#!/bin/bash - -# This script grabs the latest rabbitmq-server bits from the main -# macports subversion repo, and from the rabbitmq.com macports repo, -# and produces a diff from the former to the latter for submission -# through the macports trac. - -set -e - -dir=/tmp/$(basename $0).$$ -mkdir -p $dir/macports $dir/rabbitmq - -# Get the files from the macports subversion repo -cd $dir/macports -svn checkout http://svn.macports.org/repository/macports/trunk/dports/net/rabbitmq-server/ 2>&1 >/dev/null - -# Clear out the svn $id tag -sed -i -e 's|^# \$.*$|# $Id$|' rabbitmq-server/Portfile - -# Get the files from the rabbitmq.com macports repo -cd ../rabbitmq -curl -s http://www.rabbitmq.com/releases/macports/net/rabbitmq-server.tgz | tar xzf - - -cd .. -diff -Naur --exclude=.svn macports rabbitmq -cd / -rm -rf $dir diff --git a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff deleted file mode 100644 index 45b49496..00000000 --- a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff +++ /dev/null @@ -1,10 +0,0 @@ ---- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 -+++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 -@@ -22,6 +22,7 @@ - ; - --pid=none - -+UserNamerabbitmq - Debug - Disabled - OnDemand diff --git a/packaging/windows-exe/Makefile b/packaging/windows-exe/Makefile deleted file mode 100644 index 59803f9c..00000000 --- a/packaging/windows-exe/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -VERSION=0.0.0 -ZIP=../windows/rabbitmq-server-windows-$(VERSION) - -dist: rabbitmq-$(VERSION).nsi rabbitmq_server-$(VERSION) - makensis rabbitmq-$(VERSION).nsi - -rabbitmq-$(VERSION).nsi: rabbitmq_nsi.in - sed \ - -e 's|%%VERSION%%|$(VERSION)|' \ - $< > $@ - -rabbitmq_server-$(VERSION): - unzip $(ZIP) - -clean: - rm -rf rabbitmq-*.nsi rabbitmq_server-* rabbitmq-server-*.exe diff --git a/packaging/windows-exe/rabbitmq.ico b/packaging/windows-exe/rabbitmq.ico deleted file mode 100644 index 5e169a79..00000000 Binary files a/packaging/windows-exe/rabbitmq.ico and /dev/null differ diff --git a/packaging/windows-exe/rabbitmq_nsi.in b/packaging/windows-exe/rabbitmq_nsi.in deleted file mode 100644 index 1ed4064e..00000000 --- a/packaging/windows-exe/rabbitmq_nsi.in +++ /dev/null @@ -1,237 +0,0 @@ -; Use the "Modern" UI -!include MUI2.nsh -!include LogicLib.nsh -!include WinMessages.nsh -!include FileFunc.nsh -!include WordFunc.nsh - -!define env_hklm 'HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"' -!define uninstall "Software\Microsoft\Windows\CurrentVersion\Uninstall\RabbitMQ" - -;-------------------------------- - -; The name of the installer -Name "RabbitMQ Server %%VERSION%%" - -; The file to write -OutFile "rabbitmq-server-%%VERSION%%.exe" - -; Icons -!define MUI_ICON "rabbitmq.ico" - -; The default installation directory -InstallDir "$PROGRAMFILES\RabbitMQ Server" - -; Registry key to check for directory (so if you install again, it will -; overwrite the old one automatically) -InstallDirRegKey HKLM "Software\VMware, Inc.\RabbitMQ Server" "Install_Dir" - -; Request application privileges for Windows Vista -RequestExecutionLevel admin - -SetCompressor /solid lzma - -VIProductVersion "%%VERSION%%.0" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductVersion" "%%VERSION%%" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductName" "RabbitMQ Server" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "Comments" "" -VIAddVersionKey /LANG=${LANG_ENGLISH} "CompanyName" "VMware, Inc" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalTrademarks" "" ; TODO ? -VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalCopyright" "Copyright (c) 2007-2011 VMware, Inc. All rights reserved." -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileDescription" "RabbitMQ Server" -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileVersion" "%%VERSION%%" - -;-------------------------------- - -; Pages - - -; !insertmacro MUI_PAGE_LICENSE "..\..\LICENSE-MPL-RabbitMQ" - !insertmacro MUI_PAGE_COMPONENTS - !insertmacro MUI_PAGE_DIRECTORY - !insertmacro MUI_PAGE_INSTFILES - !insertmacro MUI_PAGE_FINISH - - !insertmacro MUI_UNPAGE_CONFIRM - !insertmacro MUI_UNPAGE_INSTFILES - !define MUI_FINISHPAGE_TEXT "RabbitMQ Server %%VERSION%% has been uninstalled from your computer.$\n$\nPlease note that the log and database directories located at $APPDATA\RabbitMQ have not been removed. You can remove them manually if desired." - !insertmacro MUI_UNPAGE_FINISH - -;-------------------------------- -;Languages - - !insertmacro MUI_LANGUAGE "English" - -;-------------------------------- - -; The stuff to install -Section "RabbitMQ Server (required)" Rabbit - - SectionIn RO - - ; Set output path to the installation directory. - SetOutPath $INSTDIR - - ; Put files there - File /r "rabbitmq_server-%%VERSION%%" - File "rabbitmq.ico" - - ; Write the installation path into the registry - WriteRegStr HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" "Install_Dir" "$INSTDIR" - - ; Write the uninstall keys for Windows - WriteRegStr HKLM ${uninstall} "DisplayName" "RabbitMQ Server" - WriteRegStr HKLM ${uninstall} "UninstallString" "$INSTDIR\uninstall.exe" - WriteRegStr HKLM ${uninstall} "DisplayIcon" "$INSTDIR\uninstall.exe,0" - WriteRegStr HKLM ${uninstall} "Publisher" "VMware, Inc." - WriteRegStr HKLM ${uninstall} "DisplayVersion" "%%VERSION%%" - WriteRegDWORD HKLM ${uninstall} "NoModify" 1 - WriteRegDWORD HKLM ${uninstall} "NoRepair" 1 - - ${GetSize} "$INSTDIR" "/S=0K" $0 $1 $2 - IntFmt $0 "0x%08X" $0 - WriteRegDWORD HKLM "${uninstall}" "EstimatedSize" "$0" - - WriteUninstaller "uninstall.exe" -SectionEnd - -;-------------------------------- - -Section "RabbitMQ Service" RabbitService - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" install' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" start' - CopyFiles "$WINDIR\.erlang.cookie" "$PROFILE\.erlang.cookie" -SectionEnd - -;-------------------------------- - -Section "Start Menu" RabbitStartMenu - ; In case the service is not installed, or the service installation fails, - ; make sure these exist or Explorer will get confused. - CreateDirectory "$APPDATA\RabbitMQ\log" - CreateDirectory "$APPDATA\RabbitMQ\db" - - CreateDirectory "$SMPROGRAMS\RabbitMQ Server" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Uninstall.lnk" "$INSTDIR\uninstall.exe" "" "$INSTDIR\uninstall.exe" 0 - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Plugins Directory.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\plugins" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Log Directory.lnk" "$APPDATA\RabbitMQ\log" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Database Directory.lnk" "$APPDATA\RabbitMQ\db" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\(Re)Install Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "install" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Remove Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "remove" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Start Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "start" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Stop Service.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "stop" "$INSTDIR\rabbitmq.ico" - - SetOutPath "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Command Prompt (sbin dir).lnk" "$WINDIR\system32\cmd.exe" "" "$WINDIR\system32\cmd.exe" - SetOutPath $INSTDIR -SectionEnd - -;-------------------------------- - -; Section descriptions - -LangString DESC_Rabbit ${LANG_ENGLISH} "The RabbitMQ Server." -LangString DESC_RabbitService ${LANG_ENGLISH} "Set up RabbitMQ as a Windows Service." -LangString DESC_RabbitStartMenu ${LANG_ENGLISH} "Add some useful links to the start menu." - -!insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN - !insertmacro MUI_DESCRIPTION_TEXT ${Rabbit} $(DESC_Rabbit) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitService} $(DESC_RabbitService) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitStartMenu} $(DESC_RabbitStartMenu) -!insertmacro MUI_FUNCTION_DESCRIPTION_END - -;-------------------------------- - -; Uninstaller - -Section "Uninstall" - - ; Remove registry keys - DeleteRegKey HKLM ${uninstall} - DeleteRegKey HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" - - ; TODO these will fail if the service is not installed - do we care? - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" stop' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" remove' - - ; Remove files and uninstaller - RMDir /r "$INSTDIR\rabbitmq_server-%%VERSION%%" - Delete "$INSTDIR\rabbitmq.ico" - Delete "$INSTDIR\uninstall.exe" - - ; Remove start menu items - RMDir /r "$SMPROGRAMS\RabbitMQ Server" - - DeleteRegValue ${env_hklm} ERLANG_HOME - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - -SectionEnd - -;-------------------------------- - -; Functions - -Function .onInit - Call findErlang - - ReadRegStr $0 HKLM ${uninstall} "UninstallString" - ${If} $0 != "" - MessageBox MB_OKCANCEL|MB_ICONEXCLAMATION "RabbitMQ is already installed. $\n$\nClick 'OK' to remove the previous version or 'Cancel' to cancel this installation." IDCANCEL norun - - ;Run the uninstaller - ClearErrors - ExecWait $INSTDIR\uninstall.exe - - norun: - Abort - ${EndIf} -FunctionEnd - -Function findErlang - - StrCpy $0 0 - StrCpy $2 "not-found" - ${Do} - EnumRegKey $1 HKLM Software\Ericsson\Erlang $0 - ${If} $1 = "" - ${Break} - ${EndIf} - ${If} $1 <> "ErlSrv" - StrCpy $2 $1 - ${EndIf} - - IntOp $0 $0 + 1 - ${Loop} - - ${If} $2 = "not-found" - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Erlang could not be detected.$\nYou must install Erlang before installing RabbitMQ. Would you like the installer to open a browser window to the Erlang download site?" IDNO abort - ExecShell "open" "http://www.erlang.org/download.html" - abort: - Abort - ${Else} - ${VersionCompare} $2 "5.6.3" $0 - ${VersionCompare} $2 "5.8.1" $1 - - ${If} $0 = 2 - MessageBox MB_OK|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is too old. Please install a more recent version." - Abort - ${ElseIf} $1 = 2 - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is comparatively old.$\nFor best results, please install a newer version.$\nDo you wish to continue?" IDYES no_abort - Abort - no_abort: - ${EndIf} - - ReadRegStr $0 HKLM "Software\Ericsson\Erlang\$2" "" - - ; See http://nsis.sourceforge.net/Setting_Environment_Variables - WriteRegExpandStr ${env_hklm} ERLANG_HOME $0 - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - - ; On Windows XP changing the permanent environment does not change *our* - ; environment, so do that as well. - System::Call 'Kernel32::SetEnvironmentVariableA(t, t) i("ERLANG_HOME", "$0").r0' - ${EndIf} - -FunctionEnd \ No newline at end of file diff --git a/packaging/windows/Makefile b/packaging/windows/Makefile deleted file mode 100644 index dacfa620..00000000 --- a/packaging/windows/Makefile +++ /dev/null @@ -1,35 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_ZIP=rabbitmq-server-windows-$(VERSION) - -dist: - tar -zxvf ../../dist/$(SOURCE_DIR).tar.gz - $(MAKE) -C $(SOURCE_DIR) - - mkdir $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-server.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-service.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmqctl.bat $(SOURCE_DIR)/sbin - rm -rf $(SOURCE_DIR)/scripts - rm -rf $(SOURCE_DIR)/codegen* $(SOURCE_DIR)/Makefile - rm -f $(SOURCE_DIR)/README - rm -rf $(SOURCE_DIR)/docs - - mv $(SOURCE_DIR) $(TARGET_DIR) - mkdir -p $(TARGET_DIR) - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory > $(TARGET_DIR)/plugins/README - xmlto -o . xhtml-nochunks ../../docs/rabbitmq-service.xml - elinks -dump -no-references -no-numbering rabbitmq-service.html \ - > $(TARGET_DIR)/readme-service.txt - todos $(TARGET_DIR)/readme-service.txt - zip -r $(TARGET_ZIP).zip $(TARGET_DIR) - rm -rf $(TARGET_DIR) rabbitmq-service.html - -clean: clean_partial - rm -f rabbitmq-server-windows-*.zip - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/scripts/rabbitmq-env b/scripts/rabbitmq-env deleted file mode 100755 index 3e173949..00000000 --- a/scripts/rabbitmq-env +++ /dev/null @@ -1,44 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Determine where this script is really located -SCRIPT_PATH="$0" -while [ -h "$SCRIPT_PATH" ] ; do - FULL_PATH=`readlink -f $SCRIPT_PATH 2>/dev/null` - if [ "$?" != "0" ]; then - REL_PATH=`readlink $SCRIPT_PATH` - if expr "$REL_PATH" : '/.*' > /dev/null; then - SCRIPT_PATH="$REL_PATH" - else - SCRIPT_PATH="`dirname "$SCRIPT_PATH"`/$REL_PATH" - fi - else - SCRIPT_PATH=$FULL_PATH - fi -done - -SCRIPT_DIR=`dirname $SCRIPT_PATH` -RABBITMQ_HOME="${SCRIPT_DIR}/.." -[ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname` -NODENAME=rabbit@${HOSTNAME%%.*} - -# Load configuration from the rabbitmq.conf file -if [ -f /etc/rabbitmq/rabbitmq.conf ]; then - echo -n "WARNING: ignoring /etc/rabbitmq/rabbitmq.conf -- " - echo "location has moved to /etc/rabbitmq/rabbitmq-env.conf" -fi -[ -f /etc/rabbitmq/rabbitmq-env.conf ] && . /etc/rabbitmq/rabbitmq-env.conf diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server deleted file mode 100755 index 2f80eb96..00000000 --- a/scripts/rabbitmq-server +++ /dev/null @@ -1,117 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -SERVER_ERL_ARGS="+K true +A30 +P 1048576 \ --kernel inet_default_connect_options [{nodelay,true}]" -CONFIG_FILE=/etc/rabbitmq/rabbitmq -LOG_BASE=/var/log/rabbitmq -MNESIA_BASE=/var/lib/rabbitmq/mnesia -SERVER_START_ARGS= - -. `dirname $0`/rabbitmq-env - -DEFAULT_NODE_IP_ADDRESS=auto -DEFAULT_NODE_PORT=5672 -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} -[ "x" = "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} -if [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] -then - if [ "x" != "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_IP_ADDRESS=${DEFAULT_NODE_IP_ADDRESS} - fi -else - if [ "x" = "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_PORT=${DEFAULT_NODE_PORT} - fi -fi -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_SERVER_ERL_ARGS" ] && RABBITMQ_SERVER_ERL_ARGS=${SERVER_ERL_ARGS} -[ "x" = "x$RABBITMQ_CONFIG_FILE" ] && RABBITMQ_CONFIG_FILE=${CONFIG_FILE} -[ "x" = "x$RABBITMQ_LOG_BASE" ] && RABBITMQ_LOG_BASE=${LOG_BASE} -[ "x" = "x$RABBITMQ_MNESIA_BASE" ] && RABBITMQ_MNESIA_BASE=${MNESIA_BASE} -[ "x" = "x$RABBITMQ_SERVER_START_ARGS" ] && RABBITMQ_SERVER_START_ARGS=${SERVER_START_ARGS} - -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${MNESIA_DIR} -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME} - -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${PLUGINS_EXPAND_DIR} -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME}-plugins-expand - -[ "x" = "x$RABBITMQ_PLUGINS_DIR" ] && RABBITMQ_PLUGINS_DIR="${RABBITMQ_HOME}/plugins" - -## Log rotation -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS=${LOGS} -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}.log" -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS=${SASL_LOGS} -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}-sasl.log" -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=${BACKUP_EXTENSION} -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=".1" - -[ -f "${RABBITMQ_LOGS}" ] && cat "${RABBITMQ_LOGS}" >> "${RABBITMQ_LOGS}${RABBITMQ_BACKUP_EXTENSION}" -[ -f "${RABBITMQ_SASL_LOGS}" ] && cat "${RABBITMQ_SASL_LOGS}" >> "${RABBITMQ_SASL_LOGS}${RABBITMQ_BACKUP_EXTENSION}" - -RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' - -RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" -if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then - if erl \ - -pa "$RABBITMQ_EBIN_ROOT" \ - -noinput \ - -hidden \ - -s rabbit_prelaunch \ - -sname rabbitmqprelaunch$$ \ - -extra "$RABBITMQ_PLUGINS_DIR" "${RABBITMQ_PLUGINS_EXPAND_DIR}" "${RABBITMQ_NODENAME}" - then - RABBITMQ_BOOT_FILE="${RABBITMQ_PLUGINS_EXPAND_DIR}/rabbit" - RABBITMQ_EBIN_PATH="" - else - exit 1 - fi -else - RABBITMQ_BOOT_FILE=start_sasl - RABBITMQ_EBIN_PATH="-pa ${RABBITMQ_EBIN_ROOT}" -fi -RABBITMQ_CONFIG_ARG= -[ -f "${RABBITMQ_CONFIG_FILE}.config" ] && RABBITMQ_CONFIG_ARG="-config ${RABBITMQ_CONFIG_FILE}" - -RABBITMQ_LISTEN_ARG= -[ "x" != "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$RABBITMQ_NODE_IP_ADDRESS" ] && RABBITMQ_LISTEN_ARG="-rabbit tcp_listeners [{\""${RABBITMQ_NODE_IP_ADDRESS}"\","${RABBITMQ_NODE_PORT}"}]" - -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_SERVER_ERL_ARGS, contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - -exec erl \ - ${RABBITMQ_EBIN_PATH} \ - ${RABBITMQ_START_RABBIT} \ - -sname ${RABBITMQ_NODENAME} \ - -boot ${RABBITMQ_BOOT_FILE} \ - ${RABBITMQ_CONFIG_ARG} \ - +W w \ - ${RABBITMQ_SERVER_ERL_ARGS} \ - ${RABBITMQ_LISTEN_ARG} \ - -sasl errlog_type error \ - -kernel error_logger '{file,"'${RABBITMQ_LOGS}'"}' \ - -sasl sasl_error_logger '{file,"'${RABBITMQ_SASL_LOGS}'"}' \ - -os_mon start_cpu_sup true \ - -os_mon start_disksup false \ - -os_mon start_memsup false \ - -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - ${RABBITMQ_SERVER_START_ARGS} \ - "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat deleted file mode 100644 index 5e2097db..00000000 --- a/scripts/rabbitmq-server.bat +++ /dev/null @@ -1,156 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\RabbitMQ -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based of size...) is left as an exercice for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!-sasl.log - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS!!BACKUP_EXTENSION!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS!!BACKUP_EXTENSION!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --sname rabbitmqprelaunch!RANDOM! ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "!RABBITMQ_NODENAME!" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners [{\""!RABBITMQ_NODE_IP_ADDRESS!"\","!RABBITMQ_NODE_PORT!"}] - ) -) - -"!ERLANG_HOME!\bin\erl.exe" ^ -!RABBITMQ_EBIN_PATH! ^ --noinput ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --sname !RABBITMQ_NODENAME! ^ --s rabbit ^ -+W w ^ -+A30 ^ -+P 1048576 ^ --kernel inet_default_connect_options "[{nodelay, true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!LOGS:\=/!"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!SASL_LOGS:\=/!"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -endlocal -endlocal diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat deleted file mode 100644 index aa428a8c..00000000 --- a/scripts/rabbitmq-service.bat +++ /dev/null @@ -1,244 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TN0=%~n0 -set TDP0=%~dp0 -set P1=%1 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_SERVICENAME!"=="" ( - set RABBITMQ_SERVICENAME=RabbitMQ -) - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\!RABBITMQ_SERVICENAME! -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if "!ERLANG_SERVICE_MANAGER_PATH!"=="" ( - if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B - ) - for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\erlsrv.exe" ( - set ERLANG_SERVICE_MANAGER_PATH=!ERLANG_HOME!\%%i\bin - ) -) - -set CONSOLE_FLAG= -set CONSOLE_LOG_VALID= -for %%i in (new reuse) do if "%%i" == "!RABBITMQ_CONSOLE_LOG!" set CONSOLE_LOG_VALID=TRUE -if "!CONSOLE_LOG_VALID!" == "TRUE" ( - set CONSOLE_FLAG=-debugtype !RABBITMQ_CONSOLE_LOG! -) - -rem *** End of configuration *** - -if not exist "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" ( - echo. - echo ********************************************** - echo ERLANG_SERVICE_MANAGER_PATH not set correctly. - echo ********************************************** - echo. - echo "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" not found - echo Please set ERLANG_SERVICE_MANAGER_PATH to the folder containing "erlsrv.exe". - echo. - exit /B 1 -) - -rem erlang prefers forwardslash as separator in paths -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based on size...) is left as an exercise for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!-sasl.log - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS!!BACKUP_EXTENSION!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS!!BACKUP_EXTENSION!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -if "!P1!" == "install" goto INSTALL_SERVICE -for %%i in (start stop disable enable list remove) do if "%%i" == "!P1!" goto MODIFY_SERVICE - -echo. -echo ********************* -echo Service control usage -echo ********************* -echo. -echo !TN0! help - Display this help -echo !TN0! install - Install the !RABBITMQ_SERVICENAME! service -echo !TN0! remove - Remove the !RABBITMQ_SERVICENAME! service -echo. -echo The following actions can also be accomplished by using -echo Windows Services Management Console (services.msc): -echo. -echo !TN0! start - Start the !RABBITMQ_SERVICENAME! service -echo !TN0! stop - Stop the !RABBITMQ_SERVICENAME! service -echo !TN0! disable - Disable the !RABBITMQ_SERVICENAME! service -echo !TN0! enable - Enable the !RABBITMQ_SERVICENAME! service -echo. -exit /B - - -:INSTALL_SERVICE - -if not exist "!RABBITMQ_BASE!" ( - echo Creating base directory !RABBITMQ_BASE! & md "!RABBITMQ_BASE!" -) - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" list !RABBITMQ_SERVICENAME! 2>NUL 1>NUL -if errorlevel 1 ( - "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" add !RABBITMQ_SERVICENAME! -) else ( - echo !RABBITMQ_SERVICENAME! service is already present - only updating service parameters -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners "[{\"!RABBITMQ_NODE_IP_ADDRESS!\", !RABBITMQ_NODE_PORT!}]" - ) -) - -set ERLANG_SERVICE_ARGUMENTS= ^ -!RABBITMQ_EBIN_PATH! ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --s rabbit ^ -+W w ^ -+A30 ^ --kernel inet_default_connect_options "[{nodelay,true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!LOGS:\=/!"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!SASL_LOGS:\=/!"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:\=\\! -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:"=\"! - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" set !RABBITMQ_SERVICENAME! ^ --machine "!ERLANG_SERVICE_MANAGER_PATH!\erl.exe" ^ --env ERL_CRASH_DUMP="!RABBITMQ_BASE_UNIX!/erl_crash.dump" ^ --workdir "!RABBITMQ_BASE!" ^ --stopaction "rabbit:stop_and_halt()." ^ --sname !RABBITMQ_NODENAME! ^ -!CONSOLE_FLAG! ^ --args "!ERLANG_SERVICE_ARGUMENTS!" > NUL - -goto END - - -:MODIFY_SERVICE - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" !P1! !RABBITMQ_SERVICENAME! -goto END - - -:END - -endlocal -endlocal diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl deleted file mode 100755 index 9a11c3b3..00000000 --- a/scripts/rabbitmqctl +++ /dev/null @@ -1,31 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -. `dirname $0`/rabbitmq-env - -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} - -exec erl \ - -pa "${RABBITMQ_HOME}/ebin" \ - -noinput \ - -hidden \ - ${RABBITMQ_CTL_ERL_ARGS} \ - -sname rabbitmqctl$$ \ - -s rabbit_control \ - -nodename $RABBITMQ_NODENAME \ - -extra "$@" diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat deleted file mode 100644 index a74a91fd..00000000 --- a/scripts/rabbitmqctl.bat +++ /dev/null @@ -1,49 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! - -endlocal -endlocal diff --git a/src/bpqueue.erl b/src/bpqueue.erl deleted file mode 100644 index 71a34262..00000000 --- a/src/bpqueue.erl +++ /dev/null @@ -1,271 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(bpqueue). - -%% Block-prefixed queue. From the perspective of the queue interface -%% the datastructure acts like a regular queue where each value is -%% paired with the prefix. -%% -%% This is implemented as a queue of queues, which is more space and -%% time efficient, whilst supporting the normal queue interface. Each -%% inner queue has a prefix, which does not need to be unique, and it -%% is guaranteed that no two consecutive blocks have the same -%% prefix. len/1 returns the flattened length of the queue and is -%% O(1). - --export([new/0, is_empty/1, len/1, in/3, in_r/3, out/1, out_r/1, join/2, - foldl/3, foldr/3, from_list/1, to_list/1, map_fold_filter_l/4, - map_fold_filter_r/4]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([bpqueue/0]). - --type(bpqueue() :: {non_neg_integer(), queue()}). --type(prefix() :: any()). --type(value() :: any()). --type(result() :: ({'empty', bpqueue()} | - {{'value', prefix(), value()}, bpqueue()})). - --spec(new/0 :: () -> bpqueue()). --spec(is_empty/1 :: (bpqueue()) -> boolean()). --spec(len/1 :: (bpqueue()) -> non_neg_integer()). --spec(in/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(in_r/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(out/1 :: (bpqueue()) -> result()). --spec(out_r/1 :: (bpqueue()) -> result()). --spec(join/2 :: (bpqueue(), bpqueue()) -> bpqueue()). --spec(foldl/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(foldr/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(from_list/1 :: ([{prefix(), [value()]}]) -> bpqueue()). --spec(to_list/1 :: (bpqueue()) -> [{prefix(), [value()]}]). --spec(map_fold_filter_l/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). --spec(map_fold_filter_r/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> {0, queue:new()}. - -is_empty({0, _Q}) -> true; -is_empty(_BPQ) -> false. - -len({N, _Q}) -> N. - -in(Prefix, Value, {0, Q}) -> - {1, queue:in({Prefix, queue:from_list([Value])}, Q)}; -in(Prefix, Value, BPQ) -> - in1({fun queue:in/2, fun queue:out_r/1}, Prefix, Value, BPQ). - -in_r(Prefix, Value, BPQ = {0, _Q}) -> - in(Prefix, Value, BPQ); -in_r(Prefix, Value, BPQ) -> - in1({fun queue:in_r/2, fun queue:out/1}, Prefix, Value, BPQ). - -in1({In, Out}, Prefix, Value, {N, Q}) -> - {N+1, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, In(Value, InnerQ)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, queue:in(Value, queue:new())}, Q) - end}. - -in_q(Prefix, Queue, BPQ = {0, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - N -> {N, queue:in({Prefix, Queue}, Q)} - end; -in_q(Prefix, Queue, BPQ) -> - in_q1({fun queue:in/2, fun queue:out_r/1, - fun queue:join/2}, - Prefix, Queue, BPQ). - -in_q_r(Prefix, Queue, BPQ = {0, _Q}) -> - in_q(Prefix, Queue, BPQ); -in_q_r(Prefix, Queue, BPQ) -> - in_q1({fun queue:in_r/2, fun queue:out/1, - fun (T, H) -> queue:join(H, T) end}, - Prefix, Queue, BPQ). - -in_q1({In, Out, Join}, Prefix, Queue, BPQ = {N, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - M -> {N + M, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, Join(InnerQ, Queue)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, Queue}, Q) - end} - end. - -out({0, _Q} = BPQ) -> {empty, BPQ}; -out(BPQ) -> out1({fun queue:in_r/2, fun queue:out/1}, BPQ). - -out_r({0, _Q} = BPQ) -> {empty, BPQ}; -out_r(BPQ) -> out1({fun queue:in/2, fun queue:out_r/1}, BPQ). - -out1({In, Out}, {N, Q}) -> - {{value, {Prefix, InnerQ}}, Q1} = Out(Q), - {{value, Value}, InnerQ1} = Out(InnerQ), - Q2 = case queue:is_empty(InnerQ1) of - true -> Q1; - false -> In({Prefix, InnerQ1}, Q1) - end, - {{value, Prefix, Value}, {N-1, Q2}}. - -join({0, _Q}, BPQ) -> - BPQ; -join(BPQ, {0, _Q}) -> - BPQ; -join({NHead, QHead}, {NTail, QTail}) -> - {{value, {Prefix, InnerQHead}}, QHead1} = queue:out_r(QHead), - {NHead + NTail, - case queue:out(QTail) of - {{value, {Prefix, InnerQTail}}, QTail1} -> - queue:join( - queue:in({Prefix, queue:join(InnerQHead, InnerQTail)}, QHead1), - QTail1); - {{value, {_Prefix, _InnerQTail}}, _QTail1} -> - queue:join(QHead, QTail) - end}. - -foldl(_Fun, Init, {0, _Q}) -> Init; -foldl( Fun, Init, {_N, Q}) -> fold1(fun queue:out/1, Fun, Init, Q). - -foldr(_Fun, Init, {0, _Q}) -> Init; -foldr( Fun, Init, {_N, Q}) -> fold1(fun queue:out_r/1, Fun, Init, Q). - -fold1(Out, Fun, Init, Q) -> - case Out(Q) of - {empty, _Q} -> - Init; - {{value, {Prefix, InnerQ}}, Q1} -> - fold1(Out, Fun, fold1(Out, Fun, Prefix, Init, InnerQ), Q1) - end. - -fold1(Out, Fun, Prefix, Init, InnerQ) -> - case Out(InnerQ) of - {empty, _Q} -> - Init; - {{value, Value}, InnerQ1} -> - fold1(Out, Fun, Prefix, Fun(Prefix, Value, Init), InnerQ1) - end. - -from_list(List) -> - {FinalPrefix, FinalInnerQ, ListOfPQs1, Len} = - lists:foldl( - fun ({_Prefix, []}, Acc) -> - Acc; - ({Prefix, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix, queue:join(InnerQ, queue:from_list(InnerList)), - ListOfPQs, LenAcc + length(InnerList)}; - ({Prefix1, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix1, queue:from_list(InnerList), - [{Prefix, InnerQ} | ListOfPQs], LenAcc + length(InnerList)} - end, {undefined, queue:new(), [], 0}, List), - ListOfPQs2 = [{FinalPrefix, FinalInnerQ} | ListOfPQs1], - [{undefined, InnerQ1} | Rest] = All = lists:reverse(ListOfPQs2), - {Len, queue:from_list(case queue:is_empty(InnerQ1) of - true -> Rest; - false -> All - end)}. - -to_list({0, _Q}) -> []; -to_list({_N, Q}) -> [{Prefix, queue:to_list(InnerQ)} || - {Prefix, InnerQ} <- queue:to_list(Q)]. - -%% map_fold_filter_[lr](FilterFun, Fun, Init, BPQ) -> {BPQ, Init} -%% where FilterFun(Prefix) -> boolean() -%% Fun(Value, Init) -> {Prefix, Value, Init} | stop -%% -%% The filter fun allows you to skip very quickly over blocks that -%% you're not interested in. Such blocks appear in the resulting bpq -%% without modification. The Fun is then used both to map the value, -%% which also allows you to change the prefix (and thus block) of the -%% value, and also to modify the Init/Acc (just like a fold). If the -%% Fun returns 'stop' then it is not applied to any further items. -map_fold_filter_l(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_l(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out/1, fun queue:in/2, - fun in_q/3, fun join/2}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter_r(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_r(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out_r/1, fun queue:in_r/2, - fun in_q_r/3, fun (T, H) -> join(H, T) end}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter1(Funs = {Out, _In, InQ, Join}, Len, PFilter, Fun, - Init, Q, QNew) -> - case Out(Q) of - {empty, _Q} -> - {QNew, Init}; - {{value, {Prefix, InnerQ}}, Q1} -> - case PFilter(Prefix) of - true -> - {Init1, QNew1, Cont} = - map_fold_filter2(Funs, Fun, Prefix, Prefix, - Init, InnerQ, QNew, queue:new()), - case Cont of - false -> {Join(QNew1, {Len - len(QNew1), Q1}), Init1}; - true -> map_fold_filter1(Funs, Len, PFilter, Fun, - Init1, Q1, QNew1) - end; - false -> - map_fold_filter1(Funs, Len, PFilter, Fun, - Init, Q1, InQ(Prefix, InnerQ, QNew)) - end - end. - -map_fold_filter2(Funs = {Out, In, InQ, _Join}, Fun, OrigPrefix, Prefix, - Init, InnerQ, QNew, InnerQNew) -> - case Out(InnerQ) of - {empty, _Q} -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), true}; - {{value, Value}, InnerQ1} -> - case Fun(Value, Init) of - stop -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), false}; - {Prefix1, Value1, Init1} -> - {Prefix2, QNew1, InnerQNew1} = - case Prefix1 =:= Prefix of - true -> {Prefix, QNew, In(Value1, InnerQNew)}; - false -> {Prefix1, InQ(Prefix, InnerQNew, QNew), - In(Value1, queue:new())} - end, - map_fold_filter2(Funs, Fun, OrigPrefix, Prefix2, - Init1, InnerQ1, QNew1, InnerQNew1) - end - end. diff --git a/src/delegate.erl b/src/delegate.erl deleted file mode 100644 index 17046201..00000000 --- a/src/delegate.erl +++ /dev/null @@ -1,154 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate). - --behaviour(gen_server2). - --export([start_link/1, invoke_no_result/2, invoke/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: - (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). --spec(invoke_no_result/2 :: - (pid() | [pid()], fun ((pid()) -> any())) -> 'ok'). --spec(invoke/2 :: - ( pid(), fun ((pid()) -> A)) -> A; - ([pid()], fun ((pid()) -> A)) -> {[{pid(), A}], - [{pid(), term()}]}). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(Num) -> - gen_server2:start_link({local, delegate_name(Num)}, ?MODULE, [], []). - -invoke(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - Fun(Pid); -invoke(Pid, Fun) when is_pid(Pid) -> - case invoke([Pid], Fun) of - {[{Pid, Result}], []} -> - Result; - {[], [{Pid, {Class, Reason, StackTrace}}]} -> - erlang:raise(Class, Reason, StackTrace) - end; - -invoke(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - %% The use of multi_call is only safe because the timeout is - %% infinity, and thus there is no process spawned in order to do - %% the sending. Thus calls can't overtake preceding calls/casts. - {Replies, BadNodes} = - case orddict:fetch_keys(Grouped) of - [] -> {[], []}; - RemoteNodes -> gen_server2:multi_call( - RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}, infinity) - end, - BadPids = [{Pid, {exit, {nodedown, BadNode}, []}} || - BadNode <- BadNodes, - Pid <- orddict:fetch(BadNode, Grouped)], - ResultsNoNode = lists:append([safe_invoke(LocalPids, Fun) | - [Results || {_Node, Results} <- Replies]]), - lists:foldl( - fun ({ok, Pid, Result}, {Good, Bad}) -> {[{Pid, Result} | Good], Bad}; - ({error, Pid, Error}, {Good, Bad}) -> {Good, [{Pid, Error} | Bad]} - end, {[], BadPids}, ResultsNoNode). - -invoke_no_result(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - safe_invoke(Pid, Fun), %% we don't care about any error - ok; -invoke_no_result(Pid, Fun) when is_pid(Pid) -> - invoke_no_result([Pid], Fun); - -invoke_no_result(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - case orddict:fetch_keys(Grouped) of - [] -> ok; - RemoteNodes -> gen_server2:abcast(RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}) - end, - safe_invoke(LocalPids, Fun), %% must not die - ok. - -%%---------------------------------------------------------------------------- - -group_pids_by_node(Pids) -> - LocalNode = node(), - lists:foldl( - fun (Pid, {Local, Remote}) when node(Pid) =:= LocalNode -> - {[Pid | Local], Remote}; - (Pid, {Local, Remote}) -> - {Local, - orddict:update( - node(Pid), fun (List) -> [Pid | List] end, [Pid], Remote)} - end, {[], orddict:new()}, Pids). - -delegate_name(Hash) -> - list_to_atom("delegate_" ++ integer_to_list(Hash)). - -delegate(RemoteNodes) -> - case get(delegate) of - undefined -> Name = delegate_name( - erlang:phash2(self(), - delegate_sup:count(RemoteNodes))), - put(delegate, Name), - Name; - Name -> Name - end. - -safe_invoke(Pids, Fun) when is_list(Pids) -> - [safe_invoke(Pid, Fun) || Pid <- Pids]; -safe_invoke(Pid, Fun) when is_pid(Pid) -> - try - {ok, Pid, Fun(Pid)} - catch Class:Reason -> - {error, Pid, {Class, Reason, erlang:get_stacktrace()}} - end. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, node(), hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({invoke, Fun, Grouped}, _From, Node) -> - {reply, safe_invoke(orddict:fetch(Node, Grouped), Fun), Node, hibernate}. - -handle_cast({invoke, Fun, Grouped}, Node) -> - safe_invoke(orddict:fetch(Node, Grouped), Fun), - {noreply, Node, hibernate}. - -handle_info(_Info, Node) -> - {noreply, Node, hibernate}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, Node, _Extra) -> - {ok, Node}. diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl deleted file mode 100644 index fc693c7d..00000000 --- a/src/delegate_sup.erl +++ /dev/null @@ -1,59 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate_sup). - --behaviour(supervisor). - --export([start_link/1, count/1]). - --export([init/1]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (integer()) -> {'ok', pid()} | {'error', any()}). --spec(count/1 :: ([node()]) -> integer()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Count) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [Count]). - -count([]) -> - 1; -count([Node | Nodes]) -> - try - length(supervisor:which_children({?SERVER, Node})) - catch exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - count(Nodes); - exit:{R, _} when R =:= noproc; R =:= normal; R =:= shutdown; - R =:= nodedown -> - count(Nodes) - end. - -%%---------------------------------------------------------------------------- - -init([Count]) -> - {ok, {{one_for_one, 10, 10}, - [{Num, {delegate, start_link, [Num]}, - transient, 16#ffffffff, worker, [delegate]} || - Num <- lists:seq(0, Count - 1)]}}. diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl deleted file mode 100644 index 61b08d49..00000000 --- a/src/file_handle_cache.erl +++ /dev/null @@ -1,1197 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(file_handle_cache). - -%% A File Handle Cache -%% -%% This extends a subset of the functionality of the Erlang file -%% module. In the below, we use "file handle" to specifically refer to -%% file handles, and "file descriptor" to refer to descriptors which -%% are not file handles, e.g. sockets. -%% -%% Some constraints -%% 1) This supports one writer, multiple readers per file. Nothing -%% else. -%% 2) Do not open the same file from different processes. Bad things -%% may happen, especially for writes. -%% 3) Writes are all appends. You cannot write to the middle of a -%% file, although you can truncate and then append if you want. -%% 4) Although there is a write buffer, there is no read buffer. Feel -%% free to use the read_ahead mode, but beware of the interaction -%% between that buffer and the write buffer. -%% -%% Some benefits -%% 1) You do not have to remember to call sync before close -%% 2) Buffering is much more flexible than with the plain file module, -%% and you can control when the buffer gets flushed out. This means -%% that you can rely on reads-after-writes working, without having to -%% call the expensive sync. -%% 3) Unnecessary calls to position and sync get optimised out. -%% 4) You can find out what your 'real' offset is, and what your -%% 'virtual' offset is (i.e. where the hdl really is, and where it -%% would be after the write buffer is written out). -%% 5) You can find out what the offset was when you last sync'd. -%% -%% There is also a server component which serves to limit the number -%% of open file descriptors. This is a hard limit: the server -%% component will ensure that clients do not have more file -%% descriptors open than it's configured to allow. -%% -%% On open, the client requests permission from the server to open the -%% required number of file handles. The server may ask the client to -%% close other file handles that it has open, or it may queue the -%% request and ask other clients to close file handles they have open -%% in order to satisfy the request. Requests are always satisfied in -%% the order they arrive, even if a latter request (for a small number -%% of file handles) can be satisfied before an earlier request (for a -%% larger number of file handles). On close, the client sends a -%% message to the server. These messages allow the server to keep -%% track of the number of open handles. The client also keeps a -%% gb_tree which is updated on every use of a file handle, mapping the -%% time at which the file handle was last used (timestamp) to the -%% handle. Thus the smallest key in this tree maps to the file handle -%% that has not been used for the longest amount of time. This -%% smallest key is included in the messages to the server. As such, -%% the server keeps track of when the least recently used file handle -%% was used *at the point of the most recent open or close* by each -%% client. -%% -%% Note that this data can go very out of date, by the client using -%% the least recently used handle. -%% -%% When the limit is exceeded (i.e. the number of open file handles is -%% at the limit and there are pending 'open' requests), the server -%% calculates the average age of the last reported least recently used -%% file handle of all the clients. It then tells all the clients to -%% close any handles not used for longer than this average, by -%% invoking the callback the client registered. The client should -%% receive this message and pass it into -%% set_maximum_since_use/1. However, it is highly possible this age -%% will be greater than the ages of all the handles the client knows -%% of because the client has used its file handles in the mean -%% time. Thus at this point the client reports to the server the -%% current timestamp at which its least recently used file handle was -%% last used. The server will check two seconds later that either it -%% is back under the limit, in which case all is well again, or if -%% not, it will calculate a new average age. Its data will be much -%% more recent now, and so it is very likely that when this is -%% communicated to the clients, the clients will close file handles. -%% (In extreme cases, where it's very likely that all clients have -%% used their open handles since they last sent in an update, which -%% would mean that the average will never cause any file handles to -%% be closed, the server can send out an average age of 0, resulting -%% in all available clients closing all their file handles.) -%% -%% Care is taken to ensure that (a) processes which are blocked -%% waiting for file descriptors to become available are not sent -%% requests to close file handles; and (b) given it is known how many -%% file handles a process has open, when the average age is forced to -%% 0, close messages are only sent to enough processes to release the -%% correct number of file handles and the list of processes is -%% randomly shuffled. This ensures we don't cause processes to -%% needlessly close file handles, and ensures that we don't always -%% make such requests of the same processes. -%% -%% The advantage of this scheme is that there is only communication -%% from the client to the server on open, close, and when in the -%% process of trying to reduce file handle usage. There is no -%% communication from the client to the server on normal file handle -%% operations. This scheme forms a feed-back loop - the server does -%% not care which file handles are closed, just that some are, and it -%% checks this repeatedly when over the limit. -%% -%% Handles which are closed as a result of the server are put into a -%% "soft-closed" state in which the handle is closed (data flushed out -%% and sync'd first) but the state is maintained. The handle will be -%% fully reopened again as soon as needed, thus users of this library -%% do not need to worry about their handles being closed by the server -%% - reopening them when necessary is handled transparently. -%% -%% The server also supports obtain and transfer. obtain/0 blocks until -%% a file descriptor is available, at which point the requesting -%% process is considered to 'own' one more descriptor. transfer/1 -%% transfers ownership of a file descriptor between processes. It is -%% non-blocking. Obtain is used to obtain permission to accept file -%% descriptors. Obtain has a lower limit, set by the ?OBTAIN_LIMIT/1 -%% macro. File handles can use the entire limit, but will be evicted -%% by obtain calls up to the point at which no more obtain calls can -%% be satisfied by the obtains limit. Thus there will always be some -%% capacity available for file handles. Processes that use obtain are -%% never asked to return them, and they are not managed in any way by -%% the server. It is simply a mechanism to ensure that processes that -%% need file descriptors such as sockets can do so in such a way that -%% the overall number of open file descriptors is managed. -%% -%% The callers of register_callback/3, obtain/0, and the argument of -%% transfer/1 are monitored, reducing the count of handles in use -%% appropriately when the processes terminate. - --behaviour(gen_server). - --export([register_callback/3]). --export([open/3, close/1, read/2, append/2, sync/1, position/2, truncate/1, - last_sync_offset/1, current_virtual_offset/1, current_raw_offset/1, - flush/1, copy/3, set_maximum_since_use/1, delete/1, clear/1]). --export([obtain/0, transfer/1, set_limit/1, get_limit/0, info_keys/0, info/0, - info/1]). --export([ulimit/0]). - --export([start_link/0, init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). --define(RESERVED_FOR_OTHERS, 100). - --define(FILE_HANDLES_LIMIT_OTHER, 1024). --define(FILE_HANDLES_CHECK_INTERVAL, 2000). - --define(OBTAIN_LIMIT(LIMIT), trunc((LIMIT * 0.9) - 2)). --define(CLIENT_ETS_TABLE, ?MODULE). - -%%---------------------------------------------------------------------------- - --record(file, - { reader_count, - has_writer - }). - --record(handle, - { hdl, - offset, - trusted_offset, - is_dirty, - write_buffer_size, - write_buffer_size_limit, - write_buffer, - at_eof, - path, - mode, - options, - is_write, - is_read, - last_used_at - }). - --record(fhc_state, - { elders, - limit, - open_count, - open_pending, - obtain_limit, - obtain_count, - obtain_pending, - clients, - timer_ref - }). - --record(cstate, - { pid, - callback, - opened, - obtained, - blocked, - pending_closes - }). - --record(pending, - { kind, - pid, - requested, - from - }). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(ref() :: any()). --type(ok_or_error() :: 'ok' | {'error', any()}). --type(val_or_error(T) :: {'ok', T} | {'error', any()}). --type(position() :: ('bof' | 'eof' | non_neg_integer() | - {('bof' |'eof'), non_neg_integer()} | - {'cur', integer()})). --type(offset() :: non_neg_integer()). - --spec(register_callback/3 :: (atom(), atom(), [any()]) -> 'ok'). --spec(open/3 :: - (string(), [any()], - [{'write_buffer', (non_neg_integer() | 'infinity' | 'unbuffered')}]) - -> val_or_error(ref())). --spec(close/1 :: (ref()) -> ok_or_error()). --spec(read/2 :: (ref(), non_neg_integer()) -> - val_or_error([char()] | binary()) | 'eof'). --spec(append/2 :: (ref(), iodata()) -> ok_or_error()). --spec(sync/1 :: (ref()) -> ok_or_error()). --spec(position/2 :: (ref(), position()) -> val_or_error(offset())). --spec(truncate/1 :: (ref()) -> ok_or_error()). --spec(last_sync_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_virtual_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_raw_offset/1 :: (ref()) -> val_or_error(offset())). --spec(flush/1 :: (ref()) -> ok_or_error()). --spec(copy/3 :: (ref(), ref(), non_neg_integer()) -> - val_or_error(non_neg_integer())). --spec(set_maximum_since_use/1 :: (non_neg_integer()) -> 'ok'). --spec(delete/1 :: (ref()) -> ok_or_error()). --spec(clear/1 :: (ref()) -> ok_or_error()). --spec(obtain/0 :: () -> 'ok'). --spec(transfer/1 :: (pid()) -> 'ok'). --spec(set_limit/1 :: (non_neg_integer()) -> 'ok'). --spec(get_limit/0 :: () -> non_neg_integer()). --spec(info_keys/0 :: () -> [atom()]). --spec(info/0 :: () -> [{atom(), any()}]). --spec(info/1 :: ([atom()]) -> [{atom(), any()}]). --spec(ulimit/0 :: () -> 'infinity' | 'unknown' | non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- --define(INFO_KEYS, [obtain_count, obtain_limit]). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], [{timeout, infinity}]). - -register_callback(M, F, A) - when is_atom(M) andalso is_atom(F) andalso is_list(A) -> - gen_server:cast(?SERVER, {register_callback, self(), {M, F, A}}). - -open(Path, Mode, Options) -> - Path1 = filename:absname(Path), - File1 = #file { reader_count = RCount, has_writer = HasWriter } = - case get({Path1, fhc_file}) of - File = #file {} -> File; - undefined -> #file { reader_count = 0, - has_writer = false } - end, - Mode1 = append_to_write(Mode), - IsWriter = is_writer(Mode1), - case IsWriter andalso HasWriter of - true -> {error, writer_exists}; - false -> {ok, Ref} = new_closed_handle(Path1, Mode1, Options), - case get_or_reopen([{Ref, new}]) of - {ok, [_Handle1]} -> - RCount1 = case is_reader(Mode1) of - true -> RCount + 1; - false -> RCount - end, - HasWriter1 = HasWriter orelse IsWriter, - put({Path1, fhc_file}, - File1 #file { reader_count = RCount1, - has_writer = HasWriter1 }), - {ok, Ref}; - Error -> - erase({Ref, fhc_handle}), - Error - end - end. - -close(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> ok; - Handle -> case hard_close(Handle) of - ok -> ok; - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -read(Ref, Count) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_read = false }]) -> - {error, not_open_for_reading}; - ([Handle = #handle { hdl = Hdl, offset = Offset }]) -> - case file:read(Hdl, Count) of - {ok, Data} = Obj -> Offset1 = Offset + iolist_size(Data), - {Obj, - [Handle #handle { offset = Offset1 }]}; - eof -> {eof, [Handle #handle { at_eof = true }]}; - Error -> {Error, [Handle]} - end - end). - -append(Ref, Data) -> - with_handles( - [Ref], - fun ([#handle { is_write = false }]) -> - {error, not_open_for_writing}; - ([Handle]) -> - case maybe_seek(eof, Handle) of - {{ok, _Offset}, #handle { hdl = Hdl, offset = Offset, - write_buffer_size_limit = 0, - at_eof = true } = Handle1} -> - Offset1 = Offset + iolist_size(Data), - {file:write(Hdl, Data), - [Handle1 #handle { is_dirty = true, offset = Offset1 }]}; - {{ok, _Offset}, #handle { write_buffer = WriteBuffer, - write_buffer_size = Size, - write_buffer_size_limit = Limit, - at_eof = true } = Handle1} -> - WriteBuffer1 = [Data | WriteBuffer], - Size1 = Size + iolist_size(Data), - Handle2 = Handle1 #handle { write_buffer = WriteBuffer1, - write_buffer_size = Size1 }, - case Limit =/= infinity andalso Size1 > Limit of - true -> {Result, Handle3} = write_buffer(Handle2), - {Result, [Handle3]}; - false -> {ok, [Handle2]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -sync(Ref) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_dirty = false, write_buffer = [] }]) -> - ok; - ([Handle = #handle { hdl = Hdl, offset = Offset, - is_dirty = true, write_buffer = [] }]) -> - case file:sync(Hdl) of - ok -> {ok, [Handle #handle { trusted_offset = Offset, - is_dirty = false }]}; - Error -> {Error, [Handle]} - end - end). - -position(Ref, NewOffset) -> - with_flushed_handles( - [Ref], - fun ([Handle]) -> {Result, Handle1} = maybe_seek(NewOffset, Handle), - {Result, [Handle1]} - end). - -truncate(Ref) -> - with_flushed_handles( - [Ref], - fun ([Handle1 = #handle { hdl = Hdl, offset = Offset, - trusted_offset = TOffset }]) -> - case file:truncate(Hdl) of - ok -> TOffset1 = lists:min([Offset, TOffset]), - {ok, [Handle1 #handle { trusted_offset = TOffset1, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end - end). - -last_sync_offset(Ref) -> - with_handles([Ref], fun ([#handle { trusted_offset = TOffset }]) -> - {ok, TOffset} - end). - -current_virtual_offset(Ref) -> - with_handles([Ref], fun ([#handle { at_eof = true, is_write = true, - offset = Offset, - write_buffer_size = Size }]) -> - {ok, Offset + Size}; - ([#handle { offset = Offset }]) -> - {ok, Offset} - end). - -current_raw_offset(Ref) -> - with_handles([Ref], fun ([Handle]) -> {ok, Handle #handle.offset} end). - -flush(Ref) -> - with_flushed_handles([Ref], fun ([Handle]) -> {ok, [Handle]} end). - -copy(Src, Dest, Count) -> - with_flushed_handles( - [Src, Dest], - fun ([SHandle = #handle { is_read = true, hdl = SHdl, offset = SOffset }, - DHandle = #handle { is_write = true, hdl = DHdl, offset = DOffset }] - ) -> - case file:copy(SHdl, DHdl, Count) of - {ok, Count1} = Result1 -> - {Result1, - [SHandle #handle { offset = SOffset + Count1 }, - DHandle #handle { offset = DOffset + Count1, - is_dirty = true }]}; - Error -> - {Error, [SHandle, DHandle]} - end; - (_Handles) -> - {error, incorrect_handle_modes} - end). - -delete(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> - ok; - Handle = #handle { path = Path } -> - case hard_close(Handle #handle { is_dirty = false, - write_buffer = [] }) of - ok -> file:delete(Path); - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -clear(Ref) -> - with_handles( - [Ref], - fun ([#handle { at_eof = true, write_buffer_size = 0, offset = 0 }]) -> - ok; - ([Handle]) -> - case maybe_seek(bof, Handle #handle { write_buffer = [], - write_buffer_size = 0 }) of - {{ok, 0}, Handle1 = #handle { hdl = Hdl }} -> - case file:truncate(Hdl) of - ok -> {ok, [Handle1 #handle {trusted_offset = 0, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -set_maximum_since_use(MaximumAge) -> - Now = now(), - case lists:foldl( - fun ({{Ref, fhc_handle}, - Handle = #handle { hdl = Hdl, last_used_at = Then }}, Rep) -> - case Hdl =/= closed andalso - timer:now_diff(Now, Then) >= MaximumAge of - true -> soft_close(Ref, Handle) orelse Rep; - false -> Rep - end; - (_KeyValuePair, Rep) -> - Rep - end, false, get()) of - false -> age_tree_change(), ok; - true -> ok - end. - -obtain() -> - gen_server:call(?SERVER, {obtain, self()}, infinity). - -transfer(Pid) -> - gen_server:cast(?SERVER, {transfer, self(), Pid}). - -set_limit(Limit) -> - gen_server:call(?SERVER, {set_limit, Limit}, infinity). - -get_limit() -> - gen_server:call(?SERVER, get_limit, infinity). - -info_keys() -> ?INFO_KEYS. - -info() -> info(?INFO_KEYS). -info(Items) -> gen_server:call(?SERVER, {info, Items}, infinity). - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -is_reader(Mode) -> lists:member(read, Mode). - -is_writer(Mode) -> lists:member(write, Mode). - -append_to_write(Mode) -> - case lists:member(append, Mode) of - true -> [write | Mode -- [append, write]]; - false -> Mode - end. - -with_handles(Refs, Fun) -> - case get_or_reopen([{Ref, reopen} || Ref <- Refs]) of - {ok, Handles} -> - case Fun(Handles) of - {Result, Handles1} when is_list(Handles1) -> - lists:zipwith(fun put_handle/2, Refs, Handles1), - Result; - Result -> - Result - end; - Error -> - Error - end. - -with_flushed_handles(Refs, Fun) -> - with_handles( - Refs, - fun (Handles) -> - case lists:foldl( - fun (Handle, {ok, HandlesAcc}) -> - {Res, Handle1} = write_buffer(Handle), - {Res, [Handle1 | HandlesAcc]}; - (Handle, {Error, HandlesAcc}) -> - {Error, [Handle | HandlesAcc]} - end, {ok, []}, Handles) of - {ok, Handles1} -> - Fun(lists:reverse(Handles1)); - {Error, Handles1} -> - {Error, lists:reverse(Handles1)} - end - end). - -get_or_reopen(RefNewOrReopens) -> - case partition_handles(RefNewOrReopens) of - {OpenHdls, []} -> - {ok, [Handle || {_Ref, Handle} <- OpenHdls]}; - {OpenHdls, ClosedHdls} -> - Oldest = oldest(get_age_tree(), fun () -> now() end), - case gen_server:call(?SERVER, {open, self(), length(ClosedHdls), - Oldest}, infinity) of - ok -> - case reopen(ClosedHdls) of - {ok, RefHdls} -> sort_handles(RefNewOrReopens, - OpenHdls, RefHdls, []); - Error -> Error - end; - close -> - [soft_close(Ref, Handle) || - {{Ref, fhc_handle}, Handle = #handle { hdl = Hdl }} <- - get(), - Hdl =/= closed], - get_or_reopen(RefNewOrReopens) - end - end. - -reopen(ClosedHdls) -> reopen(ClosedHdls, get_age_tree(), []). - -reopen([], Tree, RefHdls) -> - put_age_tree(Tree), - {ok, lists:reverse(RefHdls)}; -reopen([{Ref, NewOrReopen, Handle = #handle { hdl = closed, - path = Path, - mode = Mode, - offset = Offset, - last_used_at = undefined }} | - RefNewOrReopenHdls] = ToOpen, Tree, RefHdls) -> - case file:open(Path, case NewOrReopen of - new -> Mode; - reopen -> [read | Mode] - end) of - {ok, Hdl} -> - Now = now(), - {{ok, Offset1}, Handle1} = - maybe_seek(Offset, Handle #handle { hdl = Hdl, - offset = 0, - last_used_at = Now }), - Handle2 = Handle1 #handle { trusted_offset = Offset1 }, - put({Ref, fhc_handle}, Handle2), - reopen(RefNewOrReopenHdls, gb_trees:insert(Now, Ref, Tree), - [{Ref, Handle2} | RefHdls]); - Error -> - %% NB: none of the handles in ToOpen are in the age tree - Oldest = oldest(Tree, fun () -> undefined end), - [gen_server:cast(?SERVER, {close, self(), Oldest}) || _ <- ToOpen], - put_age_tree(Tree), - Error - end. - -partition_handles(RefNewOrReopens) -> - lists:foldr( - fun ({Ref, NewOrReopen}, {Open, Closed}) -> - case get({Ref, fhc_handle}) of - #handle { hdl = closed } = Handle -> - {Open, [{Ref, NewOrReopen, Handle} | Closed]}; - #handle {} = Handle -> - {[{Ref, Handle} | Open], Closed} - end - end, {[], []}, RefNewOrReopens). - -sort_handles([], [], [], Acc) -> - {ok, lists:reverse(Acc)}; -sort_handles([{Ref, _} | RefHdls], [{Ref, Handle} | RefHdlsA], RefHdlsB, Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]); -sort_handles([{Ref, _} | RefHdls], RefHdlsA, [{Ref, Handle} | RefHdlsB], Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]). - -put_handle(Ref, Handle = #handle { last_used_at = Then }) -> - Now = now(), - age_tree_update(Then, Now, Ref), - put({Ref, fhc_handle}, Handle #handle { last_used_at = Now }). - -with_age_tree(Fun) -> put_age_tree(Fun(get_age_tree())). - -get_age_tree() -> - case get(fhc_age_tree) of - undefined -> gb_trees:empty(); - AgeTree -> AgeTree - end. - -put_age_tree(Tree) -> put(fhc_age_tree, Tree). - -age_tree_update(Then, Now, Ref) -> - with_age_tree( - fun (Tree) -> - gb_trees:insert(Now, Ref, gb_trees:delete_any(Then, Tree)) - end). - -age_tree_delete(Then) -> - with_age_tree( - fun (Tree) -> - Tree1 = gb_trees:delete_any(Then, Tree), - Oldest = oldest(Tree1, fun () -> undefined end), - gen_server:cast(?SERVER, {close, self(), Oldest}), - Tree1 - end). - -age_tree_change() -> - with_age_tree( - fun (Tree) -> - case gb_trees:is_empty(Tree) of - true -> Tree; - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - gen_server:cast(?SERVER, {update, self(), Oldest}) - end, - Tree - end). - -oldest(Tree, DefaultFun) -> - case gb_trees:is_empty(Tree) of - true -> DefaultFun(); - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - Oldest - end. - -new_closed_handle(Path, Mode, Options) -> - WriteBufferSize = - case proplists:get_value(write_buffer, Options, unbuffered) of - unbuffered -> 0; - infinity -> infinity; - N when is_integer(N) -> N - end, - Ref = make_ref(), - put({Ref, fhc_handle}, #handle { hdl = closed, - offset = 0, - trusted_offset = 0, - is_dirty = false, - write_buffer_size = 0, - write_buffer_size_limit = WriteBufferSize, - write_buffer = [], - at_eof = false, - path = Path, - mode = Mode, - options = Options, - is_write = is_writer(Mode), - is_read = is_reader(Mode), - last_used_at = undefined }), - {ok, Ref}. - -soft_close(Ref, Handle) -> - {Res, Handle1} = soft_close(Handle), - case Res of - ok -> put({Ref, fhc_handle}, Handle1), - true; - _ -> put_handle(Ref, Handle1), - false - end. - -soft_close(Handle = #handle { hdl = closed }) -> - {ok, Handle}; -soft_close(Handle) -> - case write_buffer(Handle) of - {ok, #handle { hdl = Hdl, - offset = Offset, - is_dirty = IsDirty, - last_used_at = Then } = Handle1 } -> - ok = case IsDirty of - true -> file:sync(Hdl); - false -> ok - end, - ok = file:close(Hdl), - age_tree_delete(Then), - {ok, Handle1 #handle { hdl = closed, - trusted_offset = Offset, - is_dirty = false, - last_used_at = undefined }}; - {_Error, _Handle} = Result -> - Result - end. - -hard_close(Handle) -> - case soft_close(Handle) of - {ok, #handle { path = Path, - is_read = IsReader, is_write = IsWriter }} -> - #file { reader_count = RCount, has_writer = HasWriter } = File = - get({Path, fhc_file}), - RCount1 = case IsReader of - true -> RCount - 1; - false -> RCount - end, - HasWriter1 = HasWriter andalso not IsWriter, - case RCount1 =:= 0 andalso not HasWriter1 of - true -> erase({Path, fhc_file}); - false -> put({Path, fhc_file}, - File #file { reader_count = RCount1, - has_writer = HasWriter1 }) - end, - ok; - {_Error, _Handle} = Result -> - Result - end. - -maybe_seek(NewOffset, Handle = #handle { hdl = Hdl, offset = Offset, - at_eof = AtEoF }) -> - {AtEoF1, NeedsSeek} = needs_seek(AtEoF, Offset, NewOffset), - case (case NeedsSeek of - true -> file:position(Hdl, NewOffset); - false -> {ok, Offset} - end) of - {ok, Offset1} = Result -> - {Result, Handle #handle { offset = Offset1, at_eof = AtEoF1 }}; - {error, _} = Error -> - {Error, Handle} - end. - -needs_seek( AtEoF, _CurOffset, cur ) -> {AtEoF, false}; -needs_seek( AtEoF, _CurOffset, {cur, 0}) -> {AtEoF, false}; -needs_seek( true, _CurOffset, eof ) -> {true , false}; -needs_seek( true, _CurOffset, {eof, 0}) -> {true , false}; -needs_seek( false, _CurOffset, eof ) -> {true , true }; -needs_seek( false, _CurOffset, {eof, 0}) -> {true , true }; -needs_seek( AtEoF, 0, bof ) -> {AtEoF, false}; -needs_seek( AtEoF, 0, {bof, 0}) -> {AtEoF, false}; -needs_seek( AtEoF, CurOffset, CurOffset) -> {AtEoF, false}; -needs_seek( true, CurOffset, {bof, DesiredOffset}) - when DesiredOffset >= CurOffset -> - {true, true}; -needs_seek( true, _CurOffset, {cur, DesiredOffset}) - when DesiredOffset > 0 -> - {true, true}; -needs_seek( true, CurOffset, DesiredOffset) %% same as {bof, DO} - when is_integer(DesiredOffset) andalso DesiredOffset >= CurOffset -> - {true, true}; -%% because we can't really track size, we could well end up at EoF and not know -needs_seek(_AtEoF, _CurOffset, _DesiredOffset) -> - {false, true}. - -write_buffer(Handle = #handle { write_buffer = [] }) -> - {ok, Handle}; -write_buffer(Handle = #handle { hdl = Hdl, offset = Offset, - write_buffer = WriteBuffer, - write_buffer_size = DataSize, - at_eof = true }) -> - case file:write(Hdl, lists:reverse(WriteBuffer)) of - ok -> - Offset1 = Offset + DataSize, - {ok, Handle #handle { offset = Offset1, is_dirty = true, - write_buffer = [], write_buffer_size = 0 }}; - {error, _} = Error -> - {Error, Handle} - end. - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(obtain_count, #fhc_state{obtain_count = Count}) -> Count; -i(obtain_limit, #fhc_state{obtain_limit = Limit}) -> Limit; -i(Item, _) -> throw({bad_argument, Item}). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - Limit = case application:get_env(file_handles_high_watermark) of - {ok, Watermark} when (is_integer(Watermark) andalso - Watermark > 0) -> - Watermark; - _ -> - case ulimit() of - infinity -> infinity; - unknown -> ?FILE_HANDLES_LIMIT_OTHER; - Lim -> lists:max([2, Lim - ?RESERVED_FOR_OTHERS]) - end - end, - ObtainLimit = obtain_limit(Limit), - error_logger:info_msg("Limiting to approx ~p file handles (~p sockets)~n", - [Limit, ObtainLimit]), - Clients = ets:new(?CLIENT_ETS_TABLE, [set, private, {keypos, #cstate.pid}]), - {ok, #fhc_state { elders = dict:new(), - limit = Limit, - open_count = 0, - open_pending = pending_new(), - obtain_limit = ObtainLimit, - obtain_count = 0, - obtain_pending = pending_new(), - clients = Clients, - timer_ref = undefined }}. - -handle_call({open, Pid, Requested, EldestUnusedSince}, From, - State = #fhc_state { open_count = Count, - open_pending = Pending, - elders = Elders, - clients = Clients }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - Item = #pending { kind = open, - pid = Pid, - requested = Requested, - from = From }, - ok = track_client(Pid, Clients), - State1 = State #fhc_state { elders = Elders1 }, - case needs_reduce(State1 #fhc_state { open_count = Count + Requested }) of - true -> case ets:lookup(Clients, Pid) of - [#cstate { opened = 0 }] -> - true = ets:update_element( - Clients, Pid, {#cstate.blocked, true}), - {noreply, - reduce(State1 #fhc_state { - open_pending = pending_in(Item, Pending) })}; - [#cstate { opened = Opened }] -> - true = ets:update_element( - Clients, Pid, - {#cstate.pending_closes, Opened}), - {reply, close, State1} - end; - false -> {noreply, run_pending_item(Item, State1)} - end; - -handle_call({obtain, Pid}, From, State = #fhc_state { obtain_count = Count, - obtain_pending = Pending, - clients = Clients }) -> - ok = track_client(Pid, Clients), - Item = #pending { kind = obtain, pid = Pid, requested = 1, from = From }, - Enqueue = fun () -> - true = ets:update_element(Clients, Pid, - {#cstate.blocked, true}), - State #fhc_state { - obtain_pending = pending_in(Item, Pending) } - end, - {noreply, - case obtain_limit_reached(State) of - true -> Enqueue(); - false -> case needs_reduce(State #fhc_state { - obtain_count = Count + 1 }) of - true -> reduce(Enqueue()); - false -> adjust_alarm( - State, run_pending_item(Item, State)) - end - end}; - -handle_call({set_limit, Limit}, _From, State) -> - {reply, ok, adjust_alarm( - State, maybe_reduce( - process_pending( - State #fhc_state { - limit = Limit, - obtain_limit = obtain_limit(Limit) })))}; - -handle_call(get_limit, _From, State = #fhc_state { limit = Limit }) -> - {reply, Limit, State}; - -handle_call({info, Items}, _From, State) -> - {reply, infos(Items, State), State}. - -handle_cast({register_callback, Pid, MFA}, - State = #fhc_state { clients = Clients }) -> - ok = track_client(Pid, Clients), - true = ets:update_element(Clients, Pid, {#cstate.callback, MFA}), - {noreply, State}; - -handle_cast({update, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - %% don't call maybe_reduce from here otherwise we can create a - %% storm of messages - {noreply, State #fhc_state { elders = Elders1 }}; - -handle_cast({close, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders, clients = Clients }) -> - Elders1 = case EldestUnusedSince of - undefined -> dict:erase(Pid, Elders); - _ -> dict:store(Pid, EldestUnusedSince, Elders) - end, - ets:update_counter(Clients, Pid, {#cstate.pending_closes, -1, 0, 0}), - {noreply, adjust_alarm(State, process_pending( - update_counts(open, Pid, -1, - State #fhc_state { elders = Elders1 })))}; - -handle_cast({transfer, FromPid, ToPid}, State) -> - ok = track_client(ToPid, State#fhc_state.clients), - {noreply, process_pending( - update_counts(obtain, ToPid, +1, - update_counts(obtain, FromPid, -1, State)))}; - -handle_cast(check_counts, State) -> - {noreply, maybe_reduce(State #fhc_state { timer_ref = undefined })}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #fhc_state { elders = Elders, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_pending = ObtainPending, - clients = Clients }) -> - [#cstate { opened = Opened, obtained = Obtained }] = - ets:lookup(Clients, Pid), - true = ets:delete(Clients, Pid), - FilterFun = fun (#pending { pid = Pid1 }) -> Pid1 =/= Pid end, - {noreply, adjust_alarm( - State, - process_pending( - State #fhc_state { - open_count = OpenCount - Opened, - open_pending = filter_pending(FilterFun, OpenPending), - obtain_count = ObtainCount - Obtained, - obtain_pending = filter_pending(FilterFun, ObtainPending), - elders = dict:erase(Pid, Elders) }))}. - -terminate(_Reason, State = #fhc_state { clients = Clients }) -> - ets:delete(Clients), - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% pending queue abstraction helpers -%%---------------------------------------------------------------------------- - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -filter_pending(Fun, {Count, Queue}) -> - {Delta, Queue1} = - queue_fold( - fun (Item = #pending { requested = Requested }, {DeltaN, QueueN}) -> - case Fun(Item) of - true -> {DeltaN, queue:in(Item, QueueN)}; - false -> {DeltaN - Requested, QueueN} - end - end, {0, queue:new()}, Queue), - {Count + Delta, Queue1}. - -pending_new() -> - {0, queue:new()}. - -pending_in(Item = #pending { requested = Requested }, {Count, Queue}) -> - {Count + Requested, queue:in(Item, Queue)}. - -pending_out({0, _Queue} = Pending) -> - {empty, Pending}; -pending_out({N, Queue}) -> - {{value, #pending { requested = Requested }} = Result, Queue1} = - queue:out(Queue), - {Result, {N - Requested, Queue1}}. - -pending_count({Count, _Queue}) -> - Count. - -pending_is_empty({0, _Queue}) -> - true; -pending_is_empty({_N, _Queue}) -> - false. - -%%---------------------------------------------------------------------------- -%% server helpers -%%---------------------------------------------------------------------------- - -obtain_limit(infinity) -> infinity; -obtain_limit(Limit) -> case ?OBTAIN_LIMIT(Limit) of - OLimit when OLimit < 0 -> 0; - OLimit -> OLimit - end. - -obtain_limit_reached(#fhc_state { obtain_limit = Limit, - obtain_count = Count}) -> - Limit =/= infinity andalso Count >= Limit. - -adjust_alarm(OldState, NewState) -> - case {obtain_limit_reached(OldState), obtain_limit_reached(NewState)} of - {false, true} -> alarm_handler:set_alarm({file_descriptor_limit, []}); - {true, false} -> alarm_handler:clear_alarm(file_descriptor_limit); - _ -> ok - end, - NewState. - -process_pending(State = #fhc_state { limit = infinity }) -> - State; -process_pending(State) -> - process_open(process_obtain(State)). - -process_open(State = #fhc_state { limit = Limit, - open_pending = Pending, - open_count = OpenCount, - obtain_count = ObtainCount }) -> - {Pending1, State1} = - process_pending(Pending, Limit - (ObtainCount + OpenCount), State), - State1 #fhc_state { open_pending = Pending1 }. - -process_obtain(State = #fhc_state { limit = Limit, - obtain_pending = Pending, - obtain_limit = ObtainLimit, - obtain_count = ObtainCount, - open_count = OpenCount }) -> - Quota = lists:min([ObtainLimit - ObtainCount, - Limit - (ObtainCount + OpenCount)]), - {Pending1, State1} = process_pending(Pending, Quota, State), - State1 #fhc_state { obtain_pending = Pending1 }. - -process_pending(Pending, Quota, State) when Quota =< 0 -> - {Pending, State}; -process_pending(Pending, Quota, State) -> - case pending_out(Pending) of - {empty, _Pending} -> - {Pending, State}; - {{value, #pending { requested = Requested }}, _Pending1} - when Requested > Quota -> - {Pending, State}; - {{value, #pending { requested = Requested } = Item}, Pending1} -> - process_pending(Pending1, Quota - Requested, - run_pending_item(Item, State)) - end. - -run_pending_item(#pending { kind = Kind, - pid = Pid, - requested = Requested, - from = From }, - State = #fhc_state { clients = Clients }) -> - gen_server:reply(From, ok), - true = ets:update_element(Clients, Pid, {#cstate.blocked, false}), - update_counts(Kind, Pid, Requested, State). - -update_counts(Kind, Pid, Delta, - State = #fhc_state { open_count = OpenCount, - obtain_count = ObtainCount, - clients = Clients }) -> - {OpenDelta, ObtainDelta} = update_counts1(Kind, Pid, Delta, Clients), - State #fhc_state { open_count = OpenCount + OpenDelta, - obtain_count = ObtainCount + ObtainDelta }. - -update_counts1(open, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.opened, Delta}), - {Delta, 0}; -update_counts1(obtain, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.obtained, Delta}), - {0, Delta}. - -maybe_reduce(State) -> - case needs_reduce(State) of - true -> reduce(State); - false -> State - end. - -needs_reduce(#fhc_state { limit = Limit, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_limit = ObtainLimit, - obtain_pending = ObtainPending }) -> - Limit =/= infinity - andalso ((OpenCount + ObtainCount > Limit) - orelse (not pending_is_empty(OpenPending)) - orelse (ObtainCount < ObtainLimit - andalso not pending_is_empty(ObtainPending))). - -reduce(State = #fhc_state { open_pending = OpenPending, - obtain_pending = ObtainPending, - elders = Elders, - clients = Clients, - timer_ref = TRef }) -> - Now = now(), - {CStates, Sum, ClientCount} = - dict:fold(fun (Pid, Eldest, {CStatesAcc, SumAcc, CountAcc} = Accs) -> - [#cstate { pending_closes = PendingCloses, - opened = Opened, - blocked = Blocked } = CState] = - ets:lookup(Clients, Pid), - case Blocked orelse PendingCloses =:= Opened of - true -> Accs; - false -> {[CState | CStatesAcc], - SumAcc + timer:now_diff(Now, Eldest), - CountAcc + 1} - end - end, {[], 0, 0}, Elders), - case CStates of - [] -> ok; - _ -> case (Sum / ClientCount) - - (1000 * ?FILE_HANDLES_CHECK_INTERVAL) of - AverageAge when AverageAge > 0 -> - notify_age(CStates, AverageAge); - _ -> - notify_age0(Clients, CStates, - pending_count(OpenPending) + - pending_count(ObtainPending)) - end - end, - case TRef of - undefined -> {ok, TRef1} = timer:apply_after( - ?FILE_HANDLES_CHECK_INTERVAL, - gen_server, cast, [?SERVER, check_counts]), - State #fhc_state { timer_ref = TRef1 }; - _ -> State - end. - -notify_age(CStates, AverageAge) -> - lists:foreach( - fun (#cstate { callback = undefined }) -> ok; - (#cstate { callback = {M, F, A} }) -> apply(M, F, A ++ [AverageAge]) - end, CStates). - -notify_age0(Clients, CStates, Required) -> - case [CState || CState <- CStates, CState#cstate.callback =/= undefined] of - [] -> ok; - Notifications -> S = random:uniform(length(Notifications)), - {L1, L2} = lists:split(S, Notifications), - notify(Clients, Required, L2 ++ L1) - end. - -notify(_Clients, _Required, []) -> - ok; -notify(_Clients, Required, _Notifications) when Required =< 0 -> - ok; -notify(Clients, Required, [#cstate{ pid = Pid, - callback = {M, F, A}, - opened = Opened } | Notifications]) -> - apply(M, F, A ++ [0]), - ets:update_element(Clients, Pid, {#cstate.pending_closes, Opened}), - notify(Clients, Required - Opened, Notifications). - -track_client(Pid, Clients) -> - case ets:insert_new(Clients, #cstate { pid = Pid, - callback = undefined, - opened = 0, - obtained = 0, - blocked = false, - pending_closes = 0 }) of - true -> _MRef = erlang:monitor(process, Pid), - ok; - false -> ok - end. - - -%% To increase the number of file descriptors: on Windows set ERL_MAX_PORTS -%% environment variable, on Linux set `ulimit -n`. -ulimit() -> - case proplists:get_value(max_fds, erlang:system_info(check_io)) of - MaxFds when is_integer(MaxFds) andalso MaxFds > 1 -> - case os:type() of - {win32, _OsName} -> - %% On Windows max_fds is twice the number of open files: - %% https://github.com/yrashk/erlang/blob/e1282325ed75e52a98d5/erts/emulator/sys/win32/sys.c#L2459-2466 - MaxFds div 2; - _Any -> - %% For other operating systems trust Erlang. - MaxFds - end; - _ -> - unknown - end. diff --git a/src/gatherer.erl b/src/gatherer.erl deleted file mode 100644 index aa43e9a9..00000000 --- a/src/gatherer.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gatherer). - --behaviour(gen_server2). - --export([start_link/0, stop/1, fork/1, finish/1, in/2, out/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(stop/1 :: (pid()) -> 'ok'). --spec(fork/1 :: (pid()) -> 'ok'). --spec(finish/1 :: (pid()) -> 'ok'). --spec(in/2 :: (pid(), any()) -> 'ok'). --spec(out/1 :: (pid()) -> {'value', any()} | 'empty'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - --record(gstate, { forks, values, blocked }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link(?MODULE, [], [{timeout, infinity}]). - -stop(Pid) -> - gen_server2:call(Pid, stop, infinity). - -fork(Pid) -> - gen_server2:call(Pid, fork, infinity). - -finish(Pid) -> - gen_server2:cast(Pid, finish). - -in(Pid, Value) -> - gen_server2:cast(Pid, {in, Value}). - -out(Pid) -> - gen_server2:call(Pid, out, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #gstate { forks = 0, values = queue:new(), blocked = queue:new() }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; - -handle_call(fork, _From, State = #gstate { forks = Forks }) -> - {reply, ok, State #gstate { forks = Forks + 1 }, hibernate}; - -handle_call(out, From, State = #gstate { forks = Forks, - values = Values, - blocked = Blocked }) -> - case queue:out(Values) of - {empty, _} -> - case Forks of - 0 -> {reply, empty, State, hibernate}; - _ -> {noreply, - State #gstate { blocked = queue:in(From, Blocked) }, - hibernate} - end; - {{value, _Value} = V, NewValues} -> - {reply, V, State #gstate { values = NewValues }, hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast(finish, State = #gstate { forks = Forks, blocked = Blocked }) -> - NewForks = Forks - 1, - NewBlocked = case NewForks of - 0 -> [gen_server2:reply(From, empty) || - From <- queue:to_list(Blocked)], - queue:new(); - _ -> Blocked - end, - {noreply, State #gstate { forks = NewForks, blocked = NewBlocked }, - hibernate}; - -handle_cast({in, Value}, State = #gstate { values = Values, - blocked = Blocked }) -> - {noreply, case queue:out(Blocked) of - {empty, _} -> - State #gstate { values = queue:in(Value, Values) }; - {{value, From}, NewBlocked} -> - gen_server2:reply(From, {value, Value}), - State #gstate { blocked = NewBlocked } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. diff --git a/src/gen_server2.erl b/src/gen_server2.erl deleted file mode 100644 index 43e0a8f5..00000000 --- a/src/gen_server2.erl +++ /dev/null @@ -1,1177 +0,0 @@ -%% This file is a copy of gen_server.erl from the R13B-1 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is gen_server2 -%% -%% 2) more efficient handling of selective receives in callbacks -%% gen_server2 processes drain their message queue into an internal -%% buffer before invoking any callback module functions. Messages are -%% dequeued from the buffer for processing. Thus the effective message -%% queue of a gen_server2 process is the concatenation of the internal -%% buffer and the real message queue. -%% As a result of the draining, any selective receive invoked inside a -%% callback is less likely to have to scan a large message queue. -%% -%% 3) gen_server2:cast is guaranteed to be order-preserving -%% The original code could reorder messages when communicating with a -%% process on a remote node that was not currently connected. -%% -%% 4) The callback module can optionally implement prioritise_call/3, -%% prioritise_cast/2 and prioritise_info/2. These functions take -%% Message, From and State or just Message and State and return a -%% single integer representing the priority attached to the message. -%% Messages with higher priorities are processed before requests with -%% lower priorities. The default priority is 0. -%% -%% 5) The callback module can optionally implement -%% handle_pre_hibernate/1 and handle_post_hibernate/1. These will be -%% called immediately prior to and post hibernation, respectively. If -%% handle_pre_hibernate returns {hibernate, NewState} then the process -%% will hibernate. If the module does not implement -%% handle_pre_hibernate/1 then the default action is to hibernate. -%% -%% 6) init can return a 4th arg, {backoff, InitialTimeout, -%% MinimumTimeout, DesiredHibernatePeriod} (all in -%% milliseconds). Then, on all callbacks which can return a timeout -%% (including init), timeout can be 'hibernate'. When this is the -%% case, the current timeout value will be used (initially, the -%% InitialTimeout supplied from init). After this timeout has -%% occurred, hibernation will occur as normal. Upon awaking, a new -%% current timeout value will be calculated. -%% -%% The purpose is that the gen_server2 takes care of adjusting the -%% current timeout value such that the process will increase the -%% timeout value repeatedly if it is unable to sleep for the -%% DesiredHibernatePeriod. If it is able to sleep for the -%% DesiredHibernatePeriod it will decrease the current timeout down to -%% the MinimumTimeout, so that the process is put to sleep sooner (and -%% hopefully stays asleep for longer). In short, should a process -%% using this receive a burst of messages, it should not hibernate -%% between those messages, but as the messages become less frequent, -%% the process will not only hibernate, it will do so sooner after -%% each message. -%% -%% When using this backoff mechanism, normal timeout values (i.e. not -%% 'hibernate') can still be used, and if they are used then the -%% handle_info(timeout, State) will be called as normal. In this case, -%% returning 'hibernate' from handle_info(timeout, State) will not -%% hibernate the process immediately, as it would if backoff wasn't -%% being used. Instead it'll wait for the current timeout as described -%% above. -%% -%% 7) The callback module can return from any of the handle_* -%% functions, a {become, Module, State} triple, or a {become, Module, -%% State, Timeout} quadruple. This allows the gen_server to -%% dynamically change the callback module. The State is the new state -%% which will be passed into any of the callback functions in the new -%% module. Note there is no form also encompassing a reply, thus if -%% you wish to reply in handle_call/3 and change the callback module, -%% you need to use gen_server2:reply/2 to issue the reply manually. - -%% All modifications are (C) 2009-2011 VMware, Inc. - -%% ``The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved via the world wide web at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. -%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings -%% AB. All Rights Reserved.'' -%% -%% $Id$ -%% --module(gen_server2). - -%%% --------------------------------------------------- -%%% -%%% The idea behind THIS server is that the user module -%%% provides (different) functions to handle different -%%% kind of inputs. -%%% If the Parent process terminates the Module:terminate/2 -%%% function is called. -%%% -%%% The user module should export: -%%% -%%% init(Args) -%%% ==> {ok, State} -%%% {ok, State, Timeout} -%%% {ok, State, Timeout, Backoff} -%%% ignore -%%% {stop, Reason} -%%% -%%% handle_call(Msg, {From, Tag}, State) -%%% -%%% ==> {reply, Reply, State} -%%% {reply, Reply, State, Timeout} -%%% {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, Reply, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_cast(Msg, State) -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_info(Info, State) Info is e.g. {'EXIT', P, R}, {nodedown, N}, ... -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% terminate(Reason, State) Let the user module clean up -%%% always called when server terminates -%%% -%%% ==> ok -%%% -%%% handle_pre_hibernate(State) -%%% -%%% ==> {hibernate, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% handle_post_hibernate(State) -%%% -%%% ==> {noreply, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% The work flow (of the server) can be described as follows: -%%% -%%% User module Generic -%%% ----------- ------- -%%% start -----> start -%%% init <----- . -%%% -%%% loop -%%% handle_call <----- . -%%% -----> reply -%%% -%%% handle_cast <----- . -%%% -%%% handle_info <----- . -%%% -%%% terminate <----- . -%%% -%%% -----> reply -%%% -%%% -%%% --------------------------------------------------- - -%% API --export([start/3, start/4, - start_link/3, start_link/4, - call/2, call/3, - cast/2, reply/2, - abcast/2, abcast/3, - multi_call/2, multi_call/3, multi_call/4, - enter_loop/3, enter_loop/4, enter_loop/5, enter_loop/6, wake_hib/1]). - --export([behaviour_info/1]). - -%% System exports --export([system_continue/3, - system_terminate/4, - system_code_change/4, - format_status/2]). - -%% Internal exports --export([init_it/6]). - --import(error_logger, [format/2]). - -%% State record --record(gs2_state, {parent, name, state, mod, time, - timeout_state, queue, debug, prioritise_call, - prioritise_cast, prioritise_info}). - -%%%========================================================================= -%%% Specs. These exist only to shut up dialyzer's warnings -%%%========================================================================= - --ifdef(use_specs). - --type(gs2_state() :: #gs2_state{}). - --spec(handle_common_termination/3 :: - (any(), atom(), gs2_state()) -> no_return()). --spec(hibernate/1 :: (gs2_state()) -> no_return()). --spec(pre_hibernate/1 :: (gs2_state()) -> no_return()). --spec(system_terminate/4 :: (_, _, _, gs2_state()) -> no_return()). - --endif. - -%%%========================================================================= -%%% API -%%%========================================================================= - -behaviour_info(callbacks) -> - [{init,1},{handle_call,3},{handle_cast,2},{handle_info,2}, - {terminate,2},{code_change,3}]; -behaviour_info(_Other) -> - undefined. - -%%% ----------------------------------------------------------------- -%%% Starts a generic server. -%%% start(Mod, Args, Options) -%%% start(Name, Mod, Args, Options) -%%% start_link(Mod, Args, Options) -%%% start_link(Name, Mod, Args, Options) where: -%%% Name ::= {local, atom()} | {global, atom()} -%%% Mod ::= atom(), callback module implementing the 'real' server -%%% Args ::= term(), init arguments (to Mod:init/1) -%%% Options ::= [{timeout, Timeout} | {debug, [Flag]}] -%%% Flag ::= trace | log | {logfile, File} | statistics | debug -%%% (debug == log && statistics) -%%% Returns: {ok, Pid} | -%%% {error, {already_started, Pid}} | -%%% {error, Reason} -%%% ----------------------------------------------------------------- -start(Mod, Args, Options) -> - gen:start(?MODULE, nolink, Mod, Args, Options). - -start(Name, Mod, Args, Options) -> - gen:start(?MODULE, nolink, Name, Mod, Args, Options). - -start_link(Mod, Args, Options) -> - gen:start(?MODULE, link, Mod, Args, Options). - -start_link(Name, Mod, Args, Options) -> - gen:start(?MODULE, link, Name, Mod, Args, Options). - - -%% ----------------------------------------------------------------- -%% Make a call to a generic server. -%% If the server is located at another node, that node will -%% be monitored. -%% If the client is trapping exits and is linked server termination -%% is handled here (? Shall we do that here (or rely on timeouts) ?). -%% ----------------------------------------------------------------- -call(Name, Request) -> - case catch gen:call(Name, '$gen_call', Request) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request]}}) - end. - -call(Name, Request, Timeout) -> - case catch gen:call(Name, '$gen_call', Request, Timeout) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request, Timeout]}}) - end. - -%% ----------------------------------------------------------------- -%% Make a cast to a generic server. -%% ----------------------------------------------------------------- -cast({global,Name}, Request) -> - catch global:send(Name, cast_msg(Request)), - ok; -cast({Name,Node}=Dest, Request) when is_atom(Name), is_atom(Node) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_atom(Dest) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_pid(Dest) -> - do_cast(Dest, Request). - -do_cast(Dest, Request) -> - do_send(Dest, cast_msg(Request)), - ok. - -cast_msg(Request) -> {'$gen_cast',Request}. - -%% ----------------------------------------------------------------- -%% Send a reply to the client. -%% ----------------------------------------------------------------- -reply({To, Tag}, Reply) -> - catch To ! {Tag, Reply}. - -%% ----------------------------------------------------------------- -%% Asyncronous broadcast, returns nothing, it's just send'n pray -%% ----------------------------------------------------------------- -abcast(Name, Request) when is_atom(Name) -> - do_abcast([node() | nodes()], Name, cast_msg(Request)). - -abcast(Nodes, Name, Request) when is_list(Nodes), is_atom(Name) -> - do_abcast(Nodes, Name, cast_msg(Request)). - -do_abcast([Node|Nodes], Name, Msg) when is_atom(Node) -> - do_send({Name,Node},Msg), - do_abcast(Nodes, Name, Msg); -do_abcast([], _,_) -> abcast. - -%%% ----------------------------------------------------------------- -%%% Make a call to servers at several nodes. -%%% Returns: {[Replies],[BadNodes]} -%%% A Timeout can be given -%%% -%%% A middleman process is used in case late answers arrives after -%%% the timeout. If they would be allowed to glog the callers message -%%% queue, it would probably become confused. Late answers will -%%% now arrive to the terminated middleman and so be discarded. -%%% ----------------------------------------------------------------- -multi_call(Name, Req) - when is_atom(Name) -> - do_multi_call([node() | nodes()], Name, Req, infinity). - -multi_call(Nodes, Name, Req) - when is_list(Nodes), is_atom(Name) -> - do_multi_call(Nodes, Name, Req, infinity). - -multi_call(Nodes, Name, Req, infinity) -> - do_multi_call(Nodes, Name, Req, infinity); -multi_call(Nodes, Name, Req, Timeout) - when is_list(Nodes), is_atom(Name), is_integer(Timeout), Timeout >= 0 -> - do_multi_call(Nodes, Name, Req, Timeout). - - -%%----------------------------------------------------------------- -%% enter_loop(Mod, Options, State, , , ) ->_ -%% -%% Description: Makes an existing process into a gen_server. -%% The calling process will enter the gen_server receive -%% loop and become a gen_server process. -%% The process *must* have been started using one of the -%% start functions in proc_lib, see proc_lib(3). -%% The user is responsible for any initialization of the -%% process, including registering a name for it. -%%----------------------------------------------------------------- -enter_loop(Mod, Options, State) -> - enter_loop(Mod, Options, State, self(), infinity, undefined). - -enter_loop(Mod, Options, State, Backoff = {backoff, _, _ , _}) -> - enter_loop(Mod, Options, State, self(), infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName = {_, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, undefined); - -enter_loop(Mod, Options, State, Timeout) -> - enter_loop(Mod, Options, State, self(), Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Backoff = {backoff, _, _, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName, Timeout) -> - enter_loop(Mod, Options, State, ServerName, Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Timeout, Backoff) -> - Name = get_proc_name(ServerName), - Parent = get_parent(), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - Backoff1 = extend_backoff(Backoff), - loop(find_prioritisers( - #gs2_state { parent = Parent, name = Name, state = State, - mod = Mod, time = Timeout, timeout_state = Backoff1, - queue = Queue, debug = Debug })). - -%%%======================================================================== -%%% Gen-callback functions -%%%======================================================================== - -%%% --------------------------------------------------- -%%% Initiate the new process. -%%% Register the name using the Rfunc function -%%% Calls the Mod:init/Args function. -%%% Finally an acknowledge is sent to Parent and the main -%%% loop is entered. -%%% --------------------------------------------------- -init_it(Starter, self, Name, Mod, Args, Options) -> - init_it(Starter, self(), Name, Mod, Args, Options); -init_it(Starter, Parent, Name0, Mod, Args, Options) -> - Name = name(Name0), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - GS2State = find_prioritisers( - #gs2_state { parent = Parent, - name = Name, - mod = Mod, - queue = Queue, - debug = Debug }), - case catch Mod:init(Args) of - {ok, State} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = infinity, - timeout_state = undefined }); - {ok, State, Timeout} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = undefined }); - {ok, State, Timeout, Backoff = {backoff, _, _, _}} -> - Backoff1 = extend_backoff(Backoff), - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = Backoff1 }); - {stop, Reason} -> - %% For consistency, we must make sure that the - %% registered name (if any) is unregistered before - %% the parent process is notified about the failure. - %% (Otherwise, the parent process could get - %% an 'already_started' error if it immediately - %% tried starting the process again.) - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - ignore -> - unregister_name(Name0), - proc_lib:init_ack(Starter, ignore), - exit(normal); - {'EXIT', Reason} -> - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - Else -> - Error = {bad_return_value, Else}, - proc_lib:init_ack(Starter, {error, Error}), - exit(Error) - end. - -name({local,Name}) -> Name; -name({global,Name}) -> Name; -%% name(Pid) when is_pid(Pid) -> Pid; -%% when R12 goes away, drop the line beneath and uncomment the line above -name(Name) -> Name. - -unregister_name({local,Name}) -> - _ = (catch unregister(Name)); -unregister_name({global,Name}) -> - _ = global:unregister_name(Name); -unregister_name(Pid) when is_pid(Pid) -> - Pid; -%% Under R12 let's just ignore it, as we have a single term as Name. -%% On R13 it will never get here, as we get tuple with 'local/global' atom. -unregister_name(_Name) -> ok. - -extend_backoff(undefined) -> - undefined; -extend_backoff({backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod}) -> - {backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod, now()}. - -%%%======================================================================== -%%% Internal functions -%%%======================================================================== -%%% --------------------------------------------------- -%%% The MAIN loop. -%%% --------------------------------------------------- -loop(GS2State = #gs2_state { time = hibernate, - timeout_state = undefined }) -> - pre_hibernate(GS2State); -loop(GS2State) -> - process_next_msg(drain(GS2State)). - -drain(GS2State) -> - receive - Input -> drain(in(Input, GS2State)) - after 0 -> GS2State - end. - -process_next_msg(GS2State = #gs2_state { time = Time, - timeout_state = TimeoutState, - queue = Queue }) -> - case priority_queue:out(Queue) of - {{value, Msg}, Queue1} -> - process_msg(Msg, GS2State #gs2_state { queue = Queue1 }); - {empty, Queue1} -> - {Time1, HibOnTimeout} - = case {Time, TimeoutState} of - {hibernate, {backoff, Current, _Min, _Desired, _RSt}} -> - {Current, true}; - {hibernate, _} -> - %% wake_hib/7 will set Time to hibernate. If - %% we were woken and didn't receive a msg - %% then we will get here and need a sensible - %% value for Time1, otherwise we crash. - %% R13B1 always waits infinitely when waking - %% from hibernation, so that's what we do - %% here too. - {infinity, false}; - _ -> {Time, false} - end, - receive - Input -> - %% Time could be 'hibernate' here, so *don't* call loop - process_next_msg( - drain(in(Input, GS2State #gs2_state { queue = Queue1 }))) - after Time1 -> - case HibOnTimeout of - true -> - pre_hibernate( - GS2State #gs2_state { queue = Queue1 }); - false -> - process_msg(timeout, - GS2State #gs2_state { queue = Queue1 }) - end - end - end. - -wake_hib(GS2State = #gs2_state { timeout_state = TS }) -> - TimeoutState1 = case TS of - undefined -> - undefined; - {SleptAt, TimeoutState} -> - adjust_timeout_state(SleptAt, now(), TimeoutState) - end, - post_hibernate( - drain(GS2State #gs2_state { timeout_state = TimeoutState1 })). - -hibernate(GS2State = #gs2_state { timeout_state = TimeoutState }) -> - TS = case TimeoutState of - undefined -> undefined; - {backoff, _, _, _, _} -> {now(), TimeoutState} - end, - proc_lib:hibernate(?MODULE, wake_hib, - [GS2State #gs2_state { timeout_state = TS }]). - -pre_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_pre_hibernate, 1) of - true -> - case catch Mod:handle_pre_hibernate(State) of - {hibernate, NState} -> - hibernate(GS2State #gs2_state { state = NState } ); - Reply -> - handle_common_termination(Reply, pre_hibernate, GS2State) - end; - false -> - hibernate(GS2State) - end. - -post_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_post_hibernate, 1) of - true -> - case catch Mod:handle_post_hibernate(State) of - {noreply, NState} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = infinity }); - {noreply, NState, Time} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = Time }); - Reply -> - handle_common_termination(Reply, post_hibernate, GS2State) - end; - false -> - %% use hibernate here, not infinity. This matches - %% R13B. The key is that we should be able to get through - %% to process_msg calling sys:handle_system_msg with Time - %% still set to hibernate, iff that msg is the very msg - %% that woke us up (or the first msg we receive after - %% waking up). - process_next_msg(GS2State #gs2_state { time = hibernate }) - end. - -adjust_timeout_state(SleptAt, AwokeAt, {backoff, CurrentTO, MinimumTO, - DesiredHibPeriod, RandomState}) -> - NapLengthMicros = timer:now_diff(AwokeAt, SleptAt), - CurrentMicros = CurrentTO * 1000, - MinimumMicros = MinimumTO * 1000, - DesiredHibMicros = DesiredHibPeriod * 1000, - GapBetweenMessagesMicros = NapLengthMicros + CurrentMicros, - Base = - %% If enough time has passed between the last two messages then we - %% should consider sleeping sooner. Otherwise stay awake longer. - case GapBetweenMessagesMicros > (MinimumMicros + DesiredHibMicros) of - true -> lists:max([MinimumTO, CurrentTO div 2]); - false -> CurrentTO - end, - {Extra, RandomState1} = random:uniform_s(Base, RandomState), - CurrentTO1 = Base + Extra, - {backoff, CurrentTO1, MinimumTO, DesiredHibPeriod, RandomState1}. - -in({'$gen_cast', Msg}, GS2State = #gs2_state { prioritise_cast = PC, - queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - {'$gen_cast', Msg}, - PC(Msg, GS2State), Queue) }; -in({'$gen_call', From, Msg}, GS2State = #gs2_state { prioritise_call = PC, - queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - {'$gen_call', From, Msg}, - PC(Msg, From, GS2State), Queue) }; -in(Input, GS2State = #gs2_state { prioritise_info = PI, queue = Queue }) -> - GS2State #gs2_state { queue = priority_queue:in( - Input, PI(Input, GS2State), Queue) }. - -process_msg(Msg, - GS2State = #gs2_state { parent = Parent, - name = Name, - debug = Debug }) -> - case Msg of - {system, From, Req} -> - sys:handle_system_msg( - Req, From, Parent, ?MODULE, Debug, - GS2State); - %% gen_server puts Hib on the end as the 7th arg, but that - %% version of the function seems not to be documented so - %% leaving out for now. - {'EXIT', Parent, Reason} -> - terminate(Reason, Msg, GS2State); - _Msg when Debug =:= [] -> - handle_msg(Msg, GS2State); - _Msg -> - Debug1 = sys:handle_debug(Debug, fun print_event/3, - Name, {in, Msg}), - handle_msg(Msg, GS2State #gs2_state { debug = Debug1 }) - end. - -%%% --------------------------------------------------- -%%% Send/recive functions -%%% --------------------------------------------------- -do_send(Dest, Msg) -> - catch erlang:send(Dest, Msg). - -do_multi_call(Nodes, Name, Req, infinity) -> - Tag = make_ref(), - Monitors = send_nodes(Nodes, Name, Tag, Req), - rec_nodes(Tag, Monitors, Name, undefined); -do_multi_call(Nodes, Name, Req, Timeout) -> - Tag = make_ref(), - Caller = self(), - Receiver = - spawn( - fun () -> - %% Middleman process. Should be unsensitive to regular - %% exit signals. The sychronization is needed in case - %% the receiver would exit before the caller started - %% the monitor. - process_flag(trap_exit, true), - Mref = erlang:monitor(process, Caller), - receive - {Caller,Tag} -> - Monitors = send_nodes(Nodes, Name, Tag, Req), - TimerId = erlang:start_timer(Timeout, self(), ok), - Result = rec_nodes(Tag, Monitors, Name, TimerId), - exit({self(),Tag,Result}); - {'DOWN',Mref,_,_,_} -> - %% Caller died before sending us the go-ahead. - %% Give up silently. - exit(normal) - end - end), - Mref = erlang:monitor(process, Receiver), - Receiver ! {self(),Tag}, - receive - {'DOWN',Mref,_,_,{Receiver,Tag,Result}} -> - Result; - {'DOWN',Mref,_,_,Reason} -> - %% The middleman code failed. Or someone did - %% exit(_, kill) on the middleman process => Reason==killed - exit(Reason) - end. - -send_nodes(Nodes, Name, Tag, Req) -> - send_nodes(Nodes, Name, Tag, Req, []). - -send_nodes([Node|Tail], Name, Tag, Req, Monitors) - when is_atom(Node) -> - Monitor = start_monitor(Node, Name), - %% Handle non-existing names in rec_nodes. - catch {Name, Node} ! {'$gen_call', {self(), {Tag, Node}}, Req}, - send_nodes(Tail, Name, Tag, Req, [Monitor | Monitors]); -send_nodes([_Node|Tail], Name, Tag, Req, Monitors) -> - %% Skip non-atom Node - send_nodes(Tail, Name, Tag, Req, Monitors); -send_nodes([], _Name, _Tag, _Req, Monitors) -> - Monitors. - -%% Against old nodes: -%% If no reply has been delivered within 2 secs. (per node) check that -%% the server really exists and wait for ever for the answer. -%% -%% Against contemporary nodes: -%% Wait for reply, server 'DOWN', or timeout from TimerId. - -rec_nodes(Tag, Nodes, Name, TimerId) -> - rec_nodes(Tag, Nodes, Name, [], [], 2000, TimerId). - -rec_nodes(Tag, [{N,R}|Tail], Name, Badnodes, Replies, Time, TimerId ) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, Time, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], Time, TimerId); - {timeout, TimerId, _} -> - unmonitor(R), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes(Tag, [N|Tail], Name, Badnodes, Replies, Time, TimerId) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, 2000, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], 2000, TimerId); - {timeout, TimerId, _} -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N | Badnodes], Replies) - after Time -> - case rpc:call(N, erlang, whereis, [Name]) of - Pid when is_pid(Pid) -> % It exists try again. - rec_nodes(Tag, [N|Tail], Name, Badnodes, - Replies, infinity, TimerId); - _ -> % badnode - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], - Replies, 2000, TimerId) - end - end; -rec_nodes(_, [], _, Badnodes, Replies, _, TimerId) -> - case catch erlang:cancel_timer(TimerId) of - false -> % It has already sent it's message - receive - {timeout, TimerId, _} -> ok - after 0 -> - ok - end; - _ -> % Timer was cancelled, or TimerId was 'undefined' - ok - end, - {Replies, Badnodes}. - -%% Collect all replies that already have arrived -rec_nodes_rest(Tag, [{N,R}|Tail], Name, Badnodes, Replies) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(Tag, [N|Tail], Name, Badnodes, Replies) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(_Tag, [], _Name, Badnodes, Replies) -> - {Replies, Badnodes}. - - -%%% --------------------------------------------------- -%%% Monitor functions -%%% --------------------------------------------------- - -start_monitor(Node, Name) when is_atom(Node), is_atom(Name) -> - if node() =:= nonode@nohost, Node =/= nonode@nohost -> - Ref = make_ref(), - self() ! {'DOWN', Ref, process, {Name, Node}, noconnection}, - {Node, Ref}; - true -> - case catch erlang:monitor(process, {Name, Node}) of - {'EXIT', _} -> - %% Remote node is R6 - monitor_node(Node, true), - Node; - Ref when is_reference(Ref) -> - {Node, Ref} - end - end. - -%% Cancels a monitor started with Ref=erlang:monitor(_, _). -unmonitor(Ref) when is_reference(Ref) -> - erlang:demonitor(Ref), - receive - {'DOWN', Ref, _, _, _} -> - true - after 0 -> - true - end. - -%%% --------------------------------------------------- -%%% Message handling functions -%%% --------------------------------------------------- - -dispatch({'$gen_cast', Msg}, Mod, State) -> - Mod:handle_cast(Msg, State); -dispatch(Info, Mod, State) -> - Mod:handle_info(Info, State). - -common_reply(_Name, From, Reply, _NState, [] = _Debug) -> - reply(From, Reply), - []; -common_reply(Name, From, Reply, NState, Debug) -> - reply(Name, From, Reply, NState, Debug). - -common_debug([] = _Debug, _Func, _Info, _Event) -> - []; -common_debug(Debug, Func, Info, Event) -> - sys:handle_debug(Debug, Func, Info, Event). - -handle_msg({'$gen_call', From, Msg}, GS2State = #gs2_state { mod = Mod, - state = State, - name = Name, - debug = Debug }) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {reply, Reply, NState, Time1} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1}); - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = infinity, - debug = Debug1}); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = Time1, - debug = Debug1}); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Msg, - GS2State #gs2_state { state = NState })), - reply(Name, From, Reply, NState, Debug), - exit(R); - Other -> - handle_common_reply(Other, Msg, GS2State) - end; -handle_msg(Msg, GS2State = #gs2_state { mod = Mod, state = State }) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, Msg, GS2State). - -handle_common_reply(Reply, Msg, GS2State = #gs2_state { name = Name, - debug = Debug}) -> - case Reply of - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1 }); - {become, Mod, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {become, Mod, NState}), - loop(find_prioritisers( - GS2State #gs2_state { mod = Mod, - state = NState, - time = infinity, - debug = Debug1 })); - {become, Mod, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {become, Mod, NState}), - loop(find_prioritisers( - GS2State #gs2_state { mod = Mod, - state = NState, - time = Time1, - debug = Debug1 })); - _ -> - handle_common_termination(Reply, Msg, GS2State) - end. - -handle_common_termination(Reply, Msg, GS2State) -> - case Reply of - {stop, Reason, NState} -> - terminate(Reason, Msg, GS2State #gs2_state { state = NState }); - {'EXIT', What} -> - terminate(What, Msg, GS2State); - _ -> - terminate({bad_return_value, Reply}, Msg, GS2State) - end. - -reply(Name, {To, Tag}, Reply, State, Debug) -> - reply({To, Tag}, Reply), - sys:handle_debug( - Debug, fun print_event/3, Name, {out, Reply, To, State}). - - -%%----------------------------------------------------------------- -%% Callback functions for system messages handling. -%%----------------------------------------------------------------- -system_continue(Parent, Debug, GS2State) -> - loop(GS2State #gs2_state { parent = Parent, debug = Debug }). - -system_terminate(Reason, _Parent, Debug, GS2State) -> - terminate(Reason, [], GS2State #gs2_state { debug = Debug }). - -system_code_change(GS2State = #gs2_state { mod = Mod, - state = State }, - _Module, OldVsn, Extra) -> - case catch Mod:code_change(OldVsn, State, Extra) of - {ok, NewState} -> - NewGS2State = find_prioritisers( - GS2State #gs2_state { state = NewState }), - {ok, [NewGS2State]}; - Else -> - Else - end. - -%%----------------------------------------------------------------- -%% Format debug messages. Print them as the call-back module sees -%% them, not as the real erlang messages. Use trace for that. -%%----------------------------------------------------------------- -print_event(Dev, {in, Msg}, Name) -> - case Msg of - {'$gen_call', {From, _Tag}, Call} -> - io:format(Dev, "*DBG* ~p got call ~p from ~w~n", - [Name, Call, From]); - {'$gen_cast', Cast} -> - io:format(Dev, "*DBG* ~p got cast ~p~n", - [Name, Cast]); - _ -> - io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg]) - end; -print_event(Dev, {out, Msg, To, State}, Name) -> - io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n", - [Name, Msg, To, State]); -print_event(Dev, {noreply, State}, Name) -> - io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]); -print_event(Dev, Event, Name) -> - io:format(Dev, "*DBG* ~p dbg ~p~n", [Name, Event]). - - -%%% --------------------------------------------------- -%%% Terminate the server. -%%% --------------------------------------------------- - -terminate(Reason, Msg, #gs2_state { name = Name, - mod = Mod, - state = State, - debug = Debug }) -> - case catch Mod:terminate(Reason, State) of - {'EXIT', R} -> - error_info(R, Reason, Name, Msg, State, Debug), - exit(R); - _ -> - case Reason of - normal -> - exit(normal); - shutdown -> - exit(shutdown); - {shutdown,_}=Shutdown -> - exit(Shutdown); - _ -> - error_info(Reason, undefined, Name, Msg, State, Debug), - exit(Reason) - end - end. - -error_info(_Reason, _RootCause, application_controller, _Msg, _State, _Debug) -> - %% OTP-5811 Don't send an error report if it's the system process - %% application_controller which is terminating - let init take care - %% of it instead - ok; -error_info(Reason, RootCause, Name, Msg, State, Debug) -> - Reason1 = error_reason(Reason), - Fmt = - "** Generic server ~p terminating~n" - "** Last message in was ~p~n" - "** When Server state == ~p~n" - "** Reason for termination == ~n** ~p~n", - case RootCause of - undefined -> format(Fmt, [Name, Msg, State, Reason1]); - _ -> format(Fmt ++ "** In 'terminate' callback " - "with reason ==~n** ~p~n", - [Name, Msg, State, Reason1, - error_reason(RootCause)]) - end, - sys:print_log(Debug), - ok. - -error_reason({undef,[{M,F,A}|MFAs]} = Reason) -> - case code:is_loaded(M) of - false -> {'module could not be loaded',[{M,F,A}|MFAs]}; - _ -> case erlang:function_exported(M, F, length(A)) of - true -> Reason; - false -> {'function not exported',[{M,F,A}|MFAs]} - end - end; -error_reason(Reason) -> - Reason. - -%%% --------------------------------------------------- -%%% Misc. functions. -%%% --------------------------------------------------- - -opt(Op, [{Op, Value}|_]) -> - {ok, Value}; -opt(Op, [_|Options]) -> - opt(Op, Options); -opt(_, []) -> - false. - -debug_options(Name, Opts) -> - case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) - end. - -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). - -dbg_opts(Name, Opts) -> - case catch sys:debug_options(Opts) of - {'EXIT',_} -> - format("~p: ignoring erroneous debug options - ~p~n", - [Name, Opts]), - []; - Dbg -> - Dbg - end. - -get_proc_name(Pid) when is_pid(Pid) -> - Pid; -get_proc_name({local, Name}) -> - case process_info(self(), registered_name) of - {registered_name, Name} -> - Name; - {registered_name, _Name} -> - exit(process_not_registered); - [] -> - exit(process_not_registered) - end; -get_proc_name({global, Name}) -> - case global:safe_whereis_name(Name) of - undefined -> - exit(process_not_registered_globally); - Pid when Pid =:= self() -> - Name; - _Pid -> - exit(process_not_registered_globally) - end. - -get_parent() -> - case get('$ancestors') of - [Parent | _] when is_pid(Parent)-> - Parent; - [Parent | _] when is_atom(Parent)-> - name_to_pid(Parent); - _ -> - exit(process_was_not_started_by_proc_lib) - end. - -name_to_pid(Name) -> - case whereis(Name) of - undefined -> - case global:safe_whereis_name(Name) of - undefined -> - exit(could_not_find_registerd_name); - Pid -> - Pid - end; - Pid -> - Pid - end. - -find_prioritisers(GS2State = #gs2_state { mod = Mod }) -> - PrioriCall = function_exported_or_default( - Mod, 'prioritise_call', 3, - fun (_Msg, _From, _State) -> 0 end), - PrioriCast = function_exported_or_default(Mod, 'prioritise_cast', 2, - fun (_Msg, _State) -> 0 end), - PrioriInfo = function_exported_or_default(Mod, 'prioritise_info', 2, - fun (_Msg, _State) -> 0 end), - GS2State #gs2_state { prioritise_call = PrioriCall, - prioritise_cast = PrioriCast, - prioritise_info = PrioriInfo }. - -function_exported_or_default(Mod, Fun, Arity, Default) -> - case erlang:function_exported(Mod, Fun, Arity) of - true -> case Arity of - 2 -> fun (Msg, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end; - 3 -> fun (Msg, From, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, From, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end - end; - false -> Default - end. - -%%----------------------------------------------------------------- -%% Status information -%%----------------------------------------------------------------- -format_status(Opt, StatusData) -> - [PDict, SysState, Parent, Debug, - #gs2_state{name = Name, state = State, mod = Mod, queue = Queue}] = - StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), - Log = sys:get_debug(log, Debug, []), - Specfic = - case erlang:function_exported(Mod, format_status, 2) of - true -> case catch Mod:format_status(Opt, [PDict, State]) of - {'EXIT', _} -> [{data, [{"State", State}]}]; - Else -> Else - end; - _ -> [{data, [{"State", State}]}] - end, - [{header, Header}, - {data, [{"Status", SysState}, - {"Parent", Parent}, - {"Logged events", Log}, - {"Queued messages", priority_queue:to_list(Queue)}]} | - Specfic]. diff --git a/src/gm.erl b/src/gm.erl deleted file mode 100644 index 8b7dc70c..00000000 --- a/src/gm.erl +++ /dev/null @@ -1,1379 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm). - -%% Guaranteed Multicast -%% ==================== -%% -%% This module provides the ability to create named groups of -%% processes to which members can be dynamically added and removed, -%% and for messages to be broadcast within the group that are -%% guaranteed to reach all members of the group during the lifetime of -%% the message. The lifetime of a message is defined as being, at a -%% minimum, the time from which the message is first sent to any -%% member of the group, up until the time at which it is known by the -%% member who published the message that the message has reached all -%% group members. -%% -%% The guarantee given is that provided a message, once sent, makes it -%% to members who do not all leave the group, the message will -%% continue to propagate to all group members. -%% -%% Another way of stating the guarantee is that if member P publishes -%% messages m and m', then for all members P', if P' is a member of -%% the group prior to the publication of m, and P' receives m', then -%% P' will receive m. -%% -%% Note that only local-ordering is enforced: i.e. if member P sends -%% message m and then message m', then for-all members P', if P' -%% receives m and m', then they will receive m' after m. Causality -%% ordering is _not_ enforced. I.e. if member P receives message m -%% and as a result publishes message m', there is no guarantee that -%% other members P' will receive m before m'. -%% -%% -%% API Use -%% ------- -%% -%% Mnesia must be started. Use the idempotent create_tables/0 function -%% to create the tables required. -%% -%% start_link/3 -%% Provide the group name, the callback module name, and any arguments -%% you wish to be passed into the callback module's functions. The -%% joined/2 function will be called when we have joined the group, -%% with the arguments passed to start_link and a list of the current -%% members of the group. See the comments in behaviour_info/1 below -%% for further details of the callback functions. -%% -%% leave/1 -%% Provide the Pid. Removes the Pid from the group. The callback -%% terminate/2 function will be called. -%% -%% broadcast/2 -%% Provide the Pid and a Message. The message will be sent to all -%% members of the group as per the guarantees given above. This is a -%% cast and the function call will return immediately. There is no -%% guarantee that the message will reach any member of the group. -%% -%% confirmed_broadcast/2 -%% Provide the Pid and a Message. As per broadcast/2 except that this -%% is a call, not a cast, and only returns 'ok' once the Message has -%% reached every member of the group. Do not call -%% confirmed_broadcast/2 directly from the callback module otherwise -%% you will deadlock the entire group. -%% -%% group_members/1 -%% Provide the Pid. Returns a list of the current group members. -%% -%% -%% Implementation Overview -%% ----------------------- -%% -%% One possible means of implementation would be a fan-out from the -%% sender to every member of the group. This would require that the -%% group is fully connected, and, in the event that the original -%% sender of the message disappears from the group before the message -%% has made it to every member of the group, raises questions as to -%% who is responsible for sending on the message to new group members. -%% In particular, the issue is with [ Pid ! Msg || Pid <- Members ] - -%% if the sender dies part way through, who is responsible for -%% ensuring that the remaining Members receive the Msg? In the event -%% that within the group, messages sent are broadcast from a subset of -%% the members, the fan-out arrangement has the potential to -%% substantially impact the CPU and network workload of such members, -%% as such members would have to accommodate the cost of sending each -%% message to every group member. -%% -%% Instead, if the members of the group are arranged in a chain, then -%% it becomes easier to reason about who within the group has received -%% each message and who has not. It eases issues of responsibility: in -%% the event of a group member disappearing, the nearest upstream -%% member of the chain is responsible for ensuring that messages -%% continue to propagate down the chain. It also results in equal -%% distribution of sending and receiving workload, even if all -%% messages are being sent from just a single group member. This -%% configuration has the further advantage that it is not necessary -%% for every group member to know of every other group member, and -%% even that a group member does not have to be accessible from all -%% other group members. -%% -%% Performance is kept high by permitting pipelining and all -%% communication between joined group members is asynchronous. In the -%% chain A -> B -> C -> D, if A sends a message to the group, it will -%% not directly contact C or D. However, it must know that D receives -%% the message (in addition to B and C) before it can consider the -%% message fully sent. A simplistic implementation would require that -%% D replies to C, C replies to B and B then replies to A. This would -%% result in a propagation delay of twice the length of the chain. It -%% would also require, in the event of the failure of C, that D knows -%% to directly contact B and issue the necessary replies. Instead, the -%% chain forms a ring: D sends the message on to A: D does not -%% distinguish A as the sender, merely as the next member (downstream) -%% within the chain (which has now become a ring). When A receives -%% from D messages that A sent, it knows that all members have -%% received the message. However, the message is not dead yet: if C -%% died as B was sending to C, then B would need to detect the death -%% of C and forward the message on to D instead: thus every node has -%% to remember every message published until it is told that it can -%% forget about the message. This is essential not just for dealing -%% with failure of members, but also for the addition of new members. -%% -%% Thus once A receives the message back again, it then sends to B an -%% acknowledgement for the message, indicating that B can now forget -%% about the message. B does so, and forwards the ack to C. C forgets -%% the message, and forwards the ack to D, which forgets the message -%% and finally forwards the ack back to A. At this point, A takes no -%% further action: the message and its acknowledgement have made it to -%% every member of the group. The message is now dead, and any new -%% member joining the group at this point will not receive the -%% message. -%% -%% We therefore have two roles: -%% -%% 1. The sender, who upon receiving their own messages back, must -%% then send out acknowledgements, and upon receiving their own -%% acknowledgements back perform no further action. -%% -%% 2. The other group members who upon receiving messages and -%% acknowledgements must update their own internal state accordingly -%% (the sending member must also do this in order to be able to -%% accommodate failures), and forwards messages on to their downstream -%% neighbours. -%% -%% -%% Implementation: It gets trickier -%% -------------------------------- -%% -%% Chain A -> B -> C -> D -%% -%% A publishes a message which B receives. A now dies. B and D will -%% detect the death of A, and will link up, thus the chain is now B -> -%% C -> D. B forwards A's message on to C, who forwards it to D, who -%% forwards it to B. Thus B is now responsible for A's messages - both -%% publications and acknowledgements that were in flight at the point -%% at which A died. Even worse is that this is transitive: after B -%% forwards A's message to C, B dies as well. Now C is not only -%% responsible for B's in-flight messages, but is also responsible for -%% A's in-flight messages. -%% -%% Lemma 1: A member can only determine which dead members they have -%% inherited responsibility for if there is a total ordering on the -%% conflicting additions and subtractions of members from the group. -%% -%% Consider the simultaneous death of B and addition of B' that -%% transitions a chain from A -> B -> C to A -> B' -> C. Either B' or -%% C is responsible for in-flight messages from B. It is easy to -%% ensure that at least one of them thinks they have inherited B, but -%% if we do not ensure that exactly one of them inherits B, then we -%% could have B' converting publishes to acks, which then will crash C -%% as C does not believe it has issued acks for those messages. -%% -%% More complex scenarios are easy to concoct: A -> B -> C -> D -> E -%% becoming A -> C' -> E. Who has inherited which of B, C and D? -%% -%% However, for non-conflicting membership changes, only a partial -%% ordering is required. For example, A -> B -> C becoming A -> A' -> -%% B. The addition of A', between A and B can have no conflicts with -%% the death of C: it is clear that A has inherited C's messages. -%% -%% For ease of implementation, we adopt the simple solution, of -%% imposing a total order on all membership changes. -%% -%% On the death of a member, it is ensured the dead member's -%% neighbours become aware of the death, and the upstream neighbour -%% now sends to its new downstream neighbour its state, including the -%% messages pending acknowledgement. The downstream neighbour can then -%% use this to calculate which publishes and acknowledgements it has -%% missed out on, due to the death of its old upstream. Thus the -%% downstream can catch up, and continues the propagation of messages -%% through the group. -%% -%% Lemma 2: When a member is joining, it must synchronously -%% communicate with its upstream member in order to receive its -%% starting state atomically with its addition to the group. -%% -%% New members must start with the same state as their nearest -%% upstream neighbour. This ensures that it is not surprised by -%% acknowledgements they are sent, and that should their downstream -%% neighbour die, they are able to send the correct state to their new -%% downstream neighbour to ensure it can catch up. Thus in the -%% transition A -> B -> C becomes A -> A' -> B -> C becomes A -> A' -> -%% C, A' must start with the state of A, so that it can send C the -%% correct state when B dies, allowing C to detect any missed -%% messages. -%% -%% If A' starts by adding itself to the group membership, A could then -%% die, without A' having received the necessary state from A. This -%% would leave A' responsible for in-flight messages from A, but -%% having the least knowledge of all, of those messages. Thus A' must -%% start by synchronously calling A, which then immediately sends A' -%% back its state. A then adds A' to the group. If A dies at this -%% point then A' will be able to see this (as A' will fail to appear -%% in the group membership), and thus A' will ignore the state it -%% receives from A, and will simply repeat the process, trying to now -%% join downstream from some other member. This ensures that should -%% the upstream die as soon as the new member has been joined, the new -%% member is guaranteed to receive the correct state, allowing it to -%% correctly process messages inherited due to the death of its -%% upstream neighbour. -%% -%% The canonical definition of the group membership is held by a -%% distributed database. Whilst this allows the total ordering of -%% changes to be achieved, it is nevertheless undesirable to have to -%% query this database for the current view, upon receiving each -%% message. Instead, we wish for members to be able to cache a view of -%% the group membership, which then requires a cache invalidation -%% mechanism. Each member maintains its own view of the group -%% membership. Thus when the group's membership changes, members may -%% need to become aware of such changes in order to be able to -%% accurately process messages they receive. Because of the -%% requirement of a total ordering of conflicting membership changes, -%% it is not possible to use the guaranteed broadcast mechanism to -%% communicate these changes: to achieve the necessary ordering, it -%% would be necessary for such messages to be published by exactly one -%% member, which can not be guaranteed given that such a member could -%% die. -%% -%% The total ordering we enforce on membership changes gives rise to a -%% view version number: every change to the membership creates a -%% different view, and the total ordering permits a simple -%% monotonically increasing view version number. -%% -%% Lemma 3: If a message is sent from a member that holds view version -%% N, it can be correctly processed by any member receiving the -%% message with a view version >= N. -%% -%% Initially, let us suppose that each view contains the ordering of -%% every member that was ever part of the group. Dead members are -%% marked as such. Thus we have a ring of members, some of which are -%% dead, and are thus inherited by the nearest alive downstream -%% member. -%% -%% In the chain A -> B -> C, all three members initially have view -%% version 1, which reflects reality. B publishes a message, which is -%% forward by C to A. B now dies, which A notices very quickly. Thus A -%% updates the view, creating version 2. It now forwards B's -%% publication, sending that message to its new downstream neighbour, -%% C. This happens before C is aware of the death of B. C must become -%% aware of the view change before it interprets the message its -%% received, otherwise it will fail to learn of the death of B, and -%% thus will not realise it has inherited B's messages (and will -%% likely crash). -%% -%% Thus very simply, we have that each subsequent view contains more -%% information than the preceding view. -%% -%% However, to avoid the views growing indefinitely, we need to be -%% able to delete members which have died _and_ for which no messages -%% are in-flight. This requires that upon inheriting a dead member, we -%% know the last publication sent by the dead member (this is easy: we -%% inherit a member because we are the nearest downstream member which -%% implies that we know at least as much than everyone else about the -%% publications of the dead member), and we know the earliest message -%% for which the acknowledgement is still in flight. -%% -%% In the chain A -> B -> C, when B dies, A will send to C its state -%% (as C is the new downstream from A), allowing C to calculate which -%% messages it has missed out on (described above). At this point, C -%% also inherits B's messages. If that state from A also includes the -%% last message published by B for which an acknowledgement has been -%% seen, then C knows exactly which further acknowledgements it must -%% receive (also including issuing acknowledgements for publications -%% still in-flight that it receives), after which it is known there -%% are no more messages in flight for B, thus all evidence that B was -%% ever part of the group can be safely removed from the canonical -%% group membership. -%% -%% Thus, for every message that a member sends, it includes with that -%% message its view version. When a member receives a message it will -%% update its view from the canonical copy, should its view be older -%% than the view version included in the message it has received. -%% -%% The state held by each member therefore includes the messages from -%% each publisher pending acknowledgement, the last publication seen -%% from that publisher, and the last acknowledgement from that -%% publisher. In the case of the member's own publications or -%% inherited members, this last acknowledgement seen state indicates -%% the last acknowledgement retired, rather than sent. -%% -%% -%% Proof sketch -%% ------------ -%% -%% We need to prove that with the provided operational semantics, we -%% can never reach a state that is not well formed from a well-formed -%% starting state. -%% -%% Operational semantics (small step): straight-forward message -%% sending, process monitoring, state updates. -%% -%% Well formed state: dead members inherited by exactly one non-dead -%% member; for every entry in anyone's pending-acks, either (the -%% publication of the message is in-flight downstream from the member -%% and upstream from the publisher) or (the acknowledgement of the -%% message is in-flight downstream from the publisher and upstream -%% from the member). -%% -%% Proof by induction on the applicable operational semantics. -%% -%% -%% Related work -%% ------------ -%% -%% The ring configuration and double traversal of messages around the -%% ring is similar (though developed independently) to the LCR -%% protocol by [Levy 2008]. However, LCR differs in several -%% ways. Firstly, by using vector clocks, it enforces a total order of -%% message delivery, which is unnecessary for our purposes. More -%% significantly, it is built on top of a "group communication system" -%% which performs the group management functions, taking -%% responsibility away from the protocol as to how to cope with safely -%% adding and removing members. When membership changes do occur, the -%% protocol stipulates that every member must perform communication -%% with every other member of the group, to ensure all outstanding -%% deliveries complete, before the entire group transitions to the new -%% view. This, in total, requires two sets of all-to-all synchronous -%% communications. -%% -%% This is not only rather inefficient, but also does not explain what -%% happens upon the failure of a member during this process. It does -%% though entirely avoid the need for inheritance of responsibility of -%% dead members that our protocol incorporates. -%% -%% In [Marandi et al 2010], a Paxos-based protocol is described. This -%% work explicitly focuses on the efficiency of communication. LCR -%% (and our protocol too) are more efficient, but at the cost of -%% higher latency. The Ring-Paxos protocol is itself built on top of -%% IP-multicast, which rules it out for many applications where -%% point-to-point communication is all that can be required. They also -%% have an excellent related work section which I really ought to -%% read... -%% -%% -%% [Levy 2008] The Complexity of Reliable Distributed Storage, 2008. -%% [Marandi et al 2010] Ring Paxos: A High-Throughput Atomic Broadcast -%% Protocol - - --behaviour(gen_server2). - --export([create_tables/0, start_link/3, leave/1, broadcast/2, - confirmed_broadcast/2, group_members/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3, prioritise_cast/2, prioritise_info/2]). - --export([behaviour_info/1]). - --export([table_definitions/0, flush/1]). - --define(GROUP_TABLE, gm_group). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(BROADCAST_TIMER, 25). --define(SETS, ordsets). --define(DICT, orddict). - --record(state, - { self, - left, - right, - group_name, - module, - view, - pub_count, - members_state, - callback_args, - confirms, - broadcast_buffer, - broadcast_timer - }). - --record(gm_group, { name, version, members }). - --record(view_member, { id, aliases, left, right }). - --record(member, { pending_ack, last_pub, last_ack }). - --define(TABLE, {?GROUP_TABLE, [{record_name, gm_group}, - {attributes, record_info(fields, gm_group)}]}). --define(TABLE_MATCH, {match, #gm_group { _ = '_' }}). - --define(TAG, '$gm'). - --ifdef(use_specs). - --export_type([group_name/0]). - --type(group_name() :: any()). - --spec(create_tables/0 :: () -> 'ok'). --spec(start_link/3 :: (group_name(), atom(), any()) -> - {'ok', pid()} | {'error', any()}). --spec(leave/1 :: (pid()) -> 'ok'). --spec(broadcast/2 :: (pid(), any()) -> 'ok'). --spec(confirmed_broadcast/2 :: (pid(), any()) -> 'ok'). --spec(group_members/1 :: (pid()) -> [pid()]). - --endif. - -behaviour_info(callbacks) -> - [ - %% The joined, members_changed and handle_msg callbacks can all - %% return any of the following terms: - %% - %% 'ok' - the callback function returns normally - %% - %% {'stop', Reason} - the callback indicates the member should - %% stop with reason Reason and should leave the group. - %% - %% {'become', Module, Args} - the callback indicates that the - %% callback module should be changed to Module and that the - %% callback functions should now be passed the arguments - %% Args. This allows the callback module to be dynamically - %% changed. - - %% Called when we've successfully joined the group. Supplied with - %% Args provided in start_link, plus current group members. - {joined, 2}, - - %% Supplied with Args provided in start_link, the list of new - %% members and the list of members previously known to us that - %% have since died. Note that if a member joins and dies very - %% quickly, it's possible that we will never see that member - %% appear in either births or deaths. However we are guaranteed - %% that (1) we will see a member joining either in the births - %% here, or in the members passed to joined/2 before receiving - %% any messages from it; and (2) we will not see members die that - %% we have not seen born (or supplied in the members to - %% joined/2). - {members_changed, 3}, - - %% Supplied with Args provided in start_link, the sender, and the - %% message. This does get called for messages injected by this - %% member, however, in such cases, there is no special - %% significance of this invocation: it does not indicate that the - %% message has made it to any other members, let alone all other - %% members. - {handle_msg, 3}, - - %% Called on gm member termination as per rules in gen_server, - %% with the Args provided in start_link plus the termination - %% Reason. - {terminate, 2} - ]; -behaviour_info(_Other) -> - undefined. - -create_tables() -> - create_tables([?TABLE]). - -create_tables([]) -> - ok; -create_tables([{Table, Attributes} | Tables]) -> - case mnesia:create_table(Table, Attributes) of - {atomic, ok} -> create_tables(Tables); - {aborted, {already_exists, gm_group}} -> create_tables(Tables); - Err -> Err - end. - -table_definitions() -> - {Name, Attributes} = ?TABLE, - [{Name, [?TABLE_MATCH | Attributes]}]. - -start_link(GroupName, Module, Args) -> - gen_server2:start_link(?MODULE, [GroupName, Module, Args], []). - -leave(Server) -> - gen_server2:cast(Server, leave). - -broadcast(Server, Msg) -> - gen_server2:cast(Server, {broadcast, Msg}). - -confirmed_broadcast(Server, Msg) -> - gen_server2:call(Server, {confirmed_broadcast, Msg}, infinity). - -group_members(Server) -> - gen_server2:call(Server, group_members, infinity). - -flush(Server) -> - gen_server2:cast(Server, flush). - - -init([GroupName, Module, Args]) -> - {MegaSecs, Secs, MicroSecs} = now(), - random:seed(MegaSecs, Secs, MicroSecs), - gen_server2:cast(self(), join), - Self = self(), - {ok, #state { self = Self, - left = {Self, undefined}, - right = {Self, undefined}, - group_name = GroupName, - module = Module, - view = undefined, - pub_count = 0, - members_state = undefined, - callback_args = Args, - confirms = queue:new(), - broadcast_buffer = [], - broadcast_timer = undefined }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - - -handle_call({confirmed_broadcast, _Msg}, _From, - State = #state { members_state = undefined }) -> - reply(not_joined, State); - -handle_call({confirmed_broadcast, Msg}, _From, - State = #state { self = Self, - right = {Self, undefined}, - module = Module, - callback_args = Args }) -> - handle_callback_result({Module:handle_msg(Args, Self, Msg), ok, State}); - -handle_call({confirmed_broadcast, Msg}, From, State) -> - internal_broadcast(Msg, From, State); - -handle_call(group_members, _From, - State = #state { members_state = undefined }) -> - reply(not_joined, State); - -handle_call(group_members, _From, State = #state { view = View }) -> - reply(alive_view_members(View), State); - -handle_call({add_on_right, _NewMember}, _From, - State = #state { members_state = undefined }) -> - reply(not_ready, State); - -handle_call({add_on_right, NewMember}, _From, - State = #state { self = Self, - group_name = GroupName, - view = View, - members_state = MembersState, - module = Module, - callback_args = Args }) -> - Group = record_new_member_in_group( - GroupName, Self, NewMember, - fun (Group1) -> - View1 = group_to_view(Group1), - ok = send_right(NewMember, View1, - {catchup, Self, prepare_members_state( - MembersState)}) - end), - View2 = group_to_view(Group), - State1 = check_neighbours(State #state { view = View2 }), - Result = callback_view_changed(Args, Module, View, View2), - handle_callback_result({Result, {ok, Group}, State1}). - - -handle_cast({?TAG, ReqVer, Msg}, - State = #state { view = View, - group_name = GroupName, - module = Module, - callback_args = Args }) -> - {Result, State1} = - case needs_view_update(ReqVer, View) of - true -> - View1 = group_to_view(read_group(GroupName)), - {callback_view_changed(Args, Module, View, View1), - check_neighbours(State #state { view = View1 })}; - false -> - {ok, State} - end, - handle_callback_result( - if_callback_success( - Result, fun handle_msg_true/3, fun handle_msg_false/3, Msg, State1)); - -handle_cast({broadcast, _Msg}, State = #state { members_state = undefined }) -> - noreply(State); - -handle_cast({broadcast, Msg}, - State = #state { self = Self, - right = {Self, undefined}, - module = Module, - callback_args = Args }) -> - handle_callback_result({Module:handle_msg(Args, Self, Msg), State}); - -handle_cast({broadcast, Msg}, State) -> - internal_broadcast(Msg, none, State); - -handle_cast(join, State = #state { self = Self, - group_name = GroupName, - members_state = undefined, - module = Module, - callback_args = Args }) -> - View = join_group(Self, GroupName), - MembersState = - case alive_view_members(View) of - [Self] -> blank_member_state(); - _ -> undefined - end, - State1 = check_neighbours(State #state { view = View, - members_state = MembersState }), - handle_callback_result( - {Module:joined(Args, all_known_members(View)), State1}); - -handle_cast(leave, State) -> - {stop, normal, State}; - -handle_cast(flush, State) -> - noreply( - flush_broadcast_buffer(State #state { broadcast_timer = undefined })). - - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #state { self = Self, - left = Left, - right = Right, - group_name = GroupName, - view = View, - module = Module, - callback_args = Args, - confirms = Confirms }) -> - Member = case {Left, Right} of - {{Member1, MRef}, _} -> Member1; - {_, {Member1, MRef}} -> Member1; - _ -> undefined - end, - case Member of - undefined -> - noreply(State); - _ -> - View1 = - group_to_view(record_dead_member_in_group(Member, GroupName)), - State1 = State #state { view = View1 }, - {Result, State2} = - case alive_view_members(View1) of - [Self] -> - maybe_erase_aliases( - State1 #state { - members_state = blank_member_state(), - confirms = purge_confirms(Confirms) }); - _ -> - %% here we won't be pointing out any deaths: - %% the concern is that there maybe births - %% which we'd otherwise miss. - {callback_view_changed(Args, Module, View, View1), - State1} - end, - handle_callback_result({Result, check_neighbours(State2)}) - end. - - -terminate(Reason, State = #state { module = Module, - callback_args = Args }) -> - flush_broadcast_buffer(State), - Module:terminate(Args, Reason). - - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -prioritise_cast(flush, _State) -> 1; -prioritise_cast(_ , _State) -> 0. - -prioritise_info({'DOWN', _MRef, process, _Pid, _Reason}, _State) -> 1; -prioritise_info(_ , _State) -> 0. - - -handle_msg(check_neighbours, State) -> - %% no-op - it's already been done by the calling handle_cast - {ok, State}; - -handle_msg({catchup, Left, MembersStateLeft}, - State = #state { self = Self, - left = {Left, _MRefL}, - right = {Right, _MRefR}, - view = View, - members_state = undefined }) -> - ok = send_right(Right, View, {catchup, Self, MembersStateLeft}), - MembersStateLeft1 = build_members_state(MembersStateLeft), - {ok, State #state { members_state = MembersStateLeft1 }}; - -handle_msg({catchup, Left, MembersStateLeft}, - State = #state { self = Self, - left = {Left, _MRefL}, - view = View, - members_state = MembersState }) - when MembersState =/= undefined -> - MembersStateLeft1 = build_members_state(MembersStateLeft), - AllMembers = lists:usort(?DICT:fetch_keys(MembersState) ++ - ?DICT:fetch_keys(MembersStateLeft1)), - {MembersState1, Activity} = - lists:foldl( - fun (Id, MembersStateActivity) -> - #member { pending_ack = PALeft, last_ack = LA } = - find_member_or_blank(Id, MembersStateLeft1), - with_member_acc( - fun (#member { pending_ack = PA } = Member, Activity1) -> - case is_member_alias(Id, Self, View) of - true -> - {_AcksInFlight, Pubs, _PA1} = - find_prefix_common_suffix(PALeft, PA), - {Member #member { last_ack = LA }, - activity_cons(Id, pubs_from_queue(Pubs), - [], Activity1)}; - false -> - {Acks, _Common, Pubs} = - find_prefix_common_suffix(PA, PALeft), - {Member, - activity_cons(Id, pubs_from_queue(Pubs), - acks_from_queue(Acks), - Activity1)} - end - end, Id, MembersStateActivity) - end, {MembersState, activity_nil()}, AllMembers), - handle_msg({activity, Left, activity_finalise(Activity)}, - State #state { members_state = MembersState1 }); - -handle_msg({catchup, _NotLeft, _MembersState}, State) -> - {ok, State}; - -handle_msg({activity, Left, Activity}, - State = #state { self = Self, - left = {Left, _MRefL}, - view = View, - members_state = MembersState, - confirms = Confirms }) - when MembersState =/= undefined -> - {MembersState1, {Confirms1, Activity1}} = - lists:foldl( - fun ({Id, Pubs, Acks}, MembersStateConfirmsActivity) -> - with_member_acc( - fun (Member = #member { pending_ack = PA, - last_pub = LP, - last_ack = LA }, - {Confirms2, Activity2}) -> - case is_member_alias(Id, Self, View) of - true -> - {ToAck, PA1} = - find_common(queue_from_pubs(Pubs), PA, - queue:new()), - LA1 = last_ack(Acks, LA), - AckNums = acks_from_queue(ToAck), - Confirms3 = maybe_confirm( - Self, Id, Confirms2, AckNums), - {Member #member { pending_ack = PA1, - last_ack = LA1 }, - {Confirms3, - activity_cons( - Id, [], AckNums, Activity2)}}; - false -> - PA1 = apply_acks(Acks, join_pubs(PA, Pubs)), - LA1 = last_ack(Acks, LA), - LP1 = last_pub(Pubs, LP), - {Member #member { pending_ack = PA1, - last_pub = LP1, - last_ack = LA1 }, - {Confirms2, - activity_cons(Id, Pubs, Acks, Activity2)}} - end - end, Id, MembersStateConfirmsActivity) - end, {MembersState, {Confirms, activity_nil()}}, Activity), - State1 = State #state { members_state = MembersState1, - confirms = Confirms1 }, - Activity3 = activity_finalise(Activity1), - {Result, State2} = maybe_erase_aliases(State1), - ok = maybe_send_activity(Activity3, State2), - if_callback_success( - Result, fun activity_true/3, fun activity_false/3, Activity3, State2); - -handle_msg({activity, _NotLeft, _Activity}, State) -> - {ok, State}. - - -noreply(State) -> - {noreply, ensure_broadcast_timer(State), hibernate}. - -reply(Reply, State) -> - {reply, Reply, ensure_broadcast_timer(State), hibernate}. - -ensure_broadcast_timer(State = #state { broadcast_buffer = [], - broadcast_timer = undefined }) -> - State; -ensure_broadcast_timer(State = #state { broadcast_buffer = [], - broadcast_timer = TRef }) -> - timer:cancel(TRef), - State #state { broadcast_timer = undefined }; -ensure_broadcast_timer(State = #state { broadcast_timer = undefined }) -> - {ok, TRef} = timer:apply_after(?BROADCAST_TIMER, ?MODULE, flush, [self()]), - State #state { broadcast_timer = TRef }; -ensure_broadcast_timer(State) -> - State. - -internal_broadcast(Msg, From, State = #state { self = Self, - pub_count = PubCount, - module = Module, - confirms = Confirms, - callback_args = Args, - broadcast_buffer = Buffer }) -> - Result = Module:handle_msg(Args, Self, Msg), - Buffer1 = [{PubCount, Msg} | Buffer], - Confirms1 = case From of - none -> Confirms; - _ -> queue:in({PubCount, From}, Confirms) - end, - State1 = State #state { pub_count = PubCount + 1, - confirms = Confirms1, - broadcast_buffer = Buffer1 }, - case From =/= none of - true -> - handle_callback_result({Result, flush_broadcast_buffer(State1)}); - false -> - handle_callback_result( - {Result, State1 #state { broadcast_buffer = Buffer1 }}) - end. - -flush_broadcast_buffer(State = #state { broadcast_buffer = [] }) -> - State; -flush_broadcast_buffer(State = #state { self = Self, - members_state = MembersState, - broadcast_buffer = Buffer }) -> - Pubs = lists:reverse(Buffer), - Activity = activity_cons(Self, Pubs, [], activity_nil()), - ok = maybe_send_activity(activity_finalise(Activity), State), - MembersState1 = with_member( - fun (Member = #member { pending_ack = PA }) -> - PA1 = queue:join(PA, queue:from_list(Pubs)), - Member #member { pending_ack = PA1 } - end, Self, MembersState), - State #state { members_state = MembersState1, - broadcast_buffer = [] }. - - -%% --------------------------------------------------------------------------- -%% View construction and inspection -%% --------------------------------------------------------------------------- - -needs_view_update(ReqVer, {Ver, _View}) -> - Ver < ReqVer. - -view_version({Ver, _View}) -> - Ver. - -is_member_alive({dead, _Member}) -> false; -is_member_alive(_) -> true. - -is_member_alias(Self, Self, _View) -> - true; -is_member_alias(Member, Self, View) -> - ?SETS:is_element(Member, - ((fetch_view_member(Self, View)) #view_member.aliases)). - -dead_member_id({dead, Member}) -> Member. - -store_view_member(VMember = #view_member { id = Id }, {Ver, View}) -> - {Ver, ?DICT:store(Id, VMember, View)}. - -with_view_member(Fun, View, Id) -> - store_view_member(Fun(fetch_view_member(Id, View)), View). - -fetch_view_member(Id, {_Ver, View}) -> - ?DICT:fetch(Id, View). - -find_view_member(Id, {_Ver, View}) -> - ?DICT:find(Id, View). - -blank_view(Ver) -> - {Ver, ?DICT:new()}. - -alive_view_members({_Ver, View}) -> - ?DICT:fetch_keys(View). - -all_known_members({_Ver, View}) -> - ?DICT:fold( - fun (Member, #view_member { aliases = Aliases }, Acc) -> - ?SETS:to_list(Aliases) ++ [Member | Acc] - end, [], View). - -group_to_view(#gm_group { members = Members, version = Ver }) -> - Alive = lists:filter(fun is_member_alive/1, Members), - [_|_] = Alive, %% ASSERTION - can't have all dead members - add_aliases(link_view(Alive ++ Alive ++ Alive, blank_view(Ver)), Members). - -link_view([Left, Middle, Right | Rest], View) -> - case find_view_member(Middle, View) of - error -> - link_view( - [Middle, Right | Rest], - store_view_member(#view_member { id = Middle, - aliases = ?SETS:new(), - left = Left, - right = Right }, View)); - {ok, _} -> - View - end; -link_view(_, View) -> - View. - -add_aliases(View, Members) -> - Members1 = ensure_alive_suffix(Members), - {EmptyDeadSet, View1} = - lists:foldl( - fun (Member, {DeadAcc, ViewAcc}) -> - case is_member_alive(Member) of - true -> - {?SETS:new(), - with_view_member( - fun (VMember = - #view_member { aliases = Aliases }) -> - VMember #view_member { - aliases = ?SETS:union(Aliases, DeadAcc) } - end, ViewAcc, Member)}; - false -> - {?SETS:add_element(dead_member_id(Member), DeadAcc), - ViewAcc} - end - end, {?SETS:new(), View}, Members1), - 0 = ?SETS:size(EmptyDeadSet), %% ASSERTION - View1. - -ensure_alive_suffix(Members) -> - queue:to_list(ensure_alive_suffix1(queue:from_list(Members))). - -ensure_alive_suffix1(MembersQ) -> - {{value, Member}, MembersQ1} = queue:out_r(MembersQ), - case is_member_alive(Member) of - true -> MembersQ; - false -> ensure_alive_suffix1(queue:in_r(Member, MembersQ1)) - end. - - -%% --------------------------------------------------------------------------- -%% View modification -%% --------------------------------------------------------------------------- - -join_group(Self, GroupName) -> - join_group(Self, GroupName, read_group(GroupName)). - -join_group(Self, GroupName, {error, not_found}) -> - join_group(Self, GroupName, prune_or_create_group(Self, GroupName)); -join_group(Self, _GroupName, #gm_group { members = [Self] } = Group) -> - group_to_view(Group); -join_group(Self, GroupName, #gm_group { members = Members } = Group) -> - case lists:member(Self, Members) of - true -> - group_to_view(Group); - false -> - case lists:filter(fun is_member_alive/1, Members) of - [] -> - join_group(Self, GroupName, - prune_or_create_group(Self, GroupName)); - Alive -> - Left = lists:nth(random:uniform(length(Alive)), Alive), - Handler = - fun () -> - join_group( - Self, GroupName, - record_dead_member_in_group(Left, GroupName)) - end, - try - case gen_server2:call( - Left, {add_on_right, Self}, infinity) of - {ok, Group1} -> group_to_view(Group1); - not_ready -> join_group(Self, GroupName) - end - catch - exit:{R, _} - when R =:= noproc; R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} - when R =:= nodedown; R =:= shutdown -> - Handler() - end - end - end. - -read_group(GroupName) -> - case mnesia:dirty_read(?GROUP_TABLE, GroupName) of - [] -> {error, not_found}; - [Group] -> Group - end. - -prune_or_create_group(Self, GroupName) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> GroupNew = #gm_group { name = GroupName, - members = [Self], - version = 0 }, - case mnesia:read({?GROUP_TABLE, GroupName}) of - [] -> - mnesia:write(GroupNew), - GroupNew; - [Group1 = #gm_group { members = Members }] -> - case lists:any(fun is_member_alive/1, Members) of - true -> Group1; - false -> mnesia:write(GroupNew), - GroupNew - end - end - end), - Group. - -record_dead_member_in_group(Member, GroupName) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> [Group1 = #gm_group { members = Members, version = Ver }] = - mnesia:read({?GROUP_TABLE, GroupName}), - case lists:splitwith( - fun (Member1) -> Member1 =/= Member end, Members) of - {_Members1, []} -> %% not found - already recorded dead - Group1; - {Members1, [Member | Members2]} -> - Members3 = Members1 ++ [{dead, Member} | Members2], - Group2 = Group1 #gm_group { members = Members3, - version = Ver + 1 }, - mnesia:write(Group2), - Group2 - end - end), - Group. - -record_new_member_in_group(GroupName, Left, NewMember, Fun) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> - [#gm_group { members = Members, version = Ver } = Group1] = - mnesia:read({?GROUP_TABLE, GroupName}), - {Prefix, [Left | Suffix]} = - lists:splitwith(fun (M) -> M =/= Left end, Members), - Members1 = Prefix ++ [Left, NewMember | Suffix], - Group2 = Group1 #gm_group { members = Members1, - version = Ver + 1 }, - ok = Fun(Group2), - mnesia:write(Group2), - Group2 - end), - Group. - -erase_members_in_group(Members, GroupName) -> - DeadMembers = [{dead, Id} || Id <- Members], - {atomic, Group} = - mnesia:sync_transaction( - fun () -> - [Group1 = #gm_group { members = [_|_] = Members1, - version = Ver }] = - mnesia:read({?GROUP_TABLE, GroupName}), - case Members1 -- DeadMembers of - Members1 -> Group1; - Members2 -> Group2 = - Group1 #gm_group { members = Members2, - version = Ver + 1 }, - mnesia:write(Group2), - Group2 - end - end), - Group. - -maybe_erase_aliases(State = #state { self = Self, - group_name = GroupName, - view = View, - members_state = MembersState, - module = Module, - callback_args = Args }) -> - #view_member { aliases = Aliases } = fetch_view_member(Self, View), - {Erasable, MembersState1} - = ?SETS:fold( - fun (Id, {ErasableAcc, MembersStateAcc} = Acc) -> - #member { last_pub = LP, last_ack = LA } = - find_member_or_blank(Id, MembersState), - case can_erase_view_member(Self, Id, LA, LP) of - true -> {[Id | ErasableAcc], - erase_member(Id, MembersStateAcc)}; - false -> Acc - end - end, {[], MembersState}, Aliases), - State1 = State #state { members_state = MembersState1 }, - case Erasable of - [] -> {ok, State1}; - _ -> View1 = group_to_view( - erase_members_in_group(Erasable, GroupName)), - {callback_view_changed(Args, Module, View, View1), - State1 #state { view = View1 }} - end. - -can_erase_view_member(Self, Self, _LA, _LP) -> false; -can_erase_view_member(_Self, _Id, N, N) -> true; -can_erase_view_member(_Self, _Id, _LA, _LP) -> false. - - -%% --------------------------------------------------------------------------- -%% View monitoring and maintanence -%% --------------------------------------------------------------------------- - -ensure_neighbour(_Ver, Self, {Self, undefined}, Self) -> - {Self, undefined}; -ensure_neighbour(Ver, Self, {Self, undefined}, RealNeighbour) -> - ok = gen_server2:cast(RealNeighbour, {?TAG, Ver, check_neighbours}), - {RealNeighbour, maybe_monitor(RealNeighbour, Self)}; -ensure_neighbour(_Ver, _Self, {RealNeighbour, MRef}, RealNeighbour) -> - {RealNeighbour, MRef}; -ensure_neighbour(Ver, Self, {RealNeighbour, MRef}, Neighbour) -> - true = erlang:demonitor(MRef), - Msg = {?TAG, Ver, check_neighbours}, - ok = gen_server2:cast(RealNeighbour, Msg), - ok = case Neighbour of - Self -> ok; - _ -> gen_server2:cast(Neighbour, Msg) - end, - {Neighbour, maybe_monitor(Neighbour, Self)}. - -maybe_monitor(Self, Self) -> - undefined; -maybe_monitor(Other, _Self) -> - erlang:monitor(process, Other). - -check_neighbours(State = #state { self = Self, - left = Left, - right = Right, - view = View, - broadcast_buffer = Buffer }) -> - #view_member { left = VLeft, right = VRight } - = fetch_view_member(Self, View), - Ver = view_version(View), - Left1 = ensure_neighbour(Ver, Self, Left, VLeft), - Right1 = ensure_neighbour(Ver, Self, Right, VRight), - Buffer1 = case Right1 of - {Self, undefined} -> []; - _ -> Buffer - end, - State1 = State #state { left = Left1, right = Right1, - broadcast_buffer = Buffer1 }, - ok = maybe_send_catchup(Right, State1), - State1. - -maybe_send_catchup(Right, #state { right = Right }) -> - ok; -maybe_send_catchup(_Right, #state { self = Self, - right = {Self, undefined} }) -> - ok; -maybe_send_catchup(_Right, #state { members_state = undefined }) -> - ok; -maybe_send_catchup(_Right, #state { self = Self, - right = {Right, _MRef}, - view = View, - members_state = MembersState }) -> - send_right(Right, View, - {catchup, Self, prepare_members_state(MembersState)}). - - -%% --------------------------------------------------------------------------- -%% Catch_up delta detection -%% --------------------------------------------------------------------------- - -find_prefix_common_suffix(A, B) -> - {Prefix, A1} = find_prefix(A, B, queue:new()), - {Common, Suffix} = find_common(A1, B, queue:new()), - {Prefix, Common, Suffix}. - -%% Returns the elements of A that occur before the first element of B, -%% plus the remainder of A. -find_prefix(A, B, Prefix) -> - case {queue:out(A), queue:out(B)} of - {{{value, Val}, _A1}, {{value, Val}, _B1}} -> - {Prefix, A}; - {{empty, A1}, {{value, _A}, _B1}} -> - {Prefix, A1}; - {{{value, {NumA, _MsgA} = Val}, A1}, - {{value, {NumB, _MsgB}}, _B1}} when NumA < NumB -> - find_prefix(A1, B, queue:in(Val, Prefix)); - {_, {empty, _B1}} -> - {A, Prefix} %% Prefix well be empty here - end. - -%% A should be a prefix of B. Returns the commonality plus the -%% remainder of B. -find_common(A, B, Common) -> - case {queue:out(A), queue:out(B)} of - {{{value, Val}, A1}, {{value, Val}, B1}} -> - find_common(A1, B1, queue:in(Val, Common)); - {{empty, _A}, _} -> - {Common, B} - end. - - -%% --------------------------------------------------------------------------- -%% Members helpers -%% --------------------------------------------------------------------------- - -with_member(Fun, Id, MembersState) -> - store_member( - Id, Fun(find_member_or_blank(Id, MembersState)), MembersState). - -with_member_acc(Fun, Id, {MembersState, Acc}) -> - {MemberState, Acc1} = Fun(find_member_or_blank(Id, MembersState), Acc), - {store_member(Id, MemberState, MembersState), Acc1}. - -find_member_or_blank(Id, MembersState) -> - case ?DICT:find(Id, MembersState) of - {ok, Result} -> Result; - error -> blank_member() - end. - -erase_member(Id, MembersState) -> - ?DICT:erase(Id, MembersState). - -blank_member() -> - #member { pending_ack = queue:new(), last_pub = -1, last_ack = -1 }. - -blank_member_state() -> - ?DICT:new(). - -store_member(Id, MemberState, MembersState) -> - ?DICT:store(Id, MemberState, MembersState). - -prepare_members_state(MembersState) -> - ?DICT:to_list(MembersState). - -build_members_state(MembersStateList) -> - ?DICT:from_list(MembersStateList). - - -%% --------------------------------------------------------------------------- -%% Activity assembly -%% --------------------------------------------------------------------------- - -activity_nil() -> - queue:new(). - -activity_cons(_Id, [], [], Tail) -> - Tail; -activity_cons(Sender, Pubs, Acks, Tail) -> - queue:in({Sender, Pubs, Acks}, Tail). - -activity_finalise(Activity) -> - queue:to_list(Activity). - -maybe_send_activity([], _State) -> - ok; -maybe_send_activity(Activity, #state { self = Self, - right = {Right, _MRefR}, - view = View }) -> - send_right(Right, View, {activity, Self, Activity}). - -send_right(Right, View, Msg) -> - ok = gen_server2:cast(Right, {?TAG, view_version(View), Msg}). - -callback(Args, Module, Activity) -> - lists:foldl( - fun ({Id, Pubs, _Acks}, ok) -> - lists:foldl(fun ({_PubNum, Pub}, ok) -> - Module:handle_msg(Args, Id, Pub); - (_, Error) -> - Error - end, ok, Pubs); - (_, Error) -> - Error - end, ok, Activity). - -callback_view_changed(Args, Module, OldView, NewView) -> - OldMembers = all_known_members(OldView), - NewMembers = all_known_members(NewView), - Births = NewMembers -- OldMembers, - Deaths = OldMembers -- NewMembers, - case {Births, Deaths} of - {[], []} -> ok; - _ -> Module:members_changed(Args, Births, Deaths) - end. - -handle_callback_result({Result, State}) -> - if_callback_success( - Result, fun no_reply_true/3, fun no_reply_false/3, undefined, State); -handle_callback_result({Result, Reply, State}) -> - if_callback_success( - Result, fun reply_true/3, fun reply_false/3, Reply, State). - -no_reply_true (_Result, _Undefined, State) -> noreply(State). -no_reply_false({stop, Reason}, _Undefined, State) -> {stop, Reason, State}. - -reply_true (_Result, Reply, State) -> reply(Reply, State). -reply_false({stop, Reason}, Reply, State) -> {stop, Reason, Reply, State}. - -handle_msg_true (_Result, Msg, State) -> handle_msg(Msg, State). -handle_msg_false(Result, _Msg, State) -> {Result, State}. - -activity_true(_Result, Activity, State = #state { module = Module, - callback_args = Args }) -> - {callback(Args, Module, Activity), State}. -activity_false(Result, _Activity, State) -> - {Result, State}. - -if_callback_success(ok, True, _False, Arg, State) -> - True(ok, Arg, State); -if_callback_success( - {become, Module, Args} = Result, True, _False, Arg, State) -> - True(Result, Arg, State #state { module = Module, - callback_args = Args }); -if_callback_success({stop, _Reason} = Result, _True, False, Arg, State) -> - False(Result, Arg, State). - -maybe_confirm(_Self, _Id, Confirms, []) -> - Confirms; -maybe_confirm(Self, Self, Confirms, [PubNum | PubNums]) -> - case queue:out(Confirms) of - {empty, _Confirms} -> - Confirms; - {{value, {PubNum, From}}, Confirms1} -> - gen_server2:reply(From, ok), - maybe_confirm(Self, Self, Confirms1, PubNums); - {{value, {PubNum1, _From}}, _Confirms} when PubNum1 > PubNum -> - maybe_confirm(Self, Self, Confirms, PubNums) - end; -maybe_confirm(_Self, _Id, Confirms, _PubNums) -> - Confirms. - -purge_confirms(Confirms) -> - [gen_server2:reply(From, ok) || {_PubNum, From} <- queue:to_list(Confirms)], - queue:new(). - - -%% --------------------------------------------------------------------------- -%% Msg transformation -%% --------------------------------------------------------------------------- - -acks_from_queue(Q) -> - [PubNum || {PubNum, _Msg} <- queue:to_list(Q)]. - -pubs_from_queue(Q) -> - queue:to_list(Q). - -queue_from_pubs(Pubs) -> - queue:from_list(Pubs). - -apply_acks([], Pubs) -> - Pubs; -apply_acks(List, Pubs) -> - {_, Pubs1} = queue:split(length(List), Pubs), - Pubs1. - -join_pubs(Q, []) -> Q; -join_pubs(Q, Pubs) -> queue:join(Q, queue_from_pubs(Pubs)). - -last_ack([], LA) -> - LA; -last_ack(List, LA) -> - LA1 = lists:last(List), - true = LA1 > LA, %% ASSERTION - LA1. - -last_pub([], LP) -> - LP; -last_pub(List, LP) -> - {PubNum, _Msg} = lists:last(List), - true = PubNum > LP, %% ASSERTION - PubNum. diff --git a/src/gm_soak_test.erl b/src/gm_soak_test.erl deleted file mode 100644 index dae42ac7..00000000 --- a/src/gm_soak_test.erl +++ /dev/null @@ -1,131 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_soak_test). - --export([test/0]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - -%% --------------------------------------------------------------------------- -%% Soak test -%% --------------------------------------------------------------------------- - -get_state() -> - get(state). - -with_state(Fun) -> - put(state, Fun(get_state())). - -inc() -> - case 1 + get(count) of - 100000 -> Now = now(), - Start = put(ts, Now), - Diff = timer:now_diff(Now, Start), - Rate = 100000 / (Diff / 1000000), - io:format("~p seeing ~p msgs/sec~n", [self(), Rate]), - put(count, 0); - N -> put(count, N) - end. - -joined([], Members) -> - io:format("Joined ~p (~p members)~n", [self(), length(Members)]), - put(state, dict:from_list([{Member, empty} || Member <- Members])), - put(count, 0), - put(ts, now()), - ok. - -members_changed([], Births, Deaths) -> - with_state( - fun (State) -> - State1 = - lists:foldl( - fun (Born, StateN) -> - false = dict:is_key(Born, StateN), - dict:store(Born, empty, StateN) - end, State, Births), - lists:foldl( - fun (Died, StateN) -> - true = dict:is_key(Died, StateN), - dict:store(Died, died, StateN) - end, State1, Deaths) - end), - ok. - -handle_msg([], From, {test_msg, Num}) -> - inc(), - with_state( - fun (State) -> - ok = case dict:find(From, State) of - {ok, died} -> - exit({{from, From}, - {received_posthumous_delivery, Num}}); - {ok, empty} -> ok; - {ok, Num} -> ok; - {ok, Num1} when Num < Num1 -> - exit({{from, From}, - {duplicate_delivery_of, Num1}, - {expecting, Num}}); - {ok, Num1} -> - exit({{from, From}, - {missing_delivery_of, Num}, - {received_early, Num1}}); - error -> - exit({{from, From}, - {received_premature_delivery, Num}}) - end, - dict:store(From, Num + 1, State) - end), - ok. - -terminate([], Reason) -> - io:format("Left ~p (~p)~n", [self(), Reason]), - ok. - -spawn_member() -> - spawn_link( - fun () -> - {MegaSecs, Secs, MicroSecs} = now(), - random:seed(MegaSecs, Secs, MicroSecs), - %% start up delay of no more than 10 seconds - timer:sleep(random:uniform(10000)), - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, []), - Start = random:uniform(10000), - send_loop(Pid, Start, Start + random:uniform(10000)), - gm:leave(Pid), - spawn_more() - end). - -spawn_more() -> - [spawn_member() || _ <- lists:seq(1, 4 - random:uniform(4))]. - -send_loop(_Pid, Target, Target) -> - ok; -send_loop(Pid, Count, Target) when Target > Count -> - case random:uniform(3) of - 3 -> gm:confirmed_broadcast(Pid, {test_msg, Count}); - _ -> gm:broadcast(Pid, {test_msg, Count}) - end, - timer:sleep(random:uniform(5) - 1), %% sleep up to 4 ms - send_loop(Pid, Count + 1, Target). - -test() -> - ok = gm:create_tables(), - spawn_member(), - spawn_member(). diff --git a/src/gm_speed_test.erl b/src/gm_speed_test.erl deleted file mode 100644 index defb0f29..00000000 --- a/src/gm_speed_test.erl +++ /dev/null @@ -1,82 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_speed_test). - --export([test/3]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). --export([wile_e_coyote/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - -%% callbacks - -joined(Owner, _Members) -> - Owner ! joined, - ok. - -members_changed(_Owner, _Births, _Deaths) -> - ok. - -handle_msg(Owner, _From, ping) -> - Owner ! ping, - ok. - -terminate(Owner, _Reason) -> - Owner ! terminated, - ok. - -%% other - -wile_e_coyote(Time, WriteUnit) -> - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, self()), - receive joined -> ok end, - timer:sleep(1000), %% wait for all to join - timer:send_after(Time, stop), - Start = now(), - {Sent, Received} = loop(Pid, WriteUnit, 0, 0), - End = now(), - ok = gm:leave(Pid), - receive terminated -> ok end, - Elapsed = timer:now_diff(End, Start) / 1000000, - io:format("Sending rate: ~p msgs/sec~nReceiving rate: ~p msgs/sec~n~n", - [Sent/Elapsed, Received/Elapsed]), - ok. - -loop(Pid, WriteUnit, Sent, Received) -> - case read(Received) of - {stop, Received1} -> {Sent, Received1}; - {ok, Received1} -> ok = write(Pid, WriteUnit), - loop(Pid, WriteUnit, Sent + WriteUnit, Received1) - end. - -read(Count) -> - receive - ping -> read(Count + 1); - stop -> {stop, Count} - after 5 -> - {ok, Count} - end. - -write(_Pid, 0) -> ok; -write(Pid, N) -> ok = gm:broadcast(Pid, ping), - write(Pid, N - 1). - -test(Time, WriteUnit, Nodes) -> - ok = gm:create_tables(), - [spawn(Node, ?MODULE, wile_e_coyote, [Time, WriteUnit]) || Node <- Nodes]. diff --git a/src/gm_tests.erl b/src/gm_tests.erl deleted file mode 100644 index ca0ffd64..00000000 --- a/src/gm_tests.erl +++ /dev/null @@ -1,182 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_tests). - --export([test_join_leave/0, - test_broadcast/0, - test_confirmed_broadcast/0, - test_member_death/0, - test_receive_in_order/0, - all_tests/0]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - --define(RECEIVE_OR_THROW(Body, Bool, Error), - receive Body -> - true = Bool, - passed - after 1000 -> - throw(Error) - end). - -joined(Pid, Members) -> - Pid ! {joined, self(), Members}, - ok. - -members_changed(Pid, Births, Deaths) -> - Pid ! {members_changed, self(), Births, Deaths}, - ok. - -handle_msg(Pid, From, Msg) -> - Pid ! {msg, self(), From, Msg}, - ok. - -terminate(Pid, Reason) -> - Pid ! {termination, self(), Reason}, - ok. - -%% --------------------------------------------------------------------------- -%% Functional tests -%% --------------------------------------------------------------------------- - -all_tests() -> - passed = test_join_leave(), - passed = test_broadcast(), - passed = test_confirmed_broadcast(), - passed = test_member_death(), - passed = test_receive_in_order(), - passed. - -test_join_leave() -> - with_two_members(fun (_Pid, _Pid2) -> passed end). - -test_broadcast() -> - test_broadcast(fun gm:broadcast/2). - -test_confirmed_broadcast() -> - test_broadcast(fun gm:confirmed_broadcast/2). - -test_member_death() -> - with_two_members( - fun (Pid, Pid2) -> - {ok, Pid3} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid3, [Pid, Pid2, Pid3], - timeout_joining_gm_group_3), - passed = receive_birth(Pid, Pid3, timeout_waiting_for_birth_3_1), - passed = receive_birth(Pid2, Pid3, timeout_waiting_for_birth_3_2), - - unlink(Pid3), - exit(Pid3, kill), - - %% Have to do some broadcasts to ensure that all members - %% find out about the death. - passed = (test_broadcast_fun(fun gm:confirmed_broadcast/2))( - Pid, Pid2), - - passed = receive_death(Pid, Pid3, timeout_waiting_for_death_3_1), - passed = receive_death(Pid2, Pid3, timeout_waiting_for_death_3_2), - - passed - end). - -test_receive_in_order() -> - with_two_members( - fun (Pid, Pid2) -> - Numbers = lists:seq(1,1000), - [begin ok = gm:broadcast(Pid, N), ok = gm:broadcast(Pid2, N) end - || N <- Numbers], - passed = receive_numbers( - Pid, Pid, {timeout_for_msgs, Pid, Pid}, Numbers), - passed = receive_numbers( - Pid, Pid2, {timeout_for_msgs, Pid, Pid2}, Numbers), - passed = receive_numbers( - Pid2, Pid, {timeout_for_msgs, Pid2, Pid}, Numbers), - passed = receive_numbers( - Pid2, Pid2, {timeout_for_msgs, Pid2, Pid2}, Numbers), - passed - end). - -test_broadcast(Fun) -> - with_two_members(test_broadcast_fun(Fun)). - -test_broadcast_fun(Fun) -> - fun (Pid, Pid2) -> - ok = Fun(Pid, magic_message), - passed = receive_or_throw({msg, Pid, Pid, magic_message}, - timeout_waiting_for_msg), - passed = receive_or_throw({msg, Pid2, Pid, magic_message}, - timeout_waiting_for_msg) - end. - -with_two_members(Fun) -> - ok = gm:create_tables(), - - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid, [Pid], timeout_joining_gm_group_1), - - {ok, Pid2} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid2, [Pid, Pid2], timeout_joining_gm_group_2), - passed = receive_birth(Pid, Pid2, timeout_waiting_for_birth_2), - - passed = Fun(Pid, Pid2), - - ok = gm:leave(Pid), - passed = receive_death(Pid2, Pid, timeout_waiting_for_death_1), - passed = - receive_termination(Pid, normal, timeout_waiting_for_termination_1), - - ok = gm:leave(Pid2), - passed = - receive_termination(Pid2, normal, timeout_waiting_for_termination_2), - - receive X -> throw({unexpected_message, X}) - after 0 -> passed - end. - -receive_or_throw(Pattern, Error) -> - ?RECEIVE_OR_THROW(Pattern, true, Error). - -receive_birth(From, Born, Error) -> - ?RECEIVE_OR_THROW({members_changed, From, Birth, Death}, - ([Born] == Birth) andalso ([] == Death), - Error). - -receive_death(From, Died, Error) -> - ?RECEIVE_OR_THROW({members_changed, From, Birth, Death}, - ([] == Birth) andalso ([Died] == Death), - Error). - -receive_joined(From, Members, Error) -> - ?RECEIVE_OR_THROW({joined, From, Members1}, - lists:usort(Members) == lists:usort(Members1), - Error). - -receive_termination(From, Reason, Error) -> - ?RECEIVE_OR_THROW({termination, From, Reason1}, - Reason == Reason1, - Error). - -receive_numbers(_Pid, _Sender, _Error, []) -> - passed; -receive_numbers(Pid, Sender, Error, [N | Numbers]) -> - ?RECEIVE_OR_THROW({msg, Pid, Sender, M}, - M == N, - Error), - receive_numbers(Pid, Sender, Error, Numbers). diff --git a/src/pg_local.erl b/src/pg_local.erl deleted file mode 100644 index c9c3a3a7..00000000 --- a/src/pg_local.erl +++ /dev/null @@ -1,213 +0,0 @@ -%% This file is a copy of pg2.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) Process groups are node-local only. -%% -%% 2) Groups are created/deleted implicitly. -%% -%% 3) 'join' and 'leave' are asynchronous. -%% -%% 4) the type specs of the exported non-callback functions have been -%% extracted into a separate, guarded section, and rewritten in -%% old-style spec syntax, for better compatibility with older -%% versions of Erlang/OTP. The remaining type specs have been -%% removed. - -%% All modifications are (C) 2010-2011 VMware, Inc. - -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(pg_local). - --export([join/2, leave/2, get_members/1]). --export([sync/0]). %% intended for testing only; not part of official API --export([start/0, start_link/0, init/1, handle_call/3, handle_cast/2, - handle_info/2, terminate/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(name() :: term()). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(join/2 :: (name(), pid()) -> 'ok'). --spec(leave/2 :: (name(), pid()) -> 'ok'). --spec(get_members/1 :: (name()) -> [pid()]). - --spec(sync/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%%% As of R13B03 monitors are used instead of links. - -%%% -%%% Exported functions -%%% - -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). - -start() -> - ensure_started(). - -join(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {join, Name, Pid}). - -leave(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {leave, Name, Pid}). - -get_members(Name) -> - ensure_started(), - group_members(Name). - -sync() -> - ensure_started(), - gen_server:call(?MODULE, sync, infinity). - -%%% -%%% Callback functions from gen_server -%%% - --record(state, {}). - -init([]) -> - pg_local_table = ets:new(pg_local_table, [ordered_set, protected, named_table]), - {ok, #state{}}. - -handle_call(sync, _From, S) -> - {reply, ok, S}; - -handle_call(Request, From, S) -> - error_logger:warning_msg("The pg_local server received an unexpected message:\n" - "handle_call(~p, ~p, _)\n", - [Request, From]), - {noreply, S}. - -handle_cast({join, Name, Pid}, S) -> - join_group(Name, Pid), - {noreply, S}; -handle_cast({leave, Name, Pid}, S) -> - leave_group(Name, Pid), - {noreply, S}; -handle_cast(_, S) -> - {noreply, S}. - -handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S) -> - member_died(MonitorRef), - {noreply, S}; -handle_info(_, S) -> - {noreply, S}. - -terminate(_Reason, _S) -> - true = ets:delete(pg_local_table), - ok. - -%%% -%%% Local functions -%%% - -%%% One ETS table, pg_local_table, is used for bookkeeping. The type of the -%%% table is ordered_set, and the fast matching of partially -%%% instantiated keys is used extensively. -%%% -%%% {{ref, Pid}, MonitorRef, Counter} -%%% {{ref, MonitorRef}, Pid} -%%% Each process has one monitor. Counter is incremented when the -%%% Pid joins some group. -%%% {{member, Name, Pid}, _} -%%% Pid is a member of group Name, GroupCounter is incremented when the -%%% Pid joins the group Name. -%%% {{pid, Pid, Name}} -%%% Pid is a member of group Name. - -member_died(Ref) -> - [{{ref, Ref}, Pid}] = ets:lookup(pg_local_table, {ref, Ref}), - Names = member_groups(Pid), - _ = [leave_group(Name, P) || - Name <- Names, - P <- member_in_group(Pid, Name)], - ok. - -join_group(Name, Pid) -> - Ref_Pid = {ref, Pid}, - try _ = ets:update_counter(pg_local_table, Ref_Pid, {3, +1}) - catch _:_ -> - Ref = erlang:monitor(process, Pid), - true = ets:insert(pg_local_table, {Ref_Pid, Ref, 1}), - true = ets:insert(pg_local_table, {{ref, Ref}, Pid}) - end, - Member_Name_Pid = {member, Name, Pid}, - try _ = ets:update_counter(pg_local_table, Member_Name_Pid, {2, +1}) - catch _:_ -> - true = ets:insert(pg_local_table, {Member_Name_Pid, 1}), - true = ets:insert(pg_local_table, {{pid, Pid, Name}}) - end. - -leave_group(Name, Pid) -> - Member_Name_Pid = {member, Name, Pid}, - try ets:update_counter(pg_local_table, Member_Name_Pid, {2, -1}) of - N -> - if - N =:= 0 -> - true = ets:delete(pg_local_table, {pid, Pid, Name}), - true = ets:delete(pg_local_table, Member_Name_Pid); - true -> - ok - end, - Ref_Pid = {ref, Pid}, - case ets:update_counter(pg_local_table, Ref_Pid, {3, -1}) of - 0 -> - [{Ref_Pid,Ref,0}] = ets:lookup(pg_local_table, Ref_Pid), - true = ets:delete(pg_local_table, {ref, Ref}), - true = ets:delete(pg_local_table, Ref_Pid), - true = erlang:demonitor(Ref, [flush]), - ok; - _ -> - ok - end - catch _:_ -> - ok - end. - -group_members(Name) -> - [P || - [P, N] <- ets:match(pg_local_table, {{member, Name, '$1'},'$2'}), - _ <- lists:seq(1, N)]. - -member_in_group(Pid, Name) -> - [{{member, Name, Pid}, N}] = ets:lookup(pg_local_table, {member, Name, Pid}), - lists:duplicate(N, Pid). - -member_groups(Pid) -> - [Name || [Name] <- ets:match(pg_local_table, {{pid, Pid, '$1'}})]. - -ensure_started() -> - case whereis(?MODULE) of - undefined -> - C = {pg_local, {?MODULE, start_link, []}, permanent, - 16#ffffffff, worker, [?MODULE]}, - supervisor:start_child(kernel_safe_sup, C); - PgLocalPid -> - {ok, PgLocalPid} - end. diff --git a/src/priority_queue.erl b/src/priority_queue.erl deleted file mode 100644 index 4a94b24b..00000000 --- a/src/priority_queue.erl +++ /dev/null @@ -1,176 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% Priority queues have essentially the same interface as ordinary -%% queues, except that a) there is an in/3 that takes a priority, and -%% b) we have only implemented the core API we need. -%% -%% Priorities should be integers - the higher the value the higher the -%% priority - but we don't actually check that. -%% -%% in/2 inserts items with priority 0. -%% -%% We optimise the case where a priority queue is being used just like -%% an ordinary queue. When that is the case we represent the priority -%% queue as an ordinary queue. We could just call into the 'queue' -%% module for that, but for efficiency we implement the relevant -%% functions directly in here, thus saving on inter-module calls and -%% eliminating a level of boxing. -%% -%% When the queue contains items with non-zero priorities, it is -%% represented as a sorted kv list with the inverted Priority as the -%% key and an ordinary queue as the value. Here again we use our own -%% ordinary queue implemention for efficiency, often making recursive -%% calls into the same function knowing that ordinary queues represent -%% a base case. - - --module(priority_queue). - --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(priority() :: integer()). --type(squeue() :: {queue, [any()], [any()]}). --type(pqueue() :: squeue() | {pqueue, [{priority(), squeue()}]}). - --spec(new/0 :: () -> pqueue()). --spec(is_queue/1 :: (any()) -> boolean()). --spec(is_empty/1 :: (pqueue()) -> boolean()). --spec(len/1 :: (pqueue()) -> non_neg_integer()). --spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). --spec(in/2 :: (any(), pqueue()) -> pqueue()). --spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> - {queue, [], []}. - -is_queue({queue, R, F}) when is_list(R), is_list(F) -> - true; -is_queue({pqueue, Queues}) when is_list(Queues) -> - lists:all(fun ({P, Q}) -> is_integer(P) andalso is_queue(Q) end, - Queues); -is_queue(_) -> - false. - -is_empty({queue, [], []}) -> - true; -is_empty(_) -> - false. - -len({queue, R, F}) when is_list(R), is_list(F) -> - length(R) + length(F); -len({pqueue, Queues}) -> - lists:sum([len(Q) || {_, Q} <- Queues]). - -to_list({queue, In, Out}) when is_list(In), is_list(Out) -> - [{0, V} || V <- Out ++ lists:reverse(In, [])]; -to_list({pqueue, Queues}) -> - [{-P, V} || {P, Q} <- Queues, {0, V} <- to_list(Q)]. - -in(Item, Q) -> - in(Item, 0, Q). - -in(X, 0, {queue, [_] = In, []}) -> - {queue, [X], In}; -in(X, 0, {queue, In, Out}) when is_list(In), is_list(Out) -> - {queue, [X|In], Out}; -in(X, Priority, _Q = {queue, [], []}) -> - in(X, Priority, {pqueue, []}); -in(X, Priority, Q = {queue, _, _}) -> - in(X, Priority, {pqueue, [{0, Q}]}); -in(X, Priority, {pqueue, Queues}) -> - P = -Priority, - {pqueue, case lists:keysearch(P, 1, Queues) of - {value, {_, Q}} -> - lists:keyreplace(P, 1, Queues, {P, in(X, Q)}); - false -> - lists:keysort(1, [{P, {queue, [X], []}} | Queues]) - end}. - -out({queue, [], []} = Q) -> - {empty, Q}; -out({queue, [V], []}) -> - {{value, V}, {queue, [], []}}; -out({queue, [Y|In], []}) -> - [V|Out] = lists:reverse(In, []), - {{value, V}, {queue, [Y], Out}}; -out({queue, In, [V]}) when is_list(In) -> - {{value,V}, r2f(In)}; -out({queue, In,[V|Out]}) when is_list(In) -> - {{value, V}, {queue, In, Out}}; -out({pqueue, [{P, Q} | Queues]}) -> - {R, Q1} = out(Q), - NewQ = case is_empty(Q1) of - true -> case Queues of - [] -> {queue, [], []}; - [{0, OnlyQ}] -> OnlyQ; - [_|_] -> {pqueue, Queues} - end; - false -> {pqueue, [{P, Q1} | Queues]} - end, - {R, NewQ}. - -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = lists:splitwith(fun ({P, _}) -> P < 0 end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - -r2f([]) -> {queue, [], []}; -r2f([_] = R) -> {queue, [], R}; -r2f([X,Y]) -> {queue, [X], [Y]}; -r2f([X,Y|R]) -> {queue, [X,Y], lists:reverse(R, [])}. diff --git a/src/rabbit.erl b/src/rabbit.erl deleted file mode 100644 index 807e9e7d..00000000 --- a/src/rabbit.erl +++ /dev/null @@ -1,513 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit). - --behaviour(application). - --export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, - rotate_logs/1]). - --export([start/2, stop/1]). - --export([log_location/1]). - -%%--------------------------------------------------------------------------- -%% Boot steps. --export([maybe_insert_default_data/0, boot_delegate/0]). - --rabbit_boot_step({codec_correctness_check, - [{description, "codec correctness check"}, - {mfa, {rabbit_binary_generator, - check_empty_content_body_frame_size, - []}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({database, - [{mfa, {rabbit_mnesia, init, []}}, - {requires, file_handle_cache}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({file_handle_cache, - [{description, "file handle cache server"}, - {mfa, {rabbit_sup, start_restartable_child, - [file_handle_cache]}}, - {enables, worker_pool}]}). - --rabbit_boot_step({worker_pool, - [{description, "worker pool"}, - {mfa, {rabbit_sup, start_child, [worker_pool_sup]}}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({external_infrastructure, - [{description, "external infrastructure ready"}]}). - --rabbit_boot_step({rabbit_registry, - [{description, "plugin registry"}, - {mfa, {rabbit_sup, start_child, - [rabbit_registry]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_log, - [{description, "logging server"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_log]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_event, - [{description, "statistics event manager"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_event]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({kernel_ready, - [{description, "kernel ready"}, - {requires, external_infrastructure}]}). - --rabbit_boot_step({rabbit_alarm, - [{description, "alarm handler"}, - {mfa, {rabbit_alarm, start, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_memory_monitor, - [{description, "memory monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_memory_monitor]}}, - {requires, rabbit_alarm}, - {enables, core_initialized}]}). - --rabbit_boot_step({guid_generator, - [{description, "guid generator"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_guid]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({delegate_sup, - [{description, "cluster delegate"}, - {mfa, {rabbit, boot_delegate, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_node_monitor, - [{description, "node monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_node_monitor]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({core_initialized, - [{description, "core initialized"}, - {requires, kernel_ready}]}). - --rabbit_boot_step({empty_db_check, - [{description, "empty DB check"}, - {mfa, {?MODULE, maybe_insert_default_data, []}}, - {requires, core_initialized}, - {enables, routing_ready}]}). - --rabbit_boot_step({exchange_recovery, - [{description, "exchange recovery"}, - {mfa, {rabbit_exchange, recover, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({queue_sup_queue_recovery, - [{description, "queue supervisor and queue recovery"}, - {mfa, {rabbit_amqqueue, start, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({routing_ready, - [{description, "message delivery logic ready"}, - {requires, core_initialized}]}). - --rabbit_boot_step({log_relay, - [{description, "error log relay"}, - {mfa, {rabbit_error_logger, boot, []}}, - {requires, routing_ready}, - {enables, networking}]}). - --rabbit_boot_step({direct_client, - [{mfa, {rabbit_direct, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({networking, - [{mfa, {rabbit_networking, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({notify_cluster, - [{description, "notify cluster nodes"}, - {mfa, {rabbit_node_monitor, notify_cluster, []}}, - {requires, networking}]}). - -%%--------------------------------------------------------------------------- - --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --define(APPS, [os_mon, mnesia, rabbit]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(file_suffix() :: binary()). -%% this really should be an abstract type --type(log_location() :: 'tty' | 'undefined' | file:filename()). - --spec(prepare/0 :: () -> 'ok'). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_halt/0 :: () -> 'ok'). --spec(rotate_logs/1 :: (file_suffix()) -> rabbit_types:ok_or_error(any())). --spec(status/0 :: - () -> [{running_applications, [{atom(), string(), string()}]} | - {nodes, [{rabbit_mnesia:node_type(), [node()]}]} | - {running_nodes, [node()]}]). --spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). - --spec(maybe_insert_default_data/0 :: () -> 'ok'). --spec(boot_delegate/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -prepare() -> - ok = ensure_working_log_handlers(), - ok = rabbit_upgrade:maybe_upgrade_mnesia(). - -start() -> - try - ok = prepare(), - ok = rabbit_misc:start_applications(?APPS) - after - %%give the error loggers some time to catch up - timer:sleep(100) - end. - -stop() -> - ok = rabbit_misc:stop_applications(?APPS). - -stop_and_halt() -> - try - stop() - after - init:stop() - end, - ok. - -status() -> - [{pid, list_to_integer(os:getpid())}, - {running_applications, application:which_applications()}] ++ - rabbit_mnesia:status(). - -rotate_logs(BinarySuffix) -> - Suffix = binary_to_list(BinarySuffix), - log_rotation_result(rotate_logs(log_location(kernel), - Suffix, - rabbit_error_logger_file_h), - rotate_logs(log_location(sasl), - Suffix, - rabbit_sasl_report_file_h)). - -%%-------------------------------------------------------------------- - -start(normal, []) -> - case erts_version_check() of - ok -> - ok = rabbit_mnesia:delete_previously_running_nodes(), - {ok, SupPid} = rabbit_sup:start_link(), - true = register(rabbit, self()), - - print_banner(), - [ok = run_boot_step(Step) || Step <- boot_steps()], - io:format("~nbroker running~n"), - {ok, SupPid}; - Error -> - Error - end. - -stop(_State) -> - ok = rabbit_mnesia:record_running_nodes(), - terminated_ok = error_logger:delete_report_handler(rabbit_error_logger), - ok = rabbit_alarm:stop(), - ok = case rabbit_mnesia:is_clustered() of - true -> rabbit_amqqueue:on_node_down(node()); - false -> rabbit_mnesia:empty_ram_only_tables() - end, - ok. - -%%--------------------------------------------------------------------------- - -erts_version_check() -> - FoundVer = erlang:system_info(version), - case rabbit_misc:version_compare(?ERTS_MINIMUM, FoundVer, lte) of - true -> ok; - false -> {error, {erlang_version_too_old, - {found, FoundVer}, {required, ?ERTS_MINIMUM}}} - end. - -boot_error(Format, Args) -> - io:format("BOOT ERROR: " ++ Format, Args), - error_logger:error_msg(Format, Args), - timer:sleep(1000), - exit({?MODULE, failure_during_boot}). - -run_boot_step({StepName, Attributes}) -> - Description = case lists:keysearch(description, 1, Attributes) of - {value, {_, D}} -> D; - false -> StepName - end, - case [MFA || {mfa, MFA} <- Attributes] of - [] -> - io:format("-- ~s~n", [Description]); - MFAs -> - io:format("starting ~-60s ...", [Description]), - [try - apply(M,F,A) - catch - _:Reason -> boot_error("FAILED~nReason: ~p~nStacktrace: ~p~n", - [Reason, erlang:get_stacktrace()]) - end || {M,F,A} <- MFAs], - io:format("done~n"), - ok - end. - -boot_steps() -> - sort_boot_steps(rabbit_misc:all_module_attributes(rabbit_boot_step)). - -vertices(_Module, Steps) -> - [{StepName, {StepName, Atts}} || {StepName, Atts} <- Steps]. - -edges(_Module, Steps) -> - [case Key of - requires -> {StepName, OtherStep}; - enables -> {OtherStep, StepName} - end || {StepName, Atts} <- Steps, - {Key, OtherStep} <- Atts, - Key =:= requires orelse Key =:= enables]. - -sort_boot_steps(UnsortedSteps) -> - case rabbit_misc:build_acyclic_graph(fun vertices/2, fun edges/2, - UnsortedSteps) of - {ok, G} -> - %% Use topological sort to find a consistent ordering (if - %% there is one, otherwise fail). - SortedSteps = lists:reverse( - [begin - {StepName, Step} = digraph:vertex(G, StepName), - Step - end || StepName <- digraph_utils:topsort(G)]), - digraph:delete(G), - %% Check that all mentioned {M,F,A} triples are exported. - case [{StepName, {M,F,A}} || - {StepName, Attributes} <- SortedSteps, - {mfa, {M,F,A}} <- Attributes, - not erlang:function_exported(M, F, length(A))] of - [] -> SortedSteps; - MissingFunctions -> boot_error( - "Boot step functions not exported: ~p~n", - [MissingFunctions]) - end; - {error, {vertex, duplicate, StepName}} -> - boot_error("Duplicate boot step name: ~w~n", [StepName]); - {error, {edge, Reason, From, To}} -> - boot_error( - "Could not add boot step dependency of ~w on ~w:~n~s", - [To, From, - case Reason of - {bad_vertex, V} -> - io_lib:format("Boot step not registered: ~w~n", [V]); - {bad_edge, [First | Rest]} -> - [io_lib:format("Cyclic dependency: ~w", [First]), - [io_lib:format(" depends on ~w", [Next]) || - Next <- Rest], - io_lib:format(" depends on ~w~n", [First])] - end]) - end. - -%%--------------------------------------------------------------------------- - -log_location(Type) -> - case application:get_env(Type, case Type of - kernel -> error_logger; - sasl -> sasl_error_logger - end) of - {ok, {file, File}} -> File; - {ok, false} -> undefined; - {ok, tty} -> tty; - {ok, silent} -> undefined; - {ok, Bad} -> throw({error, {cannot_log_to_file, Bad}}); - _ -> undefined - end. - -app_location() -> - {ok, Application} = application:get_application(), - filename:absname(code:where_is_file(atom_to_list(Application) ++ ".app")). - -home_dir() -> - case init:get_argument(home) of - {ok, [[Home]]} -> Home; - Other -> Other - end. - -config_files() -> - case init:get_argument(config) of - {ok, Files} -> [filename:absname( - filename:rootname(File, ".config") ++ ".config") || - File <- Files]; - error -> [] - end. - -%%--------------------------------------------------------------------------- - -print_banner() -> - {ok, Product} = application:get_key(id), - {ok, Version} = application:get_key(vsn), - ProductLen = string:len(Product), - io:format("~n" - "+---+ +---+~n" - "| | | |~n" - "| | | |~n" - "| | | |~n" - "| +---+ +-------+~n" - "| |~n" - "| ~s +---+ |~n" - "| | | |~n" - "| ~s +---+ |~n" - "| |~n" - "+-------------------+~n" - "~s~n~s~n~s~n~n", - [Product, string:right([$v|Version], ProductLen), - ?PROTOCOL_VERSION, - ?COPYRIGHT_MESSAGE, ?INFORMATION_MESSAGE]), - Settings = [{"node", node()}, - {"app descriptor", app_location()}, - {"home dir", home_dir()}, - {"config file(s)", config_files()}, - {"cookie hash", rabbit_misc:cookie_hash()}, - {"log", log_location(kernel)}, - {"sasl log", log_location(sasl)}, - {"database dir", rabbit_mnesia:dir()}, - {"erlang version", erlang:system_info(version)}], - DescrLen = 1 + lists:max([length(K) || {K, _V} <- Settings]), - Format = fun (K, V) -> - io:format("~-" ++ integer_to_list(DescrLen) ++ "s: ~s~n", - [K, V]) - end, - lists:foreach(fun ({"config file(s)" = K, []}) -> - Format(K, "(none)"); - ({"config file(s)" = K, [V0 | Vs]}) -> - Format(K, V0), [Format("", V) || V <- Vs]; - ({K, V}) -> - Format(K, V) - end, Settings), - io:nl(). - -ensure_working_log_handlers() -> - Handlers = gen_event:which_handlers(error_logger), - ok = ensure_working_log_handler(error_logger_file_h, - rabbit_error_logger_file_h, - error_logger_tty_h, - log_location(kernel), - Handlers), - - ok = ensure_working_log_handler(sasl_report_file_h, - rabbit_sasl_report_file_h, - sasl_report_tty_h, - log_location(sasl), - Handlers), - ok. - -ensure_working_log_handler(OldFHandler, NewFHandler, TTYHandler, - LogLocation, Handlers) -> - case LogLocation of - undefined -> ok; - tty -> case lists:member(TTYHandler, Handlers) of - true -> ok; - false -> - throw({error, {cannot_log_to_tty, - TTYHandler, not_installed}}) - end; - _ -> case lists:member(NewFHandler, Handlers) of - true -> ok; - false -> case rotate_logs(LogLocation, "", - OldFHandler, NewFHandler) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_log_to_file, - LogLocation, Reason}}) - end - end - end. - -boot_delegate() -> - {ok, Count} = application:get_env(rabbit, delegate_count), - rabbit_sup:start_child(delegate_sup, [Count]). - -maybe_insert_default_data() -> - case rabbit_mnesia:is_db_empty() of - true -> insert_default_data(); - false -> ok - end. - -insert_default_data() -> - {ok, DefaultUser} = application:get_env(default_user), - {ok, DefaultPass} = application:get_env(default_pass), - {ok, DefaultAdmin} = application:get_env(default_user_is_admin), - {ok, DefaultVHost} = application:get_env(default_vhost), - {ok, [DefaultConfigurePerm, DefaultWritePerm, DefaultReadPerm]} = - application:get_env(default_permissions), - ok = rabbit_vhost:add(DefaultVHost), - ok = rabbit_auth_backend_internal:add_user(DefaultUser, DefaultPass), - case DefaultAdmin of - true -> rabbit_auth_backend_internal:set_admin(DefaultUser); - _ -> ok - end, - ok = rabbit_auth_backend_internal:set_permissions(DefaultUser, DefaultVHost, - DefaultConfigurePerm, - DefaultWritePerm, - DefaultReadPerm), - ok. - -rotate_logs(File, Suffix, Handler) -> - rotate_logs(File, Suffix, Handler, Handler). - -rotate_logs(File, Suffix, OldHandler, NewHandler) -> - case File of - undefined -> ok; - tty -> ok; - _ -> gen_event:swap_handler( - error_logger, - {OldHandler, swap}, - {NewHandler, {File, Suffix}}) - end. - -log_rotation_result({error, MainLogError}, {error, SaslLogError}) -> - {error, {{cannot_rotate_main_logs, MainLogError}, - {cannot_rotate_sasl_logs, SaslLogError}}}; -log_rotation_result({error, MainLogError}, ok) -> - {error, {cannot_rotate_main_logs, MainLogError}}; -log_rotation_result(ok, {error, SaslLogError}) -> - {error, {cannot_rotate_sasl_logs, SaslLogError}}; -log_rotation_result(ok, ok) -> - ok. diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl deleted file mode 100644 index 6313265b..00000000 --- a/src/rabbit_access_control.erl +++ /dev/null @@ -1,141 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_access_control). - --include("rabbit.hrl"). - --export([user_pass_login/2, check_user_pass_login/2, check_user_login/2, - check_vhost_access/2, check_resource_access/3, list_vhosts/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([permission_atom/0, vhost_permission_atom/0]). - --type(permission_atom() :: 'configure' | 'read' | 'write'). --type(vhost_permission_atom() :: 'read' | 'write'). - --spec(user_pass_login/2 :: - (rabbit_types:username(), rabbit_types:password()) - -> rabbit_types:user() | rabbit_types:channel_exit()). --spec(check_user_pass_login/2 :: - (rabbit_types:username(), rabbit_types:password()) - -> {'ok', rabbit_types:user()} | {'refused', string(), [any()]}). --spec(check_vhost_access/2 :: - (rabbit_types:user(), rabbit_types:vhost()) - -> 'ok' | rabbit_types:channel_exit()). --spec(check_resource_access/3 :: - (rabbit_types:user(), rabbit_types:r(atom()), permission_atom()) - -> 'ok' | rabbit_types:channel_exit()). --spec(list_vhosts/2 :: (rabbit_types:user(), vhost_permission_atom()) - -> [rabbit_types:vhost()]). - --endif. - -%%---------------------------------------------------------------------------- - -user_pass_login(User, Pass) -> - ?LOGDEBUG("Login with user ~p pass ~p~n", [User, Pass]), - AuthProps = case Pass of - trust -> []; - P when is_binary(P) -> [{password, P}] - end, - case check_user_login(User, AuthProps) of - {refused, Msg, Args} -> - rabbit_misc:protocol_error( - access_refused, "login refused: ~s", [io_lib:format(Msg, Args)]); - {ok, U} -> - U - end. - -check_user_pass_login(Username, Password) -> - check_user_login(Username, [{password, Password}]). - -check_user_login(Username, AuthProps) -> - {ok, Modules} = application:get_env(rabbit, auth_backends), - lists:foldl( - fun(Module, {refused, _, _}) -> - case Module:check_user_login(Username, AuthProps) of - {error, E} -> - {refused, "~s failed authenticating ~s: ~p~n", - [Module, Username, E]}; - Else -> - Else - end; - (_, {ok, User}) -> - {ok, User} - end, {refused, "No modules checked '~s'", [Username]}, Modules). - -check_vhost_access(User = #user{ username = Username, - auth_backend = Module }, VHostPath) -> - ?LOGDEBUG("Checking VHost access for ~p to ~p~n", [Username, VHostPath]), - check_access( - fun() -> - rabbit_vhost:exists(VHostPath) andalso - Module:check_vhost_access(User, VHostPath, write) - end, - "~s failed checking vhost access to ~s for ~s: ~p~n", - [Module, VHostPath, Username], - "access to vhost '~s' refused for user '~s'", - [VHostPath, Username]). - -check_resource_access(User, R = #resource{kind = exchange, name = <<"">>}, - Permission) -> - check_resource_access(User, R#resource{name = <<"amq.default">>}, - Permission); -check_resource_access(User = #user{username = Username, auth_backend = Module}, - Resource, Permission) -> - check_access( - fun() -> Module:check_resource_access(User, Resource, Permission) end, - "~s failed checking resource access to ~p for ~s: ~p~n", - [Module, Resource, Username], - "access to ~s refused for user '~s'", - [rabbit_misc:rs(Resource), Username]). - -check_access(Fun, ErrStr, ErrArgs, RefStr, RefArgs) -> - Allow = case Fun() of - {error, _} = E -> - rabbit_log:error(ErrStr, ErrArgs ++ [E]), - false; - Else -> - Else - end, - case Allow of - true -> - ok; - false -> - rabbit_misc:protocol_error(access_refused, RefStr, RefArgs) - end. - -%% Permission = write -> log in -%% Permission = read -> learn of the existence of (only relevant for -%% management plugin) -list_vhosts(User = #user{username = Username, auth_backend = Module}, - Permission) -> - lists:filter( - fun(VHost) -> - case Module:check_vhost_access(User, VHost, Permission) of - {error, _} = E -> - rabbit_log:warning("~w failed checking vhost access " - "to ~s for ~s: ~p~n", - [Module, VHost, Username, E]), - false; - Else -> - Else - end - end, rabbit_vhost:list()). diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl deleted file mode 100644 index d38ecb91..00000000 --- a/src/rabbit_alarm.erl +++ /dev/null @@ -1,166 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_alarm). - --behaviour(gen_event). - --export([start/0, stop/0, register/2, on_node_up/1, on_node_down/1]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - --export([remote_conserve_memory/2]). %% Internal use only - --record(alarms, {alertees, alarmed_nodes}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(mfa_tuple() :: {atom(), atom(), list()}). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(register/2 :: (pid(), mfa_tuple()) -> boolean()). --spec(on_node_up/1 :: (node()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - ok = alarm_handler:add_alarm_handler(?MODULE, []), - {ok, MemoryWatermark} = application:get_env(vm_memory_high_watermark), - ok = case MemoryWatermark == 0 of - true -> ok; - false -> rabbit_sup:start_restartable_child(vm_memory_monitor, - [MemoryWatermark]) - end, - ok. - -stop() -> - ok = alarm_handler:delete_alarm_handler(?MODULE). - -register(Pid, HighMemMFA) -> - gen_event:call(alarm_handler, ?MODULE, - {register, Pid, HighMemMFA}, - infinity). - -on_node_up(Node) -> gen_event:notify(alarm_handler, {node_up, Node}). - -on_node_down(Node) -> gen_event:notify(alarm_handler, {node_down, Node}). - -%% Can't use alarm_handler:{set,clear}_alarm because that doesn't -%% permit notifying a remote node. -remote_conserve_memory(Pid, true) -> - gen_event:notify({alarm_handler, node(Pid)}, - {set_alarm, {{vm_memory_high_watermark, node()}, []}}); -remote_conserve_memory(Pid, false) -> - gen_event:notify({alarm_handler, node(Pid)}, - {clear_alarm, {vm_memory_high_watermark, node()}}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #alarms{alertees = dict:new(), - alarmed_nodes = sets:new()}}. - -handle_call({register, Pid, HighMemMFA}, State) -> - {ok, 0 < sets:size(State#alarms.alarmed_nodes), - internal_register(Pid, HighMemMFA, State)}; - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({set_alarm, {{vm_memory_high_watermark, Node}, []}}, State) -> - {ok, maybe_alert(fun sets:add_element/2, Node, State)}; - -handle_event({clear_alarm, {vm_memory_high_watermark, Node}}, State) -> - {ok, maybe_alert(fun sets:del_element/2, Node, State)}; - -handle_event({node_up, Node}, State) -> - %% Must do this via notify and not call to avoid possible deadlock. - ok = gen_event:notify( - {alarm_handler, Node}, - {register, self(), {?MODULE, remote_conserve_memory, []}}), - {ok, State}; - -handle_event({node_down, Node}, State) -> - {ok, maybe_alert(fun sets:del_element/2, Node, State)}; - -handle_event({register, Pid, HighMemMFA}, State) -> - {ok, internal_register(Pid, HighMemMFA, State)}; - -handle_event(_Event, State) -> - {ok, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #alarms{alertees = Alertees}) -> - {ok, State#alarms{alertees = dict:erase(Pid, Alertees)}}; - -handle_info(_Info, State) -> - {ok, State}. - -terminate(_Arg, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -maybe_alert(SetFun, Node, State = #alarms{alarmed_nodes = AN, - alertees = Alertees}) -> - AN1 = SetFun(Node, AN), - BeforeSz = sets:size(AN), - AfterSz = sets:size(AN1), - %% If we have changed our alarm state, inform the remotes. - IsLocal = Node =:= node(), - if IsLocal andalso BeforeSz < AfterSz -> ok = alert_remote(true, Alertees); - IsLocal andalso BeforeSz > AfterSz -> ok = alert_remote(false, Alertees); - true -> ok - end, - %% If the overall alarm state has changed, inform the locals. - case {BeforeSz, AfterSz} of - {0, 1} -> ok = alert_local(true, Alertees); - {1, 0} -> ok = alert_local(false, Alertees); - {_, _} -> ok - end, - State#alarms{alarmed_nodes = AN1}. - -alert_local(Alert, Alertees) -> alert(Alert, Alertees, fun erlang:'=:='/2). - -alert_remote(Alert, Alertees) -> alert(Alert, Alertees, fun erlang:'=/='/2). - -alert(Alert, Alertees, NodeComparator) -> - Node = node(), - dict:fold(fun (Pid, {M, F, A}, ok) -> - case NodeComparator(Node, node(Pid)) of - true -> apply(M, F, A ++ [Pid, Alert]); - false -> ok - end - end, ok, Alertees). - -internal_register(Pid, {M, F, A} = HighMemMFA, - State = #alarms{alertees = Alertees}) -> - _MRef = erlang:monitor(process, Pid), - case sets:is_element(node(), State#alarms.alarmed_nodes) of - true -> ok = apply(M, F, A ++ [Pid, true]); - false -> ok - end, - NewAlertees = dict:store(Pid, HighMemMFA, Alertees), - State#alarms{alertees = NewAlertees}. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl deleted file mode 100644 index c7391965..00000000 --- a/src/rabbit_amqqueue.erl +++ /dev/null @@ -1,506 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue). - --export([start/0, stop/0, declare/5, delete_immediately/1, delete/3, purge/1]). --export([pseudo_queue/2]). --export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, - check_exclusive_access/2, with_exclusive_access_or_die/3, - stat/1, deliver/2, requeue/3, ack/4, reject/4]). --export([list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). --export([consumers/1, consumers_all/1]). --export([basic_get/3, basic_consume/7, basic_cancel/4]). --export([notify_sent/2, unblock/2, flush_all/2]). --export([commit_all/3, rollback_all/3, notify_down_all/2, limit_all/3]). --export([on_node_down/1]). - -%% internal --export([internal_declare/2, internal_delete/1, - run_backing_queue/2, run_backing_queue_async/2, - sync_timeout/1, update_ram_duration/1, set_ram_duration_target/2, - set_maximum_since_use/2, maybe_expire/1, drop_expired/1, - emit_stats/1]). - --include("rabbit.hrl"). --include_lib("stdlib/include/qlc.hrl"). - --define(INTEGER_ARG_TYPES, [byte, short, signedint, long]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, qmsg/0]). - --type(name() :: rabbit_types:r('queue')). - --type(qlen() :: rabbit_types:ok(non_neg_integer())). --type(qfun(A) :: fun ((rabbit_types:amqqueue()) -> A)). --type(qmsg() :: {name(), pid(), msg_id(), boolean(), rabbit_types:message()}). --type(msg_id() :: non_neg_integer()). --type(ok_or_errors() :: - 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). - --type(queue_or_not_found() :: rabbit_types:amqqueue() | 'not_found'). - --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(declare/5 :: - (name(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> {'new' | 'existing', rabbit_types:amqqueue()} | - rabbit_types:channel_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:amqqueue()) | - rabbit_types:error('not_found')). --spec(with/2 :: (name(), qfun(A)) -> A | rabbit_types:error('not_found')). --spec(with_or_die/2 :: - (name(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(assert_equivalence/5 :: - (rabbit_types:amqqueue(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> 'ok' | rabbit_types:channel_exit() | - rabbit_types:connection_exit()). --spec(check_exclusive_access/2 :: - (rabbit_types:amqqueue(), pid()) - -> 'ok' | rabbit_types:channel_exit()). --spec(with_exclusive_access_or_die/3 :: - (name(), pid(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:amqqueue()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:amqqueue()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:amqqueue(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 :: (rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(consumers/1 :: - (rabbit_types:amqqueue()) - -> [{pid(), rabbit_types:ctag(), boolean()}]). --spec(consumers_all/1 :: - (rabbit_types:vhost()) - -> [{name(), pid(), rabbit_types:ctag(), boolean()}]). --spec(stat/1 :: - (rabbit_types:amqqueue()) - -> {'ok', non_neg_integer(), non_neg_integer()}). --spec(emit_stats/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete_immediately/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete/3 :: - (rabbit_types:amqqueue(), 'false', 'false') - -> qlen(); - (rabbit_types:amqqueue(), 'true' , 'false') - -> qlen() | rabbit_types:error('in_use'); - (rabbit_types:amqqueue(), 'false', 'true' ) - -> qlen() | rabbit_types:error('not_empty'); - (rabbit_types:amqqueue(), 'true' , 'true' ) - -> qlen() | - rabbit_types:error('in_use') | - rabbit_types:error('not_empty')). --spec(purge/1 :: (rabbit_types:amqqueue()) -> qlen()). --spec(deliver/2 :: (pid(), rabbit_types:delivery()) -> boolean()). --spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). --spec(ack/4 :: - (pid(), rabbit_types:maybe(rabbit_types:txn()), [msg_id()], pid()) - -> 'ok'). --spec(reject/4 :: (pid(), [msg_id()], boolean(), pid()) -> 'ok'). --spec(commit_all/3 :: ([pid()], rabbit_types:txn(), pid()) -> ok_or_errors()). --spec(rollback_all/3 :: ([pid()], rabbit_types:txn(), pid()) -> 'ok'). --spec(notify_down_all/2 :: ([pid()], pid()) -> ok_or_errors()). --spec(limit_all/3 :: ([pid()], pid(), pid() | 'undefined') -> ok_or_errors()). --spec(basic_get/3 :: (rabbit_types:amqqueue(), pid(), boolean()) -> - {'ok', non_neg_integer(), qmsg()} | 'empty'). --spec(basic_consume/7 :: - (rabbit_types:amqqueue(), boolean(), pid(), pid() | 'undefined', - rabbit_types:ctag(), boolean(), any()) - -> rabbit_types:ok_or_error('exclusive_consume_unavailable')). --spec(basic_cancel/4 :: - (rabbit_types:amqqueue(), pid(), rabbit_types:ctag(), any()) -> 'ok'). --spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(flush_all/2 :: ([pid()], pid()) -> 'ok'). --spec(internal_declare/2 :: - (rabbit_types:amqqueue(), boolean()) - -> queue_or_not_found() | rabbit_misc:thunk(queue_or_not_found())). --spec(internal_delete/1 :: - (name()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit() | - fun ((boolean()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit())). --spec(run_backing_queue/2 :: - (pid(), (fun ((A) -> {[rabbit_types:msg_id()], A}))) -> 'ok'). --spec(run_backing_queue_async/2 :: - (pid(), (fun ((A) -> {[rabbit_types:msg_id()], A}))) -> 'ok'). --spec(sync_timeout/1 :: (pid()) -> 'ok'). --spec(update_ram_duration/1 :: (pid()) -> 'ok'). --spec(set_ram_duration_target/2 :: (pid(), number() | 'infinity') -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). --spec(maybe_expire/1 :: (pid()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(pseudo_queue/2 :: (name(), pid()) -> rabbit_types:amqqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - DurableQueues = find_durable_queues(), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:start([QName || #amqqueue{name = QName} <- DurableQueues]), - {ok,_} = supervisor:start_child( - rabbit_sup, - {rabbit_amqqueue_sup, - {rabbit_amqqueue_sup, start_link, []}, - transient, infinity, supervisor, [rabbit_amqqueue_sup]}), - _RealDurableQueues = recover_durable_queues(DurableQueues), - ok. - -stop() -> - ok = supervisor:terminate_child(rabbit_sup, rabbit_amqqueue_sup), - ok = supervisor:delete_child(rabbit_sup, rabbit_amqqueue_sup), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:stop(). - -find_durable_queues() -> - Node = node(), - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end). - -recover_durable_queues(DurableQueues) -> - Qs = [start_queue_process(Q) || Q <- DurableQueues], - [Q || Q <- Qs, - gen_server2:call(Q#amqqueue.pid, {init, true}, infinity) == Q]. - -declare(QueueName, Durable, AutoDelete, Args, Owner) -> - ok = check_declare_arguments(QueueName, Args), - Q = start_queue_process(#amqqueue{name = QueueName, - durable = Durable, - auto_delete = AutoDelete, - arguments = Args, - exclusive_owner = Owner, - pid = none}), - case gen_server2:call(Q#amqqueue.pid, {init, false}, infinity) of - not_found -> rabbit_misc:not_found(QueueName); - Q1 -> Q1 - end. - -internal_declare(Q, true) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> ok = store_queue(Q), rabbit_misc:const(Q) end); -internal_declare(Q = #amqqueue{name = QueueName}, false) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> - case mnesia:read({rabbit_durable_queue, QueueName}) of - [] -> ok = store_queue(Q), - B = add_default_binding(Q), - fun (Tx) -> B(Tx), Q end; - %% Q exists on stopped node - [_] -> rabbit_misc:const(not_found) - end; - [ExistingQ = #amqqueue{pid = QPid}] -> - case rabbit_misc:is_process_alive(QPid) of - true -> rabbit_misc:const(ExistingQ); - false -> TailFun = internal_delete(QueueName), - fun (Tx) -> TailFun(Tx), ExistingQ end - end - end - end). - -store_queue(Q = #amqqueue{durable = true}) -> - ok = mnesia:write(rabbit_durable_queue, Q, write), - ok = mnesia:write(rabbit_queue, Q, write), - ok; -store_queue(Q = #amqqueue{durable = false}) -> - ok = mnesia:write(rabbit_queue, Q, write), - ok. - -start_queue_process(Q) -> - {ok, Pid} = rabbit_amqqueue_sup:start_child([Q]), - Q#amqqueue{pid = Pid}. - -add_default_binding(#amqqueue{name = QueueName}) -> - ExchangeName = rabbit_misc:r(QueueName, exchange, <<>>), - RoutingKey = QueueName#resource.name, - rabbit_binding:add(#binding{source = ExchangeName, - destination = QueueName, - key = RoutingKey, - args = []}). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_queue, Name}). - -with(Name, F, E) -> - case lookup(Name) of - {ok, Q} -> rabbit_misc:with_exit_handler(E, fun () -> F(Q) end); - {error, not_found} -> E() - end. - -with(Name, F) -> - with(Name, F, fun () -> {error, not_found} end). -with_or_die(Name, F) -> - with(Name, F, fun () -> rabbit_misc:not_found(Name) end). - -assert_equivalence(#amqqueue{durable = Durable, - auto_delete = AutoDelete} = Q, - Durable, AutoDelete, RequiredArgs, Owner) -> - assert_args_equivalence(Q, RequiredArgs), - check_exclusive_access(Q, Owner, strict); -assert_equivalence(#amqqueue{name = QueueName}, - _Durable, _AutoDelete, _RequiredArgs, _Owner) -> - rabbit_misc:protocol_error( - precondition_failed, "parameters for ~s not equivalent", - [rabbit_misc:rs(QueueName)]). - -check_exclusive_access(Q, Owner) -> check_exclusive_access(Q, Owner, lax). - -check_exclusive_access(#amqqueue{exclusive_owner = Owner}, Owner, _MatchType) -> - ok; -check_exclusive_access(#amqqueue{exclusive_owner = none}, _ReaderPid, lax) -> - ok; -check_exclusive_access(#amqqueue{name = QueueName}, _ReaderPid, _MatchType) -> - rabbit_misc:protocol_error( - resource_locked, - "cannot obtain exclusive access to locked ~s", - [rabbit_misc:rs(QueueName)]). - -with_exclusive_access_or_die(Name, ReaderPid, F) -> - with_or_die(Name, - fun (Q) -> check_exclusive_access(Q, ReaderPid), F(Q) end). - -assert_args_equivalence(#amqqueue{name = QueueName, arguments = Args}, - RequiredArgs) -> - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, QueueName, - [<<"x-expires">>]). - -check_declare_arguments(QueueName, Args) -> - [case Fun(rabbit_misc:table_lookup(Args, Key)) of - ok -> ok; - {error, Error} -> rabbit_misc:protocol_error( - precondition_failed, - "invalid arg '~s' for ~s: ~w", - [Key, rabbit_misc:rs(QueueName), Error]) - end || {Key, Fun} <- - [{<<"x-expires">>, fun check_integer_argument/1}, - {<<"x-message-ttl">>, fun check_integer_argument/1}]], - ok. - -check_integer_argument(undefined) -> - ok; -check_integer_argument({Type, Val}) when Val > 0 -> - case lists:member(Type, ?INTEGER_ARG_TYPES) of - true -> ok; - false -> {error, {unacceptable_type, Type}} - end; -check_integer_argument({_Type, Val}) -> - {error, {value_zero_or_less, Val}}. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_queue, - #amqqueue{name = rabbit_misc:r(VHostPath, queue), _ = '_'}). - -info_keys() -> rabbit_amqqueue_process:info_keys(). - -map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). - -info(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, info). - -info(#amqqueue{ pid = QPid }, Items) -> - case delegate_call(QPid, {info, Items}) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). - -consumers(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, consumers). - -consumers_all(VHostPath) -> - lists:append( - map(VHostPath, - fun (Q) -> [{Q#amqqueue.name, ChPid, ConsumerTag, AckRequired} || - {ChPid, ConsumerTag, AckRequired} <- consumers(Q)] - end)). - -stat(#amqqueue{pid = QPid}) -> - delegate_call(QPid, stat). - -emit_stats(#amqqueue{pid = QPid}) -> - delegate_cast(QPid, emit_stats). - -delete_immediately(#amqqueue{ pid = QPid }) -> - gen_server2:cast(QPid, delete_immediately). - -delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}). - -purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge). - -deliver(QPid, Delivery = #delivery{immediate = true}) -> - gen_server2:call(QPid, {deliver_immediately, Delivery}, infinity); -deliver(QPid, Delivery = #delivery{mandatory = true}) -> - gen_server2:call(QPid, {deliver, Delivery}, infinity), - true; -deliver(QPid, Delivery) -> - gen_server2:cast(QPid, {deliver, Delivery}), - true. - -requeue(QPid, MsgIds, ChPid) -> - delegate_call(QPid, {requeue, MsgIds, ChPid}). - -ack(QPid, Txn, MsgIds, ChPid) -> - delegate_cast(QPid, {ack, Txn, MsgIds, ChPid}). - -reject(QPid, MsgIds, Requeue, ChPid) -> - delegate_cast(QPid, {reject, MsgIds, Requeue, ChPid}). - -commit_all(QPids, Txn, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {commit, Txn, ChPid}, infinity) end, - QPids). - -rollback_all(QPids, Txn, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {rollback, Txn, ChPid}) end). - -notify_down_all(QPids, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, infinity) end, - QPids). - -limit_all(QPids, ChPid, LimiterPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> - gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) - end). - -basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> - delegate_call(QPid, {basic_get, ChPid, NoAck}). - -basic_consume(#amqqueue{pid = QPid}, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg) -> - delegate_call(QPid, {basic_consume, NoAck, ChPid, - LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg}). - -basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> - ok = delegate_call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}). - -notify_sent(QPid, ChPid) -> - gen_server2:cast(QPid, {notify_sent, ChPid}). - -unblock(QPid, ChPid) -> - delegate_cast(QPid, {unblock, ChPid}). - -flush_all(QPids, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). - -internal_delete1(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - ok = mnesia:delete({rabbit_durable_queue, QueueName}), - %% we want to execute some things, as decided by rabbit_exchange, - %% after the transaction. - rabbit_binding:remove_for_destination(QueueName). - -internal_delete(QueueName) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> rabbit_misc:const({error, not_found}); - [_] -> Deletions = internal_delete1(QueueName), - fun (Tx) -> ok = rabbit_binding:process_deletions( - Deletions, Tx) - end - end - end). - -run_backing_queue(QPid, Fun) -> - gen_server2:call(QPid, {run_backing_queue, Fun}, infinity). - -run_backing_queue_async(QPid, Fun) -> - gen_server2:cast(QPid, {run_backing_queue, Fun}). - -sync_timeout(QPid) -> - gen_server2:cast(QPid, sync_timeout). - -update_ram_duration(QPid) -> - gen_server2:cast(QPid, update_ram_duration). - -set_ram_duration_target(QPid, Duration) -> - gen_server2:cast(QPid, {set_ram_duration_target, Duration}). - -set_maximum_since_use(QPid, Age) -> - gen_server2:cast(QPid, {set_maximum_since_use, Age}). - -maybe_expire(QPid) -> - gen_server2:cast(QPid, maybe_expire). - -drop_expired(QPid) -> - gen_server2:cast(QPid, drop_expired). - -on_node_down(Node) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> qlc:e(qlc:q([delete_queue(QueueName) || - #amqqueue{name = QueueName, pid = Pid} - <- mnesia:table(rabbit_queue), - node(Pid) == Node])) - end, - fun (Deletions, Tx) -> - rabbit_binding:process_deletions( - lists:foldl(fun rabbit_binding:combine_deletions/2, - rabbit_binding:new_deletions(), - Deletions), - Tx) - end). - -delete_queue(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - rabbit_binding:remove_transient_for_destination(QueueName). - -pseudo_queue(QueueName, Pid) -> - #amqqueue{name = QueueName, - durable = false, - auto_delete = false, - arguments = [], - pid = Pid}. - -safe_delegate_call_ok(F, Pids) -> - case delegate:invoke(Pids, fun (Pid) -> - rabbit_misc:with_exit_handler( - fun () -> ok end, - fun () -> F(Pid) end) - end) of - {_, []} -> ok; - {_, Bad} -> {error, Bad} - end. - -delegate_call(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> gen_server2:call(P, Msg, infinity) end). - -delegate_cast(Pid, Msg) -> - delegate:invoke_no_result(Pid, fun (P) -> gen_server2:cast(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl deleted file mode 100644 index 2b0fe17e..00000000 --- a/src/rabbit_amqqueue_process.erl +++ /dev/null @@ -1,1174 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_process). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(gen_server2). - --define(UNSENT_MESSAGE_LIMIT, 100). --define(SYNC_INTERVAL, 25). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). - --define(BASE_MESSAGE_PROPERTIES, - #message_properties{expiry = undefined, needs_confirming = false}). - --export([start_link/1, info_keys/0]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2]). - -%% Queue's state --record(q, {q, - exclusive_consumer, - has_had_consumers, - backing_queue, - backing_queue_state, - active_consumers, - blocked_consumers, - expires, - sync_timer_ref, - rate_timer_ref, - expiry_timer_ref, - stats_timer, - msg_id_to_channel, - ttl, - ttl_timer_ref - }). - --record(consumer, {tag, ack_required}). - -%% These are held in our process dictionary --record(cr, {consumer_count, - ch_pid, - limiter_pid, - monitor_ref, - acktags, - is_limit_active, - txn, - unsent_message_count}). - --define(STATISTICS_KEYS, - [pid, - exclusive_consumer_pid, - exclusive_consumer_tag, - messages_ready, - messages_unacknowledged, - messages, - consumers, - memory, - backing_queue_status - ]). - --define(CREATION_EVENT_KEYS, - [pid, - name, - durable, - auto_delete, - arguments, - owner_pid - ]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - -start_link(Q) -> gen_server2:start_link(?MODULE, Q, []). - -info_keys() -> ?INFO_KEYS. - -%%---------------------------------------------------------------------------- - -init(Q) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - process_flag(trap_exit, true), - {ok, BQ} = application:get_env(backing_queue_module), - - {ok, #q{q = Q#amqqueue{pid = self()}, - exclusive_consumer = none, - has_had_consumers = false, - backing_queue = BQ, - backing_queue_state = undefined, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - expires = undefined, - sync_timer_ref = undefined, - rate_timer_ref = undefined, - expiry_timer_ref = undefined, - ttl = undefined, - stats_timer = rabbit_event:init_stats_timer(), - msg_id_to_channel = dict:new()}, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -terminate(shutdown, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate({shutdown, _}, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(BQS) end, State); -terminate(_Reason, State = #q{backing_queue = BQ}) -> - %% FIXME: How do we cancel active subscriptions? - terminate_shutdown(fun (BQS) -> - rabbit_event:notify( - queue_deleted, [{pid, self()}]), - BQS1 = BQ:delete_and_terminate(BQS), - %% don't care if the internal delete - %% doesn't return 'ok'. - rabbit_amqqueue:internal_delete(qname(State)), - BQS1 - end, State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -declare(Recover, From, - State = #q{q = Q = #amqqueue{name = QName, durable = IsDurable}, - backing_queue = BQ, backing_queue_state = undefined, - stats_timer = StatsTimer}) -> - case rabbit_amqqueue:internal_declare(Q, Recover) of - not_found -> {stop, normal, not_found, State}; - Q -> gen_server2:reply(From, {new, Q}), - ok = file_handle_cache:register_callback( - rabbit_amqqueue, set_maximum_since_use, - [self()]), - ok = rabbit_memory_monitor:register( - self(), {rabbit_amqqueue, - set_ram_duration_target, [self()]}), - BQS = bq_init(BQ, QName, IsDurable, Recover), - State1 = process_args(State#q{backing_queue_state = BQS}), - rabbit_event:notify(queue_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> emit_stats(State1) end), - noreply(State1); - Q1 -> {stop, normal, {existing, Q1}, State} - end. - -bq_init(BQ, QName, IsDurable, Recover) -> - Self = self(), - BQ:init(QName, IsDurable, Recover, - fun (Fun) -> - rabbit_amqqueue:run_backing_queue_async(Self, Fun) - end, - fun (Fun) -> - rabbit_misc:with_exit_handler( - fun () -> error end, - fun () -> - rabbit_amqqueue:run_backing_queue(Self, Fun) - end) - end). - -process_args(State = #q{q = #amqqueue{arguments = Arguments}}) -> - lists:foldl(fun({Arg, Fun}, State1) -> - case rabbit_misc:table_lookup(Arguments, Arg) of - {_Type, Val} -> Fun(Val, State1); - undefined -> State1 - end - end, State, [{<<"x-expires">>, fun init_expires/2}, - {<<"x-message-ttl">>, fun init_ttl/2}]). - -init_expires(Expires, State) -> ensure_expiry_timer(State#q{expires = Expires}). - -init_ttl(TTL, State) -> drop_expired_messages(State#q{ttl = TTL}). - -terminate_shutdown(Fun, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - stop_sync_timer(stop_rate_timer(State)), - case BQS of - undefined -> State; - _ -> ok = rabbit_memory_monitor:deregister(self()), - BQS1 = lists:foldl( - fun (#cr{txn = none}, BQSN) -> - BQSN; - (#cr{txn = Txn}, BQSN) -> - {_AckTags, BQSN1} = - BQ:tx_rollback(Txn, BQSN), - BQSN1 - end, BQS, all_ch_record()), - [emit_consumer_deleted(Ch, CTag) - || {Ch, CTag, _} <- consumers(State1)], - State1#q{backing_queue_state = Fun(BQS1)} - end. - -reply(Reply, NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {reply, Reply, NewState1, Timeout}. - -noreply(NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {noreply, NewState1, Timeout}. - -next_state(State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - {MsgIds, BQS1} = BQ:drain_confirmed(BQS), - State1 = ensure_stats_timer( - ensure_rate_timer( - confirm_messages(MsgIds, State#q{ - backing_queue_state = BQS1}))), - case BQ:needs_idle_timeout(BQS1) of - true -> {ensure_sync_timer(State1), 0}; - false -> {stop_sync_timer(State1), hibernate} - end. - -ensure_sync_timer(State = #q{sync_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?SYNC_INTERVAL, rabbit_amqqueue, sync_timeout, [self()]), - State#q{sync_timer_ref = TRef}; -ensure_sync_timer(State) -> - State. - -stop_sync_timer(State = #q{sync_timer_ref = undefined}) -> - State; -stop_sync_timer(State = #q{sync_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{sync_timer_ref = undefined}. - -ensure_rate_timer(State = #q{rate_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), - State#q{rate_timer_ref = TRef}; -ensure_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -ensure_rate_timer(State) -> - State. - -stop_rate_timer(State = #q{rate_timer_ref = undefined}) -> - State; -stop_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{rate_timer_ref = undefined}. - -stop_expiry_timer(State = #q{expiry_timer_ref = undefined}) -> - State; -stop_expiry_timer(State = #q{expiry_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{expiry_timer_ref = undefined}. - -%% We wish to expire only when there are no consumers *and* the expiry -%% hasn't been refreshed (by queue.declare or basic.get) for the -%% configured period. -ensure_expiry_timer(State = #q{expires = undefined}) -> - State; -ensure_expiry_timer(State = #q{expires = Expires}) -> - case is_unused(State) of - true -> - NewState = stop_expiry_timer(State), - {ok, TRef} = timer:apply_after( - Expires, rabbit_amqqueue, maybe_expire, [self()]), - NewState#q{expiry_timer_ref = TRef}; - false -> - State - end. - -ensure_stats_timer(State = #q{stats_timer = StatsTimer, - q = Q}) -> - State#q{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> rabbit_amqqueue:emit_stats(Q) end)}. - -assert_invariant(#q{active_consumers = AC, - backing_queue = BQ, backing_queue_state = BQS}) -> - true = (queue:is_empty(AC) orelse BQ:is_empty(BQS)). - -lookup_ch(ChPid) -> - case get({ch, ChPid}) of - undefined -> not_found; - C -> C - end. - -ch_record(ChPid) -> - Key = {ch, ChPid}, - case get(Key) of - undefined -> MonitorRef = erlang:monitor(process, ChPid), - C = #cr{consumer_count = 0, - ch_pid = ChPid, - monitor_ref = MonitorRef, - acktags = sets:new(), - is_limit_active = false, - txn = none, - unsent_message_count = 0}, - put(Key, C), - C; - C = #cr{} -> C - end. - -store_ch_record(C = #cr{ch_pid = ChPid}) -> - put({ch, ChPid}, C). - -maybe_store_ch_record(C = #cr{consumer_count = ConsumerCount, - acktags = ChAckTags, - txn = Txn, - unsent_message_count = UnsentMessageCount}) -> - case {sets:size(ChAckTags), ConsumerCount, UnsentMessageCount, Txn} of - {0, 0, 0, none} -> ok = erase_ch_record(C), - false; - _ -> store_ch_record(C), - true - end. - -erase_ch_record(#cr{ch_pid = ChPid, - limiter_pid = LimiterPid, - monitor_ref = MonitorRef}) -> - ok = rabbit_limiter:unregister(LimiterPid, self()), - erlang:demonitor(MonitorRef), - erase({ch, ChPid}), - ok. - -all_ch_record() -> [C || {{ch, _}, C} <- get()]. - -is_ch_blocked(#cr{unsent_message_count = Count, is_limit_active = Limited}) -> - Limited orelse Count >= ?UNSENT_MESSAGE_LIMIT. - -ch_record_state_transition(OldCR, NewCR) -> - case {is_ch_blocked(OldCR), is_ch_blocked(NewCR)} of - {true, false} -> unblock; - {false, true} -> block; - {_, _} -> ok - end. - -deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - case queue:out(ActiveConsumers) of - {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}}, - ActiveConsumersTail} -> - C = #cr{limiter_pid = LimiterPid, - unsent_message_count = Count, - acktags = ChAckTags} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of - true -> - {{Message, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), AckTag, IsDelivered, Message}), - ChAckTags1 = - case AckRequired of - true -> sets:add_element(AckTag, ChAckTags); - false -> ChAckTags - end, - NewC = C#cr{unsent_message_count = Count + 1, - acktags = ChAckTags1}, - true = maybe_store_ch_record(NewC), - {NewActiveConsumers, NewBlockedConsumers} = - case ch_record_state_transition(C, NewC) of - ok -> {queue:in(QEntry, ActiveConsumersTail), - BlockedConsumers}; - block -> {ActiveConsumers1, BlockedConsumers1} = - move_consumers(ChPid, - ActiveConsumersTail, - BlockedConsumers), - {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} - end, - State2 = State1#q{ - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}, - deliver_msgs_to_consumers(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> - true = maybe_store_ch_record(C#cr{is_limit_active = true}), - {NewActiveConsumers, NewBlockedConsumers} = - move_consumers(ChPid, - ActiveConsumers, - BlockedConsumers), - deliver_msgs_to_consumers( - Funs, FunAcc, - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} - end; - {empty, _} -> - {FunAcc, State} - end. - -deliver_from_queue_pred(IsEmpty, _State) -> not IsEmpty. - -deliver_from_queue_deliver(AckRequired, false, State) -> - {{Message, IsDelivered, AckTag, Remaining}, State1} = - fetch(AckRequired, State), - {{Message, IsDelivered, AckTag}, 0 == Remaining, State1}. - -confirm_messages([], State) -> - State; -confirm_messages(MsgIds, State = #q{msg_id_to_channel = MTC}) -> - {CMs, MTC1} = lists:foldl( - fun(MsgId, {CMs, MTC0}) -> - case dict:find(MsgId, MTC0) of - {ok, {ChPid, MsgSeqNo}} -> - {gb_trees_cons(ChPid, MsgSeqNo, CMs), - dict:erase(MsgId, MTC0)}; - _ -> - {CMs, MTC0} - end - end, {gb_trees:empty(), MTC}, MsgIds), - gb_trees_foreach(fun(ChPid, MsgSeqNos) -> - rabbit_channel:confirm(ChPid, MsgSeqNos) - end, CMs), - State#q{msg_id_to_channel = MTC1}. - -gb_trees_foreach(_, none) -> - ok; -gb_trees_foreach(Fun, {Key, Val, It}) -> - Fun(Key, Val), - gb_trees_foreach(Fun, gb_trees:next(It)); -gb_trees_foreach(Fun, Tree) -> - gb_trees_foreach(Fun, gb_trees:next(gb_trees:iterator(Tree))). - -gb_trees_cons(Key, Value, Tree) -> - case gb_trees:lookup(Key, Tree) of - {value, Values} -> gb_trees:update(Key, [Value | Values], Tree); - none -> gb_trees:insert(Key, [Value], Tree) - end. - -should_confirm_message(#delivery{msg_seq_no = undefined}, _State) -> - never; -should_confirm_message(#delivery{sender = ChPid, - msg_seq_no = MsgSeqNo, - message = #basic_message { - is_persistent = true, - id = MsgId}}, - #q{q = #amqqueue{durable = true}}) -> - {eventually, ChPid, MsgSeqNo, MsgId}; -should_confirm_message(_Delivery, _State) -> - immediately. - -needs_confirming({eventually, _, _, _}) -> true; -needs_confirming(_) -> false. - -maybe_record_confirm_message({eventually, ChPid, MsgSeqNo, MsgId}, - State = #q{msg_id_to_channel = MTC}) -> - State#q{msg_id_to_channel = dict:store(MsgId, {ChPid, MsgSeqNo}, MTC)}; -maybe_record_confirm_message(_Confirm, State) -> - State. - -run_message_queue(State) -> - Funs = {fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3}, - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - drop_expired_messages(State), - IsEmpty = BQ:is_empty(BQS), - {_IsEmpty1, State2} = deliver_msgs_to_consumers(Funs, IsEmpty, State1), - State2. - -attempt_delivery(#delivery{txn = none, - sender = ChPid, - message = Message, - msg_seq_no = MsgSeqNo} = Delivery, - State = #q{backing_queue = BQ}) -> - Confirm = should_confirm_message(Delivery, State), - case Confirm of - immediately -> rabbit_channel:confirm(ChPid, [MsgSeqNo]); - _ -> ok - end, - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, State1 = #q{backing_queue_state = BQS}) -> - %% we don't need an expiry here because messages are - %% not being enqueued, so we use an empty - %% message_properties. - {AckTag, BQS1} = - BQ:publish_delivered( - AckRequired, Message, - (?BASE_MESSAGE_PROPERTIES)#message_properties{ - needs_confirming = needs_confirming(Confirm)}, - BQS), - {{Message, false, AckTag}, true, - State1#q{backing_queue_state = BQS1}} - end, - {Delivered, State1} = - deliver_msgs_to_consumers({ PredFun, DeliverFun }, false, State), - {Delivered, Confirm, State1}; -attempt_delivery(#delivery{txn = Txn, - sender = ChPid, - message = Message} = Delivery, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - store_ch_record((ch_record(ChPid))#cr{txn = Txn}), - BQS1 = BQ:tx_publish(Txn, Message, ?BASE_MESSAGE_PROPERTIES, BQS), - {true, should_confirm_message(Delivery, State), - State#q{backing_queue_state = BQS1}}. - -deliver_or_enqueue(Delivery = #delivery{message = Message}, State) -> - {Delivered, Confirm, State1} = attempt_delivery(Delivery, State), - State2 = #q{backing_queue = BQ, backing_queue_state = BQS} = - maybe_record_confirm_message(Confirm, State1), - case Delivered of - true -> State2; - false -> BQS1 = - BQ:publish(Message, - (message_properties(State)) #message_properties{ - needs_confirming = needs_confirming(Confirm)}, - BQS), - ensure_ttl_timer(State2#q{backing_queue_state = BQS1}) - end. - -requeue_and_run(AckTags, State = #q{backing_queue = BQ, ttl=TTL}) -> - run_backing_queue( - fun (BQS) -> BQ:requeue(AckTags, reset_msg_expiry_fun(TTL), BQS) end, - State). - -fetch(AckRequired, State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - {Result, BQS1} = BQ:fetch(AckRequired, BQS), - {Result, State#q{backing_queue_state = BQS1}}. - -add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). - -remove_consumer(ChPid, ConsumerTag, Queue) -> - queue:filter(fun ({CP, #consumer{tag = CT}}) -> - (CP /= ChPid) or (CT /= ConsumerTag) - end, Queue). - -remove_consumers(ChPid, Queue) -> - {Kept, Removed} = split_by_channel(ChPid, Queue), - [emit_consumer_deleted(Ch, CTag) || - {Ch, #consumer{tag = CTag}} <- queue:to_list(Removed)], - Kept. - -move_consumers(ChPid, From, To) -> - {Kept, Removed} = split_by_channel(ChPid, From), - {Kept, queue:join(To, Removed)}. - -split_by_channel(ChPid, Queue) -> - {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, - queue:to_list(Queue)), - {queue:from_list(Kept), queue:from_list(Removed)}. - -possibly_unblock(State, ChPid, Update) -> - case lookup_ch(ChPid) of - not_found -> - State; - C -> - NewC = Update(C), - maybe_store_ch_record(NewC), - case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> {NewBlockedConsumers, NewActiveConsumers} = - move_consumers(ChPid, - State#q.blocked_consumers, - State#q.active_consumers), - run_message_queue( - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}) - end - end. - -should_auto_delete(#q{q = #amqqueue{auto_delete = false}}) -> false; -should_auto_delete(#q{has_had_consumers = false}) -> false; -should_auto_delete(State) -> is_unused(State). - -handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(DownPid) of - not_found -> - {ok, State}; - C = #cr{ch_pid = ChPid, txn = Txn, acktags = ChAckTags} -> - ok = erase_ch_record(C), - State1 = State#q{ - exclusive_consumer = case Holder of - {ChPid, _} -> none; - Other -> Other - end, - active_consumers = remove_consumers( - ChPid, State#q.active_consumers), - blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, - case should_auto_delete(State1) of - true -> {stop, State1}; - false -> State2 = case Txn of - none -> State1; - _ -> rollback_transaction(Txn, C, - State1) - end, - {ok, requeue_and_run(sets:to_list(ChAckTags), - ensure_expiry_timer(State2))} - end - end. - -cancel_holder(ChPid, ConsumerTag, {ChPid, ConsumerTag}) -> - none; -cancel_holder(_ChPid, _ConsumerTag, Holder) -> - Holder. - -check_exclusive_access({_ChPid, _ConsumerTag}, _ExclusiveConsume, _State) -> - in_use; -check_exclusive_access(none, false, _State) -> - ok; -check_exclusive_access(none, true, State) -> - case is_unused(State) of - true -> ok; - false -> in_use - end. - -is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso - queue:is_empty(State#q.blocked_consumers). - -maybe_send_reply(_ChPid, undefined) -> ok; -maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). - -qname(#q{q = #amqqueue{name = QName}}) -> QName. - -backing_queue_idle_timeout(State = #q{backing_queue = BQ}) -> - run_backing_queue(fun (BQS) -> BQ:idle_timeout(BQS) end, State). - -run_backing_queue(Fun, State = #q{backing_queue_state = BQS}) -> - run_message_queue(State#q{backing_queue_state = Fun(BQS)}). - -commit_transaction(Txn, From, C = #cr{acktags = ChAckTags}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL}) -> - {AckTags, BQS1} = BQ:tx_commit( - Txn, fun () -> gen_server2:reply(From, ok) end, - reset_msg_expiry_fun(TTL), BQS), - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1, txn = none}), - State#q{backing_queue_state = BQS1}. - -rollback_transaction(Txn, C, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {_AckTags, BQS1} = BQ:tx_rollback(Txn, BQS), - %% Iff we removed acktags from the channel record on ack+txn then - %% we would add them back in here. - maybe_store_ch_record(C#cr{txn = none}), - State#q{backing_queue_state = BQS1}. - -subtract_acks(A, B) when is_list(B) -> - lists:foldl(fun sets:del_element/2, A, B). - -reset_msg_expiry_fun(TTL) -> - fun(MsgProps) -> - MsgProps#message_properties{expiry = calculate_msg_expiry(TTL)} - end. - -message_properties(#q{ttl=TTL}) -> - #message_properties{expiry = calculate_msg_expiry(TTL)}. - -calculate_msg_expiry(undefined) -> undefined; -calculate_msg_expiry(TTL) -> now_micros() + (TTL * 1000). - -drop_expired_messages(State = #q{ttl = undefined}) -> - State; -drop_expired_messages(State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - Now = now_micros(), - BQS1 = BQ:dropwhile( - fun (#message_properties{expiry = Expiry}) -> Now > Expiry end, - BQS), - ensure_ttl_timer(State#q{backing_queue_state = BQS1}). - -ensure_ttl_timer(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL, - ttl_timer_ref = undefined}) - when TTL =/= undefined -> - case BQ:is_empty(BQS) of - true -> State; - false -> TRef = timer:apply_after(TTL, rabbit_amqqueue, drop_expired, - [self()]), - State#q{ttl_timer_ref = TRef} - end; -ensure_ttl_timer(State) -> - State. - -now_micros() -> timer:now_diff(now(), {0,0,0}). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(name, #q{q = #amqqueue{name = Name}}) -> Name; -i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; -i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; -i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(pid, _) -> - self(); -i(owner_pid, #q{q = #amqqueue{exclusive_owner = none}}) -> - ''; -i(owner_pid, #q{q = #amqqueue{exclusive_owner = ExclusiveOwner}}) -> - ExclusiveOwner; -i(exclusive_consumer_pid, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_pid, #q{exclusive_consumer = {ChPid, _ConsumerTag}}) -> - ChPid; -i(exclusive_consumer_tag, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_tag, #q{exclusive_consumer = {_ChPid, ConsumerTag}}) -> - ConsumerTag; -i(messages_ready, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:len(BQS); -i(messages_unacknowledged, _) -> - lists:sum([sets:size(C#cr.acktags) || C <- all_ch_record()]); -i(messages, State) -> - lists:sum([i(Item, State) || Item <- [messages_ready, - messages_unacknowledged]]); -i(consumers, State) -> - queue:len(State#q.active_consumers) + queue:len(State#q.blocked_consumers); -i(memory, _) -> - {memory, M} = process_info(self(), memory), - M; -i(backing_queue_status, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:status(BQS); -i(Item, _) -> - throw({bad_argument, Item}). - -consumers(#q{active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - rabbit_misc:queue_fold( - fun ({ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}, Acc) -> - [{ChPid, ConsumerTag, AckRequired} | Acc] - end, [], queue:join(ActiveConsumers, BlockedConsumers)). - -emit_stats(State) -> - emit_stats(State, []). - -emit_stats(State, Extra) -> - rabbit_event:notify(queue_stats, Extra ++ infos(?STATISTICS_KEYS, State)). - -emit_consumer_created(ChPid, ConsumerTag, Exclusive, AckRequired) -> - rabbit_event:notify(consumer_created, - [{consumer_tag, ConsumerTag}, - {exclusive, Exclusive}, - {ack_required, AckRequired}, - {channel, ChPid}, - {queue, self()}]). - -emit_consumer_deleted(ChPid, ConsumerTag) -> - rabbit_event:notify(consumer_deleted, - [{consumer_tag, ConsumerTag}, - {channel, ChPid}, - {queue, self()}]). - -%%---------------------------------------------------------------------------- - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - consumers -> 9; - {run_backing_queue, _Fun} -> 6; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - update_ram_duration -> 8; - delete_immediately -> 8; - {set_ram_duration_target, _Duration} -> 8; - {set_maximum_since_use, _Age} -> 8; - maybe_expire -> 8; - drop_expired -> 8; - emit_stats -> 7; - {ack, _Txn, _AckTags, _ChPid} -> 7; - {reject, _AckTags, _Requeue, _ChPid} -> 7; - {notify_sent, _ChPid} -> 7; - {unblock, _ChPid} -> 7; - {run_backing_queue, _Fun} -> 6; - sync_timeout -> 6; - _ -> 0 - end. - -prioritise_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - #q{q = #amqqueue{exclusive_owner = DownPid}}) -> 8; -prioritise_info(_Msg, _State) -> 0. - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = none}}) -> - declare(Recover, From, State); - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = Owner}}) -> - case rabbit_misc:is_process_alive(Owner) of - true -> erlang:monitor(process, Owner), - declare(Recover, From, State); - false -> #q{backing_queue = BQ, backing_queue_state = undefined, - q = #amqqueue{name = QName, durable = IsDurable}} = State, - gen_server2:reply(From, not_found), - case Recover of - true -> ok; - _ -> rabbit_log:warning( - "Queue ~p exclusive owner went away~n", [QName]) - end, - BQS = bq_init(BQ, QName, IsDurable, Recover), - %% Rely on terminate to delete the queue. - {stop, normal, State#q{backing_queue_state = BQS}} - end; - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(consumers, _From, State) -> - reply(consumers(State), State); - -handle_call({deliver_immediately, Delivery}, _From, State) -> - %% Synchronous, "immediate" delivery mode - %% - %% FIXME: Is this correct semantics? - %% - %% I'm worried in particular about the case where an exchange has - %% two queues against a particular routing key, and a message is - %% sent in immediate mode through the binding. In non-immediate - %% mode, both queues get the message, saving it for later if - %% there's noone ready to receive it just now. In immediate mode, - %% should both queues still get the message, somehow, or should - %% just all ready-to-consume queues get the message, with unready - %% queues discarding the message? - %% - {Delivered, Confirm, State1} = attempt_delivery(Delivery, State), - reply(Delivered, case Delivered of - true -> maybe_record_confirm_message(Confirm, State1); - false -> State1 - end); - -handle_call({deliver, Delivery}, From, State) -> - %% Synchronous, "mandatory" delivery mode. Reply asap. - gen_server2:reply(From, true), - noreply(deliver_or_enqueue(Delivery, State)); - -handle_call({commit, Txn, ChPid}, From, State) -> - case lookup_ch(ChPid) of - not_found -> reply(ok, State); - C -> noreply(run_message_queue( - commit_transaction(Txn, From, C, State))) - end; - -handle_call({notify_down, ChPid}, _From, State) -> - %% we want to do this synchronously, so that auto_deleted queues - %% are no longer visible by the time we send a response to the - %% client. The queue is ultimately deleted in terminate/2; if we - %% return stop with a reply, terminate/2 will be called by - %% gen_server2 *before* the reply is sent. - case handle_ch_down(ChPid, State) of - {ok, NewState} -> reply(ok, NewState); - {stop, NewState} -> {stop, normal, ok, NewState} - end; - -handle_call({basic_get, ChPid, NoAck}, _From, - State = #q{q = #amqqueue{name = QName}}) -> - AckRequired = not NoAck, - State1 = ensure_expiry_timer(State), - case fetch(AckRequired, drop_expired_messages(State1)) of - {empty, State2} -> - reply(empty, State2); - {{Message, IsDelivered, AckTag, Remaining}, State2} -> - State3 = - case AckRequired of - true -> C = #cr{acktags = ChAckTags} = ch_record(ChPid), - true = maybe_store_ch_record( - C#cr{acktags = - sets:add_element(AckTag, - ChAckTags)}), - State2; - false -> State2 - end, - Msg = {QName, self(), AckTag, IsDelivered, Message}, - reply({ok, Remaining, Msg}, State3) - end; - -handle_call({basic_consume, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg}, - _From, State = #q{exclusive_consumer = ExistingHolder}) -> - case check_exclusive_access(ExistingHolder, ExclusiveConsume, - State) of - in_use -> - reply({error, exclusive_consume_unavailable}, State); - ok -> - C = #cr{consumer_count = ConsumerCount} = ch_record(ChPid), - Consumer = #consumer{tag = ConsumerTag, - ack_required = not NoAck}, - true = maybe_store_ch_record(C#cr{consumer_count = ConsumerCount +1, - limiter_pid = LimiterPid}), - ok = case ConsumerCount of - 0 -> rabbit_limiter:register(LimiterPid, self()); - _ -> ok - end, - ExclusiveConsumer = if ExclusiveConsume -> {ChPid, ConsumerTag}; - true -> ExistingHolder - end, - State1 = State#q{has_had_consumers = true, - exclusive_consumer = ExclusiveConsumer}, - ok = maybe_send_reply(ChPid, OkMsg), - State2 = - case is_ch_blocked(C) of - true -> State1#q{ - blocked_consumers = - add_consumer(ChPid, Consumer, - State1#q.blocked_consumers)}; - false -> run_message_queue( - State1#q{ - active_consumers = - add_consumer(ChPid, Consumer, - State1#q.active_consumers)}) - end, - emit_consumer_created(ChPid, ConsumerTag, ExclusiveConsume, - not NoAck), - reply(ok, State2) - end; - -handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, - State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(ChPid) of - not_found -> - ok = maybe_send_reply(ChPid, OkMsg), - reply(ok, State); - C = #cr{consumer_count = ConsumerCount, - limiter_pid = LimiterPid} -> - C1 = C#cr{consumer_count = ConsumerCount -1}, - maybe_store_ch_record( - case ConsumerCount of - 1 -> ok = rabbit_limiter:unregister(LimiterPid, self()), - C1#cr{limiter_pid = undefined}; - _ -> C1 - end), - emit_consumer_deleted(ChPid, ConsumerTag), - ok = maybe_send_reply(ChPid, OkMsg), - NewState = - State#q{exclusive_consumer = cancel_holder(ChPid, - ConsumerTag, - Holder), - active_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.active_consumers), - blocked_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.blocked_consumers)}, - case should_auto_delete(NewState) of - false -> reply(ok, ensure_expiry_timer(NewState)); - true -> {stop, normal, ok, NewState} - end - end; - -handle_call(stat, _From, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS, - active_consumers = ActiveConsumers} = - drop_expired_messages(ensure_expiry_timer(State)), - reply({ok, BQ:len(BQS), queue:len(ActiveConsumers)}, State1); - -handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q{backing_queue_state = BQS, backing_queue = BQ}) -> - IsEmpty = BQ:is_empty(BQS), - IsUnused = is_unused(State), - if - IfEmpty and not(IsEmpty) -> - reply({error, not_empty}, State); - IfUnused and not(IsUnused) -> - reply({error, in_use}, State); - true -> - {stop, normal, {ok, BQ:len(BQS)}, State} - end; - -handle_call(purge, _From, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {Count, BQS1} = BQ:purge(BQS), - reply({ok, Count}, State#q{backing_queue_state = BQS1}); - -handle_call({requeue, AckTags, ChPid}, From, State) -> - gen_server2:reply(From, ok), - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(requeue_and_run(AckTags, State)) - end; - -handle_call({run_backing_queue, Fun}, _From, State) -> - reply(ok, run_backing_queue(Fun, State)). - - -handle_cast({run_backing_queue, Fun}, State) -> - noreply(run_backing_queue(Fun, State)); - -handle_cast(sync_timeout, State) -> - noreply(backing_queue_idle_timeout(State#q{sync_timer_ref = undefined})); - -handle_cast({deliver, Delivery}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - noreply(deliver_or_enqueue(Delivery, State)); - -handle_cast({ack, Txn, AckTags, ChPid}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - {C1, State1} = - case Txn of - none -> ChAckTags1 = subtract_acks(ChAckTags, AckTags), - NewC = C#cr{acktags = ChAckTags1}, - BQS1 = BQ:ack(AckTags, BQS), - {NewC, State#q{backing_queue_state = BQS1}}; - _ -> BQS1 = BQ:tx_ack(Txn, AckTags, BQS), - {C#cr{txn = Txn}, - State#q{backing_queue_state = BQS1}} - end, - maybe_store_ch_record(C1), - noreply(State1) - end; - -handle_cast({reject, AckTags, Requeue, ChPid}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(case Requeue of - true -> requeue_and_run(AckTags, State); - false -> BQS1 = BQ:ack(AckTags, BQS), - State#q{backing_queue_state = BQS1} - end) - end; - -handle_cast({rollback, Txn, ChPid}, State) -> - noreply(case lookup_ch(ChPid) of - not_found -> State; - C -> rollback_transaction(Txn, C, State) - end); - -handle_cast(delete_immediately, State) -> - {stop, normal, State}; - -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - -handle_cast({notify_sent, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C = #cr{unsent_message_count = Count}) -> - C#cr{unsent_message_count = Count - 1} - end)); - -handle_cast({limit, ChPid, LimiterPid}, State) -> - noreply( - possibly_unblock( - State, ChPid, - fun (C = #cr{consumer_count = ConsumerCount, - limiter_pid = OldLimiterPid, - is_limit_active = Limited}) -> - if ConsumerCount =/= 0 andalso OldLimiterPid == undefined -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, - NewLimited = Limited andalso LimiterPid =/= undefined, - C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({flush, ChPid}, State) -> - ok = rabbit_channel:flushed(ChPid, self()), - noreply(State); - -handle_cast(update_ram_duration, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State#q{rate_timer_ref = just_measured, - backing_queue_state = BQS2}); - -handle_cast({set_ram_duration_target, Duration}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - BQS1 = BQ:set_ram_duration_target(Duration, BQS), - noreply(State#q{backing_queue_state = BQS1}); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_cast(maybe_expire, State) -> - case is_unused(State) of - true -> ?LOGDEBUG("Queue lease expired for ~p~n", [State#q.q]), - {stop, normal, State}; - false -> noreply(ensure_expiry_timer(State)) - end; - -handle_cast(drop_expired, State) -> - noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); - -handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> - %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), - State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - assert_invariant(State1), - {noreply, State1, hibernate}. - -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> - %% Exclusively owned queues must disappear with their owner. In - %% the case of clean shutdown we delete the queue synchronously in - %% the reader - although not required by the spec this seems to - %% match what people expect (see bug 21824). However we need this - %% monitor-and-async- delete in case the connection goes away - %% unexpectedly. - {stop, normal, State}; -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> - case handle_ch_down(DownPid, State) of - {ok, NewState} -> noreply(NewState); - {stop, NewState} -> {stop, normal, NewState} - end; - -handle_info(timeout, State) -> - noreply(backing_queue_idle_timeout(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; - -handle_info(Info, State) -> - ?LOGDEBUG("Info in queue: ~p~n", [Info]), - {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q{backing_queue_state = undefined}) -> - {hibernate, State}; -handle_pre_hibernate(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - stats_timer = StatsTimer}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - BQS3 = BQ:handle_pre_hibernate(BQS2), - rabbit_event:if_enabled(StatsTimer, - fun () -> - emit_stats(State, [{idle_since, now()}]) - end), - State1 = State#q{stats_timer = rabbit_event:stop_stats_timer(StatsTimer), - backing_queue_state = BQS3}, - {hibernate, stop_rate_timer(State1)}. diff --git a/src/rabbit_amqqueue_sup.erl b/src/rabbit_amqqueue_sup.erl deleted file mode 100644 index 1344956e..00000000 --- a/src/rabbit_amqqueue_sup.erl +++ /dev/null @@ -1,38 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_sup). - --behaviour(supervisor2). - --export([start_link/0, start_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor2:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Args) -> - supervisor2:start_child(?SERVER, Args). - -init([]) -> - {ok, {{simple_one_for_one_terminate, 10, 10}, - [{rabbit_amqqueue, {rabbit_amqqueue_process, start_link, []}, - temporary, ?MAX_WAIT, worker, [rabbit_amqqueue_process]}]}}. diff --git a/src/rabbit_auth_backend.erl b/src/rabbit_auth_backend.erl deleted file mode 100644 index 09820c5b..00000000 --- a/src/rabbit_auth_backend.erl +++ /dev/null @@ -1,61 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description proplist as with auth mechanisms, - %% exchanges. Currently unused. - {description, 0}, - - %% Check a user can log in, given a username and a proplist of - %% authentication information (e.g. [{password, Password}]). - %% - %% Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {error, Error} - %% Something went wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {check_user_login, 2}, - - %% Given #user, vhost path and permission, can a user access a vhost? - %% Permission is read - learn of the existence of (only relevant for - %% management plugin) - %% or write - log in - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_vhost_access, 3}, - - %% Given #user, resource and permission, can a user access a resource? - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_resource_access, 3} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_backend_internal.erl b/src/rabbit_auth_backend_internal.erl deleted file mode 100644 index f70813d1..00000000 --- a/src/rabbit_auth_backend_internal.erl +++ /dev/null @@ -1,328 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend_internal). --include("rabbit.hrl"). - --behaviour(rabbit_auth_backend). - --export([description/0]). --export([check_user_login/2, check_vhost_access/3, check_resource_access/3]). - --export([add_user/2, delete_user/1, change_password/2, set_admin/1, - clear_admin/1, list_users/0, lookup_user/1, clear_password/1]). --export([make_salt/0, check_password/2, change_password_hash/2, - hash_password/1]). --export([set_permissions/5, clear_permissions/2, - list_permissions/0, list_vhost_permissions/1, list_user_permissions/1, - list_user_vhost_permissions/2]). - --include("rabbit_auth_backend_spec.hrl"). - --ifdef(use_specs). - --type(regexp() :: binary()). - --spec(add_user/2 :: (rabbit_types:username(), rabbit_types:password()) -> 'ok'). --spec(delete_user/1 :: (rabbit_types:username()) -> 'ok'). --spec(change_password/2 :: (rabbit_types:username(), rabbit_types:password()) - -> 'ok'). --spec(clear_password/1 :: (rabbit_types:username()) -> 'ok'). --spec(make_salt/0 :: () -> binary()). --spec(check_password/2 :: (rabbit_types:password(), - rabbit_types:password_hash()) -> boolean()). --spec(change_password_hash/2 :: (rabbit_types:username(), - rabbit_types:password_hash()) -> 'ok'). --spec(hash_password/1 :: (rabbit_types:password()) - -> rabbit_types:password_hash()). --spec(set_admin/1 :: (rabbit_types:username()) -> 'ok'). --spec(clear_admin/1 :: (rabbit_types:username()) -> 'ok'). --spec(list_users/0 :: () -> [{rabbit_types:username(), boolean()}]). --spec(lookup_user/1 :: (rabbit_types:username()) - -> rabbit_types:ok(rabbit_types:internal_user()) - | rabbit_types:error('not_found')). --spec(set_permissions/5 ::(rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()) -> 'ok'). --spec(clear_permissions/2 :: (rabbit_types:username(), rabbit_types:vhost()) - -> 'ok'). --spec(list_permissions/0 :: - () -> [{rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()}]). --spec(list_vhost_permissions/1 :: - (rabbit_types:vhost()) -> [{rabbit_types:username(), - regexp(), regexp(), regexp()}]). --spec(list_user_permissions/1 :: - (rabbit_types:username()) -> [{rabbit_types:vhost(), - regexp(), regexp(), regexp()}]). --spec(list_user_vhost_permissions/2 :: - (rabbit_types:username(), rabbit_types:vhost()) - -> [{regexp(), regexp(), regexp()}]). - --endif. - -%%---------------------------------------------------------------------------- - -%% Implementation of rabbit_auth_backend - -description() -> - [{name, <<"Internal">>}, - {description, <<"Internal user / password database">>}]. - -check_user_login(Username, []) -> - internal_check_user_login(Username, fun(_) -> true end); -check_user_login(Username, [{password, Password}]) -> - internal_check_user_login( - Username, fun(#internal_user{password_hash = Hash}) -> - check_password(Password, Hash) - end); -check_user_login(Username, AuthProps) -> - exit({unknown_auth_props, Username, AuthProps}). - -internal_check_user_login(Username, Fun) -> - Refused = {refused, "user '~s' - invalid credentials", [Username]}, - case lookup_user(Username) of - {ok, User = #internal_user{is_admin = IsAdmin}} -> - case Fun(User) of - true -> {ok, #user{username = Username, - is_admin = IsAdmin, - auth_backend = ?MODULE, - impl = User}}; - _ -> Refused - end; - {error, not_found} -> - Refused - end. - -check_vhost_access(#user{is_admin = true}, _VHostPath, read) -> - true; - -check_vhost_access(#user{username = Username}, VHostPath, _) -> - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> false; - [_R] -> true - end - end). - -check_resource_access(#user{username = Username}, - #resource{virtual_host = VHostPath, name = Name}, - Permission) -> - case mnesia:dirty_read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> - false; - [#user_permission{permission = P}] -> - PermRegexp = case element(permission_index(Permission), P) of - %% <<"^$">> breaks Emacs' erlang mode - <<"">> -> <<$^, $$>>; - RE -> RE - end, - case re:run(Name, PermRegexp, [{capture, none}]) of - match -> true; - nomatch -> false - end - end. - -permission_index(configure) -> #permission.configure; -permission_index(write) -> #permission.write; -permission_index(read) -> #permission.read. - -%%---------------------------------------------------------------------------- -%% Manipulation of the user database - -add_user(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_user, Username}) of - [] -> - ok = mnesia:write( - rabbit_user, - #internal_user{username = Username, - password_hash = - hash_password(Password), - is_admin = false}, - write); - _ -> - mnesia:abort({user_already_exists, Username}) - end - end), - rabbit_log:info("Created user ~p~n", [Username]), - R. - -delete_user(Username) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:delete({rabbit_user, Username}), - [ok = mnesia:delete_object( - rabbit_user_permission, R, write) || - R <- mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = '_'}, - permission = '_'}, - write)], - ok - end)), - rabbit_log:info("Deleted user ~p~n", [Username]), - R. - -change_password(Username, Password) -> - change_password_hash(Username, hash_password(Password)). - -clear_password(Username) -> - change_password_hash(Username, <<"">>). - -change_password_hash(Username, PasswordHash) -> - R = update_user(Username, fun(User) -> - User#internal_user{ - password_hash = PasswordHash } - end), - rabbit_log:info("Changed password for user ~p~n", [Username]), - R. - -hash_password(Cleartext) -> - Salt = make_salt(), - Hash = salted_md5(Salt, Cleartext), - <>. - -check_password(Cleartext, <>) -> - Hash =:= salted_md5(Salt, Cleartext). - -make_salt() -> - {A1,A2,A3} = now(), - random:seed(A1, A2, A3), - Salt = random:uniform(16#ffffffff), - <>. - -salted_md5(Salt, Cleartext) -> - Salted = <>, - erlang:md5(Salted). - -set_admin(Username) -> set_admin(Username, true). - -clear_admin(Username) -> set_admin(Username, false). - -set_admin(Username, IsAdmin) -> - R = update_user(Username, fun(User) -> - User#internal_user{is_admin = IsAdmin} - end), - rabbit_log:info("Set user admin flag for user ~p to ~p~n", - [Username, IsAdmin]), - R. - -update_user(Username, Fun) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - {ok, User} = lookup_user(Username), - ok = mnesia:write(rabbit_user, Fun(User), write) - end)). - -list_users() -> - [{Username, IsAdmin} || - #internal_user{username = Username, is_admin = IsAdmin} <- - mnesia:dirty_match_object(rabbit_user, #internal_user{_ = '_'})]. - -lookup_user(Username) -> - rabbit_misc:dirty_read({rabbit_user, Username}). - -validate_regexp(RegexpBin) -> - Regexp = binary_to_list(RegexpBin), - case re:compile(Regexp) of - {ok, _} -> ok; - {error, Reason} -> throw({error, {invalid_regexp, Regexp, Reason}}) - end. - -set_permissions(Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm) -> - lists:map(fun validate_regexp/1, [ConfigurePerm, WritePerm, ReadPerm]), - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> ok = mnesia:write( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}}, - write) - end)). - - -clear_permissions(Username, VHostPath) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> - ok = mnesia:delete({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) - end)). - -list_permissions() -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(match_user_vhost('_', '_'))]. - -list_vhost_permissions(VHostPath) -> - [{Username, ConfigurePerm, WritePerm, ReadPerm} || - {Username, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_vhost:with( - VHostPath, match_user_vhost('_', VHostPath)))]. - -list_user_permissions(Username) -> - [{VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - {_, VHostPath, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user( - Username, match_user_vhost(Username, '_')))]. - -list_user_vhost_permissions(Username, VHostPath) -> - [{ConfigurePerm, WritePerm, ReadPerm} || - {_, _, ConfigurePerm, WritePerm, ReadPerm} <- - list_permissions(rabbit_misc:with_user_and_vhost( - Username, VHostPath, - match_user_vhost(Username, VHostPath)))]. - -list_permissions(QueryThunk) -> - [{Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm} || - #user_permission{user_vhost = #user_vhost{username = Username, - virtual_host = VHostPath}, - permission = #permission{ configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}} <- - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction(QueryThunk)]. - -match_user_vhost(Username, VHostPath) -> - fun () -> mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = '_'}, - read) - end. diff --git a/src/rabbit_auth_mechanism.erl b/src/rabbit_auth_mechanism.erl deleted file mode 100644 index 897199ee..00000000 --- a/src/rabbit_auth_mechanism.erl +++ /dev/null @@ -1,46 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description. - {description, 0}, - - %% If this mechanism is enabled, should it be offered for a given socket? - %% (primarily so EXTERNAL can be SSL-only) - {should_offer, 1}, - - %% Called before authentication starts. Should create a state - %% object to be passed through all the stages of authentication. - {init, 1}, - - %% Handle a stage of authentication. Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {challenge, Challenge, NextState} - %% Another round is needed. Here's the state I want next time. - %% {protocol_error, Msg, Args} - %% Client got the protocol wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {handle_response, 2} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_mechanism_amqplain.erl b/src/rabbit_auth_mechanism_amqplain.erl deleted file mode 100644 index b8682a46..00000000 --- a/src/rabbit_auth_mechanism_amqplain.erl +++ /dev/null @@ -1,58 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_amqplain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism amqplain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"AMQPLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% AMQPLAIN, as used by Qpid Python test suite. The 0-8 spec actually -%% defines this as PLAIN, but in 0-9 that definition is gone, instead -%% referring generically to "SASL security mechanism", i.e. the above. - -description() -> - [{name, <<"AMQPLAIN">>}, - {description, <<"QPid AMQPLAIN mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - LoginTable = rabbit_binary_parser:parse_table(Response), - case {lists:keysearch(<<"LOGIN">>, 1, LoginTable), - lists:keysearch(<<"PASSWORD">>, 1, LoginTable)} of - {{value, {_, longstr, User}}, - {value, {_, longstr, Pass}}} -> - rabbit_access_control:check_user_pass_login(User, Pass); - _ -> - {protocol_error, - "AMQPLAIN auth info ~w is missing LOGIN or PASSWORD field", - [LoginTable]} - end. diff --git a/src/rabbit_auth_mechanism_cr_demo.erl b/src/rabbit_auth_mechanism_cr_demo.erl deleted file mode 100644 index acbb6e48..00000000 --- a/src/rabbit_auth_mechanism_cr_demo.erl +++ /dev/null @@ -1,60 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_cr_demo). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism cr-demo"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"RABBIT-CR-DEMO">>, - ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --record(state, {username = undefined}). - -%% Provides equivalent security to PLAIN but demos use of Connection.Secure(Ok) -%% START-OK: Username -%% SECURE: "Please tell me your password" -%% SECURE-OK: "My password is ~s", [Password] - -description() -> - [{name, <<"RABBIT-CR-DEMO">>}, - {description, <<"RabbitMQ Demo challenge-response authentication " - "mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - #state{}. - -handle_response(Response, State = #state{username = undefined}) -> - {challenge, <<"Please tell me your password">>, - State#state{username = Response}}; - -handle_response(<<"My password is ", Password/binary>>, - #state{username = Username}) -> - rabbit_access_control:check_user_pass_login(Username, Password); -handle_response(Response, _State) -> - {protocol_error, "Invalid response '~s'", [Response]}. diff --git a/src/rabbit_auth_mechanism_plain.erl b/src/rabbit_auth_mechanism_plain.erl deleted file mode 100644 index 2448acb6..00000000 --- a/src/rabbit_auth_mechanism_plain.erl +++ /dev/null @@ -1,76 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_plain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism plain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"PLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% SASL PLAIN, as used by the Qpid Java client and our clients. Also, -%% apparently, by OpenAMQ. - -%% TODO: once the minimum erlang becomes R13B03, reimplement this -%% using the binary module - that makes use of BIFs to do binary -%% matching and will thus be much faster. - -description() -> - [{name, <<"PLAIN">>}, - {description, <<"SASL PLAIN authentication mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - case extract_user_pass(Response) of - {ok, User, Pass} -> - rabbit_access_control:check_user_pass_login(User, Pass); - error -> - {protocol_error, "response ~p invalid", [Response]} - end. - -extract_user_pass(Response) -> - case extract_elem(Response) of - {ok, User, Response1} -> case extract_elem(Response1) of - {ok, Pass, <<>>} -> {ok, User, Pass}; - _ -> error - end; - error -> error - end. - -extract_elem(<<0:8, Rest/binary>>) -> - Count = next_null_pos(Rest, 0), - <> = Rest, - {ok, Elem, Rest1}; -extract_elem(_) -> - error. - -next_null_pos(<<>>, Count) -> Count; -next_null_pos(<<0:8, _Rest/binary>>, Count) -> Count; -next_null_pos(<<_:8, Rest/binary>>, Count) -> next_null_pos(Rest, Count + 1). diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl deleted file mode 100644 index 0ca8d260..00000000 --- a/src/rabbit_backing_queue.erl +++ /dev/null @@ -1,171 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_backing_queue). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% Called on startup with a list of durable queue names. The - %% queues aren't being started at this point, but this call - %% allows the backing queue to perform any checking necessary for - %% the consistency of those queues, or initialise any other - %% shared resources. - {start, 1}, - - %% Called to tear down any state/resources. NB: Implementations - %% should not depend on this function being called on shutdown - %% and instead should hook into the rabbit supervision hierarchy. - {stop, 0}, - - %% Initialise the backing queue and its state. - %% - %% Takes - %% 1. the queue name - %% 2. a boolean indicating whether the queue is durable - %% 3. a boolean indicating whether the queue is an existing queue - %% that should be recovered - %% 4. an asynchronous callback which accepts a function of type - %% backing-queue-state to backing-queue-state. This callback - %% function can be safely invoked from any process, which - %% makes it useful for passing messages back into the backing - %% queue, especially as the backing queue does not have - %% control of its own mailbox. - %% 5. a synchronous callback. Same as the asynchronous callback - %% but waits for completion and returns 'error' on error. - {init, 5}, - - %% Called on queue shutdown when queue isn't being deleted. - {terminate, 1}, - - %% Called when the queue is terminating and needs to delete all - %% its content. - {delete_and_terminate, 1}, - - %% Remove all messages in the queue, but not messages which have - %% been fetched and are pending acks. - {purge, 1}, - - %% Publish a message. - {publish, 3}, - - %% Called for messages which have already been passed straight - %% out to a client. The queue will be empty for these calls - %% (i.e. saves the round trip through the backing queue). - {publish_delivered, 4}, - - %% Return ids of messages which have been confirmed since - %% the last invocation of this function (or initialisation). - %% - %% Message ids should only appear in the result of - %% drain_confirmed under the following circumstances: - %% - %% 1. The message appears in a call to publish_delivered/4 and - %% the first argument (ack_required) is false; or - %% 2. The message is fetched from the queue with fetch/2 and the - %% first argument (ack_required) is false; or - %% 3. The message is acked (ack/2 is called for the message); or - %% 4. The message is fully fsync'd to disk in such a way that the - %% recovery of the message is guaranteed in the event of a - %% crash of this rabbit node (excluding hardware failure). - %% - %% In addition to the above conditions, a message id may only - %% appear in the result of drain_confirmed if - %% #message_properties.needs_confirming = true when the msg was - %% published (through whichever means) to the backing queue. - %% - %% It is legal for the same message id to appear in the results - %% of multiple calls to drain_confirmed, which means that the - %% backing queue is not required to keep track of which messages - %% it has already confirmed. The confirm will be issued to the - %% publisher the first time the message id appears in the result - %% of drain_confirmed. All subsequent appearances of that message - %% id will be ignored. - {drain_confirmed, 1}, - - %% Drop messages from the head of the queue while the supplied - %% predicate returns true. - {dropwhile, 2}, - - %% Produce the next message. - {fetch, 2}, - - %% Acktags supplied are for messages which can now be forgotten - %% about. Must return 1 msg_id per Ack, in the same order as Acks. - {ack, 2}, - - %% A publish, but in the context of a transaction. - {tx_publish, 4}, - - %% Acks, but in the context of a transaction. - {tx_ack, 3}, - - %% Undo anything which has been done in the context of the - %% specified transaction. - {tx_rollback, 2}, - - %% Commit a transaction. The Fun passed in must be called once - %% the messages have really been commited. This CPS permits the - %% possibility of commit coalescing. - {tx_commit, 4}, - - %% Reinsert messages into the queue which have already been - %% delivered and were pending acknowledgement. - {requeue, 3}, - - %% How long is my queue? - {len, 1}, - - %% Is my queue empty? - {is_empty, 1}, - - %% For the next three functions, the assumption is that you're - %% monitoring something like the ingress and egress rates of the - %% queue. The RAM duration is thus the length of time represented - %% by the messages held in RAM given the current rates. If you - %% want to ignore all of this stuff, then do so, and return 0 in - %% ram_duration/1. - - %% The target is to have no more messages in RAM than indicated - %% by the duration and the current queue rates. - {set_ram_duration_target, 2}, - - %% Optionally recalculate the duration internally (likely to be - %% just update your internal rates), and report how many seconds - %% the messages in RAM represent given the current rates of the - %% queue. - {ram_duration, 1}, - - %% Should 'idle_timeout' be called as soon as the queue process - %% can manage (either on an empty mailbox, or when a timer - %% fires)? - {needs_idle_timeout, 1}, - - %% Called (eventually) after needs_idle_timeout returns - %% 'true'. Note this may be called more than once for each 'true' - %% returned from needs_idle_timeout. - {idle_timeout, 1}, - - %% Called immediately before the queue hibernates. - {handle_pre_hibernate, 1}, - - %% Exists for debugging purposes, to be able to expose state via - %% rabbitmqctl list_queues backing_queue_status - {status, 1} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl deleted file mode 100644 index 3cf73e80..00000000 --- a/src/rabbit_basic.erl +++ /dev/null @@ -1,189 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_basic). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([publish/1, message/3, message/4, properties/1, delivery/5]). --export([publish/4, publish/7]). --export([build_content/2, from_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(properties_input() :: - (rabbit_framing:amqp_property_record() | [{atom(), any()}])). --type(publish_result() :: - ({ok, rabbit_router:routing_result(), [pid()]} - | rabbit_types:error('not_found'))). - --spec(publish/1 :: - (rabbit_types:delivery()) -> publish_result()). --spec(delivery/5 :: - (boolean(), boolean(), rabbit_types:maybe(rabbit_types:txn()), - rabbit_types:message(), undefined | integer()) -> - rabbit_types:delivery()). --spec(message/4 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - properties_input(), binary()) -> rabbit_types:message()). --spec(message/3 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - rabbit_types:decoded_content()) -> - rabbit_types:ok_or_error2(rabbit_types:message(), any())). --spec(properties/1 :: - (properties_input()) -> rabbit_framing:amqp_property_record()). --spec(publish/4 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - properties_input(), binary()) -> publish_result()). --spec(publish/7 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - boolean(), boolean(), rabbit_types:maybe(rabbit_types:txn()), - properties_input(), binary()) -> publish_result()). --spec(build_content/2 :: (rabbit_framing:amqp_property_record(), binary()) -> - rabbit_types:content()). --spec(from_content/1 :: (rabbit_types:content()) -> - {rabbit_framing:amqp_property_record(), binary()}). - --endif. - -%%---------------------------------------------------------------------------- - -publish(Delivery = #delivery{ - message = #basic_message{exchange_name = ExchangeName}}) -> - case rabbit_exchange:lookup(ExchangeName) of - {ok, X} -> - {RoutingRes, DeliveredQPids} = rabbit_exchange:publish(X, Delivery), - {ok, RoutingRes, DeliveredQPids}; - Other -> - Other - end. - -delivery(Mandatory, Immediate, Txn, Message, MsgSeqNo) -> - #delivery{mandatory = Mandatory, immediate = Immediate, txn = Txn, - sender = self(), message = Message, msg_seq_no = MsgSeqNo}. - -build_content(Properties, BodyBin) -> - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - #content{class_id = ClassId, - properties = Properties, - properties_bin = none, - protocol = none, - payload_fragments_rev = [BodyBin]}. - -from_content(Content) -> - #content{class_id = ClassId, - properties = Props, - payload_fragments_rev = FragmentsRev} = - rabbit_binary_parser:ensure_content_decoded(Content), - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - {Props, list_to_binary(lists:reverse(FragmentsRev))}. - -%% This breaks the spec rule forbidding message modification -strip_header(#content{properties = #'P_basic'{headers = undefined}} - = DecodedContent, _Key) -> - DecodedContent; -strip_header(#content{properties = Props = #'P_basic'{headers = Headers}} - = DecodedContent, Key) -> - case lists:keysearch(Key, 1, Headers) of - false -> DecodedContent; - {value, Found} -> Headers0 = lists:delete(Found, Headers), - rabbit_binary_generator:clear_encoded_content( - DecodedContent#content{ - properties = Props#'P_basic'{ - headers = Headers0}}) - end. - -message(ExchangeName, RoutingKey, - #content{properties = Props} = DecodedContent) -> - try - {ok, #basic_message{ - exchange_name = ExchangeName, - content = strip_header(DecodedContent, ?DELETED_HEADER), - id = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent), - routing_keys = [RoutingKey | - header_routes(Props#'P_basic'.headers)]}} - catch - {error, _Reason} = Error -> Error - end. - -message(ExchangeName, RoutingKey, RawProperties, BodyBin) -> - Properties = properties(RawProperties), - Content = build_content(Properties, BodyBin), - {ok, Msg} = message(ExchangeName, RoutingKey, Content), - Msg. - -properties(P = #'P_basic'{}) -> - P; -properties(P) when is_list(P) -> - %% Yes, this is O(length(P) * record_info(size, 'P_basic') / 2), - %% i.e. slow. Use the definition of 'P_basic' directly if - %% possible! - lists:foldl(fun ({Key, Value}, Acc) -> - case indexof(record_info(fields, 'P_basic'), Key) of - 0 -> throw({unknown_basic_property, Key}); - N -> setelement(N + 1, Acc, Value) - end - end, #'P_basic'{}, P). - -indexof(L, Element) -> indexof(L, Element, 1). - -indexof([], _Element, _N) -> 0; -indexof([Element | _Rest], Element, N) -> N; -indexof([_ | Rest], Element, N) -> indexof(Rest, Element, N + 1). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(ExchangeName, RoutingKeyBin, Properties, BodyBin) -> - publish(ExchangeName, RoutingKeyBin, false, false, none, Properties, - BodyBin). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(ExchangeName, RoutingKeyBin, Mandatory, Immediate, Txn, Properties, - BodyBin) -> - publish(delivery(Mandatory, Immediate, Txn, - message(ExchangeName, RoutingKeyBin, - properties(Properties), BodyBin), - undefined)). - -is_message_persistent(#content{properties = #'P_basic'{ - delivery_mode = Mode}}) -> - case Mode of - 1 -> false; - 2 -> true; - undefined -> false; - Other -> throw({error, {delivery_mode_unknown, Other}}) - end. - -%% Extract CC routes from headers -header_routes(undefined) -> - []; -header_routes(HeadersTable) -> - lists:append( - [case rabbit_misc:table_lookup(HeadersTable, HeaderKey) of - {array, Routes} -> [Route || {longstr, Route} <- Routes]; - undefined -> []; - {Type, _Val} -> throw({error, {unacceptable_type_in_header, - Type, - binary_to_list(HeaderKey)}}) - end || HeaderKey <- ?ROUTING_HEADERS]). diff --git a/src/rabbit_binary_generator.erl b/src/rabbit_binary_generator.erl deleted file mode 100644 index 68511a32..00000000 --- a/src/rabbit_binary_generator.erl +++ /dev/null @@ -1,337 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_generator). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - -%% EMPTY_CONTENT_BODY_FRAME_SIZE, 8 = 1 + 2 + 4 + 1 -%% - 1 byte of frame type -%% - 2 bytes of channel number -%% - 4 bytes of frame payload length -%% - 1 byte of payload trailer FRAME_END byte -%% See definition of check_empty_content_body_frame_size/0, -%% an assertion called at startup. --define(EMPTY_CONTENT_BODY_FRAME_SIZE, 8). - --export([build_simple_method_frame/3, - build_simple_content_frames/4, - build_heartbeat_frame/0]). --export([generate_table/1, encode_properties/2]). --export([check_empty_content_body_frame_size/0]). --export([ensure_content_encoded/2, clear_encoded_content/1]). --export([map_exception/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame() :: [binary()]). - --spec(build_simple_method_frame/3 :: - (rabbit_channel:channel_number(), rabbit_framing:amqp_method_record(), - rabbit_types:protocol()) - -> frame()). --spec(build_simple_content_frames/4 :: - (rabbit_channel:channel_number(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> [frame()]). --spec(build_heartbeat_frame/0 :: () -> frame()). --spec(generate_table/1 :: (rabbit_framing:amqp_table()) -> binary()). --spec(encode_properties/2 :: - ([rabbit_framing:amqp_property_type()], [any()]) -> binary()). --spec(check_empty_content_body_frame_size/0 :: () -> 'ok'). --spec(ensure_content_encoded/2 :: - (rabbit_types:content(), rabbit_types:protocol()) -> - rabbit_types:encoded_content()). --spec(clear_encoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:unencoded_content()). --spec(map_exception/3 :: (rabbit_channel:channel_number(), - rabbit_types:amqp_error() | any(), - rabbit_types:protocol()) -> - {rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record()}). - --endif. - -%%---------------------------------------------------------------------------- - -build_simple_method_frame(ChannelInt, MethodRecord, Protocol) -> - MethodFields = Protocol:encode_method_fields(MethodRecord), - MethodName = rabbit_misc:method_record_type(MethodRecord), - {ClassId, MethodId} = Protocol:method_id(MethodName), - create_frame(1, ChannelInt, [<>, MethodFields]). - -build_simple_content_frames(ChannelInt, Content, FrameMax, Protocol) -> - #content{class_id = ClassId, - properties_bin = ContentPropertiesBin, - payload_fragments_rev = PayloadFragmentsRev} = - ensure_content_encoded(Content, Protocol), - {BodySize, ContentFrames} = - build_content_frames(PayloadFragmentsRev, FrameMax, ChannelInt), - HeaderFrame = create_frame(2, ChannelInt, - [<>, - ContentPropertiesBin]), - [HeaderFrame | ContentFrames]. - -build_content_frames(FragsRev, FrameMax, ChannelInt) -> - BodyPayloadMax = if FrameMax == 0 -> - iolist_size(FragsRev); - true -> - FrameMax - ?EMPTY_CONTENT_BODY_FRAME_SIZE - end, - build_content_frames(0, [], BodyPayloadMax, [], - lists:reverse(FragsRev), BodyPayloadMax, ChannelInt). - -build_content_frames(SizeAcc, FramesAcc, _FragSizeRem, [], - [], _BodyPayloadMax, _ChannelInt) -> - {SizeAcc, lists:reverse(FramesAcc)}; -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - Frags, BodyPayloadMax, ChannelInt) - when FragSizeRem == 0 orelse Frags == [] -> - Frame = create_frame(3, ChannelInt, lists:reverse(FragAcc)), - FrameSize = BodyPayloadMax - FragSizeRem, - build_content_frames(SizeAcc + FrameSize, [Frame | FramesAcc], - BodyPayloadMax, [], Frags, BodyPayloadMax, ChannelInt); -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - [Frag | Frags], BodyPayloadMax, ChannelInt) -> - Size = size(Frag), - {NewFragSizeRem, NewFragAcc, NewFrags} = - if Size == 0 -> {FragSizeRem, FragAcc, Frags}; - Size =< FragSizeRem -> {FragSizeRem - Size, [Frag | FragAcc], Frags}; - true -> <> = - Frag, - {0, [Head | FragAcc], [Tail | Frags]} - end, - build_content_frames(SizeAcc, FramesAcc, NewFragSizeRem, NewFragAcc, - NewFrags, BodyPayloadMax, ChannelInt). - -build_heartbeat_frame() -> - create_frame(?FRAME_HEARTBEAT, 0, <<>>). - -create_frame(TypeInt, ChannelInt, PayloadBin) when is_binary(PayloadBin) -> - [<>, PayloadBin, <>]; -create_frame(TypeInt, ChannelInt, Payload) -> - create_frame(TypeInt, ChannelInt, list_to_binary(Payload)). - -%% table_field_to_binary supports the AMQP 0-8/0-9 standard types, S, -%% I, D, T and F, as well as the QPid extensions b, d, f, l, s, t, x, -%% and V. - -table_field_to_binary({FName, Type, Value}) -> - [short_string_to_binary(FName) | field_value_to_binary(Type, Value)]. - -field_value_to_binary(longstr, Value) -> - ["S", long_string_to_binary(Value)]; - -field_value_to_binary(signedint, Value) -> - ["I", <>]; - -field_value_to_binary(decimal, {Before, After}) -> - ["D", Before, <>]; - -field_value_to_binary(timestamp, Value) -> - ["T", <>]; - -field_value_to_binary(table, Value) -> - ["F", table_to_binary(Value)]; - -field_value_to_binary(array, Value) -> - ["A", array_to_binary(Value)]; - -field_value_to_binary(byte, Value) -> - ["b", <>]; - -field_value_to_binary(double, Value) -> - ["d", <>]; - -field_value_to_binary(float, Value) -> - ["f", <>]; - -field_value_to_binary(long, Value) -> - ["l", <>]; - -field_value_to_binary(short, Value) -> - ["s", <>]; - -field_value_to_binary(bool, Value) -> - ["t", if Value -> 1; true -> 0 end]; - -field_value_to_binary(binary, Value) -> - ["x", long_string_to_binary(Value)]; - -field_value_to_binary(void, _Value) -> - ["V"]. - -table_to_binary(Table) when is_list(Table) -> - BinTable = generate_table(Table), - [<<(size(BinTable)):32>>, BinTable]. - -array_to_binary(Array) when is_list(Array) -> - BinArray = generate_array(Array), - [<<(size(BinArray)):32>>, BinArray]. - -generate_table(Table) when is_list(Table) -> - list_to_binary(lists:map(fun table_field_to_binary/1, Table)). - -generate_array(Array) when is_list(Array) -> - list_to_binary(lists:map( - fun ({Type, Value}) -> field_value_to_binary(Type, Value) end, - Array)). - -short_string_to_binary(String) when is_binary(String) -> - Len = size(String), - if Len < 256 -> [<<(size(String)):8>>, String]; - true -> exit(content_properties_shortstr_overflow) - end; -short_string_to_binary(String) -> - StringLength = length(String), - if StringLength < 256 -> [<>, String]; - true -> exit(content_properties_shortstr_overflow) - end. - -long_string_to_binary(String) when is_binary(String) -> - [<<(size(String)):32>>, String]; -long_string_to_binary(String) -> - [<<(length(String)):32>>, String]. - -encode_properties([], []) -> - <<0, 0>>; -encode_properties(TypeList, ValueList) -> - encode_properties(0, TypeList, ValueList, 0, [], []). - -encode_properties(_Bit, [], [], FirstShortAcc, FlagsAcc, PropsAcc) -> - list_to_binary([lists:reverse(FlagsAcc), <>, lists:reverse(PropsAcc)]); -encode_properties(_Bit, [], _ValueList, _FirstShortAcc, _FlagsAcc, _PropsAcc) -> - exit(content_properties_values_overflow); -encode_properties(15, TypeList, ValueList, FirstShortAcc, FlagsAcc, PropsAcc) -> - NewFlagsShort = FirstShortAcc bor 1, % set the continuation low bit - encode_properties(0, TypeList, ValueList, 0, [<> | FlagsAcc], PropsAcc); -encode_properties(Bit, [bit | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - true -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), FlagsAcc, PropsAcc); - false -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - Other -> exit({content_properties_illegal_bit_value, Other}) - end; -encode_properties(Bit, [T | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - undefined -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - _ -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), - FlagsAcc, - [encode_property(T, Value) | PropsAcc]) - end. - -encode_property(shortstr, String) -> - Len = size(String), - if Len < 256 -> <>; - true -> exit(content_properties_shortstr_overflow) - end; -encode_property(longstr, String) -> - Len = size(String), <>; -encode_property(octet, Int) -> - <>; -encode_property(shortint, Int) -> - <>; -encode_property(longint, Int) -> - <>; -encode_property(longlongint, Int) -> - <>; -encode_property(timestamp, Int) -> - <>; -encode_property(table, Table) -> - table_to_binary(Table). - -check_empty_content_body_frame_size() -> - %% Intended to ensure that EMPTY_CONTENT_BODY_FRAME_SIZE is - %% defined correctly. - ComputedSize = size(list_to_binary(create_frame(?FRAME_BODY, 0, <<>>))), - if ComputedSize == ?EMPTY_CONTENT_BODY_FRAME_SIZE -> - ok; - true -> - exit({incorrect_empty_content_body_frame_size, - ComputedSize, ?EMPTY_CONTENT_BODY_FRAME_SIZE}) - end. - -ensure_content_encoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}, Protocol) - when PropBin =/= none -> - Content; -ensure_content_encoded(Content = #content{properties = none, - properties_bin = PropBin, - protocol = Protocol}, Protocol1) - when PropBin =/= none -> - Props = Protocol:decode_properties(Content#content.class_id, PropBin), - Content#content{properties = Props, - properties_bin = Protocol1:encode_properties(Props), - protocol = Protocol1}; -ensure_content_encoded(Content = #content{properties = Props}, Protocol) - when Props =/= none -> - Content#content{properties_bin = Protocol:encode_properties(Props), - protocol = Protocol}. - -clear_encoded_content(Content = #content{properties_bin = none, - protocol = none}) -> - Content; -clear_encoded_content(Content = #content{properties = none}) -> - %% Only clear when we can rebuild the properties_bin later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_encoded_content(Content = #content{}) -> - Content#content{properties_bin = none, protocol = none}. - -%% NB: this function is also used by the Erlang client -map_exception(Channel, Reason, Protocol) -> - {SuggestedClose, ReplyCode, ReplyText, FailedMethod} = - lookup_amqp_exception(Reason, Protocol), - {ClassId, MethodId} = case FailedMethod of - {_, _} -> FailedMethod; - none -> {0, 0}; - _ -> Protocol:method_id(FailedMethod) - end, - case SuggestedClose orelse (Channel == 0) of - true -> {0, #'connection.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}}; - false -> {Channel, #'channel.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}} - end. - -lookup_amqp_exception(#amqp_error{name = Name, - explanation = Expl, - method = Method}, - Protocol) -> - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(Name), - ExplBin = amqp_exception_explanation(Text, Expl), - {ShouldClose, Code, ExplBin, Method}; -lookup_amqp_exception(Other, Protocol) -> - rabbit_log:warning("Non-AMQP exit reason '~p'~n", [Other]), - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(internal_error), - {ShouldClose, Code, Text, none}. - -amqp_exception_explanation(Text, Expl) -> - ExplBin = list_to_binary(Expl), - CompleteTextBin = <>, - if size(CompleteTextBin) > 255 -> <>; - true -> CompleteTextBin - end. diff --git a/src/rabbit_binary_parser.erl b/src/rabbit_binary_parser.erl deleted file mode 100644 index 88026bab..00000000 --- a/src/rabbit_binary_parser.erl +++ /dev/null @@ -1,165 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_parser). - --include("rabbit.hrl"). - --export([parse_table/1, parse_properties/2]). --export([ensure_content_decoded/1, clear_decoded_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(parse_table/1 :: (binary()) -> rabbit_framing:amqp_table()). --spec(parse_properties/2 :: - ([rabbit_framing:amqp_property_type()], binary()) -> [any()]). --spec(ensure_content_decoded/1 :: - (rabbit_types:content()) -> rabbit_types:decoded_content()). --spec(clear_decoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:undecoded_content()). - --endif. - -%%---------------------------------------------------------------------------- - -%% parse_table supports the AMQP 0-8/0-9 standard types, S, I, D, T -%% and F, as well as the QPid extensions b, d, f, l, s, t, x, and V. - -parse_table(<<>>) -> - []; -parse_table(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{NameString, Type, Value} | parse_table(Rest)]. - -parse_array(<<>>) -> - []; -parse_array(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{Type, Value} | parse_array(Rest)]. - -parse_field_value(<<"S", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {longstr, ValueString, Rest}; - -parse_field_value(<<"I", Value:32/signed, Rest/binary>>) -> - {signedint, Value, Rest}; - -parse_field_value(<<"D", Before:8/unsigned, After:32/unsigned, Rest/binary>>) -> - {decimal, {Before, After}, Rest}; - -parse_field_value(<<"T", Value:64/unsigned, Rest/binary>>) -> - {timestamp, Value, Rest}; - -parse_field_value(<<"F", VLen:32/unsigned, Table:VLen/binary, Rest/binary>>) -> - {table, parse_table(Table), Rest}; - -parse_field_value(<<"A", VLen:32/unsigned, Array:VLen/binary, Rest/binary>>) -> - {array, parse_array(Array), Rest}; - -parse_field_value(<<"b", Value:8/unsigned, Rest/binary>>) -> - {byte, Value, Rest}; - -parse_field_value(<<"d", Value:64/float, Rest/binary>>) -> - {double, Value, Rest}; - -parse_field_value(<<"f", Value:32/float, Rest/binary>>) -> - {float, Value, Rest}; - -parse_field_value(<<"l", Value:64/signed, Rest/binary>>) -> - {long, Value, Rest}; - -parse_field_value(<<"s", Value:16/signed, Rest/binary>>) -> - {short, Value, Rest}; - -parse_field_value(<<"t", Value:8/unsigned, Rest/binary>>) -> - {bool, (Value /= 0), Rest}; - -parse_field_value(<<"x", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {binary, ValueString, Rest}; - -parse_field_value(<<"V", Rest/binary>>) -> - {void, undefined, Rest}. - - -parse_properties([], _PropBin) -> - []; -parse_properties(TypeList, PropBin) -> - FlagCount = length(TypeList), - %% round up to the nearest multiple of 15 bits, since the 16th bit - %% in each short is a "continuation" bit. - FlagsLengthBytes = trunc((FlagCount + 14) / 15) * 2, - <> = PropBin, - <> = Flags, - parse_properties(0, TypeList, [], FirstShort, Remainder, Properties). - -parse_properties(_Bit, [], Acc, _FirstShort, - _Remainder, <<>>) -> - lists:reverse(Acc); -parse_properties(_Bit, [], _Acc, _FirstShort, - _Remainder, _LeftoverBin) -> - exit(content_properties_binary_overflow); -parse_properties(15, TypeList, Acc, _OldFirstShort, - <>, Properties) -> - parse_properties(0, TypeList, Acc, NewFirstShort, Remainder, Properties); -parse_properties(Bit, [Type | TypeListRest], Acc, FirstShort, - Remainder, Properties) -> - {Value, Rest} = - if (FirstShort band (1 bsl (15 - Bit))) /= 0 -> - parse_property(Type, Properties); - Type == bit -> {false , Properties}; - true -> {undefined, Properties} - end, - parse_properties(Bit + 1, TypeListRest, [Value | Acc], FirstShort, - Remainder, Rest). - -parse_property(shortstr, <>) -> - {String, Rest}; -parse_property(longstr, <>) -> - {String, Rest}; -parse_property(octet, <>) -> - {Int, Rest}; -parse_property(shortint, <>) -> - {Int, Rest}; -parse_property(longint, <>) -> - {Int, Rest}; -parse_property(longlongint, <>) -> - {Int, Rest}; -parse_property(timestamp, <>) -> - {Int, Rest}; -parse_property(bit, Rest) -> - {true, Rest}; -parse_property(table, <>) -> - {parse_table(Table), Rest}. - -ensure_content_decoded(Content = #content{properties = Props}) - when Props =/= none -> - Content; -ensure_content_decoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}) - when PropBin =/= none -> - Content#content{properties = Protocol:decode_properties( - Content#content.class_id, PropBin)}. - -clear_decoded_content(Content = #content{properties = none}) -> - Content; -clear_decoded_content(Content = #content{properties_bin = none}) -> - %% Only clear when we can rebuild the properties later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_decoded_content(Content = #content{}) -> - Content#content{properties = none}. diff --git a/src/rabbit_binding.erl b/src/rabbit_binding.erl deleted file mode 100644 index 6167790e..00000000 --- a/src/rabbit_binding.erl +++ /dev/null @@ -1,423 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binding). --include("rabbit.hrl"). - --export([recover/0, exists/1, add/1, remove/1, add/2, remove/2, list/1]). --export([list_for_source/1, list_for_destination/1, - list_for_source_and_destination/2]). --export([new_deletions/0, combine_deletions/2, add_deletion/3, - process_deletions/2]). --export([info_keys/0, info/1, info/2, info_all/1, info_all/2]). -%% these must all be run inside a mnesia tx --export([has_for_source/1, remove_for_source/1, - remove_for_destination/1, remove_transient_for_destination/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([key/0, deletions/0]). - --type(key() :: binary()). - --type(bind_errors() :: rabbit_types:error('source_not_found' | - 'destination_not_found' | - 'source_and_destination_not_found')). --type(bind_res() :: 'ok' | bind_errors()). --type(inner_fun() :: - fun((rabbit_types:exchange(), - rabbit_types:exchange() | rabbit_types:amqqueue()) -> - rabbit_types:ok_or_error(rabbit_types:amqp_error()))). --type(bindings() :: [rabbit_types:binding()]). --type(add_res() :: bind_res() | rabbit_misc:const(bind_res())). --type(bind_or_error() :: bind_res() | rabbit_types:error('binding_not_found')). --type(remove_res() :: bind_or_error() | rabbit_misc:const(bind_or_error())). - --opaque(deletions() :: dict()). - --spec(recover/0 :: () -> [rabbit_types:binding()]). --spec(exists/1 :: (rabbit_types:binding()) -> boolean() | bind_errors()). --spec(add/1 :: (rabbit_types:binding()) -> add_res()). --spec(remove/1 :: (rabbit_types:binding()) -> remove_res()). --spec(add/2 :: (rabbit_types:binding(), inner_fun()) -> add_res()). --spec(remove/2 :: (rabbit_types:binding(), inner_fun()) -> remove_res()). --spec(list/1 :: (rabbit_types:vhost()) -> bindings()). --spec(list_for_source/1 :: - (rabbit_types:binding_source()) -> bindings()). --spec(list_for_destination/1 :: - (rabbit_types:binding_destination()) -> bindings()). --spec(list_for_source_and_destination/2 :: - (rabbit_types:binding_source(), rabbit_types:binding_destination()) -> - bindings()). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:binding()) -> rabbit_types:infos()). --spec(info/2 :: (rabbit_types:binding(), rabbit_types:info_keys()) -> - rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(has_for_source/1 :: (rabbit_types:binding_source()) -> boolean()). --spec(remove_for_source/1 :: (rabbit_types:binding_source()) -> bindings()). --spec(remove_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(remove_transient_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(process_deletions/2 :: (deletions(), boolean()) -> 'ok'). --spec(combine_deletions/2 :: (deletions(), deletions()) -> deletions()). --spec(add_deletion/3 :: (rabbit_exchange:name(), - {'undefined' | rabbit_types:exchange(), - 'deleted' | 'not_deleted', - bindings()}, deletions()) -> deletions()). --spec(new_deletions/0 :: () -> deletions()). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]). - -recover() -> - rabbit_misc:table_fold( - fun (Route = #route{binding = B}, Acc) -> - {_, ReverseRoute} = route_with_reverse(Route), - ok = mnesia:write(rabbit_route, Route, write), - ok = mnesia:write(rabbit_reverse_route, ReverseRoute, write), - [B | Acc] - end, [], rabbit_durable_route). - -exists(Binding) -> - binding_action( - Binding, fun (_Src, _Dst, B) -> - rabbit_misc:const(mnesia:read({rabbit_route, B}) /= []) - end). - -add(Binding) -> add(Binding, fun (_Src, _Dst) -> ok end). - -remove(Binding) -> remove(Binding, fun (_Src, _Dst) -> ok end). - -add(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - %% this argument is used to check queue exclusivity; - %% in general, we want to fail on that in preference to - %% anything else - case InnerFun(Src, Dst) of - ok -> - case mnesia:read({rabbit_route, B}) of - [] -> ok = sync_binding(B, all_durable([Src, Dst]), - fun mnesia:write/3), - fun (Tx) -> - ok = rabbit_exchange:callback( - Src, add_binding, [Tx, Src, B]), - rabbit_event:notify_if( - not Tx, binding_created, info(B)) - end; - [_] -> fun rabbit_misc:const_ok/1 - end; - {error, _} = Err -> - rabbit_misc:const(Err) - end - end). - -remove(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - Result = - case mnesia:match_object(rabbit_route, #route{binding = B}, - write) of - [] -> - {error, binding_not_found}; - [_] -> - case InnerFun(Src, Dst) of - ok -> - ok = sync_binding(B, all_durable([Src, Dst]), - fun mnesia:delete_object/3), - {ok, maybe_auto_delete(B#binding.source, - [B], new_deletions())}; - {error, _} = E -> - E - end - end, - case Result of - {error, _} = Err -> - rabbit_misc:const(Err); - {ok, Deletions} -> - fun (Tx) -> ok = process_deletions(Deletions, Tx) end - end - end). - -list(VHostPath) -> - VHostResource = rabbit_misc:r(VHostPath, '_'), - Route = #route{binding = #binding{source = VHostResource, - destination = VHostResource, - _ = '_'}, - _ = '_'}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_source(SrcName) -> - Route = #route{binding = #binding{source = SrcName, _ = '_'}}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_destination(DstName) -> - Route = #route{binding = #binding{destination = DstName, _ = '_'}}, - [reverse_binding(B) || #reverse_route{reverse_binding = B} <- - mnesia:dirty_match_object(rabbit_reverse_route, - reverse_route(Route))]. - -list_for_source_and_destination(SrcName, DstName) -> - Route = #route{binding = #binding{source = SrcName, - destination = DstName, - _ = '_'}}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, B) -> [{Item, i(Item, B)} || Item <- Items]. - -i(source_name, #binding{source = SrcName}) -> SrcName#resource.name; -i(source_kind, #binding{source = SrcName}) -> SrcName#resource.kind; -i(destination_name, #binding{destination = DstName}) -> DstName#resource.name; -i(destination_kind, #binding{destination = DstName}) -> DstName#resource.kind; -i(routing_key, #binding{key = RoutingKey}) -> RoutingKey; -i(arguments, #binding{args = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(B = #binding{}) -> infos(?INFO_KEYS, B). - -info(B = #binding{}, Items) -> infos(Items, B). - -info_all(VHostPath) -> map(VHostPath, fun (B) -> info(B) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (B) -> info(B, Items) end). - -has_for_source(SrcName) -> - Match = #route{binding = #binding{source = SrcName, _ = '_'}}, - %% we need to check for durable routes here too in case a bunch of - %% routes to durable queues have been removed temporarily as a - %% result of a node failure - contains(rabbit_route, Match) orelse contains(rabbit_durable_route, Match). - -remove_for_source(SrcName) -> - [begin - ok = mnesia:delete_object(rabbit_reverse_route, - reverse_route(Route), write), - ok = delete_forward_routes(Route), - Route#route.binding - end || Route <- mnesia:match_object( - rabbit_route, - #route{binding = #binding{source = SrcName, - _ = '_'}}, - write)]. - -remove_for_destination(DstName) -> - remove_for_destination(DstName, fun delete_forward_routes/1). - -remove_transient_for_destination(DstName) -> - remove_for_destination(DstName, fun delete_transient_forward_routes/1). - -%%---------------------------------------------------------------------------- - -all_durable(Resources) -> - lists:all(fun (#exchange{durable = D}) -> D; - (#amqqueue{durable = D}) -> D - end, Resources). - -binding_action(Binding = #binding{source = SrcName, - destination = DstName, - args = Arguments}, Fun) -> - call_with_source_and_destination( - SrcName, DstName, - fun (Src, Dst) -> - SortedArgs = rabbit_misc:sort_field_table(Arguments), - Fun(Src, Dst, Binding#binding{args = SortedArgs}) - end). - -sync_binding(Binding, Durable, Fun) -> - ok = case Durable of - true -> Fun(rabbit_durable_route, - #route{binding = Binding}, write); - false -> ok - end, - {Route, ReverseRoute} = route_with_reverse(Binding), - ok = Fun(rabbit_route, Route, write), - ok = Fun(rabbit_reverse_route, ReverseRoute, write), - ok. - -call_with_source_and_destination(SrcName, DstName, Fun) -> - SrcTable = table_for_resource(SrcName), - DstTable = table_for_resource(DstName), - ErrFun = fun (Err) -> rabbit_misc:const(Err) end, - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case {mnesia:read({SrcTable, SrcName}), - mnesia:read({DstTable, DstName})} of - {[Src], [Dst]} -> Fun(Src, Dst); - {[], [_] } -> ErrFun({error, source_not_found}); - {[_], [] } -> ErrFun({error, destination_not_found}); - {[], [] } -> ErrFun({error, - source_and_destination_not_found}) - end - end). - -table_for_resource(#resource{kind = exchange}) -> rabbit_exchange; -table_for_resource(#resource{kind = queue}) -> rabbit_queue. - -contains(Table, MatchHead) -> - continue(mnesia:select(Table, [{MatchHead, [], ['$_']}], 1, read)). - -continue('$end_of_table') -> false; -continue({[_|_], _}) -> true; -continue({[], Continuation}) -> continue(mnesia:select(Continuation)). - -remove_for_destination(DstName, FwdDeleteFun) -> - Bindings = - [begin - Route = reverse_route(ReverseRoute), - ok = FwdDeleteFun(Route), - ok = mnesia:delete_object(rabbit_reverse_route, - ReverseRoute, write), - Route#route.binding - end || ReverseRoute - <- mnesia:match_object( - rabbit_reverse_route, - reverse_route(#route{ - binding = #binding{ - destination = DstName, - _ = '_'}}), - write)], - group_bindings_fold(fun maybe_auto_delete/3, new_deletions(), - lists:keysort(#binding.source, Bindings)). - -%% Requires that its input binding list is sorted in exchange-name -%% order, so that the grouping of bindings (for passing to -%% group_bindings_and_auto_delete1) works properly. -group_bindings_fold(_Fun, Acc, []) -> - Acc; -group_bindings_fold(Fun, Acc, [B = #binding{source = SrcName} | Bs]) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B]). - -group_bindings_fold( - Fun, SrcName, Acc, [B = #binding{source = SrcName} | Bs], Bindings) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B | Bindings]); -group_bindings_fold(Fun, SrcName, Acc, Removed, Bindings) -> - %% Either Removed is [], or its head has a non-matching SrcName. - group_bindings_fold(Fun, Fun(SrcName, Bindings, Acc), Removed). - -maybe_auto_delete(XName, Bindings, Deletions) -> - {Entry, Deletions1} = - case mnesia:read({rabbit_exchange, XName}) of - [] -> {{undefined, not_deleted, Bindings}, Deletions}; - [X] -> case rabbit_exchange:maybe_auto_delete(X) of - not_deleted -> - {{X, not_deleted, Bindings}, Deletions}; - {deleted, Deletions2} -> - {{X, deleted, Bindings}, - combine_deletions(Deletions, Deletions2)} - end - end, - add_deletion(XName, Entry, Deletions1). - -delete_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write), - ok = mnesia:delete_object(rabbit_durable_route, Route, write). - -delete_transient_forward_routes(Route) -> - ok = mnesia:delete_object(rabbit_route, Route, write). - -route_with_reverse(#route{binding = Binding}) -> - route_with_reverse(Binding); -route_with_reverse(Binding = #binding{}) -> - Route = #route{binding = Binding}, - {Route, reverse_route(Route)}. - -reverse_route(#route{binding = Binding}) -> - #reverse_route{reverse_binding = reverse_binding(Binding)}; - -reverse_route(#reverse_route{reverse_binding = Binding}) -> - #route{binding = reverse_binding(Binding)}. - -reverse_binding(#reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}; - -reverse_binding(#binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}. - -%% ---------------------------------------------------------------------------- -%% Binding / exchange deletion abstraction API -%% ---------------------------------------------------------------------------- - -anything_but( NotThis, NotThis, NotThis) -> NotThis; -anything_but( NotThis, NotThis, This) -> This; -anything_but( NotThis, This, NotThis) -> This; -anything_but(_NotThis, This, This) -> This. - -new_deletions() -> dict:new(). - -add_deletion(XName, Entry, Deletions) -> - dict:update(XName, fun (Entry1) -> merge_entry(Entry1, Entry) end, - Entry, Deletions). - -combine_deletions(Deletions1, Deletions2) -> - dict:merge(fun (_XName, Entry1, Entry2) -> merge_entry(Entry1, Entry2) end, - Deletions1, Deletions2). - -merge_entry({X1, Deleted1, Bindings1}, {X2, Deleted2, Bindings2}) -> - {anything_but(undefined, X1, X2), - anything_but(not_deleted, Deleted1, Deleted2), - [Bindings1 | Bindings2]}. - -process_deletions(Deletions, Tx) -> - dict:fold( - fun (_XName, {X, Deleted, Bindings}, ok) -> - FlatBindings = lists:flatten(Bindings), - [rabbit_event:notify_if(not Tx, binding_deleted, info(B)) || - B <- FlatBindings], - case Deleted of - not_deleted -> - rabbit_exchange:callback(X, remove_bindings, - [Tx, X, FlatBindings]); - deleted -> - rabbit_event:notify_if(not Tx, exchange_deleted, - [{name, X#exchange.name}]), - rabbit_exchange:callback(X, delete, [Tx, X, FlatBindings]) - end - end, ok, Deletions). diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl deleted file mode 100644 index 5099bf3f..00000000 --- a/src/rabbit_channel.erl +++ /dev/null @@ -1,1496 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/10, do/2, do/3, flush/1, shutdown/1]). --export([send_command/2, deliver/4, flushed/2, confirm/2]). --export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). --export([emit_stats/1, ready_for_close/1]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2]). - --record(ch, {state, protocol, channel, reader_pid, writer_pid, conn_pid, - limiter_pid, start_limiter_fun, transaction_id, tx_participants, - next_tag, uncommitted_ack_q, unacked_message_q, - user, virtual_host, most_recently_declared_queue, - consumer_mapping, blocking, consumer_monitors, queue_collector_pid, - stats_timer, confirm_enabled, publish_seqno, unconfirmed_mq, - unconfirmed_qm, confirmed, capabilities}). - --define(MAX_PERMISSION_CACHE_SIZE, 12). - --define(STATISTICS_KEYS, - [pid, - transactional, - confirm, - consumer_count, - messages_unacknowledged, - messages_unconfirmed, - acks_uncommitted, - prefetch_count, - client_flow_blocked]). - --define(CREATION_EVENT_KEYS, - [pid, - connection, - number, - user, - vhost]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([channel_number/0]). - --type(channel_number() :: non_neg_integer()). - --spec(start_link/10 :: - (channel_number(), pid(), pid(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid(), fun ((non_neg_integer()) -> rabbit_types:ok(pid()))) -> - rabbit_types:ok_pid_or_error()). --spec(do/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(do/3 :: (pid(), rabbit_framing:amqp_method_record(), - rabbit_types:maybe(rabbit_types:content())) -> 'ok'). --spec(flush/1 :: (pid()) -> 'ok'). --spec(shutdown/1 :: (pid()) -> 'ok'). --spec(send_command/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(deliver/4 :: - (pid(), rabbit_types:ctag(), boolean(), rabbit_amqqueue:qmsg()) - -> 'ok'). --spec(flushed/2 :: (pid(), pid()) -> 'ok'). --spec(confirm/2 ::(pid(), [non_neg_integer()]) -> 'ok'). --spec(list/0 :: () -> [pid()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(info_all/0 :: () -> [rabbit_types:infos()]). --spec(info_all/1 :: (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(ready_for_close/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun) -> - gen_server2:start_link( - ?MODULE, [Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, - VHost, Capabilities, CollectorPid, StartLimiterFun], []). - -do(Pid, Method) -> - do(Pid, Method, none). - -do(Pid, Method, Content) -> - gen_server2:cast(Pid, {method, Method, Content}). - -flush(Pid) -> - gen_server2:call(Pid, flush, infinity). - -shutdown(Pid) -> - gen_server2:cast(Pid, terminate). - -send_command(Pid, Msg) -> - gen_server2:cast(Pid, {command, Msg}). - -deliver(Pid, ConsumerTag, AckRequired, Msg) -> - gen_server2:cast(Pid, {deliver, ConsumerTag, AckRequired, Msg}). - -flushed(Pid, QPid) -> - gen_server2:cast(Pid, {flushed, QPid}). - -confirm(Pid, MsgSeqNos) -> - gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). - -list() -> - pg_local:get_members(rabbit_channels). - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server2:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server2:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all() -> - rabbit_misc:filter_exit_map(fun (C) -> info(C) end, list()). - -info_all(Items) -> - rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). - -emit_stats(Pid) -> - gen_server2:cast(Pid, emit_stats). - -ready_for_close(Pid) -> - gen_server2:cast(Pid, ready_for_close). - -%%--------------------------------------------------------------------------- - -init([Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun]) -> - ok = pg_local:join(rabbit_channels, self()), - StatsTimer = rabbit_event:init_stats_timer(), - State = #ch{state = starting, - protocol = Protocol, - channel = Channel, - reader_pid = ReaderPid, - writer_pid = WriterPid, - conn_pid = ConnPid, - limiter_pid = undefined, - start_limiter_fun = StartLimiterFun, - transaction_id = none, - tx_participants = sets:new(), - next_tag = 1, - uncommitted_ack_q = queue:new(), - unacked_message_q = queue:new(), - user = User, - virtual_host = VHost, - most_recently_declared_queue = <<>>, - consumer_mapping = dict:new(), - blocking = dict:new(), - consumer_monitors = dict:new(), - queue_collector_pid = CollectorPid, - stats_timer = StatsTimer, - confirm_enabled = false, - publish_seqno = 1, - unconfirmed_mq = gb_trees:empty(), - unconfirmed_qm = gb_trees:empty(), - confirmed = [], - capabilities = Capabilities}, - rabbit_event:notify(channel_created, infos(?CREATION_EVENT_KEYS, State)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State) end), - {ok, State, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - emit_stats -> 7; - {confirm, _MsgSeqNos, _QPid} -> 5; - _ -> 0 - end. - -handle_call(flush, _From, State) -> - reply(ok, State); - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(_Request, _From, State) -> - noreply(State). - -handle_cast({method, Method, Content}, State) -> - try handle_method(Method, Content, State) of - {reply, Reply, NewState} -> - ok = rabbit_writer:send_command(NewState#ch.writer_pid, Reply), - noreply(NewState); - {noreply, NewState} -> - noreply(NewState); - stop -> - {stop, normal, State} - catch - exit:Reason = #amqp_error{} -> - MethodName = rabbit_misc:method_record_type(Method), - send_exception(Reason#amqp_error{method = MethodName}, State); - _:Reason -> - {stop, {Reason, erlang:get_stacktrace()}, State} - end; - -handle_cast({flushed, QPid}, State) -> - {noreply, queue_blocked(QPid, State), hibernate}; - -handle_cast(ready_for_close, State = #ch{state = closing, - writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command_sync(WriterPid, #'channel.close_ok'{}), - {stop, normal, State}; - -handle_cast(terminate, State) -> - {stop, normal, State}; - -handle_cast({command, #'basic.consume_ok'{consumer_tag = ConsumerTag} = Msg}, - State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(monitor_consumer(ConsumerTag, State)); - -handle_cast({command, Msg}, State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(State); - -handle_cast({deliver, ConsumerTag, AckRequired, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}}}, - State = #ch{writer_pid = WriterPid, - next_tag = DeliveryTag}) -> - State1 = lock_message(AckRequired, - ack_record(DeliveryTag, ConsumerTag, Msg), - State), - - M = #'basic.deliver'{consumer_tag = ConsumerTag, - delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - rabbit_writer:send_command_and_notify(WriterPid, QPid, self(), M, Content), - - maybe_incr_stats([{QPid, 1}], - case AckRequired of - true -> deliver; - false -> deliver_no_ack - end, State), - noreply(State1#ch{next_tag = DeliveryTag + 1}); - -handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> - internal_emit_stats(State), - noreply([ensure_stats_timer], - State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}); - -handle_cast({confirm, MsgSeqNos, From}, State) -> - State1 = #ch{confirmed = C} = confirm(MsgSeqNos, From, State), - noreply([send_confirms], State1, case C of [] -> hibernate; _ -> 0 end). - -handle_info(timeout, State) -> - noreply(State); - -handle_info({'DOWN', MRef, process, QPid, Reason}, - State = #ch{consumer_monitors = ConsumerMonitors}) -> - noreply( - case dict:find(MRef, ConsumerMonitors) of - error -> - handle_publishing_queue_down(QPid, Reason, State); - {ok, ConsumerTag} -> - handle_consuming_queue_down(MRef, ConsumerTag, State) - end). - -handle_pre_hibernate(State = #ch{stats_timer = StatsTimer}) -> - ok = clear_permission_cache(), - rabbit_event:if_enabled(StatsTimer, - fun () -> - internal_emit_stats( - State, [{idle_since, now()}]) - end), - StatsTimer1 = rabbit_event:stop_stats_timer(StatsTimer), - {hibernate, State#ch{stats_timer = StatsTimer1}}. - -terminate(Reason, State) -> - {Res, _State1} = rollback_and_notify(State), - case Reason of - normal -> ok = Res; - shutdown -> ok = Res; - {shutdown, _Term} -> ok = Res; - _ -> ok - end, - pg_local:leave(rabbit_channels, self()), - rabbit_event:notify(channel_closed, [{pid, self()}]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%--------------------------------------------------------------------------- - -reply(Reply, NewState) -> reply(Reply, [], NewState). - -reply(Reply, Mask, NewState) -> reply(Reply, Mask, NewState, hibernate). - -reply(Reply, Mask, NewState, Timeout) -> - {reply, Reply, next_state(Mask, NewState), Timeout}. - -noreply(NewState) -> noreply([], NewState). - -noreply(Mask, NewState) -> noreply(Mask, NewState, hibernate). - -noreply(Mask, NewState, Timeout) -> - {noreply, next_state(Mask, NewState), Timeout}. - -next_state(Mask, State) -> - lists:foldl(fun (ensure_stats_timer, State1) -> ensure_stats_timer(State1); - (send_confirms, State1) -> send_confirms(State1) - end, State, [ensure_stats_timer, send_confirms] -- Mask). - -ensure_stats_timer(State = #ch{stats_timer = StatsTimer}) -> - ChPid = self(), - State#ch{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(ChPid) end)}. - -return_ok(State, true, _Msg) -> {noreply, State}; -return_ok(State, false, Msg) -> {reply, Msg, State}. - -ok_msg(true, _Msg) -> undefined; -ok_msg(false, Msg) -> Msg. - -send_exception(Reason, State = #ch{protocol = Protocol, - channel = Channel, - writer_pid = WriterPid, - reader_pid = ReaderPid, - conn_pid = ConnPid}) -> - {CloseChannel, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - rabbit_log:error("connection ~p, channel ~p - error:~n~p~n", - [ConnPid, Channel, Reason]), - %% something bad's happened: rollback_and_notify may not be 'ok' - {_Result, State1} = rollback_and_notify(State), - case CloseChannel of - Channel -> ok = rabbit_writer:send_command(WriterPid, CloseMethod), - {noreply, State1}; - _ -> ReaderPid ! {channel_exit, Channel, Reason}, - {stop, normal, State1} - end. - -return_queue_declare_ok(#resource{name = ActualName}, - NoWait, MessageCount, ConsumerCount, State) -> - return_ok(State#ch{most_recently_declared_queue = ActualName}, NoWait, - #'queue.declare_ok'{queue = ActualName, - message_count = MessageCount, - consumer_count = ConsumerCount}). - -check_resource_access(User, Resource, Perm) -> - V = {Resource, Perm}, - Cache = case get(permission_cache) of - undefined -> []; - Other -> Other - end, - CacheTail = - case lists:member(V, Cache) of - true -> lists:delete(V, Cache); - false -> ok = rabbit_access_control:check_resource_access( - User, Resource, Perm), - lists:sublist(Cache, ?MAX_PERMISSION_CACHE_SIZE - 1) - end, - put(permission_cache, [V | CacheTail]), - ok. - -clear_permission_cache() -> - erase(permission_cache), - ok. - -check_configure_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, configure). - -check_write_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, write). - -check_read_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, read). - -check_user_id_header(#'P_basic'{user_id = undefined}, _) -> - ok; -check_user_id_header(#'P_basic'{user_id = Username}, - #ch{user = #user{username = Username}}) -> - ok; -check_user_id_header(#'P_basic'{user_id = Claimed}, - #ch{user = #user{username = Actual}}) -> - rabbit_misc:protocol_error( - precondition_failed, "user_id property set to '~s' but " - "authenticated user was '~s'", [Claimed, Actual]). - -check_internal_exchange(#exchange{name = Name, internal = true}) -> - rabbit_misc:protocol_error(access_refused, - "cannot publish to internal ~s", - [rabbit_misc:rs(Name)]); -check_internal_exchange(_) -> - ok. - -expand_queue_name_shortcut(<<>>, #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_queue_name_shortcut(<<>>, #ch{virtual_host = VHostPath, - most_recently_declared_queue = MRDQ}) -> - rabbit_misc:r(VHostPath, queue, MRDQ); -expand_queue_name_shortcut(QueueNameBin, #ch{virtual_host = VHostPath}) -> - rabbit_misc:r(VHostPath, queue, QueueNameBin). - -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = MRDQ}) -> - MRDQ; -expand_routing_key_shortcut(_QueueNameBin, RoutingKey, _State) -> - RoutingKey. - -expand_binding(queue, DestinationNameBin, RoutingKey, State) -> - {expand_queue_name_shortcut(DestinationNameBin, State), - expand_routing_key_shortcut(DestinationNameBin, RoutingKey, State)}; -expand_binding(exchange, DestinationNameBin, RoutingKey, State) -> - {rabbit_misc:r(State#ch.virtual_host, exchange, DestinationNameBin), - RoutingKey}. - -check_not_default_exchange(#resource{kind = exchange, name = <<"">>}) -> - rabbit_misc:protocol_error( - access_refused, "operation not permitted on the default exchange", []); -check_not_default_exchange(_) -> - ok. - -%% check that an exchange/queue name does not contain the reserved -%% "amq." prefix. -%% -%% One, quite reasonable, interpretation of the spec, taken by the -%% QPid M1 Java client, is that the exclusion of "amq." prefixed names -%% only applies on actual creation, and not in the cases where the -%% entity already exists. This is how we use this function in the code -%% below. However, AMQP JIRA 123 changes that in 0-10, and possibly -%% 0-9SP1, making it illegal to attempt to declare an exchange/queue -%% with an amq.* name when passive=false. So this will need -%% revisiting. -%% -%% TODO: enforce other constraints on name. See AMQP JIRA 69. -check_name(Kind, NameBin = <<"amq.", _/binary>>) -> - rabbit_misc:protocol_error( - access_refused, - "~s name '~s' contains reserved prefix 'amq.*'",[Kind, NameBin]); -check_name(_Kind, NameBin) -> - NameBin. - -queue_blocked(QPid, State = #ch{blocking = Blocking}) -> - case dict:find(QPid, Blocking) of - error -> State; - {ok, MRef} -> true = erlang:demonitor(MRef), - Blocking1 = dict:erase(QPid, Blocking), - ok = case dict:size(Blocking1) of - 0 -> rabbit_writer:send_command( - State#ch.writer_pid, - #'channel.flow_ok'{active = false}); - _ -> ok - end, - State#ch{blocking = Blocking1} - end. - -record_confirm(undefined, _, State) -> - State; -record_confirm(MsgSeqNo, XName, State) -> - record_confirms([{MsgSeqNo, XName}], State). - -record_confirms([], State) -> - State; -record_confirms(MXs, State = #ch{confirmed = C}) -> - State#ch{confirmed = [MXs | C]}. - -confirm([], _QPid, State) -> - State; -confirm(MsgSeqNos, QPid, State) -> - {MXs, State1} = process_confirms(MsgSeqNos, QPid, false, State), - record_confirms(MXs, State1). - -process_confirms(MsgSeqNos, QPid, Nack, State = #ch{unconfirmed_mq = UMQ, - unconfirmed_qm = UQM}) -> - {MXs, UMQ1, UQM1} = - lists:foldl( - fun(MsgSeqNo, {_MXs, UMQ0, _UQM} = Acc) -> - case gb_trees:lookup(MsgSeqNo, UMQ0) of - {value, XQ} -> remove_unconfirmed(MsgSeqNo, QPid, XQ, - Acc, Nack, State); - none -> Acc - end - end, {[], UMQ, UQM}, MsgSeqNos), - {MXs, State#ch{unconfirmed_mq = UMQ1, unconfirmed_qm = UQM1}}. - -remove_unconfirmed(MsgSeqNo, QPid, {XName, Qs}, {MXs, UMQ, UQM}, Nack, - State) -> - %% these confirms will be emitted even when a queue dies, but that - %% should be fine, since the queue stats get erased immediately - maybe_incr_stats([{{QPid, XName}, 1}], confirm, State), - UQM1 = case gb_trees:lookup(QPid, UQM) of - {value, MsgSeqNos} -> - MsgSeqNos1 = gb_sets:delete(MsgSeqNo, MsgSeqNos), - case gb_sets:is_empty(MsgSeqNos1) of - true -> gb_trees:delete(QPid, UQM); - false -> gb_trees:update(QPid, MsgSeqNos1, UQM) - end; - none -> - UQM - end, - Qs1 = gb_sets:del_element(QPid, Qs), - %% If QPid somehow died initiating a nack, clear the message from - %% internal data-structures. Also, cleanup empty entries. - case (Nack orelse gb_sets:is_empty(Qs1)) of - true -> - {[{MsgSeqNo, XName} | MXs], gb_trees:delete(MsgSeqNo, UMQ), UQM1}; - false -> - {MXs, gb_trees:update(MsgSeqNo, {XName, Qs1}, UMQ), UQM1} - end. - -handle_method(#'channel.open'{}, _, State = #ch{state = starting}) -> - {reply, #'channel.open_ok'{}, State#ch{state = running}}; - -handle_method(#'channel.open'{}, _, _State) -> - rabbit_misc:protocol_error( - command_invalid, "second 'channel.open' seen", []); - -handle_method(_Method, _, #ch{state = starting}) -> - rabbit_misc:protocol_error(channel_error, "expected 'channel.open'", []); - -handle_method(#'channel.close_ok'{}, _, #ch{state = closing}) -> - stop; - -handle_method(#'channel.close'{}, _, State = #ch{state = closing}) -> - {reply, #'channel.close_ok'{}, State}; - -handle_method(_Method, _, State = #ch{state = closing}) -> - {noreply, State}; - -handle_method(#'channel.close'{}, _, State = #ch{reader_pid = ReaderPid}) -> - {ok, State1} = rollback_and_notify(State), - ReaderPid ! {channel_closing, self()}, - {noreply, State1}; - -handle_method(#'access.request'{},_, State) -> - {reply, #'access.request_ok'{ticket = 1}, State}; - -handle_method(#'basic.publish'{exchange = ExchangeNameBin, - routing_key = RoutingKey, - mandatory = Mandatory, - immediate = Immediate}, - Content, State = #ch{virtual_host = VHostPath, - transaction_id = TxnKey, - confirm_enabled = ConfirmEnabled}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_write_permitted(ExchangeName, State), - Exchange = rabbit_exchange:lookup_or_die(ExchangeName), - check_internal_exchange(Exchange), - %% We decode the content's properties here because we're almost - %% certain to want to look at delivery-mode and priority. - DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), - check_user_id_header(DecodedContent#content.properties, State), - {MsgSeqNo, State1} = - case ConfirmEnabled of - false -> {undefined, State}; - true -> SeqNo = State#ch.publish_seqno, - {SeqNo, State#ch{publish_seqno = SeqNo + 1}} - end, - case rabbit_basic:message(ExchangeName, RoutingKey, DecodedContent) of - {ok, Message} -> - {RoutingRes, DeliveredQPids} = - rabbit_exchange:publish( - Exchange, - rabbit_basic:delivery(Mandatory, Immediate, TxnKey, Message, - MsgSeqNo)), - State2 = process_routing_result(RoutingRes, DeliveredQPids, - ExchangeName, MsgSeqNo, Message, - State1), - maybe_incr_stats([{ExchangeName, 1} | - [{{QPid, ExchangeName}, 1} || - QPid <- DeliveredQPids]], publish, State2), - {noreply, case TxnKey of - none -> State2; - _ -> add_tx_participants(DeliveredQPids, State2) - end}; - {error, Reason} -> - rabbit_misc:protocol_error(precondition_failed, - "invalid message: ~p", [Reason]) - end; - -handle_method(#'basic.nack'{delivery_tag = DeliveryTag, - multiple = Multiple, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, Multiple, State); - -handle_method(#'basic.ack'{delivery_tag = DeliveryTag, - multiple = Multiple}, - _, State = #ch{transaction_id = TxnKey, - unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - QIncs = ack(TxnKey, Acked), - Participants = [QPid || {QPid, _} <- QIncs], - maybe_incr_stats(QIncs, ack, State), - {noreply, case TxnKey of - none -> ok = notify_limiter(State#ch.limiter_pid, Acked), - State#ch{unacked_message_q = Remaining}; - _ -> NewUAQ = queue:join(State#ch.uncommitted_ack_q, - Acked), - add_tx_participants( - Participants, - State#ch{unacked_message_q = Remaining, - uncommitted_ack_q = NewUAQ}) - end}; - -handle_method(#'basic.get'{queue = QueueNameBin, - no_ack = NoAck}, - _, State = #ch{writer_pid = WriterPid, - conn_pid = ConnPid, - next_tag = DeliveryTag}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> rabbit_amqqueue:basic_get(Q, self(), NoAck) end) of - {ok, MessageCount, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}}} -> - State1 = lock_message(not(NoAck), - ack_record(DeliveryTag, none, Msg), - State), - maybe_incr_stats([{QPid, 1}], - case NoAck of - true -> get_no_ack; - false -> get - end, State), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.get_ok'{delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey, - message_count = MessageCount}, - Content), - {noreply, State1#ch{next_tag = DeliveryTag + 1}}; - empty -> - {reply, #'basic.get_empty'{}, State} - end; - -handle_method(#'basic.consume'{queue = QueueNameBin, - consumer_tag = ConsumerTag, - no_local = _, % FIXME: implement - no_ack = NoAck, - exclusive = ExclusiveConsume, - nowait = NoWait}, - _, State = #ch{conn_pid = ConnPid, - limiter_pid = LimiterPid, - consumer_mapping = ConsumerMapping}) -> - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - ActualConsumerTag = - case ConsumerTag of - <<>> -> rabbit_guid:binstring_guid("amq.ctag"); - Other -> Other - end, - - %% We get the queue process to send the consume_ok on our - %% behalf. This is for symmetry with basic.cancel - see - %% the comment in that method for why. - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> - {rabbit_amqqueue:basic_consume( - Q, NoAck, self(), LimiterPid, - ActualConsumerTag, ExclusiveConsume, - ok_msg(NoWait, #'basic.consume_ok'{ - consumer_tag = ActualConsumerTag})), - Q} - end) of - {ok, Q} -> - State1 = State#ch{consumer_mapping = - dict:store(ActualConsumerTag, - {Q, undefined}, - ConsumerMapping)}, - {noreply, - case NoWait of - true -> monitor_consumer(ActualConsumerTag, State1); - false -> State1 - end}; - {{error, exclusive_consume_unavailable}, _Q} -> - rabbit_misc:protocol_error( - access_refused, "~s in exclusive use", - [rabbit_misc:rs(QueueName)]) - end; - {ok, _} -> - %% Attempted reuse of consumer tag. - rabbit_misc:protocol_error( - not_allowed, "attempt to reuse consumer tag '~s'", [ConsumerTag]) - end; - -handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, - nowait = NoWait}, - _, State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors}) -> - OkMsg = #'basic.cancel_ok'{consumer_tag = ConsumerTag}, - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - %% Spec requires we ignore this situation. - return_ok(State, NoWait, OkMsg); - {ok, {Q, MRef}} -> - ConsumerMonitors1 = - case MRef of - undefined -> ConsumerMonitors; - _ -> true = erlang:demonitor(MRef), - dict:erase(MRef, ConsumerMonitors) - end, - NewState = State#ch{consumer_mapping = dict:erase(ConsumerTag, - ConsumerMapping), - consumer_monitors = ConsumerMonitors1}, - %% In order to ensure that no more messages are sent to - %% the consumer after the cancel_ok has been sent, we get - %% the queue process to send the cancel_ok on our - %% behalf. If we were sending the cancel_ok ourselves it - %% might overtake a message sent previously by the queue. - case rabbit_misc:with_exit_handler( - fun () -> {error, not_found} end, - fun () -> - rabbit_amqqueue:basic_cancel( - Q, self(), ConsumerTag, - ok_msg(NoWait, #'basic.cancel_ok'{ - consumer_tag = ConsumerTag})) - end) of - ok -> - {noreply, NewState}; - {error, not_found} -> - %% Spec requires we ignore this situation. - return_ok(NewState, NoWait, OkMsg) - end - end; - -handle_method(#'basic.qos'{global = true}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "global=true", []); - -handle_method(#'basic.qos'{prefetch_size = Size}, _, _State) when Size /= 0 -> - rabbit_misc:protocol_error(not_implemented, - "prefetch_size!=0 (~w)", [Size]); - -handle_method(#'basic.qos'{prefetch_count = PrefetchCount}, - _, State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case {LimiterPid, PrefetchCount} of - {undefined, 0} -> undefined; - {undefined, _} -> start_limiter(State); - {_, _} -> LimiterPid - end, - LimiterPid2 = case rabbit_limiter:limit(LimiterPid1, PrefetchCount) of - ok -> LimiterPid1; - stopped -> unlimit_queues(State) - end, - {reply, #'basic.qos_ok'{}, State#ch{limiter_pid = LimiterPid2}}; - -handle_method(#'basic.recover_async'{requeue = true}, - _, State = #ch{unacked_message_q = UAMQ, - limiter_pid = LimiterPid}) -> - OkFun = fun () -> ok end, - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - %% The Qpid python test suite incorrectly assumes - %% that messages will be requeued in their original - %% order. To keep it happy we reverse the id list - %% since we are given them in reverse order. - rabbit_misc:with_exit_handler( - OkFun, fun () -> - rabbit_amqqueue:requeue( - QPid, lists:reverse(MsgIds), self()) - end) - end, ok, UAMQ), - ok = notify_limiter(LimiterPid, UAMQ), - %% No answer required - basic.recover is the newer, synchronous - %% variant of this method - {noreply, State#ch{unacked_message_q = queue:new()}}; - -handle_method(#'basic.recover_async'{requeue = false}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "requeue=false", []); - -handle_method(#'basic.recover'{requeue = Requeue}, Content, State) -> - {noreply, State2 = #ch{writer_pid = WriterPid}} = - handle_method(#'basic.recover_async'{requeue = Requeue}, - Content, - State), - ok = rabbit_writer:send_command(WriterPid, #'basic.recover_ok'{}), - {noreply, State2}; - -handle_method(#'basic.reject'{delivery_tag = DeliveryTag, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, false, State); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - type = TypeNameBin, - passive = false, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - nowait = NoWait, - arguments = Args}, - _, State = #ch{virtual_host = VHostPath}) -> - CheckedType = rabbit_exchange:check_type(TypeNameBin), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - X = case rabbit_exchange:lookup(ExchangeName) of - {ok, FoundX} -> FoundX; - {error, not_found} -> - check_name('exchange', ExchangeNameBin), - case rabbit_misc:r_arg(VHostPath, exchange, Args, - <<"alternate-exchange">>) of - undefined -> ok; - AName -> check_read_permitted(ExchangeName, State), - check_write_permitted(AName, State), - ok - end, - rabbit_exchange:declare(ExchangeName, - CheckedType, - Durable, - AutoDelete, - Internal, - Args) - end, - ok = rabbit_exchange:assert_equivalence(X, CheckedType, Durable, - AutoDelete, Internal, Args), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_configure_permitted(ExchangeName, State), - check_not_default_exchange(ExchangeName), - _ = rabbit_exchange:lookup_or_die(ExchangeName), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.delete'{exchange = ExchangeNameBin, - if_unused = IfUnused, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - case rabbit_exchange:delete(ExchangeName, IfUnused) of - {error, not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(ExchangeName)]); - ok -> - return_ok(State, NoWait, #'exchange.delete_ok'{}) - end; - -handle_method(#'exchange.bind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.bind_ok'{}, NoWait, State); - -handle_method(#'exchange.unbind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.unbind_ok'{}, NoWait, State); - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = false, - durable = Durable, - exclusive = ExclusiveDeclare, - auto_delete = AutoDelete, - nowait = NoWait, - arguments = Args} = Declare, - _, State = #ch{virtual_host = VHostPath, - conn_pid = ConnPid, - queue_collector_pid = CollectorPid}) -> - Owner = case ExclusiveDeclare of - true -> ConnPid; - false -> none - end, - ActualNameBin = case QueueNameBin of - <<>> -> rabbit_guid:binstring_guid("amq.gen"); - Other -> check_name('queue', Other) - end, - QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> ok = rabbit_amqqueue:assert_equivalence( - Q, Durable, AutoDelete, Args, Owner), - rabbit_amqqueue:stat(Q) - end) of - {ok, MessageCount, ConsumerCount} -> - return_queue_declare_ok(QueueName, NoWait, MessageCount, - ConsumerCount, State); - {error, not_found} -> - case rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, - Args, Owner) of - {new, Q = #amqqueue{}} -> - %% We need to notify the reader within the channel - %% process so that we can be sure there are no - %% outstanding exclusive queues being declared as - %% the connection shuts down. - ok = case Owner of - none -> ok; - _ -> rabbit_queue_collector:register( - CollectorPid, Q) - end, - return_queue_declare_ok(QueueName, NoWait, 0, 0, State); - {existing, _Q} -> - %% must have been created between the stat and the - %% declare. Loop around again. - handle_method(Declare, none, State) - end - end; - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath, - conn_pid = ConnPid}) -> - QueueName = rabbit_misc:r(VHostPath, queue, QueueNameBin), - check_configure_permitted(QueueName, State), - {{ok, MessageCount, ConsumerCount}, #amqqueue{} = Q} = - rabbit_amqqueue:with_or_die( - QueueName, fun (Q) -> {rabbit_amqqueue:stat(Q), Q} end), - ok = rabbit_amqqueue:check_exclusive_access(Q, ConnPid), - return_queue_declare_ok(QueueName, NoWait, MessageCount, ConsumerCount, - State); - -handle_method(#'queue.delete'{queue = QueueNameBin, - if_unused = IfUnused, - if_empty = IfEmpty, - nowait = NoWait}, - _, State = #ch{conn_pid = ConnPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> rabbit_amqqueue:delete(Q, IfUnused, IfEmpty) end) of - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(QueueName)]); - {error, not_empty} -> - rabbit_misc:protocol_error( - precondition_failed, "~s not empty", [rabbit_misc:rs(QueueName)]); - {ok, PurgedMessageCount} -> - return_ok(State, NoWait, - #'queue.delete_ok'{message_count = PurgedMessageCount}) - end; - -handle_method(#'queue.bind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.bind_ok'{}, NoWait, State); - -handle_method(#'queue.unbind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.unbind_ok'{}, false, State); - -handle_method(#'queue.purge'{queue = QueueNameBin, - nowait = NoWait}, - _, State = #ch{conn_pid = ConnPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - {ok, PurgedMessageCount} = rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> rabbit_amqqueue:purge(Q) end), - return_ok(State, NoWait, - #'queue.purge_ok'{message_count = PurgedMessageCount}); - - -handle_method(#'tx.select'{}, _, #ch{confirm_enabled = true}) -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from confirm to tx mode", []); - -handle_method(#'tx.select'{}, _, State = #ch{transaction_id = none}) -> - {reply, #'tx.select_ok'{}, new_tx(State)}; - -handle_method(#'tx.select'{}, _, State) -> - {reply, #'tx.select_ok'{}, State}; - -handle_method(#'tx.commit'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.commit'{}, _, State) -> - {reply, #'tx.commit_ok'{}, internal_commit(State)}; - -handle_method(#'tx.rollback'{}, _, #ch{transaction_id = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.rollback'{}, _, State) -> - {reply, #'tx.rollback_ok'{}, internal_rollback(State)}; - -handle_method(#'confirm.select'{}, _, #ch{transaction_id = TxId}) - when TxId =/= none -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from tx to confirm mode", []); - -handle_method(#'confirm.select'{nowait = NoWait}, _, State) -> - return_ok(State#ch{confirm_enabled = true}, - NoWait, #'confirm.select_ok'{}); - -handle_method(#'channel.flow'{active = true}, _, - State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case rabbit_limiter:unblock(LimiterPid) of - ok -> LimiterPid; - stopped -> unlimit_queues(State) - end, - {reply, #'channel.flow_ok'{active = true}, - State#ch{limiter_pid = LimiterPid1}}; - -handle_method(#'channel.flow'{active = false}, _, - State = #ch{limiter_pid = LimiterPid, - consumer_mapping = Consumers}) -> - LimiterPid1 = case LimiterPid of - undefined -> start_limiter(State); - Other -> Other - end, - State1 = State#ch{limiter_pid = LimiterPid1}, - ok = rabbit_limiter:block(LimiterPid1), - case consumer_queues(Consumers) of - [] -> {reply, #'channel.flow_ok'{active = false}, State1}; - QPids -> Queues = [{QPid, erlang:monitor(process, QPid)} || - QPid <- QPids], - ok = rabbit_amqqueue:flush_all(QPids, self()), - {noreply, State1#ch{blocking = dict:from_list(Queues)}} - end; - -handle_method(_MethodRecord, _Content, _State) -> - rabbit_misc:protocol_error( - command_invalid, "unimplemented method", []). - -%%---------------------------------------------------------------------------- - -monitor_consumer(ConsumerTag, State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors, - capabilities = Capabilities}) -> - case rabbit_misc:table_lookup( - Capabilities, <<"consumer_cancel_notify">>) of - {bool, true} -> - {#amqqueue{pid = QPid} = Q, undefined} = - dict:fetch(ConsumerTag, ConsumerMapping), - MRef = erlang:monitor(process, QPid), - State#ch{consumer_mapping = - dict:store(ConsumerTag, {Q, MRef}, ConsumerMapping), - consumer_monitors = - dict:store(MRef, ConsumerTag, ConsumerMonitors)}; - _ -> - State - end. - -handle_publishing_queue_down(QPid, Reason, State = #ch{unconfirmed_qm = UQM}) -> - MsgSeqNos = case gb_trees:lookup(QPid, UQM) of - {value, MsgSet} -> gb_sets:to_list(MsgSet); - none -> [] - end, - %% We remove the MsgSeqNos from UQM before calling - %% process_confirms to prevent each MsgSeqNo being removed from - %% the set one by one which which would be inefficient - State1 = State#ch{unconfirmed_qm = gb_trees:delete_any(QPid, UQM)}, - {Nack, SendFun} = case Reason of - normal -> {false, fun record_confirms/2}; - _ -> {true, fun send_nacks/2} - end, - {MXs, State2} = process_confirms(MsgSeqNos, QPid, Nack, State1), - erase_queue_stats(QPid), - State3 = SendFun(MXs, State2), - queue_blocked(QPid, State3). - -handle_consuming_queue_down(MRef, ConsumerTag, - State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors, - writer_pid = WriterPid}) -> - ConsumerMapping1 = dict:erase(ConsumerTag, ConsumerMapping), - ConsumerMonitors1 = dict:erase(MRef, ConsumerMonitors), - Cancel = #'basic.cancel'{consumer_tag = ConsumerTag, - nowait = true}, - ok = rabbit_writer:send_command(WriterPid, Cancel), - State#ch{consumer_mapping = ConsumerMapping1, - consumer_monitors = ConsumerMonitors1}. - -binding_action(Fun, ExchangeNameBin, DestinationType, DestinationNameBin, - RoutingKey, Arguments, ReturnMethod, NoWait, - State = #ch{virtual_host = VHostPath, - conn_pid = ConnPid }) -> - %% FIXME: connection exception (!) on failure?? - %% (see rule named "failure" in spec-XML) - %% FIXME: don't allow binding to internal exchanges - - %% including the one named "" ! - {DestinationName, ActualRoutingKey} = - expand_binding(DestinationType, DestinationNameBin, RoutingKey, State), - check_write_permitted(DestinationName, State), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - [check_not_default_exchange(N) || N <- [DestinationName, ExchangeName]], - check_read_permitted(ExchangeName, State), - case Fun(#binding{source = ExchangeName, - destination = DestinationName, - key = ActualRoutingKey, - args = Arguments}, - fun (_X, Q = #amqqueue{}) -> - try rabbit_amqqueue:check_exclusive_access(Q, ConnPid) - catch exit:Reason -> {error, Reason} - end; - (_X, #exchange{}) -> - ok - end) of - {error, source_not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, destination_not_found} -> - rabbit_misc:not_found(DestinationName); - {error, source_and_destination_not_found} -> - rabbit_misc:protocol_error( - not_found, "no ~s and no ~s", [rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, binding_not_found} -> - rabbit_misc:protocol_error( - not_found, "no binding ~s between ~s and ~s", - [RoutingKey, rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, #amqp_error{} = Error} -> - rabbit_misc:protocol_error(Error); - ok -> return_ok(State, NoWait, ReturnMethod) - end. - -basic_return(#basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}, - #ch{protocol = Protocol, writer_pid = WriterPid}, Reason) -> - {_Close, ReplyCode, ReplyText} = Protocol:lookup_amqp_exception(Reason), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.return'{reply_code = ReplyCode, - reply_text = ReplyText, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - Content). - -reject(DeliveryTag, Requeue, Multiple, State = #ch{unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - rabbit_amqqueue:reject(QPid, MsgIds, Requeue, self()) - end, ok, Acked), - ok = notify_limiter(State#ch.limiter_pid, Acked), - {noreply, State#ch{unacked_message_q = Remaining}}. - -ack_record(DeliveryTag, ConsumerTag, - _MsgStruct = {_QName, QPid, MsgId, _Redelivered, _Msg}) -> - {DeliveryTag, ConsumerTag, {QPid, MsgId}}. - -collect_acks(Q, 0, true) -> - {Q, queue:new()}; -collect_acks(Q, DeliveryTag, Multiple) -> - collect_acks(queue:new(), queue:new(), Q, DeliveryTag, Multiple). - -collect_acks(ToAcc, PrefixAcc, Q, DeliveryTag, Multiple) -> - case queue:out(Q) of - {{value, UnackedMsg = {CurrentDeliveryTag, _ConsumerTag, _Msg}}, - QTail} -> - if CurrentDeliveryTag == DeliveryTag -> - {queue:in(UnackedMsg, ToAcc), queue:join(PrefixAcc, QTail)}; - Multiple -> - collect_acks(queue:in(UnackedMsg, ToAcc), PrefixAcc, - QTail, DeliveryTag, Multiple); - true -> - collect_acks(ToAcc, queue:in(UnackedMsg, PrefixAcc), - QTail, DeliveryTag, Multiple) - end; - {empty, _} -> - rabbit_misc:protocol_error( - precondition_failed, "unknown delivery tag ~w", [DeliveryTag]) - end. - -add_tx_participants(MoreP, State = #ch{tx_participants = Participants}) -> - State#ch{tx_participants = sets:union(Participants, - sets:from_list(MoreP))}. - -ack(TxnKey, UAQ) -> - fold_per_queue( - fun (QPid, MsgIds, L) -> - ok = rabbit_amqqueue:ack(QPid, TxnKey, MsgIds, self()), - [{QPid, length(MsgIds)} | L] - end, [], UAQ). - -make_tx_id() -> rabbit_guid:guid(). - -new_tx(State) -> - State#ch{transaction_id = make_tx_id(), - tx_participants = sets:new(), - uncommitted_ack_q = queue:new()}. - -internal_commit(State = #ch{transaction_id = TxnKey, - tx_participants = Participants}) -> - case rabbit_amqqueue:commit_all(sets:to_list(Participants), - TxnKey, self()) of - ok -> ok = notify_limiter(State#ch.limiter_pid, - State#ch.uncommitted_ack_q), - new_tx(State); - {error, Errors} -> rabbit_misc:protocol_error( - internal_error, "commit failed: ~w", [Errors]) - end. - -internal_rollback(State = #ch{transaction_id = TxnKey, - tx_participants = Participants, - uncommitted_ack_q = UAQ, - unacked_message_q = UAMQ}) -> - ?LOGDEBUG("rollback ~p~n - ~p acks uncommitted, ~p messages unacked~n", - [self(), - queue:len(UAQ), - queue:len(UAMQ)]), - ok = rabbit_amqqueue:rollback_all(sets:to_list(Participants), - TxnKey, self()), - NewUAMQ = queue:join(UAQ, UAMQ), - new_tx(State#ch{unacked_message_q = NewUAMQ}). - -rollback_and_notify(State = #ch{state = closing}) -> - {ok, State}; -rollback_and_notify(State = #ch{transaction_id = none}) -> - {notify_queues(State), State#ch{state = closing}}; -rollback_and_notify(State) -> - State1 = internal_rollback(State), - {notify_queues(State1), State1#ch{state = closing}}. - -fold_per_queue(F, Acc0, UAQ) -> - D = rabbit_misc:queue_fold( - fun ({_DTag, _CTag, {QPid, MsgId}}, D) -> - %% dict:append would avoid the lists:reverse in - %% handle_message({recover, true}, ...). However, it - %% is significantly slower when going beyond a few - %% thousand elements. - rabbit_misc:dict_cons(QPid, MsgId, D) - end, dict:new(), UAQ), - dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, - Acc0, D). - -start_limiter(State = #ch{unacked_message_q = UAMQ, start_limiter_fun = SLF}) -> - {ok, LPid} = SLF(queue:len(UAMQ)), - ok = limit_queues(LPid, State), - LPid. - -notify_queues(#ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:notify_down_all(consumer_queues(Consumers), self()). - -unlimit_queues(State) -> - ok = limit_queues(undefined, State), - undefined. - -limit_queues(LPid, #ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:limit_all(consumer_queues(Consumers), self(), LPid). - -consumer_queues(Consumers) -> - lists:usort([QPid || - {_Key, {#amqqueue{pid = QPid}, _MRef}} - <- dict:to_list(Consumers)]). - -%% tell the limiter about the number of acks that have been received -%% for messages delivered to subscribed consumers, but not acks for -%% messages sent in a response to a basic.get (identified by their -%% 'none' consumer tag) -notify_limiter(undefined, _Acked) -> - ok; -notify_limiter(LimiterPid, Acked) -> - case rabbit_misc:queue_fold(fun ({_, none, _}, Acc) -> Acc; - ({_, _, _}, Acc) -> Acc + 1 - end, 0, Acked) of - 0 -> ok; - Count -> rabbit_limiter:ack(LimiterPid, Count) - end. - -process_routing_result(unroutable, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State, no_route), - maybe_incr_stats([{Msg#basic_message.exchange_name, 1}], - return_unroutable, State), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(not_delivered, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State, no_consumers), - maybe_incr_stats([{Msg#basic_message.exchange_name, 1}], - return_not_delivered, State), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, [], XName, MsgSeqNo, _, State) -> - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, _, _, undefined, _, State) -> - State; -process_routing_result(routed, QPids, XName, MsgSeqNo, _, State) -> - #ch{unconfirmed_mq = UMQ, unconfirmed_qm = UQM} = State, - UMQ1 = gb_trees:insert(MsgSeqNo, {XName, gb_sets:from_list(QPids)}, UMQ), - SingletonSet = gb_sets:singleton(MsgSeqNo), - UQM1 = lists:foldl( - fun (QPid, UQM2) -> - maybe_monitor(QPid), - case gb_trees:lookup(QPid, UQM2) of - {value, MsgSeqNos} -> - MsgSeqNos1 = gb_sets:insert(MsgSeqNo, MsgSeqNos), - gb_trees:update(QPid, MsgSeqNos1, UQM2); - none -> - gb_trees:insert(QPid, SingletonSet, UQM2) - end - end, UQM, QPids), - State#ch{unconfirmed_mq = UMQ1, unconfirmed_qm = UQM1}. - -lock_message(true, MsgStruct, State = #ch{unacked_message_q = UAMQ}) -> - State#ch{unacked_message_q = queue:in(MsgStruct, UAMQ)}; -lock_message(false, _MsgStruct, State) -> - State. - -send_nacks([], State) -> - State; -send_nacks(MXs, State) -> - MsgSeqNos = [ MsgSeqNo || {MsgSeqNo, _} <- MXs ], - coalesce_and_send(MsgSeqNos, - fun(MsgSeqNo, Multiple) -> - #'basic.nack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State). - -send_confirms(State = #ch{confirmed = C}) -> - C1 = lists:append(C), - MsgSeqNos = [ begin maybe_incr_stats([{ExchangeName, 1}], confirm, State), - MsgSeqNo - end || {MsgSeqNo, ExchangeName} <- C1 ], - send_confirms(MsgSeqNos, State #ch{confirmed = []}). -send_confirms([], State) -> - State; -send_confirms([MsgSeqNo], State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, - #'basic.ack'{delivery_tag = MsgSeqNo}), - State; -send_confirms(Cs, State) -> - coalesce_and_send(Cs, fun(MsgSeqNo, Multiple) -> - #'basic.ack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State). - -coalesce_and_send(MsgSeqNos, MkMsgFun, - State = #ch{writer_pid = WriterPid, unconfirmed_mq = UMQ}) -> - SMsgSeqNos = lists:usort(MsgSeqNos), - CutOff = case gb_trees:is_empty(UMQ) of - true -> lists:last(SMsgSeqNos) + 1; - false -> {SeqNo, _XQ} = gb_trees:smallest(UMQ), SeqNo - end, - {Ms, Ss} = lists:splitwith(fun(X) -> X < CutOff end, SMsgSeqNos), - case Ms of - [] -> ok; - _ -> ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(lists:last(Ms), true)) - end, - [ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(SeqNo, false)) || SeqNo <- Ss], - State. - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, _) -> self(); -i(connection, #ch{conn_pid = ConnPid}) -> ConnPid; -i(number, #ch{channel = Channel}) -> Channel; -i(user, #ch{user = User}) -> User#user.username; -i(vhost, #ch{virtual_host = VHost}) -> VHost; -i(transactional, #ch{transaction_id = TxnKey}) -> TxnKey =/= none; -i(confirm, #ch{confirm_enabled = CE}) -> CE; -i(consumer_count, #ch{consumer_mapping = ConsumerMapping}) -> - dict:size(ConsumerMapping); -i(messages_unconfirmed, #ch{unconfirmed_mq = UMQ}) -> - gb_trees:size(UMQ); -i(messages_unacknowledged, #ch{unacked_message_q = UAMQ, - uncommitted_ack_q = UAQ}) -> - queue:len(UAMQ) + queue:len(UAQ); -i(acks_uncommitted, #ch{uncommitted_ack_q = UAQ}) -> - queue:len(UAQ); -i(prefetch_count, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:get_limit(LimiterPid); -i(client_flow_blocked, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:is_blocked(LimiterPid); -i(Item, _) -> - throw({bad_argument, Item}). - -maybe_incr_stats(QXIncs, Measure, #ch{stats_timer = StatsTimer}) -> - case rabbit_event:stats_level(StatsTimer) of - fine -> [incr_stats(QX, Inc, Measure) || {QX, Inc} <- QXIncs]; - _ -> ok - end. - -incr_stats({QPid, _} = QX, Inc, Measure) -> - maybe_monitor(QPid), - update_measures(queue_exchange_stats, QX, Inc, Measure); -incr_stats(QPid, Inc, Measure) when is_pid(QPid) -> - maybe_monitor(QPid), - update_measures(queue_stats, QPid, Inc, Measure); -incr_stats(X, Inc, Measure) -> - update_measures(exchange_stats, X, Inc, Measure). - -maybe_monitor(QPid) -> - case get({monitoring, QPid}) of - undefined -> erlang:monitor(process, QPid), - put({monitoring, QPid}, true); - _ -> ok - end. - -update_measures(Type, QX, Inc, Measure) -> - Measures = case get({Type, QX}) of - undefined -> []; - D -> D - end, - Cur = case orddict:find(Measure, Measures) of - error -> 0; - {ok, C} -> C - end, - put({Type, QX}, - orddict:store(Measure, Cur + Inc, Measures)). - -internal_emit_stats(State) -> - internal_emit_stats(State, []). - -internal_emit_stats(State = #ch{stats_timer = StatsTimer}, Extra) -> - CoarseStats = infos(?STATISTICS_KEYS, State), - case rabbit_event:stats_level(StatsTimer) of - coarse -> - rabbit_event:notify(channel_stats, Extra ++ CoarseStats); - fine -> - FineStats = - [{channel_queue_stats, - [{QPid, Stats} || {{queue_stats, QPid}, Stats} <- get()]}, - {channel_exchange_stats, - [{X, Stats} || {{exchange_stats, X}, Stats} <- get()]}, - {channel_queue_exchange_stats, - [{QX, Stats} || - {{queue_exchange_stats, QX}, Stats} <- get()]}], - rabbit_event:notify(channel_stats, - Extra ++ CoarseStats ++ FineStats) - end. - -erase_queue_stats(QPid) -> - erase({monitoring, QPid}), - erase({queue_stats, QPid}), - [erase({queue_exchange_stats, QX}) || - {{queue_exchange_stats, QX = {QPid0, _}}, _} <- get(), QPid =:= QPid0]. diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl deleted file mode 100644 index 65ccca02..00000000 --- a/src/rabbit_channel_sup.erl +++ /dev/null @@ -1,93 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup). - --behaviour(supervisor2). - --export([start_link/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([start_link_args/0]). - --type(start_link_args() :: - {'tcp', rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), pid(), rabbit_types:protocol(), rabbit_types:user(), - rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()} | - {'direct', rabbit_channel:channel_number(), pid(), - rabbit_types:protocol(), rabbit_types:user(), rabbit_types:vhost(), - rabbit_framing:amqp_table(), pid()}). - --spec(start_link/1 :: (start_link_args()) -> {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link({tcp, Sock, Channel, FrameMax, ReaderPid, Protocol, User, VHost, - Capabilities, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, WriterPid} = - supervisor2:start_child( - SupPid, - {writer, {rabbit_writer, start_link, - [Sock, Channel, FrameMax, Protocol, ReaderPid]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_writer]}), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ReaderPid, WriterPid, ReaderPid, Protocol, - User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, AState} = rabbit_command_assembler:init(Protocol), - {ok, SupPid, {ChannelPid, AState}}; -start_link({direct, Channel, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ClientChannelPid, ClientChannelPid, ConnPid, - Protocol, User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, SupPid, {ChannelPid, none}}. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. - -start_limiter_fun(SupPid) -> - fun (UnackedCount) -> - Me = self(), - {ok, _Pid} = - supervisor2:start_child( - SupPid, - {limiter, {rabbit_limiter, start_link, [Me, UnackedCount]}, - transient, ?MAX_WAIT, worker, [rabbit_limiter]}) - end. diff --git a/src/rabbit_channel_sup_sup.erl b/src/rabbit_channel_sup_sup.erl deleted file mode 100644 index e2561c80..00000000 --- a/src/rabbit_channel_sup_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup_sup). - --behaviour(supervisor2). - --export([start_link/0, start_channel/2]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(start_channel/2 :: (pid(), rabbit_channel_sup:start_link_args()) -> - {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor2:start_link(?MODULE, []). - -start_channel(Pid, Args) -> - supervisor2:start_child(Pid, [Args]). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{channel_sup, {rabbit_channel_sup, start_link, []}, - temporary, infinity, supervisor, [rabbit_channel_sup]}]}}. diff --git a/src/rabbit_client_sup.erl b/src/rabbit_client_sup.erl deleted file mode 100644 index 15e92542..00000000 --- a/src/rabbit_client_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_client_sup). - --behaviour(supervisor2). - --export([start_link/1, start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (mfa()) -> - rabbit_types:ok_pid_or_error()). --spec(start_link/2 :: ({'local', atom()}, mfa()) -> - rabbit_types:ok_pid_or_error()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Callback) -> - supervisor2:start_link(?MODULE, Callback). - -start_link(SupName, Callback) -> - supervisor2:start_link(SupName, ?MODULE, Callback). - -init({M,F,A}) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{client, {M,F,A}, temporary, infinity, supervisor, [M]}]}}. diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl deleted file mode 100644 index 07036ce8..00000000 --- a/src/rabbit_command_assembler.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_command_assembler). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([analyze_frame/3, init/1, process/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame_type() :: ?FRAME_METHOD | ?FRAME_HEADER | ?FRAME_BODY | - ?FRAME_OOB_METHOD | ?FRAME_OOB_HEADER | ?FRAME_OOB_BODY | - ?FRAME_TRACE | ?FRAME_HEARTBEAT). --type(protocol() :: rabbit_framing:protocol()). --type(method() :: rabbit_framing:amqp_method_record()). --type(class_id() :: rabbit_framing:amqp_class_id()). --type(weight() :: non_neg_integer()). --type(body_size() :: non_neg_integer()). --type(content() :: rabbit_types:undecoded_content()). - --type(frame() :: - {'method', rabbit_framing:amqp_method_name(), binary()} | - {'content_header', class_id(), weight(), body_size(), binary()} | - {'content_body', binary()}). - --type(state() :: - {'method', protocol()} | - {'content_header', method(), class_id(), protocol()} | - {'content_body', method(), body_size(), class_id(), protocol()}). - --spec(analyze_frame/3 :: (frame_type(), binary(), protocol()) -> - frame() | 'heartbeat' | 'error'). - --spec(init/1 :: (protocol()) -> {ok, state()}). --spec(process/2 :: (frame(), state()) -> - {ok, state()} | - {ok, method(), state()} | - {ok, method(), content(), state()} | - {error, rabbit_types:amqp_error()}). - --endif. - -%%-------------------------------------------------------------------- - -analyze_frame(?FRAME_METHOD, - <>, - Protocol) -> - MethodName = Protocol:lookup_method_name({ClassId, MethodId}), - {method, MethodName, MethodFields}; -analyze_frame(?FRAME_HEADER, - <>, - _Protocol) -> - {content_header, ClassId, Weight, BodySize, Properties}; -analyze_frame(?FRAME_BODY, Body, _Protocol) -> - {content_body, Body}; -analyze_frame(?FRAME_HEARTBEAT, <<>>, _Protocol) -> - heartbeat; -analyze_frame(_Type, _Body, _Protocol) -> - error. - -init(Protocol) -> {ok, {method, Protocol}}. - -process({method, MethodName, FieldsBin}, {method, Protocol}) -> - try - Method = Protocol:decode_method_fields(MethodName, FieldsBin), - case Protocol:method_has_content(MethodName) of - true -> {ClassId, _MethodId} = Protocol:method_id(MethodName), - {ok, {content_header, Method, ClassId, Protocol}}; - false -> {ok, Method, {method, Protocol}} - end - catch exit:#amqp_error{} = Reason -> {error, Reason} - end; -process(_Frame, {method, _Protocol}) -> - unexpected_frame("expected method frame, " - "got non method frame instead", [], none); -process({content_header, ClassId, 0, 0, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, Method, Content, {method, Protocol}}; -process({content_header, ClassId, 0, BodySize, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, {content_body, Method, BodySize, Content, Protocol}}; -process({content_header, HeaderClassId, 0, _BodySize, _PropertiesBin}, - {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got one for class ~w instead", - [ClassId, HeaderClassId], Method); -process(_Frame, {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got non content header frame instead", [ClassId], Method); -process({content_body, FragmentBin}, - {content_body, Method, RemainingSize, - Content = #content{payload_fragments_rev = Fragments}, Protocol}) -> - NewContent = Content#content{ - payload_fragments_rev = [FragmentBin | Fragments]}, - case RemainingSize - size(FragmentBin) of - 0 -> {ok, Method, NewContent, {method, Protocol}}; - Sz -> {ok, {content_body, Method, Sz, NewContent, Protocol}} - end; -process(_Frame, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("expected content body, " - "got non content body frame instead", [], Method). - -%%-------------------------------------------------------------------- - -empty_content(ClassId, PropertiesBin, Protocol) -> - #content{class_id = ClassId, - properties = none, - properties_bin = PropertiesBin, - protocol = Protocol, - payload_fragments_rev = []}. - -unexpected_frame(Format, Params, Method) when is_atom(Method) -> - {error, rabbit_misc:amqp_error(unexpected_frame, Format, Params, Method)}; -unexpected_frame(Format, Params, Method) -> - unexpected_frame(Format, Params, rabbit_misc:method_record_type(Method)). diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl deleted file mode 100644 index b2aba2ee..00000000 --- a/src/rabbit_connection_sup.erl +++ /dev/null @@ -1,65 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_connection_sup). - --behaviour(supervisor2). - --export([start_link/0, reader/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid(), pid()}). --spec(reader/1 :: (pid()) -> pid()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link() -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, Collector} = - supervisor2:start_child( - SupPid, - {collector, {rabbit_queue_collector, start_link, []}, - intrinsic, ?MAX_WAIT, worker, [rabbit_queue_collector]}), - {ok, ChannelSupSupPid} = - supervisor2:start_child( - SupPid, - {channel_sup_sup, {rabbit_channel_sup_sup, start_link, []}, - intrinsic, infinity, supervisor, [rabbit_channel_sup_sup]}), - {ok, ReaderPid} = - supervisor2:start_child( - SupPid, - {reader, {rabbit_reader, start_link, - [ChannelSupSupPid, Collector, - rabbit_heartbeat:start_heartbeat_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_reader]}), - {ok, SupPid, ReaderPid}. - -reader(Pid) -> - hd(supervisor2:find_child(Pid, reader)). - -%%-------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl deleted file mode 100644 index 1af91f4c..00000000 --- a/src/rabbit_control.erl +++ /dev/null @@ -1,416 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_control). --include("rabbit.hrl"). - --export([start/0, stop/0, action/5, diagnostics/1]). - --define(RPC_TIMEOUT, infinity). --define(WAIT_FOR_VM_ATTEMPTS, 5). - --define(QUIET_OPT, "-q"). --define(NODE_OPT, "-n"). --define(VHOST_OPT, "-p"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(action/5 :: - (atom(), node(), [string()], [{string(), any()}], - fun ((string(), [any()]) -> 'ok')) - -> 'ok'). --spec(diagnostics/1 :: (node()) -> [{string(), [any()]}]). --spec(usage/0 :: () -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), - {[Command0 | Args], Opts} = - case rabbit_misc:get_options([{flag, ?QUIET_OPT}, - {option, ?NODE_OPT, NodeStr}, - {option, ?VHOST_OPT, "/"}], - init:get_plain_arguments()) of - {[], _Opts} -> usage(); - CmdArgsAndOpts -> CmdArgsAndOpts - end, - Opts1 = [case K of - ?NODE_OPT -> {?NODE_OPT, rabbit_misc:makenode(V)}; - _ -> {K, V} - end || {K, V} <- Opts], - Command = list_to_atom(Command0), - Quiet = proplists:get_bool(?QUIET_OPT, Opts1), - Node = proplists:get_value(?NODE_OPT, Opts1), - Inform = case Quiet of - true -> fun (_Format, _Args1) -> ok end; - false -> fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end - end, - %% The reason we don't use a try/catch here is that rpc:call turns - %% thrown errors into normal return values - case catch action(Command, Node, Args, Opts, Inform) of - ok -> - case Quiet of - true -> ok; - false -> io:format("...done.~n") - end, - quit(0); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error("invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]), - usage(); - {error, Reason} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, {'EXIT', Reason}} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, Reason} -> - print_error("unable to connect to node ~w: ~w", [Node, Reason]), - print_badrpc_diagnostics(Node), - quit(2); - Other -> - print_error("~p", [Other]), - quit(2) - end. - -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - -print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - -print_badrpc_diagnostics(Node) -> - [fmt_stderr(Fmt, Args) || {Fmt, Args} <- diagnostics(Node)]. - -diagnostics(Node) -> - {_NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - [{"diagnostics:", []}, - case net_adm:names(NodeHost) of - {error, EpmdReason} -> - {"- unable to connect to epmd on ~s: ~w", - [NodeHost, EpmdReason]}; - {ok, NamePorts} -> - {"- nodes and their ports on ~s: ~p", - [NodeHost, [{list_to_atom(Name), Port} || - {Name, Port} <- NamePorts]]} - end, - {"- current node: ~w", [node()]}, - case init:get_argument(home) of - {ok, [[Home]]} -> {"- current node home dir: ~s", [Home]}; - Other -> {"- no current node home dir: ~p", [Other]} - end, - {"- current node cookie hash: ~s", [rabbit_misc:cookie_hash()]}]. - -stop() -> - ok. - -usage() -> - io:format("~s", [rabbit_ctl_usage:usage()]), - quit(1). - -%%---------------------------------------------------------------------------- - -action(stop, Node, [], _Opts, Inform) -> - Inform("Stopping and halting node ~p", [Node]), - call(Node, {rabbit, stop_and_halt, []}); - -action(stop_app, Node, [], _Opts, Inform) -> - Inform("Stopping node ~p", [Node]), - call(Node, {rabbit, stop, []}); - -action(start_app, Node, [], _Opts, Inform) -> - Inform("Starting node ~p", [Node]), - call(Node, {rabbit, start, []}); - -action(reset, Node, [], _Opts, Inform) -> - Inform("Resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, reset, []}); - -action(force_reset, Node, [], _Opts, Inform) -> - Inform("Forcefully resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, force_reset, []}); - -action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); - -action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); - -action(wait, Node, [], _Opts, Inform) -> - Inform("Waiting for ~p", [Node]), - wait_for_application(Node, ?WAIT_FOR_VM_ATTEMPTS); - -action(status, Node, [], _Opts, Inform) -> - Inform("Status of node ~p", [Node]), - case call(Node, {rabbit, status, []}) of - {badrpc, _} = Res -> Res; - Res -> io:format("~p~n", [Res]), - ok - end; - -action(rotate_logs, Node, [], _Opts, Inform) -> - Inform("Reopening logs for node ~p", [Node]), - call(Node, {rabbit, rotate_logs, [""]}); -action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), - call(Node, {rabbit, rotate_logs, Args}); - -action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> - Inform("Closing connection ~s", [PidStr]), - rpc_call(Node, rabbit_networking, close_connection, - [rabbit_misc:string_to_pid(PidStr), Explanation]); - -action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> - Inform("Creating user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, add_user, Args}); - -action(delete_user, Node, Args = [_Username], _Opts, Inform) -> - Inform("Deleting user ~p", Args), - call(Node, {rabbit_auth_backend_internal, delete_user, Args}); - -action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> - Inform("Changing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, change_password, Args}); - -action(clear_password, Node, Args = [Username], _Opts, Inform) -> - Inform("Clearing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_password, Args}); - -action(set_admin, Node, [Username], _Opts, Inform) -> - Inform("Setting administrative status for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, set_admin, [Username]}); - -action(clear_admin, Node, [Username], _Opts, Inform) -> - Inform("Clearing administrative status for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_admin, [Username]}); - -action(list_users, Node, [], _Opts, Inform) -> - Inform("Listing users", []), - display_list(call(Node, {rabbit_auth_backend_internal, list_users, []})); - -action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Creating vhost ~p", Args), - call(Node, {rabbit_vhost, add, Args}); - -action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Deleting vhost ~p", Args), - call(Node, {rabbit_vhost, delete, Args}); - -action(list_vhosts, Node, [], _Opts, Inform) -> - Inform("Listing vhosts", []), - display_list(call(Node, {rabbit_vhost, list, []})); - -action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> - Inform("Listing permissions for user ~p", Args), - display_list(call(Node, {rabbit_auth_backend_internal, - list_user_permissions, Args})); - -action(list_queues, Node, Args, Opts, Inform) -> - Inform("Listing queues", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, messages]), - display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_exchanges, Node, Args, Opts, Inform) -> - Inform("Listing exchanges", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, type]), - display_info_list(rpc_call(Node, rabbit_exchange, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_bindings, Node, Args, Opts, Inform) -> - Inform("Listing bindings", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]), - display_info_list(rpc_call(Node, rabbit_binding, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_connections, Node, Args, _Opts, Inform) -> - Inform("Listing connections", []), - ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), - display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, - [ArgAtoms]), - ArgAtoms); - -action(list_channels, Node, Args, _Opts, Inform) -> - Inform("Listing channels", []), - ArgAtoms = default_if_empty(Args, [pid, user, transactional, consumer_count, - messages_unacknowledged]), - display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); - -action(list_consumers, Node, _Args, Opts, Inform) -> - Inform("Listing consumers", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - InfoKeys = [queue_name, channel_pid, consumer_tag, ack_required], - case rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg]) of - L when is_list(L) -> display_info_list( - [lists:zip(InfoKeys, tuple_to_list(X)) || - X <- L], - InfoKeys); - Other -> Other - end; - -action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, [Username], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, clear_permissions, - [Username, VHost]}); - -action(list_permissions, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Listing permissions in vhost ~p", [VHost]), - display_list(call(Node, {rabbit_auth_backend_internal, - list_vhost_permissions, [VHost]})). - -%%---------------------------------------------------------------------------- - -wait_for_application(Node, Attempts) -> - case rpc_call(Node, application, which_applications, [infinity]) of - {badrpc, _} = E -> case Attempts of - 0 -> E; - _ -> wait_for_application0(Node, Attempts - 1) - end; - Apps -> case proplists:is_defined(rabbit, Apps) of - %% We've seen the node up; if it goes down - %% die immediately. - true -> ok; - false -> wait_for_application0(Node, 0) - end - end. - -wait_for_application0(Node, Attempts) -> - timer:sleep(1000), - wait_for_application(Node, Attempts). - -default_if_empty(List, Default) when is_list(List) -> - if List == [] -> Default; - true -> [list_to_atom(X) || X <- List] - end. - -display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach( - fun (Result) -> display_row( - [format_info_item(proplists:get_value(X, Result)) || - X <- InfoItemKeys]) - end, Results), - ok; -display_info_list(Other, _) -> - Other. - -display_row(Row) -> - io:fwrite(string:join(Row, "\t")), - io:nl(). - --define(IS_U8(X), (X >= 0 andalso X =< 255)). --define(IS_U16(X), (X >= 0 andalso X =< 65535)). - -format_info_item(#resource{name = Name}) -> - escape(Name); -format_info_item({N1, N2, N3, N4} = Value) when - ?IS_U8(N1), ?IS_U8(N2), ?IS_U8(N3), ?IS_U8(N4) -> - rabbit_misc:ntoa(Value); -format_info_item({K1, K2, K3, K4, K5, K6, K7, K8} = Value) when - ?IS_U16(K1), ?IS_U16(K2), ?IS_U16(K3), ?IS_U16(K4), - ?IS_U16(K5), ?IS_U16(K6), ?IS_U16(K7), ?IS_U16(K8) -> - rabbit_misc:ntoa(Value); -format_info_item(Value) when is_pid(Value) -> - rabbit_misc:pid_to_string(Value); -format_info_item(Value) when is_binary(Value) -> - escape(Value); -format_info_item(Value) when is_atom(Value) -> - escape(atom_to_list(Value)); -format_info_item([{TableEntryKey, TableEntryType, _TableEntryValue} | _] = - Value) when is_binary(TableEntryKey) andalso - is_atom(TableEntryType) -> - io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); -format_info_item(Value) -> - io_lib:format("~w", [Value]). - -display_list(L) when is_list(L) -> - lists:foreach(fun (I) when is_binary(I) -> - io:format("~s~n", [escape(I)]); - (I) when is_tuple(I) -> - display_row([escape(V) - || V <- tuple_to_list(I)]) - end, - lists:sort(L)), - ok; -display_list(Other) -> Other. - -call(Node, {Mod, Fun, Args}) -> - rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). - -rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). - -%% escape does C-style backslash escaping of non-printable ASCII -%% characters. We don't escape characters above 127, since they may -%% form part of UTF-8 strings. - -escape(Atom) when is_atom(Atom) -> escape(atom_to_list(Atom)); -escape(Bin) when is_binary(Bin) -> escape(binary_to_list(Bin)); -escape(L) when is_list(L) -> escape_char(lists:reverse(L), []). - -escape_char([$\\ | T], Acc) -> - escape_char(T, [$\\, $\\ | Acc]); -escape_char([X | T], Acc) when X >= 32, X /= 127 -> - escape_char(T, [X | Acc]); -escape_char([X | T], Acc) -> - escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), - $0 + (X band 7) | Acc]); -escape_char([], Acc) -> - Acc. - -prettify_amqp_table(Table) -> - [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. - -prettify_typed_amqp_value(longstr, Value) -> escape(Value); -prettify_typed_amqp_value(table, Value) -> prettify_amqp_table(Value); -prettify_typed_amqp_value(array, Value) -> [prettify_typed_amqp_value(T, V) || - {T, V} <- Value]; -prettify_typed_amqp_value(_Type, Value) -> Value. - -%% the slower shutdown on windows required to flush stdout -quit(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status) - end. diff --git a/src/rabbit_direct.erl b/src/rabbit_direct.erl deleted file mode 100644 index 0810c762..00000000 --- a/src/rabbit_direct.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_direct). - --export([boot/0, connect/4, start_channel/8]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(boot/0 :: () -> 'ok'). --spec(connect/4 :: (binary(), binary(), binary(), rabbit_types:protocol()) -> - {'ok', {rabbit_types:user(), - rabbit_framing:amqp_table()}}). --spec(start_channel/8 :: - (rabbit_channel:channel_number(), pid(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()) -> {'ok', pid()}). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - {ok, _} = - supervisor2:start_child( - rabbit_sup, - {rabbit_direct_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_direct_client_sup}, - {rabbit_channel_sup, start_link, []}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%%---------------------------------------------------------------------------- - -connect(Username, Password, VHost, Protocol) -> - case lists:keymember(rabbit, 1, application:which_applications()) of - true -> - try rabbit_access_control:user_pass_login(Username, Password) of - #user{} = User -> - try rabbit_access_control:check_vhost_access(User, VHost) of - ok -> {ok, {User, - rabbit_reader:server_properties(Protocol)}} - catch - exit:#amqp_error{name = access_refused} -> - {error, access_refused} - end - catch - exit:#amqp_error{name = access_refused} -> {error, auth_failure} - end; - false -> - {error, broker_not_found_on_node} - end. - -start_channel(Number, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector) -> - {ok, _, {ChannelPid, _}} = - supervisor2:start_child( - rabbit_direct_client_sup, - [{direct, Number, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector}]), - {ok, ChannelPid}. diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl deleted file mode 100644 index 3fb0817a..00000000 --- a/src/rabbit_error_logger.erl +++ /dev/null @@ -1,78 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(LOG_EXCH_NAME, <<"amq.rabbitmq.log">>). - --behaviour(gen_event). - --export([boot/0]). - --export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, - handle_info/2]). - -boot() -> - {ok, DefaultVHost} = application:get_env(default_vhost), - ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). - -init([DefaultVHost]) -> - #exchange{} = rabbit_exchange:declare( - rabbit_misc:r(DefaultVHost, exchange, ?LOG_EXCH_NAME), - topic, true, false, false, []), - {ok, #resource{virtual_host = DefaultVHost, - kind = exchange, - name = ?LOG_EXCH_NAME}}. - -terminate(_Arg, _State) -> - terminated_ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State) -> - ok = publish(Kind, Format, Data, State), - {ok, State}; -handle_event(_Event, State) -> - {ok, State}. - -handle_info(_Info, State) -> - {ok, State}. - -publish(error, Format, Data, State) -> - publish1(<<"error">>, Format, Data, State); -publish(warning_msg, Format, Data, State) -> - publish1(<<"warning">>, Format, Data, State); -publish(info_msg, Format, Data, State) -> - publish1(<<"info">>, Format, Data, State); -publish(_Other, _Format, _Data, _State) -> - ok. - -publish1(RoutingKey, Format, Data, LogExch) -> - %% 0-9-1 says the timestamp is a "64 bit POSIX timestamp". That's - %% second resolution, not millisecond. - Timestamp = rabbit_misc:now_ms() div 1000, - {ok, _RoutingRes, _DeliveredQPids} = - rabbit_basic:publish(LogExch, RoutingKey, false, false, none, - #'P_basic'{content_type = <<"text/plain">>, - timestamp = Timestamp}, - list_to_binary(io_lib:format(Format, Data))), - ok. diff --git a/src/rabbit_error_logger_file_h.erl b/src/rabbit_error_logger_file_h.erl deleted file mode 100644 index 7e9ebc4f..00000000 --- a/src/rabbit_error_logger_file_h.erl +++ /dev/null @@ -1,68 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_error_logger_file_h is a wrapper around the error_logger_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers in log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without performing -%% log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(File). - -handle_event(Event, State) -> - error_logger_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - error_logger_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - error_logger_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - error_logger_file_h:terminate(Reason, State). - -code_change(OldVsn, State, Extra) -> - error_logger_file_h:code_change(OldVsn, State, Extra). diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl deleted file mode 100644 index 9ed532db..00000000 --- a/src/rabbit_event.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_event). - --include("rabbit.hrl"). - --export([start_link/0]). --export([init_stats_timer/0, ensure_stats_timer/2, stop_stats_timer/1]). --export([reset_stats_timer/1]). --export([stats_level/1, if_enabled/2]). --export([notify/2, notify_if/3]). - -%%---------------------------------------------------------------------------- - --record(state, {level, timer}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([event_type/0, event_props/0, event_timestamp/0, event/0]). - --type(event_type() :: atom()). --type(event_props() :: term()). --type(event_timestamp() :: - {non_neg_integer(), non_neg_integer(), non_neg_integer()}). - --type(event() :: #event { - type :: event_type(), - props :: event_props(), - timestamp :: event_timestamp() - }). - --type(level() :: 'none' | 'coarse' | 'fine'). - --opaque(state() :: #state { - level :: level(), - timer :: atom() - }). - --type(timer_fun() :: fun (() -> 'ok')). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(init_stats_timer/0 :: () -> state()). --spec(ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). --spec(stop_stats_timer/1 :: (state()) -> state()). --spec(reset_stats_timer/1 :: (state()) -> state()). --spec(stats_level/1 :: (state()) -> level()). --spec(if_enabled/2 :: (state(), timer_fun()) -> 'ok'). --spec(notify/2 :: (event_type(), event_props()) -> 'ok'). --spec(notify_if/3 :: (boolean(), event_type(), event_props()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_event:start_link({local, ?MODULE}). - -%% The idea is, for each stat-emitting object: -%% -%% On startup: -%% Timer = init_stats_timer() -%% notify(created event) -%% if_enabled(internal_emit_stats) - so we immediately send something -%% -%% On wakeup: -%% ensure_stats_timer(Timer, emit_stats) -%% (Note we can't emit stats immediately, the timer may have fired 1ms ago.) -%% -%% emit_stats: -%% if_enabled(internal_emit_stats) -%% reset_stats_timer(Timer) - just bookkeeping -%% -%% Pre-hibernation: -%% if_enabled(internal_emit_stats) -%% stop_stats_timer(Timer) -%% -%% internal_emit_stats: -%% notify(stats) - -init_stats_timer() -> - {ok, StatsLevel} = application:get_env(rabbit, collect_statistics), - #state{level = StatsLevel, timer = undefined}. - -ensure_stats_timer(State = #state{level = none}, _Fun) -> - State; -ensure_stats_timer(State = #state{timer = undefined}, Fun) -> - {ok, TRef} = timer:apply_after(?STATS_INTERVAL, - erlang, apply, [Fun, []]), - State#state{timer = TRef}; -ensure_stats_timer(State, _Fun) -> - State. - -stop_stats_timer(State = #state{level = none}) -> - State; -stop_stats_timer(State = #state{timer = undefined}) -> - State; -stop_stats_timer(State = #state{timer = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#state{timer = undefined}. - -reset_stats_timer(State) -> - State#state{timer = undefined}. - -stats_level(#state{level = Level}) -> - Level. - -if_enabled(#state{level = none}, _Fun) -> - ok; -if_enabled(_State, Fun) -> - Fun(), - ok. - -notify_if(true, Type, Props) -> notify(Type, Props); -notify_if(false, _Type, _Props) -> ok. - -notify(Type, Props) -> - %% TODO: switch to os:timestamp() when we drop support for - %% Erlang/OTP < R13B01 - gen_event:notify(rabbit_event, #event{type = Type, - props = Props, - timestamp = now()}). diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl deleted file mode 100644 index 9d9b07af..00000000 --- a/src/rabbit_exchange.erl +++ /dev/null @@ -1,312 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([recover/0, callback/3, declare/6, - assert_equivalence/6, assert_args_equivalence/2, check_type/1, - lookup/1, lookup_or_die/1, list/1, - info_keys/0, info/1, info/2, info_all/1, info_all/2, - publish/2, delete/2]). -%% this must be run inside a mnesia tx --export([maybe_auto_delete/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, type/0]). - --type(name() :: rabbit_types:r('exchange')). --type(type() :: atom()). --type(fun_name() :: atom()). - --spec(recover/0 :: () -> 'ok'). --spec(callback/3:: (rabbit_types:exchange(), fun_name(), [any()]) -> 'ok'). --spec(declare/6 :: - (name(), type(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> rabbit_types:exchange()). --spec(check_type/1 :: - (binary()) -> atom() | rabbit_types:connection_exit()). --spec(assert_equivalence/6 :: - (rabbit_types:exchange(), atom(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:exchange()) | - rabbit_types:error('not_found')). --spec(lookup_or_die/1 :: - (name()) -> rabbit_types:exchange() | - rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:exchange()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:exchange()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:exchange(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(publish/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> {rabbit_router:routing_result(), [pid()]}). --spec(delete/2 :: - (name(), boolean())-> 'ok' | - rabbit_types:error('not_found') | - rabbit_types:error('in_use')). --spec(maybe_auto_delete/1:: - (rabbit_types:exchange()) - -> 'not_deleted' | {'deleted', rabbit_binding:deletions()}). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [name, type, durable, auto_delete, internal, arguments]). - -recover() -> - Xs = rabbit_misc:table_fold( - fun (X, Acc) -> - ok = mnesia:write(rabbit_exchange, X, write), - [X | Acc] - end, [], rabbit_durable_exchange), - Bs = rabbit_binding:recover(), - recover_with_bindings( - lists:keysort(#binding.source, Bs), - lists:keysort(#exchange.name, Xs), []). - -recover_with_bindings([B = #binding{source = XName} | Rest], - Xs = [#exchange{name = XName} | _], - Bindings) -> - recover_with_bindings(Rest, Xs, [B | Bindings]); -recover_with_bindings(Bs, [X = #exchange{type = Type} | Xs], Bindings) -> - (type_to_module(Type)):recover(X, Bindings), - recover_with_bindings(Bs, Xs, []); -recover_with_bindings([], [], []) -> - ok. - -callback(#exchange{type = XType}, Fun, Args) -> - apply(type_to_module(XType), Fun, Args). - -declare(XName, Type, Durable, AutoDelete, Internal, Args) -> - X = #exchange{name = XName, - type = Type, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - arguments = Args}, - %% We want to upset things if it isn't ok - ok = (type_to_module(Type)):validate(X), - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_exchange, XName}) of - [] -> - ok = mnesia:write(rabbit_exchange, X, write), - ok = case Durable of - true -> mnesia:write(rabbit_durable_exchange, - X, write); - false -> ok - end, - {new, X}; - [ExistingX] -> - {existing, ExistingX} - end - end, - fun ({new, Exchange}, Tx) -> - ok = (type_to_module(Type)):create(Tx, Exchange), - rabbit_event:notify_if(not Tx, exchange_created, info(Exchange)), - Exchange; - ({existing, Exchange}, _Tx) -> - Exchange; - (Err, _Tx) -> - Err - end). - -%% Used with binaries sent over the wire; the type may not exist. -check_type(TypeBin) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown exchange type '~s'", [TypeBin]); - T -> - case rabbit_registry:lookup_module(exchange, T) of - {error, not_found} -> rabbit_misc:protocol_error( - command_invalid, - "invalid exchange type '~s'", [T]); - {ok, _Module} -> T - end - end. - -assert_equivalence(X = #exchange{ durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - type = Type}, - Type, Durable, AutoDelete, Internal, RequiredArgs) -> - (type_to_module(Type)):assert_args_equivalence(X, RequiredArgs); -assert_equivalence(#exchange{ name = Name }, - _Type, _Durable, _Internal, _AutoDelete, _Args) -> - rabbit_misc:protocol_error( - precondition_failed, - "cannot redeclare ~s with different type, durable, " - "internal or autodelete value", - [rabbit_misc:rs(Name)]). - -assert_args_equivalence(#exchange{ name = Name, arguments = Args }, - RequiredArgs) -> - %% The spec says "Arguments are compared for semantic - %% equivalence". The only arg we care about is - %% "alternate-exchange". - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, Name, - [<<"alternate-exchange">>]). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_exchange, Name}). - -lookup_or_die(Name) -> - case lookup(Name) of - {ok, X} -> X; - {error, not_found} -> rabbit_misc:not_found(Name) - end. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_exchange, - #exchange{name = rabbit_misc:r(VHostPath, exchange), _ = '_'}). - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, X) -> [{Item, i(Item, X)} || Item <- Items]. - -i(name, #exchange{name = Name}) -> Name; -i(type, #exchange{type = Type}) -> Type; -i(durable, #exchange{durable = Durable}) -> Durable; -i(auto_delete, #exchange{auto_delete = AutoDelete}) -> AutoDelete; -i(internal, #exchange{internal = Internal}) -> Internal; -i(arguments, #exchange{arguments = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(X = #exchange{}) -> infos(?INFO_KEYS, X). - -info(X = #exchange{}, Items) -> infos(Items, X). - -info_all(VHostPath) -> map(VHostPath, fun (X) -> info(X) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (X) -> info(X, Items) end). - -publish(X = #exchange{name = XName}, Delivery) -> - rabbit_router:deliver( - route(Delivery, {queue:from_list([X]), XName, []}), - Delivery). - -route(Delivery, {WorkList, SeenXs, QNames}) -> - case queue:out(WorkList) of - {empty, _WorkList} -> - lists:usort(QNames); - {{value, X = #exchange{type = Type}}, WorkList1} -> - DstNames = process_alternate( - X, ((type_to_module(Type)):route(X, Delivery))), - route(Delivery, - lists:foldl(fun process_route/2, {WorkList1, SeenXs, QNames}, - DstNames)) - end. - -process_alternate(#exchange{name = XName, arguments = Args}, []) -> - case rabbit_misc:r_arg(XName, exchange, Args, <<"alternate-exchange">>) of - undefined -> []; - AName -> [AName] - end; -process_alternate(_X, Results) -> - Results. - -process_route(#resource{kind = exchange} = XName, - {_WorkList, XName, _QNames} = Acc) -> - Acc; -process_route(#resource{kind = exchange} = XName, - {WorkList, #resource{kind = exchange} = SeenX, QNames}) -> - {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:from_list([SeenX, XName]), QNames}; -process_route(#resource{kind = exchange} = XName, - {WorkList, SeenXs, QNames} = Acc) -> - case gb_sets:is_element(XName, SeenXs) of - true -> Acc; - false -> {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:add_element(XName, SeenXs), QNames} - end; -process_route(#resource{kind = queue} = QName, - {WorkList, SeenXs, QNames}) -> - {WorkList, SeenXs, [QName | QNames]}. - -call_with_exchange(XName, Fun, PrePostCommitFun) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> case mnesia:read({rabbit_exchange, XName}) of - [] -> {error, not_found}; - [X] -> Fun(X) - end - end, PrePostCommitFun). - -delete(XName, IfUnused) -> - call_with_exchange( - XName, - case IfUnused of - true -> fun conditional_delete/1; - false -> fun unconditional_delete/1 - end, - fun ({deleted, X, Bs, Deletions}, Tx) -> - ok = rabbit_binding:process_deletions( - rabbit_binding:add_deletion( - XName, {X, deleted, Bs}, Deletions), Tx); - (Error = {error, _InUseOrNotFound}, _Tx) -> - Error - end). - -maybe_auto_delete(#exchange{auto_delete = false}) -> - not_deleted; -maybe_auto_delete(#exchange{auto_delete = true} = X) -> - case conditional_delete(X) of - {error, in_use} -> not_deleted; - {deleted, X, [], Deletions} -> {deleted, Deletions} - end. - -conditional_delete(X = #exchange{name = XName}) -> - case rabbit_binding:has_for_source(XName) of - false -> unconditional_delete(X); - true -> {error, in_use} - end. - -unconditional_delete(X = #exchange{name = XName}) -> - ok = mnesia:delete({rabbit_durable_exchange, XName}), - ok = mnesia:delete({rabbit_exchange, XName}), - Bindings = rabbit_binding:remove_for_source(XName), - {deleted, X, Bindings, rabbit_binding:remove_for_destination(XName)}. - -%% Used with atoms from records; e.g., the type is expected to exist. -type_to_module(T) -> - {ok, Module} = rabbit_registry:lookup_module(exchange, T), - Module. diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl deleted file mode 100644 index 547583e9..00000000 --- a/src/rabbit_exchange_type.erl +++ /dev/null @@ -1,50 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - {description, 0}, - {route, 2}, - - %% called BEFORE declaration, to check args etc; may exit with #amqp_error{} - {validate, 1}, - - %% called after declaration when previously absent - {create, 2}, - - %% called when recovering - {recover, 2}, - - %% called after exchange deletion. - {delete, 3}, - - %% called after a binding has been added - {add_binding, 3}, - - %% called after bindings have been deleted. - {remove_bindings, 3}, - - %% called when comparing exchanges for equivalence - should return ok or - %% exit with #amqp_error{} - {assert_args_equivalence, 2} - - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_exchange_type_direct.erl b/src/rabbit_exchange_type_direct.erl deleted file mode 100644 index 349c2f6e..00000000 --- a/src/rabbit_exchange_type_direct.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_direct). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, - add_binding/3, remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type direct"}, - {mfa, {rabbit_registry, register, - [exchange, <<"direct">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"direct">>}, - {description, <<"AMQP direct exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{routing_keys = Routes}}) -> - rabbit_router:match_routing_key(Name, Routes). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_fanout.erl b/src/rabbit_exchange_type_fanout.erl deleted file mode 100644 index bc5293c8..00000000 --- a/src/rabbit_exchange_type_fanout.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_fanout). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type fanout"}, - {mfa, {rabbit_registry, register, - [exchange, <<"fanout">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"fanout">>}, - {description, <<"AMQP fanout exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, _Delivery) -> - rabbit_router:match_routing_key(Name, ['_']). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_headers.erl b/src/rabbit_exchange_type_headers.erl deleted file mode 100644 index d3529b06..00000000 --- a/src/rabbit_exchange_type_headers.erl +++ /dev/null @@ -1,122 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_headers). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type headers"}, - {mfa, {rabbit_registry, register, - [exchange, <<"headers">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --ifdef(use_specs). --spec(headers_match/2 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table()) -> boolean()). --endif. - -description() -> - [{name, <<"headers">>}, - {description, <<"AMQP headers exchange, as per the AMQP specification">>}]. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{content = Content}}) -> - Headers = case (Content#content.properties)#'P_basic'.headers of - undefined -> []; - H -> rabbit_misc:sort_field_table(H) - end, - rabbit_router:match_bindings( - Name, fun (#binding{args = Spec}) -> headers_match(Spec, Headers) end). - -default_headers_match_kind() -> all. - -parse_x_match(<<"all">>) -> all; -parse_x_match(<<"any">>) -> any; -parse_x_match(Other) -> - rabbit_log:warning("Invalid x-match field value ~p; expected all or any", - [Other]), - default_headers_match_kind(). - -%% Horrendous matching algorithm. Depends for its merge-like -%% (linear-time) behaviour on the lists:keysort -%% (rabbit_misc:sort_field_table) that route/1 and -%% rabbit_binding:{add,remove}/2 do. -%% -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% In other words: REQUIRES BOTH PATTERN AND DATA TO BE SORTED ASCENDING BY KEY. -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% -headers_match(Pattern, Data) -> - MatchKind = case lists:keysearch(<<"x-match">>, 1, Pattern) of - {value, {_, longstr, MK}} -> parse_x_match(MK); - {value, {_, Type, MK}} -> - rabbit_log:warning("Invalid x-match field type ~p " - "(value ~p); expected longstr", - [Type, MK]), - default_headers_match_kind(); - _ -> default_headers_match_kind() - end, - headers_match(Pattern, Data, true, false, MatchKind). - -headers_match([], _Data, AllMatch, _AnyMatch, all) -> - AllMatch; -headers_match([], _Data, _AllMatch, AnyMatch, any) -> - AnyMatch; -headers_match([{<<"x-", _/binary>>, _PT, _PV} | PRest], Data, - AllMatch, AnyMatch, MatchKind) -> - headers_match(PRest, Data, AllMatch, AnyMatch, MatchKind); -headers_match(_Pattern, [], _AllMatch, AnyMatch, MatchKind) -> - headers_match([], [], false, AnyMatch, MatchKind); -headers_match(Pattern = [{PK, _PT, _PV} | _], [{DK, _DT, _DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK > DK -> - headers_match(Pattern, DRest, AllMatch, AnyMatch, MatchKind); -headers_match([{PK, _PT, _PV} | PRest], Data = [{DK, _DT, _DV} | _], - _AllMatch, AnyMatch, MatchKind) when PK < DK -> - headers_match(PRest, Data, false, AnyMatch, MatchKind); -headers_match([{PK, PT, PV} | PRest], [{DK, DT, DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK == DK -> - {AllMatch1, AnyMatch1} = - if - %% It's not properly specified, but a "no value" in a - %% pattern field is supposed to mean simple presence of - %% the corresponding data field. I've interpreted that to - %% mean a type of "void" for the pattern field. - PT == void -> {AllMatch, true}; - %% Similarly, it's not specified, but I assume that a - %% mismatched type causes a mismatched value. - PT =/= DT -> {false, AnyMatch}; - PV == DV -> {AllMatch, true}; - true -> {false, AnyMatch} - end, - headers_match(PRest, DRest, AllMatch1, AnyMatch1, MatchKind). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -recover(_X, _Bs) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_topic.erl b/src/rabbit_exchange_type_topic.erl deleted file mode 100644 index c192f8cf..00000000 --- a/src/rabbit_exchange_type_topic.erl +++ /dev/null @@ -1,282 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_topic). - --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, route/2]). --export([validate/1, create/2, recover/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type topic"}, - {mfa, {rabbit_registry, register, - [exchange, <<"topic">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%%---------------------------------------------------------------------------- - -description() -> - [{name, <<"topic">>}, - {description, <<"AMQP topic exchange, as per the AMQP specification">>}]. - -%% NB: This may return duplicate results in some situations (that's ok) -route(#exchange{name = X}, - #delivery{message = #basic_message{routing_keys = Routes}}) -> - lists:append([begin - Words = split_topic_key(RKey), - mnesia:async_dirty(fun trie_match/2, [X, Words]) - end || RKey <- Routes]). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. - -recover(_Exchange, Bs) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> - lists:foreach(fun (B) -> internal_add_binding(B) end, Bs) - end). - -delete(true, #exchange{name = X}, _Bs) -> - trie_remove_all_edges(X), - trie_remove_all_bindings(X), - ok; -delete(false, _Exchange, _Bs) -> - ok. - -add_binding(true, _Exchange, Binding) -> - internal_add_binding(Binding); -add_binding(false, _Exchange, _Binding) -> - ok. - -remove_bindings(true, #exchange{name = X}, Bs) -> - %% The remove process is split into two distinct phases. In the - %% first phase we gather the lists of bindings and edges to - %% delete, then in the second phase we process all the - %% deletions. This is to prevent interleaving of read/write - %% operations in mnesia that can adversely affect performance. - {ToDelete, Paths} = - lists:foldl( - fun(#binding{source = S, key = K, destination = D}, {Acc, PathAcc}) -> - Path = [{FinalNode, _} | _] = - follow_down_get_path(S, split_topic_key(K)), - {[{FinalNode, D} | Acc], - decrement_bindings(X, Path, maybe_add_path(X, Path, PathAcc))} - end, {[], gb_trees:empty()}, Bs), - - [trie_remove_binding(X, FinalNode, D) || {FinalNode, D} <- ToDelete], - [trie_remove_edge(X, Parent, Node, W) || - {Node, {Parent, W, {0, 0}}} <- gb_trees:to_list(Paths)], - ok; -remove_bindings(false, _X, _Bs) -> - ok. - -maybe_add_path(_X, [{root, none}], PathAcc) -> - PathAcc; -maybe_add_path(X, [{Node, W}, {Parent, _} | _], PathAcc) -> - case gb_trees:is_defined(Node, PathAcc) of - true -> PathAcc; - false -> gb_trees:insert(Node, {Parent, W, {trie_binding_count(X, Node), - trie_child_count(X, Node)}}, - PathAcc) - end. - -decrement_bindings(X, Path, PathAcc) -> - with_path_acc(X, fun({Bindings, Edges}) -> {Bindings - 1, Edges} end, - Path, PathAcc). - -decrement_edges(X, Path, PathAcc) -> - with_path_acc(X, fun({Bindings, Edges}) -> {Bindings, Edges - 1} end, - Path, PathAcc). - -with_path_acc(_X, _Fun, [{root, none}], PathAcc) -> - PathAcc; -with_path_acc(X, Fun, [{Node, _} | ParentPath], PathAcc) -> - {Parent, W, Counts} = gb_trees:get(Node, PathAcc), - NewCounts = Fun(Counts), - NewPathAcc = gb_trees:update(Node, {Parent, W, NewCounts}, PathAcc), - case NewCounts of - {0, 0} -> decrement_edges(X, ParentPath, - maybe_add_path(X, ParentPath, NewPathAcc)); - _ -> NewPathAcc - end. - - -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). - -%%---------------------------------------------------------------------------- - -internal_add_binding(#binding{source = X, key = K, destination = D}) -> - FinalNode = follow_down_create(X, split_topic_key(K)), - trie_add_binding(X, FinalNode, D), - ok. - -trie_match(X, Words) -> - trie_match(X, root, Words, []). - -trie_match(X, Node, [], ResAcc) -> - trie_match_part(X, Node, "#", fun trie_match_skip_any/4, [], - trie_bindings(X, Node) ++ ResAcc); -trie_match(X, Node, [W | RestW] = Words, ResAcc) -> - lists:foldl(fun ({WArg, MatchFun, RestWArg}, Acc) -> - trie_match_part(X, Node, WArg, MatchFun, RestWArg, Acc) - end, ResAcc, [{W, fun trie_match/4, RestW}, - {"*", fun trie_match/4, RestW}, - {"#", fun trie_match_skip_any/4, Words}]). - -trie_match_part(X, Node, Search, MatchFun, RestW, ResAcc) -> - case trie_child(X, Node, Search) of - {ok, NextNode} -> MatchFun(X, NextNode, RestW, ResAcc); - error -> ResAcc - end. - -trie_match_skip_any(X, Node, [], ResAcc) -> - trie_match(X, Node, [], ResAcc); -trie_match_skip_any(X, Node, [_ | RestW] = Words, ResAcc) -> - trie_match_skip_any(X, Node, RestW, - trie_match(X, Node, Words, ResAcc)). - -follow_down_create(X, Words) -> - case follow_down_last_node(X, Words) of - {ok, FinalNode} -> FinalNode; - {error, Node, RestW} -> lists:foldl( - fun (W, CurNode) -> - NewNode = new_node_id(), - trie_add_edge(X, CurNode, NewNode, W), - NewNode - end, Node, RestW) - end. - -follow_down_last_node(X, Words) -> - follow_down(X, fun (_, Node, _) -> Node end, root, Words). - -follow_down_get_path(X, Words) -> - {ok, Path} = - follow_down(X, fun (W, Node, PathAcc) -> [{Node, W} | PathAcc] end, - [{root, none}], Words), - Path. - -follow_down(X, AccFun, Acc0, Words) -> - follow_down(X, root, AccFun, Acc0, Words). - -follow_down(_X, _CurNode, _AccFun, Acc, []) -> - {ok, Acc}; -follow_down(X, CurNode, AccFun, Acc, Words = [W | RestW]) -> - case trie_child(X, CurNode, W) of - {ok, NextNode} -> follow_down(X, NextNode, AccFun, - AccFun(W, NextNode, Acc), RestW); - error -> {error, Acc, Words} - end. - -trie_child(X, Node, Word) -> - case mnesia:read({rabbit_topic_trie_edge, - #trie_edge{exchange_name = X, - node_id = Node, - word = Word}}) of - [#topic_trie_edge{node_id = NextNode}] -> {ok, NextNode}; - [] -> error - end. - -trie_bindings(X, Node) -> - MatchHead = #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = '$1'}}, - mnesia:select(rabbit_topic_trie_binding, [{MatchHead, [], ['$1']}]). - -trie_add_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:write/3). - -trie_remove_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:delete_object/3). - -trie_edge_op(X, FromNode, ToNode, W, Op) -> - ok = Op(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = FromNode, - word = W}, - node_id = ToNode}, - write). - -trie_add_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:write/3). - -trie_remove_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:delete_object/3). - -trie_binding_op(X, Node, D, Op) -> - ok = Op(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = D}}, - write). - -trie_child_count(X, Node) -> - count(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -trie_binding_count(X, Node) -> - count(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -count(Table, Match) -> - length(mnesia:match_object(Table, Match, read)). - -trie_remove_all_edges(X) -> - remove_all(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - _ = '_'}, - _ = '_'}). - -trie_remove_all_bindings(X) -> - remove_all(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, _ = '_'}, - _ = '_'}). - -remove_all(Table, Pattern) -> - lists:foreach(fun (R) -> mnesia:delete_object(Table, R, write) end, - mnesia:match_object(Table, Pattern, write)). - -new_node_id() -> - rabbit_guid:guid(). - -split_topic_key(Key) -> - split_topic_key(Key, [], []). - -split_topic_key(<<>>, [], []) -> - []; -split_topic_key(<<>>, RevWordAcc, RevResAcc) -> - lists:reverse([lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<<$., Rest/binary>>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [], [lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [C | RevWordAcc], RevResAcc). - diff --git a/src/rabbit_framing.erl b/src/rabbit_framing.erl deleted file mode 100644 index da1a6a49..00000000 --- a/src/rabbit_framing.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% TODO auto-generate - --module(rabbit_framing). - --ifdef(use_specs). - --export_type([protocol/0, - amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(protocol() :: 'rabbit_framing_amqp_0_8' | 'rabbit_framing_amqp_0_9_1'). - --define(protocol_type(T), type(T :: rabbit_framing_amqp_0_8:T | - rabbit_framing_amqp_0_9_1:T)). - --?protocol_type(amqp_field_type()). --?protocol_type(amqp_property_type()). --?protocol_type(amqp_table()). --?protocol_type(amqp_array()). --?protocol_type(amqp_value()). --?protocol_type(amqp_method_name()). --?protocol_type(amqp_method()). --?protocol_type(amqp_method_record()). --?protocol_type(amqp_method_field_name()). --?protocol_type(amqp_property_record()). --?protocol_type(amqp_exception()). --?protocol_type(amqp_exception_code()). --?protocol_type(amqp_class_id()). - --endif. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl deleted file mode 100644 index 234bc55b..00000000 --- a/src/rabbit_guid.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_guid). - --behaviour(gen_server). - --export([start_link/0]). --export([guid/0, string_guid/1, binstring_guid/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_serial"). - --record(state, {serial}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([guid/0]). - --type(guid() :: binary()). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(guid/0 :: () -> guid()). --spec(string_guid/1 :: (any()) -> string()). --spec(binstring_guid/1 :: (any()) -> binary()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(rabbit_mnesia:dir(), ?SERIAL_FILENAME), - Serial = case rabbit_misc:read_term_file(Filename) of - {ok, [Num]} -> Num; - {error, enoent} -> 0; - {error, Reason} -> - throw({error, {cannot_read_serial_file, Filename, Reason}}) - end, - case rabbit_misc:write_term_file(Filename, [Serial + 1]) of - ok -> ok; - {error, Reason1} -> - throw({error, {cannot_write_serial_file, Filename, Reason1}}) - end, - Serial. - -%% generate a GUID. -%% -%% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. -guid() -> - %% We don't use erlang:now() here because a) it may return - %% duplicates when the system clock has been rewound prior to a - %% restart, or ids were generated at a high rate (which causes - %% now() to move ahead of the system time), and b) it is really - %% slow since it takes a global lock and makes a system call. - %% - %% A persisted serial number, in combination with self/0 (which - %% includes the node name) uniquely identifies a process in space - %% and time. We combine that with a process-local counter to give - %% us a GUID. - G = case get(guid) of - undefined -> {{gen_server:call(?SERVER, serial, infinity), self()}, - 0}; - {S, I} -> {S, I+1} - end, - put(guid, G), - erlang:md5(term_to_binary(G)). - -%% generate a readable string representation of a GUID. -string_guid(Prefix) -> - Prefix ++ "-" ++ base64:encode_to_string(guid()). - -binstring_guid(Prefix) -> - list_to_binary(string_guid(Prefix)). - -%%---------------------------------------------------------------------------- - -init([Serial]) -> - {ok, #state{serial = Serial}}. - -handle_call(serial, _From, State = #state{serial = Serial}) -> - {reply, Serial, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_heartbeat.erl b/src/rabbit_heartbeat.erl deleted file mode 100644 index 177ae868..00000000 --- a/src/rabbit_heartbeat.erl +++ /dev/null @@ -1,149 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_heartbeat). - --export([start_heartbeat_sender/3, start_heartbeat_receiver/3, - start_heartbeat_fun/1, pause_monitor/1, resume_monitor/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([heartbeaters/0]). --export_type([start_heartbeat_fun/0]). - --type(heartbeaters() :: {rabbit_types:maybe(pid()), rabbit_types:maybe(pid())}). - --type(heartbeat_callback() :: fun (() -> any())). - --type(start_heartbeat_fun() :: - fun((rabbit_net:socket(), non_neg_integer(), heartbeat_callback(), - non_neg_integer(), heartbeat_callback()) -> - no_return())). - --spec(start_heartbeat_sender/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). --spec(start_heartbeat_receiver/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). - --spec(start_heartbeat_fun/1 :: - (pid()) -> start_heartbeat_fun()). - - --spec(pause_monitor/1 :: (heartbeaters()) -> 'ok'). --spec(resume_monitor/1 :: (heartbeaters()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_heartbeat_sender(Sock, TimeoutSec, SendFun) -> - %% the 'div 2' is there so that we don't end up waiting for nearly - %% 2 * TimeoutSec before sending a heartbeat in the boundary case - %% where the last message was sent just after a heartbeat. - heartbeater( - {Sock, TimeoutSec * 1000 div 2, send_oct, 0, - fun () -> - SendFun(), - continue - end}). - -start_heartbeat_receiver(Sock, TimeoutSec, ReceiveFun) -> - %% we check for incoming data every interval, and time out after - %% two checks with no change. As a result we will time out between - %% 2 and 3 intervals after the last data has been received. - heartbeater({Sock, TimeoutSec * 1000, recv_oct, 1, fun () -> - ReceiveFun(), - stop - end}). - -start_heartbeat_fun(SupPid) -> - fun (Sock, SendTimeoutSec, SendFun, ReceiveTimeoutSec, ReceiveFun) -> - {ok, Sender} = - start_heartbeater(SendTimeoutSec, SupPid, Sock, - SendFun, heartbeat_sender, - start_heartbeat_sender), - {ok, Receiver} = - start_heartbeater(ReceiveTimeoutSec, SupPid, Sock, - ReceiveFun, heartbeat_receiver, - start_heartbeat_receiver), - {Sender, Receiver} - end. - -pause_monitor({_Sender, none}) -> - ok; -pause_monitor({_Sender, Receiver}) -> - Receiver ! pause, - ok. - -resume_monitor({_Sender, none}) -> - ok; -resume_monitor({_Sender, Receiver}) -> - Receiver ! resume, - ok. - -%%---------------------------------------------------------------------------- -start_heartbeater(0, _SupPid, _Sock, _TimeoutFun, _Name, _Callback) -> - {ok, none}; -start_heartbeater(TimeoutSec, SupPid, Sock, TimeoutFun, Name, Callback) -> - supervisor2:start_child( - SupPid, {Name, - {rabbit_heartbeat, Callback, - [Sock, TimeoutSec, TimeoutFun]}, - transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}). - -heartbeater(Params) -> - {ok, proc_lib:spawn_link(fun () -> heartbeater(Params, {0, 0}) end)}. - -heartbeater({Sock, TimeoutMillisec, StatName, Threshold, Handler} = Params, - {StatVal, SameCount}) -> - Recurse = fun (V) -> heartbeater(Params, V) end, - receive - pause -> - receive - resume -> - Recurse({0, 0}); - Other -> - exit({unexpected_message, Other}) - end; - Other -> - exit({unexpected_message, Other}) - after TimeoutMillisec -> - case rabbit_net:getstat(Sock, [StatName]) of - {ok, [{StatName, NewStatVal}]} -> - if NewStatVal =/= StatVal -> - Recurse({NewStatVal, 0}); - SameCount < Threshold -> - Recurse({NewStatVal, SameCount + 1}); - true -> - case Handler() of - stop -> ok; - continue -> Recurse({NewStatVal, 0}) - end - end; - {error, einval} -> - %% the socket is dead, most likely because the - %% connection is being shut down -> terminate - ok; - {error, Reason} -> - exit({cannot_get_socket_stats, Reason}) - end - end. diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl deleted file mode 100644 index 1b72dd76..00000000 --- a/src/rabbit_limiter.erl +++ /dev/null @@ -1,234 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_limiter). - --behaviour(gen_server2). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, prioritise_call/3]). --export([start_link/2]). --export([limit/2, can_send/3, ack/2, register/2, unregister/2]). --export([get_limit/1, block/1, unblock/1, is_blocked/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(maybe_pid() :: pid() | 'undefined'). - --spec(start_link/2 :: (pid(), non_neg_integer()) -> - rabbit_types:ok_pid_or_error()). --spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok' | 'stopped'). --spec(can_send/3 :: (maybe_pid(), pid(), boolean()) -> boolean()). --spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(get_limit/1 :: (maybe_pid()) -> non_neg_integer()). --spec(block/1 :: (maybe_pid()) -> 'ok'). --spec(unblock/1 :: (maybe_pid()) -> 'ok' | 'stopped'). --spec(is_blocked/1 :: (maybe_pid()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = dict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - -%%---------------------------------------------------------------------------- -%% API -%%---------------------------------------------------------------------------- - -start_link(ChPid, UnackedMsgCount) -> - gen_server2:start_link(?MODULE, [ChPid, UnackedMsgCount], []). - -limit(undefined, 0) -> - ok; -limit(LimiterPid, PrefetchCount) -> - gen_server2:call(LimiterPid, {limit, PrefetchCount}, infinity). - -%% Ask the limiter whether the queue can deliver a message without -%% breaching a limit -can_send(undefined, _QPid, _AckRequired) -> - true; -can_send(LimiterPid, QPid, AckRequired) -> - rabbit_misc:with_exit_handler( - fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, - infinity) end). - -%% Let the limiter know that the channel has received some acks from a -%% consumer -ack(undefined, _Count) -> ok; -ack(LimiterPid, Count) -> gen_server2:cast(LimiterPid, {ack, Count}). - -register(undefined, _QPid) -> ok; -register(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {register, QPid}). - -unregister(undefined, _QPid) -> ok; -unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}). - -get_limit(undefined) -> - 0; -get_limit(Pid) -> - rabbit_misc:with_exit_handler( - fun () -> 0 end, - fun () -> gen_server2:call(Pid, get_limit, infinity) end). - -block(undefined) -> - ok; -block(LimiterPid) -> - gen_server2:call(LimiterPid, block, infinity). - -unblock(undefined) -> - ok; -unblock(LimiterPid) -> - gen_server2:call(LimiterPid, unblock, infinity). - -is_blocked(undefined) -> - false; -is_blocked(LimiterPid) -> - gen_server2:call(LimiterPid, is_blocked, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([ChPid, UnackedMsgCount]) -> - {ok, #lim{ch_pid = ChPid, volume = UnackedMsgCount}}. - -prioritise_call(get_limit, _From, _State) -> 9; -prioritise_call(_Msg, _From, _State) -> 0. - -handle_call({can_send, _QPid, _AckRequired}, _From, - State = #lim{blocked = true}) -> - {reply, false, State}; -handle_call({can_send, QPid, AckRequired}, _From, - State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} - end; - -handle_call(get_limit, _From, State = #lim{prefetch_count = PrefetchCount}) -> - {reply, PrefetchCount, State}; - -handle_call({limit, PrefetchCount}, _From, State) -> - case maybe_notify(State, State#lim{prefetch_count = PrefetchCount}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(block, _From, State) -> - {reply, ok, State#lim{blocked = true}}; - -handle_call(unblock, _From, State) -> - case maybe_notify(State, State#lim{blocked = false}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(is_blocked, _From, State) -> - {reply, blocked(State), State}. - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {cont, State1} = maybe_notify(State, State#lim{volume = NewVolume}), - {noreply, State1}; - -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; - -handle_cast({unregister, QPid}, State) -> - {noreply, forget_queue(QPid, State)}. - -handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> - {noreply, forget_queue(QPid, State)}. - -terminate(_, _) -> - ok. - -code_change(_, State, _) -> - State. - -%%---------------------------------------------------------------------------- -%% Internal plumbing -%%---------------------------------------------------------------------------- - -maybe_notify(OldState, NewState) -> - case (limit_reached(OldState) orelse blocked(OldState)) andalso - not (limit_reached(NewState) orelse blocked(NewState)) of - true -> NewState1 = notify_queues(NewState), - {case NewState1#lim.prefetch_count of - 0 -> stop; - _ -> cont - end, NewState1}; - false -> {cont, NewState} - end. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -blocked(#lim{blocked = Blocked}) -> Blocked. - -remember_queue(QPid, State = #lim{queues = Queues}) -> - case dict:is_key(QPid, Queues) of - false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = dict:store(QPid, {MRef, false}, Queues)}; - true -> State - end. - -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> - case dict:find(QPid, Queues) of - {ok, {MRef, _}} -> - true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), - State#lim{queues = dict:erase(QPid, Queues)}; - error -> State - end. - -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, - State#lim{queues = dict:update(QPid, UpdateFun, Queues)}. - -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - dict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], dict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, - State#lim{queues = NewQueues}. diff --git a/src/rabbit_log.erl b/src/rabbit_log.erl deleted file mode 100644 index 8207d6bc..00000000 --- a/src/rabbit_log.erl +++ /dev/null @@ -1,132 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_log). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([debug/1, debug/2, message/4, info/1, info/2, - warning/1, warning/2, error/1, error/2]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(debug/1 :: (string()) -> 'ok'). --spec(debug/2 :: (string(), [any()]) -> 'ok'). --spec(info/1 :: (string()) -> 'ok'). --spec(info/2 :: (string(), [any()]) -> 'ok'). --spec(warning/1 :: (string()) -> 'ok'). --spec(warning/2 :: (string(), [any()]) -> 'ok'). --spec(error/1 :: (string()) -> 'ok'). --spec(error/2 :: (string(), [any()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -debug(Fmt) -> - gen_server:cast(?SERVER, {debug, Fmt}). - -debug(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {debug, Fmt, Args}). - -message(Direction, Channel, MethodRecord, Content) -> - gen_server:cast(?SERVER, - {message, Direction, Channel, MethodRecord, Content}). - -info(Fmt) -> - gen_server:cast(?SERVER, {info, Fmt}). - -info(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {info, Fmt, Args}). - -warning(Fmt) -> - gen_server:cast(?SERVER, {warning, Fmt}). - -warning(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {warning, Fmt, Args}). - -error(Fmt) -> - gen_server:cast(?SERVER, {error, Fmt}). - -error(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {error, Fmt, Args}). - -%%-------------------------------------------------------------------- - -init([]) -> {ok, none}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({debug, Fmt}, State) -> - io:format("debug:: "), io:format(Fmt), - error_logger:info_msg("debug:: " ++ Fmt), - {noreply, State}; -handle_cast({debug, Fmt, Args}, State) -> - io:format("debug:: "), io:format(Fmt, Args), - error_logger:info_msg("debug:: " ++ Fmt, Args), - {noreply, State}; -handle_cast({message, Direction, Channel, MethodRecord, Content}, State) -> - io:format("~s ch~p ~p~n", - [case Direction of - in -> "-->"; - out -> "<--" end, - Channel, - {MethodRecord, Content}]), - {noreply, State}; -handle_cast({info, Fmt}, State) -> - error_logger:info_msg(Fmt), - {noreply, State}; -handle_cast({info, Fmt, Args}, State) -> - error_logger:info_msg(Fmt, Args), - {noreply, State}; -handle_cast({warning, Fmt}, State) -> - error_logger:warning_msg(Fmt), - {noreply, State}; -handle_cast({warning, Fmt, Args}, State) -> - error_logger:warning_msg(Fmt, Args), - {noreply, State}; -handle_cast({error, Fmt}, State) -> - error_logger:error_msg(Fmt), - {noreply, State}; -handle_cast({error, Fmt, Args}, State) -> - error_logger:error_msg(Fmt, Args), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl deleted file mode 100644 index 996b0a98..00000000 --- a/src/rabbit_memory_monitor.erl +++ /dev/null @@ -1,280 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - -%% This module handles the node-wide memory statistics. -%% It receives statistics from all queues, counts the desired -%% queue length (in seconds), and sends this information back to -%% queues. - --module(rabbit_memory_monitor). - --behaviour(gen_server2). - --export([start_link/0, update/0, register/2, deregister/1, - report_ram_duration/2, stop/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(process, {pid, reported, sent, callback, monitor}). - --record(state, {timer, %% 'internal_update' timer - queue_durations, %% ets #process - queue_duration_sum, %% sum of all queue_durations - queue_duration_count, %% number of elements in sum - memory_limit, %% how much memory we intend to use - desired_duration %% the desired queue duration - }). - --define(SERVER, ?MODULE). --define(DEFAULT_UPDATE_INTERVAL, 2500). --define(TABLE_NAME, ?MODULE). - -%% Because we have a feedback loop here, we need to ensure that we -%% have some space for when the queues don't quite respond as fast as -%% we would like, or when there is buffering going on in other parts -%% of the system. In short, we aim to stay some distance away from -%% when the memory alarms will go off, which cause backpressure (of -%% some sort) on producers. Note that all other Thresholds are -%% relative to this scaling. --define(MEMORY_LIMIT_SCALING, 0.4). - --define(LIMIT_THRESHOLD, 0.5). %% don't limit queues when mem use is < this - -%% If all queues are pushed to disk (duration 0), then the sum of -%% their reported lengths will be 0. If memory then becomes available, -%% unless we manually intervene, the sum will remain 0, and the queues -%% will never get a non-zero duration. Thus when the mem use is < -%% SUM_INC_THRESHOLD, increase the sum artificially by SUM_INC_AMOUNT. --define(SUM_INC_THRESHOLD, 0.95). --define(SUM_INC_AMOUNT, 1.0). - -%% If user disabled vm_memory_monitor, let's assume 1GB of memory we can use. --define(MEMORY_SIZE_FOR_DISABLED_VMM, 1073741824). - --define(EPSILON, 0.000001). %% less than this and we clamp to 0 - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(update/0 :: () -> 'ok'). --spec(register/2 :: (pid(), {atom(),atom(),[any()]}) -> 'ok'). --spec(deregister/1 :: (pid()) -> 'ok'). --spec(report_ram_duration/2 :: - (pid(), float() | 'infinity') -> number() | 'infinity'). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -update() -> - gen_server2:cast(?SERVER, update). - -register(Pid, MFA = {_M, _F, _A}) -> - gen_server2:call(?SERVER, {register, Pid, MFA}, infinity). - -deregister(Pid) -> - gen_server2:cast(?SERVER, {deregister, Pid}). - -report_ram_duration(Pid, QueueDuration) -> - gen_server2:call(?SERVER, - {report_ram_duration, Pid, QueueDuration}, infinity). - -stop() -> - gen_server2:cast(?SERVER, stop). - -%%---------------------------------------------------------------------------- -%% Gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - MemoryLimit = trunc(?MEMORY_LIMIT_SCALING * - (try - vm_memory_monitor:get_memory_limit() - catch - exit:{noproc, _} -> ?MEMORY_SIZE_FOR_DISABLED_VMM - end)), - - {ok, TRef} = timer:apply_interval(?DEFAULT_UPDATE_INTERVAL, - ?SERVER, update, []), - - Ets = ets:new(?TABLE_NAME, [set, private, {keypos, #process.pid}]), - - {ok, internal_update( - #state { timer = TRef, - queue_durations = Ets, - queue_duration_sum = 0.0, - queue_duration_count = 0, - memory_limit = MemoryLimit, - desired_duration = infinity })}. - -handle_call({report_ram_duration, Pid, QueueDuration}, From, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations, - desired_duration = SendDuration }) -> - - [Proc = #process { reported = PrevQueueDuration }] = - ets:lookup(Durations, Pid), - - gen_server2:reply(From, SendDuration), - - {Sum1, Count1} = - case {PrevQueueDuration, QueueDuration} of - {infinity, infinity} -> {Sum, Count}; - {infinity, _} -> {Sum + QueueDuration, Count + 1}; - {_, infinity} -> {Sum - PrevQueueDuration, Count - 1}; - {_, _} -> {Sum - PrevQueueDuration + QueueDuration, - Count} - end, - true = ets:insert(Durations, Proc #process { reported = QueueDuration, - sent = SendDuration }), - {noreply, State #state { queue_duration_sum = zero_clamp(Sum1), - queue_duration_count = Count1 }}; - -handle_call({register, Pid, MFA}, _From, - State = #state { queue_durations = Durations }) -> - MRef = erlang:monitor(process, Pid), - true = ets:insert(Durations, #process { pid = Pid, reported = infinity, - sent = infinity, callback = MFA, - monitor = MRef }), - {reply, ok, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast({deregister, Pid}, State) -> - {noreply, internal_deregister(Pid, true, State)}; - -handle_cast(stop, State) -> - {stop, normal, State}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, State) -> - {noreply, internal_deregister(Pid, false, State)}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state { timer = TRef }) -> - timer:cancel(TRef), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -zero_clamp(Sum) -> - case Sum < ?EPSILON of - true -> 0.0; - false -> Sum - end. - -internal_deregister(Pid, Demonitor, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations }) -> - case ets:lookup(Durations, Pid) of - [] -> State; - [#process { reported = PrevQueueDuration, monitor = MRef }] -> - true = case Demonitor of - true -> erlang:demonitor(MRef); - false -> true - end, - {Sum1, Count1} = - case PrevQueueDuration of - infinity -> {Sum, Count}; - _ -> {zero_clamp(Sum - PrevQueueDuration), - Count - 1} - end, - true = ets:delete(Durations, Pid), - State #state { queue_duration_sum = Sum1, - queue_duration_count = Count1 } - end. - -internal_update(State = #state { memory_limit = Limit, - queue_durations = Durations, - desired_duration = DesiredDurationAvg, - queue_duration_sum = Sum, - queue_duration_count = Count }) -> - MemoryRatio = erlang:memory(total) / Limit, - DesiredDurationAvg1 = - case MemoryRatio < ?LIMIT_THRESHOLD orelse Count == 0 of - true -> - infinity; - false -> - Sum1 = case MemoryRatio < ?SUM_INC_THRESHOLD of - true -> Sum + ?SUM_INC_AMOUNT; - false -> Sum - end, - (Sum1 / Count) / MemoryRatio - end, - State1 = State #state { desired_duration = DesiredDurationAvg1 }, - - %% only inform queues immediately if the desired duration has - %% decreased - case DesiredDurationAvg1 == infinity orelse - (DesiredDurationAvg /= infinity andalso - DesiredDurationAvg1 >= DesiredDurationAvg) of - true -> - ok; - false -> - true = - ets:foldl( - fun (Proc = #process { reported = QueueDuration, - sent = PrevSendDuration, - callback = {M, F, A} }, true) -> - case (case {QueueDuration, PrevSendDuration} of - {infinity, infinity} -> - true; - {infinity, D} -> - DesiredDurationAvg1 < D; - {D, infinity} -> - DesiredDurationAvg1 < D; - {D1, D2} -> - DesiredDurationAvg1 < - lists:min([D1,D2]) - end) of - true -> - ok = erlang:apply( - M, F, A ++ [DesiredDurationAvg1]), - ets:insert( - Durations, - Proc #process {sent = DesiredDurationAvg1}); - false -> - true - end - end, true, Durations) - end, - State1. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl deleted file mode 100644 index 2e9563cf..00000000 --- a/src/rabbit_misc.erl +++ /dev/null @@ -1,873 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_misc). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --include_lib("kernel/include/file.hrl"). - --export([method_record_type/1, polite_pause/0, polite_pause/1]). --export([die/1, frame_error/2, amqp_error/4, - protocol_error/3, protocol_error/4, protocol_error/1]). --export([not_found/1, assert_args_equivalence/4]). --export([dirty_read/1]). --export([table_lookup/2]). --export([r/3, r/2, r_arg/4, rs/1]). --export([enable_cover/0, report_cover/0]). --export([enable_cover/1, report_cover/1]). --export([start_cover/1]). --export([throw_on_error/2, with_exit_handler/2, filter_exit_map/2]). --export([with_user/2, with_user_and_vhost/3]). --export([execute_mnesia_transaction/1]). --export([execute_mnesia_transaction/2]). --export([execute_mnesia_tx_with_tail/1]). --export([ensure_ok/2]). --export([makenode/1, nodeparts/1, cookie_hash/0, tcp_name/3]). --export([upmap/2, map_in_order/2]). --export([table_fold/3]). --export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). --export([read_term_file/1, write_term_file/2]). --export([append_file/2, ensure_parent_dirs_exist/1]). --export([format_stderr/2]). --export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, queue_fold/3]). --export([sort_field_table/1]). --export([pid_to_string/1, string_to_pid/1]). --export([version_compare/2, version_compare/3]). --export([recursive_delete/1, recursive_copy/2, dict_cons/3, orddict_cons/3, - unlink_and_capture_exit/1]). --export([get_options/2]). --export([all_module_attributes/1, build_acyclic_graph/3]). --export([now_ms/0]). --export([lock_file/1]). --export([const_ok/1, const/1]). --export([ntoa/1, ntoab/1]). --export([is_process_alive/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([resource_name/0, thunk/1, const/1]). - --type(ok_or_error() :: rabbit_types:ok_or_error(any())). --type(thunk(T) :: fun(() -> T)). --type(const(T) :: fun((any()) -> T)). --type(resource_name() :: binary()). --type(optdef() :: {flag, string()} | {option, string(), any()}). --type(channel_or_connection_exit() - :: rabbit_types:channel_exit() | rabbit_types:connection_exit()). --type(digraph_label() :: term()). --type(graph_vertex_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph_label()}])). --type(graph_edge_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph:vertex()}])). - --spec(method_record_type/1 :: (rabbit_framing:amqp_method_record()) - -> rabbit_framing:amqp_method_name()). --spec(polite_pause/0 :: () -> 'done'). --spec(polite_pause/1 :: (non_neg_integer()) -> 'done'). --spec(die/1 :: - (rabbit_framing:amqp_exception()) -> channel_or_connection_exit()). --spec(frame_error/2 :: (rabbit_framing:amqp_method_name(), binary()) - -> rabbit_types:connection_exit()). --spec(amqp_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) - -> rabbit_types:amqp_error()). --spec(protocol_error/3 :: (rabbit_framing:amqp_exception(), string(), [any()]) - -> channel_or_connection_exit()). --spec(protocol_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) -> channel_or_connection_exit()). --spec(protocol_error/1 :: - (rabbit_types:amqp_error()) -> channel_or_connection_exit()). --spec(not_found/1 :: (rabbit_types:r(atom())) -> rabbit_types:channel_exit()). --spec(assert_args_equivalence/4 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table(), - rabbit_types:r(any()), [binary()]) -> - 'ok' | rabbit_types:connection_exit()). --spec(dirty_read/1 :: - ({atom(), any()}) -> rabbit_types:ok_or_error2(any(), 'not_found')). --spec(table_lookup/2 :: - (rabbit_framing:amqp_table(), binary()) - -> 'undefined' | {rabbit_framing:amqp_field_type(), any()}). --spec(r/2 :: (rabbit_types:vhost(), K) - -> rabbit_types:r3(rabbit_types:vhost(), K, '_') - when is_subtype(K, atom())). --spec(r/3 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, resource_name()) - -> rabbit_types:r3(rabbit_types:vhost(), K, resource_name()) - when is_subtype(K, atom())). --spec(r_arg/4 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, - rabbit_framing:amqp_table(), binary()) - -> undefined | rabbit_types:r(K) - when is_subtype(K, atom())). --spec(rs/1 :: (rabbit_types:r(atom())) -> string()). --spec(enable_cover/0 :: () -> ok_or_error()). --spec(start_cover/1 :: ([{string(), string()} | string()]) -> 'ok'). --spec(report_cover/0 :: () -> 'ok'). --spec(enable_cover/1 :: ([file:filename() | atom()]) -> ok_or_error()). --spec(report_cover/1 :: ([file:filename() | atom()]) -> 'ok'). --spec(throw_on_error/2 :: - (atom(), thunk(rabbit_types:error(any()) | {ok, A} | A)) -> A). --spec(with_exit_handler/2 :: (thunk(A), thunk(A)) -> A). --spec(filter_exit_map/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(with_user/2 :: (rabbit_types:username(), thunk(A)) -> A). --spec(with_user_and_vhost/3 :: - (rabbit_types:username(), rabbit_types:vhost(), thunk(A)) - -> A). --spec(execute_mnesia_transaction/1 :: (thunk(A)) -> A). --spec(execute_mnesia_transaction/2 :: - (thunk(A), fun ((A, boolean()) -> B)) -> B). --spec(execute_mnesia_tx_with_tail/1 :: - (thunk(fun ((boolean()) -> B))) -> B | (fun ((boolean()) -> B))). --spec(ensure_ok/2 :: (ok_or_error(), atom()) -> 'ok'). --spec(makenode/1 :: ({string(), string()} | string()) -> node()). --spec(nodeparts/1 :: (node() | string()) -> {string(), string()}). --spec(cookie_hash/0 :: () -> string()). --spec(tcp_name/3 :: - (atom(), inet:ip_address(), rabbit_networking:ip_port()) - -> atom()). --spec(upmap/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(map_in_order/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(table_fold/3 :: (fun ((any(), A) -> A), A, atom()) -> A). --spec(dirty_read_all/1 :: (atom()) -> [any()]). --spec(dirty_foreach_key/2 :: (fun ((any()) -> any()), atom()) - -> 'ok' | 'aborted'). --spec(dirty_dump_log/1 :: (file:filename()) -> ok_or_error()). --spec(read_term_file/1 :: - (file:filename()) -> {'ok', [any()]} | rabbit_types:error(any())). --spec(write_term_file/2 :: (file:filename(), [any()]) -> ok_or_error()). --spec(append_file/2 :: (file:filename(), string()) -> ok_or_error()). --spec(ensure_parent_dirs_exist/1 :: (string()) -> 'ok'). --spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). --spec(start_applications/1 :: ([atom()]) -> 'ok'). --spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> integer()). --spec(queue_fold/3 :: (fun ((any(), B) -> B), B, queue()) -> B). --spec(sort_field_table/1 :: - (rabbit_framing:amqp_table()) -> rabbit_framing:amqp_table()). --spec(pid_to_string/1 :: (pid()) -> string()). --spec(string_to_pid/1 :: (string()) -> pid()). --spec(version_compare/2 :: (string(), string()) -> 'lt' | 'eq' | 'gt'). --spec(version_compare/3 :: - (string(), string(), ('lt' | 'lte' | 'eq' | 'gte' | 'gt')) - -> boolean()). --spec(recursive_delete/1 :: - ([file:filename()]) - -> rabbit_types:ok_or_error({file:filename(), any()})). --spec(recursive_copy/2 :: - (file:filename(), file:filename()) - -> rabbit_types:ok_or_error({file:filename(), file:filename(), any()})). --spec(dict_cons/3 :: (any(), any(), dict()) -> dict()). --spec(orddict_cons/3 :: (any(), any(), orddict:orddict()) -> orddict:orddict()). --spec(unlink_and_capture_exit/1 :: (pid()) -> 'ok'). --spec(get_options/2 :: ([optdef()], [string()]) - -> {[string()], [{string(), any()}]}). --spec(all_module_attributes/1 :: (atom()) -> [{atom(), [term()]}]). --spec(build_acyclic_graph/3 :: - (graph_vertex_fun(), graph_edge_fun(), [{atom(), [term()]}]) - -> rabbit_types:ok_or_error2(digraph(), - {'vertex', 'duplicate', digraph:vertex()} | - {'edge', ({bad_vertex, digraph:vertex()} | - {bad_edge, [digraph:vertex()]}), - digraph:vertex(), digraph:vertex()})). --spec(now_ms/0 :: () -> non_neg_integer()). --spec(lock_file/1 :: (file:filename()) -> rabbit_types:ok_or_error('eexist')). --spec(const_ok/1 :: (any()) -> 'ok'). --spec(const/1 :: (A) -> const(A)). --spec(ntoa/1 :: (inet:ip_address()) -> string()). --spec(ntoab/1 :: (inet:ip_address()) -> string()). --spec(is_process_alive/1 :: (pid()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - -method_record_type(Record) -> - element(1, Record). - -polite_pause() -> - polite_pause(3000). - -polite_pause(N) -> - receive - after N -> done - end. - -die(Error) -> - protocol_error(Error, "~w", [Error]). - -frame_error(MethodName, BinaryFields) -> - protocol_error(frame_error, "cannot decode ~w", [BinaryFields], MethodName). - -amqp_error(Name, ExplanationFormat, Params, Method) -> - Explanation = lists:flatten(io_lib:format(ExplanationFormat, Params)), - #amqp_error{name = Name, explanation = Explanation, method = Method}. - -protocol_error(Name, ExplanationFormat, Params) -> - protocol_error(Name, ExplanationFormat, Params, none). - -protocol_error(Name, ExplanationFormat, Params, Method) -> - protocol_error(amqp_error(Name, ExplanationFormat, Params, Method)). - -protocol_error(#amqp_error{} = Error) -> - exit(Error). - -not_found(R) -> protocol_error(not_found, "no ~s", [rs(R)]). - -assert_args_equivalence(Orig, New, Name, Keys) -> - [assert_args_equivalence1(Orig, New, Name, Key) || Key <- Keys], - ok. - -assert_args_equivalence1(Orig, New, Name, Key) -> - case {table_lookup(Orig, Key), table_lookup(New, Key)} of - {Same, Same} -> ok; - {Orig1, New1} -> protocol_error( - precondition_failed, - "inequivalent arg '~s' for ~s: " - "received ~s but current is ~s", - [Key, rs(Name), val(New1), val(Orig1)]) - end. - -val(undefined) -> - "none"; -val({Type, Value}) -> - Fmt = case is_binary(Value) of - true -> "the value '~s' of type '~s'"; - false -> "the value '~w' of type '~s'" - end, - lists:flatten(io_lib:format(Fmt, [Value, Type])). - -dirty_read(ReadSpec) -> - case mnesia:dirty_read(ReadSpec) of - [Result] -> {ok, Result}; - [] -> {error, not_found} - end. - -table_lookup(Table, Key) -> - case lists:keysearch(Key, 1, Table) of - {value, {_, TypeBin, ValueBin}} -> {TypeBin, ValueBin}; - false -> undefined - end. - -r(#resource{virtual_host = VHostPath}, Kind, Name) - when is_binary(Name) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}; -r(VHostPath, Kind, Name) when is_binary(Name) andalso is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}. - -r(VHostPath, Kind) when is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = '_'}. - -r_arg(#resource{virtual_host = VHostPath}, Kind, Table, Key) -> - r_arg(VHostPath, Kind, Table, Key); -r_arg(VHostPath, Kind, Table, Key) -> - case table_lookup(Table, Key) of - {longstr, NameBin} -> r(VHostPath, Kind, NameBin); - undefined -> undefined - end. - -rs(#resource{virtual_host = VHostPath, kind = Kind, name = Name}) -> - lists:flatten(io_lib:format("~s '~s' in vhost '~s'", - [Kind, Name, VHostPath])). - -enable_cover() -> enable_cover(["."]). - -enable_cover(Dirs) -> - lists:foldl(fun (Dir, ok) -> - case cover:compile_beam_directory( - filename:join(lists:concat([Dir]),"ebin")) of - {error, _} = Err -> Err; - _ -> ok - end; - (_Dir, Err) -> - Err - end, ok, Dirs). - -start_cover(NodesS) -> - {ok, _} = cover:start([makenode(N) || N <- NodesS]), - ok. - -report_cover() -> report_cover(["."]). - -report_cover(Dirs) -> [report_cover1(lists:concat([Dir])) || Dir <- Dirs], ok. - -report_cover1(Root) -> - Dir = filename:join(Root, "cover"), - ok = filelib:ensure_dir(filename:join(Dir, "junk")), - lists:foreach(fun (F) -> file:delete(F) end, - filelib:wildcard(filename:join(Dir, "*.html"))), - {ok, SummaryFile} = file:open(filename:join(Dir, "summary.txt"), [write]), - {CT, NCT} = - lists:foldl( - fun (M,{CovTot, NotCovTot}) -> - {ok, {M, {Cov, NotCov}}} = cover:analyze(M, module), - ok = report_coverage_percentage(SummaryFile, - Cov, NotCov, M), - {ok,_} = cover:analyze_to_file( - M, - filename:join(Dir, atom_to_list(M) ++ ".html"), - [html]), - {CovTot+Cov, NotCovTot+NotCov} - end, - {0, 0}, - lists:sort(cover:modules())), - ok = report_coverage_percentage(SummaryFile, CT, NCT, 'TOTAL'), - ok = file:close(SummaryFile), - ok. - -report_coverage_percentage(File, Cov, NotCov, Mod) -> - io:fwrite(File, "~6.2f ~p~n", - [if - Cov+NotCov > 0 -> 100.0*Cov/(Cov+NotCov); - true -> 100.0 - end, - Mod]). - -throw_on_error(E, Thunk) -> - case Thunk() of - {error, Reason} -> throw({E, Reason}); - {ok, Res} -> Res; - Res -> Res - end. - -with_exit_handler(Handler, Thunk) -> - try - Thunk() - catch - exit:{R, _} when R =:= noproc; R =:= nodedown; - R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - Handler() - end. - -filter_exit_map(F, L) -> - Ref = make_ref(), - lists:filter(fun (R) -> R =/= Ref end, - [with_exit_handler( - fun () -> Ref end, - fun () -> F(I) end) || I <- L]). - -with_user(Username, Thunk) -> - fun () -> - case mnesia:read({rabbit_user, Username}) of - [] -> - mnesia:abort({no_such_user, Username}); - [_U] -> - Thunk() - end - end. - -with_user_and_vhost(Username, VHostPath, Thunk) -> - with_user(Username, rabbit_vhost:with(VHostPath, Thunk)). - -execute_mnesia_transaction(TxFun) -> - %% Making this a sync_transaction allows us to use dirty_read - %% elsewhere and get a consistent result even when that read - %% executes on a different node. - case worker_pool:submit({mnesia, sync_transaction, [TxFun]}) of - {atomic, Result} -> Result; - {aborted, Reason} -> throw({error, Reason}) - end. - - -%% Like execute_mnesia_transaction/1 with additional Pre- and Post- -%% commit function -execute_mnesia_transaction(TxFun, PrePostCommitFun) -> - case mnesia:is_transaction() of - true -> throw(unexpected_transaction); - false -> ok - end, - PrePostCommitFun(execute_mnesia_transaction( - fun () -> - Result = TxFun(), - PrePostCommitFun(Result, true), - Result - end), false). - -%% Like execute_mnesia_transaction/2, but TxFun is expected to return a -%% TailFun which gets called immediately before and after the tx commit -execute_mnesia_tx_with_tail(TxFun) -> - case mnesia:is_transaction() of - true -> execute_mnesia_transaction(TxFun); - false -> TailFun = execute_mnesia_transaction( - fun () -> - TailFun1 = TxFun(), - TailFun1(true), - TailFun1 - end), - TailFun(false) - end. - -ensure_ok(ok, _) -> ok; -ensure_ok({error, Reason}, ErrorTag) -> throw({error, {ErrorTag, Reason}}). - -makenode({Prefix, Suffix}) -> - list_to_atom(lists:append([Prefix, "@", Suffix])); -makenode(NodeStr) -> - makenode(nodeparts(NodeStr)). - -nodeparts(Node) when is_atom(Node) -> - nodeparts(atom_to_list(Node)); -nodeparts(NodeStr) -> - case lists:splitwith(fun (E) -> E =/= $@ end, NodeStr) of - {Prefix, []} -> {_, Suffix} = nodeparts(node()), - {Prefix, Suffix}; - {Prefix, Suffix} -> {Prefix, tl(Suffix)} - end. - -cookie_hash() -> - base64:encode_to_string(erlang:md5(atom_to_list(erlang:get_cookie()))). - -tcp_name(Prefix, IPAddress, Port) - when is_atom(Prefix) andalso is_number(Port) -> - list_to_atom( - lists:flatten( - io_lib:format("~w_~s:~w", - [Prefix, inet_parse:ntoa(IPAddress), Port]))). - -%% This is a modified version of Luke Gorrie's pmap - -%% http://lukego.livejournal.com/6753.html - that doesn't care about -%% the order in which results are received. -%% -%% WARNING: This is is deliberately lightweight rather than robust -- if F -%% throws, upmap will hang forever, so make sure F doesn't throw! -upmap(F, L) -> - Parent = self(), - Ref = make_ref(), - [receive {Ref, Result} -> Result end - || _ <- [spawn(fun () -> Parent ! {Ref, F(X)} end) || X <- L]]. - -map_in_order(F, L) -> - lists:reverse( - lists:foldl(fun (E, Acc) -> [F(E) | Acc] end, [], L)). - -%% Fold over each entry in a table, executing the cons function in a -%% transaction. This is often far more efficient than wrapping a tx -%% around the lot. -%% -%% We ignore entries that have been modified or removed. -table_fold(F, Acc0, TableName) -> - lists:foldl( - fun (E, Acc) -> execute_mnesia_transaction( - fun () -> case mnesia:match_object(TableName, E, read) of - [] -> Acc; - _ -> F(E, Acc) - end - end) - end, Acc0, dirty_read_all(TableName)). - -dirty_read_all(TableName) -> - mnesia:dirty_select(TableName, [{'$1',[],['$1']}]). - -dirty_foreach_key(F, TableName) -> - dirty_foreach_key1(F, TableName, mnesia:dirty_first(TableName)). - -dirty_foreach_key1(_F, _TableName, '$end_of_table') -> - ok; -dirty_foreach_key1(F, TableName, K) -> - case catch mnesia:dirty_next(TableName, K) of - {'EXIT', _} -> - aborted; - NextKey -> - F(K), - dirty_foreach_key1(F, TableName, NextKey) - end. - -dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, - {mode, read_only}, - {file, FileName}]), - dirty_dump_log1(LH, disk_log:chunk(LH, start)), - disk_log:close(LH). - -dirty_dump_log1(_LH, eof) -> - io:format("Done.~n"); -dirty_dump_log1(LH, {K, Terms}) -> - io:format("Chunk: ~p~n", [Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)); -dirty_dump_log1(LH, {K, Terms, BadBytes}) -> - io:format("Bad Chunk, ~p: ~p~n", [BadBytes, Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)). - - -read_term_file(File) -> file:consult(File). - -write_term_file(File, Terms) -> - file:write_file(File, list_to_binary([io_lib:format("~w.~n", [Term]) || - Term <- Terms])). - -append_file(File, Suffix) -> - case file:read_file_info(File) of - {ok, FInfo} -> append_file(File, FInfo#file_info.size, Suffix); - {error, enoent} -> append_file(File, 0, Suffix); - Error -> Error - end. - -append_file(_, _, "") -> - ok; -append_file(File, 0, Suffix) -> - case file:open([File, Suffix], [append]) of - {ok, Fd} -> file:close(Fd); - Error -> Error - end; -append_file(File, _, Suffix) -> - case file:read_file(File) of - {ok, Data} -> file:write_file([File, Suffix], Data, [append]); - Error -> Error - end. - -ensure_parent_dirs_exist(Filename) -> - case filelib:ensure_dir(Filename) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_parent_dirs, Filename, Reason}}) - end. - -format_stderr(Fmt, Args) -> - case os:type() of - {unix, _} -> - Port = open_port({fd, 0, 2}, [out]), - port_command(Port, io_lib:format(Fmt, Args)), - port_close(Port); - {win32, _} -> - %% stderr on Windows is buffered and I can't figure out a - %% way to trigger a fflush(stderr) in Erlang. So rather - %% than risk losing output we write to stdout instead, - %% which appears to be unbuffered. - io:format(Fmt, Args) - end, - ok. - -manage_applications(Iterate, Do, Undo, SkipError, ErrorTag, Apps) -> - Iterate(fun (App, Acc) -> - case Do(App) of - ok -> [App | Acc]; - {error, {SkipError, _}} -> Acc; - {error, Reason} -> - lists:foreach(Undo, Acc), - throw({error, {ErrorTag, App, Reason}}) - end - end, [], Apps), - ok. - -start_applications(Apps) -> - manage_applications(fun lists:foldl/3, - fun application:start/1, - fun application:stop/1, - already_started, - cannot_start_application, - Apps). - -stop_applications(Apps) -> - manage_applications(fun lists:foldr/3, - fun application:stop/1, - fun application:start/1, - not_started, - cannot_stop_application, - Apps). - -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N == T of - true -> T; - false -> 1 + T - end. - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -%% Sorts a list of AMQP table fields as per the AMQP spec -sort_field_table(Arguments) -> - lists:keysort(1, Arguments). - -%% This provides a string representation of a pid that is the same -%% regardless of what node we are running on. The representation also -%% permits easy identification of the pid's node. -pid_to_string(Pid) when is_pid(Pid) -> - %% see http://erlang.org/doc/apps/erts/erl_ext_dist.html (8.10 and - %% 8.7) - <<131,103,100,NodeLen:16,NodeBin:NodeLen/binary,Id:32,Ser:32,Cre:8>> - = term_to_binary(Pid), - Node = binary_to_term(<<131,100,NodeLen:16,NodeBin:NodeLen/binary>>), - lists:flatten(io_lib:format("<~w.~B.~B.~B>", [Node, Cre, Id, Ser])). - -%% inverse of above -string_to_pid(Str) -> - Err = {error, {invalid_pid_syntax, Str}}, - %% The \ before the trailing $ is only there to keep emacs - %% font-lock from getting confused. - case re:run(Str, "^<(.*)\\.(\\d+)\\.(\\d+)\\.(\\d+)>\$", - [{capture,all_but_first,list}]) of - {match, [NodeStr, CreStr, IdStr, SerStr]} -> - %% the NodeStr atom might be quoted, so we have to parse - %% it rather than doing a simple list_to_atom - NodeAtom = case erl_scan:string(NodeStr) of - {ok, [{atom, _, X}], _} -> X; - {error, _, _} -> throw(Err) - end, - <<131,NodeEnc/binary>> = term_to_binary(NodeAtom), - [Cre, Id, Ser] = lists:map(fun list_to_integer/1, - [CreStr, IdStr, SerStr]), - binary_to_term(<<131,103,NodeEnc/binary,Id:32,Ser:32,Cre:8>>); - nomatch -> - throw(Err) - end. - -version_compare(A, B, lte) -> - case version_compare(A, B) of - eq -> true; - lt -> true; - gt -> false - end; -version_compare(A, B, gte) -> - case version_compare(A, B) of - eq -> true; - gt -> true; - lt -> false - end; -version_compare(A, B, Result) -> - Result =:= version_compare(A, B). - -version_compare(A, A) -> - eq; -version_compare([], [$0 | B]) -> - version_compare([], dropdot(B)); -version_compare([], _) -> - lt; %% 2.3 < 2.3.1 -version_compare([$0 | A], []) -> - version_compare(dropdot(A), []); -version_compare(_, []) -> - gt; %% 2.3.1 > 2.3 -version_compare(A, B) -> - {AStr, ATl} = lists:splitwith(fun (X) -> X =/= $. end, A), - {BStr, BTl} = lists:splitwith(fun (X) -> X =/= $. end, B), - ANum = list_to_integer(AStr), - BNum = list_to_integer(BStr), - if ANum =:= BNum -> version_compare(dropdot(ATl), dropdot(BTl)); - ANum < BNum -> lt; - ANum > BNum -> gt - end. - -dropdot(A) -> lists:dropwhile(fun (X) -> X =:= $. end, A). - -recursive_delete(Files) -> - lists:foldl(fun (Path, ok ) -> recursive_delete1(Path); - (_Path, {error, _Err} = Error) -> Error - end, ok, Files). - -recursive_delete1(Path) -> - case filelib:is_dir(Path) of - false -> case file:delete(Path) of - ok -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Path, Err}} - end; - true -> case file:list_dir(Path) of - {ok, FileNames} -> - case lists:foldl( - fun (FileName, ok) -> - recursive_delete1( - filename:join(Path, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames) of - ok -> - case file:del_dir(Path) of - ok -> ok; - {error, Err} -> {error, {Path, Err}} - end; - {error, _Err} = Error -> - Error - end; - {error, Err} -> - {error, {Path, Err}} - end - end. - -recursive_copy(Src, Dest) -> - case filelib:is_dir(Src) of - false -> case file:copy(Src, Dest) of - {ok, _Bytes} -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Src, Dest, Err}} - end; - true -> case file:list_dir(Src) of - {ok, FileNames} -> - case file:make_dir(Dest) of - ok -> - lists:foldl( - fun (FileName, ok) -> - recursive_copy( - filename:join(Src, FileName), - filename:join(Dest, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames); - {error, Err} -> - {error, {Src, Dest, Err}} - end; - {error, Err} -> - {error, {Src, Dest, Err}} - end - end. - -dict_cons(Key, Value, Dict) -> - dict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -orddict_cons(Key, Value, Dict) -> - orddict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -unlink_and_capture_exit(Pid) -> - unlink(Pid), - receive {'EXIT', Pid, _} -> ok - after 0 -> ok - end. - -%% Separate flags and options from arguments. -%% get_options([{flag, "-q"}, {option, "-p", "/"}], -%% ["set_permissions","-p","/","guest", -%% "-q",".*",".*",".*"]) -%% == {["set_permissions","guest",".*",".*",".*"], -%% [{"-q",true},{"-p","/"}]} -get_options(Defs, As) -> - lists:foldl(fun(Def, {AsIn, RsIn}) -> - {AsOut, Value} = case Def of - {flag, Key} -> - get_flag(Key, AsIn); - {option, Key, Default} -> - get_option(Key, Default, AsIn) - end, - {AsOut, [{Key, Value} | RsIn]} - end, {As, []}, Defs). - -get_option(K, _Default, [K, V | As]) -> - {As, V}; -get_option(K, Default, [Nk | As]) -> - {As1, V} = get_option(K, Default, As), - {[Nk | As1], V}; -get_option(_, Default, As) -> - {As, Default}. - -get_flag(K, [K | As]) -> - {As, true}; -get_flag(K, [Nk | As]) -> - {As1, V} = get_flag(K, As), - {[Nk | As1], V}; -get_flag(_, []) -> - {[], false}. - -now_ms() -> - timer:now_diff(now(), {0,0,0}) div 1000. - -module_attributes(Module) -> - case catch Module:module_info(attributes) of - {'EXIT', {undef, [{Module, module_info, _} | _]}} -> - io:format("WARNING: module ~p not found, so not scanned for boot steps.~n", - [Module]), - []; - {'EXIT', Reason} -> - exit(Reason); - V -> - V - end. - -all_module_attributes(Name) -> - Modules = - lists:usort( - lists:append( - [Modules || {App, _, _} <- application:loaded_applications(), - {ok, Modules} <- [application:get_key(App, modules)]])), - lists:foldl( - fun (Module, Acc) -> - case lists:append([Atts || {N, Atts} <- module_attributes(Module), - N =:= Name]) of - [] -> Acc; - Atts -> [{Module, Atts} | Acc] - end - end, [], Modules). - - -build_acyclic_graph(VertexFun, EdgeFun, Graph) -> - G = digraph:new([acyclic]), - try - [case digraph:vertex(G, Vertex) of - false -> digraph:add_vertex(G, Vertex, Label); - _ -> ok = throw({graph_error, {vertex, duplicate, Vertex}}) - end || {Module, Atts} <- Graph, - {Vertex, Label} <- VertexFun(Module, Atts)], - [case digraph:add_edge(G, From, To) of - {error, E} -> throw({graph_error, {edge, E, From, To}}); - _ -> ok - end || {Module, Atts} <- Graph, - {From, To} <- EdgeFun(Module, Atts)], - {ok, G} - catch {graph_error, Reason} -> - true = digraph:delete(G), - {error, Reason} - end. - -%% TODO: When we stop supporting Erlang prior to R14, this should be -%% replaced with file:open [write, exclusive] -lock_file(Path) -> - case filelib:is_file(Path) of - true -> {error, eexist}; - false -> {ok, Lock} = file:open(Path, [write]), - ok = file:close(Lock) - end. - -const_ok(_) -> ok. -const(X) -> fun (_) -> X end. - -%% Format IPv4-mapped IPv6 addresses as IPv4, since they're what we see -%% when IPv6 is enabled but not used (i.e. 99% of the time). -ntoa({0,0,0,0,0,16#ffff,AB,CD}) -> - inet_parse:ntoa({AB bsr 8, AB rem 256, CD bsr 8, CD rem 256}); -ntoa(IP) -> - inet_parse:ntoa(IP). - -ntoab(IP) -> - Str = ntoa(IP), - case string:str(Str, ":") of - 0 -> Str; - _ -> "[" ++ Str ++ "]" - end. - -is_process_alive(Pid) when node(Pid) =:= node() -> - erlang:is_process_alive(Pid); -is_process_alive(Pid) -> - case rpc:call(node(Pid), erlang, is_process_alive, [Pid]) of - true -> true; - _ -> false - end. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl deleted file mode 100644 index fbcf07ae..00000000 --- a/src/rabbit_mnesia.erl +++ /dev/null @@ -1,650 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - --module(rabbit_mnesia). - --export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/1, force_cluster/1, reset/0, force_reset/0, init_db/3, - is_clustered/0, running_clustered_nodes/0, all_clustered_nodes/0, - empty_ram_only_tables/0, copy_db/1, wait_for_tables/1, - create_cluster_nodes_config/1, read_cluster_nodes_config/0, - record_running_nodes/0, read_previously_running_nodes/0, - delete_previously_running_nodes/0, running_nodes_filename/0]). - --export([table_names/0]). - -%% create_tables/0 exported for helping embed RabbitMQ in or alongside -%% other mnesia-using Erlang applications, such as ejabberd --export([create_tables/0]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([node_type/0]). - --type(node_type() :: disc_only | disc | ram | unknown). --spec(status/0 :: () -> [{'nodes', [{node_type(), [node()]}]} | - {'running_nodes', [node()]}]). --spec(dir/0 :: () -> file:filename()). --spec(ensure_mnesia_dir/0 :: () -> 'ok'). --spec(init/0 :: () -> 'ok'). --spec(init_db/3 :: ([node()], boolean(), rabbit_misc:thunk('ok')) -> 'ok'). --spec(is_db_empty/0 :: () -> boolean()). --spec(cluster/1 :: ([node()]) -> 'ok'). --spec(force_cluster/1 :: ([node()]) -> 'ok'). --spec(cluster/2 :: ([node()], boolean()) -> 'ok'). --spec(reset/0 :: () -> 'ok'). --spec(force_reset/0 :: () -> 'ok'). --spec(is_clustered/0 :: () -> boolean()). --spec(running_clustered_nodes/0 :: () -> [node()]). --spec(all_clustered_nodes/0 :: () -> [node()]). --spec(empty_ram_only_tables/0 :: () -> 'ok'). --spec(create_tables/0 :: () -> 'ok'). --spec(copy_db/1 :: (file:filename()) -> rabbit_types:ok_or_error(any())). --spec(wait_for_tables/1 :: ([atom()]) -> 'ok'). --spec(create_cluster_nodes_config/1 :: ([node()]) -> 'ok'). --spec(read_cluster_nodes_config/0 :: () -> [node()]). --spec(record_running_nodes/0 :: () -> 'ok'). --spec(read_previously_running_nodes/0 :: () -> [node()]). --spec(delete_previously_running_nodes/0 :: () -> 'ok'). --spec(running_nodes_filename/0 :: () -> file:filename()). - --endif. - -%%---------------------------------------------------------------------------- - -status() -> - [{nodes, case mnesia:system_info(is_running) of - yes -> [{Key, Nodes} || - {Key, CopyType} <- [{disc_only, disc_only_copies}, - {disc, disc_copies}, - {ram, ram_copies}], - begin - Nodes = nodes_of_type(CopyType), - Nodes =/= [] - end]; - no -> case all_clustered_nodes() of - [] -> []; - Nodes -> [{unknown, Nodes}] - end - end}, - {running_nodes, running_clustered_nodes()}]. - -init() -> - ensure_mnesia_running(), - ensure_mnesia_dir(), - ok = init_db(read_cluster_nodes_config(), true, - fun maybe_upgrade_local_or_record_desired/0), - ok. - -is_db_empty() -> - lists:all(fun (Tab) -> mnesia:dirty_first(Tab) == '$end_of_table' end, - table_names()). - -cluster(ClusterNodes) -> - cluster(ClusterNodes, false). -force_cluster(ClusterNodes) -> - cluster(ClusterNodes, true). - -%% Alter which disk nodes this node is clustered with. This can be a -%% subset of all the disk nodes in the cluster but can (and should) -%% include the node itself if it is to be a disk rather than a ram -%% node. If Force is false, only connections to online nodes are -%% allowed. -cluster(ClusterNodes, Force) -> - ensure_mnesia_not_running(), - ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - try - ok = init_db(ClusterNodes, Force, - fun maybe_upgrade_local_or_record_desired/0), - ok = create_cluster_nodes_config(ClusterNodes) - after - mnesia:stop() - end, - ok. - -%% return node to its virgin state, where it is not member of any -%% cluster, has no cluster configuration, no local database, and no -%% persisted messages -reset() -> reset(false). -force_reset() -> reset(true). - -is_clustered() -> - RunningNodes = running_clustered_nodes(), - [node()] /= RunningNodes andalso [] /= RunningNodes. - -all_clustered_nodes() -> - mnesia:system_info(db_nodes). - -running_clustered_nodes() -> - mnesia:system_info(running_db_nodes). - -empty_ram_only_tables() -> - Node = node(), - lists:foreach( - fun (TabName) -> - case lists:member(Node, mnesia:table_info(TabName, ram_copies)) of - true -> {atomic, ok} = mnesia:clear_table(TabName); - false -> ok - end - end, table_names()), - ok. - -%%-------------------------------------------------------------------- - -nodes_of_type(Type) -> - %% This function should return the nodes of a certain type (ram, - %% disc or disc_only) in the current cluster. The type of nodes - %% is determined when the cluster is initially configured. - %% Specifically, we check whether a certain table, which we know - %% will be written to disk on a disc node, is stored on disk or in - %% RAM. - mnesia:table_info(rabbit_durable_exchange, Type). - -table_definitions() -> - [{rabbit_user, - [{record_name, internal_user}, - {attributes, record_info(fields, internal_user)}, - {disc_copies, [node()]}, - {match, #internal_user{_='_'}}]}, - {rabbit_user_permission, - [{record_name, user_permission}, - {attributes, record_info(fields, user_permission)}, - {disc_copies, [node()]}, - {match, #user_permission{user_vhost = #user_vhost{_='_'}, - permission = #permission{_='_'}, - _='_'}}]}, - {rabbit_vhost, - [{record_name, vhost}, - {attributes, record_info(fields, vhost)}, - {disc_copies, [node()]}, - {match, #vhost{_='_'}}]}, - {rabbit_listener, - [{record_name, listener}, - {attributes, record_info(fields, listener)}, - {type, bag}, - {match, #listener{_='_'}}]}, - {rabbit_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {disc_copies, [node()]}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_reverse_route, - [{record_name, reverse_route}, - {attributes, record_info(fields, reverse_route)}, - {type, ordered_set}, - {match, #reverse_route{reverse_binding = reverse_binding_match(), - _='_'}}]}, - {rabbit_topic_trie_edge, - [{record_name, topic_trie_edge}, - {attributes, record_info(fields, topic_trie_edge)}, - {type, ordered_set}, - {match, #topic_trie_edge{trie_edge = trie_edge_match(), _='_'}}]}, - {rabbit_topic_trie_binding, - [{record_name, topic_trie_binding}, - {attributes, record_info(fields, topic_trie_binding)}, - {type, ordered_set}, - {match, #topic_trie_binding{trie_binding = trie_binding_match(), - _='_'}}]}, - %% Consider the implications to nodes_of_type/1 before altering - %% the next entry. - {rabbit_durable_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {disc_copies, [node()]}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_durable_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {disc_copies, [node()]}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}, - {rabbit_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}]. - -binding_match() -> - #binding{source = exchange_name_match(), - destination = binding_destination_match(), - _='_'}. -reverse_binding_match() -> - #reverse_binding{destination = binding_destination_match(), - source = exchange_name_match(), - _='_'}. -binding_destination_match() -> - resource_match('_'). -trie_edge_match() -> - #trie_edge{exchange_name = exchange_name_match(), - _='_'}. -trie_binding_match() -> - #trie_binding{exchange_name = exchange_name_match(), - _='_'}. -exchange_name_match() -> - resource_match(exchange). -queue_name_match() -> - resource_match(queue). -resource_match(Kind) -> - #resource{kind = Kind, _='_'}. - -table_names() -> - [Tab || {Tab, _} <- table_definitions()]. - -replicated_table_names() -> - [Tab || {Tab, TabDef} <- table_definitions(), - not lists:member({local_content, true}, TabDef) - ]. - -dir() -> mnesia:system_info(directory). - -ensure_mnesia_dir() -> - MnesiaDir = dir() ++ "/", - case filelib:ensure_dir(MnesiaDir) of - {error, Reason} -> - throw({error, {cannot_create_mnesia_dir, MnesiaDir, Reason}}); - ok -> - ok - end. - -ensure_mnesia_running() -> - case mnesia:system_info(is_running) of - yes -> ok; - no -> throw({error, mnesia_not_running}) - end. - -ensure_mnesia_not_running() -> - case mnesia:system_info(is_running) of - no -> ok; - yes -> throw({error, mnesia_unexpectedly_running}) - end. - -ensure_schema_integrity() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - throw({error, {schema_integrity_check_failed, Reason}}) - end. - -check_schema_integrity() -> - Tables = mnesia:system_info(tables), - case check_tables(fun (Tab, TabDef) -> - case lists:member(Tab, Tables) of - false -> {error, {table_missing, Tab}}; - true -> check_table_attributes(Tab, TabDef) - end - end) of - ok -> ok = wait_for_tables(), - check_tables(fun check_table_content/2); - Other -> Other - end. - -check_table_attributes(Tab, TabDef) -> - {_, ExpAttrs} = proplists:lookup(attributes, TabDef), - case mnesia:table_info(Tab, attributes) of - ExpAttrs -> ok; - Attrs -> {error, {table_attributes_mismatch, Tab, ExpAttrs, Attrs}} - end. - -check_table_content(Tab, TabDef) -> - {_, Match} = proplists:lookup(match, TabDef), - case mnesia:dirty_first(Tab) of - '$end_of_table' -> - ok; - Key -> - ObjList = mnesia:dirty_read(Tab, Key), - MatchComp = ets:match_spec_compile([{Match, [], ['$_']}]), - case ets:match_spec_run(ObjList, MatchComp) of - ObjList -> ok; - _ -> {error, {table_content_invalid, Tab, Match, ObjList}} - end - end. - -check_tables(Fun) -> - case [Error || {Tab, TabDef} <- table_definitions(), - case Fun(Tab, TabDef) of - ok -> Error = none, false; - {error, Error} -> true - end] of - [] -> ok; - Errors -> {error, Errors} - end. - -%% The cluster node config file contains some or all of the disk nodes -%% that are members of the cluster this node is / should be a part of. -%% -%% If the file is absent, the list is empty, or only contains the -%% current node, then the current node is a standalone (disk) -%% node. Otherwise it is a node that is part of a cluster as either a -%% disk node, if it appears in the cluster node config, or ram node if -%% it doesn't. - -cluster_nodes_config_filename() -> - dir() ++ "/cluster_nodes.config". - -create_cluster_nodes_config(ClusterNodes) -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:write_term_file(FileName, [ClusterNodes]) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_cluster_nodes_config, - FileName, Reason}}) - end. - -read_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - {ok, ClusterNodes} = application:get_env(rabbit, cluster_nodes), - ClusterNodes; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - FileName, Reason}}) - end. - -delete_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> - throw({error, {cannot_delete_cluster_nodes_config, - FileName, Reason}}) - end. - -running_nodes_filename() -> - filename:join(dir(), "nodes_running_at_shutdown"). - -record_running_nodes() -> - FileName = running_nodes_filename(), - Nodes = running_clustered_nodes() -- [node()], - %% Don't check the result: we're shutting down anyway and this is - %% a best-effort-basis. - rabbit_misc:write_term_file(FileName, [Nodes]), - ok. - -read_previously_running_nodes() -> - FileName = running_nodes_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [Nodes]} -> Nodes; - {error, enoent} -> []; - {error, Reason} -> throw({error, {cannot_read_previous_nodes_file, - FileName, Reason}}) - end. - -delete_previously_running_nodes() -> - FileName = running_nodes_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> throw({error, {cannot_delete_previous_nodes_file, - FileName, Reason}}) - end. - -%% Take a cluster node config and create the right kind of node - a -%% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. If Force is false, don't allow -%% connections to offline nodes. -init_db(ClusterNodes, Force, SecondaryPostMnesiaFun) -> - UClusterNodes = lists:usort(ClusterNodes), - ProperClusterNodes = UClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ProperClusterNodes) of - {ok, Nodes} -> - case Force of - false -> FailedClusterNodes = ProperClusterNodes -- Nodes, - case FailedClusterNodes of - [] -> ok; - _ -> throw({error, {failed_to_cluster_with, - FailedClusterNodes, - "Mnesia could not connect " - "to some nodes."}}) - end; - true -> ok - end, - case {Nodes, mnesia:system_info(use_dir)} of - {[], false} -> - %% Nothing there at all, start from scratch - ok = create_schema(); - {[], true} -> - %% We're the first node up - case rabbit_upgrade:maybe_upgrade_local() of - ok -> ensure_schema_integrity(); - version_not_available -> ok = schema_ok_or_move() - end, - ok; - {[AnotherNode|_], _} -> - %% Subsequent node in cluster, catch up - ensure_version_ok( - rpc:call(AnotherNode, rabbit_version, recorded, [])), - IsDiskNode = ClusterNodes == [] orelse - lists:member(node(), ClusterNodes), - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, disc_copies), - ok = create_local_table_copies(case IsDiskNode of - true -> disc; - false -> ram - end), - ok = SecondaryPostMnesiaFun(), - ensure_schema_integrity(), - ok - end; - {error, Reason} -> - %% one reason we may end up here is if we try to join - %% nodes together that are currently running standalone or - %% are members of a different cluster - throw({error, {unable_to_join_cluster, ClusterNodes, Reason}}) - end. - -maybe_upgrade_local_or_record_desired() -> - case rabbit_upgrade:maybe_upgrade_local() of - ok -> ok; - %% If we're just starting up a new node we won't have a - %% version - version_not_available -> ok = rabbit_version:record_desired() - end. - -schema_ok_or_move() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - %% NB: we cannot use rabbit_log here since it may not have been - %% started yet - error_logger:warning_msg("schema integrity check failed: ~p~n" - "moving database to backup location " - "and recreating schema from scratch~n", - [Reason]), - ok = move_db(), - ok = create_schema() - end. - -ensure_version_ok({ok, DiscVersion}) -> - DesiredVersion = rabbit_version:desired(), - case rabbit_version:matches(DesiredVersion, DiscVersion) of - true -> ok; - false -> throw({error, {version_mismatch, DesiredVersion, DiscVersion}}) - end; -ensure_version_ok({error, _}) -> - ok = rabbit_version:record_desired(). - -create_schema() -> - mnesia:stop(), - rabbit_misc:ensure_ok(mnesia:create_schema([node()]), - cannot_create_schema), - rabbit_misc:ensure_ok(mnesia:start(), - cannot_start_mnesia), - ok = create_tables(), - ensure_schema_integrity(), - ok = rabbit_version:record_desired(). - -move_db() -> - mnesia:stop(), - MnesiaDir = filename:dirname(dir() ++ "/"), - {{Year, Month, Day}, {Hour, Minute, Second}} = erlang:universaltime(), - BackupDir = lists:flatten( - io_lib:format("~s_~w~2..0w~2..0w~2..0w~2..0w~2..0w", - [MnesiaDir, - Year, Month, Day, Hour, Minute, Second])), - case file:rename(MnesiaDir, BackupDir) of - ok -> - %% NB: we cannot use rabbit_log here since it may not have - %% been started yet - error_logger:warning_msg("moved database from ~s to ~s~n", - [MnesiaDir, BackupDir]), - ok; - {error, Reason} -> throw({error, {cannot_backup_mnesia, - MnesiaDir, BackupDir, Reason}}) - end, - ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok. - -copy_db(Destination) -> - ok = ensure_mnesia_not_running(), - rabbit_misc:recursive_copy(dir(), Destination). - -create_tables() -> - lists:foreach(fun ({Tab, TabDef}) -> - TabDef1 = proplists:delete(match, TabDef), - case mnesia:create_table(Tab, TabDef1) of - {atomic, ok} -> ok; - {aborted, Reason} -> - throw({error, {table_creation_failed, - Tab, TabDef1, Reason}}) - end - end, - table_definitions()), - ok. - -table_has_copy_type(TabDef, DiscType) -> - lists:member(node(), proplists:get_value(DiscType, TabDef, [])). - -create_local_table_copies(Type) -> - lists:foreach( - fun ({Tab, TabDef}) -> - HasDiscCopies = table_has_copy_type(TabDef, disc_copies), - HasDiscOnlyCopies = table_has_copy_type(TabDef, disc_only_copies), - LocalTab = proplists:get_bool(local_content, TabDef), - StorageType = - if - Type =:= disc orelse LocalTab -> - if - HasDiscCopies -> disc_copies; - HasDiscOnlyCopies -> disc_only_copies; - true -> ram_copies - end; -%%% unused code - commented out to keep dialyzer happy -%%% Type =:= disc_only -> -%%% if -%%% HasDiscCopies or HasDiscOnlyCopies -> -%%% disc_only_copies; -%%% true -> ram_copies -%%% end; - Type =:= ram -> - ram_copies - end, - ok = create_local_table_copy(Tab, StorageType) - end, - table_definitions()), - ok. - -create_local_table_copy(Tab, Type) -> - StorageType = mnesia:table_info(Tab, storage_type), - {atomic, ok} = - if - StorageType == unknown -> - mnesia:add_table_copy(Tab, node(), Type); - StorageType /= Type -> - mnesia:change_table_copy_type(Tab, node(), Type); - true -> {atomic, ok} - end, - ok. - -wait_for_replicated_tables() -> wait_for_tables(replicated_table_names()). - -wait_for_tables() -> wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> - case mnesia:wait_for_tables(TableNames, 30000) of - ok -> - ok; - {timeout, BadTabs} -> - throw({error, {timeout_waiting_for_tables, BadTabs}}); - {error, Reason} -> - throw({error, {failed_waiting_for_tables, Reason}}) - end. - -reset(Force) -> - ensure_mnesia_not_running(), - Node = node(), - case Force of - true -> ok; - false -> - ensure_mnesia_dir(), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - {Nodes, RunningNodes} = - try - ok = init(), - {all_clustered_nodes() -- [Node], - running_clustered_nodes() -- [Node]} - after - mnesia:stop() - end, - leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) - end, - ok = delete_cluster_nodes_config(), - %% remove persisted messages and any other garbage we find - ok = rabbit_misc:recursive_delete(filelib:wildcard(dir() ++ "/*")), - ok. - -leave_cluster([], _) -> ok; -leave_cluster(Nodes, RunningNodes) -> - %% find at least one running cluster node and instruct it to - %% remove our schema copy which will in turn result in our node - %% being removed as a cluster node from the schema, with that - %% change being propagated to all nodes - case lists:any( - fun (Node) -> - case rpc:call(Node, mnesia, del_table_copy, - [schema, node()]) of - {atomic, ok} -> true; - {badrpc, nodedown} -> false; - {aborted, Reason} -> - throw({error, {failed_to_leave_cluster, - Nodes, RunningNodes, Reason}}) - end - end, - RunningNodes) of - true -> ok; - false -> throw({error, {no_running_cluster_nodes, - Nodes, RunningNodes}}) - end. diff --git a/src/rabbit_msg_file.erl b/src/rabbit_msg_file.erl deleted file mode 100644 index b7de27d4..00000000 --- a/src/rabbit_msg_file.erl +++ /dev/null @@ -1,125 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_file). - --export([append/3, read/2, scan/4]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_MARKER, 255). --define(FILE_PACKING_ADJUSTMENT, (1 + ?INTEGER_SIZE_BYTES)). --define(MSG_ID_SIZE_BYTES, 16). --define(MSG_ID_SIZE_BITS, (8 * ?MSG_ID_SIZE_BYTES)). --define(SCAN_BLOCK_SIZE, 4194304). %% 4MB - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(io_device() :: any()). --type(position() :: non_neg_integer()). --type(msg_size() :: non_neg_integer()). --type(file_size() :: non_neg_integer()). --type(message_accumulator(A) :: - fun (({rabbit_types:msg_id(), msg_size(), position(), binary()}, A) -> - A)). - --spec(append/3 :: (io_device(), rabbit_types:msg_id(), msg()) -> - rabbit_types:ok_or_error2(msg_size(), any())). --spec(read/2 :: (io_device(), msg_size()) -> - rabbit_types:ok_or_error2({rabbit_types:msg_id(), msg()}, - any())). --spec(scan/4 :: (io_device(), file_size(), message_accumulator(A), A) -> - {'ok', A, position()}). - --endif. - -%%---------------------------------------------------------------------------- - -append(FileHdl, MsgId, MsgBody) - when is_binary(MsgId) andalso size(MsgId) =:= ?MSG_ID_SIZE_BYTES -> - MsgBodyBin = term_to_binary(MsgBody), - MsgBodyBinSize = size(MsgBodyBin), - Size = MsgBodyBinSize + ?MSG_ID_SIZE_BYTES, - case file_handle_cache:append(FileHdl, - <>) of - ok -> {ok, Size + ?FILE_PACKING_ADJUSTMENT}; - KO -> KO - end. - -read(FileHdl, TotalSize) -> - Size = TotalSize - ?FILE_PACKING_ADJUSTMENT, - BodyBinSize = Size - ?MSG_ID_SIZE_BYTES, - case file_handle_cache:read(FileHdl, TotalSize) of - {ok, <>} -> - {ok, {MsgId, binary_to_term(MsgBodyBin)}}; - KO -> KO - end. - -scan(FileHdl, FileSize, Fun, Acc) when FileSize >= 0 -> - scan(FileHdl, FileSize, <<>>, 0, 0, Fun, Acc). - -scan(_FileHdl, FileSize, _Data, FileSize, ScanOffset, _Fun, Acc) -> - {ok, Acc, ScanOffset}; -scan(FileHdl, FileSize, Data, ReadOffset, ScanOffset, Fun, Acc) -> - Read = lists:min([?SCAN_BLOCK_SIZE, (FileSize - ReadOffset)]), - case file_handle_cache:read(FileHdl, Read) of - {ok, Data1} -> - {Data2, Acc1, ScanOffset1} = - scanner(<>, ScanOffset, Fun, Acc), - ReadOffset1 = ReadOffset + size(Data1), - scan(FileHdl, FileSize, Data2, ReadOffset1, ScanOffset1, Fun, Acc1); - _KO -> - {ok, Acc, ScanOffset} - end. - -scanner(<<>>, Offset, _Fun, Acc) -> - {<<>>, Acc, Offset}; -scanner(<<0:?INTEGER_SIZE_BITS, _Rest/binary>>, Offset, _Fun, Acc) -> - {<<>>, Acc, Offset}; %% Nothing to do other than stop. -scanner(<>, Offset, Fun, Acc) -> - TotalSize = Size + ?FILE_PACKING_ADJUSTMENT, - case WriteMarker of - ?WRITE_OK_MARKER -> - %% Here we take option 5 from - %% http://www.erlang.org/cgi-bin/ezmlm-cgi?2:mss:1569 in - %% which we read the MsgId as a number, and then convert it - %% back to a binary in order to work around bugs in - %% Erlang's GC. - <> = - <>, - <> = - <>, - scanner(Rest, Offset + TotalSize, Fun, - Fun({MsgId, TotalSize, Offset, Msg}, Acc)); - _ -> - scanner(Rest, Offset + TotalSize, Fun, Acc) - end; -scanner(Data, Offset, _Fun, Acc) -> - {Data, Acc, Offset}. diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl deleted file mode 100644 index 34c793ec..00000000 --- a/src/rabbit_msg_store.erl +++ /dev/null @@ -1,1938 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store). - --behaviour(gen_server2). - --export([start_link/4, successfully_recovered_state/1, - client_init/4, client_terminate/1, client_delete_and_terminate/1, - client_ref/1, close_all_indicated/1, - write/3, read/2, contains/2, remove/2, sync/3]). - --export([sync/1, set_maximum_since_use/2, - has_readers/2, combine_files/3, delete_file/2]). %% internal - --export([transform_dir/3, force_recovery/2]). %% upgrade - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_call/3, prioritise_cast/2]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(CLEAN_FILENAME, "clean.dot"). --define(FILE_SUMMARY_FILENAME, "file_summary.ets"). --define(TRANSFORM_TMP, "transform_tmp"). - --define(BINARY_MODE, [raw, binary]). --define(READ_MODE, [read]). --define(READ_AHEAD_MODE, [read_ahead | ?READ_MODE]). --define(WRITE_MODE, [write]). - --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). - --define(HANDLE_CACHE_BUFFER_SIZE, 1048576). %% 1MB - -%%---------------------------------------------------------------------------- - --record(msstate, - { dir, %% store directory - index_module, %% the module for index ops - index_state, %% where are messages? - current_file, %% current file name as number - current_file_handle, %% current file handle since the last fsync? - file_handle_cache, %% file handle cache - on_sync, %% pending sync requests - sync_timer_ref, %% TRef for our interval timer - sum_valid_data, %% sum of valid data in all files - sum_file_size, %% sum of file sizes - pending_gc_completion, %% things to do once GC completes - gc_pid, %% pid of our GC - file_handles_ets, %% tid of the shared file handles table - file_summary_ets, %% tid of the file summary table - cur_file_cache_ets, %% tid of current file cache table - dying_clients, %% set of dying clients - clients, %% map of references of all registered clients - %% to callbacks - successfully_recovered, %% boolean: did we recover state? - file_size_limit, %% how big are our files allowed to get? - cref_to_msg_ids %% client ref to synced messages mapping - }). - --record(client_msstate, - { server, - client_ref, - file_handle_cache, - index_state, - index_module, - dir, - gc_pid, - file_handles_ets, - file_summary_ets, - cur_file_cache_ets - }). - --record(file_summary, - {file, valid_total_size, left, right, file_size, locked, readers}). - --record(gc_state, - { dir, - index_module, - index_state, - file_summary_ets, - file_handles_ets, - msg_store - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([gc_state/0, file_num/0]). - --type(gc_state() :: #gc_state { dir :: file:filename(), - index_module :: atom(), - index_state :: any(), - file_summary_ets :: ets:tid(), - file_handles_ets :: ets:tid(), - msg_store :: server() - }). - --type(server() :: pid() | atom()). --type(client_ref() :: binary()). --type(file_num() :: non_neg_integer()). --type(client_msstate() :: #client_msstate { - server :: server(), - client_ref :: client_ref(), - file_handle_cache :: dict(), - index_state :: any(), - index_module :: atom(), - dir :: file:filename(), - gc_pid :: pid(), - file_handles_ets :: ets:tid(), - file_summary_ets :: ets:tid(), - cur_file_cache_ets :: ets:tid()}). --type(msg_ref_delta_gen(A) :: - fun ((A) -> 'finished' | - {rabbit_types:msg_id(), non_neg_integer(), A})). --type(maybe_msg_id_fun() :: 'undefined' | fun ((gb_set()) -> any())). --type(maybe_close_fds_fun() :: 'undefined' | fun (() -> 'ok')). --type(deletion_thunk() :: fun (() -> boolean())). - --spec(start_link/4 :: - (atom(), file:filename(), [binary()] | 'undefined', - {msg_ref_delta_gen(A), A}) -> rabbit_types:ok_pid_or_error()). --spec(successfully_recovered_state/1 :: (server()) -> boolean()). --spec(client_init/4 :: (server(), client_ref(), maybe_msg_id_fun(), - maybe_close_fds_fun()) -> client_msstate()). --spec(client_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_delete_and_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_ref/1 :: (client_msstate()) -> client_ref()). --spec(write/3 :: (rabbit_types:msg_id(), msg(), client_msstate()) -> 'ok'). --spec(read/2 :: (rabbit_types:msg_id(), client_msstate()) -> - {rabbit_types:ok(msg()) | 'not_found', client_msstate()}). --spec(contains/2 :: (rabbit_types:msg_id(), client_msstate()) -> boolean()). --spec(remove/2 :: ([rabbit_types:msg_id()], client_msstate()) -> 'ok'). --spec(sync/3 :: - ([rabbit_types:msg_id()], fun (() -> any()), client_msstate()) -> 'ok'). - --spec(sync/1 :: (server()) -> 'ok'). --spec(set_maximum_since_use/2 :: (server(), non_neg_integer()) -> 'ok'). --spec(has_readers/2 :: (non_neg_integer(), gc_state()) -> boolean()). --spec(combine_files/3 :: (non_neg_integer(), non_neg_integer(), gc_state()) -> - deletion_thunk()). --spec(delete_file/2 :: (non_neg_integer(), gc_state()) -> deletion_thunk()). --spec(force_recovery/2 :: (file:filename(), server()) -> 'ok'). --spec(transform_dir/3 :: (file:filename(), server(), - fun ((any()) -> (rabbit_types:ok_or_error2(msg(), any())))) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%% We run GC whenever (garbage / sum_file_size) > ?GARBAGE_FRACTION -%% It is not recommended to set this to < 0.5 --define(GARBAGE_FRACTION, 0.5). - -%% The components: -%% -%% Index: this is a mapping from MsgId to #msg_location{}: -%% {MsgId, RefCount, File, Offset, TotalSize} -%% By default, it's in ets, but it's also pluggable. -%% FileSummary: this is an ets table which maps File to #file_summary{}: -%% {File, ValidTotalSize, Left, Right, FileSize, Locked, Readers} -%% -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the Index); how much useful data is in each file and which files -%% are on the left and right of each other. This is the purpose of the -%% FileSummary ets table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file. This is needed for garbage collection. -%% -%% When we discover that a file is now empty, we delete it. When we -%% discover that it can be combined with the useful data in either its -%% left or right neighbour, and overall, across all the files, we have -%% ((the amount of garbage) / (the sum of all file sizes)) > -%% ?GARBAGE_FRACTION, we start a garbage collection run concurrently, -%% which will compact the two files together. This keeps disk -%% utilisation high and aids performance. We deliberately do this -%% lazily in order to prevent doing GC on files which are soon to be -%% emptied (and hence deleted) soon. -%% -%% Given the compaction between two files, the left file (i.e. elder -%% file) is considered the ultimate destination for the good data in -%% the right file. If necessary, the good data in the left file which -%% is fragmented throughout the file is written out to a temporary -%% file, then read back in to form a contiguous chunk of good data at -%% the start of the left file. Thus the left file is garbage collected -%% and compacted. Then the good data from the right file is copied -%% onto the end of the left file. Index and FileSummary tables are -%% updated. -%% -%% On non-clean startup, we scan the files we discover, dealing with -%% the possibilites of a crash having occured during a compaction -%% (this consists of tidyup - the compaction is deliberately designed -%% such that data is duplicated on disk rather than risking it being -%% lost), and rebuild the FileSummary ets table and Index. -%% -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten. -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). -%% -%% Messages are reference-counted. When a message with the same msg id -%% is written several times we only store it once, and only remove it -%% from the store when it has been removed the same number of times. -%% -%% The reference counts do not persist. Therefore the initialisation -%% function must be provided with a generator that produces ref count -%% deltas for all recovered messages. This is only used on startup -%% when the shutdown was non-clean. -%% -%% Read messages with a reference count greater than one are entered -%% into a message cache. The purpose of the cache is not especially -%% performance, though it can help there too, but prevention of memory -%% explosion. It ensures that as messages with a high reference count -%% are read from several processes they are read back as the same -%% binary object rather than multiples of identical binary -%% objects. -%% -%% Reads can be performed directly by clients without calling to the -%% server. This is safe because multiple file handles can be used to -%% read files. However, locking is used by the concurrent GC to make -%% sure that reads are not attempted from files which are in the -%% process of being garbage collected. -%% -%% When a message is removed, its reference count is decremented. Even -%% if the reference count becomes 0, its entry is not removed. This is -%% because in the event of the same message being sent to several -%% different queues, there is the possibility of one queue writing and -%% removing the message before other queues write it at all. Thus -%% accomodating 0-reference counts allows us to avoid unnecessary -%% writes here. Of course, there are complications: the file to which -%% the message has already been written could be locked pending -%% deletion or GC, which means we have to rewrite the message as the -%% original copy will now be lost. -%% -%% The server automatically defers reads, removes and contains calls -%% that occur which refer to files which are currently being -%% GC'd. Contains calls are only deferred in order to ensure they do -%% not overtake removes. -%% -%% The current file to which messages are being written has a -%% write-back cache. This is written to immediately by clients and can -%% be read from by clients too. This means that there are only ever -%% writes made to the current file, thus eliminating delays due to -%% flushing write buffers in order to be able to safely read from the -%% current file. The one exception to this is that on start up, the -%% cache is not populated with msgs found in the current file, and -%% thus in this case only, reads may have to come from the file -%% itself. The effect of this is that even if the msg_store process is -%% heavily overloaded, clients can still write and read messages with -%% very low latency and not block at all. -%% -%% Clients of the msg_store are required to register before using the -%% msg_store. This provides them with the necessary client-side state -%% to allow them to directly access the various caches and files. When -%% they terminate, they should deregister. They can do this by calling -%% either client_terminate/1 or client_delete_and_terminate/1. The -%% differences are: (a) client_terminate is synchronous. As a result, -%% if the msg_store is badly overloaded and has lots of in-flight -%% writes and removes to process, this will take some time to -%% return. However, once it does return, you can be sure that all the -%% actions you've issued to the msg_store have been processed. (b) Not -%% only is client_delete_and_terminate/1 asynchronous, but it also -%% permits writes and subsequent removes from the current -%% (terminating) client which are still in flight to be safely -%% ignored. Thus from the point of view of the msg_store itself, and -%% all from the same client: -%% -%% (T) = termination; (WN) = write of msg N; (RN) = remove of msg N -%% --> W1, W2, W1, R1, T, W3, R2, W2, R1, R2, R3, W4 --> -%% -%% The client obviously sent T after all the other messages (up to -%% W4), but because the msg_store prioritises messages, the T can be -%% promoted and thus received early. -%% -%% Thus at the point of the msg_store receiving T, we have messages 1 -%% and 2 with a refcount of 1. After T, W3 will be ignored because -%% it's an unknown message, as will R3, and W4. W2, R1 and R2 won't be -%% ignored because the messages that they refer to were already known -%% to the msg_store prior to T. However, it can be a little more -%% complex: after the first R2, the refcount of msg 2 is 0. At that -%% point, if a GC occurs or file deletion, msg 2 could vanish, which -%% would then mean that the subsequent W2 and R2 are then ignored. -%% -%% The use case then for client_delete_and_terminate/1 is if the -%% client wishes to remove everything it's written to the msg_store: -%% it issues removes for all messages it's written and not removed, -%% and then calls client_delete_and_terminate/1. At that point, any -%% in-flight writes (and subsequent removes) can be ignored, but -%% removes and writes for messages the msg_store already knows about -%% will continue to be processed normally (which will normally just -%% involve modifying the reference count, which is fast). Thus we save -%% disk bandwidth for writes which are going to be immediately removed -%% again by the the terminating client. -%% -%% We use a separate set to keep track of the dying clients in order -%% to keep that set, which is inspected on every write and remove, as -%% small as possible. Inspecting the set of all clients would degrade -%% performance with many healthy clients and few, if any, dying -%% clients, which is the typical case. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -start_link(Server, Dir, ClientRefs, StartupFunState) -> - gen_server2:start_link({local, Server}, ?MODULE, - [Server, Dir, ClientRefs, StartupFunState], - [{timeout, infinity}]). - -successfully_recovered_state(Server) -> - gen_server2:call(Server, successfully_recovered_state, infinity). - -client_init(Server, Ref, MsgOnDiskFun, CloseFDsFun) -> - {IState, IModule, Dir, GCPid, - FileHandlesEts, FileSummaryEts, CurFileCacheEts} = - gen_server2:call( - Server, {new_client_state, Ref, MsgOnDiskFun, CloseFDsFun}, infinity), - #client_msstate { server = Server, - client_ref = Ref, - file_handle_cache = dict:new(), - index_state = IState, - index_module = IModule, - dir = Dir, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts }. - -client_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_call(CState, {client_terminate, Ref}). - -client_delete_and_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_cast(CState, {client_dying, Ref}), - ok = server_cast(CState, {client_delete, Ref}). - -client_ref(#client_msstate { client_ref = Ref }) -> Ref. - -write(MsgId, Msg, - CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts, - client_ref = CRef }) -> - ok = update_msg_cache(CurFileCacheEts, MsgId, Msg), - ok = server_cast(CState, {write, CRef, MsgId}). - -read(MsgId, - CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts }) -> - %% Check the cur file cache - case ets:lookup(CurFileCacheEts, MsgId) of - [] -> - Defer = fun() -> {server_call(CState, {read, MsgId}), CState} end, - case index_lookup_positive_ref_count(MsgId, CState) of - not_found -> Defer(); - MsgLocation -> client_read1(MsgLocation, Defer, CState) - end; - [{MsgId, Msg, _CacheRefCount}] -> - {{ok, Msg}, CState} - end. - -contains(MsgId, CState) -> server_call(CState, {contains, MsgId}). -remove([], _CState) -> ok; -remove(MsgIds, CState = #client_msstate { client_ref = CRef }) -> - server_cast(CState, {remove, CRef, MsgIds}). -sync(MsgIds, K, CState) -> server_cast(CState, {sync, MsgIds, K}). - -sync(Server) -> - gen_server2:cast(Server, sync). - -set_maximum_since_use(Server, Age) -> - gen_server2:cast(Server, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- -%% Client-side-only helpers -%%---------------------------------------------------------------------------- - -server_call(#client_msstate { server = Server }, Msg) -> - gen_server2:call(Server, Msg, infinity). - -server_cast(#client_msstate { server = Server }, Msg) -> - gen_server2:cast(Server, Msg). - -client_read1(#msg_location { msg_id = MsgId, file = File } = MsgLocation, Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - case ets:lookup(FileSummaryEts, File) of - [] -> %% File has been GC'd and no longer exists. Go around again. - read(MsgId, CState); - [#file_summary { locked = Locked, right = Right }] -> - client_read2(Locked, Right, MsgLocation, Defer, CState) - end. - -client_read2(false, undefined, _MsgLocation, Defer, _CState) -> - %% Although we've already checked both caches and not found the - %% message there, the message is apparently in the - %% current_file. We can only arrive here if we are trying to read - %% a message which we have not written, which is very odd, so just - %% defer. - %% - %% OR, on startup, the cur_file_cache is not populated with the - %% contents of the current file, thus reads from the current file - %% will end up here and will need to be deferred. - Defer(); -client_read2(true, _Right, _MsgLocation, Defer, _CState) -> - %% Of course, in the mean time, the GC could have run and our msg - %% is actually in a different file, unlocked. However, defering is - %% the safest and simplest thing to do. - Defer(); -client_read2(false, _Right, - MsgLocation = #msg_location { msg_id = MsgId, file = File }, - Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - %% It's entirely possible that everything we're doing from here on - %% is for the wrong file, or a non-existent file, as a GC may have - %% finished. - safe_ets_update_counter( - FileSummaryEts, File, {#file_summary.readers, +1}, - fun (_) -> client_read3(MsgLocation, Defer, CState) end, - fun () -> read(MsgId, CState) end). - -client_read3(#msg_location { msg_id = MsgId, file = File }, Defer, - CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - gc_pid = GCPid, - client_ref = Ref }) -> - Release = - fun() -> ok = case ets:update_counter(FileSummaryEts, File, - {#file_summary.readers, -1}) of - 0 -> case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - rabbit_msg_store_gc:no_readers( - GCPid, File); - _ -> ok - end; - _ -> ok - end - end, - %% If a GC involving the file hasn't already started, it won't - %% start now. Need to check again to see if we've been locked in - %% the meantime, between lookup and update_counter (thus GC - %% started before our +1. In fact, it could have finished by now - %% too). - case ets:lookup(FileSummaryEts, File) of - [] -> %% GC has deleted our file, just go round again. - read(MsgId, CState); - [#file_summary { locked = true }] -> - %% If we get a badarg here, then the GC has finished and - %% deleted our file. Try going around again. Otherwise, - %% just defer. - %% - %% badarg scenario: we lookup, msg_store locks, GC starts, - %% GC ends, we +1 readers, msg_store ets:deletes (and - %% unlocks the dest) - try Release(), - Defer() - catch error:badarg -> read(MsgId, CState) - end; - [#file_summary { locked = false }] -> - %% Ok, we're definitely safe to continue - a GC involving - %% the file cannot start up now, and isn't running, so - %% nothing will tell us from now on to close the handle if - %% it's already open. - %% - %% Finally, we need to recheck that the msg is still at - %% the same place - it's possible an entire GC ran between - %% us doing the lookup and the +1 on the readers. (Same as - %% badarg scenario above, but we don't have a missing file - %% - we just have the /wrong/ file). - case index_lookup(MsgId, CState) of - #msg_location { file = File } = MsgLocation -> - %% Still the same file. - {ok, CState1} = close_all_indicated(CState), - %% We are now guaranteed that the mark_handle_open - %% call will either insert_new correctly, or will - %% fail, but find the value is open, not close. - mark_handle_open(FileHandlesEts, File, Ref), - %% Could the msg_store now mark the file to be - %% closed? No: marks for closing are issued only - %% when the msg_store has locked the file. - %% This will never be the current file - {Msg, CState2} = read_from_disk(MsgLocation, CState1), - Release(), %% this MUST NOT fail with badarg - {{ok, Msg}, CState2}; - #msg_location {} = MsgLocation -> %% different file! - Release(), %% this MUST NOT fail with badarg - client_read1(MsgLocation, Defer, CState); - not_found -> %% it seems not to exist. Defer, just to be sure. - try Release() %% this can badarg, same as locked case, above - catch error:badarg -> ok - end, - Defer() - end - end. - -clear_client(CRef, State = #msstate { cref_to_msg_ids = CTM, - dying_clients = DyingClients }) -> - State #msstate { cref_to_msg_ids = dict:erase(CRef, CTM), - dying_clients = sets:del_element(CRef, DyingClients) }. - - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([Server, BaseDir, ClientRefs, StartupFunState]) -> - process_flag(trap_exit, true), - - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - - Dir = filename:join(BaseDir, atom_to_list(Server)), - - {ok, IndexModule} = application:get_env(msg_store_index_module), - rabbit_log:info("~w: using ~p to provide index~n", [Server, IndexModule]), - - AttemptFileSummaryRecovery = - case ClientRefs of - undefined -> ok = rabbit_misc:recursive_delete([Dir]), - ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - false; - _ -> ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - recover_crashed_compactions(Dir) - end, - - %% if we found crashed compactions we trust neither the - %% file_summary nor the location index. Note the file_summary is - %% left empty here if it can't be recovered. - {FileSummaryRecovered, FileSummaryEts} = - recover_file_summary(AttemptFileSummaryRecovery, Dir), - - {CleanShutdown, IndexState, ClientRefs1} = - recover_index_and_client_refs(IndexModule, FileSummaryRecovered, - ClientRefs, Dir, Server), - Clients = dict:from_list( - [{CRef, {undefined, undefined}} || CRef <- ClientRefs1]), - %% CleanShutdown => msg location index and file_summary both - %% recovered correctly. - true = case {FileSummaryRecovered, CleanShutdown} of - {true, false} -> ets:delete_all_objects(FileSummaryEts); - _ -> true - end, - %% CleanShutdown <=> msg location index and file_summary both - %% recovered correctly. - - FileHandlesEts = ets:new(rabbit_msg_store_shared_file_handles, - [ordered_set, public]), - CurFileCacheEts = ets:new(rabbit_msg_store_cur_file, [set, public]), - - {ok, FileSizeLimit} = application:get_env(msg_store_file_size_limit), - - {ok, GCPid} = rabbit_msg_store_gc:start_link( - #gc_state { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - msg_store = self() - }), - - State = #msstate { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - current_file = 0, - current_file_handle = undefined, - file_handle_cache = dict:new(), - on_sync = [], - sync_timer_ref = undefined, - sum_valid_data = 0, - sum_file_size = 0, - pending_gc_completion = orddict:new(), - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - dying_clients = sets:new(), - clients = Clients, - successfully_recovered = CleanShutdown, - file_size_limit = FileSizeLimit, - cref_to_msg_ids = dict:new() - }, - - %% If we didn't recover the msg location index then we need to - %% rebuild it now. - {Offset, State1 = #msstate { current_file = CurFile }} = - build_index(CleanShutdown, StartupFunState, State), - - %% read is only needed so that we can seek - {ok, CurHdl} = open_file(Dir, filenum_to_name(CurFile), - [read | ?WRITE_MODE]), - {ok, Offset} = file_handle_cache:position(CurHdl, Offset), - ok = file_handle_cache:truncate(CurHdl), - - {ok, maybe_compact(State1 #msstate { current_file_handle = CurHdl }), - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - successfully_recovered_state -> 7; - {new_client_state, _Ref, _MODC, _CloseFDsFun} -> 7; - {read, _MsgId} -> 2; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - sync -> 8; - {combine_files, _Source, _Destination, _Reclaimed} -> 8; - {delete_file, _File, _Reclaimed} -> 8; - {set_maximum_since_use, _Age} -> 8; - {client_dying, _Pid} -> 7; - _ -> 0 - end. - -handle_call(successfully_recovered_state, _From, State) -> - reply(State #msstate.successfully_recovered, State); - -handle_call({new_client_state, CRef, MsgOnDiskFun, CloseFDsFun}, _From, - State = #msstate { dir = Dir, - index_state = IndexState, - index_module = IndexModule, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - gc_pid = GCPid }) -> - Clients1 = dict:store(CRef, {MsgOnDiskFun, CloseFDsFun}, Clients), - reply({IndexState, IndexModule, Dir, GCPid, FileHandlesEts, FileSummaryEts, - CurFileCacheEts}, State #msstate { clients = Clients1 }); - -handle_call({client_terminate, CRef}, _From, State) -> - reply(ok, clear_client(CRef, State)); - -handle_call({read, MsgId}, From, State) -> - State1 = read_message(MsgId, From, State), - noreply(State1); - -handle_call({contains, MsgId}, From, State) -> - State1 = contains_message(MsgId, From, State), - noreply(State1). - -handle_cast({client_dying, CRef}, - State = #msstate { dying_clients = DyingClients }) -> - DyingClients1 = sets:add_element(CRef, DyingClients), - noreply(write_message(CRef, <<>>, - State #msstate { dying_clients = DyingClients1 })); - -handle_cast({client_delete, CRef}, State = #msstate { clients = Clients }) -> - State1 = State #msstate { clients = dict:erase(CRef, Clients) }, - noreply(remove_message(CRef, CRef, clear_client(CRef, State1))); - -handle_cast({write, CRef, MsgId}, - State = #msstate { cur_file_cache_ets = CurFileCacheEts }) -> - true = 0 =< ets:update_counter(CurFileCacheEts, MsgId, {3, -1}), - [{MsgId, Msg, _CacheRefCount}] = ets:lookup(CurFileCacheEts, MsgId), - noreply( - case write_action(should_mask_action(CRef, MsgId, State), MsgId, State) of - {write, State1} -> - write_message(CRef, MsgId, Msg, State1); - {ignore, CurFile, State1 = #msstate { current_file = CurFile }} -> - State1; - {ignore, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), - State1; - {confirm, CurFile, State1 = #msstate { current_file = CurFile }}-> - record_pending_confirm(CRef, MsgId, State1); - {confirm, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), - update_pending_confirms( - fun (MsgOnDiskFun, CTM) -> - MsgOnDiskFun(gb_sets:singleton(MsgId), written), - CTM - end, CRef, State1) - end); - -handle_cast({remove, CRef, MsgIds}, State) -> - State1 = lists:foldl( - fun (MsgId, State2) -> remove_message(MsgId, CRef, State2) end, - State, MsgIds), - noreply(maybe_compact(client_confirm(CRef, gb_sets:from_list(MsgIds), - removed, State1))); - -handle_cast({sync, MsgIds, K}, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - on_sync = Syncs }) -> - {ok, SyncOffset} = file_handle_cache:last_sync_offset(CurHdl), - case lists:any(fun (MsgId) -> - #msg_location { file = File, offset = Offset } = - index_lookup(MsgId, State), - File =:= CurFile andalso Offset >= SyncOffset - end, MsgIds) of - false -> K(), - noreply(State); - true -> noreply(State #msstate { on_sync = [K | Syncs] }) - end; - -handle_cast(sync, State) -> - noreply(internal_sync(State)); - -handle_cast({combine_files, Source, Destination, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - ok = cleanup_after_file_deletion(Source, State), - %% see comment in cleanup_after_file_deletion, and client_read3 - true = mark_handle_to_close(Clients, FileHandlesEts, Destination, false), - true = ets:update_element(FileSummaryEts, Destination, - {#file_summary.locked, false}), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([Source, Destination], State1))); - -handle_cast({delete_file, File, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize }) -> - ok = cleanup_after_file_deletion(File, State), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([File], State1))); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State). - -handle_info(timeout, State) -> - noreply(internal_sync(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}. - -terminate(_Reason, State = #msstate { index_state = IndexState, - index_module = IndexModule, - current_file_handle = CurHdl, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - dir = Dir }) -> - %% stop the gc first, otherwise it could be working and we pull - %% out the ets tables from under it. - ok = rabbit_msg_store_gc:stop(GCPid), - State1 = case CurHdl of - undefined -> State; - _ -> State2 = internal_sync(State), - ok = file_handle_cache:close(CurHdl), - State2 - end, - State3 = close_all_handles(State1), - ok = store_file_summary(FileSummaryEts, Dir), - [true = ets:delete(T) || - T <- [FileSummaryEts, FileHandlesEts, CurFileCacheEts]], - IndexModule:terminate(IndexState), - ok = store_recovery_terms([{client_refs, dict:fetch_keys(Clients)}, - {index_module, IndexModule}], Dir), - State3 #msstate { index_state = undefined, - current_file_handle = undefined }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% general helper functions -%%---------------------------------------------------------------------------- - -noreply(State) -> - {State1, Timeout} = next_state(State), - {noreply, State1, Timeout}. - -reply(Reply, State) -> - {State1, Timeout} = next_state(State), - {reply, Reply, State1, Timeout}. - -next_state(State = #msstate { sync_timer_ref = undefined, - on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - case {Syncs, dict:size(CTM)} of - {[], 0} -> {State, hibernate}; - _ -> {start_sync_timer(State), 0} - end; -next_state(State = #msstate { on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - case {Syncs, dict:size(CTM)} of - {[], 0} -> {stop_sync_timer(State), hibernate}; - _ -> {State, 0} - end. - -start_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, sync, [self()]), - State #msstate { sync_timer_ref = TRef }. - -stop_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - State; -stop_sync_timer(State = #msstate { sync_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #msstate { sync_timer_ref = undefined }. - -internal_sync(State = #msstate { current_file_handle = CurHdl, - on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - State1 = stop_sync_timer(State), - CGs = dict:fold(fun (CRef, MsgIds, NS) -> - case gb_sets:is_empty(MsgIds) of - true -> NS; - false -> [{CRef, MsgIds} | NS] - end - end, [], CTM), - ok = case {Syncs, CGs} of - {[], []} -> ok; - _ -> file_handle_cache:sync(CurHdl) - end, - [K() || K <- lists:reverse(Syncs)], - State2 = lists:foldl( - fun ({CRef, MsgIds}, StateN) -> - client_confirm(CRef, MsgIds, written, StateN) - end, State1, CGs), - State2 #msstate { on_sync = [] }. - -write_action({true, not_found}, _MsgId, State) -> - {ignore, undefined, State}; -write_action({true, #msg_location { file = File }}, _MsgId, State) -> - {ignore, File, State}; -write_action({false, not_found}, _MsgId, State) -> - {write, State}; -write_action({Mask, #msg_location { ref_count = 0, file = File, - total_size = TotalSize }}, - MsgId, State = #msstate { file_summary_ets = FileSummaryEts }) -> - case {Mask, ets:lookup(FileSummaryEts, File)} of - {false, [#file_summary { locked = true }]} -> - ok = index_delete(MsgId, State), - {write, State}; - {false_if_increment, [#file_summary { locked = true }]} -> - %% The msg for MsgId is older than the client death - %% message, but as it is being GC'd currently we'll have - %% to write a new copy, which will then be younger, so - %% ignore this write. - {ignore, File, State}; - {_Mask, [#file_summary {}]} -> - ok = index_update_ref_count(MsgId, 1, State), - State1 = adjust_valid_total_size(File, TotalSize, State), - {confirm, File, State1} - end; -write_action({_Mask, #msg_location { ref_count = RefCount, file = File }}, - MsgId, State) -> - ok = index_update_ref_count(MsgId, RefCount + 1, State), - %% We already know about it, just update counter. Only update - %% field otherwise bad interaction with concurrent GC - {confirm, File, State}. - -write_message(CRef, MsgId, Msg, State) -> - write_message(MsgId, Msg, record_pending_confirm(CRef, MsgId, State)). - -write_message(MsgId, Msg, - State = #msstate { current_file_handle = CurHdl, - current_file = CurFile, - sum_valid_data = SumValid, - sum_file_size = SumFileSize, - file_summary_ets = FileSummaryEts }) -> - {ok, CurOffset} = file_handle_cache:current_virtual_offset(CurHdl), - {ok, TotalSize} = rabbit_msg_file:append(CurHdl, MsgId, Msg), - ok = index_insert( - #msg_location { msg_id = MsgId, ref_count = 1, file = CurFile, - offset = CurOffset, total_size = TotalSize }, State), - [#file_summary { right = undefined, locked = false }] = - ets:lookup(FileSummaryEts, CurFile), - [_,_] = ets:update_counter(FileSummaryEts, CurFile, - [{#file_summary.valid_total_size, TotalSize}, - {#file_summary.file_size, TotalSize}]), - maybe_roll_to_new_file(CurOffset + TotalSize, - State #msstate { - sum_valid_data = SumValid + TotalSize, - sum_file_size = SumFileSize + TotalSize }). - -read_message(MsgId, From, State) -> - case index_lookup_positive_ref_count(MsgId, State) of - not_found -> gen_server2:reply(From, not_found), - State; - MsgLocation -> read_message1(From, MsgLocation, State) - end. - -read_message1(From, #msg_location { msg_id = MsgId, file = File, - offset = Offset } = MsgLoc, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts }) -> - case File =:= CurFile of - true -> {Msg, State1} = - %% can return [] if msg in file existed on startup - case ets:lookup(CurFileCacheEts, MsgId) of - [] -> - {ok, RawOffSet} = - file_handle_cache:current_raw_offset(CurHdl), - ok = case Offset >= RawOffSet of - true -> file_handle_cache:flush(CurHdl); - false -> ok - end, - read_from_disk(MsgLoc, State); - [{MsgId, Msg1, _CacheRefCount}] -> - {Msg1, State} - end, - gen_server2:reply(From, {ok, Msg}), - State1; - false -> [#file_summary { locked = Locked }] = - ets:lookup(FileSummaryEts, File), - case Locked of - true -> add_to_pending_gc_completion({read, MsgId, From}, - File, State); - false -> {Msg, State1} = read_from_disk(MsgLoc, State), - gen_server2:reply(From, {ok, Msg}), - State1 - end - end. - -read_from_disk(#msg_location { msg_id = MsgId, file = File, offset = Offset, - total_size = TotalSize }, State) -> - {Hdl, State1} = get_read_handle(File, State), - {ok, Offset} = file_handle_cache:position(Hdl, Offset), - {ok, {MsgId, Msg}} = - case rabbit_msg_file:read(Hdl, TotalSize) of - {ok, {MsgId, _}} = Obj -> - Obj; - Rest -> - {error, {misread, [{old_state, State}, - {file_num, File}, - {offset, Offset}, - {msg_id, MsgId}, - {read, Rest}, - {proc_dict, get()} - ]}} - end, - {Msg, State1}. - -contains_message(MsgId, From, - State = #msstate { pending_gc_completion = Pending }) -> - case index_lookup_positive_ref_count(MsgId, State) of - not_found -> - gen_server2:reply(From, false), - State; - #msg_location { file = File } -> - case orddict:is_key(File, Pending) of - true -> add_to_pending_gc_completion( - {contains, MsgId, From}, File, State); - false -> gen_server2:reply(From, true), - State - end - end. - -remove_message(MsgId, CRef, - State = #msstate { file_summary_ets = FileSummaryEts }) -> - case should_mask_action(CRef, MsgId, State) of - {true, _Location} -> - State; - {false_if_increment, #msg_location { ref_count = 0 }} -> - %% CRef has tried to both write and remove this msg - %% whilst it's being GC'd. ASSERTION: - %% [#file_summary { locked = true }] = - %% ets:lookup(FileSummaryEts, File), - State; - {_Mask, #msg_location { ref_count = RefCount, file = File, - total_size = TotalSize }} when RefCount > 0 -> - %% only update field, otherwise bad interaction with - %% concurrent GC - Dec = fun () -> - index_update_ref_count(MsgId, RefCount - 1, State) - end, - case RefCount of - %% don't remove from CUR_FILE_CACHE_ETS_NAME here - %% because there may be further writes in the mailbox - %% for the same msg. - 1 -> case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - add_to_pending_gc_completion( - {remove, MsgId, CRef}, File, State); - [#file_summary {}] -> - ok = Dec(), - delete_file_if_empty( - File, adjust_valid_total_size(File, -TotalSize, - State)) - end; - _ -> ok = Dec(), - State - end - end. - -add_to_pending_gc_completion( - Op, File, State = #msstate { pending_gc_completion = Pending }) -> - State #msstate { pending_gc_completion = - rabbit_misc:orddict_cons(File, Op, Pending) }. - -run_pending(Files, State) -> - lists:foldl( - fun (File, State1 = #msstate { pending_gc_completion = Pending }) -> - Pending1 = orddict:erase(File, Pending), - lists:foldl( - fun run_pending_action/2, - State1 #msstate { pending_gc_completion = Pending1 }, - lists:reverse(orddict:fetch(File, Pending))) - end, State, Files). - -run_pending_action({read, MsgId, From}, State) -> - read_message(MsgId, From, State); -run_pending_action({contains, MsgId, From}, State) -> - contains_message(MsgId, From, State); -run_pending_action({remove, MsgId, CRef}, State) -> - remove_message(MsgId, CRef, State). - -safe_ets_update_counter(Tab, Key, UpdateOp, SuccessFun, FailThunk) -> - try - SuccessFun(ets:update_counter(Tab, Key, UpdateOp)) - catch error:badarg -> FailThunk() - end. - -safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> - safe_ets_update_counter(Tab, Key, UpdateOp, fun (_) -> ok end, FailThunk). - -adjust_valid_total_size(File, Delta, State = #msstate { - sum_valid_data = SumValid, - file_summary_ets = FileSummaryEts }) -> - [_] = ets:update_counter(FileSummaryEts, File, - [{#file_summary.valid_total_size, Delta}]), - State #msstate { sum_valid_data = SumValid + Delta }. - -orddict_store(Key, Val, Dict) -> - false = orddict:is_key(Key, Dict), - orddict:store(Key, Val, Dict). - -update_pending_confirms(Fun, CRef, - State = #msstate { clients = Clients, - cref_to_msg_ids = CTM }) -> - case dict:fetch(CRef, Clients) of - {undefined, _CloseFDsFun} -> State; - {MsgOnDiskFun, _CloseFDsFun} -> CTM1 = Fun(MsgOnDiskFun, CTM), - State #msstate { - cref_to_msg_ids = CTM1 } - end. - -record_pending_confirm(CRef, MsgId, State) -> - update_pending_confirms( - fun (_MsgOnDiskFun, CTM) -> - dict:update(CRef, fun (MsgIds) -> gb_sets:add(MsgId, MsgIds) end, - gb_sets:singleton(MsgId), CTM) - end, CRef, State). - -client_confirm(CRef, MsgIds, ActionTaken, State) -> - update_pending_confirms( - fun (MsgOnDiskFun, CTM) -> - MsgOnDiskFun(MsgIds, ActionTaken), - case dict:find(CRef, CTM) of - {ok, Gs} -> MsgIds1 = gb_sets:difference(Gs, MsgIds), - case gb_sets:is_empty(MsgIds1) of - true -> dict:erase(CRef, CTM); - false -> dict:store(CRef, MsgIds1, CTM) - end; - error -> CTM - end - end, CRef, State). - -%% Detect whether the MsgId is older or younger than the client's death -%% msg (if there is one). If the msg is older than the client death -%% msg, and it has a 0 ref_count we must only alter the ref_count, not -%% rewrite the msg - rewriting it would make it younger than the death -%% msg and thus should be ignored. Note that this (correctly) returns -%% false when testing to remove the death msg itself. -should_mask_action(CRef, MsgId, - State = #msstate { dying_clients = DyingClients }) -> - case {sets:is_element(CRef, DyingClients), index_lookup(MsgId, State)} of - {false, Location} -> - {false, Location}; - {true, not_found} -> - {true, not_found}; - {true, #msg_location { file = File, offset = Offset, - ref_count = RefCount } = Location} -> - #msg_location { file = DeathFile, offset = DeathOffset } = - index_lookup(CRef, State), - {case {{DeathFile, DeathOffset} < {File, Offset}, RefCount} of - {true, _} -> true; - {false, 0} -> false_if_increment; - {false, _} -> false - end, Location} - end. - -%%---------------------------------------------------------------------------- -%% file helper functions -%%---------------------------------------------------------------------------- - -open_file(Dir, FileName, Mode) -> - file_handle_cache:open(form_filename(Dir, FileName), ?BINARY_MODE ++ Mode, - [{write_buffer, ?HANDLE_CACHE_BUFFER_SIZE}]). - -close_handle(Key, CState = #client_msstate { file_handle_cache = FHC }) -> - CState #client_msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, State = #msstate { file_handle_cache = FHC }) -> - State #msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, FHC) -> - case dict:find(Key, FHC) of - {ok, Hdl} -> ok = file_handle_cache:close(Hdl), - dict:erase(Key, FHC); - error -> FHC - end. - -mark_handle_open(FileHandlesEts, File, Ref) -> - %% This is fine to fail (already exists). Note it could fail with - %% the value being close, and not have it updated to open. - ets:insert_new(FileHandlesEts, {{Ref, File}, open}), - true. - -%% See comment in client_read3 - only call this when the file is locked -mark_handle_to_close(ClientRefs, FileHandlesEts, File, Invoke) -> - [ begin - case (ets:update_element(FileHandlesEts, Key, {2, close}) - andalso Invoke) of - true -> case dict:fetch(Ref, ClientRefs) of - {_MsgOnDiskFun, undefined} -> ok; - {_MsgOnDiskFun, CloseFDsFun} -> ok = CloseFDsFun() - end; - false -> ok - end - end || {{Ref, _File} = Key, open} <- - ets:match_object(FileHandlesEts, {{'_', File}, open}) ], - true. - -safe_file_delete_fun(File, Dir, FileHandlesEts) -> - fun () -> safe_file_delete(File, Dir, FileHandlesEts) end. - -safe_file_delete(File, Dir, FileHandlesEts) -> - %% do not match on any value - it's the absence of the row that - %% indicates the client has really closed the file. - case ets:match_object(FileHandlesEts, {{'_', File}, '_'}, 1) of - {[_|_], _Cont} -> false; - _ -> ok = file:delete( - form_filename(Dir, filenum_to_name(File))), - true - end. - -close_all_indicated(#client_msstate { file_handles_ets = FileHandlesEts, - client_ref = Ref } = - CState) -> - Objs = ets:match_object(FileHandlesEts, {{Ref, '_'}, close}), - {ok, lists:foldl(fun ({Key = {_Ref, File}, close}, CStateM) -> - true = ets:delete(FileHandlesEts, Key), - close_handle(File, CStateM) - end, CState, Objs)}. - -close_all_handles(CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_handle_cache = FHC, - client_ref = Ref }) -> - ok = dict:fold(fun (File, Hdl, ok) -> - true = ets:delete(FileHandlesEts, {Ref, File}), - file_handle_cache:close(Hdl) - end, ok, FHC), - CState #client_msstate { file_handle_cache = dict:new() }; - -close_all_handles(State = #msstate { file_handle_cache = FHC }) -> - ok = dict:fold(fun (_Key, Hdl, ok) -> file_handle_cache:close(Hdl) end, - ok, FHC), - State #msstate { file_handle_cache = dict:new() }. - -get_read_handle(FileNum, CState = #client_msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, CState #client_msstate { file_handle_cache = FHC2 }}; - -get_read_handle(FileNum, State = #msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, State #msstate { file_handle_cache = FHC2 }}. - -get_read_handle(FileNum, FHC, Dir) -> - case dict:find(FileNum, FHC) of - {ok, Hdl} -> {Hdl, FHC}; - error -> {ok, Hdl} = open_file(Dir, filenum_to_name(FileNum), - ?READ_MODE), - {Hdl, dict:store(FileNum, Hdl, FHC)} - end. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file_handle_cache:position(Hdl, FileSizeLimit), - ok = file_handle_cache:truncate(Hdl), - {ok, FinalPos} = file_handle_cache:position(Hdl, FinalPos), - ok. - -truncate_and_extend_file(Hdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file_handle_cache:position(Hdl, Lowpoint), - ok = file_handle_cache:truncate(Hdl), - ok = preallocate(Hdl, Highpoint, Lowpoint). - -form_filename(Dir, Name) -> filename:join(Dir, Name). - -filenum_to_name(File) -> integer_to_list(File) ++ ?FILE_EXTENSION. - -filename_to_num(FileName) -> list_to_integer(filename:rootname(FileName)). - -list_sorted_file_names(Dir, Ext) -> - lists:sort(fun (A, B) -> filename_to_num(A) < filename_to_num(B) end, - filelib:wildcard("*" ++ Ext, Dir)). - -%%---------------------------------------------------------------------------- -%% message cache helper functions -%%---------------------------------------------------------------------------- - -update_msg_cache(CacheEts, MsgId, Msg) -> - case ets:insert_new(CacheEts, {MsgId, Msg, 1}) of - true -> ok; - false -> safe_ets_update_counter_ok( - CacheEts, MsgId, {3, +1}, - fun () -> update_msg_cache(CacheEts, MsgId, Msg) end) - end. - -%%---------------------------------------------------------------------------- -%% index -%%---------------------------------------------------------------------------- - -index_lookup_positive_ref_count(Key, State) -> - case index_lookup(Key, State) of - not_found -> not_found; - #msg_location { ref_count = 0 } -> not_found; - #msg_location {} = MsgLocation -> MsgLocation - end. - -index_update_ref_count(Key, RefCount, State) -> - index_update_fields(Key, {#msg_location.ref_count, RefCount}, State). - -index_lookup(Key, #client_msstate { index_module = Index, - index_state = State }) -> - Index:lookup(Key, State); - -index_lookup(Key, #msstate { index_module = Index, index_state = State }) -> - Index:lookup(Key, State). - -index_insert(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:insert(Obj, State). - -index_update(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:update(Obj, State). - -index_update_fields(Key, Updates, #msstate { index_module = Index, - index_state = State }) -> - Index:update_fields(Key, Updates, State). - -index_delete(Key, #msstate { index_module = Index, index_state = State }) -> - Index:delete(Key, State). - -index_delete_by_file(File, #msstate { index_module = Index, - index_state = State }) -> - Index:delete_by_file(File, State). - -%%---------------------------------------------------------------------------- -%% shutdown and recovery -%%---------------------------------------------------------------------------- - -recover_index_and_client_refs(IndexModule, _Recover, undefined, Dir, _Server) -> - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, false, _ClientRefs, Dir, Server) -> - rabbit_log:warning("~w: rebuilding indices from scratch~n", [Server]), - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, true, ClientRefs, Dir, Server) -> - Fresh = fun (ErrorMsg, ErrorArgs) -> - rabbit_log:warning("~w: " ++ ErrorMsg ++ "~n" - "rebuilding indices from scratch~n", - [Server | ErrorArgs]), - {false, IndexModule:new(Dir), []} - end, - case read_recovery_terms(Dir) of - {false, Error} -> - Fresh("failed to read recovery terms: ~p", [Error]); - {true, Terms} -> - RecClientRefs = proplists:get_value(client_refs, Terms, []), - RecIndexModule = proplists:get_value(index_module, Terms), - case (lists:sort(ClientRefs) =:= lists:sort(RecClientRefs) - andalso IndexModule =:= RecIndexModule) of - true -> case IndexModule:recover(Dir) of - {ok, IndexState1} -> - {true, IndexState1, ClientRefs}; - {error, Error} -> - Fresh("failed to recover index: ~p", [Error]) - end; - false -> Fresh("recovery terms differ from present", []) - end - end. - -store_recovery_terms(Terms, Dir) -> - rabbit_misc:write_term_file(filename:join(Dir, ?CLEAN_FILENAME), Terms). - -read_recovery_terms(Dir) -> - Path = filename:join(Dir, ?CLEAN_FILENAME), - case rabbit_misc:read_term_file(Path) of - {ok, Terms} -> case file:delete(Path) of - ok -> {true, Terms}; - {error, Error} -> {false, Error} - end; - {error, Error} -> {false, Error} - end. - -store_file_summary(Tid, Dir) -> - ok = ets:tab2file(Tid, filename:join(Dir, ?FILE_SUMMARY_FILENAME), - [{extended_info, [object_count]}]). - -recover_file_summary(false, _Dir) -> - %% TODO: the only reason for this to be an *ordered*_set is so - %% that a) maybe_compact can start a traversal from the eldest - %% file, and b) build_index in fast recovery mode can easily - %% identify the current file. It's awkward to have both that - %% odering and the left/right pointers in the entries - replacing - %% the former with some additional bit of state would be easy, but - %% ditching the latter would be neater. - {false, ets:new(rabbit_msg_store_file_summary, - [ordered_set, public, {keypos, #file_summary.file}])}; -recover_file_summary(true, Dir) -> - Path = filename:join(Dir, ?FILE_SUMMARY_FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> ok = file:delete(Path), - {true, Tid}; - {error, _Error} -> recover_file_summary(false, Dir) - end. - -count_msg_refs(Gen, Seed, State) -> - case Gen(Seed) of - finished -> - ok; - {_MsgId, 0, Next} -> - count_msg_refs(Gen, Next, State); - {MsgId, Delta, Next} -> - ok = case index_lookup(MsgId, State) of - not_found -> - index_insert(#msg_location { msg_id = MsgId, - file = undefined, - ref_count = Delta }, - State); - #msg_location { ref_count = RefCount } = StoreEntry -> - NewRefCount = RefCount + Delta, - case NewRefCount of - 0 -> index_delete(MsgId, State); - _ -> index_update(StoreEntry #msg_location { - ref_count = NewRefCount }, - State) - end - end, - count_msg_refs(Gen, Next, State) - end. - -recover_crashed_compactions(Dir) -> - FileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION), - TmpFileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION_TMP), - lists:foreach( - fun (TmpFileName) -> - NonTmpRelatedFileName = - filename:rootname(TmpFileName) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFileName, FileNames), - ok = recover_crashed_compaction( - Dir, TmpFileName, NonTmpRelatedFileName) - end, TmpFileNames), - TmpFileNames == []. - -recover_crashed_compaction(Dir, TmpFileName, NonTmpRelatedFileName) -> - %% Because a msg can legitimately appear multiple times in the - %% same file, identifying the contents of the tmp file and where - %% they came from is non-trivial. If we are recovering a crashed - %% compaction then we will be rebuilding the index, which can cope - %% with duplicates appearing. Thus the simplest and safest thing - %% to do is to append the contents of the tmp file to its main - %% file. - {ok, TmpHdl} = open_file(Dir, TmpFileName, ?READ_MODE), - {ok, MainHdl} = open_file(Dir, NonTmpRelatedFileName, - ?READ_MODE ++ ?WRITE_MODE), - {ok, _End} = file_handle_cache:position(MainHdl, eof), - Size = filelib:file_size(form_filename(Dir, TmpFileName)), - {ok, Size} = file_handle_cache:copy(TmpHdl, MainHdl, Size), - ok = file_handle_cache:close(MainHdl), - ok = file_handle_cache:delete(TmpHdl), - ok. - -scan_file_for_valid_messages(Dir, FileName) -> - case open_file(Dir, FileName, ?READ_MODE) of - {ok, Hdl} -> Valid = rabbit_msg_file:scan( - Hdl, filelib:file_size( - form_filename(Dir, FileName)), - fun scan_fun/2, []), - ok = file_handle_cache:close(Hdl), - Valid; - {error, enoent} -> {ok, [], 0}; - {error, Reason} -> {error, {unable_to_scan_file, FileName, Reason}} - end. - -scan_fun({MsgId, TotalSize, Offset, _Msg}, Acc) -> - [{MsgId, TotalSize, Offset} | Acc]. - -%% Takes the list in *ascending* order (i.e. eldest message -%% first). This is the opposite of what scan_file_for_valid_messages -%% produces. The list of msgs that is produced is youngest first. -drop_contiguous_block_prefix(L) -> drop_contiguous_block_prefix(L, 0). - -drop_contiguous_block_prefix([], ExpectedOffset) -> - {ExpectedOffset, []}; -drop_contiguous_block_prefix([#msg_location { offset = ExpectedOffset, - total_size = TotalSize } | Tail], - ExpectedOffset) -> - ExpectedOffset1 = ExpectedOffset + TotalSize, - drop_contiguous_block_prefix(Tail, ExpectedOffset1); -drop_contiguous_block_prefix(MsgsAfterGap, ExpectedOffset) -> - {ExpectedOffset, MsgsAfterGap}. - -build_index(true, _StartupFunState, - State = #msstate { file_summary_ets = FileSummaryEts }) -> - ets:foldl( - fun (#file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize, - file = File }, - {_Offset, State1 = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize }}) -> - {FileSize, State1 #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize, - current_file = File }} - end, {0, State}, FileSummaryEts); -build_index(false, {MsgRefDeltaGen, MsgRefDeltaGenInit}, - State = #msstate { dir = Dir }) -> - ok = count_msg_refs(MsgRefDeltaGen, MsgRefDeltaGenInit, State), - {ok, Pid} = gatherer:start_link(), - case [filename_to_num(FileName) || - FileName <- list_sorted_file_names(Dir, ?FILE_EXTENSION)] of - [] -> build_index(Pid, undefined, [State #msstate.current_file], - State); - Files -> {Offset, State1} = build_index(Pid, undefined, Files, State), - {Offset, lists:foldl(fun delete_file_if_empty/2, - State1, Files)} - end. - -build_index(Gatherer, Left, [], - State = #msstate { file_summary_ets = FileSummaryEts, - sum_valid_data = SumValid, - sum_file_size = SumFileSize }) -> - case gatherer:out(Gatherer) of - empty -> - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer), - ok = index_delete_by_file(undefined, State), - Offset = case ets:lookup(FileSummaryEts, Left) of - [] -> 0; - [#file_summary { file_size = FileSize }] -> FileSize - end, - {Offset, State #msstate { current_file = Left }}; - {value, #file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize } = FileSummary} -> - true = ets:insert_new(FileSummaryEts, FileSummary), - build_index(Gatherer, Left, [], - State #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize }) - end; -build_index(Gatherer, Left, [File|Files], State) -> - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> build_index_worker(Gatherer, State, - Left, File, Files) - end), - build_index(Gatherer, File, Files, State). - -build_index_worker(Gatherer, State = #msstate { dir = Dir }, - Left, File, Files) -> - {ok, Messages, FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - {ValidMessages, ValidTotalSize} = - lists:foldl( - fun (Obj = {MsgId, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case index_lookup(MsgId, State) of - #msg_location { file = undefined } = StoreEntry -> - ok = index_update(StoreEntry #msg_location { - file = File, offset = Offset, - total_size = TotalSize }, - State), - {[Obj | VMAcc], VTSAcc + TotalSize}; - _ -> - {VMAcc, VTSAcc} - end - end, {[], 0}, Messages), - {Right, FileSize1} = - case Files of - %% if it's the last file, we'll truncate to remove any - %% rubbish above the last valid message. This affects the - %% file size. - [] -> {undefined, case ValidMessages of - [] -> 0; - _ -> {_MsgId, TotalSize, Offset} = - lists:last(ValidMessages), - Offset + TotalSize - end}; - [F|_] -> {F, FileSize} - end, - ok = gatherer:in(Gatherer, #file_summary { - file = File, - valid_total_size = ValidTotalSize, - left = Left, - right = Right, - file_size = FileSize1, - locked = false, - readers = 0 }), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- internal -%%---------------------------------------------------------------------------- - -maybe_roll_to_new_file( - Offset, - State = #msstate { dir = Dir, - current_file_handle = CurHdl, - current_file = CurFile, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - file_size_limit = FileSizeLimit }) - when Offset >= FileSizeLimit -> - State1 = internal_sync(State), - ok = file_handle_cache:close(CurHdl), - NextFile = CurFile + 1, - {ok, NextHdl} = open_file(Dir, filenum_to_name(NextFile), ?WRITE_MODE), - true = ets:insert_new(FileSummaryEts, #file_summary { - file = NextFile, - valid_total_size = 0, - left = CurFile, - right = undefined, - file_size = 0, - locked = false, - readers = 0 }), - true = ets:update_element(FileSummaryEts, CurFile, - {#file_summary.right, NextFile}), - true = ets:match_delete(CurFileCacheEts, {'_', '_', 0}), - maybe_compact(State1 #msstate { current_file_handle = NextHdl, - current_file = NextFile }); -maybe_roll_to_new_file(_, State) -> - State. - -maybe_compact(State = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize, - gc_pid = GCPid, - pending_gc_completion = Pending, - file_summary_ets = FileSummaryEts, - file_size_limit = FileSizeLimit }) - when SumFileSize > 2 * FileSizeLimit andalso - (SumFileSize - SumValid) / SumFileSize > ?GARBAGE_FRACTION -> - %% TODO: the algorithm here is sub-optimal - it may result in a - %% complete traversal of FileSummaryEts. - case ets:first(FileSummaryEts) of - '$end_of_table' -> - State; - First -> - case find_files_to_combine(FileSummaryEts, FileSizeLimit, - ets:lookup(FileSummaryEts, First)) of - not_found -> - State; - {Src, Dst} -> - Pending1 = orddict_store(Dst, [], - orddict_store(Src, [], Pending)), - State1 = close_handle(Src, close_handle(Dst, State)), - true = ets:update_element(FileSummaryEts, Src, - {#file_summary.locked, true}), - true = ets:update_element(FileSummaryEts, Dst, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:combine(GCPid, Src, Dst), - State1 #msstate { pending_gc_completion = Pending1 } - end - end; -maybe_compact(State) -> - State. - -find_files_to_combine(FileSummaryEts, FileSizeLimit, - [#file_summary { file = Dst, - valid_total_size = DstValid, - right = Src, - locked = DstLocked }]) -> - case Src of - undefined -> - not_found; - _ -> - [#file_summary { file = Src, - valid_total_size = SrcValid, - left = Dst, - right = SrcRight, - locked = SrcLocked }] = Next = - ets:lookup(FileSummaryEts, Src), - case SrcRight of - undefined -> not_found; - _ -> case (DstValid + SrcValid =< FileSizeLimit) andalso - (DstValid > 0) andalso (SrcValid > 0) andalso - not (DstLocked orelse SrcLocked) of - true -> {Src, Dst}; - false -> find_files_to_combine( - FileSummaryEts, FileSizeLimit, Next) - end - end - end. - -delete_file_if_empty(File, State = #msstate { current_file = File }) -> - State; -delete_file_if_empty(File, State = #msstate { - gc_pid = GCPid, - file_summary_ets = FileSummaryEts, - pending_gc_completion = Pending }) -> - [#file_summary { valid_total_size = ValidData, - locked = false }] = - ets:lookup(FileSummaryEts, File), - case ValidData of - %% don't delete the file_summary_ets entry for File here - %% because we could have readers which need to be able to - %% decrement the readers count. - 0 -> true = ets:update_element(FileSummaryEts, File, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:delete(GCPid, File), - Pending1 = orddict_store(File, [], Pending), - close_handle(File, - State #msstate { pending_gc_completion = Pending1 }); - _ -> State - end. - -cleanup_after_file_deletion(File, - #msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - %% Ensure that any clients that have open fhs to the file close - %% them before using them again. This has to be done here (given - %% it's done in the msg_store, and not the gc), and not when - %% starting up the GC, because if done when starting up the GC, - %% the client could find the close, and close and reopen the fh, - %% whilst the GC is waiting for readers to disappear, before it's - %% actually done the GC. - true = mark_handle_to_close(Clients, FileHandlesEts, File, true), - [#file_summary { left = Left, - right = Right, - locked = true, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - %% We'll never delete the current file, so right is never undefined - true = Right =/= undefined, %% ASSERTION - true = ets:update_element(FileSummaryEts, Right, - {#file_summary.left, Left}), - %% ensure the double linked list is maintained - true = case Left of - undefined -> true; %% File is the eldest file (left-most) - _ -> ets:update_element(FileSummaryEts, Left, - {#file_summary.right, Right}) - end, - true = ets:delete(FileSummaryEts, File), - ok. - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- external -%%---------------------------------------------------------------------------- - -has_readers(File, #gc_state { file_summary_ets = FileSummaryEts }) -> - [#file_summary { locked = true, readers = Count }] = - ets:lookup(FileSummaryEts, File), - Count /= 0. - -combine_files(Source, Destination, - State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { - readers = 0, - left = Destination, - valid_total_size = SourceValid, - file_size = SourceFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Source), - [#file_summary { - readers = 0, - right = Source, - valid_total_size = DestinationValid, - file_size = DestinationFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Destination), - - SourceName = filenum_to_name(Source), - DestinationName = filenum_to_name(Destination), - {ok, SourceHdl} = open_file(Dir, SourceName, - ?READ_AHEAD_MODE), - {ok, DestinationHdl} = open_file(Dir, DestinationName, - ?READ_AHEAD_MODE ++ ?WRITE_MODE), - TotalValidData = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - {DestinationWorkList, DestinationValid} = - load_and_vacuum_message_file(Destination, State), - {DestinationContiguousTop, DestinationWorkListTail} = - drop_contiguous_block_prefix(DestinationWorkList), - case DestinationWorkListTail of - [] -> ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData); - _ -> Tmp = filename:rootname(DestinationName) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = open_file(Dir, Tmp, ?READ_AHEAD_MODE++?WRITE_MODE), - ok = copy_messages( - DestinationWorkListTail, DestinationContiguousTop, - DestinationValid, DestinationHdl, TmpHdl, Destination, - State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage - %% from Destination, and index_state has been updated to - %% reflect the compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file_handle_cache:position(TmpHdl, 0), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData), - {ok, TmpSize} = - file_handle_cache:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file_handle_cache:sync(DestinationHdl), - ok = file_handle_cache:delete(TmpHdl) - end, - {SourceWorkList, SourceValid} = load_and_vacuum_message_file(Source, State), - ok = copy_messages(SourceWorkList, DestinationValid, TotalValidData, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file_handle_cache:close(DestinationHdl), - ok = file_handle_cache:close(SourceHdl), - - %% don't update dest.right, because it could be changing at the - %% same time - true = ets:update_element( - FileSummaryEts, Destination, - [{#file_summary.valid_total_size, TotalValidData}, - {#file_summary.file_size, TotalValidData}]), - - Reclaimed = SourceFileSize + DestinationFileSize - TotalValidData, - gen_server2:cast(Server, {combine_files, Source, Destination, Reclaimed}), - safe_file_delete_fun(Source, Dir, FileHandlesEts). - -delete_file(File, State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { valid_total_size = 0, - locked = true, - file_size = FileSize, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - {[], 0} = load_and_vacuum_message_file(File, State), - gen_server2:cast(Server, {delete_file, File, FileSize}), - safe_file_delete_fun(File, Dir, FileHandlesEts). - -load_and_vacuum_message_file(File, #gc_state { dir = Dir, - index_module = Index, - index_state = IndexState }) -> - %% Messages here will be end-of-file at start-of-list - {ok, Messages, _FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - %% foldl will reverse so will end up with msgs in ascending offset order - lists:foldl( - fun ({MsgId, TotalSize, Offset}, Acc = {List, Size}) -> - case Index:lookup(MsgId, IndexState) of - #msg_location { file = File, total_size = TotalSize, - offset = Offset, ref_count = 0 } = Entry -> - ok = Index:delete_object(Entry, IndexState), - Acc; - #msg_location { file = File, total_size = TotalSize, - offset = Offset } = Entry -> - {[ Entry | List ], TotalSize + Size}; - _ -> - Acc - end - end, {[], 0}, Messages). - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, #gc_state { index_module = Index, - index_state = IndexState }) -> - Copy = fun ({BlockStart, BlockEnd}) -> - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file_handle_cache:position(SourceHdl, BlockStart), - {ok, BSize} = - file_handle_cache:copy(SourceHdl, DestinationHdl, BSize) - end, - case - lists:foldl( - fun (#msg_location { msg_id = MsgId, offset = Offset, - total_size = TotalSize }, - {CurOffset, Block = {BlockStart, BlockEnd}}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - %% update MsgLocation to reflect change of file and offset - ok = Index:update_fields(MsgId, - [{#msg_location.file, Destination}, - {#msg_location.offset, CurOffset}], - IndexState), - {CurOffset + TotalSize, - case BlockEnd of - undefined -> - %% base case, called only for the first list elem - {Offset, Offset + TotalSize}; - Offset -> - %% extend the current block because the - %% next msg follows straight on - {BlockStart, BlockEnd + TotalSize}; - _ -> - %% found a gap, so actually do the work for - %% the previous block - Copy(Block), - {Offset, Offset + TotalSize} - end} - end, {InitOffset, {undefined, undefined}}, WorkList) of - {FinalOffset, Block} -> - case WorkList of - [] -> ok; - _ -> Copy(Block), %% do the last remaining block - ok = file_handle_cache:sync(DestinationHdl) - end; - {FinalOffsetZ, _Block} -> - {gc_error, [{expected, FinalOffset}, - {got, FinalOffsetZ}, - {destination, Destination}]} - end. - -force_recovery(BaseDir, Store) -> - Dir = filename:join(BaseDir, atom_to_list(Store)), - ok = file:delete(filename:join(Dir, ?CLEAN_FILENAME)), - recover_crashed_compactions(BaseDir), - ok. - -foreach_file(D, Fun, Files) -> - [ok = Fun(filename:join(D, File)) || File <- Files]. - -foreach_file(D1, D2, Fun, Files) -> - [ok = Fun(filename:join(D1, File), filename:join(D2, File)) || File <- Files]. - -transform_dir(BaseDir, Store, TransformFun) -> - Dir = filename:join(BaseDir, atom_to_list(Store)), - TmpDir = filename:join(Dir, ?TRANSFORM_TMP), - TransformFile = fun (A, B) -> transform_msg_file(A, B, TransformFun) end, - CopyFile = fun (Src, Dst) -> {ok, _Bytes} = file:copy(Src, Dst), ok end, - case filelib:is_dir(TmpDir) of - true -> throw({error, transform_failed_previously}); - false -> FileList = list_sorted_file_names(Dir, ?FILE_EXTENSION), - foreach_file(Dir, TmpDir, TransformFile, FileList), - foreach_file(Dir, fun file:delete/1, FileList), - foreach_file(TmpDir, Dir, CopyFile, FileList), - foreach_file(TmpDir, fun file:delete/1, FileList), - ok = file:del_dir(TmpDir) - end. - -transform_msg_file(FileOld, FileNew, TransformFun) -> - ok = rabbit_misc:ensure_parent_dirs_exist(FileNew), - {ok, RefOld} = file_handle_cache:open(FileOld, [raw, binary, read], []), - {ok, RefNew} = file_handle_cache:open(FileNew, [raw, binary, write], - [{write_buffer, - ?HANDLE_CACHE_BUFFER_SIZE}]), - {ok, _Acc, _IgnoreSize} = - rabbit_msg_file:scan( - RefOld, filelib:file_size(FileOld), - fun({MsgId, _Size, _Offset, BinMsg}, ok) -> - {ok, MsgNew} = case binary_to_term(BinMsg) of - <<>> -> {ok, <<>>}; %% dying client marker - Msg -> TransformFun(Msg) - end, - {ok, _} = rabbit_msg_file:append(RefNew, MsgId, MsgNew), - ok - end, ok), - ok = file_handle_cache:close(RefOld), - ok = file_handle_cache:close(RefNew), - ok. diff --git a/src/rabbit_msg_store_ets_index.erl b/src/rabbit_msg_store_ets_index.erl deleted file mode 100644 index d6dc5568..00000000 --- a/src/rabbit_msg_store_ets_index.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_ets_index). - --behaviour(rabbit_msg_store_index). - --export([new/1, recover/1, - lookup/2, insert/2, update/2, update_fields/3, delete/2, - delete_object/2, delete_by_file/2, terminate/1]). - --define(MSG_LOC_NAME, rabbit_msg_store_ets_index). --define(FILENAME, "msg_store_index.ets"). - --include("rabbit_msg_store_index.hrl"). - --record(state, { table, dir }). - -new(Dir) -> - file:delete(filename:join(Dir, ?FILENAME)), - Tid = ets:new(?MSG_LOC_NAME, [set, public, {keypos, #msg_location.msg_id}]), - #state { table = Tid, dir = Dir }. - -recover(Dir) -> - Path = filename:join(Dir, ?FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> file:delete(Path), - {ok, #state { table = Tid, dir = Dir }}; - Error -> Error - end. - -lookup(Key, State) -> - case ets:lookup(State #state.table, Key) of - [] -> not_found; - [Entry] -> Entry - end. - -insert(Obj, State) -> - true = ets:insert_new(State #state.table, Obj), - ok. - -update(Obj, State) -> - true = ets:insert(State #state.table, Obj), - ok. - -update_fields(Key, Updates, State) -> - true = ets:update_element(State #state.table, Key, Updates), - ok. - -delete(Key, State) -> - true = ets:delete(State #state.table, Key), - ok. - -delete_object(Obj, State) -> - true = ets:delete_object(State #state.table, Obj), - ok. - -delete_by_file(File, State) -> - MatchHead = #msg_location { file = File, _ = '_' }, - ets:select_delete(State #state.table, [{MatchHead, [], [true]}]), - ok. - -terminate(#state { table = MsgLocations, dir = Dir }) -> - ok = ets:tab2file(MsgLocations, filename:join(Dir, ?FILENAME), - [{extended_info, [object_count]}]), - ets:delete(MsgLocations). diff --git a/src/rabbit_msg_store_gc.erl b/src/rabbit_msg_store_gc.erl deleted file mode 100644 index 77f1f04e..00000000 --- a/src/rabbit_msg_store_gc.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_gc). - --behaviour(gen_server2). - --export([start_link/1, combine/3, delete/2, no_readers/2, stop/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - --record(state, - { pending_no_readers, - on_action, - msg_store_state - }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (rabbit_msg_store:gc_state()) -> - rabbit_types:ok_pid_or_error()). --spec(combine/3 :: (pid(), rabbit_msg_store:file_num(), - rabbit_msg_store:file_num()) -> 'ok'). --spec(delete/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(no_readers/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(stop/1 :: (pid()) -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(MsgStoreState) -> - gen_server2:start_link(?MODULE, [MsgStoreState], - [{timeout, infinity}]). - -combine(Server, Source, Destination) -> - gen_server2:cast(Server, {combine, Source, Destination}). - -delete(Server, File) -> - gen_server2:cast(Server, {delete, File}). - -no_readers(Server, File) -> - gen_server2:cast(Server, {no_readers, File}). - -stop(Server) -> - gen_server2:call(Server, stop, infinity). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- - -init([MsgStoreState]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - {ok, #state { pending_no_readers = dict:new(), - on_action = [], - msg_store_state = MsgStoreState }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}. - -handle_cast({combine, Source, Destination}, State) -> - {noreply, attempt_action(combine, [Source, Destination], State), hibernate}; - -handle_cast({delete, File}, State) -> - {noreply, attempt_action(delete, [File], State), hibernate}; - -handle_cast({no_readers, File}, - State = #state { pending_no_readers = Pending }) -> - {noreply, case dict:find(File, Pending) of - error -> - State; - {ok, {Action, Files}} -> - Pending1 = dict:erase(File, Pending), - attempt_action( - Action, Files, - State #state { pending_no_readers = Pending1 }) - end, hibernate}; - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, State, hibernate}. - -handle_info(Info, State) -> - {stop, {unhandled_info, Info}, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -attempt_action(Action, Files, - State = #state { pending_no_readers = Pending, - on_action = Thunks, - msg_store_state = MsgStoreState }) -> - case [File || File <- Files, - rabbit_msg_store:has_readers(File, MsgStoreState)] of - [] -> State #state { - on_action = lists:filter( - fun (Thunk) -> not Thunk() end, - [do_action(Action, Files, MsgStoreState) | - Thunks]) }; - [File | _] -> Pending1 = dict:store(File, {Action, Files}, Pending), - State #state { pending_no_readers = Pending1 } - end. - -do_action(combine, [Source, Destination], MsgStoreState) -> - rabbit_msg_store:combine_files(Source, Destination, MsgStoreState); -do_action(delete, [File], MsgStoreState) -> - rabbit_msg_store:delete_file(File, MsgStoreState). diff --git a/src/rabbit_msg_store_index.erl b/src/rabbit_msg_store_index.erl deleted file mode 100644 index ef8b7cdf..00000000 --- a/src/rabbit_msg_store_index.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_index). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [{new, 1}, - {recover, 1}, - {lookup, 2}, - {insert, 2}, - {update, 2}, - {update_fields, 3}, - {delete, 2}, - {delete_by_file, 2}, - {terminate, 1}]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl deleted file mode 100644 index c500548a..00000000 --- a/src/rabbit_net.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_net). --include("rabbit.hrl"). - --export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - async_recv/3, port_command/2, send/2, close/1, - sockname/1, peername/1, peercert/1]). - -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([socket/0]). - --type(stat_option() :: - 'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' | - 'send_cnt' | 'send_max' | 'send_avg' | 'send_oct' | 'send_pend'). --type(ok_val_or_error(A) :: rabbit_types:ok_or_error2(A, any())). --type(ok_or_any_error() :: rabbit_types:ok_or_error(any())). --type(socket() :: port() | #ssl_socket{}). - --spec(is_ssl/1 :: (socket()) -> boolean()). --spec(ssl_info/1 :: (socket()) - -> 'nossl' | ok_val_or_error( - {atom(), {atom(), atom(), atom()}})). --spec(controlling_process/2 :: (socket(), pid()) -> ok_or_any_error()). --spec(getstat/2 :: - (socket(), [stat_option()]) - -> ok_val_or_error([{stat_option(), integer()}])). --spec(async_recv/3 :: - (socket(), integer(), timeout()) -> rabbit_types:ok(any())). --spec(port_command/2 :: (socket(), iolist()) -> 'true'). --spec(send/2 :: (socket(), binary() | iolist()) -> ok_or_any_error()). --spec(close/1 :: (socket()) -> ok_or_any_error()). --spec(sockname/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peername/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peercert/1 :: - (socket()) - -> 'nossl' | ok_val_or_error(rabbit_ssl:certificate())). - --endif. - -%%--------------------------------------------------------------------------- - --define(IS_SSL(Sock), is_record(Sock, ssl_socket)). - -is_ssl(Sock) -> ?IS_SSL(Sock). - -ssl_info(Sock) when ?IS_SSL(Sock) -> - ssl:connection_info(Sock#ssl_socket.ssl); -ssl_info(_Sock) -> - nossl. - -controlling_process(Sock, Pid) when ?IS_SSL(Sock) -> - ssl:controlling_process(Sock#ssl_socket.ssl, Pid); -controlling_process(Sock, Pid) when is_port(Sock) -> - gen_tcp:controlling_process(Sock, Pid). - -getstat(Sock, Stats) when ?IS_SSL(Sock) -> - inet:getstat(Sock#ssl_socket.tcp, Stats); -getstat(Sock, Stats) when is_port(Sock) -> - inet:getstat(Sock, Stats). - -async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> - Pid = self(), - Ref = make_ref(), - - spawn(fun () -> Pid ! {inet_async, Sock, Ref, - ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)} - end), - - {ok, Ref}; -async_recv(Sock, Length, infinity) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, -1); -async_recv(Sock, Length, Timeout) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, Timeout). - -port_command(Sock, Data) when ?IS_SSL(Sock) -> - case ssl:send(Sock#ssl_socket.ssl, Data) of - ok -> self() ! {inet_reply, Sock, ok}, - true; - {error, Reason} -> erlang:error(Reason) - end; -port_command(Sock, Data) when is_port(Sock) -> - erlang:port_command(Sock, Data). - -send(Sock, Data) when ?IS_SSL(Sock) -> ssl:send(Sock#ssl_socket.ssl, Data); -send(Sock, Data) when is_port(Sock) -> gen_tcp:send(Sock, Data). - -close(Sock) when ?IS_SSL(Sock) -> ssl:close(Sock#ssl_socket.ssl); -close(Sock) when is_port(Sock) -> gen_tcp:close(Sock). - -sockname(Sock) when ?IS_SSL(Sock) -> ssl:sockname(Sock#ssl_socket.ssl); -sockname(Sock) when is_port(Sock) -> inet:sockname(Sock). - -peername(Sock) when ?IS_SSL(Sock) -> ssl:peername(Sock#ssl_socket.ssl); -peername(Sock) when is_port(Sock) -> inet:peername(Sock). - -peercert(Sock) when ?IS_SSL(Sock) -> ssl:peercert(Sock#ssl_socket.ssl); -peercert(Sock) when is_port(Sock) -> nossl. diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl deleted file mode 100644 index 53be0190..00000000 --- a/src/rabbit_networking.erl +++ /dev/null @@ -1,394 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_networking). - --export([boot/0, start/0, start_tcp_listener/1, start_ssl_listener/2, - stop_tcp_listener/1, on_node_down/1, active_listeners/0, - node_listeners/1, connections/0, connection_info_keys/0, - connection_info/1, connection_info/2, - connection_info_all/0, connection_info_all/1, - close_connection/2]). - -%%used by TCP-based transports, e.g. STOMP adapter --export([check_tcp_listener_address/2, - ensure_ssl/0, ssl_transform_fun/1]). - --export([tcp_listener_started/3, tcp_listener_stopped/3, - start_client/1, start_ssl_client/2]). - --include("rabbit.hrl"). --include_lib("kernel/include/inet.hrl"). - --define(SSL_TIMEOUT, 5). %% seconds - --define(FIRST_TEST_BIND_PORT, 10000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([ip_port/0, hostname/0]). - --type(family() :: atom()). --type(listener_config() :: ip_port() | - {hostname(), ip_port()} | - {hostname(), ip_port(), family()}). - --spec(start/0 :: () -> 'ok'). --spec(start_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(start_ssl_listener/2 :: - (listener_config(), rabbit_types:infos()) -> 'ok'). --spec(stop_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(active_listeners/0 :: () -> [rabbit_types:listener()]). --spec(node_listeners/1 :: (node()) -> [rabbit_types:listener()]). --spec(connections/0 :: () -> [rabbit_types:connection()]). --spec(connection_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(connection_info/1 :: - (rabbit_types:connection()) -> rabbit_types:infos()). --spec(connection_info/2 :: - (rabbit_types:connection(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(connection_info_all/0 :: () -> [rabbit_types:infos()]). --spec(connection_info_all/1 :: - (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(close_connection/2 :: (pid(), string()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(check_tcp_listener_address/2 :: (atom(), listener_config()) - -> [{inet:ip_address(), ip_port(), family(), atom()}]). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - ok = start(), - ok = boot_tcp(), - ok = boot_ssl(). - -boot_tcp() -> - {ok, TcpListeners} = application:get_env(tcp_listeners), - [ok = start_tcp_listener(Listener) || Listener <- TcpListeners], - ok. - -boot_ssl() -> - case application:get_env(ssl_listeners) of - {ok, []} -> - ok; - {ok, SslListeners} -> - [start_ssl_listener(Listener, ensure_ssl()) - || Listener <- SslListeners], - ok - end. - -start() -> - {ok,_} = supervisor2:start_child( - rabbit_sup, - {rabbit_tcp_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_tcp_client_sup}, - {rabbit_connection_sup,start_link,[]}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%% inet_parse:address takes care of ip string, like "0.0.0.0" -%% inet:getaddr returns immediately for ip tuple {0,0,0,0}, -%% and runs 'inet_gethost' port process for dns lookups. -%% On Windows inet:getaddr runs dns resolver for ip string, which may fail. - -getaddr(Host, Family) -> - case inet_parse:address(Host) of - {ok, IPAddress} -> [{IPAddress, resolve_family(IPAddress, Family)}]; - {error, _} -> gethostaddr(Host, Family) - end. - -gethostaddr(Host, auto) -> - Lookups = [{Family, inet:getaddr(Host, Family)} || Family <- [inet, inet6]], - case [{IP, Family} || {Family, {ok, IP}} <- Lookups] of - [] -> host_lookup_error(Host, Lookups); - IPs -> IPs - end; - -gethostaddr(Host, Family) -> - case inet:getaddr(Host, Family) of - {ok, IPAddress} -> [{IPAddress, Family}]; - {error, Reason} -> host_lookup_error(Host, Reason) - end. - -host_lookup_error(Host, Reason) -> - error_logger:error_msg("invalid host ~p - ~p~n", [Host, Reason]), - throw({error, {invalid_host, Host, Reason}}). - -resolve_family({_,_,_,_}, auto) -> inet; -resolve_family({_,_,_,_,_,_,_,_}, auto) -> inet6; -resolve_family(IP, auto) -> throw({error, {strange_family, IP}}); -resolve_family(_, F) -> F. - -ensure_ssl() -> - ok = rabbit_misc:start_applications([crypto, public_key, ssl]), - {ok, SslOptsConfig} = application:get_env(rabbit, ssl_options), - - % unknown_ca errors are silently ignored prior to R14B unless we - % supply this verify_fun - remove when at least R14B is required - case proplists:get_value(verify, SslOptsConfig, verify_none) of - verify_none -> SslOptsConfig; - verify_peer -> [{verify_fun, fun([]) -> true; - ([_|_]) -> false - end} - | SslOptsConfig] - end. - -ssl_transform_fun(SslOpts) -> - fun (Sock) -> - case catch ssl:ssl_accept(Sock, SslOpts, ?SSL_TIMEOUT * 1000) of - {ok, SslSock} -> - rabbit_log:info("upgraded TCP connection ~p to SSL~n", - [self()]), - {ok, #ssl_socket{tcp = Sock, ssl = SslSock}}; - {error, Reason} -> - {error, {ssl_upgrade_error, Reason}}; - {'EXIT', Reason} -> - {error, {ssl_upgrade_failure, Reason}} - end - end. - -check_tcp_listener_address(NamePrefix, Port) when is_integer(Port) -> - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {"auto", Port}) -> - %% Variant to prevent lots of hacking around in bash and batch files - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {Host, Port}) -> - %% auto: determine family IPv4 / IPv6 after converting to IP address - check_tcp_listener_address(NamePrefix, {Host, Port, auto}); - -check_tcp_listener_address(NamePrefix, {Host, Port, Family0}) -> - if is_integer(Port) andalso (Port >= 0) andalso (Port =< 65535) -> ok; - true -> error_logger:error_msg("invalid port ~p - not 0..65535~n", - [Port]), - throw({error, {invalid_port, Port}}) - end, - [{IPAddress, Port, Family, - rabbit_misc:tcp_name(NamePrefix, IPAddress, Port)} || - {IPAddress, Family} <- getaddr(Host, Family0)]. - -check_tcp_listener_address_auto(NamePrefix, Port) -> - lists:append([check_tcp_listener_address(NamePrefix, Listener) || - Listener <- port_to_listeners(Port)]). - -start_tcp_listener(Listener) -> - start_listener(Listener, amqp, "TCP Listener", - {?MODULE, start_client, []}). - -start_ssl_listener(Listener, SslOpts) -> - start_listener(Listener, 'amqp/ssl', "SSL Listener", - {?MODULE, start_ssl_client, [SslOpts]}). - -start_listener(Listener, Protocol, Label, OnConnect) -> - [start_listener0(Spec, Protocol, Label, OnConnect) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -start_listener0({IPAddress, Port, Family, Name}, Protocol, Label, OnConnect) -> - {ok,_} = supervisor:start_child( - rabbit_sup, - {Name, - {tcp_listener_sup, start_link, - [IPAddress, Port, [Family | tcp_opts()], - {?MODULE, tcp_listener_started, [Protocol]}, - {?MODULE, tcp_listener_stopped, [Protocol]}, - OnConnect, Label]}, - transient, infinity, supervisor, [tcp_listener_sup]}). - -stop_tcp_listener(Listener) -> - [stop_tcp_listener0(Spec) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -stop_tcp_listener0({IPAddress, Port, _Family, Name}) -> - Name = rabbit_misc:tcp_name(rabbit_tcp_listener_sup, IPAddress, Port), - ok = supervisor:terminate_child(rabbit_sup, Name), - ok = supervisor:delete_child(rabbit_sup, Name). - -tcp_listener_started(Protocol, IPAddress, Port) -> - %% We need the ip to distinguish e.g. 0.0.0.0 and 127.0.0.1 - %% We need the host so we can distinguish multiple instances of the above - %% in a cluster. - ok = mnesia:dirty_write( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -tcp_listener_stopped(Protocol, IPAddress, Port) -> - ok = mnesia:dirty_delete_object( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -active_listeners() -> - rabbit_misc:dirty_read_all(rabbit_listener). - -node_listeners(Node) -> - mnesia:dirty_read(rabbit_listener, Node). - -on_node_down(Node) -> - ok = mnesia:dirty_delete(rabbit_listener, Node). - -start_client(Sock, SockTransform) -> - {ok, _Child, Reader} = supervisor:start_child(rabbit_tcp_client_sup, []), - ok = rabbit_net:controlling_process(Sock, Reader), - Reader ! {go, Sock, SockTransform}, - Reader. - -start_client(Sock) -> - start_client(Sock, fun (S) -> {ok, S} end). - -start_ssl_client(SslOpts, Sock) -> - start_client(Sock, ssl_transform_fun(SslOpts)). - -connections() -> - [rabbit_connection_sup:reader(ConnSup) || - Node <- rabbit_mnesia:running_clustered_nodes(), - {_, ConnSup, supervisor, _} - <- supervisor:which_children({rabbit_tcp_client_sup, Node})]. - -connection_info_keys() -> rabbit_reader:info_keys(). - -connection_info(Pid) -> rabbit_reader:info(Pid). -connection_info(Pid, Items) -> rabbit_reader:info(Pid, Items). - -connection_info_all() -> cmap(fun (Q) -> connection_info(Q) end). -connection_info_all(Items) -> cmap(fun (Q) -> connection_info(Q, Items) end). - -close_connection(Pid, Explanation) -> - case lists:member(Pid, connections()) of - true -> rabbit_reader:shutdown(Pid, Explanation); - false -> throw({error, {not_a_connection_pid, Pid}}) - end. - -%%-------------------------------------------------------------------- - -tcp_host({0,0,0,0}) -> - hostname(); - -tcp_host({0,0,0,0,0,0,0,0}) -> - hostname(); - -tcp_host(IPAddress) -> - case inet:gethostbyaddr(IPAddress) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> rabbit_misc:ntoa(IPAddress) - end. - -hostname() -> - {ok, Hostname} = inet:gethostname(), - case inet:gethostbyname(Hostname) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> Hostname - end. - -cmap(F) -> rabbit_misc:filter_exit_map(F, connections()). - -tcp_opts() -> - {ok, Opts} = application:get_env(rabbit, tcp_listen_options), - Opts. - -%%-------------------------------------------------------------------- - -%% There are three kinds of machine (for our purposes). -%% -%% * Those which treat IPv4 addresses as a special kind of IPv6 address -%% ("Single stack") -%% - Linux by default, Windows Vista and later -%% - We also treat any (hypothetical?) IPv6-only machine the same way -%% * Those which consider IPv6 and IPv4 to be completely separate things -%% ("Dual stack") -%% - OpenBSD, Windows XP / 2003, Linux if so configured -%% * Those which do not support IPv6. -%% - Ancient/weird OSes, Linux if so configured -%% -%% How to reconfigure Linux to test this: -%% Single stack (default): -%% echo 0 > /proc/sys/net/ipv6/bindv6only -%% Dual stack: -%% echo 1 > /proc/sys/net/ipv6/bindv6only -%% IPv4 only: -%% add ipv6.disable=1 to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub then -%% sudo update-grub && sudo reboot -%% -%% This matters in (and only in) the case where the sysadmin (or the -%% app descriptor) has only supplied a port and we wish to bind to -%% "all addresses". This means different things depending on whether -%% we're single or dual stack. On single stack binding to "::" -%% implicitly includes all IPv4 addresses, and subsequently attempting -%% to bind to "0.0.0.0" will fail. On dual stack, binding to "::" will -%% only bind to IPv6 addresses, and we need another listener bound to -%% "0.0.0.0" for IPv4. Finally, on IPv4-only systems we of course only -%% want to bind to "0.0.0.0". -%% -%% Unfortunately it seems there is no way to detect single vs dual stack -%% apart from attempting to bind to the port. -port_to_listeners(Port) -> - IPv4 = {"0.0.0.0", Port, inet}, - IPv6 = {"::", Port, inet6}, - case ipv6_status(?FIRST_TEST_BIND_PORT) of - single_stack -> [IPv6]; - ipv6_only -> [IPv6]; - dual_stack -> [IPv6, IPv4]; - ipv4_only -> [IPv4] - end. - -ipv6_status(TestPort) -> - IPv4 = [inet, {ip, {0,0,0,0}}], - IPv6 = [inet6, {ip, {0,0,0,0,0,0,0,0}}], - case gen_tcp:listen(TestPort, IPv6) of - {ok, LSock6} -> - case gen_tcp:listen(TestPort, IPv4) of - {ok, LSock4} -> - %% Dual stack - gen_tcp:close(LSock6), - gen_tcp:close(LSock4), - dual_stack; - %% Checking the error here would only let us - %% distinguish single stack IPv6 / IPv4 vs IPv6 only, - %% which we figure out below anyway. - {error, _} -> - gen_tcp:close(LSock6), - case gen_tcp:listen(TestPort, IPv4) of - %% Single stack - {ok, LSock4} -> gen_tcp:close(LSock4), - single_stack; - %% IPv6-only machine. Welcome to the future. - {error, eafnosupport} -> ipv6_only; - %% Dual stack machine with something already - %% on IPv4. - {error, _} -> ipv6_status(TestPort + 1) - end - end; - {error, eafnosupport} -> - %% IPv4-only machine. Welcome to the 90s. - ipv4_only; - {error, _} -> - %% Port in use - ipv6_status(TestPort + 1) - end. diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl deleted file mode 100644 index 1f30a2fc..00000000 --- a/src/rabbit_node_monitor.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_node_monitor). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([notify_cluster/0, rabbit_running_on/1]). - --define(SERVER, ?MODULE). --define(RABBIT_UP_RPC_TIMEOUT, 2000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(rabbit_running_on/1 :: (node()) -> 'ok'). --spec(notify_cluster/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -rabbit_running_on(Node) -> - gen_server:cast(rabbit_node_monitor, {rabbit_running_on, Node}). - -notify_cluster() -> - Node = node(), - Nodes = rabbit_mnesia:running_clustered_nodes() -- [Node], - %% notify other rabbits of this rabbit - case rpc:multicall(Nodes, rabbit_node_monitor, rabbit_running_on, - [Node], ?RABBIT_UP_RPC_TIMEOUT) of - {_, [] } -> ok; - {_, Bad} -> rabbit_log:info("failed to contact nodes ~p~n", [Bad]) - end, - %% register other active rabbits with this rabbit - [ rabbit_node_monitor:rabbit_running_on(N) || N <- Nodes ], - ok. - -%%-------------------------------------------------------------------- - -init([]) -> - ok = net_kernel:monitor_nodes(true), - {ok, no_state}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({rabbit_running_on, Node}, State) -> - rabbit_log:info("node ~p up~n", [Node]), - erlang:monitor(process, {rabbit, Node}), - ok = rabbit_alarm:on_node_up(Node), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({nodedown, Node}, State) -> - rabbit_log:info("node ~p down~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info({'DOWN', _MRef, process, {rabbit, Node}, _Reason}, State) -> - rabbit_log:info("node ~p lost 'rabbit'~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -%% TODO: This may turn out to be a performance hog when there are lots -%% of nodes. We really only need to execute some of these statements -%% on *one* node, rather than all of them. -handle_dead_rabbit(Node) -> - ok = rabbit_networking:on_node_down(Node), - ok = rabbit_amqqueue:on_node_down(Node), - ok = rabbit_alarm:on_node_down(Node). diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl deleted file mode 100644 index 8800e8d6..00000000 --- a/src/rabbit_prelaunch.erl +++ /dev/null @@ -1,276 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_prelaunch). - --export([start/0, stop/0]). - --define(BaseApps, [rabbit]). --define(ERROR_CODE, 1). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - io:format("Activating RabbitMQ plugins ...~n"), - - %% Determine our various directories - [PluginDir, UnpackedPluginDir, NodeStr] = init:get_plain_arguments(), - RootName = UnpackedPluginDir ++ "/rabbit", - - %% Unpack any .ez plugins - unpack_ez_plugins(PluginDir, UnpackedPluginDir), - - %% Build a list of required apps based on the fixed set, and any plugins - PluginApps = find_plugins(PluginDir) ++ find_plugins(UnpackedPluginDir), - RequiredApps = ?BaseApps ++ PluginApps, - - %% Build the entire set of dependencies - this will load the - %% applications along the way - AllApps = case catch sets:to_list(expand_dependencies(RequiredApps)) of - {failed_to_load_app, App, Err} -> - terminate("failed to load application ~s:~n~p", - [App, Err]); - AppList -> - AppList - end, - AppVersions = [determine_version(App) || App <- AllApps], - RabbitVersion = proplists:get_value(rabbit, AppVersions), - - %% Build the overall release descriptor - RDesc = {release, - {"rabbit", RabbitVersion}, - {erts, erlang:system_info(version)}, - AppVersions}, - - %% Write it out to $RABBITMQ_PLUGINS_EXPAND_DIR/rabbit.rel - file:write_file(RootName ++ ".rel", io_lib:format("~p.~n", [RDesc])), - - %% Compile the script - ScriptFile = RootName ++ ".script", - case systools:make_script(RootName, [local, silent, exref]) of - {ok, Module, Warnings} -> - %% This gets lots of spurious no-source warnings when we - %% have .ez files, so we want to supress them to prevent - %% hiding real issues. On Ubuntu, we also get warnings - %% about kernel/stdlib sources being out of date, which we - %% also ignore for the same reason. - WarningStr = Module:format_warning( - [W || W <- Warnings, - case W of - {warning, {source_not_found, _}} -> false; - {warning, {obj_out_of_date, {_,_,WApp,_,_}}} - when WApp == mnesia; - WApp == stdlib; - WApp == kernel; - WApp == sasl; - WApp == crypto; - WApp == os_mon -> false; - _ -> true - end]), - case length(WarningStr) of - 0 -> ok; - _ -> io:format("~s", [WarningStr]) - end, - ok; - {error, Module, Error} -> - terminate("generation of boot script file ~s failed:~n~s", - [ScriptFile, Module:format_error(Error)]) - end, - - case post_process_script(ScriptFile) of - ok -> ok; - {error, Reason} -> - terminate("post processing of boot script file ~s failed:~n~w", - [ScriptFile, Reason]) - end, - case systools:script2boot(RootName) of - ok -> ok; - error -> terminate("failed to compile boot script file ~s", - [ScriptFile]) - end, - io:format("~w plugins activated:~n", [length(PluginApps)]), - [io:format("* ~s-~s~n", [App, proplists:get_value(App, AppVersions)]) - || App <- PluginApps], - io:nl(), - - ok = duplicate_node_check(NodeStr), - - terminate(0), - ok. - -stop() -> - ok. - -determine_version(App) -> - application:load(App), - {ok, Vsn} = application:get_key(App, vsn), - {App, Vsn}. - -delete_recursively(Fn) -> - case filelib:is_dir(Fn) and not(is_symlink(Fn)) of - true -> - case file:list_dir(Fn) of - {ok, Files} -> - case lists:foldl(fun ( Fn1, ok) -> delete_recursively( - Fn ++ "/" ++ Fn1); - (_Fn1, Err) -> Err - end, ok, Files) of - ok -> case file:del_dir(Fn) of - ok -> ok; - {error, E} -> {error, - {cannot_delete, Fn, E}} - end; - Err -> Err - end; - {error, E} -> - {error, {cannot_list_files, Fn, E}} - end; - false -> - case filelib:is_file(Fn) of - true -> case file:delete(Fn) of - ok -> ok; - {error, E} -> {error, {cannot_delete, Fn, E}} - end; - false -> ok - end - end. - -is_symlink(Name) -> - case file:read_link(Name) of - {ok, _} -> true; - _ -> false - end. - -unpack_ez_plugins(SrcDir, DestDir) -> - %% Eliminate the contents of the destination directory - case delete_recursively(DestDir) of - ok -> ok; - {error, E} -> terminate("Could not delete dir ~s (~p)", [DestDir, E]) - end, - case filelib:ensure_dir(DestDir ++ "/") of - ok -> ok; - {error, E2} -> terminate("Could not create dir ~s (~p)", [DestDir, E2]) - end, - [unpack_ez_plugin(PluginName, DestDir) || - PluginName <- filelib:wildcard(SrcDir ++ "/*.ez")]. - -unpack_ez_plugin(PluginFn, PluginDestDir) -> - zip:unzip(PluginFn, [{cwd, PluginDestDir}]), - ok. - -find_plugins(PluginDir) -> - [prepare_dir_plugin(PluginName) || - PluginName <- filelib:wildcard(PluginDir ++ "/*/ebin/*.app")]. - -prepare_dir_plugin(PluginAppDescFn) -> - %% Add the plugin ebin directory to the load path - PluginEBinDirN = filename:dirname(PluginAppDescFn), - code:add_path(PluginEBinDirN), - - %% We want the second-last token - NameTokens = string:tokens(PluginAppDescFn,"/."), - PluginNameString = lists:nth(length(NameTokens) - 1, NameTokens), - list_to_atom(PluginNameString). - -expand_dependencies(Pending) -> - expand_dependencies(sets:new(), Pending). -expand_dependencies(Current, []) -> - Current; -expand_dependencies(Current, [Next|Rest]) -> - case sets:is_element(Next, Current) of - true -> - expand_dependencies(Current, Rest); - false -> - case application:load(Next) of - ok -> - ok; - {error, {already_loaded, _}} -> - ok; - {error, Reason} -> - throw({failed_to_load_app, Next, Reason}) - end, - {ok, Required} = application:get_key(Next, applications), - Unique = [A || A <- Required, not(sets:is_element(A, Current))], - expand_dependencies(sets:add_element(Next, Current), Rest ++ Unique) - end. - -post_process_script(ScriptFile) -> - case file:consult(ScriptFile) of - {ok, [{script, Name, Entries}]} -> - NewEntries = lists:flatmap(fun process_entry/1, Entries), - case file:open(ScriptFile, [write]) of - {ok, Fd} -> - io:format(Fd, "%% script generated at ~w ~w~n~p.~n", - [date(), time(), {script, Name, NewEntries}]), - file:close(Fd), - ok; - {error, OReason} -> - {error, {failed_to_open_script_file_for_writing, OReason}} - end; - {error, Reason} -> - {error, {failed_to_load_script, Reason}} - end. - -process_entry(Entry = {apply,{application,start_boot,[mnesia,permanent]}}) -> - [{apply,{rabbit,prepare,[]}}, Entry]; -process_entry(Entry) -> - [Entry]. - -%% Check whether a node with the same name is already running -duplicate_node_check([]) -> - %% Ignore running node while installing windows service - ok; -duplicate_node_check(NodeStr) -> - Node = rabbit_misc:makenode(NodeStr), - {NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - case net_adm:names(NodeHost) of - {ok, NamePorts} -> - case proplists:is_defined(NodeName, NamePorts) of - true -> io:format("node with name ~p " - "already running on ~p~n", - [NodeName, NodeHost]), - [io:format(Fmt ++ "~n", Args) || - {Fmt, Args} <- rabbit_control:diagnostics(Node)], - terminate(?ERROR_CODE); - false -> ok - end; - {error, EpmdReason} -> terminate("unexpected epmd error: ~p~n", - [EpmdReason]) - end. - -terminate(Fmt, Args) -> - io:format("ERROR: " ++ Fmt ++ "~n", Args), - terminate(?ERROR_CODE). - -terminate(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status), - receive - after infinity -> ok - end - end. diff --git a/src/rabbit_queue_collector.erl b/src/rabbit_queue_collector.erl deleted file mode 100644 index 9b45e798..00000000 --- a/src/rabbit_queue_collector.erl +++ /dev/null @@ -1,92 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_collector). - --behaviour(gen_server). - --export([start_link/0, register/2, delete_all/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {queues, delete_from}). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/2 :: (pid(), rabbit_types:amqqueue()) -> 'ok'). --spec(delete_all/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link(?MODULE, [], []). - -register(CollectorPid, Q) -> - gen_server:call(CollectorPid, {register, Q}, infinity). - -delete_all(CollectorPid) -> - gen_server:call(CollectorPid, delete_all, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state{queues = dict:new(), delete_from = undefined}}. - -%%-------------------------------------------------------------------------- - -handle_call({register, Q}, _From, - State = #state{queues = Queues, delete_from = Deleting}) -> - MonitorRef = erlang:monitor(process, Q#amqqueue.pid), - case Deleting of - undefined -> ok; - _ -> rabbit_amqqueue:delete_immediately(Q) - end, - {reply, ok, State#state{queues = dict:store(MonitorRef, Q, Queues)}}; - -handle_call(delete_all, From, State = #state{queues = Queues, - delete_from = undefined}) -> - case dict:size(Queues) of - 0 -> {reply, ok, State#state{delete_from = From}}; - _ -> [rabbit_amqqueue:delete_immediately(Q) - || {_MRef, Q} <- dict:to_list(Queues)], - {noreply, State#state{delete_from = From}} - end. - -handle_cast(Msg, State) -> - {stop, {unhandled_cast, Msg}, State}. - -handle_info({'DOWN', MonitorRef, process, _DownPid, _Reason}, - State = #state{queues = Queues, delete_from = Deleting}) -> - Queues1 = dict:erase(MonitorRef, Queues), - case Deleting =/= undefined andalso dict:size(Queues1) =:= 0 of - true -> gen_server:reply(Deleting, ok); - false -> ok - end, - {noreply, State#state{queues = Queues1}}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl deleted file mode 100644 index 367953b8..00000000 --- a/src/rabbit_queue_index.erl +++ /dev/null @@ -1,1072 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_index). - --export([init/2, shutdown_terms/1, recover/5, - terminate/2, delete_and_terminate/1, - publish/5, deliver/2, ack/2, sync/1, sync/2, flush/1, read/3, - next_segment_boundary/1, bounds/1, recover/1]). - --export([add_queue_ttl/0]). - --define(CLEAN_FILENAME, "clean.dot"). - -%%---------------------------------------------------------------------------- - -%% The queue index is responsible for recording the order of messages -%% within a queue on disk. -%% -%% Because of the fact that the queue can decide at any point to send -%% a queue entry to disk, you can not rely on publishes appearing in -%% order. The only thing you can rely on is a message being published, -%% then delivered, then ack'd. -%% -%% In order to be able to clean up ack'd messages, we write to segment -%% files. These files have a fixed maximum size: ?SEGMENT_ENTRY_COUNT -%% publishes, delivers and acknowledgements. They are numbered, and so -%% it is known that the 0th segment contains messages 0 -> -%% ?SEGMENT_ENTRY_COUNT - 1, the 1st segment contains messages -%% ?SEGMENT_ENTRY_COUNT -> 2*?SEGMENT_ENTRY_COUNT - 1 and so on. As -%% such, in the segment files, we only refer to message sequence ids -%% by the LSBs as SeqId rem ?SEGMENT_ENTRY_COUNT. This gives them a -%% fixed size. -%% -%% However, transient messages which are not sent to disk at any point -%% will cause gaps to appear in segment files. Therefore, we delete a -%% segment file whenever the number of publishes == number of acks -%% (note that although it is not fully enforced, it is assumed that a -%% message will never be ackd before it is delivered, thus this test -%% also implies == number of delivers). In practise, this does not -%% cause disk churn in the pathological case because of the journal -%% and caching (see below). -%% -%% Because of the fact that publishes, delivers and acks can occur all -%% over, we wish to avoid lots of seeking. Therefore we have a fixed -%% sized journal to which all actions are appended. When the number of -%% entries in this journal reaches max_journal_entries, the journal -%% entries are scattered out to their relevant files, and the journal -%% is truncated to zero size. Note that entries in the journal must -%% carry the full sequence id, thus the format of entries in the -%% journal is different to that in the segments. -%% -%% The journal is also kept fully in memory, pre-segmented: the state -%% contains a mapping from segment numbers to state-per-segment (this -%% state is held for all segments which have been "seen": thus a -%% segment which has been read but has no pending entries in the -%% journal is still held in this mapping. Also note that a dict is -%% used for this mapping, not an array because with an array, you will -%% always have entries from 0). Actions are stored directly in this -%% state. Thus at the point of flushing the journal, firstly no -%% reading from disk is necessary, but secondly if the known number of -%% acks and publishes in a segment are equal, given the known state of -%% the segment file combined with the journal, no writing needs to be -%% done to the segment file either (in fact it is deleted if it exists -%% at all). This is safe given that the set of acks is a subset of the -%% set of publishes. When it's necessary to sync messages because of -%% transactions, it's only necessary to fsync on the journal: when -%% entries are distributed from the journal to segment files, those -%% segments appended to are fsync'd prior to the journal being -%% truncated. -%% -%% This module is also responsible for scanning the queue index files -%% and seeding the message store on start up. -%% -%% Note that in general, the representation of a message's state as -%% the tuple: {('no_pub'|{MsgId, MsgProps, IsPersistent}), -%% ('del'|'no_del'), ('ack'|'no_ack')} is richer than strictly -%% necessary for most operations. However, for startup, and to ensure -%% the safe and correct combination of journal entries with entries -%% read from the segment on disk, this richer representation vastly -%% simplifies and clarifies the code. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. -%% -%%---------------------------------------------------------------------------- - -%% ---- Journal details ---- - --define(JOURNAL_FILENAME, "journal.jif"). - --define(PUB_PERSIST_JPREFIX, 2#00). --define(PUB_TRANS_JPREFIX, 2#01). --define(DEL_JPREFIX, 2#10). --define(ACK_JPREFIX, 2#11). --define(JPREFIX_BITS, 2). --define(SEQ_BYTES, 8). --define(SEQ_BITS, ((?SEQ_BYTES * 8) - ?JPREFIX_BITS)). - -%% ---- Segment details ---- - --define(SEGMENT_EXTENSION, ".idx"). - -%% TODO: The segment size would be configurable, but deriving all the -%% other values is quite hairy and quite possibly noticably less -%% efficient, depending on how clever the compiler is when it comes to -%% binary generation/matching with constant vs variable lengths. - --define(REL_SEQ_BITS, 14). --define(SEGMENT_ENTRY_COUNT, 16384). %% trunc(math:pow(2,?REL_SEQ_BITS))). - -%% seq only is binary 00 followed by 14 bits of rel seq id -%% (range: 0 - 16383) --define(REL_SEQ_ONLY_PREFIX, 00). --define(REL_SEQ_ONLY_PREFIX_BITS, 2). --define(REL_SEQ_ONLY_RECORD_BYTES, 2). - -%% publish record is binary 1 followed by a bit for is_persistent, -%% then 14 bits of rel seq id, 64 bits for message expiry and 128 bits -%% of md5sum msg id --define(PUB_PREFIX, 1). --define(PUB_PREFIX_BITS, 1). - --define(EXPIRY_BYTES, 8). --define(EXPIRY_BITS, (?EXPIRY_BYTES * 8)). --define(NO_EXPIRY, 0). - --define(MSG_ID_BYTES, 16). %% md5sum is 128 bit or 16 bytes --define(MSG_ID_BITS, (?MSG_ID_BYTES * 8)). - -%% 16 bytes for md5sum + 8 for expiry --define(PUB_RECORD_BODY_BYTES, (?MSG_ID_BYTES + ?EXPIRY_BYTES)). -%% + 2 for seq, bits and prefix --define(PUB_RECORD_BYTES, (?PUB_RECORD_BODY_BYTES + 2)). - -%% 1 publish, 1 deliver, 1 ack per msg --define(SEGMENT_TOTAL_SIZE, ?SEGMENT_ENTRY_COUNT * - (?PUB_RECORD_BYTES + (2 * ?REL_SEQ_ONLY_RECORD_BYTES))). - -%% ---- misc ---- - --define(PUB, {_, _, _}). %% {MsgId, MsgProps, IsPersistent} - --define(READ_MODE, [binary, raw, read]). --define(READ_AHEAD_MODE, [{read_ahead, ?SEGMENT_TOTAL_SIZE} | ?READ_MODE]). --define(WRITE_MODE, [write | ?READ_MODE]). - -%%---------------------------------------------------------------------------- - --record(qistate, { dir, segments, journal_handle, dirty_count, - max_journal_entries, on_sync, unsynced_msg_ids }). - --record(segment, { num, path, journal_entries, unacked }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({add_queue_ttl, local, []}). - --ifdef(use_specs). - --type(hdl() :: ('undefined' | any())). --type(segment() :: ('undefined' | - #segment { num :: non_neg_integer(), - path :: file:filename(), - journal_entries :: array(), - unacked :: non_neg_integer() - })). --type(seq_id() :: integer()). --type(seg_dict() :: {dict(), [segment()]}). --type(on_sync_fun() :: fun ((gb_set()) -> ok)). --type(qistate() :: #qistate { dir :: file:filename(), - segments :: 'undefined' | seg_dict(), - journal_handle :: hdl(), - dirty_count :: integer(), - max_journal_entries :: non_neg_integer(), - on_sync :: on_sync_fun(), - unsynced_msg_ids :: [rabbit_types:msg_id()] - }). --type(contains_predicate() :: fun ((rabbit_types:msg_id()) -> boolean())). --type(walker(A) :: fun ((A) -> 'finished' | - {rabbit_types:msg_id(), non_neg_integer(), A})). --type(shutdown_terms() :: [any()]). - --spec(init/2 :: (rabbit_amqqueue:name(), on_sync_fun()) -> qistate()). --spec(shutdown_terms/1 :: (rabbit_amqqueue:name()) -> shutdown_terms()). --spec(recover/5 :: (rabbit_amqqueue:name(), shutdown_terms(), boolean(), - contains_predicate(), on_sync_fun()) -> - {'undefined' | non_neg_integer(), qistate()}). --spec(terminate/2 :: ([any()], qistate()) -> qistate()). --spec(delete_and_terminate/1 :: (qistate()) -> qistate()). --spec(publish/5 :: (rabbit_types:msg_id(), seq_id(), - rabbit_types:message_properties(), boolean(), qistate()) - -> qistate()). --spec(deliver/2 :: ([seq_id()], qistate()) -> qistate()). --spec(ack/2 :: ([seq_id()], qistate()) -> qistate()). --spec(sync/2 :: ([seq_id()], qistate()) -> qistate()). --spec(flush/1 :: (qistate()) -> qistate()). --spec(read/3 :: (seq_id(), seq_id(), qistate()) -> - {[{rabbit_types:msg_id(), seq_id(), - rabbit_types:message_properties(), - boolean(), boolean()}], qistate()}). --spec(next_segment_boundary/1 :: (seq_id()) -> seq_id()). --spec(bounds/1 :: (qistate()) -> - {non_neg_integer(), non_neg_integer(), qistate()}). --spec(recover/1 :: ([rabbit_amqqueue:name()]) -> {[[any()]], {walker(A), A}}). - --spec(add_queue_ttl/0 :: () -> 'ok'). - --endif. - - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -init(Name, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - false = filelib:is_file(Dir), %% is_file == is file or dir - State #qistate { on_sync = OnSyncFun }. - -shutdown_terms(Name) -> - #qistate { dir = Dir } = blank_state(Name), - case read_shutdown_terms(Dir) of - {error, _} -> []; - {ok, Terms1} -> Terms1 - end. - -recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - State1 = State #qistate { on_sync = OnSyncFun }, - CleanShutdown = detect_clean_shutdown(Dir), - case CleanShutdown andalso MsgStoreRecovered of - true -> RecoveredCounts = proplists:get_value(segments, Terms, []), - init_clean(RecoveredCounts, State1); - false -> init_dirty(CleanShutdown, ContainsCheckFun, State1) - end. - -terminate(Terms, State) -> - {SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - store_clean_shutdown([{segments, SegmentCounts} | Terms], Dir), - State1. - -delete_and_terminate(State) -> - {_SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - ok = rabbit_misc:recursive_delete([Dir]), - State1. - -publish(MsgId, SeqId, MsgProps, IsPersistent, - State = #qistate { unsynced_msg_ids = UnsyncedMsgIds }) - when is_binary(MsgId) -> - ?MSG_ID_BYTES = size(MsgId), - {JournalHdl, State1} = get_journal_handle( - State #qistate { - unsynced_msg_ids = [MsgId | UnsyncedMsgIds] }), - ok = file_handle_cache:append( - JournalHdl, [<<(case IsPersistent of - true -> ?PUB_PERSIST_JPREFIX; - false -> ?PUB_TRANS_JPREFIX - end):?JPREFIX_BITS, - SeqId:?SEQ_BITS>>, - create_pub_record_body(MsgId, MsgProps)]), - maybe_flush_journal( - add_to_journal(SeqId, {MsgId, MsgProps, IsPersistent}, State1)). - -deliver(SeqIds, State) -> - deliver_or_ack(del, SeqIds, State). - -ack(SeqIds, State) -> - deliver_or_ack(ack, SeqIds, State). - -%% This is only called when there are outstanding confirms and the -%% queue is idle. -sync(State = #qistate { unsynced_msg_ids = MsgIds }) -> - sync_if([] =/= MsgIds, State). - -sync(SeqIds, State) -> - %% The SeqIds here contains the SeqId of every publish and ack in - %% the transaction. Ideally we should go through these seqids and - %% only sync the journal if the pubs or acks appear in the - %% journal. However, this would be complex to do, and given that - %% the variable queue publishes and acks to the qi, and then - %% syncs, all in one operation, there is no possibility of the - %% seqids not being in the journal, provided the transaction isn't - %% emptied (handled by sync_if anyway). - sync_if([] =/= SeqIds, State). - -flush(State = #qistate { dirty_count = 0 }) -> State; -flush(State) -> flush_journal(State). - -read(StartEnd, StartEnd, State) -> - {[], State}; -read(Start, End, State = #qistate { segments = Segments, - dir = Dir }) when Start =< End -> - %% Start is inclusive, End is exclusive. - LowerB = {StartSeg, _StartRelSeq} = seq_id_to_seg_and_rel_seq_id(Start), - UpperB = {EndSeg, _EndRelSeq} = seq_id_to_seg_and_rel_seq_id(End - 1), - {Messages, Segments1} = - lists:foldr(fun (Seg, Acc) -> - read_bounded_segment(Seg, LowerB, UpperB, Acc, Dir) - end, {[], Segments}, lists:seq(StartSeg, EndSeg)), - {Messages, State #qistate { segments = Segments1 }}. - -next_segment_boundary(SeqId) -> - {Seg, _RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - reconstruct_seq_id(Seg + 1, 0). - -bounds(State = #qistate { segments = Segments }) -> - %% This is not particularly efficient, but only gets invoked on - %% queue initialisation. - SegNums = lists:sort(segment_nums(Segments)), - %% Don't bother trying to figure out the lowest seq_id, merely the - %% seq_id of the start of the lowest segment. That seq_id may not - %% actually exist, but that's fine. The important thing is that - %% the segment exists and the seq_id reported is on a segment - %% boundary. - %% - %% We also don't really care about the max seq_id. Just start the - %% next segment: it makes life much easier. - %% - %% SegNums is sorted, ascending. - {LowSeqId, NextSeqId} = - case SegNums of - [] -> {0, 0}; - [MinSeg|_] -> {reconstruct_seq_id(MinSeg, 0), - reconstruct_seq_id(1 + lists:last(SegNums), 0)} - end, - {LowSeqId, NextSeqId, State}. - -recover(DurableQueues) -> - DurableDict = dict:from_list([ {queue_name_to_dir_name(Queue), Queue} || - Queue <- DurableQueues ]), - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), - {DurableQueueNames, DurableTerms} = - lists:foldl( - fun (QueueDirName, {DurableAcc, TermsAcc}) -> - QueueDirPath = filename:join(QueuesDir, QueueDirName), - case sets:is_element(QueueDirName, DurableDirectories) of - true -> - TermsAcc1 = - case read_shutdown_terms(QueueDirPath) of - {error, _} -> TermsAcc; - {ok, Terms} -> [Terms | TermsAcc] - end, - {[dict:fetch(QueueDirName, DurableDict) | DurableAcc], - TermsAcc1}; - false -> - ok = rabbit_misc:recursive_delete([QueueDirPath]), - {DurableAcc, TermsAcc} - end - end, {[], []}, QueueDirNames), - {DurableTerms, {fun queue_index_walker/1, {start, DurableQueueNames}}}. - -all_queue_directory_names(Dir) -> - case file:list_dir(Dir) of - {ok, Entries} -> [ Entry || Entry <- Entries, - filelib:is_dir( - filename:join(Dir, Entry)) ]; - {error, enoent} -> [] - end. - -%%---------------------------------------------------------------------------- -%% startup and shutdown -%%---------------------------------------------------------------------------- - -blank_state(QueueName) -> - Dir = filename:join(queues_dir(), queue_name_to_dir_name(QueueName)), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - #qistate { dir = Dir, - segments = segments_new(), - journal_handle = undefined, - dirty_count = 0, - max_journal_entries = MaxJournal, - on_sync = fun (_) -> ok end, - unsynced_msg_ids = [] }. - -clean_file_name(Dir) -> filename:join(Dir, ?CLEAN_FILENAME). - -detect_clean_shutdown(Dir) -> - case file:delete(clean_file_name(Dir)) of - ok -> true; - {error, enoent} -> false - end. - -read_shutdown_terms(Dir) -> - rabbit_misc:read_term_file(clean_file_name(Dir)). - -store_clean_shutdown(Terms, Dir) -> - CleanFileName = clean_file_name(Dir), - ok = filelib:ensure_dir(CleanFileName), - rabbit_misc:write_term_file(CleanFileName, Terms). - -init_clean(RecoveredCounts, State) -> - %% Load the journal. Since this is a clean recovery this (almost) - %% gets us back to where we were on shutdown. - State1 = #qistate { dir = Dir, segments = Segments } = load_journal(State), - %% The journal loading only creates records for segments touched - %% by the journal, and the counts are based on the journal entries - %% only. We need *complete* counts for *all* segments. By an - %% amazing coincidence we stored that information on shutdown. - Segments1 = - lists:foldl( - fun ({Seg, UnackedCount}, SegmentsN) -> - Segment = segment_find_or_new(Seg, Dir, SegmentsN), - segment_store(Segment #segment { unacked = UnackedCount }, - SegmentsN) - end, Segments, RecoveredCounts), - %% the counts above include transient messages, which would be the - %% wrong thing to return - {undefined, State1 # qistate { segments = Segments1 }}. - -init_dirty(CleanShutdown, ContainsCheckFun, State) -> - %% Recover the journal completely. This will also load segments - %% which have entries in the journal and remove duplicates. The - %% counts will correctly reflect the combination of the segment - %% and the journal. - State1 = #qistate { dir = Dir, segments = Segments } = - recover_journal(State), - {Segments1, Count} = - %% Load each segment in turn and filter out messages that are - %% not in the msg_store, by adding acks to the journal. These - %% acks only go to the RAM journal as it doesn't matter if we - %% lose them. Also mark delivered if not clean shutdown. Also - %% find the number of unacked messages. - lists:foldl( - fun (Seg, {Segments2, CountAcc}) -> - Segment = #segment { unacked = UnackedCount } = - recover_segment(ContainsCheckFun, CleanShutdown, - segment_find_or_new(Seg, Dir, Segments2)), - {segment_store(Segment, Segments2), CountAcc + UnackedCount} - end, {Segments, 0}, all_segment_nums(State1)), - %% Unconditionally flush since the dirty_count doesn't get updated - %% by the above foldl. - State2 = flush_journal(State1 #qistate { segments = Segments1 }), - {Count, State2}. - -terminate(State = #qistate { journal_handle = JournalHdl, - segments = Segments }) -> - ok = case JournalHdl of - undefined -> ok; - _ -> file_handle_cache:close(JournalHdl) - end, - SegmentCounts = - segment_fold( - fun (#segment { num = Seg, unacked = UnackedCount }, Acc) -> - [{Seg, UnackedCount} | Acc] - end, [], Segments), - {SegmentCounts, State #qistate { journal_handle = undefined, - segments = undefined }}. - -recover_segment(ContainsCheckFun, CleanShutdown, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, UnackedCount} = load_segment(false, Segment), - {SegEntries1, UnackedCountDelta} = - segment_plus_journal(SegEntries, JEntries), - array:sparse_foldl( - fun (RelSeq, {{MsgId, _MsgProps, _IsPersistent}, Del, no_ack}, - Segment1) -> - recover_message(ContainsCheckFun(MsgId), CleanShutdown, - Del, RelSeq, Segment1) - end, - Segment #segment { unacked = UnackedCount + UnackedCountDelta }, - SegEntries1). - -recover_message( true, true, _Del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, del, Segment); -recover_message(false, _, del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, Segment); -recover_message(false, _, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, add_to_journal(RelSeq, del, Segment)). - -queue_name_to_dir_name(Name = #resource { kind = queue }) -> - <> = erlang:md5(term_to_binary(Name)), - lists:flatten(io_lib:format("~.36B", [Num])). - -queues_dir() -> - filename:join(rabbit_mnesia:dir(), "queues"). - -%%---------------------------------------------------------------------------- -%% msg store startup delta function -%%---------------------------------------------------------------------------- - -queue_index_walker({start, DurableQueues}) when is_list(DurableQueues) -> - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> queue_index_walker_reader(QueueName, Gatherer) - end) - end || QueueName <- DurableQueues], - queue_index_walker({next, Gatherer}); - -queue_index_walker({next, Gatherer}) when is_pid(Gatherer) -> - case gatherer:out(Gatherer) of - empty -> - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer), - finished; - {value, {MsgId, Count}} -> - {MsgId, Count, {next, Gatherer}} - end. - -queue_index_walker_reader(QueueName, Gatherer) -> - State = #qistate { segments = Segments, dir = Dir } = - recover_journal(blank_state(QueueName)), - [ok = segment_entries_foldr( - fun (_RelSeq, {{MsgId, _MsgProps, true}, _IsDelivered, no_ack}, - ok) -> - gatherer:in(Gatherer, {MsgId, 1}); - (_RelSeq, _Value, Acc) -> - Acc - end, ok, segment_find_or_new(Seg, Dir, Segments)) || - Seg <- all_segment_nums(State)], - {_SegmentCounts, _State} = terminate(State), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% expiry/binary manipulation -%%---------------------------------------------------------------------------- - -create_pub_record_body(MsgId, #message_properties { expiry = Expiry }) -> - [MsgId, expiry_to_binary(Expiry)]. - -expiry_to_binary(undefined) -> <>; -expiry_to_binary(Expiry) -> <>. - -parse_pub_record_body(<>) -> - %% work around for binary data fragmentation. See - %% rabbit_msg_file:read_next/2 - <> = <>, - Exp = case Expiry of - ?NO_EXPIRY -> undefined; - X -> X - end, - {MsgId, #message_properties { expiry = Exp }}. - -%%---------------------------------------------------------------------------- -%% journal manipulation -%%---------------------------------------------------------------------------- - -add_to_journal(SeqId, Action, State = #qistate { dirty_count = DCount, - segments = Segments, - dir = Dir }) -> - {Seg, RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - Segment = segment_find_or_new(Seg, Dir, Segments), - Segment1 = add_to_journal(RelSeq, Action, Segment), - State #qistate { dirty_count = DCount + 1, - segments = segment_store(Segment1, Segments) }; - -add_to_journal(RelSeq, Action, - Segment = #segment { journal_entries = JEntries, - unacked = UnackedCount }) -> - Segment1 = Segment #segment { - journal_entries = add_to_journal(RelSeq, Action, JEntries) }, - case Action of - del -> Segment1; - ack -> Segment1 #segment { unacked = UnackedCount - 1 }; - ?PUB -> Segment1 #segment { unacked = UnackedCount + 1 } - end; - -add_to_journal(RelSeq, Action, JEntries) -> - Val = case array:get(RelSeq, JEntries) of - undefined -> - case Action of - ?PUB -> {Action, no_del, no_ack}; - del -> {no_pub, del, no_ack}; - ack -> {no_pub, no_del, ack} - end; - ({Pub, no_del, no_ack}) when Action == del -> - {Pub, del, no_ack}; - ({Pub, Del, no_ack}) when Action == ack -> - {Pub, Del, ack} - end, - array:set(RelSeq, Val, JEntries). - -maybe_flush_journal(State = #qistate { dirty_count = DCount, - max_journal_entries = MaxJournal }) - when DCount > MaxJournal -> - flush_journal(State); -maybe_flush_journal(State) -> - State. - -flush_journal(State = #qistate { segments = Segments }) -> - Segments1 = - segment_fold( - fun (#segment { unacked = 0, path = Path }, SegmentsN) -> - case filelib:is_file(Path) of - true -> ok = file:delete(Path); - false -> ok - end, - SegmentsN; - (#segment {} = Segment, SegmentsN) -> - segment_store(append_journal_to_segment(Segment), SegmentsN) - end, segments_new(), Segments), - {JournalHdl, State1} = - get_journal_handle(State #qistate { segments = Segments1 }), - ok = file_handle_cache:clear(JournalHdl), - notify_sync(State1 #qistate { dirty_count = 0 }). - -append_journal_to_segment(#segment { journal_entries = JEntries, - path = Path } = Segment) -> - case array:sparse_size(JEntries) of - 0 -> Segment; - _ -> {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - array:sparse_foldl(fun write_entry_to_segment/3, Hdl, JEntries), - ok = file_handle_cache:close(Hdl), - Segment #segment { journal_entries = array_new() } - end. - -get_journal_handle(State = #qistate { journal_handle = undefined, - dir = Dir }) -> - Path = filename:join(Dir, ?JOURNAL_FILENAME), - ok = filelib:ensure_dir(Path), - {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - {Hdl, State #qistate { journal_handle = Hdl }}; -get_journal_handle(State = #qistate { journal_handle = Hdl }) -> - {Hdl, State}. - -%% Loading Journal. This isn't idempotent and will mess up the counts -%% if you call it more than once on the same state. Assumes the counts -%% are 0 to start with. -load_journal(State) -> - {JournalHdl, State1} = get_journal_handle(State), - {ok, 0} = file_handle_cache:position(JournalHdl, 0), - load_journal_entries(State1). - -%% ditto -recover_journal(State) -> - State1 = #qistate { segments = Segments } = load_journal(State), - Segments1 = - segment_map( - fun (Segment = #segment { journal_entries = JEntries, - unacked = UnackedCountInJournal }) -> - %% We want to keep ack'd entries in so that we can - %% remove them if duplicates are in the journal. The - %% counts here are purely from the segment itself. - {SegEntries, UnackedCountInSeg} = load_segment(true, Segment), - {JEntries1, UnackedCountDuplicates} = - journal_minus_segment(JEntries, SegEntries), - Segment #segment { journal_entries = JEntries1, - unacked = (UnackedCountInJournal + - UnackedCountInSeg - - UnackedCountDuplicates) } - end, Segments), - State1 #qistate { segments = Segments1 }. - -load_journal_entries(State = #qistate { journal_handle = Hdl }) -> - case file_handle_cache:read(Hdl, ?SEQ_BYTES) of - {ok, <>} -> - case Prefix of - ?DEL_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, del, State)); - ?ACK_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, ack, State)); - _ -> - case file_handle_cache:read(Hdl, ?PUB_RECORD_BODY_BYTES) of - {ok, Bin} -> - {MsgId, MsgProps} = parse_pub_record_body(Bin), - IsPersistent = case Prefix of - ?PUB_PERSIST_JPREFIX -> true; - ?PUB_TRANS_JPREFIX -> false - end, - load_journal_entries( - add_to_journal( - SeqId, {MsgId, MsgProps, IsPersistent}, State)); - _ErrOrEoF -> %% err, we've lost at least a publish - State - end - end; - _ErrOrEoF -> State - end. - -deliver_or_ack(_Kind, [], State) -> - State; -deliver_or_ack(Kind, SeqIds, State) -> - JPrefix = case Kind of ack -> ?ACK_JPREFIX; del -> ?DEL_JPREFIX end, - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, - [<> || SeqId <- SeqIds]), - maybe_flush_journal(lists:foldl(fun (SeqId, StateN) -> - add_to_journal(SeqId, Kind, StateN) - end, State1, SeqIds)). - -sync_if(false, State) -> - State; -sync_if(_Bool, State = #qistate { journal_handle = undefined }) -> - State; -sync_if(true, State = #qistate { journal_handle = JournalHdl }) -> - ok = file_handle_cache:sync(JournalHdl), - notify_sync(State). - -notify_sync(State = #qistate { unsynced_msg_ids = UG, on_sync = OnSyncFun }) -> - OnSyncFun(gb_sets:from_list(UG)), - State #qistate { unsynced_msg_ids = [] }. - -%%---------------------------------------------------------------------------- -%% segment manipulation -%%---------------------------------------------------------------------------- - -seq_id_to_seg_and_rel_seq_id(SeqId) -> - { SeqId div ?SEGMENT_ENTRY_COUNT, SeqId rem ?SEGMENT_ENTRY_COUNT }. - -reconstruct_seq_id(Seg, RelSeq) -> - (Seg * ?SEGMENT_ENTRY_COUNT) + RelSeq. - -all_segment_nums(#qistate { dir = Dir, segments = Segments }) -> - lists:sort( - sets:to_list( - lists:foldl( - fun (SegName, Set) -> - sets:add_element( - list_to_integer( - lists:takewhile(fun (C) -> $0 =< C andalso C =< $9 end, - SegName)), Set) - end, sets:from_list(segment_nums(Segments)), - filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)))). - -segment_find_or_new(Seg, Dir, Segments) -> - case segment_find(Seg, Segments) of - {ok, Segment} -> Segment; - error -> SegName = integer_to_list(Seg) ++ ?SEGMENT_EXTENSION, - Path = filename:join(Dir, SegName), - #segment { num = Seg, - path = Path, - journal_entries = array_new(), - unacked = 0 } - end. - -segment_find(Seg, {_Segments, [Segment = #segment { num = Seg } |_]}) -> - {ok, Segment}; %% 1 or (2, matches head) -segment_find(Seg, {_Segments, [_, Segment = #segment { num = Seg }]}) -> - {ok, Segment}; %% 2, matches tail -segment_find(Seg, {Segments, _}) -> %% no match - dict:find(Seg, Segments). - -segment_store(Segment = #segment { num = Seg }, %% 1 or (2, matches head) - {Segments, [#segment { num = Seg } | Tail]}) -> - {Segments, [Segment | Tail]}; -segment_store(Segment = #segment { num = Seg }, %% 2, matches tail - {Segments, [SegmentA, #segment { num = Seg }]}) -> - {Segments, [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, {Segments, []}) -> - {dict:erase(Seg, Segments), [Segment]}; -segment_store(Segment = #segment { num = Seg }, {Segments, [SegmentA]}) -> - {dict:erase(Seg, Segments), [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, - {Segments, [SegmentA, SegmentB]}) -> - {dict:store(SegmentB#segment.num, SegmentB, dict:erase(Seg, Segments)), - [Segment, SegmentA]}. - -segment_fold(Fun, Acc, {Segments, CachedSegments}) -> - dict:fold(fun (_Seg, Segment, Acc1) -> Fun(Segment, Acc1) end, - lists:foldl(Fun, Acc, CachedSegments), Segments). - -segment_map(Fun, {Segments, CachedSegments}) -> - {dict:map(fun (_Seg, Segment) -> Fun(Segment) end, Segments), - lists:map(Fun, CachedSegments)}. - -segment_nums({Segments, CachedSegments}) -> - lists:map(fun (#segment { num = Num }) -> Num end, CachedSegments) ++ - dict:fetch_keys(Segments). - -segments_new() -> - {dict:new(), []}. - -write_entry_to_segment(_RelSeq, {?PUB, del, ack}, Hdl) -> - Hdl; -write_entry_to_segment(RelSeq, {Pub, Del, Ack}, Hdl) -> - ok = case Pub of - no_pub -> - ok; - {MsgId, MsgProps, IsPersistent} -> - file_handle_cache:append( - Hdl, [<>, - create_pub_record_body(MsgId, MsgProps)]) - end, - ok = case {Del, Ack} of - {no_del, no_ack} -> - ok; - _ -> - Binary = <>, - file_handle_cache:append( - Hdl, case {Del, Ack} of - {del, ack} -> [Binary, Binary]; - _ -> Binary - end) - end, - Hdl. - -read_bounded_segment(Seg, {StartSeg, StartRelSeq}, {EndSeg, EndRelSeq}, - {Messages, Segments}, Dir) -> - Segment = segment_find_or_new(Seg, Dir, Segments), - {segment_entries_foldr( - fun (RelSeq, {{MsgId, MsgProps, IsPersistent}, IsDelivered, no_ack}, Acc) - when (Seg > StartSeg orelse StartRelSeq =< RelSeq) andalso - (Seg < EndSeg orelse EndRelSeq >= RelSeq) -> - [ {MsgId, reconstruct_seq_id(StartSeg, RelSeq), MsgProps, - IsPersistent, IsDelivered == del} | Acc ]; - (_RelSeq, _Value, Acc) -> - Acc - end, Messages, Segment), - segment_store(Segment, Segments)}. - -segment_entries_foldr(Fun, Init, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, _UnackedCount} = load_segment(false, Segment), - {SegEntries1, _UnackedCountD} = segment_plus_journal(SegEntries, JEntries), - array:sparse_foldr(Fun, Init, SegEntries1). - -%% Loading segments -%% -%% Does not do any combining with the journal at all. -load_segment(KeepAcked, #segment { path = Path }) -> - case filelib:is_file(Path) of - false -> {array_new(), 0}; - true -> {ok, Hdl} = file_handle_cache:open(Path, ?READ_AHEAD_MODE, []), - {ok, 0} = file_handle_cache:position(Hdl, bof), - {ok, SegData} = file_handle_cache:read( - Hdl, ?SEGMENT_TOTAL_SIZE), - Res = load_segment_entries(KeepAcked, SegData, array_new(), 0), - ok = file_handle_cache:close(Hdl), - Res - end. - -load_segment_entries(KeepAcked, - <>, - SegEntries, UnackedCount) -> - {MsgId, MsgProps} = parse_pub_record_body(PubRecordBody), - Obj = {{MsgId, MsgProps, 1 == IsPersistentNum}, no_del, no_ack}, - SegEntries1 = array:set(RelSeq, Obj, SegEntries), - load_segment_entries(KeepAcked, SegData, SegEntries1, UnackedCount + 1); -load_segment_entries(KeepAcked, - <>, - SegEntries, UnackedCount) -> - {UnackedCountDelta, SegEntries1} = - case array:get(RelSeq, SegEntries) of - {Pub, no_del, no_ack} -> - { 0, array:set(RelSeq, {Pub, del, no_ack}, SegEntries)}; - {Pub, del, no_ack} when KeepAcked -> - {-1, array:set(RelSeq, {Pub, del, ack}, SegEntries)}; - {_Pub, del, no_ack} -> - {-1, array:reset(RelSeq, SegEntries)} - end, - load_segment_entries(KeepAcked, SegData, SegEntries1, - UnackedCount + UnackedCountDelta); -load_segment_entries(_KeepAcked, _SegData, SegEntries, UnackedCount) -> - {SegEntries, UnackedCount}. - -array_new() -> - array:new([{default, undefined}, fixed, {size, ?SEGMENT_ENTRY_COUNT}]). - -bool_to_int(true ) -> 1; -bool_to_int(false) -> 0. - -%%---------------------------------------------------------------------------- -%% journal & segment combination -%%---------------------------------------------------------------------------- - -%% Combine what we have just read from a segment file with what we're -%% holding for that segment in memory. There must be no duplicates. -segment_plus_journal(SegEntries, JEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {SegEntriesOut, AdditionalUnacked}) -> - SegEntry = array:get(RelSeq, SegEntriesOut), - {Obj, AdditionalUnackedDelta} = - segment_plus_journal1(SegEntry, JObj), - {case Obj of - undefined -> array:reset(RelSeq, SegEntriesOut); - _ -> array:set(RelSeq, Obj, SegEntriesOut) - end, - AdditionalUnacked + AdditionalUnackedDelta} - end, {SegEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item which we may be adding to (for items only in the journal), -%% modifying in (bits in both), or, when returning 'undefined', -%% erasing from (ack in journal, not segment) the segment array. The -%% other element of the tuple is the delta for AdditionalUnacked. -segment_plus_journal1(undefined, {?PUB, no_del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, ack}) -> - {undefined, 0}; - -segment_plus_journal1({?PUB = Pub, no_del, no_ack}, {no_pub, del, no_ack}) -> - {{Pub, del, no_ack}, 0}; -segment_plus_journal1({?PUB, no_del, no_ack}, {no_pub, del, ack}) -> - {undefined, -1}; -segment_plus_journal1({?PUB, del, no_ack}, {no_pub, no_del, ack}) -> - {undefined, -1}. - -%% Remove from the journal entries for a segment, items that are -%% duplicates of entries found in the segment itself. Used on start up -%% to clean up the journal. -journal_minus_segment(JEntries, SegEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {JEntriesOut, UnackedRemoved}) -> - SegEntry = array:get(RelSeq, SegEntries), - {Obj, UnackedRemovedDelta} = - journal_minus_segment1(JObj, SegEntry), - {case Obj of - keep -> JEntriesOut; - undefined -> array:reset(RelSeq, JEntriesOut); - _ -> array:set(RelSeq, Obj, JEntriesOut) - end, - UnackedRemoved + UnackedRemovedDelta} - end, {JEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item we are adding to or modifying in the (initially fresh) journal -%% array. If the item is 'undefined' we leave the journal array -%% alone. The other element of the tuple is the deltas for -%% UnackedRemoved. - -%% Both the same. Must be at least the publish -journal_minus_segment1({?PUB, _Del, no_ack} = Obj, Obj) -> - {undefined, 1}; -journal_minus_segment1({?PUB, _Del, ack} = Obj, Obj) -> - {undefined, 0}; - -%% Just publish in journal -journal_minus_segment1({?PUB, no_del, no_ack}, undefined) -> - {keep, 0}; - -%% Publish and deliver in journal -journal_minus_segment1({?PUB, del, no_ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, no_ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, no_ack}, 1}; - -%% Publish, deliver and ack in journal -journal_minus_segment1({?PUB, del, ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, ack}, 1}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, del, no_ack}) -> - {{no_pub, no_del, ack}, 1}; - -%% Just deliver in journal -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, del, no_ack}) -> - {undefined, 0}; - -%% Just ack in journal -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, ack}) -> - {undefined, -1}; - -%% Deliver and ack in journal -journal_minus_segment1({no_pub, del, ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, no_ack}) -> - {{no_pub, no_del, ack}, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, ack}) -> - {undefined, -1}. - -%%---------------------------------------------------------------------------- -%% upgrade -%%---------------------------------------------------------------------------- - -add_queue_ttl() -> - foreach_queue_index({fun add_queue_ttl_journal/1, - fun add_queue_ttl_segment/1}). - -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {[<>, MsgId, - expiry_to_binary(undefined)], Rest}; -add_queue_ttl_journal(_) -> - stop. - -add_queue_ttl_segment(<>) -> - {[<>, - MsgId, expiry_to_binary(undefined)], Rest}; -add_queue_ttl_segment(<>) -> - {<>, - Rest}; -add_queue_ttl_segment(_) -> - stop. - -%%---------------------------------------------------------------------------- - -foreach_queue_index(Funs) -> - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> - transform_queue(filename:join(QueuesDir, QueueDirName), - Gatherer, Funs) - end) - end || QueueDirName <- QueueDirNames], - empty = gatherer:out(Gatherer), - ok = gatherer:stop(Gatherer), - ok = rabbit_misc:unlink_and_capture_exit(Gatherer). - -transform_queue(Dir, Gatherer, {JournalFun, SegmentFun}) -> - ok = transform_file(filename:join(Dir, ?JOURNAL_FILENAME), JournalFun), - [ok = transform_file(filename:join(Dir, Seg), SegmentFun) - || Seg <- filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)], - ok = gatherer:finish(Gatherer). - -transform_file(Path, Fun) -> - PathTmp = Path ++ ".upgrade", - case filelib:file_size(Path) of - 0 -> ok; - Size -> {ok, PathTmpHdl} = - file_handle_cache:open(PathTmp, ?WRITE_MODE, - [{write_buffer, infinity}]), - - {ok, PathHdl} = file_handle_cache:open( - Path, [{read_ahead, Size} | ?READ_MODE], []), - {ok, Content} = file_handle_cache:read(PathHdl, Size), - ok = file_handle_cache:close(PathHdl), - - ok = drive_transform_fun(Fun, PathTmpHdl, Content), - - ok = file_handle_cache:close(PathTmpHdl), - ok = file:rename(PathTmp, Path) - end. - -drive_transform_fun(Fun, Hdl, Contents) -> - case Fun(Contents) of - stop -> ok; - {Output, Contents1} -> ok = file_handle_cache:append(Hdl, Output), - drive_transform_fun(Fun, Hdl, Contents1) - end. diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl deleted file mode 100644 index 609bb43f..00000000 --- a/src/rabbit_reader.erl +++ /dev/null @@ -1,917 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_reader). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([start_link/3, info_keys/0, info/1, info/2, shutdown/2]). - --export([system_continue/3, system_terminate/4, system_code_change/4]). - --export([init/4, mainloop/2]). - --export([conserve_memory/2, server_properties/1]). - --export([process_channel_frame/5]). %% used by erlang-client - --export([emit_stats/1]). - --define(HANDSHAKE_TIMEOUT, 10). --define(NORMAL_TIMEOUT, 3). --define(CLOSING_TIMEOUT, 1). --define(CHANNEL_TERMINATION_TIMEOUT, 3). --define(SILENT_CLOSE_DELAY, 3). - -%%-------------------------------------------------------------------------- - --record(v1, {parent, sock, connection, callback, recv_length, recv_ref, - connection_state, queue_collector, heartbeater, stats_timer, - channel_sup_sup_pid, start_heartbeat_fun, auth_mechanism, - auth_state}). - --define(STATISTICS_KEYS, [pid, recv_oct, recv_cnt, send_oct, send_cnt, - send_pend, state, channels]). - --define(CREATION_EVENT_KEYS, [pid, address, port, peer_address, peer_port, ssl, - peer_cert_subject, peer_cert_issuer, - peer_cert_validity, auth_mechanism, - ssl_protocol, ssl_key_exchange, - ssl_cipher, ssl_hash, - protocol, user, vhost, timeout, frame_max, - client_properties]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - --define(IS_RUNNING(State), - (State#v1.connection_state =:= running orelse - State#v1.connection_state =:= blocking orelse - State#v1.connection_state =:= blocked)). - -%%-------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/3 :: (pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) -> - rabbit_types:ok(pid())). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(shutdown/2 :: (pid(), string()) -> 'ok'). --spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok'). --spec(server_properties/1 :: (rabbit_types:protocol()) -> - rabbit_framing:amqp_table()). - -%% These specs only exists to add no_return() to keep dialyzer happy --spec(init/4 :: (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) - -> no_return()). --spec(start_connection/7 :: - (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun(), any(), - rabbit_net:socket(), - fun ((rabbit_net:socket()) -> - rabbit_types:ok_or_error2( - rabbit_net:socket(), any()))) -> no_return()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link(ChannelSupSupPid, Collector, StartHeartbeatFun) -> - {ok, proc_lib:spawn_link(?MODULE, init, [self(), ChannelSupSupPid, - Collector, StartHeartbeatFun])}. - -shutdown(Pid, Explanation) -> - gen_server:call(Pid, {shutdown, Explanation}, infinity). - -init(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun) -> - Deb = sys:debug_options([]), - receive - {go, Sock, SockTransform} -> - start_connection( - Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, Sock, - SockTransform) - end. - -system_continue(Parent, Deb, State) -> - ?MODULE:mainloop(Deb, State#v1{parent = Parent}). - -system_terminate(Reason, _Parent, _Deb, _State) -> - exit(Reason). - -system_code_change(Misc, _Module, _OldVsn, _Extra) -> - {ok, Misc}. - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -emit_stats(Pid) -> - gen_server:cast(Pid, emit_stats). - -conserve_memory(Pid, Conserve) -> - Pid ! {conserve_memory, Conserve}, - ok. - -server_properties(Protocol) -> - {ok, Product} = application:get_key(rabbit, id), - {ok, Version} = application:get_key(rabbit, vsn), - - %% Get any configuration-specified server properties - {ok, RawConfigServerProps} = application:get_env(rabbit, - server_properties), - - %% Normalize the simplifed (2-tuple) and unsimplified (3-tuple) forms - %% from the config and merge them with the generated built-in properties - NormalizedConfigServerProps = - [{<<"capabilities">>, table, server_capabilities(Protocol)} | - [case X of - {KeyAtom, Value} -> {list_to_binary(atom_to_list(KeyAtom)), - longstr, - list_to_binary(Value)}; - {BinKey, Type, Value} -> {BinKey, Type, Value} - end || X <- RawConfigServerProps ++ - [{product, Product}, - {version, Version}, - {platform, "Erlang/OTP"}, - {copyright, ?COPYRIGHT_MESSAGE}, - {information, ?INFORMATION_MESSAGE}]]], - - %% Filter duplicated properties in favour of config file provided values - lists:usort(fun ({K1,_,_}, {K2,_,_}) -> K1 =< K2 end, - NormalizedConfigServerProps). - -server_capabilities(rabbit_framing_amqp_0_9_1) -> - [{<<"publisher_confirms">>, bool, true}, - {<<"exchange_exchange_bindings">>, bool, true}, - {<<"basic.nack">>, bool, true}, - {<<"consumer_cancel_notify">>, bool, true}]; -server_capabilities(_) -> - []. - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -socket_op(Sock, Fun) -> - case Fun(Sock) of - {ok, Res} -> Res; - {error, Reason} -> rabbit_log:error("error on TCP connection ~p:~p~n", - [self(), Reason]), - rabbit_log:info("closing TCP connection ~p~n", - [self()]), - exit(normal) - end. - -start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, - Sock, SockTransform) -> - process_flag(trap_exit, true), - {PeerAddress, PeerPort} = socket_op(Sock, fun rabbit_net:peername/1), - PeerAddressS = rabbit_misc:ntoab(PeerAddress), - rabbit_log:info("starting TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - ClientSock = socket_op(Sock, SockTransform), - erlang:send_after(?HANDSHAKE_TIMEOUT * 1000, self(), - handshake_timeout), - try - mainloop(Deb, switch_callback( - #v1{parent = Parent, - sock = ClientSock, - connection = #connection{ - protocol = none, - user = none, - timeout_sec = ?HANDSHAKE_TIMEOUT, - frame_max = ?FRAME_MIN_SIZE, - vhost = none, - client_properties = none, - capabilities = []}, - callback = uninitialized_callback, - recv_length = 0, - recv_ref = none, - connection_state = pre_init, - queue_collector = Collector, - heartbeater = none, - stats_timer = - rabbit_event:init_stats_timer(), - channel_sup_sup_pid = ChannelSupSupPid, - start_heartbeat_fun = StartHeartbeatFun, - auth_mechanism = none, - auth_state = none - }, - handshake, 8)) - catch - Ex -> (if Ex == connection_closed_abruptly -> - fun rabbit_log:warning/2; - true -> - fun rabbit_log:error/2 - end)("exception on TCP connection ~p from ~s:~p~n~p~n", - [self(), PeerAddressS, PeerPort, Ex]) - after - rabbit_log:info("closing TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - %% We don't close the socket explicitly. The reader is the - %% controlling process and hence its termination will close - %% the socket. Furthermore, gen_tcp:close/1 waits for pending - %% output to be sent, which results in unnecessary delays. - %% - %% gen_tcp:close(ClientSock), - rabbit_event:notify(connection_closed, [{pid, self()}]) - end, - done. - -mainloop(Deb, State = #v1{parent = Parent, sock= Sock, recv_ref = Ref}) -> - receive - {inet_async, Sock, Ref, {ok, Data}} -> - mainloop(Deb, handle_input(State#v1.callback, Data, - State#v1{recv_ref = none})); - {inet_async, Sock, Ref, {error, closed}} -> - if State#v1.connection_state =:= closed -> - State; - true -> - throw(connection_closed_abruptly) - end; - {inet_async, Sock, Ref, {error, Reason}} -> - throw({inet_error, Reason}); - {conserve_memory, Conserve} -> - mainloop(Deb, internal_conserve_memory(Conserve, State)); - {channel_closing, ChPid} -> - ok = rabbit_channel:ready_for_close(ChPid), - channel_cleanup(ChPid), - mainloop(Deb, State); - {'EXIT', Parent, Reason} -> - terminate(io_lib:format("broker forced connection closure " - "with reason '~w'", [Reason]), State), - %% this is what we are expected to do according to - %% http://www.erlang.org/doc/man/sys.html - %% - %% If we wanted to be *really* nice we should wait for a - %% while for clients to close the socket at their end, - %% just as we do in the ordinary error case. However, - %% since this termination is initiated by our parent it is - %% probably more important to exit quickly. - exit(Reason); - {channel_exit, _Channel, E = {writer, send_failed, _Error}} -> - throw(E); - {channel_exit, Channel, Reason} -> - mainloop(Deb, handle_exception(State, Channel, Reason)); - {'DOWN', _MRef, process, ChPid, Reason} -> - mainloop(Deb, handle_dependent_exit(ChPid, Reason, State)); - terminate_connection -> - State; - handshake_timeout -> - if ?IS_RUNNING(State) orelse - State#v1.connection_state =:= closing orelse - State#v1.connection_state =:= closed -> - mainloop(Deb, State); - true -> - throw({handshake_timeout, State#v1.callback}) - end; - timeout -> - case State#v1.connection_state of - closed -> mainloop(Deb, State); - S -> throw({timeout, S}) - end; - {'$gen_call', From, {shutdown, Explanation}} -> - {ForceTermination, NewState} = terminate(Explanation, State), - gen_server:reply(From, ok), - case ForceTermination of - force -> ok; - normal -> mainloop(Deb, NewState) - end; - {'$gen_call', From, info} -> - gen_server:reply(From, infos(?INFO_KEYS, State)), - mainloop(Deb, State); - {'$gen_call', From, {info, Items}} -> - gen_server:reply(From, try {ok, infos(Items, State)} - catch Error -> {error, Error} - end), - mainloop(Deb, State); - {'$gen_cast', emit_stats} -> - State1 = internal_emit_stats(State), - mainloop(Deb, State1); - {system, From, Request} -> - sys:handle_system_msg(Request, From, - Parent, ?MODULE, Deb, State); - Other -> - %% internal error -> something worth dying for - exit({unexpected_message, Other}) - end. - -switch_callback(State = #v1{connection_state = blocked, - heartbeater = Heartbeater}, Callback, Length) -> - ok = rabbit_heartbeat:pause_monitor(Heartbeater), - State#v1{callback = Callback, recv_length = Length, recv_ref = none}; -switch_callback(State, Callback, Length) -> - Ref = inet_op(fun () -> rabbit_net:async_recv( - State#v1.sock, Length, infinity) end), - State#v1{callback = Callback, recv_length = Length, recv_ref = Ref}. - -terminate(Explanation, State) when ?IS_RUNNING(State) -> - {normal, send_exception(State, 0, - rabbit_misc:amqp_error( - connection_forced, Explanation, [], none))}; -terminate(_Explanation, State) -> - {force, State}. - -internal_conserve_memory(true, State = #v1{connection_state = running}) -> - State#v1{connection_state = blocking}; -internal_conserve_memory(false, State = #v1{connection_state = blocking}) -> - State#v1{connection_state = running}; -internal_conserve_memory(false, State = #v1{connection_state = blocked, - heartbeater = Heartbeater, - callback = Callback, - recv_length = Length, - recv_ref = none}) -> - ok = rabbit_heartbeat:resume_monitor(Heartbeater), - switch_callback(State#v1{connection_state = running}, Callback, Length); -internal_conserve_memory(_Conserve, State) -> - State. - -close_connection(State = #v1{queue_collector = Collector, - connection = #connection{ - timeout_sec = TimeoutSec}}) -> - %% The spec says "Exclusive queues may only be accessed by the - %% current connection, and are deleted when that connection - %% closes." This does not strictly imply synchrony, but in - %% practice it seems to be what people assume. - rabbit_queue_collector:delete_all(Collector), - %% We terminate the connection after the specified interval, but - %% no later than ?CLOSING_TIMEOUT seconds. - TimeoutMillisec = - 1000 * if TimeoutSec > 0 andalso - TimeoutSec < ?CLOSING_TIMEOUT -> TimeoutSec; - true -> ?CLOSING_TIMEOUT - end, - erlang:send_after(TimeoutMillisec, self(), terminate_connection), - State#v1{connection_state = closed}. - -handle_dependent_exit(ChPid, Reason, State) -> - case termination_kind(Reason) of - controlled -> - channel_cleanup(ChPid), - maybe_close(State); - uncontrolled -> - case channel_cleanup(ChPid) of - undefined -> exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> rabbit_log:error( - "connection ~p, channel ~p - error:~n~p~n", - [self(), Channel, Reason]), - maybe_close( - handle_exception(State, Channel, Reason)) - end - end. - -channel_cleanup(ChPid) -> - case get({ch_pid, ChPid}) of - undefined -> undefined; - {Channel, MRef} -> erase({channel, Channel}), - erase({ch_pid, ChPid}), - erlang:demonitor(MRef, [flush]), - Channel - end. - -all_channels() -> [ChPid || {{ch_pid, ChPid}, _ChannelMRef} <- get()]. - -terminate_channels() -> - NChannels = - length([rabbit_channel:shutdown(ChPid) || ChPid <- all_channels()]), - if NChannels > 0 -> - Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, - TimerRef = erlang:send_after(Timeout, self(), cancel_wait), - wait_for_channel_termination(NChannels, TimerRef); - true -> ok - end. - -wait_for_channel_termination(0, TimerRef) -> - case erlang:cancel_timer(TimerRef) of - false -> receive - cancel_wait -> ok - end; - _ -> ok - end; - -wait_for_channel_termination(N, TimerRef) -> - receive - {'DOWN', _MRef, process, ChPid, Reason} -> - case channel_cleanup(ChPid) of - undefined -> - exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> - case termination_kind(Reason) of - controlled -> - ok; - uncontrolled -> - rabbit_log:error( - "connection ~p, channel ~p - " - "error while terminating:~n~p~n", - [self(), Channel, Reason]) - end, - wait_for_channel_termination(N-1, TimerRef) - end; - cancel_wait -> - exit(channel_termination_timeout) - end. - -maybe_close(State = #v1{connection_state = closing, - connection = #connection{protocol = Protocol}, - sock = Sock}) -> - case all_channels() of - [] -> - NewState = close_connection(State), - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - NewState; - _ -> State - end; -maybe_close(State) -> - State. - -termination_kind(normal) -> controlled; -termination_kind(_) -> uncontrolled. - -handle_frame(Type, 0, Payload, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}}) - when CS =:= closing; CS =:= closed -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - _Other -> State - end; -handle_frame(_Type, _Channel, _Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_frame(Type, 0, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, 0, Type, Payload}); - heartbeat -> State; - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - Other -> throw({unexpected_frame_on_channel0, Other}) - end; -handle_frame(Type, Channel, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, Channel, Type, Payload}); - heartbeat -> throw({unexpected_heartbeat_frame, Channel}); - AnalyzedFrame -> - case get({channel, Channel}) of - {ChPid, FramingState} -> - NewAState = process_channel_frame( - AnalyzedFrame, self(), - Channel, ChPid, FramingState), - put({channel, Channel}, {ChPid, NewAState}), - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - channel_cleanup(ChPid), - State; - {method, MethodName, _} -> - case (State#v1.connection_state =:= blocking - andalso - Protocol:method_has_content(MethodName)) of - true -> State#v1{connection_state = blocked}; - false -> State - end; - _ -> - State - end; - undefined -> - case ?IS_RUNNING(State) of - true -> send_to_new_channel( - Channel, AnalyzedFrame, State); - false -> throw({channel_frame_while_starting, - Channel, State#v1.connection_state, - AnalyzedFrame}) - end - end - end. - -handle_input(frame_header, <>, State) -> - ensure_stats_timer( - switch_callback(State, {frame_payload, Type, Channel, PayloadSize}, - PayloadSize + 1)); - -handle_input({frame_payload, Type, Channel, PayloadSize}, - PayloadAndMarker, State) -> - case PayloadAndMarker of - <> -> - handle_frame(Type, Channel, Payload, - switch_callback(State, frame_header, 7)); - _ -> - throw({bad_payload, Type, Channel, PayloadSize, PayloadAndMarker}) - end; - -%% The two rules pertaining to version negotiation: -%% -%% * If the server cannot support the protocol specified in the -%% protocol header, it MUST respond with a valid protocol header and -%% then close the socket connection. -%% -%% * The server MUST provide a protocol version that is lower than or -%% equal to that requested by the client in the protocol header. -handle_input(handshake, <<"AMQP", 0, 0, 9, 1>>, State) -> - start_connection({0, 9, 1}, rabbit_framing_amqp_0_9_1, State); - -%% This is the protocol header for 0-9, which we can safely treat as -%% though it were 0-9-1. -handle_input(handshake, <<"AMQP", 1, 1, 0, 9>>, State) -> - start_connection({0, 9, 0}, rabbit_framing_amqp_0_9_1, State); - -%% This is what most clients send for 0-8. The 0-8 spec, confusingly, -%% defines the version as 8-0. -handle_input(handshake, <<"AMQP", 1, 1, 8, 0>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -%% The 0-8 spec as on the AMQP web site actually has this as the -%% protocol header; some libraries e.g., py-amqplib, send it when they -%% want 0-8. -handle_input(handshake, <<"AMQP", 1, 1, 9, 1>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -handle_input(handshake, <<"AMQP", A, B, C, D>>, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_version, A, B, C, D}); - -handle_input(handshake, Other, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_header, Other}); - -handle_input(Callback, Data, _State) -> - throw({bad_input, Callback, Data}). - -%% Offer a protocol version to the client. Connection.start only -%% includes a major and minor version number, Luckily 0-9 and 0-9-1 -%% are similar enough that clients will be happy with either. -start_connection({ProtocolMajor, ProtocolMinor, _ProtocolRevision}, - Protocol, - State = #v1{sock = Sock, connection = Connection}) -> - Start = #'connection.start'{ - version_major = ProtocolMajor, - version_minor = ProtocolMinor, - server_properties = server_properties(Protocol), - mechanisms = auth_mechanisms_binary(Sock), - locales = <<"en_US">> }, - ok = send_on_channel0(Sock, Start, Protocol), - switch_callback(State#v1{connection = Connection#connection{ - timeout_sec = ?NORMAL_TIMEOUT, - protocol = Protocol}, - connection_state = starting}, - frame_header, 7). - -refuse_connection(Sock, Exception) -> - ok = inet_op(fun () -> rabbit_net:send(Sock, <<"AMQP",0,0,9,1>>) end), - throw(Exception). - -ensure_stats_timer(State = #v1{stats_timer = StatsTimer, - connection_state = running}) -> - Self = self(), - State#v1{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(Self) end)}; -ensure_stats_timer(State) -> - State. - -%%-------------------------------------------------------------------------- - -handle_method0(MethodName, FieldsBin, - State = #v1{connection = #connection{protocol = Protocol}}) -> - HandleException = - fun(R) -> - case ?IS_RUNNING(State) of - true -> send_exception(State, 0, R); - %% We don't trust the client at this point - force - %% them to wait for a bit so they can't DOS us with - %% repeated failed logins etc. - false -> timer:sleep(?SILENT_CLOSE_DELAY * 1000), - throw({channel0_error, State#v1.connection_state, R}) - end - end, - try - handle_method0(Protocol:decode_method_fields(MethodName, FieldsBin), - State) - catch exit:#amqp_error{method = none} = Reason -> - HandleException(Reason#amqp_error{method = MethodName}); - Type:Reason -> - HandleException({Type, Reason, MethodName, erlang:get_stacktrace()}) - end. - -handle_method0(#'connection.start_ok'{mechanism = Mechanism, - response = Response, - client_properties = ClientProperties}, - State0 = #v1{connection_state = starting, - connection = Connection, - sock = Sock}) -> - AuthMechanism = auth_mechanism_to_module(Mechanism, Sock), - Capabilities = - case rabbit_misc:table_lookup(ClientProperties, <<"capabilities">>) of - {table, Capabilities1} -> Capabilities1; - _ -> [] - end, - State = State0#v1{auth_mechanism = AuthMechanism, - auth_state = AuthMechanism:init(Sock), - connection_state = securing, - connection = - Connection#connection{ - client_properties = ClientProperties, - capabilities = Capabilities}}, - auth_phase(Response, State); - -handle_method0(#'connection.secure_ok'{response = Response}, - State = #v1{connection_state = securing}) -> - auth_phase(Response, State); - -handle_method0(#'connection.tune_ok'{frame_max = FrameMax, - heartbeat = ClientHeartbeat}, - State = #v1{connection_state = tuning, - connection = Connection, - sock = Sock, - start_heartbeat_fun = SHF}) -> - ServerFrameMax = server_frame_max(), - if FrameMax /= 0 andalso FrameMax < ?FRAME_MIN_SIZE -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w < ~w min size", - [FrameMax, ?FRAME_MIN_SIZE]); - ServerFrameMax /= 0 andalso FrameMax > ServerFrameMax -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w > ~w max size", - [FrameMax, ServerFrameMax]); - true -> - Frame = rabbit_binary_generator:build_heartbeat_frame(), - SendFun = fun() -> catch rabbit_net:send(Sock, Frame) end, - Parent = self(), - ReceiveFun = fun() -> Parent ! timeout end, - Heartbeater = SHF(Sock, ClientHeartbeat, SendFun, - ClientHeartbeat, ReceiveFun), - State#v1{connection_state = opening, - connection = Connection#connection{ - timeout_sec = ClientHeartbeat, - frame_max = FrameMax}, - heartbeater = Heartbeater} - end; - -handle_method0(#'connection.open'{virtual_host = VHostPath}, - - State = #v1{connection_state = opening, - connection = Connection = #connection{ - user = User, - protocol = Protocol}, - sock = Sock, - stats_timer = StatsTimer}) -> - ok = rabbit_access_control:check_vhost_access(User, VHostPath), - NewConnection = Connection#connection{vhost = VHostPath}, - ok = send_on_channel0(Sock, #'connection.open_ok'{}, Protocol), - State1 = internal_conserve_memory( - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - State#v1{connection_state = running, - connection = NewConnection}), - rabbit_event:notify(connection_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State1) end), - State1; -handle_method0(#'connection.close'{}, State) when ?IS_RUNNING(State) -> - lists:foreach(fun rabbit_channel:shutdown/1, all_channels()), - maybe_close(State#v1{connection_state = closing}); -handle_method0(#'connection.close'{}, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}, - sock = Sock}) - when CS =:= closing; CS =:= closed -> - %% We're already closed or closing, so we don't need to cleanup - %% anything. - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - State; -handle_method0(#'connection.close_ok'{}, - State = #v1{connection_state = closed}) -> - self() ! terminate_connection, - State; -handle_method0(_Method, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_method0(_Method, #v1{connection_state = S}) -> - rabbit_misc:protocol_error( - channel_error, "unexpected method in connection state ~w", [S]). - -%% Compute frame_max for this instance. Could simply use 0, but breaks -%% QPid Java client. -server_frame_max() -> - {ok, FrameMax} = application:get_env(rabbit, frame_max), - FrameMax. - -send_on_channel0(Sock, Method, Protocol) -> - ok = rabbit_writer:internal_send_command(Sock, 0, Method, Protocol). - -auth_mechanism_to_module(TypeBin, Sock) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown authentication mechanism '~s'", - [TypeBin]); - T -> - case {lists:member(T, auth_mechanisms(Sock)), - rabbit_registry:lookup_module(auth_mechanism, T)} of - {true, {ok, Module}} -> - Module; - _ -> - rabbit_misc:protocol_error( - command_invalid, - "invalid authentication mechanism '~s'", [T]) - end - end. - -auth_mechanisms(Sock) -> - {ok, Configured} = application:get_env(auth_mechanisms), - [Name || {Name, Module} <- rabbit_registry:lookup_all(auth_mechanism), - Module:should_offer(Sock), lists:member(Name, Configured)]. - -auth_mechanisms_binary(Sock) -> - list_to_binary( - string:join([atom_to_list(A) || A <- auth_mechanisms(Sock)], " ")). - -auth_phase(Response, - State = #v1{auth_mechanism = AuthMechanism, - auth_state = AuthState, - connection = Connection = - #connection{protocol = Protocol}, - sock = Sock}) -> - case AuthMechanism:handle_response(Response, AuthState) of - {refused, Msg, Args} -> - rabbit_misc:protocol_error( - access_refused, "~s login refused: ~s", - [proplists:get_value(name, AuthMechanism:description()), - io_lib:format(Msg, Args)]); - {protocol_error, Msg, Args} -> - rabbit_misc:protocol_error(syntax_error, Msg, Args); - {challenge, Challenge, AuthState1} -> - Secure = #'connection.secure'{challenge = Challenge}, - ok = send_on_channel0(Sock, Secure, Protocol), - State#v1{auth_state = AuthState1}; - {ok, User} -> - Tune = #'connection.tune'{channel_max = 0, - frame_max = server_frame_max(), - heartbeat = 0}, - ok = send_on_channel0(Sock, Tune, Protocol), - State#v1{connection_state = tuning, - connection = Connection#connection{user = User}} - end. - -%%-------------------------------------------------------------------------- - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, #v1{}) -> - self(); -i(address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({A, _}) -> A end, Sock); -i(port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({_, P}) -> P end, Sock); -i(peer_address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({A, _}) -> A end, Sock); -i(peer_port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({_, P}) -> P end, Sock); -i(ssl, #v1{sock = Sock}) -> - rabbit_net:is_ssl(Sock); -i(ssl_protocol, #v1{sock = Sock}) -> - ssl_info(fun ({P, _}) -> P end, Sock); -i(ssl_key_exchange, #v1{sock = Sock}) -> - ssl_info(fun ({_, {K, _, _}}) -> K end, Sock); -i(ssl_cipher, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, C, _}}) -> C end, Sock); -i(ssl_hash, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, _, H}}) -> H end, Sock); -i(peer_cert_issuer, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_issuer/1, Sock); -i(peer_cert_subject, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_subject/1, Sock); -i(peer_cert_validity, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_validity/1, Sock); -i(SockStat, #v1{sock = Sock}) when SockStat =:= recv_oct; - SockStat =:= recv_cnt; - SockStat =:= send_oct; - SockStat =:= send_cnt; - SockStat =:= send_pend -> - socket_info(fun () -> rabbit_net:getstat(Sock, [SockStat]) end, - fun ([{_, I}]) -> I end); -i(state, #v1{connection_state = S}) -> - S; -i(channels, #v1{}) -> - length(all_channels()); -i(protocol, #v1{connection = #connection{protocol = none}}) -> - none; -i(protocol, #v1{connection = #connection{protocol = Protocol}}) -> - Protocol:version(); -i(auth_mechanism, #v1{auth_mechanism = none}) -> - none; -i(auth_mechanism, #v1{auth_mechanism = Mechanism}) -> - proplists:get_value(name, Mechanism:description()); -i(user, #v1{connection = #connection{user = #user{username = Username}}}) -> - Username; -i(user, #v1{connection = #connection{user = none}}) -> - ''; -i(vhost, #v1{connection = #connection{vhost = VHost}}) -> - VHost; -i(timeout, #v1{connection = #connection{timeout_sec = Timeout}}) -> - Timeout; -i(frame_max, #v1{connection = #connection{frame_max = FrameMax}}) -> - FrameMax; -i(client_properties, #v1{connection = #connection{ - client_properties = ClientProperties}}) -> - ClientProperties; -i(Item, #v1{}) -> - throw({bad_argument, Item}). - -socket_info(Get, Select, Sock) -> - socket_info(fun() -> Get(Sock) end, Select). - -socket_info(Get, Select) -> - case Get() of - {ok, T} -> Select(T); - {error, _} -> '' - end. - -ssl_info(F, Sock) -> - %% The first ok form is R14 - %% The second is R13 - the extra term is exportability (by inspection, - %% the docs are wrong) - case rabbit_net:ssl_info(Sock) of - nossl -> ''; - {error, _} -> ''; - {ok, {P, {K, C, H}}} -> F({P, {K, C, H}}); - {ok, {P, {K, C, H, _}}} -> F({P, {K, C, H}}) - end. - -cert_info(F, Sock) -> - case rabbit_net:peercert(Sock) of - nossl -> ''; - {error, no_peercert} -> ''; - {ok, Cert} -> list_to_binary(F(Cert)) - end. - -%%-------------------------------------------------------------------------- - -send_to_new_channel(Channel, AnalyzedFrame, State) -> - #v1{sock = Sock, queue_collector = Collector, - channel_sup_sup_pid = ChanSupSup, - connection = #connection{protocol = Protocol, - frame_max = FrameMax, - user = User, - vhost = VHost, - capabilities = Capabilities}} = State, - {ok, _ChSupPid, {ChPid, AState}} = - rabbit_channel_sup_sup:start_channel( - ChanSupSup, {tcp, Sock, Channel, FrameMax, self(), Protocol, User, - VHost, Capabilities, Collector}), - MRef = erlang:monitor(process, ChPid), - NewAState = process_channel_frame(AnalyzedFrame, self(), - Channel, ChPid, AState), - put({channel, Channel}, {ChPid, NewAState}), - put({ch_pid, ChPid}, {Channel, MRef}), - State. - -process_channel_frame(Frame, ErrPid, Channel, ChPid, AState) -> - case rabbit_command_assembler:process(Frame, AState) of - {ok, NewAState} -> NewAState; - {ok, Method, NewAState} -> rabbit_channel:do(ChPid, Method), - NewAState; - {ok, Method, Content, NewAState} -> rabbit_channel:do(ChPid, - Method, Content), - NewAState; - {error, Reason} -> ErrPid ! {channel_exit, Channel, - Reason}, - AState - end. - -handle_exception(State = #v1{connection_state = closed}, _Channel, _Reason) -> - State; -handle_exception(State, Channel, Reason) -> - send_exception(State, Channel, Reason). - -send_exception(State = #v1{connection = #connection{protocol = Protocol}}, - Channel, Reason) -> - {0, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - terminate_channels(), - State1 = close_connection(State), - ok = rabbit_writer:internal_send_command( - State1#v1.sock, 0, CloseMethod, Protocol), - State1. - -internal_emit_stats(State = #v1{stats_timer = StatsTimer}) -> - rabbit_event:notify(connection_stats, infos(?STATISTICS_KEYS, State)), - State#v1{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}. diff --git a/src/rabbit_registry.erl b/src/rabbit_registry.erl deleted file mode 100644 index 9821ae7b..00000000 --- a/src/rabbit_registry.erl +++ /dev/null @@ -1,124 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_registry). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --export([register/3, binary_to_type/1, lookup_module/2, lookup_all/1]). - --define(SERVER, ?MODULE). --define(ETS_NAME, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/3 :: (atom(), binary(), atom()) -> 'ok'). --spec(binary_to_type/1 :: - (binary()) -> atom() | rabbit_types:error('not_found')). --spec(lookup_module/2 :: - (atom(), atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). --spec(lookup_all/1 :: (atom()) -> [{atom(), atom()}]). - --endif. - -%%--------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -register(Class, TypeName, ModuleName) -> - gen_server:call(?SERVER, {register, Class, TypeName, ModuleName}, infinity). - -%% This is used with user-supplied arguments (e.g., on exchange -%% declare), so we restrict it to existing atoms only. This means it -%% can throw a badarg, indicating that the type cannot have been -%% registered. -binary_to_type(TypeBin) when is_binary(TypeBin) -> - case catch list_to_existing_atom(binary_to_list(TypeBin)) of - {'EXIT', {badarg, _}} -> {error, not_found}; - TypeAtom -> TypeAtom - end. - -lookup_module(Class, T) when is_atom(T) -> - case ets:lookup(?ETS_NAME, {Class, T}) of - [{_, Module}] -> - {ok, Module}; - [] -> - {error, not_found} - end. - -lookup_all(Class) -> - [{K, V} || [K, V] <- ets:match(?ETS_NAME, {{Class, '$1'}, '$2'})]. - -%%--------------------------------------------------------------------------- - -internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> - list_to_atom(binary_to_list(TypeBin)). - -internal_register(Class, TypeName, ModuleName) - when is_atom(Class), is_binary(TypeName), is_atom(ModuleName) -> - ok = sanity_check_module(class_module(Class), ModuleName), - true = ets:insert(?ETS_NAME, - {{Class, internal_binary_to_type(TypeName)}, ModuleName}), - ok. - -sanity_check_module(ClassModule, Module) -> - case catch lists:member(ClassModule, - lists:flatten( - [Bs || {Attr, Bs} <- - Module:module_info(attributes), - Attr =:= behavior orelse - Attr =:= behaviour])) of - {'EXIT', {undef, _}} -> {error, not_module}; - false -> {error, {not_type, ClassModule}}; - true -> ok - end. - -class_module(exchange) -> rabbit_exchange_type; -class_module(auth_mechanism) -> rabbit_auth_mechanism. - -%%--------------------------------------------------------------------------- - -init([]) -> - ?ETS_NAME = ets:new(?ETS_NAME, [protected, set, named_table]), - {ok, none}. - -handle_call({register, Class, TypeName, ModuleName}, _From, State) -> - ok = internal_register(Class, TypeName, ModuleName), - {reply, ok, State}; - -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_restartable_sup.erl b/src/rabbit_restartable_sup.erl deleted file mode 100644 index 0491244b..00000000 --- a/src/rabbit_restartable_sup.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_restartable_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -start_link(Name, {_M, _F, _A} = Fun) -> - supervisor:start_link({local, Name}, ?MODULE, [Fun]). - -init([{Mod, _F, _A} = Fun]) -> - {ok, {{one_for_one, 10, 10}, - [{Mod, Fun, transient, ?MAX_WAIT, worker, [Mod]}]}}. diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl deleted file mode 100644 index f6a1c92f..00000000 --- a/src/rabbit_router.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_router). --include_lib("stdlib/include/qlc.hrl"). --include("rabbit.hrl"). - --export([deliver/2, match_bindings/2, match_routing_key/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([routing_key/0, routing_result/0, match_result/0]). - --type(routing_key() :: binary()). --type(routing_result() :: 'routed' | 'unroutable' | 'not_delivered'). --type(qpids() :: [pid()]). --type(match_result() :: [rabbit_types:binding_destination()]). - --spec(deliver/2 :: ([rabbit_amqqueue:name()], rabbit_types:delivery()) -> - {routing_result(), qpids()}). --spec(match_bindings/2 :: (rabbit_types:binding_source(), - fun ((rabbit_types:binding()) -> boolean())) -> - match_result()). --spec(match_routing_key/2 :: (rabbit_types:binding_source(), - [routing_key()] | ['_']) -> - match_result()). - --endif. - -%%---------------------------------------------------------------------------- - -deliver(QNames, Delivery = #delivery{mandatory = false, - immediate = false}) -> - %% optimisation: when Mandatory = false and Immediate = false, - %% rabbit_amqqueue:deliver will deliver the message to the queue - %% process asynchronously, and return true, which means all the - %% QPids will always be returned. It is therefore safe to use a - %% fire-and-forget cast here and return the QPids - the semantics - %% is preserved. This scales much better than the non-immediate - %% case below. - QPids = lookup_qpids(QNames), - delegate:invoke_no_result( - QPids, fun (Pid) -> rabbit_amqqueue:deliver(Pid, Delivery) end), - {routed, QPids}; - -deliver(QNames, Delivery = #delivery{mandatory = Mandatory, - immediate = Immediate}) -> - QPids = lookup_qpids(QNames), - {Success, _} = - delegate:invoke(QPids, - fun (Pid) -> - rabbit_amqqueue:deliver(Pid, Delivery) - end), - {Routed, Handled} = - lists:foldl(fun fold_deliveries/2, {false, []}, Success), - check_delivery(Mandatory, Immediate, {Routed, Handled}). - - -%% TODO: Maybe this should be handled by a cursor instead. -%% TODO: This causes a full scan for each entry with the same source -match_bindings(SrcName, Match) -> - Query = qlc:q([DestinationName || - #route{binding = Binding = #binding{ - source = SrcName1, - destination = DestinationName}} <- - mnesia:table(rabbit_route), - SrcName == SrcName1, - Match(Binding)]), - mnesia:async_dirty(fun qlc:e/1, [Query]). - -match_routing_key(SrcName, [RoutingKey]) -> - MatchHead = #route{binding = #binding{source = SrcName, - destination = '$1', - key = RoutingKey, - _ = '_'}}, - mnesia:dirty_select(rabbit_route, [{MatchHead, [], ['$1']}]); -match_routing_key(SrcName, [_|_] = RoutingKeys) -> - Condition = list_to_tuple(['orelse' | [{'=:=', '$2', RKey} || - RKey <- RoutingKeys]]), - MatchHead = #route{binding = #binding{source = SrcName, - destination = '$1', - key = '$2', - _ = '_'}}, - mnesia:dirty_select(rabbit_route, [{MatchHead, [Condition], ['$1']}]). - - - -%%-------------------------------------------------------------------- - -fold_deliveries({Pid, true},{_, Handled}) -> {true, [Pid|Handled]}; -fold_deliveries({_, false},{_, Handled}) -> {true, Handled}. - -%% check_delivery(Mandatory, Immediate, {WasRouted, QPids}) -check_delivery(true, _ , {false, []}) -> {unroutable, []}; -check_delivery(_ , true, {_ , []}) -> {not_delivered, []}; -check_delivery(_ , _ , {_ , Qs}) -> {routed, Qs}. - -lookup_qpids(QNames) -> - lists:foldl(fun (QName, QPids) -> - case mnesia:dirty_read({rabbit_queue, QName}) of - [#amqqueue{pid = QPid}] -> [QPid | QPids]; - [] -> QPids - end - end, [], QNames). diff --git a/src/rabbit_sasl_report_file_h.erl b/src/rabbit_sasl_report_file_h.erl deleted file mode 100644 index 6f3c5c75..00000000 --- a/src/rabbit_sasl_report_file_h.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sasl_report_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_sasl_report_file_h is a wrapper around the sasl_report_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers and performing -%% log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "sasl log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without -%% doing any log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init({File, sasl_error_logger_type()}). - -handle_event(Event, State) -> - sasl_report_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - sasl_report_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - sasl_report_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - sasl_report_file_h:terminate(Reason, State). - -code_change(_OldVsn, State, _Extra) -> - %% There is no sasl_report_file_h:code_change/3 - {ok, State}. - -%%---------------------------------------------------------------------- - -sasl_error_logger_type() -> - case application:get_env(sasl, errlog_type) of - {ok, error} -> error; - {ok, progress} -> progress; - {ok, all} -> all; - {ok, Bad} -> throw({error, {wrong_errlog_type, Bad}}); - _ -> all - end. diff --git a/src/rabbit_ssl.erl b/src/rabbit_ssl.erl deleted file mode 100644 index 1953b6b8..00000000 --- a/src/rabbit_ssl.erl +++ /dev/null @@ -1,173 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_ssl). - --include("rabbit.hrl"). - --include_lib("public_key/include/public_key.hrl"). - --export([peer_cert_issuer/1, peer_cert_subject/1, peer_cert_validity/1]). --export([peer_cert_subject_item/2]). - -%%-------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([certificate/0]). - --type(certificate() :: binary()). - --spec(peer_cert_issuer/1 :: (certificate()) -> string()). --spec(peer_cert_subject/1 :: (certificate()) -> string()). --spec(peer_cert_validity/1 :: (certificate()) -> string()). --spec(peer_cert_subject_item/2 :: - (certificate(), tuple()) -> string() | 'not_found'). - --endif. - -%%-------------------------------------------------------------------------- -%% High-level functions used by reader -%%-------------------------------------------------------------------------- - -%% Return a string describing the certificate's issuer. -peer_cert_issuer(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - issuer = Issuer }}) -> - format_rdn_sequence(Issuer) - end, Cert). - -%% Return a string describing the certificate's subject, as per RFC4514. -peer_cert_subject(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - format_rdn_sequence(Subject) - end, Cert). - -%% Return a part of the certificate's subject. -peer_cert_subject_item(Cert, Type) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - find_by_type(Type, Subject) - end, Cert). - -%% Return a string describing the certificate's validity. -peer_cert_validity(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - validity = {'Validity', Start, End} }}) -> - lists:flatten( - io_lib:format("~s - ~s", [format_asn1_value(Start), - format_asn1_value(End)])) - end, Cert). - -%%-------------------------------------------------------------------------- - -cert_info(F, Cert) -> - F(case public_key:pkix_decode_cert(Cert, otp) of - {ok, DecCert} -> DecCert; %%pre R14B - DecCert -> DecCert %%R14B onwards - end). - -find_by_type(Type, {rdnSequence, RDNs}) -> - case [V || #'AttributeTypeAndValue'{type = T, value = V} - <- lists:flatten(RDNs), - T == Type] of - [{printableString, S}] -> S; - [] -> not_found - end. - -%%-------------------------------------------------------------------------- -%% Formatting functions -%%-------------------------------------------------------------------------- - -%% Format and rdnSequence as a RFC4514 subject string. -format_rdn_sequence({rdnSequence, Seq}) -> - string:join(lists:reverse([format_complex_rdn(RDN) || RDN <- Seq]), ","). - -%% Format an RDN set. -format_complex_rdn(RDNs) -> - string:join([format_rdn(RDN) || RDN <- RDNs], "+"). - -%% Format an RDN. If the type name is unknown, use the dotted decimal -%% representation. See RFC4514, section 2.3. -format_rdn(#'AttributeTypeAndValue'{type = T, value = V}) -> - FV = escape_rdn_value(format_asn1_value(V)), - Fmts = [{?'id-at-surname' , "SN"}, - {?'id-at-givenName' , "GIVENNAME"}, - {?'id-at-initials' , "INITIALS"}, - {?'id-at-generationQualifier' , "GENERATIONQUALIFIER"}, - {?'id-at-commonName' , "CN"}, - {?'id-at-localityName' , "L"}, - {?'id-at-stateOrProvinceName' , "ST"}, - {?'id-at-organizationName' , "O"}, - {?'id-at-organizationalUnitName' , "OU"}, - {?'id-at-title' , "TITLE"}, - {?'id-at-countryName' , "C"}, - {?'id-at-serialNumber' , "SERIALNUMBER"}, - {?'id-at-pseudonym' , "PSEUDONYM"}, - {?'id-domainComponent' , "DC"}, - {?'id-emailAddress' , "EMAILADDRESS"}, - {?'street-address' , "STREET"}], - case proplists:lookup(T, Fmts) of - {_, Fmt} -> - io_lib:format(Fmt ++ "=~s", [FV]); - none when is_tuple(T) -> - TypeL = [io_lib:format("~w", [X]) || X <- tuple_to_list(T)], - io_lib:format("~s:~s", [string:join(TypeL, "."), FV]); - none -> - io_lib:format("~p:~s", [T, FV]) - end. - -%% Escape a string as per RFC4514. -escape_rdn_value(V) -> - escape_rdn_value(V, start). - -escape_rdn_value([], _) -> - []; -escape_rdn_value([C | S], start) when C =:= $ ; C =:= $# -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value(S, start) -> - escape_rdn_value(S, middle); -escape_rdn_value([$ ], middle) -> - [$\\, $ ]; -escape_rdn_value([C | S], middle) when C =:= $"; C =:= $+; C =:= $,; C =:= $;; - C =:= $<; C =:= $>; C =:= $\\ -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value([C | S], middle) when C < 32 ; C =:= 127 -> - %% only U+0000 needs escaping, but for display purposes it's handy - %% to escape all non-printable chars - lists:flatten(io_lib:format("\\~2.16.0B", [C])) ++ - escape_rdn_value(S, middle); -escape_rdn_value([C | S], middle) -> - [C | escape_rdn_value(S, middle)]. - -%% Get the string representation of an OTPCertificate field. -format_asn1_value({ST, S}) when ST =:= teletexString; ST =:= printableString; - ST =:= universalString; ST =:= utf8String; - ST =:= bmpString -> - if is_binary(S) -> binary_to_list(S); - true -> S - end; -format_asn1_value({utcTime, [Y1, Y2, M1, M2, D1, D2, H1, H2, - Min1, Min2, S1, S2, $Z]}) -> - io_lib:format("20~c~c-~c~c-~c~cT~c~c:~c~c:~c~cZ", - [Y1, Y2, M1, M2, D1, D2, H1, H2, Min1, Min2, S1, S2]); -format_asn1_value(V) -> - io_lib:format("~p", [V]). diff --git a/src/rabbit_sup.erl b/src/rabbit_sup.erl deleted file mode 100644 index 508b127e..00000000 --- a/src/rabbit_sup.erl +++ /dev/null @@ -1,64 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sup). - --behaviour(supervisor). - --export([start_link/0, start_child/1, start_child/2, start_child/3, - start_restartable_child/1, start_restartable_child/2, stop_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Mod) -> - start_child(Mod, []). - -start_child(Mod, Args) -> - start_child(Mod, Mod, Args). - -start_child(ChildId, Mod, Args) -> - {ok, _} = supervisor:start_child(?SERVER, - {ChildId, {Mod, start_link, Args}, - transient, ?MAX_WAIT, worker, [Mod]}), - ok. - -start_restartable_child(Mod) -> - start_restartable_child(Mod, []). - -start_restartable_child(Mod, Args) -> - Name = list_to_atom(atom_to_list(Mod) ++ "_sup"), - {ok, _} = supervisor:start_child( - ?SERVER, - {Name, {rabbit_restartable_sup, start_link, - [Name, {Mod, start_link, Args}]}, - transient, infinity, supervisor, [rabbit_restartable_sup]}), - ok. - -stop_child(ChildId) -> - case supervisor:terminate_child(?SERVER, ChildId) of - ok -> supervisor:delete_child(?SERVER, ChildId); - E -> E - end. - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl deleted file mode 100644 index 294fae97..00000000 --- a/src/rabbit_tests.erl +++ /dev/null @@ -1,2425 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests). - --compile([export_all]). - --export([all_tests/0, test_parsing/0]). - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). --include_lib("kernel/include/file.hrl"). - --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). --define(CLEANUP_QUEUE_NAME, <<"cleanup-queue">>). - -test_content_prop_roundtrip(Datum, Binary) -> - Types = [element(1, E) || E <- Datum], - Values = [element(2, E) || E <- Datum], - Values = rabbit_binary_parser:parse_properties(Types, Binary), %% assertion - Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion - -all_tests() -> - passed = gm_tests:all_tests(), - application:set_env(rabbit, file_handles_high_watermark, 10, infinity), - ok = file_handle_cache:set_limit(10), - passed = test_file_handle_cache(), - passed = test_backing_queue(), - passed = test_priority_queue(), - passed = test_bpqueue(), - passed = test_pg_local(), - passed = test_unfold(), - passed = test_supervisor_delayed_restart(), - passed = test_parsing(), - passed = test_content_framing(), - passed = test_content_transcoding(), - passed = test_topic_matching(), - passed = test_log_management(), - passed = test_app_management(), - passed = test_log_management_during_startup(), - passed = test_statistics(), - passed = test_option_parser(), - passed = test_cluster_management(), - passed = test_user_management(), - passed = test_server_status(), - passed = test_confirms(), - passed = maybe_run_cluster_dependent_tests(), - passed = test_configurable_server_properties(), - passed. - -maybe_run_cluster_dependent_tests() -> - SecondaryNode = rabbit_misc:makenode("hare"), - - case net_adm:ping(SecondaryNode) of - pong -> passed = run_cluster_dependent_tests(SecondaryNode); - pang -> io:format("Skipping cluster dependent tests with node ~p~n", - [SecondaryNode]) - end, - passed. - -run_cluster_dependent_tests(SecondaryNode) -> - SecondaryNodeS = atom_to_list(SecondaryNode), - - ok = control_action(stop_app, []), - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - - io:format("Running cluster dependent tests with node ~p~n", [SecondaryNode]), - passed = test_delegates_async(SecondaryNode), - passed = test_delegates_sync(SecondaryNode), - passed = test_queue_cleanup(SecondaryNode), - passed = test_declare_on_dead_queue(SecondaryNode), - - %% we now run the tests remotely, so that code coverage on the - %% local node picks up more of the delegate - Node = node(), - Self = self(), - Remote = spawn(SecondaryNode, - fun () -> Rs = [ test_delegates_async(Node), - test_delegates_sync(Node), - test_queue_cleanup(Node), - test_declare_on_dead_queue(Node) ], - Self ! {self(), Rs} - end), - receive - {Remote, Result} -> - Result = lists:duplicate(length(Result), passed) - after 30000 -> - throw(timeout) - end, - - passed. - -test_priority_queue() -> - - false = priority_queue:is_queue(not_a_queue), - - %% empty Q - Q = priority_queue:new(), - {true, true, 0, [], []} = test_priority_queue(Q), - - %% 1-4 element no-priority Q - true = lists:all(fun (X) -> X =:= passed end, - lists:map(fun test_simple_n_element_queue/1, - lists:seq(1, 4))), - - %% 1-element priority Q - Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), - - %% 2-element same-priority Q - Q2 = priority_queue:in(bar, 1, Q1), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q2), - - %% 2-element different-priority Q - Q3 = priority_queue:in(bar, 2, Q1), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q3), - - %% 1-element negative priority Q - Q4 = priority_queue:in(foo, -1, priority_queue:new()), - {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - - %% merge 2 * 2-element multi-different-priority Qs - Q11 = priority_queue:join(Q6, Q5), - {true, false, 4, [{1, bar}, {0, foo}, {0, foo}, {0, bar}], - [bar, foo, foo, bar]} = test_priority_queue(Q11), - - %% and the other way around - Q12 = priority_queue:join(Q5, Q6), - {true, false, 4, [{1, bar}, {0, foo}, {0, bar}, {0, foo}], - [bar, foo, bar, foo]} = test_priority_queue(Q12), - - %% merge with negative priorities - Q13 = priority_queue:join(Q4, Q5), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q13), - - %% and the other way around - Q14 = priority_queue:join(Q5, Q4), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q14), - - %% joins with empty queues: - Q1 = priority_queue:join(Q, Q1), - Q1 = priority_queue:join(Q1, Q), - - %% insert with priority into non-empty zero-priority queue - Q15 = priority_queue:in(baz, 1, Q5), - {true, false, 3, [{1, baz}, {0, foo}, {0, bar}], [baz, foo, bar]} = - test_priority_queue(Q15), - - passed. - -priority_queue_in_all(Q, L) -> - lists:foldl(fun (X, Acc) -> priority_queue:in(X, Acc) end, Q, L). - -priority_queue_out_all(Q) -> - case priority_queue:out(Q) of - {empty, _} -> []; - {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] - end. - -test_priority_queue(Q) -> - {priority_queue:is_queue(Q), - priority_queue:is_empty(Q), - priority_queue:len(Q), - priority_queue:to_list(Q), - priority_queue_out_all(Q)}. - -test_bpqueue() -> - Q = bpqueue:new(), - true = bpqueue:is_empty(Q), - 0 = bpqueue:len(Q), - [] = bpqueue:to_list(Q), - - Q1 = bpqueue_test(fun bpqueue:in/3, fun bpqueue:out/1, - fun bpqueue:to_list/1, - fun bpqueue:foldl/3, fun bpqueue:map_fold_filter_l/4), - Q2 = bpqueue_test(fun bpqueue:in_r/3, fun bpqueue:out_r/1, - fun (QR) -> lists:reverse( - [{P, lists:reverse(L)} || - {P, L} <- bpqueue:to_list(QR)]) - end, - fun bpqueue:foldr/3, fun bpqueue:map_fold_filter_r/4), - - [{foo, [1, 2]}, {bar, [3]}] = bpqueue:to_list(bpqueue:join(Q, Q1)), - [{bar, [3]}, {foo, [2, 1]}] = bpqueue:to_list(bpqueue:join(Q2, Q)), - [{foo, [1, 2]}, {bar, [3, 3]}, {foo, [2,1]}] = - bpqueue:to_list(bpqueue:join(Q1, Q2)), - - [{foo, [1, 2]}, {bar, [3]}, {foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list(bpqueue:join(Q1, Q1)), - - [{foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list( - bpqueue:from_list( - [{x, []}, {foo, [1]}, {y, []}, {foo, [2]}, {bar, [3]}, {z, []}])), - - [{undefined, [a]}] = bpqueue:to_list(bpqueue:from_list([{undefined, [a]}])), - - {4, [a,b,c,d]} = - bpqueue:foldl( - fun (Prefix, Value, {Prefix, Acc}) -> - {Prefix + 1, [Value | Acc]} - end, - {0, []}, bpqueue:from_list([{0,[d]}, {1,[c]}, {2,[b]}, {3,[a]}])), - - [{bar,3}, {foo,2}, {foo,1}] = - bpqueue:foldr(fun (P, V, I) -> [{P,V} | I] end, [], Q2), - - BPQL = [{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], - BPQ = bpqueue:from_list(BPQL), - - %% no effect - {BPQL, 0} = bpqueue_mffl([none], {none, []}, BPQ), - {BPQL, 0} = bpqueue_mffl([foo,bar], {none, [1]}, BPQ), - {BPQL, 0} = bpqueue_mffl([bar], {none, [3]}, BPQ), - {BPQL, 0} = bpqueue_mffr([bar], {foo, [5]}, BPQ), - - %% process 1 item - {[{foo,[-1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([foo,bar], {foo, [2]}, BPQ), - {[{foo,[1,2,2]}, {bar,[-3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([bar], {bar, [4]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,-7]}], 1} = - bpqueue_mffr([foo,bar], {foo, [6]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4]}, {baz,[-5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffr([bar], {baz, [4]}, BPQ), - - %% change prefix - {[{bar,[-1,-2,-2,-3,-4,-5,-5,-6,-7]}], 9} = - bpqueue_mffl([foo,bar], {bar, []}, BPQ), - {[{bar,[-1,-2,-2,3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {bar, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6]}, {foo,[7]}], 5} = - bpqueue_mffl([foo], {bar, [7]}, BPQ), - {[{foo,[1,2,2,-3,-4]}, {bar,[5]}, {foo,[5,6,7]}], 2} = - bpqueue_mffl([bar], {foo, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6,-7]}], 6} = - bpqueue_mffl([foo], {bar, []}, BPQ), - {[{foo,[1,2,2,-3,-4,-5,5,6,7]}], 3} = - bpqueue_mffl([bar], {foo, []}, BPQ), - - %% edge cases - {[{foo,[-1,-2,-2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {foo, [5]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[-5,-6,-7]}], 3} = - bpqueue_mffr([foo], {foo, [2]}, BPQ), - - passed. - -bpqueue_test(In, Out, List, Fold, MapFoldFilter) -> - Q = bpqueue:new(), - {empty, _Q} = Out(Q), - - ok = Fold(fun (Prefix, Value, ok) -> {error, Prefix, Value} end, ok, Q), - {Q1M, 0} = MapFoldFilter(fun(_P) -> throw(explosion) end, - fun(_V, _N) -> throw(explosion) end, 0, Q), - [] = bpqueue:to_list(Q1M), - - Q1 = In(bar, 3, In(foo, 2, In(foo, 1, Q))), - false = bpqueue:is_empty(Q1), - 3 = bpqueue:len(Q1), - [{foo, [1, 2]}, {bar, [3]}] = List(Q1), - - {{value, foo, 1}, Q3} = Out(Q1), - {{value, foo, 2}, Q4} = Out(Q3), - {{value, bar, 3}, _Q5} = Out(Q4), - - F = fun (QN) -> - MapFoldFilter(fun (foo) -> true; - (_) -> false - end, - fun (2, _Num) -> stop; - (V, Num) -> {bar, -V, V - Num} end, - 0, QN) - end, - {Q6, 0} = F(Q), - [] = bpqueue:to_list(Q6), - {Q7, 1} = F(Q1), - [{bar, [-1]}, {foo, [2]}, {bar, [3]}] = List(Q7), - - Q1. - -bpqueue_mffl(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_l/4, FF1A, FF2A, BPQ). - -bpqueue_mffr(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_r/4, FF1A, FF2A, BPQ). - -bpqueue_mff(Fold, FF1A, FF2A, BPQ) -> - FF1 = fun (Prefixes) -> - fun (P) -> lists:member(P, Prefixes) end - end, - FF2 = fun ({Prefix, Stoppers}) -> - fun (Val, Num) -> - case lists:member(Val, Stoppers) of - true -> stop; - false -> {Prefix, -Val, 1 + Num} - end - end - end, - Queue_to_list = fun ({LHS, RHS}) -> {bpqueue:to_list(LHS), RHS} end, - - Queue_to_list(Fold(FF1(FF1A), FF2(FF2A), 0, BPQ)). - -test_simple_n_element_queue(N) -> - Items = lists:seq(1, N), - Q = priority_queue_in_all(priority_queue:new(), Items), - ToListRes = [{0, X} || X <- Items], - {true, false, N, ToListRes, Items} = test_priority_queue(Q), - passed. - -test_pg_local() -> - [P, Q] = [spawn(fun () -> receive X -> X end end) || _ <- [x, x]], - check_pg_local(ok, [], []), - check_pg_local(pg_local:join(a, P), [P], []), - check_pg_local(pg_local:join(b, P), [P], [P]), - check_pg_local(pg_local:join(a, P), [P, P], [P]), - check_pg_local(pg_local:join(a, Q), [P, P, Q], [P]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(a, P), [P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(b, P), [P, Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - [begin X ! done, - Ref = erlang:monitor(process, X), - receive {'DOWN', Ref, process, X, _Info} -> ok end - end || X <- [P, Q]], - check_pg_local(ok, [], []), - passed. - -check_pg_local(ok, APids, BPids) -> - ok = pg_local:sync(), - [true, true] = [lists:sort(Pids) == lists:sort(pg_local:get_members(Key)) || - {Key, Pids} <- [{a, APids}, {b, BPids}]]. - -test_unfold() -> - {[], test} = rabbit_misc:unfold(fun (_V) -> false end, test), - List = lists:seq(2,20,2), - {List, 0} = rabbit_misc:unfold(fun (0) -> false; - (N) -> {true, N*2, N-1} - end, 10), - passed. - -test_parsing() -> - passed = test_content_properties(), - passed = test_field_values(), - passed. - -test_content_properties() -> - test_content_prop_roundtrip([], <<0, 0>>), - test_content_prop_roundtrip([{bit, true}, {bit, false}, {bit, true}, {bit, false}], - <<16#A0, 0>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {bit, true}, {octet, undefined}, - {bit, true}], - <<16#E8,0,123>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {octet, 123}, {bit, true}], - <<16#F0,0,123,123>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, <<"hi">>}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#F8,0,2,"hi",16#D4,16#31>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, undefined}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#B8,0,16#D4,16#31>>), - test_content_prop_roundtrip([{table, [{<<"a signedint">>, signedint, 12345678}, - {<<"a longstr">>, longstr, <<"yes please">>}, - {<<"a decimal">>, decimal, {123, 12345678}}, - {<<"a timestamp">>, timestamp, 123456789012345}, - {<<"a nested table">>, table, - [{<<"one">>, signedint, 1}, - {<<"two">>, signedint, 2}]}]}], - << - %% property-flags - 16#8000:16, - - %% property-list: - - %% table - 117:32, % table length in bytes - - 11,"a signedint", % name - "I",12345678:32, % type and value - - 9,"a longstr", - "S",10:32,"yes please", - - 9,"a decimal", - "D",123,12345678:32, - - 11,"a timestamp", - "T", 123456789012345:64, - - 14,"a nested table", - "F", - 18:32, - - 3,"one", - "I",1:32, - - 3,"two", - "I",2:32 >>), - case catch rabbit_binary_parser:parse_properties([bit, bit, bit, bit], <<16#A0,0,1>>) of - {'EXIT', content_properties_binary_overflow} -> passed; - V -> exit({got_success_but_expected_failure, V}) - end. - -test_field_values() -> - %% FIXME this does not test inexact numbers (double and float) yet, - %% because they won't pass the equality assertions - test_content_prop_roundtrip( - [{table, [{<<"longstr">>, longstr, <<"Here is a long string">>}, - {<<"signedint">>, signedint, 12345}, - {<<"decimal">>, decimal, {3, 123456}}, - {<<"timestamp">>, timestamp, 109876543209876}, - {<<"table">>, table, [{<<"one">>, signedint, 54321}, - {<<"two">>, longstr, <<"A long string">>}]}, - {<<"byte">>, byte, 255}, - {<<"long">>, long, 1234567890}, - {<<"short">>, short, 655}, - {<<"bool">>, bool, true}, - {<<"binary">>, binary, <<"a binary string">>}, - {<<"void">>, void, undefined}, - {<<"array">>, array, [{signedint, 54321}, - {longstr, <<"A long string">>}]} - - ]}], - << - %% property-flags - 16#8000:16, - %% table length in bytes - 228:32, - - 7,"longstr", "S", 21:32, "Here is a long string", % = 34 - 9,"signedint", "I", 12345:32/signed, % + 15 = 49 - 7,"decimal", "D", 3, 123456:32, % + 14 = 63 - 9,"timestamp", "T", 109876543209876:64, % + 19 = 82 - 5,"table", "F", 31:32, % length of table % + 11 = 93 - 3,"one", "I", 54321:32, % + 9 = 102 - 3,"two", "S", 13:32, "A long string", % + 22 = 124 - 4,"byte", "b", 255:8, % + 7 = 131 - 4,"long", "l", 1234567890:64, % + 14 = 145 - 5,"short", "s", 655:16, % + 9 = 154 - 4,"bool", "t", 1, % + 7 = 161 - 6,"binary", "x", 15:32, "a binary string", % + 27 = 188 - 4,"void", "V", % + 6 = 194 - 5,"array", "A", 23:32, % + 11 = 205 - "I", 54321:32, % + 5 = 210 - "S", 13:32, "A long string" % + 18 = 228 - >>), - passed. - -%% Test that content frames don't exceed frame-max -test_content_framing(FrameMax, BodyBin) -> - [Header | Frames] = - rabbit_binary_generator:build_simple_content_frames( - 1, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, BodyBin), - rabbit_framing_amqp_0_9_1), - FrameMax, - rabbit_framing_amqp_0_9_1), - %% header is formatted correctly and the size is the total of the - %% fragments - <<_FrameHeader:7/binary, _ClassAndWeight:4/binary, - BodySize:64/unsigned, _Rest/binary>> = list_to_binary(Header), - BodySize = size(BodyBin), - true = lists:all( - fun (ContentFrame) -> - FrameBinary = list_to_binary(ContentFrame), - %% assert - <<_TypeAndChannel:3/binary, - Size:32/unsigned, _Payload:Size/binary, 16#CE>> = - FrameBinary, - size(FrameBinary) =< FrameMax - end, Frames), - passed. - -test_content_framing() -> - %% no content - passed = test_content_framing(4096, <<>>), - %% easily fit in one frame - passed = test_content_framing(4096, <<"Easy">>), - %% exactly one frame (empty frame = 8 bytes) - passed = test_content_framing(11, <<"One">>), - %% more than one frame - passed = test_content_framing(11, <<"More than one frame">>), - passed. - -test_content_transcoding() -> - %% there are no guarantees provided by 'clear' - it's just a hint - ClearDecoded = fun rabbit_binary_parser:clear_decoded_content/1, - ClearEncoded = fun rabbit_binary_generator:clear_encoded_content/1, - EnsureDecoded = - fun (C0) -> - C1 = rabbit_binary_parser:ensure_content_decoded(C0), - true = C1#content.properties =/= none, - C1 - end, - EnsureEncoded = - fun (Protocol) -> - fun (C0) -> - C1 = rabbit_binary_generator:ensure_content_encoded( - C0, Protocol), - true = C1#content.properties_bin =/= none, - C1 - end - end, - %% Beyond the assertions in Ensure*, the only testable guarantee - %% is that the operations should never fail. - %% - %% If we were using quickcheck we'd simply stuff all the above - %% into a generator for sequences of operations. In the absence of - %% quickcheck we pick particularly interesting sequences that: - %% - %% - execute every op twice since they are idempotent - %% - invoke clear_decoded, clear_encoded, decode and transcode - %% with one or both of decoded and encoded content present - [begin - sequence_with_content([Op]), - sequence_with_content([ClearEncoded, Op]), - sequence_with_content([ClearDecoded, Op]) - end || Op <- [ClearDecoded, ClearEncoded, EnsureDecoded, - EnsureEncoded(rabbit_framing_amqp_0_9_1), - EnsureEncoded(rabbit_framing_amqp_0_8)]], - passed. - -sequence_with_content(Sequence) -> - lists:foldl(fun (F, V) -> F(F(V)) end, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, <<>>), - rabbit_framing_amqp_0_9_1), - Sequence). - -test_topic_matching() -> - XName = #resource{virtual_host = <<"/">>, - kind = exchange, - name = <<"test_exchange">>}, - X = #exchange{name = XName, type = topic, durable = false, - auto_delete = false, arguments = []}, - %% create - rabbit_exchange_type_topic:validate(X), - exchange_op_callback(X, create, []), - - %% add some bindings - Bindings = [#binding{source = XName, - key = list_to_binary(Key), - destination = #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)}} || - {Key, Q} <- [{"a.b.c", "t1"}, - {"a.*.c", "t2"}, - {"a.#.b", "t3"}, - {"a.b.b.c", "t4"}, - {"#", "t5"}, - {"#.#", "t6"}, - {"#.b", "t7"}, - {"*.*", "t8"}, - {"a.*", "t9"}, - {"*.b.c", "t10"}, - {"a.#", "t11"}, - {"a.#.#", "t12"}, - {"b.b.c", "t13"}, - {"a.b.b", "t14"}, - {"a.b", "t15"}, - {"b.c", "t16"}, - {"", "t17"}, - {"*.*.*", "t18"}, - {"vodka.martini", "t19"}, - {"a.b.c", "t20"}, - {"*.#", "t21"}, - {"#.*.#", "t22"}, - {"*.#.#", "t23"}, - {"#.#.#", "t24"}, - {"*", "t25"}, - {"#.b.#", "t26"}]], - lists:foreach(fun (B) -> exchange_op_callback(X, add_binding, [B]) end, - Bindings), - - %% test some matches - test_topic_expect_match( - X, [{"a.b.c", ["t1", "t2", "t5", "t6", "t10", "t11", "t12", - "t18", "t20", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b", ["t3", "t5", "t6", "t7", "t8", "t9", "t11", - "t12", "t15", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b.b", ["t3", "t5", "t6", "t7", "t11", "t12", "t14", - "t18", "t21", "t22", "t23", "t24", "t26"]}, - {"", ["t5", "t6", "t17", "t24"]}, - {"b.c.c", ["t5", "t6", "t18", "t21", "t22", "t23", - "t24", "t26"]}, - {"a.a.a.a.a", ["t5", "t6", "t11", "t12", "t21", "t22", - "t23", "t24"]}, - {"vodka.gin", ["t5", "t6", "t8", "t21", "t22", "t23", - "t24"]}, - {"vodka.martini", ["t5", "t6", "t8", "t19", "t21", "t22", "t23", - "t24"]}, - {"b.b.c", ["t5", "t6", "t10", "t13", "t18", "t21", - "t22", "t23", "t24", "t26"]}, - {"nothing.here.at.all", ["t5", "t6", "t21", "t22", "t23", "t24"]}, - {"oneword", ["t5", "t6", "t21", "t22", "t23", "t24", - "t25"]}]), - - %% remove some bindings - RemovedBindings = [lists:nth(1, Bindings), lists:nth(5, Bindings), - lists:nth(11, Bindings), lists:nth(19, Bindings), - lists:nth(21, Bindings)], - exchange_op_callback(X, remove_bindings, [RemovedBindings]), - RemainingBindings = ordsets:to_list( - ordsets:subtract(ordsets:from_list(Bindings), - ordsets:from_list(RemovedBindings))), - - %% test some matches - test_topic_expect_match( - X, - [{"a.b.c", ["t2", "t6", "t10", "t12", "t18", "t20", "t22", - "t23", "t24", "t26"]}, - {"a.b", ["t3", "t6", "t7", "t8", "t9", "t12", "t15", - "t22", "t23", "t24", "t26"]}, - {"a.b.b", ["t3", "t6", "t7", "t12", "t14", "t18", "t22", - "t23", "t24", "t26"]}, - {"", ["t6", "t17", "t24"]}, - {"b.c.c", ["t6", "t18", "t22", "t23", "t24", "t26"]}, - {"a.a.a.a.a", ["t6", "t12", "t22", "t23", "t24"]}, - {"vodka.gin", ["t6", "t8", "t22", "t23", "t24"]}, - {"vodka.martini", ["t6", "t8", "t22", "t23", "t24"]}, - {"b.b.c", ["t6", "t10", "t13", "t18", "t22", "t23", - "t24", "t26"]}, - {"nothing.here.at.all", ["t6", "t22", "t23", "t24"]}, - {"oneword", ["t6", "t22", "t23", "t24", "t25"]}]), - - %% remove the entire exchange - exchange_op_callback(X, delete, [RemainingBindings]), - %% none should match now - test_topic_expect_match(X, [{"a.b.c", []}, {"b.b.c", []}, {"", []}]), - passed. - -exchange_op_callback(X, Fun, ExtraArgs) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> rabbit_exchange:callback(X, Fun, [true, X] ++ ExtraArgs) end), - rabbit_exchange:callback(X, Fun, [false, X] ++ ExtraArgs). - -test_topic_expect_match(X, List) -> - lists:foreach( - fun ({Key, Expected}) -> - BinKey = list_to_binary(Key), - Message = rabbit_basic:message(X#exchange.name, BinKey, - #'P_basic'{}, <<>>), - Res = rabbit_exchange_type_topic:route( - X, #delivery{mandatory = false, - immediate = false, - txn = none, - sender = self(), - message = Message}), - ExpectedRes = lists:map( - fun (Q) -> #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)} - end, Expected), - true = (lists:usort(ExpectedRes) =:= lists:usort(Res)) - end, List). - -test_app_management() -> - %% starting, stopping, status - ok = control_action(stop_app, []), - ok = control_action(stop_app, []), - ok = control_action(status, []), - ok = control_action(start_app, []), - ok = control_action(start_app, []), - ok = control_action(status, []), - passed. - -test_log_management() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - Suffix = ".1", - - %% prepare basic logs - file:delete([MainLog, Suffix]), - file:delete([SaslLog, Suffix]), - - %% simple logs reopening - ok = control_action(rotate_logs, []), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% simple log rotation - ok = control_action(rotate_logs, [Suffix]), - [true, true] = non_empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% reopening logs with log rotation performed first - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = file:rename(MainLog, [MainLog, Suffix]), - ok = file:rename(SaslLog, [SaslLog, Suffix]), - ok = test_logs_working([MainLog, Suffix], [SaslLog, Suffix]), - ok = control_action(rotate_logs, []), - ok = test_logs_working(MainLog, SaslLog), - - %% log rotation on empty file - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = control_action(rotate_logs, [Suffix]), - [true, true] = empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - - %% original main log file is not writable - ok = make_files_non_writable([MainLog]), - {error, {cannot_rotate_main_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([MainLog], Suffix), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}]), - - %% original sasl log file is not writable - ok = make_files_non_writable([SaslLog]), - {error, {cannot_rotate_sasl_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([SaslLog], Suffix), - ok = add_log_handlers([{rabbit_sasl_report_file_h, SaslLog}]), - - %% logs with suffix are not writable - ok = control_action(rotate_logs, [Suffix]), - ok = make_files_non_writable([[MainLog, Suffix], [SaslLog, Suffix]]), - ok = control_action(rotate_logs, [Suffix]), - ok = test_logs_working(MainLog, SaslLog), - - %% original log files are not writable - ok = make_files_non_writable([MainLog, SaslLog]), - {error, {{cannot_rotate_main_logs, _}, - {cannot_rotate_sasl_logs, _}}} = control_action(rotate_logs, []), - - %% logging directed to tty (handlers were removed in last test) - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = application:set_env(kernel, error_logger, tty), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% rotate logs when logging is turned off - ok = application:set_env(sasl, sasl_error_logger, false), - ok = application:set_env(kernel, error_logger, silent), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% cleanup - ok = application:set_env(sasl, sasl_error_logger, {file, SaslLog}), - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}, - {rabbit_sasl_report_file_h, SaslLog}]), - passed. - -test_log_management_during_startup() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - - %% start application with simple tty logging - ok = control_action(stop_app, []), - ok = application:set_env(kernel, error_logger, tty), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = add_log_handlers([{error_logger_tty_h, []}, - {sasl_report_tty_h, []}]), - ok = control_action(start_app, []), - - %% start application with tty logging and - %% proper handlers not installed - ok = control_action(stop_app, []), - ok = error_logger:tty(false), - ok = delete_log_handlers([sasl_report_tty_h]), - ok = case catch control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_tty_no_handlers_test}); - {error, {cannot_log_to_tty, _, _}} -> ok - end, - - %% fix sasl logging - ok = application:set_env(sasl, sasl_error_logger, - {file, SaslLog}), - - %% start application with logging to non-existing directory - TmpLog = "/tmp/rabbit-tests/test.log", - delete_file(TmpLog), - ok = application:set_env(kernel, error_logger, {file, TmpLog}), - - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = control_action(start_app, []), - - %% start application with logging to directory with no - %% write permissions - TmpDir = "/tmp/rabbit-tests", - ok = set_permissions(TmpDir, 8#00400), - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_no_write_permission_dir_test}); - {error, {cannot_log_to_file, _, _}} -> ok - end, - - %% start application with logging to a subdirectory which - %% parent directory has no write permissions - TmpTestDir = "/tmp/rabbit-tests/no-permission/test/log", - ok = application:set_env(kernel, error_logger, {file, TmpTestDir}), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotatation_parent_dirs_test}); - {error, {cannot_log_to_file, _, - {error, {cannot_create_parent_dirs, _, eacces}}}} -> ok - end, - ok = set_permissions(TmpDir, 8#00700), - ok = set_permissions(TmpLog, 8#00600), - ok = delete_file(TmpLog), - ok = file:del_dir(TmpDir), - - %% start application with standard error_logger_file_h - %% handler not installed - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% start application with standard sasl handler not installed - %% and rabbit main log handler installed correctly - ok = delete_log_handlers([rabbit_sasl_report_file_h]), - ok = control_action(start_app, []), - passed. - -test_option_parser() -> - %% command and arguments should just pass through - ok = check_get_options({["mock_command", "arg1", "arg2"], []}, - [], ["mock_command", "arg1", "arg2"]), - - %% get flags - ok = check_get_options( - {["mock_command", "arg1"], [{"-f", true}, {"-f2", false}]}, - [{flag, "-f"}, {flag, "-f2"}], ["mock_command", "arg1", "-f"]), - - %% get options - ok = check_get_options( - {["mock_command"], [{"-foo", "bar"}, {"-baz", "notbaz"}]}, - [{option, "-foo", "notfoo"}, {option, "-baz", "notbaz"}], - ["mock_command", "-foo", "bar"]), - - %% shuffled and interleaved arguments and options - ok = check_get_options( - {["a1", "a2", "a3"], [{"-o1", "hello"}, {"-o2", "noto2"}, {"-f", true}]}, - [{option, "-o1", "noto1"}, {flag, "-f"}, {option, "-o2", "noto2"}], - ["-f", "a1", "-o1", "hello", "a2", "a3"]), - - passed. - -test_cluster_management() -> - - %% 'cluster' and 'reset' should only work if the app is stopped - {error, _} = control_action(cluster, []), - {error, _} = control_action(reset, []), - {error, _} = control_action(force_reset, []), - - ok = control_action(stop_app, []), - - %% various ways of creating a standalone node - NodeS = atom_to_list(node()), - ClusteringSequence = [[], - [NodeS], - ["invalid@invalid", NodeS], - [NodeS, "invalid@invalid"]], - - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - - %% convert a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% join a non-existing cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - SecondaryNode = rabbit_misc:makenode("hare"), - case net_adm:ping(SecondaryNode) of - pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", - [SecondaryNode]) - end, - - ok = control_action(start_app, []), - passed. - -test_cluster_management2(SecondaryNode) -> - NodeS = atom_to_list(node()), - SecondaryNodeS = atom_to_list(SecondaryNode), - - %% make a disk node - ok = control_action(reset, []), - ok = control_action(cluster, [NodeS]), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - - %% join cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, [SecondaryNodeS, "invalid1@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% change cluster config while remaining in same cluster - ok = control_action(force_cluster, ["invalid2@invalid", SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join non-existing cluster as a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join empty cluster as a ram node - ok = control_action(cluster, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% turn ram node into disk node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% convert a disk node into a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - - %% turn a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% NB: this will log an inconsistent_database error, which is harmless - %% Turning cover on / off is OK even if we're not in general using cover, - %% it just turns the engine on / off, doesn't actually log anything. - cover:stop([SecondaryNode]), - true = disconnect_node(SecondaryNode), - pong = net_adm:ping(SecondaryNode), - cover:start([SecondaryNode]), - - %% leaving a cluster as a ram node - ok = control_action(reset, []), - %% ...and as a disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(reset, []), - - %% attempt to leave cluster when no other node is alive - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, SecondaryNode, [], []), - ok = control_action(stop_app, []), - {error, {no_running_cluster_nodes, _, _}} = - control_action(reset, []), - - %% leave system clustered, with the secondary node as a ram node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(force_reset, SecondaryNode, [], []), - ok = control_action(cluster, SecondaryNode, [NodeS], []), - ok = control_action(start_app, SecondaryNode, [], []), - - passed. - -test_user_management() -> - - %% lots if stuff that should fail - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(change_password, ["foo", "baz"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - {error, {no_such_user, _}} = - control_action(set_permissions, ["foo", ".*", ".*", ".*"]), - {error, {no_such_user, _}} = - control_action(clear_permissions, ["foo"]), - {error, {no_such_user, _}} = - control_action(list_user_permissions, ["foo"]), - {error, {no_such_vhost, _}} = - control_action(list_permissions, [], [{"-p", "/testhost"}]), - {error, {invalid_regexp, _, _}} = - control_action(set_permissions, ["guest", "+foo", ".*", ".*"]), - - %% user creation - ok = control_action(add_user, ["foo", "bar"]), - {error, {user_already_exists, _}} = - control_action(add_user, ["foo", "bar"]), - ok = control_action(change_password, ["foo", "baz"]), - ok = control_action(set_admin, ["foo"]), - ok = control_action(clear_admin, ["foo"]), - ok = control_action(list_users, []), - - %% vhost creation - ok = control_action(add_vhost, ["/testhost"]), - {error, {vhost_already_exists, _}} = - control_action(add_vhost, ["/testhost"]), - ok = control_action(list_vhosts, []), - - %% user/vhost mapping - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_user_permissions, ["foo"]), - - %% user/vhost unmapping - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - - %% vhost deletion - ok = control_action(delete_vhost, ["/testhost"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - - %% deleting a populated vhost - ok = control_action(add_vhost, ["/testhost"]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(delete_vhost, ["/testhost"]), - - %% user deletion - ok = control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - - passed. - -test_server_status() -> - %% create a few things so there is some useful information to list - Writer = spawn(fun () -> receive shutdown -> ok end end), - {ok, Ch} = rabbit_channel:start_link( - 1, self(), Writer, self(), rabbit_framing_amqp_0_9_1, - user(<<"user">>), <<"/">>, [], self(), - fun (_) -> {ok, self()} end), - [Q, Q2] = [Queue || Name <- [<<"foo">>, <<"bar">>], - {new, Queue = #amqqueue{}} <- - [rabbit_amqqueue:declare( - rabbit_misc:r(<<"/">>, queue, Name), - false, false, [], none)]], - - ok = rabbit_amqqueue:basic_consume(Q, true, Ch, undefined, - <<"ctag">>, true, undefined), - - %% list queues - ok = info_action(list_queues, rabbit_amqqueue:info_keys(), true), - - %% list exchanges - ok = info_action(list_exchanges, rabbit_exchange:info_keys(), true), - - %% list bindings - ok = info_action(list_bindings, rabbit_binding:info_keys(), true), - %% misc binding listing APIs - [_|_] = rabbit_binding:list_for_source( - rabbit_misc:r(<<"/">>, exchange, <<"">>)), - [_] = rabbit_binding:list_for_destination( - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - [_] = rabbit_binding:list_for_source_and_destination( - rabbit_misc:r(<<"/">>, exchange, <<"">>), - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - - %% list connections - [#listener{host = H, port = P} | _] = - [L || L = #listener{node = N} <- rabbit_networking:active_listeners(), - N =:= node()], - - {ok, _C} = gen_tcp:connect(H, P, []), - timer:sleep(100), - ok = info_action(list_connections, - rabbit_networking:connection_info_keys(), false), - %% close_connection - [ConnPid] = rabbit_networking:connections(), - ok = control_action(close_connection, [rabbit_misc:pid_to_string(ConnPid), - "go away"]), - - %% list channels - ok = info_action(list_channels, rabbit_channel:info_keys(), false), - - %% list consumers - ok = control_action(list_consumers, []), - - %% cleanup - [{ok, _} = rabbit_amqqueue:delete(QR, false, false) || QR <- [Q, Q2]], - - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_writer(Pid) -> - receive - shutdown -> ok; - {send_command, Method} -> Pid ! Method, test_writer(Pid) - end. - -test_spawn() -> - Me = self(), - Writer = spawn(fun () -> test_writer(Me) end), - {ok, Ch} = rabbit_channel:start_link( - 1, Me, Writer, Me, rabbit_framing_amqp_0_9_1, - user(<<"guest">>), <<"/">>, [], self(), - fun (_) -> {ok, self()} end), - ok = rabbit_channel:do(Ch, #'channel.open'{}), - receive #'channel.open_ok'{} -> ok - after 1000 -> throw(failed_to_receive_channel_open_ok) - end, - {Writer, Ch}. - -user(Username) -> - #user{username = Username, - is_admin = true, - auth_backend = rabbit_auth_backend_internal, - impl = #internal_user{username = Username, - is_admin = true}}. - -test_statistics_event_receiver(Pid) -> - receive - Foo -> Pid ! Foo, test_statistics_event_receiver(Pid) - end. - -test_statistics_receive_event(Ch, Matcher) -> - rabbit_channel:flush(Ch), - rabbit_channel:emit_stats(Ch), - test_statistics_receive_event1(Ch, Matcher). - -test_statistics_receive_event1(Ch, Matcher) -> - receive #event{type = channel_stats, props = Props} -> - case Matcher(Props) of - true -> Props; - _ -> test_statistics_receive_event1(Ch, Matcher) - end - after 1000 -> throw(failed_to_receive_event) - end. - -test_confirms() -> - {_Writer, Ch} = test_spawn(), - DeclareBindDurableQueue = - fun() -> - rabbit_channel:do(Ch, #'queue.declare'{durable = true}), - receive #'queue.declare_ok'{queue = Q0} -> - rabbit_channel:do(Ch, #'queue.bind'{ - queue = Q0, - exchange = <<"amq.direct">>, - routing_key = "magic" }), - receive #'queue.bind_ok'{} -> - Q0 - after 1000 -> - throw(failed_to_bind_queue) - end - after 1000 -> - throw(failed_to_declare_queue) - end - end, - %% Declare and bind two queues - QName1 = DeclareBindDurableQueue(), - QName2 = DeclareBindDurableQueue(), - %% Get the first one's pid (we'll crash it later) - {ok, Q1} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName1)), - QPid1 = Q1#amqqueue.pid, - %% Enable confirms - rabbit_channel:do(Ch, #'confirm.select'{}), - receive - #'confirm.select_ok'{} -> ok - after 1000 -> throw(failed_to_enable_confirms) - end, - %% Publish a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"amq.direct">>, - routing_key = "magic" - }, - rabbit_basic:build_content( - #'P_basic'{delivery_mode = 2}, <<"">>)), - %% Crash the queue - QPid1 ! boom, - %% Wait for a nack - receive - #'basic.nack'{} -> ok; - #'basic.ack'{} -> throw(received_ack_instead_of_nack) - after 2000 -> throw(did_not_receive_nack) - end, - receive - #'basic.ack'{} -> throw(received_ack_when_none_expected) - after 1000 -> ok - end, - %% Cleanup - rabbit_channel:do(Ch, #'queue.delete'{queue = QName2}), - receive - #'queue.delete_ok'{} -> ok - after 1000 -> throw(failed_to_cleanup_queue) - end, - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_statistics() -> - application:set_env(rabbit, collect_statistics, fine), - - %% ATM this just tests the queue / exchange stats in channels. That's - %% by far the most complex code though. - - %% Set up a channel and queue - {_Writer, Ch} = test_spawn(), - rabbit_channel:do(Ch, #'queue.declare'{}), - QName = receive #'queue.declare_ok'{queue = Q0} -> - Q0 - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - {ok, Q} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName)), - QPid = Q#amqqueue.pid, - X = rabbit_misc:r(<<"/">>, exchange, <<"">>), - - rabbit_tests_event_receiver:start(self()), - - %% Check stats empty - Event = test_statistics_receive_event(Ch, fun (_) -> true end), - [] = proplists:get_value(channel_queue_stats, Event), - [] = proplists:get_value(channel_exchange_stats, Event), - [] = proplists:get_value(channel_queue_exchange_stats, Event), - - %% Publish and get a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"">>, - routing_key = QName}, - rabbit_basic:build_content(#'P_basic'{}, <<"">>)), - rabbit_channel:do(Ch, #'basic.get'{queue = QName}), - - %% Check the stats reflect that - Event2 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) > 0 - end), - [{QPid,[{get,1}]}] = proplists:get_value(channel_queue_stats, Event2), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event2), - [{{QPid,X},[{publish,1}]}] = - proplists:get_value(channel_queue_exchange_stats, Event2), - - %% Check the stats remove stuff on queue deletion - rabbit_channel:do(Ch, #'queue.delete'{queue = QName}), - Event3 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) == 0 - end), - - [] = proplists:get_value(channel_queue_stats, Event3), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event3), - [] = proplists:get_value(channel_queue_exchange_stats, Event3), - - rabbit_channel:shutdown(Ch), - rabbit_tests_event_receiver:stop(), - passed. - -test_delegates_async(SecondaryNode) -> - Self = self(), - Sender = fun (Pid) -> Pid ! {invoked, Self} end, - - Responder = make_responder(fun ({invoked, Pid}) -> Pid ! response end), - - ok = delegate:invoke_no_result(spawn(Responder), Sender), - ok = delegate:invoke_no_result(spawn(SecondaryNode, Responder), Sender), - await_response(2), - - LocalPids = spawn_responders(node(), Responder, 10), - RemotePids = spawn_responders(SecondaryNode, Responder, 10), - ok = delegate:invoke_no_result(LocalPids ++ RemotePids, Sender), - await_response(20), - - passed. - -make_responder(FMsg) -> make_responder(FMsg, timeout). -make_responder(FMsg, Throw) -> - fun () -> - receive Msg -> FMsg(Msg) - after 1000 -> throw(Throw) - end - end. - -spawn_responders(Node, Responder, Count) -> - [spawn(Node, Responder) || _ <- lists:seq(1, Count)]. - -await_response(0) -> - ok; -await_response(Count) -> - receive - response -> ok, - await_response(Count - 1) - after 1000 -> - io:format("Async reply not received~n"), - throw(timeout) - end. - -must_exit(Fun) -> - try - Fun(), - throw(exit_not_thrown) - catch - exit:_ -> ok - end. - -test_delegates_sync(SecondaryNode) -> - Sender = fun (Pid) -> gen_server:call(Pid, invoked, infinity) end, - BadSender = fun (_Pid) -> exit(exception) end, - - Responder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end), - - BadResponder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end, bad_responder_died), - - response = delegate:invoke(spawn(Responder), Sender), - response = delegate:invoke(spawn(SecondaryNode, Responder), Sender), - - must_exit(fun () -> delegate:invoke(spawn(BadResponder), BadSender) end), - must_exit(fun () -> - delegate:invoke(spawn(SecondaryNode, BadResponder), BadSender) end), - - LocalGoodPids = spawn_responders(node(), Responder, 2), - RemoteGoodPids = spawn_responders(SecondaryNode, Responder, 2), - LocalBadPids = spawn_responders(node(), BadResponder, 2), - RemoteBadPids = spawn_responders(SecondaryNode, BadResponder, 2), - - {GoodRes, []} = delegate:invoke(LocalGoodPids ++ RemoteGoodPids, Sender), - true = lists:all(fun ({_, response}) -> true end, GoodRes), - GoodResPids = [Pid || {Pid, _} <- GoodRes], - - Good = lists:usort(LocalGoodPids ++ RemoteGoodPids), - Good = lists:usort(GoodResPids), - - {[], BadRes} = delegate:invoke(LocalBadPids ++ RemoteBadPids, BadSender), - true = lists:all(fun ({_, {exit, exception, _}}) -> true end, BadRes), - BadResPids = [Pid || {Pid, _} <- BadRes], - - Bad = lists:usort(LocalBadPids ++ RemoteBadPids), - Bad = lists:usort(BadResPids), - - MagicalPids = [rabbit_misc:string_to_pid(Str) || - Str <- ["", ""]], - {[], BadNodes} = delegate:invoke(MagicalPids, Sender), - true = lists:all( - fun ({_, {exit, {nodedown, nonode@nohost}, _Stack}}) -> true end, - BadNodes), - BadNodesPids = [Pid || {Pid, _} <- BadNodes], - - Magical = lists:usort(MagicalPids), - Magical = lists:usort(BadNodesPids), - - passed. - -test_queue_cleanup(_SecondaryNode) -> - {_Writer, Ch} = test_spawn(), - rabbit_channel:do(Ch, #'queue.declare'{ queue = ?CLEANUP_QUEUE_NAME }), - receive #'queue.declare_ok'{queue = ?CLEANUP_QUEUE_NAME} -> - ok - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - rabbit:stop(), - rabbit:start(), - rabbit_channel:do(Ch, #'queue.declare'{ passive = true, - queue = ?CLEANUP_QUEUE_NAME }), - receive - #'channel.close'{reply_code = ?NOT_FOUND} -> - ok - after 2000 -> - throw(failed_to_receive_channel_exit) - end, - passed. - -test_declare_on_dead_queue(SecondaryNode) -> - QueueName = rabbit_misc:r(<<"/">>, queue, ?CLEANUP_QUEUE_NAME), - Self = self(), - Pid = spawn(SecondaryNode, - fun () -> - {new, #amqqueue{name = QueueName, pid = QPid}} = - rabbit_amqqueue:declare(QueueName, false, false, [], - none), - exit(QPid, kill), - Self ! {self(), killed, QPid} - end), - receive - {Pid, killed, QPid} -> - {existing, #amqqueue{name = QueueName, - pid = QPid}} = - rabbit_amqqueue:declare(QueueName, false, false, [], none), - false = rabbit_misc:is_process_alive(QPid), - {new, Q} = rabbit_amqqueue:declare(QueueName, false, false, [], - none), - true = rabbit_misc:is_process_alive(Q#amqqueue.pid), - {ok, 0} = rabbit_amqqueue:delete(Q, false, false), - passed - after 2000 -> - throw(failed_to_create_and_kill_queue) - end. - -%%--------------------------------------------------------------------- - -control_action(Command, Args) -> - control_action(Command, node(), Args, default_options()). - -control_action(Command, Args, NewOpts) -> - control_action(Command, node(), Args, - expand_options(default_options(), NewOpts)). - -control_action(Command, Node, Args, Opts) -> - case catch rabbit_control:action( - Command, Node, Args, Opts, - fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end) of - ok -> - io:format("done.~n"), - ok; - Other -> - io:format("failed.~n"), - Other - end. - -info_action(Command, Args, CheckVHost) -> - ok = control_action(Command, []), - if CheckVHost -> ok = control_action(Command, []); - true -> ok - end, - ok = control_action(Command, lists:map(fun atom_to_list/1, Args)), - {bad_argument, dummy} = control_action(Command, ["dummy"]), - ok. - -default_options() -> [{"-p", "/"}, {"-q", "false"}]. - -expand_options(As, Bs) -> - lists:foldl(fun({K, _}=A, R) -> - case proplists:is_defined(K, R) of - true -> R; - false -> [A | R] - end - end, Bs, As). - -check_get_options({ExpArgs, ExpOpts}, Defs, Args) -> - {ExpArgs, ResOpts} = rabbit_misc:get_options(Defs, Args), - true = lists:sort(ExpOpts) == lists:sort(ResOpts), % don't care about the order - ok. - -empty_files(Files) -> - [case file:read_file_info(File) of - {ok, FInfo} -> FInfo#file_info.size == 0; - Error -> Error - end || File <- Files]. - -non_empty_files(Files) -> - [case EmptyFile of - {error, Reason} -> {error, Reason}; - _ -> not(EmptyFile) - end || EmptyFile <- empty_files(Files)]. - -test_logs_working(MainLogFile, SaslLogFile) -> - ok = rabbit_log:error("foo bar"), - ok = error_logger:error_report(crash_report, [foo, bar]), - %% give the error loggers some time to catch up - timer:sleep(50), - [true, true] = non_empty_files([MainLogFile, SaslLogFile]), - ok. - -set_permissions(Path, Mode) -> - case file:read_file_info(Path) of - {ok, FInfo} -> file:write_file_info( - Path, - FInfo#file_info{mode=Mode}); - Error -> Error - end. - -clean_logs(Files, Suffix) -> - [begin - ok = delete_file(File), - ok = delete_file([File, Suffix]) - end || File <- Files], - ok. - -delete_file(File) -> - case file:delete(File) of - ok -> ok; - {error, enoent} -> ok; - Error -> Error - end. - -make_files_non_writable(Files) -> - [ok = file:write_file_info(File, #file_info{mode=0}) || - File <- Files], - ok. - -add_log_handlers(Handlers) -> - [ok = error_logger:add_report_handler(Handler, Args) || - {Handler, Args} <- Handlers], - ok. - -delete_log_handlers(Handlers) -> - [[] = error_logger:delete_report_handler(Handler) || - Handler <- Handlers], - ok. - -test_supervisor_delayed_restart() -> - test_sup:test_supervisor_delayed_restart(). - -test_file_handle_cache() -> - %% test copying when there is just one spare handle - Limit = file_handle_cache:get_limit(), - ok = file_handle_cache:set_limit(5), %% 1 or 2 sockets, 2 msg_stores - TmpDir = filename:join(rabbit_mnesia:dir(), "tmp"), - ok = filelib:ensure_dir(filename:join(TmpDir, "nothing")), - [Src1, Dst1, Src2, Dst2] = Files = - [filename:join(TmpDir, Str) || Str <- ["file1", "file2", "file3", "file4"]], - Content = <<"foo">>, - CopyFun = fun (Src, Dst) -> - ok = file:write_file(Src, Content), - {ok, SrcHdl} = file_handle_cache:open(Src, [read], []), - {ok, DstHdl} = file_handle_cache:open(Dst, [write], []), - Size = size(Content), - {ok, Size} = file_handle_cache:copy(SrcHdl, DstHdl, Size), - ok = file_handle_cache:delete(SrcHdl), - ok = file_handle_cache:delete(DstHdl) - end, - Pid = spawn(fun () -> {ok, Hdl} = file_handle_cache:open( - filename:join(TmpDir, "file5"), - [write], []), - receive {next, Pid1} -> Pid1 ! {next, self()} end, - file_handle_cache:delete(Hdl), - %% This will block and never return, so we - %% exercise the fhc tidying up the pending - %% queue on the death of a process. - ok = CopyFun(Src1, Dst1) - end), - ok = CopyFun(Src1, Dst1), - ok = file_handle_cache:set_limit(2), - Pid ! {next, self()}, - receive {next, Pid} -> ok end, - timer:sleep(100), - Pid1 = spawn(fun () -> CopyFun(Src2, Dst2) end), - timer:sleep(100), - erlang:monitor(process, Pid), - erlang:monitor(process, Pid1), - exit(Pid, kill), - exit(Pid1, kill), - receive {'DOWN', _MRef, process, Pid, _Reason} -> ok end, - receive {'DOWN', _MRef1, process, Pid1, _Reason1} -> ok end, - [file:delete(File) || File <- Files], - ok = file_handle_cache:set_limit(Limit), - passed. - -test_backing_queue() -> - case application:get_env(rabbit, backing_queue_module) of - {ok, rabbit_variable_queue} -> - {ok, FileSizeLimit} = - application:get_env(rabbit, msg_store_file_size_limit), - application:set_env(rabbit, msg_store_file_size_limit, 512, - infinity), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - application:set_env(rabbit, queue_index_max_journal_entries, 128, - infinity), - passed = test_msg_store(), - application:set_env(rabbit, msg_store_file_size_limit, - FileSizeLimit, infinity), - passed = test_queue_index(), - passed = test_queue_index_props(), - passed = test_variable_queue(), - passed = test_variable_queue_delete_msg_store_files_callback(), - passed = test_queue_recover(), - application:set_env(rabbit, queue_index_max_journal_entries, - MaxJournal, infinity), - passed; - _ -> - passed - end. - -restart_msg_store_empty() -> - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - undefined, {fun (ok) -> finished end, ok}). - -msg_id_bin(X) -> - erlang:md5(term_to_binary(X)). - -msg_store_client_init(MsgStore, Ref) -> - rabbit_msg_store:client_init(MsgStore, Ref, undefined, undefined). - -msg_store_contains(Atom, MsgIds, MSCState) -> - Atom = lists:foldl( - fun (MsgId, Atom1) when Atom1 =:= Atom -> - rabbit_msg_store:contains(MsgId, MSCState) end, - Atom, MsgIds). - -msg_store_sync(MsgIds, MSCState) -> - Ref = make_ref(), - Self = self(), - ok = rabbit_msg_store:sync(MsgIds, fun () -> Self ! {sync, Ref} end, - MSCState), - receive - {sync, Ref} -> ok - after - 10000 -> - io:format("Sync from msg_store missing for msg_ids ~p~n", [MsgIds]), - throw(timeout) - end. - -msg_store_read(MsgIds, MSCState) -> - lists:foldl(fun (MsgId, MSCStateM) -> - {{ok, MsgId}, MSCStateN} = rabbit_msg_store:read( - MsgId, MSCStateM), - MSCStateN - end, MSCState, MsgIds). - -msg_store_write(MsgIds, MSCState) -> - ok = lists:foldl(fun (MsgId, ok) -> - rabbit_msg_store:write(MsgId, MsgId, MSCState) - end, ok, MsgIds). - -msg_store_remove(MsgIds, MSCState) -> - rabbit_msg_store:remove(MsgIds, MSCState). - -msg_store_remove(MsgStore, Ref, MsgIds) -> - with_msg_store_client(MsgStore, Ref, - fun (MSCStateM) -> - ok = msg_store_remove(MsgIds, MSCStateM), - MSCStateM - end). - -with_msg_store_client(MsgStore, Ref, Fun) -> - rabbit_msg_store:client_terminate( - Fun(msg_store_client_init(MsgStore, Ref))). - -foreach_with_msg_store_client(MsgStore, Ref, Fun, L) -> - rabbit_msg_store:client_terminate( - lists:foldl(fun (MsgId, MSCState) -> Fun(MsgId, MSCState) end, - msg_store_client_init(MsgStore, Ref), L)). - -test_msg_store() -> - restart_msg_store_empty(), - Self = self(), - MsgIds = [msg_id_bin(M) || M <- lists:seq(1,100)], - {MsgIds1stHalf, MsgIds2ndHalf} = lists:split(50, MsgIds), - Ref = rabbit_guid:guid(), - MSCState = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs we're about to publish - false = msg_store_contains(false, MsgIds, MSCState), - %% publish the first half - ok = msg_store_write(MsgIds1stHalf, MSCState), - %% sync on the first half - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% publish the second half - ok = msg_store_write(MsgIds2ndHalf, MSCState), - %% sync on the first half again - the msg_store will be dirty, but - %% we won't need the fsync - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% check they're all in there - true = msg_store_contains(true, MsgIds, MSCState), - %% publish the latter half twice so we hit the caching and ref count code - ok = msg_store_write(MsgIds2ndHalf, MSCState), - %% check they're still all in there - true = msg_store_contains(true, MsgIds, MSCState), - %% sync on the 2nd half, but do lots of individual syncs to try - %% and cause coalescing to happen - ok = lists:foldl( - fun (MsgId, ok) -> rabbit_msg_store:sync( - [MsgId], fun () -> Self ! {sync, MsgId} end, - MSCState) - end, ok, MsgIds2ndHalf), - lists:foldl( - fun(MsgId, ok) -> - receive - {sync, MsgId} -> ok - after - 10000 -> - io:format("Sync from msg_store missing (msg_id: ~p)~n", - [MsgId]), - throw(timeout) - end - end, ok, MsgIds2ndHalf), - %% it's very likely we're not dirty here, so the 1st half sync - %% should hit a different code path - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% read them all - MSCState1 = msg_store_read(MsgIds, MSCState), - %% read them all again - this will hit the cache, not disk - MSCState2 = msg_store_read(MsgIds, MSCState1), - %% remove them all - ok = rabbit_msg_store:remove(MsgIds, MSCState2), - %% check first half doesn't exist - false = msg_store_contains(false, MsgIds1stHalf, MSCState2), - %% check second half does exist - true = msg_store_contains(true, MsgIds2ndHalf, MSCState2), - %% read the second half again - MSCState3 = msg_store_read(MsgIds2ndHalf, MSCState2), - %% read the second half again, just for fun (aka code coverage) - MSCState4 = msg_store_read(MsgIds2ndHalf, MSCState3), - ok = rabbit_msg_store:client_terminate(MSCState4), - %% stop and restart, preserving every other msg in 2nd half - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - [], {fun ([]) -> finished; - ([MsgId|MsgIdsTail]) - when length(MsgIdsTail) rem 2 == 0 -> - {MsgId, 1, MsgIdsTail}; - ([MsgId|MsgIdsTail]) -> - {MsgId, 0, MsgIdsTail} - end, MsgIds2ndHalf}), - MSCState5 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we have the right msgs left - lists:foldl( - fun (MsgId, Bool) -> - not(Bool = rabbit_msg_store:contains(MsgId, MSCState5)) - end, false, MsgIds2ndHalf), - ok = rabbit_msg_store:client_terminate(MSCState5), - %% restart empty - restart_msg_store_empty(), - MSCState6 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs - false = msg_store_contains(false, MsgIds, MSCState6), - %% publish the first half again - ok = msg_store_write(MsgIds1stHalf, MSCState6), - %% this should force some sort of sync internally otherwise misread - ok = rabbit_msg_store:client_terminate( - msg_store_read(MsgIds1stHalf, MSCState6)), - MSCState7 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - ok = rabbit_msg_store:remove(MsgIds1stHalf, MSCState7), - ok = rabbit_msg_store:client_terminate(MSCState7), - %% restart empty - restart_msg_store_empty(), %% now safe to reuse msg_ids - %% push a lot of msgs in... at least 100 files worth - {ok, FileSize} = application:get_env(rabbit, msg_store_file_size_limit), - PayloadSizeBits = 65536, - BigCount = trunc(100 * FileSize / (PayloadSizeBits div 8)), - MsgIdsBig = [msg_id_bin(X) || X <- lists:seq(1, BigCount)], - Payload = << 0:PayloadSizeBits >>, - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - [ok = rabbit_msg_store:write(MsgId, Payload, MSCStateM) || - MsgId <- MsgIdsBig], - MSCStateM - end), - %% now read them to ensure we hit the fast client-side reading - ok = foreach_with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MsgId, MSCStateM) -> - {{ok, Payload}, MSCStateN} = rabbit_msg_store:read( - MsgId, MSCStateM), - MSCStateN - end, MsgIdsBig), - %% .., then 3s by 1... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount, 1, -3)]), - %% .., then remove 3s by 2, from the young end first. This hits - %% GC (under 50% good data left, but no empty files. Must GC). - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount-1, 1, -3)]), - %% .., then remove 3s by 3, from the young end first. This hits - %% GC... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount-2, 1, -3)]), - %% ensure empty - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - false = msg_store_contains(false, MsgIdsBig, MSCStateM), - MSCStateM - end), - %% restart empty - restart_msg_store_empty(), - passed. - -queue_name(Name) -> - rabbit_misc:r(<<"/">>, queue, Name). - -test_queue() -> - queue_name(<<"test">>). - -init_test_queue() -> - TestQueue = test_queue(), - Terms = rabbit_queue_index:shutdown_terms(TestQueue), - PRef = proplists:get_value(persistent_ref, Terms, rabbit_guid:guid()), - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef), - Res = rabbit_queue_index:recover( - TestQueue, Terms, false, - fun (MsgId) -> - rabbit_msg_store:contains(MsgId, PersistentClient) - end, - fun nop/1), - ok = rabbit_msg_store:client_delete_and_terminate(PersistentClient), - Res. - -restart_test_queue(Qi) -> - _ = rabbit_queue_index:terminate([], Qi), - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([test_queue()]), - init_test_queue(). - -empty_test_queue() -> - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - {0, Qi} = init_test_queue(), - _ = rabbit_queue_index:delete_and_terminate(Qi), - ok. - -with_empty_test_queue(Fun) -> - ok = empty_test_queue(), - {0, Qi} = init_test_queue(), - rabbit_queue_index:delete_and_terminate(Fun(Qi)). - -queue_index_publish(SeqIds, Persistent, Qi) -> - Ref = rabbit_guid:guid(), - MsgStore = case Persistent of - true -> ?PERSISTENT_MSG_STORE; - false -> ?TRANSIENT_MSG_STORE - end, - MSCState = msg_store_client_init(MsgStore, Ref), - {A, B = [{_SeqId, LastMsgIdWritten} | _]} = - lists:foldl( - fun (SeqId, {QiN, SeqIdsMsgIdsAcc}) -> - MsgId = rabbit_guid:guid(), - QiM = rabbit_queue_index:publish( - MsgId, SeqId, #message_properties{}, Persistent, QiN), - ok = rabbit_msg_store:write(MsgId, MsgId, MSCState), - {QiM, [{SeqId, MsgId} | SeqIdsMsgIdsAcc]} - end, {Qi, []}, SeqIds), - %% do this just to force all of the publishes through to the msg_store: - true = rabbit_msg_store:contains(LastMsgIdWritten, MSCState), - ok = rabbit_msg_store:client_delete_and_terminate(MSCState), - {A, B}. - -verify_read_with_published(_Delivered, _Persistent, [], _) -> - ok; -verify_read_with_published(Delivered, Persistent, - [{MsgId, SeqId, _Props, Persistent, Delivered}|Read], - [{SeqId, MsgId}|Published]) -> - verify_read_with_published(Delivered, Persistent, Read, Published); -verify_read_with_published(_Delivered, _Persistent, _Read, _Published) -> - ko. - -test_queue_index_props() -> - with_empty_test_queue( - fun(Qi0) -> - MsgId = rabbit_guid:guid(), - Props = #message_properties{expiry=12345}, - Qi1 = rabbit_queue_index:publish(MsgId, 1, Props, true, Qi0), - {[{MsgId, 1, Props, _, _}], Qi2} = - rabbit_queue_index:read(1, 2, Qi1), - Qi2 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -test_queue_index() -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - TwoSegs = SegmentSize + SegmentSize, - MostOfASegment = trunc(SegmentSize*0.75), - SeqIdsA = lists:seq(0, MostOfASegment-1), - SeqIdsB = lists:seq(MostOfASegment, 2*MostOfASegment), - SeqIdsC = lists:seq(0, trunc(SegmentSize/2)), - SeqIdsD = lists:seq(0, SegmentSize*4), - - with_empty_test_queue( - fun (Qi0) -> - {0, 0, Qi1} = rabbit_queue_index:bounds(Qi0), - {Qi2, SeqIdsMsgIdsA} = queue_index_publish(SeqIdsA, false, Qi1), - {0, SegmentSize, Qi3} = rabbit_queue_index:bounds(Qi2), - {ReadA, Qi4} = rabbit_queue_index:read(0, SegmentSize, Qi3), - ok = verify_read_with_published(false, false, ReadA, - lists:reverse(SeqIdsMsgIdsA)), - %% should get length back as 0, as all the msgs were transient - {0, Qi6} = restart_test_queue(Qi4), - {0, 0, Qi7} = rabbit_queue_index:bounds(Qi6), - {Qi8, SeqIdsMsgIdsB} = queue_index_publish(SeqIdsB, true, Qi7), - {0, TwoSegs, Qi9} = rabbit_queue_index:bounds(Qi8), - {ReadB, Qi10} = rabbit_queue_index:read(0, SegmentSize, Qi9), - ok = verify_read_with_published(false, true, ReadB, - lists:reverse(SeqIdsMsgIdsB)), - %% should get length back as MostOfASegment - LenB = length(SeqIdsB), - {LenB, Qi12} = restart_test_queue(Qi10), - {0, TwoSegs, Qi13} = rabbit_queue_index:bounds(Qi12), - Qi14 = rabbit_queue_index:deliver(SeqIdsB, Qi13), - {ReadC, Qi15} = rabbit_queue_index:read(0, SegmentSize, Qi14), - ok = verify_read_with_published(true, true, ReadC, - lists:reverse(SeqIdsMsgIdsB)), - Qi16 = rabbit_queue_index:ack(SeqIdsB, Qi15), - Qi17 = rabbit_queue_index:flush(Qi16), - %% Everything will have gone now because #pubs == #acks - {0, 0, Qi18} = rabbit_queue_index:bounds(Qi17), - %% should get length back as 0 because all persistent - %% msgs have been acked - {0, Qi19} = restart_test_queue(Qi18), - Qi19 - end), - - %% These next bits are just to hit the auto deletion of segment files. - %% First, partials: - %% a) partial pub+del+ack, then move to new segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsC} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsC, Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, _SeqIdsMsgIdsC1} = queue_index_publish([SegmentSize], - false, Qi4), - Qi5 - end), - - %% b) partial pub+del, then move to new segment, then ack all in old segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsC2} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - {Qi3, _SeqIdsMsgIdsC3} = queue_index_publish([SegmentSize], - false, Qi2), - Qi4 = rabbit_queue_index:ack(SeqIdsC, Qi3), - rabbit_queue_index:flush(Qi4) - end), - - %% c) just fill up several segments of all pubs, then +dels, then +acks - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsD} = queue_index_publish(SeqIdsD, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsD, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsD, Qi2), - rabbit_queue_index:flush(Qi3) - end), - - %% d) get messages in all states to a segment, then flush, then do - %% the same again, don't flush and read. This will hit all - %% possibilities in combining the segment with the journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, [Seven,Five,Four|_]} = queue_index_publish([0,1,2,4,5,7], - false, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, [Eight,Six|_]} = queue_index_publish([3,6,8], false, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {[], Qi8} = rabbit_queue_index:read(0, 4, Qi7), - {ReadD, Qi9} = rabbit_queue_index:read(4, 7, Qi8), - ok = verify_read_with_published(true, false, ReadD, - [Four, Five, Six]), - {ReadE, Qi10} = rabbit_queue_index:read(7, 9, Qi9), - ok = verify_read_with_published(false, false, ReadE, - [Seven, Eight]), - Qi10 - end), - - %% e) as for (d), but use terminate instead of read, which will - %% exercise journal_minus_segment, not segment_plus_journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsE} = queue_index_publish([0,1,2,4,5,7], - true, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - {5, Qi4} = restart_test_queue(Qi3), - {Qi5, _SeqIdsMsgIdsF} = queue_index_publish([3,6,8], true, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {5, Qi8} = restart_test_queue(Qi7), - Qi8 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -variable_queue_init(QName, IsDurable, Recover) -> - rabbit_variable_queue:init(QName, IsDurable, Recover, - fun nop/1, fun nop/1, fun nop/2, fun nop/1). - -variable_queue_publish(IsPersistent, Count, VQ) -> - lists:foldl( - fun (_N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = case IsPersistent of - true -> 2; - false -> 1 - end}, <<>>), - #message_properties{}, VQN) - end, VQ, lists:seq(1, Count)). - -variable_queue_fetch(Count, IsPersistent, IsDelivered, Len, VQ) -> - lists:foldl(fun (N, {VQN, AckTagsAcc}) -> - Rem = Len - N, - {{#basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTagN, Rem}, VQM} = - rabbit_variable_queue:fetch(true, VQN), - {VQM, [AckTagN | AckTagsAcc]} - end, {VQ, []}, lists:seq(1, Count)). - -assert_prop(List, Prop, Value) -> - Value = proplists:get_value(Prop, List). - -assert_props(List, PropVals) -> - [assert_prop(List, Prop, Value) || {Prop, Value} <- PropVals]. - -with_fresh_variable_queue(Fun) -> - ok = empty_test_queue(), - VQ = variable_queue_init(test_queue(), true, false), - S0 = rabbit_variable_queue:status(VQ), - assert_props(S0, [{q1, 0}, {q2, 0}, - {delta, {delta, undefined, 0, undefined}}, - {q3, 0}, {q4, 0}, - {len, 0}]), - _ = rabbit_variable_queue:delete_and_terminate(Fun(VQ)), - passed. - -test_variable_queue() -> - [passed = with_fresh_variable_queue(F) || - F <- [fun test_variable_queue_dynamic_duration_change/1, - fun test_variable_queue_partial_segments_delta_thing/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere1/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere2/1, - fun test_dropwhile/1, - fun test_variable_queue_ack_limiting/1]], - passed. - -test_variable_queue_ack_limiting(VQ0) -> - %% start by sending in a bunch of messages - Len = 1024, - VQ1 = variable_queue_publish(false, Len, VQ0), - - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - %% update stats for duration - {_Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - - %% fetch half the messages - {VQ4, _AckTags} = variable_queue_fetch(Len div 2, false, false, Len, VQ3), - - VQ5 = check_variable_queue_status(VQ4, [{len , Len div 2}, - {ram_ack_count, Len div 2}, - {ram_msg_count, Len div 2}]), - - %% ensure all acks go to disk on 0 duration target - VQ6 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ5), - [{len, Len div 2}, - {target_ram_count, 0}, - {ram_msg_count, 0}, - {ram_ack_count, 0}]), - - VQ6. - -test_dropwhile(VQ0) -> - Count = 10, - - %% add messages with sequential expiry - VQ1 = lists:foldl( - fun (N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{}, <<>>), - #message_properties{expiry = N}, VQN) - end, VQ0, lists:seq(1, Count)), - - %% drop the first 5 messages - VQ2 = rabbit_variable_queue:dropwhile( - fun(#message_properties { expiry = Expiry }) -> - Expiry =< 5 - end, VQ1), - - %% fetch five now - VQ3 = lists:foldl(fun (_N, VQN) -> - {{#basic_message{}, _, _, _}, VQM} = - rabbit_variable_queue:fetch(false, VQN), - VQM - end, VQ2, lists:seq(6, Count)), - - %% should be empty now - {empty, VQ4} = rabbit_variable_queue:fetch(false, VQ3), - - VQ4. - -test_variable_queue_dynamic_duration_change(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - - %% start by sending in a couple of segments worth - Len = 2*SegmentSize, - VQ1 = variable_queue_publish(false, Len, VQ0), - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - {Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - VQ7 = lists:foldl( - fun (Duration1, VQ4) -> - {_Duration, VQ5} = rabbit_variable_queue:ram_duration(VQ4), - io:format("~p:~n~p~n", - [Duration1, rabbit_variable_queue:status(VQ5)]), - VQ6 = rabbit_variable_queue:set_ram_duration_target( - Duration1, VQ5), - publish_fetch_and_ack(Churn, Len, VQ6) - end, VQ3, [Duration / 4, 0, Duration / 4, infinity]), - - %% drain - {VQ8, AckTags} = variable_queue_fetch(Len, false, false, Len, VQ7), - VQ9 = rabbit_variable_queue:ack(AckTags, VQ8), - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - - VQ10. - -publish_fetch_and_ack(0, _Len, VQ0) -> - VQ0; -publish_fetch_and_ack(N, Len, VQ0) -> - VQ1 = variable_queue_publish(false, 1, VQ0), - {{_Msg, false, AckTag, Len}, VQ2} = rabbit_variable_queue:fetch(true, VQ1), - VQ3 = rabbit_variable_queue:ack([AckTag], VQ2), - publish_fetch_and_ack(N-1, Len, VQ3). - -test_variable_queue_partial_segments_delta_thing(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - HalfSegment = SegmentSize div 2, - OneAndAHalfSegment = SegmentSize + HalfSegment, - VQ1 = variable_queue_publish(true, OneAndAHalfSegment, VQ0), - {_Duration, VQ2} = rabbit_variable_queue:ram_duration(VQ1), - VQ3 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ2), - %% one segment in q3 as betas, and half a segment in delta - [{delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment}]), - VQ4 = rabbit_variable_queue:set_ram_duration_target(infinity, VQ3), - VQ5 = check_variable_queue_status( - variable_queue_publish(true, 1, VQ4), - %% one alpha, but it's in the same segment as the deltas - [{q1, 1}, - {delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment + 1}]), - {VQ6, AckTags} = variable_queue_fetch(SegmentSize, true, false, - SegmentSize + HalfSegment + 1, VQ5), - VQ7 = check_variable_queue_status( - VQ6, - %% the half segment should now be in q3 as betas - [{q1, 1}, - {delta, {delta, undefined, 0, undefined}}, - {q3, HalfSegment}, - {len, HalfSegment + 1}]), - {VQ8, AckTags1} = variable_queue_fetch(HalfSegment + 1, true, false, - HalfSegment + 1, VQ7), - VQ9 = rabbit_variable_queue:ack(AckTags ++ AckTags1, VQ8), - %% should be empty now - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - VQ10. - -check_variable_queue_status(VQ0, Props) -> - VQ1 = variable_queue_wait_for_shuffling_end(VQ0), - S = rabbit_variable_queue:status(VQ1), - io:format("~p~n", [S]), - assert_props(S, Props), - VQ1. - -variable_queue_wait_for_shuffling_end(VQ) -> - case rabbit_variable_queue:needs_idle_timeout(VQ) of - true -> variable_queue_wait_for_shuffling_end( - rabbit_variable_queue:idle_timeout(VQ)); - false -> VQ - end. - -test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - VQ1 = variable_queue_publish(true, Count, VQ0), - VQ2 = variable_queue_publish(false, Count, VQ1), - VQ3 = rabbit_variable_queue:set_ram_duration_target(0, VQ2), - {VQ4, _AckTags} = variable_queue_fetch(Count, true, false, - Count + Count, VQ3), - {VQ5, _AckTags1} = variable_queue_fetch(Count, false, false, - Count, VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = variable_queue_init(test_queue(), true, true), - {{_Msg1, true, _AckTag1, Count1}, VQ8} = - rabbit_variable_queue:fetch(true, VQ7), - VQ9 = variable_queue_publish(false, 1, VQ8), - VQ10 = rabbit_variable_queue:set_ram_duration_target(0, VQ9), - {VQ11, _AckTags2} = variable_queue_fetch(Count1, true, true, Count, VQ10), - {VQ12, _AckTags3} = variable_queue_fetch(1, false, false, 1, VQ11), - VQ12. - -test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ0) -> - VQ1 = rabbit_variable_queue:set_ram_duration_target(0, VQ0), - VQ2 = variable_queue_publish(false, 4, VQ1), - {VQ3, AckTags} = variable_queue_fetch(2, false, false, 4, VQ2), - VQ4 = rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, VQ3), - VQ5 = rabbit_variable_queue:idle_timeout(VQ4), - _VQ6 = rabbit_variable_queue:terminate(VQ5), - VQ7 = variable_queue_init(test_queue(), true, true), - {empty, VQ8} = rabbit_variable_queue:fetch(false, VQ7), - VQ8. - -test_queue_recover() -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - TxID = rabbit_guid:guid(), - {new, #amqqueue { pid = QPid, name = QName }} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - [begin - Msg = rabbit_basic:message(rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, <<>>), - Delivery = #delivery{mandatory = false, immediate = false, txn = TxID, - sender = self(), message = Msg}, - true = rabbit_amqqueue:deliver(QPid, Delivery) - end || _ <- lists:seq(1, Count)], - rabbit_amqqueue:commit_all([QPid], TxID, self()), - exit(QPid, kill), - MRef = erlang:monitor(process, QPid), - receive {'DOWN', MRef, process, QPid, _Info} -> ok - after 10000 -> exit(timeout_waiting_for_queue_death) - end, - rabbit_amqqueue:stop(), - ok = rabbit_amqqueue:start(), - rabbit_amqqueue:with_or_die( - QName, - fun (Q1 = #amqqueue { pid = QPid1 }) -> - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid1, _AckTag, true, _Msg}} = - rabbit_amqqueue:basic_get(Q1, self(), false), - exit(QPid1, shutdown), - VQ1 = variable_queue_init(QName, true, true), - {{_Msg1, true, _AckTag1, CountMinusOne}, VQ2} = - rabbit_variable_queue:fetch(true, VQ1), - _VQ3 = rabbit_variable_queue:delete_and_terminate(VQ2), - rabbit_amqqueue:internal_delete(QName) - end), - passed. - -test_variable_queue_delete_msg_store_files_callback() -> - ok = restart_msg_store_empty(), - {new, #amqqueue { pid = QPid, name = QName } = Q} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - TxID = rabbit_guid:guid(), - Payload = <<0:8388608>>, %% 1MB - Count = 30, - [begin - Msg = rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, Payload), - Delivery = #delivery{mandatory = false, immediate = false, txn = TxID, - sender = self(), message = Msg}, - true = rabbit_amqqueue:deliver(QPid, Delivery) - end || _ <- lists:seq(1, Count)], - rabbit_amqqueue:commit_all([QPid], TxID, self()), - rabbit_amqqueue:set_ram_duration_target(QPid, 0), - - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid, _AckTag, false, _Msg}} = - rabbit_amqqueue:basic_get(Q, self(), true), - {ok, CountMinusOne} = rabbit_amqqueue:purge(Q), - - %% give the queue a second to receive the close_fds callback msg - timer:sleep(1000), - - rabbit_amqqueue:delete(Q, false, false), - passed. - -test_configurable_server_properties() -> - %% List of the names of the built-in properties do we expect to find - BuiltInPropNames = [<<"product">>, <<"version">>, <<"platform">>, - <<"copyright">>, <<"information">>], - - Protocol = rabbit_framing_amqp_0_9_1, - - %% Verify that the built-in properties are initially present - ActualPropNames = [Key || {Key, longstr, _} <- - rabbit_reader:server_properties(Protocol)], - true = lists:all(fun (X) -> lists:member(X, ActualPropNames) end, - BuiltInPropNames), - - %% Get the initial server properties configured in the environment - {ok, ServerProperties} = application:get_env(rabbit, server_properties), - - %% Helper functions - ConsProp = fun (X) -> application:set_env(rabbit, - server_properties, - [X | ServerProperties]) end, - IsPropPresent = - fun (X) -> - lists:member(X, rabbit_reader:server_properties(Protocol)) - end, - - %% Add a wholly new property of the simplified {KeyAtom, StringValue} form - NewSimplifiedProperty = {NewHareKey, NewHareVal} = {hare, "soup"}, - ConsProp(NewSimplifiedProperty), - %% Do we find hare soup, appropriately formatted in the generated properties? - ExpectedHareImage = {list_to_binary(atom_to_list(NewHareKey)), - longstr, - list_to_binary(NewHareVal)}, - true = IsPropPresent(ExpectedHareImage), - - %% Add a wholly new property of the {BinaryKey, Type, Value} form - %% and check for it - NewProperty = {<<"new-bin-key">>, signedint, -1}, - ConsProp(NewProperty), - %% Do we find the new property? - true = IsPropPresent(NewProperty), - - %% Add a property that clobbers a built-in, and verify correct clobbering - {NewVerKey, NewVerVal} = NewVersion = {version, "X.Y.Z."}, - {BinNewVerKey, BinNewVerVal} = {list_to_binary(atom_to_list(NewVerKey)), - list_to_binary(NewVerVal)}, - ConsProp(NewVersion), - ClobberedServerProps = rabbit_reader:server_properties(Protocol), - %% Is the clobbering insert present? - true = IsPropPresent({BinNewVerKey, longstr, BinNewVerVal}), - %% Is the clobbering insert the only thing with the clobbering key? - [{BinNewVerKey, longstr, BinNewVerVal}] = - [E || {K, longstr, _V} = E <- ClobberedServerProps, K =:= BinNewVerKey], - - application:set_env(rabbit, server_properties, ServerProperties), - passed. - -nop(_) -> ok. -nop(_, _) -> ok. diff --git a/src/rabbit_tests_event_receiver.erl b/src/rabbit_tests_event_receiver.erl deleted file mode 100644 index 12c43faf..00000000 --- a/src/rabbit_tests_event_receiver.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests_event_receiver). - --export([start/1, stop/0]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - -start(Pid) -> - gen_event:add_handler(rabbit_event, ?MODULE, [Pid]). - -stop() -> - gen_event:delete_handler(rabbit_event, ?MODULE, []). - -%%---------------------------------------------------------------------------- - -init([Pid]) -> - {ok, Pid}. - -handle_call(_Request, Pid) -> - {ok, not_understood, Pid}. - -handle_event(Event, Pid) -> - Pid ! Event, - {ok, Pid}. - -handle_info(_Info, Pid) -> - {ok, Pid}. - -terminate(_Arg, _Pid) -> - ok. - -code_change(_OldVsn, Pid, _Extra) -> - {ok, Pid}. - -%%---------------------------------------------------------------------------- diff --git a/src/rabbit_types.erl b/src/rabbit_types.erl deleted file mode 100644 index 1f0f8bbe..00000000 --- a/src/rabbit_types.erl +++ /dev/null @@ -1,161 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_types). - --include("rabbit.hrl"). - --ifdef(use_specs). - --export_type([txn/0, maybe/1, info/0, infos/0, info_key/0, info_keys/0, - message/0, msg_id/0, basic_message/0, - delivery/0, content/0, decoded_content/0, undecoded_content/0, - unencoded_content/0, encoded_content/0, message_properties/0, - vhost/0, ctag/0, amqp_error/0, r/1, r2/2, r3/3, listener/0, - binding/0, binding_source/0, binding_destination/0, - amqqueue/0, exchange/0, - connection/0, protocol/0, user/0, internal_user/0, - username/0, password/0, password_hash/0, ok/1, error/1, - ok_or_error/1, ok_or_error2/2, ok_pid_or_error/0, channel_exit/0, - connection_exit/0]). - --type(channel_exit() :: no_return()). --type(connection_exit() :: no_return()). - --type(maybe(T) :: T | 'none'). --type(vhost() :: binary()). --type(ctag() :: binary()). - -%% TODO: make this more precise by tying specific class_ids to -%% specific properties --type(undecoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: 'none', - properties_bin :: binary(), - payload_fragments_rev :: [binary()]} | - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: 'none', - payload_fragments_rev :: [binary()]}). --type(unencoded_content() :: undecoded_content()). --type(decoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: maybe(binary()), - payload_fragments_rev :: [binary()]}). --type(encoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: maybe(rabbit_framing:amqp_property_record()), - properties_bin :: binary(), - payload_fragments_rev :: [binary()]}). --type(content() :: undecoded_content() | decoded_content()). --type(msg_id() :: rabbit_guid:guid()). --type(basic_message() :: - #basic_message{exchange_name :: rabbit_exchange:name(), - routing_keys :: [rabbit_router:routing_key()], - content :: content(), - id :: msg_id(), - is_persistent :: boolean()}). --type(message() :: basic_message()). --type(delivery() :: - #delivery{mandatory :: boolean(), - immediate :: boolean(), - txn :: maybe(txn()), - sender :: pid(), - message :: message()}). --type(message_properties() :: - #message_properties{expiry :: pos_integer() | 'undefined', - needs_confirming :: boolean()}). - -%% this is really an abstract type, but dialyzer does not support them --type(txn() :: rabbit_guid:guid()). - --type(info_key() :: atom()). --type(info_keys() :: [info_key()]). - --type(info() :: {info_key(), any()}). --type(infos() :: [info()]). - --type(amqp_error() :: - #amqp_error{name :: rabbit_framing:amqp_exception(), - explanation :: string(), - method :: rabbit_framing:amqp_method_name()}). - --type(r(Kind) :: - r2(vhost(), Kind)). --type(r2(VirtualHost, Kind) :: - r3(VirtualHost, Kind, rabbit_misc:resource_name())). --type(r3(VirtualHost, Kind, Name) :: - #resource{virtual_host :: VirtualHost, - kind :: Kind, - name :: Name}). - --type(listener() :: - #listener{node :: node(), - protocol :: atom(), - host :: rabbit_networking:hostname(), - port :: rabbit_networking:ip_port()}). - --type(binding_source() :: rabbit_exchange:name()). --type(binding_destination() :: rabbit_amqqueue:name() | rabbit_exchange:name()). - --type(binding() :: - #binding{source :: rabbit_exchange:name(), - destination :: binding_destination(), - key :: rabbit_binding:key(), - args :: rabbit_framing:amqp_table()}). - --type(amqqueue() :: - #amqqueue{name :: rabbit_amqqueue:name(), - durable :: boolean(), - auto_delete :: boolean(), - exclusive_owner :: rabbit_types:maybe(pid()), - arguments :: rabbit_framing:amqp_table(), - pid :: rabbit_types:maybe(pid())}). - --type(exchange() :: - #exchange{name :: rabbit_exchange:name(), - type :: rabbit_exchange:type(), - durable :: boolean(), - auto_delete :: boolean(), - arguments :: rabbit_framing:amqp_table()}). - --type(connection() :: pid()). - --type(protocol() :: rabbit_framing:protocol()). - --type(user() :: - #user{username :: username(), - is_admin :: boolean(), - auth_backend :: atom(), - impl :: any()}). - --type(internal_user() :: - #internal_user{username :: username(), - password_hash :: password_hash(), - is_admin :: boolean()}). - --type(username() :: binary()). --type(password() :: binary()). --type(password_hash() :: binary()). - --type(ok(A) :: {'ok', A}). --type(error(A) :: {'error', A}). --type(ok_or_error(A) :: 'ok' | error(A)). --type(ok_or_error2(A, B) :: ok(A) | error(B)). --type(ok_pid_or_error() :: ok_or_error2(pid(), any())). - --endif. % use_specs diff --git a/src/rabbit_upgrade.erl b/src/rabbit_upgrade.erl deleted file mode 100644 index a2abb1e5..00000000 --- a/src/rabbit_upgrade.erl +++ /dev/null @@ -1,287 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade). - --export([maybe_upgrade_mnesia/0, maybe_upgrade_local/0]). - --include("rabbit.hrl"). - --define(VERSION_FILENAME, "schema_version"). --define(LOCK_FILENAME, "schema_upgrade_lock"). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --spec(maybe_upgrade_mnesia/0 :: () -> 'ok'). --spec(maybe_upgrade_local/0 :: () -> 'ok' | 'version_not_available'). - --endif. - -%% ------------------------------------------------------------------- - -%% The upgrade logic is quite involved, due to the existence of -%% clusters. -%% -%% Firstly, we have two different types of upgrades to do: Mnesia and -%% everythinq else. Mnesia upgrades must only be done by one node in -%% the cluster (we treat a non-clustered node as a single-node -%% cluster). This is the primary upgrader. The other upgrades need to -%% be done by all nodes. -%% -%% The primary upgrader has to start first (and do its Mnesia -%% upgrades). Secondary upgraders need to reset their Mnesia database -%% and then rejoin the cluster. They can't do the Mnesia upgrades as -%% well and then merge databases since the cookie for each table will -%% end up different and the merge will fail. -%% -%% This in turn means that we need to determine whether we are the -%% primary or secondary upgrader *before* Mnesia comes up. If we -%% didn't then the secondary upgrader would try to start Mnesia, and -%% either hang waiting for a node which is not yet up, or fail since -%% its schema differs from the other nodes in the cluster. -%% -%% Also, the primary upgrader needs to start Mnesia to do its -%% upgrades, but needs to forcibly load tables rather than wait for -%% them (in case it was not the last node to shut down, in which case -%% it would wait forever). -%% -%% This in turn means that maybe_upgrade_mnesia/0 has to be patched -%% into the boot process by prelaunch before the mnesia application is -%% started. By the time Mnesia is started the upgrades have happened -%% (on the primary), or Mnesia has been reset (on the secondary) and -%% rabbit_mnesia:init_db/3 can then make the node rejoin the cluster -%% in the normal way. -%% -%% The non-mnesia upgrades are then triggered by -%% rabbit_mnesia:init_db/3. Of course, it's possible for a given -%% upgrade process to only require Mnesia upgrades, or only require -%% non-Mnesia upgrades. In the latter case no Mnesia resets and -%% reclusterings occur. -%% -%% The primary upgrader needs to be a disc node. Ideally we would like -%% it to be the last disc node to shut down (since otherwise there's a -%% risk of data loss). On each node we therefore record the disc nodes -%% that were still running when we shut down. A disc node that knows -%% other nodes were up when it shut down, or a ram node, will refuse -%% to be the primary upgrader, and will thus not start when upgrades -%% are needed. -%% -%% However, this is racy if several nodes are shut down at once. Since -%% rabbit records the running nodes, and shuts down before mnesia, the -%% race manifests as all disc nodes thinking they are not the primary -%% upgrader. Therefore the user can remove the record of the last disc -%% node to shut down to get things going again. This may lose any -%% mnesia changes that happened after the node chosen as the primary -%% upgrader was shut down. - -%% ------------------------------------------------------------------- - -ensure_backup_taken() -> - case filelib:is_file(lock_filename()) of - false -> case filelib:is_dir(backup_dir()) of - false -> ok = take_backup(); - _ -> ok - end; - true -> throw({error, previous_upgrade_failed}) - end. - -take_backup() -> - BackupDir = backup_dir(), - case rabbit_mnesia:copy_db(BackupDir) of - ok -> info("upgrades: Mnesia dir backed up to ~p~n", - [BackupDir]); - {error, E} -> throw({could_not_back_up_mnesia_dir, E}) - end. - -ensure_backup_removed() -> - case filelib:is_dir(backup_dir()) of - true -> ok = remove_backup(); - _ -> ok - end. - -remove_backup() -> - ok = rabbit_misc:recursive_delete([backup_dir()]), - info("upgrades: Mnesia backup removed~n", []). - -maybe_upgrade_mnesia() -> - AllNodes = rabbit_mnesia:all_clustered_nodes(), - case rabbit_version:upgrades_required(mnesia) of - {error, version_not_available} -> - case AllNodes of - [_] -> ok; - _ -> die("Cluster upgrade needed but upgrading from " - "< 2.1.1.~nUnfortunately you will need to " - "rebuild the cluster.", []) - end; - {error, _} = Err -> - throw(Err); - {ok, []} -> - ok; - {ok, Upgrades} -> - ensure_backup_taken(), - ok = case upgrade_mode(AllNodes) of - primary -> primary_upgrade(Upgrades, AllNodes); - secondary -> secondary_upgrade(AllNodes) - end - end. - -upgrade_mode(AllNodes) -> - case nodes_running(AllNodes) of - [] -> - AfterUs = rabbit_mnesia:read_previously_running_nodes(), - case {is_disc_node(), AfterUs} of - {true, []} -> - primary; - {true, _} -> - Filename = rabbit_mnesia:running_nodes_filename(), - die("Cluster upgrade needed but other disc nodes shut " - "down after this one.~nPlease first start the last " - "disc node to shut down.~n~nNote: if several disc " - "nodes were shut down simultaneously they may " - "all~nshow this message. In which case, remove " - "the lock file on one of them and~nstart that node. " - "The lock file on this node is:~n~n ~s ", [Filename]); - {false, _} -> - die("Cluster upgrade needed but this is a ram node.~n" - "Please first start the last disc node to shut down.", - []) - end; - [Another|_] -> - MyVersion = rabbit_version:desired_for_scope(mnesia), - ErrFun = fun (ClusterVersion) -> - %% The other node(s) are running an - %% unexpected version. - die("Cluster upgrade needed but other nodes are " - "running ~p~nand I want ~p", - [ClusterVersion, MyVersion]) - end, - case rpc:call(Another, rabbit_version, desired_for_scope, - [mnesia]) of - {badrpc, {'EXIT', {undef, _}}} -> ErrFun(unknown_old_version); - {badrpc, Reason} -> ErrFun({unknown, Reason}); - CV -> case rabbit_version:matches( - MyVersion, CV) of - true -> secondary; - false -> ErrFun(CV) - end - end - end. - -is_disc_node() -> - %% This is pretty ugly but we can't start Mnesia and ask it (will hang), - %% we can't look at the config file (may not include us even if we're a - %% disc node). - filelib:is_regular(filename:join(dir(), "rabbit_durable_exchange.DCD")). - -die(Msg, Args) -> - %% We don't throw or exit here since that gets thrown - %% straight out into do_boot, generating an erl_crash.dump - %% and displaying any error message in a confusing way. - error_logger:error_msg(Msg, Args), - io:format("~n~n****~n~n" ++ Msg ++ "~n~n****~n~n~n", Args), - error_logger:logfile(close), - halt(1). - -primary_upgrade(Upgrades, Nodes) -> - Others = Nodes -- [node()], - ok = apply_upgrades( - mnesia, - Upgrades, - fun () -> - force_tables(), - case Others of - [] -> ok; - _ -> info("mnesia upgrades: Breaking cluster~n", []), - [{atomic, ok} = mnesia:del_table_copy(schema, Node) - || Node <- Others] - end - end), - ok. - -force_tables() -> - [mnesia:force_load_table(T) || T <- rabbit_mnesia:table_names()]. - -secondary_upgrade(AllNodes) -> - %% must do this before we wipe out schema - IsDiscNode = is_disc_node(), - rabbit_misc:ensure_ok(mnesia:delete_schema([node()]), - cannot_delete_schema), - %% Note that we cluster with all nodes, rather than all disc nodes - %% (as we can't know all disc nodes at this point). This is safe as - %% we're not writing the cluster config, just setting up Mnesia. - ClusterNodes = case IsDiscNode of - true -> AllNodes; - false -> AllNodes -- [node()] - end, - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok = rabbit_mnesia:init_db(ClusterNodes, true, fun () -> ok end), - ok = rabbit_version:record_desired_for_scope(mnesia), - ok. - -nodes_running(Nodes) -> - [N || N <- Nodes, node_running(N)]. - -node_running(Node) -> - case rpc:call(Node, application, which_applications, []) of - {badrpc, _} -> false; - Apps -> lists:keysearch(rabbit, 1, Apps) =/= false - end. - -%% ------------------------------------------------------------------- - -maybe_upgrade_local() -> - case rabbit_version:upgrades_required(local) of - {error, version_not_available} -> version_not_available; - {error, _} = Err -> throw(Err); - {ok, []} -> ensure_backup_removed(), - ok; - {ok, Upgrades} -> mnesia:stop(), - ensure_backup_taken(), - ok = apply_upgrades(local, Upgrades, - fun () -> ok end), - ensure_backup_removed(), - ok - end. - -%% ------------------------------------------------------------------- - -apply_upgrades(Scope, Upgrades, Fun) -> - ok = rabbit_misc:lock_file(lock_filename()), - info("~s upgrades: ~w to apply~n", [Scope, length(Upgrades)]), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - Fun(), - [apply_upgrade(Scope, Upgrade) || Upgrade <- Upgrades], - info("~s upgrades: All upgrades applied successfully~n", [Scope]), - ok = rabbit_version:record_desired_for_scope(Scope), - ok = file:delete(lock_filename()). - -apply_upgrade(Scope, {M, F}) -> - info("~s upgrades: Applying ~w:~w~n", [Scope, M, F]), - ok = apply(M, F, []). - -%% ------------------------------------------------------------------- - -dir() -> rabbit_mnesia:dir(). - -lock_filename() -> lock_filename(dir()). -lock_filename(Dir) -> filename:join(Dir, ?LOCK_FILENAME). -backup_dir() -> dir() ++ "-upgrade-backup". - -%% NB: we cannot use rabbit_log here since it may not have been -%% started yet -info(Msg, Args) -> error_logger:info_msg(Msg, Args). diff --git a/src/rabbit_upgrade_functions.erl b/src/rabbit_upgrade_functions.erl deleted file mode 100644 index 7567c29e..00000000 --- a/src/rabbit_upgrade_functions.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade_functions). - --include("rabbit.hrl"). - --compile([export_all]). - --rabbit_upgrade({remove_user_scope, mnesia, []}). --rabbit_upgrade({hash_passwords, mnesia, []}). --rabbit_upgrade({add_ip_to_listener, mnesia, []}). --rabbit_upgrade({internal_exchanges, mnesia, []}). --rabbit_upgrade({user_to_internal_user, mnesia, [hash_passwords]}). --rabbit_upgrade({topic_trie, mnesia, []}). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --spec(remove_user_scope/0 :: () -> 'ok'). --spec(hash_passwords/0 :: () -> 'ok'). --spec(add_ip_to_listener/0 :: () -> 'ok'). --spec(internal_exchanges/0 :: () -> 'ok'). --spec(user_to_internal_user/0 :: () -> 'ok'). --spec(topic_trie/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -%% It's a bad idea to use records or record_info here, even for the -%% destination form. Because in the future, the destination form of -%% your current transform may not match the record any more, and it -%% would be messy to have to go back and fix old transforms at that -%% point. - -remove_user_scope() -> - transform( - rabbit_user_permission, - fun ({user_permission, UV, {permission, _Scope, Conf, Write, Read}}) -> - {user_permission, UV, {permission, Conf, Write, Read}} - end, - [user_vhost, permission]). - -hash_passwords() -> - transform( - rabbit_user, - fun ({user, Username, Password, IsAdmin}) -> - Hash = rabbit_auth_backend_internal:hash_password(Password), - {user, Username, Hash, IsAdmin} - end, - [username, password_hash, is_admin]). - -add_ip_to_listener() -> - transform( - rabbit_listener, - fun ({listener, Node, Protocol, Host, Port}) -> - {listener, Node, Protocol, Host, {0,0,0,0}, Port} - end, - [node, protocol, host, ip_address, port]). - -internal_exchanges() -> - Tables = [rabbit_exchange, rabbit_durable_exchange], - AddInternalFun = - fun ({exchange, Name, Type, Durable, AutoDelete, Args}) -> - {exchange, Name, Type, Durable, AutoDelete, false, Args} - end, - [ ok = transform(T, - AddInternalFun, - [name, type, durable, auto_delete, internal, arguments]) - || T <- Tables ], - ok. - -user_to_internal_user() -> - transform( - rabbit_user, - fun({user, Username, PasswordHash, IsAdmin}) -> - {internal_user, Username, PasswordHash, IsAdmin} - end, - [username, password_hash, is_admin], internal_user). - -topic_trie() -> - create(rabbit_topic_trie_edge, [{record_name, topic_trie_edge}, - {attributes, [trie_edge, node_id]}, - {type, ordered_set}]), - create(rabbit_topic_trie_binding, [{record_name, topic_trie_binding}, - {attributes, [trie_binding, value]}, - {type, ordered_set}]). - -%%-------------------------------------------------------------------- - -transform(TableName, Fun, FieldList) -> - rabbit_mnesia:wait_for_tables([TableName]), - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList), - ok. - -transform(TableName, Fun, FieldList, NewRecordName) -> - rabbit_mnesia:wait_for_tables([TableName]), - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList, - NewRecordName), - ok. - -create(Tab, TabDef) -> - {atomic, ok} = mnesia:create_table(Tab, TabDef), - ok. diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl deleted file mode 100644 index ff7252fd..00000000 --- a/src/rabbit_variable_queue.erl +++ /dev/null @@ -1,1840 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_variable_queue). - --export([init/5, terminate/1, delete_and_terminate/1, - purge/1, publish/3, publish_delivered/4, drain_confirmed/1, - fetch/2, ack/2, tx_publish/4, tx_ack/3, tx_rollback/2, tx_commit/4, - requeue/3, len/1, is_empty/1, dropwhile/2, - set_ram_duration_target/2, ram_duration/1, - needs_idle_timeout/1, idle_timeout/1, handle_pre_hibernate/1, - status/1, multiple_routing_keys/0]). - --export([start/1, stop/0]). - -%% exported for testing only --export([start_msg_store/2, stop_msg_store/0, init/7]). - -%%---------------------------------------------------------------------------- -%% Definitions: - -%% alpha: this is a message where both the message itself, and its -%% position within the queue are held in RAM -%% -%% beta: this is a message where the message itself is only held on -%% disk, but its position within the queue is held in RAM. -%% -%% gamma: this is a message where the message itself is only held on -%% disk, but its position is both in RAM and on disk. -%% -%% delta: this is a collection of messages, represented by a single -%% term, where the messages and their position are only held on -%% disk. -%% -%% Note that for persistent messages, the message and its position -%% within the queue are always held on disk, *in addition* to being in -%% one of the above classifications. -%% -%% Also note that within this code, the term gamma never -%% appears. Instead, gammas are defined by betas who have had their -%% queue position recorded on disk. -%% -%% In general, messages move q1 -> q2 -> delta -> q3 -> q4, though -%% many of these steps are frequently skipped. q1 and q4 only hold -%% alphas, q2 and q3 hold both betas and gammas (as queues of queues, -%% using the bpqueue module where the block prefix determines whether -%% they're betas or gammas). When a message arrives, its -%% classification is determined. It is then added to the rightmost -%% appropriate queue. -%% -%% If a new message is determined to be a beta or gamma, q1 is -%% empty. If a new message is determined to be a delta, q1 and q2 are -%% empty (and actually q4 too). -%% -%% When removing messages from a queue, if q4 is empty then q3 is read -%% directly. If q3 becomes empty then the next segment's worth of -%% messages from delta are read into q3, reducing the size of -%% delta. If the queue is non empty, either q4 or q3 contain -%% entries. It is never permitted for delta to hold all the messages -%% in the queue. -%% -%% The duration indicated to us by the memory_monitor is used to -%% calculate, given our current ingress and egress rates, how many -%% messages we should hold in RAM. We track the ingress and egress -%% rates for both messages and pending acks and rates for both are -%% considered when calculating the number of messages to hold in -%% RAM. When we need to push alphas to betas or betas to gammas, we -%% favour writing out messages that are further from the head of the -%% queue. This minimises writes to disk, as the messages closer to the -%% tail of the queue stay in the queue for longer, thus do not need to -%% be replaced as quickly by sending other messages to disk. -%% -%% Whilst messages are pushed to disk and forgotten from RAM as soon -%% as requested by a new setting of the queue RAM duration, the -%% inverse is not true: we only load messages back into RAM as -%% demanded as the queue is read from. Thus only publishes to the -%% queue will take up available spare capacity. -%% -%% When we report our duration to the memory monitor, we calculate -%% average ingress and egress rates over the last two samples, and -%% then calculate our duration based on the sum of the ingress and -%% egress rates. More than two samples could be used, but it's a -%% balance between responding quickly enough to changes in -%% producers/consumers versus ignoring temporary blips. The problem -%% with temporary blips is that with just a few queues, they can have -%% substantial impact on the calculation of the average duration and -%% hence cause unnecessary I/O. Another alternative is to increase the -%% amqqueue_process:RAM_DURATION_UPDATE_PERIOD to beyond 5 -%% seconds. However, that then runs the risk of being too slow to -%% inform the memory monitor of changes. Thus a 5 second interval, -%% plus a rolling average over the last two samples seems to work -%% well in practice. -%% -%% The sum of the ingress and egress rates is used because the egress -%% rate alone is not sufficient. Adding in the ingress rate means that -%% queues which are being flooded by messages are given more memory, -%% resulting in them being able to process the messages faster (by -%% doing less I/O, or at least deferring it) and thus helping keep -%% their mailboxes empty and thus the queue as a whole is more -%% responsive. If such a queue also has fast but previously idle -%% consumers, the consumer can then start to be driven as fast as it -%% can go, whereas if only egress rate was being used, the incoming -%% messages may have to be written to disk and then read back in, -%% resulting in the hard disk being a bottleneck in driving the -%% consumers. Generally, we want to give Rabbit every chance of -%% getting rid of messages as fast as possible and remaining -%% responsive, and using only the egress rate impacts that goal. -%% -%% If a queue is full of transient messages, then the transition from -%% betas to deltas will be potentially very expensive as millions of -%% entries must be written to disk by the queue_index module. This can -%% badly stall the queue. In order to avoid this, the proportion of -%% gammas / (betas+gammas) must not be lower than (betas+gammas) / -%% (alphas+betas+gammas). As the queue grows or available memory -%% shrinks, the latter ratio increases, requiring the conversion of -%% more gammas to betas in order to maintain the invariant. At the -%% point at which betas and gammas must be converted to deltas, there -%% should be very few betas remaining, thus the transition is fast (no -%% work needs to be done for the gamma -> delta transition). -%% -%% The conversion of betas to gammas is done in batches of exactly -%% ?IO_BATCH_SIZE. This value should not be too small, otherwise the -%% frequent operations on the queues of q2 and q3 will not be -%% effectively amortised (switching the direction of queue access -%% defeats amortisation), nor should it be too big, otherwise -%% converting a batch stalls the queue for too long. Therefore, it -%% must be just right. ram_index_count is used here and is the number -%% of betas. -%% -%% The conversion from alphas to betas is also chunked, but only to -%% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at -%% any one time. This further smooths the effects of changes to the -%% target_ram_count and ensures the queue remains responsive -%% even when there is a large amount of IO work to do. The -%% idle_timeout callback is utilised to ensure that conversions are -%% done as promptly as possible whilst ensuring the queue remains -%% responsive. -%% -%% In the queue we keep track of both messages that are pending -%% delivery and messages that are pending acks. In the event of a -%% queue purge, we only need to load qi segments if the queue has -%% elements in deltas (i.e. it came under significant memory -%% pressure). In the event of a queue deletion, in addition to the -%% preceding, by keeping track of pending acks in RAM, we do not need -%% to search through qi segments looking for messages that are yet to -%% be acknowledged. -%% -%% Pending acks are recorded in memory either as the tuple {SeqId, -%% MsgId, MsgProps} (tuple-form) or as the message itself (message- -%% form). Acks for persistent messages are always stored in the tuple- -%% form. Acks for transient messages are also stored in tuple-form if -%% the message has been sent to disk as part of the memory reduction -%% process. For transient messages that haven't already been written -%% to disk, acks are stored in message-form. -%% -%% During memory reduction, acks stored in message-form are converted -%% to tuple-form, and the corresponding messages are pushed out to -%% disk. -%% -%% The order in which alphas are pushed to betas and message-form acks -%% are pushed to disk is determined dynamically. We always prefer to -%% push messages for the source (alphas or acks) that is growing the -%% fastest (with growth measured as avg. ingress - avg. egress). In -%% each round of memory reduction a chunk of messages at most -%% ?IO_BATCH_SIZE in size is allocated to be pushed to disk. The -%% fastest growing source will be reduced by as much of this chunk as -%% possible. If there is any remaining allocation in the chunk after -%% the first source has been reduced to zero, the second source will -%% be reduced by as much of the remaining chunk as possible. -%% -%% Notes on Clean Shutdown -%% (This documents behaviour in variable_queue, queue_index and -%% msg_store.) -%% -%% In order to try to achieve as fast a start-up as possible, if a -%% clean shutdown occurs, we try to save out state to disk to reduce -%% work on startup. In the msg_store this takes the form of the -%% index_module's state, plus the file_summary ets table, and client -%% refs. In the VQ, this takes the form of the count of persistent -%% messages in the queue and references into the msg_stores. The -%% queue_index adds to these terms the details of its segments and -%% stores the terms in the queue directory. -%% -%% Two message stores are used. One is created for persistent messages -%% to durable queues that must survive restarts, and the other is used -%% for all other messages that just happen to need to be written to -%% disk. On start up we can therefore nuke the transient message -%% store, and be sure that the messages in the persistent store are -%% all that we need. -%% -%% The references to the msg_stores are there so that the msg_store -%% knows to only trust its saved state if all of the queues it was -%% previously talking to come up cleanly. Likewise, the queues -%% themselves (esp queue_index) skips work in init if all the queues -%% and msg_store were shutdown cleanly. This gives both good speed -%% improvements and also robustness so that if anything possibly went -%% wrong in shutdown (or there was subsequent manual tampering), all -%% messages and queues that can be recovered are recovered, safely. -%% -%% To delete transient messages lazily, the variable_queue, on -%% startup, stores the next_seq_id reported by the queue_index as the -%% transient_threshold. From that point on, whenever it's reading a -%% message off disk via the queue_index, if the seq_id is below this -%% threshold and the message is transient then it drops the message -%% (the message itself won't exist on disk because it would have been -%% stored in the transient msg_store which would have had its saved -%% state nuked on startup). This avoids the expensive operation of -%% scanning the entire queue on startup in order to delete transient -%% messages that were only pushed to disk to save memory. -%% -%%---------------------------------------------------------------------------- - --behaviour(rabbit_backing_queue). - --record(vqstate, - { q1, - q2, - delta, - q3, - q4, - next_seq_id, - pending_ack, - pending_ack_index, - ram_ack_index, - index_state, - msg_store_clients, - on_sync, - durable, - transient_threshold, - - async_callback, - sync_callback, - - len, - persistent_count, - - target_ram_count, - ram_msg_count, - ram_msg_count_prev, - ram_ack_count_prev, - ram_index_count, - out_counter, - in_counter, - rates, - msgs_on_disk, - msg_indices_on_disk, - unconfirmed, - confirmed, - ack_out_counter, - ack_in_counter, - ack_rates - }). - --record(rates, { egress, ingress, avg_egress, avg_ingress, timestamp }). - --record(msg_status, - { seq_id, - msg_id, - msg, - is_persistent, - is_delivered, - msg_on_disk, - index_on_disk, - msg_props - }). - --record(delta, - { start_seq_id, %% start_seq_id is inclusive - count, - end_seq_id %% end_seq_id is exclusive - }). - --record(tx, { pending_messages, pending_acks }). - --record(sync, { acks_persistent, acks_all, pubs, funs }). - -%% When we discover, on publish, that we should write some indices to -%% disk for some betas, the IO_BATCH_SIZE sets the number of betas -%% that we must be due to write indices for before we do any work at -%% all. This is both a minimum and a maximum - we don't write fewer -%% than IO_BATCH_SIZE indices out in one go, and we don't write more - -%% we can always come back on the next publish to do more. --define(IO_BATCH_SIZE, 64). --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({multiple_routing_keys, local, []}). - --ifdef(use_specs). - --type(timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --type(seq_id() :: non_neg_integer()). --type(ack() :: seq_id()). - --type(rates() :: #rates { egress :: {timestamp(), non_neg_integer()}, - ingress :: {timestamp(), non_neg_integer()}, - avg_egress :: float(), - avg_ingress :: float(), - timestamp :: timestamp() }). - --type(delta() :: #delta { start_seq_id :: non_neg_integer(), - count :: non_neg_integer(), - end_seq_id :: non_neg_integer() }). - --type(sync() :: #sync { acks_persistent :: [[seq_id()]], - acks_all :: [[seq_id()]], - pubs :: [{message_properties_transformer(), - [rabbit_types:basic_message()]}], - funs :: [fun (() -> any())] }). - --type(state() :: #vqstate { - q1 :: queue(), - q2 :: bpqueue:bpqueue(), - delta :: delta(), - q3 :: bpqueue:bpqueue(), - q4 :: queue(), - next_seq_id :: seq_id(), - pending_ack :: dict(), - ram_ack_index :: gb_tree(), - index_state :: any(), - msg_store_clients :: 'undefined' | {{any(), binary()}, - {any(), binary()}}, - on_sync :: sync(), - durable :: boolean(), - transient_threshold :: non_neg_integer(), - - async_callback :: async_callback(), - sync_callback :: sync_callback(), - - len :: non_neg_integer(), - persistent_count :: non_neg_integer(), - - target_ram_count :: non_neg_integer() | 'infinity', - ram_msg_count :: non_neg_integer(), - ram_msg_count_prev :: non_neg_integer(), - ram_index_count :: non_neg_integer(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), - rates :: rates(), - msgs_on_disk :: gb_set(), - msg_indices_on_disk :: gb_set(), - unconfirmed :: gb_set(), - confirmed :: gb_set(), - ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer(), - ack_rates :: rates() }). - --include("rabbit_backing_queue_spec.hrl"). - --spec(multiple_routing_keys/0 :: () -> 'ok'). - --endif. - --define(BLANK_DELTA, #delta { start_seq_id = undefined, - count = 0, - end_seq_id = undefined }). --define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, - count = 0, - end_seq_id = Z }). - --define(BLANK_SYNC, #sync { acks_persistent = [], - acks_all = [], - pubs = [], - funs = [] }). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start(DurableQueues) -> - {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), - start_msg_store( - [Ref || Terms <- AllTerms, - begin - Ref = proplists:get_value(persistent_ref, Terms), - Ref =/= undefined - end], - StartFunState). - -stop() -> stop_msg_store(). - -start_msg_store(Refs, StartFunState) -> - ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, - [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), - undefined, {fun (ok) -> finished end, ok}]), - ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, - [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), - Refs, StartFunState]). - -stop_msg_store() -> - ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), - ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). - -init(QueueName, IsDurable, Recover, AsyncCallback, SyncCallback) -> - init(QueueName, IsDurable, Recover, AsyncCallback, SyncCallback, - fun (MsgIds, ActionTaken) -> - msgs_written_to_disk(AsyncCallback, MsgIds, ActionTaken) - end, - fun (MsgIds) -> msg_indices_written_to_disk(AsyncCallback, MsgIds) end). - -init(QueueName, IsDurable, false, AsyncCallback, SyncCallback, - MsgOnDiskFun, MsgIdxOnDiskFun) -> - IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), - init(IsDurable, IndexState, 0, [], AsyncCallback, SyncCallback, - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskFun, AsyncCallback); - false -> undefined - end, - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined, AsyncCallback)); - -init(QueueName, true, true, AsyncCallback, SyncCallback, - MsgOnDiskFun, MsgIdxOnDiskFun) -> - Terms = rabbit_queue_index:shutdown_terms(QueueName), - {PRef, TRef, Terms1} = - case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of - [] -> {proplists:get_value(persistent_ref, Terms), - proplists:get_value(transient_ref, Terms), - Terms}; - _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} - end, - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef, - MsgOnDiskFun, AsyncCallback), - TransientClient = msg_store_client_init(?TRANSIENT_MSG_STORE, TRef, - undefined, AsyncCallback), - {DeltaCount, IndexState} = - rabbit_queue_index:recover( - QueueName, Terms1, - rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), - fun (MsgId) -> - rabbit_msg_store:contains(MsgId, PersistentClient) - end, - MsgIdxOnDiskFun), - init(true, IndexState, DeltaCount, Terms1, AsyncCallback, SyncCallback, - PersistentClient, TransientClient). - -terminate(State) -> - State1 = #vqstate { persistent_count = PCount, - index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(true, tx_commit_index(State)), - PRef = case MSCStateP of - undefined -> undefined; - _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), - rabbit_msg_store:client_ref(MSCStateP) - end, - ok = rabbit_msg_store:client_terminate(MSCStateT), - TRef = rabbit_msg_store:client_ref(MSCStateT), - Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}, - {persistent_count, PCount}], - a(State1 #vqstate { index_state = rabbit_queue_index:terminate( - Terms, IndexState), - msg_store_clients = undefined }). - -%% the only difference between purge and delete is that delete also -%% needs to delete everything that's been delivered and not ack'd. -delete_and_terminate(State) -> - %% TODO: there is no need to interact with qi at all - which we do - %% as part of 'purge' and 'remove_pending_ack', other than - %% deleting it. - {_PurgeCount, State1} = purge(State), - State2 = #vqstate { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(false, State1), - IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), - case MSCStateP of - undefined -> ok; - _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) - end, - rabbit_msg_store:client_delete_and_terminate(MSCStateT), - a(State2 #vqstate { index_state = IndexState1, - msg_store_clients = undefined }). - -purge(State = #vqstate { q4 = Q4, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% TODO: when there are no pending acks, which is a common case, - %% we could simply wipe the qi instead of issuing delivers and - %% acks for all the messages. - {LensByStore, IndexState1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q4, - orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #vqstate { q1 = Q1, - index_state = IndexState2, - msg_store_clients = MSCState1 }} = - purge_betas_and_deltas(LensByStore, - State #vqstate { q4 = queue:new(), - index_state = IndexState1 }), - {LensByStore2, IndexState3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q1, - LensByStore1, IndexState2, MSCState1), - PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, a(State1 #vqstate { q1 = queue:new(), - index_state = IndexState3, - len = 0, - ram_msg_count = 0, - ram_index_count = 0, - persistent_count = PCount1 })}. - -publish(Msg, MsgProps, State) -> - {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), - a(reduce_memory_use(State1)). - -publish_delivered(false, #basic_message { id = MsgId }, - #message_properties { needs_confirming = NeedsConfirming }, - State = #vqstate { async_callback = Callback, len = 0 }) -> - case NeedsConfirming of - true -> blind_confirm(Callback, gb_sets:singleton(MsgId)); - false -> ok - end, - {undefined, a(State)}; -publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, - id = MsgId }, - MsgProps = #message_properties { - needs_confirming = NeedsConfirming }, - State = #vqstate { len = 0, - next_seq_id = SeqId, - out_counter = OutCount, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = true }, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = record_pending_ack(m(MsgStatus1), State1), - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, MsgId, UC), - {SeqId, a(reduce_memory_use( - State2 #vqstate { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - unconfirmed = UC1 }))}. - -drain_confirmed(State = #vqstate { confirmed = C }) -> - {gb_sets:to_list(C), State #vqstate { confirmed = gb_sets:new() }}. - -dropwhile(Pred, State) -> - {_OkOrEmpty, State1} = dropwhile1(Pred, State), - a(State1). - -dropwhile1(Pred, State) -> - internal_queue_out( - fun(MsgStatus = #msg_status { msg_props = MsgProps }, State1) -> - case Pred(MsgProps) of - true -> - {_, State2} = internal_fetch(false, MsgStatus, State1), - dropwhile1(Pred, State2); - false -> - %% message needs to go back into Q4 (or maybe go - %% in for the first time if it was loaded from - %% Q3). Also the msg contents might not be in - %% RAM, so read them in now - {MsgStatus1, State2 = #vqstate { q4 = Q4 }} = - read_msg(MsgStatus, State1), - {ok, State2 #vqstate {q4 = queue:in_r(MsgStatus1, Q4) }} - end - end, State). - -fetch(AckRequired, State) -> - internal_queue_out( - fun(MsgStatus, State1) -> - %% it's possible that the message wasn't read from disk - %% at this point, so read it in. - {MsgStatus1, State2} = read_msg(MsgStatus, State1), - internal_fetch(AckRequired, MsgStatus1, State2) - end, State). - -internal_queue_out(Fun, State = #vqstate { q4 = Q4 }) -> - case queue:out(Q4) of - {empty, _Q4} -> - case fetch_from_q3(State) of - {empty, State1} = Result -> a(State1), Result; - {loaded, {MsgStatus, State1}} -> Fun(MsgStatus, State1) - end; - {{value, MsgStatus}, Q4a} -> - Fun(MsgStatus, State #vqstate { q4 = Q4a }) - end. - -read_msg(MsgStatus = #msg_status { msg = undefined, - msg_id = MsgId, - is_persistent = IsPersistent }, - State = #vqstate { ram_msg_count = RamMsgCount, - msg_store_clients = MSCState}) -> - {{ok, Msg = #basic_message {}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, MsgId), - {MsgStatus #msg_status { msg = Msg }, - State #vqstate { ram_msg_count = RamMsgCount + 1, - msg_store_clients = MSCState1 }}; -read_msg(MsgStatus, State) -> - {MsgStatus, State}. - -internal_fetch(AckRequired, MsgStatus = #msg_status { - seq_id = SeqId, - msg_id = MsgId, - msg = Msg, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - State = #vqstate {ram_msg_count = RamMsgCount, - out_counter = OutCount, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% 1. Mark it delivered if necessary - IndexState1 = maybe_write_delivered( - IndexOnDisk andalso not IsDelivered, - SeqId, IndexState), - - %% 2. Remove from msg_store and queue index, if necessary - Rem = fun () -> - ok = msg_store_remove(MSCState, IsPersistent, [MsgId]) - end, - Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, - IndexState2 = - case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of - {false, true, false, _} -> Rem(), IndexState1; - {false, true, true, _} -> Rem(), Ack(); - { true, true, true, false} -> Ack(); - _ -> IndexState1 - end, - - %% 3. If an ack is required, add something sensible to PA - {AckTag, State1} = case AckRequired of - true -> StateN = record_pending_ack( - MsgStatus #msg_status { - is_delivered = true }, State), - {SeqId, StateN}; - false -> {undefined, State} - end, - - PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), - Len1 = Len - 1, - RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), - - {{Msg, IsDelivered, AckTag, Len1}, - a(State1 #vqstate { ram_msg_count = RamMsgCount1, - out_counter = OutCount + 1, - index_state = IndexState2, - len = Len1, - persistent_count = PCount1 })}. - -ack(AckTags, State) -> - a(ack(fun msg_store_remove/3, - fun (_, State0) -> State0 end, - AckTags, State)). - -tx_publish(Txn, Msg = #basic_message { is_persistent = IsPersistent }, MsgProps, - State = #vqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> - Tx = #tx { pending_messages = Pubs } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_messages = [{Msg, MsgProps} | Pubs] }), - case IsPersistent andalso IsDurable of - true -> MsgStatus = msg_status(true, undefined, Msg, MsgProps), - #msg_status { msg_on_disk = true } = - maybe_write_msg_to_disk(false, MsgStatus, MSCState); - false -> ok - end, - a(State). - -tx_ack(Txn, AckTags, State) -> - Tx = #tx { pending_acks = Acks } = lookup_tx(Txn), - store_tx(Txn, Tx #tx { pending_acks = [AckTags | Acks] }), - State. - -tx_rollback(Txn, State = #vqstate { durable = IsDurable, - msg_store_clients = MSCState }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), - erase_tx(Txn), - ok = case IsDurable of - true -> msg_store_remove(MSCState, true, - persistent_msg_ids(Pubs)); - false -> ok - end, - {lists:append(AckTags), a(State)}. - -tx_commit(Txn, Fun, MsgPropsFun, - State = #vqstate { durable = IsDurable, - async_callback = AsyncCallback, - sync_callback = SyncCallback, - msg_store_clients = MSCState }) -> - #tx { pending_acks = AckTags, pending_messages = Pubs } = lookup_tx(Txn), - erase_tx(Txn), - AckTags1 = lists:append(AckTags), - PersistentMsgIds = persistent_msg_ids(Pubs), - HasPersistentPubs = PersistentMsgIds =/= [], - {AckTags1, - a(case IsDurable andalso HasPersistentPubs of - true -> MsgStoreCallback = - fun () -> msg_store_callback( - PersistentMsgIds, Pubs, AckTags1, Fun, - MsgPropsFun, AsyncCallback, SyncCallback) - end, - ok = msg_store_sync(MSCState, true, PersistentMsgIds, - fun () -> spawn(MsgStoreCallback) end), - State; - false -> tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags1, - Fun, MsgPropsFun, State) - end)}. - -requeue(AckTags, MsgPropsFun, State) -> - MsgPropsFun1 = fun (MsgProps) -> - (MsgPropsFun(MsgProps)) #message_properties { - needs_confirming = false } - end, - a(reduce_memory_use( - ack(fun (_, _, _) -> ok end, - fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> - {_SeqId, State2} = publish(Msg, MsgPropsFun1(MsgProps), - true, false, State1), - State2; - ({IsPersistent, MsgId, MsgProps}, State1) -> - #vqstate { msg_store_clients = MSCState } = State1, - {{ok, Msg = #basic_message{}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, MsgId), - State2 = State1 #vqstate { msg_store_clients = MSCState1 }, - {_SeqId, State3} = publish(Msg, MsgPropsFun1(MsgProps), - true, true, State2), - State3 - end, - AckTags, State))). - -len(#vqstate { len = Len }) -> Len. - -is_empty(State) -> 0 == len(State). - -set_ram_duration_target( - DurationTarget, State = #vqstate { - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate }, - target_ram_count = TargetRamCount }) -> - Rate = - AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, - TargetRamCount1 = - case DurationTarget of - infinity -> infinity; - _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec - end, - State1 = State #vqstate { target_ram_count = TargetRamCount1 }, - a(case TargetRamCount1 == infinity orelse - (TargetRamCount =/= infinity andalso - TargetRamCount1 >= TargetRamCount) of - true -> State1; - false -> reduce_memory_use(State1) - end). - -ram_duration(State = #vqstate { - rates = #rates { timestamp = Timestamp, - egress = Egress, - ingress = Ingress } = Rates, - ack_rates = #rates { timestamp = AckTimestamp, - egress = AckEgress, - ingress = AckIngress } = ARates, - in_counter = InCount, - out_counter = OutCount, - ack_in_counter = AckInCount, - ack_out_counter = AckOutCount, - ram_msg_count = RamMsgCount, - ram_msg_count_prev = RamMsgCountPrev, - ram_ack_index = RamAckIndex, - ram_ack_count_prev = RamAckCountPrev }) -> - Now = now(), - {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), - {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), - - {AvgAckEgressRate, AckEgress1} = - update_rate(Now, AckTimestamp, AckOutCount, AckEgress), - {AvgAckIngressRate, AckIngress1} = - update_rate(Now, AckTimestamp, AckInCount, AckIngress), - - RamAckCount = gb_trees:size(RamAckIndex), - - Duration = %% msgs+acks / (msgs+acks/sec) == sec - case (AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso - AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0) of - true -> infinity; - false -> (RamMsgCountPrev + RamMsgCount + - RamAckCount + RamAckCountPrev) / - (4 * (AvgEgressRate + AvgIngressRate + - AvgAckEgressRate + AvgAckIngressRate)) - end, - - {Duration, State #vqstate { - rates = Rates #rates { - egress = Egress1, - ingress = Ingress1, - avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate, - timestamp = Now }, - ack_rates = ARates #rates { - egress = AckEgress1, - ingress = AckIngress1, - avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate, - timestamp = Now }, - in_counter = 0, - out_counter = 0, - ack_in_counter = 0, - ack_out_counter = 0, - ram_msg_count_prev = RamMsgCount, - ram_ack_count_prev = RamAckCount }}. - -needs_idle_timeout(State = #vqstate { on_sync = OnSync }) -> - case {OnSync, needs_index_sync(State)} of - {?BLANK_SYNC, false} -> - {Res, _State} = reduce_memory_use( - fun (_Quota, State1) -> {0, State1} end, - fun (_Quota, State1) -> State1 end, - fun (State1) -> State1 end, - fun (_Quota, State1) -> {0, State1} end, - State), - Res; - _ -> - true - end. - -idle_timeout(State) -> - a(reduce_memory_use(confirm_commit_index(tx_commit_index(State)))). - -handle_pre_hibernate(State = #vqstate { index_state = IndexState }) -> - State #vqstate { index_state = rabbit_queue_index:flush(IndexState) }. - -status(#vqstate { - q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - pending_ack = PA, - ram_ack_index = RAI, - on_sync = #sync { funs = From }, - target_ram_count = TargetRamCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, - next_seq_id = NextSeqId, - persistent_count = PersistentCount, - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate } }) -> - [ {q1 , queue:len(Q1)}, - {q2 , bpqueue:len(Q2)}, - {delta , Delta}, - {q3 , bpqueue:len(Q3)}, - {q4 , queue:len(Q4)}, - {len , Len}, - {pending_acks , dict:size(PA)}, - {outstanding_txns , length(From)}, - {target_ram_count , TargetRamCount}, - {ram_msg_count , RamMsgCount}, - {ram_ack_count , gb_trees:size(RAI)}, - {ram_index_count , RamIndexCount}, - {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount}, - {avg_ingress_rate , AvgIngressRate}, - {avg_egress_rate , AvgEgressRate}, - {avg_ack_ingress_rate, AvgAckIngressRate}, - {avg_ack_egress_rate , AvgAckEgressRate} ]. - -%%---------------------------------------------------------------------------- -%% Minor helpers -%%---------------------------------------------------------------------------- - -a(State = #vqstate { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - persistent_count = PersistentCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }) -> - E1 = queue:is_empty(Q1), - E2 = bpqueue:is_empty(Q2), - ED = Delta#delta.count == 0, - E3 = bpqueue:is_empty(Q3), - E4 = queue:is_empty(Q4), - LZ = Len == 0, - - true = E1 or not E3, - true = E2 or not ED, - true = ED or not E3, - true = LZ == (E3 and E4), - - true = Len >= 0, - true = PersistentCount >= 0, - true = RamMsgCount >= 0, - true = RamIndexCount >= 0, - - State. - -m(MsgStatus = #msg_status { msg = Msg, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }) -> - true = (not IsPersistent) or IndexOnDisk, - true = (not IndexOnDisk) or MsgOnDisk, - true = (Msg =/= undefined) or MsgOnDisk, - - MsgStatus. - -one_if(true ) -> 1; -one_if(false) -> 0. - -cons_if(true, E, L) -> [E | L]; -cons_if(false, _E, L) -> L. - -gb_sets_maybe_insert(false, _Val, Set) -> Set; -%% when requeueing, we re-add a msg_id to the unconfirmed set -gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). - -msg_status(IsPersistent, SeqId, Msg = #basic_message { id = MsgId }, - MsgProps) -> - #msg_status { seq_id = SeqId, msg_id = MsgId, msg = Msg, - is_persistent = IsPersistent, is_delivered = false, - msg_on_disk = false, index_on_disk = false, - msg_props = MsgProps }. - -with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> - {Result, MSCStateP1} = Fun(MSCStateP), - {Result, {MSCStateP1, MSCStateT}}; -with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> - {Result, MSCStateT1} = Fun(MSCStateT), - {Result, {MSCStateP, MSCStateT1}}. - -with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> - {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, - fun (MSCState1) -> - {Fun(MSCState1), MSCState1} - end), - Res. - -msg_store_client_init(MsgStore, MsgOnDiskFun, Callback) -> - msg_store_client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun, Callback). - -msg_store_client_init(MsgStore, Ref, MsgOnDiskFun, Callback) -> - CloseFDsFun = msg_store_close_fds_fun(MsgStore =:= ?PERSISTENT_MSG_STORE), - rabbit_msg_store:client_init( - MsgStore, Ref, MsgOnDiskFun, fun () -> Callback(CloseFDsFun) end). - -msg_store_write(MSCState, IsPersistent, MsgId, Msg) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:write(MsgId, Msg, MSCState1) end). - -msg_store_read(MSCState, IsPersistent, MsgId) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:read(MsgId, MSCState1) end). - -msg_store_remove(MSCState, IsPersistent, MsgIds) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:remove(MsgIds, MCSState1) end). - -msg_store_sync(MSCState, IsPersistent, MsgIds, Fun) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:sync(MsgIds, Fun, MSCState1) end). - -msg_store_close_fds(MSCState, IsPersistent) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:close_all_indicated(MSCState1) end). - -msg_store_close_fds_fun(IsPersistent) -> - fun (State = #vqstate { msg_store_clients = MSCState }) -> - {ok, MSCState1} = msg_store_close_fds(MSCState, IsPersistent), - State #vqstate { msg_store_clients = MSCState1 } - end. - -maybe_write_delivered(false, _SeqId, IndexState) -> - IndexState; -maybe_write_delivered(true, SeqId, IndexState) -> - rabbit_queue_index:deliver([SeqId], IndexState). - -lookup_tx(Txn) -> case get({txn, Txn}) of - undefined -> #tx { pending_messages = [], - pending_acks = [] }; - V -> V - end. - -store_tx(Txn, Tx) -> put({txn, Txn}, Tx). - -erase_tx(Txn) -> erase({txn, Txn}). - -persistent_msg_ids(Pubs) -> - [MsgId || {#basic_message { id = MsgId, - is_persistent = true }, _MsgProps} <- Pubs]. - -betas_from_index_entries(List, TransientThreshold, IndexState) -> - {Filtered, Delivers, Acks} = - lists:foldr( - fun ({MsgId, SeqId, MsgProps, IsPersistent, IsDelivered}, - {Filtered1, Delivers1, Acks1}) -> - case SeqId < TransientThreshold andalso not IsPersistent of - true -> {Filtered1, - cons_if(not IsDelivered, SeqId, Delivers1), - [SeqId | Acks1]}; - false -> {[m(#msg_status { msg = undefined, - msg_id = MsgId, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true, - msg_props = MsgProps - }) | Filtered1], - Delivers1, - Acks1} - end - end, {[], [], []}, List), - {bpqueue:from_list([{true, Filtered}]), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -%% the first arg is the older delta -combine_deltas(?BLANK_DELTA_PATTERN(X), ?BLANK_DELTA_PATTERN(Y)) -> - ?BLANK_DELTA; -combine_deltas(?BLANK_DELTA_PATTERN(X), #delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = B) -> - true = Start + Count =< End, %% ASSERTION - B; -combine_deltas(#delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = A, ?BLANK_DELTA_PATTERN(Y)) -> - true = Start + Count =< End, %% ASSERTION - A; -combine_deltas(#delta { start_seq_id = StartLow, - count = CountLow, - end_seq_id = EndLow }, - #delta { start_seq_id = StartHigh, - count = CountHigh, - end_seq_id = EndHigh }) -> - Count = CountLow + CountHigh, - true = (StartLow =< StartHigh) %% ASSERTIONS - andalso ((StartLow + CountLow) =< EndLow) - andalso ((StartHigh + CountHigh) =< EndHigh) - andalso ((StartLow + Count) =< EndHigh), - #delta { start_seq_id = StartLow, count = Count, end_seq_id = EndHigh }. - -beta_fold(Fun, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). - -update_rate(Now, Then, Count, {OThen, OCount}) -> - %% avg over the current period and the previous - {1000000.0 * (Count + OCount) / timer:now_diff(Now, OThen), {Then, Count}}. - -%%---------------------------------------------------------------------------- -%% Internal major helpers for Public API -%%---------------------------------------------------------------------------- - -init(IsDurable, IndexState, DeltaCount, Terms, - AsyncCallback, SyncCallback, PersistentClient, TransientClient) -> - {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), - - DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), - Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of - true -> ?BLANK_DELTA; - false -> #delta { start_seq_id = LowSeqId, - count = DeltaCount1, - end_seq_id = NextSeqId } - end, - Now = now(), - State = #vqstate { - q1 = queue:new(), - q2 = bpqueue:new(), - delta = Delta, - q3 = bpqueue:new(), - q4 = queue:new(), - next_seq_id = NextSeqId, - pending_ack = dict:new(), - ram_ack_index = gb_trees:empty(), - index_state = IndexState1, - msg_store_clients = {PersistentClient, TransientClient}, - on_sync = ?BLANK_SYNC, - durable = IsDurable, - transient_threshold = NextSeqId, - - async_callback = AsyncCallback, - sync_callback = SyncCallback, - - len = DeltaCount1, - persistent_count = DeltaCount1, - - target_ram_count = infinity, - ram_msg_count = 0, - ram_msg_count_prev = 0, - ram_ack_count_prev = 0, - ram_index_count = 0, - out_counter = 0, - in_counter = 0, - rates = blank_rate(Now, DeltaCount1), - msgs_on_disk = gb_sets:new(), - msg_indices_on_disk = gb_sets:new(), - unconfirmed = gb_sets:new(), - confirmed = gb_sets:new(), - ack_out_counter = 0, - ack_in_counter = 0, - ack_rates = blank_rate(Now, 0) }, - a(maybe_deltas_to_betas(State)). - -blank_rate(Timestamp, IngressLength) -> - #rates { egress = {Timestamp, 0}, - ingress = {Timestamp, IngressLength}, - avg_egress = 0.0, - avg_ingress = 0.0, - timestamp = Timestamp }. - -msg_store_callback(PersistentMsgIds, Pubs, AckTags, Fun, MsgPropsFun, - AsyncCallback, SyncCallback) -> - case SyncCallback(fun (StateN) -> - tx_commit_post_msg_store(true, Pubs, AckTags, - Fun, MsgPropsFun, StateN) - end) of - ok -> ok; - error -> remove_persistent_messages(PersistentMsgIds, AsyncCallback) - end. - -remove_persistent_messages(MsgIds, AsyncCallback) -> - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, - undefined, AsyncCallback), - ok = rabbit_msg_store:remove(MsgIds, PersistentClient), - rabbit_msg_store:client_delete_and_terminate(PersistentClient). - -tx_commit_post_msg_store(HasPersistentPubs, Pubs, AckTags, Fun, MsgPropsFun, - State = #vqstate { - on_sync = OnSync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - pending_ack = PA, - durable = IsDurable }) -> - PersistentAcks = - case IsDurable of - true -> [AckTag || AckTag <- AckTags, - case dict:fetch(AckTag, PA) of - #msg_status {} -> - false; - {IsPersistent, _MsgId, _MsgProps} -> - IsPersistent - end]; - false -> [] - end, - case IsDurable andalso (HasPersistentPubs orelse PersistentAcks =/= []) of - true -> State #vqstate { - on_sync = #sync { - acks_persistent = [PersistentAcks | SPAcks], - acks_all = [AckTags | SAcks], - pubs = [{MsgPropsFun, Pubs} | SPubs], - funs = [Fun | SFuns] }}; - false -> State1 = tx_commit_index( - State #vqstate { - on_sync = #sync { - acks_persistent = [], - acks_all = [AckTags], - pubs = [{MsgPropsFun, Pubs}], - funs = [Fun] } }), - State1 #vqstate { on_sync = OnSync } - end. - -tx_commit_index(State = #vqstate { on_sync = ?BLANK_SYNC }) -> - State; -tx_commit_index(State = #vqstate { on_sync = #sync { - acks_persistent = SPAcks, - acks_all = SAcks, - pubs = SPubs, - funs = SFuns }, - durable = IsDurable }) -> - PAcks = lists:append(SPAcks), - Acks = lists:append(SAcks), - Pubs = [{Msg, Fun(MsgProps)} || {Fun, PubsN} <- lists:reverse(SPubs), - {Msg, MsgProps} <- lists:reverse(PubsN)], - {SeqIds, State1 = #vqstate { index_state = IndexState }} = - lists:foldl( - fun ({Msg = #basic_message { is_persistent = IsPersistent }, - MsgProps}, - {SeqIdsAcc, State2}) -> - IsPersistent1 = IsDurable andalso IsPersistent, - {SeqId, State3} = - publish(Msg, MsgProps, false, IsPersistent1, State2), - {cons_if(IsPersistent1, SeqId, SeqIdsAcc), State3} - end, {PAcks, ack(Acks, State)}, Pubs), - IndexState1 = rabbit_queue_index:sync(SeqIds, IndexState), - [ Fun() || Fun <- lists:reverse(SFuns) ], - reduce_memory_use( - State1 #vqstate { index_state = IndexState1, on_sync = ?BLANK_SYNC }). - -purge_betas_and_deltas(LensByStore, - State = #vqstate { q3 = Q3, - index_state = IndexState, - msg_store_clients = MSCState }) -> - case bpqueue:is_empty(Q3) of - true -> {LensByStore, State}; - false -> {LensByStore1, IndexState1} = - remove_queue_entries(fun beta_fold/3, Q3, - LensByStore, IndexState, MSCState), - purge_betas_and_deltas(LensByStore1, - maybe_deltas_to_betas( - State #vqstate { - q3 = bpqueue:new(), - index_state = IndexState1 })) - end. - -remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> - {MsgIdsByStore, Delivers, Acks} = - Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), - ok = orddict:fold(fun (IsPersistent, MsgIds, ok) -> - msg_store_remove(MSCState, IsPersistent, MsgIds) - end, ok, MsgIdsByStore), - {sum_msg_ids_by_store_to_len(LensByStore, MsgIdsByStore), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -remove_queue_entries1( - #msg_status { msg_id = MsgId, seq_id = SeqId, - is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, - {MsgIdsByStore, Delivers, Acks}) -> - {case MsgOnDisk of - true -> rabbit_misc:orddict_cons(IsPersistent, MsgId, MsgIdsByStore); - false -> MsgIdsByStore - end, - cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), - cons_if(IndexOnDisk, SeqId, Acks)}. - -sum_msg_ids_by_store_to_len(LensByStore, MsgIdsByStore) -> - orddict:fold( - fun (IsPersistent, MsgIds, LensByStore1) -> - orddict:update_counter(IsPersistent, length(MsgIds), LensByStore1) - end, LensByStore, MsgIdsByStore). - -%%---------------------------------------------------------------------------- -%% Internal gubbins for publishing -%%---------------------------------------------------------------------------- - -publish(Msg = #basic_message { is_persistent = IsPersistent, id = MsgId }, - MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, MsgOnDisk, - State = #vqstate { q1 = Q1, q3 = Q3, q4 = Q4, - next_seq_id = SeqId, - len = Len, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - ram_msg_count = RamMsgCount, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = case bpqueue:is_empty(Q3) of - false -> State1 #vqstate { q1 = queue:in(m(MsgStatus1), Q1) }; - true -> State1 #vqstate { q4 = queue:in(m(MsgStatus1), Q4) } - end, - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, MsgId, UC), - {SeqId, State2 #vqstate { next_seq_id = SeqId + 1, - len = Len + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - ram_msg_count = RamMsgCount + 1, - unconfirmed = UC1 }}. - -maybe_write_msg_to_disk(_Force, MsgStatus = #msg_status { - msg_on_disk = true }, _MSCState) -> - MsgStatus; -maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { - msg = Msg, msg_id = MsgId, - is_persistent = IsPersistent }, MSCState) - when Force orelse IsPersistent -> - Msg1 = Msg #basic_message { - %% don't persist any recoverable decoded properties - content = rabbit_binary_parser:clear_decoded_content( - Msg #basic_message.content)}, - ok = msg_store_write(MSCState, IsPersistent, MsgId, Msg1), - MsgStatus #msg_status { msg_on_disk = true }; -maybe_write_msg_to_disk(_Force, MsgStatus, _MSCState) -> - MsgStatus. - -maybe_write_index_to_disk(_Force, MsgStatus = #msg_status { - index_on_disk = true }, IndexState) -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - {MsgStatus, IndexState}; -maybe_write_index_to_disk(Force, MsgStatus = #msg_status { - msg_id = MsgId, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_props = MsgProps}, IndexState) - when Force orelse IsPersistent -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - IndexState1 = rabbit_queue_index:publish( - MsgId, SeqId, MsgProps, IsPersistent, IndexState), - {MsgStatus #msg_status { index_on_disk = true }, - maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; -maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> - {MsgStatus, IndexState}. - -maybe_write_to_disk(ForceMsg, ForceIndex, MsgStatus, - State = #vqstate { index_state = IndexState, - msg_store_clients = MSCState }) -> - MsgStatus1 = maybe_write_msg_to_disk(ForceMsg, MsgStatus, MSCState), - {MsgStatus2, IndexState1} = - maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), - {MsgStatus2, State #vqstate { index_state = IndexState1 }}. - -%%---------------------------------------------------------------------------- -%% Internal gubbins for acks -%%---------------------------------------------------------------------------- - -record_pending_ack(#msg_status { seq_id = SeqId, - msg_id = MsgId, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - msg_props = MsgProps } = MsgStatus, - State = #vqstate { pending_ack = PA, - ram_ack_index = RAI, - ack_in_counter = AckInCount}) -> - {AckEntry, RAI1} = - case MsgOnDisk of - true -> {{IsPersistent, MsgId, MsgProps}, RAI}; - false -> {MsgStatus, gb_trees:insert(SeqId, MsgId, RAI)} - end, - PA1 = dict:store(SeqId, AckEntry, PA), - State #vqstate { pending_ack = PA1, - ram_ack_index = RAI1, - ack_in_counter = AckInCount + 1}. - -remove_pending_ack(KeepPersistent, - State = #vqstate { pending_ack = PA, - index_state = IndexState, - msg_store_clients = MSCState }) -> - {PersistentSeqIds, MsgIdsByStore} = - dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - State1 = State #vqstate { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, - case KeepPersistent of - true -> case orddict:find(false, MsgIdsByStore) of - error -> State1; - {ok, MsgIds} -> ok = msg_store_remove(MSCState, false, - MsgIds), - State1 - end; - false -> IndexState1 = - rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = msg_store_remove(MSCState, IsPersistent, MsgIds) - || {IsPersistent, MsgIds} <- orddict:to_list(MsgIdsByStore)], - State1 #vqstate { index_state = IndexState1 } - end. - -ack(_MsgStoreFun, _Fun, [], State) -> - State; -ack(MsgStoreFun, Fun, AckTags, State) -> - {{PersistentSeqIds, MsgIdsByStore}, - State1 = #vqstate { index_state = IndexState, - msg_store_clients = MSCState, - persistent_count = PCount, - ack_out_counter = AckOutCount }} = - lists:foldl( - fun (SeqId, {Acc, State2 = #vqstate { pending_ack = PA, - ram_ack_index = RAI }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, State2 #vqstate { - pending_ack = dict:erase(SeqId, PA), - ram_ack_index = - gb_trees:delete_any(SeqId, RAI)})} - end, {accumulate_ack_init(), State}, AckTags), - IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = MsgStoreFun(MSCState, IsPersistent, MsgIds) - || {IsPersistent, MsgIds} <- orddict:to_list(MsgIdsByStore)], - PCount1 = PCount - find_persistent_count(sum_msg_ids_by_store_to_len( - orddict:new(), MsgIdsByStore)), - State1 #vqstate { index_state = IndexState1, - persistent_count = PCount1, - ack_out_counter = AckOutCount + length(AckTags) }. - -accumulate_ack_init() -> {[], orddict:new()}. - -accumulate_ack(_SeqId, #msg_status { is_persistent = false, %% ASSERTIONS - msg_on_disk = false, - index_on_disk = false }, - {PersistentSeqIdsAcc, MsgIdsByStore}) -> - {PersistentSeqIdsAcc, MsgIdsByStore}; -accumulate_ack(SeqId, {IsPersistent, MsgId, _MsgProps}, - {PersistentSeqIdsAcc, MsgIdsByStore}) -> - {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), - rabbit_misc:orddict_cons(IsPersistent, MsgId, MsgIdsByStore)}. - -find_persistent_count(LensByStore) -> - case orddict:find(true, LensByStore) of - error -> 0; - {ok, Len} -> Len - end. - -%%---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%%---------------------------------------------------------------------------- - -confirm_commit_index(State = #vqstate { index_state = IndexState }) -> - case needs_index_sync(State) of - true -> State #vqstate { - index_state = rabbit_queue_index:sync(IndexState) }; - false -> State - end. - -record_confirms(MsgIdSet, State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC, - confirmed = C }) -> - State #vqstate { msgs_on_disk = gb_sets:difference(MOD, MsgIdSet), - msg_indices_on_disk = gb_sets:difference(MIOD, MsgIdSet), - unconfirmed = gb_sets:difference(UC, MsgIdSet), - confirmed = gb_sets:union (C, MsgIdSet) }. - -needs_index_sync(#vqstate { msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - %% If UC is empty then by definition, MIOD and MOD are also empty - %% and there's nothing that can be pending a sync. - - %% If UC is not empty, then we want to find is_empty(UC - MIOD), - %% but the subtraction can be expensive. Thus instead, we test to - %% see if UC is a subset of MIOD. This can only be the case if - %% MIOD == UC, which would indicate that every message in UC is - %% also in MIOD and is thus _all_ pending on a msg_store sync, not - %% on a qi sync. Thus the negation of this is sufficient. Because - %% is_subset is short circuiting, this is more efficient than the - %% subtraction. - not (gb_sets:is_empty(UC) orelse gb_sets:is_subset(UC, MIOD)). - -blind_confirm(Callback, MsgIdSet) -> - Callback(fun (State) -> record_confirms(MsgIdSet, State) end). - -msgs_written_to_disk(Callback, MsgIdSet, removed) -> - blind_confirm(Callback, MsgIdSet); -msgs_written_to_disk(Callback, MsgIdSet, written) -> - Callback(fun (State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - Confirmed = gb_sets:intersection(UC, MsgIdSet), - record_confirms(gb_sets:intersection(MsgIdSet, MIOD), - State #vqstate { - msgs_on_disk = - gb_sets:union(MOD, Confirmed) }) - end). - -msg_indices_written_to_disk(Callback, MsgIdSet) -> - Callback(fun (State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - Confirmed = gb_sets:intersection(UC, MsgIdSet), - record_confirms(gb_sets:intersection(MsgIdSet, MOD), - State #vqstate { - msg_indices_on_disk = - gb_sets:union(MIOD, Confirmed) }) - end). - -%%---------------------------------------------------------------------------- -%% Phase changes -%%---------------------------------------------------------------------------- - -%% Determine whether a reduction in memory use is necessary, and call -%% functions to perform the required phase changes. The function can -%% also be used to just do the former, by passing in dummy phase -%% change functions. -%% -%% The function does not report on any needed beta->delta conversions, -%% though the conversion function for that is called as necessary. The -%% reason is twofold. Firstly, this is safe because the conversion is -%% only ever necessary just after a transition to a -%% target_ram_count of zero or after an incremental alpha->beta -%% conversion. In the former case the conversion is performed straight -%% away (i.e. any betas present at the time are converted to deltas), -%% and in the latter case the need for a conversion is flagged up -%% anyway. Secondly, this is necessary because we do not have a -%% precise and cheap predicate for determining whether a beta->delta -%% conversion is necessary - due to the complexities of retaining up -%% one segment's worth of messages in q3 - and thus would risk -%% perpetually reporting the need for a conversion when no such -%% conversion is needed. That in turn could cause an infinite loop. -reduce_memory_use(_AlphaBetaFun, _BetaGammaFun, _BetaDeltaFun, _AckFun, - State = #vqstate {target_ram_count = infinity}) -> - {false, State}; -reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, - State = #vqstate { - ram_ack_index = RamAckIndex, - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount, - rates = #rates { avg_ingress = AvgIngress, - avg_egress = AvgEgress }, - ack_rates = #rates { avg_ingress = AvgAckIngress, - avg_egress = AvgAckEgress } - }) -> - - {Reduce, State1} = - case chunk_size(RamMsgCount + gb_trees:size(RamAckIndex), - TargetRamCount) of - 0 -> {false, State}; - %% Reduce memory of pending acks and alphas. The order is - %% determined based on which is growing faster. Whichever - %% comes second may very well get a quota of 0 if the - %% first manages to push out the max number of messages. - S1 -> {_, State2} = - lists:foldl(fun (ReduceFun, {QuotaN, StateN}) -> - ReduceFun(QuotaN, StateN) - end, - {S1, State}, - case (AvgAckIngress - AvgAckEgress) > - (AvgIngress - AvgEgress) of - true -> [AckFun, AlphaBetaFun]; - false -> [AlphaBetaFun, AckFun] - end), - {true, State2} - end, - - case State1 #vqstate.target_ram_count of - 0 -> {Reduce, BetaDeltaFun(State1)}; - _ -> case chunk_size(State1 #vqstate.ram_index_count, - permitted_ram_index_count(State1)) of - ?IO_BATCH_SIZE = S2 -> {true, BetaGammaFun(S2, State1)}; - _ -> {Reduce, State1} - end - end. - -limit_ram_acks(0, State) -> - {0, State}; -limit_ram_acks(Quota, State = #vqstate { pending_ack = PA, - ram_ack_index = RAI }) -> - case gb_trees:is_empty(RAI) of - true -> - {Quota, State}; - false -> - {SeqId, MsgId, RAI1} = gb_trees:take_largest(RAI), - MsgStatus = #msg_status { - msg_id = MsgId, %% ASSERTION - is_persistent = false, %% ASSERTION - msg_props = MsgProps } = dict:fetch(SeqId, PA), - {_, State1} = maybe_write_to_disk(true, false, MsgStatus, State), - PA1 = dict:store(SeqId, {false, MsgId, MsgProps}, PA), - limit_ram_acks(Quota - 1, - State1 #vqstate { pending_ack = PA1, - ram_ack_index = RAI1 }) - end. - - -reduce_memory_use(State) -> - {_, State1} = reduce_memory_use(fun push_alphas_to_betas/2, - fun limit_ram_index/2, - fun push_betas_to_deltas/1, - fun limit_ram_acks/2, - State), - State1. - -limit_ram_index(Quota, State = #vqstate { q2 = Q2, q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Q2a, {Quota1, IndexState1}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q2, {Quota, IndexState}), - %% TODO: we shouldn't be writing index entries for messages that - %% can never end up in delta due them residing in the only segment - %% held by q3. - {Q3a, {Quota2, IndexState2}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q3, {Quota1, IndexState1}), - State #vqstate { q2 = Q2a, q3 = Q3a, - index_state = IndexState2, - ram_index_count = RamIndexCount - (Quota - Quota2) }. - -limit_ram_index(_MapFoldFilterFun, Q, {0, IndexState}) -> - {Q, {0, IndexState}}; -limit_ram_index(MapFoldFilterFun, Q, {Quota, IndexState}) -> - MapFoldFilterFun( - fun erlang:'not'/1, - fun (MsgStatus, {0, _IndexStateN}) -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - stop; - (MsgStatus, {N, IndexStateN}) when N > 0 -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - {MsgStatus1, IndexStateN1} = - maybe_write_index_to_disk(true, MsgStatus, IndexStateN), - {true, m(MsgStatus1), {N-1, IndexStateN1}} - end, {Quota, IndexState}, Q). - -permitted_ram_index_count(#vqstate { len = 0 }) -> - infinity; -permitted_ram_index_count(#vqstate { len = Len, - q2 = Q2, - q3 = Q3, - delta = #delta { count = DeltaCount } }) -> - BetaLen = bpqueue:len(Q2) + bpqueue:len(Q3), - BetaLen - trunc(BetaLen * BetaLen / (Len - DeltaCount)). - -chunk_size(Current, Permitted) - when Permitted =:= infinity orelse Permitted >= Current -> - 0; -chunk_size(Current, Permitted) -> - lists:min([Current - Permitted, ?IO_BATCH_SIZE]). - -fetch_from_q3(State = #vqstate { - q1 = Q1, - q2 = Q2, - delta = #delta { count = DeltaCount }, - q3 = Q3, - q4 = Q4, - ram_index_count = RamIndexCount}) -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - {empty, State}; - {{value, IndexOnDisk, MsgStatus}, Q3a} -> - RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), - true = RamIndexCount1 >= 0, %% ASSERTION - State1 = State #vqstate { q3 = Q3a, - ram_index_count = RamIndexCount1 }, - State2 = - case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of - {true, true} -> - %% q3 is now empty, it wasn't before; delta is - %% still empty. So q2 must be empty, and we - %% know q4 is empty otherwise we wouldn't be - %% loading from q3. As such, we can just set - %% q4 to Q1. - true = bpqueue:is_empty(Q2), %% ASSERTION - true = queue:is_empty(Q4), %% ASSERTION - State1 #vqstate { q1 = queue:new(), - q4 = Q1 }; - {true, false} -> - maybe_deltas_to_betas(State1); - {false, _} -> - %% q3 still isn't empty, we've not touched - %% delta, so the invariants between q1, q2, - %% delta and q3 are maintained - State1 - end, - {loaded, {MsgStatus, State2}} - end. - -maybe_deltas_to_betas(State = #vqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> - State; -maybe_deltas_to_betas(State = #vqstate { - q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - transient_threshold = TransientThreshold }) -> - #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = DeltaSeqIdEnd } = Delta, - DeltaSeqId1 = - lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), - DeltaSeqIdEnd]), - {List, IndexState1} = - rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), - {Q3a, IndexState2} = - betas_from_index_entries(List, TransientThreshold, IndexState1), - State1 = State #vqstate { index_state = IndexState2 }, - case bpqueue:len(Q3a) of - 0 -> - %% we ignored every message in the segment due to it being - %% transient and below the threshold - maybe_deltas_to_betas( - State1 #vqstate { - delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); - Q3aLen -> - Q3b = bpqueue:join(Q3, Q3a), - case DeltaCount - Q3aLen of - 0 -> - %% delta is now empty, but it wasn't before, so - %% can now join q2 onto q3 - State1 #vqstate { q2 = bpqueue:new(), - delta = ?BLANK_DELTA, - q3 = bpqueue:join(Q3b, Q2) }; - N when N > 0 -> - Delta1 = #delta { start_seq_id = DeltaSeqId1, - count = N, - end_seq_id = DeltaSeqIdEnd }, - State1 #vqstate { delta = Delta1, - q3 = Q3b } - end - end. - -push_alphas_to_betas(Quota, State) -> - {Quota1, State1} = maybe_push_q1_to_betas(Quota, State), - {Quota2, State2} = maybe_push_q4_to_betas(Quota1, State1), - {Quota2, State2}. - -maybe_push_q1_to_betas(Quota, State = #vqstate { q1 = Q1 }) -> - maybe_push_alphas_to_betas( - fun queue:out/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q3 = Q3, delta = #delta { count = 0 } }) -> - State1 #vqstate { q1 = Q1a, - q3 = bpqueue:in(IndexOnDisk, MsgStatus, Q3) }; - (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q2 = Q2 }) -> - State1 #vqstate { q1 = Q1a, - q2 = bpqueue:in(IndexOnDisk, MsgStatus, Q2) } - end, Quota, Q1, State). - -maybe_push_q4_to_betas(Quota, State = #vqstate { q4 = Q4 }) -> - maybe_push_alphas_to_betas( - fun queue:out_r/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q4a, State1 = #vqstate { q3 = Q3 }) -> - State1 #vqstate { q3 = bpqueue:in_r(IndexOnDisk, MsgStatus, Q3), - q4 = Q4a } - end, Quota, Q4, State). - -maybe_push_alphas_to_betas(_Generator, _Consumer, Quota, _Q, - State = #vqstate { - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount }) - when Quota =:= 0 orelse - TargetRamCount =:= infinity orelse - TargetRamCount >= RamMsgCount -> - {Quota, State}; -maybe_push_alphas_to_betas(Generator, Consumer, Quota, Q, State) -> - case Generator(Q) of - {empty, _Q} -> - {Quota, State}; - {{value, MsgStatus}, Qa} -> - {MsgStatus1 = #msg_status { msg_on_disk = true, - index_on_disk = IndexOnDisk }, - State1 = #vqstate { ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }} = - maybe_write_to_disk(true, false, MsgStatus, State), - MsgStatus2 = m(MsgStatus1 #msg_status { msg = undefined }), - RamIndexCount1 = RamIndexCount + one_if(not IndexOnDisk), - State2 = State1 #vqstate { ram_msg_count = RamMsgCount - 1, - ram_index_count = RamIndexCount1 }, - maybe_push_alphas_to_betas(Generator, Consumer, Quota - 1, Qa, - Consumer(MsgStatus2, Qa, State2)) - end. - -push_betas_to_deltas(State = #vqstate { q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Delta2, Q2a, RamIndexCount2, IndexState2} = - push_betas_to_deltas(fun (Q2MinSeqId) -> Q2MinSeqId end, - fun bpqueue:out/1, Q2, - RamIndexCount, IndexState), - {Delta3, Q3a, RamIndexCount3, IndexState3} = - push_betas_to_deltas(fun rabbit_queue_index:next_segment_boundary/1, - fun bpqueue:out_r/1, Q3, - RamIndexCount2, IndexState2), - Delta4 = combine_deltas(Delta3, combine_deltas(Delta, Delta2)), - State #vqstate { q2 = Q2a, - delta = Delta4, - q3 = Q3a, - index_state = IndexState3, - ram_index_count = RamIndexCount3 }. - -push_betas_to_deltas(LimitFun, Generator, Q, RamIndexCount, IndexState) -> - case bpqueue:out(Q) of - {empty, _Q} -> - {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk1, #msg_status { seq_id = MinSeqId }}, _Qa} -> - {{value, _IndexOnDisk2, #msg_status { seq_id = MaxSeqId }}, _Qb} = - bpqueue:out_r(Q), - Limit = LimitFun(MinSeqId), - case MaxSeqId < Limit of - true -> {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - false -> {Len, Qc, RamIndexCount1, IndexState1} = - push_betas_to_deltas(Generator, Limit, Q, 0, - RamIndexCount, IndexState), - {#delta { start_seq_id = Limit, - count = Len, - end_seq_id = MaxSeqId + 1 }, - Qc, RamIndexCount1, IndexState1} - end - end. - -push_betas_to_deltas(Generator, Limit, Q, Count, RamIndexCount, IndexState) -> - case Generator(Q) of - {empty, _Q} -> - {Count, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk, #msg_status { seq_id = SeqId }}, _Qa} - when SeqId < Limit -> - {Count, Q, RamIndexCount, IndexState}; - {{value, IndexOnDisk, MsgStatus}, Qa} -> - {RamIndexCount1, IndexState1} = - case IndexOnDisk of - true -> {RamIndexCount, IndexState}; - false -> {#msg_status { index_on_disk = true }, - IndexState2} = - maybe_write_index_to_disk(true, MsgStatus, - IndexState), - {RamIndexCount - 1, IndexState2} - end, - push_betas_to_deltas( - Generator, Limit, Qa, Count + 1, RamIndexCount1, IndexState1) - end. - -%%---------------------------------------------------------------------------- -%% Upgrading -%%---------------------------------------------------------------------------- - -multiple_routing_keys() -> - transform_storage( - fun ({basic_message, ExchangeName, Routing_Key, Content, - MsgId, Persistent}) -> - {ok, {basic_message, ExchangeName, [Routing_Key], Content, - MsgId, Persistent}}; - (_) -> {error, corrupt_message} - end), - ok. - - -%% Assumes message store is not running -transform_storage(TransformFun) -> - transform_store(?PERSISTENT_MSG_STORE, TransformFun), - transform_store(?TRANSIENT_MSG_STORE, TransformFun). - -transform_store(Store, TransformFun) -> - rabbit_msg_store:force_recovery(rabbit_mnesia:dir(), Store), - rabbit_msg_store:transform_dir(rabbit_mnesia:dir(), Store, TransformFun). diff --git a/src/rabbit_version.erl b/src/rabbit_version.erl deleted file mode 100644 index 400abc10..00000000 --- a/src/rabbit_version.erl +++ /dev/null @@ -1,172 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_version). - --export([recorded/0, matches/2, desired/0, desired_for_scope/1, - record_desired/0, record_desired_for_scope/1, - upgrades_required/1]). - -%% ------------------------------------------------------------------- --ifdef(use_specs). - --export_type([scope/0, step/0]). - --type(scope() :: atom()). --type(scope_version() :: [atom()]). --type(step() :: {atom(), atom()}). - --type(version() :: [atom()]). - --spec(recorded/0 :: () -> rabbit_types:ok_or_error2(version(), any())). --spec(matches/2 :: ([A], [A]) -> boolean()). --spec(desired/0 :: () -> version()). --spec(desired_for_scope/1 :: (scope()) -> scope_version()). --spec(record_desired/0 :: () -> 'ok'). --spec(record_desired_for_scope/1 :: - (scope()) -> rabbit_types:ok_or_error(any())). --spec(upgrades_required/1 :: - (scope()) -> rabbit_types:ok_or_error2([step()], any())). - --endif. -%% ------------------------------------------------------------------- - --define(VERSION_FILENAME, "schema_version"). --define(SCOPES, [mnesia, local]). - -%% ------------------------------------------------------------------- - -recorded() -> case rabbit_misc:read_term_file(schema_filename()) of - {ok, [V]} -> {ok, V}; - {error, _} = Err -> Err - end. - -record(V) -> ok = rabbit_misc:write_term_file(schema_filename(), [V]). - -recorded_for_scope(Scope) -> - case recorded() of - {error, _} = Err -> - Err; - {ok, Version} -> - {ok, case lists:keysearch(Scope, 1, categorise_by_scope(Version)) of - false -> []; - {value, {Scope, SV1}} -> SV1 - end} - end. - -record_for_scope(Scope, ScopeVersion) -> - case recorded() of - {error, _} = Err -> - Err; - {ok, Version} -> - Version1 = lists:keystore(Scope, 1, categorise_by_scope(Version), - {Scope, ScopeVersion}), - ok = record([Name || {_Scope, Names} <- Version1, Name <- Names]) - end. - -%% ------------------------------------------------------------------- - -matches(VerA, VerB) -> - lists:usort(VerA) =:= lists:usort(VerB). - -%% ------------------------------------------------------------------- - -desired() -> [Name || Scope <- ?SCOPES, Name <- desired_for_scope(Scope)]. - -desired_for_scope(Scope) -> with_upgrade_graph(fun heads/1, Scope). - -record_desired() -> record(desired()). - -record_desired_for_scope(Scope) -> - record_for_scope(Scope, desired_for_scope(Scope)). - -upgrades_required(Scope) -> - case recorded_for_scope(Scope) of - {error, enoent} -> - {error, version_not_available}; - {ok, CurrentHeads} -> - with_upgrade_graph( - fun (G) -> - case unknown_heads(CurrentHeads, G) of - [] -> {ok, upgrades_to_apply(CurrentHeads, G)}; - Unknown -> {error, {future_upgrades_found, Unknown}} - end - end, Scope) - end. - -%% ------------------------------------------------------------------- - -with_upgrade_graph(Fun, Scope) -> - case rabbit_misc:build_acyclic_graph( - fun (Module, Steps) -> vertices(Module, Steps, Scope) end, - fun (Module, Steps) -> edges(Module, Steps, Scope) end, - rabbit_misc:all_module_attributes(rabbit_upgrade)) of - {ok, G} -> try - Fun(G) - after - true = digraph:delete(G) - end; - {error, {vertex, duplicate, StepName}} -> - throw({error, {duplicate_upgrade_step, StepName}}); - {error, {edge, {bad_vertex, StepName}, _From, _To}} -> - throw({error, {dependency_on_unknown_upgrade_step, StepName}}); - {error, {edge, {bad_edge, StepNames}, _From, _To}} -> - throw({error, {cycle_in_upgrade_steps, StepNames}}) - end. - -vertices(Module, Steps, Scope0) -> - [{StepName, {Module, StepName}} || {StepName, Scope1, _Reqs} <- Steps, - Scope0 == Scope1]. - -edges(_Module, Steps, Scope0) -> - [{Require, StepName} || {StepName, Scope1, Requires} <- Steps, - Require <- Requires, - Scope0 == Scope1]. -unknown_heads(Heads, G) -> - [H || H <- Heads, digraph:vertex(G, H) =:= false]. - -upgrades_to_apply(Heads, G) -> - %% Take all the vertices which can reach the known heads. That's - %% everything we've already applied. Subtract that from all - %% vertices: that's what we have to apply. - Unsorted = sets:to_list( - sets:subtract( - sets:from_list(digraph:vertices(G)), - sets:from_list(digraph_utils:reaching(Heads, G)))), - %% Form a subgraph from that list and find a topological ordering - %% so we can invoke them in order. - [element(2, digraph:vertex(G, StepName)) || - StepName <- digraph_utils:topsort(digraph_utils:subgraph(G, Unsorted))]. - -heads(G) -> - lists:sort([V || V <- digraph:vertices(G), digraph:out_degree(G, V) =:= 0]). - -%% ------------------------------------------------------------------- - -categorise_by_scope(Version) when is_list(Version) -> - Categorised = - [{Scope, Name} || {_Module, Attributes} <- - rabbit_misc:all_module_attributes(rabbit_upgrade), - {Name, Scope, _Requires} <- Attributes, - lists:member(Name, Version)], - orddict:to_list( - lists:foldl(fun ({Scope, Name}, CatVersion) -> - rabbit_misc:orddict_cons(Scope, Name, CatVersion) - end, orddict:new(), Categorised)). - -dir() -> rabbit_mnesia:dir(). - -schema_filename() -> filename:join(dir(), ?VERSION_FILENAME). diff --git a/src/rabbit_vhost.erl b/src/rabbit_vhost.erl deleted file mode 100644 index 24c130ed..00000000 --- a/src/rabbit_vhost.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_vhost). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --export([add/1, delete/1, exists/1, list/0, with/2]). - --ifdef(use_specs). - --spec(add/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(delete/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(exists/1 :: (rabbit_types:vhost()) -> boolean()). --spec(list/0 :: () -> [rabbit_types:vhost()]). --spec(with/2 :: (rabbit_types:vhost(), rabbit_misc:thunk(A)) -> A). - --endif. - -%%---------------------------------------------------------------------------- - -add(VHostPath) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_vhost, VHostPath}) of - [] -> ok = mnesia:write(rabbit_vhost, - #vhost{virtual_host = VHostPath}, - write); - [_] -> mnesia:abort({vhost_already_exists, VHostPath}) - end - end, - fun (ok, true) -> - ok; - (ok, false) -> - [rabbit_exchange:declare( - rabbit_misc:r(VHostPath, exchange, Name), - Type, true, false, false, []) || - {Name,Type} <- - [{<<"">>, direct}, - {<<"amq.direct">>, direct}, - {<<"amq.topic">>, topic}, - {<<"amq.match">>, headers}, %% per 0-9-1 pdf - {<<"amq.headers">>, headers}, %% per 0-9-1 xml - {<<"amq.fanout">>, fanout}]], - ok - end), - rabbit_log:info("Added vhost ~p~n", [VHostPath]), - R. - -delete(VHostPath) -> - %% FIXME: We are forced to delete the queues and exchanges outside - %% the TX below. Queue deletion involves sending messages to the queue - %% process, which in turn results in further mnesia actions and - %% eventually the termination of that process. Exchange deletion causes - %% notifications which must be sent outside the TX - [{ok,_} = rabbit_amqqueue:delete(Q, false, false) || - Q <- rabbit_amqqueue:list(VHostPath)], - [ok = rabbit_exchange:delete(Name, false) || - #exchange{name = Name} <- rabbit_exchange:list(VHostPath)], - R = rabbit_misc:execute_mnesia_transaction( - with(VHostPath, fun () -> - ok = internal_delete(VHostPath) - end)), - rabbit_log:info("Deleted vhost ~p~n", [VHostPath]), - R. - -internal_delete(VHostPath) -> - lists:foreach( - fun ({Username, _, _, _}) -> - ok = rabbit_auth_backend_internal:clear_permissions(Username, - VHostPath) - end, - rabbit_auth_backend_internal:list_vhost_permissions(VHostPath)), - ok = mnesia:delete({rabbit_vhost, VHostPath}), - ok. - -exists(VHostPath) -> - mnesia:dirty_read({rabbit_vhost, VHostPath}) /= []. - -list() -> - mnesia:dirty_all_keys(rabbit_vhost). - -with(VHostPath, Thunk) -> - fun () -> - case mnesia:read({rabbit_vhost, VHostPath}) of - [] -> - mnesia:abort({no_such_vhost, VHostPath}); - [_V] -> - Thunk() - end - end. diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl deleted file mode 100644 index ac3434d2..00000000 --- a/src/rabbit_writer.erl +++ /dev/null @@ -1,249 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_writer). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([start/5, start_link/5, mainloop/2, mainloop1/2]). --export([send_command/2, send_command/3, - send_command_sync/2, send_command_sync/3, - send_command_and_notify/4, send_command_and_notify/5]). --export([internal_send_command/4, internal_send_command/6]). - --record(wstate, {sock, channel, frame_max, protocol}). - --define(HIBERNATE_AFTER, 5000). - -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(start_link/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(send_command/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_sync/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command_sync/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_and_notify/4 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record()) - -> 'ok'). --spec(send_command_and_notify/5 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record(), - rabbit_types:content()) - -> 'ok'). --spec(internal_send_command/4 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:protocol()) - -> 'ok'). --spec(internal_send_command/6 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> 'ok'). - --endif. - -%%--------------------------------------------------------------------------- - -start(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -start_link(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn_link(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -mainloop(ReaderPid, State) -> - try - mainloop1(ReaderPid, State) - catch - exit:Error -> ReaderPid ! {channel_exit, #wstate.channel, Error} - end, - done. - -mainloop1(ReaderPid, State) -> - receive - Message -> ?MODULE:mainloop1(ReaderPid, handle_message(Message, State)) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, mainloop, [ReaderPid, State]) - end. - -handle_message({send_command, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - State; -handle_message({send_command, MethodRecord, Content}, State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord}}, State) -> - ok = internal_send_command_async(MethodRecord, State), - gen_server:reply(From, ok), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord, Content}}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - gen_server:reply(From, ok), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord, Content}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({inet_reply, _, ok}, State) -> - State; -handle_message({inet_reply, _, Status}, _State) -> - exit({writer, send_failed, Status}); -handle_message(Message, _State) -> - exit({writer, message_not_understood, Message}). - -%%--------------------------------------------------------------------------- - -send_command(W, MethodRecord) -> - W ! {send_command, MethodRecord}, - ok. - -send_command(W, MethodRecord, Content) -> - W ! {send_command, MethodRecord, Content}, - ok. - -send_command_sync(W, MethodRecord) -> - call(W, {send_command_sync, MethodRecord}). - -send_command_sync(W, MethodRecord, Content) -> - call(W, {send_command_sync, MethodRecord, Content}). - -send_command_and_notify(W, Q, ChPid, MethodRecord) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord}, - ok. - -send_command_and_notify(W, Q, ChPid, MethodRecord, Content) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord, Content}, - ok. - -%%--------------------------------------------------------------------------- - -call(Pid, Msg) -> - {ok, Res} = gen:call(Pid, '$gen_call', Msg, infinity), - Res. - -%%--------------------------------------------------------------------------- - -assemble_frame(Channel, MethodRecord, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, none), - rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol). - -assemble_frames(Channel, MethodRecord, Content, FrameMax, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, Content), - MethodName = rabbit_misc:method_record_type(MethodRecord), - true = Protocol:method_has_content(MethodName), % assertion - MethodFrame = rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol), - ContentFrames = rabbit_binary_generator:build_simple_content_frames( - Channel, Content, FrameMax, Protocol), - [MethodFrame | ContentFrames]. - -%% We optimise delivery of small messages. Content-bearing methods -%% require at least three frames. Small messages always fit into -%% that. We hand their frames to the Erlang network functions in one -%% go, which may lead to somewhat more efficient processing in the -%% runtime and a greater chance of coalescing into fewer TCP packets. -%% -%% By contrast, for larger messages, split across many frames, we want -%% to allow interleaving of frames on different channels. Hence we -%% hand them to the Erlang network functions one frame at a time. -send_frames(Fun, Sock, Frames) when length(Frames) =< 3 -> - Fun(Sock, Frames); -send_frames(Fun, Sock, Frames) -> - lists:foldl(fun (Frame, ok) -> Fun(Sock, Frame); - (_Frame, Other) -> Other - end, ok, Frames). - -tcp_send(Sock, Data) -> - rabbit_misc:throw_on_error(inet_error, - fun () -> rabbit_net:send(Sock, Data) end). - -internal_send_command(Sock, Channel, MethodRecord, Protocol) -> - ok = tcp_send(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command(Sock, Channel, MethodRecord, Content, FrameMax, - Protocol) -> - ok = send_frames(fun tcp_send/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -%% gen_tcp:send/2 does a selective receive of {inet_reply, Sock, -%% Status} to obtain the result. That is bad when it is called from -%% the writer since it requires scanning of the writers possibly quite -%% large message queue. -%% -%% So instead we lift the code from prim_inet:send/2, which is what -%% gen_tcp:send/2 calls, do the first half here and then just process -%% the result code in handle_message/2 as and when it arrives. -%% -%% This means we may end up happily sending data down a closed/broken -%% socket, but that's ok since a) data in the buffers will be lost in -%% any case (so qualitatively we are no worse off than if we used -%% gen_tcp:send/2), and b) we do detect the changed socket status -%% eventually, i.e. when we get round to handling the result code. -%% -%% Also note that the port has bounded buffers and port_command blocks -%% when these are full. So the fact that we process the result -%% asynchronously does not impact flow control. -internal_send_command_async(MethodRecord, - #wstate{sock = Sock, - channel = Channel, - protocol = Protocol}) -> - ok = port_cmd(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command_async(MethodRecord, Content, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}) -> - ok = send_frames(fun port_cmd/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -port_cmd(Sock, Data) -> - true = try rabbit_net:port_command(Sock, Data) - catch error:Error -> exit({writer, send_failed, Error}) - end, - ok. diff --git a/src/supervisor2.erl b/src/supervisor2.erl deleted file mode 100644 index 1a240856..00000000 --- a/src/supervisor2.erl +++ /dev/null @@ -1,1015 +0,0 @@ -%% This file is a copy of supervisor.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is supervisor2 -%% -%% 2) there is a new strategy called -%% simple_one_for_one_terminate. This is exactly the same as for -%% simple_one_for_one, except that children *are* explicitly -%% terminated as per the shutdown component of the child_spec. -%% -%% 3) child specifications can contain, as the restart type, a tuple -%% {permanent, Delay} | {transient, Delay} where Delay >= 0. The -%% delay, in seconds, indicates what should happen if a child, upon -%% being restarted, exceeds the MaxT and MaxR parameters. Thus, if -%% a child exits, it is restarted as normal. If it exits -%% sufficiently quickly and often to exceed the boundaries set by -%% the MaxT and MaxR parameters, and a Delay is specified, then -%% rather than stopping the supervisor, the supervisor instead -%% continues and tries to start up the child again, Delay seconds -%% later. -%% -%% Note that you can never restart more frequently than the MaxT -%% and MaxR parameters allow: i.e. you must wait until *both* the -%% Delay has passed *and* the MaxT and MaxR parameters allow the -%% child to be restarted. -%% -%% Also note that the Delay is a *minimum*. There is no guarantee -%% that the child will be restarted within that time, especially if -%% other processes are dying and being restarted at the same time - -%% essentially we have to wait for the delay to have passed and for -%% the MaxT and MaxR parameters to permit the child to be -%% restarted. This may require waiting for longer than Delay. -%% -%% 4) Added an 'intrinsic' restart type. Like the transient type, this -%% type means the child should only be restarted if the child exits -%% abnormally. Unlike the transient type, if the child exits -%% normally, the supervisor itself also exits normally. If the -%% child is a supervisor and it exits normally (i.e. with reason of -%% 'shutdown') then the child's parent also exits normally. -%% -%% All modifications are (C) 2010-2011 VMware, Inc. -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(supervisor2). - --behaviour(gen_server). - -%% External exports --export([start_link/2,start_link/3, - start_child/2, restart_child/2, - delete_child/2, terminate_child/2, - which_children/1, find_child/2, - check_childspecs/1]). - --export([behaviour_info/1]). - -%% Internal exports --export([init/1, handle_call/3, handle_info/2, terminate/2, code_change/3]). --export([handle_cast/2]). --export([delayed_restart/2]). - --define(DICT, dict). - --record(state, {name, - strategy, - children = [], - dynamics = ?DICT:new(), - intensity, - period, - restarts = [], - module, - args}). - --record(child, {pid = undefined, % pid is undefined when child is not running - name, - mfa, - restart_type, - shutdown, - child_type, - modules = []}). - --define(is_simple(State), State#state.strategy =:= simple_one_for_one orelse - State#state.strategy =:= simple_one_for_one_terminate). --define(is_terminate_simple(State), - State#state.strategy =:= simple_one_for_one_terminate). - -behaviour_info(callbacks) -> - [{init,1}]; -behaviour_info(_Other) -> - undefined. - -%%% --------------------------------------------------- -%%% This is a general process supervisor built upon gen_server.erl. -%%% Servers/processes should/could also be built using gen_server.erl. -%%% SupName = {local, atom()} | {global, atom()}. -%%% --------------------------------------------------- -start_link(Mod, Args) -> - gen_server:start_link(?MODULE, {self, Mod, Args}, []). - -start_link(SupName, Mod, Args) -> - gen_server:start_link(SupName, ?MODULE, {SupName, Mod, Args}, []). - -%%% --------------------------------------------------- -%%% Interface functions. -%%% --------------------------------------------------- -start_child(Supervisor, ChildSpec) -> - call(Supervisor, {start_child, ChildSpec}). - -restart_child(Supervisor, Name) -> - call(Supervisor, {restart_child, Name}). - -delete_child(Supervisor, Name) -> - call(Supervisor, {delete_child, Name}). - -%%----------------------------------------------------------------- -%% Func: terminate_child/2 -%% Returns: ok | {error, Reason} -%% Note that the child is *always* terminated in some -%% way (maybe killed). -%%----------------------------------------------------------------- -terminate_child(Supervisor, Name) -> - call(Supervisor, {terminate_child, Name}). - -which_children(Supervisor) -> - call(Supervisor, which_children). - -find_child(Supervisor, Name) -> - [Pid || {Name1, Pid, _Type, _Modules} <- which_children(Supervisor), - Name1 =:= Name]. - -call(Supervisor, Req) -> - gen_server:call(Supervisor, Req, infinity). - -check_childspecs(ChildSpecs) when is_list(ChildSpecs) -> - case check_startspec(ChildSpecs) of - {ok, _} -> ok; - Error -> {error, Error} - end; -check_childspecs(X) -> {error, {badarg, X}}. - -delayed_restart(Supervisor, RestartDetails) -> - gen_server:cast(Supervisor, {delayed_restart, RestartDetails}). - -%%% --------------------------------------------------- -%%% -%%% Initialize the supervisor. -%%% -%%% --------------------------------------------------- -init({SupName, Mod, Args}) -> - process_flag(trap_exit, true), - case Mod:init(Args) of - {ok, {SupFlags, StartSpec}} -> - case init_state(SupName, SupFlags, Mod, Args) of - {ok, State} when ?is_simple(State) -> - init_dynamic(State, StartSpec); - {ok, State} -> - init_children(State, StartSpec); - Error -> - {stop, {supervisor_data, Error}} - end; - ignore -> - ignore; - Error -> - {stop, {bad_return, {Mod, init, Error}}} - end. - -init_children(State, StartSpec) -> - SupName = State#state.name, - case check_startspec(StartSpec) of - {ok, Children} -> - case start_children(Children, SupName) of - {ok, NChildren} -> - {ok, State#state{children = NChildren}}; - {error, NChildren} -> - terminate_children(NChildren, SupName), - {stop, shutdown} - end; - Error -> - {stop, {start_spec, Error}} - end. - -init_dynamic(State, [StartSpec]) -> - case check_startspec([StartSpec]) of - {ok, Children} -> - {ok, State#state{children = Children}}; - Error -> - {stop, {start_spec, Error}} - end; -init_dynamic(_State, StartSpec) -> - {stop, {bad_start_spec, StartSpec}}. - -%%----------------------------------------------------------------- -%% Func: start_children/2 -%% Args: Children = [#child] in start order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Purpose: Start all children. The new list contains #child's -%% with pids. -%% Returns: {ok, NChildren} | {error, NChildren} -%% NChildren = [#child] in termination order (reversed -%% start order) -%%----------------------------------------------------------------- -start_children(Children, SupName) -> start_children(Children, [], SupName). - -start_children([Child|Chs], NChildren, SupName) -> - case do_start_child(SupName, Child) of - {ok, Pid} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {ok, Pid, _Extra} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {error, Reason} -> - report_error(start_error, Reason, Child, SupName), - {error, lists:reverse(Chs) ++ [Child | NChildren]} - end; -start_children([], NChildren, _SupName) -> - {ok, NChildren}. - -do_start_child(SupName, Child) -> - #child{mfa = {M, F, A}} = Child, - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, What} -> {error, What}; - What -> {error, What} - end. - -do_start_child_i(M, F, A) -> - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, Error} -> - {error, Error}; - What -> - {error, What} - end. - - -%%% --------------------------------------------------- -%%% -%%% Callback functions. -%%% -%%% --------------------------------------------------- -handle_call({start_child, EArgs}, _From, State) when ?is_simple(State) -> - #child{mfa = {M, F, A}} = hd(State#state.children), - Args = A ++ EArgs, - case do_start_child_i(M, F, Args) of - {ok, Pid} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid, Extra}, NState}; - What -> - {reply, What, State} - end; - -%%% The requests terminate_child, delete_child and restart_child are -%%% invalid for simple_one_for_one and simple_one_for_one_terminate -%%% supervisors. -handle_call({_Req, _Data}, _From, State) when ?is_simple(State) -> - {reply, {error, State#state.strategy}, State}; - -handle_call({start_child, ChildSpec}, _From, State) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - {Resp, NState} = handle_start_child(Child, State), - {reply, Resp, NState}; - What -> - {reply, {error, What}, State} - end; - -handle_call({restart_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid, Extra}, NState}; - Error -> - {reply, Error, State} - end; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({delete_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - NState = remove_child(Child, State), - {reply, ok, NState}; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({terminate_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} -> - NChild = do_terminate(Child, State#state.name), - {reply, ok, replace_child(NChild, State)}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call(which_children, _From, State) when ?is_simple(State) -> - [#child{child_type = CT, modules = Mods}] = State#state.children, - Reply = lists:map(fun ({Pid, _}) -> {undefined, Pid, CT, Mods} end, - ?DICT:to_list(State#state.dynamics)), - {reply, Reply, State}; - -handle_call(which_children, _From, State) -> - Resp = - lists:map(fun (#child{pid = Pid, name = Name, - child_type = ChildType, modules = Mods}) -> - {Name, Pid, ChildType, Mods} - end, - State#state.children), - {reply, Resp, State}. - - -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) - when ?is_simple(State) -> - {ok, NState} = do_restart(RestartType, Reason, Child, State), - {noreply, NState}; -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) -> - case get_child(Child#child.name, State) of - {value, Child1} -> - {ok, NState} = do_restart(RestartType, Reason, Child1, State), - {noreply, NState}; - _ -> - {noreply, State} - end; - -%%% Hopefully cause a function-clause as there is no API function -%%% that utilizes cast. -handle_cast(null, State) -> - error_logger:error_msg("ERROR: Supervisor received cast-message 'null'~n", - []), - - {noreply, State}. - -%% -%% Take care of terminated children. -%% -handle_info({'EXIT', Pid, Reason}, State) -> - case restart_child(Pid, Reason, State) of - {ok, State1} -> - {noreply, State1}; - {shutdown, State1} -> - {stop, shutdown, State1} - end; - -handle_info(Msg, State) -> - error_logger:error_msg("Supervisor received unexpected message: ~p~n", - [Msg]), - {noreply, State}. -%% -%% Terminate this server. -%% -terminate(_Reason, State) when ?is_terminate_simple(State) -> - terminate_simple_children( - hd(State#state.children), State#state.dynamics, State#state.name), - ok; -terminate(_Reason, State) -> - terminate_children(State#state.children, State#state.name), - ok. - -%% -%% Change code for the supervisor. -%% Call the new call-back module and fetch the new start specification. -%% Combine the new spec. with the old. If the new start spec. is -%% not valid the code change will not succeed. -%% Use the old Args as argument to Module:init/1. -%% NOTE: This requires that the init function of the call-back module -%% does not have any side effects. -%% -code_change(_, State, _) -> - case (State#state.module):init(State#state.args) of - {ok, {SupFlags, StartSpec}} -> - case catch check_flags(SupFlags) of - ok -> - {Strategy, MaxIntensity, Period} = SupFlags, - update_childspec(State#state{strategy = Strategy, - intensity = MaxIntensity, - period = Period}, - StartSpec); - Error -> - {error, Error} - end; - ignore -> - {ok, State}; - Error -> - Error - end. - -check_flags({Strategy, MaxIntensity, Period}) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - ok; -check_flags(What) -> - {bad_flags, What}. - -update_childspec(State, StartSpec) when ?is_simple(State) -> - case check_startspec(StartSpec) of - {ok, [Child]} -> - {ok, State#state{children = [Child]}}; - Error -> - {error, Error} - end; - -update_childspec(State, StartSpec) -> - case check_startspec(StartSpec) of - {ok, Children} -> - OldC = State#state.children, % In reverse start order ! - NewC = update_childspec1(OldC, Children, []), - {ok, State#state{children = NewC}}; - Error -> - {error, Error} - end. - -update_childspec1([Child|OldC], Children, KeepOld) -> - case update_chsp(Child, Children) of - {ok,NewChildren} -> - update_childspec1(OldC, NewChildren, KeepOld); - false -> - update_childspec1(OldC, Children, [Child|KeepOld]) - end; -update_childspec1([], Children, KeepOld) -> - % Return them in (keeped) reverse start order. - lists:reverse(Children ++ KeepOld). - -update_chsp(OldCh, Children) -> - case lists:map(fun (Ch) when OldCh#child.name =:= Ch#child.name -> - Ch#child{pid = OldCh#child.pid}; - (Ch) -> - Ch - end, - Children) of - Children -> - false; % OldCh not found in new spec. - NewC -> - {ok, NewC} - end. - -%%% --------------------------------------------------- -%%% Start a new child. -%%% --------------------------------------------------- - -handle_start_child(Child, State) -> - case get_child(Child#child.name, State) of - false -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - Children = State#state.children, - {{ok, Pid}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {ok, Pid, Extra} -> - Children = State#state.children, - {{ok, Pid, Extra}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {error, What} -> - {{error, {What, Child}}, State} - end; - {value, OldChild} when OldChild#child.pid =/= undefined -> - {{error, {already_started, OldChild#child.pid}}, State}; - {value, _OldChild} -> - {{error, already_present}, State} - end. - -%%% --------------------------------------------------- -%%% Restart. A process has terminated. -%%% Returns: {ok, #state} | {shutdown, #state} -%%% --------------------------------------------------- - -restart_child(Pid, Reason, State) when ?is_simple(State) -> - case ?DICT:find(Pid, State#state.dynamics) of - {ok, Args} -> - [Child] = State#state.children, - RestartType = Child#child.restart_type, - {M, F, _} = Child#child.mfa, - NChild = Child#child{pid = Pid, mfa = {M, F, Args}}, - do_restart(RestartType, Reason, NChild, State); - error -> - {ok, State} - end; -restart_child(Pid, Reason, State) -> - Children = State#state.children, - case lists:keysearch(Pid, #child.pid, Children) of - {value, Child} -> - RestartType = Child#child.restart_type, - do_restart(RestartType, Reason, Child, State); - _ -> - {ok, State} - end. - -do_restart({RestartType, Delay}, Reason, Child, State) -> - case restart1(Child, State) of - {ok, NState} -> - {ok, NState}; - {terminate, NState} -> - {ok, _TRef} = timer:apply_after( - trunc(Delay*1000), ?MODULE, delayed_restart, - [self(), {{RestartType, Delay}, Reason, Child}]), - {ok, state_del_child(Child, NState)} - end; -do_restart(permanent, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(intrinsic, normal, Child, State) -> - {shutdown, state_del_child(Child, State)}; -do_restart(intrinsic, shutdown, Child = #child{child_type = supervisor}, - State) -> - {shutdown, state_del_child(Child, State)}; -do_restart(_, normal, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(_, shutdown, Child, State) -> - NState = state_del_child(Child, State), - {ok, NState}; -do_restart(Type, Reason, Child, State) when Type =:= transient orelse - Type =:= intrinsic -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(temporary, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - NState = state_del_child(Child, State), - {ok, NState}. - -restart(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart/2); - {terminate, NState} -> - report_error(shutdown, reached_max_restart_intensity, - Child, State#state.name), - {shutdown, state_del_child(Child, NState)} - end. - -restart1(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart1/2); - {terminate, _NState} -> - %% we've reached the max restart intensity, but the - %% add_restart will have added to the restarts - %% field. Given we don't want to die here, we need to go - %% back to the old restarts field otherwise we'll never - %% attempt to restart later. - {terminate, State} - end. - -restart(Strategy, Child, State, Restart) - when Strategy =:= simple_one_for_one orelse - Strategy =:= simple_one_for_one_terminate -> - #child{mfa = {M, F, A}} = Child, - Dynamics = ?DICT:erase(Child#child.pid, State#state.dynamics), - case do_start_child_i(M, F, A) of - {ok, Pid} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {ok, Pid, _Extra} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {error, Error} -> - report_error(start_error, Error, Child, State#state.name), - Restart(Child, State) - end; -restart(one_for_one, Child, State, Restart) -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {ok, Pid, _Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {error, Reason} -> - report_error(start_error, Reason, Child, State#state.name), - Restart(Child, State) - end; -restart(rest_for_one, Child, State, Restart) -> - {ChAfter, ChBefore} = split_child(Child#child.pid, State#state.children), - ChAfter2 = terminate_children(ChAfter, State#state.name), - case start_children(ChAfter2, State#state.name) of - {ok, ChAfter3} -> - {ok, State#state{children = ChAfter3 ++ ChBefore}}; - {error, ChAfter3} -> - Restart(Child, State#state{children = ChAfter3 ++ ChBefore}) - end; -restart(one_for_all, Child, State, Restart) -> - Children1 = del_child(Child#child.pid, State#state.children), - Children2 = terminate_children(Children1, State#state.name), - case start_children(Children2, State#state.name) of - {ok, NChs} -> - {ok, State#state{children = NChs}}; - {error, NChs} -> - Restart(Child, State#state{children = NChs}) - end. - -%%----------------------------------------------------------------- -%% Func: terminate_children/2 -%% Args: Children = [#child] in termination order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Returns: NChildren = [#child] in -%% startup order (reversed termination order) -%%----------------------------------------------------------------- -terminate_children(Children, SupName) -> - terminate_children(Children, SupName, []). - -terminate_children([Child | Children], SupName, Res) -> - NChild = do_terminate(Child, SupName), - terminate_children(Children, SupName, [NChild | Res]); -terminate_children([], _SupName, Res) -> - Res. - -terminate_simple_children(Child, Dynamics, SupName) -> - dict:fold(fun (Pid, _Args, _Any) -> - do_terminate(Child#child{pid = Pid}, SupName) - end, ok, Dynamics), - ok. - -do_terminate(Child, SupName) when Child#child.pid =/= undefined -> - ReportError = fun (Reason) -> - report_error(shutdown_error, Reason, Child, SupName) - end, - case shutdown(Child#child.pid, Child#child.shutdown) of - ok -> - ok; - {error, normal} -> - case Child#child.restart_type of - permanent -> ReportError(normal); - {permanent, _Delay} -> ReportError(normal); - _ -> ok - end; - {error, OtherReason} -> - ReportError(OtherReason) - end, - Child#child{pid = undefined}; -do_terminate(Child, _SupName) -> - Child. - -%%----------------------------------------------------------------- -%% Shutdowns a child. We must check the EXIT value -%% of the child, because it might have died with another reason than -%% the wanted. In that case we want to report the error. We put a -%% monitor on the child an check for the 'DOWN' message instead of -%% checking for the 'EXIT' message, because if we check the 'EXIT' -%% message a "naughty" child, who does unlink(Sup), could hang the -%% supervisor. -%% Returns: ok | {error, OtherReason} (this should be reported) -%%----------------------------------------------------------------- -shutdown(Pid, brutal_kill) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, kill), - receive - {'DOWN', _MRef, process, Pid, killed} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end; - {error, Reason} -> - {error, Reason} - end; - -shutdown(Pid, Time) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, shutdown), %% Try to shutdown gracefully - receive - {'DOWN', _MRef, process, Pid, shutdown} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - after Time -> - exit(Pid, kill), %% Force termination. - receive - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end - end; - {error, Reason} -> - {error, Reason} - end. - -%% Help function to shutdown/2 switches from link to monitor approach -monitor_child(Pid) -> - - %% Do the monitor operation first so that if the child dies - %% before the monitoring is done causing a 'DOWN'-message with - %% reason noproc, we will get the real reason in the 'EXIT'-message - %% unless a naughty child has already done unlink... - erlang:monitor(process, Pid), - unlink(Pid), - - receive - %% If the child dies before the unlik we must empty - %% the mail-box of the 'EXIT'-message and the 'DOWN'-message. - {'EXIT', Pid, Reason} -> - receive - {'DOWN', _, process, Pid, _} -> - {error, Reason} - end - after 0 -> - %% If a naughty child did unlink and the child dies before - %% monitor the result will be that shutdown/2 receives a - %% 'DOWN'-message with reason noproc. - %% If the child should die after the unlink there - %% will be a 'DOWN'-message with a correct reason - %% that will be handled in shutdown/2. - ok - end. - - -%%----------------------------------------------------------------- -%% Child/State manipulating functions. -%%----------------------------------------------------------------- -state_del_child(#child{pid = Pid}, State) when ?is_simple(State) -> - NDynamics = ?DICT:erase(Pid, State#state.dynamics), - State#state{dynamics = NDynamics}; -state_del_child(Child, State) -> - NChildren = del_child(Child#child.name, State#state.children), - State#state{children = NChildren}. - -del_child(Name, [Ch|Chs]) when Ch#child.name =:= Name -> - [Ch#child{pid = undefined} | Chs]; -del_child(Pid, [Ch|Chs]) when Ch#child.pid =:= Pid -> - [Ch#child{pid = undefined} | Chs]; -del_child(Name, [Ch|Chs]) -> - [Ch|del_child(Name, Chs)]; -del_child(_, []) -> - []. - -%% Chs = [S4, S3, Ch, S1, S0] -%% Ret: {[S4, S3, Ch], [S1, S0]} -split_child(Name, Chs) -> - split_child(Name, Chs, []). - -split_child(Name, [Ch|Chs], After) when Ch#child.name =:= Name -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Pid, [Ch|Chs], After) when Ch#child.pid =:= Pid -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Name, [Ch|Chs], After) -> - split_child(Name, Chs, [Ch | After]); -split_child(_, [], After) -> - {lists:reverse(After), []}. - -get_child(Name, State) -> - lists:keysearch(Name, #child.name, State#state.children). -replace_child(Child, State) -> - Chs = do_replace_child(Child, State#state.children), - State#state{children = Chs}. - -do_replace_child(Child, [Ch|Chs]) when Ch#child.name =:= Child#child.name -> - [Child | Chs]; -do_replace_child(Child, [Ch|Chs]) -> - [Ch|do_replace_child(Child, Chs)]. - -remove_child(Child, State) -> - Chs = lists:keydelete(Child#child.name, #child.name, State#state.children), - State#state{children = Chs}. - -%%----------------------------------------------------------------- -%% Func: init_state/4 -%% Args: SupName = {local, atom()} | {global, atom()} | self -%% Type = {Strategy, MaxIntensity, Period} -%% Strategy = one_for_one | one_for_all | simple_one_for_one | -%% rest_for_one -%% MaxIntensity = integer() -%% Period = integer() -%% Mod :== atom() -%% Arsg :== term() -%% Purpose: Check that Type is of correct type (!) -%% Returns: {ok, #state} | Error -%%----------------------------------------------------------------- -init_state(SupName, Type, Mod, Args) -> - case catch init_state1(SupName, Type, Mod, Args) of - {ok, State} -> - {ok, State}; - Error -> - Error - end. - -init_state1(SupName, {Strategy, MaxIntensity, Period}, Mod, Args) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - {ok, #state{name = supname(SupName,Mod), - strategy = Strategy, - intensity = MaxIntensity, - period = Period, - module = Mod, - args = Args}}; -init_state1(_SupName, Type, _, _) -> - {invalid_type, Type}. - -validStrategy(simple_one_for_one_terminate) -> true; -validStrategy(simple_one_for_one) -> true; -validStrategy(one_for_one) -> true; -validStrategy(one_for_all) -> true; -validStrategy(rest_for_one) -> true; -validStrategy(What) -> throw({invalid_strategy, What}). - -validIntensity(Max) when is_integer(Max), - Max >= 0 -> true; -validIntensity(What) -> throw({invalid_intensity, What}). - -validPeriod(Period) when is_integer(Period), - Period > 0 -> true; -validPeriod(What) -> throw({invalid_period, What}). - -supname(self,Mod) -> {self(),Mod}; -supname(N,_) -> N. - -%%% ------------------------------------------------------ -%%% Check that the children start specification is valid. -%%% Shall be a six (6) tuple -%%% {Name, Func, RestartType, Shutdown, ChildType, Modules} -%%% where Name is an atom -%%% Func is {Mod, Fun, Args} == {atom, atom, list} -%%% RestartType is permanent | temporary | transient | -%%% intrinsic | {permanent, Delay} | -%%% {transient, Delay} where Delay >= 0 -%%% Shutdown = integer() | infinity | brutal_kill -%%% ChildType = supervisor | worker -%%% Modules = [atom()] | dynamic -%%% Returns: {ok, [#child]} | Error -%%% ------------------------------------------------------ - -check_startspec(Children) -> check_startspec(Children, []). - -check_startspec([ChildSpec|T], Res) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - case lists:keymember(Child#child.name, #child.name, Res) of - true -> {duplicate_child_name, Child#child.name}; - false -> check_startspec(T, [Child | Res]) - end; - Error -> Error - end; -check_startspec([], Res) -> - {ok, lists:reverse(Res)}. - -check_childspec({Name, Func, RestartType, Shutdown, ChildType, Mods}) -> - catch check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods); -check_childspec(X) -> {invalid_child_spec, X}. - -check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods) -> - validName(Name), - validFunc(Func), - validRestartType(RestartType), - validChildType(ChildType), - validShutdown(Shutdown, ChildType), - validMods(Mods), - {ok, #child{name = Name, mfa = Func, restart_type = RestartType, - shutdown = Shutdown, child_type = ChildType, modules = Mods}}. - -validChildType(supervisor) -> true; -validChildType(worker) -> true; -validChildType(What) -> throw({invalid_child_type, What}). - -validName(_Name) -> true. - -validFunc({M, F, A}) when is_atom(M), - is_atom(F), - is_list(A) -> true; -validFunc(Func) -> throw({invalid_mfa, Func}). - -validRestartType(permanent) -> true; -validRestartType(temporary) -> true; -validRestartType(transient) -> true; -validRestartType(intrinsic) -> true; -validRestartType({permanent, Delay}) -> validDelay(Delay); -validRestartType({transient, Delay}) -> validDelay(Delay); -validRestartType(RestartType) -> throw({invalid_restart_type, - RestartType}). - -validDelay(Delay) when is_number(Delay), - Delay >= 0 -> true; -validDelay(What) -> throw({invalid_delay, What}). - -validShutdown(Shutdown, _) - when is_integer(Shutdown), Shutdown > 0 -> true; -validShutdown(infinity, supervisor) -> true; -validShutdown(brutal_kill, _) -> true; -validShutdown(Shutdown, _) -> throw({invalid_shutdown, Shutdown}). - -validMods(dynamic) -> true; -validMods(Mods) when is_list(Mods) -> - lists:foreach(fun (Mod) -> - if - is_atom(Mod) -> ok; - true -> throw({invalid_module, Mod}) - end - end, - Mods); -validMods(Mods) -> throw({invalid_modules, Mods}). - -%%% ------------------------------------------------------ -%%% Add a new restart and calculate if the max restart -%%% intensity has been reached (in that case the supervisor -%%% shall terminate). -%%% All restarts accured inside the period amount of seconds -%%% are kept in the #state.restarts list. -%%% Returns: {ok, State'} | {terminate, State'} -%%% ------------------------------------------------------ - -add_restart(State) -> - I = State#state.intensity, - P = State#state.period, - R = State#state.restarts, - Now = erlang:now(), - R1 = add_restart([Now|R], Now, P), - State1 = State#state{restarts = R1}, - case length(R1) of - CurI when CurI =< I -> - {ok, State1}; - _ -> - {terminate, State1} - end. - -add_restart([R|Restarts], Now, Period) -> - case inPeriod(R, Now, Period) of - true -> - [R|add_restart(Restarts, Now, Period)]; - _ -> - [] - end; -add_restart([], _, _) -> - []. - -inPeriod(Time, Now, Period) -> - case difference(Time, Now) of - T when T > Period -> - false; - _ -> - true - end. - -%% -%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored) -%% Calculate the time elapsed in seconds between two timestamps. -%% If MegaSecs is equal just subtract Secs. -%% Else calculate the Mega difference and add the Secs difference, -%% note that Secs difference can be negative, e.g. -%% {827, 999999, 676} diff {828, 1, 653753} == > 2 secs. -%% -difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM -> - ((CurM - TimeM) * 1000000) + (CurS - TimeS); -difference({_, TimeS, _}, {_, CurS, _}) -> - CurS - TimeS. - -%%% ------------------------------------------------------ -%%% Error and progress reporting. -%%% ------------------------------------------------------ - -report_error(Error, Reason, Child, SupName) -> - ErrorMsg = [{supervisor, SupName}, - {errorContext, Error}, - {reason, Reason}, - {offender, extract_child(Child)}], - error_logger:error_report(supervisor_report, ErrorMsg). - - -extract_child(Child) -> - [{pid, Child#child.pid}, - {name, Child#child.name}, - {mfa, Child#child.mfa}, - {restart_type, Child#child.restart_type}, - {shutdown, Child#child.shutdown}, - {child_type, Child#child.child_type}]. - -report_progress(Child, SupName) -> - Progress = [{supervisor, SupName}, - {started, extract_child(Child)}], - error_logger:info_report(progress, Progress). diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl deleted file mode 100644 index 0d50683d..00000000 --- a/src/tcp_acceptor.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor). - --behaviour(gen_server). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {callback, sock, ref}). - -%%-------------------------------------------------------------------- - -start_link(Callback, LSock) -> - gen_server:start_link(?MODULE, {Callback, LSock}, []). - -%%-------------------------------------------------------------------- - -init({Callback, LSock}) -> - gen_server:cast(self(), accept), - {ok, #state{callback=Callback, sock=LSock}}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(accept, State) -> - ok = file_handle_cache:obtain(), - accept(State); - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({inet_async, LSock, Ref, {ok, Sock}}, - State = #state{callback={M,F,A}, sock=LSock, ref=Ref}) -> - - %% patch up the socket so it looks like one we got from - %% gen_tcp:accept/1 - {ok, Mod} = inet_db:lookup_socket(LSock), - inet_db:register_socket(Sock, Mod), - - try - %% report - {Address, Port} = inet_op(fun () -> inet:sockname(LSock) end), - {PeerAddress, PeerPort} = inet_op(fun () -> inet:peername(Sock) end), - error_logger:info_msg("accepted TCP connection on ~s:~p from ~s:~p~n", - [rabbit_misc:ntoab(Address), Port, - rabbit_misc:ntoab(PeerAddress), PeerPort]), - %% In the event that somebody floods us with connections we can spew - %% the above message at error_logger faster than it can keep up. - %% So error_logger's mailbox grows unbounded until we eat all the - %% memory available and crash. So here's a meaningless synchronous call - %% to the underlying gen_event mechanism - when it returns the mailbox - %% is drained. - gen_event:which_handlers(error_logger), - %% handle - file_handle_cache:transfer(apply(M, F, A ++ [Sock])), - ok = file_handle_cache:obtain() - catch {inet_error, Reason} -> - gen_tcp:close(Sock), - error_logger:error_msg("unable to accept TCP connection: ~p~n", - [Reason]) - end, - - %% accept more - accept(State); - -handle_info({inet_async, LSock, Ref, {error, closed}}, - State=#state{sock=LSock, ref=Ref}) -> - %% It would be wrong to attempt to restart the acceptor when we - %% know this will fail. - {stop, normal, State}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -accept(State = #state{sock=LSock}) -> - case prim_inet:async_accept(LSock, -1) of - {ok, Ref} -> {noreply, State#state{ref=Ref}}; - Error -> {stop, {cannot_accept, Error}, State} - end. diff --git a/src/tcp_acceptor_sup.erl b/src/tcp_acceptor_sup.erl deleted file mode 100644 index bf0eacd1..00000000 --- a/src/tcp_acceptor_sup.erl +++ /dev/null @@ -1,31 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - -start_link(Name, Callback) -> - supervisor:start_link({local,Name}, ?MODULE, Callback). - -init(Callback) -> - {ok, {{simple_one_for_one, 10, 10}, - [{tcp_acceptor, {tcp_acceptor, start_link, [Callback]}, - transient, brutal_kill, worker, [tcp_acceptor]}]}}. diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl deleted file mode 100644 index cd646969..00000000 --- a/src/tcp_listener.erl +++ /dev/null @@ -1,84 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener). - --behaviour(gen_server). - --export([start_link/8]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {sock, on_startup, on_shutdown, label}). - -%%-------------------------------------------------------------------- - -start_link(IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label) -> - gen_server:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label}, []). - -%%-------------------------------------------------------------------- - -init({IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - {M,F,A} = OnStartup, OnShutdown, Label}) -> - process_flag(trap_exit, true), - case gen_tcp:listen(Port, SocketOpts ++ [{ip, IPAddress}, - {active, false}]) of - {ok, LSock} -> - lists:foreach(fun (_) -> - {ok, _APid} = supervisor:start_child( - AcceptorSup, [LSock]) - end, - lists:duplicate(ConcurrentAcceptorCount, dummy)), - {ok, {LIPAddress, LPort}} = inet:sockname(LSock), - error_logger:info_msg( - "started ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(LIPAddress), LPort]), - apply(M, F, A ++ [IPAddress, Port]), - {ok, #state{sock = LSock, - on_startup = OnStartup, on_shutdown = OnShutdown, - label = Label}}; - {error, Reason} -> - error_logger:error_msg( - "failed to start ~s on ~s:~p - ~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port, Reason]), - {stop, {cannot_listen, IPAddress, Port, Reason}} - end. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state{sock=LSock, on_shutdown = {M,F,A}, label=Label}) -> - {ok, {IPAddress, Port}} = inet:sockname(LSock), - gen_tcp:close(LSock), - error_logger:info_msg("stopped ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port]), - apply(M, F, A ++ [IPAddress, Port]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl deleted file mode 100644 index 58c2f30c..00000000 --- a/src/tcp_listener_sup.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener_sup). - --behaviour(supervisor). - --export([start_link/7, start_link/8]). - --export([init/1]). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, Label) -> - start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, 1, Label). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label) -> - supervisor:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}). - -init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}) -> - %% This is gross. The tcp_listener needs to know about the - %% tcp_acceptor_sup, and the only way I can think of accomplishing - %% that without jumping through hoops is to register the - %% tcp_acceptor_sup. - Name = rabbit_misc:tcp_name(tcp_acceptor_sup, IPAddress, Port), - {ok, {{one_for_all, 10, 10}, - [{tcp_acceptor_sup, {tcp_acceptor_sup, start_link, - [Name, AcceptCallback]}, - transient, infinity, supervisor, [tcp_acceptor_sup]}, - {tcp_listener, {tcp_listener, start_link, - [IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, Name, - OnStartup, OnShutdown, Label]}, - transient, 16#ffffffff, worker, [tcp_listener]}]}}. diff --git a/src/test_sup.erl b/src/test_sup.erl deleted file mode 100644 index b4df1fd0..00000000 --- a/src/test_sup.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(test_sup). - --behaviour(supervisor2). - --export([test_supervisor_delayed_restart/0, - init/1, start_child/0]). - -test_supervisor_delayed_restart() -> - passed = with_sup(simple_one_for_one_terminate, - fun (SupPid) -> - {ok, _ChildPid} = - supervisor2:start_child(SupPid, []), - test_supervisor_delayed_restart(SupPid) - end), - passed = with_sup(one_for_one, fun test_supervisor_delayed_restart/1). - -test_supervisor_delayed_restart(SupPid) -> - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(10), - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(10), - timeout = ping_child(SupPid), - timer:sleep(1010), - ok = ping_child(SupPid), - passed. - -with_sup(RestartStrategy, Fun) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, [RestartStrategy]), - Res = Fun(SupPid), - exit(SupPid, shutdown), - rabbit_misc:unlink_and_capture_exit(SupPid), - Res. - -init([RestartStrategy]) -> - {ok, {{RestartStrategy, 1, 1}, - [{test, {test_sup, start_child, []}, {permanent, 1}, - 16#ffffffff, worker, [test_sup]}]}}. - -start_child() -> - {ok, proc_lib:spawn_link(fun run_child/0)}. - -ping_child(SupPid) -> - Ref = make_ref(), - with_child_pid(SupPid, fun(ChildPid) -> ChildPid ! {ping, Ref, self()} end), - receive {pong, Ref} -> ok - after 1000 -> timeout - end. - -exit_child(SupPid) -> - with_child_pid(SupPid, fun(ChildPid) -> exit(ChildPid, abnormal) end), - ok. - -with_child_pid(SupPid, Fun) -> - case supervisor2:which_children(SupPid) of - [{_Id, undefined, worker, [test_sup]}] -> ok; - [{_Id, ChildPid, worker, [test_sup]}] -> Fun(ChildPid); - [] -> ok - end. - -run_child() -> - receive {ping, Ref, Pid} -> Pid ! {pong, Ref}, - run_child() - end. diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl deleted file mode 100644 index dcc6aff5..00000000 --- a/src/vm_memory_monitor.erl +++ /dev/null @@ -1,363 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% In practice Erlang shouldn't be allowed to grow to more than a half -%% of available memory. The pessimistic scenario is when the Erlang VM -%% has a single process that's consuming all memory. In such a case, -%% during garbage collection, Erlang tries to allocate a huge chunk of -%% continuous memory, which can result in a crash or heavy swapping. -%% -%% This module tries to warn Rabbit before such situations occur, so -%% that it has a higher chance to avoid running out of memory. - --module(vm_memory_monitor). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0, get_total_memory/0, get_vm_limit/0, - get_check_interval/0, set_check_interval/1, - get_vm_memory_high_watermark/0, set_vm_memory_high_watermark/1, - get_memory_limit/0]). - - --define(SERVER, ?MODULE). --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%% For an unknown OS, we assume that we have 1GB of memory. It'll be -%% wrong. Scale by vm_memory_high_watermark in configuration to get a -%% sensible value. --define(MEMORY_SIZE_FOR_UNKNOWN_OS, 1073741824). - --record(state, {total_memory, - memory_limit, - timeout, - timer, - alarmed - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (float()) -> {'ok', pid()} | {'error', any()}). --spec(update/0 :: () -> 'ok'). --spec(get_total_memory/0 :: () -> (non_neg_integer() | 'unknown')). --spec(get_vm_limit/0 :: () -> non_neg_integer()). --spec(get_memory_limit/0 :: () -> non_neg_integer()). --spec(get_check_interval/0 :: () -> non_neg_integer()). --spec(set_check_interval/1 :: (non_neg_integer()) -> 'ok'). --spec(get_vm_memory_high_watermark/0 :: () -> float()). --spec(set_vm_memory_high_watermark/1 :: (float()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -update() -> - gen_server:cast(?SERVER, update). - -get_total_memory() -> - get_total_memory(os:type()). - -get_vm_limit() -> - get_vm_limit(os:type()). - -get_check_interval() -> - gen_server:call(?MODULE, get_check_interval, infinity). - -set_check_interval(Fraction) -> - gen_server:call(?MODULE, {set_check_interval, Fraction}, infinity). - -get_vm_memory_high_watermark() -> - gen_server:call(?MODULE, get_vm_memory_high_watermark, infinity). - -set_vm_memory_high_watermark(Fraction) -> - gen_server:call(?MODULE, {set_vm_memory_high_watermark, Fraction}, - infinity). - -get_memory_limit() -> - gen_server:call(?MODULE, get_memory_limit, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -init([MemFraction]) -> - TotalMemory = - case get_total_memory() of - unknown -> - error_logger:warning_msg( - "Unknown total memory size for your OS ~p. " - "Assuming memory size is ~pMB.~n", - [os:type(), trunc(?MEMORY_SIZE_FOR_UNKNOWN_OS/1048576)]), - ?MEMORY_SIZE_FOR_UNKNOWN_OS; - M -> M - end, - MemLimit = get_mem_limit(MemFraction, TotalMemory), - error_logger:info_msg("Memory limit set to ~pMB.~n", - [trunc(MemLimit/1048576)]), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - State = #state { total_memory = TotalMemory, - memory_limit = MemLimit, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - alarmed = false}, - {ok, internal_update(State)}. - -handle_call(get_vm_memory_high_watermark, _From, State) -> - {reply, State#state.memory_limit / State#state.total_memory, State}; - -handle_call({set_vm_memory_high_watermark, MemFraction}, _From, State) -> - MemLimit = get_mem_limit(MemFraction, State#state.total_memory), - error_logger:info_msg("Memory alarm changed to ~p, ~p bytes.~n", - [MemFraction, MemLimit]), - {reply, ok, State#state{memory_limit = MemLimit}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_limit, _From, State) -> - {reply, State#state.memory_limit, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% Server Internals -%%---------------------------------------------------------------------------- - -internal_update(State = #state { memory_limit = MemLimit, - alarmed = Alarmed}) -> - MemUsed = erlang:memory(total), - NewAlarmed = MemUsed > MemLimit, - case {Alarmed, NewAlarmed} of - {false, true} -> - emit_update_info(set, MemUsed, MemLimit), - alarm_handler:set_alarm({{vm_memory_high_watermark, node()}, []}); - {true, false} -> - emit_update_info(clear, MemUsed, MemLimit), - alarm_handler:clear_alarm({vm_memory_high_watermark, node()}); - _ -> - ok - end, - State #state {alarmed = NewAlarmed}. - -emit_update_info(State, MemUsed, MemLimit) -> - error_logger:info_msg( - "vm_memory_high_watermark ~p. Memory used:~p allowed:~p~n", - [State, MemUsed, MemLimit]). - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% According to http://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx -%% Windows has 2GB and 8TB of address space for 32 and 64 bit accordingly. -get_vm_limit({win32,_OSname}) -> - case erlang:system_info(wordsize) of - 4 -> 2*1024*1024*1024; %% 2 GB for 32 bits 2^31 - 8 -> 8*1024*1024*1024*1024 %% 8 TB for 64 bits 2^42 - end; - -%% On a 32-bit machine, if you're using more than 2 gigs of RAM you're -%% in big trouble anyway. -get_vm_limit(_OsType) -> - case erlang:system_info(wordsize) of - 4 -> 4*1024*1024*1024; %% 4 GB for 32 bits 2^32 - 8 -> 256*1024*1024*1024*1024 %% 256 TB for 64 bits 2^48 - %%http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_details - end. - -get_mem_limit(MemFraction, TotalMemory) -> - AvMem = lists:min([TotalMemory, get_vm_limit()]), - trunc(AvMem * MemFraction). - -%%---------------------------------------------------------------------------- -%% Internal Helpers -%%---------------------------------------------------------------------------- -cmd(Command) -> - Exec = hd(string:tokens(Command, " ")), - case os:find_executable(Exec) of - false -> throw({command_not_found, Exec}); - _ -> os:cmd(Command) - end. - -%% get_total_memory(OS) -> Total -%% Windows and Freebsd code based on: memsup:get_memory_usage/1 -%% Original code was part of OTP and released under "Erlang Public License". - -get_total_memory({unix,darwin}) -> - File = cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_mach/1, Lines)), - [PageSize, Inactive, Active, Free, Wired] = - [dict:fetch(Key, Dict) || - Key <- [page_size, 'Pages inactive', 'Pages active', 'Pages free', - 'Pages wired down']], - PageSize * (Inactive + Active + Free + Wired); - -get_total_memory({unix,freebsd}) -> - PageSize = freebsd_sysctl("vm.stats.vm.v_page_size"), - PageCount = freebsd_sysctl("vm.stats.vm.v_page_count"), - PageCount * PageSize; - -get_total_memory({win32,_OSname}) -> - %% Due to the Erlang print format bug, on Windows boxes the memory - %% size is broken. For example Windows 7 64 bit with 4Gigs of RAM - %% we get negative memory size: - %% > os_mon_sysinfo:get_mem_info(). - %% ["76 -1658880 1016913920 -1 -1021628416 2147352576 2134794240\n"] - %% Due to this bug, we don't actually know anything. Even if the - %% number is postive we can't be sure if it's correct. This only - %% affects us on os_mon versions prior to 2.2.1. - case application:get_key(os_mon, vsn) of - undefined -> - unknown; - {ok, Version} -> - case rabbit_misc:version_compare(Version, "2.2.1", lt) of - true -> %% os_mon is < 2.2.1, so we know nothing - unknown; - false -> - [Result|_] = os_mon_sysinfo:get_mem_info(), - {ok, [_MemLoad, TotPhys, _AvailPhys, - _TotPage, _AvailPage, _TotV, _AvailV], _RestStr} = - io_lib:fread("~d~d~d~d~d~d~d", Result), - TotPhys - end - end; - -get_total_memory({unix, linux}) -> - File = read_proc_file("/proc/meminfo"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_linux/1, Lines)), - dict:fetch('MemTotal', Dict); - -get_total_memory({unix, sunos}) -> - File = cmd("/usr/sbin/prtconf"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_sunos/1, Lines)), - dict:fetch('Memory size', Dict); - -get_total_memory({unix, aix}) -> - File = cmd("/usr/bin/vmstat -v"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_aix/1, Lines)), - dict:fetch('memory pages', Dict) * 4096; - -get_total_memory(_OsType) -> - unknown. - -%% A line looks like "Foo bar: 123456." -parse_line_mach(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. - -%% A line looks like "FooBar: 123456 kB" -parse_line_linux(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. - -%% A line looks like "Memory size: 1024 Megabytes" -parse_line_sunos(Line) -> - case string:tokens(Line, ":") of - [Name, RHS | _Rest] -> - [Value1 | UnitsRest] = string:tokens(RHS, " "), - Value2 = case UnitsRest of - ["Gigabytes"] -> - list_to_integer(Value1) * 1024 * 1024 * 1024; - ["Megabytes"] -> - list_to_integer(Value1) * 1024 * 1024; - ["Kilobytes"] -> - list_to_integer(Value1) * 1024; - _ -> - Value1 ++ UnitsRest %% no known units - end, - {list_to_atom(Name), Value2}; - [Name] -> {list_to_atom(Name), none} - end. - -%% Lines look like " 12345 memory pages" -%% or " 80.1 maxpin percentage" -parse_line_aix(Line) -> - [Value | NameWords] = string:tokens(Line, " "), - Name = string:join(NameWords, " "), - {list_to_atom(Name), - case lists:member($., Value) of - true -> trunc(list_to_float(Value)); - false -> list_to_integer(Value) - end}. - -freebsd_sysctl(Def) -> - list_to_integer(cmd("/sbin/sysctl -n " ++ Def) -- "\n"). - -%% file:read_file does not work on files in /proc as it seems to get -%% the size of the file first and then read that many bytes. But files -%% in /proc always have length 0, we just have to read until we get -%% eof. -read_proc_file(File) -> - {ok, IoDevice} = file:open(File, [read, raw]), - Res = read_proc_file(IoDevice, []), - file:close(IoDevice), - lists:flatten(lists:reverse(Res)). - --define(BUFFER_SIZE, 1024). -read_proc_file(IoDevice, Acc) -> - case file:read(IoDevice, ?BUFFER_SIZE) of - {ok, Res} -> read_proc_file(IoDevice, [Res | Acc]); - eof -> Acc - end. diff --git a/src/worker_pool.erl b/src/worker_pool.erl deleted file mode 100644 index e4f260cc..00000000 --- a/src/worker_pool.erl +++ /dev/null @@ -1,140 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool). - -%% Generic worker pool manager. -%% -%% Supports nested submission of jobs (nested jobs always run -%% immediately in current worker process). -%% -%% Possible future enhancements: -%% -%% 1. Allow priorities (basically, change the pending queue to a -%% priority_queue). - --behaviour(gen_server2). - --export([start_link/0, submit/1, submit_async/1, idle/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(submit/1 :: (fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/1 :: - (fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(state, { available, pending }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], - [{timeout, infinity}]). - -submit(Fun) -> - case get(worker_pool_worker) of - true -> worker_pool_worker:run(Fun); - _ -> Pid = gen_server2:call(?SERVER, next_free, infinity), - worker_pool_worker:submit(Pid, Fun) - end. - -submit_async(Fun) -> - gen_server2:cast(?SERVER, {run_async, Fun}). - -idle(WId) -> - gen_server2:cast(?SERVER, {idle, WId}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state { pending = queue:new(), available = queue:new() }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(next_free, From, State = #state { available = Avail, - pending = Pending }) -> - case queue:out(Avail) of - {empty, _Avail} -> - {noreply, - State #state { pending = queue:in({next_free, From}, Pending) }, - hibernate}; - {{value, WId}, Avail1} -> - {reply, get_worker_pid(WId), State #state { available = Avail1 }, - hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({idle, WId}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, case queue:out(Pending) of - {empty, _Pending} -> - State #state { available = queue:in(WId, Avail) }; - {{value, {next_free, From}}, Pending1} -> - gen_server2:reply(From, get_worker_pid(WId)), - State #state { pending = Pending1 }; - {{value, {run_async, Fun}}, Pending1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { pending = Pending1 } - end, hibernate}; - -handle_cast({run_async, Fun}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, - case queue:out(Avail) of - {empty, _Avail} -> - State #state { pending = queue:in({run_async, Fun}, Pending)}; - {{value, WId}, Avail1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { available = Avail1 } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. - -%%---------------------------------------------------------------------------- - -get_worker_pid(WId) -> - [{WId, Pid, _Type, _Modules} | _] = - lists:dropwhile(fun ({Id, _Pid, _Type, _Modules}) - when Id =:= WId -> false; - (_) -> true - end, - supervisor:which_children(worker_pool_sup)), - Pid. diff --git a/src/worker_pool_sup.erl b/src/worker_pool_sup.erl deleted file mode 100644 index 28c1adc6..00000000 --- a/src/worker_pool_sup.erl +++ /dev/null @@ -1,53 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_sup). - --behaviour(supervisor). - --export([start_link/0, start_link/1]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link() -> - start_link(erlang:system_info(schedulers)). - -start_link(WCount) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [WCount]). - -%%---------------------------------------------------------------------------- - -init([WCount]) -> - {ok, {{one_for_one, 10, 10}, - [{worker_pool, {worker_pool, start_link, []}, transient, - 16#ffffffff, worker, [worker_pool]} | - [{N, {worker_pool_worker, start_link, [N]}, transient, 16#ffffffff, - worker, [worker_pool_worker]} || N <- lists:seq(1, WCount)]]}}. diff --git a/src/worker_pool_worker.erl b/src/worker_pool_worker.erl deleted file mode 100644 index 78ab4df3..00000000 --- a/src/worker_pool_worker.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_worker). - --behaviour(gen_server2). - --export([start_link/1, submit/2, submit_async/2, run/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (any()) -> {'ok', pid()} | {'error', any()}). --spec(submit/2 :: (pid(), fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/2 :: - (pid(), fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). --spec(run/1 :: (fun (() -> A)) -> A; - ({atom(), atom(), [any()]}) -> any()). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(WId) -> - gen_server2:start_link(?MODULE, [WId], [{timeout, infinity}]). - -submit(Pid, Fun) -> - gen_server2:call(Pid, {submit, Fun}, infinity). - -submit_async(Pid, Fun) -> - gen_server2:cast(Pid, {submit_async, Fun}). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -run({M, F, A}) -> - apply(M, F, A); -run(Fun) -> - Fun(). - -%%---------------------------------------------------------------------------- - -init([WId]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - ok = worker_pool:idle(WId), - put(worker_pool_worker, true), - {ok, WId, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call({submit, Fun}, From, WId) -> - gen_server2:reply(From, run(Fun)), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({submit_async, Fun}, WId) -> - run(Fun), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_cast({set_maximum_since_use, Age}, WId) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, WId, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. -- cgit v1.2.1 From 65dc86b4ec2b9bc52aa8e278c541e21cfc02aede Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 10 May 2011 15:52:25 +0100 Subject: Update server to match recent changes to erlando --- src/rabbit_tests.erl | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 71de87c3..31f366db 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -21,7 +21,7 @@ -export([all_tests/0, test_parsing/0]). -compile({parse_transform, cut}). --compile({parse_transform, erlando}). +-compile({parse_transform, do}). -include("rabbit.hrl"). -include("rabbit_framing.hrl"). @@ -2296,26 +2296,19 @@ test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ) -> StateT = state_t:new(identity_m), SM = StateT:modify(_), + SMR = StateT:modify_and_return(_), StateT:exec( do([StateT || SM(rabbit_variable_queue:set_ram_duration_target(0, _)), SM(variable_queue_publish(false, 4, _)), - AckTags <- modify_and_return( - StateT, variable_queue_fetch(2, false, false, 4, _)), + AckTags <- SMR(variable_queue_fetch(2, false, false, 4, _)), SM(rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, _)), SM(rabbit_variable_queue:idle_timeout(_)), SM(rabbit_variable_queue:terminate(_)), StateT:put(variable_queue_init(test_queue(), true, true)), - empty <- modify_and_return( - StateT, rabbit_variable_queue:fetch(false, _)), + empty <- (rabbit_variable_queue:fetch(false, _)), return(passed)]), VQ). -modify_and_return(StateT, Fun) -> - do([StateT || S <- StateT:get(), - {A, S1} <- return(Fun(S)), - StateT:put(S1), - return(A)]). - test_queue_recover() -> Count = 2 * rabbit_queue_index:next_segment_boundary(0), TxID = rabbit_guid:guid(), -- cgit v1.2.1 From ebdcea50b9f2e4f414137b84d8968e76ef7d8320 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 10 May 2011 17:10:18 +0100 Subject: rename --- packaging/RPMS/Fedora/rabbitmq-server.logrotate | 2 +- packaging/common/rabbitmq-server.init | 8 ++++---- packaging/debs/Debian/debian/rabbitmq-server.logrotate | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/packaging/RPMS/Fedora/rabbitmq-server.logrotate b/packaging/RPMS/Fedora/rabbitmq-server.logrotate index 6ce02125..7c8d7d58 100644 --- a/packaging/RPMS/Fedora/rabbitmq-server.logrotate +++ b/packaging/RPMS/Fedora/rabbitmq-server.logrotate @@ -7,6 +7,6 @@ notifempty sharedscripts postrotate - /sbin/service rabbitmq-server reopen-logs > /dev/null + /sbin/service rabbitmq-server truncate-and-reopen-logs > /dev/null endscript } diff --git a/packaging/common/rabbitmq-server.init b/packaging/common/rabbitmq-server.init index 15e3ee34..c35e2c97 100644 --- a/packaging/common/rabbitmq-server.init +++ b/packaging/common/rabbitmq-server.init @@ -92,7 +92,7 @@ status_rabbitmq() { set -e } -reopen_logs_rabbitmq() { +truncate_and_reopen_logs_rabbitmq() { set +e # Do not supply a suffix as we do not want to rotate the logs. $CONTROL rotate_logs @@ -131,9 +131,9 @@ case "$1" in status) status_rabbitmq ;; - reopen-logs) + truncate-and-reopen-logs) echo -n "Rotating log files for $DESC: " - reopen_logs_rabbitmq + truncate_and_reopen_logs_rabbitmq ;; force-reload|reload|restart) echo -n "Restarting $DESC: " @@ -146,7 +146,7 @@ case "$1" in echo "$NAME." ;; *) - echo "Usage: $0 {start|stop|status|reopen-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 + echo "Usage: $0 {start|stop|status|truncate-and-reopen-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 RETVAL=1 ;; esac diff --git a/packaging/debs/Debian/debian/rabbitmq-server.logrotate b/packaging/debs/Debian/debian/rabbitmq-server.logrotate index 6c034ccf..826221ba 100644 --- a/packaging/debs/Debian/debian/rabbitmq-server.logrotate +++ b/packaging/debs/Debian/debian/rabbitmq-server.logrotate @@ -7,6 +7,6 @@ notifempty sharedscripts postrotate - /etc/init.d/rabbitmq-server reopen-logs > /dev/null + /etc/init.d/rabbitmq-server truncate-and-reopen-logs > /dev/null endscript } -- cgit v1.2.1 From 293384c8992dff08a7e4339b89fb8907749abd40 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 11 May 2011 13:30:23 +0100 Subject: Once a command assembler has gone bad, it should ignore everything that happens subsequently --- src/rabbit_command_assembler.erl | 10 +++++++--- src/rabbit_reader.erl | 4 ++-- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl index 07036ce8..c2e30abd 100644 --- a/src/rabbit_command_assembler.erl +++ b/src/rabbit_command_assembler.erl @@ -84,7 +84,7 @@ process({method, MethodName, FieldsBin}, {method, Protocol}) -> {ok, {content_header, Method, ClassId, Protocol}}; false -> {ok, Method, {method, Protocol}} end - catch exit:#amqp_error{} = Reason -> {error, Reason} + catch exit:#amqp_error{} = Reason -> {error, Reason, error} end; process(_Frame, {method, _Protocol}) -> unexpected_frame("expected method frame, " @@ -116,7 +116,10 @@ process({content_body, FragmentBin}, end; process(_Frame, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> unexpected_frame("expected content body, " - "got non content body frame instead", [], Method). + "got non content body frame instead", [], Method); +process(_Frame, error) -> + {ok, error}. + %%-------------------------------------------------------------------- @@ -128,6 +131,7 @@ empty_content(ClassId, PropertiesBin, Protocol) -> payload_fragments_rev = []}. unexpected_frame(Format, Params, Method) when is_atom(Method) -> - {error, rabbit_misc:amqp_error(unexpected_frame, Format, Params, Method)}; + {error, rabbit_misc:amqp_error(unexpected_frame, Format, Params, Method), + error}; unexpected_frame(Format, Params, Method) -> unexpected_frame(Format, Params, rabbit_misc:method_record_type(Method)). diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index f5214a77..395ae4b5 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -904,9 +904,9 @@ process_channel_frame(Frame, ErrPid, Channel, ChPid, AState) -> {ok, Method, Content, NewAState} -> rabbit_channel:do(ChPid, Method, Content), NewAState; - {error, Reason} -> ErrPid ! {channel_exit, Channel, + {error, Reason, NewAState} -> ErrPid ! {channel_exit, Channel, Reason}, - AState + NewAState end. handle_exception(State = #v1{connection_state = closed}, _Channel, _Reason) -> -- cgit v1.2.1 From d6f45579020184c954fc138aa61cf276b7ed3b90 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 25 May 2011 12:42:52 +0100 Subject: introduce mirror_pins --- include/rabbit.hrl | 2 +- src/rabbit_amqqueue.erl | 6 ++++-- src/rabbit_types.erl | 3 ++- src/rabbit_upgrade_functions.erl | 5 +++-- 4 files changed, 10 insertions(+), 6 deletions(-) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 1388f3c4..ffb0cce4 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -46,7 +46,7 @@ -record(exchange_serial, {name, next}). -record(amqqueue, {name, durable, auto_delete, exclusive_owner = none, - arguments, pid, mirror_pids}). + arguments, pid, mirror_pids, mirror_pins}). %% mnesia doesn't like unary records, so we add a dummy 'value' field -record(route, {binding, value = const}). diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 268199e5..ad7f20fa 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -201,7 +201,8 @@ declare(QueueName, Durable, AutoDelete, Args, Owner) -> arguments = Args, exclusive_owner = Owner, pid = none, - mirror_pids = []}), + mirror_pids = [], + mirror_pins = []}), case gen_server2:call(Q#amqqueue.pid, {init, false}, infinity) of not_found -> rabbit_misc:not_found(QueueName); Q1 -> Q1 @@ -505,7 +506,8 @@ pseudo_queue(QueueName, Pid) -> auto_delete = false, arguments = [], pid = Pid, - mirror_pids = []}. + mirror_pids = [], + mirror_pins = []}. safe_delegate_call_ok(F, Pids) -> case delegate:invoke(Pids, fun (Pid) -> diff --git a/src/rabbit_types.erl b/src/rabbit_types.erl index aa174e96..ed1da4ff 100644 --- a/src/rabbit_types.erl +++ b/src/rabbit_types.erl @@ -125,7 +125,8 @@ exclusive_owner :: rabbit_types:maybe(pid()), arguments :: rabbit_framing:amqp_table(), pid :: rabbit_types:maybe(pid()), - mirror_pids :: [pid()]}). + mirror_pids :: [pid()], + mirror_pins :: [node()]}). -type(exchange() :: #exchange{name :: rabbit_exchange:name(), diff --git a/src/rabbit_upgrade_functions.erl b/src/rabbit_upgrade_functions.erl index a6f02a0e..3b437fa9 100644 --- a/src/rabbit_upgrade_functions.erl +++ b/src/rabbit_upgrade_functions.erl @@ -127,12 +127,13 @@ mirror_pids() -> Tables = [rabbit_queue, rabbit_durable_queue], AddMirrorPidsFun = fun ({amqqueue, Name, Durable, AutoDelete, Owner, Arguments, Pid}) -> - {amqqueue, Name, Durable, AutoDelete, Owner, Arguments, Pid, []} + {amqqueue, Name, Durable, AutoDelete, Owner, Arguments, Pid, + [], []} end, [ ok = transform(T, AddMirrorPidsFun, [name, durable, auto_delete, exclusive_owner, arguments, - pid, mirror_pids]) + pid, mirror_pids, mirror_pins]) || T <- Tables ], ok. -- cgit v1.2.1 From 2556d6138879ecf74c4fc64af3cf9b22f487f98c Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Wed, 25 May 2011 14:19:36 +0100 Subject: rabbitmqctl - all server status commands --- Makefile | 16 ++++++++---- docs/ctl-options.xsl | 26 +++++++++++++++++++ docs/rabbitmqctl.1.xml | 19 ++++++++++++++ src/rabbit.erl | 11 +++++++- src/rabbit_control.erl | 68 ++++++++++++++++++++++++++++++++++++++++---------- 5 files changed, 121 insertions(+), 19 deletions(-) create mode 100644 docs/ctl-options.xsl diff --git a/Makefile b/Makefile index cdb86aad..ea1d3435 100644 --- a/Makefile +++ b/Makefile @@ -11,15 +11,16 @@ SOURCE_DIR=src EBIN_DIR=ebin INCLUDE_DIR=include DOCS_DIR=docs -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl +INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl $(CTL_OPTS_HRL) SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) WEB_URL=http://www.rabbitmq.com/ MANPAGES=$(patsubst %.xml, %.gz, $(wildcard $(DOCS_DIR)/*.[0-9].xml)) WEB_MANPAGES=$(patsubst %.xml, %.man.xml, $(wildcard $(DOCS_DIR)/*.[0-9].xml) $(DOCS_DIR)/rabbitmq-service.xml) -USAGES_XML=$(DOCS_DIR)/rabbitmqctl.1.xml -USAGES_ERL=$(foreach XML, $(USAGES_XML), $(call usage_xml_to_erl, $(XML))) +CTL_XML=$(DOCS_DIR)/rabbitmqctl.1.xml +USAGES_ERL=$(foreach XML, $(CTL_XML), $(call usage_xml_to_erl, $(XML))) +CTL_OPTS_HRL=$(INCLUDE_DIR)/rabbit_ctl_opts.hrl ifeq ($(shell python -c 'import simplejson' 2>/dev/null && echo yes),yes) PYTHON=python @@ -132,7 +133,7 @@ clean: rm -f $(EBIN_DIR)/*.beam rm -f $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script $(EBIN_DIR)/rabbit.rel rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCE_DIR)/rabbit_framing_amqp_*.erl codegen.pyc - rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) + rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) $(CTL_OPTS_HRL) rm -f $(RABBIT_PLT) rm -f $(DEPS_FILE) @@ -249,6 +250,9 @@ $(SOURCE_DIR)/%_usage.erl: mv $@.tmp3 $@ rm $@.tmp $@.tmp2 +$(CTL_OPTS_HRL): $(DOCS_DIR)/ctl-options.xsl $(CTL_XML) + xsltproc $^ > $@ + # We rename the file before xmlto sees it since xmlto will use the name of # the file to make internal links. %.man.xml: %.xml $(DOCS_DIR)/html-to-website-xml.xsl @@ -293,7 +297,7 @@ install_dirs: mkdir -p $(SBIN_DIR) mkdir -p $(MAN_DIR) -$(foreach XML,$(USAGES_XML),$(eval $(call usage_dep, $(XML)))) +$(foreach XML,$(CTL_XML),$(eval $(call usage_dep, $(XML)))) # Note that all targets which depend on clean must have clean in their # name. Also any target that doesn't depend on clean should not have @@ -313,3 +317,5 @@ ifneq "$(strip $(patsubst clean%,,$(patsubst %clean,,$(TESTABLEGOALS))))" "" -include $(DEPS_FILE) endif +.SUFFIXES: +.SUFFIXES: .erl .beam .hrl diff --git a/docs/ctl-options.xsl b/docs/ctl-options.xsl new file mode 100644 index 00000000..ae6d578e --- /dev/null +++ b/docs/ctl-options.xsl @@ -0,0 +1,26 @@ + + + + + + %% Generated, do not edit! + + + -define(server_status_commands, [ + + { + + , [{accepts_vhost, + + }], [ + + + , + + ]} + , + + ]). + + + diff --git a/docs/rabbitmqctl.1.xml b/docs/rabbitmqctl.1.xml index ffa01894..b44381ac 100644 --- a/docs/rabbitmqctl.1.xml +++ b/docs/rabbitmqctl.1.xml @@ -1279,6 +1279,25 @@ + + + support_dump + + + Generate a diagnostic dump containing a concatenation of all server status + information for support purposes. The output should be redirected to a + file when accompanying a support request. + + + For example: + + rabbitmqctl support_dump > support_request.txt + + This command creates a support dumpfile which may be attached to a + support request email. + + + diff --git a/src/rabbit.erl b/src/rabbit.erl index e6e80b4a..59b4b3dc 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -18,7 +18,7 @@ -behaviour(application). --export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, +-export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, node_info/0, rotate_logs/1]). -export([start/2, stop/1]). @@ -181,6 +181,10 @@ () -> [{running_applications, [{atom(), string(), string()}]} | {nodes, [{rabbit_mnesia:node_type(), [node()]}]} | {running_nodes, [node()]}]). +-spec(node_info/0 :: + () -> [{node_name, node()} | + {os, {atom(), atom()}} | + {otp, string()}]). -spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). -spec(maybe_insert_default_data/0 :: () -> 'ok'). @@ -220,6 +224,11 @@ status() -> {running_applications, application:which_applications()}] ++ rabbit_mnesia:status(). +node_info() -> + [{node_name, erlang:node()}, + {os, os:type()}, + {otp, erlang:system_info(system_version)}]. + rotate_logs(BinarySuffix) -> Suffix = binary_to_list(BinarySuffix), log_rotation_result(rotate_logs(log_location(kernel), diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 8172f804..5e993a47 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -16,6 +16,7 @@ -module(rabbit_control). -include("rabbit.hrl"). +-include("rabbit_ctl_opts.hrl"). -export([start/0, stop/0, action/5, diagnostics/1]). @@ -221,10 +222,10 @@ action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> Inform("Deleting vhost ~p", Args), call(Node, {rabbit_vhost, delete, Args}); -action(list_vhosts, Node, Args, _Opts, Inform) -> +action(list_vhosts, Node, Args, Opts, Inform) -> Inform("Listing vhosts", []), ArgAtoms = default_if_empty(Args, [name]), - display_info_list(call(Node, {rabbit_vhost, info_all, []}), ArgAtoms); + display_info_list(call(Node, {rabbit_vhost, info_all, []}), ArgAtoms, Opts); action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> Inform("Listing permissions for user ~p", Args), @@ -237,7 +238,8 @@ action(list_queues, Node, Args, Opts, Inform) -> ArgAtoms = default_if_empty(Args, [name, messages]), display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, [VHostArg, ArgAtoms]), - ArgAtoms); + ArgAtoms, + Opts); action(list_exchanges, Node, Args, Opts, Inform) -> Inform("Listing exchanges", []), @@ -245,7 +247,8 @@ action(list_exchanges, Node, Args, Opts, Inform) -> ArgAtoms = default_if_empty(Args, [name, type]), display_info_list(rpc_call(Node, rabbit_exchange, info_all, [VHostArg, ArgAtoms]), - ArgAtoms); + ArgAtoms, + Opts); action(list_bindings, Node, Args, Opts, Inform) -> Inform("Listing bindings", []), @@ -255,21 +258,24 @@ action(list_bindings, Node, Args, Opts, Inform) -> routing_key, arguments]), display_info_list(rpc_call(Node, rabbit_binding, info_all, [VHostArg, ArgAtoms]), - ArgAtoms); + ArgAtoms, + Opts); -action(list_connections, Node, Args, _Opts, Inform) -> +action(list_connections, Node, Args, Opts, Inform) -> Inform("Listing connections", []), ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, [ArgAtoms]), - ArgAtoms); + ArgAtoms, + Opts); -action(list_channels, Node, Args, _Opts, Inform) -> +action(list_channels, Node, Args, Opts, Inform) -> Inform("Listing channels", []), ArgAtoms = default_if_empty(Args, [pid, user, transactional, consumer_count, messages_unacknowledged]), display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); + ArgAtoms, + Opts); action(list_consumers, Node, _Args, Opts, Inform) -> Inform("Listing consumers", []), @@ -279,7 +285,8 @@ action(list_consumers, Node, _Args, Opts, Inform) -> L when is_list(L) -> display_info_list( [lists:zip(InfoKeys, tuple_to_list(X)) || X <- L], - InfoKeys); + InfoKeys, + Opts); Other -> Other end; @@ -309,7 +316,35 @@ action(list_permissions, Node, [], Opts, Inform) -> VHost = proplists:get_value(?VHOST_OPT, Opts), Inform("Listing permissions in vhost ~p", [VHost]), display_list(call(Node, {rabbit_auth_backend_internal, - list_vhost_permissions, [VHost]})). + list_vhost_permissions, [VHost]})); + +action(support_dump, Node, [], Opts, _Inform) -> + Quiet = fun (_Format, _Args1) -> ok end, + io:format("Support dump generated on ~p~n", [erlang:universaltime()]), + action(status, Node, [], Opts, Quiet), + Nodes = rpc_call(Node, mnesia, system_info, [running_db_nodes]), + [io:format("~p~n", [rpc_call(N, rabbit, node_info, [])]) || N <- Nodes], + FilteredCmds = lists:filter(fun ({support_dump, _, _}) -> false; + (_) -> true + end, ?server_status_commands), + [begin + io:format("%% ~p~n", [Cmd]), + action(Cmd, Node, atoms_to_lists(Args), Opts, Quiet) + end || {Cmd, CmdOpt, Args} <- FilteredCmds, + not proplists:get_bool(accepts_vhost, CmdOpt)], + VHosts = rpc_call(Node, rabbit_vhost, list, []), + lists:foreach( + fun (VHost) -> + VHostStr = binary_to_list(VHost), + Options = [{?NODE_OPT, atom_to_list(Node)}, + {?VHOST_OPT, VHostStr}], + [begin + io:format("%% ~p on ~p~n", [Cmd, VHostStr]), + action(Cmd, Node, atoms_to_lists(Args), Options, Quiet) + end || {Cmd, CmdOpt, Args} <- FilteredCmds, + proplists:get_bool(accepts_vhost, CmdOpt)] + end, VHosts), + ok. %%---------------------------------------------------------------------------- @@ -336,14 +371,21 @@ default_if_empty(List, Default) when is_list(List) -> true -> [list_to_atom(X) || X <- List] end. -display_info_list(Results, InfoItemKeys) when is_list(Results) -> +atoms_to_lists(AtomList) -> + [atom_to_list(A) || A <- AtomList]. + +display_info_list(Results, InfoItemKeys, Opts) when is_list(Results) -> + case {Results, proplists:get_bool(?QUIET_OPT, Opts)} of + {[_|_], false} -> display_row(atoms_to_lists(InfoItemKeys)); + _ -> ok + end, lists:foreach( fun (Result) -> display_row( [format_info_item(proplists:get_value(X, Result)) || X <- InfoItemKeys]) end, Results), ok; -display_info_list(Other, _) -> +display_info_list(Other, _, _) -> Other. display_row(Row) -> -- cgit v1.2.1 From 062ea9fae416789cca6392885891a5950d52eee5 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Wed, 25 May 2011 16:01:22 +0100 Subject: Ignore created file, slow down Makefile processing --- .hgignore | 1 + Makefile | 2 -- 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/.hgignore b/.hgignore index 912b4a56..b7a24ffe 100644 --- a/.hgignore +++ b/.hgignore @@ -11,6 +11,7 @@ syntax: regexp ^dist/ ^include/rabbit_framing\.hrl$ ^include/rabbit_framing_spec\.hrl$ +^include/rabbit_ctl_opts.hrl$ ^src/rabbit_framing_amqp.*\.erl$ ^src/.*\_usage.erl$ ^rabbit\.plt$ diff --git a/Makefile b/Makefile index ea1d3435..bede6935 100644 --- a/Makefile +++ b/Makefile @@ -317,5 +317,3 @@ ifneq "$(strip $(patsubst clean%,,$(patsubst %clean,,$(TESTABLEGOALS))))" "" -include $(DEPS_FILE) endif -.SUFFIXES: -.SUFFIXES: .erl .beam .hrl -- cgit v1.2.1 From 02e981bf802b8b86f2dadcac834c5681211ab9b3 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Thu, 26 May 2011 10:15:38 +0100 Subject: rabbitmqctl report --- docs/rabbitmqctl.1.xml | 20 +++++++++++++- src/rabbit_control.erl | 73 +++++++++++++++++++++++++++++++++++++++++--------- 2 files changed, 79 insertions(+), 14 deletions(-) diff --git a/docs/rabbitmqctl.1.xml b/docs/rabbitmqctl.1.xml index ffa01894..d034e02d 100644 --- a/docs/rabbitmqctl.1.xml +++ b/docs/rabbitmqctl.1.xml @@ -1259,7 +1259,7 @@ - list_consumers + list_consumers-p vhostpath List consumers, i.e. subscriptions to a queue's message @@ -1279,6 +1279,24 @@ + + report + + + Generate a server status report containing a concatenation of all server status + information for support purposes. The output should be redirected to a + file when accompanying a support request. + + + For example: + + rabbitmqctl report > server_report.txt + + This command creates a server report which may be attached to a + support request email. + + + diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 8172f804..f0121bfb 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -221,10 +221,10 @@ action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> Inform("Deleting vhost ~p", Args), call(Node, {rabbit_vhost, delete, Args}); -action(list_vhosts, Node, Args, _Opts, Inform) -> +action(list_vhosts, Node, Args, Opts, Inform) -> Inform("Listing vhosts", []), ArgAtoms = default_if_empty(Args, [name]), - display_info_list(call(Node, {rabbit_vhost, info_all, []}), ArgAtoms); + display_info_list(call(Node, {rabbit_vhost, info_all, []}), ArgAtoms, Opts); action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> Inform("Listing permissions for user ~p", Args), @@ -237,7 +237,8 @@ action(list_queues, Node, Args, Opts, Inform) -> ArgAtoms = default_if_empty(Args, [name, messages]), display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, [VHostArg, ArgAtoms]), - ArgAtoms); + ArgAtoms, + Opts); action(list_exchanges, Node, Args, Opts, Inform) -> Inform("Listing exchanges", []), @@ -245,7 +246,8 @@ action(list_exchanges, Node, Args, Opts, Inform) -> ArgAtoms = default_if_empty(Args, [name, type]), display_info_list(rpc_call(Node, rabbit_exchange, info_all, [VHostArg, ArgAtoms]), - ArgAtoms); + ArgAtoms, + Opts); action(list_bindings, Node, Args, Opts, Inform) -> Inform("Listing bindings", []), @@ -255,21 +257,24 @@ action(list_bindings, Node, Args, Opts, Inform) -> routing_key, arguments]), display_info_list(rpc_call(Node, rabbit_binding, info_all, [VHostArg, ArgAtoms]), - ArgAtoms); + ArgAtoms, + Opts); -action(list_connections, Node, Args, _Opts, Inform) -> +action(list_connections, Node, Args, Opts, Inform) -> Inform("Listing connections", []), ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, [ArgAtoms]), - ArgAtoms); + ArgAtoms, + Opts); -action(list_channels, Node, Args, _Opts, Inform) -> +action(list_channels, Node, Args, Opts, Inform) -> Inform("Listing channels", []), ArgAtoms = default_if_empty(Args, [pid, user, transactional, consumer_count, messages_unacknowledged]), display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); + ArgAtoms, + Opts); action(list_consumers, Node, _Args, Opts, Inform) -> Inform("Listing consumers", []), @@ -279,7 +284,8 @@ action(list_consumers, Node, _Args, Opts, Inform) -> L when is_list(L) -> display_info_list( [lists:zip(InfoKeys, tuple_to_list(X)) || X <- L], - InfoKeys); + InfoKeys, + Opts); Other -> Other end; @@ -309,7 +315,35 @@ action(list_permissions, Node, [], Opts, Inform) -> VHost = proplists:get_value(?VHOST_OPT, Opts), Inform("Listing permissions in vhost ~p", [VHost]), display_list(call(Node, {rabbit_auth_backend_internal, - list_vhost_permissions, [VHost]})). + list_vhost_permissions, [VHost]})); + +action(report, Node, _Args, _Opts, _Inform) -> + Quiet = fun (_Format, _Args1) -> ok end, + io:format("Reporting server status on ~p~n", [erlang:universaltime()]), + action(status, Node, [], [], Quiet), + [io:format("node ~p:~n ~p~n ~p~n", + [N, + rpc_call(N, os, type, []), + rpc_call(N, erlang, system_info, [system_version])]) || + N <- rpc_call(Node, mnesia, system_info, [running_db_nodes])], + Report = fun (Descr, M, F, A, Suppress) -> + io:format("%% ~s~n", [Descr]), + display_detected_info_list(rpc_call(Node, M, F, A), Suppress) + end, + Report("connections", rabbit_networking, connection_info_all, [], + [client_properties]), + Report("channels", rabbit_channel, info_all, [], []), + lists:foreach( + fun (VHost) -> + VHostStr = binary_to_list(VHost), + io:format("%% reporting on vhost ~p~n", [VHostStr]), + Report("queues", rabbit_amqqueue, info_all, [VHost], + [backing_queue_status]), + Report("exchanges", rabbit_exchange, info_all, [VHost], []), + Report("bindings", rabbit_binding, info_all, [VHost], []), + io:format("%% consumers~n"), + action(list_consumers, Node, [], [{?VHOST_OPT, VHostStr}], Quiet) + end, rpc_call(Node, rabbit_vhost, list, [])). %%---------------------------------------------------------------------------- @@ -336,14 +370,27 @@ default_if_empty(List, Default) when is_list(List) -> true -> [list_to_atom(X) || X <- List] end. -display_info_list(Results, InfoItemKeys) when is_list(Results) -> +display_detected_info_list([Row|_] = Results, Suppress) -> + {Keys, _Values} = lists:unzip(Row), + display_info_list(Results, Keys -- Suppress, []); +display_detected_info_list([], _) -> + ok. + +atoms_to_lists(AtomList) -> + [atom_to_list(A) || A <- AtomList]. + +display_info_list(Results, InfoItemKeys, Opts) when is_list(Results) -> + case {Results, proplists:get_bool(?QUIET_OPT, Opts)} of + {[_|_], false} -> display_row(atoms_to_lists(InfoItemKeys)); + _ -> ok + end, lists:foreach( fun (Result) -> display_row( [format_info_item(proplists:get_value(X, Result)) || X <- InfoItemKeys]) end, Results), ok; -display_info_list(Other, _) -> +display_info_list(Other, _, _) -> Other. display_row(Row) -> -- cgit v1.2.1 From 34625310b95f9e52c703cd90923f377bd662ab9a Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Thu, 26 May 2011 12:04:10 +0100 Subject: Inline under-used method --- src/rabbit_control.erl | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index f0121bfb..5ee0ac51 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -376,12 +376,9 @@ display_detected_info_list([Row|_] = Results, Suppress) -> display_detected_info_list([], _) -> ok. -atoms_to_lists(AtomList) -> - [atom_to_list(A) || A <- AtomList]. - display_info_list(Results, InfoItemKeys, Opts) when is_list(Results) -> case {Results, proplists:get_bool(?QUIET_OPT, Opts)} of - {[_|_], false} -> display_row(atoms_to_lists(InfoItemKeys)); + {[_|_], false} -> display_row([atom_to_list(A) || A <- InfoItemKeys]); _ -> ok end, lists:foreach( -- cgit v1.2.1 From 053d234bffce92a2dac1b1aacd83fa53b7c6414d Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 27 May 2011 12:04:27 +0100 Subject: If we're using stdin for input, then use stdout for output --- Makefile | 2 +- generate_app | 6 ++---- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/Makefile b/Makefile index 3a40f606..e92d1b64 100644 --- a/Makefile +++ b/Makefile @@ -94,7 +94,7 @@ $(DEPS_FILE): $(SOURCES) $(INCLUDES) echo $(subst : ,:,$(foreach FILE,$^,$(FILE):)) | escript generate_deps $@ $(EBIN_DIR) $(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(SOURCES) generate_app - escript generate_app $@ $(SOURCE_DIR) < $< + escript generate_app $(SOURCE_DIR) < $< > $@ $(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl | $(DEPS_FILE) erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< diff --git a/generate_app b/generate_app index d8813542..db973b06 100644 --- a/generate_app +++ b/generate_app @@ -1,7 +1,7 @@ #!/usr/bin/env escript %% -*- erlang -*- -main([TargetFile | SrcDirs]) -> +main(SrcDirs) -> Modules = [list_to_atom(filename:basename(F, ".erl")) || SrcDir <- SrcDirs, F <- filelib:wildcard("*.erl", SrcDir)], @@ -11,6 +11,4 @@ main([TargetFile | SrcDirs]) -> [] -> lists:keyreplace(modules, 1, Properties, {modules, Modules}); _ -> Properties end, - file:write_file( - TargetFile, - io_lib:format("~p.~n", [{application, Application, NewProperties}])). + io:format("~p.~n", [{application, Application, NewProperties}]). -- cgit v1.2.1 From c0a1627fd92c6a1a6679c871db56448b0b9a9343 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 2 Jun 2011 17:38:04 +0100 Subject: We really have no choice but to copy the beams in. Fortunately, due to the fact clean just wipes out all beams, we don't need to do any further tidying. Thus this seems better than I'd feared by some way --- Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index 7357664a..924f6c1d 100644 --- a/Makefile +++ b/Makefile @@ -100,12 +100,12 @@ all: $(TARGETS) ifdef ERLANDO_SOURCES $(BEAM_TARGETS) : $(ERLANDO) -ERLC_OPTS += -I $(ERLANDO_INCLUDE_DIR) -pa $(ERLANDO_EBIN_DIR) -ERL_EBIN += -pa $(ERLANDO_EBIN_DIR) +ERLC_OPTS += -I $(ERLANDO_INCLUDE_DIR) endif $(ERLANDO): $(ERLANDO_SOURCES) $(ERLANDO_INCLUDES) $(MAKE) -C $(ERLANDO_DIR) + cp $(ERLANDO_EBIN_DIR)/*.beam $(EBIN_DIR) touch $@ $(DEPS_FILE): $(SOURCES) $(INCLUDES) -- cgit v1.2.1 From 4415074831199a08963b872fa4422b8f3efb444e Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 2 Jun 2011 17:38:53 +0100 Subject: Set .hgignore back to default's version seeing as we don't need to keep track of erlando sources any more --- .hgignore | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/.hgignore b/.hgignore index a3559014..912b4a56 100644 --- a/.hgignore +++ b/.hgignore @@ -5,19 +5,6 @@ syntax: glob *.patch erl_crash.dump deps.mk -src/cut.erl -src/do.erl -src/error_m.erl -src/identity_m.erl -src/maybe_m.erl -src/list_m.erl -src/test_m.erl -src/omega_m.erl -src/state_t.erl -src/monad.erl -src/monad_plus.erl -include/monad_specs.hrl -include/monad_plus_specs.hrl syntax: regexp ^cover/ -- cgit v1.2.1 From f80e8f46183ba3afdd0d966861fcb3cb1b4b2f58 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 7 Jun 2011 17:07:50 +0100 Subject: Use magical new features. Arguably in the wrong place, but I'm not going to have this bug branch outside server --- src/rabbit_misc.erl | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index b6b97f6d..121de635 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -15,6 +15,10 @@ %% -module(rabbit_misc). + +-compile({parse_transform, import_as}). +-import_as({proplists, [{get_value/2, pget}, {get_value/3, pget}]}). + -include("rabbit.hrl"). -include("rabbit_framing.hrl"). @@ -911,9 +915,6 @@ is_process_alive(Pid) -> _ -> false end. -pget(K, P) -> proplists:get_value(K, P). -pget(K, P, D) -> proplists:get_value(K, P, D). - pget_or_die(K, P) -> case proplists:get_value(K, P) of undefined -> exit({error, key_missing, K}); -- cgit v1.2.1 From 7e4b8347aa698223b6c0a3174f0c3e5a494a4d4c Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Wed, 8 Jun 2011 11:48:18 +0100 Subject: Avoid rpc:call/4 --- src/rabbit_control.erl | 3 +-- src/rabbit_misc.erl | 2 +- src/rabbit_mnesia.erl | 5 +++-- src/rabbit_upgrade.erl | 4 ++-- 4 files changed, 7 insertions(+), 7 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 355ac549..33e48966 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -19,7 +19,6 @@ -export([start/0, stop/0, action/5, diagnostics/1]). --define(RPC_TIMEOUT, infinity). -define(WAIT_FOR_VM_ATTEMPTS, 5). -define(QUIET_OPT, "-q"). @@ -450,7 +449,7 @@ call(Node, {Mod, Fun, Args}) -> rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). + rpc:call(Node, Mod, Fun, Args, ?MAX_WAIT). %% escape does C-style backslash escaping of non-printable ASCII %% characters. We don't escape characters above 127, since they may diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index b6b97f6d..90103f17 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -906,7 +906,7 @@ ntoab(IP) -> is_process_alive(Pid) when node(Pid) =:= node() -> erlang:is_process_alive(Pid); is_process_alive(Pid) -> - case rpc:call(node(Pid), erlang, is_process_alive, [Pid]) of + case rpc:call(node(Pid), erlang, is_process_alive, [Pid], ?MAX_WAIT) of true -> true; _ -> false end. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 568b9ce6..d8489ced 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -455,7 +455,8 @@ init_db(ClusterNodes, Force, SecondaryPostMnesiaFun) -> {[AnotherNode|_], _} -> %% Subsequent node in cluster, catch up ensure_version_ok( - rpc:call(AnotherNode, rabbit_version, recorded, [])), + rpc:call(AnotherNode, rabbit_version, recorded, [], + ?MAX_WAIT)), IsDiskNode = ClusterNodes == [] orelse lists:member(node(), ClusterNodes), ok = wait_for_replicated_tables(), @@ -648,7 +649,7 @@ leave_cluster(Nodes, RunningNodes) -> case lists:any( fun (Node) -> case rpc:call(Node, mnesia, del_table_copy, - [schema, node()]) of + [schema, node()], ?MAX_WAIT) of {atomic, ok} -> true; {badrpc, nodedown} -> false; {aborted, Reason} -> diff --git a/src/rabbit_upgrade.erl b/src/rabbit_upgrade.erl index a2abb1e5..e70c8524 100644 --- a/src/rabbit_upgrade.erl +++ b/src/rabbit_upgrade.erl @@ -171,7 +171,7 @@ upgrade_mode(AllNodes) -> [ClusterVersion, MyVersion]) end, case rpc:call(Another, rabbit_version, desired_for_scope, - [mnesia]) of + [mnesia], ?MAX_WAIT) of {badrpc, {'EXIT', {undef, _}}} -> ErrFun(unknown_old_version); {badrpc, Reason} -> ErrFun({unknown, Reason}); CV -> case rabbit_version:matches( @@ -237,7 +237,7 @@ nodes_running(Nodes) -> [N || N <- Nodes, node_running(N)]. node_running(Node) -> - case rpc:call(Node, application, which_applications, []) of + case rpc:call(Node, application, which_applications, [], ?MAX_WAIT) of {badrpc, _} -> false; Apps -> lists:keysearch(rabbit, 1, Apps) =/= false end. -- cgit v1.2.1 From e25775ed83d4fb6190c755cf52182678715fbe8c Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 24 Jun 2011 14:53:59 +0100 Subject: Abstract some parameters to rabbit_channel:start_link --- src/rabbit_channel.erl | 21 +++++++++++---------- src/rabbit_channel_sup.erl | 23 +++++++++-------------- src/rabbit_networking.erl | 6 +++--- src/rabbit_reader.erl | 15 +++++---------- src/rabbit_tests.erl | 15 +++++++++++---- src/rabbit_types.erl | 15 ++++++++++++--- 6 files changed, 51 insertions(+), 44 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 991b0b06..e38c25a7 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -20,7 +20,7 @@ -behaviour(gen_server2). --export([start_link/10, do/2, do/3, flush/1, shutdown/1]). +-export([start_link/7, do/2, do/3, flush/1, shutdown/1]). -export([send_command/2, deliver/4, flushed/2, confirm/2]). -export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). -export([refresh_config_all/0, emit_stats/1, ready_for_close/1]). @@ -67,9 +67,8 @@ -type(channel_number() :: non_neg_integer()). --spec(start_link/10 :: - (channel_number(), pid(), pid(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), +-spec(start_link/7 :: + (channel_number(), pid(), pid(), pid(), rabbit_types:connection(), pid(), fun ((non_neg_integer()) -> rabbit_types:ok(pid()))) -> rabbit_types:ok_pid_or_error()). -spec(do/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). @@ -97,11 +96,11 @@ %%---------------------------------------------------------------------------- -start_link(Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun) -> +start_link(Channel, ReaderPid, WriterPid, ConnPid, Connection, CollectorPid, + StartLimiterFun) -> gen_server2:start_link( - ?MODULE, [Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, - VHost, Capabilities, CollectorPid, StartLimiterFun], []). + ?MODULE, [Channel, ReaderPid, WriterPid, ConnPid, Connection, + CollectorPid, StartLimiterFun], []). do(Pid, Method) -> do(Pid, Method, none). @@ -160,8 +159,10 @@ ready_for_close(Pid) -> %%--------------------------------------------------------------------------- -init([Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun]) -> +init([Channel, ReaderPid, WriterPid, ConnPid, Connection, CollectorPid, + StartLimiterFun]) -> + #connection{protocol = Protocol, user = User, vhost = VHost, + capabilities = Capabilities} = Connection, process_flag(trap_exit, true), ok = pg_local:join(rabbit_channels, self()), StatsTimer = rabbit_event:init_stats_timer(), diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl index 65ccca02..d1c7099b 100644 --- a/src/rabbit_channel_sup.erl +++ b/src/rabbit_channel_sup.erl @@ -32,12 +32,9 @@ -type(start_link_args() :: {'tcp', rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), pid(), rabbit_types:protocol(), rabbit_types:user(), - rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()} | + pid(), rabbit_types:connection(), pid()} | {'direct', rabbit_channel:channel_number(), pid(), - rabbit_types:protocol(), rabbit_types:user(), rabbit_types:vhost(), - rabbit_framing:amqp_table(), pid()}). + rabbit_types:connection(), pid()}). -spec(start_link/1 :: (start_link_args()) -> {'ok', pid(), {pid(), any()}}). @@ -45,8 +42,8 @@ %%---------------------------------------------------------------------------- -start_link({tcp, Sock, Channel, FrameMax, ReaderPid, Protocol, User, VHost, - Capabilities, Collector}) -> +start_link({tcp, Sock, Channel, ReaderPid, Connection, Collector}) -> + #connection{protocol = Protocol, frame_max = FrameMax} = Connection, {ok, SupPid} = supervisor2:start_link(?MODULE, []), {ok, WriterPid} = supervisor2:start_child( @@ -58,22 +55,20 @@ start_link({tcp, Sock, Channel, FrameMax, ReaderPid, Protocol, User, VHost, supervisor2:start_child( SupPid, {channel, {rabbit_channel, start_link, - [Channel, ReaderPid, WriterPid, ReaderPid, Protocol, - User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, + [Channel, ReaderPid, WriterPid, ReaderPid, Connection, + Collector, start_limiter_fun(SupPid)]}, intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), {ok, AState} = rabbit_command_assembler:init(Protocol), {ok, SupPid, {ChannelPid, AState}}; -start_link({direct, Channel, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector}) -> +start_link({direct, Channel, ClientChannelPid, ConnPid, Connection, + Collector}) -> {ok, SupPid} = supervisor2:start_link(?MODULE, []), {ok, ChannelPid} = supervisor2:start_child( SupPid, {channel, {rabbit_channel, start_link, [Channel, ClientChannelPid, ClientChannelPid, ConnPid, - Protocol, User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, + Connection, Collector, start_limiter_fun(SupPid)]}, intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), {ok, SupPid, {ChannelPid, none}}. diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index 451e56e8..234a6518 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -58,12 +58,12 @@ -spec(stop_tcp_listener/1 :: (listener_config()) -> 'ok'). -spec(active_listeners/0 :: () -> [rabbit_types:listener()]). -spec(node_listeners/1 :: (node()) -> [rabbit_types:listener()]). --spec(connections/0 :: () -> [rabbit_types:connection()]). +-spec(connections/0 :: () -> [rabbit_types:connection_id()]). -spec(connection_info_keys/0 :: () -> rabbit_types:info_keys()). -spec(connection_info/1 :: - (rabbit_types:connection()) -> rabbit_types:infos()). + (rabbit_types:connection_id()) -> rabbit_types:infos()). -spec(connection_info/2 :: - (rabbit_types:connection(), rabbit_types:info_keys()) + (rabbit_types:connection_id(), rabbit_types:info_keys()) -> rabbit_types:infos()). -spec(connection_info_all/0 :: () -> [rabbit_types:infos()]). -spec(connection_info_all/1 :: diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index f5214a77..de6d4c3d 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -877,18 +877,13 @@ cert_info(F, Sock) -> %%-------------------------------------------------------------------------- -send_to_new_channel(Channel, AnalyzedFrame, State) -> - #v1{sock = Sock, queue_collector = Collector, - channel_sup_sup_pid = ChanSupSup, - connection = #connection{protocol = Protocol, - frame_max = FrameMax, - user = User, - vhost = VHost, - capabilities = Capabilities}} = State, +send_to_new_channel(Channel, AnalyzedFrame, + #v1{sock = Sock, queue_collector = Collector, + channel_sup_sup_pid = ChanSupSup, + connection = Connection} = State) -> {ok, _ChSupPid, {ChPid, AState}} = rabbit_channel_sup_sup:start_channel( - ChanSupSup, {tcp, Sock, Channel, FrameMax, self(), Protocol, User, - VHost, Capabilities, Collector}), + ChanSupSup, {tcp, Sock, Channel, self(), Connection, Collector}), MRef = erlang:monitor(process, ChPid), NewAState = process_channel_frame(AnalyzedFrame, self(), Channel, ChPid, AState), diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index f5492cdc..db66056a 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1131,12 +1131,20 @@ test_user_management() -> passed. +channel_connection() -> + #connection{protocol = rabbit_framing_amqp_0_9_1, + user = user(<<"guest">>), + timeout_sec = 0, + frame_max = 0, + vhost = <<"/">>, + client_properties = [], + capabilities = []}. + test_server_status() -> %% create a few things so there is some useful information to list Writer = spawn(fun () -> receive shutdown -> ok end end), {ok, Ch} = rabbit_channel:start_link( - 1, self(), Writer, self(), rabbit_framing_amqp_0_9_1, - user(<<"user">>), <<"/">>, [], self(), + 1, self(), Writer, self(), channel_connection(), self(), fun (_) -> {ok, self()} end), [Q, Q2] = [Queue || Name <- [<<"foo">>, <<"bar">>], {new, Queue = #amqqueue{}} <- @@ -1202,8 +1210,7 @@ test_spawn() -> Me = self(), Writer = spawn(fun () -> test_writer(Me) end), {ok, Ch} = rabbit_channel:start_link( - 1, Me, Writer, Me, rabbit_framing_amqp_0_9_1, - user(<<"guest">>), <<"/">>, [], self(), + 1, Me, Writer, Me, channel_connection(), self(), fun (_) -> {ok, self()} end), ok = rabbit_channel:do(Ch, #'channel.open'{}), receive #'channel.open_ok'{} -> ok diff --git a/src/rabbit_types.erl b/src/rabbit_types.erl index 03b2c9e8..e0f1bf66 100644 --- a/src/rabbit_types.erl +++ b/src/rabbit_types.erl @@ -26,8 +26,8 @@ unencoded_content/0, encoded_content/0, message_properties/0, vhost/0, ctag/0, amqp_error/0, r/1, r2/2, r3/3, listener/0, binding/0, binding_source/0, binding_destination/0, - amqqueue/0, exchange/0, - connection/0, protocol/0, user/0, internal_user/0, + amqqueue/0, exchange/0, connection/0, + connection_id/0, protocol/0, user/0, internal_user/0, username/0, password/0, password_hash/0, ok/1, error/1, ok_or_error/1, ok_or_error2/2, ok_pid_or_error/0, channel_exit/0, connection_exit/0]). @@ -135,7 +135,16 @@ auto_delete :: boolean(), arguments :: rabbit_framing:amqp_table()}). --type(connection() :: pid()). +-type(connection() :: + #connection{protocol :: atom(), + user :: user(), + timeout_sec :: non_neg_integer(), + frame_max :: non_neg_integer(), + vhost :: vhost(), + client_properties :: rabbit_framing:amqp_table(), + capabilities :: rabbit_framing:amqp_table()}). + +-type(connection_id() :: pid()). -type(protocol() :: rabbit_framing:protocol()). -- cgit v1.2.1 From a8edc75e7239a1e872734219a7b8e17bc852062a Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 24 Jun 2011 15:02:47 +0100 Subject: Avoid changing any api for erlang client direct --- src/rabbit_direct.erl | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/src/rabbit_direct.erl b/src/rabbit_direct.erl index 7ff534ee..4c93dcdb 100644 --- a/src/rabbit_direct.erl +++ b/src/rabbit_direct.erl @@ -75,11 +75,17 @@ connect(Username, VHost, Protocol, Infos) -> start_channel(Number, ClientChannelPid, ConnPid, Protocol, User, VHost, Capabilities, Collector) -> + Connection = #connection{protocol = Protocol, + user = User, + timeout_sec = 0, + frame_max = 0, + vhost = VHost, + client_properties = [], + capabilities = Capabilities}, {ok, _, {ChannelPid, _}} = supervisor2:start_child( rabbit_direct_client_sup, - [{direct, Number, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector}]), + [{direct, Number, ClientChannelPid, ConnPid, Connection, Collector}]), {ok, ChannelPid}. disconnect(Infos) -> -- cgit v1.2.1 From fbd1457ee7df7bed8e92b700c7c14bbbded888e9 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 11 Jul 2011 14:24:08 +0100 Subject: pass ssl broker args to broker during tests --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index d8ef058e..d5beeb9d 100644 --- a/Makefile +++ b/Makefile @@ -168,7 +168,7 @@ run-tests: all start-background-node: $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ + RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached $(SSL_BROKER_ARGS)" \ ./scripts/rabbitmq-server; sleep 1 start-rabbit-on-node: all -- cgit v1.2.1 From 0a507dda2c70c870c1a2b0af5c4f477ea88bf256 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 25 Jul 2011 10:17:34 +0100 Subject: move limiter to its own supervisor started *before* channel --- src/rabbit_channel.erl | 11 ++++++----- src/rabbit_channel_sup.erl | 20 +++++++++---------- src/rabbit_limiter_sup.erl | 49 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 64 insertions(+), 16 deletions(-) create mode 100644 src/rabbit_limiter_sup.erl diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index f398fcc5..ff2d2186 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -30,7 +30,7 @@ prioritise_cast/2]). -record(ch, {state, protocol, channel, reader_pid, writer_pid, conn_pid, - limiter_pid, start_limiter_fun, tx_status, next_tag, + limiter_pid, limiter_sup_pid, tx_status, next_tag, unacked_message_q, uncommitted_message_q, uncommitted_ack_q, user, virtual_host, most_recently_declared_queue, consumer_mapping, blocking, consumer_monitors, queue_collector_pid, @@ -162,7 +162,7 @@ ready_for_close(Pid) -> %%--------------------------------------------------------------------------- init([Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun]) -> + Capabilities, CollectorPid, LimiterSupPid]) -> process_flag(trap_exit, true), ok = pg_local:join(rabbit_channels, self()), StatsTimer = rabbit_event:init_stats_timer(), @@ -173,7 +173,7 @@ init([Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, writer_pid = WriterPid, conn_pid = ConnPid, limiter_pid = undefined, - start_limiter_fun = StartLimiterFun, + limiter_sup_pid = LimiterSupPid, tx_status = none, next_tag = 1, unacked_message_q = queue:new(), @@ -1281,8 +1281,9 @@ fold_per_queue(F, Acc0, UAQ) -> dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, Acc0, D). -start_limiter(State = #ch{unacked_message_q = UAMQ, start_limiter_fun = SLF}) -> - {ok, LPid} = SLF(queue:len(UAMQ)), +start_limiter(State = #ch{unacked_message_q = UAMQ, limiter_sup_pid = LSP}) -> + {ok, LPid} = + rabbit_limiter_sup:start_limiter(LSP, self(), queue:len(UAMQ)), ok = limit_queues(LPid, State), LPid. diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl index 65ccca02..5481fad2 100644 --- a/src/rabbit_channel_sup.erl +++ b/src/rabbit_channel_sup.erl @@ -54,26 +54,28 @@ start_link({tcp, Sock, Channel, FrameMax, ReaderPid, Protocol, User, VHost, {writer, {rabbit_writer, start_link, [Sock, Channel, FrameMax, Protocol, ReaderPid]}, intrinsic, ?MAX_WAIT, worker, [rabbit_writer]}), + {ok, LimiterSupPid} = start_limiter_sup(SupPid), {ok, ChannelPid} = supervisor2:start_child( SupPid, {channel, {rabbit_channel, start_link, [Channel, ReaderPid, WriterPid, ReaderPid, Protocol, User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, + LimiterSupPid]}, intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), {ok, AState} = rabbit_command_assembler:init(Protocol), {ok, SupPid, {ChannelPid, AState}}; start_link({direct, Channel, ClientChannelPid, ConnPid, Protocol, User, VHost, Capabilities, Collector}) -> {ok, SupPid} = supervisor2:start_link(?MODULE, []), + {ok, LimiterSupPid} = start_limiter_sup(SupPid), {ok, ChannelPid} = supervisor2:start_child( SupPid, {channel, {rabbit_channel, start_link, [Channel, ClientChannelPid, ClientChannelPid, ConnPid, Protocol, User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, + LimiterSupPid]}, intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), {ok, SupPid, {ChannelPid, none}}. @@ -82,12 +84,8 @@ start_link({direct, Channel, ClientChannelPid, ConnPid, Protocol, User, VHost, init([]) -> {ok, {{one_for_all, 0, 1}, []}}. -start_limiter_fun(SupPid) -> - fun (UnackedCount) -> - Me = self(), - {ok, _Pid} = - supervisor2:start_child( - SupPid, - {limiter, {rabbit_limiter, start_link, [Me, UnackedCount]}, - transient, ?MAX_WAIT, worker, [rabbit_limiter]}) - end. +start_limiter_sup(SupPid) -> + supervisor2:start_child( + SupPid, + {limiter_sup, {rabbit_limiter_sup, start_link, []}, + intrinsic, ?MAX_WAIT, supervisor, [rabbit_limiter_sup]}). diff --git a/src/rabbit_limiter_sup.erl b/src/rabbit_limiter_sup.erl new file mode 100644 index 00000000..305c6399 --- /dev/null +++ b/src/rabbit_limiter_sup.erl @@ -0,0 +1,49 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2011 VMware, Inc. All rights reserved. +%% + +-module(rabbit_limiter_sup). + +-behaviour(supervisor2). + +-export([start_link/0, start_limiter/3]). + +-export([init/1]). + +-include("rabbit.hrl"). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start_link/0 :: () -> rabbit_types:ok(pid())). +-spec(start_limiter/3 :: (pid(), pid(), integer()) -> rabbit_types:ok(pid())). + +-endif. + +%%---------------------------------------------------------------------------- + +start_link() -> + supervisor2:start_link(?MODULE, []). + +start_limiter(Pid, Channel, UnackedCount) -> + supervisor2:start_child(Pid, [Channel, UnackedCount]). + +%%---------------------------------------------------------------------------- + +init([]) -> + {ok, {{simple_one_for_one, 0, 1}, + [{limiter, {rabbit_limiter, start_link, []}, + transient, ?MAX_WAIT, worker, [rabbit_limiter]}]}}. -- cgit v1.2.1 From a080b483fde3e6b8872428eba6fcb970f9463c6f Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 29 Jul 2011 11:41:45 +0100 Subject: Implement more magical msg_store. --- src/rabbit_msg_store.erl | 133 +++++++++++++++++++++++++++++++++++------------ 1 file changed, 101 insertions(+), 32 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 3f4162cd..bb343f8f 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -420,7 +420,7 @@ client_ref(#client_msstate { client_ref = Ref }) -> Ref. write(MsgId, Msg, CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts, client_ref = CRef }) -> - ok = update_msg_cache(CurFileCacheEts, MsgId, Msg), + ok = update_msg_cache(CurFileCacheEts, MsgId, Msg, 1), ok = server_cast(CState, {write, CRef, MsgId}). read(MsgId, @@ -687,6 +687,7 @@ prioritise_cast(Msg, _State) -> {delete_file, _File, _Reclaimed} -> 8; {set_maximum_since_use, _Age} -> 8; {client_dying, _Pid} -> 7; + {remove, _CRef, _MsgIds} -> 3; _ -> 0 end. @@ -729,27 +730,77 @@ handle_cast({client_delete, CRef}, State = #msstate { clients = Clients }) -> handle_cast({write, CRef, MsgId}, State = #msstate { cur_file_cache_ets = CurFileCacheEts }) -> - true = 0 =< ets:update_counter(CurFileCacheEts, MsgId, {3, -1}), - [{MsgId, Msg, _CacheRefCount}] = ets:lookup(CurFileCacheEts, MsgId), - noreply( - case write_action(should_mask_action(CRef, MsgId, State), MsgId, State) of - {write, State1} -> - write_message(CRef, MsgId, Msg, State1); - {ignore, CurFile, State1 = #msstate { current_file = CurFile }} -> - State1; - {ignore, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), - State1; - {confirm, CurFile, State1 = #msstate { current_file = CurFile }}-> - record_pending_confirm(CRef, MsgId, State1); - {confirm, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), - update_pending_confirms( - fun (MsgOnDiskFun, CTM) -> - MsgOnDiskFun(gb_sets:singleton(MsgId), written), - CTM - end, CRef, State1) - end); + try + case 0 =< ets:update_counter(CurFileCacheEts, MsgId, {3, -1}) of + true -> + [{MsgId, Msg, _CacheRefCount}] = + ets:lookup(CurFileCacheEts, MsgId), + true = Msg =/= undefined, %% ASSERTION + noreply( + case write_action(should_mask_action(CRef, MsgId, State), + MsgId, State) of + {write, State1} -> + write_message(CRef, MsgId, Msg, State1); + {ignore, CurFile, + State1 = #msstate { current_file = CurFile }} -> + State1; + {ignore, _File, State1} -> + true = ets:delete_object(CurFileCacheEts, + {MsgId, Msg, 0}), + State1; + {confirm, CurFile, + State1 = #msstate { current_file = CurFile }} -> + record_pending_confirm(CRef, MsgId, State1); + {confirm, _File, State1} -> + true = ets:delete_object(CurFileCacheEts, + {MsgId, Msg, 0}), + update_pending_confirms( + fun (MsgOnDiskFun, CTM) -> + MsgOnDiskFun(gb_sets:singleton(MsgId), + written), + CTM + end, CRef, State1) + end); + false -> + %% The remove overtook the write, thus when we do the + %% -1 above, we ended up with a negative number + %% because the remove would have put in -1, then the + %% write on the client would have pushed that up to 0, + %% and now we're back to -1. So we need to do nothing + %% here, other than to undo the -1 we just attempted. + ets:update_counter(CurFileCacheEts, MsgId, {3, +1}), + true = ets:match_delete(CurFileCacheEts, {MsgId, '_', 0}), + noreply(State) + end + catch error:badarg -> + %% A remove overtook a write, but other writes were going + %% on which meant that one of the ets:delete_object calls + %% above removed the entry from the CurFileCacheEts. Hence + %% the badarg. Something like: + %% + %% q1 sent write (pending write count: 1), + %% q2 sent write (pending write count: 2), + %% q3 sent write (pending write count: 3), + %% + %% q1 sends remove, which overtakes all writes and is + %% processed by msg_store, which does not know about + %% the msg yet: now pending write count is 2, + %% + %% msg store processes q1's write (pending write count: 1 + %% and msg store now knows about msg) + %% + %% msg store processes q2's write (pending write count + %% falls to 0 and, because we already know about the + %% msg we fall into the lower 'confirm' branch and do + %% the ets:delete_object) + %% + %% msg store processes q3's write. But it can't do the + %% ets:update_counter and so we get badarg and end up + %% here. Note though that at this point, the msg_store + %% knows of the msg, and the msg has a refcount of 2, + %% which is exactly what is required. + noreply(State) + end; handle_cast({remove, CRef, MsgIds}, State) -> State1 = lists:foldl( @@ -1024,7 +1075,8 @@ contains_message(MsgId, From, end. remove_message(MsgId, CRef, - State = #msstate { file_summary_ets = FileSummaryEts }) -> + State = #msstate { file_summary_ets = FileSummaryEts, + cur_file_cache_ets = CurFileCacheEts }) -> case should_mask_action(CRef, MsgId, State) of {true, _Location} -> State; @@ -1057,7 +1109,21 @@ remove_message(MsgId, CRef, end; _ -> ok = Dec(), State - end + end; + {_Mask, _} -> + %% Either: + %% + %% a) The remove has overtaken the write and we have not + %% seen this msg before, so cancel out a pending write; + %% + %% b) The remove has overtaken the write and we have seen + %% this msg before but an equal number of writes and + %% removes have left it with a refcount of 0. Rather than + %% try to cope with negative refcounts, instead, again we + %% just cancel out a pending write. + ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), + true = ets:match_delete(CurFileCacheEts, {MsgId, '_', 0}), + State end. add_to_pending_gc_completion( @@ -1088,9 +1154,6 @@ safe_ets_update_counter(Tab, Key, UpdateOp, SuccessFun, FailThunk) -> catch error:badarg -> FailThunk() end. -safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> - safe_ets_update_counter(Tab, Key, UpdateOp, fun (_) -> ok end, FailThunk). - adjust_valid_total_size(File, Delta, State = #msstate { sum_valid_data = SumValid, file_summary_ets = FileSummaryEts }) -> @@ -1278,12 +1341,18 @@ list_sorted_file_names(Dir, Ext) -> %% message cache helper functions %%---------------------------------------------------------------------------- -update_msg_cache(CacheEts, MsgId, Msg) -> - case ets:insert_new(CacheEts, {MsgId, Msg, 1}) of +update_msg_cache(CacheEts, MsgId, Msg, N) -> + case ets:insert_new(CacheEts, {MsgId, Msg, N}) of true -> ok; - false -> safe_ets_update_counter_ok( - CacheEts, MsgId, {3, +1}, - fun () -> update_msg_cache(CacheEts, MsgId, Msg) end) + false -> safe_ets_update_counter( + CacheEts, MsgId, {3, N}, + fun (1) when N > 0 -> + true = ets:update_element(CacheEts, MsgId, {2, Msg}), + ok; + (_) -> + ok + end, + fun () -> update_msg_cache(CacheEts, MsgId, Msg, N) end) end. %%---------------------------------------------------------------------------- -- cgit v1.2.1 From 99284e985a935e0e765737593fd550fc07e7f2f2 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 29 Jul 2011 12:11:22 +0100 Subject: Restrict input, otherwise the logic in the function makes very little sense --- src/rabbit_msg_store.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index bb343f8f..cd240206 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1341,7 +1341,7 @@ list_sorted_file_names(Dir, Ext) -> %% message cache helper functions %%---------------------------------------------------------------------------- -update_msg_cache(CacheEts, MsgId, Msg, N) -> +update_msg_cache(CacheEts, MsgId, Msg, N) when N =:= -1 orelse N =:= 1 -> case ets:insert_new(CacheEts, {MsgId, Msg, N}) of true -> ok; false -> safe_ets_update_counter( -- cgit v1.2.1 From 97ca376bbdd5f3fbaa48fcee6322e9769f2a11c4 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 29 Jul 2011 18:02:47 +0100 Subject: Fixed --- src/rabbit_msg_store.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index cd240206..000b85ad 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -743,8 +743,10 @@ handle_cast({write, CRef, MsgId}, write_message(CRef, MsgId, Msg, State1); {ignore, CurFile, State1 = #msstate { current_file = CurFile }} -> + ets:update_counter(CurFileCacheEts, MsgId, {3, +1}), State1; {ignore, _File, State1} -> + ets:update_counter(CurFileCacheEts, MsgId, {3, +1}), true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), State1; @@ -769,7 +771,6 @@ handle_cast({write, CRef, MsgId}, %% and now we're back to -1. So we need to do nothing %% here, other than to undo the -1 we just attempted. ets:update_counter(CurFileCacheEts, MsgId, {3, +1}), - true = ets:match_delete(CurFileCacheEts, {MsgId, '_', 0}), noreply(State) end catch error:badarg -> @@ -1122,7 +1123,6 @@ remove_message(MsgId, CRef, %% try to cope with negative refcounts, instead, again we %% just cancel out a pending write. ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), - true = ets:match_delete(CurFileCacheEts, {MsgId, '_', 0}), State end. -- cgit v1.2.1 From 1e093d7fbaba17ebec3eb6ba5aae07c02fb41e9f Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 29 Jul 2011 18:26:28 +0100 Subject: Even more fixed --- src/rabbit_msg_store.erl | 1 + 1 file changed, 1 insertion(+) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 000b85ad..9608a847 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1080,6 +1080,7 @@ remove_message(MsgId, CRef, cur_file_cache_ets = CurFileCacheEts }) -> case should_mask_action(CRef, MsgId, State) of {true, _Location} -> + ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), State; {false_if_increment, #msg_location { ref_count = 0 }} -> %% CRef has tried to both write and remove this msg -- cgit v1.2.1 From a80a4a609f74799453328ad9f0e185c8b92166f9 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Sun, 31 Jul 2011 23:33:22 +0100 Subject: Much closer to being correct. Still some issues to figure out however. --- src/rabbit_msg_store.erl | 105 ++++++++++++++++++++++++----------------------- 1 file changed, 53 insertions(+), 52 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 9608a847..87243864 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -730,50 +730,8 @@ handle_cast({client_delete, CRef}, State = #msstate { clients = Clients }) -> handle_cast({write, CRef, MsgId}, State = #msstate { cur_file_cache_ets = CurFileCacheEts }) -> - try - case 0 =< ets:update_counter(CurFileCacheEts, MsgId, {3, -1}) of - true -> - [{MsgId, Msg, _CacheRefCount}] = - ets:lookup(CurFileCacheEts, MsgId), - true = Msg =/= undefined, %% ASSERTION - noreply( - case write_action(should_mask_action(CRef, MsgId, State), - MsgId, State) of - {write, State1} -> - write_message(CRef, MsgId, Msg, State1); - {ignore, CurFile, - State1 = #msstate { current_file = CurFile }} -> - ets:update_counter(CurFileCacheEts, MsgId, {3, +1}), - State1; - {ignore, _File, State1} -> - ets:update_counter(CurFileCacheEts, MsgId, {3, +1}), - true = ets:delete_object(CurFileCacheEts, - {MsgId, Msg, 0}), - State1; - {confirm, CurFile, - State1 = #msstate { current_file = CurFile }} -> - record_pending_confirm(CRef, MsgId, State1); - {confirm, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, - {MsgId, Msg, 0}), - update_pending_confirms( - fun (MsgOnDiskFun, CTM) -> - MsgOnDiskFun(gb_sets:singleton(MsgId), - written), - CTM - end, CRef, State1) - end); - false -> - %% The remove overtook the write, thus when we do the - %% -1 above, we ended up with a negative number - %% because the remove would have put in -1, then the - %% write on the client would have pushed that up to 0, - %% and now we're back to -1. So we need to do nothing - %% here, other than to undo the -1 we just attempted. - ets:update_counter(CurFileCacheEts, MsgId, {3, +1}), - noreply(State) - end - catch error:badarg -> + case ets:lookup(CurFileCacheEts, MsgId) of + [] -> %% A remove overtook a write, but other writes were going %% on which meant that one of the ets:delete_object calls %% above removed the entry from the CurFileCacheEts. Hence @@ -795,11 +753,41 @@ handle_cast({write, CRef, MsgId}, %% msg we fall into the lower 'confirm' branch and do %% the ets:delete_object) %% - %% msg store processes q3's write. But it can't do the - %% ets:update_counter and so we get badarg and end up + %% msg store processes q3's write. But there is now no + %% entry in cur_file_cache_ets and so we end up %% here. Note though that at this point, the msg_store %% knows of the msg, and the msg has a refcount of 2, %% which is exactly what is required. + noreply(State); + [{MsgId, Msg, CacheRefCount}] when 0 < CacheRefCount -> + true = Msg =/= undefined, %% ASSERTION + noreply( + case write_action(should_mask_action(CRef, MsgId, State), MsgId, + State) of + {write, State1} -> + ets:update_counter(CurFileCacheEts, MsgId, {3, -1}), + write_message(CRef, MsgId, Msg, State1); + {ignore, CurFile, + State1 = #msstate { current_file = CurFile }} -> + State1; + {ignore, _File, State1} -> + State1; + {confirm, CurFile, + State1 = #msstate { current_file = CurFile }} -> + ets:update_counter(CurFileCacheEts, MsgId, {3, -1}), + record_pending_confirm(CRef, MsgId, State1); + {confirm, _File, State1} -> + ets:update_counter(CurFileCacheEts, MsgId, {3, -1}), + true = ets:delete_object(CurFileCacheEts, + {MsgId, Msg, 0}), + update_pending_confirms( + fun (MsgOnDiskFun, CTM) -> + MsgOnDiskFun(gb_sets:singleton(MsgId), written), + CTM + end, CRef, State1) + end); + [{MsgId, _Msg, _CacheRefCount}] -> + %% The remove overtook the write, so we do nothing here. noreply(State) end; @@ -1077,16 +1065,29 @@ contains_message(MsgId, From, remove_message(MsgId, CRef, State = #msstate { file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts }) -> + cur_file_cache_ets = CurFileCacheEts, + current_file = CurFile }) -> case should_mask_action(CRef, MsgId, State) of - {true, _Location} -> + {true, Location} -> ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), + case Location of + #msg_location { file = File } when File =/= CurFile -> + true = ets:match_delete(CurFileCacheEts, {MsgId, '_', 0}); + _ -> ok + end, State; {false_if_increment, #msg_location { ref_count = 0 }} -> - %% CRef has tried to both write and remove this msg - %% whilst it's being GC'd. ASSERTION: - %% [#file_summary { locked = true }] = - %% ets:lookup(FileSummaryEts, File), + %% CRef is dying. If this remove had a corresponding write + %% that arrived before the remove and the ref_count is 0 + %% then it can only be because the file is currently being + %% GC'd, and thus the write was masked. However, it's + %% possible the remove has arrived first. If the write got + %% to the msg_store first and was ignored due to death+GC + %% then the write wouldn't have touched the + %% CacheRefCount. In either case, it's safe here to + %% decrement the CacheRefCount as a write either before or + %% after will not touch the CacheRefCount. + ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), State; {_Mask, #msg_location { ref_count = RefCount, file = File, total_size = TotalSize }} when RefCount > 0 -> -- cgit v1.2.1 From f1202e8fe1e487e901936abb3ee4522e866c53e7 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 2 Aug 2011 11:46:44 +0100 Subject: Use pg2_fixed rather than pg_local for channels, and do a similar thing for network connections. This removes some ugliness. Note that we now need to create the groups early in the boot sequence, and we never need to leave them (dying processes are automatically removed). --- src/pg2_fixed.erl | 388 ++++++++++++++++++++++++++++++++++++++++++ src/pg_local.erl | 213 ----------------------- src/rabbit.erl | 12 +- src/rabbit_channel.erl | 11 +- src/rabbit_connection_sup.erl | 6 +- src/rabbit_networking.erl | 6 +- src/rabbit_reader.erl | 1 + src/rabbit_tests.erl | 26 --- 8 files changed, 405 insertions(+), 258 deletions(-) create mode 100644 src/pg2_fixed.erl delete mode 100644 src/pg_local.erl diff --git a/src/pg2_fixed.erl b/src/pg2_fixed.erl new file mode 100644 index 00000000..224715eb --- /dev/null +++ b/src/pg2_fixed.erl @@ -0,0 +1,388 @@ +%% This is the version of pg2 from R14B02, which contains the fix +%% described at +%% http://erlang.2086793.n4.nabble.com/pg2-still-busted-in-R13B04-td2230601.html. +%% The only changes are a search-and-replace to rename the module and +%% avoid clashes with other versions of pg2. + + +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1997-2010. All Rights Reserved. +%% +%% The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved online at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% %CopyrightEnd% +%% +-module(pg2_fixed). + +-export([create/1, delete/1, join/2, leave/2]). +-export([get_members/1, get_local_members/1]). +-export([get_closest_pid/1, which_groups/0]). +-export([start/0,start_link/0,init/1,handle_call/3,handle_cast/2,handle_info/2, + terminate/2]). + +%%% As of R13B03 monitors are used instead of links. + +%%% +%%% Exported functions +%%% + +-spec start_link() -> {'ok', pid()} | {'error', term()}. + +start_link() -> + gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). + +-spec start() -> {'ok', pid()} | {'error', term()}. + +start() -> + ensure_started(). + +-spec create(term()) -> 'ok'. + +create(Name) -> + ensure_started(), + case ets:member(pg2_fixed_table, {group, Name}) of + false -> + global:trans({{?MODULE, Name}, self()}, + fun() -> + gen_server:multi_call(?MODULE, {create, Name}) + end), + ok; + true -> + ok + end. + +-type name() :: term(). + +-spec delete(name()) -> 'ok'. + +delete(Name) -> + ensure_started(), + global:trans({{?MODULE, Name}, self()}, + fun() -> + gen_server:multi_call(?MODULE, {delete, Name}) + end), + ok. + +-spec join(name(), pid()) -> 'ok' | {'error', {'no_such_group', term()}}. + +join(Name, Pid) when is_pid(Pid) -> + ensure_started(), + case ets:member(pg2_fixed_table, {group, Name}) of + false -> + {error, {no_such_group, Name}}; + true -> + global:trans({{?MODULE, Name}, self()}, + fun() -> + gen_server:multi_call(?MODULE, + {join, Name, Pid}) + end), + ok + end. + +-spec leave(name(), pid()) -> 'ok' | {'error', {'no_such_group', name()}}. + +leave(Name, Pid) when is_pid(Pid) -> + ensure_started(), + case ets:member(pg2_fixed_table, {group, Name}) of + false -> + {error, {no_such_group, Name}}; + true -> + global:trans({{?MODULE, Name}, self()}, + fun() -> + gen_server:multi_call(?MODULE, + {leave, Name, Pid}) + end), + ok + end. + +-type get_members_ret() :: [pid()] | {'error', {'no_such_group', name()}}. + +-spec get_members(name()) -> get_members_ret(). + +get_members(Name) -> + ensure_started(), + case ets:member(pg2_fixed_table, {group, Name}) of + true -> + group_members(Name); + false -> + {error, {no_such_group, Name}} + end. + +-spec get_local_members(name()) -> get_members_ret(). + +get_local_members(Name) -> + ensure_started(), + case ets:member(pg2_fixed_table, {group, Name}) of + true -> + local_group_members(Name); + false -> + {error, {no_such_group, Name}} + end. + +-spec which_groups() -> [name()]. + +which_groups() -> + ensure_started(), + all_groups(). + +-type gcp_error_reason() :: {'no_process', term()} | {'no_such_group', term()}. + +-spec get_closest_pid(term()) -> pid() | {'error', gcp_error_reason()}. + +get_closest_pid(Name) -> + case get_local_members(Name) of + [Pid] -> + Pid; + [] -> + {_,_,X} = erlang:now(), + case get_members(Name) of + [] -> {error, {no_process, Name}}; + Members -> + lists:nth((X rem length(Members))+1, Members) + end; + Members when is_list(Members) -> + {_,_,X} = erlang:now(), + lists:nth((X rem length(Members))+1, Members); + Else -> + Else + end. + +%%% +%%% Callback functions from gen_server +%%% + +-record(state, {}). + +-spec init([]) -> {'ok', #state{}}. + +init([]) -> + Ns = nodes(), + net_kernel:monitor_nodes(true), + lists:foreach(fun(N) -> + {?MODULE, N} ! {new_pg2_fixed, node()}, + self() ! {nodeup, N} + end, Ns), + pg2_fixed_table = ets:new(pg2_fixed_table, [ordered_set, protected, named_table]), + {ok, #state{}}. + +-type call() :: {'create', name()} + | {'delete', name()} + | {'join', name(), pid()} + | {'leave', name(), pid()}. + +-spec handle_call(call(), _, #state{}) -> + {'reply', 'ok', #state{}}. + +handle_call({create, Name}, _From, S) -> + assure_group(Name), + {reply, ok, S}; +handle_call({join, Name, Pid}, _From, S) -> + ets:member(pg2_fixed_table, {group, Name}) andalso join_group(Name, Pid), + {reply, ok, S}; +handle_call({leave, Name, Pid}, _From, S) -> + ets:member(pg2_fixed_table, {group, Name}) andalso leave_group(Name, Pid), + {reply, ok, S}; +handle_call({delete, Name}, _From, S) -> + delete_group(Name), + {reply, ok, S}; +handle_call(Request, From, S) -> + error_logger:warning_msg("The pg2_fixed server received an unexpected message:\n" + "handle_call(~p, ~p, _)\n", + [Request, From]), + {noreply, S}. + +-type all_members() :: [[name(),...]]. +-type cast() :: {'exchange', node(), all_members()} + | {'del_member', name(), pid()}. + +-spec handle_cast(cast(), #state{}) -> {'noreply', #state{}}. + +handle_cast({exchange, _Node, List}, S) -> + store(List), + {noreply, S}; +handle_cast(_, S) -> + %% Ignore {del_member, Name, Pid}. + {noreply, S}. + +-spec handle_info(tuple(), #state{}) -> {'noreply', #state{}}. + +handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S) -> + member_died(MonitorRef), + {noreply, S}; +handle_info({nodeup, Node}, S) -> + gen_server:cast({?MODULE, Node}, {exchange, node(), all_members()}), + {noreply, S}; +handle_info({new_pg2_fixed, Node}, S) -> + gen_server:cast({?MODULE, Node}, {exchange, node(), all_members()}), + {noreply, S}; +handle_info(_, S) -> + {noreply, S}. + +-spec terminate(term(), #state{}) -> 'ok'. + +terminate(_Reason, _S) -> + true = ets:delete(pg2_fixed_table), + ok. + +%%% +%%% Local functions +%%% + +%%% One ETS table, pg2_fixed_table, is used for bookkeeping. The type of the +%%% table is ordered_set, and the fast matching of partially +%%% instantiated keys is used extensively. +%%% +%%% {{group, Name}} +%%% Process group Name. +%%% {{ref, Pid}, RPid, MonitorRef, Counter} +%%% {{ref, MonitorRef}, Pid} +%%% Each process has one monitor. Sometimes a process is spawned to +%%% monitor the pid (RPid). Counter is incremented when the Pid joins +%%% some group. +%%% {{member, Name, Pid}, GroupCounter} +%%% {{local_member, Name, Pid}} +%%% Pid is a member of group Name, GroupCounter is incremented when the +%%% Pid joins the group Name. +%%% {{pid, Pid, Name}} +%%% Pid is a member of group Name. + +store(List) -> + _ = [(assure_group(Name) + andalso + [join_group(Name, P) || P <- Members -- group_members(Name)]) || + [Name, Members] <- List], + ok. + +assure_group(Name) -> + Key = {group, Name}, + ets:member(pg2_fixed_table, Key) orelse true =:= ets:insert(pg2_fixed_table, {Key}). + +delete_group(Name) -> + _ = [leave_group(Name, Pid) || Pid <- group_members(Name)], + true = ets:delete(pg2_fixed_table, {group, Name}), + ok. + +member_died(Ref) -> + [{{ref, Ref}, Pid}] = ets:lookup(pg2_fixed_table, {ref, Ref}), + Names = member_groups(Pid), + _ = [leave_group(Name, P) || + Name <- Names, + P <- member_in_group(Pid, Name)], + %% Kept for backward compatibility with links. Can be removed, eventually. + _ = [gen_server:abcast(nodes(), ?MODULE, {del_member, Name, Pid}) || + Name <- Names], + ok. + +join_group(Name, Pid) -> + Ref_Pid = {ref, Pid}, + try _ = ets:update_counter(pg2_fixed_table, Ref_Pid, {4, +1}) + catch _:_ -> + {RPid, Ref} = do_monitor(Pid), + true = ets:insert(pg2_fixed_table, {Ref_Pid, RPid, Ref, 1}), + true = ets:insert(pg2_fixed_table, {{ref, Ref}, Pid}) + end, + Member_Name_Pid = {member, Name, Pid}, + try _ = ets:update_counter(pg2_fixed_table, Member_Name_Pid, {2, +1, 1, 1}) + catch _:_ -> + true = ets:insert(pg2_fixed_table, {Member_Name_Pid, 1}), + _ = [ets:insert(pg2_fixed_table, {{local_member, Name, Pid}}) || + node(Pid) =:= node()], + true = ets:insert(pg2_fixed_table, {{pid, Pid, Name}}) + end. + +leave_group(Name, Pid) -> + Member_Name_Pid = {member, Name, Pid}, + try ets:update_counter(pg2_fixed_table, Member_Name_Pid, {2, -1, 0, 0}) of + N -> + if + N =:= 0 -> + true = ets:delete(pg2_fixed_table, {pid, Pid, Name}), + _ = [ets:delete(pg2_fixed_table, {local_member, Name, Pid}) || + node(Pid) =:= node()], + true = ets:delete(pg2_fixed_table, Member_Name_Pid); + true -> + ok + end, + Ref_Pid = {ref, Pid}, + case ets:update_counter(pg2_fixed_table, Ref_Pid, {4, -1}) of + 0 -> + [{Ref_Pid,RPid,Ref,0}] = ets:lookup(pg2_fixed_table, Ref_Pid), + true = ets:delete(pg2_fixed_table, {ref, Ref}), + true = ets:delete(pg2_fixed_table, Ref_Pid), + true = erlang:demonitor(Ref, [flush]), + kill_monitor_proc(RPid, Pid); + _ -> + ok + end + catch _:_ -> + ok + end. + +all_members() -> + [[G, group_members(G)] || G <- all_groups()]. + +group_members(Name) -> + [P || + [P, N] <- ets:match(pg2_fixed_table, {{member, Name, '$1'},'$2'}), + _ <- lists:seq(1, N)]. + +local_group_members(Name) -> + [P || + [Pid] <- ets:match(pg2_fixed_table, {{local_member, Name, '$1'}}), + P <- member_in_group(Pid, Name)]. + +member_in_group(Pid, Name) -> + case ets:lookup(pg2_fixed_table, {member, Name, Pid}) of + [] -> []; + [{{member, Name, Pid}, N}] -> + lists:duplicate(N, Pid) + end. + +member_groups(Pid) -> + [Name || [Name] <- ets:match(pg2_fixed_table, {{pid, Pid, '$1'}})]. + +all_groups() -> + [N || [N] <- ets:match(pg2_fixed_table, {{group,'$1'}})]. + +ensure_started() -> + case whereis(?MODULE) of + undefined -> + C = {pg2_fixed, {?MODULE, start_link, []}, permanent, + 1000, worker, [?MODULE]}, + supervisor:start_child(kernel_safe_sup, C); + Pg2_FixedPid -> + {ok, Pg2_FixedPid} + end. + + +kill_monitor_proc(RPid, Pid) -> + RPid =:= Pid orelse exit(RPid, kill). + +%% When/if erlang:monitor() returns before trying to connect to the +%% other node this function can be removed. +do_monitor(Pid) -> + case (node(Pid) =:= node()) orelse lists:member(node(Pid), nodes()) of + true -> + %% Assume the node is still up + {Pid, erlang:monitor(process, Pid)}; + false -> + F = fun() -> + Ref = erlang:monitor(process, Pid), + receive + {'DOWN', Ref, process, Pid, _Info} -> + exit(normal) + end + end, + erlang:spawn_monitor(F) + end. diff --git a/src/pg_local.erl b/src/pg_local.erl deleted file mode 100644 index c9c3a3a7..00000000 --- a/src/pg_local.erl +++ /dev/null @@ -1,213 +0,0 @@ -%% This file is a copy of pg2.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) Process groups are node-local only. -%% -%% 2) Groups are created/deleted implicitly. -%% -%% 3) 'join' and 'leave' are asynchronous. -%% -%% 4) the type specs of the exported non-callback functions have been -%% extracted into a separate, guarded section, and rewritten in -%% old-style spec syntax, for better compatibility with older -%% versions of Erlang/OTP. The remaining type specs have been -%% removed. - -%% All modifications are (C) 2010-2011 VMware, Inc. - -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(pg_local). - --export([join/2, leave/2, get_members/1]). --export([sync/0]). %% intended for testing only; not part of official API --export([start/0, start_link/0, init/1, handle_call/3, handle_cast/2, - handle_info/2, terminate/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(name() :: term()). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(join/2 :: (name(), pid()) -> 'ok'). --spec(leave/2 :: (name(), pid()) -> 'ok'). --spec(get_members/1 :: (name()) -> [pid()]). - --spec(sync/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%%% As of R13B03 monitors are used instead of links. - -%%% -%%% Exported functions -%%% - -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). - -start() -> - ensure_started(). - -join(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {join, Name, Pid}). - -leave(Name, Pid) when is_pid(Pid) -> - ensure_started(), - gen_server:cast(?MODULE, {leave, Name, Pid}). - -get_members(Name) -> - ensure_started(), - group_members(Name). - -sync() -> - ensure_started(), - gen_server:call(?MODULE, sync, infinity). - -%%% -%%% Callback functions from gen_server -%%% - --record(state, {}). - -init([]) -> - pg_local_table = ets:new(pg_local_table, [ordered_set, protected, named_table]), - {ok, #state{}}. - -handle_call(sync, _From, S) -> - {reply, ok, S}; - -handle_call(Request, From, S) -> - error_logger:warning_msg("The pg_local server received an unexpected message:\n" - "handle_call(~p, ~p, _)\n", - [Request, From]), - {noreply, S}. - -handle_cast({join, Name, Pid}, S) -> - join_group(Name, Pid), - {noreply, S}; -handle_cast({leave, Name, Pid}, S) -> - leave_group(Name, Pid), - {noreply, S}; -handle_cast(_, S) -> - {noreply, S}. - -handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S) -> - member_died(MonitorRef), - {noreply, S}; -handle_info(_, S) -> - {noreply, S}. - -terminate(_Reason, _S) -> - true = ets:delete(pg_local_table), - ok. - -%%% -%%% Local functions -%%% - -%%% One ETS table, pg_local_table, is used for bookkeeping. The type of the -%%% table is ordered_set, and the fast matching of partially -%%% instantiated keys is used extensively. -%%% -%%% {{ref, Pid}, MonitorRef, Counter} -%%% {{ref, MonitorRef}, Pid} -%%% Each process has one monitor. Counter is incremented when the -%%% Pid joins some group. -%%% {{member, Name, Pid}, _} -%%% Pid is a member of group Name, GroupCounter is incremented when the -%%% Pid joins the group Name. -%%% {{pid, Pid, Name}} -%%% Pid is a member of group Name. - -member_died(Ref) -> - [{{ref, Ref}, Pid}] = ets:lookup(pg_local_table, {ref, Ref}), - Names = member_groups(Pid), - _ = [leave_group(Name, P) || - Name <- Names, - P <- member_in_group(Pid, Name)], - ok. - -join_group(Name, Pid) -> - Ref_Pid = {ref, Pid}, - try _ = ets:update_counter(pg_local_table, Ref_Pid, {3, +1}) - catch _:_ -> - Ref = erlang:monitor(process, Pid), - true = ets:insert(pg_local_table, {Ref_Pid, Ref, 1}), - true = ets:insert(pg_local_table, {{ref, Ref}, Pid}) - end, - Member_Name_Pid = {member, Name, Pid}, - try _ = ets:update_counter(pg_local_table, Member_Name_Pid, {2, +1}) - catch _:_ -> - true = ets:insert(pg_local_table, {Member_Name_Pid, 1}), - true = ets:insert(pg_local_table, {{pid, Pid, Name}}) - end. - -leave_group(Name, Pid) -> - Member_Name_Pid = {member, Name, Pid}, - try ets:update_counter(pg_local_table, Member_Name_Pid, {2, -1}) of - N -> - if - N =:= 0 -> - true = ets:delete(pg_local_table, {pid, Pid, Name}), - true = ets:delete(pg_local_table, Member_Name_Pid); - true -> - ok - end, - Ref_Pid = {ref, Pid}, - case ets:update_counter(pg_local_table, Ref_Pid, {3, -1}) of - 0 -> - [{Ref_Pid,Ref,0}] = ets:lookup(pg_local_table, Ref_Pid), - true = ets:delete(pg_local_table, {ref, Ref}), - true = ets:delete(pg_local_table, Ref_Pid), - true = erlang:demonitor(Ref, [flush]), - ok; - _ -> - ok - end - catch _:_ -> - ok - end. - -group_members(Name) -> - [P || - [P, N] <- ets:match(pg_local_table, {{member, Name, '$1'},'$2'}), - _ <- lists:seq(1, N)]. - -member_in_group(Pid, Name) -> - [{{member, Name, Pid}, N}] = ets:lookup(pg_local_table, {member, Name, Pid}), - lists:duplicate(N, Pid). - -member_groups(Pid) -> - [Name || [Name] <- ets:match(pg_local_table, {{pid, Pid, '$1'}})]. - -ensure_started() -> - case whereis(?MODULE) of - undefined -> - C = {pg_local, {?MODULE, start_link, []}, permanent, - 16#ffffffff, worker, [?MODULE]}, - supervisor:start_child(kernel_safe_sup, C); - PgLocalPid -> - {ok, PgLocalPid} - end. diff --git a/src/rabbit.erl b/src/rabbit.erl index 5e9c84ef..8da8dabe 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -19,7 +19,7 @@ -behaviour(application). -export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, environment/0, - rotate_logs/1, force_event_refresh/0]). + rotate_logs/1, force_event_refresh/0, ensure_process_groups/0]). -export([start/2, stop/1]). @@ -57,6 +57,12 @@ {requires, pre_boot}, {enables, external_infrastructure}]}). +-rabbit_boot_step({ensure_process_groups, + [{description, "ensuring process groups exist"}, + {mfa, {rabbit, ensure_process_groups, []}}, + {requires, pre_boot}, + {enables, external_infrastructure}]}). + -rabbit_boot_step({external_infrastructure, [{description, "external infrastructure ready"}]}). @@ -437,6 +443,10 @@ insert_default_data() -> DefaultReadPerm), ok. +ensure_process_groups() -> + [ok = pg2_fixed:create(G) || G <- [rabbit_channels, + rabbit_network_connections]]. + %%--------------------------------------------------------------------------- %% logging diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 7c8a07b9..f332018d 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -131,7 +131,7 @@ confirm(Pid, MsgSeqNos) -> gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). list() -> - pg_local:get_members(rabbit_channels). + pg2_fixed:get_members(rabbit_channels). info_keys() -> ?INFO_KEYS. @@ -162,11 +162,7 @@ ready_for_close(Pid) -> gen_server2:cast(Pid, ready_for_close). force_event_refresh() -> - %% TODO roll in bug 23897? - All = [Pid || - Node <- rabbit_mnesia:running_clustered_nodes(), - Pid <- rpc:call(Node, rabbit_channel, list, [])], - rabbit_misc:filter_exit_map(fun (C) -> force_event_refresh(C) end, All). + rabbit_misc:filter_exit_map(fun (C) -> force_event_refresh(C) end, list()). force_event_refresh(Pid) -> gen_server2:cast(Pid, force_event_refresh). @@ -176,7 +172,7 @@ force_event_refresh(Pid) -> init([Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, Capabilities, CollectorPid, StartLimiterFun]) -> process_flag(trap_exit, true), - ok = pg_local:join(rabbit_channels, self()), + ok = pg2_fixed:join(rabbit_channels, self()), StatsTimer = rabbit_event:init_stats_timer(), State = #ch{state = starting, protocol = Protocol, @@ -354,7 +350,6 @@ terminate(Reason, State) -> {shutdown, _Term} -> ok = Res; _ -> ok end, - pg_local:leave(rabbit_channels, self()), rabbit_event:notify(channel_closed, [{pid, self()}]). code_change(_OldVsn, State, _Extra) -> diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl index b2aba2ee..302938a2 100644 --- a/src/rabbit_connection_sup.erl +++ b/src/rabbit_connection_sup.erl @@ -18,7 +18,7 @@ -behaviour(supervisor2). --export([start_link/0, reader/1]). +-export([start_link/0]). -export([init/1]). @@ -29,7 +29,6 @@ -ifdef(use_specs). -spec(start_link/0 :: () -> {'ok', pid(), pid()}). --spec(reader/1 :: (pid()) -> pid()). -endif. @@ -56,9 +55,6 @@ start_link() -> intrinsic, ?MAX_WAIT, worker, [rabbit_reader]}), {ok, SupPid, ReaderPid}. -reader(Pid) -> - hd(supervisor2:find_child(Pid, reader)). - %%-------------------------------------------------------------------------- init([]) -> diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index a75a5fc0..a10c021c 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -271,11 +271,7 @@ start_client(Sock) -> start_ssl_client(SslOpts, Sock) -> start_client(Sock, ssl_transform_fun(SslOpts)). -connections() -> - [rabbit_connection_sup:reader(ConnSup) || - Node <- rabbit_mnesia:running_clustered_nodes(), - {_, ConnSup, supervisor, _} - <- supervisor:which_children({rabbit_tcp_client_sup, Node})]. +connections() -> pg2_fixed:get_members(rabbit_network_connections). connection_info_keys() -> rabbit_reader:info_keys(). diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index b322af73..11ad62e0 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -99,6 +99,7 @@ shutdown(Pid, Explanation) -> gen_server:call(Pid, {shutdown, Explanation}, infinity). init(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun) -> + ok = pg2_fixed:join(rabbit_network_connections, self()), Deb = sys:debug_options([]), receive {go, Sock, SockTransform} -> diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 2a3ced92..f7689e37 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -42,7 +42,6 @@ all_tests() -> passed = test_backing_queue(), passed = test_priority_queue(), passed = test_bpqueue(), - passed = test_pg_local(), passed = test_unfold(), passed = test_supervisor_delayed_restart(), passed = test_parsing(), @@ -401,31 +400,6 @@ test_simple_n_element_queue(N) -> {true, false, N, ToListRes, Items} = test_priority_queue(Q), passed. -test_pg_local() -> - [P, Q] = [spawn(fun () -> receive X -> X end end) || _ <- [x, x]], - check_pg_local(ok, [], []), - check_pg_local(pg_local:join(a, P), [P], []), - check_pg_local(pg_local:join(b, P), [P], [P]), - check_pg_local(pg_local:join(a, P), [P, P], [P]), - check_pg_local(pg_local:join(a, Q), [P, P, Q], [P]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q]), - check_pg_local(pg_local:join(b, Q), [P, P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(a, P), [P, Q], [P, Q, Q]), - check_pg_local(pg_local:leave(b, P), [P, Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - check_pg_local(pg_local:leave(a, P), [Q], [Q, Q]), - [begin X ! done, - Ref = erlang:monitor(process, X), - receive {'DOWN', Ref, process, X, _Info} -> ok end - end || X <- [P, Q]], - check_pg_local(ok, [], []), - passed. - -check_pg_local(ok, APids, BPids) -> - ok = pg_local:sync(), - [true, true] = [lists:sort(Pids) == lists:sort(pg_local:get_members(Key)) || - {Key, Pids} <- [{a, APids}, {b, BPids}]]. - test_unfold() -> {[], test} = rabbit_misc:unfold(fun (_V) -> false end, test), List = lists:seq(2,20,2), -- cgit v1.2.1 From 0a32288259079f6be40a5fec519234cc0a06afc0 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 2 Aug 2011 12:36:01 +0100 Subject: ...and do the same for direct connections. The use of a bare gen_server:call/3 when the broker talks to the erlang client is a bit ugly, but I don't see a better option given where the boundary lies between them. --- src/rabbit.erl | 4 +++- src/rabbit_direct.erl | 24 +++++++++++++++++++----- 2 files changed, 22 insertions(+), 6 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 8da8dabe..c6e1d13b 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -445,7 +445,8 @@ insert_default_data() -> ensure_process_groups() -> [ok = pg2_fixed:create(G) || G <- [rabbit_channels, - rabbit_network_connections]]. + rabbit_network_connections, + rabbit_direct_connections]]. %%--------------------------------------------------------------------------- %% logging @@ -525,6 +526,7 @@ log_rotation_result(ok, ok) -> force_event_refresh() -> rabbit_networking:force_connection_event_refresh(), + rabbit_direct:force_event_refresh(), rabbit_channel:force_event_refresh(), rabbit_amqqueue:force_event_refresh(). diff --git a/src/rabbit_direct.erl b/src/rabbit_direct.erl index 7ff534ee..d4a2d70d 100644 --- a/src/rabbit_direct.erl +++ b/src/rabbit_direct.erl @@ -16,7 +16,8 @@ -module(rabbit_direct). --export([boot/0, connect/4, start_channel/8, disconnect/1]). +-export([boot/0, connect/5, start_channel/8, disconnect/1, + force_event_refresh/0]). -include("rabbit.hrl"). @@ -25,8 +26,9 @@ -ifdef(use_specs). -spec(boot/0 :: () -> 'ok'). --spec(connect/4 :: (rabbit_types:username(), rabbit_types:vhost(), - rabbit_types:protocol(), rabbit_event:event_props()) -> +-spec(connect/5 :: (rabbit_types:username(), rabbit_types:vhost(), + rabbit_types:protocol(), rabbit_event:event_props(), + pid()) -> {'ok', {rabbit_types:user(), rabbit_framing:amqp_table()}}). -spec(start_channel/8 :: @@ -35,6 +37,7 @@ pid()) -> {'ok', pid()}). -spec(disconnect/1 :: (rabbit_event:event_props()) -> 'ok'). +-spec(force_event_refresh/0 :: () -> 'ok'). -endif. @@ -53,13 +56,14 @@ boot() -> %%---------------------------------------------------------------------------- -connect(Username, VHost, Protocol, Infos) -> +connect(Username, VHost, Protocol, Infos, Pid) -> case lists:keymember(rabbit, 1, application:which_applications()) of true -> case rabbit_access_control:check_user_login(Username, []) of {ok, User} -> try rabbit_access_control:check_vhost_access(User, VHost) of - ok -> rabbit_event:notify(connection_created, Infos), + ok -> pg2_fixed:join(rabbit_direct_connections, Pid), + rabbit_event:notify(connection_created, Infos), {ok, {User, rabbit_reader:server_properties(Protocol)}} catch @@ -84,3 +88,13 @@ start_channel(Number, ClientChannelPid, ConnPid, Protocol, User, VHost, disconnect(Infos) -> rabbit_event:notify(connection_closed, Infos). + +force_event_refresh() -> + rabbit_misc:filter_exit_map(fun (C) -> force_event_refresh(C) end, list()). + +list() -> pg2_fixed:get_members(rabbit_direct_connections). + +force_event_refresh(Pid) -> + [{created_event, Ev}] = + gen_server:call(Pid, {info, [created_event]}, infinity), + rabbit_event:notify(connection_exists, Ev). -- cgit v1.2.1 From 73e091fcac8e68179a95accc91dc4fa6a2d06bba Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 2 Aug 2011 12:50:46 +0100 Subject: "starting ensuring process groups exist" does not make sense. --- src/rabbit.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index c6e1d13b..392bbb88 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -58,7 +58,7 @@ {enables, external_infrastructure}]}). -rabbit_boot_step({ensure_process_groups, - [{description, "ensuring process groups exist"}, + [{description, "process groups"}, {mfa, {rabbit, ensure_process_groups, []}}, {requires, pre_boot}, {enables, external_infrastructure}]}). -- cgit v1.2.1 From 57ae134e88e678d3cca950bc94809396d48701c7 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 2 Aug 2011 16:25:36 +0100 Subject: Pre-junk this: pg2 is too slow, better to grit our teeth and use the "ghastly cross-node supervisor traversal". --- INSTALL.in | 10 - LICENSE | 5 - LICENSE-MPL-RabbitMQ | 455 ---- Makefile | 332 --- README.in | 10 - calculate-relative | 45 - codegen.py | 493 ---- docs/examples-to-end.xsl | 90 - docs/html-to-website-xml.xsl | 98 - docs/rabbitmq-env.conf.5.xml | 83 - docs/rabbitmq-server.1.xml | 131 - docs/rabbitmq-service.xml | 217 -- docs/rabbitmqctl.1.xml | 1370 ----------- docs/remove-namespaces.xsl | 18 - docs/usage.xsl | 74 - ebin/rabbit_app.in | 45 - generate_app | 16 - generate_deps | 57 - include/gm_specs.hrl | 28 - include/rabbit.hrl | 101 - include/rabbit_auth_backend_spec.hrl | 31 - include/rabbit_auth_mechanism_spec.hrl | 28 - include/rabbit_backing_queue_spec.hrl | 68 - include/rabbit_exchange_type_spec.hrl | 38 - include/rabbit_msg_store.hrl | 25 - include/rabbit_msg_store_index.hrl | 45 - packaging/RPMS/Fedora/Makefile | 49 - packaging/RPMS/Fedora/rabbitmq-server.logrotate | 12 - packaging/RPMS/Fedora/rabbitmq-server.spec | 205 -- packaging/common/rabbitmq-script-wrapper | 42 - packaging/common/rabbitmq-server.init | 154 -- packaging/common/rabbitmq-server.ocf | 341 --- packaging/debs/Debian/Makefile | 45 - packaging/debs/Debian/check-changelog.sh | 29 - packaging/debs/Debian/debian/changelog | 174 -- packaging/debs/Debian/debian/compat | 1 - packaging/debs/Debian/debian/control | 15 - packaging/debs/Debian/debian/copyright | 502 ---- packaging/debs/Debian/debian/dirs | 9 - packaging/debs/Debian/debian/postinst | 60 - packaging/debs/Debian/debian/postrm.in | 73 - .../debs/Debian/debian/rabbitmq-server.logrotate | 12 - packaging/debs/Debian/debian/rules | 21 - packaging/debs/Debian/debian/watch | 4 - packaging/debs/apt-repository/Makefile | 28 - packaging/debs/apt-repository/README | 17 - .../debs/apt-repository/README-real-repository | 130 - packaging/debs/apt-repository/distributions | 7 - packaging/debs/apt-repository/dupload.conf | 16 - packaging/generic-unix/Makefile | 23 - packaging/macports/Makefile | 59 - packaging/macports/Portfile.in | 116 - packaging/macports/make-checksums.sh | 14 - packaging/macports/make-port-diff.sh | 27 - .../patch-org.macports.rabbitmq-server.plist.diff | 10 - packaging/windows-exe/Makefile | 16 - packaging/windows-exe/rabbitmq.ico | Bin 4286 -> 0 bytes packaging/windows-exe/rabbitmq_nsi.in | 237 -- packaging/windows/Makefile | 35 - quickcheck | 36 - scripts/rabbitmq-env | 45 - scripts/rabbitmq-server | 117 - scripts/rabbitmq-server.bat | 156 -- scripts/rabbitmq-service.bat | 245 -- scripts/rabbitmqctl | 31 - scripts/rabbitmqctl.bat | 49 - src/bpqueue.erl | 271 --- src/delegate.erl | 154 -- src/delegate_sup.erl | 59 - src/file_handle_cache.erl | 1197 ---------- src/gatherer.erl | 130 - src/gen_server2.erl | 1181 --------- src/gm.erl | 1379 ----------- src/gm_soak_test.erl | 131 - src/gm_speed_test.erl | 82 - src/gm_tests.erl | 182 -- src/pg2_fixed.erl | 388 --- src/priority_queue.erl | 194 -- src/rabbit.erl | 601 ----- src/rabbit_access_control.erl | 103 - src/rabbit_alarm.erl | 166 -- src/rabbit_amqqueue.erl | 553 ----- src/rabbit_amqqueue_process.erl | 1185 --------- src/rabbit_amqqueue_sup.erl | 38 - src/rabbit_auth_backend.erl | 57 - src/rabbit_auth_backend_internal.erl | 333 --- src/rabbit_auth_mechanism.erl | 46 - src/rabbit_auth_mechanism_amqplain.erl | 58 - src/rabbit_auth_mechanism_cr_demo.erl | 60 - src/rabbit_auth_mechanism_plain.erl | 76 - src/rabbit_backing_queue.erl | 171 -- src/rabbit_backing_queue_qc.erl | 392 --- src/rabbit_basic.erl | 197 -- src/rabbit_binary_generator.erl | 337 --- src/rabbit_binary_parser.erl | 165 -- src/rabbit_binding.erl | 455 ---- src/rabbit_channel.erl | 1534 ------------ src/rabbit_channel_sup.erl | 93 - src/rabbit_channel_sup_sup.erl | 48 - src/rabbit_client_sup.erl | 48 - src/rabbit_command_assembler.erl | 133 -- src/rabbit_connection_sup.erl | 61 - src/rabbit_control.erl | 476 ---- src/rabbit_direct.erl | 86 - src/rabbit_error_logger.erl | 78 - src/rabbit_error_logger_file_h.erl | 68 - src/rabbit_event.erl | 139 -- src/rabbit_exchange.erl | 359 --- src/rabbit_exchange_type.erl | 54 - src/rabbit_exchange_type_direct.erl | 50 - src/rabbit_exchange_type_fanout.erl | 49 - src/rabbit_exchange_type_headers.erl | 123 - src/rabbit_exchange_type_topic.erl | 278 --- src/rabbit_framing.erl | 49 - src/rabbit_guid.erl | 119 - src/rabbit_heartbeat.erl | 149 -- src/rabbit_limiter.erl | 233 -- src/rabbit_log.erl | 132 - src/rabbit_memory_monitor.erl | 280 --- src/rabbit_mirror_queue_coordinator.erl | 395 --- src/rabbit_mirror_queue_master.erl | 390 --- src/rabbit_mirror_queue_misc.erl | 135 -- src/rabbit_mirror_queue_slave.erl | 850 ------- src/rabbit_mirror_queue_slave_sup.erl | 48 - src/rabbit_misc.erl | 944 -------- src/rabbit_mnesia.erl | 746 ------ src/rabbit_msg_file.erl | 125 - src/rabbit_msg_store.erl | 1944 --------------- src/rabbit_msg_store_ets_index.erl | 79 - src/rabbit_msg_store_gc.erl | 137 -- src/rabbit_msg_store_index.erl | 32 - src/rabbit_net.erl | 143 -- src/rabbit_networking.erl | 398 ---- src/rabbit_node_monitor.erl | 102 - src/rabbit_prelaunch.erl | 286 --- src/rabbit_queue_collector.erl | 92 - src/rabbit_queue_index.erl | 1070 --------- src/rabbit_reader.erl | 938 -------- src/rabbit_registry.erl | 124 - src/rabbit_restartable_sup.erl | 32 - src/rabbit_router.erl | 140 -- src/rabbit_sasl_report_file_h.erl | 81 - src/rabbit_ssl.erl | 246 -- src/rabbit_sup.erl | 64 - src/rabbit_tests.erl | 2511 -------------------- src/rabbit_tests_event_receiver.erl | 51 - src/rabbit_trace.erl | 120 - src/rabbit_types.erl | 159 -- src/rabbit_upgrade.erl | 289 --- src/rabbit_upgrade_functions.erl | 197 -- src/rabbit_variable_queue.erl | 1686 ------------- src/rabbit_version.erl | 172 -- src/rabbit_vhost.erl | 130 - src/rabbit_writer.erl | 249 -- src/supervisor2.erl | 1018 -------- src/tcp_acceptor.erl | 106 - src/tcp_acceptor_sup.erl | 31 - src/tcp_listener.erl | 84 - src/tcp_listener_sup.erl | 51 - src/test_sup.erl | 81 - src/vm_memory_monitor.erl | 366 --- src/worker_pool.erl | 140 -- src/worker_pool_sup.erl | 53 - src/worker_pool_worker.erl | 106 - 164 files changed, 39196 deletions(-) delete mode 100644 INSTALL.in delete mode 100644 LICENSE delete mode 100644 LICENSE-MPL-RabbitMQ delete mode 100644 Makefile delete mode 100644 README.in delete mode 100755 calculate-relative delete mode 100644 codegen.py delete mode 100644 docs/examples-to-end.xsl delete mode 100644 docs/html-to-website-xml.xsl delete mode 100644 docs/rabbitmq-env.conf.5.xml delete mode 100644 docs/rabbitmq-server.1.xml delete mode 100644 docs/rabbitmq-service.xml delete mode 100644 docs/rabbitmqctl.1.xml delete mode 100644 docs/remove-namespaces.xsl delete mode 100644 docs/usage.xsl delete mode 100644 ebin/rabbit_app.in delete mode 100644 generate_app delete mode 100644 generate_deps delete mode 100644 include/gm_specs.hrl delete mode 100644 include/rabbit.hrl delete mode 100644 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src/worker_pool_worker.erl diff --git a/INSTALL.in b/INSTALL.in deleted file mode 100644 index d1fa81df..00000000 --- a/INSTALL.in +++ /dev/null @@ -1,10 +0,0 @@ -Please see http://www.rabbitmq.com/install.html for install -instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/LICENSE b/LICENSE deleted file mode 100644 index 89640485..00000000 --- a/LICENSE +++ /dev/null @@ -1,5 +0,0 @@ -This package, the RabbitMQ server is licensed under the MPL. For the -MPL, please see LICENSE-MPL-RabbitMQ. - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. diff --git a/LICENSE-MPL-RabbitMQ b/LICENSE-MPL-RabbitMQ deleted file mode 100644 index 14bcc21d..00000000 --- a/LICENSE-MPL-RabbitMQ +++ /dev/null @@ -1,455 +0,0 @@ - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] diff --git a/Makefile b/Makefile deleted file mode 100644 index ee2700af..00000000 --- a/Makefile +++ /dev/null @@ -1,332 +0,0 @@ -TMPDIR ?= /tmp - -RABBITMQ_NODENAME ?= rabbit -RABBITMQ_SERVER_START_ARGS ?= -RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia -RABBITMQ_PLUGINS_EXPAND_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-plugins-scratch -RABBITMQ_LOG_BASE ?= $(TMPDIR) - -DEPS_FILE=deps.mk -SOURCE_DIR=src -EBIN_DIR=ebin -INCLUDE_DIR=include -DOCS_DIR=docs -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl -SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) -BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) -TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) -WEB_URL=http://www.rabbitmq.com/ -MANPAGES=$(patsubst %.xml, %.gz, $(wildcard $(DOCS_DIR)/*.[0-9].xml)) -WEB_MANPAGES=$(patsubst %.xml, %.man.xml, $(wildcard $(DOCS_DIR)/*.[0-9].xml) $(DOCS_DIR)/rabbitmq-service.xml) -USAGES_XML=$(DOCS_DIR)/rabbitmqctl.1.xml -USAGES_ERL=$(foreach XML, $(USAGES_XML), $(call usage_xml_to_erl, $(XML))) -QC_MODULES := rabbit_backing_queue_qc -QC_TRIALS ?= 100 - -ifeq ($(shell python -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python -else -ifeq ($(shell python2.6 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.6 -else -ifeq ($(shell python2.5 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.5 -else -# Hmm. Missing simplejson? -PYTHON=python -endif -endif -endif - -BASIC_PLT=basic.plt -RABBIT_PLT=rabbit.plt - -ifndef USE_SPECS -# our type specs rely on features and bug fixes in dialyzer that are -# only available in R14B03 upwards (R14B03 is erts 5.8.4) -USE_SPECS:=$(shell erl -noshell -eval 'io:format([list_to_integer(X) || X <- string:tokens(erlang:system_info(version), ".")] >= [5,8,4]), halt().') -endif - -ifndef USE_PROPER_QC -# PropEr needs to be installed for property checking -# http://proper.softlab.ntua.gr/ -USE_PROPER_QC:=$(shell erl -noshell -eval 'io:format({module, proper} =:= code:ensure_loaded(proper)), halt().') -endif - -#other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(call boolean_macro,$(USE_SPECS),use_specs) $(call boolean_macro,$(USE_PROPER_QC),use_proper_qc) - -VERSION=0.0.0 -TARBALL_NAME=rabbitmq-server-$(VERSION) -TARGET_SRC_DIR=dist/$(TARBALL_NAME) - -SIBLING_CODEGEN_DIR=../rabbitmq-codegen/ -AMQP_CODEGEN_DIR=$(shell [ -d $(SIBLING_CODEGEN_DIR) ] && echo $(SIBLING_CODEGEN_DIR) || echo codegen) -AMQP_SPEC_JSON_FILES_0_9_1=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.9.1.json -AMQP_SPEC_JSON_FILES_0_8=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.8.json - -ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e - -ERL_EBIN=erl -noinput -pa $(EBIN_DIR) - -define usage_xml_to_erl - $(subst __,_,$(patsubst $(DOCS_DIR)/rabbitmq%.1.xml, $(SOURCE_DIR)/rabbit_%_usage.erl, $(subst -,_,$(1)))) -endef - -define usage_dep - $(call usage_xml_to_erl, $(1)): $(1) $(DOCS_DIR)/usage.xsl -endef - -define boolean_macro -$(if $(filter true,$(1)),-D$(2)) -endef - -ifneq "$(SBIN_DIR)" "" -ifneq "$(TARGET_DIR)" "" -SCRIPTS_REL_PATH=$(shell ./calculate-relative $(TARGET_DIR)/sbin $(SBIN_DIR)) -endif -endif - -# Versions prior to this are not supported -NEED_MAKE := 3.80 -ifneq "$(NEED_MAKE)" "$(firstword $(sort $(NEED_MAKE) $(MAKE_VERSION)))" -$(error Versions of make prior to $(NEED_MAKE) are not supported) -endif - -# .DEFAULT_GOAL introduced in 3.81 -DEFAULT_GOAL_MAKE := 3.81 -ifneq "$(DEFAULT_GOAL_MAKE)" "$(firstword $(sort $(DEFAULT_GOAL_MAKE) $(MAKE_VERSION)))" -.DEFAULT_GOAL=all -endif - -all: $(TARGETS) - -$(DEPS_FILE): $(SOURCES) $(INCLUDES) - rm -f $@ - echo $(subst : ,:,$(foreach FILE,$^,$(FILE):)) | escript generate_deps $@ $(EBIN_DIR) - -$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(SOURCES) generate_app - escript generate_app $< $@ $(SOURCE_DIR) - -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl | $(DEPS_FILE) - erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< - -$(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py --ignore-conflicts header $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_9_1) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_8) $@ - -dialyze: $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --no_native \ - -Wrace_conditions $(BEAM_TARGETS) - -# rabbit.plt is used by rabbitmq-erlang-client's dialyze make target -create-plt: $(RABBIT_PLT) - -$(RABBIT_PLT): $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --output_plt $@ --no_native \ - --add_to_plt $(BEAM_TARGETS) - -$(BASIC_PLT): $(BEAM_TARGETS) - if [ -f $@ ]; then \ - touch $@; \ - else \ - dialyzer --output_plt $@ --build_plt \ - --apps erts kernel stdlib compiler sasl os_mon mnesia tools \ - public_key crypto ssl; \ - fi - -clean: - rm -f $(EBIN_DIR)/*.beam - rm -f $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script $(EBIN_DIR)/rabbit.rel - rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCE_DIR)/rabbit_framing_amqp_*.erl codegen.pyc - rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) - rm -f $(RABBIT_PLT) - rm -f $(DEPS_FILE) - -cleandb: - rm -rf $(RABBITMQ_MNESIA_DIR)/* - -############ various tasks to interact with RabbitMQ ################### - -BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\ - RABBITMQ_NODE_IP_ADDRESS="$(RABBITMQ_NODE_IP_ADDRESS)" \ - RABBITMQ_NODE_PORT="$(RABBITMQ_NODE_PORT)" \ - RABBITMQ_LOG_BASE="$(RABBITMQ_LOG_BASE)" \ - RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" \ - RABBITMQ_PLUGINS_EXPAND_DIR="$(RABBITMQ_PLUGINS_EXPAND_DIR)" - -run: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-node: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-tests: all - OUT=$$(echo "rabbit_tests:all_tests()." | $(ERL_CALL)) ; \ - echo $$OUT ; echo $$OUT | grep '^{ok, passed}$$' > /dev/null - -run-qc: all - $(foreach MOD,$(QC_MODULES),./quickcheck $(RABBITMQ_NODENAME) $(MOD) $(QC_TRIALS)) - -start-background-node: - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server; sleep 1 - -start-rabbit-on-node: all - echo "rabbit:start()." | $(ERL_CALL) - -stop-rabbit-on-node: all - echo "rabbit:stop()." | $(ERL_CALL) - -set-memory-alarm: all - echo "alarm_handler:set_alarm({{vm_memory_high_watermark, node()}, []})." | \ - $(ERL_CALL) - -clear-memory-alarm: all - echo "alarm_handler:clear_alarm({vm_memory_high_watermark, node()})." | \ - $(ERL_CALL) - -stop-node: - -$(ERL_CALL) -q - -# code coverage will be created for subdirectory "ebin" of COVER_DIR -COVER_DIR=. - -start-cover: all - echo "rabbit_misc:start_cover([\"rabbit\", \"hare\"])." | $(ERL_CALL) - echo "rabbit_misc:enable_cover([\"$(COVER_DIR)\"])." | $(ERL_CALL) - -start-secondary-cover: all - echo "rabbit_misc:start_cover([\"hare\"])." | $(ERL_CALL) - -stop-cover: all - echo "rabbit_misc:report_cover(), cover:stop()." | $(ERL_CALL) - cat cover/summary.txt - -######################################################################## - -srcdist: distclean - mkdir -p $(TARGET_SRC_DIR)/codegen - cp -r ebin src include LICENSE LICENSE-MPL-RabbitMQ $(TARGET_SRC_DIR) - cp INSTALL.in $(TARGET_SRC_DIR)/INSTALL - elinks -dump -no-references -no-numbering $(WEB_URL)install.html \ - >> $(TARGET_SRC_DIR)/INSTALL - cp README.in $(TARGET_SRC_DIR)/README - elinks -dump -no-references -no-numbering $(WEB_URL)build-server.html \ - >> $(TARGET_SRC_DIR)/README - sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save - - cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ - cp codegen.py Makefile generate_app generate_deps calculate-relative $(TARGET_SRC_DIR) - - cp -r scripts $(TARGET_SRC_DIR) - cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) - chmod 0755 $(TARGET_SRC_DIR)/scripts/* - - (cd dist; tar -zcf $(TARBALL_NAME).tar.gz $(TARBALL_NAME)) - (cd dist; zip -q -r $(TARBALL_NAME).zip $(TARBALL_NAME)) - rm -rf $(TARGET_SRC_DIR) - -distclean: clean - $(MAKE) -C $(AMQP_CODEGEN_DIR) distclean - rm -rf dist - find . -regex '.*\(~\|#\|\.swp\|\.dump\)' -exec rm {} \; - -# xmlto can not read from standard input, so we mess with a tmp file. -%.gz: %.xml $(DOCS_DIR)/examples-to-end.xsl - xmlto --version | grep -E '^xmlto version 0\.0\.([0-9]|1[1-8])$$' >/dev/null || opt='--stringparam man.indent.verbatims=0' ; \ - xsltproc --novalid $(DOCS_DIR)/examples-to-end.xsl $< > $<.tmp && \ - xmlto -o $(DOCS_DIR) $$opt man $<.tmp && \ - gzip -f $(DOCS_DIR)/`basename $< .xml` - rm -f $<.tmp - -# Use tmp files rather than a pipeline so that we get meaningful errors -# Do not fold the cp into previous line, it's there to stop the file being -# generated but empty if we fail -$(SOURCE_DIR)/%_usage.erl: - xsltproc --novalid --stringparam modulename "`basename $@ .erl`" \ - $(DOCS_DIR)/usage.xsl $< > $@.tmp - sed -e 's/"/\\"/g' -e 's/%QUOTE%/"/g' $@.tmp > $@.tmp2 - fold -s $@.tmp2 > $@.tmp3 - mv $@.tmp3 $@ - rm $@.tmp $@.tmp2 - -# We rename the file before xmlto sees it since xmlto will use the name of -# the file to make internal links. -%.man.xml: %.xml $(DOCS_DIR)/html-to-website-xml.xsl - cp $< `basename $< .xml`.xml && \ - xmlto xhtml-nochunks `basename $< .xml`.xml ; rm `basename $< .xml`.xml - cat `basename $< .xml`.html | \ - xsltproc --novalid $(DOCS_DIR)/remove-namespaces.xsl - | \ - xsltproc --novalid --stringparam original `basename $<` $(DOCS_DIR)/html-to-website-xml.xsl - | \ - xmllint --format - > $@ - rm `basename $< .xml`.html - -docs_all: $(MANPAGES) $(WEB_MANPAGES) - -install: install_bin install_docs - -install_bin: all install_dirs - cp -r ebin include LICENSE LICENSE-MPL-RabbitMQ INSTALL $(TARGET_DIR) - - chmod 0755 scripts/* - for script in rabbitmq-env rabbitmq-server rabbitmqctl; do \ - cp scripts/$$script $(TARGET_DIR)/sbin; \ - [ -e $(SBIN_DIR)/$$script ] || ln -s $(SCRIPTS_REL_PATH)/$$script $(SBIN_DIR)/$$script; \ - done - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory. > $(TARGET_DIR)/plugins/README - -install_docs: docs_all install_dirs - for section in 1 5; do \ - mkdir -p $(MAN_DIR)/man$$section; \ - for manpage in $(DOCS_DIR)/*.$$section.gz; do \ - cp $$manpage $(MAN_DIR)/man$$section; \ - done; \ - done - -install_dirs: - @ OK=true && \ - { [ -n "$(TARGET_DIR)" ] || { echo "Please set TARGET_DIR."; OK=false; }; } && \ - { [ -n "$(SBIN_DIR)" ] || { echo "Please set SBIN_DIR."; OK=false; }; } && \ - { [ -n "$(MAN_DIR)" ] || { echo "Please set MAN_DIR."; OK=false; }; } && $$OK - - mkdir -p $(TARGET_DIR)/sbin - mkdir -p $(SBIN_DIR) - mkdir -p $(MAN_DIR) - -$(foreach XML,$(USAGES_XML),$(eval $(call usage_dep, $(XML)))) - -# Note that all targets which depend on clean must have clean in their -# name. Also any target that doesn't depend on clean should not have -# clean in its name, unless you know that you don't need any of the -# automatic dependency generation for that target (eg cleandb). - -# We want to load the dep file if *any* target *doesn't* contain -# "clean" - i.e. if removing all clean-like targets leaves something - -ifeq "$(MAKECMDGOALS)" "" -TESTABLEGOALS:=$(.DEFAULT_GOAL) -else -TESTABLEGOALS:=$(MAKECMDGOALS) -endif - -ifneq "$(strip $(patsubst clean%,,$(patsubst %clean,,$(TESTABLEGOALS))))" "" --include $(DEPS_FILE) -endif - -.PHONY: run-qc diff --git a/README.in b/README.in deleted file mode 100644 index 0e70d0e7..00000000 --- a/README.in +++ /dev/null @@ -1,10 +0,0 @@ -Please see http://www.rabbitmq.com/build-server.html for build -instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/calculate-relative b/calculate-relative deleted file mode 100755 index 3af18e8f..00000000 --- a/calculate-relative +++ /dev/null @@ -1,45 +0,0 @@ -#!/usr/bin/env python -# -# relpath.py -# R.Barran 30/08/2004 -# Retrieved from http://code.activestate.com/recipes/302594/ - -import os -import sys - -def relpath(target, base=os.curdir): - """ - Return a relative path to the target from either the current dir or an optional base dir. - Base can be a directory specified either as absolute or relative to current dir. - """ - - if not os.path.exists(target): - raise OSError, 'Target does not exist: '+target - - if not os.path.isdir(base): - raise OSError, 'Base is not a directory or does not exist: '+base - - base_list = (os.path.abspath(base)).split(os.sep) - target_list = (os.path.abspath(target)).split(os.sep) - - # On the windows platform the target may be on a completely different drive from the base. - if os.name in ['nt','dos','os2'] and base_list[0] <> target_list[0]: - raise OSError, 'Target is on a different drive to base. Target: '+target_list[0].upper()+', base: '+base_list[0].upper() - - # Starting from the filepath root, work out how much of the filepath is - # shared by base and target. - for i in range(min(len(base_list), len(target_list))): - if base_list[i] <> target_list[i]: break - else: - # If we broke out of the loop, i is pointing to the first differing path elements. - # If we didn't break out of the loop, i is pointing to identical path elements. - # Increment i so that in all cases it points to the first differing path elements. - i+=1 - - rel_list = [os.pardir] * (len(base_list)-i) + target_list[i:] - if (len(rel_list) == 0): - return "." - return os.path.join(*rel_list) - -if __name__ == "__main__": - print(relpath(sys.argv[1], sys.argv[2])) diff --git a/codegen.py b/codegen.py deleted file mode 100644 index 8cd9dab8..00000000 --- a/codegen.py +++ /dev/null @@ -1,493 +0,0 @@ -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -from __future__ import nested_scopes - -import sys -sys.path.append("../rabbitmq-codegen") # in case we're next to an experimental revision -sys.path.append("codegen") # in case we're building from a distribution package - -from amqp_codegen import * -import string -import re - -erlangTypeMap = { - 'octet': 'octet', - 'shortstr': 'shortstr', - 'longstr': 'longstr', - 'short': 'shortint', - 'long': 'longint', - 'longlong': 'longlongint', - 'bit': 'bit', - 'table': 'table', - 'timestamp': 'timestamp', -} - -# Coming up with a proper encoding of AMQP tables in JSON is too much -# hassle at this stage. Given that the only default value we are -# interested in is for the empty table, we only support that. -def convertTable(d): - if len(d) == 0: - return "[]" - else: raise 'Non-empty table defaults not supported', d - -erlangDefaultValueTypeConvMap = { - bool : lambda x: str(x).lower(), - str : lambda x: "<<\"" + x + "\">>", - int : lambda x: str(x), - float : lambda x: str(x), - dict: convertTable, - unicode: lambda x: "<<\"" + x.encode("utf-8") + "\">>" -} - -def erlangize(s): - s = s.replace('-', '_') - s = s.replace(' ', '_') - return s - -AmqpMethod.erlangName = lambda m: "'" + erlangize(m.klass.name) + '.' + erlangize(m.name) + "'" - -AmqpClass.erlangName = lambda c: "'" + erlangize(c.name) + "'" - -def erlangConstantName(s): - return '_'.join(re.split('[- ]', s.upper())) - -class PackedMethodBitField: - def __init__(self, index): - self.index = index - self.domain = 'bit' - self.contents = [] - - def extend(self, f): - self.contents.append(f) - - def count(self): - return len(self.contents) - - def full(self): - return self.count() == 8 - -def multiLineFormat(things, prologue, separator, lineSeparator, epilogue, thingsPerLine = 4): - r = [prologue] - i = 0 - for t in things: - if i != 0: - if i % thingsPerLine == 0: - r += [lineSeparator] - else: - r += [separator] - r += [t] - i += 1 - r += [epilogue] - return "".join(r) - -def prettyType(typeName, subTypes, typesPerLine = 4): - """Pretty print a type signature made up of many alternative subtypes""" - sTs = multiLineFormat(subTypes, - "( ", " | ", "\n | ", " )", - thingsPerLine = typesPerLine) - return "-type(%s ::\n %s)." % (typeName, sTs) - -def printFileHeader(): - print """%% Autogenerated code. Do not edit. -%% -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%%""" - -def genErl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldTypeList(fields): - return '[' + ', '.join([erlType(f.domain) for f in fields]) + ']' - - def fieldNameList(fields): - return '[' + ', '.join([erlangize(f.name) for f in fields]) + ']' - - def fieldTempList(fields): - return '[' + ', '.join(['F' + str(f.index) for f in fields]) + ']' - - def fieldMapList(fields): - return ', '.join([erlangize(f.name) + " = F" + str(f.index) for f in fields]) - - def genLookupMethodName(m): - print "lookup_method_name({%d, %d}) -> %s;" % (m.klass.index, m.index, m.erlangName()) - - def genLookupClassName(c): - print "lookup_class_name(%d) -> %s;" % (c.index, c.erlangName()) - - def genMethodId(m): - print "method_id(%s) -> {%d, %d};" % (m.erlangName(), m.klass.index, m.index) - - def genMethodHasContent(m): - print "method_has_content(%s) -> %s;" % (m.erlangName(), str(m.hasContent).lower()) - - def genMethodIsSynchronous(m): - hasNoWait = "nowait" in fieldNameList(m.arguments) - if m.isSynchronous and hasNoWait: - print "is_method_synchronous(#%s{nowait = NoWait}) -> not(NoWait);" % (m.erlangName()) - else: - print "is_method_synchronous(#%s{}) -> %s;" % (m.erlangName(), str(m.isSynchronous).lower()) - - def genMethodFieldTypes(m): - """Not currently used - may be useful in future?""" - print "method_fieldtypes(%s) -> %s;" % (m.erlangName(), fieldTypeList(m.arguments)) - - def genMethodFieldNames(m): - print "method_fieldnames(%s) -> %s;" % (m.erlangName(), fieldNameList(m.arguments)) - - def packMethodFields(fields): - packed = [] - bitfield = None - for f in fields: - if erlType(f.domain) == 'bit': - if not(bitfield) or bitfield.full(): - bitfield = PackedMethodBitField(f.index) - packed.append(bitfield) - bitfield.extend(f) - else: - bitfield = None - packed.append(f) - return packed - - def methodFieldFragment(f): - type = erlType(f.domain) - p = 'F' + str(f.index) - if type == 'shortstr': - return p+'Len:8/unsigned, '+p+':'+p+'Len/binary' - elif type == 'longstr': - return p+'Len:32/unsigned, '+p+':'+p+'Len/binary' - elif type == 'octet': - return p+':8/unsigned' - elif type == 'shortint': - return p+':16/unsigned' - elif type == 'longint': - return p+':32/unsigned' - elif type == 'longlongint': - return p+':64/unsigned' - elif type == 'timestamp': - return p+':64/unsigned' - elif type == 'bit': - return p+'Bits:8' - elif type == 'table': - return p+'Len:32/unsigned, '+p+'Tab:'+p+'Len/binary' - - def genFieldPostprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - for index in range(f.count()): - print " F%d = ((F%dBits band %d) /= 0)," % \ - (f.index + index, - f.index, - 1 << index) - elif type == 'table': - print " F%d = rabbit_binary_parser:parse_table(F%dTab)," % \ - (f.index, f.index) - else: - pass - - def genMethodRecord(m): - print "method_record(%s) -> #%s{};" % (m.erlangName(), m.erlangName()) - - def genDecodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - binaryPattern = ', '.join([methodFieldFragment(f) for f in packedFields]) - if binaryPattern: - restSeparator = ', ' - else: - restSeparator = '' - recordConstructorExpr = '#%s{%s}' % (m.erlangName(), fieldMapList(m.arguments)) - print "decode_method_fields(%s, <<%s>>) ->" % (m.erlangName(), binaryPattern) - genFieldPostprocessing(packedFields) - print " %s;" % (recordConstructorExpr,) - - def genDecodeProperties(c): - print "decode_properties(%d, PropBin) ->" % (c.index) - print " %s = rabbit_binary_parser:parse_properties(%s, PropBin)," % \ - (fieldTempList(c.fields), fieldTypeList(c.fields)) - print " #'P_%s'{%s};" % (erlangize(c.name), fieldMapList(c.fields)) - - def genFieldPreprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - print " F%dBits = (%s)," % \ - (f.index, - ' bor '.join(['(bitvalue(F%d) bsl %d)' % (x.index, x.index - f.index) - for x in f.contents])) - elif type == 'table': - print " F%dTab = rabbit_binary_generator:generate_table(F%d)," % (f.index, f.index) - print " F%dLen = size(F%dTab)," % (f.index, f.index) - elif type == 'shortstr': - print " F%dLen = shortstr_size(F%d)," % (f.index, f.index) - elif type == 'longstr': - print " F%dLen = size(F%d)," % (f.index, f.index) - else: - pass - - def genEncodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - print "encode_method_fields(#%s{%s}) ->" % (m.erlangName(), fieldMapList(m.arguments)) - genFieldPreprocessing(packedFields) - print " <<%s>>;" % (', '.join([methodFieldFragment(f) for f in packedFields])) - - def genEncodeProperties(c): - print "encode_properties(#'P_%s'{%s}) ->" % (erlangize(c.name), fieldMapList(c.fields)) - print " rabbit_binary_generator:encode_properties(%s, %s);" % \ - (fieldTypeList(c.fields), fieldTempList(c.fields)) - - def messageConstantClass(cls): - # We do this because 0.8 uses "soft error" and 8.1 uses "soft-error". - return erlangConstantName(cls) - - def genLookupException(c,v,cls): - mCls = messageConstantClass(cls) - if mCls == 'SOFT_ERROR': genLookupException1(c,'false') - elif mCls == 'HARD_ERROR': genLookupException1(c, 'true') - elif mCls == '': pass - else: raise 'Unknown constant class', cls - - def genLookupException1(c,hardErrorBoolStr): - n = erlangConstantName(c) - print 'lookup_amqp_exception(%s) -> {%s, ?%s, <<"%s">>};' % \ - (n.lower(), hardErrorBoolStr, n, n) - - def genAmqpException(c,v,cls): - n = erlangConstantName(c) - print 'amqp_exception(?%s) -> %s;' % \ - (n, n.lower()) - - methods = spec.allMethods() - - printFileHeader() - module = "rabbit_framing_amqp_%d_%d" % (spec.major, spec.minor) - if spec.revision != 0: - module = "%s_%d" % (module, spec.revision) - if module == "rabbit_framing_amqp_8_0": - module = "rabbit_framing_amqp_0_8" - print "-module(%s)." % module - print """-include("rabbit_framing.hrl"). - --export([version/0]). --export([lookup_method_name/1]). --export([lookup_class_name/1]). - --export([method_id/1]). --export([method_has_content/1]). --export([is_method_synchronous/1]). --export([method_record/1]). --export([method_fieldnames/1]). --export([decode_method_fields/2]). --export([decode_properties/2]). --export([encode_method_fields/1]). --export([encode_properties/1]). --export([lookup_amqp_exception/1]). --export([amqp_exception/1]). - -""" - print "%% Various types" - print "-ifdef(use_specs)." - - print """-export_type([amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(amqp_field_type() :: - 'longstr' | 'signedint' | 'decimal' | 'timestamp' | - 'table' | 'byte' | 'double' | 'float' | 'long' | - 'short' | 'bool' | 'binary' | 'void' | 'array'). --type(amqp_property_type() :: - 'shortstr' | 'longstr' | 'octet' | 'shortint' | 'longint' | - 'longlongint' | 'timestamp' | 'bit' | 'table'). - --type(amqp_table() :: [{binary(), amqp_field_type(), amqp_value()}]). --type(amqp_array() :: [{amqp_field_type(), amqp_value()}]). --type(amqp_value() :: binary() | % longstr - integer() | % signedint - {non_neg_integer(), non_neg_integer()} | % decimal - amqp_table() | - amqp_array() | - byte() | % byte - float() | % double - integer() | % long - integer() | % short - boolean() | % bool - binary() | % binary - 'undefined' | % void - non_neg_integer() % timestamp - ). -""" - - print prettyType("amqp_method_name()", - [m.erlangName() for m in methods]) - print prettyType("amqp_method()", - ["{%s, %s}" % (m.klass.index, m.index) for m in methods], - 6) - print prettyType("amqp_method_record()", - ["#%s{}" % (m.erlangName()) for m in methods]) - fieldNames = set() - for m in methods: - fieldNames.update(m.arguments) - fieldNames = [erlangize(f.name) for f in fieldNames] - print prettyType("amqp_method_field_name()", - fieldNames) - print prettyType("amqp_property_record()", - ["#'P_%s'{}" % erlangize(c.name) for c in spec.allClasses()]) - print prettyType("amqp_exception()", - ["'%s'" % erlangConstantName(c).lower() for (c, v, cls) in spec.constants]) - print prettyType("amqp_exception_code()", - ["%i" % v for (c, v, cls) in spec.constants]) - classIds = set() - for m in spec.allMethods(): - classIds.add(m.klass.index) - print prettyType("amqp_class_id()", - ["%i" % ci for ci in classIds]) - print "-endif. % use_specs" - - print """ -%% Method signatures --ifdef(use_specs). --spec(version/0 :: () -> {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --spec(lookup_method_name/1 :: (amqp_method()) -> amqp_method_name()). --spec(method_id/1 :: (amqp_method_name()) -> amqp_method()). --spec(method_has_content/1 :: (amqp_method_name()) -> boolean()). --spec(is_method_synchronous/1 :: (amqp_method_record()) -> boolean()). --spec(method_record/1 :: (amqp_method_name()) -> amqp_method_record()). --spec(method_fieldnames/1 :: (amqp_method_name()) -> [amqp_method_field_name()]). --spec(decode_method_fields/2 :: - (amqp_method_name(), binary()) -> amqp_method_record() | rabbit_types:connection_exit()). --spec(decode_properties/2 :: (non_neg_integer(), binary()) -> amqp_property_record()). --spec(encode_method_fields/1 :: (amqp_method_record()) -> binary()). --spec(encode_properties/1 :: (amqp_property_record()) -> binary()). --spec(lookup_amqp_exception/1 :: (amqp_exception()) -> {boolean(), amqp_exception_code(), binary()}). --spec(amqp_exception/1 :: (amqp_exception_code()) -> amqp_exception()). --endif. % use_specs - -bitvalue(true) -> 1; -bitvalue(false) -> 0; -bitvalue(undefined) -> 0. - -shortstr_size(S) -> - case size(S) of - Len when Len =< 255 -> Len; - _ -> exit(method_field_shortstr_overflow) - end. -""" - version = "{%d, %d, %d}" % (spec.major, spec.minor, spec.revision) - if version == '{8, 0, 0}': version = '{0, 8, 0}' - print "version() -> %s." % (version) - - for m in methods: genLookupMethodName(m) - print "lookup_method_name({_ClassId, _MethodId} = Id) -> exit({unknown_method_id, Id})." - - for c in spec.allClasses(): genLookupClassName(c) - print "lookup_class_name(ClassId) -> exit({unknown_class_id, ClassId})." - - for m in methods: genMethodId(m) - print "method_id(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodHasContent(m) - print "method_has_content(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodIsSynchronous(m) - print "is_method_synchronous(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodRecord(m) - print "method_record(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodFieldNames(m) - print "method_fieldnames(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genDecodeMethodFields(m) - print "decode_method_fields(Name, BinaryFields) ->" - print " rabbit_misc:frame_error(Name, BinaryFields)." - - for c in spec.allClasses(): genDecodeProperties(c) - print "decode_properties(ClassId, _BinaryFields) -> exit({unknown_class_id, ClassId})." - - for m in methods: genEncodeMethodFields(m) - print "encode_method_fields(Record) -> exit({unknown_method_name, element(1, Record)})." - - for c in spec.allClasses(): genEncodeProperties(c) - print "encode_properties(Record) -> exit({unknown_properties_record, Record})." - - for (c,v,cls) in spec.constants: genLookupException(c,v,cls) - print "lookup_amqp_exception(Code) ->" - print " rabbit_log:warning(\"Unknown AMQP error code '~p'~n\", [Code])," - print " {true, ?INTERNAL_ERROR, <<\"INTERNAL_ERROR\">>}." - - for(c,v,cls) in spec.constants: genAmqpException(c,v,cls) - print "amqp_exception(_Code) -> undefined." - -def genHrl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldNameList(fields): - return ', '.join([erlangize(f.name) for f in fields]) - - def fieldNameListDefaults(fields): - def fillField(field): - result = erlangize(f.name) - if field.defaultvalue != None: - conv_fn = erlangDefaultValueTypeConvMap[type(field.defaultvalue)] - result += ' = ' + conv_fn(field.defaultvalue) - return result - return ', '.join([fillField(f) for f in fields]) - - methods = spec.allMethods() - - printFileHeader() - print "-define(PROTOCOL_PORT, %d)." % (spec.port) - - for (c,v,cls) in spec.constants: - print "-define(%s, %s)." % (erlangConstantName(c), v) - - print "%% Method field records." - for m in methods: - print "-record(%s, {%s})." % (m.erlangName(), fieldNameListDefaults(m.arguments)) - - print "%% Class property records." - for c in spec.allClasses(): - print "-record('P_%s', {%s})." % (erlangize(c.name), fieldNameList(c.fields)) - - -def generateErl(specPath): - genErl(AmqpSpec(specPath)) - -def generateHrl(specPath): - genHrl(AmqpSpec(specPath)) - -if __name__ == "__main__": - do_main_dict({"header": generateHrl, - "body": generateErl}) - diff --git a/docs/examples-to-end.xsl b/docs/examples-to-end.xsl deleted file mode 100644 index a0a74178..00000000 --- a/docs/examples-to-end.xsl +++ /dev/null @@ -1,90 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - Examples - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [] - - - - {} - - - - - - - - diff --git a/docs/html-to-website-xml.xsl b/docs/html-to-website-xml.xsl deleted file mode 100644 index 4bfcf6ca..00000000 --- a/docs/html-to-website-xml.xsl +++ /dev/null @@ -1,98 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - -type="text/xml" href="page.xsl" - - - <xsl:value-of select="document($original)/refentry/refnamediv/refname"/><xsl:if test="document($original)/refentry/refmeta/manvolnum">(<xsl:value-of select="document($original)/refentry/refmeta/manvolnum"/>)</xsl:if> manual page - 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- For more general documentation, please see the - administrator's guide. -

- - - Table of Contents - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
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- - - - diff --git a/docs/rabbitmq-env.conf.5.xml b/docs/rabbitmq-env.conf.5.xml deleted file mode 100644 index c887596c..00000000 --- a/docs/rabbitmq-env.conf.5.xml +++ /dev/null @@ -1,83 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-env.conf - 5 - RabbitMQ Server - - - - rabbitmq-env.conf - default settings for RabbitMQ AMQP server - - - - Description - -/etc/rabbitmq/rabbitmq-env.conf contains variable settings that override the -defaults built in to the RabbitMQ startup scripts. - - -The file is interpreted by the system shell, and so should consist of -a sequence of shell environment variable definitions. Normal shell -syntax is permitted (since the file is sourced using the shell "." -operator), including line comments starting with "#". - - -In order of preference, the startup scripts get their values from the -environment, from /etc/rabbitmq/rabbitmq-env.conf and finally from the -built-in default values. For example, for the RABBITMQ_NODENAME -setting, - - - RABBITMQ_NODENAME - - -from the environment is checked first. If it is absent or equal to the -empty string, then - - - NODENAME - - -from /etc/rabbitmq/rabbitmq-env.conf is checked. If it is also absent -or set equal to the empty string then the default value from the -startup script is used. - - -The variable names in /etc/rabbitmq/rabbitmq-env.conf are always equal to the -environment variable names, with the RABBITMQ_ prefix removed: -RABBITMQ_NODE_PORT from the environment becomes NODE_PORT in the -/etc/rabbitmq/rabbitmq-env.conf file, etc. - - For example: - -# I am a complete /etc/rabbitmq/rabbitmq-env.conf file. -# Comment lines start with a hash character. -# This is a /bin/sh script file - use ordinary envt var syntax -NODENAME=hare - - - This is an example of a complete - /etc/rabbitmq/rabbitmq-env.conf file that overrides the default Erlang - node name from "rabbit" to "hare". - - - - - - See also - - rabbitmq-server1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-server.1.xml b/docs/rabbitmq-server.1.xml deleted file mode 100644 index ca63927c..00000000 --- a/docs/rabbitmq-server.1.xml +++ /dev/null @@ -1,131 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-server - 1 - RabbitMQ Server - - - - rabbitmq-server - start RabbitMQ AMQP server - - - - - rabbitmq-server - -detached - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-server in the foreground displays a banner message, -and reports on progress in the startup sequence, concluding with the -message "broker running", indicating that the RabbitMQ broker has been -started successfully. To shut down the server, just terminate the -process or use rabbitmqctl(1). - - - - - Environment - - - - RABBITMQ_MNESIA_BASE - - -Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory where -Mnesia database files should be placed. - - - - - - RABBITMQ_LOG_BASE - - -Defaults to /var/log/rabbitmq. Log files generated by the server will -be placed in this directory. - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - - - - Options - - - -detached - - - start the server process in the background - - For example: - rabbitmq-server -detached - - Runs RabbitMQ AMQP server in the background. - - - - - - - - See also - - rabbitmq-env.conf5 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-service.xml b/docs/rabbitmq-service.xml deleted file mode 100644 index 3368960b..00000000 --- a/docs/rabbitmq-service.xml +++ /dev/null @@ -1,217 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-service.bat - RabbitMQ Server - - - - rabbitmq-service.bat - manage RabbitMQ AMQP service - - - - - rabbitmq-service.bat - command - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-service allows the RabbitMQ broker to be run as a -service on NT/2000/2003/XP/Vista® environments. The RabbitMQ broker -service can be started and stopped using the Windows® services -applet. - - -By default the service will run in the authentication context of the -local system account. It is therefore necessary to synchronise Erlang -cookies between the local system account (typically -C:\WINDOWS\.erlang.cookie and the account that will be used to -run rabbitmqctl. - - - - - Commands - - - - help - - -Display usage information. - - - - - - install - - -Install the service. The service will not be started. -Subsequent invocations will update the service parameters if -relevant environment variables were modified. - - - - - - remove - - -Remove the service. If the service is running then it will -automatically be stopped before being removed. No files will be -deleted as a consequence and rabbitmq-server will remain operable. - - - - - - start - - -Start the service. The service must have been correctly installed -beforehand. - - - - - - stop - - -Stop the service. The service must be running for this command to -have any effect. - - - - - - disable - - -Disable the service. This is the equivalent of setting the startup -type to Disabled using the service control panel. - - - - - - enable - - -Enable the service. This is the equivalent of setting the startup -type to Automatic using the service control panel. - - - - - - - - Environment - - - - RABBITMQ_SERVICENAME - - -Defaults to RabbitMQ. - - - - - - RABBITMQ_BASE - - -Defaults to the application data directory of the current user. -This is the location of log and database directories. - - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - ERLANG_SERVICE_MANAGER_PATH - - -Defaults to C:\Program Files\erl5.5.5\erts-5.5.5\bin -(or C:\Program Files (x86)\erl5.5.5\erts-5.5.5\bin for 64-bit -environments). This is the installation location of the Erlang service -manager. - - - - - - RABBITMQ_CONSOLE_LOG - - -Set this varable to new or reuse to have the console -output from the server redirected to a file named SERVICENAME.debug -in the application data directory of the user that installed the service. -Under Vista this will be C:\Users\AppData\username\SERVICENAME. -Under previous versions of Windows this will be -C:\Documents and Settings\username\Application Data\SERVICENAME. -If RABBITMQ_CONSOLE_LOG is set to new then a new file will be -created each time the service starts. If RABBITMQ_CONSOLE_LOG is -set to reuse then the file will be overwritten each time the -service starts. The default behaviour when RABBITMQ_CONSOLE_LOG is -not set or set to a value other than new or reuse is to discard -the server output. - - - - - - diff --git a/docs/rabbitmqctl.1.xml b/docs/rabbitmqctl.1.xml deleted file mode 100644 index ee000215..00000000 --- a/docs/rabbitmqctl.1.xml +++ /dev/null @@ -1,1370 +0,0 @@ - - - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmqctl - 1 - RabbitMQ Service - - - - rabbitmqctl - command line tool for managing a RabbitMQ broker - - - - - rabbitmqctl - -n node - -q - command - command options - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. - - - rabbitmqctl is a command line tool for managing a - RabbitMQ broker. It performs all actions by connecting to one of the - broker's nodes. - - - Diagnostic information is displayed if the broker was not - running, could not be reached, or rejected the connection due to - mismatching Erlang cookies. - - - - - Options - - - -n node - - - Default node is "rabbit@server", where server is the local host. On - a host named "server.example.com", the node name of the RabbitMQ - Erlang node will usually be rabbit@server (unless RABBITMQ_NODENAME - has been set to some non-default value at broker startup time). The - output of hostname -s is usually the correct suffix to use after the - "@" sign. See rabbitmq-server(1) for details of configuring the - RabbitMQ broker. - - - - - -q - - - Quiet output mode is selected with the "-q" flag. Informational - messages are suppressed when quiet mode is in effect. - - - - - - - - Commands - - - Application and Cluster Management - - - - stop - - - Stops the Erlang node on which RabbitMQ is running. To - restart the node follow the instructions for Running - the Server in the installation - guide. - - For example: - rabbitmqctl stop - - This command instructs the RabbitMQ node to terminate. - - - - - - stop_app - - - Stops the RabbitMQ application, leaving the Erlang node - running. - - - This command is typically run prior to performing other - management actions that require the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl stop_app - - This command instructs the RabbitMQ node to stop the - RabbitMQ application. - - - - - - start_app - - - Starts the RabbitMQ application. - - - This command is typically run after performing other - management actions that required the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl start_app - - This command instructs the RabbitMQ node to start the - RabbitMQ application. - - - - - - wait - - - Wait for the RabbitMQ application to start. - - - This command will wait for the RabbitMQ application to - start at the node. As long as the Erlang node is up but - the RabbitMQ application is down it will wait - indefinitely. If the node itself goes down, or takes - more than five seconds to come up, it will fail. - - For example: - rabbitmqctl wait - - This command will return when the RabbitMQ node has - started up. - - - - - - reset - - - Return a RabbitMQ node to its virgin state. - - - Removes the node from any cluster it belongs to, removes - all data from the management database, such as configured - users and vhosts, and deletes all persistent - messages. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl reset - - This command resets the RabbitMQ node. - - - - - - force_reset - - - Forcefully return a RabbitMQ node to its virgin state. - - - The force_reset command differs from - reset in that it resets the node - unconditionally, regardless of the current management - database state and cluster configuration. It should only - be used as a last resort if the database or cluster - configuration has been corrupted. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl force_reset - - This command resets the RabbitMQ node. - - - - - - rotate_logs suffix - - - Instruct the RabbitMQ node to rotate the log files. - - - The RabbitMQ broker will attempt to append the current contents - of the log file to the file with name composed of the original - name and the suffix. - It will create a new file if such a file does not already exist. - When no is specified, the empty log file is - simply created at the original location; no rotation takes place. - - - When an error occurs while appending the contents of the old log - file, the operation behaves in the same way as if no was - specified. - - - This command might be helpful when you are e.g. writing your - own logrotate script and you do not want to restart the RabbitMQ - node. - - For example: - rabbitmqctl rotate_logs .1 - - This command instructs the RabbitMQ node to append the current content - of the log files to the files with names consisting of the original logs' - names and ".1" suffix, e.g. rabbit.log.1. Finally, the old log files are reopened. - - - - - - - - Cluster management - - - - cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. To cluster with currently offline nodes, - use force_cluster. - - - Cluster nodes can be of two types: disk or ram. Disk nodes - replicate data in ram and on disk, thus providing - redundancy in the event of node failure and recovery from - global events such as power failure across all nodes. Ram - nodes replicate data in ram only and are mainly used for - scalability. A cluster must always have at least one disk node. - - - If the current node is to become a disk node it needs to - appear in the cluster node list. Otherwise it becomes a - ram node. If the node list is empty or only contains the - current node then the node becomes a standalone, - i.e. non-clustered, (disk) node. - - - After executing the cluster command, whenever - the RabbitMQ application is started on the current node it - will attempt to connect to the specified nodes, thus - becoming an active node in the cluster comprising those - nodes (and possibly others). - - - The list of nodes does not have to contain all the - cluster's nodes; a subset is sufficient. Also, clustering - generally succeeds as long as at least one of the - specified nodes is active. Hence adjustments to the list - are only necessary if the cluster configuration is to be - altered radically. - - - For this command to succeed the RabbitMQ application must - have been stopped, e.g. with stop_app. Furthermore, - turning a standalone node into a clustered node requires - the node be reset first, - in order to avoid accidental destruction of data with the - cluster command. - - - For more details see the clustering guide. - - For example: - rabbitmqctl cluster rabbit@tanto hare@elena - - This command instructs the RabbitMQ node to join the - cluster with nodes rabbit@tanto and - hare@elena. If the node is one of these then - it becomes a disk node, otherwise a ram node. - - - - - force_cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. This will succeed even if the specified nodes - are offline. For a more detailed description, see - cluster. - - - Note that this variant of the cluster command just - ignores the current status of the specified nodes. - Clustering may still fail for a variety of other - reasons. - - - - - cluster_status - - - Displays all the nodes in the cluster grouped by node type, - together with the currently running nodes. - - For example: - rabbitmqctl cluster_status - - This command displays the nodes in the cluster. - - - - - - - - Closing individual connections - - - - close_connection connectionpid explanation - - - - connectionpid - Id of the Erlang process associated with the connection to close. - - - explanation - Explanation string. - - - - Instruct the broker to close the connection associated - with the Erlang process id (see also the - list_connections - command), passing the string to the - connected client as part of the AMQP connection shutdown - protocol. - - For example: - rabbitmqctl close_connection "<rabbit@tanto.4262.0>" "go away" - - This command instructs the RabbitMQ broker to close the - connection associated with the Erlang process - id <rabbit@tanto.4262.0>, passing the - explanation go away to the connected client. - - - - - - - - User management - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Users from any alternative - authentication backend will not be visible - to rabbitmqctl. - - - - add_user username password - - - - username - The name of the user to create. - - - password - The password the created user will use to log in to the broker. - - - For example: - rabbitmqctl add_user tonyg changeit - - This command instructs the RabbitMQ broker to create a - (non-administrative) user named tonyg with - (initial) password - changeit. - - - - - - delete_user username - - - - username - The name of the user to delete. - - - For example: - rabbitmqctl delete_user tonyg - - This command instructs the RabbitMQ broker to delete the - user named tonyg. - - - - - - change_password username newpassword - - - - username - The name of the user whose password is to be changed. - - - newpassword - The new password for the user. - - - For example: - rabbitmqctl change_password tonyg newpass - - This command instructs the RabbitMQ broker to change the - password for the user named tonyg to - newpass. - - - - - - clear_password username - - - - username - The name of the user whose password is to be cleared. - - - For example: - rabbitmqctl clear_password tonyg - - This command instructs the RabbitMQ broker to clear the - password for the user named - tonyg. This user now cannot log in with a password (but may be able to through e.g. SASL EXTERNAL if configured). - - - - - - set_user_tags username tag ... - - - - username - The name of the user whose tags are to - be set. - - - tag - Zero, one or more tags to set. Any - existing tags will be removed. - - - For example: - rabbitmqctl set_user_tags tonyg administrator - - This command instructs the RabbitMQ broker to ensure the user - named tonyg is an administrator. This has no - effect when the user logs in via AMQP, but can be used to permit - the user to manage users, virtual hosts and permissions when the - user logs in via some other means (for example with the - management plugin). - - rabbitmqctl set_user_tags tonyg - - This command instructs the RabbitMQ broker to remove any - tags from the user named tonyg. - - - - - - list_users - - Lists users - For example: - rabbitmqctl list_users - - This command instructs the RabbitMQ broker to list all - users. Each result row will contain the user name and - the administrator status of the user, in that order. - - - - - - - - Access control - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Permissions for users from any - alternative authorisation backend will not be visible - to rabbitmqctl. - - - - add_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to create. - - - - Creates a virtual host. - - For example: - rabbitmqctl add_vhost test - - This command instructs the RabbitMQ broker to create a new - virtual host called test. - - - - - - delete_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to delete. - - - - Deletes a virtual host. - - - Deleting a virtual host deletes all its exchanges, - queues, user mappings and associated permissions. - - For example: - rabbitmqctl delete_vhost test - - This command instructs the RabbitMQ broker to delete the - virtual host called test. - - - - - - list_vhosts vhostinfoitem ... - - - Lists virtual hosts. - - - The vhostinfoitem parameter is used to indicate which - virtual host information items to include in the results. The column order in the - results will match the order of the parameters. - vhostinfoitem can take any value from - the list that follows: - - - - name - The name of the virtual host with non-ASCII characters escaped as in C. - - - tracing - Whether tracing is enabled for this virtual host. - - - - If no vhostinfoitems are specified - then the vhost name is displayed. - - For example: - rabbitmqctl list_vhosts name tracing - - This command instructs the RabbitMQ broker to list all - virtual hosts. - - - - - - set_permissions -p vhostpath user conf write read - - - - vhostpath - The name of the virtual host to which to grant the user access, defaulting to /. - - - user - The name of the user to grant access to the specified virtual host. - - - conf - A regular expression matching resource names for which the user is granted configure permissions. - - - write - A regular expression matching resource names for which the user is granted write permissions. - - - read - A regular expression matching resource names for which the user is granted read permissions. - - - - Sets user permissions. - - For example: - rabbitmqctl set_permissions -p /myvhost tonyg "^tonyg-.*" ".*" ".*" - - This command instructs the RabbitMQ broker to grant the - user named tonyg access to the virtual host - called /myvhost, with configure permissions - on all resources whose names starts with "tonyg-", and - write and read permissions on all resources. - - - - - - clear_permissions -p vhostpath username - - - - vhostpath - The name of the virtual host to which to deny the user access, defaulting to /. - - - username - The name of the user to deny access to the specified virtual host. - - - - Sets user permissions. - - For example: - rabbitmqctl clear_permissions -p /myvhost tonyg - - This command instructs the RabbitMQ broker to deny the - user named tonyg access to the virtual host - called /myvhost. - - - - - - list_permissions -p vhostpath - - - - vhostpath - The name of the virtual host for which to list the users that have been granted access to it, and their permissions. Defaults to /. - - - - Lists permissions in a virtual host. - - For example: - rabbitmqctl list_permissions -p /myvhost - - This command instructs the RabbitMQ broker to list all - the users which have been granted access to the virtual - host called /myvhost, and the - permissions they have for operations on resources in - that virtual host. Note that an empty string means no - permissions granted. - - - - - - list_user_permissions -p vhostpath username - - - - username - The name of the user for which to list the permissions. - - - - Lists user permissions. - - For example: - rabbitmqctl list_user_permissions tonyg - - This command instructs the RabbitMQ broker to list all the - virtual hosts to which the user named tonyg - has been granted access, and the permissions the user has - for operations on resources in these virtual hosts. - - - - - - - - Server Status - - The server status queries interrogate the server and return a list of - results with tab-delimited columns. Some queries (list_queues, - list_exchanges, list_bindings, and - list_consumers) accept an - optional vhost parameter. This parameter, if present, must be - specified immediately after the query. - - - The list_queues, list_exchanges and list_bindings commands accept an - optional virtual host parameter for which to display results. The - default value is "/". - - - - - list_queues -p vhostpath queueinfoitem ... - - - Returns queue details. Queue details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The queueinfoitem parameter is used to indicate which queue - information items to include in the results. The column order in the - results will match the order of the parameters. - queueinfoitem can take any value from the list - that follows: - - - - name - The name of the queue with non-ASCII characters escaped as in C. - - - durable - Whether or not the queue survives server restarts. - - - auto_delete - Whether the queue will be deleted automatically when no longer used. - - - arguments - Queue arguments. - - - pid - Id of the Erlang process associated with the queue. - - - owner_pid - Id of the Erlang process representing the connection - which is the exclusive owner of the queue. Empty if the - queue is non-exclusive. - - - exclusive_consumer_pid - Id of the Erlang process representing the channel of the - exclusive consumer subscribed to this queue. Empty if - there is no exclusive consumer. - - - exclusive_consumer_tag - Consumer tag of the exclusive consumer subscribed to - this queue. Empty if there is no exclusive consumer. - - - messages_ready - Number of messages ready to be delivered to clients. - - - messages_unacknowledged - Number of messages delivered to clients but not yet acknowledged. - - - messages - Sum of ready and unacknowledged messages - (queue depth). - - - consumers - Number of consumers. - - - memory - Bytes of memory consumed by the Erlang process associated with the - queue, including stack, heap and internal structures. - - - - If no queueinfoitems are specified then queue name and depth are - displayed. - - - For example: - - rabbitmqctl list_queues -p /myvhost messages consumers - - This command displays the depth and number of consumers for each - queue of the virtual host named /myvhost. - - - - - - list_exchanges -p vhostpath exchangeinfoitem ... - - - Returns exchange details. Exchange details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The exchangeinfoitem parameter is used to indicate which - exchange information items to include in the results. The column order in the - results will match the order of the parameters. - exchangeinfoitem can take any value from the list - that follows: - - - - name - The name of the exchange with non-ASCII characters escaped as in C. - - - type - The exchange type (one of [direct, - topic, headers, - fanout]). - - - durable - Whether or not the exchange survives server restarts. - - - auto_delete - Whether the exchange will be deleted automatically when no longer used. - - - internal - Whether the exchange is internal, i.e. cannot be directly published to by a client. - - - arguments - Exchange arguments. - - - - If no exchangeinfoitems are specified then - exchange name and type are displayed. - - - For example: - - rabbitmqctl list_exchanges -p /myvhost name type - - This command displays the name and type for each - exchange of the virtual host named /myvhost. - - - - - - list_bindings -p vhostpath bindinginfoitem ... - - - Returns binding details. By default the bindings for - the / virtual host are returned. The - "-p" flag can be used to override this default. - - - The bindinginfoitem parameter is used - to indicate which binding information items to include - in the results. The column order in the results will - match the order of the parameters. - bindinginfoitem can take any value - from the list that follows: - - - - source_name - The name of the source of messages to - which the binding is attached. With non-ASCII - characters escaped as in C. - - - source_kind - The kind of the source of messages to - which the binding is attached. Currently always - queue. With non-ASCII characters escaped as in - C. - - - destination_name - The name of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - destination_kind - The kind of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - routing_key - The binding's routing key, with - non-ASCII characters escaped as in C. - - - arguments - The binding's arguments. - - - - If no bindinginfoitems are specified then - all above items are displayed. - - - For example: - - rabbitmqctl list_bindings -p /myvhost exchange_name queue_name - - This command displays the exchange name and queue name - of the bindings in the virtual host - named /myvhost. - - - - - - list_connections connectioninfoitem ... - - - Returns TCP/IP connection statistics. - - - The connectioninfoitem parameter is used to indicate - which connection information items to include in the results. The - column order in the results will match the order of the parameters. - connectioninfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - address - Server IP address. - - - port - Server port. - - - peer_address - Peer address. - - - peer_port - Peer port. - - - ssl - Boolean indicating whether the - connection is secured with SSL. - - - ssl_protocol - SSL protocol - (e.g. tlsv1) - - - ssl_key_exchange - SSL key exchange algorithm - (e.g. rsa) - - - ssl_cipher - SSL cipher algorithm - (e.g. aes_256_cbc) - - - ssl_hash - SSL hash function - (e.g. sha) - - - peer_cert_subject - The subject of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_issuer - The issuer of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_validity - The period for which the peer's SSL - certificate is valid. - - - state - Connection state (one of [starting, tuning, - opening, running, closing, closed]). - - - channels - Number of channels using the connection. - - - protocol - Version of the AMQP protocol in use (currently one of {0,9,1} or {0,8,0}). Note that if a client requests an AMQP 0-9 connection, we treat it as AMQP 0-9-1. - - - auth_mechanism - SASL authentication mechanism used, such as PLAIN. - - - user - Username associated with the connection. - - - vhost - Virtual host name with non-ASCII characters escaped as in C. - - - timeout - Connection timeout. - - - frame_max - Maximum frame size (bytes). - - - client_properties - Informational properties transmitted by the client - during connection establishment. - - - recv_oct - Octets received. - - - recv_cnt - Packets received. - - - send_oct - Octets send. - - - send_cnt - Packets sent. - - - send_pend - Send queue size. - - - - If no connectioninfoitems are specified then user, peer - address, peer port and connection state are displayed. - - - - For example: - - rabbitmqctl list_connections send_pend port - - This command displays the send queue size and server port for each - connection. - - - - - - list_channels channelinfoitem ... - - - Returns information on all current channels, the logical - containers executing most AMQP commands. This includes - channels that are part of ordinary AMQP connections, and - channels created by various plug-ins and other extensions. - - - The channelinfoitem parameter is used to - indicate which channel information items to include in the - results. The column order in the results will match the - order of the parameters. - channelinfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - connection - Id of the Erlang process associated with the connection - to which the channel belongs. - - - number - The number of the channel, which uniquely identifies it within - a connection. - - - user - Username associated with the channel. - - - vhost - Virtual host in which the channel operates. - - - transactional - True if the channel is in transactional mode, false otherwise. - - - confirm - True if the channel is in confirm mode, false otherwise. - - - consumer_count - Number of logical AMQP consumers retrieving messages via - the channel. - - - messages_unacknowledged - Number of messages delivered via this channel but not - yet acknowledged. - - - messages_uncommitted - Number of messages received in an as yet - uncommitted transaction. - - - acks_uncommitted - Number of acknowledgements received in an as yet - uncommitted transaction. - - - messages_unconfirmed - Number of published messages not yet - confirmed. On channels not in confirm mode, this - remains 0. - - - prefetch_count - QoS prefetch count limit in force, 0 if unlimited. - - - client_flow_blocked - True if the client issued a - channel.flow{active=false} - command, blocking the server from delivering - messages to the channel's consumers. - - - - - If no channelinfoitems are specified then pid, - user, consumer_count, and messages_unacknowledged are assumed. - - - - For example: - - rabbitmqctl list_channels connection messages_unacknowledged - - This command displays the connection process and count - of unacknowledged messages for each channel. - - - - - - list_consumers -p vhostpath - - - List consumers, i.e. subscriptions to a queue's message - stream. Each line printed shows, separated by tab - characters, the name of the queue subscribed to, the id of - the channel process via which the subscription was created - and is managed, the consumer tag which uniquely identifies - the subscription within a channel, and a boolean - indicating whether acknowledgements are expected for - messages delivered to this consumer. - - - The output is a list of rows containing, in order, the queue name, - channel process id, consumer tag, and a boolean indicating whether - acknowledgements are expected from the consumer. - - - - - - status - - - Displays broker status information such as the running - applications on the current Erlang node, RabbitMQ and - Erlang versions and OS name. (See - the cluster_status command to find - out which nodes are clustered and running.) - - For example: - rabbitmqctl status - - This command displays information about the RabbitMQ - broker. - - - - - - environment - - - Display the name and value of each variable in the - application environment. - - - - - - report - - - Generate a server status report containing a - concatenation of all server status information for - support purposes. The output should be redirected to a - file when accompanying a support request. - - - For example: - - rabbitmqctl report > server_report.txt - - This command creates a server report which may be - attached to a support request email. - - - - - - - - Message Tracing - - - trace_on -p vhost - - - - vhost - The name of the virtual host for which to start tracing. - - - - Starts tracing. - - - - - - trace_off -p vhost - - - - vhost - The name of the virtual host for which to stop tracing. - - - - Stops tracing. - - - - - - - - - diff --git a/docs/remove-namespaces.xsl b/docs/remove-namespaces.xsl deleted file mode 100644 index 7f7f3c12..00000000 --- a/docs/remove-namespaces.xsl +++ /dev/null @@ -1,18 +0,0 @@ - - - - - - - - - - - - - - - diff --git a/docs/usage.xsl b/docs/usage.xsl deleted file mode 100644 index 586f8303..00000000 --- a/docs/usage.xsl +++ /dev/null @@ -1,74 +0,0 @@ - - - - - - - - - - -%% Generated, do not edit! --module(). --export([usage/0]). -usage() -> %QUOTE%Usage: - - - - - - - - - - - - Options: - - - - - , - - - - - - - - - - - - - Commands: - - - - - - - - - -%QUOTE%. - - - -<> must be a member of the list [, ]. - - - - - - - - - -[] -<> - - diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in deleted file mode 100644 index 65a3269a..00000000 --- a/ebin/rabbit_app.in +++ /dev/null @@ -1,45 +0,0 @@ -{application, rabbit, %% -*- erlang -*- - [{description, "RabbitMQ"}, - {id, "RabbitMQ"}, - {vsn, "%%VSN%%"}, - {modules, []}, - {registered, [rabbit_amqqueue_sup, - rabbit_log, - rabbit_node_monitor, - rabbit_router, - rabbit_sup, - rabbit_tcp_client_sup, - rabbit_direct_client_sup]}, - {applications, [kernel, stdlib, sasl, mnesia, os_mon]}, -%% we also depend on crypto, public_key and ssl but they shouldn't be -%% in here as we don't actually want to start it - {mod, {rabbit, []}}, - {env, [{tcp_listeners, [5672]}, - {ssl_listeners, []}, - {ssl_options, []}, - {vm_memory_high_watermark, 0.4}, - {msg_store_index_module, rabbit_msg_store_ets_index}, - {backing_queue_module, rabbit_variable_queue}, - {frame_max, 131072}, - {msg_store_file_size_limit, 16777216}, - {queue_index_max_journal_entries, 262144}, - {default_user, <<"guest">>}, - {default_pass, <<"guest">>}, - {default_user_tags, [administrator]}, - {default_vhost, <<"/">>}, - {default_permissions, [<<".*">>, <<".*">>, <<".*">>]}, - {cluster_nodes, []}, - {server_properties, []}, - {collect_statistics, none}, - {collect_statistics_interval, 5000}, - {auth_mechanisms, ['PLAIN', 'AMQPLAIN']}, - {auth_backends, [rabbit_auth_backend_internal]}, - {delegate_count, 16}, - {trace_vhosts, []}, - {tcp_listen_options, [binary, - {packet, raw}, - {reuseaddr, true}, - {backlog, 128}, - {nodelay, true}, - {exit_on_close, false}]} - ]}]}. diff --git a/generate_app b/generate_app deleted file mode 100644 index fb0eb1ea..00000000 --- a/generate_app +++ /dev/null @@ -1,16 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- - -main([InFile, OutFile | SrcDirs]) -> - Modules = [list_to_atom(filename:basename(F, ".erl")) || - SrcDir <- SrcDirs, - F <- filelib:wildcard("*.erl", SrcDir)], - {ok, [{application, Application, Properties}]} = file:consult(InFile), - NewProperties = - case proplists:get_value(modules, Properties) of - [] -> lists:keyreplace(modules, 1, Properties, {modules, Modules}); - _ -> Properties - end, - file:write_file( - OutFile, - io_lib:format("~p.~n", [{application, Application, NewProperties}])). diff --git a/generate_deps b/generate_deps deleted file mode 100644 index ddfca816..00000000 --- a/generate_deps +++ /dev/null @@ -1,57 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- --mode(compile). - -%% We expect the list of Erlang source and header files to arrive on -%% stdin, with the entries colon-separated. -main([TargetFile, EbinDir]) -> - ErlsAndHrls = [ string:strip(S,left) || - S <- string:tokens(io:get_line(""), ":\n")], - ErlFiles = [F || F <- ErlsAndHrls, lists:suffix(".erl", F)], - Modules = sets:from_list( - [list_to_atom(filename:basename(FileName, ".erl")) || - FileName <- ErlFiles]), - HrlFiles = [F || F <- ErlsAndHrls, lists:suffix(".hrl", F)], - IncludeDirs = lists:usort([filename:dirname(Path) || Path <- HrlFiles]), - Headers = sets:from_list(HrlFiles), - Deps = lists:foldl( - fun (Path, Deps1) -> - dict:store(Path, detect_deps(IncludeDirs, EbinDir, - Modules, Headers, Path), - Deps1) - end, dict:new(), ErlFiles), - {ok, Hdl} = file:open(TargetFile, [write, delayed_write]), - dict:fold( - fun (_Path, [], ok) -> - ok; - (Path, Dep, ok) -> - Module = filename:basename(Path, ".erl"), - ok = file:write(Hdl, [EbinDir, "/", Module, ".beam: ", - Path]), - ok = sets:fold(fun (E, ok) -> file:write(Hdl, [" ", E]) end, - ok, Dep), - file:write(Hdl, ["\n"]) - end, ok, Deps), - ok = file:write(Hdl, [TargetFile, ": ", escript:script_name(), "\n"]), - ok = file:sync(Hdl), - ok = file:close(Hdl). - -detect_deps(IncludeDirs, EbinDir, Modules, Headers, Path) -> - {ok, Forms} = epp:parse_file(Path, IncludeDirs, [{use_specs, true}]), - lists:foldl( - fun ({attribute, _LineNumber, Attribute, Behaviour}, Deps) - when Attribute =:= behaviour orelse Attribute =:= behavior -> - case sets:is_element(Behaviour, Modules) of - true -> sets:add_element( - [EbinDir, "/", atom_to_list(Behaviour), ".beam"], - Deps); - false -> Deps - end; - ({attribute, _LineNumber, file, {FileName, _LineNumber1}}, Deps) -> - case sets:is_element(FileName, Headers) of - true -> sets:add_element(FileName, Deps); - false -> Deps - end; - (_Form, Deps) -> - Deps - end, sets:new(), Forms). diff --git a/include/gm_specs.hrl b/include/gm_specs.hrl deleted file mode 100644 index ee29706e..00000000 --- a/include/gm_specs.hrl +++ /dev/null @@ -1,28 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --type(callback_result() :: 'ok' | {'stop', any()} | {'become', atom(), args()}). --type(args() :: any()). --type(members() :: [pid()]). - --spec(joined/2 :: (args(), members()) -> callback_result()). --spec(members_changed/3 :: (args(), members(), members()) -> callback_result()). --spec(handle_msg/3 :: (args(), pid(), any()) -> callback_result()). --spec(terminate/2 :: (args(), term()) -> any()). - --endif. diff --git a/include/rabbit.hrl b/include/rabbit.hrl deleted file mode 100644 index ac6399c6..00000000 --- a/include/rabbit.hrl +++ /dev/null @@ -1,101 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --record(user, {username, - tags, - auth_backend, %% Module this user came from - impl %% Scratch space for that module - }). - --record(internal_user, {username, password_hash, tags}). --record(permission, {configure, write, read}). --record(user_vhost, {username, virtual_host}). --record(user_permission, {user_vhost, permission}). - --record(vhost, {virtual_host, dummy}). - --record(connection, {protocol, user, timeout_sec, frame_max, vhost, - client_properties, capabilities}). - --record(content, - {class_id, - properties, %% either 'none', or a decoded record/tuple - properties_bin, %% either 'none', or an encoded properties binary - %% Note: at most one of properties and properties_bin can be - %% 'none' at once. - protocol, %% The protocol under which properties_bin was encoded - payload_fragments_rev %% list of binaries, in reverse order (!) - }). - --record(resource, {virtual_host, kind, name}). - --record(exchange, {name, type, durable, auto_delete, internal, arguments, - scratch}). --record(exchange_serial, {name, next}). - --record(amqqueue, {name, durable, auto_delete, exclusive_owner = none, - arguments, pid, slave_pids, mirror_nodes}). - -%% mnesia doesn't like unary records, so we add a dummy 'value' field --record(route, {binding, value = const}). --record(reverse_route, {reverse_binding, value = const}). - --record(binding, {source, key, destination, args = []}). --record(reverse_binding, {destination, key, source, args = []}). - --record(topic_trie_edge, {trie_edge, node_id}). --record(topic_trie_binding, {trie_binding, value = const}). - --record(trie_edge, {exchange_name, node_id, word}). --record(trie_binding, {exchange_name, node_id, destination}). - --record(listener, {node, protocol, host, ip_address, port}). - --record(basic_message, {exchange_name, routing_keys = [], content, id, - is_persistent}). - --record(ssl_socket, {tcp, ssl}). --record(delivery, {mandatory, immediate, sender, message, msg_seq_no}). --record(amqp_error, {name, explanation = "", method = none}). - --record(event, {type, props, timestamp}). - --record(message_properties, {expiry, needs_confirming = false}). - -%%---------------------------------------------------------------------------- - --define(COPYRIGHT_MESSAGE, "Copyright (C) 2007-2011 VMware, Inc."). --define(INFORMATION_MESSAGE, "Licensed under the MPL. See http://www.rabbitmq.com/"). --define(PROTOCOL_VERSION, "AMQP 0-9-1 / 0-9 / 0-8"). --define(ERTS_MINIMUM, "5.6.3"). - --define(MAX_WAIT, 16#ffffffff). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --define(ROUTING_HEADERS, [<<"CC">>, <<"BCC">>]). --define(DELETED_HEADER, <<"BCC">>). - --ifdef(debug). --define(LOGDEBUG0(F), rabbit_log:debug(F)). --define(LOGDEBUG(F,A), rabbit_log:debug(F,A)). --define(LOGMESSAGE(D,C,M,Co), rabbit_log:message(D,C,M,Co)). --else. --define(LOGDEBUG0(F), ok). --define(LOGDEBUG(F,A), ok). --define(LOGMESSAGE(D,C,M,Co), ok). --endif. diff --git a/include/rabbit_auth_backend_spec.hrl b/include/rabbit_auth_backend_spec.hrl deleted file mode 100644 index 803bb75c..00000000 --- a/include/rabbit_auth_backend_spec.hrl +++ /dev/null @@ -1,31 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). - --spec(check_user_login/2 :: (rabbit_types:username(), [term()]) -> - {'ok', rabbit_types:user()} | - {'refused', string(), [any()]} | - {'error', any()}). --spec(check_vhost_access/2 :: (rabbit_types:user(), rabbit_types:vhost()) -> - boolean() | {'error', any()}). --spec(check_resource_access/3 :: (rabbit_types:user(), - rabbit_types:r(atom()), - rabbit_access_control:permission_atom()) -> - boolean() | {'error', any()}). --endif. diff --git a/include/rabbit_auth_mechanism_spec.hrl b/include/rabbit_auth_mechanism_spec.hrl deleted file mode 100644 index 614a3eed..00000000 --- a/include/rabbit_auth_mechanism_spec.hrl +++ /dev/null @@ -1,28 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(should_offer/1 :: (rabbit_net:socket()) -> boolean()). --spec(init/1 :: (rabbit_net:socket()) -> any()). --spec(handle_response/2 :: (binary(), any()) -> - {'ok', rabbit_types:user()} | - {'challenge', binary(), any()} | - {'protocol_error', string(), [any()]} | - {'refused', string(), [any()]}). - --endif. diff --git a/include/rabbit_backing_queue_spec.hrl b/include/rabbit_backing_queue_spec.hrl deleted file mode 100644 index ee102f5e..00000000 --- a/include/rabbit_backing_queue_spec.hrl +++ /dev/null @@ -1,68 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --type(fetch_result(Ack) :: - ('empty' | - %% Message, IsDelivered, AckTag, Remaining_Len - {rabbit_types:basic_message(), boolean(), Ack, non_neg_integer()})). --type(is_durable() :: boolean()). --type(attempt_recovery() :: boolean()). --type(purged_msg_count() :: non_neg_integer()). --type(confirm_required() :: boolean()). --type(message_properties_transformer() :: - fun ((rabbit_types:message_properties()) - -> rabbit_types:message_properties())). --type(async_callback() :: fun ((atom(), fun ((atom(), state()) -> state())) -> 'ok')). - --spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(init/3 :: (rabbit_types:amqqueue(), attempt_recovery(), - async_callback()) -> state()). --spec(terminate/2 :: (any(), state()) -> state()). --spec(delete_and_terminate/2 :: (any(), state()) -> state()). --spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). --spec(publish/4 :: (rabbit_types:basic_message(), - rabbit_types:message_properties(), pid(), state()) -> - state()). --spec(publish_delivered/5 :: (true, rabbit_types:basic_message(), - rabbit_types:message_properties(), pid(), state()) - -> {ack(), state()}; - (false, rabbit_types:basic_message(), - rabbit_types:message_properties(), pid(), state()) - -> {undefined, state()}). --spec(drain_confirmed/1 :: (state()) -> {[rabbit_guid:guid()], state()}). --spec(dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> state()). --spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; - (false, state()) -> {fetch_result(undefined), state()}). --spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). --spec(requeue/3 :: ([ack()], message_properties_transformer(), state()) - -> {[rabbit_guid:guid()], state()}). --spec(len/1 :: (state()) -> non_neg_integer()). --spec(is_empty/1 :: (state()) -> boolean()). --spec(set_ram_duration_target/2 :: - (('undefined' | 'infinity' | number()), state()) -> state()). --spec(ram_duration/1 :: (state()) -> {number(), state()}). --spec(needs_timeout/1 :: (state()) -> 'false' | 'timed' | 'idle'). --spec(timeout/1 :: (state()) -> state()). --spec(handle_pre_hibernate/1 :: (state()) -> state()). --spec(status/1 :: (state()) -> [{atom(), any()}]). --spec(invoke/3 :: (atom(), fun ((atom(), A) -> A), state()) -> state()). --spec(is_duplicate/2 :: - (rabbit_types:basic_message(), state()) -> - {'false'|'published'|'discarded', state()}). --spec(discard/3 :: (rabbit_types:basic_message(), pid(), state()) -> state()). diff --git a/include/rabbit_exchange_type_spec.hrl b/include/rabbit_exchange_type_spec.hrl deleted file mode 100644 index f6283ef7..00000000 --- a/include/rabbit_exchange_type_spec.hrl +++ /dev/null @@ -1,38 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --type(tx() :: 'transaction' | 'none'). --type(serial() :: pos_integer() | tx()). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(serialise_events/0 :: () -> boolean()). --spec(route/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> rabbit_router:match_result()). --spec(validate/1 :: (rabbit_types:exchange()) -> 'ok'). --spec(create/2 :: (tx(), rabbit_types:exchange()) -> 'ok'). --spec(delete/3 :: (tx(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(add_binding/3 :: (serial(), rabbit_types:exchange(), - rabbit_types:binding()) -> 'ok'). --spec(remove_bindings/3 :: (serial(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). - --endif. diff --git a/include/rabbit_msg_store.hrl b/include/rabbit_msg_store.hrl deleted file mode 100644 index e9150a97..00000000 --- a/include/rabbit_msg_store.hrl +++ /dev/null @@ -1,25 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit.hrl"). - --ifdef(use_specs). - --type(msg() :: any()). - --endif. - --record(msg_location, {msg_id, ref_count, file, offset, total_size}). diff --git a/include/rabbit_msg_store_index.hrl b/include/rabbit_msg_store_index.hrl deleted file mode 100644 index 2ae5b000..00000000 --- a/include/rabbit_msg_store_index.hrl +++ /dev/null @@ -1,45 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit_msg_store.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(dir() :: any()). --type(index_state() :: any()). --type(keyvalue() :: any()). --type(fieldpos() :: non_neg_integer()). --type(fieldvalue() :: any()). - --spec(new/1 :: (dir()) -> index_state()). --spec(recover/1 :: (dir()) -> rabbit_types:ok_or_error2(index_state(), any())). --spec(lookup/2 :: - (rabbit_types:msg_id(), index_state()) -> ('not_found' | keyvalue())). --spec(insert/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update_fields/3 :: (rabbit_types:msg_id(), ({fieldpos(), fieldvalue()} | - [{fieldpos(), fieldvalue()}]), - index_state()) -> 'ok'). --spec(delete/2 :: (rabbit_types:msg_id(), index_state()) -> 'ok'). --spec(delete_object/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(delete_by_file/2 :: (fieldvalue(), index_state()) -> 'ok'). --spec(terminate/1 :: (index_state()) -> any()). - --endif. - -%%---------------------------------------------------------------------------- diff --git a/packaging/RPMS/Fedora/Makefile b/packaging/RPMS/Fedora/Makefile deleted file mode 100644 index c67d8fd6..00000000 --- a/packaging/RPMS/Fedora/Makefile +++ /dev/null @@ -1,49 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -TOP_DIR=$(shell pwd) -#Under debian we do not want to check build dependencies, since that -#only checks build-dependencies using rpms, not debs -DEFINES=--define '_topdir $(TOP_DIR)' --define '_tmppath $(TOP_DIR)/tmp' --define '_sysconfdir /etc' --define '_localstatedir /var' - -ifndef RPM_OS -RPM_OS=fedora -endif - -ifeq "$(RPM_OS)" "suse" -REQUIRES=/sbin/chkconfig /sbin/service -OS_DEFINES=--define '_initrddir /etc/init.d' --define 'dist .suse' -else -REQUIRES=chkconfig initscripts -OS_DEFINES=--define '_initrddir /etc/rc.d/init.d' -endif - -rpms: clean server - -prepare: - mkdir -p BUILD SOURCES SPECS SRPMS RPMS tmp - cp $(TARBALL_DIR)/$(TARBALL) SOURCES - cp rabbitmq-server.spec SPECS - sed -i 's|%%VERSION%%|$(VERSION)|;s|%%REQUIRES%%|$(REQUIRES)|' \ - SPECS/rabbitmq-server.spec - - cp ${COMMON_DIR}/* SOURCES/ - sed -i \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=/var/lock/subsys/$$NAME|' \ - SOURCES/rabbitmq-server.init -ifeq "$(RPM_OS)" "fedora" -# Fedora says that only vital services should have Default-Start - sed -i -e '/^# Default-Start:/d;/^# Default-Stop:/d' \ - SOURCES/rabbitmq-server.init -endif - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - SOURCES/rabbitmq-script-wrapper - cp rabbitmq-server.logrotate SOURCES/rabbitmq-server.logrotate - -server: prepare - rpmbuild -ba --nodeps SPECS/rabbitmq-server.spec $(DEFINES) $(OS_DEFINES) - -clean: - rm -rf SOURCES SPECS RPMS SRPMS BUILD tmp diff --git a/packaging/RPMS/Fedora/rabbitmq-server.logrotate b/packaging/RPMS/Fedora/rabbitmq-server.logrotate deleted file mode 100644 index 6b657614..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /sbin/service rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec deleted file mode 100644 index ffc826eb..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ /dev/null @@ -1,205 +0,0 @@ -%define debug_package %{nil} - -Name: rabbitmq-server -Version: %%VERSION%% -Release: 1%{?dist} -License: MPLv1.1 -Group: Development/Libraries -Source: http://www.rabbitmq.com/releases/rabbitmq-server/v%{version}/%{name}-%{version}.tar.gz -Source1: rabbitmq-server.init -Source2: rabbitmq-script-wrapper -Source3: rabbitmq-server.logrotate -Source4: rabbitmq-server.ocf -URL: http://www.rabbitmq.com/ -BuildArch: noarch -BuildRequires: erlang >= R12B-3, python-simplejson, xmlto, libxslt -Requires: erlang >= R12B-3, logrotate -BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-%{_arch}-root -Summary: The RabbitMQ server -Requires(post): %%REQUIRES%% -Requires(pre): %%REQUIRES%% - -%description -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -# We want to install into /usr/lib, even on 64-bit platforms -%define _rabbit_libdir %{_exec_prefix}/lib/rabbitmq -%define _rabbit_erllibdir %{_rabbit_libdir}/lib/rabbitmq_server-%{version} -%define _rabbit_wrapper %{_builddir}/`basename %{S:2}` -%define _rabbit_server_ocf %{_builddir}/`basename %{S:4}` -%define _plugins_state_dir %{_localstatedir}/lib/rabbitmq/plugins - -%define _maindir %{buildroot}%{_rabbit_erllibdir} - -%prep -%setup -q - -%build -cp %{S:2} %{_rabbit_wrapper} -cp %{S:4} %{_rabbit_server_ocf} -make %{?_smp_mflags} - -%install -rm -rf %{buildroot} - -make install TARGET_DIR=%{_maindir} \ - SBIN_DIR=%{buildroot}%{_rabbit_libdir}/bin \ - MAN_DIR=%{buildroot}%{_mandir} - -mkdir -p %{buildroot}%{_localstatedir}/lib/rabbitmq/mnesia -mkdir -p %{buildroot}%{_localstatedir}/log/rabbitmq - -#Copy all necessary lib files etc. -install -p -D -m 0755 %{S:1} %{buildroot}%{_initrddir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmqctl -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_server_ocf} %{buildroot}%{_exec_prefix}/lib/ocf/resource.d/rabbitmq/rabbitmq-server - -install -p -D -m 0644 %{S:3} %{buildroot}%{_sysconfdir}/logrotate.d/rabbitmq-server - -mkdir -p %{buildroot}%{_sysconfdir}/rabbitmq - -rm %{_maindir}/LICENSE %{_maindir}/LICENSE-MPL-RabbitMQ %{_maindir}/INSTALL - -#Build the list of files -echo '%defattr(-,root,root, -)' >%{_builddir}/%{name}.files -find %{buildroot} -path %{buildroot}%{_sysconfdir} -prune -o '!' -type d -printf "/%%P\n" >>%{_builddir}/%{name}.files - -%pre - -if [ $1 -gt 1 ]; then - # Upgrade - stop previous instance of rabbitmq-server init.d script - /sbin/service rabbitmq-server stop -fi - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - groupadd -r rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - useradd -r -g rabbitmq -d %{_localstatedir}/lib/rabbitmq rabbitmq \ - -c "RabbitMQ messaging server" -fi - -%post -/sbin/chkconfig --add %{name} -if [ -f %{_sysconfdir}/rabbitmq/rabbitmq.conf ] && [ ! -f %{_sysconfdir}/rabbitmq/rabbitmq-env.conf ]; then - mv %{_sysconfdir}/rabbitmq/rabbitmq.conf %{_sysconfdir}/rabbitmq/rabbitmq-env.conf -fi - -%preun -if [ $1 = 0 ]; then - #Complete uninstall - /sbin/service rabbitmq-server stop - /sbin/chkconfig --del rabbitmq-server - - # We do not remove /var/log and /var/lib directories - # Leave rabbitmq user and group -fi - -# Clean out plugin activation state, both on uninstall and upgrade -rm -rf %{_plugins_state_dir} -for ext in rel script boot ; do - rm -f %{_rabbit_erllibdir}/ebin/rabbit.$ext -done - -%files -f ../%{name}.files -%defattr(-,root,root,-) -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/lib/rabbitmq -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/log/rabbitmq -%dir %{_sysconfdir}/rabbitmq -%{_initrddir}/rabbitmq-server -%config(noreplace) %{_sysconfdir}/logrotate.d/rabbitmq-server -%doc LICENSE LICENSE-MPL-RabbitMQ - -%clean -rm -rf %{buildroot} - -%changelog -* Thu Jun 9 2011 jerryk@vmware.com 2.5.0-1 -- New Upstream Release - -* Thu Apr 7 2011 Alexandru Scvortov 2.4.1-1 -- New Upstream Release - -* Tue Mar 22 2011 Alexandru Scvortov 2.4.0-1 -- New Upstream Release - -* Thu Feb 3 2011 simon@rabbitmq.com 2.3.1-1 -- New Upstream Release - -* Tue Feb 1 2011 simon@rabbitmq.com 2.3.0-1 -- New Upstream Release - -* Mon Nov 29 2010 rob@rabbitmq.com 2.2.0-1 -- New Upstream Release - -* Tue Oct 19 2010 vlad@rabbitmq.com 2.1.1-1 -- New Upstream Release - -* Tue Sep 14 2010 marek@rabbitmq.com 2.1.0-1 -- New Upstream Release - -* Mon Aug 23 2010 mikeb@rabbitmq.com 2.0.0-1 -- New Upstream Release - -* Wed Jul 14 2010 Emile Joubert 1.8.1-1 -- New Upstream Release - -* Tue Jun 15 2010 Matthew Sackman 1.8.0-1 -- New Upstream Release - -* Mon Feb 15 2010 Matthew Sackman 1.7.2-1 -- New Upstream Release - -* Fri Jan 22 2010 Matthew Sackman 1.7.1-1 -- New Upstream Release - -* Mon Oct 5 2009 David Wragg 1.7.0-1 -- New upstream release - -* Wed Jun 17 2009 Matthias Radestock 1.6.0-1 -- New upstream release - -* Tue May 19 2009 Matthias Radestock 1.5.5-1 -- Maintenance release for the 1.5.x series - -* Mon Apr 6 2009 Matthias Radestock 1.5.4-1 -- Maintenance release for the 1.5.x series - -* Tue Feb 24 2009 Tony Garnock-Jones 1.5.3-1 -- Maintenance release for the 1.5.x series - -* Mon Feb 23 2009 Tony Garnock-Jones 1.5.2-1 -- Maintenance release for the 1.5.x series - -* Mon Jan 19 2009 Ben Hood <0x6e6562@gmail.com> 1.5.1-1 -- Maintenance release for the 1.5.x series - -* Wed Dec 17 2008 Matthias Radestock 1.5.0-1 -- New upstream release - -* Thu Jul 24 2008 Tony Garnock-Jones 1.4.0-1 -- New upstream release - -* Mon Mar 3 2008 Adrien Pierard 1.3.0-1 -- New upstream release - -* Wed Sep 26 2007 Simon MacMullen 1.2.0-1 -- New upstream release - -* Wed Aug 29 2007 Simon MacMullen 1.1.1-1 -- New upstream release - -* Mon Jul 30 2007 Simon MacMullen 1.1.0-1.alpha -- New upstream release - -* Tue Jun 12 2007 Hubert Plociniczak 1.0.0-1.20070607 -- Building from source tarball, added starting script, stopping - -* Mon May 21 2007 Hubert Plociniczak 1.0.0-1.alpha -- Initial build of server library of RabbitMQ package diff --git a/packaging/common/rabbitmq-script-wrapper b/packaging/common/rabbitmq-script-wrapper deleted file mode 100644 index 23d2a06c..00000000 --- a/packaging/common/rabbitmq-script-wrapper +++ /dev/null @@ -1,42 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Escape spaces and quotes, because shell is revolting. -for arg in "$@" ; do - # Escape quotes in parameters, so that they're passed through cleanly. - arg=$(sed -e 's/"/\\"/g' <<-END - $arg - END - ) - CMDLINE="${CMDLINE} \"${arg}\"" -done - -cd /var/lib/rabbitmq - -SCRIPT=`basename $0` - -if [ `id -u` = 0 ] ; then - @SU_RABBITMQ_SH_C@ "/usr/lib/rabbitmq/bin/${SCRIPT} ${CMDLINE}" -elif [ `id -u` = `id -u rabbitmq` ] ; then - /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -else - /usr/lib/rabbitmq/bin/${SCRIPT} - echo - echo "Only root or rabbitmq should run ${SCRIPT}" - echo - exit 1 -fi diff --git a/packaging/common/rabbitmq-server.init b/packaging/common/rabbitmq-server.init deleted file mode 100644 index d8a7a94d..00000000 --- a/packaging/common/rabbitmq-server.init +++ /dev/null @@ -1,154 +0,0 @@ -#!/bin/sh -# -# rabbitmq-server RabbitMQ broker -# -# chkconfig: - 80 05 -# description: Enable AMQP service provided by RabbitMQ -# - -### BEGIN INIT INFO -# Provides: rabbitmq-server -# Required-Start: $remote_fs $network -# Required-Stop: $remote_fs $network -# Default-Start: 3 4 5 -# Default-Stop: 0 1 2 6 -# Description: RabbitMQ broker -# Short-Description: Enable AMQP service provided by RabbitMQ broker -### END INIT INFO - -PATH=/sbin:/usr/sbin:/bin:/usr/bin -NAME=rabbitmq-server -DAEMON=/usr/sbin/${NAME} -CONTROL=/usr/sbin/rabbitmqctl -DESC=rabbitmq-server -USER=rabbitmq -ROTATE_SUFFIX= -INIT_LOG_DIR=/var/log/rabbitmq - -LOCK_FILE= # This is filled in when building packages - -test -x $DAEMON || exit 0 -test -x $CONTROL || exit 0 - -RETVAL=0 -set -e - -start_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - echo RabbitMQ is currently running - else - RETVAL=0 - set +e - setsid sh -c "$DAEMON > ${INIT_LOG_DIR}/startup_log \ - 2> ${INIT_LOG_DIR}/startup_err" & - $CONTROL wait >/dev/null 2>&1 - RETVAL=$? - set -e - case "$RETVAL" in - 0) - echo SUCCESS - if [ -n "$LOCK_FILE" ] ; then - touch $LOCK_FILE - fi - ;; - *) - echo FAILED - check ${INIT_LOG_DIR}/startup_\{log, _err\} - RETVAL=1 - ;; - esac - fi -} - -stop_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - set +e - $CONTROL stop > ${INIT_LOG_DIR}/shutdown_log 2> ${INIT_LOG_DIR}/shutdown_err - RETVAL=$? - set -e - if [ $RETVAL = 0 ] ; then - if [ -n "$LOCK_FILE" ] ; then - rm -f $LOCK_FILE - fi - else - echo FAILED - check ${INIT_LOG_DIR}/shutdown_log, _err - fi - else - echo RabbitMQ is not running - RETVAL=0 - fi -} - -status_rabbitmq() { - set +e - if [ "$1" != "quiet" ] ; then - $CONTROL status 2>&1 - else - $CONTROL status > /dev/null 2>&1 - fi - if [ $? != 0 ] ; then - RETVAL=3 - fi - set -e -} - -rotate_logs_rabbitmq() { - set +e - $CONTROL rotate_logs ${ROTATE_SUFFIX} - if [ $? != 0 ] ; then - RETVAL=1 - fi - set -e -} - -restart_running_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - restart_rabbitmq - else - echo RabbitMQ is not runnning - RETVAL=0 - fi -} - -restart_rabbitmq() { - stop_rabbitmq - start_rabbitmq -} - -case "$1" in - start) - echo -n "Starting $DESC: " - start_rabbitmq - echo "$NAME." - ;; - stop) - echo -n "Stopping $DESC: " - stop_rabbitmq - echo "$NAME." - ;; - status) - status_rabbitmq - ;; - rotate-logs) - echo -n "Rotating log files for $DESC: " - rotate_logs_rabbitmq - ;; - force-reload|reload|restart) - echo -n "Restarting $DESC: " - restart_rabbitmq - echo "$NAME." - ;; - try-restart) - echo -n "Restarting $DESC: " - restart_running_rabbitmq - echo "$NAME." - ;; - *) - echo "Usage: $0 {start|stop|status|rotate-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 - RETVAL=1 - ;; -esac - -exit $RETVAL diff --git a/packaging/common/rabbitmq-server.ocf b/packaging/common/rabbitmq-server.ocf deleted file mode 100755 index d58c48ed..00000000 --- a/packaging/common/rabbitmq-server.ocf +++ /dev/null @@ -1,341 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -## -## OCF Resource Agent compliant rabbitmq-server resource script. -## - -## OCF instance parameters -## OCF_RESKEY_server -## OCF_RESKEY_ctl -## OCF_RESKEY_nodename -## OCF_RESKEY_ip -## OCF_RESKEY_port -## OCF_RESKEY_config_file -## OCF_RESKEY_log_base -## OCF_RESKEY_mnesia_base -## OCF_RESKEY_server_start_args - -####################################################################### -# Initialization: - -: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/heartbeat} -. ${OCF_FUNCTIONS_DIR}/.ocf-shellfuncs - -####################################################################### - -OCF_RESKEY_server_default="/usr/sbin/rabbitmq-server" -OCF_RESKEY_ctl_default="/usr/sbin/rabbitmqctl" -OCF_RESKEY_nodename_default="rabbit@localhost" -OCF_RESKEY_log_base_default="/var/log/rabbitmq" -: ${OCF_RESKEY_server=${OCF_RESKEY_server_default}} -: ${OCF_RESKEY_ctl=${OCF_RESKEY_ctl_default}} -: ${OCF_RESKEY_nodename=${OCF_RESKEY_nodename_default}} -: ${OCF_RESKEY_log_base=${OCF_RESKEY_log_base_default}} - -meta_data() { - cat < - - -1.0 - - -Resource agent for RabbitMQ-server - - -Resource agent for RabbitMQ-server - - - - -The path to the rabbitmq-server script - -Path to rabbitmq-server - - - - - -The path to the rabbitmqctl script - -Path to rabbitmqctl - - - - - -The node name for rabbitmq-server - -Node name - - - - - -The IP address for rabbitmq-server to listen on - -IP Address - - - - - -The IP Port for rabbitmq-server to listen on - -IP Port - - - - - -Location of the config file (without the .config suffix) - -Config file path (without the .config suffix) - - - - - -Location of the directory under which logs will be created - -Log base path - - - - - -Location of the directory under which mnesia will store data - -Mnesia base path - - - - - -Additional arguments provided to the server on startup - -Server start arguments - - - - - - - - - - - - - - -END -} - -rabbit_usage() { - cat < /dev/null 2> /dev/null - rc=$? - case "$rc" in - 0) - ocf_log debug "RabbitMQ server is running normally" - return $OCF_SUCCESS - ;; - 2) - ocf_log debug "RabbitMQ server is not running" - return $OCF_NOT_RUNNING - ;; - *) - ocf_log err "Unexpected return from rabbitmqctl $NODENAME_ARG $action: $rc" - exit $OCF_ERR_GENERIC - esac -} - -rabbit_start() { - local rc - - if rabbit_status; then - ocf_log info "Resource already running." - return $OCF_SUCCESS - fi - - export_vars - - setsid sh -c "$RABBITMQ_SERVER > ${RABBITMQ_LOG_BASE}/startup_log 2> ${RABBITMQ_LOG_BASE}/startup_err" & - - # Wait for the server to come up. - # Let the CRM/LRM time us out if required - rabbit_wait - rc=$? - if [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server start failed: $rc" - exit $OCF_ERR_GENERIC - fi - - return $OCF_SUCCESS -} - -rabbit_stop() { - local rc - - if ! rabbit_status; then - ocf_log info "Resource not running." - return $OCF_SUCCESS - fi - - $RABBITMQ_CTL stop - rc=$? - - if [ "$rc" != 0 ]; then - ocf_log err "rabbitmq-server stop command failed: $RABBITMQ_CTL stop, $rc" - return $rc - fi - - # Spin waiting for the server to shut down. - # Let the CRM/LRM time us out if required - stop_wait=1 - while [ $stop_wait = 1 ]; do - rabbit_status - rc=$? - if [ "$rc" = $OCF_NOT_RUNNING ]; then - stop_wait=0 - break - elif [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server stop failed: $rc" - exit $OCF_ERR_GENERIC - fi - sleep 1 - done - - return $OCF_SUCCESS -} - -rabbit_monitor() { - rabbit_status - return $? -} - -case $__OCF_ACTION in - meta-data) - meta_data - exit $OCF_SUCCESS - ;; - usage|help) - rabbit_usage - exit $OCF_SUCCESS - ;; -esac - -if ocf_is_probe; then - rabbit_validate_partial -else - rabbit_validate_full -fi - -case $__OCF_ACTION in - start) - rabbit_start - ;; - stop) - rabbit_stop - ;; - status|monitor) - rabbit_monitor - ;; - validate-all) - exit $OCF_SUCCESS - ;; - *) - rabbit_usage - exit $OCF_ERR_UNIMPLEMENTED - ;; -esac - -exit $? diff --git a/packaging/debs/Debian/Makefile b/packaging/debs/Debian/Makefile deleted file mode 100644 index 38c81134..00000000 --- a/packaging/debs/Debian/Makefile +++ /dev/null @@ -1,45 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -DEBIAN_ORIG_TARBALL=$(shell echo $(TARBALL) | sed -e 's:\(.*\)-\(.*\)\(\.tar\.gz\):\1_\2\.orig\3:g') -UNPACKED_DIR=rabbitmq-server-$(VERSION) -PACKAGENAME=rabbitmq-server -SIGNING_KEY_ID=056E8E56 - -ifneq "$(UNOFFICIAL_RELEASE)" "" - SIGNING=-us -uc -else - SIGNING=-k$(SIGNING_KEY_ID) -endif - -all: - @echo 'Please choose a target from the Makefile.' - -package: clean - cp $(TARBALL_DIR)/$(TARBALL) $(DEBIAN_ORIG_TARBALL) - tar -zxf $(DEBIAN_ORIG_TARBALL) - cp -r debian $(UNPACKED_DIR) - cp $(COMMON_DIR)/* $(UNPACKED_DIR)/debian/ -# Debian and descendants differ from most other distros in that -# runlevel 2 should start network services. - sed -i \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=|' \ - -e 's|^\(# Default-Start:\).*$$|\1 2 3 4 5|' \ - -e 's|^\(# Default-Stop:\).*$$|\1 0 1 6|' \ - $(UNPACKED_DIR)/debian/rabbitmq-server.init - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - $(UNPACKED_DIR)/debian/rabbitmq-script-wrapper - chmod a+x $(UNPACKED_DIR)/debian/rules - UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) - cd $(UNPACKED_DIR); GNUPGHOME=$(GNUPG_PATH)/.gnupg dpkg-buildpackage -rfakeroot $(SIGNING) - rm -rf $(UNPACKED_DIR) - -clean: - rm -rf $(UNPACKED_DIR) - rm -f $(PACKAGENAME)_*.tar.gz - rm -f $(PACKAGENAME)_*.diff.gz - rm -f $(PACKAGENAME)_*.dsc - rm -f $(PACKAGENAME)_*_*.changes - rm -f $(PACKAGENAME)_*_*.deb diff --git a/packaging/debs/Debian/check-changelog.sh b/packaging/debs/Debian/check-changelog.sh deleted file mode 100755 index ff25e648..00000000 --- a/packaging/debs/Debian/check-changelog.sh +++ /dev/null @@ -1,29 +0,0 @@ -#!/bin/sh - -PACKAGE_NAME=$1 -cd $2 - -CHANGELOG_VERSION=$(dpkg-parsechangelog | sed -n 's/^Version: \(.*\)-[^-]*$/\1/p') - -if [ "${CHANGELOG_VERSION}" != "${VERSION}" ]; then - if [ -n "${UNOFFICIAL_RELEASE}" ]; then - echo "${PACKAGE_NAME} (${VERSION}-1) unstable; urgency=low" > debian/changelog.tmp - echo >> debian/changelog.tmp - echo " * Unofficial release" >> debian/changelog.tmp - echo >> debian/changelog.tmp - echo " -- Nobody $(date -R)" >> debian/changelog.tmp - echo >> debian/changelog.tmp - cat debian/changelog >> debian/changelog.tmp - mv -f debian/changelog.tmp debian/changelog - - exit 0 - else - echo - echo There is no entry in debian/changelog for version ${VERSION}! - echo Please create a changelog entry, or set the variable - echo UNOFFICIAL_RELEASE to automatically create one. - echo - - exit 1 - fi -fi diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog deleted file mode 100644 index 1cab4235..00000000 --- a/packaging/debs/Debian/debian/changelog +++ /dev/null @@ -1,174 +0,0 @@ -rabbitmq-server (2.5.0-1) lucid; urgency=low - - * New Upstream Release - - -- Thu, 09 Jun 2011 07:20:29 -0700 - -rabbitmq-server (2.4.1-1) lucid; urgency=low - - * New Upstream Release - - -- Alexandru Scvortov Thu, 07 Apr 2011 16:49:22 +0100 - -rabbitmq-server (2.4.0-1) lucid; urgency=low - - * New Upstream Release - - -- Alexandru Scvortov Tue, 22 Mar 2011 17:34:31 +0000 - -rabbitmq-server (2.3.1-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Thu, 03 Feb 2011 12:43:56 +0000 - -rabbitmq-server (2.3.0-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Tue, 01 Feb 2011 12:52:16 +0000 - -rabbitmq-server (2.2.0-1) lucid; urgency=low - - * New Upstream Release - - -- Rob Harrop Mon, 29 Nov 2010 12:24:48 +0000 - -rabbitmq-server (2.1.1-1) lucid; urgency=low - - * New Upstream Release - - -- Vlad Alexandru Ionescu Tue, 19 Oct 2010 17:20:10 +0100 - -rabbitmq-server (2.1.0-1) lucid; urgency=low - - * New Upstream Release - - -- Marek Majkowski Tue, 14 Sep 2010 14:20:17 +0100 - -rabbitmq-server (2.0.0-1) karmic; urgency=low - - * New Upstream Release - - -- Michael Bridgen Mon, 23 Aug 2010 14:55:39 +0100 - -rabbitmq-server (1.8.1-1) lucid; urgency=low - - * New Upstream Release - - -- Emile Joubert Wed, 14 Jul 2010 15:05:24 +0100 - -rabbitmq-server (1.8.0-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Tue, 15 Jun 2010 12:48:48 +0100 - -rabbitmq-server (1.7.2-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Mon, 15 Feb 2010 15:54:47 +0000 - -rabbitmq-server (1.7.1-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Fri, 22 Jan 2010 14:14:29 +0000 - -rabbitmq-server (1.7.0-1) intrepid; urgency=low - - * New Upstream Release - - -- David Wragg Mon, 05 Oct 2009 13:44:41 +0100 - -rabbitmq-server (1.6.0-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 16 Jun 2009 15:02:58 +0100 - -rabbitmq-server (1.5.5-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 19 May 2009 09:57:54 +0100 - -rabbitmq-server (1.5.4-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Mon, 06 Apr 2009 09:19:32 +0100 - -rabbitmq-server (1.5.3-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Tue, 24 Feb 2009 18:23:33 +0000 - -rabbitmq-server (1.5.2-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Mon, 23 Feb 2009 16:03:38 +0000 - -rabbitmq-server (1.5.1-1) hardy; urgency=low - - * New Upstream Release - - -- Simon MacMullen Mon, 19 Jan 2009 15:46:13 +0000 - -rabbitmq-server (1.5.0-1) testing; urgency=low - - * New Upstream Release - - -- Matthias Radestock Wed, 17 Dec 2008 18:23:47 +0000 - -rabbitmq-server (1.4.0-1) testing; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Thu, 24 Jul 2008 13:21:48 +0100 - -rabbitmq-server (1.3.0-1) testing; urgency=low - - * New Upstream Release - - -- Adrien Pierard Mon, 03 Mar 2008 15:34:38 +0000 - -rabbitmq-server (1.2.0-2) testing; urgency=low - - * Fixed rabbitmqctl wrapper script - - -- Simon MacMullen Fri, 05 Oct 2007 11:55:00 +0100 - -rabbitmq-server (1.2.0-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 26 Sep 2007 11:49:26 +0100 - -rabbitmq-server (1.1.1-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 29 Aug 2007 12:03:15 +0100 - -rabbitmq-server (1.1.0-alpha-2) testing; urgency=low - - * Fixed erlang-nox dependency - - -- Simon MacMullen Thu, 02 Aug 2007 11:27:13 +0100 - -rabbitmq-server (1.1.0-alpha-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Fri, 20 Jul 2007 18:17:33 +0100 - -rabbitmq-server (1.0.0-alpha-1) unstable; urgency=low - - * Initial release - - -- Tony Garnock-Jones Wed, 31 Jan 2007 19:06:33 +0000 - diff --git a/packaging/debs/Debian/debian/compat b/packaging/debs/Debian/debian/compat deleted file mode 100644 index 7ed6ff82..00000000 --- a/packaging/debs/Debian/debian/compat +++ /dev/null @@ -1 +0,0 @@ -5 diff --git a/packaging/debs/Debian/debian/control b/packaging/debs/Debian/debian/control deleted file mode 100644 index 45f5c5c4..00000000 --- a/packaging/debs/Debian/debian/control +++ /dev/null @@ -1,15 +0,0 @@ -Source: rabbitmq-server -Section: net -Priority: extra -Maintainer: RabbitMQ Team -Build-Depends: cdbs, debhelper (>= 5), erlang-dev, python-simplejson, xmlto, xsltproc -Standards-Version: 3.8.0 - -Package: rabbitmq-server -Architecture: all -Depends: erlang-nox (>= 1:12.b.3), adduser, logrotate, ${misc:Depends} -Description: An AMQP server written in Erlang - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. -Homepage: http://www.rabbitmq.com/ diff --git a/packaging/debs/Debian/debian/copyright b/packaging/debs/Debian/debian/copyright deleted file mode 100755 index 7206bb9b..00000000 --- a/packaging/debs/Debian/debian/copyright +++ /dev/null @@ -1,502 +0,0 @@ -This package was debianized by Tony Garnock-Jones on -Wed, 3 Jan 2007 15:43:44 +0000. - -It was downloaded from http://www.rabbitmq.com/ - -The files codegen/amqp-rabbitmq-0.8.json and -codegen/amqp-rabbitmq-0.9.1.json are covered by the following terms: - - "Copyright (C) 2008-2011 VMware, Inc. - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this file (the Software), to deal in the - Software without restriction, including without limitation the - rights to use, copy, modify, merge, publish, distribute, - sublicense, and/or sell copies of the Software, and to permit - persons to whom the Software is furnished to do so, subject to - the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - OTHER DEALINGS IN THE SOFTWARE." - -The rest of this package is licensed under the Mozilla Public License 1.1 -Authors and Copyright are as described below: - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved. - - - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] - - - - - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. - -The Debian packaging is (C) 2007-2011, VMware, Inc. and is licensed -under the MPL 1.1, see above. diff --git a/packaging/debs/Debian/debian/dirs b/packaging/debs/Debian/debian/dirs deleted file mode 100644 index 625b7d41..00000000 --- a/packaging/debs/Debian/debian/dirs +++ /dev/null @@ -1,9 +0,0 @@ -usr/lib/rabbitmq/bin -usr/lib/erlang/lib -usr/sbin -usr/share/man -var/lib/rabbitmq/mnesia -var/log/rabbitmq -etc/logrotate.d -etc/rabbitmq - diff --git a/packaging/debs/Debian/debian/postinst b/packaging/debs/Debian/debian/postinst deleted file mode 100644 index b11340ef..00000000 --- a/packaging/debs/Debian/debian/postinst +++ /dev/null @@ -1,60 +0,0 @@ -#!/bin/sh -# postinst script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `configure' -# * `abort-upgrade' -# * `abort-remove' `in-favour' -# -# * `abort-remove' -# * `abort-deconfigure' `in-favour' -# `removing' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - addgroup --system rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - adduser --system --ingroup rabbitmq --home /var/lib/rabbitmq \ - --no-create-home --gecos "RabbitMQ messaging server" \ - --disabled-login rabbitmq -fi - -chown -R rabbitmq:rabbitmq /var/lib/rabbitmq -chown -R rabbitmq:rabbitmq /var/log/rabbitmq - -case "$1" in - configure) - if [ -f /etc/rabbitmq/rabbitmq.conf ] && \ - [ ! -f /etc/rabbitmq/rabbitmq-env.conf ]; then - mv /etc/rabbitmq/rabbitmq.conf /etc/rabbitmq/rabbitmq-env.conf - fi - ;; - - abort-upgrade|abort-remove|abort-deconfigure) - ;; - - *) - echo "postinst called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/postrm.in b/packaging/debs/Debian/debian/postrm.in deleted file mode 100644 index c4aeeebe..00000000 --- a/packaging/debs/Debian/debian/postrm.in +++ /dev/null @@ -1,73 +0,0 @@ -#!/bin/sh -# postrm script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `remove' -# * `purge' -# * `upgrade' -# * `failed-upgrade' -# * `abort-install' -# * `abort-install' -# * `abort-upgrade' -# * `disappear' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - -remove_plugin_traces() { - # Remove traces of plugins - rm -rf /var/lib/rabbitmq/plugins-scratch -} - -case "$1" in - purge) - rm -f /etc/default/rabbitmq - if [ -d /var/lib/rabbitmq ]; then - rm -r /var/lib/rabbitmq - fi - if [ -d /var/log/rabbitmq ]; then - rm -r /var/log/rabbitmq - fi - if [ -d /var/run/rabbitmq ]; then - rm -r /var/run/rabbitmq - fi - if [ -d /etc/rabbitmq ]; then - rm -r /etc/rabbitmq - fi - remove_plugin_traces - if getent passwd rabbitmq >/dev/null; then - # Stop epmd if run by the rabbitmq user - pkill -u rabbitmq epmd || : - - deluser rabbitmq - fi - if getent group rabbitmq >/dev/null; then - delgroup rabbitmq - fi - ;; - - remove|upgrade) - remove_plugin_traces - ;; - - failed-upgrade|abort-install|abort-upgrade|disappear) - ;; - - *) - echo "postrm called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/rabbitmq-server.logrotate b/packaging/debs/Debian/debian/rabbitmq-server.logrotate deleted file mode 100644 index c786df77..00000000 --- a/packaging/debs/Debian/debian/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /etc/init.d/rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/debs/Debian/debian/rules b/packaging/debs/Debian/debian/rules deleted file mode 100644 index a785b292..00000000 --- a/packaging/debs/Debian/debian/rules +++ /dev/null @@ -1,21 +0,0 @@ -#!/usr/bin/make -f - -include /usr/share/cdbs/1/rules/debhelper.mk -include /usr/share/cdbs/1/class/makefile.mk - -RABBIT_LIB=$(DEB_DESTDIR)usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)/ -RABBIT_BIN=$(DEB_DESTDIR)usr/lib/rabbitmq/bin/ - -DEB_MAKE_INSTALL_TARGET := install TARGET_DIR=$(RABBIT_LIB) SBIN_DIR=$(RABBIT_BIN) MAN_DIR=$(DEB_DESTDIR)usr/share/man/ -DEB_MAKE_CLEAN_TARGET:= distclean - -DOCDIR=$(DEB_DESTDIR)usr/share/doc/rabbitmq-server/ - -install/rabbitmq-server:: - mkdir -p $(DOCDIR) - rm $(RABBIT_LIB)LICENSE* $(RABBIT_LIB)INSTALL* - for script in rabbitmqctl rabbitmq-server; do \ - install -p -D -m 0755 debian/rabbitmq-script-wrapper $(DEB_DESTDIR)usr/sbin/$$script; \ - done - sed -e 's|@RABBIT_LIB@|/usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)|g' debian/postrm - install -p -D -m 0755 debian/rabbitmq-server.ocf $(DEB_DESTDIR)usr/lib/ocf/resource.d/rabbitmq/rabbitmq-server diff --git a/packaging/debs/Debian/debian/watch b/packaging/debs/Debian/debian/watch deleted file mode 100644 index b41aff9a..00000000 --- a/packaging/debs/Debian/debian/watch +++ /dev/null @@ -1,4 +0,0 @@ -version=3 - -http://www.rabbitmq.com/releases/rabbitmq-server/v(.*)/rabbitmq-server-(\d.*)\.tar\.gz \ - debian uupdate diff --git a/packaging/debs/apt-repository/Makefile b/packaging/debs/apt-repository/Makefile deleted file mode 100644 index ce4347bc..00000000 --- a/packaging/debs/apt-repository/Makefile +++ /dev/null @@ -1,28 +0,0 @@ -SIGNING_USER_EMAIL=info@rabbitmq.com - -ifeq "$(UNOFFICIAL_RELEASE)" "" -HOME_ARG=HOME=$(GNUPG_PATH) -endif - -all: debian_apt_repository - -clean: - rm -rf debian - -CAN_HAS_REPREPRO=$(shell [ -f /usr/bin/reprepro ] && echo true) -ifeq ($(CAN_HAS_REPREPRO), true) -debian_apt_repository: clean - mkdir -p debian/conf - cp -a distributions debian/conf -ifeq "$(UNOFFICIAL_RELEASE)" "" - echo SignWith: $(SIGNING_USER_EMAIL) >> debian/conf/distributions -endif - for FILE in ../Debian/*.changes ; do \ - $(HOME_ARG) reprepro --ignore=wrongdistribution \ - -Vb debian include kitten $${FILE} ; \ - done - reprepro -Vb debian createsymlinks -else -debian_apt_repository: - @echo Not building APT repository as reprepro could not be found -endif diff --git a/packaging/debs/apt-repository/README b/packaging/debs/apt-repository/README deleted file mode 100644 index 514a37f3..00000000 --- a/packaging/debs/apt-repository/README +++ /dev/null @@ -1,17 +0,0 @@ -APT repository for RabbitMQ - -Previously we've attempted to run a repository in the same way that -Debian would: have repository management software installed on the -server, and upload new packages to the repository as and when they're -ready. - -This turned out to be both fiddly and annoying to do (and more -particularly to automate) so since our repository is always going to be -small it's easier just to create the entire repository as part of the -build process, just like a package. It can then be moved into place as a -single unit. The make target "debian_apt_repository" (invoked by "dist") -will create it, and it can get moved onto the server with the rest of -the packages. - -Read "README-real-repository" for information on how we used to do -this. diff --git a/packaging/debs/apt-repository/README-real-repository b/packaging/debs/apt-repository/README-real-repository deleted file mode 100644 index b1526227..00000000 --- a/packaging/debs/apt-repository/README-real-repository +++ /dev/null @@ -1,130 +0,0 @@ -APT Repository for RabbitMQ in Debian -===================================== - -First, a note on what we're trying to do. We want a single "testing" -repository. When RabbitMQ is more stable we will also want a -"stable" repository. It is very important to understand that these refer -to the state of the rabbit code, *NOT* which Debian distribution they go -with. At the moment our dependencies are very simple so our packages can -be used with any current Debian version (etch, lenny, sid) as well as -with Ubuntu. So although we have a "testing" distribution, this is not -codenamed "lenny". Instead it's currently codenamed "kitten" since -that's a baby rabbit. - -Secondly, a note on software. We need a tool to manage the repository, -and a tool to perform uploads to the repository. Debian being Debian -there are quite a few of each. We will use "rerepro" to manage the -repository since it's modern, maintained, and fairly simple. We will use -"dupload" to perform the uploads since it gives us the ability to run -arbitrary commands after the upload, which means we don't need to run a -cron job on the web server to process uploads. - -Creating a repository -===================== - -Much of this was cribbed from: -http://www.debian-administration.org/articles/286 - -The repository is fundamentally just some files in a folder, served over -HTTP (or FTP etc). So let's make it "debian" in the root of -www.rabbitmq.com. - -This means the repository will be at http://www.rabbitmq.com/debian/ and -can be added to a sources.list as: - -deb http://www.rabbitmq.com/debian/ testing main -deb-src http://www.rabbitmq.com/debian/ testing main - -Inside this folder we need a "conf" folder, and in -that we need a "distributions" configuration file - see the file in this -folder. Note that: - -* We list all architectures so that people can install rabbitmq-server - on to anything. -* We don't list the "all" architecture even though we use it; it's - implied. -* We only have a "main" component, we could have non-free and contrib - here if it was relevant. -* We list the email address associated with the key we want to use to - sign the repository. Yes, even after signing packages we still want to - sign the repository. - -We're now ready to go. Assuming the path to our repository is /path, -(and hence configuration is in /path/conf) we can upload a file to the -repository (creating it in the process) by doing something like this on -the repository host: - -$ reprepro --ignore=wrongdistribution -Vb /path include kitten \ - rabbitmq-server_1.0.0-alpha-1_i386.changes - -Note that we upload to the distribution "kitten" rather than "testing". -We also pass --ignore=wrongdistribution since the current packages are -built to go in "unstable" (this will be changed obviously). - -Note also that the .changes file claims to be for i386 even though the -package is for architecture "all". This is a bug in debhelper. - -Finally, if you've just created a repository, you want to run: - -$ reprepro -Vb /path createsymlinks - -since this will create "kitten" -> "testing" symlinks. You only need to -do this once. - -Removing packages -================= - -Fairly simple: - -$ reprepro --ignore=wrongdistribution -Vb /path remove kitten \ - rabbitmq-server - -Subsequent updates and "dupload" -================================ - -You can run the "reprepro" command above again to update the versions of -software in the repository. Since we probably don't want to have to log -into the machine in question to do this, we can use "dupload". This is a -tool which uploads Debian packages. The supplied file "dupload.conf" can -be renamed to ~/.dupload.conf. If you then run: - -$ dupload -to rabbit --nomail . - -in the folder with the .changes file, dupload will: - -* create an incoming folder in your home directory on the repository -machine -* upload everything there -* run reprepro to move the packages into the repository -* "rm -rf" the uploads folder - -This is a bit cheesy but should be enough for our purposes. The -dupload.conf uses scp and ssh so you need a public-key login (or tpye -your password lots). - -There's still an open question as to whether dupload is really needed -for our case. - -Keys and signing -================ - -We currently sign the package as we build it; but we also need to sign -the repository. The key is currently on my machine (mrforgetful) and has -ID 056E8E56. We should put it on CDs though. - -reprepro will automatically sign the repository if we have the right -SignWith line in the configuration, AND the secret key is installed on -the repository server. This is obviously not ideal; not sure what the -solution is right now. - -You can export the public key with: - -$ gpg --export --armor 056E8E56 > rabbit.pub - -(Open question: do we want to get our key on subkeys.pgp.net?) - -We can then add this key to the website and tell our users to import the -key into apt with: - -# apt-key add rabbit.pub - diff --git a/packaging/debs/apt-repository/distributions b/packaging/debs/apt-repository/distributions deleted file mode 100644 index 183eb034..00000000 --- a/packaging/debs/apt-repository/distributions +++ /dev/null @@ -1,7 +0,0 @@ -Origin: RabbitMQ -Label: RabbitMQ Repository for Debian / Ubuntu etc -Suite: testing -Codename: kitten -Architectures: arm hppa ia64 mips mipsel s390 sparc i386 amd64 powerpc source -Components: main -Description: RabbitMQ Repository for Debian / Ubuntu etc diff --git a/packaging/debs/apt-repository/dupload.conf b/packaging/debs/apt-repository/dupload.conf deleted file mode 100644 index 9ceed760..00000000 --- a/packaging/debs/apt-repository/dupload.conf +++ /dev/null @@ -1,16 +0,0 @@ -package config; - -$rabbit_user = "simon"; -$rabbit_host = "mrforgetful.lshift.net"; -$rabbit_repo_path = "/srv/debian"; -$rabbit_reprepro_extra_args = "--ignore=wrongdistribution"; - -$cfg{'rabbit'} = { - fqdn => "$rabbit_host", - login => "$rabbit_user", - method => "scp", - incoming => "incoming", -}; - -$preupload{'deb'} = "ssh ${rabbit_host} mkdir incoming"; -$postupload{'deb'} = "ssh ${rabbit_host} \"cd incoming && reprepro ${$rabbit_reprepro_extra_args} -Vb ${rabbit_repo_path} include kitten *.changes && cd .. && rm -r incoming\""; diff --git a/packaging/generic-unix/Makefile b/packaging/generic-unix/Makefile deleted file mode 100644 index b5c342aa..00000000 --- a/packaging/generic-unix/Makefile +++ /dev/null @@ -1,23 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_TARBALL=rabbitmq-server-generic-unix-$(VERSION) - -dist: - tar -zxf ../../dist/$(SOURCE_DIR).tar.gz - - $(MAKE) -C $(SOURCE_DIR) \ - TARGET_DIR=`pwd`/$(TARGET_DIR) \ - SBIN_DIR=`pwd`/$(TARGET_DIR)/sbin \ - MAN_DIR=`pwd`/$(TARGET_DIR)/share/man \ - install - - tar -zcf $(TARGET_TARBALL).tar.gz $(TARGET_DIR) - rm -rf $(SOURCE_DIR) $(TARGET_DIR) - -clean: clean_partial - rm -f rabbitmq-server-generic-unix-*.tar.gz - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile deleted file mode 100644 index 47da02dc..00000000 --- a/packaging/macports/Makefile +++ /dev/null @@ -1,59 +0,0 @@ -TARBALL_SRC_DIR=../../dist -TARBALL_BIN_DIR=../../packaging/generic-unix/ -TARBALL_SRC=$(wildcard $(TARBALL_SRC_DIR)/rabbitmq-server-[0-9.]*.tar.gz) -TARBALL_BIN=$(wildcard $(TARBALL_BIN_DIR)/rabbitmq-server-generic-unix-[0-9.]*.tar.gz) -COMMON_DIR=../common -VERSION=$(shell echo $(TARBALL_SRC) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -# The URL at which things really get deployed -REAL_WEB_URL=http://www.rabbitmq.com/ - -# The user@host for an OSX machine with macports installed, which is -# used to generate the macports index files. That step will be -# skipped if this variable is not set. If you do set it, you might -# also want to set SSH_OPTS, which allows adding ssh options, e.g. to -# specify a key that will get into the OSX machine without a -# passphrase. -MACPORTS_USERHOST= - -MACPORTS_DIR=macports -DEST=$(MACPORTS_DIR)/net/rabbitmq-server - -all: macports - -dirs: - mkdir -p $(DEST)/files - -$(DEST)/Portfile: Portfile.in - ./make-checksums.sh $(TARBALL_SRC) $(TARBALL_BIN) > checksums.sed - sed -e "s|@VERSION@|$(VERSION)|g;s|@BASE_URL@|$(REAL_WEB_URL)|g" \ - -f checksums.sed <$^ >$@ - rm checksums.sed - -# The purpose of the intricate substitution below is to set up similar -# environment vars to the ones that su will on Linux. On OS X, we -# have to use the -m option to su in order to be able to set the shell -# (which for the rabbitmq user would otherwise be /dev/null). But the -# -m option means that *all* environment vars get preserved. Erlang -# needs vars such as HOME to be set. So we have to set them -# explicitly. -macports: dirs $(DEST)/Portfile - cp $(COMMON_DIR)/rabbitmq-script-wrapper $(DEST)/files - sed -i -e 's|@SU_RABBITMQ_SH_C@|SHELL=/bin/sh HOME=/var/lib/rabbitmq USER=rabbitmq LOGNAME=rabbitmq PATH="$$(eval `PATH=MACPORTS_PREFIX/bin /usr/libexec/path_helper -s`; echo $$PATH)" su -m rabbitmq -c|' \ - $(DEST)/files/rabbitmq-script-wrapper - cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files - if [ -n "$(MACPORTS_USERHOST)" ] ; then \ - tar cf - -C $(MACPORTS_DIR) . | ssh $(SSH_OPTS) $(MACPORTS_USERHOST) ' \ - d="/tmp/mkportindex.$$$$" ; \ - mkdir $$d \ - && cd $$d \ - && tar xf - \ - && /opt/local/bin/portindex -a -o . >/dev/null \ - && tar cf - . \ - && cd \ - && rm -rf $$d' \ - | tar xf - -C $(MACPORTS_DIR) ; \ - fi - -clean: - rm -rf $(MACPORTS_DIR) checksums.sed diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in deleted file mode 100644 index 4a866305..00000000 --- a/packaging/macports/Portfile.in +++ /dev/null @@ -1,116 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version @VERSION@ -categories net -maintainers paperplanes.de:meyer openmaintainer -platforms darwin -supported_archs noarch - -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage @BASE_URL@ -master_sites @BASE_URL@releases/rabbitmq-server/v${version}/ - -distfiles ${name}-${version}${extract.suffix} \ - ${name}-generic-unix-${version}${extract.suffix} - -checksums \ - ${name}-${version}${extract.suffix} \ - sha1 @sha1-src@ \ - rmd160 @rmd160-src@ \ - ${name}-generic-unix-${version}${extract.suffix} \ - sha1 @sha1-bin@ \ - rmd160 @rmd160-bin@ - -depends_lib port:erlang -depends_build port:libxslt - -platform darwin 8 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -platform darwin 9 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -# no need for simplejson on Snow Leopard or higher - - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin -set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin -set mansrc ${workpath}/rabbitmq_server-${version}/share/man -set mandest ${destroot}${prefix}/share/man - -use_configure no - -use_parallel_build yes - -destroot.target install_bin - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq):${prefix}\\1:g" \ - ${realsbin}/rabbitmq-env - foreach var {CONFIG_FILE LOG_BASE MNESIA_BASE} { - reinplace -E "s:^($var)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - } - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-server - - reinplace -E "s:MACPORTS_PREFIX/bin:${prefix}/bin:" \ - ${wrappersbin}/rabbitmq-server - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-server - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-server ${wrappersbin}/rabbitmqctl - - xinstall -m 644 -W ${mansrc}/man1 rabbitmq-server.1.gz rabbitmqctl.1.gz \ - ${mandest}/man1/ - xinstall -m 644 -W ${mansrc}/man5 rabbitmq-env.conf.5.gz ${mandest}/man5/ -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/make-checksums.sh b/packaging/macports/make-checksums.sh deleted file mode 100755 index 891de6ba..00000000 --- a/packaging/macports/make-checksums.sh +++ /dev/null @@ -1,14 +0,0 @@ -#!/bin/bash -# NB: this script requires bash -tarball_src=$1 -tarball_bin=$2 -for type in src bin -do - tarball_var=tarball_${type} - tarball=${!tarball_var} - for algo in sha1 rmd160 - do - checksum=$(openssl $algo ${tarball} | awk '{print $NF}') - echo "s|@$algo-$type@|$checksum|g" - done -done diff --git a/packaging/macports/make-port-diff.sh b/packaging/macports/make-port-diff.sh deleted file mode 100755 index 3eb1b9f5..00000000 --- a/packaging/macports/make-port-diff.sh +++ /dev/null @@ -1,27 +0,0 @@ -#!/bin/bash - -# This script grabs the latest rabbitmq-server bits from the main -# macports subversion repo, and from the rabbitmq.com macports repo, -# and produces a diff from the former to the latter for submission -# through the macports trac. - -set -e - -dir=/tmp/$(basename $0).$$ -mkdir -p $dir/macports $dir/rabbitmq - -# Get the files from the macports subversion repo -cd $dir/macports -svn checkout http://svn.macports.org/repository/macports/trunk/dports/net/rabbitmq-server/ 2>&1 >/dev/null - -# Clear out the svn $id tag -sed -i -e 's|^# \$.*$|# $Id$|' rabbitmq-server/Portfile - -# Get the files from the rabbitmq.com macports repo -cd ../rabbitmq -curl -s http://www.rabbitmq.com/releases/macports/net/rabbitmq-server.tgz | tar xzf - - -cd .. -diff -Naur --exclude=.svn macports rabbitmq -cd / -rm -rf $dir diff --git a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff deleted file mode 100644 index 45b49496..00000000 --- a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff +++ /dev/null @@ -1,10 +0,0 @@ ---- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 -+++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 -@@ -22,6 +22,7 @@ - ; - --pid=none - -+UserNamerabbitmq - Debug - Disabled - OnDemand diff --git a/packaging/windows-exe/Makefile b/packaging/windows-exe/Makefile deleted file mode 100644 index ab50e30b..00000000 --- a/packaging/windows-exe/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -VERSION=0.0.0 -ZIP=../windows/rabbitmq-server-windows-$(VERSION) - -dist: rabbitmq-$(VERSION).nsi rabbitmq_server-$(VERSION) - makensis -V2 rabbitmq-$(VERSION).nsi - -rabbitmq-$(VERSION).nsi: rabbitmq_nsi.in - sed \ - -e 's|%%VERSION%%|$(VERSION)|' \ - $< > $@ - -rabbitmq_server-$(VERSION): - unzip -q $(ZIP) - -clean: - rm -rf rabbitmq-*.nsi rabbitmq_server-* rabbitmq-server-*.exe diff --git a/packaging/windows-exe/rabbitmq.ico b/packaging/windows-exe/rabbitmq.ico deleted file mode 100644 index 5e169a79..00000000 Binary files a/packaging/windows-exe/rabbitmq.ico and /dev/null differ diff --git a/packaging/windows-exe/rabbitmq_nsi.in b/packaging/windows-exe/rabbitmq_nsi.in deleted file mode 100644 index 27e4e1dc..00000000 --- a/packaging/windows-exe/rabbitmq_nsi.in +++ /dev/null @@ -1,237 +0,0 @@ -; Use the "Modern" UI -!include MUI2.nsh -!include LogicLib.nsh -!include WinMessages.nsh -!include FileFunc.nsh -!include WordFunc.nsh - -!define env_hklm 'HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"' -!define uninstall "Software\Microsoft\Windows\CurrentVersion\Uninstall\RabbitMQ" - -;-------------------------------- - -; The name of the installer -Name "RabbitMQ Server %%VERSION%%" - -; The file to write -OutFile "rabbitmq-server-%%VERSION%%.exe" - -; Icons -!define MUI_ICON "rabbitmq.ico" - -; The default installation directory -InstallDir "$PROGRAMFILES\RabbitMQ Server" - -; Registry key to check for directory (so if you install again, it will -; overwrite the old one automatically) -InstallDirRegKey HKLM "Software\VMware, Inc.\RabbitMQ Server" "Install_Dir" - -; Request application privileges for Windows Vista -RequestExecutionLevel admin - -SetCompressor /solid lzma - -VIProductVersion "%%VERSION%%.0" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductVersion" "%%VERSION%%" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductName" "RabbitMQ Server" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "Comments" "" -VIAddVersionKey /LANG=${LANG_ENGLISH} "CompanyName" "VMware, Inc" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalTrademarks" "" ; TODO ? -VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalCopyright" "Copyright (c) 2007-2011 VMware, Inc. All rights reserved." -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileDescription" "RabbitMQ Server" -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileVersion" "%%VERSION%%" - -;-------------------------------- - -; Pages - - -; !insertmacro MUI_PAGE_LICENSE "..\..\LICENSE-MPL-RabbitMQ" - !insertmacro MUI_PAGE_COMPONENTS - !insertmacro MUI_PAGE_DIRECTORY - !insertmacro MUI_PAGE_INSTFILES - !insertmacro MUI_PAGE_FINISH - - !insertmacro MUI_UNPAGE_CONFIRM - !insertmacro MUI_UNPAGE_INSTFILES - !define MUI_FINISHPAGE_TEXT "RabbitMQ Server %%VERSION%% has been uninstalled from your computer.$\n$\nPlease note that the log and database directories located at $APPDATA\RabbitMQ have not been removed. You can remove them manually if desired." - !insertmacro MUI_UNPAGE_FINISH - -;-------------------------------- -;Languages - - !insertmacro MUI_LANGUAGE "English" - -;-------------------------------- - -; The stuff to install -Section "RabbitMQ Server (required)" Rabbit - - SectionIn RO - - ; Set output path to the installation directory. - SetOutPath $INSTDIR - - ; Put files there - File /r "rabbitmq_server-%%VERSION%%" - File "rabbitmq.ico" - - ; Write the installation path into the registry - WriteRegStr HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" "Install_Dir" "$INSTDIR" - - ; Write the uninstall keys for Windows - WriteRegStr HKLM ${uninstall} "DisplayName" "RabbitMQ Server" - WriteRegStr HKLM ${uninstall} "UninstallString" "$INSTDIR\uninstall.exe" - WriteRegStr HKLM ${uninstall} "DisplayIcon" "$INSTDIR\uninstall.exe,0" - WriteRegStr HKLM ${uninstall} "Publisher" "VMware, Inc." - WriteRegStr HKLM ${uninstall} "DisplayVersion" "%%VERSION%%" - WriteRegDWORD HKLM ${uninstall} "NoModify" 1 - WriteRegDWORD HKLM ${uninstall} "NoRepair" 1 - - ${GetSize} "$INSTDIR" "/S=0K" $0 $1 $2 - IntFmt $0 "0x%08X" $0 - WriteRegDWORD HKLM "${uninstall}" "EstimatedSize" "$0" - - WriteUninstaller "uninstall.exe" -SectionEnd - -;-------------------------------- - -Section "RabbitMQ Service" RabbitService - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" install' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" start' - CopyFiles "$WINDIR\.erlang.cookie" "$PROFILE\.erlang.cookie" -SectionEnd - -;-------------------------------- - -Section "Start Menu" RabbitStartMenu - ; In case the service is not installed, or the service installation fails, - ; make sure these exist or Explorer will get confused. - CreateDirectory "$APPDATA\RabbitMQ\log" - CreateDirectory "$APPDATA\RabbitMQ\db" - - CreateDirectory "$SMPROGRAMS\RabbitMQ Server" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Uninstall RabbitMQ.lnk" "$INSTDIR\uninstall.exe" "" "$INSTDIR\uninstall.exe" 0 - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Plugins.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\plugins" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Logs.lnk" "$APPDATA\RabbitMQ\log" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Database Directory.lnk" "$APPDATA\RabbitMQ\db" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Service - (re)install.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "install" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Service - remove.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "remove" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Service - start.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "start" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Service - stop.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "stop" "$INSTDIR\rabbitmq.ico" - - SetOutPath "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Command Prompt (sbin dir).lnk" "$WINDIR\system32\cmd.exe" "" "$WINDIR\system32\cmd.exe" - SetOutPath $INSTDIR -SectionEnd - -;-------------------------------- - -; Section descriptions - -LangString DESC_Rabbit ${LANG_ENGLISH} "The RabbitMQ Server." -LangString DESC_RabbitService ${LANG_ENGLISH} "Set up RabbitMQ as a Windows Service." -LangString DESC_RabbitStartMenu ${LANG_ENGLISH} "Add some useful links to the start menu." - -!insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN - !insertmacro MUI_DESCRIPTION_TEXT ${Rabbit} $(DESC_Rabbit) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitService} $(DESC_RabbitService) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitStartMenu} $(DESC_RabbitStartMenu) -!insertmacro MUI_FUNCTION_DESCRIPTION_END - -;-------------------------------- - -; Uninstaller - -Section "Uninstall" - - ; Remove registry keys - DeleteRegKey HKLM ${uninstall} - DeleteRegKey HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" - - ; TODO these will fail if the service is not installed - do we care? - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" stop' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" remove' - - ; Remove files and uninstaller - RMDir /r "$INSTDIR\rabbitmq_server-%%VERSION%%" - Delete "$INSTDIR\rabbitmq.ico" - Delete "$INSTDIR\uninstall.exe" - - ; Remove start menu items - RMDir /r "$SMPROGRAMS\RabbitMQ Server" - - DeleteRegValue ${env_hklm} ERLANG_HOME - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - -SectionEnd - -;-------------------------------- - -; Functions - -Function .onInit - Call findErlang - - ReadRegStr $0 HKLM ${uninstall} "UninstallString" - ${If} $0 != "" - MessageBox MB_OKCANCEL|MB_ICONEXCLAMATION "RabbitMQ is already installed. $\n$\nClick 'OK' to remove the previous version or 'Cancel' to cancel this installation." IDCANCEL norun - - ;Run the uninstaller - ClearErrors - ExecWait $INSTDIR\uninstall.exe - - norun: - Abort - ${EndIf} -FunctionEnd - -Function findErlang - - StrCpy $0 0 - StrCpy $2 "not-found" - ${Do} - EnumRegKey $1 HKLM Software\Ericsson\Erlang $0 - ${If} $1 = "" - ${Break} - ${EndIf} - ${If} $1 <> "ErlSrv" - StrCpy $2 $1 - ${EndIf} - - IntOp $0 $0 + 1 - ${Loop} - - ${If} $2 = "not-found" - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Erlang could not be detected.$\nYou must install Erlang before installing RabbitMQ. Would you like the installer to open a browser window to the Erlang download site?" IDNO abort - ExecShell "open" "http://www.erlang.org/download.html" - abort: - Abort - ${Else} - ${VersionCompare} $2 "5.6.3" $0 - ${VersionCompare} $2 "5.8.1" $1 - - ${If} $0 = 2 - MessageBox MB_OK|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is too old. Please install a more recent version." - Abort - ${ElseIf} $1 = 2 - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is comparatively old.$\nFor best results, please install a newer version.$\nDo you wish to continue?" IDYES no_abort - Abort - no_abort: - ${EndIf} - - ReadRegStr $0 HKLM "Software\Ericsson\Erlang\$2" "" - - ; See http://nsis.sourceforge.net/Setting_Environment_Variables - WriteRegExpandStr ${env_hklm} ERLANG_HOME $0 - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - - ; On Windows XP changing the permanent environment does not change *our* - ; environment, so do that as well. - System::Call 'Kernel32::SetEnvironmentVariableA(t, t) i("ERLANG_HOME", "$0").r0' - ${EndIf} - -FunctionEnd \ No newline at end of file diff --git a/packaging/windows/Makefile b/packaging/windows/Makefile deleted file mode 100644 index a0be8d89..00000000 --- a/packaging/windows/Makefile +++ /dev/null @@ -1,35 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_ZIP=rabbitmq-server-windows-$(VERSION) - -dist: - tar -zxf ../../dist/$(SOURCE_DIR).tar.gz - $(MAKE) -C $(SOURCE_DIR) - - mkdir $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-server.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-service.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmqctl.bat $(SOURCE_DIR)/sbin - rm -rf $(SOURCE_DIR)/scripts - rm -rf $(SOURCE_DIR)/codegen* $(SOURCE_DIR)/Makefile - rm -f $(SOURCE_DIR)/README - rm -rf $(SOURCE_DIR)/docs - - mv $(SOURCE_DIR) $(TARGET_DIR) - mkdir -p $(TARGET_DIR) - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory > $(TARGET_DIR)/plugins/README - xmlto -o . xhtml-nochunks ../../docs/rabbitmq-service.xml - elinks -dump -no-references -no-numbering rabbitmq-service.html \ - > $(TARGET_DIR)/readme-service.txt - todos $(TARGET_DIR)/readme-service.txt - zip -q -r $(TARGET_ZIP).zip $(TARGET_DIR) - rm -rf $(TARGET_DIR) rabbitmq-service.html - -clean: clean_partial - rm -f rabbitmq-server-windows-*.zip - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/quickcheck b/quickcheck deleted file mode 100755 index a36cf3ed..00000000 --- a/quickcheck +++ /dev/null @@ -1,36 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- -%%! -sname quickcheck --mode(compile). - -%% A helper to test quickcheck properties on a running broker -%% NodeStr is a local broker node name -%% ModStr is the module containing quickcheck properties -%% The number of trials is optional -main([NodeStr, ModStr | TrialsStr]) -> - {ok, Hostname} = inet:gethostname(), - Node = list_to_atom(NodeStr ++ "@" ++ Hostname), - Mod = list_to_atom(ModStr), - Trials = lists:map(fun erlang:list_to_integer/1, TrialsStr), - case rpc:call(Node, code, ensure_loaded, [proper]) of - {module, proper} -> - case rpc:call(Node, proper, module, [Mod] ++ Trials) of - [] -> ok; - _ -> quit(1) - end; - {badrpc, Reason} -> - io:format("Could not contact node ~p: ~p.~n", [Node, Reason]), - quit(2); - {error,nofile} -> - io:format("Module PropEr was not found on node ~p~n", [Node]), - quit(2) - end; -main([]) -> - io:format("This script requires a node name and a module.~n"). - -quit(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status) - end. - diff --git a/scripts/rabbitmq-env b/scripts/rabbitmq-env deleted file mode 100755 index a2ef8d3c..00000000 --- a/scripts/rabbitmq-env +++ /dev/null @@ -1,45 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Determine where this script is really located -SCRIPT_PATH="$0" -while [ -h "$SCRIPT_PATH" ] ; do - FULL_PATH=`readlink -f $SCRIPT_PATH 2>/dev/null` - if [ "$?" != "0" ]; then - REL_PATH=`readlink $SCRIPT_PATH` - if expr "$REL_PATH" : '/.*' > /dev/null; then - SCRIPT_PATH="$REL_PATH" - else - SCRIPT_PATH="`dirname "$SCRIPT_PATH"`/$REL_PATH" - fi - else - SCRIPT_PATH=$FULL_PATH - fi -done - -SCRIPT_DIR=`dirname $SCRIPT_PATH` -RABBITMQ_HOME="${SCRIPT_DIR}/.." -[ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname` -NODENAME=rabbit@${HOSTNAME%%.*} - -# Load configuration from the rabbitmq.conf file -if [ -f /etc/rabbitmq/rabbitmq.conf ] && \ - [ ! -f /etc/rabbitmq/rabbitmq-env.conf ] ; then - echo -n "WARNING: ignoring /etc/rabbitmq/rabbitmq.conf -- " - echo "location has moved to /etc/rabbitmq/rabbitmq-env.conf" -fi -[ -f /etc/rabbitmq/rabbitmq-env.conf ] && . /etc/rabbitmq/rabbitmq-env.conf diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server deleted file mode 100755 index 2f80eb96..00000000 --- a/scripts/rabbitmq-server +++ /dev/null @@ -1,117 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -SERVER_ERL_ARGS="+K true +A30 +P 1048576 \ --kernel inet_default_connect_options [{nodelay,true}]" -CONFIG_FILE=/etc/rabbitmq/rabbitmq -LOG_BASE=/var/log/rabbitmq -MNESIA_BASE=/var/lib/rabbitmq/mnesia -SERVER_START_ARGS= - -. `dirname $0`/rabbitmq-env - -DEFAULT_NODE_IP_ADDRESS=auto -DEFAULT_NODE_PORT=5672 -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} -[ "x" = "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} -if [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] -then - if [ "x" != "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_IP_ADDRESS=${DEFAULT_NODE_IP_ADDRESS} - fi -else - if [ "x" = "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_PORT=${DEFAULT_NODE_PORT} - fi -fi -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_SERVER_ERL_ARGS" ] && RABBITMQ_SERVER_ERL_ARGS=${SERVER_ERL_ARGS} -[ "x" = "x$RABBITMQ_CONFIG_FILE" ] && RABBITMQ_CONFIG_FILE=${CONFIG_FILE} -[ "x" = "x$RABBITMQ_LOG_BASE" ] && RABBITMQ_LOG_BASE=${LOG_BASE} -[ "x" = "x$RABBITMQ_MNESIA_BASE" ] && RABBITMQ_MNESIA_BASE=${MNESIA_BASE} -[ "x" = "x$RABBITMQ_SERVER_START_ARGS" ] && RABBITMQ_SERVER_START_ARGS=${SERVER_START_ARGS} - -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${MNESIA_DIR} -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME} - -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${PLUGINS_EXPAND_DIR} -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME}-plugins-expand - -[ "x" = "x$RABBITMQ_PLUGINS_DIR" ] && RABBITMQ_PLUGINS_DIR="${RABBITMQ_HOME}/plugins" - -## Log rotation -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS=${LOGS} -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}.log" -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS=${SASL_LOGS} -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}-sasl.log" -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=${BACKUP_EXTENSION} -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=".1" - -[ -f "${RABBITMQ_LOGS}" ] && cat "${RABBITMQ_LOGS}" >> "${RABBITMQ_LOGS}${RABBITMQ_BACKUP_EXTENSION}" -[ -f "${RABBITMQ_SASL_LOGS}" ] && cat "${RABBITMQ_SASL_LOGS}" >> "${RABBITMQ_SASL_LOGS}${RABBITMQ_BACKUP_EXTENSION}" - -RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' - -RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" -if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then - if erl \ - -pa "$RABBITMQ_EBIN_ROOT" \ - -noinput \ - -hidden \ - -s rabbit_prelaunch \ - -sname rabbitmqprelaunch$$ \ - -extra "$RABBITMQ_PLUGINS_DIR" "${RABBITMQ_PLUGINS_EXPAND_DIR}" "${RABBITMQ_NODENAME}" - then - RABBITMQ_BOOT_FILE="${RABBITMQ_PLUGINS_EXPAND_DIR}/rabbit" - RABBITMQ_EBIN_PATH="" - else - exit 1 - fi -else - RABBITMQ_BOOT_FILE=start_sasl - RABBITMQ_EBIN_PATH="-pa ${RABBITMQ_EBIN_ROOT}" -fi -RABBITMQ_CONFIG_ARG= -[ -f "${RABBITMQ_CONFIG_FILE}.config" ] && RABBITMQ_CONFIG_ARG="-config ${RABBITMQ_CONFIG_FILE}" - -RABBITMQ_LISTEN_ARG= -[ "x" != "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$RABBITMQ_NODE_IP_ADDRESS" ] && RABBITMQ_LISTEN_ARG="-rabbit tcp_listeners [{\""${RABBITMQ_NODE_IP_ADDRESS}"\","${RABBITMQ_NODE_PORT}"}]" - -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_SERVER_ERL_ARGS, contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - -exec erl \ - ${RABBITMQ_EBIN_PATH} \ - ${RABBITMQ_START_RABBIT} \ - -sname ${RABBITMQ_NODENAME} \ - -boot ${RABBITMQ_BOOT_FILE} \ - ${RABBITMQ_CONFIG_ARG} \ - +W w \ - ${RABBITMQ_SERVER_ERL_ARGS} \ - ${RABBITMQ_LISTEN_ARG} \ - -sasl errlog_type error \ - -kernel error_logger '{file,"'${RABBITMQ_LOGS}'"}' \ - -sasl sasl_error_logger '{file,"'${RABBITMQ_SASL_LOGS}'"}' \ - -os_mon start_cpu_sup true \ - -os_mon start_disksup false \ - -os_mon start_memsup false \ - -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - ${RABBITMQ_SERVER_START_ARGS} \ - "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat deleted file mode 100644 index 5e2097db..00000000 --- a/scripts/rabbitmq-server.bat +++ /dev/null @@ -1,156 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\RabbitMQ -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based of size...) is left as an exercice for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!-sasl.log - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS!!BACKUP_EXTENSION!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS!!BACKUP_EXTENSION!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --sname rabbitmqprelaunch!RANDOM! ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "!RABBITMQ_NODENAME!" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners [{\""!RABBITMQ_NODE_IP_ADDRESS!"\","!RABBITMQ_NODE_PORT!"}] - ) -) - -"!ERLANG_HOME!\bin\erl.exe" ^ -!RABBITMQ_EBIN_PATH! ^ --noinput ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --sname !RABBITMQ_NODENAME! ^ --s rabbit ^ -+W w ^ -+A30 ^ -+P 1048576 ^ --kernel inet_default_connect_options "[{nodelay, true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!LOGS:\=/!"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!SASL_LOGS:\=/!"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -endlocal -endlocal diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat deleted file mode 100644 index b2aa4f58..00000000 --- a/scripts/rabbitmq-service.bat +++ /dev/null @@ -1,245 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TN0=%~n0 -set TDP0=%~dp0 -set P1=%1 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_SERVICENAME!"=="" ( - set RABBITMQ_SERVICENAME=RabbitMQ -) - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\!RABBITMQ_SERVICENAME! -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if "!ERLANG_SERVICE_MANAGER_PATH!"=="" ( - if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B - ) - for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\erlsrv.exe" ( - set ERLANG_SERVICE_MANAGER_PATH=!ERLANG_HOME!\%%i\bin - ) -) - -set CONSOLE_FLAG= -set CONSOLE_LOG_VALID= -for %%i in (new reuse) do if "%%i" == "!RABBITMQ_CONSOLE_LOG!" set CONSOLE_LOG_VALID=TRUE -if "!CONSOLE_LOG_VALID!" == "TRUE" ( - set CONSOLE_FLAG=-debugtype !RABBITMQ_CONSOLE_LOG! -) - -rem *** End of configuration *** - -if not exist "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" ( - echo. - echo ********************************************** - echo ERLANG_SERVICE_MANAGER_PATH not set correctly. - echo ********************************************** - echo. - echo "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" not found - echo Please set ERLANG_SERVICE_MANAGER_PATH to the folder containing "erlsrv.exe". - echo. - exit /B 1 -) - -rem erlang prefers forwardslash as separator in paths -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based on size...) is left as an exercise for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!-sasl.log - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS!!BACKUP_EXTENSION!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS!!BACKUP_EXTENSION!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -if "!P1!" == "install" goto INSTALL_SERVICE -for %%i in (start stop disable enable list remove) do if "%%i" == "!P1!" goto MODIFY_SERVICE - -echo. -echo ********************* -echo Service control usage -echo ********************* -echo. -echo !TN0! help - Display this help -echo !TN0! install - Install the !RABBITMQ_SERVICENAME! service -echo !TN0! remove - Remove the !RABBITMQ_SERVICENAME! service -echo. -echo The following actions can also be accomplished by using -echo Windows Services Management Console (services.msc): -echo. -echo !TN0! start - Start the !RABBITMQ_SERVICENAME! service -echo !TN0! stop - Stop the !RABBITMQ_SERVICENAME! service -echo !TN0! disable - Disable the !RABBITMQ_SERVICENAME! service -echo !TN0! enable - Enable the !RABBITMQ_SERVICENAME! service -echo. -exit /B - - -:INSTALL_SERVICE - -if not exist "!RABBITMQ_BASE!" ( - echo Creating base directory !RABBITMQ_BASE! & md "!RABBITMQ_BASE!" -) - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" list !RABBITMQ_SERVICENAME! 2>NUL 1>NUL -if errorlevel 1 ( - "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" add !RABBITMQ_SERVICENAME! -) else ( - echo !RABBITMQ_SERVICENAME! service is already present - only updating service parameters -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners "[{\"!RABBITMQ_NODE_IP_ADDRESS!\", !RABBITMQ_NODE_PORT!}]" - ) -) - -set ERLANG_SERVICE_ARGUMENTS= ^ -!RABBITMQ_EBIN_PATH! ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --s rabbit ^ -+W w ^ -+A30 ^ --kernel inet_default_connect_options "[{nodelay,true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!LOGS:\=/!"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!SASL_LOGS:\=/!"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:\=\\! -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:"=\"! - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" set !RABBITMQ_SERVICENAME! ^ --machine "!ERLANG_SERVICE_MANAGER_PATH!\erl.exe" ^ --env ERL_CRASH_DUMP="!RABBITMQ_BASE_UNIX!/erl_crash.dump" ^ --workdir "!RABBITMQ_BASE!" ^ --stopaction "rabbit:stop_and_halt()." ^ --sname !RABBITMQ_NODENAME! ^ -!CONSOLE_FLAG! ^ --comment "A robust and scalable messaging broker" ^ --args "!ERLANG_SERVICE_ARGUMENTS!" > NUL - -goto END - - -:MODIFY_SERVICE - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" !P1! !RABBITMQ_SERVICENAME! -goto END - - -:END - -endlocal -endlocal diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl deleted file mode 100755 index 9a11c3b3..00000000 --- a/scripts/rabbitmqctl +++ /dev/null @@ -1,31 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -. `dirname $0`/rabbitmq-env - -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} - -exec erl \ - -pa "${RABBITMQ_HOME}/ebin" \ - -noinput \ - -hidden \ - ${RABBITMQ_CTL_ERL_ARGS} \ - -sname rabbitmqctl$$ \ - -s rabbit_control \ - -nodename $RABBITMQ_NODENAME \ - -extra "$@" diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat deleted file mode 100644 index a74a91fd..00000000 --- a/scripts/rabbitmqctl.bat +++ /dev/null @@ -1,49 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! - -endlocal -endlocal diff --git a/src/bpqueue.erl b/src/bpqueue.erl deleted file mode 100644 index 71a34262..00000000 --- a/src/bpqueue.erl +++ /dev/null @@ -1,271 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(bpqueue). - -%% Block-prefixed queue. From the perspective of the queue interface -%% the datastructure acts like a regular queue where each value is -%% paired with the prefix. -%% -%% This is implemented as a queue of queues, which is more space and -%% time efficient, whilst supporting the normal queue interface. Each -%% inner queue has a prefix, which does not need to be unique, and it -%% is guaranteed that no two consecutive blocks have the same -%% prefix. len/1 returns the flattened length of the queue and is -%% O(1). - --export([new/0, is_empty/1, len/1, in/3, in_r/3, out/1, out_r/1, join/2, - foldl/3, foldr/3, from_list/1, to_list/1, map_fold_filter_l/4, - map_fold_filter_r/4]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([bpqueue/0]). - --type(bpqueue() :: {non_neg_integer(), queue()}). --type(prefix() :: any()). --type(value() :: any()). --type(result() :: ({'empty', bpqueue()} | - {{'value', prefix(), value()}, bpqueue()})). - --spec(new/0 :: () -> bpqueue()). --spec(is_empty/1 :: (bpqueue()) -> boolean()). --spec(len/1 :: (bpqueue()) -> non_neg_integer()). --spec(in/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(in_r/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(out/1 :: (bpqueue()) -> result()). --spec(out_r/1 :: (bpqueue()) -> result()). --spec(join/2 :: (bpqueue(), bpqueue()) -> bpqueue()). --spec(foldl/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(foldr/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(from_list/1 :: ([{prefix(), [value()]}]) -> bpqueue()). --spec(to_list/1 :: (bpqueue()) -> [{prefix(), [value()]}]). --spec(map_fold_filter_l/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). --spec(map_fold_filter_r/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> {0, queue:new()}. - -is_empty({0, _Q}) -> true; -is_empty(_BPQ) -> false. - -len({N, _Q}) -> N. - -in(Prefix, Value, {0, Q}) -> - {1, queue:in({Prefix, queue:from_list([Value])}, Q)}; -in(Prefix, Value, BPQ) -> - in1({fun queue:in/2, fun queue:out_r/1}, Prefix, Value, BPQ). - -in_r(Prefix, Value, BPQ = {0, _Q}) -> - in(Prefix, Value, BPQ); -in_r(Prefix, Value, BPQ) -> - in1({fun queue:in_r/2, fun queue:out/1}, Prefix, Value, BPQ). - -in1({In, Out}, Prefix, Value, {N, Q}) -> - {N+1, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, In(Value, InnerQ)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, queue:in(Value, queue:new())}, Q) - end}. - -in_q(Prefix, Queue, BPQ = {0, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - N -> {N, queue:in({Prefix, Queue}, Q)} - end; -in_q(Prefix, Queue, BPQ) -> - in_q1({fun queue:in/2, fun queue:out_r/1, - fun queue:join/2}, - Prefix, Queue, BPQ). - -in_q_r(Prefix, Queue, BPQ = {0, _Q}) -> - in_q(Prefix, Queue, BPQ); -in_q_r(Prefix, Queue, BPQ) -> - in_q1({fun queue:in_r/2, fun queue:out/1, - fun (T, H) -> queue:join(H, T) end}, - Prefix, Queue, BPQ). - -in_q1({In, Out, Join}, Prefix, Queue, BPQ = {N, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - M -> {N + M, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, Join(InnerQ, Queue)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, Queue}, Q) - end} - end. - -out({0, _Q} = BPQ) -> {empty, BPQ}; -out(BPQ) -> out1({fun queue:in_r/2, fun queue:out/1}, BPQ). - -out_r({0, _Q} = BPQ) -> {empty, BPQ}; -out_r(BPQ) -> out1({fun queue:in/2, fun queue:out_r/1}, BPQ). - -out1({In, Out}, {N, Q}) -> - {{value, {Prefix, InnerQ}}, Q1} = Out(Q), - {{value, Value}, InnerQ1} = Out(InnerQ), - Q2 = case queue:is_empty(InnerQ1) of - true -> Q1; - false -> In({Prefix, InnerQ1}, Q1) - end, - {{value, Prefix, Value}, {N-1, Q2}}. - -join({0, _Q}, BPQ) -> - BPQ; -join(BPQ, {0, _Q}) -> - BPQ; -join({NHead, QHead}, {NTail, QTail}) -> - {{value, {Prefix, InnerQHead}}, QHead1} = queue:out_r(QHead), - {NHead + NTail, - case queue:out(QTail) of - {{value, {Prefix, InnerQTail}}, QTail1} -> - queue:join( - queue:in({Prefix, queue:join(InnerQHead, InnerQTail)}, QHead1), - QTail1); - {{value, {_Prefix, _InnerQTail}}, _QTail1} -> - queue:join(QHead, QTail) - end}. - -foldl(_Fun, Init, {0, _Q}) -> Init; -foldl( Fun, Init, {_N, Q}) -> fold1(fun queue:out/1, Fun, Init, Q). - -foldr(_Fun, Init, {0, _Q}) -> Init; -foldr( Fun, Init, {_N, Q}) -> fold1(fun queue:out_r/1, Fun, Init, Q). - -fold1(Out, Fun, Init, Q) -> - case Out(Q) of - {empty, _Q} -> - Init; - {{value, {Prefix, InnerQ}}, Q1} -> - fold1(Out, Fun, fold1(Out, Fun, Prefix, Init, InnerQ), Q1) - end. - -fold1(Out, Fun, Prefix, Init, InnerQ) -> - case Out(InnerQ) of - {empty, _Q} -> - Init; - {{value, Value}, InnerQ1} -> - fold1(Out, Fun, Prefix, Fun(Prefix, Value, Init), InnerQ1) - end. - -from_list(List) -> - {FinalPrefix, FinalInnerQ, ListOfPQs1, Len} = - lists:foldl( - fun ({_Prefix, []}, Acc) -> - Acc; - ({Prefix, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix, queue:join(InnerQ, queue:from_list(InnerList)), - ListOfPQs, LenAcc + length(InnerList)}; - ({Prefix1, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix1, queue:from_list(InnerList), - [{Prefix, InnerQ} | ListOfPQs], LenAcc + length(InnerList)} - end, {undefined, queue:new(), [], 0}, List), - ListOfPQs2 = [{FinalPrefix, FinalInnerQ} | ListOfPQs1], - [{undefined, InnerQ1} | Rest] = All = lists:reverse(ListOfPQs2), - {Len, queue:from_list(case queue:is_empty(InnerQ1) of - true -> Rest; - false -> All - end)}. - -to_list({0, _Q}) -> []; -to_list({_N, Q}) -> [{Prefix, queue:to_list(InnerQ)} || - {Prefix, InnerQ} <- queue:to_list(Q)]. - -%% map_fold_filter_[lr](FilterFun, Fun, Init, BPQ) -> {BPQ, Init} -%% where FilterFun(Prefix) -> boolean() -%% Fun(Value, Init) -> {Prefix, Value, Init} | stop -%% -%% The filter fun allows you to skip very quickly over blocks that -%% you're not interested in. Such blocks appear in the resulting bpq -%% without modification. The Fun is then used both to map the value, -%% which also allows you to change the prefix (and thus block) of the -%% value, and also to modify the Init/Acc (just like a fold). If the -%% Fun returns 'stop' then it is not applied to any further items. -map_fold_filter_l(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_l(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out/1, fun queue:in/2, - fun in_q/3, fun join/2}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter_r(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_r(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out_r/1, fun queue:in_r/2, - fun in_q_r/3, fun (T, H) -> join(H, T) end}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter1(Funs = {Out, _In, InQ, Join}, Len, PFilter, Fun, - Init, Q, QNew) -> - case Out(Q) of - {empty, _Q} -> - {QNew, Init}; - {{value, {Prefix, InnerQ}}, Q1} -> - case PFilter(Prefix) of - true -> - {Init1, QNew1, Cont} = - map_fold_filter2(Funs, Fun, Prefix, Prefix, - Init, InnerQ, QNew, queue:new()), - case Cont of - false -> {Join(QNew1, {Len - len(QNew1), Q1}), Init1}; - true -> map_fold_filter1(Funs, Len, PFilter, Fun, - Init1, Q1, QNew1) - end; - false -> - map_fold_filter1(Funs, Len, PFilter, Fun, - Init, Q1, InQ(Prefix, InnerQ, QNew)) - end - end. - -map_fold_filter2(Funs = {Out, In, InQ, _Join}, Fun, OrigPrefix, Prefix, - Init, InnerQ, QNew, InnerQNew) -> - case Out(InnerQ) of - {empty, _Q} -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), true}; - {{value, Value}, InnerQ1} -> - case Fun(Value, Init) of - stop -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), false}; - {Prefix1, Value1, Init1} -> - {Prefix2, QNew1, InnerQNew1} = - case Prefix1 =:= Prefix of - true -> {Prefix, QNew, In(Value1, InnerQNew)}; - false -> {Prefix1, InQ(Prefix, InnerQNew, QNew), - In(Value1, queue:new())} - end, - map_fold_filter2(Funs, Fun, OrigPrefix, Prefix2, - Init1, InnerQ1, QNew1, InnerQNew1) - end - end. diff --git a/src/delegate.erl b/src/delegate.erl deleted file mode 100644 index 17046201..00000000 --- a/src/delegate.erl +++ /dev/null @@ -1,154 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate). - --behaviour(gen_server2). - --export([start_link/1, invoke_no_result/2, invoke/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: - (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). --spec(invoke_no_result/2 :: - (pid() | [pid()], fun ((pid()) -> any())) -> 'ok'). --spec(invoke/2 :: - ( pid(), fun ((pid()) -> A)) -> A; - ([pid()], fun ((pid()) -> A)) -> {[{pid(), A}], - [{pid(), term()}]}). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(Num) -> - gen_server2:start_link({local, delegate_name(Num)}, ?MODULE, [], []). - -invoke(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - Fun(Pid); -invoke(Pid, Fun) when is_pid(Pid) -> - case invoke([Pid], Fun) of - {[{Pid, Result}], []} -> - Result; - {[], [{Pid, {Class, Reason, StackTrace}}]} -> - erlang:raise(Class, Reason, StackTrace) - end; - -invoke(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - %% The use of multi_call is only safe because the timeout is - %% infinity, and thus there is no process spawned in order to do - %% the sending. Thus calls can't overtake preceding calls/casts. - {Replies, BadNodes} = - case orddict:fetch_keys(Grouped) of - [] -> {[], []}; - RemoteNodes -> gen_server2:multi_call( - RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}, infinity) - end, - BadPids = [{Pid, {exit, {nodedown, BadNode}, []}} || - BadNode <- BadNodes, - Pid <- orddict:fetch(BadNode, Grouped)], - ResultsNoNode = lists:append([safe_invoke(LocalPids, Fun) | - [Results || {_Node, Results} <- Replies]]), - lists:foldl( - fun ({ok, Pid, Result}, {Good, Bad}) -> {[{Pid, Result} | Good], Bad}; - ({error, Pid, Error}, {Good, Bad}) -> {Good, [{Pid, Error} | Bad]} - end, {[], BadPids}, ResultsNoNode). - -invoke_no_result(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - safe_invoke(Pid, Fun), %% we don't care about any error - ok; -invoke_no_result(Pid, Fun) when is_pid(Pid) -> - invoke_no_result([Pid], Fun); - -invoke_no_result(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - case orddict:fetch_keys(Grouped) of - [] -> ok; - RemoteNodes -> gen_server2:abcast(RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}) - end, - safe_invoke(LocalPids, Fun), %% must not die - ok. - -%%---------------------------------------------------------------------------- - -group_pids_by_node(Pids) -> - LocalNode = node(), - lists:foldl( - fun (Pid, {Local, Remote}) when node(Pid) =:= LocalNode -> - {[Pid | Local], Remote}; - (Pid, {Local, Remote}) -> - {Local, - orddict:update( - node(Pid), fun (List) -> [Pid | List] end, [Pid], Remote)} - end, {[], orddict:new()}, Pids). - -delegate_name(Hash) -> - list_to_atom("delegate_" ++ integer_to_list(Hash)). - -delegate(RemoteNodes) -> - case get(delegate) of - undefined -> Name = delegate_name( - erlang:phash2(self(), - delegate_sup:count(RemoteNodes))), - put(delegate, Name), - Name; - Name -> Name - end. - -safe_invoke(Pids, Fun) when is_list(Pids) -> - [safe_invoke(Pid, Fun) || Pid <- Pids]; -safe_invoke(Pid, Fun) when is_pid(Pid) -> - try - {ok, Pid, Fun(Pid)} - catch Class:Reason -> - {error, Pid, {Class, Reason, erlang:get_stacktrace()}} - end. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, node(), hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({invoke, Fun, Grouped}, _From, Node) -> - {reply, safe_invoke(orddict:fetch(Node, Grouped), Fun), Node, hibernate}. - -handle_cast({invoke, Fun, Grouped}, Node) -> - safe_invoke(orddict:fetch(Node, Grouped), Fun), - {noreply, Node, hibernate}. - -handle_info(_Info, Node) -> - {noreply, Node, hibernate}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, Node, _Extra) -> - {ok, Node}. diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl deleted file mode 100644 index fc693c7d..00000000 --- a/src/delegate_sup.erl +++ /dev/null @@ -1,59 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate_sup). - --behaviour(supervisor). - --export([start_link/1, count/1]). - --export([init/1]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (integer()) -> {'ok', pid()} | {'error', any()}). --spec(count/1 :: ([node()]) -> integer()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Count) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [Count]). - -count([]) -> - 1; -count([Node | Nodes]) -> - try - length(supervisor:which_children({?SERVER, Node})) - catch exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - count(Nodes); - exit:{R, _} when R =:= noproc; R =:= normal; R =:= shutdown; - R =:= nodedown -> - count(Nodes) - end. - -%%---------------------------------------------------------------------------- - -init([Count]) -> - {ok, {{one_for_one, 10, 10}, - [{Num, {delegate, start_link, [Num]}, - transient, 16#ffffffff, worker, [delegate]} || - Num <- lists:seq(0, Count - 1)]}}. diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl deleted file mode 100644 index 61b08d49..00000000 --- a/src/file_handle_cache.erl +++ /dev/null @@ -1,1197 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(file_handle_cache). - -%% A File Handle Cache -%% -%% This extends a subset of the functionality of the Erlang file -%% module. In the below, we use "file handle" to specifically refer to -%% file handles, and "file descriptor" to refer to descriptors which -%% are not file handles, e.g. sockets. -%% -%% Some constraints -%% 1) This supports one writer, multiple readers per file. Nothing -%% else. -%% 2) Do not open the same file from different processes. Bad things -%% may happen, especially for writes. -%% 3) Writes are all appends. You cannot write to the middle of a -%% file, although you can truncate and then append if you want. -%% 4) Although there is a write buffer, there is no read buffer. Feel -%% free to use the read_ahead mode, but beware of the interaction -%% between that buffer and the write buffer. -%% -%% Some benefits -%% 1) You do not have to remember to call sync before close -%% 2) Buffering is much more flexible than with the plain file module, -%% and you can control when the buffer gets flushed out. This means -%% that you can rely on reads-after-writes working, without having to -%% call the expensive sync. -%% 3) Unnecessary calls to position and sync get optimised out. -%% 4) You can find out what your 'real' offset is, and what your -%% 'virtual' offset is (i.e. where the hdl really is, and where it -%% would be after the write buffer is written out). -%% 5) You can find out what the offset was when you last sync'd. -%% -%% There is also a server component which serves to limit the number -%% of open file descriptors. This is a hard limit: the server -%% component will ensure that clients do not have more file -%% descriptors open than it's configured to allow. -%% -%% On open, the client requests permission from the server to open the -%% required number of file handles. The server may ask the client to -%% close other file handles that it has open, or it may queue the -%% request and ask other clients to close file handles they have open -%% in order to satisfy the request. Requests are always satisfied in -%% the order they arrive, even if a latter request (for a small number -%% of file handles) can be satisfied before an earlier request (for a -%% larger number of file handles). On close, the client sends a -%% message to the server. These messages allow the server to keep -%% track of the number of open handles. The client also keeps a -%% gb_tree which is updated on every use of a file handle, mapping the -%% time at which the file handle was last used (timestamp) to the -%% handle. Thus the smallest key in this tree maps to the file handle -%% that has not been used for the longest amount of time. This -%% smallest key is included in the messages to the server. As such, -%% the server keeps track of when the least recently used file handle -%% was used *at the point of the most recent open or close* by each -%% client. -%% -%% Note that this data can go very out of date, by the client using -%% the least recently used handle. -%% -%% When the limit is exceeded (i.e. the number of open file handles is -%% at the limit and there are pending 'open' requests), the server -%% calculates the average age of the last reported least recently used -%% file handle of all the clients. It then tells all the clients to -%% close any handles not used for longer than this average, by -%% invoking the callback the client registered. The client should -%% receive this message and pass it into -%% set_maximum_since_use/1. However, it is highly possible this age -%% will be greater than the ages of all the handles the client knows -%% of because the client has used its file handles in the mean -%% time. Thus at this point the client reports to the server the -%% current timestamp at which its least recently used file handle was -%% last used. The server will check two seconds later that either it -%% is back under the limit, in which case all is well again, or if -%% not, it will calculate a new average age. Its data will be much -%% more recent now, and so it is very likely that when this is -%% communicated to the clients, the clients will close file handles. -%% (In extreme cases, where it's very likely that all clients have -%% used their open handles since they last sent in an update, which -%% would mean that the average will never cause any file handles to -%% be closed, the server can send out an average age of 0, resulting -%% in all available clients closing all their file handles.) -%% -%% Care is taken to ensure that (a) processes which are blocked -%% waiting for file descriptors to become available are not sent -%% requests to close file handles; and (b) given it is known how many -%% file handles a process has open, when the average age is forced to -%% 0, close messages are only sent to enough processes to release the -%% correct number of file handles and the list of processes is -%% randomly shuffled. This ensures we don't cause processes to -%% needlessly close file handles, and ensures that we don't always -%% make such requests of the same processes. -%% -%% The advantage of this scheme is that there is only communication -%% from the client to the server on open, close, and when in the -%% process of trying to reduce file handle usage. There is no -%% communication from the client to the server on normal file handle -%% operations. This scheme forms a feed-back loop - the server does -%% not care which file handles are closed, just that some are, and it -%% checks this repeatedly when over the limit. -%% -%% Handles which are closed as a result of the server are put into a -%% "soft-closed" state in which the handle is closed (data flushed out -%% and sync'd first) but the state is maintained. The handle will be -%% fully reopened again as soon as needed, thus users of this library -%% do not need to worry about their handles being closed by the server -%% - reopening them when necessary is handled transparently. -%% -%% The server also supports obtain and transfer. obtain/0 blocks until -%% a file descriptor is available, at which point the requesting -%% process is considered to 'own' one more descriptor. transfer/1 -%% transfers ownership of a file descriptor between processes. It is -%% non-blocking. Obtain is used to obtain permission to accept file -%% descriptors. Obtain has a lower limit, set by the ?OBTAIN_LIMIT/1 -%% macro. File handles can use the entire limit, but will be evicted -%% by obtain calls up to the point at which no more obtain calls can -%% be satisfied by the obtains limit. Thus there will always be some -%% capacity available for file handles. Processes that use obtain are -%% never asked to return them, and they are not managed in any way by -%% the server. It is simply a mechanism to ensure that processes that -%% need file descriptors such as sockets can do so in such a way that -%% the overall number of open file descriptors is managed. -%% -%% The callers of register_callback/3, obtain/0, and the argument of -%% transfer/1 are monitored, reducing the count of handles in use -%% appropriately when the processes terminate. - --behaviour(gen_server). - --export([register_callback/3]). --export([open/3, close/1, read/2, append/2, sync/1, position/2, truncate/1, - last_sync_offset/1, current_virtual_offset/1, current_raw_offset/1, - flush/1, copy/3, set_maximum_since_use/1, delete/1, clear/1]). --export([obtain/0, transfer/1, set_limit/1, get_limit/0, info_keys/0, info/0, - info/1]). --export([ulimit/0]). - --export([start_link/0, init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). --define(RESERVED_FOR_OTHERS, 100). - --define(FILE_HANDLES_LIMIT_OTHER, 1024). --define(FILE_HANDLES_CHECK_INTERVAL, 2000). - --define(OBTAIN_LIMIT(LIMIT), trunc((LIMIT * 0.9) - 2)). --define(CLIENT_ETS_TABLE, ?MODULE). - -%%---------------------------------------------------------------------------- - --record(file, - { reader_count, - has_writer - }). - --record(handle, - { hdl, - offset, - trusted_offset, - is_dirty, - write_buffer_size, - write_buffer_size_limit, - write_buffer, - at_eof, - path, - mode, - options, - is_write, - is_read, - last_used_at - }). - --record(fhc_state, - { elders, - limit, - open_count, - open_pending, - obtain_limit, - obtain_count, - obtain_pending, - clients, - timer_ref - }). - --record(cstate, - { pid, - callback, - opened, - obtained, - blocked, - pending_closes - }). - --record(pending, - { kind, - pid, - requested, - from - }). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(ref() :: any()). --type(ok_or_error() :: 'ok' | {'error', any()}). --type(val_or_error(T) :: {'ok', T} | {'error', any()}). --type(position() :: ('bof' | 'eof' | non_neg_integer() | - {('bof' |'eof'), non_neg_integer()} | - {'cur', integer()})). --type(offset() :: non_neg_integer()). - --spec(register_callback/3 :: (atom(), atom(), [any()]) -> 'ok'). --spec(open/3 :: - (string(), [any()], - [{'write_buffer', (non_neg_integer() | 'infinity' | 'unbuffered')}]) - -> val_or_error(ref())). --spec(close/1 :: (ref()) -> ok_or_error()). --spec(read/2 :: (ref(), non_neg_integer()) -> - val_or_error([char()] | binary()) | 'eof'). --spec(append/2 :: (ref(), iodata()) -> ok_or_error()). --spec(sync/1 :: (ref()) -> ok_or_error()). --spec(position/2 :: (ref(), position()) -> val_or_error(offset())). --spec(truncate/1 :: (ref()) -> ok_or_error()). --spec(last_sync_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_virtual_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_raw_offset/1 :: (ref()) -> val_or_error(offset())). --spec(flush/1 :: (ref()) -> ok_or_error()). --spec(copy/3 :: (ref(), ref(), non_neg_integer()) -> - val_or_error(non_neg_integer())). --spec(set_maximum_since_use/1 :: (non_neg_integer()) -> 'ok'). --spec(delete/1 :: (ref()) -> ok_or_error()). --spec(clear/1 :: (ref()) -> ok_or_error()). --spec(obtain/0 :: () -> 'ok'). --spec(transfer/1 :: (pid()) -> 'ok'). --spec(set_limit/1 :: (non_neg_integer()) -> 'ok'). --spec(get_limit/0 :: () -> non_neg_integer()). --spec(info_keys/0 :: () -> [atom()]). --spec(info/0 :: () -> [{atom(), any()}]). --spec(info/1 :: ([atom()]) -> [{atom(), any()}]). --spec(ulimit/0 :: () -> 'infinity' | 'unknown' | non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- --define(INFO_KEYS, [obtain_count, obtain_limit]). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], [{timeout, infinity}]). - -register_callback(M, F, A) - when is_atom(M) andalso is_atom(F) andalso is_list(A) -> - gen_server:cast(?SERVER, {register_callback, self(), {M, F, A}}). - -open(Path, Mode, Options) -> - Path1 = filename:absname(Path), - File1 = #file { reader_count = RCount, has_writer = HasWriter } = - case get({Path1, fhc_file}) of - File = #file {} -> File; - undefined -> #file { reader_count = 0, - has_writer = false } - end, - Mode1 = append_to_write(Mode), - IsWriter = is_writer(Mode1), - case IsWriter andalso HasWriter of - true -> {error, writer_exists}; - false -> {ok, Ref} = new_closed_handle(Path1, Mode1, Options), - case get_or_reopen([{Ref, new}]) of - {ok, [_Handle1]} -> - RCount1 = case is_reader(Mode1) of - true -> RCount + 1; - false -> RCount - end, - HasWriter1 = HasWriter orelse IsWriter, - put({Path1, fhc_file}, - File1 #file { reader_count = RCount1, - has_writer = HasWriter1 }), - {ok, Ref}; - Error -> - erase({Ref, fhc_handle}), - Error - end - end. - -close(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> ok; - Handle -> case hard_close(Handle) of - ok -> ok; - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -read(Ref, Count) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_read = false }]) -> - {error, not_open_for_reading}; - ([Handle = #handle { hdl = Hdl, offset = Offset }]) -> - case file:read(Hdl, Count) of - {ok, Data} = Obj -> Offset1 = Offset + iolist_size(Data), - {Obj, - [Handle #handle { offset = Offset1 }]}; - eof -> {eof, [Handle #handle { at_eof = true }]}; - Error -> {Error, [Handle]} - end - end). - -append(Ref, Data) -> - with_handles( - [Ref], - fun ([#handle { is_write = false }]) -> - {error, not_open_for_writing}; - ([Handle]) -> - case maybe_seek(eof, Handle) of - {{ok, _Offset}, #handle { hdl = Hdl, offset = Offset, - write_buffer_size_limit = 0, - at_eof = true } = Handle1} -> - Offset1 = Offset + iolist_size(Data), - {file:write(Hdl, Data), - [Handle1 #handle { is_dirty = true, offset = Offset1 }]}; - {{ok, _Offset}, #handle { write_buffer = WriteBuffer, - write_buffer_size = Size, - write_buffer_size_limit = Limit, - at_eof = true } = Handle1} -> - WriteBuffer1 = [Data | WriteBuffer], - Size1 = Size + iolist_size(Data), - Handle2 = Handle1 #handle { write_buffer = WriteBuffer1, - write_buffer_size = Size1 }, - case Limit =/= infinity andalso Size1 > Limit of - true -> {Result, Handle3} = write_buffer(Handle2), - {Result, [Handle3]}; - false -> {ok, [Handle2]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -sync(Ref) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_dirty = false, write_buffer = [] }]) -> - ok; - ([Handle = #handle { hdl = Hdl, offset = Offset, - is_dirty = true, write_buffer = [] }]) -> - case file:sync(Hdl) of - ok -> {ok, [Handle #handle { trusted_offset = Offset, - is_dirty = false }]}; - Error -> {Error, [Handle]} - end - end). - -position(Ref, NewOffset) -> - with_flushed_handles( - [Ref], - fun ([Handle]) -> {Result, Handle1} = maybe_seek(NewOffset, Handle), - {Result, [Handle1]} - end). - -truncate(Ref) -> - with_flushed_handles( - [Ref], - fun ([Handle1 = #handle { hdl = Hdl, offset = Offset, - trusted_offset = TOffset }]) -> - case file:truncate(Hdl) of - ok -> TOffset1 = lists:min([Offset, TOffset]), - {ok, [Handle1 #handle { trusted_offset = TOffset1, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end - end). - -last_sync_offset(Ref) -> - with_handles([Ref], fun ([#handle { trusted_offset = TOffset }]) -> - {ok, TOffset} - end). - -current_virtual_offset(Ref) -> - with_handles([Ref], fun ([#handle { at_eof = true, is_write = true, - offset = Offset, - write_buffer_size = Size }]) -> - {ok, Offset + Size}; - ([#handle { offset = Offset }]) -> - {ok, Offset} - end). - -current_raw_offset(Ref) -> - with_handles([Ref], fun ([Handle]) -> {ok, Handle #handle.offset} end). - -flush(Ref) -> - with_flushed_handles([Ref], fun ([Handle]) -> {ok, [Handle]} end). - -copy(Src, Dest, Count) -> - with_flushed_handles( - [Src, Dest], - fun ([SHandle = #handle { is_read = true, hdl = SHdl, offset = SOffset }, - DHandle = #handle { is_write = true, hdl = DHdl, offset = DOffset }] - ) -> - case file:copy(SHdl, DHdl, Count) of - {ok, Count1} = Result1 -> - {Result1, - [SHandle #handle { offset = SOffset + Count1 }, - DHandle #handle { offset = DOffset + Count1, - is_dirty = true }]}; - Error -> - {Error, [SHandle, DHandle]} - end; - (_Handles) -> - {error, incorrect_handle_modes} - end). - -delete(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> - ok; - Handle = #handle { path = Path } -> - case hard_close(Handle #handle { is_dirty = false, - write_buffer = [] }) of - ok -> file:delete(Path); - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -clear(Ref) -> - with_handles( - [Ref], - fun ([#handle { at_eof = true, write_buffer_size = 0, offset = 0 }]) -> - ok; - ([Handle]) -> - case maybe_seek(bof, Handle #handle { write_buffer = [], - write_buffer_size = 0 }) of - {{ok, 0}, Handle1 = #handle { hdl = Hdl }} -> - case file:truncate(Hdl) of - ok -> {ok, [Handle1 #handle {trusted_offset = 0, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -set_maximum_since_use(MaximumAge) -> - Now = now(), - case lists:foldl( - fun ({{Ref, fhc_handle}, - Handle = #handle { hdl = Hdl, last_used_at = Then }}, Rep) -> - case Hdl =/= closed andalso - timer:now_diff(Now, Then) >= MaximumAge of - true -> soft_close(Ref, Handle) orelse Rep; - false -> Rep - end; - (_KeyValuePair, Rep) -> - Rep - end, false, get()) of - false -> age_tree_change(), ok; - true -> ok - end. - -obtain() -> - gen_server:call(?SERVER, {obtain, self()}, infinity). - -transfer(Pid) -> - gen_server:cast(?SERVER, {transfer, self(), Pid}). - -set_limit(Limit) -> - gen_server:call(?SERVER, {set_limit, Limit}, infinity). - -get_limit() -> - gen_server:call(?SERVER, get_limit, infinity). - -info_keys() -> ?INFO_KEYS. - -info() -> info(?INFO_KEYS). -info(Items) -> gen_server:call(?SERVER, {info, Items}, infinity). - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -is_reader(Mode) -> lists:member(read, Mode). - -is_writer(Mode) -> lists:member(write, Mode). - -append_to_write(Mode) -> - case lists:member(append, Mode) of - true -> [write | Mode -- [append, write]]; - false -> Mode - end. - -with_handles(Refs, Fun) -> - case get_or_reopen([{Ref, reopen} || Ref <- Refs]) of - {ok, Handles} -> - case Fun(Handles) of - {Result, Handles1} when is_list(Handles1) -> - lists:zipwith(fun put_handle/2, Refs, Handles1), - Result; - Result -> - Result - end; - Error -> - Error - end. - -with_flushed_handles(Refs, Fun) -> - with_handles( - Refs, - fun (Handles) -> - case lists:foldl( - fun (Handle, {ok, HandlesAcc}) -> - {Res, Handle1} = write_buffer(Handle), - {Res, [Handle1 | HandlesAcc]}; - (Handle, {Error, HandlesAcc}) -> - {Error, [Handle | HandlesAcc]} - end, {ok, []}, Handles) of - {ok, Handles1} -> - Fun(lists:reverse(Handles1)); - {Error, Handles1} -> - {Error, lists:reverse(Handles1)} - end - end). - -get_or_reopen(RefNewOrReopens) -> - case partition_handles(RefNewOrReopens) of - {OpenHdls, []} -> - {ok, [Handle || {_Ref, Handle} <- OpenHdls]}; - {OpenHdls, ClosedHdls} -> - Oldest = oldest(get_age_tree(), fun () -> now() end), - case gen_server:call(?SERVER, {open, self(), length(ClosedHdls), - Oldest}, infinity) of - ok -> - case reopen(ClosedHdls) of - {ok, RefHdls} -> sort_handles(RefNewOrReopens, - OpenHdls, RefHdls, []); - Error -> Error - end; - close -> - [soft_close(Ref, Handle) || - {{Ref, fhc_handle}, Handle = #handle { hdl = Hdl }} <- - get(), - Hdl =/= closed], - get_or_reopen(RefNewOrReopens) - end - end. - -reopen(ClosedHdls) -> reopen(ClosedHdls, get_age_tree(), []). - -reopen([], Tree, RefHdls) -> - put_age_tree(Tree), - {ok, lists:reverse(RefHdls)}; -reopen([{Ref, NewOrReopen, Handle = #handle { hdl = closed, - path = Path, - mode = Mode, - offset = Offset, - last_used_at = undefined }} | - RefNewOrReopenHdls] = ToOpen, Tree, RefHdls) -> - case file:open(Path, case NewOrReopen of - new -> Mode; - reopen -> [read | Mode] - end) of - {ok, Hdl} -> - Now = now(), - {{ok, Offset1}, Handle1} = - maybe_seek(Offset, Handle #handle { hdl = Hdl, - offset = 0, - last_used_at = Now }), - Handle2 = Handle1 #handle { trusted_offset = Offset1 }, - put({Ref, fhc_handle}, Handle2), - reopen(RefNewOrReopenHdls, gb_trees:insert(Now, Ref, Tree), - [{Ref, Handle2} | RefHdls]); - Error -> - %% NB: none of the handles in ToOpen are in the age tree - Oldest = oldest(Tree, fun () -> undefined end), - [gen_server:cast(?SERVER, {close, self(), Oldest}) || _ <- ToOpen], - put_age_tree(Tree), - Error - end. - -partition_handles(RefNewOrReopens) -> - lists:foldr( - fun ({Ref, NewOrReopen}, {Open, Closed}) -> - case get({Ref, fhc_handle}) of - #handle { hdl = closed } = Handle -> - {Open, [{Ref, NewOrReopen, Handle} | Closed]}; - #handle {} = Handle -> - {[{Ref, Handle} | Open], Closed} - end - end, {[], []}, RefNewOrReopens). - -sort_handles([], [], [], Acc) -> - {ok, lists:reverse(Acc)}; -sort_handles([{Ref, _} | RefHdls], [{Ref, Handle} | RefHdlsA], RefHdlsB, Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]); -sort_handles([{Ref, _} | RefHdls], RefHdlsA, [{Ref, Handle} | RefHdlsB], Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]). - -put_handle(Ref, Handle = #handle { last_used_at = Then }) -> - Now = now(), - age_tree_update(Then, Now, Ref), - put({Ref, fhc_handle}, Handle #handle { last_used_at = Now }). - -with_age_tree(Fun) -> put_age_tree(Fun(get_age_tree())). - -get_age_tree() -> - case get(fhc_age_tree) of - undefined -> gb_trees:empty(); - AgeTree -> AgeTree - end. - -put_age_tree(Tree) -> put(fhc_age_tree, Tree). - -age_tree_update(Then, Now, Ref) -> - with_age_tree( - fun (Tree) -> - gb_trees:insert(Now, Ref, gb_trees:delete_any(Then, Tree)) - end). - -age_tree_delete(Then) -> - with_age_tree( - fun (Tree) -> - Tree1 = gb_trees:delete_any(Then, Tree), - Oldest = oldest(Tree1, fun () -> undefined end), - gen_server:cast(?SERVER, {close, self(), Oldest}), - Tree1 - end). - -age_tree_change() -> - with_age_tree( - fun (Tree) -> - case gb_trees:is_empty(Tree) of - true -> Tree; - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - gen_server:cast(?SERVER, {update, self(), Oldest}) - end, - Tree - end). - -oldest(Tree, DefaultFun) -> - case gb_trees:is_empty(Tree) of - true -> DefaultFun(); - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - Oldest - end. - -new_closed_handle(Path, Mode, Options) -> - WriteBufferSize = - case proplists:get_value(write_buffer, Options, unbuffered) of - unbuffered -> 0; - infinity -> infinity; - N when is_integer(N) -> N - end, - Ref = make_ref(), - put({Ref, fhc_handle}, #handle { hdl = closed, - offset = 0, - trusted_offset = 0, - is_dirty = false, - write_buffer_size = 0, - write_buffer_size_limit = WriteBufferSize, - write_buffer = [], - at_eof = false, - path = Path, - mode = Mode, - options = Options, - is_write = is_writer(Mode), - is_read = is_reader(Mode), - last_used_at = undefined }), - {ok, Ref}. - -soft_close(Ref, Handle) -> - {Res, Handle1} = soft_close(Handle), - case Res of - ok -> put({Ref, fhc_handle}, Handle1), - true; - _ -> put_handle(Ref, Handle1), - false - end. - -soft_close(Handle = #handle { hdl = closed }) -> - {ok, Handle}; -soft_close(Handle) -> - case write_buffer(Handle) of - {ok, #handle { hdl = Hdl, - offset = Offset, - is_dirty = IsDirty, - last_used_at = Then } = Handle1 } -> - ok = case IsDirty of - true -> file:sync(Hdl); - false -> ok - end, - ok = file:close(Hdl), - age_tree_delete(Then), - {ok, Handle1 #handle { hdl = closed, - trusted_offset = Offset, - is_dirty = false, - last_used_at = undefined }}; - {_Error, _Handle} = Result -> - Result - end. - -hard_close(Handle) -> - case soft_close(Handle) of - {ok, #handle { path = Path, - is_read = IsReader, is_write = IsWriter }} -> - #file { reader_count = RCount, has_writer = HasWriter } = File = - get({Path, fhc_file}), - RCount1 = case IsReader of - true -> RCount - 1; - false -> RCount - end, - HasWriter1 = HasWriter andalso not IsWriter, - case RCount1 =:= 0 andalso not HasWriter1 of - true -> erase({Path, fhc_file}); - false -> put({Path, fhc_file}, - File #file { reader_count = RCount1, - has_writer = HasWriter1 }) - end, - ok; - {_Error, _Handle} = Result -> - Result - end. - -maybe_seek(NewOffset, Handle = #handle { hdl = Hdl, offset = Offset, - at_eof = AtEoF }) -> - {AtEoF1, NeedsSeek} = needs_seek(AtEoF, Offset, NewOffset), - case (case NeedsSeek of - true -> file:position(Hdl, NewOffset); - false -> {ok, Offset} - end) of - {ok, Offset1} = Result -> - {Result, Handle #handle { offset = Offset1, at_eof = AtEoF1 }}; - {error, _} = Error -> - {Error, Handle} - end. - -needs_seek( AtEoF, _CurOffset, cur ) -> {AtEoF, false}; -needs_seek( AtEoF, _CurOffset, {cur, 0}) -> {AtEoF, false}; -needs_seek( true, _CurOffset, eof ) -> {true , false}; -needs_seek( true, _CurOffset, {eof, 0}) -> {true , false}; -needs_seek( false, _CurOffset, eof ) -> {true , true }; -needs_seek( false, _CurOffset, {eof, 0}) -> {true , true }; -needs_seek( AtEoF, 0, bof ) -> {AtEoF, false}; -needs_seek( AtEoF, 0, {bof, 0}) -> {AtEoF, false}; -needs_seek( AtEoF, CurOffset, CurOffset) -> {AtEoF, false}; -needs_seek( true, CurOffset, {bof, DesiredOffset}) - when DesiredOffset >= CurOffset -> - {true, true}; -needs_seek( true, _CurOffset, {cur, DesiredOffset}) - when DesiredOffset > 0 -> - {true, true}; -needs_seek( true, CurOffset, DesiredOffset) %% same as {bof, DO} - when is_integer(DesiredOffset) andalso DesiredOffset >= CurOffset -> - {true, true}; -%% because we can't really track size, we could well end up at EoF and not know -needs_seek(_AtEoF, _CurOffset, _DesiredOffset) -> - {false, true}. - -write_buffer(Handle = #handle { write_buffer = [] }) -> - {ok, Handle}; -write_buffer(Handle = #handle { hdl = Hdl, offset = Offset, - write_buffer = WriteBuffer, - write_buffer_size = DataSize, - at_eof = true }) -> - case file:write(Hdl, lists:reverse(WriteBuffer)) of - ok -> - Offset1 = Offset + DataSize, - {ok, Handle #handle { offset = Offset1, is_dirty = true, - write_buffer = [], write_buffer_size = 0 }}; - {error, _} = Error -> - {Error, Handle} - end. - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(obtain_count, #fhc_state{obtain_count = Count}) -> Count; -i(obtain_limit, #fhc_state{obtain_limit = Limit}) -> Limit; -i(Item, _) -> throw({bad_argument, Item}). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - Limit = case application:get_env(file_handles_high_watermark) of - {ok, Watermark} when (is_integer(Watermark) andalso - Watermark > 0) -> - Watermark; - _ -> - case ulimit() of - infinity -> infinity; - unknown -> ?FILE_HANDLES_LIMIT_OTHER; - Lim -> lists:max([2, Lim - ?RESERVED_FOR_OTHERS]) - end - end, - ObtainLimit = obtain_limit(Limit), - error_logger:info_msg("Limiting to approx ~p file handles (~p sockets)~n", - [Limit, ObtainLimit]), - Clients = ets:new(?CLIENT_ETS_TABLE, [set, private, {keypos, #cstate.pid}]), - {ok, #fhc_state { elders = dict:new(), - limit = Limit, - open_count = 0, - open_pending = pending_new(), - obtain_limit = ObtainLimit, - obtain_count = 0, - obtain_pending = pending_new(), - clients = Clients, - timer_ref = undefined }}. - -handle_call({open, Pid, Requested, EldestUnusedSince}, From, - State = #fhc_state { open_count = Count, - open_pending = Pending, - elders = Elders, - clients = Clients }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - Item = #pending { kind = open, - pid = Pid, - requested = Requested, - from = From }, - ok = track_client(Pid, Clients), - State1 = State #fhc_state { elders = Elders1 }, - case needs_reduce(State1 #fhc_state { open_count = Count + Requested }) of - true -> case ets:lookup(Clients, Pid) of - [#cstate { opened = 0 }] -> - true = ets:update_element( - Clients, Pid, {#cstate.blocked, true}), - {noreply, - reduce(State1 #fhc_state { - open_pending = pending_in(Item, Pending) })}; - [#cstate { opened = Opened }] -> - true = ets:update_element( - Clients, Pid, - {#cstate.pending_closes, Opened}), - {reply, close, State1} - end; - false -> {noreply, run_pending_item(Item, State1)} - end; - -handle_call({obtain, Pid}, From, State = #fhc_state { obtain_count = Count, - obtain_pending = Pending, - clients = Clients }) -> - ok = track_client(Pid, Clients), - Item = #pending { kind = obtain, pid = Pid, requested = 1, from = From }, - Enqueue = fun () -> - true = ets:update_element(Clients, Pid, - {#cstate.blocked, true}), - State #fhc_state { - obtain_pending = pending_in(Item, Pending) } - end, - {noreply, - case obtain_limit_reached(State) of - true -> Enqueue(); - false -> case needs_reduce(State #fhc_state { - obtain_count = Count + 1 }) of - true -> reduce(Enqueue()); - false -> adjust_alarm( - State, run_pending_item(Item, State)) - end - end}; - -handle_call({set_limit, Limit}, _From, State) -> - {reply, ok, adjust_alarm( - State, maybe_reduce( - process_pending( - State #fhc_state { - limit = Limit, - obtain_limit = obtain_limit(Limit) })))}; - -handle_call(get_limit, _From, State = #fhc_state { limit = Limit }) -> - {reply, Limit, State}; - -handle_call({info, Items}, _From, State) -> - {reply, infos(Items, State), State}. - -handle_cast({register_callback, Pid, MFA}, - State = #fhc_state { clients = Clients }) -> - ok = track_client(Pid, Clients), - true = ets:update_element(Clients, Pid, {#cstate.callback, MFA}), - {noreply, State}; - -handle_cast({update, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - %% don't call maybe_reduce from here otherwise we can create a - %% storm of messages - {noreply, State #fhc_state { elders = Elders1 }}; - -handle_cast({close, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders, clients = Clients }) -> - Elders1 = case EldestUnusedSince of - undefined -> dict:erase(Pid, Elders); - _ -> dict:store(Pid, EldestUnusedSince, Elders) - end, - ets:update_counter(Clients, Pid, {#cstate.pending_closes, -1, 0, 0}), - {noreply, adjust_alarm(State, process_pending( - update_counts(open, Pid, -1, - State #fhc_state { elders = Elders1 })))}; - -handle_cast({transfer, FromPid, ToPid}, State) -> - ok = track_client(ToPid, State#fhc_state.clients), - {noreply, process_pending( - update_counts(obtain, ToPid, +1, - update_counts(obtain, FromPid, -1, State)))}; - -handle_cast(check_counts, State) -> - {noreply, maybe_reduce(State #fhc_state { timer_ref = undefined })}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #fhc_state { elders = Elders, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_pending = ObtainPending, - clients = Clients }) -> - [#cstate { opened = Opened, obtained = Obtained }] = - ets:lookup(Clients, Pid), - true = ets:delete(Clients, Pid), - FilterFun = fun (#pending { pid = Pid1 }) -> Pid1 =/= Pid end, - {noreply, adjust_alarm( - State, - process_pending( - State #fhc_state { - open_count = OpenCount - Opened, - open_pending = filter_pending(FilterFun, OpenPending), - obtain_count = ObtainCount - Obtained, - obtain_pending = filter_pending(FilterFun, ObtainPending), - elders = dict:erase(Pid, Elders) }))}. - -terminate(_Reason, State = #fhc_state { clients = Clients }) -> - ets:delete(Clients), - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% pending queue abstraction helpers -%%---------------------------------------------------------------------------- - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -filter_pending(Fun, {Count, Queue}) -> - {Delta, Queue1} = - queue_fold( - fun (Item = #pending { requested = Requested }, {DeltaN, QueueN}) -> - case Fun(Item) of - true -> {DeltaN, queue:in(Item, QueueN)}; - false -> {DeltaN - Requested, QueueN} - end - end, {0, queue:new()}, Queue), - {Count + Delta, Queue1}. - -pending_new() -> - {0, queue:new()}. - -pending_in(Item = #pending { requested = Requested }, {Count, Queue}) -> - {Count + Requested, queue:in(Item, Queue)}. - -pending_out({0, _Queue} = Pending) -> - {empty, Pending}; -pending_out({N, Queue}) -> - {{value, #pending { requested = Requested }} = Result, Queue1} = - queue:out(Queue), - {Result, {N - Requested, Queue1}}. - -pending_count({Count, _Queue}) -> - Count. - -pending_is_empty({0, _Queue}) -> - true; -pending_is_empty({_N, _Queue}) -> - false. - -%%---------------------------------------------------------------------------- -%% server helpers -%%---------------------------------------------------------------------------- - -obtain_limit(infinity) -> infinity; -obtain_limit(Limit) -> case ?OBTAIN_LIMIT(Limit) of - OLimit when OLimit < 0 -> 0; - OLimit -> OLimit - end. - -obtain_limit_reached(#fhc_state { obtain_limit = Limit, - obtain_count = Count}) -> - Limit =/= infinity andalso Count >= Limit. - -adjust_alarm(OldState, NewState) -> - case {obtain_limit_reached(OldState), obtain_limit_reached(NewState)} of - {false, true} -> alarm_handler:set_alarm({file_descriptor_limit, []}); - {true, false} -> alarm_handler:clear_alarm(file_descriptor_limit); - _ -> ok - end, - NewState. - -process_pending(State = #fhc_state { limit = infinity }) -> - State; -process_pending(State) -> - process_open(process_obtain(State)). - -process_open(State = #fhc_state { limit = Limit, - open_pending = Pending, - open_count = OpenCount, - obtain_count = ObtainCount }) -> - {Pending1, State1} = - process_pending(Pending, Limit - (ObtainCount + OpenCount), State), - State1 #fhc_state { open_pending = Pending1 }. - -process_obtain(State = #fhc_state { limit = Limit, - obtain_pending = Pending, - obtain_limit = ObtainLimit, - obtain_count = ObtainCount, - open_count = OpenCount }) -> - Quota = lists:min([ObtainLimit - ObtainCount, - Limit - (ObtainCount + OpenCount)]), - {Pending1, State1} = process_pending(Pending, Quota, State), - State1 #fhc_state { obtain_pending = Pending1 }. - -process_pending(Pending, Quota, State) when Quota =< 0 -> - {Pending, State}; -process_pending(Pending, Quota, State) -> - case pending_out(Pending) of - {empty, _Pending} -> - {Pending, State}; - {{value, #pending { requested = Requested }}, _Pending1} - when Requested > Quota -> - {Pending, State}; - {{value, #pending { requested = Requested } = Item}, Pending1} -> - process_pending(Pending1, Quota - Requested, - run_pending_item(Item, State)) - end. - -run_pending_item(#pending { kind = Kind, - pid = Pid, - requested = Requested, - from = From }, - State = #fhc_state { clients = Clients }) -> - gen_server:reply(From, ok), - true = ets:update_element(Clients, Pid, {#cstate.blocked, false}), - update_counts(Kind, Pid, Requested, State). - -update_counts(Kind, Pid, Delta, - State = #fhc_state { open_count = OpenCount, - obtain_count = ObtainCount, - clients = Clients }) -> - {OpenDelta, ObtainDelta} = update_counts1(Kind, Pid, Delta, Clients), - State #fhc_state { open_count = OpenCount + OpenDelta, - obtain_count = ObtainCount + ObtainDelta }. - -update_counts1(open, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.opened, Delta}), - {Delta, 0}; -update_counts1(obtain, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.obtained, Delta}), - {0, Delta}. - -maybe_reduce(State) -> - case needs_reduce(State) of - true -> reduce(State); - false -> State - end. - -needs_reduce(#fhc_state { limit = Limit, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_limit = ObtainLimit, - obtain_pending = ObtainPending }) -> - Limit =/= infinity - andalso ((OpenCount + ObtainCount > Limit) - orelse (not pending_is_empty(OpenPending)) - orelse (ObtainCount < ObtainLimit - andalso not pending_is_empty(ObtainPending))). - -reduce(State = #fhc_state { open_pending = OpenPending, - obtain_pending = ObtainPending, - elders = Elders, - clients = Clients, - timer_ref = TRef }) -> - Now = now(), - {CStates, Sum, ClientCount} = - dict:fold(fun (Pid, Eldest, {CStatesAcc, SumAcc, CountAcc} = Accs) -> - [#cstate { pending_closes = PendingCloses, - opened = Opened, - blocked = Blocked } = CState] = - ets:lookup(Clients, Pid), - case Blocked orelse PendingCloses =:= Opened of - true -> Accs; - false -> {[CState | CStatesAcc], - SumAcc + timer:now_diff(Now, Eldest), - CountAcc + 1} - end - end, {[], 0, 0}, Elders), - case CStates of - [] -> ok; - _ -> case (Sum / ClientCount) - - (1000 * ?FILE_HANDLES_CHECK_INTERVAL) of - AverageAge when AverageAge > 0 -> - notify_age(CStates, AverageAge); - _ -> - notify_age0(Clients, CStates, - pending_count(OpenPending) + - pending_count(ObtainPending)) - end - end, - case TRef of - undefined -> {ok, TRef1} = timer:apply_after( - ?FILE_HANDLES_CHECK_INTERVAL, - gen_server, cast, [?SERVER, check_counts]), - State #fhc_state { timer_ref = TRef1 }; - _ -> State - end. - -notify_age(CStates, AverageAge) -> - lists:foreach( - fun (#cstate { callback = undefined }) -> ok; - (#cstate { callback = {M, F, A} }) -> apply(M, F, A ++ [AverageAge]) - end, CStates). - -notify_age0(Clients, CStates, Required) -> - case [CState || CState <- CStates, CState#cstate.callback =/= undefined] of - [] -> ok; - Notifications -> S = random:uniform(length(Notifications)), - {L1, L2} = lists:split(S, Notifications), - notify(Clients, Required, L2 ++ L1) - end. - -notify(_Clients, _Required, []) -> - ok; -notify(_Clients, Required, _Notifications) when Required =< 0 -> - ok; -notify(Clients, Required, [#cstate{ pid = Pid, - callback = {M, F, A}, - opened = Opened } | Notifications]) -> - apply(M, F, A ++ [0]), - ets:update_element(Clients, Pid, {#cstate.pending_closes, Opened}), - notify(Clients, Required - Opened, Notifications). - -track_client(Pid, Clients) -> - case ets:insert_new(Clients, #cstate { pid = Pid, - callback = undefined, - opened = 0, - obtained = 0, - blocked = false, - pending_closes = 0 }) of - true -> _MRef = erlang:monitor(process, Pid), - ok; - false -> ok - end. - - -%% To increase the number of file descriptors: on Windows set ERL_MAX_PORTS -%% environment variable, on Linux set `ulimit -n`. -ulimit() -> - case proplists:get_value(max_fds, erlang:system_info(check_io)) of - MaxFds when is_integer(MaxFds) andalso MaxFds > 1 -> - case os:type() of - {win32, _OsName} -> - %% On Windows max_fds is twice the number of open files: - %% https://github.com/yrashk/erlang/blob/e1282325ed75e52a98d5/erts/emulator/sys/win32/sys.c#L2459-2466 - MaxFds div 2; - _Any -> - %% For other operating systems trust Erlang. - MaxFds - end; - _ -> - unknown - end. diff --git a/src/gatherer.erl b/src/gatherer.erl deleted file mode 100644 index aa43e9a9..00000000 --- a/src/gatherer.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gatherer). - --behaviour(gen_server2). - --export([start_link/0, stop/1, fork/1, finish/1, in/2, out/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(stop/1 :: (pid()) -> 'ok'). --spec(fork/1 :: (pid()) -> 'ok'). --spec(finish/1 :: (pid()) -> 'ok'). --spec(in/2 :: (pid(), any()) -> 'ok'). --spec(out/1 :: (pid()) -> {'value', any()} | 'empty'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - --record(gstate, { forks, values, blocked }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link(?MODULE, [], [{timeout, infinity}]). - -stop(Pid) -> - gen_server2:call(Pid, stop, infinity). - -fork(Pid) -> - gen_server2:call(Pid, fork, infinity). - -finish(Pid) -> - gen_server2:cast(Pid, finish). - -in(Pid, Value) -> - gen_server2:cast(Pid, {in, Value}). - -out(Pid) -> - gen_server2:call(Pid, out, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #gstate { forks = 0, values = queue:new(), blocked = queue:new() }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; - -handle_call(fork, _From, State = #gstate { forks = Forks }) -> - {reply, ok, State #gstate { forks = Forks + 1 }, hibernate}; - -handle_call(out, From, State = #gstate { forks = Forks, - values = Values, - blocked = Blocked }) -> - case queue:out(Values) of - {empty, _} -> - case Forks of - 0 -> {reply, empty, State, hibernate}; - _ -> {noreply, - State #gstate { blocked = queue:in(From, Blocked) }, - hibernate} - end; - {{value, _Value} = V, NewValues} -> - {reply, V, State #gstate { values = NewValues }, hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast(finish, State = #gstate { forks = Forks, blocked = Blocked }) -> - NewForks = Forks - 1, - NewBlocked = case NewForks of - 0 -> [gen_server2:reply(From, empty) || - From <- queue:to_list(Blocked)], - queue:new(); - _ -> Blocked - end, - {noreply, State #gstate { forks = NewForks, blocked = NewBlocked }, - hibernate}; - -handle_cast({in, Value}, State = #gstate { values = Values, - blocked = Blocked }) -> - {noreply, case queue:out(Blocked) of - {empty, _} -> - State #gstate { values = queue:in(Value, Values) }; - {{value, From}, NewBlocked} -> - gen_server2:reply(From, {value, Value}), - State #gstate { blocked = NewBlocked } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. diff --git a/src/gen_server2.erl b/src/gen_server2.erl deleted file mode 100644 index 35258139..00000000 --- a/src/gen_server2.erl +++ /dev/null @@ -1,1181 +0,0 @@ -%% This file is a copy of gen_server.erl from the R13B-1 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is gen_server2 -%% -%% 2) more efficient handling of selective receives in callbacks -%% gen_server2 processes drain their message queue into an internal -%% buffer before invoking any callback module functions. Messages are -%% dequeued from the buffer for processing. Thus the effective message -%% queue of a gen_server2 process is the concatenation of the internal -%% buffer and the real message queue. -%% As a result of the draining, any selective receive invoked inside a -%% callback is less likely to have to scan a large message queue. -%% -%% 3) gen_server2:cast is guaranteed to be order-preserving -%% The original code could reorder messages when communicating with a -%% process on a remote node that was not currently connected. -%% -%% 4) The callback module can optionally implement prioritise_call/3, -%% prioritise_cast/2 and prioritise_info/2. These functions take -%% Message, From and State or just Message and State and return a -%% single integer representing the priority attached to the message. -%% Messages with higher priorities are processed before requests with -%% lower priorities. The default priority is 0. -%% -%% 5) The callback module can optionally implement -%% handle_pre_hibernate/1 and handle_post_hibernate/1. These will be -%% called immediately prior to and post hibernation, respectively. If -%% handle_pre_hibernate returns {hibernate, NewState} then the process -%% will hibernate. If the module does not implement -%% handle_pre_hibernate/1 then the default action is to hibernate. -%% -%% 6) init can return a 4th arg, {backoff, InitialTimeout, -%% MinimumTimeout, DesiredHibernatePeriod} (all in -%% milliseconds). Then, on all callbacks which can return a timeout -%% (including init), timeout can be 'hibernate'. When this is the -%% case, the current timeout value will be used (initially, the -%% InitialTimeout supplied from init). After this timeout has -%% occurred, hibernation will occur as normal. Upon awaking, a new -%% current timeout value will be calculated. -%% -%% The purpose is that the gen_server2 takes care of adjusting the -%% current timeout value such that the process will increase the -%% timeout value repeatedly if it is unable to sleep for the -%% DesiredHibernatePeriod. If it is able to sleep for the -%% DesiredHibernatePeriod it will decrease the current timeout down to -%% the MinimumTimeout, so that the process is put to sleep sooner (and -%% hopefully stays asleep for longer). In short, should a process -%% using this receive a burst of messages, it should not hibernate -%% between those messages, but as the messages become less frequent, -%% the process will not only hibernate, it will do so sooner after -%% each message. -%% -%% When using this backoff mechanism, normal timeout values (i.e. not -%% 'hibernate') can still be used, and if they are used then the -%% handle_info(timeout, State) will be called as normal. In this case, -%% returning 'hibernate' from handle_info(timeout, State) will not -%% hibernate the process immediately, as it would if backoff wasn't -%% being used. Instead it'll wait for the current timeout as described -%% above. -%% -%% 7) The callback module can return from any of the handle_* -%% functions, a {become, Module, State} triple, or a {become, Module, -%% State, Timeout} quadruple. This allows the gen_server to -%% dynamically change the callback module. The State is the new state -%% which will be passed into any of the callback functions in the new -%% module. Note there is no form also encompassing a reply, thus if -%% you wish to reply in handle_call/3 and change the callback module, -%% you need to use gen_server2:reply/2 to issue the reply manually. -%% -%% 8) The callback module can optionally implement -%% format_message_queue/2 which is the equivalent of format_status/2 -%% but where the second argument is specifically the priority_queue -%% which contains the prioritised message_queue. - -%% All modifications are (C) 2009-2011 VMware, Inc. - -%% ``The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved via the world wide web at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. -%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings -%% AB. All Rights Reserved.'' -%% -%% $Id$ -%% --module(gen_server2). - -%%% --------------------------------------------------- -%%% -%%% The idea behind THIS server is that the user module -%%% provides (different) functions to handle different -%%% kind of inputs. -%%% If the Parent process terminates the Module:terminate/2 -%%% function is called. -%%% -%%% The user module should export: -%%% -%%% init(Args) -%%% ==> {ok, State} -%%% {ok, State, Timeout} -%%% {ok, State, Timeout, Backoff} -%%% ignore -%%% {stop, Reason} -%%% -%%% handle_call(Msg, {From, Tag}, State) -%%% -%%% ==> {reply, Reply, State} -%%% {reply, Reply, State, Timeout} -%%% {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, Reply, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_cast(Msg, State) -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_info(Info, State) Info is e.g. {'EXIT', P, R}, {nodedown, N}, ... -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% terminate(Reason, State) Let the user module clean up -%%% always called when server terminates -%%% -%%% ==> ok -%%% -%%% handle_pre_hibernate(State) -%%% -%%% ==> {hibernate, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% handle_post_hibernate(State) -%%% -%%% ==> {noreply, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% The work flow (of the server) can be described as follows: -%%% -%%% User module Generic -%%% ----------- ------- -%%% start -----> start -%%% init <----- . -%%% -%%% loop -%%% handle_call <----- . -%%% -----> reply -%%% -%%% handle_cast <----- . -%%% -%%% handle_info <----- . -%%% -%%% terminate <----- . -%%% -%%% -----> reply -%%% -%%% -%%% --------------------------------------------------- - -%% API --export([start/3, start/4, - start_link/3, start_link/4, - call/2, call/3, - cast/2, reply/2, - abcast/2, abcast/3, - multi_call/2, multi_call/3, multi_call/4, - enter_loop/3, enter_loop/4, enter_loop/5, enter_loop/6, wake_hib/1]). - --export([behaviour_info/1]). - -%% System exports --export([system_continue/3, - system_terminate/4, - system_code_change/4, - format_status/2]). - -%% Internal exports --export([init_it/6]). - --import(error_logger, [format/2]). - -%% State record --record(gs2_state, {parent, name, state, mod, time, - timeout_state, queue, debug, prioritise_call, - prioritise_cast, prioritise_info}). - -%%%========================================================================= -%%% Specs. These exist only to shut up dialyzer's warnings -%%%========================================================================= - --ifdef(use_specs). - --type(gs2_state() :: #gs2_state{}). - --spec(handle_common_termination/3 :: - (any(), atom(), gs2_state()) -> no_return()). --spec(hibernate/1 :: (gs2_state()) -> no_return()). --spec(pre_hibernate/1 :: (gs2_state()) -> no_return()). --spec(system_terminate/4 :: (_, _, _, gs2_state()) -> no_return()). - --endif. - -%%%========================================================================= -%%% API -%%%========================================================================= - -behaviour_info(callbacks) -> - [{init,1},{handle_call,3},{handle_cast,2},{handle_info,2}, - {terminate,2},{code_change,3}]; -behaviour_info(_Other) -> - undefined. - -%%% ----------------------------------------------------------------- -%%% Starts a generic server. -%%% start(Mod, Args, Options) -%%% start(Name, Mod, Args, Options) -%%% start_link(Mod, Args, Options) -%%% start_link(Name, Mod, Args, Options) where: -%%% Name ::= {local, atom()} | {global, atom()} -%%% Mod ::= atom(), callback module implementing the 'real' server -%%% Args ::= term(), init arguments (to Mod:init/1) -%%% Options ::= [{timeout, Timeout} | {debug, [Flag]}] -%%% Flag ::= trace | log | {logfile, File} | statistics | debug -%%% (debug == log && statistics) -%%% Returns: {ok, Pid} | -%%% {error, {already_started, Pid}} | -%%% {error, Reason} -%%% ----------------------------------------------------------------- -start(Mod, Args, Options) -> - gen:start(?MODULE, nolink, Mod, Args, Options). - -start(Name, Mod, Args, Options) -> - gen:start(?MODULE, nolink, Name, Mod, Args, Options). - -start_link(Mod, Args, Options) -> - gen:start(?MODULE, link, Mod, Args, Options). - -start_link(Name, Mod, Args, Options) -> - gen:start(?MODULE, link, Name, Mod, Args, Options). - - -%% ----------------------------------------------------------------- -%% Make a call to a generic server. -%% If the server is located at another node, that node will -%% be monitored. -%% If the client is trapping exits and is linked server termination -%% is handled here (? Shall we do that here (or rely on timeouts) ?). -%% ----------------------------------------------------------------- -call(Name, Request) -> - case catch gen:call(Name, '$gen_call', Request) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request]}}) - end. - -call(Name, Request, Timeout) -> - case catch gen:call(Name, '$gen_call', Request, Timeout) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request, Timeout]}}) - end. - -%% ----------------------------------------------------------------- -%% Make a cast to a generic server. -%% ----------------------------------------------------------------- -cast({global,Name}, Request) -> - catch global:send(Name, cast_msg(Request)), - ok; -cast({Name,Node}=Dest, Request) when is_atom(Name), is_atom(Node) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_atom(Dest) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_pid(Dest) -> - do_cast(Dest, Request). - -do_cast(Dest, Request) -> - do_send(Dest, cast_msg(Request)), - ok. - -cast_msg(Request) -> {'$gen_cast',Request}. - -%% ----------------------------------------------------------------- -%% Send a reply to the client. -%% ----------------------------------------------------------------- -reply({To, Tag}, Reply) -> - catch To ! {Tag, Reply}. - -%% ----------------------------------------------------------------- -%% Asyncronous broadcast, returns nothing, it's just send'n pray -%% ----------------------------------------------------------------- -abcast(Name, Request) when is_atom(Name) -> - do_abcast([node() | nodes()], Name, cast_msg(Request)). - -abcast(Nodes, Name, Request) when is_list(Nodes), is_atom(Name) -> - do_abcast(Nodes, Name, cast_msg(Request)). - -do_abcast([Node|Nodes], Name, Msg) when is_atom(Node) -> - do_send({Name,Node},Msg), - do_abcast(Nodes, Name, Msg); -do_abcast([], _,_) -> abcast. - -%%% ----------------------------------------------------------------- -%%% Make a call to servers at several nodes. -%%% Returns: {[Replies],[BadNodes]} -%%% A Timeout can be given -%%% -%%% A middleman process is used in case late answers arrives after -%%% the timeout. If they would be allowed to glog the callers message -%%% queue, it would probably become confused. Late answers will -%%% now arrive to the terminated middleman and so be discarded. -%%% ----------------------------------------------------------------- -multi_call(Name, Req) - when is_atom(Name) -> - do_multi_call([node() | nodes()], Name, Req, infinity). - -multi_call(Nodes, Name, Req) - when is_list(Nodes), is_atom(Name) -> - do_multi_call(Nodes, Name, Req, infinity). - -multi_call(Nodes, Name, Req, infinity) -> - do_multi_call(Nodes, Name, Req, infinity); -multi_call(Nodes, Name, Req, Timeout) - when is_list(Nodes), is_atom(Name), is_integer(Timeout), Timeout >= 0 -> - do_multi_call(Nodes, Name, Req, Timeout). - - -%%----------------------------------------------------------------- -%% enter_loop(Mod, Options, State, , , ) ->_ -%% -%% Description: Makes an existing process into a gen_server. -%% The calling process will enter the gen_server receive -%% loop and become a gen_server process. -%% The process *must* have been started using one of the -%% start functions in proc_lib, see proc_lib(3). -%% The user is responsible for any initialization of the -%% process, including registering a name for it. -%%----------------------------------------------------------------- -enter_loop(Mod, Options, State) -> - enter_loop(Mod, Options, State, self(), infinity, undefined). - -enter_loop(Mod, Options, State, Backoff = {backoff, _, _ , _}) -> - enter_loop(Mod, Options, State, self(), infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName = {_, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, undefined); - -enter_loop(Mod, Options, State, Timeout) -> - enter_loop(Mod, Options, State, self(), Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Backoff = {backoff, _, _, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName, Timeout) -> - enter_loop(Mod, Options, State, ServerName, Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Timeout, Backoff) -> - Name = get_proc_name(ServerName), - Parent = get_parent(), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - Backoff1 = extend_backoff(Backoff), - loop(find_prioritisers( - #gs2_state { parent = Parent, name = Name, state = State, - mod = Mod, time = Timeout, timeout_state = Backoff1, - queue = Queue, debug = Debug })). - -%%%======================================================================== -%%% Gen-callback functions -%%%======================================================================== - -%%% --------------------------------------------------- -%%% Initiate the new process. -%%% Register the name using the Rfunc function -%%% Calls the Mod:init/Args function. -%%% Finally an acknowledge is sent to Parent and the main -%%% loop is entered. -%%% --------------------------------------------------- -init_it(Starter, self, Name, Mod, Args, Options) -> - init_it(Starter, self(), Name, Mod, Args, Options); -init_it(Starter, Parent, Name0, Mod, Args, Options) -> - Name = name(Name0), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - GS2State = find_prioritisers( - #gs2_state { parent = Parent, - name = Name, - mod = Mod, - queue = Queue, - debug = Debug }), - case catch Mod:init(Args) of - {ok, State} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = infinity, - timeout_state = undefined }); - {ok, State, Timeout} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = undefined }); - {ok, State, Timeout, Backoff = {backoff, _, _, _}} -> - Backoff1 = extend_backoff(Backoff), - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = Backoff1 }); - {stop, Reason} -> - %% For consistency, we must make sure that the - %% registered name (if any) is unregistered before - %% the parent process is notified about the failure. - %% (Otherwise, the parent process could get - %% an 'already_started' error if it immediately - %% tried starting the process again.) - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - ignore -> - unregister_name(Name0), - proc_lib:init_ack(Starter, ignore), - exit(normal); - {'EXIT', Reason} -> - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - Else -> - Error = {bad_return_value, Else}, - proc_lib:init_ack(Starter, {error, Error}), - exit(Error) - end. - -name({local,Name}) -> Name; -name({global,Name}) -> Name; -%% name(Pid) when is_pid(Pid) -> Pid; -%% when R12 goes away, drop the line beneath and uncomment the line above -name(Name) -> Name. - -unregister_name({local,Name}) -> - _ = (catch unregister(Name)); -unregister_name({global,Name}) -> - _ = global:unregister_name(Name); -unregister_name(Pid) when is_pid(Pid) -> - Pid; -%% Under R12 let's just ignore it, as we have a single term as Name. -%% On R13 it will never get here, as we get tuple with 'local/global' atom. -unregister_name(_Name) -> ok. - -extend_backoff(undefined) -> - undefined; -extend_backoff({backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod}) -> - {backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod, now()}. - -%%%======================================================================== -%%% Internal functions -%%%======================================================================== -%%% --------------------------------------------------- -%%% The MAIN loop. -%%% --------------------------------------------------- -loop(GS2State = #gs2_state { time = hibernate, - timeout_state = undefined }) -> - pre_hibernate(GS2State); -loop(GS2State) -> - process_next_msg(drain(GS2State)). - -drain(GS2State) -> - receive - Input -> drain(in(Input, GS2State)) - after 0 -> GS2State - end. - -process_next_msg(GS2State = #gs2_state { time = Time, - timeout_state = TimeoutState, - queue = Queue }) -> - case priority_queue:out(Queue) of - {{value, Msg}, Queue1} -> - process_msg(Msg, GS2State #gs2_state { queue = Queue1 }); - {empty, Queue1} -> - {Time1, HibOnTimeout} - = case {Time, TimeoutState} of - {hibernate, {backoff, Current, _Min, _Desired, _RSt}} -> - {Current, true}; - {hibernate, _} -> - %% wake_hib/7 will set Time to hibernate. If - %% we were woken and didn't receive a msg - %% then we will get here and need a sensible - %% value for Time1, otherwise we crash. - %% R13B1 always waits infinitely when waking - %% from hibernation, so that's what we do - %% here too. - {infinity, false}; - _ -> {Time, false} - end, - receive - Input -> - %% Time could be 'hibernate' here, so *don't* call loop - process_next_msg( - drain(in(Input, GS2State #gs2_state { queue = Queue1 }))) - after Time1 -> - case HibOnTimeout of - true -> - pre_hibernate( - GS2State #gs2_state { queue = Queue1 }); - false -> - process_msg(timeout, - GS2State #gs2_state { queue = Queue1 }) - end - end - end. - -wake_hib(GS2State = #gs2_state { timeout_state = TS }) -> - TimeoutState1 = case TS of - undefined -> - undefined; - {SleptAt, TimeoutState} -> - adjust_timeout_state(SleptAt, now(), TimeoutState) - end, - post_hibernate( - drain(GS2State #gs2_state { timeout_state = TimeoutState1 })). - -hibernate(GS2State = #gs2_state { timeout_state = TimeoutState }) -> - TS = case TimeoutState of - undefined -> undefined; - {backoff, _, _, _, _} -> {now(), TimeoutState} - end, - proc_lib:hibernate(?MODULE, wake_hib, - [GS2State #gs2_state { timeout_state = TS }]). - -pre_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_pre_hibernate, 1) of - true -> - case catch Mod:handle_pre_hibernate(State) of - {hibernate, NState} -> - hibernate(GS2State #gs2_state { state = NState } ); - Reply -> - handle_common_termination(Reply, pre_hibernate, GS2State) - end; - false -> - hibernate(GS2State) - end. - -post_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_post_hibernate, 1) of - true -> - case catch Mod:handle_post_hibernate(State) of - {noreply, NState} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = infinity }); - {noreply, NState, Time} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = Time }); - Reply -> - handle_common_termination(Reply, post_hibernate, GS2State) - end; - false -> - %% use hibernate here, not infinity. This matches - %% R13B. The key is that we should be able to get through - %% to process_msg calling sys:handle_system_msg with Time - %% still set to hibernate, iff that msg is the very msg - %% that woke us up (or the first msg we receive after - %% waking up). - process_next_msg(GS2State #gs2_state { time = hibernate }) - end. - -adjust_timeout_state(SleptAt, AwokeAt, {backoff, CurrentTO, MinimumTO, - DesiredHibPeriod, RandomState}) -> - NapLengthMicros = timer:now_diff(AwokeAt, SleptAt), - CurrentMicros = CurrentTO * 1000, - MinimumMicros = MinimumTO * 1000, - DesiredHibMicros = DesiredHibPeriod * 1000, - GapBetweenMessagesMicros = NapLengthMicros + CurrentMicros, - Base = - %% If enough time has passed between the last two messages then we - %% should consider sleeping sooner. Otherwise stay awake longer. - case GapBetweenMessagesMicros > (MinimumMicros + DesiredHibMicros) of - true -> lists:max([MinimumTO, CurrentTO div 2]); - false -> CurrentTO - end, - {Extra, RandomState1} = random:uniform_s(Base, RandomState), - CurrentTO1 = Base + Extra, - {backoff, CurrentTO1, MinimumTO, DesiredHibPeriod, RandomState1}. - -in({'$gen_cast', Msg} = Input, - GS2State = #gs2_state { prioritise_cast = PC }) -> - in(Input, PC(Msg, GS2State), GS2State); -in({'$gen_call', From, Msg} = Input, - GS2State = #gs2_state { prioritise_call = PC }) -> - in(Input, PC(Msg, From, GS2State), GS2State); -in({'EXIT', Parent, _R} = Input, GS2State = #gs2_state { parent = Parent }) -> - in(Input, infinity, GS2State); -in({system, _From, _Req} = Input, GS2State) -> - in(Input, infinity, GS2State); -in(Input, GS2State = #gs2_state { prioritise_info = PI }) -> - in(Input, PI(Input, GS2State), GS2State). - -in(Input, Priority, GS2State = #gs2_state { queue = Queue }) -> - GS2State # gs2_state { queue = priority_queue:in(Input, Priority, Queue) }. - -process_msg({system, From, Req}, - GS2State = #gs2_state { parent = Parent, debug = Debug }) -> - sys:handle_system_msg(Req, From, Parent, ?MODULE, Debug, GS2State); -process_msg({'EXIT', Parent, Reason} = Msg, - GS2State = #gs2_state { parent = Parent }) -> - %% gen_server puts Hib on the end as the 7th arg, but that version - %% of the fun seems not to be documented so leaving out for now. - terminate(Reason, Msg, GS2State); -process_msg(Msg, GS2State = #gs2_state { debug = [] }) -> - handle_msg(Msg, GS2State); -process_msg(Msg, GS2State = #gs2_state { name = Name, debug = Debug }) -> - Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, {in, Msg}), - handle_msg(Msg, GS2State #gs2_state { debug = Debug1 }). - -%%% --------------------------------------------------- -%%% Send/recive functions -%%% --------------------------------------------------- -do_send(Dest, Msg) -> - catch erlang:send(Dest, Msg). - -do_multi_call(Nodes, Name, Req, infinity) -> - Tag = make_ref(), - Monitors = send_nodes(Nodes, Name, Tag, Req), - rec_nodes(Tag, Monitors, Name, undefined); -do_multi_call(Nodes, Name, Req, Timeout) -> - Tag = make_ref(), - Caller = self(), - Receiver = - spawn( - fun () -> - %% Middleman process. Should be unsensitive to regular - %% exit signals. The sychronization is needed in case - %% the receiver would exit before the caller started - %% the monitor. - process_flag(trap_exit, true), - Mref = erlang:monitor(process, Caller), - receive - {Caller,Tag} -> - Monitors = send_nodes(Nodes, Name, Tag, Req), - TimerId = erlang:start_timer(Timeout, self(), ok), - Result = rec_nodes(Tag, Monitors, Name, TimerId), - exit({self(),Tag,Result}); - {'DOWN',Mref,_,_,_} -> - %% Caller died before sending us the go-ahead. - %% Give up silently. - exit(normal) - end - end), - Mref = erlang:monitor(process, Receiver), - Receiver ! {self(),Tag}, - receive - {'DOWN',Mref,_,_,{Receiver,Tag,Result}} -> - Result; - {'DOWN',Mref,_,_,Reason} -> - %% The middleman code failed. Or someone did - %% exit(_, kill) on the middleman process => Reason==killed - exit(Reason) - end. - -send_nodes(Nodes, Name, Tag, Req) -> - send_nodes(Nodes, Name, Tag, Req, []). - -send_nodes([Node|Tail], Name, Tag, Req, Monitors) - when is_atom(Node) -> - Monitor = start_monitor(Node, Name), - %% Handle non-existing names in rec_nodes. - catch {Name, Node} ! {'$gen_call', {self(), {Tag, Node}}, Req}, - send_nodes(Tail, Name, Tag, Req, [Monitor | Monitors]); -send_nodes([_Node|Tail], Name, Tag, Req, Monitors) -> - %% Skip non-atom Node - send_nodes(Tail, Name, Tag, Req, Monitors); -send_nodes([], _Name, _Tag, _Req, Monitors) -> - Monitors. - -%% Against old nodes: -%% If no reply has been delivered within 2 secs. (per node) check that -%% the server really exists and wait for ever for the answer. -%% -%% Against contemporary nodes: -%% Wait for reply, server 'DOWN', or timeout from TimerId. - -rec_nodes(Tag, Nodes, Name, TimerId) -> - rec_nodes(Tag, Nodes, Name, [], [], 2000, TimerId). - -rec_nodes(Tag, [{N,R}|Tail], Name, Badnodes, Replies, Time, TimerId ) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, Time, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], Time, TimerId); - {timeout, TimerId, _} -> - unmonitor(R), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes(Tag, [N|Tail], Name, Badnodes, Replies, Time, TimerId) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, 2000, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], 2000, TimerId); - {timeout, TimerId, _} -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N | Badnodes], Replies) - after Time -> - case rpc:call(N, erlang, whereis, [Name]) of - Pid when is_pid(Pid) -> % It exists try again. - rec_nodes(Tag, [N|Tail], Name, Badnodes, - Replies, infinity, TimerId); - _ -> % badnode - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], - Replies, 2000, TimerId) - end - end; -rec_nodes(_, [], _, Badnodes, Replies, _, TimerId) -> - case catch erlang:cancel_timer(TimerId) of - false -> % It has already sent it's message - receive - {timeout, TimerId, _} -> ok - after 0 -> - ok - end; - _ -> % Timer was cancelled, or TimerId was 'undefined' - ok - end, - {Replies, Badnodes}. - -%% Collect all replies that already have arrived -rec_nodes_rest(Tag, [{N,R}|Tail], Name, Badnodes, Replies) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(Tag, [N|Tail], Name, Badnodes, Replies) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(_Tag, [], _Name, Badnodes, Replies) -> - {Replies, Badnodes}. - - -%%% --------------------------------------------------- -%%% Monitor functions -%%% --------------------------------------------------- - -start_monitor(Node, Name) when is_atom(Node), is_atom(Name) -> - if node() =:= nonode@nohost, Node =/= nonode@nohost -> - Ref = make_ref(), - self() ! {'DOWN', Ref, process, {Name, Node}, noconnection}, - {Node, Ref}; - true -> - case catch erlang:monitor(process, {Name, Node}) of - {'EXIT', _} -> - %% Remote node is R6 - monitor_node(Node, true), - Node; - Ref when is_reference(Ref) -> - {Node, Ref} - end - end. - -%% Cancels a monitor started with Ref=erlang:monitor(_, _). -unmonitor(Ref) when is_reference(Ref) -> - erlang:demonitor(Ref), - receive - {'DOWN', Ref, _, _, _} -> - true - after 0 -> - true - end. - -%%% --------------------------------------------------- -%%% Message handling functions -%%% --------------------------------------------------- - -dispatch({'$gen_cast', Msg}, Mod, State) -> - Mod:handle_cast(Msg, State); -dispatch(Info, Mod, State) -> - Mod:handle_info(Info, State). - -common_reply(_Name, From, Reply, _NState, [] = _Debug) -> - reply(From, Reply), - []; -common_reply(Name, From, Reply, NState, Debug) -> - reply(Name, From, Reply, NState, Debug). - -common_debug([] = _Debug, _Func, _Info, _Event) -> - []; -common_debug(Debug, Func, Info, Event) -> - sys:handle_debug(Debug, Func, Info, Event). - -handle_msg({'$gen_call', From, Msg}, GS2State = #gs2_state { mod = Mod, - state = State, - name = Name, - debug = Debug }) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {reply, Reply, NState, Time1} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1}); - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = infinity, - debug = Debug1}); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = Time1, - debug = Debug1}); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Msg, - GS2State #gs2_state { state = NState })), - reply(Name, From, Reply, NState, Debug), - exit(R); - Other -> - handle_common_reply(Other, Msg, GS2State) - end; -handle_msg(Msg, GS2State = #gs2_state { mod = Mod, state = State }) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, Msg, GS2State). - -handle_common_reply(Reply, Msg, GS2State = #gs2_state { name = Name, - debug = Debug}) -> - case Reply of - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1 }); - {become, Mod, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {become, Mod, NState}), - loop(find_prioritisers( - GS2State #gs2_state { mod = Mod, - state = NState, - time = infinity, - debug = Debug1 })); - {become, Mod, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {become, Mod, NState}), - loop(find_prioritisers( - GS2State #gs2_state { mod = Mod, - state = NState, - time = Time1, - debug = Debug1 })); - _ -> - handle_common_termination(Reply, Msg, GS2State) - end. - -handle_common_termination(Reply, Msg, GS2State) -> - case Reply of - {stop, Reason, NState} -> - terminate(Reason, Msg, GS2State #gs2_state { state = NState }); - {'EXIT', What} -> - terminate(What, Msg, GS2State); - _ -> - terminate({bad_return_value, Reply}, Msg, GS2State) - end. - -reply(Name, {To, Tag}, Reply, State, Debug) -> - reply({To, Tag}, Reply), - sys:handle_debug( - Debug, fun print_event/3, Name, {out, Reply, To, State}). - - -%%----------------------------------------------------------------- -%% Callback functions for system messages handling. -%%----------------------------------------------------------------- -system_continue(Parent, Debug, GS2State) -> - loop(GS2State #gs2_state { parent = Parent, debug = Debug }). - -system_terminate(Reason, _Parent, Debug, GS2State) -> - terminate(Reason, [], GS2State #gs2_state { debug = Debug }). - -system_code_change(GS2State = #gs2_state { mod = Mod, - state = State }, - _Module, OldVsn, Extra) -> - case catch Mod:code_change(OldVsn, State, Extra) of - {ok, NewState} -> - NewGS2State = find_prioritisers( - GS2State #gs2_state { state = NewState }), - {ok, [NewGS2State]}; - Else -> - Else - end. - -%%----------------------------------------------------------------- -%% Format debug messages. Print them as the call-back module sees -%% them, not as the real erlang messages. Use trace for that. -%%----------------------------------------------------------------- -print_event(Dev, {in, Msg}, Name) -> - case Msg of - {'$gen_call', {From, _Tag}, Call} -> - io:format(Dev, "*DBG* ~p got call ~p from ~w~n", - [Name, Call, From]); - {'$gen_cast', Cast} -> - io:format(Dev, "*DBG* ~p got cast ~p~n", - [Name, Cast]); - _ -> - io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg]) - end; -print_event(Dev, {out, Msg, To, State}, Name) -> - io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n", - [Name, Msg, To, State]); -print_event(Dev, {noreply, State}, Name) -> - io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]); -print_event(Dev, Event, Name) -> - io:format(Dev, "*DBG* ~p dbg ~p~n", [Name, Event]). - - -%%% --------------------------------------------------- -%%% Terminate the server. -%%% --------------------------------------------------- - -terminate(Reason, Msg, #gs2_state { name = Name, - mod = Mod, - state = State, - debug = Debug }) -> - case catch Mod:terminate(Reason, State) of - {'EXIT', R} -> - error_info(R, Reason, Name, Msg, State, Debug), - exit(R); - _ -> - case Reason of - normal -> - exit(normal); - shutdown -> - exit(shutdown); - {shutdown,_}=Shutdown -> - exit(Shutdown); - _ -> - error_info(Reason, undefined, Name, Msg, State, Debug), - exit(Reason) - end - end. - -error_info(_Reason, _RootCause, application_controller, _Msg, _State, _Debug) -> - %% OTP-5811 Don't send an error report if it's the system process - %% application_controller which is terminating - let init take care - %% of it instead - ok; -error_info(Reason, RootCause, Name, Msg, State, Debug) -> - Reason1 = error_reason(Reason), - Fmt = - "** Generic server ~p terminating~n" - "** Last message in was ~p~n" - "** When Server state == ~p~n" - "** Reason for termination == ~n** ~p~n", - case RootCause of - undefined -> format(Fmt, [Name, Msg, State, Reason1]); - _ -> format(Fmt ++ "** In 'terminate' callback " - "with reason ==~n** ~p~n", - [Name, Msg, State, Reason1, - error_reason(RootCause)]) - end, - sys:print_log(Debug), - ok. - -error_reason({undef,[{M,F,A}|MFAs]} = Reason) -> - case code:is_loaded(M) of - false -> {'module could not be loaded',[{M,F,A}|MFAs]}; - _ -> case erlang:function_exported(M, F, length(A)) of - true -> Reason; - false -> {'function not exported',[{M,F,A}|MFAs]} - end - end; -error_reason(Reason) -> - Reason. - -%%% --------------------------------------------------- -%%% Misc. functions. -%%% --------------------------------------------------- - -opt(Op, [{Op, Value}|_]) -> - {ok, Value}; -opt(Op, [_|Options]) -> - opt(Op, Options); -opt(_, []) -> - false. - -debug_options(Name, Opts) -> - case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) - end. - -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). - -dbg_opts(Name, Opts) -> - case catch sys:debug_options(Opts) of - {'EXIT',_} -> - format("~p: ignoring erroneous debug options - ~p~n", - [Name, Opts]), - []; - Dbg -> - Dbg - end. - -get_proc_name(Pid) when is_pid(Pid) -> - Pid; -get_proc_name({local, Name}) -> - case process_info(self(), registered_name) of - {registered_name, Name} -> - Name; - {registered_name, _Name} -> - exit(process_not_registered); - [] -> - exit(process_not_registered) - end; -get_proc_name({global, Name}) -> - case global:safe_whereis_name(Name) of - undefined -> - exit(process_not_registered_globally); - Pid when Pid =:= self() -> - Name; - _Pid -> - exit(process_not_registered_globally) - end. - -get_parent() -> - case get('$ancestors') of - [Parent | _] when is_pid(Parent)-> - Parent; - [Parent | _] when is_atom(Parent)-> - name_to_pid(Parent); - _ -> - exit(process_was_not_started_by_proc_lib) - end. - -name_to_pid(Name) -> - case whereis(Name) of - undefined -> - case global:safe_whereis_name(Name) of - undefined -> - exit(could_not_find_registerd_name); - Pid -> - Pid - end; - Pid -> - Pid - end. - -find_prioritisers(GS2State = #gs2_state { mod = Mod }) -> - PrioriCall = function_exported_or_default( - Mod, 'prioritise_call', 3, - fun (_Msg, _From, _State) -> 0 end), - PrioriCast = function_exported_or_default(Mod, 'prioritise_cast', 2, - fun (_Msg, _State) -> 0 end), - PrioriInfo = function_exported_or_default(Mod, 'prioritise_info', 2, - fun (_Msg, _State) -> 0 end), - GS2State #gs2_state { prioritise_call = PrioriCall, - prioritise_cast = PrioriCast, - prioritise_info = PrioriInfo }. - -function_exported_or_default(Mod, Fun, Arity, Default) -> - case erlang:function_exported(Mod, Fun, Arity) of - true -> case Arity of - 2 -> fun (Msg, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end; - 3 -> fun (Msg, From, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, From, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end - end; - false -> Default - end. - -%%----------------------------------------------------------------- -%% Status information -%%----------------------------------------------------------------- -format_status(Opt, StatusData) -> - [PDict, SysState, Parent, Debug, - #gs2_state{name = Name, state = State, mod = Mod, queue = Queue}] = - StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), - Log = sys:get_debug(log, Debug, []), - Specfic = callback(Mod, format_status, [Opt, [PDict, State]], - fun () -> [{data, [{"State", State}]}] end), - Messages = callback(Mod, format_message_queue, [Opt, Queue], - fun () -> priority_queue:to_list(Queue) end), - [{header, Header}, - {data, [{"Status", SysState}, - {"Parent", Parent}, - {"Logged events", Log}, - {"Queued messages", Messages}]} | - Specfic]. - -callback(Mod, FunName, Args, DefaultThunk) -> - case erlang:function_exported(Mod, FunName, length(Args)) of - true -> case catch apply(Mod, FunName, Args) of - {'EXIT', _} -> DefaultThunk(); - Success -> Success - end; - false -> DefaultThunk() - end. diff --git a/src/gm.erl b/src/gm.erl deleted file mode 100644 index 8b7dc70c..00000000 --- a/src/gm.erl +++ /dev/null @@ -1,1379 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm). - -%% Guaranteed Multicast -%% ==================== -%% -%% This module provides the ability to create named groups of -%% processes to which members can be dynamically added and removed, -%% and for messages to be broadcast within the group that are -%% guaranteed to reach all members of the group during the lifetime of -%% the message. The lifetime of a message is defined as being, at a -%% minimum, the time from which the message is first sent to any -%% member of the group, up until the time at which it is known by the -%% member who published the message that the message has reached all -%% group members. -%% -%% The guarantee given is that provided a message, once sent, makes it -%% to members who do not all leave the group, the message will -%% continue to propagate to all group members. -%% -%% Another way of stating the guarantee is that if member P publishes -%% messages m and m', then for all members P', if P' is a member of -%% the group prior to the publication of m, and P' receives m', then -%% P' will receive m. -%% -%% Note that only local-ordering is enforced: i.e. if member P sends -%% message m and then message m', then for-all members P', if P' -%% receives m and m', then they will receive m' after m. Causality -%% ordering is _not_ enforced. I.e. if member P receives message m -%% and as a result publishes message m', there is no guarantee that -%% other members P' will receive m before m'. -%% -%% -%% API Use -%% ------- -%% -%% Mnesia must be started. Use the idempotent create_tables/0 function -%% to create the tables required. -%% -%% start_link/3 -%% Provide the group name, the callback module name, and any arguments -%% you wish to be passed into the callback module's functions. The -%% joined/2 function will be called when we have joined the group, -%% with the arguments passed to start_link and a list of the current -%% members of the group. See the comments in behaviour_info/1 below -%% for further details of the callback functions. -%% -%% leave/1 -%% Provide the Pid. Removes the Pid from the group. The callback -%% terminate/2 function will be called. -%% -%% broadcast/2 -%% Provide the Pid and a Message. The message will be sent to all -%% members of the group as per the guarantees given above. This is a -%% cast and the function call will return immediately. There is no -%% guarantee that the message will reach any member of the group. -%% -%% confirmed_broadcast/2 -%% Provide the Pid and a Message. As per broadcast/2 except that this -%% is a call, not a cast, and only returns 'ok' once the Message has -%% reached every member of the group. Do not call -%% confirmed_broadcast/2 directly from the callback module otherwise -%% you will deadlock the entire group. -%% -%% group_members/1 -%% Provide the Pid. Returns a list of the current group members. -%% -%% -%% Implementation Overview -%% ----------------------- -%% -%% One possible means of implementation would be a fan-out from the -%% sender to every member of the group. This would require that the -%% group is fully connected, and, in the event that the original -%% sender of the message disappears from the group before the message -%% has made it to every member of the group, raises questions as to -%% who is responsible for sending on the message to new group members. -%% In particular, the issue is with [ Pid ! Msg || Pid <- Members ] - -%% if the sender dies part way through, who is responsible for -%% ensuring that the remaining Members receive the Msg? In the event -%% that within the group, messages sent are broadcast from a subset of -%% the members, the fan-out arrangement has the potential to -%% substantially impact the CPU and network workload of such members, -%% as such members would have to accommodate the cost of sending each -%% message to every group member. -%% -%% Instead, if the members of the group are arranged in a chain, then -%% it becomes easier to reason about who within the group has received -%% each message and who has not. It eases issues of responsibility: in -%% the event of a group member disappearing, the nearest upstream -%% member of the chain is responsible for ensuring that messages -%% continue to propagate down the chain. It also results in equal -%% distribution of sending and receiving workload, even if all -%% messages are being sent from just a single group member. This -%% configuration has the further advantage that it is not necessary -%% for every group member to know of every other group member, and -%% even that a group member does not have to be accessible from all -%% other group members. -%% -%% Performance is kept high by permitting pipelining and all -%% communication between joined group members is asynchronous. In the -%% chain A -> B -> C -> D, if A sends a message to the group, it will -%% not directly contact C or D. However, it must know that D receives -%% the message (in addition to B and C) before it can consider the -%% message fully sent. A simplistic implementation would require that -%% D replies to C, C replies to B and B then replies to A. This would -%% result in a propagation delay of twice the length of the chain. It -%% would also require, in the event of the failure of C, that D knows -%% to directly contact B and issue the necessary replies. Instead, the -%% chain forms a ring: D sends the message on to A: D does not -%% distinguish A as the sender, merely as the next member (downstream) -%% within the chain (which has now become a ring). When A receives -%% from D messages that A sent, it knows that all members have -%% received the message. However, the message is not dead yet: if C -%% died as B was sending to C, then B would need to detect the death -%% of C and forward the message on to D instead: thus every node has -%% to remember every message published until it is told that it can -%% forget about the message. This is essential not just for dealing -%% with failure of members, but also for the addition of new members. -%% -%% Thus once A receives the message back again, it then sends to B an -%% acknowledgement for the message, indicating that B can now forget -%% about the message. B does so, and forwards the ack to C. C forgets -%% the message, and forwards the ack to D, which forgets the message -%% and finally forwards the ack back to A. At this point, A takes no -%% further action: the message and its acknowledgement have made it to -%% every member of the group. The message is now dead, and any new -%% member joining the group at this point will not receive the -%% message. -%% -%% We therefore have two roles: -%% -%% 1. The sender, who upon receiving their own messages back, must -%% then send out acknowledgements, and upon receiving their own -%% acknowledgements back perform no further action. -%% -%% 2. The other group members who upon receiving messages and -%% acknowledgements must update their own internal state accordingly -%% (the sending member must also do this in order to be able to -%% accommodate failures), and forwards messages on to their downstream -%% neighbours. -%% -%% -%% Implementation: It gets trickier -%% -------------------------------- -%% -%% Chain A -> B -> C -> D -%% -%% A publishes a message which B receives. A now dies. B and D will -%% detect the death of A, and will link up, thus the chain is now B -> -%% C -> D. B forwards A's message on to C, who forwards it to D, who -%% forwards it to B. Thus B is now responsible for A's messages - both -%% publications and acknowledgements that were in flight at the point -%% at which A died. Even worse is that this is transitive: after B -%% forwards A's message to C, B dies as well. Now C is not only -%% responsible for B's in-flight messages, but is also responsible for -%% A's in-flight messages. -%% -%% Lemma 1: A member can only determine which dead members they have -%% inherited responsibility for if there is a total ordering on the -%% conflicting additions and subtractions of members from the group. -%% -%% Consider the simultaneous death of B and addition of B' that -%% transitions a chain from A -> B -> C to A -> B' -> C. Either B' or -%% C is responsible for in-flight messages from B. It is easy to -%% ensure that at least one of them thinks they have inherited B, but -%% if we do not ensure that exactly one of them inherits B, then we -%% could have B' converting publishes to acks, which then will crash C -%% as C does not believe it has issued acks for those messages. -%% -%% More complex scenarios are easy to concoct: A -> B -> C -> D -> E -%% becoming A -> C' -> E. Who has inherited which of B, C and D? -%% -%% However, for non-conflicting membership changes, only a partial -%% ordering is required. For example, A -> B -> C becoming A -> A' -> -%% B. The addition of A', between A and B can have no conflicts with -%% the death of C: it is clear that A has inherited C's messages. -%% -%% For ease of implementation, we adopt the simple solution, of -%% imposing a total order on all membership changes. -%% -%% On the death of a member, it is ensured the dead member's -%% neighbours become aware of the death, and the upstream neighbour -%% now sends to its new downstream neighbour its state, including the -%% messages pending acknowledgement. The downstream neighbour can then -%% use this to calculate which publishes and acknowledgements it has -%% missed out on, due to the death of its old upstream. Thus the -%% downstream can catch up, and continues the propagation of messages -%% through the group. -%% -%% Lemma 2: When a member is joining, it must synchronously -%% communicate with its upstream member in order to receive its -%% starting state atomically with its addition to the group. -%% -%% New members must start with the same state as their nearest -%% upstream neighbour. This ensures that it is not surprised by -%% acknowledgements they are sent, and that should their downstream -%% neighbour die, they are able to send the correct state to their new -%% downstream neighbour to ensure it can catch up. Thus in the -%% transition A -> B -> C becomes A -> A' -> B -> C becomes A -> A' -> -%% C, A' must start with the state of A, so that it can send C the -%% correct state when B dies, allowing C to detect any missed -%% messages. -%% -%% If A' starts by adding itself to the group membership, A could then -%% die, without A' having received the necessary state from A. This -%% would leave A' responsible for in-flight messages from A, but -%% having the least knowledge of all, of those messages. Thus A' must -%% start by synchronously calling A, which then immediately sends A' -%% back its state. A then adds A' to the group. If A dies at this -%% point then A' will be able to see this (as A' will fail to appear -%% in the group membership), and thus A' will ignore the state it -%% receives from A, and will simply repeat the process, trying to now -%% join downstream from some other member. This ensures that should -%% the upstream die as soon as the new member has been joined, the new -%% member is guaranteed to receive the correct state, allowing it to -%% correctly process messages inherited due to the death of its -%% upstream neighbour. -%% -%% The canonical definition of the group membership is held by a -%% distributed database. Whilst this allows the total ordering of -%% changes to be achieved, it is nevertheless undesirable to have to -%% query this database for the current view, upon receiving each -%% message. Instead, we wish for members to be able to cache a view of -%% the group membership, which then requires a cache invalidation -%% mechanism. Each member maintains its own view of the group -%% membership. Thus when the group's membership changes, members may -%% need to become aware of such changes in order to be able to -%% accurately process messages they receive. Because of the -%% requirement of a total ordering of conflicting membership changes, -%% it is not possible to use the guaranteed broadcast mechanism to -%% communicate these changes: to achieve the necessary ordering, it -%% would be necessary for such messages to be published by exactly one -%% member, which can not be guaranteed given that such a member could -%% die. -%% -%% The total ordering we enforce on membership changes gives rise to a -%% view version number: every change to the membership creates a -%% different view, and the total ordering permits a simple -%% monotonically increasing view version number. -%% -%% Lemma 3: If a message is sent from a member that holds view version -%% N, it can be correctly processed by any member receiving the -%% message with a view version >= N. -%% -%% Initially, let us suppose that each view contains the ordering of -%% every member that was ever part of the group. Dead members are -%% marked as such. Thus we have a ring of members, some of which are -%% dead, and are thus inherited by the nearest alive downstream -%% member. -%% -%% In the chain A -> B -> C, all three members initially have view -%% version 1, which reflects reality. B publishes a message, which is -%% forward by C to A. B now dies, which A notices very quickly. Thus A -%% updates the view, creating version 2. It now forwards B's -%% publication, sending that message to its new downstream neighbour, -%% C. This happens before C is aware of the death of B. C must become -%% aware of the view change before it interprets the message its -%% received, otherwise it will fail to learn of the death of B, and -%% thus will not realise it has inherited B's messages (and will -%% likely crash). -%% -%% Thus very simply, we have that each subsequent view contains more -%% information than the preceding view. -%% -%% However, to avoid the views growing indefinitely, we need to be -%% able to delete members which have died _and_ for which no messages -%% are in-flight. This requires that upon inheriting a dead member, we -%% know the last publication sent by the dead member (this is easy: we -%% inherit a member because we are the nearest downstream member which -%% implies that we know at least as much than everyone else about the -%% publications of the dead member), and we know the earliest message -%% for which the acknowledgement is still in flight. -%% -%% In the chain A -> B -> C, when B dies, A will send to C its state -%% (as C is the new downstream from A), allowing C to calculate which -%% messages it has missed out on (described above). At this point, C -%% also inherits B's messages. If that state from A also includes the -%% last message published by B for which an acknowledgement has been -%% seen, then C knows exactly which further acknowledgements it must -%% receive (also including issuing acknowledgements for publications -%% still in-flight that it receives), after which it is known there -%% are no more messages in flight for B, thus all evidence that B was -%% ever part of the group can be safely removed from the canonical -%% group membership. -%% -%% Thus, for every message that a member sends, it includes with that -%% message its view version. When a member receives a message it will -%% update its view from the canonical copy, should its view be older -%% than the view version included in the message it has received. -%% -%% The state held by each member therefore includes the messages from -%% each publisher pending acknowledgement, the last publication seen -%% from that publisher, and the last acknowledgement from that -%% publisher. In the case of the member's own publications or -%% inherited members, this last acknowledgement seen state indicates -%% the last acknowledgement retired, rather than sent. -%% -%% -%% Proof sketch -%% ------------ -%% -%% We need to prove that with the provided operational semantics, we -%% can never reach a state that is not well formed from a well-formed -%% starting state. -%% -%% Operational semantics (small step): straight-forward message -%% sending, process monitoring, state updates. -%% -%% Well formed state: dead members inherited by exactly one non-dead -%% member; for every entry in anyone's pending-acks, either (the -%% publication of the message is in-flight downstream from the member -%% and upstream from the publisher) or (the acknowledgement of the -%% message is in-flight downstream from the publisher and upstream -%% from the member). -%% -%% Proof by induction on the applicable operational semantics. -%% -%% -%% Related work -%% ------------ -%% -%% The ring configuration and double traversal of messages around the -%% ring is similar (though developed independently) to the LCR -%% protocol by [Levy 2008]. However, LCR differs in several -%% ways. Firstly, by using vector clocks, it enforces a total order of -%% message delivery, which is unnecessary for our purposes. More -%% significantly, it is built on top of a "group communication system" -%% which performs the group management functions, taking -%% responsibility away from the protocol as to how to cope with safely -%% adding and removing members. When membership changes do occur, the -%% protocol stipulates that every member must perform communication -%% with every other member of the group, to ensure all outstanding -%% deliveries complete, before the entire group transitions to the new -%% view. This, in total, requires two sets of all-to-all synchronous -%% communications. -%% -%% This is not only rather inefficient, but also does not explain what -%% happens upon the failure of a member during this process. It does -%% though entirely avoid the need for inheritance of responsibility of -%% dead members that our protocol incorporates. -%% -%% In [Marandi et al 2010], a Paxos-based protocol is described. This -%% work explicitly focuses on the efficiency of communication. LCR -%% (and our protocol too) are more efficient, but at the cost of -%% higher latency. The Ring-Paxos protocol is itself built on top of -%% IP-multicast, which rules it out for many applications where -%% point-to-point communication is all that can be required. They also -%% have an excellent related work section which I really ought to -%% read... -%% -%% -%% [Levy 2008] The Complexity of Reliable Distributed Storage, 2008. -%% [Marandi et al 2010] Ring Paxos: A High-Throughput Atomic Broadcast -%% Protocol - - --behaviour(gen_server2). - --export([create_tables/0, start_link/3, leave/1, broadcast/2, - confirmed_broadcast/2, group_members/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3, prioritise_cast/2, prioritise_info/2]). - --export([behaviour_info/1]). - --export([table_definitions/0, flush/1]). - --define(GROUP_TABLE, gm_group). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(BROADCAST_TIMER, 25). --define(SETS, ordsets). --define(DICT, orddict). - --record(state, - { self, - left, - right, - group_name, - module, - view, - pub_count, - members_state, - callback_args, - confirms, - broadcast_buffer, - broadcast_timer - }). - --record(gm_group, { name, version, members }). - --record(view_member, { id, aliases, left, right }). - --record(member, { pending_ack, last_pub, last_ack }). - --define(TABLE, {?GROUP_TABLE, [{record_name, gm_group}, - {attributes, record_info(fields, gm_group)}]}). --define(TABLE_MATCH, {match, #gm_group { _ = '_' }}). - --define(TAG, '$gm'). - --ifdef(use_specs). - --export_type([group_name/0]). - --type(group_name() :: any()). - --spec(create_tables/0 :: () -> 'ok'). --spec(start_link/3 :: (group_name(), atom(), any()) -> - {'ok', pid()} | {'error', any()}). --spec(leave/1 :: (pid()) -> 'ok'). --spec(broadcast/2 :: (pid(), any()) -> 'ok'). --spec(confirmed_broadcast/2 :: (pid(), any()) -> 'ok'). --spec(group_members/1 :: (pid()) -> [pid()]). - --endif. - -behaviour_info(callbacks) -> - [ - %% The joined, members_changed and handle_msg callbacks can all - %% return any of the following terms: - %% - %% 'ok' - the callback function returns normally - %% - %% {'stop', Reason} - the callback indicates the member should - %% stop with reason Reason and should leave the group. - %% - %% {'become', Module, Args} - the callback indicates that the - %% callback module should be changed to Module and that the - %% callback functions should now be passed the arguments - %% Args. This allows the callback module to be dynamically - %% changed. - - %% Called when we've successfully joined the group. Supplied with - %% Args provided in start_link, plus current group members. - {joined, 2}, - - %% Supplied with Args provided in start_link, the list of new - %% members and the list of members previously known to us that - %% have since died. Note that if a member joins and dies very - %% quickly, it's possible that we will never see that member - %% appear in either births or deaths. However we are guaranteed - %% that (1) we will see a member joining either in the births - %% here, or in the members passed to joined/2 before receiving - %% any messages from it; and (2) we will not see members die that - %% we have not seen born (or supplied in the members to - %% joined/2). - {members_changed, 3}, - - %% Supplied with Args provided in start_link, the sender, and the - %% message. This does get called for messages injected by this - %% member, however, in such cases, there is no special - %% significance of this invocation: it does not indicate that the - %% message has made it to any other members, let alone all other - %% members. - {handle_msg, 3}, - - %% Called on gm member termination as per rules in gen_server, - %% with the Args provided in start_link plus the termination - %% Reason. - {terminate, 2} - ]; -behaviour_info(_Other) -> - undefined. - -create_tables() -> - create_tables([?TABLE]). - -create_tables([]) -> - ok; -create_tables([{Table, Attributes} | Tables]) -> - case mnesia:create_table(Table, Attributes) of - {atomic, ok} -> create_tables(Tables); - {aborted, {already_exists, gm_group}} -> create_tables(Tables); - Err -> Err - end. - -table_definitions() -> - {Name, Attributes} = ?TABLE, - [{Name, [?TABLE_MATCH | Attributes]}]. - -start_link(GroupName, Module, Args) -> - gen_server2:start_link(?MODULE, [GroupName, Module, Args], []). - -leave(Server) -> - gen_server2:cast(Server, leave). - -broadcast(Server, Msg) -> - gen_server2:cast(Server, {broadcast, Msg}). - -confirmed_broadcast(Server, Msg) -> - gen_server2:call(Server, {confirmed_broadcast, Msg}, infinity). - -group_members(Server) -> - gen_server2:call(Server, group_members, infinity). - -flush(Server) -> - gen_server2:cast(Server, flush). - - -init([GroupName, Module, Args]) -> - {MegaSecs, Secs, MicroSecs} = now(), - random:seed(MegaSecs, Secs, MicroSecs), - gen_server2:cast(self(), join), - Self = self(), - {ok, #state { self = Self, - left = {Self, undefined}, - right = {Self, undefined}, - group_name = GroupName, - module = Module, - view = undefined, - pub_count = 0, - members_state = undefined, - callback_args = Args, - confirms = queue:new(), - broadcast_buffer = [], - broadcast_timer = undefined }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - - -handle_call({confirmed_broadcast, _Msg}, _From, - State = #state { members_state = undefined }) -> - reply(not_joined, State); - -handle_call({confirmed_broadcast, Msg}, _From, - State = #state { self = Self, - right = {Self, undefined}, - module = Module, - callback_args = Args }) -> - handle_callback_result({Module:handle_msg(Args, Self, Msg), ok, State}); - -handle_call({confirmed_broadcast, Msg}, From, State) -> - internal_broadcast(Msg, From, State); - -handle_call(group_members, _From, - State = #state { members_state = undefined }) -> - reply(not_joined, State); - -handle_call(group_members, _From, State = #state { view = View }) -> - reply(alive_view_members(View), State); - -handle_call({add_on_right, _NewMember}, _From, - State = #state { members_state = undefined }) -> - reply(not_ready, State); - -handle_call({add_on_right, NewMember}, _From, - State = #state { self = Self, - group_name = GroupName, - view = View, - members_state = MembersState, - module = Module, - callback_args = Args }) -> - Group = record_new_member_in_group( - GroupName, Self, NewMember, - fun (Group1) -> - View1 = group_to_view(Group1), - ok = send_right(NewMember, View1, - {catchup, Self, prepare_members_state( - MembersState)}) - end), - View2 = group_to_view(Group), - State1 = check_neighbours(State #state { view = View2 }), - Result = callback_view_changed(Args, Module, View, View2), - handle_callback_result({Result, {ok, Group}, State1}). - - -handle_cast({?TAG, ReqVer, Msg}, - State = #state { view = View, - group_name = GroupName, - module = Module, - callback_args = Args }) -> - {Result, State1} = - case needs_view_update(ReqVer, View) of - true -> - View1 = group_to_view(read_group(GroupName)), - {callback_view_changed(Args, Module, View, View1), - check_neighbours(State #state { view = View1 })}; - false -> - {ok, State} - end, - handle_callback_result( - if_callback_success( - Result, fun handle_msg_true/3, fun handle_msg_false/3, Msg, State1)); - -handle_cast({broadcast, _Msg}, State = #state { members_state = undefined }) -> - noreply(State); - -handle_cast({broadcast, Msg}, - State = #state { self = Self, - right = {Self, undefined}, - module = Module, - callback_args = Args }) -> - handle_callback_result({Module:handle_msg(Args, Self, Msg), State}); - -handle_cast({broadcast, Msg}, State) -> - internal_broadcast(Msg, none, State); - -handle_cast(join, State = #state { self = Self, - group_name = GroupName, - members_state = undefined, - module = Module, - callback_args = Args }) -> - View = join_group(Self, GroupName), - MembersState = - case alive_view_members(View) of - [Self] -> blank_member_state(); - _ -> undefined - end, - State1 = check_neighbours(State #state { view = View, - members_state = MembersState }), - handle_callback_result( - {Module:joined(Args, all_known_members(View)), State1}); - -handle_cast(leave, State) -> - {stop, normal, State}; - -handle_cast(flush, State) -> - noreply( - flush_broadcast_buffer(State #state { broadcast_timer = undefined })). - - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #state { self = Self, - left = Left, - right = Right, - group_name = GroupName, - view = View, - module = Module, - callback_args = Args, - confirms = Confirms }) -> - Member = case {Left, Right} of - {{Member1, MRef}, _} -> Member1; - {_, {Member1, MRef}} -> Member1; - _ -> undefined - end, - case Member of - undefined -> - noreply(State); - _ -> - View1 = - group_to_view(record_dead_member_in_group(Member, GroupName)), - State1 = State #state { view = View1 }, - {Result, State2} = - case alive_view_members(View1) of - [Self] -> - maybe_erase_aliases( - State1 #state { - members_state = blank_member_state(), - confirms = purge_confirms(Confirms) }); - _ -> - %% here we won't be pointing out any deaths: - %% the concern is that there maybe births - %% which we'd otherwise miss. - {callback_view_changed(Args, Module, View, View1), - State1} - end, - handle_callback_result({Result, check_neighbours(State2)}) - end. - - -terminate(Reason, State = #state { module = Module, - callback_args = Args }) -> - flush_broadcast_buffer(State), - Module:terminate(Args, Reason). - - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -prioritise_cast(flush, _State) -> 1; -prioritise_cast(_ , _State) -> 0. - -prioritise_info({'DOWN', _MRef, process, _Pid, _Reason}, _State) -> 1; -prioritise_info(_ , _State) -> 0. - - -handle_msg(check_neighbours, State) -> - %% no-op - it's already been done by the calling handle_cast - {ok, State}; - -handle_msg({catchup, Left, MembersStateLeft}, - State = #state { self = Self, - left = {Left, _MRefL}, - right = {Right, _MRefR}, - view = View, - members_state = undefined }) -> - ok = send_right(Right, View, {catchup, Self, MembersStateLeft}), - MembersStateLeft1 = build_members_state(MembersStateLeft), - {ok, State #state { members_state = MembersStateLeft1 }}; - -handle_msg({catchup, Left, MembersStateLeft}, - State = #state { self = Self, - left = {Left, _MRefL}, - view = View, - members_state = MembersState }) - when MembersState =/= undefined -> - MembersStateLeft1 = build_members_state(MembersStateLeft), - AllMembers = lists:usort(?DICT:fetch_keys(MembersState) ++ - ?DICT:fetch_keys(MembersStateLeft1)), - {MembersState1, Activity} = - lists:foldl( - fun (Id, MembersStateActivity) -> - #member { pending_ack = PALeft, last_ack = LA } = - find_member_or_blank(Id, MembersStateLeft1), - with_member_acc( - fun (#member { pending_ack = PA } = Member, Activity1) -> - case is_member_alias(Id, Self, View) of - true -> - {_AcksInFlight, Pubs, _PA1} = - find_prefix_common_suffix(PALeft, PA), - {Member #member { last_ack = LA }, - activity_cons(Id, pubs_from_queue(Pubs), - [], Activity1)}; - false -> - {Acks, _Common, Pubs} = - find_prefix_common_suffix(PA, PALeft), - {Member, - activity_cons(Id, pubs_from_queue(Pubs), - acks_from_queue(Acks), - Activity1)} - end - end, Id, MembersStateActivity) - end, {MembersState, activity_nil()}, AllMembers), - handle_msg({activity, Left, activity_finalise(Activity)}, - State #state { members_state = MembersState1 }); - -handle_msg({catchup, _NotLeft, _MembersState}, State) -> - {ok, State}; - -handle_msg({activity, Left, Activity}, - State = #state { self = Self, - left = {Left, _MRefL}, - view = View, - members_state = MembersState, - confirms = Confirms }) - when MembersState =/= undefined -> - {MembersState1, {Confirms1, Activity1}} = - lists:foldl( - fun ({Id, Pubs, Acks}, MembersStateConfirmsActivity) -> - with_member_acc( - fun (Member = #member { pending_ack = PA, - last_pub = LP, - last_ack = LA }, - {Confirms2, Activity2}) -> - case is_member_alias(Id, Self, View) of - true -> - {ToAck, PA1} = - find_common(queue_from_pubs(Pubs), PA, - queue:new()), - LA1 = last_ack(Acks, LA), - AckNums = acks_from_queue(ToAck), - Confirms3 = maybe_confirm( - Self, Id, Confirms2, AckNums), - {Member #member { pending_ack = PA1, - last_ack = LA1 }, - {Confirms3, - activity_cons( - Id, [], AckNums, Activity2)}}; - false -> - PA1 = apply_acks(Acks, join_pubs(PA, Pubs)), - LA1 = last_ack(Acks, LA), - LP1 = last_pub(Pubs, LP), - {Member #member { pending_ack = PA1, - last_pub = LP1, - last_ack = LA1 }, - {Confirms2, - activity_cons(Id, Pubs, Acks, Activity2)}} - end - end, Id, MembersStateConfirmsActivity) - end, {MembersState, {Confirms, activity_nil()}}, Activity), - State1 = State #state { members_state = MembersState1, - confirms = Confirms1 }, - Activity3 = activity_finalise(Activity1), - {Result, State2} = maybe_erase_aliases(State1), - ok = maybe_send_activity(Activity3, State2), - if_callback_success( - Result, fun activity_true/3, fun activity_false/3, Activity3, State2); - -handle_msg({activity, _NotLeft, _Activity}, State) -> - {ok, State}. - - -noreply(State) -> - {noreply, ensure_broadcast_timer(State), hibernate}. - -reply(Reply, State) -> - {reply, Reply, ensure_broadcast_timer(State), hibernate}. - -ensure_broadcast_timer(State = #state { broadcast_buffer = [], - broadcast_timer = undefined }) -> - State; -ensure_broadcast_timer(State = #state { broadcast_buffer = [], - broadcast_timer = TRef }) -> - timer:cancel(TRef), - State #state { broadcast_timer = undefined }; -ensure_broadcast_timer(State = #state { broadcast_timer = undefined }) -> - {ok, TRef} = timer:apply_after(?BROADCAST_TIMER, ?MODULE, flush, [self()]), - State #state { broadcast_timer = TRef }; -ensure_broadcast_timer(State) -> - State. - -internal_broadcast(Msg, From, State = #state { self = Self, - pub_count = PubCount, - module = Module, - confirms = Confirms, - callback_args = Args, - broadcast_buffer = Buffer }) -> - Result = Module:handle_msg(Args, Self, Msg), - Buffer1 = [{PubCount, Msg} | Buffer], - Confirms1 = case From of - none -> Confirms; - _ -> queue:in({PubCount, From}, Confirms) - end, - State1 = State #state { pub_count = PubCount + 1, - confirms = Confirms1, - broadcast_buffer = Buffer1 }, - case From =/= none of - true -> - handle_callback_result({Result, flush_broadcast_buffer(State1)}); - false -> - handle_callback_result( - {Result, State1 #state { broadcast_buffer = Buffer1 }}) - end. - -flush_broadcast_buffer(State = #state { broadcast_buffer = [] }) -> - State; -flush_broadcast_buffer(State = #state { self = Self, - members_state = MembersState, - broadcast_buffer = Buffer }) -> - Pubs = lists:reverse(Buffer), - Activity = activity_cons(Self, Pubs, [], activity_nil()), - ok = maybe_send_activity(activity_finalise(Activity), State), - MembersState1 = with_member( - fun (Member = #member { pending_ack = PA }) -> - PA1 = queue:join(PA, queue:from_list(Pubs)), - Member #member { pending_ack = PA1 } - end, Self, MembersState), - State #state { members_state = MembersState1, - broadcast_buffer = [] }. - - -%% --------------------------------------------------------------------------- -%% View construction and inspection -%% --------------------------------------------------------------------------- - -needs_view_update(ReqVer, {Ver, _View}) -> - Ver < ReqVer. - -view_version({Ver, _View}) -> - Ver. - -is_member_alive({dead, _Member}) -> false; -is_member_alive(_) -> true. - -is_member_alias(Self, Self, _View) -> - true; -is_member_alias(Member, Self, View) -> - ?SETS:is_element(Member, - ((fetch_view_member(Self, View)) #view_member.aliases)). - -dead_member_id({dead, Member}) -> Member. - -store_view_member(VMember = #view_member { id = Id }, {Ver, View}) -> - {Ver, ?DICT:store(Id, VMember, View)}. - -with_view_member(Fun, View, Id) -> - store_view_member(Fun(fetch_view_member(Id, View)), View). - -fetch_view_member(Id, {_Ver, View}) -> - ?DICT:fetch(Id, View). - -find_view_member(Id, {_Ver, View}) -> - ?DICT:find(Id, View). - -blank_view(Ver) -> - {Ver, ?DICT:new()}. - -alive_view_members({_Ver, View}) -> - ?DICT:fetch_keys(View). - -all_known_members({_Ver, View}) -> - ?DICT:fold( - fun (Member, #view_member { aliases = Aliases }, Acc) -> - ?SETS:to_list(Aliases) ++ [Member | Acc] - end, [], View). - -group_to_view(#gm_group { members = Members, version = Ver }) -> - Alive = lists:filter(fun is_member_alive/1, Members), - [_|_] = Alive, %% ASSERTION - can't have all dead members - add_aliases(link_view(Alive ++ Alive ++ Alive, blank_view(Ver)), Members). - -link_view([Left, Middle, Right | Rest], View) -> - case find_view_member(Middle, View) of - error -> - link_view( - [Middle, Right | Rest], - store_view_member(#view_member { id = Middle, - aliases = ?SETS:new(), - left = Left, - right = Right }, View)); - {ok, _} -> - View - end; -link_view(_, View) -> - View. - -add_aliases(View, Members) -> - Members1 = ensure_alive_suffix(Members), - {EmptyDeadSet, View1} = - lists:foldl( - fun (Member, {DeadAcc, ViewAcc}) -> - case is_member_alive(Member) of - true -> - {?SETS:new(), - with_view_member( - fun (VMember = - #view_member { aliases = Aliases }) -> - VMember #view_member { - aliases = ?SETS:union(Aliases, DeadAcc) } - end, ViewAcc, Member)}; - false -> - {?SETS:add_element(dead_member_id(Member), DeadAcc), - ViewAcc} - end - end, {?SETS:new(), View}, Members1), - 0 = ?SETS:size(EmptyDeadSet), %% ASSERTION - View1. - -ensure_alive_suffix(Members) -> - queue:to_list(ensure_alive_suffix1(queue:from_list(Members))). - -ensure_alive_suffix1(MembersQ) -> - {{value, Member}, MembersQ1} = queue:out_r(MembersQ), - case is_member_alive(Member) of - true -> MembersQ; - false -> ensure_alive_suffix1(queue:in_r(Member, MembersQ1)) - end. - - -%% --------------------------------------------------------------------------- -%% View modification -%% --------------------------------------------------------------------------- - -join_group(Self, GroupName) -> - join_group(Self, GroupName, read_group(GroupName)). - -join_group(Self, GroupName, {error, not_found}) -> - join_group(Self, GroupName, prune_or_create_group(Self, GroupName)); -join_group(Self, _GroupName, #gm_group { members = [Self] } = Group) -> - group_to_view(Group); -join_group(Self, GroupName, #gm_group { members = Members } = Group) -> - case lists:member(Self, Members) of - true -> - group_to_view(Group); - false -> - case lists:filter(fun is_member_alive/1, Members) of - [] -> - join_group(Self, GroupName, - prune_or_create_group(Self, GroupName)); - Alive -> - Left = lists:nth(random:uniform(length(Alive)), Alive), - Handler = - fun () -> - join_group( - Self, GroupName, - record_dead_member_in_group(Left, GroupName)) - end, - try - case gen_server2:call( - Left, {add_on_right, Self}, infinity) of - {ok, Group1} -> group_to_view(Group1); - not_ready -> join_group(Self, GroupName) - end - catch - exit:{R, _} - when R =:= noproc; R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} - when R =:= nodedown; R =:= shutdown -> - Handler() - end - end - end. - -read_group(GroupName) -> - case mnesia:dirty_read(?GROUP_TABLE, GroupName) of - [] -> {error, not_found}; - [Group] -> Group - end. - -prune_or_create_group(Self, GroupName) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> GroupNew = #gm_group { name = GroupName, - members = [Self], - version = 0 }, - case mnesia:read({?GROUP_TABLE, GroupName}) of - [] -> - mnesia:write(GroupNew), - GroupNew; - [Group1 = #gm_group { members = Members }] -> - case lists:any(fun is_member_alive/1, Members) of - true -> Group1; - false -> mnesia:write(GroupNew), - GroupNew - end - end - end), - Group. - -record_dead_member_in_group(Member, GroupName) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> [Group1 = #gm_group { members = Members, version = Ver }] = - mnesia:read({?GROUP_TABLE, GroupName}), - case lists:splitwith( - fun (Member1) -> Member1 =/= Member end, Members) of - {_Members1, []} -> %% not found - already recorded dead - Group1; - {Members1, [Member | Members2]} -> - Members3 = Members1 ++ [{dead, Member} | Members2], - Group2 = Group1 #gm_group { members = Members3, - version = Ver + 1 }, - mnesia:write(Group2), - Group2 - end - end), - Group. - -record_new_member_in_group(GroupName, Left, NewMember, Fun) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> - [#gm_group { members = Members, version = Ver } = Group1] = - mnesia:read({?GROUP_TABLE, GroupName}), - {Prefix, [Left | Suffix]} = - lists:splitwith(fun (M) -> M =/= Left end, Members), - Members1 = Prefix ++ [Left, NewMember | Suffix], - Group2 = Group1 #gm_group { members = Members1, - version = Ver + 1 }, - ok = Fun(Group2), - mnesia:write(Group2), - Group2 - end), - Group. - -erase_members_in_group(Members, GroupName) -> - DeadMembers = [{dead, Id} || Id <- Members], - {atomic, Group} = - mnesia:sync_transaction( - fun () -> - [Group1 = #gm_group { members = [_|_] = Members1, - version = Ver }] = - mnesia:read({?GROUP_TABLE, GroupName}), - case Members1 -- DeadMembers of - Members1 -> Group1; - Members2 -> Group2 = - Group1 #gm_group { members = Members2, - version = Ver + 1 }, - mnesia:write(Group2), - Group2 - end - end), - Group. - -maybe_erase_aliases(State = #state { self = Self, - group_name = GroupName, - view = View, - members_state = MembersState, - module = Module, - callback_args = Args }) -> - #view_member { aliases = Aliases } = fetch_view_member(Self, View), - {Erasable, MembersState1} - = ?SETS:fold( - fun (Id, {ErasableAcc, MembersStateAcc} = Acc) -> - #member { last_pub = LP, last_ack = LA } = - find_member_or_blank(Id, MembersState), - case can_erase_view_member(Self, Id, LA, LP) of - true -> {[Id | ErasableAcc], - erase_member(Id, MembersStateAcc)}; - false -> Acc - end - end, {[], MembersState}, Aliases), - State1 = State #state { members_state = MembersState1 }, - case Erasable of - [] -> {ok, State1}; - _ -> View1 = group_to_view( - erase_members_in_group(Erasable, GroupName)), - {callback_view_changed(Args, Module, View, View1), - State1 #state { view = View1 }} - end. - -can_erase_view_member(Self, Self, _LA, _LP) -> false; -can_erase_view_member(_Self, _Id, N, N) -> true; -can_erase_view_member(_Self, _Id, _LA, _LP) -> false. - - -%% --------------------------------------------------------------------------- -%% View monitoring and maintanence -%% --------------------------------------------------------------------------- - -ensure_neighbour(_Ver, Self, {Self, undefined}, Self) -> - {Self, undefined}; -ensure_neighbour(Ver, Self, {Self, undefined}, RealNeighbour) -> - ok = gen_server2:cast(RealNeighbour, {?TAG, Ver, check_neighbours}), - {RealNeighbour, maybe_monitor(RealNeighbour, Self)}; -ensure_neighbour(_Ver, _Self, {RealNeighbour, MRef}, RealNeighbour) -> - {RealNeighbour, MRef}; -ensure_neighbour(Ver, Self, {RealNeighbour, MRef}, Neighbour) -> - true = erlang:demonitor(MRef), - Msg = {?TAG, Ver, check_neighbours}, - ok = gen_server2:cast(RealNeighbour, Msg), - ok = case Neighbour of - Self -> ok; - _ -> gen_server2:cast(Neighbour, Msg) - end, - {Neighbour, maybe_monitor(Neighbour, Self)}. - -maybe_monitor(Self, Self) -> - undefined; -maybe_monitor(Other, _Self) -> - erlang:monitor(process, Other). - -check_neighbours(State = #state { self = Self, - left = Left, - right = Right, - view = View, - broadcast_buffer = Buffer }) -> - #view_member { left = VLeft, right = VRight } - = fetch_view_member(Self, View), - Ver = view_version(View), - Left1 = ensure_neighbour(Ver, Self, Left, VLeft), - Right1 = ensure_neighbour(Ver, Self, Right, VRight), - Buffer1 = case Right1 of - {Self, undefined} -> []; - _ -> Buffer - end, - State1 = State #state { left = Left1, right = Right1, - broadcast_buffer = Buffer1 }, - ok = maybe_send_catchup(Right, State1), - State1. - -maybe_send_catchup(Right, #state { right = Right }) -> - ok; -maybe_send_catchup(_Right, #state { self = Self, - right = {Self, undefined} }) -> - ok; -maybe_send_catchup(_Right, #state { members_state = undefined }) -> - ok; -maybe_send_catchup(_Right, #state { self = Self, - right = {Right, _MRef}, - view = View, - members_state = MembersState }) -> - send_right(Right, View, - {catchup, Self, prepare_members_state(MembersState)}). - - -%% --------------------------------------------------------------------------- -%% Catch_up delta detection -%% --------------------------------------------------------------------------- - -find_prefix_common_suffix(A, B) -> - {Prefix, A1} = find_prefix(A, B, queue:new()), - {Common, Suffix} = find_common(A1, B, queue:new()), - {Prefix, Common, Suffix}. - -%% Returns the elements of A that occur before the first element of B, -%% plus the remainder of A. -find_prefix(A, B, Prefix) -> - case {queue:out(A), queue:out(B)} of - {{{value, Val}, _A1}, {{value, Val}, _B1}} -> - {Prefix, A}; - {{empty, A1}, {{value, _A}, _B1}} -> - {Prefix, A1}; - {{{value, {NumA, _MsgA} = Val}, A1}, - {{value, {NumB, _MsgB}}, _B1}} when NumA < NumB -> - find_prefix(A1, B, queue:in(Val, Prefix)); - {_, {empty, _B1}} -> - {A, Prefix} %% Prefix well be empty here - end. - -%% A should be a prefix of B. Returns the commonality plus the -%% remainder of B. -find_common(A, B, Common) -> - case {queue:out(A), queue:out(B)} of - {{{value, Val}, A1}, {{value, Val}, B1}} -> - find_common(A1, B1, queue:in(Val, Common)); - {{empty, _A}, _} -> - {Common, B} - end. - - -%% --------------------------------------------------------------------------- -%% Members helpers -%% --------------------------------------------------------------------------- - -with_member(Fun, Id, MembersState) -> - store_member( - Id, Fun(find_member_or_blank(Id, MembersState)), MembersState). - -with_member_acc(Fun, Id, {MembersState, Acc}) -> - {MemberState, Acc1} = Fun(find_member_or_blank(Id, MembersState), Acc), - {store_member(Id, MemberState, MembersState), Acc1}. - -find_member_or_blank(Id, MembersState) -> - case ?DICT:find(Id, MembersState) of - {ok, Result} -> Result; - error -> blank_member() - end. - -erase_member(Id, MembersState) -> - ?DICT:erase(Id, MembersState). - -blank_member() -> - #member { pending_ack = queue:new(), last_pub = -1, last_ack = -1 }. - -blank_member_state() -> - ?DICT:new(). - -store_member(Id, MemberState, MembersState) -> - ?DICT:store(Id, MemberState, MembersState). - -prepare_members_state(MembersState) -> - ?DICT:to_list(MembersState). - -build_members_state(MembersStateList) -> - ?DICT:from_list(MembersStateList). - - -%% --------------------------------------------------------------------------- -%% Activity assembly -%% --------------------------------------------------------------------------- - -activity_nil() -> - queue:new(). - -activity_cons(_Id, [], [], Tail) -> - Tail; -activity_cons(Sender, Pubs, Acks, Tail) -> - queue:in({Sender, Pubs, Acks}, Tail). - -activity_finalise(Activity) -> - queue:to_list(Activity). - -maybe_send_activity([], _State) -> - ok; -maybe_send_activity(Activity, #state { self = Self, - right = {Right, _MRefR}, - view = View }) -> - send_right(Right, View, {activity, Self, Activity}). - -send_right(Right, View, Msg) -> - ok = gen_server2:cast(Right, {?TAG, view_version(View), Msg}). - -callback(Args, Module, Activity) -> - lists:foldl( - fun ({Id, Pubs, _Acks}, ok) -> - lists:foldl(fun ({_PubNum, Pub}, ok) -> - Module:handle_msg(Args, Id, Pub); - (_, Error) -> - Error - end, ok, Pubs); - (_, Error) -> - Error - end, ok, Activity). - -callback_view_changed(Args, Module, OldView, NewView) -> - OldMembers = all_known_members(OldView), - NewMembers = all_known_members(NewView), - Births = NewMembers -- OldMembers, - Deaths = OldMembers -- NewMembers, - case {Births, Deaths} of - {[], []} -> ok; - _ -> Module:members_changed(Args, Births, Deaths) - end. - -handle_callback_result({Result, State}) -> - if_callback_success( - Result, fun no_reply_true/3, fun no_reply_false/3, undefined, State); -handle_callback_result({Result, Reply, State}) -> - if_callback_success( - Result, fun reply_true/3, fun reply_false/3, Reply, State). - -no_reply_true (_Result, _Undefined, State) -> noreply(State). -no_reply_false({stop, Reason}, _Undefined, State) -> {stop, Reason, State}. - -reply_true (_Result, Reply, State) -> reply(Reply, State). -reply_false({stop, Reason}, Reply, State) -> {stop, Reason, Reply, State}. - -handle_msg_true (_Result, Msg, State) -> handle_msg(Msg, State). -handle_msg_false(Result, _Msg, State) -> {Result, State}. - -activity_true(_Result, Activity, State = #state { module = Module, - callback_args = Args }) -> - {callback(Args, Module, Activity), State}. -activity_false(Result, _Activity, State) -> - {Result, State}. - -if_callback_success(ok, True, _False, Arg, State) -> - True(ok, Arg, State); -if_callback_success( - {become, Module, Args} = Result, True, _False, Arg, State) -> - True(Result, Arg, State #state { module = Module, - callback_args = Args }); -if_callback_success({stop, _Reason} = Result, _True, False, Arg, State) -> - False(Result, Arg, State). - -maybe_confirm(_Self, _Id, Confirms, []) -> - Confirms; -maybe_confirm(Self, Self, Confirms, [PubNum | PubNums]) -> - case queue:out(Confirms) of - {empty, _Confirms} -> - Confirms; - {{value, {PubNum, From}}, Confirms1} -> - gen_server2:reply(From, ok), - maybe_confirm(Self, Self, Confirms1, PubNums); - {{value, {PubNum1, _From}}, _Confirms} when PubNum1 > PubNum -> - maybe_confirm(Self, Self, Confirms, PubNums) - end; -maybe_confirm(_Self, _Id, Confirms, _PubNums) -> - Confirms. - -purge_confirms(Confirms) -> - [gen_server2:reply(From, ok) || {_PubNum, From} <- queue:to_list(Confirms)], - queue:new(). - - -%% --------------------------------------------------------------------------- -%% Msg transformation -%% --------------------------------------------------------------------------- - -acks_from_queue(Q) -> - [PubNum || {PubNum, _Msg} <- queue:to_list(Q)]. - -pubs_from_queue(Q) -> - queue:to_list(Q). - -queue_from_pubs(Pubs) -> - queue:from_list(Pubs). - -apply_acks([], Pubs) -> - Pubs; -apply_acks(List, Pubs) -> - {_, Pubs1} = queue:split(length(List), Pubs), - Pubs1. - -join_pubs(Q, []) -> Q; -join_pubs(Q, Pubs) -> queue:join(Q, queue_from_pubs(Pubs)). - -last_ack([], LA) -> - LA; -last_ack(List, LA) -> - LA1 = lists:last(List), - true = LA1 > LA, %% ASSERTION - LA1. - -last_pub([], LP) -> - LP; -last_pub(List, LP) -> - {PubNum, _Msg} = lists:last(List), - true = PubNum > LP, %% ASSERTION - PubNum. diff --git a/src/gm_soak_test.erl b/src/gm_soak_test.erl deleted file mode 100644 index 5e5a3a5a..00000000 --- a/src/gm_soak_test.erl +++ /dev/null @@ -1,131 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_soak_test). - --export([test/0]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - -%% --------------------------------------------------------------------------- -%% Soak test -%% --------------------------------------------------------------------------- - -get_state() -> - get(state). - -with_state(Fun) -> - put(state, Fun(get_state())). - -inc() -> - case 1 + get(count) of - 100000 -> Now = now(), - Start = put(ts, Now), - Diff = timer:now_diff(Now, Start), - Rate = 100000 / (Diff / 1000000), - io:format("~p seeing ~p msgs/sec~n", [self(), Rate]), - put(count, 0); - N -> put(count, N) - end. - -joined([], Members) -> - io:format("Joined ~p (~p members)~n", [self(), length(Members)]), - put(state, dict:from_list([{Member, empty} || Member <- Members])), - put(count, 0), - put(ts, now()), - ok. - -members_changed([], Births, Deaths) -> - with_state( - fun (State) -> - State1 = - lists:foldl( - fun (Born, StateN) -> - false = dict:is_key(Born, StateN), - dict:store(Born, empty, StateN) - end, State, Births), - lists:foldl( - fun (Died, StateN) -> - true = dict:is_key(Died, StateN), - dict:store(Died, died, StateN) - end, State1, Deaths) - end), - ok. - -handle_msg([], From, {test_msg, Num}) -> - inc(), - with_state( - fun (State) -> - ok = case dict:find(From, State) of - {ok, died} -> - exit({{from, From}, - {received_posthumous_delivery, Num}}); - {ok, empty} -> ok; - {ok, Num} -> ok; - {ok, Num1} when Num < Num1 -> - exit({{from, From}, - {duplicate_delivery_of, Num}, - {expecting, Num1}}); - {ok, Num1} -> - exit({{from, From}, - {received_early, Num}, - {expecting, Num1}}); - error -> - exit({{from, From}, - {received_premature_delivery, Num}}) - end, - dict:store(From, Num + 1, State) - end), - ok. - -terminate([], Reason) -> - io:format("Left ~p (~p)~n", [self(), Reason]), - ok. - -spawn_member() -> - spawn_link( - fun () -> - {MegaSecs, Secs, MicroSecs} = now(), - random:seed(MegaSecs, Secs, MicroSecs), - %% start up delay of no more than 10 seconds - timer:sleep(random:uniform(10000)), - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, []), - Start = random:uniform(10000), - send_loop(Pid, Start, Start + random:uniform(10000)), - gm:leave(Pid), - spawn_more() - end). - -spawn_more() -> - [spawn_member() || _ <- lists:seq(1, 4 - random:uniform(4))]. - -send_loop(_Pid, Target, Target) -> - ok; -send_loop(Pid, Count, Target) when Target > Count -> - case random:uniform(3) of - 3 -> gm:confirmed_broadcast(Pid, {test_msg, Count}); - _ -> gm:broadcast(Pid, {test_msg, Count}) - end, - timer:sleep(random:uniform(5) - 1), %% sleep up to 4 ms - send_loop(Pid, Count + 1, Target). - -test() -> - ok = gm:create_tables(), - spawn_member(), - spawn_member(). diff --git a/src/gm_speed_test.erl b/src/gm_speed_test.erl deleted file mode 100644 index defb0f29..00000000 --- a/src/gm_speed_test.erl +++ /dev/null @@ -1,82 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_speed_test). - --export([test/3]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). --export([wile_e_coyote/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - -%% callbacks - -joined(Owner, _Members) -> - Owner ! joined, - ok. - -members_changed(_Owner, _Births, _Deaths) -> - ok. - -handle_msg(Owner, _From, ping) -> - Owner ! ping, - ok. - -terminate(Owner, _Reason) -> - Owner ! terminated, - ok. - -%% other - -wile_e_coyote(Time, WriteUnit) -> - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, self()), - receive joined -> ok end, - timer:sleep(1000), %% wait for all to join - timer:send_after(Time, stop), - Start = now(), - {Sent, Received} = loop(Pid, WriteUnit, 0, 0), - End = now(), - ok = gm:leave(Pid), - receive terminated -> ok end, - Elapsed = timer:now_diff(End, Start) / 1000000, - io:format("Sending rate: ~p msgs/sec~nReceiving rate: ~p msgs/sec~n~n", - [Sent/Elapsed, Received/Elapsed]), - ok. - -loop(Pid, WriteUnit, Sent, Received) -> - case read(Received) of - {stop, Received1} -> {Sent, Received1}; - {ok, Received1} -> ok = write(Pid, WriteUnit), - loop(Pid, WriteUnit, Sent + WriteUnit, Received1) - end. - -read(Count) -> - receive - ping -> read(Count + 1); - stop -> {stop, Count} - after 5 -> - {ok, Count} - end. - -write(_Pid, 0) -> ok; -write(Pid, N) -> ok = gm:broadcast(Pid, ping), - write(Pid, N - 1). - -test(Time, WriteUnit, Nodes) -> - ok = gm:create_tables(), - [spawn(Node, ?MODULE, wile_e_coyote, [Time, WriteUnit]) || Node <- Nodes]. diff --git a/src/gm_tests.erl b/src/gm_tests.erl deleted file mode 100644 index ca0ffd64..00000000 --- a/src/gm_tests.erl +++ /dev/null @@ -1,182 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_tests). - --export([test_join_leave/0, - test_broadcast/0, - test_confirmed_broadcast/0, - test_member_death/0, - test_receive_in_order/0, - all_tests/0]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - --define(RECEIVE_OR_THROW(Body, Bool, Error), - receive Body -> - true = Bool, - passed - after 1000 -> - throw(Error) - end). - -joined(Pid, Members) -> - Pid ! {joined, self(), Members}, - ok. - -members_changed(Pid, Births, Deaths) -> - Pid ! {members_changed, self(), Births, Deaths}, - ok. - -handle_msg(Pid, From, Msg) -> - Pid ! {msg, self(), From, Msg}, - ok. - -terminate(Pid, Reason) -> - Pid ! {termination, self(), Reason}, - ok. - -%% --------------------------------------------------------------------------- -%% Functional tests -%% --------------------------------------------------------------------------- - -all_tests() -> - passed = test_join_leave(), - passed = test_broadcast(), - passed = test_confirmed_broadcast(), - passed = test_member_death(), - passed = test_receive_in_order(), - passed. - -test_join_leave() -> - with_two_members(fun (_Pid, _Pid2) -> passed end). - -test_broadcast() -> - test_broadcast(fun gm:broadcast/2). - -test_confirmed_broadcast() -> - test_broadcast(fun gm:confirmed_broadcast/2). - -test_member_death() -> - with_two_members( - fun (Pid, Pid2) -> - {ok, Pid3} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid3, [Pid, Pid2, Pid3], - timeout_joining_gm_group_3), - passed = receive_birth(Pid, Pid3, timeout_waiting_for_birth_3_1), - passed = receive_birth(Pid2, Pid3, timeout_waiting_for_birth_3_2), - - unlink(Pid3), - exit(Pid3, kill), - - %% Have to do some broadcasts to ensure that all members - %% find out about the death. - passed = (test_broadcast_fun(fun gm:confirmed_broadcast/2))( - Pid, Pid2), - - passed = receive_death(Pid, Pid3, timeout_waiting_for_death_3_1), - passed = receive_death(Pid2, Pid3, timeout_waiting_for_death_3_2), - - passed - end). - -test_receive_in_order() -> - with_two_members( - fun (Pid, Pid2) -> - Numbers = lists:seq(1,1000), - [begin ok = gm:broadcast(Pid, N), ok = gm:broadcast(Pid2, N) end - || N <- Numbers], - passed = receive_numbers( - Pid, Pid, {timeout_for_msgs, Pid, Pid}, Numbers), - passed = receive_numbers( - Pid, Pid2, {timeout_for_msgs, Pid, Pid2}, Numbers), - passed = receive_numbers( - Pid2, Pid, {timeout_for_msgs, Pid2, Pid}, Numbers), - passed = receive_numbers( - Pid2, Pid2, {timeout_for_msgs, Pid2, Pid2}, Numbers), - passed - end). - -test_broadcast(Fun) -> - with_two_members(test_broadcast_fun(Fun)). - -test_broadcast_fun(Fun) -> - fun (Pid, Pid2) -> - ok = Fun(Pid, magic_message), - passed = receive_or_throw({msg, Pid, Pid, magic_message}, - timeout_waiting_for_msg), - passed = receive_or_throw({msg, Pid2, Pid, magic_message}, - timeout_waiting_for_msg) - end. - -with_two_members(Fun) -> - ok = gm:create_tables(), - - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid, [Pid], timeout_joining_gm_group_1), - - {ok, Pid2} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid2, [Pid, Pid2], timeout_joining_gm_group_2), - passed = receive_birth(Pid, Pid2, timeout_waiting_for_birth_2), - - passed = Fun(Pid, Pid2), - - ok = gm:leave(Pid), - passed = receive_death(Pid2, Pid, timeout_waiting_for_death_1), - passed = - receive_termination(Pid, normal, timeout_waiting_for_termination_1), - - ok = gm:leave(Pid2), - passed = - receive_termination(Pid2, normal, timeout_waiting_for_termination_2), - - receive X -> throw({unexpected_message, X}) - after 0 -> passed - end. - -receive_or_throw(Pattern, Error) -> - ?RECEIVE_OR_THROW(Pattern, true, Error). - -receive_birth(From, Born, Error) -> - ?RECEIVE_OR_THROW({members_changed, From, Birth, Death}, - ([Born] == Birth) andalso ([] == Death), - Error). - -receive_death(From, Died, Error) -> - ?RECEIVE_OR_THROW({members_changed, From, Birth, Death}, - ([] == Birth) andalso ([Died] == Death), - Error). - -receive_joined(From, Members, Error) -> - ?RECEIVE_OR_THROW({joined, From, Members1}, - lists:usort(Members) == lists:usort(Members1), - Error). - -receive_termination(From, Reason, Error) -> - ?RECEIVE_OR_THROW({termination, From, Reason1}, - Reason == Reason1, - Error). - -receive_numbers(_Pid, _Sender, _Error, []) -> - passed; -receive_numbers(Pid, Sender, Error, [N | Numbers]) -> - ?RECEIVE_OR_THROW({msg, Pid, Sender, M}, - M == N, - Error), - receive_numbers(Pid, Sender, Error, Numbers). diff --git a/src/pg2_fixed.erl b/src/pg2_fixed.erl deleted file mode 100644 index 224715eb..00000000 --- a/src/pg2_fixed.erl +++ /dev/null @@ -1,388 +0,0 @@ -%% This is the version of pg2 from R14B02, which contains the fix -%% described at -%% http://erlang.2086793.n4.nabble.com/pg2-still-busted-in-R13B04-td2230601.html. -%% The only changes are a search-and-replace to rename the module and -%% avoid clashes with other versions of pg2. - - -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2010. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(pg2_fixed). - --export([create/1, delete/1, join/2, leave/2]). --export([get_members/1, get_local_members/1]). --export([get_closest_pid/1, which_groups/0]). --export([start/0,start_link/0,init/1,handle_call/3,handle_cast/2,handle_info/2, - terminate/2]). - -%%% As of R13B03 monitors are used instead of links. - -%%% -%%% Exported functions -%%% - --spec start_link() -> {'ok', pid()} | {'error', term()}. - -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). - --spec start() -> {'ok', pid()} | {'error', term()}. - -start() -> - ensure_started(). - --spec create(term()) -> 'ok'. - -create(Name) -> - ensure_started(), - case ets:member(pg2_fixed_table, {group, Name}) of - false -> - global:trans({{?MODULE, Name}, self()}, - fun() -> - gen_server:multi_call(?MODULE, {create, Name}) - end), - ok; - true -> - ok - end. - --type name() :: term(). - --spec delete(name()) -> 'ok'. - -delete(Name) -> - ensure_started(), - global:trans({{?MODULE, Name}, self()}, - fun() -> - gen_server:multi_call(?MODULE, {delete, Name}) - end), - ok. - --spec join(name(), pid()) -> 'ok' | {'error', {'no_such_group', term()}}. - -join(Name, Pid) when is_pid(Pid) -> - ensure_started(), - case ets:member(pg2_fixed_table, {group, Name}) of - false -> - {error, {no_such_group, Name}}; - true -> - global:trans({{?MODULE, Name}, self()}, - fun() -> - gen_server:multi_call(?MODULE, - {join, Name, Pid}) - end), - ok - end. - --spec leave(name(), pid()) -> 'ok' | {'error', {'no_such_group', name()}}. - -leave(Name, Pid) when is_pid(Pid) -> - ensure_started(), - case ets:member(pg2_fixed_table, {group, Name}) of - false -> - {error, {no_such_group, Name}}; - true -> - global:trans({{?MODULE, Name}, self()}, - fun() -> - gen_server:multi_call(?MODULE, - {leave, Name, Pid}) - end), - ok - end. - --type get_members_ret() :: [pid()] | {'error', {'no_such_group', name()}}. - --spec get_members(name()) -> get_members_ret(). - -get_members(Name) -> - ensure_started(), - case ets:member(pg2_fixed_table, {group, Name}) of - true -> - group_members(Name); - false -> - {error, {no_such_group, Name}} - end. - --spec get_local_members(name()) -> get_members_ret(). - -get_local_members(Name) -> - ensure_started(), - case ets:member(pg2_fixed_table, {group, Name}) of - true -> - local_group_members(Name); - false -> - {error, {no_such_group, Name}} - end. - --spec which_groups() -> [name()]. - -which_groups() -> - ensure_started(), - all_groups(). - --type gcp_error_reason() :: {'no_process', term()} | {'no_such_group', term()}. - --spec get_closest_pid(term()) -> pid() | {'error', gcp_error_reason()}. - -get_closest_pid(Name) -> - case get_local_members(Name) of - [Pid] -> - Pid; - [] -> - {_,_,X} = erlang:now(), - case get_members(Name) of - [] -> {error, {no_process, Name}}; - Members -> - lists:nth((X rem length(Members))+1, Members) - end; - Members when is_list(Members) -> - {_,_,X} = erlang:now(), - lists:nth((X rem length(Members))+1, Members); - Else -> - Else - end. - -%%% -%%% Callback functions from gen_server -%%% - --record(state, {}). - --spec init([]) -> {'ok', #state{}}. - -init([]) -> - Ns = nodes(), - net_kernel:monitor_nodes(true), - lists:foreach(fun(N) -> - {?MODULE, N} ! {new_pg2_fixed, node()}, - self() ! {nodeup, N} - end, Ns), - pg2_fixed_table = ets:new(pg2_fixed_table, [ordered_set, protected, named_table]), - {ok, #state{}}. - --type call() :: {'create', name()} - | {'delete', name()} - | {'join', name(), pid()} - | {'leave', name(), pid()}. - --spec handle_call(call(), _, #state{}) -> - {'reply', 'ok', #state{}}. - -handle_call({create, Name}, _From, S) -> - assure_group(Name), - {reply, ok, S}; -handle_call({join, Name, Pid}, _From, S) -> - ets:member(pg2_fixed_table, {group, Name}) andalso join_group(Name, Pid), - {reply, ok, S}; -handle_call({leave, Name, Pid}, _From, S) -> - ets:member(pg2_fixed_table, {group, Name}) andalso leave_group(Name, Pid), - {reply, ok, S}; -handle_call({delete, Name}, _From, S) -> - delete_group(Name), - {reply, ok, S}; -handle_call(Request, From, S) -> - error_logger:warning_msg("The pg2_fixed server received an unexpected message:\n" - "handle_call(~p, ~p, _)\n", - [Request, From]), - {noreply, S}. - --type all_members() :: [[name(),...]]. --type cast() :: {'exchange', node(), all_members()} - | {'del_member', name(), pid()}. - --spec handle_cast(cast(), #state{}) -> {'noreply', #state{}}. - -handle_cast({exchange, _Node, List}, S) -> - store(List), - {noreply, S}; -handle_cast(_, S) -> - %% Ignore {del_member, Name, Pid}. - {noreply, S}. - --spec handle_info(tuple(), #state{}) -> {'noreply', #state{}}. - -handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S) -> - member_died(MonitorRef), - {noreply, S}; -handle_info({nodeup, Node}, S) -> - gen_server:cast({?MODULE, Node}, {exchange, node(), all_members()}), - {noreply, S}; -handle_info({new_pg2_fixed, Node}, S) -> - gen_server:cast({?MODULE, Node}, {exchange, node(), all_members()}), - {noreply, S}; -handle_info(_, S) -> - {noreply, S}. - --spec terminate(term(), #state{}) -> 'ok'. - -terminate(_Reason, _S) -> - true = ets:delete(pg2_fixed_table), - ok. - -%%% -%%% Local functions -%%% - -%%% One ETS table, pg2_fixed_table, is used for bookkeeping. The type of the -%%% table is ordered_set, and the fast matching of partially -%%% instantiated keys is used extensively. -%%% -%%% {{group, Name}} -%%% Process group Name. -%%% {{ref, Pid}, RPid, MonitorRef, Counter} -%%% {{ref, MonitorRef}, Pid} -%%% Each process has one monitor. Sometimes a process is spawned to -%%% monitor the pid (RPid). Counter is incremented when the Pid joins -%%% some group. -%%% {{member, Name, Pid}, GroupCounter} -%%% {{local_member, Name, Pid}} -%%% Pid is a member of group Name, GroupCounter is incremented when the -%%% Pid joins the group Name. -%%% {{pid, Pid, Name}} -%%% Pid is a member of group Name. - -store(List) -> - _ = [(assure_group(Name) - andalso - [join_group(Name, P) || P <- Members -- group_members(Name)]) || - [Name, Members] <- List], - ok. - -assure_group(Name) -> - Key = {group, Name}, - ets:member(pg2_fixed_table, Key) orelse true =:= ets:insert(pg2_fixed_table, {Key}). - -delete_group(Name) -> - _ = [leave_group(Name, Pid) || Pid <- group_members(Name)], - true = ets:delete(pg2_fixed_table, {group, Name}), - ok. - -member_died(Ref) -> - [{{ref, Ref}, Pid}] = ets:lookup(pg2_fixed_table, {ref, Ref}), - Names = member_groups(Pid), - _ = [leave_group(Name, P) || - Name <- Names, - P <- member_in_group(Pid, Name)], - %% Kept for backward compatibility with links. Can be removed, eventually. - _ = [gen_server:abcast(nodes(), ?MODULE, {del_member, Name, Pid}) || - Name <- Names], - ok. - -join_group(Name, Pid) -> - Ref_Pid = {ref, Pid}, - try _ = ets:update_counter(pg2_fixed_table, Ref_Pid, {4, +1}) - catch _:_ -> - {RPid, Ref} = do_monitor(Pid), - true = ets:insert(pg2_fixed_table, {Ref_Pid, RPid, Ref, 1}), - true = ets:insert(pg2_fixed_table, {{ref, Ref}, Pid}) - end, - Member_Name_Pid = {member, Name, Pid}, - try _ = ets:update_counter(pg2_fixed_table, Member_Name_Pid, {2, +1, 1, 1}) - catch _:_ -> - true = ets:insert(pg2_fixed_table, {Member_Name_Pid, 1}), - _ = [ets:insert(pg2_fixed_table, {{local_member, Name, Pid}}) || - node(Pid) =:= node()], - true = ets:insert(pg2_fixed_table, {{pid, Pid, Name}}) - end. - -leave_group(Name, Pid) -> - Member_Name_Pid = {member, Name, Pid}, - try ets:update_counter(pg2_fixed_table, Member_Name_Pid, {2, -1, 0, 0}) of - N -> - if - N =:= 0 -> - true = ets:delete(pg2_fixed_table, {pid, Pid, Name}), - _ = [ets:delete(pg2_fixed_table, {local_member, Name, Pid}) || - node(Pid) =:= node()], - true = ets:delete(pg2_fixed_table, Member_Name_Pid); - true -> - ok - end, - Ref_Pid = {ref, Pid}, - case ets:update_counter(pg2_fixed_table, Ref_Pid, {4, -1}) of - 0 -> - [{Ref_Pid,RPid,Ref,0}] = ets:lookup(pg2_fixed_table, Ref_Pid), - true = ets:delete(pg2_fixed_table, {ref, Ref}), - true = ets:delete(pg2_fixed_table, Ref_Pid), - true = erlang:demonitor(Ref, [flush]), - kill_monitor_proc(RPid, Pid); - _ -> - ok - end - catch _:_ -> - ok - end. - -all_members() -> - [[G, group_members(G)] || G <- all_groups()]. - -group_members(Name) -> - [P || - [P, N] <- ets:match(pg2_fixed_table, {{member, Name, '$1'},'$2'}), - _ <- lists:seq(1, N)]. - -local_group_members(Name) -> - [P || - [Pid] <- ets:match(pg2_fixed_table, {{local_member, Name, '$1'}}), - P <- member_in_group(Pid, Name)]. - -member_in_group(Pid, Name) -> - case ets:lookup(pg2_fixed_table, {member, Name, Pid}) of - [] -> []; - [{{member, Name, Pid}, N}] -> - lists:duplicate(N, Pid) - end. - -member_groups(Pid) -> - [Name || [Name] <- ets:match(pg2_fixed_table, {{pid, Pid, '$1'}})]. - -all_groups() -> - [N || [N] <- ets:match(pg2_fixed_table, {{group,'$1'}})]. - -ensure_started() -> - case whereis(?MODULE) of - undefined -> - C = {pg2_fixed, {?MODULE, start_link, []}, permanent, - 1000, worker, [?MODULE]}, - supervisor:start_child(kernel_safe_sup, C); - Pg2_FixedPid -> - {ok, Pg2_FixedPid} - end. - - -kill_monitor_proc(RPid, Pid) -> - RPid =:= Pid orelse exit(RPid, kill). - -%% When/if erlang:monitor() returns before trying to connect to the -%% other node this function can be removed. -do_monitor(Pid) -> - case (node(Pid) =:= node()) orelse lists:member(node(Pid), nodes()) of - true -> - %% Assume the node is still up - {Pid, erlang:monitor(process, Pid)}; - false -> - F = fun() -> - Ref = erlang:monitor(process, Pid), - receive - {'DOWN', Ref, process, Pid, _Info} -> - exit(normal) - end - end, - erlang:spawn_monitor(F) - end. diff --git a/src/priority_queue.erl b/src/priority_queue.erl deleted file mode 100644 index 4fc8b469..00000000 --- a/src/priority_queue.erl +++ /dev/null @@ -1,194 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% Priority queues have essentially the same interface as ordinary -%% queues, except that a) there is an in/3 that takes a priority, and -%% b) we have only implemented the core API we need. -%% -%% Priorities should be integers - the higher the value the higher the -%% priority - but we don't actually check that. -%% -%% in/2 inserts items with priority 0. -%% -%% We optimise the case where a priority queue is being used just like -%% an ordinary queue. When that is the case we represent the priority -%% queue as an ordinary queue. We could just call into the 'queue' -%% module for that, but for efficiency we implement the relevant -%% functions directly in here, thus saving on inter-module calls and -%% eliminating a level of boxing. -%% -%% When the queue contains items with non-zero priorities, it is -%% represented as a sorted kv list with the inverted Priority as the -%% key and an ordinary queue as the value. Here again we use our own -%% ordinary queue implemention for efficiency, often making recursive -%% calls into the same function knowing that ordinary queues represent -%% a base case. - - --module(priority_queue). - --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([q/0]). - --type(q() :: pqueue()). --type(priority() :: integer() | 'infinity'). --type(squeue() :: {queue, [any()], [any()]}). --type(pqueue() :: squeue() | {pqueue, [{priority(), squeue()}]}). - --spec(new/0 :: () -> pqueue()). --spec(is_queue/1 :: (any()) -> boolean()). --spec(is_empty/1 :: (pqueue()) -> boolean()). --spec(len/1 :: (pqueue()) -> non_neg_integer()). --spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). --spec(in/2 :: (any(), pqueue()) -> pqueue()). --spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> - {queue, [], []}. - -is_queue({queue, R, F}) when is_list(R), is_list(F) -> - true; -is_queue({pqueue, Queues}) when is_list(Queues) -> - lists:all(fun ({infinity, Q}) -> is_queue(Q); - ({P, Q}) -> is_integer(P) andalso is_queue(Q) - end, Queues); -is_queue(_) -> - false. - -is_empty({queue, [], []}) -> - true; -is_empty(_) -> - false. - -len({queue, R, F}) when is_list(R), is_list(F) -> - length(R) + length(F); -len({pqueue, Queues}) -> - lists:sum([len(Q) || {_, Q} <- Queues]). - -to_list({queue, In, Out}) when is_list(In), is_list(Out) -> - [{0, V} || V <- Out ++ lists:reverse(In, [])]; -to_list({pqueue, Queues}) -> - [{maybe_negate_priority(P), V} || {P, Q} <- Queues, - {0, V} <- to_list(Q)]. - -in(Item, Q) -> - in(Item, 0, Q). - -in(X, 0, {queue, [_] = In, []}) -> - {queue, [X], In}; -in(X, 0, {queue, In, Out}) when is_list(In), is_list(Out) -> - {queue, [X|In], Out}; -in(X, Priority, _Q = {queue, [], []}) -> - in(X, Priority, {pqueue, []}); -in(X, Priority, Q = {queue, _, _}) -> - in(X, Priority, {pqueue, [{0, Q}]}); -in(X, Priority, {pqueue, Queues}) -> - P = maybe_negate_priority(Priority), - {pqueue, case lists:keysearch(P, 1, Queues) of - {value, {_, Q}} -> - lists:keyreplace(P, 1, Queues, {P, in(X, Q)}); - false when P == infinity -> - [{P, {queue, [X], []}} | Queues]; - false -> - case Queues of - [{infinity, InfQueue} | Queues1] -> - [{infinity, InfQueue} | - lists:keysort(1, [{P, {queue, [X], []}} | Queues1])]; - _ -> - lists:keysort(1, [{P, {queue, [X], []}} | Queues]) - end - end}. - -out({queue, [], []} = Q) -> - {empty, Q}; -out({queue, [V], []}) -> - {{value, V}, {queue, [], []}}; -out({queue, [Y|In], []}) -> - [V|Out] = lists:reverse(In, []), - {{value, V}, {queue, [Y], Out}}; -out({queue, In, [V]}) when is_list(In) -> - {{value,V}, r2f(In)}; -out({queue, In,[V|Out]}) when is_list(In) -> - {{value, V}, {queue, In, Out}}; -out({pqueue, [{P, Q} | Queues]}) -> - {R, Q1} = out(Q), - NewQ = case is_empty(Q1) of - true -> case Queues of - [] -> {queue, [], []}; - [{0, OnlyQ}] -> OnlyQ; - [_|_] -> {pqueue, Queues} - end; - false -> {pqueue, [{P, Q1} | Queues]} - end, - {R, NewQ}. - -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = - lists:splitwith(fun ({P, _}) -> P < 0 orelse P == infinity end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = - lists:splitwith(fun ({P, _}) -> P < 0 orelse P == infinity end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB orelse PA == infinity -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - -r2f([]) -> {queue, [], []}; -r2f([_] = R) -> {queue, [], R}; -r2f([X,Y]) -> {queue, [X], [Y]}; -r2f([X,Y|R]) -> {queue, [X,Y], lists:reverse(R, [])}. - -maybe_negate_priority(infinity) -> infinity; -maybe_negate_priority(P) -> -P. diff --git a/src/rabbit.erl b/src/rabbit.erl deleted file mode 100644 index 8da8dabe..00000000 --- a/src/rabbit.erl +++ /dev/null @@ -1,601 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit). - --behaviour(application). - --export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, environment/0, - rotate_logs/1, force_event_refresh/0, ensure_process_groups/0]). - --export([start/2, stop/1]). - --export([log_location/1]). %% for testing - -%%--------------------------------------------------------------------------- -%% Boot steps. --export([maybe_insert_default_data/0, boot_delegate/0, recover/0]). - --rabbit_boot_step({pre_boot, [{description, "rabbit boot start"}]}). - --rabbit_boot_step({codec_correctness_check, - [{description, "codec correctness check"}, - {mfa, {rabbit_binary_generator, - check_empty_content_body_frame_size, - []}}, - {requires, pre_boot}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({database, - [{mfa, {rabbit_mnesia, init, []}}, - {requires, file_handle_cache}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({file_handle_cache, - [{description, "file handle cache server"}, - {mfa, {rabbit_sup, start_restartable_child, - [file_handle_cache]}}, - {requires, pre_boot}, - {enables, worker_pool}]}). - --rabbit_boot_step({worker_pool, - [{description, "worker pool"}, - {mfa, {rabbit_sup, start_child, [worker_pool_sup]}}, - {requires, pre_boot}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({ensure_process_groups, - [{description, "ensuring process groups exist"}, - {mfa, {rabbit, ensure_process_groups, []}}, - {requires, pre_boot}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({external_infrastructure, - [{description, "external infrastructure ready"}]}). - --rabbit_boot_step({rabbit_registry, - [{description, "plugin registry"}, - {mfa, {rabbit_sup, start_child, - [rabbit_registry]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_log, - [{description, "logging server"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_log]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_event, - [{description, "statistics event manager"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_event]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({kernel_ready, - [{description, "kernel ready"}, - {requires, external_infrastructure}]}). - --rabbit_boot_step({rabbit_alarm, - [{description, "alarm handler"}, - {mfa, {rabbit_alarm, start, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_memory_monitor, - [{description, "memory monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_memory_monitor]}}, - {requires, rabbit_alarm}, - {enables, core_initialized}]}). - --rabbit_boot_step({guid_generator, - [{description, "guid generator"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_guid]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({delegate_sup, - [{description, "cluster delegate"}, - {mfa, {rabbit, boot_delegate, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_node_monitor, - [{description, "node monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_node_monitor]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({core_initialized, - [{description, "core initialized"}, - {requires, kernel_ready}]}). - --rabbit_boot_step({empty_db_check, - [{description, "empty DB check"}, - {mfa, {?MODULE, maybe_insert_default_data, []}}, - {requires, core_initialized}, - {enables, routing_ready}]}). - --rabbit_boot_step({recovery, - [{description, "exchange, queue and binding recovery"}, - {mfa, {rabbit, recover, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({mirror_queue_slave_sup, - [{description, "mirror queue slave sup"}, - {mfa, {rabbit_mirror_queue_slave_sup, start, []}}, - {requires, recovery}, - {enables, routing_ready}]}). - --rabbit_boot_step({mirrored_queues, - [{description, "adding mirrors to queues"}, - {mfa, {rabbit_mirror_queue_misc, on_node_up, []}}, - {requires, mirror_queue_slave_sup}, - {enables, routing_ready}]}). - --rabbit_boot_step({routing_ready, - [{description, "message delivery logic ready"}, - {requires, core_initialized}]}). - --rabbit_boot_step({log_relay, - [{description, "error log relay"}, - {mfa, {rabbit_error_logger, boot, []}}, - {requires, routing_ready}, - {enables, networking}]}). - --rabbit_boot_step({direct_client, - [{mfa, {rabbit_direct, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({networking, - [{mfa, {rabbit_networking, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({notify_cluster, - [{description, "notify cluster nodes"}, - {mfa, {rabbit_node_monitor, notify_cluster, []}}, - {requires, networking}]}). - -%%--------------------------------------------------------------------------- - --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --define(APPS, [os_mon, mnesia, rabbit]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(file_suffix() :: binary()). -%% this really should be an abstract type --type(log_location() :: 'tty' | 'undefined' | file:filename()). - --spec(prepare/0 :: () -> 'ok'). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_halt/0 :: () -> 'ok'). --spec(rotate_logs/1 :: (file_suffix()) -> rabbit_types:ok_or_error(any())). --spec(force_event_refresh/0 :: () -> 'ok'). --spec(status/0 :: - () -> [{pid, integer()} | - {running_applications, [{atom(), string(), string()}]} | - {os, {atom(), atom()}} | - {erlang_version, string()} | - {memory, any()}]). --spec(environment/0 :: () -> [{atom() | term()}]). --spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). - --spec(maybe_insert_default_data/0 :: () -> 'ok'). --spec(boot_delegate/0 :: () -> 'ok'). --spec(recover/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -prepare() -> - ok = ensure_working_log_handlers(), - ok = rabbit_upgrade:maybe_upgrade_mnesia(). - -start() -> - try - ok = prepare(), - ok = rabbit_misc:start_applications(application_load_order()) - after - %%give the error loggers some time to catch up - timer:sleep(100) - end. - -stop() -> - ok = rabbit_misc:stop_applications(application_load_order()). - -stop_and_halt() -> - try - stop() - after - init:stop() - end, - ok. - -status() -> - [{pid, list_to_integer(os:getpid())}, - {running_applications, application:which_applications()}, - {os, os:type()}, - {erlang_version, erlang:system_info(system_version)}, - {memory, erlang:memory()}]. - -environment() -> - lists:keysort( - 1, [P || P = {K, _} <- application:get_all_env(rabbit), - K =/= default_pass]). - -rotate_logs(BinarySuffix) -> - Suffix = binary_to_list(BinarySuffix), - log_rotation_result(rotate_logs(log_location(kernel), - Suffix, - rabbit_error_logger_file_h), - rotate_logs(log_location(sasl), - Suffix, - rabbit_sasl_report_file_h)). - -%%-------------------------------------------------------------------- - -start(normal, []) -> - case erts_version_check() of - ok -> - ok = rabbit_mnesia:delete_previously_running_nodes(), - {ok, SupPid} = rabbit_sup:start_link(), - true = register(rabbit, self()), - - print_banner(), - [ok = run_boot_step(Step) || Step <- boot_steps()], - io:format("~nbroker running~n"), - {ok, SupPid}; - Error -> - Error - end. - -stop(_State) -> - ok = rabbit_mnesia:record_running_nodes(), - terminated_ok = error_logger:delete_report_handler(rabbit_error_logger), - ok = rabbit_alarm:stop(), - ok = case rabbit_mnesia:is_clustered() of - true -> rabbit_amqqueue:on_node_down(node()); - false -> rabbit_mnesia:empty_ram_only_tables() - end, - ok. - -%%--------------------------------------------------------------------------- -%% application life cycle - -application_load_order() -> - ok = load_applications(), - {ok, G} = rabbit_misc:build_acyclic_graph( - fun (App, _Deps) -> [{App, App}] end, - fun (App, Deps) -> [{Dep, App} || Dep <- Deps] end, - [{App, app_dependencies(App)} || - {App, _Desc, _Vsn} <- application:loaded_applications()]), - true = digraph:del_vertices( - G, digraph:vertices(G) -- digraph_utils:reachable(?APPS, G)), - Result = digraph_utils:topsort(G), - true = digraph:delete(G), - Result. - -load_applications() -> - load_applications(queue:from_list(?APPS), sets:new()). - -load_applications(Worklist, Loaded) -> - case queue:out(Worklist) of - {empty, _WorkList} -> - ok; - {{value, App}, Worklist1} -> - case sets:is_element(App, Loaded) of - true -> load_applications(Worklist1, Loaded); - false -> case application:load(App) of - ok -> ok; - {error, {already_loaded, App}} -> ok; - Error -> throw(Error) - end, - load_applications( - queue:join(Worklist1, - queue:from_list(app_dependencies(App))), - sets:add_element(App, Loaded)) - end - end. - -app_dependencies(App) -> - case application:get_key(App, applications) of - undefined -> []; - {ok, Lst} -> Lst - end. - -%%--------------------------------------------------------------------------- -%% boot step logic - -run_boot_step({StepName, Attributes}) -> - Description = case lists:keysearch(description, 1, Attributes) of - {value, {_, D}} -> D; - false -> StepName - end, - case [MFA || {mfa, MFA} <- Attributes] of - [] -> - io:format("-- ~s~n", [Description]); - MFAs -> - io:format("starting ~-60s ...", [Description]), - [try - apply(M,F,A) - catch - _:Reason -> boot_error("FAILED~nReason: ~p~nStacktrace: ~p~n", - [Reason, erlang:get_stacktrace()]) - end || {M,F,A} <- MFAs], - io:format("done~n"), - ok - end. - -boot_steps() -> - sort_boot_steps(rabbit_misc:all_module_attributes(rabbit_boot_step)). - -vertices(_Module, Steps) -> - [{StepName, {StepName, Atts}} || {StepName, Atts} <- Steps]. - -edges(_Module, Steps) -> - [case Key of - requires -> {StepName, OtherStep}; - enables -> {OtherStep, StepName} - end || {StepName, Atts} <- Steps, - {Key, OtherStep} <- Atts, - Key =:= requires orelse Key =:= enables]. - -sort_boot_steps(UnsortedSteps) -> - case rabbit_misc:build_acyclic_graph(fun vertices/2, fun edges/2, - UnsortedSteps) of - {ok, G} -> - %% Use topological sort to find a consistent ordering (if - %% there is one, otherwise fail). - SortedSteps = lists:reverse( - [begin - {StepName, Step} = digraph:vertex(G, StepName), - Step - end || StepName <- digraph_utils:topsort(G)]), - digraph:delete(G), - %% Check that all mentioned {M,F,A} triples are exported. - case [{StepName, {M,F,A}} || - {StepName, Attributes} <- SortedSteps, - {mfa, {M,F,A}} <- Attributes, - not erlang:function_exported(M, F, length(A))] of - [] -> SortedSteps; - MissingFunctions -> boot_error( - "Boot step functions not exported: ~p~n", - [MissingFunctions]) - end; - {error, {vertex, duplicate, StepName}} -> - boot_error("Duplicate boot step name: ~w~n", [StepName]); - {error, {edge, Reason, From, To}} -> - boot_error( - "Could not add boot step dependency of ~w on ~w:~n~s", - [To, From, - case Reason of - {bad_vertex, V} -> - io_lib:format("Boot step not registered: ~w~n", [V]); - {bad_edge, [First | Rest]} -> - [io_lib:format("Cyclic dependency: ~w", [First]), - [io_lib:format(" depends on ~w", [Next]) || - Next <- Rest], - io_lib:format(" depends on ~w~n", [First])] - end]) - end. - -boot_error(Format, Args) -> - io:format("BOOT ERROR: " ++ Format, Args), - error_logger:error_msg(Format, Args), - timer:sleep(1000), - exit({?MODULE, failure_during_boot}). - -%%--------------------------------------------------------------------------- -%% boot step functions - -boot_delegate() -> - {ok, Count} = application:get_env(rabbit, delegate_count), - rabbit_sup:start_child(delegate_sup, [Count]). - -recover() -> - rabbit_binding:recover(rabbit_exchange:recover(), rabbit_amqqueue:start()). - -maybe_insert_default_data() -> - case rabbit_mnesia:is_db_empty() of - true -> insert_default_data(); - false -> ok - end. - -insert_default_data() -> - {ok, DefaultUser} = application:get_env(default_user), - {ok, DefaultPass} = application:get_env(default_pass), - {ok, DefaultTags} = application:get_env(default_user_tags), - {ok, DefaultVHost} = application:get_env(default_vhost), - {ok, [DefaultConfigurePerm, DefaultWritePerm, DefaultReadPerm]} = - application:get_env(default_permissions), - ok = rabbit_vhost:add(DefaultVHost), - ok = rabbit_auth_backend_internal:add_user(DefaultUser, DefaultPass), - ok = rabbit_auth_backend_internal:set_tags(DefaultUser, DefaultTags), - ok = rabbit_auth_backend_internal:set_permissions(DefaultUser, DefaultVHost, - DefaultConfigurePerm, - DefaultWritePerm, - DefaultReadPerm), - ok. - -ensure_process_groups() -> - [ok = pg2_fixed:create(G) || G <- [rabbit_channels, - rabbit_network_connections]]. - -%%--------------------------------------------------------------------------- -%% logging - -ensure_working_log_handlers() -> - Handlers = gen_event:which_handlers(error_logger), - ok = ensure_working_log_handler(error_logger_file_h, - rabbit_error_logger_file_h, - error_logger_tty_h, - log_location(kernel), - Handlers), - - ok = ensure_working_log_handler(sasl_report_file_h, - rabbit_sasl_report_file_h, - sasl_report_tty_h, - log_location(sasl), - Handlers), - ok. - -ensure_working_log_handler(OldFHandler, NewFHandler, TTYHandler, - LogLocation, Handlers) -> - case LogLocation of - undefined -> ok; - tty -> case lists:member(TTYHandler, Handlers) of - true -> ok; - false -> - throw({error, {cannot_log_to_tty, - TTYHandler, not_installed}}) - end; - _ -> case lists:member(NewFHandler, Handlers) of - true -> ok; - false -> case rotate_logs(LogLocation, "", - OldFHandler, NewFHandler) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_log_to_file, - LogLocation, Reason}}) - end - end - end. - -log_location(Type) -> - case application:get_env(Type, case Type of - kernel -> error_logger; - sasl -> sasl_error_logger - end) of - {ok, {file, File}} -> File; - {ok, false} -> undefined; - {ok, tty} -> tty; - {ok, silent} -> undefined; - {ok, Bad} -> throw({error, {cannot_log_to_file, Bad}}); - _ -> undefined - end. - -rotate_logs(File, Suffix, Handler) -> - rotate_logs(File, Suffix, Handler, Handler). - -rotate_logs(File, Suffix, OldHandler, NewHandler) -> - case File of - undefined -> ok; - tty -> ok; - _ -> gen_event:swap_handler( - error_logger, - {OldHandler, swap}, - {NewHandler, {File, Suffix}}) - end. - -log_rotation_result({error, MainLogError}, {error, SaslLogError}) -> - {error, {{cannot_rotate_main_logs, MainLogError}, - {cannot_rotate_sasl_logs, SaslLogError}}}; -log_rotation_result({error, MainLogError}, ok) -> - {error, {cannot_rotate_main_logs, MainLogError}}; -log_rotation_result(ok, {error, SaslLogError}) -> - {error, {cannot_rotate_sasl_logs, SaslLogError}}; -log_rotation_result(ok, ok) -> - ok. - -force_event_refresh() -> - rabbit_networking:force_connection_event_refresh(), - rabbit_channel:force_event_refresh(), - rabbit_amqqueue:force_event_refresh(). - -%%--------------------------------------------------------------------------- -%% misc - -erts_version_check() -> - FoundVer = erlang:system_info(version), - case rabbit_misc:version_compare(?ERTS_MINIMUM, FoundVer, lte) of - true -> ok; - false -> {error, {erlang_version_too_old, - {found, FoundVer}, {required, ?ERTS_MINIMUM}}} - end. - -print_banner() -> - {ok, Product} = application:get_key(id), - {ok, Version} = application:get_key(vsn), - ProductLen = string:len(Product), - io:format("~n" - "+---+ +---+~n" - "| | | |~n" - "| | | |~n" - "| | | |~n" - "| +---+ +-------+~n" - "| |~n" - "| ~s +---+ |~n" - "| | | |~n" - "| ~s +---+ |~n" - "| |~n" - "+-------------------+~n" - "~s~n~s~n~s~n~n", - [Product, string:right([$v|Version], ProductLen), - ?PROTOCOL_VERSION, - ?COPYRIGHT_MESSAGE, ?INFORMATION_MESSAGE]), - Settings = [{"node", node()}, - {"app descriptor", app_location()}, - {"home dir", home_dir()}, - {"config file(s)", config_files()}, - {"cookie hash", rabbit_misc:cookie_hash()}, - {"log", log_location(kernel)}, - {"sasl log", log_location(sasl)}, - {"database dir", rabbit_mnesia:dir()}, - {"erlang version", erlang:system_info(version)}], - DescrLen = 1 + lists:max([length(K) || {K, _V} <- Settings]), - Format = fun (K, V) -> - io:format("~-" ++ integer_to_list(DescrLen) ++ "s: ~s~n", - [K, V]) - end, - lists:foreach(fun ({"config file(s)" = K, []}) -> - Format(K, "(none)"); - ({"config file(s)" = K, [V0 | Vs]}) -> - Format(K, V0), [Format("", V) || V <- Vs]; - ({K, V}) -> - Format(K, V) - end, Settings), - io:nl(). - -app_location() -> - {ok, Application} = application:get_application(), - filename:absname(code:where_is_file(atom_to_list(Application) ++ ".app")). - -home_dir() -> - case init:get_argument(home) of - {ok, [[Home]]} -> Home; - Other -> Other - end. - -config_files() -> - case init:get_argument(config) of - {ok, Files} -> [filename:absname( - filename:rootname(File, ".config") ++ ".config") || - File <- Files]; - error -> [] - end. diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl deleted file mode 100644 index c0ae18c0..00000000 --- a/src/rabbit_access_control.erl +++ /dev/null @@ -1,103 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_access_control). - --include("rabbit.hrl"). - --export([check_user_pass_login/2, check_user_login/2, - check_vhost_access/2, check_resource_access/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([permission_atom/0]). - --type(permission_atom() :: 'configure' | 'read' | 'write'). - --spec(check_user_pass_login/2 :: - (rabbit_types:username(), rabbit_types:password()) - -> {'ok', rabbit_types:user()} | {'refused', string(), [any()]}). --spec(check_vhost_access/2 :: - (rabbit_types:user(), rabbit_types:vhost()) - -> 'ok' | rabbit_types:channel_exit()). --spec(check_resource_access/3 :: - (rabbit_types:user(), rabbit_types:r(atom()), permission_atom()) - -> 'ok' | rabbit_types:channel_exit()). - --endif. - -%%---------------------------------------------------------------------------- - -check_user_pass_login(Username, Password) -> - check_user_login(Username, [{password, Password}]). - -check_user_login(Username, AuthProps) -> - {ok, Modules} = application:get_env(rabbit, auth_backends), - lists:foldl( - fun(Module, {refused, _, _}) -> - case Module:check_user_login(Username, AuthProps) of - {error, E} -> - {refused, "~s failed authenticating ~s: ~p~n", - [Module, Username, E]}; - Else -> - Else - end; - (_, {ok, User}) -> - {ok, User} - end, {refused, "No modules checked '~s'", [Username]}, Modules). - -check_vhost_access(User = #user{ username = Username, - auth_backend = Module }, VHostPath) -> - ?LOGDEBUG("Checking VHost access for ~p to ~p~n", [Username, VHostPath]), - check_access( - fun() -> - rabbit_vhost:exists(VHostPath) andalso - Module:check_vhost_access(User, VHostPath) - end, - "~s failed checking vhost access to ~s for ~s: ~p~n", - [Module, VHostPath, Username], - "access to vhost '~s' refused for user '~s'", - [VHostPath, Username]). - -check_resource_access(User, R = #resource{kind = exchange, name = <<"">>}, - Permission) -> - check_resource_access(User, R#resource{name = <<"amq.default">>}, - Permission); -check_resource_access(User = #user{username = Username, auth_backend = Module}, - Resource, Permission) -> - check_access( - fun() -> Module:check_resource_access(User, Resource, Permission) end, - "~s failed checking resource access to ~p for ~s: ~p~n", - [Module, Resource, Username], - "access to ~s refused for user '~s'", - [rabbit_misc:rs(Resource), Username]). - -check_access(Fun, ErrStr, ErrArgs, RefStr, RefArgs) -> - Allow = case Fun() of - {error, _} = E -> - rabbit_log:error(ErrStr, ErrArgs ++ [E]), - false; - Else -> - Else - end, - case Allow of - true -> - ok; - false -> - rabbit_misc:protocol_error(access_refused, RefStr, RefArgs) - end. diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl deleted file mode 100644 index d38ecb91..00000000 --- a/src/rabbit_alarm.erl +++ /dev/null @@ -1,166 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_alarm). - --behaviour(gen_event). - --export([start/0, stop/0, register/2, on_node_up/1, on_node_down/1]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - --export([remote_conserve_memory/2]). %% Internal use only - --record(alarms, {alertees, alarmed_nodes}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(mfa_tuple() :: {atom(), atom(), list()}). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(register/2 :: (pid(), mfa_tuple()) -> boolean()). --spec(on_node_up/1 :: (node()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - ok = alarm_handler:add_alarm_handler(?MODULE, []), - {ok, MemoryWatermark} = application:get_env(vm_memory_high_watermark), - ok = case MemoryWatermark == 0 of - true -> ok; - false -> rabbit_sup:start_restartable_child(vm_memory_monitor, - [MemoryWatermark]) - end, - ok. - -stop() -> - ok = alarm_handler:delete_alarm_handler(?MODULE). - -register(Pid, HighMemMFA) -> - gen_event:call(alarm_handler, ?MODULE, - {register, Pid, HighMemMFA}, - infinity). - -on_node_up(Node) -> gen_event:notify(alarm_handler, {node_up, Node}). - -on_node_down(Node) -> gen_event:notify(alarm_handler, {node_down, Node}). - -%% Can't use alarm_handler:{set,clear}_alarm because that doesn't -%% permit notifying a remote node. -remote_conserve_memory(Pid, true) -> - gen_event:notify({alarm_handler, node(Pid)}, - {set_alarm, {{vm_memory_high_watermark, node()}, []}}); -remote_conserve_memory(Pid, false) -> - gen_event:notify({alarm_handler, node(Pid)}, - {clear_alarm, {vm_memory_high_watermark, node()}}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #alarms{alertees = dict:new(), - alarmed_nodes = sets:new()}}. - -handle_call({register, Pid, HighMemMFA}, State) -> - {ok, 0 < sets:size(State#alarms.alarmed_nodes), - internal_register(Pid, HighMemMFA, State)}; - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({set_alarm, {{vm_memory_high_watermark, Node}, []}}, State) -> - {ok, maybe_alert(fun sets:add_element/2, Node, State)}; - -handle_event({clear_alarm, {vm_memory_high_watermark, Node}}, State) -> - {ok, maybe_alert(fun sets:del_element/2, Node, State)}; - -handle_event({node_up, Node}, State) -> - %% Must do this via notify and not call to avoid possible deadlock. - ok = gen_event:notify( - {alarm_handler, Node}, - {register, self(), {?MODULE, remote_conserve_memory, []}}), - {ok, State}; - -handle_event({node_down, Node}, State) -> - {ok, maybe_alert(fun sets:del_element/2, Node, State)}; - -handle_event({register, Pid, HighMemMFA}, State) -> - {ok, internal_register(Pid, HighMemMFA, State)}; - -handle_event(_Event, State) -> - {ok, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #alarms{alertees = Alertees}) -> - {ok, State#alarms{alertees = dict:erase(Pid, Alertees)}}; - -handle_info(_Info, State) -> - {ok, State}. - -terminate(_Arg, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -maybe_alert(SetFun, Node, State = #alarms{alarmed_nodes = AN, - alertees = Alertees}) -> - AN1 = SetFun(Node, AN), - BeforeSz = sets:size(AN), - AfterSz = sets:size(AN1), - %% If we have changed our alarm state, inform the remotes. - IsLocal = Node =:= node(), - if IsLocal andalso BeforeSz < AfterSz -> ok = alert_remote(true, Alertees); - IsLocal andalso BeforeSz > AfterSz -> ok = alert_remote(false, Alertees); - true -> ok - end, - %% If the overall alarm state has changed, inform the locals. - case {BeforeSz, AfterSz} of - {0, 1} -> ok = alert_local(true, Alertees); - {1, 0} -> ok = alert_local(false, Alertees); - {_, _} -> ok - end, - State#alarms{alarmed_nodes = AN1}. - -alert_local(Alert, Alertees) -> alert(Alert, Alertees, fun erlang:'=:='/2). - -alert_remote(Alert, Alertees) -> alert(Alert, Alertees, fun erlang:'=/='/2). - -alert(Alert, Alertees, NodeComparator) -> - Node = node(), - dict:fold(fun (Pid, {M, F, A}, ok) -> - case NodeComparator(Node, node(Pid)) of - true -> apply(M, F, A ++ [Pid, Alert]); - false -> ok - end - end, ok, Alertees). - -internal_register(Pid, {M, F, A} = HighMemMFA, - State = #alarms{alertees = Alertees}) -> - _MRef = erlang:monitor(process, Pid), - case sets:is_element(node(), State#alarms.alarmed_nodes) of - true -> ok = apply(M, F, A ++ [Pid, true]); - false -> ok - end, - NewAlertees = dict:store(Pid, HighMemMFA, Alertees), - State#alarms{alertees = NewAlertees}. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl deleted file mode 100644 index c5e2f908..00000000 --- a/src/rabbit_amqqueue.erl +++ /dev/null @@ -1,553 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue). - --export([start/0, stop/0, declare/5, delete_immediately/1, delete/3, purge/1]). --export([pseudo_queue/2]). --export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, - check_exclusive_access/2, with_exclusive_access_or_die/3, - stat/1, deliver/2, requeue/3, ack/3, reject/4]). --export([list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). --export([force_event_refresh/0]). --export([consumers/1, consumers_all/1, consumer_info_keys/0]). --export([basic_get/3, basic_consume/7, basic_cancel/4]). --export([notify_sent/2, unblock/2, flush_all/2]). --export([notify_down_all/2, limit_all/3]). --export([on_node_down/1]). --export([store_queue/1]). - - -%% internal --export([internal_declare/2, internal_delete/1, run_backing_queue/3, - sync_timeout/1, update_ram_duration/1, set_ram_duration_target/2, - set_maximum_since_use/2, maybe_expire/1, drop_expired/1, - emit_stats/1]). - --include("rabbit.hrl"). --include_lib("stdlib/include/qlc.hrl"). - --define(INTEGER_ARG_TYPES, [byte, short, signedint, long]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, qmsg/0]). - --type(name() :: rabbit_types:r('queue')). - --type(qlen() :: rabbit_types:ok(non_neg_integer())). --type(qfun(A) :: fun ((rabbit_types:amqqueue()) -> A)). --type(qmsg() :: {name(), pid(), msg_id(), boolean(), rabbit_types:message()}). --type(msg_id() :: non_neg_integer()). --type(ok_or_errors() :: - 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). - --type(queue_or_not_found() :: rabbit_types:amqqueue() | 'not_found'). - --spec(start/0 :: () -> [name()]). --spec(stop/0 :: () -> 'ok'). --spec(declare/5 :: - (name(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> {'new' | 'existing', rabbit_types:amqqueue()} | - rabbit_types:channel_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:amqqueue()) | - rabbit_types:error('not_found')). --spec(with/2 :: (name(), qfun(A)) -> A | rabbit_types:error('not_found')). --spec(with_or_die/2 :: - (name(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(assert_equivalence/5 :: - (rabbit_types:amqqueue(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> 'ok' | rabbit_types:channel_exit() | - rabbit_types:connection_exit()). --spec(check_exclusive_access/2 :: - (rabbit_types:amqqueue(), pid()) - -> 'ok' | rabbit_types:channel_exit()). --spec(with_exclusive_access_or_die/3 :: - (name(), pid(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:amqqueue()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:amqqueue()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:amqqueue(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 :: (rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(force_event_refresh/0 :: () -> 'ok'). --spec(consumers/1 :: - (rabbit_types:amqqueue()) - -> [{pid(), rabbit_types:ctag(), boolean()}]). --spec(consumer_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(consumers_all/1 :: - (rabbit_types:vhost()) - -> [{name(), pid(), rabbit_types:ctag(), boolean()}]). --spec(stat/1 :: - (rabbit_types:amqqueue()) - -> {'ok', non_neg_integer(), non_neg_integer()}). --spec(emit_stats/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete_immediately/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete/3 :: - (rabbit_types:amqqueue(), 'false', 'false') - -> qlen(); - (rabbit_types:amqqueue(), 'true' , 'false') - -> qlen() | rabbit_types:error('in_use'); - (rabbit_types:amqqueue(), 'false', 'true' ) - -> qlen() | rabbit_types:error('not_empty'); - (rabbit_types:amqqueue(), 'true' , 'true' ) - -> qlen() | - rabbit_types:error('in_use') | - rabbit_types:error('not_empty')). --spec(purge/1 :: (rabbit_types:amqqueue()) -> qlen()). --spec(deliver/2 :: (pid(), rabbit_types:delivery()) -> boolean()). --spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). --spec(ack/3 :: (pid(), [msg_id()], pid()) -> 'ok'). --spec(reject/4 :: (pid(), [msg_id()], boolean(), pid()) -> 'ok'). --spec(notify_down_all/2 :: ([pid()], pid()) -> ok_or_errors()). --spec(limit_all/3 :: ([pid()], pid(), pid() | 'undefined') -> ok_or_errors()). --spec(basic_get/3 :: (rabbit_types:amqqueue(), pid(), boolean()) -> - {'ok', non_neg_integer(), qmsg()} | 'empty'). --spec(basic_consume/7 :: - (rabbit_types:amqqueue(), boolean(), pid(), pid() | 'undefined', - rabbit_types:ctag(), boolean(), any()) - -> rabbit_types:ok_or_error('exclusive_consume_unavailable')). --spec(basic_cancel/4 :: - (rabbit_types:amqqueue(), pid(), rabbit_types:ctag(), any()) -> 'ok'). --spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(flush_all/2 :: ([pid()], pid()) -> 'ok'). --spec(internal_declare/2 :: - (rabbit_types:amqqueue(), boolean()) - -> queue_or_not_found() | rabbit_misc:thunk(queue_or_not_found())). --spec(internal_delete/1 :: - (name()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit() | - fun (() -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit())). --spec(run_backing_queue/3 :: - (pid(), atom(), - (fun ((atom(), A) -> {[rabbit_types:msg_id()], A}))) -> 'ok'). --spec(sync_timeout/1 :: (pid()) -> 'ok'). --spec(update_ram_duration/1 :: (pid()) -> 'ok'). --spec(set_ram_duration_target/2 :: (pid(), number() | 'infinity') -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). --spec(maybe_expire/1 :: (pid()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(pseudo_queue/2 :: (name(), pid()) -> rabbit_types:amqqueue()). - --endif. - -%%---------------------------------------------------------------------------- - --define(CONSUMER_INFO_KEYS, - [queue_name, channel_pid, consumer_tag, ack_required]). - -start() -> - DurableQueues = find_durable_queues(), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:start([QName || #amqqueue{name = QName} <- DurableQueues]), - {ok,_} = supervisor:start_child( - rabbit_sup, - {rabbit_amqqueue_sup, - {rabbit_amqqueue_sup, start_link, []}, - transient, infinity, supervisor, [rabbit_amqqueue_sup]}), - recover_durable_queues(DurableQueues). - -stop() -> - ok = supervisor:terminate_child(rabbit_sup, rabbit_amqqueue_sup), - ok = supervisor:delete_child(rabbit_sup, rabbit_amqqueue_sup), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:stop(). - -find_durable_queues() -> - Node = node(), - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end). - -recover_durable_queues(DurableQueues) -> - Qs = [start_queue_process(node(), Q) || Q <- DurableQueues], - [QName || Q = #amqqueue{name = QName, pid = Pid} <- Qs, - gen_server2:call(Pid, {init, true}, infinity) == {new, Q}]. - -declare(QueueName, Durable, AutoDelete, Args, Owner) -> - ok = check_declare_arguments(QueueName, Args), - {Node, MNodes} = determine_queue_nodes(Args), - Q = start_queue_process(Node, #amqqueue{name = QueueName, - durable = Durable, - auto_delete = AutoDelete, - arguments = Args, - exclusive_owner = Owner, - pid = none, - slave_pids = [], - mirror_nodes = MNodes}), - case gen_server2:call(Q#amqqueue.pid, {init, false}, infinity) of - not_found -> rabbit_misc:not_found(QueueName); - Q1 -> Q1 - end. - -internal_declare(Q, true) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> ok = store_queue(Q), rabbit_misc:const(Q) end); -internal_declare(Q = #amqqueue{name = QueueName}, false) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> - case mnesia:read({rabbit_durable_queue, QueueName}) of - [] -> ok = store_queue(Q), - B = add_default_binding(Q), - fun () -> B(), Q end; - %% Q exists on stopped node - [_] -> rabbit_misc:const(not_found) - end; - [ExistingQ = #amqqueue{pid = QPid}] -> - case rabbit_misc:is_process_alive(QPid) of - true -> rabbit_misc:const(ExistingQ); - false -> TailFun = internal_delete(QueueName), - fun () -> TailFun(), ExistingQ end - end - end - end). - -store_queue(Q = #amqqueue{durable = true}) -> - ok = mnesia:write(rabbit_durable_queue, Q, write), - ok = mnesia:write(rabbit_queue, Q, write), - ok; -store_queue(Q = #amqqueue{durable = false}) -> - ok = mnesia:write(rabbit_queue, Q, write), - ok. - -determine_queue_nodes(Args) -> - Policy = rabbit_misc:table_lookup(Args, <<"x-ha-policy">>), - PolicyParams = rabbit_misc:table_lookup(Args, <<"x-ha-policy-params">>), - case {Policy, PolicyParams} of - {{_Type, <<"nodes">>}, {array, Nodes}} -> - case [list_to_atom(binary_to_list(Node)) || - {longstr, Node} <- Nodes] of - [Node] -> {Node, undefined}; - [First | Rest] -> {First, Rest} - end; - {{_Type, <<"all">>}, _} -> - {node(), all}; - _ -> - {node(), undefined} - end. - -start_queue_process(Node, Q) -> - {ok, Pid} = rabbit_amqqueue_sup:start_child(Node, [Q]), - Q#amqqueue{pid = Pid}. - -add_default_binding(#amqqueue{name = QueueName}) -> - ExchangeName = rabbit_misc:r(QueueName, exchange, <<>>), - RoutingKey = QueueName#resource.name, - rabbit_binding:add(#binding{source = ExchangeName, - destination = QueueName, - key = RoutingKey, - args = []}). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_queue, Name}). - -with(Name, F, E) -> - case lookup(Name) of - {ok, Q = #amqqueue{slave_pids = []}} -> - rabbit_misc:with_exit_handler(E, fun () -> F(Q) end); - {ok, Q} -> - E1 = fun () -> timer:sleep(25), with(Name, F, E) end, - rabbit_misc:with_exit_handler(E1, fun () -> F(Q) end); - {error, not_found} -> - E() - end. - -with(Name, F) -> - with(Name, F, fun () -> {error, not_found} end). -with_or_die(Name, F) -> - with(Name, F, fun () -> rabbit_misc:not_found(Name) end). - -assert_equivalence(#amqqueue{durable = Durable, - auto_delete = AutoDelete} = Q, - Durable, AutoDelete, RequiredArgs, Owner) -> - assert_args_equivalence(Q, RequiredArgs), - check_exclusive_access(Q, Owner, strict); -assert_equivalence(#amqqueue{name = QueueName}, - _Durable, _AutoDelete, _RequiredArgs, _Owner) -> - rabbit_misc:protocol_error( - precondition_failed, "parameters for ~s not equivalent", - [rabbit_misc:rs(QueueName)]). - -check_exclusive_access(Q, Owner) -> check_exclusive_access(Q, Owner, lax). - -check_exclusive_access(#amqqueue{exclusive_owner = Owner}, Owner, _MatchType) -> - ok; -check_exclusive_access(#amqqueue{exclusive_owner = none}, _ReaderPid, lax) -> - ok; -check_exclusive_access(#amqqueue{name = QueueName}, _ReaderPid, _MatchType) -> - rabbit_misc:protocol_error( - resource_locked, - "cannot obtain exclusive access to locked ~s", - [rabbit_misc:rs(QueueName)]). - -with_exclusive_access_or_die(Name, ReaderPid, F) -> - with_or_die(Name, - fun (Q) -> check_exclusive_access(Q, ReaderPid), F(Q) end). - -assert_args_equivalence(#amqqueue{name = QueueName, arguments = Args}, - RequiredArgs) -> - rabbit_misc:assert_args_equivalence( - Args, RequiredArgs, QueueName, - [<<"x-expires">>, <<"x-message-ttl">>, <<"x-ha-policy">>]). - -check_declare_arguments(QueueName, Args) -> - [case Fun(rabbit_misc:table_lookup(Args, Key), Args) of - ok -> ok; - {error, Error} -> rabbit_misc:protocol_error( - precondition_failed, - "invalid arg '~s' for ~s: ~w", - [Key, rabbit_misc:rs(QueueName), Error]) - end || {Key, Fun} <- - [{<<"x-expires">>, fun check_integer_argument/2}, - {<<"x-message-ttl">>, fun check_integer_argument/2}, - {<<"x-ha-policy">>, fun check_ha_policy_argument/2}]], - ok. - -check_integer_argument(undefined, _Args) -> - ok; -check_integer_argument({Type, Val}, _Args) when Val > 0 -> - case lists:member(Type, ?INTEGER_ARG_TYPES) of - true -> ok; - false -> {error, {unacceptable_type, Type}} - end; -check_integer_argument({_Type, Val}, _Args) -> - {error, {value_zero_or_less, Val}}. - -check_ha_policy_argument(undefined, _Args) -> - ok; -check_ha_policy_argument({longstr, <<"all">>}, _Args) -> - ok; -check_ha_policy_argument({longstr, <<"nodes">>}, Args) -> - case rabbit_misc:table_lookup(Args, <<"x-ha-policy-params">>) of - undefined -> - {error, {require, 'x-ha-policy-params'}}; - {array, []} -> - {error, {require_non_empty_list_of_nodes_for_ha}}; - {array, Ary} -> - case lists:all(fun ({longstr, _Node}) -> true; - (_ ) -> false - end, Ary) of - true -> ok; - false -> {error, {require_node_list_as_longstrs_for_ha, Ary}} - end; - {Type, _} -> - {error, {ha_nodes_policy_params_not_array_of_longstr, Type}} - end; -check_ha_policy_argument({longstr, Policy}, _Args) -> - {error, {invalid_ha_policy, Policy}}; -check_ha_policy_argument({Type, _}, _Args) -> - {error, {unacceptable_type, Type}}. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_queue, - #amqqueue{name = rabbit_misc:r(VHostPath, queue), _ = '_'}). - -info_keys() -> rabbit_amqqueue_process:info_keys(). - -map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). - -info(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, info). - -info(#amqqueue{ pid = QPid }, Items) -> - case delegate_call(QPid, {info, Items}) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). - -force_event_refresh() -> - [map(VHost, fun(Q) -> delegate_cast(Q#amqqueue.pid, - force_event_refresh) end) || - VHost <- rabbit_vhost:list()]. - -consumers(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, consumers). - -consumer_info_keys() -> ?CONSUMER_INFO_KEYS. - -consumers_all(VHostPath) -> - ConsumerInfoKeys=consumer_info_keys(), - lists:append( - map(VHostPath, - fun (Q) -> - [lists:zip(ConsumerInfoKeys, - [Q#amqqueue.name, ChPid, ConsumerTag, AckRequired]) || - {ChPid, ConsumerTag, AckRequired} <- consumers(Q)] - end)). - -stat(#amqqueue{pid = QPid}) -> - delegate_call(QPid, stat). - -emit_stats(#amqqueue{pid = QPid}) -> - delegate_cast(QPid, emit_stats). - -delete_immediately(#amqqueue{ pid = QPid }) -> - gen_server2:cast(QPid, delete_immediately). - -delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}). - -purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge). - -deliver(QPid, Delivery = #delivery{immediate = true}) -> - gen_server2:call(QPid, {deliver_immediately, Delivery}, infinity); -deliver(QPid, Delivery = #delivery{mandatory = true}) -> - gen_server2:call(QPid, {deliver, Delivery}, infinity), - true; -deliver(QPid, Delivery) -> - gen_server2:cast(QPid, {deliver, Delivery}), - true. - -requeue(QPid, MsgIds, ChPid) -> - delegate_call(QPid, {requeue, MsgIds, ChPid}). - -ack(QPid, MsgIds, ChPid) -> - delegate_cast(QPid, {ack, MsgIds, ChPid}). - -reject(QPid, MsgIds, Requeue, ChPid) -> - delegate_cast(QPid, {reject, MsgIds, Requeue, ChPid}). - -notify_down_all(QPids, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, infinity) end, - QPids). - -limit_all(QPids, ChPid, LimiterPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> - gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) - end). - -basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> - delegate_call(QPid, {basic_get, ChPid, NoAck}). - -basic_consume(#amqqueue{pid = QPid}, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg) -> - delegate_call(QPid, {basic_consume, NoAck, ChPid, - LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg}). - -basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> - ok = delegate_call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}). - -notify_sent(QPid, ChPid) -> - gen_server2:cast(QPid, {notify_sent, ChPid}). - -unblock(QPid, ChPid) -> - delegate_cast(QPid, {unblock, ChPid}). - -flush_all(QPids, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). - -internal_delete1(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - ok = mnesia:delete({rabbit_durable_queue, QueueName}), - %% we want to execute some things, as decided by rabbit_exchange, - %% after the transaction. - rabbit_binding:remove_for_destination(QueueName). - -internal_delete(QueueName) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> rabbit_misc:const({error, not_found}); - [_] -> Deletions = internal_delete1(QueueName), - rabbit_binding:process_deletions(Deletions) - end - end). - -run_backing_queue(QPid, Mod, Fun) -> - gen_server2:cast(QPid, {run_backing_queue, Mod, Fun}). - -sync_timeout(QPid) -> - gen_server2:cast(QPid, sync_timeout). - -update_ram_duration(QPid) -> - gen_server2:cast(QPid, update_ram_duration). - -set_ram_duration_target(QPid, Duration) -> - gen_server2:cast(QPid, {set_ram_duration_target, Duration}). - -set_maximum_since_use(QPid, Age) -> - gen_server2:cast(QPid, {set_maximum_since_use, Age}). - -maybe_expire(QPid) -> - gen_server2:cast(QPid, maybe_expire). - -drop_expired(QPid) -> - gen_server2:cast(QPid, drop_expired). - -on_node_down(Node) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> Dels = qlc:e(qlc:q([delete_queue(QueueName) || - #amqqueue{name = QueueName, pid = Pid, - slave_pids = []} - <- mnesia:table(rabbit_queue), - node(Pid) == Node])), - rabbit_binding:process_deletions( - lists:foldl(fun rabbit_binding:combine_deletions/2, - rabbit_binding:new_deletions(), Dels)) - end). - -delete_queue(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - rabbit_binding:remove_transient_for_destination(QueueName). - -pseudo_queue(QueueName, Pid) -> - #amqqueue{name = QueueName, - durable = false, - auto_delete = false, - arguments = [], - pid = Pid, - slave_pids = [], - mirror_nodes = undefined}. - -safe_delegate_call_ok(F, Pids) -> - case delegate:invoke(Pids, fun (Pid) -> - rabbit_misc:with_exit_handler( - fun () -> ok end, - fun () -> F(Pid) end) - end) of - {_, []} -> ok; - {_, Bad} -> {error, Bad} - end. - -delegate_call(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> gen_server2:call(P, Msg, infinity) end). - -delegate_cast(Pid, Msg) -> - delegate:invoke_no_result(Pid, fun (P) -> gen_server2:cast(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl deleted file mode 100644 index c7e36283..00000000 --- a/src/rabbit_amqqueue_process.erl +++ /dev/null @@ -1,1185 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_process). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(gen_server2). - --define(UNSENT_MESSAGE_LIMIT, 100). --define(SYNC_INTERVAL, 25). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). - --define(BASE_MESSAGE_PROPERTIES, - #message_properties{expiry = undefined, needs_confirming = false}). - --export([start_link/1, info_keys/0]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2, format_message_queue/2]). - --export([init_with_backing_queue_state/7]). - -%% Queue's state --record(q, {q, - exclusive_consumer, - has_had_consumers, - backing_queue, - backing_queue_state, - active_consumers, - blocked_consumers, - expires, - sync_timer_ref, - rate_timer_ref, - expiry_timer_ref, - stats_timer, - msg_id_to_channel, - ttl, - ttl_timer_ref - }). - --record(consumer, {tag, ack_required}). - -%% These are held in our process dictionary --record(cr, {consumer_count, - ch_pid, - limiter_pid, - monitor_ref, - acktags, - is_limit_active, - unsent_message_count}). - --define(STATISTICS_KEYS, - [pid, - exclusive_consumer_pid, - exclusive_consumer_tag, - messages_ready, - messages_unacknowledged, - messages, - consumers, - memory, - backing_queue_status, - slave_pids - ]). - --define(CREATION_EVENT_KEYS, - [pid, - name, - durable, - auto_delete, - arguments, - owner_pid, - mirror_nodes - ]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - -start_link(Q) -> gen_server2:start_link(?MODULE, Q, []). - -info_keys() -> ?INFO_KEYS. - -%%---------------------------------------------------------------------------- - -init(Q) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - process_flag(trap_exit, true), - - {ok, #q{q = Q#amqqueue{pid = self()}, - exclusive_consumer = none, - has_had_consumers = false, - backing_queue = backing_queue_module(Q), - backing_queue_state = undefined, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - expires = undefined, - sync_timer_ref = undefined, - rate_timer_ref = undefined, - expiry_timer_ref = undefined, - ttl = undefined, - stats_timer = rabbit_event:init_stats_timer(), - msg_id_to_channel = dict:new()}, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -init_with_backing_queue_state(Q = #amqqueue{exclusive_owner = Owner}, BQ, BQS, - RateTRef, AckTags, Deliveries, MTC) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - case Owner of - none -> ok; - _ -> erlang:monitor(process, Owner) - end, - State = requeue_and_run( - AckTags, - process_args( - #q{q = Q, - exclusive_consumer = none, - has_had_consumers = false, - backing_queue = BQ, - backing_queue_state = BQS, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - expires = undefined, - sync_timer_ref = undefined, - rate_timer_ref = RateTRef, - expiry_timer_ref = undefined, - ttl = undefined, - stats_timer = rabbit_event:init_stats_timer(), - msg_id_to_channel = MTC})), - lists:foldl( - fun (Delivery, StateN) -> deliver_or_enqueue(Delivery, StateN) end, - State, Deliveries). - -terminate(shutdown = R, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(R, BQS) end, State); -terminate({shutdown, _} = R, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(R, BQS) end, State); -terminate(Reason, State = #q{backing_queue = BQ}) -> - %% FIXME: How do we cancel active subscriptions? - terminate_shutdown(fun (BQS) -> - rabbit_event:notify( - queue_deleted, [{pid, self()}]), - BQS1 = BQ:delete_and_terminate(Reason, BQS), - %% don't care if the internal delete - %% doesn't return 'ok'. - rabbit_amqqueue:internal_delete(qname(State)), - BQS1 - end, State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -declare(Recover, From, - State = #q{q = Q, backing_queue = BQ, backing_queue_state = undefined, - stats_timer = StatsTimer}) -> - case rabbit_amqqueue:internal_declare(Q, Recover) of - not_found -> {stop, normal, not_found, State}; - Q -> gen_server2:reply(From, {new, Q}), - ok = file_handle_cache:register_callback( - rabbit_amqqueue, set_maximum_since_use, - [self()]), - ok = rabbit_memory_monitor:register( - self(), {rabbit_amqqueue, - set_ram_duration_target, [self()]}), - BQS = bq_init(BQ, Q, Recover), - State1 = process_args(State#q{backing_queue_state = BQS}), - rabbit_event:notify(queue_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> emit_stats(State1) end), - noreply(State1); - Q1 -> {stop, normal, {existing, Q1}, State} - end. - -bq_init(BQ, Q, Recover) -> - Self = self(), - BQ:init(Q, Recover, - fun (Mod, Fun) -> - rabbit_amqqueue:run_backing_queue(Self, Mod, Fun) - end). - -process_args(State = #q{q = #amqqueue{arguments = Arguments}}) -> - lists:foldl(fun({Arg, Fun}, State1) -> - case rabbit_misc:table_lookup(Arguments, Arg) of - {_Type, Val} -> Fun(Val, State1); - undefined -> State1 - end - end, State, [{<<"x-expires">>, fun init_expires/2}, - {<<"x-message-ttl">>, fun init_ttl/2}]). - -init_expires(Expires, State) -> ensure_expiry_timer(State#q{expires = Expires}). - -init_ttl(TTL, State) -> drop_expired_messages(State#q{ttl = TTL}). - -terminate_shutdown(Fun, State) -> - State1 = #q{backing_queue_state = BQS} = - stop_sync_timer(stop_rate_timer(State)), - case BQS of - undefined -> State1; - _ -> ok = rabbit_memory_monitor:deregister(self()), - [emit_consumer_deleted(Ch, CTag) - || {Ch, CTag, _} <- consumers(State1)], - State1#q{backing_queue_state = Fun(BQS)} - end. - -reply(Reply, NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {reply, Reply, NewState1, Timeout}. - -noreply(NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {noreply, NewState1, Timeout}. - -next_state(State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - {MsgIds, BQS1} = BQ:drain_confirmed(BQS), - State1 = ensure_stats_timer( - ensure_rate_timer( - confirm_messages(MsgIds, State#q{ - backing_queue_state = BQS1}))), - case BQ:needs_timeout(BQS1) of - false -> {stop_sync_timer(State1), hibernate}; - idle -> {stop_sync_timer(State1), 0 }; - timed -> {ensure_sync_timer(State1), 0 } - end. - -backing_queue_module(#amqqueue{arguments = Args}) -> - case rabbit_misc:table_lookup(Args, <<"x-ha-policy">>) of - undefined -> {ok, BQM} = application:get_env(backing_queue_module), - BQM; - _Policy -> rabbit_mirror_queue_master - end. - -ensure_sync_timer(State = #q{sync_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?SYNC_INTERVAL, rabbit_amqqueue, sync_timeout, [self()]), - State#q{sync_timer_ref = TRef}; -ensure_sync_timer(State) -> - State. - -stop_sync_timer(State = #q{sync_timer_ref = undefined}) -> - State; -stop_sync_timer(State = #q{sync_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{sync_timer_ref = undefined}. - -ensure_rate_timer(State = #q{rate_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), - State#q{rate_timer_ref = TRef}; -ensure_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -ensure_rate_timer(State) -> - State. - -stop_rate_timer(State = #q{rate_timer_ref = undefined}) -> - State; -stop_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{rate_timer_ref = undefined}. - -stop_expiry_timer(State = #q{expiry_timer_ref = undefined}) -> - State; -stop_expiry_timer(State = #q{expiry_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{expiry_timer_ref = undefined}. - -%% We wish to expire only when there are no consumers *and* the expiry -%% hasn't been refreshed (by queue.declare or basic.get) for the -%% configured period. -ensure_expiry_timer(State = #q{expires = undefined}) -> - State; -ensure_expiry_timer(State = #q{expires = Expires}) -> - case is_unused(State) of - true -> - NewState = stop_expiry_timer(State), - {ok, TRef} = timer:apply_after( - Expires, rabbit_amqqueue, maybe_expire, [self()]), - NewState#q{expiry_timer_ref = TRef}; - false -> - State - end. - -ensure_stats_timer(State = #q{stats_timer = StatsTimer, - q = Q}) -> - State#q{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> rabbit_amqqueue:emit_stats(Q) end)}. - -assert_invariant(#q{active_consumers = AC, - backing_queue = BQ, backing_queue_state = BQS}) -> - true = (queue:is_empty(AC) orelse BQ:is_empty(BQS)). - -lookup_ch(ChPid) -> - case get({ch, ChPid}) of - undefined -> not_found; - C -> C - end. - -ch_record(ChPid) -> - Key = {ch, ChPid}, - case get(Key) of - undefined -> MonitorRef = erlang:monitor(process, ChPid), - C = #cr{consumer_count = 0, - ch_pid = ChPid, - monitor_ref = MonitorRef, - acktags = sets:new(), - is_limit_active = false, - unsent_message_count = 0}, - put(Key, C), - C; - C = #cr{} -> C - end. - -store_ch_record(C = #cr{ch_pid = ChPid}) -> - put({ch, ChPid}, C). - -maybe_store_ch_record(C = #cr{consumer_count = ConsumerCount, - acktags = ChAckTags, - unsent_message_count = UnsentMessageCount}) -> - case {sets:size(ChAckTags), ConsumerCount, UnsentMessageCount} of - {0, 0, 0} -> ok = erase_ch_record(C), - false; - _ -> store_ch_record(C), - true - end. - -erase_ch_record(#cr{ch_pid = ChPid, - limiter_pid = LimiterPid, - monitor_ref = MonitorRef}) -> - ok = rabbit_limiter:unregister(LimiterPid, self()), - erlang:demonitor(MonitorRef), - erase({ch, ChPid}), - ok. - -all_ch_record() -> [C || {{ch, _}, C} <- get()]. - -is_ch_blocked(#cr{unsent_message_count = Count, is_limit_active = Limited}) -> - Limited orelse Count >= ?UNSENT_MESSAGE_LIMIT. - -ch_record_state_transition(OldCR, NewCR) -> - case {is_ch_blocked(OldCR), is_ch_blocked(NewCR)} of - {true, false} -> unblock; - {false, true} -> block; - {_, _} -> ok - end. - -deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - case queue:out(ActiveConsumers) of - {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}}, - ActiveConsumersTail} -> - C = #cr{limiter_pid = LimiterPid, - unsent_message_count = Count, - acktags = ChAckTags} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of - true -> - {{Message, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), AckTag, IsDelivered, Message}), - ChAckTags1 = - case AckRequired of - true -> sets:add_element(AckTag, ChAckTags); - false -> ChAckTags - end, - NewC = C#cr{unsent_message_count = Count + 1, - acktags = ChAckTags1}, - true = maybe_store_ch_record(NewC), - {NewActiveConsumers, NewBlockedConsumers} = - case ch_record_state_transition(C, NewC) of - ok -> {queue:in(QEntry, ActiveConsumersTail), - BlockedConsumers}; - block -> {ActiveConsumers1, BlockedConsumers1} = - move_consumers(ChPid, - ActiveConsumersTail, - BlockedConsumers), - {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} - end, - State2 = State1#q{ - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}, - deliver_msgs_to_consumers(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> - true = maybe_store_ch_record(C#cr{is_limit_active = true}), - {NewActiveConsumers, NewBlockedConsumers} = - move_consumers(ChPid, - ActiveConsumers, - BlockedConsumers), - deliver_msgs_to_consumers( - Funs, FunAcc, - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} - end; - {empty, _} -> - {FunAcc, State} - end. - -deliver_from_queue_pred(IsEmpty, _State) -> not IsEmpty. - -deliver_from_queue_deliver(AckRequired, false, State) -> - {{Message, IsDelivered, AckTag, Remaining}, State1} = - fetch(AckRequired, State), - {{Message, IsDelivered, AckTag}, 0 == Remaining, State1}. - -confirm_messages([], State) -> - State; -confirm_messages(MsgIds, State = #q{msg_id_to_channel = MTC}) -> - {CMs, MTC1} = lists:foldl( - fun(MsgId, {CMs, MTC0}) -> - case dict:find(MsgId, MTC0) of - {ok, {ChPid, MsgSeqNo}} -> - {gb_trees_cons(ChPid, MsgSeqNo, CMs), - dict:erase(MsgId, MTC0)}; - _ -> - {CMs, MTC0} - end - end, {gb_trees:empty(), MTC}, MsgIds), - gb_trees_foreach(fun rabbit_channel:confirm/2, CMs), - State#q{msg_id_to_channel = MTC1}. - -gb_trees_foreach(_, none) -> - ok; -gb_trees_foreach(Fun, {Key, Val, It}) -> - Fun(Key, Val), - gb_trees_foreach(Fun, gb_trees:next(It)); -gb_trees_foreach(Fun, Tree) -> - gb_trees_foreach(Fun, gb_trees:next(gb_trees:iterator(Tree))). - -gb_trees_cons(Key, Value, Tree) -> - case gb_trees:lookup(Key, Tree) of - {value, Values} -> gb_trees:update(Key, [Value | Values], Tree); - none -> gb_trees:insert(Key, [Value], Tree) - end. - -should_confirm_message(#delivery{msg_seq_no = undefined}, _State) -> - never; -should_confirm_message(#delivery{sender = ChPid, - msg_seq_no = MsgSeqNo, - message = #basic_message { - is_persistent = true, - id = MsgId}}, - #q{q = #amqqueue{durable = true}}) -> - {eventually, ChPid, MsgSeqNo, MsgId}; -should_confirm_message(_Delivery, _State) -> - immediately. - -needs_confirming({eventually, _, _, _}) -> true; -needs_confirming(_) -> false. - -maybe_record_confirm_message({eventually, ChPid, MsgSeqNo, MsgId}, - State = #q{msg_id_to_channel = MTC}) -> - State#q{msg_id_to_channel = dict:store(MsgId, {ChPid, MsgSeqNo}, MTC)}; -maybe_record_confirm_message(_Confirm, State) -> - State. - -run_message_queue(State) -> - Funs = {fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3}, - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - drop_expired_messages(State), - IsEmpty = BQ:is_empty(BQS), - {_IsEmpty1, State2} = deliver_msgs_to_consumers(Funs, IsEmpty, State1), - State2. - -attempt_delivery(Delivery = #delivery{sender = ChPid, - message = Message, - msg_seq_no = MsgSeqNo}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - Confirm = should_confirm_message(Delivery, State), - case Confirm of - immediately -> rabbit_channel:confirm(ChPid, [MsgSeqNo]); - _ -> ok - end, - case BQ:is_duplicate(Message, BQS) of - {false, BQS1} -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, - State1 = #q{backing_queue_state = BQS2}) -> - %% we don't need an expiry here because - %% messages are not being enqueued, so we use - %% an empty message_properties. - {AckTag, BQS3} = - BQ:publish_delivered( - AckRequired, Message, - (?BASE_MESSAGE_PROPERTIES)#message_properties{ - needs_confirming = needs_confirming(Confirm)}, - ChPid, BQS2), - {{Message, false, AckTag}, true, - State1#q{backing_queue_state = BQS3}} - end, - {Delivered, State2} = - deliver_msgs_to_consumers({ PredFun, DeliverFun }, false, - State#q{backing_queue_state = BQS1}), - {Delivered, Confirm, State2}; - {Duplicate, BQS1} -> - %% if the message has previously been seen by the BQ then - %% it must have been seen under the same circumstances as - %% now: i.e. if it is now a deliver_immediately then it - %% must have been before. - Delivered = case Duplicate of - published -> true; - discarded -> false - end, - {Delivered, Confirm, State#q{backing_queue_state = BQS1}} - end. - -deliver_or_enqueue(Delivery = #delivery{message = Message, - sender = ChPid}, State) -> - {Delivered, Confirm, State1} = attempt_delivery(Delivery, State), - State2 = #q{backing_queue = BQ, backing_queue_state = BQS} = - maybe_record_confirm_message(Confirm, State1), - case Delivered of - true -> State2; - false -> BQS1 = - BQ:publish(Message, - (message_properties(State)) #message_properties{ - needs_confirming = needs_confirming(Confirm)}, - ChPid, BQS), - ensure_ttl_timer(State2#q{backing_queue_state = BQS1}) - end. - -requeue_and_run(AckTags, State = #q{backing_queue = BQ, ttl=TTL}) -> - run_backing_queue( - BQ, fun (M, BQS) -> - {_MsgIds, BQS1} = - M:requeue(AckTags, reset_msg_expiry_fun(TTL), BQS), - BQS1 - end, State). - -fetch(AckRequired, State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - {Result, BQS1} = BQ:fetch(AckRequired, BQS), - {Result, State#q{backing_queue_state = BQS1}}. - -add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). - -remove_consumer(ChPid, ConsumerTag, Queue) -> - queue:filter(fun ({CP, #consumer{tag = CT}}) -> - (CP /= ChPid) or (CT /= ConsumerTag) - end, Queue). - -remove_consumers(ChPid, Queue) -> - {Kept, Removed} = split_by_channel(ChPid, Queue), - [emit_consumer_deleted(Ch, CTag) || - {Ch, #consumer{tag = CTag}} <- queue:to_list(Removed)], - Kept. - -move_consumers(ChPid, From, To) -> - {Kept, Removed} = split_by_channel(ChPid, From), - {Kept, queue:join(To, Removed)}. - -split_by_channel(ChPid, Queue) -> - {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, - queue:to_list(Queue)), - {queue:from_list(Kept), queue:from_list(Removed)}. - -possibly_unblock(State, ChPid, Update) -> - case lookup_ch(ChPid) of - not_found -> - State; - C -> - NewC = Update(C), - maybe_store_ch_record(NewC), - case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> {NewBlockedConsumers, NewActiveConsumers} = - move_consumers(ChPid, - State#q.blocked_consumers, - State#q.active_consumers), - run_message_queue( - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}) - end - end. - -should_auto_delete(#q{q = #amqqueue{auto_delete = false}}) -> false; -should_auto_delete(#q{has_had_consumers = false}) -> false; -should_auto_delete(State) -> is_unused(State). - -handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(DownPid) of - not_found -> - {ok, State}; - C = #cr{ch_pid = ChPid, acktags = ChAckTags} -> - ok = erase_ch_record(C), - State1 = State#q{ - exclusive_consumer = case Holder of - {ChPid, _} -> none; - Other -> Other - end, - active_consumers = remove_consumers( - ChPid, State#q.active_consumers), - blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, - case should_auto_delete(State1) of - true -> {stop, State1}; - false -> {ok, requeue_and_run(sets:to_list(ChAckTags), - ensure_expiry_timer(State1))} - end - end. - -cancel_holder(ChPid, ConsumerTag, {ChPid, ConsumerTag}) -> - none; -cancel_holder(_ChPid, _ConsumerTag, Holder) -> - Holder. - -check_exclusive_access({_ChPid, _ConsumerTag}, _ExclusiveConsume, _State) -> - in_use; -check_exclusive_access(none, false, _State) -> - ok; -check_exclusive_access(none, true, State) -> - case is_unused(State) of - true -> ok; - false -> in_use - end. - -is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso - queue:is_empty(State#q.blocked_consumers). - -maybe_send_reply(_ChPid, undefined) -> ok; -maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). - -qname(#q{q = #amqqueue{name = QName}}) -> QName. - -backing_queue_timeout(State = #q{backing_queue = BQ}) -> - run_backing_queue(BQ, fun (M, BQS) -> M:timeout(BQS) end, State). - -run_backing_queue(Mod, Fun, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - run_message_queue(State#q{backing_queue_state = BQ:invoke(Mod, Fun, BQS)}). - -subtract_acks(A, B) when is_list(B) -> - lists:foldl(fun sets:del_element/2, A, B). - -discard_delivery(#delivery{sender = ChPid, - message = Message}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - State#q{backing_queue_state = BQ:discard(Message, ChPid, BQS)}. - -reset_msg_expiry_fun(TTL) -> - fun(MsgProps) -> - MsgProps#message_properties{expiry = calculate_msg_expiry(TTL)} - end. - -message_properties(#q{ttl=TTL}) -> - #message_properties{expiry = calculate_msg_expiry(TTL)}. - -calculate_msg_expiry(undefined) -> undefined; -calculate_msg_expiry(TTL) -> now_micros() + (TTL * 1000). - -drop_expired_messages(State = #q{ttl = undefined}) -> - State; -drop_expired_messages(State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - Now = now_micros(), - BQS1 = BQ:dropwhile( - fun (#message_properties{expiry = Expiry}) -> Now > Expiry end, - BQS), - ensure_ttl_timer(State#q{backing_queue_state = BQS1}). - -ensure_ttl_timer(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL, - ttl_timer_ref = undefined}) - when TTL =/= undefined -> - case BQ:is_empty(BQS) of - true -> State; - false -> TRef = timer:apply_after(TTL, rabbit_amqqueue, drop_expired, - [self()]), - State#q{ttl_timer_ref = TRef} - end; -ensure_ttl_timer(State) -> - State. - -now_micros() -> timer:now_diff(now(), {0,0,0}). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(name, #q{q = #amqqueue{name = Name}}) -> Name; -i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; -i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; -i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(pid, _) -> - self(); -i(owner_pid, #q{q = #amqqueue{exclusive_owner = none}}) -> - ''; -i(owner_pid, #q{q = #amqqueue{exclusive_owner = ExclusiveOwner}}) -> - ExclusiveOwner; -i(exclusive_consumer_pid, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_pid, #q{exclusive_consumer = {ChPid, _ConsumerTag}}) -> - ChPid; -i(exclusive_consumer_tag, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_tag, #q{exclusive_consumer = {_ChPid, ConsumerTag}}) -> - ConsumerTag; -i(messages_ready, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:len(BQS); -i(messages_unacknowledged, _) -> - lists:sum([sets:size(C#cr.acktags) || C <- all_ch_record()]); -i(messages, State) -> - lists:sum([i(Item, State) || Item <- [messages_ready, - messages_unacknowledged]]); -i(consumers, State) -> - queue:len(State#q.active_consumers) + queue:len(State#q.blocked_consumers); -i(memory, _) -> - {memory, M} = process_info(self(), memory), - M; -i(backing_queue_status, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:status(BQS); -i(slave_pids, #q{q = #amqqueue{name = Name}}) -> - {ok, #amqqueue{slave_pids = SPids}} = rabbit_amqqueue:lookup(Name), - SPids; -i(mirror_nodes, #q{q = #amqqueue{name = Name}}) -> - {ok, #amqqueue{mirror_nodes = MNodes}} = rabbit_amqqueue:lookup(Name), - MNodes; -i(Item, _) -> - throw({bad_argument, Item}). - -consumers(#q{active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - rabbit_misc:queue_fold( - fun ({ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}, Acc) -> - [{ChPid, ConsumerTag, AckRequired} | Acc] - end, [], queue:join(ActiveConsumers, BlockedConsumers)). - -emit_stats(State) -> - emit_stats(State, []). - -emit_stats(State, Extra) -> - rabbit_event:notify(queue_stats, Extra ++ infos(?STATISTICS_KEYS, State)). - -emit_consumer_created(ChPid, ConsumerTag, Exclusive, AckRequired) -> - emit_consumer_event(ChPid, ConsumerTag, Exclusive, AckRequired, - consumer_created). - -emit_consumer_exists(ChPid, ConsumerTag, Exclusive, AckRequired) -> - emit_consumer_event(ChPid, ConsumerTag, Exclusive, AckRequired, - consumer_exists). - -emit_consumer_event(ChPid, ConsumerTag, Exclusive, AckRequired, Type) -> - rabbit_event:notify(Type, - [{consumer_tag, ConsumerTag}, - {exclusive, Exclusive}, - {ack_required, AckRequired}, - {channel, ChPid}, - {queue, self()}]). - -emit_consumer_deleted(ChPid, ConsumerTag) -> - rabbit_event:notify(consumer_deleted, - [{consumer_tag, ConsumerTag}, - {channel, ChPid}, - {queue, self()}]). - -%%---------------------------------------------------------------------------- - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - consumers -> 9; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - update_ram_duration -> 8; - delete_immediately -> 8; - {set_ram_duration_target, _Duration} -> 8; - {set_maximum_since_use, _Age} -> 8; - maybe_expire -> 8; - drop_expired -> 8; - emit_stats -> 7; - {ack, _AckTags, _ChPid} -> 7; - {reject, _AckTags, _Requeue, _ChPid} -> 7; - {notify_sent, _ChPid} -> 7; - {unblock, _ChPid} -> 7; - {run_backing_queue, _Mod, _Fun} -> 6; - sync_timeout -> 6; - _ -> 0 - end. - -prioritise_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - #q{q = #amqqueue{exclusive_owner = DownPid}}) -> 8; -prioritise_info(_Msg, _State) -> 0. - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = none}}) -> - declare(Recover, From, State); - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = Owner}}) -> - case rabbit_misc:is_process_alive(Owner) of - true -> erlang:monitor(process, Owner), - declare(Recover, From, State); - false -> #q{backing_queue = BQ, backing_queue_state = undefined, - q = #amqqueue{name = QName} = Q} = State, - gen_server2:reply(From, not_found), - case Recover of - true -> ok; - _ -> rabbit_log:warning( - "Queue ~p exclusive owner went away~n", [QName]) - end, - BQS = bq_init(BQ, Q, Recover), - %% Rely on terminate to delete the queue. - {stop, normal, State#q{backing_queue_state = BQS}} - end; - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(consumers, _From, State) -> - reply(consumers(State), State); - -handle_call({deliver_immediately, Delivery}, _From, State) -> - %% Synchronous, "immediate" delivery mode - %% - %% FIXME: Is this correct semantics? - %% - %% I'm worried in particular about the case where an exchange has - %% two queues against a particular routing key, and a message is - %% sent in immediate mode through the binding. In non-immediate - %% mode, both queues get the message, saving it for later if - %% there's noone ready to receive it just now. In immediate mode, - %% should both queues still get the message, somehow, or should - %% just all ready-to-consume queues get the message, with unready - %% queues discarding the message? - %% - {Delivered, Confirm, State1} = attempt_delivery(Delivery, State), - reply(Delivered, case Delivered of - true -> maybe_record_confirm_message(Confirm, State1); - false -> discard_delivery(Delivery, State1) - end); - -handle_call({deliver, Delivery}, From, State) -> - %% Synchronous, "mandatory" delivery mode. Reply asap. - gen_server2:reply(From, true), - noreply(deliver_or_enqueue(Delivery, State)); - -handle_call({notify_down, ChPid}, _From, State) -> - %% we want to do this synchronously, so that auto_deleted queues - %% are no longer visible by the time we send a response to the - %% client. The queue is ultimately deleted in terminate/2; if we - %% return stop with a reply, terminate/2 will be called by - %% gen_server2 *before* the reply is sent. - case handle_ch_down(ChPid, State) of - {ok, NewState} -> reply(ok, NewState); - {stop, NewState} -> {stop, normal, ok, NewState} - end; - -handle_call({basic_get, ChPid, NoAck}, _From, - State = #q{q = #amqqueue{name = QName}}) -> - AckRequired = not NoAck, - State1 = ensure_expiry_timer(State), - case fetch(AckRequired, drop_expired_messages(State1)) of - {empty, State2} -> - reply(empty, State2); - {{Message, IsDelivered, AckTag, Remaining}, State2} -> - State3 = - case AckRequired of - true -> C = #cr{acktags = ChAckTags} = ch_record(ChPid), - true = maybe_store_ch_record( - C#cr{acktags = - sets:add_element(AckTag, - ChAckTags)}), - State2; - false -> State2 - end, - Msg = {QName, self(), AckTag, IsDelivered, Message}, - reply({ok, Remaining, Msg}, State3) - end; - -handle_call({basic_consume, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg}, - _From, State = #q{exclusive_consumer = ExistingHolder}) -> - case check_exclusive_access(ExistingHolder, ExclusiveConsume, - State) of - in_use -> - reply({error, exclusive_consume_unavailable}, State); - ok -> - C = #cr{consumer_count = ConsumerCount} = ch_record(ChPid), - Consumer = #consumer{tag = ConsumerTag, - ack_required = not NoAck}, - true = maybe_store_ch_record(C#cr{consumer_count = ConsumerCount +1, - limiter_pid = LimiterPid}), - ok = case ConsumerCount of - 0 -> rabbit_limiter:register(LimiterPid, self()); - _ -> ok - end, - ExclusiveConsumer = if ExclusiveConsume -> {ChPid, ConsumerTag}; - true -> ExistingHolder - end, - State1 = State#q{has_had_consumers = true, - exclusive_consumer = ExclusiveConsumer}, - ok = maybe_send_reply(ChPid, OkMsg), - State2 = - case is_ch_blocked(C) of - true -> State1#q{ - blocked_consumers = - add_consumer(ChPid, Consumer, - State1#q.blocked_consumers)}; - false -> run_message_queue( - State1#q{ - active_consumers = - add_consumer(ChPid, Consumer, - State1#q.active_consumers)}) - end, - emit_consumer_created(ChPid, ConsumerTag, ExclusiveConsume, - not NoAck), - reply(ok, State2) - end; - -handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, - State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(ChPid) of - not_found -> - ok = maybe_send_reply(ChPid, OkMsg), - reply(ok, State); - C = #cr{consumer_count = ConsumerCount, - limiter_pid = LimiterPid} -> - C1 = C#cr{consumer_count = ConsumerCount -1}, - maybe_store_ch_record( - case ConsumerCount of - 1 -> ok = rabbit_limiter:unregister(LimiterPid, self()), - C1#cr{limiter_pid = undefined}; - _ -> C1 - end), - emit_consumer_deleted(ChPid, ConsumerTag), - ok = maybe_send_reply(ChPid, OkMsg), - NewState = - State#q{exclusive_consumer = cancel_holder(ChPid, - ConsumerTag, - Holder), - active_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.active_consumers), - blocked_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.blocked_consumers)}, - case should_auto_delete(NewState) of - false -> reply(ok, ensure_expiry_timer(NewState)); - true -> {stop, normal, ok, NewState} - end - end; - -handle_call(stat, _From, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS, - active_consumers = ActiveConsumers} = - drop_expired_messages(ensure_expiry_timer(State)), - reply({ok, BQ:len(BQS), queue:len(ActiveConsumers)}, State1); - -handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q{backing_queue_state = BQS, backing_queue = BQ}) -> - IsEmpty = BQ:is_empty(BQS), - IsUnused = is_unused(State), - if - IfEmpty and not(IsEmpty) -> - reply({error, not_empty}, State); - IfUnused and not(IsUnused) -> - reply({error, in_use}, State); - true -> - {stop, normal, {ok, BQ:len(BQS)}, State} - end; - -handle_call(purge, _From, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {Count, BQS1} = BQ:purge(BQS), - reply({ok, Count}, State#q{backing_queue_state = BQS1}); - -handle_call({requeue, AckTags, ChPid}, From, State) -> - gen_server2:reply(From, ok), - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(requeue_and_run(AckTags, State)) - end. - -handle_cast({run_backing_queue, Mod, Fun}, State) -> - noreply(run_backing_queue(Mod, Fun, State)); - -handle_cast(sync_timeout, State) -> - noreply(backing_queue_timeout(State#q{sync_timer_ref = undefined})); - -handle_cast({deliver, Delivery}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - noreply(deliver_or_enqueue(Delivery, State)); - -handle_cast({ack, AckTags, ChPid}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - maybe_store_ch_record(C#cr{acktags = subtract_acks( - ChAckTags, AckTags)}), - {_Guids, BQS1} = BQ:ack(AckTags, BQS), - noreply(State#q{backing_queue_state = BQS1}) - end; - -handle_cast({reject, AckTags, Requeue, ChPid}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(case Requeue of - true -> requeue_and_run(AckTags, State); - false -> {_Guids, BQS1} = BQ:ack(AckTags, BQS), - State#q{backing_queue_state = BQS1} - end) - end; - -handle_cast(delete_immediately, State) -> - {stop, normal, State}; - -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - -handle_cast({notify_sent, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C = #cr{unsent_message_count = Count}) -> - C#cr{unsent_message_count = Count - 1} - end)); - -handle_cast({limit, ChPid, LimiterPid}, State) -> - noreply( - possibly_unblock( - State, ChPid, - fun (C = #cr{consumer_count = ConsumerCount, - limiter_pid = OldLimiterPid, - is_limit_active = Limited}) -> - if ConsumerCount =/= 0 andalso OldLimiterPid == undefined -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, - NewLimited = Limited andalso LimiterPid =/= undefined, - C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({flush, ChPid}, State) -> - ok = rabbit_channel:flushed(ChPid, self()), - noreply(State); - -handle_cast(update_ram_duration, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State#q{rate_timer_ref = just_measured, - backing_queue_state = BQS2}); - -handle_cast({set_ram_duration_target, Duration}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - BQS1 = BQ:set_ram_duration_target(Duration, BQS), - noreply(State#q{backing_queue_state = BQS1}); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_cast(maybe_expire, State) -> - case is_unused(State) of - true -> ?LOGDEBUG("Queue lease expired for ~p~n", [State#q.q]), - {stop, normal, State}; - false -> noreply(ensure_expiry_timer(State)) - end; - -handle_cast(drop_expired, State) -> - noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); - -handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> - %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), - State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - assert_invariant(State1), - {noreply, State1, hibernate}; - -handle_cast(force_event_refresh, State = #q{exclusive_consumer = Exclusive}) -> - rabbit_event:notify(queue_exists, infos(?CREATION_EVENT_KEYS, State)), - case Exclusive of - none -> [emit_consumer_exists(Ch, CTag, false, AckRequired) || - {Ch, CTag, AckRequired} <- consumers(State)]; - _ -> [emit_consumer_exists(Ch, CTag, true, AckRequired) || - {Ch, CTag, AckRequired} <- consumers(State), - Exclusive = {Ch, CTag}] - end, - noreply(State). - -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> - %% Exclusively owned queues must disappear with their owner. In - %% the case of clean shutdown we delete the queue synchronously in - %% the reader - although not required by the spec this seems to - %% match what people expect (see bug 21824). However we need this - %% monitor-and-async- delete in case the connection goes away - %% unexpectedly. - {stop, normal, State}; -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> - case handle_ch_down(DownPid, State) of - {ok, NewState} -> noreply(NewState); - {stop, NewState} -> {stop, normal, NewState} - end; - -handle_info(timeout, State) -> - noreply(backing_queue_timeout(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; - -handle_info(Info, State) -> - ?LOGDEBUG("Info in queue: ~p~n", [Info]), - {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q{backing_queue_state = undefined}) -> - {hibernate, State}; -handle_pre_hibernate(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - stats_timer = StatsTimer}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - BQS3 = BQ:handle_pre_hibernate(BQS2), - rabbit_event:if_enabled(StatsTimer, - fun () -> - emit_stats(State, [{idle_since, now()}]) - end), - State1 = State#q{stats_timer = rabbit_event:stop_stats_timer(StatsTimer), - backing_queue_state = BQS3}, - {hibernate, stop_rate_timer(State1)}. - -format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). diff --git a/src/rabbit_amqqueue_sup.erl b/src/rabbit_amqqueue_sup.erl deleted file mode 100644 index 2c28adce..00000000 --- a/src/rabbit_amqqueue_sup.erl +++ /dev/null @@ -1,38 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_sup). - --behaviour(supervisor2). - --export([start_link/0, start_child/2]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor2:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Node, Args) -> - supervisor2:start_child({?SERVER, Node}, Args). - -init([]) -> - {ok, {{simple_one_for_one_terminate, 10, 10}, - [{rabbit_amqqueue, {rabbit_amqqueue_process, start_link, []}, - temporary, ?MAX_WAIT, worker, [rabbit_amqqueue_process]}]}}. diff --git a/src/rabbit_auth_backend.erl b/src/rabbit_auth_backend.erl deleted file mode 100644 index ade158bb..00000000 --- a/src/rabbit_auth_backend.erl +++ /dev/null @@ -1,57 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description proplist as with auth mechanisms, - %% exchanges. Currently unused. - {description, 0}, - - %% Check a user can log in, given a username and a proplist of - %% authentication information (e.g. [{password, Password}]). - %% - %% Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {error, Error} - %% Something went wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {check_user_login, 2}, - - %% Given #user and vhost, can a user log in to a vhost? - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_vhost_access, 2}, - - %% Given #user, resource and permission, can a user access a resource? - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_resource_access, 3} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_backend_internal.erl b/src/rabbit_auth_backend_internal.erl deleted file mode 100644 index 6a018bd1..00000000 --- a/src/rabbit_auth_backend_internal.erl +++ /dev/null @@ -1,333 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend_internal). --include("rabbit.hrl"). - --behaviour(rabbit_auth_backend). - --export([description/0]). --export([check_user_login/2, check_vhost_access/2, check_resource_access/3]). - --export([add_user/2, delete_user/1, change_password/2, set_tags/2, - list_users/0, user_info_keys/0, lookup_user/1, clear_password/1]). --export([make_salt/0, check_password/2, change_password_hash/2, - hash_password/1]). --export([set_permissions/5, clear_permissions/2, - list_permissions/0, list_vhost_permissions/1, list_user_permissions/1, - list_user_vhost_permissions/2, perms_info_keys/0, - vhost_perms_info_keys/0, user_perms_info_keys/0, - user_vhost_perms_info_keys/0]). - --include("rabbit_auth_backend_spec.hrl"). - --ifdef(use_specs). - --type(regexp() :: binary()). - --spec(add_user/2 :: (rabbit_types:username(), rabbit_types:password()) -> 'ok'). --spec(delete_user/1 :: (rabbit_types:username()) -> 'ok'). --spec(change_password/2 :: (rabbit_types:username(), rabbit_types:password()) - -> 'ok'). --spec(clear_password/1 :: (rabbit_types:username()) -> 'ok'). --spec(make_salt/0 :: () -> binary()). --spec(check_password/2 :: (rabbit_types:password(), - rabbit_types:password_hash()) -> boolean()). --spec(change_password_hash/2 :: (rabbit_types:username(), - rabbit_types:password_hash()) -> 'ok'). --spec(hash_password/1 :: (rabbit_types:password()) - -> rabbit_types:password_hash()). --spec(set_tags/2 :: (rabbit_types:username(), [atom()]) -> 'ok'). --spec(list_users/0 :: () -> rabbit_types:infos()). --spec(user_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(lookup_user/1 :: (rabbit_types:username()) - -> rabbit_types:ok(rabbit_types:internal_user()) - | rabbit_types:error('not_found')). --spec(set_permissions/5 ::(rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()) -> 'ok'). --spec(clear_permissions/2 :: (rabbit_types:username(), rabbit_types:vhost()) - -> 'ok'). --spec(list_permissions/0 :: () -> rabbit_types:infos()). --spec(list_vhost_permissions/1 :: - (rabbit_types:vhost()) -> rabbit_types:infos()). --spec(list_user_permissions/1 :: - (rabbit_types:username()) -> rabbit_types:infos()). --spec(list_user_vhost_permissions/2 :: - (rabbit_types:username(), rabbit_types:vhost()) - -> rabbit_types:infos()). --spec(perms_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(vhost_perms_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(user_perms_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(user_vhost_perms_info_keys/0 :: () -> rabbit_types:info_keys()). --endif. - -%%---------------------------------------------------------------------------- - --define(PERMS_INFO_KEYS, [configure, write, read]). --define(USER_INFO_KEYS, [user, tags]). - -%% Implementation of rabbit_auth_backend - -description() -> - [{name, <<"Internal">>}, - {description, <<"Internal user / password database">>}]. - -check_user_login(Username, []) -> - internal_check_user_login(Username, fun(_) -> true end); -check_user_login(Username, [{password, Password}]) -> - internal_check_user_login( - Username, fun(#internal_user{password_hash = Hash}) -> - check_password(Password, Hash) - end); -check_user_login(Username, AuthProps) -> - exit({unknown_auth_props, Username, AuthProps}). - -internal_check_user_login(Username, Fun) -> - Refused = {refused, "user '~s' - invalid credentials", [Username]}, - case lookup_user(Username) of - {ok, User = #internal_user{tags = Tags}} -> - case Fun(User) of - true -> {ok, #user{username = Username, - tags = Tags, - auth_backend = ?MODULE, - impl = User}}; - _ -> Refused - end; - {error, not_found} -> - Refused - end. - -check_vhost_access(#user{username = Username}, VHost) -> - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHost}}) of - [] -> false; - [_R] -> true - end - end). - -check_resource_access(#user{username = Username}, - #resource{virtual_host = VHostPath, name = Name}, - Permission) -> - case mnesia:dirty_read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> - false; - [#user_permission{permission = P}] -> - PermRegexp = case element(permission_index(Permission), P) of - %% <<"^$">> breaks Emacs' erlang mode - <<"">> -> <<$^, $$>>; - RE -> RE - end, - case re:run(Name, PermRegexp, [{capture, none}]) of - match -> true; - nomatch -> false - end - end. - -permission_index(configure) -> #permission.configure; -permission_index(write) -> #permission.write; -permission_index(read) -> #permission.read. - -%%---------------------------------------------------------------------------- -%% Manipulation of the user database - -add_user(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_user, Username}) of - [] -> - ok = mnesia:write( - rabbit_user, - #internal_user{username = Username, - password_hash = - hash_password(Password), - tags = []}, - write); - _ -> - mnesia:abort({user_already_exists, Username}) - end - end), - rabbit_log:info("Created user ~p~n", [Username]), - R. - -delete_user(Username) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:delete({rabbit_user, Username}), - [ok = mnesia:delete_object( - rabbit_user_permission, R, write) || - R <- mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = '_'}, - permission = '_'}, - write)], - ok - end)), - rabbit_log:info("Deleted user ~p~n", [Username]), - R. - -change_password(Username, Password) -> - change_password_hash(Username, hash_password(Password)). - -clear_password(Username) -> - change_password_hash(Username, <<"">>). - -change_password_hash(Username, PasswordHash) -> - R = update_user(Username, fun(User) -> - User#internal_user{ - password_hash = PasswordHash } - end), - rabbit_log:info("Changed password for user ~p~n", [Username]), - R. - -hash_password(Cleartext) -> - Salt = make_salt(), - Hash = salted_md5(Salt, Cleartext), - <>. - -check_password(Cleartext, <>) -> - Hash =:= salted_md5(Salt, Cleartext). - -make_salt() -> - {A1,A2,A3} = now(), - random:seed(A1, A2, A3), - Salt = random:uniform(16#ffffffff), - <>. - -salted_md5(Salt, Cleartext) -> - Salted = <>, - erlang:md5(Salted). - -set_tags(Username, Tags) -> - R = update_user(Username, fun(User) -> - User#internal_user{tags = Tags} - end), - rabbit_log:info("Set user tags for user ~p to ~p~n", - [Username, Tags]), - R. - -update_user(Username, Fun) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - {ok, User} = lookup_user(Username), - ok = mnesia:write(rabbit_user, Fun(User), write) - end)). - -list_users() -> - [[{user, Username}, {tags, Tags}] || - #internal_user{username = Username, tags = Tags} <- - mnesia:dirty_match_object(rabbit_user, #internal_user{_ = '_'})]. - -user_info_keys() -> ?USER_INFO_KEYS. - -lookup_user(Username) -> - rabbit_misc:dirty_read({rabbit_user, Username}). - -validate_regexp(RegexpBin) -> - Regexp = binary_to_list(RegexpBin), - case re:compile(Regexp) of - {ok, _} -> ok; - {error, Reason} -> throw({error, {invalid_regexp, Regexp, Reason}}) - end. - -set_permissions(Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm) -> - lists:map(fun validate_regexp/1, [ConfigurePerm, WritePerm, ReadPerm]), - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> ok = mnesia:write( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}}, - write) - end)). - - -clear_permissions(Username, VHostPath) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> - ok = mnesia:delete({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) - end)). - -perms_info_keys() -> [user, vhost | ?PERMS_INFO_KEYS]. -vhost_perms_info_keys() -> [user | ?PERMS_INFO_KEYS]. -user_perms_info_keys() -> [vhost | ?PERMS_INFO_KEYS]. -user_vhost_perms_info_keys() -> ?PERMS_INFO_KEYS. - -list_permissions() -> - list_permissions(perms_info_keys(), match_user_vhost('_', '_')). - -list_vhost_permissions(VHostPath) -> - list_permissions( - vhost_perms_info_keys(), - rabbit_vhost:with(VHostPath, match_user_vhost('_', VHostPath))). - -list_user_permissions(Username) -> - list_permissions( - user_perms_info_keys(), - rabbit_misc:with_user(Username, match_user_vhost(Username, '_'))). - -list_user_vhost_permissions(Username, VHostPath) -> - list_permissions( - user_vhost_perms_info_keys(), - rabbit_misc:with_user_and_vhost( - Username, VHostPath, match_user_vhost(Username, VHostPath))). - -filter_props(Keys, Props) -> [T || T = {K, _} <- Props, lists:member(K, Keys)]. - -list_permissions(Keys, QueryThunk) -> - [filter_props(Keys, [{user, Username}, - {vhost, VHostPath}, - {configure, ConfigurePerm}, - {write, WritePerm}, - {read, ReadPerm}]) || - #user_permission{user_vhost = #user_vhost{username = Username, - virtual_host = VHostPath}, - permission = #permission{ configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}} <- - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction(QueryThunk)]. - -match_user_vhost(Username, VHostPath) -> - fun () -> mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = '_'}, - read) - end. diff --git a/src/rabbit_auth_mechanism.erl b/src/rabbit_auth_mechanism.erl deleted file mode 100644 index 897199ee..00000000 --- a/src/rabbit_auth_mechanism.erl +++ /dev/null @@ -1,46 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description. - {description, 0}, - - %% If this mechanism is enabled, should it be offered for a given socket? - %% (primarily so EXTERNAL can be SSL-only) - {should_offer, 1}, - - %% Called before authentication starts. Should create a state - %% object to be passed through all the stages of authentication. - {init, 1}, - - %% Handle a stage of authentication. Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {challenge, Challenge, NextState} - %% Another round is needed. Here's the state I want next time. - %% {protocol_error, Msg, Args} - %% Client got the protocol wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {handle_response, 2} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_mechanism_amqplain.erl b/src/rabbit_auth_mechanism_amqplain.erl deleted file mode 100644 index b8682a46..00000000 --- a/src/rabbit_auth_mechanism_amqplain.erl +++ /dev/null @@ -1,58 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_amqplain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism amqplain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"AMQPLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% AMQPLAIN, as used by Qpid Python test suite. The 0-8 spec actually -%% defines this as PLAIN, but in 0-9 that definition is gone, instead -%% referring generically to "SASL security mechanism", i.e. the above. - -description() -> - [{name, <<"AMQPLAIN">>}, - {description, <<"QPid AMQPLAIN mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - LoginTable = rabbit_binary_parser:parse_table(Response), - case {lists:keysearch(<<"LOGIN">>, 1, LoginTable), - lists:keysearch(<<"PASSWORD">>, 1, LoginTable)} of - {{value, {_, longstr, User}}, - {value, {_, longstr, Pass}}} -> - rabbit_access_control:check_user_pass_login(User, Pass); - _ -> - {protocol_error, - "AMQPLAIN auth info ~w is missing LOGIN or PASSWORD field", - [LoginTable]} - end. diff --git a/src/rabbit_auth_mechanism_cr_demo.erl b/src/rabbit_auth_mechanism_cr_demo.erl deleted file mode 100644 index acbb6e48..00000000 --- a/src/rabbit_auth_mechanism_cr_demo.erl +++ /dev/null @@ -1,60 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_cr_demo). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism cr-demo"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"RABBIT-CR-DEMO">>, - ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --record(state, {username = undefined}). - -%% Provides equivalent security to PLAIN but demos use of Connection.Secure(Ok) -%% START-OK: Username -%% SECURE: "Please tell me your password" -%% SECURE-OK: "My password is ~s", [Password] - -description() -> - [{name, <<"RABBIT-CR-DEMO">>}, - {description, <<"RabbitMQ Demo challenge-response authentication " - "mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - #state{}. - -handle_response(Response, State = #state{username = undefined}) -> - {challenge, <<"Please tell me your password">>, - State#state{username = Response}}; - -handle_response(<<"My password is ", Password/binary>>, - #state{username = Username}) -> - rabbit_access_control:check_user_pass_login(Username, Password); -handle_response(Response, _State) -> - {protocol_error, "Invalid response '~s'", [Response]}. diff --git a/src/rabbit_auth_mechanism_plain.erl b/src/rabbit_auth_mechanism_plain.erl deleted file mode 100644 index 2448acb6..00000000 --- a/src/rabbit_auth_mechanism_plain.erl +++ /dev/null @@ -1,76 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_plain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism plain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"PLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% SASL PLAIN, as used by the Qpid Java client and our clients. Also, -%% apparently, by OpenAMQ. - -%% TODO: once the minimum erlang becomes R13B03, reimplement this -%% using the binary module - that makes use of BIFs to do binary -%% matching and will thus be much faster. - -description() -> - [{name, <<"PLAIN">>}, - {description, <<"SASL PLAIN authentication mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - case extract_user_pass(Response) of - {ok, User, Pass} -> - rabbit_access_control:check_user_pass_login(User, Pass); - error -> - {protocol_error, "response ~p invalid", [Response]} - end. - -extract_user_pass(Response) -> - case extract_elem(Response) of - {ok, User, Response1} -> case extract_elem(Response1) of - {ok, Pass, <<>>} -> {ok, User, Pass}; - _ -> error - end; - error -> error - end. - -extract_elem(<<0:8, Rest/binary>>) -> - Count = next_null_pos(Rest, 0), - <> = Rest, - {ok, Elem, Rest1}; -extract_elem(_) -> - error. - -next_null_pos(<<>>, Count) -> Count; -next_null_pos(<<0:8, _Rest/binary>>, Count) -> Count; -next_null_pos(<<_:8, Rest/binary>>, Count) -> next_null_pos(Rest, Count + 1). diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl deleted file mode 100644 index 77278416..00000000 --- a/src/rabbit_backing_queue.erl +++ /dev/null @@ -1,171 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_backing_queue). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% Called on startup with a list of durable queue names. The - %% queues aren't being started at this point, but this call - %% allows the backing queue to perform any checking necessary for - %% the consistency of those queues, or initialise any other - %% shared resources. - {start, 1}, - - %% Called to tear down any state/resources. NB: Implementations - %% should not depend on this function being called on shutdown - %% and instead should hook into the rabbit supervision hierarchy. - {stop, 0}, - - %% Initialise the backing queue and its state. - %% - %% Takes - %% 1. the amqqueue record - %% 2. a boolean indicating whether the queue is an existing queue - %% that should be recovered - %% 3. an asynchronous callback which accepts a function of type - %% backing-queue-state to backing-queue-state. This callback - %% function can be safely invoked from any process, which - %% makes it useful for passing messages back into the backing - %% queue, especially as the backing queue does not have - %% control of its own mailbox. - {init, 3}, - - %% Called on queue shutdown when queue isn't being deleted. - {terminate, 2}, - - %% Called when the queue is terminating and needs to delete all - %% its content. - {delete_and_terminate, 2}, - - %% Remove all messages in the queue, but not messages which have - %% been fetched and are pending acks. - {purge, 1}, - - %% Publish a message. - {publish, 4}, - - %% Called for messages which have already been passed straight - %% out to a client. The queue will be empty for these calls - %% (i.e. saves the round trip through the backing queue). - {publish_delivered, 5}, - - %% Return ids of messages which have been confirmed since - %% the last invocation of this function (or initialisation). - %% - %% Message ids should only appear in the result of - %% drain_confirmed under the following circumstances: - %% - %% 1. The message appears in a call to publish_delivered/4 and - %% the first argument (ack_required) is false; or - %% 2. The message is fetched from the queue with fetch/2 and the - %% first argument (ack_required) is false; or - %% 3. The message is acked (ack/2 is called for the message); or - %% 4. The message is fully fsync'd to disk in such a way that the - %% recovery of the message is guaranteed in the event of a - %% crash of this rabbit node (excluding hardware failure). - %% - %% In addition to the above conditions, a message id may only - %% appear in the result of drain_confirmed if - %% #message_properties.needs_confirming = true when the msg was - %% published (through whichever means) to the backing queue. - %% - %% It is legal for the same message id to appear in the results - %% of multiple calls to drain_confirmed, which means that the - %% backing queue is not required to keep track of which messages - %% it has already confirmed. The confirm will be issued to the - %% publisher the first time the message id appears in the result - %% of drain_confirmed. All subsequent appearances of that message - %% id will be ignored. - {drain_confirmed, 1}, - - %% Drop messages from the head of the queue while the supplied - %% predicate returns true. - {dropwhile, 2}, - - %% Produce the next message. - {fetch, 2}, - - %% Acktags supplied are for messages which can now be forgotten - %% about. Must return 1 msg_id per Ack, in the same order as Acks. - {ack, 2}, - - %% Reinsert messages into the queue which have already been - %% delivered and were pending acknowledgement. - {requeue, 3}, - - %% How long is my queue? - {len, 1}, - - %% Is my queue empty? - {is_empty, 1}, - - %% For the next three functions, the assumption is that you're - %% monitoring something like the ingress and egress rates of the - %% queue. The RAM duration is thus the length of time represented - %% by the messages held in RAM given the current rates. If you - %% want to ignore all of this stuff, then do so, and return 0 in - %% ram_duration/1. - - %% The target is to have no more messages in RAM than indicated - %% by the duration and the current queue rates. - {set_ram_duration_target, 2}, - - %% Optionally recalculate the duration internally (likely to be - %% just update your internal rates), and report how many seconds - %% the messages in RAM represent given the current rates of the - %% queue. - {ram_duration, 1}, - - %% Should 'timeout' be called as soon as the queue process - %% can manage (either on an empty mailbox, or when a timer - %% fires)? - {needs_timeout, 1}, - - %% Called (eventually) after needs_timeout returns 'idle' or - %% 'timed'. Note this may be called more than once for each - %% 'idle' or 'timed' returned from needs_timeout. - {timeout, 1}, - - %% Called immediately before the queue hibernates. - {handle_pre_hibernate, 1}, - - %% Exists for debugging purposes, to be able to expose state via - %% rabbitmqctl list_queues backing_queue_status - {status, 1}, - - %% Passed a function to be invoked with the relevant backing - %% queue's state. Useful for when the backing queue or other - %% components need to pass functions into the backing queue. - {invoke, 3}, - - %% Called prior to a publish or publish_delivered call. Allows - %% the BQ to signal that it's already seen this message (and in - %% what capacity - i.e. was it published previously or discarded - %% previously) and thus the message should be dropped. - {is_duplicate, 2}, - - %% Called to inform the BQ about messages which have reached the - %% queue, but are not going to be further passed to BQ for some - %% reason. Note that this is may be invoked for messages for - %% which BQ:is_duplicate/2 has already returned {'published' | - %% 'discarded', BQS}. - {discard, 3} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_backing_queue_qc.erl b/src/rabbit_backing_queue_qc.erl deleted file mode 100644 index d358a041..00000000 --- a/src/rabbit_backing_queue_qc.erl +++ /dev/null @@ -1,392 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2011-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_backing_queue_qc). --ifdef(use_proper_qc). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). --include_lib("proper/include/proper.hrl"). - --behaviour(proper_statem). - --define(BQMOD, rabbit_variable_queue). --define(QUEUE_MAXLEN, 10000). --define(TIMEOUT_LIMIT, 100). - --define(RECORD_INDEX(Key, Record), - proplists:get_value(Key, lists:zip( - record_info(fields, Record), lists:seq(2, record_info(size, Record))))). - --export([initial_state/0, command/1, precondition/2, postcondition/3, - next_state/3]). - --export([prop_backing_queue_test/0, publish_multiple/4, timeout/2]). - --record(state, {bqstate, - len, %% int - messages, %% queue of {msg_props, basic_msg} - acks, %% dict of acktag => {msg_props, basic_msg} - confirms}). %% set of msgid - -%% Initialise model - -initial_state() -> - #state{bqstate = qc_variable_queue_init(qc_test_queue()), - len = 0, - messages = queue:new(), - acks = orddict:new(), - confirms = gb_sets:new()}. - -%% Property - -prop_backing_queue_test() -> - ?FORALL(Cmds, commands(?MODULE, initial_state()), - backing_queue_test(Cmds)). - -backing_queue_test(Cmds) -> - {ok, FileSizeLimit} = - application:get_env(rabbit, msg_store_file_size_limit), - application:set_env(rabbit, msg_store_file_size_limit, 512, - infinity), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - application:set_env(rabbit, queue_index_max_journal_entries, 128, - infinity), - - {_H, #state{bqstate = BQ}, Res} = run_commands(?MODULE, Cmds), - - application:set_env(rabbit, msg_store_file_size_limit, - FileSizeLimit, infinity), - application:set_env(rabbit, queue_index_max_journal_entries, - MaxJournal, infinity), - - ?BQMOD:delete_and_terminate(shutdown, BQ), - ?WHENFAIL( - io:format("Result: ~p~n", [Res]), - aggregate(command_names(Cmds), Res =:= ok)). - -%% Commands - -%% Command frequencies are tuned so that queues are normally reasonably -%% short, but they may sometimes exceed ?QUEUE_MAXLEN. Publish-multiple -%% and purging cause extreme queue lengths, so these have lower probabilities. -%% Fetches are sufficiently frequent so that commands that need acktags -%% get decent coverage. - -command(S) -> - frequency([{10, qc_publish(S)}, - {1, qc_publish_delivered(S)}, - {1, qc_publish_multiple(S)}, %% very slow - {15, qc_fetch(S)}, %% needed for ack and requeue - {15, qc_ack(S)}, - {15, qc_requeue(S)}, - {3, qc_set_ram_duration_target(S)}, - {1, qc_ram_duration(S)}, - {1, qc_drain_confirmed(S)}, - {1, qc_dropwhile(S)}, - {1, qc_is_empty(S)}, - {1, qc_timeout(S)}, - {1, qc_purge(S)}]). - -qc_publish(#state{bqstate = BQ}) -> - {call, ?BQMOD, publish, - [qc_message(), - #message_properties{needs_confirming = frequency([{1, true}, - {20, false}]), - expiry = choose(0, 10)}, - self(), BQ]}. - -qc_publish_multiple(#state{bqstate = BQ}) -> - {call, ?MODULE, publish_multiple, - [qc_message(), #message_properties{}, BQ, - resize(?QUEUE_MAXLEN, pos_integer())]}. - -qc_publish_delivered(#state{bqstate = BQ}) -> - {call, ?BQMOD, publish_delivered, - [boolean(), qc_message(), #message_properties{}, self(), BQ]}. - -qc_fetch(#state{bqstate = BQ}) -> - {call, ?BQMOD, fetch, [boolean(), BQ]}. - -qc_ack(#state{bqstate = BQ, acks = Acks}) -> - {call, ?BQMOD, ack, [rand_choice(orddict:fetch_keys(Acks)), BQ]}. - -qc_requeue(#state{bqstate = BQ, acks = Acks}) -> - {call, ?BQMOD, requeue, - [rand_choice(orddict:fetch_keys(Acks)), fun(MsgOpts) -> MsgOpts end, BQ]}. - -qc_set_ram_duration_target(#state{bqstate = BQ}) -> - {call, ?BQMOD, set_ram_duration_target, - [oneof([0, 1, 2, resize(1000, pos_integer()), infinity]), BQ]}. - -qc_ram_duration(#state{bqstate = BQ}) -> - {call, ?BQMOD, ram_duration, [BQ]}. - -qc_drain_confirmed(#state{bqstate = BQ}) -> - {call, ?BQMOD, drain_confirmed, [BQ]}. - -qc_dropwhile(#state{bqstate = BQ}) -> - {call, ?BQMOD, dropwhile, [fun dropfun/1, BQ]}. - -qc_is_empty(#state{bqstate = BQ}) -> - {call, ?BQMOD, is_empty, [BQ]}. - -qc_timeout(#state{bqstate = BQ}) -> - {call, ?MODULE, timeout, [BQ, ?TIMEOUT_LIMIT]}. - -qc_purge(#state{bqstate = BQ}) -> - {call, ?BQMOD, purge, [BQ]}. - -%% Preconditions - -precondition(#state{acks = Acks}, {call, ?BQMOD, Fun, _Arg}) - when Fun =:= ack; Fun =:= requeue -> - orddict:size(Acks) > 0; -precondition(#state{messages = Messages}, - {call, ?BQMOD, publish_delivered, _Arg}) -> - queue:is_empty(Messages); -precondition(_S, {call, ?BQMOD, _Fun, _Arg}) -> - true; -precondition(_S, {call, ?MODULE, timeout, _Arg}) -> - true; -precondition(#state{len = Len}, {call, ?MODULE, publish_multiple, _Arg}) -> - Len < ?QUEUE_MAXLEN. - -%% Model updates - -next_state(S, BQ, {call, ?BQMOD, publish, [Msg, MsgProps, _Pid, _BQ]}) -> - #state{len = Len, messages = Messages, confirms = Confirms} = S, - MsgId = {call, erlang, element, [?RECORD_INDEX(id, basic_message), Msg]}, - NeedsConfirm = - {call, erlang, element, - [?RECORD_INDEX(needs_confirming, message_properties), MsgProps]}, - S#state{bqstate = BQ, - len = Len + 1, - messages = queue:in({MsgProps, Msg}, Messages), - confirms = case eval(NeedsConfirm) of - true -> gb_sets:add(MsgId, Confirms); - _ -> Confirms - end}; - -next_state(S, BQ, {call, _, publish_multiple, [Msg, MsgProps, _BQ, Count]}) -> - #state{len = Len, messages = Messages} = S, - Messages1 = repeat(Messages, fun(Msgs) -> - queue:in({MsgProps, Msg}, Msgs) - end, Count), - S#state{bqstate = BQ, - len = Len + Count, - messages = Messages1}; - -next_state(S, Res, - {call, ?BQMOD, publish_delivered, - [AckReq, Msg, MsgProps, _Pid, _BQ]}) -> - #state{confirms = Confirms, acks = Acks} = S, - AckTag = {call, erlang, element, [1, Res]}, - BQ1 = {call, erlang, element, [2, Res]}, - MsgId = {call, erlang, element, [?RECORD_INDEX(id, basic_message), Msg]}, - NeedsConfirm = - {call, erlang, element, - [?RECORD_INDEX(needs_confirming, message_properties), MsgProps]}, - S#state{bqstate = BQ1, - confirms = case eval(NeedsConfirm) of - true -> gb_sets:add(MsgId, Confirms); - _ -> Confirms - end, - acks = case AckReq of - true -> orddict:append(AckTag, {MsgProps, Msg}, Acks); - false -> Acks - end - }; - -next_state(S, Res, {call, ?BQMOD, fetch, [AckReq, _BQ]}) -> - #state{len = Len, messages = Messages, acks = Acks} = S, - ResultInfo = {call, erlang, element, [1, Res]}, - BQ1 = {call, erlang, element, [2, Res]}, - AckTag = {call, erlang, element, [3, ResultInfo]}, - S1 = S#state{bqstate = BQ1}, - case queue:out(Messages) of - {empty, _M2} -> - S1; - {{value, MsgProp_Msg}, M2} -> - S2 = S1#state{len = Len - 1, messages = M2}, - case AckReq of - true -> - S2#state{acks = orddict:append(AckTag, MsgProp_Msg, Acks)}; - false -> - S2 - end - end; - -next_state(S, Res, {call, ?BQMOD, ack, [AcksArg, _BQ]}) -> - #state{acks = AcksState} = S, - BQ1 = {call, erlang, element, [2, Res]}, - S#state{bqstate = BQ1, - acks = lists:foldl(fun orddict:erase/2, AcksState, AcksArg)}; - -next_state(S, Res, {call, ?BQMOD, requeue, [AcksArg, _F, _V]}) -> - #state{len = Len, messages = Messages, acks = AcksState} = S, - BQ1 = {call, erlang, element, [2, Res]}, - RequeueMsgs = lists:append([orddict:fetch(Key, AcksState) || - Key <- AcksArg]), - S#state{bqstate = BQ1, - len = Len + length(RequeueMsgs), - messages = queue:join(Messages, queue:from_list(RequeueMsgs)), - acks = lists:foldl(fun orddict:erase/2, AcksState, AcksArg)}; - -next_state(S, BQ, {call, ?BQMOD, set_ram_duration_target, _Args}) -> - S#state{bqstate = BQ}; - -next_state(S, Res, {call, ?BQMOD, ram_duration, _Args}) -> - BQ1 = {call, erlang, element, [2, Res]}, - S#state{bqstate = BQ1}; - -next_state(S, Res, {call, ?BQMOD, drain_confirmed, _Args}) -> - BQ1 = {call, erlang, element, [2, Res]}, - S#state{bqstate = BQ1}; - -next_state(S, BQ1, {call, ?BQMOD, dropwhile, _Args}) -> - #state{messages = Messages} = S, - Messages1 = drop_messages(Messages), - S#state{bqstate = BQ1, len = queue:len(Messages1), messages = Messages1}; - -next_state(S, _Res, {call, ?BQMOD, is_empty, _Args}) -> - S; - -next_state(S, BQ, {call, ?MODULE, timeout, _Args}) -> - S#state{bqstate = BQ}; - -next_state(S, Res, {call, ?BQMOD, purge, _Args}) -> - BQ1 = {call, erlang, element, [2, Res]}, - S#state{bqstate = BQ1, len = 0, messages = queue:new()}. - -%% Postconditions - -postcondition(S, {call, ?BQMOD, fetch, _Args}, Res) -> - #state{messages = Messages, len = Len, acks = Acks, confirms = Confrms} = S, - case Res of - {{MsgFetched, _IsDelivered, AckTag, RemainingLen}, _BQ} -> - {_MsgProps, Msg} = queue:head(Messages), - MsgFetched =:= Msg andalso - not orddict:is_key(AckTag, Acks) andalso - not gb_sets:is_element(AckTag, Confrms) andalso - RemainingLen =:= Len - 1; - {empty, _BQ} -> - Len =:= 0 - end; - -postcondition(S, {call, ?BQMOD, publish_delivered, _Args}, {AckTag, _BQ}) -> - #state{acks = Acks, confirms = Confrms} = S, - not orddict:is_key(AckTag, Acks) andalso - not gb_sets:is_element(AckTag, Confrms); - -postcondition(#state{len = Len}, {call, ?BQMOD, purge, _Args}, Res) -> - {PurgeCount, _BQ} = Res, - Len =:= PurgeCount; - -postcondition(#state{len = Len}, - {call, ?BQMOD, is_empty, _Args}, Res) -> - (Len =:= 0) =:= Res; - -postcondition(S, {call, ?BQMOD, drain_confirmed, _Args}, Res) -> - #state{confirms = Confirms} = S, - {ReportedConfirmed, _BQ} = Res, - lists:all(fun (M) -> - gb_sets:is_element(M, Confirms) - end, ReportedConfirmed); - -postcondition(#state{bqstate = BQ, len = Len}, {call, _M, _F, _A}, _Res) -> - ?BQMOD:len(BQ) =:= Len. - -%% Helpers - -repeat(Result, _Fun, 0) -> - Result; -repeat(Result, Fun, Times) -> - repeat(Fun(Result), Fun, Times - 1). - -publish_multiple(Msg, MsgProps, BQ, Count) -> - repeat(BQ, fun(BQ1) -> - ?BQMOD:publish(Msg, MsgProps, self(), BQ1) - end, Count). - -timeout(BQ, 0) -> - BQ; -timeout(BQ, AtMost) -> - case ?BQMOD:needs_timeout(BQ) of - false -> BQ; - _ -> timeout(?BQMOD:timeout(BQ), AtMost - 1) - end. - -qc_message_payload() -> - ?SIZED(Size, resize(Size * Size, binary())). - -qc_routing_key() -> - noshrink(binary(10)). - -qc_delivery_mode() -> - oneof([1, 2]). - -qc_message() -> - qc_message(qc_delivery_mode()). - -qc_message(DeliveryMode) -> - {call, rabbit_basic, message, [ - qc_default_exchange(), - qc_routing_key(), - #'P_basic'{delivery_mode = DeliveryMode}, - qc_message_payload()]}. - -qc_default_exchange() -> - {call, rabbit_misc, r, [<<>>, exchange, <<>>]}. - -qc_variable_queue_init(Q) -> - {call, ?BQMOD, init, - [Q, false, function(2, ok)]}. - -qc_test_q() -> - {call, rabbit_misc, r, [<<"/">>, queue, noshrink(binary(16))]}. - -qc_test_queue() -> - qc_test_queue(boolean()). - -qc_test_queue(Durable) -> - #amqqueue{name = qc_test_q(), - durable = Durable, - auto_delete = false, - arguments = [], - pid = self()}. - -rand_choice([]) -> []; -rand_choice(List) -> [lists:nth(random:uniform(length(List)), List)]. - -dropfun(Props) -> - Expiry = eval({call, erlang, element, - [?RECORD_INDEX(expiry, message_properties), Props]}), - Expiry =/= 0. - -drop_messages(Messages) -> - case queue:out(Messages) of - {empty, _} -> - Messages; - {{value, MsgProps_Msg}, M2} -> - MsgProps = {call, erlang, element, [1, MsgProps_Msg]}, - case dropfun(MsgProps) of - true -> drop_messages(M2); - false -> Messages - end - end. - --endif. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl deleted file mode 100644 index 9cc406e7..00000000 --- a/src/rabbit_basic.erl +++ /dev/null @@ -1,197 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_basic). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([publish/1, message/3, message/4, properties/1, delivery/4]). --export([publish/4, publish/6]). --export([build_content/2, from_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(properties_input() :: - (rabbit_framing:amqp_property_record() | [{atom(), any()}])). --type(publish_result() :: - ({ok, rabbit_router:routing_result(), [pid()]} - | rabbit_types:error('not_found'))). - --type(exchange_input() :: (rabbit_types:exchange() | rabbit_exchange:name())). --type(body_input() :: (binary() | [binary()])). - --spec(publish/1 :: - (rabbit_types:delivery()) -> publish_result()). --spec(delivery/4 :: - (boolean(), boolean(), rabbit_types:message(), undefined | integer()) -> - rabbit_types:delivery()). --spec(message/4 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - properties_input(), binary()) -> rabbit_types:message()). --spec(message/3 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - rabbit_types:decoded_content()) -> - rabbit_types:ok_or_error2(rabbit_types:message(), any())). --spec(properties/1 :: - (properties_input()) -> rabbit_framing:amqp_property_record()). --spec(publish/4 :: - (exchange_input(), rabbit_router:routing_key(), properties_input(), - body_input()) -> publish_result()). --spec(publish/6 :: - (exchange_input(), rabbit_router:routing_key(), boolean(), boolean(), - properties_input(), body_input()) -> publish_result()). --spec(build_content/2 :: (rabbit_framing:amqp_property_record(), - binary() | [binary()]) -> rabbit_types:content()). --spec(from_content/1 :: (rabbit_types:content()) -> - {rabbit_framing:amqp_property_record(), binary()}). - --endif. - -%%---------------------------------------------------------------------------- - -publish(Delivery = #delivery{ - message = #basic_message{exchange_name = ExchangeName}}) -> - case rabbit_exchange:lookup(ExchangeName) of - {ok, X} -> publish(X, Delivery); - Other -> Other - end. - -delivery(Mandatory, Immediate, Message, MsgSeqNo) -> - #delivery{mandatory = Mandatory, immediate = Immediate, sender = self(), - message = Message, msg_seq_no = MsgSeqNo}. - -build_content(Properties, BodyBin) when is_binary(BodyBin) -> - build_content(Properties, [BodyBin]); - -build_content(Properties, PFR) -> - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - #content{class_id = ClassId, - properties = Properties, - properties_bin = none, - protocol = none, - payload_fragments_rev = PFR}. - -from_content(Content) -> - #content{class_id = ClassId, - properties = Props, - payload_fragments_rev = FragmentsRev} = - rabbit_binary_parser:ensure_content_decoded(Content), - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - {Props, list_to_binary(lists:reverse(FragmentsRev))}. - -%% This breaks the spec rule forbidding message modification -strip_header(#content{properties = #'P_basic'{headers = undefined}} - = DecodedContent, _Key) -> - DecodedContent; -strip_header(#content{properties = Props = #'P_basic'{headers = Headers}} - = DecodedContent, Key) -> - case lists:keysearch(Key, 1, Headers) of - false -> DecodedContent; - {value, Found} -> Headers0 = lists:delete(Found, Headers), - rabbit_binary_generator:clear_encoded_content( - DecodedContent#content{ - properties = Props#'P_basic'{ - headers = Headers0}}) - end. - -message(ExchangeName, RoutingKey, - #content{properties = Props} = DecodedContent) -> - try - {ok, #basic_message{ - exchange_name = ExchangeName, - content = strip_header(DecodedContent, ?DELETED_HEADER), - id = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent), - routing_keys = [RoutingKey | - header_routes(Props#'P_basic'.headers)]}} - catch - {error, _Reason} = Error -> Error - end. - -message(ExchangeName, RoutingKey, RawProperties, Body) -> - Properties = properties(RawProperties), - Content = build_content(Properties, Body), - {ok, Msg} = message(ExchangeName, RoutingKey, Content), - Msg. - -properties(P = #'P_basic'{}) -> - P; -properties(P) when is_list(P) -> - %% Yes, this is O(length(P) * record_info(size, 'P_basic') / 2), - %% i.e. slow. Use the definition of 'P_basic' directly if - %% possible! - lists:foldl(fun ({Key, Value}, Acc) -> - case indexof(record_info(fields, 'P_basic'), Key) of - 0 -> throw({unknown_basic_property, Key}); - N -> setelement(N + 1, Acc, Value) - end - end, #'P_basic'{}, P). - -indexof(L, Element) -> indexof(L, Element, 1). - -indexof([], _Element, _N) -> 0; -indexof([Element | _Rest], Element, N) -> N; -indexof([_ | Rest], Element, N) -> indexof(Rest, Element, N + 1). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(Exchange, RoutingKeyBin, Properties, Body) -> - publish(Exchange, RoutingKeyBin, false, false, Properties, Body). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(X = #exchange{name = XName}, RKey, Mandatory, Immediate, Props, Body) -> - publish(X, delivery(Mandatory, Immediate, - message(XName, RKey, properties(Props), Body), - undefined)); -publish(XName, RKey, Mandatory, Immediate, Props, Body) -> - case rabbit_exchange:lookup(XName) of - {ok, X} -> publish(X, RKey, Mandatory, Immediate, Props, Body); - Err -> Err - end. - -publish(X, Delivery) -> - {RoutingRes, DeliveredQPids} = - rabbit_router:deliver(rabbit_exchange:route(X, Delivery), Delivery), - {ok, RoutingRes, DeliveredQPids}. - -is_message_persistent(#content{properties = #'P_basic'{ - delivery_mode = Mode}}) -> - case Mode of - 1 -> false; - 2 -> true; - undefined -> false; - Other -> throw({error, {delivery_mode_unknown, Other}}) - end. - -%% Extract CC routes from headers -header_routes(undefined) -> - []; -header_routes(HeadersTable) -> - lists:append( - [case rabbit_misc:table_lookup(HeadersTable, HeaderKey) of - {array, Routes} -> [Route || {longstr, Route} <- Routes]; - undefined -> []; - {Type, _Val} -> throw({error, {unacceptable_type_in_header, - Type, - binary_to_list(HeaderKey)}}) - end || HeaderKey <- ?ROUTING_HEADERS]). diff --git a/src/rabbit_binary_generator.erl b/src/rabbit_binary_generator.erl deleted file mode 100644 index 68511a32..00000000 --- a/src/rabbit_binary_generator.erl +++ /dev/null @@ -1,337 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_generator). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - -%% EMPTY_CONTENT_BODY_FRAME_SIZE, 8 = 1 + 2 + 4 + 1 -%% - 1 byte of frame type -%% - 2 bytes of channel number -%% - 4 bytes of frame payload length -%% - 1 byte of payload trailer FRAME_END byte -%% See definition of check_empty_content_body_frame_size/0, -%% an assertion called at startup. --define(EMPTY_CONTENT_BODY_FRAME_SIZE, 8). - --export([build_simple_method_frame/3, - build_simple_content_frames/4, - build_heartbeat_frame/0]). --export([generate_table/1, encode_properties/2]). --export([check_empty_content_body_frame_size/0]). --export([ensure_content_encoded/2, clear_encoded_content/1]). --export([map_exception/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame() :: [binary()]). - --spec(build_simple_method_frame/3 :: - (rabbit_channel:channel_number(), rabbit_framing:amqp_method_record(), - rabbit_types:protocol()) - -> frame()). --spec(build_simple_content_frames/4 :: - (rabbit_channel:channel_number(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> [frame()]). --spec(build_heartbeat_frame/0 :: () -> frame()). --spec(generate_table/1 :: (rabbit_framing:amqp_table()) -> binary()). --spec(encode_properties/2 :: - ([rabbit_framing:amqp_property_type()], [any()]) -> binary()). --spec(check_empty_content_body_frame_size/0 :: () -> 'ok'). --spec(ensure_content_encoded/2 :: - (rabbit_types:content(), rabbit_types:protocol()) -> - rabbit_types:encoded_content()). --spec(clear_encoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:unencoded_content()). --spec(map_exception/3 :: (rabbit_channel:channel_number(), - rabbit_types:amqp_error() | any(), - rabbit_types:protocol()) -> - {rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record()}). - --endif. - -%%---------------------------------------------------------------------------- - -build_simple_method_frame(ChannelInt, MethodRecord, Protocol) -> - MethodFields = Protocol:encode_method_fields(MethodRecord), - MethodName = rabbit_misc:method_record_type(MethodRecord), - {ClassId, MethodId} = Protocol:method_id(MethodName), - create_frame(1, ChannelInt, [<>, MethodFields]). - -build_simple_content_frames(ChannelInt, Content, FrameMax, Protocol) -> - #content{class_id = ClassId, - properties_bin = ContentPropertiesBin, - payload_fragments_rev = PayloadFragmentsRev} = - ensure_content_encoded(Content, Protocol), - {BodySize, ContentFrames} = - build_content_frames(PayloadFragmentsRev, FrameMax, ChannelInt), - HeaderFrame = create_frame(2, ChannelInt, - [<>, - ContentPropertiesBin]), - [HeaderFrame | ContentFrames]. - -build_content_frames(FragsRev, FrameMax, ChannelInt) -> - BodyPayloadMax = if FrameMax == 0 -> - iolist_size(FragsRev); - true -> - FrameMax - ?EMPTY_CONTENT_BODY_FRAME_SIZE - end, - build_content_frames(0, [], BodyPayloadMax, [], - lists:reverse(FragsRev), BodyPayloadMax, ChannelInt). - -build_content_frames(SizeAcc, FramesAcc, _FragSizeRem, [], - [], _BodyPayloadMax, _ChannelInt) -> - {SizeAcc, lists:reverse(FramesAcc)}; -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - Frags, BodyPayloadMax, ChannelInt) - when FragSizeRem == 0 orelse Frags == [] -> - Frame = create_frame(3, ChannelInt, lists:reverse(FragAcc)), - FrameSize = BodyPayloadMax - FragSizeRem, - build_content_frames(SizeAcc + FrameSize, [Frame | FramesAcc], - BodyPayloadMax, [], Frags, BodyPayloadMax, ChannelInt); -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - [Frag | Frags], BodyPayloadMax, ChannelInt) -> - Size = size(Frag), - {NewFragSizeRem, NewFragAcc, NewFrags} = - if Size == 0 -> {FragSizeRem, FragAcc, Frags}; - Size =< FragSizeRem -> {FragSizeRem - Size, [Frag | FragAcc], Frags}; - true -> <> = - Frag, - {0, [Head | FragAcc], [Tail | Frags]} - end, - build_content_frames(SizeAcc, FramesAcc, NewFragSizeRem, NewFragAcc, - NewFrags, BodyPayloadMax, ChannelInt). - -build_heartbeat_frame() -> - create_frame(?FRAME_HEARTBEAT, 0, <<>>). - -create_frame(TypeInt, ChannelInt, PayloadBin) when is_binary(PayloadBin) -> - [<>, PayloadBin, <>]; -create_frame(TypeInt, ChannelInt, Payload) -> - create_frame(TypeInt, ChannelInt, list_to_binary(Payload)). - -%% table_field_to_binary supports the AMQP 0-8/0-9 standard types, S, -%% I, D, T and F, as well as the QPid extensions b, d, f, l, s, t, x, -%% and V. - -table_field_to_binary({FName, Type, Value}) -> - [short_string_to_binary(FName) | field_value_to_binary(Type, Value)]. - -field_value_to_binary(longstr, Value) -> - ["S", long_string_to_binary(Value)]; - -field_value_to_binary(signedint, Value) -> - ["I", <>]; - -field_value_to_binary(decimal, {Before, After}) -> - ["D", Before, <>]; - -field_value_to_binary(timestamp, Value) -> - ["T", <>]; - -field_value_to_binary(table, Value) -> - ["F", table_to_binary(Value)]; - -field_value_to_binary(array, Value) -> - ["A", array_to_binary(Value)]; - -field_value_to_binary(byte, Value) -> - ["b", <>]; - -field_value_to_binary(double, Value) -> - ["d", <>]; - -field_value_to_binary(float, Value) -> - ["f", <>]; - -field_value_to_binary(long, Value) -> - ["l", <>]; - -field_value_to_binary(short, Value) -> - ["s", <>]; - -field_value_to_binary(bool, Value) -> - ["t", if Value -> 1; true -> 0 end]; - -field_value_to_binary(binary, Value) -> - ["x", long_string_to_binary(Value)]; - -field_value_to_binary(void, _Value) -> - ["V"]. - -table_to_binary(Table) when is_list(Table) -> - BinTable = generate_table(Table), - [<<(size(BinTable)):32>>, BinTable]. - -array_to_binary(Array) when is_list(Array) -> - BinArray = generate_array(Array), - [<<(size(BinArray)):32>>, BinArray]. - -generate_table(Table) when is_list(Table) -> - list_to_binary(lists:map(fun table_field_to_binary/1, Table)). - -generate_array(Array) when is_list(Array) -> - list_to_binary(lists:map( - fun ({Type, Value}) -> field_value_to_binary(Type, Value) end, - Array)). - -short_string_to_binary(String) when is_binary(String) -> - Len = size(String), - if Len < 256 -> [<<(size(String)):8>>, String]; - true -> exit(content_properties_shortstr_overflow) - end; -short_string_to_binary(String) -> - StringLength = length(String), - if StringLength < 256 -> [<>, String]; - true -> exit(content_properties_shortstr_overflow) - end. - -long_string_to_binary(String) when is_binary(String) -> - [<<(size(String)):32>>, String]; -long_string_to_binary(String) -> - [<<(length(String)):32>>, String]. - -encode_properties([], []) -> - <<0, 0>>; -encode_properties(TypeList, ValueList) -> - encode_properties(0, TypeList, ValueList, 0, [], []). - -encode_properties(_Bit, [], [], FirstShortAcc, FlagsAcc, PropsAcc) -> - list_to_binary([lists:reverse(FlagsAcc), <>, lists:reverse(PropsAcc)]); -encode_properties(_Bit, [], _ValueList, _FirstShortAcc, _FlagsAcc, _PropsAcc) -> - exit(content_properties_values_overflow); -encode_properties(15, TypeList, ValueList, FirstShortAcc, FlagsAcc, PropsAcc) -> - NewFlagsShort = FirstShortAcc bor 1, % set the continuation low bit - encode_properties(0, TypeList, ValueList, 0, [<> | FlagsAcc], PropsAcc); -encode_properties(Bit, [bit | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - true -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), FlagsAcc, PropsAcc); - false -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - Other -> exit({content_properties_illegal_bit_value, Other}) - end; -encode_properties(Bit, [T | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - undefined -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - _ -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), - FlagsAcc, - [encode_property(T, Value) | PropsAcc]) - end. - -encode_property(shortstr, String) -> - Len = size(String), - if Len < 256 -> <>; - true -> exit(content_properties_shortstr_overflow) - end; -encode_property(longstr, String) -> - Len = size(String), <>; -encode_property(octet, Int) -> - <>; -encode_property(shortint, Int) -> - <>; -encode_property(longint, Int) -> - <>; -encode_property(longlongint, Int) -> - <>; -encode_property(timestamp, Int) -> - <>; -encode_property(table, Table) -> - table_to_binary(Table). - -check_empty_content_body_frame_size() -> - %% Intended to ensure that EMPTY_CONTENT_BODY_FRAME_SIZE is - %% defined correctly. - ComputedSize = size(list_to_binary(create_frame(?FRAME_BODY, 0, <<>>))), - if ComputedSize == ?EMPTY_CONTENT_BODY_FRAME_SIZE -> - ok; - true -> - exit({incorrect_empty_content_body_frame_size, - ComputedSize, ?EMPTY_CONTENT_BODY_FRAME_SIZE}) - end. - -ensure_content_encoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}, Protocol) - when PropBin =/= none -> - Content; -ensure_content_encoded(Content = #content{properties = none, - properties_bin = PropBin, - protocol = Protocol}, Protocol1) - when PropBin =/= none -> - Props = Protocol:decode_properties(Content#content.class_id, PropBin), - Content#content{properties = Props, - properties_bin = Protocol1:encode_properties(Props), - protocol = Protocol1}; -ensure_content_encoded(Content = #content{properties = Props}, Protocol) - when Props =/= none -> - Content#content{properties_bin = Protocol:encode_properties(Props), - protocol = Protocol}. - -clear_encoded_content(Content = #content{properties_bin = none, - protocol = none}) -> - Content; -clear_encoded_content(Content = #content{properties = none}) -> - %% Only clear when we can rebuild the properties_bin later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_encoded_content(Content = #content{}) -> - Content#content{properties_bin = none, protocol = none}. - -%% NB: this function is also used by the Erlang client -map_exception(Channel, Reason, Protocol) -> - {SuggestedClose, ReplyCode, ReplyText, FailedMethod} = - lookup_amqp_exception(Reason, Protocol), - {ClassId, MethodId} = case FailedMethod of - {_, _} -> FailedMethod; - none -> {0, 0}; - _ -> Protocol:method_id(FailedMethod) - end, - case SuggestedClose orelse (Channel == 0) of - true -> {0, #'connection.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}}; - false -> {Channel, #'channel.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}} - end. - -lookup_amqp_exception(#amqp_error{name = Name, - explanation = Expl, - method = Method}, - Protocol) -> - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(Name), - ExplBin = amqp_exception_explanation(Text, Expl), - {ShouldClose, Code, ExplBin, Method}; -lookup_amqp_exception(Other, Protocol) -> - rabbit_log:warning("Non-AMQP exit reason '~p'~n", [Other]), - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(internal_error), - {ShouldClose, Code, Text, none}. - -amqp_exception_explanation(Text, Expl) -> - ExplBin = list_to_binary(Expl), - CompleteTextBin = <>, - if size(CompleteTextBin) > 255 -> <>; - true -> CompleteTextBin - end. diff --git a/src/rabbit_binary_parser.erl b/src/rabbit_binary_parser.erl deleted file mode 100644 index 88026bab..00000000 --- a/src/rabbit_binary_parser.erl +++ /dev/null @@ -1,165 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_parser). - --include("rabbit.hrl"). - --export([parse_table/1, parse_properties/2]). --export([ensure_content_decoded/1, clear_decoded_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(parse_table/1 :: (binary()) -> rabbit_framing:amqp_table()). --spec(parse_properties/2 :: - ([rabbit_framing:amqp_property_type()], binary()) -> [any()]). --spec(ensure_content_decoded/1 :: - (rabbit_types:content()) -> rabbit_types:decoded_content()). --spec(clear_decoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:undecoded_content()). - --endif. - -%%---------------------------------------------------------------------------- - -%% parse_table supports the AMQP 0-8/0-9 standard types, S, I, D, T -%% and F, as well as the QPid extensions b, d, f, l, s, t, x, and V. - -parse_table(<<>>) -> - []; -parse_table(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{NameString, Type, Value} | parse_table(Rest)]. - -parse_array(<<>>) -> - []; -parse_array(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{Type, Value} | parse_array(Rest)]. - -parse_field_value(<<"S", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {longstr, ValueString, Rest}; - -parse_field_value(<<"I", Value:32/signed, Rest/binary>>) -> - {signedint, Value, Rest}; - -parse_field_value(<<"D", Before:8/unsigned, After:32/unsigned, Rest/binary>>) -> - {decimal, {Before, After}, Rest}; - -parse_field_value(<<"T", Value:64/unsigned, Rest/binary>>) -> - {timestamp, Value, Rest}; - -parse_field_value(<<"F", VLen:32/unsigned, Table:VLen/binary, Rest/binary>>) -> - {table, parse_table(Table), Rest}; - -parse_field_value(<<"A", VLen:32/unsigned, Array:VLen/binary, Rest/binary>>) -> - {array, parse_array(Array), Rest}; - -parse_field_value(<<"b", Value:8/unsigned, Rest/binary>>) -> - {byte, Value, Rest}; - -parse_field_value(<<"d", Value:64/float, Rest/binary>>) -> - {double, Value, Rest}; - -parse_field_value(<<"f", Value:32/float, Rest/binary>>) -> - {float, Value, Rest}; - -parse_field_value(<<"l", Value:64/signed, Rest/binary>>) -> - {long, Value, Rest}; - -parse_field_value(<<"s", Value:16/signed, Rest/binary>>) -> - {short, Value, Rest}; - -parse_field_value(<<"t", Value:8/unsigned, Rest/binary>>) -> - {bool, (Value /= 0), Rest}; - -parse_field_value(<<"x", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {binary, ValueString, Rest}; - -parse_field_value(<<"V", Rest/binary>>) -> - {void, undefined, Rest}. - - -parse_properties([], _PropBin) -> - []; -parse_properties(TypeList, PropBin) -> - FlagCount = length(TypeList), - %% round up to the nearest multiple of 15 bits, since the 16th bit - %% in each short is a "continuation" bit. - FlagsLengthBytes = trunc((FlagCount + 14) / 15) * 2, - <> = PropBin, - <> = Flags, - parse_properties(0, TypeList, [], FirstShort, Remainder, Properties). - -parse_properties(_Bit, [], Acc, _FirstShort, - _Remainder, <<>>) -> - lists:reverse(Acc); -parse_properties(_Bit, [], _Acc, _FirstShort, - _Remainder, _LeftoverBin) -> - exit(content_properties_binary_overflow); -parse_properties(15, TypeList, Acc, _OldFirstShort, - <>, Properties) -> - parse_properties(0, TypeList, Acc, NewFirstShort, Remainder, Properties); -parse_properties(Bit, [Type | TypeListRest], Acc, FirstShort, - Remainder, Properties) -> - {Value, Rest} = - if (FirstShort band (1 bsl (15 - Bit))) /= 0 -> - parse_property(Type, Properties); - Type == bit -> {false , Properties}; - true -> {undefined, Properties} - end, - parse_properties(Bit + 1, TypeListRest, [Value | Acc], FirstShort, - Remainder, Rest). - -parse_property(shortstr, <>) -> - {String, Rest}; -parse_property(longstr, <>) -> - {String, Rest}; -parse_property(octet, <>) -> - {Int, Rest}; -parse_property(shortint, <>) -> - {Int, Rest}; -parse_property(longint, <>) -> - {Int, Rest}; -parse_property(longlongint, <>) -> - {Int, Rest}; -parse_property(timestamp, <>) -> - {Int, Rest}; -parse_property(bit, Rest) -> - {true, Rest}; -parse_property(table, <>) -> - {parse_table(Table), Rest}. - -ensure_content_decoded(Content = #content{properties = Props}) - when Props =/= none -> - Content; -ensure_content_decoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}) - when PropBin =/= none -> - Content#content{properties = Protocol:decode_properties( - Content#content.class_id, PropBin)}. - -clear_decoded_content(Content = #content{properties = none}) -> - Content; -clear_decoded_content(Content = #content{properties_bin = none}) -> - %% Only clear when we can rebuild the properties later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_decoded_content(Content = #content{}) -> - Content#content{properties = none}. diff --git a/src/rabbit_binding.erl b/src/rabbit_binding.erl deleted file mode 100644 index 205d5bba..00000000 --- a/src/rabbit_binding.erl +++ /dev/null @@ -1,455 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binding). --include("rabbit.hrl"). - --export([recover/2, exists/1, add/1, add/2, remove/1, remove/2, list/1]). --export([list_for_source/1, list_for_destination/1, - list_for_source_and_destination/2]). --export([new_deletions/0, combine_deletions/2, add_deletion/3, - process_deletions/1]). --export([info_keys/0, info/1, info/2, info_all/1, info_all/2]). -%% these must all be run inside a mnesia tx --export([has_for_source/1, remove_for_source/1, - remove_for_destination/1, remove_transient_for_destination/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([key/0, deletions/0]). - --type(key() :: binary()). - --type(bind_errors() :: rabbit_types:error('source_not_found' | - 'destination_not_found' | - 'source_and_destination_not_found')). --type(bind_ok_or_error() :: 'ok' | bind_errors() | - rabbit_types:error('binding_not_found')). --type(bind_res() :: bind_ok_or_error() | rabbit_misc:const(bind_ok_or_error())). --type(inner_fun() :: - fun((rabbit_types:exchange(), - rabbit_types:exchange() | rabbit_types:amqqueue()) -> - rabbit_types:ok_or_error(rabbit_types:amqp_error()))). --type(bindings() :: [rabbit_types:binding()]). - --opaque(deletions() :: dict()). - --spec(recover/2 :: ([rabbit_exchange:name()], [rabbit_amqqueue:name()]) -> - 'ok'). --spec(exists/1 :: (rabbit_types:binding()) -> boolean() | bind_errors()). --spec(add/1 :: (rabbit_types:binding()) -> bind_res()). --spec(add/2 :: (rabbit_types:binding(), inner_fun()) -> bind_res()). --spec(remove/1 :: (rabbit_types:binding()) -> bind_res()). --spec(remove/2 :: (rabbit_types:binding(), inner_fun()) -> bind_res()). --spec(list/1 :: (rabbit_types:vhost()) -> bindings()). --spec(list_for_source/1 :: - (rabbit_types:binding_source()) -> bindings()). --spec(list_for_destination/1 :: - (rabbit_types:binding_destination()) -> bindings()). --spec(list_for_source_and_destination/2 :: - (rabbit_types:binding_source(), rabbit_types:binding_destination()) -> - bindings()). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:binding()) -> rabbit_types:infos()). --spec(info/2 :: (rabbit_types:binding(), rabbit_types:info_keys()) -> - rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(has_for_source/1 :: (rabbit_types:binding_source()) -> boolean()). --spec(remove_for_source/1 :: (rabbit_types:binding_source()) -> bindings()). --spec(remove_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(remove_transient_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(process_deletions/1 :: (deletions()) -> rabbit_misc:thunk('ok')). --spec(combine_deletions/2 :: (deletions(), deletions()) -> deletions()). --spec(add_deletion/3 :: (rabbit_exchange:name(), - {'undefined' | rabbit_types:exchange(), - 'deleted' | 'not_deleted', - bindings()}, deletions()) -> deletions()). --spec(new_deletions/0 :: () -> deletions()). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]). - -recover(XNames, QNames) -> - rabbit_misc:table_filter( - fun (Route) -> - mnesia:read({rabbit_semi_durable_route, Route}) =:= [] - end, - fun (Route, true) -> - ok = mnesia:write(rabbit_semi_durable_route, Route, write); - (_Route, false) -> - ok - end, rabbit_durable_route), - XNameSet = sets:from_list(XNames), - QNameSet = sets:from_list(QNames), - SelectSet = fun (#resource{kind = exchange}) -> XNameSet; - (#resource{kind = queue}) -> QNameSet - end, - [recover_semi_durable_route(R, SelectSet(Dst)) || - R = #route{binding = #binding{destination = Dst}} <- - rabbit_misc:dirty_read_all(rabbit_semi_durable_route)], - ok. - -recover_semi_durable_route(R = #route{binding = B}, ToRecover) -> - #binding{source = Src, destination = Dst} = B, - {ok, X} = rabbit_exchange:lookup(Src), - rabbit_misc:execute_mnesia_transaction( - fun () -> - Rs = mnesia:match_object(rabbit_semi_durable_route, R, read), - case Rs =/= [] andalso sets:is_element(Dst, ToRecover) of - false -> no_recover; - true -> ok = sync_transient_route(R, fun mnesia:write/3), - rabbit_exchange:serial(X) - end - end, - fun (no_recover, _) -> ok; - (_Serial, true) -> x_callback(transaction, X, add_binding, B); - (Serial, false) -> x_callback(Serial, X, add_binding, B) - end). - -exists(Binding) -> - binding_action( - Binding, fun (_Src, _Dst, B) -> - rabbit_misc:const(mnesia:read({rabbit_route, B}) /= []) - end). - -add(Binding) -> add(Binding, fun (_Src, _Dst) -> ok end). - -add(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - %% this argument is used to check queue exclusivity; - %% in general, we want to fail on that in preference to - %% anything else - case InnerFun(Src, Dst) of - ok -> case mnesia:read({rabbit_route, B}) of - [] -> add(Src, Dst, B); - [_] -> fun rabbit_misc:const_ok/0 - end; - {error, _} = Err -> rabbit_misc:const(Err) - end - end). - -add(Src, Dst, B) -> - [SrcDurable, DstDurable] = [durable(E) || E <- [Src, Dst]], - case (not (SrcDurable andalso DstDurable) orelse - mnesia:read({rabbit_durable_route, B}) =:= []) of - true -> ok = sync_route(#route{binding = B}, SrcDurable, DstDurable, - fun mnesia:write/3), - ok = rabbit_exchange:callback( - Src, add_binding, [transaction, Src, B]), - Serial = rabbit_exchange:serial(Src), - fun () -> - ok = rabbit_exchange:callback( - Src, add_binding, [Serial, Src, B]), - ok = rabbit_event:notify(binding_created, info(B)) - end; - false -> rabbit_misc:const({error, binding_not_found}) - end. - -remove(Binding) -> remove(Binding, fun (_Src, _Dst) -> ok end). - -remove(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - case mnesia:read(rabbit_route, B, write) of - [] -> rabbit_misc:const({error, binding_not_found}); - [_] -> case InnerFun(Src, Dst) of - ok -> remove(Src, Dst, B); - {error, _} = Err -> rabbit_misc:const(Err) - end - end - end). - -remove(Src, Dst, B) -> - ok = sync_route(#route{binding = B}, durable(Src), durable(Dst), - fun mnesia:delete_object/3), - Deletions = maybe_auto_delete(B#binding.source, [B], new_deletions()), - process_deletions(Deletions). - -list(VHostPath) -> - VHostResource = rabbit_misc:r(VHostPath, '_'), - Route = #route{binding = #binding{source = VHostResource, - destination = VHostResource, - _ = '_'}, - _ = '_'}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_source(SrcName) -> - mnesia:async_dirty( - fun() -> - Route = #route{binding = #binding{source = SrcName, _ = '_'}}, - [B || #route{binding = B} - <- mnesia:match_object(rabbit_route, Route, read)] - end). - -list_for_destination(DstName) -> - mnesia:async_dirty( - fun() -> - Route = #route{binding = #binding{destination = DstName, - _ = '_'}}, - [reverse_binding(B) || - #reverse_route{reverse_binding = B} <- - mnesia:match_object(rabbit_reverse_route, - reverse_route(Route), read)] - end). - -list_for_source_and_destination(SrcName, DstName) -> - mnesia:async_dirty( - fun() -> - Route = #route{binding = #binding{source = SrcName, - destination = DstName, - _ = '_'}}, - [B || #route{binding = B} <- mnesia:match_object(rabbit_route, - Route, read)] - end). - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, B) -> [{Item, i(Item, B)} || Item <- Items]. - -i(source_name, #binding{source = SrcName}) -> SrcName#resource.name; -i(source_kind, #binding{source = SrcName}) -> SrcName#resource.kind; -i(destination_name, #binding{destination = DstName}) -> DstName#resource.name; -i(destination_kind, #binding{destination = DstName}) -> DstName#resource.kind; -i(routing_key, #binding{key = RoutingKey}) -> RoutingKey; -i(arguments, #binding{args = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(B = #binding{}) -> infos(?INFO_KEYS, B). - -info(B = #binding{}, Items) -> infos(Items, B). - -info_all(VHostPath) -> map(VHostPath, fun (B) -> info(B) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (B) -> info(B, Items) end). - -has_for_source(SrcName) -> - Match = #route{binding = #binding{source = SrcName, _ = '_'}}, - %% we need to check for durable routes here too in case a bunch of - %% routes to durable queues have been removed temporarily as a - %% result of a node failure - contains(rabbit_route, Match) orelse - contains(rabbit_semi_durable_route, Match). - -remove_for_source(SrcName) -> - Match = #route{binding = #binding{source = SrcName, _ = '_'}}, - Routes = lists:usort( - mnesia:match_object(rabbit_route, Match, write) ++ - mnesia:match_object(rabbit_durable_route, Match, write)), - [begin - sync_route(Route, fun mnesia:delete_object/3), - Route#route.binding - end || Route <- Routes]. - -remove_for_destination(Dst) -> - remove_for_destination( - Dst, fun (R) -> sync_route(R, fun mnesia:delete_object/3) end). - -remove_transient_for_destination(Dst) -> - remove_for_destination( - Dst, fun (R) -> sync_transient_route(R, fun mnesia:delete_object/3) end). - -%%---------------------------------------------------------------------------- - -durable(#exchange{durable = D}) -> D; -durable(#amqqueue{durable = D}) -> D. - -binding_action(Binding = #binding{source = SrcName, - destination = DstName, - args = Arguments}, Fun) -> - call_with_source_and_destination( - SrcName, DstName, - fun (Src, Dst) -> - SortedArgs = rabbit_misc:sort_field_table(Arguments), - Fun(Src, Dst, Binding#binding{args = SortedArgs}) - end). - -sync_route(R, Fun) -> sync_route(R, true, true, Fun). - -sync_route(Route, true, true, Fun) -> - ok = Fun(rabbit_durable_route, Route, write), - sync_route(Route, false, true, Fun); - -sync_route(Route, false, true, Fun) -> - ok = Fun(rabbit_semi_durable_route, Route, write), - sync_route(Route, false, false, Fun); - -sync_route(Route, _SrcDurable, false, Fun) -> - sync_transient_route(Route, Fun). - -sync_transient_route(Route, Fun) -> - ok = Fun(rabbit_route, Route, write), - ok = Fun(rabbit_reverse_route, reverse_route(Route), write). - -call_with_source_and_destination(SrcName, DstName, Fun) -> - SrcTable = table_for_resource(SrcName), - DstTable = table_for_resource(DstName), - ErrFun = fun (Err) -> rabbit_misc:const({error, Err}) end, - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case {mnesia:read({SrcTable, SrcName}), - mnesia:read({DstTable, DstName})} of - {[Src], [Dst]} -> Fun(Src, Dst); - {[], [_] } -> ErrFun(source_not_found); - {[_], [] } -> ErrFun(destination_not_found); - {[], [] } -> ErrFun(source_and_destination_not_found) - end - end). - -table_for_resource(#resource{kind = exchange}) -> rabbit_exchange; -table_for_resource(#resource{kind = queue}) -> rabbit_queue. - -contains(Table, MatchHead) -> - continue(mnesia:select(Table, [{MatchHead, [], ['$_']}], 1, read)). - -continue('$end_of_table') -> false; -continue({[_|_], _}) -> true; -continue({[], Continuation}) -> continue(mnesia:select(Continuation)). - -remove_for_destination(DstName, DeleteFun) -> - Match = reverse_route( - #route{binding = #binding{destination = DstName, _ = '_'}}), - ReverseRoutes = mnesia:match_object(rabbit_reverse_route, Match, write), - Bindings = [begin - Route = reverse_route(ReverseRoute), - ok = DeleteFun(Route), - Route#route.binding - end || ReverseRoute <- ReverseRoutes], - group_bindings_fold(fun maybe_auto_delete/3, new_deletions(), - lists:keysort(#binding.source, Bindings)). - -%% Requires that its input binding list is sorted in exchange-name -%% order, so that the grouping of bindings (for passing to -%% group_bindings_and_auto_delete1) works properly. -group_bindings_fold(_Fun, Acc, []) -> - Acc; -group_bindings_fold(Fun, Acc, [B = #binding{source = SrcName} | Bs]) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B]). - -group_bindings_fold( - Fun, SrcName, Acc, [B = #binding{source = SrcName} | Bs], Bindings) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B | Bindings]); -group_bindings_fold(Fun, SrcName, Acc, Removed, Bindings) -> - %% Either Removed is [], or its head has a non-matching SrcName. - group_bindings_fold(Fun, Fun(SrcName, Bindings, Acc), Removed). - -maybe_auto_delete(XName, Bindings, Deletions) -> - {Entry, Deletions1} = - case mnesia:read({rabbit_exchange, XName}) of - [] -> {{undefined, not_deleted, Bindings}, Deletions}; - [X] -> case rabbit_exchange:maybe_auto_delete(X) of - not_deleted -> - {{X, not_deleted, Bindings}, Deletions}; - {deleted, Deletions2} -> - {{X, deleted, Bindings}, - combine_deletions(Deletions, Deletions2)} - end - end, - add_deletion(XName, Entry, Deletions1). - -reverse_route(#route{binding = Binding}) -> - #reverse_route{reverse_binding = reverse_binding(Binding)}; - -reverse_route(#reverse_route{reverse_binding = Binding}) -> - #route{binding = reverse_binding(Binding)}. - -reverse_binding(#reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}; - -reverse_binding(#binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}. - -%% ---------------------------------------------------------------------------- -%% Binding / exchange deletion abstraction API -%% ---------------------------------------------------------------------------- - -anything_but( NotThis, NotThis, NotThis) -> NotThis; -anything_but( NotThis, NotThis, This) -> This; -anything_but( NotThis, This, NotThis) -> This; -anything_but(_NotThis, This, This) -> This. - -new_deletions() -> dict:new(). - -add_deletion(XName, Entry, Deletions) -> - dict:update(XName, fun (Entry1) -> merge_entry(Entry1, Entry) end, - Entry, Deletions). - -combine_deletions(Deletions1, Deletions2) -> - dict:merge(fun (_XName, Entry1, Entry2) -> merge_entry(Entry1, Entry2) end, - Deletions1, Deletions2). - -merge_entry({X1, Deleted1, Bindings1}, {X2, Deleted2, Bindings2}) -> - {anything_but(undefined, X1, X2), - anything_but(not_deleted, Deleted1, Deleted2), - [Bindings1 | Bindings2]}. - -process_deletions(Deletions) -> - AugmentedDeletions = - dict:map(fun (_XName, {X, deleted, Bindings}) -> - Bs = lists:flatten(Bindings), - x_callback(transaction, X, delete, Bs), - {X, deleted, Bs, none}; - (_XName, {X, not_deleted, Bindings}) -> - Bs = lists:flatten(Bindings), - x_callback(transaction, X, remove_bindings, Bs), - {X, not_deleted, Bs, rabbit_exchange:serial(X)} - end, Deletions), - fun() -> - dict:fold(fun (XName, {X, deleted, Bs, Serial}, ok) -> - ok = rabbit_event:notify( - exchange_deleted, [{name, XName}]), - del_notify(Bs), - x_callback(Serial, X, delete, Bs); - (_XName, {X, not_deleted, Bs, Serial}, ok) -> - del_notify(Bs), - x_callback(Serial, X, remove_bindings, Bs) - end, ok, AugmentedDeletions) - end. - -del_notify(Bs) -> [rabbit_event:notify(binding_deleted, info(B)) || B <- Bs]. - -x_callback(Arg, X, F, Bs) -> ok = rabbit_exchange:callback(X, F, [Arg, X, Bs]). diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl deleted file mode 100644 index f332018d..00000000 --- a/src/rabbit_channel.erl +++ /dev/null @@ -1,1534 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/10, do/2, do/3, flush/1, shutdown/1]). --export([send_command/2, deliver/4, flushed/2, confirm/2]). --export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). --export([refresh_config_all/0, emit_stats/1, ready_for_close/1]). --export([force_event_refresh/0]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, format_message_queue/2]). - --record(ch, {state, protocol, channel, reader_pid, writer_pid, conn_pid, - limiter_pid, start_limiter_fun, tx_status, next_tag, - unacked_message_q, uncommitted_message_q, uncommitted_ack_q, - user, virtual_host, most_recently_declared_queue, - consumer_mapping, blocking, consumer_monitors, queue_collector_pid, - stats_timer, confirm_enabled, publish_seqno, unconfirmed_mq, - unconfirmed_qm, confirmed, capabilities, trace_state}). - --define(MAX_PERMISSION_CACHE_SIZE, 12). - --define(STATISTICS_KEYS, - [pid, - transactional, - confirm, - consumer_count, - messages_unacknowledged, - messages_unconfirmed, - messages_uncommitted, - acks_uncommitted, - prefetch_count, - client_flow_blocked]). - --define(CREATION_EVENT_KEYS, - [pid, - connection, - number, - user, - vhost]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([channel_number/0]). - --type(channel_number() :: non_neg_integer()). - --spec(start_link/10 :: - (channel_number(), pid(), pid(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid(), fun ((non_neg_integer()) -> rabbit_types:ok(pid()))) -> - rabbit_types:ok_pid_or_error()). --spec(do/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(do/3 :: (pid(), rabbit_framing:amqp_method_record(), - rabbit_types:maybe(rabbit_types:content())) -> 'ok'). --spec(flush/1 :: (pid()) -> 'ok'). --spec(shutdown/1 :: (pid()) -> 'ok'). --spec(send_command/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(deliver/4 :: - (pid(), rabbit_types:ctag(), boolean(), rabbit_amqqueue:qmsg()) - -> 'ok'). --spec(flushed/2 :: (pid(), pid()) -> 'ok'). --spec(confirm/2 ::(pid(), [non_neg_integer()]) -> 'ok'). --spec(list/0 :: () -> [pid()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(info_all/0 :: () -> [rabbit_types:infos()]). --spec(info_all/1 :: (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(refresh_config_all/0 :: () -> 'ok'). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(ready_for_close/1 :: (pid()) -> 'ok'). --spec(force_event_refresh/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun) -> - gen_server2:start_link( - ?MODULE, [Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, - VHost, Capabilities, CollectorPid, StartLimiterFun], []). - -do(Pid, Method) -> - do(Pid, Method, none). - -do(Pid, Method, Content) -> - gen_server2:cast(Pid, {method, Method, Content}). - -flush(Pid) -> - gen_server2:call(Pid, flush, infinity). - -shutdown(Pid) -> - gen_server2:cast(Pid, terminate). - -send_command(Pid, Msg) -> - gen_server2:cast(Pid, {command, Msg}). - -deliver(Pid, ConsumerTag, AckRequired, Msg) -> - gen_server2:cast(Pid, {deliver, ConsumerTag, AckRequired, Msg}). - -flushed(Pid, QPid) -> - gen_server2:cast(Pid, {flushed, QPid}). - -confirm(Pid, MsgSeqNos) -> - gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). - -list() -> - pg2_fixed:get_members(rabbit_channels). - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server2:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server2:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all() -> - rabbit_misc:filter_exit_map(fun (C) -> info(C) end, list()). - -info_all(Items) -> - rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). - -refresh_config_all() -> - rabbit_misc:upmap( - fun (C) -> gen_server2:call(C, refresh_config) end, list()), - ok. - -emit_stats(Pid) -> - gen_server2:cast(Pid, emit_stats). - -ready_for_close(Pid) -> - gen_server2:cast(Pid, ready_for_close). - -force_event_refresh() -> - rabbit_misc:filter_exit_map(fun (C) -> force_event_refresh(C) end, list()). - -force_event_refresh(Pid) -> - gen_server2:cast(Pid, force_event_refresh). - -%%--------------------------------------------------------------------------- - -init([Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun]) -> - process_flag(trap_exit, true), - ok = pg2_fixed:join(rabbit_channels, self()), - StatsTimer = rabbit_event:init_stats_timer(), - State = #ch{state = starting, - protocol = Protocol, - channel = Channel, - reader_pid = ReaderPid, - writer_pid = WriterPid, - conn_pid = ConnPid, - limiter_pid = undefined, - start_limiter_fun = StartLimiterFun, - tx_status = none, - next_tag = 1, - unacked_message_q = queue:new(), - uncommitted_message_q = queue:new(), - uncommitted_ack_q = queue:new(), - user = User, - virtual_host = VHost, - most_recently_declared_queue = <<>>, - consumer_mapping = dict:new(), - blocking = dict:new(), - consumer_monitors = dict:new(), - queue_collector_pid = CollectorPid, - stats_timer = StatsTimer, - confirm_enabled = false, - publish_seqno = 1, - unconfirmed_mq = gb_trees:empty(), - unconfirmed_qm = gb_trees:empty(), - confirmed = [], - capabilities = Capabilities, - trace_state = rabbit_trace:init(VHost)}, - rabbit_event:notify(channel_created, infos(?CREATION_EVENT_KEYS, State)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State) end), - {ok, State, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - emit_stats -> 7; - {confirm, _MsgSeqNos, _QPid} -> 5; - _ -> 0 - end. - -handle_call(flush, _From, State) -> - reply(ok, State); - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(refresh_config, _From, State = #ch{virtual_host = VHost}) -> - reply(ok, State#ch{trace_state = rabbit_trace:init(VHost)}); - -handle_call(_Request, _From, State) -> - noreply(State). - -handle_cast({method, Method, Content}, State) -> - try handle_method(Method, Content, State) of - {reply, Reply, NewState} -> - ok = rabbit_writer:send_command(NewState#ch.writer_pid, Reply), - noreply(NewState); - {noreply, NewState} -> - noreply(NewState); - stop -> - {stop, normal, State} - catch - exit:Reason = #amqp_error{} -> - MethodName = rabbit_misc:method_record_type(Method), - send_exception(Reason#amqp_error{method = MethodName}, State); - _:Reason -> - {stop, {Reason, erlang:get_stacktrace()}, State} - end; - -handle_cast({flushed, QPid}, State) -> - {noreply, queue_blocked(QPid, State), hibernate}; - -handle_cast(ready_for_close, State = #ch{state = closing, - writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command_sync(WriterPid, #'channel.close_ok'{}), - {stop, normal, State}; - -handle_cast(terminate, State) -> - {stop, normal, State}; - -handle_cast({command, #'basic.consume_ok'{consumer_tag = ConsumerTag} = Msg}, - State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(monitor_consumer(ConsumerTag, State)); - -handle_cast({command, Msg}, State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(State); - -handle_cast({deliver, ConsumerTag, AckRequired, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}}}, - State = #ch{writer_pid = WriterPid, - next_tag = DeliveryTag, - trace_state = TraceState}) -> - State1 = lock_message(AckRequired, - ack_record(DeliveryTag, ConsumerTag, Msg), - State), - - M = #'basic.deliver'{consumer_tag = ConsumerTag, - delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - rabbit_writer:send_command_and_notify(WriterPid, QPid, self(), M, Content), - maybe_incr_stats([{QPid, 1}], case AckRequired of - true -> deliver; - false -> deliver_no_ack - end, State), - maybe_incr_redeliver_stats(Redelivered, QPid, State), - rabbit_trace:tap_trace_out(Msg, TraceState), - noreply(State1#ch{next_tag = DeliveryTag + 1}); - -handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> - internal_emit_stats(State), - noreply([ensure_stats_timer], - State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}); - -handle_cast(force_event_refresh, State) -> - rabbit_event:notify(channel_exists, infos(?CREATION_EVENT_KEYS, State)), - noreply(State); - -handle_cast({confirm, MsgSeqNos, From}, State) -> - State1 = #ch{confirmed = C} = confirm(MsgSeqNos, From, State), - noreply([send_confirms], State1, case C of [] -> hibernate; _ -> 0 end). - -handle_info(timeout, State) -> - noreply(State); - -handle_info({'DOWN', MRef, process, QPid, Reason}, - State = #ch{consumer_monitors = ConsumerMonitors}) -> - noreply( - case dict:find(MRef, ConsumerMonitors) of - error -> - handle_publishing_queue_down(QPid, Reason, State); - {ok, ConsumerTag} -> - handle_consuming_queue_down(MRef, ConsumerTag, State) - end); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}. - -handle_pre_hibernate(State = #ch{stats_timer = StatsTimer}) -> - ok = clear_permission_cache(), - rabbit_event:if_enabled(StatsTimer, - fun () -> - internal_emit_stats( - State, [{idle_since, now()}]) - end), - StatsTimer1 = rabbit_event:stop_stats_timer(StatsTimer), - {hibernate, State#ch{stats_timer = StatsTimer1}}. - -terminate(Reason, State) -> - {Res, _State1} = notify_queues(State), - case Reason of - normal -> ok = Res; - shutdown -> ok = Res; - {shutdown, _Term} -> ok = Res; - _ -> ok - end, - rabbit_event:notify(channel_closed, [{pid, self()}]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). - -%%--------------------------------------------------------------------------- - -reply(Reply, NewState) -> reply(Reply, [], NewState). - -reply(Reply, Mask, NewState) -> reply(Reply, Mask, NewState, hibernate). - -reply(Reply, Mask, NewState, Timeout) -> - {reply, Reply, next_state(Mask, NewState), Timeout}. - -noreply(NewState) -> noreply([], NewState). - -noreply(Mask, NewState) -> noreply(Mask, NewState, hibernate). - -noreply(Mask, NewState, Timeout) -> - {noreply, next_state(Mask, NewState), Timeout}. - -next_state(Mask, State) -> - lists:foldl(fun (ensure_stats_timer, State1) -> ensure_stats_timer(State1); - (send_confirms, State1) -> send_confirms(State1) - end, State, [ensure_stats_timer, send_confirms] -- Mask). - -ensure_stats_timer(State = #ch{stats_timer = StatsTimer}) -> - ChPid = self(), - State#ch{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(ChPid) end)}. - -return_ok(State, true, _Msg) -> {noreply, State}; -return_ok(State, false, Msg) -> {reply, Msg, State}. - -ok_msg(true, _Msg) -> undefined; -ok_msg(false, Msg) -> Msg. - -send_exception(Reason, State = #ch{protocol = Protocol, - channel = Channel, - writer_pid = WriterPid, - reader_pid = ReaderPid, - conn_pid = ConnPid}) -> - {CloseChannel, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - rabbit_log:error("connection ~p, channel ~p - error:~n~p~n", - [ConnPid, Channel, Reason]), - %% something bad's happened: notify_queues may not be 'ok' - {_Result, State1} = notify_queues(State), - case CloseChannel of - Channel -> ok = rabbit_writer:send_command(WriterPid, CloseMethod), - {noreply, State1}; - _ -> ReaderPid ! {channel_exit, Channel, Reason}, - {stop, normal, State1} - end. - -return_queue_declare_ok(#resource{name = ActualName}, - NoWait, MessageCount, ConsumerCount, State) -> - return_ok(State#ch{most_recently_declared_queue = ActualName}, NoWait, - #'queue.declare_ok'{queue = ActualName, - message_count = MessageCount, - consumer_count = ConsumerCount}). - -check_resource_access(User, Resource, Perm) -> - V = {Resource, Perm}, - Cache = case get(permission_cache) of - undefined -> []; - Other -> Other - end, - CacheTail = - case lists:member(V, Cache) of - true -> lists:delete(V, Cache); - false -> ok = rabbit_access_control:check_resource_access( - User, Resource, Perm), - lists:sublist(Cache, ?MAX_PERMISSION_CACHE_SIZE - 1) - end, - put(permission_cache, [V | CacheTail]), - ok. - -clear_permission_cache() -> - erase(permission_cache), - ok. - -check_configure_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, configure). - -check_write_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, write). - -check_read_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, read). - -check_user_id_header(#'P_basic'{user_id = undefined}, _) -> - ok; -check_user_id_header(#'P_basic'{user_id = Username}, - #ch{user = #user{username = Username}}) -> - ok; -check_user_id_header(#'P_basic'{user_id = Claimed}, - #ch{user = #user{username = Actual}}) -> - rabbit_misc:protocol_error( - precondition_failed, "user_id property set to '~s' but " - "authenticated user was '~s'", [Claimed, Actual]). - -check_internal_exchange(#exchange{name = Name, internal = true}) -> - rabbit_misc:protocol_error(access_refused, - "cannot publish to internal ~s", - [rabbit_misc:rs(Name)]); -check_internal_exchange(_) -> - ok. - -expand_queue_name_shortcut(<<>>, #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_queue_name_shortcut(<<>>, #ch{virtual_host = VHostPath, - most_recently_declared_queue = MRDQ}) -> - rabbit_misc:r(VHostPath, queue, MRDQ); -expand_queue_name_shortcut(QueueNameBin, #ch{virtual_host = VHostPath}) -> - rabbit_misc:r(VHostPath, queue, QueueNameBin). - -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = MRDQ}) -> - MRDQ; -expand_routing_key_shortcut(_QueueNameBin, RoutingKey, _State) -> - RoutingKey. - -expand_binding(queue, DestinationNameBin, RoutingKey, State) -> - {expand_queue_name_shortcut(DestinationNameBin, State), - expand_routing_key_shortcut(DestinationNameBin, RoutingKey, State)}; -expand_binding(exchange, DestinationNameBin, RoutingKey, State) -> - {rabbit_misc:r(State#ch.virtual_host, exchange, DestinationNameBin), - RoutingKey}. - -check_not_default_exchange(#resource{kind = exchange, name = <<"">>}) -> - rabbit_misc:protocol_error( - access_refused, "operation not permitted on the default exchange", []); -check_not_default_exchange(_) -> - ok. - -%% check that an exchange/queue name does not contain the reserved -%% "amq." prefix. -%% -%% One, quite reasonable, interpretation of the spec, taken by the -%% QPid M1 Java client, is that the exclusion of "amq." prefixed names -%% only applies on actual creation, and not in the cases where the -%% entity already exists. This is how we use this function in the code -%% below. However, AMQP JIRA 123 changes that in 0-10, and possibly -%% 0-9SP1, making it illegal to attempt to declare an exchange/queue -%% with an amq.* name when passive=false. So this will need -%% revisiting. -%% -%% TODO: enforce other constraints on name. See AMQP JIRA 69. -check_name(Kind, NameBin = <<"amq.", _/binary>>) -> - rabbit_misc:protocol_error( - access_refused, - "~s name '~s' contains reserved prefix 'amq.*'",[Kind, NameBin]); -check_name(_Kind, NameBin) -> - NameBin. - -queue_blocked(QPid, State = #ch{blocking = Blocking}) -> - case dict:find(QPid, Blocking) of - error -> State; - {ok, MRef} -> true = erlang:demonitor(MRef), - Blocking1 = dict:erase(QPid, Blocking), - ok = case dict:size(Blocking1) of - 0 -> rabbit_writer:send_command( - State#ch.writer_pid, - #'channel.flow_ok'{active = false}); - _ -> ok - end, - State#ch{blocking = Blocking1} - end. - -record_confirm(undefined, _, State) -> - State; -record_confirm(MsgSeqNo, XName, State) -> - record_confirms([{MsgSeqNo, XName}], State). - -record_confirms([], State) -> - State; -record_confirms(MXs, State = #ch{confirmed = C}) -> - State#ch{confirmed = [MXs | C]}. - -confirm([], _QPid, State) -> - State; -confirm(MsgSeqNos, QPid, State) -> - {MXs, State1} = process_confirms(MsgSeqNos, QPid, false, State), - record_confirms(MXs, State1). - -process_confirms(MsgSeqNos, QPid, Nack, State = #ch{unconfirmed_mq = UMQ, - unconfirmed_qm = UQM}) -> - {MXs, UMQ1, UQM1} = - lists:foldl( - fun(MsgSeqNo, {_MXs, UMQ0, _UQM} = Acc) -> - case gb_trees:lookup(MsgSeqNo, UMQ0) of - {value, XQ} -> remove_unconfirmed(MsgSeqNo, QPid, XQ, - Acc, Nack); - none -> Acc - end - end, {[], UMQ, UQM}, MsgSeqNos), - {MXs, State#ch{unconfirmed_mq = UMQ1, unconfirmed_qm = UQM1}}. - -remove_unconfirmed(MsgSeqNo, QPid, {XName, Qs}, {MXs, UMQ, UQM}, Nack) -> - UQM1 = case gb_trees:lookup(QPid, UQM) of - {value, MsgSeqNos} -> - MsgSeqNos1 = gb_sets:delete(MsgSeqNo, MsgSeqNos), - case gb_sets:is_empty(MsgSeqNos1) of - true -> gb_trees:delete(QPid, UQM); - false -> gb_trees:update(QPid, MsgSeqNos1, UQM) - end; - none -> - UQM - end, - Qs1 = gb_sets:del_element(QPid, Qs), - %% If QPid somehow died initiating a nack, clear the message from - %% internal data-structures. Also, cleanup empty entries. - case (Nack orelse gb_sets:is_empty(Qs1)) of - true -> - {[{MsgSeqNo, XName} | MXs], gb_trees:delete(MsgSeqNo, UMQ), UQM1}; - false -> - {MXs, gb_trees:update(MsgSeqNo, {XName, Qs1}, UMQ), UQM1} - end. - -handle_method(#'channel.open'{}, _, State = #ch{state = starting}) -> - {reply, #'channel.open_ok'{}, State#ch{state = running}}; - -handle_method(#'channel.open'{}, _, _State) -> - rabbit_misc:protocol_error( - command_invalid, "second 'channel.open' seen", []); - -handle_method(_Method, _, #ch{state = starting}) -> - rabbit_misc:protocol_error(channel_error, "expected 'channel.open'", []); - -handle_method(#'channel.close_ok'{}, _, #ch{state = closing}) -> - stop; - -handle_method(#'channel.close'{}, _, State = #ch{state = closing}) -> - {reply, #'channel.close_ok'{}, State}; - -handle_method(_Method, _, State = #ch{state = closing}) -> - {noreply, State}; - -handle_method(#'channel.close'{}, _, State = #ch{reader_pid = ReaderPid}) -> - {ok, State1} = notify_queues(State), - ReaderPid ! {channel_closing, self()}, - {noreply, State1}; - -%% Even though the spec prohibits the client from sending commands -%% while waiting for the reply to a synchronous command, we generally -%% do allow this...except in the case of a pending tx.commit, where -%% it could wreak havoc. -handle_method(_Method, _, #ch{tx_status = TxStatus}) - when TxStatus =/= none andalso TxStatus =/= in_progress -> - rabbit_misc:protocol_error( - channel_error, "unexpected command while processing 'tx.commit'", []); - -handle_method(#'access.request'{},_, State) -> - {reply, #'access.request_ok'{ticket = 1}, State}; - -handle_method(#'basic.publish'{exchange = ExchangeNameBin, - routing_key = RoutingKey, - mandatory = Mandatory, - immediate = Immediate}, - Content, State = #ch{virtual_host = VHostPath, - tx_status = TxStatus, - confirm_enabled = ConfirmEnabled, - trace_state = TraceState}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_write_permitted(ExchangeName, State), - Exchange = rabbit_exchange:lookup_or_die(ExchangeName), - check_internal_exchange(Exchange), - %% We decode the content's properties here because we're almost - %% certain to want to look at delivery-mode and priority. - DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), - check_user_id_header(DecodedContent#content.properties, State), - {MsgSeqNo, State1} = - case {TxStatus, ConfirmEnabled} of - {none, false} -> {undefined, State}; - {_, _} -> SeqNo = State#ch.publish_seqno, - {SeqNo, State#ch{publish_seqno = SeqNo + 1}} - end, - case rabbit_basic:message(ExchangeName, RoutingKey, DecodedContent) of - {ok, Message} -> - rabbit_trace:tap_trace_in(Message, TraceState), - Delivery = rabbit_basic:delivery(Mandatory, Immediate, Message, - MsgSeqNo), - QNames = rabbit_exchange:route(Exchange, Delivery), - {noreply, - case TxStatus of - none -> deliver_to_queues({Delivery, QNames}, State1); - in_progress -> TMQ = State1#ch.uncommitted_message_q, - NewTMQ = queue:in({Delivery, QNames}, TMQ), - State1#ch{uncommitted_message_q = NewTMQ} - end}; - {error, Reason} -> - rabbit_misc:protocol_error(precondition_failed, - "invalid message: ~p", [Reason]) - end; - -handle_method(#'basic.nack'{delivery_tag = DeliveryTag, - multiple = Multiple, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, Multiple, State); - -handle_method(#'basic.ack'{delivery_tag = DeliveryTag, - multiple = Multiple}, - _, State = #ch{unacked_message_q = UAMQ, - tx_status = TxStatus}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - State1 = State#ch{unacked_message_q = Remaining}, - {noreply, - case TxStatus of - none -> ack(Acked, State1); - in_progress -> NewTAQ = queue:join(State1#ch.uncommitted_ack_q, Acked), - State1#ch{uncommitted_ack_q = NewTAQ} - end}; - -handle_method(#'basic.get'{queue = QueueNameBin, - no_ack = NoAck}, - _, State = #ch{writer_pid = WriterPid, - conn_pid = ConnPid, - next_tag = DeliveryTag, - trace_state = TraceState}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> rabbit_amqqueue:basic_get(Q, self(), NoAck) end) of - {ok, MessageCount, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}}} -> - State1 = lock_message(not(NoAck), - ack_record(DeliveryTag, none, Msg), - State), - maybe_incr_stats([{QPid, 1}], case NoAck of - true -> get_no_ack; - false -> get - end, State), - maybe_incr_redeliver_stats(Redelivered, QPid, State), - rabbit_trace:tap_trace_out(Msg, TraceState), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.get_ok'{delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey, - message_count = MessageCount}, - Content), - {noreply, State1#ch{next_tag = DeliveryTag + 1}}; - empty -> - {reply, #'basic.get_empty'{}, State} - end; - -handle_method(#'basic.consume'{queue = QueueNameBin, - consumer_tag = ConsumerTag, - no_local = _, % FIXME: implement - no_ack = NoAck, - exclusive = ExclusiveConsume, - nowait = NoWait}, - _, State = #ch{conn_pid = ConnPid, - limiter_pid = LimiterPid, - consumer_mapping = ConsumerMapping}) -> - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - ActualConsumerTag = - case ConsumerTag of - <<>> -> rabbit_guid:binstring_guid("amq.ctag"); - Other -> Other - end, - - %% We get the queue process to send the consume_ok on our - %% behalf. This is for symmetry with basic.cancel - see - %% the comment in that method for why. - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> - {rabbit_amqqueue:basic_consume( - Q, NoAck, self(), LimiterPid, - ActualConsumerTag, ExclusiveConsume, - ok_msg(NoWait, #'basic.consume_ok'{ - consumer_tag = ActualConsumerTag})), - Q} - end) of - {ok, Q} -> - State1 = State#ch{consumer_mapping = - dict:store(ActualConsumerTag, - {Q, undefined}, - ConsumerMapping)}, - {noreply, - case NoWait of - true -> monitor_consumer(ActualConsumerTag, State1); - false -> State1 - end}; - {{error, exclusive_consume_unavailable}, _Q} -> - rabbit_misc:protocol_error( - access_refused, "~s in exclusive use", - [rabbit_misc:rs(QueueName)]) - end; - {ok, _} -> - %% Attempted reuse of consumer tag. - rabbit_misc:protocol_error( - not_allowed, "attempt to reuse consumer tag '~s'", [ConsumerTag]) - end; - -handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, - nowait = NoWait}, - _, State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors}) -> - OkMsg = #'basic.cancel_ok'{consumer_tag = ConsumerTag}, - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - %% Spec requires we ignore this situation. - return_ok(State, NoWait, OkMsg); - {ok, {Q, MRef}} -> - ConsumerMonitors1 = - case MRef of - undefined -> ConsumerMonitors; - _ -> true = erlang:demonitor(MRef), - dict:erase(MRef, ConsumerMonitors) - end, - NewState = State#ch{consumer_mapping = dict:erase(ConsumerTag, - ConsumerMapping), - consumer_monitors = ConsumerMonitors1}, - %% In order to ensure that no more messages are sent to - %% the consumer after the cancel_ok has been sent, we get - %% the queue process to send the cancel_ok on our - %% behalf. If we were sending the cancel_ok ourselves it - %% might overtake a message sent previously by the queue. - case rabbit_misc:with_exit_handler( - fun () -> {error, not_found} end, - fun () -> - rabbit_amqqueue:basic_cancel( - Q, self(), ConsumerTag, - ok_msg(NoWait, #'basic.cancel_ok'{ - consumer_tag = ConsumerTag})) - end) of - ok -> - {noreply, NewState}; - {error, not_found} -> - %% Spec requires we ignore this situation. - return_ok(NewState, NoWait, OkMsg) - end - end; - -handle_method(#'basic.qos'{global = true}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "global=true", []); - -handle_method(#'basic.qos'{prefetch_size = Size}, _, _State) when Size /= 0 -> - rabbit_misc:protocol_error(not_implemented, - "prefetch_size!=0 (~w)", [Size]); - -handle_method(#'basic.qos'{prefetch_count = PrefetchCount}, - _, State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case {LimiterPid, PrefetchCount} of - {undefined, 0} -> undefined; - {undefined, _} -> start_limiter(State); - {_, _} -> LimiterPid - end, - LimiterPid2 = case rabbit_limiter:limit(LimiterPid1, PrefetchCount) of - ok -> LimiterPid1; - stopped -> unlimit_queues(State) - end, - {reply, #'basic.qos_ok'{}, State#ch{limiter_pid = LimiterPid2}}; - -handle_method(#'basic.recover_async'{requeue = true}, - _, State = #ch{unacked_message_q = UAMQ, - limiter_pid = LimiterPid}) -> - OkFun = fun () -> ok end, - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - %% The Qpid python test suite incorrectly assumes - %% that messages will be requeued in their original - %% order. To keep it happy we reverse the id list - %% since we are given them in reverse order. - rabbit_misc:with_exit_handler( - OkFun, fun () -> - rabbit_amqqueue:requeue( - QPid, lists:reverse(MsgIds), self()) - end) - end, ok, UAMQ), - ok = notify_limiter(LimiterPid, UAMQ), - %% No answer required - basic.recover is the newer, synchronous - %% variant of this method - {noreply, State#ch{unacked_message_q = queue:new()}}; - -handle_method(#'basic.recover_async'{requeue = false}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "requeue=false", []); - -handle_method(#'basic.recover'{requeue = Requeue}, Content, State) -> - {noreply, State2 = #ch{writer_pid = WriterPid}} = - handle_method(#'basic.recover_async'{requeue = Requeue}, - Content, - State), - ok = rabbit_writer:send_command(WriterPid, #'basic.recover_ok'{}), - {noreply, State2}; - -handle_method(#'basic.reject'{delivery_tag = DeliveryTag, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, false, State); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - type = TypeNameBin, - passive = false, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - nowait = NoWait, - arguments = Args}, - _, State = #ch{virtual_host = VHostPath}) -> - CheckedType = rabbit_exchange:check_type(TypeNameBin), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - X = case rabbit_exchange:lookup(ExchangeName) of - {ok, FoundX} -> FoundX; - {error, not_found} -> - check_name('exchange', ExchangeNameBin), - case rabbit_misc:r_arg(VHostPath, exchange, Args, - <<"alternate-exchange">>) of - undefined -> ok; - AName -> check_read_permitted(ExchangeName, State), - check_write_permitted(AName, State), - ok - end, - rabbit_exchange:declare(ExchangeName, - CheckedType, - Durable, - AutoDelete, - Internal, - Args) - end, - ok = rabbit_exchange:assert_equivalence(X, CheckedType, Durable, - AutoDelete, Internal, Args), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - _ = rabbit_exchange:lookup_or_die(ExchangeName), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.delete'{exchange = ExchangeNameBin, - if_unused = IfUnused, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - case rabbit_exchange:delete(ExchangeName, IfUnused) of - {error, not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(ExchangeName)]); - ok -> - return_ok(State, NoWait, #'exchange.delete_ok'{}) - end; - -handle_method(#'exchange.bind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.bind_ok'{}, NoWait, State); - -handle_method(#'exchange.unbind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.unbind_ok'{}, NoWait, State); - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = false, - durable = Durable, - exclusive = ExclusiveDeclare, - auto_delete = AutoDelete, - nowait = NoWait, - arguments = Args} = Declare, - _, State = #ch{virtual_host = VHostPath, - conn_pid = ConnPid, - queue_collector_pid = CollectorPid}) -> - Owner = case ExclusiveDeclare of - true -> ConnPid; - false -> none - end, - ActualNameBin = case QueueNameBin of - <<>> -> rabbit_guid:binstring_guid("amq.gen"); - Other -> check_name('queue', Other) - end, - QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> ok = rabbit_amqqueue:assert_equivalence( - Q, Durable, AutoDelete, Args, Owner), - rabbit_amqqueue:stat(Q) - end) of - {ok, MessageCount, ConsumerCount} -> - return_queue_declare_ok(QueueName, NoWait, MessageCount, - ConsumerCount, State); - {error, not_found} -> - case rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, - Args, Owner) of - {new, Q = #amqqueue{}} -> - %% We need to notify the reader within the channel - %% process so that we can be sure there are no - %% outstanding exclusive queues being declared as - %% the connection shuts down. - ok = case Owner of - none -> ok; - _ -> rabbit_queue_collector:register( - CollectorPid, Q) - end, - return_queue_declare_ok(QueueName, NoWait, 0, 0, State); - {existing, _Q} -> - %% must have been created between the stat and the - %% declare. Loop around again. - handle_method(Declare, none, State) - end - end; - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath, - conn_pid = ConnPid}) -> - QueueName = rabbit_misc:r(VHostPath, queue, QueueNameBin), - {{ok, MessageCount, ConsumerCount}, #amqqueue{} = Q} = - rabbit_amqqueue:with_or_die( - QueueName, fun (Q) -> {rabbit_amqqueue:stat(Q), Q} end), - ok = rabbit_amqqueue:check_exclusive_access(Q, ConnPid), - return_queue_declare_ok(QueueName, NoWait, MessageCount, ConsumerCount, - State); - -handle_method(#'queue.delete'{queue = QueueNameBin, - if_unused = IfUnused, - if_empty = IfEmpty, - nowait = NoWait}, - _, State = #ch{conn_pid = ConnPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> rabbit_amqqueue:delete(Q, IfUnused, IfEmpty) end) of - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(QueueName)]); - {error, not_empty} -> - rabbit_misc:protocol_error( - precondition_failed, "~s not empty", [rabbit_misc:rs(QueueName)]); - {ok, PurgedMessageCount} -> - return_ok(State, NoWait, - #'queue.delete_ok'{message_count = PurgedMessageCount}) - end; - -handle_method(#'queue.bind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.bind_ok'{}, NoWait, State); - -handle_method(#'queue.unbind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.unbind_ok'{}, false, State); - -handle_method(#'queue.purge'{queue = QueueNameBin, - nowait = NoWait}, - _, State = #ch{conn_pid = ConnPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - {ok, PurgedMessageCount} = rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> rabbit_amqqueue:purge(Q) end), - return_ok(State, NoWait, - #'queue.purge_ok'{message_count = PurgedMessageCount}); - -handle_method(#'tx.select'{}, _, #ch{confirm_enabled = true}) -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from confirm to tx mode", []); - -handle_method(#'tx.select'{}, _, State) -> - {reply, #'tx.select_ok'{}, State#ch{tx_status = in_progress}}; - -handle_method(#'tx.commit'{}, _, #ch{tx_status = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.commit'{}, _, State = #ch{uncommitted_message_q = TMQ, - uncommitted_ack_q = TAQ}) -> - State1 = new_tx(ack(TAQ, rabbit_misc:queue_fold(fun deliver_to_queues/2, - State, TMQ))), - {noreply, maybe_complete_tx(State1#ch{tx_status = committing})}; - -handle_method(#'tx.rollback'{}, _, #ch{tx_status = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.rollback'{}, _, State = #ch{unacked_message_q = UAMQ, - uncommitted_ack_q = TAQ}) -> - {reply, #'tx.rollback_ok'{}, new_tx(State#ch{unacked_message_q = - queue:join(TAQ, UAMQ)})}; - -handle_method(#'confirm.select'{}, _, #ch{tx_status = in_progress}) -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from tx to confirm mode", []); - -handle_method(#'confirm.select'{nowait = NoWait}, _, State) -> - return_ok(State#ch{confirm_enabled = true}, - NoWait, #'confirm.select_ok'{}); - -handle_method(#'channel.flow'{active = true}, _, - State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case rabbit_limiter:unblock(LimiterPid) of - ok -> LimiterPid; - stopped -> unlimit_queues(State) - end, - {reply, #'channel.flow_ok'{active = true}, - State#ch{limiter_pid = LimiterPid1}}; - -handle_method(#'channel.flow'{active = false}, _, - State = #ch{limiter_pid = LimiterPid, - consumer_mapping = Consumers}) -> - LimiterPid1 = case LimiterPid of - undefined -> start_limiter(State); - Other -> Other - end, - State1 = State#ch{limiter_pid = LimiterPid1}, - ok = rabbit_limiter:block(LimiterPid1), - case consumer_queues(Consumers) of - [] -> {reply, #'channel.flow_ok'{active = false}, State1}; - QPids -> Queues = [{QPid, erlang:monitor(process, QPid)} || - QPid <- QPids], - ok = rabbit_amqqueue:flush_all(QPids, self()), - {noreply, State1#ch{blocking = dict:from_list(Queues)}} - end; - -handle_method(_MethodRecord, _Content, _State) -> - rabbit_misc:protocol_error( - command_invalid, "unimplemented method", []). - -%%---------------------------------------------------------------------------- - -monitor_consumer(ConsumerTag, State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors, - capabilities = Capabilities}) -> - case rabbit_misc:table_lookup( - Capabilities, <<"consumer_cancel_notify">>) of - {bool, true} -> - {#amqqueue{pid = QPid} = Q, undefined} = - dict:fetch(ConsumerTag, ConsumerMapping), - MRef = erlang:monitor(process, QPid), - State#ch{consumer_mapping = - dict:store(ConsumerTag, {Q, MRef}, ConsumerMapping), - consumer_monitors = - dict:store(MRef, ConsumerTag, ConsumerMonitors)}; - _ -> - State - end. - -handle_publishing_queue_down(QPid, Reason, State = #ch{unconfirmed_qm = UQM}) -> - MsgSeqNos = case gb_trees:lookup(QPid, UQM) of - {value, MsgSet} -> gb_sets:to_list(MsgSet); - none -> [] - end, - %% We remove the MsgSeqNos from UQM before calling - %% process_confirms to prevent each MsgSeqNo being removed from - %% the set one by one which which would be inefficient - State1 = State#ch{unconfirmed_qm = gb_trees:delete_any(QPid, UQM)}, - {Nack, SendFun} = - case Reason of - Reason when Reason =:= noproc; Reason =:= noconnection; - Reason =:= normal; Reason =:= shutdown -> - {false, fun record_confirms/2}; - {shutdown, _} -> - {false, fun record_confirms/2}; - _ -> - {true, fun send_nacks/2} - end, - {MXs, State2} = process_confirms(MsgSeqNos, QPid, Nack, State1), - erase_queue_stats(QPid), - State3 = SendFun(MXs, State2), - queue_blocked(QPid, State3). - -handle_consuming_queue_down(MRef, ConsumerTag, - State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors, - writer_pid = WriterPid}) -> - ConsumerMapping1 = dict:erase(ConsumerTag, ConsumerMapping), - ConsumerMonitors1 = dict:erase(MRef, ConsumerMonitors), - Cancel = #'basic.cancel'{consumer_tag = ConsumerTag, - nowait = true}, - ok = rabbit_writer:send_command(WriterPid, Cancel), - State#ch{consumer_mapping = ConsumerMapping1, - consumer_monitors = ConsumerMonitors1}. - -binding_action(Fun, ExchangeNameBin, DestinationType, DestinationNameBin, - RoutingKey, Arguments, ReturnMethod, NoWait, - State = #ch{virtual_host = VHostPath, - conn_pid = ConnPid }) -> - %% FIXME: connection exception (!) on failure?? - %% (see rule named "failure" in spec-XML) - %% FIXME: don't allow binding to internal exchanges - - %% including the one named "" ! - {DestinationName, ActualRoutingKey} = - expand_binding(DestinationType, DestinationNameBin, RoutingKey, State), - check_write_permitted(DestinationName, State), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - [check_not_default_exchange(N) || N <- [DestinationName, ExchangeName]], - check_read_permitted(ExchangeName, State), - case Fun(#binding{source = ExchangeName, - destination = DestinationName, - key = ActualRoutingKey, - args = Arguments}, - fun (_X, Q = #amqqueue{}) -> - try rabbit_amqqueue:check_exclusive_access(Q, ConnPid) - catch exit:Reason -> {error, Reason} - end; - (_X, #exchange{}) -> - ok - end) of - {error, source_not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, destination_not_found} -> - rabbit_misc:not_found(DestinationName); - {error, source_and_destination_not_found} -> - rabbit_misc:protocol_error( - not_found, "no ~s and no ~s", [rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, binding_not_found} -> - rabbit_misc:protocol_error( - not_found, "no binding ~s between ~s and ~s", - [RoutingKey, rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, #amqp_error{} = Error} -> - rabbit_misc:protocol_error(Error); - ok -> return_ok(State, NoWait, ReturnMethod) - end. - -basic_return(#basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}, - #ch{protocol = Protocol, writer_pid = WriterPid}, Reason) -> - {_Close, ReplyCode, ReplyText} = Protocol:lookup_amqp_exception(Reason), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.return'{reply_code = ReplyCode, - reply_text = ReplyText, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - Content). - -reject(DeliveryTag, Requeue, Multiple, State = #ch{unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - rabbit_amqqueue:reject(QPid, MsgIds, Requeue, self()) - end, ok, Acked), - ok = notify_limiter(State#ch.limiter_pid, Acked), - {noreply, State#ch{unacked_message_q = Remaining}}. - -ack_record(DeliveryTag, ConsumerTag, - _MsgStruct = {_QName, QPid, MsgId, _Redelivered, _Msg}) -> - {DeliveryTag, ConsumerTag, {QPid, MsgId}}. - -collect_acks(Q, 0, true) -> - {Q, queue:new()}; -collect_acks(Q, DeliveryTag, Multiple) -> - collect_acks(queue:new(), queue:new(), Q, DeliveryTag, Multiple). - -collect_acks(ToAcc, PrefixAcc, Q, DeliveryTag, Multiple) -> - case queue:out(Q) of - {{value, UnackedMsg = {CurrentDeliveryTag, _ConsumerTag, _Msg}}, - QTail} -> - if CurrentDeliveryTag == DeliveryTag -> - {queue:in(UnackedMsg, ToAcc), queue:join(PrefixAcc, QTail)}; - Multiple -> - collect_acks(queue:in(UnackedMsg, ToAcc), PrefixAcc, - QTail, DeliveryTag, Multiple); - true -> - collect_acks(ToAcc, queue:in(UnackedMsg, PrefixAcc), - QTail, DeliveryTag, Multiple) - end; - {empty, _} -> - rabbit_misc:protocol_error( - precondition_failed, "unknown delivery tag ~w", [DeliveryTag]) - end. - -ack(Acked, State) -> - QIncs = fold_per_queue( - fun (QPid, MsgIds, L) -> - ok = rabbit_amqqueue:ack(QPid, MsgIds, self()), - [{QPid, length(MsgIds)} | L] - end, [], Acked), - maybe_incr_stats(QIncs, ack, State), - ok = notify_limiter(State#ch.limiter_pid, Acked), - State. - -new_tx(State) -> State#ch{uncommitted_message_q = queue:new(), - uncommitted_ack_q = queue:new()}. - -notify_queues(State = #ch{state = closing}) -> - {ok, State}; -notify_queues(State = #ch{consumer_mapping = Consumers}) -> - {rabbit_amqqueue:notify_down_all(consumer_queues(Consumers), self()), - State#ch{state = closing}}. - -fold_per_queue(F, Acc0, UAQ) -> - D = rabbit_misc:queue_fold( - fun ({_DTag, _CTag, {QPid, MsgId}}, D) -> - %% dict:append would avoid the lists:reverse in - %% handle_message({recover, true}, ...). However, it - %% is significantly slower when going beyond a few - %% thousand elements. - rabbit_misc:dict_cons(QPid, MsgId, D) - end, dict:new(), UAQ), - dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, - Acc0, D). - -start_limiter(State = #ch{unacked_message_q = UAMQ, start_limiter_fun = SLF}) -> - {ok, LPid} = SLF(queue:len(UAMQ)), - ok = limit_queues(LPid, State), - LPid. - -unlimit_queues(State) -> - ok = limit_queues(undefined, State), - undefined. - -limit_queues(LPid, #ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:limit_all(consumer_queues(Consumers), self(), LPid). - -consumer_queues(Consumers) -> - lists:usort([QPid || - {_Key, {#amqqueue{pid = QPid}, _MRef}} - <- dict:to_list(Consumers)]). - -%% tell the limiter about the number of acks that have been received -%% for messages delivered to subscribed consumers, but not acks for -%% messages sent in a response to a basic.get (identified by their -%% 'none' consumer tag) -notify_limiter(undefined, _Acked) -> - ok; -notify_limiter(LimiterPid, Acked) -> - case rabbit_misc:queue_fold(fun ({_, none, _}, Acc) -> Acc; - ({_, _, _}, Acc) -> Acc + 1 - end, 0, Acked) of - 0 -> ok; - Count -> rabbit_limiter:ack(LimiterPid, Count) - end. - -deliver_to_queues({Delivery = #delivery{message = Message = #basic_message{ - exchange_name = XName}, - msg_seq_no = MsgSeqNo}, - QNames}, State) -> - {RoutingRes, DeliveredQPids} = rabbit_router:deliver(QNames, Delivery), - State1 = process_routing_result(RoutingRes, DeliveredQPids, - XName, MsgSeqNo, Message, State), - maybe_incr_stats([{XName, 1} | - [{{QPid, XName}, 1} || - QPid <- DeliveredQPids]], publish, State1), - State1. - -process_routing_result(unroutable, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State, no_route), - maybe_incr_stats([{Msg#basic_message.exchange_name, 1}], - return_unroutable, State), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(not_delivered, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State, no_consumers), - maybe_incr_stats([{XName, 1}], return_not_delivered, State), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, [], XName, MsgSeqNo, _, State) -> - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, _, _, undefined, _, State) -> - State; -process_routing_result(routed, QPids, XName, MsgSeqNo, _, State) -> - #ch{unconfirmed_mq = UMQ, unconfirmed_qm = UQM} = State, - UMQ1 = gb_trees:insert(MsgSeqNo, {XName, gb_sets:from_list(QPids)}, UMQ), - SingletonSet = gb_sets:singleton(MsgSeqNo), - UQM1 = lists:foldl( - fun (QPid, UQM2) -> - maybe_monitor(QPid), - case gb_trees:lookup(QPid, UQM2) of - {value, MsgSeqNos} -> - MsgSeqNos1 = gb_sets:insert(MsgSeqNo, MsgSeqNos), - gb_trees:update(QPid, MsgSeqNos1, UQM2); - none -> - gb_trees:insert(QPid, SingletonSet, UQM2) - end - end, UQM, QPids), - State#ch{unconfirmed_mq = UMQ1, unconfirmed_qm = UQM1}. - -lock_message(true, MsgStruct, State = #ch{unacked_message_q = UAMQ}) -> - State#ch{unacked_message_q = queue:in(MsgStruct, UAMQ)}; -lock_message(false, _MsgStruct, State) -> - State. - -send_nacks([], State) -> - State; -send_nacks(MXs, State = #ch{tx_status = none}) -> - MsgSeqNos = [ MsgSeqNo || {MsgSeqNo, _} <- MXs ], - coalesce_and_send(MsgSeqNos, - fun(MsgSeqNo, Multiple) -> - #'basic.nack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State); -send_nacks(_, State) -> - maybe_complete_tx(State#ch{tx_status = failed}). - -send_confirms(State = #ch{tx_status = none, confirmed = C}) -> - C1 = lists:append(C), - MsgSeqNos = [ begin maybe_incr_stats([{ExchangeName, 1}], confirm, State), - MsgSeqNo - end || {MsgSeqNo, ExchangeName} <- C1 ], - send_confirms(MsgSeqNos, State #ch{confirmed = []}); -send_confirms(State) -> - maybe_complete_tx(State). - -send_confirms([], State) -> - State; -send_confirms([MsgSeqNo], State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, - #'basic.ack'{delivery_tag = MsgSeqNo}), - State; -send_confirms(Cs, State) -> - coalesce_and_send(Cs, fun(MsgSeqNo, Multiple) -> - #'basic.ack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State). - -coalesce_and_send(MsgSeqNos, MkMsgFun, - State = #ch{writer_pid = WriterPid, unconfirmed_mq = UMQ}) -> - SMsgSeqNos = lists:usort(MsgSeqNos), - CutOff = case gb_trees:is_empty(UMQ) of - true -> lists:last(SMsgSeqNos) + 1; - false -> {SeqNo, _XQ} = gb_trees:smallest(UMQ), SeqNo - end, - {Ms, Ss} = lists:splitwith(fun(X) -> X < CutOff end, SMsgSeqNos), - case Ms of - [] -> ok; - _ -> ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(lists:last(Ms), true)) - end, - [ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(SeqNo, false)) || SeqNo <- Ss], - State. - -maybe_complete_tx(State = #ch{tx_status = in_progress}) -> - State; -maybe_complete_tx(State = #ch{unconfirmed_mq = UMQ}) -> - case gb_trees:is_empty(UMQ) of - false -> State; - true -> complete_tx(State#ch{confirmed = []}) - end. - -complete_tx(State = #ch{tx_status = committing}) -> - ok = rabbit_writer:send_command(State#ch.writer_pid, #'tx.commit_ok'{}), - State#ch{tx_status = in_progress}; -complete_tx(State = #ch{tx_status = failed}) -> - {noreply, State1} = send_exception( - rabbit_misc:amqp_error( - precondition_failed, "partial tx completion", [], - 'tx.commit'), - State), - State1#ch{tx_status = in_progress}. - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, _) -> self(); -i(connection, #ch{conn_pid = ConnPid}) -> ConnPid; -i(number, #ch{channel = Channel}) -> Channel; -i(user, #ch{user = User}) -> User#user.username; -i(vhost, #ch{virtual_host = VHost}) -> VHost; -i(transactional, #ch{tx_status = TE}) -> TE =/= none; -i(confirm, #ch{confirm_enabled = CE}) -> CE; -i(consumer_count, #ch{consumer_mapping = ConsumerMapping}) -> - dict:size(ConsumerMapping); -i(messages_unconfirmed, #ch{unconfirmed_mq = UMQ}) -> - gb_trees:size(UMQ); -i(messages_unacknowledged, #ch{unacked_message_q = UAMQ}) -> - queue:len(UAMQ); -i(messages_uncommitted, #ch{uncommitted_message_q = TMQ}) -> - queue:len(TMQ); -i(acks_uncommitted, #ch{uncommitted_ack_q = TAQ}) -> - queue:len(TAQ); -i(prefetch_count, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:get_limit(LimiterPid); -i(client_flow_blocked, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:is_blocked(LimiterPid); -i(Item, _) -> - throw({bad_argument, Item}). - -maybe_incr_redeliver_stats(true, QPid, State) -> - maybe_incr_stats([{QPid, 1}], redeliver, State); -maybe_incr_redeliver_stats(_, _, _) -> - ok. - -maybe_incr_stats(QXIncs, Measure, #ch{stats_timer = StatsTimer}) -> - case rabbit_event:stats_level(StatsTimer) of - fine -> [incr_stats(QX, Inc, Measure) || {QX, Inc} <- QXIncs]; - _ -> ok - end. - -incr_stats({QPid, _} = QX, Inc, Measure) -> - maybe_monitor(QPid), - update_measures(queue_exchange_stats, QX, Inc, Measure); -incr_stats(QPid, Inc, Measure) when is_pid(QPid) -> - maybe_monitor(QPid), - update_measures(queue_stats, QPid, Inc, Measure); -incr_stats(X, Inc, Measure) -> - update_measures(exchange_stats, X, Inc, Measure). - -maybe_monitor(QPid) -> - case get({monitoring, QPid}) of - undefined -> erlang:monitor(process, QPid), - put({monitoring, QPid}, true); - _ -> ok - end. - -update_measures(Type, QX, Inc, Measure) -> - Measures = case get({Type, QX}) of - undefined -> []; - D -> D - end, - Cur = case orddict:find(Measure, Measures) of - error -> 0; - {ok, C} -> C - end, - put({Type, QX}, - orddict:store(Measure, Cur + Inc, Measures)). - -internal_emit_stats(State) -> - internal_emit_stats(State, []). - -internal_emit_stats(State = #ch{stats_timer = StatsTimer}, Extra) -> - CoarseStats = infos(?STATISTICS_KEYS, State), - case rabbit_event:stats_level(StatsTimer) of - coarse -> - rabbit_event:notify(channel_stats, Extra ++ CoarseStats); - fine -> - FineStats = - [{channel_queue_stats, - [{QPid, Stats} || {{queue_stats, QPid}, Stats} <- get()]}, - {channel_exchange_stats, - [{X, Stats} || {{exchange_stats, X}, Stats} <- get()]}, - {channel_queue_exchange_stats, - [{QX, Stats} || - {{queue_exchange_stats, QX}, Stats} <- get()]}], - rabbit_event:notify(channel_stats, - Extra ++ CoarseStats ++ FineStats) - end. - -erase_queue_stats(QPid) -> - erase({monitoring, QPid}), - erase({queue_stats, QPid}), - [erase({queue_exchange_stats, QX}) || - {{queue_exchange_stats, QX = {QPid0, _}}, _} <- get(), QPid =:= QPid0]. diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl deleted file mode 100644 index 65ccca02..00000000 --- a/src/rabbit_channel_sup.erl +++ /dev/null @@ -1,93 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup). - --behaviour(supervisor2). - --export([start_link/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([start_link_args/0]). - --type(start_link_args() :: - {'tcp', rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), pid(), rabbit_types:protocol(), rabbit_types:user(), - rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()} | - {'direct', rabbit_channel:channel_number(), pid(), - rabbit_types:protocol(), rabbit_types:user(), rabbit_types:vhost(), - rabbit_framing:amqp_table(), pid()}). - --spec(start_link/1 :: (start_link_args()) -> {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link({tcp, Sock, Channel, FrameMax, ReaderPid, Protocol, User, VHost, - Capabilities, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, WriterPid} = - supervisor2:start_child( - SupPid, - {writer, {rabbit_writer, start_link, - [Sock, Channel, FrameMax, Protocol, ReaderPid]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_writer]}), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ReaderPid, WriterPid, ReaderPid, Protocol, - User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, AState} = rabbit_command_assembler:init(Protocol), - {ok, SupPid, {ChannelPid, AState}}; -start_link({direct, Channel, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ClientChannelPid, ClientChannelPid, ConnPid, - Protocol, User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, SupPid, {ChannelPid, none}}. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. - -start_limiter_fun(SupPid) -> - fun (UnackedCount) -> - Me = self(), - {ok, _Pid} = - supervisor2:start_child( - SupPid, - {limiter, {rabbit_limiter, start_link, [Me, UnackedCount]}, - transient, ?MAX_WAIT, worker, [rabbit_limiter]}) - end. diff --git a/src/rabbit_channel_sup_sup.erl b/src/rabbit_channel_sup_sup.erl deleted file mode 100644 index e2561c80..00000000 --- a/src/rabbit_channel_sup_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup_sup). - --behaviour(supervisor2). - --export([start_link/0, start_channel/2]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(start_channel/2 :: (pid(), rabbit_channel_sup:start_link_args()) -> - {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor2:start_link(?MODULE, []). - -start_channel(Pid, Args) -> - supervisor2:start_child(Pid, [Args]). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{channel_sup, {rabbit_channel_sup, start_link, []}, - temporary, infinity, supervisor, [rabbit_channel_sup]}]}}. diff --git a/src/rabbit_client_sup.erl b/src/rabbit_client_sup.erl deleted file mode 100644 index 15e92542..00000000 --- a/src/rabbit_client_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_client_sup). - --behaviour(supervisor2). - --export([start_link/1, start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (mfa()) -> - rabbit_types:ok_pid_or_error()). --spec(start_link/2 :: ({'local', atom()}, mfa()) -> - rabbit_types:ok_pid_or_error()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Callback) -> - supervisor2:start_link(?MODULE, Callback). - -start_link(SupName, Callback) -> - supervisor2:start_link(SupName, ?MODULE, Callback). - -init({M,F,A}) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{client, {M,F,A}, temporary, infinity, supervisor, [M]}]}}. diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl deleted file mode 100644 index 07036ce8..00000000 --- a/src/rabbit_command_assembler.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_command_assembler). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([analyze_frame/3, init/1, process/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame_type() :: ?FRAME_METHOD | ?FRAME_HEADER | ?FRAME_BODY | - ?FRAME_OOB_METHOD | ?FRAME_OOB_HEADER | ?FRAME_OOB_BODY | - ?FRAME_TRACE | ?FRAME_HEARTBEAT). --type(protocol() :: rabbit_framing:protocol()). --type(method() :: rabbit_framing:amqp_method_record()). --type(class_id() :: rabbit_framing:amqp_class_id()). --type(weight() :: non_neg_integer()). --type(body_size() :: non_neg_integer()). --type(content() :: rabbit_types:undecoded_content()). - --type(frame() :: - {'method', rabbit_framing:amqp_method_name(), binary()} | - {'content_header', class_id(), weight(), body_size(), binary()} | - {'content_body', binary()}). - --type(state() :: - {'method', protocol()} | - {'content_header', method(), class_id(), protocol()} | - {'content_body', method(), body_size(), class_id(), protocol()}). - --spec(analyze_frame/3 :: (frame_type(), binary(), protocol()) -> - frame() | 'heartbeat' | 'error'). - --spec(init/1 :: (protocol()) -> {ok, state()}). --spec(process/2 :: (frame(), state()) -> - {ok, state()} | - {ok, method(), state()} | - {ok, method(), content(), state()} | - {error, rabbit_types:amqp_error()}). - --endif. - -%%-------------------------------------------------------------------- - -analyze_frame(?FRAME_METHOD, - <>, - Protocol) -> - MethodName = Protocol:lookup_method_name({ClassId, MethodId}), - {method, MethodName, MethodFields}; -analyze_frame(?FRAME_HEADER, - <>, - _Protocol) -> - {content_header, ClassId, Weight, BodySize, Properties}; -analyze_frame(?FRAME_BODY, Body, _Protocol) -> - {content_body, Body}; -analyze_frame(?FRAME_HEARTBEAT, <<>>, _Protocol) -> - heartbeat; -analyze_frame(_Type, _Body, _Protocol) -> - error. - -init(Protocol) -> {ok, {method, Protocol}}. - -process({method, MethodName, FieldsBin}, {method, Protocol}) -> - try - Method = Protocol:decode_method_fields(MethodName, FieldsBin), - case Protocol:method_has_content(MethodName) of - true -> {ClassId, _MethodId} = Protocol:method_id(MethodName), - {ok, {content_header, Method, ClassId, Protocol}}; - false -> {ok, Method, {method, Protocol}} - end - catch exit:#amqp_error{} = Reason -> {error, Reason} - end; -process(_Frame, {method, _Protocol}) -> - unexpected_frame("expected method frame, " - "got non method frame instead", [], none); -process({content_header, ClassId, 0, 0, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, Method, Content, {method, Protocol}}; -process({content_header, ClassId, 0, BodySize, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, {content_body, Method, BodySize, Content, Protocol}}; -process({content_header, HeaderClassId, 0, _BodySize, _PropertiesBin}, - {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got one for class ~w instead", - [ClassId, HeaderClassId], Method); -process(_Frame, {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got non content header frame instead", [ClassId], Method); -process({content_body, FragmentBin}, - {content_body, Method, RemainingSize, - Content = #content{payload_fragments_rev = Fragments}, Protocol}) -> - NewContent = Content#content{ - payload_fragments_rev = [FragmentBin | Fragments]}, - case RemainingSize - size(FragmentBin) of - 0 -> {ok, Method, NewContent, {method, Protocol}}; - Sz -> {ok, {content_body, Method, Sz, NewContent, Protocol}} - end; -process(_Frame, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("expected content body, " - "got non content body frame instead", [], Method). - -%%-------------------------------------------------------------------- - -empty_content(ClassId, PropertiesBin, Protocol) -> - #content{class_id = ClassId, - properties = none, - properties_bin = PropertiesBin, - protocol = Protocol, - payload_fragments_rev = []}. - -unexpected_frame(Format, Params, Method) when is_atom(Method) -> - {error, rabbit_misc:amqp_error(unexpected_frame, Format, Params, Method)}; -unexpected_frame(Format, Params, Method) -> - unexpected_frame(Format, Params, rabbit_misc:method_record_type(Method)). diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl deleted file mode 100644 index 302938a2..00000000 --- a/src/rabbit_connection_sup.erl +++ /dev/null @@ -1,61 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_connection_sup). - --behaviour(supervisor2). - --export([start_link/0]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid(), pid()}). - --endif. - -%%-------------------------------------------------------------------------- - -start_link() -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, Collector} = - supervisor2:start_child( - SupPid, - {collector, {rabbit_queue_collector, start_link, []}, - intrinsic, ?MAX_WAIT, worker, [rabbit_queue_collector]}), - {ok, ChannelSupSupPid} = - supervisor2:start_child( - SupPid, - {channel_sup_sup, {rabbit_channel_sup_sup, start_link, []}, - intrinsic, infinity, supervisor, [rabbit_channel_sup_sup]}), - {ok, ReaderPid} = - supervisor2:start_child( - SupPid, - {reader, {rabbit_reader, start_link, - [ChannelSupSupPid, Collector, - rabbit_heartbeat:start_heartbeat_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_reader]}), - {ok, SupPid, ReaderPid}. - -%%-------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl deleted file mode 100644 index 6eb1aaba..00000000 --- a/src/rabbit_control.erl +++ /dev/null @@ -1,476 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_control). --include("rabbit.hrl"). - --export([start/0, stop/0, action/5, diagnostics/1]). - --define(RPC_TIMEOUT, infinity). --define(WAIT_FOR_VM_ATTEMPTS, 5). - --define(QUIET_OPT, "-q"). --define(NODE_OPT, "-n"). --define(VHOST_OPT, "-p"). - --define(GLOBAL_QUERIES, - [{"Connections", rabbit_networking, connection_info_all, - connection_info_keys}, - {"Channels", rabbit_channel, info_all, info_keys}]). - --define(VHOST_QUERIES, - [{"Queues", rabbit_amqqueue, info_all, info_keys}, - {"Exchanges", rabbit_exchange, info_all, info_keys}, - {"Bindings", rabbit_binding, info_all, info_keys}, - {"Consumers", rabbit_amqqueue, consumers_all, consumer_info_keys}, - {"Permissions", rabbit_auth_backend_internal, list_vhost_permissions, - vhost_perms_info_keys}]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(action/5 :: - (atom(), node(), [string()], [{string(), any()}], - fun ((string(), [any()]) -> 'ok')) - -> 'ok'). --spec(diagnostics/1 :: (node()) -> [{string(), [any()]}]). --spec(usage/0 :: () -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), - {[Command0 | Args], Opts} = - case rabbit_misc:get_options([{flag, ?QUIET_OPT}, - {option, ?NODE_OPT, NodeStr}, - {option, ?VHOST_OPT, "/"}], - init:get_plain_arguments()) of - {[], _Opts} -> usage(); - CmdArgsAndOpts -> CmdArgsAndOpts - end, - Opts1 = [case K of - ?NODE_OPT -> {?NODE_OPT, rabbit_misc:makenode(V)}; - _ -> {K, V} - end || {K, V} <- Opts], - Command = list_to_atom(Command0), - Quiet = proplists:get_bool(?QUIET_OPT, Opts1), - Node = proplists:get_value(?NODE_OPT, Opts1), - Inform = case Quiet of - true -> fun (_Format, _Args1) -> ok end; - false -> fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end - end, - %% The reason we don't use a try/catch here is that rpc:call turns - %% thrown errors into normal return values - case catch action(Command, Node, Args, Opts, Inform) of - ok -> - case Quiet of - true -> ok; - false -> io:format("...done.~n") - end, - quit(0); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error("invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]), - usage(); - {error, Reason} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, {'EXIT', Reason}} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, Reason} -> - print_error("unable to connect to node ~w: ~w", [Node, Reason]), - print_badrpc_diagnostics(Node), - quit(2); - Other -> - print_error("~p", [Other]), - quit(2) - end. - -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - -print_report(Node, {Descr, Module, InfoFun, KeysFun}) -> - io:format("~s:~n", [Descr]), - print_report0(Node, {Module, InfoFun, KeysFun}, []). - -print_report(Node, {Descr, Module, InfoFun, KeysFun}, VHostArg) -> - io:format("~s on ~s:~n", [Descr, VHostArg]), - print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg). - -print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> - case Results = rpc_call(Node, Module, InfoFun, VHostArg) of - [_|_] -> InfoItems = rpc_call(Node, Module, KeysFun, []), - display_row([atom_to_list(I) || I <- InfoItems]), - display_info_list(Results, InfoItems); - _ -> ok - end, - io:nl(). - -print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - -print_badrpc_diagnostics(Node) -> - [fmt_stderr(Fmt, Args) || {Fmt, Args} <- diagnostics(Node)]. - -diagnostics(Node) -> - {_NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - [{"diagnostics:", []}, - case net_adm:names(NodeHost) of - {error, EpmdReason} -> - {"- unable to connect to epmd on ~s: ~w", - [NodeHost, EpmdReason]}; - {ok, NamePorts} -> - {"- nodes and their ports on ~s: ~p", - [NodeHost, [{list_to_atom(Name), Port} || - {Name, Port} <- NamePorts]]} - end, - {"- current node: ~w", [node()]}, - case init:get_argument(home) of - {ok, [[Home]]} -> {"- current node home dir: ~s", [Home]}; - Other -> {"- no current node home dir: ~p", [Other]} - end, - {"- current node cookie hash: ~s", [rabbit_misc:cookie_hash()]}]. - -stop() -> - ok. - -usage() -> - io:format("~s", [rabbit_ctl_usage:usage()]), - quit(1). - -%%---------------------------------------------------------------------------- - -action(stop, Node, [], _Opts, Inform) -> - Inform("Stopping and halting node ~p", [Node]), - call(Node, {rabbit, stop_and_halt, []}); - -action(stop_app, Node, [], _Opts, Inform) -> - Inform("Stopping node ~p", [Node]), - call(Node, {rabbit, stop, []}); - -action(start_app, Node, [], _Opts, Inform) -> - Inform("Starting node ~p", [Node]), - call(Node, {rabbit, start, []}); - -action(reset, Node, [], _Opts, Inform) -> - Inform("Resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, reset, []}); - -action(force_reset, Node, [], _Opts, Inform) -> - Inform("Forcefully resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, force_reset, []}); - -action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); - -action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); - -action(wait, Node, [], _Opts, Inform) -> - Inform("Waiting for ~p", [Node]), - wait_for_application(Node, ?WAIT_FOR_VM_ATTEMPTS); - -action(status, Node, [], _Opts, Inform) -> - Inform("Status of node ~p", [Node]), - display_call_result(Node, {rabbit, status, []}); - -action(cluster_status, Node, [], _Opts, Inform) -> - Inform("Cluster status of node ~p", [Node]), - display_call_result(Node, {rabbit_mnesia, status, []}); - -action(environment, Node, _App, _Opts, Inform) -> - Inform("Application environment of node ~p", [Node]), - display_call_result(Node, {rabbit, environment, []}); - -action(rotate_logs, Node, [], _Opts, Inform) -> - Inform("Reopening logs for node ~p", [Node]), - call(Node, {rabbit, rotate_logs, [""]}); -action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), - call(Node, {rabbit, rotate_logs, Args}); - -action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> - Inform("Closing connection ~s", [PidStr]), - rpc_call(Node, rabbit_networking, close_connection, - [rabbit_misc:string_to_pid(PidStr), Explanation]); - -action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> - Inform("Creating user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, add_user, Args}); - -action(delete_user, Node, Args = [_Username], _Opts, Inform) -> - Inform("Deleting user ~p", Args), - call(Node, {rabbit_auth_backend_internal, delete_user, Args}); - -action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> - Inform("Changing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, change_password, Args}); - -action(clear_password, Node, Args = [Username], _Opts, Inform) -> - Inform("Clearing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_password, Args}); - -action(set_user_tags, Node, [Username | TagsStr], _Opts, Inform) -> - Tags = [list_to_atom(T) || T <- TagsStr], - Inform("Setting tags for user ~p to ~p", [Username, Tags]), - rpc_call(Node, rabbit_auth_backend_internal, set_tags, - [list_to_binary(Username), Tags]); - -action(list_users, Node, [], _Opts, Inform) -> - Inform("Listing users", []), - display_info_list( - call(Node, {rabbit_auth_backend_internal, list_users, []}), - rabbit_auth_backend_internal:user_info_keys()); - -action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Creating vhost ~p", Args), - call(Node, {rabbit_vhost, add, Args}); - -action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Deleting vhost ~p", Args), - call(Node, {rabbit_vhost, delete, Args}); - -action(list_vhosts, Node, Args, _Opts, Inform) -> - Inform("Listing vhosts", []), - ArgAtoms = default_if_empty(Args, [name]), - display_info_list(call(Node, {rabbit_vhost, info_all, []}), ArgAtoms); - -action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> - Inform("Listing permissions for user ~p", Args), - display_info_list(call(Node, {rabbit_auth_backend_internal, - list_user_permissions, Args}), - rabbit_auth_backend_internal:user_perms_info_keys()); - -action(list_queues, Node, Args, Opts, Inform) -> - Inform("Listing queues", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, messages]), - display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_exchanges, Node, Args, Opts, Inform) -> - Inform("Listing exchanges", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, type]), - display_info_list(rpc_call(Node, rabbit_exchange, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_bindings, Node, Args, Opts, Inform) -> - Inform("Listing bindings", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]), - display_info_list(rpc_call(Node, rabbit_binding, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_connections, Node, Args, _Opts, Inform) -> - Inform("Listing connections", []), - ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), - display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, - [ArgAtoms]), - ArgAtoms); - -action(list_channels, Node, Args, _Opts, Inform) -> - Inform("Listing channels", []), - ArgAtoms = default_if_empty(Args, [pid, user, consumer_count, - messages_unacknowledged]), - display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); - -action(list_consumers, Node, _Args, Opts, Inform) -> - Inform("Listing consumers", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - display_info_list(rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg]), - rabbit_amqqueue:consumer_info_keys()); - -action(trace_on, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Starting tracing for vhost ~p", [VHost]), - rpc_call(Node, rabbit_trace, start, [list_to_binary(VHost)]); - -action(trace_off, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Stopping tracing for vhost ~p", [VHost]), - rpc_call(Node, rabbit_trace, stop, [list_to_binary(VHost)]); - -action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, [Username], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, clear_permissions, - [Username, VHost]}); - -action(list_permissions, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Listing permissions in vhost ~p", [VHost]), - display_info_list(call(Node, {rabbit_auth_backend_internal, - list_vhost_permissions, [VHost]}), - rabbit_auth_backend_internal:vhost_perms_info_keys()); - -action(report, Node, _Args, _Opts, Inform) -> - io:format("Reporting server status on ~p~n~n", [erlang:universaltime()]), - [begin ok = action(Action, N, [], [], Inform), io:nl() end || - N <- unsafe_rpc(Node, rabbit_mnesia, running_clustered_nodes, []), - Action <- [status, cluster_status, environment]], - VHosts = unsafe_rpc(Node, rabbit_vhost, list, []), - [print_report(Node, Q) || Q <- ?GLOBAL_QUERIES], - [print_report(Node, Q, [V]) || Q <- ?VHOST_QUERIES, V <- VHosts], - io:format("End of server status report~n"), - ok. - -%%---------------------------------------------------------------------------- - -wait_for_application(Node, Attempts) -> - case rpc_call(Node, application, which_applications, [infinity]) of - {badrpc, _} = E -> case Attempts of - 0 -> E; - _ -> wait_for_application0(Node, Attempts - 1) - end; - Apps -> case proplists:is_defined(rabbit, Apps) of - %% We've seen the node up; if it goes down - %% die immediately. - true -> ok; - false -> wait_for_application0(Node, 0) - end - end. - -wait_for_application0(Node, Attempts) -> - timer:sleep(1000), - wait_for_application(Node, Attempts). - -default_if_empty(List, Default) when is_list(List) -> - if List == [] -> Default; - true -> [list_to_atom(X) || X <- List] - end. - -display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach( - fun (Result) -> display_row( - [format_info_item(proplists:get_value(X, Result)) || - X <- InfoItemKeys]) - end, Results), - ok; -display_info_list(Other, _) -> - Other. - -display_row(Row) -> - io:fwrite(string:join(Row, "\t")), - io:nl(). - --define(IS_U8(X), (X >= 0 andalso X =< 255)). --define(IS_U16(X), (X >= 0 andalso X =< 65535)). - -format_info_item(#resource{name = Name}) -> - escape(Name); -format_info_item({N1, N2, N3, N4} = Value) when - ?IS_U8(N1), ?IS_U8(N2), ?IS_U8(N3), ?IS_U8(N4) -> - rabbit_misc:ntoa(Value); -format_info_item({K1, K2, K3, K4, K5, K6, K7, K8} = Value) when - ?IS_U16(K1), ?IS_U16(K2), ?IS_U16(K3), ?IS_U16(K4), - ?IS_U16(K5), ?IS_U16(K6), ?IS_U16(K7), ?IS_U16(K8) -> - rabbit_misc:ntoa(Value); -format_info_item(Value) when is_pid(Value) -> - rabbit_misc:pid_to_string(Value); -format_info_item(Value) when is_binary(Value) -> - escape(Value); -format_info_item(Value) when is_atom(Value) -> - escape(atom_to_list(Value)); -format_info_item([{TableEntryKey, TableEntryType, _TableEntryValue} | _] = - Value) when is_binary(TableEntryKey) andalso - is_atom(TableEntryType) -> - io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); -format_info_item([T | _] = Value) - when is_tuple(T) orelse is_pid(T) orelse is_binary(T) orelse is_atom(T) orelse - is_list(T) -> - "[" ++ - lists:nthtail(2, lists:append( - [", " ++ format_info_item(E) || E <- Value])) ++ "]"; -format_info_item(Value) -> - io_lib:format("~w", [Value]). - -display_call_result(Node, MFA) -> - case call(Node, MFA) of - {badrpc, _} = Res -> throw(Res); - Res -> io:format("~p~n", [Res]), - ok - end. - -unsafe_rpc(Node, Mod, Fun, Args) -> - case rpc_call(Node, Mod, Fun, Args) of - {badrpc, _} = Res -> throw(Res); - Normal -> Normal - end. - -call(Node, {Mod, Fun, Args}) -> - rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). - -rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). - -%% escape does C-style backslash escaping of non-printable ASCII -%% characters. We don't escape characters above 127, since they may -%% form part of UTF-8 strings. - -escape(Atom) when is_atom(Atom) -> escape(atom_to_list(Atom)); -escape(Bin) when is_binary(Bin) -> escape(binary_to_list(Bin)); -escape(L) when is_list(L) -> escape_char(lists:reverse(L), []). - -escape_char([$\\ | T], Acc) -> - escape_char(T, [$\\, $\\ | Acc]); -escape_char([X | T], Acc) when X >= 32, X /= 127 -> - escape_char(T, [X | Acc]); -escape_char([X | T], Acc) -> - escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), - $0 + (X band 7) | Acc]); -escape_char([], Acc) -> - Acc. - -prettify_amqp_table(Table) -> - [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. - -prettify_typed_amqp_value(longstr, Value) -> escape(Value); -prettify_typed_amqp_value(table, Value) -> prettify_amqp_table(Value); -prettify_typed_amqp_value(array, Value) -> [prettify_typed_amqp_value(T, V) || - {T, V} <- Value]; -prettify_typed_amqp_value(_Type, Value) -> Value. - -%% the slower shutdown on windows required to flush stdout -quit(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status) - end. diff --git a/src/rabbit_direct.erl b/src/rabbit_direct.erl deleted file mode 100644 index 7ff534ee..00000000 --- a/src/rabbit_direct.erl +++ /dev/null @@ -1,86 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_direct). - --export([boot/0, connect/4, start_channel/8, disconnect/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(boot/0 :: () -> 'ok'). --spec(connect/4 :: (rabbit_types:username(), rabbit_types:vhost(), - rabbit_types:protocol(), rabbit_event:event_props()) -> - {'ok', {rabbit_types:user(), - rabbit_framing:amqp_table()}}). --spec(start_channel/8 :: - (rabbit_channel:channel_number(), pid(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()) -> {'ok', pid()}). - --spec(disconnect/1 :: (rabbit_event:event_props()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - {ok, _} = - supervisor2:start_child( - rabbit_sup, - {rabbit_direct_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_direct_client_sup}, - {rabbit_channel_sup, start_link, []}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%%---------------------------------------------------------------------------- - -connect(Username, VHost, Protocol, Infos) -> - case lists:keymember(rabbit, 1, application:which_applications()) of - true -> - case rabbit_access_control:check_user_login(Username, []) of - {ok, User} -> - try rabbit_access_control:check_vhost_access(User, VHost) of - ok -> rabbit_event:notify(connection_created, Infos), - {ok, {User, - rabbit_reader:server_properties(Protocol)}} - catch - exit:#amqp_error{name = access_refused} -> - {error, access_refused} - end; - {refused, _Msg, _Args} -> - {error, auth_failure} - end; - false -> - {error, broker_not_found_on_node} - end. - -start_channel(Number, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector) -> - {ok, _, {ChannelPid, _}} = - supervisor2:start_child( - rabbit_direct_client_sup, - [{direct, Number, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector}]), - {ok, ChannelPid}. - -disconnect(Infos) -> - rabbit_event:notify(connection_closed, Infos). diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl deleted file mode 100644 index 93aad9e3..00000000 --- a/src/rabbit_error_logger.erl +++ /dev/null @@ -1,78 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(LOG_EXCH_NAME, <<"amq.rabbitmq.log">>). - --behaviour(gen_event). - --export([boot/0]). - --export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, - handle_info/2]). - -boot() -> - {ok, DefaultVHost} = application:get_env(default_vhost), - ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). - -init([DefaultVHost]) -> - #exchange{} = rabbit_exchange:declare( - rabbit_misc:r(DefaultVHost, exchange, ?LOG_EXCH_NAME), - topic, true, false, false, []), - {ok, #resource{virtual_host = DefaultVHost, - kind = exchange, - name = ?LOG_EXCH_NAME}}. - -terminate(_Arg, _State) -> - terminated_ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State) -> - ok = publish(Kind, Format, Data, State), - {ok, State}; -handle_event(_Event, State) -> - {ok, State}. - -handle_info(_Info, State) -> - {ok, State}. - -publish(error, Format, Data, State) -> - publish1(<<"error">>, Format, Data, State); -publish(warning_msg, Format, Data, State) -> - publish1(<<"warning">>, Format, Data, State); -publish(info_msg, Format, Data, State) -> - publish1(<<"info">>, Format, Data, State); -publish(_Other, _Format, _Data, _State) -> - ok. - -publish1(RoutingKey, Format, Data, LogExch) -> - %% 0-9-1 says the timestamp is a "64 bit POSIX timestamp". That's - %% second resolution, not millisecond. - Timestamp = rabbit_misc:now_ms() div 1000, - {ok, _RoutingRes, _DeliveredQPids} = - rabbit_basic:publish(LogExch, RoutingKey, false, false, - #'P_basic'{content_type = <<"text/plain">>, - timestamp = Timestamp}, - list_to_binary(io_lib:format(Format, Data))), - ok. diff --git a/src/rabbit_error_logger_file_h.erl b/src/rabbit_error_logger_file_h.erl deleted file mode 100644 index 7e9ebc4f..00000000 --- a/src/rabbit_error_logger_file_h.erl +++ /dev/null @@ -1,68 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_error_logger_file_h is a wrapper around the error_logger_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers in log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without performing -%% log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(File). - -handle_event(Event, State) -> - error_logger_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - error_logger_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - error_logger_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - error_logger_file_h:terminate(Reason, State). - -code_change(OldVsn, State, Extra) -> - error_logger_file_h:code_change(OldVsn, State, Extra). diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl deleted file mode 100644 index 468f9293..00000000 --- a/src/rabbit_event.erl +++ /dev/null @@ -1,139 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_event). - --include("rabbit.hrl"). - --export([start_link/0]). --export([init_stats_timer/0, ensure_stats_timer/2, stop_stats_timer/1]). --export([reset_stats_timer/1]). --export([stats_level/1, if_enabled/2]). --export([notify/2, notify_if/3]). - -%%---------------------------------------------------------------------------- - --record(state, {level, interval, timer}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([event_type/0, event_props/0, event_timestamp/0, event/0]). - --type(event_type() :: atom()). --type(event_props() :: term()). --type(event_timestamp() :: - {non_neg_integer(), non_neg_integer(), non_neg_integer()}). - --type(event() :: #event { - type :: event_type(), - props :: event_props(), - timestamp :: event_timestamp() - }). - --type(level() :: 'none' | 'coarse' | 'fine'). - --opaque(state() :: #state { - level :: level(), - interval :: integer(), - timer :: atom() - }). - --type(timer_fun() :: fun (() -> 'ok')). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(init_stats_timer/0 :: () -> state()). --spec(ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). --spec(stop_stats_timer/1 :: (state()) -> state()). --spec(reset_stats_timer/1 :: (state()) -> state()). --spec(stats_level/1 :: (state()) -> level()). --spec(if_enabled/2 :: (state(), timer_fun()) -> 'ok'). --spec(notify/2 :: (event_type(), event_props()) -> 'ok'). --spec(notify_if/3 :: (boolean(), event_type(), event_props()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_event:start_link({local, ?MODULE}). - -%% The idea is, for each stat-emitting object: -%% -%% On startup: -%% Timer = init_stats_timer() -%% notify(created event) -%% if_enabled(internal_emit_stats) - so we immediately send something -%% -%% On wakeup: -%% ensure_stats_timer(Timer, emit_stats) -%% (Note we can't emit stats immediately, the timer may have fired 1ms ago.) -%% -%% emit_stats: -%% if_enabled(internal_emit_stats) -%% reset_stats_timer(Timer) - just bookkeeping -%% -%% Pre-hibernation: -%% if_enabled(internal_emit_stats) -%% stop_stats_timer(Timer) -%% -%% internal_emit_stats: -%% notify(stats) - -init_stats_timer() -> - {ok, StatsLevel} = application:get_env(rabbit, collect_statistics), - {ok, Interval} = application:get_env(rabbit, collect_statistics_interval), - #state{level = StatsLevel, interval = Interval, timer = undefined}. - -ensure_stats_timer(State = #state{level = none}, _Fun) -> - State; -ensure_stats_timer(State = #state{interval = Interval, - timer = undefined}, Fun) -> - {ok, TRef} = timer:apply_after(Interval, erlang, apply, [Fun, []]), - State#state{timer = TRef}; -ensure_stats_timer(State, _Fun) -> - State. - -stop_stats_timer(State = #state{level = none}) -> - State; -stop_stats_timer(State = #state{timer = undefined}) -> - State; -stop_stats_timer(State = #state{timer = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#state{timer = undefined}. - -reset_stats_timer(State) -> - State#state{timer = undefined}. - -stats_level(#state{level = Level}) -> - Level. - -if_enabled(#state{level = none}, _Fun) -> - ok; -if_enabled(_State, Fun) -> - Fun(), - ok. - -notify_if(true, Type, Props) -> notify(Type, Props); -notify_if(false, _Type, _Props) -> ok. - -notify(Type, Props) -> - %% TODO: switch to os:timestamp() when we drop support for - %% Erlang/OTP < R13B01 - gen_event:notify(rabbit_event, #event{type = Type, - props = Props, - timestamp = now()}). diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl deleted file mode 100644 index afa48355..00000000 --- a/src/rabbit_exchange.erl +++ /dev/null @@ -1,359 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([recover/0, callback/3, declare/6, - assert_equivalence/6, assert_args_equivalence/2, check_type/1, - lookup/1, lookup_or_die/1, list/1, update_scratch/2, - info_keys/0, info/1, info/2, info_all/1, info_all/2, - route/2, delete/2]). -%% these must be run inside a mnesia tx --export([maybe_auto_delete/1, serial/1, peek_serial/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, type/0]). - --type(name() :: rabbit_types:r('exchange')). --type(type() :: atom()). --type(fun_name() :: atom()). - --spec(recover/0 :: () -> [name()]). --spec(callback/3:: (rabbit_types:exchange(), fun_name(), [any()]) -> 'ok'). --spec(declare/6 :: - (name(), type(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> rabbit_types:exchange()). --spec(check_type/1 :: - (binary()) -> atom() | rabbit_types:connection_exit()). --spec(assert_equivalence/6 :: - (rabbit_types:exchange(), atom(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:exchange()) | - rabbit_types:error('not_found')). --spec(lookup_or_die/1 :: - (name()) -> rabbit_types:exchange() | - rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:exchange()]). --spec(update_scratch/2 :: (name(), fun((any()) -> any())) -> 'ok'). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:exchange()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:exchange(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(route/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> [rabbit_amqqueue:name()]). --spec(delete/2 :: - (name(), boolean())-> 'ok' | - rabbit_types:error('not_found') | - rabbit_types:error('in_use')). --spec(maybe_auto_delete/1:: - (rabbit_types:exchange()) - -> 'not_deleted' | {'deleted', rabbit_binding:deletions()}). --spec(serial/1 :: (rabbit_types:exchange()) -> 'none' | pos_integer()). --spec(peek_serial/1 :: (name()) -> pos_integer() | 'undefined'). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [name, type, durable, auto_delete, internal, arguments]). - -recover() -> - Xs = rabbit_misc:table_filter( - fun (#exchange{name = XName}) -> - mnesia:read({rabbit_exchange, XName}) =:= [] - end, - fun (X, Tx) -> - case Tx of - true -> store(X); - false -> ok - end, - rabbit_exchange:callback(X, create, [map_create_tx(Tx), X]) - end, - rabbit_durable_exchange), - [XName || #exchange{name = XName} <- Xs]. - -callback(#exchange{type = XType}, Fun, Args) -> - apply(type_to_module(XType), Fun, Args). - -declare(XName, Type, Durable, AutoDelete, Internal, Args) -> - X = #exchange{name = XName, - type = Type, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - arguments = Args}, - XT = type_to_module(Type), - %% We want to upset things if it isn't ok - ok = XT:validate(X), - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_exchange, XName}) of - [] -> - store(X), - ok = case Durable of - true -> mnesia:write(rabbit_durable_exchange, - X, write); - false -> ok - end, - {new, X}; - [ExistingX] -> - {existing, ExistingX} - end - end, - fun ({new, Exchange}, Tx) -> - ok = XT:create(map_create_tx(Tx), Exchange), - rabbit_event:notify_if(not Tx, exchange_created, info(Exchange)), - Exchange; - ({existing, Exchange}, _Tx) -> - Exchange; - (Err, _Tx) -> - Err - end). - -map_create_tx(true) -> transaction; -map_create_tx(false) -> none. - -store(X = #exchange{name = Name, type = Type}) -> - ok = mnesia:write(rabbit_exchange, X, write), - case (type_to_module(Type)):serialise_events() of - true -> S = #exchange_serial{name = Name, next = 1}, - ok = mnesia:write(rabbit_exchange_serial, S, write); - false -> ok - end. - -%% Used with binaries sent over the wire; the type may not exist. -check_type(TypeBin) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown exchange type '~s'", [TypeBin]); - T -> - case rabbit_registry:lookup_module(exchange, T) of - {error, not_found} -> rabbit_misc:protocol_error( - command_invalid, - "invalid exchange type '~s'", [T]); - {ok, _Module} -> T - end - end. - -assert_equivalence(X = #exchange{ durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - type = Type}, - Type, Durable, AutoDelete, Internal, RequiredArgs) -> - (type_to_module(Type)):assert_args_equivalence(X, RequiredArgs); -assert_equivalence(#exchange{ name = Name }, - _Type, _Durable, _Internal, _AutoDelete, _Args) -> - rabbit_misc:protocol_error( - precondition_failed, - "cannot redeclare ~s with different type, durable, " - "internal or autodelete value", - [rabbit_misc:rs(Name)]). - -assert_args_equivalence(#exchange{ name = Name, arguments = Args }, - RequiredArgs) -> - %% The spec says "Arguments are compared for semantic - %% equivalence". The only arg we care about is - %% "alternate-exchange". - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, Name, - [<<"alternate-exchange">>]). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_exchange, Name}). - -lookup_or_die(Name) -> - case lookup(Name) of - {ok, X} -> X; - {error, not_found} -> rabbit_misc:not_found(Name) - end. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_exchange, - #exchange{name = rabbit_misc:r(VHostPath, exchange), _ = '_'}). - -update_scratch(Name, Fun) -> - rabbit_misc:execute_mnesia_transaction( - fun() -> - case mnesia:wread({rabbit_exchange, Name}) of - [X = #exchange{durable = Durable, scratch = Scratch}] -> - X1 = X#exchange{scratch = Fun(Scratch)}, - ok = mnesia:write(rabbit_exchange, X1, write), - case Durable of - true -> ok = mnesia:write(rabbit_durable_exchange, - X1, write); - _ -> ok - end; - [] -> - ok - end - end). - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, X) -> [{Item, i(Item, X)} || Item <- Items]. - -i(name, #exchange{name = Name}) -> Name; -i(type, #exchange{type = Type}) -> Type; -i(durable, #exchange{durable = Durable}) -> Durable; -i(auto_delete, #exchange{auto_delete = AutoDelete}) -> AutoDelete; -i(internal, #exchange{internal = Internal}) -> Internal; -i(arguments, #exchange{arguments = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(X = #exchange{}) -> infos(?INFO_KEYS, X). - -info(X = #exchange{}, Items) -> infos(Items, X). - -info_all(VHostPath) -> map(VHostPath, fun (X) -> info(X) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (X) -> info(X, Items) end). - -route(X = #exchange{name = XName}, Delivery) -> - route1(Delivery, {queue:from_list([X]), XName, []}). - -route1(Delivery, {WorkList, SeenXs, QNames}) -> - case queue:out(WorkList) of - {empty, _WorkList} -> - lists:usort(QNames); - {{value, X = #exchange{type = Type}}, WorkList1} -> - DstNames = process_alternate( - X, ((type_to_module(Type)):route(X, Delivery))), - route1(Delivery, - lists:foldl(fun process_route/2, {WorkList1, SeenXs, QNames}, - DstNames)) - end. - -process_alternate(#exchange{name = XName, arguments = Args}, []) -> - case rabbit_misc:r_arg(XName, exchange, Args, <<"alternate-exchange">>) of - undefined -> []; - AName -> [AName] - end; -process_alternate(_X, Results) -> - Results. - -process_route(#resource{kind = exchange} = XName, - {_WorkList, XName, _QNames} = Acc) -> - Acc; -process_route(#resource{kind = exchange} = XName, - {WorkList, #resource{kind = exchange} = SeenX, QNames}) -> - {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:from_list([SeenX, XName]), QNames}; -process_route(#resource{kind = exchange} = XName, - {WorkList, SeenXs, QNames} = Acc) -> - case gb_sets:is_element(XName, SeenXs) of - true -> Acc; - false -> {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:add_element(XName, SeenXs), QNames} - end; -process_route(#resource{kind = queue} = QName, - {WorkList, SeenXs, QNames}) -> - {WorkList, SeenXs, [QName | QNames]}. - -call_with_exchange(XName, Fun) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> case mnesia:read({rabbit_exchange, XName}) of - [] -> rabbit_misc:const({error, not_found}); - [X] -> Fun(X) - end - end). - -delete(XName, IfUnused) -> - Fun = case IfUnused of - true -> fun conditional_delete/1; - false -> fun unconditional_delete/1 - end, - call_with_exchange( - XName, - fun (X) -> - case Fun(X) of - {deleted, X, Bs, Deletions} -> - rabbit_binding:process_deletions( - rabbit_binding:add_deletion( - XName, {X, deleted, Bs}, Deletions)); - {error, _InUseOrNotFound} = E -> - rabbit_misc:const(E) - end - end). - -maybe_auto_delete(#exchange{auto_delete = false}) -> - not_deleted; -maybe_auto_delete(#exchange{auto_delete = true} = X) -> - case conditional_delete(X) of - {error, in_use} -> not_deleted; - {deleted, X, [], Deletions} -> {deleted, Deletions} - end. - -conditional_delete(X = #exchange{name = XName}) -> - case rabbit_binding:has_for_source(XName) of - false -> unconditional_delete(X); - true -> {error, in_use} - end. - -unconditional_delete(X = #exchange{name = XName}) -> - ok = mnesia:delete({rabbit_durable_exchange, XName}), - ok = mnesia:delete({rabbit_exchange, XName}), - ok = mnesia:delete({rabbit_exchange_serial, XName}), - Bindings = rabbit_binding:remove_for_source(XName), - {deleted, X, Bindings, rabbit_binding:remove_for_destination(XName)}. - -serial(#exchange{name = XName, type = Type}) -> - case (type_to_module(Type)):serialise_events() of - true -> next_serial(XName); - false -> none - end. - -next_serial(XName) -> - [#exchange_serial{next = Serial}] = - mnesia:read(rabbit_exchange_serial, XName, write), - ok = mnesia:write(rabbit_exchange_serial, - #exchange_serial{name = XName, next = Serial + 1}, write), - Serial. - -peek_serial(XName) -> - case mnesia:read({rabbit_exchange_serial, XName}) of - [#exchange_serial{next = Serial}] -> Serial; - _ -> undefined - end. - -%% Used with atoms from records; e.g., the type is expected to exist. -type_to_module(T) -> - {ok, Module} = rabbit_registry:lookup_module(exchange, T), - Module. diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl deleted file mode 100644 index ab3d00dc..00000000 --- a/src/rabbit_exchange_type.erl +++ /dev/null @@ -1,54 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - {description, 0}, - - %% Should Rabbit ensure that all binding events that are - %% delivered to an individual exchange can be serialised? (they - %% might still be delivered out of order, but there'll be a - %% serial number). - {serialise_events, 0}, - - {route, 2}, - - %% called BEFORE declaration, to check args etc; may exit with #amqp_error{} - {validate, 1}, - - %% called after declaration and recovery - {create, 2}, - - %% called after exchange (auto)deletion. - {delete, 3}, - - %% called after a binding has been added or recovered - {add_binding, 3}, - - %% called after bindings have been deleted. - {remove_bindings, 3}, - - %% called when comparing exchanges for equivalence - should return ok or - %% exit with #amqp_error{} - {assert_args_equivalence, 2} - - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_exchange_type_direct.erl b/src/rabbit_exchange_type_direct.erl deleted file mode 100644 index b485e31f..00000000 --- a/src/rabbit_exchange_type_direct.erl +++ /dev/null @@ -1,50 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_direct). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, serialise_events/0, route/2]). --export([validate/1, create/2, delete/3, - add_binding/3, remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type direct"}, - {mfa, {rabbit_registry, register, - [exchange, <<"direct">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"direct">>}, - {description, <<"AMQP direct exchange, as per the AMQP specification">>}]. - -serialise_events() -> false. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{routing_keys = Routes}}) -> - rabbit_router:match_routing_key(Name, Routes). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_fanout.erl b/src/rabbit_exchange_type_fanout.erl deleted file mode 100644 index 3c029722..00000000 --- a/src/rabbit_exchange_type_fanout.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_fanout). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, serialise_events/0, route/2]). --export([validate/1, create/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type fanout"}, - {mfa, {rabbit_registry, register, - [exchange, <<"fanout">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"fanout">>}, - {description, <<"AMQP fanout exchange, as per the AMQP specification">>}]. - -serialise_events() -> false. - -route(#exchange{name = Name}, _Delivery) -> - rabbit_router:match_routing_key(Name, ['_']). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_headers.erl b/src/rabbit_exchange_type_headers.erl deleted file mode 100644 index f09e4aae..00000000 --- a/src/rabbit_exchange_type_headers.erl +++ /dev/null @@ -1,123 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_headers). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, serialise_events/0, route/2]). --export([validate/1, create/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type headers"}, - {mfa, {rabbit_registry, register, - [exchange, <<"headers">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --ifdef(use_specs). --spec(headers_match/2 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table()) -> boolean()). --endif. - -description() -> - [{name, <<"headers">>}, - {description, <<"AMQP headers exchange, as per the AMQP specification">>}]. - -serialise_events() -> false. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{content = Content}}) -> - Headers = case (Content#content.properties)#'P_basic'.headers of - undefined -> []; - H -> rabbit_misc:sort_field_table(H) - end, - rabbit_router:match_bindings( - Name, fun (#binding{args = Spec}) -> headers_match(Spec, Headers) end). - -default_headers_match_kind() -> all. - -parse_x_match(<<"all">>) -> all; -parse_x_match(<<"any">>) -> any; -parse_x_match(Other) -> - rabbit_log:warning("Invalid x-match field value ~p; expected all or any", - [Other]), - default_headers_match_kind(). - -%% Horrendous matching algorithm. Depends for its merge-like -%% (linear-time) behaviour on the lists:keysort -%% (rabbit_misc:sort_field_table) that route/1 and -%% rabbit_binding:{add,remove}/2 do. -%% -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% In other words: REQUIRES BOTH PATTERN AND DATA TO BE SORTED ASCENDING BY KEY. -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% -headers_match(Pattern, Data) -> - MatchKind = case lists:keysearch(<<"x-match">>, 1, Pattern) of - {value, {_, longstr, MK}} -> parse_x_match(MK); - {value, {_, Type, MK}} -> - rabbit_log:warning("Invalid x-match field type ~p " - "(value ~p); expected longstr", - [Type, MK]), - default_headers_match_kind(); - _ -> default_headers_match_kind() - end, - headers_match(Pattern, Data, true, false, MatchKind). - -headers_match([], _Data, AllMatch, _AnyMatch, all) -> - AllMatch; -headers_match([], _Data, _AllMatch, AnyMatch, any) -> - AnyMatch; -headers_match([{<<"x-", _/binary>>, _PT, _PV} | PRest], Data, - AllMatch, AnyMatch, MatchKind) -> - headers_match(PRest, Data, AllMatch, AnyMatch, MatchKind); -headers_match(_Pattern, [], _AllMatch, AnyMatch, MatchKind) -> - headers_match([], [], false, AnyMatch, MatchKind); -headers_match(Pattern = [{PK, _PT, _PV} | _], [{DK, _DT, _DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK > DK -> - headers_match(Pattern, DRest, AllMatch, AnyMatch, MatchKind); -headers_match([{PK, _PT, _PV} | PRest], Data = [{DK, _DT, _DV} | _], - _AllMatch, AnyMatch, MatchKind) when PK < DK -> - headers_match(PRest, Data, false, AnyMatch, MatchKind); -headers_match([{PK, PT, PV} | PRest], [{DK, DT, DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK == DK -> - {AllMatch1, AnyMatch1} = - if - %% It's not properly specified, but a "no value" in a - %% pattern field is supposed to mean simple presence of - %% the corresponding data field. I've interpreted that to - %% mean a type of "void" for the pattern field. - PT == void -> {AllMatch, true}; - %% Similarly, it's not specified, but I assume that a - %% mismatched type causes a mismatched value. - PT =/= DT -> {false, AnyMatch}; - PV == DV -> {AllMatch, true}; - true -> {false, AnyMatch} - end, - headers_match(PRest, DRest, AllMatch1, AnyMatch1, MatchKind). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_topic.erl b/src/rabbit_exchange_type_topic.erl deleted file mode 100644 index 348655b1..00000000 --- a/src/rabbit_exchange_type_topic.erl +++ /dev/null @@ -1,278 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_topic). - --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, serialise_events/0, route/2]). --export([validate/1, create/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type topic"}, - {mfa, {rabbit_registry, register, - [exchange, <<"topic">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%%---------------------------------------------------------------------------- - -description() -> - [{name, <<"topic">>}, - {description, <<"AMQP topic exchange, as per the AMQP specification">>}]. - -serialise_events() -> false. - -%% NB: This may return duplicate results in some situations (that's ok) -route(#exchange{name = X}, - #delivery{message = #basic_message{routing_keys = Routes}}) -> - lists:append([begin - Words = split_topic_key(RKey), - mnesia:async_dirty(fun trie_match/2, [X, Words]) - end || RKey <- Routes]). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. - -delete(transaction, #exchange{name = X}, _Bs) -> - trie_remove_all_edges(X), - trie_remove_all_bindings(X), - ok; -delete(none, _Exchange, _Bs) -> - ok. - -add_binding(transaction, _Exchange, Binding) -> - internal_add_binding(Binding); -add_binding(none, _Exchange, _Binding) -> - ok. - -remove_bindings(transaction, #exchange{name = X}, Bs) -> - %% The remove process is split into two distinct phases. In the - %% first phase we gather the lists of bindings and edges to - %% delete, then in the second phase we process all the - %% deletions. This is to prevent interleaving of read/write - %% operations in mnesia that can adversely affect performance. - {ToDelete, Paths} = - lists:foldl( - fun(#binding{source = S, key = K, destination = D}, {Acc, PathAcc}) -> - Path = [{FinalNode, _} | _] = - follow_down_get_path(S, split_topic_key(K)), - {[{FinalNode, D} | Acc], - decrement_bindings(X, Path, maybe_add_path(X, Path, PathAcc))} - end, {[], gb_trees:empty()}, Bs), - - [trie_remove_binding(X, FinalNode, D) || {FinalNode, D} <- ToDelete], - [trie_remove_edge(X, Parent, Node, W) || - {Node, {Parent, W, {0, 0}}} <- gb_trees:to_list(Paths)], - ok; -remove_bindings(none, _X, _Bs) -> - ok. - -maybe_add_path(_X, [{root, none}], PathAcc) -> - PathAcc; -maybe_add_path(X, [{Node, W}, {Parent, _} | _], PathAcc) -> - case gb_trees:is_defined(Node, PathAcc) of - true -> PathAcc; - false -> gb_trees:insert(Node, {Parent, W, {trie_binding_count(X, Node), - trie_child_count(X, Node)}}, - PathAcc) - end. - -decrement_bindings(X, Path, PathAcc) -> - with_path_acc(X, fun({Bindings, Edges}) -> {Bindings - 1, Edges} end, - Path, PathAcc). - -decrement_edges(X, Path, PathAcc) -> - with_path_acc(X, fun({Bindings, Edges}) -> {Bindings, Edges - 1} end, - Path, PathAcc). - -with_path_acc(_X, _Fun, [{root, none}], PathAcc) -> - PathAcc; -with_path_acc(X, Fun, [{Node, _} | ParentPath], PathAcc) -> - {Parent, W, Counts} = gb_trees:get(Node, PathAcc), - NewCounts = Fun(Counts), - NewPathAcc = gb_trees:update(Node, {Parent, W, NewCounts}, PathAcc), - case NewCounts of - {0, 0} -> decrement_edges(X, ParentPath, - maybe_add_path(X, ParentPath, NewPathAcc)); - _ -> NewPathAcc - end. - - -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). - -%%---------------------------------------------------------------------------- - -internal_add_binding(#binding{source = X, key = K, destination = D}) -> - FinalNode = follow_down_create(X, split_topic_key(K)), - trie_add_binding(X, FinalNode, D), - ok. - -trie_match(X, Words) -> - trie_match(X, root, Words, []). - -trie_match(X, Node, [], ResAcc) -> - trie_match_part(X, Node, "#", fun trie_match_skip_any/4, [], - trie_bindings(X, Node) ++ ResAcc); -trie_match(X, Node, [W | RestW] = Words, ResAcc) -> - lists:foldl(fun ({WArg, MatchFun, RestWArg}, Acc) -> - trie_match_part(X, Node, WArg, MatchFun, RestWArg, Acc) - end, ResAcc, [{W, fun trie_match/4, RestW}, - {"*", fun trie_match/4, RestW}, - {"#", fun trie_match_skip_any/4, Words}]). - -trie_match_part(X, Node, Search, MatchFun, RestW, ResAcc) -> - case trie_child(X, Node, Search) of - {ok, NextNode} -> MatchFun(X, NextNode, RestW, ResAcc); - error -> ResAcc - end. - -trie_match_skip_any(X, Node, [], ResAcc) -> - trie_match(X, Node, [], ResAcc); -trie_match_skip_any(X, Node, [_ | RestW] = Words, ResAcc) -> - trie_match_skip_any(X, Node, RestW, - trie_match(X, Node, Words, ResAcc)). - -follow_down_create(X, Words) -> - case follow_down_last_node(X, Words) of - {ok, FinalNode} -> FinalNode; - {error, Node, RestW} -> lists:foldl( - fun (W, CurNode) -> - NewNode = new_node_id(), - trie_add_edge(X, CurNode, NewNode, W), - NewNode - end, Node, RestW) - end. - -follow_down_last_node(X, Words) -> - follow_down(X, fun (_, Node, _) -> Node end, root, Words). - -follow_down_get_path(X, Words) -> - {ok, Path} = - follow_down(X, fun (W, Node, PathAcc) -> [{Node, W} | PathAcc] end, - [{root, none}], Words), - Path. - -follow_down(X, AccFun, Acc0, Words) -> - follow_down(X, root, AccFun, Acc0, Words). - -follow_down(_X, _CurNode, _AccFun, Acc, []) -> - {ok, Acc}; -follow_down(X, CurNode, AccFun, Acc, Words = [W | RestW]) -> - case trie_child(X, CurNode, W) of - {ok, NextNode} -> follow_down(X, NextNode, AccFun, - AccFun(W, NextNode, Acc), RestW); - error -> {error, Acc, Words} - end. - -trie_child(X, Node, Word) -> - case mnesia:read({rabbit_topic_trie_edge, - #trie_edge{exchange_name = X, - node_id = Node, - word = Word}}) of - [#topic_trie_edge{node_id = NextNode}] -> {ok, NextNode}; - [] -> error - end. - -trie_bindings(X, Node) -> - MatchHead = #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = '$1'}}, - mnesia:select(rabbit_topic_trie_binding, [{MatchHead, [], ['$1']}]). - -trie_add_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:write/3). - -trie_remove_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:delete_object/3). - -trie_edge_op(X, FromNode, ToNode, W, Op) -> - ok = Op(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = FromNode, - word = W}, - node_id = ToNode}, - write). - -trie_add_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:write/3). - -trie_remove_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:delete_object/3). - -trie_binding_op(X, Node, D, Op) -> - ok = Op(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = D}}, - write). - -trie_child_count(X, Node) -> - count(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -trie_binding_count(X, Node) -> - count(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -count(Table, Match) -> - length(mnesia:match_object(Table, Match, read)). - -trie_remove_all_edges(X) -> - remove_all(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - _ = '_'}, - _ = '_'}). - -trie_remove_all_bindings(X) -> - remove_all(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, _ = '_'}, - _ = '_'}). - -remove_all(Table, Pattern) -> - lists:foreach(fun (R) -> mnesia:delete_object(Table, R, write) end, - mnesia:match_object(Table, Pattern, write)). - -new_node_id() -> - rabbit_guid:guid(). - -split_topic_key(Key) -> - split_topic_key(Key, [], []). - -split_topic_key(<<>>, [], []) -> - []; -split_topic_key(<<>>, RevWordAcc, RevResAcc) -> - lists:reverse([lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<<$., Rest/binary>>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [], [lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [C | RevWordAcc], RevResAcc). - diff --git a/src/rabbit_framing.erl b/src/rabbit_framing.erl deleted file mode 100644 index da1a6a49..00000000 --- a/src/rabbit_framing.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% TODO auto-generate - --module(rabbit_framing). - --ifdef(use_specs). - --export_type([protocol/0, - amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(protocol() :: 'rabbit_framing_amqp_0_8' | 'rabbit_framing_amqp_0_9_1'). - --define(protocol_type(T), type(T :: rabbit_framing_amqp_0_8:T | - rabbit_framing_amqp_0_9_1:T)). - --?protocol_type(amqp_field_type()). --?protocol_type(amqp_property_type()). --?protocol_type(amqp_table()). --?protocol_type(amqp_array()). --?protocol_type(amqp_value()). --?protocol_type(amqp_method_name()). --?protocol_type(amqp_method()). --?protocol_type(amqp_method_record()). --?protocol_type(amqp_method_field_name()). --?protocol_type(amqp_property_record()). --?protocol_type(amqp_exception()). --?protocol_type(amqp_exception_code()). --?protocol_type(amqp_class_id()). - --endif. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl deleted file mode 100644 index 234bc55b..00000000 --- a/src/rabbit_guid.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_guid). - --behaviour(gen_server). - --export([start_link/0]). --export([guid/0, string_guid/1, binstring_guid/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_serial"). - --record(state, {serial}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([guid/0]). - --type(guid() :: binary()). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(guid/0 :: () -> guid()). --spec(string_guid/1 :: (any()) -> string()). --spec(binstring_guid/1 :: (any()) -> binary()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(rabbit_mnesia:dir(), ?SERIAL_FILENAME), - Serial = case rabbit_misc:read_term_file(Filename) of - {ok, [Num]} -> Num; - {error, enoent} -> 0; - {error, Reason} -> - throw({error, {cannot_read_serial_file, Filename, Reason}}) - end, - case rabbit_misc:write_term_file(Filename, [Serial + 1]) of - ok -> ok; - {error, Reason1} -> - throw({error, {cannot_write_serial_file, Filename, Reason1}}) - end, - Serial. - -%% generate a GUID. -%% -%% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. -guid() -> - %% We don't use erlang:now() here because a) it may return - %% duplicates when the system clock has been rewound prior to a - %% restart, or ids were generated at a high rate (which causes - %% now() to move ahead of the system time), and b) it is really - %% slow since it takes a global lock and makes a system call. - %% - %% A persisted serial number, in combination with self/0 (which - %% includes the node name) uniquely identifies a process in space - %% and time. We combine that with a process-local counter to give - %% us a GUID. - G = case get(guid) of - undefined -> {{gen_server:call(?SERVER, serial, infinity), self()}, - 0}; - {S, I} -> {S, I+1} - end, - put(guid, G), - erlang:md5(term_to_binary(G)). - -%% generate a readable string representation of a GUID. -string_guid(Prefix) -> - Prefix ++ "-" ++ base64:encode_to_string(guid()). - -binstring_guid(Prefix) -> - list_to_binary(string_guid(Prefix)). - -%%---------------------------------------------------------------------------- - -init([Serial]) -> - {ok, #state{serial = Serial}}. - -handle_call(serial, _From, State = #state{serial = Serial}) -> - {reply, Serial, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_heartbeat.erl b/src/rabbit_heartbeat.erl deleted file mode 100644 index 177ae868..00000000 --- a/src/rabbit_heartbeat.erl +++ /dev/null @@ -1,149 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_heartbeat). - --export([start_heartbeat_sender/3, start_heartbeat_receiver/3, - start_heartbeat_fun/1, pause_monitor/1, resume_monitor/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([heartbeaters/0]). --export_type([start_heartbeat_fun/0]). - --type(heartbeaters() :: {rabbit_types:maybe(pid()), rabbit_types:maybe(pid())}). - --type(heartbeat_callback() :: fun (() -> any())). - --type(start_heartbeat_fun() :: - fun((rabbit_net:socket(), non_neg_integer(), heartbeat_callback(), - non_neg_integer(), heartbeat_callback()) -> - no_return())). - --spec(start_heartbeat_sender/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). --spec(start_heartbeat_receiver/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). - --spec(start_heartbeat_fun/1 :: - (pid()) -> start_heartbeat_fun()). - - --spec(pause_monitor/1 :: (heartbeaters()) -> 'ok'). --spec(resume_monitor/1 :: (heartbeaters()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_heartbeat_sender(Sock, TimeoutSec, SendFun) -> - %% the 'div 2' is there so that we don't end up waiting for nearly - %% 2 * TimeoutSec before sending a heartbeat in the boundary case - %% where the last message was sent just after a heartbeat. - heartbeater( - {Sock, TimeoutSec * 1000 div 2, send_oct, 0, - fun () -> - SendFun(), - continue - end}). - -start_heartbeat_receiver(Sock, TimeoutSec, ReceiveFun) -> - %% we check for incoming data every interval, and time out after - %% two checks with no change. As a result we will time out between - %% 2 and 3 intervals after the last data has been received. - heartbeater({Sock, TimeoutSec * 1000, recv_oct, 1, fun () -> - ReceiveFun(), - stop - end}). - -start_heartbeat_fun(SupPid) -> - fun (Sock, SendTimeoutSec, SendFun, ReceiveTimeoutSec, ReceiveFun) -> - {ok, Sender} = - start_heartbeater(SendTimeoutSec, SupPid, Sock, - SendFun, heartbeat_sender, - start_heartbeat_sender), - {ok, Receiver} = - start_heartbeater(ReceiveTimeoutSec, SupPid, Sock, - ReceiveFun, heartbeat_receiver, - start_heartbeat_receiver), - {Sender, Receiver} - end. - -pause_monitor({_Sender, none}) -> - ok; -pause_monitor({_Sender, Receiver}) -> - Receiver ! pause, - ok. - -resume_monitor({_Sender, none}) -> - ok; -resume_monitor({_Sender, Receiver}) -> - Receiver ! resume, - ok. - -%%---------------------------------------------------------------------------- -start_heartbeater(0, _SupPid, _Sock, _TimeoutFun, _Name, _Callback) -> - {ok, none}; -start_heartbeater(TimeoutSec, SupPid, Sock, TimeoutFun, Name, Callback) -> - supervisor2:start_child( - SupPid, {Name, - {rabbit_heartbeat, Callback, - [Sock, TimeoutSec, TimeoutFun]}, - transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}). - -heartbeater(Params) -> - {ok, proc_lib:spawn_link(fun () -> heartbeater(Params, {0, 0}) end)}. - -heartbeater({Sock, TimeoutMillisec, StatName, Threshold, Handler} = Params, - {StatVal, SameCount}) -> - Recurse = fun (V) -> heartbeater(Params, V) end, - receive - pause -> - receive - resume -> - Recurse({0, 0}); - Other -> - exit({unexpected_message, Other}) - end; - Other -> - exit({unexpected_message, Other}) - after TimeoutMillisec -> - case rabbit_net:getstat(Sock, [StatName]) of - {ok, [{StatName, NewStatVal}]} -> - if NewStatVal =/= StatVal -> - Recurse({NewStatVal, 0}); - SameCount < Threshold -> - Recurse({NewStatVal, SameCount + 1}); - true -> - case Handler() of - stop -> ok; - continue -> Recurse({NewStatVal, 0}) - end - end; - {error, einval} -> - %% the socket is dead, most likely because the - %% connection is being shut down -> terminate - ok; - {error, Reason} -> - exit({cannot_get_socket_stats, Reason}) - end - end. diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl deleted file mode 100644 index 8f9ab032..00000000 --- a/src/rabbit_limiter.erl +++ /dev/null @@ -1,233 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_limiter). - --behaviour(gen_server2). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, prioritise_call/3]). --export([start_link/2]). --export([limit/2, can_send/3, ack/2, register/2, unregister/2]). --export([get_limit/1, block/1, unblock/1, is_blocked/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(maybe_pid() :: pid() | 'undefined'). - --spec(start_link/2 :: (pid(), non_neg_integer()) -> - rabbit_types:ok_pid_or_error()). --spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok' | 'stopped'). --spec(can_send/3 :: (maybe_pid(), pid(), boolean()) -> boolean()). --spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(get_limit/1 :: (maybe_pid()) -> non_neg_integer()). --spec(block/1 :: (maybe_pid()) -> 'ok'). --spec(unblock/1 :: (maybe_pid()) -> 'ok' | 'stopped'). --spec(is_blocked/1 :: (maybe_pid()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = orddict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - -%%---------------------------------------------------------------------------- -%% API -%%---------------------------------------------------------------------------- - -start_link(ChPid, UnackedMsgCount) -> - gen_server2:start_link(?MODULE, [ChPid, UnackedMsgCount], []). - -limit(undefined, 0) -> - ok; -limit(LimiterPid, PrefetchCount) -> - gen_server2:call(LimiterPid, {limit, PrefetchCount}, infinity). - -%% Ask the limiter whether the queue can deliver a message without -%% breaching a limit -can_send(undefined, _QPid, _AckRequired) -> - true; -can_send(LimiterPid, QPid, AckRequired) -> - rabbit_misc:with_exit_handler( - fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, - infinity) end). - -%% Let the limiter know that the channel has received some acks from a -%% consumer -ack(undefined, _Count) -> ok; -ack(LimiterPid, Count) -> gen_server2:cast(LimiterPid, {ack, Count}). - -register(undefined, _QPid) -> ok; -register(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {register, QPid}). - -unregister(undefined, _QPid) -> ok; -unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}). - -get_limit(undefined) -> - 0; -get_limit(Pid) -> - rabbit_misc:with_exit_handler( - fun () -> 0 end, - fun () -> gen_server2:call(Pid, get_limit, infinity) end). - -block(undefined) -> - ok; -block(LimiterPid) -> - gen_server2:call(LimiterPid, block, infinity). - -unblock(undefined) -> - ok; -unblock(LimiterPid) -> - gen_server2:call(LimiterPid, unblock, infinity). - -is_blocked(undefined) -> - false; -is_blocked(LimiterPid) -> - gen_server2:call(LimiterPid, is_blocked, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([ChPid, UnackedMsgCount]) -> - {ok, #lim{ch_pid = ChPid, volume = UnackedMsgCount}}. - -prioritise_call(get_limit, _From, _State) -> 9; -prioritise_call(_Msg, _From, _State) -> 0. - -handle_call({can_send, QPid, _AckRequired}, _From, - State = #lim{blocked = true}) -> - {reply, false, limit_queue(QPid, State)}; -handle_call({can_send, QPid, AckRequired}, _From, - State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} - end; - -handle_call(get_limit, _From, State = #lim{prefetch_count = PrefetchCount}) -> - {reply, PrefetchCount, State}; - -handle_call({limit, PrefetchCount}, _From, State) -> - case maybe_notify(State, State#lim{prefetch_count = PrefetchCount}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(block, _From, State) -> - {reply, ok, State#lim{blocked = true}}; - -handle_call(unblock, _From, State) -> - case maybe_notify(State, State#lim{blocked = false}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(is_blocked, _From, State) -> - {reply, blocked(State), State}. - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {cont, State1} = maybe_notify(State, State#lim{volume = NewVolume}), - {noreply, State1}; - -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; - -handle_cast({unregister, QPid}, State) -> - {noreply, forget_queue(QPid, State)}. - -handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> - {noreply, forget_queue(QPid, State)}. - -terminate(_, _) -> - ok. - -code_change(_, State, _) -> - State. - -%%---------------------------------------------------------------------------- -%% Internal plumbing -%%---------------------------------------------------------------------------- - -maybe_notify(OldState, NewState) -> - case (limit_reached(OldState) orelse blocked(OldState)) andalso - not (limit_reached(NewState) orelse blocked(NewState)) of - true -> NewState1 = notify_queues(NewState), - {case NewState1#lim.prefetch_count of - 0 -> stop; - _ -> cont - end, NewState1}; - false -> {cont, NewState} - end. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -blocked(#lim{blocked = Blocked}) -> Blocked. - -remember_queue(QPid, State = #lim{queues = Queues}) -> - case orddict:is_key(QPid, Queues) of - false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = orddict:store(QPid, {MRef, false}, Queues)}; - true -> State - end. - -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> - case orddict:find(QPid, Queues) of - {ok, {MRef, _}} -> true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), - State#lim{queues = orddict:erase(QPid, Queues)}; - error -> State - end. - -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, - State#lim{queues = orddict:update(QPid, UpdateFun, Queues)}. - -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - orddict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], orddict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, - State#lim{queues = NewQueues}. diff --git a/src/rabbit_log.erl b/src/rabbit_log.erl deleted file mode 100644 index 8207d6bc..00000000 --- a/src/rabbit_log.erl +++ /dev/null @@ -1,132 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_log). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([debug/1, debug/2, message/4, info/1, info/2, - warning/1, warning/2, error/1, error/2]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(debug/1 :: (string()) -> 'ok'). --spec(debug/2 :: (string(), [any()]) -> 'ok'). --spec(info/1 :: (string()) -> 'ok'). --spec(info/2 :: (string(), [any()]) -> 'ok'). --spec(warning/1 :: (string()) -> 'ok'). --spec(warning/2 :: (string(), [any()]) -> 'ok'). --spec(error/1 :: (string()) -> 'ok'). --spec(error/2 :: (string(), [any()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -debug(Fmt) -> - gen_server:cast(?SERVER, {debug, Fmt}). - -debug(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {debug, Fmt, Args}). - -message(Direction, Channel, MethodRecord, Content) -> - gen_server:cast(?SERVER, - {message, Direction, Channel, MethodRecord, Content}). - -info(Fmt) -> - gen_server:cast(?SERVER, {info, Fmt}). - -info(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {info, Fmt, Args}). - -warning(Fmt) -> - gen_server:cast(?SERVER, {warning, Fmt}). - -warning(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {warning, Fmt, Args}). - -error(Fmt) -> - gen_server:cast(?SERVER, {error, Fmt}). - -error(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {error, Fmt, Args}). - -%%-------------------------------------------------------------------- - -init([]) -> {ok, none}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({debug, Fmt}, State) -> - io:format("debug:: "), io:format(Fmt), - error_logger:info_msg("debug:: " ++ Fmt), - {noreply, State}; -handle_cast({debug, Fmt, Args}, State) -> - io:format("debug:: "), io:format(Fmt, Args), - error_logger:info_msg("debug:: " ++ Fmt, Args), - {noreply, State}; -handle_cast({message, Direction, Channel, MethodRecord, Content}, State) -> - io:format("~s ch~p ~p~n", - [case Direction of - in -> "-->"; - out -> "<--" end, - Channel, - {MethodRecord, Content}]), - {noreply, State}; -handle_cast({info, Fmt}, State) -> - error_logger:info_msg(Fmt), - {noreply, State}; -handle_cast({info, Fmt, Args}, State) -> - error_logger:info_msg(Fmt, Args), - {noreply, State}; -handle_cast({warning, Fmt}, State) -> - error_logger:warning_msg(Fmt), - {noreply, State}; -handle_cast({warning, Fmt, Args}, State) -> - error_logger:warning_msg(Fmt, Args), - {noreply, State}; -handle_cast({error, Fmt}, State) -> - error_logger:error_msg(Fmt), - {noreply, State}; -handle_cast({error, Fmt, Args}, State) -> - error_logger:error_msg(Fmt, Args), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl deleted file mode 100644 index 996b0a98..00000000 --- a/src/rabbit_memory_monitor.erl +++ /dev/null @@ -1,280 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - -%% This module handles the node-wide memory statistics. -%% It receives statistics from all queues, counts the desired -%% queue length (in seconds), and sends this information back to -%% queues. - --module(rabbit_memory_monitor). - --behaviour(gen_server2). - --export([start_link/0, update/0, register/2, deregister/1, - report_ram_duration/2, stop/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(process, {pid, reported, sent, callback, monitor}). - --record(state, {timer, %% 'internal_update' timer - queue_durations, %% ets #process - queue_duration_sum, %% sum of all queue_durations - queue_duration_count, %% number of elements in sum - memory_limit, %% how much memory we intend to use - desired_duration %% the desired queue duration - }). - --define(SERVER, ?MODULE). --define(DEFAULT_UPDATE_INTERVAL, 2500). --define(TABLE_NAME, ?MODULE). - -%% Because we have a feedback loop here, we need to ensure that we -%% have some space for when the queues don't quite respond as fast as -%% we would like, or when there is buffering going on in other parts -%% of the system. In short, we aim to stay some distance away from -%% when the memory alarms will go off, which cause backpressure (of -%% some sort) on producers. Note that all other Thresholds are -%% relative to this scaling. --define(MEMORY_LIMIT_SCALING, 0.4). - --define(LIMIT_THRESHOLD, 0.5). %% don't limit queues when mem use is < this - -%% If all queues are pushed to disk (duration 0), then the sum of -%% their reported lengths will be 0. If memory then becomes available, -%% unless we manually intervene, the sum will remain 0, and the queues -%% will never get a non-zero duration. Thus when the mem use is < -%% SUM_INC_THRESHOLD, increase the sum artificially by SUM_INC_AMOUNT. --define(SUM_INC_THRESHOLD, 0.95). --define(SUM_INC_AMOUNT, 1.0). - -%% If user disabled vm_memory_monitor, let's assume 1GB of memory we can use. --define(MEMORY_SIZE_FOR_DISABLED_VMM, 1073741824). - --define(EPSILON, 0.000001). %% less than this and we clamp to 0 - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(update/0 :: () -> 'ok'). --spec(register/2 :: (pid(), {atom(),atom(),[any()]}) -> 'ok'). --spec(deregister/1 :: (pid()) -> 'ok'). --spec(report_ram_duration/2 :: - (pid(), float() | 'infinity') -> number() | 'infinity'). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -update() -> - gen_server2:cast(?SERVER, update). - -register(Pid, MFA = {_M, _F, _A}) -> - gen_server2:call(?SERVER, {register, Pid, MFA}, infinity). - -deregister(Pid) -> - gen_server2:cast(?SERVER, {deregister, Pid}). - -report_ram_duration(Pid, QueueDuration) -> - gen_server2:call(?SERVER, - {report_ram_duration, Pid, QueueDuration}, infinity). - -stop() -> - gen_server2:cast(?SERVER, stop). - -%%---------------------------------------------------------------------------- -%% Gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - MemoryLimit = trunc(?MEMORY_LIMIT_SCALING * - (try - vm_memory_monitor:get_memory_limit() - catch - exit:{noproc, _} -> ?MEMORY_SIZE_FOR_DISABLED_VMM - end)), - - {ok, TRef} = timer:apply_interval(?DEFAULT_UPDATE_INTERVAL, - ?SERVER, update, []), - - Ets = ets:new(?TABLE_NAME, [set, private, {keypos, #process.pid}]), - - {ok, internal_update( - #state { timer = TRef, - queue_durations = Ets, - queue_duration_sum = 0.0, - queue_duration_count = 0, - memory_limit = MemoryLimit, - desired_duration = infinity })}. - -handle_call({report_ram_duration, Pid, QueueDuration}, From, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations, - desired_duration = SendDuration }) -> - - [Proc = #process { reported = PrevQueueDuration }] = - ets:lookup(Durations, Pid), - - gen_server2:reply(From, SendDuration), - - {Sum1, Count1} = - case {PrevQueueDuration, QueueDuration} of - {infinity, infinity} -> {Sum, Count}; - {infinity, _} -> {Sum + QueueDuration, Count + 1}; - {_, infinity} -> {Sum - PrevQueueDuration, Count - 1}; - {_, _} -> {Sum - PrevQueueDuration + QueueDuration, - Count} - end, - true = ets:insert(Durations, Proc #process { reported = QueueDuration, - sent = SendDuration }), - {noreply, State #state { queue_duration_sum = zero_clamp(Sum1), - queue_duration_count = Count1 }}; - -handle_call({register, Pid, MFA}, _From, - State = #state { queue_durations = Durations }) -> - MRef = erlang:monitor(process, Pid), - true = ets:insert(Durations, #process { pid = Pid, reported = infinity, - sent = infinity, callback = MFA, - monitor = MRef }), - {reply, ok, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast({deregister, Pid}, State) -> - {noreply, internal_deregister(Pid, true, State)}; - -handle_cast(stop, State) -> - {stop, normal, State}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, State) -> - {noreply, internal_deregister(Pid, false, State)}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state { timer = TRef }) -> - timer:cancel(TRef), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -zero_clamp(Sum) -> - case Sum < ?EPSILON of - true -> 0.0; - false -> Sum - end. - -internal_deregister(Pid, Demonitor, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations }) -> - case ets:lookup(Durations, Pid) of - [] -> State; - [#process { reported = PrevQueueDuration, monitor = MRef }] -> - true = case Demonitor of - true -> erlang:demonitor(MRef); - false -> true - end, - {Sum1, Count1} = - case PrevQueueDuration of - infinity -> {Sum, Count}; - _ -> {zero_clamp(Sum - PrevQueueDuration), - Count - 1} - end, - true = ets:delete(Durations, Pid), - State #state { queue_duration_sum = Sum1, - queue_duration_count = Count1 } - end. - -internal_update(State = #state { memory_limit = Limit, - queue_durations = Durations, - desired_duration = DesiredDurationAvg, - queue_duration_sum = Sum, - queue_duration_count = Count }) -> - MemoryRatio = erlang:memory(total) / Limit, - DesiredDurationAvg1 = - case MemoryRatio < ?LIMIT_THRESHOLD orelse Count == 0 of - true -> - infinity; - false -> - Sum1 = case MemoryRatio < ?SUM_INC_THRESHOLD of - true -> Sum + ?SUM_INC_AMOUNT; - false -> Sum - end, - (Sum1 / Count) / MemoryRatio - end, - State1 = State #state { desired_duration = DesiredDurationAvg1 }, - - %% only inform queues immediately if the desired duration has - %% decreased - case DesiredDurationAvg1 == infinity orelse - (DesiredDurationAvg /= infinity andalso - DesiredDurationAvg1 >= DesiredDurationAvg) of - true -> - ok; - false -> - true = - ets:foldl( - fun (Proc = #process { reported = QueueDuration, - sent = PrevSendDuration, - callback = {M, F, A} }, true) -> - case (case {QueueDuration, PrevSendDuration} of - {infinity, infinity} -> - true; - {infinity, D} -> - DesiredDurationAvg1 < D; - {D, infinity} -> - DesiredDurationAvg1 < D; - {D1, D2} -> - DesiredDurationAvg1 < - lists:min([D1,D2]) - end) of - true -> - ok = erlang:apply( - M, F, A ++ [DesiredDurationAvg1]), - ets:insert( - Durations, - Proc #process {sent = DesiredDurationAvg1}); - false -> - true - end - end, true, Durations) - end, - State1. diff --git a/src/rabbit_mirror_queue_coordinator.erl b/src/rabbit_mirror_queue_coordinator.erl deleted file mode 100644 index f6664a27..00000000 --- a/src/rabbit_mirror_queue_coordinator.erl +++ /dev/null @@ -1,395 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2010-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_mirror_queue_coordinator). - --export([start_link/3, get_gm/1, ensure_monitoring/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --export([joined/2, members_changed/3, handle_msg/3]). - --behaviour(gen_server2). --behaviour(gm). - --include("rabbit.hrl"). --include("gm_specs.hrl"). - --record(state, { q, - gm, - monitors, - death_fun - }). - --define(ONE_SECOND, 1000). - --ifdef(use_specs). - --spec(start_link/3 :: (rabbit_types:amqqueue(), pid() | 'undefined', - rabbit_mirror_queue_master:death_fun()) -> - rabbit_types:ok_pid_or_error()). --spec(get_gm/1 :: (pid()) -> pid()). --spec(ensure_monitoring/2 :: (pid(), [pid()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% -%% Mirror Queues -%% -%% A queue with mirrors consists of the following: -%% -%% #amqqueue{ pid, mirror_pids } -%% | | -%% +----------+ +-------+--------------+-----------...etc... -%% | | | -%% V V V -%% amqqueue_process---+ slave-----+ slave-----+ ...etc... -%% | BQ = master----+ | | BQ = vq | | BQ = vq | -%% | | BQ = vq | | +-+-------+ +-+-------+ -%% | +-+-------+ | | | -%% +-++-----|---------+ | | (some details elided) -%% || | | | -%% || coordinator-+ | | -%% || +-+---------+ | | -%% || | | | -%% || gm-+ -- -- -- -- gm-+- -- -- -- gm-+- -- --...etc... -%% || +--+ +--+ +--+ -%% || -%% consumers -%% -%% The master is merely an implementation of bq, and thus is invoked -%% through the normal bq interface by the amqqueue_process. The slaves -%% meanwhile are processes in their own right (as is the -%% coordinator). The coordinator and all slaves belong to the same gm -%% group. Every member of a gm group receives messages sent to the gm -%% group. Because the master is the bq of amqqueue_process, it doesn't -%% have sole control over its mailbox, and as a result, the master -%% itself cannot be passed messages directly (well, it could by via -%% the amqqueue:run_backing_queue callback but that would induce -%% additional unnecessary loading on the master queue process), yet it -%% needs to react to gm events, such as the death of slaves. Thus the -%% master creates the coordinator, and it is the coordinator that is -%% the gm callback module and event handler for the master. -%% -%% Consumers are only attached to the master. Thus the master is -%% responsible for informing all slaves when messages are fetched from -%% the bq, when they're acked, and when they're requeued. -%% -%% The basic goal is to ensure that all slaves performs actions on -%% their bqs in the same order as the master. Thus the master -%% intercepts all events going to its bq, and suitably broadcasts -%% these events on the gm. The slaves thus receive two streams of -%% events: one stream is via the gm, and one stream is from channels -%% directly. Whilst the stream via gm is guaranteed to be consistently -%% seen by all slaves, the same is not true of the stream via -%% channels. For example, in the event of an unexpected death of a -%% channel during a publish, only some of the mirrors may receive that -%% publish. As a result of this problem, the messages broadcast over -%% the gm contain published content, and thus slaves can operate -%% successfully on messages that they only receive via the gm. The key -%% purpose of also sending messages directly from the channels to the -%% slaves is that without this, in the event of the death of the -%% master, messages could be lost until a suitable slave is promoted. -%% -%% However, that is not the only reason. For example, if confirms are -%% in use, then there is no guarantee that every slave will see the -%% delivery with the same msg_seq_no. As a result, the slaves have to -%% wait until they've seen both the publish via gm, and the publish -%% via the channel before they have enough information to be able to -%% perform the publish to their own bq, and subsequently issue the -%% confirm, if necessary. Either form of publish can arrive first, and -%% a slave can be upgraded to the master at any point during this -%% process. Confirms continue to be issued correctly, however. -%% -%% Because the slave is a full process, it impersonates parts of the -%% amqqueue API. However, it does not need to implement all parts: for -%% example, no ack or consumer-related message can arrive directly at -%% a slave from a channel: it is only publishes that pass both -%% directly to the slaves and go via gm. -%% -%% Slaves can be added dynamically. When this occurs, there is no -%% attempt made to sync the current contents of the master with the -%% new slave, thus the slave will start empty, regardless of the state -%% of the master. Thus the slave needs to be able to detect and ignore -%% operations which are for messages it has not received: because of -%% the strict FIFO nature of queues in general, this is -%% straightforward - all new publishes that the new slave receives via -%% gm should be processed as normal, but fetches which are for -%% messages the slave has never seen should be ignored. Similarly, -%% acks for messages the slave never fetched should be -%% ignored. Eventually, as the master is consumed from, the messages -%% at the head of the queue which were there before the slave joined -%% will disappear, and the slave will become fully synced with the -%% state of the master. The detection of the sync-status of a slave is -%% done entirely based on length: if the slave and the master both -%% agree on the length of the queue after the fetch of the head of the -%% queue, then the queues must be in sync. The only other possibility -%% is that the slave's queue is shorter, and thus the fetch should be -%% ignored. -%% -%% Because acktags are issued by the bq independently, and because -%% there is no requirement for the master and all slaves to use the -%% same bq, all references to msgs going over gm is by msg_id. Thus -%% upon acking, the master must convert the acktags back to msg_ids -%% (which happens to be what bq:ack returns), then sends the msg_ids -%% over gm, the slaves must convert the msg_ids to acktags (a mapping -%% the slaves themselves must maintain). -%% -%% When the master dies, a slave gets promoted. This will be the -%% eldest slave, and thus the hope is that that slave is most likely -%% to be sync'd with the master. The design of gm is that the -%% notification of the death of the master will only appear once all -%% messages in-flight from the master have been fully delivered to all -%% members of the gm group. Thus at this point, the slave that gets -%% promoted cannot broadcast different events in a different order -%% than the master for the same msgs: there is no possibility for the -%% same msg to be processed by the old master and the new master - if -%% it was processed by the old master then it will have been processed -%% by the slave before the slave was promoted, and vice versa. -%% -%% Upon promotion, all msgs pending acks are requeued as normal, the -%% slave constructs state suitable for use in the master module, and -%% then dynamically changes into an amqqueue_process with the master -%% as the bq, and the slave's bq as the master's bq. Thus the very -%% same process that was the slave is now a full amqqueue_process. -%% -%% It is important that we avoid memory leaks due to the death of -%% senders (i.e. channels) and partial publications. A sender -%% publishing a message may fail mid way through the publish and thus -%% only some of the mirrors will receive the message. We need the -%% mirrors to be able to detect this and tidy up as necessary to avoid -%% leaks. If we just had the master monitoring all senders then we -%% would have the possibility that a sender appears and only sends the -%% message to a few of the slaves before dying. Those slaves would -%% then hold on to the message, assuming they'll receive some -%% instruction eventually from the master. Thus we have both slaves -%% and the master monitor all senders they become aware of. But there -%% is a race: if the slave receives a DOWN of a sender, how does it -%% know whether or not the master is going to send it instructions -%% regarding those messages? -%% -%% Whilst the master monitors senders, it can't access its mailbox -%% directly, so it delegates monitoring to the coordinator. When the -%% coordinator receives a DOWN message from a sender, it informs the -%% master via a callback. This allows the master to do any tidying -%% necessary, but more importantly allows the master to broadcast a -%% sender_death message to all the slaves, saying the sender has -%% died. Once the slaves receive the sender_death message, they know -%% that they're not going to receive any more instructions from the gm -%% regarding that sender, thus they throw away any publications from -%% the sender pending publication instructions. However, it is -%% possible that the coordinator receives the DOWN and communicates -%% that to the master before the master has finished receiving and -%% processing publishes from the sender. This turns out not to be a -%% problem: the sender has actually died, and so will not need to -%% receive confirms or other feedback, and should further messages be -%% "received" from the sender, the master will ask the coordinator to -%% set up a new monitor, and will continue to process the messages -%% normally. Slaves may thus receive publishes via gm from previously -%% declared "dead" senders, but again, this is fine: should the slave -%% have just thrown out the message it had received directly from the -%% sender (due to receiving a sender_death message via gm), it will be -%% able to cope with the publication purely from the master via gm. -%% -%% When a slave receives a DOWN message for a sender, if it has not -%% received the sender_death message from the master via gm already, -%% then it will wait 20 seconds before broadcasting a request for -%% confirmation from the master that the sender really has died. -%% Should a sender have only sent a publish to slaves, this allows -%% slaves to inform the master of the previous existence of the -%% sender. The master will thus monitor the sender, receive the DOWN, -%% and subsequently broadcast the sender_death message, allowing the -%% slaves to tidy up. This process can repeat for the same sender: -%% consider one slave receives the publication, then the DOWN, then -%% asks for confirmation of death, then the master broadcasts the -%% sender_death message. Only then does another slave receive the -%% publication and thus set up its monitoring. Eventually that slave -%% too will receive the DOWN, ask for confirmation and the master will -%% monitor the sender again, receive another DOWN, and send out -%% another sender_death message. Given the 20 second delay before -%% requesting death confirmation, this is highly unlikely, but it is a -%% possibility. -%% -%% When the 20 second timer expires, the slave first checks to see -%% whether it still needs confirmation of the death before requesting -%% it. This prevents unnecessary traffic on gm as it allows one -%% broadcast of the sender_death message to satisfy many slaves. -%% -%% If we consider the promotion of a slave at this point, we have two -%% possibilities: that of the slave that has received the DOWN and is -%% thus waiting for confirmation from the master that the sender -%% really is down; and that of the slave that has not received the -%% DOWN. In the first case, in the act of promotion to master, the new -%% master will monitor again the dead sender, and after it has -%% finished promoting itself, it should find another DOWN waiting, -%% which it will then broadcast. This will allow slaves to tidy up as -%% normal. In the second case, we have the possibility that -%% confirmation-of-sender-death request has been broadcast, but that -%% it was broadcast before the master failed, and that the slave being -%% promoted does not know anything about that sender, and so will not -%% monitor it on promotion. Thus a slave that broadcasts such a -%% request, at the point of broadcasting it, recurses, setting another -%% 20 second timer. As before, on expiry of the timer, the slaves -%% checks to see whether it still has not received a sender_death -%% message for the dead sender, and if not, broadcasts a death -%% confirmation request. Thus this ensures that even when a master -%% dies and the new slave has no knowledge of the dead sender, it will -%% eventually receive a death confirmation request, shall monitor the -%% dead sender, receive the DOWN and broadcast the sender_death -%% message. -%% -%% The preceding commentary deals with the possibility of slaves -%% receiving publications from senders which the master does not, and -%% the need to prevent memory leaks in such scenarios. The inverse is -%% also possible: a partial publication may cause only the master to -%% receive a publication. It will then publish the message via gm. The -%% slaves will receive it via gm, will publish it to their BQ and will -%% set up monitoring on the sender. They will then receive the DOWN -%% message and the master will eventually publish the corresponding -%% sender_death message. The slave will then be able to tidy up its -%% state as normal. -%% -%% Recovery of mirrored queues is straightforward: as nodes die, the -%% remaining nodes record this, and eventually a situation is reached -%% in which only one node is alive, which is the master. This is the -%% only node which, upon recovery, will resurrect a mirrored queue: -%% nodes which die and then rejoin as a slave will start off empty as -%% if they have no mirrored content at all. This is not surprising: to -%% achieve anything more sophisticated would require the master and -%% recovering slave to be able to check to see whether they agree on -%% the last seen state of the queue: checking length alone is not -%% sufficient in this case. -%% -%% For more documentation see the comments in bug 23554. -%% -%%---------------------------------------------------------------------------- - -start_link(Queue, GM, DeathFun) -> - gen_server2:start_link(?MODULE, [Queue, GM, DeathFun], []). - -get_gm(CPid) -> - gen_server2:call(CPid, get_gm, infinity). - -ensure_monitoring(CPid, Pids) -> - gen_server2:cast(CPid, {ensure_monitoring, Pids}). - -%% --------------------------------------------------------------------------- -%% gen_server -%% --------------------------------------------------------------------------- - -init([#amqqueue { name = QueueName } = Q, GM, DeathFun]) -> - GM1 = case GM of - undefined -> - {ok, GM2} = gm:start_link(QueueName, ?MODULE, [self()]), - receive {joined, GM2, _Members} -> - ok - end, - GM2; - _ -> - true = link(GM), - GM - end, - {ok, _TRef} = - timer:apply_interval(?ONE_SECOND, gm, broadcast, [GM1, heartbeat]), - {ok, #state { q = Q, - gm = GM1, - monitors = dict:new(), - death_fun = DeathFun }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(get_gm, _From, State = #state { gm = GM }) -> - reply(GM, State). - -handle_cast({gm_deaths, Deaths}, - State = #state { q = #amqqueue { name = QueueName } }) -> - rabbit_log:info("Mirrored-queue (~s): Master ~s saw deaths of mirrors ~s~n", - [rabbit_misc:rs(QueueName), - rabbit_misc:pid_to_string(self()), - [[rabbit_misc:pid_to_string(Pid), $ ] || Pid <- Deaths]]), - case rabbit_mirror_queue_misc:remove_from_queue(QueueName, Deaths) of - {ok, Pid} when node(Pid) =:= node() -> - noreply(State); - {error, not_found} -> - {stop, normal, State} - end; - -handle_cast({ensure_monitoring, Pids}, - State = #state { monitors = Monitors }) -> - Monitors1 = - lists:foldl(fun (Pid, MonitorsN) -> - case dict:is_key(Pid, MonitorsN) of - true -> MonitorsN; - false -> MRef = erlang:monitor(process, Pid), - dict:store(Pid, MRef, MonitorsN) - end - end, Monitors, Pids), - noreply(State #state { monitors = Monitors1 }). - -handle_info({'DOWN', _MonitorRef, process, Pid, _Reason}, - State = #state { monitors = Monitors, - death_fun = Fun }) -> - noreply( - case dict:is_key(Pid, Monitors) of - false -> State; - true -> ok = Fun(Pid), - State #state { monitors = dict:erase(Pid, Monitors) } - end); - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -terminate(_Reason, #state{}) -> - %% gen_server case - ok; -terminate([_CPid], _Reason) -> - %% gm case - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%% --------------------------------------------------------------------------- -%% GM -%% --------------------------------------------------------------------------- - -joined([CPid], Members) -> - CPid ! {joined, self(), Members}, - ok. - -members_changed([_CPid], _Births, []) -> - ok; -members_changed([CPid], _Births, Deaths) -> - ok = gen_server2:cast(CPid, {gm_deaths, Deaths}). - -handle_msg([_CPid], _From, heartbeat) -> - ok; -handle_msg([CPid], _From, {ensure_monitoring, _Pids} = Msg) -> - ok = gen_server2:cast(CPid, Msg); -handle_msg([_CPid], _From, _Msg) -> - ok. - -%% --------------------------------------------------------------------------- -%% Others -%% --------------------------------------------------------------------------- - -noreply(State) -> - {noreply, State, hibernate}. - -reply(Reply, State) -> - {reply, Reply, State, hibernate}. diff --git a/src/rabbit_mirror_queue_master.erl b/src/rabbit_mirror_queue_master.erl deleted file mode 100644 index 532911f2..00000000 --- a/src/rabbit_mirror_queue_master.erl +++ /dev/null @@ -1,390 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2010-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_mirror_queue_master). - --export([init/3, terminate/2, delete_and_terminate/2, - purge/1, publish/4, publish_delivered/5, fetch/2, ack/2, - requeue/3, len/1, is_empty/1, drain_confirmed/1, dropwhile/2, - set_ram_duration_target/2, ram_duration/1, - needs_timeout/1, timeout/1, handle_pre_hibernate/1, - status/1, invoke/3, is_duplicate/2, discard/3]). - --export([start/1, stop/0]). - --export([promote_backing_queue_state/6, sender_death_fun/0]). - --behaviour(rabbit_backing_queue). - --include("rabbit.hrl"). - --record(state, { gm, - coordinator, - backing_queue, - backing_queue_state, - set_delivered, - seen_status, - confirmed, - ack_msg_id, - known_senders - }). - --ifdef(use_specs). - --export_type([death_fun/0]). - --type(death_fun() :: fun ((pid()) -> 'ok')). --type(master_state() :: #state { gm :: pid(), - coordinator :: pid(), - backing_queue :: atom(), - backing_queue_state :: any(), - set_delivered :: non_neg_integer(), - seen_status :: dict(), - confirmed :: [rabbit_guid:guid()], - ack_msg_id :: dict(), - known_senders :: set() - }). - --spec(promote_backing_queue_state/6 :: - (pid(), atom(), any(), pid(), dict(), [pid()]) -> master_state()). --spec(sender_death_fun/0 :: () -> death_fun()). - --endif. - -%% For general documentation of HA design, see -%% rabbit_mirror_queue_coordinator - -%% --------------------------------------------------------------------------- -%% Backing queue -%% --------------------------------------------------------------------------- - -start(_DurableQueues) -> - %% This will never get called as this module will never be - %% installed as the default BQ implementation. - exit({not_valid_for_generic_backing_queue, ?MODULE}). - -stop() -> - %% Same as start/1. - exit({not_valid_for_generic_backing_queue, ?MODULE}). - -init(#amqqueue { name = QName, mirror_nodes = MNodes } = Q, Recover, - AsyncCallback) -> - {ok, CPid} = rabbit_mirror_queue_coordinator:start_link( - Q, undefined, sender_death_fun()), - GM = rabbit_mirror_queue_coordinator:get_gm(CPid), - MNodes1 = - (case MNodes of - all -> rabbit_mnesia:all_clustered_nodes(); - undefined -> []; - _ -> [list_to_atom(binary_to_list(Node)) || Node <- MNodes] - end) -- [node()], - [rabbit_mirror_queue_misc:add_mirror(QName, Node) || Node <- MNodes1], - {ok, BQ} = application:get_env(backing_queue_module), - BQS = BQ:init(Q, Recover, AsyncCallback), - #state { gm = GM, - coordinator = CPid, - backing_queue = BQ, - backing_queue_state = BQS, - set_delivered = 0, - seen_status = dict:new(), - confirmed = [], - ack_msg_id = dict:new(), - known_senders = sets:new() }. - -terminate({shutdown, dropped} = Reason, - State = #state { backing_queue = BQ, backing_queue_state = BQS }) -> - %% Backing queue termination - this node has been explicitly - %% dropped. Normally, non-durable queues would be tidied up on - %% startup, but there's a possibility that we will be added back - %% in without this node being restarted. Thus we must do the full - %% blown delete_and_terminate now, but only locally: we do not - %% broadcast delete_and_terminate. - State #state { backing_queue_state = BQ:delete_and_terminate(Reason, BQS), - set_delivered = 0 }; -terminate(Reason, - State = #state { backing_queue = BQ, backing_queue_state = BQS }) -> - %% Backing queue termination. The queue is going down but - %% shouldn't be deleted. Most likely safe shutdown of this - %% node. Thus just let some other slave take over. - State #state { backing_queue_state = BQ:terminate(Reason, BQS) }. - -delete_and_terminate(Reason, State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS }) -> - ok = gm:broadcast(GM, {delete_and_terminate, Reason}), - State #state { backing_queue_state = BQ:delete_and_terminate(Reason, BQS), - set_delivered = 0 }. - -purge(State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS }) -> - ok = gm:broadcast(GM, {set_length, 0}), - {Count, BQS1} = BQ:purge(BQS), - {Count, State #state { backing_queue_state = BQS1, - set_delivered = 0 }}. - -publish(Msg = #basic_message { id = MsgId }, MsgProps, ChPid, - State = #state { gm = GM, - seen_status = SS, - backing_queue = BQ, - backing_queue_state = BQS }) -> - false = dict:is_key(MsgId, SS), %% ASSERTION - ok = gm:broadcast(GM, {publish, false, ChPid, MsgProps, Msg}), - BQS1 = BQ:publish(Msg, MsgProps, ChPid, BQS), - ensure_monitoring(ChPid, State #state { backing_queue_state = BQS1 }). - -publish_delivered(AckRequired, Msg = #basic_message { id = MsgId }, MsgProps, - ChPid, State = #state { gm = GM, - seen_status = SS, - backing_queue = BQ, - backing_queue_state = BQS, - ack_msg_id = AM }) -> - false = dict:is_key(MsgId, SS), %% ASSERTION - %% Must use confirmed_broadcast here in order to guarantee that - %% all slaves are forced to interpret this publish_delivered at - %% the same point, especially if we die and a slave is promoted. - ok = gm:confirmed_broadcast( - GM, {publish, {true, AckRequired}, ChPid, MsgProps, Msg}), - {AckTag, BQS1} = - BQ:publish_delivered(AckRequired, Msg, MsgProps, ChPid, BQS), - AM1 = maybe_store_acktag(AckTag, MsgId, AM), - {AckTag, - ensure_monitoring(ChPid, State #state { backing_queue_state = BQS1, - ack_msg_id = AM1 })}. - -dropwhile(Fun, State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - set_delivered = SetDelivered }) -> - Len = BQ:len(BQS), - BQS1 = BQ:dropwhile(Fun, BQS), - Dropped = Len - BQ:len(BQS1), - SetDelivered1 = lists:max([0, SetDelivered - Dropped]), - ok = gm:broadcast(GM, {set_length, BQ:len(BQS1)}), - State #state { backing_queue_state = BQS1, - set_delivered = SetDelivered1 }. - -drain_confirmed(State = #state { backing_queue = BQ, - backing_queue_state = BQS, - seen_status = SS, - confirmed = Confirmed }) -> - {MsgIds, BQS1} = BQ:drain_confirmed(BQS), - {MsgIds1, SS1} = - lists:foldl( - fun (MsgId, {MsgIdsN, SSN}) -> - %% We will never see 'discarded' here - case dict:find(MsgId, SSN) of - error -> - {[MsgId | MsgIdsN], SSN}; - {ok, published} -> - %% It was published when we were a slave, - %% and we were promoted before we saw the - %% publish from the channel. We still - %% haven't seen the channel publish, and - %% consequently we need to filter out the - %% confirm here. We will issue the confirm - %% when we see the publish from the channel. - {MsgIdsN, dict:store(MsgId, confirmed, SSN)}; - {ok, confirmed} -> - %% Well, confirms are racy by definition. - {[MsgId | MsgIdsN], SSN} - end - end, {[], SS}, MsgIds), - {Confirmed ++ MsgIds1, State #state { backing_queue_state = BQS1, - seen_status = SS1, - confirmed = [] }}. - -fetch(AckRequired, State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - set_delivered = SetDelivered, - ack_msg_id = AM }) -> - {Result, BQS1} = BQ:fetch(AckRequired, BQS), - State1 = State #state { backing_queue_state = BQS1 }, - case Result of - empty -> - {Result, State1}; - {#basic_message { id = MsgId } = Message, IsDelivered, AckTag, - Remaining} -> - ok = gm:broadcast(GM, {fetch, AckRequired, MsgId, Remaining}), - IsDelivered1 = IsDelivered orelse SetDelivered > 0, - SetDelivered1 = lists:max([0, SetDelivered - 1]), - AM1 = maybe_store_acktag(AckTag, MsgId, AM), - {{Message, IsDelivered1, AckTag, Remaining}, - State1 #state { set_delivered = SetDelivered1, - ack_msg_id = AM1 }} - end. - -ack(AckTags, State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - ack_msg_id = AM }) -> - {MsgIds, BQS1} = BQ:ack(AckTags, BQS), - AM1 = lists:foldl(fun dict:erase/2, AM, AckTags), - case MsgIds of - [] -> ok; - _ -> ok = gm:broadcast(GM, {ack, MsgIds}) - end, - {MsgIds, State #state { backing_queue_state = BQS1, - ack_msg_id = AM1 }}. - -requeue(AckTags, MsgPropsFun, State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS }) -> - {MsgIds, BQS1} = BQ:requeue(AckTags, MsgPropsFun, BQS), - ok = gm:broadcast(GM, {requeue, MsgPropsFun, MsgIds}), - {MsgIds, State #state { backing_queue_state = BQS1 }}. - -len(#state { backing_queue = BQ, backing_queue_state = BQS }) -> - BQ:len(BQS). - -is_empty(#state { backing_queue = BQ, backing_queue_state = BQS }) -> - BQ:is_empty(BQS). - -set_ram_duration_target(Target, State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - State #state { backing_queue_state = - BQ:set_ram_duration_target(Target, BQS) }. - -ram_duration(State = #state { backing_queue = BQ, backing_queue_state = BQS }) -> - {Result, BQS1} = BQ:ram_duration(BQS), - {Result, State #state { backing_queue_state = BQS1 }}. - -needs_timeout(#state { backing_queue = BQ, backing_queue_state = BQS }) -> - BQ:needs_timeout(BQS). - -timeout(State = #state { backing_queue = BQ, backing_queue_state = BQS }) -> - State #state { backing_queue_state = BQ:timeout(BQS) }. - -handle_pre_hibernate(State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - State #state { backing_queue_state = BQ:handle_pre_hibernate(BQS) }. - -status(#state { backing_queue = BQ, backing_queue_state = BQS }) -> - BQ:status(BQS). - -invoke(?MODULE, Fun, State) -> - Fun(?MODULE, State); -invoke(Mod, Fun, State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - State #state { backing_queue_state = BQ:invoke(Mod, Fun, BQS) }. - -is_duplicate(Message = #basic_message { id = MsgId }, - State = #state { seen_status = SS, - backing_queue = BQ, - backing_queue_state = BQS, - confirmed = Confirmed }) -> - %% Here, we need to deal with the possibility that we're about to - %% receive a message that we've already seen when we were a slave - %% (we received it via gm). Thus if we do receive such message now - %% via the channel, there may be a confirm waiting to issue for - %% it. - - %% We will never see {published, ChPid, MsgSeqNo} here. - case dict:find(MsgId, SS) of - error -> - %% We permit the underlying BQ to have a peek at it, but - %% only if we ourselves are not filtering out the msg. - {Result, BQS1} = BQ:is_duplicate(Message, BQS), - {Result, State #state { backing_queue_state = BQS1 }}; - {ok, published} -> - %% It already got published when we were a slave and no - %% confirmation is waiting. amqqueue_process will have, in - %% its msg_id_to_channel mapping, the entry for dealing - %% with the confirm when that comes back in (it's added - %% immediately after calling is_duplicate). The msg is - %% invalid. We will not see this again, nor will we be - %% further involved in confirming this message, so erase. - {published, State #state { seen_status = dict:erase(MsgId, SS) }}; - {ok, confirmed} -> - %% It got published when we were a slave via gm, and - %% confirmed some time after that (maybe even after - %% promotion), but before we received the publish from the - %% channel, so couldn't previously know what the - %% msg_seq_no was (and thus confirm as a slave). So we - %% need to confirm now. As above, amqqueue_process will - %% have the entry for the msg_id_to_channel mapping added - %% immediately after calling is_duplicate/2. - {published, State #state { seen_status = dict:erase(MsgId, SS), - confirmed = [MsgId | Confirmed] }}; - {ok, discarded} -> - %% Don't erase from SS here because discard/2 is about to - %% be called and we need to be able to detect this case - {discarded, State} - end. - -discard(Msg = #basic_message { id = MsgId }, ChPid, - State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - seen_status = SS }) -> - %% It's a massive error if we get told to discard something that's - %% already been published or published-and-confirmed. To do that - %% would require non FIFO access. Hence we should not find - %% 'published' or 'confirmed' in this dict:find. - case dict:find(MsgId, SS) of - error -> - ok = gm:broadcast(GM, {discard, ChPid, Msg}), - State #state { backing_queue_state = BQ:discard(Msg, ChPid, BQS), - seen_status = dict:erase(MsgId, SS) }; - {ok, discarded} -> - State - end. - -%% --------------------------------------------------------------------------- -%% Other exported functions -%% --------------------------------------------------------------------------- - -promote_backing_queue_state(CPid, BQ, BQS, GM, SeenStatus, KS) -> - #state { gm = GM, - coordinator = CPid, - backing_queue = BQ, - backing_queue_state = BQS, - set_delivered = BQ:len(BQS), - seen_status = SeenStatus, - confirmed = [], - ack_msg_id = dict:new(), - known_senders = sets:from_list(KS) }. - -sender_death_fun() -> - Self = self(), - fun (DeadPid) -> - rabbit_amqqueue:run_backing_queue( - Self, ?MODULE, - fun (?MODULE, State = #state { gm = GM, known_senders = KS }) -> - ok = gm:broadcast(GM, {sender_death, DeadPid}), - KS1 = sets:del_element(DeadPid, KS), - State #state { known_senders = KS1 } - end) - end. - -%% --------------------------------------------------------------------------- -%% Helpers -%% --------------------------------------------------------------------------- - -maybe_store_acktag(undefined, _MsgId, AM) -> - AM; -maybe_store_acktag(AckTag, MsgId, AM) -> - dict:store(AckTag, MsgId, AM). - -ensure_monitoring(ChPid, State = #state { coordinator = CPid, - known_senders = KS }) -> - case sets:is_element(ChPid, KS) of - true -> State; - false -> ok = rabbit_mirror_queue_coordinator:ensure_monitoring( - CPid, [ChPid]), - State #state { known_senders = sets:add_element(ChPid, KS) } - end. diff --git a/src/rabbit_mirror_queue_misc.erl b/src/rabbit_mirror_queue_misc.erl deleted file mode 100644 index 6a9f733e..00000000 --- a/src/rabbit_mirror_queue_misc.erl +++ /dev/null @@ -1,135 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2010-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_mirror_queue_misc). - --export([remove_from_queue/2, on_node_up/0, - drop_mirror/2, drop_mirror/3, add_mirror/2, add_mirror/3]). - --include("rabbit.hrl"). - -%% If the dead pids include the queue pid (i.e. the master has died) -%% then only remove that if we are about to be promoted. Otherwise we -%% can have the situation where a slave updates the mnesia record for -%% a queue, promoting another slave before that slave realises it has -%% become the new master, which is bad because it could then mean the -%% slave (now master) receives messages it's not ready for (for -%% example, new consumers). -remove_from_queue(QueueName, DeadPids) -> - DeadNodes = [node(DeadPid) || DeadPid <- DeadPids], - rabbit_misc:execute_mnesia_transaction( - fun () -> - %% Someone else could have deleted the queue before we - %% get here. - case mnesia:read({rabbit_queue, QueueName}) of - [] -> {error, not_found}; - [Q = #amqqueue { pid = QPid, - slave_pids = SPids }] -> - [QPid1 | SPids1] = - [Pid || Pid <- [QPid | SPids], - not lists:member(node(Pid), DeadNodes)], - case {{QPid, SPids}, {QPid1, SPids1}} of - {Same, Same} -> - ok; - _ when QPid =:= QPid1 orelse node(QPid1) =:= node() -> - %% Either master hasn't changed, so - %% we're ok to update mnesia; or we have - %% become the master. - Q1 = Q #amqqueue { pid = QPid1, - slave_pids = SPids1 }, - ok = rabbit_amqqueue:store_queue(Q1); - _ -> - %% Master has changed, and we're not it, - %% so leave alone to allow the promoted - %% slave to find it and make its - %% promotion atomic. - ok - end, - {ok, QPid1} - end - end). - -on_node_up() -> - Qs = - rabbit_misc:execute_mnesia_transaction( - fun () -> - mnesia:foldl( - fun (#amqqueue { mirror_nodes = undefined }, QsN) -> - QsN; - (#amqqueue { name = QName, - mirror_nodes = all }, QsN) -> - [QName | QsN]; - (#amqqueue { name = QName, - mirror_nodes = MNodes }, QsN) -> - case lists:member(node(), MNodes) of - true -> [QName | QsN]; - false -> QsN - end - end, [], rabbit_queue) - end), - [add_mirror(Q, node()) || Q <- Qs], - ok. - -drop_mirror(VHostPath, QueueName, MirrorNode) -> - drop_mirror(rabbit_misc:r(VHostPath, queue, QueueName), MirrorNode). - -drop_mirror(Queue, MirrorNode) -> - if_mirrored_queue( - Queue, - fun (#amqqueue { name = Name, pid = QPid, slave_pids = SPids }) -> - case [Pid || Pid <- [QPid | SPids], node(Pid) =:= MirrorNode] of - [] -> - {error, {queue_not_mirrored_on_node, MirrorNode}}; - [QPid] when SPids =:= [] -> - {error, cannot_drop_only_mirror}; - [Pid] -> - rabbit_log:info( - "Dropping queue mirror on node ~p for ~s~n", - [MirrorNode, rabbit_misc:rs(Name)]), - exit(Pid, {shutdown, dropped}), - ok - end - end). - -add_mirror(VHostPath, QueueName, MirrorNode) -> - add_mirror(rabbit_misc:r(VHostPath, queue, QueueName), MirrorNode). - -add_mirror(Queue, MirrorNode) -> - if_mirrored_queue( - Queue, - fun (#amqqueue { name = Name, pid = QPid, slave_pids = SPids } = Q) -> - case [Pid || Pid <- [QPid | SPids], node(Pid) =:= MirrorNode] of - [] -> Result = rabbit_mirror_queue_slave_sup:start_child( - MirrorNode, [Q]), - rabbit_log:info( - "Adding mirror of queue ~s on node ~p: ~p~n", - [rabbit_misc:rs(Name), MirrorNode, Result]), - case Result of - {ok, _Pid} -> ok; - _ -> Result - end; - [_] -> {error, {queue_already_mirrored_on_node, MirrorNode}} - end - end). - -if_mirrored_queue(Queue, Fun) -> - rabbit_amqqueue:with( - Queue, fun (#amqqueue { arguments = Args } = Q) -> - case rabbit_misc:table_lookup(Args, <<"x-ha-policy">>) of - undefined -> ok; - _ -> Fun(Q) - end - end). diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl deleted file mode 100644 index b38a8967..00000000 --- a/src/rabbit_mirror_queue_slave.erl +++ /dev/null @@ -1,850 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2010-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_mirror_queue_slave). - -%% For general documentation of HA design, see -%% rabbit_mirror_queue_coordinator -%% -%% We join the GM group before we add ourselves to the amqqueue -%% record. As a result: -%% 1. We can receive msgs from GM that correspond to messages we will -%% never receive from publishers. -%% 2. When we receive a message from publishers, we must receive a -%% message from the GM group for it. -%% 3. However, that instruction from the GM group can arrive either -%% before or after the actual message. We need to be able to -%% distinguish between GM instructions arriving early, and case (1) -%% above. -%% -%% All instructions from the GM group must be processed in the order -%% in which they're received. - --export([start_link/1, set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2]). - --export([joined/2, members_changed/3, handle_msg/3]). - --behaviour(gen_server2). --behaviour(gm). - --include("rabbit.hrl"). --include("gm_specs.hrl"). - --define(SYNC_INTERVAL, 25). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). --define(DEATH_TIMEOUT, 20000). %% 20 seconds - --record(state, { q, - gm, - master_pid, - backing_queue, - backing_queue_state, - sync_timer_ref, - rate_timer_ref, - - sender_queues, %% :: Pid -> {Q {Msg, Bool}, Set MsgId} - msg_id_ack, %% :: MsgId -> AckTag - ack_num, - - msg_id_status, - known_senders - }). - -start_link(Q) -> - gen_server2:start_link(?MODULE, [Q], []). - -set_maximum_since_use(QPid, Age) -> - gen_server2:cast(QPid, {set_maximum_since_use, Age}). - -init([#amqqueue { name = QueueName } = Q]) -> - process_flag(trap_exit, true), %% amqqueue_process traps exits too. - {ok, GM} = gm:start_link(QueueName, ?MODULE, [self()]), - receive {joined, GM} -> - ok - end, - Self = self(), - Node = node(), - {ok, MPid} = - rabbit_misc:execute_mnesia_transaction( - fun () -> - [Q1 = #amqqueue { pid = QPid, slave_pids = MPids }] = - mnesia:read({rabbit_queue, QueueName}), - %% ASSERTION - [] = [Pid || Pid <- [QPid | MPids], node(Pid) =:= Node], - MPids1 = MPids ++ [Self], - mnesia:write(rabbit_queue, - Q1 #amqqueue { slave_pids = MPids1 }, - write), - {ok, QPid} - end), - erlang:monitor(process, MPid), - ok = file_handle_cache:register_callback( - rabbit_amqqueue, set_maximum_since_use, [self()]), - ok = rabbit_memory_monitor:register( - self(), {rabbit_amqqueue, set_ram_duration_target, [self()]}), - {ok, BQ} = application:get_env(backing_queue_module), - BQS = bq_init(BQ, Q, false), - {ok, #state { q = Q, - gm = GM, - master_pid = MPid, - backing_queue = BQ, - backing_queue_state = BQS, - rate_timer_ref = undefined, - sync_timer_ref = undefined, - - sender_queues = dict:new(), - msg_id_ack = dict:new(), - ack_num = 0, - - msg_id_status = dict:new(), - known_senders = dict:new() - }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({deliver_immediately, Delivery = #delivery {}}, From, State) -> - %% Synchronous, "immediate" delivery mode - - %% It is safe to reply 'false' here even if a) we've not seen the - %% msg via gm, or b) the master dies before we receive the msg via - %% gm. In the case of (a), we will eventually receive the msg via - %% gm, and it's only the master's result to the channel that is - %% important. In the case of (b), if the master does die and we do - %% get promoted then at that point we have no consumers, thus - %% 'false' is precisely the correct answer. However, we must be - %% careful to _not_ enqueue the message in this case. - - %% Note this is distinct from the case where we receive the msg - %% via gm first, then we're promoted to master, and only then do - %% we receive the msg from the channel. - gen_server2:reply(From, false), %% master may deliver it, not us - noreply(maybe_enqueue_message(Delivery, false, State)); - -handle_call({deliver, Delivery = #delivery {}}, From, State) -> - %% Synchronous, "mandatory" delivery mode - gen_server2:reply(From, true), %% amqqueue throws away the result anyway - noreply(maybe_enqueue_message(Delivery, true, State)); - -handle_call({gm_deaths, Deaths}, From, - State = #state { q = #amqqueue { name = QueueName }, - gm = GM, - master_pid = MPid }) -> - rabbit_log:info("Mirrored-queue (~s): Slave ~s saw deaths of mirrors ~s~n", - [rabbit_misc:rs(QueueName), - rabbit_misc:pid_to_string(self()), - [[rabbit_misc:pid_to_string(Pid), $ ] || Pid <- Deaths]]), - %% The GM has told us about deaths, which means we're not going to - %% receive any more messages from GM - case rabbit_mirror_queue_misc:remove_from_queue(QueueName, Deaths) of - {ok, Pid} when node(Pid) =:= node(MPid) -> - %% master hasn't changed - reply(ok, State); - {ok, Pid} when node(Pid) =:= node() -> - %% we've become master - promote_me(From, State); - {ok, Pid} -> - %% master has changed to not us. - gen_server2:reply(From, ok), - erlang:monitor(process, Pid), - ok = gm:broadcast(GM, heartbeat), - noreply(State #state { master_pid = Pid }); - {error, not_found} -> - gen_server2:reply(From, ok), - {stop, normal, State} - end. - -handle_cast({run_backing_queue, Mod, Fun}, State) -> - noreply(run_backing_queue(Mod, Fun, State)); - -handle_cast({gm, Instruction}, State) -> - handle_process_result(process_instruction(Instruction, State)); - -handle_cast({deliver, Delivery = #delivery {}}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - noreply(maybe_enqueue_message(Delivery, true, State)); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_cast({set_ram_duration_target, Duration}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - BQS1 = BQ:set_ram_duration_target(Duration, BQS), - noreply(State #state { backing_queue_state = BQS1 }); - -handle_cast(update_ram_duration, - State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State #state { rate_timer_ref = just_measured, - backing_queue_state = BQS2 }); - -handle_cast(sync_timeout, State) -> - noreply(backing_queue_timeout( - State #state { sync_timer_ref = undefined })). - -handle_info(timeout, State) -> - noreply(backing_queue_timeout(State)); - -handle_info({'DOWN', _MonitorRef, process, MPid, _Reason}, - State = #state { gm = GM, master_pid = MPid }) -> - ok = gm:broadcast(GM, {process_death, MPid}), - noreply(State); - -handle_info({'DOWN', _MonitorRef, process, ChPid, _Reason}, State) -> - noreply(local_sender_death(ChPid, State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -%% If the Reason is shutdown, or {shutdown, _}, it is not the queue -%% being deleted: it's just the node going down. Even though we're a -%% slave, we have no idea whether or not we'll be the only copy coming -%% back up. Thus we must assume we will be, and preserve anything we -%% have on disk. -terminate(_Reason, #state { backing_queue_state = undefined }) -> - %% We've received a delete_and_terminate from gm, thus nothing to - %% do here. - ok; -terminate({shutdown, dropped} = R, #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - %% See rabbit_mirror_queue_master:terminate/2 - BQ:delete_and_terminate(R, BQS); -terminate(Reason, #state { q = Q, - gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - rate_timer_ref = RateTRef }) -> - ok = gm:leave(GM), - QueueState = rabbit_amqqueue_process:init_with_backing_queue_state( - Q, BQ, BQS, RateTRef, [], [], dict:new()), - rabbit_amqqueue_process:terminate(Reason, QueueState); -terminate([_SPid], _Reason) -> - %% gm case - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_pre_hibernate(State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - BQS3 = BQ:handle_pre_hibernate(BQS2), - {hibernate, stop_rate_timer(State #state { backing_queue_state = BQS3 })}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - {gm_deaths, _Deaths} -> 5; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - update_ram_duration -> 8; - {set_ram_duration_target, _Duration} -> 8; - {set_maximum_since_use, _Age} -> 8; - {run_backing_queue, _Mod, _Fun} -> 6; - sync_timeout -> 6; - {gm, _Msg} -> 5; - {post_commit, _Txn, _AckTags} -> 4; - _ -> 0 - end. - -%% --------------------------------------------------------------------------- -%% GM -%% --------------------------------------------------------------------------- - -joined([SPid], _Members) -> - SPid ! {joined, self()}, - ok. - -members_changed([_SPid], _Births, []) -> - ok; -members_changed([SPid], _Births, Deaths) -> - inform_deaths(SPid, Deaths). - -handle_msg([_SPid], _From, heartbeat) -> - ok; -handle_msg([_SPid], _From, {ensure_monitoring, _Pid}) -> - %% This is only of value to the master - ok; -handle_msg([SPid], _From, {process_death, Pid}) -> - inform_deaths(SPid, [Pid]); -handle_msg([SPid], _From, Msg) -> - ok = gen_server2:cast(SPid, {gm, Msg}). - -inform_deaths(SPid, Deaths) -> - rabbit_misc:with_exit_handler( - fun () -> {stop, normal} end, - fun () -> - case gen_server2:call(SPid, {gm_deaths, Deaths}, infinity) of - ok -> - ok; - {promote, CPid} -> - {become, rabbit_mirror_queue_coordinator, [CPid]} - end - end). - -%% --------------------------------------------------------------------------- -%% Others -%% --------------------------------------------------------------------------- - -bq_init(BQ, Q, Recover) -> - Self = self(), - BQ:init(Q, Recover, - fun (Mod, Fun) -> - rabbit_amqqueue:run_backing_queue(Self, Mod, Fun) - end). - -run_backing_queue(rabbit_mirror_queue_master, Fun, State) -> - %% Yes, this might look a little crazy, but see comments in - %% confirm_sender_death/1 - Fun(?MODULE, State); -run_backing_queue(Mod, Fun, State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - State #state { backing_queue_state = BQ:invoke(Mod, Fun, BQS) }. - -needs_confirming(#delivery{ msg_seq_no = undefined }, _State) -> - never; -needs_confirming(#delivery { message = #basic_message { - is_persistent = true } }, - #state { q = #amqqueue { durable = true } }) -> - eventually; -needs_confirming(_Delivery, _State) -> - immediately. - -confirm_messages(MsgIds, State = #state { msg_id_status = MS }) -> - {MS1, CMs} = - lists:foldl( - fun (MsgId, {MSN, CMsN} = Acc) -> - %% We will never see 'discarded' here - case dict:find(MsgId, MSN) of - error -> - %% If it needed confirming, it'll have - %% already been done. - Acc; - {ok, {published, ChPid}} -> - %% Still not seen it from the channel, just - %% record that it's been confirmed. - {dict:store(MsgId, {confirmed, ChPid}, MSN), CMsN}; - {ok, {published, ChPid, MsgSeqNo}} -> - %% Seen from both GM and Channel. Can now - %% confirm. - {dict:erase(MsgId, MSN), - gb_trees_cons(ChPid, MsgSeqNo, CMsN)}; - {ok, {confirmed, _ChPid}} -> - %% It's already been confirmed. This is - %% probably it's been both sync'd to disk - %% and then delivered and ack'd before we've - %% seen the publish from the - %% channel. Nothing to do here. - Acc - end - end, {MS, gb_trees:empty()}, MsgIds), - [ok = rabbit_channel:confirm(ChPid, MsgSeqNos) - || {ChPid, MsgSeqNos} <- gb_trees:to_list(CMs)], - State #state { msg_id_status = MS1 }. - -gb_trees_cons(Key, Value, Tree) -> - case gb_trees:lookup(Key, Tree) of - {value, Values} -> gb_trees:update(Key, [Value | Values], Tree); - none -> gb_trees:insert(Key, [Value], Tree) - end. - -handle_process_result({ok, State}) -> noreply(State); -handle_process_result({stop, State}) -> {stop, normal, State}. - -promote_me(From, #state { q = Q, - gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - rate_timer_ref = RateTRef, - sender_queues = SQ, - msg_id_ack = MA, - msg_id_status = MS, - known_senders = KS }) -> - rabbit_log:info("Mirrored-queue (~s): Promoting slave ~s to master~n", - [rabbit_misc:rs(Q #amqqueue.name), - rabbit_misc:pid_to_string(self())]), - Q1 = Q #amqqueue { pid = self() }, - {ok, CPid} = rabbit_mirror_queue_coordinator:start_link( - Q1, GM, rabbit_mirror_queue_master:sender_death_fun()), - true = unlink(GM), - gen_server2:reply(From, {promote, CPid}), - ok = gm:confirmed_broadcast(GM, heartbeat), - - %% Everything that we're monitoring, we need to ensure our new - %% coordinator is monitoring. - - MonitoringPids = [begin true = erlang:demonitor(MRef), - Pid - end || {Pid, MRef} <- dict:to_list(KS)], - ok = rabbit_mirror_queue_coordinator:ensure_monitoring( - CPid, MonitoringPids), - - %% We find all the messages that we've received from channels but - %% not from gm, and if they're due to be enqueued on promotion - %% then we pass them to the - %% queue_process:init_with_backing_queue_state to be enqueued. - %% - %% We also have to requeue messages which are pending acks: the - %% consumers from the master queue have been lost and so these - %% messages need requeuing. They might also be pending - %% confirmation, and indeed they might also be pending arrival of - %% the publication from the channel itself, if we received both - %% the publication and the fetch via gm first! Requeuing doesn't - %% affect confirmations: if the message was previously pending a - %% confirmation then it still will be, under the same msg_id. So - %% as a master, we need to be prepared to filter out the - %% publication of said messages from the channel (is_duplicate - %% (thus such requeued messages must remain in the msg_id_status - %% (MS) which becomes seen_status (SS) in the master)). - %% - %% Then there are messages we already have in the queue, which are - %% not currently pending acknowledgement: - %% 1. Messages we've only received via gm: - %% Filter out subsequent publication from channel through - %% validate_message. Might have to issue confirms then or - %% later, thus queue_process state will have to know that - %% there's a pending confirm. - %% 2. Messages received via both gm and channel: - %% Queue will have to deal with issuing confirms if necessary. - %% - %% MS contains the following three entry types: - %% - %% a) {published, ChPid}: - %% published via gm only; pending arrival of publication from - %% channel, maybe pending confirm. - %% - %% b) {published, ChPid, MsgSeqNo}: - %% published via gm and channel; pending confirm. - %% - %% c) {confirmed, ChPid}: - %% published via gm only, and confirmed; pending publication - %% from channel. - %% - %% d) discarded - %% seen via gm only as discarded. Pending publication from - %% channel - %% - %% The forms a, c and d only, need to go to the master state - %% seen_status (SS). - %% - %% The form b only, needs to go through to the queue_process - %% state to form the msg_id_to_channel mapping (MTC). - %% - %% No messages that are enqueued from SQ at this point will have - %% entries in MS. - %% - %% Messages that are extracted from MA may have entries in MS, and - %% those messages are then requeued. However, as discussed above, - %% this does not affect MS, nor which bits go through to SS in - %% Master, or MTC in queue_process. - %% - %% Everything that's in MA gets requeued. Consequently the new - %% master should start with a fresh AM as there are no messages - %% pending acks. - - MSList = dict:to_list(MS), - SS = dict:from_list( - [E || E = {_MsgId, discarded} <- MSList] ++ - [{MsgId, Status} - || {MsgId, {Status, _ChPid}} <- MSList, - Status =:= published orelse Status =:= confirmed]), - - MasterState = rabbit_mirror_queue_master:promote_backing_queue_state( - CPid, BQ, BQS, GM, SS, MonitoringPids), - - MTC = dict:from_list( - [{MsgId, {ChPid, MsgSeqNo}} || - {MsgId, {published, ChPid, MsgSeqNo}} <- dict:to_list(MS)]), - NumAckTags = [NumAckTag || {_MsgId, NumAckTag} <- dict:to_list(MA)], - AckTags = [AckTag || {_Num, AckTag} <- lists:sort(NumAckTags)], - Deliveries = [Delivery || {_ChPid, {PubQ, _PendCh}} <- dict:to_list(SQ), - {Delivery, true} <- queue:to_list(PubQ)], - QueueState = rabbit_amqqueue_process:init_with_backing_queue_state( - Q1, rabbit_mirror_queue_master, MasterState, RateTRef, - AckTags, Deliveries, MTC), - {become, rabbit_amqqueue_process, QueueState, hibernate}. - -noreply(State) -> - {NewState, Timeout} = next_state(State), - {noreply, NewState, Timeout}. - -reply(Reply, State) -> - {NewState, Timeout} = next_state(State), - {reply, Reply, NewState, Timeout}. - -next_state(State = #state{backing_queue = BQ, backing_queue_state = BQS}) -> - {MsgIds, BQS1} = BQ:drain_confirmed(BQS), - State1 = ensure_rate_timer( - confirm_messages(MsgIds, State #state { - backing_queue_state = BQS1 })), - case BQ:needs_timeout(BQS1) of - false -> {stop_sync_timer(State1), hibernate}; - idle -> {stop_sync_timer(State1), 0 }; - timed -> {ensure_sync_timer(State1), 0 } - end. - -backing_queue_timeout(State = #state { backing_queue = BQ }) -> - run_backing_queue(BQ, fun (M, BQS) -> M:timeout(BQS) end, State). - -ensure_sync_timer(State = #state { sync_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after( - ?SYNC_INTERVAL, rabbit_amqqueue, sync_timeout, [self()]), - State #state { sync_timer_ref = TRef }; -ensure_sync_timer(State) -> - State. - -stop_sync_timer(State = #state { sync_timer_ref = undefined }) -> - State; -stop_sync_timer(State = #state { sync_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #state { sync_timer_ref = undefined }. - -ensure_rate_timer(State = #state { rate_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), - State #state { rate_timer_ref = TRef }; -ensure_rate_timer(State = #state { rate_timer_ref = just_measured }) -> - State #state { rate_timer_ref = undefined }; -ensure_rate_timer(State) -> - State. - -stop_rate_timer(State = #state { rate_timer_ref = undefined }) -> - State; -stop_rate_timer(State = #state { rate_timer_ref = just_measured }) -> - State #state { rate_timer_ref = undefined }; -stop_rate_timer(State = #state { rate_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #state { rate_timer_ref = undefined }. - -ensure_monitoring(ChPid, State = #state { known_senders = KS }) -> - case dict:is_key(ChPid, KS) of - true -> State; - false -> MRef = erlang:monitor(process, ChPid), - State #state { known_senders = dict:store(ChPid, MRef, KS) } - end. - -local_sender_death(ChPid, State = #state { known_senders = KS }) -> - ok = case dict:is_key(ChPid, KS) of - false -> ok; - true -> confirm_sender_death(ChPid) - end, - State. - -confirm_sender_death(Pid) -> - %% We have to deal with the possibility that we'll be promoted to - %% master before this thing gets run. Consequently we set the - %% module to rabbit_mirror_queue_master so that if we do become a - %% rabbit_amqqueue_process before then, sane things will happen. - Fun = - fun (?MODULE, State = #state { known_senders = KS, - gm = GM }) -> - %% We're running still as a slave - ok = case dict:is_key(Pid, KS) of - false -> ok; - true -> gm:broadcast(GM, {ensure_monitoring, [Pid]}), - confirm_sender_death(Pid) - end, - State; - (rabbit_mirror_queue_master, State) -> - %% We've become a master. State is now opaque to - %% us. When we became master, if Pid was still known - %% to us then we'd have set up monitoring of it then, - %% so this is now a noop. - State - end, - %% Note that we do not remove our knowledge of this ChPid until we - %% get the sender_death from GM. - {ok, _TRef} = timer:apply_after( - ?DEATH_TIMEOUT, rabbit_amqqueue, run_backing_queue, - [self(), rabbit_mirror_queue_master, Fun]), - ok. - -maybe_enqueue_message( - Delivery = #delivery { message = #basic_message { id = MsgId }, - msg_seq_no = MsgSeqNo, - sender = ChPid }, - EnqueueOnPromotion, - State = #state { sender_queues = SQ, msg_id_status = MS }) -> - State1 = ensure_monitoring(ChPid, State), - %% We will never see {published, ChPid, MsgSeqNo} here. - case dict:find(MsgId, MS) of - error -> - {MQ, PendingCh} = get_sender_queue(ChPid, SQ), - MQ1 = queue:in({Delivery, EnqueueOnPromotion}, MQ), - SQ1 = dict:store(ChPid, {MQ1, PendingCh}, SQ), - State1 #state { sender_queues = SQ1 }; - {ok, {confirmed, ChPid}} -> - %% BQ has confirmed it but we didn't know what the - %% msg_seq_no was at the time. We do now! - ok = rabbit_channel:confirm(ChPid, [MsgSeqNo]), - SQ1 = remove_from_pending_ch(MsgId, ChPid, SQ), - State1 #state { sender_queues = SQ1, - msg_id_status = dict:erase(MsgId, MS) }; - {ok, {published, ChPid}} -> - %% It was published to the BQ and we didn't know the - %% msg_seq_no so couldn't confirm it at the time. - case needs_confirming(Delivery, State1) of - never -> - SQ1 = remove_from_pending_ch(MsgId, ChPid, SQ), - State1 #state { msg_id_status = dict:erase(MsgId, MS), - sender_queues = SQ1 }; - eventually -> - State1 #state { - msg_id_status = - dict:store(MsgId, {published, ChPid, MsgSeqNo}, MS) }; - immediately -> - ok = rabbit_channel:confirm(ChPid, [MsgSeqNo]), - SQ1 = remove_from_pending_ch(MsgId, ChPid, SQ), - State1 #state { msg_id_status = dict:erase(MsgId, MS), - sender_queues = SQ1 } - end; - {ok, discarded} -> - %% We've already heard from GM that the msg is to be - %% discarded. We won't see this again. - SQ1 = remove_from_pending_ch(MsgId, ChPid, SQ), - State1 #state { msg_id_status = dict:erase(MsgId, MS), - sender_queues = SQ1 } - end. - -get_sender_queue(ChPid, SQ) -> - case dict:find(ChPid, SQ) of - error -> {queue:new(), sets:new()}; - {ok, Val} -> Val - end. - -remove_from_pending_ch(MsgId, ChPid, SQ) -> - case dict:find(ChPid, SQ) of - error -> - SQ; - {ok, {MQ, PendingCh}} -> - dict:store(ChPid, {MQ, sets:del_element(MsgId, PendingCh)}, SQ) - end. - -process_instruction( - {publish, Deliver, ChPid, MsgProps, Msg = #basic_message { id = MsgId }}, - State = #state { sender_queues = SQ, - backing_queue = BQ, - backing_queue_state = BQS, - msg_id_status = MS }) -> - - %% We really are going to do the publish right now, even though we - %% may not have seen it directly from the channel. As a result, we - %% may know that it needs confirming without knowing its - %% msg_seq_no, which means that we can see the confirmation come - %% back from the backing queue without knowing the msg_seq_no, - %% which means that we're going to have to hang on to the fact - %% that we've seen the msg_id confirmed until we can associate it - %% with a msg_seq_no. - State1 = ensure_monitoring(ChPid, State), - {MQ, PendingCh} = get_sender_queue(ChPid, SQ), - {MQ1, PendingCh1, MS1} = - case queue:out(MQ) of - {empty, _MQ2} -> - {MQ, sets:add_element(MsgId, PendingCh), - dict:store(MsgId, {published, ChPid}, MS)}; - {{value, {Delivery = #delivery { - msg_seq_no = MsgSeqNo, - message = #basic_message { id = MsgId } }, - _EnqueueOnPromotion}}, MQ2} -> - %% We received the msg from the channel first. Thus we - %% need to deal with confirms here. - case needs_confirming(Delivery, State1) of - never -> - {MQ2, PendingCh, MS}; - eventually -> - {MQ2, sets:add_element(MsgId, PendingCh), - dict:store(MsgId, {published, ChPid, MsgSeqNo}, MS)}; - immediately -> - ok = rabbit_channel:confirm(ChPid, [MsgSeqNo]), - {MQ2, PendingCh, MS} - end; - {{value, {#delivery {}, _EnqueueOnPromotion}}, _MQ2} -> - %% The instruction was sent to us before we were - %% within the slave_pids within the #amqqueue{} - %% record. We'll never receive the message directly - %% from the channel. And the channel will not be - %% expecting any confirms from us. - {MQ, PendingCh, MS} - end, - - SQ1 = dict:store(ChPid, {MQ1, PendingCh1}, SQ), - State2 = State1 #state { sender_queues = SQ1, msg_id_status = MS1 }, - - {ok, - case Deliver of - false -> - BQS1 = BQ:publish(Msg, MsgProps, ChPid, BQS), - State2 #state { backing_queue_state = BQS1 }; - {true, AckRequired} -> - {AckTag, BQS1} = BQ:publish_delivered(AckRequired, Msg, MsgProps, - ChPid, BQS), - maybe_store_ack(AckRequired, MsgId, AckTag, - State2 #state { backing_queue_state = BQS1 }) - end}; -process_instruction({discard, ChPid, Msg = #basic_message { id = MsgId }}, - State = #state { sender_queues = SQ, - backing_queue = BQ, - backing_queue_state = BQS, - msg_id_status = MS }) -> - %% Many of the comments around the publish head above apply here - %% too. - State1 = ensure_monitoring(ChPid, State), - {MQ, PendingCh} = get_sender_queue(ChPid, SQ), - {MQ1, PendingCh1, MS1} = - case queue:out(MQ) of - {empty, _MQ} -> - {MQ, sets:add_element(MsgId, PendingCh), - dict:store(MsgId, discarded, MS)}; - {{value, {#delivery { message = #basic_message { id = MsgId } }, - _EnqueueOnPromotion}}, MQ2} -> - %% We've already seen it from the channel, we're not - %% going to see this again, so don't add it to MS - {MQ2, PendingCh, MS}; - {{value, {#delivery {}, _EnqueueOnPromotion}}, _MQ2} -> - %% The instruction was sent to us before we were - %% within the slave_pids within the #amqqueue{} - %% record. We'll never receive the message directly - %% from the channel. - {MQ, PendingCh, MS} - end, - SQ1 = dict:store(ChPid, {MQ1, PendingCh1}, SQ), - BQS1 = BQ:discard(Msg, ChPid, BQS), - {ok, State1 #state { sender_queues = SQ1, - msg_id_status = MS1, - backing_queue_state = BQS1 }}; -process_instruction({set_length, Length}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - QLen = BQ:len(BQS), - ToDrop = QLen - Length, - {ok, case ToDrop > 0 of - true -> BQS1 = - lists:foldl( - fun (const, BQSN) -> - {{_Msg, _IsDelivered, _AckTag, _Remaining}, - BQSN1} = BQ:fetch(false, BQSN), - BQSN1 - end, BQS, lists:duplicate(ToDrop, const)), - State #state { backing_queue_state = BQS1 }; - false -> State - end}; -process_instruction({fetch, AckRequired, MsgId, Remaining}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - QLen = BQ:len(BQS), - {ok, case QLen - 1 of - Remaining -> - {{#basic_message{id = MsgId}, _IsDelivered, - AckTag, Remaining}, BQS1} = BQ:fetch(AckRequired, BQS), - maybe_store_ack(AckRequired, MsgId, AckTag, - State #state { backing_queue_state = BQS1 }); - Other when Other < Remaining -> - %% we must be shorter than the master - State - end}; -process_instruction({ack, MsgIds}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS, - msg_id_ack = MA }) -> - {AckTags, MA1} = msg_ids_to_acktags(MsgIds, MA), - {MsgIds1, BQS1} = BQ:ack(AckTags, BQS), - [] = MsgIds1 -- MsgIds, %% ASSERTION - {ok, State #state { msg_id_ack = MA1, - backing_queue_state = BQS1 }}; -process_instruction({requeue, MsgPropsFun, MsgIds}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS, - msg_id_ack = MA }) -> - {AckTags, MA1} = msg_ids_to_acktags(MsgIds, MA), - {ok, case length(AckTags) =:= length(MsgIds) of - true -> - {MsgIds, BQS1} = BQ:requeue(AckTags, MsgPropsFun, BQS), - State #state { msg_id_ack = MA1, - backing_queue_state = BQS1 }; - false -> - %% The only thing we can safely do is nuke out our BQ - %% and MA. The interaction between this and confirms - %% doesn't really bear thinking about... - {_Count, BQS1} = BQ:purge(BQS), - {_MsgIds, BQS2} = ack_all(BQ, MA, BQS1), - State #state { msg_id_ack = dict:new(), - backing_queue_state = BQS2 } - end}; -process_instruction({sender_death, ChPid}, - State = #state { sender_queues = SQ, - msg_id_status = MS, - known_senders = KS }) -> - {ok, case dict:find(ChPid, KS) of - error -> - State; - {ok, MRef} -> - true = erlang:demonitor(MRef), - MS1 = case dict:find(ChPid, SQ) of - error -> - MS; - {ok, {_MQ, PendingCh}} -> - lists:foldl(fun dict:erase/2, MS, - sets:to_list(PendingCh)) - end, - State #state { sender_queues = dict:erase(ChPid, SQ), - msg_id_status = MS1, - known_senders = dict:erase(ChPid, KS) } - end}; -process_instruction({delete_and_terminate, Reason}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - BQ:delete_and_terminate(Reason, BQS), - {stop, State #state { backing_queue_state = undefined }}. - -msg_ids_to_acktags(MsgIds, MA) -> - {AckTags, MA1} = - lists:foldl( - fun (MsgId, {Acc, MAN}) -> - case dict:find(MsgId, MA) of - error -> {Acc, MAN}; - {ok, {_Num, AckTag}} -> {[AckTag | Acc], - dict:erase(MsgId, MAN)} - end - end, {[], MA}, MsgIds), - {lists:reverse(AckTags), MA1}. - -ack_all(BQ, MA, BQS) -> - BQ:ack([AckTag || {_MsgId, {_Num, AckTag}} <- dict:to_list(MA)], BQS). - -maybe_store_ack(false, _MsgId, _AckTag, State) -> - State; -maybe_store_ack(true, MsgId, AckTag, State = #state { msg_id_ack = MA, - ack_num = Num }) -> - State #state { msg_id_ack = dict:store(MsgId, {Num, AckTag}, MA), - ack_num = Num + 1 }. diff --git a/src/rabbit_mirror_queue_slave_sup.erl b/src/rabbit_mirror_queue_slave_sup.erl deleted file mode 100644 index fc04ec79..00000000 --- a/src/rabbit_mirror_queue_slave_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2010-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_mirror_queue_slave_sup). - --behaviour(supervisor2). - --export([start/0, start_link/0, start_child/2]). - --export([init/1]). - --include_lib("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start() -> - {ok, _} = - supervisor2:start_child( - rabbit_sup, - {rabbit_mirror_queue_slave_sup, - {rabbit_mirror_queue_slave_sup, start_link, []}, - transient, infinity, supervisor, [rabbit_mirror_queue_slave_sup]}), - ok. - -start_link() -> - supervisor2:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Node, Args) -> - supervisor2:start_child({?SERVER, Node}, Args). - -init([]) -> - {ok, {{simple_one_for_one_terminate, 10, 10}, - [{rabbit_mirror_queue_slave, - {rabbit_mirror_queue_slave, start_link, []}, - temporary, ?MAX_WAIT, worker, [rabbit_mirror_queue_slave]}]}}. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl deleted file mode 100644 index 3bbfb1d7..00000000 --- a/src/rabbit_misc.erl +++ /dev/null @@ -1,944 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_misc). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --include_lib("kernel/include/file.hrl"). - --export([method_record_type/1, polite_pause/0, polite_pause/1]). --export([die/1, frame_error/2, amqp_error/4, - protocol_error/3, protocol_error/4, protocol_error/1]). --export([not_found/1, assert_args_equivalence/4]). --export([dirty_read/1]). --export([table_lookup/2, set_table_value/4]). --export([r/3, r/2, r_arg/4, rs/1]). --export([enable_cover/0, report_cover/0]). --export([enable_cover/1, report_cover/1]). --export([start_cover/1]). --export([throw_on_error/2, with_exit_handler/2, filter_exit_map/2]). --export([with_user/2, with_user_and_vhost/3]). --export([execute_mnesia_transaction/1]). --export([execute_mnesia_transaction/2]). --export([execute_mnesia_tx_with_tail/1]). --export([ensure_ok/2]). --export([makenode/1, nodeparts/1, cookie_hash/0, tcp_name/3]). --export([upmap/2, map_in_order/2]). --export([table_filter/3]). --export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). --export([read_term_file/1, write_term_file/2, write_file/2, write_file/3]). --export([append_file/2, ensure_parent_dirs_exist/1]). --export([format_stderr/2]). --export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, queue_fold/3]). --export([sort_field_table/1]). --export([pid_to_string/1, string_to_pid/1]). --export([version_compare/2, version_compare/3]). --export([recursive_delete/1, recursive_copy/2, dict_cons/3, orddict_cons/3]). --export([get_options/2]). --export([all_module_attributes/1, build_acyclic_graph/3]). --export([now_ms/0]). --export([lock_file/1]). --export([const_ok/0, const/1]). --export([ntoa/1, ntoab/1]). --export([is_process_alive/1]). --export([pget/2, pget/3, pget_or_die/2]). --export([format_message_queue/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([resource_name/0, thunk/1]). - --type(ok_or_error() :: rabbit_types:ok_or_error(any())). --type(thunk(T) :: fun(() -> T)). --type(resource_name() :: binary()). --type(optdef() :: {flag, string()} | {option, string(), any()}). --type(channel_or_connection_exit() - :: rabbit_types:channel_exit() | rabbit_types:connection_exit()). --type(digraph_label() :: term()). --type(graph_vertex_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph_label()}])). --type(graph_edge_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph:vertex()}])). - --spec(method_record_type/1 :: (rabbit_framing:amqp_method_record()) - -> rabbit_framing:amqp_method_name()). --spec(polite_pause/0 :: () -> 'done'). --spec(polite_pause/1 :: (non_neg_integer()) -> 'done'). --spec(die/1 :: - (rabbit_framing:amqp_exception()) -> channel_or_connection_exit()). --spec(frame_error/2 :: (rabbit_framing:amqp_method_name(), binary()) - -> rabbit_types:connection_exit()). --spec(amqp_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) - -> rabbit_types:amqp_error()). --spec(protocol_error/3 :: (rabbit_framing:amqp_exception(), string(), [any()]) - -> channel_or_connection_exit()). --spec(protocol_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) -> channel_or_connection_exit()). --spec(protocol_error/1 :: - (rabbit_types:amqp_error()) -> channel_or_connection_exit()). --spec(not_found/1 :: (rabbit_types:r(atom())) -> rabbit_types:channel_exit()). --spec(assert_args_equivalence/4 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table(), - rabbit_types:r(any()), [binary()]) -> - 'ok' | rabbit_types:connection_exit()). --spec(dirty_read/1 :: - ({atom(), any()}) -> rabbit_types:ok_or_error2(any(), 'not_found')). --spec(table_lookup/2 :: - (rabbit_framing:amqp_table(), binary()) - -> 'undefined' | {rabbit_framing:amqp_field_type(), any()}). --spec(set_table_value/4 :: - (rabbit_framing:amqp_table(), binary(), - rabbit_framing:amqp_field_type(), rabbit_framing:amqp_value()) - -> rabbit_framing:amqp_table()). - --spec(r/2 :: (rabbit_types:vhost(), K) - -> rabbit_types:r3(rabbit_types:vhost(), K, '_') - when is_subtype(K, atom())). --spec(r/3 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, resource_name()) - -> rabbit_types:r3(rabbit_types:vhost(), K, resource_name()) - when is_subtype(K, atom())). --spec(r_arg/4 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, - rabbit_framing:amqp_table(), binary()) - -> undefined | rabbit_types:r(K) - when is_subtype(K, atom())). --spec(rs/1 :: (rabbit_types:r(atom())) -> string()). --spec(enable_cover/0 :: () -> ok_or_error()). --spec(start_cover/1 :: ([{string(), string()} | string()]) -> 'ok'). --spec(report_cover/0 :: () -> 'ok'). --spec(enable_cover/1 :: ([file:filename() | atom()]) -> ok_or_error()). --spec(report_cover/1 :: ([file:filename() | atom()]) -> 'ok'). --spec(throw_on_error/2 :: - (atom(), thunk(rabbit_types:error(any()) | {ok, A} | A)) -> A). --spec(with_exit_handler/2 :: (thunk(A), thunk(A)) -> A). --spec(filter_exit_map/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(with_user/2 :: (rabbit_types:username(), thunk(A)) -> A). --spec(with_user_and_vhost/3 :: - (rabbit_types:username(), rabbit_types:vhost(), thunk(A)) - -> A). --spec(execute_mnesia_transaction/1 :: (thunk(A)) -> A). --spec(execute_mnesia_transaction/2 :: - (thunk(A), fun ((A, boolean()) -> B)) -> B). --spec(execute_mnesia_tx_with_tail/1 :: - (thunk(fun ((boolean()) -> B))) -> B | (fun ((boolean()) -> B))). --spec(ensure_ok/2 :: (ok_or_error(), atom()) -> 'ok'). --spec(makenode/1 :: ({string(), string()} | string()) -> node()). --spec(nodeparts/1 :: (node() | string()) -> {string(), string()}). --spec(cookie_hash/0 :: () -> string()). --spec(tcp_name/3 :: - (atom(), inet:ip_address(), rabbit_networking:ip_port()) - -> atom()). --spec(upmap/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(map_in_order/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(table_filter/3:: (fun ((A) -> boolean()), fun ((A, boolean()) -> 'ok'), - atom()) -> [A]). --spec(dirty_read_all/1 :: (atom()) -> [any()]). --spec(dirty_foreach_key/2 :: (fun ((any()) -> any()), atom()) - -> 'ok' | 'aborted'). --spec(dirty_dump_log/1 :: (file:filename()) -> ok_or_error()). --spec(read_term_file/1 :: - (file:filename()) -> {'ok', [any()]} | rabbit_types:error(any())). --spec(write_term_file/2 :: (file:filename(), [any()]) -> ok_or_error()). --spec(write_file/2 :: (file:filename(), iodata()) -> ok_or_error()). --spec(write_file/3 :: (file:filename(), iodata(), [any()]) -> ok_or_error()). --spec(append_file/2 :: (file:filename(), string()) -> ok_or_error()). --spec(ensure_parent_dirs_exist/1 :: (string()) -> 'ok'). --spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). --spec(start_applications/1 :: ([atom()]) -> 'ok'). --spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> integer()). --spec(queue_fold/3 :: (fun ((any(), B) -> B), B, queue()) -> B). --spec(sort_field_table/1 :: - (rabbit_framing:amqp_table()) -> rabbit_framing:amqp_table()). --spec(pid_to_string/1 :: (pid()) -> string()). --spec(string_to_pid/1 :: (string()) -> pid()). --spec(version_compare/2 :: (string(), string()) -> 'lt' | 'eq' | 'gt'). --spec(version_compare/3 :: - (string(), string(), ('lt' | 'lte' | 'eq' | 'gte' | 'gt')) - -> boolean()). --spec(recursive_delete/1 :: - ([file:filename()]) - -> rabbit_types:ok_or_error({file:filename(), any()})). --spec(recursive_copy/2 :: - (file:filename(), file:filename()) - -> rabbit_types:ok_or_error({file:filename(), file:filename(), any()})). --spec(dict_cons/3 :: (any(), any(), dict()) -> dict()). --spec(orddict_cons/3 :: (any(), any(), orddict:orddict()) -> orddict:orddict()). --spec(get_options/2 :: ([optdef()], [string()]) - -> {[string()], [{string(), any()}]}). --spec(all_module_attributes/1 :: (atom()) -> [{atom(), [term()]}]). --spec(build_acyclic_graph/3 :: - (graph_vertex_fun(), graph_edge_fun(), [{atom(), [term()]}]) - -> rabbit_types:ok_or_error2(digraph(), - {'vertex', 'duplicate', digraph:vertex()} | - {'edge', ({bad_vertex, digraph:vertex()} | - {bad_edge, [digraph:vertex()]}), - digraph:vertex(), digraph:vertex()})). --spec(now_ms/0 :: () -> non_neg_integer()). --spec(lock_file/1 :: (file:filename()) -> rabbit_types:ok_or_error('eexist')). --spec(const_ok/0 :: () -> 'ok'). --spec(const/1 :: (A) -> thunk(A)). --spec(ntoa/1 :: (inet:ip_address()) -> string()). --spec(ntoab/1 :: (inet:ip_address()) -> string()). --spec(is_process_alive/1 :: (pid()) -> boolean()). --spec(pget/2 :: (term(), [term()]) -> term()). --spec(pget/3 :: (term(), [term()], term()) -> term()). --spec(pget_or_die/2 :: (term(), [term()]) -> term() | no_return()). --spec(format_message_queue/2 :: (any(), priority_queue:q()) -> term()). - --endif. - -%%---------------------------------------------------------------------------- - -method_record_type(Record) -> - element(1, Record). - -polite_pause() -> - polite_pause(3000). - -polite_pause(N) -> - receive - after N -> done - end. - -die(Error) -> - protocol_error(Error, "~w", [Error]). - -frame_error(MethodName, BinaryFields) -> - protocol_error(frame_error, "cannot decode ~w", [BinaryFields], MethodName). - -amqp_error(Name, ExplanationFormat, Params, Method) -> - Explanation = lists:flatten(io_lib:format(ExplanationFormat, Params)), - #amqp_error{name = Name, explanation = Explanation, method = Method}. - -protocol_error(Name, ExplanationFormat, Params) -> - protocol_error(Name, ExplanationFormat, Params, none). - -protocol_error(Name, ExplanationFormat, Params, Method) -> - protocol_error(amqp_error(Name, ExplanationFormat, Params, Method)). - -protocol_error(#amqp_error{} = Error) -> - exit(Error). - -not_found(R) -> protocol_error(not_found, "no ~s", [rs(R)]). - -assert_args_equivalence(Orig, New, Name, Keys) -> - [assert_args_equivalence1(Orig, New, Name, Key) || Key <- Keys], - ok. - -assert_args_equivalence1(Orig, New, Name, Key) -> - case {table_lookup(Orig, Key), table_lookup(New, Key)} of - {Same, Same} -> ok; - {Orig1, New1} -> protocol_error( - precondition_failed, - "inequivalent arg '~s' for ~s: " - "received ~s but current is ~s", - [Key, rs(Name), val(New1), val(Orig1)]) - end. - -val(undefined) -> - "none"; -val({Type, Value}) -> - Fmt = case is_binary(Value) of - true -> "the value '~s' of type '~s'"; - false -> "the value '~w' of type '~s'" - end, - lists:flatten(io_lib:format(Fmt, [Value, Type])). - -dirty_read(ReadSpec) -> - case mnesia:dirty_read(ReadSpec) of - [Result] -> {ok, Result}; - [] -> {error, not_found} - end. - -table_lookup(Table, Key) -> - case lists:keysearch(Key, 1, Table) of - {value, {_, TypeBin, ValueBin}} -> {TypeBin, ValueBin}; - false -> undefined - end. - -set_table_value(Table, Key, Type, Value) -> - sort_field_table( - lists:keystore(Key, 1, Table, {Key, Type, Value})). - -r(#resource{virtual_host = VHostPath}, Kind, Name) - when is_binary(Name) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}; -r(VHostPath, Kind, Name) when is_binary(Name) andalso is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}. - -r(VHostPath, Kind) when is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = '_'}. - -r_arg(#resource{virtual_host = VHostPath}, Kind, Table, Key) -> - r_arg(VHostPath, Kind, Table, Key); -r_arg(VHostPath, Kind, Table, Key) -> - case table_lookup(Table, Key) of - {longstr, NameBin} -> r(VHostPath, Kind, NameBin); - undefined -> undefined - end. - -rs(#resource{virtual_host = VHostPath, kind = Kind, name = Name}) -> - lists:flatten(io_lib:format("~s '~s' in vhost '~s'", - [Kind, Name, VHostPath])). - -enable_cover() -> enable_cover(["."]). - -enable_cover(Dirs) -> - lists:foldl(fun (Dir, ok) -> - case cover:compile_beam_directory( - filename:join(lists:concat([Dir]),"ebin")) of - {error, _} = Err -> Err; - _ -> ok - end; - (_Dir, Err) -> - Err - end, ok, Dirs). - -start_cover(NodesS) -> - {ok, _} = cover:start([makenode(N) || N <- NodesS]), - ok. - -report_cover() -> report_cover(["."]). - -report_cover(Dirs) -> [report_cover1(lists:concat([Dir])) || Dir <- Dirs], ok. - -report_cover1(Root) -> - Dir = filename:join(Root, "cover"), - ok = filelib:ensure_dir(filename:join(Dir, "junk")), - lists:foreach(fun (F) -> file:delete(F) end, - filelib:wildcard(filename:join(Dir, "*.html"))), - {ok, SummaryFile} = file:open(filename:join(Dir, "summary.txt"), [write]), - {CT, NCT} = - lists:foldl( - fun (M,{CovTot, NotCovTot}) -> - {ok, {M, {Cov, NotCov}}} = cover:analyze(M, module), - ok = report_coverage_percentage(SummaryFile, - Cov, NotCov, M), - {ok,_} = cover:analyze_to_file( - M, - filename:join(Dir, atom_to_list(M) ++ ".html"), - [html]), - {CovTot+Cov, NotCovTot+NotCov} - end, - {0, 0}, - lists:sort(cover:modules())), - ok = report_coverage_percentage(SummaryFile, CT, NCT, 'TOTAL'), - ok = file:close(SummaryFile), - ok. - -report_coverage_percentage(File, Cov, NotCov, Mod) -> - io:fwrite(File, "~6.2f ~p~n", - [if - Cov+NotCov > 0 -> 100.0*Cov/(Cov+NotCov); - true -> 100.0 - end, - Mod]). - -throw_on_error(E, Thunk) -> - case Thunk() of - {error, Reason} -> throw({E, Reason}); - {ok, Res} -> Res; - Res -> Res - end. - -with_exit_handler(Handler, Thunk) -> - try - Thunk() - catch - exit:{R, _} when R =:= noproc; R =:= nodedown; - R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - Handler() - end. - -filter_exit_map(F, L) -> - Ref = make_ref(), - lists:filter(fun (R) -> R =/= Ref end, - [with_exit_handler( - fun () -> Ref end, - fun () -> F(I) end) || I <- L]). - -with_user(Username, Thunk) -> - fun () -> - case mnesia:read({rabbit_user, Username}) of - [] -> - mnesia:abort({no_such_user, Username}); - [_U] -> - Thunk() - end - end. - -with_user_and_vhost(Username, VHostPath, Thunk) -> - with_user(Username, rabbit_vhost:with(VHostPath, Thunk)). - -execute_mnesia_transaction(TxFun) -> - %% Making this a sync_transaction allows us to use dirty_read - %% elsewhere and get a consistent result even when that read - %% executes on a different node. - case worker_pool:submit({mnesia, sync_transaction, [TxFun]}) of - {atomic, Result} -> Result; - {aborted, Reason} -> throw({error, Reason}) - end. - - -%% Like execute_mnesia_transaction/1 with additional Pre- and Post- -%% commit function -execute_mnesia_transaction(TxFun, PrePostCommitFun) -> - case mnesia:is_transaction() of - true -> throw(unexpected_transaction); - false -> ok - end, - PrePostCommitFun(execute_mnesia_transaction( - fun () -> - Result = TxFun(), - PrePostCommitFun(Result, true), - Result - end), false). - -%% Like execute_mnesia_transaction/2, but TxFun is expected to return a -%% TailFun which gets called (only) immediately after the tx commit -execute_mnesia_tx_with_tail(TxFun) -> - case mnesia:is_transaction() of - true -> execute_mnesia_transaction(TxFun); - false -> TailFun = execute_mnesia_transaction(TxFun), - TailFun() - end. - -ensure_ok(ok, _) -> ok; -ensure_ok({error, Reason}, ErrorTag) -> throw({error, {ErrorTag, Reason}}). - -makenode({Prefix, Suffix}) -> - list_to_atom(lists:append([Prefix, "@", Suffix])); -makenode(NodeStr) -> - makenode(nodeparts(NodeStr)). - -nodeparts(Node) when is_atom(Node) -> - nodeparts(atom_to_list(Node)); -nodeparts(NodeStr) -> - case lists:splitwith(fun (E) -> E =/= $@ end, NodeStr) of - {Prefix, []} -> {_, Suffix} = nodeparts(node()), - {Prefix, Suffix}; - {Prefix, Suffix} -> {Prefix, tl(Suffix)} - end. - -cookie_hash() -> - base64:encode_to_string(erlang:md5(atom_to_list(erlang:get_cookie()))). - -tcp_name(Prefix, IPAddress, Port) - when is_atom(Prefix) andalso is_number(Port) -> - list_to_atom( - lists:flatten( - io_lib:format("~w_~s:~w", - [Prefix, inet_parse:ntoa(IPAddress), Port]))). - -%% This is a modified version of Luke Gorrie's pmap - -%% http://lukego.livejournal.com/6753.html - that doesn't care about -%% the order in which results are received. -%% -%% WARNING: This is is deliberately lightweight rather than robust -- if F -%% throws, upmap will hang forever, so make sure F doesn't throw! -upmap(F, L) -> - Parent = self(), - Ref = make_ref(), - [receive {Ref, Result} -> Result end - || _ <- [spawn(fun () -> Parent ! {Ref, F(X)} end) || X <- L]]. - -map_in_order(F, L) -> - lists:reverse( - lists:foldl(fun (E, Acc) -> [F(E) | Acc] end, [], L)). - -%% Apply a pre-post-commit function to all entries in a table that -%% satisfy a predicate, and return those entries. -%% -%% We ignore entries that have been modified or removed. -table_filter(Pred, PrePostCommitFun, TableName) -> - lists:foldl( - fun (E, Acc) -> - case execute_mnesia_transaction( - fun () -> mnesia:match_object(TableName, E, read) =/= [] - andalso Pred(E) end, - fun (false, _Tx) -> false; - (true, Tx) -> PrePostCommitFun(E, Tx), true - end) of - false -> Acc; - true -> [E | Acc] - end - end, [], dirty_read_all(TableName)). - -dirty_read_all(TableName) -> - mnesia:dirty_select(TableName, [{'$1',[],['$1']}]). - -dirty_foreach_key(F, TableName) -> - dirty_foreach_key1(F, TableName, mnesia:dirty_first(TableName)). - -dirty_foreach_key1(_F, _TableName, '$end_of_table') -> - ok; -dirty_foreach_key1(F, TableName, K) -> - case catch mnesia:dirty_next(TableName, K) of - {'EXIT', _} -> - aborted; - NextKey -> - F(K), - dirty_foreach_key1(F, TableName, NextKey) - end. - -dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, - {mode, read_only}, - {file, FileName}]), - dirty_dump_log1(LH, disk_log:chunk(LH, start)), - disk_log:close(LH). - -dirty_dump_log1(_LH, eof) -> - io:format("Done.~n"); -dirty_dump_log1(LH, {K, Terms}) -> - io:format("Chunk: ~p~n", [Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)); -dirty_dump_log1(LH, {K, Terms, BadBytes}) -> - io:format("Bad Chunk, ~p: ~p~n", [BadBytes, Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)). - - -read_term_file(File) -> file:consult(File). - -write_term_file(File, Terms) -> - write_file(File, list_to_binary([io_lib:format("~w.~n", [Term]) || - Term <- Terms])). - -write_file(Path, Data) -> - write_file(Path, Data, []). - -%% write_file/3 and make_binary/1 are both based on corresponding -%% functions in the kernel/file.erl module of the Erlang R14B02 -%% release, which is licensed under the EPL. That implementation of -%% write_file/3 does not do an fsync prior to closing the file, hence -%% the existence of this version. APIs are otherwise identical. -write_file(Path, Data, Modes) -> - Modes1 = [binary, write | (Modes -- [binary, write])], - case make_binary(Data) of - Bin when is_binary(Bin) -> - case file:open(Path, Modes1) of - {ok, Hdl} -> try file:write(Hdl, Bin) of - ok -> file:sync(Hdl); - {error, _} = E -> E - after - file:close(Hdl) - end; - {error, _} = E -> E - end; - {error, _} = E -> E - end. - -make_binary(Bin) when is_binary(Bin) -> - Bin; -make_binary(List) -> - try - iolist_to_binary(List) - catch error:Reason -> - {error, Reason} - end. - - -append_file(File, Suffix) -> - case file:read_file_info(File) of - {ok, FInfo} -> append_file(File, FInfo#file_info.size, Suffix); - {error, enoent} -> append_file(File, 0, Suffix); - Error -> Error - end. - -append_file(_, _, "") -> - ok; -append_file(File, 0, Suffix) -> - case file:open([File, Suffix], [append]) of - {ok, Fd} -> file:close(Fd); - Error -> Error - end; -append_file(File, _, Suffix) -> - case file:read_file(File) of - {ok, Data} -> write_file([File, Suffix], Data, [append]); - Error -> Error - end. - -ensure_parent_dirs_exist(Filename) -> - case filelib:ensure_dir(Filename) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_parent_dirs, Filename, Reason}}) - end. - -format_stderr(Fmt, Args) -> - case os:type() of - {unix, _} -> - Port = open_port({fd, 0, 2}, [out]), - port_command(Port, io_lib:format(Fmt, Args)), - port_close(Port); - {win32, _} -> - %% stderr on Windows is buffered and I can't figure out a - %% way to trigger a fflush(stderr) in Erlang. So rather - %% than risk losing output we write to stdout instead, - %% which appears to be unbuffered. - io:format(Fmt, Args) - end, - ok. - -manage_applications(Iterate, Do, Undo, SkipError, ErrorTag, Apps) -> - Iterate(fun (App, Acc) -> - case Do(App) of - ok -> [App | Acc]; - {error, {SkipError, _}} -> Acc; - {error, Reason} -> - lists:foreach(Undo, Acc), - throw({error, {ErrorTag, App, Reason}}) - end - end, [], Apps), - ok. - -start_applications(Apps) -> - manage_applications(fun lists:foldl/3, - fun application:start/1, - fun application:stop/1, - already_started, - cannot_start_application, - Apps). - -stop_applications(Apps) -> - manage_applications(fun lists:foldr/3, - fun application:stop/1, - fun application:start/1, - not_started, - cannot_stop_application, - Apps). - -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N == T of - true -> T; - false -> 1 + T - end. - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -%% Sorts a list of AMQP table fields as per the AMQP spec -sort_field_table(Arguments) -> - lists:keysort(1, Arguments). - -%% This provides a string representation of a pid that is the same -%% regardless of what node we are running on. The representation also -%% permits easy identification of the pid's node. -pid_to_string(Pid) when is_pid(Pid) -> - %% see http://erlang.org/doc/apps/erts/erl_ext_dist.html (8.10 and - %% 8.7) - <<131,103,100,NodeLen:16,NodeBin:NodeLen/binary,Id:32,Ser:32,Cre:8>> - = term_to_binary(Pid), - Node = binary_to_term(<<131,100,NodeLen:16,NodeBin:NodeLen/binary>>), - lists:flatten(io_lib:format("<~w.~B.~B.~B>", [Node, Cre, Id, Ser])). - -%% inverse of above -string_to_pid(Str) -> - Err = {error, {invalid_pid_syntax, Str}}, - %% The \ before the trailing $ is only there to keep emacs - %% font-lock from getting confused. - case re:run(Str, "^<(.*)\\.(\\d+)\\.(\\d+)\\.(\\d+)>\$", - [{capture,all_but_first,list}]) of - {match, [NodeStr, CreStr, IdStr, SerStr]} -> - %% the NodeStr atom might be quoted, so we have to parse - %% it rather than doing a simple list_to_atom - NodeAtom = case erl_scan:string(NodeStr) of - {ok, [{atom, _, X}], _} -> X; - {error, _, _} -> throw(Err) - end, - <<131,NodeEnc/binary>> = term_to_binary(NodeAtom), - [Cre, Id, Ser] = lists:map(fun list_to_integer/1, - [CreStr, IdStr, SerStr]), - binary_to_term(<<131,103,NodeEnc/binary,Id:32,Ser:32,Cre:8>>); - nomatch -> - throw(Err) - end. - -version_compare(A, B, lte) -> - case version_compare(A, B) of - eq -> true; - lt -> true; - gt -> false - end; -version_compare(A, B, gte) -> - case version_compare(A, B) of - eq -> true; - gt -> true; - lt -> false - end; -version_compare(A, B, Result) -> - Result =:= version_compare(A, B). - -version_compare(A, A) -> - eq; -version_compare([], [$0 | B]) -> - version_compare([], dropdot(B)); -version_compare([], _) -> - lt; %% 2.3 < 2.3.1 -version_compare([$0 | A], []) -> - version_compare(dropdot(A), []); -version_compare(_, []) -> - gt; %% 2.3.1 > 2.3 -version_compare(A, B) -> - {AStr, ATl} = lists:splitwith(fun (X) -> X =/= $. end, A), - {BStr, BTl} = lists:splitwith(fun (X) -> X =/= $. end, B), - ANum = list_to_integer(AStr), - BNum = list_to_integer(BStr), - if ANum =:= BNum -> version_compare(dropdot(ATl), dropdot(BTl)); - ANum < BNum -> lt; - ANum > BNum -> gt - end. - -dropdot(A) -> lists:dropwhile(fun (X) -> X =:= $. end, A). - -recursive_delete(Files) -> - lists:foldl(fun (Path, ok ) -> recursive_delete1(Path); - (_Path, {error, _Err} = Error) -> Error - end, ok, Files). - -recursive_delete1(Path) -> - case filelib:is_dir(Path) of - false -> case file:delete(Path) of - ok -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Path, Err}} - end; - true -> case file:list_dir(Path) of - {ok, FileNames} -> - case lists:foldl( - fun (FileName, ok) -> - recursive_delete1( - filename:join(Path, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames) of - ok -> - case file:del_dir(Path) of - ok -> ok; - {error, Err} -> {error, {Path, Err}} - end; - {error, _Err} = Error -> - Error - end; - {error, Err} -> - {error, {Path, Err}} - end - end. - -recursive_copy(Src, Dest) -> - case filelib:is_dir(Src) of - false -> case file:copy(Src, Dest) of - {ok, _Bytes} -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Src, Dest, Err}} - end; - true -> case file:list_dir(Src) of - {ok, FileNames} -> - case file:make_dir(Dest) of - ok -> - lists:foldl( - fun (FileName, ok) -> - recursive_copy( - filename:join(Src, FileName), - filename:join(Dest, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames); - {error, Err} -> - {error, {Src, Dest, Err}} - end; - {error, Err} -> - {error, {Src, Dest, Err}} - end - end. - -dict_cons(Key, Value, Dict) -> - dict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -orddict_cons(Key, Value, Dict) -> - orddict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -%% Separate flags and options from arguments. -%% get_options([{flag, "-q"}, {option, "-p", "/"}], -%% ["set_permissions","-p","/","guest", -%% "-q",".*",".*",".*"]) -%% == {["set_permissions","guest",".*",".*",".*"], -%% [{"-q",true},{"-p","/"}]} -get_options(Defs, As) -> - lists:foldl(fun(Def, {AsIn, RsIn}) -> - {AsOut, Value} = case Def of - {flag, Key} -> - get_flag(Key, AsIn); - {option, Key, Default} -> - get_option(Key, Default, AsIn) - end, - {AsOut, [{Key, Value} | RsIn]} - end, {As, []}, Defs). - -get_option(K, _Default, [K, V | As]) -> - {As, V}; -get_option(K, Default, [Nk | As]) -> - {As1, V} = get_option(K, Default, As), - {[Nk | As1], V}; -get_option(_, Default, As) -> - {As, Default}. - -get_flag(K, [K | As]) -> - {As, true}; -get_flag(K, [Nk | As]) -> - {As1, V} = get_flag(K, As), - {[Nk | As1], V}; -get_flag(_, []) -> - {[], false}. - -now_ms() -> - timer:now_diff(now(), {0,0,0}) div 1000. - -module_attributes(Module) -> - case catch Module:module_info(attributes) of - {'EXIT', {undef, [{Module, module_info, _} | _]}} -> - io:format("WARNING: module ~p not found, so not scanned for boot steps.~n", - [Module]), - []; - {'EXIT', Reason} -> - exit(Reason); - V -> - V - end. - -all_module_attributes(Name) -> - Modules = - lists:usort( - lists:append( - [Modules || {App, _, _} <- application:loaded_applications(), - {ok, Modules} <- [application:get_key(App, modules)]])), - lists:foldl( - fun (Module, Acc) -> - case lists:append([Atts || {N, Atts} <- module_attributes(Module), - N =:= Name]) of - [] -> Acc; - Atts -> [{Module, Atts} | Acc] - end - end, [], Modules). - - -build_acyclic_graph(VertexFun, EdgeFun, Graph) -> - G = digraph:new([acyclic]), - try - [case digraph:vertex(G, Vertex) of - false -> digraph:add_vertex(G, Vertex, Label); - _ -> ok = throw({graph_error, {vertex, duplicate, Vertex}}) - end || {Module, Atts} <- Graph, - {Vertex, Label} <- VertexFun(Module, Atts)], - [case digraph:add_edge(G, From, To) of - {error, E} -> throw({graph_error, {edge, E, From, To}}); - _ -> ok - end || {Module, Atts} <- Graph, - {From, To} <- EdgeFun(Module, Atts)], - {ok, G} - catch {graph_error, Reason} -> - true = digraph:delete(G), - {error, Reason} - end. - -%% TODO: When we stop supporting Erlang prior to R14, this should be -%% replaced with file:open [write, exclusive] -lock_file(Path) -> - case filelib:is_file(Path) of - true -> {error, eexist}; - false -> {ok, Lock} = file:open(Path, [write]), - ok = file:close(Lock) - end. - -const_ok() -> ok. -const(X) -> fun () -> X end. - -%% Format IPv4-mapped IPv6 addresses as IPv4, since they're what we see -%% when IPv6 is enabled but not used (i.e. 99% of the time). -ntoa({0,0,0,0,0,16#ffff,AB,CD}) -> - inet_parse:ntoa({AB bsr 8, AB rem 256, CD bsr 8, CD rem 256}); -ntoa(IP) -> - inet_parse:ntoa(IP). - -ntoab(IP) -> - Str = ntoa(IP), - case string:str(Str, ":") of - 0 -> Str; - _ -> "[" ++ Str ++ "]" - end. - -is_process_alive(Pid) when node(Pid) =:= node() -> - erlang:is_process_alive(Pid); -is_process_alive(Pid) -> - case rpc:call(node(Pid), erlang, is_process_alive, [Pid]) of - true -> true; - _ -> false - end. - -pget(K, P) -> proplists:get_value(K, P). -pget(K, P, D) -> proplists:get_value(K, P, D). - -pget_or_die(K, P) -> - case proplists:get_value(K, P) of - undefined -> exit({error, key_missing, K}); - V -> V - end. - -format_message_queue(_Opt, MQ) -> - Len = priority_queue:len(MQ), - {Len, - case Len > 100 of - false -> priority_queue:to_list(MQ); - true -> {summary, - orddict:to_list( - lists:foldl( - fun ({P, V}, Counts) -> - orddict:update_counter( - {P, format_message_queue_entry(V)}, 1, Counts) - end, orddict:new(), priority_queue:to_list(MQ)))} - end}. - -format_message_queue_entry(V) when is_atom(V) -> - V; -format_message_queue_entry(V) when is_tuple(V) -> - list_to_tuple([format_message_queue_entry(E) || E <- tuple_to_list(V)]); -format_message_queue_entry(_V) -> - '_'. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl deleted file mode 100644 index ab553a8b..00000000 --- a/src/rabbit_mnesia.erl +++ /dev/null @@ -1,746 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - --module(rabbit_mnesia). - --export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/1, force_cluster/1, reset/0, force_reset/0, init_db/3, - is_clustered/0, running_clustered_nodes/0, all_clustered_nodes/0, - empty_ram_only_tables/0, copy_db/1, wait_for_tables/1, - create_cluster_nodes_config/1, read_cluster_nodes_config/0, - record_running_nodes/0, read_previously_running_nodes/0, - delete_previously_running_nodes/0, running_nodes_filename/0, - is_disc_node/0]). - --export([table_names/0]). - -%% create_tables/0 exported for helping embed RabbitMQ in or alongside -%% other mnesia-using Erlang applications, such as ejabberd --export([create_tables/0]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([node_type/0]). - --type(node_type() :: disc_only | disc | ram | unknown). --spec(status/0 :: () -> [{'nodes', [{node_type(), [node()]}]} | - {'running_nodes', [node()]}]). --spec(dir/0 :: () -> file:filename()). --spec(ensure_mnesia_dir/0 :: () -> 'ok'). --spec(init/0 :: () -> 'ok'). --spec(init_db/3 :: ([node()], boolean(), rabbit_misc:thunk('ok')) -> 'ok'). --spec(is_db_empty/0 :: () -> boolean()). --spec(cluster/1 :: ([node()]) -> 'ok'). --spec(force_cluster/1 :: ([node()]) -> 'ok'). --spec(cluster/2 :: ([node()], boolean()) -> 'ok'). --spec(reset/0 :: () -> 'ok'). --spec(force_reset/0 :: () -> 'ok'). --spec(is_clustered/0 :: () -> boolean()). --spec(running_clustered_nodes/0 :: () -> [node()]). --spec(all_clustered_nodes/0 :: () -> [node()]). --spec(empty_ram_only_tables/0 :: () -> 'ok'). --spec(create_tables/0 :: () -> 'ok'). --spec(copy_db/1 :: (file:filename()) -> rabbit_types:ok_or_error(any())). --spec(wait_for_tables/1 :: ([atom()]) -> 'ok'). --spec(create_cluster_nodes_config/1 :: ([node()]) -> 'ok'). --spec(read_cluster_nodes_config/0 :: () -> [node()]). --spec(record_running_nodes/0 :: () -> 'ok'). --spec(read_previously_running_nodes/0 :: () -> [node()]). --spec(delete_previously_running_nodes/0 :: () -> 'ok'). --spec(running_nodes_filename/0 :: () -> file:filename()). --spec(is_disc_node/0 :: () -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - -status() -> - [{nodes, case mnesia:system_info(is_running) of - yes -> [{Key, Nodes} || - {Key, CopyType} <- [{disc_only, disc_only_copies}, - {disc, disc_copies}, - {ram, ram_copies}], - begin - Nodes = nodes_of_type(CopyType), - Nodes =/= [] - end]; - no -> case all_clustered_nodes() of - [] -> []; - Nodes -> [{unknown, Nodes}] - end - end}, - {running_nodes, running_clustered_nodes()}]. - -init() -> - ensure_mnesia_running(), - ensure_mnesia_dir(), - ok = init_db(read_cluster_nodes_config(), true, - fun maybe_upgrade_local_or_record_desired/0), - %% We intuitively expect the global name server to be synced when - %% Mnesia is up. In fact that's not guaranteed to be the case - let's - %% make it so. - ok = global:sync(), - ok. - -is_db_empty() -> - lists:all(fun (Tab) -> mnesia:dirty_first(Tab) == '$end_of_table' end, - table_names()). - -cluster(ClusterNodes) -> - cluster(ClusterNodes, false). -force_cluster(ClusterNodes) -> - cluster(ClusterNodes, true). - -%% Alter which disk nodes this node is clustered with. This can be a -%% subset of all the disk nodes in the cluster but can (and should) -%% include the node itself if it is to be a disk rather than a ram -%% node. If Force is false, only connections to online nodes are -%% allowed. -cluster(ClusterNodes, Force) -> - ensure_mnesia_not_running(), - ensure_mnesia_dir(), - - %% Wipe mnesia if we're changing type from disc to ram - case {is_disc_node(), should_be_disc_node(ClusterNodes)} of - {true, false} -> error_logger:warning_msg( - "changing node type; wiping mnesia...~n~n"), - rabbit_misc:ensure_ok(mnesia:delete_schema([node()]), - cannot_delete_schema); - _ -> ok - end, - - %% Pre-emptively leave the cluster - %% - %% We're trying to handle the following two cases: - %% 1. We have a two-node cluster, where both nodes are disc nodes. - %% One node is re-clustered as a ram node. When it tries to - %% re-join the cluster, but before it has time to update its - %% tables definitions, the other node will order it to re-create - %% its disc tables. So, we need to leave the cluster before we - %% can join it again. - %% 2. We have a two-node cluster, where both nodes are disc nodes. - %% One node is forcefully reset (so, the other node thinks its - %% still a part of the cluster). The reset node is re-clustered - %% as a ram node. Same as above, we need to leave the cluster - %% before we can join it. But, since we don't know if we're in a - %% cluster or not, we just pre-emptively leave it before joining. - ProperClusterNodes = ClusterNodes -- [node()], - try - ok = leave_cluster(ProperClusterNodes, ProperClusterNodes) - catch - {error, {no_running_cluster_nodes, _, _}} when Force -> - ok - end, - - %% Join the cluster - start_mnesia(), - try - ok = init_db(ClusterNodes, Force, - fun maybe_upgrade_local_or_record_desired/0), - ok = create_cluster_nodes_config(ClusterNodes) - after - stop_mnesia() - end, - ok. - -%% return node to its virgin state, where it is not member of any -%% cluster, has no cluster configuration, no local database, and no -%% persisted messages -reset() -> reset(false). -force_reset() -> reset(true). - -is_clustered() -> - RunningNodes = running_clustered_nodes(), - [node()] /= RunningNodes andalso [] /= RunningNodes. - -all_clustered_nodes() -> - mnesia:system_info(db_nodes). - -running_clustered_nodes() -> - mnesia:system_info(running_db_nodes). - -empty_ram_only_tables() -> - Node = node(), - lists:foreach( - fun (TabName) -> - case lists:member(Node, mnesia:table_info(TabName, ram_copies)) of - true -> {atomic, ok} = mnesia:clear_table(TabName); - false -> ok - end - end, table_names()), - ok. - -%%-------------------------------------------------------------------- - -nodes_of_type(Type) -> - %% This function should return the nodes of a certain type (ram, - %% disc or disc_only) in the current cluster. The type of nodes - %% is determined when the cluster is initially configured. - mnesia:table_info(schema, Type). - -%% The tables aren't supposed to be on disk on a ram node -table_definitions(disc) -> - table_definitions(); -table_definitions(ram) -> - [{Tab, copy_type_to_ram(TabDef)} || {Tab, TabDef} <- table_definitions()]. - -table_definitions() -> - [{rabbit_user, - [{record_name, internal_user}, - {attributes, record_info(fields, internal_user)}, - {disc_copies, [node()]}, - {match, #internal_user{_='_'}}]}, - {rabbit_user_permission, - [{record_name, user_permission}, - {attributes, record_info(fields, user_permission)}, - {disc_copies, [node()]}, - {match, #user_permission{user_vhost = #user_vhost{_='_'}, - permission = #permission{_='_'}, - _='_'}}]}, - {rabbit_vhost, - [{record_name, vhost}, - {attributes, record_info(fields, vhost)}, - {disc_copies, [node()]}, - {match, #vhost{_='_'}}]}, - {rabbit_listener, - [{record_name, listener}, - {attributes, record_info(fields, listener)}, - {type, bag}, - {match, #listener{_='_'}}]}, - {rabbit_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {disc_copies, [node()]}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_semi_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_reverse_route, - [{record_name, reverse_route}, - {attributes, record_info(fields, reverse_route)}, - {type, ordered_set}, - {match, #reverse_route{reverse_binding = reverse_binding_match(), - _='_'}}]}, - {rabbit_topic_trie_edge, - [{record_name, topic_trie_edge}, - {attributes, record_info(fields, topic_trie_edge)}, - {type, ordered_set}, - {match, #topic_trie_edge{trie_edge = trie_edge_match(), _='_'}}]}, - {rabbit_topic_trie_binding, - [{record_name, topic_trie_binding}, - {attributes, record_info(fields, topic_trie_binding)}, - {type, ordered_set}, - {match, #topic_trie_binding{trie_binding = trie_binding_match(), - _='_'}}]}, - {rabbit_durable_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {disc_copies, [node()]}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_exchange_serial, - [{record_name, exchange_serial}, - {attributes, record_info(fields, exchange_serial)}, - {match, #exchange_serial{name = exchange_name_match(), _='_'}}]}, - {rabbit_durable_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {disc_copies, [node()]}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}, - {rabbit_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}] - ++ gm:table_definitions(). - -binding_match() -> - #binding{source = exchange_name_match(), - destination = binding_destination_match(), - _='_'}. -reverse_binding_match() -> - #reverse_binding{destination = binding_destination_match(), - source = exchange_name_match(), - _='_'}. -binding_destination_match() -> - resource_match('_'). -trie_edge_match() -> - #trie_edge{exchange_name = exchange_name_match(), - _='_'}. -trie_binding_match() -> - #trie_binding{exchange_name = exchange_name_match(), - _='_'}. -exchange_name_match() -> - resource_match(exchange). -queue_name_match() -> - resource_match(queue). -resource_match(Kind) -> - #resource{kind = Kind, _='_'}. - -table_names() -> - [Tab || {Tab, _} <- table_definitions()]. - -replicated_table_names() -> - [Tab || {Tab, TabDef} <- table_definitions(), - not lists:member({local_content, true}, TabDef) - ]. - -dir() -> mnesia:system_info(directory). - -ensure_mnesia_dir() -> - MnesiaDir = dir() ++ "/", - case filelib:ensure_dir(MnesiaDir) of - {error, Reason} -> - throw({error, {cannot_create_mnesia_dir, MnesiaDir, Reason}}); - ok -> - ok - end. - -ensure_mnesia_running() -> - case mnesia:system_info(is_running) of - yes -> ok; - no -> throw({error, mnesia_not_running}) - end. - -ensure_mnesia_not_running() -> - case mnesia:system_info(is_running) of - no -> ok; - yes -> throw({error, mnesia_unexpectedly_running}) - end. - -ensure_schema_integrity() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - throw({error, {schema_integrity_check_failed, Reason}}) - end. - -check_schema_integrity() -> - Tables = mnesia:system_info(tables), - case check_tables(fun (Tab, TabDef) -> - case lists:member(Tab, Tables) of - false -> {error, {table_missing, Tab}}; - true -> check_table_attributes(Tab, TabDef) - end - end) of - ok -> ok = wait_for_tables(), - check_tables(fun check_table_content/2); - Other -> Other - end. - -check_table_attributes(Tab, TabDef) -> - {_, ExpAttrs} = proplists:lookup(attributes, TabDef), - case mnesia:table_info(Tab, attributes) of - ExpAttrs -> ok; - Attrs -> {error, {table_attributes_mismatch, Tab, ExpAttrs, Attrs}} - end. - -check_table_content(Tab, TabDef) -> - {_, Match} = proplists:lookup(match, TabDef), - case mnesia:dirty_first(Tab) of - '$end_of_table' -> - ok; - Key -> - ObjList = mnesia:dirty_read(Tab, Key), - MatchComp = ets:match_spec_compile([{Match, [], ['$_']}]), - case ets:match_spec_run(ObjList, MatchComp) of - ObjList -> ok; - _ -> {error, {table_content_invalid, Tab, Match, ObjList}} - end - end. - -check_tables(Fun) -> - case [Error || {Tab, TabDef} <- table_definitions( - case is_disc_node() of - true -> disc; - false -> ram - end), - case Fun(Tab, TabDef) of - ok -> Error = none, false; - {error, Error} -> true - end] of - [] -> ok; - Errors -> {error, Errors} - end. - -%% The cluster node config file contains some or all of the disk nodes -%% that are members of the cluster this node is / should be a part of. -%% -%% If the file is absent, the list is empty, or only contains the -%% current node, then the current node is a standalone (disk) -%% node. Otherwise it is a node that is part of a cluster as either a -%% disk node, if it appears in the cluster node config, or ram node if -%% it doesn't. - -cluster_nodes_config_filename() -> - dir() ++ "/cluster_nodes.config". - -create_cluster_nodes_config(ClusterNodes) -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:write_term_file(FileName, [ClusterNodes]) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_cluster_nodes_config, - FileName, Reason}}) - end. - -read_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - {ok, ClusterNodes} = application:get_env(rabbit, cluster_nodes), - ClusterNodes; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - FileName, Reason}}) - end. - -delete_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> - throw({error, {cannot_delete_cluster_nodes_config, - FileName, Reason}}) - end. - -running_nodes_filename() -> - filename:join(dir(), "nodes_running_at_shutdown"). - -record_running_nodes() -> - FileName = running_nodes_filename(), - Nodes = running_clustered_nodes() -- [node()], - %% Don't check the result: we're shutting down anyway and this is - %% a best-effort-basis. - rabbit_misc:write_term_file(FileName, [Nodes]), - ok. - -read_previously_running_nodes() -> - FileName = running_nodes_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [Nodes]} -> Nodes; - {error, enoent} -> []; - {error, Reason} -> throw({error, {cannot_read_previous_nodes_file, - FileName, Reason}}) - end. - -delete_previously_running_nodes() -> - FileName = running_nodes_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> throw({error, {cannot_delete_previous_nodes_file, - FileName, Reason}}) - end. - -%% Take a cluster node config and create the right kind of node - a -%% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. If Force is false, don't allow -%% connections to offline nodes. -init_db(ClusterNodes, Force, SecondaryPostMnesiaFun) -> - UClusterNodes = lists:usort(ClusterNodes), - ProperClusterNodes = UClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ProperClusterNodes) of - {ok, Nodes} -> - case Force of - false -> FailedClusterNodes = ProperClusterNodes -- Nodes, - case FailedClusterNodes of - [] -> ok; - _ -> throw({error, {failed_to_cluster_with, - FailedClusterNodes, - "Mnesia could not connect " - "to some nodes."}}) - end; - true -> ok - end, - WantDiscNode = should_be_disc_node(ClusterNodes), - WasDiscNode = is_disc_node(), - %% We create a new db (on disk, or in ram) in the first - %% two cases and attempt to upgrade the in the other two - case {Nodes, WasDiscNode, WantDiscNode} of - {[], _, false} -> - %% New ram node; start from scratch - ok = create_schema(ram); - {[], false, true} -> - %% Nothing there at all, start from scratch - ok = create_schema(disc); - {[], true, true} -> - %% We're the first node up - case rabbit_upgrade:maybe_upgrade_local() of - ok -> ensure_schema_integrity(); - version_not_available -> ok = schema_ok_or_move() - end; - {[AnotherNode|_], _, _} -> - %% Subsequent node in cluster, catch up - ensure_version_ok( - rpc:call(AnotherNode, rabbit_version, recorded, [])), - {CopyType, CopyTypeAlt} = - case WantDiscNode of - true -> {disc, disc_copies}; - false -> {ram, ram_copies} - end, - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, CopyTypeAlt), - ok = create_local_table_copies(CopyType), - - ok = SecondaryPostMnesiaFun(), - %% We've taken down mnesia, so ram nodes will need - %% to re-sync - case is_disc_node() of - false -> start_mnesia(), - mnesia:change_config(extra_db_nodes, - ProperClusterNodes), - wait_for_replicated_tables(); - true -> ok - end, - - ensure_schema_integrity(), - ok - end; - {error, Reason} -> - %% one reason we may end up here is if we try to join - %% nodes together that are currently running standalone or - %% are members of a different cluster - throw({error, {unable_to_join_cluster, ClusterNodes, Reason}}) - end. - -maybe_upgrade_local_or_record_desired() -> - case rabbit_upgrade:maybe_upgrade_local() of - ok -> ok; - %% If we're just starting up a new node we won't have a - %% version - version_not_available -> ok = rabbit_version:record_desired() - end. - -schema_ok_or_move() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - %% NB: we cannot use rabbit_log here since it may not have been - %% started yet - error_logger:warning_msg("schema integrity check failed: ~p~n" - "moving database to backup location " - "and recreating schema from scratch~n", - [Reason]), - ok = move_db(), - ok = create_schema(disc) - end. - -ensure_version_ok({ok, DiscVersion}) -> - DesiredVersion = rabbit_version:desired(), - case rabbit_version:matches(DesiredVersion, DiscVersion) of - true -> ok; - false -> throw({error, {version_mismatch, DesiredVersion, DiscVersion}}) - end; -ensure_version_ok({error, _}) -> - ok = rabbit_version:record_desired(). - -create_schema(Type) -> - stop_mnesia(), - case Type of - disc -> rabbit_misc:ensure_ok(mnesia:create_schema([node()]), - cannot_create_schema); - ram -> %% remove the disc schema since this is a ram node - rabbit_misc:ensure_ok(mnesia:delete_schema([node()]), - cannot_delete_schema) - end, - start_mnesia(), - ok = create_tables(Type), - ensure_schema_integrity(), - ok = rabbit_version:record_desired(). - -is_disc_node() -> mnesia:system_info(use_dir). - -should_be_disc_node(ClusterNodes) -> - ClusterNodes == [] orelse lists:member(node(), ClusterNodes). - -move_db() -> - stop_mnesia(), - MnesiaDir = filename:dirname(dir() ++ "/"), - {{Year, Month, Day}, {Hour, Minute, Second}} = erlang:universaltime(), - BackupDir = lists:flatten( - io_lib:format("~s_~w~2..0w~2..0w~2..0w~2..0w~2..0w", - [MnesiaDir, - Year, Month, Day, Hour, Minute, Second])), - case file:rename(MnesiaDir, BackupDir) of - ok -> - %% NB: we cannot use rabbit_log here since it may not have - %% been started yet - error_logger:warning_msg("moved database from ~s to ~s~n", - [MnesiaDir, BackupDir]), - ok; - {error, Reason} -> throw({error, {cannot_backup_mnesia, - MnesiaDir, BackupDir, Reason}}) - end, - ensure_mnesia_dir(), - start_mnesia(), - ok. - -copy_db(Destination) -> - ok = ensure_mnesia_not_running(), - rabbit_misc:recursive_copy(dir(), Destination). - -create_tables() -> create_tables(disc). - -create_tables(Type) -> - lists:foreach(fun ({Tab, TabDef}) -> - TabDef1 = proplists:delete(match, TabDef), - case mnesia:create_table(Tab, TabDef1) of - {atomic, ok} -> ok; - {aborted, Reason} -> - throw({error, {table_creation_failed, - Tab, TabDef1, Reason}}) - end - end, - table_definitions(Type)), - ok. - -copy_type_to_ram(TabDef) -> - [{disc_copies, []}, {ram_copies, [node()]} - | proplists:delete(ram_copies, proplists:delete(disc_copies, TabDef))]. - -table_has_copy_type(TabDef, DiscType) -> - lists:member(node(), proplists:get_value(DiscType, TabDef, [])). - -create_local_table_copies(Type) -> - lists:foreach( - fun ({Tab, TabDef}) -> - HasDiscCopies = table_has_copy_type(TabDef, disc_copies), - HasDiscOnlyCopies = table_has_copy_type(TabDef, disc_only_copies), - LocalTab = proplists:get_bool(local_content, TabDef), - StorageType = - if - Type =:= disc orelse LocalTab -> - if - HasDiscCopies -> disc_copies; - HasDiscOnlyCopies -> disc_only_copies; - true -> ram_copies - end; -%%% unused code - commented out to keep dialyzer happy -%%% Type =:= disc_only -> -%%% if -%%% HasDiscCopies or HasDiscOnlyCopies -> -%%% disc_only_copies; -%%% true -> ram_copies -%%% end; - Type =:= ram -> - ram_copies - end, - ok = create_local_table_copy(Tab, StorageType) - end, - table_definitions(Type)), - ok. - -create_local_table_copy(Tab, Type) -> - StorageType = mnesia:table_info(Tab, storage_type), - {atomic, ok} = - if - StorageType == unknown -> - mnesia:add_table_copy(Tab, node(), Type); - StorageType /= Type -> - mnesia:change_table_copy_type(Tab, node(), Type); - true -> {atomic, ok} - end, - ok. - -wait_for_replicated_tables() -> wait_for_tables(replicated_table_names()). - -wait_for_tables() -> wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> - case mnesia:wait_for_tables(TableNames, 30000) of - ok -> - ok; - {timeout, BadTabs} -> - throw({error, {timeout_waiting_for_tables, BadTabs}}); - {error, Reason} -> - throw({error, {failed_waiting_for_tables, Reason}}) - end. - -reset(Force) -> - ensure_mnesia_not_running(), - Node = node(), - case Force of - true -> ok; - false -> - ensure_mnesia_dir(), - start_mnesia(), - {Nodes, RunningNodes} = - try - ok = init(), - {all_clustered_nodes() -- [Node], - running_clustered_nodes() -- [Node]} - after - stop_mnesia() - end, - leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) - end, - ok = delete_cluster_nodes_config(), - %% remove persisted messages and any other garbage we find - ok = rabbit_misc:recursive_delete(filelib:wildcard(dir() ++ "/*")), - ok. - -leave_cluster([], _) -> ok; -leave_cluster(Nodes, RunningNodes) -> - %% find at least one running cluster node and instruct it to - %% remove our schema copy which will in turn result in our node - %% being removed as a cluster node from the schema, with that - %% change being propagated to all nodes - case lists:any( - fun (Node) -> - case rpc:call(Node, mnesia, del_table_copy, - [schema, node()]) of - {atomic, ok} -> true; - {badrpc, nodedown} -> false; - {aborted, {node_not_running, _}} -> false; - {aborted, Reason} -> - throw({error, {failed_to_leave_cluster, - Nodes, RunningNodes, Reason}}) - end - end, - RunningNodes) of - true -> ok; - false -> throw({error, {no_running_cluster_nodes, - Nodes, RunningNodes}}) - end. - -start_mnesia() -> - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ensure_mnesia_running(). - -stop_mnesia() -> - stopped = mnesia:stop(), - ensure_mnesia_not_running(). diff --git a/src/rabbit_msg_file.erl b/src/rabbit_msg_file.erl deleted file mode 100644 index b7de27d4..00000000 --- a/src/rabbit_msg_file.erl +++ /dev/null @@ -1,125 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_file). - --export([append/3, read/2, scan/4]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_MARKER, 255). --define(FILE_PACKING_ADJUSTMENT, (1 + ?INTEGER_SIZE_BYTES)). --define(MSG_ID_SIZE_BYTES, 16). --define(MSG_ID_SIZE_BITS, (8 * ?MSG_ID_SIZE_BYTES)). --define(SCAN_BLOCK_SIZE, 4194304). %% 4MB - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(io_device() :: any()). --type(position() :: non_neg_integer()). --type(msg_size() :: non_neg_integer()). --type(file_size() :: non_neg_integer()). --type(message_accumulator(A) :: - fun (({rabbit_types:msg_id(), msg_size(), position(), binary()}, A) -> - A)). - --spec(append/3 :: (io_device(), rabbit_types:msg_id(), msg()) -> - rabbit_types:ok_or_error2(msg_size(), any())). --spec(read/2 :: (io_device(), msg_size()) -> - rabbit_types:ok_or_error2({rabbit_types:msg_id(), msg()}, - any())). --spec(scan/4 :: (io_device(), file_size(), message_accumulator(A), A) -> - {'ok', A, position()}). - --endif. - -%%---------------------------------------------------------------------------- - -append(FileHdl, MsgId, MsgBody) - when is_binary(MsgId) andalso size(MsgId) =:= ?MSG_ID_SIZE_BYTES -> - MsgBodyBin = term_to_binary(MsgBody), - MsgBodyBinSize = size(MsgBodyBin), - Size = MsgBodyBinSize + ?MSG_ID_SIZE_BYTES, - case file_handle_cache:append(FileHdl, - <>) of - ok -> {ok, Size + ?FILE_PACKING_ADJUSTMENT}; - KO -> KO - end. - -read(FileHdl, TotalSize) -> - Size = TotalSize - ?FILE_PACKING_ADJUSTMENT, - BodyBinSize = Size - ?MSG_ID_SIZE_BYTES, - case file_handle_cache:read(FileHdl, TotalSize) of - {ok, <>} -> - {ok, {MsgId, binary_to_term(MsgBodyBin)}}; - KO -> KO - end. - -scan(FileHdl, FileSize, Fun, Acc) when FileSize >= 0 -> - scan(FileHdl, FileSize, <<>>, 0, 0, Fun, Acc). - -scan(_FileHdl, FileSize, _Data, FileSize, ScanOffset, _Fun, Acc) -> - {ok, Acc, ScanOffset}; -scan(FileHdl, FileSize, Data, ReadOffset, ScanOffset, Fun, Acc) -> - Read = lists:min([?SCAN_BLOCK_SIZE, (FileSize - ReadOffset)]), - case file_handle_cache:read(FileHdl, Read) of - {ok, Data1} -> - {Data2, Acc1, ScanOffset1} = - scanner(<>, ScanOffset, Fun, Acc), - ReadOffset1 = ReadOffset + size(Data1), - scan(FileHdl, FileSize, Data2, ReadOffset1, ScanOffset1, Fun, Acc1); - _KO -> - {ok, Acc, ScanOffset} - end. - -scanner(<<>>, Offset, _Fun, Acc) -> - {<<>>, Acc, Offset}; -scanner(<<0:?INTEGER_SIZE_BITS, _Rest/binary>>, Offset, _Fun, Acc) -> - {<<>>, Acc, Offset}; %% Nothing to do other than stop. -scanner(<>, Offset, Fun, Acc) -> - TotalSize = Size + ?FILE_PACKING_ADJUSTMENT, - case WriteMarker of - ?WRITE_OK_MARKER -> - %% Here we take option 5 from - %% http://www.erlang.org/cgi-bin/ezmlm-cgi?2:mss:1569 in - %% which we read the MsgId as a number, and then convert it - %% back to a binary in order to work around bugs in - %% Erlang's GC. - <> = - <>, - <> = - <>, - scanner(Rest, Offset + TotalSize, Fun, - Fun({MsgId, TotalSize, Offset, Msg}, Acc)); - _ -> - scanner(Rest, Offset + TotalSize, Fun, Acc) - end; -scanner(Data, Offset, _Fun, Acc) -> - {Data, Acc, Offset}. diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl deleted file mode 100644 index 27de1f77..00000000 --- a/src/rabbit_msg_store.erl +++ /dev/null @@ -1,1944 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store). - --behaviour(gen_server2). - --export([start_link/4, successfully_recovered_state/1, - client_init/4, client_terminate/1, client_delete_and_terminate/1, - client_ref/1, close_all_indicated/1, - write/3, read/2, contains/2, remove/2, sync/3]). - --export([sync/1, set_maximum_since_use/2, - has_readers/2, combine_files/3, delete_file/2]). %% internal - --export([transform_dir/3, force_recovery/2]). %% upgrade - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_call/3, prioritise_cast/2, - format_message_queue/2]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(CLEAN_FILENAME, "clean.dot"). --define(FILE_SUMMARY_FILENAME, "file_summary.ets"). --define(TRANSFORM_TMP, "transform_tmp"). - --define(BINARY_MODE, [raw, binary]). --define(READ_MODE, [read]). --define(READ_AHEAD_MODE, [read_ahead | ?READ_MODE]). --define(WRITE_MODE, [write]). - --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). - --define(HANDLE_CACHE_BUFFER_SIZE, 1048576). %% 1MB - -%%---------------------------------------------------------------------------- - --record(msstate, - { dir, %% store directory - index_module, %% the module for index ops - index_state, %% where are messages? - current_file, %% current file name as number - current_file_handle, %% current file handle since the last fsync? - file_handle_cache, %% file handle cache - on_sync, %% pending sync requests - sync_timer_ref, %% TRef for our interval timer - sum_valid_data, %% sum of valid data in all files - sum_file_size, %% sum of file sizes - pending_gc_completion, %% things to do once GC completes - gc_pid, %% pid of our GC - file_handles_ets, %% tid of the shared file handles table - file_summary_ets, %% tid of the file summary table - cur_file_cache_ets, %% tid of current file cache table - dying_clients, %% set of dying clients - clients, %% map of references of all registered clients - %% to callbacks - successfully_recovered, %% boolean: did we recover state? - file_size_limit, %% how big are our files allowed to get? - cref_to_msg_ids %% client ref to synced messages mapping - }). - --record(client_msstate, - { server, - client_ref, - file_handle_cache, - index_state, - index_module, - dir, - gc_pid, - file_handles_ets, - file_summary_ets, - cur_file_cache_ets - }). - --record(file_summary, - {file, valid_total_size, left, right, file_size, locked, readers}). - --record(gc_state, - { dir, - index_module, - index_state, - file_summary_ets, - file_handles_ets, - msg_store - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([gc_state/0, file_num/0]). - --type(gc_state() :: #gc_state { dir :: file:filename(), - index_module :: atom(), - index_state :: any(), - file_summary_ets :: ets:tid(), - file_handles_ets :: ets:tid(), - msg_store :: server() - }). - --type(server() :: pid() | atom()). --type(client_ref() :: binary()). --type(file_num() :: non_neg_integer()). --type(client_msstate() :: #client_msstate { - server :: server(), - client_ref :: client_ref(), - file_handle_cache :: dict(), - index_state :: any(), - index_module :: atom(), - dir :: file:filename(), - gc_pid :: pid(), - file_handles_ets :: ets:tid(), - file_summary_ets :: ets:tid(), - cur_file_cache_ets :: ets:tid()}). --type(msg_ref_delta_gen(A) :: - fun ((A) -> 'finished' | - {rabbit_types:msg_id(), non_neg_integer(), A})). --type(maybe_msg_id_fun() :: 'undefined' | fun ((gb_set()) -> any())). --type(maybe_close_fds_fun() :: 'undefined' | fun (() -> 'ok')). --type(deletion_thunk() :: fun (() -> boolean())). - --spec(start_link/4 :: - (atom(), file:filename(), [binary()] | 'undefined', - {msg_ref_delta_gen(A), A}) -> rabbit_types:ok_pid_or_error()). --spec(successfully_recovered_state/1 :: (server()) -> boolean()). --spec(client_init/4 :: (server(), client_ref(), maybe_msg_id_fun(), - maybe_close_fds_fun()) -> client_msstate()). --spec(client_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_delete_and_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_ref/1 :: (client_msstate()) -> client_ref()). --spec(write/3 :: (rabbit_types:msg_id(), msg(), client_msstate()) -> 'ok'). --spec(read/2 :: (rabbit_types:msg_id(), client_msstate()) -> - {rabbit_types:ok(msg()) | 'not_found', client_msstate()}). --spec(contains/2 :: (rabbit_types:msg_id(), client_msstate()) -> boolean()). --spec(remove/2 :: ([rabbit_types:msg_id()], client_msstate()) -> 'ok'). --spec(sync/3 :: - ([rabbit_types:msg_id()], fun (() -> any()), client_msstate()) -> 'ok'). - --spec(sync/1 :: (server()) -> 'ok'). --spec(set_maximum_since_use/2 :: (server(), non_neg_integer()) -> 'ok'). --spec(has_readers/2 :: (non_neg_integer(), gc_state()) -> boolean()). --spec(combine_files/3 :: (non_neg_integer(), non_neg_integer(), gc_state()) -> - deletion_thunk()). --spec(delete_file/2 :: (non_neg_integer(), gc_state()) -> deletion_thunk()). --spec(force_recovery/2 :: (file:filename(), server()) -> 'ok'). --spec(transform_dir/3 :: (file:filename(), server(), - fun ((any()) -> (rabbit_types:ok_or_error2(msg(), any())))) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%% We run GC whenever (garbage / sum_file_size) > ?GARBAGE_FRACTION -%% It is not recommended to set this to < 0.5 --define(GARBAGE_FRACTION, 0.5). - -%% The components: -%% -%% Index: this is a mapping from MsgId to #msg_location{}: -%% {MsgId, RefCount, File, Offset, TotalSize} -%% By default, it's in ets, but it's also pluggable. -%% FileSummary: this is an ets table which maps File to #file_summary{}: -%% {File, ValidTotalSize, Left, Right, FileSize, Locked, Readers} -%% -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the Index); how much useful data is in each file and which files -%% are on the left and right of each other. This is the purpose of the -%% FileSummary ets table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file. This is needed for garbage collection. -%% -%% When we discover that a file is now empty, we delete it. When we -%% discover that it can be combined with the useful data in either its -%% left or right neighbour, and overall, across all the files, we have -%% ((the amount of garbage) / (the sum of all file sizes)) > -%% ?GARBAGE_FRACTION, we start a garbage collection run concurrently, -%% which will compact the two files together. This keeps disk -%% utilisation high and aids performance. We deliberately do this -%% lazily in order to prevent doing GC on files which are soon to be -%% emptied (and hence deleted) soon. -%% -%% Given the compaction between two files, the left file (i.e. elder -%% file) is considered the ultimate destination for the good data in -%% the right file. If necessary, the good data in the left file which -%% is fragmented throughout the file is written out to a temporary -%% file, then read back in to form a contiguous chunk of good data at -%% the start of the left file. Thus the left file is garbage collected -%% and compacted. Then the good data from the right file is copied -%% onto the end of the left file. Index and FileSummary tables are -%% updated. -%% -%% On non-clean startup, we scan the files we discover, dealing with -%% the possibilites of a crash having occured during a compaction -%% (this consists of tidyup - the compaction is deliberately designed -%% such that data is duplicated on disk rather than risking it being -%% lost), and rebuild the FileSummary ets table and Index. -%% -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten. -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). -%% -%% Messages are reference-counted. When a message with the same msg id -%% is written several times we only store it once, and only remove it -%% from the store when it has been removed the same number of times. -%% -%% The reference counts do not persist. Therefore the initialisation -%% function must be provided with a generator that produces ref count -%% deltas for all recovered messages. This is only used on startup -%% when the shutdown was non-clean. -%% -%% Read messages with a reference count greater than one are entered -%% into a message cache. The purpose of the cache is not especially -%% performance, though it can help there too, but prevention of memory -%% explosion. It ensures that as messages with a high reference count -%% are read from several processes they are read back as the same -%% binary object rather than multiples of identical binary -%% objects. -%% -%% Reads can be performed directly by clients without calling to the -%% server. This is safe because multiple file handles can be used to -%% read files. However, locking is used by the concurrent GC to make -%% sure that reads are not attempted from files which are in the -%% process of being garbage collected. -%% -%% When a message is removed, its reference count is decremented. Even -%% if the reference count becomes 0, its entry is not removed. This is -%% because in the event of the same message being sent to several -%% different queues, there is the possibility of one queue writing and -%% removing the message before other queues write it at all. Thus -%% accomodating 0-reference counts allows us to avoid unnecessary -%% writes here. Of course, there are complications: the file to which -%% the message has already been written could be locked pending -%% deletion or GC, which means we have to rewrite the message as the -%% original copy will now be lost. -%% -%% The server automatically defers reads, removes and contains calls -%% that occur which refer to files which are currently being -%% GC'd. Contains calls are only deferred in order to ensure they do -%% not overtake removes. -%% -%% The current file to which messages are being written has a -%% write-back cache. This is written to immediately by clients and can -%% be read from by clients too. This means that there are only ever -%% writes made to the current file, thus eliminating delays due to -%% flushing write buffers in order to be able to safely read from the -%% current file. The one exception to this is that on start up, the -%% cache is not populated with msgs found in the current file, and -%% thus in this case only, reads may have to come from the file -%% itself. The effect of this is that even if the msg_store process is -%% heavily overloaded, clients can still write and read messages with -%% very low latency and not block at all. -%% -%% Clients of the msg_store are required to register before using the -%% msg_store. This provides them with the necessary client-side state -%% to allow them to directly access the various caches and files. When -%% they terminate, they should deregister. They can do this by calling -%% either client_terminate/1 or client_delete_and_terminate/1. The -%% differences are: (a) client_terminate is synchronous. As a result, -%% if the msg_store is badly overloaded and has lots of in-flight -%% writes and removes to process, this will take some time to -%% return. However, once it does return, you can be sure that all the -%% actions you've issued to the msg_store have been processed. (b) Not -%% only is client_delete_and_terminate/1 asynchronous, but it also -%% permits writes and subsequent removes from the current -%% (terminating) client which are still in flight to be safely -%% ignored. Thus from the point of view of the msg_store itself, and -%% all from the same client: -%% -%% (T) = termination; (WN) = write of msg N; (RN) = remove of msg N -%% --> W1, W2, W1, R1, T, W3, R2, W2, R1, R2, R3, W4 --> -%% -%% The client obviously sent T after all the other messages (up to -%% W4), but because the msg_store prioritises messages, the T can be -%% promoted and thus received early. -%% -%% Thus at the point of the msg_store receiving T, we have messages 1 -%% and 2 with a refcount of 1. After T, W3 will be ignored because -%% it's an unknown message, as will R3, and W4. W2, R1 and R2 won't be -%% ignored because the messages that they refer to were already known -%% to the msg_store prior to T. However, it can be a little more -%% complex: after the first R2, the refcount of msg 2 is 0. At that -%% point, if a GC occurs or file deletion, msg 2 could vanish, which -%% would then mean that the subsequent W2 and R2 are then ignored. -%% -%% The use case then for client_delete_and_terminate/1 is if the -%% client wishes to remove everything it's written to the msg_store: -%% it issues removes for all messages it's written and not removed, -%% and then calls client_delete_and_terminate/1. At that point, any -%% in-flight writes (and subsequent removes) can be ignored, but -%% removes and writes for messages the msg_store already knows about -%% will continue to be processed normally (which will normally just -%% involve modifying the reference count, which is fast). Thus we save -%% disk bandwidth for writes which are going to be immediately removed -%% again by the the terminating client. -%% -%% We use a separate set to keep track of the dying clients in order -%% to keep that set, which is inspected on every write and remove, as -%% small as possible. Inspecting the set of all clients would degrade -%% performance with many healthy clients and few, if any, dying -%% clients, which is the typical case. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -start_link(Server, Dir, ClientRefs, StartupFunState) -> - gen_server2:start_link({local, Server}, ?MODULE, - [Server, Dir, ClientRefs, StartupFunState], - [{timeout, infinity}]). - -successfully_recovered_state(Server) -> - gen_server2:call(Server, successfully_recovered_state, infinity). - -client_init(Server, Ref, MsgOnDiskFun, CloseFDsFun) -> - {IState, IModule, Dir, GCPid, - FileHandlesEts, FileSummaryEts, CurFileCacheEts} = - gen_server2:call( - Server, {new_client_state, Ref, MsgOnDiskFun, CloseFDsFun}, infinity), - #client_msstate { server = Server, - client_ref = Ref, - file_handle_cache = dict:new(), - index_state = IState, - index_module = IModule, - dir = Dir, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts }. - -client_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_call(CState, {client_terminate, Ref}). - -client_delete_and_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_cast(CState, {client_dying, Ref}), - ok = server_cast(CState, {client_delete, Ref}). - -client_ref(#client_msstate { client_ref = Ref }) -> Ref. - -write(MsgId, Msg, - CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts, - client_ref = CRef }) -> - ok = update_msg_cache(CurFileCacheEts, MsgId, Msg), - ok = server_cast(CState, {write, CRef, MsgId}). - -read(MsgId, - CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts }) -> - %% Check the cur file cache - case ets:lookup(CurFileCacheEts, MsgId) of - [] -> - Defer = fun() -> {server_call(CState, {read, MsgId}), CState} end, - case index_lookup_positive_ref_count(MsgId, CState) of - not_found -> Defer(); - MsgLocation -> client_read1(MsgLocation, Defer, CState) - end; - [{MsgId, Msg, _CacheRefCount}] -> - {{ok, Msg}, CState} - end. - -contains(MsgId, CState) -> server_call(CState, {contains, MsgId}). -remove([], _CState) -> ok; -remove(MsgIds, CState = #client_msstate { client_ref = CRef }) -> - server_cast(CState, {remove, CRef, MsgIds}). -sync(MsgIds, K, CState) -> server_cast(CState, {sync, MsgIds, K}). - -sync(Server) -> - gen_server2:cast(Server, sync). - -set_maximum_since_use(Server, Age) -> - gen_server2:cast(Server, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- -%% Client-side-only helpers -%%---------------------------------------------------------------------------- - -server_call(#client_msstate { server = Server }, Msg) -> - gen_server2:call(Server, Msg, infinity). - -server_cast(#client_msstate { server = Server }, Msg) -> - gen_server2:cast(Server, Msg). - -client_read1(#msg_location { msg_id = MsgId, file = File } = MsgLocation, Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - case ets:lookup(FileSummaryEts, File) of - [] -> %% File has been GC'd and no longer exists. Go around again. - read(MsgId, CState); - [#file_summary { locked = Locked, right = Right }] -> - client_read2(Locked, Right, MsgLocation, Defer, CState) - end. - -client_read2(false, undefined, _MsgLocation, Defer, _CState) -> - %% Although we've already checked both caches and not found the - %% message there, the message is apparently in the - %% current_file. We can only arrive here if we are trying to read - %% a message which we have not written, which is very odd, so just - %% defer. - %% - %% OR, on startup, the cur_file_cache is not populated with the - %% contents of the current file, thus reads from the current file - %% will end up here and will need to be deferred. - Defer(); -client_read2(true, _Right, _MsgLocation, Defer, _CState) -> - %% Of course, in the mean time, the GC could have run and our msg - %% is actually in a different file, unlocked. However, defering is - %% the safest and simplest thing to do. - Defer(); -client_read2(false, _Right, - MsgLocation = #msg_location { msg_id = MsgId, file = File }, - Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - %% It's entirely possible that everything we're doing from here on - %% is for the wrong file, or a non-existent file, as a GC may have - %% finished. - safe_ets_update_counter( - FileSummaryEts, File, {#file_summary.readers, +1}, - fun (_) -> client_read3(MsgLocation, Defer, CState) end, - fun () -> read(MsgId, CState) end). - -client_read3(#msg_location { msg_id = MsgId, file = File }, Defer, - CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - gc_pid = GCPid, - client_ref = Ref }) -> - Release = - fun() -> ok = case ets:update_counter(FileSummaryEts, File, - {#file_summary.readers, -1}) of - 0 -> case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - rabbit_msg_store_gc:no_readers( - GCPid, File); - _ -> ok - end; - _ -> ok - end - end, - %% If a GC involving the file hasn't already started, it won't - %% start now. Need to check again to see if we've been locked in - %% the meantime, between lookup and update_counter (thus GC - %% started before our +1. In fact, it could have finished by now - %% too). - case ets:lookup(FileSummaryEts, File) of - [] -> %% GC has deleted our file, just go round again. - read(MsgId, CState); - [#file_summary { locked = true }] -> - %% If we get a badarg here, then the GC has finished and - %% deleted our file. Try going around again. Otherwise, - %% just defer. - %% - %% badarg scenario: we lookup, msg_store locks, GC starts, - %% GC ends, we +1 readers, msg_store ets:deletes (and - %% unlocks the dest) - try Release(), - Defer() - catch error:badarg -> read(MsgId, CState) - end; - [#file_summary { locked = false }] -> - %% Ok, we're definitely safe to continue - a GC involving - %% the file cannot start up now, and isn't running, so - %% nothing will tell us from now on to close the handle if - %% it's already open. - %% - %% Finally, we need to recheck that the msg is still at - %% the same place - it's possible an entire GC ran between - %% us doing the lookup and the +1 on the readers. (Same as - %% badarg scenario above, but we don't have a missing file - %% - we just have the /wrong/ file). - case index_lookup(MsgId, CState) of - #msg_location { file = File } = MsgLocation -> - %% Still the same file. - {ok, CState1} = close_all_indicated(CState), - %% We are now guaranteed that the mark_handle_open - %% call will either insert_new correctly, or will - %% fail, but find the value is open, not close. - mark_handle_open(FileHandlesEts, File, Ref), - %% Could the msg_store now mark the file to be - %% closed? No: marks for closing are issued only - %% when the msg_store has locked the file. - %% This will never be the current file - {Msg, CState2} = read_from_disk(MsgLocation, CState1), - Release(), %% this MUST NOT fail with badarg - {{ok, Msg}, CState2}; - #msg_location {} = MsgLocation -> %% different file! - Release(), %% this MUST NOT fail with badarg - client_read1(MsgLocation, Defer, CState); - not_found -> %% it seems not to exist. Defer, just to be sure. - try Release() %% this can badarg, same as locked case, above - catch error:badarg -> ok - end, - Defer() - end - end. - -clear_client(CRef, State = #msstate { cref_to_msg_ids = CTM, - dying_clients = DyingClients }) -> - State #msstate { cref_to_msg_ids = dict:erase(CRef, CTM), - dying_clients = sets:del_element(CRef, DyingClients) }. - - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([Server, BaseDir, ClientRefs, StartupFunState]) -> - process_flag(trap_exit, true), - - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - - Dir = filename:join(BaseDir, atom_to_list(Server)), - - {ok, IndexModule} = application:get_env(msg_store_index_module), - rabbit_log:info("~w: using ~p to provide index~n", [Server, IndexModule]), - - AttemptFileSummaryRecovery = - case ClientRefs of - undefined -> ok = rabbit_misc:recursive_delete([Dir]), - ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - false; - _ -> ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - recover_crashed_compactions(Dir) - end, - - %% if we found crashed compactions we trust neither the - %% file_summary nor the location index. Note the file_summary is - %% left empty here if it can't be recovered. - {FileSummaryRecovered, FileSummaryEts} = - recover_file_summary(AttemptFileSummaryRecovery, Dir), - - {CleanShutdown, IndexState, ClientRefs1} = - recover_index_and_client_refs(IndexModule, FileSummaryRecovered, - ClientRefs, Dir, Server), - Clients = dict:from_list( - [{CRef, {undefined, undefined}} || CRef <- ClientRefs1]), - %% CleanShutdown => msg location index and file_summary both - %% recovered correctly. - true = case {FileSummaryRecovered, CleanShutdown} of - {true, false} -> ets:delete_all_objects(FileSummaryEts); - _ -> true - end, - %% CleanShutdown <=> msg location index and file_summary both - %% recovered correctly. - - FileHandlesEts = ets:new(rabbit_msg_store_shared_file_handles, - [ordered_set, public]), - CurFileCacheEts = ets:new(rabbit_msg_store_cur_file, [set, public]), - - {ok, FileSizeLimit} = application:get_env(msg_store_file_size_limit), - - {ok, GCPid} = rabbit_msg_store_gc:start_link( - #gc_state { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - msg_store = self() - }), - - State = #msstate { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - current_file = 0, - current_file_handle = undefined, - file_handle_cache = dict:new(), - on_sync = [], - sync_timer_ref = undefined, - sum_valid_data = 0, - sum_file_size = 0, - pending_gc_completion = orddict:new(), - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - dying_clients = sets:new(), - clients = Clients, - successfully_recovered = CleanShutdown, - file_size_limit = FileSizeLimit, - cref_to_msg_ids = dict:new() - }, - - %% If we didn't recover the msg location index then we need to - %% rebuild it now. - {Offset, State1 = #msstate { current_file = CurFile }} = - build_index(CleanShutdown, StartupFunState, State), - - %% read is only needed so that we can seek - {ok, CurHdl} = open_file(Dir, filenum_to_name(CurFile), - [read | ?WRITE_MODE]), - {ok, Offset} = file_handle_cache:position(CurHdl, Offset), - ok = file_handle_cache:truncate(CurHdl), - - {ok, maybe_compact(State1 #msstate { current_file_handle = CurHdl }), - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - successfully_recovered_state -> 7; - {new_client_state, _Ref, _MODC, _CloseFDsFun} -> 7; - {read, _MsgId} -> 2; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - sync -> 8; - {combine_files, _Source, _Destination, _Reclaimed} -> 8; - {delete_file, _File, _Reclaimed} -> 8; - {set_maximum_since_use, _Age} -> 8; - {client_dying, _Pid} -> 7; - _ -> 0 - end. - -handle_call(successfully_recovered_state, _From, State) -> - reply(State #msstate.successfully_recovered, State); - -handle_call({new_client_state, CRef, MsgOnDiskFun, CloseFDsFun}, _From, - State = #msstate { dir = Dir, - index_state = IndexState, - index_module = IndexModule, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - gc_pid = GCPid }) -> - Clients1 = dict:store(CRef, {MsgOnDiskFun, CloseFDsFun}, Clients), - reply({IndexState, IndexModule, Dir, GCPid, FileHandlesEts, FileSummaryEts, - CurFileCacheEts}, State #msstate { clients = Clients1 }); - -handle_call({client_terminate, CRef}, _From, State) -> - reply(ok, clear_client(CRef, State)); - -handle_call({read, MsgId}, From, State) -> - State1 = read_message(MsgId, From, State), - noreply(State1); - -handle_call({contains, MsgId}, From, State) -> - State1 = contains_message(MsgId, From, State), - noreply(State1). - -handle_cast({client_dying, CRef}, - State = #msstate { dying_clients = DyingClients }) -> - DyingClients1 = sets:add_element(CRef, DyingClients), - noreply(write_message(CRef, <<>>, - State #msstate { dying_clients = DyingClients1 })); - -handle_cast({client_delete, CRef}, State = #msstate { clients = Clients }) -> - State1 = State #msstate { clients = dict:erase(CRef, Clients) }, - noreply(remove_message(CRef, CRef, clear_client(CRef, State1))); - -handle_cast({write, CRef, MsgId}, - State = #msstate { cur_file_cache_ets = CurFileCacheEts }) -> - true = 0 =< ets:update_counter(CurFileCacheEts, MsgId, {3, -1}), - [{MsgId, Msg, _CacheRefCount}] = ets:lookup(CurFileCacheEts, MsgId), - noreply( - case write_action(should_mask_action(CRef, MsgId, State), MsgId, State) of - {write, State1} -> - write_message(CRef, MsgId, Msg, State1); - {ignore, CurFile, State1 = #msstate { current_file = CurFile }} -> - State1; - {ignore, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), - State1; - {confirm, CurFile, State1 = #msstate { current_file = CurFile }}-> - record_pending_confirm(CRef, MsgId, State1); - {confirm, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), - update_pending_confirms( - fun (MsgOnDiskFun, CTM) -> - MsgOnDiskFun(gb_sets:singleton(MsgId), written), - CTM - end, CRef, State1) - end); - -handle_cast({remove, CRef, MsgIds}, State) -> - State1 = lists:foldl( - fun (MsgId, State2) -> remove_message(MsgId, CRef, State2) end, - State, MsgIds), - noreply(maybe_compact(client_confirm(CRef, gb_sets:from_list(MsgIds), - removed, State1))); - -handle_cast({sync, MsgIds, K}, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - on_sync = Syncs }) -> - {ok, SyncOffset} = file_handle_cache:last_sync_offset(CurHdl), - case lists:any(fun (MsgId) -> - #msg_location { file = File, offset = Offset } = - index_lookup(MsgId, State), - File =:= CurFile andalso Offset >= SyncOffset - end, MsgIds) of - false -> K(), - noreply(State); - true -> noreply(State #msstate { on_sync = [K | Syncs] }) - end; - -handle_cast(sync, State) -> - noreply(internal_sync(State)); - -handle_cast({combine_files, Source, Destination, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - ok = cleanup_after_file_deletion(Source, State), - %% see comment in cleanup_after_file_deletion, and client_read3 - true = mark_handle_to_close(Clients, FileHandlesEts, Destination, false), - true = ets:update_element(FileSummaryEts, Destination, - {#file_summary.locked, false}), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([Source, Destination], State1))); - -handle_cast({delete_file, File, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize }) -> - ok = cleanup_after_file_deletion(File, State), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([File], State1))); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State). - -handle_info(timeout, State) -> - noreply(internal_sync(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}. - -terminate(_Reason, State = #msstate { index_state = IndexState, - index_module = IndexModule, - current_file_handle = CurHdl, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - dir = Dir }) -> - %% stop the gc first, otherwise it could be working and we pull - %% out the ets tables from under it. - ok = rabbit_msg_store_gc:stop(GCPid), - State1 = case CurHdl of - undefined -> State; - _ -> State2 = internal_sync(State), - ok = file_handle_cache:close(CurHdl), - State2 - end, - State3 = close_all_handles(State1), - ok = store_file_summary(FileSummaryEts, Dir), - [true = ets:delete(T) || - T <- [FileSummaryEts, FileHandlesEts, CurFileCacheEts]], - IndexModule:terminate(IndexState), - ok = store_recovery_terms([{client_refs, dict:fetch_keys(Clients)}, - {index_module, IndexModule}], Dir), - State3 #msstate { index_state = undefined, - current_file_handle = undefined }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). - -%%---------------------------------------------------------------------------- -%% general helper functions -%%---------------------------------------------------------------------------- - -noreply(State) -> - {State1, Timeout} = next_state(State), - {noreply, State1, Timeout}. - -reply(Reply, State) -> - {State1, Timeout} = next_state(State), - {reply, Reply, State1, Timeout}. - -next_state(State = #msstate { sync_timer_ref = undefined, - on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - case {Syncs, dict:size(CTM)} of - {[], 0} -> {State, hibernate}; - _ -> {start_sync_timer(State), 0} - end; -next_state(State = #msstate { on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - case {Syncs, dict:size(CTM)} of - {[], 0} -> {stop_sync_timer(State), hibernate}; - _ -> {State, 0} - end. - -start_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, sync, [self()]), - State #msstate { sync_timer_ref = TRef }. - -stop_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - State; -stop_sync_timer(State = #msstate { sync_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #msstate { sync_timer_ref = undefined }. - -internal_sync(State = #msstate { current_file_handle = CurHdl, - on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - State1 = stop_sync_timer(State), - CGs = dict:fold(fun (CRef, MsgIds, NS) -> - case gb_sets:is_empty(MsgIds) of - true -> NS; - false -> [{CRef, MsgIds} | NS] - end - end, [], CTM), - ok = case {Syncs, CGs} of - {[], []} -> ok; - _ -> file_handle_cache:sync(CurHdl) - end, - [K() || K <- lists:reverse(Syncs)], - State2 = lists:foldl( - fun ({CRef, MsgIds}, StateN) -> - client_confirm(CRef, MsgIds, written, StateN) - end, State1, CGs), - State2 #msstate { on_sync = [] }. - -write_action({true, not_found}, _MsgId, State) -> - {ignore, undefined, State}; -write_action({true, #msg_location { file = File }}, _MsgId, State) -> - {ignore, File, State}; -write_action({false, not_found}, _MsgId, State) -> - {write, State}; -write_action({Mask, #msg_location { ref_count = 0, file = File, - total_size = TotalSize }}, - MsgId, State = #msstate { file_summary_ets = FileSummaryEts }) -> - case {Mask, ets:lookup(FileSummaryEts, File)} of - {false, [#file_summary { locked = true }]} -> - ok = index_delete(MsgId, State), - {write, State}; - {false_if_increment, [#file_summary { locked = true }]} -> - %% The msg for MsgId is older than the client death - %% message, but as it is being GC'd currently we'll have - %% to write a new copy, which will then be younger, so - %% ignore this write. - {ignore, File, State}; - {_Mask, [#file_summary {}]} -> - ok = index_update_ref_count(MsgId, 1, State), - State1 = adjust_valid_total_size(File, TotalSize, State), - {confirm, File, State1} - end; -write_action({_Mask, #msg_location { ref_count = RefCount, file = File }}, - MsgId, State) -> - ok = index_update_ref_count(MsgId, RefCount + 1, State), - %% We already know about it, just update counter. Only update - %% field otherwise bad interaction with concurrent GC - {confirm, File, State}. - -write_message(CRef, MsgId, Msg, State) -> - write_message(MsgId, Msg, record_pending_confirm(CRef, MsgId, State)). - -write_message(MsgId, Msg, - State = #msstate { current_file_handle = CurHdl, - current_file = CurFile, - sum_valid_data = SumValid, - sum_file_size = SumFileSize, - file_summary_ets = FileSummaryEts }) -> - {ok, CurOffset} = file_handle_cache:current_virtual_offset(CurHdl), - {ok, TotalSize} = rabbit_msg_file:append(CurHdl, MsgId, Msg), - ok = index_insert( - #msg_location { msg_id = MsgId, ref_count = 1, file = CurFile, - offset = CurOffset, total_size = TotalSize }, State), - [#file_summary { right = undefined, locked = false }] = - ets:lookup(FileSummaryEts, CurFile), - [_,_] = ets:update_counter(FileSummaryEts, CurFile, - [{#file_summary.valid_total_size, TotalSize}, - {#file_summary.file_size, TotalSize}]), - maybe_roll_to_new_file(CurOffset + TotalSize, - State #msstate { - sum_valid_data = SumValid + TotalSize, - sum_file_size = SumFileSize + TotalSize }). - -read_message(MsgId, From, State) -> - case index_lookup_positive_ref_count(MsgId, State) of - not_found -> gen_server2:reply(From, not_found), - State; - MsgLocation -> read_message1(From, MsgLocation, State) - end. - -read_message1(From, #msg_location { msg_id = MsgId, file = File, - offset = Offset } = MsgLoc, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts }) -> - case File =:= CurFile of - true -> {Msg, State1} = - %% can return [] if msg in file existed on startup - case ets:lookup(CurFileCacheEts, MsgId) of - [] -> - {ok, RawOffSet} = - file_handle_cache:current_raw_offset(CurHdl), - ok = case Offset >= RawOffSet of - true -> file_handle_cache:flush(CurHdl); - false -> ok - end, - read_from_disk(MsgLoc, State); - [{MsgId, Msg1, _CacheRefCount}] -> - {Msg1, State} - end, - gen_server2:reply(From, {ok, Msg}), - State1; - false -> [#file_summary { locked = Locked }] = - ets:lookup(FileSummaryEts, File), - case Locked of - true -> add_to_pending_gc_completion({read, MsgId, From}, - File, State); - false -> {Msg, State1} = read_from_disk(MsgLoc, State), - gen_server2:reply(From, {ok, Msg}), - State1 - end - end. - -read_from_disk(#msg_location { msg_id = MsgId, file = File, offset = Offset, - total_size = TotalSize }, State) -> - {Hdl, State1} = get_read_handle(File, State), - {ok, Offset} = file_handle_cache:position(Hdl, Offset), - {ok, {MsgId, Msg}} = - case rabbit_msg_file:read(Hdl, TotalSize) of - {ok, {MsgId, _}} = Obj -> - Obj; - Rest -> - {error, {misread, [{old_state, State}, - {file_num, File}, - {offset, Offset}, - {msg_id, MsgId}, - {read, Rest}, - {proc_dict, get()} - ]}} - end, - {Msg, State1}. - -contains_message(MsgId, From, - State = #msstate { pending_gc_completion = Pending }) -> - case index_lookup_positive_ref_count(MsgId, State) of - not_found -> - gen_server2:reply(From, false), - State; - #msg_location { file = File } -> - case orddict:is_key(File, Pending) of - true -> add_to_pending_gc_completion( - {contains, MsgId, From}, File, State); - false -> gen_server2:reply(From, true), - State - end - end. - -remove_message(MsgId, CRef, - State = #msstate { file_summary_ets = FileSummaryEts }) -> - case should_mask_action(CRef, MsgId, State) of - {true, _Location} -> - State; - {false_if_increment, #msg_location { ref_count = 0 }} -> - %% CRef has tried to both write and remove this msg - %% whilst it's being GC'd. ASSERTION: - %% [#file_summary { locked = true }] = - %% ets:lookup(FileSummaryEts, File), - State; - {_Mask, #msg_location { ref_count = RefCount, file = File, - total_size = TotalSize }} when RefCount > 0 -> - %% only update field, otherwise bad interaction with - %% concurrent GC - Dec = fun () -> - index_update_ref_count(MsgId, RefCount - 1, State) - end, - case RefCount of - %% don't remove from CUR_FILE_CACHE_ETS_NAME here - %% because there may be further writes in the mailbox - %% for the same msg. - 1 -> case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - add_to_pending_gc_completion( - {remove, MsgId, CRef}, File, State); - [#file_summary {}] -> - ok = Dec(), - delete_file_if_empty( - File, adjust_valid_total_size(File, -TotalSize, - State)) - end; - _ -> ok = Dec(), - State - end - end. - -add_to_pending_gc_completion( - Op, File, State = #msstate { pending_gc_completion = Pending }) -> - State #msstate { pending_gc_completion = - rabbit_misc:orddict_cons(File, Op, Pending) }. - -run_pending(Files, State) -> - lists:foldl( - fun (File, State1 = #msstate { pending_gc_completion = Pending }) -> - Pending1 = orddict:erase(File, Pending), - lists:foldl( - fun run_pending_action/2, - State1 #msstate { pending_gc_completion = Pending1 }, - lists:reverse(orddict:fetch(File, Pending))) - end, State, Files). - -run_pending_action({read, MsgId, From}, State) -> - read_message(MsgId, From, State); -run_pending_action({contains, MsgId, From}, State) -> - contains_message(MsgId, From, State); -run_pending_action({remove, MsgId, CRef}, State) -> - remove_message(MsgId, CRef, State). - -safe_ets_update_counter(Tab, Key, UpdateOp, SuccessFun, FailThunk) -> - try - SuccessFun(ets:update_counter(Tab, Key, UpdateOp)) - catch error:badarg -> FailThunk() - end. - -safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> - safe_ets_update_counter(Tab, Key, UpdateOp, fun (_) -> ok end, FailThunk). - -adjust_valid_total_size(File, Delta, State = #msstate { - sum_valid_data = SumValid, - file_summary_ets = FileSummaryEts }) -> - [_] = ets:update_counter(FileSummaryEts, File, - [{#file_summary.valid_total_size, Delta}]), - State #msstate { sum_valid_data = SumValid + Delta }. - -orddict_store(Key, Val, Dict) -> - false = orddict:is_key(Key, Dict), - orddict:store(Key, Val, Dict). - -update_pending_confirms(Fun, CRef, - State = #msstate { clients = Clients, - cref_to_msg_ids = CTM }) -> - case dict:fetch(CRef, Clients) of - {undefined, _CloseFDsFun} -> State; - {MsgOnDiskFun, _CloseFDsFun} -> CTM1 = Fun(MsgOnDiskFun, CTM), - State #msstate { - cref_to_msg_ids = CTM1 } - end. - -record_pending_confirm(CRef, MsgId, State) -> - update_pending_confirms( - fun (_MsgOnDiskFun, CTM) -> - dict:update(CRef, fun (MsgIds) -> gb_sets:add(MsgId, MsgIds) end, - gb_sets:singleton(MsgId), CTM) - end, CRef, State). - -client_confirm(CRef, MsgIds, ActionTaken, State) -> - update_pending_confirms( - fun (MsgOnDiskFun, CTM) -> - MsgOnDiskFun(MsgIds, ActionTaken), - case dict:find(CRef, CTM) of - {ok, Gs} -> MsgIds1 = gb_sets:difference(Gs, MsgIds), - case gb_sets:is_empty(MsgIds1) of - true -> dict:erase(CRef, CTM); - false -> dict:store(CRef, MsgIds1, CTM) - end; - error -> CTM - end - end, CRef, State). - -%% Detect whether the MsgId is older or younger than the client's death -%% msg (if there is one). If the msg is older than the client death -%% msg, and it has a 0 ref_count we must only alter the ref_count, not -%% rewrite the msg - rewriting it would make it younger than the death -%% msg and thus should be ignored. Note that this (correctly) returns -%% false when testing to remove the death msg itself. -should_mask_action(CRef, MsgId, - State = #msstate { dying_clients = DyingClients }) -> - case {sets:is_element(CRef, DyingClients), index_lookup(MsgId, State)} of - {false, Location} -> - {false, Location}; - {true, not_found} -> - {true, not_found}; - {true, #msg_location { file = File, offset = Offset, - ref_count = RefCount } = Location} -> - #msg_location { file = DeathFile, offset = DeathOffset } = - index_lookup(CRef, State), - {case {{DeathFile, DeathOffset} < {File, Offset}, RefCount} of - {true, _} -> true; - {false, 0} -> false_if_increment; - {false, _} -> false - end, Location} - end. - -%%---------------------------------------------------------------------------- -%% file helper functions -%%---------------------------------------------------------------------------- - -open_file(Dir, FileName, Mode) -> - file_handle_cache:open(form_filename(Dir, FileName), ?BINARY_MODE ++ Mode, - [{write_buffer, ?HANDLE_CACHE_BUFFER_SIZE}]). - -close_handle(Key, CState = #client_msstate { file_handle_cache = FHC }) -> - CState #client_msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, State = #msstate { file_handle_cache = FHC }) -> - State #msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, FHC) -> - case dict:find(Key, FHC) of - {ok, Hdl} -> ok = file_handle_cache:close(Hdl), - dict:erase(Key, FHC); - error -> FHC - end. - -mark_handle_open(FileHandlesEts, File, Ref) -> - %% This is fine to fail (already exists). Note it could fail with - %% the value being close, and not have it updated to open. - ets:insert_new(FileHandlesEts, {{Ref, File}, open}), - true. - -%% See comment in client_read3 - only call this when the file is locked -mark_handle_to_close(ClientRefs, FileHandlesEts, File, Invoke) -> - [ begin - case (ets:update_element(FileHandlesEts, Key, {2, close}) - andalso Invoke) of - true -> case dict:fetch(Ref, ClientRefs) of - {_MsgOnDiskFun, undefined} -> ok; - {_MsgOnDiskFun, CloseFDsFun} -> ok = CloseFDsFun() - end; - false -> ok - end - end || {{Ref, _File} = Key, open} <- - ets:match_object(FileHandlesEts, {{'_', File}, open}) ], - true. - -safe_file_delete_fun(File, Dir, FileHandlesEts) -> - fun () -> safe_file_delete(File, Dir, FileHandlesEts) end. - -safe_file_delete(File, Dir, FileHandlesEts) -> - %% do not match on any value - it's the absence of the row that - %% indicates the client has really closed the file. - case ets:match_object(FileHandlesEts, {{'_', File}, '_'}, 1) of - {[_|_], _Cont} -> false; - _ -> ok = file:delete( - form_filename(Dir, filenum_to_name(File))), - true - end. - -close_all_indicated(#client_msstate { file_handles_ets = FileHandlesEts, - client_ref = Ref } = - CState) -> - Objs = ets:match_object(FileHandlesEts, {{Ref, '_'}, close}), - {ok, lists:foldl(fun ({Key = {_Ref, File}, close}, CStateM) -> - true = ets:delete(FileHandlesEts, Key), - close_handle(File, CStateM) - end, CState, Objs)}. - -close_all_handles(CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_handle_cache = FHC, - client_ref = Ref }) -> - ok = dict:fold(fun (File, Hdl, ok) -> - true = ets:delete(FileHandlesEts, {Ref, File}), - file_handle_cache:close(Hdl) - end, ok, FHC), - CState #client_msstate { file_handle_cache = dict:new() }; - -close_all_handles(State = #msstate { file_handle_cache = FHC }) -> - ok = dict:fold(fun (_Key, Hdl, ok) -> file_handle_cache:close(Hdl) end, - ok, FHC), - State #msstate { file_handle_cache = dict:new() }. - -get_read_handle(FileNum, CState = #client_msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, CState #client_msstate { file_handle_cache = FHC2 }}; - -get_read_handle(FileNum, State = #msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, State #msstate { file_handle_cache = FHC2 }}. - -get_read_handle(FileNum, FHC, Dir) -> - case dict:find(FileNum, FHC) of - {ok, Hdl} -> {Hdl, FHC}; - error -> {ok, Hdl} = open_file(Dir, filenum_to_name(FileNum), - ?READ_MODE), - {Hdl, dict:store(FileNum, Hdl, FHC)} - end. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file_handle_cache:position(Hdl, FileSizeLimit), - ok = file_handle_cache:truncate(Hdl), - {ok, FinalPos} = file_handle_cache:position(Hdl, FinalPos), - ok. - -truncate_and_extend_file(Hdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file_handle_cache:position(Hdl, Lowpoint), - ok = file_handle_cache:truncate(Hdl), - ok = preallocate(Hdl, Highpoint, Lowpoint). - -form_filename(Dir, Name) -> filename:join(Dir, Name). - -filenum_to_name(File) -> integer_to_list(File) ++ ?FILE_EXTENSION. - -filename_to_num(FileName) -> list_to_integer(filename:rootname(FileName)). - -list_sorted_file_names(Dir, Ext) -> - lists:sort(fun (A, B) -> filename_to_num(A) < filename_to_num(B) end, - filelib:wildcard("*" ++ Ext, Dir)). - -%%---------------------------------------------------------------------------- -%% message cache helper functions -%%---------------------------------------------------------------------------- - -update_msg_cache(CacheEts, MsgId, Msg) -> - case ets:insert_new(CacheEts, {MsgId, Msg, 1}) of - true -> ok; - false -> safe_ets_update_counter_ok( - CacheEts, MsgId, {3, +1}, - fun () -> update_msg_cache(CacheEts, MsgId, Msg) end) - end. - -%%---------------------------------------------------------------------------- -%% index -%%---------------------------------------------------------------------------- - -index_lookup_positive_ref_count(Key, State) -> - case index_lookup(Key, State) of - not_found -> not_found; - #msg_location { ref_count = 0 } -> not_found; - #msg_location {} = MsgLocation -> MsgLocation - end. - -index_update_ref_count(Key, RefCount, State) -> - index_update_fields(Key, {#msg_location.ref_count, RefCount}, State). - -index_lookup(Key, #client_msstate { index_module = Index, - index_state = State }) -> - Index:lookup(Key, State); - -index_lookup(Key, #msstate { index_module = Index, index_state = State }) -> - Index:lookup(Key, State). - -index_insert(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:insert(Obj, State). - -index_update(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:update(Obj, State). - -index_update_fields(Key, Updates, #msstate { index_module = Index, - index_state = State }) -> - Index:update_fields(Key, Updates, State). - -index_delete(Key, #msstate { index_module = Index, index_state = State }) -> - Index:delete(Key, State). - -index_delete_by_file(File, #msstate { index_module = Index, - index_state = State }) -> - Index:delete_by_file(File, State). - -%%---------------------------------------------------------------------------- -%% shutdown and recovery -%%---------------------------------------------------------------------------- - -recover_index_and_client_refs(IndexModule, _Recover, undefined, Dir, _Server) -> - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, false, _ClientRefs, Dir, Server) -> - rabbit_log:warning("~w: rebuilding indices from scratch~n", [Server]), - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, true, ClientRefs, Dir, Server) -> - Fresh = fun (ErrorMsg, ErrorArgs) -> - rabbit_log:warning("~w: " ++ ErrorMsg ++ "~n" - "rebuilding indices from scratch~n", - [Server | ErrorArgs]), - {false, IndexModule:new(Dir), []} - end, - case read_recovery_terms(Dir) of - {false, Error} -> - Fresh("failed to read recovery terms: ~p", [Error]); - {true, Terms} -> - RecClientRefs = proplists:get_value(client_refs, Terms, []), - RecIndexModule = proplists:get_value(index_module, Terms), - case (lists:sort(ClientRefs) =:= lists:sort(RecClientRefs) - andalso IndexModule =:= RecIndexModule) of - true -> case IndexModule:recover(Dir) of - {ok, IndexState1} -> - {true, IndexState1, ClientRefs}; - {error, Error} -> - Fresh("failed to recover index: ~p", [Error]) - end; - false -> Fresh("recovery terms differ from present", []) - end - end. - -store_recovery_terms(Terms, Dir) -> - rabbit_misc:write_term_file(filename:join(Dir, ?CLEAN_FILENAME), Terms). - -read_recovery_terms(Dir) -> - Path = filename:join(Dir, ?CLEAN_FILENAME), - case rabbit_misc:read_term_file(Path) of - {ok, Terms} -> case file:delete(Path) of - ok -> {true, Terms}; - {error, Error} -> {false, Error} - end; - {error, Error} -> {false, Error} - end. - -store_file_summary(Tid, Dir) -> - ok = ets:tab2file(Tid, filename:join(Dir, ?FILE_SUMMARY_FILENAME), - [{extended_info, [object_count]}]). - -recover_file_summary(false, _Dir) -> - %% TODO: the only reason for this to be an *ordered*_set is so - %% that a) maybe_compact can start a traversal from the eldest - %% file, and b) build_index in fast recovery mode can easily - %% identify the current file. It's awkward to have both that - %% odering and the left/right pointers in the entries - replacing - %% the former with some additional bit of state would be easy, but - %% ditching the latter would be neater. - {false, ets:new(rabbit_msg_store_file_summary, - [ordered_set, public, {keypos, #file_summary.file}])}; -recover_file_summary(true, Dir) -> - Path = filename:join(Dir, ?FILE_SUMMARY_FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> ok = file:delete(Path), - {true, Tid}; - {error, _Error} -> recover_file_summary(false, Dir) - end. - -count_msg_refs(Gen, Seed, State) -> - case Gen(Seed) of - finished -> - ok; - {_MsgId, 0, Next} -> - count_msg_refs(Gen, Next, State); - {MsgId, Delta, Next} -> - ok = case index_lookup(MsgId, State) of - not_found -> - index_insert(#msg_location { msg_id = MsgId, - file = undefined, - ref_count = Delta }, - State); - #msg_location { ref_count = RefCount } = StoreEntry -> - NewRefCount = RefCount + Delta, - case NewRefCount of - 0 -> index_delete(MsgId, State); - _ -> index_update(StoreEntry #msg_location { - ref_count = NewRefCount }, - State) - end - end, - count_msg_refs(Gen, Next, State) - end. - -recover_crashed_compactions(Dir) -> - FileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION), - TmpFileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION_TMP), - lists:foreach( - fun (TmpFileName) -> - NonTmpRelatedFileName = - filename:rootname(TmpFileName) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFileName, FileNames), - ok = recover_crashed_compaction( - Dir, TmpFileName, NonTmpRelatedFileName) - end, TmpFileNames), - TmpFileNames == []. - -recover_crashed_compaction(Dir, TmpFileName, NonTmpRelatedFileName) -> - %% Because a msg can legitimately appear multiple times in the - %% same file, identifying the contents of the tmp file and where - %% they came from is non-trivial. If we are recovering a crashed - %% compaction then we will be rebuilding the index, which can cope - %% with duplicates appearing. Thus the simplest and safest thing - %% to do is to append the contents of the tmp file to its main - %% file. - {ok, TmpHdl} = open_file(Dir, TmpFileName, ?READ_MODE), - {ok, MainHdl} = open_file(Dir, NonTmpRelatedFileName, - ?READ_MODE ++ ?WRITE_MODE), - {ok, _End} = file_handle_cache:position(MainHdl, eof), - Size = filelib:file_size(form_filename(Dir, TmpFileName)), - {ok, Size} = file_handle_cache:copy(TmpHdl, MainHdl, Size), - ok = file_handle_cache:close(MainHdl), - ok = file_handle_cache:delete(TmpHdl), - ok. - -scan_file_for_valid_messages(Dir, FileName) -> - case open_file(Dir, FileName, ?READ_MODE) of - {ok, Hdl} -> Valid = rabbit_msg_file:scan( - Hdl, filelib:file_size( - form_filename(Dir, FileName)), - fun scan_fun/2, []), - ok = file_handle_cache:close(Hdl), - Valid; - {error, enoent} -> {ok, [], 0}; - {error, Reason} -> {error, {unable_to_scan_file, FileName, Reason}} - end. - -scan_fun({MsgId, TotalSize, Offset, _Msg}, Acc) -> - [{MsgId, TotalSize, Offset} | Acc]. - -%% Takes the list in *ascending* order (i.e. eldest message -%% first). This is the opposite of what scan_file_for_valid_messages -%% produces. The list of msgs that is produced is youngest first. -drop_contiguous_block_prefix(L) -> drop_contiguous_block_prefix(L, 0). - -drop_contiguous_block_prefix([], ExpectedOffset) -> - {ExpectedOffset, []}; -drop_contiguous_block_prefix([#msg_location { offset = ExpectedOffset, - total_size = TotalSize } | Tail], - ExpectedOffset) -> - ExpectedOffset1 = ExpectedOffset + TotalSize, - drop_contiguous_block_prefix(Tail, ExpectedOffset1); -drop_contiguous_block_prefix(MsgsAfterGap, ExpectedOffset) -> - {ExpectedOffset, MsgsAfterGap}. - -build_index(true, _StartupFunState, - State = #msstate { file_summary_ets = FileSummaryEts }) -> - ets:foldl( - fun (#file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize, - file = File }, - {_Offset, State1 = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize }}) -> - {FileSize, State1 #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize, - current_file = File }} - end, {0, State}, FileSummaryEts); -build_index(false, {MsgRefDeltaGen, MsgRefDeltaGenInit}, - State = #msstate { dir = Dir }) -> - ok = count_msg_refs(MsgRefDeltaGen, MsgRefDeltaGenInit, State), - {ok, Pid} = gatherer:start_link(), - case [filename_to_num(FileName) || - FileName <- list_sorted_file_names(Dir, ?FILE_EXTENSION)] of - [] -> build_index(Pid, undefined, [State #msstate.current_file], - State); - Files -> {Offset, State1} = build_index(Pid, undefined, Files, State), - {Offset, lists:foldl(fun delete_file_if_empty/2, - State1, Files)} - end. - -build_index(Gatherer, Left, [], - State = #msstate { file_summary_ets = FileSummaryEts, - sum_valid_data = SumValid, - sum_file_size = SumFileSize }) -> - case gatherer:out(Gatherer) of - empty -> - unlink(Gatherer), - ok = gatherer:stop(Gatherer), - ok = index_delete_by_file(undefined, State), - Offset = case ets:lookup(FileSummaryEts, Left) of - [] -> 0; - [#file_summary { file_size = FileSize }] -> FileSize - end, - {Offset, State #msstate { current_file = Left }}; - {value, #file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize } = FileSummary} -> - true = ets:insert_new(FileSummaryEts, FileSummary), - build_index(Gatherer, Left, [], - State #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize }) - end; -build_index(Gatherer, Left, [File|Files], State) -> - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> build_index_worker(Gatherer, State, - Left, File, Files) - end), - build_index(Gatherer, File, Files, State). - -build_index_worker(Gatherer, State = #msstate { dir = Dir }, - Left, File, Files) -> - {ok, Messages, FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - {ValidMessages, ValidTotalSize} = - lists:foldl( - fun (Obj = {MsgId, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case index_lookup(MsgId, State) of - #msg_location { file = undefined } = StoreEntry -> - ok = index_update(StoreEntry #msg_location { - file = File, offset = Offset, - total_size = TotalSize }, - State), - {[Obj | VMAcc], VTSAcc + TotalSize}; - _ -> - {VMAcc, VTSAcc} - end - end, {[], 0}, Messages), - {Right, FileSize1} = - case Files of - %% if it's the last file, we'll truncate to remove any - %% rubbish above the last valid message. This affects the - %% file size. - [] -> {undefined, case ValidMessages of - [] -> 0; - _ -> {_MsgId, TotalSize, Offset} = - lists:last(ValidMessages), - Offset + TotalSize - end}; - [F|_] -> {F, FileSize} - end, - ok = gatherer:in(Gatherer, #file_summary { - file = File, - valid_total_size = ValidTotalSize, - left = Left, - right = Right, - file_size = FileSize1, - locked = false, - readers = 0 }), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- internal -%%---------------------------------------------------------------------------- - -maybe_roll_to_new_file( - Offset, - State = #msstate { dir = Dir, - current_file_handle = CurHdl, - current_file = CurFile, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - file_size_limit = FileSizeLimit }) - when Offset >= FileSizeLimit -> - State1 = internal_sync(State), - ok = file_handle_cache:close(CurHdl), - NextFile = CurFile + 1, - {ok, NextHdl} = open_file(Dir, filenum_to_name(NextFile), ?WRITE_MODE), - true = ets:insert_new(FileSummaryEts, #file_summary { - file = NextFile, - valid_total_size = 0, - left = CurFile, - right = undefined, - file_size = 0, - locked = false, - readers = 0 }), - true = ets:update_element(FileSummaryEts, CurFile, - {#file_summary.right, NextFile}), - true = ets:match_delete(CurFileCacheEts, {'_', '_', 0}), - maybe_compact(State1 #msstate { current_file_handle = NextHdl, - current_file = NextFile }); -maybe_roll_to_new_file(_, State) -> - State. - -maybe_compact(State = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize, - gc_pid = GCPid, - pending_gc_completion = Pending, - file_summary_ets = FileSummaryEts, - file_size_limit = FileSizeLimit }) - when SumFileSize > 2 * FileSizeLimit andalso - (SumFileSize - SumValid) / SumFileSize > ?GARBAGE_FRACTION -> - %% TODO: the algorithm here is sub-optimal - it may result in a - %% complete traversal of FileSummaryEts. - case ets:first(FileSummaryEts) of - '$end_of_table' -> - State; - First -> - case find_files_to_combine(FileSummaryEts, FileSizeLimit, - ets:lookup(FileSummaryEts, First)) of - not_found -> - State; - {Src, Dst} -> - Pending1 = orddict_store(Dst, [], - orddict_store(Src, [], Pending)), - State1 = close_handle(Src, close_handle(Dst, State)), - true = ets:update_element(FileSummaryEts, Src, - {#file_summary.locked, true}), - true = ets:update_element(FileSummaryEts, Dst, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:combine(GCPid, Src, Dst), - State1 #msstate { pending_gc_completion = Pending1 } - end - end; -maybe_compact(State) -> - State. - -find_files_to_combine(FileSummaryEts, FileSizeLimit, - [#file_summary { file = Dst, - valid_total_size = DstValid, - right = Src, - locked = DstLocked }]) -> - case Src of - undefined -> - not_found; - _ -> - [#file_summary { file = Src, - valid_total_size = SrcValid, - left = Dst, - right = SrcRight, - locked = SrcLocked }] = Next = - ets:lookup(FileSummaryEts, Src), - case SrcRight of - undefined -> not_found; - _ -> case (DstValid + SrcValid =< FileSizeLimit) andalso - (DstValid > 0) andalso (SrcValid > 0) andalso - not (DstLocked orelse SrcLocked) of - true -> {Src, Dst}; - false -> find_files_to_combine( - FileSummaryEts, FileSizeLimit, Next) - end - end - end. - -delete_file_if_empty(File, State = #msstate { current_file = File }) -> - State; -delete_file_if_empty(File, State = #msstate { - gc_pid = GCPid, - file_summary_ets = FileSummaryEts, - pending_gc_completion = Pending }) -> - [#file_summary { valid_total_size = ValidData, - locked = false }] = - ets:lookup(FileSummaryEts, File), - case ValidData of - %% don't delete the file_summary_ets entry for File here - %% because we could have readers which need to be able to - %% decrement the readers count. - 0 -> true = ets:update_element(FileSummaryEts, File, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:delete(GCPid, File), - Pending1 = orddict_store(File, [], Pending), - close_handle(File, - State #msstate { pending_gc_completion = Pending1 }); - _ -> State - end. - -cleanup_after_file_deletion(File, - #msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - %% Ensure that any clients that have open fhs to the file close - %% them before using them again. This has to be done here (given - %% it's done in the msg_store, and not the gc), and not when - %% starting up the GC, because if done when starting up the GC, - %% the client could find the close, and close and reopen the fh, - %% whilst the GC is waiting for readers to disappear, before it's - %% actually done the GC. - true = mark_handle_to_close(Clients, FileHandlesEts, File, true), - [#file_summary { left = Left, - right = Right, - locked = true, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - %% We'll never delete the current file, so right is never undefined - true = Right =/= undefined, %% ASSERTION - true = ets:update_element(FileSummaryEts, Right, - {#file_summary.left, Left}), - %% ensure the double linked list is maintained - true = case Left of - undefined -> true; %% File is the eldest file (left-most) - _ -> ets:update_element(FileSummaryEts, Left, - {#file_summary.right, Right}) - end, - true = ets:delete(FileSummaryEts, File), - ok. - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- external -%%---------------------------------------------------------------------------- - -has_readers(File, #gc_state { file_summary_ets = FileSummaryEts }) -> - [#file_summary { locked = true, readers = Count }] = - ets:lookup(FileSummaryEts, File), - Count /= 0. - -combine_files(Source, Destination, - State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { - readers = 0, - left = Destination, - valid_total_size = SourceValid, - file_size = SourceFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Source), - [#file_summary { - readers = 0, - right = Source, - valid_total_size = DestinationValid, - file_size = DestinationFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Destination), - - SourceName = filenum_to_name(Source), - DestinationName = filenum_to_name(Destination), - {ok, SourceHdl} = open_file(Dir, SourceName, - ?READ_AHEAD_MODE), - {ok, DestinationHdl} = open_file(Dir, DestinationName, - ?READ_AHEAD_MODE ++ ?WRITE_MODE), - TotalValidData = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - {DestinationWorkList, DestinationValid} = - load_and_vacuum_message_file(Destination, State), - {DestinationContiguousTop, DestinationWorkListTail} = - drop_contiguous_block_prefix(DestinationWorkList), - case DestinationWorkListTail of - [] -> ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData); - _ -> Tmp = filename:rootname(DestinationName) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = open_file(Dir, Tmp, ?READ_AHEAD_MODE++?WRITE_MODE), - ok = copy_messages( - DestinationWorkListTail, DestinationContiguousTop, - DestinationValid, DestinationHdl, TmpHdl, Destination, - State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage - %% from Destination, and index_state has been updated to - %% reflect the compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file_handle_cache:position(TmpHdl, 0), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData), - {ok, TmpSize} = - file_handle_cache:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file_handle_cache:sync(DestinationHdl), - ok = file_handle_cache:delete(TmpHdl) - end, - {SourceWorkList, SourceValid} = load_and_vacuum_message_file(Source, State), - ok = copy_messages(SourceWorkList, DestinationValid, TotalValidData, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file_handle_cache:close(DestinationHdl), - ok = file_handle_cache:close(SourceHdl), - - %% don't update dest.right, because it could be changing at the - %% same time - true = ets:update_element( - FileSummaryEts, Destination, - [{#file_summary.valid_total_size, TotalValidData}, - {#file_summary.file_size, TotalValidData}]), - - Reclaimed = SourceFileSize + DestinationFileSize - TotalValidData, - gen_server2:cast(Server, {combine_files, Source, Destination, Reclaimed}), - safe_file_delete_fun(Source, Dir, FileHandlesEts). - -delete_file(File, State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { valid_total_size = 0, - locked = true, - file_size = FileSize, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - {[], 0} = load_and_vacuum_message_file(File, State), - gen_server2:cast(Server, {delete_file, File, FileSize}), - safe_file_delete_fun(File, Dir, FileHandlesEts). - -load_and_vacuum_message_file(File, #gc_state { dir = Dir, - index_module = Index, - index_state = IndexState }) -> - %% Messages here will be end-of-file at start-of-list - {ok, Messages, _FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - %% foldl will reverse so will end up with msgs in ascending offset order - lists:foldl( - fun ({MsgId, TotalSize, Offset}, Acc = {List, Size}) -> - case Index:lookup(MsgId, IndexState) of - #msg_location { file = File, total_size = TotalSize, - offset = Offset, ref_count = 0 } = Entry -> - ok = Index:delete_object(Entry, IndexState), - Acc; - #msg_location { file = File, total_size = TotalSize, - offset = Offset } = Entry -> - {[ Entry | List ], TotalSize + Size}; - _ -> - Acc - end - end, {[], 0}, Messages). - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, #gc_state { index_module = Index, - index_state = IndexState }) -> - Copy = fun ({BlockStart, BlockEnd}) -> - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file_handle_cache:position(SourceHdl, BlockStart), - {ok, BSize} = - file_handle_cache:copy(SourceHdl, DestinationHdl, BSize) - end, - case - lists:foldl( - fun (#msg_location { msg_id = MsgId, offset = Offset, - total_size = TotalSize }, - {CurOffset, Block = {BlockStart, BlockEnd}}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - %% update MsgLocation to reflect change of file and offset - ok = Index:update_fields(MsgId, - [{#msg_location.file, Destination}, - {#msg_location.offset, CurOffset}], - IndexState), - {CurOffset + TotalSize, - case BlockEnd of - undefined -> - %% base case, called only for the first list elem - {Offset, Offset + TotalSize}; - Offset -> - %% extend the current block because the - %% next msg follows straight on - {BlockStart, BlockEnd + TotalSize}; - _ -> - %% found a gap, so actually do the work for - %% the previous block - Copy(Block), - {Offset, Offset + TotalSize} - end} - end, {InitOffset, {undefined, undefined}}, WorkList) of - {FinalOffset, Block} -> - case WorkList of - [] -> ok; - _ -> Copy(Block), %% do the last remaining block - ok = file_handle_cache:sync(DestinationHdl) - end; - {FinalOffsetZ, _Block} -> - {gc_error, [{expected, FinalOffset}, - {got, FinalOffsetZ}, - {destination, Destination}]} - end. - -force_recovery(BaseDir, Store) -> - Dir = filename:join(BaseDir, atom_to_list(Store)), - case file:delete(filename:join(Dir, ?CLEAN_FILENAME)) of - ok -> ok; - {error, enoent} -> ok - end, - recover_crashed_compactions(BaseDir), - ok. - -foreach_file(D, Fun, Files) -> - [ok = Fun(filename:join(D, File)) || File <- Files]. - -foreach_file(D1, D2, Fun, Files) -> - [ok = Fun(filename:join(D1, File), filename:join(D2, File)) || File <- Files]. - -transform_dir(BaseDir, Store, TransformFun) -> - Dir = filename:join(BaseDir, atom_to_list(Store)), - TmpDir = filename:join(Dir, ?TRANSFORM_TMP), - TransformFile = fun (A, B) -> transform_msg_file(A, B, TransformFun) end, - CopyFile = fun (Src, Dst) -> {ok, _Bytes} = file:copy(Src, Dst), ok end, - case filelib:is_dir(TmpDir) of - true -> throw({error, transform_failed_previously}); - false -> FileList = list_sorted_file_names(Dir, ?FILE_EXTENSION), - foreach_file(Dir, TmpDir, TransformFile, FileList), - foreach_file(Dir, fun file:delete/1, FileList), - foreach_file(TmpDir, Dir, CopyFile, FileList), - foreach_file(TmpDir, fun file:delete/1, FileList), - ok = file:del_dir(TmpDir) - end. - -transform_msg_file(FileOld, FileNew, TransformFun) -> - ok = rabbit_misc:ensure_parent_dirs_exist(FileNew), - {ok, RefOld} = file_handle_cache:open(FileOld, [raw, binary, read], []), - {ok, RefNew} = file_handle_cache:open(FileNew, [raw, binary, write], - [{write_buffer, - ?HANDLE_CACHE_BUFFER_SIZE}]), - {ok, _Acc, _IgnoreSize} = - rabbit_msg_file:scan( - RefOld, filelib:file_size(FileOld), - fun({MsgId, _Size, _Offset, BinMsg}, ok) -> - {ok, MsgNew} = case binary_to_term(BinMsg) of - <<>> -> {ok, <<>>}; %% dying client marker - Msg -> TransformFun(Msg) - end, - {ok, _} = rabbit_msg_file:append(RefNew, MsgId, MsgNew), - ok - end, ok), - ok = file_handle_cache:close(RefOld), - ok = file_handle_cache:close(RefNew), - ok. diff --git a/src/rabbit_msg_store_ets_index.erl b/src/rabbit_msg_store_ets_index.erl deleted file mode 100644 index d6dc5568..00000000 --- a/src/rabbit_msg_store_ets_index.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_ets_index). - --behaviour(rabbit_msg_store_index). - --export([new/1, recover/1, - lookup/2, insert/2, update/2, update_fields/3, delete/2, - delete_object/2, delete_by_file/2, terminate/1]). - --define(MSG_LOC_NAME, rabbit_msg_store_ets_index). --define(FILENAME, "msg_store_index.ets"). - --include("rabbit_msg_store_index.hrl"). - --record(state, { table, dir }). - -new(Dir) -> - file:delete(filename:join(Dir, ?FILENAME)), - Tid = ets:new(?MSG_LOC_NAME, [set, public, {keypos, #msg_location.msg_id}]), - #state { table = Tid, dir = Dir }. - -recover(Dir) -> - Path = filename:join(Dir, ?FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> file:delete(Path), - {ok, #state { table = Tid, dir = Dir }}; - Error -> Error - end. - -lookup(Key, State) -> - case ets:lookup(State #state.table, Key) of - [] -> not_found; - [Entry] -> Entry - end. - -insert(Obj, State) -> - true = ets:insert_new(State #state.table, Obj), - ok. - -update(Obj, State) -> - true = ets:insert(State #state.table, Obj), - ok. - -update_fields(Key, Updates, State) -> - true = ets:update_element(State #state.table, Key, Updates), - ok. - -delete(Key, State) -> - true = ets:delete(State #state.table, Key), - ok. - -delete_object(Obj, State) -> - true = ets:delete_object(State #state.table, Obj), - ok. - -delete_by_file(File, State) -> - MatchHead = #msg_location { file = File, _ = '_' }, - ets:select_delete(State #state.table, [{MatchHead, [], [true]}]), - ok. - -terminate(#state { table = MsgLocations, dir = Dir }) -> - ok = ets:tab2file(MsgLocations, filename:join(Dir, ?FILENAME), - [{extended_info, [object_count]}]), - ets:delete(MsgLocations). diff --git a/src/rabbit_msg_store_gc.erl b/src/rabbit_msg_store_gc.erl deleted file mode 100644 index 77f1f04e..00000000 --- a/src/rabbit_msg_store_gc.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_gc). - --behaviour(gen_server2). - --export([start_link/1, combine/3, delete/2, no_readers/2, stop/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - --record(state, - { pending_no_readers, - on_action, - msg_store_state - }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (rabbit_msg_store:gc_state()) -> - rabbit_types:ok_pid_or_error()). --spec(combine/3 :: (pid(), rabbit_msg_store:file_num(), - rabbit_msg_store:file_num()) -> 'ok'). --spec(delete/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(no_readers/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(stop/1 :: (pid()) -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(MsgStoreState) -> - gen_server2:start_link(?MODULE, [MsgStoreState], - [{timeout, infinity}]). - -combine(Server, Source, Destination) -> - gen_server2:cast(Server, {combine, Source, Destination}). - -delete(Server, File) -> - gen_server2:cast(Server, {delete, File}). - -no_readers(Server, File) -> - gen_server2:cast(Server, {no_readers, File}). - -stop(Server) -> - gen_server2:call(Server, stop, infinity). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- - -init([MsgStoreState]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - {ok, #state { pending_no_readers = dict:new(), - on_action = [], - msg_store_state = MsgStoreState }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}. - -handle_cast({combine, Source, Destination}, State) -> - {noreply, attempt_action(combine, [Source, Destination], State), hibernate}; - -handle_cast({delete, File}, State) -> - {noreply, attempt_action(delete, [File], State), hibernate}; - -handle_cast({no_readers, File}, - State = #state { pending_no_readers = Pending }) -> - {noreply, case dict:find(File, Pending) of - error -> - State; - {ok, {Action, Files}} -> - Pending1 = dict:erase(File, Pending), - attempt_action( - Action, Files, - State #state { pending_no_readers = Pending1 }) - end, hibernate}; - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, State, hibernate}. - -handle_info(Info, State) -> - {stop, {unhandled_info, Info}, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -attempt_action(Action, Files, - State = #state { pending_no_readers = Pending, - on_action = Thunks, - msg_store_state = MsgStoreState }) -> - case [File || File <- Files, - rabbit_msg_store:has_readers(File, MsgStoreState)] of - [] -> State #state { - on_action = lists:filter( - fun (Thunk) -> not Thunk() end, - [do_action(Action, Files, MsgStoreState) | - Thunks]) }; - [File | _] -> Pending1 = dict:store(File, {Action, Files}, Pending), - State #state { pending_no_readers = Pending1 } - end. - -do_action(combine, [Source, Destination], MsgStoreState) -> - rabbit_msg_store:combine_files(Source, Destination, MsgStoreState); -do_action(delete, [File], MsgStoreState) -> - rabbit_msg_store:delete_file(File, MsgStoreState). diff --git a/src/rabbit_msg_store_index.erl b/src/rabbit_msg_store_index.erl deleted file mode 100644 index ef8b7cdf..00000000 --- a/src/rabbit_msg_store_index.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_index). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [{new, 1}, - {recover, 1}, - {lookup, 2}, - {insert, 2}, - {update, 2}, - {update_fields, 3}, - {delete, 2}, - {delete_by_file, 2}, - {terminate, 1}]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl deleted file mode 100644 index b944ec81..00000000 --- a/src/rabbit_net.erl +++ /dev/null @@ -1,143 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_net). --include("rabbit.hrl"). - --export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - recv/1, async_recv/3, port_command/2, setopts/2, send/2, close/1, - sockname/1, peername/1, peercert/1]). - -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([socket/0]). - --type(stat_option() :: - 'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' | - 'send_cnt' | 'send_max' | 'send_avg' | 'send_oct' | 'send_pend'). --type(ok_val_or_error(A) :: rabbit_types:ok_or_error2(A, any())). --type(ok_or_any_error() :: rabbit_types:ok_or_error(any())). --type(socket() :: port() | #ssl_socket{}). - --spec(is_ssl/1 :: (socket()) -> boolean()). --spec(ssl_info/1 :: (socket()) - -> 'nossl' | ok_val_or_error( - {atom(), {atom(), atom(), atom()}})). --spec(controlling_process/2 :: (socket(), pid()) -> ok_or_any_error()). --spec(getstat/2 :: - (socket(), [stat_option()]) - -> ok_val_or_error([{stat_option(), integer()}])). --spec(recv/1 :: (socket()) -> - {'data', [char()] | binary()} | 'closed' | - rabbit_types:error(any()) | {'other', any()}). --spec(async_recv/3 :: - (socket(), integer(), timeout()) -> rabbit_types:ok(any())). --spec(port_command/2 :: (socket(), iolist()) -> 'true'). --spec(setopts/2 :: (socket(), [{atom(), any()} | - {raw, non_neg_integer(), non_neg_integer(), - binary()}]) -> ok_or_any_error()). --spec(send/2 :: (socket(), binary() | iolist()) -> ok_or_any_error()). --spec(close/1 :: (socket()) -> ok_or_any_error()). --spec(sockname/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peername/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peercert/1 :: - (socket()) - -> 'nossl' | ok_val_or_error(rabbit_ssl:certificate())). - --endif. - -%%--------------------------------------------------------------------------- - --define(IS_SSL(Sock), is_record(Sock, ssl_socket)). - -is_ssl(Sock) -> ?IS_SSL(Sock). - -ssl_info(Sock) when ?IS_SSL(Sock) -> - ssl:connection_info(Sock#ssl_socket.ssl); -ssl_info(_Sock) -> - nossl. - -controlling_process(Sock, Pid) when ?IS_SSL(Sock) -> - ssl:controlling_process(Sock#ssl_socket.ssl, Pid); -controlling_process(Sock, Pid) when is_port(Sock) -> - gen_tcp:controlling_process(Sock, Pid). - -getstat(Sock, Stats) when ?IS_SSL(Sock) -> - inet:getstat(Sock#ssl_socket.tcp, Stats); -getstat(Sock, Stats) when is_port(Sock) -> - inet:getstat(Sock, Stats). - -recv(Sock) when ?IS_SSL(Sock) -> - recv(Sock#ssl_socket.ssl, {ssl, ssl_closed, ssl_error}); -recv(Sock) when is_port(Sock) -> - recv(Sock, {tcp, tcp_closed, tcp_error}). - -recv(S, {DataTag, ClosedTag, ErrorTag}) -> - receive - {DataTag, S, Data} -> {data, Data}; - {ClosedTag, S} -> closed; - {ErrorTag, S, Reason} -> {error, Reason}; - Other -> {other, Other} - end. - -async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> - Pid = self(), - Ref = make_ref(), - - spawn(fun () -> Pid ! {inet_async, Sock, Ref, - ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)} - end), - - {ok, Ref}; -async_recv(Sock, Length, infinity) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, -1); -async_recv(Sock, Length, Timeout) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, Timeout). - -port_command(Sock, Data) when ?IS_SSL(Sock) -> - case ssl:send(Sock#ssl_socket.ssl, Data) of - ok -> self() ! {inet_reply, Sock, ok}, - true; - {error, Reason} -> erlang:error(Reason) - end; -port_command(Sock, Data) when is_port(Sock) -> - erlang:port_command(Sock, Data). - -setopts(Sock, Options) when ?IS_SSL(Sock) -> - ssl:setopts(Sock#ssl_socket.ssl, Options); -setopts(Sock, Options) when is_port(Sock) -> - inet:setopts(Sock, Options). - -send(Sock, Data) when ?IS_SSL(Sock) -> ssl:send(Sock#ssl_socket.ssl, Data); -send(Sock, Data) when is_port(Sock) -> gen_tcp:send(Sock, Data). - -close(Sock) when ?IS_SSL(Sock) -> ssl:close(Sock#ssl_socket.ssl); -close(Sock) when is_port(Sock) -> gen_tcp:close(Sock). - -sockname(Sock) when ?IS_SSL(Sock) -> ssl:sockname(Sock#ssl_socket.ssl); -sockname(Sock) when is_port(Sock) -> inet:sockname(Sock). - -peername(Sock) when ?IS_SSL(Sock) -> ssl:peername(Sock#ssl_socket.ssl); -peername(Sock) when is_port(Sock) -> inet:peername(Sock). - -peercert(Sock) when ?IS_SSL(Sock) -> ssl:peercert(Sock#ssl_socket.ssl); -peercert(Sock) when is_port(Sock) -> nossl. diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl deleted file mode 100644 index a10c021c..00000000 --- a/src/rabbit_networking.erl +++ /dev/null @@ -1,398 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_networking). - --export([boot/0, start/0, start_tcp_listener/1, start_ssl_listener/2, - stop_tcp_listener/1, on_node_down/1, active_listeners/0, - node_listeners/1, connections/0, connection_info_keys/0, - connection_info/1, connection_info/2, - connection_info_all/0, connection_info_all/1, - close_connection/2, force_connection_event_refresh/0]). - -%%used by TCP-based transports, e.g. STOMP adapter --export([check_tcp_listener_address/2, - ensure_ssl/0, ssl_transform_fun/1]). - --export([tcp_listener_started/3, tcp_listener_stopped/3, - start_client/1, start_ssl_client/2]). - --include("rabbit.hrl"). --include_lib("kernel/include/inet.hrl"). - --define(SSL_TIMEOUT, 5). %% seconds - --define(FIRST_TEST_BIND_PORT, 10000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([ip_port/0, hostname/0]). - --type(hostname() :: inet:hostname()). --type(ip_port() :: inet:ip_port()). - --type(family() :: atom()). --type(listener_config() :: ip_port() | - {hostname(), ip_port()} | - {hostname(), ip_port(), family()}). - --spec(start/0 :: () -> 'ok'). --spec(start_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(start_ssl_listener/2 :: - (listener_config(), rabbit_types:infos()) -> 'ok'). --spec(stop_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(active_listeners/0 :: () -> [rabbit_types:listener()]). --spec(node_listeners/1 :: (node()) -> [rabbit_types:listener()]). --spec(connections/0 :: () -> [rabbit_types:connection()]). --spec(connection_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(connection_info/1 :: - (rabbit_types:connection()) -> rabbit_types:infos()). --spec(connection_info/2 :: - (rabbit_types:connection(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(connection_info_all/0 :: () -> [rabbit_types:infos()]). --spec(connection_info_all/1 :: - (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(close_connection/2 :: (pid(), string()) -> 'ok'). --spec(force_connection_event_refresh/0 :: () -> 'ok'). - --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(check_tcp_listener_address/2 :: (atom(), listener_config()) - -> [{inet:ip_address(), ip_port(), family(), atom()}]). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - ok = start(), - ok = boot_tcp(), - ok = boot_ssl(). - -boot_tcp() -> - {ok, TcpListeners} = application:get_env(tcp_listeners), - [ok = start_tcp_listener(Listener) || Listener <- TcpListeners], - ok. - -boot_ssl() -> - case application:get_env(ssl_listeners) of - {ok, []} -> - ok; - {ok, SslListeners} -> - [start_ssl_listener(Listener, ensure_ssl()) - || Listener <- SslListeners], - ok - end. - -start() -> - {ok,_} = supervisor2:start_child( - rabbit_sup, - {rabbit_tcp_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_tcp_client_sup}, - {rabbit_connection_sup,start_link,[]}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%% inet_parse:address takes care of ip string, like "0.0.0.0" -%% inet:getaddr returns immediately for ip tuple {0,0,0,0}, -%% and runs 'inet_gethost' port process for dns lookups. -%% On Windows inet:getaddr runs dns resolver for ip string, which may fail. - -getaddr(Host, Family) -> - case inet_parse:address(Host) of - {ok, IPAddress} -> [{IPAddress, resolve_family(IPAddress, Family)}]; - {error, _} -> gethostaddr(Host, Family) - end. - -gethostaddr(Host, auto) -> - Lookups = [{Family, inet:getaddr(Host, Family)} || Family <- [inet, inet6]], - case [{IP, Family} || {Family, {ok, IP}} <- Lookups] of - [] -> host_lookup_error(Host, Lookups); - IPs -> IPs - end; - -gethostaddr(Host, Family) -> - case inet:getaddr(Host, Family) of - {ok, IPAddress} -> [{IPAddress, Family}]; - {error, Reason} -> host_lookup_error(Host, Reason) - end. - -host_lookup_error(Host, Reason) -> - error_logger:error_msg("invalid host ~p - ~p~n", [Host, Reason]), - throw({error, {invalid_host, Host, Reason}}). - -resolve_family({_,_,_,_}, auto) -> inet; -resolve_family({_,_,_,_,_,_,_,_}, auto) -> inet6; -resolve_family(IP, auto) -> throw({error, {strange_family, IP}}); -resolve_family(_, F) -> F. - -ensure_ssl() -> - ok = rabbit_misc:start_applications([crypto, public_key, ssl]), - {ok, SslOptsConfig} = application:get_env(rabbit, ssl_options), - - % unknown_ca errors are silently ignored prior to R14B unless we - % supply this verify_fun - remove when at least R14B is required - case proplists:get_value(verify, SslOptsConfig, verify_none) of - verify_none -> SslOptsConfig; - verify_peer -> [{verify_fun, fun([]) -> true; - ([_|_]) -> false - end} - | SslOptsConfig] - end. - -ssl_transform_fun(SslOpts) -> - fun (Sock) -> - case catch ssl:ssl_accept(Sock, SslOpts, ?SSL_TIMEOUT * 1000) of - {ok, SslSock} -> - rabbit_log:info("upgraded TCP connection ~p to SSL~n", - [self()]), - {ok, #ssl_socket{tcp = Sock, ssl = SslSock}}; - {error, Reason} -> - {error, {ssl_upgrade_error, Reason}}; - {'EXIT', Reason} -> - {error, {ssl_upgrade_failure, Reason}} - end - end. - -check_tcp_listener_address(NamePrefix, Port) when is_integer(Port) -> - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {"auto", Port}) -> - %% Variant to prevent lots of hacking around in bash and batch files - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {Host, Port}) -> - %% auto: determine family IPv4 / IPv6 after converting to IP address - check_tcp_listener_address(NamePrefix, {Host, Port, auto}); - -check_tcp_listener_address(NamePrefix, {Host, Port, Family0}) -> - if is_integer(Port) andalso (Port >= 0) andalso (Port =< 65535) -> ok; - true -> error_logger:error_msg("invalid port ~p - not 0..65535~n", - [Port]), - throw({error, {invalid_port, Port}}) - end, - [{IPAddress, Port, Family, - rabbit_misc:tcp_name(NamePrefix, IPAddress, Port)} || - {IPAddress, Family} <- getaddr(Host, Family0)]. - -check_tcp_listener_address_auto(NamePrefix, Port) -> - lists:append([check_tcp_listener_address(NamePrefix, Listener) || - Listener <- port_to_listeners(Port)]). - -start_tcp_listener(Listener) -> - start_listener(Listener, amqp, "TCP Listener", - {?MODULE, start_client, []}). - -start_ssl_listener(Listener, SslOpts) -> - start_listener(Listener, 'amqp/ssl', "SSL Listener", - {?MODULE, start_ssl_client, [SslOpts]}). - -start_listener(Listener, Protocol, Label, OnConnect) -> - [start_listener0(Spec, Protocol, Label, OnConnect) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -start_listener0({IPAddress, Port, Family, Name}, Protocol, Label, OnConnect) -> - {ok,_} = supervisor:start_child( - rabbit_sup, - {Name, - {tcp_listener_sup, start_link, - [IPAddress, Port, [Family | tcp_opts()], - {?MODULE, tcp_listener_started, [Protocol]}, - {?MODULE, tcp_listener_stopped, [Protocol]}, - OnConnect, Label]}, - transient, infinity, supervisor, [tcp_listener_sup]}). - -stop_tcp_listener(Listener) -> - [stop_tcp_listener0(Spec) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -stop_tcp_listener0({IPAddress, Port, _Family, Name}) -> - Name = rabbit_misc:tcp_name(rabbit_tcp_listener_sup, IPAddress, Port), - ok = supervisor:terminate_child(rabbit_sup, Name), - ok = supervisor:delete_child(rabbit_sup, Name). - -tcp_listener_started(Protocol, IPAddress, Port) -> - %% We need the ip to distinguish e.g. 0.0.0.0 and 127.0.0.1 - %% We need the host so we can distinguish multiple instances of the above - %% in a cluster. - ok = mnesia:dirty_write( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -tcp_listener_stopped(Protocol, IPAddress, Port) -> - ok = mnesia:dirty_delete_object( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -active_listeners() -> - rabbit_misc:dirty_read_all(rabbit_listener). - -node_listeners(Node) -> - mnesia:dirty_read(rabbit_listener, Node). - -on_node_down(Node) -> - ok = mnesia:dirty_delete(rabbit_listener, Node). - -start_client(Sock, SockTransform) -> - {ok, _Child, Reader} = supervisor:start_child(rabbit_tcp_client_sup, []), - ok = rabbit_net:controlling_process(Sock, Reader), - Reader ! {go, Sock, SockTransform}, - Reader. - -start_client(Sock) -> - start_client(Sock, fun (S) -> {ok, S} end). - -start_ssl_client(SslOpts, Sock) -> - start_client(Sock, ssl_transform_fun(SslOpts)). - -connections() -> pg2_fixed:get_members(rabbit_network_connections). - -connection_info_keys() -> rabbit_reader:info_keys(). - -connection_info(Pid) -> rabbit_reader:info(Pid). -connection_info(Pid, Items) -> rabbit_reader:info(Pid, Items). - -connection_info_all() -> cmap(fun (Q) -> connection_info(Q) end). -connection_info_all(Items) -> cmap(fun (Q) -> connection_info(Q, Items) end). - -close_connection(Pid, Explanation) -> - case lists:member(Pid, connections()) of - true -> rabbit_reader:shutdown(Pid, Explanation); - false -> throw({error, {not_a_connection_pid, Pid}}) - end. - -force_connection_event_refresh() -> - cmap(fun (C) -> rabbit_reader:force_event_refresh(C) end). - -%%-------------------------------------------------------------------- - -tcp_host({0,0,0,0}) -> - hostname(); - -tcp_host({0,0,0,0,0,0,0,0}) -> - hostname(); - -tcp_host(IPAddress) -> - case inet:gethostbyaddr(IPAddress) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> rabbit_misc:ntoa(IPAddress) - end. - -hostname() -> - {ok, Hostname} = inet:gethostname(), - case inet:gethostbyname(Hostname) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> Hostname - end. - -cmap(F) -> rabbit_misc:filter_exit_map(F, connections()). - -tcp_opts() -> - {ok, Opts} = application:get_env(rabbit, tcp_listen_options), - Opts. - -%%-------------------------------------------------------------------- - -%% There are three kinds of machine (for our purposes). -%% -%% * Those which treat IPv4 addresses as a special kind of IPv6 address -%% ("Single stack") -%% - Linux by default, Windows Vista and later -%% - We also treat any (hypothetical?) IPv6-only machine the same way -%% * Those which consider IPv6 and IPv4 to be completely separate things -%% ("Dual stack") -%% - OpenBSD, Windows XP / 2003, Linux if so configured -%% * Those which do not support IPv6. -%% - Ancient/weird OSes, Linux if so configured -%% -%% How to reconfigure Linux to test this: -%% Single stack (default): -%% echo 0 > /proc/sys/net/ipv6/bindv6only -%% Dual stack: -%% echo 1 > /proc/sys/net/ipv6/bindv6only -%% IPv4 only: -%% add ipv6.disable=1 to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub then -%% sudo update-grub && sudo reboot -%% -%% This matters in (and only in) the case where the sysadmin (or the -%% app descriptor) has only supplied a port and we wish to bind to -%% "all addresses". This means different things depending on whether -%% we're single or dual stack. On single stack binding to "::" -%% implicitly includes all IPv4 addresses, and subsequently attempting -%% to bind to "0.0.0.0" will fail. On dual stack, binding to "::" will -%% only bind to IPv6 addresses, and we need another listener bound to -%% "0.0.0.0" for IPv4. Finally, on IPv4-only systems we of course only -%% want to bind to "0.0.0.0". -%% -%% Unfortunately it seems there is no way to detect single vs dual stack -%% apart from attempting to bind to the port. -port_to_listeners(Port) -> - IPv4 = {"0.0.0.0", Port, inet}, - IPv6 = {"::", Port, inet6}, - case ipv6_status(?FIRST_TEST_BIND_PORT) of - single_stack -> [IPv6]; - ipv6_only -> [IPv6]; - dual_stack -> [IPv6, IPv4]; - ipv4_only -> [IPv4] - end. - -ipv6_status(TestPort) -> - IPv4 = [inet, {ip, {0,0,0,0}}], - IPv6 = [inet6, {ip, {0,0,0,0,0,0,0,0}}], - case gen_tcp:listen(TestPort, IPv6) of - {ok, LSock6} -> - case gen_tcp:listen(TestPort, IPv4) of - {ok, LSock4} -> - %% Dual stack - gen_tcp:close(LSock6), - gen_tcp:close(LSock4), - dual_stack; - %% Checking the error here would only let us - %% distinguish single stack IPv6 / IPv4 vs IPv6 only, - %% which we figure out below anyway. - {error, _} -> - gen_tcp:close(LSock6), - case gen_tcp:listen(TestPort, IPv4) of - %% Single stack - {ok, LSock4} -> gen_tcp:close(LSock4), - single_stack; - %% IPv6-only machine. Welcome to the future. - {error, eafnosupport} -> ipv6_only; - %% Dual stack machine with something already - %% on IPv4. - {error, _} -> ipv6_status(TestPort + 1) - end - end; - {error, eafnosupport} -> - %% IPv4-only machine. Welcome to the 90s. - ipv4_only; - {error, _} -> - %% Port in use - ipv6_status(TestPort + 1) - end. diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl deleted file mode 100644 index 1f30a2fc..00000000 --- a/src/rabbit_node_monitor.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_node_monitor). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([notify_cluster/0, rabbit_running_on/1]). - --define(SERVER, ?MODULE). --define(RABBIT_UP_RPC_TIMEOUT, 2000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(rabbit_running_on/1 :: (node()) -> 'ok'). --spec(notify_cluster/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -rabbit_running_on(Node) -> - gen_server:cast(rabbit_node_monitor, {rabbit_running_on, Node}). - -notify_cluster() -> - Node = node(), - Nodes = rabbit_mnesia:running_clustered_nodes() -- [Node], - %% notify other rabbits of this rabbit - case rpc:multicall(Nodes, rabbit_node_monitor, rabbit_running_on, - [Node], ?RABBIT_UP_RPC_TIMEOUT) of - {_, [] } -> ok; - {_, Bad} -> rabbit_log:info("failed to contact nodes ~p~n", [Bad]) - end, - %% register other active rabbits with this rabbit - [ rabbit_node_monitor:rabbit_running_on(N) || N <- Nodes ], - ok. - -%%-------------------------------------------------------------------- - -init([]) -> - ok = net_kernel:monitor_nodes(true), - {ok, no_state}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({rabbit_running_on, Node}, State) -> - rabbit_log:info("node ~p up~n", [Node]), - erlang:monitor(process, {rabbit, Node}), - ok = rabbit_alarm:on_node_up(Node), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({nodedown, Node}, State) -> - rabbit_log:info("node ~p down~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info({'DOWN', _MRef, process, {rabbit, Node}, _Reason}, State) -> - rabbit_log:info("node ~p lost 'rabbit'~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -%% TODO: This may turn out to be a performance hog when there are lots -%% of nodes. We really only need to execute some of these statements -%% on *one* node, rather than all of them. -handle_dead_rabbit(Node) -> - ok = rabbit_networking:on_node_down(Node), - ok = rabbit_amqqueue:on_node_down(Node), - ok = rabbit_alarm:on_node_down(Node). diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl deleted file mode 100644 index 92829e49..00000000 --- a/src/rabbit_prelaunch.erl +++ /dev/null @@ -1,286 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_prelaunch). - --export([start/0, stop/0]). - --define(BaseApps, [rabbit]). --define(ERROR_CODE, 1). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - io:format("Activating RabbitMQ plugins ...~n"), - - %% Determine our various directories - [PluginDir, UnpackedPluginDir, NodeStr] = init:get_plain_arguments(), - RootName = UnpackedPluginDir ++ "/rabbit", - - %% Unpack any .ez plugins - unpack_ez_plugins(PluginDir, UnpackedPluginDir), - - %% Build a list of required apps based on the fixed set, and any plugins - PluginApps = find_plugins(PluginDir) ++ find_plugins(UnpackedPluginDir), - RequiredApps = ?BaseApps ++ PluginApps, - - %% Build the entire set of dependencies - this will load the - %% applications along the way - AllApps = case catch sets:to_list(expand_dependencies(RequiredApps)) of - {failed_to_load_app, App, Err} -> - terminate("failed to load application ~s:~n~p", - [App, Err]); - AppList -> - AppList - end, - AppVersions = [determine_version(App) || App <- AllApps], - RabbitVersion = proplists:get_value(rabbit, AppVersions), - - %% Build the overall release descriptor - RDesc = {release, - {"rabbit", RabbitVersion}, - {erts, erlang:system_info(version)}, - AppVersions}, - - %% Write it out to $RABBITMQ_PLUGINS_EXPAND_DIR/rabbit.rel - rabbit_misc:write_file(RootName ++ ".rel", io_lib:format("~p.~n", [RDesc])), - - %% We exclude mochiweb due to its optional use of fdsrv. - XRefExclude = [mochiweb], - - %% Compile the script - ScriptFile = RootName ++ ".script", - case systools:make_script(RootName, [local, silent, - {exref, AllApps -- XRefExclude}]) of - {ok, Module, Warnings} -> - %% This gets lots of spurious no-source warnings when we - %% have .ez files, so we want to supress them to prevent - %% hiding real issues. On Ubuntu, we also get warnings - %% about kernel/stdlib sources being out of date, which we - %% also ignore for the same reason. - WarningStr = Module:format_warning( - [W || W <- Warnings, - case W of - {warning, {source_not_found, _}} -> false; - {warning, {obj_out_of_date, {_,_,WApp,_,_}}} - when WApp == mnesia; - WApp == stdlib; - WApp == kernel; - WApp == sasl; - WApp == crypto; - WApp == os_mon -> false; - _ -> true - end]), - case length(WarningStr) of - 0 -> ok; - _ -> S = string:copies("*", 80), - io:format("~n~s~n~s~s~n~n", [S, WarningStr, S]) - end, - ok; - {error, Module, Error} -> - terminate("generation of boot script file ~s failed:~n~s", - [ScriptFile, Module:format_error(Error)]) - end, - - case post_process_script(ScriptFile) of - ok -> ok; - {error, Reason} -> - terminate("post processing of boot script file ~s failed:~n~w", - [ScriptFile, Reason]) - end, - case systools:script2boot(RootName) of - ok -> ok; - error -> terminate("failed to compile boot script file ~s", - [ScriptFile]) - end, - io:format("~w plugins activated:~n", [length(PluginApps)]), - [io:format("* ~s-~s~n", [App, proplists:get_value(App, AppVersions)]) - || App <- PluginApps], - io:nl(), - - ok = duplicate_node_check(NodeStr), - - terminate(0), - ok. - -stop() -> - ok. - -determine_version(App) -> - application:load(App), - {ok, Vsn} = application:get_key(App, vsn), - {App, Vsn}. - -delete_recursively(Fn) -> - case filelib:is_dir(Fn) and not(is_symlink(Fn)) of - true -> - case file:list_dir(Fn) of - {ok, Files} -> - case lists:foldl(fun ( Fn1, ok) -> delete_recursively( - Fn ++ "/" ++ Fn1); - (_Fn1, Err) -> Err - end, ok, Files) of - ok -> case file:del_dir(Fn) of - ok -> ok; - {error, E} -> {error, - {cannot_delete, Fn, E}} - end; - Err -> Err - end; - {error, E} -> - {error, {cannot_list_files, Fn, E}} - end; - false -> - case filelib:is_file(Fn) of - true -> case file:delete(Fn) of - ok -> ok; - {error, E} -> {error, {cannot_delete, Fn, E}} - end; - false -> ok - end - end. - -is_symlink(Name) -> - case file:read_link(Name) of - {ok, _} -> true; - _ -> false - end. - -unpack_ez_plugins(SrcDir, DestDir) -> - %% Eliminate the contents of the destination directory - case delete_recursively(DestDir) of - ok -> ok; - {error, E} -> terminate("Could not delete dir ~s (~p)", [DestDir, E]) - end, - case filelib:ensure_dir(DestDir ++ "/") of - ok -> ok; - {error, E2} -> terminate("Could not create dir ~s (~p)", [DestDir, E2]) - end, - [unpack_ez_plugin(PluginName, DestDir) || - PluginName <- filelib:wildcard(SrcDir ++ "/*.ez")]. - -unpack_ez_plugin(PluginFn, PluginDestDir) -> - zip:unzip(PluginFn, [{cwd, PluginDestDir}]), - ok. - -find_plugins(PluginDir) -> - [prepare_dir_plugin(PluginName) || - PluginName <- filelib:wildcard(PluginDir ++ "/*/ebin/*.app")]. - -prepare_dir_plugin(PluginAppDescFn) -> - %% Add the plugin ebin directory to the load path - PluginEBinDirN = filename:dirname(PluginAppDescFn), - code:add_path(PluginEBinDirN), - - %% We want the second-last token - NameTokens = string:tokens(PluginAppDescFn,"/."), - PluginNameString = lists:nth(length(NameTokens) - 1, NameTokens), - list_to_atom(PluginNameString). - -expand_dependencies(Pending) -> - expand_dependencies(sets:new(), Pending). -expand_dependencies(Current, []) -> - Current; -expand_dependencies(Current, [Next|Rest]) -> - case sets:is_element(Next, Current) of - true -> - expand_dependencies(Current, Rest); - false -> - case application:load(Next) of - ok -> - ok; - {error, {already_loaded, _}} -> - ok; - {error, Reason} -> - throw({failed_to_load_app, Next, Reason}) - end, - {ok, Required} = application:get_key(Next, applications), - Unique = [A || A <- Required, not(sets:is_element(A, Current))], - expand_dependencies(sets:add_element(Next, Current), Rest ++ Unique) - end. - -post_process_script(ScriptFile) -> - case file:consult(ScriptFile) of - {ok, [{script, Name, Entries}]} -> - NewEntries = lists:flatmap(fun process_entry/1, Entries), - case file:open(ScriptFile, [write]) of - {ok, Fd} -> - io:format(Fd, "%% script generated at ~w ~w~n~p.~n", - [date(), time(), {script, Name, NewEntries}]), - file:close(Fd), - ok; - {error, OReason} -> - {error, {failed_to_open_script_file_for_writing, OReason}} - end; - {error, Reason} -> - {error, {failed_to_load_script, Reason}} - end. - -process_entry(Entry = {apply,{application,start_boot,[mnesia,permanent]}}) -> - [{apply,{rabbit,prepare,[]}}, Entry]; -process_entry(Entry) -> - [Entry]. - -%% Check whether a node with the same name is already running -duplicate_node_check([]) -> - %% Ignore running node while installing windows service - ok; -duplicate_node_check(NodeStr) -> - Node = rabbit_misc:makenode(NodeStr), - {NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - case net_adm:names(NodeHost) of - {ok, NamePorts} -> - case proplists:is_defined(NodeName, NamePorts) of - true -> io:format("node with name ~p " - "already running on ~p~n", - [NodeName, NodeHost]), - [io:format(Fmt ++ "~n", Args) || - {Fmt, Args} <- rabbit_control:diagnostics(Node)], - terminate(?ERROR_CODE); - false -> ok - end; - {error, EpmdReason} -> - terminate("epmd error for host ~p: ~p (~s)~n", - [NodeHost, EpmdReason, - case EpmdReason of - address -> "unable to establish tcp connection"; - _ -> inet:format_error(EpmdReason) - end]) - end. - -terminate(Fmt, Args) -> - io:format("ERROR: " ++ Fmt ++ "~n", Args), - terminate(?ERROR_CODE). - -terminate(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status), - receive - after infinity -> ok - end - end. diff --git a/src/rabbit_queue_collector.erl b/src/rabbit_queue_collector.erl deleted file mode 100644 index 9b45e798..00000000 --- a/src/rabbit_queue_collector.erl +++ /dev/null @@ -1,92 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_collector). - --behaviour(gen_server). - --export([start_link/0, register/2, delete_all/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {queues, delete_from}). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/2 :: (pid(), rabbit_types:amqqueue()) -> 'ok'). --spec(delete_all/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link(?MODULE, [], []). - -register(CollectorPid, Q) -> - gen_server:call(CollectorPid, {register, Q}, infinity). - -delete_all(CollectorPid) -> - gen_server:call(CollectorPid, delete_all, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state{queues = dict:new(), delete_from = undefined}}. - -%%-------------------------------------------------------------------------- - -handle_call({register, Q}, _From, - State = #state{queues = Queues, delete_from = Deleting}) -> - MonitorRef = erlang:monitor(process, Q#amqqueue.pid), - case Deleting of - undefined -> ok; - _ -> rabbit_amqqueue:delete_immediately(Q) - end, - {reply, ok, State#state{queues = dict:store(MonitorRef, Q, Queues)}}; - -handle_call(delete_all, From, State = #state{queues = Queues, - delete_from = undefined}) -> - case dict:size(Queues) of - 0 -> {reply, ok, State#state{delete_from = From}}; - _ -> [rabbit_amqqueue:delete_immediately(Q) - || {_MRef, Q} <- dict:to_list(Queues)], - {noreply, State#state{delete_from = From}} - end. - -handle_cast(Msg, State) -> - {stop, {unhandled_cast, Msg}, State}. - -handle_info({'DOWN', MonitorRef, process, _DownPid, _Reason}, - State = #state{queues = Queues, delete_from = Deleting}) -> - Queues1 = dict:erase(MonitorRef, Queues), - case Deleting =/= undefined andalso dict:size(Queues1) =:= 0 of - true -> gen_server:reply(Deleting, ok); - false -> ok - end, - {noreply, State#state{queues = Queues1}}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl deleted file mode 100644 index bf89cdb2..00000000 --- a/src/rabbit_queue_index.erl +++ /dev/null @@ -1,1070 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_index). - --export([init/2, shutdown_terms/1, recover/5, - terminate/2, delete_and_terminate/1, - publish/5, deliver/2, ack/2, sync/1, sync/2, flush/1, read/3, - next_segment_boundary/1, bounds/1, recover/1]). - --export([add_queue_ttl/0]). - --define(CLEAN_FILENAME, "clean.dot"). - -%%---------------------------------------------------------------------------- - -%% The queue index is responsible for recording the order of messages -%% within a queue on disk. -%% -%% Because of the fact that the queue can decide at any point to send -%% a queue entry to disk, you can not rely on publishes appearing in -%% order. The only thing you can rely on is a message being published, -%% then delivered, then ack'd. -%% -%% In order to be able to clean up ack'd messages, we write to segment -%% files. These files have a fixed maximum size: ?SEGMENT_ENTRY_COUNT -%% publishes, delivers and acknowledgements. They are numbered, and so -%% it is known that the 0th segment contains messages 0 -> -%% ?SEGMENT_ENTRY_COUNT - 1, the 1st segment contains messages -%% ?SEGMENT_ENTRY_COUNT -> 2*?SEGMENT_ENTRY_COUNT - 1 and so on. As -%% such, in the segment files, we only refer to message sequence ids -%% by the LSBs as SeqId rem ?SEGMENT_ENTRY_COUNT. This gives them a -%% fixed size. -%% -%% However, transient messages which are not sent to disk at any point -%% will cause gaps to appear in segment files. Therefore, we delete a -%% segment file whenever the number of publishes == number of acks -%% (note that although it is not fully enforced, it is assumed that a -%% message will never be ackd before it is delivered, thus this test -%% also implies == number of delivers). In practise, this does not -%% cause disk churn in the pathological case because of the journal -%% and caching (see below). -%% -%% Because of the fact that publishes, delivers and acks can occur all -%% over, we wish to avoid lots of seeking. Therefore we have a fixed -%% sized journal to which all actions are appended. When the number of -%% entries in this journal reaches max_journal_entries, the journal -%% entries are scattered out to their relevant files, and the journal -%% is truncated to zero size. Note that entries in the journal must -%% carry the full sequence id, thus the format of entries in the -%% journal is different to that in the segments. -%% -%% The journal is also kept fully in memory, pre-segmented: the state -%% contains a mapping from segment numbers to state-per-segment (this -%% state is held for all segments which have been "seen": thus a -%% segment which has been read but has no pending entries in the -%% journal is still held in this mapping. Also note that a dict is -%% used for this mapping, not an array because with an array, you will -%% always have entries from 0). Actions are stored directly in this -%% state. Thus at the point of flushing the journal, firstly no -%% reading from disk is necessary, but secondly if the known number of -%% acks and publishes in a segment are equal, given the known state of -%% the segment file combined with the journal, no writing needs to be -%% done to the segment file either (in fact it is deleted if it exists -%% at all). This is safe given that the set of acks is a subset of the -%% set of publishes. When it is necessary to sync messages, it is -%% sufficient to fsync on the journal: when entries are distributed -%% from the journal to segment files, those segments appended to are -%% fsync'd prior to the journal being truncated. -%% -%% This module is also responsible for scanning the queue index files -%% and seeding the message store on start up. -%% -%% Note that in general, the representation of a message's state as -%% the tuple: {('no_pub'|{MsgId, MsgProps, IsPersistent}), -%% ('del'|'no_del'), ('ack'|'no_ack')} is richer than strictly -%% necessary for most operations. However, for startup, and to ensure -%% the safe and correct combination of journal entries with entries -%% read from the segment on disk, this richer representation vastly -%% simplifies and clarifies the code. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. -%% -%%---------------------------------------------------------------------------- - -%% ---- Journal details ---- - --define(JOURNAL_FILENAME, "journal.jif"). - --define(PUB_PERSIST_JPREFIX, 2#00). --define(PUB_TRANS_JPREFIX, 2#01). --define(DEL_JPREFIX, 2#10). --define(ACK_JPREFIX, 2#11). --define(JPREFIX_BITS, 2). --define(SEQ_BYTES, 8). --define(SEQ_BITS, ((?SEQ_BYTES * 8) - ?JPREFIX_BITS)). - -%% ---- Segment details ---- - --define(SEGMENT_EXTENSION, ".idx"). - -%% TODO: The segment size would be configurable, but deriving all the -%% other values is quite hairy and quite possibly noticably less -%% efficient, depending on how clever the compiler is when it comes to -%% binary generation/matching with constant vs variable lengths. - --define(REL_SEQ_BITS, 14). --define(SEGMENT_ENTRY_COUNT, 16384). %% trunc(math:pow(2,?REL_SEQ_BITS))). - -%% seq only is binary 00 followed by 14 bits of rel seq id -%% (range: 0 - 16383) --define(REL_SEQ_ONLY_PREFIX, 00). --define(REL_SEQ_ONLY_PREFIX_BITS, 2). --define(REL_SEQ_ONLY_RECORD_BYTES, 2). - -%% publish record is binary 1 followed by a bit for is_persistent, -%% then 14 bits of rel seq id, 64 bits for message expiry and 128 bits -%% of md5sum msg id --define(PUB_PREFIX, 1). --define(PUB_PREFIX_BITS, 1). - --define(EXPIRY_BYTES, 8). --define(EXPIRY_BITS, (?EXPIRY_BYTES * 8)). --define(NO_EXPIRY, 0). - --define(MSG_ID_BYTES, 16). %% md5sum is 128 bit or 16 bytes --define(MSG_ID_BITS, (?MSG_ID_BYTES * 8)). - -%% 16 bytes for md5sum + 8 for expiry --define(PUB_RECORD_BODY_BYTES, (?MSG_ID_BYTES + ?EXPIRY_BYTES)). -%% + 2 for seq, bits and prefix --define(PUB_RECORD_BYTES, (?PUB_RECORD_BODY_BYTES + 2)). - -%% 1 publish, 1 deliver, 1 ack per msg --define(SEGMENT_TOTAL_SIZE, ?SEGMENT_ENTRY_COUNT * - (?PUB_RECORD_BYTES + (2 * ?REL_SEQ_ONLY_RECORD_BYTES))). - -%% ---- misc ---- - --define(PUB, {_, _, _}). %% {MsgId, MsgProps, IsPersistent} - --define(READ_MODE, [binary, raw, read]). --define(READ_AHEAD_MODE, [{read_ahead, ?SEGMENT_TOTAL_SIZE} | ?READ_MODE]). --define(WRITE_MODE, [write | ?READ_MODE]). - -%%---------------------------------------------------------------------------- - --record(qistate, { dir, segments, journal_handle, dirty_count, - max_journal_entries, on_sync, unsynced_msg_ids }). - --record(segment, { num, path, journal_entries, unacked }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({add_queue_ttl, local, []}). - --ifdef(use_specs). - --type(hdl() :: ('undefined' | any())). --type(segment() :: ('undefined' | - #segment { num :: non_neg_integer(), - path :: file:filename(), - journal_entries :: array(), - unacked :: non_neg_integer() - })). --type(seq_id() :: integer()). --type(seg_dict() :: {dict(), [segment()]}). --type(on_sync_fun() :: fun ((gb_set()) -> ok)). --type(qistate() :: #qistate { dir :: file:filename(), - segments :: 'undefined' | seg_dict(), - journal_handle :: hdl(), - dirty_count :: integer(), - max_journal_entries :: non_neg_integer(), - on_sync :: on_sync_fun(), - unsynced_msg_ids :: [rabbit_types:msg_id()] - }). --type(contains_predicate() :: fun ((rabbit_types:msg_id()) -> boolean())). --type(walker(A) :: fun ((A) -> 'finished' | - {rabbit_types:msg_id(), non_neg_integer(), A})). --type(shutdown_terms() :: [any()]). - --spec(init/2 :: (rabbit_amqqueue:name(), on_sync_fun()) -> qistate()). --spec(shutdown_terms/1 :: (rabbit_amqqueue:name()) -> shutdown_terms()). --spec(recover/5 :: (rabbit_amqqueue:name(), shutdown_terms(), boolean(), - contains_predicate(), on_sync_fun()) -> - {'undefined' | non_neg_integer(), qistate()}). --spec(terminate/2 :: ([any()], qistate()) -> qistate()). --spec(delete_and_terminate/1 :: (qistate()) -> qistate()). --spec(publish/5 :: (rabbit_types:msg_id(), seq_id(), - rabbit_types:message_properties(), boolean(), qistate()) - -> qistate()). --spec(deliver/2 :: ([seq_id()], qistate()) -> qistate()). --spec(ack/2 :: ([seq_id()], qistate()) -> qistate()). --spec(sync/2 :: ([seq_id()], qistate()) -> qistate()). --spec(flush/1 :: (qistate()) -> qistate()). --spec(read/3 :: (seq_id(), seq_id(), qistate()) -> - {[{rabbit_types:msg_id(), seq_id(), - rabbit_types:message_properties(), - boolean(), boolean()}], qistate()}). --spec(next_segment_boundary/1 :: (seq_id()) -> seq_id()). --spec(bounds/1 :: (qistate()) -> - {non_neg_integer(), non_neg_integer(), qistate()}). --spec(recover/1 :: ([rabbit_amqqueue:name()]) -> {[[any()]], {walker(A), A}}). - --spec(add_queue_ttl/0 :: () -> 'ok'). - --endif. - - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -init(Name, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - false = filelib:is_file(Dir), %% is_file == is file or dir - State #qistate { on_sync = OnSyncFun }. - -shutdown_terms(Name) -> - #qistate { dir = Dir } = blank_state(Name), - case read_shutdown_terms(Dir) of - {error, _} -> []; - {ok, Terms1} -> Terms1 - end. - -recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - State1 = State #qistate { on_sync = OnSyncFun }, - CleanShutdown = detect_clean_shutdown(Dir), - case CleanShutdown andalso MsgStoreRecovered of - true -> RecoveredCounts = proplists:get_value(segments, Terms, []), - init_clean(RecoveredCounts, State1); - false -> init_dirty(CleanShutdown, ContainsCheckFun, State1) - end. - -terminate(Terms, State) -> - {SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - store_clean_shutdown([{segments, SegmentCounts} | Terms], Dir), - State1. - -delete_and_terminate(State) -> - {_SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - ok = rabbit_misc:recursive_delete([Dir]), - State1. - -publish(MsgId, SeqId, MsgProps, IsPersistent, - State = #qistate { unsynced_msg_ids = UnsyncedMsgIds }) - when is_binary(MsgId) -> - ?MSG_ID_BYTES = size(MsgId), - {JournalHdl, State1} = get_journal_handle( - State #qistate { - unsynced_msg_ids = [MsgId | UnsyncedMsgIds] }), - ok = file_handle_cache:append( - JournalHdl, [<<(case IsPersistent of - true -> ?PUB_PERSIST_JPREFIX; - false -> ?PUB_TRANS_JPREFIX - end):?JPREFIX_BITS, - SeqId:?SEQ_BITS>>, - create_pub_record_body(MsgId, MsgProps)]), - maybe_flush_journal( - add_to_journal(SeqId, {MsgId, MsgProps, IsPersistent}, State1)). - -deliver(SeqIds, State) -> - deliver_or_ack(del, SeqIds, State). - -ack(SeqIds, State) -> - deliver_or_ack(ack, SeqIds, State). - -%% This is only called when there are outstanding confirms and the -%% queue is idle. -sync(State = #qistate { unsynced_msg_ids = MsgIds }) -> - sync_if([] =/= MsgIds, State). - -sync(SeqIds, State) -> - %% The SeqIds here contains the SeqId of every publish and ack to - %% be sync'ed. Ideally we should go through these seqids and only - %% sync the journal if the pubs or acks appear in the - %% journal. However, this would be complex to do, and given that - %% the variable queue publishes and acks to the qi, and then - %% syncs, all in one operation, there is no possibility of the - %% seqids not being in the journal. - sync_if([] =/= SeqIds, State). - -flush(State = #qistate { dirty_count = 0 }) -> State; -flush(State) -> flush_journal(State). - -read(StartEnd, StartEnd, State) -> - {[], State}; -read(Start, End, State = #qistate { segments = Segments, - dir = Dir }) when Start =< End -> - %% Start is inclusive, End is exclusive. - LowerB = {StartSeg, _StartRelSeq} = seq_id_to_seg_and_rel_seq_id(Start), - UpperB = {EndSeg, _EndRelSeq} = seq_id_to_seg_and_rel_seq_id(End - 1), - {Messages, Segments1} = - lists:foldr(fun (Seg, Acc) -> - read_bounded_segment(Seg, LowerB, UpperB, Acc, Dir) - end, {[], Segments}, lists:seq(StartSeg, EndSeg)), - {Messages, State #qistate { segments = Segments1 }}. - -next_segment_boundary(SeqId) -> - {Seg, _RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - reconstruct_seq_id(Seg + 1, 0). - -bounds(State = #qistate { segments = Segments }) -> - %% This is not particularly efficient, but only gets invoked on - %% queue initialisation. - SegNums = lists:sort(segment_nums(Segments)), - %% Don't bother trying to figure out the lowest seq_id, merely the - %% seq_id of the start of the lowest segment. That seq_id may not - %% actually exist, but that's fine. The important thing is that - %% the segment exists and the seq_id reported is on a segment - %% boundary. - %% - %% We also don't really care about the max seq_id. Just start the - %% next segment: it makes life much easier. - %% - %% SegNums is sorted, ascending. - {LowSeqId, NextSeqId} = - case SegNums of - [] -> {0, 0}; - [MinSeg|_] -> {reconstruct_seq_id(MinSeg, 0), - reconstruct_seq_id(1 + lists:last(SegNums), 0)} - end, - {LowSeqId, NextSeqId, State}. - -recover(DurableQueues) -> - DurableDict = dict:from_list([ {queue_name_to_dir_name(Queue), Queue} || - Queue <- DurableQueues ]), - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), - {DurableQueueNames, DurableTerms} = - lists:foldl( - fun (QueueDirName, {DurableAcc, TermsAcc}) -> - QueueDirPath = filename:join(QueuesDir, QueueDirName), - case sets:is_element(QueueDirName, DurableDirectories) of - true -> - TermsAcc1 = - case read_shutdown_terms(QueueDirPath) of - {error, _} -> TermsAcc; - {ok, Terms} -> [Terms | TermsAcc] - end, - {[dict:fetch(QueueDirName, DurableDict) | DurableAcc], - TermsAcc1}; - false -> - ok = rabbit_misc:recursive_delete([QueueDirPath]), - {DurableAcc, TermsAcc} - end - end, {[], []}, QueueDirNames), - {DurableTerms, {fun queue_index_walker/1, {start, DurableQueueNames}}}. - -all_queue_directory_names(Dir) -> - case file:list_dir(Dir) of - {ok, Entries} -> [ Entry || Entry <- Entries, - filelib:is_dir( - filename:join(Dir, Entry)) ]; - {error, enoent} -> [] - end. - -%%---------------------------------------------------------------------------- -%% startup and shutdown -%%---------------------------------------------------------------------------- - -blank_state(QueueName) -> - Dir = filename:join(queues_dir(), queue_name_to_dir_name(QueueName)), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - #qistate { dir = Dir, - segments = segments_new(), - journal_handle = undefined, - dirty_count = 0, - max_journal_entries = MaxJournal, - on_sync = fun (_) -> ok end, - unsynced_msg_ids = [] }. - -clean_file_name(Dir) -> filename:join(Dir, ?CLEAN_FILENAME). - -detect_clean_shutdown(Dir) -> - case file:delete(clean_file_name(Dir)) of - ok -> true; - {error, enoent} -> false - end. - -read_shutdown_terms(Dir) -> - rabbit_misc:read_term_file(clean_file_name(Dir)). - -store_clean_shutdown(Terms, Dir) -> - CleanFileName = clean_file_name(Dir), - ok = filelib:ensure_dir(CleanFileName), - rabbit_misc:write_term_file(CleanFileName, Terms). - -init_clean(RecoveredCounts, State) -> - %% Load the journal. Since this is a clean recovery this (almost) - %% gets us back to where we were on shutdown. - State1 = #qistate { dir = Dir, segments = Segments } = load_journal(State), - %% The journal loading only creates records for segments touched - %% by the journal, and the counts are based on the journal entries - %% only. We need *complete* counts for *all* segments. By an - %% amazing coincidence we stored that information on shutdown. - Segments1 = - lists:foldl( - fun ({Seg, UnackedCount}, SegmentsN) -> - Segment = segment_find_or_new(Seg, Dir, SegmentsN), - segment_store(Segment #segment { unacked = UnackedCount }, - SegmentsN) - end, Segments, RecoveredCounts), - %% the counts above include transient messages, which would be the - %% wrong thing to return - {undefined, State1 # qistate { segments = Segments1 }}. - -init_dirty(CleanShutdown, ContainsCheckFun, State) -> - %% Recover the journal completely. This will also load segments - %% which have entries in the journal and remove duplicates. The - %% counts will correctly reflect the combination of the segment - %% and the journal. - State1 = #qistate { dir = Dir, segments = Segments } = - recover_journal(State), - {Segments1, Count} = - %% Load each segment in turn and filter out messages that are - %% not in the msg_store, by adding acks to the journal. These - %% acks only go to the RAM journal as it doesn't matter if we - %% lose them. Also mark delivered if not clean shutdown. Also - %% find the number of unacked messages. - lists:foldl( - fun (Seg, {Segments2, CountAcc}) -> - Segment = #segment { unacked = UnackedCount } = - recover_segment(ContainsCheckFun, CleanShutdown, - segment_find_or_new(Seg, Dir, Segments2)), - {segment_store(Segment, Segments2), CountAcc + UnackedCount} - end, {Segments, 0}, all_segment_nums(State1)), - %% Unconditionally flush since the dirty_count doesn't get updated - %% by the above foldl. - State2 = flush_journal(State1 #qistate { segments = Segments1 }), - {Count, State2}. - -terminate(State = #qistate { journal_handle = JournalHdl, - segments = Segments }) -> - ok = case JournalHdl of - undefined -> ok; - _ -> file_handle_cache:close(JournalHdl) - end, - SegmentCounts = - segment_fold( - fun (#segment { num = Seg, unacked = UnackedCount }, Acc) -> - [{Seg, UnackedCount} | Acc] - end, [], Segments), - {SegmentCounts, State #qistate { journal_handle = undefined, - segments = undefined }}. - -recover_segment(ContainsCheckFun, CleanShutdown, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, UnackedCount} = load_segment(false, Segment), - {SegEntries1, UnackedCountDelta} = - segment_plus_journal(SegEntries, JEntries), - array:sparse_foldl( - fun (RelSeq, {{MsgId, _MsgProps, _IsPersistent}, Del, no_ack}, - Segment1) -> - recover_message(ContainsCheckFun(MsgId), CleanShutdown, - Del, RelSeq, Segment1) - end, - Segment #segment { unacked = UnackedCount + UnackedCountDelta }, - SegEntries1). - -recover_message( true, true, _Del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, del, Segment); -recover_message(false, _, del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, Segment); -recover_message(false, _, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, add_to_journal(RelSeq, del, Segment)). - -queue_name_to_dir_name(Name = #resource { kind = queue }) -> - <> = erlang:md5(term_to_binary(Name)), - lists:flatten(io_lib:format("~.36B", [Num])). - -queues_dir() -> - filename:join(rabbit_mnesia:dir(), "queues"). - -%%---------------------------------------------------------------------------- -%% msg store startup delta function -%%---------------------------------------------------------------------------- - -queue_index_walker({start, DurableQueues}) when is_list(DurableQueues) -> - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> queue_index_walker_reader(QueueName, Gatherer) - end) - end || QueueName <- DurableQueues], - queue_index_walker({next, Gatherer}); - -queue_index_walker({next, Gatherer}) when is_pid(Gatherer) -> - case gatherer:out(Gatherer) of - empty -> - unlink(Gatherer), - ok = gatherer:stop(Gatherer), - finished; - {value, {MsgId, Count}} -> - {MsgId, Count, {next, Gatherer}} - end. - -queue_index_walker_reader(QueueName, Gatherer) -> - State = #qistate { segments = Segments, dir = Dir } = - recover_journal(blank_state(QueueName)), - [ok = segment_entries_foldr( - fun (_RelSeq, {{MsgId, _MsgProps, true}, _IsDelivered, no_ack}, - ok) -> - gatherer:in(Gatherer, {MsgId, 1}); - (_RelSeq, _Value, Acc) -> - Acc - end, ok, segment_find_or_new(Seg, Dir, Segments)) || - Seg <- all_segment_nums(State)], - {_SegmentCounts, _State} = terminate(State), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% expiry/binary manipulation -%%---------------------------------------------------------------------------- - -create_pub_record_body(MsgId, #message_properties { expiry = Expiry }) -> - [MsgId, expiry_to_binary(Expiry)]. - -expiry_to_binary(undefined) -> <>; -expiry_to_binary(Expiry) -> <>. - -parse_pub_record_body(<>) -> - %% work around for binary data fragmentation. See - %% rabbit_msg_file:read_next/2 - <> = <>, - Exp = case Expiry of - ?NO_EXPIRY -> undefined; - X -> X - end, - {MsgId, #message_properties { expiry = Exp }}. - -%%---------------------------------------------------------------------------- -%% journal manipulation -%%---------------------------------------------------------------------------- - -add_to_journal(SeqId, Action, State = #qistate { dirty_count = DCount, - segments = Segments, - dir = Dir }) -> - {Seg, RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - Segment = segment_find_or_new(Seg, Dir, Segments), - Segment1 = add_to_journal(RelSeq, Action, Segment), - State #qistate { dirty_count = DCount + 1, - segments = segment_store(Segment1, Segments) }; - -add_to_journal(RelSeq, Action, - Segment = #segment { journal_entries = JEntries, - unacked = UnackedCount }) -> - Segment1 = Segment #segment { - journal_entries = add_to_journal(RelSeq, Action, JEntries) }, - case Action of - del -> Segment1; - ack -> Segment1 #segment { unacked = UnackedCount - 1 }; - ?PUB -> Segment1 #segment { unacked = UnackedCount + 1 } - end; - -add_to_journal(RelSeq, Action, JEntries) -> - Val = case array:get(RelSeq, JEntries) of - undefined -> - case Action of - ?PUB -> {Action, no_del, no_ack}; - del -> {no_pub, del, no_ack}; - ack -> {no_pub, no_del, ack} - end; - ({Pub, no_del, no_ack}) when Action == del -> - {Pub, del, no_ack}; - ({Pub, Del, no_ack}) when Action == ack -> - {Pub, Del, ack} - end, - array:set(RelSeq, Val, JEntries). - -maybe_flush_journal(State = #qistate { dirty_count = DCount, - max_journal_entries = MaxJournal }) - when DCount > MaxJournal -> - flush_journal(State); -maybe_flush_journal(State) -> - State. - -flush_journal(State = #qistate { segments = Segments }) -> - Segments1 = - segment_fold( - fun (#segment { unacked = 0, path = Path }, SegmentsN) -> - case filelib:is_file(Path) of - true -> ok = file:delete(Path); - false -> ok - end, - SegmentsN; - (#segment {} = Segment, SegmentsN) -> - segment_store(append_journal_to_segment(Segment), SegmentsN) - end, segments_new(), Segments), - {JournalHdl, State1} = - get_journal_handle(State #qistate { segments = Segments1 }), - ok = file_handle_cache:clear(JournalHdl), - notify_sync(State1 #qistate { dirty_count = 0 }). - -append_journal_to_segment(#segment { journal_entries = JEntries, - path = Path } = Segment) -> - case array:sparse_size(JEntries) of - 0 -> Segment; - _ -> {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - array:sparse_foldl(fun write_entry_to_segment/3, Hdl, JEntries), - ok = file_handle_cache:close(Hdl), - Segment #segment { journal_entries = array_new() } - end. - -get_journal_handle(State = #qistate { journal_handle = undefined, - dir = Dir }) -> - Path = filename:join(Dir, ?JOURNAL_FILENAME), - ok = filelib:ensure_dir(Path), - {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - {Hdl, State #qistate { journal_handle = Hdl }}; -get_journal_handle(State = #qistate { journal_handle = Hdl }) -> - {Hdl, State}. - -%% Loading Journal. This isn't idempotent and will mess up the counts -%% if you call it more than once on the same state. Assumes the counts -%% are 0 to start with. -load_journal(State) -> - {JournalHdl, State1} = get_journal_handle(State), - {ok, 0} = file_handle_cache:position(JournalHdl, 0), - load_journal_entries(State1). - -%% ditto -recover_journal(State) -> - State1 = #qistate { segments = Segments } = load_journal(State), - Segments1 = - segment_map( - fun (Segment = #segment { journal_entries = JEntries, - unacked = UnackedCountInJournal }) -> - %% We want to keep ack'd entries in so that we can - %% remove them if duplicates are in the journal. The - %% counts here are purely from the segment itself. - {SegEntries, UnackedCountInSeg} = load_segment(true, Segment), - {JEntries1, UnackedCountDuplicates} = - journal_minus_segment(JEntries, SegEntries), - Segment #segment { journal_entries = JEntries1, - unacked = (UnackedCountInJournal + - UnackedCountInSeg - - UnackedCountDuplicates) } - end, Segments), - State1 #qistate { segments = Segments1 }. - -load_journal_entries(State = #qistate { journal_handle = Hdl }) -> - case file_handle_cache:read(Hdl, ?SEQ_BYTES) of - {ok, <>} -> - case Prefix of - ?DEL_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, del, State)); - ?ACK_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, ack, State)); - _ -> - case file_handle_cache:read(Hdl, ?PUB_RECORD_BODY_BYTES) of - {ok, Bin} -> - {MsgId, MsgProps} = parse_pub_record_body(Bin), - IsPersistent = case Prefix of - ?PUB_PERSIST_JPREFIX -> true; - ?PUB_TRANS_JPREFIX -> false - end, - load_journal_entries( - add_to_journal( - SeqId, {MsgId, MsgProps, IsPersistent}, State)); - _ErrOrEoF -> %% err, we've lost at least a publish - State - end - end; - _ErrOrEoF -> State - end. - -deliver_or_ack(_Kind, [], State) -> - State; -deliver_or_ack(Kind, SeqIds, State) -> - JPrefix = case Kind of ack -> ?ACK_JPREFIX; del -> ?DEL_JPREFIX end, - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, - [<> || SeqId <- SeqIds]), - maybe_flush_journal(lists:foldl(fun (SeqId, StateN) -> - add_to_journal(SeqId, Kind, StateN) - end, State1, SeqIds)). - -sync_if(false, State) -> - State; -sync_if(_Bool, State = #qistate { journal_handle = undefined }) -> - State; -sync_if(true, State = #qistate { journal_handle = JournalHdl }) -> - ok = file_handle_cache:sync(JournalHdl), - notify_sync(State). - -notify_sync(State = #qistate { unsynced_msg_ids = UG, on_sync = OnSyncFun }) -> - OnSyncFun(gb_sets:from_list(UG)), - State #qistate { unsynced_msg_ids = [] }. - -%%---------------------------------------------------------------------------- -%% segment manipulation -%%---------------------------------------------------------------------------- - -seq_id_to_seg_and_rel_seq_id(SeqId) -> - { SeqId div ?SEGMENT_ENTRY_COUNT, SeqId rem ?SEGMENT_ENTRY_COUNT }. - -reconstruct_seq_id(Seg, RelSeq) -> - (Seg * ?SEGMENT_ENTRY_COUNT) + RelSeq. - -all_segment_nums(#qistate { dir = Dir, segments = Segments }) -> - lists:sort( - sets:to_list( - lists:foldl( - fun (SegName, Set) -> - sets:add_element( - list_to_integer( - lists:takewhile(fun (C) -> $0 =< C andalso C =< $9 end, - SegName)), Set) - end, sets:from_list(segment_nums(Segments)), - filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)))). - -segment_find_or_new(Seg, Dir, Segments) -> - case segment_find(Seg, Segments) of - {ok, Segment} -> Segment; - error -> SegName = integer_to_list(Seg) ++ ?SEGMENT_EXTENSION, - Path = filename:join(Dir, SegName), - #segment { num = Seg, - path = Path, - journal_entries = array_new(), - unacked = 0 } - end. - -segment_find(Seg, {_Segments, [Segment = #segment { num = Seg } |_]}) -> - {ok, Segment}; %% 1 or (2, matches head) -segment_find(Seg, {_Segments, [_, Segment = #segment { num = Seg }]}) -> - {ok, Segment}; %% 2, matches tail -segment_find(Seg, {Segments, _}) -> %% no match - dict:find(Seg, Segments). - -segment_store(Segment = #segment { num = Seg }, %% 1 or (2, matches head) - {Segments, [#segment { num = Seg } | Tail]}) -> - {Segments, [Segment | Tail]}; -segment_store(Segment = #segment { num = Seg }, %% 2, matches tail - {Segments, [SegmentA, #segment { num = Seg }]}) -> - {Segments, [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, {Segments, []}) -> - {dict:erase(Seg, Segments), [Segment]}; -segment_store(Segment = #segment { num = Seg }, {Segments, [SegmentA]}) -> - {dict:erase(Seg, Segments), [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, - {Segments, [SegmentA, SegmentB]}) -> - {dict:store(SegmentB#segment.num, SegmentB, dict:erase(Seg, Segments)), - [Segment, SegmentA]}. - -segment_fold(Fun, Acc, {Segments, CachedSegments}) -> - dict:fold(fun (_Seg, Segment, Acc1) -> Fun(Segment, Acc1) end, - lists:foldl(Fun, Acc, CachedSegments), Segments). - -segment_map(Fun, {Segments, CachedSegments}) -> - {dict:map(fun (_Seg, Segment) -> Fun(Segment) end, Segments), - lists:map(Fun, CachedSegments)}. - -segment_nums({Segments, CachedSegments}) -> - lists:map(fun (#segment { num = Num }) -> Num end, CachedSegments) ++ - dict:fetch_keys(Segments). - -segments_new() -> - {dict:new(), []}. - -write_entry_to_segment(_RelSeq, {?PUB, del, ack}, Hdl) -> - Hdl; -write_entry_to_segment(RelSeq, {Pub, Del, Ack}, Hdl) -> - ok = case Pub of - no_pub -> - ok; - {MsgId, MsgProps, IsPersistent} -> - file_handle_cache:append( - Hdl, [<>, - create_pub_record_body(MsgId, MsgProps)]) - end, - ok = case {Del, Ack} of - {no_del, no_ack} -> - ok; - _ -> - Binary = <>, - file_handle_cache:append( - Hdl, case {Del, Ack} of - {del, ack} -> [Binary, Binary]; - _ -> Binary - end) - end, - Hdl. - -read_bounded_segment(Seg, {StartSeg, StartRelSeq}, {EndSeg, EndRelSeq}, - {Messages, Segments}, Dir) -> - Segment = segment_find_or_new(Seg, Dir, Segments), - {segment_entries_foldr( - fun (RelSeq, {{MsgId, MsgProps, IsPersistent}, IsDelivered, no_ack}, Acc) - when (Seg > StartSeg orelse StartRelSeq =< RelSeq) andalso - (Seg < EndSeg orelse EndRelSeq >= RelSeq) -> - [ {MsgId, reconstruct_seq_id(StartSeg, RelSeq), MsgProps, - IsPersistent, IsDelivered == del} | Acc ]; - (_RelSeq, _Value, Acc) -> - Acc - end, Messages, Segment), - segment_store(Segment, Segments)}. - -segment_entries_foldr(Fun, Init, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, _UnackedCount} = load_segment(false, Segment), - {SegEntries1, _UnackedCountD} = segment_plus_journal(SegEntries, JEntries), - array:sparse_foldr(Fun, Init, SegEntries1). - -%% Loading segments -%% -%% Does not do any combining with the journal at all. -load_segment(KeepAcked, #segment { path = Path }) -> - case filelib:is_file(Path) of - false -> {array_new(), 0}; - true -> {ok, Hdl} = file_handle_cache:open(Path, ?READ_AHEAD_MODE, []), - {ok, 0} = file_handle_cache:position(Hdl, bof), - {ok, SegData} = file_handle_cache:read( - Hdl, ?SEGMENT_TOTAL_SIZE), - Res = load_segment_entries(KeepAcked, SegData, array_new(), 0), - ok = file_handle_cache:close(Hdl), - Res - end. - -load_segment_entries(KeepAcked, - <>, - SegEntries, UnackedCount) -> - {MsgId, MsgProps} = parse_pub_record_body(PubRecordBody), - Obj = {{MsgId, MsgProps, 1 == IsPersistentNum}, no_del, no_ack}, - SegEntries1 = array:set(RelSeq, Obj, SegEntries), - load_segment_entries(KeepAcked, SegData, SegEntries1, UnackedCount + 1); -load_segment_entries(KeepAcked, - <>, - SegEntries, UnackedCount) -> - {UnackedCountDelta, SegEntries1} = - case array:get(RelSeq, SegEntries) of - {Pub, no_del, no_ack} -> - { 0, array:set(RelSeq, {Pub, del, no_ack}, SegEntries)}; - {Pub, del, no_ack} when KeepAcked -> - {-1, array:set(RelSeq, {Pub, del, ack}, SegEntries)}; - {_Pub, del, no_ack} -> - {-1, array:reset(RelSeq, SegEntries)} - end, - load_segment_entries(KeepAcked, SegData, SegEntries1, - UnackedCount + UnackedCountDelta); -load_segment_entries(_KeepAcked, _SegData, SegEntries, UnackedCount) -> - {SegEntries, UnackedCount}. - -array_new() -> - array:new([{default, undefined}, fixed, {size, ?SEGMENT_ENTRY_COUNT}]). - -bool_to_int(true ) -> 1; -bool_to_int(false) -> 0. - -%%---------------------------------------------------------------------------- -%% journal & segment combination -%%---------------------------------------------------------------------------- - -%% Combine what we have just read from a segment file with what we're -%% holding for that segment in memory. There must be no duplicates. -segment_plus_journal(SegEntries, JEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {SegEntriesOut, AdditionalUnacked}) -> - SegEntry = array:get(RelSeq, SegEntriesOut), - {Obj, AdditionalUnackedDelta} = - segment_plus_journal1(SegEntry, JObj), - {case Obj of - undefined -> array:reset(RelSeq, SegEntriesOut); - _ -> array:set(RelSeq, Obj, SegEntriesOut) - end, - AdditionalUnacked + AdditionalUnackedDelta} - end, {SegEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item which we may be adding to (for items only in the journal), -%% modifying in (bits in both), or, when returning 'undefined', -%% erasing from (ack in journal, not segment) the segment array. The -%% other element of the tuple is the delta for AdditionalUnacked. -segment_plus_journal1(undefined, {?PUB, no_del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, ack}) -> - {undefined, 0}; - -segment_plus_journal1({?PUB = Pub, no_del, no_ack}, {no_pub, del, no_ack}) -> - {{Pub, del, no_ack}, 0}; -segment_plus_journal1({?PUB, no_del, no_ack}, {no_pub, del, ack}) -> - {undefined, -1}; -segment_plus_journal1({?PUB, del, no_ack}, {no_pub, no_del, ack}) -> - {undefined, -1}. - -%% Remove from the journal entries for a segment, items that are -%% duplicates of entries found in the segment itself. Used on start up -%% to clean up the journal. -journal_minus_segment(JEntries, SegEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {JEntriesOut, UnackedRemoved}) -> - SegEntry = array:get(RelSeq, SegEntries), - {Obj, UnackedRemovedDelta} = - journal_minus_segment1(JObj, SegEntry), - {case Obj of - keep -> JEntriesOut; - undefined -> array:reset(RelSeq, JEntriesOut); - _ -> array:set(RelSeq, Obj, JEntriesOut) - end, - UnackedRemoved + UnackedRemovedDelta} - end, {JEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item we are adding to or modifying in the (initially fresh) journal -%% array. If the item is 'undefined' we leave the journal array -%% alone. The other element of the tuple is the deltas for -%% UnackedRemoved. - -%% Both the same. Must be at least the publish -journal_minus_segment1({?PUB, _Del, no_ack} = Obj, Obj) -> - {undefined, 1}; -journal_minus_segment1({?PUB, _Del, ack} = Obj, Obj) -> - {undefined, 0}; - -%% Just publish in journal -journal_minus_segment1({?PUB, no_del, no_ack}, undefined) -> - {keep, 0}; - -%% Publish and deliver in journal -journal_minus_segment1({?PUB, del, no_ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, no_ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, no_ack}, 1}; - -%% Publish, deliver and ack in journal -journal_minus_segment1({?PUB, del, ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, ack}, 1}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, del, no_ack}) -> - {{no_pub, no_del, ack}, 1}; - -%% Just deliver in journal -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, del, no_ack}) -> - {undefined, 0}; - -%% Just ack in journal -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, ack}) -> - {undefined, -1}; - -%% Deliver and ack in journal -journal_minus_segment1({no_pub, del, ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, no_ack}) -> - {{no_pub, no_del, ack}, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, ack}) -> - {undefined, -1}. - -%%---------------------------------------------------------------------------- -%% upgrade -%%---------------------------------------------------------------------------- - -add_queue_ttl() -> - foreach_queue_index({fun add_queue_ttl_journal/1, - fun add_queue_ttl_segment/1}). - -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {[<>, MsgId, - expiry_to_binary(undefined)], Rest}; -add_queue_ttl_journal(_) -> - stop. - -add_queue_ttl_segment(<>) -> - {[<>, - MsgId, expiry_to_binary(undefined)], Rest}; -add_queue_ttl_segment(<>) -> - {<>, - Rest}; -add_queue_ttl_segment(_) -> - stop. - -%%---------------------------------------------------------------------------- - -foreach_queue_index(Funs) -> - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> - transform_queue(filename:join(QueuesDir, QueueDirName), - Gatherer, Funs) - end) - end || QueueDirName <- QueueDirNames], - empty = gatherer:out(Gatherer), - unlink(Gatherer), - ok = gatherer:stop(Gatherer). - -transform_queue(Dir, Gatherer, {JournalFun, SegmentFun}) -> - ok = transform_file(filename:join(Dir, ?JOURNAL_FILENAME), JournalFun), - [ok = transform_file(filename:join(Dir, Seg), SegmentFun) - || Seg <- filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)], - ok = gatherer:finish(Gatherer). - -transform_file(Path, Fun) -> - PathTmp = Path ++ ".upgrade", - case filelib:file_size(Path) of - 0 -> ok; - Size -> {ok, PathTmpHdl} = - file_handle_cache:open(PathTmp, ?WRITE_MODE, - [{write_buffer, infinity}]), - - {ok, PathHdl} = file_handle_cache:open( - Path, [{read_ahead, Size} | ?READ_MODE], []), - {ok, Content} = file_handle_cache:read(PathHdl, Size), - ok = file_handle_cache:close(PathHdl), - - ok = drive_transform_fun(Fun, PathTmpHdl, Content), - - ok = file_handle_cache:close(PathTmpHdl), - ok = file:rename(PathTmp, Path) - end. - -drive_transform_fun(Fun, Hdl, Contents) -> - case Fun(Contents) of - stop -> ok; - {Output, Contents1} -> ok = file_handle_cache:append(Hdl, Output), - drive_transform_fun(Fun, Hdl, Contents1) - end. diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl deleted file mode 100644 index 11ad62e0..00000000 --- a/src/rabbit_reader.erl +++ /dev/null @@ -1,938 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_reader). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([start_link/3, info_keys/0, info/1, info/2, shutdown/2]). - --export([system_continue/3, system_terminate/4, system_code_change/4]). - --export([init/4, mainloop/2]). - --export([conserve_memory/2, server_properties/1]). - --export([process_channel_frame/5]). %% used by erlang-client - --export([emit_stats/1, force_event_refresh/1]). - --define(HANDSHAKE_TIMEOUT, 10). --define(NORMAL_TIMEOUT, 3). --define(CLOSING_TIMEOUT, 1). --define(CHANNEL_TERMINATION_TIMEOUT, 3). --define(SILENT_CLOSE_DELAY, 3). - -%%-------------------------------------------------------------------------- - --record(v1, {parent, sock, connection, callback, recv_len, pending_recv, - connection_state, queue_collector, heartbeater, stats_timer, - channel_sup_sup_pid, start_heartbeat_fun, buf, buf_len, - auth_mechanism, auth_state}). - --define(STATISTICS_KEYS, [pid, recv_oct, recv_cnt, send_oct, send_cnt, - send_pend, state, channels]). - --define(CREATION_EVENT_KEYS, [pid, address, port, peer_address, peer_port, ssl, - peer_cert_subject, peer_cert_issuer, - peer_cert_validity, auth_mechanism, - ssl_protocol, ssl_key_exchange, - ssl_cipher, ssl_hash, - protocol, user, vhost, timeout, frame_max, - client_properties]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - --define(IS_RUNNING(State), - (State#v1.connection_state =:= running orelse - State#v1.connection_state =:= blocking orelse - State#v1.connection_state =:= blocked)). - -%%-------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/3 :: (pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) -> - rabbit_types:ok(pid())). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(force_event_refresh/1 :: (pid()) -> 'ok'). --spec(shutdown/2 :: (pid(), string()) -> 'ok'). --spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok'). --spec(server_properties/1 :: (rabbit_types:protocol()) -> - rabbit_framing:amqp_table()). - -%% These specs only exists to add no_return() to keep dialyzer happy --spec(init/4 :: (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) - -> no_return()). --spec(start_connection/7 :: - (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun(), any(), - rabbit_net:socket(), - fun ((rabbit_net:socket()) -> - rabbit_types:ok_or_error2( - rabbit_net:socket(), any()))) -> no_return()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link(ChannelSupSupPid, Collector, StartHeartbeatFun) -> - {ok, proc_lib:spawn_link(?MODULE, init, [self(), ChannelSupSupPid, - Collector, StartHeartbeatFun])}. - -shutdown(Pid, Explanation) -> - gen_server:call(Pid, {shutdown, Explanation}, infinity). - -init(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun) -> - ok = pg2_fixed:join(rabbit_network_connections, self()), - Deb = sys:debug_options([]), - receive - {go, Sock, SockTransform} -> - start_connection( - Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, Sock, - SockTransform) - end. - -system_continue(Parent, Deb, State) -> - ?MODULE:mainloop(Deb, State#v1{parent = Parent}). - -system_terminate(Reason, _Parent, _Deb, _State) -> - exit(Reason). - -system_code_change(Misc, _Module, _OldVsn, _Extra) -> - {ok, Misc}. - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -emit_stats(Pid) -> - gen_server:cast(Pid, emit_stats). - -force_event_refresh(Pid) -> - gen_server:cast(Pid, force_event_refresh). - -conserve_memory(Pid, Conserve) -> - Pid ! {conserve_memory, Conserve}, - ok. - -server_properties(Protocol) -> - {ok, Product} = application:get_key(rabbit, id), - {ok, Version} = application:get_key(rabbit, vsn), - - %% Get any configuration-specified server properties - {ok, RawConfigServerProps} = application:get_env(rabbit, - server_properties), - - %% Normalize the simplifed (2-tuple) and unsimplified (3-tuple) forms - %% from the config and merge them with the generated built-in properties - NormalizedConfigServerProps = - [{<<"capabilities">>, table, server_capabilities(Protocol)} | - [case X of - {KeyAtom, Value} -> {list_to_binary(atom_to_list(KeyAtom)), - longstr, - list_to_binary(Value)}; - {BinKey, Type, Value} -> {BinKey, Type, Value} - end || X <- RawConfigServerProps ++ - [{product, Product}, - {version, Version}, - {platform, "Erlang/OTP"}, - {copyright, ?COPYRIGHT_MESSAGE}, - {information, ?INFORMATION_MESSAGE}]]], - - %% Filter duplicated properties in favour of config file provided values - lists:usort(fun ({K1,_,_}, {K2,_,_}) -> K1 =< K2 end, - NormalizedConfigServerProps). - -server_capabilities(rabbit_framing_amqp_0_9_1) -> - [{<<"publisher_confirms">>, bool, true}, - {<<"exchange_exchange_bindings">>, bool, true}, - {<<"basic.nack">>, bool, true}, - {<<"consumer_cancel_notify">>, bool, true}]; -server_capabilities(_) -> - []. - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -socket_op(Sock, Fun) -> - case Fun(Sock) of - {ok, Res} -> Res; - {error, Reason} -> rabbit_log:error("error on TCP connection ~p:~p~n", - [self(), Reason]), - rabbit_log:info("closing TCP connection ~p~n", - [self()]), - exit(normal) - end. - -start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, - Sock, SockTransform) -> - process_flag(trap_exit, true), - {PeerAddress, PeerPort} = socket_op(Sock, fun rabbit_net:peername/1), - PeerAddressS = rabbit_misc:ntoab(PeerAddress), - rabbit_log:info("starting TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - ClientSock = socket_op(Sock, SockTransform), - erlang:send_after(?HANDSHAKE_TIMEOUT * 1000, self(), - handshake_timeout), - try - recvloop(Deb, switch_callback( - #v1{parent = Parent, - sock = ClientSock, - connection = #connection{ - protocol = none, - user = none, - timeout_sec = ?HANDSHAKE_TIMEOUT, - frame_max = ?FRAME_MIN_SIZE, - vhost = none, - client_properties = none, - capabilities = []}, - callback = uninitialized_callback, - recv_len = 0, - pending_recv = false, - connection_state = pre_init, - queue_collector = Collector, - heartbeater = none, - stats_timer = - rabbit_event:init_stats_timer(), - channel_sup_sup_pid = ChannelSupSupPid, - start_heartbeat_fun = StartHeartbeatFun, - buf = [], - buf_len = 0, - auth_mechanism = none, - auth_state = none - }, - handshake, 8)) - catch - Ex -> (if Ex == connection_closed_abruptly -> - fun rabbit_log:warning/2; - true -> - fun rabbit_log:error/2 - end)("exception on TCP connection ~p from ~s:~p~n~p~n", - [self(), PeerAddressS, PeerPort, Ex]) - after - rabbit_log:info("closing TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - %% We don't close the socket explicitly. The reader is the - %% controlling process and hence its termination will close - %% the socket. Furthermore, gen_tcp:close/1 waits for pending - %% output to be sent, which results in unnecessary delays. - %% - %% gen_tcp:close(ClientSock), - rabbit_event:notify(connection_closed, [{pid, self()}]) - end, - done. - -recvloop(Deb, State = #v1{pending_recv = true}) -> - mainloop(Deb, State); -recvloop(Deb, State = #v1{connection_state = blocked}) -> - mainloop(Deb, State); -recvloop(Deb, State = #v1{sock = Sock, recv_len = RecvLen, buf_len = BufLen}) - when BufLen < RecvLen -> - ok = rabbit_net:setopts(Sock, [{active, once}]), - mainloop(Deb, State#v1{pending_recv = true}); -recvloop(Deb, State = #v1{recv_len = RecvLen, buf = Buf, buf_len = BufLen}) -> - {Data, Rest} = split_binary(case Buf of - [B] -> B; - _ -> list_to_binary(lists:reverse(Buf)) - end, RecvLen), - recvloop(Deb, handle_input(State#v1.callback, Data, - State#v1{buf = [Rest], - buf_len = BufLen - RecvLen})). - -mainloop(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen}) -> - case rabbit_net:recv(Sock) of - {data, Data} -> recvloop(Deb, State#v1{buf = [Data | Buf], - buf_len = BufLen + size(Data), - pending_recv = false}); - closed -> if State#v1.connection_state =:= closed -> - State; - true -> - throw(connection_closed_abruptly) - end; - {error, Reason} -> throw({inet_error, Reason}); - {other, Other} -> handle_other(Other, Deb, State) - end. - -handle_other({conserve_memory, Conserve}, Deb, State) -> - recvloop(Deb, internal_conserve_memory(Conserve, State)); -handle_other({channel_closing, ChPid}, Deb, State) -> - ok = rabbit_channel:ready_for_close(ChPid), - channel_cleanup(ChPid), - mainloop(Deb, State); -handle_other({'EXIT', Parent, Reason}, _Deb, State = #v1{parent = Parent}) -> - terminate(io_lib:format("broker forced connection closure " - "with reason '~w'", [Reason]), State), - %% this is what we are expected to do according to - %% http://www.erlang.org/doc/man/sys.html - %% - %% If we wanted to be *really* nice we should wait for a while for - %% clients to close the socket at their end, just as we do in the - %% ordinary error case. However, since this termination is - %% initiated by our parent it is probably more important to exit - %% quickly. - exit(Reason); -handle_other({channel_exit, _Channel, E = {writer, send_failed, _Error}}, - _Deb, _State) -> - throw(E); -handle_other({channel_exit, Channel, Reason}, Deb, State) -> - mainloop(Deb, handle_exception(State, Channel, Reason)); -handle_other({'DOWN', _MRef, process, ChPid, Reason}, Deb, State) -> - mainloop(Deb, handle_dependent_exit(ChPid, Reason, State)); -handle_other(terminate_connection, _Deb, State) -> - State; -handle_other(handshake_timeout, Deb, State) - when ?IS_RUNNING(State) orelse - State#v1.connection_state =:= closing orelse - State#v1.connection_state =:= closed -> - mainloop(Deb, State); -handle_other(handshake_timeout, _Deb, State) -> - throw({handshake_timeout, State#v1.callback}); -handle_other(timeout, Deb, State = #v1{connection_state = closed}) -> - mainloop(Deb, State); -handle_other(timeout, _Deb, #v1{connection_state = S}) -> - throw({timeout, S}); -handle_other({'$gen_call', From, {shutdown, Explanation}}, Deb, State) -> - {ForceTermination, NewState} = terminate(Explanation, State), - gen_server:reply(From, ok), - case ForceTermination of - force -> ok; - normal -> mainloop(Deb, NewState) - end; -handle_other({'$gen_call', From, info}, Deb, State) -> - gen_server:reply(From, infos(?INFO_KEYS, State)), - mainloop(Deb, State); -handle_other({'$gen_call', From, {info, Items}}, Deb, State) -> - gen_server:reply(From, try {ok, infos(Items, State)} - catch Error -> {error, Error} - end), - mainloop(Deb, State); -handle_other({'$gen_cast', emit_stats}, Deb, State) -> - mainloop(Deb, internal_emit_stats(State)); -handle_other({'$gen_cast', force_event_refresh}, Deb, State) -> - rabbit_event:notify(connection_exists, - [{type, network} | - infos(?CREATION_EVENT_KEYS, State)]), - mainloop(Deb, State); -handle_other({system, From, Request}, Deb, State = #v1{parent = Parent}) -> - sys:handle_system_msg(Request, From, Parent, ?MODULE, Deb, State); -handle_other(Other, _Deb, _State) -> - %% internal error -> something worth dying for - exit({unexpected_message, Other}). - -switch_callback(State = #v1{connection_state = blocked, - heartbeater = Heartbeater}, Callback, Length) -> - ok = rabbit_heartbeat:pause_monitor(Heartbeater), - State#v1{callback = Callback, recv_len = Length}; -switch_callback(State, Callback, Length) -> - State#v1{callback = Callback, recv_len = Length}. - -terminate(Explanation, State) when ?IS_RUNNING(State) -> - {normal, send_exception(State, 0, - rabbit_misc:amqp_error( - connection_forced, Explanation, [], none))}; -terminate(_Explanation, State) -> - {force, State}. - -internal_conserve_memory(true, State = #v1{connection_state = running}) -> - State#v1{connection_state = blocking}; -internal_conserve_memory(false, State = #v1{connection_state = blocking}) -> - State#v1{connection_state = running}; -internal_conserve_memory(false, State = #v1{connection_state = blocked, - heartbeater = Heartbeater}) -> - ok = rabbit_heartbeat:resume_monitor(Heartbeater), - State#v1{connection_state = running}; -internal_conserve_memory(_Conserve, State) -> - State. - -close_connection(State = #v1{queue_collector = Collector, - connection = #connection{ - timeout_sec = TimeoutSec}}) -> - %% The spec says "Exclusive queues may only be accessed by the - %% current connection, and are deleted when that connection - %% closes." This does not strictly imply synchrony, but in - %% practice it seems to be what people assume. - rabbit_queue_collector:delete_all(Collector), - %% We terminate the connection after the specified interval, but - %% no later than ?CLOSING_TIMEOUT seconds. - TimeoutMillisec = - 1000 * if TimeoutSec > 0 andalso - TimeoutSec < ?CLOSING_TIMEOUT -> TimeoutSec; - true -> ?CLOSING_TIMEOUT - end, - erlang:send_after(TimeoutMillisec, self(), terminate_connection), - State#v1{connection_state = closed}. - -handle_dependent_exit(ChPid, Reason, State) -> - case termination_kind(Reason) of - controlled -> - channel_cleanup(ChPid), - maybe_close(State); - uncontrolled -> - case channel_cleanup(ChPid) of - undefined -> exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> rabbit_log:error( - "connection ~p, channel ~p - error:~n~p~n", - [self(), Channel, Reason]), - maybe_close( - handle_exception(State, Channel, Reason)) - end - end. - -channel_cleanup(ChPid) -> - case get({ch_pid, ChPid}) of - undefined -> undefined; - {Channel, MRef} -> erase({channel, Channel}), - erase({ch_pid, ChPid}), - erlang:demonitor(MRef, [flush]), - Channel - end. - -all_channels() -> [ChPid || {{ch_pid, ChPid}, _ChannelMRef} <- get()]. - -terminate_channels() -> - NChannels = - length([rabbit_channel:shutdown(ChPid) || ChPid <- all_channels()]), - if NChannels > 0 -> - Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, - TimerRef = erlang:send_after(Timeout, self(), cancel_wait), - wait_for_channel_termination(NChannels, TimerRef); - true -> ok - end. - -wait_for_channel_termination(0, TimerRef) -> - case erlang:cancel_timer(TimerRef) of - false -> receive - cancel_wait -> ok - end; - _ -> ok - end; - -wait_for_channel_termination(N, TimerRef) -> - receive - {'DOWN', _MRef, process, ChPid, Reason} -> - case channel_cleanup(ChPid) of - undefined -> - exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> - case termination_kind(Reason) of - controlled -> - ok; - uncontrolled -> - rabbit_log:error( - "connection ~p, channel ~p - " - "error while terminating:~n~p~n", - [self(), Channel, Reason]) - end, - wait_for_channel_termination(N-1, TimerRef) - end; - cancel_wait -> - exit(channel_termination_timeout) - end. - -maybe_close(State = #v1{connection_state = closing, - connection = #connection{protocol = Protocol}, - sock = Sock}) -> - case all_channels() of - [] -> - NewState = close_connection(State), - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - NewState; - _ -> State - end; -maybe_close(State) -> - State. - -termination_kind(normal) -> controlled; -termination_kind(_) -> uncontrolled. - -handle_frame(Type, 0, Payload, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}}) - when CS =:= closing; CS =:= closed -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - _Other -> State - end; -handle_frame(_Type, _Channel, _Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_frame(Type, 0, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, 0, Type, Payload}); - heartbeat -> State; - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - Other -> throw({unexpected_frame_on_channel0, Other}) - end; -handle_frame(Type, Channel, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, Channel, Type, Payload}); - heartbeat -> throw({unexpected_heartbeat_frame, Channel}); - AnalyzedFrame -> - case get({channel, Channel}) of - {ChPid, FramingState} -> - NewAState = process_channel_frame( - AnalyzedFrame, self(), - Channel, ChPid, FramingState), - put({channel, Channel}, {ChPid, NewAState}), - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - channel_cleanup(ChPid), - State; - {method, MethodName, _} -> - case (State#v1.connection_state =:= blocking - andalso - Protocol:method_has_content(MethodName)) of - true -> State#v1{connection_state = blocked}; - false -> State - end; - _ -> - State - end; - undefined -> - case ?IS_RUNNING(State) of - true -> send_to_new_channel( - Channel, AnalyzedFrame, State); - false -> throw({channel_frame_while_starting, - Channel, State#v1.connection_state, - AnalyzedFrame}) - end - end - end. - -handle_input(frame_header, <>, State) -> - ensure_stats_timer( - switch_callback(State, {frame_payload, Type, Channel, PayloadSize}, - PayloadSize + 1)); - -handle_input({frame_payload, Type, Channel, PayloadSize}, - PayloadAndMarker, State) -> - case PayloadAndMarker of - <> -> - switch_callback(handle_frame(Type, Channel, Payload, State), - frame_header, 7); - _ -> - throw({bad_payload, Type, Channel, PayloadSize, PayloadAndMarker}) - end; - -%% The two rules pertaining to version negotiation: -%% -%% * If the server cannot support the protocol specified in the -%% protocol header, it MUST respond with a valid protocol header and -%% then close the socket connection. -%% -%% * The server MUST provide a protocol version that is lower than or -%% equal to that requested by the client in the protocol header. -handle_input(handshake, <<"AMQP", 0, 0, 9, 1>>, State) -> - start_connection({0, 9, 1}, rabbit_framing_amqp_0_9_1, State); - -%% This is the protocol header for 0-9, which we can safely treat as -%% though it were 0-9-1. -handle_input(handshake, <<"AMQP", 1, 1, 0, 9>>, State) -> - start_connection({0, 9, 0}, rabbit_framing_amqp_0_9_1, State); - -%% This is what most clients send for 0-8. The 0-8 spec, confusingly, -%% defines the version as 8-0. -handle_input(handshake, <<"AMQP", 1, 1, 8, 0>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -%% The 0-8 spec as on the AMQP web site actually has this as the -%% protocol header; some libraries e.g., py-amqplib, send it when they -%% want 0-8. -handle_input(handshake, <<"AMQP", 1, 1, 9, 1>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -handle_input(handshake, <<"AMQP", A, B, C, D>>, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_version, A, B, C, D}); - -handle_input(handshake, Other, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_header, Other}); - -handle_input(Callback, Data, _State) -> - throw({bad_input, Callback, Data}). - -%% Offer a protocol version to the client. Connection.start only -%% includes a major and minor version number, Luckily 0-9 and 0-9-1 -%% are similar enough that clients will be happy with either. -start_connection({ProtocolMajor, ProtocolMinor, _ProtocolRevision}, - Protocol, - State = #v1{sock = Sock, connection = Connection}) -> - Start = #'connection.start'{ - version_major = ProtocolMajor, - version_minor = ProtocolMinor, - server_properties = server_properties(Protocol), - mechanisms = auth_mechanisms_binary(Sock), - locales = <<"en_US">> }, - ok = send_on_channel0(Sock, Start, Protocol), - switch_callback(State#v1{connection = Connection#connection{ - timeout_sec = ?NORMAL_TIMEOUT, - protocol = Protocol}, - connection_state = starting}, - frame_header, 7). - -refuse_connection(Sock, Exception) -> - ok = inet_op(fun () -> rabbit_net:send(Sock, <<"AMQP",0,0,9,1>>) end), - throw(Exception). - -ensure_stats_timer(State = #v1{stats_timer = StatsTimer, - connection_state = running}) -> - Self = self(), - State#v1{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(Self) end)}; -ensure_stats_timer(State) -> - State. - -%%-------------------------------------------------------------------------- - -handle_method0(MethodName, FieldsBin, - State = #v1{connection = #connection{protocol = Protocol}}) -> - HandleException = - fun(R) -> - case ?IS_RUNNING(State) of - true -> send_exception(State, 0, R); - %% We don't trust the client at this point - force - %% them to wait for a bit so they can't DOS us with - %% repeated failed logins etc. - false -> timer:sleep(?SILENT_CLOSE_DELAY * 1000), - throw({channel0_error, State#v1.connection_state, R}) - end - end, - try - handle_method0(Protocol:decode_method_fields(MethodName, FieldsBin), - State) - catch exit:#amqp_error{method = none} = Reason -> - HandleException(Reason#amqp_error{method = MethodName}); - Type:Reason -> - HandleException({Type, Reason, MethodName, erlang:get_stacktrace()}) - end. - -handle_method0(#'connection.start_ok'{mechanism = Mechanism, - response = Response, - client_properties = ClientProperties}, - State0 = #v1{connection_state = starting, - connection = Connection, - sock = Sock}) -> - AuthMechanism = auth_mechanism_to_module(Mechanism, Sock), - Capabilities = - case rabbit_misc:table_lookup(ClientProperties, <<"capabilities">>) of - {table, Capabilities1} -> Capabilities1; - _ -> [] - end, - State = State0#v1{auth_mechanism = AuthMechanism, - auth_state = AuthMechanism:init(Sock), - connection_state = securing, - connection = - Connection#connection{ - client_properties = ClientProperties, - capabilities = Capabilities}}, - auth_phase(Response, State); - -handle_method0(#'connection.secure_ok'{response = Response}, - State = #v1{connection_state = securing}) -> - auth_phase(Response, State); - -handle_method0(#'connection.tune_ok'{frame_max = FrameMax, - heartbeat = ClientHeartbeat}, - State = #v1{connection_state = tuning, - connection = Connection, - sock = Sock, - start_heartbeat_fun = SHF}) -> - ServerFrameMax = server_frame_max(), - if FrameMax /= 0 andalso FrameMax < ?FRAME_MIN_SIZE -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w < ~w min size", - [FrameMax, ?FRAME_MIN_SIZE]); - ServerFrameMax /= 0 andalso FrameMax > ServerFrameMax -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w > ~w max size", - [FrameMax, ServerFrameMax]); - true -> - Frame = rabbit_binary_generator:build_heartbeat_frame(), - SendFun = fun() -> catch rabbit_net:send(Sock, Frame) end, - Parent = self(), - ReceiveFun = fun() -> Parent ! timeout end, - Heartbeater = SHF(Sock, ClientHeartbeat, SendFun, - ClientHeartbeat, ReceiveFun), - State#v1{connection_state = opening, - connection = Connection#connection{ - timeout_sec = ClientHeartbeat, - frame_max = FrameMax}, - heartbeater = Heartbeater} - end; - -handle_method0(#'connection.open'{virtual_host = VHostPath}, - State = #v1{connection_state = opening, - connection = Connection = #connection{ - user = User, - protocol = Protocol}, - sock = Sock, - stats_timer = StatsTimer}) -> - ok = rabbit_access_control:check_vhost_access(User, VHostPath), - NewConnection = Connection#connection{vhost = VHostPath}, - ok = send_on_channel0(Sock, #'connection.open_ok'{}, Protocol), - State1 = internal_conserve_memory( - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - State#v1{connection_state = running, - connection = NewConnection}), - rabbit_event:notify(connection_created, - [{type, network} | - infos(?CREATION_EVENT_KEYS, State1)]), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State1) end), - State1; -handle_method0(#'connection.close'{}, State) when ?IS_RUNNING(State) -> - lists:foreach(fun rabbit_channel:shutdown/1, all_channels()), - maybe_close(State#v1{connection_state = closing}); -handle_method0(#'connection.close'{}, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}, - sock = Sock}) - when CS =:= closing; CS =:= closed -> - %% We're already closed or closing, so we don't need to cleanup - %% anything. - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - State; -handle_method0(#'connection.close_ok'{}, - State = #v1{connection_state = closed}) -> - self() ! terminate_connection, - State; -handle_method0(_Method, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_method0(_Method, #v1{connection_state = S}) -> - rabbit_misc:protocol_error( - channel_error, "unexpected method in connection state ~w", [S]). - -%% Compute frame_max for this instance. Could simply use 0, but breaks -%% QPid Java client. -server_frame_max() -> - {ok, FrameMax} = application:get_env(rabbit, frame_max), - FrameMax. - -send_on_channel0(Sock, Method, Protocol) -> - ok = rabbit_writer:internal_send_command(Sock, 0, Method, Protocol). - -auth_mechanism_to_module(TypeBin, Sock) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown authentication mechanism '~s'", - [TypeBin]); - T -> - case {lists:member(T, auth_mechanisms(Sock)), - rabbit_registry:lookup_module(auth_mechanism, T)} of - {true, {ok, Module}} -> - Module; - _ -> - rabbit_misc:protocol_error( - command_invalid, - "invalid authentication mechanism '~s'", [T]) - end - end. - -auth_mechanisms(Sock) -> - {ok, Configured} = application:get_env(auth_mechanisms), - [Name || {Name, Module} <- rabbit_registry:lookup_all(auth_mechanism), - Module:should_offer(Sock), lists:member(Name, Configured)]. - -auth_mechanisms_binary(Sock) -> - list_to_binary( - string:join([atom_to_list(A) || A <- auth_mechanisms(Sock)], " ")). - -auth_phase(Response, - State = #v1{auth_mechanism = AuthMechanism, - auth_state = AuthState, - connection = Connection = - #connection{protocol = Protocol}, - sock = Sock}) -> - case AuthMechanism:handle_response(Response, AuthState) of - {refused, Msg, Args} -> - rabbit_misc:protocol_error( - access_refused, "~s login refused: ~s", - [proplists:get_value(name, AuthMechanism:description()), - io_lib:format(Msg, Args)]); - {protocol_error, Msg, Args} -> - rabbit_misc:protocol_error(syntax_error, Msg, Args); - {challenge, Challenge, AuthState1} -> - Secure = #'connection.secure'{challenge = Challenge}, - ok = send_on_channel0(Sock, Secure, Protocol), - State#v1{auth_state = AuthState1}; - {ok, User} -> - Tune = #'connection.tune'{channel_max = 0, - frame_max = server_frame_max(), - heartbeat = 0}, - ok = send_on_channel0(Sock, Tune, Protocol), - State#v1{connection_state = tuning, - connection = Connection#connection{user = User}} - end. - -%%-------------------------------------------------------------------------- - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, #v1{}) -> - self(); -i(address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({A, _}) -> A end, Sock); -i(port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({_, P}) -> P end, Sock); -i(peer_address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({A, _}) -> A end, Sock); -i(peer_port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({_, P}) -> P end, Sock); -i(ssl, #v1{sock = Sock}) -> - rabbit_net:is_ssl(Sock); -i(ssl_protocol, #v1{sock = Sock}) -> - ssl_info(fun ({P, _}) -> P end, Sock); -i(ssl_key_exchange, #v1{sock = Sock}) -> - ssl_info(fun ({_, {K, _, _}}) -> K end, Sock); -i(ssl_cipher, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, C, _}}) -> C end, Sock); -i(ssl_hash, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, _, H}}) -> H end, Sock); -i(peer_cert_issuer, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_issuer/1, Sock); -i(peer_cert_subject, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_subject/1, Sock); -i(peer_cert_validity, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_validity/1, Sock); -i(SockStat, #v1{sock = Sock}) when SockStat =:= recv_oct; - SockStat =:= recv_cnt; - SockStat =:= send_oct; - SockStat =:= send_cnt; - SockStat =:= send_pend -> - socket_info(fun () -> rabbit_net:getstat(Sock, [SockStat]) end, - fun ([{_, I}]) -> I end); -i(state, #v1{connection_state = S}) -> - S; -i(channels, #v1{}) -> - length(all_channels()); -i(protocol, #v1{connection = #connection{protocol = none}}) -> - none; -i(protocol, #v1{connection = #connection{protocol = Protocol}}) -> - Protocol:version(); -i(auth_mechanism, #v1{auth_mechanism = none}) -> - none; -i(auth_mechanism, #v1{auth_mechanism = Mechanism}) -> - proplists:get_value(name, Mechanism:description()); -i(user, #v1{connection = #connection{user = #user{username = Username}}}) -> - Username; -i(user, #v1{connection = #connection{user = none}}) -> - ''; -i(vhost, #v1{connection = #connection{vhost = VHost}}) -> - VHost; -i(timeout, #v1{connection = #connection{timeout_sec = Timeout}}) -> - Timeout; -i(frame_max, #v1{connection = #connection{frame_max = FrameMax}}) -> - FrameMax; -i(client_properties, #v1{connection = #connection{ - client_properties = ClientProperties}}) -> - ClientProperties; -i(Item, #v1{}) -> - throw({bad_argument, Item}). - -socket_info(Get, Select, Sock) -> - socket_info(fun() -> Get(Sock) end, Select). - -socket_info(Get, Select) -> - case Get() of - {ok, T} -> Select(T); - {error, _} -> '' - end. - -ssl_info(F, Sock) -> - %% The first ok form is R14 - %% The second is R13 - the extra term is exportability (by inspection, - %% the docs are wrong) - case rabbit_net:ssl_info(Sock) of - nossl -> ''; - {error, _} -> ''; - {ok, {P, {K, C, H}}} -> F({P, {K, C, H}}); - {ok, {P, {K, C, H, _}}} -> F({P, {K, C, H}}) - end. - -cert_info(F, Sock) -> - case rabbit_net:peercert(Sock) of - nossl -> ''; - {error, no_peercert} -> ''; - {ok, Cert} -> list_to_binary(F(Cert)) - end. - -%%-------------------------------------------------------------------------- - -send_to_new_channel(Channel, AnalyzedFrame, State) -> - #v1{sock = Sock, queue_collector = Collector, - channel_sup_sup_pid = ChanSupSup, - connection = #connection{protocol = Protocol, - frame_max = FrameMax, - user = User, - vhost = VHost, - capabilities = Capabilities}} = State, - {ok, _ChSupPid, {ChPid, AState}} = - rabbit_channel_sup_sup:start_channel( - ChanSupSup, {tcp, Sock, Channel, FrameMax, self(), Protocol, User, - VHost, Capabilities, Collector}), - MRef = erlang:monitor(process, ChPid), - NewAState = process_channel_frame(AnalyzedFrame, self(), - Channel, ChPid, AState), - put({channel, Channel}, {ChPid, NewAState}), - put({ch_pid, ChPid}, {Channel, MRef}), - State. - -process_channel_frame(Frame, ErrPid, Channel, ChPid, AState) -> - case rabbit_command_assembler:process(Frame, AState) of - {ok, NewAState} -> NewAState; - {ok, Method, NewAState} -> rabbit_channel:do(ChPid, Method), - NewAState; - {ok, Method, Content, NewAState} -> rabbit_channel:do(ChPid, - Method, Content), - NewAState; - {error, Reason} -> ErrPid ! {channel_exit, Channel, - Reason}, - AState - end. - -handle_exception(State = #v1{connection_state = closed}, _Channel, _Reason) -> - State; -handle_exception(State, Channel, Reason) -> - send_exception(State, Channel, Reason). - -send_exception(State = #v1{connection = #connection{protocol = Protocol}}, - Channel, Reason) -> - {0, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - terminate_channels(), - State1 = close_connection(State), - ok = rabbit_writer:internal_send_command( - State1#v1.sock, 0, CloseMethod, Protocol), - State1. - -internal_emit_stats(State = #v1{stats_timer = StatsTimer}) -> - rabbit_event:notify(connection_stats, infos(?STATISTICS_KEYS, State)), - State#v1{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}. diff --git a/src/rabbit_registry.erl b/src/rabbit_registry.erl deleted file mode 100644 index 9821ae7b..00000000 --- a/src/rabbit_registry.erl +++ /dev/null @@ -1,124 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_registry). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --export([register/3, binary_to_type/1, lookup_module/2, lookup_all/1]). - --define(SERVER, ?MODULE). --define(ETS_NAME, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/3 :: (atom(), binary(), atom()) -> 'ok'). --spec(binary_to_type/1 :: - (binary()) -> atom() | rabbit_types:error('not_found')). --spec(lookup_module/2 :: - (atom(), atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). --spec(lookup_all/1 :: (atom()) -> [{atom(), atom()}]). - --endif. - -%%--------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -register(Class, TypeName, ModuleName) -> - gen_server:call(?SERVER, {register, Class, TypeName, ModuleName}, infinity). - -%% This is used with user-supplied arguments (e.g., on exchange -%% declare), so we restrict it to existing atoms only. This means it -%% can throw a badarg, indicating that the type cannot have been -%% registered. -binary_to_type(TypeBin) when is_binary(TypeBin) -> - case catch list_to_existing_atom(binary_to_list(TypeBin)) of - {'EXIT', {badarg, _}} -> {error, not_found}; - TypeAtom -> TypeAtom - end. - -lookup_module(Class, T) when is_atom(T) -> - case ets:lookup(?ETS_NAME, {Class, T}) of - [{_, Module}] -> - {ok, Module}; - [] -> - {error, not_found} - end. - -lookup_all(Class) -> - [{K, V} || [K, V] <- ets:match(?ETS_NAME, {{Class, '$1'}, '$2'})]. - -%%--------------------------------------------------------------------------- - -internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> - list_to_atom(binary_to_list(TypeBin)). - -internal_register(Class, TypeName, ModuleName) - when is_atom(Class), is_binary(TypeName), is_atom(ModuleName) -> - ok = sanity_check_module(class_module(Class), ModuleName), - true = ets:insert(?ETS_NAME, - {{Class, internal_binary_to_type(TypeName)}, ModuleName}), - ok. - -sanity_check_module(ClassModule, Module) -> - case catch lists:member(ClassModule, - lists:flatten( - [Bs || {Attr, Bs} <- - Module:module_info(attributes), - Attr =:= behavior orelse - Attr =:= behaviour])) of - {'EXIT', {undef, _}} -> {error, not_module}; - false -> {error, {not_type, ClassModule}}; - true -> ok - end. - -class_module(exchange) -> rabbit_exchange_type; -class_module(auth_mechanism) -> rabbit_auth_mechanism. - -%%--------------------------------------------------------------------------- - -init([]) -> - ?ETS_NAME = ets:new(?ETS_NAME, [protected, set, named_table]), - {ok, none}. - -handle_call({register, Class, TypeName, ModuleName}, _From, State) -> - ok = internal_register(Class, TypeName, ModuleName), - {reply, ok, State}; - -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_restartable_sup.erl b/src/rabbit_restartable_sup.erl deleted file mode 100644 index 0491244b..00000000 --- a/src/rabbit_restartable_sup.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_restartable_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -start_link(Name, {_M, _F, _A} = Fun) -> - supervisor:start_link({local, Name}, ?MODULE, [Fun]). - -init([{Mod, _F, _A} = Fun]) -> - {ok, {{one_for_one, 10, 10}, - [{Mod, Fun, transient, ?MAX_WAIT, worker, [Mod]}]}}. diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl deleted file mode 100644 index d453a870..00000000 --- a/src/rabbit_router.erl +++ /dev/null @@ -1,140 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_router). --include_lib("stdlib/include/qlc.hrl"). --include("rabbit.hrl"). - --export([deliver/2, match_bindings/2, match_routing_key/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([routing_key/0, routing_result/0, match_result/0]). - --type(routing_key() :: binary()). --type(routing_result() :: 'routed' | 'unroutable' | 'not_delivered'). --type(qpids() :: [pid()]). --type(match_result() :: [rabbit_types:binding_destination()]). - --spec(deliver/2 :: ([rabbit_amqqueue:name()], rabbit_types:delivery()) -> - {routing_result(), qpids()}). --spec(match_bindings/2 :: (rabbit_types:binding_source(), - fun ((rabbit_types:binding()) -> boolean())) -> - match_result()). --spec(match_routing_key/2 :: (rabbit_types:binding_source(), - [routing_key()] | ['_']) -> - match_result()). - --endif. - -%%---------------------------------------------------------------------------- - -deliver(QNames, Delivery = #delivery{mandatory = false, - immediate = false}) -> - %% optimisation: when Mandatory = false and Immediate = false, - %% rabbit_amqqueue:deliver will deliver the message to the queue - %% process asynchronously, and return true, which means all the - %% QPids will always be returned. It is therefore safe to use a - %% fire-and-forget cast here and return the QPids - the semantics - %% is preserved. This scales much better than the non-immediate - %% case below. - QPids = lookup_qpids(QNames), - delegate:invoke_no_result( - QPids, fun (Pid) -> rabbit_amqqueue:deliver(Pid, Delivery) end), - {routed, QPids}; - -deliver(QNames, Delivery = #delivery{mandatory = Mandatory, - immediate = Immediate}) -> - QPids = lookup_qpids(QNames), - {Success, _} = - delegate:invoke(QPids, - fun (Pid) -> - rabbit_amqqueue:deliver(Pid, Delivery) - end), - {Routed, Handled} = - lists:foldl(fun fold_deliveries/2, {false, []}, Success), - check_delivery(Mandatory, Immediate, {Routed, Handled}). - - -%% TODO: Maybe this should be handled by a cursor instead. -%% TODO: This causes a full scan for each entry with the same source -match_bindings(SrcName, Match) -> - Query = qlc:q([DestinationName || - #route{binding = Binding = #binding{ - source = SrcName1, - destination = DestinationName}} <- - mnesia:table(rabbit_route), - SrcName == SrcName1, - Match(Binding)]), - mnesia:async_dirty(fun qlc:e/1, [Query]). - -match_routing_key(SrcName, [RoutingKey]) -> - find_routes(#route{binding = #binding{source = SrcName, - destination = '$1', - key = RoutingKey, - _ = '_'}}, - []); -match_routing_key(SrcName, [_|_] = RoutingKeys) -> - find_routes(#route{binding = #binding{source = SrcName, - destination = '$1', - key = '$2', - _ = '_'}}, - [list_to_tuple(['orelse' | [{'=:=', '$2', RKey} || - RKey <- RoutingKeys]])]). - -%%-------------------------------------------------------------------- - -fold_deliveries({Pid, true},{_, Handled}) -> {true, [Pid|Handled]}; -fold_deliveries({_, false},{_, Handled}) -> {true, Handled}. - -%% check_delivery(Mandatory, Immediate, {WasRouted, QPids}) -check_delivery(true, _ , {false, []}) -> {unroutable, []}; -check_delivery(_ , true, {_ , []}) -> {not_delivered, []}; -check_delivery(_ , _ , {_ , Qs}) -> {routed, Qs}. - -lookup_qpids(QNames) -> - lists:foldl(fun (QName, QPids) -> - case mnesia:dirty_read({rabbit_queue, QName}) of - [#amqqueue{pid = QPid, slave_pids = SPids}] -> - [QPid | SPids ++ QPids]; - [] -> - QPids - end - end, [], QNames). - -%% Normally we'd call mnesia:dirty_select/2 here, but that is quite -%% expensive due to -%% -%% 1) general mnesia overheads (figuring out table types and -%% locations, etc). We get away with bypassing these because we know -%% that the table -%% - is not the schema table -%% - has a local ram copy -%% - does not have any indices -%% -%% 2) 'fixing' of the table with ets:safe_fixtable/2, which is wholly -%% unnecessary. According to the ets docs (and the code in erl_db.c), -%% 'select' is safe anyway ("Functions that internally traverse over a -%% table, like select and match, will give the same guarantee as -%% safe_fixtable.") and, furthermore, even the lower level iterators -%% ('first' and 'next') are safe on ordered_set tables ("Note that for -%% tables of the ordered_set type, safe_fixtable/2 is not necessary as -%% calls to first/1 and next/2 will always succeed."), which -%% rabbit_route is. -find_routes(MatchHead, Conditions) -> - ets:select(rabbit_route, [{MatchHead, Conditions, ['$1']}]). diff --git a/src/rabbit_sasl_report_file_h.erl b/src/rabbit_sasl_report_file_h.erl deleted file mode 100644 index 6f3c5c75..00000000 --- a/src/rabbit_sasl_report_file_h.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sasl_report_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_sasl_report_file_h is a wrapper around the sasl_report_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers and performing -%% log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "sasl log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without -%% doing any log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init({File, sasl_error_logger_type()}). - -handle_event(Event, State) -> - sasl_report_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - sasl_report_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - sasl_report_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - sasl_report_file_h:terminate(Reason, State). - -code_change(_OldVsn, State, _Extra) -> - %% There is no sasl_report_file_h:code_change/3 - {ok, State}. - -%%---------------------------------------------------------------------- - -sasl_error_logger_type() -> - case application:get_env(sasl, errlog_type) of - {ok, error} -> error; - {ok, progress} -> progress; - {ok, all} -> all; - {ok, Bad} -> throw({error, {wrong_errlog_type, Bad}}); - _ -> all - end. diff --git a/src/rabbit_ssl.erl b/src/rabbit_ssl.erl deleted file mode 100644 index e0defa9e..00000000 --- a/src/rabbit_ssl.erl +++ /dev/null @@ -1,246 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_ssl). - --include("rabbit.hrl"). - --include_lib("public_key/include/public_key.hrl"). - --export([peer_cert_issuer/1, peer_cert_subject/1, peer_cert_validity/1]). --export([peer_cert_subject_item/2]). - -%%-------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([certificate/0]). - --type(certificate() :: binary()). - --spec(peer_cert_issuer/1 :: (certificate()) -> string()). --spec(peer_cert_subject/1 :: (certificate()) -> string()). --spec(peer_cert_validity/1 :: (certificate()) -> string()). --spec(peer_cert_subject_item/2 :: - (certificate(), tuple()) -> string() | 'not_found'). - --endif. - -%%-------------------------------------------------------------------------- -%% High-level functions used by reader -%%-------------------------------------------------------------------------- - -%% Return a string describing the certificate's issuer. -peer_cert_issuer(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - issuer = Issuer }}) -> - format_rdn_sequence(Issuer) - end, Cert). - -%% Return a string describing the certificate's subject, as per RFC4514. -peer_cert_subject(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - format_rdn_sequence(Subject) - end, Cert). - -%% Return a part of the certificate's subject. -peer_cert_subject_item(Cert, Type) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - find_by_type(Type, Subject) - end, Cert). - -%% Return a string describing the certificate's validity. -peer_cert_validity(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - validity = {'Validity', Start, End} }}) -> - lists:flatten( - io_lib:format("~s - ~s", [format_asn1_value(Start), - format_asn1_value(End)])) - end, Cert). - -%%-------------------------------------------------------------------------- - -cert_info(F, Cert) -> - F(case public_key:pkix_decode_cert(Cert, otp) of - {ok, DecCert} -> DecCert; %%pre R14B - DecCert -> DecCert %%R14B onwards - end). - -find_by_type(Type, {rdnSequence, RDNs}) -> - case [V || #'AttributeTypeAndValue'{type = T, value = V} - <- lists:flatten(RDNs), - T == Type] of - [Val] -> format_asn1_value(Val); - [] -> not_found - end. - -%%-------------------------------------------------------------------------- -%% Formatting functions -%%-------------------------------------------------------------------------- - -%% Format and rdnSequence as a RFC4514 subject string. -format_rdn_sequence({rdnSequence, Seq}) -> - string:join(lists:reverse([format_complex_rdn(RDN) || RDN <- Seq]), ","). - -%% Format an RDN set. -format_complex_rdn(RDNs) -> - string:join([format_rdn(RDN) || RDN <- RDNs], "+"). - -%% Format an RDN. If the type name is unknown, use the dotted decimal -%% representation. See RFC4514, section 2.3. -format_rdn(#'AttributeTypeAndValue'{type = T, value = V}) -> - FV = escape_rdn_value(format_asn1_value(V)), - Fmts = [{?'id-at-surname' , "SN"}, - {?'id-at-givenName' , "GIVENNAME"}, - {?'id-at-initials' , "INITIALS"}, - {?'id-at-generationQualifier' , "GENERATIONQUALIFIER"}, - {?'id-at-commonName' , "CN"}, - {?'id-at-localityName' , "L"}, - {?'id-at-stateOrProvinceName' , "ST"}, - {?'id-at-organizationName' , "O"}, - {?'id-at-organizationalUnitName' , "OU"}, - {?'id-at-title' , "TITLE"}, - {?'id-at-countryName' , "C"}, - {?'id-at-serialNumber' , "SERIALNUMBER"}, - {?'id-at-pseudonym' , "PSEUDONYM"}, - {?'id-domainComponent' , "DC"}, - {?'id-emailAddress' , "EMAILADDRESS"}, - {?'street-address' , "STREET"}], - case proplists:lookup(T, Fmts) of - {_, Fmt} -> - io_lib:format(Fmt ++ "=~s", [FV]); - none when is_tuple(T) -> - TypeL = [io_lib:format("~w", [X]) || X <- tuple_to_list(T)], - io_lib:format("~s:~s", [string:join(TypeL, "."), FV]); - none -> - io_lib:format("~p:~s", [T, FV]) - end. - -%% Escape a string as per RFC4514. -escape_rdn_value(V) -> - escape_rdn_value(V, start). - -escape_rdn_value([], _) -> - []; -escape_rdn_value([C | S], start) when C =:= $ ; C =:= $# -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value(S, start) -> - escape_rdn_value(S, middle); -escape_rdn_value([$ ], middle) -> - [$\\, $ ]; -escape_rdn_value([C | S], middle) when C =:= $"; C =:= $+; C =:= $,; C =:= $;; - C =:= $<; C =:= $>; C =:= $\\ -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value([C | S], middle) when C < 32 ; C =:= 127 -> - %% only U+0000 needs escaping, but for display purposes it's handy - %% to escape all non-printable chars - lists:flatten(io_lib:format("\\~2.16.0B", [C])) ++ - escape_rdn_value(S, middle); -escape_rdn_value([C | S], middle) -> - [C | escape_rdn_value(S, middle)]. - -%% Get the string representation of an OTPCertificate field. -format_asn1_value({ST, S}) when ST =:= teletexString; ST =:= printableString; - ST =:= universalString; ST =:= utf8String; - ST =:= bmpString -> - format_directory_string(ST, S); -format_asn1_value({utcTime, [Y1, Y2, M1, M2, D1, D2, H1, H2, - Min1, Min2, S1, S2, $Z]}) -> - io_lib:format("20~c~c-~c~c-~c~cT~c~c:~c~c:~c~cZ", - [Y1, Y2, M1, M2, D1, D2, H1, H2, Min1, Min2, S1, S2]); -format_asn1_value(V) -> - io_lib:format("~p", [V]). - -%% DirectoryString { INTEGER : maxSize } ::= CHOICE { -%% teletexString TeletexString (SIZE (1..maxSize)), -%% printableString PrintableString (SIZE (1..maxSize)), -%% bmpString BMPString (SIZE (1..maxSize)), -%% universalString UniversalString (SIZE (1..maxSize)), -%% uTF8String UTF8String (SIZE (1..maxSize)) } -%% -%% Precise definitions of printable / teletexString are hard to come -%% by. This is what I reconstructed: -%% -%% printableString: -%% "intended to represent the limited character sets available to -%% mainframe input terminals" -%% A-Z a-z 0-9 ' ( ) + , - . / : = ? [space] -%% http://msdn.microsoft.com/en-us/library/bb540814(v=vs.85).aspx -%% -%% teletexString: -%% "a sizable volume of software in the world treats TeletexString -%% (T61String) as a simple 8-bit string with mostly Windows Latin 1 -%% (superset of iso-8859-1) encoding" -%% http://www.mail-archive.com/asn1@asn1.org/msg00460.html -%% -%% (However according to that link X.680 actually defines -%% TeletexString in some much more involved and crazy way. I suggest -%% we treat it as ISO-8859-1 since Erlang does not support Windows -%% Latin 1). -%% -%% bmpString: -%% UCS-2 according to RFC 3641. Hence cannot represent Unicode -%% characters above 65535 (outside the "Basic Multilingual Plane"). -%% -%% universalString: -%% UCS-4 according to RFC 3641. -%% -%% utf8String: -%% UTF-8 according to RFC 3641. -%% -%% Within Rabbit we assume UTF-8 encoding. Since printableString is a -%% subset of ASCII it is also a subset of UTF-8. The others need -%% converting. Fortunately since the Erlang SSL library does the -%% decoding for us (albeit into a weird format, see below), we just -%% need to handle encoding into UTF-8. Note also that utf8Strings come -%% back as binary. -%% -%% Note for testing: the default Ubuntu configuration for openssl will -%% only create printableString or teletexString types no matter what -%% you do. Edit string_mask in the [req] section of -%% /etc/ssl/openssl.cnf to change this (see comments there). You -%% probably also need to set utf8 = yes to get it to accept UTF-8 on -%% the command line. Also note I could not get openssl to generate a -%% universalString. - -format_directory_string(printableString, S) -> S; -format_directory_string(teletexString, S) -> utf8_list_from(S); -format_directory_string(bmpString, S) -> utf8_list_from(S); -format_directory_string(universalString, S) -> utf8_list_from(S); -format_directory_string(utf8String, S) -> binary_to_list(S). - -utf8_list_from(S) -> - binary_to_list( - unicode:characters_to_binary(flatten_ssl_list(S), utf32, utf8)). - -%% The Erlang SSL implementation invents its own representation for -%% non-ascii strings - looking like [97,{0,0,3,187}] (that's LATIN -%% SMALL LETTER A followed by GREEK SMALL LETTER LAMDA). We convert -%% this into a list of unicode characters, which we can tell -%% unicode:characters_to_binary is utf32. - -flatten_ssl_list(L) -> [flatten_ssl_list_item(I) || I <- L]. - -flatten_ssl_list_item({A, B, C, D}) -> - A * (1 bsl 24) + B * (1 bsl 16) + C * (1 bsl 8) + D; -flatten_ssl_list_item(N) when is_number (N) -> - N. diff --git a/src/rabbit_sup.erl b/src/rabbit_sup.erl deleted file mode 100644 index 508b127e..00000000 --- a/src/rabbit_sup.erl +++ /dev/null @@ -1,64 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sup). - --behaviour(supervisor). - --export([start_link/0, start_child/1, start_child/2, start_child/3, - start_restartable_child/1, start_restartable_child/2, stop_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Mod) -> - start_child(Mod, []). - -start_child(Mod, Args) -> - start_child(Mod, Mod, Args). - -start_child(ChildId, Mod, Args) -> - {ok, _} = supervisor:start_child(?SERVER, - {ChildId, {Mod, start_link, Args}, - transient, ?MAX_WAIT, worker, [Mod]}), - ok. - -start_restartable_child(Mod) -> - start_restartable_child(Mod, []). - -start_restartable_child(Mod, Args) -> - Name = list_to_atom(atom_to_list(Mod) ++ "_sup"), - {ok, _} = supervisor:start_child( - ?SERVER, - {Name, {rabbit_restartable_sup, start_link, - [Name, {Mod, start_link, Args}]}, - transient, infinity, supervisor, [rabbit_restartable_sup]}), - ok. - -stop_child(ChildId) -> - case supervisor:terminate_child(?SERVER, ChildId) of - ok -> supervisor:delete_child(?SERVER, ChildId); - E -> E - end. - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl deleted file mode 100644 index f7689e37..00000000 --- a/src/rabbit_tests.erl +++ /dev/null @@ -1,2511 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests). - --compile([export_all]). - --export([all_tests/0, test_parsing/0]). - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). --include_lib("kernel/include/file.hrl"). - --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). --define(CLEANUP_QUEUE_NAME, <<"cleanup-queue">>). - -test_content_prop_roundtrip(Datum, Binary) -> - Types = [element(1, E) || E <- Datum], - Values = [element(2, E) || E <- Datum], - Values = rabbit_binary_parser:parse_properties(Types, Binary), %% assertion - Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion - -all_tests() -> - passed = gm_tests:all_tests(), - application:set_env(rabbit, file_handles_high_watermark, 10, infinity), - ok = file_handle_cache:set_limit(10), - passed = test_file_handle_cache(), - passed = test_backing_queue(), - passed = test_priority_queue(), - passed = test_bpqueue(), - passed = test_unfold(), - passed = test_supervisor_delayed_restart(), - passed = test_parsing(), - passed = test_content_framing(), - passed = test_content_transcoding(), - passed = test_topic_matching(), - passed = test_log_management(), - passed = test_app_management(), - passed = test_log_management_during_startup(), - passed = test_statistics(), - passed = test_option_parser(), - passed = test_cluster_management(), - passed = test_user_management(), - passed = test_server_status(), - passed = test_confirms(), - passed = maybe_run_cluster_dependent_tests(), - passed = test_configurable_server_properties(), - passed. - -maybe_run_cluster_dependent_tests() -> - SecondaryNode = rabbit_misc:makenode("hare"), - - case net_adm:ping(SecondaryNode) of - pong -> passed = run_cluster_dependent_tests(SecondaryNode); - pang -> io:format("Skipping cluster dependent tests with node ~p~n", - [SecondaryNode]) - end, - passed. - -run_cluster_dependent_tests(SecondaryNode) -> - SecondaryNodeS = atom_to_list(SecondaryNode), - - ok = control_action(stop_app, []), - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - - io:format("Running cluster dependent tests with node ~p~n", [SecondaryNode]), - passed = test_delegates_async(SecondaryNode), - passed = test_delegates_sync(SecondaryNode), - passed = test_queue_cleanup(SecondaryNode), - passed = test_declare_on_dead_queue(SecondaryNode), - - %% we now run the tests remotely, so that code coverage on the - %% local node picks up more of the delegate - Node = node(), - Self = self(), - Remote = spawn(SecondaryNode, - fun () -> Rs = [ test_delegates_async(Node), - test_delegates_sync(Node), - test_queue_cleanup(Node), - test_declare_on_dead_queue(Node) ], - Self ! {self(), Rs} - end), - receive - {Remote, Result} -> - Result = lists:duplicate(length(Result), passed) - after 30000 -> - throw(timeout) - end, - - passed. - -test_priority_queue() -> - - false = priority_queue:is_queue(not_a_queue), - - %% empty Q - Q = priority_queue:new(), - {true, true, 0, [], []} = test_priority_queue(Q), - - %% 1-4 element no-priority Q - true = lists:all(fun (X) -> X =:= passed end, - lists:map(fun test_simple_n_element_queue/1, - lists:seq(1, 4))), - - %% 1-element priority Q - Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), - - %% 2-element same-priority Q - Q2 = priority_queue:in(bar, 1, Q1), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q2), - - %% 2-element different-priority Q - Q3 = priority_queue:in(bar, 2, Q1), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q3), - - %% 1-element negative priority Q - Q4 = priority_queue:in(foo, -1, priority_queue:new()), - {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - - %% merge 2 * 2-element multi-different-priority Qs - Q11 = priority_queue:join(Q6, Q5), - {true, false, 4, [{1, bar}, {0, foo}, {0, foo}, {0, bar}], - [bar, foo, foo, bar]} = test_priority_queue(Q11), - - %% and the other way around - Q12 = priority_queue:join(Q5, Q6), - {true, false, 4, [{1, bar}, {0, foo}, {0, bar}, {0, foo}], - [bar, foo, bar, foo]} = test_priority_queue(Q12), - - %% merge with negative priorities - Q13 = priority_queue:join(Q4, Q5), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q13), - - %% and the other way around - Q14 = priority_queue:join(Q5, Q4), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q14), - - %% joins with empty queues: - Q1 = priority_queue:join(Q, Q1), - Q1 = priority_queue:join(Q1, Q), - - %% insert with priority into non-empty zero-priority queue - Q15 = priority_queue:in(baz, 1, Q5), - {true, false, 3, [{1, baz}, {0, foo}, {0, bar}], [baz, foo, bar]} = - test_priority_queue(Q15), - - %% 1-element infinity priority Q - Q16 = priority_queue:in(foo, infinity, Q), - {true, false, 1, [{infinity, foo}], [foo]} = test_priority_queue(Q16), - - %% add infinity to 0-priority Q - Q17 = priority_queue:in(foo, infinity, priority_queue:in(bar, Q)), - {true, false, 2, [{infinity, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q17), - - %% and the other way around - Q18 = priority_queue:in(bar, priority_queue:in(foo, infinity, Q)), - {true, false, 2, [{infinity, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q18), - - %% add infinity to mixed-priority Q - Q19 = priority_queue:in(qux, infinity, Q3), - {true, false, 3, [{infinity, qux}, {2, bar}, {1, foo}], [qux, bar, foo]} = - test_priority_queue(Q19), - - %% merge the above with a negative priority Q - Q20 = priority_queue:join(Q19, Q4), - {true, false, 4, [{infinity, qux}, {2, bar}, {1, foo}, {-1, foo}], - [qux, bar, foo, foo]} = test_priority_queue(Q20), - - %% merge two infinity priority queues - Q21 = priority_queue:join(priority_queue:in(foo, infinity, Q), - priority_queue:in(bar, infinity, Q)), - {true, false, 2, [{infinity, foo}, {infinity, bar}], [foo, bar]} = - test_priority_queue(Q21), - - %% merge two mixed priority with infinity queues - Q22 = priority_queue:join(Q18, Q20), - {true, false, 6, [{infinity, foo}, {infinity, qux}, {2, bar}, {1, foo}, - {0, bar}, {-1, foo}], [foo, qux, bar, foo, bar, foo]} = - test_priority_queue(Q22), - - passed. - -priority_queue_in_all(Q, L) -> - lists:foldl(fun (X, Acc) -> priority_queue:in(X, Acc) end, Q, L). - -priority_queue_out_all(Q) -> - case priority_queue:out(Q) of - {empty, _} -> []; - {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] - end. - -test_priority_queue(Q) -> - {priority_queue:is_queue(Q), - priority_queue:is_empty(Q), - priority_queue:len(Q), - priority_queue:to_list(Q), - priority_queue_out_all(Q)}. - -test_bpqueue() -> - Q = bpqueue:new(), - true = bpqueue:is_empty(Q), - 0 = bpqueue:len(Q), - [] = bpqueue:to_list(Q), - - Q1 = bpqueue_test(fun bpqueue:in/3, fun bpqueue:out/1, - fun bpqueue:to_list/1, - fun bpqueue:foldl/3, fun bpqueue:map_fold_filter_l/4), - Q2 = bpqueue_test(fun bpqueue:in_r/3, fun bpqueue:out_r/1, - fun (QR) -> lists:reverse( - [{P, lists:reverse(L)} || - {P, L} <- bpqueue:to_list(QR)]) - end, - fun bpqueue:foldr/3, fun bpqueue:map_fold_filter_r/4), - - [{foo, [1, 2]}, {bar, [3]}] = bpqueue:to_list(bpqueue:join(Q, Q1)), - [{bar, [3]}, {foo, [2, 1]}] = bpqueue:to_list(bpqueue:join(Q2, Q)), - [{foo, [1, 2]}, {bar, [3, 3]}, {foo, [2,1]}] = - bpqueue:to_list(bpqueue:join(Q1, Q2)), - - [{foo, [1, 2]}, {bar, [3]}, {foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list(bpqueue:join(Q1, Q1)), - - [{foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list( - bpqueue:from_list( - [{x, []}, {foo, [1]}, {y, []}, {foo, [2]}, {bar, [3]}, {z, []}])), - - [{undefined, [a]}] = bpqueue:to_list(bpqueue:from_list([{undefined, [a]}])), - - {4, [a,b,c,d]} = - bpqueue:foldl( - fun (Prefix, Value, {Prefix, Acc}) -> - {Prefix + 1, [Value | Acc]} - end, - {0, []}, bpqueue:from_list([{0,[d]}, {1,[c]}, {2,[b]}, {3,[a]}])), - - [{bar,3}, {foo,2}, {foo,1}] = - bpqueue:foldr(fun (P, V, I) -> [{P,V} | I] end, [], Q2), - - BPQL = [{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], - BPQ = bpqueue:from_list(BPQL), - - %% no effect - {BPQL, 0} = bpqueue_mffl([none], {none, []}, BPQ), - {BPQL, 0} = bpqueue_mffl([foo,bar], {none, [1]}, BPQ), - {BPQL, 0} = bpqueue_mffl([bar], {none, [3]}, BPQ), - {BPQL, 0} = bpqueue_mffr([bar], {foo, [5]}, BPQ), - - %% process 1 item - {[{foo,[-1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([foo,bar], {foo, [2]}, BPQ), - {[{foo,[1,2,2]}, {bar,[-3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([bar], {bar, [4]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,-7]}], 1} = - bpqueue_mffr([foo,bar], {foo, [6]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4]}, {baz,[-5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffr([bar], {baz, [4]}, BPQ), - - %% change prefix - {[{bar,[-1,-2,-2,-3,-4,-5,-5,-6,-7]}], 9} = - bpqueue_mffl([foo,bar], {bar, []}, BPQ), - {[{bar,[-1,-2,-2,3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {bar, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6]}, {foo,[7]}], 5} = - bpqueue_mffl([foo], {bar, [7]}, BPQ), - {[{foo,[1,2,2,-3,-4]}, {bar,[5]}, {foo,[5,6,7]}], 2} = - bpqueue_mffl([bar], {foo, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6,-7]}], 6} = - bpqueue_mffl([foo], {bar, []}, BPQ), - {[{foo,[1,2,2,-3,-4,-5,5,6,7]}], 3} = - bpqueue_mffl([bar], {foo, []}, BPQ), - - %% edge cases - {[{foo,[-1,-2,-2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {foo, [5]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[-5,-6,-7]}], 3} = - bpqueue_mffr([foo], {foo, [2]}, BPQ), - - passed. - -bpqueue_test(In, Out, List, Fold, MapFoldFilter) -> - Q = bpqueue:new(), - {empty, _Q} = Out(Q), - - ok = Fold(fun (Prefix, Value, ok) -> {error, Prefix, Value} end, ok, Q), - {Q1M, 0} = MapFoldFilter(fun(_P) -> throw(explosion) end, - fun(_V, _N) -> throw(explosion) end, 0, Q), - [] = bpqueue:to_list(Q1M), - - Q1 = In(bar, 3, In(foo, 2, In(foo, 1, Q))), - false = bpqueue:is_empty(Q1), - 3 = bpqueue:len(Q1), - [{foo, [1, 2]}, {bar, [3]}] = List(Q1), - - {{value, foo, 1}, Q3} = Out(Q1), - {{value, foo, 2}, Q4} = Out(Q3), - {{value, bar, 3}, _Q5} = Out(Q4), - - F = fun (QN) -> - MapFoldFilter(fun (foo) -> true; - (_) -> false - end, - fun (2, _Num) -> stop; - (V, Num) -> {bar, -V, V - Num} end, - 0, QN) - end, - {Q6, 0} = F(Q), - [] = bpqueue:to_list(Q6), - {Q7, 1} = F(Q1), - [{bar, [-1]}, {foo, [2]}, {bar, [3]}] = List(Q7), - - Q1. - -bpqueue_mffl(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_l/4, FF1A, FF2A, BPQ). - -bpqueue_mffr(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_r/4, FF1A, FF2A, BPQ). - -bpqueue_mff(Fold, FF1A, FF2A, BPQ) -> - FF1 = fun (Prefixes) -> - fun (P) -> lists:member(P, Prefixes) end - end, - FF2 = fun ({Prefix, Stoppers}) -> - fun (Val, Num) -> - case lists:member(Val, Stoppers) of - true -> stop; - false -> {Prefix, -Val, 1 + Num} - end - end - end, - Queue_to_list = fun ({LHS, RHS}) -> {bpqueue:to_list(LHS), RHS} end, - - Queue_to_list(Fold(FF1(FF1A), FF2(FF2A), 0, BPQ)). - -test_simple_n_element_queue(N) -> - Items = lists:seq(1, N), - Q = priority_queue_in_all(priority_queue:new(), Items), - ToListRes = [{0, X} || X <- Items], - {true, false, N, ToListRes, Items} = test_priority_queue(Q), - passed. - -test_unfold() -> - {[], test} = rabbit_misc:unfold(fun (_V) -> false end, test), - List = lists:seq(2,20,2), - {List, 0} = rabbit_misc:unfold(fun (0) -> false; - (N) -> {true, N*2, N-1} - end, 10), - passed. - -test_parsing() -> - passed = test_content_properties(), - passed = test_field_values(), - passed. - -test_content_properties() -> - test_content_prop_roundtrip([], <<0, 0>>), - test_content_prop_roundtrip([{bit, true}, {bit, false}, {bit, true}, {bit, false}], - <<16#A0, 0>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {bit, true}, {octet, undefined}, - {bit, true}], - <<16#E8,0,123>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {octet, 123}, {bit, true}], - <<16#F0,0,123,123>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, <<"hi">>}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#F8,0,2,"hi",16#D4,16#31>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, undefined}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#B8,0,16#D4,16#31>>), - test_content_prop_roundtrip([{table, [{<<"a signedint">>, signedint, 12345678}, - {<<"a longstr">>, longstr, <<"yes please">>}, - {<<"a decimal">>, decimal, {123, 12345678}}, - {<<"a timestamp">>, timestamp, 123456789012345}, - {<<"a nested table">>, table, - [{<<"one">>, signedint, 1}, - {<<"two">>, signedint, 2}]}]}], - << - %% property-flags - 16#8000:16, - - %% property-list: - - %% table - 117:32, % table length in bytes - - 11,"a signedint", % name - "I",12345678:32, % type and value - - 9,"a longstr", - "S",10:32,"yes please", - - 9,"a decimal", - "D",123,12345678:32, - - 11,"a timestamp", - "T", 123456789012345:64, - - 14,"a nested table", - "F", - 18:32, - - 3,"one", - "I",1:32, - - 3,"two", - "I",2:32 >>), - case catch rabbit_binary_parser:parse_properties([bit, bit, bit, bit], <<16#A0,0,1>>) of - {'EXIT', content_properties_binary_overflow} -> passed; - V -> exit({got_success_but_expected_failure, V}) - end. - -test_field_values() -> - %% FIXME this does not test inexact numbers (double and float) yet, - %% because they won't pass the equality assertions - test_content_prop_roundtrip( - [{table, [{<<"longstr">>, longstr, <<"Here is a long string">>}, - {<<"signedint">>, signedint, 12345}, - {<<"decimal">>, decimal, {3, 123456}}, - {<<"timestamp">>, timestamp, 109876543209876}, - {<<"table">>, table, [{<<"one">>, signedint, 54321}, - {<<"two">>, longstr, <<"A long string">>}]}, - {<<"byte">>, byte, 255}, - {<<"long">>, long, 1234567890}, - {<<"short">>, short, 655}, - {<<"bool">>, bool, true}, - {<<"binary">>, binary, <<"a binary string">>}, - {<<"void">>, void, undefined}, - {<<"array">>, array, [{signedint, 54321}, - {longstr, <<"A long string">>}]} - - ]}], - << - %% property-flags - 16#8000:16, - %% table length in bytes - 228:32, - - 7,"longstr", "S", 21:32, "Here is a long string", % = 34 - 9,"signedint", "I", 12345:32/signed, % + 15 = 49 - 7,"decimal", "D", 3, 123456:32, % + 14 = 63 - 9,"timestamp", "T", 109876543209876:64, % + 19 = 82 - 5,"table", "F", 31:32, % length of table % + 11 = 93 - 3,"one", "I", 54321:32, % + 9 = 102 - 3,"two", "S", 13:32, "A long string", % + 22 = 124 - 4,"byte", "b", 255:8, % + 7 = 131 - 4,"long", "l", 1234567890:64, % + 14 = 145 - 5,"short", "s", 655:16, % + 9 = 154 - 4,"bool", "t", 1, % + 7 = 161 - 6,"binary", "x", 15:32, "a binary string", % + 27 = 188 - 4,"void", "V", % + 6 = 194 - 5,"array", "A", 23:32, % + 11 = 205 - "I", 54321:32, % + 5 = 210 - "S", 13:32, "A long string" % + 18 = 228 - >>), - passed. - -%% Test that content frames don't exceed frame-max -test_content_framing(FrameMax, BodyBin) -> - [Header | Frames] = - rabbit_binary_generator:build_simple_content_frames( - 1, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, BodyBin), - rabbit_framing_amqp_0_9_1), - FrameMax, - rabbit_framing_amqp_0_9_1), - %% header is formatted correctly and the size is the total of the - %% fragments - <<_FrameHeader:7/binary, _ClassAndWeight:4/binary, - BodySize:64/unsigned, _Rest/binary>> = list_to_binary(Header), - BodySize = size(BodyBin), - true = lists:all( - fun (ContentFrame) -> - FrameBinary = list_to_binary(ContentFrame), - %% assert - <<_TypeAndChannel:3/binary, - Size:32/unsigned, _Payload:Size/binary, 16#CE>> = - FrameBinary, - size(FrameBinary) =< FrameMax - end, Frames), - passed. - -test_content_framing() -> - %% no content - passed = test_content_framing(4096, <<>>), - %% easily fit in one frame - passed = test_content_framing(4096, <<"Easy">>), - %% exactly one frame (empty frame = 8 bytes) - passed = test_content_framing(11, <<"One">>), - %% more than one frame - passed = test_content_framing(11, <<"More than one frame">>), - passed. - -test_content_transcoding() -> - %% there are no guarantees provided by 'clear' - it's just a hint - ClearDecoded = fun rabbit_binary_parser:clear_decoded_content/1, - ClearEncoded = fun rabbit_binary_generator:clear_encoded_content/1, - EnsureDecoded = - fun (C0) -> - C1 = rabbit_binary_parser:ensure_content_decoded(C0), - true = C1#content.properties =/= none, - C1 - end, - EnsureEncoded = - fun (Protocol) -> - fun (C0) -> - C1 = rabbit_binary_generator:ensure_content_encoded( - C0, Protocol), - true = C1#content.properties_bin =/= none, - C1 - end - end, - %% Beyond the assertions in Ensure*, the only testable guarantee - %% is that the operations should never fail. - %% - %% If we were using quickcheck we'd simply stuff all the above - %% into a generator for sequences of operations. In the absence of - %% quickcheck we pick particularly interesting sequences that: - %% - %% - execute every op twice since they are idempotent - %% - invoke clear_decoded, clear_encoded, decode and transcode - %% with one or both of decoded and encoded content present - [begin - sequence_with_content([Op]), - sequence_with_content([ClearEncoded, Op]), - sequence_with_content([ClearDecoded, Op]) - end || Op <- [ClearDecoded, ClearEncoded, EnsureDecoded, - EnsureEncoded(rabbit_framing_amqp_0_9_1), - EnsureEncoded(rabbit_framing_amqp_0_8)]], - passed. - -sequence_with_content(Sequence) -> - lists:foldl(fun (F, V) -> F(F(V)) end, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, <<>>), - rabbit_framing_amqp_0_9_1), - Sequence). - -test_topic_matching() -> - XName = #resource{virtual_host = <<"/">>, - kind = exchange, - name = <<"test_exchange">>}, - X = #exchange{name = XName, type = topic, durable = false, - auto_delete = false, arguments = []}, - %% create - rabbit_exchange_type_topic:validate(X), - exchange_op_callback(X, create, []), - - %% add some bindings - Bindings = [#binding{source = XName, - key = list_to_binary(Key), - destination = #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)}} || - {Key, Q} <- [{"a.b.c", "t1"}, - {"a.*.c", "t2"}, - {"a.#.b", "t3"}, - {"a.b.b.c", "t4"}, - {"#", "t5"}, - {"#.#", "t6"}, - {"#.b", "t7"}, - {"*.*", "t8"}, - {"a.*", "t9"}, - {"*.b.c", "t10"}, - {"a.#", "t11"}, - {"a.#.#", "t12"}, - {"b.b.c", "t13"}, - {"a.b.b", "t14"}, - {"a.b", "t15"}, - {"b.c", "t16"}, - {"", "t17"}, - {"*.*.*", "t18"}, - {"vodka.martini", "t19"}, - {"a.b.c", "t20"}, - {"*.#", "t21"}, - {"#.*.#", "t22"}, - {"*.#.#", "t23"}, - {"#.#.#", "t24"}, - {"*", "t25"}, - {"#.b.#", "t26"}]], - lists:foreach(fun (B) -> exchange_op_callback(X, add_binding, [B]) end, - Bindings), - - %% test some matches - test_topic_expect_match( - X, [{"a.b.c", ["t1", "t2", "t5", "t6", "t10", "t11", "t12", - "t18", "t20", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b", ["t3", "t5", "t6", "t7", "t8", "t9", "t11", - "t12", "t15", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b.b", ["t3", "t5", "t6", "t7", "t11", "t12", "t14", - "t18", "t21", "t22", "t23", "t24", "t26"]}, - {"", ["t5", "t6", "t17", "t24"]}, - {"b.c.c", ["t5", "t6", "t18", "t21", "t22", "t23", - "t24", "t26"]}, - {"a.a.a.a.a", ["t5", "t6", "t11", "t12", "t21", "t22", - "t23", "t24"]}, - {"vodka.gin", ["t5", "t6", "t8", "t21", "t22", "t23", - "t24"]}, - {"vodka.martini", ["t5", "t6", "t8", "t19", "t21", "t22", "t23", - "t24"]}, - {"b.b.c", ["t5", "t6", "t10", "t13", "t18", "t21", - "t22", "t23", "t24", "t26"]}, - {"nothing.here.at.all", ["t5", "t6", "t21", "t22", "t23", "t24"]}, - {"oneword", ["t5", "t6", "t21", "t22", "t23", "t24", - "t25"]}]), - - %% remove some bindings - RemovedBindings = [lists:nth(1, Bindings), lists:nth(5, Bindings), - lists:nth(11, Bindings), lists:nth(19, Bindings), - lists:nth(21, Bindings)], - exchange_op_callback(X, remove_bindings, [RemovedBindings]), - RemainingBindings = ordsets:to_list( - ordsets:subtract(ordsets:from_list(Bindings), - ordsets:from_list(RemovedBindings))), - - %% test some matches - test_topic_expect_match( - X, - [{"a.b.c", ["t2", "t6", "t10", "t12", "t18", "t20", "t22", - "t23", "t24", "t26"]}, - {"a.b", ["t3", "t6", "t7", "t8", "t9", "t12", "t15", - "t22", "t23", "t24", "t26"]}, - {"a.b.b", ["t3", "t6", "t7", "t12", "t14", "t18", "t22", - "t23", "t24", "t26"]}, - {"", ["t6", "t17", "t24"]}, - {"b.c.c", ["t6", "t18", "t22", "t23", "t24", "t26"]}, - {"a.a.a.a.a", ["t6", "t12", "t22", "t23", "t24"]}, - {"vodka.gin", ["t6", "t8", "t22", "t23", "t24"]}, - {"vodka.martini", ["t6", "t8", "t22", "t23", "t24"]}, - {"b.b.c", ["t6", "t10", "t13", "t18", "t22", "t23", - "t24", "t26"]}, - {"nothing.here.at.all", ["t6", "t22", "t23", "t24"]}, - {"oneword", ["t6", "t22", "t23", "t24", "t25"]}]), - - %% remove the entire exchange - exchange_op_callback(X, delete, [RemainingBindings]), - %% none should match now - test_topic_expect_match(X, [{"a.b.c", []}, {"b.b.c", []}, {"", []}]), - passed. - -exchange_op_callback(X, Fun, Args) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> rabbit_exchange:callback(X, Fun, [transaction, X] ++ Args) end), - rabbit_exchange:callback(X, Fun, [none, X] ++ Args). - -test_topic_expect_match(X, List) -> - lists:foreach( - fun ({Key, Expected}) -> - BinKey = list_to_binary(Key), - Message = rabbit_basic:message(X#exchange.name, BinKey, - #'P_basic'{}, <<>>), - Res = rabbit_exchange_type_topic:route( - X, #delivery{mandatory = false, - immediate = false, - sender = self(), - message = Message}), - ExpectedRes = lists:map( - fun (Q) -> #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)} - end, Expected), - true = (lists:usort(ExpectedRes) =:= lists:usort(Res)) - end, List). - -test_app_management() -> - %% starting, stopping, status - ok = control_action(stop_app, []), - ok = control_action(stop_app, []), - ok = control_action(status, []), - ok = control_action(start_app, []), - ok = control_action(start_app, []), - ok = control_action(status, []), - passed. - -test_log_management() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - Suffix = ".1", - - %% prepare basic logs - file:delete([MainLog, Suffix]), - file:delete([SaslLog, Suffix]), - - %% simple logs reopening - ok = control_action(rotate_logs, []), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% simple log rotation - ok = control_action(rotate_logs, [Suffix]), - [true, true] = non_empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% reopening logs with log rotation performed first - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = file:rename(MainLog, [MainLog, Suffix]), - ok = file:rename(SaslLog, [SaslLog, Suffix]), - ok = test_logs_working([MainLog, Suffix], [SaslLog, Suffix]), - ok = control_action(rotate_logs, []), - ok = test_logs_working(MainLog, SaslLog), - - %% log rotation on empty file - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = control_action(rotate_logs, [Suffix]), - [true, true] = empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - - %% original main log file is not writable - ok = make_files_non_writable([MainLog]), - {error, {cannot_rotate_main_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([MainLog], Suffix), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}]), - - %% original sasl log file is not writable - ok = make_files_non_writable([SaslLog]), - {error, {cannot_rotate_sasl_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([SaslLog], Suffix), - ok = add_log_handlers([{rabbit_sasl_report_file_h, SaslLog}]), - - %% logs with suffix are not writable - ok = control_action(rotate_logs, [Suffix]), - ok = make_files_non_writable([[MainLog, Suffix], [SaslLog, Suffix]]), - ok = control_action(rotate_logs, [Suffix]), - ok = test_logs_working(MainLog, SaslLog), - - %% original log files are not writable - ok = make_files_non_writable([MainLog, SaslLog]), - {error, {{cannot_rotate_main_logs, _}, - {cannot_rotate_sasl_logs, _}}} = control_action(rotate_logs, []), - - %% logging directed to tty (handlers were removed in last test) - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = application:set_env(kernel, error_logger, tty), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% rotate logs when logging is turned off - ok = application:set_env(sasl, sasl_error_logger, false), - ok = application:set_env(kernel, error_logger, silent), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% cleanup - ok = application:set_env(sasl, sasl_error_logger, {file, SaslLog}), - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}, - {rabbit_sasl_report_file_h, SaslLog}]), - passed. - -test_log_management_during_startup() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - - %% start application with simple tty logging - ok = control_action(stop_app, []), - ok = application:set_env(kernel, error_logger, tty), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = add_log_handlers([{error_logger_tty_h, []}, - {sasl_report_tty_h, []}]), - ok = control_action(start_app, []), - - %% start application with tty logging and - %% proper handlers not installed - ok = control_action(stop_app, []), - ok = error_logger:tty(false), - ok = delete_log_handlers([sasl_report_tty_h]), - ok = case catch control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_tty_no_handlers_test}); - {error, {cannot_log_to_tty, _, _}} -> ok - end, - - %% fix sasl logging - ok = application:set_env(sasl, sasl_error_logger, - {file, SaslLog}), - - %% start application with logging to non-existing directory - TmpLog = "/tmp/rabbit-tests/test.log", - delete_file(TmpLog), - ok = application:set_env(kernel, error_logger, {file, TmpLog}), - - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = control_action(start_app, []), - - %% start application with logging to directory with no - %% write permissions - TmpDir = "/tmp/rabbit-tests", - ok = set_permissions(TmpDir, 8#00400), - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_no_write_permission_dir_test}); - {error, {cannot_log_to_file, _, _}} -> ok - end, - - %% start application with logging to a subdirectory which - %% parent directory has no write permissions - TmpTestDir = "/tmp/rabbit-tests/no-permission/test/log", - ok = application:set_env(kernel, error_logger, {file, TmpTestDir}), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotatation_parent_dirs_test}); - {error, {cannot_log_to_file, _, - {error, {cannot_create_parent_dirs, _, eacces}}}} -> ok - end, - ok = set_permissions(TmpDir, 8#00700), - ok = set_permissions(TmpLog, 8#00600), - ok = delete_file(TmpLog), - ok = file:del_dir(TmpDir), - - %% start application with standard error_logger_file_h - %% handler not installed - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% start application with standard sasl handler not installed - %% and rabbit main log handler installed correctly - ok = delete_log_handlers([rabbit_sasl_report_file_h]), - ok = control_action(start_app, []), - passed. - -test_option_parser() -> - %% command and arguments should just pass through - ok = check_get_options({["mock_command", "arg1", "arg2"], []}, - [], ["mock_command", "arg1", "arg2"]), - - %% get flags - ok = check_get_options( - {["mock_command", "arg1"], [{"-f", true}, {"-f2", false}]}, - [{flag, "-f"}, {flag, "-f2"}], ["mock_command", "arg1", "-f"]), - - %% get options - ok = check_get_options( - {["mock_command"], [{"-foo", "bar"}, {"-baz", "notbaz"}]}, - [{option, "-foo", "notfoo"}, {option, "-baz", "notbaz"}], - ["mock_command", "-foo", "bar"]), - - %% shuffled and interleaved arguments and options - ok = check_get_options( - {["a1", "a2", "a3"], [{"-o1", "hello"}, {"-o2", "noto2"}, {"-f", true}]}, - [{option, "-o1", "noto1"}, {flag, "-f"}, {option, "-o2", "noto2"}], - ["-f", "a1", "-o1", "hello", "a2", "a3"]), - - passed. - -test_cluster_management() -> - %% 'cluster' and 'reset' should only work if the app is stopped - {error, _} = control_action(cluster, []), - {error, _} = control_action(reset, []), - {error, _} = control_action(force_reset, []), - - ok = control_action(stop_app, []), - - %% various ways of creating a standalone node - NodeS = atom_to_list(node()), - ClusteringSequence = [[], - [NodeS], - ["invalid@invalid", NodeS], - [NodeS, "invalid@invalid"]], - - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - - %% convert a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_disc_node(), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = assert_ram_node(), - - %% join a non-existing cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = assert_ram_node(), - - SecondaryNode = rabbit_misc:makenode("hare"), - case net_adm:ping(SecondaryNode) of - pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", - [SecondaryNode]) - end, - - ok = control_action(start_app, []), - passed. - -test_cluster_management2(SecondaryNode) -> - NodeS = atom_to_list(node()), - SecondaryNodeS = atom_to_list(SecondaryNode), - - %% make a disk node - ok = control_action(reset, []), - ok = control_action(cluster, [NodeS]), - ok = assert_disc_node(), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = assert_ram_node(), - - %% join cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, [SecondaryNodeS, "invalid1@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_ram_node(), - - %% change cluster config while remaining in same cluster - ok = control_action(force_cluster, ["invalid2@invalid", SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join non-existing cluster as a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_ram_node(), - - %% join empty cluster as a ram node (converts to disc) - ok = control_action(cluster, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_disc_node(), - - %% make a new ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_ram_node(), - - %% turn ram node into disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_disc_node(), - - %% convert a disk node into a ram node - ok = assert_disc_node(), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = assert_ram_node(), - - %% make a new disk node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_disc_node(), - - %% turn a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_ram_node(), - - %% NB: this will log an inconsistent_database error, which is harmless - %% Turning cover on / off is OK even if we're not in general using cover, - %% it just turns the engine on / off, doesn't actually log anything. - cover:stop([SecondaryNode]), - true = disconnect_node(SecondaryNode), - pong = net_adm:ping(SecondaryNode), - cover:start([SecondaryNode]), - - %% leaving a cluster as a ram node - ok = control_action(reset, []), - %% ...and as a disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(reset, []), - - %% attempt to leave cluster when no other node is alive - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, SecondaryNode, [], []), - ok = control_action(stop_app, []), - {error, {no_running_cluster_nodes, _, _}} = - control_action(reset, []), - - %% attempt to change type when no other node is alive - {error, {no_running_cluster_nodes, _, _}} = - control_action(cluster, [SecondaryNodeS]), - - %% leave system clustered, with the secondary node as a ram node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(force_reset, SecondaryNode, [], []), - ok = control_action(cluster, SecondaryNode, [NodeS], []), - ok = control_action(start_app, SecondaryNode, [], []), - - passed. - -test_user_management() -> - - %% lots if stuff that should fail - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(change_password, ["foo", "baz"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - {error, {no_such_user, _}} = - control_action(set_permissions, ["foo", ".*", ".*", ".*"]), - {error, {no_such_user, _}} = - control_action(clear_permissions, ["foo"]), - {error, {no_such_user, _}} = - control_action(list_user_permissions, ["foo"]), - {error, {no_such_vhost, _}} = - control_action(list_permissions, [], [{"-p", "/testhost"}]), - {error, {invalid_regexp, _, _}} = - control_action(set_permissions, ["guest", "+foo", ".*", ".*"]), - {error, {no_such_user, _}} = - control_action(set_user_tags, ["foo", "bar"]), - - %% user creation - ok = control_action(add_user, ["foo", "bar"]), - {error, {user_already_exists, _}} = - control_action(add_user, ["foo", "bar"]), - ok = control_action(change_password, ["foo", "baz"]), - - TestTags = fun (Tags) -> - Args = ["foo" | [atom_to_list(T) || T <- Tags]], - ok = control_action(set_user_tags, Args), - {ok, #internal_user{tags = Tags}} = - rabbit_auth_backend_internal:lookup_user(<<"foo">>), - ok = control_action(list_users, []) - end, - TestTags([foo, bar, baz]), - TestTags([administrator]), - TestTags([]), - - %% vhost creation - ok = control_action(add_vhost, ["/testhost"]), - {error, {vhost_already_exists, _}} = - control_action(add_vhost, ["/testhost"]), - ok = control_action(list_vhosts, []), - - %% user/vhost mapping - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_user_permissions, ["foo"]), - - %% user/vhost unmapping - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - - %% vhost deletion - ok = control_action(delete_vhost, ["/testhost"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - - %% deleting a populated vhost - ok = control_action(add_vhost, ["/testhost"]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(delete_vhost, ["/testhost"]), - - %% user deletion - ok = control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - - passed. - -test_server_status() -> - %% create a few things so there is some useful information to list - Writer = spawn(fun () -> receive shutdown -> ok end end), - {ok, Ch} = rabbit_channel:start_link( - 1, self(), Writer, self(), rabbit_framing_amqp_0_9_1, - user(<<"user">>), <<"/">>, [], self(), - fun (_) -> {ok, self()} end), - [Q, Q2] = [Queue || Name <- [<<"foo">>, <<"bar">>], - {new, Queue = #amqqueue{}} <- - [rabbit_amqqueue:declare( - rabbit_misc:r(<<"/">>, queue, Name), - false, false, [], none)]], - - ok = rabbit_amqqueue:basic_consume(Q, true, Ch, undefined, - <<"ctag">>, true, undefined), - - %% list queues - ok = info_action(list_queues, rabbit_amqqueue:info_keys(), true), - - %% list exchanges - ok = info_action(list_exchanges, rabbit_exchange:info_keys(), true), - - %% list bindings - ok = info_action(list_bindings, rabbit_binding:info_keys(), true), - %% misc binding listing APIs - [_|_] = rabbit_binding:list_for_source( - rabbit_misc:r(<<"/">>, exchange, <<"">>)), - [_] = rabbit_binding:list_for_destination( - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - [_] = rabbit_binding:list_for_source_and_destination( - rabbit_misc:r(<<"/">>, exchange, <<"">>), - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - - %% list connections - [#listener{host = H, port = P} | _] = - [L || L = #listener{node = N} <- rabbit_networking:active_listeners(), - N =:= node()], - - {ok, _C} = gen_tcp:connect(H, P, []), - timer:sleep(100), - ok = info_action(list_connections, - rabbit_networking:connection_info_keys(), false), - %% close_connection - [ConnPid] = rabbit_networking:connections(), - ok = control_action(close_connection, [rabbit_misc:pid_to_string(ConnPid), - "go away"]), - - %% list channels - ok = info_action(list_channels, rabbit_channel:info_keys(), false), - - %% list consumers - ok = control_action(list_consumers, []), - - %% cleanup - [{ok, _} = rabbit_amqqueue:delete(QR, false, false) || QR <- [Q, Q2]], - - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_writer(Pid) -> - receive - shutdown -> ok; - {send_command, Method} -> Pid ! Method, test_writer(Pid) - end. - -test_spawn() -> - Me = self(), - Writer = spawn(fun () -> test_writer(Me) end), - {ok, Ch} = rabbit_channel:start_link( - 1, Me, Writer, Me, rabbit_framing_amqp_0_9_1, - user(<<"guest">>), <<"/">>, [], self(), - fun (_) -> {ok, self()} end), - ok = rabbit_channel:do(Ch, #'channel.open'{}), - receive #'channel.open_ok'{} -> ok - after 1000 -> throw(failed_to_receive_channel_open_ok) - end, - {Writer, Ch}. - -user(Username) -> - #user{username = Username, - tags = [administrator], - auth_backend = rabbit_auth_backend_internal, - impl = #internal_user{username = Username, - tags = [administrator]}}. - -test_statistics_event_receiver(Pid) -> - receive - Foo -> Pid ! Foo, test_statistics_event_receiver(Pid) - end. - -test_statistics_receive_event(Ch, Matcher) -> - rabbit_channel:flush(Ch), - rabbit_channel:emit_stats(Ch), - test_statistics_receive_event1(Ch, Matcher). - -test_statistics_receive_event1(Ch, Matcher) -> - receive #event{type = channel_stats, props = Props} -> - case Matcher(Props) of - true -> Props; - _ -> test_statistics_receive_event1(Ch, Matcher) - end - after 1000 -> throw(failed_to_receive_event) - end. - -test_confirms() -> - {_Writer, Ch} = test_spawn(), - DeclareBindDurableQueue = - fun() -> - rabbit_channel:do(Ch, #'queue.declare'{durable = true}), - receive #'queue.declare_ok'{queue = Q0} -> - rabbit_channel:do(Ch, #'queue.bind'{ - queue = Q0, - exchange = <<"amq.direct">>, - routing_key = "magic" }), - receive #'queue.bind_ok'{} -> - Q0 - after 1000 -> - throw(failed_to_bind_queue) - end - after 1000 -> - throw(failed_to_declare_queue) - end - end, - %% Declare and bind two queues - QName1 = DeclareBindDurableQueue(), - QName2 = DeclareBindDurableQueue(), - %% Get the first one's pid (we'll crash it later) - {ok, Q1} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName1)), - QPid1 = Q1#amqqueue.pid, - %% Enable confirms - rabbit_channel:do(Ch, #'confirm.select'{}), - receive - #'confirm.select_ok'{} -> ok - after 1000 -> throw(failed_to_enable_confirms) - end, - %% Publish a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"amq.direct">>, - routing_key = "magic" - }, - rabbit_basic:build_content( - #'P_basic'{delivery_mode = 2}, <<"">>)), - %% Crash the queue - QPid1 ! boom, - %% Wait for a nack - receive - #'basic.nack'{} -> ok; - #'basic.ack'{} -> throw(received_ack_instead_of_nack) - after 2000 -> throw(did_not_receive_nack) - end, - receive - #'basic.ack'{} -> throw(received_ack_when_none_expected) - after 1000 -> ok - end, - %% Cleanup - rabbit_channel:do(Ch, #'queue.delete'{queue = QName2}), - receive - #'queue.delete_ok'{} -> ok - after 1000 -> throw(failed_to_cleanup_queue) - end, - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_statistics() -> - application:set_env(rabbit, collect_statistics, fine), - - %% ATM this just tests the queue / exchange stats in channels. That's - %% by far the most complex code though. - - %% Set up a channel and queue - {_Writer, Ch} = test_spawn(), - rabbit_channel:do(Ch, #'queue.declare'{}), - QName = receive #'queue.declare_ok'{queue = Q0} -> - Q0 - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - {ok, Q} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName)), - QPid = Q#amqqueue.pid, - X = rabbit_misc:r(<<"/">>, exchange, <<"">>), - - rabbit_tests_event_receiver:start(self()), - - %% Check stats empty - Event = test_statistics_receive_event(Ch, fun (_) -> true end), - [] = proplists:get_value(channel_queue_stats, Event), - [] = proplists:get_value(channel_exchange_stats, Event), - [] = proplists:get_value(channel_queue_exchange_stats, Event), - - %% Publish and get a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"">>, - routing_key = QName}, - rabbit_basic:build_content(#'P_basic'{}, <<"">>)), - rabbit_channel:do(Ch, #'basic.get'{queue = QName}), - - %% Check the stats reflect that - Event2 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) > 0 - end), - [{QPid,[{get,1}]}] = proplists:get_value(channel_queue_stats, Event2), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event2), - [{{QPid,X},[{publish,1}]}] = - proplists:get_value(channel_queue_exchange_stats, Event2), - - %% Check the stats remove stuff on queue deletion - rabbit_channel:do(Ch, #'queue.delete'{queue = QName}), - Event3 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) == 0 - end), - - [] = proplists:get_value(channel_queue_stats, Event3), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event3), - [] = proplists:get_value(channel_queue_exchange_stats, Event3), - - rabbit_channel:shutdown(Ch), - rabbit_tests_event_receiver:stop(), - passed. - -test_delegates_async(SecondaryNode) -> - Self = self(), - Sender = fun (Pid) -> Pid ! {invoked, Self} end, - - Responder = make_responder(fun ({invoked, Pid}) -> Pid ! response end), - - ok = delegate:invoke_no_result(spawn(Responder), Sender), - ok = delegate:invoke_no_result(spawn(SecondaryNode, Responder), Sender), - await_response(2), - - LocalPids = spawn_responders(node(), Responder, 10), - RemotePids = spawn_responders(SecondaryNode, Responder, 10), - ok = delegate:invoke_no_result(LocalPids ++ RemotePids, Sender), - await_response(20), - - passed. - -make_responder(FMsg) -> make_responder(FMsg, timeout). -make_responder(FMsg, Throw) -> - fun () -> - receive Msg -> FMsg(Msg) - after 1000 -> throw(Throw) - end - end. - -spawn_responders(Node, Responder, Count) -> - [spawn(Node, Responder) || _ <- lists:seq(1, Count)]. - -await_response(0) -> - ok; -await_response(Count) -> - receive - response -> ok, - await_response(Count - 1) - after 1000 -> - io:format("Async reply not received~n"), - throw(timeout) - end. - -must_exit(Fun) -> - try - Fun(), - throw(exit_not_thrown) - catch - exit:_ -> ok - end. - -test_delegates_sync(SecondaryNode) -> - Sender = fun (Pid) -> gen_server:call(Pid, invoked, infinity) end, - BadSender = fun (_Pid) -> exit(exception) end, - - Responder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end), - - BadResponder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end, bad_responder_died), - - response = delegate:invoke(spawn(Responder), Sender), - response = delegate:invoke(spawn(SecondaryNode, Responder), Sender), - - must_exit(fun () -> delegate:invoke(spawn(BadResponder), BadSender) end), - must_exit(fun () -> - delegate:invoke(spawn(SecondaryNode, BadResponder), BadSender) end), - - LocalGoodPids = spawn_responders(node(), Responder, 2), - RemoteGoodPids = spawn_responders(SecondaryNode, Responder, 2), - LocalBadPids = spawn_responders(node(), BadResponder, 2), - RemoteBadPids = spawn_responders(SecondaryNode, BadResponder, 2), - - {GoodRes, []} = delegate:invoke(LocalGoodPids ++ RemoteGoodPids, Sender), - true = lists:all(fun ({_, response}) -> true end, GoodRes), - GoodResPids = [Pid || {Pid, _} <- GoodRes], - - Good = lists:usort(LocalGoodPids ++ RemoteGoodPids), - Good = lists:usort(GoodResPids), - - {[], BadRes} = delegate:invoke(LocalBadPids ++ RemoteBadPids, BadSender), - true = lists:all(fun ({_, {exit, exception, _}}) -> true end, BadRes), - BadResPids = [Pid || {Pid, _} <- BadRes], - - Bad = lists:usort(LocalBadPids ++ RemoteBadPids), - Bad = lists:usort(BadResPids), - - MagicalPids = [rabbit_misc:string_to_pid(Str) || - Str <- ["", ""]], - {[], BadNodes} = delegate:invoke(MagicalPids, Sender), - true = lists:all( - fun ({_, {exit, {nodedown, nonode@nohost}, _Stack}}) -> true end, - BadNodes), - BadNodesPids = [Pid || {Pid, _} <- BadNodes], - - Magical = lists:usort(MagicalPids), - Magical = lists:usort(BadNodesPids), - - passed. - -test_queue_cleanup(_SecondaryNode) -> - {_Writer, Ch} = test_spawn(), - rabbit_channel:do(Ch, #'queue.declare'{ queue = ?CLEANUP_QUEUE_NAME }), - receive #'queue.declare_ok'{queue = ?CLEANUP_QUEUE_NAME} -> - ok - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - rabbit:stop(), - rabbit:start(), - rabbit_channel:do(Ch, #'queue.declare'{ passive = true, - queue = ?CLEANUP_QUEUE_NAME }), - receive - #'channel.close'{reply_code = ?NOT_FOUND} -> - ok - after 2000 -> - throw(failed_to_receive_channel_exit) - end, - passed. - -test_declare_on_dead_queue(SecondaryNode) -> - QueueName = rabbit_misc:r(<<"/">>, queue, ?CLEANUP_QUEUE_NAME), - Self = self(), - Pid = spawn(SecondaryNode, - fun () -> - {new, #amqqueue{name = QueueName, pid = QPid}} = - rabbit_amqqueue:declare(QueueName, false, false, [], - none), - exit(QPid, kill), - Self ! {self(), killed, QPid} - end), - receive - {Pid, killed, QPid} -> - {existing, #amqqueue{name = QueueName, - pid = QPid}} = - rabbit_amqqueue:declare(QueueName, false, false, [], none), - false = rabbit_misc:is_process_alive(QPid), - {new, Q} = rabbit_amqqueue:declare(QueueName, false, false, [], - none), - true = rabbit_misc:is_process_alive(Q#amqqueue.pid), - {ok, 0} = rabbit_amqqueue:delete(Q, false, false), - passed - after 2000 -> - throw(failed_to_create_and_kill_queue) - end. - -%%--------------------------------------------------------------------- - -control_action(Command, Args) -> - control_action(Command, node(), Args, default_options()). - -control_action(Command, Args, NewOpts) -> - control_action(Command, node(), Args, - expand_options(default_options(), NewOpts)). - -control_action(Command, Node, Args, Opts) -> - case catch rabbit_control:action( - Command, Node, Args, Opts, - fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end) of - ok -> - io:format("done.~n"), - ok; - Other -> - io:format("failed.~n"), - Other - end. - -info_action(Command, Args, CheckVHost) -> - ok = control_action(Command, []), - if CheckVHost -> ok = control_action(Command, []); - true -> ok - end, - ok = control_action(Command, lists:map(fun atom_to_list/1, Args)), - {bad_argument, dummy} = control_action(Command, ["dummy"]), - ok. - -default_options() -> [{"-p", "/"}, {"-q", "false"}]. - -expand_options(As, Bs) -> - lists:foldl(fun({K, _}=A, R) -> - case proplists:is_defined(K, R) of - true -> R; - false -> [A | R] - end - end, Bs, As). - -check_get_options({ExpArgs, ExpOpts}, Defs, Args) -> - {ExpArgs, ResOpts} = rabbit_misc:get_options(Defs, Args), - true = lists:sort(ExpOpts) == lists:sort(ResOpts), % don't care about the order - ok. - -empty_files(Files) -> - [case file:read_file_info(File) of - {ok, FInfo} -> FInfo#file_info.size == 0; - Error -> Error - end || File <- Files]. - -non_empty_files(Files) -> - [case EmptyFile of - {error, Reason} -> {error, Reason}; - _ -> not(EmptyFile) - end || EmptyFile <- empty_files(Files)]. - -test_logs_working(MainLogFile, SaslLogFile) -> - ok = rabbit_log:error("foo bar"), - ok = error_logger:error_report(crash_report, [foo, bar]), - %% give the error loggers some time to catch up - timer:sleep(100), - [true, true] = non_empty_files([MainLogFile, SaslLogFile]), - ok. - -set_permissions(Path, Mode) -> - case file:read_file_info(Path) of - {ok, FInfo} -> file:write_file_info( - Path, - FInfo#file_info{mode=Mode}); - Error -> Error - end. - -clean_logs(Files, Suffix) -> - [begin - ok = delete_file(File), - ok = delete_file([File, Suffix]) - end || File <- Files], - ok. - -assert_ram_node() -> - case rabbit_mnesia:is_disc_node() of - true -> exit('not_ram_node'); - false -> ok - end. - -assert_disc_node() -> - case rabbit_mnesia:is_disc_node() of - true -> ok; - false -> exit('not_disc_node') - end. - -delete_file(File) -> - case file:delete(File) of - ok -> ok; - {error, enoent} -> ok; - Error -> Error - end. - -make_files_non_writable(Files) -> - [ok = file:write_file_info(File, #file_info{mode=0}) || - File <- Files], - ok. - -add_log_handlers(Handlers) -> - [ok = error_logger:add_report_handler(Handler, Args) || - {Handler, Args} <- Handlers], - ok. - -delete_log_handlers(Handlers) -> - [[] = error_logger:delete_report_handler(Handler) || - Handler <- Handlers], - ok. - -test_supervisor_delayed_restart() -> - test_sup:test_supervisor_delayed_restart(). - -test_file_handle_cache() -> - %% test copying when there is just one spare handle - Limit = file_handle_cache:get_limit(), - ok = file_handle_cache:set_limit(5), %% 1 or 2 sockets, 2 msg_stores - TmpDir = filename:join(rabbit_mnesia:dir(), "tmp"), - ok = filelib:ensure_dir(filename:join(TmpDir, "nothing")), - [Src1, Dst1, Src2, Dst2] = Files = - [filename:join(TmpDir, Str) || Str <- ["file1", "file2", "file3", "file4"]], - Content = <<"foo">>, - CopyFun = fun (Src, Dst) -> - ok = rabbit_misc:write_file(Src, Content), - {ok, SrcHdl} = file_handle_cache:open(Src, [read], []), - {ok, DstHdl} = file_handle_cache:open(Dst, [write], []), - Size = size(Content), - {ok, Size} = file_handle_cache:copy(SrcHdl, DstHdl, Size), - ok = file_handle_cache:delete(SrcHdl), - ok = file_handle_cache:delete(DstHdl) - end, - Pid = spawn(fun () -> {ok, Hdl} = file_handle_cache:open( - filename:join(TmpDir, "file5"), - [write], []), - receive {next, Pid1} -> Pid1 ! {next, self()} end, - file_handle_cache:delete(Hdl), - %% This will block and never return, so we - %% exercise the fhc tidying up the pending - %% queue on the death of a process. - ok = CopyFun(Src1, Dst1) - end), - ok = CopyFun(Src1, Dst1), - ok = file_handle_cache:set_limit(2), - Pid ! {next, self()}, - receive {next, Pid} -> ok end, - timer:sleep(100), - Pid1 = spawn(fun () -> CopyFun(Src2, Dst2) end), - timer:sleep(100), - erlang:monitor(process, Pid), - erlang:monitor(process, Pid1), - exit(Pid, kill), - exit(Pid1, kill), - receive {'DOWN', _MRef, process, Pid, _Reason} -> ok end, - receive {'DOWN', _MRef1, process, Pid1, _Reason1} -> ok end, - [file:delete(File) || File <- Files], - ok = file_handle_cache:set_limit(Limit), - passed. - -test_backing_queue() -> - case application:get_env(rabbit, backing_queue_module) of - {ok, rabbit_variable_queue} -> - {ok, FileSizeLimit} = - application:get_env(rabbit, msg_store_file_size_limit), - application:set_env(rabbit, msg_store_file_size_limit, 512, - infinity), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - application:set_env(rabbit, queue_index_max_journal_entries, 128, - infinity), - passed = test_msg_store(), - application:set_env(rabbit, msg_store_file_size_limit, - FileSizeLimit, infinity), - passed = test_queue_index(), - passed = test_queue_index_props(), - passed = test_variable_queue(), - passed = test_variable_queue_delete_msg_store_files_callback(), - passed = test_queue_recover(), - application:set_env(rabbit, queue_index_max_journal_entries, - MaxJournal, infinity), - %% We will have restarted the message store, and thus changed - %% the order of the children of rabbit_sup. This will cause - %% problems if there are subsequent failures - see bug 24262. - ok = restart_app(), - passed; - _ -> - passed - end. - -restart_msg_store_empty() -> - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - undefined, {fun (ok) -> finished end, ok}). - -msg_id_bin(X) -> - erlang:md5(term_to_binary(X)). - -msg_store_client_init(MsgStore, Ref) -> - rabbit_msg_store:client_init(MsgStore, Ref, undefined, undefined). - -msg_store_contains(Atom, MsgIds, MSCState) -> - Atom = lists:foldl( - fun (MsgId, Atom1) when Atom1 =:= Atom -> - rabbit_msg_store:contains(MsgId, MSCState) end, - Atom, MsgIds). - -msg_store_sync(MsgIds, MSCState) -> - Ref = make_ref(), - Self = self(), - ok = rabbit_msg_store:sync(MsgIds, fun () -> Self ! {sync, Ref} end, - MSCState), - receive - {sync, Ref} -> ok - after - 10000 -> - io:format("Sync from msg_store missing for msg_ids ~p~n", [MsgIds]), - throw(timeout) - end. - -msg_store_read(MsgIds, MSCState) -> - lists:foldl(fun (MsgId, MSCStateM) -> - {{ok, MsgId}, MSCStateN} = rabbit_msg_store:read( - MsgId, MSCStateM), - MSCStateN - end, MSCState, MsgIds). - -msg_store_write(MsgIds, MSCState) -> - ok = lists:foldl(fun (MsgId, ok) -> - rabbit_msg_store:write(MsgId, MsgId, MSCState) - end, ok, MsgIds). - -msg_store_remove(MsgIds, MSCState) -> - rabbit_msg_store:remove(MsgIds, MSCState). - -msg_store_remove(MsgStore, Ref, MsgIds) -> - with_msg_store_client(MsgStore, Ref, - fun (MSCStateM) -> - ok = msg_store_remove(MsgIds, MSCStateM), - MSCStateM - end). - -with_msg_store_client(MsgStore, Ref, Fun) -> - rabbit_msg_store:client_terminate( - Fun(msg_store_client_init(MsgStore, Ref))). - -foreach_with_msg_store_client(MsgStore, Ref, Fun, L) -> - rabbit_msg_store:client_terminate( - lists:foldl(fun (MsgId, MSCState) -> Fun(MsgId, MSCState) end, - msg_store_client_init(MsgStore, Ref), L)). - -test_msg_store() -> - restart_msg_store_empty(), - Self = self(), - MsgIds = [msg_id_bin(M) || M <- lists:seq(1,100)], - {MsgIds1stHalf, MsgIds2ndHalf} = lists:split(50, MsgIds), - Ref = rabbit_guid:guid(), - MSCState = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs we're about to publish - false = msg_store_contains(false, MsgIds, MSCState), - %% publish the first half - ok = msg_store_write(MsgIds1stHalf, MSCState), - %% sync on the first half - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% publish the second half - ok = msg_store_write(MsgIds2ndHalf, MSCState), - %% sync on the first half again - the msg_store will be dirty, but - %% we won't need the fsync - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% check they're all in there - true = msg_store_contains(true, MsgIds, MSCState), - %% publish the latter half twice so we hit the caching and ref count code - ok = msg_store_write(MsgIds2ndHalf, MSCState), - %% check they're still all in there - true = msg_store_contains(true, MsgIds, MSCState), - %% sync on the 2nd half, but do lots of individual syncs to try - %% and cause coalescing to happen - ok = lists:foldl( - fun (MsgId, ok) -> rabbit_msg_store:sync( - [MsgId], fun () -> Self ! {sync, MsgId} end, - MSCState) - end, ok, MsgIds2ndHalf), - lists:foldl( - fun(MsgId, ok) -> - receive - {sync, MsgId} -> ok - after - 10000 -> - io:format("Sync from msg_store missing (msg_id: ~p)~n", - [MsgId]), - throw(timeout) - end - end, ok, MsgIds2ndHalf), - %% it's very likely we're not dirty here, so the 1st half sync - %% should hit a different code path - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% read them all - MSCState1 = msg_store_read(MsgIds, MSCState), - %% read them all again - this will hit the cache, not disk - MSCState2 = msg_store_read(MsgIds, MSCState1), - %% remove them all - ok = rabbit_msg_store:remove(MsgIds, MSCState2), - %% check first half doesn't exist - false = msg_store_contains(false, MsgIds1stHalf, MSCState2), - %% check second half does exist - true = msg_store_contains(true, MsgIds2ndHalf, MSCState2), - %% read the second half again - MSCState3 = msg_store_read(MsgIds2ndHalf, MSCState2), - %% read the second half again, just for fun (aka code coverage) - MSCState4 = msg_store_read(MsgIds2ndHalf, MSCState3), - ok = rabbit_msg_store:client_terminate(MSCState4), - %% stop and restart, preserving every other msg in 2nd half - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - [], {fun ([]) -> finished; - ([MsgId|MsgIdsTail]) - when length(MsgIdsTail) rem 2 == 0 -> - {MsgId, 1, MsgIdsTail}; - ([MsgId|MsgIdsTail]) -> - {MsgId, 0, MsgIdsTail} - end, MsgIds2ndHalf}), - MSCState5 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we have the right msgs left - lists:foldl( - fun (MsgId, Bool) -> - not(Bool = rabbit_msg_store:contains(MsgId, MSCState5)) - end, false, MsgIds2ndHalf), - ok = rabbit_msg_store:client_terminate(MSCState5), - %% restart empty - restart_msg_store_empty(), - MSCState6 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs - false = msg_store_contains(false, MsgIds, MSCState6), - %% publish the first half again - ok = msg_store_write(MsgIds1stHalf, MSCState6), - %% this should force some sort of sync internally otherwise misread - ok = rabbit_msg_store:client_terminate( - msg_store_read(MsgIds1stHalf, MSCState6)), - MSCState7 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - ok = rabbit_msg_store:remove(MsgIds1stHalf, MSCState7), - ok = rabbit_msg_store:client_terminate(MSCState7), - %% restart empty - restart_msg_store_empty(), %% now safe to reuse msg_ids - %% push a lot of msgs in... at least 100 files worth - {ok, FileSize} = application:get_env(rabbit, msg_store_file_size_limit), - PayloadSizeBits = 65536, - BigCount = trunc(100 * FileSize / (PayloadSizeBits div 8)), - MsgIdsBig = [msg_id_bin(X) || X <- lists:seq(1, BigCount)], - Payload = << 0:PayloadSizeBits >>, - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - [ok = rabbit_msg_store:write(MsgId, Payload, MSCStateM) || - MsgId <- MsgIdsBig], - MSCStateM - end), - %% now read them to ensure we hit the fast client-side reading - ok = foreach_with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MsgId, MSCStateM) -> - {{ok, Payload}, MSCStateN} = rabbit_msg_store:read( - MsgId, MSCStateM), - MSCStateN - end, MsgIdsBig), - %% .., then 3s by 1... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount, 1, -3)]), - %% .., then remove 3s by 2, from the young end first. This hits - %% GC (under 50% good data left, but no empty files. Must GC). - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount-1, 1, -3)]), - %% .., then remove 3s by 3, from the young end first. This hits - %% GC... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount-2, 1, -3)]), - %% ensure empty - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - false = msg_store_contains(false, MsgIdsBig, MSCStateM), - MSCStateM - end), - %% restart empty - restart_msg_store_empty(), - passed. - -queue_name(Name) -> - rabbit_misc:r(<<"/">>, queue, Name). - -test_queue() -> - queue_name(<<"test">>). - -init_test_queue() -> - TestQueue = test_queue(), - Terms = rabbit_queue_index:shutdown_terms(TestQueue), - PRef = proplists:get_value(persistent_ref, Terms, rabbit_guid:guid()), - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef), - Res = rabbit_queue_index:recover( - TestQueue, Terms, false, - fun (MsgId) -> - rabbit_msg_store:contains(MsgId, PersistentClient) - end, - fun nop/1), - ok = rabbit_msg_store:client_delete_and_terminate(PersistentClient), - Res. - -restart_test_queue(Qi) -> - _ = rabbit_queue_index:terminate([], Qi), - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([test_queue()]), - init_test_queue(). - -empty_test_queue() -> - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - {0, Qi} = init_test_queue(), - _ = rabbit_queue_index:delete_and_terminate(Qi), - ok. - -with_empty_test_queue(Fun) -> - ok = empty_test_queue(), - {0, Qi} = init_test_queue(), - rabbit_queue_index:delete_and_terminate(Fun(Qi)). - -restart_app() -> - rabbit:stop(), - rabbit:start(). - -queue_index_publish(SeqIds, Persistent, Qi) -> - Ref = rabbit_guid:guid(), - MsgStore = case Persistent of - true -> ?PERSISTENT_MSG_STORE; - false -> ?TRANSIENT_MSG_STORE - end, - MSCState = msg_store_client_init(MsgStore, Ref), - {A, B = [{_SeqId, LastMsgIdWritten} | _]} = - lists:foldl( - fun (SeqId, {QiN, SeqIdsMsgIdsAcc}) -> - MsgId = rabbit_guid:guid(), - QiM = rabbit_queue_index:publish( - MsgId, SeqId, #message_properties{}, Persistent, QiN), - ok = rabbit_msg_store:write(MsgId, MsgId, MSCState), - {QiM, [{SeqId, MsgId} | SeqIdsMsgIdsAcc]} - end, {Qi, []}, SeqIds), - %% do this just to force all of the publishes through to the msg_store: - true = rabbit_msg_store:contains(LastMsgIdWritten, MSCState), - ok = rabbit_msg_store:client_delete_and_terminate(MSCState), - {A, B}. - -verify_read_with_published(_Delivered, _Persistent, [], _) -> - ok; -verify_read_with_published(Delivered, Persistent, - [{MsgId, SeqId, _Props, Persistent, Delivered}|Read], - [{SeqId, MsgId}|Published]) -> - verify_read_with_published(Delivered, Persistent, Read, Published); -verify_read_with_published(_Delivered, _Persistent, _Read, _Published) -> - ko. - -test_queue_index_props() -> - with_empty_test_queue( - fun(Qi0) -> - MsgId = rabbit_guid:guid(), - Props = #message_properties{expiry=12345}, - Qi1 = rabbit_queue_index:publish(MsgId, 1, Props, true, Qi0), - {[{MsgId, 1, Props, _, _}], Qi2} = - rabbit_queue_index:read(1, 2, Qi1), - Qi2 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -test_queue_index() -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - TwoSegs = SegmentSize + SegmentSize, - MostOfASegment = trunc(SegmentSize*0.75), - SeqIdsA = lists:seq(0, MostOfASegment-1), - SeqIdsB = lists:seq(MostOfASegment, 2*MostOfASegment), - SeqIdsC = lists:seq(0, trunc(SegmentSize/2)), - SeqIdsD = lists:seq(0, SegmentSize*4), - - with_empty_test_queue( - fun (Qi0) -> - {0, 0, Qi1} = rabbit_queue_index:bounds(Qi0), - {Qi2, SeqIdsMsgIdsA} = queue_index_publish(SeqIdsA, false, Qi1), - {0, SegmentSize, Qi3} = rabbit_queue_index:bounds(Qi2), - {ReadA, Qi4} = rabbit_queue_index:read(0, SegmentSize, Qi3), - ok = verify_read_with_published(false, false, ReadA, - lists:reverse(SeqIdsMsgIdsA)), - %% should get length back as 0, as all the msgs were transient - {0, Qi6} = restart_test_queue(Qi4), - {0, 0, Qi7} = rabbit_queue_index:bounds(Qi6), - {Qi8, SeqIdsMsgIdsB} = queue_index_publish(SeqIdsB, true, Qi7), - {0, TwoSegs, Qi9} = rabbit_queue_index:bounds(Qi8), - {ReadB, Qi10} = rabbit_queue_index:read(0, SegmentSize, Qi9), - ok = verify_read_with_published(false, true, ReadB, - lists:reverse(SeqIdsMsgIdsB)), - %% should get length back as MostOfASegment - LenB = length(SeqIdsB), - {LenB, Qi12} = restart_test_queue(Qi10), - {0, TwoSegs, Qi13} = rabbit_queue_index:bounds(Qi12), - Qi14 = rabbit_queue_index:deliver(SeqIdsB, Qi13), - {ReadC, Qi15} = rabbit_queue_index:read(0, SegmentSize, Qi14), - ok = verify_read_with_published(true, true, ReadC, - lists:reverse(SeqIdsMsgIdsB)), - Qi16 = rabbit_queue_index:ack(SeqIdsB, Qi15), - Qi17 = rabbit_queue_index:flush(Qi16), - %% Everything will have gone now because #pubs == #acks - {0, 0, Qi18} = rabbit_queue_index:bounds(Qi17), - %% should get length back as 0 because all persistent - %% msgs have been acked - {0, Qi19} = restart_test_queue(Qi18), - Qi19 - end), - - %% These next bits are just to hit the auto deletion of segment files. - %% First, partials: - %% a) partial pub+del+ack, then move to new segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsC} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsC, Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, _SeqIdsMsgIdsC1} = queue_index_publish([SegmentSize], - false, Qi4), - Qi5 - end), - - %% b) partial pub+del, then move to new segment, then ack all in old segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsC2} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - {Qi3, _SeqIdsMsgIdsC3} = queue_index_publish([SegmentSize], - false, Qi2), - Qi4 = rabbit_queue_index:ack(SeqIdsC, Qi3), - rabbit_queue_index:flush(Qi4) - end), - - %% c) just fill up several segments of all pubs, then +dels, then +acks - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsD} = queue_index_publish(SeqIdsD, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsD, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsD, Qi2), - rabbit_queue_index:flush(Qi3) - end), - - %% d) get messages in all states to a segment, then flush, then do - %% the same again, don't flush and read. This will hit all - %% possibilities in combining the segment with the journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, [Seven,Five,Four|_]} = queue_index_publish([0,1,2,4,5,7], - false, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, [Eight,Six|_]} = queue_index_publish([3,6,8], false, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {[], Qi8} = rabbit_queue_index:read(0, 4, Qi7), - {ReadD, Qi9} = rabbit_queue_index:read(4, 7, Qi8), - ok = verify_read_with_published(true, false, ReadD, - [Four, Five, Six]), - {ReadE, Qi10} = rabbit_queue_index:read(7, 9, Qi9), - ok = verify_read_with_published(false, false, ReadE, - [Seven, Eight]), - Qi10 - end), - - %% e) as for (d), but use terminate instead of read, which will - %% exercise journal_minus_segment, not segment_plus_journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsE} = queue_index_publish([0,1,2,4,5,7], - true, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - {5, Qi4} = restart_test_queue(Qi3), - {Qi5, _SeqIdsMsgIdsF} = queue_index_publish([3,6,8], true, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {5, Qi8} = restart_test_queue(Qi7), - Qi8 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -variable_queue_init(Q, Recover) -> - rabbit_variable_queue:init( - Q, Recover, fun nop/2, fun nop/2, fun nop/1). - -variable_queue_publish(IsPersistent, Count, VQ) -> - variable_queue_publish(IsPersistent, Count, fun (_N, P) -> P end, VQ). - -variable_queue_publish(IsPersistent, Count, PropFun, VQ) -> - lists:foldl( - fun (N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = case IsPersistent of - true -> 2; - false -> 1 - end}, <<>>), - PropFun(N, #message_properties{}), self(), VQN) - end, VQ, lists:seq(1, Count)). - -variable_queue_fetch(Count, IsPersistent, IsDelivered, Len, VQ) -> - lists:foldl(fun (N, {VQN, AckTagsAcc}) -> - Rem = Len - N, - {{#basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTagN, Rem}, VQM} = - rabbit_variable_queue:fetch(true, VQN), - {VQM, [AckTagN | AckTagsAcc]} - end, {VQ, []}, lists:seq(1, Count)). - -assert_prop(List, Prop, Value) -> - Value = proplists:get_value(Prop, List). - -assert_props(List, PropVals) -> - [assert_prop(List, Prop, Value) || {Prop, Value} <- PropVals]. - -test_amqqueue(Durable) -> - (rabbit_amqqueue:pseudo_queue(test_queue(), self())) - #amqqueue { durable = Durable }. - -with_fresh_variable_queue(Fun) -> - ok = empty_test_queue(), - VQ = variable_queue_init(test_amqqueue(true), false), - S0 = rabbit_variable_queue:status(VQ), - assert_props(S0, [{q1, 0}, {q2, 0}, - {delta, {delta, undefined, 0, undefined}}, - {q3, 0}, {q4, 0}, - {len, 0}]), - _ = rabbit_variable_queue:delete_and_terminate(shutdown, Fun(VQ)), - passed. - -publish_and_confirm(QPid, Payload, Count) -> - Seqs = lists:seq(1, Count), - [begin - Msg = rabbit_basic:message(rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, - Payload), - Delivery = #delivery{mandatory = false, immediate = false, - sender = self(), message = Msg, msg_seq_no = Seq}, - true = rabbit_amqqueue:deliver(QPid, Delivery) - end || Seq <- Seqs], - wait_for_confirms(gb_sets:from_list(Seqs)). - -wait_for_confirms(Unconfirmed) -> - case gb_sets:is_empty(Unconfirmed) of - true -> ok; - false -> receive {'$gen_cast', {confirm, Confirmed, _}} -> - wait_for_confirms( - gb_sets:difference(Unconfirmed, - gb_sets:from_list(Confirmed))) - after 5000 -> exit(timeout_waiting_for_confirm) - end - end. - -test_variable_queue() -> - [passed = with_fresh_variable_queue(F) || - F <- [fun test_variable_queue_dynamic_duration_change/1, - fun test_variable_queue_partial_segments_delta_thing/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere1/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere2/1, - fun test_dropwhile/1, - fun test_dropwhile_varying_ram_duration/1, - fun test_variable_queue_ack_limiting/1]], - passed. - -test_variable_queue_ack_limiting(VQ0) -> - %% start by sending in a bunch of messages - Len = 1024, - VQ1 = variable_queue_publish(false, Len, VQ0), - - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - %% update stats for duration - {_Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - - %% fetch half the messages - {VQ4, _AckTags} = variable_queue_fetch(Len div 2, false, false, Len, VQ3), - - VQ5 = check_variable_queue_status(VQ4, [{len , Len div 2}, - {ram_ack_count, Len div 2}, - {ram_msg_count, Len div 2}]), - - %% ensure all acks go to disk on 0 duration target - VQ6 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ5), - [{len, Len div 2}, - {target_ram_count, 0}, - {ram_msg_count, 0}, - {ram_ack_count, 0}]), - - VQ6. - -test_dropwhile(VQ0) -> - Count = 10, - - %% add messages with sequential expiry - VQ1 = variable_queue_publish( - false, Count, - fun (N, Props) -> Props#message_properties{expiry = N} end, VQ0), - - %% drop the first 5 messages - VQ2 = rabbit_variable_queue:dropwhile( - fun(#message_properties { expiry = Expiry }) -> - Expiry =< 5 - end, VQ1), - - %% fetch five now - VQ3 = lists:foldl(fun (_N, VQN) -> - {{#basic_message{}, _, _, _}, VQM} = - rabbit_variable_queue:fetch(false, VQN), - VQM - end, VQ2, lists:seq(6, Count)), - - %% should be empty now - {empty, VQ4} = rabbit_variable_queue:fetch(false, VQ3), - - VQ4. - -test_dropwhile_varying_ram_duration(VQ0) -> - VQ1 = variable_queue_publish(false, 1, VQ0), - VQ2 = rabbit_variable_queue:set_ram_duration_target(0, VQ1), - VQ3 = rabbit_variable_queue:dropwhile(fun(_) -> false end, VQ2), - VQ4 = rabbit_variable_queue:set_ram_duration_target(infinity, VQ3), - VQ5 = variable_queue_publish(false, 1, VQ4), - rabbit_variable_queue:dropwhile(fun(_) -> false end, VQ5). - -test_variable_queue_dynamic_duration_change(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - - %% start by sending in a couple of segments worth - Len = 2*SegmentSize, - VQ1 = variable_queue_publish(false, Len, VQ0), - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - {Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - VQ7 = lists:foldl( - fun (Duration1, VQ4) -> - {_Duration, VQ5} = rabbit_variable_queue:ram_duration(VQ4), - io:format("~p:~n~p~n", - [Duration1, rabbit_variable_queue:status(VQ5)]), - VQ6 = rabbit_variable_queue:set_ram_duration_target( - Duration1, VQ5), - publish_fetch_and_ack(Churn, Len, VQ6) - end, VQ3, [Duration / 4, 0, Duration / 4, infinity]), - - %% drain - {VQ8, AckTags} = variable_queue_fetch(Len, false, false, Len, VQ7), - {_Guids, VQ9} = rabbit_variable_queue:ack(AckTags, VQ8), - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - - VQ10. - -publish_fetch_and_ack(0, _Len, VQ0) -> - VQ0; -publish_fetch_and_ack(N, Len, VQ0) -> - VQ1 = variable_queue_publish(false, 1, VQ0), - {{_Msg, false, AckTag, Len}, VQ2} = rabbit_variable_queue:fetch(true, VQ1), - {_Guids, VQ3} = rabbit_variable_queue:ack([AckTag], VQ2), - publish_fetch_and_ack(N-1, Len, VQ3). - -test_variable_queue_partial_segments_delta_thing(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - HalfSegment = SegmentSize div 2, - OneAndAHalfSegment = SegmentSize + HalfSegment, - VQ1 = variable_queue_publish(true, OneAndAHalfSegment, VQ0), - {_Duration, VQ2} = rabbit_variable_queue:ram_duration(VQ1), - VQ3 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ2), - %% one segment in q3 as betas, and half a segment in delta - [{delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment}]), - VQ4 = rabbit_variable_queue:set_ram_duration_target(infinity, VQ3), - VQ5 = check_variable_queue_status( - variable_queue_publish(true, 1, VQ4), - %% one alpha, but it's in the same segment as the deltas - [{q1, 1}, - {delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment + 1}]), - {VQ6, AckTags} = variable_queue_fetch(SegmentSize, true, false, - SegmentSize + HalfSegment + 1, VQ5), - VQ7 = check_variable_queue_status( - VQ6, - %% the half segment should now be in q3 as betas - [{q1, 1}, - {delta, {delta, undefined, 0, undefined}}, - {q3, HalfSegment}, - {len, HalfSegment + 1}]), - {VQ8, AckTags1} = variable_queue_fetch(HalfSegment + 1, true, false, - HalfSegment + 1, VQ7), - {_Guids, VQ9} = rabbit_variable_queue:ack(AckTags ++ AckTags1, VQ8), - %% should be empty now - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - VQ10. - -check_variable_queue_status(VQ0, Props) -> - VQ1 = variable_queue_wait_for_shuffling_end(VQ0), - S = rabbit_variable_queue:status(VQ1), - io:format("~p~n", [S]), - assert_props(S, Props), - VQ1. - -variable_queue_wait_for_shuffling_end(VQ) -> - case rabbit_variable_queue:needs_timeout(VQ) of - false -> VQ; - _ -> variable_queue_wait_for_shuffling_end( - rabbit_variable_queue:timeout(VQ)) - end. - -test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - VQ1 = variable_queue_publish(true, Count, VQ0), - VQ2 = variable_queue_publish(false, Count, VQ1), - VQ3 = rabbit_variable_queue:set_ram_duration_target(0, VQ2), - {VQ4, _AckTags} = variable_queue_fetch(Count, true, false, - Count + Count, VQ3), - {VQ5, _AckTags1} = variable_queue_fetch(Count, false, false, - Count, VQ4), - _VQ6 = rabbit_variable_queue:terminate(shutdown, VQ5), - VQ7 = variable_queue_init(test_amqqueue(true), true), - {{_Msg1, true, _AckTag1, Count1}, VQ8} = - rabbit_variable_queue:fetch(true, VQ7), - VQ9 = variable_queue_publish(false, 1, VQ8), - VQ10 = rabbit_variable_queue:set_ram_duration_target(0, VQ9), - {VQ11, _AckTags2} = variable_queue_fetch(Count1, true, true, Count, VQ10), - {VQ12, _AckTags3} = variable_queue_fetch(1, false, false, 1, VQ11), - VQ12. - -test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ0) -> - VQ1 = rabbit_variable_queue:set_ram_duration_target(0, VQ0), - VQ2 = variable_queue_publish(false, 4, VQ1), - {VQ3, AckTags} = variable_queue_fetch(2, false, false, 4, VQ2), - {_Guids, VQ4} = - rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, VQ3), - VQ5 = rabbit_variable_queue:timeout(VQ4), - _VQ6 = rabbit_variable_queue:terminate(shutdown, VQ5), - VQ7 = variable_queue_init(test_amqqueue(true), true), - {empty, VQ8} = rabbit_variable_queue:fetch(false, VQ7), - VQ8. - -test_queue_recover() -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - {new, #amqqueue { pid = QPid, name = QName } = Q} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - publish_and_confirm(QPid, <<>>, Count), - - exit(QPid, kill), - MRef = erlang:monitor(process, QPid), - receive {'DOWN', MRef, process, QPid, _Info} -> ok - after 10000 -> exit(timeout_waiting_for_queue_death) - end, - rabbit_amqqueue:stop(), - rabbit_amqqueue:start(), - rabbit_amqqueue:with_or_die( - QName, - fun (Q1 = #amqqueue { pid = QPid1 }) -> - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid1, _AckTag, true, _Msg}} = - rabbit_amqqueue:basic_get(Q1, self(), false), - exit(QPid1, shutdown), - VQ1 = variable_queue_init(Q, true), - {{_Msg1, true, _AckTag1, CountMinusOne}, VQ2} = - rabbit_variable_queue:fetch(true, VQ1), - _VQ3 = rabbit_variable_queue:delete_and_terminate(shutdown, VQ2), - rabbit_amqqueue:internal_delete(QName) - end), - passed. - -test_variable_queue_delete_msg_store_files_callback() -> - ok = restart_msg_store_empty(), - {new, #amqqueue { pid = QPid, name = QName } = Q} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - Payload = <<0:8388608>>, %% 1MB - Count = 30, - publish_and_confirm(QPid, Payload, Count), - - rabbit_amqqueue:set_ram_duration_target(QPid, 0), - - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid, _AckTag, false, _Msg}} = - rabbit_amqqueue:basic_get(Q, self(), true), - {ok, CountMinusOne} = rabbit_amqqueue:purge(Q), - - %% give the queue a second to receive the close_fds callback msg - timer:sleep(1000), - - rabbit_amqqueue:delete(Q, false, false), - passed. - -test_configurable_server_properties() -> - %% List of the names of the built-in properties do we expect to find - BuiltInPropNames = [<<"product">>, <<"version">>, <<"platform">>, - <<"copyright">>, <<"information">>], - - Protocol = rabbit_framing_amqp_0_9_1, - - %% Verify that the built-in properties are initially present - ActualPropNames = [Key || {Key, longstr, _} <- - rabbit_reader:server_properties(Protocol)], - true = lists:all(fun (X) -> lists:member(X, ActualPropNames) end, - BuiltInPropNames), - - %% Get the initial server properties configured in the environment - {ok, ServerProperties} = application:get_env(rabbit, server_properties), - - %% Helper functions - ConsProp = fun (X) -> application:set_env(rabbit, - server_properties, - [X | ServerProperties]) end, - IsPropPresent = - fun (X) -> - lists:member(X, rabbit_reader:server_properties(Protocol)) - end, - - %% Add a wholly new property of the simplified {KeyAtom, StringValue} form - NewSimplifiedProperty = {NewHareKey, NewHareVal} = {hare, "soup"}, - ConsProp(NewSimplifiedProperty), - %% Do we find hare soup, appropriately formatted in the generated properties? - ExpectedHareImage = {list_to_binary(atom_to_list(NewHareKey)), - longstr, - list_to_binary(NewHareVal)}, - true = IsPropPresent(ExpectedHareImage), - - %% Add a wholly new property of the {BinaryKey, Type, Value} form - %% and check for it - NewProperty = {<<"new-bin-key">>, signedint, -1}, - ConsProp(NewProperty), - %% Do we find the new property? - true = IsPropPresent(NewProperty), - - %% Add a property that clobbers a built-in, and verify correct clobbering - {NewVerKey, NewVerVal} = NewVersion = {version, "X.Y.Z."}, - {BinNewVerKey, BinNewVerVal} = {list_to_binary(atom_to_list(NewVerKey)), - list_to_binary(NewVerVal)}, - ConsProp(NewVersion), - ClobberedServerProps = rabbit_reader:server_properties(Protocol), - %% Is the clobbering insert present? - true = IsPropPresent({BinNewVerKey, longstr, BinNewVerVal}), - %% Is the clobbering insert the only thing with the clobbering key? - [{BinNewVerKey, longstr, BinNewVerVal}] = - [E || {K, longstr, _V} = E <- ClobberedServerProps, K =:= BinNewVerKey], - - application:set_env(rabbit, server_properties, ServerProperties), - passed. - -nop(_) -> ok. -nop(_, _) -> ok. diff --git a/src/rabbit_tests_event_receiver.erl b/src/rabbit_tests_event_receiver.erl deleted file mode 100644 index 12c43faf..00000000 --- a/src/rabbit_tests_event_receiver.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests_event_receiver). - --export([start/1, stop/0]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - -start(Pid) -> - gen_event:add_handler(rabbit_event, ?MODULE, [Pid]). - -stop() -> - gen_event:delete_handler(rabbit_event, ?MODULE, []). - -%%---------------------------------------------------------------------------- - -init([Pid]) -> - {ok, Pid}. - -handle_call(_Request, Pid) -> - {ok, not_understood, Pid}. - -handle_event(Event, Pid) -> - Pid ! Event, - {ok, Pid}. - -handle_info(_Info, Pid) -> - {ok, Pid}. - -terminate(_Arg, _Pid) -> - ok. - -code_change(_OldVsn, Pid, _Extra) -> - {ok, Pid}. - -%%---------------------------------------------------------------------------- diff --git a/src/rabbit_trace.erl b/src/rabbit_trace.erl deleted file mode 100644 index 7d36856a..00000000 --- a/src/rabbit_trace.erl +++ /dev/null @@ -1,120 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_trace). - --export([init/1, tracing/1, tap_trace_in/2, tap_trace_out/2, start/1, stop/1]). - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(TRACE_VHOSTS, trace_vhosts). --define(XNAME, <<"amq.rabbitmq.trace">>). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(state() :: rabbit_types:exchange() | 'none'). - --spec(init/1 :: (rabbit_types:vhost()) -> state()). --spec(tracing/1 :: (rabbit_types:vhost()) -> boolean()). --spec(tap_trace_in/2 :: (rabbit_types:basic_message(), state()) -> 'ok'). --spec(tap_trace_out/2 :: (rabbit_amqqueue:qmsg(), state()) -> 'ok'). - --spec(start/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(stop/1 :: (rabbit_types:vhost()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -init(VHost) -> - case tracing(VHost) of - false -> none; - true -> {ok, X} = rabbit_exchange:lookup( - rabbit_misc:r(VHost, exchange, ?XNAME)), - X - end. - -tracing(VHost) -> - {ok, VHosts} = application:get_env(rabbit, ?TRACE_VHOSTS), - lists:member(VHost, VHosts). - -tap_trace_in(Msg = #basic_message{exchange_name = #resource{name = XName}}, - TraceX) -> - maybe_trace(TraceX, Msg, <<"publish">>, XName, []). - -tap_trace_out({#resource{name = QName}, _QPid, _QMsgId, Redelivered, Msg}, - TraceX) -> - RedeliveredNum = case Redelivered of true -> 1; false -> 0 end, - maybe_trace(TraceX, Msg, <<"deliver">>, QName, - [{<<"redelivered">>, signedint, RedeliveredNum}]). - -%%---------------------------------------------------------------------------- - -start(VHost) -> - update_config(fun (VHosts) -> [VHost | VHosts -- [VHost]] end). - -stop(VHost) -> - update_config(fun (VHosts) -> VHosts -- [VHost] end). - -update_config(Fun) -> - {ok, VHosts0} = application:get_env(rabbit, ?TRACE_VHOSTS), - VHosts = Fun(VHosts0), - application:set_env(rabbit, ?TRACE_VHOSTS, VHosts), - rabbit_channel:refresh_config_all(), - ok. - -%%---------------------------------------------------------------------------- - -maybe_trace(none, _Msg, _RKPrefix, _RKSuffix, _Extra) -> - ok; -maybe_trace(#exchange{name = Name}, #basic_message{exchange_name = Name}, - _RKPrefix, _RKSuffix, _Extra) -> - ok; -maybe_trace(X, Msg = #basic_message{content = #content{ - payload_fragments_rev = PFR}}, - RKPrefix, RKSuffix, Extra) -> - {ok, _, _} = rabbit_basic:publish( - X, <>, - #'P_basic'{headers = msg_to_table(Msg) ++ Extra}, PFR), - ok. - -msg_to_table(#basic_message{exchange_name = #resource{name = XName}, - routing_keys = RoutingKeys, - content = Content}) -> - #content{properties = Props} = - rabbit_binary_parser:ensure_content_decoded(Content), - {PropsTable, _Ix} = - lists:foldl(fun (K, {L, Ix}) -> - V = element(Ix, Props), - NewL = case V of - undefined -> L; - _ -> [{a2b(K), type(V), V} | L] - end, - {NewL, Ix + 1} - end, {[], 2}, record_info(fields, 'P_basic')), - [{<<"exchange_name">>, longstr, XName}, - {<<"routing_keys">>, array, [{longstr, K} || K <- RoutingKeys]}, - {<<"properties">>, table, PropsTable}, - {<<"node">>, longstr, a2b(node())}]. - -a2b(A) -> list_to_binary(atom_to_list(A)). - -type(V) when is_list(V) -> table; -type(V) when is_integer(V) -> signedint; -type(_V) -> longstr. diff --git a/src/rabbit_types.erl b/src/rabbit_types.erl deleted file mode 100644 index 2db960ac..00000000 --- a/src/rabbit_types.erl +++ /dev/null @@ -1,159 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_types). - --include("rabbit.hrl"). - --ifdef(use_specs). - --export_type([maybe/1, info/0, infos/0, info_key/0, info_keys/0, - message/0, msg_id/0, basic_message/0, - delivery/0, content/0, decoded_content/0, undecoded_content/0, - unencoded_content/0, encoded_content/0, message_properties/0, - vhost/0, ctag/0, amqp_error/0, r/1, r2/2, r3/3, listener/0, - binding/0, binding_source/0, binding_destination/0, - amqqueue/0, exchange/0, - connection/0, protocol/0, user/0, internal_user/0, - username/0, password/0, password_hash/0, ok/1, error/1, - ok_or_error/1, ok_or_error2/2, ok_pid_or_error/0, channel_exit/0, - connection_exit/0]). - --type(channel_exit() :: no_return()). --type(connection_exit() :: no_return()). - --type(maybe(T) :: T | 'none'). --type(vhost() :: binary()). --type(ctag() :: binary()). - -%% TODO: make this more precise by tying specific class_ids to -%% specific properties --type(undecoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: 'none', - properties_bin :: binary(), - payload_fragments_rev :: [binary()]} | - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: 'none', - payload_fragments_rev :: [binary()]}). --type(unencoded_content() :: undecoded_content()). --type(decoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: maybe(binary()), - payload_fragments_rev :: [binary()]}). --type(encoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: maybe(rabbit_framing:amqp_property_record()), - properties_bin :: binary(), - payload_fragments_rev :: [binary()]}). --type(content() :: undecoded_content() | decoded_content()). --type(msg_id() :: rabbit_guid:guid()). --type(basic_message() :: - #basic_message{exchange_name :: rabbit_exchange:name(), - routing_keys :: [rabbit_router:routing_key()], - content :: content(), - id :: msg_id(), - is_persistent :: boolean()}). --type(message() :: basic_message()). --type(delivery() :: - #delivery{mandatory :: boolean(), - immediate :: boolean(), - sender :: pid(), - message :: message()}). --type(message_properties() :: - #message_properties{expiry :: pos_integer() | 'undefined', - needs_confirming :: boolean()}). - --type(info_key() :: atom()). --type(info_keys() :: [info_key()]). - --type(info() :: {info_key(), any()}). --type(infos() :: [info()]). - --type(amqp_error() :: - #amqp_error{name :: rabbit_framing:amqp_exception(), - explanation :: string(), - method :: rabbit_framing:amqp_method_name()}). - --type(r(Kind) :: - r2(vhost(), Kind)). --type(r2(VirtualHost, Kind) :: - r3(VirtualHost, Kind, rabbit_misc:resource_name())). --type(r3(VirtualHost, Kind, Name) :: - #resource{virtual_host :: VirtualHost, - kind :: Kind, - name :: Name}). - --type(listener() :: - #listener{node :: node(), - protocol :: atom(), - host :: rabbit_networking:hostname(), - port :: rabbit_networking:ip_port()}). - --type(binding_source() :: rabbit_exchange:name()). --type(binding_destination() :: rabbit_amqqueue:name() | rabbit_exchange:name()). - --type(binding() :: - #binding{source :: rabbit_exchange:name(), - destination :: binding_destination(), - key :: rabbit_binding:key(), - args :: rabbit_framing:amqp_table()}). - --type(amqqueue() :: - #amqqueue{name :: rabbit_amqqueue:name(), - durable :: boolean(), - auto_delete :: boolean(), - exclusive_owner :: rabbit_types:maybe(pid()), - arguments :: rabbit_framing:amqp_table(), - pid :: rabbit_types:maybe(pid()), - slave_pids :: [pid()], - mirror_nodes :: [node()] | 'undefined' | 'all'}). - --type(exchange() :: - #exchange{name :: rabbit_exchange:name(), - type :: rabbit_exchange:type(), - durable :: boolean(), - auto_delete :: boolean(), - arguments :: rabbit_framing:amqp_table()}). - --type(connection() :: pid()). - --type(protocol() :: rabbit_framing:protocol()). - --type(user() :: - #user{username :: username(), - tags :: [atom()], - auth_backend :: atom(), - impl :: any()}). - --type(internal_user() :: - #internal_user{username :: username(), - password_hash :: password_hash(), - tags :: [atom()]}). - --type(username() :: binary()). --type(password() :: binary()). --type(password_hash() :: binary()). - --type(ok(A) :: {'ok', A}). --type(error(A) :: {'error', A}). --type(ok_or_error(A) :: 'ok' | error(A)). --type(ok_or_error2(A, B) :: ok(A) | error(B)). --type(ok_pid_or_error() :: ok_or_error2(pid(), any())). - --endif. % use_specs diff --git a/src/rabbit_upgrade.erl b/src/rabbit_upgrade.erl deleted file mode 100644 index 9739f6b7..00000000 --- a/src/rabbit_upgrade.erl +++ /dev/null @@ -1,289 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade). - --export([maybe_upgrade_mnesia/0, maybe_upgrade_local/0]). - --include("rabbit.hrl"). - --define(VERSION_FILENAME, "schema_version"). --define(LOCK_FILENAME, "schema_upgrade_lock"). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --spec(maybe_upgrade_mnesia/0 :: () -> 'ok'). --spec(maybe_upgrade_local/0 :: () -> 'ok' | 'version_not_available'). - --endif. - -%% ------------------------------------------------------------------- - -%% The upgrade logic is quite involved, due to the existence of -%% clusters. -%% -%% Firstly, we have two different types of upgrades to do: Mnesia and -%% everythinq else. Mnesia upgrades must only be done by one node in -%% the cluster (we treat a non-clustered node as a single-node -%% cluster). This is the primary upgrader. The other upgrades need to -%% be done by all nodes. -%% -%% The primary upgrader has to start first (and do its Mnesia -%% upgrades). Secondary upgraders need to reset their Mnesia database -%% and then rejoin the cluster. They can't do the Mnesia upgrades as -%% well and then merge databases since the cookie for each table will -%% end up different and the merge will fail. -%% -%% This in turn means that we need to determine whether we are the -%% primary or secondary upgrader *before* Mnesia comes up. If we -%% didn't then the secondary upgrader would try to start Mnesia, and -%% either hang waiting for a node which is not yet up, or fail since -%% its schema differs from the other nodes in the cluster. -%% -%% Also, the primary upgrader needs to start Mnesia to do its -%% upgrades, but needs to forcibly load tables rather than wait for -%% them (in case it was not the last node to shut down, in which case -%% it would wait forever). -%% -%% This in turn means that maybe_upgrade_mnesia/0 has to be patched -%% into the boot process by prelaunch before the mnesia application is -%% started. By the time Mnesia is started the upgrades have happened -%% (on the primary), or Mnesia has been reset (on the secondary) and -%% rabbit_mnesia:init_db/3 can then make the node rejoin the cluster -%% in the normal way. -%% -%% The non-mnesia upgrades are then triggered by -%% rabbit_mnesia:init_db/3. Of course, it's possible for a given -%% upgrade process to only require Mnesia upgrades, or only require -%% non-Mnesia upgrades. In the latter case no Mnesia resets and -%% reclusterings occur. -%% -%% The primary upgrader needs to be a disc node. Ideally we would like -%% it to be the last disc node to shut down (since otherwise there's a -%% risk of data loss). On each node we therefore record the disc nodes -%% that were still running when we shut down. A disc node that knows -%% other nodes were up when it shut down, or a ram node, will refuse -%% to be the primary upgrader, and will thus not start when upgrades -%% are needed. -%% -%% However, this is racy if several nodes are shut down at once. Since -%% rabbit records the running nodes, and shuts down before mnesia, the -%% race manifests as all disc nodes thinking they are not the primary -%% upgrader. Therefore the user can remove the record of the last disc -%% node to shut down to get things going again. This may lose any -%% mnesia changes that happened after the node chosen as the primary -%% upgrader was shut down. - -%% ------------------------------------------------------------------- - -ensure_backup_taken() -> - case filelib:is_file(lock_filename()) of - false -> case filelib:is_dir(backup_dir()) of - false -> ok = take_backup(); - _ -> ok - end; - true -> throw({error, previous_upgrade_failed}) - end. - -take_backup() -> - BackupDir = backup_dir(), - case rabbit_mnesia:copy_db(BackupDir) of - ok -> info("upgrades: Mnesia dir backed up to ~p~n", - [BackupDir]); - {error, E} -> throw({could_not_back_up_mnesia_dir, E}) - end. - -ensure_backup_removed() -> - case filelib:is_dir(backup_dir()) of - true -> ok = remove_backup(); - _ -> ok - end. - -remove_backup() -> - ok = rabbit_misc:recursive_delete([backup_dir()]), - info("upgrades: Mnesia backup removed~n", []). - -maybe_upgrade_mnesia() -> - AllNodes = rabbit_mnesia:all_clustered_nodes(), - case rabbit_version:upgrades_required(mnesia) of - {error, version_not_available} -> - case AllNodes of - [_] -> ok; - _ -> die("Cluster upgrade needed but upgrading from " - "< 2.1.1.~nUnfortunately you will need to " - "rebuild the cluster.", []) - end; - {error, _} = Err -> - throw(Err); - {ok, []} -> - ok; - {ok, Upgrades} -> - ensure_backup_taken(), - ok = case upgrade_mode(AllNodes) of - primary -> primary_upgrade(Upgrades, AllNodes); - secondary -> secondary_upgrade(AllNodes) - end - end. - -upgrade_mode(AllNodes) -> - case nodes_running(AllNodes) of - [] -> - AfterUs = rabbit_mnesia:read_previously_running_nodes(), - case {is_disc_node_legacy(), AfterUs} of - {true, []} -> - primary; - {true, _} -> - Filename = rabbit_mnesia:running_nodes_filename(), - die("Cluster upgrade needed but other disc nodes shut " - "down after this one.~nPlease first start the last " - "disc node to shut down.~n~nNote: if several disc " - "nodes were shut down simultaneously they may " - "all~nshow this message. In which case, remove " - "the lock file on one of them and~nstart that node. " - "The lock file on this node is:~n~n ~s ", [Filename]); - {false, _} -> - die("Cluster upgrade needed but this is a ram node.~n" - "Please first start the last disc node to shut down.", - []) - end; - [Another|_] -> - MyVersion = rabbit_version:desired_for_scope(mnesia), - ErrFun = fun (ClusterVersion) -> - %% The other node(s) are running an - %% unexpected version. - die("Cluster upgrade needed but other nodes are " - "running ~p~nand I want ~p", - [ClusterVersion, MyVersion]) - end, - case rpc:call(Another, rabbit_version, desired_for_scope, - [mnesia]) of - {badrpc, {'EXIT', {undef, _}}} -> ErrFun(unknown_old_version); - {badrpc, Reason} -> ErrFun({unknown, Reason}); - CV -> case rabbit_version:matches( - MyVersion, CV) of - true -> secondary; - false -> ErrFun(CV) - end - end - end. - -die(Msg, Args) -> - %% We don't throw or exit here since that gets thrown - %% straight out into do_boot, generating an erl_crash.dump - %% and displaying any error message in a confusing way. - error_logger:error_msg(Msg, Args), - io:format("~n~n****~n~n" ++ Msg ++ "~n~n****~n~n~n", Args), - error_logger:logfile(close), - halt(1). - -primary_upgrade(Upgrades, Nodes) -> - Others = Nodes -- [node()], - ok = apply_upgrades( - mnesia, - Upgrades, - fun () -> - force_tables(), - case Others of - [] -> ok; - _ -> info("mnesia upgrades: Breaking cluster~n", []), - [{atomic, ok} = mnesia:del_table_copy(schema, Node) - || Node <- Others] - end - end), - ok. - -force_tables() -> - [mnesia:force_load_table(T) || T <- rabbit_mnesia:table_names()]. - -secondary_upgrade(AllNodes) -> - %% must do this before we wipe out schema - IsDiscNode = is_disc_node_legacy(), - rabbit_misc:ensure_ok(mnesia:delete_schema([node()]), - cannot_delete_schema), - %% Note that we cluster with all nodes, rather than all disc nodes - %% (as we can't know all disc nodes at this point). This is safe as - %% we're not writing the cluster config, just setting up Mnesia. - ClusterNodes = case IsDiscNode of - true -> AllNodes; - false -> AllNodes -- [node()] - end, - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok = rabbit_mnesia:init_db(ClusterNodes, true, fun () -> ok end), - ok = rabbit_version:record_desired_for_scope(mnesia), - ok. - -nodes_running(Nodes) -> - [N || N <- Nodes, node_running(N)]. - -node_running(Node) -> - case rpc:call(Node, application, which_applications, []) of - {badrpc, _} -> false; - Apps -> lists:keysearch(rabbit, 1, Apps) =/= false - end. - -%% ------------------------------------------------------------------- - -maybe_upgrade_local() -> - case rabbit_version:upgrades_required(local) of - {error, version_not_available} -> version_not_available; - {error, _} = Err -> throw(Err); - {ok, []} -> ensure_backup_removed(), - ok; - {ok, Upgrades} -> mnesia:stop(), - ensure_backup_taken(), - ok = apply_upgrades(local, Upgrades, - fun () -> ok end), - ensure_backup_removed(), - ok - end. - -%% ------------------------------------------------------------------- - -apply_upgrades(Scope, Upgrades, Fun) -> - ok = rabbit_misc:lock_file(lock_filename()), - info("~s upgrades: ~w to apply~n", [Scope, length(Upgrades)]), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - Fun(), - [apply_upgrade(Scope, Upgrade) || Upgrade <- Upgrades], - info("~s upgrades: All upgrades applied successfully~n", [Scope]), - ok = rabbit_version:record_desired_for_scope(Scope), - ok = file:delete(lock_filename()). - -apply_upgrade(Scope, {M, F}) -> - info("~s upgrades: Applying ~w:~w~n", [Scope, M, F]), - ok = apply(M, F, []). - -%% ------------------------------------------------------------------- - -dir() -> rabbit_mnesia:dir(). - -lock_filename() -> lock_filename(dir()). -lock_filename(Dir) -> filename:join(Dir, ?LOCK_FILENAME). -backup_dir() -> dir() ++ "-upgrade-backup". - -is_disc_node_legacy() -> - %% This is pretty ugly but we can't start Mnesia and ask it (will - %% hang), we can't look at the config file (may not include us - %% even if we're a disc node). We also can't use - %% rabbit_mnesia:is_disc_node/0 because that will give false - %% postivies on Rabbit up to 2.5.1. - filelib:is_regular(filename:join(dir(), "rabbit_durable_exchange.DCD")). - -%% NB: we cannot use rabbit_log here since it may not have been -%% started yet -info(Msg, Args) -> error_logger:info_msg(Msg, Args). diff --git a/src/rabbit_upgrade_functions.erl b/src/rabbit_upgrade_functions.erl deleted file mode 100644 index 8d26866b..00000000 --- a/src/rabbit_upgrade_functions.erl +++ /dev/null @@ -1,197 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade_functions). - -%% If you are tempted to add include("rabbit.hrl"). here, don't. Using record -%% defs here leads to pain later. - --compile([export_all]). - --rabbit_upgrade({remove_user_scope, mnesia, []}). --rabbit_upgrade({hash_passwords, mnesia, []}). --rabbit_upgrade({add_ip_to_listener, mnesia, []}). --rabbit_upgrade({internal_exchanges, mnesia, []}). --rabbit_upgrade({user_to_internal_user, mnesia, [hash_passwords]}). --rabbit_upgrade({topic_trie, mnesia, []}). --rabbit_upgrade({semi_durable_route, mnesia, []}). --rabbit_upgrade({exchange_event_serial, mnesia, []}). --rabbit_upgrade({trace_exchanges, mnesia, [internal_exchanges]}). --rabbit_upgrade({user_admin_to_tags, mnesia, [user_to_internal_user]}). --rabbit_upgrade({ha_mirrors, mnesia, []}). --rabbit_upgrade({gm, mnesia, []}). --rabbit_upgrade({exchange_scratch, mnesia, [trace_exchanges]}). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --spec(remove_user_scope/0 :: () -> 'ok'). --spec(hash_passwords/0 :: () -> 'ok'). --spec(add_ip_to_listener/0 :: () -> 'ok'). --spec(internal_exchanges/0 :: () -> 'ok'). --spec(user_to_internal_user/0 :: () -> 'ok'). --spec(topic_trie/0 :: () -> 'ok'). --spec(semi_durable_route/0 :: () -> 'ok'). --spec(exchange_event_serial/0 :: () -> 'ok'). --spec(trace_exchanges/0 :: () -> 'ok'). --spec(user_admin_to_tags/0 :: () -> 'ok'). --spec(ha_mirrors/0 :: () -> 'ok'). --spec(gm/0 :: () -> 'ok'). --spec(exchange_scratch/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -%% It's a bad idea to use records or record_info here, even for the -%% destination form. Because in the future, the destination form of -%% your current transform may not match the record any more, and it -%% would be messy to have to go back and fix old transforms at that -%% point. - -remove_user_scope() -> - transform( - rabbit_user_permission, - fun ({user_permission, UV, {permission, _Scope, Conf, Write, Read}}) -> - {user_permission, UV, {permission, Conf, Write, Read}} - end, - [user_vhost, permission]). - -hash_passwords() -> - transform( - rabbit_user, - fun ({user, Username, Password, IsAdmin}) -> - Hash = rabbit_auth_backend_internal:hash_password(Password), - {user, Username, Hash, IsAdmin} - end, - [username, password_hash, is_admin]). - -add_ip_to_listener() -> - transform( - rabbit_listener, - fun ({listener, Node, Protocol, Host, Port}) -> - {listener, Node, Protocol, Host, {0,0,0,0}, Port} - end, - [node, protocol, host, ip_address, port]). - -internal_exchanges() -> - Tables = [rabbit_exchange, rabbit_durable_exchange], - AddInternalFun = - fun ({exchange, Name, Type, Durable, AutoDelete, Args}) -> - {exchange, Name, Type, Durable, AutoDelete, false, Args} - end, - [ ok = transform(T, - AddInternalFun, - [name, type, durable, auto_delete, internal, arguments]) - || T <- Tables ], - ok. - -user_to_internal_user() -> - transform( - rabbit_user, - fun({user, Username, PasswordHash, IsAdmin}) -> - {internal_user, Username, PasswordHash, IsAdmin} - end, - [username, password_hash, is_admin], internal_user). - -topic_trie() -> - create(rabbit_topic_trie_edge, [{record_name, topic_trie_edge}, - {attributes, [trie_edge, node_id]}, - {type, ordered_set}]), - create(rabbit_topic_trie_binding, [{record_name, topic_trie_binding}, - {attributes, [trie_binding, value]}, - {type, ordered_set}]). - -semi_durable_route() -> - create(rabbit_semi_durable_route, [{record_name, route}, - {attributes, [binding, value]}]). - -exchange_event_serial() -> - create(rabbit_exchange_serial, [{record_name, exchange_serial}, - {attributes, [name, next]}]). - -trace_exchanges() -> - [declare_exchange( - rabbit_misc:r(VHost, exchange, <<"amq.rabbitmq.trace">>), topic) || - VHost <- rabbit_vhost:list()], - ok. - -user_admin_to_tags() -> - transform( - rabbit_user, - fun({internal_user, Username, PasswordHash, true}) -> - {internal_user, Username, PasswordHash, [administrator]}; - ({internal_user, Username, PasswordHash, false}) -> - {internal_user, Username, PasswordHash, [management]} - end, - [username, password_hash, tags], internal_user). - -ha_mirrors() -> - Tables = [rabbit_queue, rabbit_durable_queue], - AddMirrorPidsFun = - fun ({amqqueue, Name, Durable, AutoDelete, Owner, Arguments, Pid}) -> - {amqqueue, Name, Durable, AutoDelete, Owner, Arguments, Pid, - [], undefined} - end, - [ ok = transform(T, - AddMirrorPidsFun, - [name, durable, auto_delete, exclusive_owner, arguments, - pid, slave_pids, mirror_nodes]) - || T <- Tables ], - ok. - -gm() -> - create(gm_group, [{record_name, gm_group}, - {attributes, [name, version, members]}]). - -exchange_scratch() -> - ok = exchange_scratch(rabbit_exchange), - ok = exchange_scratch(rabbit_durable_exchange). - -exchange_scratch(Table) -> - transform( - Table, - fun ({exchange, Name, Type, Dur, AutoDel, Int, Args}) -> - {exchange, Name, Type, Dur, AutoDel, Int, Args, undefined} - end, - [name, type, durable, auto_delete, internal, arguments, scratch]). - -%%-------------------------------------------------------------------- - -transform(TableName, Fun, FieldList) -> - rabbit_mnesia:wait_for_tables([TableName]), - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList), - ok. - -transform(TableName, Fun, FieldList, NewRecordName) -> - rabbit_mnesia:wait_for_tables([TableName]), - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList, - NewRecordName), - ok. - -create(Tab, TabDef) -> - {atomic, ok} = mnesia:create_table(Tab, TabDef), - ok. - -%% Dumb replacement for rabbit_exchange:declare that does not require -%% the exchange type registry or worker pool to be running by dint of -%% not validating anything and assuming the exchange type does not -%% require serialisation. -%% NB: this assumes the pre-exchange-scratch-space format -declare_exchange(XName, Type) -> - X = {exchange, XName, Type, true, false, false, []}, - ok = mnesia:dirty_write(rabbit_durable_exchange, X). diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl deleted file mode 100644 index ea72de66..00000000 --- a/src/rabbit_variable_queue.erl +++ /dev/null @@ -1,1686 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_variable_queue). - --export([init/3, terminate/2, delete_and_terminate/2, - purge/1, publish/4, publish_delivered/5, drain_confirmed/1, - dropwhile/2, fetch/2, ack/2, requeue/3, len/1, is_empty/1, - set_ram_duration_target/2, ram_duration/1, - needs_timeout/1, timeout/1, handle_pre_hibernate/1, - status/1, invoke/3, is_duplicate/2, discard/3, - multiple_routing_keys/0]). - --export([start/1, stop/0]). - -%% exported for testing only --export([start_msg_store/2, stop_msg_store/0, init/5]). - -%%---------------------------------------------------------------------------- -%% Definitions: - -%% alpha: this is a message where both the message itself, and its -%% position within the queue are held in RAM -%% -%% beta: this is a message where the message itself is only held on -%% disk, but its position within the queue is held in RAM. -%% -%% gamma: this is a message where the message itself is only held on -%% disk, but its position is both in RAM and on disk. -%% -%% delta: this is a collection of messages, represented by a single -%% term, where the messages and their position are only held on -%% disk. -%% -%% Note that for persistent messages, the message and its position -%% within the queue are always held on disk, *in addition* to being in -%% one of the above classifications. -%% -%% Also note that within this code, the term gamma never -%% appears. Instead, gammas are defined by betas who have had their -%% queue position recorded on disk. -%% -%% In general, messages move q1 -> q2 -> delta -> q3 -> q4, though -%% many of these steps are frequently skipped. q1 and q4 only hold -%% alphas, q2 and q3 hold both betas and gammas (as queues of queues, -%% using the bpqueue module where the block prefix determines whether -%% they're betas or gammas). When a message arrives, its -%% classification is determined. It is then added to the rightmost -%% appropriate queue. -%% -%% If a new message is determined to be a beta or gamma, q1 is -%% empty. If a new message is determined to be a delta, q1 and q2 are -%% empty (and actually q4 too). -%% -%% When removing messages from a queue, if q4 is empty then q3 is read -%% directly. If q3 becomes empty then the next segment's worth of -%% messages from delta are read into q3, reducing the size of -%% delta. If the queue is non empty, either q4 or q3 contain -%% entries. It is never permitted for delta to hold all the messages -%% in the queue. -%% -%% The duration indicated to us by the memory_monitor is used to -%% calculate, given our current ingress and egress rates, how many -%% messages we should hold in RAM. We track the ingress and egress -%% rates for both messages and pending acks and rates for both are -%% considered when calculating the number of messages to hold in -%% RAM. When we need to push alphas to betas or betas to gammas, we -%% favour writing out messages that are further from the head of the -%% queue. This minimises writes to disk, as the messages closer to the -%% tail of the queue stay in the queue for longer, thus do not need to -%% be replaced as quickly by sending other messages to disk. -%% -%% Whilst messages are pushed to disk and forgotten from RAM as soon -%% as requested by a new setting of the queue RAM duration, the -%% inverse is not true: we only load messages back into RAM as -%% demanded as the queue is read from. Thus only publishes to the -%% queue will take up available spare capacity. -%% -%% When we report our duration to the memory monitor, we calculate -%% average ingress and egress rates over the last two samples, and -%% then calculate our duration based on the sum of the ingress and -%% egress rates. More than two samples could be used, but it's a -%% balance between responding quickly enough to changes in -%% producers/consumers versus ignoring temporary blips. The problem -%% with temporary blips is that with just a few queues, they can have -%% substantial impact on the calculation of the average duration and -%% hence cause unnecessary I/O. Another alternative is to increase the -%% amqqueue_process:RAM_DURATION_UPDATE_PERIOD to beyond 5 -%% seconds. However, that then runs the risk of being too slow to -%% inform the memory monitor of changes. Thus a 5 second interval, -%% plus a rolling average over the last two samples seems to work -%% well in practice. -%% -%% The sum of the ingress and egress rates is used because the egress -%% rate alone is not sufficient. Adding in the ingress rate means that -%% queues which are being flooded by messages are given more memory, -%% resulting in them being able to process the messages faster (by -%% doing less I/O, or at least deferring it) and thus helping keep -%% their mailboxes empty and thus the queue as a whole is more -%% responsive. If such a queue also has fast but previously idle -%% consumers, the consumer can then start to be driven as fast as it -%% can go, whereas if only egress rate was being used, the incoming -%% messages may have to be written to disk and then read back in, -%% resulting in the hard disk being a bottleneck in driving the -%% consumers. Generally, we want to give Rabbit every chance of -%% getting rid of messages as fast as possible and remaining -%% responsive, and using only the egress rate impacts that goal. -%% -%% If a queue is full of transient messages, then the transition from -%% betas to deltas will be potentially very expensive as millions of -%% entries must be written to disk by the queue_index module. This can -%% badly stall the queue. In order to avoid this, the proportion of -%% gammas / (betas+gammas) must not be lower than (betas+gammas) / -%% (alphas+betas+gammas). As the queue grows or available memory -%% shrinks, the latter ratio increases, requiring the conversion of -%% more gammas to betas in order to maintain the invariant. At the -%% point at which betas and gammas must be converted to deltas, there -%% should be very few betas remaining, thus the transition is fast (no -%% work needs to be done for the gamma -> delta transition). -%% -%% The conversion of betas to gammas is done in batches of exactly -%% ?IO_BATCH_SIZE. This value should not be too small, otherwise the -%% frequent operations on the queues of q2 and q3 will not be -%% effectively amortised (switching the direction of queue access -%% defeats amortisation), nor should it be too big, otherwise -%% converting a batch stalls the queue for too long. Therefore, it -%% must be just right. ram_index_count is used here and is the number -%% of betas. -%% -%% The conversion from alphas to betas is also chunked, but only to -%% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at -%% any one time. This further smooths the effects of changes to the -%% target_ram_count and ensures the queue remains responsive -%% even when there is a large amount of IO work to do. The -%% timeout callback is utilised to ensure that conversions are -%% done as promptly as possible whilst ensuring the queue remains -%% responsive. -%% -%% In the queue we keep track of both messages that are pending -%% delivery and messages that are pending acks. In the event of a -%% queue purge, we only need to load qi segments if the queue has -%% elements in deltas (i.e. it came under significant memory -%% pressure). In the event of a queue deletion, in addition to the -%% preceding, by keeping track of pending acks in RAM, we do not need -%% to search through qi segments looking for messages that are yet to -%% be acknowledged. -%% -%% Pending acks are recorded in memory either as the tuple {SeqId, -%% MsgId, MsgProps} (tuple-form) or as the message itself (message- -%% form). Acks for persistent messages are always stored in the tuple- -%% form. Acks for transient messages are also stored in tuple-form if -%% the message has been sent to disk as part of the memory reduction -%% process. For transient messages that haven't already been written -%% to disk, acks are stored in message-form. -%% -%% During memory reduction, acks stored in message-form are converted -%% to tuple-form, and the corresponding messages are pushed out to -%% disk. -%% -%% The order in which alphas are pushed to betas and message-form acks -%% are pushed to disk is determined dynamically. We always prefer to -%% push messages for the source (alphas or acks) that is growing the -%% fastest (with growth measured as avg. ingress - avg. egress). In -%% each round of memory reduction a chunk of messages at most -%% ?IO_BATCH_SIZE in size is allocated to be pushed to disk. The -%% fastest growing source will be reduced by as much of this chunk as -%% possible. If there is any remaining allocation in the chunk after -%% the first source has been reduced to zero, the second source will -%% be reduced by as much of the remaining chunk as possible. -%% -%% Notes on Clean Shutdown -%% (This documents behaviour in variable_queue, queue_index and -%% msg_store.) -%% -%% In order to try to achieve as fast a start-up as possible, if a -%% clean shutdown occurs, we try to save out state to disk to reduce -%% work on startup. In the msg_store this takes the form of the -%% index_module's state, plus the file_summary ets table, and client -%% refs. In the VQ, this takes the form of the count of persistent -%% messages in the queue and references into the msg_stores. The -%% queue_index adds to these terms the details of its segments and -%% stores the terms in the queue directory. -%% -%% Two message stores are used. One is created for persistent messages -%% to durable queues that must survive restarts, and the other is used -%% for all other messages that just happen to need to be written to -%% disk. On start up we can therefore nuke the transient message -%% store, and be sure that the messages in the persistent store are -%% all that we need. -%% -%% The references to the msg_stores are there so that the msg_store -%% knows to only trust its saved state if all of the queues it was -%% previously talking to come up cleanly. Likewise, the queues -%% themselves (esp queue_index) skips work in init if all the queues -%% and msg_store were shutdown cleanly. This gives both good speed -%% improvements and also robustness so that if anything possibly went -%% wrong in shutdown (or there was subsequent manual tampering), all -%% messages and queues that can be recovered are recovered, safely. -%% -%% To delete transient messages lazily, the variable_queue, on -%% startup, stores the next_seq_id reported by the queue_index as the -%% transient_threshold. From that point on, whenever it's reading a -%% message off disk via the queue_index, if the seq_id is below this -%% threshold and the message is transient then it drops the message -%% (the message itself won't exist on disk because it would have been -%% stored in the transient msg_store which would have had its saved -%% state nuked on startup). This avoids the expensive operation of -%% scanning the entire queue on startup in order to delete transient -%% messages that were only pushed to disk to save memory. -%% -%%---------------------------------------------------------------------------- - --behaviour(rabbit_backing_queue). - --record(vqstate, - { q1, - q2, - delta, - q3, - q4, - next_seq_id, - pending_ack, - pending_ack_index, - ram_ack_index, - index_state, - msg_store_clients, - durable, - transient_threshold, - - async_callback, - - len, - persistent_count, - - target_ram_count, - ram_msg_count, - ram_msg_count_prev, - ram_ack_count_prev, - ram_index_count, - out_counter, - in_counter, - rates, - msgs_on_disk, - msg_indices_on_disk, - unconfirmed, - confirmed, - ack_out_counter, - ack_in_counter, - ack_rates - }). - --record(rates, { egress, ingress, avg_egress, avg_ingress, timestamp }). - --record(msg_status, - { seq_id, - msg_id, - msg, - is_persistent, - is_delivered, - msg_on_disk, - index_on_disk, - msg_props - }). - --record(delta, - { start_seq_id, %% start_seq_id is inclusive - count, - end_seq_id %% end_seq_id is exclusive - }). - -%% When we discover, on publish, that we should write some indices to -%% disk for some betas, the IO_BATCH_SIZE sets the number of betas -%% that we must be due to write indices for before we do any work at -%% all. This is both a minimum and a maximum - we don't write fewer -%% than IO_BATCH_SIZE indices out in one go, and we don't write more - -%% we can always come back on the next publish to do more. --define(IO_BATCH_SIZE, 64). --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({multiple_routing_keys, local, []}). - --ifdef(use_specs). - --type(timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --type(seq_id() :: non_neg_integer()). --type(ack() :: seq_id()). - --type(rates() :: #rates { egress :: {timestamp(), non_neg_integer()}, - ingress :: {timestamp(), non_neg_integer()}, - avg_egress :: float(), - avg_ingress :: float(), - timestamp :: timestamp() }). - --type(delta() :: #delta { start_seq_id :: non_neg_integer(), - count :: non_neg_integer(), - end_seq_id :: non_neg_integer() }). - --type(state() :: #vqstate { - q1 :: queue(), - q2 :: bpqueue:bpqueue(), - delta :: delta(), - q3 :: bpqueue:bpqueue(), - q4 :: queue(), - next_seq_id :: seq_id(), - pending_ack :: dict(), - ram_ack_index :: gb_tree(), - index_state :: any(), - msg_store_clients :: 'undefined' | {{any(), binary()}, - {any(), binary()}}, - durable :: boolean(), - transient_threshold :: non_neg_integer(), - - async_callback :: async_callback(), - - len :: non_neg_integer(), - persistent_count :: non_neg_integer(), - - target_ram_count :: non_neg_integer() | 'infinity', - ram_msg_count :: non_neg_integer(), - ram_msg_count_prev :: non_neg_integer(), - ram_index_count :: non_neg_integer(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), - rates :: rates(), - msgs_on_disk :: gb_set(), - msg_indices_on_disk :: gb_set(), - unconfirmed :: gb_set(), - confirmed :: gb_set(), - ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer(), - ack_rates :: rates() }). - --include("rabbit_backing_queue_spec.hrl"). - --spec(multiple_routing_keys/0 :: () -> 'ok'). - --endif. - --define(BLANK_DELTA, #delta { start_seq_id = undefined, - count = 0, - end_seq_id = undefined }). --define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, - count = 0, - end_seq_id = Z }). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start(DurableQueues) -> - {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), - start_msg_store( - [Ref || Terms <- AllTerms, - begin - Ref = proplists:get_value(persistent_ref, Terms), - Ref =/= undefined - end], - StartFunState). - -stop() -> stop_msg_store(). - -start_msg_store(Refs, StartFunState) -> - ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, - [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), - undefined, {fun (ok) -> finished end, ok}]), - ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, - [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), - Refs, StartFunState]). - -stop_msg_store() -> - ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), - ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). - -init(Queue, Recover, AsyncCallback) -> - init(Queue, Recover, AsyncCallback, - fun (MsgIds, ActionTaken) -> - msgs_written_to_disk(AsyncCallback, MsgIds, ActionTaken) - end, - fun (MsgIds) -> msg_indices_written_to_disk(AsyncCallback, MsgIds) end). - -init(#amqqueue { name = QueueName, durable = IsDurable }, false, - AsyncCallback, MsgOnDiskFun, MsgIdxOnDiskFun) -> - IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), - init(IsDurable, IndexState, 0, [], AsyncCallback, - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskFun, AsyncCallback); - false -> undefined - end, - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined, AsyncCallback)); - -init(#amqqueue { name = QueueName, durable = true }, true, - AsyncCallback, MsgOnDiskFun, MsgIdxOnDiskFun) -> - Terms = rabbit_queue_index:shutdown_terms(QueueName), - {PRef, TRef, Terms1} = - case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of - [] -> {proplists:get_value(persistent_ref, Terms), - proplists:get_value(transient_ref, Terms), - Terms}; - _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} - end, - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef, - MsgOnDiskFun, AsyncCallback), - TransientClient = msg_store_client_init(?TRANSIENT_MSG_STORE, TRef, - undefined, AsyncCallback), - {DeltaCount, IndexState} = - rabbit_queue_index:recover( - QueueName, Terms1, - rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), - fun (MsgId) -> - rabbit_msg_store:contains(MsgId, PersistentClient) - end, - MsgIdxOnDiskFun), - init(true, IndexState, DeltaCount, Terms1, AsyncCallback, - PersistentClient, TransientClient). - -terminate(_Reason, State) -> - State1 = #vqstate { persistent_count = PCount, - index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(true, State), - PRef = case MSCStateP of - undefined -> undefined; - _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), - rabbit_msg_store:client_ref(MSCStateP) - end, - ok = rabbit_msg_store:client_terminate(MSCStateT), - TRef = rabbit_msg_store:client_ref(MSCStateT), - Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}, - {persistent_count, PCount}], - a(State1 #vqstate { index_state = rabbit_queue_index:terminate( - Terms, IndexState), - msg_store_clients = undefined }). - -%% the only difference between purge and delete is that delete also -%% needs to delete everything that's been delivered and not ack'd. -delete_and_terminate(_Reason, State) -> - %% TODO: there is no need to interact with qi at all - which we do - %% as part of 'purge' and 'remove_pending_ack', other than - %% deleting it. - {_PurgeCount, State1} = purge(State), - State2 = #vqstate { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(false, State1), - IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), - case MSCStateP of - undefined -> ok; - _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) - end, - rabbit_msg_store:client_delete_and_terminate(MSCStateT), - a(State2 #vqstate { index_state = IndexState1, - msg_store_clients = undefined }). - -purge(State = #vqstate { q4 = Q4, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% TODO: when there are no pending acks, which is a common case, - %% we could simply wipe the qi instead of issuing delivers and - %% acks for all the messages. - {LensByStore, IndexState1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q4, - orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #vqstate { q1 = Q1, - index_state = IndexState2, - msg_store_clients = MSCState1 }} = - purge_betas_and_deltas(LensByStore, - State #vqstate { q4 = queue:new(), - index_state = IndexState1 }), - {LensByStore2, IndexState3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q1, - LensByStore1, IndexState2, MSCState1), - PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, a(State1 #vqstate { q1 = queue:new(), - index_state = IndexState3, - len = 0, - ram_msg_count = 0, - ram_index_count = 0, - persistent_count = PCount1 })}. - -publish(Msg, MsgProps, _ChPid, State) -> - {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), - a(reduce_memory_use(State1)). - -publish_delivered(false, #basic_message { id = MsgId }, - #message_properties { needs_confirming = NeedsConfirming }, - _ChPid, State = #vqstate { async_callback = Callback, - len = 0 }) -> - case NeedsConfirming of - true -> blind_confirm(Callback, gb_sets:singleton(MsgId)); - false -> ok - end, - {undefined, a(State)}; -publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, - id = MsgId }, - MsgProps = #message_properties { - needs_confirming = NeedsConfirming }, - _ChPid, State = #vqstate { len = 0, - next_seq_id = SeqId, - out_counter = OutCount, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = true }, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = record_pending_ack(m(MsgStatus1), State1), - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, MsgId, UC), - {SeqId, a(reduce_memory_use( - State2 #vqstate { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - unconfirmed = UC1 }))}. - -drain_confirmed(State = #vqstate { confirmed = C }) -> - {gb_sets:to_list(C), State #vqstate { confirmed = gb_sets:new() }}. - -dropwhile(Pred, State) -> - case queue_out(State) of - {empty, State1} -> - a(State1); - {{value, MsgStatus = #msg_status { msg_props = MsgProps }}, State1} -> - case Pred(MsgProps) of - true -> {_, State2} = internal_fetch(false, MsgStatus, State1), - dropwhile(Pred, State2); - false -> a(in_r(MsgStatus, State1)) - end - end. - -fetch(AckRequired, State) -> - case queue_out(State) of - {empty, State1} -> - {empty, a(State1)}; - {{value, MsgStatus}, State1} -> - %% it is possible that the message wasn't read from disk - %% at this point, so read it in. - {MsgStatus1, State2} = read_msg(MsgStatus, State1), - {Res, State3} = internal_fetch(AckRequired, MsgStatus1, State2), - {Res, a(State3)} - end. - -ack(AckTags, State) -> - {MsgIds, State1} = ack(fun msg_store_remove/3, - fun (_, State0) -> State0 end, - AckTags, State), - {MsgIds, a(State1)}. - -requeue(AckTags, MsgPropsFun, State) -> - MsgPropsFun1 = fun (MsgProps) -> - (MsgPropsFun(MsgProps)) #message_properties { - needs_confirming = false } - end, - {MsgIds, State1} = - ack(fun (_, _, _) -> ok end, - fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> - {_SeqId, State2} = publish(Msg, MsgPropsFun1(MsgProps), - true, false, State1), - State2; - ({IsPersistent, MsgId, MsgProps}, State1) -> - #vqstate { msg_store_clients = MSCState } = State1, - {{ok, Msg = #basic_message{}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, MsgId), - State2 = State1 #vqstate { msg_store_clients = MSCState1 }, - {_SeqId, State3} = publish(Msg, MsgPropsFun1(MsgProps), - true, true, State2), - State3 - end, - AckTags, State), - {MsgIds, a(reduce_memory_use(State1))}. - -len(#vqstate { len = Len }) -> Len. - -is_empty(State) -> 0 == len(State). - -set_ram_duration_target( - DurationTarget, State = #vqstate { - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate }, - target_ram_count = TargetRamCount }) -> - Rate = - AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, - TargetRamCount1 = - case DurationTarget of - infinity -> infinity; - _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec - end, - State1 = State #vqstate { target_ram_count = TargetRamCount1 }, - a(case TargetRamCount1 == infinity orelse - (TargetRamCount =/= infinity andalso - TargetRamCount1 >= TargetRamCount) of - true -> State1; - false -> reduce_memory_use(State1) - end). - -ram_duration(State = #vqstate { - rates = #rates { timestamp = Timestamp, - egress = Egress, - ingress = Ingress } = Rates, - ack_rates = #rates { timestamp = AckTimestamp, - egress = AckEgress, - ingress = AckIngress } = ARates, - in_counter = InCount, - out_counter = OutCount, - ack_in_counter = AckInCount, - ack_out_counter = AckOutCount, - ram_msg_count = RamMsgCount, - ram_msg_count_prev = RamMsgCountPrev, - ram_ack_index = RamAckIndex, - ram_ack_count_prev = RamAckCountPrev }) -> - Now = now(), - {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), - {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), - - {AvgAckEgressRate, AckEgress1} = - update_rate(Now, AckTimestamp, AckOutCount, AckEgress), - {AvgAckIngressRate, AckIngress1} = - update_rate(Now, AckTimestamp, AckInCount, AckIngress), - - RamAckCount = gb_trees:size(RamAckIndex), - - Duration = %% msgs+acks / (msgs+acks/sec) == sec - case (AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso - AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0) of - true -> infinity; - false -> (RamMsgCountPrev + RamMsgCount + - RamAckCount + RamAckCountPrev) / - (4 * (AvgEgressRate + AvgIngressRate + - AvgAckEgressRate + AvgAckIngressRate)) - end, - - {Duration, State #vqstate { - rates = Rates #rates { - egress = Egress1, - ingress = Ingress1, - avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate, - timestamp = Now }, - ack_rates = ARates #rates { - egress = AckEgress1, - ingress = AckIngress1, - avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate, - timestamp = Now }, - in_counter = 0, - out_counter = 0, - ack_in_counter = 0, - ack_out_counter = 0, - ram_msg_count_prev = RamMsgCount, - ram_ack_count_prev = RamAckCount }}. - -needs_timeout(State) -> - case needs_index_sync(State) of - false -> case reduce_memory_use( - fun (_Quota, State1) -> {0, State1} end, - fun (_Quota, State1) -> State1 end, - fun (State1) -> State1 end, - fun (_Quota, State1) -> {0, State1} end, - State) of - {true, _State} -> idle; - {false, _State} -> false - end; - true -> timed - end. - -timeout(State) -> - a(reduce_memory_use(confirm_commit_index(State))). - -handle_pre_hibernate(State = #vqstate { index_state = IndexState }) -> - State #vqstate { index_state = rabbit_queue_index:flush(IndexState) }. - -status(#vqstate { - q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - pending_ack = PA, - ram_ack_index = RAI, - target_ram_count = TargetRamCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, - next_seq_id = NextSeqId, - persistent_count = PersistentCount, - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate } }) -> - [ {q1 , queue:len(Q1)}, - {q2 , bpqueue:len(Q2)}, - {delta , Delta}, - {q3 , bpqueue:len(Q3)}, - {q4 , queue:len(Q4)}, - {len , Len}, - {pending_acks , dict:size(PA)}, - {target_ram_count , TargetRamCount}, - {ram_msg_count , RamMsgCount}, - {ram_ack_count , gb_trees:size(RAI)}, - {ram_index_count , RamIndexCount}, - {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount}, - {avg_ingress_rate , AvgIngressRate}, - {avg_egress_rate , AvgEgressRate}, - {avg_ack_ingress_rate, AvgAckIngressRate}, - {avg_ack_egress_rate , AvgAckEgressRate} ]. - -invoke(?MODULE, Fun, State) -> Fun(?MODULE, State). - -is_duplicate(_Msg, State) -> {false, State}. - -discard(_Msg, _ChPid, State) -> State. - -%%---------------------------------------------------------------------------- -%% Minor helpers -%%---------------------------------------------------------------------------- - -a(State = #vqstate { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - persistent_count = PersistentCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }) -> - E1 = queue:is_empty(Q1), - E2 = bpqueue:is_empty(Q2), - ED = Delta#delta.count == 0, - E3 = bpqueue:is_empty(Q3), - E4 = queue:is_empty(Q4), - LZ = Len == 0, - - true = E1 or not E3, - true = E2 or not ED, - true = ED or not E3, - true = LZ == (E3 and E4), - - true = Len >= 0, - true = PersistentCount >= 0, - true = RamMsgCount >= 0, - true = RamIndexCount >= 0, - - State. - -m(MsgStatus = #msg_status { msg = Msg, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }) -> - true = (not IsPersistent) or IndexOnDisk, - true = (not IndexOnDisk) or MsgOnDisk, - true = (Msg =/= undefined) or MsgOnDisk, - - MsgStatus. - -one_if(true ) -> 1; -one_if(false) -> 0. - -cons_if(true, E, L) -> [E | L]; -cons_if(false, _E, L) -> L. - -gb_sets_maybe_insert(false, _Val, Set) -> Set; -%% when requeueing, we re-add a msg_id to the unconfirmed set -gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). - -msg_status(IsPersistent, SeqId, Msg = #basic_message { id = MsgId }, - MsgProps) -> - #msg_status { seq_id = SeqId, msg_id = MsgId, msg = Msg, - is_persistent = IsPersistent, is_delivered = false, - msg_on_disk = false, index_on_disk = false, - msg_props = MsgProps }. - -with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> - {Result, MSCStateP1} = Fun(MSCStateP), - {Result, {MSCStateP1, MSCStateT}}; -with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> - {Result, MSCStateT1} = Fun(MSCStateT), - {Result, {MSCStateP, MSCStateT1}}. - -with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> - {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, - fun (MSCState1) -> - {Fun(MSCState1), MSCState1} - end), - Res. - -msg_store_client_init(MsgStore, MsgOnDiskFun, Callback) -> - msg_store_client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun, Callback). - -msg_store_client_init(MsgStore, Ref, MsgOnDiskFun, Callback) -> - CloseFDsFun = msg_store_close_fds_fun(MsgStore =:= ?PERSISTENT_MSG_STORE), - rabbit_msg_store:client_init(MsgStore, Ref, MsgOnDiskFun, - fun () -> Callback(?MODULE, CloseFDsFun) end). - -msg_store_write(MSCState, IsPersistent, MsgId, Msg) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:write(MsgId, Msg, MSCState1) end). - -msg_store_read(MSCState, IsPersistent, MsgId) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:read(MsgId, MSCState1) end). - -msg_store_remove(MSCState, IsPersistent, MsgIds) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:remove(MsgIds, MCSState1) end). - -msg_store_close_fds(MSCState, IsPersistent) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:close_all_indicated(MSCState1) end). - -msg_store_close_fds_fun(IsPersistent) -> - fun (?MODULE, State = #vqstate { msg_store_clients = MSCState }) -> - {ok, MSCState1} = msg_store_close_fds(MSCState, IsPersistent), - State #vqstate { msg_store_clients = MSCState1 } - end. - -maybe_write_delivered(false, _SeqId, IndexState) -> - IndexState; -maybe_write_delivered(true, SeqId, IndexState) -> - rabbit_queue_index:deliver([SeqId], IndexState). - -betas_from_index_entries(List, TransientThreshold, IndexState) -> - {Filtered, Delivers, Acks} = - lists:foldr( - fun ({MsgId, SeqId, MsgProps, IsPersistent, IsDelivered}, - {Filtered1, Delivers1, Acks1}) -> - case SeqId < TransientThreshold andalso not IsPersistent of - true -> {Filtered1, - cons_if(not IsDelivered, SeqId, Delivers1), - [SeqId | Acks1]}; - false -> {[m(#msg_status { msg = undefined, - msg_id = MsgId, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true, - msg_props = MsgProps - }) | Filtered1], - Delivers1, - Acks1} - end - end, {[], [], []}, List), - {bpqueue:from_list([{true, Filtered}]), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -%% the first arg is the older delta -combine_deltas(?BLANK_DELTA_PATTERN(X), ?BLANK_DELTA_PATTERN(Y)) -> - ?BLANK_DELTA; -combine_deltas(?BLANK_DELTA_PATTERN(X), #delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = B) -> - true = Start + Count =< End, %% ASSERTION - B; -combine_deltas(#delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = A, ?BLANK_DELTA_PATTERN(Y)) -> - true = Start + Count =< End, %% ASSERTION - A; -combine_deltas(#delta { start_seq_id = StartLow, - count = CountLow, - end_seq_id = EndLow }, - #delta { start_seq_id = StartHigh, - count = CountHigh, - end_seq_id = EndHigh }) -> - Count = CountLow + CountHigh, - true = (StartLow =< StartHigh) %% ASSERTIONS - andalso ((StartLow + CountLow) =< EndLow) - andalso ((StartHigh + CountHigh) =< EndHigh) - andalso ((StartLow + Count) =< EndHigh), - #delta { start_seq_id = StartLow, count = Count, end_seq_id = EndHigh }. - -beta_fold(Fun, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). - -update_rate(Now, Then, Count, {OThen, OCount}) -> - %% avg over the current period and the previous - {1000000.0 * (Count + OCount) / timer:now_diff(Now, OThen), {Then, Count}}. - -%%---------------------------------------------------------------------------- -%% Internal major helpers for Public API -%%---------------------------------------------------------------------------- - -init(IsDurable, IndexState, DeltaCount, Terms, AsyncCallback, - PersistentClient, TransientClient) -> - {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), - - DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), - Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of - true -> ?BLANK_DELTA; - false -> #delta { start_seq_id = LowSeqId, - count = DeltaCount1, - end_seq_id = NextSeqId } - end, - Now = now(), - State = #vqstate { - q1 = queue:new(), - q2 = bpqueue:new(), - delta = Delta, - q3 = bpqueue:new(), - q4 = queue:new(), - next_seq_id = NextSeqId, - pending_ack = dict:new(), - ram_ack_index = gb_trees:empty(), - index_state = IndexState1, - msg_store_clients = {PersistentClient, TransientClient}, - durable = IsDurable, - transient_threshold = NextSeqId, - - async_callback = AsyncCallback, - - len = DeltaCount1, - persistent_count = DeltaCount1, - - target_ram_count = infinity, - ram_msg_count = 0, - ram_msg_count_prev = 0, - ram_ack_count_prev = 0, - ram_index_count = 0, - out_counter = 0, - in_counter = 0, - rates = blank_rate(Now, DeltaCount1), - msgs_on_disk = gb_sets:new(), - msg_indices_on_disk = gb_sets:new(), - unconfirmed = gb_sets:new(), - confirmed = gb_sets:new(), - ack_out_counter = 0, - ack_in_counter = 0, - ack_rates = blank_rate(Now, 0) }, - a(maybe_deltas_to_betas(State)). - -blank_rate(Timestamp, IngressLength) -> - #rates { egress = {Timestamp, 0}, - ingress = {Timestamp, IngressLength}, - avg_egress = 0.0, - avg_ingress = 0.0, - timestamp = Timestamp }. - -in_r(MsgStatus = #msg_status { msg = undefined, index_on_disk = IndexOnDisk }, - State = #vqstate { q3 = Q3, q4 = Q4, ram_index_count = RamIndexCount }) -> - case queue:is_empty(Q4) of - true -> State #vqstate { - q3 = bpqueue:in_r(IndexOnDisk, MsgStatus, Q3), - ram_index_count = RamIndexCount + one_if(not IndexOnDisk) }; - false -> {MsgStatus1, State1 = #vqstate { q4 = Q4a }} = - read_msg(MsgStatus, State), - State1 #vqstate { q4 = queue:in_r(MsgStatus1, Q4a) } - end; -in_r(MsgStatus, State = #vqstate { q4 = Q4 }) -> - State #vqstate { q4 = queue:in_r(MsgStatus, Q4) }. - -queue_out(State = #vqstate { q4 = Q4 }) -> - case queue:out(Q4) of - {empty, _Q4} -> - case fetch_from_q3(State) of - {empty, _State1} = Result -> Result; - {loaded, {MsgStatus, State1}} -> {{value, MsgStatus}, State1} - end; - {{value, MsgStatus}, Q4a} -> - {{value, MsgStatus}, State #vqstate { q4 = Q4a }} - end. - -read_msg(MsgStatus = #msg_status { msg = undefined, - msg_id = MsgId, - is_persistent = IsPersistent }, - State = #vqstate { ram_msg_count = RamMsgCount, - msg_store_clients = MSCState}) -> - {{ok, Msg = #basic_message {}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, MsgId), - {MsgStatus #msg_status { msg = Msg }, - State #vqstate { ram_msg_count = RamMsgCount + 1, - msg_store_clients = MSCState1 }}; -read_msg(MsgStatus, State) -> - {MsgStatus, State}. - -internal_fetch(AckRequired, MsgStatus = #msg_status { - seq_id = SeqId, - msg_id = MsgId, - msg = Msg, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - State = #vqstate {ram_msg_count = RamMsgCount, - out_counter = OutCount, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% 1. Mark it delivered if necessary - IndexState1 = maybe_write_delivered( - IndexOnDisk andalso not IsDelivered, - SeqId, IndexState), - - %% 2. Remove from msg_store and queue index, if necessary - Rem = fun () -> - ok = msg_store_remove(MSCState, IsPersistent, [MsgId]) - end, - Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, - IndexState2 = - case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of - {false, true, false, _} -> Rem(), IndexState1; - {false, true, true, _} -> Rem(), Ack(); - { true, true, true, false} -> Ack(); - _ -> IndexState1 - end, - - %% 3. If an ack is required, add something sensible to PA - {AckTag, State1} = case AckRequired of - true -> StateN = record_pending_ack( - MsgStatus #msg_status { - is_delivered = true }, State), - {SeqId, StateN}; - false -> {undefined, State} - end, - - PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), - Len1 = Len - 1, - RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), - - {{Msg, IsDelivered, AckTag, Len1}, - State1 #vqstate { ram_msg_count = RamMsgCount1, - out_counter = OutCount + 1, - index_state = IndexState2, - len = Len1, - persistent_count = PCount1 }}. - -purge_betas_and_deltas(LensByStore, - State = #vqstate { q3 = Q3, - index_state = IndexState, - msg_store_clients = MSCState }) -> - case bpqueue:is_empty(Q3) of - true -> {LensByStore, State}; - false -> {LensByStore1, IndexState1} = - remove_queue_entries(fun beta_fold/3, Q3, - LensByStore, IndexState, MSCState), - purge_betas_and_deltas(LensByStore1, - maybe_deltas_to_betas( - State #vqstate { - q3 = bpqueue:new(), - index_state = IndexState1 })) - end. - -remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> - {MsgIdsByStore, Delivers, Acks} = - Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), - ok = orddict:fold(fun (IsPersistent, MsgIds, ok) -> - msg_store_remove(MSCState, IsPersistent, MsgIds) - end, ok, MsgIdsByStore), - {sum_msg_ids_by_store_to_len(LensByStore, MsgIdsByStore), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -remove_queue_entries1( - #msg_status { msg_id = MsgId, seq_id = SeqId, - is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, - {MsgIdsByStore, Delivers, Acks}) -> - {case MsgOnDisk of - true -> rabbit_misc:orddict_cons(IsPersistent, MsgId, MsgIdsByStore); - false -> MsgIdsByStore - end, - cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), - cons_if(IndexOnDisk, SeqId, Acks)}. - -sum_msg_ids_by_store_to_len(LensByStore, MsgIdsByStore) -> - orddict:fold( - fun (IsPersistent, MsgIds, LensByStore1) -> - orddict:update_counter(IsPersistent, length(MsgIds), LensByStore1) - end, LensByStore, MsgIdsByStore). - -%%---------------------------------------------------------------------------- -%% Internal gubbins for publishing -%%---------------------------------------------------------------------------- - -publish(Msg = #basic_message { is_persistent = IsPersistent, id = MsgId }, - MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, MsgOnDisk, - State = #vqstate { q1 = Q1, q3 = Q3, q4 = Q4, - next_seq_id = SeqId, - len = Len, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - ram_msg_count = RamMsgCount, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = case bpqueue:is_empty(Q3) of - false -> State1 #vqstate { q1 = queue:in(m(MsgStatus1), Q1) }; - true -> State1 #vqstate { q4 = queue:in(m(MsgStatus1), Q4) } - end, - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, MsgId, UC), - {SeqId, State2 #vqstate { next_seq_id = SeqId + 1, - len = Len + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - ram_msg_count = RamMsgCount + 1, - unconfirmed = UC1 }}. - -maybe_write_msg_to_disk(_Force, MsgStatus = #msg_status { - msg_on_disk = true }, _MSCState) -> - MsgStatus; -maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { - msg = Msg, msg_id = MsgId, - is_persistent = IsPersistent }, MSCState) - when Force orelse IsPersistent -> - Msg1 = Msg #basic_message { - %% don't persist any recoverable decoded properties - content = rabbit_binary_parser:clear_decoded_content( - Msg #basic_message.content)}, - ok = msg_store_write(MSCState, IsPersistent, MsgId, Msg1), - MsgStatus #msg_status { msg_on_disk = true }; -maybe_write_msg_to_disk(_Force, MsgStatus, _MSCState) -> - MsgStatus. - -maybe_write_index_to_disk(_Force, MsgStatus = #msg_status { - index_on_disk = true }, IndexState) -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - {MsgStatus, IndexState}; -maybe_write_index_to_disk(Force, MsgStatus = #msg_status { - msg_id = MsgId, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_props = MsgProps}, IndexState) - when Force orelse IsPersistent -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - IndexState1 = rabbit_queue_index:publish( - MsgId, SeqId, MsgProps, IsPersistent, IndexState), - {MsgStatus #msg_status { index_on_disk = true }, - maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; -maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> - {MsgStatus, IndexState}. - -maybe_write_to_disk(ForceMsg, ForceIndex, MsgStatus, - State = #vqstate { index_state = IndexState, - msg_store_clients = MSCState }) -> - MsgStatus1 = maybe_write_msg_to_disk(ForceMsg, MsgStatus, MSCState), - {MsgStatus2, IndexState1} = - maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), - {MsgStatus2, State #vqstate { index_state = IndexState1 }}. - -%%---------------------------------------------------------------------------- -%% Internal gubbins for acks -%%---------------------------------------------------------------------------- - -record_pending_ack(#msg_status { seq_id = SeqId, - msg_id = MsgId, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - msg_props = MsgProps } = MsgStatus, - State = #vqstate { pending_ack = PA, - ram_ack_index = RAI, - ack_in_counter = AckInCount}) -> - {AckEntry, RAI1} = - case MsgOnDisk of - true -> {{IsPersistent, MsgId, MsgProps}, RAI}; - false -> {MsgStatus, gb_trees:insert(SeqId, MsgId, RAI)} - end, - PA1 = dict:store(SeqId, AckEntry, PA), - State #vqstate { pending_ack = PA1, - ram_ack_index = RAI1, - ack_in_counter = AckInCount + 1}. - -remove_pending_ack(KeepPersistent, - State = #vqstate { pending_ack = PA, - index_state = IndexState, - msg_store_clients = MSCState }) -> - {PersistentSeqIds, MsgIdsByStore, _AllMsgIds} = - dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - State1 = State #vqstate { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, - case KeepPersistent of - true -> case orddict:find(false, MsgIdsByStore) of - error -> State1; - {ok, MsgIds} -> ok = msg_store_remove(MSCState, false, - MsgIds), - State1 - end; - false -> IndexState1 = - rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = msg_store_remove(MSCState, IsPersistent, MsgIds) - || {IsPersistent, MsgIds} <- orddict:to_list(MsgIdsByStore)], - State1 #vqstate { index_state = IndexState1 } - end. - -ack(_MsgStoreFun, _Fun, [], State) -> - {[], State}; -ack(MsgStoreFun, Fun, AckTags, State) -> - {{PersistentSeqIds, MsgIdsByStore, AllMsgIds}, - State1 = #vqstate { index_state = IndexState, - msg_store_clients = MSCState, - persistent_count = PCount, - ack_out_counter = AckOutCount }} = - lists:foldl( - fun (SeqId, {Acc, State2 = #vqstate { pending_ack = PA, - ram_ack_index = RAI }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, State2 #vqstate { - pending_ack = dict:erase(SeqId, PA), - ram_ack_index = - gb_trees:delete_any(SeqId, RAI)})} - end, {accumulate_ack_init(), State}, AckTags), - IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = MsgStoreFun(MSCState, IsPersistent, MsgIds) - || {IsPersistent, MsgIds} <- orddict:to_list(MsgIdsByStore)], - PCount1 = PCount - find_persistent_count(sum_msg_ids_by_store_to_len( - orddict:new(), MsgIdsByStore)), - {lists:reverse(AllMsgIds), - State1 #vqstate { index_state = IndexState1, - persistent_count = PCount1, - ack_out_counter = AckOutCount + length(AckTags) }}. - -accumulate_ack_init() -> {[], orddict:new(), []}. - -accumulate_ack(_SeqId, #msg_status { is_persistent = false, %% ASSERTIONS - msg_on_disk = false, - index_on_disk = false, - msg_id = MsgId }, - {PersistentSeqIdsAcc, MsgIdsByStore, AllMsgIds}) -> - {PersistentSeqIdsAcc, MsgIdsByStore, [MsgId | AllMsgIds]}; -accumulate_ack(SeqId, {IsPersistent, MsgId, _MsgProps}, - {PersistentSeqIdsAcc, MsgIdsByStore, AllMsgIds}) -> - {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), - rabbit_misc:orddict_cons(IsPersistent, MsgId, MsgIdsByStore), - [MsgId | AllMsgIds]}. - -find_persistent_count(LensByStore) -> - case orddict:find(true, LensByStore) of - error -> 0; - {ok, Len} -> Len - end. - -%%---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%%---------------------------------------------------------------------------- - -confirm_commit_index(State = #vqstate { index_state = IndexState }) -> - case needs_index_sync(State) of - true -> State #vqstate { - index_state = rabbit_queue_index:sync(IndexState) }; - false -> State - end. - -record_confirms(MsgIdSet, State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC, - confirmed = C }) -> - State #vqstate { msgs_on_disk = gb_sets:difference(MOD, MsgIdSet), - msg_indices_on_disk = gb_sets:difference(MIOD, MsgIdSet), - unconfirmed = gb_sets:difference(UC, MsgIdSet), - confirmed = gb_sets:union (C, MsgIdSet) }. - -needs_index_sync(#vqstate { msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - %% If UC is empty then by definition, MIOD and MOD are also empty - %% and there's nothing that can be pending a sync. - - %% If UC is not empty, then we want to find is_empty(UC - MIOD), - %% but the subtraction can be expensive. Thus instead, we test to - %% see if UC is a subset of MIOD. This can only be the case if - %% MIOD == UC, which would indicate that every message in UC is - %% also in MIOD and is thus _all_ pending on a msg_store sync, not - %% on a qi sync. Thus the negation of this is sufficient. Because - %% is_subset is short circuiting, this is more efficient than the - %% subtraction. - not (gb_sets:is_empty(UC) orelse gb_sets:is_subset(UC, MIOD)). - -blind_confirm(Callback, MsgIdSet) -> - Callback(?MODULE, - fun (?MODULE, State) -> record_confirms(MsgIdSet, State) end). - -msgs_written_to_disk(Callback, MsgIdSet, removed) -> - blind_confirm(Callback, MsgIdSet); -msgs_written_to_disk(Callback, MsgIdSet, written) -> - Callback(?MODULE, - fun (?MODULE, State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - Confirmed = gb_sets:intersection(UC, MsgIdSet), - record_confirms(gb_sets:intersection(MsgIdSet, MIOD), - State #vqstate { - msgs_on_disk = - gb_sets:union(MOD, Confirmed) }) - end). - -msg_indices_written_to_disk(Callback, MsgIdSet) -> - Callback(?MODULE, - fun (?MODULE, State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - Confirmed = gb_sets:intersection(UC, MsgIdSet), - record_confirms(gb_sets:intersection(MsgIdSet, MOD), - State #vqstate { - msg_indices_on_disk = - gb_sets:union(MIOD, Confirmed) }) - end). - -%%---------------------------------------------------------------------------- -%% Phase changes -%%---------------------------------------------------------------------------- - -%% Determine whether a reduction in memory use is necessary, and call -%% functions to perform the required phase changes. The function can -%% also be used to just do the former, by passing in dummy phase -%% change functions. -%% -%% The function does not report on any needed beta->delta conversions, -%% though the conversion function for that is called as necessary. The -%% reason is twofold. Firstly, this is safe because the conversion is -%% only ever necessary just after a transition to a -%% target_ram_count of zero or after an incremental alpha->beta -%% conversion. In the former case the conversion is performed straight -%% away (i.e. any betas present at the time are converted to deltas), -%% and in the latter case the need for a conversion is flagged up -%% anyway. Secondly, this is necessary because we do not have a -%% precise and cheap predicate for determining whether a beta->delta -%% conversion is necessary - due to the complexities of retaining up -%% one segment's worth of messages in q3 - and thus would risk -%% perpetually reporting the need for a conversion when no such -%% conversion is needed. That in turn could cause an infinite loop. -reduce_memory_use(_AlphaBetaFun, _BetaGammaFun, _BetaDeltaFun, _AckFun, - State = #vqstate {target_ram_count = infinity}) -> - {false, State}; -reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, - State = #vqstate { - ram_ack_index = RamAckIndex, - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount, - rates = #rates { avg_ingress = AvgIngress, - avg_egress = AvgEgress }, - ack_rates = #rates { avg_ingress = AvgAckIngress, - avg_egress = AvgAckEgress } - }) -> - - {Reduce, State1} = - case chunk_size(RamMsgCount + gb_trees:size(RamAckIndex), - TargetRamCount) of - 0 -> {false, State}; - %% Reduce memory of pending acks and alphas. The order is - %% determined based on which is growing faster. Whichever - %% comes second may very well get a quota of 0 if the - %% first manages to push out the max number of messages. - S1 -> {_, State2} = - lists:foldl(fun (ReduceFun, {QuotaN, StateN}) -> - ReduceFun(QuotaN, StateN) - end, - {S1, State}, - case (AvgAckIngress - AvgAckEgress) > - (AvgIngress - AvgEgress) of - true -> [AckFun, AlphaBetaFun]; - false -> [AlphaBetaFun, AckFun] - end), - {true, State2} - end, - - case State1 #vqstate.target_ram_count of - 0 -> {Reduce, BetaDeltaFun(State1)}; - _ -> case chunk_size(State1 #vqstate.ram_index_count, - permitted_ram_index_count(State1)) of - ?IO_BATCH_SIZE = S2 -> {true, BetaGammaFun(S2, State1)}; - _ -> {Reduce, State1} - end - end. - -limit_ram_acks(0, State) -> - {0, State}; -limit_ram_acks(Quota, State = #vqstate { pending_ack = PA, - ram_ack_index = RAI }) -> - case gb_trees:is_empty(RAI) of - true -> - {Quota, State}; - false -> - {SeqId, MsgId, RAI1} = gb_trees:take_largest(RAI), - MsgStatus = #msg_status { - msg_id = MsgId, %% ASSERTION - is_persistent = false, %% ASSERTION - msg_props = MsgProps } = dict:fetch(SeqId, PA), - {_, State1} = maybe_write_to_disk(true, false, MsgStatus, State), - PA1 = dict:store(SeqId, {false, MsgId, MsgProps}, PA), - limit_ram_acks(Quota - 1, - State1 #vqstate { pending_ack = PA1, - ram_ack_index = RAI1 }) - end. - - -reduce_memory_use(State) -> - {_, State1} = reduce_memory_use(fun push_alphas_to_betas/2, - fun limit_ram_index/2, - fun push_betas_to_deltas/1, - fun limit_ram_acks/2, - State), - State1. - -limit_ram_index(Quota, State = #vqstate { q2 = Q2, q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Q2a, {Quota1, IndexState1}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q2, {Quota, IndexState}), - %% TODO: we shouldn't be writing index entries for messages that - %% can never end up in delta due them residing in the only segment - %% held by q3. - {Q3a, {Quota2, IndexState2}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q3, {Quota1, IndexState1}), - State #vqstate { q2 = Q2a, q3 = Q3a, - index_state = IndexState2, - ram_index_count = RamIndexCount - (Quota - Quota2) }. - -limit_ram_index(_MapFoldFilterFun, Q, {0, IndexState}) -> - {Q, {0, IndexState}}; -limit_ram_index(MapFoldFilterFun, Q, {Quota, IndexState}) -> - MapFoldFilterFun( - fun erlang:'not'/1, - fun (MsgStatus, {0, _IndexStateN}) -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - stop; - (MsgStatus, {N, IndexStateN}) when N > 0 -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - {MsgStatus1, IndexStateN1} = - maybe_write_index_to_disk(true, MsgStatus, IndexStateN), - {true, m(MsgStatus1), {N-1, IndexStateN1}} - end, {Quota, IndexState}, Q). - -permitted_ram_index_count(#vqstate { len = 0 }) -> - infinity; -permitted_ram_index_count(#vqstate { len = Len, - q2 = Q2, - q3 = Q3, - delta = #delta { count = DeltaCount } }) -> - BetaLen = bpqueue:len(Q2) + bpqueue:len(Q3), - BetaLen - trunc(BetaLen * BetaLen / (Len - DeltaCount)). - -chunk_size(Current, Permitted) - when Permitted =:= infinity orelse Permitted >= Current -> - 0; -chunk_size(Current, Permitted) -> - lists:min([Current - Permitted, ?IO_BATCH_SIZE]). - -fetch_from_q3(State = #vqstate { - q1 = Q1, - q2 = Q2, - delta = #delta { count = DeltaCount }, - q3 = Q3, - q4 = Q4, - ram_index_count = RamIndexCount}) -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - {empty, State}; - {{value, IndexOnDisk, MsgStatus}, Q3a} -> - RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), - true = RamIndexCount1 >= 0, %% ASSERTION - State1 = State #vqstate { q3 = Q3a, - ram_index_count = RamIndexCount1 }, - State2 = - case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of - {true, true} -> - %% q3 is now empty, it wasn't before; delta is - %% still empty. So q2 must be empty, and we - %% know q4 is empty otherwise we wouldn't be - %% loading from q3. As such, we can just set - %% q4 to Q1. - true = bpqueue:is_empty(Q2), %% ASSERTION - true = queue:is_empty(Q4), %% ASSERTION - State1 #vqstate { q1 = queue:new(), - q4 = Q1 }; - {true, false} -> - maybe_deltas_to_betas(State1); - {false, _} -> - %% q3 still isn't empty, we've not touched - %% delta, so the invariants between q1, q2, - %% delta and q3 are maintained - State1 - end, - {loaded, {MsgStatus, State2}} - end. - -maybe_deltas_to_betas(State = #vqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> - State; -maybe_deltas_to_betas(State = #vqstate { - q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - transient_threshold = TransientThreshold }) -> - #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = DeltaSeqIdEnd } = Delta, - DeltaSeqId1 = - lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), - DeltaSeqIdEnd]), - {List, IndexState1} = - rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), - {Q3a, IndexState2} = - betas_from_index_entries(List, TransientThreshold, IndexState1), - State1 = State #vqstate { index_state = IndexState2 }, - case bpqueue:len(Q3a) of - 0 -> - %% we ignored every message in the segment due to it being - %% transient and below the threshold - maybe_deltas_to_betas( - State1 #vqstate { - delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); - Q3aLen -> - Q3b = bpqueue:join(Q3, Q3a), - case DeltaCount - Q3aLen of - 0 -> - %% delta is now empty, but it wasn't before, so - %% can now join q2 onto q3 - State1 #vqstate { q2 = bpqueue:new(), - delta = ?BLANK_DELTA, - q3 = bpqueue:join(Q3b, Q2) }; - N when N > 0 -> - Delta1 = #delta { start_seq_id = DeltaSeqId1, - count = N, - end_seq_id = DeltaSeqIdEnd }, - State1 #vqstate { delta = Delta1, - q3 = Q3b } - end - end. - -push_alphas_to_betas(Quota, State) -> - {Quota1, State1} = maybe_push_q1_to_betas(Quota, State), - {Quota2, State2} = maybe_push_q4_to_betas(Quota1, State1), - {Quota2, State2}. - -maybe_push_q1_to_betas(Quota, State = #vqstate { q1 = Q1 }) -> - maybe_push_alphas_to_betas( - fun queue:out/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q3 = Q3, delta = #delta { count = 0 } }) -> - State1 #vqstate { q1 = Q1a, - q3 = bpqueue:in(IndexOnDisk, MsgStatus, Q3) }; - (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q2 = Q2 }) -> - State1 #vqstate { q1 = Q1a, - q2 = bpqueue:in(IndexOnDisk, MsgStatus, Q2) } - end, Quota, Q1, State). - -maybe_push_q4_to_betas(Quota, State = #vqstate { q4 = Q4 }) -> - maybe_push_alphas_to_betas( - fun queue:out_r/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q4a, State1 = #vqstate { q3 = Q3 }) -> - State1 #vqstate { q3 = bpqueue:in_r(IndexOnDisk, MsgStatus, Q3), - q4 = Q4a } - end, Quota, Q4, State). - -maybe_push_alphas_to_betas(_Generator, _Consumer, Quota, _Q, - State = #vqstate { - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount }) - when Quota =:= 0 orelse - TargetRamCount =:= infinity orelse - TargetRamCount >= RamMsgCount -> - {Quota, State}; -maybe_push_alphas_to_betas(Generator, Consumer, Quota, Q, State) -> - case Generator(Q) of - {empty, _Q} -> - {Quota, State}; - {{value, MsgStatus}, Qa} -> - {MsgStatus1 = #msg_status { msg_on_disk = true, - index_on_disk = IndexOnDisk }, - State1 = #vqstate { ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }} = - maybe_write_to_disk(true, false, MsgStatus, State), - MsgStatus2 = m(MsgStatus1 #msg_status { msg = undefined }), - RamIndexCount1 = RamIndexCount + one_if(not IndexOnDisk), - State2 = State1 #vqstate { ram_msg_count = RamMsgCount - 1, - ram_index_count = RamIndexCount1 }, - maybe_push_alphas_to_betas(Generator, Consumer, Quota - 1, Qa, - Consumer(MsgStatus2, Qa, State2)) - end. - -push_betas_to_deltas(State = #vqstate { q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Delta2, Q2a, RamIndexCount2, IndexState2} = - push_betas_to_deltas(fun (Q2MinSeqId) -> Q2MinSeqId end, - fun bpqueue:out/1, Q2, - RamIndexCount, IndexState), - {Delta3, Q3a, RamIndexCount3, IndexState3} = - push_betas_to_deltas(fun rabbit_queue_index:next_segment_boundary/1, - fun bpqueue:out_r/1, Q3, - RamIndexCount2, IndexState2), - Delta4 = combine_deltas(Delta3, combine_deltas(Delta, Delta2)), - State #vqstate { q2 = Q2a, - delta = Delta4, - q3 = Q3a, - index_state = IndexState3, - ram_index_count = RamIndexCount3 }. - -push_betas_to_deltas(LimitFun, Generator, Q, RamIndexCount, IndexState) -> - case bpqueue:out(Q) of - {empty, _Q} -> - {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk1, #msg_status { seq_id = MinSeqId }}, _Qa} -> - {{value, _IndexOnDisk2, #msg_status { seq_id = MaxSeqId }}, _Qb} = - bpqueue:out_r(Q), - Limit = LimitFun(MinSeqId), - case MaxSeqId < Limit of - true -> {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - false -> {Len, Qc, RamIndexCount1, IndexState1} = - push_betas_to_deltas(Generator, Limit, Q, 0, - RamIndexCount, IndexState), - {#delta { start_seq_id = Limit, - count = Len, - end_seq_id = MaxSeqId + 1 }, - Qc, RamIndexCount1, IndexState1} - end - end. - -push_betas_to_deltas(Generator, Limit, Q, Count, RamIndexCount, IndexState) -> - case Generator(Q) of - {empty, _Q} -> - {Count, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk, #msg_status { seq_id = SeqId }}, _Qa} - when SeqId < Limit -> - {Count, Q, RamIndexCount, IndexState}; - {{value, IndexOnDisk, MsgStatus}, Qa} -> - {RamIndexCount1, IndexState1} = - case IndexOnDisk of - true -> {RamIndexCount, IndexState}; - false -> {#msg_status { index_on_disk = true }, - IndexState2} = - maybe_write_index_to_disk(true, MsgStatus, - IndexState), - {RamIndexCount - 1, IndexState2} - end, - push_betas_to_deltas( - Generator, Limit, Qa, Count + 1, RamIndexCount1, IndexState1) - end. - -%%---------------------------------------------------------------------------- -%% Upgrading -%%---------------------------------------------------------------------------- - -multiple_routing_keys() -> - transform_storage( - fun ({basic_message, ExchangeName, Routing_Key, Content, - MsgId, Persistent}) -> - {ok, {basic_message, ExchangeName, [Routing_Key], Content, - MsgId, Persistent}}; - (_) -> {error, corrupt_message} - end), - ok. - - -%% Assumes message store is not running -transform_storage(TransformFun) -> - transform_store(?PERSISTENT_MSG_STORE, TransformFun), - transform_store(?TRANSIENT_MSG_STORE, TransformFun). - -transform_store(Store, TransformFun) -> - rabbit_msg_store:force_recovery(rabbit_mnesia:dir(), Store), - rabbit_msg_store:transform_dir(rabbit_mnesia:dir(), Store, TransformFun). diff --git a/src/rabbit_version.erl b/src/rabbit_version.erl deleted file mode 100644 index 400abc10..00000000 --- a/src/rabbit_version.erl +++ /dev/null @@ -1,172 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_version). - --export([recorded/0, matches/2, desired/0, desired_for_scope/1, - record_desired/0, record_desired_for_scope/1, - upgrades_required/1]). - -%% ------------------------------------------------------------------- --ifdef(use_specs). - --export_type([scope/0, step/0]). - --type(scope() :: atom()). --type(scope_version() :: [atom()]). --type(step() :: {atom(), atom()}). - --type(version() :: [atom()]). - --spec(recorded/0 :: () -> rabbit_types:ok_or_error2(version(), any())). --spec(matches/2 :: ([A], [A]) -> boolean()). --spec(desired/0 :: () -> version()). --spec(desired_for_scope/1 :: (scope()) -> scope_version()). --spec(record_desired/0 :: () -> 'ok'). --spec(record_desired_for_scope/1 :: - (scope()) -> rabbit_types:ok_or_error(any())). --spec(upgrades_required/1 :: - (scope()) -> rabbit_types:ok_or_error2([step()], any())). - --endif. -%% ------------------------------------------------------------------- - --define(VERSION_FILENAME, "schema_version"). --define(SCOPES, [mnesia, local]). - -%% ------------------------------------------------------------------- - -recorded() -> case rabbit_misc:read_term_file(schema_filename()) of - {ok, [V]} -> {ok, V}; - {error, _} = Err -> Err - end. - -record(V) -> ok = rabbit_misc:write_term_file(schema_filename(), [V]). - -recorded_for_scope(Scope) -> - case recorded() of - {error, _} = Err -> - Err; - {ok, Version} -> - {ok, case lists:keysearch(Scope, 1, categorise_by_scope(Version)) of - false -> []; - {value, {Scope, SV1}} -> SV1 - end} - end. - -record_for_scope(Scope, ScopeVersion) -> - case recorded() of - {error, _} = Err -> - Err; - {ok, Version} -> - Version1 = lists:keystore(Scope, 1, categorise_by_scope(Version), - {Scope, ScopeVersion}), - ok = record([Name || {_Scope, Names} <- Version1, Name <- Names]) - end. - -%% ------------------------------------------------------------------- - -matches(VerA, VerB) -> - lists:usort(VerA) =:= lists:usort(VerB). - -%% ------------------------------------------------------------------- - -desired() -> [Name || Scope <- ?SCOPES, Name <- desired_for_scope(Scope)]. - -desired_for_scope(Scope) -> with_upgrade_graph(fun heads/1, Scope). - -record_desired() -> record(desired()). - -record_desired_for_scope(Scope) -> - record_for_scope(Scope, desired_for_scope(Scope)). - -upgrades_required(Scope) -> - case recorded_for_scope(Scope) of - {error, enoent} -> - {error, version_not_available}; - {ok, CurrentHeads} -> - with_upgrade_graph( - fun (G) -> - case unknown_heads(CurrentHeads, G) of - [] -> {ok, upgrades_to_apply(CurrentHeads, G)}; - Unknown -> {error, {future_upgrades_found, Unknown}} - end - end, Scope) - end. - -%% ------------------------------------------------------------------- - -with_upgrade_graph(Fun, Scope) -> - case rabbit_misc:build_acyclic_graph( - fun (Module, Steps) -> vertices(Module, Steps, Scope) end, - fun (Module, Steps) -> edges(Module, Steps, Scope) end, - rabbit_misc:all_module_attributes(rabbit_upgrade)) of - {ok, G} -> try - Fun(G) - after - true = digraph:delete(G) - end; - {error, {vertex, duplicate, StepName}} -> - throw({error, {duplicate_upgrade_step, StepName}}); - {error, {edge, {bad_vertex, StepName}, _From, _To}} -> - throw({error, {dependency_on_unknown_upgrade_step, StepName}}); - {error, {edge, {bad_edge, StepNames}, _From, _To}} -> - throw({error, {cycle_in_upgrade_steps, StepNames}}) - end. - -vertices(Module, Steps, Scope0) -> - [{StepName, {Module, StepName}} || {StepName, Scope1, _Reqs} <- Steps, - Scope0 == Scope1]. - -edges(_Module, Steps, Scope0) -> - [{Require, StepName} || {StepName, Scope1, Requires} <- Steps, - Require <- Requires, - Scope0 == Scope1]. -unknown_heads(Heads, G) -> - [H || H <- Heads, digraph:vertex(G, H) =:= false]. - -upgrades_to_apply(Heads, G) -> - %% Take all the vertices which can reach the known heads. That's - %% everything we've already applied. Subtract that from all - %% vertices: that's what we have to apply. - Unsorted = sets:to_list( - sets:subtract( - sets:from_list(digraph:vertices(G)), - sets:from_list(digraph_utils:reaching(Heads, G)))), - %% Form a subgraph from that list and find a topological ordering - %% so we can invoke them in order. - [element(2, digraph:vertex(G, StepName)) || - StepName <- digraph_utils:topsort(digraph_utils:subgraph(G, Unsorted))]. - -heads(G) -> - lists:sort([V || V <- digraph:vertices(G), digraph:out_degree(G, V) =:= 0]). - -%% ------------------------------------------------------------------- - -categorise_by_scope(Version) when is_list(Version) -> - Categorised = - [{Scope, Name} || {_Module, Attributes} <- - rabbit_misc:all_module_attributes(rabbit_upgrade), - {Name, Scope, _Requires} <- Attributes, - lists:member(Name, Version)], - orddict:to_list( - lists:foldl(fun ({Scope, Name}, CatVersion) -> - rabbit_misc:orddict_cons(Scope, Name, CatVersion) - end, orddict:new(), Categorised)). - -dir() -> rabbit_mnesia:dir(). - -schema_filename() -> filename:join(dir(), ?VERSION_FILENAME). diff --git a/src/rabbit_vhost.erl b/src/rabbit_vhost.erl deleted file mode 100644 index 08d6c99a..00000000 --- a/src/rabbit_vhost.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_vhost). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --export([add/1, delete/1, exists/1, list/0, with/2]). --export([info/1, info/2, info_all/0, info_all/1]). - --ifdef(use_specs). - --spec(add/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(delete/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(exists/1 :: (rabbit_types:vhost()) -> boolean()). --spec(list/0 :: () -> [rabbit_types:vhost()]). --spec(with/2 :: (rabbit_types:vhost(), rabbit_misc:thunk(A)) -> A). - --spec(info/1 :: (rabbit_types:vhost()) -> rabbit_types:infos()). --spec(info/2 :: (rabbit_types:vhost(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/0 :: () -> [rabbit_types:infos()]). --spec(info_all/1 :: (rabbit_types:info_keys()) -> [rabbit_types:infos()]). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [name, tracing]). - -add(VHostPath) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_vhost, VHostPath}) of - [] -> ok = mnesia:write(rabbit_vhost, - #vhost{virtual_host = VHostPath}, - write); - [_] -> mnesia:abort({vhost_already_exists, VHostPath}) - end - end, - fun (ok, true) -> - ok; - (ok, false) -> - [rabbit_exchange:declare( - rabbit_misc:r(VHostPath, exchange, Name), - Type, true, false, false, []) || - {Name,Type} <- - [{<<"">>, direct}, - {<<"amq.direct">>, direct}, - {<<"amq.topic">>, topic}, - {<<"amq.match">>, headers}, %% per 0-9-1 pdf - {<<"amq.headers">>, headers}, %% per 0-9-1 xml - {<<"amq.fanout">>, fanout}, - {<<"amq.rabbitmq.trace">>, topic}]], - ok - end), - rabbit_log:info("Added vhost ~p~n", [VHostPath]), - R. - -delete(VHostPath) -> - %% FIXME: We are forced to delete the queues and exchanges outside - %% the TX below. Queue deletion involves sending messages to the queue - %% process, which in turn results in further mnesia actions and - %% eventually the termination of that process. Exchange deletion causes - %% notifications which must be sent outside the TX - [{ok,_} = rabbit_amqqueue:delete(Q, false, false) || - Q <- rabbit_amqqueue:list(VHostPath)], - [ok = rabbit_exchange:delete(Name, false) || - #exchange{name = Name} <- rabbit_exchange:list(VHostPath)], - R = rabbit_misc:execute_mnesia_transaction( - with(VHostPath, fun () -> - ok = internal_delete(VHostPath) - end)), - rabbit_log:info("Deleted vhost ~p~n", [VHostPath]), - R. - -internal_delete(VHostPath) -> - lists:foreach( - fun (Info) -> - ok = rabbit_auth_backend_internal:clear_permissions( - proplists:get_value(user, Info), VHostPath) - end, - rabbit_auth_backend_internal:list_vhost_permissions(VHostPath)), - ok = mnesia:delete({rabbit_vhost, VHostPath}), - ok. - -exists(VHostPath) -> - mnesia:dirty_read({rabbit_vhost, VHostPath}) /= []. - -list() -> - mnesia:dirty_all_keys(rabbit_vhost). - -with(VHostPath, Thunk) -> - fun () -> - case mnesia:read({rabbit_vhost, VHostPath}) of - [] -> - mnesia:abort({no_such_vhost, VHostPath}); - [_V] -> - Thunk() - end - end. - -%%---------------------------------------------------------------------------- - -infos(Items, X) -> [{Item, i(Item, X)} || Item <- Items]. - -i(name, VHost) -> VHost; -i(tracing, VHost) -> rabbit_trace:tracing(VHost); -i(Item, _) -> throw({bad_argument, Item}). - -info(VHost) -> infos(?INFO_KEYS, VHost). -info(VHost, Items) -> infos(Items, VHost). - -info_all() -> info_all(?INFO_KEYS). -info_all(Items) -> [info(VHost, Items) || VHost <- list()]. diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl deleted file mode 100644 index ac3434d2..00000000 --- a/src/rabbit_writer.erl +++ /dev/null @@ -1,249 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_writer). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([start/5, start_link/5, mainloop/2, mainloop1/2]). --export([send_command/2, send_command/3, - send_command_sync/2, send_command_sync/3, - send_command_and_notify/4, send_command_and_notify/5]). --export([internal_send_command/4, internal_send_command/6]). - --record(wstate, {sock, channel, frame_max, protocol}). - --define(HIBERNATE_AFTER, 5000). - -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(start_link/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(send_command/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_sync/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command_sync/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_and_notify/4 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record()) - -> 'ok'). --spec(send_command_and_notify/5 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record(), - rabbit_types:content()) - -> 'ok'). --spec(internal_send_command/4 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:protocol()) - -> 'ok'). --spec(internal_send_command/6 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> 'ok'). - --endif. - -%%--------------------------------------------------------------------------- - -start(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -start_link(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn_link(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -mainloop(ReaderPid, State) -> - try - mainloop1(ReaderPid, State) - catch - exit:Error -> ReaderPid ! {channel_exit, #wstate.channel, Error} - end, - done. - -mainloop1(ReaderPid, State) -> - receive - Message -> ?MODULE:mainloop1(ReaderPid, handle_message(Message, State)) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, mainloop, [ReaderPid, State]) - end. - -handle_message({send_command, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - State; -handle_message({send_command, MethodRecord, Content}, State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord}}, State) -> - ok = internal_send_command_async(MethodRecord, State), - gen_server:reply(From, ok), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord, Content}}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - gen_server:reply(From, ok), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord, Content}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({inet_reply, _, ok}, State) -> - State; -handle_message({inet_reply, _, Status}, _State) -> - exit({writer, send_failed, Status}); -handle_message(Message, _State) -> - exit({writer, message_not_understood, Message}). - -%%--------------------------------------------------------------------------- - -send_command(W, MethodRecord) -> - W ! {send_command, MethodRecord}, - ok. - -send_command(W, MethodRecord, Content) -> - W ! {send_command, MethodRecord, Content}, - ok. - -send_command_sync(W, MethodRecord) -> - call(W, {send_command_sync, MethodRecord}). - -send_command_sync(W, MethodRecord, Content) -> - call(W, {send_command_sync, MethodRecord, Content}). - -send_command_and_notify(W, Q, ChPid, MethodRecord) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord}, - ok. - -send_command_and_notify(W, Q, ChPid, MethodRecord, Content) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord, Content}, - ok. - -%%--------------------------------------------------------------------------- - -call(Pid, Msg) -> - {ok, Res} = gen:call(Pid, '$gen_call', Msg, infinity), - Res. - -%%--------------------------------------------------------------------------- - -assemble_frame(Channel, MethodRecord, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, none), - rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol). - -assemble_frames(Channel, MethodRecord, Content, FrameMax, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, Content), - MethodName = rabbit_misc:method_record_type(MethodRecord), - true = Protocol:method_has_content(MethodName), % assertion - MethodFrame = rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol), - ContentFrames = rabbit_binary_generator:build_simple_content_frames( - Channel, Content, FrameMax, Protocol), - [MethodFrame | ContentFrames]. - -%% We optimise delivery of small messages. Content-bearing methods -%% require at least three frames. Small messages always fit into -%% that. We hand their frames to the Erlang network functions in one -%% go, which may lead to somewhat more efficient processing in the -%% runtime and a greater chance of coalescing into fewer TCP packets. -%% -%% By contrast, for larger messages, split across many frames, we want -%% to allow interleaving of frames on different channels. Hence we -%% hand them to the Erlang network functions one frame at a time. -send_frames(Fun, Sock, Frames) when length(Frames) =< 3 -> - Fun(Sock, Frames); -send_frames(Fun, Sock, Frames) -> - lists:foldl(fun (Frame, ok) -> Fun(Sock, Frame); - (_Frame, Other) -> Other - end, ok, Frames). - -tcp_send(Sock, Data) -> - rabbit_misc:throw_on_error(inet_error, - fun () -> rabbit_net:send(Sock, Data) end). - -internal_send_command(Sock, Channel, MethodRecord, Protocol) -> - ok = tcp_send(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command(Sock, Channel, MethodRecord, Content, FrameMax, - Protocol) -> - ok = send_frames(fun tcp_send/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -%% gen_tcp:send/2 does a selective receive of {inet_reply, Sock, -%% Status} to obtain the result. That is bad when it is called from -%% the writer since it requires scanning of the writers possibly quite -%% large message queue. -%% -%% So instead we lift the code from prim_inet:send/2, which is what -%% gen_tcp:send/2 calls, do the first half here and then just process -%% the result code in handle_message/2 as and when it arrives. -%% -%% This means we may end up happily sending data down a closed/broken -%% socket, but that's ok since a) data in the buffers will be lost in -%% any case (so qualitatively we are no worse off than if we used -%% gen_tcp:send/2), and b) we do detect the changed socket status -%% eventually, i.e. when we get round to handling the result code. -%% -%% Also note that the port has bounded buffers and port_command blocks -%% when these are full. So the fact that we process the result -%% asynchronously does not impact flow control. -internal_send_command_async(MethodRecord, - #wstate{sock = Sock, - channel = Channel, - protocol = Protocol}) -> - ok = port_cmd(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command_async(MethodRecord, Content, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}) -> - ok = send_frames(fun port_cmd/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -port_cmd(Sock, Data) -> - true = try rabbit_net:port_command(Sock, Data) - catch error:Error -> exit({writer, send_failed, Error}) - end, - ok. diff --git a/src/supervisor2.erl b/src/supervisor2.erl deleted file mode 100644 index ec1ee9cd..00000000 --- a/src/supervisor2.erl +++ /dev/null @@ -1,1018 +0,0 @@ -%% This file is a copy of supervisor.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is supervisor2 -%% -%% 2) there is a new strategy called -%% simple_one_for_one_terminate. This is exactly the same as for -%% simple_one_for_one, except that children *are* explicitly -%% terminated as per the shutdown component of the child_spec. -%% -%% 3) child specifications can contain, as the restart type, a tuple -%% {permanent, Delay} | {transient, Delay} where Delay >= 0. The -%% delay, in seconds, indicates what should happen if a child, upon -%% being restarted, exceeds the MaxT and MaxR parameters. Thus, if -%% a child exits, it is restarted as normal. If it exits -%% sufficiently quickly and often to exceed the boundaries set by -%% the MaxT and MaxR parameters, and a Delay is specified, then -%% rather than stopping the supervisor, the supervisor instead -%% continues and tries to start up the child again, Delay seconds -%% later. -%% -%% Note that you can never restart more frequently than the MaxT -%% and MaxR parameters allow: i.e. you must wait until *both* the -%% Delay has passed *and* the MaxT and MaxR parameters allow the -%% child to be restarted. -%% -%% Also note that the Delay is a *minimum*. There is no guarantee -%% that the child will be restarted within that time, especially if -%% other processes are dying and being restarted at the same time - -%% essentially we have to wait for the delay to have passed and for -%% the MaxT and MaxR parameters to permit the child to be -%% restarted. This may require waiting for longer than Delay. -%% -%% 4) Added an 'intrinsic' restart type. Like the transient type, this -%% type means the child should only be restarted if the child exits -%% abnormally. Unlike the transient type, if the child exits -%% normally, the supervisor itself also exits normally. If the -%% child is a supervisor and it exits normally (i.e. with reason of -%% 'shutdown') then the child's parent also exits normally. -%% -%% 5) normal, and {shutdown, _} exit reasons are all treated the same -%% (i.e. are regarded as normal exits) -%% -%% All modifications are (C) 2010-2011 VMware, Inc. -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(supervisor2). - --behaviour(gen_server). - -%% External exports --export([start_link/2,start_link/3, - start_child/2, restart_child/2, - delete_child/2, terminate_child/2, - which_children/1, find_child/2, - check_childspecs/1]). - --export([behaviour_info/1]). - -%% Internal exports --export([init/1, handle_call/3, handle_info/2, terminate/2, code_change/3]). --export([handle_cast/2]). --export([delayed_restart/2]). - --define(DICT, dict). - --record(state, {name, - strategy, - children = [], - dynamics = ?DICT:new(), - intensity, - period, - restarts = [], - module, - args}). - --record(child, {pid = undefined, % pid is undefined when child is not running - name, - mfa, - restart_type, - shutdown, - child_type, - modules = []}). - --define(is_simple(State), State#state.strategy =:= simple_one_for_one orelse - State#state.strategy =:= simple_one_for_one_terminate). --define(is_terminate_simple(State), - State#state.strategy =:= simple_one_for_one_terminate). - -behaviour_info(callbacks) -> - [{init,1}]; -behaviour_info(_Other) -> - undefined. - -%%% --------------------------------------------------- -%%% This is a general process supervisor built upon gen_server.erl. -%%% Servers/processes should/could also be built using gen_server.erl. -%%% SupName = {local, atom()} | {global, atom()}. -%%% --------------------------------------------------- -start_link(Mod, Args) -> - gen_server:start_link(?MODULE, {self, Mod, Args}, []). - -start_link(SupName, Mod, Args) -> - gen_server:start_link(SupName, ?MODULE, {SupName, Mod, Args}, []). - -%%% --------------------------------------------------- -%%% Interface functions. -%%% --------------------------------------------------- -start_child(Supervisor, ChildSpec) -> - call(Supervisor, {start_child, ChildSpec}). - -restart_child(Supervisor, Name) -> - call(Supervisor, {restart_child, Name}). - -delete_child(Supervisor, Name) -> - call(Supervisor, {delete_child, Name}). - -%%----------------------------------------------------------------- -%% Func: terminate_child/2 -%% Returns: ok | {error, Reason} -%% Note that the child is *always* terminated in some -%% way (maybe killed). -%%----------------------------------------------------------------- -terminate_child(Supervisor, Name) -> - call(Supervisor, {terminate_child, Name}). - -which_children(Supervisor) -> - call(Supervisor, which_children). - -find_child(Supervisor, Name) -> - [Pid || {Name1, Pid, _Type, _Modules} <- which_children(Supervisor), - Name1 =:= Name]. - -call(Supervisor, Req) -> - gen_server:call(Supervisor, Req, infinity). - -check_childspecs(ChildSpecs) when is_list(ChildSpecs) -> - case check_startspec(ChildSpecs) of - {ok, _} -> ok; - Error -> {error, Error} - end; -check_childspecs(X) -> {error, {badarg, X}}. - -delayed_restart(Supervisor, RestartDetails) -> - gen_server:cast(Supervisor, {delayed_restart, RestartDetails}). - -%%% --------------------------------------------------- -%%% -%%% Initialize the supervisor. -%%% -%%% --------------------------------------------------- -init({SupName, Mod, Args}) -> - process_flag(trap_exit, true), - case Mod:init(Args) of - {ok, {SupFlags, StartSpec}} -> - case init_state(SupName, SupFlags, Mod, Args) of - {ok, State} when ?is_simple(State) -> - init_dynamic(State, StartSpec); - {ok, State} -> - init_children(State, StartSpec); - Error -> - {stop, {supervisor_data, Error}} - end; - ignore -> - ignore; - Error -> - {stop, {bad_return, {Mod, init, Error}}} - end. - -init_children(State, StartSpec) -> - SupName = State#state.name, - case check_startspec(StartSpec) of - {ok, Children} -> - case start_children(Children, SupName) of - {ok, NChildren} -> - {ok, State#state{children = NChildren}}; - {error, NChildren} -> - terminate_children(NChildren, SupName), - {stop, shutdown} - end; - Error -> - {stop, {start_spec, Error}} - end. - -init_dynamic(State, [StartSpec]) -> - case check_startspec([StartSpec]) of - {ok, Children} -> - {ok, State#state{children = Children}}; - Error -> - {stop, {start_spec, Error}} - end; -init_dynamic(_State, StartSpec) -> - {stop, {bad_start_spec, StartSpec}}. - -%%----------------------------------------------------------------- -%% Func: start_children/2 -%% Args: Children = [#child] in start order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Purpose: Start all children. The new list contains #child's -%% with pids. -%% Returns: {ok, NChildren} | {error, NChildren} -%% NChildren = [#child] in termination order (reversed -%% start order) -%%----------------------------------------------------------------- -start_children(Children, SupName) -> start_children(Children, [], SupName). - -start_children([Child|Chs], NChildren, SupName) -> - case do_start_child(SupName, Child) of - {ok, Pid} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {ok, Pid, _Extra} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {error, Reason} -> - report_error(start_error, Reason, Child, SupName), - {error, lists:reverse(Chs) ++ [Child | NChildren]} - end; -start_children([], NChildren, _SupName) -> - {ok, NChildren}. - -do_start_child(SupName, Child) -> - #child{mfa = {M, F, A}} = Child, - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, What} -> {error, What}; - What -> {error, What} - end. - -do_start_child_i(M, F, A) -> - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, Error} -> - {error, Error}; - What -> - {error, What} - end. - - -%%% --------------------------------------------------- -%%% -%%% Callback functions. -%%% -%%% --------------------------------------------------- -handle_call({start_child, EArgs}, _From, State) when ?is_simple(State) -> - #child{mfa = {M, F, A}} = hd(State#state.children), - Args = A ++ EArgs, - case do_start_child_i(M, F, Args) of - {ok, Pid} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid, Extra}, NState}; - What -> - {reply, What, State} - end; - -%%% The requests terminate_child, delete_child and restart_child are -%%% invalid for simple_one_for_one and simple_one_for_one_terminate -%%% supervisors. -handle_call({_Req, _Data}, _From, State) when ?is_simple(State) -> - {reply, {error, State#state.strategy}, State}; - -handle_call({start_child, ChildSpec}, _From, State) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - {Resp, NState} = handle_start_child(Child, State), - {reply, Resp, NState}; - What -> - {reply, {error, What}, State} - end; - -handle_call({restart_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid, Extra}, NState}; - Error -> - {reply, Error, State} - end; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({delete_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - NState = remove_child(Child, State), - {reply, ok, NState}; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({terminate_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} -> - NChild = do_terminate(Child, State#state.name), - {reply, ok, replace_child(NChild, State)}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call(which_children, _From, State) when ?is_simple(State) -> - [#child{child_type = CT, modules = Mods}] = State#state.children, - Reply = lists:map(fun ({Pid, _}) -> {undefined, Pid, CT, Mods} end, - ?DICT:to_list(State#state.dynamics)), - {reply, Reply, State}; - -handle_call(which_children, _From, State) -> - Resp = - lists:map(fun (#child{pid = Pid, name = Name, - child_type = ChildType, modules = Mods}) -> - {Name, Pid, ChildType, Mods} - end, - State#state.children), - {reply, Resp, State}. - - -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) - when ?is_simple(State) -> - {ok, NState} = do_restart(RestartType, Reason, Child, State), - {noreply, NState}; -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) -> - case get_child(Child#child.name, State) of - {value, Child1} -> - {ok, NState} = do_restart(RestartType, Reason, Child1, State), - {noreply, NState}; - _ -> - {noreply, State} - end; - -%%% Hopefully cause a function-clause as there is no API function -%%% that utilizes cast. -handle_cast(null, State) -> - error_logger:error_msg("ERROR: Supervisor received cast-message 'null'~n", - []), - - {noreply, State}. - -%% -%% Take care of terminated children. -%% -handle_info({'EXIT', Pid, Reason}, State) -> - case restart_child(Pid, Reason, State) of - {ok, State1} -> - {noreply, State1}; - {shutdown, State1} -> - {stop, shutdown, State1} - end; - -handle_info(Msg, State) -> - error_logger:error_msg("Supervisor received unexpected message: ~p~n", - [Msg]), - {noreply, State}. -%% -%% Terminate this server. -%% -terminate(_Reason, State) when ?is_terminate_simple(State) -> - terminate_simple_children( - hd(State#state.children), State#state.dynamics, State#state.name), - ok; -terminate(_Reason, State) -> - terminate_children(State#state.children, State#state.name), - ok. - -%% -%% Change code for the supervisor. -%% Call the new call-back module and fetch the new start specification. -%% Combine the new spec. with the old. If the new start spec. is -%% not valid the code change will not succeed. -%% Use the old Args as argument to Module:init/1. -%% NOTE: This requires that the init function of the call-back module -%% does not have any side effects. -%% -code_change(_, State, _) -> - case (State#state.module):init(State#state.args) of - {ok, {SupFlags, StartSpec}} -> - case catch check_flags(SupFlags) of - ok -> - {Strategy, MaxIntensity, Period} = SupFlags, - update_childspec(State#state{strategy = Strategy, - intensity = MaxIntensity, - period = Period}, - StartSpec); - Error -> - {error, Error} - end; - ignore -> - {ok, State}; - Error -> - Error - end. - -check_flags({Strategy, MaxIntensity, Period}) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - ok; -check_flags(What) -> - {bad_flags, What}. - -update_childspec(State, StartSpec) when ?is_simple(State) -> - case check_startspec(StartSpec) of - {ok, [Child]} -> - {ok, State#state{children = [Child]}}; - Error -> - {error, Error} - end; - -update_childspec(State, StartSpec) -> - case check_startspec(StartSpec) of - {ok, Children} -> - OldC = State#state.children, % In reverse start order ! - NewC = update_childspec1(OldC, Children, []), - {ok, State#state{children = NewC}}; - Error -> - {error, Error} - end. - -update_childspec1([Child|OldC], Children, KeepOld) -> - case update_chsp(Child, Children) of - {ok,NewChildren} -> - update_childspec1(OldC, NewChildren, KeepOld); - false -> - update_childspec1(OldC, Children, [Child|KeepOld]) - end; -update_childspec1([], Children, KeepOld) -> - % Return them in (keeped) reverse start order. - lists:reverse(Children ++ KeepOld). - -update_chsp(OldCh, Children) -> - case lists:map(fun (Ch) when OldCh#child.name =:= Ch#child.name -> - Ch#child{pid = OldCh#child.pid}; - (Ch) -> - Ch - end, - Children) of - Children -> - false; % OldCh not found in new spec. - NewC -> - {ok, NewC} - end. - -%%% --------------------------------------------------- -%%% Start a new child. -%%% --------------------------------------------------- - -handle_start_child(Child, State) -> - case get_child(Child#child.name, State) of - false -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - Children = State#state.children, - {{ok, Pid}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {ok, Pid, Extra} -> - Children = State#state.children, - {{ok, Pid, Extra}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {error, What} -> - {{error, {What, Child}}, State} - end; - {value, OldChild} when OldChild#child.pid =/= undefined -> - {{error, {already_started, OldChild#child.pid}}, State}; - {value, _OldChild} -> - {{error, already_present}, State} - end. - -%%% --------------------------------------------------- -%%% Restart. A process has terminated. -%%% Returns: {ok, #state} | {shutdown, #state} -%%% --------------------------------------------------- - -restart_child(Pid, Reason, State) when ?is_simple(State) -> - case ?DICT:find(Pid, State#state.dynamics) of - {ok, Args} -> - [Child] = State#state.children, - RestartType = Child#child.restart_type, - {M, F, _} = Child#child.mfa, - NChild = Child#child{pid = Pid, mfa = {M, F, Args}}, - do_restart(RestartType, Reason, NChild, State); - error -> - {ok, State} - end; -restart_child(Pid, Reason, State) -> - Children = State#state.children, - case lists:keysearch(Pid, #child.pid, Children) of - {value, Child} -> - RestartType = Child#child.restart_type, - do_restart(RestartType, Reason, Child, State); - _ -> - {ok, State} - end. - -do_restart({RestartType, Delay}, Reason, Child, State) -> - case restart1(Child, State) of - {ok, NState} -> - {ok, NState}; - {terminate, NState} -> - {ok, _TRef} = timer:apply_after( - trunc(Delay*1000), ?MODULE, delayed_restart, - [self(), {{RestartType, Delay}, Reason, Child}]), - {ok, state_del_child(Child, NState)} - end; -do_restart(permanent, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(Type, normal, Child, State) -> - del_child_and_maybe_shutdown(Type, Child, State); -do_restart(Type, {shutdown, _}, Child, State) -> - del_child_and_maybe_shutdown(Type, Child, State); -do_restart(Type, shutdown, Child = #child{child_type = supervisor}, State) -> - del_child_and_maybe_shutdown(Type, Child, State); -do_restart(Type, Reason, Child, State) when Type =:= transient orelse - Type =:= intrinsic -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(temporary, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - NState = state_del_child(Child, State), - {ok, NState}. - -del_child_and_maybe_shutdown(intrinsic, Child, State) -> - {shutdown, state_del_child(Child, State)}; -del_child_and_maybe_shutdown(_, Child, State) -> - {ok, state_del_child(Child, State)}. - -restart(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart/2); - {terminate, NState} -> - report_error(shutdown, reached_max_restart_intensity, - Child, State#state.name), - {shutdown, state_del_child(Child, NState)} - end. - -restart1(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart1/2); - {terminate, _NState} -> - %% we've reached the max restart intensity, but the - %% add_restart will have added to the restarts - %% field. Given we don't want to die here, we need to go - %% back to the old restarts field otherwise we'll never - %% attempt to restart later. - {terminate, State} - end. - -restart(Strategy, Child, State, Restart) - when Strategy =:= simple_one_for_one orelse - Strategy =:= simple_one_for_one_terminate -> - #child{mfa = {M, F, A}} = Child, - Dynamics = ?DICT:erase(Child#child.pid, State#state.dynamics), - case do_start_child_i(M, F, A) of - {ok, Pid} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {ok, Pid, _Extra} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {error, Error} -> - report_error(start_error, Error, Child, State#state.name), - Restart(Child, State) - end; -restart(one_for_one, Child, State, Restart) -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {ok, Pid, _Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {error, Reason} -> - report_error(start_error, Reason, Child, State#state.name), - Restart(Child, State) - end; -restart(rest_for_one, Child, State, Restart) -> - {ChAfter, ChBefore} = split_child(Child#child.pid, State#state.children), - ChAfter2 = terminate_children(ChAfter, State#state.name), - case start_children(ChAfter2, State#state.name) of - {ok, ChAfter3} -> - {ok, State#state{children = ChAfter3 ++ ChBefore}}; - {error, ChAfter3} -> - Restart(Child, State#state{children = ChAfter3 ++ ChBefore}) - end; -restart(one_for_all, Child, State, Restart) -> - Children1 = del_child(Child#child.pid, State#state.children), - Children2 = terminate_children(Children1, State#state.name), - case start_children(Children2, State#state.name) of - {ok, NChs} -> - {ok, State#state{children = NChs}}; - {error, NChs} -> - Restart(Child, State#state{children = NChs}) - end. - -%%----------------------------------------------------------------- -%% Func: terminate_children/2 -%% Args: Children = [#child] in termination order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Returns: NChildren = [#child] in -%% startup order (reversed termination order) -%%----------------------------------------------------------------- -terminate_children(Children, SupName) -> - terminate_children(Children, SupName, []). - -terminate_children([Child | Children], SupName, Res) -> - NChild = do_terminate(Child, SupName), - terminate_children(Children, SupName, [NChild | Res]); -terminate_children([], _SupName, Res) -> - Res. - -terminate_simple_children(Child, Dynamics, SupName) -> - dict:fold(fun (Pid, _Args, _Any) -> - do_terminate(Child#child{pid = Pid}, SupName) - end, ok, Dynamics), - ok. - -do_terminate(Child, SupName) when Child#child.pid =/= undefined -> - ReportError = fun (Reason) -> - report_error(shutdown_error, Reason, Child, SupName) - end, - case shutdown(Child#child.pid, Child#child.shutdown) of - ok -> - ok; - {error, normal} -> - case Child#child.restart_type of - permanent -> ReportError(normal); - {permanent, _Delay} -> ReportError(normal); - _ -> ok - end; - {error, OtherReason} -> - ReportError(OtherReason) - end, - Child#child{pid = undefined}; -do_terminate(Child, _SupName) -> - Child. - -%%----------------------------------------------------------------- -%% Shutdowns a child. We must check the EXIT value -%% of the child, because it might have died with another reason than -%% the wanted. In that case we want to report the error. We put a -%% monitor on the child an check for the 'DOWN' message instead of -%% checking for the 'EXIT' message, because if we check the 'EXIT' -%% message a "naughty" child, who does unlink(Sup), could hang the -%% supervisor. -%% Returns: ok | {error, OtherReason} (this should be reported) -%%----------------------------------------------------------------- -shutdown(Pid, brutal_kill) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, kill), - receive - {'DOWN', _MRef, process, Pid, killed} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end; - {error, Reason} -> - {error, Reason} - end; - -shutdown(Pid, Time) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, shutdown), %% Try to shutdown gracefully - receive - {'DOWN', _MRef, process, Pid, shutdown} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - after Time -> - exit(Pid, kill), %% Force termination. - receive - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end - end; - {error, Reason} -> - {error, Reason} - end. - -%% Help function to shutdown/2 switches from link to monitor approach -monitor_child(Pid) -> - - %% Do the monitor operation first so that if the child dies - %% before the monitoring is done causing a 'DOWN'-message with - %% reason noproc, we will get the real reason in the 'EXIT'-message - %% unless a naughty child has already done unlink... - erlang:monitor(process, Pid), - unlink(Pid), - - receive - %% If the child dies before the unlik we must empty - %% the mail-box of the 'EXIT'-message and the 'DOWN'-message. - {'EXIT', Pid, Reason} -> - receive - {'DOWN', _, process, Pid, _} -> - {error, Reason} - end - after 0 -> - %% If a naughty child did unlink and the child dies before - %% monitor the result will be that shutdown/2 receives a - %% 'DOWN'-message with reason noproc. - %% If the child should die after the unlink there - %% will be a 'DOWN'-message with a correct reason - %% that will be handled in shutdown/2. - ok - end. - - -%%----------------------------------------------------------------- -%% Child/State manipulating functions. -%%----------------------------------------------------------------- -state_del_child(#child{pid = Pid}, State) when ?is_simple(State) -> - NDynamics = ?DICT:erase(Pid, State#state.dynamics), - State#state{dynamics = NDynamics}; -state_del_child(Child, State) -> - NChildren = del_child(Child#child.name, State#state.children), - State#state{children = NChildren}. - -del_child(Name, [Ch|Chs]) when Ch#child.name =:= Name -> - [Ch#child{pid = undefined} | Chs]; -del_child(Pid, [Ch|Chs]) when Ch#child.pid =:= Pid -> - [Ch#child{pid = undefined} | Chs]; -del_child(Name, [Ch|Chs]) -> - [Ch|del_child(Name, Chs)]; -del_child(_, []) -> - []. - -%% Chs = [S4, S3, Ch, S1, S0] -%% Ret: {[S4, S3, Ch], [S1, S0]} -split_child(Name, Chs) -> - split_child(Name, Chs, []). - -split_child(Name, [Ch|Chs], After) when Ch#child.name =:= Name -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Pid, [Ch|Chs], After) when Ch#child.pid =:= Pid -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Name, [Ch|Chs], After) -> - split_child(Name, Chs, [Ch | After]); -split_child(_, [], After) -> - {lists:reverse(After), []}. - -get_child(Name, State) -> - lists:keysearch(Name, #child.name, State#state.children). -replace_child(Child, State) -> - Chs = do_replace_child(Child, State#state.children), - State#state{children = Chs}. - -do_replace_child(Child, [Ch|Chs]) when Ch#child.name =:= Child#child.name -> - [Child | Chs]; -do_replace_child(Child, [Ch|Chs]) -> - [Ch|do_replace_child(Child, Chs)]. - -remove_child(Child, State) -> - Chs = lists:keydelete(Child#child.name, #child.name, State#state.children), - State#state{children = Chs}. - -%%----------------------------------------------------------------- -%% Func: init_state/4 -%% Args: SupName = {local, atom()} | {global, atom()} | self -%% Type = {Strategy, MaxIntensity, Period} -%% Strategy = one_for_one | one_for_all | simple_one_for_one | -%% rest_for_one -%% MaxIntensity = integer() -%% Period = integer() -%% Mod :== atom() -%% Arsg :== term() -%% Purpose: Check that Type is of correct type (!) -%% Returns: {ok, #state} | Error -%%----------------------------------------------------------------- -init_state(SupName, Type, Mod, Args) -> - case catch init_state1(SupName, Type, Mod, Args) of - {ok, State} -> - {ok, State}; - Error -> - Error - end. - -init_state1(SupName, {Strategy, MaxIntensity, Period}, Mod, Args) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - {ok, #state{name = supname(SupName,Mod), - strategy = Strategy, - intensity = MaxIntensity, - period = Period, - module = Mod, - args = Args}}; -init_state1(_SupName, Type, _, _) -> - {invalid_type, Type}. - -validStrategy(simple_one_for_one_terminate) -> true; -validStrategy(simple_one_for_one) -> true; -validStrategy(one_for_one) -> true; -validStrategy(one_for_all) -> true; -validStrategy(rest_for_one) -> true; -validStrategy(What) -> throw({invalid_strategy, What}). - -validIntensity(Max) when is_integer(Max), - Max >= 0 -> true; -validIntensity(What) -> throw({invalid_intensity, What}). - -validPeriod(Period) when is_integer(Period), - Period > 0 -> true; -validPeriod(What) -> throw({invalid_period, What}). - -supname(self,Mod) -> {self(),Mod}; -supname(N,_) -> N. - -%%% ------------------------------------------------------ -%%% Check that the children start specification is valid. -%%% Shall be a six (6) tuple -%%% {Name, Func, RestartType, Shutdown, ChildType, Modules} -%%% where Name is an atom -%%% Func is {Mod, Fun, Args} == {atom, atom, list} -%%% RestartType is permanent | temporary | transient | -%%% intrinsic | {permanent, Delay} | -%%% {transient, Delay} where Delay >= 0 -%%% Shutdown = integer() | infinity | brutal_kill -%%% ChildType = supervisor | worker -%%% Modules = [atom()] | dynamic -%%% Returns: {ok, [#child]} | Error -%%% ------------------------------------------------------ - -check_startspec(Children) -> check_startspec(Children, []). - -check_startspec([ChildSpec|T], Res) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - case lists:keymember(Child#child.name, #child.name, Res) of - true -> {duplicate_child_name, Child#child.name}; - false -> check_startspec(T, [Child | Res]) - end; - Error -> Error - end; -check_startspec([], Res) -> - {ok, lists:reverse(Res)}. - -check_childspec({Name, Func, RestartType, Shutdown, ChildType, Mods}) -> - catch check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods); -check_childspec(X) -> {invalid_child_spec, X}. - -check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods) -> - validName(Name), - validFunc(Func), - validRestartType(RestartType), - validChildType(ChildType), - validShutdown(Shutdown, ChildType), - validMods(Mods), - {ok, #child{name = Name, mfa = Func, restart_type = RestartType, - shutdown = Shutdown, child_type = ChildType, modules = Mods}}. - -validChildType(supervisor) -> true; -validChildType(worker) -> true; -validChildType(What) -> throw({invalid_child_type, What}). - -validName(_Name) -> true. - -validFunc({M, F, A}) when is_atom(M), - is_atom(F), - is_list(A) -> true; -validFunc(Func) -> throw({invalid_mfa, Func}). - -validRestartType(permanent) -> true; -validRestartType(temporary) -> true; -validRestartType(transient) -> true; -validRestartType(intrinsic) -> true; -validRestartType({permanent, Delay}) -> validDelay(Delay); -validRestartType({transient, Delay}) -> validDelay(Delay); -validRestartType(RestartType) -> throw({invalid_restart_type, - RestartType}). - -validDelay(Delay) when is_number(Delay), - Delay >= 0 -> true; -validDelay(What) -> throw({invalid_delay, What}). - -validShutdown(Shutdown, _) - when is_integer(Shutdown), Shutdown > 0 -> true; -validShutdown(infinity, supervisor) -> true; -validShutdown(brutal_kill, _) -> true; -validShutdown(Shutdown, _) -> throw({invalid_shutdown, Shutdown}). - -validMods(dynamic) -> true; -validMods(Mods) when is_list(Mods) -> - lists:foreach(fun (Mod) -> - if - is_atom(Mod) -> ok; - true -> throw({invalid_module, Mod}) - end - end, - Mods); -validMods(Mods) -> throw({invalid_modules, Mods}). - -%%% ------------------------------------------------------ -%%% Add a new restart and calculate if the max restart -%%% intensity has been reached (in that case the supervisor -%%% shall terminate). -%%% All restarts accured inside the period amount of seconds -%%% are kept in the #state.restarts list. -%%% Returns: {ok, State'} | {terminate, State'} -%%% ------------------------------------------------------ - -add_restart(State) -> - I = State#state.intensity, - P = State#state.period, - R = State#state.restarts, - Now = erlang:now(), - R1 = add_restart([Now|R], Now, P), - State1 = State#state{restarts = R1}, - case length(R1) of - CurI when CurI =< I -> - {ok, State1}; - _ -> - {terminate, State1} - end. - -add_restart([R|Restarts], Now, Period) -> - case inPeriod(R, Now, Period) of - true -> - [R|add_restart(Restarts, Now, Period)]; - _ -> - [] - end; -add_restart([], _, _) -> - []. - -inPeriod(Time, Now, Period) -> - case difference(Time, Now) of - T when T > Period -> - false; - _ -> - true - end. - -%% -%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored) -%% Calculate the time elapsed in seconds between two timestamps. -%% If MegaSecs is equal just subtract Secs. -%% Else calculate the Mega difference and add the Secs difference, -%% note that Secs difference can be negative, e.g. -%% {827, 999999, 676} diff {828, 1, 653753} == > 2 secs. -%% -difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM -> - ((CurM - TimeM) * 1000000) + (CurS - TimeS); -difference({_, TimeS, _}, {_, CurS, _}) -> - CurS - TimeS. - -%%% ------------------------------------------------------ -%%% Error and progress reporting. -%%% ------------------------------------------------------ - -report_error(Error, Reason, Child, SupName) -> - ErrorMsg = [{supervisor, SupName}, - {errorContext, Error}, - {reason, Reason}, - {offender, extract_child(Child)}], - error_logger:error_report(supervisor_report, ErrorMsg). - - -extract_child(Child) -> - [{pid, Child#child.pid}, - {name, Child#child.name}, - {mfa, Child#child.mfa}, - {restart_type, Child#child.restart_type}, - {shutdown, Child#child.shutdown}, - {child_type, Child#child.child_type}]. - -report_progress(Child, SupName) -> - Progress = [{supervisor, SupName}, - {started, extract_child(Child)}], - error_logger:info_report(progress, Progress). diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl deleted file mode 100644 index 0d50683d..00000000 --- a/src/tcp_acceptor.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor). - --behaviour(gen_server). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {callback, sock, ref}). - -%%-------------------------------------------------------------------- - -start_link(Callback, LSock) -> - gen_server:start_link(?MODULE, {Callback, LSock}, []). - -%%-------------------------------------------------------------------- - -init({Callback, LSock}) -> - gen_server:cast(self(), accept), - {ok, #state{callback=Callback, sock=LSock}}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(accept, State) -> - ok = file_handle_cache:obtain(), - accept(State); - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({inet_async, LSock, Ref, {ok, Sock}}, - State = #state{callback={M,F,A}, sock=LSock, ref=Ref}) -> - - %% patch up the socket so it looks like one we got from - %% gen_tcp:accept/1 - {ok, Mod} = inet_db:lookup_socket(LSock), - inet_db:register_socket(Sock, Mod), - - try - %% report - {Address, Port} = inet_op(fun () -> inet:sockname(LSock) end), - {PeerAddress, PeerPort} = inet_op(fun () -> inet:peername(Sock) end), - error_logger:info_msg("accepted TCP connection on ~s:~p from ~s:~p~n", - [rabbit_misc:ntoab(Address), Port, - rabbit_misc:ntoab(PeerAddress), PeerPort]), - %% In the event that somebody floods us with connections we can spew - %% the above message at error_logger faster than it can keep up. - %% So error_logger's mailbox grows unbounded until we eat all the - %% memory available and crash. So here's a meaningless synchronous call - %% to the underlying gen_event mechanism - when it returns the mailbox - %% is drained. - gen_event:which_handlers(error_logger), - %% handle - file_handle_cache:transfer(apply(M, F, A ++ [Sock])), - ok = file_handle_cache:obtain() - catch {inet_error, Reason} -> - gen_tcp:close(Sock), - error_logger:error_msg("unable to accept TCP connection: ~p~n", - [Reason]) - end, - - %% accept more - accept(State); - -handle_info({inet_async, LSock, Ref, {error, closed}}, - State=#state{sock=LSock, ref=Ref}) -> - %% It would be wrong to attempt to restart the acceptor when we - %% know this will fail. - {stop, normal, State}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -accept(State = #state{sock=LSock}) -> - case prim_inet:async_accept(LSock, -1) of - {ok, Ref} -> {noreply, State#state{ref=Ref}}; - Error -> {stop, {cannot_accept, Error}, State} - end. diff --git a/src/tcp_acceptor_sup.erl b/src/tcp_acceptor_sup.erl deleted file mode 100644 index bf0eacd1..00000000 --- a/src/tcp_acceptor_sup.erl +++ /dev/null @@ -1,31 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - -start_link(Name, Callback) -> - supervisor:start_link({local,Name}, ?MODULE, Callback). - -init(Callback) -> - {ok, {{simple_one_for_one, 10, 10}, - [{tcp_acceptor, {tcp_acceptor, start_link, [Callback]}, - transient, brutal_kill, worker, [tcp_acceptor]}]}}. diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl deleted file mode 100644 index cd646969..00000000 --- a/src/tcp_listener.erl +++ /dev/null @@ -1,84 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener). - --behaviour(gen_server). - --export([start_link/8]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {sock, on_startup, on_shutdown, label}). - -%%-------------------------------------------------------------------- - -start_link(IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label) -> - gen_server:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label}, []). - -%%-------------------------------------------------------------------- - -init({IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - {M,F,A} = OnStartup, OnShutdown, Label}) -> - process_flag(trap_exit, true), - case gen_tcp:listen(Port, SocketOpts ++ [{ip, IPAddress}, - {active, false}]) of - {ok, LSock} -> - lists:foreach(fun (_) -> - {ok, _APid} = supervisor:start_child( - AcceptorSup, [LSock]) - end, - lists:duplicate(ConcurrentAcceptorCount, dummy)), - {ok, {LIPAddress, LPort}} = inet:sockname(LSock), - error_logger:info_msg( - "started ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(LIPAddress), LPort]), - apply(M, F, A ++ [IPAddress, Port]), - {ok, #state{sock = LSock, - on_startup = OnStartup, on_shutdown = OnShutdown, - label = Label}}; - {error, Reason} -> - error_logger:error_msg( - "failed to start ~s on ~s:~p - ~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port, Reason]), - {stop, {cannot_listen, IPAddress, Port, Reason}} - end. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state{sock=LSock, on_shutdown = {M,F,A}, label=Label}) -> - {ok, {IPAddress, Port}} = inet:sockname(LSock), - gen_tcp:close(LSock), - error_logger:info_msg("stopped ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port]), - apply(M, F, A ++ [IPAddress, Port]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl deleted file mode 100644 index 58c2f30c..00000000 --- a/src/tcp_listener_sup.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener_sup). - --behaviour(supervisor). - --export([start_link/7, start_link/8]). - --export([init/1]). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, Label) -> - start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, 1, Label). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label) -> - supervisor:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}). - -init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}) -> - %% This is gross. The tcp_listener needs to know about the - %% tcp_acceptor_sup, and the only way I can think of accomplishing - %% that without jumping through hoops is to register the - %% tcp_acceptor_sup. - Name = rabbit_misc:tcp_name(tcp_acceptor_sup, IPAddress, Port), - {ok, {{one_for_all, 10, 10}, - [{tcp_acceptor_sup, {tcp_acceptor_sup, start_link, - [Name, AcceptCallback]}, - transient, infinity, supervisor, [tcp_acceptor_sup]}, - {tcp_listener, {tcp_listener, start_link, - [IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, Name, - OnStartup, OnShutdown, Label]}, - transient, 16#ffffffff, worker, [tcp_listener]}]}}. diff --git a/src/test_sup.erl b/src/test_sup.erl deleted file mode 100644 index 84c4121c..00000000 --- a/src/test_sup.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(test_sup). - --behaviour(supervisor2). - --export([test_supervisor_delayed_restart/0, - init/1, start_child/0]). - -test_supervisor_delayed_restart() -> - passed = with_sup(simple_one_for_one_terminate, - fun (SupPid) -> - {ok, _ChildPid} = - supervisor2:start_child(SupPid, []), - test_supervisor_delayed_restart(SupPid) - end), - passed = with_sup(one_for_one, fun test_supervisor_delayed_restart/1). - -test_supervisor_delayed_restart(SupPid) -> - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(100), - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(100), - timeout = ping_child(SupPid), - timer:sleep(1010), - ok = ping_child(SupPid), - passed. - -with_sup(RestartStrategy, Fun) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, [RestartStrategy]), - Res = Fun(SupPid), - unlink(SupPid), - exit(SupPid, shutdown), - Res. - -init([RestartStrategy]) -> - {ok, {{RestartStrategy, 1, 1}, - [{test, {test_sup, start_child, []}, {permanent, 1}, - 16#ffffffff, worker, [test_sup]}]}}. - -start_child() -> - {ok, proc_lib:spawn_link(fun run_child/0)}. - -ping_child(SupPid) -> - Ref = make_ref(), - with_child_pid(SupPid, fun(ChildPid) -> ChildPid ! {ping, Ref, self()} end), - receive {pong, Ref} -> ok - after 1000 -> timeout - end. - -exit_child(SupPid) -> - with_child_pid(SupPid, fun(ChildPid) -> exit(ChildPid, abnormal) end), - ok. - -with_child_pid(SupPid, Fun) -> - case supervisor2:which_children(SupPid) of - [{_Id, undefined, worker, [test_sup]}] -> ok; - [{_Id, ChildPid, worker, [test_sup]}] -> Fun(ChildPid); - [] -> ok - end. - -run_child() -> - receive {ping, Ref, Pid} -> Pid ! {pong, Ref}, - run_child() - end. diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl deleted file mode 100644 index fb2fa267..00000000 --- a/src/vm_memory_monitor.erl +++ /dev/null @@ -1,366 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% In practice Erlang shouldn't be allowed to grow to more than a half -%% of available memory. The pessimistic scenario is when the Erlang VM -%% has a single process that's consuming all memory. In such a case, -%% during garbage collection, Erlang tries to allocate a huge chunk of -%% continuous memory, which can result in a crash or heavy swapping. -%% -%% This module tries to warn Rabbit before such situations occur, so -%% that it has a higher chance to avoid running out of memory. - --module(vm_memory_monitor). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0, get_total_memory/0, get_vm_limit/0, - get_check_interval/0, set_check_interval/1, - get_vm_memory_high_watermark/0, set_vm_memory_high_watermark/1, - get_memory_limit/0]). - - --define(SERVER, ?MODULE). --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%% For an unknown OS, we assume that we have 1GB of memory. It'll be -%% wrong. Scale by vm_memory_high_watermark in configuration to get a -%% sensible value. --define(MEMORY_SIZE_FOR_UNKNOWN_OS, 1073741824). - --record(state, {total_memory, - memory_limit, - timeout, - timer, - alarmed - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (float()) -> {'ok', pid()} | {'error', any()}). --spec(update/0 :: () -> 'ok'). --spec(get_total_memory/0 :: () -> (non_neg_integer() | 'unknown')). --spec(get_vm_limit/0 :: () -> non_neg_integer()). --spec(get_memory_limit/0 :: () -> non_neg_integer()). --spec(get_check_interval/0 :: () -> non_neg_integer()). --spec(set_check_interval/1 :: (non_neg_integer()) -> 'ok'). --spec(get_vm_memory_high_watermark/0 :: () -> float()). --spec(set_vm_memory_high_watermark/1 :: (float()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -update() -> - gen_server:cast(?SERVER, update). - -get_total_memory() -> - get_total_memory(os:type()). - -get_vm_limit() -> - get_vm_limit(os:type()). - -get_check_interval() -> - gen_server:call(?MODULE, get_check_interval, infinity). - -set_check_interval(Fraction) -> - gen_server:call(?MODULE, {set_check_interval, Fraction}, infinity). - -get_vm_memory_high_watermark() -> - gen_server:call(?MODULE, get_vm_memory_high_watermark, infinity). - -set_vm_memory_high_watermark(Fraction) -> - gen_server:call(?MODULE, {set_vm_memory_high_watermark, Fraction}, - infinity). - -get_memory_limit() -> - gen_server:call(?MODULE, get_memory_limit, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -init([MemFraction]) -> - TotalMemory = - case get_total_memory() of - unknown -> - error_logger:warning_msg( - "Unknown total memory size for your OS ~p. " - "Assuming memory size is ~pMB.~n", - [os:type(), trunc(?MEMORY_SIZE_FOR_UNKNOWN_OS/1048576)]), - ?MEMORY_SIZE_FOR_UNKNOWN_OS; - M -> M - end, - MemLimit = get_mem_limit(MemFraction, TotalMemory), - error_logger:info_msg("Memory limit set to ~pMB.~n", - [trunc(MemLimit/1048576)]), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - State = #state { total_memory = TotalMemory, - memory_limit = MemLimit, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - alarmed = false}, - {ok, internal_update(State)}. - -handle_call(get_vm_memory_high_watermark, _From, State) -> - {reply, State#state.memory_limit / State#state.total_memory, State}; - -handle_call({set_vm_memory_high_watermark, MemFraction}, _From, State) -> - MemLimit = get_mem_limit(MemFraction, State#state.total_memory), - error_logger:info_msg("Memory alarm changed to ~p, ~p bytes.~n", - [MemFraction, MemLimit]), - {reply, ok, State#state{memory_limit = MemLimit}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_limit, _From, State) -> - {reply, State#state.memory_limit, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% Server Internals -%%---------------------------------------------------------------------------- - -internal_update(State = #state { memory_limit = MemLimit, - alarmed = Alarmed}) -> - MemUsed = erlang:memory(total), - NewAlarmed = MemUsed > MemLimit, - case {Alarmed, NewAlarmed} of - {false, true} -> - emit_update_info(set, MemUsed, MemLimit), - alarm_handler:set_alarm({{vm_memory_high_watermark, node()}, []}); - {true, false} -> - emit_update_info(clear, MemUsed, MemLimit), - alarm_handler:clear_alarm({vm_memory_high_watermark, node()}); - _ -> - ok - end, - State #state {alarmed = NewAlarmed}. - -emit_update_info(State, MemUsed, MemLimit) -> - error_logger:info_msg( - "vm_memory_high_watermark ~p. Memory used:~p allowed:~p~n", - [State, MemUsed, MemLimit]). - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% According to http://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx -%% Windows has 2GB and 8TB of address space for 32 and 64 bit accordingly. -get_vm_limit({win32,_OSname}) -> - case erlang:system_info(wordsize) of - 4 -> 2*1024*1024*1024; %% 2 GB for 32 bits 2^31 - 8 -> 8*1024*1024*1024*1024 %% 8 TB for 64 bits 2^42 - end; - -%% On a 32-bit machine, if you're using more than 2 gigs of RAM you're -%% in big trouble anyway. -get_vm_limit(_OsType) -> - case erlang:system_info(wordsize) of - 4 -> 4*1024*1024*1024; %% 4 GB for 32 bits 2^32 - 8 -> 256*1024*1024*1024*1024 %% 256 TB for 64 bits 2^48 - %%http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_details - end. - -get_mem_limit(MemFraction, TotalMemory) -> - AvMem = lists:min([TotalMemory, get_vm_limit()]), - trunc(AvMem * MemFraction). - -%%---------------------------------------------------------------------------- -%% Internal Helpers -%%---------------------------------------------------------------------------- -cmd(Command) -> - Exec = hd(string:tokens(Command, " ")), - case os:find_executable(Exec) of - false -> throw({command_not_found, Exec}); - _ -> os:cmd(Command) - end. - -%% get_total_memory(OS) -> Total -%% Windows and Freebsd code based on: memsup:get_memory_usage/1 -%% Original code was part of OTP and released under "Erlang Public License". - -get_total_memory({unix,darwin}) -> - File = cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_mach/1, Lines)), - [PageSize, Inactive, Active, Free, Wired] = - [dict:fetch(Key, Dict) || - Key <- [page_size, 'Pages inactive', 'Pages active', 'Pages free', - 'Pages wired down']], - PageSize * (Inactive + Active + Free + Wired); - -get_total_memory({unix,freebsd}) -> - PageSize = sysctl("vm.stats.vm.v_page_size"), - PageCount = sysctl("vm.stats.vm.v_page_count"), - PageCount * PageSize; - -get_total_memory({unix,openbsd}) -> - sysctl("hw.usermem"); - -get_total_memory({win32,_OSname}) -> - %% Due to the Erlang print format bug, on Windows boxes the memory - %% size is broken. For example Windows 7 64 bit with 4Gigs of RAM - %% we get negative memory size: - %% > os_mon_sysinfo:get_mem_info(). - %% ["76 -1658880 1016913920 -1 -1021628416 2147352576 2134794240\n"] - %% Due to this bug, we don't actually know anything. Even if the - %% number is postive we can't be sure if it's correct. This only - %% affects us on os_mon versions prior to 2.2.1. - case application:get_key(os_mon, vsn) of - undefined -> - unknown; - {ok, Version} -> - case rabbit_misc:version_compare(Version, "2.2.1", lt) of - true -> %% os_mon is < 2.2.1, so we know nothing - unknown; - false -> - [Result|_] = os_mon_sysinfo:get_mem_info(), - {ok, [_MemLoad, TotPhys, _AvailPhys, - _TotPage, _AvailPage, _TotV, _AvailV], _RestStr} = - io_lib:fread("~d~d~d~d~d~d~d", Result), - TotPhys - end - end; - -get_total_memory({unix, linux}) -> - File = read_proc_file("/proc/meminfo"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_linux/1, Lines)), - dict:fetch('MemTotal', Dict); - -get_total_memory({unix, sunos}) -> - File = cmd("/usr/sbin/prtconf"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_sunos/1, Lines)), - dict:fetch('Memory size', Dict); - -get_total_memory({unix, aix}) -> - File = cmd("/usr/bin/vmstat -v"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_aix/1, Lines)), - dict:fetch('memory pages', Dict) * 4096; - -get_total_memory(_OsType) -> - unknown. - -%% A line looks like "Foo bar: 123456." -parse_line_mach(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. - -%% A line looks like "FooBar: 123456 kB" -parse_line_linux(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. - -%% A line looks like "Memory size: 1024 Megabytes" -parse_line_sunos(Line) -> - case string:tokens(Line, ":") of - [Name, RHS | _Rest] -> - [Value1 | UnitsRest] = string:tokens(RHS, " "), - Value2 = case UnitsRest of - ["Gigabytes"] -> - list_to_integer(Value1) * 1024 * 1024 * 1024; - ["Megabytes"] -> - list_to_integer(Value1) * 1024 * 1024; - ["Kilobytes"] -> - list_to_integer(Value1) * 1024; - _ -> - Value1 ++ UnitsRest %% no known units - end, - {list_to_atom(Name), Value2}; - [Name] -> {list_to_atom(Name), none} - end. - -%% Lines look like " 12345 memory pages" -%% or " 80.1 maxpin percentage" -parse_line_aix(Line) -> - [Value | NameWords] = string:tokens(Line, " "), - Name = string:join(NameWords, " "), - {list_to_atom(Name), - case lists:member($., Value) of - true -> trunc(list_to_float(Value)); - false -> list_to_integer(Value) - end}. - -sysctl(Def) -> - list_to_integer(cmd("/sbin/sysctl -n " ++ Def) -- "\n"). - -%% file:read_file does not work on files in /proc as it seems to get -%% the size of the file first and then read that many bytes. But files -%% in /proc always have length 0, we just have to read until we get -%% eof. -read_proc_file(File) -> - {ok, IoDevice} = file:open(File, [read, raw]), - Res = read_proc_file(IoDevice, []), - file:close(IoDevice), - lists:flatten(lists:reverse(Res)). - --define(BUFFER_SIZE, 1024). -read_proc_file(IoDevice, Acc) -> - case file:read(IoDevice, ?BUFFER_SIZE) of - {ok, Res} -> read_proc_file(IoDevice, [Res | Acc]); - eof -> Acc - end. diff --git a/src/worker_pool.erl b/src/worker_pool.erl deleted file mode 100644 index e4f260cc..00000000 --- a/src/worker_pool.erl +++ /dev/null @@ -1,140 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool). - -%% Generic worker pool manager. -%% -%% Supports nested submission of jobs (nested jobs always run -%% immediately in current worker process). -%% -%% Possible future enhancements: -%% -%% 1. Allow priorities (basically, change the pending queue to a -%% priority_queue). - --behaviour(gen_server2). - --export([start_link/0, submit/1, submit_async/1, idle/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(submit/1 :: (fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/1 :: - (fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(state, { available, pending }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], - [{timeout, infinity}]). - -submit(Fun) -> - case get(worker_pool_worker) of - true -> worker_pool_worker:run(Fun); - _ -> Pid = gen_server2:call(?SERVER, next_free, infinity), - worker_pool_worker:submit(Pid, Fun) - end. - -submit_async(Fun) -> - gen_server2:cast(?SERVER, {run_async, Fun}). - -idle(WId) -> - gen_server2:cast(?SERVER, {idle, WId}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state { pending = queue:new(), available = queue:new() }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(next_free, From, State = #state { available = Avail, - pending = Pending }) -> - case queue:out(Avail) of - {empty, _Avail} -> - {noreply, - State #state { pending = queue:in({next_free, From}, Pending) }, - hibernate}; - {{value, WId}, Avail1} -> - {reply, get_worker_pid(WId), State #state { available = Avail1 }, - hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({idle, WId}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, case queue:out(Pending) of - {empty, _Pending} -> - State #state { available = queue:in(WId, Avail) }; - {{value, {next_free, From}}, Pending1} -> - gen_server2:reply(From, get_worker_pid(WId)), - State #state { pending = Pending1 }; - {{value, {run_async, Fun}}, Pending1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { pending = Pending1 } - end, hibernate}; - -handle_cast({run_async, Fun}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, - case queue:out(Avail) of - {empty, _Avail} -> - State #state { pending = queue:in({run_async, Fun}, Pending)}; - {{value, WId}, Avail1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { available = Avail1 } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. - -%%---------------------------------------------------------------------------- - -get_worker_pid(WId) -> - [{WId, Pid, _Type, _Modules} | _] = - lists:dropwhile(fun ({Id, _Pid, _Type, _Modules}) - when Id =:= WId -> false; - (_) -> true - end, - supervisor:which_children(worker_pool_sup)), - Pid. diff --git a/src/worker_pool_sup.erl b/src/worker_pool_sup.erl deleted file mode 100644 index 28c1adc6..00000000 --- a/src/worker_pool_sup.erl +++ /dev/null @@ -1,53 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_sup). - --behaviour(supervisor). - --export([start_link/0, start_link/1]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link() -> - start_link(erlang:system_info(schedulers)). - -start_link(WCount) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [WCount]). - -%%---------------------------------------------------------------------------- - -init([WCount]) -> - {ok, {{one_for_one, 10, 10}, - [{worker_pool, {worker_pool, start_link, []}, transient, - 16#ffffffff, worker, [worker_pool]} | - [{N, {worker_pool_worker, start_link, [N]}, transient, 16#ffffffff, - worker, [worker_pool_worker]} || N <- lists:seq(1, WCount)]]}}. diff --git a/src/worker_pool_worker.erl b/src/worker_pool_worker.erl deleted file mode 100644 index 78ab4df3..00000000 --- a/src/worker_pool_worker.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_worker). - --behaviour(gen_server2). - --export([start_link/1, submit/2, submit_async/2, run/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (any()) -> {'ok', pid()} | {'error', any()}). --spec(submit/2 :: (pid(), fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/2 :: - (pid(), fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). --spec(run/1 :: (fun (() -> A)) -> A; - ({atom(), atom(), [any()]}) -> any()). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(WId) -> - gen_server2:start_link(?MODULE, [WId], [{timeout, infinity}]). - -submit(Pid, Fun) -> - gen_server2:call(Pid, {submit, Fun}, infinity). - -submit_async(Pid, Fun) -> - gen_server2:cast(Pid, {submit_async, Fun}). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -run({M, F, A}) -> - apply(M, F, A); -run(Fun) -> - Fun(). - -%%---------------------------------------------------------------------------- - -init([WId]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - ok = worker_pool:idle(WId), - put(worker_pool_worker, true), - {ok, WId, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call({submit, Fun}, From, WId) -> - gen_server2:reply(From, run(Fun)), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({submit_async, Fun}, WId) -> - run(Fun), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_cast({set_maximum_since_use, Age}, WId) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, WId, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. -- cgit v1.2.1 From 476a61fe46c7c36e875fc2003219670b4605c9f0 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 2 Aug 2011 17:16:55 +0100 Subject: Pre-junk this: I junked an ancestor of this earlier, I really meant to junk this. --- INSTALL.in | 10 - LICENSE | 5 - LICENSE-MPL-RabbitMQ | 455 ---- Makefile | 332 --- README.in | 10 - calculate-relative | 45 - codegen.py | 493 ---- docs/examples-to-end.xsl | 90 - docs/html-to-website-xml.xsl | 98 - docs/rabbitmq-env.conf.5.xml | 83 - docs/rabbitmq-server.1.xml | 131 - docs/rabbitmq-service.xml | 217 -- docs/rabbitmqctl.1.xml | 1370 ----------- docs/remove-namespaces.xsl | 18 - docs/usage.xsl | 74 - ebin/rabbit_app.in | 45 - generate_app | 16 - generate_deps | 57 - include/gm_specs.hrl | 28 - include/rabbit.hrl | 101 - include/rabbit_auth_backend_spec.hrl | 31 - include/rabbit_auth_mechanism_spec.hrl | 28 - include/rabbit_backing_queue_spec.hrl | 68 - include/rabbit_exchange_type_spec.hrl | 38 - include/rabbit_msg_store.hrl | 25 - include/rabbit_msg_store_index.hrl | 45 - packaging/RPMS/Fedora/Makefile | 49 - packaging/RPMS/Fedora/rabbitmq-server.logrotate | 12 - packaging/RPMS/Fedora/rabbitmq-server.spec | 205 -- packaging/common/rabbitmq-script-wrapper | 42 - packaging/common/rabbitmq-server.init | 154 -- packaging/common/rabbitmq-server.ocf | 341 --- packaging/debs/Debian/Makefile | 45 - packaging/debs/Debian/check-changelog.sh | 29 - packaging/debs/Debian/debian/changelog | 174 -- packaging/debs/Debian/debian/compat | 1 - packaging/debs/Debian/debian/control | 15 - packaging/debs/Debian/debian/copyright | 502 ---- packaging/debs/Debian/debian/dirs | 9 - packaging/debs/Debian/debian/postinst | 60 - packaging/debs/Debian/debian/postrm.in | 73 - .../debs/Debian/debian/rabbitmq-server.logrotate | 12 - packaging/debs/Debian/debian/rules | 21 - packaging/debs/Debian/debian/watch | 4 - packaging/debs/apt-repository/Makefile | 28 - packaging/debs/apt-repository/README | 17 - .../debs/apt-repository/README-real-repository | 130 - packaging/debs/apt-repository/distributions | 7 - packaging/debs/apt-repository/dupload.conf | 16 - packaging/generic-unix/Makefile | 23 - packaging/macports/Makefile | 59 - packaging/macports/Portfile.in | 116 - packaging/macports/make-checksums.sh | 14 - packaging/macports/make-port-diff.sh | 27 - .../patch-org.macports.rabbitmq-server.plist.diff | 10 - packaging/windows-exe/Makefile | 16 - packaging/windows-exe/rabbitmq.ico | Bin 4286 -> 0 bytes packaging/windows-exe/rabbitmq_nsi.in | 237 -- packaging/windows/Makefile | 35 - quickcheck | 36 - scripts/rabbitmq-env | 45 - scripts/rabbitmq-server | 117 - scripts/rabbitmq-server.bat | 156 -- scripts/rabbitmq-service.bat | 245 -- scripts/rabbitmqctl | 31 - scripts/rabbitmqctl.bat | 49 - src/bpqueue.erl | 271 --- src/delegate.erl | 154 -- src/delegate_sup.erl | 59 - src/file_handle_cache.erl | 1197 ---------- src/gatherer.erl | 130 - src/gen_server2.erl | 1181 --------- src/gm.erl | 1379 ----------- src/gm_soak_test.erl | 131 - src/gm_speed_test.erl | 82 - src/gm_tests.erl | 182 -- src/pg2_fixed.erl | 388 --- src/priority_queue.erl | 194 -- src/rabbit.erl | 603 ----- src/rabbit_access_control.erl | 103 - src/rabbit_alarm.erl | 166 -- src/rabbit_amqqueue.erl | 553 ----- src/rabbit_amqqueue_process.erl | 1185 --------- src/rabbit_amqqueue_sup.erl | 38 - src/rabbit_auth_backend.erl | 57 - src/rabbit_auth_backend_internal.erl | 333 --- src/rabbit_auth_mechanism.erl | 46 - src/rabbit_auth_mechanism_amqplain.erl | 58 - src/rabbit_auth_mechanism_cr_demo.erl | 60 - src/rabbit_auth_mechanism_plain.erl | 76 - src/rabbit_backing_queue.erl | 171 -- src/rabbit_backing_queue_qc.erl | 392 --- src/rabbit_basic.erl | 197 -- src/rabbit_binary_generator.erl | 337 --- src/rabbit_binary_parser.erl | 165 -- src/rabbit_binding.erl | 455 ---- src/rabbit_channel.erl | 1534 ------------ src/rabbit_channel_sup.erl | 93 - src/rabbit_channel_sup_sup.erl | 48 - src/rabbit_client_sup.erl | 48 - src/rabbit_command_assembler.erl | 133 -- src/rabbit_connection_sup.erl | 61 - src/rabbit_control.erl | 476 ---- src/rabbit_direct.erl | 100 - src/rabbit_error_logger.erl | 78 - src/rabbit_error_logger_file_h.erl | 68 - src/rabbit_event.erl | 139 -- src/rabbit_exchange.erl | 359 --- src/rabbit_exchange_type.erl | 54 - src/rabbit_exchange_type_direct.erl | 50 - src/rabbit_exchange_type_fanout.erl | 49 - src/rabbit_exchange_type_headers.erl | 123 - src/rabbit_exchange_type_topic.erl | 278 --- src/rabbit_framing.erl | 49 - src/rabbit_guid.erl | 119 - src/rabbit_heartbeat.erl | 149 -- src/rabbit_limiter.erl | 233 -- src/rabbit_log.erl | 132 - src/rabbit_memory_monitor.erl | 280 --- src/rabbit_mirror_queue_coordinator.erl | 395 --- src/rabbit_mirror_queue_master.erl | 390 --- src/rabbit_mirror_queue_misc.erl | 135 -- src/rabbit_mirror_queue_slave.erl | 850 ------- src/rabbit_mirror_queue_slave_sup.erl | 48 - src/rabbit_misc.erl | 944 -------- src/rabbit_mnesia.erl | 746 ------ src/rabbit_msg_file.erl | 125 - src/rabbit_msg_store.erl | 1944 --------------- src/rabbit_msg_store_ets_index.erl | 79 - src/rabbit_msg_store_gc.erl | 137 -- src/rabbit_msg_store_index.erl | 32 - src/rabbit_net.erl | 143 -- src/rabbit_networking.erl | 398 ---- src/rabbit_node_monitor.erl | 102 - src/rabbit_prelaunch.erl | 286 --- src/rabbit_queue_collector.erl | 92 - src/rabbit_queue_index.erl | 1070 --------- src/rabbit_reader.erl | 938 -------- src/rabbit_registry.erl | 124 - src/rabbit_restartable_sup.erl | 32 - src/rabbit_router.erl | 140 -- src/rabbit_sasl_report_file_h.erl | 81 - src/rabbit_ssl.erl | 246 -- src/rabbit_sup.erl | 64 - src/rabbit_tests.erl | 2511 -------------------- src/rabbit_tests_event_receiver.erl | 51 - src/rabbit_trace.erl | 120 - src/rabbit_types.erl | 159 -- src/rabbit_upgrade.erl | 289 --- src/rabbit_upgrade_functions.erl | 197 -- src/rabbit_variable_queue.erl | 1686 ------------- src/rabbit_version.erl | 172 -- src/rabbit_vhost.erl | 130 - src/rabbit_writer.erl | 249 -- src/supervisor2.erl | 1018 -------- src/tcp_acceptor.erl | 106 - src/tcp_acceptor_sup.erl | 31 - src/tcp_listener.erl | 84 - src/tcp_listener_sup.erl | 51 - src/test_sup.erl | 81 - src/vm_memory_monitor.erl | 366 --- src/worker_pool.erl | 140 -- src/worker_pool_sup.erl | 53 - src/worker_pool_worker.erl | 106 - 164 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-instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/LICENSE b/LICENSE deleted file mode 100644 index 89640485..00000000 --- a/LICENSE +++ /dev/null @@ -1,5 +0,0 @@ -This package, the RabbitMQ server is licensed under the MPL. For the -MPL, please see LICENSE-MPL-RabbitMQ. - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. diff --git a/LICENSE-MPL-RabbitMQ b/LICENSE-MPL-RabbitMQ deleted file mode 100644 index 14bcc21d..00000000 --- a/LICENSE-MPL-RabbitMQ +++ /dev/null @@ -1,455 +0,0 @@ - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] diff --git a/Makefile b/Makefile deleted file mode 100644 index ee2700af..00000000 --- a/Makefile +++ /dev/null @@ -1,332 +0,0 @@ -TMPDIR ?= /tmp - -RABBITMQ_NODENAME ?= rabbit -RABBITMQ_SERVER_START_ARGS ?= -RABBITMQ_MNESIA_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-mnesia -RABBITMQ_PLUGINS_EXPAND_DIR ?= $(TMPDIR)/rabbitmq-$(RABBITMQ_NODENAME)-plugins-scratch -RABBITMQ_LOG_BASE ?= $(TMPDIR) - -DEPS_FILE=deps.mk -SOURCE_DIR=src -EBIN_DIR=ebin -INCLUDE_DIR=include -DOCS_DIR=docs -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl -SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) -BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) -TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) -WEB_URL=http://www.rabbitmq.com/ -MANPAGES=$(patsubst %.xml, %.gz, $(wildcard $(DOCS_DIR)/*.[0-9].xml)) -WEB_MANPAGES=$(patsubst %.xml, %.man.xml, $(wildcard $(DOCS_DIR)/*.[0-9].xml) $(DOCS_DIR)/rabbitmq-service.xml) -USAGES_XML=$(DOCS_DIR)/rabbitmqctl.1.xml -USAGES_ERL=$(foreach XML, $(USAGES_XML), $(call usage_xml_to_erl, $(XML))) -QC_MODULES := rabbit_backing_queue_qc -QC_TRIALS ?= 100 - -ifeq ($(shell python -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python -else -ifeq ($(shell python2.6 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.6 -else -ifeq ($(shell python2.5 -c 'import simplejson' 2>/dev/null && echo yes),yes) -PYTHON=python2.5 -else -# Hmm. Missing simplejson? -PYTHON=python -endif -endif -endif - -BASIC_PLT=basic.plt -RABBIT_PLT=rabbit.plt - -ifndef USE_SPECS -# our type specs rely on features and bug fixes in dialyzer that are -# only available in R14B03 upwards (R14B03 is erts 5.8.4) -USE_SPECS:=$(shell erl -noshell -eval 'io:format([list_to_integer(X) || X <- string:tokens(erlang:system_info(version), ".")] >= [5,8,4]), halt().') -endif - -ifndef USE_PROPER_QC -# PropEr needs to be installed for property checking -# http://proper.softlab.ntua.gr/ -USE_PROPER_QC:=$(shell erl -noshell -eval 'io:format({module, proper} =:= code:ensure_loaded(proper)), halt().') -endif - -#other args: +native +"{hipe,[o3,verbose]}" -Ddebug=true +debug_info +no_strict_record_tests -ERLC_OPTS=-I $(INCLUDE_DIR) -o $(EBIN_DIR) -Wall -v +debug_info $(call boolean_macro,$(USE_SPECS),use_specs) $(call boolean_macro,$(USE_PROPER_QC),use_proper_qc) - -VERSION=0.0.0 -TARBALL_NAME=rabbitmq-server-$(VERSION) -TARGET_SRC_DIR=dist/$(TARBALL_NAME) - -SIBLING_CODEGEN_DIR=../rabbitmq-codegen/ -AMQP_CODEGEN_DIR=$(shell [ -d $(SIBLING_CODEGEN_DIR) ] && echo $(SIBLING_CODEGEN_DIR) || echo codegen) -AMQP_SPEC_JSON_FILES_0_9_1=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.9.1.json -AMQP_SPEC_JSON_FILES_0_8=$(AMQP_CODEGEN_DIR)/amqp-rabbitmq-0.8.json - -ERL_CALL=erl_call -sname $(RABBITMQ_NODENAME) -e - -ERL_EBIN=erl -noinput -pa $(EBIN_DIR) - -define usage_xml_to_erl - $(subst __,_,$(patsubst $(DOCS_DIR)/rabbitmq%.1.xml, $(SOURCE_DIR)/rabbit_%_usage.erl, $(subst -,_,$(1)))) -endef - -define usage_dep - $(call usage_xml_to_erl, $(1)): $(1) $(DOCS_DIR)/usage.xsl -endef - -define boolean_macro -$(if $(filter true,$(1)),-D$(2)) -endef - -ifneq "$(SBIN_DIR)" "" -ifneq "$(TARGET_DIR)" "" -SCRIPTS_REL_PATH=$(shell ./calculate-relative $(TARGET_DIR)/sbin $(SBIN_DIR)) -endif -endif - -# Versions prior to this are not supported -NEED_MAKE := 3.80 -ifneq "$(NEED_MAKE)" "$(firstword $(sort $(NEED_MAKE) $(MAKE_VERSION)))" -$(error Versions of make prior to $(NEED_MAKE) are not supported) -endif - -# .DEFAULT_GOAL introduced in 3.81 -DEFAULT_GOAL_MAKE := 3.81 -ifneq "$(DEFAULT_GOAL_MAKE)" "$(firstword $(sort $(DEFAULT_GOAL_MAKE) $(MAKE_VERSION)))" -.DEFAULT_GOAL=all -endif - -all: $(TARGETS) - -$(DEPS_FILE): $(SOURCES) $(INCLUDES) - rm -f $@ - echo $(subst : ,:,$(foreach FILE,$^,$(FILE):)) | escript generate_deps $@ $(EBIN_DIR) - -$(EBIN_DIR)/rabbit.app: $(EBIN_DIR)/rabbit_app.in $(SOURCES) generate_app - escript generate_app $< $@ $(SOURCE_DIR) - -$(EBIN_DIR)/%.beam: $(SOURCE_DIR)/%.erl | $(DEPS_FILE) - erlc $(ERLC_OPTS) -pa $(EBIN_DIR) $< - -$(INCLUDE_DIR)/rabbit_framing.hrl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py --ignore-conflicts header $(AMQP_SPEC_JSON_FILES_0_9_1) $(AMQP_SPEC_JSON_FILES_0_8) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_9_1) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_9_1) $@ - -$(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl: codegen.py $(AMQP_CODEGEN_DIR)/amqp_codegen.py $(AMQP_SPEC_JSON_FILES_0_8) - $(PYTHON) codegen.py body $(AMQP_SPEC_JSON_FILES_0_8) $@ - -dialyze: $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --no_native \ - -Wrace_conditions $(BEAM_TARGETS) - -# rabbit.plt is used by rabbitmq-erlang-client's dialyze make target -create-plt: $(RABBIT_PLT) - -$(RABBIT_PLT): $(BEAM_TARGETS) $(BASIC_PLT) - dialyzer --plt $(BASIC_PLT) --output_plt $@ --no_native \ - --add_to_plt $(BEAM_TARGETS) - -$(BASIC_PLT): $(BEAM_TARGETS) - if [ -f $@ ]; then \ - touch $@; \ - else \ - dialyzer --output_plt $@ --build_plt \ - --apps erts kernel stdlib compiler sasl os_mon mnesia tools \ - public_key crypto ssl; \ - fi - -clean: - rm -f $(EBIN_DIR)/*.beam - rm -f $(EBIN_DIR)/rabbit.app $(EBIN_DIR)/rabbit.boot $(EBIN_DIR)/rabbit.script $(EBIN_DIR)/rabbit.rel - rm -f $(INCLUDE_DIR)/rabbit_framing.hrl $(SOURCE_DIR)/rabbit_framing_amqp_*.erl codegen.pyc - rm -f $(DOCS_DIR)/*.[0-9].gz $(DOCS_DIR)/*.man.xml $(DOCS_DIR)/*.erl $(USAGES_ERL) - rm -f $(RABBIT_PLT) - rm -f $(DEPS_FILE) - -cleandb: - rm -rf $(RABBITMQ_MNESIA_DIR)/* - -############ various tasks to interact with RabbitMQ ################### - -BASIC_SCRIPT_ENVIRONMENT_SETTINGS=\ - RABBITMQ_NODE_IP_ADDRESS="$(RABBITMQ_NODE_IP_ADDRESS)" \ - RABBITMQ_NODE_PORT="$(RABBITMQ_NODE_PORT)" \ - RABBITMQ_LOG_BASE="$(RABBITMQ_LOG_BASE)" \ - RABBITMQ_MNESIA_DIR="$(RABBITMQ_MNESIA_DIR)" \ - RABBITMQ_PLUGINS_EXPAND_DIR="$(RABBITMQ_PLUGINS_EXPAND_DIR)" - -run: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-node: all - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_ALLOW_INPUT=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS)" \ - ./scripts/rabbitmq-server - -run-tests: all - OUT=$$(echo "rabbit_tests:all_tests()." | $(ERL_CALL)) ; \ - echo $$OUT ; echo $$OUT | grep '^{ok, passed}$$' > /dev/null - -run-qc: all - $(foreach MOD,$(QC_MODULES),./quickcheck $(RABBITMQ_NODENAME) $(MOD) $(QC_TRIALS)) - -start-background-node: - $(BASIC_SCRIPT_ENVIRONMENT_SETTINGS) \ - RABBITMQ_NODE_ONLY=true \ - RABBITMQ_SERVER_START_ARGS="$(RABBITMQ_SERVER_START_ARGS) -detached" \ - ./scripts/rabbitmq-server; sleep 1 - -start-rabbit-on-node: all - echo "rabbit:start()." | $(ERL_CALL) - -stop-rabbit-on-node: all - echo "rabbit:stop()." | $(ERL_CALL) - -set-memory-alarm: all - echo "alarm_handler:set_alarm({{vm_memory_high_watermark, node()}, []})." | \ - $(ERL_CALL) - -clear-memory-alarm: all - echo "alarm_handler:clear_alarm({vm_memory_high_watermark, node()})." | \ - $(ERL_CALL) - -stop-node: - -$(ERL_CALL) -q - -# code coverage will be created for subdirectory "ebin" of COVER_DIR -COVER_DIR=. - -start-cover: all - echo "rabbit_misc:start_cover([\"rabbit\", \"hare\"])." | $(ERL_CALL) - echo "rabbit_misc:enable_cover([\"$(COVER_DIR)\"])." | $(ERL_CALL) - -start-secondary-cover: all - echo "rabbit_misc:start_cover([\"hare\"])." | $(ERL_CALL) - -stop-cover: all - echo "rabbit_misc:report_cover(), cover:stop()." | $(ERL_CALL) - cat cover/summary.txt - -######################################################################## - -srcdist: distclean - mkdir -p $(TARGET_SRC_DIR)/codegen - cp -r ebin src include LICENSE LICENSE-MPL-RabbitMQ $(TARGET_SRC_DIR) - cp INSTALL.in $(TARGET_SRC_DIR)/INSTALL - elinks -dump -no-references -no-numbering $(WEB_URL)install.html \ - >> $(TARGET_SRC_DIR)/INSTALL - cp README.in $(TARGET_SRC_DIR)/README - elinks -dump -no-references -no-numbering $(WEB_URL)build-server.html \ - >> $(TARGET_SRC_DIR)/README - sed -i.save 's/%%VSN%%/$(VERSION)/' $(TARGET_SRC_DIR)/ebin/rabbit_app.in && rm -f $(TARGET_SRC_DIR)/ebin/rabbit_app.in.save - - cp -r $(AMQP_CODEGEN_DIR)/* $(TARGET_SRC_DIR)/codegen/ - cp codegen.py Makefile generate_app generate_deps calculate-relative $(TARGET_SRC_DIR) - - cp -r scripts $(TARGET_SRC_DIR) - cp -r $(DOCS_DIR) $(TARGET_SRC_DIR) - chmod 0755 $(TARGET_SRC_DIR)/scripts/* - - (cd dist; tar -zcf $(TARBALL_NAME).tar.gz $(TARBALL_NAME)) - (cd dist; zip -q -r $(TARBALL_NAME).zip $(TARBALL_NAME)) - rm -rf $(TARGET_SRC_DIR) - -distclean: clean - $(MAKE) -C $(AMQP_CODEGEN_DIR) distclean - rm -rf dist - find . -regex '.*\(~\|#\|\.swp\|\.dump\)' -exec rm {} \; - -# xmlto can not read from standard input, so we mess with a tmp file. -%.gz: %.xml $(DOCS_DIR)/examples-to-end.xsl - xmlto --version | grep -E '^xmlto version 0\.0\.([0-9]|1[1-8])$$' >/dev/null || opt='--stringparam man.indent.verbatims=0' ; \ - xsltproc --novalid $(DOCS_DIR)/examples-to-end.xsl $< > $<.tmp && \ - xmlto -o $(DOCS_DIR) $$opt man $<.tmp && \ - gzip -f $(DOCS_DIR)/`basename $< .xml` - rm -f $<.tmp - -# Use tmp files rather than a pipeline so that we get meaningful errors -# Do not fold the cp into previous line, it's there to stop the file being -# generated but empty if we fail -$(SOURCE_DIR)/%_usage.erl: - xsltproc --novalid --stringparam modulename "`basename $@ .erl`" \ - $(DOCS_DIR)/usage.xsl $< > $@.tmp - sed -e 's/"/\\"/g' -e 's/%QUOTE%/"/g' $@.tmp > $@.tmp2 - fold -s $@.tmp2 > $@.tmp3 - mv $@.tmp3 $@ - rm $@.tmp $@.tmp2 - -# We rename the file before xmlto sees it since xmlto will use the name of -# the file to make internal links. -%.man.xml: %.xml $(DOCS_DIR)/html-to-website-xml.xsl - cp $< `basename $< .xml`.xml && \ - xmlto xhtml-nochunks `basename $< .xml`.xml ; rm `basename $< .xml`.xml - cat `basename $< .xml`.html | \ - xsltproc --novalid $(DOCS_DIR)/remove-namespaces.xsl - | \ - xsltproc --novalid --stringparam original `basename $<` $(DOCS_DIR)/html-to-website-xml.xsl - | \ - xmllint --format - > $@ - rm `basename $< .xml`.html - -docs_all: $(MANPAGES) $(WEB_MANPAGES) - -install: install_bin install_docs - -install_bin: all install_dirs - cp -r ebin include LICENSE LICENSE-MPL-RabbitMQ INSTALL $(TARGET_DIR) - - chmod 0755 scripts/* - for script in rabbitmq-env rabbitmq-server rabbitmqctl; do \ - cp scripts/$$script $(TARGET_DIR)/sbin; \ - [ -e $(SBIN_DIR)/$$script ] || ln -s $(SCRIPTS_REL_PATH)/$$script $(SBIN_DIR)/$$script; \ - done - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory. > $(TARGET_DIR)/plugins/README - -install_docs: docs_all install_dirs - for section in 1 5; do \ - mkdir -p $(MAN_DIR)/man$$section; \ - for manpage in $(DOCS_DIR)/*.$$section.gz; do \ - cp $$manpage $(MAN_DIR)/man$$section; \ - done; \ - done - -install_dirs: - @ OK=true && \ - { [ -n "$(TARGET_DIR)" ] || { echo "Please set TARGET_DIR."; OK=false; }; } && \ - { [ -n "$(SBIN_DIR)" ] || { echo "Please set SBIN_DIR."; OK=false; }; } && \ - { [ -n "$(MAN_DIR)" ] || { echo "Please set MAN_DIR."; OK=false; }; } && $$OK - - mkdir -p $(TARGET_DIR)/sbin - mkdir -p $(SBIN_DIR) - mkdir -p $(MAN_DIR) - -$(foreach XML,$(USAGES_XML),$(eval $(call usage_dep, $(XML)))) - -# Note that all targets which depend on clean must have clean in their -# name. Also any target that doesn't depend on clean should not have -# clean in its name, unless you know that you don't need any of the -# automatic dependency generation for that target (eg cleandb). - -# We want to load the dep file if *any* target *doesn't* contain -# "clean" - i.e. if removing all clean-like targets leaves something - -ifeq "$(MAKECMDGOALS)" "" -TESTABLEGOALS:=$(.DEFAULT_GOAL) -else -TESTABLEGOALS:=$(MAKECMDGOALS) -endif - -ifneq "$(strip $(patsubst clean%,,$(patsubst %clean,,$(TESTABLEGOALS))))" "" --include $(DEPS_FILE) -endif - -.PHONY: run-qc diff --git a/README.in b/README.in deleted file mode 100644 index 0e70d0e7..00000000 --- a/README.in +++ /dev/null @@ -1,10 +0,0 @@ -Please see http://www.rabbitmq.com/build-server.html for build -instructions. - -For your convenience, a text copy of these instructions is available -below. Please be aware that the instructions here may not be as up to -date as those at the above URL. - -=========================================================================== - - diff --git a/calculate-relative b/calculate-relative deleted file mode 100755 index 3af18e8f..00000000 --- a/calculate-relative +++ /dev/null @@ -1,45 +0,0 @@ -#!/usr/bin/env python -# -# relpath.py -# R.Barran 30/08/2004 -# Retrieved from http://code.activestate.com/recipes/302594/ - -import os -import sys - -def relpath(target, base=os.curdir): - """ - Return a relative path to the target from either the current dir or an optional base dir. - Base can be a directory specified either as absolute or relative to current dir. - """ - - if not os.path.exists(target): - raise OSError, 'Target does not exist: '+target - - if not os.path.isdir(base): - raise OSError, 'Base is not a directory or does not exist: '+base - - base_list = (os.path.abspath(base)).split(os.sep) - target_list = (os.path.abspath(target)).split(os.sep) - - # On the windows platform the target may be on a completely different drive from the base. - if os.name in ['nt','dos','os2'] and base_list[0] <> target_list[0]: - raise OSError, 'Target is on a different drive to base. Target: '+target_list[0].upper()+', base: '+base_list[0].upper() - - # Starting from the filepath root, work out how much of the filepath is - # shared by base and target. - for i in range(min(len(base_list), len(target_list))): - if base_list[i] <> target_list[i]: break - else: - # If we broke out of the loop, i is pointing to the first differing path elements. - # If we didn't break out of the loop, i is pointing to identical path elements. - # Increment i so that in all cases it points to the first differing path elements. - i+=1 - - rel_list = [os.pardir] * (len(base_list)-i) + target_list[i:] - if (len(rel_list) == 0): - return "." - return os.path.join(*rel_list) - -if __name__ == "__main__": - print(relpath(sys.argv[1], sys.argv[2])) diff --git a/codegen.py b/codegen.py deleted file mode 100644 index 8cd9dab8..00000000 --- a/codegen.py +++ /dev/null @@ -1,493 +0,0 @@ -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -from __future__ import nested_scopes - -import sys -sys.path.append("../rabbitmq-codegen") # in case we're next to an experimental revision -sys.path.append("codegen") # in case we're building from a distribution package - -from amqp_codegen import * -import string -import re - -erlangTypeMap = { - 'octet': 'octet', - 'shortstr': 'shortstr', - 'longstr': 'longstr', - 'short': 'shortint', - 'long': 'longint', - 'longlong': 'longlongint', - 'bit': 'bit', - 'table': 'table', - 'timestamp': 'timestamp', -} - -# Coming up with a proper encoding of AMQP tables in JSON is too much -# hassle at this stage. Given that the only default value we are -# interested in is for the empty table, we only support that. -def convertTable(d): - if len(d) == 0: - return "[]" - else: raise 'Non-empty table defaults not supported', d - -erlangDefaultValueTypeConvMap = { - bool : lambda x: str(x).lower(), - str : lambda x: "<<\"" + x + "\">>", - int : lambda x: str(x), - float : lambda x: str(x), - dict: convertTable, - unicode: lambda x: "<<\"" + x.encode("utf-8") + "\">>" -} - -def erlangize(s): - s = s.replace('-', '_') - s = s.replace(' ', '_') - return s - -AmqpMethod.erlangName = lambda m: "'" + erlangize(m.klass.name) + '.' + erlangize(m.name) + "'" - -AmqpClass.erlangName = lambda c: "'" + erlangize(c.name) + "'" - -def erlangConstantName(s): - return '_'.join(re.split('[- ]', s.upper())) - -class PackedMethodBitField: - def __init__(self, index): - self.index = index - self.domain = 'bit' - self.contents = [] - - def extend(self, f): - self.contents.append(f) - - def count(self): - return len(self.contents) - - def full(self): - return self.count() == 8 - -def multiLineFormat(things, prologue, separator, lineSeparator, epilogue, thingsPerLine = 4): - r = [prologue] - i = 0 - for t in things: - if i != 0: - if i % thingsPerLine == 0: - r += [lineSeparator] - else: - r += [separator] - r += [t] - i += 1 - r += [epilogue] - return "".join(r) - -def prettyType(typeName, subTypes, typesPerLine = 4): - """Pretty print a type signature made up of many alternative subtypes""" - sTs = multiLineFormat(subTypes, - "( ", " | ", "\n | ", " )", - thingsPerLine = typesPerLine) - return "-type(%s ::\n %s)." % (typeName, sTs) - -def printFileHeader(): - print """%% Autogenerated code. Do not edit. -%% -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%%""" - -def genErl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldTypeList(fields): - return '[' + ', '.join([erlType(f.domain) for f in fields]) + ']' - - def fieldNameList(fields): - return '[' + ', '.join([erlangize(f.name) for f in fields]) + ']' - - def fieldTempList(fields): - return '[' + ', '.join(['F' + str(f.index) for f in fields]) + ']' - - def fieldMapList(fields): - return ', '.join([erlangize(f.name) + " = F" + str(f.index) for f in fields]) - - def genLookupMethodName(m): - print "lookup_method_name({%d, %d}) -> %s;" % (m.klass.index, m.index, m.erlangName()) - - def genLookupClassName(c): - print "lookup_class_name(%d) -> %s;" % (c.index, c.erlangName()) - - def genMethodId(m): - print "method_id(%s) -> {%d, %d};" % (m.erlangName(), m.klass.index, m.index) - - def genMethodHasContent(m): - print "method_has_content(%s) -> %s;" % (m.erlangName(), str(m.hasContent).lower()) - - def genMethodIsSynchronous(m): - hasNoWait = "nowait" in fieldNameList(m.arguments) - if m.isSynchronous and hasNoWait: - print "is_method_synchronous(#%s{nowait = NoWait}) -> not(NoWait);" % (m.erlangName()) - else: - print "is_method_synchronous(#%s{}) -> %s;" % (m.erlangName(), str(m.isSynchronous).lower()) - - def genMethodFieldTypes(m): - """Not currently used - may be useful in future?""" - print "method_fieldtypes(%s) -> %s;" % (m.erlangName(), fieldTypeList(m.arguments)) - - def genMethodFieldNames(m): - print "method_fieldnames(%s) -> %s;" % (m.erlangName(), fieldNameList(m.arguments)) - - def packMethodFields(fields): - packed = [] - bitfield = None - for f in fields: - if erlType(f.domain) == 'bit': - if not(bitfield) or bitfield.full(): - bitfield = PackedMethodBitField(f.index) - packed.append(bitfield) - bitfield.extend(f) - else: - bitfield = None - packed.append(f) - return packed - - def methodFieldFragment(f): - type = erlType(f.domain) - p = 'F' + str(f.index) - if type == 'shortstr': - return p+'Len:8/unsigned, '+p+':'+p+'Len/binary' - elif type == 'longstr': - return p+'Len:32/unsigned, '+p+':'+p+'Len/binary' - elif type == 'octet': - return p+':8/unsigned' - elif type == 'shortint': - return p+':16/unsigned' - elif type == 'longint': - return p+':32/unsigned' - elif type == 'longlongint': - return p+':64/unsigned' - elif type == 'timestamp': - return p+':64/unsigned' - elif type == 'bit': - return p+'Bits:8' - elif type == 'table': - return p+'Len:32/unsigned, '+p+'Tab:'+p+'Len/binary' - - def genFieldPostprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - for index in range(f.count()): - print " F%d = ((F%dBits band %d) /= 0)," % \ - (f.index + index, - f.index, - 1 << index) - elif type == 'table': - print " F%d = rabbit_binary_parser:parse_table(F%dTab)," % \ - (f.index, f.index) - else: - pass - - def genMethodRecord(m): - print "method_record(%s) -> #%s{};" % (m.erlangName(), m.erlangName()) - - def genDecodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - binaryPattern = ', '.join([methodFieldFragment(f) for f in packedFields]) - if binaryPattern: - restSeparator = ', ' - else: - restSeparator = '' - recordConstructorExpr = '#%s{%s}' % (m.erlangName(), fieldMapList(m.arguments)) - print "decode_method_fields(%s, <<%s>>) ->" % (m.erlangName(), binaryPattern) - genFieldPostprocessing(packedFields) - print " %s;" % (recordConstructorExpr,) - - def genDecodeProperties(c): - print "decode_properties(%d, PropBin) ->" % (c.index) - print " %s = rabbit_binary_parser:parse_properties(%s, PropBin)," % \ - (fieldTempList(c.fields), fieldTypeList(c.fields)) - print " #'P_%s'{%s};" % (erlangize(c.name), fieldMapList(c.fields)) - - def genFieldPreprocessing(packed): - for f in packed: - type = erlType(f.domain) - if type == 'bit': - print " F%dBits = (%s)," % \ - (f.index, - ' bor '.join(['(bitvalue(F%d) bsl %d)' % (x.index, x.index - f.index) - for x in f.contents])) - elif type == 'table': - print " F%dTab = rabbit_binary_generator:generate_table(F%d)," % (f.index, f.index) - print " F%dLen = size(F%dTab)," % (f.index, f.index) - elif type == 'shortstr': - print " F%dLen = shortstr_size(F%d)," % (f.index, f.index) - elif type == 'longstr': - print " F%dLen = size(F%d)," % (f.index, f.index) - else: - pass - - def genEncodeMethodFields(m): - packedFields = packMethodFields(m.arguments) - print "encode_method_fields(#%s{%s}) ->" % (m.erlangName(), fieldMapList(m.arguments)) - genFieldPreprocessing(packedFields) - print " <<%s>>;" % (', '.join([methodFieldFragment(f) for f in packedFields])) - - def genEncodeProperties(c): - print "encode_properties(#'P_%s'{%s}) ->" % (erlangize(c.name), fieldMapList(c.fields)) - print " rabbit_binary_generator:encode_properties(%s, %s);" % \ - (fieldTypeList(c.fields), fieldTempList(c.fields)) - - def messageConstantClass(cls): - # We do this because 0.8 uses "soft error" and 8.1 uses "soft-error". - return erlangConstantName(cls) - - def genLookupException(c,v,cls): - mCls = messageConstantClass(cls) - if mCls == 'SOFT_ERROR': genLookupException1(c,'false') - elif mCls == 'HARD_ERROR': genLookupException1(c, 'true') - elif mCls == '': pass - else: raise 'Unknown constant class', cls - - def genLookupException1(c,hardErrorBoolStr): - n = erlangConstantName(c) - print 'lookup_amqp_exception(%s) -> {%s, ?%s, <<"%s">>};' % \ - (n.lower(), hardErrorBoolStr, n, n) - - def genAmqpException(c,v,cls): - n = erlangConstantName(c) - print 'amqp_exception(?%s) -> %s;' % \ - (n, n.lower()) - - methods = spec.allMethods() - - printFileHeader() - module = "rabbit_framing_amqp_%d_%d" % (spec.major, spec.minor) - if spec.revision != 0: - module = "%s_%d" % (module, spec.revision) - if module == "rabbit_framing_amqp_8_0": - module = "rabbit_framing_amqp_0_8" - print "-module(%s)." % module - print """-include("rabbit_framing.hrl"). - --export([version/0]). --export([lookup_method_name/1]). --export([lookup_class_name/1]). - --export([method_id/1]). --export([method_has_content/1]). --export([is_method_synchronous/1]). --export([method_record/1]). --export([method_fieldnames/1]). --export([decode_method_fields/2]). --export([decode_properties/2]). --export([encode_method_fields/1]). --export([encode_properties/1]). --export([lookup_amqp_exception/1]). --export([amqp_exception/1]). - -""" - print "%% Various types" - print "-ifdef(use_specs)." - - print """-export_type([amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(amqp_field_type() :: - 'longstr' | 'signedint' | 'decimal' | 'timestamp' | - 'table' | 'byte' | 'double' | 'float' | 'long' | - 'short' | 'bool' | 'binary' | 'void' | 'array'). --type(amqp_property_type() :: - 'shortstr' | 'longstr' | 'octet' | 'shortint' | 'longint' | - 'longlongint' | 'timestamp' | 'bit' | 'table'). - --type(amqp_table() :: [{binary(), amqp_field_type(), amqp_value()}]). --type(amqp_array() :: [{amqp_field_type(), amqp_value()}]). --type(amqp_value() :: binary() | % longstr - integer() | % signedint - {non_neg_integer(), non_neg_integer()} | % decimal - amqp_table() | - amqp_array() | - byte() | % byte - float() | % double - integer() | % long - integer() | % short - boolean() | % bool - binary() | % binary - 'undefined' | % void - non_neg_integer() % timestamp - ). -""" - - print prettyType("amqp_method_name()", - [m.erlangName() for m in methods]) - print prettyType("amqp_method()", - ["{%s, %s}" % (m.klass.index, m.index) for m in methods], - 6) - print prettyType("amqp_method_record()", - ["#%s{}" % (m.erlangName()) for m in methods]) - fieldNames = set() - for m in methods: - fieldNames.update(m.arguments) - fieldNames = [erlangize(f.name) for f in fieldNames] - print prettyType("amqp_method_field_name()", - fieldNames) - print prettyType("amqp_property_record()", - ["#'P_%s'{}" % erlangize(c.name) for c in spec.allClasses()]) - print prettyType("amqp_exception()", - ["'%s'" % erlangConstantName(c).lower() for (c, v, cls) in spec.constants]) - print prettyType("amqp_exception_code()", - ["%i" % v for (c, v, cls) in spec.constants]) - classIds = set() - for m in spec.allMethods(): - classIds.add(m.klass.index) - print prettyType("amqp_class_id()", - ["%i" % ci for ci in classIds]) - print "-endif. % use_specs" - - print """ -%% Method signatures --ifdef(use_specs). --spec(version/0 :: () -> {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --spec(lookup_method_name/1 :: (amqp_method()) -> amqp_method_name()). --spec(method_id/1 :: (amqp_method_name()) -> amqp_method()). --spec(method_has_content/1 :: (amqp_method_name()) -> boolean()). --spec(is_method_synchronous/1 :: (amqp_method_record()) -> boolean()). --spec(method_record/1 :: (amqp_method_name()) -> amqp_method_record()). --spec(method_fieldnames/1 :: (amqp_method_name()) -> [amqp_method_field_name()]). --spec(decode_method_fields/2 :: - (amqp_method_name(), binary()) -> amqp_method_record() | rabbit_types:connection_exit()). --spec(decode_properties/2 :: (non_neg_integer(), binary()) -> amqp_property_record()). --spec(encode_method_fields/1 :: (amqp_method_record()) -> binary()). --spec(encode_properties/1 :: (amqp_property_record()) -> binary()). --spec(lookup_amqp_exception/1 :: (amqp_exception()) -> {boolean(), amqp_exception_code(), binary()}). --spec(amqp_exception/1 :: (amqp_exception_code()) -> amqp_exception()). --endif. % use_specs - -bitvalue(true) -> 1; -bitvalue(false) -> 0; -bitvalue(undefined) -> 0. - -shortstr_size(S) -> - case size(S) of - Len when Len =< 255 -> Len; - _ -> exit(method_field_shortstr_overflow) - end. -""" - version = "{%d, %d, %d}" % (spec.major, spec.minor, spec.revision) - if version == '{8, 0, 0}': version = '{0, 8, 0}' - print "version() -> %s." % (version) - - for m in methods: genLookupMethodName(m) - print "lookup_method_name({_ClassId, _MethodId} = Id) -> exit({unknown_method_id, Id})." - - for c in spec.allClasses(): genLookupClassName(c) - print "lookup_class_name(ClassId) -> exit({unknown_class_id, ClassId})." - - for m in methods: genMethodId(m) - print "method_id(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodHasContent(m) - print "method_has_content(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodIsSynchronous(m) - print "is_method_synchronous(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodRecord(m) - print "method_record(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genMethodFieldNames(m) - print "method_fieldnames(Name) -> exit({unknown_method_name, Name})." - - for m in methods: genDecodeMethodFields(m) - print "decode_method_fields(Name, BinaryFields) ->" - print " rabbit_misc:frame_error(Name, BinaryFields)." - - for c in spec.allClasses(): genDecodeProperties(c) - print "decode_properties(ClassId, _BinaryFields) -> exit({unknown_class_id, ClassId})." - - for m in methods: genEncodeMethodFields(m) - print "encode_method_fields(Record) -> exit({unknown_method_name, element(1, Record)})." - - for c in spec.allClasses(): genEncodeProperties(c) - print "encode_properties(Record) -> exit({unknown_properties_record, Record})." - - for (c,v,cls) in spec.constants: genLookupException(c,v,cls) - print "lookup_amqp_exception(Code) ->" - print " rabbit_log:warning(\"Unknown AMQP error code '~p'~n\", [Code])," - print " {true, ?INTERNAL_ERROR, <<\"INTERNAL_ERROR\">>}." - - for(c,v,cls) in spec.constants: genAmqpException(c,v,cls) - print "amqp_exception(_Code) -> undefined." - -def genHrl(spec): - def erlType(domain): - return erlangTypeMap[spec.resolveDomain(domain)] - - def fieldNameList(fields): - return ', '.join([erlangize(f.name) for f in fields]) - - def fieldNameListDefaults(fields): - def fillField(field): - result = erlangize(f.name) - if field.defaultvalue != None: - conv_fn = erlangDefaultValueTypeConvMap[type(field.defaultvalue)] - result += ' = ' + conv_fn(field.defaultvalue) - return result - return ', '.join([fillField(f) for f in fields]) - - methods = spec.allMethods() - - printFileHeader() - print "-define(PROTOCOL_PORT, %d)." % (spec.port) - - for (c,v,cls) in spec.constants: - print "-define(%s, %s)." % (erlangConstantName(c), v) - - print "%% Method field records." - for m in methods: - print "-record(%s, {%s})." % (m.erlangName(), fieldNameListDefaults(m.arguments)) - - print "%% Class property records." - for c in spec.allClasses(): - print "-record('P_%s', {%s})." % (erlangize(c.name), fieldNameList(c.fields)) - - -def generateErl(specPath): - genErl(AmqpSpec(specPath)) - -def generateHrl(specPath): - genHrl(AmqpSpec(specPath)) - -if __name__ == "__main__": - do_main_dict({"header": generateHrl, - "body": generateErl}) - diff --git a/docs/examples-to-end.xsl b/docs/examples-to-end.xsl deleted file mode 100644 index a0a74178..00000000 --- a/docs/examples-to-end.xsl +++ /dev/null @@ -1,90 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - Examples - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [] - - - - {} - - - - - - - - diff --git a/docs/html-to-website-xml.xsl b/docs/html-to-website-xml.xsl deleted file mode 100644 index 4bfcf6ca..00000000 --- a/docs/html-to-website-xml.xsl +++ /dev/null @@ -1,98 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - -type="text/xml" href="page.xsl" - - - <xsl:value-of select="document($original)/refentry/refnamediv/refname"/><xsl:if test="document($original)/refentry/refmeta/manvolnum">(<xsl:value-of select="document($original)/refentry/refmeta/manvolnum"/>)</xsl:if> manual page - 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- - - - diff --git a/docs/rabbitmq-env.conf.5.xml b/docs/rabbitmq-env.conf.5.xml deleted file mode 100644 index c887596c..00000000 --- a/docs/rabbitmq-env.conf.5.xml +++ /dev/null @@ -1,83 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-env.conf - 5 - RabbitMQ Server - - - - rabbitmq-env.conf - default settings for RabbitMQ AMQP server - - - - Description - -/etc/rabbitmq/rabbitmq-env.conf contains variable settings that override the -defaults built in to the RabbitMQ startup scripts. - - -The file is interpreted by the system shell, and so should consist of -a sequence of shell environment variable definitions. Normal shell -syntax is permitted (since the file is sourced using the shell "." -operator), including line comments starting with "#". - - -In order of preference, the startup scripts get their values from the -environment, from /etc/rabbitmq/rabbitmq-env.conf and finally from the -built-in default values. For example, for the RABBITMQ_NODENAME -setting, - - - RABBITMQ_NODENAME - - -from the environment is checked first. If it is absent or equal to the -empty string, then - - - NODENAME - - -from /etc/rabbitmq/rabbitmq-env.conf is checked. If it is also absent -or set equal to the empty string then the default value from the -startup script is used. - - -The variable names in /etc/rabbitmq/rabbitmq-env.conf are always equal to the -environment variable names, with the RABBITMQ_ prefix removed: -RABBITMQ_NODE_PORT from the environment becomes NODE_PORT in the -/etc/rabbitmq/rabbitmq-env.conf file, etc. - - For example: - -# I am a complete /etc/rabbitmq/rabbitmq-env.conf file. -# Comment lines start with a hash character. -# This is a /bin/sh script file - use ordinary envt var syntax -NODENAME=hare - - - This is an example of a complete - /etc/rabbitmq/rabbitmq-env.conf file that overrides the default Erlang - node name from "rabbit" to "hare". - - - - - - See also - - rabbitmq-server1 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-server.1.xml b/docs/rabbitmq-server.1.xml deleted file mode 100644 index ca63927c..00000000 --- a/docs/rabbitmq-server.1.xml +++ /dev/null @@ -1,131 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-server - 1 - RabbitMQ Server - - - - rabbitmq-server - start RabbitMQ AMQP server - - - - - rabbitmq-server - -detached - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-server in the foreground displays a banner message, -and reports on progress in the startup sequence, concluding with the -message "broker running", indicating that the RabbitMQ broker has been -started successfully. To shut down the server, just terminate the -process or use rabbitmqctl(1). - - - - - Environment - - - - RABBITMQ_MNESIA_BASE - - -Defaults to /var/lib/rabbitmq/mnesia. Set this to the directory where -Mnesia database files should be placed. - - - - - - RABBITMQ_LOG_BASE - - -Defaults to /var/log/rabbitmq. Log files generated by the server will -be placed in this directory. - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - - - - Options - - - -detached - - - start the server process in the background - - For example: - rabbitmq-server -detached - - Runs RabbitMQ AMQP server in the background. - - - - - - - - See also - - rabbitmq-env.conf5 - rabbitmqctl1 - - - diff --git a/docs/rabbitmq-service.xml b/docs/rabbitmq-service.xml deleted file mode 100644 index 3368960b..00000000 --- a/docs/rabbitmq-service.xml +++ /dev/null @@ -1,217 +0,0 @@ - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmq-service.bat - RabbitMQ Server - - - - rabbitmq-service.bat - manage RabbitMQ AMQP service - - - - - rabbitmq-service.bat - command - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - - -Running rabbitmq-service allows the RabbitMQ broker to be run as a -service on NT/2000/2003/XP/Vista® environments. The RabbitMQ broker -service can be started and stopped using the Windows® services -applet. - - -By default the service will run in the authentication context of the -local system account. It is therefore necessary to synchronise Erlang -cookies between the local system account (typically -C:\WINDOWS\.erlang.cookie and the account that will be used to -run rabbitmqctl. - - - - - Commands - - - - help - - -Display usage information. - - - - - - install - - -Install the service. The service will not be started. -Subsequent invocations will update the service parameters if -relevant environment variables were modified. - - - - - - remove - - -Remove the service. If the service is running then it will -automatically be stopped before being removed. No files will be -deleted as a consequence and rabbitmq-server will remain operable. - - - - - - start - - -Start the service. The service must have been correctly installed -beforehand. - - - - - - stop - - -Stop the service. The service must be running for this command to -have any effect. - - - - - - disable - - -Disable the service. This is the equivalent of setting the startup -type to Disabled using the service control panel. - - - - - - enable - - -Enable the service. This is the equivalent of setting the startup -type to Automatic using the service control panel. - - - - - - - - Environment - - - - RABBITMQ_SERVICENAME - - -Defaults to RabbitMQ. - - - - - - RABBITMQ_BASE - - -Defaults to the application data directory of the current user. -This is the location of log and database directories. - - - - - - - RABBITMQ_NODENAME - - -Defaults to rabbit. This can be useful if you want to run more than -one node per machine - RABBITMQ_NODENAME should be unique per -erlang-node-and-machine combination. See the -clustering on a single -machine guide for details. - - - - - - RABBITMQ_NODE_IP_ADDRESS - - -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if -available. Set this if you only want to bind to one network interface -or address family. - - - - - - RABBITMQ_NODE_PORT - - -Defaults to 5672. - - - - - - ERLANG_SERVICE_MANAGER_PATH - - -Defaults to C:\Program Files\erl5.5.5\erts-5.5.5\bin -(or C:\Program Files (x86)\erl5.5.5\erts-5.5.5\bin for 64-bit -environments). This is the installation location of the Erlang service -manager. - - - - - - RABBITMQ_CONSOLE_LOG - - -Set this varable to new or reuse to have the console -output from the server redirected to a file named SERVICENAME.debug -in the application data directory of the user that installed the service. -Under Vista this will be C:\Users\AppData\username\SERVICENAME. -Under previous versions of Windows this will be -C:\Documents and Settings\username\Application Data\SERVICENAME. -If RABBITMQ_CONSOLE_LOG is set to new then a new file will be -created each time the service starts. If RABBITMQ_CONSOLE_LOG is -set to reuse then the file will be overwritten each time the -service starts. The default behaviour when RABBITMQ_CONSOLE_LOG is -not set or set to a value other than new or reuse is to discard -the server output. - - - - - - diff --git a/docs/rabbitmqctl.1.xml b/docs/rabbitmqctl.1.xml deleted file mode 100644 index ee000215..00000000 --- a/docs/rabbitmqctl.1.xml +++ /dev/null @@ -1,1370 +0,0 @@ - - - - - - - RabbitMQ Server - - The RabbitMQ Team <info@rabbitmq.com> - - - - - rabbitmqctl - 1 - RabbitMQ Service - - - - rabbitmqctl - command line tool for managing a RabbitMQ broker - - - - - rabbitmqctl - -n node - -q - command - command options - - - - - Description - - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. - - - rabbitmqctl is a command line tool for managing a - RabbitMQ broker. It performs all actions by connecting to one of the - broker's nodes. - - - Diagnostic information is displayed if the broker was not - running, could not be reached, or rejected the connection due to - mismatching Erlang cookies. - - - - - Options - - - -n node - - - Default node is "rabbit@server", where server is the local host. On - a host named "server.example.com", the node name of the RabbitMQ - Erlang node will usually be rabbit@server (unless RABBITMQ_NODENAME - has been set to some non-default value at broker startup time). The - output of hostname -s is usually the correct suffix to use after the - "@" sign. See rabbitmq-server(1) for details of configuring the - RabbitMQ broker. - - - - - -q - - - Quiet output mode is selected with the "-q" flag. Informational - messages are suppressed when quiet mode is in effect. - - - - - - - - Commands - - - Application and Cluster Management - - - - stop - - - Stops the Erlang node on which RabbitMQ is running. To - restart the node follow the instructions for Running - the Server in the installation - guide. - - For example: - rabbitmqctl stop - - This command instructs the RabbitMQ node to terminate. - - - - - - stop_app - - - Stops the RabbitMQ application, leaving the Erlang node - running. - - - This command is typically run prior to performing other - management actions that require the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl stop_app - - This command instructs the RabbitMQ node to stop the - RabbitMQ application. - - - - - - start_app - - - Starts the RabbitMQ application. - - - This command is typically run after performing other - management actions that required the RabbitMQ application - to be stopped, e.g. reset. - - For example: - rabbitmqctl start_app - - This command instructs the RabbitMQ node to start the - RabbitMQ application. - - - - - - wait - - - Wait for the RabbitMQ application to start. - - - This command will wait for the RabbitMQ application to - start at the node. As long as the Erlang node is up but - the RabbitMQ application is down it will wait - indefinitely. If the node itself goes down, or takes - more than five seconds to come up, it will fail. - - For example: - rabbitmqctl wait - - This command will return when the RabbitMQ node has - started up. - - - - - - reset - - - Return a RabbitMQ node to its virgin state. - - - Removes the node from any cluster it belongs to, removes - all data from the management database, such as configured - users and vhosts, and deletes all persistent - messages. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl reset - - This command resets the RabbitMQ node. - - - - - - force_reset - - - Forcefully return a RabbitMQ node to its virgin state. - - - The force_reset command differs from - reset in that it resets the node - unconditionally, regardless of the current management - database state and cluster configuration. It should only - be used as a last resort if the database or cluster - configuration has been corrupted. - - - For reset and force_reset to - succeed the RabbitMQ application must have been stopped, - e.g. with stop_app. - - For example: - rabbitmqctl force_reset - - This command resets the RabbitMQ node. - - - - - - rotate_logs suffix - - - Instruct the RabbitMQ node to rotate the log files. - - - The RabbitMQ broker will attempt to append the current contents - of the log file to the file with name composed of the original - name and the suffix. - It will create a new file if such a file does not already exist. - When no is specified, the empty log file is - simply created at the original location; no rotation takes place. - - - When an error occurs while appending the contents of the old log - file, the operation behaves in the same way as if no was - specified. - - - This command might be helpful when you are e.g. writing your - own logrotate script and you do not want to restart the RabbitMQ - node. - - For example: - rabbitmqctl rotate_logs .1 - - This command instructs the RabbitMQ node to append the current content - of the log files to the files with names consisting of the original logs' - names and ".1" suffix, e.g. rabbit.log.1. Finally, the old log files are reopened. - - - - - - - - Cluster management - - - - cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. To cluster with currently offline nodes, - use force_cluster. - - - Cluster nodes can be of two types: disk or ram. Disk nodes - replicate data in ram and on disk, thus providing - redundancy in the event of node failure and recovery from - global events such as power failure across all nodes. Ram - nodes replicate data in ram only and are mainly used for - scalability. A cluster must always have at least one disk node. - - - If the current node is to become a disk node it needs to - appear in the cluster node list. Otherwise it becomes a - ram node. If the node list is empty or only contains the - current node then the node becomes a standalone, - i.e. non-clustered, (disk) node. - - - After executing the cluster command, whenever - the RabbitMQ application is started on the current node it - will attempt to connect to the specified nodes, thus - becoming an active node in the cluster comprising those - nodes (and possibly others). - - - The list of nodes does not have to contain all the - cluster's nodes; a subset is sufficient. Also, clustering - generally succeeds as long as at least one of the - specified nodes is active. Hence adjustments to the list - are only necessary if the cluster configuration is to be - altered radically. - - - For this command to succeed the RabbitMQ application must - have been stopped, e.g. with stop_app. Furthermore, - turning a standalone node into a clustered node requires - the node be reset first, - in order to avoid accidental destruction of data with the - cluster command. - - - For more details see the clustering guide. - - For example: - rabbitmqctl cluster rabbit@tanto hare@elena - - This command instructs the RabbitMQ node to join the - cluster with nodes rabbit@tanto and - hare@elena. If the node is one of these then - it becomes a disk node, otherwise a ram node. - - - - - force_cluster clusternode ... - - - - clusternode - Subset of the nodes of the cluster to which this node should be connected. - - - - Instruct the node to become member of a cluster with the - specified nodes. This will succeed even if the specified nodes - are offline. For a more detailed description, see - cluster. - - - Note that this variant of the cluster command just - ignores the current status of the specified nodes. - Clustering may still fail for a variety of other - reasons. - - - - - cluster_status - - - Displays all the nodes in the cluster grouped by node type, - together with the currently running nodes. - - For example: - rabbitmqctl cluster_status - - This command displays the nodes in the cluster. - - - - - - - - Closing individual connections - - - - close_connection connectionpid explanation - - - - connectionpid - Id of the Erlang process associated with the connection to close. - - - explanation - Explanation string. - - - - Instruct the broker to close the connection associated - with the Erlang process id (see also the - list_connections - command), passing the string to the - connected client as part of the AMQP connection shutdown - protocol. - - For example: - rabbitmqctl close_connection "<rabbit@tanto.4262.0>" "go away" - - This command instructs the RabbitMQ broker to close the - connection associated with the Erlang process - id <rabbit@tanto.4262.0>, passing the - explanation go away to the connected client. - - - - - - - - User management - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Users from any alternative - authentication backend will not be visible - to rabbitmqctl. - - - - add_user username password - - - - username - The name of the user to create. - - - password - The password the created user will use to log in to the broker. - - - For example: - rabbitmqctl add_user tonyg changeit - - This command instructs the RabbitMQ broker to create a - (non-administrative) user named tonyg with - (initial) password - changeit. - - - - - - delete_user username - - - - username - The name of the user to delete. - - - For example: - rabbitmqctl delete_user tonyg - - This command instructs the RabbitMQ broker to delete the - user named tonyg. - - - - - - change_password username newpassword - - - - username - The name of the user whose password is to be changed. - - - newpassword - The new password for the user. - - - For example: - rabbitmqctl change_password tonyg newpass - - This command instructs the RabbitMQ broker to change the - password for the user named tonyg to - newpass. - - - - - - clear_password username - - - - username - The name of the user whose password is to be cleared. - - - For example: - rabbitmqctl clear_password tonyg - - This command instructs the RabbitMQ broker to clear the - password for the user named - tonyg. This user now cannot log in with a password (but may be able to through e.g. SASL EXTERNAL if configured). - - - - - - set_user_tags username tag ... - - - - username - The name of the user whose tags are to - be set. - - - tag - Zero, one or more tags to set. Any - existing tags will be removed. - - - For example: - rabbitmqctl set_user_tags tonyg administrator - - This command instructs the RabbitMQ broker to ensure the user - named tonyg is an administrator. This has no - effect when the user logs in via AMQP, but can be used to permit - the user to manage users, virtual hosts and permissions when the - user logs in via some other means (for example with the - management plugin). - - rabbitmqctl set_user_tags tonyg - - This command instructs the RabbitMQ broker to remove any - tags from the user named tonyg. - - - - - - list_users - - Lists users - For example: - rabbitmqctl list_users - - This command instructs the RabbitMQ broker to list all - users. Each result row will contain the user name and - the administrator status of the user, in that order. - - - - - - - - Access control - - Note that rabbitmqctl manages the RabbitMQ - internal user database. Permissions for users from any - alternative authorisation backend will not be visible - to rabbitmqctl. - - - - add_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to create. - - - - Creates a virtual host. - - For example: - rabbitmqctl add_vhost test - - This command instructs the RabbitMQ broker to create a new - virtual host called test. - - - - - - delete_vhost vhostpath - - - - vhostpath - The name of the virtual host entry to delete. - - - - Deletes a virtual host. - - - Deleting a virtual host deletes all its exchanges, - queues, user mappings and associated permissions. - - For example: - rabbitmqctl delete_vhost test - - This command instructs the RabbitMQ broker to delete the - virtual host called test. - - - - - - list_vhosts vhostinfoitem ... - - - Lists virtual hosts. - - - The vhostinfoitem parameter is used to indicate which - virtual host information items to include in the results. The column order in the - results will match the order of the parameters. - vhostinfoitem can take any value from - the list that follows: - - - - name - The name of the virtual host with non-ASCII characters escaped as in C. - - - tracing - Whether tracing is enabled for this virtual host. - - - - If no vhostinfoitems are specified - then the vhost name is displayed. - - For example: - rabbitmqctl list_vhosts name tracing - - This command instructs the RabbitMQ broker to list all - virtual hosts. - - - - - - set_permissions -p vhostpath user conf write read - - - - vhostpath - The name of the virtual host to which to grant the user access, defaulting to /. - - - user - The name of the user to grant access to the specified virtual host. - - - conf - A regular expression matching resource names for which the user is granted configure permissions. - - - write - A regular expression matching resource names for which the user is granted write permissions. - - - read - A regular expression matching resource names for which the user is granted read permissions. - - - - Sets user permissions. - - For example: - rabbitmqctl set_permissions -p /myvhost tonyg "^tonyg-.*" ".*" ".*" - - This command instructs the RabbitMQ broker to grant the - user named tonyg access to the virtual host - called /myvhost, with configure permissions - on all resources whose names starts with "tonyg-", and - write and read permissions on all resources. - - - - - - clear_permissions -p vhostpath username - - - - vhostpath - The name of the virtual host to which to deny the user access, defaulting to /. - - - username - The name of the user to deny access to the specified virtual host. - - - - Sets user permissions. - - For example: - rabbitmqctl clear_permissions -p /myvhost tonyg - - This command instructs the RabbitMQ broker to deny the - user named tonyg access to the virtual host - called /myvhost. - - - - - - list_permissions -p vhostpath - - - - vhostpath - The name of the virtual host for which to list the users that have been granted access to it, and their permissions. Defaults to /. - - - - Lists permissions in a virtual host. - - For example: - rabbitmqctl list_permissions -p /myvhost - - This command instructs the RabbitMQ broker to list all - the users which have been granted access to the virtual - host called /myvhost, and the - permissions they have for operations on resources in - that virtual host. Note that an empty string means no - permissions granted. - - - - - - list_user_permissions -p vhostpath username - - - - username - The name of the user for which to list the permissions. - - - - Lists user permissions. - - For example: - rabbitmqctl list_user_permissions tonyg - - This command instructs the RabbitMQ broker to list all the - virtual hosts to which the user named tonyg - has been granted access, and the permissions the user has - for operations on resources in these virtual hosts. - - - - - - - - Server Status - - The server status queries interrogate the server and return a list of - results with tab-delimited columns. Some queries (list_queues, - list_exchanges, list_bindings, and - list_consumers) accept an - optional vhost parameter. This parameter, if present, must be - specified immediately after the query. - - - The list_queues, list_exchanges and list_bindings commands accept an - optional virtual host parameter for which to display results. The - default value is "/". - - - - - list_queues -p vhostpath queueinfoitem ... - - - Returns queue details. Queue details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The queueinfoitem parameter is used to indicate which queue - information items to include in the results. The column order in the - results will match the order of the parameters. - queueinfoitem can take any value from the list - that follows: - - - - name - The name of the queue with non-ASCII characters escaped as in C. - - - durable - Whether or not the queue survives server restarts. - - - auto_delete - Whether the queue will be deleted automatically when no longer used. - - - arguments - Queue arguments. - - - pid - Id of the Erlang process associated with the queue. - - - owner_pid - Id of the Erlang process representing the connection - which is the exclusive owner of the queue. Empty if the - queue is non-exclusive. - - - exclusive_consumer_pid - Id of the Erlang process representing the channel of the - exclusive consumer subscribed to this queue. Empty if - there is no exclusive consumer. - - - exclusive_consumer_tag - Consumer tag of the exclusive consumer subscribed to - this queue. Empty if there is no exclusive consumer. - - - messages_ready - Number of messages ready to be delivered to clients. - - - messages_unacknowledged - Number of messages delivered to clients but not yet acknowledged. - - - messages - Sum of ready and unacknowledged messages - (queue depth). - - - consumers - Number of consumers. - - - memory - Bytes of memory consumed by the Erlang process associated with the - queue, including stack, heap and internal structures. - - - - If no queueinfoitems are specified then queue name and depth are - displayed. - - - For example: - - rabbitmqctl list_queues -p /myvhost messages consumers - - This command displays the depth and number of consumers for each - queue of the virtual host named /myvhost. - - - - - - list_exchanges -p vhostpath exchangeinfoitem ... - - - Returns exchange details. Exchange details of the / virtual host - are returned if the "-p" flag is absent. The "-p" flag can be used to - override this default. - - - The exchangeinfoitem parameter is used to indicate which - exchange information items to include in the results. The column order in the - results will match the order of the parameters. - exchangeinfoitem can take any value from the list - that follows: - - - - name - The name of the exchange with non-ASCII characters escaped as in C. - - - type - The exchange type (one of [direct, - topic, headers, - fanout]). - - - durable - Whether or not the exchange survives server restarts. - - - auto_delete - Whether the exchange will be deleted automatically when no longer used. - - - internal - Whether the exchange is internal, i.e. cannot be directly published to by a client. - - - arguments - Exchange arguments. - - - - If no exchangeinfoitems are specified then - exchange name and type are displayed. - - - For example: - - rabbitmqctl list_exchanges -p /myvhost name type - - This command displays the name and type for each - exchange of the virtual host named /myvhost. - - - - - - list_bindings -p vhostpath bindinginfoitem ... - - - Returns binding details. By default the bindings for - the / virtual host are returned. The - "-p" flag can be used to override this default. - - - The bindinginfoitem parameter is used - to indicate which binding information items to include - in the results. The column order in the results will - match the order of the parameters. - bindinginfoitem can take any value - from the list that follows: - - - - source_name - The name of the source of messages to - which the binding is attached. With non-ASCII - characters escaped as in C. - - - source_kind - The kind of the source of messages to - which the binding is attached. Currently always - queue. With non-ASCII characters escaped as in - C. - - - destination_name - The name of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - destination_kind - The kind of the destination of - messages to which the binding is attached. With - non-ASCII characters escaped as in - C. - - - routing_key - The binding's routing key, with - non-ASCII characters escaped as in C. - - - arguments - The binding's arguments. - - - - If no bindinginfoitems are specified then - all above items are displayed. - - - For example: - - rabbitmqctl list_bindings -p /myvhost exchange_name queue_name - - This command displays the exchange name and queue name - of the bindings in the virtual host - named /myvhost. - - - - - - list_connections connectioninfoitem ... - - - Returns TCP/IP connection statistics. - - - The connectioninfoitem parameter is used to indicate - which connection information items to include in the results. The - column order in the results will match the order of the parameters. - connectioninfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - address - Server IP address. - - - port - Server port. - - - peer_address - Peer address. - - - peer_port - Peer port. - - - ssl - Boolean indicating whether the - connection is secured with SSL. - - - ssl_protocol - SSL protocol - (e.g. tlsv1) - - - ssl_key_exchange - SSL key exchange algorithm - (e.g. rsa) - - - ssl_cipher - SSL cipher algorithm - (e.g. aes_256_cbc) - - - ssl_hash - SSL hash function - (e.g. sha) - - - peer_cert_subject - The subject of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_issuer - The issuer of the peer's SSL - certificate, in RFC4514 form. - - - peer_cert_validity - The period for which the peer's SSL - certificate is valid. - - - state - Connection state (one of [starting, tuning, - opening, running, closing, closed]). - - - channels - Number of channels using the connection. - - - protocol - Version of the AMQP protocol in use (currently one of {0,9,1} or {0,8,0}). Note that if a client requests an AMQP 0-9 connection, we treat it as AMQP 0-9-1. - - - auth_mechanism - SASL authentication mechanism used, such as PLAIN. - - - user - Username associated with the connection. - - - vhost - Virtual host name with non-ASCII characters escaped as in C. - - - timeout - Connection timeout. - - - frame_max - Maximum frame size (bytes). - - - client_properties - Informational properties transmitted by the client - during connection establishment. - - - recv_oct - Octets received. - - - recv_cnt - Packets received. - - - send_oct - Octets send. - - - send_cnt - Packets sent. - - - send_pend - Send queue size. - - - - If no connectioninfoitems are specified then user, peer - address, peer port and connection state are displayed. - - - - For example: - - rabbitmqctl list_connections send_pend port - - This command displays the send queue size and server port for each - connection. - - - - - - list_channels channelinfoitem ... - - - Returns information on all current channels, the logical - containers executing most AMQP commands. This includes - channels that are part of ordinary AMQP connections, and - channels created by various plug-ins and other extensions. - - - The channelinfoitem parameter is used to - indicate which channel information items to include in the - results. The column order in the results will match the - order of the parameters. - channelinfoitem can take any value from the list - that follows: - - - - - pid - Id of the Erlang process associated with the connection. - - - connection - Id of the Erlang process associated with the connection - to which the channel belongs. - - - number - The number of the channel, which uniquely identifies it within - a connection. - - - user - Username associated with the channel. - - - vhost - Virtual host in which the channel operates. - - - transactional - True if the channel is in transactional mode, false otherwise. - - - confirm - True if the channel is in confirm mode, false otherwise. - - - consumer_count - Number of logical AMQP consumers retrieving messages via - the channel. - - - messages_unacknowledged - Number of messages delivered via this channel but not - yet acknowledged. - - - messages_uncommitted - Number of messages received in an as yet - uncommitted transaction. - - - acks_uncommitted - Number of acknowledgements received in an as yet - uncommitted transaction. - - - messages_unconfirmed - Number of published messages not yet - confirmed. On channels not in confirm mode, this - remains 0. - - - prefetch_count - QoS prefetch count limit in force, 0 if unlimited. - - - client_flow_blocked - True if the client issued a - channel.flow{active=false} - command, blocking the server from delivering - messages to the channel's consumers. - - - - - If no channelinfoitems are specified then pid, - user, consumer_count, and messages_unacknowledged are assumed. - - - - For example: - - rabbitmqctl list_channels connection messages_unacknowledged - - This command displays the connection process and count - of unacknowledged messages for each channel. - - - - - - list_consumers -p vhostpath - - - List consumers, i.e. subscriptions to a queue's message - stream. Each line printed shows, separated by tab - characters, the name of the queue subscribed to, the id of - the channel process via which the subscription was created - and is managed, the consumer tag which uniquely identifies - the subscription within a channel, and a boolean - indicating whether acknowledgements are expected for - messages delivered to this consumer. - - - The output is a list of rows containing, in order, the queue name, - channel process id, consumer tag, and a boolean indicating whether - acknowledgements are expected from the consumer. - - - - - - status - - - Displays broker status information such as the running - applications on the current Erlang node, RabbitMQ and - Erlang versions and OS name. (See - the cluster_status command to find - out which nodes are clustered and running.) - - For example: - rabbitmqctl status - - This command displays information about the RabbitMQ - broker. - - - - - - environment - - - Display the name and value of each variable in the - application environment. - - - - - - report - - - Generate a server status report containing a - concatenation of all server status information for - support purposes. The output should be redirected to a - file when accompanying a support request. - - - For example: - - rabbitmqctl report > server_report.txt - - This command creates a server report which may be - attached to a support request email. - - - - - - - - Message Tracing - - - trace_on -p vhost - - - - vhost - The name of the virtual host for which to start tracing. - - - - Starts tracing. - - - - - - trace_off -p vhost - - - - vhost - The name of the virtual host for which to stop tracing. - - - - Stops tracing. - - - - - - - - - diff --git a/docs/remove-namespaces.xsl b/docs/remove-namespaces.xsl deleted file mode 100644 index 7f7f3c12..00000000 --- a/docs/remove-namespaces.xsl +++ /dev/null @@ -1,18 +0,0 @@ - - - - - - - - - - - - - - - diff --git a/docs/usage.xsl b/docs/usage.xsl deleted file mode 100644 index 586f8303..00000000 --- a/docs/usage.xsl +++ /dev/null @@ -1,74 +0,0 @@ - - - - - - - - - - -%% Generated, do not edit! --module(). --export([usage/0]). -usage() -> %QUOTE%Usage: - - - - - - - - - - - - Options: - - - - - , - - - - - - - - - - - - - Commands: - - - - - - - - - -%QUOTE%. - - - -<> must be a member of the list [, ]. - - - - - - - - - -[] -<> - - diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in deleted file mode 100644 index 65a3269a..00000000 --- a/ebin/rabbit_app.in +++ /dev/null @@ -1,45 +0,0 @@ -{application, rabbit, %% -*- erlang -*- - [{description, "RabbitMQ"}, - {id, "RabbitMQ"}, - {vsn, "%%VSN%%"}, - {modules, []}, - {registered, [rabbit_amqqueue_sup, - rabbit_log, - rabbit_node_monitor, - rabbit_router, - rabbit_sup, - rabbit_tcp_client_sup, - rabbit_direct_client_sup]}, - {applications, [kernel, stdlib, sasl, mnesia, os_mon]}, -%% we also depend on crypto, public_key and ssl but they shouldn't be -%% in here as we don't actually want to start it - {mod, {rabbit, []}}, - {env, [{tcp_listeners, [5672]}, - {ssl_listeners, []}, - {ssl_options, []}, - {vm_memory_high_watermark, 0.4}, - {msg_store_index_module, rabbit_msg_store_ets_index}, - {backing_queue_module, rabbit_variable_queue}, - {frame_max, 131072}, - {msg_store_file_size_limit, 16777216}, - {queue_index_max_journal_entries, 262144}, - {default_user, <<"guest">>}, - {default_pass, <<"guest">>}, - {default_user_tags, [administrator]}, - {default_vhost, <<"/">>}, - {default_permissions, [<<".*">>, <<".*">>, <<".*">>]}, - {cluster_nodes, []}, - {server_properties, []}, - {collect_statistics, none}, - {collect_statistics_interval, 5000}, - {auth_mechanisms, ['PLAIN', 'AMQPLAIN']}, - {auth_backends, [rabbit_auth_backend_internal]}, - {delegate_count, 16}, - {trace_vhosts, []}, - {tcp_listen_options, [binary, - {packet, raw}, - {reuseaddr, true}, - {backlog, 128}, - {nodelay, true}, - {exit_on_close, false}]} - ]}]}. diff --git a/generate_app b/generate_app deleted file mode 100644 index fb0eb1ea..00000000 --- a/generate_app +++ /dev/null @@ -1,16 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- - -main([InFile, OutFile | SrcDirs]) -> - Modules = [list_to_atom(filename:basename(F, ".erl")) || - SrcDir <- SrcDirs, - F <- filelib:wildcard("*.erl", SrcDir)], - {ok, [{application, Application, Properties}]} = file:consult(InFile), - NewProperties = - case proplists:get_value(modules, Properties) of - [] -> lists:keyreplace(modules, 1, Properties, {modules, Modules}); - _ -> Properties - end, - file:write_file( - OutFile, - io_lib:format("~p.~n", [{application, Application, NewProperties}])). diff --git a/generate_deps b/generate_deps deleted file mode 100644 index ddfca816..00000000 --- a/generate_deps +++ /dev/null @@ -1,57 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- --mode(compile). - -%% We expect the list of Erlang source and header files to arrive on -%% stdin, with the entries colon-separated. -main([TargetFile, EbinDir]) -> - ErlsAndHrls = [ string:strip(S,left) || - S <- string:tokens(io:get_line(""), ":\n")], - ErlFiles = [F || F <- ErlsAndHrls, lists:suffix(".erl", F)], - Modules = sets:from_list( - [list_to_atom(filename:basename(FileName, ".erl")) || - FileName <- ErlFiles]), - HrlFiles = [F || F <- ErlsAndHrls, lists:suffix(".hrl", F)], - IncludeDirs = lists:usort([filename:dirname(Path) || Path <- HrlFiles]), - Headers = sets:from_list(HrlFiles), - Deps = lists:foldl( - fun (Path, Deps1) -> - dict:store(Path, detect_deps(IncludeDirs, EbinDir, - Modules, Headers, Path), - Deps1) - end, dict:new(), ErlFiles), - {ok, Hdl} = file:open(TargetFile, [write, delayed_write]), - dict:fold( - fun (_Path, [], ok) -> - ok; - (Path, Dep, ok) -> - Module = filename:basename(Path, ".erl"), - ok = file:write(Hdl, [EbinDir, "/", Module, ".beam: ", - Path]), - ok = sets:fold(fun (E, ok) -> file:write(Hdl, [" ", E]) end, - ok, Dep), - file:write(Hdl, ["\n"]) - end, ok, Deps), - ok = file:write(Hdl, [TargetFile, ": ", escript:script_name(), "\n"]), - ok = file:sync(Hdl), - ok = file:close(Hdl). - -detect_deps(IncludeDirs, EbinDir, Modules, Headers, Path) -> - {ok, Forms} = epp:parse_file(Path, IncludeDirs, [{use_specs, true}]), - lists:foldl( - fun ({attribute, _LineNumber, Attribute, Behaviour}, Deps) - when Attribute =:= behaviour orelse Attribute =:= behavior -> - case sets:is_element(Behaviour, Modules) of - true -> sets:add_element( - [EbinDir, "/", atom_to_list(Behaviour), ".beam"], - Deps); - false -> Deps - end; - ({attribute, _LineNumber, file, {FileName, _LineNumber1}}, Deps) -> - case sets:is_element(FileName, Headers) of - true -> sets:add_element(FileName, Deps); - false -> Deps - end; - (_Form, Deps) -> - Deps - end, sets:new(), Forms). diff --git a/include/gm_specs.hrl b/include/gm_specs.hrl deleted file mode 100644 index ee29706e..00000000 --- a/include/gm_specs.hrl +++ /dev/null @@ -1,28 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --type(callback_result() :: 'ok' | {'stop', any()} | {'become', atom(), args()}). --type(args() :: any()). --type(members() :: [pid()]). - --spec(joined/2 :: (args(), members()) -> callback_result()). --spec(members_changed/3 :: (args(), members(), members()) -> callback_result()). --spec(handle_msg/3 :: (args(), pid(), any()) -> callback_result()). --spec(terminate/2 :: (args(), term()) -> any()). - --endif. diff --git a/include/rabbit.hrl b/include/rabbit.hrl deleted file mode 100644 index ac6399c6..00000000 --- a/include/rabbit.hrl +++ /dev/null @@ -1,101 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --record(user, {username, - tags, - auth_backend, %% Module this user came from - impl %% Scratch space for that module - }). - --record(internal_user, {username, password_hash, tags}). --record(permission, {configure, write, read}). --record(user_vhost, {username, virtual_host}). --record(user_permission, {user_vhost, permission}). - --record(vhost, {virtual_host, dummy}). - --record(connection, {protocol, user, timeout_sec, frame_max, vhost, - client_properties, capabilities}). - --record(content, - {class_id, - properties, %% either 'none', or a decoded record/tuple - properties_bin, %% either 'none', or an encoded properties binary - %% Note: at most one of properties and properties_bin can be - %% 'none' at once. - protocol, %% The protocol under which properties_bin was encoded - payload_fragments_rev %% list of binaries, in reverse order (!) - }). - --record(resource, {virtual_host, kind, name}). - --record(exchange, {name, type, durable, auto_delete, internal, arguments, - scratch}). --record(exchange_serial, {name, next}). - --record(amqqueue, {name, durable, auto_delete, exclusive_owner = none, - arguments, pid, slave_pids, mirror_nodes}). - -%% mnesia doesn't like unary records, so we add a dummy 'value' field --record(route, {binding, value = const}). --record(reverse_route, {reverse_binding, value = const}). - --record(binding, {source, key, destination, args = []}). --record(reverse_binding, {destination, key, source, args = []}). - --record(topic_trie_edge, {trie_edge, node_id}). --record(topic_trie_binding, {trie_binding, value = const}). - --record(trie_edge, {exchange_name, node_id, word}). --record(trie_binding, {exchange_name, node_id, destination}). - --record(listener, {node, protocol, host, ip_address, port}). - --record(basic_message, {exchange_name, routing_keys = [], content, id, - is_persistent}). - --record(ssl_socket, {tcp, ssl}). --record(delivery, {mandatory, immediate, sender, message, msg_seq_no}). --record(amqp_error, {name, explanation = "", method = none}). - --record(event, {type, props, timestamp}). - --record(message_properties, {expiry, needs_confirming = false}). - -%%---------------------------------------------------------------------------- - --define(COPYRIGHT_MESSAGE, "Copyright (C) 2007-2011 VMware, Inc."). --define(INFORMATION_MESSAGE, "Licensed under the MPL. See http://www.rabbitmq.com/"). --define(PROTOCOL_VERSION, "AMQP 0-9-1 / 0-9 / 0-8"). --define(ERTS_MINIMUM, "5.6.3"). - --define(MAX_WAIT, 16#ffffffff). - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --define(ROUTING_HEADERS, [<<"CC">>, <<"BCC">>]). --define(DELETED_HEADER, <<"BCC">>). - --ifdef(debug). --define(LOGDEBUG0(F), rabbit_log:debug(F)). --define(LOGDEBUG(F,A), rabbit_log:debug(F,A)). --define(LOGMESSAGE(D,C,M,Co), rabbit_log:message(D,C,M,Co)). --else. --define(LOGDEBUG0(F), ok). --define(LOGDEBUG(F,A), ok). --define(LOGMESSAGE(D,C,M,Co), ok). --endif. diff --git a/include/rabbit_auth_backend_spec.hrl b/include/rabbit_auth_backend_spec.hrl deleted file mode 100644 index 803bb75c..00000000 --- a/include/rabbit_auth_backend_spec.hrl +++ /dev/null @@ -1,31 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). - --spec(check_user_login/2 :: (rabbit_types:username(), [term()]) -> - {'ok', rabbit_types:user()} | - {'refused', string(), [any()]} | - {'error', any()}). --spec(check_vhost_access/2 :: (rabbit_types:user(), rabbit_types:vhost()) -> - boolean() | {'error', any()}). --spec(check_resource_access/3 :: (rabbit_types:user(), - rabbit_types:r(atom()), - rabbit_access_control:permission_atom()) -> - boolean() | {'error', any()}). --endif. diff --git a/include/rabbit_auth_mechanism_spec.hrl b/include/rabbit_auth_mechanism_spec.hrl deleted file mode 100644 index 614a3eed..00000000 --- a/include/rabbit_auth_mechanism_spec.hrl +++ /dev/null @@ -1,28 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(should_offer/1 :: (rabbit_net:socket()) -> boolean()). --spec(init/1 :: (rabbit_net:socket()) -> any()). --spec(handle_response/2 :: (binary(), any()) -> - {'ok', rabbit_types:user()} | - {'challenge', binary(), any()} | - {'protocol_error', string(), [any()]} | - {'refused', string(), [any()]}). - --endif. diff --git a/include/rabbit_backing_queue_spec.hrl b/include/rabbit_backing_queue_spec.hrl deleted file mode 100644 index ee102f5e..00000000 --- a/include/rabbit_backing_queue_spec.hrl +++ /dev/null @@ -1,68 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --type(fetch_result(Ack) :: - ('empty' | - %% Message, IsDelivered, AckTag, Remaining_Len - {rabbit_types:basic_message(), boolean(), Ack, non_neg_integer()})). --type(is_durable() :: boolean()). --type(attempt_recovery() :: boolean()). --type(purged_msg_count() :: non_neg_integer()). --type(confirm_required() :: boolean()). --type(message_properties_transformer() :: - fun ((rabbit_types:message_properties()) - -> rabbit_types:message_properties())). --type(async_callback() :: fun ((atom(), fun ((atom(), state()) -> state())) -> 'ok')). - --spec(start/1 :: ([rabbit_amqqueue:name()]) -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(init/3 :: (rabbit_types:amqqueue(), attempt_recovery(), - async_callback()) -> state()). --spec(terminate/2 :: (any(), state()) -> state()). --spec(delete_and_terminate/2 :: (any(), state()) -> state()). --spec(purge/1 :: (state()) -> {purged_msg_count(), state()}). --spec(publish/4 :: (rabbit_types:basic_message(), - rabbit_types:message_properties(), pid(), state()) -> - state()). --spec(publish_delivered/5 :: (true, rabbit_types:basic_message(), - rabbit_types:message_properties(), pid(), state()) - -> {ack(), state()}; - (false, rabbit_types:basic_message(), - rabbit_types:message_properties(), pid(), state()) - -> {undefined, state()}). --spec(drain_confirmed/1 :: (state()) -> {[rabbit_guid:guid()], state()}). --spec(dropwhile/2 :: - (fun ((rabbit_types:message_properties()) -> boolean()), state()) - -> state()). --spec(fetch/2 :: (true, state()) -> {fetch_result(ack()), state()}; - (false, state()) -> {fetch_result(undefined), state()}). --spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). --spec(requeue/3 :: ([ack()], message_properties_transformer(), state()) - -> {[rabbit_guid:guid()], state()}). --spec(len/1 :: (state()) -> non_neg_integer()). --spec(is_empty/1 :: (state()) -> boolean()). --spec(set_ram_duration_target/2 :: - (('undefined' | 'infinity' | number()), state()) -> state()). --spec(ram_duration/1 :: (state()) -> {number(), state()}). --spec(needs_timeout/1 :: (state()) -> 'false' | 'timed' | 'idle'). --spec(timeout/1 :: (state()) -> state()). --spec(handle_pre_hibernate/1 :: (state()) -> state()). --spec(status/1 :: (state()) -> [{atom(), any()}]). --spec(invoke/3 :: (atom(), fun ((atom(), A) -> A), state()) -> state()). --spec(is_duplicate/2 :: - (rabbit_types:basic_message(), state()) -> - {'false'|'published'|'discarded', state()}). --spec(discard/3 :: (rabbit_types:basic_message(), pid(), state()) -> state()). diff --git a/include/rabbit_exchange_type_spec.hrl b/include/rabbit_exchange_type_spec.hrl deleted file mode 100644 index f6283ef7..00000000 --- a/include/rabbit_exchange_type_spec.hrl +++ /dev/null @@ -1,38 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --ifdef(use_specs). - --type(tx() :: 'transaction' | 'none'). --type(serial() :: pos_integer() | tx()). - --spec(description/0 :: () -> [{atom(), any()}]). --spec(serialise_events/0 :: () -> boolean()). --spec(route/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> rabbit_router:match_result()). --spec(validate/1 :: (rabbit_types:exchange()) -> 'ok'). --spec(create/2 :: (tx(), rabbit_types:exchange()) -> 'ok'). --spec(delete/3 :: (tx(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(add_binding/3 :: (serial(), rabbit_types:exchange(), - rabbit_types:binding()) -> 'ok'). --spec(remove_bindings/3 :: (serial(), rabbit_types:exchange(), - [rabbit_types:binding()]) -> 'ok'). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). - --endif. diff --git a/include/rabbit_msg_store.hrl b/include/rabbit_msg_store.hrl deleted file mode 100644 index e9150a97..00000000 --- a/include/rabbit_msg_store.hrl +++ /dev/null @@ -1,25 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit.hrl"). - --ifdef(use_specs). - --type(msg() :: any()). - --endif. - --record(msg_location, {msg_id, ref_count, file, offset, total_size}). diff --git a/include/rabbit_msg_store_index.hrl b/include/rabbit_msg_store_index.hrl deleted file mode 100644 index 2ae5b000..00000000 --- a/include/rabbit_msg_store_index.hrl +++ /dev/null @@ -1,45 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --include("rabbit_msg_store.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(dir() :: any()). --type(index_state() :: any()). --type(keyvalue() :: any()). --type(fieldpos() :: non_neg_integer()). --type(fieldvalue() :: any()). - --spec(new/1 :: (dir()) -> index_state()). --spec(recover/1 :: (dir()) -> rabbit_types:ok_or_error2(index_state(), any())). --spec(lookup/2 :: - (rabbit_types:msg_id(), index_state()) -> ('not_found' | keyvalue())). --spec(insert/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(update_fields/3 :: (rabbit_types:msg_id(), ({fieldpos(), fieldvalue()} | - [{fieldpos(), fieldvalue()}]), - index_state()) -> 'ok'). --spec(delete/2 :: (rabbit_types:msg_id(), index_state()) -> 'ok'). --spec(delete_object/2 :: (keyvalue(), index_state()) -> 'ok'). --spec(delete_by_file/2 :: (fieldvalue(), index_state()) -> 'ok'). --spec(terminate/1 :: (index_state()) -> any()). - --endif. - -%%---------------------------------------------------------------------------- diff --git a/packaging/RPMS/Fedora/Makefile b/packaging/RPMS/Fedora/Makefile deleted file mode 100644 index c67d8fd6..00000000 --- a/packaging/RPMS/Fedora/Makefile +++ /dev/null @@ -1,49 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -TOP_DIR=$(shell pwd) -#Under debian we do not want to check build dependencies, since that -#only checks build-dependencies using rpms, not debs -DEFINES=--define '_topdir $(TOP_DIR)' --define '_tmppath $(TOP_DIR)/tmp' --define '_sysconfdir /etc' --define '_localstatedir /var' - -ifndef RPM_OS -RPM_OS=fedora -endif - -ifeq "$(RPM_OS)" "suse" -REQUIRES=/sbin/chkconfig /sbin/service -OS_DEFINES=--define '_initrddir /etc/init.d' --define 'dist .suse' -else -REQUIRES=chkconfig initscripts -OS_DEFINES=--define '_initrddir /etc/rc.d/init.d' -endif - -rpms: clean server - -prepare: - mkdir -p BUILD SOURCES SPECS SRPMS RPMS tmp - cp $(TARBALL_DIR)/$(TARBALL) SOURCES - cp rabbitmq-server.spec SPECS - sed -i 's|%%VERSION%%|$(VERSION)|;s|%%REQUIRES%%|$(REQUIRES)|' \ - SPECS/rabbitmq-server.spec - - cp ${COMMON_DIR}/* SOURCES/ - sed -i \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=/var/lock/subsys/$$NAME|' \ - SOURCES/rabbitmq-server.init -ifeq "$(RPM_OS)" "fedora" -# Fedora says that only vital services should have Default-Start - sed -i -e '/^# Default-Start:/d;/^# Default-Stop:/d' \ - SOURCES/rabbitmq-server.init -endif - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - SOURCES/rabbitmq-script-wrapper - cp rabbitmq-server.logrotate SOURCES/rabbitmq-server.logrotate - -server: prepare - rpmbuild -ba --nodeps SPECS/rabbitmq-server.spec $(DEFINES) $(OS_DEFINES) - -clean: - rm -rf SOURCES SPECS RPMS SRPMS BUILD tmp diff --git a/packaging/RPMS/Fedora/rabbitmq-server.logrotate b/packaging/RPMS/Fedora/rabbitmq-server.logrotate deleted file mode 100644 index 6b657614..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /sbin/service rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec deleted file mode 100644 index ffc826eb..00000000 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ /dev/null @@ -1,205 +0,0 @@ -%define debug_package %{nil} - -Name: rabbitmq-server -Version: %%VERSION%% -Release: 1%{?dist} -License: MPLv1.1 -Group: Development/Libraries -Source: http://www.rabbitmq.com/releases/rabbitmq-server/v%{version}/%{name}-%{version}.tar.gz -Source1: rabbitmq-server.init -Source2: rabbitmq-script-wrapper -Source3: rabbitmq-server.logrotate -Source4: rabbitmq-server.ocf -URL: http://www.rabbitmq.com/ -BuildArch: noarch -BuildRequires: erlang >= R12B-3, python-simplejson, xmlto, libxslt -Requires: erlang >= R12B-3, logrotate -BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-%{_arch}-root -Summary: The RabbitMQ server -Requires(post): %%REQUIRES%% -Requires(pre): %%REQUIRES%% - -%description -RabbitMQ is an implementation of AMQP, the emerging standard for high -performance enterprise messaging. The RabbitMQ server is a robust and -scalable implementation of an AMQP broker. - -# We want to install into /usr/lib, even on 64-bit platforms -%define _rabbit_libdir %{_exec_prefix}/lib/rabbitmq -%define _rabbit_erllibdir %{_rabbit_libdir}/lib/rabbitmq_server-%{version} -%define _rabbit_wrapper %{_builddir}/`basename %{S:2}` -%define _rabbit_server_ocf %{_builddir}/`basename %{S:4}` -%define _plugins_state_dir %{_localstatedir}/lib/rabbitmq/plugins - -%define _maindir %{buildroot}%{_rabbit_erllibdir} - -%prep -%setup -q - -%build -cp %{S:2} %{_rabbit_wrapper} -cp %{S:4} %{_rabbit_server_ocf} -make %{?_smp_mflags} - -%install -rm -rf %{buildroot} - -make install TARGET_DIR=%{_maindir} \ - SBIN_DIR=%{buildroot}%{_rabbit_libdir}/bin \ - MAN_DIR=%{buildroot}%{_mandir} - -mkdir -p %{buildroot}%{_localstatedir}/lib/rabbitmq/mnesia -mkdir -p %{buildroot}%{_localstatedir}/log/rabbitmq - -#Copy all necessary lib files etc. -install -p -D -m 0755 %{S:1} %{buildroot}%{_initrddir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmqctl -install -p -D -m 0755 %{_rabbit_wrapper} %{buildroot}%{_sbindir}/rabbitmq-server -install -p -D -m 0755 %{_rabbit_server_ocf} %{buildroot}%{_exec_prefix}/lib/ocf/resource.d/rabbitmq/rabbitmq-server - -install -p -D -m 0644 %{S:3} %{buildroot}%{_sysconfdir}/logrotate.d/rabbitmq-server - -mkdir -p %{buildroot}%{_sysconfdir}/rabbitmq - -rm %{_maindir}/LICENSE %{_maindir}/LICENSE-MPL-RabbitMQ %{_maindir}/INSTALL - -#Build the list of files -echo '%defattr(-,root,root, -)' >%{_builddir}/%{name}.files -find %{buildroot} -path %{buildroot}%{_sysconfdir} -prune -o '!' -type d -printf "/%%P\n" >>%{_builddir}/%{name}.files - -%pre - -if [ $1 -gt 1 ]; then - # Upgrade - stop previous instance of rabbitmq-server init.d script - /sbin/service rabbitmq-server stop -fi - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - groupadd -r rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - useradd -r -g rabbitmq -d %{_localstatedir}/lib/rabbitmq rabbitmq \ - -c "RabbitMQ messaging server" -fi - -%post -/sbin/chkconfig --add %{name} -if [ -f %{_sysconfdir}/rabbitmq/rabbitmq.conf ] && [ ! -f %{_sysconfdir}/rabbitmq/rabbitmq-env.conf ]; then - mv %{_sysconfdir}/rabbitmq/rabbitmq.conf %{_sysconfdir}/rabbitmq/rabbitmq-env.conf -fi - -%preun -if [ $1 = 0 ]; then - #Complete uninstall - /sbin/service rabbitmq-server stop - /sbin/chkconfig --del rabbitmq-server - - # We do not remove /var/log and /var/lib directories - # Leave rabbitmq user and group -fi - -# Clean out plugin activation state, both on uninstall and upgrade -rm -rf %{_plugins_state_dir} -for ext in rel script boot ; do - rm -f %{_rabbit_erllibdir}/ebin/rabbit.$ext -done - -%files -f ../%{name}.files -%defattr(-,root,root,-) -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/lib/rabbitmq -%attr(0750, rabbitmq, rabbitmq) %dir %{_localstatedir}/log/rabbitmq -%dir %{_sysconfdir}/rabbitmq -%{_initrddir}/rabbitmq-server -%config(noreplace) %{_sysconfdir}/logrotate.d/rabbitmq-server -%doc LICENSE LICENSE-MPL-RabbitMQ - -%clean -rm -rf %{buildroot} - -%changelog -* Thu Jun 9 2011 jerryk@vmware.com 2.5.0-1 -- New Upstream Release - -* Thu Apr 7 2011 Alexandru Scvortov 2.4.1-1 -- New Upstream Release - -* Tue Mar 22 2011 Alexandru Scvortov 2.4.0-1 -- New Upstream Release - -* Thu Feb 3 2011 simon@rabbitmq.com 2.3.1-1 -- New Upstream Release - -* Tue Feb 1 2011 simon@rabbitmq.com 2.3.0-1 -- New Upstream Release - -* Mon Nov 29 2010 rob@rabbitmq.com 2.2.0-1 -- New Upstream Release - -* Tue Oct 19 2010 vlad@rabbitmq.com 2.1.1-1 -- New Upstream Release - -* Tue Sep 14 2010 marek@rabbitmq.com 2.1.0-1 -- New Upstream Release - -* Mon Aug 23 2010 mikeb@rabbitmq.com 2.0.0-1 -- New Upstream Release - -* Wed Jul 14 2010 Emile Joubert 1.8.1-1 -- New Upstream Release - -* Tue Jun 15 2010 Matthew Sackman 1.8.0-1 -- New Upstream Release - -* Mon Feb 15 2010 Matthew Sackman 1.7.2-1 -- New Upstream Release - -* Fri Jan 22 2010 Matthew Sackman 1.7.1-1 -- New Upstream Release - -* Mon Oct 5 2009 David Wragg 1.7.0-1 -- New upstream release - -* Wed Jun 17 2009 Matthias Radestock 1.6.0-1 -- New upstream release - -* Tue May 19 2009 Matthias Radestock 1.5.5-1 -- Maintenance release for the 1.5.x series - -* Mon Apr 6 2009 Matthias Radestock 1.5.4-1 -- Maintenance release for the 1.5.x series - -* Tue Feb 24 2009 Tony Garnock-Jones 1.5.3-1 -- Maintenance release for the 1.5.x series - -* Mon Feb 23 2009 Tony Garnock-Jones 1.5.2-1 -- Maintenance release for the 1.5.x series - -* Mon Jan 19 2009 Ben Hood <0x6e6562@gmail.com> 1.5.1-1 -- Maintenance release for the 1.5.x series - -* Wed Dec 17 2008 Matthias Radestock 1.5.0-1 -- New upstream release - -* Thu Jul 24 2008 Tony Garnock-Jones 1.4.0-1 -- New upstream release - -* Mon Mar 3 2008 Adrien Pierard 1.3.0-1 -- New upstream release - -* Wed Sep 26 2007 Simon MacMullen 1.2.0-1 -- New upstream release - -* Wed Aug 29 2007 Simon MacMullen 1.1.1-1 -- New upstream release - -* Mon Jul 30 2007 Simon MacMullen 1.1.0-1.alpha -- New upstream release - -* Tue Jun 12 2007 Hubert Plociniczak 1.0.0-1.20070607 -- Building from source tarball, added starting script, stopping - -* Mon May 21 2007 Hubert Plociniczak 1.0.0-1.alpha -- Initial build of server library of RabbitMQ package diff --git a/packaging/common/rabbitmq-script-wrapper b/packaging/common/rabbitmq-script-wrapper deleted file mode 100644 index 23d2a06c..00000000 --- a/packaging/common/rabbitmq-script-wrapper +++ /dev/null @@ -1,42 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Escape spaces and quotes, because shell is revolting. -for arg in "$@" ; do - # Escape quotes in parameters, so that they're passed through cleanly. - arg=$(sed -e 's/"/\\"/g' <<-END - $arg - END - ) - CMDLINE="${CMDLINE} \"${arg}\"" -done - -cd /var/lib/rabbitmq - -SCRIPT=`basename $0` - -if [ `id -u` = 0 ] ; then - @SU_RABBITMQ_SH_C@ "/usr/lib/rabbitmq/bin/${SCRIPT} ${CMDLINE}" -elif [ `id -u` = `id -u rabbitmq` ] ; then - /usr/lib/rabbitmq/bin/${SCRIPT} "$@" -else - /usr/lib/rabbitmq/bin/${SCRIPT} - echo - echo "Only root or rabbitmq should run ${SCRIPT}" - echo - exit 1 -fi diff --git a/packaging/common/rabbitmq-server.init b/packaging/common/rabbitmq-server.init deleted file mode 100644 index d8a7a94d..00000000 --- a/packaging/common/rabbitmq-server.init +++ /dev/null @@ -1,154 +0,0 @@ -#!/bin/sh -# -# rabbitmq-server RabbitMQ broker -# -# chkconfig: - 80 05 -# description: Enable AMQP service provided by RabbitMQ -# - -### BEGIN INIT INFO -# Provides: rabbitmq-server -# Required-Start: $remote_fs $network -# Required-Stop: $remote_fs $network -# Default-Start: 3 4 5 -# Default-Stop: 0 1 2 6 -# Description: RabbitMQ broker -# Short-Description: Enable AMQP service provided by RabbitMQ broker -### END INIT INFO - -PATH=/sbin:/usr/sbin:/bin:/usr/bin -NAME=rabbitmq-server -DAEMON=/usr/sbin/${NAME} -CONTROL=/usr/sbin/rabbitmqctl -DESC=rabbitmq-server -USER=rabbitmq -ROTATE_SUFFIX= -INIT_LOG_DIR=/var/log/rabbitmq - -LOCK_FILE= # This is filled in when building packages - -test -x $DAEMON || exit 0 -test -x $CONTROL || exit 0 - -RETVAL=0 -set -e - -start_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - echo RabbitMQ is currently running - else - RETVAL=0 - set +e - setsid sh -c "$DAEMON > ${INIT_LOG_DIR}/startup_log \ - 2> ${INIT_LOG_DIR}/startup_err" & - $CONTROL wait >/dev/null 2>&1 - RETVAL=$? - set -e - case "$RETVAL" in - 0) - echo SUCCESS - if [ -n "$LOCK_FILE" ] ; then - touch $LOCK_FILE - fi - ;; - *) - echo FAILED - check ${INIT_LOG_DIR}/startup_\{log, _err\} - RETVAL=1 - ;; - esac - fi -} - -stop_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - set +e - $CONTROL stop > ${INIT_LOG_DIR}/shutdown_log 2> ${INIT_LOG_DIR}/shutdown_err - RETVAL=$? - set -e - if [ $RETVAL = 0 ] ; then - if [ -n "$LOCK_FILE" ] ; then - rm -f $LOCK_FILE - fi - else - echo FAILED - check ${INIT_LOG_DIR}/shutdown_log, _err - fi - else - echo RabbitMQ is not running - RETVAL=0 - fi -} - -status_rabbitmq() { - set +e - if [ "$1" != "quiet" ] ; then - $CONTROL status 2>&1 - else - $CONTROL status > /dev/null 2>&1 - fi - if [ $? != 0 ] ; then - RETVAL=3 - fi - set -e -} - -rotate_logs_rabbitmq() { - set +e - $CONTROL rotate_logs ${ROTATE_SUFFIX} - if [ $? != 0 ] ; then - RETVAL=1 - fi - set -e -} - -restart_running_rabbitmq () { - status_rabbitmq quiet - if [ $RETVAL = 0 ] ; then - restart_rabbitmq - else - echo RabbitMQ is not runnning - RETVAL=0 - fi -} - -restart_rabbitmq() { - stop_rabbitmq - start_rabbitmq -} - -case "$1" in - start) - echo -n "Starting $DESC: " - start_rabbitmq - echo "$NAME." - ;; - stop) - echo -n "Stopping $DESC: " - stop_rabbitmq - echo "$NAME." - ;; - status) - status_rabbitmq - ;; - rotate-logs) - echo -n "Rotating log files for $DESC: " - rotate_logs_rabbitmq - ;; - force-reload|reload|restart) - echo -n "Restarting $DESC: " - restart_rabbitmq - echo "$NAME." - ;; - try-restart) - echo -n "Restarting $DESC: " - restart_running_rabbitmq - echo "$NAME." - ;; - *) - echo "Usage: $0 {start|stop|status|rotate-logs|restart|condrestart|try-restart|reload|force-reload}" >&2 - RETVAL=1 - ;; -esac - -exit $RETVAL diff --git a/packaging/common/rabbitmq-server.ocf b/packaging/common/rabbitmq-server.ocf deleted file mode 100755 index d58c48ed..00000000 --- a/packaging/common/rabbitmq-server.ocf +++ /dev/null @@ -1,341 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -## -## OCF Resource Agent compliant rabbitmq-server resource script. -## - -## OCF instance parameters -## OCF_RESKEY_server -## OCF_RESKEY_ctl -## OCF_RESKEY_nodename -## OCF_RESKEY_ip -## OCF_RESKEY_port -## OCF_RESKEY_config_file -## OCF_RESKEY_log_base -## OCF_RESKEY_mnesia_base -## OCF_RESKEY_server_start_args - -####################################################################### -# Initialization: - -: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/heartbeat} -. ${OCF_FUNCTIONS_DIR}/.ocf-shellfuncs - -####################################################################### - -OCF_RESKEY_server_default="/usr/sbin/rabbitmq-server" -OCF_RESKEY_ctl_default="/usr/sbin/rabbitmqctl" -OCF_RESKEY_nodename_default="rabbit@localhost" -OCF_RESKEY_log_base_default="/var/log/rabbitmq" -: ${OCF_RESKEY_server=${OCF_RESKEY_server_default}} -: ${OCF_RESKEY_ctl=${OCF_RESKEY_ctl_default}} -: ${OCF_RESKEY_nodename=${OCF_RESKEY_nodename_default}} -: ${OCF_RESKEY_log_base=${OCF_RESKEY_log_base_default}} - -meta_data() { - cat < - - -1.0 - - -Resource agent for RabbitMQ-server - - -Resource agent for RabbitMQ-server - - - - -The path to the rabbitmq-server script - -Path to rabbitmq-server - - - - - -The path to the rabbitmqctl script - -Path to rabbitmqctl - - - - - -The node name for rabbitmq-server - -Node name - - - - - -The IP address for rabbitmq-server to listen on - -IP Address - - - - - -The IP Port for rabbitmq-server to listen on - -IP Port - - - - - -Location of the config file (without the .config suffix) - -Config file path (without the .config suffix) - - - - - -Location of the directory under which logs will be created - -Log base path - - - - - -Location of the directory under which mnesia will store data - -Mnesia base path - - - - - -Additional arguments provided to the server on startup - -Server start arguments - - - - - - - - - - - - - - -END -} - -rabbit_usage() { - cat < /dev/null 2> /dev/null - rc=$? - case "$rc" in - 0) - ocf_log debug "RabbitMQ server is running normally" - return $OCF_SUCCESS - ;; - 2) - ocf_log debug "RabbitMQ server is not running" - return $OCF_NOT_RUNNING - ;; - *) - ocf_log err "Unexpected return from rabbitmqctl $NODENAME_ARG $action: $rc" - exit $OCF_ERR_GENERIC - esac -} - -rabbit_start() { - local rc - - if rabbit_status; then - ocf_log info "Resource already running." - return $OCF_SUCCESS - fi - - export_vars - - setsid sh -c "$RABBITMQ_SERVER > ${RABBITMQ_LOG_BASE}/startup_log 2> ${RABBITMQ_LOG_BASE}/startup_err" & - - # Wait for the server to come up. - # Let the CRM/LRM time us out if required - rabbit_wait - rc=$? - if [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server start failed: $rc" - exit $OCF_ERR_GENERIC - fi - - return $OCF_SUCCESS -} - -rabbit_stop() { - local rc - - if ! rabbit_status; then - ocf_log info "Resource not running." - return $OCF_SUCCESS - fi - - $RABBITMQ_CTL stop - rc=$? - - if [ "$rc" != 0 ]; then - ocf_log err "rabbitmq-server stop command failed: $RABBITMQ_CTL stop, $rc" - return $rc - fi - - # Spin waiting for the server to shut down. - # Let the CRM/LRM time us out if required - stop_wait=1 - while [ $stop_wait = 1 ]; do - rabbit_status - rc=$? - if [ "$rc" = $OCF_NOT_RUNNING ]; then - stop_wait=0 - break - elif [ "$rc" != $OCF_SUCCESS ]; then - ocf_log info "rabbitmq-server stop failed: $rc" - exit $OCF_ERR_GENERIC - fi - sleep 1 - done - - return $OCF_SUCCESS -} - -rabbit_monitor() { - rabbit_status - return $? -} - -case $__OCF_ACTION in - meta-data) - meta_data - exit $OCF_SUCCESS - ;; - usage|help) - rabbit_usage - exit $OCF_SUCCESS - ;; -esac - -if ocf_is_probe; then - rabbit_validate_partial -else - rabbit_validate_full -fi - -case $__OCF_ACTION in - start) - rabbit_start - ;; - stop) - rabbit_stop - ;; - status|monitor) - rabbit_monitor - ;; - validate-all) - exit $OCF_SUCCESS - ;; - *) - rabbit_usage - exit $OCF_ERR_UNIMPLEMENTED - ;; -esac - -exit $? diff --git a/packaging/debs/Debian/Makefile b/packaging/debs/Debian/Makefile deleted file mode 100644 index 38c81134..00000000 --- a/packaging/debs/Debian/Makefile +++ /dev/null @@ -1,45 +0,0 @@ -TARBALL_DIR=../../../dist -TARBALL=$(notdir $(wildcard $(TARBALL_DIR)/rabbitmq-server-[0-9.]*.tar.gz)) -COMMON_DIR=../../common -VERSION=$(shell echo $(TARBALL) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -DEBIAN_ORIG_TARBALL=$(shell echo $(TARBALL) | sed -e 's:\(.*\)-\(.*\)\(\.tar\.gz\):\1_\2\.orig\3:g') -UNPACKED_DIR=rabbitmq-server-$(VERSION) -PACKAGENAME=rabbitmq-server -SIGNING_KEY_ID=056E8E56 - -ifneq "$(UNOFFICIAL_RELEASE)" "" - SIGNING=-us -uc -else - SIGNING=-k$(SIGNING_KEY_ID) -endif - -all: - @echo 'Please choose a target from the Makefile.' - -package: clean - cp $(TARBALL_DIR)/$(TARBALL) $(DEBIAN_ORIG_TARBALL) - tar -zxf $(DEBIAN_ORIG_TARBALL) - cp -r debian $(UNPACKED_DIR) - cp $(COMMON_DIR)/* $(UNPACKED_DIR)/debian/ -# Debian and descendants differ from most other distros in that -# runlevel 2 should start network services. - sed -i \ - -e 's|^LOCK_FILE=.*$$|LOCK_FILE=|' \ - -e 's|^\(# Default-Start:\).*$$|\1 2 3 4 5|' \ - -e 's|^\(# Default-Stop:\).*$$|\1 0 1 6|' \ - $(UNPACKED_DIR)/debian/rabbitmq-server.init - sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ - $(UNPACKED_DIR)/debian/rabbitmq-script-wrapper - chmod a+x $(UNPACKED_DIR)/debian/rules - UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) - cd $(UNPACKED_DIR); GNUPGHOME=$(GNUPG_PATH)/.gnupg dpkg-buildpackage -rfakeroot $(SIGNING) - rm -rf $(UNPACKED_DIR) - -clean: - rm -rf $(UNPACKED_DIR) - rm -f $(PACKAGENAME)_*.tar.gz - rm -f $(PACKAGENAME)_*.diff.gz - rm -f $(PACKAGENAME)_*.dsc - rm -f $(PACKAGENAME)_*_*.changes - rm -f $(PACKAGENAME)_*_*.deb diff --git a/packaging/debs/Debian/check-changelog.sh b/packaging/debs/Debian/check-changelog.sh deleted file mode 100755 index ff25e648..00000000 --- a/packaging/debs/Debian/check-changelog.sh +++ /dev/null @@ -1,29 +0,0 @@ -#!/bin/sh - -PACKAGE_NAME=$1 -cd $2 - -CHANGELOG_VERSION=$(dpkg-parsechangelog | sed -n 's/^Version: \(.*\)-[^-]*$/\1/p') - -if [ "${CHANGELOG_VERSION}" != "${VERSION}" ]; then - if [ -n "${UNOFFICIAL_RELEASE}" ]; then - echo "${PACKAGE_NAME} (${VERSION}-1) unstable; urgency=low" > debian/changelog.tmp - echo >> debian/changelog.tmp - echo " * Unofficial release" >> debian/changelog.tmp - echo >> debian/changelog.tmp - echo " -- Nobody $(date -R)" >> debian/changelog.tmp - echo >> debian/changelog.tmp - cat debian/changelog >> debian/changelog.tmp - mv -f debian/changelog.tmp debian/changelog - - exit 0 - else - echo - echo There is no entry in debian/changelog for version ${VERSION}! - echo Please create a changelog entry, or set the variable - echo UNOFFICIAL_RELEASE to automatically create one. - echo - - exit 1 - fi -fi diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog deleted file mode 100644 index 1cab4235..00000000 --- a/packaging/debs/Debian/debian/changelog +++ /dev/null @@ -1,174 +0,0 @@ -rabbitmq-server (2.5.0-1) lucid; urgency=low - - * New Upstream Release - - -- Thu, 09 Jun 2011 07:20:29 -0700 - -rabbitmq-server (2.4.1-1) lucid; urgency=low - - * New Upstream Release - - -- Alexandru Scvortov Thu, 07 Apr 2011 16:49:22 +0100 - -rabbitmq-server (2.4.0-1) lucid; urgency=low - - * New Upstream Release - - -- Alexandru Scvortov Tue, 22 Mar 2011 17:34:31 +0000 - -rabbitmq-server (2.3.1-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Thu, 03 Feb 2011 12:43:56 +0000 - -rabbitmq-server (2.3.0-1) lucid; urgency=low - - * New Upstream Release - - -- Simon MacMullen Tue, 01 Feb 2011 12:52:16 +0000 - -rabbitmq-server (2.2.0-1) lucid; urgency=low - - * New Upstream Release - - -- Rob Harrop Mon, 29 Nov 2010 12:24:48 +0000 - -rabbitmq-server (2.1.1-1) lucid; urgency=low - - * New Upstream Release - - -- Vlad Alexandru Ionescu Tue, 19 Oct 2010 17:20:10 +0100 - -rabbitmq-server (2.1.0-1) lucid; urgency=low - - * New Upstream Release - - -- Marek Majkowski Tue, 14 Sep 2010 14:20:17 +0100 - -rabbitmq-server (2.0.0-1) karmic; urgency=low - - * New Upstream Release - - -- Michael Bridgen Mon, 23 Aug 2010 14:55:39 +0100 - -rabbitmq-server (1.8.1-1) lucid; urgency=low - - * New Upstream Release - - -- Emile Joubert Wed, 14 Jul 2010 15:05:24 +0100 - -rabbitmq-server (1.8.0-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Tue, 15 Jun 2010 12:48:48 +0100 - -rabbitmq-server (1.7.2-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Mon, 15 Feb 2010 15:54:47 +0000 - -rabbitmq-server (1.7.1-1) intrepid; urgency=low - - * New Upstream Release - - -- Matthew Sackman Fri, 22 Jan 2010 14:14:29 +0000 - -rabbitmq-server (1.7.0-1) intrepid; urgency=low - - * New Upstream Release - - -- David Wragg Mon, 05 Oct 2009 13:44:41 +0100 - -rabbitmq-server (1.6.0-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 16 Jun 2009 15:02:58 +0100 - -rabbitmq-server (1.5.5-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Tue, 19 May 2009 09:57:54 +0100 - -rabbitmq-server (1.5.4-1) hardy; urgency=low - - * New Upstream Release - - -- Matthias Radestock Mon, 06 Apr 2009 09:19:32 +0100 - -rabbitmq-server (1.5.3-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Tue, 24 Feb 2009 18:23:33 +0000 - -rabbitmq-server (1.5.2-1) hardy; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Mon, 23 Feb 2009 16:03:38 +0000 - -rabbitmq-server (1.5.1-1) hardy; urgency=low - - * New Upstream Release - - -- Simon MacMullen Mon, 19 Jan 2009 15:46:13 +0000 - -rabbitmq-server (1.5.0-1) testing; urgency=low - - * New Upstream Release - - -- Matthias Radestock Wed, 17 Dec 2008 18:23:47 +0000 - -rabbitmq-server (1.4.0-1) testing; urgency=low - - * New Upstream Release - - -- Tony Garnock-Jones Thu, 24 Jul 2008 13:21:48 +0100 - -rabbitmq-server (1.3.0-1) testing; urgency=low - - * New Upstream Release - - -- Adrien Pierard Mon, 03 Mar 2008 15:34:38 +0000 - -rabbitmq-server (1.2.0-2) testing; urgency=low - - * Fixed rabbitmqctl wrapper script - - -- Simon MacMullen Fri, 05 Oct 2007 11:55:00 +0100 - -rabbitmq-server (1.2.0-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 26 Sep 2007 11:49:26 +0100 - -rabbitmq-server (1.1.1-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Wed, 29 Aug 2007 12:03:15 +0100 - -rabbitmq-server (1.1.0-alpha-2) testing; urgency=low - - * Fixed erlang-nox dependency - - -- Simon MacMullen Thu, 02 Aug 2007 11:27:13 +0100 - -rabbitmq-server (1.1.0-alpha-1) testing; urgency=low - - * New upstream release - - -- Simon MacMullen Fri, 20 Jul 2007 18:17:33 +0100 - -rabbitmq-server (1.0.0-alpha-1) unstable; urgency=low - - * Initial release - - -- Tony Garnock-Jones Wed, 31 Jan 2007 19:06:33 +0000 - diff --git a/packaging/debs/Debian/debian/compat b/packaging/debs/Debian/debian/compat deleted file mode 100644 index 7ed6ff82..00000000 --- a/packaging/debs/Debian/debian/compat +++ /dev/null @@ -1 +0,0 @@ -5 diff --git a/packaging/debs/Debian/debian/control b/packaging/debs/Debian/debian/control deleted file mode 100644 index 45f5c5c4..00000000 --- a/packaging/debs/Debian/debian/control +++ /dev/null @@ -1,15 +0,0 @@ -Source: rabbitmq-server -Section: net -Priority: extra -Maintainer: RabbitMQ Team -Build-Depends: cdbs, debhelper (>= 5), erlang-dev, python-simplejson, xmlto, xsltproc -Standards-Version: 3.8.0 - -Package: rabbitmq-server -Architecture: all -Depends: erlang-nox (>= 1:12.b.3), adduser, logrotate, ${misc:Depends} -Description: An AMQP server written in Erlang - RabbitMQ is an implementation of AMQP, the emerging standard for high - performance enterprise messaging. The RabbitMQ server is a robust and - scalable implementation of an AMQP broker. -Homepage: http://www.rabbitmq.com/ diff --git a/packaging/debs/Debian/debian/copyright b/packaging/debs/Debian/debian/copyright deleted file mode 100755 index 7206bb9b..00000000 --- a/packaging/debs/Debian/debian/copyright +++ /dev/null @@ -1,502 +0,0 @@ -This package was debianized by Tony Garnock-Jones on -Wed, 3 Jan 2007 15:43:44 +0000. - -It was downloaded from http://www.rabbitmq.com/ - -The files codegen/amqp-rabbitmq-0.8.json and -codegen/amqp-rabbitmq-0.9.1.json are covered by the following terms: - - "Copyright (C) 2008-2011 VMware, Inc. - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this file (the Software), to deal in the - Software without restriction, including without limitation the - rights to use, copy, modify, merge, publish, distribute, - sublicense, and/or sell copies of the Software, and to permit - persons to whom the Software is furnished to do so, subject to - the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - OTHER DEALINGS IN THE SOFTWARE." - -The rest of this package is licensed under the Mozilla Public License 1.1 -Authors and Copyright are as described below: - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved. - - - MOZILLA PUBLIC LICENSE - Version 1.1 - - --------------- - -1. Definitions. - - 1.0.1. "Commercial Use" means distribution or otherwise making the - Covered Code available to a third party. - - 1.1. "Contributor" means each entity that creates or contributes to - the creation of Modifications. - - 1.2. "Contributor Version" means the combination of the Original - Code, prior Modifications used by a Contributor, and the Modifications - made by that particular Contributor. - - 1.3. "Covered Code" means the Original Code or Modifications or the - combination of the Original Code and Modifications, in each case - including portions thereof. - - 1.4. "Electronic Distribution Mechanism" means a mechanism generally - accepted in the software development community for the electronic - transfer of data. - - 1.5. "Executable" means Covered Code in any form other than Source - Code. - - 1.6. "Initial Developer" means the individual or entity identified - as the Initial Developer in the Source Code notice required by Exhibit - A. - - 1.7. "Larger Work" means a work which combines Covered Code or - portions thereof with code not governed by the terms of this License. - - 1.8. "License" means this document. - - 1.8.1. "Licensable" means having the right to grant, to the maximum - extent possible, whether at the time of the initial grant or - subsequently acquired, any and all of the rights conveyed herein. - - 1.9. "Modifications" means any addition to or deletion from the - substance or structure of either the Original Code or any previous - Modifications. When Covered Code is released as a series of files, a - Modification is: - A. Any addition to or deletion from the contents of a file - containing Original Code or previous Modifications. - - B. Any new file that contains any part of the Original Code or - previous Modifications. - - 1.10. "Original Code" means Source Code of computer software code - which is described in the Source Code notice required by Exhibit A as - Original Code, and which, at the time of its release under this - License is not already Covered Code governed by this License. - - 1.10.1. "Patent Claims" means any patent claim(s), now owned or - hereafter acquired, including without limitation, method, process, - and apparatus claims, in any patent Licensable by grantor. - - 1.11. "Source Code" means the preferred form of the Covered Code for - making modifications to it, including all modules it contains, plus - any associated interface definition files, scripts used to control - compilation and installation of an Executable, or source code - differential comparisons against either the Original Code or another - well known, available Covered Code of the Contributor's choice. The - Source Code can be in a compressed or archival form, provided the - appropriate decompression or de-archiving software is widely available - for no charge. - - 1.12. "You" (or "Your") means an individual or a legal entity - exercising rights under, and complying with all of the terms of, this - License or a future version of this License issued under Section 6.1. - For legal entities, "You" includes any entity which controls, is - controlled by, or is under common control with You. For purposes of - this definition, "control" means (a) the power, direct or indirect, - to cause the direction or management of such entity, whether by - contract or otherwise, or (b) ownership of more than fifty percent - (50%) of the outstanding shares or beneficial ownership of such - entity. - -2. Source Code License. - - 2.1. The Initial Developer Grant. - The Initial Developer hereby grants You a world-wide, royalty-free, - non-exclusive license, subject to third party intellectual property - claims: - (a) under intellectual property rights (other than patent or - trademark) Licensable by Initial Developer to use, reproduce, - modify, display, perform, sublicense and distribute the Original - Code (or portions thereof) with or without Modifications, and/or - as part of a Larger Work; and - - (b) under Patents Claims infringed by the making, using or - selling of Original Code, to make, have made, use, practice, - sell, and offer for sale, and/or otherwise dispose of the - Original Code (or portions thereof). - - (c) the licenses granted in this Section 2.1(a) and (b) are - effective on the date Initial Developer first distributes - Original Code under the terms of this License. - - (d) Notwithstanding Section 2.1(b) above, no patent license is - granted: 1) for code that You delete from the Original Code; 2) - separate from the Original Code; or 3) for infringements caused - by: i) the modification of the Original Code or ii) the - combination of the Original Code with other software or devices. - - 2.2. Contributor Grant. - Subject to third party intellectual property claims, each Contributor - hereby grants You a world-wide, royalty-free, non-exclusive license - - (a) under intellectual property rights (other than patent or - trademark) Licensable by Contributor, to use, reproduce, modify, - display, perform, sublicense and distribute the Modifications - created by such Contributor (or portions thereof) either on an - unmodified basis, with other Modifications, as Covered Code - and/or as part of a Larger Work; and - - (b) under Patent Claims infringed by the making, using, or - selling of Modifications made by that Contributor either alone - and/or in combination with its Contributor Version (or portions - of such combination), to make, use, sell, offer for sale, have - made, and/or otherwise dispose of: 1) Modifications made by that - Contributor (or portions thereof); and 2) the combination of - Modifications made by that Contributor with its Contributor - Version (or portions of such combination). - - (c) the licenses granted in Sections 2.2(a) and 2.2(b) are - effective on the date Contributor first makes Commercial Use of - the Covered Code. - - (d) Notwithstanding Section 2.2(b) above, no patent license is - granted: 1) for any code that Contributor has deleted from the - Contributor Version; 2) separate from the Contributor Version; - 3) for infringements caused by: i) third party modifications of - Contributor Version or ii) the combination of Modifications made - by that Contributor with other software (except as part of the - Contributor Version) or other devices; or 4) under Patent Claims - infringed by Covered Code in the absence of Modifications made by - that Contributor. - -3. Distribution Obligations. - - 3.1. Application of License. - The Modifications which You create or to which You contribute are - governed by the terms of this License, including without limitation - Section 2.2. The Source Code version of Covered Code may be - distributed only under the terms of this License or a future version - of this License released under Section 6.1, and You must include a - copy of this License with every copy of the Source Code You - distribute. You may not offer or impose any terms on any Source Code - version that alters or restricts the applicable version of this - License or the recipients' rights hereunder. However, You may include - an additional document offering the additional rights described in - Section 3.5. - - 3.2. Availability of Source Code. - Any Modification which You create or to which You contribute must be - made available in Source Code form under the terms of this License - either on the same media as an Executable version or via an accepted - Electronic Distribution Mechanism to anyone to whom you made an - Executable version available; and if made available via Electronic - Distribution Mechanism, must remain available for at least twelve (12) - months after the date it initially became available, or at least six - (6) months after a subsequent version of that particular Modification - has been made available to such recipients. You are responsible for - ensuring that the Source Code version remains available even if the - Electronic Distribution Mechanism is maintained by a third party. - - 3.3. Description of Modifications. - You must cause all Covered Code to which You contribute to contain a - file documenting the changes You made to create that Covered Code and - the date of any change. You must include a prominent statement that - the Modification is derived, directly or indirectly, from Original - Code provided by the Initial Developer and including the name of the - Initial Developer in (a) the Source Code, and (b) in any notice in an - Executable version or related documentation in which You describe the - origin or ownership of the Covered Code. - - 3.4. Intellectual Property Matters - (a) Third Party Claims. - If Contributor has knowledge that a license under a third party's - intellectual property rights is required to exercise the rights - granted by such Contributor under Sections 2.1 or 2.2, - Contributor must include a text file with the Source Code - distribution titled "LEGAL" which describes the claim and the - party making the claim in sufficient detail that a recipient will - know whom to contact. If Contributor obtains such knowledge after - the Modification is made available as described in Section 3.2, - Contributor shall promptly modify the LEGAL file in all copies - Contributor makes available thereafter and shall take other steps - (such as notifying appropriate mailing lists or newsgroups) - reasonably calculated to inform those who received the Covered - Code that new knowledge has been obtained. - - (b) Contributor APIs. - If Contributor's Modifications include an application programming - interface and Contributor has knowledge of patent licenses which - are reasonably necessary to implement that API, Contributor must - also include this information in the LEGAL file. - - (c) Representations. - Contributor represents that, except as disclosed pursuant to - Section 3.4(a) above, Contributor believes that Contributor's - Modifications are Contributor's original creation(s) and/or - Contributor has sufficient rights to grant the rights conveyed by - this License. - - 3.5. Required Notices. - You must duplicate the notice in Exhibit A in each file of the Source - Code. If it is not possible to put such notice in a particular Source - Code file due to its structure, then You must include such notice in a - location (such as a relevant directory) where a user would be likely - to look for such a notice. If You created one or more Modification(s) - You may add your name as a Contributor to the notice described in - Exhibit A. You must also duplicate this License in any documentation - for the Source Code where You describe recipients' rights or ownership - rights relating to Covered Code. You may choose to offer, and to - charge a fee for, warranty, support, indemnity or liability - obligations to one or more recipients of Covered Code. However, You - may do so only on Your own behalf, and not on behalf of the Initial - Developer or any Contributor. You must make it absolutely clear than - any such warranty, support, indemnity or liability obligation is - offered by You alone, and You hereby agree to indemnify the Initial - Developer and every Contributor for any liability incurred by the - Initial Developer or such Contributor as a result of warranty, - support, indemnity or liability terms You offer. - - 3.6. Distribution of Executable Versions. - You may distribute Covered Code in Executable form only if the - requirements of Section 3.1-3.5 have been met for that Covered Code, - and if You include a notice stating that the Source Code version of - the Covered Code is available under the terms of this License, - including a description of how and where You have fulfilled the - obligations of Section 3.2. The notice must be conspicuously included - in any notice in an Executable version, related documentation or - collateral in which You describe recipients' rights relating to the - Covered Code. You may distribute the Executable version of Covered - Code or ownership rights under a license of Your choice, which may - contain terms different from this License, provided that You are in - compliance with the terms of this License and that the license for the - Executable version does not attempt to limit or alter the recipient's - rights in the Source Code version from the rights set forth in this - License. If You distribute the Executable version under a different - license You must make it absolutely clear that any terms which differ - from this License are offered by You alone, not by the Initial - Developer or any Contributor. You hereby agree to indemnify the - Initial Developer and every Contributor for any liability incurred by - the Initial Developer or such Contributor as a result of any such - terms You offer. - - 3.7. Larger Works. - You may create a Larger Work by combining Covered Code with other code - not governed by the terms of this License and distribute the Larger - Work as a single product. In such a case, You must make sure the - requirements of this License are fulfilled for the Covered Code. - -4. Inability to Comply Due to Statute or Regulation. - - If it is impossible for You to comply with any of the terms of this - License with respect to some or all of the Covered Code due to - statute, judicial order, or regulation then You must: (a) comply with - the terms of this License to the maximum extent possible; and (b) - describe the limitations and the code they affect. Such description - must be included in the LEGAL file described in Section 3.4 and must - be included with all distributions of the Source Code. Except to the - extent prohibited by statute or regulation, such description must be - sufficiently detailed for a recipient of ordinary skill to be able to - understand it. - -5. Application of this License. - - This License applies to code to which the Initial Developer has - attached the notice in Exhibit A and to related Covered Code. - -6. Versions of the License. - - 6.1. New Versions. - Netscape Communications Corporation ("Netscape") may publish revised - and/or new versions of the License from time to time. Each version - will be given a distinguishing version number. - - 6.2. Effect of New Versions. - Once Covered Code has been published under a particular version of the - License, You may always continue to use it under the terms of that - version. You may also choose to use such Covered Code under the terms - of any subsequent version of the License published by Netscape. No one - other than Netscape has the right to modify the terms applicable to - Covered Code created under this License. - - 6.3. Derivative Works. - If You create or use a modified version of this License (which you may - only do in order to apply it to code which is not already Covered Code - governed by this License), You must (a) rename Your license so that - the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", - "MPL", "NPL" or any confusingly similar phrase do not appear in your - license (except to note that your license differs from this License) - and (b) otherwise make it clear that Your version of the license - contains terms which differ from the Mozilla Public License and - Netscape Public License. (Filling in the name of the Initial - Developer, Original Code or Contributor in the notice described in - Exhibit A shall not of themselves be deemed to be modifications of - this License.) - -7. DISCLAIMER OF WARRANTY. - - COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, - WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF - DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. - THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE - IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, - YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE - COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER - OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF - ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. - -8. TERMINATION. - - 8.1. This License and the rights granted hereunder will terminate - automatically if You fail to comply with terms herein and fail to cure - such breach within 30 days of becoming aware of the breach. All - sublicenses to the Covered Code which are properly granted shall - survive any termination of this License. Provisions which, by their - nature, must remain in effect beyond the termination of this License - shall survive. - - 8.2. If You initiate litigation by asserting a patent infringement - claim (excluding declatory judgment actions) against Initial Developer - or a Contributor (the Initial Developer or Contributor against whom - You file such action is referred to as "Participant") alleging that: - - (a) such Participant's Contributor Version directly or indirectly - infringes any patent, then any and all rights granted by such - Participant to You under Sections 2.1 and/or 2.2 of this License - shall, upon 60 days notice from Participant terminate prospectively, - unless if within 60 days after receipt of notice You either: (i) - agree in writing to pay Participant a mutually agreeable reasonable - royalty for Your past and future use of Modifications made by such - Participant, or (ii) withdraw Your litigation claim with respect to - the Contributor Version against such Participant. If within 60 days - of notice, a reasonable royalty and payment arrangement are not - mutually agreed upon in writing by the parties or the litigation claim - is not withdrawn, the rights granted by Participant to You under - Sections 2.1 and/or 2.2 automatically terminate at the expiration of - the 60 day notice period specified above. - - (b) any software, hardware, or device, other than such Participant's - Contributor Version, directly or indirectly infringes any patent, then - any rights granted to You by such Participant under Sections 2.1(b) - and 2.2(b) are revoked effective as of the date You first made, used, - sold, distributed, or had made, Modifications made by that - Participant. - - 8.3. If You assert a patent infringement claim against Participant - alleging that such Participant's Contributor Version directly or - indirectly infringes any patent where such claim is resolved (such as - by license or settlement) prior to the initiation of patent - infringement litigation, then the reasonable value of the licenses - granted by such Participant under Sections 2.1 or 2.2 shall be taken - into account in determining the amount or value of any payment or - license. - - 8.4. In the event of termination under Sections 8.1 or 8.2 above, - all end user license agreements (excluding distributors and resellers) - which have been validly granted by You or any distributor hereunder - prior to termination shall survive termination. - -9. LIMITATION OF LIABILITY. - - UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT - (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL - DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, - OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR - ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY - CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, - WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER - COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN - INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF - LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY - RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW - PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE - EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO - THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. - -10. U.S. GOVERNMENT END USERS. - - The Covered Code is a "commercial item," as that term is defined in - 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer - software" and "commercial computer software documentation," as such - terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 - C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), - all U.S. Government End Users acquire Covered Code with only those - rights set forth herein. - -11. MISCELLANEOUS. - - This License represents the complete agreement concerning subject - matter hereof. If any provision of this License is held to be - unenforceable, such provision shall be reformed only to the extent - necessary to make it enforceable. This License shall be governed by - California law provisions (except to the extent applicable law, if - any, provides otherwise), excluding its conflict-of-law provisions. - With respect to disputes in which at least one party is a citizen of, - or an entity chartered or registered to do business in the United - States of America, any litigation relating to this License shall be - subject to the jurisdiction of the Federal Courts of the Northern - District of California, with venue lying in Santa Clara County, - California, with the losing party responsible for costs, including - without limitation, court costs and reasonable attorneys' fees and - expenses. The application of the United Nations Convention on - Contracts for the International Sale of Goods is expressly excluded. - Any law or regulation which provides that the language of a contract - shall be construed against the drafter shall not apply to this - License. - -12. RESPONSIBILITY FOR CLAIMS. - - As between Initial Developer and the Contributors, each party is - responsible for claims and damages arising, directly or indirectly, - out of its utilization of rights under this License and You agree to - work with Initial Developer and Contributors to distribute such - responsibility on an equitable basis. Nothing herein is intended or - shall be deemed to constitute any admission of liability. - -13. MULTIPLE-LICENSED CODE. - - Initial Developer may designate portions of the Covered Code as - "Multiple-Licensed". "Multiple-Licensed" means that the Initial - Developer permits you to utilize portions of the Covered Code under - Your choice of the NPL or the alternative licenses, if any, specified - by the Initial Developer in the file described in Exhibit A. - -EXHIBIT A -Mozilla Public License. - - ``The contents of this file are subject to the Mozilla Public License - Version 1.1 (the "License"); you may not use this file except in - compliance with the License. You may obtain a copy of the License at - http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the - License for the specific language governing rights and limitations - under the License. - - The Original Code is RabbitMQ. - - The Initial Developer of the Original Code is VMware, Inc. - Copyright (c) 2007-2011 VMware, Inc. All rights reserved.'' - - [NOTE: The text of this Exhibit A may differ slightly from the text of - the notices in the Source Code files of the Original Code. You should - use the text of this Exhibit A rather than the text found in the - Original Code Source Code for Your Modifications.] - - - - - -If you have any questions regarding licensing, please contact us at -info@rabbitmq.com. - -The Debian packaging is (C) 2007-2011, VMware, Inc. and is licensed -under the MPL 1.1, see above. diff --git a/packaging/debs/Debian/debian/dirs b/packaging/debs/Debian/debian/dirs deleted file mode 100644 index 625b7d41..00000000 --- a/packaging/debs/Debian/debian/dirs +++ /dev/null @@ -1,9 +0,0 @@ -usr/lib/rabbitmq/bin -usr/lib/erlang/lib -usr/sbin -usr/share/man -var/lib/rabbitmq/mnesia -var/log/rabbitmq -etc/logrotate.d -etc/rabbitmq - diff --git a/packaging/debs/Debian/debian/postinst b/packaging/debs/Debian/debian/postinst deleted file mode 100644 index b11340ef..00000000 --- a/packaging/debs/Debian/debian/postinst +++ /dev/null @@ -1,60 +0,0 @@ -#!/bin/sh -# postinst script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `configure' -# * `abort-upgrade' -# * `abort-remove' `in-favour' -# -# * `abort-remove' -# * `abort-deconfigure' `in-favour' -# `removing' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - - -# create rabbitmq group -if ! getent group rabbitmq >/dev/null; then - addgroup --system rabbitmq -fi - -# create rabbitmq user -if ! getent passwd rabbitmq >/dev/null; then - adduser --system --ingroup rabbitmq --home /var/lib/rabbitmq \ - --no-create-home --gecos "RabbitMQ messaging server" \ - --disabled-login rabbitmq -fi - -chown -R rabbitmq:rabbitmq /var/lib/rabbitmq -chown -R rabbitmq:rabbitmq /var/log/rabbitmq - -case "$1" in - configure) - if [ -f /etc/rabbitmq/rabbitmq.conf ] && \ - [ ! -f /etc/rabbitmq/rabbitmq-env.conf ]; then - mv /etc/rabbitmq/rabbitmq.conf /etc/rabbitmq/rabbitmq-env.conf - fi - ;; - - abort-upgrade|abort-remove|abort-deconfigure) - ;; - - *) - echo "postinst called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/postrm.in b/packaging/debs/Debian/debian/postrm.in deleted file mode 100644 index c4aeeebe..00000000 --- a/packaging/debs/Debian/debian/postrm.in +++ /dev/null @@ -1,73 +0,0 @@ -#!/bin/sh -# postrm script for rabbitmq -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * `remove' -# * `purge' -# * `upgrade' -# * `failed-upgrade' -# * `abort-install' -# * `abort-install' -# * `abort-upgrade' -# * `disappear' -# -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - -remove_plugin_traces() { - # Remove traces of plugins - rm -rf /var/lib/rabbitmq/plugins-scratch -} - -case "$1" in - purge) - rm -f /etc/default/rabbitmq - if [ -d /var/lib/rabbitmq ]; then - rm -r /var/lib/rabbitmq - fi - if [ -d /var/log/rabbitmq ]; then - rm -r /var/log/rabbitmq - fi - if [ -d /var/run/rabbitmq ]; then - rm -r /var/run/rabbitmq - fi - if [ -d /etc/rabbitmq ]; then - rm -r /etc/rabbitmq - fi - remove_plugin_traces - if getent passwd rabbitmq >/dev/null; then - # Stop epmd if run by the rabbitmq user - pkill -u rabbitmq epmd || : - - deluser rabbitmq - fi - if getent group rabbitmq >/dev/null; then - delgroup rabbitmq - fi - ;; - - remove|upgrade) - remove_plugin_traces - ;; - - failed-upgrade|abort-install|abort-upgrade|disappear) - ;; - - *) - echo "postrm called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac - -# dh_installdeb will replace this with shell code automatically -# generated by other debhelper scripts. - -#DEBHELPER# - -exit 0 - - diff --git a/packaging/debs/Debian/debian/rabbitmq-server.logrotate b/packaging/debs/Debian/debian/rabbitmq-server.logrotate deleted file mode 100644 index c786df77..00000000 --- a/packaging/debs/Debian/debian/rabbitmq-server.logrotate +++ /dev/null @@ -1,12 +0,0 @@ -/var/log/rabbitmq/*.log { - weekly - missingok - rotate 20 - compress - delaycompress - notifempty - sharedscripts - postrotate - /etc/init.d/rabbitmq-server rotate-logs > /dev/null - endscript -} diff --git a/packaging/debs/Debian/debian/rules b/packaging/debs/Debian/debian/rules deleted file mode 100644 index a785b292..00000000 --- a/packaging/debs/Debian/debian/rules +++ /dev/null @@ -1,21 +0,0 @@ -#!/usr/bin/make -f - -include /usr/share/cdbs/1/rules/debhelper.mk -include /usr/share/cdbs/1/class/makefile.mk - -RABBIT_LIB=$(DEB_DESTDIR)usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)/ -RABBIT_BIN=$(DEB_DESTDIR)usr/lib/rabbitmq/bin/ - -DEB_MAKE_INSTALL_TARGET := install TARGET_DIR=$(RABBIT_LIB) SBIN_DIR=$(RABBIT_BIN) MAN_DIR=$(DEB_DESTDIR)usr/share/man/ -DEB_MAKE_CLEAN_TARGET:= distclean - -DOCDIR=$(DEB_DESTDIR)usr/share/doc/rabbitmq-server/ - -install/rabbitmq-server:: - mkdir -p $(DOCDIR) - rm $(RABBIT_LIB)LICENSE* $(RABBIT_LIB)INSTALL* - for script in rabbitmqctl rabbitmq-server; do \ - install -p -D -m 0755 debian/rabbitmq-script-wrapper $(DEB_DESTDIR)usr/sbin/$$script; \ - done - sed -e 's|@RABBIT_LIB@|/usr/lib/rabbitmq/lib/rabbitmq_server-$(DEB_UPSTREAM_VERSION)|g' debian/postrm - install -p -D -m 0755 debian/rabbitmq-server.ocf $(DEB_DESTDIR)usr/lib/ocf/resource.d/rabbitmq/rabbitmq-server diff --git a/packaging/debs/Debian/debian/watch b/packaging/debs/Debian/debian/watch deleted file mode 100644 index b41aff9a..00000000 --- a/packaging/debs/Debian/debian/watch +++ /dev/null @@ -1,4 +0,0 @@ -version=3 - -http://www.rabbitmq.com/releases/rabbitmq-server/v(.*)/rabbitmq-server-(\d.*)\.tar\.gz \ - debian uupdate diff --git a/packaging/debs/apt-repository/Makefile b/packaging/debs/apt-repository/Makefile deleted file mode 100644 index ce4347bc..00000000 --- a/packaging/debs/apt-repository/Makefile +++ /dev/null @@ -1,28 +0,0 @@ -SIGNING_USER_EMAIL=info@rabbitmq.com - -ifeq "$(UNOFFICIAL_RELEASE)" "" -HOME_ARG=HOME=$(GNUPG_PATH) -endif - -all: debian_apt_repository - -clean: - rm -rf debian - -CAN_HAS_REPREPRO=$(shell [ -f /usr/bin/reprepro ] && echo true) -ifeq ($(CAN_HAS_REPREPRO), true) -debian_apt_repository: clean - mkdir -p debian/conf - cp -a distributions debian/conf -ifeq "$(UNOFFICIAL_RELEASE)" "" - echo SignWith: $(SIGNING_USER_EMAIL) >> debian/conf/distributions -endif - for FILE in ../Debian/*.changes ; do \ - $(HOME_ARG) reprepro --ignore=wrongdistribution \ - -Vb debian include kitten $${FILE} ; \ - done - reprepro -Vb debian createsymlinks -else -debian_apt_repository: - @echo Not building APT repository as reprepro could not be found -endif diff --git a/packaging/debs/apt-repository/README b/packaging/debs/apt-repository/README deleted file mode 100644 index 514a37f3..00000000 --- a/packaging/debs/apt-repository/README +++ /dev/null @@ -1,17 +0,0 @@ -APT repository for RabbitMQ - -Previously we've attempted to run a repository in the same way that -Debian would: have repository management software installed on the -server, and upload new packages to the repository as and when they're -ready. - -This turned out to be both fiddly and annoying to do (and more -particularly to automate) so since our repository is always going to be -small it's easier just to create the entire repository as part of the -build process, just like a package. It can then be moved into place as a -single unit. The make target "debian_apt_repository" (invoked by "dist") -will create it, and it can get moved onto the server with the rest of -the packages. - -Read "README-real-repository" for information on how we used to do -this. diff --git a/packaging/debs/apt-repository/README-real-repository b/packaging/debs/apt-repository/README-real-repository deleted file mode 100644 index b1526227..00000000 --- a/packaging/debs/apt-repository/README-real-repository +++ /dev/null @@ -1,130 +0,0 @@ -APT Repository for RabbitMQ in Debian -===================================== - -First, a note on what we're trying to do. We want a single "testing" -repository. When RabbitMQ is more stable we will also want a -"stable" repository. It is very important to understand that these refer -to the state of the rabbit code, *NOT* which Debian distribution they go -with. At the moment our dependencies are very simple so our packages can -be used with any current Debian version (etch, lenny, sid) as well as -with Ubuntu. So although we have a "testing" distribution, this is not -codenamed "lenny". Instead it's currently codenamed "kitten" since -that's a baby rabbit. - -Secondly, a note on software. We need a tool to manage the repository, -and a tool to perform uploads to the repository. Debian being Debian -there are quite a few of each. We will use "rerepro" to manage the -repository since it's modern, maintained, and fairly simple. We will use -"dupload" to perform the uploads since it gives us the ability to run -arbitrary commands after the upload, which means we don't need to run a -cron job on the web server to process uploads. - -Creating a repository -===================== - -Much of this was cribbed from: -http://www.debian-administration.org/articles/286 - -The repository is fundamentally just some files in a folder, served over -HTTP (or FTP etc). So let's make it "debian" in the root of -www.rabbitmq.com. - -This means the repository will be at http://www.rabbitmq.com/debian/ and -can be added to a sources.list as: - -deb http://www.rabbitmq.com/debian/ testing main -deb-src http://www.rabbitmq.com/debian/ testing main - -Inside this folder we need a "conf" folder, and in -that we need a "distributions" configuration file - see the file in this -folder. Note that: - -* We list all architectures so that people can install rabbitmq-server - on to anything. -* We don't list the "all" architecture even though we use it; it's - implied. -* We only have a "main" component, we could have non-free and contrib - here if it was relevant. -* We list the email address associated with the key we want to use to - sign the repository. Yes, even after signing packages we still want to - sign the repository. - -We're now ready to go. Assuming the path to our repository is /path, -(and hence configuration is in /path/conf) we can upload a file to the -repository (creating it in the process) by doing something like this on -the repository host: - -$ reprepro --ignore=wrongdistribution -Vb /path include kitten \ - rabbitmq-server_1.0.0-alpha-1_i386.changes - -Note that we upload to the distribution "kitten" rather than "testing". -We also pass --ignore=wrongdistribution since the current packages are -built to go in "unstable" (this will be changed obviously). - -Note also that the .changes file claims to be for i386 even though the -package is for architecture "all". This is a bug in debhelper. - -Finally, if you've just created a repository, you want to run: - -$ reprepro -Vb /path createsymlinks - -since this will create "kitten" -> "testing" symlinks. You only need to -do this once. - -Removing packages -================= - -Fairly simple: - -$ reprepro --ignore=wrongdistribution -Vb /path remove kitten \ - rabbitmq-server - -Subsequent updates and "dupload" -================================ - -You can run the "reprepro" command above again to update the versions of -software in the repository. Since we probably don't want to have to log -into the machine in question to do this, we can use "dupload". This is a -tool which uploads Debian packages. The supplied file "dupload.conf" can -be renamed to ~/.dupload.conf. If you then run: - -$ dupload -to rabbit --nomail . - -in the folder with the .changes file, dupload will: - -* create an incoming folder in your home directory on the repository -machine -* upload everything there -* run reprepro to move the packages into the repository -* "rm -rf" the uploads folder - -This is a bit cheesy but should be enough for our purposes. The -dupload.conf uses scp and ssh so you need a public-key login (or tpye -your password lots). - -There's still an open question as to whether dupload is really needed -for our case. - -Keys and signing -================ - -We currently sign the package as we build it; but we also need to sign -the repository. The key is currently on my machine (mrforgetful) and has -ID 056E8E56. We should put it on CDs though. - -reprepro will automatically sign the repository if we have the right -SignWith line in the configuration, AND the secret key is installed on -the repository server. This is obviously not ideal; not sure what the -solution is right now. - -You can export the public key with: - -$ gpg --export --armor 056E8E56 > rabbit.pub - -(Open question: do we want to get our key on subkeys.pgp.net?) - -We can then add this key to the website and tell our users to import the -key into apt with: - -# apt-key add rabbit.pub - diff --git a/packaging/debs/apt-repository/distributions b/packaging/debs/apt-repository/distributions deleted file mode 100644 index 183eb034..00000000 --- a/packaging/debs/apt-repository/distributions +++ /dev/null @@ -1,7 +0,0 @@ -Origin: RabbitMQ -Label: RabbitMQ Repository for Debian / Ubuntu etc -Suite: testing -Codename: kitten -Architectures: arm hppa ia64 mips mipsel s390 sparc i386 amd64 powerpc source -Components: main -Description: RabbitMQ Repository for Debian / Ubuntu etc diff --git a/packaging/debs/apt-repository/dupload.conf b/packaging/debs/apt-repository/dupload.conf deleted file mode 100644 index 9ceed760..00000000 --- a/packaging/debs/apt-repository/dupload.conf +++ /dev/null @@ -1,16 +0,0 @@ -package config; - -$rabbit_user = "simon"; -$rabbit_host = "mrforgetful.lshift.net"; -$rabbit_repo_path = "/srv/debian"; -$rabbit_reprepro_extra_args = "--ignore=wrongdistribution"; - -$cfg{'rabbit'} = { - fqdn => "$rabbit_host", - login => "$rabbit_user", - method => "scp", - incoming => "incoming", -}; - -$preupload{'deb'} = "ssh ${rabbit_host} mkdir incoming"; -$postupload{'deb'} = "ssh ${rabbit_host} \"cd incoming && reprepro ${$rabbit_reprepro_extra_args} -Vb ${rabbit_repo_path} include kitten *.changes && cd .. && rm -r incoming\""; diff --git a/packaging/generic-unix/Makefile b/packaging/generic-unix/Makefile deleted file mode 100644 index b5c342aa..00000000 --- a/packaging/generic-unix/Makefile +++ /dev/null @@ -1,23 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_TARBALL=rabbitmq-server-generic-unix-$(VERSION) - -dist: - tar -zxf ../../dist/$(SOURCE_DIR).tar.gz - - $(MAKE) -C $(SOURCE_DIR) \ - TARGET_DIR=`pwd`/$(TARGET_DIR) \ - SBIN_DIR=`pwd`/$(TARGET_DIR)/sbin \ - MAN_DIR=`pwd`/$(TARGET_DIR)/share/man \ - install - - tar -zcf $(TARGET_TARBALL).tar.gz $(TARGET_DIR) - rm -rf $(SOURCE_DIR) $(TARGET_DIR) - -clean: clean_partial - rm -f rabbitmq-server-generic-unix-*.tar.gz - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/packaging/macports/Makefile b/packaging/macports/Makefile deleted file mode 100644 index 47da02dc..00000000 --- a/packaging/macports/Makefile +++ /dev/null @@ -1,59 +0,0 @@ -TARBALL_SRC_DIR=../../dist -TARBALL_BIN_DIR=../../packaging/generic-unix/ -TARBALL_SRC=$(wildcard $(TARBALL_SRC_DIR)/rabbitmq-server-[0-9.]*.tar.gz) -TARBALL_BIN=$(wildcard $(TARBALL_BIN_DIR)/rabbitmq-server-generic-unix-[0-9.]*.tar.gz) -COMMON_DIR=../common -VERSION=$(shell echo $(TARBALL_SRC) | sed -e 's:rabbitmq-server-\(.*\)\.tar\.gz:\1:g') - -# The URL at which things really get deployed -REAL_WEB_URL=http://www.rabbitmq.com/ - -# The user@host for an OSX machine with macports installed, which is -# used to generate the macports index files. That step will be -# skipped if this variable is not set. If you do set it, you might -# also want to set SSH_OPTS, which allows adding ssh options, e.g. to -# specify a key that will get into the OSX machine without a -# passphrase. -MACPORTS_USERHOST= - -MACPORTS_DIR=macports -DEST=$(MACPORTS_DIR)/net/rabbitmq-server - -all: macports - -dirs: - mkdir -p $(DEST)/files - -$(DEST)/Portfile: Portfile.in - ./make-checksums.sh $(TARBALL_SRC) $(TARBALL_BIN) > checksums.sed - sed -e "s|@VERSION@|$(VERSION)|g;s|@BASE_URL@|$(REAL_WEB_URL)|g" \ - -f checksums.sed <$^ >$@ - rm checksums.sed - -# The purpose of the intricate substitution below is to set up similar -# environment vars to the ones that su will on Linux. On OS X, we -# have to use the -m option to su in order to be able to set the shell -# (which for the rabbitmq user would otherwise be /dev/null). But the -# -m option means that *all* environment vars get preserved. Erlang -# needs vars such as HOME to be set. So we have to set them -# explicitly. -macports: dirs $(DEST)/Portfile - cp $(COMMON_DIR)/rabbitmq-script-wrapper $(DEST)/files - sed -i -e 's|@SU_RABBITMQ_SH_C@|SHELL=/bin/sh HOME=/var/lib/rabbitmq USER=rabbitmq LOGNAME=rabbitmq PATH="$$(eval `PATH=MACPORTS_PREFIX/bin /usr/libexec/path_helper -s`; echo $$PATH)" su -m rabbitmq -c|' \ - $(DEST)/files/rabbitmq-script-wrapper - cp patch-org.macports.rabbitmq-server.plist.diff $(DEST)/files - if [ -n "$(MACPORTS_USERHOST)" ] ; then \ - tar cf - -C $(MACPORTS_DIR) . | ssh $(SSH_OPTS) $(MACPORTS_USERHOST) ' \ - d="/tmp/mkportindex.$$$$" ; \ - mkdir $$d \ - && cd $$d \ - && tar xf - \ - && /opt/local/bin/portindex -a -o . >/dev/null \ - && tar cf - . \ - && cd \ - && rm -rf $$d' \ - | tar xf - -C $(MACPORTS_DIR) ; \ - fi - -clean: - rm -rf $(MACPORTS_DIR) checksums.sed diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in deleted file mode 100644 index 4a866305..00000000 --- a/packaging/macports/Portfile.in +++ /dev/null @@ -1,116 +0,0 @@ -# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4 -# $Id$ - -PortSystem 1.0 -name rabbitmq-server -version @VERSION@ -categories net -maintainers paperplanes.de:meyer openmaintainer -platforms darwin -supported_archs noarch - -description The RabbitMQ AMQP Server -long_description \ - RabbitMQ is an implementation of AMQP, the emerging standard for \ - high performance enterprise messaging. The RabbitMQ server is a \ - robust and scalable implementation of an AMQP broker. - - -homepage @BASE_URL@ -master_sites @BASE_URL@releases/rabbitmq-server/v${version}/ - -distfiles ${name}-${version}${extract.suffix} \ - ${name}-generic-unix-${version}${extract.suffix} - -checksums \ - ${name}-${version}${extract.suffix} \ - sha1 @sha1-src@ \ - rmd160 @rmd160-src@ \ - ${name}-generic-unix-${version}${extract.suffix} \ - sha1 @sha1-bin@ \ - rmd160 @rmd160-bin@ - -depends_lib port:erlang -depends_build port:libxslt - -platform darwin 8 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -platform darwin 9 { - depends_build-append port:py26-simplejson - build.args PYTHON=${prefix}/bin/python2.6 -} -# no need for simplejson on Snow Leopard or higher - - -set serveruser rabbitmq -set servergroup rabbitmq -set serverhome ${prefix}/var/lib/rabbitmq -set logdir ${prefix}/var/log/rabbitmq -set mnesiadbdir ${prefix}/var/lib/rabbitmq/mnesia -set plistloc ${prefix}/etc/LaunchDaemons/org.macports.rabbitmq-server -set sbindir ${destroot}${prefix}/lib/rabbitmq/bin -set wrappersbin ${destroot}${prefix}/sbin -set realsbin ${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version}/sbin -set mansrc ${workpath}/rabbitmq_server-${version}/share/man -set mandest ${destroot}${prefix}/share/man - -use_configure no - -use_parallel_build yes - -destroot.target install_bin - -destroot.destdir \ - TARGET_DIR=${destroot}${prefix}/lib/rabbitmq/lib/rabbitmq_server-${version} \ - SBIN_DIR=${sbindir} \ - MAN_DIR=${destroot}${prefix}/share/man - -destroot.keepdirs \ - ${destroot}${logdir} \ - ${destroot}${mnesiadbdir} - -pre-destroot { - addgroup ${servergroup} - adduser ${serveruser} gid=[existsgroup ${servergroup}] realname=RabbitMQ\ Server home=${serverhome} -} - -post-destroot { - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${logdir} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${serverhome} - xinstall -d -g [existsgroup ${servergroup}] -m 775 ${destroot}${mnesiadbdir} - - reinplace -E "s:(/etc/rabbitmq/rabbitmq):${prefix}\\1:g" \ - ${realsbin}/rabbitmq-env - foreach var {CONFIG_FILE LOG_BASE MNESIA_BASE} { - reinplace -E "s:^($var)=/:\\1=${prefix}/:" \ - ${realsbin}/rabbitmq-server \ - ${realsbin}/rabbitmqctl - } - - xinstall -m 555 ${filespath}/rabbitmq-script-wrapper \ - ${wrappersbin}/rabbitmq-server - - reinplace -E "s:MACPORTS_PREFIX/bin:${prefix}/bin:" \ - ${wrappersbin}/rabbitmq-server - reinplace -E "s:/usr/lib/rabbitmq/bin/:${prefix}/lib/rabbitmq/bin/:" \ - ${wrappersbin}/rabbitmq-server - reinplace -E "s:/var/lib/rabbitmq:${prefix}/var/lib/rabbitmq:" \ - ${wrappersbin}/rabbitmq-server - file copy ${wrappersbin}/rabbitmq-server ${wrappersbin}/rabbitmqctl - - xinstall -m 644 -W ${mansrc}/man1 rabbitmq-server.1.gz rabbitmqctl.1.gz \ - ${mandest}/man1/ - xinstall -m 644 -W ${mansrc}/man5 rabbitmq-env.conf.5.gz ${mandest}/man5/ -} - -pre-install { - system "cd ${destroot}${plistloc}; patch <${filespath}/patch-org.macports.rabbitmq-server.plist.diff" -} - -startupitem.create yes -startupitem.init "PATH=${prefix}/bin:${prefix}/sbin:\$PATH; export PATH" -startupitem.start "rabbitmq-server 2>&1" -startupitem.stop "rabbitmqctl stop 2>&1" -startupitem.logfile ${prefix}/var/log/rabbitmq/startupitem.log diff --git a/packaging/macports/make-checksums.sh b/packaging/macports/make-checksums.sh deleted file mode 100755 index 891de6ba..00000000 --- a/packaging/macports/make-checksums.sh +++ /dev/null @@ -1,14 +0,0 @@ -#!/bin/bash -# NB: this script requires bash -tarball_src=$1 -tarball_bin=$2 -for type in src bin -do - tarball_var=tarball_${type} - tarball=${!tarball_var} - for algo in sha1 rmd160 - do - checksum=$(openssl $algo ${tarball} | awk '{print $NF}') - echo "s|@$algo-$type@|$checksum|g" - done -done diff --git a/packaging/macports/make-port-diff.sh b/packaging/macports/make-port-diff.sh deleted file mode 100755 index 3eb1b9f5..00000000 --- a/packaging/macports/make-port-diff.sh +++ /dev/null @@ -1,27 +0,0 @@ -#!/bin/bash - -# This script grabs the latest rabbitmq-server bits from the main -# macports subversion repo, and from the rabbitmq.com macports repo, -# and produces a diff from the former to the latter for submission -# through the macports trac. - -set -e - -dir=/tmp/$(basename $0).$$ -mkdir -p $dir/macports $dir/rabbitmq - -# Get the files from the macports subversion repo -cd $dir/macports -svn checkout http://svn.macports.org/repository/macports/trunk/dports/net/rabbitmq-server/ 2>&1 >/dev/null - -# Clear out the svn $id tag -sed -i -e 's|^# \$.*$|# $Id$|' rabbitmq-server/Portfile - -# Get the files from the rabbitmq.com macports repo -cd ../rabbitmq -curl -s http://www.rabbitmq.com/releases/macports/net/rabbitmq-server.tgz | tar xzf - - -cd .. -diff -Naur --exclude=.svn macports rabbitmq -cd / -rm -rf $dir diff --git a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff b/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff deleted file mode 100644 index 45b49496..00000000 --- a/packaging/macports/patch-org.macports.rabbitmq-server.plist.diff +++ /dev/null @@ -1,10 +0,0 @@ ---- org.macports.rabbitmq-server.plist.old 2009-02-26 08:00:31.000000000 -0800 -+++ org.macports.rabbitmq-server.plist 2009-02-26 08:01:27.000000000 -0800 -@@ -22,6 +22,7 @@ - ; - --pid=none - -+UserNamerabbitmq - Debug - Disabled - OnDemand diff --git a/packaging/windows-exe/Makefile b/packaging/windows-exe/Makefile deleted file mode 100644 index ab50e30b..00000000 --- a/packaging/windows-exe/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -VERSION=0.0.0 -ZIP=../windows/rabbitmq-server-windows-$(VERSION) - -dist: rabbitmq-$(VERSION).nsi rabbitmq_server-$(VERSION) - makensis -V2 rabbitmq-$(VERSION).nsi - -rabbitmq-$(VERSION).nsi: rabbitmq_nsi.in - sed \ - -e 's|%%VERSION%%|$(VERSION)|' \ - $< > $@ - -rabbitmq_server-$(VERSION): - unzip -q $(ZIP) - -clean: - rm -rf rabbitmq-*.nsi rabbitmq_server-* rabbitmq-server-*.exe diff --git a/packaging/windows-exe/rabbitmq.ico b/packaging/windows-exe/rabbitmq.ico deleted file mode 100644 index 5e169a79..00000000 Binary files a/packaging/windows-exe/rabbitmq.ico and /dev/null differ diff --git a/packaging/windows-exe/rabbitmq_nsi.in b/packaging/windows-exe/rabbitmq_nsi.in deleted file mode 100644 index 27e4e1dc..00000000 --- a/packaging/windows-exe/rabbitmq_nsi.in +++ /dev/null @@ -1,237 +0,0 @@ -; Use the "Modern" UI -!include MUI2.nsh -!include LogicLib.nsh -!include WinMessages.nsh -!include FileFunc.nsh -!include WordFunc.nsh - -!define env_hklm 'HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"' -!define uninstall "Software\Microsoft\Windows\CurrentVersion\Uninstall\RabbitMQ" - -;-------------------------------- - -; The name of the installer -Name "RabbitMQ Server %%VERSION%%" - -; The file to write -OutFile "rabbitmq-server-%%VERSION%%.exe" - -; Icons -!define MUI_ICON "rabbitmq.ico" - -; The default installation directory -InstallDir "$PROGRAMFILES\RabbitMQ Server" - -; Registry key to check for directory (so if you install again, it will -; overwrite the old one automatically) -InstallDirRegKey HKLM "Software\VMware, Inc.\RabbitMQ Server" "Install_Dir" - -; Request application privileges for Windows Vista -RequestExecutionLevel admin - -SetCompressor /solid lzma - -VIProductVersion "%%VERSION%%.0" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductVersion" "%%VERSION%%" -VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductName" "RabbitMQ Server" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "Comments" "" -VIAddVersionKey /LANG=${LANG_ENGLISH} "CompanyName" "VMware, Inc" -;VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalTrademarks" "" ; TODO ? -VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalCopyright" "Copyright (c) 2007-2011 VMware, Inc. All rights reserved." -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileDescription" "RabbitMQ Server" -VIAddVersionKey /LANG=${LANG_ENGLISH} "FileVersion" "%%VERSION%%" - -;-------------------------------- - -; Pages - - -; !insertmacro MUI_PAGE_LICENSE "..\..\LICENSE-MPL-RabbitMQ" - !insertmacro MUI_PAGE_COMPONENTS - !insertmacro MUI_PAGE_DIRECTORY - !insertmacro MUI_PAGE_INSTFILES - !insertmacro MUI_PAGE_FINISH - - !insertmacro MUI_UNPAGE_CONFIRM - !insertmacro MUI_UNPAGE_INSTFILES - !define MUI_FINISHPAGE_TEXT "RabbitMQ Server %%VERSION%% has been uninstalled from your computer.$\n$\nPlease note that the log and database directories located at $APPDATA\RabbitMQ have not been removed. You can remove them manually if desired." - !insertmacro MUI_UNPAGE_FINISH - -;-------------------------------- -;Languages - - !insertmacro MUI_LANGUAGE "English" - -;-------------------------------- - -; The stuff to install -Section "RabbitMQ Server (required)" Rabbit - - SectionIn RO - - ; Set output path to the installation directory. - SetOutPath $INSTDIR - - ; Put files there - File /r "rabbitmq_server-%%VERSION%%" - File "rabbitmq.ico" - - ; Write the installation path into the registry - WriteRegStr HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" "Install_Dir" "$INSTDIR" - - ; Write the uninstall keys for Windows - WriteRegStr HKLM ${uninstall} "DisplayName" "RabbitMQ Server" - WriteRegStr HKLM ${uninstall} "UninstallString" "$INSTDIR\uninstall.exe" - WriteRegStr HKLM ${uninstall} "DisplayIcon" "$INSTDIR\uninstall.exe,0" - WriteRegStr HKLM ${uninstall} "Publisher" "VMware, Inc." - WriteRegStr HKLM ${uninstall} "DisplayVersion" "%%VERSION%%" - WriteRegDWORD HKLM ${uninstall} "NoModify" 1 - WriteRegDWORD HKLM ${uninstall} "NoRepair" 1 - - ${GetSize} "$INSTDIR" "/S=0K" $0 $1 $2 - IntFmt $0 "0x%08X" $0 - WriteRegDWORD HKLM "${uninstall}" "EstimatedSize" "$0" - - WriteUninstaller "uninstall.exe" -SectionEnd - -;-------------------------------- - -Section "RabbitMQ Service" RabbitService - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" install' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" start' - CopyFiles "$WINDIR\.erlang.cookie" "$PROFILE\.erlang.cookie" -SectionEnd - -;-------------------------------- - -Section "Start Menu" RabbitStartMenu - ; In case the service is not installed, or the service installation fails, - ; make sure these exist or Explorer will get confused. - CreateDirectory "$APPDATA\RabbitMQ\log" - CreateDirectory "$APPDATA\RabbitMQ\db" - - CreateDirectory "$SMPROGRAMS\RabbitMQ Server" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\Uninstall RabbitMQ.lnk" "$INSTDIR\uninstall.exe" "" "$INSTDIR\uninstall.exe" 0 - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Plugins.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\plugins" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Logs.lnk" "$APPDATA\RabbitMQ\log" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Database Directory.lnk" "$APPDATA\RabbitMQ\db" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Service - (re)install.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "install" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Service - remove.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "remove" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Service - start.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "start" "$INSTDIR\rabbitmq.ico" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Service - stop.lnk" "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" "stop" "$INSTDIR\rabbitmq.ico" - - SetOutPath "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin" - CreateShortCut "$SMPROGRAMS\RabbitMQ Server\RabbitMQ Command Prompt (sbin dir).lnk" "$WINDIR\system32\cmd.exe" "" "$WINDIR\system32\cmd.exe" - SetOutPath $INSTDIR -SectionEnd - -;-------------------------------- - -; Section descriptions - -LangString DESC_Rabbit ${LANG_ENGLISH} "The RabbitMQ Server." -LangString DESC_RabbitService ${LANG_ENGLISH} "Set up RabbitMQ as a Windows Service." -LangString DESC_RabbitStartMenu ${LANG_ENGLISH} "Add some useful links to the start menu." - -!insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN - !insertmacro MUI_DESCRIPTION_TEXT ${Rabbit} $(DESC_Rabbit) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitService} $(DESC_RabbitService) - !insertmacro MUI_DESCRIPTION_TEXT ${RabbitStartMenu} $(DESC_RabbitStartMenu) -!insertmacro MUI_FUNCTION_DESCRIPTION_END - -;-------------------------------- - -; Uninstaller - -Section "Uninstall" - - ; Remove registry keys - DeleteRegKey HKLM ${uninstall} - DeleteRegKey HKLM "SOFTWARE\VMware, Inc.\RabbitMQ Server" - - ; TODO these will fail if the service is not installed - do we care? - ExpandEnvStrings $0 %COMSPEC% - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" stop' - ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" remove' - - ; Remove files and uninstaller - RMDir /r "$INSTDIR\rabbitmq_server-%%VERSION%%" - Delete "$INSTDIR\rabbitmq.ico" - Delete "$INSTDIR\uninstall.exe" - - ; Remove start menu items - RMDir /r "$SMPROGRAMS\RabbitMQ Server" - - DeleteRegValue ${env_hklm} ERLANG_HOME - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - -SectionEnd - -;-------------------------------- - -; Functions - -Function .onInit - Call findErlang - - ReadRegStr $0 HKLM ${uninstall} "UninstallString" - ${If} $0 != "" - MessageBox MB_OKCANCEL|MB_ICONEXCLAMATION "RabbitMQ is already installed. $\n$\nClick 'OK' to remove the previous version or 'Cancel' to cancel this installation." IDCANCEL norun - - ;Run the uninstaller - ClearErrors - ExecWait $INSTDIR\uninstall.exe - - norun: - Abort - ${EndIf} -FunctionEnd - -Function findErlang - - StrCpy $0 0 - StrCpy $2 "not-found" - ${Do} - EnumRegKey $1 HKLM Software\Ericsson\Erlang $0 - ${If} $1 = "" - ${Break} - ${EndIf} - ${If} $1 <> "ErlSrv" - StrCpy $2 $1 - ${EndIf} - - IntOp $0 $0 + 1 - ${Loop} - - ${If} $2 = "not-found" - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Erlang could not be detected.$\nYou must install Erlang before installing RabbitMQ. Would you like the installer to open a browser window to the Erlang download site?" IDNO abort - ExecShell "open" "http://www.erlang.org/download.html" - abort: - Abort - ${Else} - ${VersionCompare} $2 "5.6.3" $0 - ${VersionCompare} $2 "5.8.1" $1 - - ${If} $0 = 2 - MessageBox MB_OK|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is too old. Please install a more recent version." - Abort - ${ElseIf} $1 = 2 - MessageBox MB_YESNO|MB_ICONEXCLAMATION "Your installed version of Erlang ($2) is comparatively old.$\nFor best results, please install a newer version.$\nDo you wish to continue?" IDYES no_abort - Abort - no_abort: - ${EndIf} - - ReadRegStr $0 HKLM "Software\Ericsson\Erlang\$2" "" - - ; See http://nsis.sourceforge.net/Setting_Environment_Variables - WriteRegExpandStr ${env_hklm} ERLANG_HOME $0 - SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 - - ; On Windows XP changing the permanent environment does not change *our* - ; environment, so do that as well. - System::Call 'Kernel32::SetEnvironmentVariableA(t, t) i("ERLANG_HOME", "$0").r0' - ${EndIf} - -FunctionEnd \ No newline at end of file diff --git a/packaging/windows/Makefile b/packaging/windows/Makefile deleted file mode 100644 index a0be8d89..00000000 --- a/packaging/windows/Makefile +++ /dev/null @@ -1,35 +0,0 @@ -VERSION=0.0.0 -SOURCE_DIR=rabbitmq-server-$(VERSION) -TARGET_DIR=rabbitmq_server-$(VERSION) -TARGET_ZIP=rabbitmq-server-windows-$(VERSION) - -dist: - tar -zxf ../../dist/$(SOURCE_DIR).tar.gz - $(MAKE) -C $(SOURCE_DIR) - - mkdir $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-server.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmq-service.bat $(SOURCE_DIR)/sbin - mv $(SOURCE_DIR)/scripts/rabbitmqctl.bat $(SOURCE_DIR)/sbin - rm -rf $(SOURCE_DIR)/scripts - rm -rf $(SOURCE_DIR)/codegen* $(SOURCE_DIR)/Makefile - rm -f $(SOURCE_DIR)/README - rm -rf $(SOURCE_DIR)/docs - - mv $(SOURCE_DIR) $(TARGET_DIR) - mkdir -p $(TARGET_DIR) - mkdir -p $(TARGET_DIR)/plugins - echo Put your .ez plugin files in this directory > $(TARGET_DIR)/plugins/README - xmlto -o . xhtml-nochunks ../../docs/rabbitmq-service.xml - elinks -dump -no-references -no-numbering rabbitmq-service.html \ - > $(TARGET_DIR)/readme-service.txt - todos $(TARGET_DIR)/readme-service.txt - zip -q -r $(TARGET_ZIP).zip $(TARGET_DIR) - rm -rf $(TARGET_DIR) rabbitmq-service.html - -clean: clean_partial - rm -f rabbitmq-server-windows-*.zip - -clean_partial: - rm -rf $(SOURCE_DIR) - rm -rf $(TARGET_DIR) diff --git a/quickcheck b/quickcheck deleted file mode 100755 index a36cf3ed..00000000 --- a/quickcheck +++ /dev/null @@ -1,36 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- -%%! -sname quickcheck --mode(compile). - -%% A helper to test quickcheck properties on a running broker -%% NodeStr is a local broker node name -%% ModStr is the module containing quickcheck properties -%% The number of trials is optional -main([NodeStr, ModStr | TrialsStr]) -> - {ok, Hostname} = inet:gethostname(), - Node = list_to_atom(NodeStr ++ "@" ++ Hostname), - Mod = list_to_atom(ModStr), - Trials = lists:map(fun erlang:list_to_integer/1, TrialsStr), - case rpc:call(Node, code, ensure_loaded, [proper]) of - {module, proper} -> - case rpc:call(Node, proper, module, [Mod] ++ Trials) of - [] -> ok; - _ -> quit(1) - end; - {badrpc, Reason} -> - io:format("Could not contact node ~p: ~p.~n", [Node, Reason]), - quit(2); - {error,nofile} -> - io:format("Module PropEr was not found on node ~p~n", [Node]), - quit(2) - end; -main([]) -> - io:format("This script requires a node name and a module.~n"). - -quit(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status) - end. - diff --git a/scripts/rabbitmq-env b/scripts/rabbitmq-env deleted file mode 100755 index a2ef8d3c..00000000 --- a/scripts/rabbitmq-env +++ /dev/null @@ -1,45 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -# Determine where this script is really located -SCRIPT_PATH="$0" -while [ -h "$SCRIPT_PATH" ] ; do - FULL_PATH=`readlink -f $SCRIPT_PATH 2>/dev/null` - if [ "$?" != "0" ]; then - REL_PATH=`readlink $SCRIPT_PATH` - if expr "$REL_PATH" : '/.*' > /dev/null; then - SCRIPT_PATH="$REL_PATH" - else - SCRIPT_PATH="`dirname "$SCRIPT_PATH"`/$REL_PATH" - fi - else - SCRIPT_PATH=$FULL_PATH - fi -done - -SCRIPT_DIR=`dirname $SCRIPT_PATH` -RABBITMQ_HOME="${SCRIPT_DIR}/.." -[ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname` -NODENAME=rabbit@${HOSTNAME%%.*} - -# Load configuration from the rabbitmq.conf file -if [ -f /etc/rabbitmq/rabbitmq.conf ] && \ - [ ! -f /etc/rabbitmq/rabbitmq-env.conf ] ; then - echo -n "WARNING: ignoring /etc/rabbitmq/rabbitmq.conf -- " - echo "location has moved to /etc/rabbitmq/rabbitmq-env.conf" -fi -[ -f /etc/rabbitmq/rabbitmq-env.conf ] && . /etc/rabbitmq/rabbitmq-env.conf diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server deleted file mode 100755 index 2f80eb96..00000000 --- a/scripts/rabbitmq-server +++ /dev/null @@ -1,117 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -SERVER_ERL_ARGS="+K true +A30 +P 1048576 \ --kernel inet_default_connect_options [{nodelay,true}]" -CONFIG_FILE=/etc/rabbitmq/rabbitmq -LOG_BASE=/var/log/rabbitmq -MNESIA_BASE=/var/lib/rabbitmq/mnesia -SERVER_START_ARGS= - -. `dirname $0`/rabbitmq-env - -DEFAULT_NODE_IP_ADDRESS=auto -DEFAULT_NODE_PORT=5672 -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} -[ "x" = "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} -if [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] -then - if [ "x" != "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_IP_ADDRESS=${DEFAULT_NODE_IP_ADDRESS} - fi -else - if [ "x" = "x$RABBITMQ_NODE_PORT" ] - then RABBITMQ_NODE_PORT=${DEFAULT_NODE_PORT} - fi -fi -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_SERVER_ERL_ARGS" ] && RABBITMQ_SERVER_ERL_ARGS=${SERVER_ERL_ARGS} -[ "x" = "x$RABBITMQ_CONFIG_FILE" ] && RABBITMQ_CONFIG_FILE=${CONFIG_FILE} -[ "x" = "x$RABBITMQ_LOG_BASE" ] && RABBITMQ_LOG_BASE=${LOG_BASE} -[ "x" = "x$RABBITMQ_MNESIA_BASE" ] && RABBITMQ_MNESIA_BASE=${MNESIA_BASE} -[ "x" = "x$RABBITMQ_SERVER_START_ARGS" ] && RABBITMQ_SERVER_START_ARGS=${SERVER_START_ARGS} - -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${MNESIA_DIR} -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME} - -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${PLUGINS_EXPAND_DIR} -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME}-plugins-expand - -[ "x" = "x$RABBITMQ_PLUGINS_DIR" ] && RABBITMQ_PLUGINS_DIR="${RABBITMQ_HOME}/plugins" - -## Log rotation -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS=${LOGS} -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}.log" -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS=${SASL_LOGS} -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}-sasl.log" -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=${BACKUP_EXTENSION} -[ "x" = "x$RABBITMQ_BACKUP_EXTENSION" ] && RABBITMQ_BACKUP_EXTENSION=".1" - -[ -f "${RABBITMQ_LOGS}" ] && cat "${RABBITMQ_LOGS}" >> "${RABBITMQ_LOGS}${RABBITMQ_BACKUP_EXTENSION}" -[ -f "${RABBITMQ_SASL_LOGS}" ] && cat "${RABBITMQ_SASL_LOGS}" >> "${RABBITMQ_SASL_LOGS}${RABBITMQ_BACKUP_EXTENSION}" - -RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' - -RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" -if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then - if erl \ - -pa "$RABBITMQ_EBIN_ROOT" \ - -noinput \ - -hidden \ - -s rabbit_prelaunch \ - -sname rabbitmqprelaunch$$ \ - -extra "$RABBITMQ_PLUGINS_DIR" "${RABBITMQ_PLUGINS_EXPAND_DIR}" "${RABBITMQ_NODENAME}" - then - RABBITMQ_BOOT_FILE="${RABBITMQ_PLUGINS_EXPAND_DIR}/rabbit" - RABBITMQ_EBIN_PATH="" - else - exit 1 - fi -else - RABBITMQ_BOOT_FILE=start_sasl - RABBITMQ_EBIN_PATH="-pa ${RABBITMQ_EBIN_ROOT}" -fi -RABBITMQ_CONFIG_ARG= -[ -f "${RABBITMQ_CONFIG_FILE}.config" ] && RABBITMQ_CONFIG_ARG="-config ${RABBITMQ_CONFIG_FILE}" - -RABBITMQ_LISTEN_ARG= -[ "x" != "x$RABBITMQ_NODE_PORT" ] && [ "x" != "x$RABBITMQ_NODE_IP_ADDRESS" ] && RABBITMQ_LISTEN_ARG="-rabbit tcp_listeners [{\""${RABBITMQ_NODE_IP_ADDRESS}"\","${RABBITMQ_NODE_PORT}"}]" - -# we need to turn off path expansion because some of the vars, notably -# RABBITMQ_SERVER_ERL_ARGS, contain terms that look like globs and -# there is no other way of preventing their expansion. -set -f - -exec erl \ - ${RABBITMQ_EBIN_PATH} \ - ${RABBITMQ_START_RABBIT} \ - -sname ${RABBITMQ_NODENAME} \ - -boot ${RABBITMQ_BOOT_FILE} \ - ${RABBITMQ_CONFIG_ARG} \ - +W w \ - ${RABBITMQ_SERVER_ERL_ARGS} \ - ${RABBITMQ_LISTEN_ARG} \ - -sasl errlog_type error \ - -kernel error_logger '{file,"'${RABBITMQ_LOGS}'"}' \ - -sasl sasl_error_logger '{file,"'${RABBITMQ_SASL_LOGS}'"}' \ - -os_mon start_cpu_sup true \ - -os_mon start_disksup false \ - -os_mon start_memsup false \ - -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \ - ${RABBITMQ_SERVER_START_ARGS} \ - "$@" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat deleted file mode 100644 index 5e2097db..00000000 --- a/scripts/rabbitmq-server.bat +++ /dev/null @@ -1,156 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\RabbitMQ -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based of size...) is left as an exercice for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!-sasl.log - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS!!BACKUP_EXTENSION!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS!!BACKUP_EXTENSION!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --sname rabbitmqprelaunch!RANDOM! ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "!RABBITMQ_NODENAME!" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners [{\""!RABBITMQ_NODE_IP_ADDRESS!"\","!RABBITMQ_NODE_PORT!"}] - ) -) - -"!ERLANG_HOME!\bin\erl.exe" ^ -!RABBITMQ_EBIN_PATH! ^ --noinput ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --sname !RABBITMQ_NODENAME! ^ --s rabbit ^ -+W w ^ -+A30 ^ -+P 1048576 ^ --kernel inet_default_connect_options "[{nodelay, true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!LOGS:\=/!"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!SASL_LOGS:\=/!"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -endlocal -endlocal diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat deleted file mode 100644 index b2aa4f58..00000000 --- a/scripts/rabbitmq-service.bat +++ /dev/null @@ -1,245 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TN0=%~n0 -set TDP0=%~dp0 -set P1=%1 -set STAR=%* -setlocal enabledelayedexpansion - -if "!RABBITMQ_SERVICENAME!"=="" ( - set RABBITMQ_SERVICENAME=RabbitMQ -) - -if "!RABBITMQ_BASE!"=="" ( - set RABBITMQ_BASE=!APPDATA!\!RABBITMQ_SERVICENAME! -) - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_IP_ADDRESS=auto - ) -) else ( - if "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_NODE_PORT=5672 - ) -) - -if "!ERLANG_SERVICE_MANAGER_PATH!"=="" ( - if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B - ) - for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\erlsrv.exe" ( - set ERLANG_SERVICE_MANAGER_PATH=!ERLANG_HOME!\%%i\bin - ) -) - -set CONSOLE_FLAG= -set CONSOLE_LOG_VALID= -for %%i in (new reuse) do if "%%i" == "!RABBITMQ_CONSOLE_LOG!" set CONSOLE_LOG_VALID=TRUE -if "!CONSOLE_LOG_VALID!" == "TRUE" ( - set CONSOLE_FLAG=-debugtype !RABBITMQ_CONSOLE_LOG! -) - -rem *** End of configuration *** - -if not exist "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" ( - echo. - echo ********************************************** - echo ERLANG_SERVICE_MANAGER_PATH not set correctly. - echo ********************************************** - echo. - echo "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv.exe" not found - echo Please set ERLANG_SERVICE_MANAGER_PATH to the folder containing "erlsrv.exe". - echo. - exit /B 1 -) - -rem erlang prefers forwardslash as separator in paths -set RABBITMQ_BASE_UNIX=!RABBITMQ_BASE:\=/! - -if "!RABBITMQ_MNESIA_BASE!"=="" ( - set RABBITMQ_MNESIA_BASE=!RABBITMQ_BASE_UNIX!/db -) -if "!RABBITMQ_LOG_BASE!"=="" ( - set RABBITMQ_LOG_BASE=!RABBITMQ_BASE_UNIX!/log -) - - -rem We save the previous logs in their respective backup -rem Log management (rotation, filtering based on size...) is left as an exercise for the user. - -set BACKUP_EXTENSION=.1 - -set LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!.log -set SASL_LOGS=!RABBITMQ_LOG_BASE!\!RABBITMQ_NODENAME!-sasl.log - -if exist "!LOGS!" ( - type "!LOGS!" >> "!LOGS!!BACKUP_EXTENSION!" -) -if exist "!SASL_LOGS!" ( - type "!SASL_LOGS!" >> "!SASL_LOGS!!BACKUP_EXTENSION!" -) - -rem End of log management - - -if "!RABBITMQ_MNESIA_DIR!"=="" ( - set RABBITMQ_MNESIA_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-mnesia -) - -if "!RABBITMQ_PLUGINS_EXPAND_DIR!"=="" ( - set RABBITMQ_PLUGINS_EXPAND_DIR=!RABBITMQ_MNESIA_BASE!/!RABBITMQ_NODENAME!-plugins-expand -) - -if "!P1!" == "install" goto INSTALL_SERVICE -for %%i in (start stop disable enable list remove) do if "%%i" == "!P1!" goto MODIFY_SERVICE - -echo. -echo ********************* -echo Service control usage -echo ********************* -echo. -echo !TN0! help - Display this help -echo !TN0! install - Install the !RABBITMQ_SERVICENAME! service -echo !TN0! remove - Remove the !RABBITMQ_SERVICENAME! service -echo. -echo The following actions can also be accomplished by using -echo Windows Services Management Console (services.msc): -echo. -echo !TN0! start - Start the !RABBITMQ_SERVICENAME! service -echo !TN0! stop - Stop the !RABBITMQ_SERVICENAME! service -echo !TN0! disable - Disable the !RABBITMQ_SERVICENAME! service -echo !TN0! enable - Enable the !RABBITMQ_SERVICENAME! service -echo. -exit /B - - -:INSTALL_SERVICE - -if not exist "!RABBITMQ_BASE!" ( - echo Creating base directory !RABBITMQ_BASE! & md "!RABBITMQ_BASE!" -) - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" list !RABBITMQ_SERVICENAME! 2>NUL 1>NUL -if errorlevel 1 ( - "!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" add !RABBITMQ_SERVICENAME! -) else ( - echo !RABBITMQ_SERVICENAME! service is already present - only updating service parameters -) - -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin - -"!ERLANG_HOME!\bin\erl.exe" ^ --pa "!RABBITMQ_EBIN_ROOT!" ^ --noinput -hidden ^ --s rabbit_prelaunch ^ --extra "!RABBITMQ_PLUGINS_DIR:\=/!" ^ - "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ - "" - -set RABBITMQ_BOOT_FILE=!RABBITMQ_PLUGINS_EXPAND_DIR!\rabbit -if ERRORLEVEL 1 ( - exit /B 1 -) - -set RABBITMQ_EBIN_PATH= - -if "!RABBITMQ_CONFIG_FILE!"=="" ( - set RABBITMQ_CONFIG_FILE=!RABBITMQ_BASE!\rabbitmq -) - -if exist "!RABBITMQ_CONFIG_FILE!.config" ( - set RABBITMQ_CONFIG_ARG=-config "!RABBITMQ_CONFIG_FILE!" -) else ( - set RABBITMQ_CONFIG_ARG= -) - -set RABBITMQ_LISTEN_ARG= -if not "!RABBITMQ_NODE_IP_ADDRESS!"=="" ( - if not "!RABBITMQ_NODE_PORT!"=="" ( - set RABBITMQ_LISTEN_ARG=-rabbit tcp_listeners "[{\"!RABBITMQ_NODE_IP_ADDRESS!\", !RABBITMQ_NODE_PORT!}]" - ) -) - -set ERLANG_SERVICE_ARGUMENTS= ^ -!RABBITMQ_EBIN_PATH! ^ --boot "!RABBITMQ_BOOT_FILE!" ^ -!RABBITMQ_CONFIG_ARG! ^ --s rabbit ^ -+W w ^ -+A30 ^ --kernel inet_default_connect_options "[{nodelay,true}]" ^ -!RABBITMQ_LISTEN_ARG! ^ --kernel error_logger {file,\""!LOGS:\=/!"\"} ^ -!RABBITMQ_SERVER_ERL_ARGS! ^ --sasl errlog_type error ^ --sasl sasl_error_logger {file,\""!SASL_LOGS:\=/!"\"} ^ --os_mon start_cpu_sup true ^ --os_mon start_disksup false ^ --os_mon start_memsup false ^ --mnesia dir \""!RABBITMQ_MNESIA_DIR!"\" ^ -!RABBITMQ_SERVER_START_ARGS! ^ -!STAR! - -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:\=\\! -set ERLANG_SERVICE_ARGUMENTS=!ERLANG_SERVICE_ARGUMENTS:"=\"! - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" set !RABBITMQ_SERVICENAME! ^ --machine "!ERLANG_SERVICE_MANAGER_PATH!\erl.exe" ^ --env ERL_CRASH_DUMP="!RABBITMQ_BASE_UNIX!/erl_crash.dump" ^ --workdir "!RABBITMQ_BASE!" ^ --stopaction "rabbit:stop_and_halt()." ^ --sname !RABBITMQ_NODENAME! ^ -!CONSOLE_FLAG! ^ --comment "A robust and scalable messaging broker" ^ --args "!ERLANG_SERVICE_ARGUMENTS!" > NUL - -goto END - - -:MODIFY_SERVICE - -"!ERLANG_SERVICE_MANAGER_PATH!\erlsrv" !P1! !RABBITMQ_SERVICENAME! -goto END - - -:END - -endlocal -endlocal diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl deleted file mode 100755 index 9a11c3b3..00000000 --- a/scripts/rabbitmqctl +++ /dev/null @@ -1,31 +0,0 @@ -#!/bin/sh -## The contents of this file are subject to the Mozilla Public License -## Version 1.1 (the "License"); you may not use this file except in -## compliance with the License. You may obtain a copy of the License -## at http://www.mozilla.org/MPL/ -## -## Software distributed under the License is distributed on an "AS IS" -## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -## the License for the specific language governing rights and -## limitations under the License. -## -## The Original Code is RabbitMQ. -## -## The Initial Developer of the Original Code is VMware, Inc. -## Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -## - -. `dirname $0`/rabbitmq-env - -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} - -exec erl \ - -pa "${RABBITMQ_HOME}/ebin" \ - -noinput \ - -hidden \ - ${RABBITMQ_CTL_ERL_ARGS} \ - -sname rabbitmqctl$$ \ - -s rabbit_control \ - -nodename $RABBITMQ_NODENAME \ - -extra "$@" diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat deleted file mode 100644 index a74a91fd..00000000 --- a/scripts/rabbitmqctl.bat +++ /dev/null @@ -1,49 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -setlocal - -rem Preserve values that might contain exclamation marks before -rem enabling delayed expansion -set TDP0=%~dp0 -set STAR=%* -setlocal enabledelayedexpansion - -if "!COMPUTERNAME!"=="" ( - set COMPUTERNAME=localhost -) - -if "!RABBITMQ_NODENAME!"=="" ( - set RABBITMQ_NODENAME=rabbit@!COMPUTERNAME! -) - -if not exist "!ERLANG_HOME!\bin\erl.exe" ( - echo. - echo ****************************** - echo ERLANG_HOME not set correctly. - echo ****************************** - echo. - echo Please either set ERLANG_HOME to point to your Erlang installation or place the - echo RabbitMQ server distribution in the Erlang lib folder. - echo. - exit /B -) - -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! - -endlocal -endlocal diff --git a/src/bpqueue.erl b/src/bpqueue.erl deleted file mode 100644 index 71a34262..00000000 --- a/src/bpqueue.erl +++ /dev/null @@ -1,271 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(bpqueue). - -%% Block-prefixed queue. From the perspective of the queue interface -%% the datastructure acts like a regular queue where each value is -%% paired with the prefix. -%% -%% This is implemented as a queue of queues, which is more space and -%% time efficient, whilst supporting the normal queue interface. Each -%% inner queue has a prefix, which does not need to be unique, and it -%% is guaranteed that no two consecutive blocks have the same -%% prefix. len/1 returns the flattened length of the queue and is -%% O(1). - --export([new/0, is_empty/1, len/1, in/3, in_r/3, out/1, out_r/1, join/2, - foldl/3, foldr/3, from_list/1, to_list/1, map_fold_filter_l/4, - map_fold_filter_r/4]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([bpqueue/0]). - --type(bpqueue() :: {non_neg_integer(), queue()}). --type(prefix() :: any()). --type(value() :: any()). --type(result() :: ({'empty', bpqueue()} | - {{'value', prefix(), value()}, bpqueue()})). - --spec(new/0 :: () -> bpqueue()). --spec(is_empty/1 :: (bpqueue()) -> boolean()). --spec(len/1 :: (bpqueue()) -> non_neg_integer()). --spec(in/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(in_r/3 :: (prefix(), value(), bpqueue()) -> bpqueue()). --spec(out/1 :: (bpqueue()) -> result()). --spec(out_r/1 :: (bpqueue()) -> result()). --spec(join/2 :: (bpqueue(), bpqueue()) -> bpqueue()). --spec(foldl/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(foldr/3 :: (fun ((prefix(), value(), B) -> B), B, bpqueue()) -> B). --spec(from_list/1 :: ([{prefix(), [value()]}]) -> bpqueue()). --spec(to_list/1 :: (bpqueue()) -> [{prefix(), [value()]}]). --spec(map_fold_filter_l/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). --spec(map_fold_filter_r/4 :: ((fun ((prefix()) -> boolean())), - (fun ((value(), B) -> - ({prefix(), value(), B} | 'stop'))), - B, - bpqueue()) -> - {bpqueue(), B}). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> {0, queue:new()}. - -is_empty({0, _Q}) -> true; -is_empty(_BPQ) -> false. - -len({N, _Q}) -> N. - -in(Prefix, Value, {0, Q}) -> - {1, queue:in({Prefix, queue:from_list([Value])}, Q)}; -in(Prefix, Value, BPQ) -> - in1({fun queue:in/2, fun queue:out_r/1}, Prefix, Value, BPQ). - -in_r(Prefix, Value, BPQ = {0, _Q}) -> - in(Prefix, Value, BPQ); -in_r(Prefix, Value, BPQ) -> - in1({fun queue:in_r/2, fun queue:out/1}, Prefix, Value, BPQ). - -in1({In, Out}, Prefix, Value, {N, Q}) -> - {N+1, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, In(Value, InnerQ)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, queue:in(Value, queue:new())}, Q) - end}. - -in_q(Prefix, Queue, BPQ = {0, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - N -> {N, queue:in({Prefix, Queue}, Q)} - end; -in_q(Prefix, Queue, BPQ) -> - in_q1({fun queue:in/2, fun queue:out_r/1, - fun queue:join/2}, - Prefix, Queue, BPQ). - -in_q_r(Prefix, Queue, BPQ = {0, _Q}) -> - in_q(Prefix, Queue, BPQ); -in_q_r(Prefix, Queue, BPQ) -> - in_q1({fun queue:in_r/2, fun queue:out/1, - fun (T, H) -> queue:join(H, T) end}, - Prefix, Queue, BPQ). - -in_q1({In, Out, Join}, Prefix, Queue, BPQ = {N, Q}) -> - case queue:len(Queue) of - 0 -> BPQ; - M -> {N + M, case Out(Q) of - {{value, {Prefix, InnerQ}}, Q1} -> - In({Prefix, Join(InnerQ, Queue)}, Q1); - {{value, {_Prefix, _InnerQ}}, _Q1} -> - In({Prefix, Queue}, Q) - end} - end. - -out({0, _Q} = BPQ) -> {empty, BPQ}; -out(BPQ) -> out1({fun queue:in_r/2, fun queue:out/1}, BPQ). - -out_r({0, _Q} = BPQ) -> {empty, BPQ}; -out_r(BPQ) -> out1({fun queue:in/2, fun queue:out_r/1}, BPQ). - -out1({In, Out}, {N, Q}) -> - {{value, {Prefix, InnerQ}}, Q1} = Out(Q), - {{value, Value}, InnerQ1} = Out(InnerQ), - Q2 = case queue:is_empty(InnerQ1) of - true -> Q1; - false -> In({Prefix, InnerQ1}, Q1) - end, - {{value, Prefix, Value}, {N-1, Q2}}. - -join({0, _Q}, BPQ) -> - BPQ; -join(BPQ, {0, _Q}) -> - BPQ; -join({NHead, QHead}, {NTail, QTail}) -> - {{value, {Prefix, InnerQHead}}, QHead1} = queue:out_r(QHead), - {NHead + NTail, - case queue:out(QTail) of - {{value, {Prefix, InnerQTail}}, QTail1} -> - queue:join( - queue:in({Prefix, queue:join(InnerQHead, InnerQTail)}, QHead1), - QTail1); - {{value, {_Prefix, _InnerQTail}}, _QTail1} -> - queue:join(QHead, QTail) - end}. - -foldl(_Fun, Init, {0, _Q}) -> Init; -foldl( Fun, Init, {_N, Q}) -> fold1(fun queue:out/1, Fun, Init, Q). - -foldr(_Fun, Init, {0, _Q}) -> Init; -foldr( Fun, Init, {_N, Q}) -> fold1(fun queue:out_r/1, Fun, Init, Q). - -fold1(Out, Fun, Init, Q) -> - case Out(Q) of - {empty, _Q} -> - Init; - {{value, {Prefix, InnerQ}}, Q1} -> - fold1(Out, Fun, fold1(Out, Fun, Prefix, Init, InnerQ), Q1) - end. - -fold1(Out, Fun, Prefix, Init, InnerQ) -> - case Out(InnerQ) of - {empty, _Q} -> - Init; - {{value, Value}, InnerQ1} -> - fold1(Out, Fun, Prefix, Fun(Prefix, Value, Init), InnerQ1) - end. - -from_list(List) -> - {FinalPrefix, FinalInnerQ, ListOfPQs1, Len} = - lists:foldl( - fun ({_Prefix, []}, Acc) -> - Acc; - ({Prefix, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix, queue:join(InnerQ, queue:from_list(InnerList)), - ListOfPQs, LenAcc + length(InnerList)}; - ({Prefix1, InnerList}, {Prefix, InnerQ, ListOfPQs, LenAcc}) -> - {Prefix1, queue:from_list(InnerList), - [{Prefix, InnerQ} | ListOfPQs], LenAcc + length(InnerList)} - end, {undefined, queue:new(), [], 0}, List), - ListOfPQs2 = [{FinalPrefix, FinalInnerQ} | ListOfPQs1], - [{undefined, InnerQ1} | Rest] = All = lists:reverse(ListOfPQs2), - {Len, queue:from_list(case queue:is_empty(InnerQ1) of - true -> Rest; - false -> All - end)}. - -to_list({0, _Q}) -> []; -to_list({_N, Q}) -> [{Prefix, queue:to_list(InnerQ)} || - {Prefix, InnerQ} <- queue:to_list(Q)]. - -%% map_fold_filter_[lr](FilterFun, Fun, Init, BPQ) -> {BPQ, Init} -%% where FilterFun(Prefix) -> boolean() -%% Fun(Value, Init) -> {Prefix, Value, Init} | stop -%% -%% The filter fun allows you to skip very quickly over blocks that -%% you're not interested in. Such blocks appear in the resulting bpq -%% without modification. The Fun is then used both to map the value, -%% which also allows you to change the prefix (and thus block) of the -%% value, and also to modify the Init/Acc (just like a fold). If the -%% Fun returns 'stop' then it is not applied to any further items. -map_fold_filter_l(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_l(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out/1, fun queue:in/2, - fun in_q/3, fun join/2}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter_r(_PFilter, _Fun, Init, BPQ = {0, _Q}) -> - {BPQ, Init}; -map_fold_filter_r(PFilter, Fun, Init, {N, Q}) -> - map_fold_filter1({fun queue:out_r/1, fun queue:in_r/2, - fun in_q_r/3, fun (T, H) -> join(H, T) end}, - N, PFilter, Fun, Init, Q, new()). - -map_fold_filter1(Funs = {Out, _In, InQ, Join}, Len, PFilter, Fun, - Init, Q, QNew) -> - case Out(Q) of - {empty, _Q} -> - {QNew, Init}; - {{value, {Prefix, InnerQ}}, Q1} -> - case PFilter(Prefix) of - true -> - {Init1, QNew1, Cont} = - map_fold_filter2(Funs, Fun, Prefix, Prefix, - Init, InnerQ, QNew, queue:new()), - case Cont of - false -> {Join(QNew1, {Len - len(QNew1), Q1}), Init1}; - true -> map_fold_filter1(Funs, Len, PFilter, Fun, - Init1, Q1, QNew1) - end; - false -> - map_fold_filter1(Funs, Len, PFilter, Fun, - Init, Q1, InQ(Prefix, InnerQ, QNew)) - end - end. - -map_fold_filter2(Funs = {Out, In, InQ, _Join}, Fun, OrigPrefix, Prefix, - Init, InnerQ, QNew, InnerQNew) -> - case Out(InnerQ) of - {empty, _Q} -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), true}; - {{value, Value}, InnerQ1} -> - case Fun(Value, Init) of - stop -> - {Init, InQ(OrigPrefix, InnerQ, - InQ(Prefix, InnerQNew, QNew)), false}; - {Prefix1, Value1, Init1} -> - {Prefix2, QNew1, InnerQNew1} = - case Prefix1 =:= Prefix of - true -> {Prefix, QNew, In(Value1, InnerQNew)}; - false -> {Prefix1, InQ(Prefix, InnerQNew, QNew), - In(Value1, queue:new())} - end, - map_fold_filter2(Funs, Fun, OrigPrefix, Prefix2, - Init1, InnerQ1, QNew1, InnerQNew1) - end - end. diff --git a/src/delegate.erl b/src/delegate.erl deleted file mode 100644 index 17046201..00000000 --- a/src/delegate.erl +++ /dev/null @@ -1,154 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate). - --behaviour(gen_server2). - --export([start_link/1, invoke_no_result/2, invoke/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: - (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). --spec(invoke_no_result/2 :: - (pid() | [pid()], fun ((pid()) -> any())) -> 'ok'). --spec(invoke/2 :: - ( pid(), fun ((pid()) -> A)) -> A; - ([pid()], fun ((pid()) -> A)) -> {[{pid(), A}], - [{pid(), term()}]}). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(Num) -> - gen_server2:start_link({local, delegate_name(Num)}, ?MODULE, [], []). - -invoke(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - Fun(Pid); -invoke(Pid, Fun) when is_pid(Pid) -> - case invoke([Pid], Fun) of - {[{Pid, Result}], []} -> - Result; - {[], [{Pid, {Class, Reason, StackTrace}}]} -> - erlang:raise(Class, Reason, StackTrace) - end; - -invoke(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - %% The use of multi_call is only safe because the timeout is - %% infinity, and thus there is no process spawned in order to do - %% the sending. Thus calls can't overtake preceding calls/casts. - {Replies, BadNodes} = - case orddict:fetch_keys(Grouped) of - [] -> {[], []}; - RemoteNodes -> gen_server2:multi_call( - RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}, infinity) - end, - BadPids = [{Pid, {exit, {nodedown, BadNode}, []}} || - BadNode <- BadNodes, - Pid <- orddict:fetch(BadNode, Grouped)], - ResultsNoNode = lists:append([safe_invoke(LocalPids, Fun) | - [Results || {_Node, Results} <- Replies]]), - lists:foldl( - fun ({ok, Pid, Result}, {Good, Bad}) -> {[{Pid, Result} | Good], Bad}; - ({error, Pid, Error}, {Good, Bad}) -> {Good, [{Pid, Error} | Bad]} - end, {[], BadPids}, ResultsNoNode). - -invoke_no_result(Pid, Fun) when is_pid(Pid) andalso node(Pid) =:= node() -> - safe_invoke(Pid, Fun), %% we don't care about any error - ok; -invoke_no_result(Pid, Fun) when is_pid(Pid) -> - invoke_no_result([Pid], Fun); - -invoke_no_result(Pids, Fun) when is_list(Pids) -> - {LocalPids, Grouped} = group_pids_by_node(Pids), - case orddict:fetch_keys(Grouped) of - [] -> ok; - RemoteNodes -> gen_server2:abcast(RemoteNodes, delegate(RemoteNodes), - {invoke, Fun, Grouped}) - end, - safe_invoke(LocalPids, Fun), %% must not die - ok. - -%%---------------------------------------------------------------------------- - -group_pids_by_node(Pids) -> - LocalNode = node(), - lists:foldl( - fun (Pid, {Local, Remote}) when node(Pid) =:= LocalNode -> - {[Pid | Local], Remote}; - (Pid, {Local, Remote}) -> - {Local, - orddict:update( - node(Pid), fun (List) -> [Pid | List] end, [Pid], Remote)} - end, {[], orddict:new()}, Pids). - -delegate_name(Hash) -> - list_to_atom("delegate_" ++ integer_to_list(Hash)). - -delegate(RemoteNodes) -> - case get(delegate) of - undefined -> Name = delegate_name( - erlang:phash2(self(), - delegate_sup:count(RemoteNodes))), - put(delegate, Name), - Name; - Name -> Name - end. - -safe_invoke(Pids, Fun) when is_list(Pids) -> - [safe_invoke(Pid, Fun) || Pid <- Pids]; -safe_invoke(Pid, Fun) when is_pid(Pid) -> - try - {ok, Pid, Fun(Pid)} - catch Class:Reason -> - {error, Pid, {Class, Reason, erlang:get_stacktrace()}} - end. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, node(), hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({invoke, Fun, Grouped}, _From, Node) -> - {reply, safe_invoke(orddict:fetch(Node, Grouped), Fun), Node, hibernate}. - -handle_cast({invoke, Fun, Grouped}, Node) -> - safe_invoke(orddict:fetch(Node, Grouped), Fun), - {noreply, Node, hibernate}. - -handle_info(_Info, Node) -> - {noreply, Node, hibernate}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, Node, _Extra) -> - {ok, Node}. diff --git a/src/delegate_sup.erl b/src/delegate_sup.erl deleted file mode 100644 index fc693c7d..00000000 --- a/src/delegate_sup.erl +++ /dev/null @@ -1,59 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(delegate_sup). - --behaviour(supervisor). - --export([start_link/1, count/1]). - --export([init/1]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (integer()) -> {'ok', pid()} | {'error', any()}). --spec(count/1 :: ([node()]) -> integer()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Count) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [Count]). - -count([]) -> - 1; -count([Node | Nodes]) -> - try - length(supervisor:which_children({?SERVER, Node})) - catch exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - count(Nodes); - exit:{R, _} when R =:= noproc; R =:= normal; R =:= shutdown; - R =:= nodedown -> - count(Nodes) - end. - -%%---------------------------------------------------------------------------- - -init([Count]) -> - {ok, {{one_for_one, 10, 10}, - [{Num, {delegate, start_link, [Num]}, - transient, 16#ffffffff, worker, [delegate]} || - Num <- lists:seq(0, Count - 1)]}}. diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl deleted file mode 100644 index 61b08d49..00000000 --- a/src/file_handle_cache.erl +++ /dev/null @@ -1,1197 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(file_handle_cache). - -%% A File Handle Cache -%% -%% This extends a subset of the functionality of the Erlang file -%% module. In the below, we use "file handle" to specifically refer to -%% file handles, and "file descriptor" to refer to descriptors which -%% are not file handles, e.g. sockets. -%% -%% Some constraints -%% 1) This supports one writer, multiple readers per file. Nothing -%% else. -%% 2) Do not open the same file from different processes. Bad things -%% may happen, especially for writes. -%% 3) Writes are all appends. You cannot write to the middle of a -%% file, although you can truncate and then append if you want. -%% 4) Although there is a write buffer, there is no read buffer. Feel -%% free to use the read_ahead mode, but beware of the interaction -%% between that buffer and the write buffer. -%% -%% Some benefits -%% 1) You do not have to remember to call sync before close -%% 2) Buffering is much more flexible than with the plain file module, -%% and you can control when the buffer gets flushed out. This means -%% that you can rely on reads-after-writes working, without having to -%% call the expensive sync. -%% 3) Unnecessary calls to position and sync get optimised out. -%% 4) You can find out what your 'real' offset is, and what your -%% 'virtual' offset is (i.e. where the hdl really is, and where it -%% would be after the write buffer is written out). -%% 5) You can find out what the offset was when you last sync'd. -%% -%% There is also a server component which serves to limit the number -%% of open file descriptors. This is a hard limit: the server -%% component will ensure that clients do not have more file -%% descriptors open than it's configured to allow. -%% -%% On open, the client requests permission from the server to open the -%% required number of file handles. The server may ask the client to -%% close other file handles that it has open, or it may queue the -%% request and ask other clients to close file handles they have open -%% in order to satisfy the request. Requests are always satisfied in -%% the order they arrive, even if a latter request (for a small number -%% of file handles) can be satisfied before an earlier request (for a -%% larger number of file handles). On close, the client sends a -%% message to the server. These messages allow the server to keep -%% track of the number of open handles. The client also keeps a -%% gb_tree which is updated on every use of a file handle, mapping the -%% time at which the file handle was last used (timestamp) to the -%% handle. Thus the smallest key in this tree maps to the file handle -%% that has not been used for the longest amount of time. This -%% smallest key is included in the messages to the server. As such, -%% the server keeps track of when the least recently used file handle -%% was used *at the point of the most recent open or close* by each -%% client. -%% -%% Note that this data can go very out of date, by the client using -%% the least recently used handle. -%% -%% When the limit is exceeded (i.e. the number of open file handles is -%% at the limit and there are pending 'open' requests), the server -%% calculates the average age of the last reported least recently used -%% file handle of all the clients. It then tells all the clients to -%% close any handles not used for longer than this average, by -%% invoking the callback the client registered. The client should -%% receive this message and pass it into -%% set_maximum_since_use/1. However, it is highly possible this age -%% will be greater than the ages of all the handles the client knows -%% of because the client has used its file handles in the mean -%% time. Thus at this point the client reports to the server the -%% current timestamp at which its least recently used file handle was -%% last used. The server will check two seconds later that either it -%% is back under the limit, in which case all is well again, or if -%% not, it will calculate a new average age. Its data will be much -%% more recent now, and so it is very likely that when this is -%% communicated to the clients, the clients will close file handles. -%% (In extreme cases, where it's very likely that all clients have -%% used their open handles since they last sent in an update, which -%% would mean that the average will never cause any file handles to -%% be closed, the server can send out an average age of 0, resulting -%% in all available clients closing all their file handles.) -%% -%% Care is taken to ensure that (a) processes which are blocked -%% waiting for file descriptors to become available are not sent -%% requests to close file handles; and (b) given it is known how many -%% file handles a process has open, when the average age is forced to -%% 0, close messages are only sent to enough processes to release the -%% correct number of file handles and the list of processes is -%% randomly shuffled. This ensures we don't cause processes to -%% needlessly close file handles, and ensures that we don't always -%% make such requests of the same processes. -%% -%% The advantage of this scheme is that there is only communication -%% from the client to the server on open, close, and when in the -%% process of trying to reduce file handle usage. There is no -%% communication from the client to the server on normal file handle -%% operations. This scheme forms a feed-back loop - the server does -%% not care which file handles are closed, just that some are, and it -%% checks this repeatedly when over the limit. -%% -%% Handles which are closed as a result of the server are put into a -%% "soft-closed" state in which the handle is closed (data flushed out -%% and sync'd first) but the state is maintained. The handle will be -%% fully reopened again as soon as needed, thus users of this library -%% do not need to worry about their handles being closed by the server -%% - reopening them when necessary is handled transparently. -%% -%% The server also supports obtain and transfer. obtain/0 blocks until -%% a file descriptor is available, at which point the requesting -%% process is considered to 'own' one more descriptor. transfer/1 -%% transfers ownership of a file descriptor between processes. It is -%% non-blocking. Obtain is used to obtain permission to accept file -%% descriptors. Obtain has a lower limit, set by the ?OBTAIN_LIMIT/1 -%% macro. File handles can use the entire limit, but will be evicted -%% by obtain calls up to the point at which no more obtain calls can -%% be satisfied by the obtains limit. Thus there will always be some -%% capacity available for file handles. Processes that use obtain are -%% never asked to return them, and they are not managed in any way by -%% the server. It is simply a mechanism to ensure that processes that -%% need file descriptors such as sockets can do so in such a way that -%% the overall number of open file descriptors is managed. -%% -%% The callers of register_callback/3, obtain/0, and the argument of -%% transfer/1 are monitored, reducing the count of handles in use -%% appropriately when the processes terminate. - --behaviour(gen_server). - --export([register_callback/3]). --export([open/3, close/1, read/2, append/2, sync/1, position/2, truncate/1, - last_sync_offset/1, current_virtual_offset/1, current_raw_offset/1, - flush/1, copy/3, set_maximum_since_use/1, delete/1, clear/1]). --export([obtain/0, transfer/1, set_limit/1, get_limit/0, info_keys/0, info/0, - info/1]). --export([ulimit/0]). - --export([start_link/0, init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). --define(RESERVED_FOR_OTHERS, 100). - --define(FILE_HANDLES_LIMIT_OTHER, 1024). --define(FILE_HANDLES_CHECK_INTERVAL, 2000). - --define(OBTAIN_LIMIT(LIMIT), trunc((LIMIT * 0.9) - 2)). --define(CLIENT_ETS_TABLE, ?MODULE). - -%%---------------------------------------------------------------------------- - --record(file, - { reader_count, - has_writer - }). - --record(handle, - { hdl, - offset, - trusted_offset, - is_dirty, - write_buffer_size, - write_buffer_size_limit, - write_buffer, - at_eof, - path, - mode, - options, - is_write, - is_read, - last_used_at - }). - --record(fhc_state, - { elders, - limit, - open_count, - open_pending, - obtain_limit, - obtain_count, - obtain_pending, - clients, - timer_ref - }). - --record(cstate, - { pid, - callback, - opened, - obtained, - blocked, - pending_closes - }). - --record(pending, - { kind, - pid, - requested, - from - }). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(ref() :: any()). --type(ok_or_error() :: 'ok' | {'error', any()}). --type(val_or_error(T) :: {'ok', T} | {'error', any()}). --type(position() :: ('bof' | 'eof' | non_neg_integer() | - {('bof' |'eof'), non_neg_integer()} | - {'cur', integer()})). --type(offset() :: non_neg_integer()). - --spec(register_callback/3 :: (atom(), atom(), [any()]) -> 'ok'). --spec(open/3 :: - (string(), [any()], - [{'write_buffer', (non_neg_integer() | 'infinity' | 'unbuffered')}]) - -> val_or_error(ref())). --spec(close/1 :: (ref()) -> ok_or_error()). --spec(read/2 :: (ref(), non_neg_integer()) -> - val_or_error([char()] | binary()) | 'eof'). --spec(append/2 :: (ref(), iodata()) -> ok_or_error()). --spec(sync/1 :: (ref()) -> ok_or_error()). --spec(position/2 :: (ref(), position()) -> val_or_error(offset())). --spec(truncate/1 :: (ref()) -> ok_or_error()). --spec(last_sync_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_virtual_offset/1 :: (ref()) -> val_or_error(offset())). --spec(current_raw_offset/1 :: (ref()) -> val_or_error(offset())). --spec(flush/1 :: (ref()) -> ok_or_error()). --spec(copy/3 :: (ref(), ref(), non_neg_integer()) -> - val_or_error(non_neg_integer())). --spec(set_maximum_since_use/1 :: (non_neg_integer()) -> 'ok'). --spec(delete/1 :: (ref()) -> ok_or_error()). --spec(clear/1 :: (ref()) -> ok_or_error()). --spec(obtain/0 :: () -> 'ok'). --spec(transfer/1 :: (pid()) -> 'ok'). --spec(set_limit/1 :: (non_neg_integer()) -> 'ok'). --spec(get_limit/0 :: () -> non_neg_integer()). --spec(info_keys/0 :: () -> [atom()]). --spec(info/0 :: () -> [{atom(), any()}]). --spec(info/1 :: ([atom()]) -> [{atom(), any()}]). --spec(ulimit/0 :: () -> 'infinity' | 'unknown' | non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- --define(INFO_KEYS, [obtain_count, obtain_limit]). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], [{timeout, infinity}]). - -register_callback(M, F, A) - when is_atom(M) andalso is_atom(F) andalso is_list(A) -> - gen_server:cast(?SERVER, {register_callback, self(), {M, F, A}}). - -open(Path, Mode, Options) -> - Path1 = filename:absname(Path), - File1 = #file { reader_count = RCount, has_writer = HasWriter } = - case get({Path1, fhc_file}) of - File = #file {} -> File; - undefined -> #file { reader_count = 0, - has_writer = false } - end, - Mode1 = append_to_write(Mode), - IsWriter = is_writer(Mode1), - case IsWriter andalso HasWriter of - true -> {error, writer_exists}; - false -> {ok, Ref} = new_closed_handle(Path1, Mode1, Options), - case get_or_reopen([{Ref, new}]) of - {ok, [_Handle1]} -> - RCount1 = case is_reader(Mode1) of - true -> RCount + 1; - false -> RCount - end, - HasWriter1 = HasWriter orelse IsWriter, - put({Path1, fhc_file}, - File1 #file { reader_count = RCount1, - has_writer = HasWriter1 }), - {ok, Ref}; - Error -> - erase({Ref, fhc_handle}), - Error - end - end. - -close(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> ok; - Handle -> case hard_close(Handle) of - ok -> ok; - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -read(Ref, Count) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_read = false }]) -> - {error, not_open_for_reading}; - ([Handle = #handle { hdl = Hdl, offset = Offset }]) -> - case file:read(Hdl, Count) of - {ok, Data} = Obj -> Offset1 = Offset + iolist_size(Data), - {Obj, - [Handle #handle { offset = Offset1 }]}; - eof -> {eof, [Handle #handle { at_eof = true }]}; - Error -> {Error, [Handle]} - end - end). - -append(Ref, Data) -> - with_handles( - [Ref], - fun ([#handle { is_write = false }]) -> - {error, not_open_for_writing}; - ([Handle]) -> - case maybe_seek(eof, Handle) of - {{ok, _Offset}, #handle { hdl = Hdl, offset = Offset, - write_buffer_size_limit = 0, - at_eof = true } = Handle1} -> - Offset1 = Offset + iolist_size(Data), - {file:write(Hdl, Data), - [Handle1 #handle { is_dirty = true, offset = Offset1 }]}; - {{ok, _Offset}, #handle { write_buffer = WriteBuffer, - write_buffer_size = Size, - write_buffer_size_limit = Limit, - at_eof = true } = Handle1} -> - WriteBuffer1 = [Data | WriteBuffer], - Size1 = Size + iolist_size(Data), - Handle2 = Handle1 #handle { write_buffer = WriteBuffer1, - write_buffer_size = Size1 }, - case Limit =/= infinity andalso Size1 > Limit of - true -> {Result, Handle3} = write_buffer(Handle2), - {Result, [Handle3]}; - false -> {ok, [Handle2]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -sync(Ref) -> - with_flushed_handles( - [Ref], - fun ([#handle { is_dirty = false, write_buffer = [] }]) -> - ok; - ([Handle = #handle { hdl = Hdl, offset = Offset, - is_dirty = true, write_buffer = [] }]) -> - case file:sync(Hdl) of - ok -> {ok, [Handle #handle { trusted_offset = Offset, - is_dirty = false }]}; - Error -> {Error, [Handle]} - end - end). - -position(Ref, NewOffset) -> - with_flushed_handles( - [Ref], - fun ([Handle]) -> {Result, Handle1} = maybe_seek(NewOffset, Handle), - {Result, [Handle1]} - end). - -truncate(Ref) -> - with_flushed_handles( - [Ref], - fun ([Handle1 = #handle { hdl = Hdl, offset = Offset, - trusted_offset = TOffset }]) -> - case file:truncate(Hdl) of - ok -> TOffset1 = lists:min([Offset, TOffset]), - {ok, [Handle1 #handle { trusted_offset = TOffset1, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end - end). - -last_sync_offset(Ref) -> - with_handles([Ref], fun ([#handle { trusted_offset = TOffset }]) -> - {ok, TOffset} - end). - -current_virtual_offset(Ref) -> - with_handles([Ref], fun ([#handle { at_eof = true, is_write = true, - offset = Offset, - write_buffer_size = Size }]) -> - {ok, Offset + Size}; - ([#handle { offset = Offset }]) -> - {ok, Offset} - end). - -current_raw_offset(Ref) -> - with_handles([Ref], fun ([Handle]) -> {ok, Handle #handle.offset} end). - -flush(Ref) -> - with_flushed_handles([Ref], fun ([Handle]) -> {ok, [Handle]} end). - -copy(Src, Dest, Count) -> - with_flushed_handles( - [Src, Dest], - fun ([SHandle = #handle { is_read = true, hdl = SHdl, offset = SOffset }, - DHandle = #handle { is_write = true, hdl = DHdl, offset = DOffset }] - ) -> - case file:copy(SHdl, DHdl, Count) of - {ok, Count1} = Result1 -> - {Result1, - [SHandle #handle { offset = SOffset + Count1 }, - DHandle #handle { offset = DOffset + Count1, - is_dirty = true }]}; - Error -> - {Error, [SHandle, DHandle]} - end; - (_Handles) -> - {error, incorrect_handle_modes} - end). - -delete(Ref) -> - case erase({Ref, fhc_handle}) of - undefined -> - ok; - Handle = #handle { path = Path } -> - case hard_close(Handle #handle { is_dirty = false, - write_buffer = [] }) of - ok -> file:delete(Path); - {Error, Handle1} -> put_handle(Ref, Handle1), - Error - end - end. - -clear(Ref) -> - with_handles( - [Ref], - fun ([#handle { at_eof = true, write_buffer_size = 0, offset = 0 }]) -> - ok; - ([Handle]) -> - case maybe_seek(bof, Handle #handle { write_buffer = [], - write_buffer_size = 0 }) of - {{ok, 0}, Handle1 = #handle { hdl = Hdl }} -> - case file:truncate(Hdl) of - ok -> {ok, [Handle1 #handle {trusted_offset = 0, - at_eof = true }]}; - Error -> {Error, [Handle1]} - end; - {{error, _} = Error, Handle1} -> - {Error, [Handle1]} - end - end). - -set_maximum_since_use(MaximumAge) -> - Now = now(), - case lists:foldl( - fun ({{Ref, fhc_handle}, - Handle = #handle { hdl = Hdl, last_used_at = Then }}, Rep) -> - case Hdl =/= closed andalso - timer:now_diff(Now, Then) >= MaximumAge of - true -> soft_close(Ref, Handle) orelse Rep; - false -> Rep - end; - (_KeyValuePair, Rep) -> - Rep - end, false, get()) of - false -> age_tree_change(), ok; - true -> ok - end. - -obtain() -> - gen_server:call(?SERVER, {obtain, self()}, infinity). - -transfer(Pid) -> - gen_server:cast(?SERVER, {transfer, self(), Pid}). - -set_limit(Limit) -> - gen_server:call(?SERVER, {set_limit, Limit}, infinity). - -get_limit() -> - gen_server:call(?SERVER, get_limit, infinity). - -info_keys() -> ?INFO_KEYS. - -info() -> info(?INFO_KEYS). -info(Items) -> gen_server:call(?SERVER, {info, Items}, infinity). - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -is_reader(Mode) -> lists:member(read, Mode). - -is_writer(Mode) -> lists:member(write, Mode). - -append_to_write(Mode) -> - case lists:member(append, Mode) of - true -> [write | Mode -- [append, write]]; - false -> Mode - end. - -with_handles(Refs, Fun) -> - case get_or_reopen([{Ref, reopen} || Ref <- Refs]) of - {ok, Handles} -> - case Fun(Handles) of - {Result, Handles1} when is_list(Handles1) -> - lists:zipwith(fun put_handle/2, Refs, Handles1), - Result; - Result -> - Result - end; - Error -> - Error - end. - -with_flushed_handles(Refs, Fun) -> - with_handles( - Refs, - fun (Handles) -> - case lists:foldl( - fun (Handle, {ok, HandlesAcc}) -> - {Res, Handle1} = write_buffer(Handle), - {Res, [Handle1 | HandlesAcc]}; - (Handle, {Error, HandlesAcc}) -> - {Error, [Handle | HandlesAcc]} - end, {ok, []}, Handles) of - {ok, Handles1} -> - Fun(lists:reverse(Handles1)); - {Error, Handles1} -> - {Error, lists:reverse(Handles1)} - end - end). - -get_or_reopen(RefNewOrReopens) -> - case partition_handles(RefNewOrReopens) of - {OpenHdls, []} -> - {ok, [Handle || {_Ref, Handle} <- OpenHdls]}; - {OpenHdls, ClosedHdls} -> - Oldest = oldest(get_age_tree(), fun () -> now() end), - case gen_server:call(?SERVER, {open, self(), length(ClosedHdls), - Oldest}, infinity) of - ok -> - case reopen(ClosedHdls) of - {ok, RefHdls} -> sort_handles(RefNewOrReopens, - OpenHdls, RefHdls, []); - Error -> Error - end; - close -> - [soft_close(Ref, Handle) || - {{Ref, fhc_handle}, Handle = #handle { hdl = Hdl }} <- - get(), - Hdl =/= closed], - get_or_reopen(RefNewOrReopens) - end - end. - -reopen(ClosedHdls) -> reopen(ClosedHdls, get_age_tree(), []). - -reopen([], Tree, RefHdls) -> - put_age_tree(Tree), - {ok, lists:reverse(RefHdls)}; -reopen([{Ref, NewOrReopen, Handle = #handle { hdl = closed, - path = Path, - mode = Mode, - offset = Offset, - last_used_at = undefined }} | - RefNewOrReopenHdls] = ToOpen, Tree, RefHdls) -> - case file:open(Path, case NewOrReopen of - new -> Mode; - reopen -> [read | Mode] - end) of - {ok, Hdl} -> - Now = now(), - {{ok, Offset1}, Handle1} = - maybe_seek(Offset, Handle #handle { hdl = Hdl, - offset = 0, - last_used_at = Now }), - Handle2 = Handle1 #handle { trusted_offset = Offset1 }, - put({Ref, fhc_handle}, Handle2), - reopen(RefNewOrReopenHdls, gb_trees:insert(Now, Ref, Tree), - [{Ref, Handle2} | RefHdls]); - Error -> - %% NB: none of the handles in ToOpen are in the age tree - Oldest = oldest(Tree, fun () -> undefined end), - [gen_server:cast(?SERVER, {close, self(), Oldest}) || _ <- ToOpen], - put_age_tree(Tree), - Error - end. - -partition_handles(RefNewOrReopens) -> - lists:foldr( - fun ({Ref, NewOrReopen}, {Open, Closed}) -> - case get({Ref, fhc_handle}) of - #handle { hdl = closed } = Handle -> - {Open, [{Ref, NewOrReopen, Handle} | Closed]}; - #handle {} = Handle -> - {[{Ref, Handle} | Open], Closed} - end - end, {[], []}, RefNewOrReopens). - -sort_handles([], [], [], Acc) -> - {ok, lists:reverse(Acc)}; -sort_handles([{Ref, _} | RefHdls], [{Ref, Handle} | RefHdlsA], RefHdlsB, Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]); -sort_handles([{Ref, _} | RefHdls], RefHdlsA, [{Ref, Handle} | RefHdlsB], Acc) -> - sort_handles(RefHdls, RefHdlsA, RefHdlsB, [Handle | Acc]). - -put_handle(Ref, Handle = #handle { last_used_at = Then }) -> - Now = now(), - age_tree_update(Then, Now, Ref), - put({Ref, fhc_handle}, Handle #handle { last_used_at = Now }). - -with_age_tree(Fun) -> put_age_tree(Fun(get_age_tree())). - -get_age_tree() -> - case get(fhc_age_tree) of - undefined -> gb_trees:empty(); - AgeTree -> AgeTree - end. - -put_age_tree(Tree) -> put(fhc_age_tree, Tree). - -age_tree_update(Then, Now, Ref) -> - with_age_tree( - fun (Tree) -> - gb_trees:insert(Now, Ref, gb_trees:delete_any(Then, Tree)) - end). - -age_tree_delete(Then) -> - with_age_tree( - fun (Tree) -> - Tree1 = gb_trees:delete_any(Then, Tree), - Oldest = oldest(Tree1, fun () -> undefined end), - gen_server:cast(?SERVER, {close, self(), Oldest}), - Tree1 - end). - -age_tree_change() -> - with_age_tree( - fun (Tree) -> - case gb_trees:is_empty(Tree) of - true -> Tree; - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - gen_server:cast(?SERVER, {update, self(), Oldest}) - end, - Tree - end). - -oldest(Tree, DefaultFun) -> - case gb_trees:is_empty(Tree) of - true -> DefaultFun(); - false -> {Oldest, _Ref} = gb_trees:smallest(Tree), - Oldest - end. - -new_closed_handle(Path, Mode, Options) -> - WriteBufferSize = - case proplists:get_value(write_buffer, Options, unbuffered) of - unbuffered -> 0; - infinity -> infinity; - N when is_integer(N) -> N - end, - Ref = make_ref(), - put({Ref, fhc_handle}, #handle { hdl = closed, - offset = 0, - trusted_offset = 0, - is_dirty = false, - write_buffer_size = 0, - write_buffer_size_limit = WriteBufferSize, - write_buffer = [], - at_eof = false, - path = Path, - mode = Mode, - options = Options, - is_write = is_writer(Mode), - is_read = is_reader(Mode), - last_used_at = undefined }), - {ok, Ref}. - -soft_close(Ref, Handle) -> - {Res, Handle1} = soft_close(Handle), - case Res of - ok -> put({Ref, fhc_handle}, Handle1), - true; - _ -> put_handle(Ref, Handle1), - false - end. - -soft_close(Handle = #handle { hdl = closed }) -> - {ok, Handle}; -soft_close(Handle) -> - case write_buffer(Handle) of - {ok, #handle { hdl = Hdl, - offset = Offset, - is_dirty = IsDirty, - last_used_at = Then } = Handle1 } -> - ok = case IsDirty of - true -> file:sync(Hdl); - false -> ok - end, - ok = file:close(Hdl), - age_tree_delete(Then), - {ok, Handle1 #handle { hdl = closed, - trusted_offset = Offset, - is_dirty = false, - last_used_at = undefined }}; - {_Error, _Handle} = Result -> - Result - end. - -hard_close(Handle) -> - case soft_close(Handle) of - {ok, #handle { path = Path, - is_read = IsReader, is_write = IsWriter }} -> - #file { reader_count = RCount, has_writer = HasWriter } = File = - get({Path, fhc_file}), - RCount1 = case IsReader of - true -> RCount - 1; - false -> RCount - end, - HasWriter1 = HasWriter andalso not IsWriter, - case RCount1 =:= 0 andalso not HasWriter1 of - true -> erase({Path, fhc_file}); - false -> put({Path, fhc_file}, - File #file { reader_count = RCount1, - has_writer = HasWriter1 }) - end, - ok; - {_Error, _Handle} = Result -> - Result - end. - -maybe_seek(NewOffset, Handle = #handle { hdl = Hdl, offset = Offset, - at_eof = AtEoF }) -> - {AtEoF1, NeedsSeek} = needs_seek(AtEoF, Offset, NewOffset), - case (case NeedsSeek of - true -> file:position(Hdl, NewOffset); - false -> {ok, Offset} - end) of - {ok, Offset1} = Result -> - {Result, Handle #handle { offset = Offset1, at_eof = AtEoF1 }}; - {error, _} = Error -> - {Error, Handle} - end. - -needs_seek( AtEoF, _CurOffset, cur ) -> {AtEoF, false}; -needs_seek( AtEoF, _CurOffset, {cur, 0}) -> {AtEoF, false}; -needs_seek( true, _CurOffset, eof ) -> {true , false}; -needs_seek( true, _CurOffset, {eof, 0}) -> {true , false}; -needs_seek( false, _CurOffset, eof ) -> {true , true }; -needs_seek( false, _CurOffset, {eof, 0}) -> {true , true }; -needs_seek( AtEoF, 0, bof ) -> {AtEoF, false}; -needs_seek( AtEoF, 0, {bof, 0}) -> {AtEoF, false}; -needs_seek( AtEoF, CurOffset, CurOffset) -> {AtEoF, false}; -needs_seek( true, CurOffset, {bof, DesiredOffset}) - when DesiredOffset >= CurOffset -> - {true, true}; -needs_seek( true, _CurOffset, {cur, DesiredOffset}) - when DesiredOffset > 0 -> - {true, true}; -needs_seek( true, CurOffset, DesiredOffset) %% same as {bof, DO} - when is_integer(DesiredOffset) andalso DesiredOffset >= CurOffset -> - {true, true}; -%% because we can't really track size, we could well end up at EoF and not know -needs_seek(_AtEoF, _CurOffset, _DesiredOffset) -> - {false, true}. - -write_buffer(Handle = #handle { write_buffer = [] }) -> - {ok, Handle}; -write_buffer(Handle = #handle { hdl = Hdl, offset = Offset, - write_buffer = WriteBuffer, - write_buffer_size = DataSize, - at_eof = true }) -> - case file:write(Hdl, lists:reverse(WriteBuffer)) of - ok -> - Offset1 = Offset + DataSize, - {ok, Handle #handle { offset = Offset1, is_dirty = true, - write_buffer = [], write_buffer_size = 0 }}; - {error, _} = Error -> - {Error, Handle} - end. - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(obtain_count, #fhc_state{obtain_count = Count}) -> Count; -i(obtain_limit, #fhc_state{obtain_limit = Limit}) -> Limit; -i(Item, _) -> throw({bad_argument, Item}). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - Limit = case application:get_env(file_handles_high_watermark) of - {ok, Watermark} when (is_integer(Watermark) andalso - Watermark > 0) -> - Watermark; - _ -> - case ulimit() of - infinity -> infinity; - unknown -> ?FILE_HANDLES_LIMIT_OTHER; - Lim -> lists:max([2, Lim - ?RESERVED_FOR_OTHERS]) - end - end, - ObtainLimit = obtain_limit(Limit), - error_logger:info_msg("Limiting to approx ~p file handles (~p sockets)~n", - [Limit, ObtainLimit]), - Clients = ets:new(?CLIENT_ETS_TABLE, [set, private, {keypos, #cstate.pid}]), - {ok, #fhc_state { elders = dict:new(), - limit = Limit, - open_count = 0, - open_pending = pending_new(), - obtain_limit = ObtainLimit, - obtain_count = 0, - obtain_pending = pending_new(), - clients = Clients, - timer_ref = undefined }}. - -handle_call({open, Pid, Requested, EldestUnusedSince}, From, - State = #fhc_state { open_count = Count, - open_pending = Pending, - elders = Elders, - clients = Clients }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - Item = #pending { kind = open, - pid = Pid, - requested = Requested, - from = From }, - ok = track_client(Pid, Clients), - State1 = State #fhc_state { elders = Elders1 }, - case needs_reduce(State1 #fhc_state { open_count = Count + Requested }) of - true -> case ets:lookup(Clients, Pid) of - [#cstate { opened = 0 }] -> - true = ets:update_element( - Clients, Pid, {#cstate.blocked, true}), - {noreply, - reduce(State1 #fhc_state { - open_pending = pending_in(Item, Pending) })}; - [#cstate { opened = Opened }] -> - true = ets:update_element( - Clients, Pid, - {#cstate.pending_closes, Opened}), - {reply, close, State1} - end; - false -> {noreply, run_pending_item(Item, State1)} - end; - -handle_call({obtain, Pid}, From, State = #fhc_state { obtain_count = Count, - obtain_pending = Pending, - clients = Clients }) -> - ok = track_client(Pid, Clients), - Item = #pending { kind = obtain, pid = Pid, requested = 1, from = From }, - Enqueue = fun () -> - true = ets:update_element(Clients, Pid, - {#cstate.blocked, true}), - State #fhc_state { - obtain_pending = pending_in(Item, Pending) } - end, - {noreply, - case obtain_limit_reached(State) of - true -> Enqueue(); - false -> case needs_reduce(State #fhc_state { - obtain_count = Count + 1 }) of - true -> reduce(Enqueue()); - false -> adjust_alarm( - State, run_pending_item(Item, State)) - end - end}; - -handle_call({set_limit, Limit}, _From, State) -> - {reply, ok, adjust_alarm( - State, maybe_reduce( - process_pending( - State #fhc_state { - limit = Limit, - obtain_limit = obtain_limit(Limit) })))}; - -handle_call(get_limit, _From, State = #fhc_state { limit = Limit }) -> - {reply, Limit, State}; - -handle_call({info, Items}, _From, State) -> - {reply, infos(Items, State), State}. - -handle_cast({register_callback, Pid, MFA}, - State = #fhc_state { clients = Clients }) -> - ok = track_client(Pid, Clients), - true = ets:update_element(Clients, Pid, {#cstate.callback, MFA}), - {noreply, State}; - -handle_cast({update, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders }) - when EldestUnusedSince =/= undefined -> - Elders1 = dict:store(Pid, EldestUnusedSince, Elders), - %% don't call maybe_reduce from here otherwise we can create a - %% storm of messages - {noreply, State #fhc_state { elders = Elders1 }}; - -handle_cast({close, Pid, EldestUnusedSince}, - State = #fhc_state { elders = Elders, clients = Clients }) -> - Elders1 = case EldestUnusedSince of - undefined -> dict:erase(Pid, Elders); - _ -> dict:store(Pid, EldestUnusedSince, Elders) - end, - ets:update_counter(Clients, Pid, {#cstate.pending_closes, -1, 0, 0}), - {noreply, adjust_alarm(State, process_pending( - update_counts(open, Pid, -1, - State #fhc_state { elders = Elders1 })))}; - -handle_cast({transfer, FromPid, ToPid}, State) -> - ok = track_client(ToPid, State#fhc_state.clients), - {noreply, process_pending( - update_counts(obtain, ToPid, +1, - update_counts(obtain, FromPid, -1, State)))}; - -handle_cast(check_counts, State) -> - {noreply, maybe_reduce(State #fhc_state { timer_ref = undefined })}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #fhc_state { elders = Elders, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_pending = ObtainPending, - clients = Clients }) -> - [#cstate { opened = Opened, obtained = Obtained }] = - ets:lookup(Clients, Pid), - true = ets:delete(Clients, Pid), - FilterFun = fun (#pending { pid = Pid1 }) -> Pid1 =/= Pid end, - {noreply, adjust_alarm( - State, - process_pending( - State #fhc_state { - open_count = OpenCount - Opened, - open_pending = filter_pending(FilterFun, OpenPending), - obtain_count = ObtainCount - Obtained, - obtain_pending = filter_pending(FilterFun, ObtainPending), - elders = dict:erase(Pid, Elders) }))}. - -terminate(_Reason, State = #fhc_state { clients = Clients }) -> - ets:delete(Clients), - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% pending queue abstraction helpers -%%---------------------------------------------------------------------------- - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -filter_pending(Fun, {Count, Queue}) -> - {Delta, Queue1} = - queue_fold( - fun (Item = #pending { requested = Requested }, {DeltaN, QueueN}) -> - case Fun(Item) of - true -> {DeltaN, queue:in(Item, QueueN)}; - false -> {DeltaN - Requested, QueueN} - end - end, {0, queue:new()}, Queue), - {Count + Delta, Queue1}. - -pending_new() -> - {0, queue:new()}. - -pending_in(Item = #pending { requested = Requested }, {Count, Queue}) -> - {Count + Requested, queue:in(Item, Queue)}. - -pending_out({0, _Queue} = Pending) -> - {empty, Pending}; -pending_out({N, Queue}) -> - {{value, #pending { requested = Requested }} = Result, Queue1} = - queue:out(Queue), - {Result, {N - Requested, Queue1}}. - -pending_count({Count, _Queue}) -> - Count. - -pending_is_empty({0, _Queue}) -> - true; -pending_is_empty({_N, _Queue}) -> - false. - -%%---------------------------------------------------------------------------- -%% server helpers -%%---------------------------------------------------------------------------- - -obtain_limit(infinity) -> infinity; -obtain_limit(Limit) -> case ?OBTAIN_LIMIT(Limit) of - OLimit when OLimit < 0 -> 0; - OLimit -> OLimit - end. - -obtain_limit_reached(#fhc_state { obtain_limit = Limit, - obtain_count = Count}) -> - Limit =/= infinity andalso Count >= Limit. - -adjust_alarm(OldState, NewState) -> - case {obtain_limit_reached(OldState), obtain_limit_reached(NewState)} of - {false, true} -> alarm_handler:set_alarm({file_descriptor_limit, []}); - {true, false} -> alarm_handler:clear_alarm(file_descriptor_limit); - _ -> ok - end, - NewState. - -process_pending(State = #fhc_state { limit = infinity }) -> - State; -process_pending(State) -> - process_open(process_obtain(State)). - -process_open(State = #fhc_state { limit = Limit, - open_pending = Pending, - open_count = OpenCount, - obtain_count = ObtainCount }) -> - {Pending1, State1} = - process_pending(Pending, Limit - (ObtainCount + OpenCount), State), - State1 #fhc_state { open_pending = Pending1 }. - -process_obtain(State = #fhc_state { limit = Limit, - obtain_pending = Pending, - obtain_limit = ObtainLimit, - obtain_count = ObtainCount, - open_count = OpenCount }) -> - Quota = lists:min([ObtainLimit - ObtainCount, - Limit - (ObtainCount + OpenCount)]), - {Pending1, State1} = process_pending(Pending, Quota, State), - State1 #fhc_state { obtain_pending = Pending1 }. - -process_pending(Pending, Quota, State) when Quota =< 0 -> - {Pending, State}; -process_pending(Pending, Quota, State) -> - case pending_out(Pending) of - {empty, _Pending} -> - {Pending, State}; - {{value, #pending { requested = Requested }}, _Pending1} - when Requested > Quota -> - {Pending, State}; - {{value, #pending { requested = Requested } = Item}, Pending1} -> - process_pending(Pending1, Quota - Requested, - run_pending_item(Item, State)) - end. - -run_pending_item(#pending { kind = Kind, - pid = Pid, - requested = Requested, - from = From }, - State = #fhc_state { clients = Clients }) -> - gen_server:reply(From, ok), - true = ets:update_element(Clients, Pid, {#cstate.blocked, false}), - update_counts(Kind, Pid, Requested, State). - -update_counts(Kind, Pid, Delta, - State = #fhc_state { open_count = OpenCount, - obtain_count = ObtainCount, - clients = Clients }) -> - {OpenDelta, ObtainDelta} = update_counts1(Kind, Pid, Delta, Clients), - State #fhc_state { open_count = OpenCount + OpenDelta, - obtain_count = ObtainCount + ObtainDelta }. - -update_counts1(open, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.opened, Delta}), - {Delta, 0}; -update_counts1(obtain, Pid, Delta, Clients) -> - ets:update_counter(Clients, Pid, {#cstate.obtained, Delta}), - {0, Delta}. - -maybe_reduce(State) -> - case needs_reduce(State) of - true -> reduce(State); - false -> State - end. - -needs_reduce(#fhc_state { limit = Limit, - open_count = OpenCount, - open_pending = OpenPending, - obtain_count = ObtainCount, - obtain_limit = ObtainLimit, - obtain_pending = ObtainPending }) -> - Limit =/= infinity - andalso ((OpenCount + ObtainCount > Limit) - orelse (not pending_is_empty(OpenPending)) - orelse (ObtainCount < ObtainLimit - andalso not pending_is_empty(ObtainPending))). - -reduce(State = #fhc_state { open_pending = OpenPending, - obtain_pending = ObtainPending, - elders = Elders, - clients = Clients, - timer_ref = TRef }) -> - Now = now(), - {CStates, Sum, ClientCount} = - dict:fold(fun (Pid, Eldest, {CStatesAcc, SumAcc, CountAcc} = Accs) -> - [#cstate { pending_closes = PendingCloses, - opened = Opened, - blocked = Blocked } = CState] = - ets:lookup(Clients, Pid), - case Blocked orelse PendingCloses =:= Opened of - true -> Accs; - false -> {[CState | CStatesAcc], - SumAcc + timer:now_diff(Now, Eldest), - CountAcc + 1} - end - end, {[], 0, 0}, Elders), - case CStates of - [] -> ok; - _ -> case (Sum / ClientCount) - - (1000 * ?FILE_HANDLES_CHECK_INTERVAL) of - AverageAge when AverageAge > 0 -> - notify_age(CStates, AverageAge); - _ -> - notify_age0(Clients, CStates, - pending_count(OpenPending) + - pending_count(ObtainPending)) - end - end, - case TRef of - undefined -> {ok, TRef1} = timer:apply_after( - ?FILE_HANDLES_CHECK_INTERVAL, - gen_server, cast, [?SERVER, check_counts]), - State #fhc_state { timer_ref = TRef1 }; - _ -> State - end. - -notify_age(CStates, AverageAge) -> - lists:foreach( - fun (#cstate { callback = undefined }) -> ok; - (#cstate { callback = {M, F, A} }) -> apply(M, F, A ++ [AverageAge]) - end, CStates). - -notify_age0(Clients, CStates, Required) -> - case [CState || CState <- CStates, CState#cstate.callback =/= undefined] of - [] -> ok; - Notifications -> S = random:uniform(length(Notifications)), - {L1, L2} = lists:split(S, Notifications), - notify(Clients, Required, L2 ++ L1) - end. - -notify(_Clients, _Required, []) -> - ok; -notify(_Clients, Required, _Notifications) when Required =< 0 -> - ok; -notify(Clients, Required, [#cstate{ pid = Pid, - callback = {M, F, A}, - opened = Opened } | Notifications]) -> - apply(M, F, A ++ [0]), - ets:update_element(Clients, Pid, {#cstate.pending_closes, Opened}), - notify(Clients, Required - Opened, Notifications). - -track_client(Pid, Clients) -> - case ets:insert_new(Clients, #cstate { pid = Pid, - callback = undefined, - opened = 0, - obtained = 0, - blocked = false, - pending_closes = 0 }) of - true -> _MRef = erlang:monitor(process, Pid), - ok; - false -> ok - end. - - -%% To increase the number of file descriptors: on Windows set ERL_MAX_PORTS -%% environment variable, on Linux set `ulimit -n`. -ulimit() -> - case proplists:get_value(max_fds, erlang:system_info(check_io)) of - MaxFds when is_integer(MaxFds) andalso MaxFds > 1 -> - case os:type() of - {win32, _OsName} -> - %% On Windows max_fds is twice the number of open files: - %% https://github.com/yrashk/erlang/blob/e1282325ed75e52a98d5/erts/emulator/sys/win32/sys.c#L2459-2466 - MaxFds div 2; - _Any -> - %% For other operating systems trust Erlang. - MaxFds - end; - _ -> - unknown - end. diff --git a/src/gatherer.erl b/src/gatherer.erl deleted file mode 100644 index aa43e9a9..00000000 --- a/src/gatherer.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gatherer). - --behaviour(gen_server2). - --export([start_link/0, stop/1, fork/1, finish/1, in/2, out/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(stop/1 :: (pid()) -> 'ok'). --spec(fork/1 :: (pid()) -> 'ok'). --spec(finish/1 :: (pid()) -> 'ok'). --spec(in/2 :: (pid(), any()) -> 'ok'). --spec(out/1 :: (pid()) -> {'value', any()} | 'empty'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - --record(gstate, { forks, values, blocked }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link(?MODULE, [], [{timeout, infinity}]). - -stop(Pid) -> - gen_server2:call(Pid, stop, infinity). - -fork(Pid) -> - gen_server2:call(Pid, fork, infinity). - -finish(Pid) -> - gen_server2:cast(Pid, finish). - -in(Pid, Value) -> - gen_server2:cast(Pid, {in, Value}). - -out(Pid) -> - gen_server2:call(Pid, out, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #gstate { forks = 0, values = queue:new(), blocked = queue:new() }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}; - -handle_call(fork, _From, State = #gstate { forks = Forks }) -> - {reply, ok, State #gstate { forks = Forks + 1 }, hibernate}; - -handle_call(out, From, State = #gstate { forks = Forks, - values = Values, - blocked = Blocked }) -> - case queue:out(Values) of - {empty, _} -> - case Forks of - 0 -> {reply, empty, State, hibernate}; - _ -> {noreply, - State #gstate { blocked = queue:in(From, Blocked) }, - hibernate} - end; - {{value, _Value} = V, NewValues} -> - {reply, V, State #gstate { values = NewValues }, hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast(finish, State = #gstate { forks = Forks, blocked = Blocked }) -> - NewForks = Forks - 1, - NewBlocked = case NewForks of - 0 -> [gen_server2:reply(From, empty) || - From <- queue:to_list(Blocked)], - queue:new(); - _ -> Blocked - end, - {noreply, State #gstate { forks = NewForks, blocked = NewBlocked }, - hibernate}; - -handle_cast({in, Value}, State = #gstate { values = Values, - blocked = Blocked }) -> - {noreply, case queue:out(Blocked) of - {empty, _} -> - State #gstate { values = queue:in(Value, Values) }; - {{value, From}, NewBlocked} -> - gen_server2:reply(From, {value, Value}), - State #gstate { blocked = NewBlocked } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. diff --git a/src/gen_server2.erl b/src/gen_server2.erl deleted file mode 100644 index 35258139..00000000 --- a/src/gen_server2.erl +++ /dev/null @@ -1,1181 +0,0 @@ -%% This file is a copy of gen_server.erl from the R13B-1 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is gen_server2 -%% -%% 2) more efficient handling of selective receives in callbacks -%% gen_server2 processes drain their message queue into an internal -%% buffer before invoking any callback module functions. Messages are -%% dequeued from the buffer for processing. Thus the effective message -%% queue of a gen_server2 process is the concatenation of the internal -%% buffer and the real message queue. -%% As a result of the draining, any selective receive invoked inside a -%% callback is less likely to have to scan a large message queue. -%% -%% 3) gen_server2:cast is guaranteed to be order-preserving -%% The original code could reorder messages when communicating with a -%% process on a remote node that was not currently connected. -%% -%% 4) The callback module can optionally implement prioritise_call/3, -%% prioritise_cast/2 and prioritise_info/2. These functions take -%% Message, From and State or just Message and State and return a -%% single integer representing the priority attached to the message. -%% Messages with higher priorities are processed before requests with -%% lower priorities. The default priority is 0. -%% -%% 5) The callback module can optionally implement -%% handle_pre_hibernate/1 and handle_post_hibernate/1. These will be -%% called immediately prior to and post hibernation, respectively. If -%% handle_pre_hibernate returns {hibernate, NewState} then the process -%% will hibernate. If the module does not implement -%% handle_pre_hibernate/1 then the default action is to hibernate. -%% -%% 6) init can return a 4th arg, {backoff, InitialTimeout, -%% MinimumTimeout, DesiredHibernatePeriod} (all in -%% milliseconds). Then, on all callbacks which can return a timeout -%% (including init), timeout can be 'hibernate'. When this is the -%% case, the current timeout value will be used (initially, the -%% InitialTimeout supplied from init). After this timeout has -%% occurred, hibernation will occur as normal. Upon awaking, a new -%% current timeout value will be calculated. -%% -%% The purpose is that the gen_server2 takes care of adjusting the -%% current timeout value such that the process will increase the -%% timeout value repeatedly if it is unable to sleep for the -%% DesiredHibernatePeriod. If it is able to sleep for the -%% DesiredHibernatePeriod it will decrease the current timeout down to -%% the MinimumTimeout, so that the process is put to sleep sooner (and -%% hopefully stays asleep for longer). In short, should a process -%% using this receive a burst of messages, it should not hibernate -%% between those messages, but as the messages become less frequent, -%% the process will not only hibernate, it will do so sooner after -%% each message. -%% -%% When using this backoff mechanism, normal timeout values (i.e. not -%% 'hibernate') can still be used, and if they are used then the -%% handle_info(timeout, State) will be called as normal. In this case, -%% returning 'hibernate' from handle_info(timeout, State) will not -%% hibernate the process immediately, as it would if backoff wasn't -%% being used. Instead it'll wait for the current timeout as described -%% above. -%% -%% 7) The callback module can return from any of the handle_* -%% functions, a {become, Module, State} triple, or a {become, Module, -%% State, Timeout} quadruple. This allows the gen_server to -%% dynamically change the callback module. The State is the new state -%% which will be passed into any of the callback functions in the new -%% module. Note there is no form also encompassing a reply, thus if -%% you wish to reply in handle_call/3 and change the callback module, -%% you need to use gen_server2:reply/2 to issue the reply manually. -%% -%% 8) The callback module can optionally implement -%% format_message_queue/2 which is the equivalent of format_status/2 -%% but where the second argument is specifically the priority_queue -%% which contains the prioritised message_queue. - -%% All modifications are (C) 2009-2011 VMware, Inc. - -%% ``The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved via the world wide web at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. -%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings -%% AB. All Rights Reserved.'' -%% -%% $Id$ -%% --module(gen_server2). - -%%% --------------------------------------------------- -%%% -%%% The idea behind THIS server is that the user module -%%% provides (different) functions to handle different -%%% kind of inputs. -%%% If the Parent process terminates the Module:terminate/2 -%%% function is called. -%%% -%%% The user module should export: -%%% -%%% init(Args) -%%% ==> {ok, State} -%%% {ok, State, Timeout} -%%% {ok, State, Timeout, Backoff} -%%% ignore -%%% {stop, Reason} -%%% -%%% handle_call(Msg, {From, Tag}, State) -%%% -%%% ==> {reply, Reply, State} -%%% {reply, Reply, State, Timeout} -%%% {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, Reply, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_cast(Msg, State) -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term terminate(State) is called -%%% -%%% handle_info(Info, State) Info is e.g. {'EXIT', P, R}, {nodedown, N}, ... -%%% -%%% ==> {noreply, State} -%%% {noreply, State, Timeout} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% terminate(Reason, State) Let the user module clean up -%%% always called when server terminates -%%% -%%% ==> ok -%%% -%%% handle_pre_hibernate(State) -%%% -%%% ==> {hibernate, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% handle_post_hibernate(State) -%%% -%%% ==> {noreply, State} -%%% {stop, Reason, State} -%%% Reason = normal | shutdown | Term, terminate(State) is called -%%% -%%% The work flow (of the server) can be described as follows: -%%% -%%% User module Generic -%%% ----------- ------- -%%% start -----> start -%%% init <----- . -%%% -%%% loop -%%% handle_call <----- . -%%% -----> reply -%%% -%%% handle_cast <----- . -%%% -%%% handle_info <----- . -%%% -%%% terminate <----- . -%%% -%%% -----> reply -%%% -%%% -%%% --------------------------------------------------- - -%% API --export([start/3, start/4, - start_link/3, start_link/4, - call/2, call/3, - cast/2, reply/2, - abcast/2, abcast/3, - multi_call/2, multi_call/3, multi_call/4, - enter_loop/3, enter_loop/4, enter_loop/5, enter_loop/6, wake_hib/1]). - --export([behaviour_info/1]). - -%% System exports --export([system_continue/3, - system_terminate/4, - system_code_change/4, - format_status/2]). - -%% Internal exports --export([init_it/6]). - --import(error_logger, [format/2]). - -%% State record --record(gs2_state, {parent, name, state, mod, time, - timeout_state, queue, debug, prioritise_call, - prioritise_cast, prioritise_info}). - -%%%========================================================================= -%%% Specs. These exist only to shut up dialyzer's warnings -%%%========================================================================= - --ifdef(use_specs). - --type(gs2_state() :: #gs2_state{}). - --spec(handle_common_termination/3 :: - (any(), atom(), gs2_state()) -> no_return()). --spec(hibernate/1 :: (gs2_state()) -> no_return()). --spec(pre_hibernate/1 :: (gs2_state()) -> no_return()). --spec(system_terminate/4 :: (_, _, _, gs2_state()) -> no_return()). - --endif. - -%%%========================================================================= -%%% API -%%%========================================================================= - -behaviour_info(callbacks) -> - [{init,1},{handle_call,3},{handle_cast,2},{handle_info,2}, - {terminate,2},{code_change,3}]; -behaviour_info(_Other) -> - undefined. - -%%% ----------------------------------------------------------------- -%%% Starts a generic server. -%%% start(Mod, Args, Options) -%%% start(Name, Mod, Args, Options) -%%% start_link(Mod, Args, Options) -%%% start_link(Name, Mod, Args, Options) where: -%%% Name ::= {local, atom()} | {global, atom()} -%%% Mod ::= atom(), callback module implementing the 'real' server -%%% Args ::= term(), init arguments (to Mod:init/1) -%%% Options ::= [{timeout, Timeout} | {debug, [Flag]}] -%%% Flag ::= trace | log | {logfile, File} | statistics | debug -%%% (debug == log && statistics) -%%% Returns: {ok, Pid} | -%%% {error, {already_started, Pid}} | -%%% {error, Reason} -%%% ----------------------------------------------------------------- -start(Mod, Args, Options) -> - gen:start(?MODULE, nolink, Mod, Args, Options). - -start(Name, Mod, Args, Options) -> - gen:start(?MODULE, nolink, Name, Mod, Args, Options). - -start_link(Mod, Args, Options) -> - gen:start(?MODULE, link, Mod, Args, Options). - -start_link(Name, Mod, Args, Options) -> - gen:start(?MODULE, link, Name, Mod, Args, Options). - - -%% ----------------------------------------------------------------- -%% Make a call to a generic server. -%% If the server is located at another node, that node will -%% be monitored. -%% If the client is trapping exits and is linked server termination -%% is handled here (? Shall we do that here (or rely on timeouts) ?). -%% ----------------------------------------------------------------- -call(Name, Request) -> - case catch gen:call(Name, '$gen_call', Request) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request]}}) - end. - -call(Name, Request, Timeout) -> - case catch gen:call(Name, '$gen_call', Request, Timeout) of - {ok,Res} -> - Res; - {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request, Timeout]}}) - end. - -%% ----------------------------------------------------------------- -%% Make a cast to a generic server. -%% ----------------------------------------------------------------- -cast({global,Name}, Request) -> - catch global:send(Name, cast_msg(Request)), - ok; -cast({Name,Node}=Dest, Request) when is_atom(Name), is_atom(Node) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_atom(Dest) -> - do_cast(Dest, Request); -cast(Dest, Request) when is_pid(Dest) -> - do_cast(Dest, Request). - -do_cast(Dest, Request) -> - do_send(Dest, cast_msg(Request)), - ok. - -cast_msg(Request) -> {'$gen_cast',Request}. - -%% ----------------------------------------------------------------- -%% Send a reply to the client. -%% ----------------------------------------------------------------- -reply({To, Tag}, Reply) -> - catch To ! {Tag, Reply}. - -%% ----------------------------------------------------------------- -%% Asyncronous broadcast, returns nothing, it's just send'n pray -%% ----------------------------------------------------------------- -abcast(Name, Request) when is_atom(Name) -> - do_abcast([node() | nodes()], Name, cast_msg(Request)). - -abcast(Nodes, Name, Request) when is_list(Nodes), is_atom(Name) -> - do_abcast(Nodes, Name, cast_msg(Request)). - -do_abcast([Node|Nodes], Name, Msg) when is_atom(Node) -> - do_send({Name,Node},Msg), - do_abcast(Nodes, Name, Msg); -do_abcast([], _,_) -> abcast. - -%%% ----------------------------------------------------------------- -%%% Make a call to servers at several nodes. -%%% Returns: {[Replies],[BadNodes]} -%%% A Timeout can be given -%%% -%%% A middleman process is used in case late answers arrives after -%%% the timeout. If they would be allowed to glog the callers message -%%% queue, it would probably become confused. Late answers will -%%% now arrive to the terminated middleman and so be discarded. -%%% ----------------------------------------------------------------- -multi_call(Name, Req) - when is_atom(Name) -> - do_multi_call([node() | nodes()], Name, Req, infinity). - -multi_call(Nodes, Name, Req) - when is_list(Nodes), is_atom(Name) -> - do_multi_call(Nodes, Name, Req, infinity). - -multi_call(Nodes, Name, Req, infinity) -> - do_multi_call(Nodes, Name, Req, infinity); -multi_call(Nodes, Name, Req, Timeout) - when is_list(Nodes), is_atom(Name), is_integer(Timeout), Timeout >= 0 -> - do_multi_call(Nodes, Name, Req, Timeout). - - -%%----------------------------------------------------------------- -%% enter_loop(Mod, Options, State, , , ) ->_ -%% -%% Description: Makes an existing process into a gen_server. -%% The calling process will enter the gen_server receive -%% loop and become a gen_server process. -%% The process *must* have been started using one of the -%% start functions in proc_lib, see proc_lib(3). -%% The user is responsible for any initialization of the -%% process, including registering a name for it. -%%----------------------------------------------------------------- -enter_loop(Mod, Options, State) -> - enter_loop(Mod, Options, State, self(), infinity, undefined). - -enter_loop(Mod, Options, State, Backoff = {backoff, _, _ , _}) -> - enter_loop(Mod, Options, State, self(), infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName = {_, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, undefined); - -enter_loop(Mod, Options, State, Timeout) -> - enter_loop(Mod, Options, State, self(), Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Backoff = {backoff, _, _, _}) -> - enter_loop(Mod, Options, State, ServerName, infinity, Backoff); - -enter_loop(Mod, Options, State, ServerName, Timeout) -> - enter_loop(Mod, Options, State, ServerName, Timeout, undefined). - -enter_loop(Mod, Options, State, ServerName, Timeout, Backoff) -> - Name = get_proc_name(ServerName), - Parent = get_parent(), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - Backoff1 = extend_backoff(Backoff), - loop(find_prioritisers( - #gs2_state { parent = Parent, name = Name, state = State, - mod = Mod, time = Timeout, timeout_state = Backoff1, - queue = Queue, debug = Debug })). - -%%%======================================================================== -%%% Gen-callback functions -%%%======================================================================== - -%%% --------------------------------------------------- -%%% Initiate the new process. -%%% Register the name using the Rfunc function -%%% Calls the Mod:init/Args function. -%%% Finally an acknowledge is sent to Parent and the main -%%% loop is entered. -%%% --------------------------------------------------- -init_it(Starter, self, Name, Mod, Args, Options) -> - init_it(Starter, self(), Name, Mod, Args, Options); -init_it(Starter, Parent, Name0, Mod, Args, Options) -> - Name = name(Name0), - Debug = debug_options(Name, Options), - Queue = priority_queue:new(), - GS2State = find_prioritisers( - #gs2_state { parent = Parent, - name = Name, - mod = Mod, - queue = Queue, - debug = Debug }), - case catch Mod:init(Args) of - {ok, State} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = infinity, - timeout_state = undefined }); - {ok, State, Timeout} -> - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = undefined }); - {ok, State, Timeout, Backoff = {backoff, _, _, _}} -> - Backoff1 = extend_backoff(Backoff), - proc_lib:init_ack(Starter, {ok, self()}), - loop(GS2State #gs2_state { state = State, - time = Timeout, - timeout_state = Backoff1 }); - {stop, Reason} -> - %% For consistency, we must make sure that the - %% registered name (if any) is unregistered before - %% the parent process is notified about the failure. - %% (Otherwise, the parent process could get - %% an 'already_started' error if it immediately - %% tried starting the process again.) - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - ignore -> - unregister_name(Name0), - proc_lib:init_ack(Starter, ignore), - exit(normal); - {'EXIT', Reason} -> - unregister_name(Name0), - proc_lib:init_ack(Starter, {error, Reason}), - exit(Reason); - Else -> - Error = {bad_return_value, Else}, - proc_lib:init_ack(Starter, {error, Error}), - exit(Error) - end. - -name({local,Name}) -> Name; -name({global,Name}) -> Name; -%% name(Pid) when is_pid(Pid) -> Pid; -%% when R12 goes away, drop the line beneath and uncomment the line above -name(Name) -> Name. - -unregister_name({local,Name}) -> - _ = (catch unregister(Name)); -unregister_name({global,Name}) -> - _ = global:unregister_name(Name); -unregister_name(Pid) when is_pid(Pid) -> - Pid; -%% Under R12 let's just ignore it, as we have a single term as Name. -%% On R13 it will never get here, as we get tuple with 'local/global' atom. -unregister_name(_Name) -> ok. - -extend_backoff(undefined) -> - undefined; -extend_backoff({backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod}) -> - {backoff, InitialTimeout, MinimumTimeout, DesiredHibPeriod, now()}. - -%%%======================================================================== -%%% Internal functions -%%%======================================================================== -%%% --------------------------------------------------- -%%% The MAIN loop. -%%% --------------------------------------------------- -loop(GS2State = #gs2_state { time = hibernate, - timeout_state = undefined }) -> - pre_hibernate(GS2State); -loop(GS2State) -> - process_next_msg(drain(GS2State)). - -drain(GS2State) -> - receive - Input -> drain(in(Input, GS2State)) - after 0 -> GS2State - end. - -process_next_msg(GS2State = #gs2_state { time = Time, - timeout_state = TimeoutState, - queue = Queue }) -> - case priority_queue:out(Queue) of - {{value, Msg}, Queue1} -> - process_msg(Msg, GS2State #gs2_state { queue = Queue1 }); - {empty, Queue1} -> - {Time1, HibOnTimeout} - = case {Time, TimeoutState} of - {hibernate, {backoff, Current, _Min, _Desired, _RSt}} -> - {Current, true}; - {hibernate, _} -> - %% wake_hib/7 will set Time to hibernate. If - %% we were woken and didn't receive a msg - %% then we will get here and need a sensible - %% value for Time1, otherwise we crash. - %% R13B1 always waits infinitely when waking - %% from hibernation, so that's what we do - %% here too. - {infinity, false}; - _ -> {Time, false} - end, - receive - Input -> - %% Time could be 'hibernate' here, so *don't* call loop - process_next_msg( - drain(in(Input, GS2State #gs2_state { queue = Queue1 }))) - after Time1 -> - case HibOnTimeout of - true -> - pre_hibernate( - GS2State #gs2_state { queue = Queue1 }); - false -> - process_msg(timeout, - GS2State #gs2_state { queue = Queue1 }) - end - end - end. - -wake_hib(GS2State = #gs2_state { timeout_state = TS }) -> - TimeoutState1 = case TS of - undefined -> - undefined; - {SleptAt, TimeoutState} -> - adjust_timeout_state(SleptAt, now(), TimeoutState) - end, - post_hibernate( - drain(GS2State #gs2_state { timeout_state = TimeoutState1 })). - -hibernate(GS2State = #gs2_state { timeout_state = TimeoutState }) -> - TS = case TimeoutState of - undefined -> undefined; - {backoff, _, _, _, _} -> {now(), TimeoutState} - end, - proc_lib:hibernate(?MODULE, wake_hib, - [GS2State #gs2_state { timeout_state = TS }]). - -pre_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_pre_hibernate, 1) of - true -> - case catch Mod:handle_pre_hibernate(State) of - {hibernate, NState} -> - hibernate(GS2State #gs2_state { state = NState } ); - Reply -> - handle_common_termination(Reply, pre_hibernate, GS2State) - end; - false -> - hibernate(GS2State) - end. - -post_hibernate(GS2State = #gs2_state { state = State, - mod = Mod }) -> - case erlang:function_exported(Mod, handle_post_hibernate, 1) of - true -> - case catch Mod:handle_post_hibernate(State) of - {noreply, NState} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = infinity }); - {noreply, NState, Time} -> - process_next_msg(GS2State #gs2_state { state = NState, - time = Time }); - Reply -> - handle_common_termination(Reply, post_hibernate, GS2State) - end; - false -> - %% use hibernate here, not infinity. This matches - %% R13B. The key is that we should be able to get through - %% to process_msg calling sys:handle_system_msg with Time - %% still set to hibernate, iff that msg is the very msg - %% that woke us up (or the first msg we receive after - %% waking up). - process_next_msg(GS2State #gs2_state { time = hibernate }) - end. - -adjust_timeout_state(SleptAt, AwokeAt, {backoff, CurrentTO, MinimumTO, - DesiredHibPeriod, RandomState}) -> - NapLengthMicros = timer:now_diff(AwokeAt, SleptAt), - CurrentMicros = CurrentTO * 1000, - MinimumMicros = MinimumTO * 1000, - DesiredHibMicros = DesiredHibPeriod * 1000, - GapBetweenMessagesMicros = NapLengthMicros + CurrentMicros, - Base = - %% If enough time has passed between the last two messages then we - %% should consider sleeping sooner. Otherwise stay awake longer. - case GapBetweenMessagesMicros > (MinimumMicros + DesiredHibMicros) of - true -> lists:max([MinimumTO, CurrentTO div 2]); - false -> CurrentTO - end, - {Extra, RandomState1} = random:uniform_s(Base, RandomState), - CurrentTO1 = Base + Extra, - {backoff, CurrentTO1, MinimumTO, DesiredHibPeriod, RandomState1}. - -in({'$gen_cast', Msg} = Input, - GS2State = #gs2_state { prioritise_cast = PC }) -> - in(Input, PC(Msg, GS2State), GS2State); -in({'$gen_call', From, Msg} = Input, - GS2State = #gs2_state { prioritise_call = PC }) -> - in(Input, PC(Msg, From, GS2State), GS2State); -in({'EXIT', Parent, _R} = Input, GS2State = #gs2_state { parent = Parent }) -> - in(Input, infinity, GS2State); -in({system, _From, _Req} = Input, GS2State) -> - in(Input, infinity, GS2State); -in(Input, GS2State = #gs2_state { prioritise_info = PI }) -> - in(Input, PI(Input, GS2State), GS2State). - -in(Input, Priority, GS2State = #gs2_state { queue = Queue }) -> - GS2State # gs2_state { queue = priority_queue:in(Input, Priority, Queue) }. - -process_msg({system, From, Req}, - GS2State = #gs2_state { parent = Parent, debug = Debug }) -> - sys:handle_system_msg(Req, From, Parent, ?MODULE, Debug, GS2State); -process_msg({'EXIT', Parent, Reason} = Msg, - GS2State = #gs2_state { parent = Parent }) -> - %% gen_server puts Hib on the end as the 7th arg, but that version - %% of the fun seems not to be documented so leaving out for now. - terminate(Reason, Msg, GS2State); -process_msg(Msg, GS2State = #gs2_state { debug = [] }) -> - handle_msg(Msg, GS2State); -process_msg(Msg, GS2State = #gs2_state { name = Name, debug = Debug }) -> - Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, {in, Msg}), - handle_msg(Msg, GS2State #gs2_state { debug = Debug1 }). - -%%% --------------------------------------------------- -%%% Send/recive functions -%%% --------------------------------------------------- -do_send(Dest, Msg) -> - catch erlang:send(Dest, Msg). - -do_multi_call(Nodes, Name, Req, infinity) -> - Tag = make_ref(), - Monitors = send_nodes(Nodes, Name, Tag, Req), - rec_nodes(Tag, Monitors, Name, undefined); -do_multi_call(Nodes, Name, Req, Timeout) -> - Tag = make_ref(), - Caller = self(), - Receiver = - spawn( - fun () -> - %% Middleman process. Should be unsensitive to regular - %% exit signals. The sychronization is needed in case - %% the receiver would exit before the caller started - %% the monitor. - process_flag(trap_exit, true), - Mref = erlang:monitor(process, Caller), - receive - {Caller,Tag} -> - Monitors = send_nodes(Nodes, Name, Tag, Req), - TimerId = erlang:start_timer(Timeout, self(), ok), - Result = rec_nodes(Tag, Monitors, Name, TimerId), - exit({self(),Tag,Result}); - {'DOWN',Mref,_,_,_} -> - %% Caller died before sending us the go-ahead. - %% Give up silently. - exit(normal) - end - end), - Mref = erlang:monitor(process, Receiver), - Receiver ! {self(),Tag}, - receive - {'DOWN',Mref,_,_,{Receiver,Tag,Result}} -> - Result; - {'DOWN',Mref,_,_,Reason} -> - %% The middleman code failed. Or someone did - %% exit(_, kill) on the middleman process => Reason==killed - exit(Reason) - end. - -send_nodes(Nodes, Name, Tag, Req) -> - send_nodes(Nodes, Name, Tag, Req, []). - -send_nodes([Node|Tail], Name, Tag, Req, Monitors) - when is_atom(Node) -> - Monitor = start_monitor(Node, Name), - %% Handle non-existing names in rec_nodes. - catch {Name, Node} ! {'$gen_call', {self(), {Tag, Node}}, Req}, - send_nodes(Tail, Name, Tag, Req, [Monitor | Monitors]); -send_nodes([_Node|Tail], Name, Tag, Req, Monitors) -> - %% Skip non-atom Node - send_nodes(Tail, Name, Tag, Req, Monitors); -send_nodes([], _Name, _Tag, _Req, Monitors) -> - Monitors. - -%% Against old nodes: -%% If no reply has been delivered within 2 secs. (per node) check that -%% the server really exists and wait for ever for the answer. -%% -%% Against contemporary nodes: -%% Wait for reply, server 'DOWN', or timeout from TimerId. - -rec_nodes(Tag, Nodes, Name, TimerId) -> - rec_nodes(Tag, Nodes, Name, [], [], 2000, TimerId). - -rec_nodes(Tag, [{N,R}|Tail], Name, Badnodes, Replies, Time, TimerId ) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, Time, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], Time, TimerId); - {timeout, TimerId, _} -> - unmonitor(R), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes(Tag, [N|Tail], Name, Badnodes, Replies, Time, TimerId) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], Replies, 2000, TimerId); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, Badnodes, - [{N,Reply}|Replies], 2000, TimerId); - {timeout, TimerId, _} -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - %% Collect all replies that already have arrived - rec_nodes_rest(Tag, Tail, Name, [N | Badnodes], Replies) - after Time -> - case rpc:call(N, erlang, whereis, [Name]) of - Pid when is_pid(Pid) -> % It exists try again. - rec_nodes(Tag, [N|Tail], Name, Badnodes, - Replies, infinity, TimerId); - _ -> % badnode - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes(Tag, Tail, Name, [N|Badnodes], - Replies, 2000, TimerId) - end - end; -rec_nodes(_, [], _, Badnodes, Replies, _, TimerId) -> - case catch erlang:cancel_timer(TimerId) of - false -> % It has already sent it's message - receive - {timeout, TimerId, _} -> ok - after 0 -> - ok - end; - _ -> % Timer was cancelled, or TimerId was 'undefined' - ok - end, - {Replies, Badnodes}. - -%% Collect all replies that already have arrived -rec_nodes_rest(Tag, [{N,R}|Tail], Name, Badnodes, Replies) -> - receive - {'DOWN', R, _, _, _} -> - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - unmonitor(R), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(Tag, [N|Tail], Name, Badnodes, Replies) -> - %% R6 node - receive - {nodedown, N} -> - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies); - {{Tag, N}, Reply} -> %% Tag is bound !!! - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, Badnodes, [{N,Reply}|Replies]) - after 0 -> - receive {nodedown, N} -> ok after 0 -> ok end, - monitor_node(N, false), - rec_nodes_rest(Tag, Tail, Name, [N|Badnodes], Replies) - end; -rec_nodes_rest(_Tag, [], _Name, Badnodes, Replies) -> - {Replies, Badnodes}. - - -%%% --------------------------------------------------- -%%% Monitor functions -%%% --------------------------------------------------- - -start_monitor(Node, Name) when is_atom(Node), is_atom(Name) -> - if node() =:= nonode@nohost, Node =/= nonode@nohost -> - Ref = make_ref(), - self() ! {'DOWN', Ref, process, {Name, Node}, noconnection}, - {Node, Ref}; - true -> - case catch erlang:monitor(process, {Name, Node}) of - {'EXIT', _} -> - %% Remote node is R6 - monitor_node(Node, true), - Node; - Ref when is_reference(Ref) -> - {Node, Ref} - end - end. - -%% Cancels a monitor started with Ref=erlang:monitor(_, _). -unmonitor(Ref) when is_reference(Ref) -> - erlang:demonitor(Ref), - receive - {'DOWN', Ref, _, _, _} -> - true - after 0 -> - true - end. - -%%% --------------------------------------------------- -%%% Message handling functions -%%% --------------------------------------------------- - -dispatch({'$gen_cast', Msg}, Mod, State) -> - Mod:handle_cast(Msg, State); -dispatch(Info, Mod, State) -> - Mod:handle_info(Info, State). - -common_reply(_Name, From, Reply, _NState, [] = _Debug) -> - reply(From, Reply), - []; -common_reply(Name, From, Reply, NState, Debug) -> - reply(Name, From, Reply, NState, Debug). - -common_debug([] = _Debug, _Func, _Info, _Event) -> - []; -common_debug(Debug, Func, Info, Event) -> - sys:handle_debug(Debug, Func, Info, Event). - -handle_msg({'$gen_call', From, Msg}, GS2State = #gs2_state { mod = Mod, - state = State, - name = Name, - debug = Debug }) -> - case catch Mod:handle_call(Msg, From, State) of - {reply, Reply, NState} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {reply, Reply, NState, Time1} -> - Debug1 = common_reply(Name, From, Reply, NState, Debug), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1}); - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = infinity, - debug = Debug1}); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state {state = NState, - time = Time1, - debug = Debug1}); - {stop, Reason, Reply, NState} -> - {'EXIT', R} = - (catch terminate(Reason, Msg, - GS2State #gs2_state { state = NState })), - reply(Name, From, Reply, NState, Debug), - exit(R); - Other -> - handle_common_reply(Other, Msg, GS2State) - end; -handle_msg(Msg, GS2State = #gs2_state { mod = Mod, state = State }) -> - Reply = (catch dispatch(Msg, Mod, State)), - handle_common_reply(Reply, Msg, GS2State). - -handle_common_reply(Reply, Msg, GS2State = #gs2_state { name = Name, - debug = Debug}) -> - case Reply of - {noreply, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = infinity, - debug = Debug1 }); - {noreply, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {noreply, NState}), - loop(GS2State #gs2_state { state = NState, - time = Time1, - debug = Debug1 }); - {become, Mod, NState} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {become, Mod, NState}), - loop(find_prioritisers( - GS2State #gs2_state { mod = Mod, - state = NState, - time = infinity, - debug = Debug1 })); - {become, Mod, NState, Time1} -> - Debug1 = common_debug(Debug, fun print_event/3, Name, - {become, Mod, NState}), - loop(find_prioritisers( - GS2State #gs2_state { mod = Mod, - state = NState, - time = Time1, - debug = Debug1 })); - _ -> - handle_common_termination(Reply, Msg, GS2State) - end. - -handle_common_termination(Reply, Msg, GS2State) -> - case Reply of - {stop, Reason, NState} -> - terminate(Reason, Msg, GS2State #gs2_state { state = NState }); - {'EXIT', What} -> - terminate(What, Msg, GS2State); - _ -> - terminate({bad_return_value, Reply}, Msg, GS2State) - end. - -reply(Name, {To, Tag}, Reply, State, Debug) -> - reply({To, Tag}, Reply), - sys:handle_debug( - Debug, fun print_event/3, Name, {out, Reply, To, State}). - - -%%----------------------------------------------------------------- -%% Callback functions for system messages handling. -%%----------------------------------------------------------------- -system_continue(Parent, Debug, GS2State) -> - loop(GS2State #gs2_state { parent = Parent, debug = Debug }). - -system_terminate(Reason, _Parent, Debug, GS2State) -> - terminate(Reason, [], GS2State #gs2_state { debug = Debug }). - -system_code_change(GS2State = #gs2_state { mod = Mod, - state = State }, - _Module, OldVsn, Extra) -> - case catch Mod:code_change(OldVsn, State, Extra) of - {ok, NewState} -> - NewGS2State = find_prioritisers( - GS2State #gs2_state { state = NewState }), - {ok, [NewGS2State]}; - Else -> - Else - end. - -%%----------------------------------------------------------------- -%% Format debug messages. Print them as the call-back module sees -%% them, not as the real erlang messages. Use trace for that. -%%----------------------------------------------------------------- -print_event(Dev, {in, Msg}, Name) -> - case Msg of - {'$gen_call', {From, _Tag}, Call} -> - io:format(Dev, "*DBG* ~p got call ~p from ~w~n", - [Name, Call, From]); - {'$gen_cast', Cast} -> - io:format(Dev, "*DBG* ~p got cast ~p~n", - [Name, Cast]); - _ -> - io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg]) - end; -print_event(Dev, {out, Msg, To, State}, Name) -> - io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n", - [Name, Msg, To, State]); -print_event(Dev, {noreply, State}, Name) -> - io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]); -print_event(Dev, Event, Name) -> - io:format(Dev, "*DBG* ~p dbg ~p~n", [Name, Event]). - - -%%% --------------------------------------------------- -%%% Terminate the server. -%%% --------------------------------------------------- - -terminate(Reason, Msg, #gs2_state { name = Name, - mod = Mod, - state = State, - debug = Debug }) -> - case catch Mod:terminate(Reason, State) of - {'EXIT', R} -> - error_info(R, Reason, Name, Msg, State, Debug), - exit(R); - _ -> - case Reason of - normal -> - exit(normal); - shutdown -> - exit(shutdown); - {shutdown,_}=Shutdown -> - exit(Shutdown); - _ -> - error_info(Reason, undefined, Name, Msg, State, Debug), - exit(Reason) - end - end. - -error_info(_Reason, _RootCause, application_controller, _Msg, _State, _Debug) -> - %% OTP-5811 Don't send an error report if it's the system process - %% application_controller which is terminating - let init take care - %% of it instead - ok; -error_info(Reason, RootCause, Name, Msg, State, Debug) -> - Reason1 = error_reason(Reason), - Fmt = - "** Generic server ~p terminating~n" - "** Last message in was ~p~n" - "** When Server state == ~p~n" - "** Reason for termination == ~n** ~p~n", - case RootCause of - undefined -> format(Fmt, [Name, Msg, State, Reason1]); - _ -> format(Fmt ++ "** In 'terminate' callback " - "with reason ==~n** ~p~n", - [Name, Msg, State, Reason1, - error_reason(RootCause)]) - end, - sys:print_log(Debug), - ok. - -error_reason({undef,[{M,F,A}|MFAs]} = Reason) -> - case code:is_loaded(M) of - false -> {'module could not be loaded',[{M,F,A}|MFAs]}; - _ -> case erlang:function_exported(M, F, length(A)) of - true -> Reason; - false -> {'function not exported',[{M,F,A}|MFAs]} - end - end; -error_reason(Reason) -> - Reason. - -%%% --------------------------------------------------- -%%% Misc. functions. -%%% --------------------------------------------------- - -opt(Op, [{Op, Value}|_]) -> - {ok, Value}; -opt(Op, [_|Options]) -> - opt(Op, Options); -opt(_, []) -> - false. - -debug_options(Name, Opts) -> - case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) - end. - -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). - -dbg_opts(Name, Opts) -> - case catch sys:debug_options(Opts) of - {'EXIT',_} -> - format("~p: ignoring erroneous debug options - ~p~n", - [Name, Opts]), - []; - Dbg -> - Dbg - end. - -get_proc_name(Pid) when is_pid(Pid) -> - Pid; -get_proc_name({local, Name}) -> - case process_info(self(), registered_name) of - {registered_name, Name} -> - Name; - {registered_name, _Name} -> - exit(process_not_registered); - [] -> - exit(process_not_registered) - end; -get_proc_name({global, Name}) -> - case global:safe_whereis_name(Name) of - undefined -> - exit(process_not_registered_globally); - Pid when Pid =:= self() -> - Name; - _Pid -> - exit(process_not_registered_globally) - end. - -get_parent() -> - case get('$ancestors') of - [Parent | _] when is_pid(Parent)-> - Parent; - [Parent | _] when is_atom(Parent)-> - name_to_pid(Parent); - _ -> - exit(process_was_not_started_by_proc_lib) - end. - -name_to_pid(Name) -> - case whereis(Name) of - undefined -> - case global:safe_whereis_name(Name) of - undefined -> - exit(could_not_find_registerd_name); - Pid -> - Pid - end; - Pid -> - Pid - end. - -find_prioritisers(GS2State = #gs2_state { mod = Mod }) -> - PrioriCall = function_exported_or_default( - Mod, 'prioritise_call', 3, - fun (_Msg, _From, _State) -> 0 end), - PrioriCast = function_exported_or_default(Mod, 'prioritise_cast', 2, - fun (_Msg, _State) -> 0 end), - PrioriInfo = function_exported_or_default(Mod, 'prioritise_info', 2, - fun (_Msg, _State) -> 0 end), - GS2State #gs2_state { prioritise_call = PrioriCall, - prioritise_cast = PrioriCast, - prioritise_info = PrioriInfo }. - -function_exported_or_default(Mod, Fun, Arity, Default) -> - case erlang:function_exported(Mod, Fun, Arity) of - true -> case Arity of - 2 -> fun (Msg, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end; - 3 -> fun (Msg, From, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, From, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) - end - end - end; - false -> Default - end. - -%%----------------------------------------------------------------- -%% Status information -%%----------------------------------------------------------------- -format_status(Opt, StatusData) -> - [PDict, SysState, Parent, Debug, - #gs2_state{name = Name, state = State, mod = Mod, queue = Queue}] = - StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), - Log = sys:get_debug(log, Debug, []), - Specfic = callback(Mod, format_status, [Opt, [PDict, State]], - fun () -> [{data, [{"State", State}]}] end), - Messages = callback(Mod, format_message_queue, [Opt, Queue], - fun () -> priority_queue:to_list(Queue) end), - [{header, Header}, - {data, [{"Status", SysState}, - {"Parent", Parent}, - {"Logged events", Log}, - {"Queued messages", Messages}]} | - Specfic]. - -callback(Mod, FunName, Args, DefaultThunk) -> - case erlang:function_exported(Mod, FunName, length(Args)) of - true -> case catch apply(Mod, FunName, Args) of - {'EXIT', _} -> DefaultThunk(); - Success -> Success - end; - false -> DefaultThunk() - end. diff --git a/src/gm.erl b/src/gm.erl deleted file mode 100644 index 8b7dc70c..00000000 --- a/src/gm.erl +++ /dev/null @@ -1,1379 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm). - -%% Guaranteed Multicast -%% ==================== -%% -%% This module provides the ability to create named groups of -%% processes to which members can be dynamically added and removed, -%% and for messages to be broadcast within the group that are -%% guaranteed to reach all members of the group during the lifetime of -%% the message. The lifetime of a message is defined as being, at a -%% minimum, the time from which the message is first sent to any -%% member of the group, up until the time at which it is known by the -%% member who published the message that the message has reached all -%% group members. -%% -%% The guarantee given is that provided a message, once sent, makes it -%% to members who do not all leave the group, the message will -%% continue to propagate to all group members. -%% -%% Another way of stating the guarantee is that if member P publishes -%% messages m and m', then for all members P', if P' is a member of -%% the group prior to the publication of m, and P' receives m', then -%% P' will receive m. -%% -%% Note that only local-ordering is enforced: i.e. if member P sends -%% message m and then message m', then for-all members P', if P' -%% receives m and m', then they will receive m' after m. Causality -%% ordering is _not_ enforced. I.e. if member P receives message m -%% and as a result publishes message m', there is no guarantee that -%% other members P' will receive m before m'. -%% -%% -%% API Use -%% ------- -%% -%% Mnesia must be started. Use the idempotent create_tables/0 function -%% to create the tables required. -%% -%% start_link/3 -%% Provide the group name, the callback module name, and any arguments -%% you wish to be passed into the callback module's functions. The -%% joined/2 function will be called when we have joined the group, -%% with the arguments passed to start_link and a list of the current -%% members of the group. See the comments in behaviour_info/1 below -%% for further details of the callback functions. -%% -%% leave/1 -%% Provide the Pid. Removes the Pid from the group. The callback -%% terminate/2 function will be called. -%% -%% broadcast/2 -%% Provide the Pid and a Message. The message will be sent to all -%% members of the group as per the guarantees given above. This is a -%% cast and the function call will return immediately. There is no -%% guarantee that the message will reach any member of the group. -%% -%% confirmed_broadcast/2 -%% Provide the Pid and a Message. As per broadcast/2 except that this -%% is a call, not a cast, and only returns 'ok' once the Message has -%% reached every member of the group. Do not call -%% confirmed_broadcast/2 directly from the callback module otherwise -%% you will deadlock the entire group. -%% -%% group_members/1 -%% Provide the Pid. Returns a list of the current group members. -%% -%% -%% Implementation Overview -%% ----------------------- -%% -%% One possible means of implementation would be a fan-out from the -%% sender to every member of the group. This would require that the -%% group is fully connected, and, in the event that the original -%% sender of the message disappears from the group before the message -%% has made it to every member of the group, raises questions as to -%% who is responsible for sending on the message to new group members. -%% In particular, the issue is with [ Pid ! Msg || Pid <- Members ] - -%% if the sender dies part way through, who is responsible for -%% ensuring that the remaining Members receive the Msg? In the event -%% that within the group, messages sent are broadcast from a subset of -%% the members, the fan-out arrangement has the potential to -%% substantially impact the CPU and network workload of such members, -%% as such members would have to accommodate the cost of sending each -%% message to every group member. -%% -%% Instead, if the members of the group are arranged in a chain, then -%% it becomes easier to reason about who within the group has received -%% each message and who has not. It eases issues of responsibility: in -%% the event of a group member disappearing, the nearest upstream -%% member of the chain is responsible for ensuring that messages -%% continue to propagate down the chain. It also results in equal -%% distribution of sending and receiving workload, even if all -%% messages are being sent from just a single group member. This -%% configuration has the further advantage that it is not necessary -%% for every group member to know of every other group member, and -%% even that a group member does not have to be accessible from all -%% other group members. -%% -%% Performance is kept high by permitting pipelining and all -%% communication between joined group members is asynchronous. In the -%% chain A -> B -> C -> D, if A sends a message to the group, it will -%% not directly contact C or D. However, it must know that D receives -%% the message (in addition to B and C) before it can consider the -%% message fully sent. A simplistic implementation would require that -%% D replies to C, C replies to B and B then replies to A. This would -%% result in a propagation delay of twice the length of the chain. It -%% would also require, in the event of the failure of C, that D knows -%% to directly contact B and issue the necessary replies. Instead, the -%% chain forms a ring: D sends the message on to A: D does not -%% distinguish A as the sender, merely as the next member (downstream) -%% within the chain (which has now become a ring). When A receives -%% from D messages that A sent, it knows that all members have -%% received the message. However, the message is not dead yet: if C -%% died as B was sending to C, then B would need to detect the death -%% of C and forward the message on to D instead: thus every node has -%% to remember every message published until it is told that it can -%% forget about the message. This is essential not just for dealing -%% with failure of members, but also for the addition of new members. -%% -%% Thus once A receives the message back again, it then sends to B an -%% acknowledgement for the message, indicating that B can now forget -%% about the message. B does so, and forwards the ack to C. C forgets -%% the message, and forwards the ack to D, which forgets the message -%% and finally forwards the ack back to A. At this point, A takes no -%% further action: the message and its acknowledgement have made it to -%% every member of the group. The message is now dead, and any new -%% member joining the group at this point will not receive the -%% message. -%% -%% We therefore have two roles: -%% -%% 1. The sender, who upon receiving their own messages back, must -%% then send out acknowledgements, and upon receiving their own -%% acknowledgements back perform no further action. -%% -%% 2. The other group members who upon receiving messages and -%% acknowledgements must update their own internal state accordingly -%% (the sending member must also do this in order to be able to -%% accommodate failures), and forwards messages on to their downstream -%% neighbours. -%% -%% -%% Implementation: It gets trickier -%% -------------------------------- -%% -%% Chain A -> B -> C -> D -%% -%% A publishes a message which B receives. A now dies. B and D will -%% detect the death of A, and will link up, thus the chain is now B -> -%% C -> D. B forwards A's message on to C, who forwards it to D, who -%% forwards it to B. Thus B is now responsible for A's messages - both -%% publications and acknowledgements that were in flight at the point -%% at which A died. Even worse is that this is transitive: after B -%% forwards A's message to C, B dies as well. Now C is not only -%% responsible for B's in-flight messages, but is also responsible for -%% A's in-flight messages. -%% -%% Lemma 1: A member can only determine which dead members they have -%% inherited responsibility for if there is a total ordering on the -%% conflicting additions and subtractions of members from the group. -%% -%% Consider the simultaneous death of B and addition of B' that -%% transitions a chain from A -> B -> C to A -> B' -> C. Either B' or -%% C is responsible for in-flight messages from B. It is easy to -%% ensure that at least one of them thinks they have inherited B, but -%% if we do not ensure that exactly one of them inherits B, then we -%% could have B' converting publishes to acks, which then will crash C -%% as C does not believe it has issued acks for those messages. -%% -%% More complex scenarios are easy to concoct: A -> B -> C -> D -> E -%% becoming A -> C' -> E. Who has inherited which of B, C and D? -%% -%% However, for non-conflicting membership changes, only a partial -%% ordering is required. For example, A -> B -> C becoming A -> A' -> -%% B. The addition of A', between A and B can have no conflicts with -%% the death of C: it is clear that A has inherited C's messages. -%% -%% For ease of implementation, we adopt the simple solution, of -%% imposing a total order on all membership changes. -%% -%% On the death of a member, it is ensured the dead member's -%% neighbours become aware of the death, and the upstream neighbour -%% now sends to its new downstream neighbour its state, including the -%% messages pending acknowledgement. The downstream neighbour can then -%% use this to calculate which publishes and acknowledgements it has -%% missed out on, due to the death of its old upstream. Thus the -%% downstream can catch up, and continues the propagation of messages -%% through the group. -%% -%% Lemma 2: When a member is joining, it must synchronously -%% communicate with its upstream member in order to receive its -%% starting state atomically with its addition to the group. -%% -%% New members must start with the same state as their nearest -%% upstream neighbour. This ensures that it is not surprised by -%% acknowledgements they are sent, and that should their downstream -%% neighbour die, they are able to send the correct state to their new -%% downstream neighbour to ensure it can catch up. Thus in the -%% transition A -> B -> C becomes A -> A' -> B -> C becomes A -> A' -> -%% C, A' must start with the state of A, so that it can send C the -%% correct state when B dies, allowing C to detect any missed -%% messages. -%% -%% If A' starts by adding itself to the group membership, A could then -%% die, without A' having received the necessary state from A. This -%% would leave A' responsible for in-flight messages from A, but -%% having the least knowledge of all, of those messages. Thus A' must -%% start by synchronously calling A, which then immediately sends A' -%% back its state. A then adds A' to the group. If A dies at this -%% point then A' will be able to see this (as A' will fail to appear -%% in the group membership), and thus A' will ignore the state it -%% receives from A, and will simply repeat the process, trying to now -%% join downstream from some other member. This ensures that should -%% the upstream die as soon as the new member has been joined, the new -%% member is guaranteed to receive the correct state, allowing it to -%% correctly process messages inherited due to the death of its -%% upstream neighbour. -%% -%% The canonical definition of the group membership is held by a -%% distributed database. Whilst this allows the total ordering of -%% changes to be achieved, it is nevertheless undesirable to have to -%% query this database for the current view, upon receiving each -%% message. Instead, we wish for members to be able to cache a view of -%% the group membership, which then requires a cache invalidation -%% mechanism. Each member maintains its own view of the group -%% membership. Thus when the group's membership changes, members may -%% need to become aware of such changes in order to be able to -%% accurately process messages they receive. Because of the -%% requirement of a total ordering of conflicting membership changes, -%% it is not possible to use the guaranteed broadcast mechanism to -%% communicate these changes: to achieve the necessary ordering, it -%% would be necessary for such messages to be published by exactly one -%% member, which can not be guaranteed given that such a member could -%% die. -%% -%% The total ordering we enforce on membership changes gives rise to a -%% view version number: every change to the membership creates a -%% different view, and the total ordering permits a simple -%% monotonically increasing view version number. -%% -%% Lemma 3: If a message is sent from a member that holds view version -%% N, it can be correctly processed by any member receiving the -%% message with a view version >= N. -%% -%% Initially, let us suppose that each view contains the ordering of -%% every member that was ever part of the group. Dead members are -%% marked as such. Thus we have a ring of members, some of which are -%% dead, and are thus inherited by the nearest alive downstream -%% member. -%% -%% In the chain A -> B -> C, all three members initially have view -%% version 1, which reflects reality. B publishes a message, which is -%% forward by C to A. B now dies, which A notices very quickly. Thus A -%% updates the view, creating version 2. It now forwards B's -%% publication, sending that message to its new downstream neighbour, -%% C. This happens before C is aware of the death of B. C must become -%% aware of the view change before it interprets the message its -%% received, otherwise it will fail to learn of the death of B, and -%% thus will not realise it has inherited B's messages (and will -%% likely crash). -%% -%% Thus very simply, we have that each subsequent view contains more -%% information than the preceding view. -%% -%% However, to avoid the views growing indefinitely, we need to be -%% able to delete members which have died _and_ for which no messages -%% are in-flight. This requires that upon inheriting a dead member, we -%% know the last publication sent by the dead member (this is easy: we -%% inherit a member because we are the nearest downstream member which -%% implies that we know at least as much than everyone else about the -%% publications of the dead member), and we know the earliest message -%% for which the acknowledgement is still in flight. -%% -%% In the chain A -> B -> C, when B dies, A will send to C its state -%% (as C is the new downstream from A), allowing C to calculate which -%% messages it has missed out on (described above). At this point, C -%% also inherits B's messages. If that state from A also includes the -%% last message published by B for which an acknowledgement has been -%% seen, then C knows exactly which further acknowledgements it must -%% receive (also including issuing acknowledgements for publications -%% still in-flight that it receives), after which it is known there -%% are no more messages in flight for B, thus all evidence that B was -%% ever part of the group can be safely removed from the canonical -%% group membership. -%% -%% Thus, for every message that a member sends, it includes with that -%% message its view version. When a member receives a message it will -%% update its view from the canonical copy, should its view be older -%% than the view version included in the message it has received. -%% -%% The state held by each member therefore includes the messages from -%% each publisher pending acknowledgement, the last publication seen -%% from that publisher, and the last acknowledgement from that -%% publisher. In the case of the member's own publications or -%% inherited members, this last acknowledgement seen state indicates -%% the last acknowledgement retired, rather than sent. -%% -%% -%% Proof sketch -%% ------------ -%% -%% We need to prove that with the provided operational semantics, we -%% can never reach a state that is not well formed from a well-formed -%% starting state. -%% -%% Operational semantics (small step): straight-forward message -%% sending, process monitoring, state updates. -%% -%% Well formed state: dead members inherited by exactly one non-dead -%% member; for every entry in anyone's pending-acks, either (the -%% publication of the message is in-flight downstream from the member -%% and upstream from the publisher) or (the acknowledgement of the -%% message is in-flight downstream from the publisher and upstream -%% from the member). -%% -%% Proof by induction on the applicable operational semantics. -%% -%% -%% Related work -%% ------------ -%% -%% The ring configuration and double traversal of messages around the -%% ring is similar (though developed independently) to the LCR -%% protocol by [Levy 2008]. However, LCR differs in several -%% ways. Firstly, by using vector clocks, it enforces a total order of -%% message delivery, which is unnecessary for our purposes. More -%% significantly, it is built on top of a "group communication system" -%% which performs the group management functions, taking -%% responsibility away from the protocol as to how to cope with safely -%% adding and removing members. When membership changes do occur, the -%% protocol stipulates that every member must perform communication -%% with every other member of the group, to ensure all outstanding -%% deliveries complete, before the entire group transitions to the new -%% view. This, in total, requires two sets of all-to-all synchronous -%% communications. -%% -%% This is not only rather inefficient, but also does not explain what -%% happens upon the failure of a member during this process. It does -%% though entirely avoid the need for inheritance of responsibility of -%% dead members that our protocol incorporates. -%% -%% In [Marandi et al 2010], a Paxos-based protocol is described. This -%% work explicitly focuses on the efficiency of communication. LCR -%% (and our protocol too) are more efficient, but at the cost of -%% higher latency. The Ring-Paxos protocol is itself built on top of -%% IP-multicast, which rules it out for many applications where -%% point-to-point communication is all that can be required. They also -%% have an excellent related work section which I really ought to -%% read... -%% -%% -%% [Levy 2008] The Complexity of Reliable Distributed Storage, 2008. -%% [Marandi et al 2010] Ring Paxos: A High-Throughput Atomic Broadcast -%% Protocol - - --behaviour(gen_server2). - --export([create_tables/0, start_link/3, leave/1, broadcast/2, - confirmed_broadcast/2, group_members/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3, prioritise_cast/2, prioritise_info/2]). - --export([behaviour_info/1]). - --export([table_definitions/0, flush/1]). - --define(GROUP_TABLE, gm_group). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). --define(BROADCAST_TIMER, 25). --define(SETS, ordsets). --define(DICT, orddict). - --record(state, - { self, - left, - right, - group_name, - module, - view, - pub_count, - members_state, - callback_args, - confirms, - broadcast_buffer, - broadcast_timer - }). - --record(gm_group, { name, version, members }). - --record(view_member, { id, aliases, left, right }). - --record(member, { pending_ack, last_pub, last_ack }). - --define(TABLE, {?GROUP_TABLE, [{record_name, gm_group}, - {attributes, record_info(fields, gm_group)}]}). --define(TABLE_MATCH, {match, #gm_group { _ = '_' }}). - --define(TAG, '$gm'). - --ifdef(use_specs). - --export_type([group_name/0]). - --type(group_name() :: any()). - --spec(create_tables/0 :: () -> 'ok'). --spec(start_link/3 :: (group_name(), atom(), any()) -> - {'ok', pid()} | {'error', any()}). --spec(leave/1 :: (pid()) -> 'ok'). --spec(broadcast/2 :: (pid(), any()) -> 'ok'). --spec(confirmed_broadcast/2 :: (pid(), any()) -> 'ok'). --spec(group_members/1 :: (pid()) -> [pid()]). - --endif. - -behaviour_info(callbacks) -> - [ - %% The joined, members_changed and handle_msg callbacks can all - %% return any of the following terms: - %% - %% 'ok' - the callback function returns normally - %% - %% {'stop', Reason} - the callback indicates the member should - %% stop with reason Reason and should leave the group. - %% - %% {'become', Module, Args} - the callback indicates that the - %% callback module should be changed to Module and that the - %% callback functions should now be passed the arguments - %% Args. This allows the callback module to be dynamically - %% changed. - - %% Called when we've successfully joined the group. Supplied with - %% Args provided in start_link, plus current group members. - {joined, 2}, - - %% Supplied with Args provided in start_link, the list of new - %% members and the list of members previously known to us that - %% have since died. Note that if a member joins and dies very - %% quickly, it's possible that we will never see that member - %% appear in either births or deaths. However we are guaranteed - %% that (1) we will see a member joining either in the births - %% here, or in the members passed to joined/2 before receiving - %% any messages from it; and (2) we will not see members die that - %% we have not seen born (or supplied in the members to - %% joined/2). - {members_changed, 3}, - - %% Supplied with Args provided in start_link, the sender, and the - %% message. This does get called for messages injected by this - %% member, however, in such cases, there is no special - %% significance of this invocation: it does not indicate that the - %% message has made it to any other members, let alone all other - %% members. - {handle_msg, 3}, - - %% Called on gm member termination as per rules in gen_server, - %% with the Args provided in start_link plus the termination - %% Reason. - {terminate, 2} - ]; -behaviour_info(_Other) -> - undefined. - -create_tables() -> - create_tables([?TABLE]). - -create_tables([]) -> - ok; -create_tables([{Table, Attributes} | Tables]) -> - case mnesia:create_table(Table, Attributes) of - {atomic, ok} -> create_tables(Tables); - {aborted, {already_exists, gm_group}} -> create_tables(Tables); - Err -> Err - end. - -table_definitions() -> - {Name, Attributes} = ?TABLE, - [{Name, [?TABLE_MATCH | Attributes]}]. - -start_link(GroupName, Module, Args) -> - gen_server2:start_link(?MODULE, [GroupName, Module, Args], []). - -leave(Server) -> - gen_server2:cast(Server, leave). - -broadcast(Server, Msg) -> - gen_server2:cast(Server, {broadcast, Msg}). - -confirmed_broadcast(Server, Msg) -> - gen_server2:call(Server, {confirmed_broadcast, Msg}, infinity). - -group_members(Server) -> - gen_server2:call(Server, group_members, infinity). - -flush(Server) -> - gen_server2:cast(Server, flush). - - -init([GroupName, Module, Args]) -> - {MegaSecs, Secs, MicroSecs} = now(), - random:seed(MegaSecs, Secs, MicroSecs), - gen_server2:cast(self(), join), - Self = self(), - {ok, #state { self = Self, - left = {Self, undefined}, - right = {Self, undefined}, - group_name = GroupName, - module = Module, - view = undefined, - pub_count = 0, - members_state = undefined, - callback_args = Args, - confirms = queue:new(), - broadcast_buffer = [], - broadcast_timer = undefined }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - - -handle_call({confirmed_broadcast, _Msg}, _From, - State = #state { members_state = undefined }) -> - reply(not_joined, State); - -handle_call({confirmed_broadcast, Msg}, _From, - State = #state { self = Self, - right = {Self, undefined}, - module = Module, - callback_args = Args }) -> - handle_callback_result({Module:handle_msg(Args, Self, Msg), ok, State}); - -handle_call({confirmed_broadcast, Msg}, From, State) -> - internal_broadcast(Msg, From, State); - -handle_call(group_members, _From, - State = #state { members_state = undefined }) -> - reply(not_joined, State); - -handle_call(group_members, _From, State = #state { view = View }) -> - reply(alive_view_members(View), State); - -handle_call({add_on_right, _NewMember}, _From, - State = #state { members_state = undefined }) -> - reply(not_ready, State); - -handle_call({add_on_right, NewMember}, _From, - State = #state { self = Self, - group_name = GroupName, - view = View, - members_state = MembersState, - module = Module, - callback_args = Args }) -> - Group = record_new_member_in_group( - GroupName, Self, NewMember, - fun (Group1) -> - View1 = group_to_view(Group1), - ok = send_right(NewMember, View1, - {catchup, Self, prepare_members_state( - MembersState)}) - end), - View2 = group_to_view(Group), - State1 = check_neighbours(State #state { view = View2 }), - Result = callback_view_changed(Args, Module, View, View2), - handle_callback_result({Result, {ok, Group}, State1}). - - -handle_cast({?TAG, ReqVer, Msg}, - State = #state { view = View, - group_name = GroupName, - module = Module, - callback_args = Args }) -> - {Result, State1} = - case needs_view_update(ReqVer, View) of - true -> - View1 = group_to_view(read_group(GroupName)), - {callback_view_changed(Args, Module, View, View1), - check_neighbours(State #state { view = View1 })}; - false -> - {ok, State} - end, - handle_callback_result( - if_callback_success( - Result, fun handle_msg_true/3, fun handle_msg_false/3, Msg, State1)); - -handle_cast({broadcast, _Msg}, State = #state { members_state = undefined }) -> - noreply(State); - -handle_cast({broadcast, Msg}, - State = #state { self = Self, - right = {Self, undefined}, - module = Module, - callback_args = Args }) -> - handle_callback_result({Module:handle_msg(Args, Self, Msg), State}); - -handle_cast({broadcast, Msg}, State) -> - internal_broadcast(Msg, none, State); - -handle_cast(join, State = #state { self = Self, - group_name = GroupName, - members_state = undefined, - module = Module, - callback_args = Args }) -> - View = join_group(Self, GroupName), - MembersState = - case alive_view_members(View) of - [Self] -> blank_member_state(); - _ -> undefined - end, - State1 = check_neighbours(State #state { view = View, - members_state = MembersState }), - handle_callback_result( - {Module:joined(Args, all_known_members(View)), State1}); - -handle_cast(leave, State) -> - {stop, normal, State}; - -handle_cast(flush, State) -> - noreply( - flush_broadcast_buffer(State #state { broadcast_timer = undefined })). - - -handle_info({'DOWN', MRef, process, _Pid, _Reason}, - State = #state { self = Self, - left = Left, - right = Right, - group_name = GroupName, - view = View, - module = Module, - callback_args = Args, - confirms = Confirms }) -> - Member = case {Left, Right} of - {{Member1, MRef}, _} -> Member1; - {_, {Member1, MRef}} -> Member1; - _ -> undefined - end, - case Member of - undefined -> - noreply(State); - _ -> - View1 = - group_to_view(record_dead_member_in_group(Member, GroupName)), - State1 = State #state { view = View1 }, - {Result, State2} = - case alive_view_members(View1) of - [Self] -> - maybe_erase_aliases( - State1 #state { - members_state = blank_member_state(), - confirms = purge_confirms(Confirms) }); - _ -> - %% here we won't be pointing out any deaths: - %% the concern is that there maybe births - %% which we'd otherwise miss. - {callback_view_changed(Args, Module, View, View1), - State1} - end, - handle_callback_result({Result, check_neighbours(State2)}) - end. - - -terminate(Reason, State = #state { module = Module, - callback_args = Args }) -> - flush_broadcast_buffer(State), - Module:terminate(Args, Reason). - - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -prioritise_cast(flush, _State) -> 1; -prioritise_cast(_ , _State) -> 0. - -prioritise_info({'DOWN', _MRef, process, _Pid, _Reason}, _State) -> 1; -prioritise_info(_ , _State) -> 0. - - -handle_msg(check_neighbours, State) -> - %% no-op - it's already been done by the calling handle_cast - {ok, State}; - -handle_msg({catchup, Left, MembersStateLeft}, - State = #state { self = Self, - left = {Left, _MRefL}, - right = {Right, _MRefR}, - view = View, - members_state = undefined }) -> - ok = send_right(Right, View, {catchup, Self, MembersStateLeft}), - MembersStateLeft1 = build_members_state(MembersStateLeft), - {ok, State #state { members_state = MembersStateLeft1 }}; - -handle_msg({catchup, Left, MembersStateLeft}, - State = #state { self = Self, - left = {Left, _MRefL}, - view = View, - members_state = MembersState }) - when MembersState =/= undefined -> - MembersStateLeft1 = build_members_state(MembersStateLeft), - AllMembers = lists:usort(?DICT:fetch_keys(MembersState) ++ - ?DICT:fetch_keys(MembersStateLeft1)), - {MembersState1, Activity} = - lists:foldl( - fun (Id, MembersStateActivity) -> - #member { pending_ack = PALeft, last_ack = LA } = - find_member_or_blank(Id, MembersStateLeft1), - with_member_acc( - fun (#member { pending_ack = PA } = Member, Activity1) -> - case is_member_alias(Id, Self, View) of - true -> - {_AcksInFlight, Pubs, _PA1} = - find_prefix_common_suffix(PALeft, PA), - {Member #member { last_ack = LA }, - activity_cons(Id, pubs_from_queue(Pubs), - [], Activity1)}; - false -> - {Acks, _Common, Pubs} = - find_prefix_common_suffix(PA, PALeft), - {Member, - activity_cons(Id, pubs_from_queue(Pubs), - acks_from_queue(Acks), - Activity1)} - end - end, Id, MembersStateActivity) - end, {MembersState, activity_nil()}, AllMembers), - handle_msg({activity, Left, activity_finalise(Activity)}, - State #state { members_state = MembersState1 }); - -handle_msg({catchup, _NotLeft, _MembersState}, State) -> - {ok, State}; - -handle_msg({activity, Left, Activity}, - State = #state { self = Self, - left = {Left, _MRefL}, - view = View, - members_state = MembersState, - confirms = Confirms }) - when MembersState =/= undefined -> - {MembersState1, {Confirms1, Activity1}} = - lists:foldl( - fun ({Id, Pubs, Acks}, MembersStateConfirmsActivity) -> - with_member_acc( - fun (Member = #member { pending_ack = PA, - last_pub = LP, - last_ack = LA }, - {Confirms2, Activity2}) -> - case is_member_alias(Id, Self, View) of - true -> - {ToAck, PA1} = - find_common(queue_from_pubs(Pubs), PA, - queue:new()), - LA1 = last_ack(Acks, LA), - AckNums = acks_from_queue(ToAck), - Confirms3 = maybe_confirm( - Self, Id, Confirms2, AckNums), - {Member #member { pending_ack = PA1, - last_ack = LA1 }, - {Confirms3, - activity_cons( - Id, [], AckNums, Activity2)}}; - false -> - PA1 = apply_acks(Acks, join_pubs(PA, Pubs)), - LA1 = last_ack(Acks, LA), - LP1 = last_pub(Pubs, LP), - {Member #member { pending_ack = PA1, - last_pub = LP1, - last_ack = LA1 }, - {Confirms2, - activity_cons(Id, Pubs, Acks, Activity2)}} - end - end, Id, MembersStateConfirmsActivity) - end, {MembersState, {Confirms, activity_nil()}}, Activity), - State1 = State #state { members_state = MembersState1, - confirms = Confirms1 }, - Activity3 = activity_finalise(Activity1), - {Result, State2} = maybe_erase_aliases(State1), - ok = maybe_send_activity(Activity3, State2), - if_callback_success( - Result, fun activity_true/3, fun activity_false/3, Activity3, State2); - -handle_msg({activity, _NotLeft, _Activity}, State) -> - {ok, State}. - - -noreply(State) -> - {noreply, ensure_broadcast_timer(State), hibernate}. - -reply(Reply, State) -> - {reply, Reply, ensure_broadcast_timer(State), hibernate}. - -ensure_broadcast_timer(State = #state { broadcast_buffer = [], - broadcast_timer = undefined }) -> - State; -ensure_broadcast_timer(State = #state { broadcast_buffer = [], - broadcast_timer = TRef }) -> - timer:cancel(TRef), - State #state { broadcast_timer = undefined }; -ensure_broadcast_timer(State = #state { broadcast_timer = undefined }) -> - {ok, TRef} = timer:apply_after(?BROADCAST_TIMER, ?MODULE, flush, [self()]), - State #state { broadcast_timer = TRef }; -ensure_broadcast_timer(State) -> - State. - -internal_broadcast(Msg, From, State = #state { self = Self, - pub_count = PubCount, - module = Module, - confirms = Confirms, - callback_args = Args, - broadcast_buffer = Buffer }) -> - Result = Module:handle_msg(Args, Self, Msg), - Buffer1 = [{PubCount, Msg} | Buffer], - Confirms1 = case From of - none -> Confirms; - _ -> queue:in({PubCount, From}, Confirms) - end, - State1 = State #state { pub_count = PubCount + 1, - confirms = Confirms1, - broadcast_buffer = Buffer1 }, - case From =/= none of - true -> - handle_callback_result({Result, flush_broadcast_buffer(State1)}); - false -> - handle_callback_result( - {Result, State1 #state { broadcast_buffer = Buffer1 }}) - end. - -flush_broadcast_buffer(State = #state { broadcast_buffer = [] }) -> - State; -flush_broadcast_buffer(State = #state { self = Self, - members_state = MembersState, - broadcast_buffer = Buffer }) -> - Pubs = lists:reverse(Buffer), - Activity = activity_cons(Self, Pubs, [], activity_nil()), - ok = maybe_send_activity(activity_finalise(Activity), State), - MembersState1 = with_member( - fun (Member = #member { pending_ack = PA }) -> - PA1 = queue:join(PA, queue:from_list(Pubs)), - Member #member { pending_ack = PA1 } - end, Self, MembersState), - State #state { members_state = MembersState1, - broadcast_buffer = [] }. - - -%% --------------------------------------------------------------------------- -%% View construction and inspection -%% --------------------------------------------------------------------------- - -needs_view_update(ReqVer, {Ver, _View}) -> - Ver < ReqVer. - -view_version({Ver, _View}) -> - Ver. - -is_member_alive({dead, _Member}) -> false; -is_member_alive(_) -> true. - -is_member_alias(Self, Self, _View) -> - true; -is_member_alias(Member, Self, View) -> - ?SETS:is_element(Member, - ((fetch_view_member(Self, View)) #view_member.aliases)). - -dead_member_id({dead, Member}) -> Member. - -store_view_member(VMember = #view_member { id = Id }, {Ver, View}) -> - {Ver, ?DICT:store(Id, VMember, View)}. - -with_view_member(Fun, View, Id) -> - store_view_member(Fun(fetch_view_member(Id, View)), View). - -fetch_view_member(Id, {_Ver, View}) -> - ?DICT:fetch(Id, View). - -find_view_member(Id, {_Ver, View}) -> - ?DICT:find(Id, View). - -blank_view(Ver) -> - {Ver, ?DICT:new()}. - -alive_view_members({_Ver, View}) -> - ?DICT:fetch_keys(View). - -all_known_members({_Ver, View}) -> - ?DICT:fold( - fun (Member, #view_member { aliases = Aliases }, Acc) -> - ?SETS:to_list(Aliases) ++ [Member | Acc] - end, [], View). - -group_to_view(#gm_group { members = Members, version = Ver }) -> - Alive = lists:filter(fun is_member_alive/1, Members), - [_|_] = Alive, %% ASSERTION - can't have all dead members - add_aliases(link_view(Alive ++ Alive ++ Alive, blank_view(Ver)), Members). - -link_view([Left, Middle, Right | Rest], View) -> - case find_view_member(Middle, View) of - error -> - link_view( - [Middle, Right | Rest], - store_view_member(#view_member { id = Middle, - aliases = ?SETS:new(), - left = Left, - right = Right }, View)); - {ok, _} -> - View - end; -link_view(_, View) -> - View. - -add_aliases(View, Members) -> - Members1 = ensure_alive_suffix(Members), - {EmptyDeadSet, View1} = - lists:foldl( - fun (Member, {DeadAcc, ViewAcc}) -> - case is_member_alive(Member) of - true -> - {?SETS:new(), - with_view_member( - fun (VMember = - #view_member { aliases = Aliases }) -> - VMember #view_member { - aliases = ?SETS:union(Aliases, DeadAcc) } - end, ViewAcc, Member)}; - false -> - {?SETS:add_element(dead_member_id(Member), DeadAcc), - ViewAcc} - end - end, {?SETS:new(), View}, Members1), - 0 = ?SETS:size(EmptyDeadSet), %% ASSERTION - View1. - -ensure_alive_suffix(Members) -> - queue:to_list(ensure_alive_suffix1(queue:from_list(Members))). - -ensure_alive_suffix1(MembersQ) -> - {{value, Member}, MembersQ1} = queue:out_r(MembersQ), - case is_member_alive(Member) of - true -> MembersQ; - false -> ensure_alive_suffix1(queue:in_r(Member, MembersQ1)) - end. - - -%% --------------------------------------------------------------------------- -%% View modification -%% --------------------------------------------------------------------------- - -join_group(Self, GroupName) -> - join_group(Self, GroupName, read_group(GroupName)). - -join_group(Self, GroupName, {error, not_found}) -> - join_group(Self, GroupName, prune_or_create_group(Self, GroupName)); -join_group(Self, _GroupName, #gm_group { members = [Self] } = Group) -> - group_to_view(Group); -join_group(Self, GroupName, #gm_group { members = Members } = Group) -> - case lists:member(Self, Members) of - true -> - group_to_view(Group); - false -> - case lists:filter(fun is_member_alive/1, Members) of - [] -> - join_group(Self, GroupName, - prune_or_create_group(Self, GroupName)); - Alive -> - Left = lists:nth(random:uniform(length(Alive)), Alive), - Handler = - fun () -> - join_group( - Self, GroupName, - record_dead_member_in_group(Left, GroupName)) - end, - try - case gen_server2:call( - Left, {add_on_right, Self}, infinity) of - {ok, Group1} -> group_to_view(Group1); - not_ready -> join_group(Self, GroupName) - end - catch - exit:{R, _} - when R =:= noproc; R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} - when R =:= nodedown; R =:= shutdown -> - Handler() - end - end - end. - -read_group(GroupName) -> - case mnesia:dirty_read(?GROUP_TABLE, GroupName) of - [] -> {error, not_found}; - [Group] -> Group - end. - -prune_or_create_group(Self, GroupName) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> GroupNew = #gm_group { name = GroupName, - members = [Self], - version = 0 }, - case mnesia:read({?GROUP_TABLE, GroupName}) of - [] -> - mnesia:write(GroupNew), - GroupNew; - [Group1 = #gm_group { members = Members }] -> - case lists:any(fun is_member_alive/1, Members) of - true -> Group1; - false -> mnesia:write(GroupNew), - GroupNew - end - end - end), - Group. - -record_dead_member_in_group(Member, GroupName) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> [Group1 = #gm_group { members = Members, version = Ver }] = - mnesia:read({?GROUP_TABLE, GroupName}), - case lists:splitwith( - fun (Member1) -> Member1 =/= Member end, Members) of - {_Members1, []} -> %% not found - already recorded dead - Group1; - {Members1, [Member | Members2]} -> - Members3 = Members1 ++ [{dead, Member} | Members2], - Group2 = Group1 #gm_group { members = Members3, - version = Ver + 1 }, - mnesia:write(Group2), - Group2 - end - end), - Group. - -record_new_member_in_group(GroupName, Left, NewMember, Fun) -> - {atomic, Group} = - mnesia:sync_transaction( - fun () -> - [#gm_group { members = Members, version = Ver } = Group1] = - mnesia:read({?GROUP_TABLE, GroupName}), - {Prefix, [Left | Suffix]} = - lists:splitwith(fun (M) -> M =/= Left end, Members), - Members1 = Prefix ++ [Left, NewMember | Suffix], - Group2 = Group1 #gm_group { members = Members1, - version = Ver + 1 }, - ok = Fun(Group2), - mnesia:write(Group2), - Group2 - end), - Group. - -erase_members_in_group(Members, GroupName) -> - DeadMembers = [{dead, Id} || Id <- Members], - {atomic, Group} = - mnesia:sync_transaction( - fun () -> - [Group1 = #gm_group { members = [_|_] = Members1, - version = Ver }] = - mnesia:read({?GROUP_TABLE, GroupName}), - case Members1 -- DeadMembers of - Members1 -> Group1; - Members2 -> Group2 = - Group1 #gm_group { members = Members2, - version = Ver + 1 }, - mnesia:write(Group2), - Group2 - end - end), - Group. - -maybe_erase_aliases(State = #state { self = Self, - group_name = GroupName, - view = View, - members_state = MembersState, - module = Module, - callback_args = Args }) -> - #view_member { aliases = Aliases } = fetch_view_member(Self, View), - {Erasable, MembersState1} - = ?SETS:fold( - fun (Id, {ErasableAcc, MembersStateAcc} = Acc) -> - #member { last_pub = LP, last_ack = LA } = - find_member_or_blank(Id, MembersState), - case can_erase_view_member(Self, Id, LA, LP) of - true -> {[Id | ErasableAcc], - erase_member(Id, MembersStateAcc)}; - false -> Acc - end - end, {[], MembersState}, Aliases), - State1 = State #state { members_state = MembersState1 }, - case Erasable of - [] -> {ok, State1}; - _ -> View1 = group_to_view( - erase_members_in_group(Erasable, GroupName)), - {callback_view_changed(Args, Module, View, View1), - State1 #state { view = View1 }} - end. - -can_erase_view_member(Self, Self, _LA, _LP) -> false; -can_erase_view_member(_Self, _Id, N, N) -> true; -can_erase_view_member(_Self, _Id, _LA, _LP) -> false. - - -%% --------------------------------------------------------------------------- -%% View monitoring and maintanence -%% --------------------------------------------------------------------------- - -ensure_neighbour(_Ver, Self, {Self, undefined}, Self) -> - {Self, undefined}; -ensure_neighbour(Ver, Self, {Self, undefined}, RealNeighbour) -> - ok = gen_server2:cast(RealNeighbour, {?TAG, Ver, check_neighbours}), - {RealNeighbour, maybe_monitor(RealNeighbour, Self)}; -ensure_neighbour(_Ver, _Self, {RealNeighbour, MRef}, RealNeighbour) -> - {RealNeighbour, MRef}; -ensure_neighbour(Ver, Self, {RealNeighbour, MRef}, Neighbour) -> - true = erlang:demonitor(MRef), - Msg = {?TAG, Ver, check_neighbours}, - ok = gen_server2:cast(RealNeighbour, Msg), - ok = case Neighbour of - Self -> ok; - _ -> gen_server2:cast(Neighbour, Msg) - end, - {Neighbour, maybe_monitor(Neighbour, Self)}. - -maybe_monitor(Self, Self) -> - undefined; -maybe_monitor(Other, _Self) -> - erlang:monitor(process, Other). - -check_neighbours(State = #state { self = Self, - left = Left, - right = Right, - view = View, - broadcast_buffer = Buffer }) -> - #view_member { left = VLeft, right = VRight } - = fetch_view_member(Self, View), - Ver = view_version(View), - Left1 = ensure_neighbour(Ver, Self, Left, VLeft), - Right1 = ensure_neighbour(Ver, Self, Right, VRight), - Buffer1 = case Right1 of - {Self, undefined} -> []; - _ -> Buffer - end, - State1 = State #state { left = Left1, right = Right1, - broadcast_buffer = Buffer1 }, - ok = maybe_send_catchup(Right, State1), - State1. - -maybe_send_catchup(Right, #state { right = Right }) -> - ok; -maybe_send_catchup(_Right, #state { self = Self, - right = {Self, undefined} }) -> - ok; -maybe_send_catchup(_Right, #state { members_state = undefined }) -> - ok; -maybe_send_catchup(_Right, #state { self = Self, - right = {Right, _MRef}, - view = View, - members_state = MembersState }) -> - send_right(Right, View, - {catchup, Self, prepare_members_state(MembersState)}). - - -%% --------------------------------------------------------------------------- -%% Catch_up delta detection -%% --------------------------------------------------------------------------- - -find_prefix_common_suffix(A, B) -> - {Prefix, A1} = find_prefix(A, B, queue:new()), - {Common, Suffix} = find_common(A1, B, queue:new()), - {Prefix, Common, Suffix}. - -%% Returns the elements of A that occur before the first element of B, -%% plus the remainder of A. -find_prefix(A, B, Prefix) -> - case {queue:out(A), queue:out(B)} of - {{{value, Val}, _A1}, {{value, Val}, _B1}} -> - {Prefix, A}; - {{empty, A1}, {{value, _A}, _B1}} -> - {Prefix, A1}; - {{{value, {NumA, _MsgA} = Val}, A1}, - {{value, {NumB, _MsgB}}, _B1}} when NumA < NumB -> - find_prefix(A1, B, queue:in(Val, Prefix)); - {_, {empty, _B1}} -> - {A, Prefix} %% Prefix well be empty here - end. - -%% A should be a prefix of B. Returns the commonality plus the -%% remainder of B. -find_common(A, B, Common) -> - case {queue:out(A), queue:out(B)} of - {{{value, Val}, A1}, {{value, Val}, B1}} -> - find_common(A1, B1, queue:in(Val, Common)); - {{empty, _A}, _} -> - {Common, B} - end. - - -%% --------------------------------------------------------------------------- -%% Members helpers -%% --------------------------------------------------------------------------- - -with_member(Fun, Id, MembersState) -> - store_member( - Id, Fun(find_member_or_blank(Id, MembersState)), MembersState). - -with_member_acc(Fun, Id, {MembersState, Acc}) -> - {MemberState, Acc1} = Fun(find_member_or_blank(Id, MembersState), Acc), - {store_member(Id, MemberState, MembersState), Acc1}. - -find_member_or_blank(Id, MembersState) -> - case ?DICT:find(Id, MembersState) of - {ok, Result} -> Result; - error -> blank_member() - end. - -erase_member(Id, MembersState) -> - ?DICT:erase(Id, MembersState). - -blank_member() -> - #member { pending_ack = queue:new(), last_pub = -1, last_ack = -1 }. - -blank_member_state() -> - ?DICT:new(). - -store_member(Id, MemberState, MembersState) -> - ?DICT:store(Id, MemberState, MembersState). - -prepare_members_state(MembersState) -> - ?DICT:to_list(MembersState). - -build_members_state(MembersStateList) -> - ?DICT:from_list(MembersStateList). - - -%% --------------------------------------------------------------------------- -%% Activity assembly -%% --------------------------------------------------------------------------- - -activity_nil() -> - queue:new(). - -activity_cons(_Id, [], [], Tail) -> - Tail; -activity_cons(Sender, Pubs, Acks, Tail) -> - queue:in({Sender, Pubs, Acks}, Tail). - -activity_finalise(Activity) -> - queue:to_list(Activity). - -maybe_send_activity([], _State) -> - ok; -maybe_send_activity(Activity, #state { self = Self, - right = {Right, _MRefR}, - view = View }) -> - send_right(Right, View, {activity, Self, Activity}). - -send_right(Right, View, Msg) -> - ok = gen_server2:cast(Right, {?TAG, view_version(View), Msg}). - -callback(Args, Module, Activity) -> - lists:foldl( - fun ({Id, Pubs, _Acks}, ok) -> - lists:foldl(fun ({_PubNum, Pub}, ok) -> - Module:handle_msg(Args, Id, Pub); - (_, Error) -> - Error - end, ok, Pubs); - (_, Error) -> - Error - end, ok, Activity). - -callback_view_changed(Args, Module, OldView, NewView) -> - OldMembers = all_known_members(OldView), - NewMembers = all_known_members(NewView), - Births = NewMembers -- OldMembers, - Deaths = OldMembers -- NewMembers, - case {Births, Deaths} of - {[], []} -> ok; - _ -> Module:members_changed(Args, Births, Deaths) - end. - -handle_callback_result({Result, State}) -> - if_callback_success( - Result, fun no_reply_true/3, fun no_reply_false/3, undefined, State); -handle_callback_result({Result, Reply, State}) -> - if_callback_success( - Result, fun reply_true/3, fun reply_false/3, Reply, State). - -no_reply_true (_Result, _Undefined, State) -> noreply(State). -no_reply_false({stop, Reason}, _Undefined, State) -> {stop, Reason, State}. - -reply_true (_Result, Reply, State) -> reply(Reply, State). -reply_false({stop, Reason}, Reply, State) -> {stop, Reason, Reply, State}. - -handle_msg_true (_Result, Msg, State) -> handle_msg(Msg, State). -handle_msg_false(Result, _Msg, State) -> {Result, State}. - -activity_true(_Result, Activity, State = #state { module = Module, - callback_args = Args }) -> - {callback(Args, Module, Activity), State}. -activity_false(Result, _Activity, State) -> - {Result, State}. - -if_callback_success(ok, True, _False, Arg, State) -> - True(ok, Arg, State); -if_callback_success( - {become, Module, Args} = Result, True, _False, Arg, State) -> - True(Result, Arg, State #state { module = Module, - callback_args = Args }); -if_callback_success({stop, _Reason} = Result, _True, False, Arg, State) -> - False(Result, Arg, State). - -maybe_confirm(_Self, _Id, Confirms, []) -> - Confirms; -maybe_confirm(Self, Self, Confirms, [PubNum | PubNums]) -> - case queue:out(Confirms) of - {empty, _Confirms} -> - Confirms; - {{value, {PubNum, From}}, Confirms1} -> - gen_server2:reply(From, ok), - maybe_confirm(Self, Self, Confirms1, PubNums); - {{value, {PubNum1, _From}}, _Confirms} when PubNum1 > PubNum -> - maybe_confirm(Self, Self, Confirms, PubNums) - end; -maybe_confirm(_Self, _Id, Confirms, _PubNums) -> - Confirms. - -purge_confirms(Confirms) -> - [gen_server2:reply(From, ok) || {_PubNum, From} <- queue:to_list(Confirms)], - queue:new(). - - -%% --------------------------------------------------------------------------- -%% Msg transformation -%% --------------------------------------------------------------------------- - -acks_from_queue(Q) -> - [PubNum || {PubNum, _Msg} <- queue:to_list(Q)]. - -pubs_from_queue(Q) -> - queue:to_list(Q). - -queue_from_pubs(Pubs) -> - queue:from_list(Pubs). - -apply_acks([], Pubs) -> - Pubs; -apply_acks(List, Pubs) -> - {_, Pubs1} = queue:split(length(List), Pubs), - Pubs1. - -join_pubs(Q, []) -> Q; -join_pubs(Q, Pubs) -> queue:join(Q, queue_from_pubs(Pubs)). - -last_ack([], LA) -> - LA; -last_ack(List, LA) -> - LA1 = lists:last(List), - true = LA1 > LA, %% ASSERTION - LA1. - -last_pub([], LP) -> - LP; -last_pub(List, LP) -> - {PubNum, _Msg} = lists:last(List), - true = PubNum > LP, %% ASSERTION - PubNum. diff --git a/src/gm_soak_test.erl b/src/gm_soak_test.erl deleted file mode 100644 index 5e5a3a5a..00000000 --- a/src/gm_soak_test.erl +++ /dev/null @@ -1,131 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_soak_test). - --export([test/0]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - -%% --------------------------------------------------------------------------- -%% Soak test -%% --------------------------------------------------------------------------- - -get_state() -> - get(state). - -with_state(Fun) -> - put(state, Fun(get_state())). - -inc() -> - case 1 + get(count) of - 100000 -> Now = now(), - Start = put(ts, Now), - Diff = timer:now_diff(Now, Start), - Rate = 100000 / (Diff / 1000000), - io:format("~p seeing ~p msgs/sec~n", [self(), Rate]), - put(count, 0); - N -> put(count, N) - end. - -joined([], Members) -> - io:format("Joined ~p (~p members)~n", [self(), length(Members)]), - put(state, dict:from_list([{Member, empty} || Member <- Members])), - put(count, 0), - put(ts, now()), - ok. - -members_changed([], Births, Deaths) -> - with_state( - fun (State) -> - State1 = - lists:foldl( - fun (Born, StateN) -> - false = dict:is_key(Born, StateN), - dict:store(Born, empty, StateN) - end, State, Births), - lists:foldl( - fun (Died, StateN) -> - true = dict:is_key(Died, StateN), - dict:store(Died, died, StateN) - end, State1, Deaths) - end), - ok. - -handle_msg([], From, {test_msg, Num}) -> - inc(), - with_state( - fun (State) -> - ok = case dict:find(From, State) of - {ok, died} -> - exit({{from, From}, - {received_posthumous_delivery, Num}}); - {ok, empty} -> ok; - {ok, Num} -> ok; - {ok, Num1} when Num < Num1 -> - exit({{from, From}, - {duplicate_delivery_of, Num}, - {expecting, Num1}}); - {ok, Num1} -> - exit({{from, From}, - {received_early, Num}, - {expecting, Num1}}); - error -> - exit({{from, From}, - {received_premature_delivery, Num}}) - end, - dict:store(From, Num + 1, State) - end), - ok. - -terminate([], Reason) -> - io:format("Left ~p (~p)~n", [self(), Reason]), - ok. - -spawn_member() -> - spawn_link( - fun () -> - {MegaSecs, Secs, MicroSecs} = now(), - random:seed(MegaSecs, Secs, MicroSecs), - %% start up delay of no more than 10 seconds - timer:sleep(random:uniform(10000)), - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, []), - Start = random:uniform(10000), - send_loop(Pid, Start, Start + random:uniform(10000)), - gm:leave(Pid), - spawn_more() - end). - -spawn_more() -> - [spawn_member() || _ <- lists:seq(1, 4 - random:uniform(4))]. - -send_loop(_Pid, Target, Target) -> - ok; -send_loop(Pid, Count, Target) when Target > Count -> - case random:uniform(3) of - 3 -> gm:confirmed_broadcast(Pid, {test_msg, Count}); - _ -> gm:broadcast(Pid, {test_msg, Count}) - end, - timer:sleep(random:uniform(5) - 1), %% sleep up to 4 ms - send_loop(Pid, Count + 1, Target). - -test() -> - ok = gm:create_tables(), - spawn_member(), - spawn_member(). diff --git a/src/gm_speed_test.erl b/src/gm_speed_test.erl deleted file mode 100644 index defb0f29..00000000 --- a/src/gm_speed_test.erl +++ /dev/null @@ -1,82 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_speed_test). - --export([test/3]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). --export([wile_e_coyote/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - -%% callbacks - -joined(Owner, _Members) -> - Owner ! joined, - ok. - -members_changed(_Owner, _Births, _Deaths) -> - ok. - -handle_msg(Owner, _From, ping) -> - Owner ! ping, - ok. - -terminate(Owner, _Reason) -> - Owner ! terminated, - ok. - -%% other - -wile_e_coyote(Time, WriteUnit) -> - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, self()), - receive joined -> ok end, - timer:sleep(1000), %% wait for all to join - timer:send_after(Time, stop), - Start = now(), - {Sent, Received} = loop(Pid, WriteUnit, 0, 0), - End = now(), - ok = gm:leave(Pid), - receive terminated -> ok end, - Elapsed = timer:now_diff(End, Start) / 1000000, - io:format("Sending rate: ~p msgs/sec~nReceiving rate: ~p msgs/sec~n~n", - [Sent/Elapsed, Received/Elapsed]), - ok. - -loop(Pid, WriteUnit, Sent, Received) -> - case read(Received) of - {stop, Received1} -> {Sent, Received1}; - {ok, Received1} -> ok = write(Pid, WriteUnit), - loop(Pid, WriteUnit, Sent + WriteUnit, Received1) - end. - -read(Count) -> - receive - ping -> read(Count + 1); - stop -> {stop, Count} - after 5 -> - {ok, Count} - end. - -write(_Pid, 0) -> ok; -write(Pid, N) -> ok = gm:broadcast(Pid, ping), - write(Pid, N - 1). - -test(Time, WriteUnit, Nodes) -> - ok = gm:create_tables(), - [spawn(Node, ?MODULE, wile_e_coyote, [Time, WriteUnit]) || Node <- Nodes]. diff --git a/src/gm_tests.erl b/src/gm_tests.erl deleted file mode 100644 index ca0ffd64..00000000 --- a/src/gm_tests.erl +++ /dev/null @@ -1,182 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(gm_tests). - --export([test_join_leave/0, - test_broadcast/0, - test_confirmed_broadcast/0, - test_member_death/0, - test_receive_in_order/0, - all_tests/0]). --export([joined/2, members_changed/3, handle_msg/3, terminate/2]). - --behaviour(gm). - --include("gm_specs.hrl"). - --define(RECEIVE_OR_THROW(Body, Bool, Error), - receive Body -> - true = Bool, - passed - after 1000 -> - throw(Error) - end). - -joined(Pid, Members) -> - Pid ! {joined, self(), Members}, - ok. - -members_changed(Pid, Births, Deaths) -> - Pid ! {members_changed, self(), Births, Deaths}, - ok. - -handle_msg(Pid, From, Msg) -> - Pid ! {msg, self(), From, Msg}, - ok. - -terminate(Pid, Reason) -> - Pid ! {termination, self(), Reason}, - ok. - -%% --------------------------------------------------------------------------- -%% Functional tests -%% --------------------------------------------------------------------------- - -all_tests() -> - passed = test_join_leave(), - passed = test_broadcast(), - passed = test_confirmed_broadcast(), - passed = test_member_death(), - passed = test_receive_in_order(), - passed. - -test_join_leave() -> - with_two_members(fun (_Pid, _Pid2) -> passed end). - -test_broadcast() -> - test_broadcast(fun gm:broadcast/2). - -test_confirmed_broadcast() -> - test_broadcast(fun gm:confirmed_broadcast/2). - -test_member_death() -> - with_two_members( - fun (Pid, Pid2) -> - {ok, Pid3} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid3, [Pid, Pid2, Pid3], - timeout_joining_gm_group_3), - passed = receive_birth(Pid, Pid3, timeout_waiting_for_birth_3_1), - passed = receive_birth(Pid2, Pid3, timeout_waiting_for_birth_3_2), - - unlink(Pid3), - exit(Pid3, kill), - - %% Have to do some broadcasts to ensure that all members - %% find out about the death. - passed = (test_broadcast_fun(fun gm:confirmed_broadcast/2))( - Pid, Pid2), - - passed = receive_death(Pid, Pid3, timeout_waiting_for_death_3_1), - passed = receive_death(Pid2, Pid3, timeout_waiting_for_death_3_2), - - passed - end). - -test_receive_in_order() -> - with_two_members( - fun (Pid, Pid2) -> - Numbers = lists:seq(1,1000), - [begin ok = gm:broadcast(Pid, N), ok = gm:broadcast(Pid2, N) end - || N <- Numbers], - passed = receive_numbers( - Pid, Pid, {timeout_for_msgs, Pid, Pid}, Numbers), - passed = receive_numbers( - Pid, Pid2, {timeout_for_msgs, Pid, Pid2}, Numbers), - passed = receive_numbers( - Pid2, Pid, {timeout_for_msgs, Pid2, Pid}, Numbers), - passed = receive_numbers( - Pid2, Pid2, {timeout_for_msgs, Pid2, Pid2}, Numbers), - passed - end). - -test_broadcast(Fun) -> - with_two_members(test_broadcast_fun(Fun)). - -test_broadcast_fun(Fun) -> - fun (Pid, Pid2) -> - ok = Fun(Pid, magic_message), - passed = receive_or_throw({msg, Pid, Pid, magic_message}, - timeout_waiting_for_msg), - passed = receive_or_throw({msg, Pid2, Pid, magic_message}, - timeout_waiting_for_msg) - end. - -with_two_members(Fun) -> - ok = gm:create_tables(), - - {ok, Pid} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid, [Pid], timeout_joining_gm_group_1), - - {ok, Pid2} = gm:start_link(?MODULE, ?MODULE, self()), - passed = receive_joined(Pid2, [Pid, Pid2], timeout_joining_gm_group_2), - passed = receive_birth(Pid, Pid2, timeout_waiting_for_birth_2), - - passed = Fun(Pid, Pid2), - - ok = gm:leave(Pid), - passed = receive_death(Pid2, Pid, timeout_waiting_for_death_1), - passed = - receive_termination(Pid, normal, timeout_waiting_for_termination_1), - - ok = gm:leave(Pid2), - passed = - receive_termination(Pid2, normal, timeout_waiting_for_termination_2), - - receive X -> throw({unexpected_message, X}) - after 0 -> passed - end. - -receive_or_throw(Pattern, Error) -> - ?RECEIVE_OR_THROW(Pattern, true, Error). - -receive_birth(From, Born, Error) -> - ?RECEIVE_OR_THROW({members_changed, From, Birth, Death}, - ([Born] == Birth) andalso ([] == Death), - Error). - -receive_death(From, Died, Error) -> - ?RECEIVE_OR_THROW({members_changed, From, Birth, Death}, - ([] == Birth) andalso ([Died] == Death), - Error). - -receive_joined(From, Members, Error) -> - ?RECEIVE_OR_THROW({joined, From, Members1}, - lists:usort(Members) == lists:usort(Members1), - Error). - -receive_termination(From, Reason, Error) -> - ?RECEIVE_OR_THROW({termination, From, Reason1}, - Reason == Reason1, - Error). - -receive_numbers(_Pid, _Sender, _Error, []) -> - passed; -receive_numbers(Pid, Sender, Error, [N | Numbers]) -> - ?RECEIVE_OR_THROW({msg, Pid, Sender, M}, - M == N, - Error), - receive_numbers(Pid, Sender, Error, Numbers). diff --git a/src/pg2_fixed.erl b/src/pg2_fixed.erl deleted file mode 100644 index 224715eb..00000000 --- a/src/pg2_fixed.erl +++ /dev/null @@ -1,388 +0,0 @@ -%% This is the version of pg2 from R14B02, which contains the fix -%% described at -%% http://erlang.2086793.n4.nabble.com/pg2-still-busted-in-R13B04-td2230601.html. -%% The only changes are a search-and-replace to rename the module and -%% avoid clashes with other versions of pg2. - - -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2010. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(pg2_fixed). - --export([create/1, delete/1, join/2, leave/2]). --export([get_members/1, get_local_members/1]). --export([get_closest_pid/1, which_groups/0]). --export([start/0,start_link/0,init/1,handle_call/3,handle_cast/2,handle_info/2, - terminate/2]). - -%%% As of R13B03 monitors are used instead of links. - -%%% -%%% Exported functions -%%% - --spec start_link() -> {'ok', pid()} | {'error', term()}. - -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). - --spec start() -> {'ok', pid()} | {'error', term()}. - -start() -> - ensure_started(). - --spec create(term()) -> 'ok'. - -create(Name) -> - ensure_started(), - case ets:member(pg2_fixed_table, {group, Name}) of - false -> - global:trans({{?MODULE, Name}, self()}, - fun() -> - gen_server:multi_call(?MODULE, {create, Name}) - end), - ok; - true -> - ok - end. - --type name() :: term(). - --spec delete(name()) -> 'ok'. - -delete(Name) -> - ensure_started(), - global:trans({{?MODULE, Name}, self()}, - fun() -> - gen_server:multi_call(?MODULE, {delete, Name}) - end), - ok. - --spec join(name(), pid()) -> 'ok' | {'error', {'no_such_group', term()}}. - -join(Name, Pid) when is_pid(Pid) -> - ensure_started(), - case ets:member(pg2_fixed_table, {group, Name}) of - false -> - {error, {no_such_group, Name}}; - true -> - global:trans({{?MODULE, Name}, self()}, - fun() -> - gen_server:multi_call(?MODULE, - {join, Name, Pid}) - end), - ok - end. - --spec leave(name(), pid()) -> 'ok' | {'error', {'no_such_group', name()}}. - -leave(Name, Pid) when is_pid(Pid) -> - ensure_started(), - case ets:member(pg2_fixed_table, {group, Name}) of - false -> - {error, {no_such_group, Name}}; - true -> - global:trans({{?MODULE, Name}, self()}, - fun() -> - gen_server:multi_call(?MODULE, - {leave, Name, Pid}) - end), - ok - end. - --type get_members_ret() :: [pid()] | {'error', {'no_such_group', name()}}. - --spec get_members(name()) -> get_members_ret(). - -get_members(Name) -> - ensure_started(), - case ets:member(pg2_fixed_table, {group, Name}) of - true -> - group_members(Name); - false -> - {error, {no_such_group, Name}} - end. - --spec get_local_members(name()) -> get_members_ret(). - -get_local_members(Name) -> - ensure_started(), - case ets:member(pg2_fixed_table, {group, Name}) of - true -> - local_group_members(Name); - false -> - {error, {no_such_group, Name}} - end. - --spec which_groups() -> [name()]. - -which_groups() -> - ensure_started(), - all_groups(). - --type gcp_error_reason() :: {'no_process', term()} | {'no_such_group', term()}. - --spec get_closest_pid(term()) -> pid() | {'error', gcp_error_reason()}. - -get_closest_pid(Name) -> - case get_local_members(Name) of - [Pid] -> - Pid; - [] -> - {_,_,X} = erlang:now(), - case get_members(Name) of - [] -> {error, {no_process, Name}}; - Members -> - lists:nth((X rem length(Members))+1, Members) - end; - Members when is_list(Members) -> - {_,_,X} = erlang:now(), - lists:nth((X rem length(Members))+1, Members); - Else -> - Else - end. - -%%% -%%% Callback functions from gen_server -%%% - --record(state, {}). - --spec init([]) -> {'ok', #state{}}. - -init([]) -> - Ns = nodes(), - net_kernel:monitor_nodes(true), - lists:foreach(fun(N) -> - {?MODULE, N} ! {new_pg2_fixed, node()}, - self() ! {nodeup, N} - end, Ns), - pg2_fixed_table = ets:new(pg2_fixed_table, [ordered_set, protected, named_table]), - {ok, #state{}}. - --type call() :: {'create', name()} - | {'delete', name()} - | {'join', name(), pid()} - | {'leave', name(), pid()}. - --spec handle_call(call(), _, #state{}) -> - {'reply', 'ok', #state{}}. - -handle_call({create, Name}, _From, S) -> - assure_group(Name), - {reply, ok, S}; -handle_call({join, Name, Pid}, _From, S) -> - ets:member(pg2_fixed_table, {group, Name}) andalso join_group(Name, Pid), - {reply, ok, S}; -handle_call({leave, Name, Pid}, _From, S) -> - ets:member(pg2_fixed_table, {group, Name}) andalso leave_group(Name, Pid), - {reply, ok, S}; -handle_call({delete, Name}, _From, S) -> - delete_group(Name), - {reply, ok, S}; -handle_call(Request, From, S) -> - error_logger:warning_msg("The pg2_fixed server received an unexpected message:\n" - "handle_call(~p, ~p, _)\n", - [Request, From]), - {noreply, S}. - --type all_members() :: [[name(),...]]. --type cast() :: {'exchange', node(), all_members()} - | {'del_member', name(), pid()}. - --spec handle_cast(cast(), #state{}) -> {'noreply', #state{}}. - -handle_cast({exchange, _Node, List}, S) -> - store(List), - {noreply, S}; -handle_cast(_, S) -> - %% Ignore {del_member, Name, Pid}. - {noreply, S}. - --spec handle_info(tuple(), #state{}) -> {'noreply', #state{}}. - -handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S) -> - member_died(MonitorRef), - {noreply, S}; -handle_info({nodeup, Node}, S) -> - gen_server:cast({?MODULE, Node}, {exchange, node(), all_members()}), - {noreply, S}; -handle_info({new_pg2_fixed, Node}, S) -> - gen_server:cast({?MODULE, Node}, {exchange, node(), all_members()}), - {noreply, S}; -handle_info(_, S) -> - {noreply, S}. - --spec terminate(term(), #state{}) -> 'ok'. - -terminate(_Reason, _S) -> - true = ets:delete(pg2_fixed_table), - ok. - -%%% -%%% Local functions -%%% - -%%% One ETS table, pg2_fixed_table, is used for bookkeeping. The type of the -%%% table is ordered_set, and the fast matching of partially -%%% instantiated keys is used extensively. -%%% -%%% {{group, Name}} -%%% Process group Name. -%%% {{ref, Pid}, RPid, MonitorRef, Counter} -%%% {{ref, MonitorRef}, Pid} -%%% Each process has one monitor. Sometimes a process is spawned to -%%% monitor the pid (RPid). Counter is incremented when the Pid joins -%%% some group. -%%% {{member, Name, Pid}, GroupCounter} -%%% {{local_member, Name, Pid}} -%%% Pid is a member of group Name, GroupCounter is incremented when the -%%% Pid joins the group Name. -%%% {{pid, Pid, Name}} -%%% Pid is a member of group Name. - -store(List) -> - _ = [(assure_group(Name) - andalso - [join_group(Name, P) || P <- Members -- group_members(Name)]) || - [Name, Members] <- List], - ok. - -assure_group(Name) -> - Key = {group, Name}, - ets:member(pg2_fixed_table, Key) orelse true =:= ets:insert(pg2_fixed_table, {Key}). - -delete_group(Name) -> - _ = [leave_group(Name, Pid) || Pid <- group_members(Name)], - true = ets:delete(pg2_fixed_table, {group, Name}), - ok. - -member_died(Ref) -> - [{{ref, Ref}, Pid}] = ets:lookup(pg2_fixed_table, {ref, Ref}), - Names = member_groups(Pid), - _ = [leave_group(Name, P) || - Name <- Names, - P <- member_in_group(Pid, Name)], - %% Kept for backward compatibility with links. Can be removed, eventually. - _ = [gen_server:abcast(nodes(), ?MODULE, {del_member, Name, Pid}) || - Name <- Names], - ok. - -join_group(Name, Pid) -> - Ref_Pid = {ref, Pid}, - try _ = ets:update_counter(pg2_fixed_table, Ref_Pid, {4, +1}) - catch _:_ -> - {RPid, Ref} = do_monitor(Pid), - true = ets:insert(pg2_fixed_table, {Ref_Pid, RPid, Ref, 1}), - true = ets:insert(pg2_fixed_table, {{ref, Ref}, Pid}) - end, - Member_Name_Pid = {member, Name, Pid}, - try _ = ets:update_counter(pg2_fixed_table, Member_Name_Pid, {2, +1, 1, 1}) - catch _:_ -> - true = ets:insert(pg2_fixed_table, {Member_Name_Pid, 1}), - _ = [ets:insert(pg2_fixed_table, {{local_member, Name, Pid}}) || - node(Pid) =:= node()], - true = ets:insert(pg2_fixed_table, {{pid, Pid, Name}}) - end. - -leave_group(Name, Pid) -> - Member_Name_Pid = {member, Name, Pid}, - try ets:update_counter(pg2_fixed_table, Member_Name_Pid, {2, -1, 0, 0}) of - N -> - if - N =:= 0 -> - true = ets:delete(pg2_fixed_table, {pid, Pid, Name}), - _ = [ets:delete(pg2_fixed_table, {local_member, Name, Pid}) || - node(Pid) =:= node()], - true = ets:delete(pg2_fixed_table, Member_Name_Pid); - true -> - ok - end, - Ref_Pid = {ref, Pid}, - case ets:update_counter(pg2_fixed_table, Ref_Pid, {4, -1}) of - 0 -> - [{Ref_Pid,RPid,Ref,0}] = ets:lookup(pg2_fixed_table, Ref_Pid), - true = ets:delete(pg2_fixed_table, {ref, Ref}), - true = ets:delete(pg2_fixed_table, Ref_Pid), - true = erlang:demonitor(Ref, [flush]), - kill_monitor_proc(RPid, Pid); - _ -> - ok - end - catch _:_ -> - ok - end. - -all_members() -> - [[G, group_members(G)] || G <- all_groups()]. - -group_members(Name) -> - [P || - [P, N] <- ets:match(pg2_fixed_table, {{member, Name, '$1'},'$2'}), - _ <- lists:seq(1, N)]. - -local_group_members(Name) -> - [P || - [Pid] <- ets:match(pg2_fixed_table, {{local_member, Name, '$1'}}), - P <- member_in_group(Pid, Name)]. - -member_in_group(Pid, Name) -> - case ets:lookup(pg2_fixed_table, {member, Name, Pid}) of - [] -> []; - [{{member, Name, Pid}, N}] -> - lists:duplicate(N, Pid) - end. - -member_groups(Pid) -> - [Name || [Name] <- ets:match(pg2_fixed_table, {{pid, Pid, '$1'}})]. - -all_groups() -> - [N || [N] <- ets:match(pg2_fixed_table, {{group,'$1'}})]. - -ensure_started() -> - case whereis(?MODULE) of - undefined -> - C = {pg2_fixed, {?MODULE, start_link, []}, permanent, - 1000, worker, [?MODULE]}, - supervisor:start_child(kernel_safe_sup, C); - Pg2_FixedPid -> - {ok, Pg2_FixedPid} - end. - - -kill_monitor_proc(RPid, Pid) -> - RPid =:= Pid orelse exit(RPid, kill). - -%% When/if erlang:monitor() returns before trying to connect to the -%% other node this function can be removed. -do_monitor(Pid) -> - case (node(Pid) =:= node()) orelse lists:member(node(Pid), nodes()) of - true -> - %% Assume the node is still up - {Pid, erlang:monitor(process, Pid)}; - false -> - F = fun() -> - Ref = erlang:monitor(process, Pid), - receive - {'DOWN', Ref, process, Pid, _Info} -> - exit(normal) - end - end, - erlang:spawn_monitor(F) - end. diff --git a/src/priority_queue.erl b/src/priority_queue.erl deleted file mode 100644 index 4fc8b469..00000000 --- a/src/priority_queue.erl +++ /dev/null @@ -1,194 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% Priority queues have essentially the same interface as ordinary -%% queues, except that a) there is an in/3 that takes a priority, and -%% b) we have only implemented the core API we need. -%% -%% Priorities should be integers - the higher the value the higher the -%% priority - but we don't actually check that. -%% -%% in/2 inserts items with priority 0. -%% -%% We optimise the case where a priority queue is being used just like -%% an ordinary queue. When that is the case we represent the priority -%% queue as an ordinary queue. We could just call into the 'queue' -%% module for that, but for efficiency we implement the relevant -%% functions directly in here, thus saving on inter-module calls and -%% eliminating a level of boxing. -%% -%% When the queue contains items with non-zero priorities, it is -%% represented as a sorted kv list with the inverted Priority as the -%% key and an ordinary queue as the value. Here again we use our own -%% ordinary queue implemention for efficiency, often making recursive -%% calls into the same function knowing that ordinary queues represent -%% a base case. - - --module(priority_queue). - --export([new/0, is_queue/1, is_empty/1, len/1, to_list/1, in/2, in/3, - out/1, join/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([q/0]). - --type(q() :: pqueue()). --type(priority() :: integer() | 'infinity'). --type(squeue() :: {queue, [any()], [any()]}). --type(pqueue() :: squeue() | {pqueue, [{priority(), squeue()}]}). - --spec(new/0 :: () -> pqueue()). --spec(is_queue/1 :: (any()) -> boolean()). --spec(is_empty/1 :: (pqueue()) -> boolean()). --spec(len/1 :: (pqueue()) -> non_neg_integer()). --spec(to_list/1 :: (pqueue()) -> [{priority(), any()}]). --spec(in/2 :: (any(), pqueue()) -> pqueue()). --spec(in/3 :: (any(), priority(), pqueue()) -> pqueue()). --spec(out/1 :: (pqueue()) -> {empty | {value, any()}, pqueue()}). --spec(join/2 :: (pqueue(), pqueue()) -> pqueue()). - --endif. - -%%---------------------------------------------------------------------------- - -new() -> - {queue, [], []}. - -is_queue({queue, R, F}) when is_list(R), is_list(F) -> - true; -is_queue({pqueue, Queues}) when is_list(Queues) -> - lists:all(fun ({infinity, Q}) -> is_queue(Q); - ({P, Q}) -> is_integer(P) andalso is_queue(Q) - end, Queues); -is_queue(_) -> - false. - -is_empty({queue, [], []}) -> - true; -is_empty(_) -> - false. - -len({queue, R, F}) when is_list(R), is_list(F) -> - length(R) + length(F); -len({pqueue, Queues}) -> - lists:sum([len(Q) || {_, Q} <- Queues]). - -to_list({queue, In, Out}) when is_list(In), is_list(Out) -> - [{0, V} || V <- Out ++ lists:reverse(In, [])]; -to_list({pqueue, Queues}) -> - [{maybe_negate_priority(P), V} || {P, Q} <- Queues, - {0, V} <- to_list(Q)]. - -in(Item, Q) -> - in(Item, 0, Q). - -in(X, 0, {queue, [_] = In, []}) -> - {queue, [X], In}; -in(X, 0, {queue, In, Out}) when is_list(In), is_list(Out) -> - {queue, [X|In], Out}; -in(X, Priority, _Q = {queue, [], []}) -> - in(X, Priority, {pqueue, []}); -in(X, Priority, Q = {queue, _, _}) -> - in(X, Priority, {pqueue, [{0, Q}]}); -in(X, Priority, {pqueue, Queues}) -> - P = maybe_negate_priority(Priority), - {pqueue, case lists:keysearch(P, 1, Queues) of - {value, {_, Q}} -> - lists:keyreplace(P, 1, Queues, {P, in(X, Q)}); - false when P == infinity -> - [{P, {queue, [X], []}} | Queues]; - false -> - case Queues of - [{infinity, InfQueue} | Queues1] -> - [{infinity, InfQueue} | - lists:keysort(1, [{P, {queue, [X], []}} | Queues1])]; - _ -> - lists:keysort(1, [{P, {queue, [X], []}} | Queues]) - end - end}. - -out({queue, [], []} = Q) -> - {empty, Q}; -out({queue, [V], []}) -> - {{value, V}, {queue, [], []}}; -out({queue, [Y|In], []}) -> - [V|Out] = lists:reverse(In, []), - {{value, V}, {queue, [Y], Out}}; -out({queue, In, [V]}) when is_list(In) -> - {{value,V}, r2f(In)}; -out({queue, In,[V|Out]}) when is_list(In) -> - {{value, V}, {queue, In, Out}}; -out({pqueue, [{P, Q} | Queues]}) -> - {R, Q1} = out(Q), - NewQ = case is_empty(Q1) of - true -> case Queues of - [] -> {queue, [], []}; - [{0, OnlyQ}] -> OnlyQ; - [_|_] -> {pqueue, Queues} - end; - false -> {pqueue, [{P, Q1} | Queues]} - end, - {R, NewQ}. - -join(A, {queue, [], []}) -> - A; -join({queue, [], []}, B) -> - B; -join({queue, AIn, AOut}, {queue, BIn, BOut}) -> - {queue, BIn, AOut ++ lists:reverse(AIn, BOut)}; -join(A = {queue, _, _}, {pqueue, BPQ}) -> - {Pre, Post} = - lists:splitwith(fun ({P, _}) -> P < 0 orelse P == infinity end, BPQ), - Post1 = case Post of - [] -> [ {0, A} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(A, ZeroQueue)} | Rest ]; - _ -> [ {0, A} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, B = {queue, _, _}) -> - {Pre, Post} = - lists:splitwith(fun ({P, _}) -> P < 0 orelse P == infinity end, APQ), - Post1 = case Post of - [] -> [ {0, B} ]; - [ {0, ZeroQueue} | Rest ] -> [ {0, join(ZeroQueue, B)} | Rest ]; - _ -> [ {0, B} | Post ] - end, - {pqueue, Pre ++ Post1}; -join({pqueue, APQ}, {pqueue, BPQ}) -> - {pqueue, merge(APQ, BPQ, [])}. - -merge([], BPQ, Acc) -> - lists:reverse(Acc, BPQ); -merge(APQ, [], Acc) -> - lists:reverse(Acc, APQ); -merge([{P, A}|As], [{P, B}|Bs], Acc) -> - merge(As, Bs, [ {P, join(A, B)} | Acc ]); -merge([{PA, A}|As], Bs = [{PB, _}|_], Acc) when PA < PB orelse PA == infinity -> - merge(As, Bs, [ {PA, A} | Acc ]); -merge(As = [{_, _}|_], [{PB, B}|Bs], Acc) -> - merge(As, Bs, [ {PB, B} | Acc ]). - -r2f([]) -> {queue, [], []}; -r2f([_] = R) -> {queue, [], R}; -r2f([X,Y]) -> {queue, [X], [Y]}; -r2f([X,Y|R]) -> {queue, [X,Y], lists:reverse(R, [])}. - -maybe_negate_priority(infinity) -> infinity; -maybe_negate_priority(P) -> -P. diff --git a/src/rabbit.erl b/src/rabbit.erl deleted file mode 100644 index 392bbb88..00000000 --- a/src/rabbit.erl +++ /dev/null @@ -1,603 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit). - --behaviour(application). - --export([prepare/0, start/0, stop/0, stop_and_halt/0, status/0, environment/0, - rotate_logs/1, force_event_refresh/0, ensure_process_groups/0]). - --export([start/2, stop/1]). - --export([log_location/1]). %% for testing - -%%--------------------------------------------------------------------------- -%% Boot steps. --export([maybe_insert_default_data/0, boot_delegate/0, recover/0]). - --rabbit_boot_step({pre_boot, [{description, "rabbit boot start"}]}). - --rabbit_boot_step({codec_correctness_check, - [{description, "codec correctness check"}, - {mfa, {rabbit_binary_generator, - check_empty_content_body_frame_size, - []}}, - {requires, pre_boot}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({database, - [{mfa, {rabbit_mnesia, init, []}}, - {requires, file_handle_cache}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({file_handle_cache, - [{description, "file handle cache server"}, - {mfa, {rabbit_sup, start_restartable_child, - [file_handle_cache]}}, - {requires, pre_boot}, - {enables, worker_pool}]}). - --rabbit_boot_step({worker_pool, - [{description, "worker pool"}, - {mfa, {rabbit_sup, start_child, [worker_pool_sup]}}, - {requires, pre_boot}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({ensure_process_groups, - [{description, "process groups"}, - {mfa, {rabbit, ensure_process_groups, []}}, - {requires, pre_boot}, - {enables, external_infrastructure}]}). - --rabbit_boot_step({external_infrastructure, - [{description, "external infrastructure ready"}]}). - --rabbit_boot_step({rabbit_registry, - [{description, "plugin registry"}, - {mfa, {rabbit_sup, start_child, - [rabbit_registry]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_log, - [{description, "logging server"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_log]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({rabbit_event, - [{description, "statistics event manager"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_event]}}, - {requires, external_infrastructure}, - {enables, kernel_ready}]}). - --rabbit_boot_step({kernel_ready, - [{description, "kernel ready"}, - {requires, external_infrastructure}]}). - --rabbit_boot_step({rabbit_alarm, - [{description, "alarm handler"}, - {mfa, {rabbit_alarm, start, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_memory_monitor, - [{description, "memory monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_memory_monitor]}}, - {requires, rabbit_alarm}, - {enables, core_initialized}]}). - --rabbit_boot_step({guid_generator, - [{description, "guid generator"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_guid]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({delegate_sup, - [{description, "cluster delegate"}, - {mfa, {rabbit, boot_delegate, []}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({rabbit_node_monitor, - [{description, "node monitor"}, - {mfa, {rabbit_sup, start_restartable_child, - [rabbit_node_monitor]}}, - {requires, kernel_ready}, - {enables, core_initialized}]}). - --rabbit_boot_step({core_initialized, - [{description, "core initialized"}, - {requires, kernel_ready}]}). - --rabbit_boot_step({empty_db_check, - [{description, "empty DB check"}, - {mfa, {?MODULE, maybe_insert_default_data, []}}, - {requires, core_initialized}, - {enables, routing_ready}]}). - --rabbit_boot_step({recovery, - [{description, "exchange, queue and binding recovery"}, - {mfa, {rabbit, recover, []}}, - {requires, empty_db_check}, - {enables, routing_ready}]}). - --rabbit_boot_step({mirror_queue_slave_sup, - [{description, "mirror queue slave sup"}, - {mfa, {rabbit_mirror_queue_slave_sup, start, []}}, - {requires, recovery}, - {enables, routing_ready}]}). - --rabbit_boot_step({mirrored_queues, - [{description, "adding mirrors to queues"}, - {mfa, {rabbit_mirror_queue_misc, on_node_up, []}}, - {requires, mirror_queue_slave_sup}, - {enables, routing_ready}]}). - --rabbit_boot_step({routing_ready, - [{description, "message delivery logic ready"}, - {requires, core_initialized}]}). - --rabbit_boot_step({log_relay, - [{description, "error log relay"}, - {mfa, {rabbit_error_logger, boot, []}}, - {requires, routing_ready}, - {enables, networking}]}). - --rabbit_boot_step({direct_client, - [{mfa, {rabbit_direct, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({networking, - [{mfa, {rabbit_networking, boot, []}}, - {requires, log_relay}]}). - --rabbit_boot_step({notify_cluster, - [{description, "notify cluster nodes"}, - {mfa, {rabbit_node_monitor, notify_cluster, []}}, - {requires, networking}]}). - -%%--------------------------------------------------------------------------- - --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --define(APPS, [os_mon, mnesia, rabbit]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(file_suffix() :: binary()). -%% this really should be an abstract type --type(log_location() :: 'tty' | 'undefined' | file:filename()). - --spec(prepare/0 :: () -> 'ok'). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(stop_and_halt/0 :: () -> 'ok'). --spec(rotate_logs/1 :: (file_suffix()) -> rabbit_types:ok_or_error(any())). --spec(force_event_refresh/0 :: () -> 'ok'). --spec(status/0 :: - () -> [{pid, integer()} | - {running_applications, [{atom(), string(), string()}]} | - {os, {atom(), atom()}} | - {erlang_version, string()} | - {memory, any()}]). --spec(environment/0 :: () -> [{atom() | term()}]). --spec(log_location/1 :: ('sasl' | 'kernel') -> log_location()). - --spec(maybe_insert_default_data/0 :: () -> 'ok'). --spec(boot_delegate/0 :: () -> 'ok'). --spec(recover/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -prepare() -> - ok = ensure_working_log_handlers(), - ok = rabbit_upgrade:maybe_upgrade_mnesia(). - -start() -> - try - ok = prepare(), - ok = rabbit_misc:start_applications(application_load_order()) - after - %%give the error loggers some time to catch up - timer:sleep(100) - end. - -stop() -> - ok = rabbit_misc:stop_applications(application_load_order()). - -stop_and_halt() -> - try - stop() - after - init:stop() - end, - ok. - -status() -> - [{pid, list_to_integer(os:getpid())}, - {running_applications, application:which_applications()}, - {os, os:type()}, - {erlang_version, erlang:system_info(system_version)}, - {memory, erlang:memory()}]. - -environment() -> - lists:keysort( - 1, [P || P = {K, _} <- application:get_all_env(rabbit), - K =/= default_pass]). - -rotate_logs(BinarySuffix) -> - Suffix = binary_to_list(BinarySuffix), - log_rotation_result(rotate_logs(log_location(kernel), - Suffix, - rabbit_error_logger_file_h), - rotate_logs(log_location(sasl), - Suffix, - rabbit_sasl_report_file_h)). - -%%-------------------------------------------------------------------- - -start(normal, []) -> - case erts_version_check() of - ok -> - ok = rabbit_mnesia:delete_previously_running_nodes(), - {ok, SupPid} = rabbit_sup:start_link(), - true = register(rabbit, self()), - - print_banner(), - [ok = run_boot_step(Step) || Step <- boot_steps()], - io:format("~nbroker running~n"), - {ok, SupPid}; - Error -> - Error - end. - -stop(_State) -> - ok = rabbit_mnesia:record_running_nodes(), - terminated_ok = error_logger:delete_report_handler(rabbit_error_logger), - ok = rabbit_alarm:stop(), - ok = case rabbit_mnesia:is_clustered() of - true -> rabbit_amqqueue:on_node_down(node()); - false -> rabbit_mnesia:empty_ram_only_tables() - end, - ok. - -%%--------------------------------------------------------------------------- -%% application life cycle - -application_load_order() -> - ok = load_applications(), - {ok, G} = rabbit_misc:build_acyclic_graph( - fun (App, _Deps) -> [{App, App}] end, - fun (App, Deps) -> [{Dep, App} || Dep <- Deps] end, - [{App, app_dependencies(App)} || - {App, _Desc, _Vsn} <- application:loaded_applications()]), - true = digraph:del_vertices( - G, digraph:vertices(G) -- digraph_utils:reachable(?APPS, G)), - Result = digraph_utils:topsort(G), - true = digraph:delete(G), - Result. - -load_applications() -> - load_applications(queue:from_list(?APPS), sets:new()). - -load_applications(Worklist, Loaded) -> - case queue:out(Worklist) of - {empty, _WorkList} -> - ok; - {{value, App}, Worklist1} -> - case sets:is_element(App, Loaded) of - true -> load_applications(Worklist1, Loaded); - false -> case application:load(App) of - ok -> ok; - {error, {already_loaded, App}} -> ok; - Error -> throw(Error) - end, - load_applications( - queue:join(Worklist1, - queue:from_list(app_dependencies(App))), - sets:add_element(App, Loaded)) - end - end. - -app_dependencies(App) -> - case application:get_key(App, applications) of - undefined -> []; - {ok, Lst} -> Lst - end. - -%%--------------------------------------------------------------------------- -%% boot step logic - -run_boot_step({StepName, Attributes}) -> - Description = case lists:keysearch(description, 1, Attributes) of - {value, {_, D}} -> D; - false -> StepName - end, - case [MFA || {mfa, MFA} <- Attributes] of - [] -> - io:format("-- ~s~n", [Description]); - MFAs -> - io:format("starting ~-60s ...", [Description]), - [try - apply(M,F,A) - catch - _:Reason -> boot_error("FAILED~nReason: ~p~nStacktrace: ~p~n", - [Reason, erlang:get_stacktrace()]) - end || {M,F,A} <- MFAs], - io:format("done~n"), - ok - end. - -boot_steps() -> - sort_boot_steps(rabbit_misc:all_module_attributes(rabbit_boot_step)). - -vertices(_Module, Steps) -> - [{StepName, {StepName, Atts}} || {StepName, Atts} <- Steps]. - -edges(_Module, Steps) -> - [case Key of - requires -> {StepName, OtherStep}; - enables -> {OtherStep, StepName} - end || {StepName, Atts} <- Steps, - {Key, OtherStep} <- Atts, - Key =:= requires orelse Key =:= enables]. - -sort_boot_steps(UnsortedSteps) -> - case rabbit_misc:build_acyclic_graph(fun vertices/2, fun edges/2, - UnsortedSteps) of - {ok, G} -> - %% Use topological sort to find a consistent ordering (if - %% there is one, otherwise fail). - SortedSteps = lists:reverse( - [begin - {StepName, Step} = digraph:vertex(G, StepName), - Step - end || StepName <- digraph_utils:topsort(G)]), - digraph:delete(G), - %% Check that all mentioned {M,F,A} triples are exported. - case [{StepName, {M,F,A}} || - {StepName, Attributes} <- SortedSteps, - {mfa, {M,F,A}} <- Attributes, - not erlang:function_exported(M, F, length(A))] of - [] -> SortedSteps; - MissingFunctions -> boot_error( - "Boot step functions not exported: ~p~n", - [MissingFunctions]) - end; - {error, {vertex, duplicate, StepName}} -> - boot_error("Duplicate boot step name: ~w~n", [StepName]); - {error, {edge, Reason, From, To}} -> - boot_error( - "Could not add boot step dependency of ~w on ~w:~n~s", - [To, From, - case Reason of - {bad_vertex, V} -> - io_lib:format("Boot step not registered: ~w~n", [V]); - {bad_edge, [First | Rest]} -> - [io_lib:format("Cyclic dependency: ~w", [First]), - [io_lib:format(" depends on ~w", [Next]) || - Next <- Rest], - io_lib:format(" depends on ~w~n", [First])] - end]) - end. - -boot_error(Format, Args) -> - io:format("BOOT ERROR: " ++ Format, Args), - error_logger:error_msg(Format, Args), - timer:sleep(1000), - exit({?MODULE, failure_during_boot}). - -%%--------------------------------------------------------------------------- -%% boot step functions - -boot_delegate() -> - {ok, Count} = application:get_env(rabbit, delegate_count), - rabbit_sup:start_child(delegate_sup, [Count]). - -recover() -> - rabbit_binding:recover(rabbit_exchange:recover(), rabbit_amqqueue:start()). - -maybe_insert_default_data() -> - case rabbit_mnesia:is_db_empty() of - true -> insert_default_data(); - false -> ok - end. - -insert_default_data() -> - {ok, DefaultUser} = application:get_env(default_user), - {ok, DefaultPass} = application:get_env(default_pass), - {ok, DefaultTags} = application:get_env(default_user_tags), - {ok, DefaultVHost} = application:get_env(default_vhost), - {ok, [DefaultConfigurePerm, DefaultWritePerm, DefaultReadPerm]} = - application:get_env(default_permissions), - ok = rabbit_vhost:add(DefaultVHost), - ok = rabbit_auth_backend_internal:add_user(DefaultUser, DefaultPass), - ok = rabbit_auth_backend_internal:set_tags(DefaultUser, DefaultTags), - ok = rabbit_auth_backend_internal:set_permissions(DefaultUser, DefaultVHost, - DefaultConfigurePerm, - DefaultWritePerm, - DefaultReadPerm), - ok. - -ensure_process_groups() -> - [ok = pg2_fixed:create(G) || G <- [rabbit_channels, - rabbit_network_connections, - rabbit_direct_connections]]. - -%%--------------------------------------------------------------------------- -%% logging - -ensure_working_log_handlers() -> - Handlers = gen_event:which_handlers(error_logger), - ok = ensure_working_log_handler(error_logger_file_h, - rabbit_error_logger_file_h, - error_logger_tty_h, - log_location(kernel), - Handlers), - - ok = ensure_working_log_handler(sasl_report_file_h, - rabbit_sasl_report_file_h, - sasl_report_tty_h, - log_location(sasl), - Handlers), - ok. - -ensure_working_log_handler(OldFHandler, NewFHandler, TTYHandler, - LogLocation, Handlers) -> - case LogLocation of - undefined -> ok; - tty -> case lists:member(TTYHandler, Handlers) of - true -> ok; - false -> - throw({error, {cannot_log_to_tty, - TTYHandler, not_installed}}) - end; - _ -> case lists:member(NewFHandler, Handlers) of - true -> ok; - false -> case rotate_logs(LogLocation, "", - OldFHandler, NewFHandler) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_log_to_file, - LogLocation, Reason}}) - end - end - end. - -log_location(Type) -> - case application:get_env(Type, case Type of - kernel -> error_logger; - sasl -> sasl_error_logger - end) of - {ok, {file, File}} -> File; - {ok, false} -> undefined; - {ok, tty} -> tty; - {ok, silent} -> undefined; - {ok, Bad} -> throw({error, {cannot_log_to_file, Bad}}); - _ -> undefined - end. - -rotate_logs(File, Suffix, Handler) -> - rotate_logs(File, Suffix, Handler, Handler). - -rotate_logs(File, Suffix, OldHandler, NewHandler) -> - case File of - undefined -> ok; - tty -> ok; - _ -> gen_event:swap_handler( - error_logger, - {OldHandler, swap}, - {NewHandler, {File, Suffix}}) - end. - -log_rotation_result({error, MainLogError}, {error, SaslLogError}) -> - {error, {{cannot_rotate_main_logs, MainLogError}, - {cannot_rotate_sasl_logs, SaslLogError}}}; -log_rotation_result({error, MainLogError}, ok) -> - {error, {cannot_rotate_main_logs, MainLogError}}; -log_rotation_result(ok, {error, SaslLogError}) -> - {error, {cannot_rotate_sasl_logs, SaslLogError}}; -log_rotation_result(ok, ok) -> - ok. - -force_event_refresh() -> - rabbit_networking:force_connection_event_refresh(), - rabbit_direct:force_event_refresh(), - rabbit_channel:force_event_refresh(), - rabbit_amqqueue:force_event_refresh(). - -%%--------------------------------------------------------------------------- -%% misc - -erts_version_check() -> - FoundVer = erlang:system_info(version), - case rabbit_misc:version_compare(?ERTS_MINIMUM, FoundVer, lte) of - true -> ok; - false -> {error, {erlang_version_too_old, - {found, FoundVer}, {required, ?ERTS_MINIMUM}}} - end. - -print_banner() -> - {ok, Product} = application:get_key(id), - {ok, Version} = application:get_key(vsn), - ProductLen = string:len(Product), - io:format("~n" - "+---+ +---+~n" - "| | | |~n" - "| | | |~n" - "| | | |~n" - "| +---+ +-------+~n" - "| |~n" - "| ~s +---+ |~n" - "| | | |~n" - "| ~s +---+ |~n" - "| |~n" - "+-------------------+~n" - "~s~n~s~n~s~n~n", - [Product, string:right([$v|Version], ProductLen), - ?PROTOCOL_VERSION, - ?COPYRIGHT_MESSAGE, ?INFORMATION_MESSAGE]), - Settings = [{"node", node()}, - {"app descriptor", app_location()}, - {"home dir", home_dir()}, - {"config file(s)", config_files()}, - {"cookie hash", rabbit_misc:cookie_hash()}, - {"log", log_location(kernel)}, - {"sasl log", log_location(sasl)}, - {"database dir", rabbit_mnesia:dir()}, - {"erlang version", erlang:system_info(version)}], - DescrLen = 1 + lists:max([length(K) || {K, _V} <- Settings]), - Format = fun (K, V) -> - io:format("~-" ++ integer_to_list(DescrLen) ++ "s: ~s~n", - [K, V]) - end, - lists:foreach(fun ({"config file(s)" = K, []}) -> - Format(K, "(none)"); - ({"config file(s)" = K, [V0 | Vs]}) -> - Format(K, V0), [Format("", V) || V <- Vs]; - ({K, V}) -> - Format(K, V) - end, Settings), - io:nl(). - -app_location() -> - {ok, Application} = application:get_application(), - filename:absname(code:where_is_file(atom_to_list(Application) ++ ".app")). - -home_dir() -> - case init:get_argument(home) of - {ok, [[Home]]} -> Home; - Other -> Other - end. - -config_files() -> - case init:get_argument(config) of - {ok, Files} -> [filename:absname( - filename:rootname(File, ".config") ++ ".config") || - File <- Files]; - error -> [] - end. diff --git a/src/rabbit_access_control.erl b/src/rabbit_access_control.erl deleted file mode 100644 index c0ae18c0..00000000 --- a/src/rabbit_access_control.erl +++ /dev/null @@ -1,103 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_access_control). - --include("rabbit.hrl"). - --export([check_user_pass_login/2, check_user_login/2, - check_vhost_access/2, check_resource_access/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([permission_atom/0]). - --type(permission_atom() :: 'configure' | 'read' | 'write'). - --spec(check_user_pass_login/2 :: - (rabbit_types:username(), rabbit_types:password()) - -> {'ok', rabbit_types:user()} | {'refused', string(), [any()]}). --spec(check_vhost_access/2 :: - (rabbit_types:user(), rabbit_types:vhost()) - -> 'ok' | rabbit_types:channel_exit()). --spec(check_resource_access/3 :: - (rabbit_types:user(), rabbit_types:r(atom()), permission_atom()) - -> 'ok' | rabbit_types:channel_exit()). - --endif. - -%%---------------------------------------------------------------------------- - -check_user_pass_login(Username, Password) -> - check_user_login(Username, [{password, Password}]). - -check_user_login(Username, AuthProps) -> - {ok, Modules} = application:get_env(rabbit, auth_backends), - lists:foldl( - fun(Module, {refused, _, _}) -> - case Module:check_user_login(Username, AuthProps) of - {error, E} -> - {refused, "~s failed authenticating ~s: ~p~n", - [Module, Username, E]}; - Else -> - Else - end; - (_, {ok, User}) -> - {ok, User} - end, {refused, "No modules checked '~s'", [Username]}, Modules). - -check_vhost_access(User = #user{ username = Username, - auth_backend = Module }, VHostPath) -> - ?LOGDEBUG("Checking VHost access for ~p to ~p~n", [Username, VHostPath]), - check_access( - fun() -> - rabbit_vhost:exists(VHostPath) andalso - Module:check_vhost_access(User, VHostPath) - end, - "~s failed checking vhost access to ~s for ~s: ~p~n", - [Module, VHostPath, Username], - "access to vhost '~s' refused for user '~s'", - [VHostPath, Username]). - -check_resource_access(User, R = #resource{kind = exchange, name = <<"">>}, - Permission) -> - check_resource_access(User, R#resource{name = <<"amq.default">>}, - Permission); -check_resource_access(User = #user{username = Username, auth_backend = Module}, - Resource, Permission) -> - check_access( - fun() -> Module:check_resource_access(User, Resource, Permission) end, - "~s failed checking resource access to ~p for ~s: ~p~n", - [Module, Resource, Username], - "access to ~s refused for user '~s'", - [rabbit_misc:rs(Resource), Username]). - -check_access(Fun, ErrStr, ErrArgs, RefStr, RefArgs) -> - Allow = case Fun() of - {error, _} = E -> - rabbit_log:error(ErrStr, ErrArgs ++ [E]), - false; - Else -> - Else - end, - case Allow of - true -> - ok; - false -> - rabbit_misc:protocol_error(access_refused, RefStr, RefArgs) - end. diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl deleted file mode 100644 index d38ecb91..00000000 --- a/src/rabbit_alarm.erl +++ /dev/null @@ -1,166 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_alarm). - --behaviour(gen_event). - --export([start/0, stop/0, register/2, on_node_up/1, on_node_down/1]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - --export([remote_conserve_memory/2]). %% Internal use only - --record(alarms, {alertees, alarmed_nodes}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(mfa_tuple() :: {atom(), atom(), list()}). --spec(start/0 :: () -> 'ok'). --spec(stop/0 :: () -> 'ok'). --spec(register/2 :: (pid(), mfa_tuple()) -> boolean()). --spec(on_node_up/1 :: (node()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - ok = alarm_handler:add_alarm_handler(?MODULE, []), - {ok, MemoryWatermark} = application:get_env(vm_memory_high_watermark), - ok = case MemoryWatermark == 0 of - true -> ok; - false -> rabbit_sup:start_restartable_child(vm_memory_monitor, - [MemoryWatermark]) - end, - ok. - -stop() -> - ok = alarm_handler:delete_alarm_handler(?MODULE). - -register(Pid, HighMemMFA) -> - gen_event:call(alarm_handler, ?MODULE, - {register, Pid, HighMemMFA}, - infinity). - -on_node_up(Node) -> gen_event:notify(alarm_handler, {node_up, Node}). - -on_node_down(Node) -> gen_event:notify(alarm_handler, {node_down, Node}). - -%% Can't use alarm_handler:{set,clear}_alarm because that doesn't -%% permit notifying a remote node. -remote_conserve_memory(Pid, true) -> - gen_event:notify({alarm_handler, node(Pid)}, - {set_alarm, {{vm_memory_high_watermark, node()}, []}}); -remote_conserve_memory(Pid, false) -> - gen_event:notify({alarm_handler, node(Pid)}, - {clear_alarm, {vm_memory_high_watermark, node()}}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #alarms{alertees = dict:new(), - alarmed_nodes = sets:new()}}. - -handle_call({register, Pid, HighMemMFA}, State) -> - {ok, 0 < sets:size(State#alarms.alarmed_nodes), - internal_register(Pid, HighMemMFA, State)}; - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({set_alarm, {{vm_memory_high_watermark, Node}, []}}, State) -> - {ok, maybe_alert(fun sets:add_element/2, Node, State)}; - -handle_event({clear_alarm, {vm_memory_high_watermark, Node}}, State) -> - {ok, maybe_alert(fun sets:del_element/2, Node, State)}; - -handle_event({node_up, Node}, State) -> - %% Must do this via notify and not call to avoid possible deadlock. - ok = gen_event:notify( - {alarm_handler, Node}, - {register, self(), {?MODULE, remote_conserve_memory, []}}), - {ok, State}; - -handle_event({node_down, Node}, State) -> - {ok, maybe_alert(fun sets:del_element/2, Node, State)}; - -handle_event({register, Pid, HighMemMFA}, State) -> - {ok, internal_register(Pid, HighMemMFA, State)}; - -handle_event(_Event, State) -> - {ok, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, - State = #alarms{alertees = Alertees}) -> - {ok, State#alarms{alertees = dict:erase(Pid, Alertees)}}; - -handle_info(_Info, State) -> - {ok, State}. - -terminate(_Arg, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -maybe_alert(SetFun, Node, State = #alarms{alarmed_nodes = AN, - alertees = Alertees}) -> - AN1 = SetFun(Node, AN), - BeforeSz = sets:size(AN), - AfterSz = sets:size(AN1), - %% If we have changed our alarm state, inform the remotes. - IsLocal = Node =:= node(), - if IsLocal andalso BeforeSz < AfterSz -> ok = alert_remote(true, Alertees); - IsLocal andalso BeforeSz > AfterSz -> ok = alert_remote(false, Alertees); - true -> ok - end, - %% If the overall alarm state has changed, inform the locals. - case {BeforeSz, AfterSz} of - {0, 1} -> ok = alert_local(true, Alertees); - {1, 0} -> ok = alert_local(false, Alertees); - {_, _} -> ok - end, - State#alarms{alarmed_nodes = AN1}. - -alert_local(Alert, Alertees) -> alert(Alert, Alertees, fun erlang:'=:='/2). - -alert_remote(Alert, Alertees) -> alert(Alert, Alertees, fun erlang:'=/='/2). - -alert(Alert, Alertees, NodeComparator) -> - Node = node(), - dict:fold(fun (Pid, {M, F, A}, ok) -> - case NodeComparator(Node, node(Pid)) of - true -> apply(M, F, A ++ [Pid, Alert]); - false -> ok - end - end, ok, Alertees). - -internal_register(Pid, {M, F, A} = HighMemMFA, - State = #alarms{alertees = Alertees}) -> - _MRef = erlang:monitor(process, Pid), - case sets:is_element(node(), State#alarms.alarmed_nodes) of - true -> ok = apply(M, F, A ++ [Pid, true]); - false -> ok - end, - NewAlertees = dict:store(Pid, HighMemMFA, Alertees), - State#alarms{alertees = NewAlertees}. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl deleted file mode 100644 index c5e2f908..00000000 --- a/src/rabbit_amqqueue.erl +++ /dev/null @@ -1,553 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue). - --export([start/0, stop/0, declare/5, delete_immediately/1, delete/3, purge/1]). --export([pseudo_queue/2]). --export([lookup/1, with/2, with_or_die/2, assert_equivalence/5, - check_exclusive_access/2, with_exclusive_access_or_die/3, - stat/1, deliver/2, requeue/3, ack/3, reject/4]). --export([list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). --export([force_event_refresh/0]). --export([consumers/1, consumers_all/1, consumer_info_keys/0]). --export([basic_get/3, basic_consume/7, basic_cancel/4]). --export([notify_sent/2, unblock/2, flush_all/2]). --export([notify_down_all/2, limit_all/3]). --export([on_node_down/1]). --export([store_queue/1]). - - -%% internal --export([internal_declare/2, internal_delete/1, run_backing_queue/3, - sync_timeout/1, update_ram_duration/1, set_ram_duration_target/2, - set_maximum_since_use/2, maybe_expire/1, drop_expired/1, - emit_stats/1]). - --include("rabbit.hrl"). --include_lib("stdlib/include/qlc.hrl"). - --define(INTEGER_ARG_TYPES, [byte, short, signedint, long]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, qmsg/0]). - --type(name() :: rabbit_types:r('queue')). - --type(qlen() :: rabbit_types:ok(non_neg_integer())). --type(qfun(A) :: fun ((rabbit_types:amqqueue()) -> A)). --type(qmsg() :: {name(), pid(), msg_id(), boolean(), rabbit_types:message()}). --type(msg_id() :: non_neg_integer()). --type(ok_or_errors() :: - 'ok' | {'error', [{'error' | 'exit' | 'throw', any()}]}). - --type(queue_or_not_found() :: rabbit_types:amqqueue() | 'not_found'). - --spec(start/0 :: () -> [name()]). --spec(stop/0 :: () -> 'ok'). --spec(declare/5 :: - (name(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> {'new' | 'existing', rabbit_types:amqqueue()} | - rabbit_types:channel_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:amqqueue()) | - rabbit_types:error('not_found')). --spec(with/2 :: (name(), qfun(A)) -> A | rabbit_types:error('not_found')). --spec(with_or_die/2 :: - (name(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(assert_equivalence/5 :: - (rabbit_types:amqqueue(), boolean(), boolean(), - rabbit_framing:amqp_table(), rabbit_types:maybe(pid())) - -> 'ok' | rabbit_types:channel_exit() | - rabbit_types:connection_exit()). --spec(check_exclusive_access/2 :: - (rabbit_types:amqqueue(), pid()) - -> 'ok' | rabbit_types:channel_exit()). --spec(with_exclusive_access_or_die/3 :: - (name(), pid(), qfun(A)) -> A | rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:amqqueue()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:amqqueue()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:amqqueue(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 :: (rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(force_event_refresh/0 :: () -> 'ok'). --spec(consumers/1 :: - (rabbit_types:amqqueue()) - -> [{pid(), rabbit_types:ctag(), boolean()}]). --spec(consumer_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(consumers_all/1 :: - (rabbit_types:vhost()) - -> [{name(), pid(), rabbit_types:ctag(), boolean()}]). --spec(stat/1 :: - (rabbit_types:amqqueue()) - -> {'ok', non_neg_integer(), non_neg_integer()}). --spec(emit_stats/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete_immediately/1 :: (rabbit_types:amqqueue()) -> 'ok'). --spec(delete/3 :: - (rabbit_types:amqqueue(), 'false', 'false') - -> qlen(); - (rabbit_types:amqqueue(), 'true' , 'false') - -> qlen() | rabbit_types:error('in_use'); - (rabbit_types:amqqueue(), 'false', 'true' ) - -> qlen() | rabbit_types:error('not_empty'); - (rabbit_types:amqqueue(), 'true' , 'true' ) - -> qlen() | - rabbit_types:error('in_use') | - rabbit_types:error('not_empty')). --spec(purge/1 :: (rabbit_types:amqqueue()) -> qlen()). --spec(deliver/2 :: (pid(), rabbit_types:delivery()) -> boolean()). --spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). --spec(ack/3 :: (pid(), [msg_id()], pid()) -> 'ok'). --spec(reject/4 :: (pid(), [msg_id()], boolean(), pid()) -> 'ok'). --spec(notify_down_all/2 :: ([pid()], pid()) -> ok_or_errors()). --spec(limit_all/3 :: ([pid()], pid(), pid() | 'undefined') -> ok_or_errors()). --spec(basic_get/3 :: (rabbit_types:amqqueue(), pid(), boolean()) -> - {'ok', non_neg_integer(), qmsg()} | 'empty'). --spec(basic_consume/7 :: - (rabbit_types:amqqueue(), boolean(), pid(), pid() | 'undefined', - rabbit_types:ctag(), boolean(), any()) - -> rabbit_types:ok_or_error('exclusive_consume_unavailable')). --spec(basic_cancel/4 :: - (rabbit_types:amqqueue(), pid(), rabbit_types:ctag(), any()) -> 'ok'). --spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). --spec(unblock/2 :: (pid(), pid()) -> 'ok'). --spec(flush_all/2 :: ([pid()], pid()) -> 'ok'). --spec(internal_declare/2 :: - (rabbit_types:amqqueue(), boolean()) - -> queue_or_not_found() | rabbit_misc:thunk(queue_or_not_found())). --spec(internal_delete/1 :: - (name()) -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit() | - fun (() -> rabbit_types:ok_or_error('not_found') | - rabbit_types:connection_exit())). --spec(run_backing_queue/3 :: - (pid(), atom(), - (fun ((atom(), A) -> {[rabbit_types:msg_id()], A}))) -> 'ok'). --spec(sync_timeout/1 :: (pid()) -> 'ok'). --spec(update_ram_duration/1 :: (pid()) -> 'ok'). --spec(set_ram_duration_target/2 :: (pid(), number() | 'infinity') -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). --spec(maybe_expire/1 :: (pid()) -> 'ok'). --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(pseudo_queue/2 :: (name(), pid()) -> rabbit_types:amqqueue()). - --endif. - -%%---------------------------------------------------------------------------- - --define(CONSUMER_INFO_KEYS, - [queue_name, channel_pid, consumer_tag, ack_required]). - -start() -> - DurableQueues = find_durable_queues(), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:start([QName || #amqqueue{name = QName} <- DurableQueues]), - {ok,_} = supervisor:start_child( - rabbit_sup, - {rabbit_amqqueue_sup, - {rabbit_amqqueue_sup, start_link, []}, - transient, infinity, supervisor, [rabbit_amqqueue_sup]}), - recover_durable_queues(DurableQueues). - -stop() -> - ok = supervisor:terminate_child(rabbit_sup, rabbit_amqqueue_sup), - ok = supervisor:delete_child(rabbit_sup, rabbit_amqqueue_sup), - {ok, BQ} = application:get_env(rabbit, backing_queue_module), - ok = BQ:stop(). - -find_durable_queues() -> - Node = node(), - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - qlc:e(qlc:q([Q || Q = #amqqueue{pid = Pid} - <- mnesia:table(rabbit_durable_queue), - node(Pid) == Node])) - end). - -recover_durable_queues(DurableQueues) -> - Qs = [start_queue_process(node(), Q) || Q <- DurableQueues], - [QName || Q = #amqqueue{name = QName, pid = Pid} <- Qs, - gen_server2:call(Pid, {init, true}, infinity) == {new, Q}]. - -declare(QueueName, Durable, AutoDelete, Args, Owner) -> - ok = check_declare_arguments(QueueName, Args), - {Node, MNodes} = determine_queue_nodes(Args), - Q = start_queue_process(Node, #amqqueue{name = QueueName, - durable = Durable, - auto_delete = AutoDelete, - arguments = Args, - exclusive_owner = Owner, - pid = none, - slave_pids = [], - mirror_nodes = MNodes}), - case gen_server2:call(Q#amqqueue.pid, {init, false}, infinity) of - not_found -> rabbit_misc:not_found(QueueName); - Q1 -> Q1 - end. - -internal_declare(Q, true) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> ok = store_queue(Q), rabbit_misc:const(Q) end); -internal_declare(Q = #amqqueue{name = QueueName}, false) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> - case mnesia:read({rabbit_durable_queue, QueueName}) of - [] -> ok = store_queue(Q), - B = add_default_binding(Q), - fun () -> B(), Q end; - %% Q exists on stopped node - [_] -> rabbit_misc:const(not_found) - end; - [ExistingQ = #amqqueue{pid = QPid}] -> - case rabbit_misc:is_process_alive(QPid) of - true -> rabbit_misc:const(ExistingQ); - false -> TailFun = internal_delete(QueueName), - fun () -> TailFun(), ExistingQ end - end - end - end). - -store_queue(Q = #amqqueue{durable = true}) -> - ok = mnesia:write(rabbit_durable_queue, Q, write), - ok = mnesia:write(rabbit_queue, Q, write), - ok; -store_queue(Q = #amqqueue{durable = false}) -> - ok = mnesia:write(rabbit_queue, Q, write), - ok. - -determine_queue_nodes(Args) -> - Policy = rabbit_misc:table_lookup(Args, <<"x-ha-policy">>), - PolicyParams = rabbit_misc:table_lookup(Args, <<"x-ha-policy-params">>), - case {Policy, PolicyParams} of - {{_Type, <<"nodes">>}, {array, Nodes}} -> - case [list_to_atom(binary_to_list(Node)) || - {longstr, Node} <- Nodes] of - [Node] -> {Node, undefined}; - [First | Rest] -> {First, Rest} - end; - {{_Type, <<"all">>}, _} -> - {node(), all}; - _ -> - {node(), undefined} - end. - -start_queue_process(Node, Q) -> - {ok, Pid} = rabbit_amqqueue_sup:start_child(Node, [Q]), - Q#amqqueue{pid = Pid}. - -add_default_binding(#amqqueue{name = QueueName}) -> - ExchangeName = rabbit_misc:r(QueueName, exchange, <<>>), - RoutingKey = QueueName#resource.name, - rabbit_binding:add(#binding{source = ExchangeName, - destination = QueueName, - key = RoutingKey, - args = []}). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_queue, Name}). - -with(Name, F, E) -> - case lookup(Name) of - {ok, Q = #amqqueue{slave_pids = []}} -> - rabbit_misc:with_exit_handler(E, fun () -> F(Q) end); - {ok, Q} -> - E1 = fun () -> timer:sleep(25), with(Name, F, E) end, - rabbit_misc:with_exit_handler(E1, fun () -> F(Q) end); - {error, not_found} -> - E() - end. - -with(Name, F) -> - with(Name, F, fun () -> {error, not_found} end). -with_or_die(Name, F) -> - with(Name, F, fun () -> rabbit_misc:not_found(Name) end). - -assert_equivalence(#amqqueue{durable = Durable, - auto_delete = AutoDelete} = Q, - Durable, AutoDelete, RequiredArgs, Owner) -> - assert_args_equivalence(Q, RequiredArgs), - check_exclusive_access(Q, Owner, strict); -assert_equivalence(#amqqueue{name = QueueName}, - _Durable, _AutoDelete, _RequiredArgs, _Owner) -> - rabbit_misc:protocol_error( - precondition_failed, "parameters for ~s not equivalent", - [rabbit_misc:rs(QueueName)]). - -check_exclusive_access(Q, Owner) -> check_exclusive_access(Q, Owner, lax). - -check_exclusive_access(#amqqueue{exclusive_owner = Owner}, Owner, _MatchType) -> - ok; -check_exclusive_access(#amqqueue{exclusive_owner = none}, _ReaderPid, lax) -> - ok; -check_exclusive_access(#amqqueue{name = QueueName}, _ReaderPid, _MatchType) -> - rabbit_misc:protocol_error( - resource_locked, - "cannot obtain exclusive access to locked ~s", - [rabbit_misc:rs(QueueName)]). - -with_exclusive_access_or_die(Name, ReaderPid, F) -> - with_or_die(Name, - fun (Q) -> check_exclusive_access(Q, ReaderPid), F(Q) end). - -assert_args_equivalence(#amqqueue{name = QueueName, arguments = Args}, - RequiredArgs) -> - rabbit_misc:assert_args_equivalence( - Args, RequiredArgs, QueueName, - [<<"x-expires">>, <<"x-message-ttl">>, <<"x-ha-policy">>]). - -check_declare_arguments(QueueName, Args) -> - [case Fun(rabbit_misc:table_lookup(Args, Key), Args) of - ok -> ok; - {error, Error} -> rabbit_misc:protocol_error( - precondition_failed, - "invalid arg '~s' for ~s: ~w", - [Key, rabbit_misc:rs(QueueName), Error]) - end || {Key, Fun} <- - [{<<"x-expires">>, fun check_integer_argument/2}, - {<<"x-message-ttl">>, fun check_integer_argument/2}, - {<<"x-ha-policy">>, fun check_ha_policy_argument/2}]], - ok. - -check_integer_argument(undefined, _Args) -> - ok; -check_integer_argument({Type, Val}, _Args) when Val > 0 -> - case lists:member(Type, ?INTEGER_ARG_TYPES) of - true -> ok; - false -> {error, {unacceptable_type, Type}} - end; -check_integer_argument({_Type, Val}, _Args) -> - {error, {value_zero_or_less, Val}}. - -check_ha_policy_argument(undefined, _Args) -> - ok; -check_ha_policy_argument({longstr, <<"all">>}, _Args) -> - ok; -check_ha_policy_argument({longstr, <<"nodes">>}, Args) -> - case rabbit_misc:table_lookup(Args, <<"x-ha-policy-params">>) of - undefined -> - {error, {require, 'x-ha-policy-params'}}; - {array, []} -> - {error, {require_non_empty_list_of_nodes_for_ha}}; - {array, Ary} -> - case lists:all(fun ({longstr, _Node}) -> true; - (_ ) -> false - end, Ary) of - true -> ok; - false -> {error, {require_node_list_as_longstrs_for_ha, Ary}} - end; - {Type, _} -> - {error, {ha_nodes_policy_params_not_array_of_longstr, Type}} - end; -check_ha_policy_argument({longstr, Policy}, _Args) -> - {error, {invalid_ha_policy, Policy}}; -check_ha_policy_argument({Type, _}, _Args) -> - {error, {unacceptable_type, Type}}. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_queue, - #amqqueue{name = rabbit_misc:r(VHostPath, queue), _ = '_'}). - -info_keys() -> rabbit_amqqueue_process:info_keys(). - -map(VHostPath, F) -> rabbit_misc:filter_exit_map(F, list(VHostPath)). - -info(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, info). - -info(#amqqueue{ pid = QPid }, Items) -> - case delegate_call(QPid, {info, Items}) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). - -force_event_refresh() -> - [map(VHost, fun(Q) -> delegate_cast(Q#amqqueue.pid, - force_event_refresh) end) || - VHost <- rabbit_vhost:list()]. - -consumers(#amqqueue{ pid = QPid }) -> - delegate_call(QPid, consumers). - -consumer_info_keys() -> ?CONSUMER_INFO_KEYS. - -consumers_all(VHostPath) -> - ConsumerInfoKeys=consumer_info_keys(), - lists:append( - map(VHostPath, - fun (Q) -> - [lists:zip(ConsumerInfoKeys, - [Q#amqqueue.name, ChPid, ConsumerTag, AckRequired]) || - {ChPid, ConsumerTag, AckRequired} <- consumers(Q)] - end)). - -stat(#amqqueue{pid = QPid}) -> - delegate_call(QPid, stat). - -emit_stats(#amqqueue{pid = QPid}) -> - delegate_cast(QPid, emit_stats). - -delete_immediately(#amqqueue{ pid = QPid }) -> - gen_server2:cast(QPid, delete_immediately). - -delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> - delegate_call(QPid, {delete, IfUnused, IfEmpty}). - -purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge). - -deliver(QPid, Delivery = #delivery{immediate = true}) -> - gen_server2:call(QPid, {deliver_immediately, Delivery}, infinity); -deliver(QPid, Delivery = #delivery{mandatory = true}) -> - gen_server2:call(QPid, {deliver, Delivery}, infinity), - true; -deliver(QPid, Delivery) -> - gen_server2:cast(QPid, {deliver, Delivery}), - true. - -requeue(QPid, MsgIds, ChPid) -> - delegate_call(QPid, {requeue, MsgIds, ChPid}). - -ack(QPid, MsgIds, ChPid) -> - delegate_cast(QPid, {ack, MsgIds, ChPid}). - -reject(QPid, MsgIds, Requeue, ChPid) -> - delegate_cast(QPid, {reject, MsgIds, Requeue, ChPid}). - -notify_down_all(QPids, ChPid) -> - safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, infinity) end, - QPids). - -limit_all(QPids, ChPid, LimiterPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> - gen_server2:cast(QPid, {limit, ChPid, LimiterPid}) - end). - -basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> - delegate_call(QPid, {basic_get, ChPid, NoAck}). - -basic_consume(#amqqueue{pid = QPid}, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg) -> - delegate_call(QPid, {basic_consume, NoAck, ChPid, - LimiterPid, ConsumerTag, ExclusiveConsume, OkMsg}). - -basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> - ok = delegate_call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}). - -notify_sent(QPid, ChPid) -> - gen_server2:cast(QPid, {notify_sent, ChPid}). - -unblock(QPid, ChPid) -> - delegate_cast(QPid, {unblock, ChPid}). - -flush_all(QPids, ChPid) -> - delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). - -internal_delete1(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - ok = mnesia:delete({rabbit_durable_queue, QueueName}), - %% we want to execute some things, as decided by rabbit_exchange, - %% after the transaction. - rabbit_binding:remove_for_destination(QueueName). - -internal_delete(QueueName) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case mnesia:wread({rabbit_queue, QueueName}) of - [] -> rabbit_misc:const({error, not_found}); - [_] -> Deletions = internal_delete1(QueueName), - rabbit_binding:process_deletions(Deletions) - end - end). - -run_backing_queue(QPid, Mod, Fun) -> - gen_server2:cast(QPid, {run_backing_queue, Mod, Fun}). - -sync_timeout(QPid) -> - gen_server2:cast(QPid, sync_timeout). - -update_ram_duration(QPid) -> - gen_server2:cast(QPid, update_ram_duration). - -set_ram_duration_target(QPid, Duration) -> - gen_server2:cast(QPid, {set_ram_duration_target, Duration}). - -set_maximum_since_use(QPid, Age) -> - gen_server2:cast(QPid, {set_maximum_since_use, Age}). - -maybe_expire(QPid) -> - gen_server2:cast(QPid, maybe_expire). - -drop_expired(QPid) -> - gen_server2:cast(QPid, drop_expired). - -on_node_down(Node) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> Dels = qlc:e(qlc:q([delete_queue(QueueName) || - #amqqueue{name = QueueName, pid = Pid, - slave_pids = []} - <- mnesia:table(rabbit_queue), - node(Pid) == Node])), - rabbit_binding:process_deletions( - lists:foldl(fun rabbit_binding:combine_deletions/2, - rabbit_binding:new_deletions(), Dels)) - end). - -delete_queue(QueueName) -> - ok = mnesia:delete({rabbit_queue, QueueName}), - rabbit_binding:remove_transient_for_destination(QueueName). - -pseudo_queue(QueueName, Pid) -> - #amqqueue{name = QueueName, - durable = false, - auto_delete = false, - arguments = [], - pid = Pid, - slave_pids = [], - mirror_nodes = undefined}. - -safe_delegate_call_ok(F, Pids) -> - case delegate:invoke(Pids, fun (Pid) -> - rabbit_misc:with_exit_handler( - fun () -> ok end, - fun () -> F(Pid) end) - end) of - {_, []} -> ok; - {_, Bad} -> {error, Bad} - end. - -delegate_call(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> gen_server2:call(P, Msg, infinity) end). - -delegate_cast(Pid, Msg) -> - delegate:invoke_no_result(Pid, fun (P) -> gen_server2:cast(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl deleted file mode 100644 index c7e36283..00000000 --- a/src/rabbit_amqqueue_process.erl +++ /dev/null @@ -1,1185 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_process). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(gen_server2). - --define(UNSENT_MESSAGE_LIMIT, 100). --define(SYNC_INTERVAL, 25). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). - --define(BASE_MESSAGE_PROPERTIES, - #message_properties{expiry = undefined, needs_confirming = false}). - --export([start_link/1, info_keys/0]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2, format_message_queue/2]). - --export([init_with_backing_queue_state/7]). - -%% Queue's state --record(q, {q, - exclusive_consumer, - has_had_consumers, - backing_queue, - backing_queue_state, - active_consumers, - blocked_consumers, - expires, - sync_timer_ref, - rate_timer_ref, - expiry_timer_ref, - stats_timer, - msg_id_to_channel, - ttl, - ttl_timer_ref - }). - --record(consumer, {tag, ack_required}). - -%% These are held in our process dictionary --record(cr, {consumer_count, - ch_pid, - limiter_pid, - monitor_ref, - acktags, - is_limit_active, - unsent_message_count}). - --define(STATISTICS_KEYS, - [pid, - exclusive_consumer_pid, - exclusive_consumer_tag, - messages_ready, - messages_unacknowledged, - messages, - consumers, - memory, - backing_queue_status, - slave_pids - ]). - --define(CREATION_EVENT_KEYS, - [pid, - name, - durable, - auto_delete, - arguments, - owner_pid, - mirror_nodes - ]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - -start_link(Q) -> gen_server2:start_link(?MODULE, Q, []). - -info_keys() -> ?INFO_KEYS. - -%%---------------------------------------------------------------------------- - -init(Q) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - process_flag(trap_exit, true), - - {ok, #q{q = Q#amqqueue{pid = self()}, - exclusive_consumer = none, - has_had_consumers = false, - backing_queue = backing_queue_module(Q), - backing_queue_state = undefined, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - expires = undefined, - sync_timer_ref = undefined, - rate_timer_ref = undefined, - expiry_timer_ref = undefined, - ttl = undefined, - stats_timer = rabbit_event:init_stats_timer(), - msg_id_to_channel = dict:new()}, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -init_with_backing_queue_state(Q = #amqqueue{exclusive_owner = Owner}, BQ, BQS, - RateTRef, AckTags, Deliveries, MTC) -> - ?LOGDEBUG("Queue starting - ~p~n", [Q]), - case Owner of - none -> ok; - _ -> erlang:monitor(process, Owner) - end, - State = requeue_and_run( - AckTags, - process_args( - #q{q = Q, - exclusive_consumer = none, - has_had_consumers = false, - backing_queue = BQ, - backing_queue_state = BQS, - active_consumers = queue:new(), - blocked_consumers = queue:new(), - expires = undefined, - sync_timer_ref = undefined, - rate_timer_ref = RateTRef, - expiry_timer_ref = undefined, - ttl = undefined, - stats_timer = rabbit_event:init_stats_timer(), - msg_id_to_channel = MTC})), - lists:foldl( - fun (Delivery, StateN) -> deliver_or_enqueue(Delivery, StateN) end, - State, Deliveries). - -terminate(shutdown = R, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(R, BQS) end, State); -terminate({shutdown, _} = R, State = #q{backing_queue = BQ}) -> - terminate_shutdown(fun (BQS) -> BQ:terminate(R, BQS) end, State); -terminate(Reason, State = #q{backing_queue = BQ}) -> - %% FIXME: How do we cancel active subscriptions? - terminate_shutdown(fun (BQS) -> - rabbit_event:notify( - queue_deleted, [{pid, self()}]), - BQS1 = BQ:delete_and_terminate(Reason, BQS), - %% don't care if the internal delete - %% doesn't return 'ok'. - rabbit_amqqueue:internal_delete(qname(State)), - BQS1 - end, State). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- - -declare(Recover, From, - State = #q{q = Q, backing_queue = BQ, backing_queue_state = undefined, - stats_timer = StatsTimer}) -> - case rabbit_amqqueue:internal_declare(Q, Recover) of - not_found -> {stop, normal, not_found, State}; - Q -> gen_server2:reply(From, {new, Q}), - ok = file_handle_cache:register_callback( - rabbit_amqqueue, set_maximum_since_use, - [self()]), - ok = rabbit_memory_monitor:register( - self(), {rabbit_amqqueue, - set_ram_duration_target, [self()]}), - BQS = bq_init(BQ, Q, Recover), - State1 = process_args(State#q{backing_queue_state = BQS}), - rabbit_event:notify(queue_created, - infos(?CREATION_EVENT_KEYS, State1)), - rabbit_event:if_enabled(StatsTimer, - fun() -> emit_stats(State1) end), - noreply(State1); - Q1 -> {stop, normal, {existing, Q1}, State} - end. - -bq_init(BQ, Q, Recover) -> - Self = self(), - BQ:init(Q, Recover, - fun (Mod, Fun) -> - rabbit_amqqueue:run_backing_queue(Self, Mod, Fun) - end). - -process_args(State = #q{q = #amqqueue{arguments = Arguments}}) -> - lists:foldl(fun({Arg, Fun}, State1) -> - case rabbit_misc:table_lookup(Arguments, Arg) of - {_Type, Val} -> Fun(Val, State1); - undefined -> State1 - end - end, State, [{<<"x-expires">>, fun init_expires/2}, - {<<"x-message-ttl">>, fun init_ttl/2}]). - -init_expires(Expires, State) -> ensure_expiry_timer(State#q{expires = Expires}). - -init_ttl(TTL, State) -> drop_expired_messages(State#q{ttl = TTL}). - -terminate_shutdown(Fun, State) -> - State1 = #q{backing_queue_state = BQS} = - stop_sync_timer(stop_rate_timer(State)), - case BQS of - undefined -> State1; - _ -> ok = rabbit_memory_monitor:deregister(self()), - [emit_consumer_deleted(Ch, CTag) - || {Ch, CTag, _} <- consumers(State1)], - State1#q{backing_queue_state = Fun(BQS)} - end. - -reply(Reply, NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {reply, Reply, NewState1, Timeout}. - -noreply(NewState) -> - assert_invariant(NewState), - {NewState1, Timeout} = next_state(NewState), - {noreply, NewState1, Timeout}. - -next_state(State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - {MsgIds, BQS1} = BQ:drain_confirmed(BQS), - State1 = ensure_stats_timer( - ensure_rate_timer( - confirm_messages(MsgIds, State#q{ - backing_queue_state = BQS1}))), - case BQ:needs_timeout(BQS1) of - false -> {stop_sync_timer(State1), hibernate}; - idle -> {stop_sync_timer(State1), 0 }; - timed -> {ensure_sync_timer(State1), 0 } - end. - -backing_queue_module(#amqqueue{arguments = Args}) -> - case rabbit_misc:table_lookup(Args, <<"x-ha-policy">>) of - undefined -> {ok, BQM} = application:get_env(backing_queue_module), - BQM; - _Policy -> rabbit_mirror_queue_master - end. - -ensure_sync_timer(State = #q{sync_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?SYNC_INTERVAL, rabbit_amqqueue, sync_timeout, [self()]), - State#q{sync_timer_ref = TRef}; -ensure_sync_timer(State) -> - State. - -stop_sync_timer(State = #q{sync_timer_ref = undefined}) -> - State; -stop_sync_timer(State = #q{sync_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{sync_timer_ref = undefined}. - -ensure_rate_timer(State = #q{rate_timer_ref = undefined}) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), - State#q{rate_timer_ref = TRef}; -ensure_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -ensure_rate_timer(State) -> - State. - -stop_rate_timer(State = #q{rate_timer_ref = undefined}) -> - State; -stop_rate_timer(State = #q{rate_timer_ref = just_measured}) -> - State#q{rate_timer_ref = undefined}; -stop_rate_timer(State = #q{rate_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{rate_timer_ref = undefined}. - -stop_expiry_timer(State = #q{expiry_timer_ref = undefined}) -> - State; -stop_expiry_timer(State = #q{expiry_timer_ref = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#q{expiry_timer_ref = undefined}. - -%% We wish to expire only when there are no consumers *and* the expiry -%% hasn't been refreshed (by queue.declare or basic.get) for the -%% configured period. -ensure_expiry_timer(State = #q{expires = undefined}) -> - State; -ensure_expiry_timer(State = #q{expires = Expires}) -> - case is_unused(State) of - true -> - NewState = stop_expiry_timer(State), - {ok, TRef} = timer:apply_after( - Expires, rabbit_amqqueue, maybe_expire, [self()]), - NewState#q{expiry_timer_ref = TRef}; - false -> - State - end. - -ensure_stats_timer(State = #q{stats_timer = StatsTimer, - q = Q}) -> - State#q{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> rabbit_amqqueue:emit_stats(Q) end)}. - -assert_invariant(#q{active_consumers = AC, - backing_queue = BQ, backing_queue_state = BQS}) -> - true = (queue:is_empty(AC) orelse BQ:is_empty(BQS)). - -lookup_ch(ChPid) -> - case get({ch, ChPid}) of - undefined -> not_found; - C -> C - end. - -ch_record(ChPid) -> - Key = {ch, ChPid}, - case get(Key) of - undefined -> MonitorRef = erlang:monitor(process, ChPid), - C = #cr{consumer_count = 0, - ch_pid = ChPid, - monitor_ref = MonitorRef, - acktags = sets:new(), - is_limit_active = false, - unsent_message_count = 0}, - put(Key, C), - C; - C = #cr{} -> C - end. - -store_ch_record(C = #cr{ch_pid = ChPid}) -> - put({ch, ChPid}, C). - -maybe_store_ch_record(C = #cr{consumer_count = ConsumerCount, - acktags = ChAckTags, - unsent_message_count = UnsentMessageCount}) -> - case {sets:size(ChAckTags), ConsumerCount, UnsentMessageCount} of - {0, 0, 0} -> ok = erase_ch_record(C), - false; - _ -> store_ch_record(C), - true - end. - -erase_ch_record(#cr{ch_pid = ChPid, - limiter_pid = LimiterPid, - monitor_ref = MonitorRef}) -> - ok = rabbit_limiter:unregister(LimiterPid, self()), - erlang:demonitor(MonitorRef), - erase({ch, ChPid}), - ok. - -all_ch_record() -> [C || {{ch, _}, C} <- get()]. - -is_ch_blocked(#cr{unsent_message_count = Count, is_limit_active = Limited}) -> - Limited orelse Count >= ?UNSENT_MESSAGE_LIMIT. - -ch_record_state_transition(OldCR, NewCR) -> - case {is_ch_blocked(OldCR), is_ch_blocked(NewCR)} of - {true, false} -> unblock; - {false, true} -> block; - {_, _} -> ok - end. - -deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, - State = #q{q = #amqqueue{name = QName}, - active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - case queue:out(ActiveConsumers) of - {{value, QEntry = {ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}}, - ActiveConsumersTail} -> - C = #cr{limiter_pid = LimiterPid, - unsent_message_count = Count, - acktags = ChAckTags} = ch_record(ChPid), - IsMsgReady = PredFun(FunAcc, State), - case (IsMsgReady andalso - rabbit_limiter:can_send( LimiterPid, self(), AckRequired )) of - true -> - {{Message, IsDelivered, AckTag}, FunAcc1, State1} = - DeliverFun(AckRequired, FunAcc, State), - rabbit_channel:deliver( - ChPid, ConsumerTag, AckRequired, - {QName, self(), AckTag, IsDelivered, Message}), - ChAckTags1 = - case AckRequired of - true -> sets:add_element(AckTag, ChAckTags); - false -> ChAckTags - end, - NewC = C#cr{unsent_message_count = Count + 1, - acktags = ChAckTags1}, - true = maybe_store_ch_record(NewC), - {NewActiveConsumers, NewBlockedConsumers} = - case ch_record_state_transition(C, NewC) of - ok -> {queue:in(QEntry, ActiveConsumersTail), - BlockedConsumers}; - block -> {ActiveConsumers1, BlockedConsumers1} = - move_consumers(ChPid, - ActiveConsumersTail, - BlockedConsumers), - {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} - end, - State2 = State1#q{ - active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}, - deliver_msgs_to_consumers(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter - false when IsMsgReady -> - true = maybe_store_ch_record(C#cr{is_limit_active = true}), - {NewActiveConsumers, NewBlockedConsumers} = - move_consumers(ChPid, - ActiveConsumers, - BlockedConsumers), - deliver_msgs_to_consumers( - Funs, FunAcc, - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}); - false -> - %% no message was ready, so we don't need to block anyone - {FunAcc, State} - end; - {empty, _} -> - {FunAcc, State} - end. - -deliver_from_queue_pred(IsEmpty, _State) -> not IsEmpty. - -deliver_from_queue_deliver(AckRequired, false, State) -> - {{Message, IsDelivered, AckTag, Remaining}, State1} = - fetch(AckRequired, State), - {{Message, IsDelivered, AckTag}, 0 == Remaining, State1}. - -confirm_messages([], State) -> - State; -confirm_messages(MsgIds, State = #q{msg_id_to_channel = MTC}) -> - {CMs, MTC1} = lists:foldl( - fun(MsgId, {CMs, MTC0}) -> - case dict:find(MsgId, MTC0) of - {ok, {ChPid, MsgSeqNo}} -> - {gb_trees_cons(ChPid, MsgSeqNo, CMs), - dict:erase(MsgId, MTC0)}; - _ -> - {CMs, MTC0} - end - end, {gb_trees:empty(), MTC}, MsgIds), - gb_trees_foreach(fun rabbit_channel:confirm/2, CMs), - State#q{msg_id_to_channel = MTC1}. - -gb_trees_foreach(_, none) -> - ok; -gb_trees_foreach(Fun, {Key, Val, It}) -> - Fun(Key, Val), - gb_trees_foreach(Fun, gb_trees:next(It)); -gb_trees_foreach(Fun, Tree) -> - gb_trees_foreach(Fun, gb_trees:next(gb_trees:iterator(Tree))). - -gb_trees_cons(Key, Value, Tree) -> - case gb_trees:lookup(Key, Tree) of - {value, Values} -> gb_trees:update(Key, [Value | Values], Tree); - none -> gb_trees:insert(Key, [Value], Tree) - end. - -should_confirm_message(#delivery{msg_seq_no = undefined}, _State) -> - never; -should_confirm_message(#delivery{sender = ChPid, - msg_seq_no = MsgSeqNo, - message = #basic_message { - is_persistent = true, - id = MsgId}}, - #q{q = #amqqueue{durable = true}}) -> - {eventually, ChPid, MsgSeqNo, MsgId}; -should_confirm_message(_Delivery, _State) -> - immediately. - -needs_confirming({eventually, _, _, _}) -> true; -needs_confirming(_) -> false. - -maybe_record_confirm_message({eventually, ChPid, MsgSeqNo, MsgId}, - State = #q{msg_id_to_channel = MTC}) -> - State#q{msg_id_to_channel = dict:store(MsgId, {ChPid, MsgSeqNo}, MTC)}; -maybe_record_confirm_message(_Confirm, State) -> - State. - -run_message_queue(State) -> - Funs = {fun deliver_from_queue_pred/2, - fun deliver_from_queue_deliver/3}, - State1 = #q{backing_queue = BQ, backing_queue_state = BQS} = - drop_expired_messages(State), - IsEmpty = BQ:is_empty(BQS), - {_IsEmpty1, State2} = deliver_msgs_to_consumers(Funs, IsEmpty, State1), - State2. - -attempt_delivery(Delivery = #delivery{sender = ChPid, - message = Message, - msg_seq_no = MsgSeqNo}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - Confirm = should_confirm_message(Delivery, State), - case Confirm of - immediately -> rabbit_channel:confirm(ChPid, [MsgSeqNo]); - _ -> ok - end, - case BQ:is_duplicate(Message, BQS) of - {false, BQS1} -> - PredFun = fun (IsEmpty, _State) -> not IsEmpty end, - DeliverFun = - fun (AckRequired, false, - State1 = #q{backing_queue_state = BQS2}) -> - %% we don't need an expiry here because - %% messages are not being enqueued, so we use - %% an empty message_properties. - {AckTag, BQS3} = - BQ:publish_delivered( - AckRequired, Message, - (?BASE_MESSAGE_PROPERTIES)#message_properties{ - needs_confirming = needs_confirming(Confirm)}, - ChPid, BQS2), - {{Message, false, AckTag}, true, - State1#q{backing_queue_state = BQS3}} - end, - {Delivered, State2} = - deliver_msgs_to_consumers({ PredFun, DeliverFun }, false, - State#q{backing_queue_state = BQS1}), - {Delivered, Confirm, State2}; - {Duplicate, BQS1} -> - %% if the message has previously been seen by the BQ then - %% it must have been seen under the same circumstances as - %% now: i.e. if it is now a deliver_immediately then it - %% must have been before. - Delivered = case Duplicate of - published -> true; - discarded -> false - end, - {Delivered, Confirm, State#q{backing_queue_state = BQS1}} - end. - -deliver_or_enqueue(Delivery = #delivery{message = Message, - sender = ChPid}, State) -> - {Delivered, Confirm, State1} = attempt_delivery(Delivery, State), - State2 = #q{backing_queue = BQ, backing_queue_state = BQS} = - maybe_record_confirm_message(Confirm, State1), - case Delivered of - true -> State2; - false -> BQS1 = - BQ:publish(Message, - (message_properties(State)) #message_properties{ - needs_confirming = needs_confirming(Confirm)}, - ChPid, BQS), - ensure_ttl_timer(State2#q{backing_queue_state = BQS1}) - end. - -requeue_and_run(AckTags, State = #q{backing_queue = BQ, ttl=TTL}) -> - run_backing_queue( - BQ, fun (M, BQS) -> - {_MsgIds, BQS1} = - M:requeue(AckTags, reset_msg_expiry_fun(TTL), BQS), - BQS1 - end, State). - -fetch(AckRequired, State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - {Result, BQS1} = BQ:fetch(AckRequired, BQS), - {Result, State#q{backing_queue_state = BQS1}}. - -add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). - -remove_consumer(ChPid, ConsumerTag, Queue) -> - queue:filter(fun ({CP, #consumer{tag = CT}}) -> - (CP /= ChPid) or (CT /= ConsumerTag) - end, Queue). - -remove_consumers(ChPid, Queue) -> - {Kept, Removed} = split_by_channel(ChPid, Queue), - [emit_consumer_deleted(Ch, CTag) || - {Ch, #consumer{tag = CTag}} <- queue:to_list(Removed)], - Kept. - -move_consumers(ChPid, From, To) -> - {Kept, Removed} = split_by_channel(ChPid, From), - {Kept, queue:join(To, Removed)}. - -split_by_channel(ChPid, Queue) -> - {Kept, Removed} = lists:partition(fun ({CP, _}) -> CP /= ChPid end, - queue:to_list(Queue)), - {queue:from_list(Kept), queue:from_list(Removed)}. - -possibly_unblock(State, ChPid, Update) -> - case lookup_ch(ChPid) of - not_found -> - State; - C -> - NewC = Update(C), - maybe_store_ch_record(NewC), - case ch_record_state_transition(C, NewC) of - ok -> State; - unblock -> {NewBlockedConsumers, NewActiveConsumers} = - move_consumers(ChPid, - State#q.blocked_consumers, - State#q.active_consumers), - run_message_queue( - State#q{active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}) - end - end. - -should_auto_delete(#q{q = #amqqueue{auto_delete = false}}) -> false; -should_auto_delete(#q{has_had_consumers = false}) -> false; -should_auto_delete(State) -> is_unused(State). - -handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(DownPid) of - not_found -> - {ok, State}; - C = #cr{ch_pid = ChPid, acktags = ChAckTags} -> - ok = erase_ch_record(C), - State1 = State#q{ - exclusive_consumer = case Holder of - {ChPid, _} -> none; - Other -> Other - end, - active_consumers = remove_consumers( - ChPid, State#q.active_consumers), - blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, - case should_auto_delete(State1) of - true -> {stop, State1}; - false -> {ok, requeue_and_run(sets:to_list(ChAckTags), - ensure_expiry_timer(State1))} - end - end. - -cancel_holder(ChPid, ConsumerTag, {ChPid, ConsumerTag}) -> - none; -cancel_holder(_ChPid, _ConsumerTag, Holder) -> - Holder. - -check_exclusive_access({_ChPid, _ConsumerTag}, _ExclusiveConsume, _State) -> - in_use; -check_exclusive_access(none, false, _State) -> - ok; -check_exclusive_access(none, true, State) -> - case is_unused(State) of - true -> ok; - false -> in_use - end. - -is_unused(State) -> queue:is_empty(State#q.active_consumers) andalso - queue:is_empty(State#q.blocked_consumers). - -maybe_send_reply(_ChPid, undefined) -> ok; -maybe_send_reply(ChPid, Msg) -> ok = rabbit_channel:send_command(ChPid, Msg). - -qname(#q{q = #amqqueue{name = QName}}) -> QName. - -backing_queue_timeout(State = #q{backing_queue = BQ}) -> - run_backing_queue(BQ, fun (M, BQS) -> M:timeout(BQS) end, State). - -run_backing_queue(Mod, Fun, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - run_message_queue(State#q{backing_queue_state = BQ:invoke(Mod, Fun, BQS)}). - -subtract_acks(A, B) when is_list(B) -> - lists:foldl(fun sets:del_element/2, A, B). - -discard_delivery(#delivery{sender = ChPid, - message = Message}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - State#q{backing_queue_state = BQ:discard(Message, ChPid, BQS)}. - -reset_msg_expiry_fun(TTL) -> - fun(MsgProps) -> - MsgProps#message_properties{expiry = calculate_msg_expiry(TTL)} - end. - -message_properties(#q{ttl=TTL}) -> - #message_properties{expiry = calculate_msg_expiry(TTL)}. - -calculate_msg_expiry(undefined) -> undefined; -calculate_msg_expiry(TTL) -> now_micros() + (TTL * 1000). - -drop_expired_messages(State = #q{ttl = undefined}) -> - State; -drop_expired_messages(State = #q{backing_queue_state = BQS, - backing_queue = BQ}) -> - Now = now_micros(), - BQS1 = BQ:dropwhile( - fun (#message_properties{expiry = Expiry}) -> Now > Expiry end, - BQS), - ensure_ttl_timer(State#q{backing_queue_state = BQS1}). - -ensure_ttl_timer(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL, - ttl_timer_ref = undefined}) - when TTL =/= undefined -> - case BQ:is_empty(BQS) of - true -> State; - false -> TRef = timer:apply_after(TTL, rabbit_amqqueue, drop_expired, - [self()]), - State#q{ttl_timer_ref = TRef} - end; -ensure_ttl_timer(State) -> - State. - -now_micros() -> timer:now_diff(now(), {0,0,0}). - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(name, #q{q = #amqqueue{name = Name}}) -> Name; -i(durable, #q{q = #amqqueue{durable = Durable}}) -> Durable; -i(auto_delete, #q{q = #amqqueue{auto_delete = AutoDelete}}) -> AutoDelete; -i(arguments, #q{q = #amqqueue{arguments = Arguments}}) -> Arguments; -i(pid, _) -> - self(); -i(owner_pid, #q{q = #amqqueue{exclusive_owner = none}}) -> - ''; -i(owner_pid, #q{q = #amqqueue{exclusive_owner = ExclusiveOwner}}) -> - ExclusiveOwner; -i(exclusive_consumer_pid, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_pid, #q{exclusive_consumer = {ChPid, _ConsumerTag}}) -> - ChPid; -i(exclusive_consumer_tag, #q{exclusive_consumer = none}) -> - ''; -i(exclusive_consumer_tag, #q{exclusive_consumer = {_ChPid, ConsumerTag}}) -> - ConsumerTag; -i(messages_ready, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:len(BQS); -i(messages_unacknowledged, _) -> - lists:sum([sets:size(C#cr.acktags) || C <- all_ch_record()]); -i(messages, State) -> - lists:sum([i(Item, State) || Item <- [messages_ready, - messages_unacknowledged]]); -i(consumers, State) -> - queue:len(State#q.active_consumers) + queue:len(State#q.blocked_consumers); -i(memory, _) -> - {memory, M} = process_info(self(), memory), - M; -i(backing_queue_status, #q{backing_queue_state = BQS, backing_queue = BQ}) -> - BQ:status(BQS); -i(slave_pids, #q{q = #amqqueue{name = Name}}) -> - {ok, #amqqueue{slave_pids = SPids}} = rabbit_amqqueue:lookup(Name), - SPids; -i(mirror_nodes, #q{q = #amqqueue{name = Name}}) -> - {ok, #amqqueue{mirror_nodes = MNodes}} = rabbit_amqqueue:lookup(Name), - MNodes; -i(Item, _) -> - throw({bad_argument, Item}). - -consumers(#q{active_consumers = ActiveConsumers, - blocked_consumers = BlockedConsumers}) -> - rabbit_misc:queue_fold( - fun ({ChPid, #consumer{tag = ConsumerTag, - ack_required = AckRequired}}, Acc) -> - [{ChPid, ConsumerTag, AckRequired} | Acc] - end, [], queue:join(ActiveConsumers, BlockedConsumers)). - -emit_stats(State) -> - emit_stats(State, []). - -emit_stats(State, Extra) -> - rabbit_event:notify(queue_stats, Extra ++ infos(?STATISTICS_KEYS, State)). - -emit_consumer_created(ChPid, ConsumerTag, Exclusive, AckRequired) -> - emit_consumer_event(ChPid, ConsumerTag, Exclusive, AckRequired, - consumer_created). - -emit_consumer_exists(ChPid, ConsumerTag, Exclusive, AckRequired) -> - emit_consumer_event(ChPid, ConsumerTag, Exclusive, AckRequired, - consumer_exists). - -emit_consumer_event(ChPid, ConsumerTag, Exclusive, AckRequired, Type) -> - rabbit_event:notify(Type, - [{consumer_tag, ConsumerTag}, - {exclusive, Exclusive}, - {ack_required, AckRequired}, - {channel, ChPid}, - {queue, self()}]). - -emit_consumer_deleted(ChPid, ConsumerTag) -> - rabbit_event:notify(consumer_deleted, - [{consumer_tag, ConsumerTag}, - {channel, ChPid}, - {queue, self()}]). - -%%---------------------------------------------------------------------------- - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - consumers -> 9; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - update_ram_duration -> 8; - delete_immediately -> 8; - {set_ram_duration_target, _Duration} -> 8; - {set_maximum_since_use, _Age} -> 8; - maybe_expire -> 8; - drop_expired -> 8; - emit_stats -> 7; - {ack, _AckTags, _ChPid} -> 7; - {reject, _AckTags, _Requeue, _ChPid} -> 7; - {notify_sent, _ChPid} -> 7; - {unblock, _ChPid} -> 7; - {run_backing_queue, _Mod, _Fun} -> 6; - sync_timeout -> 6; - _ -> 0 - end. - -prioritise_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - #q{q = #amqqueue{exclusive_owner = DownPid}}) -> 8; -prioritise_info(_Msg, _State) -> 0. - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = none}}) -> - declare(Recover, From, State); - -handle_call({init, Recover}, From, - State = #q{q = #amqqueue{exclusive_owner = Owner}}) -> - case rabbit_misc:is_process_alive(Owner) of - true -> erlang:monitor(process, Owner), - declare(Recover, From, State); - false -> #q{backing_queue = BQ, backing_queue_state = undefined, - q = #amqqueue{name = QName} = Q} = State, - gen_server2:reply(From, not_found), - case Recover of - true -> ok; - _ -> rabbit_log:warning( - "Queue ~p exclusive owner went away~n", [QName]) - end, - BQS = bq_init(BQ, Q, Recover), - %% Rely on terminate to delete the queue. - {stop, normal, State#q{backing_queue_state = BQS}} - end; - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(consumers, _From, State) -> - reply(consumers(State), State); - -handle_call({deliver_immediately, Delivery}, _From, State) -> - %% Synchronous, "immediate" delivery mode - %% - %% FIXME: Is this correct semantics? - %% - %% I'm worried in particular about the case where an exchange has - %% two queues against a particular routing key, and a message is - %% sent in immediate mode through the binding. In non-immediate - %% mode, both queues get the message, saving it for later if - %% there's noone ready to receive it just now. In immediate mode, - %% should both queues still get the message, somehow, or should - %% just all ready-to-consume queues get the message, with unready - %% queues discarding the message? - %% - {Delivered, Confirm, State1} = attempt_delivery(Delivery, State), - reply(Delivered, case Delivered of - true -> maybe_record_confirm_message(Confirm, State1); - false -> discard_delivery(Delivery, State1) - end); - -handle_call({deliver, Delivery}, From, State) -> - %% Synchronous, "mandatory" delivery mode. Reply asap. - gen_server2:reply(From, true), - noreply(deliver_or_enqueue(Delivery, State)); - -handle_call({notify_down, ChPid}, _From, State) -> - %% we want to do this synchronously, so that auto_deleted queues - %% are no longer visible by the time we send a response to the - %% client. The queue is ultimately deleted in terminate/2; if we - %% return stop with a reply, terminate/2 will be called by - %% gen_server2 *before* the reply is sent. - case handle_ch_down(ChPid, State) of - {ok, NewState} -> reply(ok, NewState); - {stop, NewState} -> {stop, normal, ok, NewState} - end; - -handle_call({basic_get, ChPid, NoAck}, _From, - State = #q{q = #amqqueue{name = QName}}) -> - AckRequired = not NoAck, - State1 = ensure_expiry_timer(State), - case fetch(AckRequired, drop_expired_messages(State1)) of - {empty, State2} -> - reply(empty, State2); - {{Message, IsDelivered, AckTag, Remaining}, State2} -> - State3 = - case AckRequired of - true -> C = #cr{acktags = ChAckTags} = ch_record(ChPid), - true = maybe_store_ch_record( - C#cr{acktags = - sets:add_element(AckTag, - ChAckTags)}), - State2; - false -> State2 - end, - Msg = {QName, self(), AckTag, IsDelivered, Message}, - reply({ok, Remaining, Msg}, State3) - end; - -handle_call({basic_consume, NoAck, ChPid, LimiterPid, - ConsumerTag, ExclusiveConsume, OkMsg}, - _From, State = #q{exclusive_consumer = ExistingHolder}) -> - case check_exclusive_access(ExistingHolder, ExclusiveConsume, - State) of - in_use -> - reply({error, exclusive_consume_unavailable}, State); - ok -> - C = #cr{consumer_count = ConsumerCount} = ch_record(ChPid), - Consumer = #consumer{tag = ConsumerTag, - ack_required = not NoAck}, - true = maybe_store_ch_record(C#cr{consumer_count = ConsumerCount +1, - limiter_pid = LimiterPid}), - ok = case ConsumerCount of - 0 -> rabbit_limiter:register(LimiterPid, self()); - _ -> ok - end, - ExclusiveConsumer = if ExclusiveConsume -> {ChPid, ConsumerTag}; - true -> ExistingHolder - end, - State1 = State#q{has_had_consumers = true, - exclusive_consumer = ExclusiveConsumer}, - ok = maybe_send_reply(ChPid, OkMsg), - State2 = - case is_ch_blocked(C) of - true -> State1#q{ - blocked_consumers = - add_consumer(ChPid, Consumer, - State1#q.blocked_consumers)}; - false -> run_message_queue( - State1#q{ - active_consumers = - add_consumer(ChPid, Consumer, - State1#q.active_consumers)}) - end, - emit_consumer_created(ChPid, ConsumerTag, ExclusiveConsume, - not NoAck), - reply(ok, State2) - end; - -handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, - State = #q{exclusive_consumer = Holder}) -> - case lookup_ch(ChPid) of - not_found -> - ok = maybe_send_reply(ChPid, OkMsg), - reply(ok, State); - C = #cr{consumer_count = ConsumerCount, - limiter_pid = LimiterPid} -> - C1 = C#cr{consumer_count = ConsumerCount -1}, - maybe_store_ch_record( - case ConsumerCount of - 1 -> ok = rabbit_limiter:unregister(LimiterPid, self()), - C1#cr{limiter_pid = undefined}; - _ -> C1 - end), - emit_consumer_deleted(ChPid, ConsumerTag), - ok = maybe_send_reply(ChPid, OkMsg), - NewState = - State#q{exclusive_consumer = cancel_holder(ChPid, - ConsumerTag, - Holder), - active_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.active_consumers), - blocked_consumers = remove_consumer( - ChPid, ConsumerTag, - State#q.blocked_consumers)}, - case should_auto_delete(NewState) of - false -> reply(ok, ensure_expiry_timer(NewState)); - true -> {stop, normal, ok, NewState} - end - end; - -handle_call(stat, _From, State) -> - State1 = #q{backing_queue = BQ, backing_queue_state = BQS, - active_consumers = ActiveConsumers} = - drop_expired_messages(ensure_expiry_timer(State)), - reply({ok, BQ:len(BQS), queue:len(ActiveConsumers)}, State1); - -handle_call({delete, IfUnused, IfEmpty}, _From, - State = #q{backing_queue_state = BQS, backing_queue = BQ}) -> - IsEmpty = BQ:is_empty(BQS), - IsUnused = is_unused(State), - if - IfEmpty and not(IsEmpty) -> - reply({error, not_empty}, State); - IfUnused and not(IsUnused) -> - reply({error, in_use}, State); - true -> - {stop, normal, {ok, BQ:len(BQS)}, State} - end; - -handle_call(purge, _From, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {Count, BQS1} = BQ:purge(BQS), - reply({ok, Count}, State#q{backing_queue_state = BQS1}); - -handle_call({requeue, AckTags, ChPid}, From, State) -> - gen_server2:reply(From, ok), - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(requeue_and_run(AckTags, State)) - end. - -handle_cast({run_backing_queue, Mod, Fun}, State) -> - noreply(run_backing_queue(Mod, Fun, State)); - -handle_cast(sync_timeout, State) -> - noreply(backing_queue_timeout(State#q{sync_timer_ref = undefined})); - -handle_cast({deliver, Delivery}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - noreply(deliver_or_enqueue(Delivery, State)); - -handle_cast({ack, AckTags, ChPid}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - maybe_store_ch_record(C#cr{acktags = subtract_acks( - ChAckTags, AckTags)}), - {_Guids, BQS1} = BQ:ack(AckTags, BQS), - noreply(State#q{backing_queue_state = BQS1}) - end; - -handle_cast({reject, AckTags, Requeue, ChPid}, - State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - case lookup_ch(ChPid) of - not_found -> - noreply(State); - C = #cr{acktags = ChAckTags} -> - ChAckTags1 = subtract_acks(ChAckTags, AckTags), - maybe_store_ch_record(C#cr{acktags = ChAckTags1}), - noreply(case Requeue of - true -> requeue_and_run(AckTags, State); - false -> {_Guids, BQS1} = BQ:ack(AckTags, BQS), - State#q{backing_queue_state = BQS1} - end) - end; - -handle_cast(delete_immediately, State) -> - {stop, normal, State}; - -handle_cast({unblock, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C) -> C#cr{is_limit_active = false} end)); - -handle_cast({notify_sent, ChPid}, State) -> - noreply( - possibly_unblock(State, ChPid, - fun (C = #cr{unsent_message_count = Count}) -> - C#cr{unsent_message_count = Count - 1} - end)); - -handle_cast({limit, ChPid, LimiterPid}, State) -> - noreply( - possibly_unblock( - State, ChPid, - fun (C = #cr{consumer_count = ConsumerCount, - limiter_pid = OldLimiterPid, - is_limit_active = Limited}) -> - if ConsumerCount =/= 0 andalso OldLimiterPid == undefined -> - ok = rabbit_limiter:register(LimiterPid, self()); - true -> - ok - end, - NewLimited = Limited andalso LimiterPid =/= undefined, - C#cr{limiter_pid = LimiterPid, is_limit_active = NewLimited} - end)); - -handle_cast({flush, ChPid}, State) -> - ok = rabbit_channel:flushed(ChPid, self()), - noreply(State); - -handle_cast(update_ram_duration, State = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State#q{rate_timer_ref = just_measured, - backing_queue_state = BQS2}); - -handle_cast({set_ram_duration_target, Duration}, - State = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - BQS1 = BQ:set_ram_duration_target(Duration, BQS), - noreply(State#q{backing_queue_state = BQS1}); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_cast(maybe_expire, State) -> - case is_unused(State) of - true -> ?LOGDEBUG("Queue lease expired for ~p~n", [State#q.q]), - {stop, normal, State}; - false -> noreply(ensure_expiry_timer(State)) - end; - -handle_cast(drop_expired, State) -> - noreply(drop_expired_messages(State#q{ttl_timer_ref = undefined})); - -handle_cast(emit_stats, State = #q{stats_timer = StatsTimer}) -> - %% Do not invoke noreply as it would see no timer and create a new one. - emit_stats(State), - State1 = State#q{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}, - assert_invariant(State1), - {noreply, State1, hibernate}; - -handle_cast(force_event_refresh, State = #q{exclusive_consumer = Exclusive}) -> - rabbit_event:notify(queue_exists, infos(?CREATION_EVENT_KEYS, State)), - case Exclusive of - none -> [emit_consumer_exists(Ch, CTag, false, AckRequired) || - {Ch, CTag, AckRequired} <- consumers(State)]; - _ -> [emit_consumer_exists(Ch, CTag, true, AckRequired) || - {Ch, CTag, AckRequired} <- consumers(State), - Exclusive = {Ch, CTag}] - end, - noreply(State). - -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, - State = #q{q = #amqqueue{exclusive_owner = DownPid}}) -> - %% Exclusively owned queues must disappear with their owner. In - %% the case of clean shutdown we delete the queue synchronously in - %% the reader - although not required by the spec this seems to - %% match what people expect (see bug 21824). However we need this - %% monitor-and-async- delete in case the connection goes away - %% unexpectedly. - {stop, normal, State}; -handle_info({'DOWN', _MonitorRef, process, DownPid, _Reason}, State) -> - case handle_ch_down(DownPid, State) of - {ok, NewState} -> noreply(NewState); - {stop, NewState} -> {stop, normal, NewState} - end; - -handle_info(timeout, State) -> - noreply(backing_queue_timeout(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; - -handle_info(Info, State) -> - ?LOGDEBUG("Info in queue: ~p~n", [Info]), - {stop, {unhandled_info, Info}, State}. - -handle_pre_hibernate(State = #q{backing_queue_state = undefined}) -> - {hibernate, State}; -handle_pre_hibernate(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - stats_timer = StatsTimer}) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - BQS3 = BQ:handle_pre_hibernate(BQS2), - rabbit_event:if_enabled(StatsTimer, - fun () -> - emit_stats(State, [{idle_since, now()}]) - end), - State1 = State#q{stats_timer = rabbit_event:stop_stats_timer(StatsTimer), - backing_queue_state = BQS3}, - {hibernate, stop_rate_timer(State1)}. - -format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). diff --git a/src/rabbit_amqqueue_sup.erl b/src/rabbit_amqqueue_sup.erl deleted file mode 100644 index 2c28adce..00000000 --- a/src/rabbit_amqqueue_sup.erl +++ /dev/null @@ -1,38 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_amqqueue_sup). - --behaviour(supervisor2). - --export([start_link/0, start_child/2]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor2:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Node, Args) -> - supervisor2:start_child({?SERVER, Node}, Args). - -init([]) -> - {ok, {{simple_one_for_one_terminate, 10, 10}, - [{rabbit_amqqueue, {rabbit_amqqueue_process, start_link, []}, - temporary, ?MAX_WAIT, worker, [rabbit_amqqueue_process]}]}}. diff --git a/src/rabbit_auth_backend.erl b/src/rabbit_auth_backend.erl deleted file mode 100644 index ade158bb..00000000 --- a/src/rabbit_auth_backend.erl +++ /dev/null @@ -1,57 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description proplist as with auth mechanisms, - %% exchanges. Currently unused. - {description, 0}, - - %% Check a user can log in, given a username and a proplist of - %% authentication information (e.g. [{password, Password}]). - %% - %% Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {error, Error} - %% Something went wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {check_user_login, 2}, - - %% Given #user and vhost, can a user log in to a vhost? - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_vhost_access, 2}, - - %% Given #user, resource and permission, can a user access a resource? - %% - %% Possible responses: - %% true - %% false - %% {error, Error} - %% Something went wrong. Log and die. - {check_resource_access, 3} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_backend_internal.erl b/src/rabbit_auth_backend_internal.erl deleted file mode 100644 index 6a018bd1..00000000 --- a/src/rabbit_auth_backend_internal.erl +++ /dev/null @@ -1,333 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_backend_internal). --include("rabbit.hrl"). - --behaviour(rabbit_auth_backend). - --export([description/0]). --export([check_user_login/2, check_vhost_access/2, check_resource_access/3]). - --export([add_user/2, delete_user/1, change_password/2, set_tags/2, - list_users/0, user_info_keys/0, lookup_user/1, clear_password/1]). --export([make_salt/0, check_password/2, change_password_hash/2, - hash_password/1]). --export([set_permissions/5, clear_permissions/2, - list_permissions/0, list_vhost_permissions/1, list_user_permissions/1, - list_user_vhost_permissions/2, perms_info_keys/0, - vhost_perms_info_keys/0, user_perms_info_keys/0, - user_vhost_perms_info_keys/0]). - --include("rabbit_auth_backend_spec.hrl"). - --ifdef(use_specs). - --type(regexp() :: binary()). - --spec(add_user/2 :: (rabbit_types:username(), rabbit_types:password()) -> 'ok'). --spec(delete_user/1 :: (rabbit_types:username()) -> 'ok'). --spec(change_password/2 :: (rabbit_types:username(), rabbit_types:password()) - -> 'ok'). --spec(clear_password/1 :: (rabbit_types:username()) -> 'ok'). --spec(make_salt/0 :: () -> binary()). --spec(check_password/2 :: (rabbit_types:password(), - rabbit_types:password_hash()) -> boolean()). --spec(change_password_hash/2 :: (rabbit_types:username(), - rabbit_types:password_hash()) -> 'ok'). --spec(hash_password/1 :: (rabbit_types:password()) - -> rabbit_types:password_hash()). --spec(set_tags/2 :: (rabbit_types:username(), [atom()]) -> 'ok'). --spec(list_users/0 :: () -> rabbit_types:infos()). --spec(user_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(lookup_user/1 :: (rabbit_types:username()) - -> rabbit_types:ok(rabbit_types:internal_user()) - | rabbit_types:error('not_found')). --spec(set_permissions/5 ::(rabbit_types:username(), rabbit_types:vhost(), - regexp(), regexp(), regexp()) -> 'ok'). --spec(clear_permissions/2 :: (rabbit_types:username(), rabbit_types:vhost()) - -> 'ok'). --spec(list_permissions/0 :: () -> rabbit_types:infos()). --spec(list_vhost_permissions/1 :: - (rabbit_types:vhost()) -> rabbit_types:infos()). --spec(list_user_permissions/1 :: - (rabbit_types:username()) -> rabbit_types:infos()). --spec(list_user_vhost_permissions/2 :: - (rabbit_types:username(), rabbit_types:vhost()) - -> rabbit_types:infos()). --spec(perms_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(vhost_perms_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(user_perms_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(user_vhost_perms_info_keys/0 :: () -> rabbit_types:info_keys()). --endif. - -%%---------------------------------------------------------------------------- - --define(PERMS_INFO_KEYS, [configure, write, read]). --define(USER_INFO_KEYS, [user, tags]). - -%% Implementation of rabbit_auth_backend - -description() -> - [{name, <<"Internal">>}, - {description, <<"Internal user / password database">>}]. - -check_user_login(Username, []) -> - internal_check_user_login(Username, fun(_) -> true end); -check_user_login(Username, [{password, Password}]) -> - internal_check_user_login( - Username, fun(#internal_user{password_hash = Hash}) -> - check_password(Password, Hash) - end); -check_user_login(Username, AuthProps) -> - exit({unknown_auth_props, Username, AuthProps}). - -internal_check_user_login(Username, Fun) -> - Refused = {refused, "user '~s' - invalid credentials", [Username]}, - case lookup_user(Username) of - {ok, User = #internal_user{tags = Tags}} -> - case Fun(User) of - true -> {ok, #user{username = Username, - tags = Tags, - auth_backend = ?MODULE, - impl = User}}; - _ -> Refused - end; - {error, not_found} -> - Refused - end. - -check_vhost_access(#user{username = Username}, VHost) -> - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHost}}) of - [] -> false; - [_R] -> true - end - end). - -check_resource_access(#user{username = Username}, - #resource{virtual_host = VHostPath, name = Name}, - Permission) -> - case mnesia:dirty_read({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) of - [] -> - false; - [#user_permission{permission = P}] -> - PermRegexp = case element(permission_index(Permission), P) of - %% <<"^$">> breaks Emacs' erlang mode - <<"">> -> <<$^, $$>>; - RE -> RE - end, - case re:run(Name, PermRegexp, [{capture, none}]) of - match -> true; - nomatch -> false - end - end. - -permission_index(configure) -> #permission.configure; -permission_index(write) -> #permission.write; -permission_index(read) -> #permission.read. - -%%---------------------------------------------------------------------------- -%% Manipulation of the user database - -add_user(Username, Password) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_user, Username}) of - [] -> - ok = mnesia:write( - rabbit_user, - #internal_user{username = Username, - password_hash = - hash_password(Password), - tags = []}, - write); - _ -> - mnesia:abort({user_already_exists, Username}) - end - end), - rabbit_log:info("Created user ~p~n", [Username]), - R. - -delete_user(Username) -> - R = rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - ok = mnesia:delete({rabbit_user, Username}), - [ok = mnesia:delete_object( - rabbit_user_permission, R, write) || - R <- mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = '_'}, - permission = '_'}, - write)], - ok - end)), - rabbit_log:info("Deleted user ~p~n", [Username]), - R. - -change_password(Username, Password) -> - change_password_hash(Username, hash_password(Password)). - -clear_password(Username) -> - change_password_hash(Username, <<"">>). - -change_password_hash(Username, PasswordHash) -> - R = update_user(Username, fun(User) -> - User#internal_user{ - password_hash = PasswordHash } - end), - rabbit_log:info("Changed password for user ~p~n", [Username]), - R. - -hash_password(Cleartext) -> - Salt = make_salt(), - Hash = salted_md5(Salt, Cleartext), - <>. - -check_password(Cleartext, <>) -> - Hash =:= salted_md5(Salt, Cleartext). - -make_salt() -> - {A1,A2,A3} = now(), - random:seed(A1, A2, A3), - Salt = random:uniform(16#ffffffff), - <>. - -salted_md5(Salt, Cleartext) -> - Salted = <>, - erlang:md5(Salted). - -set_tags(Username, Tags) -> - R = update_user(Username, fun(User) -> - User#internal_user{tags = Tags} - end), - rabbit_log:info("Set user tags for user ~p to ~p~n", - [Username, Tags]), - R. - -update_user(Username, Fun) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user( - Username, - fun () -> - {ok, User} = lookup_user(Username), - ok = mnesia:write(rabbit_user, Fun(User), write) - end)). - -list_users() -> - [[{user, Username}, {tags, Tags}] || - #internal_user{username = Username, tags = Tags} <- - mnesia:dirty_match_object(rabbit_user, #internal_user{_ = '_'})]. - -user_info_keys() -> ?USER_INFO_KEYS. - -lookup_user(Username) -> - rabbit_misc:dirty_read({rabbit_user, Username}). - -validate_regexp(RegexpBin) -> - Regexp = binary_to_list(RegexpBin), - case re:compile(Regexp) of - {ok, _} -> ok; - {error, Reason} -> throw({error, {invalid_regexp, Regexp, Reason}}) - end. - -set_permissions(Username, VHostPath, ConfigurePerm, WritePerm, ReadPerm) -> - lists:map(fun validate_regexp/1, [ConfigurePerm, WritePerm, ReadPerm]), - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> ok = mnesia:write( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = #permission{ - configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}}, - write) - end)). - - -clear_permissions(Username, VHostPath) -> - rabbit_misc:execute_mnesia_transaction( - rabbit_misc:with_user_and_vhost( - Username, VHostPath, - fun () -> - ok = mnesia:delete({rabbit_user_permission, - #user_vhost{username = Username, - virtual_host = VHostPath}}) - end)). - -perms_info_keys() -> [user, vhost | ?PERMS_INFO_KEYS]. -vhost_perms_info_keys() -> [user | ?PERMS_INFO_KEYS]. -user_perms_info_keys() -> [vhost | ?PERMS_INFO_KEYS]. -user_vhost_perms_info_keys() -> ?PERMS_INFO_KEYS. - -list_permissions() -> - list_permissions(perms_info_keys(), match_user_vhost('_', '_')). - -list_vhost_permissions(VHostPath) -> - list_permissions( - vhost_perms_info_keys(), - rabbit_vhost:with(VHostPath, match_user_vhost('_', VHostPath))). - -list_user_permissions(Username) -> - list_permissions( - user_perms_info_keys(), - rabbit_misc:with_user(Username, match_user_vhost(Username, '_'))). - -list_user_vhost_permissions(Username, VHostPath) -> - list_permissions( - user_vhost_perms_info_keys(), - rabbit_misc:with_user_and_vhost( - Username, VHostPath, match_user_vhost(Username, VHostPath))). - -filter_props(Keys, Props) -> [T || T = {K, _} <- Props, lists:member(K, Keys)]. - -list_permissions(Keys, QueryThunk) -> - [filter_props(Keys, [{user, Username}, - {vhost, VHostPath}, - {configure, ConfigurePerm}, - {write, WritePerm}, - {read, ReadPerm}]) || - #user_permission{user_vhost = #user_vhost{username = Username, - virtual_host = VHostPath}, - permission = #permission{ configure = ConfigurePerm, - write = WritePerm, - read = ReadPerm}} <- - %% TODO: use dirty ops instead - rabbit_misc:execute_mnesia_transaction(QueryThunk)]. - -match_user_vhost(Username, VHostPath) -> - fun () -> mnesia:match_object( - rabbit_user_permission, - #user_permission{user_vhost = #user_vhost{ - username = Username, - virtual_host = VHostPath}, - permission = '_'}, - read) - end. diff --git a/src/rabbit_auth_mechanism.erl b/src/rabbit_auth_mechanism.erl deleted file mode 100644 index 897199ee..00000000 --- a/src/rabbit_auth_mechanism.erl +++ /dev/null @@ -1,46 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% A description. - {description, 0}, - - %% If this mechanism is enabled, should it be offered for a given socket? - %% (primarily so EXTERNAL can be SSL-only) - {should_offer, 1}, - - %% Called before authentication starts. Should create a state - %% object to be passed through all the stages of authentication. - {init, 1}, - - %% Handle a stage of authentication. Possible responses: - %% {ok, User} - %% Authentication succeeded, and here's the user record. - %% {challenge, Challenge, NextState} - %% Another round is needed. Here's the state I want next time. - %% {protocol_error, Msg, Args} - %% Client got the protocol wrong. Log and die. - %% {refused, Msg, Args} - %% Client failed authentication. Log and die. - {handle_response, 2} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_auth_mechanism_amqplain.erl b/src/rabbit_auth_mechanism_amqplain.erl deleted file mode 100644 index b8682a46..00000000 --- a/src/rabbit_auth_mechanism_amqplain.erl +++ /dev/null @@ -1,58 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_amqplain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism amqplain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"AMQPLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% AMQPLAIN, as used by Qpid Python test suite. The 0-8 spec actually -%% defines this as PLAIN, but in 0-9 that definition is gone, instead -%% referring generically to "SASL security mechanism", i.e. the above. - -description() -> - [{name, <<"AMQPLAIN">>}, - {description, <<"QPid AMQPLAIN mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - LoginTable = rabbit_binary_parser:parse_table(Response), - case {lists:keysearch(<<"LOGIN">>, 1, LoginTable), - lists:keysearch(<<"PASSWORD">>, 1, LoginTable)} of - {{value, {_, longstr, User}}, - {value, {_, longstr, Pass}}} -> - rabbit_access_control:check_user_pass_login(User, Pass); - _ -> - {protocol_error, - "AMQPLAIN auth info ~w is missing LOGIN or PASSWORD field", - [LoginTable]} - end. diff --git a/src/rabbit_auth_mechanism_cr_demo.erl b/src/rabbit_auth_mechanism_cr_demo.erl deleted file mode 100644 index acbb6e48..00000000 --- a/src/rabbit_auth_mechanism_cr_demo.erl +++ /dev/null @@ -1,60 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_cr_demo). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism cr-demo"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"RABBIT-CR-DEMO">>, - ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --record(state, {username = undefined}). - -%% Provides equivalent security to PLAIN but demos use of Connection.Secure(Ok) -%% START-OK: Username -%% SECURE: "Please tell me your password" -%% SECURE-OK: "My password is ~s", [Password] - -description() -> - [{name, <<"RABBIT-CR-DEMO">>}, - {description, <<"RabbitMQ Demo challenge-response authentication " - "mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - #state{}. - -handle_response(Response, State = #state{username = undefined}) -> - {challenge, <<"Please tell me your password">>, - State#state{username = Response}}; - -handle_response(<<"My password is ", Password/binary>>, - #state{username = Username}) -> - rabbit_access_control:check_user_pass_login(Username, Password); -handle_response(Response, _State) -> - {protocol_error, "Invalid response '~s'", [Response]}. diff --git a/src/rabbit_auth_mechanism_plain.erl b/src/rabbit_auth_mechanism_plain.erl deleted file mode 100644 index 2448acb6..00000000 --- a/src/rabbit_auth_mechanism_plain.erl +++ /dev/null @@ -1,76 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_auth_mechanism_plain). --include("rabbit.hrl"). - --behaviour(rabbit_auth_mechanism). - --export([description/0, should_offer/1, init/1, handle_response/2]). - --include("rabbit_auth_mechanism_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "auth mechanism plain"}, - {mfa, {rabbit_registry, register, - [auth_mechanism, <<"PLAIN">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%% SASL PLAIN, as used by the Qpid Java client and our clients. Also, -%% apparently, by OpenAMQ. - -%% TODO: once the minimum erlang becomes R13B03, reimplement this -%% using the binary module - that makes use of BIFs to do binary -%% matching and will thus be much faster. - -description() -> - [{name, <<"PLAIN">>}, - {description, <<"SASL PLAIN authentication mechanism">>}]. - -should_offer(_Sock) -> - true. - -init(_Sock) -> - []. - -handle_response(Response, _State) -> - case extract_user_pass(Response) of - {ok, User, Pass} -> - rabbit_access_control:check_user_pass_login(User, Pass); - error -> - {protocol_error, "response ~p invalid", [Response]} - end. - -extract_user_pass(Response) -> - case extract_elem(Response) of - {ok, User, Response1} -> case extract_elem(Response1) of - {ok, Pass, <<>>} -> {ok, User, Pass}; - _ -> error - end; - error -> error - end. - -extract_elem(<<0:8, Rest/binary>>) -> - Count = next_null_pos(Rest, 0), - <> = Rest, - {ok, Elem, Rest1}; -extract_elem(_) -> - error. - -next_null_pos(<<>>, Count) -> Count; -next_null_pos(<<0:8, _Rest/binary>>, Count) -> Count; -next_null_pos(<<_:8, Rest/binary>>, Count) -> next_null_pos(Rest, Count + 1). diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl deleted file mode 100644 index 77278416..00000000 --- a/src/rabbit_backing_queue.erl +++ /dev/null @@ -1,171 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_backing_queue). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - %% Called on startup with a list of durable queue names. The - %% queues aren't being started at this point, but this call - %% allows the backing queue to perform any checking necessary for - %% the consistency of those queues, or initialise any other - %% shared resources. - {start, 1}, - - %% Called to tear down any state/resources. NB: Implementations - %% should not depend on this function being called on shutdown - %% and instead should hook into the rabbit supervision hierarchy. - {stop, 0}, - - %% Initialise the backing queue and its state. - %% - %% Takes - %% 1. the amqqueue record - %% 2. a boolean indicating whether the queue is an existing queue - %% that should be recovered - %% 3. an asynchronous callback which accepts a function of type - %% backing-queue-state to backing-queue-state. This callback - %% function can be safely invoked from any process, which - %% makes it useful for passing messages back into the backing - %% queue, especially as the backing queue does not have - %% control of its own mailbox. - {init, 3}, - - %% Called on queue shutdown when queue isn't being deleted. - {terminate, 2}, - - %% Called when the queue is terminating and needs to delete all - %% its content. - {delete_and_terminate, 2}, - - %% Remove all messages in the queue, but not messages which have - %% been fetched and are pending acks. - {purge, 1}, - - %% Publish a message. - {publish, 4}, - - %% Called for messages which have already been passed straight - %% out to a client. The queue will be empty for these calls - %% (i.e. saves the round trip through the backing queue). - {publish_delivered, 5}, - - %% Return ids of messages which have been confirmed since - %% the last invocation of this function (or initialisation). - %% - %% Message ids should only appear in the result of - %% drain_confirmed under the following circumstances: - %% - %% 1. The message appears in a call to publish_delivered/4 and - %% the first argument (ack_required) is false; or - %% 2. The message is fetched from the queue with fetch/2 and the - %% first argument (ack_required) is false; or - %% 3. The message is acked (ack/2 is called for the message); or - %% 4. The message is fully fsync'd to disk in such a way that the - %% recovery of the message is guaranteed in the event of a - %% crash of this rabbit node (excluding hardware failure). - %% - %% In addition to the above conditions, a message id may only - %% appear in the result of drain_confirmed if - %% #message_properties.needs_confirming = true when the msg was - %% published (through whichever means) to the backing queue. - %% - %% It is legal for the same message id to appear in the results - %% of multiple calls to drain_confirmed, which means that the - %% backing queue is not required to keep track of which messages - %% it has already confirmed. The confirm will be issued to the - %% publisher the first time the message id appears in the result - %% of drain_confirmed. All subsequent appearances of that message - %% id will be ignored. - {drain_confirmed, 1}, - - %% Drop messages from the head of the queue while the supplied - %% predicate returns true. - {dropwhile, 2}, - - %% Produce the next message. - {fetch, 2}, - - %% Acktags supplied are for messages which can now be forgotten - %% about. Must return 1 msg_id per Ack, in the same order as Acks. - {ack, 2}, - - %% Reinsert messages into the queue which have already been - %% delivered and were pending acknowledgement. - {requeue, 3}, - - %% How long is my queue? - {len, 1}, - - %% Is my queue empty? - {is_empty, 1}, - - %% For the next three functions, the assumption is that you're - %% monitoring something like the ingress and egress rates of the - %% queue. The RAM duration is thus the length of time represented - %% by the messages held in RAM given the current rates. If you - %% want to ignore all of this stuff, then do so, and return 0 in - %% ram_duration/1. - - %% The target is to have no more messages in RAM than indicated - %% by the duration and the current queue rates. - {set_ram_duration_target, 2}, - - %% Optionally recalculate the duration internally (likely to be - %% just update your internal rates), and report how many seconds - %% the messages in RAM represent given the current rates of the - %% queue. - {ram_duration, 1}, - - %% Should 'timeout' be called as soon as the queue process - %% can manage (either on an empty mailbox, or when a timer - %% fires)? - {needs_timeout, 1}, - - %% Called (eventually) after needs_timeout returns 'idle' or - %% 'timed'. Note this may be called more than once for each - %% 'idle' or 'timed' returned from needs_timeout. - {timeout, 1}, - - %% Called immediately before the queue hibernates. - {handle_pre_hibernate, 1}, - - %% Exists for debugging purposes, to be able to expose state via - %% rabbitmqctl list_queues backing_queue_status - {status, 1}, - - %% Passed a function to be invoked with the relevant backing - %% queue's state. Useful for when the backing queue or other - %% components need to pass functions into the backing queue. - {invoke, 3}, - - %% Called prior to a publish or publish_delivered call. Allows - %% the BQ to signal that it's already seen this message (and in - %% what capacity - i.e. was it published previously or discarded - %% previously) and thus the message should be dropped. - {is_duplicate, 2}, - - %% Called to inform the BQ about messages which have reached the - %% queue, but are not going to be further passed to BQ for some - %% reason. Note that this is may be invoked for messages for - %% which BQ:is_duplicate/2 has already returned {'published' | - %% 'discarded', BQS}. - {discard, 3} - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_backing_queue_qc.erl b/src/rabbit_backing_queue_qc.erl deleted file mode 100644 index d358a041..00000000 --- a/src/rabbit_backing_queue_qc.erl +++ /dev/null @@ -1,392 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2011-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_backing_queue_qc). --ifdef(use_proper_qc). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). --include_lib("proper/include/proper.hrl"). - --behaviour(proper_statem). - --define(BQMOD, rabbit_variable_queue). --define(QUEUE_MAXLEN, 10000). --define(TIMEOUT_LIMIT, 100). - --define(RECORD_INDEX(Key, Record), - proplists:get_value(Key, lists:zip( - record_info(fields, Record), lists:seq(2, record_info(size, Record))))). - --export([initial_state/0, command/1, precondition/2, postcondition/3, - next_state/3]). - --export([prop_backing_queue_test/0, publish_multiple/4, timeout/2]). - --record(state, {bqstate, - len, %% int - messages, %% queue of {msg_props, basic_msg} - acks, %% dict of acktag => {msg_props, basic_msg} - confirms}). %% set of msgid - -%% Initialise model - -initial_state() -> - #state{bqstate = qc_variable_queue_init(qc_test_queue()), - len = 0, - messages = queue:new(), - acks = orddict:new(), - confirms = gb_sets:new()}. - -%% Property - -prop_backing_queue_test() -> - ?FORALL(Cmds, commands(?MODULE, initial_state()), - backing_queue_test(Cmds)). - -backing_queue_test(Cmds) -> - {ok, FileSizeLimit} = - application:get_env(rabbit, msg_store_file_size_limit), - application:set_env(rabbit, msg_store_file_size_limit, 512, - infinity), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - application:set_env(rabbit, queue_index_max_journal_entries, 128, - infinity), - - {_H, #state{bqstate = BQ}, Res} = run_commands(?MODULE, Cmds), - - application:set_env(rabbit, msg_store_file_size_limit, - FileSizeLimit, infinity), - application:set_env(rabbit, queue_index_max_journal_entries, - MaxJournal, infinity), - - ?BQMOD:delete_and_terminate(shutdown, BQ), - ?WHENFAIL( - io:format("Result: ~p~n", [Res]), - aggregate(command_names(Cmds), Res =:= ok)). - -%% Commands - -%% Command frequencies are tuned so that queues are normally reasonably -%% short, but they may sometimes exceed ?QUEUE_MAXLEN. Publish-multiple -%% and purging cause extreme queue lengths, so these have lower probabilities. -%% Fetches are sufficiently frequent so that commands that need acktags -%% get decent coverage. - -command(S) -> - frequency([{10, qc_publish(S)}, - {1, qc_publish_delivered(S)}, - {1, qc_publish_multiple(S)}, %% very slow - {15, qc_fetch(S)}, %% needed for ack and requeue - {15, qc_ack(S)}, - {15, qc_requeue(S)}, - {3, qc_set_ram_duration_target(S)}, - {1, qc_ram_duration(S)}, - {1, qc_drain_confirmed(S)}, - {1, qc_dropwhile(S)}, - {1, qc_is_empty(S)}, - {1, qc_timeout(S)}, - {1, qc_purge(S)}]). - -qc_publish(#state{bqstate = BQ}) -> - {call, ?BQMOD, publish, - [qc_message(), - #message_properties{needs_confirming = frequency([{1, true}, - {20, false}]), - expiry = choose(0, 10)}, - self(), BQ]}. - -qc_publish_multiple(#state{bqstate = BQ}) -> - {call, ?MODULE, publish_multiple, - [qc_message(), #message_properties{}, BQ, - resize(?QUEUE_MAXLEN, pos_integer())]}. - -qc_publish_delivered(#state{bqstate = BQ}) -> - {call, ?BQMOD, publish_delivered, - [boolean(), qc_message(), #message_properties{}, self(), BQ]}. - -qc_fetch(#state{bqstate = BQ}) -> - {call, ?BQMOD, fetch, [boolean(), BQ]}. - -qc_ack(#state{bqstate = BQ, acks = Acks}) -> - {call, ?BQMOD, ack, [rand_choice(orddict:fetch_keys(Acks)), BQ]}. - -qc_requeue(#state{bqstate = BQ, acks = Acks}) -> - {call, ?BQMOD, requeue, - [rand_choice(orddict:fetch_keys(Acks)), fun(MsgOpts) -> MsgOpts end, BQ]}. - -qc_set_ram_duration_target(#state{bqstate = BQ}) -> - {call, ?BQMOD, set_ram_duration_target, - [oneof([0, 1, 2, resize(1000, pos_integer()), infinity]), BQ]}. - -qc_ram_duration(#state{bqstate = BQ}) -> - {call, ?BQMOD, ram_duration, [BQ]}. - -qc_drain_confirmed(#state{bqstate = BQ}) -> - {call, ?BQMOD, drain_confirmed, [BQ]}. - -qc_dropwhile(#state{bqstate = BQ}) -> - {call, ?BQMOD, dropwhile, [fun dropfun/1, BQ]}. - -qc_is_empty(#state{bqstate = BQ}) -> - {call, ?BQMOD, is_empty, [BQ]}. - -qc_timeout(#state{bqstate = BQ}) -> - {call, ?MODULE, timeout, [BQ, ?TIMEOUT_LIMIT]}. - -qc_purge(#state{bqstate = BQ}) -> - {call, ?BQMOD, purge, [BQ]}. - -%% Preconditions - -precondition(#state{acks = Acks}, {call, ?BQMOD, Fun, _Arg}) - when Fun =:= ack; Fun =:= requeue -> - orddict:size(Acks) > 0; -precondition(#state{messages = Messages}, - {call, ?BQMOD, publish_delivered, _Arg}) -> - queue:is_empty(Messages); -precondition(_S, {call, ?BQMOD, _Fun, _Arg}) -> - true; -precondition(_S, {call, ?MODULE, timeout, _Arg}) -> - true; -precondition(#state{len = Len}, {call, ?MODULE, publish_multiple, _Arg}) -> - Len < ?QUEUE_MAXLEN. - -%% Model updates - -next_state(S, BQ, {call, ?BQMOD, publish, [Msg, MsgProps, _Pid, _BQ]}) -> - #state{len = Len, messages = Messages, confirms = Confirms} = S, - MsgId = {call, erlang, element, [?RECORD_INDEX(id, basic_message), Msg]}, - NeedsConfirm = - {call, erlang, element, - [?RECORD_INDEX(needs_confirming, message_properties), MsgProps]}, - S#state{bqstate = BQ, - len = Len + 1, - messages = queue:in({MsgProps, Msg}, Messages), - confirms = case eval(NeedsConfirm) of - true -> gb_sets:add(MsgId, Confirms); - _ -> Confirms - end}; - -next_state(S, BQ, {call, _, publish_multiple, [Msg, MsgProps, _BQ, Count]}) -> - #state{len = Len, messages = Messages} = S, - Messages1 = repeat(Messages, fun(Msgs) -> - queue:in({MsgProps, Msg}, Msgs) - end, Count), - S#state{bqstate = BQ, - len = Len + Count, - messages = Messages1}; - -next_state(S, Res, - {call, ?BQMOD, publish_delivered, - [AckReq, Msg, MsgProps, _Pid, _BQ]}) -> - #state{confirms = Confirms, acks = Acks} = S, - AckTag = {call, erlang, element, [1, Res]}, - BQ1 = {call, erlang, element, [2, Res]}, - MsgId = {call, erlang, element, [?RECORD_INDEX(id, basic_message), Msg]}, - NeedsConfirm = - {call, erlang, element, - [?RECORD_INDEX(needs_confirming, message_properties), MsgProps]}, - S#state{bqstate = BQ1, - confirms = case eval(NeedsConfirm) of - true -> gb_sets:add(MsgId, Confirms); - _ -> Confirms - end, - acks = case AckReq of - true -> orddict:append(AckTag, {MsgProps, Msg}, Acks); - false -> Acks - end - }; - -next_state(S, Res, {call, ?BQMOD, fetch, [AckReq, _BQ]}) -> - #state{len = Len, messages = Messages, acks = Acks} = S, - ResultInfo = {call, erlang, element, [1, Res]}, - BQ1 = {call, erlang, element, [2, Res]}, - AckTag = {call, erlang, element, [3, ResultInfo]}, - S1 = S#state{bqstate = BQ1}, - case queue:out(Messages) of - {empty, _M2} -> - S1; - {{value, MsgProp_Msg}, M2} -> - S2 = S1#state{len = Len - 1, messages = M2}, - case AckReq of - true -> - S2#state{acks = orddict:append(AckTag, MsgProp_Msg, Acks)}; - false -> - S2 - end - end; - -next_state(S, Res, {call, ?BQMOD, ack, [AcksArg, _BQ]}) -> - #state{acks = AcksState} = S, - BQ1 = {call, erlang, element, [2, Res]}, - S#state{bqstate = BQ1, - acks = lists:foldl(fun orddict:erase/2, AcksState, AcksArg)}; - -next_state(S, Res, {call, ?BQMOD, requeue, [AcksArg, _F, _V]}) -> - #state{len = Len, messages = Messages, acks = AcksState} = S, - BQ1 = {call, erlang, element, [2, Res]}, - RequeueMsgs = lists:append([orddict:fetch(Key, AcksState) || - Key <- AcksArg]), - S#state{bqstate = BQ1, - len = Len + length(RequeueMsgs), - messages = queue:join(Messages, queue:from_list(RequeueMsgs)), - acks = lists:foldl(fun orddict:erase/2, AcksState, AcksArg)}; - -next_state(S, BQ, {call, ?BQMOD, set_ram_duration_target, _Args}) -> - S#state{bqstate = BQ}; - -next_state(S, Res, {call, ?BQMOD, ram_duration, _Args}) -> - BQ1 = {call, erlang, element, [2, Res]}, - S#state{bqstate = BQ1}; - -next_state(S, Res, {call, ?BQMOD, drain_confirmed, _Args}) -> - BQ1 = {call, erlang, element, [2, Res]}, - S#state{bqstate = BQ1}; - -next_state(S, BQ1, {call, ?BQMOD, dropwhile, _Args}) -> - #state{messages = Messages} = S, - Messages1 = drop_messages(Messages), - S#state{bqstate = BQ1, len = queue:len(Messages1), messages = Messages1}; - -next_state(S, _Res, {call, ?BQMOD, is_empty, _Args}) -> - S; - -next_state(S, BQ, {call, ?MODULE, timeout, _Args}) -> - S#state{bqstate = BQ}; - -next_state(S, Res, {call, ?BQMOD, purge, _Args}) -> - BQ1 = {call, erlang, element, [2, Res]}, - S#state{bqstate = BQ1, len = 0, messages = queue:new()}. - -%% Postconditions - -postcondition(S, {call, ?BQMOD, fetch, _Args}, Res) -> - #state{messages = Messages, len = Len, acks = Acks, confirms = Confrms} = S, - case Res of - {{MsgFetched, _IsDelivered, AckTag, RemainingLen}, _BQ} -> - {_MsgProps, Msg} = queue:head(Messages), - MsgFetched =:= Msg andalso - not orddict:is_key(AckTag, Acks) andalso - not gb_sets:is_element(AckTag, Confrms) andalso - RemainingLen =:= Len - 1; - {empty, _BQ} -> - Len =:= 0 - end; - -postcondition(S, {call, ?BQMOD, publish_delivered, _Args}, {AckTag, _BQ}) -> - #state{acks = Acks, confirms = Confrms} = S, - not orddict:is_key(AckTag, Acks) andalso - not gb_sets:is_element(AckTag, Confrms); - -postcondition(#state{len = Len}, {call, ?BQMOD, purge, _Args}, Res) -> - {PurgeCount, _BQ} = Res, - Len =:= PurgeCount; - -postcondition(#state{len = Len}, - {call, ?BQMOD, is_empty, _Args}, Res) -> - (Len =:= 0) =:= Res; - -postcondition(S, {call, ?BQMOD, drain_confirmed, _Args}, Res) -> - #state{confirms = Confirms} = S, - {ReportedConfirmed, _BQ} = Res, - lists:all(fun (M) -> - gb_sets:is_element(M, Confirms) - end, ReportedConfirmed); - -postcondition(#state{bqstate = BQ, len = Len}, {call, _M, _F, _A}, _Res) -> - ?BQMOD:len(BQ) =:= Len. - -%% Helpers - -repeat(Result, _Fun, 0) -> - Result; -repeat(Result, Fun, Times) -> - repeat(Fun(Result), Fun, Times - 1). - -publish_multiple(Msg, MsgProps, BQ, Count) -> - repeat(BQ, fun(BQ1) -> - ?BQMOD:publish(Msg, MsgProps, self(), BQ1) - end, Count). - -timeout(BQ, 0) -> - BQ; -timeout(BQ, AtMost) -> - case ?BQMOD:needs_timeout(BQ) of - false -> BQ; - _ -> timeout(?BQMOD:timeout(BQ), AtMost - 1) - end. - -qc_message_payload() -> - ?SIZED(Size, resize(Size * Size, binary())). - -qc_routing_key() -> - noshrink(binary(10)). - -qc_delivery_mode() -> - oneof([1, 2]). - -qc_message() -> - qc_message(qc_delivery_mode()). - -qc_message(DeliveryMode) -> - {call, rabbit_basic, message, [ - qc_default_exchange(), - qc_routing_key(), - #'P_basic'{delivery_mode = DeliveryMode}, - qc_message_payload()]}. - -qc_default_exchange() -> - {call, rabbit_misc, r, [<<>>, exchange, <<>>]}. - -qc_variable_queue_init(Q) -> - {call, ?BQMOD, init, - [Q, false, function(2, ok)]}. - -qc_test_q() -> - {call, rabbit_misc, r, [<<"/">>, queue, noshrink(binary(16))]}. - -qc_test_queue() -> - qc_test_queue(boolean()). - -qc_test_queue(Durable) -> - #amqqueue{name = qc_test_q(), - durable = Durable, - auto_delete = false, - arguments = [], - pid = self()}. - -rand_choice([]) -> []; -rand_choice(List) -> [lists:nth(random:uniform(length(List)), List)]. - -dropfun(Props) -> - Expiry = eval({call, erlang, element, - [?RECORD_INDEX(expiry, message_properties), Props]}), - Expiry =/= 0. - -drop_messages(Messages) -> - case queue:out(Messages) of - {empty, _} -> - Messages; - {{value, MsgProps_Msg}, M2} -> - MsgProps = {call, erlang, element, [1, MsgProps_Msg]}, - case dropfun(MsgProps) of - true -> drop_messages(M2); - false -> Messages - end - end. - --endif. diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl deleted file mode 100644 index 9cc406e7..00000000 --- a/src/rabbit_basic.erl +++ /dev/null @@ -1,197 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_basic). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([publish/1, message/3, message/4, properties/1, delivery/4]). --export([publish/4, publish/6]). --export([build_content/2, from_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(properties_input() :: - (rabbit_framing:amqp_property_record() | [{atom(), any()}])). --type(publish_result() :: - ({ok, rabbit_router:routing_result(), [pid()]} - | rabbit_types:error('not_found'))). - --type(exchange_input() :: (rabbit_types:exchange() | rabbit_exchange:name())). --type(body_input() :: (binary() | [binary()])). - --spec(publish/1 :: - (rabbit_types:delivery()) -> publish_result()). --spec(delivery/4 :: - (boolean(), boolean(), rabbit_types:message(), undefined | integer()) -> - rabbit_types:delivery()). --spec(message/4 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - properties_input(), binary()) -> rabbit_types:message()). --spec(message/3 :: - (rabbit_exchange:name(), rabbit_router:routing_key(), - rabbit_types:decoded_content()) -> - rabbit_types:ok_or_error2(rabbit_types:message(), any())). --spec(properties/1 :: - (properties_input()) -> rabbit_framing:amqp_property_record()). --spec(publish/4 :: - (exchange_input(), rabbit_router:routing_key(), properties_input(), - body_input()) -> publish_result()). --spec(publish/6 :: - (exchange_input(), rabbit_router:routing_key(), boolean(), boolean(), - properties_input(), body_input()) -> publish_result()). --spec(build_content/2 :: (rabbit_framing:amqp_property_record(), - binary() | [binary()]) -> rabbit_types:content()). --spec(from_content/1 :: (rabbit_types:content()) -> - {rabbit_framing:amqp_property_record(), binary()}). - --endif. - -%%---------------------------------------------------------------------------- - -publish(Delivery = #delivery{ - message = #basic_message{exchange_name = ExchangeName}}) -> - case rabbit_exchange:lookup(ExchangeName) of - {ok, X} -> publish(X, Delivery); - Other -> Other - end. - -delivery(Mandatory, Immediate, Message, MsgSeqNo) -> - #delivery{mandatory = Mandatory, immediate = Immediate, sender = self(), - message = Message, msg_seq_no = MsgSeqNo}. - -build_content(Properties, BodyBin) when is_binary(BodyBin) -> - build_content(Properties, [BodyBin]); - -build_content(Properties, PFR) -> - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - #content{class_id = ClassId, - properties = Properties, - properties_bin = none, - protocol = none, - payload_fragments_rev = PFR}. - -from_content(Content) -> - #content{class_id = ClassId, - properties = Props, - payload_fragments_rev = FragmentsRev} = - rabbit_binary_parser:ensure_content_decoded(Content), - %% basic.publish hasn't changed so we can just hard-code amqp_0_9_1 - {ClassId, _MethodId} = - rabbit_framing_amqp_0_9_1:method_id('basic.publish'), - {Props, list_to_binary(lists:reverse(FragmentsRev))}. - -%% This breaks the spec rule forbidding message modification -strip_header(#content{properties = #'P_basic'{headers = undefined}} - = DecodedContent, _Key) -> - DecodedContent; -strip_header(#content{properties = Props = #'P_basic'{headers = Headers}} - = DecodedContent, Key) -> - case lists:keysearch(Key, 1, Headers) of - false -> DecodedContent; - {value, Found} -> Headers0 = lists:delete(Found, Headers), - rabbit_binary_generator:clear_encoded_content( - DecodedContent#content{ - properties = Props#'P_basic'{ - headers = Headers0}}) - end. - -message(ExchangeName, RoutingKey, - #content{properties = Props} = DecodedContent) -> - try - {ok, #basic_message{ - exchange_name = ExchangeName, - content = strip_header(DecodedContent, ?DELETED_HEADER), - id = rabbit_guid:guid(), - is_persistent = is_message_persistent(DecodedContent), - routing_keys = [RoutingKey | - header_routes(Props#'P_basic'.headers)]}} - catch - {error, _Reason} = Error -> Error - end. - -message(ExchangeName, RoutingKey, RawProperties, Body) -> - Properties = properties(RawProperties), - Content = build_content(Properties, Body), - {ok, Msg} = message(ExchangeName, RoutingKey, Content), - Msg. - -properties(P = #'P_basic'{}) -> - P; -properties(P) when is_list(P) -> - %% Yes, this is O(length(P) * record_info(size, 'P_basic') / 2), - %% i.e. slow. Use the definition of 'P_basic' directly if - %% possible! - lists:foldl(fun ({Key, Value}, Acc) -> - case indexof(record_info(fields, 'P_basic'), Key) of - 0 -> throw({unknown_basic_property, Key}); - N -> setelement(N + 1, Acc, Value) - end - end, #'P_basic'{}, P). - -indexof(L, Element) -> indexof(L, Element, 1). - -indexof([], _Element, _N) -> 0; -indexof([Element | _Rest], Element, N) -> N; -indexof([_ | Rest], Element, N) -> indexof(Rest, Element, N + 1). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(Exchange, RoutingKeyBin, Properties, Body) -> - publish(Exchange, RoutingKeyBin, false, false, Properties, Body). - -%% Convenience function, for avoiding round-trips in calls across the -%% erlang distributed network. -publish(X = #exchange{name = XName}, RKey, Mandatory, Immediate, Props, Body) -> - publish(X, delivery(Mandatory, Immediate, - message(XName, RKey, properties(Props), Body), - undefined)); -publish(XName, RKey, Mandatory, Immediate, Props, Body) -> - case rabbit_exchange:lookup(XName) of - {ok, X} -> publish(X, RKey, Mandatory, Immediate, Props, Body); - Err -> Err - end. - -publish(X, Delivery) -> - {RoutingRes, DeliveredQPids} = - rabbit_router:deliver(rabbit_exchange:route(X, Delivery), Delivery), - {ok, RoutingRes, DeliveredQPids}. - -is_message_persistent(#content{properties = #'P_basic'{ - delivery_mode = Mode}}) -> - case Mode of - 1 -> false; - 2 -> true; - undefined -> false; - Other -> throw({error, {delivery_mode_unknown, Other}}) - end. - -%% Extract CC routes from headers -header_routes(undefined) -> - []; -header_routes(HeadersTable) -> - lists:append( - [case rabbit_misc:table_lookup(HeadersTable, HeaderKey) of - {array, Routes} -> [Route || {longstr, Route} <- Routes]; - undefined -> []; - {Type, _Val} -> throw({error, {unacceptable_type_in_header, - Type, - binary_to_list(HeaderKey)}}) - end || HeaderKey <- ?ROUTING_HEADERS]). diff --git a/src/rabbit_binary_generator.erl b/src/rabbit_binary_generator.erl deleted file mode 100644 index 68511a32..00000000 --- a/src/rabbit_binary_generator.erl +++ /dev/null @@ -1,337 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_generator). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - -%% EMPTY_CONTENT_BODY_FRAME_SIZE, 8 = 1 + 2 + 4 + 1 -%% - 1 byte of frame type -%% - 2 bytes of channel number -%% - 4 bytes of frame payload length -%% - 1 byte of payload trailer FRAME_END byte -%% See definition of check_empty_content_body_frame_size/0, -%% an assertion called at startup. --define(EMPTY_CONTENT_BODY_FRAME_SIZE, 8). - --export([build_simple_method_frame/3, - build_simple_content_frames/4, - build_heartbeat_frame/0]). --export([generate_table/1, encode_properties/2]). --export([check_empty_content_body_frame_size/0]). --export([ensure_content_encoded/2, clear_encoded_content/1]). --export([map_exception/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame() :: [binary()]). - --spec(build_simple_method_frame/3 :: - (rabbit_channel:channel_number(), rabbit_framing:amqp_method_record(), - rabbit_types:protocol()) - -> frame()). --spec(build_simple_content_frames/4 :: - (rabbit_channel:channel_number(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> [frame()]). --spec(build_heartbeat_frame/0 :: () -> frame()). --spec(generate_table/1 :: (rabbit_framing:amqp_table()) -> binary()). --spec(encode_properties/2 :: - ([rabbit_framing:amqp_property_type()], [any()]) -> binary()). --spec(check_empty_content_body_frame_size/0 :: () -> 'ok'). --spec(ensure_content_encoded/2 :: - (rabbit_types:content(), rabbit_types:protocol()) -> - rabbit_types:encoded_content()). --spec(clear_encoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:unencoded_content()). --spec(map_exception/3 :: (rabbit_channel:channel_number(), - rabbit_types:amqp_error() | any(), - rabbit_types:protocol()) -> - {rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record()}). - --endif. - -%%---------------------------------------------------------------------------- - -build_simple_method_frame(ChannelInt, MethodRecord, Protocol) -> - MethodFields = Protocol:encode_method_fields(MethodRecord), - MethodName = rabbit_misc:method_record_type(MethodRecord), - {ClassId, MethodId} = Protocol:method_id(MethodName), - create_frame(1, ChannelInt, [<>, MethodFields]). - -build_simple_content_frames(ChannelInt, Content, FrameMax, Protocol) -> - #content{class_id = ClassId, - properties_bin = ContentPropertiesBin, - payload_fragments_rev = PayloadFragmentsRev} = - ensure_content_encoded(Content, Protocol), - {BodySize, ContentFrames} = - build_content_frames(PayloadFragmentsRev, FrameMax, ChannelInt), - HeaderFrame = create_frame(2, ChannelInt, - [<>, - ContentPropertiesBin]), - [HeaderFrame | ContentFrames]. - -build_content_frames(FragsRev, FrameMax, ChannelInt) -> - BodyPayloadMax = if FrameMax == 0 -> - iolist_size(FragsRev); - true -> - FrameMax - ?EMPTY_CONTENT_BODY_FRAME_SIZE - end, - build_content_frames(0, [], BodyPayloadMax, [], - lists:reverse(FragsRev), BodyPayloadMax, ChannelInt). - -build_content_frames(SizeAcc, FramesAcc, _FragSizeRem, [], - [], _BodyPayloadMax, _ChannelInt) -> - {SizeAcc, lists:reverse(FramesAcc)}; -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - Frags, BodyPayloadMax, ChannelInt) - when FragSizeRem == 0 orelse Frags == [] -> - Frame = create_frame(3, ChannelInt, lists:reverse(FragAcc)), - FrameSize = BodyPayloadMax - FragSizeRem, - build_content_frames(SizeAcc + FrameSize, [Frame | FramesAcc], - BodyPayloadMax, [], Frags, BodyPayloadMax, ChannelInt); -build_content_frames(SizeAcc, FramesAcc, FragSizeRem, FragAcc, - [Frag | Frags], BodyPayloadMax, ChannelInt) -> - Size = size(Frag), - {NewFragSizeRem, NewFragAcc, NewFrags} = - if Size == 0 -> {FragSizeRem, FragAcc, Frags}; - Size =< FragSizeRem -> {FragSizeRem - Size, [Frag | FragAcc], Frags}; - true -> <> = - Frag, - {0, [Head | FragAcc], [Tail | Frags]} - end, - build_content_frames(SizeAcc, FramesAcc, NewFragSizeRem, NewFragAcc, - NewFrags, BodyPayloadMax, ChannelInt). - -build_heartbeat_frame() -> - create_frame(?FRAME_HEARTBEAT, 0, <<>>). - -create_frame(TypeInt, ChannelInt, PayloadBin) when is_binary(PayloadBin) -> - [<>, PayloadBin, <>]; -create_frame(TypeInt, ChannelInt, Payload) -> - create_frame(TypeInt, ChannelInt, list_to_binary(Payload)). - -%% table_field_to_binary supports the AMQP 0-8/0-9 standard types, S, -%% I, D, T and F, as well as the QPid extensions b, d, f, l, s, t, x, -%% and V. - -table_field_to_binary({FName, Type, Value}) -> - [short_string_to_binary(FName) | field_value_to_binary(Type, Value)]. - -field_value_to_binary(longstr, Value) -> - ["S", long_string_to_binary(Value)]; - -field_value_to_binary(signedint, Value) -> - ["I", <>]; - -field_value_to_binary(decimal, {Before, After}) -> - ["D", Before, <>]; - -field_value_to_binary(timestamp, Value) -> - ["T", <>]; - -field_value_to_binary(table, Value) -> - ["F", table_to_binary(Value)]; - -field_value_to_binary(array, Value) -> - ["A", array_to_binary(Value)]; - -field_value_to_binary(byte, Value) -> - ["b", <>]; - -field_value_to_binary(double, Value) -> - ["d", <>]; - -field_value_to_binary(float, Value) -> - ["f", <>]; - -field_value_to_binary(long, Value) -> - ["l", <>]; - -field_value_to_binary(short, Value) -> - ["s", <>]; - -field_value_to_binary(bool, Value) -> - ["t", if Value -> 1; true -> 0 end]; - -field_value_to_binary(binary, Value) -> - ["x", long_string_to_binary(Value)]; - -field_value_to_binary(void, _Value) -> - ["V"]. - -table_to_binary(Table) when is_list(Table) -> - BinTable = generate_table(Table), - [<<(size(BinTable)):32>>, BinTable]. - -array_to_binary(Array) when is_list(Array) -> - BinArray = generate_array(Array), - [<<(size(BinArray)):32>>, BinArray]. - -generate_table(Table) when is_list(Table) -> - list_to_binary(lists:map(fun table_field_to_binary/1, Table)). - -generate_array(Array) when is_list(Array) -> - list_to_binary(lists:map( - fun ({Type, Value}) -> field_value_to_binary(Type, Value) end, - Array)). - -short_string_to_binary(String) when is_binary(String) -> - Len = size(String), - if Len < 256 -> [<<(size(String)):8>>, String]; - true -> exit(content_properties_shortstr_overflow) - end; -short_string_to_binary(String) -> - StringLength = length(String), - if StringLength < 256 -> [<>, String]; - true -> exit(content_properties_shortstr_overflow) - end. - -long_string_to_binary(String) when is_binary(String) -> - [<<(size(String)):32>>, String]; -long_string_to_binary(String) -> - [<<(length(String)):32>>, String]. - -encode_properties([], []) -> - <<0, 0>>; -encode_properties(TypeList, ValueList) -> - encode_properties(0, TypeList, ValueList, 0, [], []). - -encode_properties(_Bit, [], [], FirstShortAcc, FlagsAcc, PropsAcc) -> - list_to_binary([lists:reverse(FlagsAcc), <>, lists:reverse(PropsAcc)]); -encode_properties(_Bit, [], _ValueList, _FirstShortAcc, _FlagsAcc, _PropsAcc) -> - exit(content_properties_values_overflow); -encode_properties(15, TypeList, ValueList, FirstShortAcc, FlagsAcc, PropsAcc) -> - NewFlagsShort = FirstShortAcc bor 1, % set the continuation low bit - encode_properties(0, TypeList, ValueList, 0, [<> | FlagsAcc], PropsAcc); -encode_properties(Bit, [bit | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - true -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), FlagsAcc, PropsAcc); - false -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - Other -> exit({content_properties_illegal_bit_value, Other}) - end; -encode_properties(Bit, [T | TypeList], [Value | ValueList], FirstShortAcc, FlagsAcc, PropsAcc) -> - case Value of - undefined -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc, FlagsAcc, PropsAcc); - _ -> encode_properties(Bit + 1, TypeList, ValueList, - FirstShortAcc bor (1 bsl (15 - Bit)), - FlagsAcc, - [encode_property(T, Value) | PropsAcc]) - end. - -encode_property(shortstr, String) -> - Len = size(String), - if Len < 256 -> <>; - true -> exit(content_properties_shortstr_overflow) - end; -encode_property(longstr, String) -> - Len = size(String), <>; -encode_property(octet, Int) -> - <>; -encode_property(shortint, Int) -> - <>; -encode_property(longint, Int) -> - <>; -encode_property(longlongint, Int) -> - <>; -encode_property(timestamp, Int) -> - <>; -encode_property(table, Table) -> - table_to_binary(Table). - -check_empty_content_body_frame_size() -> - %% Intended to ensure that EMPTY_CONTENT_BODY_FRAME_SIZE is - %% defined correctly. - ComputedSize = size(list_to_binary(create_frame(?FRAME_BODY, 0, <<>>))), - if ComputedSize == ?EMPTY_CONTENT_BODY_FRAME_SIZE -> - ok; - true -> - exit({incorrect_empty_content_body_frame_size, - ComputedSize, ?EMPTY_CONTENT_BODY_FRAME_SIZE}) - end. - -ensure_content_encoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}, Protocol) - when PropBin =/= none -> - Content; -ensure_content_encoded(Content = #content{properties = none, - properties_bin = PropBin, - protocol = Protocol}, Protocol1) - when PropBin =/= none -> - Props = Protocol:decode_properties(Content#content.class_id, PropBin), - Content#content{properties = Props, - properties_bin = Protocol1:encode_properties(Props), - protocol = Protocol1}; -ensure_content_encoded(Content = #content{properties = Props}, Protocol) - when Props =/= none -> - Content#content{properties_bin = Protocol:encode_properties(Props), - protocol = Protocol}. - -clear_encoded_content(Content = #content{properties_bin = none, - protocol = none}) -> - Content; -clear_encoded_content(Content = #content{properties = none}) -> - %% Only clear when we can rebuild the properties_bin later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_encoded_content(Content = #content{}) -> - Content#content{properties_bin = none, protocol = none}. - -%% NB: this function is also used by the Erlang client -map_exception(Channel, Reason, Protocol) -> - {SuggestedClose, ReplyCode, ReplyText, FailedMethod} = - lookup_amqp_exception(Reason, Protocol), - {ClassId, MethodId} = case FailedMethod of - {_, _} -> FailedMethod; - none -> {0, 0}; - _ -> Protocol:method_id(FailedMethod) - end, - case SuggestedClose orelse (Channel == 0) of - true -> {0, #'connection.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}}; - false -> {Channel, #'channel.close'{reply_code = ReplyCode, - reply_text = ReplyText, - class_id = ClassId, - method_id = MethodId}} - end. - -lookup_amqp_exception(#amqp_error{name = Name, - explanation = Expl, - method = Method}, - Protocol) -> - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(Name), - ExplBin = amqp_exception_explanation(Text, Expl), - {ShouldClose, Code, ExplBin, Method}; -lookup_amqp_exception(Other, Protocol) -> - rabbit_log:warning("Non-AMQP exit reason '~p'~n", [Other]), - {ShouldClose, Code, Text} = Protocol:lookup_amqp_exception(internal_error), - {ShouldClose, Code, Text, none}. - -amqp_exception_explanation(Text, Expl) -> - ExplBin = list_to_binary(Expl), - CompleteTextBin = <>, - if size(CompleteTextBin) > 255 -> <>; - true -> CompleteTextBin - end. diff --git a/src/rabbit_binary_parser.erl b/src/rabbit_binary_parser.erl deleted file mode 100644 index 88026bab..00000000 --- a/src/rabbit_binary_parser.erl +++ /dev/null @@ -1,165 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binary_parser). - --include("rabbit.hrl"). - --export([parse_table/1, parse_properties/2]). --export([ensure_content_decoded/1, clear_decoded_content/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(parse_table/1 :: (binary()) -> rabbit_framing:amqp_table()). --spec(parse_properties/2 :: - ([rabbit_framing:amqp_property_type()], binary()) -> [any()]). --spec(ensure_content_decoded/1 :: - (rabbit_types:content()) -> rabbit_types:decoded_content()). --spec(clear_decoded_content/1 :: - (rabbit_types:content()) -> rabbit_types:undecoded_content()). - --endif. - -%%---------------------------------------------------------------------------- - -%% parse_table supports the AMQP 0-8/0-9 standard types, S, I, D, T -%% and F, as well as the QPid extensions b, d, f, l, s, t, x, and V. - -parse_table(<<>>) -> - []; -parse_table(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{NameString, Type, Value} | parse_table(Rest)]. - -parse_array(<<>>) -> - []; -parse_array(<>) -> - {Type, Value, Rest} = parse_field_value(ValueAndRest), - [{Type, Value} | parse_array(Rest)]. - -parse_field_value(<<"S", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {longstr, ValueString, Rest}; - -parse_field_value(<<"I", Value:32/signed, Rest/binary>>) -> - {signedint, Value, Rest}; - -parse_field_value(<<"D", Before:8/unsigned, After:32/unsigned, Rest/binary>>) -> - {decimal, {Before, After}, Rest}; - -parse_field_value(<<"T", Value:64/unsigned, Rest/binary>>) -> - {timestamp, Value, Rest}; - -parse_field_value(<<"F", VLen:32/unsigned, Table:VLen/binary, Rest/binary>>) -> - {table, parse_table(Table), Rest}; - -parse_field_value(<<"A", VLen:32/unsigned, Array:VLen/binary, Rest/binary>>) -> - {array, parse_array(Array), Rest}; - -parse_field_value(<<"b", Value:8/unsigned, Rest/binary>>) -> - {byte, Value, Rest}; - -parse_field_value(<<"d", Value:64/float, Rest/binary>>) -> - {double, Value, Rest}; - -parse_field_value(<<"f", Value:32/float, Rest/binary>>) -> - {float, Value, Rest}; - -parse_field_value(<<"l", Value:64/signed, Rest/binary>>) -> - {long, Value, Rest}; - -parse_field_value(<<"s", Value:16/signed, Rest/binary>>) -> - {short, Value, Rest}; - -parse_field_value(<<"t", Value:8/unsigned, Rest/binary>>) -> - {bool, (Value /= 0), Rest}; - -parse_field_value(<<"x", VLen:32/unsigned, ValueString:VLen/binary, Rest/binary>>) -> - {binary, ValueString, Rest}; - -parse_field_value(<<"V", Rest/binary>>) -> - {void, undefined, Rest}. - - -parse_properties([], _PropBin) -> - []; -parse_properties(TypeList, PropBin) -> - FlagCount = length(TypeList), - %% round up to the nearest multiple of 15 bits, since the 16th bit - %% in each short is a "continuation" bit. - FlagsLengthBytes = trunc((FlagCount + 14) / 15) * 2, - <> = PropBin, - <> = Flags, - parse_properties(0, TypeList, [], FirstShort, Remainder, Properties). - -parse_properties(_Bit, [], Acc, _FirstShort, - _Remainder, <<>>) -> - lists:reverse(Acc); -parse_properties(_Bit, [], _Acc, _FirstShort, - _Remainder, _LeftoverBin) -> - exit(content_properties_binary_overflow); -parse_properties(15, TypeList, Acc, _OldFirstShort, - <>, Properties) -> - parse_properties(0, TypeList, Acc, NewFirstShort, Remainder, Properties); -parse_properties(Bit, [Type | TypeListRest], Acc, FirstShort, - Remainder, Properties) -> - {Value, Rest} = - if (FirstShort band (1 bsl (15 - Bit))) /= 0 -> - parse_property(Type, Properties); - Type == bit -> {false , Properties}; - true -> {undefined, Properties} - end, - parse_properties(Bit + 1, TypeListRest, [Value | Acc], FirstShort, - Remainder, Rest). - -parse_property(shortstr, <>) -> - {String, Rest}; -parse_property(longstr, <>) -> - {String, Rest}; -parse_property(octet, <>) -> - {Int, Rest}; -parse_property(shortint, <>) -> - {Int, Rest}; -parse_property(longint, <>) -> - {Int, Rest}; -parse_property(longlongint, <>) -> - {Int, Rest}; -parse_property(timestamp, <>) -> - {Int, Rest}; -parse_property(bit, Rest) -> - {true, Rest}; -parse_property(table, <>) -> - {parse_table(Table), Rest}. - -ensure_content_decoded(Content = #content{properties = Props}) - when Props =/= none -> - Content; -ensure_content_decoded(Content = #content{properties_bin = PropBin, - protocol = Protocol}) - when PropBin =/= none -> - Content#content{properties = Protocol:decode_properties( - Content#content.class_id, PropBin)}. - -clear_decoded_content(Content = #content{properties = none}) -> - Content; -clear_decoded_content(Content = #content{properties_bin = none}) -> - %% Only clear when we can rebuild the properties later in - %% accordance to the content record definition comment - maximum - %% one of properties and properties_bin can be 'none' - Content; -clear_decoded_content(Content = #content{}) -> - Content#content{properties = none}. diff --git a/src/rabbit_binding.erl b/src/rabbit_binding.erl deleted file mode 100644 index 205d5bba..00000000 --- a/src/rabbit_binding.erl +++ /dev/null @@ -1,455 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_binding). --include("rabbit.hrl"). - --export([recover/2, exists/1, add/1, add/2, remove/1, remove/2, list/1]). --export([list_for_source/1, list_for_destination/1, - list_for_source_and_destination/2]). --export([new_deletions/0, combine_deletions/2, add_deletion/3, - process_deletions/1]). --export([info_keys/0, info/1, info/2, info_all/1, info_all/2]). -%% these must all be run inside a mnesia tx --export([has_for_source/1, remove_for_source/1, - remove_for_destination/1, remove_transient_for_destination/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([key/0, deletions/0]). - --type(key() :: binary()). - --type(bind_errors() :: rabbit_types:error('source_not_found' | - 'destination_not_found' | - 'source_and_destination_not_found')). --type(bind_ok_or_error() :: 'ok' | bind_errors() | - rabbit_types:error('binding_not_found')). --type(bind_res() :: bind_ok_or_error() | rabbit_misc:const(bind_ok_or_error())). --type(inner_fun() :: - fun((rabbit_types:exchange(), - rabbit_types:exchange() | rabbit_types:amqqueue()) -> - rabbit_types:ok_or_error(rabbit_types:amqp_error()))). --type(bindings() :: [rabbit_types:binding()]). - --opaque(deletions() :: dict()). - --spec(recover/2 :: ([rabbit_exchange:name()], [rabbit_amqqueue:name()]) -> - 'ok'). --spec(exists/1 :: (rabbit_types:binding()) -> boolean() | bind_errors()). --spec(add/1 :: (rabbit_types:binding()) -> bind_res()). --spec(add/2 :: (rabbit_types:binding(), inner_fun()) -> bind_res()). --spec(remove/1 :: (rabbit_types:binding()) -> bind_res()). --spec(remove/2 :: (rabbit_types:binding(), inner_fun()) -> bind_res()). --spec(list/1 :: (rabbit_types:vhost()) -> bindings()). --spec(list_for_source/1 :: - (rabbit_types:binding_source()) -> bindings()). --spec(list_for_destination/1 :: - (rabbit_types:binding_destination()) -> bindings()). --spec(list_for_source_and_destination/2 :: - (rabbit_types:binding_source(), rabbit_types:binding_destination()) -> - bindings()). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:binding()) -> rabbit_types:infos()). --spec(info/2 :: (rabbit_types:binding(), rabbit_types:info_keys()) -> - rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(has_for_source/1 :: (rabbit_types:binding_source()) -> boolean()). --spec(remove_for_source/1 :: (rabbit_types:binding_source()) -> bindings()). --spec(remove_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(remove_transient_for_destination/1 :: - (rabbit_types:binding_destination()) -> deletions()). --spec(process_deletions/1 :: (deletions()) -> rabbit_misc:thunk('ok')). --spec(combine_deletions/2 :: (deletions(), deletions()) -> deletions()). --spec(add_deletion/3 :: (rabbit_exchange:name(), - {'undefined' | rabbit_types:exchange(), - 'deleted' | 'not_deleted', - bindings()}, deletions()) -> deletions()). --spec(new_deletions/0 :: () -> deletions()). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]). - -recover(XNames, QNames) -> - rabbit_misc:table_filter( - fun (Route) -> - mnesia:read({rabbit_semi_durable_route, Route}) =:= [] - end, - fun (Route, true) -> - ok = mnesia:write(rabbit_semi_durable_route, Route, write); - (_Route, false) -> - ok - end, rabbit_durable_route), - XNameSet = sets:from_list(XNames), - QNameSet = sets:from_list(QNames), - SelectSet = fun (#resource{kind = exchange}) -> XNameSet; - (#resource{kind = queue}) -> QNameSet - end, - [recover_semi_durable_route(R, SelectSet(Dst)) || - R = #route{binding = #binding{destination = Dst}} <- - rabbit_misc:dirty_read_all(rabbit_semi_durable_route)], - ok. - -recover_semi_durable_route(R = #route{binding = B}, ToRecover) -> - #binding{source = Src, destination = Dst} = B, - {ok, X} = rabbit_exchange:lookup(Src), - rabbit_misc:execute_mnesia_transaction( - fun () -> - Rs = mnesia:match_object(rabbit_semi_durable_route, R, read), - case Rs =/= [] andalso sets:is_element(Dst, ToRecover) of - false -> no_recover; - true -> ok = sync_transient_route(R, fun mnesia:write/3), - rabbit_exchange:serial(X) - end - end, - fun (no_recover, _) -> ok; - (_Serial, true) -> x_callback(transaction, X, add_binding, B); - (Serial, false) -> x_callback(Serial, X, add_binding, B) - end). - -exists(Binding) -> - binding_action( - Binding, fun (_Src, _Dst, B) -> - rabbit_misc:const(mnesia:read({rabbit_route, B}) /= []) - end). - -add(Binding) -> add(Binding, fun (_Src, _Dst) -> ok end). - -add(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - %% this argument is used to check queue exclusivity; - %% in general, we want to fail on that in preference to - %% anything else - case InnerFun(Src, Dst) of - ok -> case mnesia:read({rabbit_route, B}) of - [] -> add(Src, Dst, B); - [_] -> fun rabbit_misc:const_ok/0 - end; - {error, _} = Err -> rabbit_misc:const(Err) - end - end). - -add(Src, Dst, B) -> - [SrcDurable, DstDurable] = [durable(E) || E <- [Src, Dst]], - case (not (SrcDurable andalso DstDurable) orelse - mnesia:read({rabbit_durable_route, B}) =:= []) of - true -> ok = sync_route(#route{binding = B}, SrcDurable, DstDurable, - fun mnesia:write/3), - ok = rabbit_exchange:callback( - Src, add_binding, [transaction, Src, B]), - Serial = rabbit_exchange:serial(Src), - fun () -> - ok = rabbit_exchange:callback( - Src, add_binding, [Serial, Src, B]), - ok = rabbit_event:notify(binding_created, info(B)) - end; - false -> rabbit_misc:const({error, binding_not_found}) - end. - -remove(Binding) -> remove(Binding, fun (_Src, _Dst) -> ok end). - -remove(Binding, InnerFun) -> - binding_action( - Binding, - fun (Src, Dst, B) -> - case mnesia:read(rabbit_route, B, write) of - [] -> rabbit_misc:const({error, binding_not_found}); - [_] -> case InnerFun(Src, Dst) of - ok -> remove(Src, Dst, B); - {error, _} = Err -> rabbit_misc:const(Err) - end - end - end). - -remove(Src, Dst, B) -> - ok = sync_route(#route{binding = B}, durable(Src), durable(Dst), - fun mnesia:delete_object/3), - Deletions = maybe_auto_delete(B#binding.source, [B], new_deletions()), - process_deletions(Deletions). - -list(VHostPath) -> - VHostResource = rabbit_misc:r(VHostPath, '_'), - Route = #route{binding = #binding{source = VHostResource, - destination = VHostResource, - _ = '_'}, - _ = '_'}, - [B || #route{binding = B} <- mnesia:dirty_match_object(rabbit_route, - Route)]. - -list_for_source(SrcName) -> - mnesia:async_dirty( - fun() -> - Route = #route{binding = #binding{source = SrcName, _ = '_'}}, - [B || #route{binding = B} - <- mnesia:match_object(rabbit_route, Route, read)] - end). - -list_for_destination(DstName) -> - mnesia:async_dirty( - fun() -> - Route = #route{binding = #binding{destination = DstName, - _ = '_'}}, - [reverse_binding(B) || - #reverse_route{reverse_binding = B} <- - mnesia:match_object(rabbit_reverse_route, - reverse_route(Route), read)] - end). - -list_for_source_and_destination(SrcName, DstName) -> - mnesia:async_dirty( - fun() -> - Route = #route{binding = #binding{source = SrcName, - destination = DstName, - _ = '_'}}, - [B || #route{binding = B} <- mnesia:match_object(rabbit_route, - Route, read)] - end). - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, B) -> [{Item, i(Item, B)} || Item <- Items]. - -i(source_name, #binding{source = SrcName}) -> SrcName#resource.name; -i(source_kind, #binding{source = SrcName}) -> SrcName#resource.kind; -i(destination_name, #binding{destination = DstName}) -> DstName#resource.name; -i(destination_kind, #binding{destination = DstName}) -> DstName#resource.kind; -i(routing_key, #binding{key = RoutingKey}) -> RoutingKey; -i(arguments, #binding{args = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(B = #binding{}) -> infos(?INFO_KEYS, B). - -info(B = #binding{}, Items) -> infos(Items, B). - -info_all(VHostPath) -> map(VHostPath, fun (B) -> info(B) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (B) -> info(B, Items) end). - -has_for_source(SrcName) -> - Match = #route{binding = #binding{source = SrcName, _ = '_'}}, - %% we need to check for durable routes here too in case a bunch of - %% routes to durable queues have been removed temporarily as a - %% result of a node failure - contains(rabbit_route, Match) orelse - contains(rabbit_semi_durable_route, Match). - -remove_for_source(SrcName) -> - Match = #route{binding = #binding{source = SrcName, _ = '_'}}, - Routes = lists:usort( - mnesia:match_object(rabbit_route, Match, write) ++ - mnesia:match_object(rabbit_durable_route, Match, write)), - [begin - sync_route(Route, fun mnesia:delete_object/3), - Route#route.binding - end || Route <- Routes]. - -remove_for_destination(Dst) -> - remove_for_destination( - Dst, fun (R) -> sync_route(R, fun mnesia:delete_object/3) end). - -remove_transient_for_destination(Dst) -> - remove_for_destination( - Dst, fun (R) -> sync_transient_route(R, fun mnesia:delete_object/3) end). - -%%---------------------------------------------------------------------------- - -durable(#exchange{durable = D}) -> D; -durable(#amqqueue{durable = D}) -> D. - -binding_action(Binding = #binding{source = SrcName, - destination = DstName, - args = Arguments}, Fun) -> - call_with_source_and_destination( - SrcName, DstName, - fun (Src, Dst) -> - SortedArgs = rabbit_misc:sort_field_table(Arguments), - Fun(Src, Dst, Binding#binding{args = SortedArgs}) - end). - -sync_route(R, Fun) -> sync_route(R, true, true, Fun). - -sync_route(Route, true, true, Fun) -> - ok = Fun(rabbit_durable_route, Route, write), - sync_route(Route, false, true, Fun); - -sync_route(Route, false, true, Fun) -> - ok = Fun(rabbit_semi_durable_route, Route, write), - sync_route(Route, false, false, Fun); - -sync_route(Route, _SrcDurable, false, Fun) -> - sync_transient_route(Route, Fun). - -sync_transient_route(Route, Fun) -> - ok = Fun(rabbit_route, Route, write), - ok = Fun(rabbit_reverse_route, reverse_route(Route), write). - -call_with_source_and_destination(SrcName, DstName, Fun) -> - SrcTable = table_for_resource(SrcName), - DstTable = table_for_resource(DstName), - ErrFun = fun (Err) -> rabbit_misc:const({error, Err}) end, - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> - case {mnesia:read({SrcTable, SrcName}), - mnesia:read({DstTable, DstName})} of - {[Src], [Dst]} -> Fun(Src, Dst); - {[], [_] } -> ErrFun(source_not_found); - {[_], [] } -> ErrFun(destination_not_found); - {[], [] } -> ErrFun(source_and_destination_not_found) - end - end). - -table_for_resource(#resource{kind = exchange}) -> rabbit_exchange; -table_for_resource(#resource{kind = queue}) -> rabbit_queue. - -contains(Table, MatchHead) -> - continue(mnesia:select(Table, [{MatchHead, [], ['$_']}], 1, read)). - -continue('$end_of_table') -> false; -continue({[_|_], _}) -> true; -continue({[], Continuation}) -> continue(mnesia:select(Continuation)). - -remove_for_destination(DstName, DeleteFun) -> - Match = reverse_route( - #route{binding = #binding{destination = DstName, _ = '_'}}), - ReverseRoutes = mnesia:match_object(rabbit_reverse_route, Match, write), - Bindings = [begin - Route = reverse_route(ReverseRoute), - ok = DeleteFun(Route), - Route#route.binding - end || ReverseRoute <- ReverseRoutes], - group_bindings_fold(fun maybe_auto_delete/3, new_deletions(), - lists:keysort(#binding.source, Bindings)). - -%% Requires that its input binding list is sorted in exchange-name -%% order, so that the grouping of bindings (for passing to -%% group_bindings_and_auto_delete1) works properly. -group_bindings_fold(_Fun, Acc, []) -> - Acc; -group_bindings_fold(Fun, Acc, [B = #binding{source = SrcName} | Bs]) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B]). - -group_bindings_fold( - Fun, SrcName, Acc, [B = #binding{source = SrcName} | Bs], Bindings) -> - group_bindings_fold(Fun, SrcName, Acc, Bs, [B | Bindings]); -group_bindings_fold(Fun, SrcName, Acc, Removed, Bindings) -> - %% Either Removed is [], or its head has a non-matching SrcName. - group_bindings_fold(Fun, Fun(SrcName, Bindings, Acc), Removed). - -maybe_auto_delete(XName, Bindings, Deletions) -> - {Entry, Deletions1} = - case mnesia:read({rabbit_exchange, XName}) of - [] -> {{undefined, not_deleted, Bindings}, Deletions}; - [X] -> case rabbit_exchange:maybe_auto_delete(X) of - not_deleted -> - {{X, not_deleted, Bindings}, Deletions}; - {deleted, Deletions2} -> - {{X, deleted, Bindings}, - combine_deletions(Deletions, Deletions2)} - end - end, - add_deletion(XName, Entry, Deletions1). - -reverse_route(#route{binding = Binding}) -> - #reverse_route{reverse_binding = reverse_binding(Binding)}; - -reverse_route(#reverse_route{reverse_binding = Binding}) -> - #route{binding = reverse_binding(Binding)}. - -reverse_binding(#reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}; - -reverse_binding(#binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}) -> - #reverse_binding{source = SrcName, - destination = DstName, - key = Key, - args = Args}. - -%% ---------------------------------------------------------------------------- -%% Binding / exchange deletion abstraction API -%% ---------------------------------------------------------------------------- - -anything_but( NotThis, NotThis, NotThis) -> NotThis; -anything_but( NotThis, NotThis, This) -> This; -anything_but( NotThis, This, NotThis) -> This; -anything_but(_NotThis, This, This) -> This. - -new_deletions() -> dict:new(). - -add_deletion(XName, Entry, Deletions) -> - dict:update(XName, fun (Entry1) -> merge_entry(Entry1, Entry) end, - Entry, Deletions). - -combine_deletions(Deletions1, Deletions2) -> - dict:merge(fun (_XName, Entry1, Entry2) -> merge_entry(Entry1, Entry2) end, - Deletions1, Deletions2). - -merge_entry({X1, Deleted1, Bindings1}, {X2, Deleted2, Bindings2}) -> - {anything_but(undefined, X1, X2), - anything_but(not_deleted, Deleted1, Deleted2), - [Bindings1 | Bindings2]}. - -process_deletions(Deletions) -> - AugmentedDeletions = - dict:map(fun (_XName, {X, deleted, Bindings}) -> - Bs = lists:flatten(Bindings), - x_callback(transaction, X, delete, Bs), - {X, deleted, Bs, none}; - (_XName, {X, not_deleted, Bindings}) -> - Bs = lists:flatten(Bindings), - x_callback(transaction, X, remove_bindings, Bs), - {X, not_deleted, Bs, rabbit_exchange:serial(X)} - end, Deletions), - fun() -> - dict:fold(fun (XName, {X, deleted, Bs, Serial}, ok) -> - ok = rabbit_event:notify( - exchange_deleted, [{name, XName}]), - del_notify(Bs), - x_callback(Serial, X, delete, Bs); - (_XName, {X, not_deleted, Bs, Serial}, ok) -> - del_notify(Bs), - x_callback(Serial, X, remove_bindings, Bs) - end, ok, AugmentedDeletions) - end. - -del_notify(Bs) -> [rabbit_event:notify(binding_deleted, info(B)) || B <- Bs]. - -x_callback(Arg, X, F, Bs) -> ok = rabbit_exchange:callback(X, F, [Arg, X, Bs]). diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl deleted file mode 100644 index f332018d..00000000 --- a/src/rabbit_channel.erl +++ /dev/null @@ -1,1534 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --behaviour(gen_server2). - --export([start_link/10, do/2, do/3, flush/1, shutdown/1]). --export([send_command/2, deliver/4, flushed/2, confirm/2]). --export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). --export([refresh_config_all/0, emit_stats/1, ready_for_close/1]). --export([force_event_refresh/0]). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, format_message_queue/2]). - --record(ch, {state, protocol, channel, reader_pid, writer_pid, conn_pid, - limiter_pid, start_limiter_fun, tx_status, next_tag, - unacked_message_q, uncommitted_message_q, uncommitted_ack_q, - user, virtual_host, most_recently_declared_queue, - consumer_mapping, blocking, consumer_monitors, queue_collector_pid, - stats_timer, confirm_enabled, publish_seqno, unconfirmed_mq, - unconfirmed_qm, confirmed, capabilities, trace_state}). - --define(MAX_PERMISSION_CACHE_SIZE, 12). - --define(STATISTICS_KEYS, - [pid, - transactional, - confirm, - consumer_count, - messages_unacknowledged, - messages_unconfirmed, - messages_uncommitted, - acks_uncommitted, - prefetch_count, - client_flow_blocked]). - --define(CREATION_EVENT_KEYS, - [pid, - connection, - number, - user, - vhost]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([channel_number/0]). - --type(channel_number() :: non_neg_integer()). - --spec(start_link/10 :: - (channel_number(), pid(), pid(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid(), fun ((non_neg_integer()) -> rabbit_types:ok(pid()))) -> - rabbit_types:ok_pid_or_error()). --spec(do/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(do/3 :: (pid(), rabbit_framing:amqp_method_record(), - rabbit_types:maybe(rabbit_types:content())) -> 'ok'). --spec(flush/1 :: (pid()) -> 'ok'). --spec(shutdown/1 :: (pid()) -> 'ok'). --spec(send_command/2 :: (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(deliver/4 :: - (pid(), rabbit_types:ctag(), boolean(), rabbit_amqqueue:qmsg()) - -> 'ok'). --spec(flushed/2 :: (pid(), pid()) -> 'ok'). --spec(confirm/2 ::(pid(), [non_neg_integer()]) -> 'ok'). --spec(list/0 :: () -> [pid()]). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(info_all/0 :: () -> [rabbit_types:infos()]). --spec(info_all/1 :: (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(refresh_config_all/0 :: () -> 'ok'). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(ready_for_close/1 :: (pid()) -> 'ok'). --spec(force_event_refresh/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun) -> - gen_server2:start_link( - ?MODULE, [Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, - VHost, Capabilities, CollectorPid, StartLimiterFun], []). - -do(Pid, Method) -> - do(Pid, Method, none). - -do(Pid, Method, Content) -> - gen_server2:cast(Pid, {method, Method, Content}). - -flush(Pid) -> - gen_server2:call(Pid, flush, infinity). - -shutdown(Pid) -> - gen_server2:cast(Pid, terminate). - -send_command(Pid, Msg) -> - gen_server2:cast(Pid, {command, Msg}). - -deliver(Pid, ConsumerTag, AckRequired, Msg) -> - gen_server2:cast(Pid, {deliver, ConsumerTag, AckRequired, Msg}). - -flushed(Pid, QPid) -> - gen_server2:cast(Pid, {flushed, QPid}). - -confirm(Pid, MsgSeqNos) -> - gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). - -list() -> - pg2_fixed:get_members(rabbit_channels). - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server2:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server2:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -info_all() -> - rabbit_misc:filter_exit_map(fun (C) -> info(C) end, list()). - -info_all(Items) -> - rabbit_misc:filter_exit_map(fun (C) -> info(C, Items) end, list()). - -refresh_config_all() -> - rabbit_misc:upmap( - fun (C) -> gen_server2:call(C, refresh_config) end, list()), - ok. - -emit_stats(Pid) -> - gen_server2:cast(Pid, emit_stats). - -ready_for_close(Pid) -> - gen_server2:cast(Pid, ready_for_close). - -force_event_refresh() -> - rabbit_misc:filter_exit_map(fun (C) -> force_event_refresh(C) end, list()). - -force_event_refresh(Pid) -> - gen_server2:cast(Pid, force_event_refresh). - -%%--------------------------------------------------------------------------- - -init([Channel, ReaderPid, WriterPid, ConnPid, Protocol, User, VHost, - Capabilities, CollectorPid, StartLimiterFun]) -> - process_flag(trap_exit, true), - ok = pg2_fixed:join(rabbit_channels, self()), - StatsTimer = rabbit_event:init_stats_timer(), - State = #ch{state = starting, - protocol = Protocol, - channel = Channel, - reader_pid = ReaderPid, - writer_pid = WriterPid, - conn_pid = ConnPid, - limiter_pid = undefined, - start_limiter_fun = StartLimiterFun, - tx_status = none, - next_tag = 1, - unacked_message_q = queue:new(), - uncommitted_message_q = queue:new(), - uncommitted_ack_q = queue:new(), - user = User, - virtual_host = VHost, - most_recently_declared_queue = <<>>, - consumer_mapping = dict:new(), - blocking = dict:new(), - consumer_monitors = dict:new(), - queue_collector_pid = CollectorPid, - stats_timer = StatsTimer, - confirm_enabled = false, - publish_seqno = 1, - unconfirmed_mq = gb_trees:empty(), - unconfirmed_qm = gb_trees:empty(), - confirmed = [], - capabilities = Capabilities, - trace_state = rabbit_trace:init(VHost)}, - rabbit_event:notify(channel_created, infos(?CREATION_EVENT_KEYS, State)), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State) end), - {ok, State, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - info -> 9; - {info, _Items} -> 9; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - emit_stats -> 7; - {confirm, _MsgSeqNos, _QPid} -> 5; - _ -> 0 - end. - -handle_call(flush, _From, State) -> - reply(ok, State); - -handle_call(info, _From, State) -> - reply(infos(?INFO_KEYS, State), State); - -handle_call({info, Items}, _From, State) -> - try - reply({ok, infos(Items, State)}, State) - catch Error -> reply({error, Error}, State) - end; - -handle_call(refresh_config, _From, State = #ch{virtual_host = VHost}) -> - reply(ok, State#ch{trace_state = rabbit_trace:init(VHost)}); - -handle_call(_Request, _From, State) -> - noreply(State). - -handle_cast({method, Method, Content}, State) -> - try handle_method(Method, Content, State) of - {reply, Reply, NewState} -> - ok = rabbit_writer:send_command(NewState#ch.writer_pid, Reply), - noreply(NewState); - {noreply, NewState} -> - noreply(NewState); - stop -> - {stop, normal, State} - catch - exit:Reason = #amqp_error{} -> - MethodName = rabbit_misc:method_record_type(Method), - send_exception(Reason#amqp_error{method = MethodName}, State); - _:Reason -> - {stop, {Reason, erlang:get_stacktrace()}, State} - end; - -handle_cast({flushed, QPid}, State) -> - {noreply, queue_blocked(QPid, State), hibernate}; - -handle_cast(ready_for_close, State = #ch{state = closing, - writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command_sync(WriterPid, #'channel.close_ok'{}), - {stop, normal, State}; - -handle_cast(terminate, State) -> - {stop, normal, State}; - -handle_cast({command, #'basic.consume_ok'{consumer_tag = ConsumerTag} = Msg}, - State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(monitor_consumer(ConsumerTag, State)); - -handle_cast({command, Msg}, State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, Msg), - noreply(State); - -handle_cast({deliver, ConsumerTag, AckRequired, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}}}, - State = #ch{writer_pid = WriterPid, - next_tag = DeliveryTag, - trace_state = TraceState}) -> - State1 = lock_message(AckRequired, - ack_record(DeliveryTag, ConsumerTag, Msg), - State), - - M = #'basic.deliver'{consumer_tag = ConsumerTag, - delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - rabbit_writer:send_command_and_notify(WriterPid, QPid, self(), M, Content), - maybe_incr_stats([{QPid, 1}], case AckRequired of - true -> deliver; - false -> deliver_no_ack - end, State), - maybe_incr_redeliver_stats(Redelivered, QPid, State), - rabbit_trace:tap_trace_out(Msg, TraceState), - noreply(State1#ch{next_tag = DeliveryTag + 1}); - -handle_cast(emit_stats, State = #ch{stats_timer = StatsTimer}) -> - internal_emit_stats(State), - noreply([ensure_stats_timer], - State#ch{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}); - -handle_cast(force_event_refresh, State) -> - rabbit_event:notify(channel_exists, infos(?CREATION_EVENT_KEYS, State)), - noreply(State); - -handle_cast({confirm, MsgSeqNos, From}, State) -> - State1 = #ch{confirmed = C} = confirm(MsgSeqNos, From, State), - noreply([send_confirms], State1, case C of [] -> hibernate; _ -> 0 end). - -handle_info(timeout, State) -> - noreply(State); - -handle_info({'DOWN', MRef, process, QPid, Reason}, - State = #ch{consumer_monitors = ConsumerMonitors}) -> - noreply( - case dict:find(MRef, ConsumerMonitors) of - error -> - handle_publishing_queue_down(QPid, Reason, State); - {ok, ConsumerTag} -> - handle_consuming_queue_down(MRef, ConsumerTag, State) - end); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}. - -handle_pre_hibernate(State = #ch{stats_timer = StatsTimer}) -> - ok = clear_permission_cache(), - rabbit_event:if_enabled(StatsTimer, - fun () -> - internal_emit_stats( - State, [{idle_since, now()}]) - end), - StatsTimer1 = rabbit_event:stop_stats_timer(StatsTimer), - {hibernate, State#ch{stats_timer = StatsTimer1}}. - -terminate(Reason, State) -> - {Res, _State1} = notify_queues(State), - case Reason of - normal -> ok = Res; - shutdown -> ok = Res; - {shutdown, _Term} -> ok = Res; - _ -> ok - end, - rabbit_event:notify(channel_closed, [{pid, self()}]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). - -%%--------------------------------------------------------------------------- - -reply(Reply, NewState) -> reply(Reply, [], NewState). - -reply(Reply, Mask, NewState) -> reply(Reply, Mask, NewState, hibernate). - -reply(Reply, Mask, NewState, Timeout) -> - {reply, Reply, next_state(Mask, NewState), Timeout}. - -noreply(NewState) -> noreply([], NewState). - -noreply(Mask, NewState) -> noreply(Mask, NewState, hibernate). - -noreply(Mask, NewState, Timeout) -> - {noreply, next_state(Mask, NewState), Timeout}. - -next_state(Mask, State) -> - lists:foldl(fun (ensure_stats_timer, State1) -> ensure_stats_timer(State1); - (send_confirms, State1) -> send_confirms(State1) - end, State, [ensure_stats_timer, send_confirms] -- Mask). - -ensure_stats_timer(State = #ch{stats_timer = StatsTimer}) -> - ChPid = self(), - State#ch{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(ChPid) end)}. - -return_ok(State, true, _Msg) -> {noreply, State}; -return_ok(State, false, Msg) -> {reply, Msg, State}. - -ok_msg(true, _Msg) -> undefined; -ok_msg(false, Msg) -> Msg. - -send_exception(Reason, State = #ch{protocol = Protocol, - channel = Channel, - writer_pid = WriterPid, - reader_pid = ReaderPid, - conn_pid = ConnPid}) -> - {CloseChannel, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - rabbit_log:error("connection ~p, channel ~p - error:~n~p~n", - [ConnPid, Channel, Reason]), - %% something bad's happened: notify_queues may not be 'ok' - {_Result, State1} = notify_queues(State), - case CloseChannel of - Channel -> ok = rabbit_writer:send_command(WriterPid, CloseMethod), - {noreply, State1}; - _ -> ReaderPid ! {channel_exit, Channel, Reason}, - {stop, normal, State1} - end. - -return_queue_declare_ok(#resource{name = ActualName}, - NoWait, MessageCount, ConsumerCount, State) -> - return_ok(State#ch{most_recently_declared_queue = ActualName}, NoWait, - #'queue.declare_ok'{queue = ActualName, - message_count = MessageCount, - consumer_count = ConsumerCount}). - -check_resource_access(User, Resource, Perm) -> - V = {Resource, Perm}, - Cache = case get(permission_cache) of - undefined -> []; - Other -> Other - end, - CacheTail = - case lists:member(V, Cache) of - true -> lists:delete(V, Cache); - false -> ok = rabbit_access_control:check_resource_access( - User, Resource, Perm), - lists:sublist(Cache, ?MAX_PERMISSION_CACHE_SIZE - 1) - end, - put(permission_cache, [V | CacheTail]), - ok. - -clear_permission_cache() -> - erase(permission_cache), - ok. - -check_configure_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, configure). - -check_write_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, write). - -check_read_permitted(Resource, #ch{user = User}) -> - check_resource_access(User, Resource, read). - -check_user_id_header(#'P_basic'{user_id = undefined}, _) -> - ok; -check_user_id_header(#'P_basic'{user_id = Username}, - #ch{user = #user{username = Username}}) -> - ok; -check_user_id_header(#'P_basic'{user_id = Claimed}, - #ch{user = #user{username = Actual}}) -> - rabbit_misc:protocol_error( - precondition_failed, "user_id property set to '~s' but " - "authenticated user was '~s'", [Claimed, Actual]). - -check_internal_exchange(#exchange{name = Name, internal = true}) -> - rabbit_misc:protocol_error(access_refused, - "cannot publish to internal ~s", - [rabbit_misc:rs(Name)]); -check_internal_exchange(_) -> - ok. - -expand_queue_name_shortcut(<<>>, #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_queue_name_shortcut(<<>>, #ch{virtual_host = VHostPath, - most_recently_declared_queue = MRDQ}) -> - rabbit_misc:r(VHostPath, queue, MRDQ); -expand_queue_name_shortcut(QueueNameBin, #ch{virtual_host = VHostPath}) -> - rabbit_misc:r(VHostPath, queue, QueueNameBin). - -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = <<>>}) -> - rabbit_misc:protocol_error( - not_found, "no previously declared queue", []); -expand_routing_key_shortcut(<<>>, <<>>, - #ch{most_recently_declared_queue = MRDQ}) -> - MRDQ; -expand_routing_key_shortcut(_QueueNameBin, RoutingKey, _State) -> - RoutingKey. - -expand_binding(queue, DestinationNameBin, RoutingKey, State) -> - {expand_queue_name_shortcut(DestinationNameBin, State), - expand_routing_key_shortcut(DestinationNameBin, RoutingKey, State)}; -expand_binding(exchange, DestinationNameBin, RoutingKey, State) -> - {rabbit_misc:r(State#ch.virtual_host, exchange, DestinationNameBin), - RoutingKey}. - -check_not_default_exchange(#resource{kind = exchange, name = <<"">>}) -> - rabbit_misc:protocol_error( - access_refused, "operation not permitted on the default exchange", []); -check_not_default_exchange(_) -> - ok. - -%% check that an exchange/queue name does not contain the reserved -%% "amq." prefix. -%% -%% One, quite reasonable, interpretation of the spec, taken by the -%% QPid M1 Java client, is that the exclusion of "amq." prefixed names -%% only applies on actual creation, and not in the cases where the -%% entity already exists. This is how we use this function in the code -%% below. However, AMQP JIRA 123 changes that in 0-10, and possibly -%% 0-9SP1, making it illegal to attempt to declare an exchange/queue -%% with an amq.* name when passive=false. So this will need -%% revisiting. -%% -%% TODO: enforce other constraints on name. See AMQP JIRA 69. -check_name(Kind, NameBin = <<"amq.", _/binary>>) -> - rabbit_misc:protocol_error( - access_refused, - "~s name '~s' contains reserved prefix 'amq.*'",[Kind, NameBin]); -check_name(_Kind, NameBin) -> - NameBin. - -queue_blocked(QPid, State = #ch{blocking = Blocking}) -> - case dict:find(QPid, Blocking) of - error -> State; - {ok, MRef} -> true = erlang:demonitor(MRef), - Blocking1 = dict:erase(QPid, Blocking), - ok = case dict:size(Blocking1) of - 0 -> rabbit_writer:send_command( - State#ch.writer_pid, - #'channel.flow_ok'{active = false}); - _ -> ok - end, - State#ch{blocking = Blocking1} - end. - -record_confirm(undefined, _, State) -> - State; -record_confirm(MsgSeqNo, XName, State) -> - record_confirms([{MsgSeqNo, XName}], State). - -record_confirms([], State) -> - State; -record_confirms(MXs, State = #ch{confirmed = C}) -> - State#ch{confirmed = [MXs | C]}. - -confirm([], _QPid, State) -> - State; -confirm(MsgSeqNos, QPid, State) -> - {MXs, State1} = process_confirms(MsgSeqNos, QPid, false, State), - record_confirms(MXs, State1). - -process_confirms(MsgSeqNos, QPid, Nack, State = #ch{unconfirmed_mq = UMQ, - unconfirmed_qm = UQM}) -> - {MXs, UMQ1, UQM1} = - lists:foldl( - fun(MsgSeqNo, {_MXs, UMQ0, _UQM} = Acc) -> - case gb_trees:lookup(MsgSeqNo, UMQ0) of - {value, XQ} -> remove_unconfirmed(MsgSeqNo, QPid, XQ, - Acc, Nack); - none -> Acc - end - end, {[], UMQ, UQM}, MsgSeqNos), - {MXs, State#ch{unconfirmed_mq = UMQ1, unconfirmed_qm = UQM1}}. - -remove_unconfirmed(MsgSeqNo, QPid, {XName, Qs}, {MXs, UMQ, UQM}, Nack) -> - UQM1 = case gb_trees:lookup(QPid, UQM) of - {value, MsgSeqNos} -> - MsgSeqNos1 = gb_sets:delete(MsgSeqNo, MsgSeqNos), - case gb_sets:is_empty(MsgSeqNos1) of - true -> gb_trees:delete(QPid, UQM); - false -> gb_trees:update(QPid, MsgSeqNos1, UQM) - end; - none -> - UQM - end, - Qs1 = gb_sets:del_element(QPid, Qs), - %% If QPid somehow died initiating a nack, clear the message from - %% internal data-structures. Also, cleanup empty entries. - case (Nack orelse gb_sets:is_empty(Qs1)) of - true -> - {[{MsgSeqNo, XName} | MXs], gb_trees:delete(MsgSeqNo, UMQ), UQM1}; - false -> - {MXs, gb_trees:update(MsgSeqNo, {XName, Qs1}, UMQ), UQM1} - end. - -handle_method(#'channel.open'{}, _, State = #ch{state = starting}) -> - {reply, #'channel.open_ok'{}, State#ch{state = running}}; - -handle_method(#'channel.open'{}, _, _State) -> - rabbit_misc:protocol_error( - command_invalid, "second 'channel.open' seen", []); - -handle_method(_Method, _, #ch{state = starting}) -> - rabbit_misc:protocol_error(channel_error, "expected 'channel.open'", []); - -handle_method(#'channel.close_ok'{}, _, #ch{state = closing}) -> - stop; - -handle_method(#'channel.close'{}, _, State = #ch{state = closing}) -> - {reply, #'channel.close_ok'{}, State}; - -handle_method(_Method, _, State = #ch{state = closing}) -> - {noreply, State}; - -handle_method(#'channel.close'{}, _, State = #ch{reader_pid = ReaderPid}) -> - {ok, State1} = notify_queues(State), - ReaderPid ! {channel_closing, self()}, - {noreply, State1}; - -%% Even though the spec prohibits the client from sending commands -%% while waiting for the reply to a synchronous command, we generally -%% do allow this...except in the case of a pending tx.commit, where -%% it could wreak havoc. -handle_method(_Method, _, #ch{tx_status = TxStatus}) - when TxStatus =/= none andalso TxStatus =/= in_progress -> - rabbit_misc:protocol_error( - channel_error, "unexpected command while processing 'tx.commit'", []); - -handle_method(#'access.request'{},_, State) -> - {reply, #'access.request_ok'{ticket = 1}, State}; - -handle_method(#'basic.publish'{exchange = ExchangeNameBin, - routing_key = RoutingKey, - mandatory = Mandatory, - immediate = Immediate}, - Content, State = #ch{virtual_host = VHostPath, - tx_status = TxStatus, - confirm_enabled = ConfirmEnabled, - trace_state = TraceState}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_write_permitted(ExchangeName, State), - Exchange = rabbit_exchange:lookup_or_die(ExchangeName), - check_internal_exchange(Exchange), - %% We decode the content's properties here because we're almost - %% certain to want to look at delivery-mode and priority. - DecodedContent = rabbit_binary_parser:ensure_content_decoded(Content), - check_user_id_header(DecodedContent#content.properties, State), - {MsgSeqNo, State1} = - case {TxStatus, ConfirmEnabled} of - {none, false} -> {undefined, State}; - {_, _} -> SeqNo = State#ch.publish_seqno, - {SeqNo, State#ch{publish_seqno = SeqNo + 1}} - end, - case rabbit_basic:message(ExchangeName, RoutingKey, DecodedContent) of - {ok, Message} -> - rabbit_trace:tap_trace_in(Message, TraceState), - Delivery = rabbit_basic:delivery(Mandatory, Immediate, Message, - MsgSeqNo), - QNames = rabbit_exchange:route(Exchange, Delivery), - {noreply, - case TxStatus of - none -> deliver_to_queues({Delivery, QNames}, State1); - in_progress -> TMQ = State1#ch.uncommitted_message_q, - NewTMQ = queue:in({Delivery, QNames}, TMQ), - State1#ch{uncommitted_message_q = NewTMQ} - end}; - {error, Reason} -> - rabbit_misc:protocol_error(precondition_failed, - "invalid message: ~p", [Reason]) - end; - -handle_method(#'basic.nack'{delivery_tag = DeliveryTag, - multiple = Multiple, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, Multiple, State); - -handle_method(#'basic.ack'{delivery_tag = DeliveryTag, - multiple = Multiple}, - _, State = #ch{unacked_message_q = UAMQ, - tx_status = TxStatus}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - State1 = State#ch{unacked_message_q = Remaining}, - {noreply, - case TxStatus of - none -> ack(Acked, State1); - in_progress -> NewTAQ = queue:join(State1#ch.uncommitted_ack_q, Acked), - State1#ch{uncommitted_ack_q = NewTAQ} - end}; - -handle_method(#'basic.get'{queue = QueueNameBin, - no_ack = NoAck}, - _, State = #ch{writer_pid = WriterPid, - conn_pid = ConnPid, - next_tag = DeliveryTag, - trace_state = TraceState}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> rabbit_amqqueue:basic_get(Q, self(), NoAck) end) of - {ok, MessageCount, - Msg = {_QName, QPid, _MsgId, Redelivered, - #basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}}} -> - State1 = lock_message(not(NoAck), - ack_record(DeliveryTag, none, Msg), - State), - maybe_incr_stats([{QPid, 1}], case NoAck of - true -> get_no_ack; - false -> get - end, State), - maybe_incr_redeliver_stats(Redelivered, QPid, State), - rabbit_trace:tap_trace_out(Msg, TraceState), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.get_ok'{delivery_tag = DeliveryTag, - redelivered = Redelivered, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey, - message_count = MessageCount}, - Content), - {noreply, State1#ch{next_tag = DeliveryTag + 1}}; - empty -> - {reply, #'basic.get_empty'{}, State} - end; - -handle_method(#'basic.consume'{queue = QueueNameBin, - consumer_tag = ConsumerTag, - no_local = _, % FIXME: implement - no_ack = NoAck, - exclusive = ExclusiveConsume, - nowait = NoWait}, - _, State = #ch{conn_pid = ConnPid, - limiter_pid = LimiterPid, - consumer_mapping = ConsumerMapping}) -> - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - ActualConsumerTag = - case ConsumerTag of - <<>> -> rabbit_guid:binstring_guid("amq.ctag"); - Other -> Other - end, - - %% We get the queue process to send the consume_ok on our - %% behalf. This is for symmetry with basic.cancel - see - %% the comment in that method for why. - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> - {rabbit_amqqueue:basic_consume( - Q, NoAck, self(), LimiterPid, - ActualConsumerTag, ExclusiveConsume, - ok_msg(NoWait, #'basic.consume_ok'{ - consumer_tag = ActualConsumerTag})), - Q} - end) of - {ok, Q} -> - State1 = State#ch{consumer_mapping = - dict:store(ActualConsumerTag, - {Q, undefined}, - ConsumerMapping)}, - {noreply, - case NoWait of - true -> monitor_consumer(ActualConsumerTag, State1); - false -> State1 - end}; - {{error, exclusive_consume_unavailable}, _Q} -> - rabbit_misc:protocol_error( - access_refused, "~s in exclusive use", - [rabbit_misc:rs(QueueName)]) - end; - {ok, _} -> - %% Attempted reuse of consumer tag. - rabbit_misc:protocol_error( - not_allowed, "attempt to reuse consumer tag '~s'", [ConsumerTag]) - end; - -handle_method(#'basic.cancel'{consumer_tag = ConsumerTag, - nowait = NoWait}, - _, State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors}) -> - OkMsg = #'basic.cancel_ok'{consumer_tag = ConsumerTag}, - case dict:find(ConsumerTag, ConsumerMapping) of - error -> - %% Spec requires we ignore this situation. - return_ok(State, NoWait, OkMsg); - {ok, {Q, MRef}} -> - ConsumerMonitors1 = - case MRef of - undefined -> ConsumerMonitors; - _ -> true = erlang:demonitor(MRef), - dict:erase(MRef, ConsumerMonitors) - end, - NewState = State#ch{consumer_mapping = dict:erase(ConsumerTag, - ConsumerMapping), - consumer_monitors = ConsumerMonitors1}, - %% In order to ensure that no more messages are sent to - %% the consumer after the cancel_ok has been sent, we get - %% the queue process to send the cancel_ok on our - %% behalf. If we were sending the cancel_ok ourselves it - %% might overtake a message sent previously by the queue. - case rabbit_misc:with_exit_handler( - fun () -> {error, not_found} end, - fun () -> - rabbit_amqqueue:basic_cancel( - Q, self(), ConsumerTag, - ok_msg(NoWait, #'basic.cancel_ok'{ - consumer_tag = ConsumerTag})) - end) of - ok -> - {noreply, NewState}; - {error, not_found} -> - %% Spec requires we ignore this situation. - return_ok(NewState, NoWait, OkMsg) - end - end; - -handle_method(#'basic.qos'{global = true}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "global=true", []); - -handle_method(#'basic.qos'{prefetch_size = Size}, _, _State) when Size /= 0 -> - rabbit_misc:protocol_error(not_implemented, - "prefetch_size!=0 (~w)", [Size]); - -handle_method(#'basic.qos'{prefetch_count = PrefetchCount}, - _, State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case {LimiterPid, PrefetchCount} of - {undefined, 0} -> undefined; - {undefined, _} -> start_limiter(State); - {_, _} -> LimiterPid - end, - LimiterPid2 = case rabbit_limiter:limit(LimiterPid1, PrefetchCount) of - ok -> LimiterPid1; - stopped -> unlimit_queues(State) - end, - {reply, #'basic.qos_ok'{}, State#ch{limiter_pid = LimiterPid2}}; - -handle_method(#'basic.recover_async'{requeue = true}, - _, State = #ch{unacked_message_q = UAMQ, - limiter_pid = LimiterPid}) -> - OkFun = fun () -> ok end, - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - %% The Qpid python test suite incorrectly assumes - %% that messages will be requeued in their original - %% order. To keep it happy we reverse the id list - %% since we are given them in reverse order. - rabbit_misc:with_exit_handler( - OkFun, fun () -> - rabbit_amqqueue:requeue( - QPid, lists:reverse(MsgIds), self()) - end) - end, ok, UAMQ), - ok = notify_limiter(LimiterPid, UAMQ), - %% No answer required - basic.recover is the newer, synchronous - %% variant of this method - {noreply, State#ch{unacked_message_q = queue:new()}}; - -handle_method(#'basic.recover_async'{requeue = false}, _, _State) -> - rabbit_misc:protocol_error(not_implemented, "requeue=false", []); - -handle_method(#'basic.recover'{requeue = Requeue}, Content, State) -> - {noreply, State2 = #ch{writer_pid = WriterPid}} = - handle_method(#'basic.recover_async'{requeue = Requeue}, - Content, - State), - ok = rabbit_writer:send_command(WriterPid, #'basic.recover_ok'{}), - {noreply, State2}; - -handle_method(#'basic.reject'{delivery_tag = DeliveryTag, - requeue = Requeue}, - _, State) -> - reject(DeliveryTag, Requeue, false, State); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - type = TypeNameBin, - passive = false, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - nowait = NoWait, - arguments = Args}, - _, State = #ch{virtual_host = VHostPath}) -> - CheckedType = rabbit_exchange:check_type(TypeNameBin), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - X = case rabbit_exchange:lookup(ExchangeName) of - {ok, FoundX} -> FoundX; - {error, not_found} -> - check_name('exchange', ExchangeNameBin), - case rabbit_misc:r_arg(VHostPath, exchange, Args, - <<"alternate-exchange">>) of - undefined -> ok; - AName -> check_read_permitted(ExchangeName, State), - check_write_permitted(AName, State), - ok - end, - rabbit_exchange:declare(ExchangeName, - CheckedType, - Durable, - AutoDelete, - Internal, - Args) - end, - ok = rabbit_exchange:assert_equivalence(X, CheckedType, Durable, - AutoDelete, Internal, Args), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.declare'{exchange = ExchangeNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - _ = rabbit_exchange:lookup_or_die(ExchangeName), - return_ok(State, NoWait, #'exchange.declare_ok'{}); - -handle_method(#'exchange.delete'{exchange = ExchangeNameBin, - if_unused = IfUnused, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath}) -> - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - check_not_default_exchange(ExchangeName), - check_configure_permitted(ExchangeName, State), - case rabbit_exchange:delete(ExchangeName, IfUnused) of - {error, not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(ExchangeName)]); - ok -> - return_ok(State, NoWait, #'exchange.delete_ok'{}) - end; - -handle_method(#'exchange.bind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.bind_ok'{}, NoWait, State); - -handle_method(#'exchange.unbind'{destination = DestinationNameBin, - source = SourceNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - SourceNameBin, exchange, DestinationNameBin, RoutingKey, - Arguments, #'exchange.unbind_ok'{}, NoWait, State); - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = false, - durable = Durable, - exclusive = ExclusiveDeclare, - auto_delete = AutoDelete, - nowait = NoWait, - arguments = Args} = Declare, - _, State = #ch{virtual_host = VHostPath, - conn_pid = ConnPid, - queue_collector_pid = CollectorPid}) -> - Owner = case ExclusiveDeclare of - true -> ConnPid; - false -> none - end, - ActualNameBin = case QueueNameBin of - <<>> -> rabbit_guid:binstring_guid("amq.gen"); - Other -> check_name('queue', Other) - end, - QueueName = rabbit_misc:r(VHostPath, queue, ActualNameBin), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with( - QueueName, - fun (Q) -> ok = rabbit_amqqueue:assert_equivalence( - Q, Durable, AutoDelete, Args, Owner), - rabbit_amqqueue:stat(Q) - end) of - {ok, MessageCount, ConsumerCount} -> - return_queue_declare_ok(QueueName, NoWait, MessageCount, - ConsumerCount, State); - {error, not_found} -> - case rabbit_amqqueue:declare(QueueName, Durable, AutoDelete, - Args, Owner) of - {new, Q = #amqqueue{}} -> - %% We need to notify the reader within the channel - %% process so that we can be sure there are no - %% outstanding exclusive queues being declared as - %% the connection shuts down. - ok = case Owner of - none -> ok; - _ -> rabbit_queue_collector:register( - CollectorPid, Q) - end, - return_queue_declare_ok(QueueName, NoWait, 0, 0, State); - {existing, _Q} -> - %% must have been created between the stat and the - %% declare. Loop around again. - handle_method(Declare, none, State) - end - end; - -handle_method(#'queue.declare'{queue = QueueNameBin, - passive = true, - nowait = NoWait}, - _, State = #ch{virtual_host = VHostPath, - conn_pid = ConnPid}) -> - QueueName = rabbit_misc:r(VHostPath, queue, QueueNameBin), - {{ok, MessageCount, ConsumerCount}, #amqqueue{} = Q} = - rabbit_amqqueue:with_or_die( - QueueName, fun (Q) -> {rabbit_amqqueue:stat(Q), Q} end), - ok = rabbit_amqqueue:check_exclusive_access(Q, ConnPid), - return_queue_declare_ok(QueueName, NoWait, MessageCount, ConsumerCount, - State); - -handle_method(#'queue.delete'{queue = QueueNameBin, - if_unused = IfUnused, - if_empty = IfEmpty, - nowait = NoWait}, - _, State = #ch{conn_pid = ConnPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_configure_permitted(QueueName, State), - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> rabbit_amqqueue:delete(Q, IfUnused, IfEmpty) end) of - {error, in_use} -> - rabbit_misc:protocol_error( - precondition_failed, "~s in use", [rabbit_misc:rs(QueueName)]); - {error, not_empty} -> - rabbit_misc:protocol_error( - precondition_failed, "~s not empty", [rabbit_misc:rs(QueueName)]); - {ok, PurgedMessageCount} -> - return_ok(State, NoWait, - #'queue.delete_ok'{message_count = PurgedMessageCount}) - end; - -handle_method(#'queue.bind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - nowait = NoWait, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:add/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.bind_ok'{}, NoWait, State); - -handle_method(#'queue.unbind'{queue = QueueNameBin, - exchange = ExchangeNameBin, - routing_key = RoutingKey, - arguments = Arguments}, _, State) -> - binding_action(fun rabbit_binding:remove/2, - ExchangeNameBin, queue, QueueNameBin, RoutingKey, Arguments, - #'queue.unbind_ok'{}, false, State); - -handle_method(#'queue.purge'{queue = QueueNameBin, - nowait = NoWait}, - _, State = #ch{conn_pid = ConnPid}) -> - QueueName = expand_queue_name_shortcut(QueueNameBin, State), - check_read_permitted(QueueName, State), - {ok, PurgedMessageCount} = rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> rabbit_amqqueue:purge(Q) end), - return_ok(State, NoWait, - #'queue.purge_ok'{message_count = PurgedMessageCount}); - -handle_method(#'tx.select'{}, _, #ch{confirm_enabled = true}) -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from confirm to tx mode", []); - -handle_method(#'tx.select'{}, _, State) -> - {reply, #'tx.select_ok'{}, State#ch{tx_status = in_progress}}; - -handle_method(#'tx.commit'{}, _, #ch{tx_status = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.commit'{}, _, State = #ch{uncommitted_message_q = TMQ, - uncommitted_ack_q = TAQ}) -> - State1 = new_tx(ack(TAQ, rabbit_misc:queue_fold(fun deliver_to_queues/2, - State, TMQ))), - {noreply, maybe_complete_tx(State1#ch{tx_status = committing})}; - -handle_method(#'tx.rollback'{}, _, #ch{tx_status = none}) -> - rabbit_misc:protocol_error( - precondition_failed, "channel is not transactional", []); - -handle_method(#'tx.rollback'{}, _, State = #ch{unacked_message_q = UAMQ, - uncommitted_ack_q = TAQ}) -> - {reply, #'tx.rollback_ok'{}, new_tx(State#ch{unacked_message_q = - queue:join(TAQ, UAMQ)})}; - -handle_method(#'confirm.select'{}, _, #ch{tx_status = in_progress}) -> - rabbit_misc:protocol_error( - precondition_failed, "cannot switch from tx to confirm mode", []); - -handle_method(#'confirm.select'{nowait = NoWait}, _, State) -> - return_ok(State#ch{confirm_enabled = true}, - NoWait, #'confirm.select_ok'{}); - -handle_method(#'channel.flow'{active = true}, _, - State = #ch{limiter_pid = LimiterPid}) -> - LimiterPid1 = case rabbit_limiter:unblock(LimiterPid) of - ok -> LimiterPid; - stopped -> unlimit_queues(State) - end, - {reply, #'channel.flow_ok'{active = true}, - State#ch{limiter_pid = LimiterPid1}}; - -handle_method(#'channel.flow'{active = false}, _, - State = #ch{limiter_pid = LimiterPid, - consumer_mapping = Consumers}) -> - LimiterPid1 = case LimiterPid of - undefined -> start_limiter(State); - Other -> Other - end, - State1 = State#ch{limiter_pid = LimiterPid1}, - ok = rabbit_limiter:block(LimiterPid1), - case consumer_queues(Consumers) of - [] -> {reply, #'channel.flow_ok'{active = false}, State1}; - QPids -> Queues = [{QPid, erlang:monitor(process, QPid)} || - QPid <- QPids], - ok = rabbit_amqqueue:flush_all(QPids, self()), - {noreply, State1#ch{blocking = dict:from_list(Queues)}} - end; - -handle_method(_MethodRecord, _Content, _State) -> - rabbit_misc:protocol_error( - command_invalid, "unimplemented method", []). - -%%---------------------------------------------------------------------------- - -monitor_consumer(ConsumerTag, State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors, - capabilities = Capabilities}) -> - case rabbit_misc:table_lookup( - Capabilities, <<"consumer_cancel_notify">>) of - {bool, true} -> - {#amqqueue{pid = QPid} = Q, undefined} = - dict:fetch(ConsumerTag, ConsumerMapping), - MRef = erlang:monitor(process, QPid), - State#ch{consumer_mapping = - dict:store(ConsumerTag, {Q, MRef}, ConsumerMapping), - consumer_monitors = - dict:store(MRef, ConsumerTag, ConsumerMonitors)}; - _ -> - State - end. - -handle_publishing_queue_down(QPid, Reason, State = #ch{unconfirmed_qm = UQM}) -> - MsgSeqNos = case gb_trees:lookup(QPid, UQM) of - {value, MsgSet} -> gb_sets:to_list(MsgSet); - none -> [] - end, - %% We remove the MsgSeqNos from UQM before calling - %% process_confirms to prevent each MsgSeqNo being removed from - %% the set one by one which which would be inefficient - State1 = State#ch{unconfirmed_qm = gb_trees:delete_any(QPid, UQM)}, - {Nack, SendFun} = - case Reason of - Reason when Reason =:= noproc; Reason =:= noconnection; - Reason =:= normal; Reason =:= shutdown -> - {false, fun record_confirms/2}; - {shutdown, _} -> - {false, fun record_confirms/2}; - _ -> - {true, fun send_nacks/2} - end, - {MXs, State2} = process_confirms(MsgSeqNos, QPid, Nack, State1), - erase_queue_stats(QPid), - State3 = SendFun(MXs, State2), - queue_blocked(QPid, State3). - -handle_consuming_queue_down(MRef, ConsumerTag, - State = #ch{consumer_mapping = ConsumerMapping, - consumer_monitors = ConsumerMonitors, - writer_pid = WriterPid}) -> - ConsumerMapping1 = dict:erase(ConsumerTag, ConsumerMapping), - ConsumerMonitors1 = dict:erase(MRef, ConsumerMonitors), - Cancel = #'basic.cancel'{consumer_tag = ConsumerTag, - nowait = true}, - ok = rabbit_writer:send_command(WriterPid, Cancel), - State#ch{consumer_mapping = ConsumerMapping1, - consumer_monitors = ConsumerMonitors1}. - -binding_action(Fun, ExchangeNameBin, DestinationType, DestinationNameBin, - RoutingKey, Arguments, ReturnMethod, NoWait, - State = #ch{virtual_host = VHostPath, - conn_pid = ConnPid }) -> - %% FIXME: connection exception (!) on failure?? - %% (see rule named "failure" in spec-XML) - %% FIXME: don't allow binding to internal exchanges - - %% including the one named "" ! - {DestinationName, ActualRoutingKey} = - expand_binding(DestinationType, DestinationNameBin, RoutingKey, State), - check_write_permitted(DestinationName, State), - ExchangeName = rabbit_misc:r(VHostPath, exchange, ExchangeNameBin), - [check_not_default_exchange(N) || N <- [DestinationName, ExchangeName]], - check_read_permitted(ExchangeName, State), - case Fun(#binding{source = ExchangeName, - destination = DestinationName, - key = ActualRoutingKey, - args = Arguments}, - fun (_X, Q = #amqqueue{}) -> - try rabbit_amqqueue:check_exclusive_access(Q, ConnPid) - catch exit:Reason -> {error, Reason} - end; - (_X, #exchange{}) -> - ok - end) of - {error, source_not_found} -> - rabbit_misc:not_found(ExchangeName); - {error, destination_not_found} -> - rabbit_misc:not_found(DestinationName); - {error, source_and_destination_not_found} -> - rabbit_misc:protocol_error( - not_found, "no ~s and no ~s", [rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, binding_not_found} -> - rabbit_misc:protocol_error( - not_found, "no binding ~s between ~s and ~s", - [RoutingKey, rabbit_misc:rs(ExchangeName), - rabbit_misc:rs(DestinationName)]); - {error, #amqp_error{} = Error} -> - rabbit_misc:protocol_error(Error); - ok -> return_ok(State, NoWait, ReturnMethod) - end. - -basic_return(#basic_message{exchange_name = ExchangeName, - routing_keys = [RoutingKey | _CcRoutes], - content = Content}, - #ch{protocol = Protocol, writer_pid = WriterPid}, Reason) -> - {_Close, ReplyCode, ReplyText} = Protocol:lookup_amqp_exception(Reason), - ok = rabbit_writer:send_command( - WriterPid, - #'basic.return'{reply_code = ReplyCode, - reply_text = ReplyText, - exchange = ExchangeName#resource.name, - routing_key = RoutingKey}, - Content). - -reject(DeliveryTag, Requeue, Multiple, State = #ch{unacked_message_q = UAMQ}) -> - {Acked, Remaining} = collect_acks(UAMQ, DeliveryTag, Multiple), - ok = fold_per_queue( - fun (QPid, MsgIds, ok) -> - rabbit_amqqueue:reject(QPid, MsgIds, Requeue, self()) - end, ok, Acked), - ok = notify_limiter(State#ch.limiter_pid, Acked), - {noreply, State#ch{unacked_message_q = Remaining}}. - -ack_record(DeliveryTag, ConsumerTag, - _MsgStruct = {_QName, QPid, MsgId, _Redelivered, _Msg}) -> - {DeliveryTag, ConsumerTag, {QPid, MsgId}}. - -collect_acks(Q, 0, true) -> - {Q, queue:new()}; -collect_acks(Q, DeliveryTag, Multiple) -> - collect_acks(queue:new(), queue:new(), Q, DeliveryTag, Multiple). - -collect_acks(ToAcc, PrefixAcc, Q, DeliveryTag, Multiple) -> - case queue:out(Q) of - {{value, UnackedMsg = {CurrentDeliveryTag, _ConsumerTag, _Msg}}, - QTail} -> - if CurrentDeliveryTag == DeliveryTag -> - {queue:in(UnackedMsg, ToAcc), queue:join(PrefixAcc, QTail)}; - Multiple -> - collect_acks(queue:in(UnackedMsg, ToAcc), PrefixAcc, - QTail, DeliveryTag, Multiple); - true -> - collect_acks(ToAcc, queue:in(UnackedMsg, PrefixAcc), - QTail, DeliveryTag, Multiple) - end; - {empty, _} -> - rabbit_misc:protocol_error( - precondition_failed, "unknown delivery tag ~w", [DeliveryTag]) - end. - -ack(Acked, State) -> - QIncs = fold_per_queue( - fun (QPid, MsgIds, L) -> - ok = rabbit_amqqueue:ack(QPid, MsgIds, self()), - [{QPid, length(MsgIds)} | L] - end, [], Acked), - maybe_incr_stats(QIncs, ack, State), - ok = notify_limiter(State#ch.limiter_pid, Acked), - State. - -new_tx(State) -> State#ch{uncommitted_message_q = queue:new(), - uncommitted_ack_q = queue:new()}. - -notify_queues(State = #ch{state = closing}) -> - {ok, State}; -notify_queues(State = #ch{consumer_mapping = Consumers}) -> - {rabbit_amqqueue:notify_down_all(consumer_queues(Consumers), self()), - State#ch{state = closing}}. - -fold_per_queue(F, Acc0, UAQ) -> - D = rabbit_misc:queue_fold( - fun ({_DTag, _CTag, {QPid, MsgId}}, D) -> - %% dict:append would avoid the lists:reverse in - %% handle_message({recover, true}, ...). However, it - %% is significantly slower when going beyond a few - %% thousand elements. - rabbit_misc:dict_cons(QPid, MsgId, D) - end, dict:new(), UAQ), - dict:fold(fun (QPid, MsgIds, Acc) -> F(QPid, MsgIds, Acc) end, - Acc0, D). - -start_limiter(State = #ch{unacked_message_q = UAMQ, start_limiter_fun = SLF}) -> - {ok, LPid} = SLF(queue:len(UAMQ)), - ok = limit_queues(LPid, State), - LPid. - -unlimit_queues(State) -> - ok = limit_queues(undefined, State), - undefined. - -limit_queues(LPid, #ch{consumer_mapping = Consumers}) -> - rabbit_amqqueue:limit_all(consumer_queues(Consumers), self(), LPid). - -consumer_queues(Consumers) -> - lists:usort([QPid || - {_Key, {#amqqueue{pid = QPid}, _MRef}} - <- dict:to_list(Consumers)]). - -%% tell the limiter about the number of acks that have been received -%% for messages delivered to subscribed consumers, but not acks for -%% messages sent in a response to a basic.get (identified by their -%% 'none' consumer tag) -notify_limiter(undefined, _Acked) -> - ok; -notify_limiter(LimiterPid, Acked) -> - case rabbit_misc:queue_fold(fun ({_, none, _}, Acc) -> Acc; - ({_, _, _}, Acc) -> Acc + 1 - end, 0, Acked) of - 0 -> ok; - Count -> rabbit_limiter:ack(LimiterPid, Count) - end. - -deliver_to_queues({Delivery = #delivery{message = Message = #basic_message{ - exchange_name = XName}, - msg_seq_no = MsgSeqNo}, - QNames}, State) -> - {RoutingRes, DeliveredQPids} = rabbit_router:deliver(QNames, Delivery), - State1 = process_routing_result(RoutingRes, DeliveredQPids, - XName, MsgSeqNo, Message, State), - maybe_incr_stats([{XName, 1} | - [{{QPid, XName}, 1} || - QPid <- DeliveredQPids]], publish, State1), - State1. - -process_routing_result(unroutable, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State, no_route), - maybe_incr_stats([{Msg#basic_message.exchange_name, 1}], - return_unroutable, State), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(not_delivered, _, XName, MsgSeqNo, Msg, State) -> - ok = basic_return(Msg, State, no_consumers), - maybe_incr_stats([{XName, 1}], return_not_delivered, State), - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, [], XName, MsgSeqNo, _, State) -> - record_confirm(MsgSeqNo, XName, State); -process_routing_result(routed, _, _, undefined, _, State) -> - State; -process_routing_result(routed, QPids, XName, MsgSeqNo, _, State) -> - #ch{unconfirmed_mq = UMQ, unconfirmed_qm = UQM} = State, - UMQ1 = gb_trees:insert(MsgSeqNo, {XName, gb_sets:from_list(QPids)}, UMQ), - SingletonSet = gb_sets:singleton(MsgSeqNo), - UQM1 = lists:foldl( - fun (QPid, UQM2) -> - maybe_monitor(QPid), - case gb_trees:lookup(QPid, UQM2) of - {value, MsgSeqNos} -> - MsgSeqNos1 = gb_sets:insert(MsgSeqNo, MsgSeqNos), - gb_trees:update(QPid, MsgSeqNos1, UQM2); - none -> - gb_trees:insert(QPid, SingletonSet, UQM2) - end - end, UQM, QPids), - State#ch{unconfirmed_mq = UMQ1, unconfirmed_qm = UQM1}. - -lock_message(true, MsgStruct, State = #ch{unacked_message_q = UAMQ}) -> - State#ch{unacked_message_q = queue:in(MsgStruct, UAMQ)}; -lock_message(false, _MsgStruct, State) -> - State. - -send_nacks([], State) -> - State; -send_nacks(MXs, State = #ch{tx_status = none}) -> - MsgSeqNos = [ MsgSeqNo || {MsgSeqNo, _} <- MXs ], - coalesce_and_send(MsgSeqNos, - fun(MsgSeqNo, Multiple) -> - #'basic.nack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State); -send_nacks(_, State) -> - maybe_complete_tx(State#ch{tx_status = failed}). - -send_confirms(State = #ch{tx_status = none, confirmed = C}) -> - C1 = lists:append(C), - MsgSeqNos = [ begin maybe_incr_stats([{ExchangeName, 1}], confirm, State), - MsgSeqNo - end || {MsgSeqNo, ExchangeName} <- C1 ], - send_confirms(MsgSeqNos, State #ch{confirmed = []}); -send_confirms(State) -> - maybe_complete_tx(State). - -send_confirms([], State) -> - State; -send_confirms([MsgSeqNo], State = #ch{writer_pid = WriterPid}) -> - ok = rabbit_writer:send_command(WriterPid, - #'basic.ack'{delivery_tag = MsgSeqNo}), - State; -send_confirms(Cs, State) -> - coalesce_and_send(Cs, fun(MsgSeqNo, Multiple) -> - #'basic.ack'{delivery_tag = MsgSeqNo, - multiple = Multiple} - end, State). - -coalesce_and_send(MsgSeqNos, MkMsgFun, - State = #ch{writer_pid = WriterPid, unconfirmed_mq = UMQ}) -> - SMsgSeqNos = lists:usort(MsgSeqNos), - CutOff = case gb_trees:is_empty(UMQ) of - true -> lists:last(SMsgSeqNos) + 1; - false -> {SeqNo, _XQ} = gb_trees:smallest(UMQ), SeqNo - end, - {Ms, Ss} = lists:splitwith(fun(X) -> X < CutOff end, SMsgSeqNos), - case Ms of - [] -> ok; - _ -> ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(lists:last(Ms), true)) - end, - [ok = rabbit_writer:send_command( - WriterPid, MkMsgFun(SeqNo, false)) || SeqNo <- Ss], - State. - -maybe_complete_tx(State = #ch{tx_status = in_progress}) -> - State; -maybe_complete_tx(State = #ch{unconfirmed_mq = UMQ}) -> - case gb_trees:is_empty(UMQ) of - false -> State; - true -> complete_tx(State#ch{confirmed = []}) - end. - -complete_tx(State = #ch{tx_status = committing}) -> - ok = rabbit_writer:send_command(State#ch.writer_pid, #'tx.commit_ok'{}), - State#ch{tx_status = in_progress}; -complete_tx(State = #ch{tx_status = failed}) -> - {noreply, State1} = send_exception( - rabbit_misc:amqp_error( - precondition_failed, "partial tx completion", [], - 'tx.commit'), - State), - State1#ch{tx_status = in_progress}. - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, _) -> self(); -i(connection, #ch{conn_pid = ConnPid}) -> ConnPid; -i(number, #ch{channel = Channel}) -> Channel; -i(user, #ch{user = User}) -> User#user.username; -i(vhost, #ch{virtual_host = VHost}) -> VHost; -i(transactional, #ch{tx_status = TE}) -> TE =/= none; -i(confirm, #ch{confirm_enabled = CE}) -> CE; -i(consumer_count, #ch{consumer_mapping = ConsumerMapping}) -> - dict:size(ConsumerMapping); -i(messages_unconfirmed, #ch{unconfirmed_mq = UMQ}) -> - gb_trees:size(UMQ); -i(messages_unacknowledged, #ch{unacked_message_q = UAMQ}) -> - queue:len(UAMQ); -i(messages_uncommitted, #ch{uncommitted_message_q = TMQ}) -> - queue:len(TMQ); -i(acks_uncommitted, #ch{uncommitted_ack_q = TAQ}) -> - queue:len(TAQ); -i(prefetch_count, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:get_limit(LimiterPid); -i(client_flow_blocked, #ch{limiter_pid = LimiterPid}) -> - rabbit_limiter:is_blocked(LimiterPid); -i(Item, _) -> - throw({bad_argument, Item}). - -maybe_incr_redeliver_stats(true, QPid, State) -> - maybe_incr_stats([{QPid, 1}], redeliver, State); -maybe_incr_redeliver_stats(_, _, _) -> - ok. - -maybe_incr_stats(QXIncs, Measure, #ch{stats_timer = StatsTimer}) -> - case rabbit_event:stats_level(StatsTimer) of - fine -> [incr_stats(QX, Inc, Measure) || {QX, Inc} <- QXIncs]; - _ -> ok - end. - -incr_stats({QPid, _} = QX, Inc, Measure) -> - maybe_monitor(QPid), - update_measures(queue_exchange_stats, QX, Inc, Measure); -incr_stats(QPid, Inc, Measure) when is_pid(QPid) -> - maybe_monitor(QPid), - update_measures(queue_stats, QPid, Inc, Measure); -incr_stats(X, Inc, Measure) -> - update_measures(exchange_stats, X, Inc, Measure). - -maybe_monitor(QPid) -> - case get({monitoring, QPid}) of - undefined -> erlang:monitor(process, QPid), - put({monitoring, QPid}, true); - _ -> ok - end. - -update_measures(Type, QX, Inc, Measure) -> - Measures = case get({Type, QX}) of - undefined -> []; - D -> D - end, - Cur = case orddict:find(Measure, Measures) of - error -> 0; - {ok, C} -> C - end, - put({Type, QX}, - orddict:store(Measure, Cur + Inc, Measures)). - -internal_emit_stats(State) -> - internal_emit_stats(State, []). - -internal_emit_stats(State = #ch{stats_timer = StatsTimer}, Extra) -> - CoarseStats = infos(?STATISTICS_KEYS, State), - case rabbit_event:stats_level(StatsTimer) of - coarse -> - rabbit_event:notify(channel_stats, Extra ++ CoarseStats); - fine -> - FineStats = - [{channel_queue_stats, - [{QPid, Stats} || {{queue_stats, QPid}, Stats} <- get()]}, - {channel_exchange_stats, - [{X, Stats} || {{exchange_stats, X}, Stats} <- get()]}, - {channel_queue_exchange_stats, - [{QX, Stats} || - {{queue_exchange_stats, QX}, Stats} <- get()]}], - rabbit_event:notify(channel_stats, - Extra ++ CoarseStats ++ FineStats) - end. - -erase_queue_stats(QPid) -> - erase({monitoring, QPid}), - erase({queue_stats, QPid}), - [erase({queue_exchange_stats, QX}) || - {{queue_exchange_stats, QX = {QPid0, _}}, _} <- get(), QPid =:= QPid0]. diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl deleted file mode 100644 index 65ccca02..00000000 --- a/src/rabbit_channel_sup.erl +++ /dev/null @@ -1,93 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup). - --behaviour(supervisor2). - --export([start_link/1]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([start_link_args/0]). - --type(start_link_args() :: - {'tcp', rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), pid(), rabbit_types:protocol(), rabbit_types:user(), - rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()} | - {'direct', rabbit_channel:channel_number(), pid(), - rabbit_types:protocol(), rabbit_types:user(), rabbit_types:vhost(), - rabbit_framing:amqp_table(), pid()}). - --spec(start_link/1 :: (start_link_args()) -> {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link({tcp, Sock, Channel, FrameMax, ReaderPid, Protocol, User, VHost, - Capabilities, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, WriterPid} = - supervisor2:start_child( - SupPid, - {writer, {rabbit_writer, start_link, - [Sock, Channel, FrameMax, Protocol, ReaderPid]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_writer]}), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ReaderPid, WriterPid, ReaderPid, Protocol, - User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, AState} = rabbit_command_assembler:init(Protocol), - {ok, SupPid, {ChannelPid, AState}}; -start_link({direct, Channel, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector}) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, ChannelPid} = - supervisor2:start_child( - SupPid, - {channel, {rabbit_channel, start_link, - [Channel, ClientChannelPid, ClientChannelPid, ConnPid, - Protocol, User, VHost, Capabilities, Collector, - start_limiter_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), - {ok, SupPid, {ChannelPid, none}}. - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. - -start_limiter_fun(SupPid) -> - fun (UnackedCount) -> - Me = self(), - {ok, _Pid} = - supervisor2:start_child( - SupPid, - {limiter, {rabbit_limiter, start_link, [Me, UnackedCount]}, - transient, ?MAX_WAIT, worker, [rabbit_limiter]}) - end. diff --git a/src/rabbit_channel_sup_sup.erl b/src/rabbit_channel_sup_sup.erl deleted file mode 100644 index e2561c80..00000000 --- a/src/rabbit_channel_sup_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_channel_sup_sup). - --behaviour(supervisor2). - --export([start_link/0, start_channel/2]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(start_channel/2 :: (pid(), rabbit_channel_sup:start_link_args()) -> - {'ok', pid(), {pid(), any()}}). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - supervisor2:start_link(?MODULE, []). - -start_channel(Pid, Args) -> - supervisor2:start_child(Pid, [Args]). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{channel_sup, {rabbit_channel_sup, start_link, []}, - temporary, infinity, supervisor, [rabbit_channel_sup]}]}}. diff --git a/src/rabbit_client_sup.erl b/src/rabbit_client_sup.erl deleted file mode 100644 index 15e92542..00000000 --- a/src/rabbit_client_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_client_sup). - --behaviour(supervisor2). - --export([start_link/1, start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (mfa()) -> - rabbit_types:ok_pid_or_error()). --spec(start_link/2 :: ({'local', atom()}, mfa()) -> - rabbit_types:ok_pid_or_error()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(Callback) -> - supervisor2:start_link(?MODULE, Callback). - -start_link(SupName, Callback) -> - supervisor2:start_link(SupName, ?MODULE, Callback). - -init({M,F,A}) -> - {ok, {{simple_one_for_one_terminate, 0, 1}, - [{client, {M,F,A}, temporary, infinity, supervisor, [M]}]}}. diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl deleted file mode 100644 index 07036ce8..00000000 --- a/src/rabbit_command_assembler.erl +++ /dev/null @@ -1,133 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_command_assembler). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([analyze_frame/3, init/1, process/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(frame_type() :: ?FRAME_METHOD | ?FRAME_HEADER | ?FRAME_BODY | - ?FRAME_OOB_METHOD | ?FRAME_OOB_HEADER | ?FRAME_OOB_BODY | - ?FRAME_TRACE | ?FRAME_HEARTBEAT). --type(protocol() :: rabbit_framing:protocol()). --type(method() :: rabbit_framing:amqp_method_record()). --type(class_id() :: rabbit_framing:amqp_class_id()). --type(weight() :: non_neg_integer()). --type(body_size() :: non_neg_integer()). --type(content() :: rabbit_types:undecoded_content()). - --type(frame() :: - {'method', rabbit_framing:amqp_method_name(), binary()} | - {'content_header', class_id(), weight(), body_size(), binary()} | - {'content_body', binary()}). - --type(state() :: - {'method', protocol()} | - {'content_header', method(), class_id(), protocol()} | - {'content_body', method(), body_size(), class_id(), protocol()}). - --spec(analyze_frame/3 :: (frame_type(), binary(), protocol()) -> - frame() | 'heartbeat' | 'error'). - --spec(init/1 :: (protocol()) -> {ok, state()}). --spec(process/2 :: (frame(), state()) -> - {ok, state()} | - {ok, method(), state()} | - {ok, method(), content(), state()} | - {error, rabbit_types:amqp_error()}). - --endif. - -%%-------------------------------------------------------------------- - -analyze_frame(?FRAME_METHOD, - <>, - Protocol) -> - MethodName = Protocol:lookup_method_name({ClassId, MethodId}), - {method, MethodName, MethodFields}; -analyze_frame(?FRAME_HEADER, - <>, - _Protocol) -> - {content_header, ClassId, Weight, BodySize, Properties}; -analyze_frame(?FRAME_BODY, Body, _Protocol) -> - {content_body, Body}; -analyze_frame(?FRAME_HEARTBEAT, <<>>, _Protocol) -> - heartbeat; -analyze_frame(_Type, _Body, _Protocol) -> - error. - -init(Protocol) -> {ok, {method, Protocol}}. - -process({method, MethodName, FieldsBin}, {method, Protocol}) -> - try - Method = Protocol:decode_method_fields(MethodName, FieldsBin), - case Protocol:method_has_content(MethodName) of - true -> {ClassId, _MethodId} = Protocol:method_id(MethodName), - {ok, {content_header, Method, ClassId, Protocol}}; - false -> {ok, Method, {method, Protocol}} - end - catch exit:#amqp_error{} = Reason -> {error, Reason} - end; -process(_Frame, {method, _Protocol}) -> - unexpected_frame("expected method frame, " - "got non method frame instead", [], none); -process({content_header, ClassId, 0, 0, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, Method, Content, {method, Protocol}}; -process({content_header, ClassId, 0, BodySize, PropertiesBin}, - {content_header, Method, ClassId, Protocol}) -> - Content = empty_content(ClassId, PropertiesBin, Protocol), - {ok, {content_body, Method, BodySize, Content, Protocol}}; -process({content_header, HeaderClassId, 0, _BodySize, _PropertiesBin}, - {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got one for class ~w instead", - [ClassId, HeaderClassId], Method); -process(_Frame, {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got non content header frame instead", [ClassId], Method); -process({content_body, FragmentBin}, - {content_body, Method, RemainingSize, - Content = #content{payload_fragments_rev = Fragments}, Protocol}) -> - NewContent = Content#content{ - payload_fragments_rev = [FragmentBin | Fragments]}, - case RemainingSize - size(FragmentBin) of - 0 -> {ok, Method, NewContent, {method, Protocol}}; - Sz -> {ok, {content_body, Method, Sz, NewContent, Protocol}} - end; -process(_Frame, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("expected content body, " - "got non content body frame instead", [], Method). - -%%-------------------------------------------------------------------- - -empty_content(ClassId, PropertiesBin, Protocol) -> - #content{class_id = ClassId, - properties = none, - properties_bin = PropertiesBin, - protocol = Protocol, - payload_fragments_rev = []}. - -unexpected_frame(Format, Params, Method) when is_atom(Method) -> - {error, rabbit_misc:amqp_error(unexpected_frame, Format, Params, Method)}; -unexpected_frame(Format, Params, Method) -> - unexpected_frame(Format, Params, rabbit_misc:method_record_type(Method)). diff --git a/src/rabbit_connection_sup.erl b/src/rabbit_connection_sup.erl deleted file mode 100644 index 302938a2..00000000 --- a/src/rabbit_connection_sup.erl +++ /dev/null @@ -1,61 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_connection_sup). - --behaviour(supervisor2). - --export([start_link/0]). - --export([init/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid(), pid()}). - --endif. - -%%-------------------------------------------------------------------------- - -start_link() -> - {ok, SupPid} = supervisor2:start_link(?MODULE, []), - {ok, Collector} = - supervisor2:start_child( - SupPid, - {collector, {rabbit_queue_collector, start_link, []}, - intrinsic, ?MAX_WAIT, worker, [rabbit_queue_collector]}), - {ok, ChannelSupSupPid} = - supervisor2:start_child( - SupPid, - {channel_sup_sup, {rabbit_channel_sup_sup, start_link, []}, - intrinsic, infinity, supervisor, [rabbit_channel_sup_sup]}), - {ok, ReaderPid} = - supervisor2:start_child( - SupPid, - {reader, {rabbit_reader, start_link, - [ChannelSupSupPid, Collector, - rabbit_heartbeat:start_heartbeat_fun(SupPid)]}, - intrinsic, ?MAX_WAIT, worker, [rabbit_reader]}), - {ok, SupPid, ReaderPid}. - -%%-------------------------------------------------------------------------- - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl deleted file mode 100644 index 6eb1aaba..00000000 --- a/src/rabbit_control.erl +++ /dev/null @@ -1,476 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_control). --include("rabbit.hrl"). - --export([start/0, stop/0, action/5, diagnostics/1]). - --define(RPC_TIMEOUT, infinity). --define(WAIT_FOR_VM_ATTEMPTS, 5). - --define(QUIET_OPT, "-q"). --define(NODE_OPT, "-n"). --define(VHOST_OPT, "-p"). - --define(GLOBAL_QUERIES, - [{"Connections", rabbit_networking, connection_info_all, - connection_info_keys}, - {"Channels", rabbit_channel, info_all, info_keys}]). - --define(VHOST_QUERIES, - [{"Queues", rabbit_amqqueue, info_all, info_keys}, - {"Exchanges", rabbit_exchange, info_all, info_keys}, - {"Bindings", rabbit_binding, info_all, info_keys}, - {"Consumers", rabbit_amqqueue, consumers_all, consumer_info_keys}, - {"Permissions", rabbit_auth_backend_internal, list_vhost_permissions, - vhost_perms_info_keys}]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(action/5 :: - (atom(), node(), [string()], [{string(), any()}], - fun ((string(), [any()]) -> 'ok')) - -> 'ok'). --spec(diagnostics/1 :: (node()) -> [{string(), [any()]}]). --spec(usage/0 :: () -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), - {[Command0 | Args], Opts} = - case rabbit_misc:get_options([{flag, ?QUIET_OPT}, - {option, ?NODE_OPT, NodeStr}, - {option, ?VHOST_OPT, "/"}], - init:get_plain_arguments()) of - {[], _Opts} -> usage(); - CmdArgsAndOpts -> CmdArgsAndOpts - end, - Opts1 = [case K of - ?NODE_OPT -> {?NODE_OPT, rabbit_misc:makenode(V)}; - _ -> {K, V} - end || {K, V} <- Opts], - Command = list_to_atom(Command0), - Quiet = proplists:get_bool(?QUIET_OPT, Opts1), - Node = proplists:get_value(?NODE_OPT, Opts1), - Inform = case Quiet of - true -> fun (_Format, _Args1) -> ok end; - false -> fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end - end, - %% The reason we don't use a try/catch here is that rpc:call turns - %% thrown errors into normal return values - case catch action(Command, Node, Args, Opts, Inform) of - ok -> - case Quiet of - true -> ok; - false -> io:format("...done.~n") - end, - quit(0); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error("invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]), - usage(); - {error, Reason} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, {'EXIT', Reason}} -> - print_error("~p", [Reason]), - quit(2); - {badrpc, Reason} -> - print_error("unable to connect to node ~w: ~w", [Node, Reason]), - print_badrpc_diagnostics(Node), - quit(2); - Other -> - print_error("~p", [Other]), - quit(2) - end. - -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - -print_report(Node, {Descr, Module, InfoFun, KeysFun}) -> - io:format("~s:~n", [Descr]), - print_report0(Node, {Module, InfoFun, KeysFun}, []). - -print_report(Node, {Descr, Module, InfoFun, KeysFun}, VHostArg) -> - io:format("~s on ~s:~n", [Descr, VHostArg]), - print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg). - -print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> - case Results = rpc_call(Node, Module, InfoFun, VHostArg) of - [_|_] -> InfoItems = rpc_call(Node, Module, KeysFun, []), - display_row([atom_to_list(I) || I <- InfoItems]), - display_info_list(Results, InfoItems); - _ -> ok - end, - io:nl(). - -print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - -print_badrpc_diagnostics(Node) -> - [fmt_stderr(Fmt, Args) || {Fmt, Args} <- diagnostics(Node)]. - -diagnostics(Node) -> - {_NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - [{"diagnostics:", []}, - case net_adm:names(NodeHost) of - {error, EpmdReason} -> - {"- unable to connect to epmd on ~s: ~w", - [NodeHost, EpmdReason]}; - {ok, NamePorts} -> - {"- nodes and their ports on ~s: ~p", - [NodeHost, [{list_to_atom(Name), Port} || - {Name, Port} <- NamePorts]]} - end, - {"- current node: ~w", [node()]}, - case init:get_argument(home) of - {ok, [[Home]]} -> {"- current node home dir: ~s", [Home]}; - Other -> {"- no current node home dir: ~p", [Other]} - end, - {"- current node cookie hash: ~s", [rabbit_misc:cookie_hash()]}]. - -stop() -> - ok. - -usage() -> - io:format("~s", [rabbit_ctl_usage:usage()]), - quit(1). - -%%---------------------------------------------------------------------------- - -action(stop, Node, [], _Opts, Inform) -> - Inform("Stopping and halting node ~p", [Node]), - call(Node, {rabbit, stop_and_halt, []}); - -action(stop_app, Node, [], _Opts, Inform) -> - Inform("Stopping node ~p", [Node]), - call(Node, {rabbit, stop, []}); - -action(start_app, Node, [], _Opts, Inform) -> - Inform("Starting node ~p", [Node]), - call(Node, {rabbit, start, []}); - -action(reset, Node, [], _Opts, Inform) -> - Inform("Resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, reset, []}); - -action(force_reset, Node, [], _Opts, Inform) -> - Inform("Forcefully resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, force_reset, []}); - -action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); - -action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); - -action(wait, Node, [], _Opts, Inform) -> - Inform("Waiting for ~p", [Node]), - wait_for_application(Node, ?WAIT_FOR_VM_ATTEMPTS); - -action(status, Node, [], _Opts, Inform) -> - Inform("Status of node ~p", [Node]), - display_call_result(Node, {rabbit, status, []}); - -action(cluster_status, Node, [], _Opts, Inform) -> - Inform("Cluster status of node ~p", [Node]), - display_call_result(Node, {rabbit_mnesia, status, []}); - -action(environment, Node, _App, _Opts, Inform) -> - Inform("Application environment of node ~p", [Node]), - display_call_result(Node, {rabbit, environment, []}); - -action(rotate_logs, Node, [], _Opts, Inform) -> - Inform("Reopening logs for node ~p", [Node]), - call(Node, {rabbit, rotate_logs, [""]}); -action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), - call(Node, {rabbit, rotate_logs, Args}); - -action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> - Inform("Closing connection ~s", [PidStr]), - rpc_call(Node, rabbit_networking, close_connection, - [rabbit_misc:string_to_pid(PidStr), Explanation]); - -action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> - Inform("Creating user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, add_user, Args}); - -action(delete_user, Node, Args = [_Username], _Opts, Inform) -> - Inform("Deleting user ~p", Args), - call(Node, {rabbit_auth_backend_internal, delete_user, Args}); - -action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> - Inform("Changing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, change_password, Args}); - -action(clear_password, Node, Args = [Username], _Opts, Inform) -> - Inform("Clearing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_password, Args}); - -action(set_user_tags, Node, [Username | TagsStr], _Opts, Inform) -> - Tags = [list_to_atom(T) || T <- TagsStr], - Inform("Setting tags for user ~p to ~p", [Username, Tags]), - rpc_call(Node, rabbit_auth_backend_internal, set_tags, - [list_to_binary(Username), Tags]); - -action(list_users, Node, [], _Opts, Inform) -> - Inform("Listing users", []), - display_info_list( - call(Node, {rabbit_auth_backend_internal, list_users, []}), - rabbit_auth_backend_internal:user_info_keys()); - -action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Creating vhost ~p", Args), - call(Node, {rabbit_vhost, add, Args}); - -action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Deleting vhost ~p", Args), - call(Node, {rabbit_vhost, delete, Args}); - -action(list_vhosts, Node, Args, _Opts, Inform) -> - Inform("Listing vhosts", []), - ArgAtoms = default_if_empty(Args, [name]), - display_info_list(call(Node, {rabbit_vhost, info_all, []}), ArgAtoms); - -action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> - Inform("Listing permissions for user ~p", Args), - display_info_list(call(Node, {rabbit_auth_backend_internal, - list_user_permissions, Args}), - rabbit_auth_backend_internal:user_perms_info_keys()); - -action(list_queues, Node, Args, Opts, Inform) -> - Inform("Listing queues", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, messages]), - display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_exchanges, Node, Args, Opts, Inform) -> - Inform("Listing exchanges", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, type]), - display_info_list(rpc_call(Node, rabbit_exchange, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_bindings, Node, Args, Opts, Inform) -> - Inform("Listing bindings", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]), - display_info_list(rpc_call(Node, rabbit_binding, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_connections, Node, Args, _Opts, Inform) -> - Inform("Listing connections", []), - ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), - display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, - [ArgAtoms]), - ArgAtoms); - -action(list_channels, Node, Args, _Opts, Inform) -> - Inform("Listing channels", []), - ArgAtoms = default_if_empty(Args, [pid, user, consumer_count, - messages_unacknowledged]), - display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); - -action(list_consumers, Node, _Args, Opts, Inform) -> - Inform("Listing consumers", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - display_info_list(rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg]), - rabbit_amqqueue:consumer_info_keys()); - -action(trace_on, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Starting tracing for vhost ~p", [VHost]), - rpc_call(Node, rabbit_trace, start, [list_to_binary(VHost)]); - -action(trace_off, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Stopping tracing for vhost ~p", [VHost]), - rpc_call(Node, rabbit_trace, stop, [list_to_binary(VHost)]); - -action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, [Username], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, clear_permissions, - [Username, VHost]}); - -action(list_permissions, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Listing permissions in vhost ~p", [VHost]), - display_info_list(call(Node, {rabbit_auth_backend_internal, - list_vhost_permissions, [VHost]}), - rabbit_auth_backend_internal:vhost_perms_info_keys()); - -action(report, Node, _Args, _Opts, Inform) -> - io:format("Reporting server status on ~p~n~n", [erlang:universaltime()]), - [begin ok = action(Action, N, [], [], Inform), io:nl() end || - N <- unsafe_rpc(Node, rabbit_mnesia, running_clustered_nodes, []), - Action <- [status, cluster_status, environment]], - VHosts = unsafe_rpc(Node, rabbit_vhost, list, []), - [print_report(Node, Q) || Q <- ?GLOBAL_QUERIES], - [print_report(Node, Q, [V]) || Q <- ?VHOST_QUERIES, V <- VHosts], - io:format("End of server status report~n"), - ok. - -%%---------------------------------------------------------------------------- - -wait_for_application(Node, Attempts) -> - case rpc_call(Node, application, which_applications, [infinity]) of - {badrpc, _} = E -> case Attempts of - 0 -> E; - _ -> wait_for_application0(Node, Attempts - 1) - end; - Apps -> case proplists:is_defined(rabbit, Apps) of - %% We've seen the node up; if it goes down - %% die immediately. - true -> ok; - false -> wait_for_application0(Node, 0) - end - end. - -wait_for_application0(Node, Attempts) -> - timer:sleep(1000), - wait_for_application(Node, Attempts). - -default_if_empty(List, Default) when is_list(List) -> - if List == [] -> Default; - true -> [list_to_atom(X) || X <- List] - end. - -display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach( - fun (Result) -> display_row( - [format_info_item(proplists:get_value(X, Result)) || - X <- InfoItemKeys]) - end, Results), - ok; -display_info_list(Other, _) -> - Other. - -display_row(Row) -> - io:fwrite(string:join(Row, "\t")), - io:nl(). - --define(IS_U8(X), (X >= 0 andalso X =< 255)). --define(IS_U16(X), (X >= 0 andalso X =< 65535)). - -format_info_item(#resource{name = Name}) -> - escape(Name); -format_info_item({N1, N2, N3, N4} = Value) when - ?IS_U8(N1), ?IS_U8(N2), ?IS_U8(N3), ?IS_U8(N4) -> - rabbit_misc:ntoa(Value); -format_info_item({K1, K2, K3, K4, K5, K6, K7, K8} = Value) when - ?IS_U16(K1), ?IS_U16(K2), ?IS_U16(K3), ?IS_U16(K4), - ?IS_U16(K5), ?IS_U16(K6), ?IS_U16(K7), ?IS_U16(K8) -> - rabbit_misc:ntoa(Value); -format_info_item(Value) when is_pid(Value) -> - rabbit_misc:pid_to_string(Value); -format_info_item(Value) when is_binary(Value) -> - escape(Value); -format_info_item(Value) when is_atom(Value) -> - escape(atom_to_list(Value)); -format_info_item([{TableEntryKey, TableEntryType, _TableEntryValue} | _] = - Value) when is_binary(TableEntryKey) andalso - is_atom(TableEntryType) -> - io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); -format_info_item([T | _] = Value) - when is_tuple(T) orelse is_pid(T) orelse is_binary(T) orelse is_atom(T) orelse - is_list(T) -> - "[" ++ - lists:nthtail(2, lists:append( - [", " ++ format_info_item(E) || E <- Value])) ++ "]"; -format_info_item(Value) -> - io_lib:format("~w", [Value]). - -display_call_result(Node, MFA) -> - case call(Node, MFA) of - {badrpc, _} = Res -> throw(Res); - Res -> io:format("~p~n", [Res]), - ok - end. - -unsafe_rpc(Node, Mod, Fun, Args) -> - case rpc_call(Node, Mod, Fun, Args) of - {badrpc, _} = Res -> throw(Res); - Normal -> Normal - end. - -call(Node, {Mod, Fun, Args}) -> - rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). - -rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). - -%% escape does C-style backslash escaping of non-printable ASCII -%% characters. We don't escape characters above 127, since they may -%% form part of UTF-8 strings. - -escape(Atom) when is_atom(Atom) -> escape(atom_to_list(Atom)); -escape(Bin) when is_binary(Bin) -> escape(binary_to_list(Bin)); -escape(L) when is_list(L) -> escape_char(lists:reverse(L), []). - -escape_char([$\\ | T], Acc) -> - escape_char(T, [$\\, $\\ | Acc]); -escape_char([X | T], Acc) when X >= 32, X /= 127 -> - escape_char(T, [X | Acc]); -escape_char([X | T], Acc) -> - escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), - $0 + (X band 7) | Acc]); -escape_char([], Acc) -> - Acc. - -prettify_amqp_table(Table) -> - [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. - -prettify_typed_amqp_value(longstr, Value) -> escape(Value); -prettify_typed_amqp_value(table, Value) -> prettify_amqp_table(Value); -prettify_typed_amqp_value(array, Value) -> [prettify_typed_amqp_value(T, V) || - {T, V} <- Value]; -prettify_typed_amqp_value(_Type, Value) -> Value. - -%% the slower shutdown on windows required to flush stdout -quit(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status) - end. diff --git a/src/rabbit_direct.erl b/src/rabbit_direct.erl deleted file mode 100644 index d4a2d70d..00000000 --- a/src/rabbit_direct.erl +++ /dev/null @@ -1,100 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_direct). - --export([boot/0, connect/5, start_channel/8, disconnect/1, - force_event_refresh/0]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(boot/0 :: () -> 'ok'). --spec(connect/5 :: (rabbit_types:username(), rabbit_types:vhost(), - rabbit_types:protocol(), rabbit_event:event_props(), - pid()) -> - {'ok', {rabbit_types:user(), - rabbit_framing:amqp_table()}}). --spec(start_channel/8 :: - (rabbit_channel:channel_number(), pid(), pid(), rabbit_types:protocol(), - rabbit_types:user(), rabbit_types:vhost(), rabbit_framing:amqp_table(), - pid()) -> {'ok', pid()}). - --spec(disconnect/1 :: (rabbit_event:event_props()) -> 'ok'). --spec(force_event_refresh/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - {ok, _} = - supervisor2:start_child( - rabbit_sup, - {rabbit_direct_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_direct_client_sup}, - {rabbit_channel_sup, start_link, []}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%%---------------------------------------------------------------------------- - -connect(Username, VHost, Protocol, Infos, Pid) -> - case lists:keymember(rabbit, 1, application:which_applications()) of - true -> - case rabbit_access_control:check_user_login(Username, []) of - {ok, User} -> - try rabbit_access_control:check_vhost_access(User, VHost) of - ok -> pg2_fixed:join(rabbit_direct_connections, Pid), - rabbit_event:notify(connection_created, Infos), - {ok, {User, - rabbit_reader:server_properties(Protocol)}} - catch - exit:#amqp_error{name = access_refused} -> - {error, access_refused} - end; - {refused, _Msg, _Args} -> - {error, auth_failure} - end; - false -> - {error, broker_not_found_on_node} - end. - -start_channel(Number, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector) -> - {ok, _, {ChannelPid, _}} = - supervisor2:start_child( - rabbit_direct_client_sup, - [{direct, Number, ClientChannelPid, ConnPid, Protocol, User, VHost, - Capabilities, Collector}]), - {ok, ChannelPid}. - -disconnect(Infos) -> - rabbit_event:notify(connection_closed, Infos). - -force_event_refresh() -> - rabbit_misc:filter_exit_map(fun (C) -> force_event_refresh(C) end, list()). - -list() -> pg2_fixed:get_members(rabbit_direct_connections). - -force_event_refresh(Pid) -> - [{created_event, Ev}] = - gen_server:call(Pid, {info, [created_event]}, infinity), - rabbit_event:notify(connection_exists, Ev). diff --git a/src/rabbit_error_logger.erl b/src/rabbit_error_logger.erl deleted file mode 100644 index 93aad9e3..00000000 --- a/src/rabbit_error_logger.erl +++ /dev/null @@ -1,78 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(LOG_EXCH_NAME, <<"amq.rabbitmq.log">>). - --behaviour(gen_event). - --export([boot/0]). - --export([init/1, terminate/2, code_change/3, handle_call/2, handle_event/2, - handle_info/2]). - -boot() -> - {ok, DefaultVHost} = application:get_env(default_vhost), - ok = error_logger:add_report_handler(?MODULE, [DefaultVHost]). - -init([DefaultVHost]) -> - #exchange{} = rabbit_exchange:declare( - rabbit_misc:r(DefaultVHost, exchange, ?LOG_EXCH_NAME), - topic, true, false, false, []), - {ok, #resource{virtual_host = DefaultVHost, - kind = exchange, - name = ?LOG_EXCH_NAME}}. - -terminate(_Arg, _State) -> - terminated_ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_call(_Request, State) -> - {ok, not_understood, State}. - -handle_event({Kind, _Gleader, {_Pid, Format, Data}}, State) -> - ok = publish(Kind, Format, Data, State), - {ok, State}; -handle_event(_Event, State) -> - {ok, State}. - -handle_info(_Info, State) -> - {ok, State}. - -publish(error, Format, Data, State) -> - publish1(<<"error">>, Format, Data, State); -publish(warning_msg, Format, Data, State) -> - publish1(<<"warning">>, Format, Data, State); -publish(info_msg, Format, Data, State) -> - publish1(<<"info">>, Format, Data, State); -publish(_Other, _Format, _Data, _State) -> - ok. - -publish1(RoutingKey, Format, Data, LogExch) -> - %% 0-9-1 says the timestamp is a "64 bit POSIX timestamp". That's - %% second resolution, not millisecond. - Timestamp = rabbit_misc:now_ms() div 1000, - {ok, _RoutingRes, _DeliveredQPids} = - rabbit_basic:publish(LogExch, RoutingKey, false, false, - #'P_basic'{content_type = <<"text/plain">>, - timestamp = Timestamp}, - list_to_binary(io_lib:format(Format, Data))), - ok. diff --git a/src/rabbit_error_logger_file_h.erl b/src/rabbit_error_logger_file_h.erl deleted file mode 100644 index 7e9ebc4f..00000000 --- a/src/rabbit_error_logger_file_h.erl +++ /dev/null @@ -1,68 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_error_logger_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_error_logger_file_h is a wrapper around the error_logger_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers in log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without performing -%% log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - error_logger_file_h:init(File). - -handle_event(Event, State) -> - error_logger_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - error_logger_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - error_logger_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - error_logger_file_h:terminate(Reason, State). - -code_change(OldVsn, State, Extra) -> - error_logger_file_h:code_change(OldVsn, State, Extra). diff --git a/src/rabbit_event.erl b/src/rabbit_event.erl deleted file mode 100644 index 468f9293..00000000 --- a/src/rabbit_event.erl +++ /dev/null @@ -1,139 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_event). - --include("rabbit.hrl"). - --export([start_link/0]). --export([init_stats_timer/0, ensure_stats_timer/2, stop_stats_timer/1]). --export([reset_stats_timer/1]). --export([stats_level/1, if_enabled/2]). --export([notify/2, notify_if/3]). - -%%---------------------------------------------------------------------------- - --record(state, {level, interval, timer}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([event_type/0, event_props/0, event_timestamp/0, event/0]). - --type(event_type() :: atom()). --type(event_props() :: term()). --type(event_timestamp() :: - {non_neg_integer(), non_neg_integer(), non_neg_integer()}). - --type(event() :: #event { - type :: event_type(), - props :: event_props(), - timestamp :: event_timestamp() - }). - --type(level() :: 'none' | 'coarse' | 'fine'). - --opaque(state() :: #state { - level :: level(), - interval :: integer(), - timer :: atom() - }). - --type(timer_fun() :: fun (() -> 'ok')). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(init_stats_timer/0 :: () -> state()). --spec(ensure_stats_timer/2 :: (state(), timer_fun()) -> state()). --spec(stop_stats_timer/1 :: (state()) -> state()). --spec(reset_stats_timer/1 :: (state()) -> state()). --spec(stats_level/1 :: (state()) -> level()). --spec(if_enabled/2 :: (state(), timer_fun()) -> 'ok'). --spec(notify/2 :: (event_type(), event_props()) -> 'ok'). --spec(notify_if/3 :: (boolean(), event_type(), event_props()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_event:start_link({local, ?MODULE}). - -%% The idea is, for each stat-emitting object: -%% -%% On startup: -%% Timer = init_stats_timer() -%% notify(created event) -%% if_enabled(internal_emit_stats) - so we immediately send something -%% -%% On wakeup: -%% ensure_stats_timer(Timer, emit_stats) -%% (Note we can't emit stats immediately, the timer may have fired 1ms ago.) -%% -%% emit_stats: -%% if_enabled(internal_emit_stats) -%% reset_stats_timer(Timer) - just bookkeeping -%% -%% Pre-hibernation: -%% if_enabled(internal_emit_stats) -%% stop_stats_timer(Timer) -%% -%% internal_emit_stats: -%% notify(stats) - -init_stats_timer() -> - {ok, StatsLevel} = application:get_env(rabbit, collect_statistics), - {ok, Interval} = application:get_env(rabbit, collect_statistics_interval), - #state{level = StatsLevel, interval = Interval, timer = undefined}. - -ensure_stats_timer(State = #state{level = none}, _Fun) -> - State; -ensure_stats_timer(State = #state{interval = Interval, - timer = undefined}, Fun) -> - {ok, TRef} = timer:apply_after(Interval, erlang, apply, [Fun, []]), - State#state{timer = TRef}; -ensure_stats_timer(State, _Fun) -> - State. - -stop_stats_timer(State = #state{level = none}) -> - State; -stop_stats_timer(State = #state{timer = undefined}) -> - State; -stop_stats_timer(State = #state{timer = TRef}) -> - {ok, cancel} = timer:cancel(TRef), - State#state{timer = undefined}. - -reset_stats_timer(State) -> - State#state{timer = undefined}. - -stats_level(#state{level = Level}) -> - Level. - -if_enabled(#state{level = none}, _Fun) -> - ok; -if_enabled(_State, Fun) -> - Fun(), - ok. - -notify_if(true, Type, Props) -> notify(Type, Props); -notify_if(false, _Type, _Props) -> ok. - -notify(Type, Props) -> - %% TODO: switch to os:timestamp() when we drop support for - %% Erlang/OTP < R13B01 - gen_event:notify(rabbit_event, #event{type = Type, - props = Props, - timestamp = now()}). diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl deleted file mode 100644 index afa48355..00000000 --- a/src/rabbit_exchange.erl +++ /dev/null @@ -1,359 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([recover/0, callback/3, declare/6, - assert_equivalence/6, assert_args_equivalence/2, check_type/1, - lookup/1, lookup_or_die/1, list/1, update_scratch/2, - info_keys/0, info/1, info/2, info_all/1, info_all/2, - route/2, delete/2]). -%% these must be run inside a mnesia tx --export([maybe_auto_delete/1, serial/1, peek_serial/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([name/0, type/0]). - --type(name() :: rabbit_types:r('exchange')). --type(type() :: atom()). --type(fun_name() :: atom()). - --spec(recover/0 :: () -> [name()]). --spec(callback/3:: (rabbit_types:exchange(), fun_name(), [any()]) -> 'ok'). --spec(declare/6 :: - (name(), type(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> rabbit_types:exchange()). --spec(check_type/1 :: - (binary()) -> atom() | rabbit_types:connection_exit()). --spec(assert_equivalence/6 :: - (rabbit_types:exchange(), atom(), boolean(), boolean(), boolean(), - rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(assert_args_equivalence/2 :: - (rabbit_types:exchange(), rabbit_framing:amqp_table()) - -> 'ok' | rabbit_types:connection_exit()). --spec(lookup/1 :: - (name()) -> rabbit_types:ok(rabbit_types:exchange()) | - rabbit_types:error('not_found')). --spec(lookup_or_die/1 :: - (name()) -> rabbit_types:exchange() | - rabbit_types:channel_exit()). --spec(list/1 :: (rabbit_types:vhost()) -> [rabbit_types:exchange()]). --spec(update_scratch/2 :: (name(), fun((any()) -> any())) -> 'ok'). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (rabbit_types:exchange()) -> rabbit_types:infos()). --spec(info/2 :: - (rabbit_types:exchange(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/1 :: (rabbit_types:vhost()) -> [rabbit_types:infos()]). --spec(info_all/2 ::(rabbit_types:vhost(), rabbit_types:info_keys()) - -> [rabbit_types:infos()]). --spec(route/2 :: (rabbit_types:exchange(), rabbit_types:delivery()) - -> [rabbit_amqqueue:name()]). --spec(delete/2 :: - (name(), boolean())-> 'ok' | - rabbit_types:error('not_found') | - rabbit_types:error('in_use')). --spec(maybe_auto_delete/1:: - (rabbit_types:exchange()) - -> 'not_deleted' | {'deleted', rabbit_binding:deletions()}). --spec(serial/1 :: (rabbit_types:exchange()) -> 'none' | pos_integer()). --spec(peek_serial/1 :: (name()) -> pos_integer() | 'undefined'). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [name, type, durable, auto_delete, internal, arguments]). - -recover() -> - Xs = rabbit_misc:table_filter( - fun (#exchange{name = XName}) -> - mnesia:read({rabbit_exchange, XName}) =:= [] - end, - fun (X, Tx) -> - case Tx of - true -> store(X); - false -> ok - end, - rabbit_exchange:callback(X, create, [map_create_tx(Tx), X]) - end, - rabbit_durable_exchange), - [XName || #exchange{name = XName} <- Xs]. - -callback(#exchange{type = XType}, Fun, Args) -> - apply(type_to_module(XType), Fun, Args). - -declare(XName, Type, Durable, AutoDelete, Internal, Args) -> - X = #exchange{name = XName, - type = Type, - durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - arguments = Args}, - XT = type_to_module(Type), - %% We want to upset things if it isn't ok - ok = XT:validate(X), - rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_exchange, XName}) of - [] -> - store(X), - ok = case Durable of - true -> mnesia:write(rabbit_durable_exchange, - X, write); - false -> ok - end, - {new, X}; - [ExistingX] -> - {existing, ExistingX} - end - end, - fun ({new, Exchange}, Tx) -> - ok = XT:create(map_create_tx(Tx), Exchange), - rabbit_event:notify_if(not Tx, exchange_created, info(Exchange)), - Exchange; - ({existing, Exchange}, _Tx) -> - Exchange; - (Err, _Tx) -> - Err - end). - -map_create_tx(true) -> transaction; -map_create_tx(false) -> none. - -store(X = #exchange{name = Name, type = Type}) -> - ok = mnesia:write(rabbit_exchange, X, write), - case (type_to_module(Type)):serialise_events() of - true -> S = #exchange_serial{name = Name, next = 1}, - ok = mnesia:write(rabbit_exchange_serial, S, write); - false -> ok - end. - -%% Used with binaries sent over the wire; the type may not exist. -check_type(TypeBin) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown exchange type '~s'", [TypeBin]); - T -> - case rabbit_registry:lookup_module(exchange, T) of - {error, not_found} -> rabbit_misc:protocol_error( - command_invalid, - "invalid exchange type '~s'", [T]); - {ok, _Module} -> T - end - end. - -assert_equivalence(X = #exchange{ durable = Durable, - auto_delete = AutoDelete, - internal = Internal, - type = Type}, - Type, Durable, AutoDelete, Internal, RequiredArgs) -> - (type_to_module(Type)):assert_args_equivalence(X, RequiredArgs); -assert_equivalence(#exchange{ name = Name }, - _Type, _Durable, _Internal, _AutoDelete, _Args) -> - rabbit_misc:protocol_error( - precondition_failed, - "cannot redeclare ~s with different type, durable, " - "internal or autodelete value", - [rabbit_misc:rs(Name)]). - -assert_args_equivalence(#exchange{ name = Name, arguments = Args }, - RequiredArgs) -> - %% The spec says "Arguments are compared for semantic - %% equivalence". The only arg we care about is - %% "alternate-exchange". - rabbit_misc:assert_args_equivalence(Args, RequiredArgs, Name, - [<<"alternate-exchange">>]). - -lookup(Name) -> - rabbit_misc:dirty_read({rabbit_exchange, Name}). - -lookup_or_die(Name) -> - case lookup(Name) of - {ok, X} -> X; - {error, not_found} -> rabbit_misc:not_found(Name) - end. - -list(VHostPath) -> - mnesia:dirty_match_object( - rabbit_exchange, - #exchange{name = rabbit_misc:r(VHostPath, exchange), _ = '_'}). - -update_scratch(Name, Fun) -> - rabbit_misc:execute_mnesia_transaction( - fun() -> - case mnesia:wread({rabbit_exchange, Name}) of - [X = #exchange{durable = Durable, scratch = Scratch}] -> - X1 = X#exchange{scratch = Fun(Scratch)}, - ok = mnesia:write(rabbit_exchange, X1, write), - case Durable of - true -> ok = mnesia:write(rabbit_durable_exchange, - X1, write); - _ -> ok - end; - [] -> - ok - end - end). - -info_keys() -> ?INFO_KEYS. - -map(VHostPath, F) -> - %% TODO: there is scope for optimisation here, e.g. using a - %% cursor, parallelising the function invocation - lists:map(F, list(VHostPath)). - -infos(Items, X) -> [{Item, i(Item, X)} || Item <- Items]. - -i(name, #exchange{name = Name}) -> Name; -i(type, #exchange{type = Type}) -> Type; -i(durable, #exchange{durable = Durable}) -> Durable; -i(auto_delete, #exchange{auto_delete = AutoDelete}) -> AutoDelete; -i(internal, #exchange{internal = Internal}) -> Internal; -i(arguments, #exchange{arguments = Arguments}) -> Arguments; -i(Item, _) -> throw({bad_argument, Item}). - -info(X = #exchange{}) -> infos(?INFO_KEYS, X). - -info(X = #exchange{}, Items) -> infos(Items, X). - -info_all(VHostPath) -> map(VHostPath, fun (X) -> info(X) end). - -info_all(VHostPath, Items) -> map(VHostPath, fun (X) -> info(X, Items) end). - -route(X = #exchange{name = XName}, Delivery) -> - route1(Delivery, {queue:from_list([X]), XName, []}). - -route1(Delivery, {WorkList, SeenXs, QNames}) -> - case queue:out(WorkList) of - {empty, _WorkList} -> - lists:usort(QNames); - {{value, X = #exchange{type = Type}}, WorkList1} -> - DstNames = process_alternate( - X, ((type_to_module(Type)):route(X, Delivery))), - route1(Delivery, - lists:foldl(fun process_route/2, {WorkList1, SeenXs, QNames}, - DstNames)) - end. - -process_alternate(#exchange{name = XName, arguments = Args}, []) -> - case rabbit_misc:r_arg(XName, exchange, Args, <<"alternate-exchange">>) of - undefined -> []; - AName -> [AName] - end; -process_alternate(_X, Results) -> - Results. - -process_route(#resource{kind = exchange} = XName, - {_WorkList, XName, _QNames} = Acc) -> - Acc; -process_route(#resource{kind = exchange} = XName, - {WorkList, #resource{kind = exchange} = SeenX, QNames}) -> - {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:from_list([SeenX, XName]), QNames}; -process_route(#resource{kind = exchange} = XName, - {WorkList, SeenXs, QNames} = Acc) -> - case gb_sets:is_element(XName, SeenXs) of - true -> Acc; - false -> {case lookup(XName) of - {ok, X} -> queue:in(X, WorkList); - {error, not_found} -> WorkList - end, gb_sets:add_element(XName, SeenXs), QNames} - end; -process_route(#resource{kind = queue} = QName, - {WorkList, SeenXs, QNames}) -> - {WorkList, SeenXs, [QName | QNames]}. - -call_with_exchange(XName, Fun) -> - rabbit_misc:execute_mnesia_tx_with_tail( - fun () -> case mnesia:read({rabbit_exchange, XName}) of - [] -> rabbit_misc:const({error, not_found}); - [X] -> Fun(X) - end - end). - -delete(XName, IfUnused) -> - Fun = case IfUnused of - true -> fun conditional_delete/1; - false -> fun unconditional_delete/1 - end, - call_with_exchange( - XName, - fun (X) -> - case Fun(X) of - {deleted, X, Bs, Deletions} -> - rabbit_binding:process_deletions( - rabbit_binding:add_deletion( - XName, {X, deleted, Bs}, Deletions)); - {error, _InUseOrNotFound} = E -> - rabbit_misc:const(E) - end - end). - -maybe_auto_delete(#exchange{auto_delete = false}) -> - not_deleted; -maybe_auto_delete(#exchange{auto_delete = true} = X) -> - case conditional_delete(X) of - {error, in_use} -> not_deleted; - {deleted, X, [], Deletions} -> {deleted, Deletions} - end. - -conditional_delete(X = #exchange{name = XName}) -> - case rabbit_binding:has_for_source(XName) of - false -> unconditional_delete(X); - true -> {error, in_use} - end. - -unconditional_delete(X = #exchange{name = XName}) -> - ok = mnesia:delete({rabbit_durable_exchange, XName}), - ok = mnesia:delete({rabbit_exchange, XName}), - ok = mnesia:delete({rabbit_exchange_serial, XName}), - Bindings = rabbit_binding:remove_for_source(XName), - {deleted, X, Bindings, rabbit_binding:remove_for_destination(XName)}. - -serial(#exchange{name = XName, type = Type}) -> - case (type_to_module(Type)):serialise_events() of - true -> next_serial(XName); - false -> none - end. - -next_serial(XName) -> - [#exchange_serial{next = Serial}] = - mnesia:read(rabbit_exchange_serial, XName, write), - ok = mnesia:write(rabbit_exchange_serial, - #exchange_serial{name = XName, next = Serial + 1}, write), - Serial. - -peek_serial(XName) -> - case mnesia:read({rabbit_exchange_serial, XName}) of - [#exchange_serial{next = Serial}] -> Serial; - _ -> undefined - end. - -%% Used with atoms from records; e.g., the type is expected to exist. -type_to_module(T) -> - {ok, Module} = rabbit_registry:lookup_module(exchange, T), - Module. diff --git a/src/rabbit_exchange_type.erl b/src/rabbit_exchange_type.erl deleted file mode 100644 index ab3d00dc..00000000 --- a/src/rabbit_exchange_type.erl +++ /dev/null @@ -1,54 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [ - {description, 0}, - - %% Should Rabbit ensure that all binding events that are - %% delivered to an individual exchange can be serialised? (they - %% might still be delivered out of order, but there'll be a - %% serial number). - {serialise_events, 0}, - - {route, 2}, - - %% called BEFORE declaration, to check args etc; may exit with #amqp_error{} - {validate, 1}, - - %% called after declaration and recovery - {create, 2}, - - %% called after exchange (auto)deletion. - {delete, 3}, - - %% called after a binding has been added or recovered - {add_binding, 3}, - - %% called after bindings have been deleted. - {remove_bindings, 3}, - - %% called when comparing exchanges for equivalence - should return ok or - %% exit with #amqp_error{} - {assert_args_equivalence, 2} - - ]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_exchange_type_direct.erl b/src/rabbit_exchange_type_direct.erl deleted file mode 100644 index b485e31f..00000000 --- a/src/rabbit_exchange_type_direct.erl +++ /dev/null @@ -1,50 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_direct). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, serialise_events/0, route/2]). --export([validate/1, create/2, delete/3, - add_binding/3, remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type direct"}, - {mfa, {rabbit_registry, register, - [exchange, <<"direct">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"direct">>}, - {description, <<"AMQP direct exchange, as per the AMQP specification">>}]. - -serialise_events() -> false. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{routing_keys = Routes}}) -> - rabbit_router:match_routing_key(Name, Routes). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_fanout.erl b/src/rabbit_exchange_type_fanout.erl deleted file mode 100644 index 3c029722..00000000 --- a/src/rabbit_exchange_type_fanout.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_fanout). --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, serialise_events/0, route/2]). --export([validate/1, create/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type fanout"}, - {mfa, {rabbit_registry, register, - [exchange, <<"fanout">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -description() -> - [{name, <<"fanout">>}, - {description, <<"AMQP fanout exchange, as per the AMQP specification">>}]. - -serialise_events() -> false. - -route(#exchange{name = Name}, _Delivery) -> - rabbit_router:match_routing_key(Name, ['_']). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_headers.erl b/src/rabbit_exchange_type_headers.erl deleted file mode 100644 index f09e4aae..00000000 --- a/src/rabbit_exchange_type_headers.erl +++ /dev/null @@ -1,123 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_headers). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, serialise_events/0, route/2]). --export([validate/1, create/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type headers"}, - {mfa, {rabbit_registry, register, - [exchange, <<"headers">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - --ifdef(use_specs). --spec(headers_match/2 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table()) -> boolean()). --endif. - -description() -> - [{name, <<"headers">>}, - {description, <<"AMQP headers exchange, as per the AMQP specification">>}]. - -serialise_events() -> false. - -route(#exchange{name = Name}, - #delivery{message = #basic_message{content = Content}}) -> - Headers = case (Content#content.properties)#'P_basic'.headers of - undefined -> []; - H -> rabbit_misc:sort_field_table(H) - end, - rabbit_router:match_bindings( - Name, fun (#binding{args = Spec}) -> headers_match(Spec, Headers) end). - -default_headers_match_kind() -> all. - -parse_x_match(<<"all">>) -> all; -parse_x_match(<<"any">>) -> any; -parse_x_match(Other) -> - rabbit_log:warning("Invalid x-match field value ~p; expected all or any", - [Other]), - default_headers_match_kind(). - -%% Horrendous matching algorithm. Depends for its merge-like -%% (linear-time) behaviour on the lists:keysort -%% (rabbit_misc:sort_field_table) that route/1 and -%% rabbit_binding:{add,remove}/2 do. -%% -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% In other words: REQUIRES BOTH PATTERN AND DATA TO BE SORTED ASCENDING BY KEY. -%% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -%% -headers_match(Pattern, Data) -> - MatchKind = case lists:keysearch(<<"x-match">>, 1, Pattern) of - {value, {_, longstr, MK}} -> parse_x_match(MK); - {value, {_, Type, MK}} -> - rabbit_log:warning("Invalid x-match field type ~p " - "(value ~p); expected longstr", - [Type, MK]), - default_headers_match_kind(); - _ -> default_headers_match_kind() - end, - headers_match(Pattern, Data, true, false, MatchKind). - -headers_match([], _Data, AllMatch, _AnyMatch, all) -> - AllMatch; -headers_match([], _Data, _AllMatch, AnyMatch, any) -> - AnyMatch; -headers_match([{<<"x-", _/binary>>, _PT, _PV} | PRest], Data, - AllMatch, AnyMatch, MatchKind) -> - headers_match(PRest, Data, AllMatch, AnyMatch, MatchKind); -headers_match(_Pattern, [], _AllMatch, AnyMatch, MatchKind) -> - headers_match([], [], false, AnyMatch, MatchKind); -headers_match(Pattern = [{PK, _PT, _PV} | _], [{DK, _DT, _DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK > DK -> - headers_match(Pattern, DRest, AllMatch, AnyMatch, MatchKind); -headers_match([{PK, _PT, _PV} | PRest], Data = [{DK, _DT, _DV} | _], - _AllMatch, AnyMatch, MatchKind) when PK < DK -> - headers_match(PRest, Data, false, AnyMatch, MatchKind); -headers_match([{PK, PT, PV} | PRest], [{DK, DT, DV} | DRest], - AllMatch, AnyMatch, MatchKind) when PK == DK -> - {AllMatch1, AnyMatch1} = - if - %% It's not properly specified, but a "no value" in a - %% pattern field is supposed to mean simple presence of - %% the corresponding data field. I've interpreted that to - %% mean a type of "void" for the pattern field. - PT == void -> {AllMatch, true}; - %% Similarly, it's not specified, but I assume that a - %% mismatched type causes a mismatched value. - PT =/= DT -> {false, AnyMatch}; - PV == DV -> {AllMatch, true}; - true -> {false, AnyMatch} - end, - headers_match(PRest, DRest, AllMatch1, AnyMatch1, MatchKind). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. -delete(_Tx, _X, _Bs) -> ok. -add_binding(_Tx, _X, _B) -> ok. -remove_bindings(_Tx, _X, _Bs) -> ok. -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). diff --git a/src/rabbit_exchange_type_topic.erl b/src/rabbit_exchange_type_topic.erl deleted file mode 100644 index 348655b1..00000000 --- a/src/rabbit_exchange_type_topic.erl +++ /dev/null @@ -1,278 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_exchange_type_topic). - --include("rabbit.hrl"). - --behaviour(rabbit_exchange_type). - --export([description/0, serialise_events/0, route/2]). --export([validate/1, create/2, delete/3, add_binding/3, - remove_bindings/3, assert_args_equivalence/2]). --include("rabbit_exchange_type_spec.hrl"). - --rabbit_boot_step({?MODULE, - [{description, "exchange type topic"}, - {mfa, {rabbit_registry, register, - [exchange, <<"topic">>, ?MODULE]}}, - {requires, rabbit_registry}, - {enables, kernel_ready}]}). - -%%---------------------------------------------------------------------------- - -description() -> - [{name, <<"topic">>}, - {description, <<"AMQP topic exchange, as per the AMQP specification">>}]. - -serialise_events() -> false. - -%% NB: This may return duplicate results in some situations (that's ok) -route(#exchange{name = X}, - #delivery{message = #basic_message{routing_keys = Routes}}) -> - lists:append([begin - Words = split_topic_key(RKey), - mnesia:async_dirty(fun trie_match/2, [X, Words]) - end || RKey <- Routes]). - -validate(_X) -> ok. -create(_Tx, _X) -> ok. - -delete(transaction, #exchange{name = X}, _Bs) -> - trie_remove_all_edges(X), - trie_remove_all_bindings(X), - ok; -delete(none, _Exchange, _Bs) -> - ok. - -add_binding(transaction, _Exchange, Binding) -> - internal_add_binding(Binding); -add_binding(none, _Exchange, _Binding) -> - ok. - -remove_bindings(transaction, #exchange{name = X}, Bs) -> - %% The remove process is split into two distinct phases. In the - %% first phase we gather the lists of bindings and edges to - %% delete, then in the second phase we process all the - %% deletions. This is to prevent interleaving of read/write - %% operations in mnesia that can adversely affect performance. - {ToDelete, Paths} = - lists:foldl( - fun(#binding{source = S, key = K, destination = D}, {Acc, PathAcc}) -> - Path = [{FinalNode, _} | _] = - follow_down_get_path(S, split_topic_key(K)), - {[{FinalNode, D} | Acc], - decrement_bindings(X, Path, maybe_add_path(X, Path, PathAcc))} - end, {[], gb_trees:empty()}, Bs), - - [trie_remove_binding(X, FinalNode, D) || {FinalNode, D} <- ToDelete], - [trie_remove_edge(X, Parent, Node, W) || - {Node, {Parent, W, {0, 0}}} <- gb_trees:to_list(Paths)], - ok; -remove_bindings(none, _X, _Bs) -> - ok. - -maybe_add_path(_X, [{root, none}], PathAcc) -> - PathAcc; -maybe_add_path(X, [{Node, W}, {Parent, _} | _], PathAcc) -> - case gb_trees:is_defined(Node, PathAcc) of - true -> PathAcc; - false -> gb_trees:insert(Node, {Parent, W, {trie_binding_count(X, Node), - trie_child_count(X, Node)}}, - PathAcc) - end. - -decrement_bindings(X, Path, PathAcc) -> - with_path_acc(X, fun({Bindings, Edges}) -> {Bindings - 1, Edges} end, - Path, PathAcc). - -decrement_edges(X, Path, PathAcc) -> - with_path_acc(X, fun({Bindings, Edges}) -> {Bindings, Edges - 1} end, - Path, PathAcc). - -with_path_acc(_X, _Fun, [{root, none}], PathAcc) -> - PathAcc; -with_path_acc(X, Fun, [{Node, _} | ParentPath], PathAcc) -> - {Parent, W, Counts} = gb_trees:get(Node, PathAcc), - NewCounts = Fun(Counts), - NewPathAcc = gb_trees:update(Node, {Parent, W, NewCounts}, PathAcc), - case NewCounts of - {0, 0} -> decrement_edges(X, ParentPath, - maybe_add_path(X, ParentPath, NewPathAcc)); - _ -> NewPathAcc - end. - - -assert_args_equivalence(X, Args) -> - rabbit_exchange:assert_args_equivalence(X, Args). - -%%---------------------------------------------------------------------------- - -internal_add_binding(#binding{source = X, key = K, destination = D}) -> - FinalNode = follow_down_create(X, split_topic_key(K)), - trie_add_binding(X, FinalNode, D), - ok. - -trie_match(X, Words) -> - trie_match(X, root, Words, []). - -trie_match(X, Node, [], ResAcc) -> - trie_match_part(X, Node, "#", fun trie_match_skip_any/4, [], - trie_bindings(X, Node) ++ ResAcc); -trie_match(X, Node, [W | RestW] = Words, ResAcc) -> - lists:foldl(fun ({WArg, MatchFun, RestWArg}, Acc) -> - trie_match_part(X, Node, WArg, MatchFun, RestWArg, Acc) - end, ResAcc, [{W, fun trie_match/4, RestW}, - {"*", fun trie_match/4, RestW}, - {"#", fun trie_match_skip_any/4, Words}]). - -trie_match_part(X, Node, Search, MatchFun, RestW, ResAcc) -> - case trie_child(X, Node, Search) of - {ok, NextNode} -> MatchFun(X, NextNode, RestW, ResAcc); - error -> ResAcc - end. - -trie_match_skip_any(X, Node, [], ResAcc) -> - trie_match(X, Node, [], ResAcc); -trie_match_skip_any(X, Node, [_ | RestW] = Words, ResAcc) -> - trie_match_skip_any(X, Node, RestW, - trie_match(X, Node, Words, ResAcc)). - -follow_down_create(X, Words) -> - case follow_down_last_node(X, Words) of - {ok, FinalNode} -> FinalNode; - {error, Node, RestW} -> lists:foldl( - fun (W, CurNode) -> - NewNode = new_node_id(), - trie_add_edge(X, CurNode, NewNode, W), - NewNode - end, Node, RestW) - end. - -follow_down_last_node(X, Words) -> - follow_down(X, fun (_, Node, _) -> Node end, root, Words). - -follow_down_get_path(X, Words) -> - {ok, Path} = - follow_down(X, fun (W, Node, PathAcc) -> [{Node, W} | PathAcc] end, - [{root, none}], Words), - Path. - -follow_down(X, AccFun, Acc0, Words) -> - follow_down(X, root, AccFun, Acc0, Words). - -follow_down(_X, _CurNode, _AccFun, Acc, []) -> - {ok, Acc}; -follow_down(X, CurNode, AccFun, Acc, Words = [W | RestW]) -> - case trie_child(X, CurNode, W) of - {ok, NextNode} -> follow_down(X, NextNode, AccFun, - AccFun(W, NextNode, Acc), RestW); - error -> {error, Acc, Words} - end. - -trie_child(X, Node, Word) -> - case mnesia:read({rabbit_topic_trie_edge, - #trie_edge{exchange_name = X, - node_id = Node, - word = Word}}) of - [#topic_trie_edge{node_id = NextNode}] -> {ok, NextNode}; - [] -> error - end. - -trie_bindings(X, Node) -> - MatchHead = #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = '$1'}}, - mnesia:select(rabbit_topic_trie_binding, [{MatchHead, [], ['$1']}]). - -trie_add_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:write/3). - -trie_remove_edge(X, FromNode, ToNode, W) -> - trie_edge_op(X, FromNode, ToNode, W, fun mnesia:delete_object/3). - -trie_edge_op(X, FromNode, ToNode, W, Op) -> - ok = Op(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = FromNode, - word = W}, - node_id = ToNode}, - write). - -trie_add_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:write/3). - -trie_remove_binding(X, Node, D) -> - trie_binding_op(X, Node, D, fun mnesia:delete_object/3). - -trie_binding_op(X, Node, D, Op) -> - ok = Op(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - destination = D}}, - write). - -trie_child_count(X, Node) -> - count(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -trie_binding_count(X, Node) -> - count(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, - node_id = Node, - _ = '_'}, - _ = '_'}). - -count(Table, Match) -> - length(mnesia:match_object(Table, Match, read)). - -trie_remove_all_edges(X) -> - remove_all(rabbit_topic_trie_edge, - #topic_trie_edge{trie_edge = #trie_edge{exchange_name = X, - _ = '_'}, - _ = '_'}). - -trie_remove_all_bindings(X) -> - remove_all(rabbit_topic_trie_binding, - #topic_trie_binding{ - trie_binding = #trie_binding{exchange_name = X, _ = '_'}, - _ = '_'}). - -remove_all(Table, Pattern) -> - lists:foreach(fun (R) -> mnesia:delete_object(Table, R, write) end, - mnesia:match_object(Table, Pattern, write)). - -new_node_id() -> - rabbit_guid:guid(). - -split_topic_key(Key) -> - split_topic_key(Key, [], []). - -split_topic_key(<<>>, [], []) -> - []; -split_topic_key(<<>>, RevWordAcc, RevResAcc) -> - lists:reverse([lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<<$., Rest/binary>>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [], [lists:reverse(RevWordAcc) | RevResAcc]); -split_topic_key(<>, RevWordAcc, RevResAcc) -> - split_topic_key(Rest, [C | RevWordAcc], RevResAcc). - diff --git a/src/rabbit_framing.erl b/src/rabbit_framing.erl deleted file mode 100644 index da1a6a49..00000000 --- a/src/rabbit_framing.erl +++ /dev/null @@ -1,49 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% TODO auto-generate - --module(rabbit_framing). - --ifdef(use_specs). - --export_type([protocol/0, - amqp_field_type/0, amqp_property_type/0, - amqp_table/0, amqp_array/0, amqp_value/0, - amqp_method_name/0, amqp_method/0, amqp_method_record/0, - amqp_method_field_name/0, amqp_property_record/0, - amqp_exception/0, amqp_exception_code/0, amqp_class_id/0]). - --type(protocol() :: 'rabbit_framing_amqp_0_8' | 'rabbit_framing_amqp_0_9_1'). - --define(protocol_type(T), type(T :: rabbit_framing_amqp_0_8:T | - rabbit_framing_amqp_0_9_1:T)). - --?protocol_type(amqp_field_type()). --?protocol_type(amqp_property_type()). --?protocol_type(amqp_table()). --?protocol_type(amqp_array()). --?protocol_type(amqp_value()). --?protocol_type(amqp_method_name()). --?protocol_type(amqp_method()). --?protocol_type(amqp_method_record()). --?protocol_type(amqp_method_field_name()). --?protocol_type(amqp_property_record()). --?protocol_type(amqp_exception()). --?protocol_type(amqp_exception_code()). --?protocol_type(amqp_class_id()). - --endif. diff --git a/src/rabbit_guid.erl b/src/rabbit_guid.erl deleted file mode 100644 index 234bc55b..00000000 --- a/src/rabbit_guid.erl +++ /dev/null @@ -1,119 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_guid). - --behaviour(gen_server). - --export([start_link/0]). --export([guid/0, string_guid/1, binstring_guid/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --define(SERVER, ?MODULE). --define(SERIAL_FILENAME, "rabbit_serial"). - --record(state, {serial}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([guid/0]). - --type(guid() :: binary()). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(guid/0 :: () -> guid()). --spec(string_guid/1 :: (any()) -> string()). --spec(binstring_guid/1 :: (any()) -> binary()). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, - [update_disk_serial()], []). - -update_disk_serial() -> - Filename = filename:join(rabbit_mnesia:dir(), ?SERIAL_FILENAME), - Serial = case rabbit_misc:read_term_file(Filename) of - {ok, [Num]} -> Num; - {error, enoent} -> 0; - {error, Reason} -> - throw({error, {cannot_read_serial_file, Filename, Reason}}) - end, - case rabbit_misc:write_term_file(Filename, [Serial + 1]) of - ok -> ok; - {error, Reason1} -> - throw({error, {cannot_write_serial_file, Filename, Reason1}}) - end, - Serial. - -%% generate a GUID. -%% -%% The id is only unique within a single cluster and as long as the -%% serial store hasn't been deleted. -guid() -> - %% We don't use erlang:now() here because a) it may return - %% duplicates when the system clock has been rewound prior to a - %% restart, or ids were generated at a high rate (which causes - %% now() to move ahead of the system time), and b) it is really - %% slow since it takes a global lock and makes a system call. - %% - %% A persisted serial number, in combination with self/0 (which - %% includes the node name) uniquely identifies a process in space - %% and time. We combine that with a process-local counter to give - %% us a GUID. - G = case get(guid) of - undefined -> {{gen_server:call(?SERVER, serial, infinity), self()}, - 0}; - {S, I} -> {S, I+1} - end, - put(guid, G), - erlang:md5(term_to_binary(G)). - -%% generate a readable string representation of a GUID. -string_guid(Prefix) -> - Prefix ++ "-" ++ base64:encode_to_string(guid()). - -binstring_guid(Prefix) -> - list_to_binary(string_guid(Prefix)). - -%%---------------------------------------------------------------------------- - -init([Serial]) -> - {ok, #state{serial = Serial}}. - -handle_call(serial, _From, State = #state{serial = Serial}) -> - {reply, Serial, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_heartbeat.erl b/src/rabbit_heartbeat.erl deleted file mode 100644 index 177ae868..00000000 --- a/src/rabbit_heartbeat.erl +++ /dev/null @@ -1,149 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_heartbeat). - --export([start_heartbeat_sender/3, start_heartbeat_receiver/3, - start_heartbeat_fun/1, pause_monitor/1, resume_monitor/1]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([heartbeaters/0]). --export_type([start_heartbeat_fun/0]). - --type(heartbeaters() :: {rabbit_types:maybe(pid()), rabbit_types:maybe(pid())}). - --type(heartbeat_callback() :: fun (() -> any())). - --type(start_heartbeat_fun() :: - fun((rabbit_net:socket(), non_neg_integer(), heartbeat_callback(), - non_neg_integer(), heartbeat_callback()) -> - no_return())). - --spec(start_heartbeat_sender/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). --spec(start_heartbeat_receiver/3 :: - (rabbit_net:socket(), non_neg_integer(), heartbeat_callback()) -> - rabbit_types:ok(pid())). - --spec(start_heartbeat_fun/1 :: - (pid()) -> start_heartbeat_fun()). - - --spec(pause_monitor/1 :: (heartbeaters()) -> 'ok'). --spec(resume_monitor/1 :: (heartbeaters()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_heartbeat_sender(Sock, TimeoutSec, SendFun) -> - %% the 'div 2' is there so that we don't end up waiting for nearly - %% 2 * TimeoutSec before sending a heartbeat in the boundary case - %% where the last message was sent just after a heartbeat. - heartbeater( - {Sock, TimeoutSec * 1000 div 2, send_oct, 0, - fun () -> - SendFun(), - continue - end}). - -start_heartbeat_receiver(Sock, TimeoutSec, ReceiveFun) -> - %% we check for incoming data every interval, and time out after - %% two checks with no change. As a result we will time out between - %% 2 and 3 intervals after the last data has been received. - heartbeater({Sock, TimeoutSec * 1000, recv_oct, 1, fun () -> - ReceiveFun(), - stop - end}). - -start_heartbeat_fun(SupPid) -> - fun (Sock, SendTimeoutSec, SendFun, ReceiveTimeoutSec, ReceiveFun) -> - {ok, Sender} = - start_heartbeater(SendTimeoutSec, SupPid, Sock, - SendFun, heartbeat_sender, - start_heartbeat_sender), - {ok, Receiver} = - start_heartbeater(ReceiveTimeoutSec, SupPid, Sock, - ReceiveFun, heartbeat_receiver, - start_heartbeat_receiver), - {Sender, Receiver} - end. - -pause_monitor({_Sender, none}) -> - ok; -pause_monitor({_Sender, Receiver}) -> - Receiver ! pause, - ok. - -resume_monitor({_Sender, none}) -> - ok; -resume_monitor({_Sender, Receiver}) -> - Receiver ! resume, - ok. - -%%---------------------------------------------------------------------------- -start_heartbeater(0, _SupPid, _Sock, _TimeoutFun, _Name, _Callback) -> - {ok, none}; -start_heartbeater(TimeoutSec, SupPid, Sock, TimeoutFun, Name, Callback) -> - supervisor2:start_child( - SupPid, {Name, - {rabbit_heartbeat, Callback, - [Sock, TimeoutSec, TimeoutFun]}, - transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}). - -heartbeater(Params) -> - {ok, proc_lib:spawn_link(fun () -> heartbeater(Params, {0, 0}) end)}. - -heartbeater({Sock, TimeoutMillisec, StatName, Threshold, Handler} = Params, - {StatVal, SameCount}) -> - Recurse = fun (V) -> heartbeater(Params, V) end, - receive - pause -> - receive - resume -> - Recurse({0, 0}); - Other -> - exit({unexpected_message, Other}) - end; - Other -> - exit({unexpected_message, Other}) - after TimeoutMillisec -> - case rabbit_net:getstat(Sock, [StatName]) of - {ok, [{StatName, NewStatVal}]} -> - if NewStatVal =/= StatVal -> - Recurse({NewStatVal, 0}); - SameCount < Threshold -> - Recurse({NewStatVal, SameCount + 1}); - true -> - case Handler() of - stop -> ok; - continue -> Recurse({NewStatVal, 0}) - end - end; - {error, einval} -> - %% the socket is dead, most likely because the - %% connection is being shut down -> terminate - ok; - {error, Reason} -> - exit({cannot_get_socket_stats, Reason}) - end - end. diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl deleted file mode 100644 index 8f9ab032..00000000 --- a/src/rabbit_limiter.erl +++ /dev/null @@ -1,233 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_limiter). - --behaviour(gen_server2). - --export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, - handle_info/2, prioritise_call/3]). --export([start_link/2]). --export([limit/2, can_send/3, ack/2, register/2, unregister/2]). --export([get_limit/1, block/1, unblock/1, is_blocked/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(maybe_pid() :: pid() | 'undefined'). - --spec(start_link/2 :: (pid(), non_neg_integer()) -> - rabbit_types:ok_pid_or_error()). --spec(limit/2 :: (maybe_pid(), non_neg_integer()) -> 'ok' | 'stopped'). --spec(can_send/3 :: (maybe_pid(), pid(), boolean()) -> boolean()). --spec(ack/2 :: (maybe_pid(), non_neg_integer()) -> 'ok'). --spec(register/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(unregister/2 :: (maybe_pid(), pid()) -> 'ok'). --spec(get_limit/1 :: (maybe_pid()) -> non_neg_integer()). --spec(block/1 :: (maybe_pid()) -> 'ok'). --spec(unblock/1 :: (maybe_pid()) -> 'ok' | 'stopped'). --spec(is_blocked/1 :: (maybe_pid()) -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = orddict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). -%% 'Notify' is a boolean that indicates whether a queue should be -%% notified of a change in the limit or volume that may allow it to -%% deliver more messages via the limiter's channel. - -%%---------------------------------------------------------------------------- -%% API -%%---------------------------------------------------------------------------- - -start_link(ChPid, UnackedMsgCount) -> - gen_server2:start_link(?MODULE, [ChPid, UnackedMsgCount], []). - -limit(undefined, 0) -> - ok; -limit(LimiterPid, PrefetchCount) -> - gen_server2:call(LimiterPid, {limit, PrefetchCount}, infinity). - -%% Ask the limiter whether the queue can deliver a message without -%% breaching a limit -can_send(undefined, _QPid, _AckRequired) -> - true; -can_send(LimiterPid, QPid, AckRequired) -> - rabbit_misc:with_exit_handler( - fun () -> true end, - fun () -> gen_server2:call(LimiterPid, {can_send, QPid, AckRequired}, - infinity) end). - -%% Let the limiter know that the channel has received some acks from a -%% consumer -ack(undefined, _Count) -> ok; -ack(LimiterPid, Count) -> gen_server2:cast(LimiterPid, {ack, Count}). - -register(undefined, _QPid) -> ok; -register(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {register, QPid}). - -unregister(undefined, _QPid) -> ok; -unregister(LimiterPid, QPid) -> gen_server2:cast(LimiterPid, {unregister, QPid}). - -get_limit(undefined) -> - 0; -get_limit(Pid) -> - rabbit_misc:with_exit_handler( - fun () -> 0 end, - fun () -> gen_server2:call(Pid, get_limit, infinity) end). - -block(undefined) -> - ok; -block(LimiterPid) -> - gen_server2:call(LimiterPid, block, infinity). - -unblock(undefined) -> - ok; -unblock(LimiterPid) -> - gen_server2:call(LimiterPid, unblock, infinity). - -is_blocked(undefined) -> - false; -is_blocked(LimiterPid) -> - gen_server2:call(LimiterPid, is_blocked, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([ChPid, UnackedMsgCount]) -> - {ok, #lim{ch_pid = ChPid, volume = UnackedMsgCount}}. - -prioritise_call(get_limit, _From, _State) -> 9; -prioritise_call(_Msg, _From, _State) -> 0. - -handle_call({can_send, QPid, _AckRequired}, _From, - State = #lim{blocked = true}) -> - {reply, false, limit_queue(QPid, State)}; -handle_call({can_send, QPid, AckRequired}, _From, - State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} - end; - -handle_call(get_limit, _From, State = #lim{prefetch_count = PrefetchCount}) -> - {reply, PrefetchCount, State}; - -handle_call({limit, PrefetchCount}, _From, State) -> - case maybe_notify(State, State#lim{prefetch_count = PrefetchCount}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(block, _From, State) -> - {reply, ok, State#lim{blocked = true}}; - -handle_call(unblock, _From, State) -> - case maybe_notify(State, State#lim{blocked = false}) of - {cont, State1} -> {reply, ok, State1}; - {stop, State1} -> {stop, normal, stopped, State1} - end; - -handle_call(is_blocked, _From, State) -> - {reply, blocked(State), State}. - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {cont, State1} = maybe_notify(State, State#lim{volume = NewVolume}), - {noreply, State1}; - -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; - -handle_cast({unregister, QPid}, State) -> - {noreply, forget_queue(QPid, State)}. - -handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> - {noreply, forget_queue(QPid, State)}. - -terminate(_, _) -> - ok. - -code_change(_, State, _) -> - State. - -%%---------------------------------------------------------------------------- -%% Internal plumbing -%%---------------------------------------------------------------------------- - -maybe_notify(OldState, NewState) -> - case (limit_reached(OldState) orelse blocked(OldState)) andalso - not (limit_reached(NewState) orelse blocked(NewState)) of - true -> NewState1 = notify_queues(NewState), - {case NewState1#lim.prefetch_count of - 0 -> stop; - _ -> cont - end, NewState1}; - false -> {cont, NewState} - end. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -blocked(#lim{blocked = Blocked}) -> Blocked. - -remember_queue(QPid, State = #lim{queues = Queues}) -> - case orddict:is_key(QPid, Queues) of - false -> MRef = erlang:monitor(process, QPid), - State#lim{queues = orddict:store(QPid, {MRef, false}, Queues)}; - true -> State - end. - -forget_queue(QPid, State = #lim{ch_pid = ChPid, queues = Queues}) -> - case orddict:find(QPid, Queues) of - {ok, {MRef, _}} -> true = erlang:demonitor(MRef), - ok = rabbit_amqqueue:unblock(QPid, ChPid), - State#lim{queues = orddict:erase(QPid, Queues)}; - error -> State - end. - -limit_queue(QPid, State = #lim{queues = Queues}) -> - UpdateFun = fun ({MRef, _}) -> {MRef, true} end, - State#lim{queues = orddict:update(QPid, UpdateFun, Queues)}. - -notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> - {QList, NewQueues} = - orddict:fold(fun (_QPid, {_, false}, Acc) -> Acc; - (QPid, {MRef, true}, {L, D}) -> - {[QPid | L], orddict:store(QPid, {MRef, false}, D)} - end, {[], Queues}, Queues), - case length(QList) of - 0 -> ok; - L -> - %% We randomly vary the position of queues in the list, - %% thus ensuring that each queue has an equal chance of - %% being notified first. - {L1, L2} = lists:split(random:uniform(L), QList), - [ok = rabbit_amqqueue:unblock(Q, ChPid) || Q <- L2 ++ L1], - ok - end, - State#lim{queues = NewQueues}. diff --git a/src/rabbit_log.erl b/src/rabbit_log.erl deleted file mode 100644 index 8207d6bc..00000000 --- a/src/rabbit_log.erl +++ /dev/null @@ -1,132 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_log). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([debug/1, debug/2, message/4, info/1, info/2, - warning/1, warning/2, error/1, error/2]). - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(debug/1 :: (string()) -> 'ok'). --spec(debug/2 :: (string(), [any()]) -> 'ok'). --spec(info/1 :: (string()) -> 'ok'). --spec(info/2 :: (string(), [any()]) -> 'ok'). --spec(warning/1 :: (string()) -> 'ok'). --spec(warning/2 :: (string(), [any()]) -> 'ok'). --spec(error/1 :: (string()) -> 'ok'). --spec(error/2 :: (string(), [any()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -debug(Fmt) -> - gen_server:cast(?SERVER, {debug, Fmt}). - -debug(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {debug, Fmt, Args}). - -message(Direction, Channel, MethodRecord, Content) -> - gen_server:cast(?SERVER, - {message, Direction, Channel, MethodRecord, Content}). - -info(Fmt) -> - gen_server:cast(?SERVER, {info, Fmt}). - -info(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {info, Fmt, Args}). - -warning(Fmt) -> - gen_server:cast(?SERVER, {warning, Fmt}). - -warning(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {warning, Fmt, Args}). - -error(Fmt) -> - gen_server:cast(?SERVER, {error, Fmt}). - -error(Fmt, Args) when is_list(Args) -> - gen_server:cast(?SERVER, {error, Fmt, Args}). - -%%-------------------------------------------------------------------- - -init([]) -> {ok, none}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({debug, Fmt}, State) -> - io:format("debug:: "), io:format(Fmt), - error_logger:info_msg("debug:: " ++ Fmt), - {noreply, State}; -handle_cast({debug, Fmt, Args}, State) -> - io:format("debug:: "), io:format(Fmt, Args), - error_logger:info_msg("debug:: " ++ Fmt, Args), - {noreply, State}; -handle_cast({message, Direction, Channel, MethodRecord, Content}, State) -> - io:format("~s ch~p ~p~n", - [case Direction of - in -> "-->"; - out -> "<--" end, - Channel, - {MethodRecord, Content}]), - {noreply, State}; -handle_cast({info, Fmt}, State) -> - error_logger:info_msg(Fmt), - {noreply, State}; -handle_cast({info, Fmt, Args}, State) -> - error_logger:info_msg(Fmt, Args), - {noreply, State}; -handle_cast({warning, Fmt}, State) -> - error_logger:warning_msg(Fmt), - {noreply, State}; -handle_cast({warning, Fmt, Args}, State) -> - error_logger:warning_msg(Fmt, Args), - {noreply, State}; -handle_cast({error, Fmt}, State) -> - error_logger:error_msg(Fmt), - {noreply, State}; -handle_cast({error, Fmt, Args}, State) -> - error_logger:error_msg(Fmt, Args), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - diff --git a/src/rabbit_memory_monitor.erl b/src/rabbit_memory_monitor.erl deleted file mode 100644 index 996b0a98..00000000 --- a/src/rabbit_memory_monitor.erl +++ /dev/null @@ -1,280 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - -%% This module handles the node-wide memory statistics. -%% It receives statistics from all queues, counts the desired -%% queue length (in seconds), and sends this information back to -%% queues. - --module(rabbit_memory_monitor). - --behaviour(gen_server2). - --export([start_link/0, update/0, register/2, deregister/1, - report_ram_duration/2, stop/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(process, {pid, reported, sent, callback, monitor}). - --record(state, {timer, %% 'internal_update' timer - queue_durations, %% ets #process - queue_duration_sum, %% sum of all queue_durations - queue_duration_count, %% number of elements in sum - memory_limit, %% how much memory we intend to use - desired_duration %% the desired queue duration - }). - --define(SERVER, ?MODULE). --define(DEFAULT_UPDATE_INTERVAL, 2500). --define(TABLE_NAME, ?MODULE). - -%% Because we have a feedback loop here, we need to ensure that we -%% have some space for when the queues don't quite respond as fast as -%% we would like, or when there is buffering going on in other parts -%% of the system. In short, we aim to stay some distance away from -%% when the memory alarms will go off, which cause backpressure (of -%% some sort) on producers. Note that all other Thresholds are -%% relative to this scaling. --define(MEMORY_LIMIT_SCALING, 0.4). - --define(LIMIT_THRESHOLD, 0.5). %% don't limit queues when mem use is < this - -%% If all queues are pushed to disk (duration 0), then the sum of -%% their reported lengths will be 0. If memory then becomes available, -%% unless we manually intervene, the sum will remain 0, and the queues -%% will never get a non-zero duration. Thus when the mem use is < -%% SUM_INC_THRESHOLD, increase the sum artificially by SUM_INC_AMOUNT. --define(SUM_INC_THRESHOLD, 0.95). --define(SUM_INC_AMOUNT, 1.0). - -%% If user disabled vm_memory_monitor, let's assume 1GB of memory we can use. --define(MEMORY_SIZE_FOR_DISABLED_VMM, 1073741824). - --define(EPSILON, 0.000001). %% less than this and we clamp to 0 - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(update/0 :: () -> 'ok'). --spec(register/2 :: (pid(), {atom(),atom(),[any()]}) -> 'ok'). --spec(deregister/1 :: (pid()) -> 'ok'). --spec(report_ram_duration/2 :: - (pid(), float() | 'infinity') -> number() | 'infinity'). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], []). - -update() -> - gen_server2:cast(?SERVER, update). - -register(Pid, MFA = {_M, _F, _A}) -> - gen_server2:call(?SERVER, {register, Pid, MFA}, infinity). - -deregister(Pid) -> - gen_server2:cast(?SERVER, {deregister, Pid}). - -report_ram_duration(Pid, QueueDuration) -> - gen_server2:call(?SERVER, - {report_ram_duration, Pid, QueueDuration}, infinity). - -stop() -> - gen_server2:cast(?SERVER, stop). - -%%---------------------------------------------------------------------------- -%% Gen_server callbacks -%%---------------------------------------------------------------------------- - -init([]) -> - MemoryLimit = trunc(?MEMORY_LIMIT_SCALING * - (try - vm_memory_monitor:get_memory_limit() - catch - exit:{noproc, _} -> ?MEMORY_SIZE_FOR_DISABLED_VMM - end)), - - {ok, TRef} = timer:apply_interval(?DEFAULT_UPDATE_INTERVAL, - ?SERVER, update, []), - - Ets = ets:new(?TABLE_NAME, [set, private, {keypos, #process.pid}]), - - {ok, internal_update( - #state { timer = TRef, - queue_durations = Ets, - queue_duration_sum = 0.0, - queue_duration_count = 0, - memory_limit = MemoryLimit, - desired_duration = infinity })}. - -handle_call({report_ram_duration, Pid, QueueDuration}, From, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations, - desired_duration = SendDuration }) -> - - [Proc = #process { reported = PrevQueueDuration }] = - ets:lookup(Durations, Pid), - - gen_server2:reply(From, SendDuration), - - {Sum1, Count1} = - case {PrevQueueDuration, QueueDuration} of - {infinity, infinity} -> {Sum, Count}; - {infinity, _} -> {Sum + QueueDuration, Count + 1}; - {_, infinity} -> {Sum - PrevQueueDuration, Count - 1}; - {_, _} -> {Sum - PrevQueueDuration + QueueDuration, - Count} - end, - true = ets:insert(Durations, Proc #process { reported = QueueDuration, - sent = SendDuration }), - {noreply, State #state { queue_duration_sum = zero_clamp(Sum1), - queue_duration_count = Count1 }}; - -handle_call({register, Pid, MFA}, _From, - State = #state { queue_durations = Durations }) -> - MRef = erlang:monitor(process, Pid), - true = ets:insert(Durations, #process { pid = Pid, reported = infinity, - sent = infinity, callback = MFA, - monitor = MRef }), - {reply, ok, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast({deregister, Pid}, State) -> - {noreply, internal_deregister(Pid, true, State)}; - -handle_cast(stop, State) -> - {stop, normal, State}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info({'DOWN', _MRef, process, Pid, _Reason}, State) -> - {noreply, internal_deregister(Pid, false, State)}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state { timer = TRef }) -> - timer:cancel(TRef), - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -%%---------------------------------------------------------------------------- -%% Internal functions -%%---------------------------------------------------------------------------- - -zero_clamp(Sum) -> - case Sum < ?EPSILON of - true -> 0.0; - false -> Sum - end. - -internal_deregister(Pid, Demonitor, - State = #state { queue_duration_sum = Sum, - queue_duration_count = Count, - queue_durations = Durations }) -> - case ets:lookup(Durations, Pid) of - [] -> State; - [#process { reported = PrevQueueDuration, monitor = MRef }] -> - true = case Demonitor of - true -> erlang:demonitor(MRef); - false -> true - end, - {Sum1, Count1} = - case PrevQueueDuration of - infinity -> {Sum, Count}; - _ -> {zero_clamp(Sum - PrevQueueDuration), - Count - 1} - end, - true = ets:delete(Durations, Pid), - State #state { queue_duration_sum = Sum1, - queue_duration_count = Count1 } - end. - -internal_update(State = #state { memory_limit = Limit, - queue_durations = Durations, - desired_duration = DesiredDurationAvg, - queue_duration_sum = Sum, - queue_duration_count = Count }) -> - MemoryRatio = erlang:memory(total) / Limit, - DesiredDurationAvg1 = - case MemoryRatio < ?LIMIT_THRESHOLD orelse Count == 0 of - true -> - infinity; - false -> - Sum1 = case MemoryRatio < ?SUM_INC_THRESHOLD of - true -> Sum + ?SUM_INC_AMOUNT; - false -> Sum - end, - (Sum1 / Count) / MemoryRatio - end, - State1 = State #state { desired_duration = DesiredDurationAvg1 }, - - %% only inform queues immediately if the desired duration has - %% decreased - case DesiredDurationAvg1 == infinity orelse - (DesiredDurationAvg /= infinity andalso - DesiredDurationAvg1 >= DesiredDurationAvg) of - true -> - ok; - false -> - true = - ets:foldl( - fun (Proc = #process { reported = QueueDuration, - sent = PrevSendDuration, - callback = {M, F, A} }, true) -> - case (case {QueueDuration, PrevSendDuration} of - {infinity, infinity} -> - true; - {infinity, D} -> - DesiredDurationAvg1 < D; - {D, infinity} -> - DesiredDurationAvg1 < D; - {D1, D2} -> - DesiredDurationAvg1 < - lists:min([D1,D2]) - end) of - true -> - ok = erlang:apply( - M, F, A ++ [DesiredDurationAvg1]), - ets:insert( - Durations, - Proc #process {sent = DesiredDurationAvg1}); - false -> - true - end - end, true, Durations) - end, - State1. diff --git a/src/rabbit_mirror_queue_coordinator.erl b/src/rabbit_mirror_queue_coordinator.erl deleted file mode 100644 index f6664a27..00000000 --- a/src/rabbit_mirror_queue_coordinator.erl +++ /dev/null @@ -1,395 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2010-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_mirror_queue_coordinator). - --export([start_link/3, get_gm/1, ensure_monitoring/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --export([joined/2, members_changed/3, handle_msg/3]). - --behaviour(gen_server2). --behaviour(gm). - --include("rabbit.hrl"). --include("gm_specs.hrl"). - --record(state, { q, - gm, - monitors, - death_fun - }). - --define(ONE_SECOND, 1000). - --ifdef(use_specs). - --spec(start_link/3 :: (rabbit_types:amqqueue(), pid() | 'undefined', - rabbit_mirror_queue_master:death_fun()) -> - rabbit_types:ok_pid_or_error()). --spec(get_gm/1 :: (pid()) -> pid()). --spec(ensure_monitoring/2 :: (pid(), [pid()]) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% -%% Mirror Queues -%% -%% A queue with mirrors consists of the following: -%% -%% #amqqueue{ pid, mirror_pids } -%% | | -%% +----------+ +-------+--------------+-----------...etc... -%% | | | -%% V V V -%% amqqueue_process---+ slave-----+ slave-----+ ...etc... -%% | BQ = master----+ | | BQ = vq | | BQ = vq | -%% | | BQ = vq | | +-+-------+ +-+-------+ -%% | +-+-------+ | | | -%% +-++-----|---------+ | | (some details elided) -%% || | | | -%% || coordinator-+ | | -%% || +-+---------+ | | -%% || | | | -%% || gm-+ -- -- -- -- gm-+- -- -- -- gm-+- -- --...etc... -%% || +--+ +--+ +--+ -%% || -%% consumers -%% -%% The master is merely an implementation of bq, and thus is invoked -%% through the normal bq interface by the amqqueue_process. The slaves -%% meanwhile are processes in their own right (as is the -%% coordinator). The coordinator and all slaves belong to the same gm -%% group. Every member of a gm group receives messages sent to the gm -%% group. Because the master is the bq of amqqueue_process, it doesn't -%% have sole control over its mailbox, and as a result, the master -%% itself cannot be passed messages directly (well, it could by via -%% the amqqueue:run_backing_queue callback but that would induce -%% additional unnecessary loading on the master queue process), yet it -%% needs to react to gm events, such as the death of slaves. Thus the -%% master creates the coordinator, and it is the coordinator that is -%% the gm callback module and event handler for the master. -%% -%% Consumers are only attached to the master. Thus the master is -%% responsible for informing all slaves when messages are fetched from -%% the bq, when they're acked, and when they're requeued. -%% -%% The basic goal is to ensure that all slaves performs actions on -%% their bqs in the same order as the master. Thus the master -%% intercepts all events going to its bq, and suitably broadcasts -%% these events on the gm. The slaves thus receive two streams of -%% events: one stream is via the gm, and one stream is from channels -%% directly. Whilst the stream via gm is guaranteed to be consistently -%% seen by all slaves, the same is not true of the stream via -%% channels. For example, in the event of an unexpected death of a -%% channel during a publish, only some of the mirrors may receive that -%% publish. As a result of this problem, the messages broadcast over -%% the gm contain published content, and thus slaves can operate -%% successfully on messages that they only receive via the gm. The key -%% purpose of also sending messages directly from the channels to the -%% slaves is that without this, in the event of the death of the -%% master, messages could be lost until a suitable slave is promoted. -%% -%% However, that is not the only reason. For example, if confirms are -%% in use, then there is no guarantee that every slave will see the -%% delivery with the same msg_seq_no. As a result, the slaves have to -%% wait until they've seen both the publish via gm, and the publish -%% via the channel before they have enough information to be able to -%% perform the publish to their own bq, and subsequently issue the -%% confirm, if necessary. Either form of publish can arrive first, and -%% a slave can be upgraded to the master at any point during this -%% process. Confirms continue to be issued correctly, however. -%% -%% Because the slave is a full process, it impersonates parts of the -%% amqqueue API. However, it does not need to implement all parts: for -%% example, no ack or consumer-related message can arrive directly at -%% a slave from a channel: it is only publishes that pass both -%% directly to the slaves and go via gm. -%% -%% Slaves can be added dynamically. When this occurs, there is no -%% attempt made to sync the current contents of the master with the -%% new slave, thus the slave will start empty, regardless of the state -%% of the master. Thus the slave needs to be able to detect and ignore -%% operations which are for messages it has not received: because of -%% the strict FIFO nature of queues in general, this is -%% straightforward - all new publishes that the new slave receives via -%% gm should be processed as normal, but fetches which are for -%% messages the slave has never seen should be ignored. Similarly, -%% acks for messages the slave never fetched should be -%% ignored. Eventually, as the master is consumed from, the messages -%% at the head of the queue which were there before the slave joined -%% will disappear, and the slave will become fully synced with the -%% state of the master. The detection of the sync-status of a slave is -%% done entirely based on length: if the slave and the master both -%% agree on the length of the queue after the fetch of the head of the -%% queue, then the queues must be in sync. The only other possibility -%% is that the slave's queue is shorter, and thus the fetch should be -%% ignored. -%% -%% Because acktags are issued by the bq independently, and because -%% there is no requirement for the master and all slaves to use the -%% same bq, all references to msgs going over gm is by msg_id. Thus -%% upon acking, the master must convert the acktags back to msg_ids -%% (which happens to be what bq:ack returns), then sends the msg_ids -%% over gm, the slaves must convert the msg_ids to acktags (a mapping -%% the slaves themselves must maintain). -%% -%% When the master dies, a slave gets promoted. This will be the -%% eldest slave, and thus the hope is that that slave is most likely -%% to be sync'd with the master. The design of gm is that the -%% notification of the death of the master will only appear once all -%% messages in-flight from the master have been fully delivered to all -%% members of the gm group. Thus at this point, the slave that gets -%% promoted cannot broadcast different events in a different order -%% than the master for the same msgs: there is no possibility for the -%% same msg to be processed by the old master and the new master - if -%% it was processed by the old master then it will have been processed -%% by the slave before the slave was promoted, and vice versa. -%% -%% Upon promotion, all msgs pending acks are requeued as normal, the -%% slave constructs state suitable for use in the master module, and -%% then dynamically changes into an amqqueue_process with the master -%% as the bq, and the slave's bq as the master's bq. Thus the very -%% same process that was the slave is now a full amqqueue_process. -%% -%% It is important that we avoid memory leaks due to the death of -%% senders (i.e. channels) and partial publications. A sender -%% publishing a message may fail mid way through the publish and thus -%% only some of the mirrors will receive the message. We need the -%% mirrors to be able to detect this and tidy up as necessary to avoid -%% leaks. If we just had the master monitoring all senders then we -%% would have the possibility that a sender appears and only sends the -%% message to a few of the slaves before dying. Those slaves would -%% then hold on to the message, assuming they'll receive some -%% instruction eventually from the master. Thus we have both slaves -%% and the master monitor all senders they become aware of. But there -%% is a race: if the slave receives a DOWN of a sender, how does it -%% know whether or not the master is going to send it instructions -%% regarding those messages? -%% -%% Whilst the master monitors senders, it can't access its mailbox -%% directly, so it delegates monitoring to the coordinator. When the -%% coordinator receives a DOWN message from a sender, it informs the -%% master via a callback. This allows the master to do any tidying -%% necessary, but more importantly allows the master to broadcast a -%% sender_death message to all the slaves, saying the sender has -%% died. Once the slaves receive the sender_death message, they know -%% that they're not going to receive any more instructions from the gm -%% regarding that sender, thus they throw away any publications from -%% the sender pending publication instructions. However, it is -%% possible that the coordinator receives the DOWN and communicates -%% that to the master before the master has finished receiving and -%% processing publishes from the sender. This turns out not to be a -%% problem: the sender has actually died, and so will not need to -%% receive confirms or other feedback, and should further messages be -%% "received" from the sender, the master will ask the coordinator to -%% set up a new monitor, and will continue to process the messages -%% normally. Slaves may thus receive publishes via gm from previously -%% declared "dead" senders, but again, this is fine: should the slave -%% have just thrown out the message it had received directly from the -%% sender (due to receiving a sender_death message via gm), it will be -%% able to cope with the publication purely from the master via gm. -%% -%% When a slave receives a DOWN message for a sender, if it has not -%% received the sender_death message from the master via gm already, -%% then it will wait 20 seconds before broadcasting a request for -%% confirmation from the master that the sender really has died. -%% Should a sender have only sent a publish to slaves, this allows -%% slaves to inform the master of the previous existence of the -%% sender. The master will thus monitor the sender, receive the DOWN, -%% and subsequently broadcast the sender_death message, allowing the -%% slaves to tidy up. This process can repeat for the same sender: -%% consider one slave receives the publication, then the DOWN, then -%% asks for confirmation of death, then the master broadcasts the -%% sender_death message. Only then does another slave receive the -%% publication and thus set up its monitoring. Eventually that slave -%% too will receive the DOWN, ask for confirmation and the master will -%% monitor the sender again, receive another DOWN, and send out -%% another sender_death message. Given the 20 second delay before -%% requesting death confirmation, this is highly unlikely, but it is a -%% possibility. -%% -%% When the 20 second timer expires, the slave first checks to see -%% whether it still needs confirmation of the death before requesting -%% it. This prevents unnecessary traffic on gm as it allows one -%% broadcast of the sender_death message to satisfy many slaves. -%% -%% If we consider the promotion of a slave at this point, we have two -%% possibilities: that of the slave that has received the DOWN and is -%% thus waiting for confirmation from the master that the sender -%% really is down; and that of the slave that has not received the -%% DOWN. In the first case, in the act of promotion to master, the new -%% master will monitor again the dead sender, and after it has -%% finished promoting itself, it should find another DOWN waiting, -%% which it will then broadcast. This will allow slaves to tidy up as -%% normal. In the second case, we have the possibility that -%% confirmation-of-sender-death request has been broadcast, but that -%% it was broadcast before the master failed, and that the slave being -%% promoted does not know anything about that sender, and so will not -%% monitor it on promotion. Thus a slave that broadcasts such a -%% request, at the point of broadcasting it, recurses, setting another -%% 20 second timer. As before, on expiry of the timer, the slaves -%% checks to see whether it still has not received a sender_death -%% message for the dead sender, and if not, broadcasts a death -%% confirmation request. Thus this ensures that even when a master -%% dies and the new slave has no knowledge of the dead sender, it will -%% eventually receive a death confirmation request, shall monitor the -%% dead sender, receive the DOWN and broadcast the sender_death -%% message. -%% -%% The preceding commentary deals with the possibility of slaves -%% receiving publications from senders which the master does not, and -%% the need to prevent memory leaks in such scenarios. The inverse is -%% also possible: a partial publication may cause only the master to -%% receive a publication. It will then publish the message via gm. The -%% slaves will receive it via gm, will publish it to their BQ and will -%% set up monitoring on the sender. They will then receive the DOWN -%% message and the master will eventually publish the corresponding -%% sender_death message. The slave will then be able to tidy up its -%% state as normal. -%% -%% Recovery of mirrored queues is straightforward: as nodes die, the -%% remaining nodes record this, and eventually a situation is reached -%% in which only one node is alive, which is the master. This is the -%% only node which, upon recovery, will resurrect a mirrored queue: -%% nodes which die and then rejoin as a slave will start off empty as -%% if they have no mirrored content at all. This is not surprising: to -%% achieve anything more sophisticated would require the master and -%% recovering slave to be able to check to see whether they agree on -%% the last seen state of the queue: checking length alone is not -%% sufficient in this case. -%% -%% For more documentation see the comments in bug 23554. -%% -%%---------------------------------------------------------------------------- - -start_link(Queue, GM, DeathFun) -> - gen_server2:start_link(?MODULE, [Queue, GM, DeathFun], []). - -get_gm(CPid) -> - gen_server2:call(CPid, get_gm, infinity). - -ensure_monitoring(CPid, Pids) -> - gen_server2:cast(CPid, {ensure_monitoring, Pids}). - -%% --------------------------------------------------------------------------- -%% gen_server -%% --------------------------------------------------------------------------- - -init([#amqqueue { name = QueueName } = Q, GM, DeathFun]) -> - GM1 = case GM of - undefined -> - {ok, GM2} = gm:start_link(QueueName, ?MODULE, [self()]), - receive {joined, GM2, _Members} -> - ok - end, - GM2; - _ -> - true = link(GM), - GM - end, - {ok, _TRef} = - timer:apply_interval(?ONE_SECOND, gm, broadcast, [GM1, heartbeat]), - {ok, #state { q = Q, - gm = GM1, - monitors = dict:new(), - death_fun = DeathFun }, - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(get_gm, _From, State = #state { gm = GM }) -> - reply(GM, State). - -handle_cast({gm_deaths, Deaths}, - State = #state { q = #amqqueue { name = QueueName } }) -> - rabbit_log:info("Mirrored-queue (~s): Master ~s saw deaths of mirrors ~s~n", - [rabbit_misc:rs(QueueName), - rabbit_misc:pid_to_string(self()), - [[rabbit_misc:pid_to_string(Pid), $ ] || Pid <- Deaths]]), - case rabbit_mirror_queue_misc:remove_from_queue(QueueName, Deaths) of - {ok, Pid} when node(Pid) =:= node() -> - noreply(State); - {error, not_found} -> - {stop, normal, State} - end; - -handle_cast({ensure_monitoring, Pids}, - State = #state { monitors = Monitors }) -> - Monitors1 = - lists:foldl(fun (Pid, MonitorsN) -> - case dict:is_key(Pid, MonitorsN) of - true -> MonitorsN; - false -> MRef = erlang:monitor(process, Pid), - dict:store(Pid, MRef, MonitorsN) - end - end, Monitors, Pids), - noreply(State #state { monitors = Monitors1 }). - -handle_info({'DOWN', _MonitorRef, process, Pid, _Reason}, - State = #state { monitors = Monitors, - death_fun = Fun }) -> - noreply( - case dict:is_key(Pid, Monitors) of - false -> State; - true -> ok = Fun(Pid), - State #state { monitors = dict:erase(Pid, Monitors) } - end); - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -terminate(_Reason, #state{}) -> - %% gen_server case - ok; -terminate([_CPid], _Reason) -> - %% gm case - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%% --------------------------------------------------------------------------- -%% GM -%% --------------------------------------------------------------------------- - -joined([CPid], Members) -> - CPid ! {joined, self(), Members}, - ok. - -members_changed([_CPid], _Births, []) -> - ok; -members_changed([CPid], _Births, Deaths) -> - ok = gen_server2:cast(CPid, {gm_deaths, Deaths}). - -handle_msg([_CPid], _From, heartbeat) -> - ok; -handle_msg([CPid], _From, {ensure_monitoring, _Pids} = Msg) -> - ok = gen_server2:cast(CPid, Msg); -handle_msg([_CPid], _From, _Msg) -> - ok. - -%% --------------------------------------------------------------------------- -%% Others -%% --------------------------------------------------------------------------- - -noreply(State) -> - {noreply, State, hibernate}. - -reply(Reply, State) -> - {reply, Reply, State, hibernate}. diff --git a/src/rabbit_mirror_queue_master.erl b/src/rabbit_mirror_queue_master.erl deleted file mode 100644 index 532911f2..00000000 --- a/src/rabbit_mirror_queue_master.erl +++ /dev/null @@ -1,390 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2010-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_mirror_queue_master). - --export([init/3, terminate/2, delete_and_terminate/2, - purge/1, publish/4, publish_delivered/5, fetch/2, ack/2, - requeue/3, len/1, is_empty/1, drain_confirmed/1, dropwhile/2, - set_ram_duration_target/2, ram_duration/1, - needs_timeout/1, timeout/1, handle_pre_hibernate/1, - status/1, invoke/3, is_duplicate/2, discard/3]). - --export([start/1, stop/0]). - --export([promote_backing_queue_state/6, sender_death_fun/0]). - --behaviour(rabbit_backing_queue). - --include("rabbit.hrl"). - --record(state, { gm, - coordinator, - backing_queue, - backing_queue_state, - set_delivered, - seen_status, - confirmed, - ack_msg_id, - known_senders - }). - --ifdef(use_specs). - --export_type([death_fun/0]). - --type(death_fun() :: fun ((pid()) -> 'ok')). --type(master_state() :: #state { gm :: pid(), - coordinator :: pid(), - backing_queue :: atom(), - backing_queue_state :: any(), - set_delivered :: non_neg_integer(), - seen_status :: dict(), - confirmed :: [rabbit_guid:guid()], - ack_msg_id :: dict(), - known_senders :: set() - }). - --spec(promote_backing_queue_state/6 :: - (pid(), atom(), any(), pid(), dict(), [pid()]) -> master_state()). --spec(sender_death_fun/0 :: () -> death_fun()). - --endif. - -%% For general documentation of HA design, see -%% rabbit_mirror_queue_coordinator - -%% --------------------------------------------------------------------------- -%% Backing queue -%% --------------------------------------------------------------------------- - -start(_DurableQueues) -> - %% This will never get called as this module will never be - %% installed as the default BQ implementation. - exit({not_valid_for_generic_backing_queue, ?MODULE}). - -stop() -> - %% Same as start/1. - exit({not_valid_for_generic_backing_queue, ?MODULE}). - -init(#amqqueue { name = QName, mirror_nodes = MNodes } = Q, Recover, - AsyncCallback) -> - {ok, CPid} = rabbit_mirror_queue_coordinator:start_link( - Q, undefined, sender_death_fun()), - GM = rabbit_mirror_queue_coordinator:get_gm(CPid), - MNodes1 = - (case MNodes of - all -> rabbit_mnesia:all_clustered_nodes(); - undefined -> []; - _ -> [list_to_atom(binary_to_list(Node)) || Node <- MNodes] - end) -- [node()], - [rabbit_mirror_queue_misc:add_mirror(QName, Node) || Node <- MNodes1], - {ok, BQ} = application:get_env(backing_queue_module), - BQS = BQ:init(Q, Recover, AsyncCallback), - #state { gm = GM, - coordinator = CPid, - backing_queue = BQ, - backing_queue_state = BQS, - set_delivered = 0, - seen_status = dict:new(), - confirmed = [], - ack_msg_id = dict:new(), - known_senders = sets:new() }. - -terminate({shutdown, dropped} = Reason, - State = #state { backing_queue = BQ, backing_queue_state = BQS }) -> - %% Backing queue termination - this node has been explicitly - %% dropped. Normally, non-durable queues would be tidied up on - %% startup, but there's a possibility that we will be added back - %% in without this node being restarted. Thus we must do the full - %% blown delete_and_terminate now, but only locally: we do not - %% broadcast delete_and_terminate. - State #state { backing_queue_state = BQ:delete_and_terminate(Reason, BQS), - set_delivered = 0 }; -terminate(Reason, - State = #state { backing_queue = BQ, backing_queue_state = BQS }) -> - %% Backing queue termination. The queue is going down but - %% shouldn't be deleted. Most likely safe shutdown of this - %% node. Thus just let some other slave take over. - State #state { backing_queue_state = BQ:terminate(Reason, BQS) }. - -delete_and_terminate(Reason, State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS }) -> - ok = gm:broadcast(GM, {delete_and_terminate, Reason}), - State #state { backing_queue_state = BQ:delete_and_terminate(Reason, BQS), - set_delivered = 0 }. - -purge(State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS }) -> - ok = gm:broadcast(GM, {set_length, 0}), - {Count, BQS1} = BQ:purge(BQS), - {Count, State #state { backing_queue_state = BQS1, - set_delivered = 0 }}. - -publish(Msg = #basic_message { id = MsgId }, MsgProps, ChPid, - State = #state { gm = GM, - seen_status = SS, - backing_queue = BQ, - backing_queue_state = BQS }) -> - false = dict:is_key(MsgId, SS), %% ASSERTION - ok = gm:broadcast(GM, {publish, false, ChPid, MsgProps, Msg}), - BQS1 = BQ:publish(Msg, MsgProps, ChPid, BQS), - ensure_monitoring(ChPid, State #state { backing_queue_state = BQS1 }). - -publish_delivered(AckRequired, Msg = #basic_message { id = MsgId }, MsgProps, - ChPid, State = #state { gm = GM, - seen_status = SS, - backing_queue = BQ, - backing_queue_state = BQS, - ack_msg_id = AM }) -> - false = dict:is_key(MsgId, SS), %% ASSERTION - %% Must use confirmed_broadcast here in order to guarantee that - %% all slaves are forced to interpret this publish_delivered at - %% the same point, especially if we die and a slave is promoted. - ok = gm:confirmed_broadcast( - GM, {publish, {true, AckRequired}, ChPid, MsgProps, Msg}), - {AckTag, BQS1} = - BQ:publish_delivered(AckRequired, Msg, MsgProps, ChPid, BQS), - AM1 = maybe_store_acktag(AckTag, MsgId, AM), - {AckTag, - ensure_monitoring(ChPid, State #state { backing_queue_state = BQS1, - ack_msg_id = AM1 })}. - -dropwhile(Fun, State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - set_delivered = SetDelivered }) -> - Len = BQ:len(BQS), - BQS1 = BQ:dropwhile(Fun, BQS), - Dropped = Len - BQ:len(BQS1), - SetDelivered1 = lists:max([0, SetDelivered - Dropped]), - ok = gm:broadcast(GM, {set_length, BQ:len(BQS1)}), - State #state { backing_queue_state = BQS1, - set_delivered = SetDelivered1 }. - -drain_confirmed(State = #state { backing_queue = BQ, - backing_queue_state = BQS, - seen_status = SS, - confirmed = Confirmed }) -> - {MsgIds, BQS1} = BQ:drain_confirmed(BQS), - {MsgIds1, SS1} = - lists:foldl( - fun (MsgId, {MsgIdsN, SSN}) -> - %% We will never see 'discarded' here - case dict:find(MsgId, SSN) of - error -> - {[MsgId | MsgIdsN], SSN}; - {ok, published} -> - %% It was published when we were a slave, - %% and we were promoted before we saw the - %% publish from the channel. We still - %% haven't seen the channel publish, and - %% consequently we need to filter out the - %% confirm here. We will issue the confirm - %% when we see the publish from the channel. - {MsgIdsN, dict:store(MsgId, confirmed, SSN)}; - {ok, confirmed} -> - %% Well, confirms are racy by definition. - {[MsgId | MsgIdsN], SSN} - end - end, {[], SS}, MsgIds), - {Confirmed ++ MsgIds1, State #state { backing_queue_state = BQS1, - seen_status = SS1, - confirmed = [] }}. - -fetch(AckRequired, State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - set_delivered = SetDelivered, - ack_msg_id = AM }) -> - {Result, BQS1} = BQ:fetch(AckRequired, BQS), - State1 = State #state { backing_queue_state = BQS1 }, - case Result of - empty -> - {Result, State1}; - {#basic_message { id = MsgId } = Message, IsDelivered, AckTag, - Remaining} -> - ok = gm:broadcast(GM, {fetch, AckRequired, MsgId, Remaining}), - IsDelivered1 = IsDelivered orelse SetDelivered > 0, - SetDelivered1 = lists:max([0, SetDelivered - 1]), - AM1 = maybe_store_acktag(AckTag, MsgId, AM), - {{Message, IsDelivered1, AckTag, Remaining}, - State1 #state { set_delivered = SetDelivered1, - ack_msg_id = AM1 }} - end. - -ack(AckTags, State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - ack_msg_id = AM }) -> - {MsgIds, BQS1} = BQ:ack(AckTags, BQS), - AM1 = lists:foldl(fun dict:erase/2, AM, AckTags), - case MsgIds of - [] -> ok; - _ -> ok = gm:broadcast(GM, {ack, MsgIds}) - end, - {MsgIds, State #state { backing_queue_state = BQS1, - ack_msg_id = AM1 }}. - -requeue(AckTags, MsgPropsFun, State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS }) -> - {MsgIds, BQS1} = BQ:requeue(AckTags, MsgPropsFun, BQS), - ok = gm:broadcast(GM, {requeue, MsgPropsFun, MsgIds}), - {MsgIds, State #state { backing_queue_state = BQS1 }}. - -len(#state { backing_queue = BQ, backing_queue_state = BQS }) -> - BQ:len(BQS). - -is_empty(#state { backing_queue = BQ, backing_queue_state = BQS }) -> - BQ:is_empty(BQS). - -set_ram_duration_target(Target, State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - State #state { backing_queue_state = - BQ:set_ram_duration_target(Target, BQS) }. - -ram_duration(State = #state { backing_queue = BQ, backing_queue_state = BQS }) -> - {Result, BQS1} = BQ:ram_duration(BQS), - {Result, State #state { backing_queue_state = BQS1 }}. - -needs_timeout(#state { backing_queue = BQ, backing_queue_state = BQS }) -> - BQ:needs_timeout(BQS). - -timeout(State = #state { backing_queue = BQ, backing_queue_state = BQS }) -> - State #state { backing_queue_state = BQ:timeout(BQS) }. - -handle_pre_hibernate(State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - State #state { backing_queue_state = BQ:handle_pre_hibernate(BQS) }. - -status(#state { backing_queue = BQ, backing_queue_state = BQS }) -> - BQ:status(BQS). - -invoke(?MODULE, Fun, State) -> - Fun(?MODULE, State); -invoke(Mod, Fun, State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - State #state { backing_queue_state = BQ:invoke(Mod, Fun, BQS) }. - -is_duplicate(Message = #basic_message { id = MsgId }, - State = #state { seen_status = SS, - backing_queue = BQ, - backing_queue_state = BQS, - confirmed = Confirmed }) -> - %% Here, we need to deal with the possibility that we're about to - %% receive a message that we've already seen when we were a slave - %% (we received it via gm). Thus if we do receive such message now - %% via the channel, there may be a confirm waiting to issue for - %% it. - - %% We will never see {published, ChPid, MsgSeqNo} here. - case dict:find(MsgId, SS) of - error -> - %% We permit the underlying BQ to have a peek at it, but - %% only if we ourselves are not filtering out the msg. - {Result, BQS1} = BQ:is_duplicate(Message, BQS), - {Result, State #state { backing_queue_state = BQS1 }}; - {ok, published} -> - %% It already got published when we were a slave and no - %% confirmation is waiting. amqqueue_process will have, in - %% its msg_id_to_channel mapping, the entry for dealing - %% with the confirm when that comes back in (it's added - %% immediately after calling is_duplicate). The msg is - %% invalid. We will not see this again, nor will we be - %% further involved in confirming this message, so erase. - {published, State #state { seen_status = dict:erase(MsgId, SS) }}; - {ok, confirmed} -> - %% It got published when we were a slave via gm, and - %% confirmed some time after that (maybe even after - %% promotion), but before we received the publish from the - %% channel, so couldn't previously know what the - %% msg_seq_no was (and thus confirm as a slave). So we - %% need to confirm now. As above, amqqueue_process will - %% have the entry for the msg_id_to_channel mapping added - %% immediately after calling is_duplicate/2. - {published, State #state { seen_status = dict:erase(MsgId, SS), - confirmed = [MsgId | Confirmed] }}; - {ok, discarded} -> - %% Don't erase from SS here because discard/2 is about to - %% be called and we need to be able to detect this case - {discarded, State} - end. - -discard(Msg = #basic_message { id = MsgId }, ChPid, - State = #state { gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - seen_status = SS }) -> - %% It's a massive error if we get told to discard something that's - %% already been published or published-and-confirmed. To do that - %% would require non FIFO access. Hence we should not find - %% 'published' or 'confirmed' in this dict:find. - case dict:find(MsgId, SS) of - error -> - ok = gm:broadcast(GM, {discard, ChPid, Msg}), - State #state { backing_queue_state = BQ:discard(Msg, ChPid, BQS), - seen_status = dict:erase(MsgId, SS) }; - {ok, discarded} -> - State - end. - -%% --------------------------------------------------------------------------- -%% Other exported functions -%% --------------------------------------------------------------------------- - -promote_backing_queue_state(CPid, BQ, BQS, GM, SeenStatus, KS) -> - #state { gm = GM, - coordinator = CPid, - backing_queue = BQ, - backing_queue_state = BQS, - set_delivered = BQ:len(BQS), - seen_status = SeenStatus, - confirmed = [], - ack_msg_id = dict:new(), - known_senders = sets:from_list(KS) }. - -sender_death_fun() -> - Self = self(), - fun (DeadPid) -> - rabbit_amqqueue:run_backing_queue( - Self, ?MODULE, - fun (?MODULE, State = #state { gm = GM, known_senders = KS }) -> - ok = gm:broadcast(GM, {sender_death, DeadPid}), - KS1 = sets:del_element(DeadPid, KS), - State #state { known_senders = KS1 } - end) - end. - -%% --------------------------------------------------------------------------- -%% Helpers -%% --------------------------------------------------------------------------- - -maybe_store_acktag(undefined, _MsgId, AM) -> - AM; -maybe_store_acktag(AckTag, MsgId, AM) -> - dict:store(AckTag, MsgId, AM). - -ensure_monitoring(ChPid, State = #state { coordinator = CPid, - known_senders = KS }) -> - case sets:is_element(ChPid, KS) of - true -> State; - false -> ok = rabbit_mirror_queue_coordinator:ensure_monitoring( - CPid, [ChPid]), - State #state { known_senders = sets:add_element(ChPid, KS) } - end. diff --git a/src/rabbit_mirror_queue_misc.erl b/src/rabbit_mirror_queue_misc.erl deleted file mode 100644 index 6a9f733e..00000000 --- a/src/rabbit_mirror_queue_misc.erl +++ /dev/null @@ -1,135 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2010-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_mirror_queue_misc). - --export([remove_from_queue/2, on_node_up/0, - drop_mirror/2, drop_mirror/3, add_mirror/2, add_mirror/3]). - --include("rabbit.hrl"). - -%% If the dead pids include the queue pid (i.e. the master has died) -%% then only remove that if we are about to be promoted. Otherwise we -%% can have the situation where a slave updates the mnesia record for -%% a queue, promoting another slave before that slave realises it has -%% become the new master, which is bad because it could then mean the -%% slave (now master) receives messages it's not ready for (for -%% example, new consumers). -remove_from_queue(QueueName, DeadPids) -> - DeadNodes = [node(DeadPid) || DeadPid <- DeadPids], - rabbit_misc:execute_mnesia_transaction( - fun () -> - %% Someone else could have deleted the queue before we - %% get here. - case mnesia:read({rabbit_queue, QueueName}) of - [] -> {error, not_found}; - [Q = #amqqueue { pid = QPid, - slave_pids = SPids }] -> - [QPid1 | SPids1] = - [Pid || Pid <- [QPid | SPids], - not lists:member(node(Pid), DeadNodes)], - case {{QPid, SPids}, {QPid1, SPids1}} of - {Same, Same} -> - ok; - _ when QPid =:= QPid1 orelse node(QPid1) =:= node() -> - %% Either master hasn't changed, so - %% we're ok to update mnesia; or we have - %% become the master. - Q1 = Q #amqqueue { pid = QPid1, - slave_pids = SPids1 }, - ok = rabbit_amqqueue:store_queue(Q1); - _ -> - %% Master has changed, and we're not it, - %% so leave alone to allow the promoted - %% slave to find it and make its - %% promotion atomic. - ok - end, - {ok, QPid1} - end - end). - -on_node_up() -> - Qs = - rabbit_misc:execute_mnesia_transaction( - fun () -> - mnesia:foldl( - fun (#amqqueue { mirror_nodes = undefined }, QsN) -> - QsN; - (#amqqueue { name = QName, - mirror_nodes = all }, QsN) -> - [QName | QsN]; - (#amqqueue { name = QName, - mirror_nodes = MNodes }, QsN) -> - case lists:member(node(), MNodes) of - true -> [QName | QsN]; - false -> QsN - end - end, [], rabbit_queue) - end), - [add_mirror(Q, node()) || Q <- Qs], - ok. - -drop_mirror(VHostPath, QueueName, MirrorNode) -> - drop_mirror(rabbit_misc:r(VHostPath, queue, QueueName), MirrorNode). - -drop_mirror(Queue, MirrorNode) -> - if_mirrored_queue( - Queue, - fun (#amqqueue { name = Name, pid = QPid, slave_pids = SPids }) -> - case [Pid || Pid <- [QPid | SPids], node(Pid) =:= MirrorNode] of - [] -> - {error, {queue_not_mirrored_on_node, MirrorNode}}; - [QPid] when SPids =:= [] -> - {error, cannot_drop_only_mirror}; - [Pid] -> - rabbit_log:info( - "Dropping queue mirror on node ~p for ~s~n", - [MirrorNode, rabbit_misc:rs(Name)]), - exit(Pid, {shutdown, dropped}), - ok - end - end). - -add_mirror(VHostPath, QueueName, MirrorNode) -> - add_mirror(rabbit_misc:r(VHostPath, queue, QueueName), MirrorNode). - -add_mirror(Queue, MirrorNode) -> - if_mirrored_queue( - Queue, - fun (#amqqueue { name = Name, pid = QPid, slave_pids = SPids } = Q) -> - case [Pid || Pid <- [QPid | SPids], node(Pid) =:= MirrorNode] of - [] -> Result = rabbit_mirror_queue_slave_sup:start_child( - MirrorNode, [Q]), - rabbit_log:info( - "Adding mirror of queue ~s on node ~p: ~p~n", - [rabbit_misc:rs(Name), MirrorNode, Result]), - case Result of - {ok, _Pid} -> ok; - _ -> Result - end; - [_] -> {error, {queue_already_mirrored_on_node, MirrorNode}} - end - end). - -if_mirrored_queue(Queue, Fun) -> - rabbit_amqqueue:with( - Queue, fun (#amqqueue { arguments = Args } = Q) -> - case rabbit_misc:table_lookup(Args, <<"x-ha-policy">>) of - undefined -> ok; - _ -> Fun(Q) - end - end). diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl deleted file mode 100644 index b38a8967..00000000 --- a/src/rabbit_mirror_queue_slave.erl +++ /dev/null @@ -1,850 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2010-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_mirror_queue_slave). - -%% For general documentation of HA design, see -%% rabbit_mirror_queue_coordinator -%% -%% We join the GM group before we add ourselves to the amqqueue -%% record. As a result: -%% 1. We can receive msgs from GM that correspond to messages we will -%% never receive from publishers. -%% 2. When we receive a message from publishers, we must receive a -%% message from the GM group for it. -%% 3. However, that instruction from the GM group can arrive either -%% before or after the actual message. We need to be able to -%% distinguish between GM instructions arriving early, and case (1) -%% above. -%% -%% All instructions from the GM group must be processed in the order -%% in which they're received. - --export([start_link/1, set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2]). - --export([joined/2, members_changed/3, handle_msg/3]). - --behaviour(gen_server2). --behaviour(gm). - --include("rabbit.hrl"). --include("gm_specs.hrl"). - --define(SYNC_INTERVAL, 25). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). --define(DEATH_TIMEOUT, 20000). %% 20 seconds - --record(state, { q, - gm, - master_pid, - backing_queue, - backing_queue_state, - sync_timer_ref, - rate_timer_ref, - - sender_queues, %% :: Pid -> {Q {Msg, Bool}, Set MsgId} - msg_id_ack, %% :: MsgId -> AckTag - ack_num, - - msg_id_status, - known_senders - }). - -start_link(Q) -> - gen_server2:start_link(?MODULE, [Q], []). - -set_maximum_since_use(QPid, Age) -> - gen_server2:cast(QPid, {set_maximum_since_use, Age}). - -init([#amqqueue { name = QueueName } = Q]) -> - process_flag(trap_exit, true), %% amqqueue_process traps exits too. - {ok, GM} = gm:start_link(QueueName, ?MODULE, [self()]), - receive {joined, GM} -> - ok - end, - Self = self(), - Node = node(), - {ok, MPid} = - rabbit_misc:execute_mnesia_transaction( - fun () -> - [Q1 = #amqqueue { pid = QPid, slave_pids = MPids }] = - mnesia:read({rabbit_queue, QueueName}), - %% ASSERTION - [] = [Pid || Pid <- [QPid | MPids], node(Pid) =:= Node], - MPids1 = MPids ++ [Self], - mnesia:write(rabbit_queue, - Q1 #amqqueue { slave_pids = MPids1 }, - write), - {ok, QPid} - end), - erlang:monitor(process, MPid), - ok = file_handle_cache:register_callback( - rabbit_amqqueue, set_maximum_since_use, [self()]), - ok = rabbit_memory_monitor:register( - self(), {rabbit_amqqueue, set_ram_duration_target, [self()]}), - {ok, BQ} = application:get_env(backing_queue_module), - BQS = bq_init(BQ, Q, false), - {ok, #state { q = Q, - gm = GM, - master_pid = MPid, - backing_queue = BQ, - backing_queue_state = BQS, - rate_timer_ref = undefined, - sync_timer_ref = undefined, - - sender_queues = dict:new(), - msg_id_ack = dict:new(), - ack_num = 0, - - msg_id_status = dict:new(), - known_senders = dict:new() - }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call({deliver_immediately, Delivery = #delivery {}}, From, State) -> - %% Synchronous, "immediate" delivery mode - - %% It is safe to reply 'false' here even if a) we've not seen the - %% msg via gm, or b) the master dies before we receive the msg via - %% gm. In the case of (a), we will eventually receive the msg via - %% gm, and it's only the master's result to the channel that is - %% important. In the case of (b), if the master does die and we do - %% get promoted then at that point we have no consumers, thus - %% 'false' is precisely the correct answer. However, we must be - %% careful to _not_ enqueue the message in this case. - - %% Note this is distinct from the case where we receive the msg - %% via gm first, then we're promoted to master, and only then do - %% we receive the msg from the channel. - gen_server2:reply(From, false), %% master may deliver it, not us - noreply(maybe_enqueue_message(Delivery, false, State)); - -handle_call({deliver, Delivery = #delivery {}}, From, State) -> - %% Synchronous, "mandatory" delivery mode - gen_server2:reply(From, true), %% amqqueue throws away the result anyway - noreply(maybe_enqueue_message(Delivery, true, State)); - -handle_call({gm_deaths, Deaths}, From, - State = #state { q = #amqqueue { name = QueueName }, - gm = GM, - master_pid = MPid }) -> - rabbit_log:info("Mirrored-queue (~s): Slave ~s saw deaths of mirrors ~s~n", - [rabbit_misc:rs(QueueName), - rabbit_misc:pid_to_string(self()), - [[rabbit_misc:pid_to_string(Pid), $ ] || Pid <- Deaths]]), - %% The GM has told us about deaths, which means we're not going to - %% receive any more messages from GM - case rabbit_mirror_queue_misc:remove_from_queue(QueueName, Deaths) of - {ok, Pid} when node(Pid) =:= node(MPid) -> - %% master hasn't changed - reply(ok, State); - {ok, Pid} when node(Pid) =:= node() -> - %% we've become master - promote_me(From, State); - {ok, Pid} -> - %% master has changed to not us. - gen_server2:reply(From, ok), - erlang:monitor(process, Pid), - ok = gm:broadcast(GM, heartbeat), - noreply(State #state { master_pid = Pid }); - {error, not_found} -> - gen_server2:reply(From, ok), - {stop, normal, State} - end. - -handle_cast({run_backing_queue, Mod, Fun}, State) -> - noreply(run_backing_queue(Mod, Fun, State)); - -handle_cast({gm, Instruction}, State) -> - handle_process_result(process_instruction(Instruction, State)); - -handle_cast({deliver, Delivery = #delivery {}}, State) -> - %% Asynchronous, non-"mandatory", non-"immediate" deliver mode. - noreply(maybe_enqueue_message(Delivery, true, State)); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State); - -handle_cast({set_ram_duration_target, Duration}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - BQS1 = BQ:set_ram_duration_target(Duration, BQS), - noreply(State #state { backing_queue_state = BQS1 }); - -handle_cast(update_ram_duration, - State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - noreply(State #state { rate_timer_ref = just_measured, - backing_queue_state = BQS2 }); - -handle_cast(sync_timeout, State) -> - noreply(backing_queue_timeout( - State #state { sync_timer_ref = undefined })). - -handle_info(timeout, State) -> - noreply(backing_queue_timeout(State)); - -handle_info({'DOWN', _MonitorRef, process, MPid, _Reason}, - State = #state { gm = GM, master_pid = MPid }) -> - ok = gm:broadcast(GM, {process_death, MPid}), - noreply(State); - -handle_info({'DOWN', _MonitorRef, process, ChPid, _Reason}, State) -> - noreply(local_sender_death(ChPid, State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}; - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -%% If the Reason is shutdown, or {shutdown, _}, it is not the queue -%% being deleted: it's just the node going down. Even though we're a -%% slave, we have no idea whether or not we'll be the only copy coming -%% back up. Thus we must assume we will be, and preserve anything we -%% have on disk. -terminate(_Reason, #state { backing_queue_state = undefined }) -> - %% We've received a delete_and_terminate from gm, thus nothing to - %% do here. - ok; -terminate({shutdown, dropped} = R, #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - %% See rabbit_mirror_queue_master:terminate/2 - BQ:delete_and_terminate(R, BQS); -terminate(Reason, #state { q = Q, - gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - rate_timer_ref = RateTRef }) -> - ok = gm:leave(GM), - QueueState = rabbit_amqqueue_process:init_with_backing_queue_state( - Q, BQ, BQS, RateTRef, [], [], dict:new()), - rabbit_amqqueue_process:terminate(Reason, QueueState); -terminate([_SPid], _Reason) -> - %% gm case - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -handle_pre_hibernate(State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - {RamDuration, BQS1} = BQ:ram_duration(BQS), - DesiredDuration = - rabbit_memory_monitor:report_ram_duration(self(), RamDuration), - BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), - BQS3 = BQ:handle_pre_hibernate(BQS2), - {hibernate, stop_rate_timer(State #state { backing_queue_state = BQS3 })}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - {gm_deaths, _Deaths} -> 5; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - update_ram_duration -> 8; - {set_ram_duration_target, _Duration} -> 8; - {set_maximum_since_use, _Age} -> 8; - {run_backing_queue, _Mod, _Fun} -> 6; - sync_timeout -> 6; - {gm, _Msg} -> 5; - {post_commit, _Txn, _AckTags} -> 4; - _ -> 0 - end. - -%% --------------------------------------------------------------------------- -%% GM -%% --------------------------------------------------------------------------- - -joined([SPid], _Members) -> - SPid ! {joined, self()}, - ok. - -members_changed([_SPid], _Births, []) -> - ok; -members_changed([SPid], _Births, Deaths) -> - inform_deaths(SPid, Deaths). - -handle_msg([_SPid], _From, heartbeat) -> - ok; -handle_msg([_SPid], _From, {ensure_monitoring, _Pid}) -> - %% This is only of value to the master - ok; -handle_msg([SPid], _From, {process_death, Pid}) -> - inform_deaths(SPid, [Pid]); -handle_msg([SPid], _From, Msg) -> - ok = gen_server2:cast(SPid, {gm, Msg}). - -inform_deaths(SPid, Deaths) -> - rabbit_misc:with_exit_handler( - fun () -> {stop, normal} end, - fun () -> - case gen_server2:call(SPid, {gm_deaths, Deaths}, infinity) of - ok -> - ok; - {promote, CPid} -> - {become, rabbit_mirror_queue_coordinator, [CPid]} - end - end). - -%% --------------------------------------------------------------------------- -%% Others -%% --------------------------------------------------------------------------- - -bq_init(BQ, Q, Recover) -> - Self = self(), - BQ:init(Q, Recover, - fun (Mod, Fun) -> - rabbit_amqqueue:run_backing_queue(Self, Mod, Fun) - end). - -run_backing_queue(rabbit_mirror_queue_master, Fun, State) -> - %% Yes, this might look a little crazy, but see comments in - %% confirm_sender_death/1 - Fun(?MODULE, State); -run_backing_queue(Mod, Fun, State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - State #state { backing_queue_state = BQ:invoke(Mod, Fun, BQS) }. - -needs_confirming(#delivery{ msg_seq_no = undefined }, _State) -> - never; -needs_confirming(#delivery { message = #basic_message { - is_persistent = true } }, - #state { q = #amqqueue { durable = true } }) -> - eventually; -needs_confirming(_Delivery, _State) -> - immediately. - -confirm_messages(MsgIds, State = #state { msg_id_status = MS }) -> - {MS1, CMs} = - lists:foldl( - fun (MsgId, {MSN, CMsN} = Acc) -> - %% We will never see 'discarded' here - case dict:find(MsgId, MSN) of - error -> - %% If it needed confirming, it'll have - %% already been done. - Acc; - {ok, {published, ChPid}} -> - %% Still not seen it from the channel, just - %% record that it's been confirmed. - {dict:store(MsgId, {confirmed, ChPid}, MSN), CMsN}; - {ok, {published, ChPid, MsgSeqNo}} -> - %% Seen from both GM and Channel. Can now - %% confirm. - {dict:erase(MsgId, MSN), - gb_trees_cons(ChPid, MsgSeqNo, CMsN)}; - {ok, {confirmed, _ChPid}} -> - %% It's already been confirmed. This is - %% probably it's been both sync'd to disk - %% and then delivered and ack'd before we've - %% seen the publish from the - %% channel. Nothing to do here. - Acc - end - end, {MS, gb_trees:empty()}, MsgIds), - [ok = rabbit_channel:confirm(ChPid, MsgSeqNos) - || {ChPid, MsgSeqNos} <- gb_trees:to_list(CMs)], - State #state { msg_id_status = MS1 }. - -gb_trees_cons(Key, Value, Tree) -> - case gb_trees:lookup(Key, Tree) of - {value, Values} -> gb_trees:update(Key, [Value | Values], Tree); - none -> gb_trees:insert(Key, [Value], Tree) - end. - -handle_process_result({ok, State}) -> noreply(State); -handle_process_result({stop, State}) -> {stop, normal, State}. - -promote_me(From, #state { q = Q, - gm = GM, - backing_queue = BQ, - backing_queue_state = BQS, - rate_timer_ref = RateTRef, - sender_queues = SQ, - msg_id_ack = MA, - msg_id_status = MS, - known_senders = KS }) -> - rabbit_log:info("Mirrored-queue (~s): Promoting slave ~s to master~n", - [rabbit_misc:rs(Q #amqqueue.name), - rabbit_misc:pid_to_string(self())]), - Q1 = Q #amqqueue { pid = self() }, - {ok, CPid} = rabbit_mirror_queue_coordinator:start_link( - Q1, GM, rabbit_mirror_queue_master:sender_death_fun()), - true = unlink(GM), - gen_server2:reply(From, {promote, CPid}), - ok = gm:confirmed_broadcast(GM, heartbeat), - - %% Everything that we're monitoring, we need to ensure our new - %% coordinator is monitoring. - - MonitoringPids = [begin true = erlang:demonitor(MRef), - Pid - end || {Pid, MRef} <- dict:to_list(KS)], - ok = rabbit_mirror_queue_coordinator:ensure_monitoring( - CPid, MonitoringPids), - - %% We find all the messages that we've received from channels but - %% not from gm, and if they're due to be enqueued on promotion - %% then we pass them to the - %% queue_process:init_with_backing_queue_state to be enqueued. - %% - %% We also have to requeue messages which are pending acks: the - %% consumers from the master queue have been lost and so these - %% messages need requeuing. They might also be pending - %% confirmation, and indeed they might also be pending arrival of - %% the publication from the channel itself, if we received both - %% the publication and the fetch via gm first! Requeuing doesn't - %% affect confirmations: if the message was previously pending a - %% confirmation then it still will be, under the same msg_id. So - %% as a master, we need to be prepared to filter out the - %% publication of said messages from the channel (is_duplicate - %% (thus such requeued messages must remain in the msg_id_status - %% (MS) which becomes seen_status (SS) in the master)). - %% - %% Then there are messages we already have in the queue, which are - %% not currently pending acknowledgement: - %% 1. Messages we've only received via gm: - %% Filter out subsequent publication from channel through - %% validate_message. Might have to issue confirms then or - %% later, thus queue_process state will have to know that - %% there's a pending confirm. - %% 2. Messages received via both gm and channel: - %% Queue will have to deal with issuing confirms if necessary. - %% - %% MS contains the following three entry types: - %% - %% a) {published, ChPid}: - %% published via gm only; pending arrival of publication from - %% channel, maybe pending confirm. - %% - %% b) {published, ChPid, MsgSeqNo}: - %% published via gm and channel; pending confirm. - %% - %% c) {confirmed, ChPid}: - %% published via gm only, and confirmed; pending publication - %% from channel. - %% - %% d) discarded - %% seen via gm only as discarded. Pending publication from - %% channel - %% - %% The forms a, c and d only, need to go to the master state - %% seen_status (SS). - %% - %% The form b only, needs to go through to the queue_process - %% state to form the msg_id_to_channel mapping (MTC). - %% - %% No messages that are enqueued from SQ at this point will have - %% entries in MS. - %% - %% Messages that are extracted from MA may have entries in MS, and - %% those messages are then requeued. However, as discussed above, - %% this does not affect MS, nor which bits go through to SS in - %% Master, or MTC in queue_process. - %% - %% Everything that's in MA gets requeued. Consequently the new - %% master should start with a fresh AM as there are no messages - %% pending acks. - - MSList = dict:to_list(MS), - SS = dict:from_list( - [E || E = {_MsgId, discarded} <- MSList] ++ - [{MsgId, Status} - || {MsgId, {Status, _ChPid}} <- MSList, - Status =:= published orelse Status =:= confirmed]), - - MasterState = rabbit_mirror_queue_master:promote_backing_queue_state( - CPid, BQ, BQS, GM, SS, MonitoringPids), - - MTC = dict:from_list( - [{MsgId, {ChPid, MsgSeqNo}} || - {MsgId, {published, ChPid, MsgSeqNo}} <- dict:to_list(MS)]), - NumAckTags = [NumAckTag || {_MsgId, NumAckTag} <- dict:to_list(MA)], - AckTags = [AckTag || {_Num, AckTag} <- lists:sort(NumAckTags)], - Deliveries = [Delivery || {_ChPid, {PubQ, _PendCh}} <- dict:to_list(SQ), - {Delivery, true} <- queue:to_list(PubQ)], - QueueState = rabbit_amqqueue_process:init_with_backing_queue_state( - Q1, rabbit_mirror_queue_master, MasterState, RateTRef, - AckTags, Deliveries, MTC), - {become, rabbit_amqqueue_process, QueueState, hibernate}. - -noreply(State) -> - {NewState, Timeout} = next_state(State), - {noreply, NewState, Timeout}. - -reply(Reply, State) -> - {NewState, Timeout} = next_state(State), - {reply, Reply, NewState, Timeout}. - -next_state(State = #state{backing_queue = BQ, backing_queue_state = BQS}) -> - {MsgIds, BQS1} = BQ:drain_confirmed(BQS), - State1 = ensure_rate_timer( - confirm_messages(MsgIds, State #state { - backing_queue_state = BQS1 })), - case BQ:needs_timeout(BQS1) of - false -> {stop_sync_timer(State1), hibernate}; - idle -> {stop_sync_timer(State1), 0 }; - timed -> {ensure_sync_timer(State1), 0 } - end. - -backing_queue_timeout(State = #state { backing_queue = BQ }) -> - run_backing_queue(BQ, fun (M, BQS) -> M:timeout(BQS) end, State). - -ensure_sync_timer(State = #state { sync_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after( - ?SYNC_INTERVAL, rabbit_amqqueue, sync_timeout, [self()]), - State #state { sync_timer_ref = TRef }; -ensure_sync_timer(State) -> - State. - -stop_sync_timer(State = #state { sync_timer_ref = undefined }) -> - State; -stop_sync_timer(State = #state { sync_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #state { sync_timer_ref = undefined }. - -ensure_rate_timer(State = #state { rate_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after( - ?RAM_DURATION_UPDATE_INTERVAL, - rabbit_amqqueue, update_ram_duration, - [self()]), - State #state { rate_timer_ref = TRef }; -ensure_rate_timer(State = #state { rate_timer_ref = just_measured }) -> - State #state { rate_timer_ref = undefined }; -ensure_rate_timer(State) -> - State. - -stop_rate_timer(State = #state { rate_timer_ref = undefined }) -> - State; -stop_rate_timer(State = #state { rate_timer_ref = just_measured }) -> - State #state { rate_timer_ref = undefined }; -stop_rate_timer(State = #state { rate_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #state { rate_timer_ref = undefined }. - -ensure_monitoring(ChPid, State = #state { known_senders = KS }) -> - case dict:is_key(ChPid, KS) of - true -> State; - false -> MRef = erlang:monitor(process, ChPid), - State #state { known_senders = dict:store(ChPid, MRef, KS) } - end. - -local_sender_death(ChPid, State = #state { known_senders = KS }) -> - ok = case dict:is_key(ChPid, KS) of - false -> ok; - true -> confirm_sender_death(ChPid) - end, - State. - -confirm_sender_death(Pid) -> - %% We have to deal with the possibility that we'll be promoted to - %% master before this thing gets run. Consequently we set the - %% module to rabbit_mirror_queue_master so that if we do become a - %% rabbit_amqqueue_process before then, sane things will happen. - Fun = - fun (?MODULE, State = #state { known_senders = KS, - gm = GM }) -> - %% We're running still as a slave - ok = case dict:is_key(Pid, KS) of - false -> ok; - true -> gm:broadcast(GM, {ensure_monitoring, [Pid]}), - confirm_sender_death(Pid) - end, - State; - (rabbit_mirror_queue_master, State) -> - %% We've become a master. State is now opaque to - %% us. When we became master, if Pid was still known - %% to us then we'd have set up monitoring of it then, - %% so this is now a noop. - State - end, - %% Note that we do not remove our knowledge of this ChPid until we - %% get the sender_death from GM. - {ok, _TRef} = timer:apply_after( - ?DEATH_TIMEOUT, rabbit_amqqueue, run_backing_queue, - [self(), rabbit_mirror_queue_master, Fun]), - ok. - -maybe_enqueue_message( - Delivery = #delivery { message = #basic_message { id = MsgId }, - msg_seq_no = MsgSeqNo, - sender = ChPid }, - EnqueueOnPromotion, - State = #state { sender_queues = SQ, msg_id_status = MS }) -> - State1 = ensure_monitoring(ChPid, State), - %% We will never see {published, ChPid, MsgSeqNo} here. - case dict:find(MsgId, MS) of - error -> - {MQ, PendingCh} = get_sender_queue(ChPid, SQ), - MQ1 = queue:in({Delivery, EnqueueOnPromotion}, MQ), - SQ1 = dict:store(ChPid, {MQ1, PendingCh}, SQ), - State1 #state { sender_queues = SQ1 }; - {ok, {confirmed, ChPid}} -> - %% BQ has confirmed it but we didn't know what the - %% msg_seq_no was at the time. We do now! - ok = rabbit_channel:confirm(ChPid, [MsgSeqNo]), - SQ1 = remove_from_pending_ch(MsgId, ChPid, SQ), - State1 #state { sender_queues = SQ1, - msg_id_status = dict:erase(MsgId, MS) }; - {ok, {published, ChPid}} -> - %% It was published to the BQ and we didn't know the - %% msg_seq_no so couldn't confirm it at the time. - case needs_confirming(Delivery, State1) of - never -> - SQ1 = remove_from_pending_ch(MsgId, ChPid, SQ), - State1 #state { msg_id_status = dict:erase(MsgId, MS), - sender_queues = SQ1 }; - eventually -> - State1 #state { - msg_id_status = - dict:store(MsgId, {published, ChPid, MsgSeqNo}, MS) }; - immediately -> - ok = rabbit_channel:confirm(ChPid, [MsgSeqNo]), - SQ1 = remove_from_pending_ch(MsgId, ChPid, SQ), - State1 #state { msg_id_status = dict:erase(MsgId, MS), - sender_queues = SQ1 } - end; - {ok, discarded} -> - %% We've already heard from GM that the msg is to be - %% discarded. We won't see this again. - SQ1 = remove_from_pending_ch(MsgId, ChPid, SQ), - State1 #state { msg_id_status = dict:erase(MsgId, MS), - sender_queues = SQ1 } - end. - -get_sender_queue(ChPid, SQ) -> - case dict:find(ChPid, SQ) of - error -> {queue:new(), sets:new()}; - {ok, Val} -> Val - end. - -remove_from_pending_ch(MsgId, ChPid, SQ) -> - case dict:find(ChPid, SQ) of - error -> - SQ; - {ok, {MQ, PendingCh}} -> - dict:store(ChPid, {MQ, sets:del_element(MsgId, PendingCh)}, SQ) - end. - -process_instruction( - {publish, Deliver, ChPid, MsgProps, Msg = #basic_message { id = MsgId }}, - State = #state { sender_queues = SQ, - backing_queue = BQ, - backing_queue_state = BQS, - msg_id_status = MS }) -> - - %% We really are going to do the publish right now, even though we - %% may not have seen it directly from the channel. As a result, we - %% may know that it needs confirming without knowing its - %% msg_seq_no, which means that we can see the confirmation come - %% back from the backing queue without knowing the msg_seq_no, - %% which means that we're going to have to hang on to the fact - %% that we've seen the msg_id confirmed until we can associate it - %% with a msg_seq_no. - State1 = ensure_monitoring(ChPid, State), - {MQ, PendingCh} = get_sender_queue(ChPid, SQ), - {MQ1, PendingCh1, MS1} = - case queue:out(MQ) of - {empty, _MQ2} -> - {MQ, sets:add_element(MsgId, PendingCh), - dict:store(MsgId, {published, ChPid}, MS)}; - {{value, {Delivery = #delivery { - msg_seq_no = MsgSeqNo, - message = #basic_message { id = MsgId } }, - _EnqueueOnPromotion}}, MQ2} -> - %% We received the msg from the channel first. Thus we - %% need to deal with confirms here. - case needs_confirming(Delivery, State1) of - never -> - {MQ2, PendingCh, MS}; - eventually -> - {MQ2, sets:add_element(MsgId, PendingCh), - dict:store(MsgId, {published, ChPid, MsgSeqNo}, MS)}; - immediately -> - ok = rabbit_channel:confirm(ChPid, [MsgSeqNo]), - {MQ2, PendingCh, MS} - end; - {{value, {#delivery {}, _EnqueueOnPromotion}}, _MQ2} -> - %% The instruction was sent to us before we were - %% within the slave_pids within the #amqqueue{} - %% record. We'll never receive the message directly - %% from the channel. And the channel will not be - %% expecting any confirms from us. - {MQ, PendingCh, MS} - end, - - SQ1 = dict:store(ChPid, {MQ1, PendingCh1}, SQ), - State2 = State1 #state { sender_queues = SQ1, msg_id_status = MS1 }, - - {ok, - case Deliver of - false -> - BQS1 = BQ:publish(Msg, MsgProps, ChPid, BQS), - State2 #state { backing_queue_state = BQS1 }; - {true, AckRequired} -> - {AckTag, BQS1} = BQ:publish_delivered(AckRequired, Msg, MsgProps, - ChPid, BQS), - maybe_store_ack(AckRequired, MsgId, AckTag, - State2 #state { backing_queue_state = BQS1 }) - end}; -process_instruction({discard, ChPid, Msg = #basic_message { id = MsgId }}, - State = #state { sender_queues = SQ, - backing_queue = BQ, - backing_queue_state = BQS, - msg_id_status = MS }) -> - %% Many of the comments around the publish head above apply here - %% too. - State1 = ensure_monitoring(ChPid, State), - {MQ, PendingCh} = get_sender_queue(ChPid, SQ), - {MQ1, PendingCh1, MS1} = - case queue:out(MQ) of - {empty, _MQ} -> - {MQ, sets:add_element(MsgId, PendingCh), - dict:store(MsgId, discarded, MS)}; - {{value, {#delivery { message = #basic_message { id = MsgId } }, - _EnqueueOnPromotion}}, MQ2} -> - %% We've already seen it from the channel, we're not - %% going to see this again, so don't add it to MS - {MQ2, PendingCh, MS}; - {{value, {#delivery {}, _EnqueueOnPromotion}}, _MQ2} -> - %% The instruction was sent to us before we were - %% within the slave_pids within the #amqqueue{} - %% record. We'll never receive the message directly - %% from the channel. - {MQ, PendingCh, MS} - end, - SQ1 = dict:store(ChPid, {MQ1, PendingCh1}, SQ), - BQS1 = BQ:discard(Msg, ChPid, BQS), - {ok, State1 #state { sender_queues = SQ1, - msg_id_status = MS1, - backing_queue_state = BQS1 }}; -process_instruction({set_length, Length}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - QLen = BQ:len(BQS), - ToDrop = QLen - Length, - {ok, case ToDrop > 0 of - true -> BQS1 = - lists:foldl( - fun (const, BQSN) -> - {{_Msg, _IsDelivered, _AckTag, _Remaining}, - BQSN1} = BQ:fetch(false, BQSN), - BQSN1 - end, BQS, lists:duplicate(ToDrop, const)), - State #state { backing_queue_state = BQS1 }; - false -> State - end}; -process_instruction({fetch, AckRequired, MsgId, Remaining}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - QLen = BQ:len(BQS), - {ok, case QLen - 1 of - Remaining -> - {{#basic_message{id = MsgId}, _IsDelivered, - AckTag, Remaining}, BQS1} = BQ:fetch(AckRequired, BQS), - maybe_store_ack(AckRequired, MsgId, AckTag, - State #state { backing_queue_state = BQS1 }); - Other when Other < Remaining -> - %% we must be shorter than the master - State - end}; -process_instruction({ack, MsgIds}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS, - msg_id_ack = MA }) -> - {AckTags, MA1} = msg_ids_to_acktags(MsgIds, MA), - {MsgIds1, BQS1} = BQ:ack(AckTags, BQS), - [] = MsgIds1 -- MsgIds, %% ASSERTION - {ok, State #state { msg_id_ack = MA1, - backing_queue_state = BQS1 }}; -process_instruction({requeue, MsgPropsFun, MsgIds}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS, - msg_id_ack = MA }) -> - {AckTags, MA1} = msg_ids_to_acktags(MsgIds, MA), - {ok, case length(AckTags) =:= length(MsgIds) of - true -> - {MsgIds, BQS1} = BQ:requeue(AckTags, MsgPropsFun, BQS), - State #state { msg_id_ack = MA1, - backing_queue_state = BQS1 }; - false -> - %% The only thing we can safely do is nuke out our BQ - %% and MA. The interaction between this and confirms - %% doesn't really bear thinking about... - {_Count, BQS1} = BQ:purge(BQS), - {_MsgIds, BQS2} = ack_all(BQ, MA, BQS1), - State #state { msg_id_ack = dict:new(), - backing_queue_state = BQS2 } - end}; -process_instruction({sender_death, ChPid}, - State = #state { sender_queues = SQ, - msg_id_status = MS, - known_senders = KS }) -> - {ok, case dict:find(ChPid, KS) of - error -> - State; - {ok, MRef} -> - true = erlang:demonitor(MRef), - MS1 = case dict:find(ChPid, SQ) of - error -> - MS; - {ok, {_MQ, PendingCh}} -> - lists:foldl(fun dict:erase/2, MS, - sets:to_list(PendingCh)) - end, - State #state { sender_queues = dict:erase(ChPid, SQ), - msg_id_status = MS1, - known_senders = dict:erase(ChPid, KS) } - end}; -process_instruction({delete_and_terminate, Reason}, - State = #state { backing_queue = BQ, - backing_queue_state = BQS }) -> - BQ:delete_and_terminate(Reason, BQS), - {stop, State #state { backing_queue_state = undefined }}. - -msg_ids_to_acktags(MsgIds, MA) -> - {AckTags, MA1} = - lists:foldl( - fun (MsgId, {Acc, MAN}) -> - case dict:find(MsgId, MA) of - error -> {Acc, MAN}; - {ok, {_Num, AckTag}} -> {[AckTag | Acc], - dict:erase(MsgId, MAN)} - end - end, {[], MA}, MsgIds), - {lists:reverse(AckTags), MA1}. - -ack_all(BQ, MA, BQS) -> - BQ:ack([AckTag || {_MsgId, {_Num, AckTag}} <- dict:to_list(MA)], BQS). - -maybe_store_ack(false, _MsgId, _AckTag, State) -> - State; -maybe_store_ack(true, MsgId, AckTag, State = #state { msg_id_ack = MA, - ack_num = Num }) -> - State #state { msg_id_ack = dict:store(MsgId, {Num, AckTag}, MA), - ack_num = Num + 1 }. diff --git a/src/rabbit_mirror_queue_slave_sup.erl b/src/rabbit_mirror_queue_slave_sup.erl deleted file mode 100644 index fc04ec79..00000000 --- a/src/rabbit_mirror_queue_slave_sup.erl +++ /dev/null @@ -1,48 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License at -%% http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the -%% License for the specific language governing rights and limitations -%% under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2010-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_mirror_queue_slave_sup). - --behaviour(supervisor2). - --export([start/0, start_link/0, start_child/2]). - --export([init/1]). - --include_lib("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start() -> - {ok, _} = - supervisor2:start_child( - rabbit_sup, - {rabbit_mirror_queue_slave_sup, - {rabbit_mirror_queue_slave_sup, start_link, []}, - transient, infinity, supervisor, [rabbit_mirror_queue_slave_sup]}), - ok. - -start_link() -> - supervisor2:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Node, Args) -> - supervisor2:start_child({?SERVER, Node}, Args). - -init([]) -> - {ok, {{simple_one_for_one_terminate, 10, 10}, - [{rabbit_mirror_queue_slave, - {rabbit_mirror_queue_slave, start_link, []}, - temporary, ?MAX_WAIT, worker, [rabbit_mirror_queue_slave]}]}}. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl deleted file mode 100644 index 3bbfb1d7..00000000 --- a/src/rabbit_misc.erl +++ /dev/null @@ -1,944 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_misc). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --include_lib("kernel/include/file.hrl"). - --export([method_record_type/1, polite_pause/0, polite_pause/1]). --export([die/1, frame_error/2, amqp_error/4, - protocol_error/3, protocol_error/4, protocol_error/1]). --export([not_found/1, assert_args_equivalence/4]). --export([dirty_read/1]). --export([table_lookup/2, set_table_value/4]). --export([r/3, r/2, r_arg/4, rs/1]). --export([enable_cover/0, report_cover/0]). --export([enable_cover/1, report_cover/1]). --export([start_cover/1]). --export([throw_on_error/2, with_exit_handler/2, filter_exit_map/2]). --export([with_user/2, with_user_and_vhost/3]). --export([execute_mnesia_transaction/1]). --export([execute_mnesia_transaction/2]). --export([execute_mnesia_tx_with_tail/1]). --export([ensure_ok/2]). --export([makenode/1, nodeparts/1, cookie_hash/0, tcp_name/3]). --export([upmap/2, map_in_order/2]). --export([table_filter/3]). --export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). --export([read_term_file/1, write_term_file/2, write_file/2, write_file/3]). --export([append_file/2, ensure_parent_dirs_exist/1]). --export([format_stderr/2]). --export([start_applications/1, stop_applications/1]). --export([unfold/2, ceil/1, queue_fold/3]). --export([sort_field_table/1]). --export([pid_to_string/1, string_to_pid/1]). --export([version_compare/2, version_compare/3]). --export([recursive_delete/1, recursive_copy/2, dict_cons/3, orddict_cons/3]). --export([get_options/2]). --export([all_module_attributes/1, build_acyclic_graph/3]). --export([now_ms/0]). --export([lock_file/1]). --export([const_ok/0, const/1]). --export([ntoa/1, ntoab/1]). --export([is_process_alive/1]). --export([pget/2, pget/3, pget_or_die/2]). --export([format_message_queue/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([resource_name/0, thunk/1]). - --type(ok_or_error() :: rabbit_types:ok_or_error(any())). --type(thunk(T) :: fun(() -> T)). --type(resource_name() :: binary()). --type(optdef() :: {flag, string()} | {option, string(), any()}). --type(channel_or_connection_exit() - :: rabbit_types:channel_exit() | rabbit_types:connection_exit()). --type(digraph_label() :: term()). --type(graph_vertex_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph_label()}])). --type(graph_edge_fun() :: - fun ((atom(), [term()]) -> [{digraph:vertex(), digraph:vertex()}])). - --spec(method_record_type/1 :: (rabbit_framing:amqp_method_record()) - -> rabbit_framing:amqp_method_name()). --spec(polite_pause/0 :: () -> 'done'). --spec(polite_pause/1 :: (non_neg_integer()) -> 'done'). --spec(die/1 :: - (rabbit_framing:amqp_exception()) -> channel_or_connection_exit()). --spec(frame_error/2 :: (rabbit_framing:amqp_method_name(), binary()) - -> rabbit_types:connection_exit()). --spec(amqp_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) - -> rabbit_types:amqp_error()). --spec(protocol_error/3 :: (rabbit_framing:amqp_exception(), string(), [any()]) - -> channel_or_connection_exit()). --spec(protocol_error/4 :: - (rabbit_framing:amqp_exception(), string(), [any()], - rabbit_framing:amqp_method_name()) -> channel_or_connection_exit()). --spec(protocol_error/1 :: - (rabbit_types:amqp_error()) -> channel_or_connection_exit()). --spec(not_found/1 :: (rabbit_types:r(atom())) -> rabbit_types:channel_exit()). --spec(assert_args_equivalence/4 :: (rabbit_framing:amqp_table(), - rabbit_framing:amqp_table(), - rabbit_types:r(any()), [binary()]) -> - 'ok' | rabbit_types:connection_exit()). --spec(dirty_read/1 :: - ({atom(), any()}) -> rabbit_types:ok_or_error2(any(), 'not_found')). --spec(table_lookup/2 :: - (rabbit_framing:amqp_table(), binary()) - -> 'undefined' | {rabbit_framing:amqp_field_type(), any()}). --spec(set_table_value/4 :: - (rabbit_framing:amqp_table(), binary(), - rabbit_framing:amqp_field_type(), rabbit_framing:amqp_value()) - -> rabbit_framing:amqp_table()). - --spec(r/2 :: (rabbit_types:vhost(), K) - -> rabbit_types:r3(rabbit_types:vhost(), K, '_') - when is_subtype(K, atom())). --spec(r/3 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, resource_name()) - -> rabbit_types:r3(rabbit_types:vhost(), K, resource_name()) - when is_subtype(K, atom())). --spec(r_arg/4 :: - (rabbit_types:vhost() | rabbit_types:r(atom()), K, - rabbit_framing:amqp_table(), binary()) - -> undefined | rabbit_types:r(K) - when is_subtype(K, atom())). --spec(rs/1 :: (rabbit_types:r(atom())) -> string()). --spec(enable_cover/0 :: () -> ok_or_error()). --spec(start_cover/1 :: ([{string(), string()} | string()]) -> 'ok'). --spec(report_cover/0 :: () -> 'ok'). --spec(enable_cover/1 :: ([file:filename() | atom()]) -> ok_or_error()). --spec(report_cover/1 :: ([file:filename() | atom()]) -> 'ok'). --spec(throw_on_error/2 :: - (atom(), thunk(rabbit_types:error(any()) | {ok, A} | A)) -> A). --spec(with_exit_handler/2 :: (thunk(A), thunk(A)) -> A). --spec(filter_exit_map/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(with_user/2 :: (rabbit_types:username(), thunk(A)) -> A). --spec(with_user_and_vhost/3 :: - (rabbit_types:username(), rabbit_types:vhost(), thunk(A)) - -> A). --spec(execute_mnesia_transaction/1 :: (thunk(A)) -> A). --spec(execute_mnesia_transaction/2 :: - (thunk(A), fun ((A, boolean()) -> B)) -> B). --spec(execute_mnesia_tx_with_tail/1 :: - (thunk(fun ((boolean()) -> B))) -> B | (fun ((boolean()) -> B))). --spec(ensure_ok/2 :: (ok_or_error(), atom()) -> 'ok'). --spec(makenode/1 :: ({string(), string()} | string()) -> node()). --spec(nodeparts/1 :: (node() | string()) -> {string(), string()}). --spec(cookie_hash/0 :: () -> string()). --spec(tcp_name/3 :: - (atom(), inet:ip_address(), rabbit_networking:ip_port()) - -> atom()). --spec(upmap/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(map_in_order/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(table_filter/3:: (fun ((A) -> boolean()), fun ((A, boolean()) -> 'ok'), - atom()) -> [A]). --spec(dirty_read_all/1 :: (atom()) -> [any()]). --spec(dirty_foreach_key/2 :: (fun ((any()) -> any()), atom()) - -> 'ok' | 'aborted'). --spec(dirty_dump_log/1 :: (file:filename()) -> ok_or_error()). --spec(read_term_file/1 :: - (file:filename()) -> {'ok', [any()]} | rabbit_types:error(any())). --spec(write_term_file/2 :: (file:filename(), [any()]) -> ok_or_error()). --spec(write_file/2 :: (file:filename(), iodata()) -> ok_or_error()). --spec(write_file/3 :: (file:filename(), iodata(), [any()]) -> ok_or_error()). --spec(append_file/2 :: (file:filename(), string()) -> ok_or_error()). --spec(ensure_parent_dirs_exist/1 :: (string()) -> 'ok'). --spec(format_stderr/2 :: (string(), [any()]) -> 'ok'). --spec(start_applications/1 :: ([atom()]) -> 'ok'). --spec(stop_applications/1 :: ([atom()]) -> 'ok'). --spec(unfold/2 :: (fun ((A) -> ({'true', B, A} | 'false')), A) -> {[B], A}). --spec(ceil/1 :: (number()) -> integer()). --spec(queue_fold/3 :: (fun ((any(), B) -> B), B, queue()) -> B). --spec(sort_field_table/1 :: - (rabbit_framing:amqp_table()) -> rabbit_framing:amqp_table()). --spec(pid_to_string/1 :: (pid()) -> string()). --spec(string_to_pid/1 :: (string()) -> pid()). --spec(version_compare/2 :: (string(), string()) -> 'lt' | 'eq' | 'gt'). --spec(version_compare/3 :: - (string(), string(), ('lt' | 'lte' | 'eq' | 'gte' | 'gt')) - -> boolean()). --spec(recursive_delete/1 :: - ([file:filename()]) - -> rabbit_types:ok_or_error({file:filename(), any()})). --spec(recursive_copy/2 :: - (file:filename(), file:filename()) - -> rabbit_types:ok_or_error({file:filename(), file:filename(), any()})). --spec(dict_cons/3 :: (any(), any(), dict()) -> dict()). --spec(orddict_cons/3 :: (any(), any(), orddict:orddict()) -> orddict:orddict()). --spec(get_options/2 :: ([optdef()], [string()]) - -> {[string()], [{string(), any()}]}). --spec(all_module_attributes/1 :: (atom()) -> [{atom(), [term()]}]). --spec(build_acyclic_graph/3 :: - (graph_vertex_fun(), graph_edge_fun(), [{atom(), [term()]}]) - -> rabbit_types:ok_or_error2(digraph(), - {'vertex', 'duplicate', digraph:vertex()} | - {'edge', ({bad_vertex, digraph:vertex()} | - {bad_edge, [digraph:vertex()]}), - digraph:vertex(), digraph:vertex()})). --spec(now_ms/0 :: () -> non_neg_integer()). --spec(lock_file/1 :: (file:filename()) -> rabbit_types:ok_or_error('eexist')). --spec(const_ok/0 :: () -> 'ok'). --spec(const/1 :: (A) -> thunk(A)). --spec(ntoa/1 :: (inet:ip_address()) -> string()). --spec(ntoab/1 :: (inet:ip_address()) -> string()). --spec(is_process_alive/1 :: (pid()) -> boolean()). --spec(pget/2 :: (term(), [term()]) -> term()). --spec(pget/3 :: (term(), [term()], term()) -> term()). --spec(pget_or_die/2 :: (term(), [term()]) -> term() | no_return()). --spec(format_message_queue/2 :: (any(), priority_queue:q()) -> term()). - --endif. - -%%---------------------------------------------------------------------------- - -method_record_type(Record) -> - element(1, Record). - -polite_pause() -> - polite_pause(3000). - -polite_pause(N) -> - receive - after N -> done - end. - -die(Error) -> - protocol_error(Error, "~w", [Error]). - -frame_error(MethodName, BinaryFields) -> - protocol_error(frame_error, "cannot decode ~w", [BinaryFields], MethodName). - -amqp_error(Name, ExplanationFormat, Params, Method) -> - Explanation = lists:flatten(io_lib:format(ExplanationFormat, Params)), - #amqp_error{name = Name, explanation = Explanation, method = Method}. - -protocol_error(Name, ExplanationFormat, Params) -> - protocol_error(Name, ExplanationFormat, Params, none). - -protocol_error(Name, ExplanationFormat, Params, Method) -> - protocol_error(amqp_error(Name, ExplanationFormat, Params, Method)). - -protocol_error(#amqp_error{} = Error) -> - exit(Error). - -not_found(R) -> protocol_error(not_found, "no ~s", [rs(R)]). - -assert_args_equivalence(Orig, New, Name, Keys) -> - [assert_args_equivalence1(Orig, New, Name, Key) || Key <- Keys], - ok. - -assert_args_equivalence1(Orig, New, Name, Key) -> - case {table_lookup(Orig, Key), table_lookup(New, Key)} of - {Same, Same} -> ok; - {Orig1, New1} -> protocol_error( - precondition_failed, - "inequivalent arg '~s' for ~s: " - "received ~s but current is ~s", - [Key, rs(Name), val(New1), val(Orig1)]) - end. - -val(undefined) -> - "none"; -val({Type, Value}) -> - Fmt = case is_binary(Value) of - true -> "the value '~s' of type '~s'"; - false -> "the value '~w' of type '~s'" - end, - lists:flatten(io_lib:format(Fmt, [Value, Type])). - -dirty_read(ReadSpec) -> - case mnesia:dirty_read(ReadSpec) of - [Result] -> {ok, Result}; - [] -> {error, not_found} - end. - -table_lookup(Table, Key) -> - case lists:keysearch(Key, 1, Table) of - {value, {_, TypeBin, ValueBin}} -> {TypeBin, ValueBin}; - false -> undefined - end. - -set_table_value(Table, Key, Type, Value) -> - sort_field_table( - lists:keystore(Key, 1, Table, {Key, Type, Value})). - -r(#resource{virtual_host = VHostPath}, Kind, Name) - when is_binary(Name) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}; -r(VHostPath, Kind, Name) when is_binary(Name) andalso is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = Name}. - -r(VHostPath, Kind) when is_binary(VHostPath) -> - #resource{virtual_host = VHostPath, kind = Kind, name = '_'}. - -r_arg(#resource{virtual_host = VHostPath}, Kind, Table, Key) -> - r_arg(VHostPath, Kind, Table, Key); -r_arg(VHostPath, Kind, Table, Key) -> - case table_lookup(Table, Key) of - {longstr, NameBin} -> r(VHostPath, Kind, NameBin); - undefined -> undefined - end. - -rs(#resource{virtual_host = VHostPath, kind = Kind, name = Name}) -> - lists:flatten(io_lib:format("~s '~s' in vhost '~s'", - [Kind, Name, VHostPath])). - -enable_cover() -> enable_cover(["."]). - -enable_cover(Dirs) -> - lists:foldl(fun (Dir, ok) -> - case cover:compile_beam_directory( - filename:join(lists:concat([Dir]),"ebin")) of - {error, _} = Err -> Err; - _ -> ok - end; - (_Dir, Err) -> - Err - end, ok, Dirs). - -start_cover(NodesS) -> - {ok, _} = cover:start([makenode(N) || N <- NodesS]), - ok. - -report_cover() -> report_cover(["."]). - -report_cover(Dirs) -> [report_cover1(lists:concat([Dir])) || Dir <- Dirs], ok. - -report_cover1(Root) -> - Dir = filename:join(Root, "cover"), - ok = filelib:ensure_dir(filename:join(Dir, "junk")), - lists:foreach(fun (F) -> file:delete(F) end, - filelib:wildcard(filename:join(Dir, "*.html"))), - {ok, SummaryFile} = file:open(filename:join(Dir, "summary.txt"), [write]), - {CT, NCT} = - lists:foldl( - fun (M,{CovTot, NotCovTot}) -> - {ok, {M, {Cov, NotCov}}} = cover:analyze(M, module), - ok = report_coverage_percentage(SummaryFile, - Cov, NotCov, M), - {ok,_} = cover:analyze_to_file( - M, - filename:join(Dir, atom_to_list(M) ++ ".html"), - [html]), - {CovTot+Cov, NotCovTot+NotCov} - end, - {0, 0}, - lists:sort(cover:modules())), - ok = report_coverage_percentage(SummaryFile, CT, NCT, 'TOTAL'), - ok = file:close(SummaryFile), - ok. - -report_coverage_percentage(File, Cov, NotCov, Mod) -> - io:fwrite(File, "~6.2f ~p~n", - [if - Cov+NotCov > 0 -> 100.0*Cov/(Cov+NotCov); - true -> 100.0 - end, - Mod]). - -throw_on_error(E, Thunk) -> - case Thunk() of - {error, Reason} -> throw({E, Reason}); - {ok, Res} -> Res; - Res -> Res - end. - -with_exit_handler(Handler, Thunk) -> - try - Thunk() - catch - exit:{R, _} when R =:= noproc; R =:= nodedown; - R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - Handler() - end. - -filter_exit_map(F, L) -> - Ref = make_ref(), - lists:filter(fun (R) -> R =/= Ref end, - [with_exit_handler( - fun () -> Ref end, - fun () -> F(I) end) || I <- L]). - -with_user(Username, Thunk) -> - fun () -> - case mnesia:read({rabbit_user, Username}) of - [] -> - mnesia:abort({no_such_user, Username}); - [_U] -> - Thunk() - end - end. - -with_user_and_vhost(Username, VHostPath, Thunk) -> - with_user(Username, rabbit_vhost:with(VHostPath, Thunk)). - -execute_mnesia_transaction(TxFun) -> - %% Making this a sync_transaction allows us to use dirty_read - %% elsewhere and get a consistent result even when that read - %% executes on a different node. - case worker_pool:submit({mnesia, sync_transaction, [TxFun]}) of - {atomic, Result} -> Result; - {aborted, Reason} -> throw({error, Reason}) - end. - - -%% Like execute_mnesia_transaction/1 with additional Pre- and Post- -%% commit function -execute_mnesia_transaction(TxFun, PrePostCommitFun) -> - case mnesia:is_transaction() of - true -> throw(unexpected_transaction); - false -> ok - end, - PrePostCommitFun(execute_mnesia_transaction( - fun () -> - Result = TxFun(), - PrePostCommitFun(Result, true), - Result - end), false). - -%% Like execute_mnesia_transaction/2, but TxFun is expected to return a -%% TailFun which gets called (only) immediately after the tx commit -execute_mnesia_tx_with_tail(TxFun) -> - case mnesia:is_transaction() of - true -> execute_mnesia_transaction(TxFun); - false -> TailFun = execute_mnesia_transaction(TxFun), - TailFun() - end. - -ensure_ok(ok, _) -> ok; -ensure_ok({error, Reason}, ErrorTag) -> throw({error, {ErrorTag, Reason}}). - -makenode({Prefix, Suffix}) -> - list_to_atom(lists:append([Prefix, "@", Suffix])); -makenode(NodeStr) -> - makenode(nodeparts(NodeStr)). - -nodeparts(Node) when is_atom(Node) -> - nodeparts(atom_to_list(Node)); -nodeparts(NodeStr) -> - case lists:splitwith(fun (E) -> E =/= $@ end, NodeStr) of - {Prefix, []} -> {_, Suffix} = nodeparts(node()), - {Prefix, Suffix}; - {Prefix, Suffix} -> {Prefix, tl(Suffix)} - end. - -cookie_hash() -> - base64:encode_to_string(erlang:md5(atom_to_list(erlang:get_cookie()))). - -tcp_name(Prefix, IPAddress, Port) - when is_atom(Prefix) andalso is_number(Port) -> - list_to_atom( - lists:flatten( - io_lib:format("~w_~s:~w", - [Prefix, inet_parse:ntoa(IPAddress), Port]))). - -%% This is a modified version of Luke Gorrie's pmap - -%% http://lukego.livejournal.com/6753.html - that doesn't care about -%% the order in which results are received. -%% -%% WARNING: This is is deliberately lightweight rather than robust -- if F -%% throws, upmap will hang forever, so make sure F doesn't throw! -upmap(F, L) -> - Parent = self(), - Ref = make_ref(), - [receive {Ref, Result} -> Result end - || _ <- [spawn(fun () -> Parent ! {Ref, F(X)} end) || X <- L]]. - -map_in_order(F, L) -> - lists:reverse( - lists:foldl(fun (E, Acc) -> [F(E) | Acc] end, [], L)). - -%% Apply a pre-post-commit function to all entries in a table that -%% satisfy a predicate, and return those entries. -%% -%% We ignore entries that have been modified or removed. -table_filter(Pred, PrePostCommitFun, TableName) -> - lists:foldl( - fun (E, Acc) -> - case execute_mnesia_transaction( - fun () -> mnesia:match_object(TableName, E, read) =/= [] - andalso Pred(E) end, - fun (false, _Tx) -> false; - (true, Tx) -> PrePostCommitFun(E, Tx), true - end) of - false -> Acc; - true -> [E | Acc] - end - end, [], dirty_read_all(TableName)). - -dirty_read_all(TableName) -> - mnesia:dirty_select(TableName, [{'$1',[],['$1']}]). - -dirty_foreach_key(F, TableName) -> - dirty_foreach_key1(F, TableName, mnesia:dirty_first(TableName)). - -dirty_foreach_key1(_F, _TableName, '$end_of_table') -> - ok; -dirty_foreach_key1(F, TableName, K) -> - case catch mnesia:dirty_next(TableName, K) of - {'EXIT', _} -> - aborted; - NextKey -> - F(K), - dirty_foreach_key1(F, TableName, NextKey) - end. - -dirty_dump_log(FileName) -> - {ok, LH} = disk_log:open([{name, dirty_dump_log}, - {mode, read_only}, - {file, FileName}]), - dirty_dump_log1(LH, disk_log:chunk(LH, start)), - disk_log:close(LH). - -dirty_dump_log1(_LH, eof) -> - io:format("Done.~n"); -dirty_dump_log1(LH, {K, Terms}) -> - io:format("Chunk: ~p~n", [Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)); -dirty_dump_log1(LH, {K, Terms, BadBytes}) -> - io:format("Bad Chunk, ~p: ~p~n", [BadBytes, Terms]), - dirty_dump_log1(LH, disk_log:chunk(LH, K)). - - -read_term_file(File) -> file:consult(File). - -write_term_file(File, Terms) -> - write_file(File, list_to_binary([io_lib:format("~w.~n", [Term]) || - Term <- Terms])). - -write_file(Path, Data) -> - write_file(Path, Data, []). - -%% write_file/3 and make_binary/1 are both based on corresponding -%% functions in the kernel/file.erl module of the Erlang R14B02 -%% release, which is licensed under the EPL. That implementation of -%% write_file/3 does not do an fsync prior to closing the file, hence -%% the existence of this version. APIs are otherwise identical. -write_file(Path, Data, Modes) -> - Modes1 = [binary, write | (Modes -- [binary, write])], - case make_binary(Data) of - Bin when is_binary(Bin) -> - case file:open(Path, Modes1) of - {ok, Hdl} -> try file:write(Hdl, Bin) of - ok -> file:sync(Hdl); - {error, _} = E -> E - after - file:close(Hdl) - end; - {error, _} = E -> E - end; - {error, _} = E -> E - end. - -make_binary(Bin) when is_binary(Bin) -> - Bin; -make_binary(List) -> - try - iolist_to_binary(List) - catch error:Reason -> - {error, Reason} - end. - - -append_file(File, Suffix) -> - case file:read_file_info(File) of - {ok, FInfo} -> append_file(File, FInfo#file_info.size, Suffix); - {error, enoent} -> append_file(File, 0, Suffix); - Error -> Error - end. - -append_file(_, _, "") -> - ok; -append_file(File, 0, Suffix) -> - case file:open([File, Suffix], [append]) of - {ok, Fd} -> file:close(Fd); - Error -> Error - end; -append_file(File, _, Suffix) -> - case file:read_file(File) of - {ok, Data} -> write_file([File, Suffix], Data, [append]); - Error -> Error - end. - -ensure_parent_dirs_exist(Filename) -> - case filelib:ensure_dir(Filename) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_parent_dirs, Filename, Reason}}) - end. - -format_stderr(Fmt, Args) -> - case os:type() of - {unix, _} -> - Port = open_port({fd, 0, 2}, [out]), - port_command(Port, io_lib:format(Fmt, Args)), - port_close(Port); - {win32, _} -> - %% stderr on Windows is buffered and I can't figure out a - %% way to trigger a fflush(stderr) in Erlang. So rather - %% than risk losing output we write to stdout instead, - %% which appears to be unbuffered. - io:format(Fmt, Args) - end, - ok. - -manage_applications(Iterate, Do, Undo, SkipError, ErrorTag, Apps) -> - Iterate(fun (App, Acc) -> - case Do(App) of - ok -> [App | Acc]; - {error, {SkipError, _}} -> Acc; - {error, Reason} -> - lists:foreach(Undo, Acc), - throw({error, {ErrorTag, App, Reason}}) - end - end, [], Apps), - ok. - -start_applications(Apps) -> - manage_applications(fun lists:foldl/3, - fun application:start/1, - fun application:stop/1, - already_started, - cannot_start_application, - Apps). - -stop_applications(Apps) -> - manage_applications(fun lists:foldr/3, - fun application:stop/1, - fun application:start/1, - not_started, - cannot_stop_application, - Apps). - -unfold(Fun, Init) -> - unfold(Fun, [], Init). - -unfold(Fun, Acc, Init) -> - case Fun(Init) of - {true, E, I} -> unfold(Fun, [E|Acc], I); - false -> {Acc, Init} - end. - -ceil(N) -> - T = trunc(N), - case N == T of - true -> T; - false -> 1 + T - end. - -queue_fold(Fun, Init, Q) -> - case queue:out(Q) of - {empty, _Q} -> Init; - {{value, V}, Q1} -> queue_fold(Fun, Fun(V, Init), Q1) - end. - -%% Sorts a list of AMQP table fields as per the AMQP spec -sort_field_table(Arguments) -> - lists:keysort(1, Arguments). - -%% This provides a string representation of a pid that is the same -%% regardless of what node we are running on. The representation also -%% permits easy identification of the pid's node. -pid_to_string(Pid) when is_pid(Pid) -> - %% see http://erlang.org/doc/apps/erts/erl_ext_dist.html (8.10 and - %% 8.7) - <<131,103,100,NodeLen:16,NodeBin:NodeLen/binary,Id:32,Ser:32,Cre:8>> - = term_to_binary(Pid), - Node = binary_to_term(<<131,100,NodeLen:16,NodeBin:NodeLen/binary>>), - lists:flatten(io_lib:format("<~w.~B.~B.~B>", [Node, Cre, Id, Ser])). - -%% inverse of above -string_to_pid(Str) -> - Err = {error, {invalid_pid_syntax, Str}}, - %% The \ before the trailing $ is only there to keep emacs - %% font-lock from getting confused. - case re:run(Str, "^<(.*)\\.(\\d+)\\.(\\d+)\\.(\\d+)>\$", - [{capture,all_but_first,list}]) of - {match, [NodeStr, CreStr, IdStr, SerStr]} -> - %% the NodeStr atom might be quoted, so we have to parse - %% it rather than doing a simple list_to_atom - NodeAtom = case erl_scan:string(NodeStr) of - {ok, [{atom, _, X}], _} -> X; - {error, _, _} -> throw(Err) - end, - <<131,NodeEnc/binary>> = term_to_binary(NodeAtom), - [Cre, Id, Ser] = lists:map(fun list_to_integer/1, - [CreStr, IdStr, SerStr]), - binary_to_term(<<131,103,NodeEnc/binary,Id:32,Ser:32,Cre:8>>); - nomatch -> - throw(Err) - end. - -version_compare(A, B, lte) -> - case version_compare(A, B) of - eq -> true; - lt -> true; - gt -> false - end; -version_compare(A, B, gte) -> - case version_compare(A, B) of - eq -> true; - gt -> true; - lt -> false - end; -version_compare(A, B, Result) -> - Result =:= version_compare(A, B). - -version_compare(A, A) -> - eq; -version_compare([], [$0 | B]) -> - version_compare([], dropdot(B)); -version_compare([], _) -> - lt; %% 2.3 < 2.3.1 -version_compare([$0 | A], []) -> - version_compare(dropdot(A), []); -version_compare(_, []) -> - gt; %% 2.3.1 > 2.3 -version_compare(A, B) -> - {AStr, ATl} = lists:splitwith(fun (X) -> X =/= $. end, A), - {BStr, BTl} = lists:splitwith(fun (X) -> X =/= $. end, B), - ANum = list_to_integer(AStr), - BNum = list_to_integer(BStr), - if ANum =:= BNum -> version_compare(dropdot(ATl), dropdot(BTl)); - ANum < BNum -> lt; - ANum > BNum -> gt - end. - -dropdot(A) -> lists:dropwhile(fun (X) -> X =:= $. end, A). - -recursive_delete(Files) -> - lists:foldl(fun (Path, ok ) -> recursive_delete1(Path); - (_Path, {error, _Err} = Error) -> Error - end, ok, Files). - -recursive_delete1(Path) -> - case filelib:is_dir(Path) of - false -> case file:delete(Path) of - ok -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Path, Err}} - end; - true -> case file:list_dir(Path) of - {ok, FileNames} -> - case lists:foldl( - fun (FileName, ok) -> - recursive_delete1( - filename:join(Path, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames) of - ok -> - case file:del_dir(Path) of - ok -> ok; - {error, Err} -> {error, {Path, Err}} - end; - {error, _Err} = Error -> - Error - end; - {error, Err} -> - {error, {Path, Err}} - end - end. - -recursive_copy(Src, Dest) -> - case filelib:is_dir(Src) of - false -> case file:copy(Src, Dest) of - {ok, _Bytes} -> ok; - {error, enoent} -> ok; %% Path doesn't exist anyway - {error, Err} -> {error, {Src, Dest, Err}} - end; - true -> case file:list_dir(Src) of - {ok, FileNames} -> - case file:make_dir(Dest) of - ok -> - lists:foldl( - fun (FileName, ok) -> - recursive_copy( - filename:join(Src, FileName), - filename:join(Dest, FileName)); - (_FileName, Error) -> - Error - end, ok, FileNames); - {error, Err} -> - {error, {Src, Dest, Err}} - end; - {error, Err} -> - {error, {Src, Dest, Err}} - end - end. - -dict_cons(Key, Value, Dict) -> - dict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -orddict_cons(Key, Value, Dict) -> - orddict:update(Key, fun (List) -> [Value | List] end, [Value], Dict). - -%% Separate flags and options from arguments. -%% get_options([{flag, "-q"}, {option, "-p", "/"}], -%% ["set_permissions","-p","/","guest", -%% "-q",".*",".*",".*"]) -%% == {["set_permissions","guest",".*",".*",".*"], -%% [{"-q",true},{"-p","/"}]} -get_options(Defs, As) -> - lists:foldl(fun(Def, {AsIn, RsIn}) -> - {AsOut, Value} = case Def of - {flag, Key} -> - get_flag(Key, AsIn); - {option, Key, Default} -> - get_option(Key, Default, AsIn) - end, - {AsOut, [{Key, Value} | RsIn]} - end, {As, []}, Defs). - -get_option(K, _Default, [K, V | As]) -> - {As, V}; -get_option(K, Default, [Nk | As]) -> - {As1, V} = get_option(K, Default, As), - {[Nk | As1], V}; -get_option(_, Default, As) -> - {As, Default}. - -get_flag(K, [K | As]) -> - {As, true}; -get_flag(K, [Nk | As]) -> - {As1, V} = get_flag(K, As), - {[Nk | As1], V}; -get_flag(_, []) -> - {[], false}. - -now_ms() -> - timer:now_diff(now(), {0,0,0}) div 1000. - -module_attributes(Module) -> - case catch Module:module_info(attributes) of - {'EXIT', {undef, [{Module, module_info, _} | _]}} -> - io:format("WARNING: module ~p not found, so not scanned for boot steps.~n", - [Module]), - []; - {'EXIT', Reason} -> - exit(Reason); - V -> - V - end. - -all_module_attributes(Name) -> - Modules = - lists:usort( - lists:append( - [Modules || {App, _, _} <- application:loaded_applications(), - {ok, Modules} <- [application:get_key(App, modules)]])), - lists:foldl( - fun (Module, Acc) -> - case lists:append([Atts || {N, Atts} <- module_attributes(Module), - N =:= Name]) of - [] -> Acc; - Atts -> [{Module, Atts} | Acc] - end - end, [], Modules). - - -build_acyclic_graph(VertexFun, EdgeFun, Graph) -> - G = digraph:new([acyclic]), - try - [case digraph:vertex(G, Vertex) of - false -> digraph:add_vertex(G, Vertex, Label); - _ -> ok = throw({graph_error, {vertex, duplicate, Vertex}}) - end || {Module, Atts} <- Graph, - {Vertex, Label} <- VertexFun(Module, Atts)], - [case digraph:add_edge(G, From, To) of - {error, E} -> throw({graph_error, {edge, E, From, To}}); - _ -> ok - end || {Module, Atts} <- Graph, - {From, To} <- EdgeFun(Module, Atts)], - {ok, G} - catch {graph_error, Reason} -> - true = digraph:delete(G), - {error, Reason} - end. - -%% TODO: When we stop supporting Erlang prior to R14, this should be -%% replaced with file:open [write, exclusive] -lock_file(Path) -> - case filelib:is_file(Path) of - true -> {error, eexist}; - false -> {ok, Lock} = file:open(Path, [write]), - ok = file:close(Lock) - end. - -const_ok() -> ok. -const(X) -> fun () -> X end. - -%% Format IPv4-mapped IPv6 addresses as IPv4, since they're what we see -%% when IPv6 is enabled but not used (i.e. 99% of the time). -ntoa({0,0,0,0,0,16#ffff,AB,CD}) -> - inet_parse:ntoa({AB bsr 8, AB rem 256, CD bsr 8, CD rem 256}); -ntoa(IP) -> - inet_parse:ntoa(IP). - -ntoab(IP) -> - Str = ntoa(IP), - case string:str(Str, ":") of - 0 -> Str; - _ -> "[" ++ Str ++ "]" - end. - -is_process_alive(Pid) when node(Pid) =:= node() -> - erlang:is_process_alive(Pid); -is_process_alive(Pid) -> - case rpc:call(node(Pid), erlang, is_process_alive, [Pid]) of - true -> true; - _ -> false - end. - -pget(K, P) -> proplists:get_value(K, P). -pget(K, P, D) -> proplists:get_value(K, P, D). - -pget_or_die(K, P) -> - case proplists:get_value(K, P) of - undefined -> exit({error, key_missing, K}); - V -> V - end. - -format_message_queue(_Opt, MQ) -> - Len = priority_queue:len(MQ), - {Len, - case Len > 100 of - false -> priority_queue:to_list(MQ); - true -> {summary, - orddict:to_list( - lists:foldl( - fun ({P, V}, Counts) -> - orddict:update_counter( - {P, format_message_queue_entry(V)}, 1, Counts) - end, orddict:new(), priority_queue:to_list(MQ)))} - end}. - -format_message_queue_entry(V) when is_atom(V) -> - V; -format_message_queue_entry(V) when is_tuple(V) -> - list_to_tuple([format_message_queue_entry(E) || E <- tuple_to_list(V)]); -format_message_queue_entry(_V) -> - '_'. diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl deleted file mode 100644 index ab553a8b..00000000 --- a/src/rabbit_mnesia.erl +++ /dev/null @@ -1,746 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - - --module(rabbit_mnesia). - --export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/1, force_cluster/1, reset/0, force_reset/0, init_db/3, - is_clustered/0, running_clustered_nodes/0, all_clustered_nodes/0, - empty_ram_only_tables/0, copy_db/1, wait_for_tables/1, - create_cluster_nodes_config/1, read_cluster_nodes_config/0, - record_running_nodes/0, read_previously_running_nodes/0, - delete_previously_running_nodes/0, running_nodes_filename/0, - is_disc_node/0]). - --export([table_names/0]). - -%% create_tables/0 exported for helping embed RabbitMQ in or alongside -%% other mnesia-using Erlang applications, such as ejabberd --export([create_tables/0]). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([node_type/0]). - --type(node_type() :: disc_only | disc | ram | unknown). --spec(status/0 :: () -> [{'nodes', [{node_type(), [node()]}]} | - {'running_nodes', [node()]}]). --spec(dir/0 :: () -> file:filename()). --spec(ensure_mnesia_dir/0 :: () -> 'ok'). --spec(init/0 :: () -> 'ok'). --spec(init_db/3 :: ([node()], boolean(), rabbit_misc:thunk('ok')) -> 'ok'). --spec(is_db_empty/0 :: () -> boolean()). --spec(cluster/1 :: ([node()]) -> 'ok'). --spec(force_cluster/1 :: ([node()]) -> 'ok'). --spec(cluster/2 :: ([node()], boolean()) -> 'ok'). --spec(reset/0 :: () -> 'ok'). --spec(force_reset/0 :: () -> 'ok'). --spec(is_clustered/0 :: () -> boolean()). --spec(running_clustered_nodes/0 :: () -> [node()]). --spec(all_clustered_nodes/0 :: () -> [node()]). --spec(empty_ram_only_tables/0 :: () -> 'ok'). --spec(create_tables/0 :: () -> 'ok'). --spec(copy_db/1 :: (file:filename()) -> rabbit_types:ok_or_error(any())). --spec(wait_for_tables/1 :: ([atom()]) -> 'ok'). --spec(create_cluster_nodes_config/1 :: ([node()]) -> 'ok'). --spec(read_cluster_nodes_config/0 :: () -> [node()]). --spec(record_running_nodes/0 :: () -> 'ok'). --spec(read_previously_running_nodes/0 :: () -> [node()]). --spec(delete_previously_running_nodes/0 :: () -> 'ok'). --spec(running_nodes_filename/0 :: () -> file:filename()). --spec(is_disc_node/0 :: () -> boolean()). - --endif. - -%%---------------------------------------------------------------------------- - -status() -> - [{nodes, case mnesia:system_info(is_running) of - yes -> [{Key, Nodes} || - {Key, CopyType} <- [{disc_only, disc_only_copies}, - {disc, disc_copies}, - {ram, ram_copies}], - begin - Nodes = nodes_of_type(CopyType), - Nodes =/= [] - end]; - no -> case all_clustered_nodes() of - [] -> []; - Nodes -> [{unknown, Nodes}] - end - end}, - {running_nodes, running_clustered_nodes()}]. - -init() -> - ensure_mnesia_running(), - ensure_mnesia_dir(), - ok = init_db(read_cluster_nodes_config(), true, - fun maybe_upgrade_local_or_record_desired/0), - %% We intuitively expect the global name server to be synced when - %% Mnesia is up. In fact that's not guaranteed to be the case - let's - %% make it so. - ok = global:sync(), - ok. - -is_db_empty() -> - lists:all(fun (Tab) -> mnesia:dirty_first(Tab) == '$end_of_table' end, - table_names()). - -cluster(ClusterNodes) -> - cluster(ClusterNodes, false). -force_cluster(ClusterNodes) -> - cluster(ClusterNodes, true). - -%% Alter which disk nodes this node is clustered with. This can be a -%% subset of all the disk nodes in the cluster but can (and should) -%% include the node itself if it is to be a disk rather than a ram -%% node. If Force is false, only connections to online nodes are -%% allowed. -cluster(ClusterNodes, Force) -> - ensure_mnesia_not_running(), - ensure_mnesia_dir(), - - %% Wipe mnesia if we're changing type from disc to ram - case {is_disc_node(), should_be_disc_node(ClusterNodes)} of - {true, false} -> error_logger:warning_msg( - "changing node type; wiping mnesia...~n~n"), - rabbit_misc:ensure_ok(mnesia:delete_schema([node()]), - cannot_delete_schema); - _ -> ok - end, - - %% Pre-emptively leave the cluster - %% - %% We're trying to handle the following two cases: - %% 1. We have a two-node cluster, where both nodes are disc nodes. - %% One node is re-clustered as a ram node. When it tries to - %% re-join the cluster, but before it has time to update its - %% tables definitions, the other node will order it to re-create - %% its disc tables. So, we need to leave the cluster before we - %% can join it again. - %% 2. We have a two-node cluster, where both nodes are disc nodes. - %% One node is forcefully reset (so, the other node thinks its - %% still a part of the cluster). The reset node is re-clustered - %% as a ram node. Same as above, we need to leave the cluster - %% before we can join it. But, since we don't know if we're in a - %% cluster or not, we just pre-emptively leave it before joining. - ProperClusterNodes = ClusterNodes -- [node()], - try - ok = leave_cluster(ProperClusterNodes, ProperClusterNodes) - catch - {error, {no_running_cluster_nodes, _, _}} when Force -> - ok - end, - - %% Join the cluster - start_mnesia(), - try - ok = init_db(ClusterNodes, Force, - fun maybe_upgrade_local_or_record_desired/0), - ok = create_cluster_nodes_config(ClusterNodes) - after - stop_mnesia() - end, - ok. - -%% return node to its virgin state, where it is not member of any -%% cluster, has no cluster configuration, no local database, and no -%% persisted messages -reset() -> reset(false). -force_reset() -> reset(true). - -is_clustered() -> - RunningNodes = running_clustered_nodes(), - [node()] /= RunningNodes andalso [] /= RunningNodes. - -all_clustered_nodes() -> - mnesia:system_info(db_nodes). - -running_clustered_nodes() -> - mnesia:system_info(running_db_nodes). - -empty_ram_only_tables() -> - Node = node(), - lists:foreach( - fun (TabName) -> - case lists:member(Node, mnesia:table_info(TabName, ram_copies)) of - true -> {atomic, ok} = mnesia:clear_table(TabName); - false -> ok - end - end, table_names()), - ok. - -%%-------------------------------------------------------------------- - -nodes_of_type(Type) -> - %% This function should return the nodes of a certain type (ram, - %% disc or disc_only) in the current cluster. The type of nodes - %% is determined when the cluster is initially configured. - mnesia:table_info(schema, Type). - -%% The tables aren't supposed to be on disk on a ram node -table_definitions(disc) -> - table_definitions(); -table_definitions(ram) -> - [{Tab, copy_type_to_ram(TabDef)} || {Tab, TabDef} <- table_definitions()]. - -table_definitions() -> - [{rabbit_user, - [{record_name, internal_user}, - {attributes, record_info(fields, internal_user)}, - {disc_copies, [node()]}, - {match, #internal_user{_='_'}}]}, - {rabbit_user_permission, - [{record_name, user_permission}, - {attributes, record_info(fields, user_permission)}, - {disc_copies, [node()]}, - {match, #user_permission{user_vhost = #user_vhost{_='_'}, - permission = #permission{_='_'}, - _='_'}}]}, - {rabbit_vhost, - [{record_name, vhost}, - {attributes, record_info(fields, vhost)}, - {disc_copies, [node()]}, - {match, #vhost{_='_'}}]}, - {rabbit_listener, - [{record_name, listener}, - {attributes, record_info(fields, listener)}, - {type, bag}, - {match, #listener{_='_'}}]}, - {rabbit_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {disc_copies, [node()]}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_semi_durable_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_route, - [{record_name, route}, - {attributes, record_info(fields, route)}, - {type, ordered_set}, - {match, #route{binding = binding_match(), _='_'}}]}, - {rabbit_reverse_route, - [{record_name, reverse_route}, - {attributes, record_info(fields, reverse_route)}, - {type, ordered_set}, - {match, #reverse_route{reverse_binding = reverse_binding_match(), - _='_'}}]}, - {rabbit_topic_trie_edge, - [{record_name, topic_trie_edge}, - {attributes, record_info(fields, topic_trie_edge)}, - {type, ordered_set}, - {match, #topic_trie_edge{trie_edge = trie_edge_match(), _='_'}}]}, - {rabbit_topic_trie_binding, - [{record_name, topic_trie_binding}, - {attributes, record_info(fields, topic_trie_binding)}, - {type, ordered_set}, - {match, #topic_trie_binding{trie_binding = trie_binding_match(), - _='_'}}]}, - {rabbit_durable_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {disc_copies, [node()]}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_exchange, - [{record_name, exchange}, - {attributes, record_info(fields, exchange)}, - {match, #exchange{name = exchange_name_match(), _='_'}}]}, - {rabbit_exchange_serial, - [{record_name, exchange_serial}, - {attributes, record_info(fields, exchange_serial)}, - {match, #exchange_serial{name = exchange_name_match(), _='_'}}]}, - {rabbit_durable_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {disc_copies, [node()]}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}, - {rabbit_queue, - [{record_name, amqqueue}, - {attributes, record_info(fields, amqqueue)}, - {match, #amqqueue{name = queue_name_match(), _='_'}}]}] - ++ gm:table_definitions(). - -binding_match() -> - #binding{source = exchange_name_match(), - destination = binding_destination_match(), - _='_'}. -reverse_binding_match() -> - #reverse_binding{destination = binding_destination_match(), - source = exchange_name_match(), - _='_'}. -binding_destination_match() -> - resource_match('_'). -trie_edge_match() -> - #trie_edge{exchange_name = exchange_name_match(), - _='_'}. -trie_binding_match() -> - #trie_binding{exchange_name = exchange_name_match(), - _='_'}. -exchange_name_match() -> - resource_match(exchange). -queue_name_match() -> - resource_match(queue). -resource_match(Kind) -> - #resource{kind = Kind, _='_'}. - -table_names() -> - [Tab || {Tab, _} <- table_definitions()]. - -replicated_table_names() -> - [Tab || {Tab, TabDef} <- table_definitions(), - not lists:member({local_content, true}, TabDef) - ]. - -dir() -> mnesia:system_info(directory). - -ensure_mnesia_dir() -> - MnesiaDir = dir() ++ "/", - case filelib:ensure_dir(MnesiaDir) of - {error, Reason} -> - throw({error, {cannot_create_mnesia_dir, MnesiaDir, Reason}}); - ok -> - ok - end. - -ensure_mnesia_running() -> - case mnesia:system_info(is_running) of - yes -> ok; - no -> throw({error, mnesia_not_running}) - end. - -ensure_mnesia_not_running() -> - case mnesia:system_info(is_running) of - no -> ok; - yes -> throw({error, mnesia_unexpectedly_running}) - end. - -ensure_schema_integrity() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - throw({error, {schema_integrity_check_failed, Reason}}) - end. - -check_schema_integrity() -> - Tables = mnesia:system_info(tables), - case check_tables(fun (Tab, TabDef) -> - case lists:member(Tab, Tables) of - false -> {error, {table_missing, Tab}}; - true -> check_table_attributes(Tab, TabDef) - end - end) of - ok -> ok = wait_for_tables(), - check_tables(fun check_table_content/2); - Other -> Other - end. - -check_table_attributes(Tab, TabDef) -> - {_, ExpAttrs} = proplists:lookup(attributes, TabDef), - case mnesia:table_info(Tab, attributes) of - ExpAttrs -> ok; - Attrs -> {error, {table_attributes_mismatch, Tab, ExpAttrs, Attrs}} - end. - -check_table_content(Tab, TabDef) -> - {_, Match} = proplists:lookup(match, TabDef), - case mnesia:dirty_first(Tab) of - '$end_of_table' -> - ok; - Key -> - ObjList = mnesia:dirty_read(Tab, Key), - MatchComp = ets:match_spec_compile([{Match, [], ['$_']}]), - case ets:match_spec_run(ObjList, MatchComp) of - ObjList -> ok; - _ -> {error, {table_content_invalid, Tab, Match, ObjList}} - end - end. - -check_tables(Fun) -> - case [Error || {Tab, TabDef} <- table_definitions( - case is_disc_node() of - true -> disc; - false -> ram - end), - case Fun(Tab, TabDef) of - ok -> Error = none, false; - {error, Error} -> true - end] of - [] -> ok; - Errors -> {error, Errors} - end. - -%% The cluster node config file contains some or all of the disk nodes -%% that are members of the cluster this node is / should be a part of. -%% -%% If the file is absent, the list is empty, or only contains the -%% current node, then the current node is a standalone (disk) -%% node. Otherwise it is a node that is part of a cluster as either a -%% disk node, if it appears in the cluster node config, or ram node if -%% it doesn't. - -cluster_nodes_config_filename() -> - dir() ++ "/cluster_nodes.config". - -create_cluster_nodes_config(ClusterNodes) -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:write_term_file(FileName, [ClusterNodes]) of - ok -> ok; - {error, Reason} -> - throw({error, {cannot_create_cluster_nodes_config, - FileName, Reason}}) - end. - -read_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [ClusterNodes]} -> ClusterNodes; - {error, enoent} -> - {ok, ClusterNodes} = application:get_env(rabbit, cluster_nodes), - ClusterNodes; - {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - FileName, Reason}}) - end. - -delete_cluster_nodes_config() -> - FileName = cluster_nodes_config_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> - throw({error, {cannot_delete_cluster_nodes_config, - FileName, Reason}}) - end. - -running_nodes_filename() -> - filename:join(dir(), "nodes_running_at_shutdown"). - -record_running_nodes() -> - FileName = running_nodes_filename(), - Nodes = running_clustered_nodes() -- [node()], - %% Don't check the result: we're shutting down anyway and this is - %% a best-effort-basis. - rabbit_misc:write_term_file(FileName, [Nodes]), - ok. - -read_previously_running_nodes() -> - FileName = running_nodes_filename(), - case rabbit_misc:read_term_file(FileName) of - {ok, [Nodes]} -> Nodes; - {error, enoent} -> []; - {error, Reason} -> throw({error, {cannot_read_previous_nodes_file, - FileName, Reason}}) - end. - -delete_previously_running_nodes() -> - FileName = running_nodes_filename(), - case file:delete(FileName) of - ok -> ok; - {error, enoent} -> ok; - {error, Reason} -> throw({error, {cannot_delete_previous_nodes_file, - FileName, Reason}}) - end. - -%% Take a cluster node config and create the right kind of node - a -%% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. If Force is false, don't allow -%% connections to offline nodes. -init_db(ClusterNodes, Force, SecondaryPostMnesiaFun) -> - UClusterNodes = lists:usort(ClusterNodes), - ProperClusterNodes = UClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ProperClusterNodes) of - {ok, Nodes} -> - case Force of - false -> FailedClusterNodes = ProperClusterNodes -- Nodes, - case FailedClusterNodes of - [] -> ok; - _ -> throw({error, {failed_to_cluster_with, - FailedClusterNodes, - "Mnesia could not connect " - "to some nodes."}}) - end; - true -> ok - end, - WantDiscNode = should_be_disc_node(ClusterNodes), - WasDiscNode = is_disc_node(), - %% We create a new db (on disk, or in ram) in the first - %% two cases and attempt to upgrade the in the other two - case {Nodes, WasDiscNode, WantDiscNode} of - {[], _, false} -> - %% New ram node; start from scratch - ok = create_schema(ram); - {[], false, true} -> - %% Nothing there at all, start from scratch - ok = create_schema(disc); - {[], true, true} -> - %% We're the first node up - case rabbit_upgrade:maybe_upgrade_local() of - ok -> ensure_schema_integrity(); - version_not_available -> ok = schema_ok_or_move() - end; - {[AnotherNode|_], _, _} -> - %% Subsequent node in cluster, catch up - ensure_version_ok( - rpc:call(AnotherNode, rabbit_version, recorded, [])), - {CopyType, CopyTypeAlt} = - case WantDiscNode of - true -> {disc, disc_copies}; - false -> {ram, ram_copies} - end, - ok = wait_for_replicated_tables(), - ok = create_local_table_copy(schema, CopyTypeAlt), - ok = create_local_table_copies(CopyType), - - ok = SecondaryPostMnesiaFun(), - %% We've taken down mnesia, so ram nodes will need - %% to re-sync - case is_disc_node() of - false -> start_mnesia(), - mnesia:change_config(extra_db_nodes, - ProperClusterNodes), - wait_for_replicated_tables(); - true -> ok - end, - - ensure_schema_integrity(), - ok - end; - {error, Reason} -> - %% one reason we may end up here is if we try to join - %% nodes together that are currently running standalone or - %% are members of a different cluster - throw({error, {unable_to_join_cluster, ClusterNodes, Reason}}) - end. - -maybe_upgrade_local_or_record_desired() -> - case rabbit_upgrade:maybe_upgrade_local() of - ok -> ok; - %% If we're just starting up a new node we won't have a - %% version - version_not_available -> ok = rabbit_version:record_desired() - end. - -schema_ok_or_move() -> - case check_schema_integrity() of - ok -> - ok; - {error, Reason} -> - %% NB: we cannot use rabbit_log here since it may not have been - %% started yet - error_logger:warning_msg("schema integrity check failed: ~p~n" - "moving database to backup location " - "and recreating schema from scratch~n", - [Reason]), - ok = move_db(), - ok = create_schema(disc) - end. - -ensure_version_ok({ok, DiscVersion}) -> - DesiredVersion = rabbit_version:desired(), - case rabbit_version:matches(DesiredVersion, DiscVersion) of - true -> ok; - false -> throw({error, {version_mismatch, DesiredVersion, DiscVersion}}) - end; -ensure_version_ok({error, _}) -> - ok = rabbit_version:record_desired(). - -create_schema(Type) -> - stop_mnesia(), - case Type of - disc -> rabbit_misc:ensure_ok(mnesia:create_schema([node()]), - cannot_create_schema); - ram -> %% remove the disc schema since this is a ram node - rabbit_misc:ensure_ok(mnesia:delete_schema([node()]), - cannot_delete_schema) - end, - start_mnesia(), - ok = create_tables(Type), - ensure_schema_integrity(), - ok = rabbit_version:record_desired(). - -is_disc_node() -> mnesia:system_info(use_dir). - -should_be_disc_node(ClusterNodes) -> - ClusterNodes == [] orelse lists:member(node(), ClusterNodes). - -move_db() -> - stop_mnesia(), - MnesiaDir = filename:dirname(dir() ++ "/"), - {{Year, Month, Day}, {Hour, Minute, Second}} = erlang:universaltime(), - BackupDir = lists:flatten( - io_lib:format("~s_~w~2..0w~2..0w~2..0w~2..0w~2..0w", - [MnesiaDir, - Year, Month, Day, Hour, Minute, Second])), - case file:rename(MnesiaDir, BackupDir) of - ok -> - %% NB: we cannot use rabbit_log here since it may not have - %% been started yet - error_logger:warning_msg("moved database from ~s to ~s~n", - [MnesiaDir, BackupDir]), - ok; - {error, Reason} -> throw({error, {cannot_backup_mnesia, - MnesiaDir, BackupDir, Reason}}) - end, - ensure_mnesia_dir(), - start_mnesia(), - ok. - -copy_db(Destination) -> - ok = ensure_mnesia_not_running(), - rabbit_misc:recursive_copy(dir(), Destination). - -create_tables() -> create_tables(disc). - -create_tables(Type) -> - lists:foreach(fun ({Tab, TabDef}) -> - TabDef1 = proplists:delete(match, TabDef), - case mnesia:create_table(Tab, TabDef1) of - {atomic, ok} -> ok; - {aborted, Reason} -> - throw({error, {table_creation_failed, - Tab, TabDef1, Reason}}) - end - end, - table_definitions(Type)), - ok. - -copy_type_to_ram(TabDef) -> - [{disc_copies, []}, {ram_copies, [node()]} - | proplists:delete(ram_copies, proplists:delete(disc_copies, TabDef))]. - -table_has_copy_type(TabDef, DiscType) -> - lists:member(node(), proplists:get_value(DiscType, TabDef, [])). - -create_local_table_copies(Type) -> - lists:foreach( - fun ({Tab, TabDef}) -> - HasDiscCopies = table_has_copy_type(TabDef, disc_copies), - HasDiscOnlyCopies = table_has_copy_type(TabDef, disc_only_copies), - LocalTab = proplists:get_bool(local_content, TabDef), - StorageType = - if - Type =:= disc orelse LocalTab -> - if - HasDiscCopies -> disc_copies; - HasDiscOnlyCopies -> disc_only_copies; - true -> ram_copies - end; -%%% unused code - commented out to keep dialyzer happy -%%% Type =:= disc_only -> -%%% if -%%% HasDiscCopies or HasDiscOnlyCopies -> -%%% disc_only_copies; -%%% true -> ram_copies -%%% end; - Type =:= ram -> - ram_copies - end, - ok = create_local_table_copy(Tab, StorageType) - end, - table_definitions(Type)), - ok. - -create_local_table_copy(Tab, Type) -> - StorageType = mnesia:table_info(Tab, storage_type), - {atomic, ok} = - if - StorageType == unknown -> - mnesia:add_table_copy(Tab, node(), Type); - StorageType /= Type -> - mnesia:change_table_copy_type(Tab, node(), Type); - true -> {atomic, ok} - end, - ok. - -wait_for_replicated_tables() -> wait_for_tables(replicated_table_names()). - -wait_for_tables() -> wait_for_tables(table_names()). - -wait_for_tables(TableNames) -> - case mnesia:wait_for_tables(TableNames, 30000) of - ok -> - ok; - {timeout, BadTabs} -> - throw({error, {timeout_waiting_for_tables, BadTabs}}); - {error, Reason} -> - throw({error, {failed_waiting_for_tables, Reason}}) - end. - -reset(Force) -> - ensure_mnesia_not_running(), - Node = node(), - case Force of - true -> ok; - false -> - ensure_mnesia_dir(), - start_mnesia(), - {Nodes, RunningNodes} = - try - ok = init(), - {all_clustered_nodes() -- [Node], - running_clustered_nodes() -- [Node]} - after - stop_mnesia() - end, - leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) - end, - ok = delete_cluster_nodes_config(), - %% remove persisted messages and any other garbage we find - ok = rabbit_misc:recursive_delete(filelib:wildcard(dir() ++ "/*")), - ok. - -leave_cluster([], _) -> ok; -leave_cluster(Nodes, RunningNodes) -> - %% find at least one running cluster node and instruct it to - %% remove our schema copy which will in turn result in our node - %% being removed as a cluster node from the schema, with that - %% change being propagated to all nodes - case lists:any( - fun (Node) -> - case rpc:call(Node, mnesia, del_table_copy, - [schema, node()]) of - {atomic, ok} -> true; - {badrpc, nodedown} -> false; - {aborted, {node_not_running, _}} -> false; - {aborted, Reason} -> - throw({error, {failed_to_leave_cluster, - Nodes, RunningNodes, Reason}}) - end - end, - RunningNodes) of - true -> ok; - false -> throw({error, {no_running_cluster_nodes, - Nodes, RunningNodes}}) - end. - -start_mnesia() -> - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ensure_mnesia_running(). - -stop_mnesia() -> - stopped = mnesia:stop(), - ensure_mnesia_not_running(). diff --git a/src/rabbit_msg_file.erl b/src/rabbit_msg_file.erl deleted file mode 100644 index b7de27d4..00000000 --- a/src/rabbit_msg_file.erl +++ /dev/null @@ -1,125 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_file). - --export([append/3, read/2, scan/4]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(INTEGER_SIZE_BYTES, 8). --define(INTEGER_SIZE_BITS, (8 * ?INTEGER_SIZE_BYTES)). --define(WRITE_OK_SIZE_BITS, 8). --define(WRITE_OK_MARKER, 255). --define(FILE_PACKING_ADJUSTMENT, (1 + ?INTEGER_SIZE_BYTES)). --define(MSG_ID_SIZE_BYTES, 16). --define(MSG_ID_SIZE_BITS, (8 * ?MSG_ID_SIZE_BYTES)). --define(SCAN_BLOCK_SIZE, 4194304). %% 4MB - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(io_device() :: any()). --type(position() :: non_neg_integer()). --type(msg_size() :: non_neg_integer()). --type(file_size() :: non_neg_integer()). --type(message_accumulator(A) :: - fun (({rabbit_types:msg_id(), msg_size(), position(), binary()}, A) -> - A)). - --spec(append/3 :: (io_device(), rabbit_types:msg_id(), msg()) -> - rabbit_types:ok_or_error2(msg_size(), any())). --spec(read/2 :: (io_device(), msg_size()) -> - rabbit_types:ok_or_error2({rabbit_types:msg_id(), msg()}, - any())). --spec(scan/4 :: (io_device(), file_size(), message_accumulator(A), A) -> - {'ok', A, position()}). - --endif. - -%%---------------------------------------------------------------------------- - -append(FileHdl, MsgId, MsgBody) - when is_binary(MsgId) andalso size(MsgId) =:= ?MSG_ID_SIZE_BYTES -> - MsgBodyBin = term_to_binary(MsgBody), - MsgBodyBinSize = size(MsgBodyBin), - Size = MsgBodyBinSize + ?MSG_ID_SIZE_BYTES, - case file_handle_cache:append(FileHdl, - <>) of - ok -> {ok, Size + ?FILE_PACKING_ADJUSTMENT}; - KO -> KO - end. - -read(FileHdl, TotalSize) -> - Size = TotalSize - ?FILE_PACKING_ADJUSTMENT, - BodyBinSize = Size - ?MSG_ID_SIZE_BYTES, - case file_handle_cache:read(FileHdl, TotalSize) of - {ok, <>} -> - {ok, {MsgId, binary_to_term(MsgBodyBin)}}; - KO -> KO - end. - -scan(FileHdl, FileSize, Fun, Acc) when FileSize >= 0 -> - scan(FileHdl, FileSize, <<>>, 0, 0, Fun, Acc). - -scan(_FileHdl, FileSize, _Data, FileSize, ScanOffset, _Fun, Acc) -> - {ok, Acc, ScanOffset}; -scan(FileHdl, FileSize, Data, ReadOffset, ScanOffset, Fun, Acc) -> - Read = lists:min([?SCAN_BLOCK_SIZE, (FileSize - ReadOffset)]), - case file_handle_cache:read(FileHdl, Read) of - {ok, Data1} -> - {Data2, Acc1, ScanOffset1} = - scanner(<>, ScanOffset, Fun, Acc), - ReadOffset1 = ReadOffset + size(Data1), - scan(FileHdl, FileSize, Data2, ReadOffset1, ScanOffset1, Fun, Acc1); - _KO -> - {ok, Acc, ScanOffset} - end. - -scanner(<<>>, Offset, _Fun, Acc) -> - {<<>>, Acc, Offset}; -scanner(<<0:?INTEGER_SIZE_BITS, _Rest/binary>>, Offset, _Fun, Acc) -> - {<<>>, Acc, Offset}; %% Nothing to do other than stop. -scanner(<>, Offset, Fun, Acc) -> - TotalSize = Size + ?FILE_PACKING_ADJUSTMENT, - case WriteMarker of - ?WRITE_OK_MARKER -> - %% Here we take option 5 from - %% http://www.erlang.org/cgi-bin/ezmlm-cgi?2:mss:1569 in - %% which we read the MsgId as a number, and then convert it - %% back to a binary in order to work around bugs in - %% Erlang's GC. - <> = - <>, - <> = - <>, - scanner(Rest, Offset + TotalSize, Fun, - Fun({MsgId, TotalSize, Offset, Msg}, Acc)); - _ -> - scanner(Rest, Offset + TotalSize, Fun, Acc) - end; -scanner(Data, Offset, _Fun, Acc) -> - {Data, Acc, Offset}. diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl deleted file mode 100644 index 27de1f77..00000000 --- a/src/rabbit_msg_store.erl +++ /dev/null @@ -1,1944 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store). - --behaviour(gen_server2). - --export([start_link/4, successfully_recovered_state/1, - client_init/4, client_terminate/1, client_delete_and_terminate/1, - client_ref/1, close_all_indicated/1, - write/3, read/2, contains/2, remove/2, sync/3]). - --export([sync/1, set_maximum_since_use/2, - has_readers/2, combine_files/3, delete_file/2]). %% internal - --export([transform_dir/3, force_recovery/2]). %% upgrade - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_call/3, prioritise_cast/2, - format_message_queue/2]). - -%%---------------------------------------------------------------------------- - --include("rabbit_msg_store.hrl"). - --define(SYNC_INTERVAL, 5). %% milliseconds --define(CLEAN_FILENAME, "clean.dot"). --define(FILE_SUMMARY_FILENAME, "file_summary.ets"). --define(TRANSFORM_TMP, "transform_tmp"). - --define(BINARY_MODE, [raw, binary]). --define(READ_MODE, [read]). --define(READ_AHEAD_MODE, [read_ahead | ?READ_MODE]). --define(WRITE_MODE, [write]). - --define(FILE_EXTENSION, ".rdq"). --define(FILE_EXTENSION_TMP, ".rdt"). - --define(HANDLE_CACHE_BUFFER_SIZE, 1048576). %% 1MB - -%%---------------------------------------------------------------------------- - --record(msstate, - { dir, %% store directory - index_module, %% the module for index ops - index_state, %% where are messages? - current_file, %% current file name as number - current_file_handle, %% current file handle since the last fsync? - file_handle_cache, %% file handle cache - on_sync, %% pending sync requests - sync_timer_ref, %% TRef for our interval timer - sum_valid_data, %% sum of valid data in all files - sum_file_size, %% sum of file sizes - pending_gc_completion, %% things to do once GC completes - gc_pid, %% pid of our GC - file_handles_ets, %% tid of the shared file handles table - file_summary_ets, %% tid of the file summary table - cur_file_cache_ets, %% tid of current file cache table - dying_clients, %% set of dying clients - clients, %% map of references of all registered clients - %% to callbacks - successfully_recovered, %% boolean: did we recover state? - file_size_limit, %% how big are our files allowed to get? - cref_to_msg_ids %% client ref to synced messages mapping - }). - --record(client_msstate, - { server, - client_ref, - file_handle_cache, - index_state, - index_module, - dir, - gc_pid, - file_handles_ets, - file_summary_ets, - cur_file_cache_ets - }). - --record(file_summary, - {file, valid_total_size, left, right, file_size, locked, readers}). - --record(gc_state, - { dir, - index_module, - index_state, - file_summary_ets, - file_handles_ets, - msg_store - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([gc_state/0, file_num/0]). - --type(gc_state() :: #gc_state { dir :: file:filename(), - index_module :: atom(), - index_state :: any(), - file_summary_ets :: ets:tid(), - file_handles_ets :: ets:tid(), - msg_store :: server() - }). - --type(server() :: pid() | atom()). --type(client_ref() :: binary()). --type(file_num() :: non_neg_integer()). --type(client_msstate() :: #client_msstate { - server :: server(), - client_ref :: client_ref(), - file_handle_cache :: dict(), - index_state :: any(), - index_module :: atom(), - dir :: file:filename(), - gc_pid :: pid(), - file_handles_ets :: ets:tid(), - file_summary_ets :: ets:tid(), - cur_file_cache_ets :: ets:tid()}). --type(msg_ref_delta_gen(A) :: - fun ((A) -> 'finished' | - {rabbit_types:msg_id(), non_neg_integer(), A})). --type(maybe_msg_id_fun() :: 'undefined' | fun ((gb_set()) -> any())). --type(maybe_close_fds_fun() :: 'undefined' | fun (() -> 'ok')). --type(deletion_thunk() :: fun (() -> boolean())). - --spec(start_link/4 :: - (atom(), file:filename(), [binary()] | 'undefined', - {msg_ref_delta_gen(A), A}) -> rabbit_types:ok_pid_or_error()). --spec(successfully_recovered_state/1 :: (server()) -> boolean()). --spec(client_init/4 :: (server(), client_ref(), maybe_msg_id_fun(), - maybe_close_fds_fun()) -> client_msstate()). --spec(client_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_delete_and_terminate/1 :: (client_msstate()) -> 'ok'). --spec(client_ref/1 :: (client_msstate()) -> client_ref()). --spec(write/3 :: (rabbit_types:msg_id(), msg(), client_msstate()) -> 'ok'). --spec(read/2 :: (rabbit_types:msg_id(), client_msstate()) -> - {rabbit_types:ok(msg()) | 'not_found', client_msstate()}). --spec(contains/2 :: (rabbit_types:msg_id(), client_msstate()) -> boolean()). --spec(remove/2 :: ([rabbit_types:msg_id()], client_msstate()) -> 'ok'). --spec(sync/3 :: - ([rabbit_types:msg_id()], fun (() -> any()), client_msstate()) -> 'ok'). - --spec(sync/1 :: (server()) -> 'ok'). --spec(set_maximum_since_use/2 :: (server(), non_neg_integer()) -> 'ok'). --spec(has_readers/2 :: (non_neg_integer(), gc_state()) -> boolean()). --spec(combine_files/3 :: (non_neg_integer(), non_neg_integer(), gc_state()) -> - deletion_thunk()). --spec(delete_file/2 :: (non_neg_integer(), gc_state()) -> deletion_thunk()). --spec(force_recovery/2 :: (file:filename(), server()) -> 'ok'). --spec(transform_dir/3 :: (file:filename(), server(), - fun ((any()) -> (rabbit_types:ok_or_error2(msg(), any())))) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -%% We run GC whenever (garbage / sum_file_size) > ?GARBAGE_FRACTION -%% It is not recommended to set this to < 0.5 --define(GARBAGE_FRACTION, 0.5). - -%% The components: -%% -%% Index: this is a mapping from MsgId to #msg_location{}: -%% {MsgId, RefCount, File, Offset, TotalSize} -%% By default, it's in ets, but it's also pluggable. -%% FileSummary: this is an ets table which maps File to #file_summary{}: -%% {File, ValidTotalSize, Left, Right, FileSize, Locked, Readers} -%% -%% The basic idea is that messages are appended to the current file up -%% until that file becomes too big (> file_size_limit). At that point, -%% the file is closed and a new file is created on the _right_ of the -%% old file which is used for new messages. Files are named -%% numerically ascending, thus the file with the lowest name is the -%% eldest file. -%% -%% We need to keep track of which messages are in which files (this is -%% the Index); how much useful data is in each file and which files -%% are on the left and right of each other. This is the purpose of the -%% FileSummary ets table. -%% -%% As messages are removed from files, holes appear in these -%% files. The field ValidTotalSize contains the total amount of useful -%% data left in the file. This is needed for garbage collection. -%% -%% When we discover that a file is now empty, we delete it. When we -%% discover that it can be combined with the useful data in either its -%% left or right neighbour, and overall, across all the files, we have -%% ((the amount of garbage) / (the sum of all file sizes)) > -%% ?GARBAGE_FRACTION, we start a garbage collection run concurrently, -%% which will compact the two files together. This keeps disk -%% utilisation high and aids performance. We deliberately do this -%% lazily in order to prevent doing GC on files which are soon to be -%% emptied (and hence deleted) soon. -%% -%% Given the compaction between two files, the left file (i.e. elder -%% file) is considered the ultimate destination for the good data in -%% the right file. If necessary, the good data in the left file which -%% is fragmented throughout the file is written out to a temporary -%% file, then read back in to form a contiguous chunk of good data at -%% the start of the left file. Thus the left file is garbage collected -%% and compacted. Then the good data from the right file is copied -%% onto the end of the left file. Index and FileSummary tables are -%% updated. -%% -%% On non-clean startup, we scan the files we discover, dealing with -%% the possibilites of a crash having occured during a compaction -%% (this consists of tidyup - the compaction is deliberately designed -%% such that data is duplicated on disk rather than risking it being -%% lost), and rebuild the FileSummary ets table and Index. -%% -%% So, with this design, messages move to the left. Eventually, they -%% should end up in a contiguous block on the left and are then never -%% rewritten. But this isn't quite the case. If in a file there is one -%% message that is being ignored, for some reason, and messages in the -%% file to the right and in the current block are being read all the -%% time then it will repeatedly be the case that the good data from -%% both files can be combined and will be written out to a new -%% file. Whenever this happens, our shunned message will be rewritten. -%% -%% So, provided that we combine messages in the right order, -%% (i.e. left file, bottom to top, right file, bottom to top), -%% eventually our shunned message will end up at the bottom of the -%% left file. The compaction/combining algorithm is smart enough to -%% read in good data from the left file that is scattered throughout -%% (i.e. C and D in the below diagram), then truncate the file to just -%% above B (i.e. truncate to the limit of the good contiguous region -%% at the start of the file), then write C and D on top and then write -%% E, F and G from the right file on top. Thus contiguous blocks of -%% good data at the bottom of files are not rewritten. -%% -%% +-------+ +-------+ +-------+ -%% | X | | G | | G | -%% +-------+ +-------+ +-------+ -%% | D | | X | | F | -%% +-------+ +-------+ +-------+ -%% | X | | X | | E | -%% +-------+ +-------+ +-------+ -%% | C | | F | ===> | D | -%% +-------+ +-------+ +-------+ -%% | X | | X | | C | -%% +-------+ +-------+ +-------+ -%% | B | | X | | B | -%% +-------+ +-------+ +-------+ -%% | A | | E | | A | -%% +-------+ +-------+ +-------+ -%% left right left -%% -%% From this reasoning, we do have a bound on the number of times the -%% message is rewritten. From when it is inserted, there can be no -%% files inserted between it and the head of the queue, and the worst -%% case is that everytime it is rewritten, it moves one position lower -%% in the file (for it to stay at the same position requires that -%% there are no holes beneath it, which means truncate would be used -%% and so it would not be rewritten at all). Thus this seems to -%% suggest the limit is the number of messages ahead of it in the -%% queue, though it's likely that that's pessimistic, given the -%% requirements for compaction/combination of files. -%% -%% The other property is that we have is the bound on the lowest -%% utilisation, which should be 50% - worst case is that all files are -%% fractionally over half full and can't be combined (equivalent is -%% alternating full files and files with only one tiny message in -%% them). -%% -%% Messages are reference-counted. When a message with the same msg id -%% is written several times we only store it once, and only remove it -%% from the store when it has been removed the same number of times. -%% -%% The reference counts do not persist. Therefore the initialisation -%% function must be provided with a generator that produces ref count -%% deltas for all recovered messages. This is only used on startup -%% when the shutdown was non-clean. -%% -%% Read messages with a reference count greater than one are entered -%% into a message cache. The purpose of the cache is not especially -%% performance, though it can help there too, but prevention of memory -%% explosion. It ensures that as messages with a high reference count -%% are read from several processes they are read back as the same -%% binary object rather than multiples of identical binary -%% objects. -%% -%% Reads can be performed directly by clients without calling to the -%% server. This is safe because multiple file handles can be used to -%% read files. However, locking is used by the concurrent GC to make -%% sure that reads are not attempted from files which are in the -%% process of being garbage collected. -%% -%% When a message is removed, its reference count is decremented. Even -%% if the reference count becomes 0, its entry is not removed. This is -%% because in the event of the same message being sent to several -%% different queues, there is the possibility of one queue writing and -%% removing the message before other queues write it at all. Thus -%% accomodating 0-reference counts allows us to avoid unnecessary -%% writes here. Of course, there are complications: the file to which -%% the message has already been written could be locked pending -%% deletion or GC, which means we have to rewrite the message as the -%% original copy will now be lost. -%% -%% The server automatically defers reads, removes and contains calls -%% that occur which refer to files which are currently being -%% GC'd. Contains calls are only deferred in order to ensure they do -%% not overtake removes. -%% -%% The current file to which messages are being written has a -%% write-back cache. This is written to immediately by clients and can -%% be read from by clients too. This means that there are only ever -%% writes made to the current file, thus eliminating delays due to -%% flushing write buffers in order to be able to safely read from the -%% current file. The one exception to this is that on start up, the -%% cache is not populated with msgs found in the current file, and -%% thus in this case only, reads may have to come from the file -%% itself. The effect of this is that even if the msg_store process is -%% heavily overloaded, clients can still write and read messages with -%% very low latency and not block at all. -%% -%% Clients of the msg_store are required to register before using the -%% msg_store. This provides them with the necessary client-side state -%% to allow them to directly access the various caches and files. When -%% they terminate, they should deregister. They can do this by calling -%% either client_terminate/1 or client_delete_and_terminate/1. The -%% differences are: (a) client_terminate is synchronous. As a result, -%% if the msg_store is badly overloaded and has lots of in-flight -%% writes and removes to process, this will take some time to -%% return. However, once it does return, you can be sure that all the -%% actions you've issued to the msg_store have been processed. (b) Not -%% only is client_delete_and_terminate/1 asynchronous, but it also -%% permits writes and subsequent removes from the current -%% (terminating) client which are still in flight to be safely -%% ignored. Thus from the point of view of the msg_store itself, and -%% all from the same client: -%% -%% (T) = termination; (WN) = write of msg N; (RN) = remove of msg N -%% --> W1, W2, W1, R1, T, W3, R2, W2, R1, R2, R3, W4 --> -%% -%% The client obviously sent T after all the other messages (up to -%% W4), but because the msg_store prioritises messages, the T can be -%% promoted and thus received early. -%% -%% Thus at the point of the msg_store receiving T, we have messages 1 -%% and 2 with a refcount of 1. After T, W3 will be ignored because -%% it's an unknown message, as will R3, and W4. W2, R1 and R2 won't be -%% ignored because the messages that they refer to were already known -%% to the msg_store prior to T. However, it can be a little more -%% complex: after the first R2, the refcount of msg 2 is 0. At that -%% point, if a GC occurs or file deletion, msg 2 could vanish, which -%% would then mean that the subsequent W2 and R2 are then ignored. -%% -%% The use case then for client_delete_and_terminate/1 is if the -%% client wishes to remove everything it's written to the msg_store: -%% it issues removes for all messages it's written and not removed, -%% and then calls client_delete_and_terminate/1. At that point, any -%% in-flight writes (and subsequent removes) can be ignored, but -%% removes and writes for messages the msg_store already knows about -%% will continue to be processed normally (which will normally just -%% involve modifying the reference count, which is fast). Thus we save -%% disk bandwidth for writes which are going to be immediately removed -%% again by the the terminating client. -%% -%% We use a separate set to keep track of the dying clients in order -%% to keep that set, which is inspected on every write and remove, as -%% small as possible. Inspecting the set of all clients would degrade -%% performance with many healthy clients and few, if any, dying -%% clients, which is the typical case. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -start_link(Server, Dir, ClientRefs, StartupFunState) -> - gen_server2:start_link({local, Server}, ?MODULE, - [Server, Dir, ClientRefs, StartupFunState], - [{timeout, infinity}]). - -successfully_recovered_state(Server) -> - gen_server2:call(Server, successfully_recovered_state, infinity). - -client_init(Server, Ref, MsgOnDiskFun, CloseFDsFun) -> - {IState, IModule, Dir, GCPid, - FileHandlesEts, FileSummaryEts, CurFileCacheEts} = - gen_server2:call( - Server, {new_client_state, Ref, MsgOnDiskFun, CloseFDsFun}, infinity), - #client_msstate { server = Server, - client_ref = Ref, - file_handle_cache = dict:new(), - index_state = IState, - index_module = IModule, - dir = Dir, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts }. - -client_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_call(CState, {client_terminate, Ref}). - -client_delete_and_terminate(CState = #client_msstate { client_ref = Ref }) -> - close_all_handles(CState), - ok = server_cast(CState, {client_dying, Ref}), - ok = server_cast(CState, {client_delete, Ref}). - -client_ref(#client_msstate { client_ref = Ref }) -> Ref. - -write(MsgId, Msg, - CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts, - client_ref = CRef }) -> - ok = update_msg_cache(CurFileCacheEts, MsgId, Msg), - ok = server_cast(CState, {write, CRef, MsgId}). - -read(MsgId, - CState = #client_msstate { cur_file_cache_ets = CurFileCacheEts }) -> - %% Check the cur file cache - case ets:lookup(CurFileCacheEts, MsgId) of - [] -> - Defer = fun() -> {server_call(CState, {read, MsgId}), CState} end, - case index_lookup_positive_ref_count(MsgId, CState) of - not_found -> Defer(); - MsgLocation -> client_read1(MsgLocation, Defer, CState) - end; - [{MsgId, Msg, _CacheRefCount}] -> - {{ok, Msg}, CState} - end. - -contains(MsgId, CState) -> server_call(CState, {contains, MsgId}). -remove([], _CState) -> ok; -remove(MsgIds, CState = #client_msstate { client_ref = CRef }) -> - server_cast(CState, {remove, CRef, MsgIds}). -sync(MsgIds, K, CState) -> server_cast(CState, {sync, MsgIds, K}). - -sync(Server) -> - gen_server2:cast(Server, sync). - -set_maximum_since_use(Server, Age) -> - gen_server2:cast(Server, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- -%% Client-side-only helpers -%%---------------------------------------------------------------------------- - -server_call(#client_msstate { server = Server }, Msg) -> - gen_server2:call(Server, Msg, infinity). - -server_cast(#client_msstate { server = Server }, Msg) -> - gen_server2:cast(Server, Msg). - -client_read1(#msg_location { msg_id = MsgId, file = File } = MsgLocation, Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - case ets:lookup(FileSummaryEts, File) of - [] -> %% File has been GC'd and no longer exists. Go around again. - read(MsgId, CState); - [#file_summary { locked = Locked, right = Right }] -> - client_read2(Locked, Right, MsgLocation, Defer, CState) - end. - -client_read2(false, undefined, _MsgLocation, Defer, _CState) -> - %% Although we've already checked both caches and not found the - %% message there, the message is apparently in the - %% current_file. We can only arrive here if we are trying to read - %% a message which we have not written, which is very odd, so just - %% defer. - %% - %% OR, on startup, the cur_file_cache is not populated with the - %% contents of the current file, thus reads from the current file - %% will end up here and will need to be deferred. - Defer(); -client_read2(true, _Right, _MsgLocation, Defer, _CState) -> - %% Of course, in the mean time, the GC could have run and our msg - %% is actually in a different file, unlocked. However, defering is - %% the safest and simplest thing to do. - Defer(); -client_read2(false, _Right, - MsgLocation = #msg_location { msg_id = MsgId, file = File }, - Defer, - CState = #client_msstate { file_summary_ets = FileSummaryEts }) -> - %% It's entirely possible that everything we're doing from here on - %% is for the wrong file, or a non-existent file, as a GC may have - %% finished. - safe_ets_update_counter( - FileSummaryEts, File, {#file_summary.readers, +1}, - fun (_) -> client_read3(MsgLocation, Defer, CState) end, - fun () -> read(MsgId, CState) end). - -client_read3(#msg_location { msg_id = MsgId, file = File }, Defer, - CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - gc_pid = GCPid, - client_ref = Ref }) -> - Release = - fun() -> ok = case ets:update_counter(FileSummaryEts, File, - {#file_summary.readers, -1}) of - 0 -> case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - rabbit_msg_store_gc:no_readers( - GCPid, File); - _ -> ok - end; - _ -> ok - end - end, - %% If a GC involving the file hasn't already started, it won't - %% start now. Need to check again to see if we've been locked in - %% the meantime, between lookup and update_counter (thus GC - %% started before our +1. In fact, it could have finished by now - %% too). - case ets:lookup(FileSummaryEts, File) of - [] -> %% GC has deleted our file, just go round again. - read(MsgId, CState); - [#file_summary { locked = true }] -> - %% If we get a badarg here, then the GC has finished and - %% deleted our file. Try going around again. Otherwise, - %% just defer. - %% - %% badarg scenario: we lookup, msg_store locks, GC starts, - %% GC ends, we +1 readers, msg_store ets:deletes (and - %% unlocks the dest) - try Release(), - Defer() - catch error:badarg -> read(MsgId, CState) - end; - [#file_summary { locked = false }] -> - %% Ok, we're definitely safe to continue - a GC involving - %% the file cannot start up now, and isn't running, so - %% nothing will tell us from now on to close the handle if - %% it's already open. - %% - %% Finally, we need to recheck that the msg is still at - %% the same place - it's possible an entire GC ran between - %% us doing the lookup and the +1 on the readers. (Same as - %% badarg scenario above, but we don't have a missing file - %% - we just have the /wrong/ file). - case index_lookup(MsgId, CState) of - #msg_location { file = File } = MsgLocation -> - %% Still the same file. - {ok, CState1} = close_all_indicated(CState), - %% We are now guaranteed that the mark_handle_open - %% call will either insert_new correctly, or will - %% fail, but find the value is open, not close. - mark_handle_open(FileHandlesEts, File, Ref), - %% Could the msg_store now mark the file to be - %% closed? No: marks for closing are issued only - %% when the msg_store has locked the file. - %% This will never be the current file - {Msg, CState2} = read_from_disk(MsgLocation, CState1), - Release(), %% this MUST NOT fail with badarg - {{ok, Msg}, CState2}; - #msg_location {} = MsgLocation -> %% different file! - Release(), %% this MUST NOT fail with badarg - client_read1(MsgLocation, Defer, CState); - not_found -> %% it seems not to exist. Defer, just to be sure. - try Release() %% this can badarg, same as locked case, above - catch error:badarg -> ok - end, - Defer() - end - end. - -clear_client(CRef, State = #msstate { cref_to_msg_ids = CTM, - dying_clients = DyingClients }) -> - State #msstate { cref_to_msg_ids = dict:erase(CRef, CTM), - dying_clients = sets:del_element(CRef, DyingClients) }. - - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -init([Server, BaseDir, ClientRefs, StartupFunState]) -> - process_flag(trap_exit, true), - - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - - Dir = filename:join(BaseDir, atom_to_list(Server)), - - {ok, IndexModule} = application:get_env(msg_store_index_module), - rabbit_log:info("~w: using ~p to provide index~n", [Server, IndexModule]), - - AttemptFileSummaryRecovery = - case ClientRefs of - undefined -> ok = rabbit_misc:recursive_delete([Dir]), - ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - false; - _ -> ok = filelib:ensure_dir(filename:join(Dir, "nothing")), - recover_crashed_compactions(Dir) - end, - - %% if we found crashed compactions we trust neither the - %% file_summary nor the location index. Note the file_summary is - %% left empty here if it can't be recovered. - {FileSummaryRecovered, FileSummaryEts} = - recover_file_summary(AttemptFileSummaryRecovery, Dir), - - {CleanShutdown, IndexState, ClientRefs1} = - recover_index_and_client_refs(IndexModule, FileSummaryRecovered, - ClientRefs, Dir, Server), - Clients = dict:from_list( - [{CRef, {undefined, undefined}} || CRef <- ClientRefs1]), - %% CleanShutdown => msg location index and file_summary both - %% recovered correctly. - true = case {FileSummaryRecovered, CleanShutdown} of - {true, false} -> ets:delete_all_objects(FileSummaryEts); - _ -> true - end, - %% CleanShutdown <=> msg location index and file_summary both - %% recovered correctly. - - FileHandlesEts = ets:new(rabbit_msg_store_shared_file_handles, - [ordered_set, public]), - CurFileCacheEts = ets:new(rabbit_msg_store_cur_file, [set, public]), - - {ok, FileSizeLimit} = application:get_env(msg_store_file_size_limit), - - {ok, GCPid} = rabbit_msg_store_gc:start_link( - #gc_state { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - msg_store = self() - }), - - State = #msstate { dir = Dir, - index_module = IndexModule, - index_state = IndexState, - current_file = 0, - current_file_handle = undefined, - file_handle_cache = dict:new(), - on_sync = [], - sync_timer_ref = undefined, - sum_valid_data = 0, - sum_file_size = 0, - pending_gc_completion = orddict:new(), - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - dying_clients = sets:new(), - clients = Clients, - successfully_recovered = CleanShutdown, - file_size_limit = FileSizeLimit, - cref_to_msg_ids = dict:new() - }, - - %% If we didn't recover the msg location index then we need to - %% rebuild it now. - {Offset, State1 = #msstate { current_file = CurFile }} = - build_index(CleanShutdown, StartupFunState, State), - - %% read is only needed so that we can seek - {ok, CurHdl} = open_file(Dir, filenum_to_name(CurFile), - [read | ?WRITE_MODE]), - {ok, Offset} = file_handle_cache:position(CurHdl, Offset), - ok = file_handle_cache:truncate(CurHdl), - - {ok, maybe_compact(State1 #msstate { current_file_handle = CurHdl }), - hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_call(Msg, _From, _State) -> - case Msg of - successfully_recovered_state -> 7; - {new_client_state, _Ref, _MODC, _CloseFDsFun} -> 7; - {read, _MsgId} -> 2; - _ -> 0 - end. - -prioritise_cast(Msg, _State) -> - case Msg of - sync -> 8; - {combine_files, _Source, _Destination, _Reclaimed} -> 8; - {delete_file, _File, _Reclaimed} -> 8; - {set_maximum_since_use, _Age} -> 8; - {client_dying, _Pid} -> 7; - _ -> 0 - end. - -handle_call(successfully_recovered_state, _From, State) -> - reply(State #msstate.successfully_recovered, State); - -handle_call({new_client_state, CRef, MsgOnDiskFun, CloseFDsFun}, _From, - State = #msstate { dir = Dir, - index_state = IndexState, - index_module = IndexModule, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - gc_pid = GCPid }) -> - Clients1 = dict:store(CRef, {MsgOnDiskFun, CloseFDsFun}, Clients), - reply({IndexState, IndexModule, Dir, GCPid, FileHandlesEts, FileSummaryEts, - CurFileCacheEts}, State #msstate { clients = Clients1 }); - -handle_call({client_terminate, CRef}, _From, State) -> - reply(ok, clear_client(CRef, State)); - -handle_call({read, MsgId}, From, State) -> - State1 = read_message(MsgId, From, State), - noreply(State1); - -handle_call({contains, MsgId}, From, State) -> - State1 = contains_message(MsgId, From, State), - noreply(State1). - -handle_cast({client_dying, CRef}, - State = #msstate { dying_clients = DyingClients }) -> - DyingClients1 = sets:add_element(CRef, DyingClients), - noreply(write_message(CRef, <<>>, - State #msstate { dying_clients = DyingClients1 })); - -handle_cast({client_delete, CRef}, State = #msstate { clients = Clients }) -> - State1 = State #msstate { clients = dict:erase(CRef, Clients) }, - noreply(remove_message(CRef, CRef, clear_client(CRef, State1))); - -handle_cast({write, CRef, MsgId}, - State = #msstate { cur_file_cache_ets = CurFileCacheEts }) -> - true = 0 =< ets:update_counter(CurFileCacheEts, MsgId, {3, -1}), - [{MsgId, Msg, _CacheRefCount}] = ets:lookup(CurFileCacheEts, MsgId), - noreply( - case write_action(should_mask_action(CRef, MsgId, State), MsgId, State) of - {write, State1} -> - write_message(CRef, MsgId, Msg, State1); - {ignore, CurFile, State1 = #msstate { current_file = CurFile }} -> - State1; - {ignore, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), - State1; - {confirm, CurFile, State1 = #msstate { current_file = CurFile }}-> - record_pending_confirm(CRef, MsgId, State1); - {confirm, _File, State1} -> - true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), - update_pending_confirms( - fun (MsgOnDiskFun, CTM) -> - MsgOnDiskFun(gb_sets:singleton(MsgId), written), - CTM - end, CRef, State1) - end); - -handle_cast({remove, CRef, MsgIds}, State) -> - State1 = lists:foldl( - fun (MsgId, State2) -> remove_message(MsgId, CRef, State2) end, - State, MsgIds), - noreply(maybe_compact(client_confirm(CRef, gb_sets:from_list(MsgIds), - removed, State1))); - -handle_cast({sync, MsgIds, K}, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - on_sync = Syncs }) -> - {ok, SyncOffset} = file_handle_cache:last_sync_offset(CurHdl), - case lists:any(fun (MsgId) -> - #msg_location { file = File, offset = Offset } = - index_lookup(MsgId, State), - File =:= CurFile andalso Offset >= SyncOffset - end, MsgIds) of - false -> K(), - noreply(State); - true -> noreply(State #msstate { on_sync = [K | Syncs] }) - end; - -handle_cast(sync, State) -> - noreply(internal_sync(State)); - -handle_cast({combine_files, Source, Destination, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - ok = cleanup_after_file_deletion(Source, State), - %% see comment in cleanup_after_file_deletion, and client_read3 - true = mark_handle_to_close(Clients, FileHandlesEts, Destination, false), - true = ets:update_element(FileSummaryEts, Destination, - {#file_summary.locked, false}), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([Source, Destination], State1))); - -handle_cast({delete_file, File, Reclaimed}, - State = #msstate { sum_file_size = SumFileSize }) -> - ok = cleanup_after_file_deletion(File, State), - State1 = State #msstate { sum_file_size = SumFileSize - Reclaimed }, - noreply(maybe_compact(run_pending([File], State1))); - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - noreply(State). - -handle_info(timeout, State) -> - noreply(internal_sync(State)); - -handle_info({'EXIT', _Pid, Reason}, State) -> - {stop, Reason, State}. - -terminate(_Reason, State = #msstate { index_state = IndexState, - index_module = IndexModule, - current_file_handle = CurHdl, - gc_pid = GCPid, - file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - clients = Clients, - dir = Dir }) -> - %% stop the gc first, otherwise it could be working and we pull - %% out the ets tables from under it. - ok = rabbit_msg_store_gc:stop(GCPid), - State1 = case CurHdl of - undefined -> State; - _ -> State2 = internal_sync(State), - ok = file_handle_cache:close(CurHdl), - State2 - end, - State3 = close_all_handles(State1), - ok = store_file_summary(FileSummaryEts, Dir), - [true = ets:delete(T) || - T <- [FileSummaryEts, FileHandlesEts, CurFileCacheEts]], - IndexModule:terminate(IndexState), - ok = store_recovery_terms([{client_refs, dict:fetch_keys(Clients)}, - {index_module, IndexModule}], Dir), - State3 #msstate { index_state = undefined, - current_file_handle = undefined }. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). - -%%---------------------------------------------------------------------------- -%% general helper functions -%%---------------------------------------------------------------------------- - -noreply(State) -> - {State1, Timeout} = next_state(State), - {noreply, State1, Timeout}. - -reply(Reply, State) -> - {State1, Timeout} = next_state(State), - {reply, Reply, State1, Timeout}. - -next_state(State = #msstate { sync_timer_ref = undefined, - on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - case {Syncs, dict:size(CTM)} of - {[], 0} -> {State, hibernate}; - _ -> {start_sync_timer(State), 0} - end; -next_state(State = #msstate { on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - case {Syncs, dict:size(CTM)} of - {[], 0} -> {stop_sync_timer(State), hibernate}; - _ -> {State, 0} - end. - -start_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - {ok, TRef} = timer:apply_after(?SYNC_INTERVAL, ?MODULE, sync, [self()]), - State #msstate { sync_timer_ref = TRef }. - -stop_sync_timer(State = #msstate { sync_timer_ref = undefined }) -> - State; -stop_sync_timer(State = #msstate { sync_timer_ref = TRef }) -> - {ok, cancel} = timer:cancel(TRef), - State #msstate { sync_timer_ref = undefined }. - -internal_sync(State = #msstate { current_file_handle = CurHdl, - on_sync = Syncs, - cref_to_msg_ids = CTM }) -> - State1 = stop_sync_timer(State), - CGs = dict:fold(fun (CRef, MsgIds, NS) -> - case gb_sets:is_empty(MsgIds) of - true -> NS; - false -> [{CRef, MsgIds} | NS] - end - end, [], CTM), - ok = case {Syncs, CGs} of - {[], []} -> ok; - _ -> file_handle_cache:sync(CurHdl) - end, - [K() || K <- lists:reverse(Syncs)], - State2 = lists:foldl( - fun ({CRef, MsgIds}, StateN) -> - client_confirm(CRef, MsgIds, written, StateN) - end, State1, CGs), - State2 #msstate { on_sync = [] }. - -write_action({true, not_found}, _MsgId, State) -> - {ignore, undefined, State}; -write_action({true, #msg_location { file = File }}, _MsgId, State) -> - {ignore, File, State}; -write_action({false, not_found}, _MsgId, State) -> - {write, State}; -write_action({Mask, #msg_location { ref_count = 0, file = File, - total_size = TotalSize }}, - MsgId, State = #msstate { file_summary_ets = FileSummaryEts }) -> - case {Mask, ets:lookup(FileSummaryEts, File)} of - {false, [#file_summary { locked = true }]} -> - ok = index_delete(MsgId, State), - {write, State}; - {false_if_increment, [#file_summary { locked = true }]} -> - %% The msg for MsgId is older than the client death - %% message, but as it is being GC'd currently we'll have - %% to write a new copy, which will then be younger, so - %% ignore this write. - {ignore, File, State}; - {_Mask, [#file_summary {}]} -> - ok = index_update_ref_count(MsgId, 1, State), - State1 = adjust_valid_total_size(File, TotalSize, State), - {confirm, File, State1} - end; -write_action({_Mask, #msg_location { ref_count = RefCount, file = File }}, - MsgId, State) -> - ok = index_update_ref_count(MsgId, RefCount + 1, State), - %% We already know about it, just update counter. Only update - %% field otherwise bad interaction with concurrent GC - {confirm, File, State}. - -write_message(CRef, MsgId, Msg, State) -> - write_message(MsgId, Msg, record_pending_confirm(CRef, MsgId, State)). - -write_message(MsgId, Msg, - State = #msstate { current_file_handle = CurHdl, - current_file = CurFile, - sum_valid_data = SumValid, - sum_file_size = SumFileSize, - file_summary_ets = FileSummaryEts }) -> - {ok, CurOffset} = file_handle_cache:current_virtual_offset(CurHdl), - {ok, TotalSize} = rabbit_msg_file:append(CurHdl, MsgId, Msg), - ok = index_insert( - #msg_location { msg_id = MsgId, ref_count = 1, file = CurFile, - offset = CurOffset, total_size = TotalSize }, State), - [#file_summary { right = undefined, locked = false }] = - ets:lookup(FileSummaryEts, CurFile), - [_,_] = ets:update_counter(FileSummaryEts, CurFile, - [{#file_summary.valid_total_size, TotalSize}, - {#file_summary.file_size, TotalSize}]), - maybe_roll_to_new_file(CurOffset + TotalSize, - State #msstate { - sum_valid_data = SumValid + TotalSize, - sum_file_size = SumFileSize + TotalSize }). - -read_message(MsgId, From, State) -> - case index_lookup_positive_ref_count(MsgId, State) of - not_found -> gen_server2:reply(From, not_found), - State; - MsgLocation -> read_message1(From, MsgLocation, State) - end. - -read_message1(From, #msg_location { msg_id = MsgId, file = File, - offset = Offset } = MsgLoc, - State = #msstate { current_file = CurFile, - current_file_handle = CurHdl, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts }) -> - case File =:= CurFile of - true -> {Msg, State1} = - %% can return [] if msg in file existed on startup - case ets:lookup(CurFileCacheEts, MsgId) of - [] -> - {ok, RawOffSet} = - file_handle_cache:current_raw_offset(CurHdl), - ok = case Offset >= RawOffSet of - true -> file_handle_cache:flush(CurHdl); - false -> ok - end, - read_from_disk(MsgLoc, State); - [{MsgId, Msg1, _CacheRefCount}] -> - {Msg1, State} - end, - gen_server2:reply(From, {ok, Msg}), - State1; - false -> [#file_summary { locked = Locked }] = - ets:lookup(FileSummaryEts, File), - case Locked of - true -> add_to_pending_gc_completion({read, MsgId, From}, - File, State); - false -> {Msg, State1} = read_from_disk(MsgLoc, State), - gen_server2:reply(From, {ok, Msg}), - State1 - end - end. - -read_from_disk(#msg_location { msg_id = MsgId, file = File, offset = Offset, - total_size = TotalSize }, State) -> - {Hdl, State1} = get_read_handle(File, State), - {ok, Offset} = file_handle_cache:position(Hdl, Offset), - {ok, {MsgId, Msg}} = - case rabbit_msg_file:read(Hdl, TotalSize) of - {ok, {MsgId, _}} = Obj -> - Obj; - Rest -> - {error, {misread, [{old_state, State}, - {file_num, File}, - {offset, Offset}, - {msg_id, MsgId}, - {read, Rest}, - {proc_dict, get()} - ]}} - end, - {Msg, State1}. - -contains_message(MsgId, From, - State = #msstate { pending_gc_completion = Pending }) -> - case index_lookup_positive_ref_count(MsgId, State) of - not_found -> - gen_server2:reply(From, false), - State; - #msg_location { file = File } -> - case orddict:is_key(File, Pending) of - true -> add_to_pending_gc_completion( - {contains, MsgId, From}, File, State); - false -> gen_server2:reply(From, true), - State - end - end. - -remove_message(MsgId, CRef, - State = #msstate { file_summary_ets = FileSummaryEts }) -> - case should_mask_action(CRef, MsgId, State) of - {true, _Location} -> - State; - {false_if_increment, #msg_location { ref_count = 0 }} -> - %% CRef has tried to both write and remove this msg - %% whilst it's being GC'd. ASSERTION: - %% [#file_summary { locked = true }] = - %% ets:lookup(FileSummaryEts, File), - State; - {_Mask, #msg_location { ref_count = RefCount, file = File, - total_size = TotalSize }} when RefCount > 0 -> - %% only update field, otherwise bad interaction with - %% concurrent GC - Dec = fun () -> - index_update_ref_count(MsgId, RefCount - 1, State) - end, - case RefCount of - %% don't remove from CUR_FILE_CACHE_ETS_NAME here - %% because there may be further writes in the mailbox - %% for the same msg. - 1 -> case ets:lookup(FileSummaryEts, File) of - [#file_summary { locked = true }] -> - add_to_pending_gc_completion( - {remove, MsgId, CRef}, File, State); - [#file_summary {}] -> - ok = Dec(), - delete_file_if_empty( - File, adjust_valid_total_size(File, -TotalSize, - State)) - end; - _ -> ok = Dec(), - State - end - end. - -add_to_pending_gc_completion( - Op, File, State = #msstate { pending_gc_completion = Pending }) -> - State #msstate { pending_gc_completion = - rabbit_misc:orddict_cons(File, Op, Pending) }. - -run_pending(Files, State) -> - lists:foldl( - fun (File, State1 = #msstate { pending_gc_completion = Pending }) -> - Pending1 = orddict:erase(File, Pending), - lists:foldl( - fun run_pending_action/2, - State1 #msstate { pending_gc_completion = Pending1 }, - lists:reverse(orddict:fetch(File, Pending))) - end, State, Files). - -run_pending_action({read, MsgId, From}, State) -> - read_message(MsgId, From, State); -run_pending_action({contains, MsgId, From}, State) -> - contains_message(MsgId, From, State); -run_pending_action({remove, MsgId, CRef}, State) -> - remove_message(MsgId, CRef, State). - -safe_ets_update_counter(Tab, Key, UpdateOp, SuccessFun, FailThunk) -> - try - SuccessFun(ets:update_counter(Tab, Key, UpdateOp)) - catch error:badarg -> FailThunk() - end. - -safe_ets_update_counter_ok(Tab, Key, UpdateOp, FailThunk) -> - safe_ets_update_counter(Tab, Key, UpdateOp, fun (_) -> ok end, FailThunk). - -adjust_valid_total_size(File, Delta, State = #msstate { - sum_valid_data = SumValid, - file_summary_ets = FileSummaryEts }) -> - [_] = ets:update_counter(FileSummaryEts, File, - [{#file_summary.valid_total_size, Delta}]), - State #msstate { sum_valid_data = SumValid + Delta }. - -orddict_store(Key, Val, Dict) -> - false = orddict:is_key(Key, Dict), - orddict:store(Key, Val, Dict). - -update_pending_confirms(Fun, CRef, - State = #msstate { clients = Clients, - cref_to_msg_ids = CTM }) -> - case dict:fetch(CRef, Clients) of - {undefined, _CloseFDsFun} -> State; - {MsgOnDiskFun, _CloseFDsFun} -> CTM1 = Fun(MsgOnDiskFun, CTM), - State #msstate { - cref_to_msg_ids = CTM1 } - end. - -record_pending_confirm(CRef, MsgId, State) -> - update_pending_confirms( - fun (_MsgOnDiskFun, CTM) -> - dict:update(CRef, fun (MsgIds) -> gb_sets:add(MsgId, MsgIds) end, - gb_sets:singleton(MsgId), CTM) - end, CRef, State). - -client_confirm(CRef, MsgIds, ActionTaken, State) -> - update_pending_confirms( - fun (MsgOnDiskFun, CTM) -> - MsgOnDiskFun(MsgIds, ActionTaken), - case dict:find(CRef, CTM) of - {ok, Gs} -> MsgIds1 = gb_sets:difference(Gs, MsgIds), - case gb_sets:is_empty(MsgIds1) of - true -> dict:erase(CRef, CTM); - false -> dict:store(CRef, MsgIds1, CTM) - end; - error -> CTM - end - end, CRef, State). - -%% Detect whether the MsgId is older or younger than the client's death -%% msg (if there is one). If the msg is older than the client death -%% msg, and it has a 0 ref_count we must only alter the ref_count, not -%% rewrite the msg - rewriting it would make it younger than the death -%% msg and thus should be ignored. Note that this (correctly) returns -%% false when testing to remove the death msg itself. -should_mask_action(CRef, MsgId, - State = #msstate { dying_clients = DyingClients }) -> - case {sets:is_element(CRef, DyingClients), index_lookup(MsgId, State)} of - {false, Location} -> - {false, Location}; - {true, not_found} -> - {true, not_found}; - {true, #msg_location { file = File, offset = Offset, - ref_count = RefCount } = Location} -> - #msg_location { file = DeathFile, offset = DeathOffset } = - index_lookup(CRef, State), - {case {{DeathFile, DeathOffset} < {File, Offset}, RefCount} of - {true, _} -> true; - {false, 0} -> false_if_increment; - {false, _} -> false - end, Location} - end. - -%%---------------------------------------------------------------------------- -%% file helper functions -%%---------------------------------------------------------------------------- - -open_file(Dir, FileName, Mode) -> - file_handle_cache:open(form_filename(Dir, FileName), ?BINARY_MODE ++ Mode, - [{write_buffer, ?HANDLE_CACHE_BUFFER_SIZE}]). - -close_handle(Key, CState = #client_msstate { file_handle_cache = FHC }) -> - CState #client_msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, State = #msstate { file_handle_cache = FHC }) -> - State #msstate { file_handle_cache = close_handle(Key, FHC) }; - -close_handle(Key, FHC) -> - case dict:find(Key, FHC) of - {ok, Hdl} -> ok = file_handle_cache:close(Hdl), - dict:erase(Key, FHC); - error -> FHC - end. - -mark_handle_open(FileHandlesEts, File, Ref) -> - %% This is fine to fail (already exists). Note it could fail with - %% the value being close, and not have it updated to open. - ets:insert_new(FileHandlesEts, {{Ref, File}, open}), - true. - -%% See comment in client_read3 - only call this when the file is locked -mark_handle_to_close(ClientRefs, FileHandlesEts, File, Invoke) -> - [ begin - case (ets:update_element(FileHandlesEts, Key, {2, close}) - andalso Invoke) of - true -> case dict:fetch(Ref, ClientRefs) of - {_MsgOnDiskFun, undefined} -> ok; - {_MsgOnDiskFun, CloseFDsFun} -> ok = CloseFDsFun() - end; - false -> ok - end - end || {{Ref, _File} = Key, open} <- - ets:match_object(FileHandlesEts, {{'_', File}, open}) ], - true. - -safe_file_delete_fun(File, Dir, FileHandlesEts) -> - fun () -> safe_file_delete(File, Dir, FileHandlesEts) end. - -safe_file_delete(File, Dir, FileHandlesEts) -> - %% do not match on any value - it's the absence of the row that - %% indicates the client has really closed the file. - case ets:match_object(FileHandlesEts, {{'_', File}, '_'}, 1) of - {[_|_], _Cont} -> false; - _ -> ok = file:delete( - form_filename(Dir, filenum_to_name(File))), - true - end. - -close_all_indicated(#client_msstate { file_handles_ets = FileHandlesEts, - client_ref = Ref } = - CState) -> - Objs = ets:match_object(FileHandlesEts, {{Ref, '_'}, close}), - {ok, lists:foldl(fun ({Key = {_Ref, File}, close}, CStateM) -> - true = ets:delete(FileHandlesEts, Key), - close_handle(File, CStateM) - end, CState, Objs)}. - -close_all_handles(CState = #client_msstate { file_handles_ets = FileHandlesEts, - file_handle_cache = FHC, - client_ref = Ref }) -> - ok = dict:fold(fun (File, Hdl, ok) -> - true = ets:delete(FileHandlesEts, {Ref, File}), - file_handle_cache:close(Hdl) - end, ok, FHC), - CState #client_msstate { file_handle_cache = dict:new() }; - -close_all_handles(State = #msstate { file_handle_cache = FHC }) -> - ok = dict:fold(fun (_Key, Hdl, ok) -> file_handle_cache:close(Hdl) end, - ok, FHC), - State #msstate { file_handle_cache = dict:new() }. - -get_read_handle(FileNum, CState = #client_msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, CState #client_msstate { file_handle_cache = FHC2 }}; - -get_read_handle(FileNum, State = #msstate { file_handle_cache = FHC, - dir = Dir }) -> - {Hdl, FHC2} = get_read_handle(FileNum, FHC, Dir), - {Hdl, State #msstate { file_handle_cache = FHC2 }}. - -get_read_handle(FileNum, FHC, Dir) -> - case dict:find(FileNum, FHC) of - {ok, Hdl} -> {Hdl, FHC}; - error -> {ok, Hdl} = open_file(Dir, filenum_to_name(FileNum), - ?READ_MODE), - {Hdl, dict:store(FileNum, Hdl, FHC)} - end. - -preallocate(Hdl, FileSizeLimit, FinalPos) -> - {ok, FileSizeLimit} = file_handle_cache:position(Hdl, FileSizeLimit), - ok = file_handle_cache:truncate(Hdl), - {ok, FinalPos} = file_handle_cache:position(Hdl, FinalPos), - ok. - -truncate_and_extend_file(Hdl, Lowpoint, Highpoint) -> - {ok, Lowpoint} = file_handle_cache:position(Hdl, Lowpoint), - ok = file_handle_cache:truncate(Hdl), - ok = preallocate(Hdl, Highpoint, Lowpoint). - -form_filename(Dir, Name) -> filename:join(Dir, Name). - -filenum_to_name(File) -> integer_to_list(File) ++ ?FILE_EXTENSION. - -filename_to_num(FileName) -> list_to_integer(filename:rootname(FileName)). - -list_sorted_file_names(Dir, Ext) -> - lists:sort(fun (A, B) -> filename_to_num(A) < filename_to_num(B) end, - filelib:wildcard("*" ++ Ext, Dir)). - -%%---------------------------------------------------------------------------- -%% message cache helper functions -%%---------------------------------------------------------------------------- - -update_msg_cache(CacheEts, MsgId, Msg) -> - case ets:insert_new(CacheEts, {MsgId, Msg, 1}) of - true -> ok; - false -> safe_ets_update_counter_ok( - CacheEts, MsgId, {3, +1}, - fun () -> update_msg_cache(CacheEts, MsgId, Msg) end) - end. - -%%---------------------------------------------------------------------------- -%% index -%%---------------------------------------------------------------------------- - -index_lookup_positive_ref_count(Key, State) -> - case index_lookup(Key, State) of - not_found -> not_found; - #msg_location { ref_count = 0 } -> not_found; - #msg_location {} = MsgLocation -> MsgLocation - end. - -index_update_ref_count(Key, RefCount, State) -> - index_update_fields(Key, {#msg_location.ref_count, RefCount}, State). - -index_lookup(Key, #client_msstate { index_module = Index, - index_state = State }) -> - Index:lookup(Key, State); - -index_lookup(Key, #msstate { index_module = Index, index_state = State }) -> - Index:lookup(Key, State). - -index_insert(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:insert(Obj, State). - -index_update(Obj, #msstate { index_module = Index, index_state = State }) -> - Index:update(Obj, State). - -index_update_fields(Key, Updates, #msstate { index_module = Index, - index_state = State }) -> - Index:update_fields(Key, Updates, State). - -index_delete(Key, #msstate { index_module = Index, index_state = State }) -> - Index:delete(Key, State). - -index_delete_by_file(File, #msstate { index_module = Index, - index_state = State }) -> - Index:delete_by_file(File, State). - -%%---------------------------------------------------------------------------- -%% shutdown and recovery -%%---------------------------------------------------------------------------- - -recover_index_and_client_refs(IndexModule, _Recover, undefined, Dir, _Server) -> - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, false, _ClientRefs, Dir, Server) -> - rabbit_log:warning("~w: rebuilding indices from scratch~n", [Server]), - {false, IndexModule:new(Dir), []}; -recover_index_and_client_refs(IndexModule, true, ClientRefs, Dir, Server) -> - Fresh = fun (ErrorMsg, ErrorArgs) -> - rabbit_log:warning("~w: " ++ ErrorMsg ++ "~n" - "rebuilding indices from scratch~n", - [Server | ErrorArgs]), - {false, IndexModule:new(Dir), []} - end, - case read_recovery_terms(Dir) of - {false, Error} -> - Fresh("failed to read recovery terms: ~p", [Error]); - {true, Terms} -> - RecClientRefs = proplists:get_value(client_refs, Terms, []), - RecIndexModule = proplists:get_value(index_module, Terms), - case (lists:sort(ClientRefs) =:= lists:sort(RecClientRefs) - andalso IndexModule =:= RecIndexModule) of - true -> case IndexModule:recover(Dir) of - {ok, IndexState1} -> - {true, IndexState1, ClientRefs}; - {error, Error} -> - Fresh("failed to recover index: ~p", [Error]) - end; - false -> Fresh("recovery terms differ from present", []) - end - end. - -store_recovery_terms(Terms, Dir) -> - rabbit_misc:write_term_file(filename:join(Dir, ?CLEAN_FILENAME), Terms). - -read_recovery_terms(Dir) -> - Path = filename:join(Dir, ?CLEAN_FILENAME), - case rabbit_misc:read_term_file(Path) of - {ok, Terms} -> case file:delete(Path) of - ok -> {true, Terms}; - {error, Error} -> {false, Error} - end; - {error, Error} -> {false, Error} - end. - -store_file_summary(Tid, Dir) -> - ok = ets:tab2file(Tid, filename:join(Dir, ?FILE_SUMMARY_FILENAME), - [{extended_info, [object_count]}]). - -recover_file_summary(false, _Dir) -> - %% TODO: the only reason for this to be an *ordered*_set is so - %% that a) maybe_compact can start a traversal from the eldest - %% file, and b) build_index in fast recovery mode can easily - %% identify the current file. It's awkward to have both that - %% odering and the left/right pointers in the entries - replacing - %% the former with some additional bit of state would be easy, but - %% ditching the latter would be neater. - {false, ets:new(rabbit_msg_store_file_summary, - [ordered_set, public, {keypos, #file_summary.file}])}; -recover_file_summary(true, Dir) -> - Path = filename:join(Dir, ?FILE_SUMMARY_FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> ok = file:delete(Path), - {true, Tid}; - {error, _Error} -> recover_file_summary(false, Dir) - end. - -count_msg_refs(Gen, Seed, State) -> - case Gen(Seed) of - finished -> - ok; - {_MsgId, 0, Next} -> - count_msg_refs(Gen, Next, State); - {MsgId, Delta, Next} -> - ok = case index_lookup(MsgId, State) of - not_found -> - index_insert(#msg_location { msg_id = MsgId, - file = undefined, - ref_count = Delta }, - State); - #msg_location { ref_count = RefCount } = StoreEntry -> - NewRefCount = RefCount + Delta, - case NewRefCount of - 0 -> index_delete(MsgId, State); - _ -> index_update(StoreEntry #msg_location { - ref_count = NewRefCount }, - State) - end - end, - count_msg_refs(Gen, Next, State) - end. - -recover_crashed_compactions(Dir) -> - FileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION), - TmpFileNames = list_sorted_file_names(Dir, ?FILE_EXTENSION_TMP), - lists:foreach( - fun (TmpFileName) -> - NonTmpRelatedFileName = - filename:rootname(TmpFileName) ++ ?FILE_EXTENSION, - true = lists:member(NonTmpRelatedFileName, FileNames), - ok = recover_crashed_compaction( - Dir, TmpFileName, NonTmpRelatedFileName) - end, TmpFileNames), - TmpFileNames == []. - -recover_crashed_compaction(Dir, TmpFileName, NonTmpRelatedFileName) -> - %% Because a msg can legitimately appear multiple times in the - %% same file, identifying the contents of the tmp file and where - %% they came from is non-trivial. If we are recovering a crashed - %% compaction then we will be rebuilding the index, which can cope - %% with duplicates appearing. Thus the simplest and safest thing - %% to do is to append the contents of the tmp file to its main - %% file. - {ok, TmpHdl} = open_file(Dir, TmpFileName, ?READ_MODE), - {ok, MainHdl} = open_file(Dir, NonTmpRelatedFileName, - ?READ_MODE ++ ?WRITE_MODE), - {ok, _End} = file_handle_cache:position(MainHdl, eof), - Size = filelib:file_size(form_filename(Dir, TmpFileName)), - {ok, Size} = file_handle_cache:copy(TmpHdl, MainHdl, Size), - ok = file_handle_cache:close(MainHdl), - ok = file_handle_cache:delete(TmpHdl), - ok. - -scan_file_for_valid_messages(Dir, FileName) -> - case open_file(Dir, FileName, ?READ_MODE) of - {ok, Hdl} -> Valid = rabbit_msg_file:scan( - Hdl, filelib:file_size( - form_filename(Dir, FileName)), - fun scan_fun/2, []), - ok = file_handle_cache:close(Hdl), - Valid; - {error, enoent} -> {ok, [], 0}; - {error, Reason} -> {error, {unable_to_scan_file, FileName, Reason}} - end. - -scan_fun({MsgId, TotalSize, Offset, _Msg}, Acc) -> - [{MsgId, TotalSize, Offset} | Acc]. - -%% Takes the list in *ascending* order (i.e. eldest message -%% first). This is the opposite of what scan_file_for_valid_messages -%% produces. The list of msgs that is produced is youngest first. -drop_contiguous_block_prefix(L) -> drop_contiguous_block_prefix(L, 0). - -drop_contiguous_block_prefix([], ExpectedOffset) -> - {ExpectedOffset, []}; -drop_contiguous_block_prefix([#msg_location { offset = ExpectedOffset, - total_size = TotalSize } | Tail], - ExpectedOffset) -> - ExpectedOffset1 = ExpectedOffset + TotalSize, - drop_contiguous_block_prefix(Tail, ExpectedOffset1); -drop_contiguous_block_prefix(MsgsAfterGap, ExpectedOffset) -> - {ExpectedOffset, MsgsAfterGap}. - -build_index(true, _StartupFunState, - State = #msstate { file_summary_ets = FileSummaryEts }) -> - ets:foldl( - fun (#file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize, - file = File }, - {_Offset, State1 = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize }}) -> - {FileSize, State1 #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize, - current_file = File }} - end, {0, State}, FileSummaryEts); -build_index(false, {MsgRefDeltaGen, MsgRefDeltaGenInit}, - State = #msstate { dir = Dir }) -> - ok = count_msg_refs(MsgRefDeltaGen, MsgRefDeltaGenInit, State), - {ok, Pid} = gatherer:start_link(), - case [filename_to_num(FileName) || - FileName <- list_sorted_file_names(Dir, ?FILE_EXTENSION)] of - [] -> build_index(Pid, undefined, [State #msstate.current_file], - State); - Files -> {Offset, State1} = build_index(Pid, undefined, Files, State), - {Offset, lists:foldl(fun delete_file_if_empty/2, - State1, Files)} - end. - -build_index(Gatherer, Left, [], - State = #msstate { file_summary_ets = FileSummaryEts, - sum_valid_data = SumValid, - sum_file_size = SumFileSize }) -> - case gatherer:out(Gatherer) of - empty -> - unlink(Gatherer), - ok = gatherer:stop(Gatherer), - ok = index_delete_by_file(undefined, State), - Offset = case ets:lookup(FileSummaryEts, Left) of - [] -> 0; - [#file_summary { file_size = FileSize }] -> FileSize - end, - {Offset, State #msstate { current_file = Left }}; - {value, #file_summary { valid_total_size = ValidTotalSize, - file_size = FileSize } = FileSummary} -> - true = ets:insert_new(FileSummaryEts, FileSummary), - build_index(Gatherer, Left, [], - State #msstate { - sum_valid_data = SumValid + ValidTotalSize, - sum_file_size = SumFileSize + FileSize }) - end; -build_index(Gatherer, Left, [File|Files], State) -> - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> build_index_worker(Gatherer, State, - Left, File, Files) - end), - build_index(Gatherer, File, Files, State). - -build_index_worker(Gatherer, State = #msstate { dir = Dir }, - Left, File, Files) -> - {ok, Messages, FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - {ValidMessages, ValidTotalSize} = - lists:foldl( - fun (Obj = {MsgId, TotalSize, Offset}, {VMAcc, VTSAcc}) -> - case index_lookup(MsgId, State) of - #msg_location { file = undefined } = StoreEntry -> - ok = index_update(StoreEntry #msg_location { - file = File, offset = Offset, - total_size = TotalSize }, - State), - {[Obj | VMAcc], VTSAcc + TotalSize}; - _ -> - {VMAcc, VTSAcc} - end - end, {[], 0}, Messages), - {Right, FileSize1} = - case Files of - %% if it's the last file, we'll truncate to remove any - %% rubbish above the last valid message. This affects the - %% file size. - [] -> {undefined, case ValidMessages of - [] -> 0; - _ -> {_MsgId, TotalSize, Offset} = - lists:last(ValidMessages), - Offset + TotalSize - end}; - [F|_] -> {F, FileSize} - end, - ok = gatherer:in(Gatherer, #file_summary { - file = File, - valid_total_size = ValidTotalSize, - left = Left, - right = Right, - file_size = FileSize1, - locked = false, - readers = 0 }), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- internal -%%---------------------------------------------------------------------------- - -maybe_roll_to_new_file( - Offset, - State = #msstate { dir = Dir, - current_file_handle = CurHdl, - current_file = CurFile, - file_summary_ets = FileSummaryEts, - cur_file_cache_ets = CurFileCacheEts, - file_size_limit = FileSizeLimit }) - when Offset >= FileSizeLimit -> - State1 = internal_sync(State), - ok = file_handle_cache:close(CurHdl), - NextFile = CurFile + 1, - {ok, NextHdl} = open_file(Dir, filenum_to_name(NextFile), ?WRITE_MODE), - true = ets:insert_new(FileSummaryEts, #file_summary { - file = NextFile, - valid_total_size = 0, - left = CurFile, - right = undefined, - file_size = 0, - locked = false, - readers = 0 }), - true = ets:update_element(FileSummaryEts, CurFile, - {#file_summary.right, NextFile}), - true = ets:match_delete(CurFileCacheEts, {'_', '_', 0}), - maybe_compact(State1 #msstate { current_file_handle = NextHdl, - current_file = NextFile }); -maybe_roll_to_new_file(_, State) -> - State. - -maybe_compact(State = #msstate { sum_valid_data = SumValid, - sum_file_size = SumFileSize, - gc_pid = GCPid, - pending_gc_completion = Pending, - file_summary_ets = FileSummaryEts, - file_size_limit = FileSizeLimit }) - when SumFileSize > 2 * FileSizeLimit andalso - (SumFileSize - SumValid) / SumFileSize > ?GARBAGE_FRACTION -> - %% TODO: the algorithm here is sub-optimal - it may result in a - %% complete traversal of FileSummaryEts. - case ets:first(FileSummaryEts) of - '$end_of_table' -> - State; - First -> - case find_files_to_combine(FileSummaryEts, FileSizeLimit, - ets:lookup(FileSummaryEts, First)) of - not_found -> - State; - {Src, Dst} -> - Pending1 = orddict_store(Dst, [], - orddict_store(Src, [], Pending)), - State1 = close_handle(Src, close_handle(Dst, State)), - true = ets:update_element(FileSummaryEts, Src, - {#file_summary.locked, true}), - true = ets:update_element(FileSummaryEts, Dst, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:combine(GCPid, Src, Dst), - State1 #msstate { pending_gc_completion = Pending1 } - end - end; -maybe_compact(State) -> - State. - -find_files_to_combine(FileSummaryEts, FileSizeLimit, - [#file_summary { file = Dst, - valid_total_size = DstValid, - right = Src, - locked = DstLocked }]) -> - case Src of - undefined -> - not_found; - _ -> - [#file_summary { file = Src, - valid_total_size = SrcValid, - left = Dst, - right = SrcRight, - locked = SrcLocked }] = Next = - ets:lookup(FileSummaryEts, Src), - case SrcRight of - undefined -> not_found; - _ -> case (DstValid + SrcValid =< FileSizeLimit) andalso - (DstValid > 0) andalso (SrcValid > 0) andalso - not (DstLocked orelse SrcLocked) of - true -> {Src, Dst}; - false -> find_files_to_combine( - FileSummaryEts, FileSizeLimit, Next) - end - end - end. - -delete_file_if_empty(File, State = #msstate { current_file = File }) -> - State; -delete_file_if_empty(File, State = #msstate { - gc_pid = GCPid, - file_summary_ets = FileSummaryEts, - pending_gc_completion = Pending }) -> - [#file_summary { valid_total_size = ValidData, - locked = false }] = - ets:lookup(FileSummaryEts, File), - case ValidData of - %% don't delete the file_summary_ets entry for File here - %% because we could have readers which need to be able to - %% decrement the readers count. - 0 -> true = ets:update_element(FileSummaryEts, File, - {#file_summary.locked, true}), - ok = rabbit_msg_store_gc:delete(GCPid, File), - Pending1 = orddict_store(File, [], Pending), - close_handle(File, - State #msstate { pending_gc_completion = Pending1 }); - _ -> State - end. - -cleanup_after_file_deletion(File, - #msstate { file_handles_ets = FileHandlesEts, - file_summary_ets = FileSummaryEts, - clients = Clients }) -> - %% Ensure that any clients that have open fhs to the file close - %% them before using them again. This has to be done here (given - %% it's done in the msg_store, and not the gc), and not when - %% starting up the GC, because if done when starting up the GC, - %% the client could find the close, and close and reopen the fh, - %% whilst the GC is waiting for readers to disappear, before it's - %% actually done the GC. - true = mark_handle_to_close(Clients, FileHandlesEts, File, true), - [#file_summary { left = Left, - right = Right, - locked = true, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - %% We'll never delete the current file, so right is never undefined - true = Right =/= undefined, %% ASSERTION - true = ets:update_element(FileSummaryEts, Right, - {#file_summary.left, Left}), - %% ensure the double linked list is maintained - true = case Left of - undefined -> true; %% File is the eldest file (left-most) - _ -> ets:update_element(FileSummaryEts, Left, - {#file_summary.right, Right}) - end, - true = ets:delete(FileSummaryEts, File), - ok. - -%%---------------------------------------------------------------------------- -%% garbage collection / compaction / aggregation -- external -%%---------------------------------------------------------------------------- - -has_readers(File, #gc_state { file_summary_ets = FileSummaryEts }) -> - [#file_summary { locked = true, readers = Count }] = - ets:lookup(FileSummaryEts, File), - Count /= 0. - -combine_files(Source, Destination, - State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { - readers = 0, - left = Destination, - valid_total_size = SourceValid, - file_size = SourceFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Source), - [#file_summary { - readers = 0, - right = Source, - valid_total_size = DestinationValid, - file_size = DestinationFileSize, - locked = true }] = ets:lookup(FileSummaryEts, Destination), - - SourceName = filenum_to_name(Source), - DestinationName = filenum_to_name(Destination), - {ok, SourceHdl} = open_file(Dir, SourceName, - ?READ_AHEAD_MODE), - {ok, DestinationHdl} = open_file(Dir, DestinationName, - ?READ_AHEAD_MODE ++ ?WRITE_MODE), - TotalValidData = SourceValid + DestinationValid, - %% if DestinationValid =:= DestinationContiguousTop then we don't - %% need a tmp file - %% if they're not equal, then we need to write out everything past - %% the DestinationContiguousTop to a tmp file then truncate, - %% copy back in, and then copy over from Source - %% otherwise we just truncate straight away and copy over from Source - {DestinationWorkList, DestinationValid} = - load_and_vacuum_message_file(Destination, State), - {DestinationContiguousTop, DestinationWorkListTail} = - drop_contiguous_block_prefix(DestinationWorkList), - case DestinationWorkListTail of - [] -> ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData); - _ -> Tmp = filename:rootname(DestinationName) ++ ?FILE_EXTENSION_TMP, - {ok, TmpHdl} = open_file(Dir, Tmp, ?READ_AHEAD_MODE++?WRITE_MODE), - ok = copy_messages( - DestinationWorkListTail, DestinationContiguousTop, - DestinationValid, DestinationHdl, TmpHdl, Destination, - State), - TmpSize = DestinationValid - DestinationContiguousTop, - %% so now Tmp contains everything we need to salvage - %% from Destination, and index_state has been updated to - %% reflect the compaction of Destination so truncate - %% Destination and copy from Tmp back to the end - {ok, 0} = file_handle_cache:position(TmpHdl, 0), - ok = truncate_and_extend_file( - DestinationHdl, DestinationContiguousTop, TotalValidData), - {ok, TmpSize} = - file_handle_cache:copy(TmpHdl, DestinationHdl, TmpSize), - %% position in DestinationHdl should now be DestinationValid - ok = file_handle_cache:sync(DestinationHdl), - ok = file_handle_cache:delete(TmpHdl) - end, - {SourceWorkList, SourceValid} = load_and_vacuum_message_file(Source, State), - ok = copy_messages(SourceWorkList, DestinationValid, TotalValidData, - SourceHdl, DestinationHdl, Destination, State), - %% tidy up - ok = file_handle_cache:close(DestinationHdl), - ok = file_handle_cache:close(SourceHdl), - - %% don't update dest.right, because it could be changing at the - %% same time - true = ets:update_element( - FileSummaryEts, Destination, - [{#file_summary.valid_total_size, TotalValidData}, - {#file_summary.file_size, TotalValidData}]), - - Reclaimed = SourceFileSize + DestinationFileSize - TotalValidData, - gen_server2:cast(Server, {combine_files, Source, Destination, Reclaimed}), - safe_file_delete_fun(Source, Dir, FileHandlesEts). - -delete_file(File, State = #gc_state { file_summary_ets = FileSummaryEts, - file_handles_ets = FileHandlesEts, - dir = Dir, - msg_store = Server }) -> - [#file_summary { valid_total_size = 0, - locked = true, - file_size = FileSize, - readers = 0 }] = ets:lookup(FileSummaryEts, File), - {[], 0} = load_and_vacuum_message_file(File, State), - gen_server2:cast(Server, {delete_file, File, FileSize}), - safe_file_delete_fun(File, Dir, FileHandlesEts). - -load_and_vacuum_message_file(File, #gc_state { dir = Dir, - index_module = Index, - index_state = IndexState }) -> - %% Messages here will be end-of-file at start-of-list - {ok, Messages, _FileSize} = - scan_file_for_valid_messages(Dir, filenum_to_name(File)), - %% foldl will reverse so will end up with msgs in ascending offset order - lists:foldl( - fun ({MsgId, TotalSize, Offset}, Acc = {List, Size}) -> - case Index:lookup(MsgId, IndexState) of - #msg_location { file = File, total_size = TotalSize, - offset = Offset, ref_count = 0 } = Entry -> - ok = Index:delete_object(Entry, IndexState), - Acc; - #msg_location { file = File, total_size = TotalSize, - offset = Offset } = Entry -> - {[ Entry | List ], TotalSize + Size}; - _ -> - Acc - end - end, {[], 0}, Messages). - -copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, - Destination, #gc_state { index_module = Index, - index_state = IndexState }) -> - Copy = fun ({BlockStart, BlockEnd}) -> - BSize = BlockEnd - BlockStart, - {ok, BlockStart} = - file_handle_cache:position(SourceHdl, BlockStart), - {ok, BSize} = - file_handle_cache:copy(SourceHdl, DestinationHdl, BSize) - end, - case - lists:foldl( - fun (#msg_location { msg_id = MsgId, offset = Offset, - total_size = TotalSize }, - {CurOffset, Block = {BlockStart, BlockEnd}}) -> - %% CurOffset is in the DestinationFile. - %% Offset, BlockStart and BlockEnd are in the SourceFile - %% update MsgLocation to reflect change of file and offset - ok = Index:update_fields(MsgId, - [{#msg_location.file, Destination}, - {#msg_location.offset, CurOffset}], - IndexState), - {CurOffset + TotalSize, - case BlockEnd of - undefined -> - %% base case, called only for the first list elem - {Offset, Offset + TotalSize}; - Offset -> - %% extend the current block because the - %% next msg follows straight on - {BlockStart, BlockEnd + TotalSize}; - _ -> - %% found a gap, so actually do the work for - %% the previous block - Copy(Block), - {Offset, Offset + TotalSize} - end} - end, {InitOffset, {undefined, undefined}}, WorkList) of - {FinalOffset, Block} -> - case WorkList of - [] -> ok; - _ -> Copy(Block), %% do the last remaining block - ok = file_handle_cache:sync(DestinationHdl) - end; - {FinalOffsetZ, _Block} -> - {gc_error, [{expected, FinalOffset}, - {got, FinalOffsetZ}, - {destination, Destination}]} - end. - -force_recovery(BaseDir, Store) -> - Dir = filename:join(BaseDir, atom_to_list(Store)), - case file:delete(filename:join(Dir, ?CLEAN_FILENAME)) of - ok -> ok; - {error, enoent} -> ok - end, - recover_crashed_compactions(BaseDir), - ok. - -foreach_file(D, Fun, Files) -> - [ok = Fun(filename:join(D, File)) || File <- Files]. - -foreach_file(D1, D2, Fun, Files) -> - [ok = Fun(filename:join(D1, File), filename:join(D2, File)) || File <- Files]. - -transform_dir(BaseDir, Store, TransformFun) -> - Dir = filename:join(BaseDir, atom_to_list(Store)), - TmpDir = filename:join(Dir, ?TRANSFORM_TMP), - TransformFile = fun (A, B) -> transform_msg_file(A, B, TransformFun) end, - CopyFile = fun (Src, Dst) -> {ok, _Bytes} = file:copy(Src, Dst), ok end, - case filelib:is_dir(TmpDir) of - true -> throw({error, transform_failed_previously}); - false -> FileList = list_sorted_file_names(Dir, ?FILE_EXTENSION), - foreach_file(Dir, TmpDir, TransformFile, FileList), - foreach_file(Dir, fun file:delete/1, FileList), - foreach_file(TmpDir, Dir, CopyFile, FileList), - foreach_file(TmpDir, fun file:delete/1, FileList), - ok = file:del_dir(TmpDir) - end. - -transform_msg_file(FileOld, FileNew, TransformFun) -> - ok = rabbit_misc:ensure_parent_dirs_exist(FileNew), - {ok, RefOld} = file_handle_cache:open(FileOld, [raw, binary, read], []), - {ok, RefNew} = file_handle_cache:open(FileNew, [raw, binary, write], - [{write_buffer, - ?HANDLE_CACHE_BUFFER_SIZE}]), - {ok, _Acc, _IgnoreSize} = - rabbit_msg_file:scan( - RefOld, filelib:file_size(FileOld), - fun({MsgId, _Size, _Offset, BinMsg}, ok) -> - {ok, MsgNew} = case binary_to_term(BinMsg) of - <<>> -> {ok, <<>>}; %% dying client marker - Msg -> TransformFun(Msg) - end, - {ok, _} = rabbit_msg_file:append(RefNew, MsgId, MsgNew), - ok - end, ok), - ok = file_handle_cache:close(RefOld), - ok = file_handle_cache:close(RefNew), - ok. diff --git a/src/rabbit_msg_store_ets_index.erl b/src/rabbit_msg_store_ets_index.erl deleted file mode 100644 index d6dc5568..00000000 --- a/src/rabbit_msg_store_ets_index.erl +++ /dev/null @@ -1,79 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_ets_index). - --behaviour(rabbit_msg_store_index). - --export([new/1, recover/1, - lookup/2, insert/2, update/2, update_fields/3, delete/2, - delete_object/2, delete_by_file/2, terminate/1]). - --define(MSG_LOC_NAME, rabbit_msg_store_ets_index). --define(FILENAME, "msg_store_index.ets"). - --include("rabbit_msg_store_index.hrl"). - --record(state, { table, dir }). - -new(Dir) -> - file:delete(filename:join(Dir, ?FILENAME)), - Tid = ets:new(?MSG_LOC_NAME, [set, public, {keypos, #msg_location.msg_id}]), - #state { table = Tid, dir = Dir }. - -recover(Dir) -> - Path = filename:join(Dir, ?FILENAME), - case ets:file2tab(Path) of - {ok, Tid} -> file:delete(Path), - {ok, #state { table = Tid, dir = Dir }}; - Error -> Error - end. - -lookup(Key, State) -> - case ets:lookup(State #state.table, Key) of - [] -> not_found; - [Entry] -> Entry - end. - -insert(Obj, State) -> - true = ets:insert_new(State #state.table, Obj), - ok. - -update(Obj, State) -> - true = ets:insert(State #state.table, Obj), - ok. - -update_fields(Key, Updates, State) -> - true = ets:update_element(State #state.table, Key, Updates), - ok. - -delete(Key, State) -> - true = ets:delete(State #state.table, Key), - ok. - -delete_object(Obj, State) -> - true = ets:delete_object(State #state.table, Obj), - ok. - -delete_by_file(File, State) -> - MatchHead = #msg_location { file = File, _ = '_' }, - ets:select_delete(State #state.table, [{MatchHead, [], [true]}]), - ok. - -terminate(#state { table = MsgLocations, dir = Dir }) -> - ok = ets:tab2file(MsgLocations, filename:join(Dir, ?FILENAME), - [{extended_info, [object_count]}]), - ets:delete(MsgLocations). diff --git a/src/rabbit_msg_store_gc.erl b/src/rabbit_msg_store_gc.erl deleted file mode 100644 index 77f1f04e..00000000 --- a/src/rabbit_msg_store_gc.erl +++ /dev/null @@ -1,137 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_gc). - --behaviour(gen_server2). - --export([start_link/1, combine/3, delete/2, no_readers/2, stop/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - --record(state, - { pending_no_readers, - on_action, - msg_store_state - }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (rabbit_msg_store:gc_state()) -> - rabbit_types:ok_pid_or_error()). --spec(combine/3 :: (pid(), rabbit_msg_store:file_num(), - rabbit_msg_store:file_num()) -> 'ok'). --spec(delete/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(no_readers/2 :: (pid(), rabbit_msg_store:file_num()) -> 'ok'). --spec(stop/1 :: (pid()) -> 'ok'). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link(MsgStoreState) -> - gen_server2:start_link(?MODULE, [MsgStoreState], - [{timeout, infinity}]). - -combine(Server, Source, Destination) -> - gen_server2:cast(Server, {combine, Source, Destination}). - -delete(Server, File) -> - gen_server2:cast(Server, {delete, File}). - -no_readers(Server, File) -> - gen_server2:cast(Server, {no_readers, File}). - -stop(Server) -> - gen_server2:call(Server, stop, infinity). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -%%---------------------------------------------------------------------------- - -init([MsgStoreState]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - {ok, #state { pending_no_readers = dict:new(), - on_action = [], - msg_store_state = MsgStoreState }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call(stop, _From, State) -> - {stop, normal, ok, State}. - -handle_cast({combine, Source, Destination}, State) -> - {noreply, attempt_action(combine, [Source, Destination], State), hibernate}; - -handle_cast({delete, File}, State) -> - {noreply, attempt_action(delete, [File], State), hibernate}; - -handle_cast({no_readers, File}, - State = #state { pending_no_readers = Pending }) -> - {noreply, case dict:find(File, Pending) of - error -> - State; - {ok, {Action, Files}} -> - Pending1 = dict:erase(File, Pending), - attempt_action( - Action, Files, - State #state { pending_no_readers = Pending1 }) - end, hibernate}; - -handle_cast({set_maximum_since_use, Age}, State) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, State, hibernate}. - -handle_info(Info, State) -> - {stop, {unhandled_info, Info}, State}. - -terminate(_Reason, State) -> - State. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -attempt_action(Action, Files, - State = #state { pending_no_readers = Pending, - on_action = Thunks, - msg_store_state = MsgStoreState }) -> - case [File || File <- Files, - rabbit_msg_store:has_readers(File, MsgStoreState)] of - [] -> State #state { - on_action = lists:filter( - fun (Thunk) -> not Thunk() end, - [do_action(Action, Files, MsgStoreState) | - Thunks]) }; - [File | _] -> Pending1 = dict:store(File, {Action, Files}, Pending), - State #state { pending_no_readers = Pending1 } - end. - -do_action(combine, [Source, Destination], MsgStoreState) -> - rabbit_msg_store:combine_files(Source, Destination, MsgStoreState); -do_action(delete, [File], MsgStoreState) -> - rabbit_msg_store:delete_file(File, MsgStoreState). diff --git a/src/rabbit_msg_store_index.erl b/src/rabbit_msg_store_index.erl deleted file mode 100644 index ef8b7cdf..00000000 --- a/src/rabbit_msg_store_index.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_msg_store_index). - --export([behaviour_info/1]). - -behaviour_info(callbacks) -> - [{new, 1}, - {recover, 1}, - {lookup, 2}, - {insert, 2}, - {update, 2}, - {update_fields, 3}, - {delete, 2}, - {delete_by_file, 2}, - {terminate, 1}]; -behaviour_info(_Other) -> - undefined. diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl deleted file mode 100644 index b944ec81..00000000 --- a/src/rabbit_net.erl +++ /dev/null @@ -1,143 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_net). --include("rabbit.hrl"). - --export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - recv/1, async_recv/3, port_command/2, setopts/2, send/2, close/1, - sockname/1, peername/1, peercert/1]). - -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([socket/0]). - --type(stat_option() :: - 'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' | - 'send_cnt' | 'send_max' | 'send_avg' | 'send_oct' | 'send_pend'). --type(ok_val_or_error(A) :: rabbit_types:ok_or_error2(A, any())). --type(ok_or_any_error() :: rabbit_types:ok_or_error(any())). --type(socket() :: port() | #ssl_socket{}). - --spec(is_ssl/1 :: (socket()) -> boolean()). --spec(ssl_info/1 :: (socket()) - -> 'nossl' | ok_val_or_error( - {atom(), {atom(), atom(), atom()}})). --spec(controlling_process/2 :: (socket(), pid()) -> ok_or_any_error()). --spec(getstat/2 :: - (socket(), [stat_option()]) - -> ok_val_or_error([{stat_option(), integer()}])). --spec(recv/1 :: (socket()) -> - {'data', [char()] | binary()} | 'closed' | - rabbit_types:error(any()) | {'other', any()}). --spec(async_recv/3 :: - (socket(), integer(), timeout()) -> rabbit_types:ok(any())). --spec(port_command/2 :: (socket(), iolist()) -> 'true'). --spec(setopts/2 :: (socket(), [{atom(), any()} | - {raw, non_neg_integer(), non_neg_integer(), - binary()}]) -> ok_or_any_error()). --spec(send/2 :: (socket(), binary() | iolist()) -> ok_or_any_error()). --spec(close/1 :: (socket()) -> ok_or_any_error()). --spec(sockname/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peername/1 :: - (socket()) - -> ok_val_or_error({inet:ip_address(), rabbit_networking:ip_port()})). --spec(peercert/1 :: - (socket()) - -> 'nossl' | ok_val_or_error(rabbit_ssl:certificate())). - --endif. - -%%--------------------------------------------------------------------------- - --define(IS_SSL(Sock), is_record(Sock, ssl_socket)). - -is_ssl(Sock) -> ?IS_SSL(Sock). - -ssl_info(Sock) when ?IS_SSL(Sock) -> - ssl:connection_info(Sock#ssl_socket.ssl); -ssl_info(_Sock) -> - nossl. - -controlling_process(Sock, Pid) when ?IS_SSL(Sock) -> - ssl:controlling_process(Sock#ssl_socket.ssl, Pid); -controlling_process(Sock, Pid) when is_port(Sock) -> - gen_tcp:controlling_process(Sock, Pid). - -getstat(Sock, Stats) when ?IS_SSL(Sock) -> - inet:getstat(Sock#ssl_socket.tcp, Stats); -getstat(Sock, Stats) when is_port(Sock) -> - inet:getstat(Sock, Stats). - -recv(Sock) when ?IS_SSL(Sock) -> - recv(Sock#ssl_socket.ssl, {ssl, ssl_closed, ssl_error}); -recv(Sock) when is_port(Sock) -> - recv(Sock, {tcp, tcp_closed, tcp_error}). - -recv(S, {DataTag, ClosedTag, ErrorTag}) -> - receive - {DataTag, S, Data} -> {data, Data}; - {ClosedTag, S} -> closed; - {ErrorTag, S, Reason} -> {error, Reason}; - Other -> {other, Other} - end. - -async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> - Pid = self(), - Ref = make_ref(), - - spawn(fun () -> Pid ! {inet_async, Sock, Ref, - ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)} - end), - - {ok, Ref}; -async_recv(Sock, Length, infinity) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, -1); -async_recv(Sock, Length, Timeout) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, Timeout). - -port_command(Sock, Data) when ?IS_SSL(Sock) -> - case ssl:send(Sock#ssl_socket.ssl, Data) of - ok -> self() ! {inet_reply, Sock, ok}, - true; - {error, Reason} -> erlang:error(Reason) - end; -port_command(Sock, Data) when is_port(Sock) -> - erlang:port_command(Sock, Data). - -setopts(Sock, Options) when ?IS_SSL(Sock) -> - ssl:setopts(Sock#ssl_socket.ssl, Options); -setopts(Sock, Options) when is_port(Sock) -> - inet:setopts(Sock, Options). - -send(Sock, Data) when ?IS_SSL(Sock) -> ssl:send(Sock#ssl_socket.ssl, Data); -send(Sock, Data) when is_port(Sock) -> gen_tcp:send(Sock, Data). - -close(Sock) when ?IS_SSL(Sock) -> ssl:close(Sock#ssl_socket.ssl); -close(Sock) when is_port(Sock) -> gen_tcp:close(Sock). - -sockname(Sock) when ?IS_SSL(Sock) -> ssl:sockname(Sock#ssl_socket.ssl); -sockname(Sock) when is_port(Sock) -> inet:sockname(Sock). - -peername(Sock) when ?IS_SSL(Sock) -> ssl:peername(Sock#ssl_socket.ssl); -peername(Sock) when is_port(Sock) -> inet:peername(Sock). - -peercert(Sock) when ?IS_SSL(Sock) -> ssl:peercert(Sock#ssl_socket.ssl); -peercert(Sock) when is_port(Sock) -> nossl. diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl deleted file mode 100644 index a10c021c..00000000 --- a/src/rabbit_networking.erl +++ /dev/null @@ -1,398 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_networking). - --export([boot/0, start/0, start_tcp_listener/1, start_ssl_listener/2, - stop_tcp_listener/1, on_node_down/1, active_listeners/0, - node_listeners/1, connections/0, connection_info_keys/0, - connection_info/1, connection_info/2, - connection_info_all/0, connection_info_all/1, - close_connection/2, force_connection_event_refresh/0]). - -%%used by TCP-based transports, e.g. STOMP adapter --export([check_tcp_listener_address/2, - ensure_ssl/0, ssl_transform_fun/1]). - --export([tcp_listener_started/3, tcp_listener_stopped/3, - start_client/1, start_ssl_client/2]). - --include("rabbit.hrl"). --include_lib("kernel/include/inet.hrl"). - --define(SSL_TIMEOUT, 5). %% seconds - --define(FIRST_TEST_BIND_PORT, 10000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([ip_port/0, hostname/0]). - --type(hostname() :: inet:hostname()). --type(ip_port() :: inet:ip_port()). - --type(family() :: atom()). --type(listener_config() :: ip_port() | - {hostname(), ip_port()} | - {hostname(), ip_port(), family()}). - --spec(start/0 :: () -> 'ok'). --spec(start_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(start_ssl_listener/2 :: - (listener_config(), rabbit_types:infos()) -> 'ok'). --spec(stop_tcp_listener/1 :: (listener_config()) -> 'ok'). --spec(active_listeners/0 :: () -> [rabbit_types:listener()]). --spec(node_listeners/1 :: (node()) -> [rabbit_types:listener()]). --spec(connections/0 :: () -> [rabbit_types:connection()]). --spec(connection_info_keys/0 :: () -> rabbit_types:info_keys()). --spec(connection_info/1 :: - (rabbit_types:connection()) -> rabbit_types:infos()). --spec(connection_info/2 :: - (rabbit_types:connection(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(connection_info_all/0 :: () -> [rabbit_types:infos()]). --spec(connection_info_all/1 :: - (rabbit_types:info_keys()) -> [rabbit_types:infos()]). --spec(close_connection/2 :: (pid(), string()) -> 'ok'). --spec(force_connection_event_refresh/0 :: () -> 'ok'). - --spec(on_node_down/1 :: (node()) -> 'ok'). --spec(check_tcp_listener_address/2 :: (atom(), listener_config()) - -> [{inet:ip_address(), ip_port(), family(), atom()}]). - --endif. - -%%---------------------------------------------------------------------------- - -boot() -> - ok = start(), - ok = boot_tcp(), - ok = boot_ssl(). - -boot_tcp() -> - {ok, TcpListeners} = application:get_env(tcp_listeners), - [ok = start_tcp_listener(Listener) || Listener <- TcpListeners], - ok. - -boot_ssl() -> - case application:get_env(ssl_listeners) of - {ok, []} -> - ok; - {ok, SslListeners} -> - [start_ssl_listener(Listener, ensure_ssl()) - || Listener <- SslListeners], - ok - end. - -start() -> - {ok,_} = supervisor2:start_child( - rabbit_sup, - {rabbit_tcp_client_sup, - {rabbit_client_sup, start_link, - [{local, rabbit_tcp_client_sup}, - {rabbit_connection_sup,start_link,[]}]}, - transient, infinity, supervisor, [rabbit_client_sup]}), - ok. - -%% inet_parse:address takes care of ip string, like "0.0.0.0" -%% inet:getaddr returns immediately for ip tuple {0,0,0,0}, -%% and runs 'inet_gethost' port process for dns lookups. -%% On Windows inet:getaddr runs dns resolver for ip string, which may fail. - -getaddr(Host, Family) -> - case inet_parse:address(Host) of - {ok, IPAddress} -> [{IPAddress, resolve_family(IPAddress, Family)}]; - {error, _} -> gethostaddr(Host, Family) - end. - -gethostaddr(Host, auto) -> - Lookups = [{Family, inet:getaddr(Host, Family)} || Family <- [inet, inet6]], - case [{IP, Family} || {Family, {ok, IP}} <- Lookups] of - [] -> host_lookup_error(Host, Lookups); - IPs -> IPs - end; - -gethostaddr(Host, Family) -> - case inet:getaddr(Host, Family) of - {ok, IPAddress} -> [{IPAddress, Family}]; - {error, Reason} -> host_lookup_error(Host, Reason) - end. - -host_lookup_error(Host, Reason) -> - error_logger:error_msg("invalid host ~p - ~p~n", [Host, Reason]), - throw({error, {invalid_host, Host, Reason}}). - -resolve_family({_,_,_,_}, auto) -> inet; -resolve_family({_,_,_,_,_,_,_,_}, auto) -> inet6; -resolve_family(IP, auto) -> throw({error, {strange_family, IP}}); -resolve_family(_, F) -> F. - -ensure_ssl() -> - ok = rabbit_misc:start_applications([crypto, public_key, ssl]), - {ok, SslOptsConfig} = application:get_env(rabbit, ssl_options), - - % unknown_ca errors are silently ignored prior to R14B unless we - % supply this verify_fun - remove when at least R14B is required - case proplists:get_value(verify, SslOptsConfig, verify_none) of - verify_none -> SslOptsConfig; - verify_peer -> [{verify_fun, fun([]) -> true; - ([_|_]) -> false - end} - | SslOptsConfig] - end. - -ssl_transform_fun(SslOpts) -> - fun (Sock) -> - case catch ssl:ssl_accept(Sock, SslOpts, ?SSL_TIMEOUT * 1000) of - {ok, SslSock} -> - rabbit_log:info("upgraded TCP connection ~p to SSL~n", - [self()]), - {ok, #ssl_socket{tcp = Sock, ssl = SslSock}}; - {error, Reason} -> - {error, {ssl_upgrade_error, Reason}}; - {'EXIT', Reason} -> - {error, {ssl_upgrade_failure, Reason}} - end - end. - -check_tcp_listener_address(NamePrefix, Port) when is_integer(Port) -> - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {"auto", Port}) -> - %% Variant to prevent lots of hacking around in bash and batch files - check_tcp_listener_address_auto(NamePrefix, Port); - -check_tcp_listener_address(NamePrefix, {Host, Port}) -> - %% auto: determine family IPv4 / IPv6 after converting to IP address - check_tcp_listener_address(NamePrefix, {Host, Port, auto}); - -check_tcp_listener_address(NamePrefix, {Host, Port, Family0}) -> - if is_integer(Port) andalso (Port >= 0) andalso (Port =< 65535) -> ok; - true -> error_logger:error_msg("invalid port ~p - not 0..65535~n", - [Port]), - throw({error, {invalid_port, Port}}) - end, - [{IPAddress, Port, Family, - rabbit_misc:tcp_name(NamePrefix, IPAddress, Port)} || - {IPAddress, Family} <- getaddr(Host, Family0)]. - -check_tcp_listener_address_auto(NamePrefix, Port) -> - lists:append([check_tcp_listener_address(NamePrefix, Listener) || - Listener <- port_to_listeners(Port)]). - -start_tcp_listener(Listener) -> - start_listener(Listener, amqp, "TCP Listener", - {?MODULE, start_client, []}). - -start_ssl_listener(Listener, SslOpts) -> - start_listener(Listener, 'amqp/ssl', "SSL Listener", - {?MODULE, start_ssl_client, [SslOpts]}). - -start_listener(Listener, Protocol, Label, OnConnect) -> - [start_listener0(Spec, Protocol, Label, OnConnect) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -start_listener0({IPAddress, Port, Family, Name}, Protocol, Label, OnConnect) -> - {ok,_} = supervisor:start_child( - rabbit_sup, - {Name, - {tcp_listener_sup, start_link, - [IPAddress, Port, [Family | tcp_opts()], - {?MODULE, tcp_listener_started, [Protocol]}, - {?MODULE, tcp_listener_stopped, [Protocol]}, - OnConnect, Label]}, - transient, infinity, supervisor, [tcp_listener_sup]}). - -stop_tcp_listener(Listener) -> - [stop_tcp_listener0(Spec) || - Spec <- check_tcp_listener_address(rabbit_tcp_listener_sup, Listener)], - ok. - -stop_tcp_listener0({IPAddress, Port, _Family, Name}) -> - Name = rabbit_misc:tcp_name(rabbit_tcp_listener_sup, IPAddress, Port), - ok = supervisor:terminate_child(rabbit_sup, Name), - ok = supervisor:delete_child(rabbit_sup, Name). - -tcp_listener_started(Protocol, IPAddress, Port) -> - %% We need the ip to distinguish e.g. 0.0.0.0 and 127.0.0.1 - %% We need the host so we can distinguish multiple instances of the above - %% in a cluster. - ok = mnesia:dirty_write( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -tcp_listener_stopped(Protocol, IPAddress, Port) -> - ok = mnesia:dirty_delete_object( - rabbit_listener, - #listener{node = node(), - protocol = Protocol, - host = tcp_host(IPAddress), - ip_address = IPAddress, - port = Port}). - -active_listeners() -> - rabbit_misc:dirty_read_all(rabbit_listener). - -node_listeners(Node) -> - mnesia:dirty_read(rabbit_listener, Node). - -on_node_down(Node) -> - ok = mnesia:dirty_delete(rabbit_listener, Node). - -start_client(Sock, SockTransform) -> - {ok, _Child, Reader} = supervisor:start_child(rabbit_tcp_client_sup, []), - ok = rabbit_net:controlling_process(Sock, Reader), - Reader ! {go, Sock, SockTransform}, - Reader. - -start_client(Sock) -> - start_client(Sock, fun (S) -> {ok, S} end). - -start_ssl_client(SslOpts, Sock) -> - start_client(Sock, ssl_transform_fun(SslOpts)). - -connections() -> pg2_fixed:get_members(rabbit_network_connections). - -connection_info_keys() -> rabbit_reader:info_keys(). - -connection_info(Pid) -> rabbit_reader:info(Pid). -connection_info(Pid, Items) -> rabbit_reader:info(Pid, Items). - -connection_info_all() -> cmap(fun (Q) -> connection_info(Q) end). -connection_info_all(Items) -> cmap(fun (Q) -> connection_info(Q, Items) end). - -close_connection(Pid, Explanation) -> - case lists:member(Pid, connections()) of - true -> rabbit_reader:shutdown(Pid, Explanation); - false -> throw({error, {not_a_connection_pid, Pid}}) - end. - -force_connection_event_refresh() -> - cmap(fun (C) -> rabbit_reader:force_event_refresh(C) end). - -%%-------------------------------------------------------------------- - -tcp_host({0,0,0,0}) -> - hostname(); - -tcp_host({0,0,0,0,0,0,0,0}) -> - hostname(); - -tcp_host(IPAddress) -> - case inet:gethostbyaddr(IPAddress) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> rabbit_misc:ntoa(IPAddress) - end. - -hostname() -> - {ok, Hostname} = inet:gethostname(), - case inet:gethostbyname(Hostname) of - {ok, #hostent{h_name = Name}} -> Name; - {error, _Reason} -> Hostname - end. - -cmap(F) -> rabbit_misc:filter_exit_map(F, connections()). - -tcp_opts() -> - {ok, Opts} = application:get_env(rabbit, tcp_listen_options), - Opts. - -%%-------------------------------------------------------------------- - -%% There are three kinds of machine (for our purposes). -%% -%% * Those which treat IPv4 addresses as a special kind of IPv6 address -%% ("Single stack") -%% - Linux by default, Windows Vista and later -%% - We also treat any (hypothetical?) IPv6-only machine the same way -%% * Those which consider IPv6 and IPv4 to be completely separate things -%% ("Dual stack") -%% - OpenBSD, Windows XP / 2003, Linux if so configured -%% * Those which do not support IPv6. -%% - Ancient/weird OSes, Linux if so configured -%% -%% How to reconfigure Linux to test this: -%% Single stack (default): -%% echo 0 > /proc/sys/net/ipv6/bindv6only -%% Dual stack: -%% echo 1 > /proc/sys/net/ipv6/bindv6only -%% IPv4 only: -%% add ipv6.disable=1 to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub then -%% sudo update-grub && sudo reboot -%% -%% This matters in (and only in) the case where the sysadmin (or the -%% app descriptor) has only supplied a port and we wish to bind to -%% "all addresses". This means different things depending on whether -%% we're single or dual stack. On single stack binding to "::" -%% implicitly includes all IPv4 addresses, and subsequently attempting -%% to bind to "0.0.0.0" will fail. On dual stack, binding to "::" will -%% only bind to IPv6 addresses, and we need another listener bound to -%% "0.0.0.0" for IPv4. Finally, on IPv4-only systems we of course only -%% want to bind to "0.0.0.0". -%% -%% Unfortunately it seems there is no way to detect single vs dual stack -%% apart from attempting to bind to the port. -port_to_listeners(Port) -> - IPv4 = {"0.0.0.0", Port, inet}, - IPv6 = {"::", Port, inet6}, - case ipv6_status(?FIRST_TEST_BIND_PORT) of - single_stack -> [IPv6]; - ipv6_only -> [IPv6]; - dual_stack -> [IPv6, IPv4]; - ipv4_only -> [IPv4] - end. - -ipv6_status(TestPort) -> - IPv4 = [inet, {ip, {0,0,0,0}}], - IPv6 = [inet6, {ip, {0,0,0,0,0,0,0,0}}], - case gen_tcp:listen(TestPort, IPv6) of - {ok, LSock6} -> - case gen_tcp:listen(TestPort, IPv4) of - {ok, LSock4} -> - %% Dual stack - gen_tcp:close(LSock6), - gen_tcp:close(LSock4), - dual_stack; - %% Checking the error here would only let us - %% distinguish single stack IPv6 / IPv4 vs IPv6 only, - %% which we figure out below anyway. - {error, _} -> - gen_tcp:close(LSock6), - case gen_tcp:listen(TestPort, IPv4) of - %% Single stack - {ok, LSock4} -> gen_tcp:close(LSock4), - single_stack; - %% IPv6-only machine. Welcome to the future. - {error, eafnosupport} -> ipv6_only; - %% Dual stack machine with something already - %% on IPv4. - {error, _} -> ipv6_status(TestPort + 1) - end - end; - {error, eafnosupport} -> - %% IPv4-only machine. Welcome to the 90s. - ipv4_only; - {error, _} -> - %% Port in use - ipv6_status(TestPort + 1) - end. diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl deleted file mode 100644 index 1f30a2fc..00000000 --- a/src/rabbit_node_monitor.erl +++ /dev/null @@ -1,102 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_node_monitor). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). --export([notify_cluster/0, rabbit_running_on/1]). - --define(SERVER, ?MODULE). --define(RABBIT_UP_RPC_TIMEOUT, 2000). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(rabbit_running_on/1 :: (node()) -> 'ok'). --spec(notify_cluster/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -rabbit_running_on(Node) -> - gen_server:cast(rabbit_node_monitor, {rabbit_running_on, Node}). - -notify_cluster() -> - Node = node(), - Nodes = rabbit_mnesia:running_clustered_nodes() -- [Node], - %% notify other rabbits of this rabbit - case rpc:multicall(Nodes, rabbit_node_monitor, rabbit_running_on, - [Node], ?RABBIT_UP_RPC_TIMEOUT) of - {_, [] } -> ok; - {_, Bad} -> rabbit_log:info("failed to contact nodes ~p~n", [Bad]) - end, - %% register other active rabbits with this rabbit - [ rabbit_node_monitor:rabbit_running_on(N) || N <- Nodes ], - ok. - -%%-------------------------------------------------------------------- - -init([]) -> - ok = net_kernel:monitor_nodes(true), - {ok, no_state}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast({rabbit_running_on, Node}, State) -> - rabbit_log:info("node ~p up~n", [Node]), - erlang:monitor(process, {rabbit, Node}), - ok = rabbit_alarm:on_node_up(Node), - {noreply, State}; -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({nodedown, Node}, State) -> - rabbit_log:info("node ~p down~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info({'DOWN', _MRef, process, {rabbit, Node}, _Reason}, State) -> - rabbit_log:info("node ~p lost 'rabbit'~n", [Node]), - ok = handle_dead_rabbit(Node), - {noreply, State}; -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -%% TODO: This may turn out to be a performance hog when there are lots -%% of nodes. We really only need to execute some of these statements -%% on *one* node, rather than all of them. -handle_dead_rabbit(Node) -> - ok = rabbit_networking:on_node_down(Node), - ok = rabbit_amqqueue:on_node_down(Node), - ok = rabbit_alarm:on_node_down(Node). diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl deleted file mode 100644 index 92829e49..00000000 --- a/src/rabbit_prelaunch.erl +++ /dev/null @@ -1,286 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_prelaunch). - --export([start/0, stop/0]). - --define(BaseApps, [rabbit]). --define(ERROR_CODE, 1). - -%%---------------------------------------------------------------------------- -%% Specs -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - io:format("Activating RabbitMQ plugins ...~n"), - - %% Determine our various directories - [PluginDir, UnpackedPluginDir, NodeStr] = init:get_plain_arguments(), - RootName = UnpackedPluginDir ++ "/rabbit", - - %% Unpack any .ez plugins - unpack_ez_plugins(PluginDir, UnpackedPluginDir), - - %% Build a list of required apps based on the fixed set, and any plugins - PluginApps = find_plugins(PluginDir) ++ find_plugins(UnpackedPluginDir), - RequiredApps = ?BaseApps ++ PluginApps, - - %% Build the entire set of dependencies - this will load the - %% applications along the way - AllApps = case catch sets:to_list(expand_dependencies(RequiredApps)) of - {failed_to_load_app, App, Err} -> - terminate("failed to load application ~s:~n~p", - [App, Err]); - AppList -> - AppList - end, - AppVersions = [determine_version(App) || App <- AllApps], - RabbitVersion = proplists:get_value(rabbit, AppVersions), - - %% Build the overall release descriptor - RDesc = {release, - {"rabbit", RabbitVersion}, - {erts, erlang:system_info(version)}, - AppVersions}, - - %% Write it out to $RABBITMQ_PLUGINS_EXPAND_DIR/rabbit.rel - rabbit_misc:write_file(RootName ++ ".rel", io_lib:format("~p.~n", [RDesc])), - - %% We exclude mochiweb due to its optional use of fdsrv. - XRefExclude = [mochiweb], - - %% Compile the script - ScriptFile = RootName ++ ".script", - case systools:make_script(RootName, [local, silent, - {exref, AllApps -- XRefExclude}]) of - {ok, Module, Warnings} -> - %% This gets lots of spurious no-source warnings when we - %% have .ez files, so we want to supress them to prevent - %% hiding real issues. On Ubuntu, we also get warnings - %% about kernel/stdlib sources being out of date, which we - %% also ignore for the same reason. - WarningStr = Module:format_warning( - [W || W <- Warnings, - case W of - {warning, {source_not_found, _}} -> false; - {warning, {obj_out_of_date, {_,_,WApp,_,_}}} - when WApp == mnesia; - WApp == stdlib; - WApp == kernel; - WApp == sasl; - WApp == crypto; - WApp == os_mon -> false; - _ -> true - end]), - case length(WarningStr) of - 0 -> ok; - _ -> S = string:copies("*", 80), - io:format("~n~s~n~s~s~n~n", [S, WarningStr, S]) - end, - ok; - {error, Module, Error} -> - terminate("generation of boot script file ~s failed:~n~s", - [ScriptFile, Module:format_error(Error)]) - end, - - case post_process_script(ScriptFile) of - ok -> ok; - {error, Reason} -> - terminate("post processing of boot script file ~s failed:~n~w", - [ScriptFile, Reason]) - end, - case systools:script2boot(RootName) of - ok -> ok; - error -> terminate("failed to compile boot script file ~s", - [ScriptFile]) - end, - io:format("~w plugins activated:~n", [length(PluginApps)]), - [io:format("* ~s-~s~n", [App, proplists:get_value(App, AppVersions)]) - || App <- PluginApps], - io:nl(), - - ok = duplicate_node_check(NodeStr), - - terminate(0), - ok. - -stop() -> - ok. - -determine_version(App) -> - application:load(App), - {ok, Vsn} = application:get_key(App, vsn), - {App, Vsn}. - -delete_recursively(Fn) -> - case filelib:is_dir(Fn) and not(is_symlink(Fn)) of - true -> - case file:list_dir(Fn) of - {ok, Files} -> - case lists:foldl(fun ( Fn1, ok) -> delete_recursively( - Fn ++ "/" ++ Fn1); - (_Fn1, Err) -> Err - end, ok, Files) of - ok -> case file:del_dir(Fn) of - ok -> ok; - {error, E} -> {error, - {cannot_delete, Fn, E}} - end; - Err -> Err - end; - {error, E} -> - {error, {cannot_list_files, Fn, E}} - end; - false -> - case filelib:is_file(Fn) of - true -> case file:delete(Fn) of - ok -> ok; - {error, E} -> {error, {cannot_delete, Fn, E}} - end; - false -> ok - end - end. - -is_symlink(Name) -> - case file:read_link(Name) of - {ok, _} -> true; - _ -> false - end. - -unpack_ez_plugins(SrcDir, DestDir) -> - %% Eliminate the contents of the destination directory - case delete_recursively(DestDir) of - ok -> ok; - {error, E} -> terminate("Could not delete dir ~s (~p)", [DestDir, E]) - end, - case filelib:ensure_dir(DestDir ++ "/") of - ok -> ok; - {error, E2} -> terminate("Could not create dir ~s (~p)", [DestDir, E2]) - end, - [unpack_ez_plugin(PluginName, DestDir) || - PluginName <- filelib:wildcard(SrcDir ++ "/*.ez")]. - -unpack_ez_plugin(PluginFn, PluginDestDir) -> - zip:unzip(PluginFn, [{cwd, PluginDestDir}]), - ok. - -find_plugins(PluginDir) -> - [prepare_dir_plugin(PluginName) || - PluginName <- filelib:wildcard(PluginDir ++ "/*/ebin/*.app")]. - -prepare_dir_plugin(PluginAppDescFn) -> - %% Add the plugin ebin directory to the load path - PluginEBinDirN = filename:dirname(PluginAppDescFn), - code:add_path(PluginEBinDirN), - - %% We want the second-last token - NameTokens = string:tokens(PluginAppDescFn,"/."), - PluginNameString = lists:nth(length(NameTokens) - 1, NameTokens), - list_to_atom(PluginNameString). - -expand_dependencies(Pending) -> - expand_dependencies(sets:new(), Pending). -expand_dependencies(Current, []) -> - Current; -expand_dependencies(Current, [Next|Rest]) -> - case sets:is_element(Next, Current) of - true -> - expand_dependencies(Current, Rest); - false -> - case application:load(Next) of - ok -> - ok; - {error, {already_loaded, _}} -> - ok; - {error, Reason} -> - throw({failed_to_load_app, Next, Reason}) - end, - {ok, Required} = application:get_key(Next, applications), - Unique = [A || A <- Required, not(sets:is_element(A, Current))], - expand_dependencies(sets:add_element(Next, Current), Rest ++ Unique) - end. - -post_process_script(ScriptFile) -> - case file:consult(ScriptFile) of - {ok, [{script, Name, Entries}]} -> - NewEntries = lists:flatmap(fun process_entry/1, Entries), - case file:open(ScriptFile, [write]) of - {ok, Fd} -> - io:format(Fd, "%% script generated at ~w ~w~n~p.~n", - [date(), time(), {script, Name, NewEntries}]), - file:close(Fd), - ok; - {error, OReason} -> - {error, {failed_to_open_script_file_for_writing, OReason}} - end; - {error, Reason} -> - {error, {failed_to_load_script, Reason}} - end. - -process_entry(Entry = {apply,{application,start_boot,[mnesia,permanent]}}) -> - [{apply,{rabbit,prepare,[]}}, Entry]; -process_entry(Entry) -> - [Entry]. - -%% Check whether a node with the same name is already running -duplicate_node_check([]) -> - %% Ignore running node while installing windows service - ok; -duplicate_node_check(NodeStr) -> - Node = rabbit_misc:makenode(NodeStr), - {NodeName, NodeHost} = rabbit_misc:nodeparts(Node), - case net_adm:names(NodeHost) of - {ok, NamePorts} -> - case proplists:is_defined(NodeName, NamePorts) of - true -> io:format("node with name ~p " - "already running on ~p~n", - [NodeName, NodeHost]), - [io:format(Fmt ++ "~n", Args) || - {Fmt, Args} <- rabbit_control:diagnostics(Node)], - terminate(?ERROR_CODE); - false -> ok - end; - {error, EpmdReason} -> - terminate("epmd error for host ~p: ~p (~s)~n", - [NodeHost, EpmdReason, - case EpmdReason of - address -> "unable to establish tcp connection"; - _ -> inet:format_error(EpmdReason) - end]) - end. - -terminate(Fmt, Args) -> - io:format("ERROR: " ++ Fmt ++ "~n", Args), - terminate(?ERROR_CODE). - -terminate(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status), - receive - after infinity -> ok - end - end. diff --git a/src/rabbit_queue_collector.erl b/src/rabbit_queue_collector.erl deleted file mode 100644 index 9b45e798..00000000 --- a/src/rabbit_queue_collector.erl +++ /dev/null @@ -1,92 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_collector). - --behaviour(gen_server). - --export([start_link/0, register/2, delete_all/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {queues, delete_from}). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/2 :: (pid(), rabbit_types:amqqueue()) -> 'ok'). --spec(delete_all/1 :: (pid()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link(?MODULE, [], []). - -register(CollectorPid, Q) -> - gen_server:call(CollectorPid, {register, Q}, infinity). - -delete_all(CollectorPid) -> - gen_server:call(CollectorPid, delete_all, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state{queues = dict:new(), delete_from = undefined}}. - -%%-------------------------------------------------------------------------- - -handle_call({register, Q}, _From, - State = #state{queues = Queues, delete_from = Deleting}) -> - MonitorRef = erlang:monitor(process, Q#amqqueue.pid), - case Deleting of - undefined -> ok; - _ -> rabbit_amqqueue:delete_immediately(Q) - end, - {reply, ok, State#state{queues = dict:store(MonitorRef, Q, Queues)}}; - -handle_call(delete_all, From, State = #state{queues = Queues, - delete_from = undefined}) -> - case dict:size(Queues) of - 0 -> {reply, ok, State#state{delete_from = From}}; - _ -> [rabbit_amqqueue:delete_immediately(Q) - || {_MRef, Q} <- dict:to_list(Queues)], - {noreply, State#state{delete_from = From}} - end. - -handle_cast(Msg, State) -> - {stop, {unhandled_cast, Msg}, State}. - -handle_info({'DOWN', MonitorRef, process, _DownPid, _Reason}, - State = #state{queues = Queues, delete_from = Deleting}) -> - Queues1 = dict:erase(MonitorRef, Queues), - case Deleting =/= undefined andalso dict:size(Queues1) =:= 0 of - true -> gen_server:reply(Deleting, ok); - false -> ok - end, - {noreply, State#state{queues = Queues1}}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl deleted file mode 100644 index bf89cdb2..00000000 --- a/src/rabbit_queue_index.erl +++ /dev/null @@ -1,1070 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_queue_index). - --export([init/2, shutdown_terms/1, recover/5, - terminate/2, delete_and_terminate/1, - publish/5, deliver/2, ack/2, sync/1, sync/2, flush/1, read/3, - next_segment_boundary/1, bounds/1, recover/1]). - --export([add_queue_ttl/0]). - --define(CLEAN_FILENAME, "clean.dot"). - -%%---------------------------------------------------------------------------- - -%% The queue index is responsible for recording the order of messages -%% within a queue on disk. -%% -%% Because of the fact that the queue can decide at any point to send -%% a queue entry to disk, you can not rely on publishes appearing in -%% order. The only thing you can rely on is a message being published, -%% then delivered, then ack'd. -%% -%% In order to be able to clean up ack'd messages, we write to segment -%% files. These files have a fixed maximum size: ?SEGMENT_ENTRY_COUNT -%% publishes, delivers and acknowledgements. They are numbered, and so -%% it is known that the 0th segment contains messages 0 -> -%% ?SEGMENT_ENTRY_COUNT - 1, the 1st segment contains messages -%% ?SEGMENT_ENTRY_COUNT -> 2*?SEGMENT_ENTRY_COUNT - 1 and so on. As -%% such, in the segment files, we only refer to message sequence ids -%% by the LSBs as SeqId rem ?SEGMENT_ENTRY_COUNT. This gives them a -%% fixed size. -%% -%% However, transient messages which are not sent to disk at any point -%% will cause gaps to appear in segment files. Therefore, we delete a -%% segment file whenever the number of publishes == number of acks -%% (note that although it is not fully enforced, it is assumed that a -%% message will never be ackd before it is delivered, thus this test -%% also implies == number of delivers). In practise, this does not -%% cause disk churn in the pathological case because of the journal -%% and caching (see below). -%% -%% Because of the fact that publishes, delivers and acks can occur all -%% over, we wish to avoid lots of seeking. Therefore we have a fixed -%% sized journal to which all actions are appended. When the number of -%% entries in this journal reaches max_journal_entries, the journal -%% entries are scattered out to their relevant files, and the journal -%% is truncated to zero size. Note that entries in the journal must -%% carry the full sequence id, thus the format of entries in the -%% journal is different to that in the segments. -%% -%% The journal is also kept fully in memory, pre-segmented: the state -%% contains a mapping from segment numbers to state-per-segment (this -%% state is held for all segments which have been "seen": thus a -%% segment which has been read but has no pending entries in the -%% journal is still held in this mapping. Also note that a dict is -%% used for this mapping, not an array because with an array, you will -%% always have entries from 0). Actions are stored directly in this -%% state. Thus at the point of flushing the journal, firstly no -%% reading from disk is necessary, but secondly if the known number of -%% acks and publishes in a segment are equal, given the known state of -%% the segment file combined with the journal, no writing needs to be -%% done to the segment file either (in fact it is deleted if it exists -%% at all). This is safe given that the set of acks is a subset of the -%% set of publishes. When it is necessary to sync messages, it is -%% sufficient to fsync on the journal: when entries are distributed -%% from the journal to segment files, those segments appended to are -%% fsync'd prior to the journal being truncated. -%% -%% This module is also responsible for scanning the queue index files -%% and seeding the message store on start up. -%% -%% Note that in general, the representation of a message's state as -%% the tuple: {('no_pub'|{MsgId, MsgProps, IsPersistent}), -%% ('del'|'no_del'), ('ack'|'no_ack')} is richer than strictly -%% necessary for most operations. However, for startup, and to ensure -%% the safe and correct combination of journal entries with entries -%% read from the segment on disk, this richer representation vastly -%% simplifies and clarifies the code. -%% -%% For notes on Clean Shutdown and startup, see documentation in -%% variable_queue. -%% -%%---------------------------------------------------------------------------- - -%% ---- Journal details ---- - --define(JOURNAL_FILENAME, "journal.jif"). - --define(PUB_PERSIST_JPREFIX, 2#00). --define(PUB_TRANS_JPREFIX, 2#01). --define(DEL_JPREFIX, 2#10). --define(ACK_JPREFIX, 2#11). --define(JPREFIX_BITS, 2). --define(SEQ_BYTES, 8). --define(SEQ_BITS, ((?SEQ_BYTES * 8) - ?JPREFIX_BITS)). - -%% ---- Segment details ---- - --define(SEGMENT_EXTENSION, ".idx"). - -%% TODO: The segment size would be configurable, but deriving all the -%% other values is quite hairy and quite possibly noticably less -%% efficient, depending on how clever the compiler is when it comes to -%% binary generation/matching with constant vs variable lengths. - --define(REL_SEQ_BITS, 14). --define(SEGMENT_ENTRY_COUNT, 16384). %% trunc(math:pow(2,?REL_SEQ_BITS))). - -%% seq only is binary 00 followed by 14 bits of rel seq id -%% (range: 0 - 16383) --define(REL_SEQ_ONLY_PREFIX, 00). --define(REL_SEQ_ONLY_PREFIX_BITS, 2). --define(REL_SEQ_ONLY_RECORD_BYTES, 2). - -%% publish record is binary 1 followed by a bit for is_persistent, -%% then 14 bits of rel seq id, 64 bits for message expiry and 128 bits -%% of md5sum msg id --define(PUB_PREFIX, 1). --define(PUB_PREFIX_BITS, 1). - --define(EXPIRY_BYTES, 8). --define(EXPIRY_BITS, (?EXPIRY_BYTES * 8)). --define(NO_EXPIRY, 0). - --define(MSG_ID_BYTES, 16). %% md5sum is 128 bit or 16 bytes --define(MSG_ID_BITS, (?MSG_ID_BYTES * 8)). - -%% 16 bytes for md5sum + 8 for expiry --define(PUB_RECORD_BODY_BYTES, (?MSG_ID_BYTES + ?EXPIRY_BYTES)). -%% + 2 for seq, bits and prefix --define(PUB_RECORD_BYTES, (?PUB_RECORD_BODY_BYTES + 2)). - -%% 1 publish, 1 deliver, 1 ack per msg --define(SEGMENT_TOTAL_SIZE, ?SEGMENT_ENTRY_COUNT * - (?PUB_RECORD_BYTES + (2 * ?REL_SEQ_ONLY_RECORD_BYTES))). - -%% ---- misc ---- - --define(PUB, {_, _, _}). %% {MsgId, MsgProps, IsPersistent} - --define(READ_MODE, [binary, raw, read]). --define(READ_AHEAD_MODE, [{read_ahead, ?SEGMENT_TOTAL_SIZE} | ?READ_MODE]). --define(WRITE_MODE, [write | ?READ_MODE]). - -%%---------------------------------------------------------------------------- - --record(qistate, { dir, segments, journal_handle, dirty_count, - max_journal_entries, on_sync, unsynced_msg_ids }). - --record(segment, { num, path, journal_entries, unacked }). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({add_queue_ttl, local, []}). - --ifdef(use_specs). - --type(hdl() :: ('undefined' | any())). --type(segment() :: ('undefined' | - #segment { num :: non_neg_integer(), - path :: file:filename(), - journal_entries :: array(), - unacked :: non_neg_integer() - })). --type(seq_id() :: integer()). --type(seg_dict() :: {dict(), [segment()]}). --type(on_sync_fun() :: fun ((gb_set()) -> ok)). --type(qistate() :: #qistate { dir :: file:filename(), - segments :: 'undefined' | seg_dict(), - journal_handle :: hdl(), - dirty_count :: integer(), - max_journal_entries :: non_neg_integer(), - on_sync :: on_sync_fun(), - unsynced_msg_ids :: [rabbit_types:msg_id()] - }). --type(contains_predicate() :: fun ((rabbit_types:msg_id()) -> boolean())). --type(walker(A) :: fun ((A) -> 'finished' | - {rabbit_types:msg_id(), non_neg_integer(), A})). --type(shutdown_terms() :: [any()]). - --spec(init/2 :: (rabbit_amqqueue:name(), on_sync_fun()) -> qistate()). --spec(shutdown_terms/1 :: (rabbit_amqqueue:name()) -> shutdown_terms()). --spec(recover/5 :: (rabbit_amqqueue:name(), shutdown_terms(), boolean(), - contains_predicate(), on_sync_fun()) -> - {'undefined' | non_neg_integer(), qistate()}). --spec(terminate/2 :: ([any()], qistate()) -> qistate()). --spec(delete_and_terminate/1 :: (qistate()) -> qistate()). --spec(publish/5 :: (rabbit_types:msg_id(), seq_id(), - rabbit_types:message_properties(), boolean(), qistate()) - -> qistate()). --spec(deliver/2 :: ([seq_id()], qistate()) -> qistate()). --spec(ack/2 :: ([seq_id()], qistate()) -> qistate()). --spec(sync/2 :: ([seq_id()], qistate()) -> qistate()). --spec(flush/1 :: (qistate()) -> qistate()). --spec(read/3 :: (seq_id(), seq_id(), qistate()) -> - {[{rabbit_types:msg_id(), seq_id(), - rabbit_types:message_properties(), - boolean(), boolean()}], qistate()}). --spec(next_segment_boundary/1 :: (seq_id()) -> seq_id()). --spec(bounds/1 :: (qistate()) -> - {non_neg_integer(), non_neg_integer(), qistate()}). --spec(recover/1 :: ([rabbit_amqqueue:name()]) -> {[[any()]], {walker(A), A}}). - --spec(add_queue_ttl/0 :: () -> 'ok'). - --endif. - - -%%---------------------------------------------------------------------------- -%% public API -%%---------------------------------------------------------------------------- - -init(Name, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - false = filelib:is_file(Dir), %% is_file == is file or dir - State #qistate { on_sync = OnSyncFun }. - -shutdown_terms(Name) -> - #qistate { dir = Dir } = blank_state(Name), - case read_shutdown_terms(Dir) of - {error, _} -> []; - {ok, Terms1} -> Terms1 - end. - -recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), - State1 = State #qistate { on_sync = OnSyncFun }, - CleanShutdown = detect_clean_shutdown(Dir), - case CleanShutdown andalso MsgStoreRecovered of - true -> RecoveredCounts = proplists:get_value(segments, Terms, []), - init_clean(RecoveredCounts, State1); - false -> init_dirty(CleanShutdown, ContainsCheckFun, State1) - end. - -terminate(Terms, State) -> - {SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - store_clean_shutdown([{segments, SegmentCounts} | Terms], Dir), - State1. - -delete_and_terminate(State) -> - {_SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - ok = rabbit_misc:recursive_delete([Dir]), - State1. - -publish(MsgId, SeqId, MsgProps, IsPersistent, - State = #qistate { unsynced_msg_ids = UnsyncedMsgIds }) - when is_binary(MsgId) -> - ?MSG_ID_BYTES = size(MsgId), - {JournalHdl, State1} = get_journal_handle( - State #qistate { - unsynced_msg_ids = [MsgId | UnsyncedMsgIds] }), - ok = file_handle_cache:append( - JournalHdl, [<<(case IsPersistent of - true -> ?PUB_PERSIST_JPREFIX; - false -> ?PUB_TRANS_JPREFIX - end):?JPREFIX_BITS, - SeqId:?SEQ_BITS>>, - create_pub_record_body(MsgId, MsgProps)]), - maybe_flush_journal( - add_to_journal(SeqId, {MsgId, MsgProps, IsPersistent}, State1)). - -deliver(SeqIds, State) -> - deliver_or_ack(del, SeqIds, State). - -ack(SeqIds, State) -> - deliver_or_ack(ack, SeqIds, State). - -%% This is only called when there are outstanding confirms and the -%% queue is idle. -sync(State = #qistate { unsynced_msg_ids = MsgIds }) -> - sync_if([] =/= MsgIds, State). - -sync(SeqIds, State) -> - %% The SeqIds here contains the SeqId of every publish and ack to - %% be sync'ed. Ideally we should go through these seqids and only - %% sync the journal if the pubs or acks appear in the - %% journal. However, this would be complex to do, and given that - %% the variable queue publishes and acks to the qi, and then - %% syncs, all in one operation, there is no possibility of the - %% seqids not being in the journal. - sync_if([] =/= SeqIds, State). - -flush(State = #qistate { dirty_count = 0 }) -> State; -flush(State) -> flush_journal(State). - -read(StartEnd, StartEnd, State) -> - {[], State}; -read(Start, End, State = #qistate { segments = Segments, - dir = Dir }) when Start =< End -> - %% Start is inclusive, End is exclusive. - LowerB = {StartSeg, _StartRelSeq} = seq_id_to_seg_and_rel_seq_id(Start), - UpperB = {EndSeg, _EndRelSeq} = seq_id_to_seg_and_rel_seq_id(End - 1), - {Messages, Segments1} = - lists:foldr(fun (Seg, Acc) -> - read_bounded_segment(Seg, LowerB, UpperB, Acc, Dir) - end, {[], Segments}, lists:seq(StartSeg, EndSeg)), - {Messages, State #qistate { segments = Segments1 }}. - -next_segment_boundary(SeqId) -> - {Seg, _RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - reconstruct_seq_id(Seg + 1, 0). - -bounds(State = #qistate { segments = Segments }) -> - %% This is not particularly efficient, but only gets invoked on - %% queue initialisation. - SegNums = lists:sort(segment_nums(Segments)), - %% Don't bother trying to figure out the lowest seq_id, merely the - %% seq_id of the start of the lowest segment. That seq_id may not - %% actually exist, but that's fine. The important thing is that - %% the segment exists and the seq_id reported is on a segment - %% boundary. - %% - %% We also don't really care about the max seq_id. Just start the - %% next segment: it makes life much easier. - %% - %% SegNums is sorted, ascending. - {LowSeqId, NextSeqId} = - case SegNums of - [] -> {0, 0}; - [MinSeg|_] -> {reconstruct_seq_id(MinSeg, 0), - reconstruct_seq_id(1 + lists:last(SegNums), 0)} - end, - {LowSeqId, NextSeqId, State}. - -recover(DurableQueues) -> - DurableDict = dict:from_list([ {queue_name_to_dir_name(Queue), Queue} || - Queue <- DurableQueues ]), - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), - {DurableQueueNames, DurableTerms} = - lists:foldl( - fun (QueueDirName, {DurableAcc, TermsAcc}) -> - QueueDirPath = filename:join(QueuesDir, QueueDirName), - case sets:is_element(QueueDirName, DurableDirectories) of - true -> - TermsAcc1 = - case read_shutdown_terms(QueueDirPath) of - {error, _} -> TermsAcc; - {ok, Terms} -> [Terms | TermsAcc] - end, - {[dict:fetch(QueueDirName, DurableDict) | DurableAcc], - TermsAcc1}; - false -> - ok = rabbit_misc:recursive_delete([QueueDirPath]), - {DurableAcc, TermsAcc} - end - end, {[], []}, QueueDirNames), - {DurableTerms, {fun queue_index_walker/1, {start, DurableQueueNames}}}. - -all_queue_directory_names(Dir) -> - case file:list_dir(Dir) of - {ok, Entries} -> [ Entry || Entry <- Entries, - filelib:is_dir( - filename:join(Dir, Entry)) ]; - {error, enoent} -> [] - end. - -%%---------------------------------------------------------------------------- -%% startup and shutdown -%%---------------------------------------------------------------------------- - -blank_state(QueueName) -> - Dir = filename:join(queues_dir(), queue_name_to_dir_name(QueueName)), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - #qistate { dir = Dir, - segments = segments_new(), - journal_handle = undefined, - dirty_count = 0, - max_journal_entries = MaxJournal, - on_sync = fun (_) -> ok end, - unsynced_msg_ids = [] }. - -clean_file_name(Dir) -> filename:join(Dir, ?CLEAN_FILENAME). - -detect_clean_shutdown(Dir) -> - case file:delete(clean_file_name(Dir)) of - ok -> true; - {error, enoent} -> false - end. - -read_shutdown_terms(Dir) -> - rabbit_misc:read_term_file(clean_file_name(Dir)). - -store_clean_shutdown(Terms, Dir) -> - CleanFileName = clean_file_name(Dir), - ok = filelib:ensure_dir(CleanFileName), - rabbit_misc:write_term_file(CleanFileName, Terms). - -init_clean(RecoveredCounts, State) -> - %% Load the journal. Since this is a clean recovery this (almost) - %% gets us back to where we were on shutdown. - State1 = #qistate { dir = Dir, segments = Segments } = load_journal(State), - %% The journal loading only creates records for segments touched - %% by the journal, and the counts are based on the journal entries - %% only. We need *complete* counts for *all* segments. By an - %% amazing coincidence we stored that information on shutdown. - Segments1 = - lists:foldl( - fun ({Seg, UnackedCount}, SegmentsN) -> - Segment = segment_find_or_new(Seg, Dir, SegmentsN), - segment_store(Segment #segment { unacked = UnackedCount }, - SegmentsN) - end, Segments, RecoveredCounts), - %% the counts above include transient messages, which would be the - %% wrong thing to return - {undefined, State1 # qistate { segments = Segments1 }}. - -init_dirty(CleanShutdown, ContainsCheckFun, State) -> - %% Recover the journal completely. This will also load segments - %% which have entries in the journal and remove duplicates. The - %% counts will correctly reflect the combination of the segment - %% and the journal. - State1 = #qistate { dir = Dir, segments = Segments } = - recover_journal(State), - {Segments1, Count} = - %% Load each segment in turn and filter out messages that are - %% not in the msg_store, by adding acks to the journal. These - %% acks only go to the RAM journal as it doesn't matter if we - %% lose them. Also mark delivered if not clean shutdown. Also - %% find the number of unacked messages. - lists:foldl( - fun (Seg, {Segments2, CountAcc}) -> - Segment = #segment { unacked = UnackedCount } = - recover_segment(ContainsCheckFun, CleanShutdown, - segment_find_or_new(Seg, Dir, Segments2)), - {segment_store(Segment, Segments2), CountAcc + UnackedCount} - end, {Segments, 0}, all_segment_nums(State1)), - %% Unconditionally flush since the dirty_count doesn't get updated - %% by the above foldl. - State2 = flush_journal(State1 #qistate { segments = Segments1 }), - {Count, State2}. - -terminate(State = #qistate { journal_handle = JournalHdl, - segments = Segments }) -> - ok = case JournalHdl of - undefined -> ok; - _ -> file_handle_cache:close(JournalHdl) - end, - SegmentCounts = - segment_fold( - fun (#segment { num = Seg, unacked = UnackedCount }, Acc) -> - [{Seg, UnackedCount} | Acc] - end, [], Segments), - {SegmentCounts, State #qistate { journal_handle = undefined, - segments = undefined }}. - -recover_segment(ContainsCheckFun, CleanShutdown, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, UnackedCount} = load_segment(false, Segment), - {SegEntries1, UnackedCountDelta} = - segment_plus_journal(SegEntries, JEntries), - array:sparse_foldl( - fun (RelSeq, {{MsgId, _MsgProps, _IsPersistent}, Del, no_ack}, - Segment1) -> - recover_message(ContainsCheckFun(MsgId), CleanShutdown, - Del, RelSeq, Segment1) - end, - Segment #segment { unacked = UnackedCount + UnackedCountDelta }, - SegEntries1). - -recover_message( true, true, _Del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, del, _RelSeq, Segment) -> - Segment; -recover_message( true, false, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, del, Segment); -recover_message(false, _, del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, Segment); -recover_message(false, _, no_del, RelSeq, Segment) -> - add_to_journal(RelSeq, ack, add_to_journal(RelSeq, del, Segment)). - -queue_name_to_dir_name(Name = #resource { kind = queue }) -> - <> = erlang:md5(term_to_binary(Name)), - lists:flatten(io_lib:format("~.36B", [Num])). - -queues_dir() -> - filename:join(rabbit_mnesia:dir(), "queues"). - -%%---------------------------------------------------------------------------- -%% msg store startup delta function -%%---------------------------------------------------------------------------- - -queue_index_walker({start, DurableQueues}) when is_list(DurableQueues) -> - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> queue_index_walker_reader(QueueName, Gatherer) - end) - end || QueueName <- DurableQueues], - queue_index_walker({next, Gatherer}); - -queue_index_walker({next, Gatherer}) when is_pid(Gatherer) -> - case gatherer:out(Gatherer) of - empty -> - unlink(Gatherer), - ok = gatherer:stop(Gatherer), - finished; - {value, {MsgId, Count}} -> - {MsgId, Count, {next, Gatherer}} - end. - -queue_index_walker_reader(QueueName, Gatherer) -> - State = #qistate { segments = Segments, dir = Dir } = - recover_journal(blank_state(QueueName)), - [ok = segment_entries_foldr( - fun (_RelSeq, {{MsgId, _MsgProps, true}, _IsDelivered, no_ack}, - ok) -> - gatherer:in(Gatherer, {MsgId, 1}); - (_RelSeq, _Value, Acc) -> - Acc - end, ok, segment_find_or_new(Seg, Dir, Segments)) || - Seg <- all_segment_nums(State)], - {_SegmentCounts, _State} = terminate(State), - ok = gatherer:finish(Gatherer). - -%%---------------------------------------------------------------------------- -%% expiry/binary manipulation -%%---------------------------------------------------------------------------- - -create_pub_record_body(MsgId, #message_properties { expiry = Expiry }) -> - [MsgId, expiry_to_binary(Expiry)]. - -expiry_to_binary(undefined) -> <>; -expiry_to_binary(Expiry) -> <>. - -parse_pub_record_body(<>) -> - %% work around for binary data fragmentation. See - %% rabbit_msg_file:read_next/2 - <> = <>, - Exp = case Expiry of - ?NO_EXPIRY -> undefined; - X -> X - end, - {MsgId, #message_properties { expiry = Exp }}. - -%%---------------------------------------------------------------------------- -%% journal manipulation -%%---------------------------------------------------------------------------- - -add_to_journal(SeqId, Action, State = #qistate { dirty_count = DCount, - segments = Segments, - dir = Dir }) -> - {Seg, RelSeq} = seq_id_to_seg_and_rel_seq_id(SeqId), - Segment = segment_find_or_new(Seg, Dir, Segments), - Segment1 = add_to_journal(RelSeq, Action, Segment), - State #qistate { dirty_count = DCount + 1, - segments = segment_store(Segment1, Segments) }; - -add_to_journal(RelSeq, Action, - Segment = #segment { journal_entries = JEntries, - unacked = UnackedCount }) -> - Segment1 = Segment #segment { - journal_entries = add_to_journal(RelSeq, Action, JEntries) }, - case Action of - del -> Segment1; - ack -> Segment1 #segment { unacked = UnackedCount - 1 }; - ?PUB -> Segment1 #segment { unacked = UnackedCount + 1 } - end; - -add_to_journal(RelSeq, Action, JEntries) -> - Val = case array:get(RelSeq, JEntries) of - undefined -> - case Action of - ?PUB -> {Action, no_del, no_ack}; - del -> {no_pub, del, no_ack}; - ack -> {no_pub, no_del, ack} - end; - ({Pub, no_del, no_ack}) when Action == del -> - {Pub, del, no_ack}; - ({Pub, Del, no_ack}) when Action == ack -> - {Pub, Del, ack} - end, - array:set(RelSeq, Val, JEntries). - -maybe_flush_journal(State = #qistate { dirty_count = DCount, - max_journal_entries = MaxJournal }) - when DCount > MaxJournal -> - flush_journal(State); -maybe_flush_journal(State) -> - State. - -flush_journal(State = #qistate { segments = Segments }) -> - Segments1 = - segment_fold( - fun (#segment { unacked = 0, path = Path }, SegmentsN) -> - case filelib:is_file(Path) of - true -> ok = file:delete(Path); - false -> ok - end, - SegmentsN; - (#segment {} = Segment, SegmentsN) -> - segment_store(append_journal_to_segment(Segment), SegmentsN) - end, segments_new(), Segments), - {JournalHdl, State1} = - get_journal_handle(State #qistate { segments = Segments1 }), - ok = file_handle_cache:clear(JournalHdl), - notify_sync(State1 #qistate { dirty_count = 0 }). - -append_journal_to_segment(#segment { journal_entries = JEntries, - path = Path } = Segment) -> - case array:sparse_size(JEntries) of - 0 -> Segment; - _ -> {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - array:sparse_foldl(fun write_entry_to_segment/3, Hdl, JEntries), - ok = file_handle_cache:close(Hdl), - Segment #segment { journal_entries = array_new() } - end. - -get_journal_handle(State = #qistate { journal_handle = undefined, - dir = Dir }) -> - Path = filename:join(Dir, ?JOURNAL_FILENAME), - ok = filelib:ensure_dir(Path), - {ok, Hdl} = file_handle_cache:open(Path, ?WRITE_MODE, - [{write_buffer, infinity}]), - {Hdl, State #qistate { journal_handle = Hdl }}; -get_journal_handle(State = #qistate { journal_handle = Hdl }) -> - {Hdl, State}. - -%% Loading Journal. This isn't idempotent and will mess up the counts -%% if you call it more than once on the same state. Assumes the counts -%% are 0 to start with. -load_journal(State) -> - {JournalHdl, State1} = get_journal_handle(State), - {ok, 0} = file_handle_cache:position(JournalHdl, 0), - load_journal_entries(State1). - -%% ditto -recover_journal(State) -> - State1 = #qistate { segments = Segments } = load_journal(State), - Segments1 = - segment_map( - fun (Segment = #segment { journal_entries = JEntries, - unacked = UnackedCountInJournal }) -> - %% We want to keep ack'd entries in so that we can - %% remove them if duplicates are in the journal. The - %% counts here are purely from the segment itself. - {SegEntries, UnackedCountInSeg} = load_segment(true, Segment), - {JEntries1, UnackedCountDuplicates} = - journal_minus_segment(JEntries, SegEntries), - Segment #segment { journal_entries = JEntries1, - unacked = (UnackedCountInJournal + - UnackedCountInSeg - - UnackedCountDuplicates) } - end, Segments), - State1 #qistate { segments = Segments1 }. - -load_journal_entries(State = #qistate { journal_handle = Hdl }) -> - case file_handle_cache:read(Hdl, ?SEQ_BYTES) of - {ok, <>} -> - case Prefix of - ?DEL_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, del, State)); - ?ACK_JPREFIX -> - load_journal_entries(add_to_journal(SeqId, ack, State)); - _ -> - case file_handle_cache:read(Hdl, ?PUB_RECORD_BODY_BYTES) of - {ok, Bin} -> - {MsgId, MsgProps} = parse_pub_record_body(Bin), - IsPersistent = case Prefix of - ?PUB_PERSIST_JPREFIX -> true; - ?PUB_TRANS_JPREFIX -> false - end, - load_journal_entries( - add_to_journal( - SeqId, {MsgId, MsgProps, IsPersistent}, State)); - _ErrOrEoF -> %% err, we've lost at least a publish - State - end - end; - _ErrOrEoF -> State - end. - -deliver_or_ack(_Kind, [], State) -> - State; -deliver_or_ack(Kind, SeqIds, State) -> - JPrefix = case Kind of ack -> ?ACK_JPREFIX; del -> ?DEL_JPREFIX end, - {JournalHdl, State1} = get_journal_handle(State), - ok = file_handle_cache:append( - JournalHdl, - [<> || SeqId <- SeqIds]), - maybe_flush_journal(lists:foldl(fun (SeqId, StateN) -> - add_to_journal(SeqId, Kind, StateN) - end, State1, SeqIds)). - -sync_if(false, State) -> - State; -sync_if(_Bool, State = #qistate { journal_handle = undefined }) -> - State; -sync_if(true, State = #qistate { journal_handle = JournalHdl }) -> - ok = file_handle_cache:sync(JournalHdl), - notify_sync(State). - -notify_sync(State = #qistate { unsynced_msg_ids = UG, on_sync = OnSyncFun }) -> - OnSyncFun(gb_sets:from_list(UG)), - State #qistate { unsynced_msg_ids = [] }. - -%%---------------------------------------------------------------------------- -%% segment manipulation -%%---------------------------------------------------------------------------- - -seq_id_to_seg_and_rel_seq_id(SeqId) -> - { SeqId div ?SEGMENT_ENTRY_COUNT, SeqId rem ?SEGMENT_ENTRY_COUNT }. - -reconstruct_seq_id(Seg, RelSeq) -> - (Seg * ?SEGMENT_ENTRY_COUNT) + RelSeq. - -all_segment_nums(#qistate { dir = Dir, segments = Segments }) -> - lists:sort( - sets:to_list( - lists:foldl( - fun (SegName, Set) -> - sets:add_element( - list_to_integer( - lists:takewhile(fun (C) -> $0 =< C andalso C =< $9 end, - SegName)), Set) - end, sets:from_list(segment_nums(Segments)), - filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)))). - -segment_find_or_new(Seg, Dir, Segments) -> - case segment_find(Seg, Segments) of - {ok, Segment} -> Segment; - error -> SegName = integer_to_list(Seg) ++ ?SEGMENT_EXTENSION, - Path = filename:join(Dir, SegName), - #segment { num = Seg, - path = Path, - journal_entries = array_new(), - unacked = 0 } - end. - -segment_find(Seg, {_Segments, [Segment = #segment { num = Seg } |_]}) -> - {ok, Segment}; %% 1 or (2, matches head) -segment_find(Seg, {_Segments, [_, Segment = #segment { num = Seg }]}) -> - {ok, Segment}; %% 2, matches tail -segment_find(Seg, {Segments, _}) -> %% no match - dict:find(Seg, Segments). - -segment_store(Segment = #segment { num = Seg }, %% 1 or (2, matches head) - {Segments, [#segment { num = Seg } | Tail]}) -> - {Segments, [Segment | Tail]}; -segment_store(Segment = #segment { num = Seg }, %% 2, matches tail - {Segments, [SegmentA, #segment { num = Seg }]}) -> - {Segments, [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, {Segments, []}) -> - {dict:erase(Seg, Segments), [Segment]}; -segment_store(Segment = #segment { num = Seg }, {Segments, [SegmentA]}) -> - {dict:erase(Seg, Segments), [Segment, SegmentA]}; -segment_store(Segment = #segment { num = Seg }, - {Segments, [SegmentA, SegmentB]}) -> - {dict:store(SegmentB#segment.num, SegmentB, dict:erase(Seg, Segments)), - [Segment, SegmentA]}. - -segment_fold(Fun, Acc, {Segments, CachedSegments}) -> - dict:fold(fun (_Seg, Segment, Acc1) -> Fun(Segment, Acc1) end, - lists:foldl(Fun, Acc, CachedSegments), Segments). - -segment_map(Fun, {Segments, CachedSegments}) -> - {dict:map(fun (_Seg, Segment) -> Fun(Segment) end, Segments), - lists:map(Fun, CachedSegments)}. - -segment_nums({Segments, CachedSegments}) -> - lists:map(fun (#segment { num = Num }) -> Num end, CachedSegments) ++ - dict:fetch_keys(Segments). - -segments_new() -> - {dict:new(), []}. - -write_entry_to_segment(_RelSeq, {?PUB, del, ack}, Hdl) -> - Hdl; -write_entry_to_segment(RelSeq, {Pub, Del, Ack}, Hdl) -> - ok = case Pub of - no_pub -> - ok; - {MsgId, MsgProps, IsPersistent} -> - file_handle_cache:append( - Hdl, [<>, - create_pub_record_body(MsgId, MsgProps)]) - end, - ok = case {Del, Ack} of - {no_del, no_ack} -> - ok; - _ -> - Binary = <>, - file_handle_cache:append( - Hdl, case {Del, Ack} of - {del, ack} -> [Binary, Binary]; - _ -> Binary - end) - end, - Hdl. - -read_bounded_segment(Seg, {StartSeg, StartRelSeq}, {EndSeg, EndRelSeq}, - {Messages, Segments}, Dir) -> - Segment = segment_find_or_new(Seg, Dir, Segments), - {segment_entries_foldr( - fun (RelSeq, {{MsgId, MsgProps, IsPersistent}, IsDelivered, no_ack}, Acc) - when (Seg > StartSeg orelse StartRelSeq =< RelSeq) andalso - (Seg < EndSeg orelse EndRelSeq >= RelSeq) -> - [ {MsgId, reconstruct_seq_id(StartSeg, RelSeq), MsgProps, - IsPersistent, IsDelivered == del} | Acc ]; - (_RelSeq, _Value, Acc) -> - Acc - end, Messages, Segment), - segment_store(Segment, Segments)}. - -segment_entries_foldr(Fun, Init, - Segment = #segment { journal_entries = JEntries }) -> - {SegEntries, _UnackedCount} = load_segment(false, Segment), - {SegEntries1, _UnackedCountD} = segment_plus_journal(SegEntries, JEntries), - array:sparse_foldr(Fun, Init, SegEntries1). - -%% Loading segments -%% -%% Does not do any combining with the journal at all. -load_segment(KeepAcked, #segment { path = Path }) -> - case filelib:is_file(Path) of - false -> {array_new(), 0}; - true -> {ok, Hdl} = file_handle_cache:open(Path, ?READ_AHEAD_MODE, []), - {ok, 0} = file_handle_cache:position(Hdl, bof), - {ok, SegData} = file_handle_cache:read( - Hdl, ?SEGMENT_TOTAL_SIZE), - Res = load_segment_entries(KeepAcked, SegData, array_new(), 0), - ok = file_handle_cache:close(Hdl), - Res - end. - -load_segment_entries(KeepAcked, - <>, - SegEntries, UnackedCount) -> - {MsgId, MsgProps} = parse_pub_record_body(PubRecordBody), - Obj = {{MsgId, MsgProps, 1 == IsPersistentNum}, no_del, no_ack}, - SegEntries1 = array:set(RelSeq, Obj, SegEntries), - load_segment_entries(KeepAcked, SegData, SegEntries1, UnackedCount + 1); -load_segment_entries(KeepAcked, - <>, - SegEntries, UnackedCount) -> - {UnackedCountDelta, SegEntries1} = - case array:get(RelSeq, SegEntries) of - {Pub, no_del, no_ack} -> - { 0, array:set(RelSeq, {Pub, del, no_ack}, SegEntries)}; - {Pub, del, no_ack} when KeepAcked -> - {-1, array:set(RelSeq, {Pub, del, ack}, SegEntries)}; - {_Pub, del, no_ack} -> - {-1, array:reset(RelSeq, SegEntries)} - end, - load_segment_entries(KeepAcked, SegData, SegEntries1, - UnackedCount + UnackedCountDelta); -load_segment_entries(_KeepAcked, _SegData, SegEntries, UnackedCount) -> - {SegEntries, UnackedCount}. - -array_new() -> - array:new([{default, undefined}, fixed, {size, ?SEGMENT_ENTRY_COUNT}]). - -bool_to_int(true ) -> 1; -bool_to_int(false) -> 0. - -%%---------------------------------------------------------------------------- -%% journal & segment combination -%%---------------------------------------------------------------------------- - -%% Combine what we have just read from a segment file with what we're -%% holding for that segment in memory. There must be no duplicates. -segment_plus_journal(SegEntries, JEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {SegEntriesOut, AdditionalUnacked}) -> - SegEntry = array:get(RelSeq, SegEntriesOut), - {Obj, AdditionalUnackedDelta} = - segment_plus_journal1(SegEntry, JObj), - {case Obj of - undefined -> array:reset(RelSeq, SegEntriesOut); - _ -> array:set(RelSeq, Obj, SegEntriesOut) - end, - AdditionalUnacked + AdditionalUnackedDelta} - end, {SegEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item which we may be adding to (for items only in the journal), -%% modifying in (bits in both), or, when returning 'undefined', -%% erasing from (ack in journal, not segment) the segment array. The -%% other element of the tuple is the delta for AdditionalUnacked. -segment_plus_journal1(undefined, {?PUB, no_del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, no_ack} = Obj) -> - {Obj, 1}; -segment_plus_journal1(undefined, {?PUB, del, ack}) -> - {undefined, 0}; - -segment_plus_journal1({?PUB = Pub, no_del, no_ack}, {no_pub, del, no_ack}) -> - {{Pub, del, no_ack}, 0}; -segment_plus_journal1({?PUB, no_del, no_ack}, {no_pub, del, ack}) -> - {undefined, -1}; -segment_plus_journal1({?PUB, del, no_ack}, {no_pub, no_del, ack}) -> - {undefined, -1}. - -%% Remove from the journal entries for a segment, items that are -%% duplicates of entries found in the segment itself. Used on start up -%% to clean up the journal. -journal_minus_segment(JEntries, SegEntries) -> - array:sparse_foldl( - fun (RelSeq, JObj, {JEntriesOut, UnackedRemoved}) -> - SegEntry = array:get(RelSeq, SegEntries), - {Obj, UnackedRemovedDelta} = - journal_minus_segment1(JObj, SegEntry), - {case Obj of - keep -> JEntriesOut; - undefined -> array:reset(RelSeq, JEntriesOut); - _ -> array:set(RelSeq, Obj, JEntriesOut) - end, - UnackedRemoved + UnackedRemovedDelta} - end, {JEntries, 0}, JEntries). - -%% Here, the result is a tuple with the first element containing the -%% item we are adding to or modifying in the (initially fresh) journal -%% array. If the item is 'undefined' we leave the journal array -%% alone. The other element of the tuple is the deltas for -%% UnackedRemoved. - -%% Both the same. Must be at least the publish -journal_minus_segment1({?PUB, _Del, no_ack} = Obj, Obj) -> - {undefined, 1}; -journal_minus_segment1({?PUB, _Del, ack} = Obj, Obj) -> - {undefined, 0}; - -%% Just publish in journal -journal_minus_segment1({?PUB, no_del, no_ack}, undefined) -> - {keep, 0}; - -%% Publish and deliver in journal -journal_minus_segment1({?PUB, del, no_ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, no_ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, no_ack}, 1}; - -%% Publish, deliver and ack in journal -journal_minus_segment1({?PUB, del, ack}, undefined) -> - {keep, 0}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, no_del, no_ack}) -> - {{no_pub, del, ack}, 1}; -journal_minus_segment1({?PUB = Pub, del, ack}, {Pub, del, no_ack}) -> - {{no_pub, no_del, ack}, 1}; - -%% Just deliver in journal -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, no_ack}, {?PUB, del, no_ack}) -> - {undefined, 0}; - -%% Just ack in journal -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, no_del, ack}, {?PUB, del, ack}) -> - {undefined, -1}; - -%% Deliver and ack in journal -journal_minus_segment1({no_pub, del, ack}, {?PUB, no_del, no_ack}) -> - {keep, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, no_ack}) -> - {{no_pub, no_del, ack}, 0}; -journal_minus_segment1({no_pub, del, ack}, {?PUB, del, ack}) -> - {undefined, -1}. - -%%---------------------------------------------------------------------------- -%% upgrade -%%---------------------------------------------------------------------------- - -add_queue_ttl() -> - foreach_queue_index({fun add_queue_ttl_journal/1, - fun add_queue_ttl_segment/1}). - -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {<>, Rest}; -add_queue_ttl_journal(<>) -> - {[<>, MsgId, - expiry_to_binary(undefined)], Rest}; -add_queue_ttl_journal(_) -> - stop. - -add_queue_ttl_segment(<>) -> - {[<>, - MsgId, expiry_to_binary(undefined)], Rest}; -add_queue_ttl_segment(<>) -> - {<>, - Rest}; -add_queue_ttl_segment(_) -> - stop. - -%%---------------------------------------------------------------------------- - -foreach_queue_index(Funs) -> - QueuesDir = queues_dir(), - QueueDirNames = all_queue_directory_names(QueuesDir), - {ok, Gatherer} = gatherer:start_link(), - [begin - ok = gatherer:fork(Gatherer), - ok = worker_pool:submit_async( - fun () -> - transform_queue(filename:join(QueuesDir, QueueDirName), - Gatherer, Funs) - end) - end || QueueDirName <- QueueDirNames], - empty = gatherer:out(Gatherer), - unlink(Gatherer), - ok = gatherer:stop(Gatherer). - -transform_queue(Dir, Gatherer, {JournalFun, SegmentFun}) -> - ok = transform_file(filename:join(Dir, ?JOURNAL_FILENAME), JournalFun), - [ok = transform_file(filename:join(Dir, Seg), SegmentFun) - || Seg <- filelib:wildcard("*" ++ ?SEGMENT_EXTENSION, Dir)], - ok = gatherer:finish(Gatherer). - -transform_file(Path, Fun) -> - PathTmp = Path ++ ".upgrade", - case filelib:file_size(Path) of - 0 -> ok; - Size -> {ok, PathTmpHdl} = - file_handle_cache:open(PathTmp, ?WRITE_MODE, - [{write_buffer, infinity}]), - - {ok, PathHdl} = file_handle_cache:open( - Path, [{read_ahead, Size} | ?READ_MODE], []), - {ok, Content} = file_handle_cache:read(PathHdl, Size), - ok = file_handle_cache:close(PathHdl), - - ok = drive_transform_fun(Fun, PathTmpHdl, Content), - - ok = file_handle_cache:close(PathTmpHdl), - ok = file:rename(PathTmp, Path) - end. - -drive_transform_fun(Fun, Hdl, Contents) -> - case Fun(Contents) of - stop -> ok; - {Output, Contents1} -> ok = file_handle_cache:append(Hdl, Output), - drive_transform_fun(Fun, Hdl, Contents1) - end. diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl deleted file mode 100644 index 11ad62e0..00000000 --- a/src/rabbit_reader.erl +++ /dev/null @@ -1,938 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_reader). --include("rabbit_framing.hrl"). --include("rabbit.hrl"). - --export([start_link/3, info_keys/0, info/1, info/2, shutdown/2]). - --export([system_continue/3, system_terminate/4, system_code_change/4]). - --export([init/4, mainloop/2]). - --export([conserve_memory/2, server_properties/1]). - --export([process_channel_frame/5]). %% used by erlang-client - --export([emit_stats/1, force_event_refresh/1]). - --define(HANDSHAKE_TIMEOUT, 10). --define(NORMAL_TIMEOUT, 3). --define(CLOSING_TIMEOUT, 1). --define(CHANNEL_TERMINATION_TIMEOUT, 3). --define(SILENT_CLOSE_DELAY, 3). - -%%-------------------------------------------------------------------------- - --record(v1, {parent, sock, connection, callback, recv_len, pending_recv, - connection_state, queue_collector, heartbeater, stats_timer, - channel_sup_sup_pid, start_heartbeat_fun, buf, buf_len, - auth_mechanism, auth_state}). - --define(STATISTICS_KEYS, [pid, recv_oct, recv_cnt, send_oct, send_cnt, - send_pend, state, channels]). - --define(CREATION_EVENT_KEYS, [pid, address, port, peer_address, peer_port, ssl, - peer_cert_subject, peer_cert_issuer, - peer_cert_validity, auth_mechanism, - ssl_protocol, ssl_key_exchange, - ssl_cipher, ssl_hash, - protocol, user, vhost, timeout, frame_max, - client_properties]). - --define(INFO_KEYS, ?CREATION_EVENT_KEYS ++ ?STATISTICS_KEYS -- [pid]). - --define(IS_RUNNING(State), - (State#v1.connection_state =:= running orelse - State#v1.connection_state =:= blocking orelse - State#v1.connection_state =:= blocked)). - -%%-------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/3 :: (pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) -> - rabbit_types:ok(pid())). --spec(info_keys/0 :: () -> rabbit_types:info_keys()). --spec(info/1 :: (pid()) -> rabbit_types:infos()). --spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). --spec(emit_stats/1 :: (pid()) -> 'ok'). --spec(force_event_refresh/1 :: (pid()) -> 'ok'). --spec(shutdown/2 :: (pid(), string()) -> 'ok'). --spec(conserve_memory/2 :: (pid(), boolean()) -> 'ok'). --spec(server_properties/1 :: (rabbit_types:protocol()) -> - rabbit_framing:amqp_table()). - -%% These specs only exists to add no_return() to keep dialyzer happy --spec(init/4 :: (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun()) - -> no_return()). --spec(start_connection/7 :: - (pid(), pid(), pid(), rabbit_heartbeat:start_heartbeat_fun(), any(), - rabbit_net:socket(), - fun ((rabbit_net:socket()) -> - rabbit_types:ok_or_error2( - rabbit_net:socket(), any()))) -> no_return()). - --endif. - -%%-------------------------------------------------------------------------- - -start_link(ChannelSupSupPid, Collector, StartHeartbeatFun) -> - {ok, proc_lib:spawn_link(?MODULE, init, [self(), ChannelSupSupPid, - Collector, StartHeartbeatFun])}. - -shutdown(Pid, Explanation) -> - gen_server:call(Pid, {shutdown, Explanation}, infinity). - -init(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun) -> - ok = pg2_fixed:join(rabbit_network_connections, self()), - Deb = sys:debug_options([]), - receive - {go, Sock, SockTransform} -> - start_connection( - Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, Sock, - SockTransform) - end. - -system_continue(Parent, Deb, State) -> - ?MODULE:mainloop(Deb, State#v1{parent = Parent}). - -system_terminate(Reason, _Parent, _Deb, _State) -> - exit(Reason). - -system_code_change(Misc, _Module, _OldVsn, _Extra) -> - {ok, Misc}. - -info_keys() -> ?INFO_KEYS. - -info(Pid) -> - gen_server:call(Pid, info, infinity). - -info(Pid, Items) -> - case gen_server:call(Pid, {info, Items}, infinity) of - {ok, Res} -> Res; - {error, Error} -> throw(Error) - end. - -emit_stats(Pid) -> - gen_server:cast(Pid, emit_stats). - -force_event_refresh(Pid) -> - gen_server:cast(Pid, force_event_refresh). - -conserve_memory(Pid, Conserve) -> - Pid ! {conserve_memory, Conserve}, - ok. - -server_properties(Protocol) -> - {ok, Product} = application:get_key(rabbit, id), - {ok, Version} = application:get_key(rabbit, vsn), - - %% Get any configuration-specified server properties - {ok, RawConfigServerProps} = application:get_env(rabbit, - server_properties), - - %% Normalize the simplifed (2-tuple) and unsimplified (3-tuple) forms - %% from the config and merge them with the generated built-in properties - NormalizedConfigServerProps = - [{<<"capabilities">>, table, server_capabilities(Protocol)} | - [case X of - {KeyAtom, Value} -> {list_to_binary(atom_to_list(KeyAtom)), - longstr, - list_to_binary(Value)}; - {BinKey, Type, Value} -> {BinKey, Type, Value} - end || X <- RawConfigServerProps ++ - [{product, Product}, - {version, Version}, - {platform, "Erlang/OTP"}, - {copyright, ?COPYRIGHT_MESSAGE}, - {information, ?INFORMATION_MESSAGE}]]], - - %% Filter duplicated properties in favour of config file provided values - lists:usort(fun ({K1,_,_}, {K2,_,_}) -> K1 =< K2 end, - NormalizedConfigServerProps). - -server_capabilities(rabbit_framing_amqp_0_9_1) -> - [{<<"publisher_confirms">>, bool, true}, - {<<"exchange_exchange_bindings">>, bool, true}, - {<<"basic.nack">>, bool, true}, - {<<"consumer_cancel_notify">>, bool, true}]; -server_capabilities(_) -> - []. - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -socket_op(Sock, Fun) -> - case Fun(Sock) of - {ok, Res} -> Res; - {error, Reason} -> rabbit_log:error("error on TCP connection ~p:~p~n", - [self(), Reason]), - rabbit_log:info("closing TCP connection ~p~n", - [self()]), - exit(normal) - end. - -start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, - Sock, SockTransform) -> - process_flag(trap_exit, true), - {PeerAddress, PeerPort} = socket_op(Sock, fun rabbit_net:peername/1), - PeerAddressS = rabbit_misc:ntoab(PeerAddress), - rabbit_log:info("starting TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - ClientSock = socket_op(Sock, SockTransform), - erlang:send_after(?HANDSHAKE_TIMEOUT * 1000, self(), - handshake_timeout), - try - recvloop(Deb, switch_callback( - #v1{parent = Parent, - sock = ClientSock, - connection = #connection{ - protocol = none, - user = none, - timeout_sec = ?HANDSHAKE_TIMEOUT, - frame_max = ?FRAME_MIN_SIZE, - vhost = none, - client_properties = none, - capabilities = []}, - callback = uninitialized_callback, - recv_len = 0, - pending_recv = false, - connection_state = pre_init, - queue_collector = Collector, - heartbeater = none, - stats_timer = - rabbit_event:init_stats_timer(), - channel_sup_sup_pid = ChannelSupSupPid, - start_heartbeat_fun = StartHeartbeatFun, - buf = [], - buf_len = 0, - auth_mechanism = none, - auth_state = none - }, - handshake, 8)) - catch - Ex -> (if Ex == connection_closed_abruptly -> - fun rabbit_log:warning/2; - true -> - fun rabbit_log:error/2 - end)("exception on TCP connection ~p from ~s:~p~n~p~n", - [self(), PeerAddressS, PeerPort, Ex]) - after - rabbit_log:info("closing TCP connection ~p from ~s:~p~n", - [self(), PeerAddressS, PeerPort]), - %% We don't close the socket explicitly. The reader is the - %% controlling process and hence its termination will close - %% the socket. Furthermore, gen_tcp:close/1 waits for pending - %% output to be sent, which results in unnecessary delays. - %% - %% gen_tcp:close(ClientSock), - rabbit_event:notify(connection_closed, [{pid, self()}]) - end, - done. - -recvloop(Deb, State = #v1{pending_recv = true}) -> - mainloop(Deb, State); -recvloop(Deb, State = #v1{connection_state = blocked}) -> - mainloop(Deb, State); -recvloop(Deb, State = #v1{sock = Sock, recv_len = RecvLen, buf_len = BufLen}) - when BufLen < RecvLen -> - ok = rabbit_net:setopts(Sock, [{active, once}]), - mainloop(Deb, State#v1{pending_recv = true}); -recvloop(Deb, State = #v1{recv_len = RecvLen, buf = Buf, buf_len = BufLen}) -> - {Data, Rest} = split_binary(case Buf of - [B] -> B; - _ -> list_to_binary(lists:reverse(Buf)) - end, RecvLen), - recvloop(Deb, handle_input(State#v1.callback, Data, - State#v1{buf = [Rest], - buf_len = BufLen - RecvLen})). - -mainloop(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen}) -> - case rabbit_net:recv(Sock) of - {data, Data} -> recvloop(Deb, State#v1{buf = [Data | Buf], - buf_len = BufLen + size(Data), - pending_recv = false}); - closed -> if State#v1.connection_state =:= closed -> - State; - true -> - throw(connection_closed_abruptly) - end; - {error, Reason} -> throw({inet_error, Reason}); - {other, Other} -> handle_other(Other, Deb, State) - end. - -handle_other({conserve_memory, Conserve}, Deb, State) -> - recvloop(Deb, internal_conserve_memory(Conserve, State)); -handle_other({channel_closing, ChPid}, Deb, State) -> - ok = rabbit_channel:ready_for_close(ChPid), - channel_cleanup(ChPid), - mainloop(Deb, State); -handle_other({'EXIT', Parent, Reason}, _Deb, State = #v1{parent = Parent}) -> - terminate(io_lib:format("broker forced connection closure " - "with reason '~w'", [Reason]), State), - %% this is what we are expected to do according to - %% http://www.erlang.org/doc/man/sys.html - %% - %% If we wanted to be *really* nice we should wait for a while for - %% clients to close the socket at their end, just as we do in the - %% ordinary error case. However, since this termination is - %% initiated by our parent it is probably more important to exit - %% quickly. - exit(Reason); -handle_other({channel_exit, _Channel, E = {writer, send_failed, _Error}}, - _Deb, _State) -> - throw(E); -handle_other({channel_exit, Channel, Reason}, Deb, State) -> - mainloop(Deb, handle_exception(State, Channel, Reason)); -handle_other({'DOWN', _MRef, process, ChPid, Reason}, Deb, State) -> - mainloop(Deb, handle_dependent_exit(ChPid, Reason, State)); -handle_other(terminate_connection, _Deb, State) -> - State; -handle_other(handshake_timeout, Deb, State) - when ?IS_RUNNING(State) orelse - State#v1.connection_state =:= closing orelse - State#v1.connection_state =:= closed -> - mainloop(Deb, State); -handle_other(handshake_timeout, _Deb, State) -> - throw({handshake_timeout, State#v1.callback}); -handle_other(timeout, Deb, State = #v1{connection_state = closed}) -> - mainloop(Deb, State); -handle_other(timeout, _Deb, #v1{connection_state = S}) -> - throw({timeout, S}); -handle_other({'$gen_call', From, {shutdown, Explanation}}, Deb, State) -> - {ForceTermination, NewState} = terminate(Explanation, State), - gen_server:reply(From, ok), - case ForceTermination of - force -> ok; - normal -> mainloop(Deb, NewState) - end; -handle_other({'$gen_call', From, info}, Deb, State) -> - gen_server:reply(From, infos(?INFO_KEYS, State)), - mainloop(Deb, State); -handle_other({'$gen_call', From, {info, Items}}, Deb, State) -> - gen_server:reply(From, try {ok, infos(Items, State)} - catch Error -> {error, Error} - end), - mainloop(Deb, State); -handle_other({'$gen_cast', emit_stats}, Deb, State) -> - mainloop(Deb, internal_emit_stats(State)); -handle_other({'$gen_cast', force_event_refresh}, Deb, State) -> - rabbit_event:notify(connection_exists, - [{type, network} | - infos(?CREATION_EVENT_KEYS, State)]), - mainloop(Deb, State); -handle_other({system, From, Request}, Deb, State = #v1{parent = Parent}) -> - sys:handle_system_msg(Request, From, Parent, ?MODULE, Deb, State); -handle_other(Other, _Deb, _State) -> - %% internal error -> something worth dying for - exit({unexpected_message, Other}). - -switch_callback(State = #v1{connection_state = blocked, - heartbeater = Heartbeater}, Callback, Length) -> - ok = rabbit_heartbeat:pause_monitor(Heartbeater), - State#v1{callback = Callback, recv_len = Length}; -switch_callback(State, Callback, Length) -> - State#v1{callback = Callback, recv_len = Length}. - -terminate(Explanation, State) when ?IS_RUNNING(State) -> - {normal, send_exception(State, 0, - rabbit_misc:amqp_error( - connection_forced, Explanation, [], none))}; -terminate(_Explanation, State) -> - {force, State}. - -internal_conserve_memory(true, State = #v1{connection_state = running}) -> - State#v1{connection_state = blocking}; -internal_conserve_memory(false, State = #v1{connection_state = blocking}) -> - State#v1{connection_state = running}; -internal_conserve_memory(false, State = #v1{connection_state = blocked, - heartbeater = Heartbeater}) -> - ok = rabbit_heartbeat:resume_monitor(Heartbeater), - State#v1{connection_state = running}; -internal_conserve_memory(_Conserve, State) -> - State. - -close_connection(State = #v1{queue_collector = Collector, - connection = #connection{ - timeout_sec = TimeoutSec}}) -> - %% The spec says "Exclusive queues may only be accessed by the - %% current connection, and are deleted when that connection - %% closes." This does not strictly imply synchrony, but in - %% practice it seems to be what people assume. - rabbit_queue_collector:delete_all(Collector), - %% We terminate the connection after the specified interval, but - %% no later than ?CLOSING_TIMEOUT seconds. - TimeoutMillisec = - 1000 * if TimeoutSec > 0 andalso - TimeoutSec < ?CLOSING_TIMEOUT -> TimeoutSec; - true -> ?CLOSING_TIMEOUT - end, - erlang:send_after(TimeoutMillisec, self(), terminate_connection), - State#v1{connection_state = closed}. - -handle_dependent_exit(ChPid, Reason, State) -> - case termination_kind(Reason) of - controlled -> - channel_cleanup(ChPid), - maybe_close(State); - uncontrolled -> - case channel_cleanup(ChPid) of - undefined -> exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> rabbit_log:error( - "connection ~p, channel ~p - error:~n~p~n", - [self(), Channel, Reason]), - maybe_close( - handle_exception(State, Channel, Reason)) - end - end. - -channel_cleanup(ChPid) -> - case get({ch_pid, ChPid}) of - undefined -> undefined; - {Channel, MRef} -> erase({channel, Channel}), - erase({ch_pid, ChPid}), - erlang:demonitor(MRef, [flush]), - Channel - end. - -all_channels() -> [ChPid || {{ch_pid, ChPid}, _ChannelMRef} <- get()]. - -terminate_channels() -> - NChannels = - length([rabbit_channel:shutdown(ChPid) || ChPid <- all_channels()]), - if NChannels > 0 -> - Timeout = 1000 * ?CHANNEL_TERMINATION_TIMEOUT * NChannels, - TimerRef = erlang:send_after(Timeout, self(), cancel_wait), - wait_for_channel_termination(NChannels, TimerRef); - true -> ok - end. - -wait_for_channel_termination(0, TimerRef) -> - case erlang:cancel_timer(TimerRef) of - false -> receive - cancel_wait -> ok - end; - _ -> ok - end; - -wait_for_channel_termination(N, TimerRef) -> - receive - {'DOWN', _MRef, process, ChPid, Reason} -> - case channel_cleanup(ChPid) of - undefined -> - exit({abnormal_dependent_exit, ChPid, Reason}); - Channel -> - case termination_kind(Reason) of - controlled -> - ok; - uncontrolled -> - rabbit_log:error( - "connection ~p, channel ~p - " - "error while terminating:~n~p~n", - [self(), Channel, Reason]) - end, - wait_for_channel_termination(N-1, TimerRef) - end; - cancel_wait -> - exit(channel_termination_timeout) - end. - -maybe_close(State = #v1{connection_state = closing, - connection = #connection{protocol = Protocol}, - sock = Sock}) -> - case all_channels() of - [] -> - NewState = close_connection(State), - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - NewState; - _ -> State - end; -maybe_close(State) -> - State. - -termination_kind(normal) -> controlled; -termination_kind(_) -> uncontrolled. - -handle_frame(Type, 0, Payload, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}}) - when CS =:= closing; CS =:= closed -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - _Other -> State - end; -handle_frame(_Type, _Channel, _Payload, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_frame(Type, 0, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, 0, Type, Payload}); - heartbeat -> State; - {method, MethodName, FieldsBin} -> - handle_method0(MethodName, FieldsBin, State); - Other -> throw({unexpected_frame_on_channel0, Other}) - end; -handle_frame(Type, Channel, Payload, - State = #v1{connection = #connection{protocol = Protocol}}) -> - case rabbit_command_assembler:analyze_frame(Type, Payload, Protocol) of - error -> throw({unknown_frame, Channel, Type, Payload}); - heartbeat -> throw({unexpected_heartbeat_frame, Channel}); - AnalyzedFrame -> - case get({channel, Channel}) of - {ChPid, FramingState} -> - NewAState = process_channel_frame( - AnalyzedFrame, self(), - Channel, ChPid, FramingState), - put({channel, Channel}, {ChPid, NewAState}), - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - channel_cleanup(ChPid), - State; - {method, MethodName, _} -> - case (State#v1.connection_state =:= blocking - andalso - Protocol:method_has_content(MethodName)) of - true -> State#v1{connection_state = blocked}; - false -> State - end; - _ -> - State - end; - undefined -> - case ?IS_RUNNING(State) of - true -> send_to_new_channel( - Channel, AnalyzedFrame, State); - false -> throw({channel_frame_while_starting, - Channel, State#v1.connection_state, - AnalyzedFrame}) - end - end - end. - -handle_input(frame_header, <>, State) -> - ensure_stats_timer( - switch_callback(State, {frame_payload, Type, Channel, PayloadSize}, - PayloadSize + 1)); - -handle_input({frame_payload, Type, Channel, PayloadSize}, - PayloadAndMarker, State) -> - case PayloadAndMarker of - <> -> - switch_callback(handle_frame(Type, Channel, Payload, State), - frame_header, 7); - _ -> - throw({bad_payload, Type, Channel, PayloadSize, PayloadAndMarker}) - end; - -%% The two rules pertaining to version negotiation: -%% -%% * If the server cannot support the protocol specified in the -%% protocol header, it MUST respond with a valid protocol header and -%% then close the socket connection. -%% -%% * The server MUST provide a protocol version that is lower than or -%% equal to that requested by the client in the protocol header. -handle_input(handshake, <<"AMQP", 0, 0, 9, 1>>, State) -> - start_connection({0, 9, 1}, rabbit_framing_amqp_0_9_1, State); - -%% This is the protocol header for 0-9, which we can safely treat as -%% though it were 0-9-1. -handle_input(handshake, <<"AMQP", 1, 1, 0, 9>>, State) -> - start_connection({0, 9, 0}, rabbit_framing_amqp_0_9_1, State); - -%% This is what most clients send for 0-8. The 0-8 spec, confusingly, -%% defines the version as 8-0. -handle_input(handshake, <<"AMQP", 1, 1, 8, 0>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -%% The 0-8 spec as on the AMQP web site actually has this as the -%% protocol header; some libraries e.g., py-amqplib, send it when they -%% want 0-8. -handle_input(handshake, <<"AMQP", 1, 1, 9, 1>>, State) -> - start_connection({8, 0, 0}, rabbit_framing_amqp_0_8, State); - -handle_input(handshake, <<"AMQP", A, B, C, D>>, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_version, A, B, C, D}); - -handle_input(handshake, Other, #v1{sock = Sock}) -> - refuse_connection(Sock, {bad_header, Other}); - -handle_input(Callback, Data, _State) -> - throw({bad_input, Callback, Data}). - -%% Offer a protocol version to the client. Connection.start only -%% includes a major and minor version number, Luckily 0-9 and 0-9-1 -%% are similar enough that clients will be happy with either. -start_connection({ProtocolMajor, ProtocolMinor, _ProtocolRevision}, - Protocol, - State = #v1{sock = Sock, connection = Connection}) -> - Start = #'connection.start'{ - version_major = ProtocolMajor, - version_minor = ProtocolMinor, - server_properties = server_properties(Protocol), - mechanisms = auth_mechanisms_binary(Sock), - locales = <<"en_US">> }, - ok = send_on_channel0(Sock, Start, Protocol), - switch_callback(State#v1{connection = Connection#connection{ - timeout_sec = ?NORMAL_TIMEOUT, - protocol = Protocol}, - connection_state = starting}, - frame_header, 7). - -refuse_connection(Sock, Exception) -> - ok = inet_op(fun () -> rabbit_net:send(Sock, <<"AMQP",0,0,9,1>>) end), - throw(Exception). - -ensure_stats_timer(State = #v1{stats_timer = StatsTimer, - connection_state = running}) -> - Self = self(), - State#v1{stats_timer = rabbit_event:ensure_stats_timer( - StatsTimer, - fun() -> emit_stats(Self) end)}; -ensure_stats_timer(State) -> - State. - -%%-------------------------------------------------------------------------- - -handle_method0(MethodName, FieldsBin, - State = #v1{connection = #connection{protocol = Protocol}}) -> - HandleException = - fun(R) -> - case ?IS_RUNNING(State) of - true -> send_exception(State, 0, R); - %% We don't trust the client at this point - force - %% them to wait for a bit so they can't DOS us with - %% repeated failed logins etc. - false -> timer:sleep(?SILENT_CLOSE_DELAY * 1000), - throw({channel0_error, State#v1.connection_state, R}) - end - end, - try - handle_method0(Protocol:decode_method_fields(MethodName, FieldsBin), - State) - catch exit:#amqp_error{method = none} = Reason -> - HandleException(Reason#amqp_error{method = MethodName}); - Type:Reason -> - HandleException({Type, Reason, MethodName, erlang:get_stacktrace()}) - end. - -handle_method0(#'connection.start_ok'{mechanism = Mechanism, - response = Response, - client_properties = ClientProperties}, - State0 = #v1{connection_state = starting, - connection = Connection, - sock = Sock}) -> - AuthMechanism = auth_mechanism_to_module(Mechanism, Sock), - Capabilities = - case rabbit_misc:table_lookup(ClientProperties, <<"capabilities">>) of - {table, Capabilities1} -> Capabilities1; - _ -> [] - end, - State = State0#v1{auth_mechanism = AuthMechanism, - auth_state = AuthMechanism:init(Sock), - connection_state = securing, - connection = - Connection#connection{ - client_properties = ClientProperties, - capabilities = Capabilities}}, - auth_phase(Response, State); - -handle_method0(#'connection.secure_ok'{response = Response}, - State = #v1{connection_state = securing}) -> - auth_phase(Response, State); - -handle_method0(#'connection.tune_ok'{frame_max = FrameMax, - heartbeat = ClientHeartbeat}, - State = #v1{connection_state = tuning, - connection = Connection, - sock = Sock, - start_heartbeat_fun = SHF}) -> - ServerFrameMax = server_frame_max(), - if FrameMax /= 0 andalso FrameMax < ?FRAME_MIN_SIZE -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w < ~w min size", - [FrameMax, ?FRAME_MIN_SIZE]); - ServerFrameMax /= 0 andalso FrameMax > ServerFrameMax -> - rabbit_misc:protocol_error( - not_allowed, "frame_max=~w > ~w max size", - [FrameMax, ServerFrameMax]); - true -> - Frame = rabbit_binary_generator:build_heartbeat_frame(), - SendFun = fun() -> catch rabbit_net:send(Sock, Frame) end, - Parent = self(), - ReceiveFun = fun() -> Parent ! timeout end, - Heartbeater = SHF(Sock, ClientHeartbeat, SendFun, - ClientHeartbeat, ReceiveFun), - State#v1{connection_state = opening, - connection = Connection#connection{ - timeout_sec = ClientHeartbeat, - frame_max = FrameMax}, - heartbeater = Heartbeater} - end; - -handle_method0(#'connection.open'{virtual_host = VHostPath}, - State = #v1{connection_state = opening, - connection = Connection = #connection{ - user = User, - protocol = Protocol}, - sock = Sock, - stats_timer = StatsTimer}) -> - ok = rabbit_access_control:check_vhost_access(User, VHostPath), - NewConnection = Connection#connection{vhost = VHostPath}, - ok = send_on_channel0(Sock, #'connection.open_ok'{}, Protocol), - State1 = internal_conserve_memory( - rabbit_alarm:register(self(), {?MODULE, conserve_memory, []}), - State#v1{connection_state = running, - connection = NewConnection}), - rabbit_event:notify(connection_created, - [{type, network} | - infos(?CREATION_EVENT_KEYS, State1)]), - rabbit_event:if_enabled(StatsTimer, - fun() -> internal_emit_stats(State1) end), - State1; -handle_method0(#'connection.close'{}, State) when ?IS_RUNNING(State) -> - lists:foreach(fun rabbit_channel:shutdown/1, all_channels()), - maybe_close(State#v1{connection_state = closing}); -handle_method0(#'connection.close'{}, - State = #v1{connection_state = CS, - connection = #connection{protocol = Protocol}, - sock = Sock}) - when CS =:= closing; CS =:= closed -> - %% We're already closed or closing, so we don't need to cleanup - %% anything. - ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), - State; -handle_method0(#'connection.close_ok'{}, - State = #v1{connection_state = closed}) -> - self() ! terminate_connection, - State; -handle_method0(_Method, State = #v1{connection_state = CS}) - when CS =:= closing; CS =:= closed -> - State; -handle_method0(_Method, #v1{connection_state = S}) -> - rabbit_misc:protocol_error( - channel_error, "unexpected method in connection state ~w", [S]). - -%% Compute frame_max for this instance. Could simply use 0, but breaks -%% QPid Java client. -server_frame_max() -> - {ok, FrameMax} = application:get_env(rabbit, frame_max), - FrameMax. - -send_on_channel0(Sock, Method, Protocol) -> - ok = rabbit_writer:internal_send_command(Sock, 0, Method, Protocol). - -auth_mechanism_to_module(TypeBin, Sock) -> - case rabbit_registry:binary_to_type(TypeBin) of - {error, not_found} -> - rabbit_misc:protocol_error( - command_invalid, "unknown authentication mechanism '~s'", - [TypeBin]); - T -> - case {lists:member(T, auth_mechanisms(Sock)), - rabbit_registry:lookup_module(auth_mechanism, T)} of - {true, {ok, Module}} -> - Module; - _ -> - rabbit_misc:protocol_error( - command_invalid, - "invalid authentication mechanism '~s'", [T]) - end - end. - -auth_mechanisms(Sock) -> - {ok, Configured} = application:get_env(auth_mechanisms), - [Name || {Name, Module} <- rabbit_registry:lookup_all(auth_mechanism), - Module:should_offer(Sock), lists:member(Name, Configured)]. - -auth_mechanisms_binary(Sock) -> - list_to_binary( - string:join([atom_to_list(A) || A <- auth_mechanisms(Sock)], " ")). - -auth_phase(Response, - State = #v1{auth_mechanism = AuthMechanism, - auth_state = AuthState, - connection = Connection = - #connection{protocol = Protocol}, - sock = Sock}) -> - case AuthMechanism:handle_response(Response, AuthState) of - {refused, Msg, Args} -> - rabbit_misc:protocol_error( - access_refused, "~s login refused: ~s", - [proplists:get_value(name, AuthMechanism:description()), - io_lib:format(Msg, Args)]); - {protocol_error, Msg, Args} -> - rabbit_misc:protocol_error(syntax_error, Msg, Args); - {challenge, Challenge, AuthState1} -> - Secure = #'connection.secure'{challenge = Challenge}, - ok = send_on_channel0(Sock, Secure, Protocol), - State#v1{auth_state = AuthState1}; - {ok, User} -> - Tune = #'connection.tune'{channel_max = 0, - frame_max = server_frame_max(), - heartbeat = 0}, - ok = send_on_channel0(Sock, Tune, Protocol), - State#v1{connection_state = tuning, - connection = Connection#connection{user = User}} - end. - -%%-------------------------------------------------------------------------- - -infos(Items, State) -> [{Item, i(Item, State)} || Item <- Items]. - -i(pid, #v1{}) -> - self(); -i(address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({A, _}) -> A end, Sock); -i(port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:sockname/1, fun ({_, P}) -> P end, Sock); -i(peer_address, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({A, _}) -> A end, Sock); -i(peer_port, #v1{sock = Sock}) -> - socket_info(fun rabbit_net:peername/1, fun ({_, P}) -> P end, Sock); -i(ssl, #v1{sock = Sock}) -> - rabbit_net:is_ssl(Sock); -i(ssl_protocol, #v1{sock = Sock}) -> - ssl_info(fun ({P, _}) -> P end, Sock); -i(ssl_key_exchange, #v1{sock = Sock}) -> - ssl_info(fun ({_, {K, _, _}}) -> K end, Sock); -i(ssl_cipher, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, C, _}}) -> C end, Sock); -i(ssl_hash, #v1{sock = Sock}) -> - ssl_info(fun ({_, {_, _, H}}) -> H end, Sock); -i(peer_cert_issuer, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_issuer/1, Sock); -i(peer_cert_subject, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_subject/1, Sock); -i(peer_cert_validity, #v1{sock = Sock}) -> - cert_info(fun rabbit_ssl:peer_cert_validity/1, Sock); -i(SockStat, #v1{sock = Sock}) when SockStat =:= recv_oct; - SockStat =:= recv_cnt; - SockStat =:= send_oct; - SockStat =:= send_cnt; - SockStat =:= send_pend -> - socket_info(fun () -> rabbit_net:getstat(Sock, [SockStat]) end, - fun ([{_, I}]) -> I end); -i(state, #v1{connection_state = S}) -> - S; -i(channels, #v1{}) -> - length(all_channels()); -i(protocol, #v1{connection = #connection{protocol = none}}) -> - none; -i(protocol, #v1{connection = #connection{protocol = Protocol}}) -> - Protocol:version(); -i(auth_mechanism, #v1{auth_mechanism = none}) -> - none; -i(auth_mechanism, #v1{auth_mechanism = Mechanism}) -> - proplists:get_value(name, Mechanism:description()); -i(user, #v1{connection = #connection{user = #user{username = Username}}}) -> - Username; -i(user, #v1{connection = #connection{user = none}}) -> - ''; -i(vhost, #v1{connection = #connection{vhost = VHost}}) -> - VHost; -i(timeout, #v1{connection = #connection{timeout_sec = Timeout}}) -> - Timeout; -i(frame_max, #v1{connection = #connection{frame_max = FrameMax}}) -> - FrameMax; -i(client_properties, #v1{connection = #connection{ - client_properties = ClientProperties}}) -> - ClientProperties; -i(Item, #v1{}) -> - throw({bad_argument, Item}). - -socket_info(Get, Select, Sock) -> - socket_info(fun() -> Get(Sock) end, Select). - -socket_info(Get, Select) -> - case Get() of - {ok, T} -> Select(T); - {error, _} -> '' - end. - -ssl_info(F, Sock) -> - %% The first ok form is R14 - %% The second is R13 - the extra term is exportability (by inspection, - %% the docs are wrong) - case rabbit_net:ssl_info(Sock) of - nossl -> ''; - {error, _} -> ''; - {ok, {P, {K, C, H}}} -> F({P, {K, C, H}}); - {ok, {P, {K, C, H, _}}} -> F({P, {K, C, H}}) - end. - -cert_info(F, Sock) -> - case rabbit_net:peercert(Sock) of - nossl -> ''; - {error, no_peercert} -> ''; - {ok, Cert} -> list_to_binary(F(Cert)) - end. - -%%-------------------------------------------------------------------------- - -send_to_new_channel(Channel, AnalyzedFrame, State) -> - #v1{sock = Sock, queue_collector = Collector, - channel_sup_sup_pid = ChanSupSup, - connection = #connection{protocol = Protocol, - frame_max = FrameMax, - user = User, - vhost = VHost, - capabilities = Capabilities}} = State, - {ok, _ChSupPid, {ChPid, AState}} = - rabbit_channel_sup_sup:start_channel( - ChanSupSup, {tcp, Sock, Channel, FrameMax, self(), Protocol, User, - VHost, Capabilities, Collector}), - MRef = erlang:monitor(process, ChPid), - NewAState = process_channel_frame(AnalyzedFrame, self(), - Channel, ChPid, AState), - put({channel, Channel}, {ChPid, NewAState}), - put({ch_pid, ChPid}, {Channel, MRef}), - State. - -process_channel_frame(Frame, ErrPid, Channel, ChPid, AState) -> - case rabbit_command_assembler:process(Frame, AState) of - {ok, NewAState} -> NewAState; - {ok, Method, NewAState} -> rabbit_channel:do(ChPid, Method), - NewAState; - {ok, Method, Content, NewAState} -> rabbit_channel:do(ChPid, - Method, Content), - NewAState; - {error, Reason} -> ErrPid ! {channel_exit, Channel, - Reason}, - AState - end. - -handle_exception(State = #v1{connection_state = closed}, _Channel, _Reason) -> - State; -handle_exception(State, Channel, Reason) -> - send_exception(State, Channel, Reason). - -send_exception(State = #v1{connection = #connection{protocol = Protocol}}, - Channel, Reason) -> - {0, CloseMethod} = - rabbit_binary_generator:map_exception(Channel, Reason, Protocol), - terminate_channels(), - State1 = close_connection(State), - ok = rabbit_writer:internal_send_command( - State1#v1.sock, 0, CloseMethod, Protocol), - State1. - -internal_emit_stats(State = #v1{stats_timer = StatsTimer}) -> - rabbit_event:notify(connection_stats, infos(?STATISTICS_KEYS, State)), - State#v1{stats_timer = rabbit_event:reset_stats_timer(StatsTimer)}. diff --git a/src/rabbit_registry.erl b/src/rabbit_registry.erl deleted file mode 100644 index 9821ae7b..00000000 --- a/src/rabbit_registry.erl +++ /dev/null @@ -1,124 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_registry). - --behaviour(gen_server). - --export([start_link/0]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, - code_change/3]). - --export([register/3, binary_to_type/1, lookup_module/2, lookup_all/1]). - --define(SERVER, ?MODULE). --define(ETS_NAME, ?MODULE). - --ifdef(use_specs). - --spec(start_link/0 :: () -> rabbit_types:ok_pid_or_error()). --spec(register/3 :: (atom(), binary(), atom()) -> 'ok'). --spec(binary_to_type/1 :: - (binary()) -> atom() | rabbit_types:error('not_found')). --spec(lookup_module/2 :: - (atom(), atom()) -> rabbit_types:ok_or_error2(atom(), 'not_found')). --spec(lookup_all/1 :: (atom()) -> [{atom(), atom()}]). - --endif. - -%%--------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -%%--------------------------------------------------------------------------- - -register(Class, TypeName, ModuleName) -> - gen_server:call(?SERVER, {register, Class, TypeName, ModuleName}, infinity). - -%% This is used with user-supplied arguments (e.g., on exchange -%% declare), so we restrict it to existing atoms only. This means it -%% can throw a badarg, indicating that the type cannot have been -%% registered. -binary_to_type(TypeBin) when is_binary(TypeBin) -> - case catch list_to_existing_atom(binary_to_list(TypeBin)) of - {'EXIT', {badarg, _}} -> {error, not_found}; - TypeAtom -> TypeAtom - end. - -lookup_module(Class, T) when is_atom(T) -> - case ets:lookup(?ETS_NAME, {Class, T}) of - [{_, Module}] -> - {ok, Module}; - [] -> - {error, not_found} - end. - -lookup_all(Class) -> - [{K, V} || [K, V] <- ets:match(?ETS_NAME, {{Class, '$1'}, '$2'})]. - -%%--------------------------------------------------------------------------- - -internal_binary_to_type(TypeBin) when is_binary(TypeBin) -> - list_to_atom(binary_to_list(TypeBin)). - -internal_register(Class, TypeName, ModuleName) - when is_atom(Class), is_binary(TypeName), is_atom(ModuleName) -> - ok = sanity_check_module(class_module(Class), ModuleName), - true = ets:insert(?ETS_NAME, - {{Class, internal_binary_to_type(TypeName)}, ModuleName}), - ok. - -sanity_check_module(ClassModule, Module) -> - case catch lists:member(ClassModule, - lists:flatten( - [Bs || {Attr, Bs} <- - Module:module_info(attributes), - Attr =:= behavior orelse - Attr =:= behaviour])) of - {'EXIT', {undef, _}} -> {error, not_module}; - false -> {error, {not_type, ClassModule}}; - true -> ok - end. - -class_module(exchange) -> rabbit_exchange_type; -class_module(auth_mechanism) -> rabbit_auth_mechanism. - -%%--------------------------------------------------------------------------- - -init([]) -> - ?ETS_NAME = ets:new(?ETS_NAME, [protected, set, named_table]), - {ok, none}. - -handle_call({register, Class, TypeName, ModuleName}, _From, State) -> - ok = internal_register(Class, TypeName, ModuleName), - {reply, ok, State}; - -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/rabbit_restartable_sup.erl b/src/rabbit_restartable_sup.erl deleted file mode 100644 index 0491244b..00000000 --- a/src/rabbit_restartable_sup.erl +++ /dev/null @@ -1,32 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_restartable_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - --include("rabbit.hrl"). - -start_link(Name, {_M, _F, _A} = Fun) -> - supervisor:start_link({local, Name}, ?MODULE, [Fun]). - -init([{Mod, _F, _A} = Fun]) -> - {ok, {{one_for_one, 10, 10}, - [{Mod, Fun, transient, ?MAX_WAIT, worker, [Mod]}]}}. diff --git a/src/rabbit_router.erl b/src/rabbit_router.erl deleted file mode 100644 index d453a870..00000000 --- a/src/rabbit_router.erl +++ /dev/null @@ -1,140 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_router). --include_lib("stdlib/include/qlc.hrl"). --include("rabbit.hrl"). - --export([deliver/2, match_bindings/2, match_routing_key/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([routing_key/0, routing_result/0, match_result/0]). - --type(routing_key() :: binary()). --type(routing_result() :: 'routed' | 'unroutable' | 'not_delivered'). --type(qpids() :: [pid()]). --type(match_result() :: [rabbit_types:binding_destination()]). - --spec(deliver/2 :: ([rabbit_amqqueue:name()], rabbit_types:delivery()) -> - {routing_result(), qpids()}). --spec(match_bindings/2 :: (rabbit_types:binding_source(), - fun ((rabbit_types:binding()) -> boolean())) -> - match_result()). --spec(match_routing_key/2 :: (rabbit_types:binding_source(), - [routing_key()] | ['_']) -> - match_result()). - --endif. - -%%---------------------------------------------------------------------------- - -deliver(QNames, Delivery = #delivery{mandatory = false, - immediate = false}) -> - %% optimisation: when Mandatory = false and Immediate = false, - %% rabbit_amqqueue:deliver will deliver the message to the queue - %% process asynchronously, and return true, which means all the - %% QPids will always be returned. It is therefore safe to use a - %% fire-and-forget cast here and return the QPids - the semantics - %% is preserved. This scales much better than the non-immediate - %% case below. - QPids = lookup_qpids(QNames), - delegate:invoke_no_result( - QPids, fun (Pid) -> rabbit_amqqueue:deliver(Pid, Delivery) end), - {routed, QPids}; - -deliver(QNames, Delivery = #delivery{mandatory = Mandatory, - immediate = Immediate}) -> - QPids = lookup_qpids(QNames), - {Success, _} = - delegate:invoke(QPids, - fun (Pid) -> - rabbit_amqqueue:deliver(Pid, Delivery) - end), - {Routed, Handled} = - lists:foldl(fun fold_deliveries/2, {false, []}, Success), - check_delivery(Mandatory, Immediate, {Routed, Handled}). - - -%% TODO: Maybe this should be handled by a cursor instead. -%% TODO: This causes a full scan for each entry with the same source -match_bindings(SrcName, Match) -> - Query = qlc:q([DestinationName || - #route{binding = Binding = #binding{ - source = SrcName1, - destination = DestinationName}} <- - mnesia:table(rabbit_route), - SrcName == SrcName1, - Match(Binding)]), - mnesia:async_dirty(fun qlc:e/1, [Query]). - -match_routing_key(SrcName, [RoutingKey]) -> - find_routes(#route{binding = #binding{source = SrcName, - destination = '$1', - key = RoutingKey, - _ = '_'}}, - []); -match_routing_key(SrcName, [_|_] = RoutingKeys) -> - find_routes(#route{binding = #binding{source = SrcName, - destination = '$1', - key = '$2', - _ = '_'}}, - [list_to_tuple(['orelse' | [{'=:=', '$2', RKey} || - RKey <- RoutingKeys]])]). - -%%-------------------------------------------------------------------- - -fold_deliveries({Pid, true},{_, Handled}) -> {true, [Pid|Handled]}; -fold_deliveries({_, false},{_, Handled}) -> {true, Handled}. - -%% check_delivery(Mandatory, Immediate, {WasRouted, QPids}) -check_delivery(true, _ , {false, []}) -> {unroutable, []}; -check_delivery(_ , true, {_ , []}) -> {not_delivered, []}; -check_delivery(_ , _ , {_ , Qs}) -> {routed, Qs}. - -lookup_qpids(QNames) -> - lists:foldl(fun (QName, QPids) -> - case mnesia:dirty_read({rabbit_queue, QName}) of - [#amqqueue{pid = QPid, slave_pids = SPids}] -> - [QPid | SPids ++ QPids]; - [] -> - QPids - end - end, [], QNames). - -%% Normally we'd call mnesia:dirty_select/2 here, but that is quite -%% expensive due to -%% -%% 1) general mnesia overheads (figuring out table types and -%% locations, etc). We get away with bypassing these because we know -%% that the table -%% - is not the schema table -%% - has a local ram copy -%% - does not have any indices -%% -%% 2) 'fixing' of the table with ets:safe_fixtable/2, which is wholly -%% unnecessary. According to the ets docs (and the code in erl_db.c), -%% 'select' is safe anyway ("Functions that internally traverse over a -%% table, like select and match, will give the same guarantee as -%% safe_fixtable.") and, furthermore, even the lower level iterators -%% ('first' and 'next') are safe on ordered_set tables ("Note that for -%% tables of the ordered_set type, safe_fixtable/2 is not necessary as -%% calls to first/1 and next/2 will always succeed."), which -%% rabbit_route is. -find_routes(MatchHead, Conditions) -> - ets:select(rabbit_route, [{MatchHead, Conditions, ['$1']}]). diff --git a/src/rabbit_sasl_report_file_h.erl b/src/rabbit_sasl_report_file_h.erl deleted file mode 100644 index 6f3c5c75..00000000 --- a/src/rabbit_sasl_report_file_h.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sasl_report_file_h). - --behaviour(gen_event). - --export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2, - code_change/3]). - -%% rabbit_sasl_report_file_h is a wrapper around the sasl_report_file_h -%% module because the original's init/1 does not match properly -%% with the result of closing the old handler when swapping handlers. -%% The first init/1 additionally allows for simple log rotation -%% when the suffix is not the empty string. - -%% Used only when swapping handlers and performing -%% log rotation -init({{File, Suffix}, []}) -> - case rabbit_misc:append_file(File, Suffix) of - ok -> ok; - {error, Error} -> - rabbit_log:error("Failed to append contents of " - "sasl log file '~s' to '~s':~n~p~n", - [File, [File, Suffix], Error]) - end, - init(File); -%% Used only when swapping handlers and the original handler -%% failed to terminate or was never installed -init({{File, _}, error}) -> - init(File); -%% Used only when swapping handlers without -%% doing any log rotation -init({File, []}) -> - init(File); -init({File, _Type} = FileInfo) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init(FileInfo); -init(File) -> - rabbit_misc:ensure_parent_dirs_exist(File), - sasl_report_file_h:init({File, sasl_error_logger_type()}). - -handle_event(Event, State) -> - sasl_report_file_h:handle_event(Event, State). - -handle_info(Event, State) -> - sasl_report_file_h:handle_info(Event, State). - -handle_call(Event, State) -> - sasl_report_file_h:handle_call(Event, State). - -terminate(Reason, State) -> - sasl_report_file_h:terminate(Reason, State). - -code_change(_OldVsn, State, _Extra) -> - %% There is no sasl_report_file_h:code_change/3 - {ok, State}. - -%%---------------------------------------------------------------------- - -sasl_error_logger_type() -> - case application:get_env(sasl, errlog_type) of - {ok, error} -> error; - {ok, progress} -> progress; - {ok, all} -> all; - {ok, Bad} -> throw({error, {wrong_errlog_type, Bad}}); - _ -> all - end. diff --git a/src/rabbit_ssl.erl b/src/rabbit_ssl.erl deleted file mode 100644 index e0defa9e..00000000 --- a/src/rabbit_ssl.erl +++ /dev/null @@ -1,246 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_ssl). - --include("rabbit.hrl"). - --include_lib("public_key/include/public_key.hrl"). - --export([peer_cert_issuer/1, peer_cert_subject/1, peer_cert_validity/1]). --export([peer_cert_subject_item/2]). - -%%-------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([certificate/0]). - --type(certificate() :: binary()). - --spec(peer_cert_issuer/1 :: (certificate()) -> string()). --spec(peer_cert_subject/1 :: (certificate()) -> string()). --spec(peer_cert_validity/1 :: (certificate()) -> string()). --spec(peer_cert_subject_item/2 :: - (certificate(), tuple()) -> string() | 'not_found'). - --endif. - -%%-------------------------------------------------------------------------- -%% High-level functions used by reader -%%-------------------------------------------------------------------------- - -%% Return a string describing the certificate's issuer. -peer_cert_issuer(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - issuer = Issuer }}) -> - format_rdn_sequence(Issuer) - end, Cert). - -%% Return a string describing the certificate's subject, as per RFC4514. -peer_cert_subject(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - format_rdn_sequence(Subject) - end, Cert). - -%% Return a part of the certificate's subject. -peer_cert_subject_item(Cert, Type) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - subject = Subject }}) -> - find_by_type(Type, Subject) - end, Cert). - -%% Return a string describing the certificate's validity. -peer_cert_validity(Cert) -> - cert_info(fun(#'OTPCertificate' { - tbsCertificate = #'OTPTBSCertificate' { - validity = {'Validity', Start, End} }}) -> - lists:flatten( - io_lib:format("~s - ~s", [format_asn1_value(Start), - format_asn1_value(End)])) - end, Cert). - -%%-------------------------------------------------------------------------- - -cert_info(F, Cert) -> - F(case public_key:pkix_decode_cert(Cert, otp) of - {ok, DecCert} -> DecCert; %%pre R14B - DecCert -> DecCert %%R14B onwards - end). - -find_by_type(Type, {rdnSequence, RDNs}) -> - case [V || #'AttributeTypeAndValue'{type = T, value = V} - <- lists:flatten(RDNs), - T == Type] of - [Val] -> format_asn1_value(Val); - [] -> not_found - end. - -%%-------------------------------------------------------------------------- -%% Formatting functions -%%-------------------------------------------------------------------------- - -%% Format and rdnSequence as a RFC4514 subject string. -format_rdn_sequence({rdnSequence, Seq}) -> - string:join(lists:reverse([format_complex_rdn(RDN) || RDN <- Seq]), ","). - -%% Format an RDN set. -format_complex_rdn(RDNs) -> - string:join([format_rdn(RDN) || RDN <- RDNs], "+"). - -%% Format an RDN. If the type name is unknown, use the dotted decimal -%% representation. See RFC4514, section 2.3. -format_rdn(#'AttributeTypeAndValue'{type = T, value = V}) -> - FV = escape_rdn_value(format_asn1_value(V)), - Fmts = [{?'id-at-surname' , "SN"}, - {?'id-at-givenName' , "GIVENNAME"}, - {?'id-at-initials' , "INITIALS"}, - {?'id-at-generationQualifier' , "GENERATIONQUALIFIER"}, - {?'id-at-commonName' , "CN"}, - {?'id-at-localityName' , "L"}, - {?'id-at-stateOrProvinceName' , "ST"}, - {?'id-at-organizationName' , "O"}, - {?'id-at-organizationalUnitName' , "OU"}, - {?'id-at-title' , "TITLE"}, - {?'id-at-countryName' , "C"}, - {?'id-at-serialNumber' , "SERIALNUMBER"}, - {?'id-at-pseudonym' , "PSEUDONYM"}, - {?'id-domainComponent' , "DC"}, - {?'id-emailAddress' , "EMAILADDRESS"}, - {?'street-address' , "STREET"}], - case proplists:lookup(T, Fmts) of - {_, Fmt} -> - io_lib:format(Fmt ++ "=~s", [FV]); - none when is_tuple(T) -> - TypeL = [io_lib:format("~w", [X]) || X <- tuple_to_list(T)], - io_lib:format("~s:~s", [string:join(TypeL, "."), FV]); - none -> - io_lib:format("~p:~s", [T, FV]) - end. - -%% Escape a string as per RFC4514. -escape_rdn_value(V) -> - escape_rdn_value(V, start). - -escape_rdn_value([], _) -> - []; -escape_rdn_value([C | S], start) when C =:= $ ; C =:= $# -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value(S, start) -> - escape_rdn_value(S, middle); -escape_rdn_value([$ ], middle) -> - [$\\, $ ]; -escape_rdn_value([C | S], middle) when C =:= $"; C =:= $+; C =:= $,; C =:= $;; - C =:= $<; C =:= $>; C =:= $\\ -> - [$\\, C | escape_rdn_value(S, middle)]; -escape_rdn_value([C | S], middle) when C < 32 ; C =:= 127 -> - %% only U+0000 needs escaping, but for display purposes it's handy - %% to escape all non-printable chars - lists:flatten(io_lib:format("\\~2.16.0B", [C])) ++ - escape_rdn_value(S, middle); -escape_rdn_value([C | S], middle) -> - [C | escape_rdn_value(S, middle)]. - -%% Get the string representation of an OTPCertificate field. -format_asn1_value({ST, S}) when ST =:= teletexString; ST =:= printableString; - ST =:= universalString; ST =:= utf8String; - ST =:= bmpString -> - format_directory_string(ST, S); -format_asn1_value({utcTime, [Y1, Y2, M1, M2, D1, D2, H1, H2, - Min1, Min2, S1, S2, $Z]}) -> - io_lib:format("20~c~c-~c~c-~c~cT~c~c:~c~c:~c~cZ", - [Y1, Y2, M1, M2, D1, D2, H1, H2, Min1, Min2, S1, S2]); -format_asn1_value(V) -> - io_lib:format("~p", [V]). - -%% DirectoryString { INTEGER : maxSize } ::= CHOICE { -%% teletexString TeletexString (SIZE (1..maxSize)), -%% printableString PrintableString (SIZE (1..maxSize)), -%% bmpString BMPString (SIZE (1..maxSize)), -%% universalString UniversalString (SIZE (1..maxSize)), -%% uTF8String UTF8String (SIZE (1..maxSize)) } -%% -%% Precise definitions of printable / teletexString are hard to come -%% by. This is what I reconstructed: -%% -%% printableString: -%% "intended to represent the limited character sets available to -%% mainframe input terminals" -%% A-Z a-z 0-9 ' ( ) + , - . / : = ? [space] -%% http://msdn.microsoft.com/en-us/library/bb540814(v=vs.85).aspx -%% -%% teletexString: -%% "a sizable volume of software in the world treats TeletexString -%% (T61String) as a simple 8-bit string with mostly Windows Latin 1 -%% (superset of iso-8859-1) encoding" -%% http://www.mail-archive.com/asn1@asn1.org/msg00460.html -%% -%% (However according to that link X.680 actually defines -%% TeletexString in some much more involved and crazy way. I suggest -%% we treat it as ISO-8859-1 since Erlang does not support Windows -%% Latin 1). -%% -%% bmpString: -%% UCS-2 according to RFC 3641. Hence cannot represent Unicode -%% characters above 65535 (outside the "Basic Multilingual Plane"). -%% -%% universalString: -%% UCS-4 according to RFC 3641. -%% -%% utf8String: -%% UTF-8 according to RFC 3641. -%% -%% Within Rabbit we assume UTF-8 encoding. Since printableString is a -%% subset of ASCII it is also a subset of UTF-8. The others need -%% converting. Fortunately since the Erlang SSL library does the -%% decoding for us (albeit into a weird format, see below), we just -%% need to handle encoding into UTF-8. Note also that utf8Strings come -%% back as binary. -%% -%% Note for testing: the default Ubuntu configuration for openssl will -%% only create printableString or teletexString types no matter what -%% you do. Edit string_mask in the [req] section of -%% /etc/ssl/openssl.cnf to change this (see comments there). You -%% probably also need to set utf8 = yes to get it to accept UTF-8 on -%% the command line. Also note I could not get openssl to generate a -%% universalString. - -format_directory_string(printableString, S) -> S; -format_directory_string(teletexString, S) -> utf8_list_from(S); -format_directory_string(bmpString, S) -> utf8_list_from(S); -format_directory_string(universalString, S) -> utf8_list_from(S); -format_directory_string(utf8String, S) -> binary_to_list(S). - -utf8_list_from(S) -> - binary_to_list( - unicode:characters_to_binary(flatten_ssl_list(S), utf32, utf8)). - -%% The Erlang SSL implementation invents its own representation for -%% non-ascii strings - looking like [97,{0,0,3,187}] (that's LATIN -%% SMALL LETTER A followed by GREEK SMALL LETTER LAMDA). We convert -%% this into a list of unicode characters, which we can tell -%% unicode:characters_to_binary is utf32. - -flatten_ssl_list(L) -> [flatten_ssl_list_item(I) || I <- L]. - -flatten_ssl_list_item({A, B, C, D}) -> - A * (1 bsl 24) + B * (1 bsl 16) + C * (1 bsl 8) + D; -flatten_ssl_list_item(N) when is_number (N) -> - N. diff --git a/src/rabbit_sup.erl b/src/rabbit_sup.erl deleted file mode 100644 index 508b127e..00000000 --- a/src/rabbit_sup.erl +++ /dev/null @@ -1,64 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_sup). - --behaviour(supervisor). - --export([start_link/0, start_child/1, start_child/2, start_child/3, - start_restartable_child/1, start_restartable_child/2, stop_child/1]). - --export([init/1]). - --include("rabbit.hrl"). - --define(SERVER, ?MODULE). - -start_link() -> - supervisor:start_link({local, ?SERVER}, ?MODULE, []). - -start_child(Mod) -> - start_child(Mod, []). - -start_child(Mod, Args) -> - start_child(Mod, Mod, Args). - -start_child(ChildId, Mod, Args) -> - {ok, _} = supervisor:start_child(?SERVER, - {ChildId, {Mod, start_link, Args}, - transient, ?MAX_WAIT, worker, [Mod]}), - ok. - -start_restartable_child(Mod) -> - start_restartable_child(Mod, []). - -start_restartable_child(Mod, Args) -> - Name = list_to_atom(atom_to_list(Mod) ++ "_sup"), - {ok, _} = supervisor:start_child( - ?SERVER, - {Name, {rabbit_restartable_sup, start_link, - [Name, {Mod, start_link, Args}]}, - transient, infinity, supervisor, [rabbit_restartable_sup]}), - ok. - -stop_child(ChildId) -> - case supervisor:terminate_child(?SERVER, ChildId) of - ok -> supervisor:delete_child(?SERVER, ChildId); - E -> E - end. - -init([]) -> - {ok, {{one_for_all, 0, 1}, []}}. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl deleted file mode 100644 index f7689e37..00000000 --- a/src/rabbit_tests.erl +++ /dev/null @@ -1,2511 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests). - --compile([export_all]). - --export([all_tests/0, test_parsing/0]). - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). --include_lib("kernel/include/file.hrl"). - --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). --define(CLEANUP_QUEUE_NAME, <<"cleanup-queue">>). - -test_content_prop_roundtrip(Datum, Binary) -> - Types = [element(1, E) || E <- Datum], - Values = [element(2, E) || E <- Datum], - Values = rabbit_binary_parser:parse_properties(Types, Binary), %% assertion - Binary = rabbit_binary_generator:encode_properties(Types, Values). %% assertion - -all_tests() -> - passed = gm_tests:all_tests(), - application:set_env(rabbit, file_handles_high_watermark, 10, infinity), - ok = file_handle_cache:set_limit(10), - passed = test_file_handle_cache(), - passed = test_backing_queue(), - passed = test_priority_queue(), - passed = test_bpqueue(), - passed = test_unfold(), - passed = test_supervisor_delayed_restart(), - passed = test_parsing(), - passed = test_content_framing(), - passed = test_content_transcoding(), - passed = test_topic_matching(), - passed = test_log_management(), - passed = test_app_management(), - passed = test_log_management_during_startup(), - passed = test_statistics(), - passed = test_option_parser(), - passed = test_cluster_management(), - passed = test_user_management(), - passed = test_server_status(), - passed = test_confirms(), - passed = maybe_run_cluster_dependent_tests(), - passed = test_configurable_server_properties(), - passed. - -maybe_run_cluster_dependent_tests() -> - SecondaryNode = rabbit_misc:makenode("hare"), - - case net_adm:ping(SecondaryNode) of - pong -> passed = run_cluster_dependent_tests(SecondaryNode); - pang -> io:format("Skipping cluster dependent tests with node ~p~n", - [SecondaryNode]) - end, - passed. - -run_cluster_dependent_tests(SecondaryNode) -> - SecondaryNodeS = atom_to_list(SecondaryNode), - - ok = control_action(stop_app, []), - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - - io:format("Running cluster dependent tests with node ~p~n", [SecondaryNode]), - passed = test_delegates_async(SecondaryNode), - passed = test_delegates_sync(SecondaryNode), - passed = test_queue_cleanup(SecondaryNode), - passed = test_declare_on_dead_queue(SecondaryNode), - - %% we now run the tests remotely, so that code coverage on the - %% local node picks up more of the delegate - Node = node(), - Self = self(), - Remote = spawn(SecondaryNode, - fun () -> Rs = [ test_delegates_async(Node), - test_delegates_sync(Node), - test_queue_cleanup(Node), - test_declare_on_dead_queue(Node) ], - Self ! {self(), Rs} - end), - receive - {Remote, Result} -> - Result = lists:duplicate(length(Result), passed) - after 30000 -> - throw(timeout) - end, - - passed. - -test_priority_queue() -> - - false = priority_queue:is_queue(not_a_queue), - - %% empty Q - Q = priority_queue:new(), - {true, true, 0, [], []} = test_priority_queue(Q), - - %% 1-4 element no-priority Q - true = lists:all(fun (X) -> X =:= passed end, - lists:map(fun test_simple_n_element_queue/1, - lists:seq(1, 4))), - - %% 1-element priority Q - Q1 = priority_queue:in(foo, 1, priority_queue:new()), - {true, false, 1, [{1, foo}], [foo]} = - test_priority_queue(Q1), - - %% 2-element same-priority Q - Q2 = priority_queue:in(bar, 1, Q1), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q2), - - %% 2-element different-priority Q - Q3 = priority_queue:in(bar, 2, Q1), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q3), - - %% 1-element negative priority Q - Q4 = priority_queue:in(foo, -1, priority_queue:new()), - {true, false, 1, [{-1, foo}], [foo]} = test_priority_queue(Q4), - - %% merge 2 * 1-element no-priority Qs - Q5 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{0, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q5), - - %% merge 1-element no-priority Q with 1-element priority Q - Q6 = priority_queue:join(priority_queue:in(foo, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, bar}, {0, foo}], [bar, foo]} = - test_priority_queue(Q6), - - %% merge 1-element priority Q with 1-element no-priority Q - Q7 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, Q)), - {true, false, 2, [{1, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q7), - - %% merge 2 * 1-element same-priority Qs - Q8 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 1, Q)), - {true, false, 2, [{1, foo}, {1, bar}], [foo, bar]} = - test_priority_queue(Q8), - - %% merge 2 * 1-element different-priority Qs - Q9 = priority_queue:join(priority_queue:in(foo, 1, Q), - priority_queue:in(bar, 2, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q9), - - %% merge 2 * 1-element different-priority Qs (other way around) - Q10 = priority_queue:join(priority_queue:in(bar, 2, Q), - priority_queue:in(foo, 1, Q)), - {true, false, 2, [{2, bar}, {1, foo}], [bar, foo]} = - test_priority_queue(Q10), - - %% merge 2 * 2-element multi-different-priority Qs - Q11 = priority_queue:join(Q6, Q5), - {true, false, 4, [{1, bar}, {0, foo}, {0, foo}, {0, bar}], - [bar, foo, foo, bar]} = test_priority_queue(Q11), - - %% and the other way around - Q12 = priority_queue:join(Q5, Q6), - {true, false, 4, [{1, bar}, {0, foo}, {0, bar}, {0, foo}], - [bar, foo, bar, foo]} = test_priority_queue(Q12), - - %% merge with negative priorities - Q13 = priority_queue:join(Q4, Q5), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q13), - - %% and the other way around - Q14 = priority_queue:join(Q5, Q4), - {true, false, 3, [{0, foo}, {0, bar}, {-1, foo}], [foo, bar, foo]} = - test_priority_queue(Q14), - - %% joins with empty queues: - Q1 = priority_queue:join(Q, Q1), - Q1 = priority_queue:join(Q1, Q), - - %% insert with priority into non-empty zero-priority queue - Q15 = priority_queue:in(baz, 1, Q5), - {true, false, 3, [{1, baz}, {0, foo}, {0, bar}], [baz, foo, bar]} = - test_priority_queue(Q15), - - %% 1-element infinity priority Q - Q16 = priority_queue:in(foo, infinity, Q), - {true, false, 1, [{infinity, foo}], [foo]} = test_priority_queue(Q16), - - %% add infinity to 0-priority Q - Q17 = priority_queue:in(foo, infinity, priority_queue:in(bar, Q)), - {true, false, 2, [{infinity, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q17), - - %% and the other way around - Q18 = priority_queue:in(bar, priority_queue:in(foo, infinity, Q)), - {true, false, 2, [{infinity, foo}, {0, bar}], [foo, bar]} = - test_priority_queue(Q18), - - %% add infinity to mixed-priority Q - Q19 = priority_queue:in(qux, infinity, Q3), - {true, false, 3, [{infinity, qux}, {2, bar}, {1, foo}], [qux, bar, foo]} = - test_priority_queue(Q19), - - %% merge the above with a negative priority Q - Q20 = priority_queue:join(Q19, Q4), - {true, false, 4, [{infinity, qux}, {2, bar}, {1, foo}, {-1, foo}], - [qux, bar, foo, foo]} = test_priority_queue(Q20), - - %% merge two infinity priority queues - Q21 = priority_queue:join(priority_queue:in(foo, infinity, Q), - priority_queue:in(bar, infinity, Q)), - {true, false, 2, [{infinity, foo}, {infinity, bar}], [foo, bar]} = - test_priority_queue(Q21), - - %% merge two mixed priority with infinity queues - Q22 = priority_queue:join(Q18, Q20), - {true, false, 6, [{infinity, foo}, {infinity, qux}, {2, bar}, {1, foo}, - {0, bar}, {-1, foo}], [foo, qux, bar, foo, bar, foo]} = - test_priority_queue(Q22), - - passed. - -priority_queue_in_all(Q, L) -> - lists:foldl(fun (X, Acc) -> priority_queue:in(X, Acc) end, Q, L). - -priority_queue_out_all(Q) -> - case priority_queue:out(Q) of - {empty, _} -> []; - {{value, V}, Q1} -> [V | priority_queue_out_all(Q1)] - end. - -test_priority_queue(Q) -> - {priority_queue:is_queue(Q), - priority_queue:is_empty(Q), - priority_queue:len(Q), - priority_queue:to_list(Q), - priority_queue_out_all(Q)}. - -test_bpqueue() -> - Q = bpqueue:new(), - true = bpqueue:is_empty(Q), - 0 = bpqueue:len(Q), - [] = bpqueue:to_list(Q), - - Q1 = bpqueue_test(fun bpqueue:in/3, fun bpqueue:out/1, - fun bpqueue:to_list/1, - fun bpqueue:foldl/3, fun bpqueue:map_fold_filter_l/4), - Q2 = bpqueue_test(fun bpqueue:in_r/3, fun bpqueue:out_r/1, - fun (QR) -> lists:reverse( - [{P, lists:reverse(L)} || - {P, L} <- bpqueue:to_list(QR)]) - end, - fun bpqueue:foldr/3, fun bpqueue:map_fold_filter_r/4), - - [{foo, [1, 2]}, {bar, [3]}] = bpqueue:to_list(bpqueue:join(Q, Q1)), - [{bar, [3]}, {foo, [2, 1]}] = bpqueue:to_list(bpqueue:join(Q2, Q)), - [{foo, [1, 2]}, {bar, [3, 3]}, {foo, [2,1]}] = - bpqueue:to_list(bpqueue:join(Q1, Q2)), - - [{foo, [1, 2]}, {bar, [3]}, {foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list(bpqueue:join(Q1, Q1)), - - [{foo, [1, 2]}, {bar, [3]}] = - bpqueue:to_list( - bpqueue:from_list( - [{x, []}, {foo, [1]}, {y, []}, {foo, [2]}, {bar, [3]}, {z, []}])), - - [{undefined, [a]}] = bpqueue:to_list(bpqueue:from_list([{undefined, [a]}])), - - {4, [a,b,c,d]} = - bpqueue:foldl( - fun (Prefix, Value, {Prefix, Acc}) -> - {Prefix + 1, [Value | Acc]} - end, - {0, []}, bpqueue:from_list([{0,[d]}, {1,[c]}, {2,[b]}, {3,[a]}])), - - [{bar,3}, {foo,2}, {foo,1}] = - bpqueue:foldr(fun (P, V, I) -> [{P,V} | I] end, [], Q2), - - BPQL = [{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], - BPQ = bpqueue:from_list(BPQL), - - %% no effect - {BPQL, 0} = bpqueue_mffl([none], {none, []}, BPQ), - {BPQL, 0} = bpqueue_mffl([foo,bar], {none, [1]}, BPQ), - {BPQL, 0} = bpqueue_mffl([bar], {none, [3]}, BPQ), - {BPQL, 0} = bpqueue_mffr([bar], {foo, [5]}, BPQ), - - %% process 1 item - {[{foo,[-1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([foo,bar], {foo, [2]}, BPQ), - {[{foo,[1,2,2]}, {bar,[-3,4,5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffl([bar], {bar, [4]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[5,6,-7]}], 1} = - bpqueue_mffr([foo,bar], {foo, [6]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4]}, {baz,[-5]}, {foo,[5,6,7]}], 1} = - bpqueue_mffr([bar], {baz, [4]}, BPQ), - - %% change prefix - {[{bar,[-1,-2,-2,-3,-4,-5,-5,-6,-7]}], 9} = - bpqueue_mffl([foo,bar], {bar, []}, BPQ), - {[{bar,[-1,-2,-2,3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {bar, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6]}, {foo,[7]}], 5} = - bpqueue_mffl([foo], {bar, [7]}, BPQ), - {[{foo,[1,2,2,-3,-4]}, {bar,[5]}, {foo,[5,6,7]}], 2} = - bpqueue_mffl([bar], {foo, [5]}, BPQ), - {[{bar,[-1,-2,-2,3,4,5,-5,-6,-7]}], 6} = - bpqueue_mffl([foo], {bar, []}, BPQ), - {[{foo,[1,2,2,-3,-4,-5,5,6,7]}], 3} = - bpqueue_mffl([bar], {foo, []}, BPQ), - - %% edge cases - {[{foo,[-1,-2,-2]}, {bar,[3,4,5]}, {foo,[5,6,7]}], 3} = - bpqueue_mffl([foo], {foo, [5]}, BPQ), - {[{foo,[1,2,2]}, {bar,[3,4,5]}, {foo,[-5,-6,-7]}], 3} = - bpqueue_mffr([foo], {foo, [2]}, BPQ), - - passed. - -bpqueue_test(In, Out, List, Fold, MapFoldFilter) -> - Q = bpqueue:new(), - {empty, _Q} = Out(Q), - - ok = Fold(fun (Prefix, Value, ok) -> {error, Prefix, Value} end, ok, Q), - {Q1M, 0} = MapFoldFilter(fun(_P) -> throw(explosion) end, - fun(_V, _N) -> throw(explosion) end, 0, Q), - [] = bpqueue:to_list(Q1M), - - Q1 = In(bar, 3, In(foo, 2, In(foo, 1, Q))), - false = bpqueue:is_empty(Q1), - 3 = bpqueue:len(Q1), - [{foo, [1, 2]}, {bar, [3]}] = List(Q1), - - {{value, foo, 1}, Q3} = Out(Q1), - {{value, foo, 2}, Q4} = Out(Q3), - {{value, bar, 3}, _Q5} = Out(Q4), - - F = fun (QN) -> - MapFoldFilter(fun (foo) -> true; - (_) -> false - end, - fun (2, _Num) -> stop; - (V, Num) -> {bar, -V, V - Num} end, - 0, QN) - end, - {Q6, 0} = F(Q), - [] = bpqueue:to_list(Q6), - {Q7, 1} = F(Q1), - [{bar, [-1]}, {foo, [2]}, {bar, [3]}] = List(Q7), - - Q1. - -bpqueue_mffl(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_l/4, FF1A, FF2A, BPQ). - -bpqueue_mffr(FF1A, FF2A, BPQ) -> - bpqueue_mff(fun bpqueue:map_fold_filter_r/4, FF1A, FF2A, BPQ). - -bpqueue_mff(Fold, FF1A, FF2A, BPQ) -> - FF1 = fun (Prefixes) -> - fun (P) -> lists:member(P, Prefixes) end - end, - FF2 = fun ({Prefix, Stoppers}) -> - fun (Val, Num) -> - case lists:member(Val, Stoppers) of - true -> stop; - false -> {Prefix, -Val, 1 + Num} - end - end - end, - Queue_to_list = fun ({LHS, RHS}) -> {bpqueue:to_list(LHS), RHS} end, - - Queue_to_list(Fold(FF1(FF1A), FF2(FF2A), 0, BPQ)). - -test_simple_n_element_queue(N) -> - Items = lists:seq(1, N), - Q = priority_queue_in_all(priority_queue:new(), Items), - ToListRes = [{0, X} || X <- Items], - {true, false, N, ToListRes, Items} = test_priority_queue(Q), - passed. - -test_unfold() -> - {[], test} = rabbit_misc:unfold(fun (_V) -> false end, test), - List = lists:seq(2,20,2), - {List, 0} = rabbit_misc:unfold(fun (0) -> false; - (N) -> {true, N*2, N-1} - end, 10), - passed. - -test_parsing() -> - passed = test_content_properties(), - passed = test_field_values(), - passed. - -test_content_properties() -> - test_content_prop_roundtrip([], <<0, 0>>), - test_content_prop_roundtrip([{bit, true}, {bit, false}, {bit, true}, {bit, false}], - <<16#A0, 0>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {bit, true}, {octet, undefined}, - {bit, true}], - <<16#E8,0,123>>), - test_content_prop_roundtrip([{bit, true}, {octet, 123}, {octet, 123}, {bit, true}], - <<16#F0,0,123,123>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, <<"hi">>}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#F8,0,2,"hi",16#D4,16#31>>), - test_content_prop_roundtrip([{bit, true}, {shortstr, undefined}, {bit, true}, - {shortint, 54321}, {bit, true}], - <<16#B8,0,16#D4,16#31>>), - test_content_prop_roundtrip([{table, [{<<"a signedint">>, signedint, 12345678}, - {<<"a longstr">>, longstr, <<"yes please">>}, - {<<"a decimal">>, decimal, {123, 12345678}}, - {<<"a timestamp">>, timestamp, 123456789012345}, - {<<"a nested table">>, table, - [{<<"one">>, signedint, 1}, - {<<"two">>, signedint, 2}]}]}], - << - %% property-flags - 16#8000:16, - - %% property-list: - - %% table - 117:32, % table length in bytes - - 11,"a signedint", % name - "I",12345678:32, % type and value - - 9,"a longstr", - "S",10:32,"yes please", - - 9,"a decimal", - "D",123,12345678:32, - - 11,"a timestamp", - "T", 123456789012345:64, - - 14,"a nested table", - "F", - 18:32, - - 3,"one", - "I",1:32, - - 3,"two", - "I",2:32 >>), - case catch rabbit_binary_parser:parse_properties([bit, bit, bit, bit], <<16#A0,0,1>>) of - {'EXIT', content_properties_binary_overflow} -> passed; - V -> exit({got_success_but_expected_failure, V}) - end. - -test_field_values() -> - %% FIXME this does not test inexact numbers (double and float) yet, - %% because they won't pass the equality assertions - test_content_prop_roundtrip( - [{table, [{<<"longstr">>, longstr, <<"Here is a long string">>}, - {<<"signedint">>, signedint, 12345}, - {<<"decimal">>, decimal, {3, 123456}}, - {<<"timestamp">>, timestamp, 109876543209876}, - {<<"table">>, table, [{<<"one">>, signedint, 54321}, - {<<"two">>, longstr, <<"A long string">>}]}, - {<<"byte">>, byte, 255}, - {<<"long">>, long, 1234567890}, - {<<"short">>, short, 655}, - {<<"bool">>, bool, true}, - {<<"binary">>, binary, <<"a binary string">>}, - {<<"void">>, void, undefined}, - {<<"array">>, array, [{signedint, 54321}, - {longstr, <<"A long string">>}]} - - ]}], - << - %% property-flags - 16#8000:16, - %% table length in bytes - 228:32, - - 7,"longstr", "S", 21:32, "Here is a long string", % = 34 - 9,"signedint", "I", 12345:32/signed, % + 15 = 49 - 7,"decimal", "D", 3, 123456:32, % + 14 = 63 - 9,"timestamp", "T", 109876543209876:64, % + 19 = 82 - 5,"table", "F", 31:32, % length of table % + 11 = 93 - 3,"one", "I", 54321:32, % + 9 = 102 - 3,"two", "S", 13:32, "A long string", % + 22 = 124 - 4,"byte", "b", 255:8, % + 7 = 131 - 4,"long", "l", 1234567890:64, % + 14 = 145 - 5,"short", "s", 655:16, % + 9 = 154 - 4,"bool", "t", 1, % + 7 = 161 - 6,"binary", "x", 15:32, "a binary string", % + 27 = 188 - 4,"void", "V", % + 6 = 194 - 5,"array", "A", 23:32, % + 11 = 205 - "I", 54321:32, % + 5 = 210 - "S", 13:32, "A long string" % + 18 = 228 - >>), - passed. - -%% Test that content frames don't exceed frame-max -test_content_framing(FrameMax, BodyBin) -> - [Header | Frames] = - rabbit_binary_generator:build_simple_content_frames( - 1, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, BodyBin), - rabbit_framing_amqp_0_9_1), - FrameMax, - rabbit_framing_amqp_0_9_1), - %% header is formatted correctly and the size is the total of the - %% fragments - <<_FrameHeader:7/binary, _ClassAndWeight:4/binary, - BodySize:64/unsigned, _Rest/binary>> = list_to_binary(Header), - BodySize = size(BodyBin), - true = lists:all( - fun (ContentFrame) -> - FrameBinary = list_to_binary(ContentFrame), - %% assert - <<_TypeAndChannel:3/binary, - Size:32/unsigned, _Payload:Size/binary, 16#CE>> = - FrameBinary, - size(FrameBinary) =< FrameMax - end, Frames), - passed. - -test_content_framing() -> - %% no content - passed = test_content_framing(4096, <<>>), - %% easily fit in one frame - passed = test_content_framing(4096, <<"Easy">>), - %% exactly one frame (empty frame = 8 bytes) - passed = test_content_framing(11, <<"One">>), - %% more than one frame - passed = test_content_framing(11, <<"More than one frame">>), - passed. - -test_content_transcoding() -> - %% there are no guarantees provided by 'clear' - it's just a hint - ClearDecoded = fun rabbit_binary_parser:clear_decoded_content/1, - ClearEncoded = fun rabbit_binary_generator:clear_encoded_content/1, - EnsureDecoded = - fun (C0) -> - C1 = rabbit_binary_parser:ensure_content_decoded(C0), - true = C1#content.properties =/= none, - C1 - end, - EnsureEncoded = - fun (Protocol) -> - fun (C0) -> - C1 = rabbit_binary_generator:ensure_content_encoded( - C0, Protocol), - true = C1#content.properties_bin =/= none, - C1 - end - end, - %% Beyond the assertions in Ensure*, the only testable guarantee - %% is that the operations should never fail. - %% - %% If we were using quickcheck we'd simply stuff all the above - %% into a generator for sequences of operations. In the absence of - %% quickcheck we pick particularly interesting sequences that: - %% - %% - execute every op twice since they are idempotent - %% - invoke clear_decoded, clear_encoded, decode and transcode - %% with one or both of decoded and encoded content present - [begin - sequence_with_content([Op]), - sequence_with_content([ClearEncoded, Op]), - sequence_with_content([ClearDecoded, Op]) - end || Op <- [ClearDecoded, ClearEncoded, EnsureDecoded, - EnsureEncoded(rabbit_framing_amqp_0_9_1), - EnsureEncoded(rabbit_framing_amqp_0_8)]], - passed. - -sequence_with_content(Sequence) -> - lists:foldl(fun (F, V) -> F(F(V)) end, - rabbit_binary_generator:ensure_content_encoded( - rabbit_basic:build_content(#'P_basic'{}, <<>>), - rabbit_framing_amqp_0_9_1), - Sequence). - -test_topic_matching() -> - XName = #resource{virtual_host = <<"/">>, - kind = exchange, - name = <<"test_exchange">>}, - X = #exchange{name = XName, type = topic, durable = false, - auto_delete = false, arguments = []}, - %% create - rabbit_exchange_type_topic:validate(X), - exchange_op_callback(X, create, []), - - %% add some bindings - Bindings = [#binding{source = XName, - key = list_to_binary(Key), - destination = #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)}} || - {Key, Q} <- [{"a.b.c", "t1"}, - {"a.*.c", "t2"}, - {"a.#.b", "t3"}, - {"a.b.b.c", "t4"}, - {"#", "t5"}, - {"#.#", "t6"}, - {"#.b", "t7"}, - {"*.*", "t8"}, - {"a.*", "t9"}, - {"*.b.c", "t10"}, - {"a.#", "t11"}, - {"a.#.#", "t12"}, - {"b.b.c", "t13"}, - {"a.b.b", "t14"}, - {"a.b", "t15"}, - {"b.c", "t16"}, - {"", "t17"}, - {"*.*.*", "t18"}, - {"vodka.martini", "t19"}, - {"a.b.c", "t20"}, - {"*.#", "t21"}, - {"#.*.#", "t22"}, - {"*.#.#", "t23"}, - {"#.#.#", "t24"}, - {"*", "t25"}, - {"#.b.#", "t26"}]], - lists:foreach(fun (B) -> exchange_op_callback(X, add_binding, [B]) end, - Bindings), - - %% test some matches - test_topic_expect_match( - X, [{"a.b.c", ["t1", "t2", "t5", "t6", "t10", "t11", "t12", - "t18", "t20", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b", ["t3", "t5", "t6", "t7", "t8", "t9", "t11", - "t12", "t15", "t21", "t22", "t23", "t24", - "t26"]}, - {"a.b.b", ["t3", "t5", "t6", "t7", "t11", "t12", "t14", - "t18", "t21", "t22", "t23", "t24", "t26"]}, - {"", ["t5", "t6", "t17", "t24"]}, - {"b.c.c", ["t5", "t6", "t18", "t21", "t22", "t23", - "t24", "t26"]}, - {"a.a.a.a.a", ["t5", "t6", "t11", "t12", "t21", "t22", - "t23", "t24"]}, - {"vodka.gin", ["t5", "t6", "t8", "t21", "t22", "t23", - "t24"]}, - {"vodka.martini", ["t5", "t6", "t8", "t19", "t21", "t22", "t23", - "t24"]}, - {"b.b.c", ["t5", "t6", "t10", "t13", "t18", "t21", - "t22", "t23", "t24", "t26"]}, - {"nothing.here.at.all", ["t5", "t6", "t21", "t22", "t23", "t24"]}, - {"oneword", ["t5", "t6", "t21", "t22", "t23", "t24", - "t25"]}]), - - %% remove some bindings - RemovedBindings = [lists:nth(1, Bindings), lists:nth(5, Bindings), - lists:nth(11, Bindings), lists:nth(19, Bindings), - lists:nth(21, Bindings)], - exchange_op_callback(X, remove_bindings, [RemovedBindings]), - RemainingBindings = ordsets:to_list( - ordsets:subtract(ordsets:from_list(Bindings), - ordsets:from_list(RemovedBindings))), - - %% test some matches - test_topic_expect_match( - X, - [{"a.b.c", ["t2", "t6", "t10", "t12", "t18", "t20", "t22", - "t23", "t24", "t26"]}, - {"a.b", ["t3", "t6", "t7", "t8", "t9", "t12", "t15", - "t22", "t23", "t24", "t26"]}, - {"a.b.b", ["t3", "t6", "t7", "t12", "t14", "t18", "t22", - "t23", "t24", "t26"]}, - {"", ["t6", "t17", "t24"]}, - {"b.c.c", ["t6", "t18", "t22", "t23", "t24", "t26"]}, - {"a.a.a.a.a", ["t6", "t12", "t22", "t23", "t24"]}, - {"vodka.gin", ["t6", "t8", "t22", "t23", "t24"]}, - {"vodka.martini", ["t6", "t8", "t22", "t23", "t24"]}, - {"b.b.c", ["t6", "t10", "t13", "t18", "t22", "t23", - "t24", "t26"]}, - {"nothing.here.at.all", ["t6", "t22", "t23", "t24"]}, - {"oneword", ["t6", "t22", "t23", "t24", "t25"]}]), - - %% remove the entire exchange - exchange_op_callback(X, delete, [RemainingBindings]), - %% none should match now - test_topic_expect_match(X, [{"a.b.c", []}, {"b.b.c", []}, {"", []}]), - passed. - -exchange_op_callback(X, Fun, Args) -> - rabbit_misc:execute_mnesia_transaction( - fun () -> rabbit_exchange:callback(X, Fun, [transaction, X] ++ Args) end), - rabbit_exchange:callback(X, Fun, [none, X] ++ Args). - -test_topic_expect_match(X, List) -> - lists:foreach( - fun ({Key, Expected}) -> - BinKey = list_to_binary(Key), - Message = rabbit_basic:message(X#exchange.name, BinKey, - #'P_basic'{}, <<>>), - Res = rabbit_exchange_type_topic:route( - X, #delivery{mandatory = false, - immediate = false, - sender = self(), - message = Message}), - ExpectedRes = lists:map( - fun (Q) -> #resource{virtual_host = <<"/">>, - kind = queue, - name = list_to_binary(Q)} - end, Expected), - true = (lists:usort(ExpectedRes) =:= lists:usort(Res)) - end, List). - -test_app_management() -> - %% starting, stopping, status - ok = control_action(stop_app, []), - ok = control_action(stop_app, []), - ok = control_action(status, []), - ok = control_action(start_app, []), - ok = control_action(start_app, []), - ok = control_action(status, []), - passed. - -test_log_management() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - Suffix = ".1", - - %% prepare basic logs - file:delete([MainLog, Suffix]), - file:delete([SaslLog, Suffix]), - - %% simple logs reopening - ok = control_action(rotate_logs, []), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% simple log rotation - ok = control_action(rotate_logs, [Suffix]), - [true, true] = non_empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - [true, true] = empty_files([MainLog, SaslLog]), - ok = test_logs_working(MainLog, SaslLog), - - %% reopening logs with log rotation performed first - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = file:rename(MainLog, [MainLog, Suffix]), - ok = file:rename(SaslLog, [SaslLog, Suffix]), - ok = test_logs_working([MainLog, Suffix], [SaslLog, Suffix]), - ok = control_action(rotate_logs, []), - ok = test_logs_working(MainLog, SaslLog), - - %% log rotation on empty file - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = control_action(rotate_logs, []), - ok = control_action(rotate_logs, [Suffix]), - [true, true] = empty_files([[MainLog, Suffix], [SaslLog, Suffix]]), - - %% original main log file is not writable - ok = make_files_non_writable([MainLog]), - {error, {cannot_rotate_main_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([MainLog], Suffix), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}]), - - %% original sasl log file is not writable - ok = make_files_non_writable([SaslLog]), - {error, {cannot_rotate_sasl_logs, _}} = control_action(rotate_logs, []), - ok = clean_logs([SaslLog], Suffix), - ok = add_log_handlers([{rabbit_sasl_report_file_h, SaslLog}]), - - %% logs with suffix are not writable - ok = control_action(rotate_logs, [Suffix]), - ok = make_files_non_writable([[MainLog, Suffix], [SaslLog, Suffix]]), - ok = control_action(rotate_logs, [Suffix]), - ok = test_logs_working(MainLog, SaslLog), - - %% original log files are not writable - ok = make_files_non_writable([MainLog, SaslLog]), - {error, {{cannot_rotate_main_logs, _}, - {cannot_rotate_sasl_logs, _}}} = control_action(rotate_logs, []), - - %% logging directed to tty (handlers were removed in last test) - ok = clean_logs([MainLog, SaslLog], Suffix), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = application:set_env(kernel, error_logger, tty), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% rotate logs when logging is turned off - ok = application:set_env(sasl, sasl_error_logger, false), - ok = application:set_env(kernel, error_logger, silent), - ok = control_action(rotate_logs, []), - [{error, enoent}, {error, enoent}] = empty_files([MainLog, SaslLog]), - - %% cleanup - ok = application:set_env(sasl, sasl_error_logger, {file, SaslLog}), - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = add_log_handlers([{rabbit_error_logger_file_h, MainLog}, - {rabbit_sasl_report_file_h, SaslLog}]), - passed. - -test_log_management_during_startup() -> - MainLog = rabbit:log_location(kernel), - SaslLog = rabbit:log_location(sasl), - - %% start application with simple tty logging - ok = control_action(stop_app, []), - ok = application:set_env(kernel, error_logger, tty), - ok = application:set_env(sasl, sasl_error_logger, tty), - ok = add_log_handlers([{error_logger_tty_h, []}, - {sasl_report_tty_h, []}]), - ok = control_action(start_app, []), - - %% start application with tty logging and - %% proper handlers not installed - ok = control_action(stop_app, []), - ok = error_logger:tty(false), - ok = delete_log_handlers([sasl_report_tty_h]), - ok = case catch control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_tty_no_handlers_test}); - {error, {cannot_log_to_tty, _, _}} -> ok - end, - - %% fix sasl logging - ok = application:set_env(sasl, sasl_error_logger, - {file, SaslLog}), - - %% start application with logging to non-existing directory - TmpLog = "/tmp/rabbit-tests/test.log", - delete_file(TmpLog), - ok = application:set_env(kernel, error_logger, {file, TmpLog}), - - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = control_action(start_app, []), - - %% start application with logging to directory with no - %% write permissions - TmpDir = "/tmp/rabbit-tests", - ok = set_permissions(TmpDir, 8#00400), - ok = delete_log_handlers([rabbit_error_logger_file_h]), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotation_no_write_permission_dir_test}); - {error, {cannot_log_to_file, _, _}} -> ok - end, - - %% start application with logging to a subdirectory which - %% parent directory has no write permissions - TmpTestDir = "/tmp/rabbit-tests/no-permission/test/log", - ok = application:set_env(kernel, error_logger, {file, TmpTestDir}), - ok = add_log_handlers([{error_logger_file_h, MainLog}]), - ok = case control_action(start_app, []) of - ok -> exit({got_success_but_expected_failure, - log_rotatation_parent_dirs_test}); - {error, {cannot_log_to_file, _, - {error, {cannot_create_parent_dirs, _, eacces}}}} -> ok - end, - ok = set_permissions(TmpDir, 8#00700), - ok = set_permissions(TmpLog, 8#00600), - ok = delete_file(TmpLog), - ok = file:del_dir(TmpDir), - - %% start application with standard error_logger_file_h - %% handler not installed - ok = application:set_env(kernel, error_logger, {file, MainLog}), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% start application with standard sasl handler not installed - %% and rabbit main log handler installed correctly - ok = delete_log_handlers([rabbit_sasl_report_file_h]), - ok = control_action(start_app, []), - passed. - -test_option_parser() -> - %% command and arguments should just pass through - ok = check_get_options({["mock_command", "arg1", "arg2"], []}, - [], ["mock_command", "arg1", "arg2"]), - - %% get flags - ok = check_get_options( - {["mock_command", "arg1"], [{"-f", true}, {"-f2", false}]}, - [{flag, "-f"}, {flag, "-f2"}], ["mock_command", "arg1", "-f"]), - - %% get options - ok = check_get_options( - {["mock_command"], [{"-foo", "bar"}, {"-baz", "notbaz"}]}, - [{option, "-foo", "notfoo"}, {option, "-baz", "notbaz"}], - ["mock_command", "-foo", "bar"]), - - %% shuffled and interleaved arguments and options - ok = check_get_options( - {["a1", "a2", "a3"], [{"-o1", "hello"}, {"-o2", "noto2"}, {"-f", true}]}, - [{option, "-o1", "noto1"}, {flag, "-f"}, {option, "-o2", "noto2"}], - ["-f", "a1", "-o1", "hello", "a2", "a3"]), - - passed. - -test_cluster_management() -> - %% 'cluster' and 'reset' should only work if the app is stopped - {error, _} = control_action(cluster, []), - {error, _} = control_action(reset, []), - {error, _} = control_action(force_reset, []), - - ok = control_action(stop_app, []), - - %% various ways of creating a standalone node - NodeS = atom_to_list(node()), - ClusteringSequence = [[], - [NodeS], - ["invalid@invalid", NodeS], - [NodeS, "invalid@invalid"]], - - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok - end, - ClusteringSequence), - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - lists:foreach(fun (Arg) -> - ok = control_action(reset, []), - ok = control_action(force_cluster, Arg), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok - end, - ClusteringSequence), - - %% convert a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_disc_node(), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = assert_ram_node(), - - %% join a non-existing cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = assert_ram_node(), - - SecondaryNode = rabbit_misc:makenode("hare"), - case net_adm:ping(SecondaryNode) of - pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", - [SecondaryNode]) - end, - - ok = control_action(start_app, []), - passed. - -test_cluster_management2(SecondaryNode) -> - NodeS = atom_to_list(node()), - SecondaryNodeS = atom_to_list(SecondaryNode), - - %% make a disk node - ok = control_action(reset, []), - ok = control_action(cluster, [NodeS]), - ok = assert_disc_node(), - %% make a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = assert_ram_node(), - - %% join cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, [SecondaryNodeS, "invalid1@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_ram_node(), - - %% change cluster config while remaining in same cluster - ok = control_action(force_cluster, ["invalid2@invalid", SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - - %% join non-existing cluster as a ram node - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_ram_node(), - - %% join empty cluster as a ram node (converts to disc) - ok = control_action(cluster, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_disc_node(), - - %% make a new ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_ram_node(), - - %% turn ram node into disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_disc_node(), - - %% convert a disk node into a ram node - ok = assert_disc_node(), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = assert_ram_node(), - - %% make a new disk node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_disc_node(), - - %% turn a disk node into a ram node - ok = control_action(reset, []), - ok = control_action(cluster, [SecondaryNodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_ram_node(), - - %% NB: this will log an inconsistent_database error, which is harmless - %% Turning cover on / off is OK even if we're not in general using cover, - %% it just turns the engine on / off, doesn't actually log anything. - cover:stop([SecondaryNode]), - true = disconnect_node(SecondaryNode), - pong = net_adm:ping(SecondaryNode), - cover:start([SecondaryNode]), - - %% leaving a cluster as a ram node - ok = control_action(reset, []), - %% ...and as a disk node - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = control_action(reset, []), - - %% attempt to leave cluster when no other node is alive - ok = control_action(cluster, [SecondaryNodeS, NodeS]), - ok = control_action(start_app, []), - ok = control_action(stop_app, SecondaryNode, [], []), - ok = control_action(stop_app, []), - {error, {no_running_cluster_nodes, _, _}} = - control_action(reset, []), - - %% attempt to change type when no other node is alive - {error, {no_running_cluster_nodes, _, _}} = - control_action(cluster, [SecondaryNodeS]), - - %% leave system clustered, with the secondary node as a ram node - ok = control_action(force_reset, []), - ok = control_action(start_app, []), - ok = control_action(force_reset, SecondaryNode, [], []), - ok = control_action(cluster, SecondaryNode, [NodeS], []), - ok = control_action(start_app, SecondaryNode, [], []), - - passed. - -test_user_management() -> - - %% lots if stuff that should fail - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(change_password, ["foo", "baz"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - {error, {no_such_user, _}} = - control_action(set_permissions, ["foo", ".*", ".*", ".*"]), - {error, {no_such_user, _}} = - control_action(clear_permissions, ["foo"]), - {error, {no_such_user, _}} = - control_action(list_user_permissions, ["foo"]), - {error, {no_such_vhost, _}} = - control_action(list_permissions, [], [{"-p", "/testhost"}]), - {error, {invalid_regexp, _, _}} = - control_action(set_permissions, ["guest", "+foo", ".*", ".*"]), - {error, {no_such_user, _}} = - control_action(set_user_tags, ["foo", "bar"]), - - %% user creation - ok = control_action(add_user, ["foo", "bar"]), - {error, {user_already_exists, _}} = - control_action(add_user, ["foo", "bar"]), - ok = control_action(change_password, ["foo", "baz"]), - - TestTags = fun (Tags) -> - Args = ["foo" | [atom_to_list(T) || T <- Tags]], - ok = control_action(set_user_tags, Args), - {ok, #internal_user{tags = Tags}} = - rabbit_auth_backend_internal:lookup_user(<<"foo">>), - ok = control_action(list_users, []) - end, - TestTags([foo, bar, baz]), - TestTags([administrator]), - TestTags([]), - - %% vhost creation - ok = control_action(add_vhost, ["/testhost"]), - {error, {vhost_already_exists, _}} = - control_action(add_vhost, ["/testhost"]), - ok = control_action(list_vhosts, []), - - %% user/vhost mapping - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_permissions, [], [{"-p", "/testhost"}]), - ok = control_action(list_user_permissions, ["foo"]), - - %% user/vhost unmapping - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - ok = control_action(clear_permissions, ["foo"], [{"-p", "/testhost"}]), - - %% vhost deletion - ok = control_action(delete_vhost, ["/testhost"]), - {error, {no_such_vhost, _}} = - control_action(delete_vhost, ["/testhost"]), - - %% deleting a populated vhost - ok = control_action(add_vhost, ["/testhost"]), - ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], - [{"-p", "/testhost"}]), - ok = control_action(delete_vhost, ["/testhost"]), - - %% user deletion - ok = control_action(delete_user, ["foo"]), - {error, {no_such_user, _}} = - control_action(delete_user, ["foo"]), - - passed. - -test_server_status() -> - %% create a few things so there is some useful information to list - Writer = spawn(fun () -> receive shutdown -> ok end end), - {ok, Ch} = rabbit_channel:start_link( - 1, self(), Writer, self(), rabbit_framing_amqp_0_9_1, - user(<<"user">>), <<"/">>, [], self(), - fun (_) -> {ok, self()} end), - [Q, Q2] = [Queue || Name <- [<<"foo">>, <<"bar">>], - {new, Queue = #amqqueue{}} <- - [rabbit_amqqueue:declare( - rabbit_misc:r(<<"/">>, queue, Name), - false, false, [], none)]], - - ok = rabbit_amqqueue:basic_consume(Q, true, Ch, undefined, - <<"ctag">>, true, undefined), - - %% list queues - ok = info_action(list_queues, rabbit_amqqueue:info_keys(), true), - - %% list exchanges - ok = info_action(list_exchanges, rabbit_exchange:info_keys(), true), - - %% list bindings - ok = info_action(list_bindings, rabbit_binding:info_keys(), true), - %% misc binding listing APIs - [_|_] = rabbit_binding:list_for_source( - rabbit_misc:r(<<"/">>, exchange, <<"">>)), - [_] = rabbit_binding:list_for_destination( - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - [_] = rabbit_binding:list_for_source_and_destination( - rabbit_misc:r(<<"/">>, exchange, <<"">>), - rabbit_misc:r(<<"/">>, queue, <<"foo">>)), - - %% list connections - [#listener{host = H, port = P} | _] = - [L || L = #listener{node = N} <- rabbit_networking:active_listeners(), - N =:= node()], - - {ok, _C} = gen_tcp:connect(H, P, []), - timer:sleep(100), - ok = info_action(list_connections, - rabbit_networking:connection_info_keys(), false), - %% close_connection - [ConnPid] = rabbit_networking:connections(), - ok = control_action(close_connection, [rabbit_misc:pid_to_string(ConnPid), - "go away"]), - - %% list channels - ok = info_action(list_channels, rabbit_channel:info_keys(), false), - - %% list consumers - ok = control_action(list_consumers, []), - - %% cleanup - [{ok, _} = rabbit_amqqueue:delete(QR, false, false) || QR <- [Q, Q2]], - - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_writer(Pid) -> - receive - shutdown -> ok; - {send_command, Method} -> Pid ! Method, test_writer(Pid) - end. - -test_spawn() -> - Me = self(), - Writer = spawn(fun () -> test_writer(Me) end), - {ok, Ch} = rabbit_channel:start_link( - 1, Me, Writer, Me, rabbit_framing_amqp_0_9_1, - user(<<"guest">>), <<"/">>, [], self(), - fun (_) -> {ok, self()} end), - ok = rabbit_channel:do(Ch, #'channel.open'{}), - receive #'channel.open_ok'{} -> ok - after 1000 -> throw(failed_to_receive_channel_open_ok) - end, - {Writer, Ch}. - -user(Username) -> - #user{username = Username, - tags = [administrator], - auth_backend = rabbit_auth_backend_internal, - impl = #internal_user{username = Username, - tags = [administrator]}}. - -test_statistics_event_receiver(Pid) -> - receive - Foo -> Pid ! Foo, test_statistics_event_receiver(Pid) - end. - -test_statistics_receive_event(Ch, Matcher) -> - rabbit_channel:flush(Ch), - rabbit_channel:emit_stats(Ch), - test_statistics_receive_event1(Ch, Matcher). - -test_statistics_receive_event1(Ch, Matcher) -> - receive #event{type = channel_stats, props = Props} -> - case Matcher(Props) of - true -> Props; - _ -> test_statistics_receive_event1(Ch, Matcher) - end - after 1000 -> throw(failed_to_receive_event) - end. - -test_confirms() -> - {_Writer, Ch} = test_spawn(), - DeclareBindDurableQueue = - fun() -> - rabbit_channel:do(Ch, #'queue.declare'{durable = true}), - receive #'queue.declare_ok'{queue = Q0} -> - rabbit_channel:do(Ch, #'queue.bind'{ - queue = Q0, - exchange = <<"amq.direct">>, - routing_key = "magic" }), - receive #'queue.bind_ok'{} -> - Q0 - after 1000 -> - throw(failed_to_bind_queue) - end - after 1000 -> - throw(failed_to_declare_queue) - end - end, - %% Declare and bind two queues - QName1 = DeclareBindDurableQueue(), - QName2 = DeclareBindDurableQueue(), - %% Get the first one's pid (we'll crash it later) - {ok, Q1} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName1)), - QPid1 = Q1#amqqueue.pid, - %% Enable confirms - rabbit_channel:do(Ch, #'confirm.select'{}), - receive - #'confirm.select_ok'{} -> ok - after 1000 -> throw(failed_to_enable_confirms) - end, - %% Publish a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"amq.direct">>, - routing_key = "magic" - }, - rabbit_basic:build_content( - #'P_basic'{delivery_mode = 2}, <<"">>)), - %% Crash the queue - QPid1 ! boom, - %% Wait for a nack - receive - #'basic.nack'{} -> ok; - #'basic.ack'{} -> throw(received_ack_instead_of_nack) - after 2000 -> throw(did_not_receive_nack) - end, - receive - #'basic.ack'{} -> throw(received_ack_when_none_expected) - after 1000 -> ok - end, - %% Cleanup - rabbit_channel:do(Ch, #'queue.delete'{queue = QName2}), - receive - #'queue.delete_ok'{} -> ok - after 1000 -> throw(failed_to_cleanup_queue) - end, - unlink(Ch), - ok = rabbit_channel:shutdown(Ch), - - passed. - -test_statistics() -> - application:set_env(rabbit, collect_statistics, fine), - - %% ATM this just tests the queue / exchange stats in channels. That's - %% by far the most complex code though. - - %% Set up a channel and queue - {_Writer, Ch} = test_spawn(), - rabbit_channel:do(Ch, #'queue.declare'{}), - QName = receive #'queue.declare_ok'{queue = Q0} -> - Q0 - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - {ok, Q} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName)), - QPid = Q#amqqueue.pid, - X = rabbit_misc:r(<<"/">>, exchange, <<"">>), - - rabbit_tests_event_receiver:start(self()), - - %% Check stats empty - Event = test_statistics_receive_event(Ch, fun (_) -> true end), - [] = proplists:get_value(channel_queue_stats, Event), - [] = proplists:get_value(channel_exchange_stats, Event), - [] = proplists:get_value(channel_queue_exchange_stats, Event), - - %% Publish and get a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"">>, - routing_key = QName}, - rabbit_basic:build_content(#'P_basic'{}, <<"">>)), - rabbit_channel:do(Ch, #'basic.get'{queue = QName}), - - %% Check the stats reflect that - Event2 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) > 0 - end), - [{QPid,[{get,1}]}] = proplists:get_value(channel_queue_stats, Event2), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event2), - [{{QPid,X},[{publish,1}]}] = - proplists:get_value(channel_queue_exchange_stats, Event2), - - %% Check the stats remove stuff on queue deletion - rabbit_channel:do(Ch, #'queue.delete'{queue = QName}), - Event3 = test_statistics_receive_event( - Ch, - fun (E) -> - length(proplists:get_value( - channel_queue_exchange_stats, E)) == 0 - end), - - [] = proplists:get_value(channel_queue_stats, Event3), - [{X,[{publish,1}]}] = proplists:get_value(channel_exchange_stats, Event3), - [] = proplists:get_value(channel_queue_exchange_stats, Event3), - - rabbit_channel:shutdown(Ch), - rabbit_tests_event_receiver:stop(), - passed. - -test_delegates_async(SecondaryNode) -> - Self = self(), - Sender = fun (Pid) -> Pid ! {invoked, Self} end, - - Responder = make_responder(fun ({invoked, Pid}) -> Pid ! response end), - - ok = delegate:invoke_no_result(spawn(Responder), Sender), - ok = delegate:invoke_no_result(spawn(SecondaryNode, Responder), Sender), - await_response(2), - - LocalPids = spawn_responders(node(), Responder, 10), - RemotePids = spawn_responders(SecondaryNode, Responder, 10), - ok = delegate:invoke_no_result(LocalPids ++ RemotePids, Sender), - await_response(20), - - passed. - -make_responder(FMsg) -> make_responder(FMsg, timeout). -make_responder(FMsg, Throw) -> - fun () -> - receive Msg -> FMsg(Msg) - after 1000 -> throw(Throw) - end - end. - -spawn_responders(Node, Responder, Count) -> - [spawn(Node, Responder) || _ <- lists:seq(1, Count)]. - -await_response(0) -> - ok; -await_response(Count) -> - receive - response -> ok, - await_response(Count - 1) - after 1000 -> - io:format("Async reply not received~n"), - throw(timeout) - end. - -must_exit(Fun) -> - try - Fun(), - throw(exit_not_thrown) - catch - exit:_ -> ok - end. - -test_delegates_sync(SecondaryNode) -> - Sender = fun (Pid) -> gen_server:call(Pid, invoked, infinity) end, - BadSender = fun (_Pid) -> exit(exception) end, - - Responder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end), - - BadResponder = make_responder(fun ({'$gen_call', From, invoked}) -> - gen_server:reply(From, response) - end, bad_responder_died), - - response = delegate:invoke(spawn(Responder), Sender), - response = delegate:invoke(spawn(SecondaryNode, Responder), Sender), - - must_exit(fun () -> delegate:invoke(spawn(BadResponder), BadSender) end), - must_exit(fun () -> - delegate:invoke(spawn(SecondaryNode, BadResponder), BadSender) end), - - LocalGoodPids = spawn_responders(node(), Responder, 2), - RemoteGoodPids = spawn_responders(SecondaryNode, Responder, 2), - LocalBadPids = spawn_responders(node(), BadResponder, 2), - RemoteBadPids = spawn_responders(SecondaryNode, BadResponder, 2), - - {GoodRes, []} = delegate:invoke(LocalGoodPids ++ RemoteGoodPids, Sender), - true = lists:all(fun ({_, response}) -> true end, GoodRes), - GoodResPids = [Pid || {Pid, _} <- GoodRes], - - Good = lists:usort(LocalGoodPids ++ RemoteGoodPids), - Good = lists:usort(GoodResPids), - - {[], BadRes} = delegate:invoke(LocalBadPids ++ RemoteBadPids, BadSender), - true = lists:all(fun ({_, {exit, exception, _}}) -> true end, BadRes), - BadResPids = [Pid || {Pid, _} <- BadRes], - - Bad = lists:usort(LocalBadPids ++ RemoteBadPids), - Bad = lists:usort(BadResPids), - - MagicalPids = [rabbit_misc:string_to_pid(Str) || - Str <- ["", ""]], - {[], BadNodes} = delegate:invoke(MagicalPids, Sender), - true = lists:all( - fun ({_, {exit, {nodedown, nonode@nohost}, _Stack}}) -> true end, - BadNodes), - BadNodesPids = [Pid || {Pid, _} <- BadNodes], - - Magical = lists:usort(MagicalPids), - Magical = lists:usort(BadNodesPids), - - passed. - -test_queue_cleanup(_SecondaryNode) -> - {_Writer, Ch} = test_spawn(), - rabbit_channel:do(Ch, #'queue.declare'{ queue = ?CLEANUP_QUEUE_NAME }), - receive #'queue.declare_ok'{queue = ?CLEANUP_QUEUE_NAME} -> - ok - after 1000 -> throw(failed_to_receive_queue_declare_ok) - end, - rabbit:stop(), - rabbit:start(), - rabbit_channel:do(Ch, #'queue.declare'{ passive = true, - queue = ?CLEANUP_QUEUE_NAME }), - receive - #'channel.close'{reply_code = ?NOT_FOUND} -> - ok - after 2000 -> - throw(failed_to_receive_channel_exit) - end, - passed. - -test_declare_on_dead_queue(SecondaryNode) -> - QueueName = rabbit_misc:r(<<"/">>, queue, ?CLEANUP_QUEUE_NAME), - Self = self(), - Pid = spawn(SecondaryNode, - fun () -> - {new, #amqqueue{name = QueueName, pid = QPid}} = - rabbit_amqqueue:declare(QueueName, false, false, [], - none), - exit(QPid, kill), - Self ! {self(), killed, QPid} - end), - receive - {Pid, killed, QPid} -> - {existing, #amqqueue{name = QueueName, - pid = QPid}} = - rabbit_amqqueue:declare(QueueName, false, false, [], none), - false = rabbit_misc:is_process_alive(QPid), - {new, Q} = rabbit_amqqueue:declare(QueueName, false, false, [], - none), - true = rabbit_misc:is_process_alive(Q#amqqueue.pid), - {ok, 0} = rabbit_amqqueue:delete(Q, false, false), - passed - after 2000 -> - throw(failed_to_create_and_kill_queue) - end. - -%%--------------------------------------------------------------------- - -control_action(Command, Args) -> - control_action(Command, node(), Args, default_options()). - -control_action(Command, Args, NewOpts) -> - control_action(Command, node(), Args, - expand_options(default_options(), NewOpts)). - -control_action(Command, Node, Args, Opts) -> - case catch rabbit_control:action( - Command, Node, Args, Opts, - fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end) of - ok -> - io:format("done.~n"), - ok; - Other -> - io:format("failed.~n"), - Other - end. - -info_action(Command, Args, CheckVHost) -> - ok = control_action(Command, []), - if CheckVHost -> ok = control_action(Command, []); - true -> ok - end, - ok = control_action(Command, lists:map(fun atom_to_list/1, Args)), - {bad_argument, dummy} = control_action(Command, ["dummy"]), - ok. - -default_options() -> [{"-p", "/"}, {"-q", "false"}]. - -expand_options(As, Bs) -> - lists:foldl(fun({K, _}=A, R) -> - case proplists:is_defined(K, R) of - true -> R; - false -> [A | R] - end - end, Bs, As). - -check_get_options({ExpArgs, ExpOpts}, Defs, Args) -> - {ExpArgs, ResOpts} = rabbit_misc:get_options(Defs, Args), - true = lists:sort(ExpOpts) == lists:sort(ResOpts), % don't care about the order - ok. - -empty_files(Files) -> - [case file:read_file_info(File) of - {ok, FInfo} -> FInfo#file_info.size == 0; - Error -> Error - end || File <- Files]. - -non_empty_files(Files) -> - [case EmptyFile of - {error, Reason} -> {error, Reason}; - _ -> not(EmptyFile) - end || EmptyFile <- empty_files(Files)]. - -test_logs_working(MainLogFile, SaslLogFile) -> - ok = rabbit_log:error("foo bar"), - ok = error_logger:error_report(crash_report, [foo, bar]), - %% give the error loggers some time to catch up - timer:sleep(100), - [true, true] = non_empty_files([MainLogFile, SaslLogFile]), - ok. - -set_permissions(Path, Mode) -> - case file:read_file_info(Path) of - {ok, FInfo} -> file:write_file_info( - Path, - FInfo#file_info{mode=Mode}); - Error -> Error - end. - -clean_logs(Files, Suffix) -> - [begin - ok = delete_file(File), - ok = delete_file([File, Suffix]) - end || File <- Files], - ok. - -assert_ram_node() -> - case rabbit_mnesia:is_disc_node() of - true -> exit('not_ram_node'); - false -> ok - end. - -assert_disc_node() -> - case rabbit_mnesia:is_disc_node() of - true -> ok; - false -> exit('not_disc_node') - end. - -delete_file(File) -> - case file:delete(File) of - ok -> ok; - {error, enoent} -> ok; - Error -> Error - end. - -make_files_non_writable(Files) -> - [ok = file:write_file_info(File, #file_info{mode=0}) || - File <- Files], - ok. - -add_log_handlers(Handlers) -> - [ok = error_logger:add_report_handler(Handler, Args) || - {Handler, Args} <- Handlers], - ok. - -delete_log_handlers(Handlers) -> - [[] = error_logger:delete_report_handler(Handler) || - Handler <- Handlers], - ok. - -test_supervisor_delayed_restart() -> - test_sup:test_supervisor_delayed_restart(). - -test_file_handle_cache() -> - %% test copying when there is just one spare handle - Limit = file_handle_cache:get_limit(), - ok = file_handle_cache:set_limit(5), %% 1 or 2 sockets, 2 msg_stores - TmpDir = filename:join(rabbit_mnesia:dir(), "tmp"), - ok = filelib:ensure_dir(filename:join(TmpDir, "nothing")), - [Src1, Dst1, Src2, Dst2] = Files = - [filename:join(TmpDir, Str) || Str <- ["file1", "file2", "file3", "file4"]], - Content = <<"foo">>, - CopyFun = fun (Src, Dst) -> - ok = rabbit_misc:write_file(Src, Content), - {ok, SrcHdl} = file_handle_cache:open(Src, [read], []), - {ok, DstHdl} = file_handle_cache:open(Dst, [write], []), - Size = size(Content), - {ok, Size} = file_handle_cache:copy(SrcHdl, DstHdl, Size), - ok = file_handle_cache:delete(SrcHdl), - ok = file_handle_cache:delete(DstHdl) - end, - Pid = spawn(fun () -> {ok, Hdl} = file_handle_cache:open( - filename:join(TmpDir, "file5"), - [write], []), - receive {next, Pid1} -> Pid1 ! {next, self()} end, - file_handle_cache:delete(Hdl), - %% This will block and never return, so we - %% exercise the fhc tidying up the pending - %% queue on the death of a process. - ok = CopyFun(Src1, Dst1) - end), - ok = CopyFun(Src1, Dst1), - ok = file_handle_cache:set_limit(2), - Pid ! {next, self()}, - receive {next, Pid} -> ok end, - timer:sleep(100), - Pid1 = spawn(fun () -> CopyFun(Src2, Dst2) end), - timer:sleep(100), - erlang:monitor(process, Pid), - erlang:monitor(process, Pid1), - exit(Pid, kill), - exit(Pid1, kill), - receive {'DOWN', _MRef, process, Pid, _Reason} -> ok end, - receive {'DOWN', _MRef1, process, Pid1, _Reason1} -> ok end, - [file:delete(File) || File <- Files], - ok = file_handle_cache:set_limit(Limit), - passed. - -test_backing_queue() -> - case application:get_env(rabbit, backing_queue_module) of - {ok, rabbit_variable_queue} -> - {ok, FileSizeLimit} = - application:get_env(rabbit, msg_store_file_size_limit), - application:set_env(rabbit, msg_store_file_size_limit, 512, - infinity), - {ok, MaxJournal} = - application:get_env(rabbit, queue_index_max_journal_entries), - application:set_env(rabbit, queue_index_max_journal_entries, 128, - infinity), - passed = test_msg_store(), - application:set_env(rabbit, msg_store_file_size_limit, - FileSizeLimit, infinity), - passed = test_queue_index(), - passed = test_queue_index_props(), - passed = test_variable_queue(), - passed = test_variable_queue_delete_msg_store_files_callback(), - passed = test_queue_recover(), - application:set_env(rabbit, queue_index_max_journal_entries, - MaxJournal, infinity), - %% We will have restarted the message store, and thus changed - %% the order of the children of rabbit_sup. This will cause - %% problems if there are subsequent failures - see bug 24262. - ok = restart_app(), - passed; - _ -> - passed - end. - -restart_msg_store_empty() -> - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - undefined, {fun (ok) -> finished end, ok}). - -msg_id_bin(X) -> - erlang:md5(term_to_binary(X)). - -msg_store_client_init(MsgStore, Ref) -> - rabbit_msg_store:client_init(MsgStore, Ref, undefined, undefined). - -msg_store_contains(Atom, MsgIds, MSCState) -> - Atom = lists:foldl( - fun (MsgId, Atom1) when Atom1 =:= Atom -> - rabbit_msg_store:contains(MsgId, MSCState) end, - Atom, MsgIds). - -msg_store_sync(MsgIds, MSCState) -> - Ref = make_ref(), - Self = self(), - ok = rabbit_msg_store:sync(MsgIds, fun () -> Self ! {sync, Ref} end, - MSCState), - receive - {sync, Ref} -> ok - after - 10000 -> - io:format("Sync from msg_store missing for msg_ids ~p~n", [MsgIds]), - throw(timeout) - end. - -msg_store_read(MsgIds, MSCState) -> - lists:foldl(fun (MsgId, MSCStateM) -> - {{ok, MsgId}, MSCStateN} = rabbit_msg_store:read( - MsgId, MSCStateM), - MSCStateN - end, MSCState, MsgIds). - -msg_store_write(MsgIds, MSCState) -> - ok = lists:foldl(fun (MsgId, ok) -> - rabbit_msg_store:write(MsgId, MsgId, MSCState) - end, ok, MsgIds). - -msg_store_remove(MsgIds, MSCState) -> - rabbit_msg_store:remove(MsgIds, MSCState). - -msg_store_remove(MsgStore, Ref, MsgIds) -> - with_msg_store_client(MsgStore, Ref, - fun (MSCStateM) -> - ok = msg_store_remove(MsgIds, MSCStateM), - MSCStateM - end). - -with_msg_store_client(MsgStore, Ref, Fun) -> - rabbit_msg_store:client_terminate( - Fun(msg_store_client_init(MsgStore, Ref))). - -foreach_with_msg_store_client(MsgStore, Ref, Fun, L) -> - rabbit_msg_store:client_terminate( - lists:foldl(fun (MsgId, MSCState) -> Fun(MsgId, MSCState) end, - msg_store_client_init(MsgStore, Ref), L)). - -test_msg_store() -> - restart_msg_store_empty(), - Self = self(), - MsgIds = [msg_id_bin(M) || M <- lists:seq(1,100)], - {MsgIds1stHalf, MsgIds2ndHalf} = lists:split(50, MsgIds), - Ref = rabbit_guid:guid(), - MSCState = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs we're about to publish - false = msg_store_contains(false, MsgIds, MSCState), - %% publish the first half - ok = msg_store_write(MsgIds1stHalf, MSCState), - %% sync on the first half - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% publish the second half - ok = msg_store_write(MsgIds2ndHalf, MSCState), - %% sync on the first half again - the msg_store will be dirty, but - %% we won't need the fsync - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% check they're all in there - true = msg_store_contains(true, MsgIds, MSCState), - %% publish the latter half twice so we hit the caching and ref count code - ok = msg_store_write(MsgIds2ndHalf, MSCState), - %% check they're still all in there - true = msg_store_contains(true, MsgIds, MSCState), - %% sync on the 2nd half, but do lots of individual syncs to try - %% and cause coalescing to happen - ok = lists:foldl( - fun (MsgId, ok) -> rabbit_msg_store:sync( - [MsgId], fun () -> Self ! {sync, MsgId} end, - MSCState) - end, ok, MsgIds2ndHalf), - lists:foldl( - fun(MsgId, ok) -> - receive - {sync, MsgId} -> ok - after - 10000 -> - io:format("Sync from msg_store missing (msg_id: ~p)~n", - [MsgId]), - throw(timeout) - end - end, ok, MsgIds2ndHalf), - %% it's very likely we're not dirty here, so the 1st half sync - %% should hit a different code path - ok = msg_store_sync(MsgIds1stHalf, MSCState), - %% read them all - MSCState1 = msg_store_read(MsgIds, MSCState), - %% read them all again - this will hit the cache, not disk - MSCState2 = msg_store_read(MsgIds, MSCState1), - %% remove them all - ok = rabbit_msg_store:remove(MsgIds, MSCState2), - %% check first half doesn't exist - false = msg_store_contains(false, MsgIds1stHalf, MSCState2), - %% check second half does exist - true = msg_store_contains(true, MsgIds2ndHalf, MSCState2), - %% read the second half again - MSCState3 = msg_store_read(MsgIds2ndHalf, MSCState2), - %% read the second half again, just for fun (aka code coverage) - MSCState4 = msg_store_read(MsgIds2ndHalf, MSCState3), - ok = rabbit_msg_store:client_terminate(MSCState4), - %% stop and restart, preserving every other msg in 2nd half - ok = rabbit_variable_queue:stop_msg_store(), - ok = rabbit_variable_queue:start_msg_store( - [], {fun ([]) -> finished; - ([MsgId|MsgIdsTail]) - when length(MsgIdsTail) rem 2 == 0 -> - {MsgId, 1, MsgIdsTail}; - ([MsgId|MsgIdsTail]) -> - {MsgId, 0, MsgIdsTail} - end, MsgIds2ndHalf}), - MSCState5 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we have the right msgs left - lists:foldl( - fun (MsgId, Bool) -> - not(Bool = rabbit_msg_store:contains(MsgId, MSCState5)) - end, false, MsgIds2ndHalf), - ok = rabbit_msg_store:client_terminate(MSCState5), - %% restart empty - restart_msg_store_empty(), - MSCState6 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - %% check we don't contain any of the msgs - false = msg_store_contains(false, MsgIds, MSCState6), - %% publish the first half again - ok = msg_store_write(MsgIds1stHalf, MSCState6), - %% this should force some sort of sync internally otherwise misread - ok = rabbit_msg_store:client_terminate( - msg_store_read(MsgIds1stHalf, MSCState6)), - MSCState7 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), - ok = rabbit_msg_store:remove(MsgIds1stHalf, MSCState7), - ok = rabbit_msg_store:client_terminate(MSCState7), - %% restart empty - restart_msg_store_empty(), %% now safe to reuse msg_ids - %% push a lot of msgs in... at least 100 files worth - {ok, FileSize} = application:get_env(rabbit, msg_store_file_size_limit), - PayloadSizeBits = 65536, - BigCount = trunc(100 * FileSize / (PayloadSizeBits div 8)), - MsgIdsBig = [msg_id_bin(X) || X <- lists:seq(1, BigCount)], - Payload = << 0:PayloadSizeBits >>, - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - [ok = rabbit_msg_store:write(MsgId, Payload, MSCStateM) || - MsgId <- MsgIdsBig], - MSCStateM - end), - %% now read them to ensure we hit the fast client-side reading - ok = foreach_with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MsgId, MSCStateM) -> - {{ok, Payload}, MSCStateN} = rabbit_msg_store:read( - MsgId, MSCStateM), - MSCStateN - end, MsgIdsBig), - %% .., then 3s by 1... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount, 1, -3)]), - %% .., then remove 3s by 2, from the young end first. This hits - %% GC (under 50% good data left, but no empty files. Must GC). - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount-1, 1, -3)]), - %% .., then remove 3s by 3, from the young end first. This hits - %% GC... - ok = msg_store_remove(?PERSISTENT_MSG_STORE, Ref, - [msg_id_bin(X) || X <- lists:seq(BigCount-2, 1, -3)]), - %% ensure empty - ok = with_msg_store_client( - ?PERSISTENT_MSG_STORE, Ref, - fun (MSCStateM) -> - false = msg_store_contains(false, MsgIdsBig, MSCStateM), - MSCStateM - end), - %% restart empty - restart_msg_store_empty(), - passed. - -queue_name(Name) -> - rabbit_misc:r(<<"/">>, queue, Name). - -test_queue() -> - queue_name(<<"test">>). - -init_test_queue() -> - TestQueue = test_queue(), - Terms = rabbit_queue_index:shutdown_terms(TestQueue), - PRef = proplists:get_value(persistent_ref, Terms, rabbit_guid:guid()), - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef), - Res = rabbit_queue_index:recover( - TestQueue, Terms, false, - fun (MsgId) -> - rabbit_msg_store:contains(MsgId, PersistentClient) - end, - fun nop/1), - ok = rabbit_msg_store:client_delete_and_terminate(PersistentClient), - Res. - -restart_test_queue(Qi) -> - _ = rabbit_queue_index:terminate([], Qi), - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([test_queue()]), - init_test_queue(). - -empty_test_queue() -> - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - {0, Qi} = init_test_queue(), - _ = rabbit_queue_index:delete_and_terminate(Qi), - ok. - -with_empty_test_queue(Fun) -> - ok = empty_test_queue(), - {0, Qi} = init_test_queue(), - rabbit_queue_index:delete_and_terminate(Fun(Qi)). - -restart_app() -> - rabbit:stop(), - rabbit:start(). - -queue_index_publish(SeqIds, Persistent, Qi) -> - Ref = rabbit_guid:guid(), - MsgStore = case Persistent of - true -> ?PERSISTENT_MSG_STORE; - false -> ?TRANSIENT_MSG_STORE - end, - MSCState = msg_store_client_init(MsgStore, Ref), - {A, B = [{_SeqId, LastMsgIdWritten} | _]} = - lists:foldl( - fun (SeqId, {QiN, SeqIdsMsgIdsAcc}) -> - MsgId = rabbit_guid:guid(), - QiM = rabbit_queue_index:publish( - MsgId, SeqId, #message_properties{}, Persistent, QiN), - ok = rabbit_msg_store:write(MsgId, MsgId, MSCState), - {QiM, [{SeqId, MsgId} | SeqIdsMsgIdsAcc]} - end, {Qi, []}, SeqIds), - %% do this just to force all of the publishes through to the msg_store: - true = rabbit_msg_store:contains(LastMsgIdWritten, MSCState), - ok = rabbit_msg_store:client_delete_and_terminate(MSCState), - {A, B}. - -verify_read_with_published(_Delivered, _Persistent, [], _) -> - ok; -verify_read_with_published(Delivered, Persistent, - [{MsgId, SeqId, _Props, Persistent, Delivered}|Read], - [{SeqId, MsgId}|Published]) -> - verify_read_with_published(Delivered, Persistent, Read, Published); -verify_read_with_published(_Delivered, _Persistent, _Read, _Published) -> - ko. - -test_queue_index_props() -> - with_empty_test_queue( - fun(Qi0) -> - MsgId = rabbit_guid:guid(), - Props = #message_properties{expiry=12345}, - Qi1 = rabbit_queue_index:publish(MsgId, 1, Props, true, Qi0), - {[{MsgId, 1, Props, _, _}], Qi2} = - rabbit_queue_index:read(1, 2, Qi1), - Qi2 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -test_queue_index() -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - TwoSegs = SegmentSize + SegmentSize, - MostOfASegment = trunc(SegmentSize*0.75), - SeqIdsA = lists:seq(0, MostOfASegment-1), - SeqIdsB = lists:seq(MostOfASegment, 2*MostOfASegment), - SeqIdsC = lists:seq(0, trunc(SegmentSize/2)), - SeqIdsD = lists:seq(0, SegmentSize*4), - - with_empty_test_queue( - fun (Qi0) -> - {0, 0, Qi1} = rabbit_queue_index:bounds(Qi0), - {Qi2, SeqIdsMsgIdsA} = queue_index_publish(SeqIdsA, false, Qi1), - {0, SegmentSize, Qi3} = rabbit_queue_index:bounds(Qi2), - {ReadA, Qi4} = rabbit_queue_index:read(0, SegmentSize, Qi3), - ok = verify_read_with_published(false, false, ReadA, - lists:reverse(SeqIdsMsgIdsA)), - %% should get length back as 0, as all the msgs were transient - {0, Qi6} = restart_test_queue(Qi4), - {0, 0, Qi7} = rabbit_queue_index:bounds(Qi6), - {Qi8, SeqIdsMsgIdsB} = queue_index_publish(SeqIdsB, true, Qi7), - {0, TwoSegs, Qi9} = rabbit_queue_index:bounds(Qi8), - {ReadB, Qi10} = rabbit_queue_index:read(0, SegmentSize, Qi9), - ok = verify_read_with_published(false, true, ReadB, - lists:reverse(SeqIdsMsgIdsB)), - %% should get length back as MostOfASegment - LenB = length(SeqIdsB), - {LenB, Qi12} = restart_test_queue(Qi10), - {0, TwoSegs, Qi13} = rabbit_queue_index:bounds(Qi12), - Qi14 = rabbit_queue_index:deliver(SeqIdsB, Qi13), - {ReadC, Qi15} = rabbit_queue_index:read(0, SegmentSize, Qi14), - ok = verify_read_with_published(true, true, ReadC, - lists:reverse(SeqIdsMsgIdsB)), - Qi16 = rabbit_queue_index:ack(SeqIdsB, Qi15), - Qi17 = rabbit_queue_index:flush(Qi16), - %% Everything will have gone now because #pubs == #acks - {0, 0, Qi18} = rabbit_queue_index:bounds(Qi17), - %% should get length back as 0 because all persistent - %% msgs have been acked - {0, Qi19} = restart_test_queue(Qi18), - Qi19 - end), - - %% These next bits are just to hit the auto deletion of segment files. - %% First, partials: - %% a) partial pub+del+ack, then move to new segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsC} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsC, Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, _SeqIdsMsgIdsC1} = queue_index_publish([SegmentSize], - false, Qi4), - Qi5 - end), - - %% b) partial pub+del, then move to new segment, then ack all in old segment - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsC2} = queue_index_publish(SeqIdsC, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsC, Qi1), - {Qi3, _SeqIdsMsgIdsC3} = queue_index_publish([SegmentSize], - false, Qi2), - Qi4 = rabbit_queue_index:ack(SeqIdsC, Qi3), - rabbit_queue_index:flush(Qi4) - end), - - %% c) just fill up several segments of all pubs, then +dels, then +acks - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsD} = queue_index_publish(SeqIdsD, - false, Qi0), - Qi2 = rabbit_queue_index:deliver(SeqIdsD, Qi1), - Qi3 = rabbit_queue_index:ack(SeqIdsD, Qi2), - rabbit_queue_index:flush(Qi3) - end), - - %% d) get messages in all states to a segment, then flush, then do - %% the same again, don't flush and read. This will hit all - %% possibilities in combining the segment with the journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, [Seven,Five,Four|_]} = queue_index_publish([0,1,2,4,5,7], - false, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - Qi4 = rabbit_queue_index:flush(Qi3), - {Qi5, [Eight,Six|_]} = queue_index_publish([3,6,8], false, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {[], Qi8} = rabbit_queue_index:read(0, 4, Qi7), - {ReadD, Qi9} = rabbit_queue_index:read(4, 7, Qi8), - ok = verify_read_with_published(true, false, ReadD, - [Four, Five, Six]), - {ReadE, Qi10} = rabbit_queue_index:read(7, 9, Qi9), - ok = verify_read_with_published(false, false, ReadE, - [Seven, Eight]), - Qi10 - end), - - %% e) as for (d), but use terminate instead of read, which will - %% exercise journal_minus_segment, not segment_plus_journal. - with_empty_test_queue( - fun (Qi0) -> - {Qi1, _SeqIdsMsgIdsE} = queue_index_publish([0,1,2,4,5,7], - true, Qi0), - Qi2 = rabbit_queue_index:deliver([0,1,4], Qi1), - Qi3 = rabbit_queue_index:ack([0], Qi2), - {5, Qi4} = restart_test_queue(Qi3), - {Qi5, _SeqIdsMsgIdsF} = queue_index_publish([3,6,8], true, Qi4), - Qi6 = rabbit_queue_index:deliver([2,3,5,6], Qi5), - Qi7 = rabbit_queue_index:ack([1,2,3], Qi6), - {5, Qi8} = restart_test_queue(Qi7), - Qi8 - end), - - ok = rabbit_variable_queue:stop(), - ok = rabbit_variable_queue:start([]), - - passed. - -variable_queue_init(Q, Recover) -> - rabbit_variable_queue:init( - Q, Recover, fun nop/2, fun nop/2, fun nop/1). - -variable_queue_publish(IsPersistent, Count, VQ) -> - variable_queue_publish(IsPersistent, Count, fun (_N, P) -> P end, VQ). - -variable_queue_publish(IsPersistent, Count, PropFun, VQ) -> - lists:foldl( - fun (N, VQN) -> - rabbit_variable_queue:publish( - rabbit_basic:message( - rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = case IsPersistent of - true -> 2; - false -> 1 - end}, <<>>), - PropFun(N, #message_properties{}), self(), VQN) - end, VQ, lists:seq(1, Count)). - -variable_queue_fetch(Count, IsPersistent, IsDelivered, Len, VQ) -> - lists:foldl(fun (N, {VQN, AckTagsAcc}) -> - Rem = Len - N, - {{#basic_message { is_persistent = IsPersistent }, - IsDelivered, AckTagN, Rem}, VQM} = - rabbit_variable_queue:fetch(true, VQN), - {VQM, [AckTagN | AckTagsAcc]} - end, {VQ, []}, lists:seq(1, Count)). - -assert_prop(List, Prop, Value) -> - Value = proplists:get_value(Prop, List). - -assert_props(List, PropVals) -> - [assert_prop(List, Prop, Value) || {Prop, Value} <- PropVals]. - -test_amqqueue(Durable) -> - (rabbit_amqqueue:pseudo_queue(test_queue(), self())) - #amqqueue { durable = Durable }. - -with_fresh_variable_queue(Fun) -> - ok = empty_test_queue(), - VQ = variable_queue_init(test_amqqueue(true), false), - S0 = rabbit_variable_queue:status(VQ), - assert_props(S0, [{q1, 0}, {q2, 0}, - {delta, {delta, undefined, 0, undefined}}, - {q3, 0}, {q4, 0}, - {len, 0}]), - _ = rabbit_variable_queue:delete_and_terminate(shutdown, Fun(VQ)), - passed. - -publish_and_confirm(QPid, Payload, Count) -> - Seqs = lists:seq(1, Count), - [begin - Msg = rabbit_basic:message(rabbit_misc:r(<<>>, exchange, <<>>), - <<>>, #'P_basic'{delivery_mode = 2}, - Payload), - Delivery = #delivery{mandatory = false, immediate = false, - sender = self(), message = Msg, msg_seq_no = Seq}, - true = rabbit_amqqueue:deliver(QPid, Delivery) - end || Seq <- Seqs], - wait_for_confirms(gb_sets:from_list(Seqs)). - -wait_for_confirms(Unconfirmed) -> - case gb_sets:is_empty(Unconfirmed) of - true -> ok; - false -> receive {'$gen_cast', {confirm, Confirmed, _}} -> - wait_for_confirms( - gb_sets:difference(Unconfirmed, - gb_sets:from_list(Confirmed))) - after 5000 -> exit(timeout_waiting_for_confirm) - end - end. - -test_variable_queue() -> - [passed = with_fresh_variable_queue(F) || - F <- [fun test_variable_queue_dynamic_duration_change/1, - fun test_variable_queue_partial_segments_delta_thing/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere1/1, - fun test_variable_queue_all_the_bits_not_covered_elsewhere2/1, - fun test_dropwhile/1, - fun test_dropwhile_varying_ram_duration/1, - fun test_variable_queue_ack_limiting/1]], - passed. - -test_variable_queue_ack_limiting(VQ0) -> - %% start by sending in a bunch of messages - Len = 1024, - VQ1 = variable_queue_publish(false, Len, VQ0), - - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - %% update stats for duration - {_Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - - %% fetch half the messages - {VQ4, _AckTags} = variable_queue_fetch(Len div 2, false, false, Len, VQ3), - - VQ5 = check_variable_queue_status(VQ4, [{len , Len div 2}, - {ram_ack_count, Len div 2}, - {ram_msg_count, Len div 2}]), - - %% ensure all acks go to disk on 0 duration target - VQ6 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ5), - [{len, Len div 2}, - {target_ram_count, 0}, - {ram_msg_count, 0}, - {ram_ack_count, 0}]), - - VQ6. - -test_dropwhile(VQ0) -> - Count = 10, - - %% add messages with sequential expiry - VQ1 = variable_queue_publish( - false, Count, - fun (N, Props) -> Props#message_properties{expiry = N} end, VQ0), - - %% drop the first 5 messages - VQ2 = rabbit_variable_queue:dropwhile( - fun(#message_properties { expiry = Expiry }) -> - Expiry =< 5 - end, VQ1), - - %% fetch five now - VQ3 = lists:foldl(fun (_N, VQN) -> - {{#basic_message{}, _, _, _}, VQM} = - rabbit_variable_queue:fetch(false, VQN), - VQM - end, VQ2, lists:seq(6, Count)), - - %% should be empty now - {empty, VQ4} = rabbit_variable_queue:fetch(false, VQ3), - - VQ4. - -test_dropwhile_varying_ram_duration(VQ0) -> - VQ1 = variable_queue_publish(false, 1, VQ0), - VQ2 = rabbit_variable_queue:set_ram_duration_target(0, VQ1), - VQ3 = rabbit_variable_queue:dropwhile(fun(_) -> false end, VQ2), - VQ4 = rabbit_variable_queue:set_ram_duration_target(infinity, VQ3), - VQ5 = variable_queue_publish(false, 1, VQ4), - rabbit_variable_queue:dropwhile(fun(_) -> false end, VQ5). - -test_variable_queue_dynamic_duration_change(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - - %% start by sending in a couple of segments worth - Len = 2*SegmentSize, - VQ1 = variable_queue_publish(false, Len, VQ0), - %% squeeze and relax queue - Churn = Len div 32, - VQ2 = publish_fetch_and_ack(Churn, Len, VQ1), - - {Duration, VQ3} = rabbit_variable_queue:ram_duration(VQ2), - VQ7 = lists:foldl( - fun (Duration1, VQ4) -> - {_Duration, VQ5} = rabbit_variable_queue:ram_duration(VQ4), - io:format("~p:~n~p~n", - [Duration1, rabbit_variable_queue:status(VQ5)]), - VQ6 = rabbit_variable_queue:set_ram_duration_target( - Duration1, VQ5), - publish_fetch_and_ack(Churn, Len, VQ6) - end, VQ3, [Duration / 4, 0, Duration / 4, infinity]), - - %% drain - {VQ8, AckTags} = variable_queue_fetch(Len, false, false, Len, VQ7), - {_Guids, VQ9} = rabbit_variable_queue:ack(AckTags, VQ8), - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - - VQ10. - -publish_fetch_and_ack(0, _Len, VQ0) -> - VQ0; -publish_fetch_and_ack(N, Len, VQ0) -> - VQ1 = variable_queue_publish(false, 1, VQ0), - {{_Msg, false, AckTag, Len}, VQ2} = rabbit_variable_queue:fetch(true, VQ1), - {_Guids, VQ3} = rabbit_variable_queue:ack([AckTag], VQ2), - publish_fetch_and_ack(N-1, Len, VQ3). - -test_variable_queue_partial_segments_delta_thing(VQ0) -> - SegmentSize = rabbit_queue_index:next_segment_boundary(0), - HalfSegment = SegmentSize div 2, - OneAndAHalfSegment = SegmentSize + HalfSegment, - VQ1 = variable_queue_publish(true, OneAndAHalfSegment, VQ0), - {_Duration, VQ2} = rabbit_variable_queue:ram_duration(VQ1), - VQ3 = check_variable_queue_status( - rabbit_variable_queue:set_ram_duration_target(0, VQ2), - %% one segment in q3 as betas, and half a segment in delta - [{delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment}]), - VQ4 = rabbit_variable_queue:set_ram_duration_target(infinity, VQ3), - VQ5 = check_variable_queue_status( - variable_queue_publish(true, 1, VQ4), - %% one alpha, but it's in the same segment as the deltas - [{q1, 1}, - {delta, {delta, SegmentSize, HalfSegment, OneAndAHalfSegment}}, - {q3, SegmentSize}, - {len, SegmentSize + HalfSegment + 1}]), - {VQ6, AckTags} = variable_queue_fetch(SegmentSize, true, false, - SegmentSize + HalfSegment + 1, VQ5), - VQ7 = check_variable_queue_status( - VQ6, - %% the half segment should now be in q3 as betas - [{q1, 1}, - {delta, {delta, undefined, 0, undefined}}, - {q3, HalfSegment}, - {len, HalfSegment + 1}]), - {VQ8, AckTags1} = variable_queue_fetch(HalfSegment + 1, true, false, - HalfSegment + 1, VQ7), - {_Guids, VQ9} = rabbit_variable_queue:ack(AckTags ++ AckTags1, VQ8), - %% should be empty now - {empty, VQ10} = rabbit_variable_queue:fetch(true, VQ9), - VQ10. - -check_variable_queue_status(VQ0, Props) -> - VQ1 = variable_queue_wait_for_shuffling_end(VQ0), - S = rabbit_variable_queue:status(VQ1), - io:format("~p~n", [S]), - assert_props(S, Props), - VQ1. - -variable_queue_wait_for_shuffling_end(VQ) -> - case rabbit_variable_queue:needs_timeout(VQ) of - false -> VQ; - _ -> variable_queue_wait_for_shuffling_end( - rabbit_variable_queue:timeout(VQ)) - end. - -test_variable_queue_all_the_bits_not_covered_elsewhere1(VQ0) -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - VQ1 = variable_queue_publish(true, Count, VQ0), - VQ2 = variable_queue_publish(false, Count, VQ1), - VQ3 = rabbit_variable_queue:set_ram_duration_target(0, VQ2), - {VQ4, _AckTags} = variable_queue_fetch(Count, true, false, - Count + Count, VQ3), - {VQ5, _AckTags1} = variable_queue_fetch(Count, false, false, - Count, VQ4), - _VQ6 = rabbit_variable_queue:terminate(shutdown, VQ5), - VQ7 = variable_queue_init(test_amqqueue(true), true), - {{_Msg1, true, _AckTag1, Count1}, VQ8} = - rabbit_variable_queue:fetch(true, VQ7), - VQ9 = variable_queue_publish(false, 1, VQ8), - VQ10 = rabbit_variable_queue:set_ram_duration_target(0, VQ9), - {VQ11, _AckTags2} = variable_queue_fetch(Count1, true, true, Count, VQ10), - {VQ12, _AckTags3} = variable_queue_fetch(1, false, false, 1, VQ11), - VQ12. - -test_variable_queue_all_the_bits_not_covered_elsewhere2(VQ0) -> - VQ1 = rabbit_variable_queue:set_ram_duration_target(0, VQ0), - VQ2 = variable_queue_publish(false, 4, VQ1), - {VQ3, AckTags} = variable_queue_fetch(2, false, false, 4, VQ2), - {_Guids, VQ4} = - rabbit_variable_queue:requeue(AckTags, fun(X) -> X end, VQ3), - VQ5 = rabbit_variable_queue:timeout(VQ4), - _VQ6 = rabbit_variable_queue:terminate(shutdown, VQ5), - VQ7 = variable_queue_init(test_amqqueue(true), true), - {empty, VQ8} = rabbit_variable_queue:fetch(false, VQ7), - VQ8. - -test_queue_recover() -> - Count = 2 * rabbit_queue_index:next_segment_boundary(0), - {new, #amqqueue { pid = QPid, name = QName } = Q} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - publish_and_confirm(QPid, <<>>, Count), - - exit(QPid, kill), - MRef = erlang:monitor(process, QPid), - receive {'DOWN', MRef, process, QPid, _Info} -> ok - after 10000 -> exit(timeout_waiting_for_queue_death) - end, - rabbit_amqqueue:stop(), - rabbit_amqqueue:start(), - rabbit_amqqueue:with_or_die( - QName, - fun (Q1 = #amqqueue { pid = QPid1 }) -> - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid1, _AckTag, true, _Msg}} = - rabbit_amqqueue:basic_get(Q1, self(), false), - exit(QPid1, shutdown), - VQ1 = variable_queue_init(Q, true), - {{_Msg1, true, _AckTag1, CountMinusOne}, VQ2} = - rabbit_variable_queue:fetch(true, VQ1), - _VQ3 = rabbit_variable_queue:delete_and_terminate(shutdown, VQ2), - rabbit_amqqueue:internal_delete(QName) - end), - passed. - -test_variable_queue_delete_msg_store_files_callback() -> - ok = restart_msg_store_empty(), - {new, #amqqueue { pid = QPid, name = QName } = Q} = - rabbit_amqqueue:declare(test_queue(), true, false, [], none), - Payload = <<0:8388608>>, %% 1MB - Count = 30, - publish_and_confirm(QPid, Payload, Count), - - rabbit_amqqueue:set_ram_duration_target(QPid, 0), - - CountMinusOne = Count - 1, - {ok, CountMinusOne, {QName, QPid, _AckTag, false, _Msg}} = - rabbit_amqqueue:basic_get(Q, self(), true), - {ok, CountMinusOne} = rabbit_amqqueue:purge(Q), - - %% give the queue a second to receive the close_fds callback msg - timer:sleep(1000), - - rabbit_amqqueue:delete(Q, false, false), - passed. - -test_configurable_server_properties() -> - %% List of the names of the built-in properties do we expect to find - BuiltInPropNames = [<<"product">>, <<"version">>, <<"platform">>, - <<"copyright">>, <<"information">>], - - Protocol = rabbit_framing_amqp_0_9_1, - - %% Verify that the built-in properties are initially present - ActualPropNames = [Key || {Key, longstr, _} <- - rabbit_reader:server_properties(Protocol)], - true = lists:all(fun (X) -> lists:member(X, ActualPropNames) end, - BuiltInPropNames), - - %% Get the initial server properties configured in the environment - {ok, ServerProperties} = application:get_env(rabbit, server_properties), - - %% Helper functions - ConsProp = fun (X) -> application:set_env(rabbit, - server_properties, - [X | ServerProperties]) end, - IsPropPresent = - fun (X) -> - lists:member(X, rabbit_reader:server_properties(Protocol)) - end, - - %% Add a wholly new property of the simplified {KeyAtom, StringValue} form - NewSimplifiedProperty = {NewHareKey, NewHareVal} = {hare, "soup"}, - ConsProp(NewSimplifiedProperty), - %% Do we find hare soup, appropriately formatted in the generated properties? - ExpectedHareImage = {list_to_binary(atom_to_list(NewHareKey)), - longstr, - list_to_binary(NewHareVal)}, - true = IsPropPresent(ExpectedHareImage), - - %% Add a wholly new property of the {BinaryKey, Type, Value} form - %% and check for it - NewProperty = {<<"new-bin-key">>, signedint, -1}, - ConsProp(NewProperty), - %% Do we find the new property? - true = IsPropPresent(NewProperty), - - %% Add a property that clobbers a built-in, and verify correct clobbering - {NewVerKey, NewVerVal} = NewVersion = {version, "X.Y.Z."}, - {BinNewVerKey, BinNewVerVal} = {list_to_binary(atom_to_list(NewVerKey)), - list_to_binary(NewVerVal)}, - ConsProp(NewVersion), - ClobberedServerProps = rabbit_reader:server_properties(Protocol), - %% Is the clobbering insert present? - true = IsPropPresent({BinNewVerKey, longstr, BinNewVerVal}), - %% Is the clobbering insert the only thing with the clobbering key? - [{BinNewVerKey, longstr, BinNewVerVal}] = - [E || {K, longstr, _V} = E <- ClobberedServerProps, K =:= BinNewVerKey], - - application:set_env(rabbit, server_properties, ServerProperties), - passed. - -nop(_) -> ok. -nop(_, _) -> ok. diff --git a/src/rabbit_tests_event_receiver.erl b/src/rabbit_tests_event_receiver.erl deleted file mode 100644 index 12c43faf..00000000 --- a/src/rabbit_tests_event_receiver.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_tests_event_receiver). - --export([start/1, stop/0]). - --export([init/1, handle_call/2, handle_event/2, handle_info/2, - terminate/2, code_change/3]). - -start(Pid) -> - gen_event:add_handler(rabbit_event, ?MODULE, [Pid]). - -stop() -> - gen_event:delete_handler(rabbit_event, ?MODULE, []). - -%%---------------------------------------------------------------------------- - -init([Pid]) -> - {ok, Pid}. - -handle_call(_Request, Pid) -> - {ok, not_understood, Pid}. - -handle_event(Event, Pid) -> - Pid ! Event, - {ok, Pid}. - -handle_info(_Info, Pid) -> - {ok, Pid}. - -terminate(_Arg, _Pid) -> - ok. - -code_change(_OldVsn, Pid, _Extra) -> - {ok, Pid}. - -%%---------------------------------------------------------------------------- diff --git a/src/rabbit_trace.erl b/src/rabbit_trace.erl deleted file mode 100644 index 7d36856a..00000000 --- a/src/rabbit_trace.erl +++ /dev/null @@ -1,120 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_trace). - --export([init/1, tracing/1, tap_trace_in/2, tap_trace_out/2, start/1, stop/1]). - --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --define(TRACE_VHOSTS, trace_vhosts). --define(XNAME, <<"amq.rabbitmq.trace">>). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --type(state() :: rabbit_types:exchange() | 'none'). - --spec(init/1 :: (rabbit_types:vhost()) -> state()). --spec(tracing/1 :: (rabbit_types:vhost()) -> boolean()). --spec(tap_trace_in/2 :: (rabbit_types:basic_message(), state()) -> 'ok'). --spec(tap_trace_out/2 :: (rabbit_amqqueue:qmsg(), state()) -> 'ok'). - --spec(start/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(stop/1 :: (rabbit_types:vhost()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -init(VHost) -> - case tracing(VHost) of - false -> none; - true -> {ok, X} = rabbit_exchange:lookup( - rabbit_misc:r(VHost, exchange, ?XNAME)), - X - end. - -tracing(VHost) -> - {ok, VHosts} = application:get_env(rabbit, ?TRACE_VHOSTS), - lists:member(VHost, VHosts). - -tap_trace_in(Msg = #basic_message{exchange_name = #resource{name = XName}}, - TraceX) -> - maybe_trace(TraceX, Msg, <<"publish">>, XName, []). - -tap_trace_out({#resource{name = QName}, _QPid, _QMsgId, Redelivered, Msg}, - TraceX) -> - RedeliveredNum = case Redelivered of true -> 1; false -> 0 end, - maybe_trace(TraceX, Msg, <<"deliver">>, QName, - [{<<"redelivered">>, signedint, RedeliveredNum}]). - -%%---------------------------------------------------------------------------- - -start(VHost) -> - update_config(fun (VHosts) -> [VHost | VHosts -- [VHost]] end). - -stop(VHost) -> - update_config(fun (VHosts) -> VHosts -- [VHost] end). - -update_config(Fun) -> - {ok, VHosts0} = application:get_env(rabbit, ?TRACE_VHOSTS), - VHosts = Fun(VHosts0), - application:set_env(rabbit, ?TRACE_VHOSTS, VHosts), - rabbit_channel:refresh_config_all(), - ok. - -%%---------------------------------------------------------------------------- - -maybe_trace(none, _Msg, _RKPrefix, _RKSuffix, _Extra) -> - ok; -maybe_trace(#exchange{name = Name}, #basic_message{exchange_name = Name}, - _RKPrefix, _RKSuffix, _Extra) -> - ok; -maybe_trace(X, Msg = #basic_message{content = #content{ - payload_fragments_rev = PFR}}, - RKPrefix, RKSuffix, Extra) -> - {ok, _, _} = rabbit_basic:publish( - X, <>, - #'P_basic'{headers = msg_to_table(Msg) ++ Extra}, PFR), - ok. - -msg_to_table(#basic_message{exchange_name = #resource{name = XName}, - routing_keys = RoutingKeys, - content = Content}) -> - #content{properties = Props} = - rabbit_binary_parser:ensure_content_decoded(Content), - {PropsTable, _Ix} = - lists:foldl(fun (K, {L, Ix}) -> - V = element(Ix, Props), - NewL = case V of - undefined -> L; - _ -> [{a2b(K), type(V), V} | L] - end, - {NewL, Ix + 1} - end, {[], 2}, record_info(fields, 'P_basic')), - [{<<"exchange_name">>, longstr, XName}, - {<<"routing_keys">>, array, [{longstr, K} || K <- RoutingKeys]}, - {<<"properties">>, table, PropsTable}, - {<<"node">>, longstr, a2b(node())}]. - -a2b(A) -> list_to_binary(atom_to_list(A)). - -type(V) when is_list(V) -> table; -type(V) when is_integer(V) -> signedint; -type(_V) -> longstr. diff --git a/src/rabbit_types.erl b/src/rabbit_types.erl deleted file mode 100644 index 2db960ac..00000000 --- a/src/rabbit_types.erl +++ /dev/null @@ -1,159 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_types). - --include("rabbit.hrl"). - --ifdef(use_specs). - --export_type([maybe/1, info/0, infos/0, info_key/0, info_keys/0, - message/0, msg_id/0, basic_message/0, - delivery/0, content/0, decoded_content/0, undecoded_content/0, - unencoded_content/0, encoded_content/0, message_properties/0, - vhost/0, ctag/0, amqp_error/0, r/1, r2/2, r3/3, listener/0, - binding/0, binding_source/0, binding_destination/0, - amqqueue/0, exchange/0, - connection/0, protocol/0, user/0, internal_user/0, - username/0, password/0, password_hash/0, ok/1, error/1, - ok_or_error/1, ok_or_error2/2, ok_pid_or_error/0, channel_exit/0, - connection_exit/0]). - --type(channel_exit() :: no_return()). --type(connection_exit() :: no_return()). - --type(maybe(T) :: T | 'none'). --type(vhost() :: binary()). --type(ctag() :: binary()). - -%% TODO: make this more precise by tying specific class_ids to -%% specific properties --type(undecoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: 'none', - properties_bin :: binary(), - payload_fragments_rev :: [binary()]} | - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: 'none', - payload_fragments_rev :: [binary()]}). --type(unencoded_content() :: undecoded_content()). --type(decoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: rabbit_framing:amqp_property_record(), - properties_bin :: maybe(binary()), - payload_fragments_rev :: [binary()]}). --type(encoded_content() :: - #content{class_id :: rabbit_framing:amqp_class_id(), - properties :: maybe(rabbit_framing:amqp_property_record()), - properties_bin :: binary(), - payload_fragments_rev :: [binary()]}). --type(content() :: undecoded_content() | decoded_content()). --type(msg_id() :: rabbit_guid:guid()). --type(basic_message() :: - #basic_message{exchange_name :: rabbit_exchange:name(), - routing_keys :: [rabbit_router:routing_key()], - content :: content(), - id :: msg_id(), - is_persistent :: boolean()}). --type(message() :: basic_message()). --type(delivery() :: - #delivery{mandatory :: boolean(), - immediate :: boolean(), - sender :: pid(), - message :: message()}). --type(message_properties() :: - #message_properties{expiry :: pos_integer() | 'undefined', - needs_confirming :: boolean()}). - --type(info_key() :: atom()). --type(info_keys() :: [info_key()]). - --type(info() :: {info_key(), any()}). --type(infos() :: [info()]). - --type(amqp_error() :: - #amqp_error{name :: rabbit_framing:amqp_exception(), - explanation :: string(), - method :: rabbit_framing:amqp_method_name()}). - --type(r(Kind) :: - r2(vhost(), Kind)). --type(r2(VirtualHost, Kind) :: - r3(VirtualHost, Kind, rabbit_misc:resource_name())). --type(r3(VirtualHost, Kind, Name) :: - #resource{virtual_host :: VirtualHost, - kind :: Kind, - name :: Name}). - --type(listener() :: - #listener{node :: node(), - protocol :: atom(), - host :: rabbit_networking:hostname(), - port :: rabbit_networking:ip_port()}). - --type(binding_source() :: rabbit_exchange:name()). --type(binding_destination() :: rabbit_amqqueue:name() | rabbit_exchange:name()). - --type(binding() :: - #binding{source :: rabbit_exchange:name(), - destination :: binding_destination(), - key :: rabbit_binding:key(), - args :: rabbit_framing:amqp_table()}). - --type(amqqueue() :: - #amqqueue{name :: rabbit_amqqueue:name(), - durable :: boolean(), - auto_delete :: boolean(), - exclusive_owner :: rabbit_types:maybe(pid()), - arguments :: rabbit_framing:amqp_table(), - pid :: rabbit_types:maybe(pid()), - slave_pids :: [pid()], - mirror_nodes :: [node()] | 'undefined' | 'all'}). - --type(exchange() :: - #exchange{name :: rabbit_exchange:name(), - type :: rabbit_exchange:type(), - durable :: boolean(), - auto_delete :: boolean(), - arguments :: rabbit_framing:amqp_table()}). - --type(connection() :: pid()). - --type(protocol() :: rabbit_framing:protocol()). - --type(user() :: - #user{username :: username(), - tags :: [atom()], - auth_backend :: atom(), - impl :: any()}). - --type(internal_user() :: - #internal_user{username :: username(), - password_hash :: password_hash(), - tags :: [atom()]}). - --type(username() :: binary()). --type(password() :: binary()). --type(password_hash() :: binary()). - --type(ok(A) :: {'ok', A}). --type(error(A) :: {'error', A}). --type(ok_or_error(A) :: 'ok' | error(A)). --type(ok_or_error2(A, B) :: ok(A) | error(B)). --type(ok_pid_or_error() :: ok_or_error2(pid(), any())). - --endif. % use_specs diff --git a/src/rabbit_upgrade.erl b/src/rabbit_upgrade.erl deleted file mode 100644 index 9739f6b7..00000000 --- a/src/rabbit_upgrade.erl +++ /dev/null @@ -1,289 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade). - --export([maybe_upgrade_mnesia/0, maybe_upgrade_local/0]). - --include("rabbit.hrl"). - --define(VERSION_FILENAME, "schema_version"). --define(LOCK_FILENAME, "schema_upgrade_lock"). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --spec(maybe_upgrade_mnesia/0 :: () -> 'ok'). --spec(maybe_upgrade_local/0 :: () -> 'ok' | 'version_not_available'). - --endif. - -%% ------------------------------------------------------------------- - -%% The upgrade logic is quite involved, due to the existence of -%% clusters. -%% -%% Firstly, we have two different types of upgrades to do: Mnesia and -%% everythinq else. Mnesia upgrades must only be done by one node in -%% the cluster (we treat a non-clustered node as a single-node -%% cluster). This is the primary upgrader. The other upgrades need to -%% be done by all nodes. -%% -%% The primary upgrader has to start first (and do its Mnesia -%% upgrades). Secondary upgraders need to reset their Mnesia database -%% and then rejoin the cluster. They can't do the Mnesia upgrades as -%% well and then merge databases since the cookie for each table will -%% end up different and the merge will fail. -%% -%% This in turn means that we need to determine whether we are the -%% primary or secondary upgrader *before* Mnesia comes up. If we -%% didn't then the secondary upgrader would try to start Mnesia, and -%% either hang waiting for a node which is not yet up, or fail since -%% its schema differs from the other nodes in the cluster. -%% -%% Also, the primary upgrader needs to start Mnesia to do its -%% upgrades, but needs to forcibly load tables rather than wait for -%% them (in case it was not the last node to shut down, in which case -%% it would wait forever). -%% -%% This in turn means that maybe_upgrade_mnesia/0 has to be patched -%% into the boot process by prelaunch before the mnesia application is -%% started. By the time Mnesia is started the upgrades have happened -%% (on the primary), or Mnesia has been reset (on the secondary) and -%% rabbit_mnesia:init_db/3 can then make the node rejoin the cluster -%% in the normal way. -%% -%% The non-mnesia upgrades are then triggered by -%% rabbit_mnesia:init_db/3. Of course, it's possible for a given -%% upgrade process to only require Mnesia upgrades, or only require -%% non-Mnesia upgrades. In the latter case no Mnesia resets and -%% reclusterings occur. -%% -%% The primary upgrader needs to be a disc node. Ideally we would like -%% it to be the last disc node to shut down (since otherwise there's a -%% risk of data loss). On each node we therefore record the disc nodes -%% that were still running when we shut down. A disc node that knows -%% other nodes were up when it shut down, or a ram node, will refuse -%% to be the primary upgrader, and will thus not start when upgrades -%% are needed. -%% -%% However, this is racy if several nodes are shut down at once. Since -%% rabbit records the running nodes, and shuts down before mnesia, the -%% race manifests as all disc nodes thinking they are not the primary -%% upgrader. Therefore the user can remove the record of the last disc -%% node to shut down to get things going again. This may lose any -%% mnesia changes that happened after the node chosen as the primary -%% upgrader was shut down. - -%% ------------------------------------------------------------------- - -ensure_backup_taken() -> - case filelib:is_file(lock_filename()) of - false -> case filelib:is_dir(backup_dir()) of - false -> ok = take_backup(); - _ -> ok - end; - true -> throw({error, previous_upgrade_failed}) - end. - -take_backup() -> - BackupDir = backup_dir(), - case rabbit_mnesia:copy_db(BackupDir) of - ok -> info("upgrades: Mnesia dir backed up to ~p~n", - [BackupDir]); - {error, E} -> throw({could_not_back_up_mnesia_dir, E}) - end. - -ensure_backup_removed() -> - case filelib:is_dir(backup_dir()) of - true -> ok = remove_backup(); - _ -> ok - end. - -remove_backup() -> - ok = rabbit_misc:recursive_delete([backup_dir()]), - info("upgrades: Mnesia backup removed~n", []). - -maybe_upgrade_mnesia() -> - AllNodes = rabbit_mnesia:all_clustered_nodes(), - case rabbit_version:upgrades_required(mnesia) of - {error, version_not_available} -> - case AllNodes of - [_] -> ok; - _ -> die("Cluster upgrade needed but upgrading from " - "< 2.1.1.~nUnfortunately you will need to " - "rebuild the cluster.", []) - end; - {error, _} = Err -> - throw(Err); - {ok, []} -> - ok; - {ok, Upgrades} -> - ensure_backup_taken(), - ok = case upgrade_mode(AllNodes) of - primary -> primary_upgrade(Upgrades, AllNodes); - secondary -> secondary_upgrade(AllNodes) - end - end. - -upgrade_mode(AllNodes) -> - case nodes_running(AllNodes) of - [] -> - AfterUs = rabbit_mnesia:read_previously_running_nodes(), - case {is_disc_node_legacy(), AfterUs} of - {true, []} -> - primary; - {true, _} -> - Filename = rabbit_mnesia:running_nodes_filename(), - die("Cluster upgrade needed but other disc nodes shut " - "down after this one.~nPlease first start the last " - "disc node to shut down.~n~nNote: if several disc " - "nodes were shut down simultaneously they may " - "all~nshow this message. In which case, remove " - "the lock file on one of them and~nstart that node. " - "The lock file on this node is:~n~n ~s ", [Filename]); - {false, _} -> - die("Cluster upgrade needed but this is a ram node.~n" - "Please first start the last disc node to shut down.", - []) - end; - [Another|_] -> - MyVersion = rabbit_version:desired_for_scope(mnesia), - ErrFun = fun (ClusterVersion) -> - %% The other node(s) are running an - %% unexpected version. - die("Cluster upgrade needed but other nodes are " - "running ~p~nand I want ~p", - [ClusterVersion, MyVersion]) - end, - case rpc:call(Another, rabbit_version, desired_for_scope, - [mnesia]) of - {badrpc, {'EXIT', {undef, _}}} -> ErrFun(unknown_old_version); - {badrpc, Reason} -> ErrFun({unknown, Reason}); - CV -> case rabbit_version:matches( - MyVersion, CV) of - true -> secondary; - false -> ErrFun(CV) - end - end - end. - -die(Msg, Args) -> - %% We don't throw or exit here since that gets thrown - %% straight out into do_boot, generating an erl_crash.dump - %% and displaying any error message in a confusing way. - error_logger:error_msg(Msg, Args), - io:format("~n~n****~n~n" ++ Msg ++ "~n~n****~n~n~n", Args), - error_logger:logfile(close), - halt(1). - -primary_upgrade(Upgrades, Nodes) -> - Others = Nodes -- [node()], - ok = apply_upgrades( - mnesia, - Upgrades, - fun () -> - force_tables(), - case Others of - [] -> ok; - _ -> info("mnesia upgrades: Breaking cluster~n", []), - [{atomic, ok} = mnesia:del_table_copy(schema, Node) - || Node <- Others] - end - end), - ok. - -force_tables() -> - [mnesia:force_load_table(T) || T <- rabbit_mnesia:table_names()]. - -secondary_upgrade(AllNodes) -> - %% must do this before we wipe out schema - IsDiscNode = is_disc_node_legacy(), - rabbit_misc:ensure_ok(mnesia:delete_schema([node()]), - cannot_delete_schema), - %% Note that we cluster with all nodes, rather than all disc nodes - %% (as we can't know all disc nodes at this point). This is safe as - %% we're not writing the cluster config, just setting up Mnesia. - ClusterNodes = case IsDiscNode of - true -> AllNodes; - false -> AllNodes -- [node()] - end, - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok = rabbit_mnesia:init_db(ClusterNodes, true, fun () -> ok end), - ok = rabbit_version:record_desired_for_scope(mnesia), - ok. - -nodes_running(Nodes) -> - [N || N <- Nodes, node_running(N)]. - -node_running(Node) -> - case rpc:call(Node, application, which_applications, []) of - {badrpc, _} -> false; - Apps -> lists:keysearch(rabbit, 1, Apps) =/= false - end. - -%% ------------------------------------------------------------------- - -maybe_upgrade_local() -> - case rabbit_version:upgrades_required(local) of - {error, version_not_available} -> version_not_available; - {error, _} = Err -> throw(Err); - {ok, []} -> ensure_backup_removed(), - ok; - {ok, Upgrades} -> mnesia:stop(), - ensure_backup_taken(), - ok = apply_upgrades(local, Upgrades, - fun () -> ok end), - ensure_backup_removed(), - ok - end. - -%% ------------------------------------------------------------------- - -apply_upgrades(Scope, Upgrades, Fun) -> - ok = rabbit_misc:lock_file(lock_filename()), - info("~s upgrades: ~w to apply~n", [Scope, length(Upgrades)]), - rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - Fun(), - [apply_upgrade(Scope, Upgrade) || Upgrade <- Upgrades], - info("~s upgrades: All upgrades applied successfully~n", [Scope]), - ok = rabbit_version:record_desired_for_scope(Scope), - ok = file:delete(lock_filename()). - -apply_upgrade(Scope, {M, F}) -> - info("~s upgrades: Applying ~w:~w~n", [Scope, M, F]), - ok = apply(M, F, []). - -%% ------------------------------------------------------------------- - -dir() -> rabbit_mnesia:dir(). - -lock_filename() -> lock_filename(dir()). -lock_filename(Dir) -> filename:join(Dir, ?LOCK_FILENAME). -backup_dir() -> dir() ++ "-upgrade-backup". - -is_disc_node_legacy() -> - %% This is pretty ugly but we can't start Mnesia and ask it (will - %% hang), we can't look at the config file (may not include us - %% even if we're a disc node). We also can't use - %% rabbit_mnesia:is_disc_node/0 because that will give false - %% postivies on Rabbit up to 2.5.1. - filelib:is_regular(filename:join(dir(), "rabbit_durable_exchange.DCD")). - -%% NB: we cannot use rabbit_log here since it may not have been -%% started yet -info(Msg, Args) -> error_logger:info_msg(Msg, Args). diff --git a/src/rabbit_upgrade_functions.erl b/src/rabbit_upgrade_functions.erl deleted file mode 100644 index 8d26866b..00000000 --- a/src/rabbit_upgrade_functions.erl +++ /dev/null @@ -1,197 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_upgrade_functions). - -%% If you are tempted to add include("rabbit.hrl"). here, don't. Using record -%% defs here leads to pain later. - --compile([export_all]). - --rabbit_upgrade({remove_user_scope, mnesia, []}). --rabbit_upgrade({hash_passwords, mnesia, []}). --rabbit_upgrade({add_ip_to_listener, mnesia, []}). --rabbit_upgrade({internal_exchanges, mnesia, []}). --rabbit_upgrade({user_to_internal_user, mnesia, [hash_passwords]}). --rabbit_upgrade({topic_trie, mnesia, []}). --rabbit_upgrade({semi_durable_route, mnesia, []}). --rabbit_upgrade({exchange_event_serial, mnesia, []}). --rabbit_upgrade({trace_exchanges, mnesia, [internal_exchanges]}). --rabbit_upgrade({user_admin_to_tags, mnesia, [user_to_internal_user]}). --rabbit_upgrade({ha_mirrors, mnesia, []}). --rabbit_upgrade({gm, mnesia, []}). --rabbit_upgrade({exchange_scratch, mnesia, [trace_exchanges]}). - -%% ------------------------------------------------------------------- - --ifdef(use_specs). - --spec(remove_user_scope/0 :: () -> 'ok'). --spec(hash_passwords/0 :: () -> 'ok'). --spec(add_ip_to_listener/0 :: () -> 'ok'). --spec(internal_exchanges/0 :: () -> 'ok'). --spec(user_to_internal_user/0 :: () -> 'ok'). --spec(topic_trie/0 :: () -> 'ok'). --spec(semi_durable_route/0 :: () -> 'ok'). --spec(exchange_event_serial/0 :: () -> 'ok'). --spec(trace_exchanges/0 :: () -> 'ok'). --spec(user_admin_to_tags/0 :: () -> 'ok'). --spec(ha_mirrors/0 :: () -> 'ok'). --spec(gm/0 :: () -> 'ok'). --spec(exchange_scratch/0 :: () -> 'ok'). - --endif. - -%%-------------------------------------------------------------------- - -%% It's a bad idea to use records or record_info here, even for the -%% destination form. Because in the future, the destination form of -%% your current transform may not match the record any more, and it -%% would be messy to have to go back and fix old transforms at that -%% point. - -remove_user_scope() -> - transform( - rabbit_user_permission, - fun ({user_permission, UV, {permission, _Scope, Conf, Write, Read}}) -> - {user_permission, UV, {permission, Conf, Write, Read}} - end, - [user_vhost, permission]). - -hash_passwords() -> - transform( - rabbit_user, - fun ({user, Username, Password, IsAdmin}) -> - Hash = rabbit_auth_backend_internal:hash_password(Password), - {user, Username, Hash, IsAdmin} - end, - [username, password_hash, is_admin]). - -add_ip_to_listener() -> - transform( - rabbit_listener, - fun ({listener, Node, Protocol, Host, Port}) -> - {listener, Node, Protocol, Host, {0,0,0,0}, Port} - end, - [node, protocol, host, ip_address, port]). - -internal_exchanges() -> - Tables = [rabbit_exchange, rabbit_durable_exchange], - AddInternalFun = - fun ({exchange, Name, Type, Durable, AutoDelete, Args}) -> - {exchange, Name, Type, Durable, AutoDelete, false, Args} - end, - [ ok = transform(T, - AddInternalFun, - [name, type, durable, auto_delete, internal, arguments]) - || T <- Tables ], - ok. - -user_to_internal_user() -> - transform( - rabbit_user, - fun({user, Username, PasswordHash, IsAdmin}) -> - {internal_user, Username, PasswordHash, IsAdmin} - end, - [username, password_hash, is_admin], internal_user). - -topic_trie() -> - create(rabbit_topic_trie_edge, [{record_name, topic_trie_edge}, - {attributes, [trie_edge, node_id]}, - {type, ordered_set}]), - create(rabbit_topic_trie_binding, [{record_name, topic_trie_binding}, - {attributes, [trie_binding, value]}, - {type, ordered_set}]). - -semi_durable_route() -> - create(rabbit_semi_durable_route, [{record_name, route}, - {attributes, [binding, value]}]). - -exchange_event_serial() -> - create(rabbit_exchange_serial, [{record_name, exchange_serial}, - {attributes, [name, next]}]). - -trace_exchanges() -> - [declare_exchange( - rabbit_misc:r(VHost, exchange, <<"amq.rabbitmq.trace">>), topic) || - VHost <- rabbit_vhost:list()], - ok. - -user_admin_to_tags() -> - transform( - rabbit_user, - fun({internal_user, Username, PasswordHash, true}) -> - {internal_user, Username, PasswordHash, [administrator]}; - ({internal_user, Username, PasswordHash, false}) -> - {internal_user, Username, PasswordHash, [management]} - end, - [username, password_hash, tags], internal_user). - -ha_mirrors() -> - Tables = [rabbit_queue, rabbit_durable_queue], - AddMirrorPidsFun = - fun ({amqqueue, Name, Durable, AutoDelete, Owner, Arguments, Pid}) -> - {amqqueue, Name, Durable, AutoDelete, Owner, Arguments, Pid, - [], undefined} - end, - [ ok = transform(T, - AddMirrorPidsFun, - [name, durable, auto_delete, exclusive_owner, arguments, - pid, slave_pids, mirror_nodes]) - || T <- Tables ], - ok. - -gm() -> - create(gm_group, [{record_name, gm_group}, - {attributes, [name, version, members]}]). - -exchange_scratch() -> - ok = exchange_scratch(rabbit_exchange), - ok = exchange_scratch(rabbit_durable_exchange). - -exchange_scratch(Table) -> - transform( - Table, - fun ({exchange, Name, Type, Dur, AutoDel, Int, Args}) -> - {exchange, Name, Type, Dur, AutoDel, Int, Args, undefined} - end, - [name, type, durable, auto_delete, internal, arguments, scratch]). - -%%-------------------------------------------------------------------- - -transform(TableName, Fun, FieldList) -> - rabbit_mnesia:wait_for_tables([TableName]), - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList), - ok. - -transform(TableName, Fun, FieldList, NewRecordName) -> - rabbit_mnesia:wait_for_tables([TableName]), - {atomic, ok} = mnesia:transform_table(TableName, Fun, FieldList, - NewRecordName), - ok. - -create(Tab, TabDef) -> - {atomic, ok} = mnesia:create_table(Tab, TabDef), - ok. - -%% Dumb replacement for rabbit_exchange:declare that does not require -%% the exchange type registry or worker pool to be running by dint of -%% not validating anything and assuming the exchange type does not -%% require serialisation. -%% NB: this assumes the pre-exchange-scratch-space format -declare_exchange(XName, Type) -> - X = {exchange, XName, Type, true, false, false, []}, - ok = mnesia:dirty_write(rabbit_durable_exchange, X). diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl deleted file mode 100644 index ea72de66..00000000 --- a/src/rabbit_variable_queue.erl +++ /dev/null @@ -1,1686 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_variable_queue). - --export([init/3, terminate/2, delete_and_terminate/2, - purge/1, publish/4, publish_delivered/5, drain_confirmed/1, - dropwhile/2, fetch/2, ack/2, requeue/3, len/1, is_empty/1, - set_ram_duration_target/2, ram_duration/1, - needs_timeout/1, timeout/1, handle_pre_hibernate/1, - status/1, invoke/3, is_duplicate/2, discard/3, - multiple_routing_keys/0]). - --export([start/1, stop/0]). - -%% exported for testing only --export([start_msg_store/2, stop_msg_store/0, init/5]). - -%%---------------------------------------------------------------------------- -%% Definitions: - -%% alpha: this is a message where both the message itself, and its -%% position within the queue are held in RAM -%% -%% beta: this is a message where the message itself is only held on -%% disk, but its position within the queue is held in RAM. -%% -%% gamma: this is a message where the message itself is only held on -%% disk, but its position is both in RAM and on disk. -%% -%% delta: this is a collection of messages, represented by a single -%% term, where the messages and their position are only held on -%% disk. -%% -%% Note that for persistent messages, the message and its position -%% within the queue are always held on disk, *in addition* to being in -%% one of the above classifications. -%% -%% Also note that within this code, the term gamma never -%% appears. Instead, gammas are defined by betas who have had their -%% queue position recorded on disk. -%% -%% In general, messages move q1 -> q2 -> delta -> q3 -> q4, though -%% many of these steps are frequently skipped. q1 and q4 only hold -%% alphas, q2 and q3 hold both betas and gammas (as queues of queues, -%% using the bpqueue module where the block prefix determines whether -%% they're betas or gammas). When a message arrives, its -%% classification is determined. It is then added to the rightmost -%% appropriate queue. -%% -%% If a new message is determined to be a beta or gamma, q1 is -%% empty. If a new message is determined to be a delta, q1 and q2 are -%% empty (and actually q4 too). -%% -%% When removing messages from a queue, if q4 is empty then q3 is read -%% directly. If q3 becomes empty then the next segment's worth of -%% messages from delta are read into q3, reducing the size of -%% delta. If the queue is non empty, either q4 or q3 contain -%% entries. It is never permitted for delta to hold all the messages -%% in the queue. -%% -%% The duration indicated to us by the memory_monitor is used to -%% calculate, given our current ingress and egress rates, how many -%% messages we should hold in RAM. We track the ingress and egress -%% rates for both messages and pending acks and rates for both are -%% considered when calculating the number of messages to hold in -%% RAM. When we need to push alphas to betas or betas to gammas, we -%% favour writing out messages that are further from the head of the -%% queue. This minimises writes to disk, as the messages closer to the -%% tail of the queue stay in the queue for longer, thus do not need to -%% be replaced as quickly by sending other messages to disk. -%% -%% Whilst messages are pushed to disk and forgotten from RAM as soon -%% as requested by a new setting of the queue RAM duration, the -%% inverse is not true: we only load messages back into RAM as -%% demanded as the queue is read from. Thus only publishes to the -%% queue will take up available spare capacity. -%% -%% When we report our duration to the memory monitor, we calculate -%% average ingress and egress rates over the last two samples, and -%% then calculate our duration based on the sum of the ingress and -%% egress rates. More than two samples could be used, but it's a -%% balance between responding quickly enough to changes in -%% producers/consumers versus ignoring temporary blips. The problem -%% with temporary blips is that with just a few queues, they can have -%% substantial impact on the calculation of the average duration and -%% hence cause unnecessary I/O. Another alternative is to increase the -%% amqqueue_process:RAM_DURATION_UPDATE_PERIOD to beyond 5 -%% seconds. However, that then runs the risk of being too slow to -%% inform the memory monitor of changes. Thus a 5 second interval, -%% plus a rolling average over the last two samples seems to work -%% well in practice. -%% -%% The sum of the ingress and egress rates is used because the egress -%% rate alone is not sufficient. Adding in the ingress rate means that -%% queues which are being flooded by messages are given more memory, -%% resulting in them being able to process the messages faster (by -%% doing less I/O, or at least deferring it) and thus helping keep -%% their mailboxes empty and thus the queue as a whole is more -%% responsive. If such a queue also has fast but previously idle -%% consumers, the consumer can then start to be driven as fast as it -%% can go, whereas if only egress rate was being used, the incoming -%% messages may have to be written to disk and then read back in, -%% resulting in the hard disk being a bottleneck in driving the -%% consumers. Generally, we want to give Rabbit every chance of -%% getting rid of messages as fast as possible and remaining -%% responsive, and using only the egress rate impacts that goal. -%% -%% If a queue is full of transient messages, then the transition from -%% betas to deltas will be potentially very expensive as millions of -%% entries must be written to disk by the queue_index module. This can -%% badly stall the queue. In order to avoid this, the proportion of -%% gammas / (betas+gammas) must not be lower than (betas+gammas) / -%% (alphas+betas+gammas). As the queue grows or available memory -%% shrinks, the latter ratio increases, requiring the conversion of -%% more gammas to betas in order to maintain the invariant. At the -%% point at which betas and gammas must be converted to deltas, there -%% should be very few betas remaining, thus the transition is fast (no -%% work needs to be done for the gamma -> delta transition). -%% -%% The conversion of betas to gammas is done in batches of exactly -%% ?IO_BATCH_SIZE. This value should not be too small, otherwise the -%% frequent operations on the queues of q2 and q3 will not be -%% effectively amortised (switching the direction of queue access -%% defeats amortisation), nor should it be too big, otherwise -%% converting a batch stalls the queue for too long. Therefore, it -%% must be just right. ram_index_count is used here and is the number -%% of betas. -%% -%% The conversion from alphas to betas is also chunked, but only to -%% ensure no more than ?IO_BATCH_SIZE alphas are converted to betas at -%% any one time. This further smooths the effects of changes to the -%% target_ram_count and ensures the queue remains responsive -%% even when there is a large amount of IO work to do. The -%% timeout callback is utilised to ensure that conversions are -%% done as promptly as possible whilst ensuring the queue remains -%% responsive. -%% -%% In the queue we keep track of both messages that are pending -%% delivery and messages that are pending acks. In the event of a -%% queue purge, we only need to load qi segments if the queue has -%% elements in deltas (i.e. it came under significant memory -%% pressure). In the event of a queue deletion, in addition to the -%% preceding, by keeping track of pending acks in RAM, we do not need -%% to search through qi segments looking for messages that are yet to -%% be acknowledged. -%% -%% Pending acks are recorded in memory either as the tuple {SeqId, -%% MsgId, MsgProps} (tuple-form) or as the message itself (message- -%% form). Acks for persistent messages are always stored in the tuple- -%% form. Acks for transient messages are also stored in tuple-form if -%% the message has been sent to disk as part of the memory reduction -%% process. For transient messages that haven't already been written -%% to disk, acks are stored in message-form. -%% -%% During memory reduction, acks stored in message-form are converted -%% to tuple-form, and the corresponding messages are pushed out to -%% disk. -%% -%% The order in which alphas are pushed to betas and message-form acks -%% are pushed to disk is determined dynamically. We always prefer to -%% push messages for the source (alphas or acks) that is growing the -%% fastest (with growth measured as avg. ingress - avg. egress). In -%% each round of memory reduction a chunk of messages at most -%% ?IO_BATCH_SIZE in size is allocated to be pushed to disk. The -%% fastest growing source will be reduced by as much of this chunk as -%% possible. If there is any remaining allocation in the chunk after -%% the first source has been reduced to zero, the second source will -%% be reduced by as much of the remaining chunk as possible. -%% -%% Notes on Clean Shutdown -%% (This documents behaviour in variable_queue, queue_index and -%% msg_store.) -%% -%% In order to try to achieve as fast a start-up as possible, if a -%% clean shutdown occurs, we try to save out state to disk to reduce -%% work on startup. In the msg_store this takes the form of the -%% index_module's state, plus the file_summary ets table, and client -%% refs. In the VQ, this takes the form of the count of persistent -%% messages in the queue and references into the msg_stores. The -%% queue_index adds to these terms the details of its segments and -%% stores the terms in the queue directory. -%% -%% Two message stores are used. One is created for persistent messages -%% to durable queues that must survive restarts, and the other is used -%% for all other messages that just happen to need to be written to -%% disk. On start up we can therefore nuke the transient message -%% store, and be sure that the messages in the persistent store are -%% all that we need. -%% -%% The references to the msg_stores are there so that the msg_store -%% knows to only trust its saved state if all of the queues it was -%% previously talking to come up cleanly. Likewise, the queues -%% themselves (esp queue_index) skips work in init if all the queues -%% and msg_store were shutdown cleanly. This gives both good speed -%% improvements and also robustness so that if anything possibly went -%% wrong in shutdown (or there was subsequent manual tampering), all -%% messages and queues that can be recovered are recovered, safely. -%% -%% To delete transient messages lazily, the variable_queue, on -%% startup, stores the next_seq_id reported by the queue_index as the -%% transient_threshold. From that point on, whenever it's reading a -%% message off disk via the queue_index, if the seq_id is below this -%% threshold and the message is transient then it drops the message -%% (the message itself won't exist on disk because it would have been -%% stored in the transient msg_store which would have had its saved -%% state nuked on startup). This avoids the expensive operation of -%% scanning the entire queue on startup in order to delete transient -%% messages that were only pushed to disk to save memory. -%% -%%---------------------------------------------------------------------------- - --behaviour(rabbit_backing_queue). - --record(vqstate, - { q1, - q2, - delta, - q3, - q4, - next_seq_id, - pending_ack, - pending_ack_index, - ram_ack_index, - index_state, - msg_store_clients, - durable, - transient_threshold, - - async_callback, - - len, - persistent_count, - - target_ram_count, - ram_msg_count, - ram_msg_count_prev, - ram_ack_count_prev, - ram_index_count, - out_counter, - in_counter, - rates, - msgs_on_disk, - msg_indices_on_disk, - unconfirmed, - confirmed, - ack_out_counter, - ack_in_counter, - ack_rates - }). - --record(rates, { egress, ingress, avg_egress, avg_ingress, timestamp }). - --record(msg_status, - { seq_id, - msg_id, - msg, - is_persistent, - is_delivered, - msg_on_disk, - index_on_disk, - msg_props - }). - --record(delta, - { start_seq_id, %% start_seq_id is inclusive - count, - end_seq_id %% end_seq_id is exclusive - }). - -%% When we discover, on publish, that we should write some indices to -%% disk for some betas, the IO_BATCH_SIZE sets the number of betas -%% that we must be due to write indices for before we do any work at -%% all. This is both a minimum and a maximum - we don't write fewer -%% than IO_BATCH_SIZE indices out in one go, and we don't write more - -%% we can always come back on the next publish to do more. --define(IO_BATCH_SIZE, 64). --define(PERSISTENT_MSG_STORE, msg_store_persistent). --define(TRANSIENT_MSG_STORE, msg_store_transient). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --rabbit_upgrade({multiple_routing_keys, local, []}). - --ifdef(use_specs). - --type(timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}). --type(seq_id() :: non_neg_integer()). --type(ack() :: seq_id()). - --type(rates() :: #rates { egress :: {timestamp(), non_neg_integer()}, - ingress :: {timestamp(), non_neg_integer()}, - avg_egress :: float(), - avg_ingress :: float(), - timestamp :: timestamp() }). - --type(delta() :: #delta { start_seq_id :: non_neg_integer(), - count :: non_neg_integer(), - end_seq_id :: non_neg_integer() }). - --type(state() :: #vqstate { - q1 :: queue(), - q2 :: bpqueue:bpqueue(), - delta :: delta(), - q3 :: bpqueue:bpqueue(), - q4 :: queue(), - next_seq_id :: seq_id(), - pending_ack :: dict(), - ram_ack_index :: gb_tree(), - index_state :: any(), - msg_store_clients :: 'undefined' | {{any(), binary()}, - {any(), binary()}}, - durable :: boolean(), - transient_threshold :: non_neg_integer(), - - async_callback :: async_callback(), - - len :: non_neg_integer(), - persistent_count :: non_neg_integer(), - - target_ram_count :: non_neg_integer() | 'infinity', - ram_msg_count :: non_neg_integer(), - ram_msg_count_prev :: non_neg_integer(), - ram_index_count :: non_neg_integer(), - out_counter :: non_neg_integer(), - in_counter :: non_neg_integer(), - rates :: rates(), - msgs_on_disk :: gb_set(), - msg_indices_on_disk :: gb_set(), - unconfirmed :: gb_set(), - confirmed :: gb_set(), - ack_out_counter :: non_neg_integer(), - ack_in_counter :: non_neg_integer(), - ack_rates :: rates() }). - --include("rabbit_backing_queue_spec.hrl"). - --spec(multiple_routing_keys/0 :: () -> 'ok'). - --endif. - --define(BLANK_DELTA, #delta { start_seq_id = undefined, - count = 0, - end_seq_id = undefined }). --define(BLANK_DELTA_PATTERN(Z), #delta { start_seq_id = Z, - count = 0, - end_seq_id = Z }). - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -start(DurableQueues) -> - {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), - start_msg_store( - [Ref || Terms <- AllTerms, - begin - Ref = proplists:get_value(persistent_ref, Terms), - Ref =/= undefined - end], - StartFunState). - -stop() -> stop_msg_store(). - -start_msg_store(Refs, StartFunState) -> - ok = rabbit_sup:start_child(?TRANSIENT_MSG_STORE, rabbit_msg_store, - [?TRANSIENT_MSG_STORE, rabbit_mnesia:dir(), - undefined, {fun (ok) -> finished end, ok}]), - ok = rabbit_sup:start_child(?PERSISTENT_MSG_STORE, rabbit_msg_store, - [?PERSISTENT_MSG_STORE, rabbit_mnesia:dir(), - Refs, StartFunState]). - -stop_msg_store() -> - ok = rabbit_sup:stop_child(?PERSISTENT_MSG_STORE), - ok = rabbit_sup:stop_child(?TRANSIENT_MSG_STORE). - -init(Queue, Recover, AsyncCallback) -> - init(Queue, Recover, AsyncCallback, - fun (MsgIds, ActionTaken) -> - msgs_written_to_disk(AsyncCallback, MsgIds, ActionTaken) - end, - fun (MsgIds) -> msg_indices_written_to_disk(AsyncCallback, MsgIds) end). - -init(#amqqueue { name = QueueName, durable = IsDurable }, false, - AsyncCallback, MsgOnDiskFun, MsgIdxOnDiskFun) -> - IndexState = rabbit_queue_index:init(QueueName, MsgIdxOnDiskFun), - init(IsDurable, IndexState, 0, [], AsyncCallback, - case IsDurable of - true -> msg_store_client_init(?PERSISTENT_MSG_STORE, - MsgOnDiskFun, AsyncCallback); - false -> undefined - end, - msg_store_client_init(?TRANSIENT_MSG_STORE, undefined, AsyncCallback)); - -init(#amqqueue { name = QueueName, durable = true }, true, - AsyncCallback, MsgOnDiskFun, MsgIdxOnDiskFun) -> - Terms = rabbit_queue_index:shutdown_terms(QueueName), - {PRef, TRef, Terms1} = - case [persistent_ref, transient_ref] -- proplists:get_keys(Terms) of - [] -> {proplists:get_value(persistent_ref, Terms), - proplists:get_value(transient_ref, Terms), - Terms}; - _ -> {rabbit_guid:guid(), rabbit_guid:guid(), []} - end, - PersistentClient = msg_store_client_init(?PERSISTENT_MSG_STORE, PRef, - MsgOnDiskFun, AsyncCallback), - TransientClient = msg_store_client_init(?TRANSIENT_MSG_STORE, TRef, - undefined, AsyncCallback), - {DeltaCount, IndexState} = - rabbit_queue_index:recover( - QueueName, Terms1, - rabbit_msg_store:successfully_recovered_state(?PERSISTENT_MSG_STORE), - fun (MsgId) -> - rabbit_msg_store:contains(MsgId, PersistentClient) - end, - MsgIdxOnDiskFun), - init(true, IndexState, DeltaCount, Terms1, AsyncCallback, - PersistentClient, TransientClient). - -terminate(_Reason, State) -> - State1 = #vqstate { persistent_count = PCount, - index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(true, State), - PRef = case MSCStateP of - undefined -> undefined; - _ -> ok = rabbit_msg_store:client_terminate(MSCStateP), - rabbit_msg_store:client_ref(MSCStateP) - end, - ok = rabbit_msg_store:client_terminate(MSCStateT), - TRef = rabbit_msg_store:client_ref(MSCStateT), - Terms = [{persistent_ref, PRef}, - {transient_ref, TRef}, - {persistent_count, PCount}], - a(State1 #vqstate { index_state = rabbit_queue_index:terminate( - Terms, IndexState), - msg_store_clients = undefined }). - -%% the only difference between purge and delete is that delete also -%% needs to delete everything that's been delivered and not ack'd. -delete_and_terminate(_Reason, State) -> - %% TODO: there is no need to interact with qi at all - which we do - %% as part of 'purge' and 'remove_pending_ack', other than - %% deleting it. - {_PurgeCount, State1} = purge(State), - State2 = #vqstate { index_state = IndexState, - msg_store_clients = {MSCStateP, MSCStateT} } = - remove_pending_ack(false, State1), - IndexState1 = rabbit_queue_index:delete_and_terminate(IndexState), - case MSCStateP of - undefined -> ok; - _ -> rabbit_msg_store:client_delete_and_terminate(MSCStateP) - end, - rabbit_msg_store:client_delete_and_terminate(MSCStateT), - a(State2 #vqstate { index_state = IndexState1, - msg_store_clients = undefined }). - -purge(State = #vqstate { q4 = Q4, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% TODO: when there are no pending acks, which is a common case, - %% we could simply wipe the qi instead of issuing delivers and - %% acks for all the messages. - {LensByStore, IndexState1} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q4, - orddict:new(), IndexState, MSCState), - {LensByStore1, State1 = #vqstate { q1 = Q1, - index_state = IndexState2, - msg_store_clients = MSCState1 }} = - purge_betas_and_deltas(LensByStore, - State #vqstate { q4 = queue:new(), - index_state = IndexState1 }), - {LensByStore2, IndexState3} = remove_queue_entries( - fun rabbit_misc:queue_fold/3, Q1, - LensByStore1, IndexState2, MSCState1), - PCount1 = PCount - find_persistent_count(LensByStore2), - {Len, a(State1 #vqstate { q1 = queue:new(), - index_state = IndexState3, - len = 0, - ram_msg_count = 0, - ram_index_count = 0, - persistent_count = PCount1 })}. - -publish(Msg, MsgProps, _ChPid, State) -> - {_SeqId, State1} = publish(Msg, MsgProps, false, false, State), - a(reduce_memory_use(State1)). - -publish_delivered(false, #basic_message { id = MsgId }, - #message_properties { needs_confirming = NeedsConfirming }, - _ChPid, State = #vqstate { async_callback = Callback, - len = 0 }) -> - case NeedsConfirming of - true -> blind_confirm(Callback, gb_sets:singleton(MsgId)); - false -> ok - end, - {undefined, a(State)}; -publish_delivered(true, Msg = #basic_message { is_persistent = IsPersistent, - id = MsgId }, - MsgProps = #message_properties { - needs_confirming = NeedsConfirming }, - _ChPid, State = #vqstate { len = 0, - next_seq_id = SeqId, - out_counter = OutCount, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = true }, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = record_pending_ack(m(MsgStatus1), State1), - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, MsgId, UC), - {SeqId, a(reduce_memory_use( - State2 #vqstate { next_seq_id = SeqId + 1, - out_counter = OutCount + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - unconfirmed = UC1 }))}. - -drain_confirmed(State = #vqstate { confirmed = C }) -> - {gb_sets:to_list(C), State #vqstate { confirmed = gb_sets:new() }}. - -dropwhile(Pred, State) -> - case queue_out(State) of - {empty, State1} -> - a(State1); - {{value, MsgStatus = #msg_status { msg_props = MsgProps }}, State1} -> - case Pred(MsgProps) of - true -> {_, State2} = internal_fetch(false, MsgStatus, State1), - dropwhile(Pred, State2); - false -> a(in_r(MsgStatus, State1)) - end - end. - -fetch(AckRequired, State) -> - case queue_out(State) of - {empty, State1} -> - {empty, a(State1)}; - {{value, MsgStatus}, State1} -> - %% it is possible that the message wasn't read from disk - %% at this point, so read it in. - {MsgStatus1, State2} = read_msg(MsgStatus, State1), - {Res, State3} = internal_fetch(AckRequired, MsgStatus1, State2), - {Res, a(State3)} - end. - -ack(AckTags, State) -> - {MsgIds, State1} = ack(fun msg_store_remove/3, - fun (_, State0) -> State0 end, - AckTags, State), - {MsgIds, a(State1)}. - -requeue(AckTags, MsgPropsFun, State) -> - MsgPropsFun1 = fun (MsgProps) -> - (MsgPropsFun(MsgProps)) #message_properties { - needs_confirming = false } - end, - {MsgIds, State1} = - ack(fun (_, _, _) -> ok end, - fun (#msg_status { msg = Msg, msg_props = MsgProps }, State1) -> - {_SeqId, State2} = publish(Msg, MsgPropsFun1(MsgProps), - true, false, State1), - State2; - ({IsPersistent, MsgId, MsgProps}, State1) -> - #vqstate { msg_store_clients = MSCState } = State1, - {{ok, Msg = #basic_message{}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, MsgId), - State2 = State1 #vqstate { msg_store_clients = MSCState1 }, - {_SeqId, State3} = publish(Msg, MsgPropsFun1(MsgProps), - true, true, State2), - State3 - end, - AckTags, State), - {MsgIds, a(reduce_memory_use(State1))}. - -len(#vqstate { len = Len }) -> Len. - -is_empty(State) -> 0 == len(State). - -set_ram_duration_target( - DurationTarget, State = #vqstate { - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate }, - target_ram_count = TargetRamCount }) -> - Rate = - AvgEgressRate + AvgIngressRate + AvgAckEgressRate + AvgAckIngressRate, - TargetRamCount1 = - case DurationTarget of - infinity -> infinity; - _ -> trunc(DurationTarget * Rate) %% msgs = sec * msgs/sec - end, - State1 = State #vqstate { target_ram_count = TargetRamCount1 }, - a(case TargetRamCount1 == infinity orelse - (TargetRamCount =/= infinity andalso - TargetRamCount1 >= TargetRamCount) of - true -> State1; - false -> reduce_memory_use(State1) - end). - -ram_duration(State = #vqstate { - rates = #rates { timestamp = Timestamp, - egress = Egress, - ingress = Ingress } = Rates, - ack_rates = #rates { timestamp = AckTimestamp, - egress = AckEgress, - ingress = AckIngress } = ARates, - in_counter = InCount, - out_counter = OutCount, - ack_in_counter = AckInCount, - ack_out_counter = AckOutCount, - ram_msg_count = RamMsgCount, - ram_msg_count_prev = RamMsgCountPrev, - ram_ack_index = RamAckIndex, - ram_ack_count_prev = RamAckCountPrev }) -> - Now = now(), - {AvgEgressRate, Egress1} = update_rate(Now, Timestamp, OutCount, Egress), - {AvgIngressRate, Ingress1} = update_rate(Now, Timestamp, InCount, Ingress), - - {AvgAckEgressRate, AckEgress1} = - update_rate(Now, AckTimestamp, AckOutCount, AckEgress), - {AvgAckIngressRate, AckIngress1} = - update_rate(Now, AckTimestamp, AckInCount, AckIngress), - - RamAckCount = gb_trees:size(RamAckIndex), - - Duration = %% msgs+acks / (msgs+acks/sec) == sec - case (AvgEgressRate == 0 andalso AvgIngressRate == 0 andalso - AvgAckEgressRate == 0 andalso AvgAckIngressRate == 0) of - true -> infinity; - false -> (RamMsgCountPrev + RamMsgCount + - RamAckCount + RamAckCountPrev) / - (4 * (AvgEgressRate + AvgIngressRate + - AvgAckEgressRate + AvgAckIngressRate)) - end, - - {Duration, State #vqstate { - rates = Rates #rates { - egress = Egress1, - ingress = Ingress1, - avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate, - timestamp = Now }, - ack_rates = ARates #rates { - egress = AckEgress1, - ingress = AckIngress1, - avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate, - timestamp = Now }, - in_counter = 0, - out_counter = 0, - ack_in_counter = 0, - ack_out_counter = 0, - ram_msg_count_prev = RamMsgCount, - ram_ack_count_prev = RamAckCount }}. - -needs_timeout(State) -> - case needs_index_sync(State) of - false -> case reduce_memory_use( - fun (_Quota, State1) -> {0, State1} end, - fun (_Quota, State1) -> State1 end, - fun (State1) -> State1 end, - fun (_Quota, State1) -> {0, State1} end, - State) of - {true, _State} -> idle; - {false, _State} -> false - end; - true -> timed - end. - -timeout(State) -> - a(reduce_memory_use(confirm_commit_index(State))). - -handle_pre_hibernate(State = #vqstate { index_state = IndexState }) -> - State #vqstate { index_state = rabbit_queue_index:flush(IndexState) }. - -status(#vqstate { - q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - pending_ack = PA, - ram_ack_index = RAI, - target_ram_count = TargetRamCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount, - next_seq_id = NextSeqId, - persistent_count = PersistentCount, - rates = #rates { avg_egress = AvgEgressRate, - avg_ingress = AvgIngressRate }, - ack_rates = #rates { avg_egress = AvgAckEgressRate, - avg_ingress = AvgAckIngressRate } }) -> - [ {q1 , queue:len(Q1)}, - {q2 , bpqueue:len(Q2)}, - {delta , Delta}, - {q3 , bpqueue:len(Q3)}, - {q4 , queue:len(Q4)}, - {len , Len}, - {pending_acks , dict:size(PA)}, - {target_ram_count , TargetRamCount}, - {ram_msg_count , RamMsgCount}, - {ram_ack_count , gb_trees:size(RAI)}, - {ram_index_count , RamIndexCount}, - {next_seq_id , NextSeqId}, - {persistent_count , PersistentCount}, - {avg_ingress_rate , AvgIngressRate}, - {avg_egress_rate , AvgEgressRate}, - {avg_ack_ingress_rate, AvgAckIngressRate}, - {avg_ack_egress_rate , AvgAckEgressRate} ]. - -invoke(?MODULE, Fun, State) -> Fun(?MODULE, State). - -is_duplicate(_Msg, State) -> {false, State}. - -discard(_Msg, _ChPid, State) -> State. - -%%---------------------------------------------------------------------------- -%% Minor helpers -%%---------------------------------------------------------------------------- - -a(State = #vqstate { q1 = Q1, q2 = Q2, delta = Delta, q3 = Q3, q4 = Q4, - len = Len, - persistent_count = PersistentCount, - ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }) -> - E1 = queue:is_empty(Q1), - E2 = bpqueue:is_empty(Q2), - ED = Delta#delta.count == 0, - E3 = bpqueue:is_empty(Q3), - E4 = queue:is_empty(Q4), - LZ = Len == 0, - - true = E1 or not E3, - true = E2 or not ED, - true = ED or not E3, - true = LZ == (E3 and E4), - - true = Len >= 0, - true = PersistentCount >= 0, - true = RamMsgCount >= 0, - true = RamIndexCount >= 0, - - State. - -m(MsgStatus = #msg_status { msg = Msg, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }) -> - true = (not IsPersistent) or IndexOnDisk, - true = (not IndexOnDisk) or MsgOnDisk, - true = (Msg =/= undefined) or MsgOnDisk, - - MsgStatus. - -one_if(true ) -> 1; -one_if(false) -> 0. - -cons_if(true, E, L) -> [E | L]; -cons_if(false, _E, L) -> L. - -gb_sets_maybe_insert(false, _Val, Set) -> Set; -%% when requeueing, we re-add a msg_id to the unconfirmed set -gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). - -msg_status(IsPersistent, SeqId, Msg = #basic_message { id = MsgId }, - MsgProps) -> - #msg_status { seq_id = SeqId, msg_id = MsgId, msg = Msg, - is_persistent = IsPersistent, is_delivered = false, - msg_on_disk = false, index_on_disk = false, - msg_props = MsgProps }. - -with_msg_store_state({MSCStateP, MSCStateT}, true, Fun) -> - {Result, MSCStateP1} = Fun(MSCStateP), - {Result, {MSCStateP1, MSCStateT}}; -with_msg_store_state({MSCStateP, MSCStateT}, false, Fun) -> - {Result, MSCStateT1} = Fun(MSCStateT), - {Result, {MSCStateP, MSCStateT1}}. - -with_immutable_msg_store_state(MSCState, IsPersistent, Fun) -> - {Res, MSCState} = with_msg_store_state(MSCState, IsPersistent, - fun (MSCState1) -> - {Fun(MSCState1), MSCState1} - end), - Res. - -msg_store_client_init(MsgStore, MsgOnDiskFun, Callback) -> - msg_store_client_init(MsgStore, rabbit_guid:guid(), MsgOnDiskFun, Callback). - -msg_store_client_init(MsgStore, Ref, MsgOnDiskFun, Callback) -> - CloseFDsFun = msg_store_close_fds_fun(MsgStore =:= ?PERSISTENT_MSG_STORE), - rabbit_msg_store:client_init(MsgStore, Ref, MsgOnDiskFun, - fun () -> Callback(?MODULE, CloseFDsFun) end). - -msg_store_write(MSCState, IsPersistent, MsgId, Msg) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:write(MsgId, Msg, MSCState1) end). - -msg_store_read(MSCState, IsPersistent, MsgId) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:read(MsgId, MSCState1) end). - -msg_store_remove(MSCState, IsPersistent, MsgIds) -> - with_immutable_msg_store_state( - MSCState, IsPersistent, - fun (MCSState1) -> rabbit_msg_store:remove(MsgIds, MCSState1) end). - -msg_store_close_fds(MSCState, IsPersistent) -> - with_msg_store_state( - MSCState, IsPersistent, - fun (MSCState1) -> rabbit_msg_store:close_all_indicated(MSCState1) end). - -msg_store_close_fds_fun(IsPersistent) -> - fun (?MODULE, State = #vqstate { msg_store_clients = MSCState }) -> - {ok, MSCState1} = msg_store_close_fds(MSCState, IsPersistent), - State #vqstate { msg_store_clients = MSCState1 } - end. - -maybe_write_delivered(false, _SeqId, IndexState) -> - IndexState; -maybe_write_delivered(true, SeqId, IndexState) -> - rabbit_queue_index:deliver([SeqId], IndexState). - -betas_from_index_entries(List, TransientThreshold, IndexState) -> - {Filtered, Delivers, Acks} = - lists:foldr( - fun ({MsgId, SeqId, MsgProps, IsPersistent, IsDelivered}, - {Filtered1, Delivers1, Acks1}) -> - case SeqId < TransientThreshold andalso not IsPersistent of - true -> {Filtered1, - cons_if(not IsDelivered, SeqId, Delivers1), - [SeqId | Acks1]}; - false -> {[m(#msg_status { msg = undefined, - msg_id = MsgId, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = true, - index_on_disk = true, - msg_props = MsgProps - }) | Filtered1], - Delivers1, - Acks1} - end - end, {[], [], []}, List), - {bpqueue:from_list([{true, Filtered}]), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -%% the first arg is the older delta -combine_deltas(?BLANK_DELTA_PATTERN(X), ?BLANK_DELTA_PATTERN(Y)) -> - ?BLANK_DELTA; -combine_deltas(?BLANK_DELTA_PATTERN(X), #delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = B) -> - true = Start + Count =< End, %% ASSERTION - B; -combine_deltas(#delta { start_seq_id = Start, - count = Count, - end_seq_id = End } = A, ?BLANK_DELTA_PATTERN(Y)) -> - true = Start + Count =< End, %% ASSERTION - A; -combine_deltas(#delta { start_seq_id = StartLow, - count = CountLow, - end_seq_id = EndLow }, - #delta { start_seq_id = StartHigh, - count = CountHigh, - end_seq_id = EndHigh }) -> - Count = CountLow + CountHigh, - true = (StartLow =< StartHigh) %% ASSERTIONS - andalso ((StartLow + CountLow) =< EndLow) - andalso ((StartHigh + CountHigh) =< EndHigh) - andalso ((StartLow + Count) =< EndHigh), - #delta { start_seq_id = StartLow, count = Count, end_seq_id = EndHigh }. - -beta_fold(Fun, Init, Q) -> - bpqueue:foldr(fun (_Prefix, Value, Acc) -> Fun(Value, Acc) end, Init, Q). - -update_rate(Now, Then, Count, {OThen, OCount}) -> - %% avg over the current period and the previous - {1000000.0 * (Count + OCount) / timer:now_diff(Now, OThen), {Then, Count}}. - -%%---------------------------------------------------------------------------- -%% Internal major helpers for Public API -%%---------------------------------------------------------------------------- - -init(IsDurable, IndexState, DeltaCount, Terms, AsyncCallback, - PersistentClient, TransientClient) -> - {LowSeqId, NextSeqId, IndexState1} = rabbit_queue_index:bounds(IndexState), - - DeltaCount1 = proplists:get_value(persistent_count, Terms, DeltaCount), - Delta = case DeltaCount1 == 0 andalso DeltaCount /= undefined of - true -> ?BLANK_DELTA; - false -> #delta { start_seq_id = LowSeqId, - count = DeltaCount1, - end_seq_id = NextSeqId } - end, - Now = now(), - State = #vqstate { - q1 = queue:new(), - q2 = bpqueue:new(), - delta = Delta, - q3 = bpqueue:new(), - q4 = queue:new(), - next_seq_id = NextSeqId, - pending_ack = dict:new(), - ram_ack_index = gb_trees:empty(), - index_state = IndexState1, - msg_store_clients = {PersistentClient, TransientClient}, - durable = IsDurable, - transient_threshold = NextSeqId, - - async_callback = AsyncCallback, - - len = DeltaCount1, - persistent_count = DeltaCount1, - - target_ram_count = infinity, - ram_msg_count = 0, - ram_msg_count_prev = 0, - ram_ack_count_prev = 0, - ram_index_count = 0, - out_counter = 0, - in_counter = 0, - rates = blank_rate(Now, DeltaCount1), - msgs_on_disk = gb_sets:new(), - msg_indices_on_disk = gb_sets:new(), - unconfirmed = gb_sets:new(), - confirmed = gb_sets:new(), - ack_out_counter = 0, - ack_in_counter = 0, - ack_rates = blank_rate(Now, 0) }, - a(maybe_deltas_to_betas(State)). - -blank_rate(Timestamp, IngressLength) -> - #rates { egress = {Timestamp, 0}, - ingress = {Timestamp, IngressLength}, - avg_egress = 0.0, - avg_ingress = 0.0, - timestamp = Timestamp }. - -in_r(MsgStatus = #msg_status { msg = undefined, index_on_disk = IndexOnDisk }, - State = #vqstate { q3 = Q3, q4 = Q4, ram_index_count = RamIndexCount }) -> - case queue:is_empty(Q4) of - true -> State #vqstate { - q3 = bpqueue:in_r(IndexOnDisk, MsgStatus, Q3), - ram_index_count = RamIndexCount + one_if(not IndexOnDisk) }; - false -> {MsgStatus1, State1 = #vqstate { q4 = Q4a }} = - read_msg(MsgStatus, State), - State1 #vqstate { q4 = queue:in_r(MsgStatus1, Q4a) } - end; -in_r(MsgStatus, State = #vqstate { q4 = Q4 }) -> - State #vqstate { q4 = queue:in_r(MsgStatus, Q4) }. - -queue_out(State = #vqstate { q4 = Q4 }) -> - case queue:out(Q4) of - {empty, _Q4} -> - case fetch_from_q3(State) of - {empty, _State1} = Result -> Result; - {loaded, {MsgStatus, State1}} -> {{value, MsgStatus}, State1} - end; - {{value, MsgStatus}, Q4a} -> - {{value, MsgStatus}, State #vqstate { q4 = Q4a }} - end. - -read_msg(MsgStatus = #msg_status { msg = undefined, - msg_id = MsgId, - is_persistent = IsPersistent }, - State = #vqstate { ram_msg_count = RamMsgCount, - msg_store_clients = MSCState}) -> - {{ok, Msg = #basic_message {}}, MSCState1} = - msg_store_read(MSCState, IsPersistent, MsgId), - {MsgStatus #msg_status { msg = Msg }, - State #vqstate { ram_msg_count = RamMsgCount + 1, - msg_store_clients = MSCState1 }}; -read_msg(MsgStatus, State) -> - {MsgStatus, State}. - -internal_fetch(AckRequired, MsgStatus = #msg_status { - seq_id = SeqId, - msg_id = MsgId, - msg = Msg, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk }, - State = #vqstate {ram_msg_count = RamMsgCount, - out_counter = OutCount, - index_state = IndexState, - msg_store_clients = MSCState, - len = Len, - persistent_count = PCount }) -> - %% 1. Mark it delivered if necessary - IndexState1 = maybe_write_delivered( - IndexOnDisk andalso not IsDelivered, - SeqId, IndexState), - - %% 2. Remove from msg_store and queue index, if necessary - Rem = fun () -> - ok = msg_store_remove(MSCState, IsPersistent, [MsgId]) - end, - Ack = fun () -> rabbit_queue_index:ack([SeqId], IndexState1) end, - IndexState2 = - case {AckRequired, MsgOnDisk, IndexOnDisk, IsPersistent} of - {false, true, false, _} -> Rem(), IndexState1; - {false, true, true, _} -> Rem(), Ack(); - { true, true, true, false} -> Ack(); - _ -> IndexState1 - end, - - %% 3. If an ack is required, add something sensible to PA - {AckTag, State1} = case AckRequired of - true -> StateN = record_pending_ack( - MsgStatus #msg_status { - is_delivered = true }, State), - {SeqId, StateN}; - false -> {undefined, State} - end, - - PCount1 = PCount - one_if(IsPersistent andalso not AckRequired), - Len1 = Len - 1, - RamMsgCount1 = RamMsgCount - one_if(Msg =/= undefined), - - {{Msg, IsDelivered, AckTag, Len1}, - State1 #vqstate { ram_msg_count = RamMsgCount1, - out_counter = OutCount + 1, - index_state = IndexState2, - len = Len1, - persistent_count = PCount1 }}. - -purge_betas_and_deltas(LensByStore, - State = #vqstate { q3 = Q3, - index_state = IndexState, - msg_store_clients = MSCState }) -> - case bpqueue:is_empty(Q3) of - true -> {LensByStore, State}; - false -> {LensByStore1, IndexState1} = - remove_queue_entries(fun beta_fold/3, Q3, - LensByStore, IndexState, MSCState), - purge_betas_and_deltas(LensByStore1, - maybe_deltas_to_betas( - State #vqstate { - q3 = bpqueue:new(), - index_state = IndexState1 })) - end. - -remove_queue_entries(Fold, Q, LensByStore, IndexState, MSCState) -> - {MsgIdsByStore, Delivers, Acks} = - Fold(fun remove_queue_entries1/2, {orddict:new(), [], []}, Q), - ok = orddict:fold(fun (IsPersistent, MsgIds, ok) -> - msg_store_remove(MSCState, IsPersistent, MsgIds) - end, ok, MsgIdsByStore), - {sum_msg_ids_by_store_to_len(LensByStore, MsgIdsByStore), - rabbit_queue_index:ack(Acks, - rabbit_queue_index:deliver(Delivers, IndexState))}. - -remove_queue_entries1( - #msg_status { msg_id = MsgId, seq_id = SeqId, - is_delivered = IsDelivered, msg_on_disk = MsgOnDisk, - index_on_disk = IndexOnDisk, is_persistent = IsPersistent }, - {MsgIdsByStore, Delivers, Acks}) -> - {case MsgOnDisk of - true -> rabbit_misc:orddict_cons(IsPersistent, MsgId, MsgIdsByStore); - false -> MsgIdsByStore - end, - cons_if(IndexOnDisk andalso not IsDelivered, SeqId, Delivers), - cons_if(IndexOnDisk, SeqId, Acks)}. - -sum_msg_ids_by_store_to_len(LensByStore, MsgIdsByStore) -> - orddict:fold( - fun (IsPersistent, MsgIds, LensByStore1) -> - orddict:update_counter(IsPersistent, length(MsgIds), LensByStore1) - end, LensByStore, MsgIdsByStore). - -%%---------------------------------------------------------------------------- -%% Internal gubbins for publishing -%%---------------------------------------------------------------------------- - -publish(Msg = #basic_message { is_persistent = IsPersistent, id = MsgId }, - MsgProps = #message_properties { needs_confirming = NeedsConfirming }, - IsDelivered, MsgOnDisk, - State = #vqstate { q1 = Q1, q3 = Q3, q4 = Q4, - next_seq_id = SeqId, - len = Len, - in_counter = InCount, - persistent_count = PCount, - durable = IsDurable, - ram_msg_count = RamMsgCount, - unconfirmed = UC }) -> - IsPersistent1 = IsDurable andalso IsPersistent, - MsgStatus = (msg_status(IsPersistent1, SeqId, Msg, MsgProps)) - #msg_status { is_delivered = IsDelivered, msg_on_disk = MsgOnDisk}, - {MsgStatus1, State1} = maybe_write_to_disk(false, false, MsgStatus, State), - State2 = case bpqueue:is_empty(Q3) of - false -> State1 #vqstate { q1 = queue:in(m(MsgStatus1), Q1) }; - true -> State1 #vqstate { q4 = queue:in(m(MsgStatus1), Q4) } - end, - PCount1 = PCount + one_if(IsPersistent1), - UC1 = gb_sets_maybe_insert(NeedsConfirming, MsgId, UC), - {SeqId, State2 #vqstate { next_seq_id = SeqId + 1, - len = Len + 1, - in_counter = InCount + 1, - persistent_count = PCount1, - ram_msg_count = RamMsgCount + 1, - unconfirmed = UC1 }}. - -maybe_write_msg_to_disk(_Force, MsgStatus = #msg_status { - msg_on_disk = true }, _MSCState) -> - MsgStatus; -maybe_write_msg_to_disk(Force, MsgStatus = #msg_status { - msg = Msg, msg_id = MsgId, - is_persistent = IsPersistent }, MSCState) - when Force orelse IsPersistent -> - Msg1 = Msg #basic_message { - %% don't persist any recoverable decoded properties - content = rabbit_binary_parser:clear_decoded_content( - Msg #basic_message.content)}, - ok = msg_store_write(MSCState, IsPersistent, MsgId, Msg1), - MsgStatus #msg_status { msg_on_disk = true }; -maybe_write_msg_to_disk(_Force, MsgStatus, _MSCState) -> - MsgStatus. - -maybe_write_index_to_disk(_Force, MsgStatus = #msg_status { - index_on_disk = true }, IndexState) -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - {MsgStatus, IndexState}; -maybe_write_index_to_disk(Force, MsgStatus = #msg_status { - msg_id = MsgId, - seq_id = SeqId, - is_persistent = IsPersistent, - is_delivered = IsDelivered, - msg_props = MsgProps}, IndexState) - when Force orelse IsPersistent -> - true = MsgStatus #msg_status.msg_on_disk, %% ASSERTION - IndexState1 = rabbit_queue_index:publish( - MsgId, SeqId, MsgProps, IsPersistent, IndexState), - {MsgStatus #msg_status { index_on_disk = true }, - maybe_write_delivered(IsDelivered, SeqId, IndexState1)}; -maybe_write_index_to_disk(_Force, MsgStatus, IndexState) -> - {MsgStatus, IndexState}. - -maybe_write_to_disk(ForceMsg, ForceIndex, MsgStatus, - State = #vqstate { index_state = IndexState, - msg_store_clients = MSCState }) -> - MsgStatus1 = maybe_write_msg_to_disk(ForceMsg, MsgStatus, MSCState), - {MsgStatus2, IndexState1} = - maybe_write_index_to_disk(ForceIndex, MsgStatus1, IndexState), - {MsgStatus2, State #vqstate { index_state = IndexState1 }}. - -%%---------------------------------------------------------------------------- -%% Internal gubbins for acks -%%---------------------------------------------------------------------------- - -record_pending_ack(#msg_status { seq_id = SeqId, - msg_id = MsgId, - is_persistent = IsPersistent, - msg_on_disk = MsgOnDisk, - msg_props = MsgProps } = MsgStatus, - State = #vqstate { pending_ack = PA, - ram_ack_index = RAI, - ack_in_counter = AckInCount}) -> - {AckEntry, RAI1} = - case MsgOnDisk of - true -> {{IsPersistent, MsgId, MsgProps}, RAI}; - false -> {MsgStatus, gb_trees:insert(SeqId, MsgId, RAI)} - end, - PA1 = dict:store(SeqId, AckEntry, PA), - State #vqstate { pending_ack = PA1, - ram_ack_index = RAI1, - ack_in_counter = AckInCount + 1}. - -remove_pending_ack(KeepPersistent, - State = #vqstate { pending_ack = PA, - index_state = IndexState, - msg_store_clients = MSCState }) -> - {PersistentSeqIds, MsgIdsByStore, _AllMsgIds} = - dict:fold(fun accumulate_ack/3, accumulate_ack_init(), PA), - State1 = State #vqstate { pending_ack = dict:new(), - ram_ack_index = gb_trees:empty() }, - case KeepPersistent of - true -> case orddict:find(false, MsgIdsByStore) of - error -> State1; - {ok, MsgIds} -> ok = msg_store_remove(MSCState, false, - MsgIds), - State1 - end; - false -> IndexState1 = - rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = msg_store_remove(MSCState, IsPersistent, MsgIds) - || {IsPersistent, MsgIds} <- orddict:to_list(MsgIdsByStore)], - State1 #vqstate { index_state = IndexState1 } - end. - -ack(_MsgStoreFun, _Fun, [], State) -> - {[], State}; -ack(MsgStoreFun, Fun, AckTags, State) -> - {{PersistentSeqIds, MsgIdsByStore, AllMsgIds}, - State1 = #vqstate { index_state = IndexState, - msg_store_clients = MSCState, - persistent_count = PCount, - ack_out_counter = AckOutCount }} = - lists:foldl( - fun (SeqId, {Acc, State2 = #vqstate { pending_ack = PA, - ram_ack_index = RAI }}) -> - AckEntry = dict:fetch(SeqId, PA), - {accumulate_ack(SeqId, AckEntry, Acc), - Fun(AckEntry, State2 #vqstate { - pending_ack = dict:erase(SeqId, PA), - ram_ack_index = - gb_trees:delete_any(SeqId, RAI)})} - end, {accumulate_ack_init(), State}, AckTags), - IndexState1 = rabbit_queue_index:ack(PersistentSeqIds, IndexState), - [ok = MsgStoreFun(MSCState, IsPersistent, MsgIds) - || {IsPersistent, MsgIds} <- orddict:to_list(MsgIdsByStore)], - PCount1 = PCount - find_persistent_count(sum_msg_ids_by_store_to_len( - orddict:new(), MsgIdsByStore)), - {lists:reverse(AllMsgIds), - State1 #vqstate { index_state = IndexState1, - persistent_count = PCount1, - ack_out_counter = AckOutCount + length(AckTags) }}. - -accumulate_ack_init() -> {[], orddict:new(), []}. - -accumulate_ack(_SeqId, #msg_status { is_persistent = false, %% ASSERTIONS - msg_on_disk = false, - index_on_disk = false, - msg_id = MsgId }, - {PersistentSeqIdsAcc, MsgIdsByStore, AllMsgIds}) -> - {PersistentSeqIdsAcc, MsgIdsByStore, [MsgId | AllMsgIds]}; -accumulate_ack(SeqId, {IsPersistent, MsgId, _MsgProps}, - {PersistentSeqIdsAcc, MsgIdsByStore, AllMsgIds}) -> - {cons_if(IsPersistent, SeqId, PersistentSeqIdsAcc), - rabbit_misc:orddict_cons(IsPersistent, MsgId, MsgIdsByStore), - [MsgId | AllMsgIds]}. - -find_persistent_count(LensByStore) -> - case orddict:find(true, LensByStore) of - error -> 0; - {ok, Len} -> Len - end. - -%%---------------------------------------------------------------------------- -%% Internal plumbing for confirms (aka publisher acks) -%%---------------------------------------------------------------------------- - -confirm_commit_index(State = #vqstate { index_state = IndexState }) -> - case needs_index_sync(State) of - true -> State #vqstate { - index_state = rabbit_queue_index:sync(IndexState) }; - false -> State - end. - -record_confirms(MsgIdSet, State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC, - confirmed = C }) -> - State #vqstate { msgs_on_disk = gb_sets:difference(MOD, MsgIdSet), - msg_indices_on_disk = gb_sets:difference(MIOD, MsgIdSet), - unconfirmed = gb_sets:difference(UC, MsgIdSet), - confirmed = gb_sets:union (C, MsgIdSet) }. - -needs_index_sync(#vqstate { msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - %% If UC is empty then by definition, MIOD and MOD are also empty - %% and there's nothing that can be pending a sync. - - %% If UC is not empty, then we want to find is_empty(UC - MIOD), - %% but the subtraction can be expensive. Thus instead, we test to - %% see if UC is a subset of MIOD. This can only be the case if - %% MIOD == UC, which would indicate that every message in UC is - %% also in MIOD and is thus _all_ pending on a msg_store sync, not - %% on a qi sync. Thus the negation of this is sufficient. Because - %% is_subset is short circuiting, this is more efficient than the - %% subtraction. - not (gb_sets:is_empty(UC) orelse gb_sets:is_subset(UC, MIOD)). - -blind_confirm(Callback, MsgIdSet) -> - Callback(?MODULE, - fun (?MODULE, State) -> record_confirms(MsgIdSet, State) end). - -msgs_written_to_disk(Callback, MsgIdSet, removed) -> - blind_confirm(Callback, MsgIdSet); -msgs_written_to_disk(Callback, MsgIdSet, written) -> - Callback(?MODULE, - fun (?MODULE, State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - Confirmed = gb_sets:intersection(UC, MsgIdSet), - record_confirms(gb_sets:intersection(MsgIdSet, MIOD), - State #vqstate { - msgs_on_disk = - gb_sets:union(MOD, Confirmed) }) - end). - -msg_indices_written_to_disk(Callback, MsgIdSet) -> - Callback(?MODULE, - fun (?MODULE, State = #vqstate { msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC }) -> - Confirmed = gb_sets:intersection(UC, MsgIdSet), - record_confirms(gb_sets:intersection(MsgIdSet, MOD), - State #vqstate { - msg_indices_on_disk = - gb_sets:union(MIOD, Confirmed) }) - end). - -%%---------------------------------------------------------------------------- -%% Phase changes -%%---------------------------------------------------------------------------- - -%% Determine whether a reduction in memory use is necessary, and call -%% functions to perform the required phase changes. The function can -%% also be used to just do the former, by passing in dummy phase -%% change functions. -%% -%% The function does not report on any needed beta->delta conversions, -%% though the conversion function for that is called as necessary. The -%% reason is twofold. Firstly, this is safe because the conversion is -%% only ever necessary just after a transition to a -%% target_ram_count of zero or after an incremental alpha->beta -%% conversion. In the former case the conversion is performed straight -%% away (i.e. any betas present at the time are converted to deltas), -%% and in the latter case the need for a conversion is flagged up -%% anyway. Secondly, this is necessary because we do not have a -%% precise and cheap predicate for determining whether a beta->delta -%% conversion is necessary - due to the complexities of retaining up -%% one segment's worth of messages in q3 - and thus would risk -%% perpetually reporting the need for a conversion when no such -%% conversion is needed. That in turn could cause an infinite loop. -reduce_memory_use(_AlphaBetaFun, _BetaGammaFun, _BetaDeltaFun, _AckFun, - State = #vqstate {target_ram_count = infinity}) -> - {false, State}; -reduce_memory_use(AlphaBetaFun, BetaGammaFun, BetaDeltaFun, AckFun, - State = #vqstate { - ram_ack_index = RamAckIndex, - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount, - rates = #rates { avg_ingress = AvgIngress, - avg_egress = AvgEgress }, - ack_rates = #rates { avg_ingress = AvgAckIngress, - avg_egress = AvgAckEgress } - }) -> - - {Reduce, State1} = - case chunk_size(RamMsgCount + gb_trees:size(RamAckIndex), - TargetRamCount) of - 0 -> {false, State}; - %% Reduce memory of pending acks and alphas. The order is - %% determined based on which is growing faster. Whichever - %% comes second may very well get a quota of 0 if the - %% first manages to push out the max number of messages. - S1 -> {_, State2} = - lists:foldl(fun (ReduceFun, {QuotaN, StateN}) -> - ReduceFun(QuotaN, StateN) - end, - {S1, State}, - case (AvgAckIngress - AvgAckEgress) > - (AvgIngress - AvgEgress) of - true -> [AckFun, AlphaBetaFun]; - false -> [AlphaBetaFun, AckFun] - end), - {true, State2} - end, - - case State1 #vqstate.target_ram_count of - 0 -> {Reduce, BetaDeltaFun(State1)}; - _ -> case chunk_size(State1 #vqstate.ram_index_count, - permitted_ram_index_count(State1)) of - ?IO_BATCH_SIZE = S2 -> {true, BetaGammaFun(S2, State1)}; - _ -> {Reduce, State1} - end - end. - -limit_ram_acks(0, State) -> - {0, State}; -limit_ram_acks(Quota, State = #vqstate { pending_ack = PA, - ram_ack_index = RAI }) -> - case gb_trees:is_empty(RAI) of - true -> - {Quota, State}; - false -> - {SeqId, MsgId, RAI1} = gb_trees:take_largest(RAI), - MsgStatus = #msg_status { - msg_id = MsgId, %% ASSERTION - is_persistent = false, %% ASSERTION - msg_props = MsgProps } = dict:fetch(SeqId, PA), - {_, State1} = maybe_write_to_disk(true, false, MsgStatus, State), - PA1 = dict:store(SeqId, {false, MsgId, MsgProps}, PA), - limit_ram_acks(Quota - 1, - State1 #vqstate { pending_ack = PA1, - ram_ack_index = RAI1 }) - end. - - -reduce_memory_use(State) -> - {_, State1} = reduce_memory_use(fun push_alphas_to_betas/2, - fun limit_ram_index/2, - fun push_betas_to_deltas/1, - fun limit_ram_acks/2, - State), - State1. - -limit_ram_index(Quota, State = #vqstate { q2 = Q2, q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Q2a, {Quota1, IndexState1}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q2, {Quota, IndexState}), - %% TODO: we shouldn't be writing index entries for messages that - %% can never end up in delta due them residing in the only segment - %% held by q3. - {Q3a, {Quota2, IndexState2}} = limit_ram_index( - fun bpqueue:map_fold_filter_r/4, - Q3, {Quota1, IndexState1}), - State #vqstate { q2 = Q2a, q3 = Q3a, - index_state = IndexState2, - ram_index_count = RamIndexCount - (Quota - Quota2) }. - -limit_ram_index(_MapFoldFilterFun, Q, {0, IndexState}) -> - {Q, {0, IndexState}}; -limit_ram_index(MapFoldFilterFun, Q, {Quota, IndexState}) -> - MapFoldFilterFun( - fun erlang:'not'/1, - fun (MsgStatus, {0, _IndexStateN}) -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - stop; - (MsgStatus, {N, IndexStateN}) when N > 0 -> - false = MsgStatus #msg_status.index_on_disk, %% ASSERTION - {MsgStatus1, IndexStateN1} = - maybe_write_index_to_disk(true, MsgStatus, IndexStateN), - {true, m(MsgStatus1), {N-1, IndexStateN1}} - end, {Quota, IndexState}, Q). - -permitted_ram_index_count(#vqstate { len = 0 }) -> - infinity; -permitted_ram_index_count(#vqstate { len = Len, - q2 = Q2, - q3 = Q3, - delta = #delta { count = DeltaCount } }) -> - BetaLen = bpqueue:len(Q2) + bpqueue:len(Q3), - BetaLen - trunc(BetaLen * BetaLen / (Len - DeltaCount)). - -chunk_size(Current, Permitted) - when Permitted =:= infinity orelse Permitted >= Current -> - 0; -chunk_size(Current, Permitted) -> - lists:min([Current - Permitted, ?IO_BATCH_SIZE]). - -fetch_from_q3(State = #vqstate { - q1 = Q1, - q2 = Q2, - delta = #delta { count = DeltaCount }, - q3 = Q3, - q4 = Q4, - ram_index_count = RamIndexCount}) -> - case bpqueue:out(Q3) of - {empty, _Q3} -> - {empty, State}; - {{value, IndexOnDisk, MsgStatus}, Q3a} -> - RamIndexCount1 = RamIndexCount - one_if(not IndexOnDisk), - true = RamIndexCount1 >= 0, %% ASSERTION - State1 = State #vqstate { q3 = Q3a, - ram_index_count = RamIndexCount1 }, - State2 = - case {bpqueue:is_empty(Q3a), 0 == DeltaCount} of - {true, true} -> - %% q3 is now empty, it wasn't before; delta is - %% still empty. So q2 must be empty, and we - %% know q4 is empty otherwise we wouldn't be - %% loading from q3. As such, we can just set - %% q4 to Q1. - true = bpqueue:is_empty(Q2), %% ASSERTION - true = queue:is_empty(Q4), %% ASSERTION - State1 #vqstate { q1 = queue:new(), - q4 = Q1 }; - {true, false} -> - maybe_deltas_to_betas(State1); - {false, _} -> - %% q3 still isn't empty, we've not touched - %% delta, so the invariants between q1, q2, - %% delta and q3 are maintained - State1 - end, - {loaded, {MsgStatus, State2}} - end. - -maybe_deltas_to_betas(State = #vqstate { delta = ?BLANK_DELTA_PATTERN(X) }) -> - State; -maybe_deltas_to_betas(State = #vqstate { - q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - transient_threshold = TransientThreshold }) -> - #delta { start_seq_id = DeltaSeqId, - count = DeltaCount, - end_seq_id = DeltaSeqIdEnd } = Delta, - DeltaSeqId1 = - lists:min([rabbit_queue_index:next_segment_boundary(DeltaSeqId), - DeltaSeqIdEnd]), - {List, IndexState1} = - rabbit_queue_index:read(DeltaSeqId, DeltaSeqId1, IndexState), - {Q3a, IndexState2} = - betas_from_index_entries(List, TransientThreshold, IndexState1), - State1 = State #vqstate { index_state = IndexState2 }, - case bpqueue:len(Q3a) of - 0 -> - %% we ignored every message in the segment due to it being - %% transient and below the threshold - maybe_deltas_to_betas( - State1 #vqstate { - delta = Delta #delta { start_seq_id = DeltaSeqId1 }}); - Q3aLen -> - Q3b = bpqueue:join(Q3, Q3a), - case DeltaCount - Q3aLen of - 0 -> - %% delta is now empty, but it wasn't before, so - %% can now join q2 onto q3 - State1 #vqstate { q2 = bpqueue:new(), - delta = ?BLANK_DELTA, - q3 = bpqueue:join(Q3b, Q2) }; - N when N > 0 -> - Delta1 = #delta { start_seq_id = DeltaSeqId1, - count = N, - end_seq_id = DeltaSeqIdEnd }, - State1 #vqstate { delta = Delta1, - q3 = Q3b } - end - end. - -push_alphas_to_betas(Quota, State) -> - {Quota1, State1} = maybe_push_q1_to_betas(Quota, State), - {Quota2, State2} = maybe_push_q4_to_betas(Quota1, State1), - {Quota2, State2}. - -maybe_push_q1_to_betas(Quota, State = #vqstate { q1 = Q1 }) -> - maybe_push_alphas_to_betas( - fun queue:out/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q3 = Q3, delta = #delta { count = 0 } }) -> - State1 #vqstate { q1 = Q1a, - q3 = bpqueue:in(IndexOnDisk, MsgStatus, Q3) }; - (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q1a, State1 = #vqstate { q2 = Q2 }) -> - State1 #vqstate { q1 = Q1a, - q2 = bpqueue:in(IndexOnDisk, MsgStatus, Q2) } - end, Quota, Q1, State). - -maybe_push_q4_to_betas(Quota, State = #vqstate { q4 = Q4 }) -> - maybe_push_alphas_to_betas( - fun queue:out_r/1, - fun (MsgStatus = #msg_status { index_on_disk = IndexOnDisk }, - Q4a, State1 = #vqstate { q3 = Q3 }) -> - State1 #vqstate { q3 = bpqueue:in_r(IndexOnDisk, MsgStatus, Q3), - q4 = Q4a } - end, Quota, Q4, State). - -maybe_push_alphas_to_betas(_Generator, _Consumer, Quota, _Q, - State = #vqstate { - ram_msg_count = RamMsgCount, - target_ram_count = TargetRamCount }) - when Quota =:= 0 orelse - TargetRamCount =:= infinity orelse - TargetRamCount >= RamMsgCount -> - {Quota, State}; -maybe_push_alphas_to_betas(Generator, Consumer, Quota, Q, State) -> - case Generator(Q) of - {empty, _Q} -> - {Quota, State}; - {{value, MsgStatus}, Qa} -> - {MsgStatus1 = #msg_status { msg_on_disk = true, - index_on_disk = IndexOnDisk }, - State1 = #vqstate { ram_msg_count = RamMsgCount, - ram_index_count = RamIndexCount }} = - maybe_write_to_disk(true, false, MsgStatus, State), - MsgStatus2 = m(MsgStatus1 #msg_status { msg = undefined }), - RamIndexCount1 = RamIndexCount + one_if(not IndexOnDisk), - State2 = State1 #vqstate { ram_msg_count = RamMsgCount - 1, - ram_index_count = RamIndexCount1 }, - maybe_push_alphas_to_betas(Generator, Consumer, Quota - 1, Qa, - Consumer(MsgStatus2, Qa, State2)) - end. - -push_betas_to_deltas(State = #vqstate { q2 = Q2, - delta = Delta, - q3 = Q3, - index_state = IndexState, - ram_index_count = RamIndexCount }) -> - {Delta2, Q2a, RamIndexCount2, IndexState2} = - push_betas_to_deltas(fun (Q2MinSeqId) -> Q2MinSeqId end, - fun bpqueue:out/1, Q2, - RamIndexCount, IndexState), - {Delta3, Q3a, RamIndexCount3, IndexState3} = - push_betas_to_deltas(fun rabbit_queue_index:next_segment_boundary/1, - fun bpqueue:out_r/1, Q3, - RamIndexCount2, IndexState2), - Delta4 = combine_deltas(Delta3, combine_deltas(Delta, Delta2)), - State #vqstate { q2 = Q2a, - delta = Delta4, - q3 = Q3a, - index_state = IndexState3, - ram_index_count = RamIndexCount3 }. - -push_betas_to_deltas(LimitFun, Generator, Q, RamIndexCount, IndexState) -> - case bpqueue:out(Q) of - {empty, _Q} -> - {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk1, #msg_status { seq_id = MinSeqId }}, _Qa} -> - {{value, _IndexOnDisk2, #msg_status { seq_id = MaxSeqId }}, _Qb} = - bpqueue:out_r(Q), - Limit = LimitFun(MinSeqId), - case MaxSeqId < Limit of - true -> {?BLANK_DELTA, Q, RamIndexCount, IndexState}; - false -> {Len, Qc, RamIndexCount1, IndexState1} = - push_betas_to_deltas(Generator, Limit, Q, 0, - RamIndexCount, IndexState), - {#delta { start_seq_id = Limit, - count = Len, - end_seq_id = MaxSeqId + 1 }, - Qc, RamIndexCount1, IndexState1} - end - end. - -push_betas_to_deltas(Generator, Limit, Q, Count, RamIndexCount, IndexState) -> - case Generator(Q) of - {empty, _Q} -> - {Count, Q, RamIndexCount, IndexState}; - {{value, _IndexOnDisk, #msg_status { seq_id = SeqId }}, _Qa} - when SeqId < Limit -> - {Count, Q, RamIndexCount, IndexState}; - {{value, IndexOnDisk, MsgStatus}, Qa} -> - {RamIndexCount1, IndexState1} = - case IndexOnDisk of - true -> {RamIndexCount, IndexState}; - false -> {#msg_status { index_on_disk = true }, - IndexState2} = - maybe_write_index_to_disk(true, MsgStatus, - IndexState), - {RamIndexCount - 1, IndexState2} - end, - push_betas_to_deltas( - Generator, Limit, Qa, Count + 1, RamIndexCount1, IndexState1) - end. - -%%---------------------------------------------------------------------------- -%% Upgrading -%%---------------------------------------------------------------------------- - -multiple_routing_keys() -> - transform_storage( - fun ({basic_message, ExchangeName, Routing_Key, Content, - MsgId, Persistent}) -> - {ok, {basic_message, ExchangeName, [Routing_Key], Content, - MsgId, Persistent}}; - (_) -> {error, corrupt_message} - end), - ok. - - -%% Assumes message store is not running -transform_storage(TransformFun) -> - transform_store(?PERSISTENT_MSG_STORE, TransformFun), - transform_store(?TRANSIENT_MSG_STORE, TransformFun). - -transform_store(Store, TransformFun) -> - rabbit_msg_store:force_recovery(rabbit_mnesia:dir(), Store), - rabbit_msg_store:transform_dir(rabbit_mnesia:dir(), Store, TransformFun). diff --git a/src/rabbit_version.erl b/src/rabbit_version.erl deleted file mode 100644 index 400abc10..00000000 --- a/src/rabbit_version.erl +++ /dev/null @@ -1,172 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_version). - --export([recorded/0, matches/2, desired/0, desired_for_scope/1, - record_desired/0, record_desired_for_scope/1, - upgrades_required/1]). - -%% ------------------------------------------------------------------- --ifdef(use_specs). - --export_type([scope/0, step/0]). - --type(scope() :: atom()). --type(scope_version() :: [atom()]). --type(step() :: {atom(), atom()}). - --type(version() :: [atom()]). - --spec(recorded/0 :: () -> rabbit_types:ok_or_error2(version(), any())). --spec(matches/2 :: ([A], [A]) -> boolean()). --spec(desired/0 :: () -> version()). --spec(desired_for_scope/1 :: (scope()) -> scope_version()). --spec(record_desired/0 :: () -> 'ok'). --spec(record_desired_for_scope/1 :: - (scope()) -> rabbit_types:ok_or_error(any())). --spec(upgrades_required/1 :: - (scope()) -> rabbit_types:ok_or_error2([step()], any())). - --endif. -%% ------------------------------------------------------------------- - --define(VERSION_FILENAME, "schema_version"). --define(SCOPES, [mnesia, local]). - -%% ------------------------------------------------------------------- - -recorded() -> case rabbit_misc:read_term_file(schema_filename()) of - {ok, [V]} -> {ok, V}; - {error, _} = Err -> Err - end. - -record(V) -> ok = rabbit_misc:write_term_file(schema_filename(), [V]). - -recorded_for_scope(Scope) -> - case recorded() of - {error, _} = Err -> - Err; - {ok, Version} -> - {ok, case lists:keysearch(Scope, 1, categorise_by_scope(Version)) of - false -> []; - {value, {Scope, SV1}} -> SV1 - end} - end. - -record_for_scope(Scope, ScopeVersion) -> - case recorded() of - {error, _} = Err -> - Err; - {ok, Version} -> - Version1 = lists:keystore(Scope, 1, categorise_by_scope(Version), - {Scope, ScopeVersion}), - ok = record([Name || {_Scope, Names} <- Version1, Name <- Names]) - end. - -%% ------------------------------------------------------------------- - -matches(VerA, VerB) -> - lists:usort(VerA) =:= lists:usort(VerB). - -%% ------------------------------------------------------------------- - -desired() -> [Name || Scope <- ?SCOPES, Name <- desired_for_scope(Scope)]. - -desired_for_scope(Scope) -> with_upgrade_graph(fun heads/1, Scope). - -record_desired() -> record(desired()). - -record_desired_for_scope(Scope) -> - record_for_scope(Scope, desired_for_scope(Scope)). - -upgrades_required(Scope) -> - case recorded_for_scope(Scope) of - {error, enoent} -> - {error, version_not_available}; - {ok, CurrentHeads} -> - with_upgrade_graph( - fun (G) -> - case unknown_heads(CurrentHeads, G) of - [] -> {ok, upgrades_to_apply(CurrentHeads, G)}; - Unknown -> {error, {future_upgrades_found, Unknown}} - end - end, Scope) - end. - -%% ------------------------------------------------------------------- - -with_upgrade_graph(Fun, Scope) -> - case rabbit_misc:build_acyclic_graph( - fun (Module, Steps) -> vertices(Module, Steps, Scope) end, - fun (Module, Steps) -> edges(Module, Steps, Scope) end, - rabbit_misc:all_module_attributes(rabbit_upgrade)) of - {ok, G} -> try - Fun(G) - after - true = digraph:delete(G) - end; - {error, {vertex, duplicate, StepName}} -> - throw({error, {duplicate_upgrade_step, StepName}}); - {error, {edge, {bad_vertex, StepName}, _From, _To}} -> - throw({error, {dependency_on_unknown_upgrade_step, StepName}}); - {error, {edge, {bad_edge, StepNames}, _From, _To}} -> - throw({error, {cycle_in_upgrade_steps, StepNames}}) - end. - -vertices(Module, Steps, Scope0) -> - [{StepName, {Module, StepName}} || {StepName, Scope1, _Reqs} <- Steps, - Scope0 == Scope1]. - -edges(_Module, Steps, Scope0) -> - [{Require, StepName} || {StepName, Scope1, Requires} <- Steps, - Require <- Requires, - Scope0 == Scope1]. -unknown_heads(Heads, G) -> - [H || H <- Heads, digraph:vertex(G, H) =:= false]. - -upgrades_to_apply(Heads, G) -> - %% Take all the vertices which can reach the known heads. That's - %% everything we've already applied. Subtract that from all - %% vertices: that's what we have to apply. - Unsorted = sets:to_list( - sets:subtract( - sets:from_list(digraph:vertices(G)), - sets:from_list(digraph_utils:reaching(Heads, G)))), - %% Form a subgraph from that list and find a topological ordering - %% so we can invoke them in order. - [element(2, digraph:vertex(G, StepName)) || - StepName <- digraph_utils:topsort(digraph_utils:subgraph(G, Unsorted))]. - -heads(G) -> - lists:sort([V || V <- digraph:vertices(G), digraph:out_degree(G, V) =:= 0]). - -%% ------------------------------------------------------------------- - -categorise_by_scope(Version) when is_list(Version) -> - Categorised = - [{Scope, Name} || {_Module, Attributes} <- - rabbit_misc:all_module_attributes(rabbit_upgrade), - {Name, Scope, _Requires} <- Attributes, - lists:member(Name, Version)], - orddict:to_list( - lists:foldl(fun ({Scope, Name}, CatVersion) -> - rabbit_misc:orddict_cons(Scope, Name, CatVersion) - end, orddict:new(), Categorised)). - -dir() -> rabbit_mnesia:dir(). - -schema_filename() -> filename:join(dir(), ?VERSION_FILENAME). diff --git a/src/rabbit_vhost.erl b/src/rabbit_vhost.erl deleted file mode 100644 index 08d6c99a..00000000 --- a/src/rabbit_vhost.erl +++ /dev/null @@ -1,130 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_vhost). - --include("rabbit.hrl"). - -%%---------------------------------------------------------------------------- - --export([add/1, delete/1, exists/1, list/0, with/2]). --export([info/1, info/2, info_all/0, info_all/1]). - --ifdef(use_specs). - --spec(add/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(delete/1 :: (rabbit_types:vhost()) -> 'ok'). --spec(exists/1 :: (rabbit_types:vhost()) -> boolean()). --spec(list/0 :: () -> [rabbit_types:vhost()]). --spec(with/2 :: (rabbit_types:vhost(), rabbit_misc:thunk(A)) -> A). - --spec(info/1 :: (rabbit_types:vhost()) -> rabbit_types:infos()). --spec(info/2 :: (rabbit_types:vhost(), rabbit_types:info_keys()) - -> rabbit_types:infos()). --spec(info_all/0 :: () -> [rabbit_types:infos()]). --spec(info_all/1 :: (rabbit_types:info_keys()) -> [rabbit_types:infos()]). - --endif. - -%%---------------------------------------------------------------------------- - --define(INFO_KEYS, [name, tracing]). - -add(VHostPath) -> - R = rabbit_misc:execute_mnesia_transaction( - fun () -> - case mnesia:wread({rabbit_vhost, VHostPath}) of - [] -> ok = mnesia:write(rabbit_vhost, - #vhost{virtual_host = VHostPath}, - write); - [_] -> mnesia:abort({vhost_already_exists, VHostPath}) - end - end, - fun (ok, true) -> - ok; - (ok, false) -> - [rabbit_exchange:declare( - rabbit_misc:r(VHostPath, exchange, Name), - Type, true, false, false, []) || - {Name,Type} <- - [{<<"">>, direct}, - {<<"amq.direct">>, direct}, - {<<"amq.topic">>, topic}, - {<<"amq.match">>, headers}, %% per 0-9-1 pdf - {<<"amq.headers">>, headers}, %% per 0-9-1 xml - {<<"amq.fanout">>, fanout}, - {<<"amq.rabbitmq.trace">>, topic}]], - ok - end), - rabbit_log:info("Added vhost ~p~n", [VHostPath]), - R. - -delete(VHostPath) -> - %% FIXME: We are forced to delete the queues and exchanges outside - %% the TX below. Queue deletion involves sending messages to the queue - %% process, which in turn results in further mnesia actions and - %% eventually the termination of that process. Exchange deletion causes - %% notifications which must be sent outside the TX - [{ok,_} = rabbit_amqqueue:delete(Q, false, false) || - Q <- rabbit_amqqueue:list(VHostPath)], - [ok = rabbit_exchange:delete(Name, false) || - #exchange{name = Name} <- rabbit_exchange:list(VHostPath)], - R = rabbit_misc:execute_mnesia_transaction( - with(VHostPath, fun () -> - ok = internal_delete(VHostPath) - end)), - rabbit_log:info("Deleted vhost ~p~n", [VHostPath]), - R. - -internal_delete(VHostPath) -> - lists:foreach( - fun (Info) -> - ok = rabbit_auth_backend_internal:clear_permissions( - proplists:get_value(user, Info), VHostPath) - end, - rabbit_auth_backend_internal:list_vhost_permissions(VHostPath)), - ok = mnesia:delete({rabbit_vhost, VHostPath}), - ok. - -exists(VHostPath) -> - mnesia:dirty_read({rabbit_vhost, VHostPath}) /= []. - -list() -> - mnesia:dirty_all_keys(rabbit_vhost). - -with(VHostPath, Thunk) -> - fun () -> - case mnesia:read({rabbit_vhost, VHostPath}) of - [] -> - mnesia:abort({no_such_vhost, VHostPath}); - [_V] -> - Thunk() - end - end. - -%%---------------------------------------------------------------------------- - -infos(Items, X) -> [{Item, i(Item, X)} || Item <- Items]. - -i(name, VHost) -> VHost; -i(tracing, VHost) -> rabbit_trace:tracing(VHost); -i(Item, _) -> throw({bad_argument, Item}). - -info(VHost) -> infos(?INFO_KEYS, VHost). -info(VHost, Items) -> infos(Items, VHost). - -info_all() -> info_all(?INFO_KEYS). -info_all(Items) -> [info(VHost, Items) || VHost <- list()]. diff --git a/src/rabbit_writer.erl b/src/rabbit_writer.erl deleted file mode 100644 index ac3434d2..00000000 --- a/src/rabbit_writer.erl +++ /dev/null @@ -1,249 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(rabbit_writer). --include("rabbit.hrl"). --include("rabbit_framing.hrl"). - --export([start/5, start_link/5, mainloop/2, mainloop1/2]). --export([send_command/2, send_command/3, - send_command_sync/2, send_command_sync/3, - send_command_and_notify/4, send_command_and_notify/5]). --export([internal_send_command/4, internal_send_command/6]). - --record(wstate, {sock, channel, frame_max, protocol}). - --define(HIBERNATE_AFTER, 5000). - -%%--------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(start_link/5 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - non_neg_integer(), rabbit_types:protocol(), pid()) - -> rabbit_types:ok(pid())). --spec(send_command/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_sync/2 :: - (pid(), rabbit_framing:amqp_method_record()) -> 'ok'). --spec(send_command_sync/3 :: - (pid(), rabbit_framing:amqp_method_record(), rabbit_types:content()) - -> 'ok'). --spec(send_command_and_notify/4 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record()) - -> 'ok'). --spec(send_command_and_notify/5 :: - (pid(), pid(), pid(), rabbit_framing:amqp_method_record(), - rabbit_types:content()) - -> 'ok'). --spec(internal_send_command/4 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:protocol()) - -> 'ok'). --spec(internal_send_command/6 :: - (rabbit_net:socket(), rabbit_channel:channel_number(), - rabbit_framing:amqp_method_record(), rabbit_types:content(), - non_neg_integer(), rabbit_types:protocol()) - -> 'ok'). - --endif. - -%%--------------------------------------------------------------------------- - -start(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -start_link(Sock, Channel, FrameMax, Protocol, ReaderPid) -> - {ok, - proc_lib:spawn_link(?MODULE, mainloop, [ReaderPid, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}])}. - -mainloop(ReaderPid, State) -> - try - mainloop1(ReaderPid, State) - catch - exit:Error -> ReaderPid ! {channel_exit, #wstate.channel, Error} - end, - done. - -mainloop1(ReaderPid, State) -> - receive - Message -> ?MODULE:mainloop1(ReaderPid, handle_message(Message, State)) - after ?HIBERNATE_AFTER -> - erlang:hibernate(?MODULE, mainloop, [ReaderPid, State]) - end. - -handle_message({send_command, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - State; -handle_message({send_command, MethodRecord, Content}, State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord}}, State) -> - ok = internal_send_command_async(MethodRecord, State), - gen_server:reply(From, ok), - State; -handle_message({'$gen_call', From, {send_command_sync, MethodRecord, Content}}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - gen_server:reply(From, ok), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord}, State) -> - ok = internal_send_command_async(MethodRecord, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({send_command_and_notify, QPid, ChPid, MethodRecord, Content}, - State) -> - ok = internal_send_command_async(MethodRecord, Content, State), - rabbit_amqqueue:notify_sent(QPid, ChPid), - State; -handle_message({inet_reply, _, ok}, State) -> - State; -handle_message({inet_reply, _, Status}, _State) -> - exit({writer, send_failed, Status}); -handle_message(Message, _State) -> - exit({writer, message_not_understood, Message}). - -%%--------------------------------------------------------------------------- - -send_command(W, MethodRecord) -> - W ! {send_command, MethodRecord}, - ok. - -send_command(W, MethodRecord, Content) -> - W ! {send_command, MethodRecord, Content}, - ok. - -send_command_sync(W, MethodRecord) -> - call(W, {send_command_sync, MethodRecord}). - -send_command_sync(W, MethodRecord, Content) -> - call(W, {send_command_sync, MethodRecord, Content}). - -send_command_and_notify(W, Q, ChPid, MethodRecord) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord}, - ok. - -send_command_and_notify(W, Q, ChPid, MethodRecord, Content) -> - W ! {send_command_and_notify, Q, ChPid, MethodRecord, Content}, - ok. - -%%--------------------------------------------------------------------------- - -call(Pid, Msg) -> - {ok, Res} = gen:call(Pid, '$gen_call', Msg, infinity), - Res. - -%%--------------------------------------------------------------------------- - -assemble_frame(Channel, MethodRecord, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, none), - rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol). - -assemble_frames(Channel, MethodRecord, Content, FrameMax, Protocol) -> - ?LOGMESSAGE(out, Channel, MethodRecord, Content), - MethodName = rabbit_misc:method_record_type(MethodRecord), - true = Protocol:method_has_content(MethodName), % assertion - MethodFrame = rabbit_binary_generator:build_simple_method_frame( - Channel, MethodRecord, Protocol), - ContentFrames = rabbit_binary_generator:build_simple_content_frames( - Channel, Content, FrameMax, Protocol), - [MethodFrame | ContentFrames]. - -%% We optimise delivery of small messages. Content-bearing methods -%% require at least three frames. Small messages always fit into -%% that. We hand their frames to the Erlang network functions in one -%% go, which may lead to somewhat more efficient processing in the -%% runtime and a greater chance of coalescing into fewer TCP packets. -%% -%% By contrast, for larger messages, split across many frames, we want -%% to allow interleaving of frames on different channels. Hence we -%% hand them to the Erlang network functions one frame at a time. -send_frames(Fun, Sock, Frames) when length(Frames) =< 3 -> - Fun(Sock, Frames); -send_frames(Fun, Sock, Frames) -> - lists:foldl(fun (Frame, ok) -> Fun(Sock, Frame); - (_Frame, Other) -> Other - end, ok, Frames). - -tcp_send(Sock, Data) -> - rabbit_misc:throw_on_error(inet_error, - fun () -> rabbit_net:send(Sock, Data) end). - -internal_send_command(Sock, Channel, MethodRecord, Protocol) -> - ok = tcp_send(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command(Sock, Channel, MethodRecord, Content, FrameMax, - Protocol) -> - ok = send_frames(fun tcp_send/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -%% gen_tcp:send/2 does a selective receive of {inet_reply, Sock, -%% Status} to obtain the result. That is bad when it is called from -%% the writer since it requires scanning of the writers possibly quite -%% large message queue. -%% -%% So instead we lift the code from prim_inet:send/2, which is what -%% gen_tcp:send/2 calls, do the first half here and then just process -%% the result code in handle_message/2 as and when it arrives. -%% -%% This means we may end up happily sending data down a closed/broken -%% socket, but that's ok since a) data in the buffers will be lost in -%% any case (so qualitatively we are no worse off than if we used -%% gen_tcp:send/2), and b) we do detect the changed socket status -%% eventually, i.e. when we get round to handling the result code. -%% -%% Also note that the port has bounded buffers and port_command blocks -%% when these are full. So the fact that we process the result -%% asynchronously does not impact flow control. -internal_send_command_async(MethodRecord, - #wstate{sock = Sock, - channel = Channel, - protocol = Protocol}) -> - ok = port_cmd(Sock, assemble_frame(Channel, MethodRecord, Protocol)). - -internal_send_command_async(MethodRecord, Content, - #wstate{sock = Sock, - channel = Channel, - frame_max = FrameMax, - protocol = Protocol}) -> - ok = send_frames(fun port_cmd/2, Sock, - assemble_frames(Channel, MethodRecord, - Content, FrameMax, Protocol)). - -port_cmd(Sock, Data) -> - true = try rabbit_net:port_command(Sock, Data) - catch error:Error -> exit({writer, send_failed, Error}) - end, - ok. diff --git a/src/supervisor2.erl b/src/supervisor2.erl deleted file mode 100644 index ec1ee9cd..00000000 --- a/src/supervisor2.erl +++ /dev/null @@ -1,1018 +0,0 @@ -%% This file is a copy of supervisor.erl from the R13B-3 Erlang/OTP -%% distribution, with the following modifications: -%% -%% 1) the module name is supervisor2 -%% -%% 2) there is a new strategy called -%% simple_one_for_one_terminate. This is exactly the same as for -%% simple_one_for_one, except that children *are* explicitly -%% terminated as per the shutdown component of the child_spec. -%% -%% 3) child specifications can contain, as the restart type, a tuple -%% {permanent, Delay} | {transient, Delay} where Delay >= 0. The -%% delay, in seconds, indicates what should happen if a child, upon -%% being restarted, exceeds the MaxT and MaxR parameters. Thus, if -%% a child exits, it is restarted as normal. If it exits -%% sufficiently quickly and often to exceed the boundaries set by -%% the MaxT and MaxR parameters, and a Delay is specified, then -%% rather than stopping the supervisor, the supervisor instead -%% continues and tries to start up the child again, Delay seconds -%% later. -%% -%% Note that you can never restart more frequently than the MaxT -%% and MaxR parameters allow: i.e. you must wait until *both* the -%% Delay has passed *and* the MaxT and MaxR parameters allow the -%% child to be restarted. -%% -%% Also note that the Delay is a *minimum*. There is no guarantee -%% that the child will be restarted within that time, especially if -%% other processes are dying and being restarted at the same time - -%% essentially we have to wait for the delay to have passed and for -%% the MaxT and MaxR parameters to permit the child to be -%% restarted. This may require waiting for longer than Delay. -%% -%% 4) Added an 'intrinsic' restart type. Like the transient type, this -%% type means the child should only be restarted if the child exits -%% abnormally. Unlike the transient type, if the child exits -%% normally, the supervisor itself also exits normally. If the -%% child is a supervisor and it exits normally (i.e. with reason of -%% 'shutdown') then the child's parent also exits normally. -%% -%% 5) normal, and {shutdown, _} exit reasons are all treated the same -%% (i.e. are regarded as normal exits) -%% -%% All modifications are (C) 2010-2011 VMware, Inc. -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. -%% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. -%% -%% %CopyrightEnd% -%% --module(supervisor2). - --behaviour(gen_server). - -%% External exports --export([start_link/2,start_link/3, - start_child/2, restart_child/2, - delete_child/2, terminate_child/2, - which_children/1, find_child/2, - check_childspecs/1]). - --export([behaviour_info/1]). - -%% Internal exports --export([init/1, handle_call/3, handle_info/2, terminate/2, code_change/3]). --export([handle_cast/2]). --export([delayed_restart/2]). - --define(DICT, dict). - --record(state, {name, - strategy, - children = [], - dynamics = ?DICT:new(), - intensity, - period, - restarts = [], - module, - args}). - --record(child, {pid = undefined, % pid is undefined when child is not running - name, - mfa, - restart_type, - shutdown, - child_type, - modules = []}). - --define(is_simple(State), State#state.strategy =:= simple_one_for_one orelse - State#state.strategy =:= simple_one_for_one_terminate). --define(is_terminate_simple(State), - State#state.strategy =:= simple_one_for_one_terminate). - -behaviour_info(callbacks) -> - [{init,1}]; -behaviour_info(_Other) -> - undefined. - -%%% --------------------------------------------------- -%%% This is a general process supervisor built upon gen_server.erl. -%%% Servers/processes should/could also be built using gen_server.erl. -%%% SupName = {local, atom()} | {global, atom()}. -%%% --------------------------------------------------- -start_link(Mod, Args) -> - gen_server:start_link(?MODULE, {self, Mod, Args}, []). - -start_link(SupName, Mod, Args) -> - gen_server:start_link(SupName, ?MODULE, {SupName, Mod, Args}, []). - -%%% --------------------------------------------------- -%%% Interface functions. -%%% --------------------------------------------------- -start_child(Supervisor, ChildSpec) -> - call(Supervisor, {start_child, ChildSpec}). - -restart_child(Supervisor, Name) -> - call(Supervisor, {restart_child, Name}). - -delete_child(Supervisor, Name) -> - call(Supervisor, {delete_child, Name}). - -%%----------------------------------------------------------------- -%% Func: terminate_child/2 -%% Returns: ok | {error, Reason} -%% Note that the child is *always* terminated in some -%% way (maybe killed). -%%----------------------------------------------------------------- -terminate_child(Supervisor, Name) -> - call(Supervisor, {terminate_child, Name}). - -which_children(Supervisor) -> - call(Supervisor, which_children). - -find_child(Supervisor, Name) -> - [Pid || {Name1, Pid, _Type, _Modules} <- which_children(Supervisor), - Name1 =:= Name]. - -call(Supervisor, Req) -> - gen_server:call(Supervisor, Req, infinity). - -check_childspecs(ChildSpecs) when is_list(ChildSpecs) -> - case check_startspec(ChildSpecs) of - {ok, _} -> ok; - Error -> {error, Error} - end; -check_childspecs(X) -> {error, {badarg, X}}. - -delayed_restart(Supervisor, RestartDetails) -> - gen_server:cast(Supervisor, {delayed_restart, RestartDetails}). - -%%% --------------------------------------------------- -%%% -%%% Initialize the supervisor. -%%% -%%% --------------------------------------------------- -init({SupName, Mod, Args}) -> - process_flag(trap_exit, true), - case Mod:init(Args) of - {ok, {SupFlags, StartSpec}} -> - case init_state(SupName, SupFlags, Mod, Args) of - {ok, State} when ?is_simple(State) -> - init_dynamic(State, StartSpec); - {ok, State} -> - init_children(State, StartSpec); - Error -> - {stop, {supervisor_data, Error}} - end; - ignore -> - ignore; - Error -> - {stop, {bad_return, {Mod, init, Error}}} - end. - -init_children(State, StartSpec) -> - SupName = State#state.name, - case check_startspec(StartSpec) of - {ok, Children} -> - case start_children(Children, SupName) of - {ok, NChildren} -> - {ok, State#state{children = NChildren}}; - {error, NChildren} -> - terminate_children(NChildren, SupName), - {stop, shutdown} - end; - Error -> - {stop, {start_spec, Error}} - end. - -init_dynamic(State, [StartSpec]) -> - case check_startspec([StartSpec]) of - {ok, Children} -> - {ok, State#state{children = Children}}; - Error -> - {stop, {start_spec, Error}} - end; -init_dynamic(_State, StartSpec) -> - {stop, {bad_start_spec, StartSpec}}. - -%%----------------------------------------------------------------- -%% Func: start_children/2 -%% Args: Children = [#child] in start order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Purpose: Start all children. The new list contains #child's -%% with pids. -%% Returns: {ok, NChildren} | {error, NChildren} -%% NChildren = [#child] in termination order (reversed -%% start order) -%%----------------------------------------------------------------- -start_children(Children, SupName) -> start_children(Children, [], SupName). - -start_children([Child|Chs], NChildren, SupName) -> - case do_start_child(SupName, Child) of - {ok, Pid} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {ok, Pid, _Extra} -> - start_children(Chs, [Child#child{pid = Pid}|NChildren], SupName); - {error, Reason} -> - report_error(start_error, Reason, Child, SupName), - {error, lists:reverse(Chs) ++ [Child | NChildren]} - end; -start_children([], NChildren, _SupName) -> - {ok, NChildren}. - -do_start_child(SupName, Child) -> - #child{mfa = {M, F, A}} = Child, - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - NChild = Child#child{pid = Pid}, - report_progress(NChild, SupName), - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, What} -> {error, What}; - What -> {error, What} - end. - -do_start_child_i(M, F, A) -> - case catch apply(M, F, A) of - {ok, Pid} when is_pid(Pid) -> - {ok, Pid}; - {ok, Pid, Extra} when is_pid(Pid) -> - {ok, Pid, Extra}; - ignore -> - {ok, undefined}; - {error, Error} -> - {error, Error}; - What -> - {error, What} - end. - - -%%% --------------------------------------------------- -%%% -%%% Callback functions. -%%% -%%% --------------------------------------------------- -handle_call({start_child, EArgs}, _From, State) when ?is_simple(State) -> - #child{mfa = {M, F, A}} = hd(State#state.children), - Args = A ++ EArgs, - case do_start_child_i(M, F, Args) of - {ok, Pid} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = State#state{dynamics = - ?DICT:store(Pid, Args, State#state.dynamics)}, - {reply, {ok, Pid, Extra}, NState}; - What -> - {reply, What, State} - end; - -%%% The requests terminate_child, delete_child and restart_child are -%%% invalid for simple_one_for_one and simple_one_for_one_terminate -%%% supervisors. -handle_call({_Req, _Data}, _From, State) when ?is_simple(State) -> - {reply, {error, State#state.strategy}, State}; - -handle_call({start_child, ChildSpec}, _From, State) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - {Resp, NState} = handle_start_child(Child, State), - {reply, Resp, NState}; - What -> - {reply, {error, What}, State} - end; - -handle_call({restart_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid}, NState}; - {ok, Pid, Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {reply, {ok, Pid, Extra}, NState}; - Error -> - {reply, Error, State} - end; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({delete_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} when Child#child.pid =:= undefined -> - NState = remove_child(Child, State), - {reply, ok, NState}; - {value, _} -> - {reply, {error, running}, State}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call({terminate_child, Name}, _From, State) -> - case get_child(Name, State) of - {value, Child} -> - NChild = do_terminate(Child, State#state.name), - {reply, ok, replace_child(NChild, State)}; - _ -> - {reply, {error, not_found}, State} - end; - -handle_call(which_children, _From, State) when ?is_simple(State) -> - [#child{child_type = CT, modules = Mods}] = State#state.children, - Reply = lists:map(fun ({Pid, _}) -> {undefined, Pid, CT, Mods} end, - ?DICT:to_list(State#state.dynamics)), - {reply, Reply, State}; - -handle_call(which_children, _From, State) -> - Resp = - lists:map(fun (#child{pid = Pid, name = Name, - child_type = ChildType, modules = Mods}) -> - {Name, Pid, ChildType, Mods} - end, - State#state.children), - {reply, Resp, State}. - - -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) - when ?is_simple(State) -> - {ok, NState} = do_restart(RestartType, Reason, Child, State), - {noreply, NState}; -handle_cast({delayed_restart, {RestartType, Reason, Child}}, State) -> - case get_child(Child#child.name, State) of - {value, Child1} -> - {ok, NState} = do_restart(RestartType, Reason, Child1, State), - {noreply, NState}; - _ -> - {noreply, State} - end; - -%%% Hopefully cause a function-clause as there is no API function -%%% that utilizes cast. -handle_cast(null, State) -> - error_logger:error_msg("ERROR: Supervisor received cast-message 'null'~n", - []), - - {noreply, State}. - -%% -%% Take care of terminated children. -%% -handle_info({'EXIT', Pid, Reason}, State) -> - case restart_child(Pid, Reason, State) of - {ok, State1} -> - {noreply, State1}; - {shutdown, State1} -> - {stop, shutdown, State1} - end; - -handle_info(Msg, State) -> - error_logger:error_msg("Supervisor received unexpected message: ~p~n", - [Msg]), - {noreply, State}. -%% -%% Terminate this server. -%% -terminate(_Reason, State) when ?is_terminate_simple(State) -> - terminate_simple_children( - hd(State#state.children), State#state.dynamics, State#state.name), - ok; -terminate(_Reason, State) -> - terminate_children(State#state.children, State#state.name), - ok. - -%% -%% Change code for the supervisor. -%% Call the new call-back module and fetch the new start specification. -%% Combine the new spec. with the old. If the new start spec. is -%% not valid the code change will not succeed. -%% Use the old Args as argument to Module:init/1. -%% NOTE: This requires that the init function of the call-back module -%% does not have any side effects. -%% -code_change(_, State, _) -> - case (State#state.module):init(State#state.args) of - {ok, {SupFlags, StartSpec}} -> - case catch check_flags(SupFlags) of - ok -> - {Strategy, MaxIntensity, Period} = SupFlags, - update_childspec(State#state{strategy = Strategy, - intensity = MaxIntensity, - period = Period}, - StartSpec); - Error -> - {error, Error} - end; - ignore -> - {ok, State}; - Error -> - Error - end. - -check_flags({Strategy, MaxIntensity, Period}) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - ok; -check_flags(What) -> - {bad_flags, What}. - -update_childspec(State, StartSpec) when ?is_simple(State) -> - case check_startspec(StartSpec) of - {ok, [Child]} -> - {ok, State#state{children = [Child]}}; - Error -> - {error, Error} - end; - -update_childspec(State, StartSpec) -> - case check_startspec(StartSpec) of - {ok, Children} -> - OldC = State#state.children, % In reverse start order ! - NewC = update_childspec1(OldC, Children, []), - {ok, State#state{children = NewC}}; - Error -> - {error, Error} - end. - -update_childspec1([Child|OldC], Children, KeepOld) -> - case update_chsp(Child, Children) of - {ok,NewChildren} -> - update_childspec1(OldC, NewChildren, KeepOld); - false -> - update_childspec1(OldC, Children, [Child|KeepOld]) - end; -update_childspec1([], Children, KeepOld) -> - % Return them in (keeped) reverse start order. - lists:reverse(Children ++ KeepOld). - -update_chsp(OldCh, Children) -> - case lists:map(fun (Ch) when OldCh#child.name =:= Ch#child.name -> - Ch#child{pid = OldCh#child.pid}; - (Ch) -> - Ch - end, - Children) of - Children -> - false; % OldCh not found in new spec. - NewC -> - {ok, NewC} - end. - -%%% --------------------------------------------------- -%%% Start a new child. -%%% --------------------------------------------------- - -handle_start_child(Child, State) -> - case get_child(Child#child.name, State) of - false -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - Children = State#state.children, - {{ok, Pid}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {ok, Pid, Extra} -> - Children = State#state.children, - {{ok, Pid, Extra}, - State#state{children = - [Child#child{pid = Pid}|Children]}}; - {error, What} -> - {{error, {What, Child}}, State} - end; - {value, OldChild} when OldChild#child.pid =/= undefined -> - {{error, {already_started, OldChild#child.pid}}, State}; - {value, _OldChild} -> - {{error, already_present}, State} - end. - -%%% --------------------------------------------------- -%%% Restart. A process has terminated. -%%% Returns: {ok, #state} | {shutdown, #state} -%%% --------------------------------------------------- - -restart_child(Pid, Reason, State) when ?is_simple(State) -> - case ?DICT:find(Pid, State#state.dynamics) of - {ok, Args} -> - [Child] = State#state.children, - RestartType = Child#child.restart_type, - {M, F, _} = Child#child.mfa, - NChild = Child#child{pid = Pid, mfa = {M, F, Args}}, - do_restart(RestartType, Reason, NChild, State); - error -> - {ok, State} - end; -restart_child(Pid, Reason, State) -> - Children = State#state.children, - case lists:keysearch(Pid, #child.pid, Children) of - {value, Child} -> - RestartType = Child#child.restart_type, - do_restart(RestartType, Reason, Child, State); - _ -> - {ok, State} - end. - -do_restart({RestartType, Delay}, Reason, Child, State) -> - case restart1(Child, State) of - {ok, NState} -> - {ok, NState}; - {terminate, NState} -> - {ok, _TRef} = timer:apply_after( - trunc(Delay*1000), ?MODULE, delayed_restart, - [self(), {{RestartType, Delay}, Reason, Child}]), - {ok, state_del_child(Child, NState)} - end; -do_restart(permanent, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(Type, normal, Child, State) -> - del_child_and_maybe_shutdown(Type, Child, State); -do_restart(Type, {shutdown, _}, Child, State) -> - del_child_and_maybe_shutdown(Type, Child, State); -do_restart(Type, shutdown, Child = #child{child_type = supervisor}, State) -> - del_child_and_maybe_shutdown(Type, Child, State); -do_restart(Type, Reason, Child, State) when Type =:= transient orelse - Type =:= intrinsic -> - report_error(child_terminated, Reason, Child, State#state.name), - restart(Child, State); -do_restart(temporary, Reason, Child, State) -> - report_error(child_terminated, Reason, Child, State#state.name), - NState = state_del_child(Child, State), - {ok, NState}. - -del_child_and_maybe_shutdown(intrinsic, Child, State) -> - {shutdown, state_del_child(Child, State)}; -del_child_and_maybe_shutdown(_, Child, State) -> - {ok, state_del_child(Child, State)}. - -restart(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart/2); - {terminate, NState} -> - report_error(shutdown, reached_max_restart_intensity, - Child, State#state.name), - {shutdown, state_del_child(Child, NState)} - end. - -restart1(Child, State) -> - case add_restart(State) of - {ok, NState} -> - restart(NState#state.strategy, Child, NState, fun restart1/2); - {terminate, _NState} -> - %% we've reached the max restart intensity, but the - %% add_restart will have added to the restarts - %% field. Given we don't want to die here, we need to go - %% back to the old restarts field otherwise we'll never - %% attempt to restart later. - {terminate, State} - end. - -restart(Strategy, Child, State, Restart) - when Strategy =:= simple_one_for_one orelse - Strategy =:= simple_one_for_one_terminate -> - #child{mfa = {M, F, A}} = Child, - Dynamics = ?DICT:erase(Child#child.pid, State#state.dynamics), - case do_start_child_i(M, F, A) of - {ok, Pid} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {ok, Pid, _Extra} -> - NState = State#state{dynamics = ?DICT:store(Pid, A, Dynamics)}, - {ok, NState}; - {error, Error} -> - report_error(start_error, Error, Child, State#state.name), - Restart(Child, State) - end; -restart(one_for_one, Child, State, Restart) -> - case do_start_child(State#state.name, Child) of - {ok, Pid} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {ok, Pid, _Extra} -> - NState = replace_child(Child#child{pid = Pid}, State), - {ok, NState}; - {error, Reason} -> - report_error(start_error, Reason, Child, State#state.name), - Restart(Child, State) - end; -restart(rest_for_one, Child, State, Restart) -> - {ChAfter, ChBefore} = split_child(Child#child.pid, State#state.children), - ChAfter2 = terminate_children(ChAfter, State#state.name), - case start_children(ChAfter2, State#state.name) of - {ok, ChAfter3} -> - {ok, State#state{children = ChAfter3 ++ ChBefore}}; - {error, ChAfter3} -> - Restart(Child, State#state{children = ChAfter3 ++ ChBefore}) - end; -restart(one_for_all, Child, State, Restart) -> - Children1 = del_child(Child#child.pid, State#state.children), - Children2 = terminate_children(Children1, State#state.name), - case start_children(Children2, State#state.name) of - {ok, NChs} -> - {ok, State#state{children = NChs}}; - {error, NChs} -> - Restart(Child, State#state{children = NChs}) - end. - -%%----------------------------------------------------------------- -%% Func: terminate_children/2 -%% Args: Children = [#child] in termination order -%% SupName = {local, atom()} | {global, atom()} | {pid(),Mod} -%% Returns: NChildren = [#child] in -%% startup order (reversed termination order) -%%----------------------------------------------------------------- -terminate_children(Children, SupName) -> - terminate_children(Children, SupName, []). - -terminate_children([Child | Children], SupName, Res) -> - NChild = do_terminate(Child, SupName), - terminate_children(Children, SupName, [NChild | Res]); -terminate_children([], _SupName, Res) -> - Res. - -terminate_simple_children(Child, Dynamics, SupName) -> - dict:fold(fun (Pid, _Args, _Any) -> - do_terminate(Child#child{pid = Pid}, SupName) - end, ok, Dynamics), - ok. - -do_terminate(Child, SupName) when Child#child.pid =/= undefined -> - ReportError = fun (Reason) -> - report_error(shutdown_error, Reason, Child, SupName) - end, - case shutdown(Child#child.pid, Child#child.shutdown) of - ok -> - ok; - {error, normal} -> - case Child#child.restart_type of - permanent -> ReportError(normal); - {permanent, _Delay} -> ReportError(normal); - _ -> ok - end; - {error, OtherReason} -> - ReportError(OtherReason) - end, - Child#child{pid = undefined}; -do_terminate(Child, _SupName) -> - Child. - -%%----------------------------------------------------------------- -%% Shutdowns a child. We must check the EXIT value -%% of the child, because it might have died with another reason than -%% the wanted. In that case we want to report the error. We put a -%% monitor on the child an check for the 'DOWN' message instead of -%% checking for the 'EXIT' message, because if we check the 'EXIT' -%% message a "naughty" child, who does unlink(Sup), could hang the -%% supervisor. -%% Returns: ok | {error, OtherReason} (this should be reported) -%%----------------------------------------------------------------- -shutdown(Pid, brutal_kill) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, kill), - receive - {'DOWN', _MRef, process, Pid, killed} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end; - {error, Reason} -> - {error, Reason} - end; - -shutdown(Pid, Time) -> - - case monitor_child(Pid) of - ok -> - exit(Pid, shutdown), %% Try to shutdown gracefully - receive - {'DOWN', _MRef, process, Pid, shutdown} -> - ok; - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - after Time -> - exit(Pid, kill), %% Force termination. - receive - {'DOWN', _MRef, process, Pid, OtherReason} -> - {error, OtherReason} - end - end; - {error, Reason} -> - {error, Reason} - end. - -%% Help function to shutdown/2 switches from link to monitor approach -monitor_child(Pid) -> - - %% Do the monitor operation first so that if the child dies - %% before the monitoring is done causing a 'DOWN'-message with - %% reason noproc, we will get the real reason in the 'EXIT'-message - %% unless a naughty child has already done unlink... - erlang:monitor(process, Pid), - unlink(Pid), - - receive - %% If the child dies before the unlik we must empty - %% the mail-box of the 'EXIT'-message and the 'DOWN'-message. - {'EXIT', Pid, Reason} -> - receive - {'DOWN', _, process, Pid, _} -> - {error, Reason} - end - after 0 -> - %% If a naughty child did unlink and the child dies before - %% monitor the result will be that shutdown/2 receives a - %% 'DOWN'-message with reason noproc. - %% If the child should die after the unlink there - %% will be a 'DOWN'-message with a correct reason - %% that will be handled in shutdown/2. - ok - end. - - -%%----------------------------------------------------------------- -%% Child/State manipulating functions. -%%----------------------------------------------------------------- -state_del_child(#child{pid = Pid}, State) when ?is_simple(State) -> - NDynamics = ?DICT:erase(Pid, State#state.dynamics), - State#state{dynamics = NDynamics}; -state_del_child(Child, State) -> - NChildren = del_child(Child#child.name, State#state.children), - State#state{children = NChildren}. - -del_child(Name, [Ch|Chs]) when Ch#child.name =:= Name -> - [Ch#child{pid = undefined} | Chs]; -del_child(Pid, [Ch|Chs]) when Ch#child.pid =:= Pid -> - [Ch#child{pid = undefined} | Chs]; -del_child(Name, [Ch|Chs]) -> - [Ch|del_child(Name, Chs)]; -del_child(_, []) -> - []. - -%% Chs = [S4, S3, Ch, S1, S0] -%% Ret: {[S4, S3, Ch], [S1, S0]} -split_child(Name, Chs) -> - split_child(Name, Chs, []). - -split_child(Name, [Ch|Chs], After) when Ch#child.name =:= Name -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Pid, [Ch|Chs], After) when Ch#child.pid =:= Pid -> - {lists:reverse([Ch#child{pid = undefined} | After]), Chs}; -split_child(Name, [Ch|Chs], After) -> - split_child(Name, Chs, [Ch | After]); -split_child(_, [], After) -> - {lists:reverse(After), []}. - -get_child(Name, State) -> - lists:keysearch(Name, #child.name, State#state.children). -replace_child(Child, State) -> - Chs = do_replace_child(Child, State#state.children), - State#state{children = Chs}. - -do_replace_child(Child, [Ch|Chs]) when Ch#child.name =:= Child#child.name -> - [Child | Chs]; -do_replace_child(Child, [Ch|Chs]) -> - [Ch|do_replace_child(Child, Chs)]. - -remove_child(Child, State) -> - Chs = lists:keydelete(Child#child.name, #child.name, State#state.children), - State#state{children = Chs}. - -%%----------------------------------------------------------------- -%% Func: init_state/4 -%% Args: SupName = {local, atom()} | {global, atom()} | self -%% Type = {Strategy, MaxIntensity, Period} -%% Strategy = one_for_one | one_for_all | simple_one_for_one | -%% rest_for_one -%% MaxIntensity = integer() -%% Period = integer() -%% Mod :== atom() -%% Arsg :== term() -%% Purpose: Check that Type is of correct type (!) -%% Returns: {ok, #state} | Error -%%----------------------------------------------------------------- -init_state(SupName, Type, Mod, Args) -> - case catch init_state1(SupName, Type, Mod, Args) of - {ok, State} -> - {ok, State}; - Error -> - Error - end. - -init_state1(SupName, {Strategy, MaxIntensity, Period}, Mod, Args) -> - validStrategy(Strategy), - validIntensity(MaxIntensity), - validPeriod(Period), - {ok, #state{name = supname(SupName,Mod), - strategy = Strategy, - intensity = MaxIntensity, - period = Period, - module = Mod, - args = Args}}; -init_state1(_SupName, Type, _, _) -> - {invalid_type, Type}. - -validStrategy(simple_one_for_one_terminate) -> true; -validStrategy(simple_one_for_one) -> true; -validStrategy(one_for_one) -> true; -validStrategy(one_for_all) -> true; -validStrategy(rest_for_one) -> true; -validStrategy(What) -> throw({invalid_strategy, What}). - -validIntensity(Max) when is_integer(Max), - Max >= 0 -> true; -validIntensity(What) -> throw({invalid_intensity, What}). - -validPeriod(Period) when is_integer(Period), - Period > 0 -> true; -validPeriod(What) -> throw({invalid_period, What}). - -supname(self,Mod) -> {self(),Mod}; -supname(N,_) -> N. - -%%% ------------------------------------------------------ -%%% Check that the children start specification is valid. -%%% Shall be a six (6) tuple -%%% {Name, Func, RestartType, Shutdown, ChildType, Modules} -%%% where Name is an atom -%%% Func is {Mod, Fun, Args} == {atom, atom, list} -%%% RestartType is permanent | temporary | transient | -%%% intrinsic | {permanent, Delay} | -%%% {transient, Delay} where Delay >= 0 -%%% Shutdown = integer() | infinity | brutal_kill -%%% ChildType = supervisor | worker -%%% Modules = [atom()] | dynamic -%%% Returns: {ok, [#child]} | Error -%%% ------------------------------------------------------ - -check_startspec(Children) -> check_startspec(Children, []). - -check_startspec([ChildSpec|T], Res) -> - case check_childspec(ChildSpec) of - {ok, Child} -> - case lists:keymember(Child#child.name, #child.name, Res) of - true -> {duplicate_child_name, Child#child.name}; - false -> check_startspec(T, [Child | Res]) - end; - Error -> Error - end; -check_startspec([], Res) -> - {ok, lists:reverse(Res)}. - -check_childspec({Name, Func, RestartType, Shutdown, ChildType, Mods}) -> - catch check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods); -check_childspec(X) -> {invalid_child_spec, X}. - -check_childspec(Name, Func, RestartType, Shutdown, ChildType, Mods) -> - validName(Name), - validFunc(Func), - validRestartType(RestartType), - validChildType(ChildType), - validShutdown(Shutdown, ChildType), - validMods(Mods), - {ok, #child{name = Name, mfa = Func, restart_type = RestartType, - shutdown = Shutdown, child_type = ChildType, modules = Mods}}. - -validChildType(supervisor) -> true; -validChildType(worker) -> true; -validChildType(What) -> throw({invalid_child_type, What}). - -validName(_Name) -> true. - -validFunc({M, F, A}) when is_atom(M), - is_atom(F), - is_list(A) -> true; -validFunc(Func) -> throw({invalid_mfa, Func}). - -validRestartType(permanent) -> true; -validRestartType(temporary) -> true; -validRestartType(transient) -> true; -validRestartType(intrinsic) -> true; -validRestartType({permanent, Delay}) -> validDelay(Delay); -validRestartType({transient, Delay}) -> validDelay(Delay); -validRestartType(RestartType) -> throw({invalid_restart_type, - RestartType}). - -validDelay(Delay) when is_number(Delay), - Delay >= 0 -> true; -validDelay(What) -> throw({invalid_delay, What}). - -validShutdown(Shutdown, _) - when is_integer(Shutdown), Shutdown > 0 -> true; -validShutdown(infinity, supervisor) -> true; -validShutdown(brutal_kill, _) -> true; -validShutdown(Shutdown, _) -> throw({invalid_shutdown, Shutdown}). - -validMods(dynamic) -> true; -validMods(Mods) when is_list(Mods) -> - lists:foreach(fun (Mod) -> - if - is_atom(Mod) -> ok; - true -> throw({invalid_module, Mod}) - end - end, - Mods); -validMods(Mods) -> throw({invalid_modules, Mods}). - -%%% ------------------------------------------------------ -%%% Add a new restart and calculate if the max restart -%%% intensity has been reached (in that case the supervisor -%%% shall terminate). -%%% All restarts accured inside the period amount of seconds -%%% are kept in the #state.restarts list. -%%% Returns: {ok, State'} | {terminate, State'} -%%% ------------------------------------------------------ - -add_restart(State) -> - I = State#state.intensity, - P = State#state.period, - R = State#state.restarts, - Now = erlang:now(), - R1 = add_restart([Now|R], Now, P), - State1 = State#state{restarts = R1}, - case length(R1) of - CurI when CurI =< I -> - {ok, State1}; - _ -> - {terminate, State1} - end. - -add_restart([R|Restarts], Now, Period) -> - case inPeriod(R, Now, Period) of - true -> - [R|add_restart(Restarts, Now, Period)]; - _ -> - [] - end; -add_restart([], _, _) -> - []. - -inPeriod(Time, Now, Period) -> - case difference(Time, Now) of - T when T > Period -> - false; - _ -> - true - end. - -%% -%% Time = {MegaSecs, Secs, MicroSecs} (NOTE: MicroSecs is ignored) -%% Calculate the time elapsed in seconds between two timestamps. -%% If MegaSecs is equal just subtract Secs. -%% Else calculate the Mega difference and add the Secs difference, -%% note that Secs difference can be negative, e.g. -%% {827, 999999, 676} diff {828, 1, 653753} == > 2 secs. -%% -difference({TimeM, TimeS, _}, {CurM, CurS, _}) when CurM > TimeM -> - ((CurM - TimeM) * 1000000) + (CurS - TimeS); -difference({_, TimeS, _}, {_, CurS, _}) -> - CurS - TimeS. - -%%% ------------------------------------------------------ -%%% Error and progress reporting. -%%% ------------------------------------------------------ - -report_error(Error, Reason, Child, SupName) -> - ErrorMsg = [{supervisor, SupName}, - {errorContext, Error}, - {reason, Reason}, - {offender, extract_child(Child)}], - error_logger:error_report(supervisor_report, ErrorMsg). - - -extract_child(Child) -> - [{pid, Child#child.pid}, - {name, Child#child.name}, - {mfa, Child#child.mfa}, - {restart_type, Child#child.restart_type}, - {shutdown, Child#child.shutdown}, - {child_type, Child#child.child_type}]. - -report_progress(Child, SupName) -> - Progress = [{supervisor, SupName}, - {started, extract_child(Child)}], - error_logger:info_report(progress, Progress). diff --git a/src/tcp_acceptor.erl b/src/tcp_acceptor.erl deleted file mode 100644 index 0d50683d..00000000 --- a/src/tcp_acceptor.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor). - --behaviour(gen_server). - --export([start_link/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {callback, sock, ref}). - -%%-------------------------------------------------------------------- - -start_link(Callback, LSock) -> - gen_server:start_link(?MODULE, {Callback, LSock}, []). - -%%-------------------------------------------------------------------- - -init({Callback, LSock}) -> - gen_server:cast(self(), accept), - {ok, #state{callback=Callback, sock=LSock}}. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(accept, State) -> - ok = file_handle_cache:obtain(), - accept(State); - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info({inet_async, LSock, Ref, {ok, Sock}}, - State = #state{callback={M,F,A}, sock=LSock, ref=Ref}) -> - - %% patch up the socket so it looks like one we got from - %% gen_tcp:accept/1 - {ok, Mod} = inet_db:lookup_socket(LSock), - inet_db:register_socket(Sock, Mod), - - try - %% report - {Address, Port} = inet_op(fun () -> inet:sockname(LSock) end), - {PeerAddress, PeerPort} = inet_op(fun () -> inet:peername(Sock) end), - error_logger:info_msg("accepted TCP connection on ~s:~p from ~s:~p~n", - [rabbit_misc:ntoab(Address), Port, - rabbit_misc:ntoab(PeerAddress), PeerPort]), - %% In the event that somebody floods us with connections we can spew - %% the above message at error_logger faster than it can keep up. - %% So error_logger's mailbox grows unbounded until we eat all the - %% memory available and crash. So here's a meaningless synchronous call - %% to the underlying gen_event mechanism - when it returns the mailbox - %% is drained. - gen_event:which_handlers(error_logger), - %% handle - file_handle_cache:transfer(apply(M, F, A ++ [Sock])), - ok = file_handle_cache:obtain() - catch {inet_error, Reason} -> - gen_tcp:close(Sock), - error_logger:error_msg("unable to accept TCP connection: ~p~n", - [Reason]) - end, - - %% accept more - accept(State); - -handle_info({inet_async, LSock, Ref, {error, closed}}, - State=#state{sock=LSock, ref=Ref}) -> - %% It would be wrong to attempt to restart the acceptor when we - %% know this will fail. - {stop, normal, State}; - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%-------------------------------------------------------------------- - -inet_op(F) -> rabbit_misc:throw_on_error(inet_error, F). - -accept(State = #state{sock=LSock}) -> - case prim_inet:async_accept(LSock, -1) of - {ok, Ref} -> {noreply, State#state{ref=Ref}}; - Error -> {stop, {cannot_accept, Error}, State} - end. diff --git a/src/tcp_acceptor_sup.erl b/src/tcp_acceptor_sup.erl deleted file mode 100644 index bf0eacd1..00000000 --- a/src/tcp_acceptor_sup.erl +++ /dev/null @@ -1,31 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_acceptor_sup). - --behaviour(supervisor). - --export([start_link/2]). - --export([init/1]). - -start_link(Name, Callback) -> - supervisor:start_link({local,Name}, ?MODULE, Callback). - -init(Callback) -> - {ok, {{simple_one_for_one, 10, 10}, - [{tcp_acceptor, {tcp_acceptor, start_link, [Callback]}, - transient, brutal_kill, worker, [tcp_acceptor]}]}}. diff --git a/src/tcp_listener.erl b/src/tcp_listener.erl deleted file mode 100644 index cd646969..00000000 --- a/src/tcp_listener.erl +++ /dev/null @@ -1,84 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener). - --behaviour(gen_server). - --export([start_link/8]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --record(state, {sock, on_startup, on_shutdown, label}). - -%%-------------------------------------------------------------------- - -start_link(IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label) -> - gen_server:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - OnStartup, OnShutdown, Label}, []). - -%%-------------------------------------------------------------------- - -init({IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, AcceptorSup, - {M,F,A} = OnStartup, OnShutdown, Label}) -> - process_flag(trap_exit, true), - case gen_tcp:listen(Port, SocketOpts ++ [{ip, IPAddress}, - {active, false}]) of - {ok, LSock} -> - lists:foreach(fun (_) -> - {ok, _APid} = supervisor:start_child( - AcceptorSup, [LSock]) - end, - lists:duplicate(ConcurrentAcceptorCount, dummy)), - {ok, {LIPAddress, LPort}} = inet:sockname(LSock), - error_logger:info_msg( - "started ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(LIPAddress), LPort]), - apply(M, F, A ++ [IPAddress, Port]), - {ok, #state{sock = LSock, - on_startup = OnStartup, on_shutdown = OnShutdown, - label = Label}}; - {error, Reason} -> - error_logger:error_msg( - "failed to start ~s on ~s:~p - ~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port, Reason]), - {stop, {cannot_listen, IPAddress, Port, Reason}} - end. - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(_Msg, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, #state{sock=LSock, on_shutdown = {M,F,A}, label=Label}) -> - {ok, {IPAddress, Port}} = inet:sockname(LSock), - gen_tcp:close(LSock), - error_logger:info_msg("stopped ~s on ~s:~p~n", - [Label, rabbit_misc:ntoab(IPAddress), Port]), - apply(M, F, A ++ [IPAddress, Port]). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. diff --git a/src/tcp_listener_sup.erl b/src/tcp_listener_sup.erl deleted file mode 100644 index 58c2f30c..00000000 --- a/src/tcp_listener_sup.erl +++ /dev/null @@ -1,51 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(tcp_listener_sup). - --behaviour(supervisor). - --export([start_link/7, start_link/8]). - --export([init/1]). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, Label) -> - start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, 1, Label). - -start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label) -> - supervisor:start_link( - ?MODULE, {IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}). - -init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown, - AcceptCallback, ConcurrentAcceptorCount, Label}) -> - %% This is gross. The tcp_listener needs to know about the - %% tcp_acceptor_sup, and the only way I can think of accomplishing - %% that without jumping through hoops is to register the - %% tcp_acceptor_sup. - Name = rabbit_misc:tcp_name(tcp_acceptor_sup, IPAddress, Port), - {ok, {{one_for_all, 10, 10}, - [{tcp_acceptor_sup, {tcp_acceptor_sup, start_link, - [Name, AcceptCallback]}, - transient, infinity, supervisor, [tcp_acceptor_sup]}, - {tcp_listener, {tcp_listener, start_link, - [IPAddress, Port, SocketOpts, - ConcurrentAcceptorCount, Name, - OnStartup, OnShutdown, Label]}, - transient, 16#ffffffff, worker, [tcp_listener]}]}}. diff --git a/src/test_sup.erl b/src/test_sup.erl deleted file mode 100644 index 84c4121c..00000000 --- a/src/test_sup.erl +++ /dev/null @@ -1,81 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(test_sup). - --behaviour(supervisor2). - --export([test_supervisor_delayed_restart/0, - init/1, start_child/0]). - -test_supervisor_delayed_restart() -> - passed = with_sup(simple_one_for_one_terminate, - fun (SupPid) -> - {ok, _ChildPid} = - supervisor2:start_child(SupPid, []), - test_supervisor_delayed_restart(SupPid) - end), - passed = with_sup(one_for_one, fun test_supervisor_delayed_restart/1). - -test_supervisor_delayed_restart(SupPid) -> - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(100), - ok = ping_child(SupPid), - ok = exit_child(SupPid), - timer:sleep(100), - timeout = ping_child(SupPid), - timer:sleep(1010), - ok = ping_child(SupPid), - passed. - -with_sup(RestartStrategy, Fun) -> - {ok, SupPid} = supervisor2:start_link(?MODULE, [RestartStrategy]), - Res = Fun(SupPid), - unlink(SupPid), - exit(SupPid, shutdown), - Res. - -init([RestartStrategy]) -> - {ok, {{RestartStrategy, 1, 1}, - [{test, {test_sup, start_child, []}, {permanent, 1}, - 16#ffffffff, worker, [test_sup]}]}}. - -start_child() -> - {ok, proc_lib:spawn_link(fun run_child/0)}. - -ping_child(SupPid) -> - Ref = make_ref(), - with_child_pid(SupPid, fun(ChildPid) -> ChildPid ! {ping, Ref, self()} end), - receive {pong, Ref} -> ok - after 1000 -> timeout - end. - -exit_child(SupPid) -> - with_child_pid(SupPid, fun(ChildPid) -> exit(ChildPid, abnormal) end), - ok. - -with_child_pid(SupPid, Fun) -> - case supervisor2:which_children(SupPid) of - [{_Id, undefined, worker, [test_sup]}] -> ok; - [{_Id, ChildPid, worker, [test_sup]}] -> Fun(ChildPid); - [] -> ok - end. - -run_child() -> - receive {ping, Ref, Pid} -> Pid ! {pong, Ref}, - run_child() - end. diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl deleted file mode 100644 index fb2fa267..00000000 --- a/src/vm_memory_monitor.erl +++ /dev/null @@ -1,366 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - -%% In practice Erlang shouldn't be allowed to grow to more than a half -%% of available memory. The pessimistic scenario is when the Erlang VM -%% has a single process that's consuming all memory. In such a case, -%% during garbage collection, Erlang tries to allocate a huge chunk of -%% continuous memory, which can result in a crash or heavy swapping. -%% -%% This module tries to warn Rabbit before such situations occur, so -%% that it has a higher chance to avoid running out of memory. - --module(vm_memory_monitor). - --behaviour(gen_server). - --export([start_link/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --export([update/0, get_total_memory/0, get_vm_limit/0, - get_check_interval/0, set_check_interval/1, - get_vm_memory_high_watermark/0, set_vm_memory_high_watermark/1, - get_memory_limit/0]). - - --define(SERVER, ?MODULE). --define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). - -%% For an unknown OS, we assume that we have 1GB of memory. It'll be -%% wrong. Scale by vm_memory_high_watermark in configuration to get a -%% sensible value. --define(MEMORY_SIZE_FOR_UNKNOWN_OS, 1073741824). - --record(state, {total_memory, - memory_limit, - timeout, - timer, - alarmed - }). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (float()) -> {'ok', pid()} | {'error', any()}). --spec(update/0 :: () -> 'ok'). --spec(get_total_memory/0 :: () -> (non_neg_integer() | 'unknown')). --spec(get_vm_limit/0 :: () -> non_neg_integer()). --spec(get_memory_limit/0 :: () -> non_neg_integer()). --spec(get_check_interval/0 :: () -> non_neg_integer()). --spec(set_check_interval/1 :: (non_neg_integer()) -> 'ok'). --spec(get_vm_memory_high_watermark/0 :: () -> float()). --spec(set_vm_memory_high_watermark/1 :: (float()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- -%% Public API -%%---------------------------------------------------------------------------- - -update() -> - gen_server:cast(?SERVER, update). - -get_total_memory() -> - get_total_memory(os:type()). - -get_vm_limit() -> - get_vm_limit(os:type()). - -get_check_interval() -> - gen_server:call(?MODULE, get_check_interval, infinity). - -set_check_interval(Fraction) -> - gen_server:call(?MODULE, {set_check_interval, Fraction}, infinity). - -get_vm_memory_high_watermark() -> - gen_server:call(?MODULE, get_vm_memory_high_watermark, infinity). - -set_vm_memory_high_watermark(Fraction) -> - gen_server:call(?MODULE, {set_vm_memory_high_watermark, Fraction}, - infinity). - -get_memory_limit() -> - gen_server:call(?MODULE, get_memory_limit, infinity). - -%%---------------------------------------------------------------------------- -%% gen_server callbacks -%%---------------------------------------------------------------------------- - -start_link(Args) -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [Args], []). - -init([MemFraction]) -> - TotalMemory = - case get_total_memory() of - unknown -> - error_logger:warning_msg( - "Unknown total memory size for your OS ~p. " - "Assuming memory size is ~pMB.~n", - [os:type(), trunc(?MEMORY_SIZE_FOR_UNKNOWN_OS/1048576)]), - ?MEMORY_SIZE_FOR_UNKNOWN_OS; - M -> M - end, - MemLimit = get_mem_limit(MemFraction, TotalMemory), - error_logger:info_msg("Memory limit set to ~pMB.~n", - [trunc(MemLimit/1048576)]), - TRef = start_timer(?DEFAULT_MEMORY_CHECK_INTERVAL), - State = #state { total_memory = TotalMemory, - memory_limit = MemLimit, - timeout = ?DEFAULT_MEMORY_CHECK_INTERVAL, - timer = TRef, - alarmed = false}, - {ok, internal_update(State)}. - -handle_call(get_vm_memory_high_watermark, _From, State) -> - {reply, State#state.memory_limit / State#state.total_memory, State}; - -handle_call({set_vm_memory_high_watermark, MemFraction}, _From, State) -> - MemLimit = get_mem_limit(MemFraction, State#state.total_memory), - error_logger:info_msg("Memory alarm changed to ~p, ~p bytes.~n", - [MemFraction, MemLimit]), - {reply, ok, State#state{memory_limit = MemLimit}}; - -handle_call(get_check_interval, _From, State) -> - {reply, State#state.timeout, State}; - -handle_call({set_check_interval, Timeout}, _From, State) -> - {ok, cancel} = timer:cancel(State#state.timer), - {reply, ok, State#state{timeout = Timeout, timer = start_timer(Timeout)}}; - -handle_call(get_memory_limit, _From, State) -> - {reply, State#state.memory_limit, State}; - -handle_call(_Request, _From, State) -> - {noreply, State}. - -handle_cast(update, State) -> - {noreply, internal_update(State)}; - -handle_cast(_Request, State) -> - {noreply, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -%%---------------------------------------------------------------------------- -%% Server Internals -%%---------------------------------------------------------------------------- - -internal_update(State = #state { memory_limit = MemLimit, - alarmed = Alarmed}) -> - MemUsed = erlang:memory(total), - NewAlarmed = MemUsed > MemLimit, - case {Alarmed, NewAlarmed} of - {false, true} -> - emit_update_info(set, MemUsed, MemLimit), - alarm_handler:set_alarm({{vm_memory_high_watermark, node()}, []}); - {true, false} -> - emit_update_info(clear, MemUsed, MemLimit), - alarm_handler:clear_alarm({vm_memory_high_watermark, node()}); - _ -> - ok - end, - State #state {alarmed = NewAlarmed}. - -emit_update_info(State, MemUsed, MemLimit) -> - error_logger:info_msg( - "vm_memory_high_watermark ~p. Memory used:~p allowed:~p~n", - [State, MemUsed, MemLimit]). - -start_timer(Timeout) -> - {ok, TRef} = timer:apply_interval(Timeout, ?MODULE, update, []), - TRef. - -%% According to http://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx -%% Windows has 2GB and 8TB of address space for 32 and 64 bit accordingly. -get_vm_limit({win32,_OSname}) -> - case erlang:system_info(wordsize) of - 4 -> 2*1024*1024*1024; %% 2 GB for 32 bits 2^31 - 8 -> 8*1024*1024*1024*1024 %% 8 TB for 64 bits 2^42 - end; - -%% On a 32-bit machine, if you're using more than 2 gigs of RAM you're -%% in big trouble anyway. -get_vm_limit(_OsType) -> - case erlang:system_info(wordsize) of - 4 -> 4*1024*1024*1024; %% 4 GB for 32 bits 2^32 - 8 -> 256*1024*1024*1024*1024 %% 256 TB for 64 bits 2^48 - %%http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_details - end. - -get_mem_limit(MemFraction, TotalMemory) -> - AvMem = lists:min([TotalMemory, get_vm_limit()]), - trunc(AvMem * MemFraction). - -%%---------------------------------------------------------------------------- -%% Internal Helpers -%%---------------------------------------------------------------------------- -cmd(Command) -> - Exec = hd(string:tokens(Command, " ")), - case os:find_executable(Exec) of - false -> throw({command_not_found, Exec}); - _ -> os:cmd(Command) - end. - -%% get_total_memory(OS) -> Total -%% Windows and Freebsd code based on: memsup:get_memory_usage/1 -%% Original code was part of OTP and released under "Erlang Public License". - -get_total_memory({unix,darwin}) -> - File = cmd("/usr/bin/vm_stat"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_mach/1, Lines)), - [PageSize, Inactive, Active, Free, Wired] = - [dict:fetch(Key, Dict) || - Key <- [page_size, 'Pages inactive', 'Pages active', 'Pages free', - 'Pages wired down']], - PageSize * (Inactive + Active + Free + Wired); - -get_total_memory({unix,freebsd}) -> - PageSize = sysctl("vm.stats.vm.v_page_size"), - PageCount = sysctl("vm.stats.vm.v_page_count"), - PageCount * PageSize; - -get_total_memory({unix,openbsd}) -> - sysctl("hw.usermem"); - -get_total_memory({win32,_OSname}) -> - %% Due to the Erlang print format bug, on Windows boxes the memory - %% size is broken. For example Windows 7 64 bit with 4Gigs of RAM - %% we get negative memory size: - %% > os_mon_sysinfo:get_mem_info(). - %% ["76 -1658880 1016913920 -1 -1021628416 2147352576 2134794240\n"] - %% Due to this bug, we don't actually know anything. Even if the - %% number is postive we can't be sure if it's correct. This only - %% affects us on os_mon versions prior to 2.2.1. - case application:get_key(os_mon, vsn) of - undefined -> - unknown; - {ok, Version} -> - case rabbit_misc:version_compare(Version, "2.2.1", lt) of - true -> %% os_mon is < 2.2.1, so we know nothing - unknown; - false -> - [Result|_] = os_mon_sysinfo:get_mem_info(), - {ok, [_MemLoad, TotPhys, _AvailPhys, - _TotPage, _AvailPage, _TotV, _AvailV], _RestStr} = - io_lib:fread("~d~d~d~d~d~d~d", Result), - TotPhys - end - end; - -get_total_memory({unix, linux}) -> - File = read_proc_file("/proc/meminfo"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_linux/1, Lines)), - dict:fetch('MemTotal', Dict); - -get_total_memory({unix, sunos}) -> - File = cmd("/usr/sbin/prtconf"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_sunos/1, Lines)), - dict:fetch('Memory size', Dict); - -get_total_memory({unix, aix}) -> - File = cmd("/usr/bin/vmstat -v"), - Lines = string:tokens(File, "\n"), - Dict = dict:from_list(lists:map(fun parse_line_aix/1, Lines)), - dict:fetch('memory pages', Dict) * 4096; - -get_total_memory(_OsType) -> - unknown. - -%% A line looks like "Foo bar: 123456." -parse_line_mach(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - case Name of - "Mach Virtual Memory Statistics" -> - ["(page", "size", "of", PageSize, "bytes)"] = - string:tokens(RHS, " "), - {page_size, list_to_integer(PageSize)}; - _ -> - [Value | _Rest1] = string:tokens(RHS, " ."), - {list_to_atom(Name), list_to_integer(Value)} - end. - -%% A line looks like "FooBar: 123456 kB" -parse_line_linux(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. - -%% A line looks like "Memory size: 1024 Megabytes" -parse_line_sunos(Line) -> - case string:tokens(Line, ":") of - [Name, RHS | _Rest] -> - [Value1 | UnitsRest] = string:tokens(RHS, " "), - Value2 = case UnitsRest of - ["Gigabytes"] -> - list_to_integer(Value1) * 1024 * 1024 * 1024; - ["Megabytes"] -> - list_to_integer(Value1) * 1024 * 1024; - ["Kilobytes"] -> - list_to_integer(Value1) * 1024; - _ -> - Value1 ++ UnitsRest %% no known units - end, - {list_to_atom(Name), Value2}; - [Name] -> {list_to_atom(Name), none} - end. - -%% Lines look like " 12345 memory pages" -%% or " 80.1 maxpin percentage" -parse_line_aix(Line) -> - [Value | NameWords] = string:tokens(Line, " "), - Name = string:join(NameWords, " "), - {list_to_atom(Name), - case lists:member($., Value) of - true -> trunc(list_to_float(Value)); - false -> list_to_integer(Value) - end}. - -sysctl(Def) -> - list_to_integer(cmd("/sbin/sysctl -n " ++ Def) -- "\n"). - -%% file:read_file does not work on files in /proc as it seems to get -%% the size of the file first and then read that many bytes. But files -%% in /proc always have length 0, we just have to read until we get -%% eof. -read_proc_file(File) -> - {ok, IoDevice} = file:open(File, [read, raw]), - Res = read_proc_file(IoDevice, []), - file:close(IoDevice), - lists:flatten(lists:reverse(Res)). - --define(BUFFER_SIZE, 1024). -read_proc_file(IoDevice, Acc) -> - case file:read(IoDevice, ?BUFFER_SIZE) of - {ok, Res} -> read_proc_file(IoDevice, [Res | Acc]); - eof -> Acc - end. diff --git a/src/worker_pool.erl b/src/worker_pool.erl deleted file mode 100644 index e4f260cc..00000000 --- a/src/worker_pool.erl +++ /dev/null @@ -1,140 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool). - -%% Generic worker pool manager. -%% -%% Supports nested submission of jobs (nested jobs always run -%% immediately in current worker process). -%% -%% Possible future enhancements: -%% -%% 1. Allow priorities (basically, change the pending queue to a -%% priority_queue). - --behaviour(gen_server2). - --export([start_link/0, submit/1, submit_async/1, idle/1]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(submit/1 :: (fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/1 :: - (fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - --record(state, { available, pending }). - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server2:start_link({local, ?SERVER}, ?MODULE, [], - [{timeout, infinity}]). - -submit(Fun) -> - case get(worker_pool_worker) of - true -> worker_pool_worker:run(Fun); - _ -> Pid = gen_server2:call(?SERVER, next_free, infinity), - worker_pool_worker:submit(Pid, Fun) - end. - -submit_async(Fun) -> - gen_server2:cast(?SERVER, {run_async, Fun}). - -idle(WId) -> - gen_server2:cast(?SERVER, {idle, WId}). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state { pending = queue:new(), available = queue:new() }, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -handle_call(next_free, From, State = #state { available = Avail, - pending = Pending }) -> - case queue:out(Avail) of - {empty, _Avail} -> - {noreply, - State #state { pending = queue:in({next_free, From}, Pending) }, - hibernate}; - {{value, WId}, Avail1} -> - {reply, get_worker_pid(WId), State #state { available = Avail1 }, - hibernate} - end; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({idle, WId}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, case queue:out(Pending) of - {empty, _Pending} -> - State #state { available = queue:in(WId, Avail) }; - {{value, {next_free, From}}, Pending1} -> - gen_server2:reply(From, get_worker_pid(WId)), - State #state { pending = Pending1 }; - {{value, {run_async, Fun}}, Pending1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { pending = Pending1 } - end, hibernate}; - -handle_cast({run_async, Fun}, State = #state { available = Avail, - pending = Pending }) -> - {noreply, - case queue:out(Avail) of - {empty, _Avail} -> - State #state { pending = queue:in({run_async, Fun}, Pending)}; - {{value, WId}, Avail1} -> - worker_pool_worker:submit_async(get_worker_pid(WId), Fun), - State #state { available = Avail1 } - end, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. - -%%---------------------------------------------------------------------------- - -get_worker_pid(WId) -> - [{WId, Pid, _Type, _Modules} | _] = - lists:dropwhile(fun ({Id, _Pid, _Type, _Modules}) - when Id =:= WId -> false; - (_) -> true - end, - supervisor:which_children(worker_pool_sup)), - Pid. diff --git a/src/worker_pool_sup.erl b/src/worker_pool_sup.erl deleted file mode 100644 index 28c1adc6..00000000 --- a/src/worker_pool_sup.erl +++ /dev/null @@ -1,53 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_sup). - --behaviour(supervisor). - --export([start_link/0, start_link/1]). - --export([init/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/0 :: () -> {'ok', pid()} | {'error', any()}). --spec(start_link/1 :: (non_neg_integer()) -> {'ok', pid()} | {'error', any()}). - --endif. - -%%---------------------------------------------------------------------------- - --define(SERVER, ?MODULE). - -%%---------------------------------------------------------------------------- - -start_link() -> - start_link(erlang:system_info(schedulers)). - -start_link(WCount) -> - supervisor:start_link({local, ?SERVER}, ?MODULE, [WCount]). - -%%---------------------------------------------------------------------------- - -init([WCount]) -> - {ok, {{one_for_one, 10, 10}, - [{worker_pool, {worker_pool, start_link, []}, transient, - 16#ffffffff, worker, [worker_pool]} | - [{N, {worker_pool_worker, start_link, [N]}, transient, 16#ffffffff, - worker, [worker_pool_worker]} || N <- lists:seq(1, WCount)]]}}. diff --git a/src/worker_pool_worker.erl b/src/worker_pool_worker.erl deleted file mode 100644 index 78ab4df3..00000000 --- a/src/worker_pool_worker.erl +++ /dev/null @@ -1,106 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -%% - --module(worker_pool_worker). - --behaviour(gen_server2). - --export([start_link/1, submit/2, submit_async/2, run/1]). - --export([set_maximum_since_use/2]). - --export([init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3, prioritise_cast/2]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start_link/1 :: (any()) -> {'ok', pid()} | {'error', any()}). --spec(submit/2 :: (pid(), fun (() -> A) | {atom(), atom(), [any()]}) -> A). --spec(submit_async/2 :: - (pid(), fun (() -> any()) | {atom(), atom(), [any()]}) -> 'ok'). --spec(run/1 :: (fun (() -> A)) -> A; - ({atom(), atom(), [any()]}) -> any()). --spec(set_maximum_since_use/2 :: (pid(), non_neg_integer()) -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - --define(HIBERNATE_AFTER_MIN, 1000). --define(DESIRED_HIBERNATE, 10000). - -%%---------------------------------------------------------------------------- - -start_link(WId) -> - gen_server2:start_link(?MODULE, [WId], [{timeout, infinity}]). - -submit(Pid, Fun) -> - gen_server2:call(Pid, {submit, Fun}, infinity). - -submit_async(Pid, Fun) -> - gen_server2:cast(Pid, {submit_async, Fun}). - -set_maximum_since_use(Pid, Age) -> - gen_server2:cast(Pid, {set_maximum_since_use, Age}). - -run({M, F, A}) -> - apply(M, F, A); -run(Fun) -> - Fun(). - -%%---------------------------------------------------------------------------- - -init([WId]) -> - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, - [self()]), - ok = worker_pool:idle(WId), - put(worker_pool_worker, true), - {ok, WId, hibernate, - {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}. - -prioritise_cast({set_maximum_since_use, _Age}, _State) -> 8; -prioritise_cast(_Msg, _State) -> 0. - -handle_call({submit, Fun}, From, WId) -> - gen_server2:reply(From, run(Fun)), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_call(Msg, _From, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast({submit_async, Fun}, WId) -> - run(Fun), - ok = worker_pool:idle(WId), - {noreply, WId, hibernate}; - -handle_cast({set_maximum_since_use, Age}, WId) -> - ok = file_handle_cache:set_maximum_since_use(Age), - {noreply, WId, hibernate}; - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(Msg, State) -> - {stop, {unexpected_info, Msg}, State}. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - -terminate(_Reason, State) -> - State. -- cgit v1.2.1 From cd9950d57c9d14a55d860fafee1afccce1890036 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 8 Aug 2011 16:33:29 +0100 Subject: Upgrade all entries in a segment --- src/rabbit_queue_index.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index aaf3df78..cd799315 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -1015,7 +1015,7 @@ add_queue_ttl_segment(<>, MsgId, expiry_to_binary(undefined)], Rest}; add_queue_ttl_segment(<>) -> + RelSeq:?REL_SEQ_BITS, Rest/binary>>) -> {<>, Rest}; add_queue_ttl_segment(_) -> -- cgit v1.2.1 From 15f4ecb0b6d63dad5626f19b6f7db107a0656f75 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 8 Aug 2011 16:46:31 +0100 Subject: Correct points at which we delete from cache --- src/rabbit_msg_store.erl | 32 +++++++++++++++++++++++--------- 1 file changed, 23 insertions(+), 9 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index fc1f4642..73b472ee 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -748,7 +748,8 @@ handle_cast({write, CRef, MsgId}, %% the msg yet: now pending write count is 2, %% %% msg store processes q1's write (pending write count: 1 - %% and msg store now knows about msg) + %% and msg store now knows about msg, and the cur file + %% is rolled over) %% %% msg store processes q2's write (pending write count %% falls to 0 and, because we already know about the @@ -788,8 +789,11 @@ handle_cast({write, CRef, MsgId}, CTM end, CRef, State1) end); - [{MsgId, _Msg, _CacheRefCount}] -> - %% The remove overtook the write, so we do nothing here. + [{MsgId, Msg, _CacheRefCount}] -> + %% The remove overtook the write, and because of that, we + %% know a read can't be following, so it's ok to remove + %% from the cache. + true = ets:delete_object(CurFileCacheEts, {MsgId, Msg, 0}), noreply(State) end; @@ -1074,13 +1078,10 @@ remove_message(MsgId, CRef, case should_mask_action(CRef, MsgId, State) of {true, Location} -> ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), - case Location of - #msg_location { file = File } when File =/= CurFile -> - true = ets:match_delete(CurFileCacheEts, {MsgId, '_', 0}); - _ -> ok - end, + true = maybe_delete_from_cache(CurFileCacheEts, MsgId, Location, + CurFile), State; - {false_if_increment, #msg_location { ref_count = 0 }} -> + {false_if_increment, #msg_location { ref_count = 0 } = Location} -> %% CRef is dying. If this remove had a corresponding write %% that arrived before the remove and the ref_count is 0 %% then it can only be because the file is currently being @@ -1092,6 +1093,8 @@ remove_message(MsgId, CRef, %% decrement the CacheRefCount as a write either before or %% after will not touch the CacheRefCount. ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), + true = maybe_delete_from_cache(CurFileCacheEts, MsgId, Location, + CurFile), State; {_Mask, #msg_location { ref_count = RefCount, file = File, total_size = TotalSize }} when RefCount > 0 -> @@ -1128,10 +1131,21 @@ remove_message(MsgId, CRef, %% removes have left it with a refcount of 0. Rather than %% try to cope with negative refcounts, instead, again we %% just cancel out a pending write. + %% + %% Because the remove has arrived first, we know that a + %% read can't be following so it's ok to remove from the + %% cache. ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), + true = ets:match_delete(CurFileCacheEts, {MsgId, '_', 0}), State end. +maybe_delete_from_cache(_CurFileCacheEts, _MsgId, + #msg_location { file = CurFile }, CurFile) -> + true; +maybe_delete_from_cache(CurFileCacheEts, MsgId, _, _CurFile) -> + true = ets:match_delete(CurFileCacheEts, {MsgId, '_', 0}). + add_to_pending_gc_completion( Op, File, State = #msstate { pending_gc_completion = Pending }) -> State #msstate { pending_gc_completion = -- cgit v1.2.1 From fe9517accf85ac1777b5573ad9b6a729d5b2207c Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 11:59:31 +0100 Subject: If the result of an incr by N is N then we must have started at 0. --- src/rabbit_msg_store.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 73b472ee..7a861b6f 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1366,7 +1366,7 @@ update_msg_cache(CacheEts, MsgId, Msg, N) when N =:= -1 orelse N =:= 1 -> true -> ok; false -> safe_ets_update_counter( CacheEts, MsgId, {3, N}, - fun (1) when N > 0 -> + fun (M) when M =:= N -> true = ets:update_element(CacheEts, MsgId, {2, Msg}), ok; (_) -> -- cgit v1.2.1 From 216c3b3fcbaca72ed256fa5ba74c4b77b4056c8e Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 12:09:15 +0100 Subject: Minor abstraction --- src/rabbit_msg_store.erl | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 7a861b6f..a66e15fb 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1077,9 +1077,8 @@ remove_message(MsgId, CRef, current_file = CurFile }) -> case should_mask_action(CRef, MsgId, State) of {true, Location} -> - ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), - true = maybe_delete_from_cache(CurFileCacheEts, MsgId, Location, - CurFile), + true = eliminate_pending_write(CurFileCacheEts, CurFile, MsgId, + Location), State; {false_if_increment, #msg_location { ref_count = 0 } = Location} -> %% CRef is dying. If this remove had a corresponding write @@ -1092,9 +1091,8 @@ remove_message(MsgId, CRef, %% CacheRefCount. In either case, it's safe here to %% decrement the CacheRefCount as a write either before or %% after will not touch the CacheRefCount. - ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), - true = maybe_delete_from_cache(CurFileCacheEts, MsgId, Location, - CurFile), + true = eliminate_pending_write(CurFileCacheEts, CurFile, MsgId, + Location), State; {_Mask, #msg_location { ref_count = RefCount, file = File, total_size = TotalSize }} when RefCount > 0 -> @@ -1120,7 +1118,7 @@ remove_message(MsgId, CRef, _ -> ok = Dec(), State end; - {_Mask, _} -> + {_Mask, Location} -> %% Either: %% %% a) The remove has overtaken the write and we have not @@ -1135,11 +1133,15 @@ remove_message(MsgId, CRef, %% Because the remove has arrived first, we know that a %% read can't be following so it's ok to remove from the %% cache. - ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), - true = ets:match_delete(CurFileCacheEts, {MsgId, '_', 0}), + true = eliminate_pending_write(CurFileCacheEts, CurFile, MsgId, + Location), State end. +eliminate_pending_write(CurFileCacheEts, CurFile, MsgId, Location) -> + ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), + true = maybe_delete_from_cache(CurFileCacheEts, MsgId, Location, CurFile). + maybe_delete_from_cache(_CurFileCacheEts, _MsgId, #msg_location { file = CurFile }, CurFile) -> true; -- cgit v1.2.1 From 77f14660e353921c9152da401ed5b3ed7557e860 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 12:10:07 +0100 Subject: Remove unnecessary guard. --- src/rabbit_msg_store.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index a66e15fb..baf8698c 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1363,7 +1363,7 @@ list_sorted_file_names(Dir, Ext) -> %% message cache helper functions %%---------------------------------------------------------------------------- -update_msg_cache(CacheEts, MsgId, Msg, N) when N =:= -1 orelse N =:= 1 -> +update_msg_cache(CacheEts, MsgId, Msg, N) -> case ets:insert_new(CacheEts, {MsgId, Msg, N}) of true -> ok; false -> safe_ets_update_counter( -- cgit v1.2.1 From ec48e8391ed17fdac9021c565a1125950c2feaa0 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 12:11:26 +0100 Subject: Correct comment --- src/rabbit_msg_store.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index baf8698c..4c71a20a 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -737,7 +737,7 @@ handle_cast({write, CRef, MsgId}, %% A remove overtook a write, but other writes were going %% on which meant that one of the ets:delete_object calls %% above removed the entry from the CurFileCacheEts. Hence - %% the badarg. Something like: + %% the empty list. Something like: %% %% q1 sent write (pending write count: 1), %% q2 sent write (pending write count: 2), -- cgit v1.2.1 From 8835187a5ef4e3a36c5a4eff6fa600d1058397ca Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 12:15:04 +0100 Subject: Correct comment --- src/rabbit_msg_store.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 4c71a20a..40608e99 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -736,7 +736,7 @@ handle_cast({write, CRef, MsgId}, [] -> %% A remove overtook a write, but other writes were going %% on which meant that one of the ets:delete_object calls - %% above removed the entry from the CurFileCacheEts. Hence + %% below removed the entry from the CurFileCacheEts. Hence %% the empty list. Something like: %% %% q1 sent write (pending write count: 1), -- cgit v1.2.1 From 74d5e2c36242a6fb5475761be72a722124d640a1 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 12:24:10 +0100 Subject: Eliminate one of two now-identical branches. If the write_action returns 'ignore' then it's because the client is dying and the write is post the death marker. In such cases we now only do the decrement in the cache in remove, not on write. --- src/rabbit_msg_store.erl | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 40608e99..586e2fe6 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -770,10 +770,7 @@ handle_cast({write, CRef, MsgId}, {write, State1} -> ets:update_counter(CurFileCacheEts, MsgId, {3, -1}), write_message(CRef, MsgId, Msg, State1); - {ignore, CurFile, - State1 = #msstate { current_file = CurFile }} -> - State1; - {ignore, _File, State1} -> + {ignore, State1} -> State1; {confirm, CurFile, State1 = #msstate { current_file = CurFile }} -> @@ -941,10 +938,8 @@ internal_sync(State = #msstate { current_file_handle = CurHdl, end, State1, CGs), State2 #msstate { on_sync = [] }. -write_action({true, not_found}, _MsgId, State) -> - {ignore, undefined, State}; -write_action({true, #msg_location { file = File }}, _MsgId, State) -> - {ignore, File, State}; +write_action({true, _Location}, _MsgId, State) -> + {ignore, State}; write_action({false, not_found}, _MsgId, State) -> {write, State}; write_action({Mask, #msg_location { ref_count = 0, file = File, @@ -959,7 +954,7 @@ write_action({Mask, #msg_location { ref_count = 0, file = File, %% message, but as it is being GC'd currently we'll have %% to write a new copy, which will then be younger, so %% ignore this write. - {ignore, File, State}; + {ignore, State}; {_Mask, [#file_summary {}]} -> ok = index_update_ref_count(MsgId, 1, State), State1 = adjust_valid_total_size(File, TotalSize, State), -- cgit v1.2.1 From 1320cfe0f1a3e5e3ccba9ef157502468de425622 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 12:26:56 +0100 Subject: In light of the previous commit, it became very obvious this function was misnamed. --- src/rabbit_msg_store.erl | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 586e2fe6..d1fd2eda 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1072,8 +1072,7 @@ remove_message(MsgId, CRef, current_file = CurFile }) -> case should_mask_action(CRef, MsgId, State) of {true, Location} -> - true = eliminate_pending_write(CurFileCacheEts, CurFile, MsgId, - Location), + true = decrement_cache(CurFileCacheEts, CurFile, MsgId, Location), State; {false_if_increment, #msg_location { ref_count = 0 } = Location} -> %% CRef is dying. If this remove had a corresponding write @@ -1086,8 +1085,7 @@ remove_message(MsgId, CRef, %% CacheRefCount. In either case, it's safe here to %% decrement the CacheRefCount as a write either before or %% after will not touch the CacheRefCount. - true = eliminate_pending_write(CurFileCacheEts, CurFile, MsgId, - Location), + true = decrement_cache(CurFileCacheEts, CurFile, MsgId, Location), State; {_Mask, #msg_location { ref_count = RefCount, file = File, total_size = TotalSize }} when RefCount > 0 -> @@ -1128,12 +1126,11 @@ remove_message(MsgId, CRef, %% Because the remove has arrived first, we know that a %% read can't be following so it's ok to remove from the %% cache. - true = eliminate_pending_write(CurFileCacheEts, CurFile, MsgId, - Location), + true = decrement_cache(CurFileCacheEts, CurFile, MsgId, Location), State end. -eliminate_pending_write(CurFileCacheEts, CurFile, MsgId, Location) -> +decrement_cache(CurFileCacheEts, CurFile, MsgId, Location) -> ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), true = maybe_delete_from_cache(CurFileCacheEts, MsgId, Location, CurFile). -- cgit v1.2.1 From ed11ff5899fbb2d1ec61946c91f644b0f251cc4c Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 13:16:35 +0100 Subject: Simplify comment documenting scenario; rewrite guard for legibility; inline function saving lines at the cost of duplicated code --- src/rabbit_msg_store.erl | 43 +++++++++---------------------------------- 1 file changed, 9 insertions(+), 34 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index d1fd2eda..4d934d0b 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -734,35 +734,12 @@ handle_cast({write, CRef, MsgId}, State = #msstate { cur_file_cache_ets = CurFileCacheEts }) -> case ets:lookup(CurFileCacheEts, MsgId) of [] -> - %% A remove overtook a write, but other writes were going - %% on which meant that one of the ets:delete_object calls - %% below removed the entry from the CurFileCacheEts. Hence - %% the empty list. Something like: - %% - %% q1 sent write (pending write count: 1), - %% q2 sent write (pending write count: 2), - %% q3 sent write (pending write count: 3), - %% - %% q1 sends remove, which overtakes all writes and is - %% processed by msg_store, which does not know about - %% the msg yet: now pending write count is 2, - %% - %% msg store processes q1's write (pending write count: 1 - %% and msg store now knows about msg, and the cur file - %% is rolled over) - %% - %% msg store processes q2's write (pending write count - %% falls to 0 and, because we already know about the - %% msg we fall into the lower 'confirm' branch and do - %% the ets:delete_object) - %% - %% msg store processes q3's write. But there is now no - %% entry in cur_file_cache_ets and so we end up - %% here. Note though that at this point, the msg_store - %% knows of the msg, and the msg has a refcount of 2, - %% which is exactly what is required. + %% Simplest cause for arriving here is that a remove + %% overtook a write, and when we processed the remove, we + %% decremented the pending write count, which went to 0, + %% and was then removed from the cache. noreply(State); - [{MsgId, Msg, CacheRefCount}] when 0 < CacheRefCount -> + [{MsgId, Msg, CacheRefCount}] when CacheRefCount > 0 -> true = Msg =/= undefined, %% ASSERTION noreply( case write_action(should_mask_action(CRef, MsgId, State), MsgId, @@ -1130,14 +1107,12 @@ remove_message(MsgId, CRef, State end. -decrement_cache(CurFileCacheEts, CurFile, MsgId, Location) -> +decrement_cache(CurFileCacheEts, CurFile, MsgId, + #msg_location { file = CurFile }) -> ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), - true = maybe_delete_from_cache(CurFileCacheEts, MsgId, Location, CurFile). - -maybe_delete_from_cache(_CurFileCacheEts, _MsgId, - #msg_location { file = CurFile }, CurFile) -> true; -maybe_delete_from_cache(CurFileCacheEts, MsgId, _, _CurFile) -> +decrement_cache(CurFileCacheEts, _CurFile, MsgId, _Location) -> + ok = update_msg_cache(CurFileCacheEts, MsgId, undefined, -1), true = ets:match_delete(CurFileCacheEts, {MsgId, '_', 0}). add_to_pending_gc_completion( -- cgit v1.2.1 From db35c6e58a2b99b9abb3605b44c120809b83a5b8 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 14:08:30 +0100 Subject: Testing and thinking both support the idea that with the logic correct, there should be no reason why we end up processing a remove where there isn't a corresponding write line (i.e. with the real msg) in the cache --- src/rabbit_msg_store.erl | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 4d934d0b..7b12e11d 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -1332,15 +1332,10 @@ list_sorted_file_names(Dir, Ext) -> update_msg_cache(CacheEts, MsgId, Msg, N) -> case ets:insert_new(CacheEts, {MsgId, Msg, N}) of - true -> ok; + true -> true = undefined =/= Msg, %% ASSERTION + ok; false -> safe_ets_update_counter( - CacheEts, MsgId, {3, N}, - fun (M) when M =:= N -> - true = ets:update_element(CacheEts, MsgId, {2, Msg}), - ok; - (_) -> - ok - end, + CacheEts, MsgId, {3, N}, fun (_) -> ok end, fun () -> update_msg_cache(CacheEts, MsgId, Msg, N) end) end. -- cgit v1.2.1 From 2baa5f66ddbea1f2a7720ad26514f5f9d307776e Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 15:53:54 +0100 Subject: Added one or two words of explanation --- src/rabbit_msg_store.erl | 121 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 121 insertions(+) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 7b12e11d..67354056 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -377,6 +377,127 @@ %% %% For notes on Clean Shutdown and startup, see documentation in %% variable_queue. +%% +%% +%% Promoting reads over writes +%% --------------------------- +%% +%% When a client does a write, at that point it inserts the msg into +%% the CurFileCacheEts table. From that point on, the client can +%% expect to do a read promptly: before the write has been processed +%% by the msg_store, the client can read directly from the +%% cache. After the write has been processed by the msg_store, if the +%% msg ends up in the current file, then it will remain in the cache +%% and can be read directly. If the msg is not in the current file, +%% then it can be read directly from that file. All of which means +%% that it is safe for reads to be promoted over writes: the only case +%% in which the client can't do its read is when a file needs to be +%% read from and is currently locked due to GC. In such cases, the +%% file must already exist on disk, with a positive reference count, +%% and so the overtaken write will do nothing other than increment the +%% reference count. As such, it's safe to process the read first. +%% +%% +%% On the elimination of writes +%% ---------------------------- +%% +%% In order to minimise disk activity, it's helpful to promote removes +%% over writes. This allows a msg_store under load to receive the +%% remove first, and eliminate the following write. A remove that is +%% followed by a read may give undefined results: there's a +%% possibility that it would return the msg from the CurFileCacheEts, +%% but given that write and remove are async, it's always been +%% possible for the read in a write-remove-read sequence to access the +%% cache and pull the message before it gets removed from the cache. +%% +%% In order to eliminate the write, when the msg_store processes the +%% remove, if the msg being removed is "unknown" to the msg_store, it +%% simply decrements the Pending Write Count (PWC hereafter) in the +%% CurFileCacheEts. "Unknown" can include "known, but the msg +%% ref_count is 0" and "the client is dying and the corresponding +%% write would be masked out anyway". Then, when the write arrives, +%% either there is no entry in the CurFileCacheEts for the write, or +%% there is an entry but its PWC is 0 and so the write is eliminated. +%% +%% Thus it's important that every increment of a msg's PWC by a +%% client-side write is matched by exactly one decrement of a msg's +%% PWC in the msg_store either as a result of a remove or a write: +%% +%% (The letters in (brackets) are explained below.) +%% +%% If the sequence is write-remove, then: +%% 1. If the msg is unknown and the client is not dying, the write +%% will actually write the msg and decrement the PWC. The msg's +%% ref_count will be 1. The remove will find the msg on disk, and +%% will decrement its ref_count, and will not touch the PWC. (E) +%% 2. If the msg is unknown and the client is dying then the write +%% will be masked out. The PWC will be untouched. The remove will +%% decrement the PWC. (C) +%% 3. If the msg is known and the client is not dying then the msg's +%% ref_count will be incremented, and the PWC will be +%% decremented. The remove will find the msg on disk, and will +%% decrement its ref_count, and will not touch the PWC. (A, E) +%% 4. If the msg is known and the client is dying then the write may +%% be masked out, depending on the whether the msg is younger or +%% older than the start of the client's death. If the write is +%% masked out then the PWC will not be touched, and the subsequent +%% remove will decrement the PWC. If the write is not masked out +%% then the write will increment the ref_count and decrement the +%% PWC, and the remove will decrement the ref_count and will not +%% touch the PWC. (A, C, E) +%% +%% If the sequence is remove-write, then: +%% 1. If the msg is unknown and the client is not dying, the remove +%% will decrement the PWC. The write will find a PWC of 0 and will +%% not write the msg, nor touch the PWC. (B, D) +%% 2. If the msg is unknown and the client is dying then the remove +%% will decrement the PWC. The write will find a PWC of 0 and will +%% not write the msg, nor touch the PWC. (B, C) +%% 3. If the msg is known and the client is not dying, the remove +%% will: a) decrement the ref_count and not touch the PWC iff the +%% ref_count is > 0; or b) iff the ref_count == 0, will decrement +%% the PWC. The write will correspondingly a) increment the +%% ref_count (even if the ref_count is 0) and decrement the PWC; +%% or b) find a PWC of 0 and will not write the msg, nor touch the +%% PWC. (A, B) +%% 4. If the msg is known and the client is dying, the remove will +%% decrement the PWC (unless the ref_count is > 0 and the msg was +%% written pre-client-death, in which case it'll decrement +%% ref_count and not touch PWC), and the write will find a PWC of +%% 0 and will not write the msg, nor touch the PWC (or if the msg +%% was originally written pre-client-death, it'll increment the +%% ref_count and decrement the PWC). (A, B, C, D, E) +%% +%% It's also important that we guarantee the CurFileCacheEts cannot +%% balloon in size. The rule is that we remove from the +%% CurFileCacheEts iff the PWC == 0 and (either the msg has been +%% written to a file which is not the current file, or the msg has +%% been removed). +%% +%% When we roll the current file, we delete from the CurFileCacheEts +%% all entries with a PWC of 0, but given write elimination, we can go +%% for a very long time before rolling the current file. We therefore +%% remove from the CurFileCacheEts when: +%% +%% A. On write, when incrementing the ref_count and the file =/= +%% cur_file. +%% B. On write, when we find the PWC is 0 and thus know that a remove +%% must have overtaken the write. +%% C. On remove, when the client is dying. +%% D. On remove, when the msg is either unknown or has a ref_count of +%% 0: in both cases we know the remove must have overtaken a +%% write. +%% E. On rolling the current file. In the case where we really are +%% doing writes and removes to the current file, and thus we can +%% prove the current file is making progress towards being rolled, +%% we leave entries in the CurFileCacheEts even when their PWC is +%% 0. (Equally, if it's just a single msg that is having its +%% ref_count incremented and decremented then whilst we make no +%% progress towards rolling, we equally are not using up further +%% memory in the CurFileCacheEts). +%% +%% For each of the preceding 8 cases, each one has at least one of A, +%% B, C, D or E present. %%---------------------------------------------------------------------------- %% public API -- cgit v1.2.1 From 0e97c4a24d7eb4a9dbc007e2cf29b912fb510c7c Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 9 Aug 2011 16:37:37 +0100 Subject: PWC can not be negative. Enforce that. --- src/rabbit_msg_store.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 67354056..62b408b3 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -884,7 +884,7 @@ handle_cast({write, CRef, MsgId}, CTM end, CRef, State1) end); - [{MsgId, Msg, _CacheRefCount}] -> + [{MsgId, Msg, 0}] -> %% The remove overtook the write, and because of that, we %% know a read can't be following, so it's ok to remove %% from the cache. -- cgit v1.2.1 From b096a3121ff599733d1f1e511c5e4465ef5f14ac Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 11 Aug 2011 16:25:24 +0100 Subject: Add test specifically to try and stress the msg_store client delete_and_terminate quick path --- src/rabbit_tests.erl | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index ed4efb47..d5ed1762 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1740,6 +1740,7 @@ test_backing_queue() -> passed = test_msg_store(), application:set_env(rabbit, msg_store_file_size_limit, FileSizeLimit, infinity), + passed = test_msg_store_quick_client_delete(), passed = test_queue_index(), passed = test_queue_index_props(), passed = test_variable_queue(), @@ -1952,6 +1953,33 @@ test_msg_store() -> restart_msg_store_empty(), passed. +test_msg_store_quick_client_delete() -> + Ref = rabbit_guid:guid(), + MSCState1 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), + BigCount = 100000, + MsgIdsBig = [MsgId1|_] = [msg_id_bin(X) || X <- lists:seq(1, BigCount)], + + ok = msg_store_write(MsgIdsBig, MSCState1), + %% force these writes + true = msg_store_contains(true, [MsgId1], MSCState1), + ok = msg_store_remove(MsgIdsBig, MSCState1), + %% force the removes + false = msg_store_contains(false, [MsgId1], MSCState1), + + ok = msg_store_write(MsgIdsBig, MSCState1), + %% do remove 1-by-1 to flood msg_store with work + [ok = msg_store_remove([MsgId], MSCState1) || MsgId <- MsgIdsBig], + ok = rabbit_msg_store:client_delete_and_terminate(MSCState1), + + %% Now do something sync so that we ensure the quick path death + %% stuff does work. + MSCState2 = msg_store_client_init(?PERSISTENT_MSG_STORE, Ref), + ok = rabbit_msg_store:client_terminate(MSCState2), + + %% restart empty + restart_msg_store_empty(), + passed. + queue_name(Name) -> rabbit_misc:r(<<"/">>, queue, Name). -- cgit v1.2.1 From e389acda8d8abf8a3fae4c73b6314f2ecc6b52db Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 11 Aug 2011 17:00:12 +0100 Subject: once we've changed the file size limit, restart the msg store to ensure it takes effect --- src/rabbit_tests.erl | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index d5ed1762..6e19de8c 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1737,9 +1737,11 @@ test_backing_queue() -> application:get_env(rabbit, queue_index_max_journal_entries), application:set_env(rabbit, queue_index_max_journal_entries, 128, infinity), + restart_msg_store_empty(), passed = test_msg_store(), application:set_env(rabbit, msg_store_file_size_limit, FileSizeLimit, infinity), + restart_msg_store_empty(), passed = test_msg_store_quick_client_delete(), passed = test_queue_index(), passed = test_queue_index_props(), -- cgit v1.2.1 From 5f785e38f4a12f86a124a15e90dd37a1ab3da71d Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 18 Aug 2011 13:00:15 +0100 Subject: Add mechanics for sending msgs suitably --- src/gen_server2.erl | 40 ++++++++++++++++++++++++++++++++++------ 1 file changed, 34 insertions(+), 6 deletions(-) diff --git a/src/gen_server2.erl b/src/gen_server2.erl index 35258139..10df9d3b 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -178,6 +178,7 @@ start_link/3, start_link/4, call/2, call/3, cast/2, reply/2, + pcall/2, pcall/3, pcast/2, abcast/2, abcast/3, multi_call/2, multi_call/3, multi_call/4, enter_loop/3, enter_loop/4, enter_loop/5, enter_loop/6, wake_hib/1]). @@ -263,19 +264,31 @@ start_link(Name, Mod, Args, Options) -> %% is handled here (? Shall we do that here (or rely on timeouts) ?). %% ----------------------------------------------------------------- call(Name, Request) -> - case catch gen:call(Name, '$gen_call', Request) of + do_call(Name, '$gen_call', Request, call). + +call(Name, Request, Timeout) -> + do_call(Name, '$gen_call', Request, Timeout, call). + +pcall(Name, Request) -> + do_call(Name, {'$gen_call', self()}, Request, pcall). + +pcall(Name, Request, Timeout) -> + do_call(Name, {'$gen_call', self()}, Request, Timeout, pcall). + +do_call(Name, Tag, Request, Call) -> + case catch gen:call(Name, Tag, Request) of {ok,Res} -> Res; {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request]}}) + exit({Reason, {?MODULE, Call, [Name, Request]}}) end. -call(Name, Request, Timeout) -> - case catch gen:call(Name, '$gen_call', Request, Timeout) of +do_call(Name, Tag, Request, Timeout, Call) -> + case catch gen:call(Name, Tag, Request, Timeout) of {ok,Res} -> Res; {'EXIT',Reason} -> - exit({Reason, {?MODULE, call, [Name, Request, Timeout]}}) + exit({Reason, {?MODULE, Call, [Name, Request, Timeout]}}) end. %% ----------------------------------------------------------------- @@ -291,11 +304,26 @@ cast(Dest, Request) when is_atom(Dest) -> cast(Dest, Request) when is_pid(Dest) -> do_cast(Dest, Request). +pcast({global,Name}, Request) -> + catch global:send(Name, pcast_msg(Request, self())), + ok; +pcast({Name,Node}=Dest, Request) when is_atom(Name), is_atom(Node) -> + do_pcast(Dest, Request); +pcast(Dest, Request) when is_atom(Dest) -> + do_pcast(Dest, Request); +pcast(Dest, Request) when is_pid(Dest) -> + do_pcast(Dest, Request). + do_cast(Dest, Request) -> do_send(Dest, cast_msg(Request)), ok. -cast_msg(Request) -> {'$gen_cast',Request}. +do_pcast(Dest, Request) -> + do_send(Dest, pcast_msg(Request, self())), + ok. + +cast_msg(Request) -> {'$gen_cast', Request}. +pcast_msg(Request, Pid) -> {{'$gen_cast', Pid}, Request}. %% ----------------------------------------------------------------- %% Send a reply to the client. -- cgit v1.2.1 From 3d17a4606dc9414a7afc5ddf792458c29d6c461a Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 18 Aug 2011 14:02:15 +0100 Subject: Well, it compiles. However, bits of it I don't like. --- src/gen_server2.erl | 64 ++++++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 59 insertions(+), 5 deletions(-) diff --git a/src/gen_server2.erl b/src/gen_server2.erl index 10df9d3b..7fb40cf3 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -408,7 +408,7 @@ enter_loop(Mod, Options, State, ServerName, Timeout, Backoff) -> loop(find_prioritisers( #gs2_state { parent = Parent, name = Name, state = State, mod = Mod, time = Timeout, timeout_state = Backoff1, - queue = Queue, debug = Debug })). + queue = {single, Queue}, debug = Debug })). %%%======================================================================== %%% Gen-callback functions @@ -431,7 +431,7 @@ init_it(Starter, Parent, Name0, Mod, Args, Options) -> #gs2_state { parent = Parent, name = Name, mod = Mod, - queue = Queue, + queue = {single, Queue}, debug = Debug }), case catch Mod:init(Args) of {ok, State} -> @@ -516,7 +516,7 @@ drain(GS2State) -> process_next_msg(GS2State = #gs2_state { time = Time, timeout_state = TimeoutState, queue = Queue }) -> - case priority_queue:out(Queue) of + case out(Queue) of {{value, Msg}, Queue1} -> process_msg(Msg, GS2State #gs2_state { queue = Queue1 }); {empty, Queue1} -> @@ -629,9 +629,15 @@ adjust_timeout_state(SleptAt, AwokeAt, {backoff, CurrentTO, MinimumTO, in({'$gen_cast', Msg} = Input, GS2State = #gs2_state { prioritise_cast = PC }) -> in(Input, PC(Msg, GS2State), GS2State); +in({{'$gen_cast', Pid}, Msg} = Input, + GS2State = #gs2_state { prioritise_cast = PC }) -> + in(Input, Pid, PC(Msg, GS2State), GS2State); in({'$gen_call', From, Msg} = Input, GS2State = #gs2_state { prioritise_call = PC }) -> in(Input, PC(Msg, From, GS2State), GS2State); +in({{'$gen_call', Pid}, From, Msg} = Input, + GS2State = #gs2_state { prioritise_call = PC }) -> + in(Input, Pid, PC(Msg, From, GS2State), GS2State); in({'EXIT', Parent, _R} = Input, GS2State = #gs2_state { parent = Parent }) -> in(Input, infinity, GS2State); in({system, _From, _Req} = Input, GS2State) -> @@ -639,8 +645,56 @@ in({system, _From, _Req} = Input, GS2State) -> in(Input, GS2State = #gs2_state { prioritise_info = PI }) -> in(Input, PI(Input, GS2State), GS2State). -in(Input, Priority, GS2State = #gs2_state { queue = Queue }) -> - GS2State # gs2_state { queue = priority_queue:in(Input, Priority, Queue) }. +in(Input, Priority, GS2State = #gs2_state { queue = {single, Queue} }) -> + GS2State #gs2_state { + queue = {single, priority_queue:in(Input, Priority, Queue)} }; +in(Input, Priority, GS2State = #gs2_state { queue = {multiple, _, _} }) -> + in(Input, undefined, {infinity, Priority}, GS2State). + +in(Input, Pid, {Weight, Priority}, + GS2State = #gs2_state { queue = {multiple, Order, Queues} }) -> + {TotalWeight, Queue} = case orddict:find(Pid, Queues) of + error -> {0, priority_queue:new()}; + {ok, V} -> V + end, + Queue1 = priority_queue:in({Weight, Input}, Priority, Queue), + TotalWeight1 = sum_weights(TotalWeight, Weight), + Order1 = gb_trees:enter({TotalWeight1, Pid}, ok, + gb_trees:delete_any({TotalWeight, Pid}, Order)), + GS2State #gs2_state { + queue = {multiple, Order1, + orddict:store(Pid, {TotalWeight1, Queue1}, Queues)} }; +in(Input, Pid, {Weight, Priority}, + GS2State = #gs2_state { queue = {single, Queue} }) -> + Order = gb_trees:from_orddict([{{infinity, undefined}, ok}]), + Queues = orddict:from_list([{undefined, Queue}]), + in(Input, Pid, {Weight, Priority}, + GS2State #gs2_state { queue = {multiple, Order, Queues} }). + +out({single, Queue}) -> + {Result, Queue1} = priority_queue:out(Queue), + {Result, {single, Queue1}}; +out({multiple, Order, Queues}) -> + {{TotalWeight, Pid}, ok, Order1} = gb_trees:take_largest(Order), + Queue = orddict:fetch(Pid, Queues), + {{value, {Weight, Result}}, Queue1} = priority_queue:out(Queue), + case {priority_queue:is_empty(Queue1), gb_trees:size(Order1)} of + {true, 1} -> {{_TotalWeight, OnlyPid}, ok} = gb_trees:largest(Order1), + {Result, {single, orddict:fetch(OnlyPid, Queues)}}; + {true, _} -> {Result, {multiple, Order1, orddict:erase(Pid, Queues)}}; + _ -> TotalWeight1 = subtract_weights(TotalWeight, Weight), + {Result, {multiple, + gb_trees:enter({TotalWeight1, Pid}, ok, Order1), + orddict:store(Pid, Queue1, Queues)}} + end. + +sum_weights(infinity, _) -> infinity; +sum_weights(_, infinity) -> infinity; +sum_weights(A, B) -> A+B. + +subtract_weights(infinity, _) -> infinity; +subtract_weights(_, infinity) -> infinity; +subtract_weights(A, B) -> A - B. process_msg({system, From, Req}, GS2State = #gs2_state { parent = Parent, debug = Debug }) -> -- cgit v1.2.1 From d565f273bd2643a2c69f824482418ff11559d8f6 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 18 Aug 2011 14:55:08 +0100 Subject: Happier with this now. I wonder whether it works though --- src/gen_server2.erl | 59 ++++++++++++++++++++++++++++++++++------------------- 1 file changed, 38 insertions(+), 21 deletions(-) diff --git a/src/gen_server2.erl b/src/gen_server2.erl index 7fb40cf3..b3fddb27 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -645,6 +645,8 @@ in({system, _From, _Req} = Input, GS2State) -> in(Input, GS2State = #gs2_state { prioritise_info = PI }) -> in(Input, PI(Input, GS2State), GS2State). +in(Input, {Weight, Priority}, GS2State) -> + in(Input, undefined, {Weight, Priority}, GS2State); in(Input, Priority, GS2State = #gs2_state { queue = {single, Queue} }) -> GS2State #gs2_state { queue = {single, priority_queue:in(Input, Priority, Queue)} }; @@ -653,21 +655,28 @@ in(Input, Priority, GS2State = #gs2_state { queue = {multiple, _, _} }) -> in(Input, Pid, {Weight, Priority}, GS2State = #gs2_state { queue = {multiple, Order, Queues} }) -> - {TotalWeight, Queue} = case orddict:find(Pid, Queues) of - error -> {0, priority_queue:new()}; - {ok, V} -> V - end, - Queue1 = priority_queue:in({Weight, Input}, Priority, Queue), - TotalWeight1 = sum_weights(TotalWeight, Weight), - Order1 = gb_trees:enter({TotalWeight1, Pid}, ok, - gb_trees:delete_any({TotalWeight, Pid}, Order)), + {TotalWeight, Length, Queue, Order1} = + case orddict:find(Pid, Queues) of + error -> + {0, 0, priority_queue:new()}; + {ok, {AvgWeight1, Queue1}} -> + {TotalWeight1, Len} = gb_trees:get({AvgWeight1, Pid}, Order), + {TotalWeight1, Len, Queue1, + gb_trees:delete({AvgWeight1, Pid}, Order)} + end, + Queue2 = priority_queue:in({Weight, Input}, Priority, Queue), + TotalWeight2 = sum_weights(TotalWeight, Weight), + Length2 = Length + 1, + AvgWeight2 = avg_weights(TotalWeight2, Length2), + Order2 = gb_trees:enter({AvgWeight2, Pid}, {TotalWeight2, Length2}, Order1), GS2State #gs2_state { - queue = {multiple, Order1, - orddict:store(Pid, {TotalWeight1, Queue1}, Queues)} }; + queue = {multiple, Order2, + orddict:store(Pid, {AvgWeight2, Queue2}, Queues)} }; in(Input, Pid, {Weight, Priority}, GS2State = #gs2_state { queue = {single, Queue} }) -> - Order = gb_trees:from_orddict([{{infinity, undefined}, ok}]), - Queues = orddict:from_list([{undefined, Queue}]), + Order = gb_trees:from_orddict([{{infinity, undefined}, + {infinity, priority_queue:len(Queue)}}]), + Queues = orddict:from_list([{undefined, {infinity, Queue}}]), in(Input, Pid, {Weight, Priority}, GS2State #gs2_state { queue = {multiple, Order, Queues} }). @@ -675,17 +684,22 @@ out({single, Queue}) -> {Result, Queue1} = priority_queue:out(Queue), {Result, {single, Queue1}}; out({multiple, Order, Queues}) -> - {{TotalWeight, Pid}, ok, Order1} = gb_trees:take_largest(Order), - Queue = orddict:fetch(Pid, Queues), + {{AvgWeight, Pid}, {TotalWeight, Length}, Order1} = + gb_trees:take_largest(Order), + {AvgWeight, Queue} = orddict:fetch(Pid, Queues), {{value, {Weight, Result}}, Queue1} = priority_queue:out(Queue), - case {priority_queue:is_empty(Queue1), gb_trees:size(Order1)} of - {true, 1} -> {{_TotalWeight, OnlyPid}, ok} = gb_trees:largest(Order1), - {Result, {single, orddict:fetch(OnlyPid, Queues)}}; - {true, _} -> {Result, {multiple, Order1, orddict:erase(Pid, Queues)}}; + case {Length, gb_trees:keys(Order1) == [{infinity, undefined}]} of + {1, true} -> {infinity, OnlyQueue} = orddict:fetch(undefined, Queues), + {Result, {single, OnlyQueue}}; + {1, _} -> {Result, {multiple, Order1, orddict:erase(Pid, Queues)}}; _ -> TotalWeight1 = subtract_weights(TotalWeight, Weight), - {Result, {multiple, - gb_trees:enter({TotalWeight1, Pid}, ok, Order1), - orddict:store(Pid, Queue1, Queues)}} + Length1 = Length - 1, + AvgWeight1 = avg_weights(TotalWeight1, Length1), + {Result, + {multiple, + gb_trees:enter( + {AvgWeight1, Pid}, {TotalWeight1, Length1}, Order1), + orddict:store(Pid, {AvgWeight1, Queue1}, Queues)}} end. sum_weights(infinity, _) -> infinity; @@ -696,6 +710,9 @@ subtract_weights(infinity, _) -> infinity; subtract_weights(_, infinity) -> infinity; subtract_weights(A, B) -> A - B. +avg_weights(infinity, _) -> infinity; +avg_weights(A, B) -> A / B. + process_msg({system, From, Req}, GS2State = #gs2_state { parent = Parent, debug = Debug }) -> sys:handle_system_msg(Req, From, Parent, ?MODULE, Debug, GS2State); -- cgit v1.2.1 From 8a80bdd4980651810aa92b09d896d80b5e8ad229 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 18 Aug 2011 16:56:23 +0100 Subject: Well I still don't know if it works. But it's rather more logical now --- src/gen_server2.erl | 130 ++++++++++++++++++++++++++++++---------------------- 1 file changed, 74 insertions(+), 56 deletions(-) diff --git a/src/gen_server2.erl b/src/gen_server2.erl index b3fddb27..e302b7db 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -408,7 +408,7 @@ enter_loop(Mod, Options, State, ServerName, Timeout, Backoff) -> loop(find_prioritisers( #gs2_state { parent = Parent, name = Name, state = State, mod = Mod, time = Timeout, timeout_state = Backoff1, - queue = {single, Queue}, debug = Debug })). + queue = {single, 0, 0, 0, Queue}, debug = Debug })). %%%======================================================================== %%% Gen-callback functions @@ -431,7 +431,7 @@ init_it(Starter, Parent, Name0, Mod, Args, Options) -> #gs2_state { parent = Parent, name = Name, mod = Mod, - queue = {single, Queue}, + queue = {single, 0, 0, 0, Queue}, debug = Debug }), case catch Mod:init(Args) of {ok, State} -> @@ -647,71 +647,89 @@ in(Input, GS2State = #gs2_state { prioritise_info = PI }) -> in(Input, {Weight, Priority}, GS2State) -> in(Input, undefined, {Weight, Priority}, GS2State); -in(Input, Priority, GS2State = #gs2_state { queue = {single, Queue} }) -> - GS2State #gs2_state { - queue = {single, priority_queue:in(Input, Priority, Queue)} }; -in(Input, Priority, GS2State = #gs2_state { queue = {multiple, _, _} }) -> - in(Input, undefined, {infinity, Priority}, GS2State). +in(Input, Priority, GS2State) -> + in(Input, undefined, {0, Priority}, GS2State). +in(Input, undefined, {Weight, Priority}, + GS2State = #gs2_state { queue = {single, NonInfSum, InfCount, QLen, Q} }) -> + {NonInfSum1, InfCount1} = sum_weights({NonInfSum, InfCount}, Weight), + GS2State #gs2_state { + queue = {single, NonInfSum1, InfCount1, QLen + 1, + priority_queue:in({Weight, Input}, Priority, Q)} }; +in(Input, Pid, {Weight, Priority}, + GS2State = #gs2_state { queue = {single, NonInfSum, InfCount, QLen, Q} }) -> + AvgWeight = avg_weights({NonInfSum, InfCount}, QLen), + PidAvgWeight = orddict:from_list([{undefined, AvgWeight}]), + Queues = gb_trees:from_orddict( + [{{AvgWeight, undefined}, {NonInfSum, InfCount, QLen, Q}}]), + in(Input, Pid, {Weight, Priority}, + GS2State #gs2_state { queue = {multiple, PidAvgWeight, Queues} }); in(Input, Pid, {Weight, Priority}, - GS2State = #gs2_state { queue = {multiple, Order, Queues} }) -> - {TotalWeight, Length, Queue, Order1} = - case orddict:find(Pid, Queues) of + GS2State = #gs2_state { queue = {multiple, PidAvgWeight, Queues} }) -> + {NonInfSum, InfCount, QLen, Q, Queues1} = + case orddict:find(Pid, PidAvgWeight) of error -> - {0, 0, priority_queue:new()}; - {ok, {AvgWeight1, Queue1}} -> - {TotalWeight1, Len} = gb_trees:get({AvgWeight1, Pid}, Order), - {TotalWeight1, Len, Queue1, - gb_trees:delete({AvgWeight1, Pid}, Order)} + {0, 0, 0, priority_queue:new(), Queues}; + {ok, AvgWeight} -> + {NonInfSum1, InfCount1, QLen1, Q1} + = gb_trees:get({AvgWeight, Pid}, Queues), + {NonInfSum1, InfCount1, QLen1, Q1, + gb_trees:delete({AvgWeight, Pid}, Queues)} end, - Queue2 = priority_queue:in({Weight, Input}, Priority, Queue), - TotalWeight2 = sum_weights(TotalWeight, Weight), - Length2 = Length + 1, - AvgWeight2 = avg_weights(TotalWeight2, Length2), - Order2 = gb_trees:enter({AvgWeight2, Pid}, {TotalWeight2, Length2}, Order1), + Q2 = priority_queue:in({Weight, Input}, Priority, Q), + QLen2 = QLen + 1, + {NonInfSum2, InfCount2} = sum_weights({NonInfSum, InfCount}, Weight), + AvgWeight2 = avg_weights({NonInfSum2, InfCount2}, QLen2), + Queues2 = gb_trees:enter( + {AvgWeight2, Pid}, {NonInfSum2, InfCount2, QLen2, Q2}, Queues1), GS2State #gs2_state { - queue = {multiple, Order2, - orddict:store(Pid, {AvgWeight2, Queue2}, Queues)} }; -in(Input, Pid, {Weight, Priority}, - GS2State = #gs2_state { queue = {single, Queue} }) -> - Order = gb_trees:from_orddict([{{infinity, undefined}, - {infinity, priority_queue:len(Queue)}}]), - Queues = orddict:from_list([{undefined, {infinity, Queue}}]), - in(Input, Pid, {Weight, Priority}, - GS2State #gs2_state { queue = {multiple, Order, Queues} }). - -out({single, Queue}) -> - {Result, Queue1} = priority_queue:out(Queue), - {Result, {single, Queue1}}; -out({multiple, Order, Queues}) -> - {{AvgWeight, Pid}, {TotalWeight, Length}, Order1} = - gb_trees:take_largest(Order), - {AvgWeight, Queue} = orddict:fetch(Pid, Queues), - {{value, {Weight, Result}}, Queue1} = priority_queue:out(Queue), - case {Length, gb_trees:keys(Order1) == [{infinity, undefined}]} of - {1, true} -> {infinity, OnlyQueue} = orddict:fetch(undefined, Queues), - {Result, {single, OnlyQueue}}; - {1, _} -> {Result, {multiple, Order1, orddict:erase(Pid, Queues)}}; - _ -> TotalWeight1 = subtract_weights(TotalWeight, Weight), - Length1 = Length - 1, - AvgWeight1 = avg_weights(TotalWeight1, Length1), + queue = {multiple, orddict:store(Pid, AvgWeight2, PidAvgWeight), Queues2} + }. + +out({single, _NonInfSum, _InfCount, 0, _Q} = Queue) -> + {empty, Queue}; +out({single, NonInfSum, InfCount, QLen, Q}) -> + {{value, {Weight, Result}}, Queue1} = priority_queue:out(Q), + {NonInfSum1, InfCount1} = subtract_weights({NonInfSum, InfCount}, Weight), + {Result, {single, NonInfSum1, InfCount1, QLen - 1, Queue1}}; +out({multiple, PidAvgWeight, Queues} = Queue) -> + {{_AvgWeight, Pid}, {NonInfSum, InfCount, QLen, Q}, Queues1} = + gb_trees:take_largest(Queues), + case QLen of + 0 -> {empty, Queue}; + _ -> {{value, {Weight, Result}}, Q1} = priority_queue:out(Q), + case {Pid =/= undefined andalso QLen =:= 1, + gb_trees:size(Queues1) =:= 1 andalso + gb_trees:keys(Queues1) == [{infinity, undefined}]} of + {true, true} -> + {NonInfSum1, InfCount1, QLen1, Q2} = + gb_trees:get({infinity, undefined}, Queues1), + {Result, {single, NonInfSum1, InfCount1, QLen1, Q2}}; + {true, _} -> + {Result, + {multiple, orddict:erase(Pid, PidAvgWeight), Queues1}}; + _ -> + {NonInfSum1, InfCount1} = + subtract_weights({NonInfSum, InfCount}, Weight), + QLen1 = QLen - 1, + AvgWeight1 = avg_weights({NonInfSum1, InfCount1}, QLen1), {Result, - {multiple, + {multiple, orddict:store(Pid, AvgWeight1, PidAvgWeight), gb_trees:enter( - {AvgWeight1, Pid}, {TotalWeight1, Length1}, Order1), - orddict:store(Pid, {AvgWeight1, Queue1}, Queues)}} + {AvgWeight1, Pid}, + {NonInfSum1, InfCount1, QLen1, Q1}, Queues)}} + end end. -sum_weights(infinity, _) -> infinity; -sum_weights(_, infinity) -> infinity; -sum_weights(A, B) -> A+B. +sum_weights({NonInfSum, InfCount}, infinity) -> {NonInfSum, InfCount + 1}; +sum_weights({NonInfSum, InfCount}, N) -> {NonInfSum + N, InfCount}. -subtract_weights(infinity, _) -> infinity; -subtract_weights(_, infinity) -> infinity; -subtract_weights(A, B) -> A - B. +subtract_weights({NonInfSum, InfCount}, infinity) -> {NonInfSum, InfCount - 1}; +subtract_weights({NonInfSum, InfCount}, N) -> {NonInfSum - N, InfCount}. -avg_weights(infinity, _) -> infinity; -avg_weights(A, B) -> A / B. +avg_weights({_NonInfSum, 0}, 0) -> 0; +avg_weights({ NonInfSum, 0}, N) -> NonInfSum / N; +avg_weights({_NonInfSum, _}, _) -> infinity. process_msg({system, From, Req}, GS2State = #gs2_state { parent = Parent, debug = Debug }) -> -- cgit v1.2.1 From 142c04a34dd99f722621ec9c96b483ac11c9831f Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 18 Aug 2011 17:27:23 +0100 Subject: Well, it sort of works. Up to a point. After that, it doesn't. --- src/gen_server2.erl | 42 ++++++++++++++++++++++++------------------ 1 file changed, 24 insertions(+), 18 deletions(-) diff --git a/src/gen_server2.erl b/src/gen_server2.erl index e302b7db..5ed7f8b5 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -629,15 +629,15 @@ adjust_timeout_state(SleptAt, AwokeAt, {backoff, CurrentTO, MinimumTO, in({'$gen_cast', Msg} = Input, GS2State = #gs2_state { prioritise_cast = PC }) -> in(Input, PC(Msg, GS2State), GS2State); -in({{'$gen_cast', Pid}, Msg} = Input, +in({{'$gen_cast', Pid}, Msg}, GS2State = #gs2_state { prioritise_cast = PC }) -> - in(Input, Pid, PC(Msg, GS2State), GS2State); + in({'$gen_cast', Msg}, Pid, PC(Msg, GS2State), GS2State); in({'$gen_call', From, Msg} = Input, GS2State = #gs2_state { prioritise_call = PC }) -> in(Input, PC(Msg, From, GS2State), GS2State); -in({{'$gen_call', Pid}, From, Msg} = Input, +in({{'$gen_call', Pid}, From, Msg}, GS2State = #gs2_state { prioritise_call = PC }) -> - in(Input, Pid, PC(Msg, From, GS2State), GS2State); + in({'$gen_call', From, Msg}, Pid, PC(Msg, From, GS2State), GS2State); in({'EXIT', Parent, _R} = Input, GS2State = #gs2_state { parent = Parent }) -> in(Input, infinity, GS2State); in({system, _From, _Req} = Input, GS2State) -> @@ -691,13 +691,14 @@ out({single, _NonInfSum, _InfCount, 0, _Q} = Queue) -> out({single, NonInfSum, InfCount, QLen, Q}) -> {{value, {Weight, Result}}, Queue1} = priority_queue:out(Q), {NonInfSum1, InfCount1} = subtract_weights({NonInfSum, InfCount}, Weight), - {Result, {single, NonInfSum1, InfCount1, QLen - 1, Queue1}}; + {{value, Result}, {single, NonInfSum1, InfCount1, QLen - 1, Queue1}}; out({multiple, PidAvgWeight, Queues} = Queue) -> {{_AvgWeight, Pid}, {NonInfSum, InfCount, QLen, Q}, Queues1} = gb_trees:take_largest(Queues), case QLen of 0 -> {empty, Queue}; - _ -> {{value, {Weight, Result}}, Q1} = priority_queue:out(Q), + _ -> {{value, {Weight, V}}, Q1} = priority_queue:out(Q), + Result = {value, V}, case {Pid =/= undefined andalso QLen =:= 1, gb_trees:size(Queues1) =:= 1 andalso gb_trees:keys(Queues1) == [{infinity, undefined}]} of @@ -1233,30 +1234,35 @@ find_prioritisers(GS2State = #gs2_state { mod = Mod }) -> Mod, 'prioritise_call', 3, fun (_Msg, _From, _State) -> 0 end), PrioriCast = function_exported_or_default(Mod, 'prioritise_cast', 2, - fun (_Msg, _State) -> 0 end), + fun (_Msg, _State) -> {0, 0} end), PrioriInfo = function_exported_or_default(Mod, 'prioritise_info', 2, - fun (_Msg, _State) -> 0 end), + fun (_Msg, _State) -> {0, 0} end), GS2State #gs2_state { prioritise_call = PrioriCall, prioritise_cast = PrioriCast, prioritise_info = PrioriInfo }. +is_valid_priority(infinity) -> true; +is_valid_priority(N) when is_integer(N) -> true; +is_valid_priority({A, B}) -> is_valid_priority(A) andalso is_valid_priority(B); +is_valid_priority(_) -> false. + function_exported_or_default(Mod, Fun, Arity, Default) -> case erlang:function_exported(Mod, Fun, Arity) of true -> case Arity of 2 -> fun (Msg, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) + Res = (catch Mod:Fun(Msg, State)), + case is_valid_priority(Res) of + true -> Res; + false -> handle_common_termination( + Res, Msg, GS2State) end end; 3 -> fun (Msg, From, GS2State = #gs2_state { state = State }) -> - case catch Mod:Fun(Msg, From, State) of - Res when is_integer(Res) -> - Res; - Err -> - handle_common_termination(Err, Msg, GS2State) + Res = (catch Mod:Fun(Msg, From, State)), + case is_valid_priority(Res) of + true -> Res; + false -> handle_common_termination( + Res, Msg, GS2State) end end end; -- cgit v1.2.1 From 8cc3c8041a76a4bec0682ddedf17b13b61ea7436 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Thu, 18 Aug 2011 18:00:37 +0100 Subject: Getting closer --- src/gen_server2.erl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/gen_server2.erl b/src/gen_server2.erl index 5ed7f8b5..da60bdfd 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -700,11 +700,11 @@ out({multiple, PidAvgWeight, Queues} = Queue) -> _ -> {{value, {Weight, V}}, Q1} = priority_queue:out(Q), Result = {value, V}, case {Pid =/= undefined andalso QLen =:= 1, - gb_trees:size(Queues1) =:= 1 andalso - gb_trees:keys(Queues1) == [{infinity, undefined}]} of + gb_trees:size(Queues1) =:= 1} of {true, true} -> + AvgWeight = orddict:fetch(undefined, PidAvgWeight), {NonInfSum1, InfCount1, QLen1, Q2} = - gb_trees:get({infinity, undefined}, Queues1), + gb_trees:get({AvgWeight, undefined}, Queues1), {Result, {single, NonInfSum1, InfCount1, QLen1, Q2}}; {true, _} -> {Result, -- cgit v1.2.1 From 4084aa3544416b9af04883263c06072ff4d1bb5c Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 19 Aug 2011 14:10:19 +0100 Subject: All fixed. --- src/gen_server2.erl | 65 +++++++++++++++++++++++++++++------ src/gen_server2_tests.erl | 76 +++++++++++++++++++++++++++++++++++++++++ src/rabbit_amqqueue.erl | 32 ++++++++--------- src/rabbit_amqqueue_process.erl | 43 ++++++++++++----------- src/rabbit_misc.erl | 18 +++++----- src/rabbit_tests.erl | 1 + 6 files changed, 181 insertions(+), 54 deletions(-) create mode 100644 src/gen_server2_tests.erl diff --git a/src/gen_server2.erl b/src/gen_server2.erl index da60bdfd..4ef90a2a 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -19,9 +19,40 @@ %% 4) The callback module can optionally implement prioritise_call/3, %% prioritise_cast/2 and prioritise_info/2. These functions take %% Message, From and State or just Message and State and return a -%% single integer representing the priority attached to the message. -%% Messages with higher priorities are processed before requests with -%% lower priorities. The default priority is 0. +%% either a single integer or 'infinity', or a tuple of 2 elements +%% where each element is a single integer or 'infinity'. The meaning +%% is as follows: +%% +%% a) Returning a tuple is returning {Weight, Priority} +%% b) Returning a single element is returning {0, Priority} +%% +%% If gen_server2:pcall or gen_server2:pcast are used, then the +%% message will end up in a queue specifically for messages from that +%% sending Pid. The queue's weight is the average weights of the +%% messages within that queue, as determined by the prioritise_* +%% callbacks. Within that queue, priorities apply, and thus can +%% reorder messages from the same Pid. +%% +%% If gen_server2:call, gen_server2:cast or just ! are used, then the +%% gen_server2 process does not known the sender. These messages are +%% placed into a queue containing all messages for which the sender is +%% not known. Again, this queue has a weight which is the average of +%% the weights of the messages in the queue, and again, priorities can +%% reorder messages within this queue. +%% +%% The next message processed by the gen_server2 callback module is +%% the highest priority message taken from the queue with the largest +%% weight. +%% +%% If you wish only for messages to be reordered by priority and the +%% sender to be ignored, then do not use :pcall or :pcast, and have +%% prioritise_* return single elements or {0, Priority}. +%% +%% If you wish for messages to be sorted per sender, and wish to +%% prioritise particular senders based on detection of more important +%% messages, but otherwise want to ensure that messages from the same +%% sender are processed in the same order, then always use :pcall and +%% :pcast and have prioritise_* functions return {Weight, 0}. %% %% 5) The callback module can optionally implement %% handle_pre_hibernate/1 and handle_post_hibernate/1. These will be @@ -639,9 +670,9 @@ in({{'$gen_call', Pid}, From, Msg}, GS2State = #gs2_state { prioritise_call = PC }) -> in({'$gen_call', From, Msg}, Pid, PC(Msg, From, GS2State), GS2State); in({'EXIT', Parent, _R} = Input, GS2State = #gs2_state { parent = Parent }) -> - in(Input, infinity, GS2State); + in(Input, {infinity, infinity}, GS2State); in({system, _From, _Req} = Input, GS2State) -> - in(Input, infinity, GS2State); + in(Input, {infinity, infinity}, GS2State); in(Input, GS2State = #gs2_state { prioritise_info = PI }) -> in(Input, PI(Input, GS2State), GS2State). @@ -684,7 +715,9 @@ in(Input, Pid, {Weight, Priority}, {AvgWeight2, Pid}, {NonInfSum2, InfCount2, QLen2, Q2}, Queues1), GS2State #gs2_state { queue = {multiple, orddict:store(Pid, AvgWeight2, PidAvgWeight), Queues2} - }. + }; +in(Input, Pid, Priority, GS2State) -> + in(Input, Pid, {0, Priority}, GS2State). out({single, _NonInfSum, _InfCount, 0, _Q} = Queue) -> {empty, Queue}; @@ -718,7 +751,7 @@ out({multiple, PidAvgWeight, Queues} = Queue) -> {multiple, orddict:store(Pid, AvgWeight1, PidAvgWeight), gb_trees:enter( {AvgWeight1, Pid}, - {NonInfSum1, InfCount1, QLen1, Q1}, Queues)}} + {NonInfSum1, InfCount1, QLen1, Q1}, Queues1)}} end end. @@ -1232,7 +1265,7 @@ name_to_pid(Name) -> find_prioritisers(GS2State = #gs2_state { mod = Mod }) -> PrioriCall = function_exported_or_default( Mod, 'prioritise_call', 3, - fun (_Msg, _From, _State) -> 0 end), + fun (_Msg, _From, _State) -> {0, 0} end), PrioriCast = function_exported_or_default(Mod, 'prioritise_cast', 2, fun (_Msg, _State) -> {0, 0} end), PrioriInfo = function_exported_or_default(Mod, 'prioritise_info', 2, @@ -1285,8 +1318,7 @@ format_status(Opt, StatusData) -> Log = sys:get_debug(log, Debug, []), Specfic = callback(Mod, format_status, [Opt, [PDict, State]], fun () -> [{data, [{"State", State}]}] end), - Messages = callback(Mod, format_message_queue, [Opt, Queue], - fun () -> priority_queue:to_list(Queue) end), + Messages = format_message_queue(Mod, Opt, Queue), [{header, Header}, {data, [{"Status", SysState}, {"Parent", Parent}, @@ -1294,6 +1326,19 @@ format_status(Opt, StatusData) -> {"Queued messages", Messages}]} | Specfic]. +format_message_queue(Mod, Opt, {single, _NonInfSum, _InfCount, _QLen, Q}) -> + format_message_queue_callback(Mod, Opt, Q); +format_message_queue(Mod, Opt, {multiple, PidAvgWeight, Queues}) -> + lists:keysort( + 1, [{{AvgWeight, Pid}, format_message_queue_callback(Mod, Opt, Q)} || + {Pid, AvgWeight} <- orddict:to_list(PidAvgWeight), + {_NonInfSum, _InfCount, _QLen, Q} <- + [gb_trees:get({AvgWeight, Pid}, Queues)]]). + +format_message_queue_callback(Mod, Opt, Queue) -> + callback(Mod, format_message_queue, [Opt, Queue], + fun () -> priority_queue:to_list(Queue) end). + callback(Mod, FunName, Args, DefaultThunk) -> case erlang:function_exported(Mod, FunName, length(Args)) of true -> case catch apply(Mod, FunName, Args) of diff --git a/src/gen_server2_tests.erl b/src/gen_server2_tests.erl new file mode 100644 index 00000000..56cc1aa8 --- /dev/null +++ b/src/gen_server2_tests.erl @@ -0,0 +1,76 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2011-2011 VMware, Inc. All rights reserved. +%% + +-module(gen_server2_tests). + +-compile([export_all]). + +-behaviour(gen_server2). + +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, + code_change/3, prioritise_call/3, prioritise_cast/2, + prioritise_info/2]). + +init([]) -> + {ok, queue:new()}. + +handle_call(pause, From, Q) -> + gen_server2:reply(From, ok), + timer:sleep(1000), + {noreply, queue:in({call, pause}, Q)}; +handle_call(stop, _From, Q) -> + Q1 = queue:in({call, stop}, Q), + {stop, normal, queue:to_list(Q1), Q1}; +handle_call(Msg, _From, Q) -> + {reply, ok, queue:in({call, Msg}, Q)}. + +handle_cast(Msg, Q) -> + {noreply, queue:in({cast, Msg}, Q)}. + +handle_info(Msg, Q) -> + {noreply, queue:in({info, Msg}, Q)}. + +terminate(_Reason, _Q) -> + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +prioritise_call(pause, _From, _State) -> {infinity, infinity}; +prioritise_call(stop, _From, _State) -> {0, 0}; +prioritise_call({W, P}, _From, _State) -> {W, P}; +prioritise_call(P, _From, _State) -> P. + +prioritise_cast({W, P}, _State) -> {W, P}; +prioritise_cast(P, _State) -> P. + +prioritise_info({W, P}, _State) -> {W, P}; +prioritise_info(P, _State) -> P. + +test() -> + {ok, Pid} = gen_server2:start_link(?MODULE, [], []), + unlink(Pid), + ok = gen_server2:pcall(Pid, pause, infinity), + [gen_server2:pcast(Pid, {W, P}) + || W <- [infinity | lists:seq(0, 10)], + P <- [infinity | lists:seq(0, 10)]], + Order = gen_server2:pcall(Pid, stop, infinity), + Order = [{call, pause} | + [{cast, {W, P}} || + P <- [infinity | lists:seq(10, 0, -1)], + W <- [infinity | lists:seq(0, 10)]] ++ + [{call, stop}]], + passed. diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 88ff26cc..574b3eaa 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -185,7 +185,7 @@ find_durable_queues() -> recover_durable_queues(DurableQueues) -> Qs = [start_queue_process(node(), Q) || Q <- DurableQueues], [QName || Q = #amqqueue{name = QName, pid = Pid} <- Qs, - gen_server2:call(Pid, {init, true}, infinity) == {new, Q}]. + gen_server2:pcall(Pid, {init, true}, infinity) == {new, Q}]. declare(QueueName, Durable, AutoDelete, Args, Owner) -> ok = check_declare_arguments(QueueName, Args), @@ -198,7 +198,7 @@ declare(QueueName, Durable, AutoDelete, Args, Owner) -> pid = none, slave_pids = [], mirror_nodes = MNodes}), - case gen_server2:call(Q#amqqueue.pid, {init, false}, infinity) of + case gen_server2:pcall(Q#amqqueue.pid, {init, false}, infinity) of not_found -> rabbit_misc:not_found(QueueName); Q1 -> Q1 end. @@ -389,7 +389,7 @@ info_all(VHostPath) -> map(VHostPath, fun (Q) -> info(Q) end). info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). force_event_refresh() -> - [gen_server2:cast(Q#amqqueue.pid, force_event_refresh) || Q <- list()], + [gen_server2:pcast(Q#amqqueue.pid, force_event_refresh) || Q <- list()], ok. consumers(#amqqueue{ pid = QPid }) -> @@ -411,7 +411,7 @@ stat(#amqqueue{pid = QPid}) -> delegate_call(QPid, stat). delete_immediately(#amqqueue{ pid = QPid }) -> - gen_server2:cast(QPid, delete_immediately). + gen_server2:pcast(QPid, delete_immediately). delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> delegate_call(QPid, {delete, IfUnused, IfEmpty}). @@ -419,12 +419,12 @@ delete(#amqqueue{ pid = QPid }, IfUnused, IfEmpty) -> purge(#amqqueue{ pid = QPid }) -> delegate_call(QPid, purge). deliver(QPid, Delivery = #delivery{immediate = true}) -> - gen_server2:call(QPid, {deliver_immediately, Delivery}, infinity); + gen_server2:pcall(QPid, {deliver_immediately, Delivery}, infinity); deliver(QPid, Delivery = #delivery{mandatory = true}) -> - gen_server2:call(QPid, {deliver, Delivery}, infinity), + gen_server2:pcall(QPid, {deliver, Delivery}, infinity), true; deliver(QPid, Delivery) -> - gen_server2:cast(QPid, {deliver, Delivery}), + gen_server2:pcast(QPid, {deliver, Delivery}), true. requeue(QPid, MsgIds, ChPid) -> @@ -438,12 +438,12 @@ reject(QPid, MsgIds, Requeue, ChPid) -> notify_down_all(QPids, ChPid) -> safe_delegate_call_ok( - fun (QPid) -> gen_server2:call(QPid, {notify_down, ChPid}, infinity) end, + fun (QPid) -> gen_server2:pcall(QPid, {notify_down, ChPid}, infinity) end, QPids). limit_all(QPids, ChPid, Limiter) -> delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {limit, ChPid, Limiter}) end). + QPids, fun (QPid) -> gen_server2:pcast(QPid, {limit, ChPid, Limiter}) end). basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> delegate_call(QPid, {basic_get, ChPid, NoAck}). @@ -457,14 +457,14 @@ basic_cancel(#amqqueue{pid = QPid}, ChPid, ConsumerTag, OkMsg) -> ok = delegate_call(QPid, {basic_cancel, ChPid, ConsumerTag, OkMsg}). notify_sent(QPid, ChPid) -> - gen_server2:cast(QPid, {notify_sent, ChPid}). + gen_server2:pcast(QPid, {notify_sent, ChPid}). unblock(QPid, ChPid) -> delegate_cast(QPid, {unblock, ChPid}). flush_all(QPids, ChPid) -> delegate:invoke_no_result( - QPids, fun (QPid) -> gen_server2:cast(QPid, {flush, ChPid}) end). + QPids, fun (QPid) -> gen_server2:pcast(QPid, {flush, ChPid}) end). internal_delete1(QueueName) -> ok = mnesia:delete({rabbit_queue, QueueName}), @@ -484,13 +484,13 @@ internal_delete(QueueName) -> end). run_backing_queue(QPid, Mod, Fun) -> - gen_server2:cast(QPid, {run_backing_queue, Mod, Fun}). + gen_server2:pcast(QPid, {run_backing_queue, Mod, Fun}). set_ram_duration_target(QPid, Duration) -> - gen_server2:cast(QPid, {set_ram_duration_target, Duration}). + gen_server2:pcast(QPid, {set_ram_duration_target, Duration}). set_maximum_since_use(QPid, Age) -> - gen_server2:cast(QPid, {set_maximum_since_use, Age}). + gen_server2:pcast(QPid, {set_maximum_since_use, Age}). on_node_down(Node) -> rabbit_misc:execute_mnesia_tx_with_tail( @@ -528,7 +528,7 @@ safe_delegate_call_ok(F, Pids) -> end. delegate_call(Pid, Msg) -> - delegate:invoke(Pid, fun (P) -> gen_server2:call(P, Msg, infinity) end). + delegate:invoke(Pid, fun (P) -> gen_server2:pcall(P, Msg, infinity) end). delegate_cast(Pid, Msg) -> - delegate:invoke_no_result(Pid, fun (P) -> gen_server2:cast(P, Msg) end). + delegate:invoke_no_result(Pid, fun (P) -> gen_server2:pcast(P, Msg) end). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 11a95a62..d47dc834 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -817,34 +817,37 @@ emit_consumer_deleted(ChPid, ConsumerTag) -> prioritise_call(Msg, _From, _State) -> case Msg of - info -> 9; - {info, _Items} -> 9; - consumers -> 9; - _ -> 0 + info -> {9, 0}; + {info, _Items} -> {9, 0}; + consumers -> {9, 0}; + stat -> {7, 0}; + {basic_consume, _, _, _, _, _, _} -> {7, 0}; + {basic_cancel, _, _, _} -> {7, 0}; + _ -> {0, 0} end. prioritise_cast(Msg, _State) -> case Msg of - delete_immediately -> 8; - {set_ram_duration_target, _Duration} -> 8; - {set_maximum_since_use, _Age} -> 8; - {ack, _AckTags, _ChPid} -> 7; - {reject, _AckTags, _Requeue, _ChPid} -> 7; - {notify_sent, _ChPid} -> 7; - {unblock, _ChPid} -> 7; - {run_backing_queue, _Mod, _Fun} -> 6; - _ -> 0 + delete_immediately -> {8, 0}; + {set_ram_duration_target, _Duration} -> {8, 0}; + {set_maximum_since_use, _Age} -> {8, 0}; + {ack, _AckTags, _ChPid} -> {7, 0}; + {reject, _AckTags, _Requeue, _ChPid} -> {7, 0}; + {notify_sent, _ChPid} -> {7, 0}; + {unblock, _ChPid} -> {7, 0}; + {run_backing_queue, _Mod, _Fun} -> {6, 0}; + _ -> {0, 0} end. prioritise_info(Msg, #q{q = #amqqueue{exclusive_owner = DownPid}}) -> case Msg of - {'DOWN', _, process, DownPid, _} -> 8; - update_ram_duration -> 8; - maybe_expire -> 8; - drop_expired -> 8; - emit_stats -> 7; - sync_timeout -> 6; - _ -> 0 + {'DOWN', _, process, DownPid, _} -> {8, 0}; + update_ram_duration -> {8, 0}; + maybe_expire -> {8, 0}; + drop_expired -> {8, 0}; + emit_stats -> {7, 0}; + sync_timeout -> {6, 0}; + _ -> {0, 0} end. handle_call({init, Recover}, From, diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index ae28722a..aece7d57 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -940,14 +940,16 @@ format_message_queue(_Opt, MQ) -> Len = priority_queue:len(MQ), {Len, case Len > 100 of - false -> priority_queue:to_list(MQ); - true -> {summary, - orddict:to_list( - lists:foldl( - fun ({P, V}, Counts) -> - orddict:update_counter( - {P, format_message_queue_entry(V)}, 1, Counts) - end, orddict:new(), priority_queue:to_list(MQ)))} + false -> + priority_queue:to_list(MQ); + true -> + {summary, + orddict:to_list( + lists:foldl( + fun ({P, {W, V}}, Counts) -> + orddict:update_counter( + {P, W, format_message_queue_entry(V)}, 1, Counts) + end, orddict:new(), priority_queue:to_list(MQ)))} end}. format_message_queue_entry(V) when is_atom(V) -> diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index bbca55b4..b687d5d1 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -38,6 +38,7 @@ test_content_prop_roundtrip(Datum, Binary) -> all_tests() -> passed = gm_tests:all_tests(), + passed = gen_server2_tests:test(), passed = mirrored_supervisor_tests:all_tests(), application:set_env(rabbit, file_handles_high_watermark, 10, infinity), ok = file_handle_cache:set_limit(10), -- cgit v1.2.1 From 179fea130b44d07e82d5a72e9736d79ee28a3e28 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 22 Aug 2011 13:27:31 +0100 Subject: Basic machinery for passing through the format_status call --- include/rabbit_backing_queue_spec.hrl | 2 ++ src/rabbit_amqqueue_process.erl | 8 +++++++- src/rabbit_backing_queue.erl | 7 ++++++- src/rabbit_variable_queue.erl | 5 ++++- 4 files changed, 19 insertions(+), 3 deletions(-) diff --git a/include/rabbit_backing_queue_spec.hrl b/include/rabbit_backing_queue_spec.hrl index ee102f5e..37ab91bc 100644 --- a/include/rabbit_backing_queue_spec.hrl +++ b/include/rabbit_backing_queue_spec.hrl @@ -66,3 +66,5 @@ (rabbit_types:basic_message(), state()) -> {'false'|'published'|'discarded', state()}). -spec(discard/3 :: (rabbit_types:basic_message(), pid(), state()) -> state()). +-spec(format_status/2 :: ('normal' | 'terminate', [[{any(), any()}] | state()]) + -> term()). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index e5038efe..fcb1f223 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -31,7 +31,8 @@ -export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2, format_message_queue/2]). + prioritise_cast/2, prioritise_info/2, format_message_queue/2, + format_status/2]). -export([init_with_backing_queue_state/7]). @@ -1212,3 +1213,8 @@ handle_pre_hibernate(State = #q{backing_queue = BQ, {hibernate, stop_rate_timer(State1)}. format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). + +format_status(Opt, [PDict, State = #q{backing_queue = BQ, + backing_queue_state = BQS}]) -> + [{data, [{"State", State#q{backing_queue_state = + BQ:format_status(Opt, [PDict, BQS])}}]}]. diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl index 77278416..aed733d0 100644 --- a/src/rabbit_backing_queue.erl +++ b/src/rabbit_backing_queue.erl @@ -165,7 +165,12 @@ behaviour_info(callbacks) -> %% reason. Note that this is may be invoked for messages for %% which BQ:is_duplicate/2 has already returned {'published' | %% 'discarded', BQS}. - {discard, 3} + {discard, 3}, + + %% As for format_status in gen_server, except it is not optional, + %% and the returned term should be the plain term and not wrapped + %% in [{data, [{"State", Term}]}]. + {format_status, 2} ]; behaviour_info(_Other) -> undefined. diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index ea72de66..611c752c 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -21,7 +21,7 @@ dropwhile/2, fetch/2, ack/2, requeue/3, len/1, is_empty/1, set_ram_duration_target/2, ram_duration/1, needs_timeout/1, timeout/1, handle_pre_hibernate/1, - status/1, invoke/3, is_duplicate/2, discard/3, + status/1, invoke/3, is_duplicate/2, discard/3, format_status/2, multiple_routing_keys/0]). -export([start/1, stop/0]). @@ -732,6 +732,9 @@ is_duplicate(_Msg, State) -> {false, State}. discard(_Msg, _ChPid, State) -> State. +format_status(_Opt, [_PDict, State]) -> + State. + %%---------------------------------------------------------------------------- %% Minor helpers %%---------------------------------------------------------------------------- -- cgit v1.2.1 From 73d77af03c6f18958f7e69747d1a21523345e382 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 22 Aug 2011 14:12:52 +0100 Subject: Elide actual message bodies whereever we come across them --- src/rabbit_variable_queue.erl | 39 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 37 insertions(+), 2 deletions(-) diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 611c752c..48d9ab0c 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -732,8 +732,26 @@ is_duplicate(_Msg, State) -> {false, State}. discard(_Msg, _ChPid, State) -> State. -format_status(_Opt, [_PDict, State]) -> - State. +format_status(_Opt, [_PDict, State = #vqstate { q1 = Q1, + q2 = Q2, + q3 = Q3, + q4 = Q4, + pending_ack = PA, + ram_ack_index = RAI, + msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC, + confirmed = C }]) -> + State #vqstate { q1 = format_queue(Q1), + q2 = format_bpqueue(Q2), + q3 = format_bpqueue(Q3), + q4 = format_queue(Q4), + pending_ack = format_pending_acks(PA), + ram_ack_index = gb_trees:to_list(RAI), + msgs_on_disk = gb_sets:to_list(MOD), + msg_indices_on_disk = gb_sets:to_list(MIOD), + unconfirmed = gb_sets:to_list(UC), + confirmed = gb_sets:to_list(C) }. %%---------------------------------------------------------------------------- %% Minor helpers @@ -783,6 +801,23 @@ gb_sets_maybe_insert(false, _Val, Set) -> Set; %% when requeueing, we re-add a msg_id to the unconfirmed set gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). +format_queue(Q) -> + [format_msg_status(MsgStatus) || MsgStatus <- queue:to_list(Q)]. + +format_bpqueue(Q) -> + beta_fold(fun (MsgStatus, Acc) -> [format_msg_status(MsgStatus) | Acc] end, + [], Q). + +format_pending_acks(PA) -> + dict:fold(fun (SeqId, {_IsPersistent, _MsgId, _MsgProps} = OnDisk, Acc) -> + [{SeqId, OnDisk} | Acc]; + (SeqId, MsgStatus = #msg_status {}, Acc) -> + [{SeqId, format_msg_status(MsgStatus)} | Acc] + end, [], PA). + +format_msg_status(MsgStatus = #msg_status { msg = undefined }) -> MsgStatus; +format_msg_status(MsgStatus) -> MsgStatus #msg_status { msg = '_' }. + msg_status(IsPersistent, SeqId, Msg = #basic_message { id = MsgId }, MsgProps) -> #msg_status { seq_id = SeqId, msg_id = MsgId, msg = Msg, -- cgit v1.2.1 From f685736904603ba89d5cc3aaa38682a4423de391 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Mon, 22 Aug 2011 14:35:20 +0100 Subject: Apparently we're not allowed to actually call this tuple vqstate. So we'll call it vqstate_formatted instead. --- src/rabbit_variable_queue.erl | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 48d9ab0c..bed76957 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -742,16 +742,19 @@ format_status(_Opt, [_PDict, State = #vqstate { q1 = Q1, msg_indices_on_disk = MIOD, unconfirmed = UC, confirmed = C }]) -> - State #vqstate { q1 = format_queue(Q1), - q2 = format_bpqueue(Q2), - q3 = format_bpqueue(Q3), - q4 = format_queue(Q4), - pending_ack = format_pending_acks(PA), - ram_ack_index = gb_trees:to_list(RAI), - msgs_on_disk = gb_sets:to_list(MOD), - msg_indices_on_disk = gb_sets:to_list(MIOD), - unconfirmed = gb_sets:to_list(UC), - confirmed = gb_sets:to_list(C) }. + State1 = setelement(1, State, vqstate_formatted), + lists:foldl( + fun ({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, + State1, [{#vqstate.q1, format_queue(Q1)}, + {#vqstate.q2, format_bpqueue(Q2)}, + {#vqstate.q3, format_bpqueue(Q3)}, + {#vqstate.q4, format_queue(Q4)}, + {#vqstate.pending_ack, format_pending_acks(PA)}, + {#vqstate.ram_ack_index, gb_trees:to_list(RAI)}, + {#vqstate.msgs_on_disk, gb_sets:to_list(MOD)}, + {#vqstate.msg_indices_on_disk, gb_sets:to_list(MIOD)}, + {#vqstate.unconfirmed, gb_sets:to_list(UC)}, + {#vqstate.confirmed, gb_sets:to_list(C)}]). %%---------------------------------------------------------------------------- %% Minor helpers -- cgit v1.2.1 From 5d2bce98d84e668e0fce79aa13b20896669a5e1a Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 23 Aug 2011 12:49:22 +0100 Subject: If we do it in vq, we should also do the same thing in amqqueue_process. Plus, if we've added it to BQ then we should implement it in _both_ implementations of BQ... --- src/rabbit_amqqueue_process.erl | 12 +++++++++--- src/rabbit_mirror_queue_master.erl | 16 +++++++++++++++- 2 files changed, 24 insertions(+), 4 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index fcb1f223..5b700d23 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1215,6 +1215,12 @@ handle_pre_hibernate(State = #q{backing_queue = BQ, format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). format_status(Opt, [PDict, State = #q{backing_queue = BQ, - backing_queue_state = BQS}]) -> - [{data, [{"State", State#q{backing_queue_state = - BQ:format_status(Opt, [PDict, BQS])}}]}]. + backing_queue_state = BQS, + msg_id_to_channel = MTC}]) -> + State1 = setelement(1, State, q_formatted), + State2 = lists:foldl( + fun({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, + State1, [{#q.backing_queue_state, + BQ:format_status(Opt, [PDict, BQS])}, + {#q.msg_id_to_channel, dict:to_list(MTC)}]), + [{data, [{"State", State2}]}]. diff --git a/src/rabbit_mirror_queue_master.erl b/src/rabbit_mirror_queue_master.erl index ad5fd28f..ad237f63 100644 --- a/src/rabbit_mirror_queue_master.erl +++ b/src/rabbit_mirror_queue_master.erl @@ -21,7 +21,7 @@ requeue/3, len/1, is_empty/1, drain_confirmed/1, dropwhile/2, set_ram_duration_target/2, ram_duration/1, needs_timeout/1, timeout/1, handle_pre_hibernate/1, - status/1, invoke/3, is_duplicate/2, discard/3]). + status/1, invoke/3, is_duplicate/2, discard/3, format_status/2]). -export([start/1, stop/0]). @@ -347,6 +347,20 @@ discard(Msg = #basic_message { id = MsgId }, ChPid, State end. +format_status(Opt, [PDict, State = #state { backing_queue = BQ, + backing_queue_state = BQS, + seen_status = SS, + ack_msg_id = AM, + known_senders = KS }]) -> + State1 = setelement(1, State, state_formatted), + lists:foldl( + fun ({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, + State1, [{#state.backing_queue_state, + BQ:format_status(Opt, [PDict, BQS])}, + {#state.seen_status, dict:to_list(SS)}, + {#state.ack_msg_id, dict:to_list(AM)}, + {#state.known_senders, sets:to_list(KS)}]). + %% --------------------------------------------------------------------------- %% Other exported functions %% --------------------------------------------------------------------------- -- cgit v1.2.1 From 5e6d4993aa183af0ab8aaa2f2eda46e87758ada3 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 23 Aug 2011 13:48:08 +0100 Subject: Format status on slaves too. Note in sender queue we take a different approach from in VQ - in VQ we have the msg_status wrapper, which contains the msg_id. In slave and sender_queues, we don't, so we mask out the content in the basic_message rather than the whole of the basic_message --- src/rabbit_mirror_queue_slave.erl | 33 ++++++++++++++++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-) diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index 3c453981..3a2e215e 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -37,7 +37,8 @@ -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3, handle_pre_hibernate/1, prioritise_call/3, - prioritise_cast/2, prioritise_info/2]). + prioritise_cast/2, prioritise_info/2, format_message_queue/2, + format_status/2]). -export([joined/2, members_changed/3, handle_msg/3]). @@ -304,6 +305,26 @@ prioritise_info(Msg, _State) -> _ -> 0 end. +format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). + +format_status(Opt, [PDict, State = #state { backing_queue = BQ, + backing_queue_state = BQS, + sender_queues = SQ, + msg_id_ack = MA, + msg_id_status = MS, + known_senders = KS }]) -> + State1 = setelement(1, State, state_formatted), + State2 = lists:foldl( + fun({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, + State1, [{#state.backing_queue_state, + BQ:format_status(Opt, [PDict, BQS])}, + {#state.sender_queues, format_sender_queues(SQ)} | + [{Pos, dict:to_list(Dict)} || + {Pos, Dict} <- [{#state.msg_id_ack, MA}, + {#state.msg_id_status, MS}, + {#state.known_senders, KS}]]]), + [{data, [{"State", State2}]}]. + %% --------------------------------------------------------------------------- %% GM %% --------------------------------------------------------------------------- @@ -905,3 +926,13 @@ set_synchronised(true, State) -> State; set_synchronised(false, State = #state { synchronised = false }) -> State. + +format_sender_queues(SQ) -> + [{ChPid, {format_sender_queue(MQ), sets:to_list(PendingCh)}} + || {ChPid, {MQ, PendingCh}} <- dict:to_list(SQ)]. + +format_sender_queue(MQ) -> + [{Delivery #delivery { message = Msg #basic_message { content = '_' } }, + EnqueueOnPromotion} + || {Delivery = #delivery { message = Msg }, EnqueueOnPromotion} + <- queue:to_list(MQ)]. -- cgit v1.2.1 From 899d6608e89e07f03e784b37e5ac7b69fd82b74d Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 23 Aug 2011 13:59:45 +0100 Subject: Neater - avoid irritating sleep --- src/gen_server2_tests.erl | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/src/gen_server2_tests.erl b/src/gen_server2_tests.erl index 56cc1aa8..e051cef8 100644 --- a/src/gen_server2_tests.erl +++ b/src/gen_server2_tests.erl @@ -27,10 +27,10 @@ init([]) -> {ok, queue:new()}. -handle_call(pause, From, Q) -> +handle_call(await_go, From, Q) -> gen_server2:reply(From, ok), - timer:sleep(1000), - {noreply, queue:in({call, pause}, Q)}; + receive go -> ok end, + {noreply, queue:in({call, await_go}, Q)}; handle_call(stop, _From, Q) -> Q1 = queue:in({call, stop}, Q), {stop, normal, queue:to_list(Q1), Q1}; @@ -49,26 +49,27 @@ terminate(_Reason, _Q) -> code_change(_OldVsn, State, _Extra) -> {ok, State}. -prioritise_call(pause, _From, _State) -> {infinity, infinity}; -prioritise_call(stop, _From, _State) -> {0, 0}; -prioritise_call({W, P}, _From, _State) -> {W, P}; -prioritise_call(P, _From, _State) -> P. +prioritise_call(await_go, _From, _State) -> {infinity, infinity}; +prioritise_call(stop, _From, _State) -> {0, 0}; +prioritise_call({W, P}, _From, _State) -> {W, P}; +prioritise_call(P, _From, _State) -> P. -prioritise_cast({W, P}, _State) -> {W, P}; -prioritise_cast(P, _State) -> P. +prioritise_cast({W, P}, _State) -> {W, P}; +prioritise_cast(P, _State) -> P. -prioritise_info({W, P}, _State) -> {W, P}; -prioritise_info(P, _State) -> P. +prioritise_info({W, P}, _State) -> {W, P}; +prioritise_info(P, _State) -> P. test() -> {ok, Pid} = gen_server2:start_link(?MODULE, [], []), unlink(Pid), - ok = gen_server2:pcall(Pid, pause, infinity), + ok = gen_server2:pcall(Pid, await_go, infinity), [gen_server2:pcast(Pid, {W, P}) || W <- [infinity | lists:seq(0, 10)], P <- [infinity | lists:seq(0, 10)]], + Pid ! go, Order = gen_server2:pcall(Pid, stop, infinity), - Order = [{call, pause} | + Order = [{call, await_go} | [{cast, {W, P}} || P <- [infinity | lists:seq(10, 0, -1)], W <- [infinity | lists:seq(0, 10)]] ++ -- cgit v1.2.1 From fdad36c8349158dfcefc8d4bfb33f9c15f8a5c07 Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Thu, 1 Sep 2011 03:16:37 +0100 Subject: Move the implementation of credit into the queue. This avoids some cross-process traffic (but not much; only for consumers that run out of credit). This also assumes a single 'basic.credit' method which is used to signal asserted and reported credit state from and to the client. Needs refactoring, amqqueue_process is almost unreadable now. --- src/rabbit_amqqueue.erl | 9 +- src/rabbit_amqqueue_process.erl | 237 ++++++++++++++++++++++++++++++++++------ src/rabbit_channel.erl | 56 +++++----- src/rabbit_limiter.erl | 137 +++++------------------ 4 files changed, 264 insertions(+), 175 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 5bd42d9a..1cc2bc19 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -24,7 +24,7 @@ -export([list/0, list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). -export([force_event_refresh/0]). -export([consumers/1, consumers_all/1, consumer_info_keys/0]). --export([basic_get/3, basic_consume/7, basic_cancel/4]). +-export([basic_get/3, basic_consume/7, basic_cancel/4, set_credit/6]). -export([notify_sent/2, unblock/2, flush_all/2]). -export([notify_down_all/2, limit_all/3]). -export([on_node_down/1]). @@ -129,6 +129,10 @@ -> rabbit_types:ok_or_error('exclusive_consume_unavailable')). -spec(basic_cancel/4 :: (rabbit_types:amqqueue(), pid(), rabbit_types:ctag(), any()) -> 'ok'). +-spec(set_credit/6 :: + (rabbit_types:amqqueue(), rabbit_types:ctag(), non_neg_integer(), + non_neg_integer() | 'unlimited', boolean(), pid() | 'undefined') -> + 'ok'). -spec(notify_sent/2 :: (pid(), pid()) -> 'ok'). -spec(unblock/2 :: (pid(), pid()) -> 'ok'). -spec(flush_all/2 :: ([pid()], pid()) -> 'ok'). @@ -445,6 +449,9 @@ limit_all(QPids, ChPid, Limiter) -> delegate:invoke_no_result( QPids, fun (QPid) -> gen_server2:cast(QPid, {limit, ChPid, Limiter}) end). +set_credit(#amqqueue{pid = QPid}, CTag, Credit, Count, Drain, EchoTo) -> + delegate_cast(QPid, {set_credit, CTag, Credit, Count, Drain, EchoTo}). + basic_get(#amqqueue{pid = QPid}, ChPid, NoAck) -> delegate_call(QPid, {basic_get, ChPid, NoAck}). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 8333b753..c728e437 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -35,6 +35,20 @@ -export([init_with_backing_queue_state/7]). +-import(rabbit_misc, [serial_add/2, serial_diff/2]). + +%% We need queue-like active consumers, but random access for +%% updating credit. This introduces an additional lookup step. + +%% - update credit (channel has to know how to access queue) +%% - check credit on consumer when +%% - remove ctag version of procedures from limiter + +%% In general the only invariant we maintain is that the blocked +%% consumer queue will contain only blocked consumers; the active +%% queue may also contain blocked consumers, which will be moved the +%% next time a delivery is attempted. + %% Queue's state -record(q, {q, exclusive_consumer, @@ -43,6 +57,7 @@ backing_queue_state, active_consumers, blocked_consumers, + credit_map, expires, sync_timer_ref, rate_timer_ref, @@ -55,6 +70,8 @@ -record(consumer, {tag, ack_required}). +-record(credit, {count = 0, credit = 0, drain = false}). + %% These are held in our process dictionary -record(cr, {consumer_count, ch_pid, @@ -110,6 +127,7 @@ init(Q) -> backing_queue_state = undefined, active_consumers = queue:new(), blocked_consumers = queue:new(), + credit_map = orddict:new(), expires = undefined, sync_timer_ref = undefined, rate_timer_ref = undefined, @@ -136,6 +154,7 @@ init_with_backing_queue_state(Q = #amqqueue{exclusive_owner = Owner}, BQ, BQS, backing_queue_state = BQS, active_consumers = queue:new(), blocked_consumers = queue:new(), + credit_map = orddict:new(), expires = undefined, sync_timer_ref = undefined, rate_timer_ref = RateTRef, @@ -366,10 +385,108 @@ ch_record_state_transition(OldCR, NewCR) -> {_, _} -> ok end. +consumer_credit(CTag, Map) -> + case orddict:find(CTag, Map) of + error -> + unlimited; + {ok, CreditRec} -> + CreditRec + end. + +erase_credit(CTag, Map) -> + orddict:erase(CTag, Map). + +%% NB assumes nothing can become unlimited +store_credit(_, unlimited, Map) -> + Map; +store_credit(CTag, CreditRec, Map) -> + orddict:store(CTag, CreditRec, Map). + +credit_left(#credit{ credit = 0 }) -> + false; +credit_left(_) -> + true. + +in_drain_mode(#credit{ drain = true }) -> + true; +in_drain_mode(_) -> + false. + +decr_credit(unlimited, _) -> + unlimited; +decr_credit(#credit{ credit = Credit, count = Count, drain = Drain }, Available) -> + {NewCredit, NewCount} = + case {Credit, Available, Drain} of + {1, _, _} -> {0, serial_add(Count, 1)}; + {_, 1, true} -> + %% Drain, and just the message we're about to send + %% left, so advance til credit = 0 + NewCount0 = serial_add(Count, Credit), + {0, NewCount0}; + {_, _, _} -> {Credit - 1, serial_add(Count, 1)} + end, + #credit{ credit = NewCredit, count = NewCount, drain = Drain }. + +%% Assert the credit state. The count may not match ours, in which +%% case we must rebase the credit. +%% TODO Edge case: if the queue has nothing in it, and drain is set, +%% we want to send a basic.credit back. +reset_credit(CTag, Credit0, Count0, Drain, EchoTo, + State = #q{credit_map = CreditMap, + active_consumers = Active, + blocked_consumers = Blocked, + backing_queue = BQ, + backing_queue_state = BQS}) -> + CreditRec = consumer_credit(CTag, CreditMap), + {NewMap, NewRec} = + case {CreditRec, Credit0} of + {#credit{count = LocalCount}, _} -> + %% Our credit may have been reduced while + %% messages are in flight, so we bottom out at 0. + Credit = erlang:max(0, serial_diff( + serial_add(Count0, Credit0), + LocalCount)), + NC = #credit{count = LocalCount, + credit = Credit, + drain = Drain}, + {store_credit(CTag, NC, CreditMap), NC}; + {unlimited, Credit0} -> + NC = #credit{count = Count0, + credit = Credit0, + drain = Drain}, + {store_credit(CTag, NC, CreditMap), NC} + end, + {NewActive, NewBlocked} = + case {credit_left(CreditRec), credit_left(NewRec)} of + {false, true} -> + %% We may have put this consumer on the blocked queue. Try + %% to move it back. + case split_consumer(CTag, Blocked) of + {none, Blocked} -> + {Active, Blocked}; + {Consumer, Blocked1} -> + {queue:in(Consumer, Active), Blocked1} + end; + {_, _} -> + {Active, Blocked} + end, + case EchoTo of + undefined -> + ok; + ChPid -> + Available = BQ:len(BQS), + #credit{ count = Count1, credit = Credit1, drain = Drain1} = NewRec, + rabbit_channel:send_credit(ChPid, CTag, Count1, Credit1, Available, Drain1) + end, + run_message_queue(State#q{credit_map = NewMap, + active_consumers = NewActive, + blocked_consumers = NewBlocked}). + deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, State = #q{q = #amqqueue{name = QName}, active_consumers = ActiveConsumers, blocked_consumers = BlockedConsumers, + credit_map = CreditMap, backing_queue = BQ, backing_queue_state = BQS}) -> case queue:out(ActiveConsumers) of @@ -380,10 +497,10 @@ deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, unsent_message_count = Count, acktags = ChAckTags} = ch_record(ChPid), IsMsgReady = PredFun(FunAcc, State), + Credit = consumer_credit(ConsumerTag, CreditMap), case (IsMsgReady andalso - rabbit_limiter:can_send(Limiter, self(), - AckRequired, ConsumerTag, - BQ:len(BQS))) of + credit_left(Credit) andalso + rabbit_limiter:can_send(Limiter, self(), AckRequired)) of true -> {{Message, IsDelivered, AckTag}, FunAcc1, State1} = DeliverFun(AckRequired, FunAcc, State), @@ -398,28 +515,58 @@ deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, NewC = C#cr{unsent_message_count = Count + 1, acktags = ChAckTags1}, true = maybe_store_ch_record(NewC), + Available = BQ:len(BQS), + NewCreditRec = decr_credit(Credit, Available), + case in_drain_mode(NewCreditRec) andalso + not credit_left(NewCreditRec) of + true -> + #credit{ count = NewCount } = NewCreditRec, + rabbit_channel:send_credit( + ChPid, ConsumerTag, NewCount, + 0, Available - 1, true); + _ -> ok + end, {NewActiveConsumers, NewBlockedConsumers} = case ch_record_state_transition(C, NewC) of - ok -> {queue:in(QEntry, ActiveConsumersTail), - BlockedConsumers}; - block -> {ActiveConsumers1, BlockedConsumers1} = - move_consumers(ChPid, - ActiveConsumersTail, - BlockedConsumers), - {ActiveConsumers1, - queue:in(QEntry, BlockedConsumers1)} + ok -> + case credit_left(NewCreditRec) of + true -> + {queue:in(QEntry, ActiveConsumersTail), + BlockedConsumers}; + false -> + {ActiveConsumersTail, + queue:in(QEntry, BlockedConsumers)} + end; + block -> + {ActiveConsumers1, BlockedConsumers1} = + move_consumers(ChPid, + ActiveConsumersTail, + BlockedConsumers), + {ActiveConsumers1, + queue:in(QEntry, BlockedConsumers1)} end, State2 = State1#q{ active_consumers = NewActiveConsumers, - blocked_consumers = NewBlockedConsumers}, + blocked_consumers = NewBlockedConsumers, + credit_map = store_credit(ConsumerTag, + NewCreditRec, + CreditMap)}, deliver_msgs_to_consumers(Funs, FunAcc1, State2); - %% if IsMsgReady then we've hit the limiter + %% IsMsgReady then we've hit the limiter or there's no + %% credit false when IsMsgReady -> - true = maybe_store_ch_record(C#cr{is_limit_active = true}), {NewActiveConsumers, NewBlockedConsumers} = - move_consumers(ChPid, - ActiveConsumers, - BlockedConsumers), + case credit_left(Credit) of + true -> + true = maybe_store_ch_record( + C#cr{is_limit_active = true}), + move_consumers(ChPid, + ActiveConsumers, + BlockedConsumers); + false -> + {ActiveConsumersTail, + queue:in(QEntry, BlockedConsumers)} + end, deliver_msgs_to_consumers( Funs, FunAcc, State#q{active_consumers = NewActiveConsumers, @@ -570,18 +717,32 @@ fetch(AckRequired, State = #q{backing_queue_state = BQS, {Result, BQS1} = BQ:fetch(AckRequired, BQS), {Result, State#q{backing_queue_state = BQS1}}. -add_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). +with_consumer(ChPid, Consumer, Queue) -> queue:in({ChPid, Consumer}, Queue). -remove_consumer(ChPid, ConsumerTag, Queue) -> +without_consumer(ChPid, ConsumerTag, Queue) -> queue:filter(fun ({CP, #consumer{tag = CT}}) -> (CP /= ChPid) or (CT /= ConsumerTag) end, Queue). -remove_consumers(ChPid, Queue) -> +split_consumer(ConsumerTag, Queue) -> + {MaybeConsumer, Remainder} = + lists:partition(fun({_Ch, #consumer{tag = CT}}) -> + CT == ConsumerTag + end, queue:to_list(Queue)), + case MaybeConsumer of + [] -> + {none, Queue}; + [Consumer] -> + {Consumer, queue:from_list(Remainder)} + end. + +remove_consumers(ChPid, Queue, CreditMap) -> {Kept, Removed} = split_by_channel(ChPid, Queue), - [emit_consumer_deleted(Ch, CTag) || - {Ch, #consumer{tag = CTag}} <- queue:to_list(Removed)], - Kept. + NewCreditMap = lists:foldl(fun({Ch, #consumer{tag = CTag}}, Map) -> + emit_consumer_deleted(Ch, CTag), + erase_credit(CTag, Map) + end, CreditMap, queue:to_list(Removed)), + {Kept, NewCreditMap}. move_consumers(ChPid, From, To) -> {Kept, Removed} = split_by_channel(ChPid, From), @@ -615,21 +776,25 @@ should_auto_delete(#q{q = #amqqueue{auto_delete = false}}) -> false; should_auto_delete(#q{has_had_consumers = false}) -> false; should_auto_delete(State) -> is_unused(State). -handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder}) -> +handle_ch_down(DownPid, State = #q{exclusive_consumer = Holder, + credit_map = CreditMap }) -> case lookup_ch(DownPid) of not_found -> {ok, State}; C = #cr{ch_pid = ChPid, acktags = ChAckTags} -> ok = erase_ch_record(C), + {ActiveConsumers, CreditMap1} = + remove_consumers(ChPid, State#q.active_consumers, CreditMap), + {BlockedConsumers, CreditMap2} = + remove_consumers(ChPid, State#q.blocked_consumers, CreditMap1), State1 = State#q{ exclusive_consumer = case Holder of {ChPid, _} -> none; Other -> Other end, - active_consumers = remove_consumers( - ChPid, State#q.active_consumers), - blocked_consumers = remove_consumers( - ChPid, State#q.blocked_consumers)}, + active_consumers = ActiveConsumers, + blocked_consumers = BlockedConsumers, + credit_map = CreditMap2}, case should_auto_delete(State1) of true -> {stop, State1}; false -> {ok, requeue_and_run(sets:to_list(ChAckTags), @@ -974,12 +1139,12 @@ handle_call({basic_consume, NoAck, ChPid, Limiter, case is_ch_blocked(C) of true -> State1#q{ blocked_consumers = - add_consumer(ChPid, Consumer, + with_consumer(ChPid, Consumer, State1#q.blocked_consumers)}; false -> run_message_queue( State1#q{ active_consumers = - add_consumer(ChPid, Consumer, + with_consumer(ChPid, Consumer, State1#q.active_consumers)}) end, emit_consumer_created(ChPid, ConsumerTag, ExclusiveConsume, @@ -988,7 +1153,7 @@ handle_call({basic_consume, NoAck, ChPid, Limiter, end; handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, - State = #q{exclusive_consumer = Holder}) -> + State = #q{exclusive_consumer = Holder, credit_map = CreditMap }) -> case lookup_ch(ChPid) of not_found -> ok = maybe_send_reply(ChPid, OkMsg), @@ -1008,12 +1173,13 @@ handle_call({basic_cancel, ChPid, ConsumerTag, OkMsg}, _From, State#q{exclusive_consumer = cancel_holder(ChPid, ConsumerTag, Holder), - active_consumers = remove_consumer( + active_consumers = without_consumer( ChPid, ConsumerTag, State#q.active_consumers), - blocked_consumers = remove_consumer( + blocked_consumers = without_consumer( ChPid, ConsumerTag, - State#q.blocked_consumers)}, + State#q.blocked_consumers), + credit_map = erase_credit(ConsumerTag, CreditMap)}, case should_auto_delete(NewState) of false -> reply(ok, ensure_expiry_timer(NewState)); true -> {stop, normal, ok, NewState} @@ -1122,6 +1288,9 @@ handle_cast({limit, ChPid, Limiter}, State) -> C#cr{limiter = Limiter, is_limit_active = Limited} end)); +handle_cast({set_credit, CTag, Credit, Count, Drain, EchoTo}, State) -> + noreply(reset_credit(CTag, Credit, Count, Drain, EchoTo, State)); + handle_cast({flush, ChPid}, State) -> ok = rabbit_channel:flushed(ChPid, self()), noreply(State); diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index f1e83d54..f01f7125 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -21,7 +21,7 @@ -behaviour(gen_server2). -export([start_link/10, do/2, do/3, flush/1, shutdown/1]). --export([send_command/2, deliver/4, flushed/2, confirm/2]). +-export([send_command/2, deliver/4, send_credit/6, flushed/2, confirm/2]). -export([list/0, info_keys/0, info/1, info/2, info_all/0, info_all/1]). -export([refresh_config_local/0, ready_for_close/1]). -export([force_event_refresh/0]). @@ -131,6 +131,9 @@ flushed(Pid, QPid) -> confirm(Pid, MsgSeqNos) -> gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). +send_credit(Pid, CTag, Count, Credit, Available, Drain) -> + gen_server2:cast(Pid, {send_credit, CTag, Count, Credit, Available, Drain}). + list() -> rabbit_misc:append_rpc_all_nodes(rabbit_mnesia:running_clustered_nodes(), rabbit_channel, list_local, []). @@ -307,6 +310,16 @@ handle_cast({deliver, ConsumerTag, AckRequired, rabbit_trace:tap_trace_out(Msg, TraceState), noreply(State1#ch{next_tag = DeliveryTag + 1}); +handle_cast({send_credit, CTag, Count, Credit, Available, Drain}, + State = #ch{writer_pid = WriterPid}) -> + ok = rabbit_writer:send_command( + WriterPid, #'basic.credit'{consumer_tag = CTag, + count = Count, + credit = Credit, + available = Available, + drain = Drain, + echo = false}), + noreply(State); handle_cast(force_event_refresh, State) -> rabbit_event:notify(channel_created, infos(?CREATION_EVENT_KEYS, State)), @@ -1117,33 +1130,20 @@ handle_method(#'channel.flow'{active = false}, _, handle_method(#'basic.credit'{consumer_tag = CTag, credit = Credit, count = Count, - drain = Drain}, _, - State = #ch{limiter = Limiter, - consumer_mapping = Consumers}) -> - %% We get Available first because it's likely that as soon as we set - %% the credit msgs will get consumed and it'll be out of date. Why do we - %% want that? Because at least then it's consistent with the credit value - %% we return. And Available is always going to be racy. - Available = case dict:find(CTag, Consumers) of - {ok, {Q, _}} -> case rabbit_amqqueue:stat(Q) of - {ok, Len, _} -> Len; - _ -> -1 - end; - error -> -1 %% TODO these -1s smell very iffy! - end, - Limiter1 = case rabbit_limiter:is_enabled(Limiter) of - true -> Limiter; - false -> enable_limiter(State) - end, - Limiter3 = - case rabbit_limiter:set_credit( - Limiter1, CTag, Credit, Count, Drain) of - ok -> Limiter1; - {disabled, Limiter2} -> ok = limit_queues(Limiter2, State), - Limiter2 - end, - State1 = State#ch{limiter = Limiter3}, - return_ok(State1, false, #'basic.credit_ok'{available = Available}); + drain = Drain, + echo = Echo}, _, + State = #ch{consumer_mapping = Consumers}) -> + case dict:find(CTag, Consumers) of + {ok, {Q, _}} -> + ok = rabbit_amqqueue:set_credit(Q, CTag, Credit, Count, + Drain, if Echo -> self(); + true -> undefined + end), + ok; + error -> + ok + end, + {noreply, State}; handle_method(_MethodRecord, _Content, _State) -> rabbit_misc:protocol_error( diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index f102c3b9..86c2d9ea 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -21,14 +21,10 @@ -export([init/1, terminate/2, code_change/3, handle_call/3, handle_cast/2, handle_info/2, prioritise_call/3]). - -export([start_link/0, make_token/0, make_token/1, is_enabled/1, enable/2, disable/1]). --export([limit/2, can_send/5, ack/2, register/2, unregister/2]). +-export([limit/2, can_send/3, ack/2, register/2, unregister/2]). -export([get_limit/1, block/1, unblock/1, is_blocked/1]). --export([set_credit/5]). - --import(rabbit_misc, [serial_add/2, serial_diff/2]). %%---------------------------------------------------------------------------- @@ -47,8 +43,7 @@ -spec(enable/2 :: (token(), non_neg_integer()) -> token()). -spec(disable/1 :: (token()) -> token()). -spec(limit/2 :: (token(), non_neg_integer()) -> 'ok' | {'disabled', token()}). --spec(can_send/5 :: (token(), pid(), boolean(), - rabbit_types:ctag(), non_neg_integer()) -> boolean()). +-spec(can_send/3 :: (token(), pid(), boolean()) -> boolean()). -spec(ack/2 :: (token(), non_neg_integer()) -> 'ok'). -spec(register/2 :: (token(), pid()) -> 'ok'). -spec(unregister/2 :: (token(), pid()) -> 'ok'). @@ -56,9 +51,6 @@ -spec(block/1 :: (token()) -> 'ok'). -spec(unblock/1 :: (token()) -> 'ok' | {'disabled', token()}). -spec(is_blocked/1 :: (token()) -> boolean()). --spec(set_credit/5 :: (token(), rabbit_types:ctag(), - non_neg_integer(), - non_neg_integer(), boolean()) -> 'ok'). -endif. @@ -67,12 +59,9 @@ -record(lim, {prefetch_count = 0, ch_pid, blocked = false, - credits = dict:new(), queues = orddict:new(), % QPid -> {MonitorRef, Notify} volume = 0}). --record(credit, {count = 0, credit = 0, drain = false}). - %%---------------------------------------------------------------------------- %% API %%---------------------------------------------------------------------------- @@ -97,19 +86,18 @@ limit(Limiter, PrefetchCount) -> %% breaching a limit. Note that we don't use maybe_call here in order %% to avoid always going through with_exit_handler/2, even when the %% limiter is disabled. -can_send(#token{pid = Pid, enabled = true}, QPid, AckRequired, CTag, Len) -> +can_send(#token{pid = Pid, enabled = true}, QPid, AckRequired) -> rabbit_misc:with_exit_handler( fun () -> true end, fun () -> - gen_server2:call(Pid, {can_send, QPid, AckRequired, CTag, Len}, - infinity) + gen_server2:call(Pid, {can_send, QPid, AckRequired}, infinity) end); -can_send(_, _, _, _, _) -> +can_send(_, _, _) -> true. %% Let the limiter know that the channel has received some acks from a %% consumer -ack(Limiter, CTag) -> maybe_cast(Limiter, {ack, CTag}). +ack(Limiter, Count) -> maybe_cast(Limiter, {ack, Count}). register(Limiter, QPid) -> maybe_cast(Limiter, {register, QPid}). @@ -126,9 +114,6 @@ block(Limiter) -> unblock(Limiter) -> maybe_call(Limiter, {unblock, Limiter}, ok). -set_credit(Limiter, CTag, Credit, Count, Drain) -> - maybe_call(Limiter, {set_credit, CTag, Credit, Count, Drain, Limiter}, ok). - is_blocked(Limiter) -> maybe_call(Limiter, is_blocked, false). @@ -142,26 +127,23 @@ init([]) -> prioritise_call(get_limit, _From, _State) -> 9; prioritise_call(_Msg, _From, _State) -> 0. -handle_call({can_send, QPid, _AckRequired, _CTag, _Len}, _From, +handle_call({can_send, QPid, _AckRequired}, _From, State = #lim{blocked = true}) -> {reply, false, limit_queue(QPid, State)}; -handle_call({can_send, QPid, AckRequired, CTag, Len}, _From, +handle_call({can_send, QPid, AckRequired}, _From, State = #lim{volume = Volume}) -> - case limit_reached(CTag, State) of + case limit_reached(State) of true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, - decr_credit(CTag, Len, - State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end})} + false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; + true -> Volume + end}} end; handle_call(get_limit, _From, State = #lim{prefetch_count = PrefetchCount}) -> {reply, PrefetchCount, State}; handle_call({limit, PrefetchCount, Token}, _From, State) -> - case maybe_notify(irrelevant, - State, State#lim{prefetch_count = PrefetchCount}) of + case maybe_notify(State, State#lim{prefetch_count = PrefetchCount}) of {cont, State1} -> {reply, ok, State1}; {stop, State1} -> @@ -171,17 +153,8 @@ handle_call({limit, PrefetchCount, Token}, _From, State) -> handle_call(block, _From, State) -> {reply, ok, State#lim{blocked = true}}; -handle_call({set_credit, CTag, Credit, Count, Drain, Token}, _From, State) -> - case maybe_notify(CTag, State, - reset_credit(CTag, Credit, Count, Drain, State)) of - {cont, State1} -> - {reply, ok, State1}; - {stop, State1} -> - {reply, {disabled, Token#token{enabled = false}}, State1} - end; - handle_call({unblock, Token}, _From, State) -> - case maybe_notify(irrelevant, State, State#lim{blocked = false}) of + case maybe_notify(State, State#lim{blocked = false}) of {cont, State1} -> {reply, ok, State1}; {stop, State1} -> @@ -197,11 +170,11 @@ handle_call({enable, Token, Channel, Volume}, _From, State) -> handle_call({disable, Token}, _From, State) -> {reply, Token#token{enabled = false}, State}. -handle_cast({ack, CTag}, State = #lim{volume = Volume}) -> +handle_cast({ack, Count}, State = #lim{volume = Volume}) -> NewVolume = if Volume == 0 -> 0; - true -> Volume - 1 + true -> Volume - Count end, - {cont, State1} = maybe_notify(CTag, State, State#lim{volume = NewVolume}), + {cont, State1} = maybe_notify(State, State#lim{volume = NewVolume}), {noreply, State1}; handle_cast({register, QPid}, State) -> @@ -223,14 +196,13 @@ code_change(_, State, _) -> %% Internal plumbing %%---------------------------------------------------------------------------- -maybe_notify(CTag, OldState, NewState) -> - case (limit_reached(CTag, OldState) orelse blocked(OldState)) andalso - not (limit_reached(CTag, NewState) orelse blocked(NewState)) of +maybe_notify(OldState, NewState) -> + case (limit_reached(OldState) orelse blocked(OldState)) andalso + not (limit_reached(NewState) orelse blocked(NewState)) of true -> NewState1 = notify_queues(NewState), - {case {NewState1#lim.prefetch_count, - dict:size(NewState1#lim.credits)} of - {0, 0} -> stop; - _ -> cont + {case NewState1#lim.prefetch_count of + 0 -> stop; + _ -> cont end, NewState1}; false -> {cont, NewState} end. @@ -245,67 +217,8 @@ maybe_cast(#token{pid = Pid, enabled = true}, Cast) -> maybe_cast(_, _Call) -> ok. -limit_reached(irrelevant, _) -> - false; -limit_reached(CTag, #lim{prefetch_count = Limit, volume = Volume, - credits = Credits}) -> - case dict:find(CTag, Credits) of - {ok, #credit{ credit = 0 }} -> true; - _ -> false - end orelse (Limit =/= 0 andalso Volume >= Limit). - -decr_credit(CTag, Len, State = #lim{ credits = Credits, - ch_pid = ChPid } ) -> - case dict:find(CTag, Credits) of - {ok, #credit{ credit = Credit, count = Count, drain = Drain }} -> - {NewCredit, NewCount} = - case {Credit, Len, Drain} of - {1, _, _} -> {0, serial_add(Count, 1)}; - {_, 1, true} -> - %% Drain, so advance til credit = 0 - NewCount0 = serial_add(Count, (Credit - 1)), - send_drained(ChPid, CTag, NewCount0), - {0, NewCount0}; %% Magic reduction to 0 - {_, _, _} -> {Credit - 1, serial_add(Count, 1)} - end, - update_credit(CTag, NewCredit, NewCount, Drain, State); - error -> - State - end. - -send_drained(ChPid, CTag, Count) -> - rabbit_channel:send_command(ChPid, - #'basic.credit_state'{consumer_tag = CTag, - credit = 0, - count = Count, - available = 0, - drain = true}). - -%% Assert the credit state. The count may not match ours, in which -%% case we must rebase the credit. -%% TODO Edge case: if the queue has nothing in it, and drain is set, -%% we want to send a basic.credit back. -reset_credit(CTag, Credit0, Count0, Drain, State = #lim{credits = Credits}) -> - Count = - case dict:find(CTag, Credits) of - {ok, #credit{ count = LocalCount }} -> - LocalCount; - _ -> Count0 - end, - %% Our credit may have been reduced while messages are in flight, - %% so we bottom out at 0. - Credit = erlang:max(0, serial_diff(serial_add(Count0, Credit0), Count)), - update_credit(CTag, Credit, Count, Drain, State). - -%% Store the credit -update_credit(CTag, -1, _Count, _Drain, State = #lim{credits = Credits}) -> - State#lim{credits = dict:erase(CTag, Credits)}; - -update_credit(CTag, Credit, Count, Drain, State = #lim{credits = Credits}) -> - State#lim{credits = dict:store(CTag, - #credit{credit = Credit, - count = Count, - drain = Drain}, Credits)}. +limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> + Limit =/= 0 andalso Volume >= Limit. blocked(#lim{blocked = Blocked}) -> Blocked. -- cgit v1.2.1 From dbf541ae5d31cf376942417aab9d1d5ac3a1e421 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 5 Sep 2011 09:32:57 +0100 Subject: re-add the original changes --- src/rabbit_control.erl | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 1163ae9d..d920ca31 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -17,7 +17,7 @@ -module(rabbit_control). -include("rabbit.hrl"). --export([start/0, stop/0, action/5, diagnostics/1]). +-export([start/0, stop/0, action/5, diagnostics/1, log_action/3]). -define(RPC_TIMEOUT, infinity). @@ -50,6 +50,7 @@ -> 'ok'). -spec(diagnostics/1 :: (node()) -> [{string(), [any()]}]). -spec(usage/0 :: () -> no_return()). +-spec(log_action/3 :: (node(), string(), [term()]) -> ok). -endif. @@ -72,6 +73,7 @@ start() -> Command = list_to_atom(Command0), Quiet = proplists:get_bool(?QUIET_OPT, Opts1), Node = proplists:get_value(?NODE_OPT, Opts1), + rpc_call(Node, rabbit_control, log_action, [node(), Command0, Args]), Inform = case Quiet of true -> fun (_Format, _Args1) -> ok end; false -> fun (Format, Args1) -> @@ -513,3 +515,22 @@ quit(Status) -> {unix, _} -> halt(Status); {win32, _} -> init:stop(Status) end. + +log_action(Node, Command, Args) -> + rabbit_misc:with_local_io( + fun () -> + error_logger:info_msg("~p executing~n rabbitmqctl ~s ~s~n", + [Node, Command, + format_args(mask_args(Command, Args))]) + end). + +%% Mask passwords and other sensitive info before logging. +mask_args("add_user", [Name, _Password | Args]) -> + [Name, "****" | Args]; +mask_args("change_password", [Name, _Password | Args]) -> + [Name, "****" | Args]; +mask_args(_, Args) -> + Args. + +format_args(Args) -> + string:join([io_lib:format("~p", [A]) || A <- Args], " "). -- cgit v1.2.1 From d545f157036c3d1d45f24381fa721819123fc0f2 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 5 Sep 2011 10:01:06 +0100 Subject: refactor + don't present rabbitmqctl logs as command lines % rabbitmqctl -n rabbit@localhost change_password guest guest =INFO REPORT==== 5-Sep-2011::09:47:56 === rabbitmqctl7862@localhost executing change_password Options: [{"-p","/"},{"-n","rabbit@localhost"},{"-q",false}] Arguments: ["guest","****"] The downside is that we now log the default options as well (e.g. the -p above). So, the logs show what the user actually executed, rather than what the user thought they executed. --- src/rabbit_control.erl | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index d920ca31..813cd7e3 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -17,7 +17,7 @@ -module(rabbit_control). -include("rabbit.hrl"). --export([start/0, stop/0, action/5, diagnostics/1, log_action/3]). +-export([start/0, stop/0, action/5, diagnostics/1, log_action/4]). -define(RPC_TIMEOUT, infinity). @@ -42,15 +42,17 @@ -ifdef(use_specs). +-type(options() :: [{string(), any()}]). + -spec(start/0 :: () -> no_return()). -spec(stop/0 :: () -> 'ok'). -spec(action/5 :: - (atom(), node(), [string()], [{string(), any()}], + (atom(), node(), [string()], options(), fun ((string(), [any()]) -> 'ok')) -> 'ok'). --spec(diagnostics/1 :: (node()) -> [{string(), [any()]}]). +-spec(diagnostics/1 :: (node()) -> options()). -spec(usage/0 :: () -> no_return()). --spec(log_action/3 :: (node(), string(), [term()]) -> ok). +-spec(log_action/4 :: (node(), string(), options(), [term()]) -> ok). -endif. @@ -73,7 +75,7 @@ start() -> Command = list_to_atom(Command0), Quiet = proplists:get_bool(?QUIET_OPT, Opts1), Node = proplists:get_value(?NODE_OPT, Opts1), - rpc_call(Node, rabbit_control, log_action, [node(), Command0, Args]), + rpc_call(Node, rabbit_control, log_action, [node(), Command, Opts, Args]), Inform = case Quiet of true -> fun (_Format, _Args1) -> ok end; false -> fun (Format, Args1) -> @@ -516,21 +518,18 @@ quit(Status) -> {win32, _} -> init:stop(Status) end. -log_action(Node, Command, Args) -> +log_action(Node, Command, Opts, Args) -> rabbit_misc:with_local_io( fun () -> - error_logger:info_msg("~p executing~n rabbitmqctl ~s ~s~n", - [Node, Command, - format_args(mask_args(Command, Args))]) + error_logger:info_msg("~p executing ~w~n Options: ~p~n" + " Arguments: ~p~n", + [Node, Command, Opts, mask_args(Command, Args)]) end). %% Mask passwords and other sensitive info before logging. -mask_args("add_user", [Name, _Password | Args]) -> +mask_args(add_user, [Name, _Password | Args]) -> [Name, "****" | Args]; -mask_args("change_password", [Name, _Password | Args]) -> +mask_args(change_password, [Name, _Password | Args]) -> [Name, "****" | Args]; mask_args(_, Args) -> Args. - -format_args(Args) -> - string:join([io_lib:format("~p", [A]) || A <- Args], " "). -- cgit v1.2.1 From e5d7a983fa04f33b8ef5e68a502c0ed46b35ec51 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 5 Sep 2011 10:21:29 +0100 Subject: don't log diagnostic rabbitmqctl commands --- src/rabbit_control.erl | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 813cd7e3..922fed90 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -519,12 +519,20 @@ quit(Status) -> end. log_action(Node, Command, Opts, Args) -> - rabbit_misc:with_local_io( - fun () -> - error_logger:info_msg("~p executing ~w~n Options: ~p~n" - " Arguments: ~p~n", - [Node, Command, Opts, mask_args(Command, Args)]) - end). + case lists:member(Command, [list_users, list_vhosts, list_permissions, + list_user_permissions, list_queues, list_exchanges, + list_bindings, list_connections, list_channels, + list_consumers, status, environment, report]) of + true -> ok; + false -> + rabbit_misc:with_local_io( + fun () -> + error_logger:info_msg("~p executing ~w~n Options: ~p~n" + " Arguments: ~p~n", + [Node, Command, Opts, mask_args(Command, + Args)]) + end) + end. %% Mask passwords and other sensitive info before logging. mask_args(add_user, [Name, _Password | Args]) -> -- cgit v1.2.1 From f978e7186f33ddc3cd4489d8a29dc059118166c2 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 5 Sep 2011 10:37:58 +0100 Subject: Backed out changeset fe7d7a2b9bd4 I misunderstood; we don't want to filter out diagnostic commands. We want to filter out commands that err'd. --- src/rabbit_control.erl | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 922fed90..813cd7e3 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -519,20 +519,12 @@ quit(Status) -> end. log_action(Node, Command, Opts, Args) -> - case lists:member(Command, [list_users, list_vhosts, list_permissions, - list_user_permissions, list_queues, list_exchanges, - list_bindings, list_connections, list_channels, - list_consumers, status, environment, report]) of - true -> ok; - false -> - rabbit_misc:with_local_io( - fun () -> - error_logger:info_msg("~p executing ~w~n Options: ~p~n" - " Arguments: ~p~n", - [Node, Command, Opts, mask_args(Command, - Args)]) - end) - end. + rabbit_misc:with_local_io( + fun () -> + error_logger:info_msg("~p executing ~w~n Options: ~p~n" + " Arguments: ~p~n", + [Node, Command, Opts, mask_args(Command, Args)]) + end). %% Mask passwords and other sensitive info before logging. mask_args(add_user, [Name, _Password | Args]) -> -- cgit v1.2.1 From 5982d07b09ebe04e94387d7abfbd433bfb7d9ad6 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 5 Sep 2011 10:49:19 +0100 Subject: report failed commands % rabbitmqctl change_password gues guest =INFO REPORT==== 5-Sep-2011::10:48:08 === rabbitmqctl23615@localhost executing change_password Options: [{"-p","/"},{"-n","rabbit@localhost"},{"-q",false}] Arguments: ["gues","****"] =WARNING REPORT==== 5-Sep-2011::10:48:09 === Command failed: {no_such_user,<<"gues">>} --- src/rabbit_control.erl | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 813cd7e3..28488f55 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -92,21 +92,21 @@ start() -> end, quit(0); {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error("invalid command '~s'", + print_error(Node, "invalid command '~s'", [string:join([atom_to_list(Command) | Args], " ")]), usage(); {error, Reason} -> - print_error("~p", [Reason]), + print_error(Node, "~p", [Reason]), quit(2); {badrpc, {'EXIT', Reason}} -> - print_error("~p", [Reason]), + print_error(Node, "~p", [Reason]), quit(2); {badrpc, Reason} -> - print_error("unable to connect to node ~w: ~w", [Node, Reason]), + print_error(Node, "unable to connect to node ~w: ~w", [Node, Reason]), print_badrpc_diagnostics(Node), quit(2); Other -> - print_error("~p", [Other]), + print_error(Node, "~p", [Other]), quit(2) end. @@ -129,7 +129,11 @@ print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> end, io:nl(). -print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). +print_error(Node, Format, Args) -> + fmt_stderr("Error: " ++ Format, Args), + rpc_call(Node, rabbit_misc, with_local_io, + [fun () -> error_logger:warning_msg("Command failed: " ++ Format + ++ "~n", Args) end]). print_badrpc_diagnostics(Node) -> [fmt_stderr(Fmt, Args) || {Fmt, Args} <- diagnostics(Node)]. -- cgit v1.2.1 From ed303341601abf6a0917f76fe717eb0d14358217 Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Mon, 5 Sep 2011 12:40:43 +0100 Subject: Be consistent with the order of credit and count in args; credit always comes first. And a basic test of credit. --- src/rabbit_amqqueue_process.erl | 6 +- src/rabbit_channel.erl | 6 +- src/rabbit_tests.erl | 134 ++++++++++++++++++++++++++++++++-------- 3 files changed, 114 insertions(+), 32 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index c728e437..4acd945c 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -476,7 +476,7 @@ reset_credit(CTag, Credit0, Count0, Drain, EchoTo, ChPid -> Available = BQ:len(BQS), #credit{ count = Count1, credit = Credit1, drain = Drain1} = NewRec, - rabbit_channel:send_credit(ChPid, CTag, Count1, Credit1, Available, Drain1) + rabbit_channel:send_credit(ChPid, CTag, Credit1, Count1, Available, Drain1) end, run_message_queue(State#q{credit_map = NewMap, active_consumers = NewActive, @@ -522,8 +522,8 @@ deliver_msgs_to_consumers(Funs = {PredFun, DeliverFun}, FunAcc, true -> #credit{ count = NewCount } = NewCreditRec, rabbit_channel:send_credit( - ChPid, ConsumerTag, NewCount, - 0, Available - 1, true); + ChPid, ConsumerTag, 0, + NewCount, Available - 1, true); _ -> ok end, {NewActiveConsumers, NewBlockedConsumers} = diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index f01f7125..caebb8bc 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -131,8 +131,8 @@ flushed(Pid, QPid) -> confirm(Pid, MsgSeqNos) -> gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). -send_credit(Pid, CTag, Count, Credit, Available, Drain) -> - gen_server2:cast(Pid, {send_credit, CTag, Count, Credit, Available, Drain}). +send_credit(Pid, CTag, Credit, Count, Available, Drain) -> + gen_server2:cast(Pid, {send_credit, CTag, Credit, Count, Available, Drain}). list() -> rabbit_misc:append_rpc_all_nodes(rabbit_mnesia:running_clustered_nodes(), @@ -310,7 +310,7 @@ handle_cast({deliver, ConsumerTag, AckRequired, rabbit_trace:tap_trace_out(Msg, TraceState), noreply(State1#ch{next_tag = DeliveryTag + 1}); -handle_cast({send_credit, CTag, Count, Credit, Available, Drain}, +handle_cast({send_credit, CTag, Credit, Count, Available, Drain}, State = #ch{writer_pid = WriterPid}) -> ok = rabbit_writer:send_command( WriterPid, #'basic.credit'{consumer_tag = CTag, diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index bce6d032..bfeb4821 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -18,7 +18,9 @@ -compile([export_all]). --export([all_tests/0, test_parsing/0, test_serial_arithmetic/0]). +-export([all_tests/0]). + +%-compile(export_all). -import(rabbit_misc, [pget/2]). @@ -62,6 +64,7 @@ all_tests() -> passed = test_user_management(), passed = test_server_status(), passed = test_confirms(), + passed = test_credit(), passed = maybe_run_cluster_dependent_tests(), passed = test_configurable_server_properties(), passed. @@ -1287,7 +1290,16 @@ test_server_status() -> test_writer(Pid) -> receive shutdown -> ok; - {send_command, Method} -> Pid ! Method, test_writer(Pid) + {send_command, Method} -> + Pid ! Method, test_writer(Pid); + {send_command_and_notify, QPid, ChPid, Method} -> + Pid ! Method, + rabbit_amqqueue:notify_sent(QPid, ChPid), + test_writer(Pid); + {send_command_and_notify, QPid, ChPid, Method, Content} -> + Pid ! {Method, Content}, + rabbit_amqqueue:notify_sent(QPid, ChPid), + test_writer(Pid) end. test_spawn() -> @@ -1330,28 +1342,31 @@ user(Username) -> impl = #internal_user{username = Username, tags = [administrator]}}. +declare_and_bind_queue(Ch, Durable, RK) -> + rabbit_channel:do(Ch, #'queue.declare'{durable = Durable}), + receive #'queue.declare_ok'{queue = Q0} -> + rabbit_channel:do(Ch, #'queue.bind'{ + queue = Q0, + exchange = <<"amq.direct">>, + routing_key = RK }), + receive #'queue.bind_ok'{} -> + Q0 + after 1000 -> throw(failed_to_bind_queue) + end + after 1000 -> throw(failed_to_declare_queue) + end. + +send_msg(Ch, RK) -> + rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"amq.direct">>, + routing_key = RK}, + rabbit_basic:build_content( + #'P_basic'{delivery_mode = 2}, <<"">>)). + test_confirms() -> {_Writer, Ch} = test_spawn(), - DeclareBindDurableQueue = - fun() -> - rabbit_channel:do(Ch, #'queue.declare'{durable = true}), - receive #'queue.declare_ok'{queue = Q0} -> - rabbit_channel:do(Ch, #'queue.bind'{ - queue = Q0, - exchange = <<"amq.direct">>, - routing_key = "magic" }), - receive #'queue.bind_ok'{} -> - Q0 - after 1000 -> - throw(failed_to_bind_queue) - end - after 1000 -> - throw(failed_to_declare_queue) - end - end, %% Declare and bind two queues - QName1 = DeclareBindDurableQueue(), - QName2 = DeclareBindDurableQueue(), + QName1 = declare_and_bind_queue(Ch, true, "magic"), + QName2 = declare_and_bind_queue(Ch, true, "magic"), %% Get the first one's pid (we'll crash it later) {ok, Q1} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName1)), QPid1 = Q1#amqqueue.pid, @@ -1362,11 +1377,7 @@ test_confirms() -> after 1000 -> throw(failed_to_enable_confirms) end, %% Publish a message - rabbit_channel:do(Ch, #'basic.publish'{exchange = <<"amq.direct">>, - routing_key = "magic" - }, - rabbit_basic:build_content( - #'P_basic'{delivery_mode = 2}, <<"">>)), + send_msg(Ch, "magic"), %% Crash the queue QPid1 ! boom, %% Wait for a nack @@ -1390,6 +1401,77 @@ test_confirms() -> passed. +test_credit() -> + passed = test_credit_limit(), + passed. + +%% ---- credit + +consumer(Ch, Queue, NoAck) -> + rabbit_channel:do(Ch, #'basic.consume'{ queue = Queue, no_ack = NoAck }), + receive + #'basic.consume_ok'{ consumer_tag = CTag } -> CTag + after 1000 -> throw(no_consume_ok_received) + end. + +check_no_deliveries(Ch, QName, Durable) -> + rabbit_channel:do(Ch, #'queue.declare'{ queue = QName, + durable = Durable, + passive = true }), + receive + {#'basic.deliver'{}, _} -> + throw(unexpected_delivery); + #'queue.declare_ok'{} -> + ok + after 1000 -> throw(no_queue_declare_ok_received) + end. + +test_credit_limit() -> + {_Writer, Ch} = test_spawn(), + QName = declare_and_bind_queue(Ch, false, <<"credit">>), + CTag = consumer(Ch, QName, true), + {ok, Q} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName)), + rabbit_amqqueue:set_credit(Q, CTag, 10, 0, false, self()), + receive + {'$gen_cast', {send_credit, CTag, 10, 0, 0, false}} -> ok + after 1000 -> throw(no_credit_echo_received) + end, + + %% We've given the queue a credit. Send a message and make sure + %% 1. it comes back through the consumer 2. the credit is reduced. + + send_msg(Ch, <<"credit">>), + receive + {#'basic.deliver'{}, _} -> + %% pretend count is at 0 still + rabbit_amqqueue:set_credit(Q, CTag, 1, 0, false, self()), + receive + %% told count is at 1 (and so 0 credit rather than 1) + {'$gen_cast', {send_credit, CTag, 0, 1, 0, false}} -> ok; + Else -> throw({unexpected, Else}) + after 1000 -> + throw(expected_credit_echo) + end + after 1000 -> throw(delivery_expected) + end, + + %% No credit now. Send another message, and make sure it's not + %% delivered. + send_msg(Ch, <<"credit">>), + ok = check_no_deliveries(Ch, QName, false), + + %% Increase the credit and make sure we get a message again. + rabbit_amqqueue:set_credit(Q, CTag, 1, 1, false, undefined), + receive + {#'basic.deliver'{}, _} -> + ok + after 1000 -> throw(expected_delivery_after_credit_increase) + end, + + passed. + +%% ---- + test_statistics_event_receiver(Pid) -> receive Foo -> Pid ! Foo, test_statistics_event_receiver(Pid) -- cgit v1.2.1 From 1b031a8635df8ef2561c085ee68aee540959a11d Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Mon, 5 Sep 2011 12:59:04 +0100 Subject: Remove spurious export_all --- src/rabbit_tests.erl | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index bfeb4821..000899ee 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -20,8 +20,6 @@ -export([all_tests/0]). -%-compile(export_all). - -import(rabbit_misc, [pget/2]). -include("rabbit.hrl"). -- cgit v1.2.1 From c9ad73571762a2d6860d608687ddac5e6e38da7c Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 5 Sep 2011 13:28:25 +0100 Subject: quote the command name and include the calling node in the error message --- src/rabbit_control.erl | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 28488f55..a2d79fae 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -92,21 +92,22 @@ start() -> end, quit(0); {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error(Node, "invalid command '~s'", + print_error(Node, Command, "invalid command '~s'", [string:join([atom_to_list(Command) | Args], " ")]), usage(); {error, Reason} -> - print_error(Node, "~p", [Reason]), + print_error(Node, Command, "~p", [Reason]), quit(2); {badrpc, {'EXIT', Reason}} -> - print_error(Node, "~p", [Reason]), + print_error(Node, Command, "~p", [Reason]), quit(2); {badrpc, Reason} -> - print_error(Node, "unable to connect to node ~w: ~w", [Node, Reason]), + print_error(Node, Command, "unable to connect to node ~w: ~w", + [Node, Reason]), print_badrpc_diagnostics(Node), quit(2); Other -> - print_error(Node, "~p", [Other]), + print_error(Node, Command, "~p", [Other]), quit(2) end. @@ -129,11 +130,14 @@ print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> end, io:nl(). -print_error(Node, Format, Args) -> +print_error(Node, Command, Format, Args) -> fmt_stderr("Error: " ++ Format, Args), + ControlNode = node(), rpc_call(Node, rabbit_misc, with_local_io, - [fun () -> error_logger:warning_msg("Command failed: " ++ Format - ++ "~n", Args) end]). + [fun () -> error_logger:warning_msg("~w '~w' command failed: " + ++ Format ++ "~n", + [ControlNode, Command] ++ Args) + end]). print_badrpc_diagnostics(Node) -> [fmt_stderr(Fmt, Args) || {Fmt, Args} <- diagnostics(Node)]. @@ -525,7 +529,7 @@ quit(Status) -> log_action(Node, Command, Opts, Args) -> rabbit_misc:with_local_io( fun () -> - error_logger:info_msg("~p executing ~w~n Options: ~p~n" + error_logger:info_msg("~p executing '~w'~n Options: ~p~n" " Arguments: ~p~n", [Node, Command, Opts, mask_args(Command, Args)]) end). -- cgit v1.2.1 From 5b14c7a32237c46882180822ad10a9b6a6ed49bb Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Mon, 5 Sep 2011 14:49:02 +0100 Subject: Clean up properly after this test. --- src/rabbit_tests.erl | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 000899ee..de8d2952 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1270,6 +1270,9 @@ test_server_status() -> [ConnPid] = rabbit_networking:connections(), ok = control_action(close_connection, [rabbit_misc:pid_to_string(ConnPid), "go away"]), + receive {tcp_closed, _} -> ok + after 1000 -> throw (connection_not_closed) + end, %% list channels ok = info_action(list_channels, rabbit_channel:info_keys(), false), -- cgit v1.2.1 From fed502c3a059c0ae868fe6648611002b3733418e Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Mon, 5 Sep 2011 18:30:55 +0100 Subject: Test for drain. This fails because the edge case of having nothing in the queue and getting a drain isn't handled. --- src/rabbit_tests.erl | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index de8d2952..5c18310f 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1404,6 +1404,7 @@ test_confirms() -> test_credit() -> passed = test_credit_limit(), + passed = test_credit_drain(), passed. %% ---- credit @@ -1471,6 +1472,28 @@ test_credit_limit() -> passed. +test_credit_drain() -> + {_W, Ch} = test_spawn(), + QName = declare_and_bind_queue(Ch, false, <<"drain">>), + CTag = consumer(Ch, QName, true), + {ok, Q} = rabbit_amqqueue:lookup(rabbit_misc:r(<<"/">>, queue, QName)), + rabbit_amqqueue:set_credit(Q, CTag, 10, 0, true, self()), + %% We set drain and we gave a pid to which to reply; that means + %% we'll get two flow controls back, the response to echo, and the + %% drain indicting all credit is spent. + receive + {'$gen_cast', {send_credit, CTag, 10, 0, 0, true}} -> + receive + {'$gen_cast', {send_credit, CTag, 0, 0, 0, true}} -> ok; + Else -> throw({unexpected, Else}) + after 1000 -> throw(no_credit_drain_received) + end; + Else1 -> throw({unexpected, Else1}) + after 1000 -> throw(no_credit_echo_received) + end, + + passed. + %% ---- test_statistics_event_receiver(Pid) -> -- cgit v1.2.1 From d95c29df1ca3db882c8ea2e0261c5b44fd80e7de Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 6 Sep 2011 15:34:02 +0100 Subject: Drop opt and pdict from bq:format_status --- include/rabbit_backing_queue_spec.hrl | 3 +-- src/rabbit_amqqueue_process.erl | 11 +++++------ src/rabbit_backing_queue.erl | 7 ++++--- src/rabbit_mirror_queue_master.erl | 21 ++++++++++----------- src/rabbit_variable_queue.erl | 22 +++++++++++----------- 5 files changed, 31 insertions(+), 33 deletions(-) diff --git a/include/rabbit_backing_queue_spec.hrl b/include/rabbit_backing_queue_spec.hrl index 37ab91bc..5d589f59 100644 --- a/include/rabbit_backing_queue_spec.hrl +++ b/include/rabbit_backing_queue_spec.hrl @@ -66,5 +66,4 @@ (rabbit_types:basic_message(), state()) -> {'false'|'published'|'discarded', state()}). -spec(discard/3 :: (rabbit_types:basic_message(), pid(), state()) -> state()). --spec(format_status/2 :: ('normal' | 'terminate', [[{any(), any()}] | state()]) - -> term()). +-spec(format_status/1 :: (state()) -> term()). diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 5b700d23..cde9247a 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1214,13 +1214,12 @@ handle_pre_hibernate(State = #q{backing_queue = BQ, format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). -format_status(Opt, [PDict, State = #q{backing_queue = BQ, - backing_queue_state = BQS, - msg_id_to_channel = MTC}]) -> +format_status(_Opt, [_PDict, State = #q{backing_queue = BQ, + backing_queue_state = BQS, + msg_id_to_channel = MTC}]) -> State1 = setelement(1, State, q_formatted), State2 = lists:foldl( fun({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, - State1, [{#q.backing_queue_state, - BQ:format_status(Opt, [PDict, BQS])}, - {#q.msg_id_to_channel, dict:to_list(MTC)}]), + State1, [{#q.backing_queue_state, BQ:format_status(BQS)}, + {#q.msg_id_to_channel, dict:to_list(MTC)}]), [{data, [{"State", State2}]}]. diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl index aed733d0..1fc0fa44 100644 --- a/src/rabbit_backing_queue.erl +++ b/src/rabbit_backing_queue.erl @@ -168,9 +168,10 @@ behaviour_info(callbacks) -> {discard, 3}, %% As for format_status in gen_server, except it is not optional, - %% and the returned term should be the plain term and not wrapped - %% in [{data, [{"State", Term}]}]. - {format_status, 2} + %% it is only passed the backing queue's state, and the returned + %% term should be the plain term and not wrapped in [{data, + %% [{"State", Term}]}]. + {format_status, 1} ]; behaviour_info(_Other) -> undefined. diff --git a/src/rabbit_mirror_queue_master.erl b/src/rabbit_mirror_queue_master.erl index ad237f63..d0e834f8 100644 --- a/src/rabbit_mirror_queue_master.erl +++ b/src/rabbit_mirror_queue_master.erl @@ -21,7 +21,7 @@ requeue/3, len/1, is_empty/1, drain_confirmed/1, dropwhile/2, set_ram_duration_target/2, ram_duration/1, needs_timeout/1, timeout/1, handle_pre_hibernate/1, - status/1, invoke/3, is_duplicate/2, discard/3, format_status/2]). + status/1, invoke/3, is_duplicate/2, discard/3, format_status/1]). -export([start/1, stop/0]). @@ -347,19 +347,18 @@ discard(Msg = #basic_message { id = MsgId }, ChPid, State end. -format_status(Opt, [PDict, State = #state { backing_queue = BQ, - backing_queue_state = BQS, - seen_status = SS, - ack_msg_id = AM, - known_senders = KS }]) -> +format_status(State = #state { backing_queue = BQ, + backing_queue_state = BQS, + seen_status = SS, + ack_msg_id = AM, + known_senders = KS }) -> State1 = setelement(1, State, state_formatted), lists:foldl( fun ({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, - State1, [{#state.backing_queue_state, - BQ:format_status(Opt, [PDict, BQS])}, - {#state.seen_status, dict:to_list(SS)}, - {#state.ack_msg_id, dict:to_list(AM)}, - {#state.known_senders, sets:to_list(KS)}]). + State1, [{#state.backing_queue_state, BQ:format_status(BQS)}, + {#state.seen_status, dict:to_list(SS)}, + {#state.ack_msg_id, dict:to_list(AM)}, + {#state.known_senders, sets:to_list(KS)}]). %% --------------------------------------------------------------------------- %% Other exported functions diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index bed76957..94584346 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -21,7 +21,7 @@ dropwhile/2, fetch/2, ack/2, requeue/3, len/1, is_empty/1, set_ram_duration_target/2, ram_duration/1, needs_timeout/1, timeout/1, handle_pre_hibernate/1, - status/1, invoke/3, is_duplicate/2, discard/3, format_status/2, + status/1, invoke/3, is_duplicate/2, discard/3, format_status/1, multiple_routing_keys/0]). -export([start/1, stop/0]). @@ -732,16 +732,16 @@ is_duplicate(_Msg, State) -> {false, State}. discard(_Msg, _ChPid, State) -> State. -format_status(_Opt, [_PDict, State = #vqstate { q1 = Q1, - q2 = Q2, - q3 = Q3, - q4 = Q4, - pending_ack = PA, - ram_ack_index = RAI, - msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC, - confirmed = C }]) -> +format_status(State = #vqstate { q1 = Q1, + q2 = Q2, + q3 = Q3, + q4 = Q4, + pending_ack = PA, + ram_ack_index = RAI, + msgs_on_disk = MOD, + msg_indices_on_disk = MIOD, + unconfirmed = UC, + confirmed = C }) -> State1 = setelement(1, State, vqstate_formatted), lists:foldl( fun ({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, -- cgit v1.2.1 From 777ced6020986501aff619e74cf6af899486f5c0 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 6 Sep 2011 15:35:58 +0100 Subject: Also prepare active consumers and blocked consumers --- src/rabbit_amqqueue_process.erl | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index cde9247a..c536fdcb 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1216,10 +1216,14 @@ format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). format_status(_Opt, [_PDict, State = #q{backing_queue = BQ, backing_queue_state = BQS, - msg_id_to_channel = MTC}]) -> + msg_id_to_channel = MTC, + active_consumers = AC, + blocked_consumers = BC}]) -> State1 = setelement(1, State, q_formatted), State2 = lists:foldl( fun({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, State1, [{#q.backing_queue_state, BQ:format_status(BQS)}, - {#q.msg_id_to_channel, dict:to_list(MTC)}]), + {#q.msg_id_to_channel, dict:to_list(MTC)}, + {#q.active_consumers, queue:to_list(AC)}, + {#q.blocked_consumers, queue:to_list(BC)}]), [{data, [{"State", State2}]}]. -- cgit v1.2.1 From 8b4ca9ec4c3ef55db472bcfea1ffbae9a2bb1b03 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 6 Sep 2011 15:47:52 +0100 Subject: Factoring --- src/rabbit_amqqueue_process.erl | 11 +++++------ src/rabbit_mirror_queue_master.erl | 12 +++++------- src/rabbit_misc.erl | 9 ++++++++- src/rabbit_variable_queue.erl | 25 ++++++++++++------------- 4 files changed, 30 insertions(+), 27 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index c536fdcb..874a262d 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1219,11 +1219,10 @@ format_status(_Opt, [_PDict, State = #q{backing_queue = BQ, msg_id_to_channel = MTC, active_consumers = AC, blocked_consumers = BC}]) -> - State1 = setelement(1, State, q_formatted), - State2 = lists:foldl( - fun({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, - State1, [{#q.backing_queue_state, BQ:format_status(BQS)}, + FState = + rabbit_misc:update_and_convert_record( + q_formatted, [{#q.backing_queue_state, BQ:format_status(BQS)}, {#q.msg_id_to_channel, dict:to_list(MTC)}, {#q.active_consumers, queue:to_list(AC)}, - {#q.blocked_consumers, queue:to_list(BC)}]), - [{data, [{"State", State2}]}]. + {#q.blocked_consumers, queue:to_list(BC)}], State), + [{data, [{"State", FState}]}]. diff --git a/src/rabbit_mirror_queue_master.erl b/src/rabbit_mirror_queue_master.erl index d0e834f8..da83e195 100644 --- a/src/rabbit_mirror_queue_master.erl +++ b/src/rabbit_mirror_queue_master.erl @@ -352,13 +352,11 @@ format_status(State = #state { backing_queue = BQ, seen_status = SS, ack_msg_id = AM, known_senders = KS }) -> - State1 = setelement(1, State, state_formatted), - lists:foldl( - fun ({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, - State1, [{#state.backing_queue_state, BQ:format_status(BQS)}, - {#state.seen_status, dict:to_list(SS)}, - {#state.ack_msg_id, dict:to_list(AM)}, - {#state.known_senders, sets:to_list(KS)}]). + rabbit_misc:update_and_convert_record( + state_formatted, [{#state.backing_queue_state, BQ:format_status(BQS)}, + {#state.seen_status, dict:to_list(SS)}, + {#state.ack_msg_id, dict:to_list(AM)}, + {#state.known_senders, sets:to_list(KS)}], State). %% --------------------------------------------------------------------------- %% Other exported functions diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index ae28722a..04009024 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -57,7 +57,7 @@ -export([ntoa/1, ntoab/1]). -export([is_process_alive/1]). -export([pget/2, pget/3, pget_or_die/2]). --export([format_message_queue/2]). +-export([format_message_queue/2, update_and_convert_record/3]). -export([append_rpc_all_nodes/4]). %%---------------------------------------------------------------------------- @@ -209,6 +209,8 @@ -spec(pget/3 :: (term(), [term()], term()) -> term()). -spec(pget_or_die/2 :: (term(), [term()]) -> term() | no_return()). -spec(format_message_queue/2 :: (any(), priority_queue:q()) -> term()). +-spec(update_and_convert_record/3 :: (atom(), [{non_neg_integer(), any()}], + tuple()) -> tuple()). -spec(append_rpc_all_nodes/4 :: ([node()], atom(), atom(), [any()]) -> [any()]). -endif. @@ -957,6 +959,11 @@ format_message_queue_entry(V) when is_tuple(V) -> format_message_queue_entry(_V) -> '_'. +update_and_convert_record(NewRecordName, PosValList, Record) -> + Tuple = setelement(1, Record, NewRecordName), + lists:foldl(fun ({Pos, Val}, TupleN) -> setelement(Pos, TupleN, Val) end, + Tuple, PosValList). + append_rpc_all_nodes(Nodes, M, F, A) -> {ResL, _} = rpc:multicall(Nodes, M, F, A), lists:append([case Res of diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 94584346..76db9f95 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -742,19 +742,18 @@ format_status(State = #vqstate { q1 = Q1, msg_indices_on_disk = MIOD, unconfirmed = UC, confirmed = C }) -> - State1 = setelement(1, State, vqstate_formatted), - lists:foldl( - fun ({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, - State1, [{#vqstate.q1, format_queue(Q1)}, - {#vqstate.q2, format_bpqueue(Q2)}, - {#vqstate.q3, format_bpqueue(Q3)}, - {#vqstate.q4, format_queue(Q4)}, - {#vqstate.pending_ack, format_pending_acks(PA)}, - {#vqstate.ram_ack_index, gb_trees:to_list(RAI)}, - {#vqstate.msgs_on_disk, gb_sets:to_list(MOD)}, - {#vqstate.msg_indices_on_disk, gb_sets:to_list(MIOD)}, - {#vqstate.unconfirmed, gb_sets:to_list(UC)}, - {#vqstate.confirmed, gb_sets:to_list(C)}]). + rabbit_misc:update_and_convert_record( + vqstate_formatted, + [{#vqstate.q1, format_queue(Q1)}, + {#vqstate.q2, format_bpqueue(Q2)}, + {#vqstate.q3, format_bpqueue(Q3)}, + {#vqstate.q4, format_queue(Q4)}, + {#vqstate.pending_ack, format_pending_acks(PA)}, + {#vqstate.ram_ack_index, gb_trees:to_list(RAI)}, + {#vqstate.msgs_on_disk, gb_sets:to_list(MOD)}, + {#vqstate.msg_indices_on_disk, gb_sets:to_list(MIOD)}, + {#vqstate.unconfirmed, gb_sets:to_list(UC)}, + {#vqstate.confirmed, gb_sets:to_list(C)}], State). %%---------------------------------------------------------------------------- %% Minor helpers -- cgit v1.2.1 From 0b99899cc82634fd1b9ee2c962355eac83c2e9ec Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 6 Sep 2011 15:50:44 +0100 Subject: Derp --- src/rabbit_mirror_queue_slave.erl | 33 ++++++++++++++++----------------- 1 file changed, 16 insertions(+), 17 deletions(-) diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index 3a2e215e..22755635 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -307,23 +307,22 @@ prioritise_info(Msg, _State) -> format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). -format_status(Opt, [PDict, State = #state { backing_queue = BQ, - backing_queue_state = BQS, - sender_queues = SQ, - msg_id_ack = MA, - msg_id_status = MS, - known_senders = KS }]) -> - State1 = setelement(1, State, state_formatted), - State2 = lists:foldl( - fun({Pos, Value}, StateN) -> setelement(Pos, StateN, Value) end, - State1, [{#state.backing_queue_state, - BQ:format_status(Opt, [PDict, BQS])}, - {#state.sender_queues, format_sender_queues(SQ)} | - [{Pos, dict:to_list(Dict)} || - {Pos, Dict} <- [{#state.msg_id_ack, MA}, - {#state.msg_id_status, MS}, - {#state.known_senders, KS}]]]), - [{data, [{"State", State2}]}]. +format_status(_Opt, [_PDict, State = #state { backing_queue = BQ, + backing_queue_state = BQS, + sender_queues = SQ, + msg_id_ack = MA, + msg_id_status = MS, + known_senders = KS }]) -> + FState = + rabbit_misc:update_and_convert_record( + state_formatted, [{#state.backing_queue_state, BQ:format_status(BQS)}, + {#state.sender_queues, format_sender_queues(SQ)} | + [{Pos, dict:to_list(Dict)} || + {Pos, Dict} <- [{#state.msg_id_ack, MA}, + {#state.msg_id_status, MS}, + {#state.known_senders, KS}]]], + State), + [{data, [{"State", FState}]}]. %% --------------------------------------------------------------------------- %% GM -- cgit v1.2.1 From ccceb9a0da73e27fa1fb285486edc19f31936eaa Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Tue, 6 Sep 2011 15:56:20 +0100 Subject: Factoring; avoid record syntax when we're violating a record's type --- src/rabbit_mirror_queue_slave.erl | 5 +++-- src/rabbit_variable_queue.erl | 13 +++++++------ 2 files changed, 10 insertions(+), 8 deletions(-) diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index 22755635..54cdda9f 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -931,7 +931,8 @@ format_sender_queues(SQ) -> || {ChPid, {MQ, PendingCh}} <- dict:to_list(SQ)]. format_sender_queue(MQ) -> - [{Delivery #delivery { message = Msg #basic_message { content = '_' } }, - EnqueueOnPromotion} + [{Delivery #delivery { + message = setelement(#basic_message.content, Msg, '_') }, + EnqueueOnPromotion} || {Delivery = #delivery { message = Msg }, EnqueueOnPromotion} <- queue:to_list(MQ)]. diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 76db9f95..b569fdcc 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -749,11 +749,12 @@ format_status(State = #vqstate { q1 = Q1, {#vqstate.q3, format_bpqueue(Q3)}, {#vqstate.q4, format_queue(Q4)}, {#vqstate.pending_ack, format_pending_acks(PA)}, - {#vqstate.ram_ack_index, gb_trees:to_list(RAI)}, - {#vqstate.msgs_on_disk, gb_sets:to_list(MOD)}, - {#vqstate.msg_indices_on_disk, gb_sets:to_list(MIOD)}, - {#vqstate.unconfirmed, gb_sets:to_list(UC)}, - {#vqstate.confirmed, gb_sets:to_list(C)}], State). + {#vqstate.ram_ack_index, gb_trees:to_list(RAI)} | + [{Pos, gb_sets:to_list(Set)} || + {Pos, Set} <- [{#vqstate.msgs_on_disk, MOD}, + {#vqstate.msg_indices_on_disk, MIOD}, + {#vqstate.unconfirmed, UC}, + {#vqstate.confirmed, C}]]], State). %%---------------------------------------------------------------------------- %% Minor helpers @@ -818,7 +819,7 @@ format_pending_acks(PA) -> end, [], PA). format_msg_status(MsgStatus = #msg_status { msg = undefined }) -> MsgStatus; -format_msg_status(MsgStatus) -> MsgStatus #msg_status { msg = '_' }. +format_msg_status(MsgStatus) -> setelement(#msg_status.msg, MsgStatus, '_'). msg_status(IsPersistent, SeqId, Msg = #basic_message { id = MsgId }, MsgProps) -> -- cgit v1.2.1 From 309fd0f182603dcacbab78bf72f805953e33756e Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Fri, 9 Sep 2011 10:37:32 +0100 Subject: cosmetic --- src/rabbit_misc.erl | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 04009024..4e6b0826 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -960,9 +960,8 @@ format_message_queue_entry(_V) -> '_'. update_and_convert_record(NewRecordName, PosValList, Record) -> - Tuple = setelement(1, Record, NewRecordName), - lists:foldl(fun ({Pos, Val}, TupleN) -> setelement(Pos, TupleN, Val) end, - Tuple, PosValList). + lists:foldl(fun ({Pos, Val}, Tuple) -> setelement(Pos, Tuple, Val) end, + setelement(1, Record, NewRecordName), PosValList). append_rpc_all_nodes(Nodes, M, F, A) -> {ResL, _} = rpc:multicall(Nodes, M, F, A), -- cgit v1.2.1 From 17b28a3be60b407e9f7deb2f8f2e37b4ea1e5ffb Mon Sep 17 00:00:00 2001 From: Michael Bridgen Date: Tue, 20 Sep 2011 16:34:26 +0100 Subject: Deal with adding negative numbers to serial numbers (i.e., subtracting; NB different from the difference of two serial numbers) --- src/rabbit_misc.erl | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 2609573b..4d952b12 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -938,8 +938,9 @@ ntoab(IP) -> %% 2 ^ (SERIAL_BITS - 1) - 1 -define(SERIAL_MAX_ADDEND, 16#7fffffff). -serial_add(S, N) when N =< ?SERIAL_MAX_ADDEND -> - (S + N) rem ?SERIAL_MAX; +serial_add(S, N) when + N =< ?SERIAL_MAX_ADDEND andalso N > - ?SERIAL_MAX_ADDEND -> + (S + N + ?SERIAL_MAX) rem ?SERIAL_MAX; serial_add(S, N) -> exit({out_of_bound_serial_addition, S, N}). -- cgit v1.2.1 From 7dd061ac3a99e477e5e8ddd1647850c406c2d28b Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 22 Sep 2011 17:24:34 +0100 Subject: We want to stay as close as possible to a real #vqstate, so remove a bunch of custom formatting and keep only the bits that strip message bodies. --- src/rabbit_amqqueue_process.erl | 11 +++-------- src/rabbit_mirror_queue_master.erl | 11 +++-------- src/rabbit_mirror_queue_slave.erl | 26 +++----------------------- src/rabbit_variable_queue.erl | 37 ++++++++----------------------------- 4 files changed, 17 insertions(+), 68 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 894d7351..4e11fba7 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1212,14 +1212,9 @@ handle_pre_hibernate(State = #q{backing_queue = BQ, format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). format_status(_Opt, [_PDict, State = #q{backing_queue = BQ, - backing_queue_state = BQS, - msg_id_to_channel = MTC, - active_consumers = AC, - blocked_consumers = BC}]) -> + backing_queue_state = BQS}]) -> FState = rabbit_misc:update_and_convert_record( - q_formatted, [{#q.backing_queue_state, BQ:format_status(BQS)}, - {#q.msg_id_to_channel, dict:to_list(MTC)}, - {#q.active_consumers, queue:to_list(AC)}, - {#q.blocked_consumers, queue:to_list(BC)}], State), + q_formatted, [{#q.backing_queue_state, BQ:format_status(BQS)}], + State), [{data, [{"State", FState}]}]. diff --git a/src/rabbit_mirror_queue_master.erl b/src/rabbit_mirror_queue_master.erl index 946168fe..4bdb2b41 100644 --- a/src/rabbit_mirror_queue_master.erl +++ b/src/rabbit_mirror_queue_master.erl @@ -352,15 +352,10 @@ discard(Msg = #basic_message { id = MsgId }, ChPid, end. format_status(State = #state { backing_queue = BQ, - backing_queue_state = BQS, - seen_status = SS, - ack_msg_id = AM, - known_senders = KS }) -> + backing_queue_state = BQS}) -> rabbit_misc:update_and_convert_record( - state_formatted, [{#state.backing_queue_state, BQ:format_status(BQS)}, - {#state.seen_status, dict:to_list(SS)}, - {#state.ack_msg_id, dict:to_list(AM)}, - {#state.known_senders, sets:to_list(KS)}], State). + state_formatted, [{#state.backing_queue_state, BQ:format_status(BQS)}], + State). %% --------------------------------------------------------------------------- %% Other exported functions diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index 6faad534..db55553c 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -319,20 +319,11 @@ prioritise_info(Msg, _State) -> format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). format_status(_Opt, [_PDict, State = #state { backing_queue = BQ, - backing_queue_state = BQS, - sender_queues = SQ, - msg_id_ack = MA, - msg_id_status = MS, - known_senders = KS }]) -> + backing_queue_state = BQS }]) -> FState = rabbit_misc:update_and_convert_record( - state_formatted, [{#state.backing_queue_state, BQ:format_status(BQS)}, - {#state.sender_queues, format_sender_queues(SQ)} | - [{Pos, dict:to_list(Dict)} || - {Pos, Dict} <- [{#state.msg_id_ack, MA}, - {#state.msg_id_status, MS}, - {#state.known_senders, KS}]]], - State), + state_formatted, + [{#state.backing_queue_state, BQ:format_status(BQS)}], State), [{data, [{"State", FState}]}]. %% --------------------------------------------------------------------------- @@ -936,14 +927,3 @@ set_synchronised(true, State) -> State; set_synchronised(false, State = #state { synchronised = false }) -> State. - -format_sender_queues(SQ) -> - [{ChPid, {format_sender_queue(MQ), sets:to_list(PendingCh)}} - || {ChPid, {MQ, PendingCh}} <- dict:to_list(SQ)]. - -format_sender_queue(MQ) -> - [{Delivery #delivery { - message = setelement(#basic_message.content, Msg, '_') }, - EnqueueOnPromotion} - || {Delivery = #delivery { message = Msg }, EnqueueOnPromotion} - <- queue:to_list(MQ)]. diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index b569fdcc..6511c5f7 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -732,29 +732,15 @@ is_duplicate(_Msg, State) -> {false, State}. discard(_Msg, _ChPid, State) -> State. -format_status(State = #vqstate { q1 = Q1, - q2 = Q2, - q3 = Q3, - q4 = Q4, - pending_ack = PA, - ram_ack_index = RAI, - msgs_on_disk = MOD, - msg_indices_on_disk = MIOD, - unconfirmed = UC, - confirmed = C }) -> +format_status(State = #vqstate{q1 = Q1, + q2 = Q2, + q3 = Q3, + q4 = Q4}) -> rabbit_misc:update_and_convert_record( - vqstate_formatted, - [{#vqstate.q1, format_queue(Q1)}, - {#vqstate.q2, format_bpqueue(Q2)}, - {#vqstate.q3, format_bpqueue(Q3)}, - {#vqstate.q4, format_queue(Q4)}, - {#vqstate.pending_ack, format_pending_acks(PA)}, - {#vqstate.ram_ack_index, gb_trees:to_list(RAI)} | - [{Pos, gb_sets:to_list(Set)} || - {Pos, Set} <- [{#vqstate.msgs_on_disk, MOD}, - {#vqstate.msg_indices_on_disk, MIOD}, - {#vqstate.unconfirmed, UC}, - {#vqstate.confirmed, C}]]], State). + vqstate_formatted, [{#vqstate.q1, format_queue(Q1)}, + {#vqstate.q2, format_bpqueue(Q2)}, + {#vqstate.q3, format_bpqueue(Q3)}, + {#vqstate.q4, format_queue(Q4)}], State). %%---------------------------------------------------------------------------- %% Minor helpers @@ -811,13 +797,6 @@ format_bpqueue(Q) -> beta_fold(fun (MsgStatus, Acc) -> [format_msg_status(MsgStatus) | Acc] end, [], Q). -format_pending_acks(PA) -> - dict:fold(fun (SeqId, {_IsPersistent, _MsgId, _MsgProps} = OnDisk, Acc) -> - [{SeqId, OnDisk} | Acc]; - (SeqId, MsgStatus = #msg_status {}, Acc) -> - [{SeqId, format_msg_status(MsgStatus)} | Acc] - end, [], PA). - format_msg_status(MsgStatus = #msg_status { msg = undefined }) -> MsgStatus; format_msg_status(MsgStatus) -> setelement(#msg_status.msg, MsgStatus, '_'). -- cgit v1.2.1 From f74a9016b524d8b7f28b0ff81efb51384271e723 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 22 Sep 2011 17:39:06 +0100 Subject: Matthias points out that betas and gammas already do not contain message contents, so this stuff was a no-op. --- src/rabbit_variable_queue.erl | 6 ------ 1 file changed, 6 deletions(-) diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 6511c5f7..5376c2a9 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -738,8 +738,6 @@ format_status(State = #vqstate{q1 = Q1, q4 = Q4}) -> rabbit_misc:update_and_convert_record( vqstate_formatted, [{#vqstate.q1, format_queue(Q1)}, - {#vqstate.q2, format_bpqueue(Q2)}, - {#vqstate.q3, format_bpqueue(Q3)}, {#vqstate.q4, format_queue(Q4)}], State). %%---------------------------------------------------------------------------- @@ -793,10 +791,6 @@ gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). format_queue(Q) -> [format_msg_status(MsgStatus) || MsgStatus <- queue:to_list(Q)]. -format_bpqueue(Q) -> - beta_fold(fun (MsgStatus, Acc) -> [format_msg_status(MsgStatus) | Acc] end, - [], Q). - format_msg_status(MsgStatus = #msg_status { msg = undefined }) -> MsgStatus; format_msg_status(MsgStatus) -> setelement(#msg_status.msg, MsgStatus, '_'). -- cgit v1.2.1 From c2b65813b9b05d43de3fba687e350b9a1d94cf99 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Wed, 28 Sep 2011 22:35:42 +0100 Subject: don't bother changing the record name Now that the alterations we make to the state record are very slight, the rationale for changing the record name is weaker. And keeping the name unaltered helps during debugging, since we can use the existing record definitions for interrogation. Also, fix unused var warnings and record syntax formatting in vq:format_status. --- src/rabbit_amqqueue_process.erl | 6 +----- src/rabbit_mirror_queue_master.erl | 4 +--- src/rabbit_mirror_queue_slave.erl | 7 ++----- src/rabbit_misc.erl | 8 +------- src/rabbit_variable_queue.erl | 9 ++------- 5 files changed, 7 insertions(+), 27 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 4e11fba7..7b1bf2e2 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1213,8 +1213,4 @@ format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). format_status(_Opt, [_PDict, State = #q{backing_queue = BQ, backing_queue_state = BQS}]) -> - FState = - rabbit_misc:update_and_convert_record( - q_formatted, [{#q.backing_queue_state, BQ:format_status(BQS)}], - State), - [{data, [{"State", FState}]}]. + [{data, [{"State", State#q{backing_queue_state = BQ:format_status(BQS)}}]}]. diff --git a/src/rabbit_mirror_queue_master.erl b/src/rabbit_mirror_queue_master.erl index 4bdb2b41..f8714367 100644 --- a/src/rabbit_mirror_queue_master.erl +++ b/src/rabbit_mirror_queue_master.erl @@ -353,9 +353,7 @@ discard(Msg = #basic_message { id = MsgId }, ChPid, format_status(State = #state { backing_queue = BQ, backing_queue_state = BQS}) -> - rabbit_misc:update_and_convert_record( - state_formatted, [{#state.backing_queue_state, BQ:format_status(BQS)}], - State). + State #state { backing_queue_state = BQ:format_status(BQS) }. %% --------------------------------------------------------------------------- %% Other exported functions diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index db55553c..ecdf7ce9 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -320,11 +320,8 @@ format_message_queue(Opt, MQ) -> rabbit_misc:format_message_queue(Opt, MQ). format_status(_Opt, [_PDict, State = #state { backing_queue = BQ, backing_queue_state = BQS }]) -> - FState = - rabbit_misc:update_and_convert_record( - state_formatted, - [{#state.backing_queue_state, BQ:format_status(BQS)}], State), - [{data, [{"State", FState}]}]. + [{data, [{"State", State #state { + backing_queue_state = BQ:format_status(BQS) }}]}]. %% --------------------------------------------------------------------------- %% GM diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index bfbc078c..d47041d6 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -52,7 +52,7 @@ -export([ntoa/1, ntoab/1]). -export([is_process_alive/1]). -export([pget/2, pget/3, pget_or_die/2]). --export([format_message_queue/2, update_and_convert_record/3]). +-export([format_message_queue/2]). -export([append_rpc_all_nodes/4]). %%---------------------------------------------------------------------------- @@ -190,8 +190,6 @@ -spec(pget/3 :: (term(), [term()], term()) -> term()). -spec(pget_or_die/2 :: (term(), [term()]) -> term() | no_return()). -spec(format_message_queue/2 :: (any(), priority_queue:q()) -> term()). --spec(update_and_convert_record/3 :: (atom(), [{non_neg_integer(), any()}], - tuple()) -> tuple()). -spec(append_rpc_all_nodes/4 :: ([node()], atom(), atom(), [any()]) -> [any()]). -endif. @@ -802,10 +800,6 @@ format_message_queue_entry(V) when is_tuple(V) -> format_message_queue_entry(_V) -> '_'. -update_and_convert_record(NewRecordName, PosValList, Record) -> - lists:foldl(fun ({Pos, Val}, Tuple) -> setelement(Pos, Tuple, Val) end, - setelement(1, Record, NewRecordName), PosValList). - append_rpc_all_nodes(Nodes, M, F, A) -> {ResL, _} = rpc:multicall(Nodes, M, F, A), lists:append([case Res of diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 5376c2a9..b8ce7de3 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -732,13 +732,8 @@ is_duplicate(_Msg, State) -> {false, State}. discard(_Msg, _ChPid, State) -> State. -format_status(State = #vqstate{q1 = Q1, - q2 = Q2, - q3 = Q3, - q4 = Q4}) -> - rabbit_misc:update_and_convert_record( - vqstate_formatted, [{#vqstate.q1, format_queue(Q1)}, - {#vqstate.q4, format_queue(Q4)}], State). +format_status(State = #vqstate { q1 = Q1, q4 = Q4 }) -> + State #vqstate { q1 = format_queue(Q1), q4 = format_queue(Q4) }. %%---------------------------------------------------------------------------- %% Minor helpers -- cgit v1.2.1 From b1397be511a622da201003ed315cc6364361435a Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Wed, 28 Sep 2011 23:26:42 +0100 Subject: keep queues as queues --- src/rabbit_variable_queue.erl | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index b8ce7de3..b41817d6 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -784,7 +784,9 @@ gb_sets_maybe_insert(false, _Val, Set) -> Set; gb_sets_maybe_insert(true, Val, Set) -> gb_sets:add(Val, Set). format_queue(Q) -> - [format_msg_status(MsgStatus) || MsgStatus <- queue:to_list(Q)]. + rabbit_misc:queue_fold( + fun (MsgStatus, Q1) -> queue:in(format_msg_status(MsgStatus), Q1) end, + queue:new()). format_msg_status(MsgStatus = #msg_status { msg = undefined }) -> MsgStatus; format_msg_status(MsgStatus) -> setelement(#msg_status.msg, MsgStatus, '_'). -- cgit v1.2.1 From aaed3eafba073901cee4283e6910435046b6bc37 Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Sun, 2 Oct 2011 13:50:32 +0100 Subject: Some code, that doesn't especially work, and certainly doesn't make things faster. --- src/rabbit.erl | 6 ++ src/rabbit_limiter.erl | 220 ++++++++++++++++++++++++++++++++++++------------- 2 files changed, 171 insertions(+), 55 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 47bc4433..5c504def 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -119,6 +119,12 @@ {requires, kernel_ready}, {enables, core_initialized}]}). +-rabbit_boot_step({rabbit_limiter, + [{description, "limiter"}, + {mfa, {rabbit_limiter, start, []}}, + {requires, kernel_ready}, + {enables, core_initialized}]}). + -rabbit_boot_step({core_initialized, [{description, "core initialized"}, {requires, kernel_ready}]}). diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index 8a08d4b6..7744ec62 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -25,6 +25,8 @@ -export([limit/2, can_send/3, ack/2, register/2, unregister/2]). -export([get_limit/1, block/1, unblock/1, is_blocked/1]). +-export([start/0]). + %%---------------------------------------------------------------------------- -record(token, {pid, enabled}). @@ -55,19 +57,33 @@ %%---------------------------------------------------------------------------- --record(lim, {prefetch_count = 0, - ch_pid, - blocked = false, - queues = orddict:new(), % QPid -> {MonitorRef, Notify} - volume = 0}). +-record(lim, {ch_pid, + queues = orddict:new()}). % QPid -> {MonitorRef, Notify} %% 'Notify' is a boolean that indicates whether a queue should be %% notified of a change in the limit or volume that may allow it to %% deliver more messages via the limiter's channel. +-define(BLOCKED, 2). +-define(VOLUME, 3). +-define(PREFETCH, 4). +-define(LOCK, 5). + +-define(TRUE, 1). +-define(FALSE, 0). +-define(ID, 0). + +-define(IS_BLOCKED(X), X == ?TRUE). + +-define(TABLE, ?MODULE). + %%---------------------------------------------------------------------------- %% API %%---------------------------------------------------------------------------- +start() -> + ets:new(?TABLE, [public, set, named_table]), + ok. + start_link() -> gen_server2:start_link(?MODULE, [], []). make_token() -> make_token(undefined). @@ -88,6 +104,9 @@ limit(Limiter, PrefetchCount) -> %% breaching a limit. Note that we don't use maybe_call here in order %% to avoid always going through with_exit_handler/2, even when the %% limiter is disabled. +can_send(#token{pid = Pid, enabled = true}, QPid, AckRequired) + when node(Pid) =:= node() -> + can_send2(Pid, QPid, AckRequired); can_send(#token{pid = Pid, enabled = true}, QPid, AckRequired) -> rabbit_misc:with_exit_handler( fun () -> true end, @@ -101,7 +120,7 @@ can_send(_, _, _) -> %% consumer ack(Limiter, Count) -> maybe_cast(Limiter, {ack, Count}). -register(Limiter, QPid) -> maybe_cast(Limiter, {register, QPid}). +register(Limiter, QPid) -> maybe_call(Limiter, {register, QPid}, ok). unregister(Limiter, QPid) -> maybe_cast(Limiter, {unregister, QPid}). @@ -119,33 +138,102 @@ unblock(Limiter) -> is_blocked(Limiter) -> maybe_call(Limiter, is_blocked, false). +maybe_call(#token{pid = Pid, enabled = true}, Call, _Default) -> + gen_server2:call(Pid, Call, infinity); +maybe_call(_, _Call, Default) -> + Default. + +maybe_cast(#token{pid = Pid, enabled = true}, Cast) -> + gen_server2:cast(Pid, Cast); +maybe_cast(_, _Call) -> + ok. + %%---------------------------------------------------------------------------- %% gen_server callbacks %%---------------------------------------------------------------------------- init([]) -> + true = ets:insert_new(?TABLE, {self(), ?FALSE, 0, 0, ?FALSE}), {ok, #lim{}}. prioritise_call(get_limit, _From, _State) -> 9; prioritise_call(_Msg, _From, _State) -> 0. -handle_call({can_send, QPid, _AckRequired}, _From, - State = #lim{blocked = true}) -> - {reply, false, limit_queue(QPid, State)}; -handle_call({can_send, QPid, AckRequired}, _From, - State = #lim{volume = Volume}) -> - case limit_reached(State) of - true -> {reply, false, limit_queue(QPid, State)}; - false -> {reply, true, State#lim{volume = if AckRequired -> Volume + 1; - true -> Volume - end}} +can_send2(LimPid, QPid, true) -> + with_lock( + LimPid, + fun () -> + [Blocked, OldVolume, _NewVolume, Prefetch] = + ets:update_counter(?TABLE, LimPid, + [{?BLOCKED, ?ID}, + {?VOLUME, 0}, + {?VOLUME, 1}, + {?PREFETCH, 0}]), + case ?IS_BLOCKED(Blocked) orelse limit_reached(Prefetch, OldVolume) of + true -> + gen_server2:cast(LimPid, {limit_queue, QPid}), + ets:update_counter(?TABLE, LimPid, {?VOLUME, -1}), + false; + false -> + true + end + end); +can_send2(LimPid, QPid, false) -> + [{Blocked, Volume, Prefetch}] = + with_lock(LimPid, fun () -> ets:lookup(?TABLE, LimPid) end), + case ?IS_BLOCKED(Blocked) orelse limit_reached(Prefetch, Volume) of + true -> gen_server2:cast(LimPid, {limit_queue, QPid}), + false; + false -> true + end. + +can_send1(QPid, true, State) -> + case with_lock( + self(), + fun () -> + [Blocked, OldVolume, _NewVolume, Prefetch] = + ets:update_counter(?TABLE, self(), + [{?BLOCKED, ?ID}, + {?VOLUME, 0}, + {?VOLUME, 1}, + {?PREFETCH, 0}]), + case ?IS_BLOCKED(Blocked) orelse limit_reached(Prefetch, OldVolume) of + true -> ets:update_counter(?TABLE, self(), {?VOLUME, -1}), + false; + false -> true + end + end) of + false -> {reply, false, limit_queue(QPid, State)}; + true -> {reply, true, State} end; +can_send1(QPid, false, State) -> + [{Blocked, Volume, Prefetch}] = + with_lock(self(), fun () -> ets:lookup(?TABLE, self()) end), + case ?IS_BLOCKED(Blocked) orelse limit_reached(Prefetch, Volume) of + true -> {reply, false, limit_queue(QPid, State)}; + false -> {reply, true, State} + end. + +handle_call({can_send, QPid, AckRequired}, _From, State) -> + can_send1(QPid, AckRequired, State); -handle_call(get_limit, _From, State = #lim{prefetch_count = PrefetchCount}) -> - {reply, PrefetchCount, State}; +handle_call(get_limit, _From, State) -> + [{_Blocked, _Volume, Prefetch}] = + with_lock(self(), fun () -> ets:lookup(?TABLE, self()) end), + {reply, Prefetch, State}; handle_call({limit, PrefetchCount, Token}, _From, State) -> - case maybe_notify(State, State#lim{prefetch_count = PrefetchCount}) of + [Blocked, Volume, OldPrefetch, PrefetchCount] = + with_lock(self(), + fun () -> + ets:update_counter(?TABLE, self(), + [{?BLOCKED, ?ID}, + {?VOLUME, 0}, + {?PREFETCH, 0}, + {?PREFETCH, 1, 0, PrefetchCount}]) + end), + case maybe_notify({Blocked, Volume, OldPrefetch}, + {Blocked, Volume, PrefetchCount}, State) of {cont, State1} -> {reply, ok, State1}; {stop, State1} -> @@ -153,10 +241,22 @@ handle_call({limit, PrefetchCount, Token}, _From, State) -> end; handle_call(block, _From, State) -> - {reply, ok, State#lim{blocked = true}}; + true = with_lock( + self(), fun () -> ets:update_element(?TABLE, self(), {?BLOCKED, ?TRUE}) end), + {reply, ok, State}; handle_call({unblock, Token}, _From, State) -> - case maybe_notify(State, State#lim{blocked = false}) of + [OldBlocked, NewBlocked, Volume, Prefetch] = + with_lock(self(), + fun () -> + ets:update_counter(?TABLE, self(), + [{?BLOCKED, ?ID}, + {?BLOCKED, -?TRUE, ?FALSE, ?FALSE}, + {?VOLUME, 0}, + {?PREFETCH, 0}]) + end), + case maybe_notify({OldBlocked, Volume, Prefetch}, + {NewBlocked, Volume, Prefetch}, State) of {cont, State1} -> {reply, ok, State1}; {stop, State1} -> @@ -164,23 +264,34 @@ handle_call({unblock, Token}, _From, State) -> end; handle_call(is_blocked, _From, State) -> - {reply, blocked(State), State}; + [{Blocked, _Volume, _Prefetch}] = + with_lock(self(), fun () -> ets:lookup(?TABLE, self()) end), + {reply, ?IS_BLOCKED(Blocked), State}; handle_call({enable, Token, Channel, Volume}, _From, State) -> - {reply, Token#token{enabled = true}, - State#lim{ch_pid = Channel, volume = Volume}}; + true = with_lock( + self(), fun () -> ets:update_element(?TABLE, self(), {?VOLUME, Volume}) end), + {reply, Token#token{enabled = true}, State#lim{ch_pid = Channel}}; handle_call({disable, Token}, _From, State) -> - {reply, Token#token{enabled = false}, State}. - -handle_cast({ack, Count}, State = #lim{volume = Volume}) -> - NewVolume = if Volume == 0 -> 0; - true -> Volume - Count - end, - {cont, State1} = maybe_notify(State, State#lim{volume = NewVolume}), + {reply, Token#token{enabled = false}, State}; + +handle_call({register, QPid}, _From, State) -> + {reply, ok, remember_queue(QPid, State)}. + +handle_cast({ack, Count}, State) -> + [Blocked, OldVolume, NewVolume, Prefetch] = R = + with_lock(self(), fun () -> ets:update_counter(?TABLE, self(), + [{?BLOCKED, ?ID}, + {?VOLUME, 0}, + {?VOLUME, -Count, 0, 0}, + {?PREFETCH, 0}]) end), + {cont, State1} = maybe_notify({Blocked, OldVolume, Prefetch}, + {Blocked, NewVolume, Prefetch}, + State), {noreply, State1}; -handle_cast({register, QPid}, State) -> - {noreply, remember_queue(QPid, State)}; +handle_cast({limit_queue, QPid}, State) -> + {noreply, limit_queue(QPid, State)}; handle_cast({unregister, QPid}, State) -> {noreply, forget_queue(QPid, State)}. @@ -189,6 +300,7 @@ handle_info({'DOWN', _MonitorRef, _Type, QPid, _Info}, State) -> {noreply, forget_queue(QPid, State)}. terminate(_, _) -> + true = ets:delete(?TABLE, self()), ok. code_change(_, State, _) -> @@ -198,31 +310,21 @@ code_change(_, State, _) -> %% Internal plumbing %%---------------------------------------------------------------------------- -maybe_notify(OldState, NewState) -> - case (limit_reached(OldState) orelse blocked(OldState)) andalso - not (limit_reached(NewState) orelse blocked(NewState)) of - true -> NewState1 = notify_queues(NewState), - {case NewState1#lim.prefetch_count of +maybe_notify({OldBlocked, OldVolume, OldPrefetch}, + {NewBlocked, NewVolume, NewPrefetch}, State) -> + case (limit_reached(OldPrefetch, OldVolume) orelse ?IS_BLOCKED(OldBlocked)) andalso + not (limit_reached(NewPrefetch, NewVolume) orelse ?IS_BLOCKED(NewBlocked)) of + true -> {case NewPrefetch of 0 -> stop; _ -> cont - end, NewState1}; - false -> {cont, NewState} + end, notify_queues(State)}; + false -> {cont, State} end. -maybe_call(#token{pid = Pid, enabled = true}, Call, _Default) -> - gen_server2:call(Pid, Call, infinity); -maybe_call(_, _Call, Default) -> - Default. - -maybe_cast(#token{pid = Pid, enabled = true}, Cast) -> - gen_server2:cast(Pid, Cast); -maybe_cast(_, _Call) -> - ok. - -limit_reached(#lim{prefetch_count = Limit, volume = Volume}) -> - Limit =/= 0 andalso Volume >= Limit. - -blocked(#lim{blocked = Blocked}) -> Blocked. +limit_reached(0, _Volume) -> + false; +limit_reached(Prefetch, Volume) -> + Volume >= Prefetch. remember_queue(QPid, State = #lim{queues = Queues}) -> case orddict:is_key(QPid, Queues) of @@ -251,7 +353,6 @@ notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> end, {[], Queues}, Queues), case length(QList) of 0 -> ok; - 1 -> ok = rabbit_amqqueue:unblock(hd(QList), ChPid); %% common case L -> %% We randomly vary the position of queues in the list, %% thus ensuring that each queue has an equal chance of @@ -262,3 +363,12 @@ notify_queues(State = #lim{ch_pid = ChPid, queues = Queues}) -> ok end, State#lim{queues = NewQueues}. + +with_lock(LimPid, Fun) -> + case ets:update_counter(?TABLE, LimPid, {?LOCK, ?TRUE}) of + ?TRUE -> R = Fun(), + ets:update_counter(?TABLE, LimPid, {?LOCK, -?TRUE}), + R; + _ -> ets:update_counter(?TABLE, LimPid, {?LOCK, -?TRUE}), + with_lock(LimPid, Fun) + end. -- cgit v1.2.1 From 0d6fd0e244e18bde182a4ad50bb940a2ce611328 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 24 Oct 2011 11:09:21 +0100 Subject: start networking kernel manually ALso, move print_error/2 to rabbit_misc since it's now used by control, plugins and prelaunch. We need to start epmd manually now (because net_kernel:start/1 fails otherwise). Running "epmd -daemon" repeatedly seems to have no adverse effects. --- scripts/rabbitmq-server | 4 +++- scripts/rabbitmq-server.bat | 9 ++++++++- src/rabbit_control.erl | 23 +++++++++++------------ src/rabbit_misc.erl | 5 ++++- src/rabbit_plugins.erl | 12 +++++------- src/rabbit_prelaunch.erl | 7 +++++++ 6 files changed, 38 insertions(+), 22 deletions(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 1831f876..805b5028 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -74,6 +74,9 @@ case "$(uname -s)" in ;; esac +epmd -daemon || exit 1 +# epmd is now running + RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then if erl \ @@ -81,7 +84,6 @@ if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then -noinput \ -hidden \ -s rabbit_prelaunch \ - -sname rabbitmqprelaunch$$ \ -extra "$RABBITMQ_ENABLED_PLUGINS_FILE" "$RABBITMQ_PLUGINS_DIR" "${RABBITMQ_PLUGINS_EXPAND_DIR}" "${RABBITMQ_NODENAME}" then RABBITMQ_BOOT_FILE="${RABBITMQ_PLUGINS_EXPAND_DIR}/rabbit" diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index c27b418a..9bdc3dbd 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,11 +89,18 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin +"!ERLANG_HOME!\bin\epmd.exe" ^ +-daemon + +if ERRORLEVEL 1 ( + exit /B 1 +) +rem epmd is now running + "!ERLANG_HOME!\bin\erl.exe" ^ -pa "!RABBITMQ_EBIN_ROOT!" ^ -noinput -hidden ^ -s rabbit_prelaunch ^ --sname rabbitmqprelaunch!RANDOM! ^ -extra "!RABBITMQ_ENABLED_PLUGINS_FILE:\=/!" ^ "!RABBITMQ_PLUGINS_DIR:\=/!" ^ "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 905e4fd0..f3511f96 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -88,29 +88,29 @@ start() -> end, rabbit_misc:quit(0); {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error("invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]), + rabbit_misc:print_error( + "invalid command '~s'", + [string:join([atom_to_list(Command) | Args], " ")]), usage(); {'EXIT', {badarg, _}} -> - print_error("invalid parameter: ~p", [Args]), + rabbit_misc:print_error("invalid parameter: ~p", [Args]), usage(); {error, Reason} -> - print_error("~p", [Reason]), + rabbit_misc:print_error("~p", [Reason]), rabbit_misc:quit(2); {badrpc, {'EXIT', Reason}} -> - print_error("~p", [Reason]), + rabbit_misc:print_error("~p", [Reason]), rabbit_misc:quit(2); {badrpc, Reason} -> - print_error("unable to connect to node ~w: ~w", [Node, Reason]), + rabbit_misc:print_error("unable to connect to node ~w: ~w", + [Node, Reason]), print_badrpc_diagnostics(Node), rabbit_misc:quit(2); Other -> - print_error("~p", [Other]), + rabbit_misc:print_error("~p", [Other]), rabbit_misc:quit(2) end. -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - print_report(Node, {Descr, Module, InfoFun, KeysFun}) -> io:format("~s:~n", [Descr]), print_report0(Node, {Module, InfoFun, KeysFun}, []). @@ -128,10 +128,9 @@ print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> end, io:nl(). -print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - print_badrpc_diagnostics(Node) -> - [fmt_stderr(Fmt, Args) || {Fmt, Args} <- diagnostics(Node)]. + [rabbit_misc:format_stderr(Fmt ++ "~n", Args) || + {Fmt, Args} <- diagnostics(Node)]. diagnostics(Node) -> {_NodeName, NodeHost} = rabbit_misc:nodeparts(Node), diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index dcfbcaff..52ac54f4 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -38,7 +38,7 @@ -export([upmap/2, map_in_order/2]). -export([table_filter/3]). -export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). --export([format_stderr/2, with_local_io/1, local_info_msg/2]). +-export([format_stderr/2, print_error/2, with_local_io/1, local_info_msg/2]). -export([start_applications/1, stop_applications/1]). -export([unfold/2, ceil/1, queue_fold/3]). -export([sort_field_table/1]). @@ -550,6 +550,9 @@ format_stderr(Fmt, Args) -> end, ok. +print_error(Format, Args) -> + rabbit_misc:format_stderr("Error: " ++ Format ++ "~n", Args). + %% Execute Fun using the IO system of the local node (i.e. the node on %% which the code is executing). with_local_io(Fun) -> diff --git a/src/rabbit_plugins.erl b/src/rabbit_plugins.erl index b06bcd83..9a653a1f 100644 --- a/src/rabbit_plugins.erl +++ b/src/rabbit_plugins.erl @@ -60,23 +60,21 @@ start() -> ok -> rabbit_misc:quit(0); {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> - print_error("invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]), + rabbit_misc:print_error( + "invalid command '~s'", + [string:join([atom_to_list(Command) | Args], " ")]), usage(); {error, Reason} -> - print_error("~p", [Reason]), + rabbit_misc:print_error("~p", [Reason]), rabbit_misc:quit(2); Other -> - print_error("~p", [Other]), + rabbit_misc:print_error("~p", [Other]), rabbit_misc:quit(2) end. stop() -> ok. -print_error(Format, Args) -> - rabbit_misc:format_stderr("Error: " ++ Format ++ "~n", Args). - usage() -> io:format("~s", [rabbit_plugins_usage:usage()]), rabbit_misc:quit(1). diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl index d34ed44a..f0c8e75a 100644 --- a/src/rabbit_prelaunch.erl +++ b/src/rabbit_prelaunch.erl @@ -40,6 +40,13 @@ %%---------------------------------------------------------------------------- start() -> + ThisNode = rabbit_misc:makenode("rabbitmqprelaunch" ++ os:getpid()), + case net_kernel:start([ThisNode, shortnames]) of + {ok, _} -> ok; + {error, Reason2} -> rabbit_misc:print_error("~p", [Reason2]), + rabbit_misc:quit(1) + end, + io:format("Activating RabbitMQ plugins ...~n"), %% Determine our various directories -- cgit v1.2.1 From 2b7f2f7f2587fa3aa8e02b5d23dfd5c549b49f2f Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 24 Oct 2011 11:34:36 +0100 Subject: catch net_kernel errors in ctl as well And always start the new node on the current hostname; otherwise, it gets started on 'nohost'. --- scripts/rabbitmqctl | 4 +++- scripts/rabbitmqctl.bat | 10 +++++++++- src/rabbit_control.erl | 2 ++ src/rabbit_misc.erl | 11 +++++++++++ src/rabbit_prelaunch.erl | 7 +------ 5 files changed, 26 insertions(+), 8 deletions(-) mode change 100644 => 100755 scripts/rabbitmqctl.bat diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl index 9a11c3b3..9ed61fd3 100755 --- a/scripts/rabbitmqctl +++ b/scripts/rabbitmqctl @@ -20,12 +20,14 @@ [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} [ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} +epmd -daemon || exit 1 +# epmd is now running + exec erl \ -pa "${RABBITMQ_HOME}/ebin" \ -noinput \ -hidden \ ${RABBITMQ_CTL_ERL_ARGS} \ - -sname rabbitmqctl$$ \ -s rabbit_control \ -nodename $RABBITMQ_NODENAME \ -extra "$@" diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat old mode 100644 new mode 100755 index a74a91fd..58540a81 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,7 +43,15 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! +"!ERLANG_HOME!\bin\epmd.exe" ^ +-daemon + +if ERRORLEVEL 1 ( + exit /B 1 +) +rem epmd is now running + +"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! endlocal endlocal diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index f3511f96..055a1e4c 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -56,6 +56,8 @@ %%---------------------------------------------------------------------------- start() -> + rabbit_misc:start_net_kernel("rabbitmqctl"), + {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), {[Command0 | Args], Opts} = case rabbit_misc:get_options([{flag, ?QUIET_OPT}, diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 52ac54f4..0e97e112 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -40,6 +40,7 @@ -export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). -export([format_stderr/2, print_error/2, with_local_io/1, local_info_msg/2]). -export([start_applications/1, stop_applications/1]). +-export([start_net_kernel/1]). -export([unfold/2, ceil/1, queue_fold/3]). -export([sort_field_table/1]). -export([pid_to_string/1, string_to_pid/1]). @@ -598,6 +599,16 @@ stop_applications(Apps) -> cannot_stop_application, Apps). +start_net_kernel(NodeNamePrefix) -> + {ok, Hostname} = inet:gethostname(), + MyNodeName = makenode({NodeNamePrefix ++ os:getpid(), Hostname}), + case net_kernel:start([MyNodeName, shortnames]) of + {ok, _} -> ok; + {error, Reason2} -> + print_error("Networking failed to start: ~p", [Reason2]), + quit(1) + end. + unfold(Fun, Init) -> unfold(Fun, [], Init). diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl index f0c8e75a..4887f452 100644 --- a/src/rabbit_prelaunch.erl +++ b/src/rabbit_prelaunch.erl @@ -40,12 +40,7 @@ %%---------------------------------------------------------------------------- start() -> - ThisNode = rabbit_misc:makenode("rabbitmqprelaunch" ++ os:getpid()), - case net_kernel:start([ThisNode, shortnames]) of - {ok, _} -> ok; - {error, Reason2} -> rabbit_misc:print_error("~p", [Reason2]), - rabbit_misc:quit(1) - end, + rabbit_misc:start_net_kernel("rabbitmqprelaunch"), io:format("Activating RabbitMQ plugins ...~n"), -- cgit v1.2.1 From 3a087d8533c7c91a65be421934698ab429d2307e Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 24 Oct 2011 11:44:52 +0100 Subject: plugins should not be a named node --- scripts/rabbitmq-plugins | 1 - scripts/rabbitmq-plugins.bat | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/scripts/rabbitmq-plugins b/scripts/rabbitmq-plugins index 4c6cb1fa..16eb3d72 100755 --- a/scripts/rabbitmq-plugins +++ b/scripts/rabbitmq-plugins @@ -27,7 +27,6 @@ exec erl \ -pa "${RABBITMQ_HOME}/ebin" \ -noinput \ -hidden \ - -sname rabbitmq-plugins$$ \ -s rabbit_plugins \ -enabled_plugins_file "$RABBITMQ_ENABLED_PLUGINS_FILE" \ -plugins_dist_dir "$RABBITMQ_PLUGINS_DIR" \ diff --git a/scripts/rabbitmq-plugins.bat b/scripts/rabbitmq-plugins.bat index ca874a7f..efeeff4c 100755 --- a/scripts/rabbitmq-plugins.bat +++ b/scripts/rabbitmq-plugins.bat @@ -45,7 +45,7 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden -sname rabbitmq-plugins!RANDOM! -s rabbit_plugins -enabled_plugins_file "!RABBITMQ_ENABLED_PLUGINS_FILE!" -plugins_dist_dir "!RABBITMQ_PLUGINS_DIR:\=/!" -extra !STAR! +"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden -s rabbit_plugins -enabled_plugins_file "!RABBITMQ_ENABLED_PLUGINS_FILE!" -plugins_dist_dir "!RABBITMQ_PLUGINS_DIR:\=/!" -extra !STAR! endlocal endlocal -- cgit v1.2.1 From 99e0c07536e64b7de811bd9ad9e754af0d78c22f Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 24 Oct 2011 13:34:12 +0100 Subject: add special case for the only error I could find There are two things that may break network-wise when starting rabbit: epmd may fail to start for some reason, net_kernel may fail to start for some reason. We're now starting epmd manually, because net_kernel needs it; also, there doesn't seem to be a way to start it from Erlang, so we have to start it from the shell scripts. Of course, running it in daemon mode hides any errors it may encounter completely; i.e. there's no way to tell if "epmd -daemon" actually started the daemon. There isn't any documentation for what errors net_kernel:start/1 may return, so we print a vague error message and exit in case of an error. There's also a bit of special handling for the case in which epmd didn't start (detected because something deep down in Erlang fails to start). --- src/rabbit_misc.erl | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 0e97e112..cc7f46fa 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -552,7 +552,7 @@ format_stderr(Fmt, Args) -> ok. print_error(Format, Args) -> - rabbit_misc:format_stderr("Error: " ++ Format ++ "~n", Args). + format_stderr("Error: " ++ Format ++ "~n", Args). %% Execute Fun using the IO system of the local node (i.e. the node on %% which the code is executing). @@ -603,9 +603,15 @@ start_net_kernel(NodeNamePrefix) -> {ok, Hostname} = inet:gethostname(), MyNodeName = makenode({NodeNamePrefix ++ os:getpid(), Hostname}), case net_kernel:start([MyNodeName, shortnames]) of - {ok, _} -> ok; - {error, Reason2} -> - print_error("Networking failed to start: ~p", [Reason2]), + {ok, _} -> + ok; + {error, Reason = {shutdown, {child, undefined, + net_sup_dynamic, _, _, _, _, _}}} -> + print_error("epmd could not be started: ~p", [Reason]), + format_stderr("Check you network setup (firewall, etc.)~n", []), + quit(1); + {error, Reason} -> + print_error("Networking failed to start: ~p", [Reason]), quit(1) end. -- cgit v1.2.1 From 1e6c1e2447527a2b5da900f7ebadfcae2404dada Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 25 Oct 2011 14:23:02 +0100 Subject: extend `ctl wait` to wait for a pid to die --- docs/rabbitmqctl.1.xml | 8 +++++++- src/rabbit_control.erl | 15 +++++++++++++++ 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/docs/rabbitmqctl.1.xml b/docs/rabbitmqctl.1.xml index 662a36c7..f21888bd 100644 --- a/docs/rabbitmqctl.1.xml +++ b/docs/rabbitmqctl.1.xml @@ -103,7 +103,7 @@ - stop + stop pid_file Stops the Erlang node on which RabbitMQ is running. To @@ -111,6 +111,12 @@ the Server in the installation guide. + + If a is specified, also waits + for the process specified there to terminate. See the + description of the command below + for details on this file. + For example: rabbitmqctl stop diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 905e4fd0..a255ac24 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -161,6 +161,10 @@ usage() -> %%---------------------------------------------------------------------------- +action(stop, Node, [PidFile], _Opts, Inform) -> + action(stop, Node, [], _Opts, Inform), + wait_for_process_death(PidFile); + action(stop, Node, [], _Opts, Inform) -> Inform("Stopping and halting node ~p", [Node]), call(Node, {rabbit, stop_and_halt, []}); @@ -376,6 +380,17 @@ wait_for_application(Node, Pid) -> false -> {error, process_not_running} end. +wait_for_process_death(PidFile) -> + Pid = wait_and_read_pid_file(PidFile), + wait_for_process_death1(Pid). + +wait_for_process_death1(Pid) -> + case process_up(Pid) of + true -> timer:sleep(1000), + wait_for_process_death1(Pid); + false -> ok + end. + wait_and_read_pid_file(PidFile) -> case file:read_file(PidFile) of {ok, Bin} -> string:strip(binary_to_list(Bin), right, $\n); -- cgit v1.2.1 From d7a8b2ba0e2c2d89a9c9ebc17fbfa2fd3d24be95 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 25 Oct 2011 14:26:04 +0100 Subject: init script waits for rabbit to terminate completely --- packaging/common/rabbitmq-server.init | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/packaging/common/rabbitmq-server.init b/packaging/common/rabbitmq-server.init index 15fd5d5b..450cac15 100644 --- a/packaging/common/rabbitmq-server.init +++ b/packaging/common/rabbitmq-server.init @@ -81,7 +81,7 @@ stop_rabbitmq () { status_rabbitmq quiet if [ $RETVAL = 0 ] ; then set +e - $CONTROL stop > ${INIT_LOG_DIR}/shutdown_log 2> ${INIT_LOG_DIR}/shutdown_err + $CONTROL stop ${PID_FILE} > ${INIT_LOG_DIR}/shutdown_log 2> ${INIT_LOG_DIR}/shutdown_err RETVAL=$? set -e if [ $RETVAL = 0 ] ; then -- cgit v1.2.1 From 48a393c659562880de090604c51d6e7012a1218d Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 25 Oct 2011 14:29:35 +0100 Subject: don't wait forever if the pidfile is missing --- src/rabbit_control.erl | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index a255ac24..cef5fd67 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -381,7 +381,10 @@ wait_for_application(Node, Pid) -> end. wait_for_process_death(PidFile) -> - Pid = wait_and_read_pid_file(PidFile), + Pid = case file:read_file(PidFile) of + {ok, Bin} -> string:strip(binary_to_list(Bin), right, $\n); + {error, _} = E -> exit({error, {could_not_read_pid, E}}) + end, wait_for_process_death1(Pid). wait_for_process_death1(Pid) -> -- cgit v1.2.1 From e65cc9cd22212ce4e4a29945e4ded4a042773f5f Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 25 Oct 2011 15:18:39 +0100 Subject: Better error message. --- src/rabbit_misc.erl | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index cc7f46fa..598a4c66 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -607,8 +607,13 @@ start_net_kernel(NodeNamePrefix) -> ok; {error, Reason = {shutdown, {child, undefined, net_sup_dynamic, _, _, _, _, _}}} -> - print_error("epmd could not be started: ~p", [Reason]), - format_stderr("Check you network setup (firewall, etc.)~n", []), + Port = case os:getenv("ERL_EPMD_PORT") of + false -> 4369; + P -> P + end, + print_error("epmd could not be contacted: ~p", [Reason]), + format_stderr("Check your network setup (in particular " + "check you can contact port ~w).~n", [Port]), quit(1); {error, Reason} -> print_error("Networking failed to start: ~p", [Reason]), -- cgit v1.2.1 From 9b5fd5207a65f925a6c895abf6a47e4f5ad67c4d Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 25 Oct 2011 15:21:03 +0100 Subject: Nicer yet. --- src/rabbit_misc.erl | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 598a4c66..c58e8d26 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -613,7 +613,8 @@ start_net_kernel(NodeNamePrefix) -> end, print_error("epmd could not be contacted: ~p", [Reason]), format_stderr("Check your network setup (in particular " - "check you can contact port ~w).~n", [Port]), + "check you can contact port ~w on localhost).~n", + [Port]), quit(1); {error, Reason} -> print_error("Networking failed to start: ~p", [Reason]), -- cgit v1.2.1 From 7f867086af3a71153f214a22de103a72fa626dac Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 25 Oct 2011 17:25:56 +0100 Subject: I always hate it when Matthias does this to me, but really, these comments tell us little. --- scripts/rabbitmq-server | 1 - scripts/rabbitmq-server.bat | 1 - scripts/rabbitmqctl | 1 - scripts/rabbitmqctl.bat | 1 - 4 files changed, 4 deletions(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 805b5028..11492e2b 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -75,7 +75,6 @@ case "$(uname -s)" in esac epmd -daemon || exit 1 -# epmd is now running RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 9bdc3dbd..e137d6f2 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -95,7 +95,6 @@ set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin if ERRORLEVEL 1 ( exit /B 1 ) -rem epmd is now running "!ERLANG_HOME!\bin\erl.exe" ^ -pa "!RABBITMQ_EBIN_ROOT!" ^ diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl index 9ed61fd3..f4494d0c 100755 --- a/scripts/rabbitmqctl +++ b/scripts/rabbitmqctl @@ -21,7 +21,6 @@ [ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} epmd -daemon || exit 1 -# epmd is now running exec erl \ -pa "${RABBITMQ_HOME}/ebin" \ diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index 58540a81..100e5792 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -49,7 +49,6 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( if ERRORLEVEL 1 ( exit /B 1 ) -rem epmd is now running "!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! -- cgit v1.2.1 From 45bb29cf022bf45ba85f05d6d5e121b042542f23 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 25 Oct 2011 17:26:17 +0100 Subject: I think thisn is clearer if not broken onto two lines. --- scripts/rabbitmq-server.bat | 3 +-- scripts/rabbitmqctl.bat | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index e137d6f2..416385c3 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,8 +89,7 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -"!ERLANG_HOME!\bin\epmd.exe" ^ --daemon +"!ERLANG_HOME!\bin\epmd.exe" -daemon if ERRORLEVEL 1 ( exit /B 1 diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index 100e5792..80d476f7 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,8 +43,7 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -"!ERLANG_HOME!\bin\epmd.exe" ^ --daemon +"!ERLANG_HOME!\bin\epmd.exe" -daemon if ERRORLEVEL 1 ( exit /B 1 -- cgit v1.2.1 From eed4b6537afa7891935b28827dba39197b285301 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 1 Nov 2011 12:24:56 +0000 Subject: start epmd in a uniform way on windows/linux --- scripts/rabbitmq-server | 3 ++- scripts/rabbitmq-server.bat | 3 ++- scripts/rabbitmqctl | 3 ++- scripts/rabbitmqctl.bat | 3 ++- 4 files changed, 8 insertions(+), 4 deletions(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 11492e2b..718c02ab 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -74,7 +74,8 @@ case "$(uname -s)" in ;; esac -epmd -daemon || exit 1 +# Ensures that epmd is running. +erl -sname epmd_primer -noinput -run init stop || exit 1 RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 416385c3..f95d0dca 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,7 +89,8 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -"!ERLANG_HOME!\bin\epmd.exe" -daemon +rem Ensures that epmd is running. +"!ERLANG_HOME!\bin\erl.exe" -sname epmd_primer -noinput -run init stop if ERRORLEVEL 1 ( exit /B 1 diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl index f4494d0c..496e70a0 100755 --- a/scripts/rabbitmqctl +++ b/scripts/rabbitmqctl @@ -20,7 +20,8 @@ [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} [ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} -epmd -daemon || exit 1 +# Ensures that epmd is running. +erl -sname epmd_primer -noinput -run init stop || exit 1 exec erl \ -pa "${RABBITMQ_HOME}/ebin" \ diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index 80d476f7..11698d7a 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,7 +43,8 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -"!ERLANG_HOME!\bin\epmd.exe" -daemon +rem Ensures that epmd is running. +"!ERLANG_HOME!\bin\erl.exe" -sname epmd_primer -noinput -run init stop if ERRORLEVEL 1 ( exit /B 1 -- cgit v1.2.1 From de34eff32d768795895556dc18c3c2c17558feb8 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 1 Nov 2011 12:49:40 +0000 Subject: increase the wait to account for the overhead of starting another distributed node --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 2261fcaa..2238622c 100644 --- a/Makefile +++ b/Makefile @@ -207,7 +207,7 @@ start-background-node: all -rm -f $(RABBITMQ_MNESIA_DIR).pid mkdir -p $(RABBITMQ_MNESIA_DIR) setsid sh -c "$(MAKE) run-background-node > $(RABBITMQ_MNESIA_DIR)/startup_log 2> $(RABBITMQ_MNESIA_DIR)/startup_err" & - sleep 1 + sleep 3 start-rabbit-on-node: all echo "rabbit:start()." | $(ERL_CALL) -- cgit v1.2.1 From 7dfb9c458338f151be0c1c723de951b17d98bd57 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 21 Nov 2011 18:06:36 +0000 Subject: Record the master together with all the slaves --- src/rabbit_amqqueue.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index b3e92b69..96017df8 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -244,7 +244,7 @@ determine_queue_nodes(Args) -> case [list_to_atom(binary_to_list(Node)) || {longstr, Node} <- Nodes] of [Node] -> {Node, undefined}; - [First | Rest] -> {First, Rest} + [First | Rest] -> {First, [First | Rest]} end; {{_Type, <<"all">>}, _} -> {node(), all}; -- cgit v1.2.1 From 0a2e916c490b88a1ac5a22c8e56987a3a470eca7 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 21 Nov 2011 18:44:38 +0000 Subject: Allow comparisons with typeless values like 'undefined' --- src/rabbit_misc.erl | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index dcfbcaff..6bf61b1e 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -250,18 +250,23 @@ assert_args_equivalence(Orig, New, Name, Keys) -> ok. assert_args_equivalence1(Orig, New, Name, Key) -> - case {table_lookup(Orig, Key), table_lookup(New, Key)} of - {Same, Same} -> - ok; - {{OrigType, OrigVal} = Orig1, {NewType, NewVal} = New1} -> - case type_class(OrigType) == type_class(NewType) andalso - OrigVal == NewVal of - true -> ok; - false -> protocol_error(precondition_failed, "inequivalent arg" - " '~s' for ~s: received ~s but current" - " is ~s", - [Key, rs(Name), val(New1), val(Orig1)]) - end + case + case {table_lookup(Orig, Key), table_lookup(New, Key)} of + {Same, Same} -> + ok; + {{OrigType, OrigVal} = Orig1, {NewType, NewVal} = New1} -> + case type_class(OrigType) == type_class(NewType) andalso + OrigVal == NewVal of + true -> ok; + false -> {Orig1, New1} + end; + {_, _} = X -> X + end of + ok -> ok; + {Orig2, New2} -> protocol_error( + precondition_failed, "inequivalent arg '~s' for ~s: " + "received ~s but current is ~s", + [Key, rs(Name), val(Orig2), val(New2)]) end. val(undefined) -> -- cgit v1.2.1 From 77ce50672b4ca4c783a337d2ae6eb54677e8f107 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 24 Nov 2011 13:17:21 +0000 Subject: Remove optimistic sleep(). --- src/mirrored_supervisor_tests.erl | 1 - 1 file changed, 1 deletion(-) diff --git a/src/mirrored_supervisor_tests.erl b/src/mirrored_supervisor_tests.erl index ea0a6908..24ace893 100644 --- a/src/mirrored_supervisor_tests.erl +++ b/src/mirrored_supervisor_tests.erl @@ -202,7 +202,6 @@ with_sups(Fun, Sups) -> Pids = [begin {ok, Pid} = start_sup(Sup), Pid end || Sup <- Sups], Fun(Pids), [kill(Pid) || Pid <- Pids, is_process_alive(Pid)], - timer:sleep(500), passed. start_sup(Spec) -> -- cgit v1.2.1 From 6f186de7a8e2fb66e2e919bd7bd35e79e13ce3d7 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 24 Nov 2011 13:17:57 +0000 Subject: Revert call timeout. --- src/mirrored_supervisor_tests.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/mirrored_supervisor_tests.erl b/src/mirrored_supervisor_tests.erl index 24ace893..ee9c7593 100644 --- a/src/mirrored_supervisor_tests.erl +++ b/src/mirrored_supervisor_tests.erl @@ -244,7 +244,7 @@ inc_group() -> get_group(Group) -> {Group, get(counter)}. -call(Id, Msg) -> call(Id, Msg, 1000, 100). +call(Id, Msg) -> call(Id, Msg, 100, 10). call(Id, Msg, 0, _Decr) -> exit({timeout_waiting_for_server, {Id, Msg}}); -- cgit v1.2.1 From eba749671591df09158115680b2f2496326b7971 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 24 Nov 2011 13:18:28 +0000 Subject: Don't just catch *everything*. --- src/mirrored_supervisor_tests.erl | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/mirrored_supervisor_tests.erl b/src/mirrored_supervisor_tests.erl index ee9c7593..71b8b9b4 100644 --- a/src/mirrored_supervisor_tests.erl +++ b/src/mirrored_supervisor_tests.erl @@ -252,8 +252,9 @@ call(Id, Msg, 0, _Decr) -> call(Id, Msg, MaxDelay, Decr) -> try gen_server:call(Id, Msg, infinity) - catch exit:_ -> timer:sleep(Decr), - call(Id, Msg, MaxDelay - Decr, Decr) + catch exit:{Fail, _} when Fail =:= noproc orelse Fail =:= doooom -> + timer:sleep(Decr), + call(Id, Msg, MaxDelay - Decr, Decr) end. kill(Pid) -> kill(Pid, []). -- cgit v1.2.1 From 37def27619c94bb2aea9a1ddf0714aa3f02337e3 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 24 Nov 2011 13:19:35 +0000 Subject: Come up with a new registered name for the worker process (nearly) every time. There are a couple of instances where this was not trivial to do and I have not done so, but this seems to make the tests vastly more reliable. At least on my workstation ;-) --- src/mirrored_supervisor_tests.erl | 102 +++++++++++++++++++------------------- 1 file changed, 51 insertions(+), 51 deletions(-) diff --git a/src/mirrored_supervisor_tests.erl b/src/mirrored_supervisor_tests.erl index 71b8b9b4..b6505088 100644 --- a/src/mirrored_supervisor_tests.erl +++ b/src/mirrored_supervisor_tests.erl @@ -47,65 +47,65 @@ all_tests() -> %% Simplest test test_migrate() -> - with_sups(fun([A, _]) -> - ?MS:start_child(a, childspec(worker)), - Pid1 = pid_of(worker), + with_sups(fun([A, _], Worker) -> + ?MS:start_child(a, childspec(Worker)), + Pid1 = pid_of(Worker), kill(A, Pid1), - Pid2 = pid_of(worker), + Pid2 = pid_of(Worker), false = (Pid1 =:= Pid2) end, [a, b]). %% Is migration transitive? test_migrate_twice() -> - with_sups(fun([A, B]) -> - ?MS:start_child(a, childspec(worker)), - Pid1 = pid_of(worker), + with_sups(fun([A, B], Worker) -> + ?MS:start_child(a, childspec(Worker)), + Pid1 = pid_of(Worker), kill(A, Pid1), {ok, C} = start_sup(c), - Pid2 = pid_of(worker), + Pid2 = pid_of(Worker), kill(B, Pid2), - Pid3 = pid_of(worker), + Pid3 = pid_of(Worker), false = (Pid1 =:= Pid3), kill(C) end, [a, b]). %% Can't start the same child twice test_already_there() -> - with_sups(fun([_, _]) -> - S = childspec(worker), + with_sups(fun([_, _], Worker) -> + S = childspec(Worker), {ok, Pid} = ?MS:start_child(a, S), {error, {already_started, Pid}} = ?MS:start_child(b, S) end, [a, b]). %% Deleting and restarting should work as per a normal supervisor test_delete_restart() -> - with_sups(fun([_, _]) -> - S = childspec(worker), + with_sups(fun([_, _], Worker) -> + S = childspec(Worker), {ok, Pid1} = ?MS:start_child(a, S), - {error, running} = ?MS:delete_child(a, worker), - ok = ?MS:terminate_child(a, worker), - ok = ?MS:delete_child(a, worker), + {error, running} = ?MS:delete_child(a, Worker), + ok = ?MS:terminate_child(a, Worker), + ok = ?MS:delete_child(a, Worker), {ok, Pid2} = ?MS:start_child(b, S), false = (Pid1 =:= Pid2), - ok = ?MS:terminate_child(b, worker), - {ok, Pid3} = ?MS:restart_child(b, worker), - Pid3 = pid_of(worker), + ok = ?MS:terminate_child(b, Worker), + {ok, Pid3} = ?MS:restart_child(b, Worker), + Pid3 = pid_of(Worker), false = (Pid2 =:= Pid3), - %% Not the same supervisor as the worker is on - ok = ?MS:terminate_child(a, worker), - ok = ?MS:delete_child(a, worker), + %% Not the same supervisor as the Worker is on + ok = ?MS:terminate_child(a, Worker), + ok = ?MS:delete_child(a, Worker), {ok, Pid4} = ?MS:start_child(a, S), false = (Pid3 =:= Pid4) end, [a, b]). test_which_children() -> with_sups( - fun([A, B] = Both) -> - ?MS:start_child(A, childspec(worker)), + fun([A, B] = Both, Worker) -> + ?MS:start_child(A, childspec(Worker)), assert_wc(Both, fun ([C]) -> true = is_pid(wc_pid(C)) end), - ok = ?MS:terminate_child(a, worker), + ok = ?MS:terminate_child(a, Worker), assert_wc(Both, fun ([C]) -> undefined = wc_pid(C) end), - {ok, _} = ?MS:restart_child(a, worker), + {ok, _} = ?MS:restart_child(a, Worker), assert_wc(Both, fun ([C]) -> true = is_pid(wc_pid(C)) end), ?MS:start_child(B, childspec(worker2)), assert_wc(Both, fun (C) -> 2 = length(C) end) @@ -115,23 +115,23 @@ assert_wc(Sups, Fun) -> [Fun(?MS:which_children(Sup)) || Sup <- Sups]. wc_pid(Child) -> - {worker, Pid, worker, [mirrored_supervisor_tests]} = Child, + {Worker, Pid, worker, [mirrored_supervisor_tests]} = Child, Pid. %% Not all the members of the group should actually do the failover test_large_group() -> - with_sups(fun([A, _, _, _]) -> - ?MS:start_child(a, childspec(worker)), - Pid1 = pid_of(worker), + with_sups(fun([A, _, _, _], Worker) -> + ?MS:start_child(a, childspec(Worker)), + Pid1 = pid_of(Worker), kill(A, Pid1), - Pid2 = pid_of(worker), + Pid2 = pid_of(Worker), false = (Pid1 =:= Pid2) end, [a, b, c, d]). %% Do childspecs work when returned from init? test_childspecs_at_init() -> S = childspec(worker), - with_sups(fun([A, _]) -> + with_sups(fun([A, _], _Worker) -> Pid1 = pid_of(worker), kill(A, Pid1), Pid2 = pid_of(worker), @@ -139,11 +139,11 @@ test_childspecs_at_init() -> end, [{a, [S]}, {b, [S]}]). test_anonymous_supervisors() -> - with_sups(fun([A, _B]) -> - ?MS:start_child(A, childspec(worker)), - Pid1 = pid_of(worker), + with_sups(fun([A, _B], Worker) -> + ?MS:start_child(A, childspec(Worker)), + Pid1 = pid_of(Worker), kill(A, Pid1), - Pid2 = pid_of(worker), + Pid2 = pid_of(Worker), false = (Pid1 =:= Pid2) end, [anon, anon]). @@ -153,10 +153,10 @@ test_anonymous_supervisors() -> %% under the supervisor called 'evil'. It should not migrate to %% 'good' and survive, rather the whole group should go away. test_no_migration_on_shutdown() -> - with_sups(fun([Evil, _]) -> - ?MS:start_child(Evil, childspec(worker)), + with_sups(fun([Evil, _], Worker) -> + ?MS:start_child(Evil, childspec(Worker)), try - call(worker, ping), + call(Worker, ping), exit(worker_should_not_have_migrated) catch exit:{timeout_waiting_for_server, _} -> ok @@ -164,24 +164,24 @@ test_no_migration_on_shutdown() -> end, [evil, good]). test_start_idempotence() -> - with_sups(fun([_]) -> - CS = childspec(worker), + with_sups(fun([_], Worker) -> + CS = childspec(Worker), {ok, Pid} = ?MS:start_child(a, CS), {error, {already_started, Pid}} = ?MS:start_child(a, CS), - ?MS:terminate_child(a, worker), + ?MS:terminate_child(a, Worker), {error, already_present} = ?MS:start_child(a, CS) end, [a]). test_unsupported() -> try - ?MS:start_link({global, foo}, get_group(group), ?MODULE, + ?MS:start_link({global, foo}, gen_name(group), ?MODULE, {sup, one_for_one, []}), exit(no_global) catch error:badarg -> ok end, try - ?MS:start_link({local, foo}, get_group(group), ?MODULE, + ?MS:start_link({local, foo}, gen_name(group), ?MODULE, {sup, simple_one_for_one, []}), exit(no_sofo) catch error:badarg -> @@ -191,16 +191,16 @@ test_unsupported() -> %% Just test we don't blow up test_ignore() -> - ?MS:start_link({local, foo}, get_group(group), ?MODULE, + ?MS:start_link({local, foo}, gen_name(group), ?MODULE, {sup, fake_strategy_for_ignore, []}), passed. %% --------------------------------------------------------------------------- with_sups(Fun, Sups) -> - inc_group(), + inc_gen_name(), Pids = [begin {ok, Pid} = start_sup(Sup), Pid end || Sup <- Sups], - Fun(Pids), + Fun(Pids, gen_name(worker)), [kill(Pid) || Pid <- Pids, is_process_alive(Pid)], passed. @@ -208,7 +208,7 @@ start_sup(Spec) -> start_sup(Spec, group). start_sup({Name, ChildSpecs}, Group) -> - {ok, Pid} = start_sup0(Name, get_group(Group), ChildSpecs), + {ok, Pid} = start_sup0(Name, gen_name(Group), ChildSpecs), %% We are not a supervisor, when we kill the supervisor we do not %% want to die! unlink(Pid), @@ -234,15 +234,15 @@ pid_of(Id) -> {received, Pid, ping} = call(Id, ping), Pid. -inc_group() -> +inc_gen_name() -> Count = case get(counter) of undefined -> 0; C -> C end + 1, put(counter, Count). -get_group(Group) -> - {Group, get(counter)}. +gen_name(Name) -> + list_to_atom(atom_to_list(Name) ++ integer_to_list(get(counter))). call(Id, Msg) -> call(Id, Msg, 100, 10). -- cgit v1.2.1 From e6610e431ef32b60c92d48120adadf0962b9aaf4 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 5 Dec 2011 16:28:25 +0000 Subject: backout b46a8c86ff10 --- scripts/rabbitmq-server | 3 +-- scripts/rabbitmq-server.bat | 3 +-- scripts/rabbitmqctl | 3 +-- scripts/rabbitmqctl.bat | 3 +-- 4 files changed, 4 insertions(+), 8 deletions(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 718c02ab..11492e2b 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -74,8 +74,7 @@ case "$(uname -s)" in ;; esac -# Ensures that epmd is running. -erl -sname epmd_primer -noinput -run init stop || exit 1 +epmd -daemon || exit 1 RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index f95d0dca..416385c3 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,8 +89,7 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -rem Ensures that epmd is running. -"!ERLANG_HOME!\bin\erl.exe" -sname epmd_primer -noinput -run init stop +"!ERLANG_HOME!\bin\epmd.exe" -daemon if ERRORLEVEL 1 ( exit /B 1 diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl index 496e70a0..f4494d0c 100755 --- a/scripts/rabbitmqctl +++ b/scripts/rabbitmqctl @@ -20,8 +20,7 @@ [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} [ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} -# Ensures that epmd is running. -erl -sname epmd_primer -noinput -run init stop || exit 1 +epmd -daemon || exit 1 exec erl \ -pa "${RABBITMQ_HOME}/ebin" \ diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index 11698d7a..80d476f7 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,8 +43,7 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -rem Ensures that epmd is running. -"!ERLANG_HOME!\bin\erl.exe" -sname epmd_primer -noinput -run init stop +"!ERLANG_HOME!\bin\epmd.exe" -daemon if ERRORLEVEL 1 ( exit /B 1 -- cgit v1.2.1 From 151bfc97f195aaf90eb5036eda41ce5c5d34688f Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 5 Dec 2011 16:34:35 +0000 Subject: find epmd.exe on windows --- scripts/rabbitmq-server.bat | 9 +++++---- scripts/rabbitmqctl.bat | 9 +++++---- 2 files changed, 10 insertions(+), 8 deletions(-) diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 416385c3..a922e8e3 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,10 +89,11 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -"!ERLANG_HOME!\bin\epmd.exe" -daemon - -if ERRORLEVEL 1 ( - exit /B 1 +for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\epmd.exe" ( + call !ERLANG_HOME!\%%i\bin\epmd.exe -daemon + if ERRORLEVEL 1 ( + exit /B 1 + ) ) "!ERLANG_HOME!\bin\erl.exe" ^ diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index 80d476f7..a5156f66 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,10 +43,11 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -"!ERLANG_HOME!\bin\epmd.exe" -daemon - -if ERRORLEVEL 1 ( - exit /B 1 +for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\epmd.exe" ( + call !ERLANG_HOME!\%%i\bin\epmd.exe -daemon + if ERRORLEVEL 1 ( + exit /B 1 + ) ) "!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! -- cgit v1.2.1 From 66f721ef3b7bfeec4730e5f74ea06d06e57a7cc1 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Mon, 5 Dec 2011 16:46:10 +0000 Subject: typo --- src/rabbit_control.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 9c5470d2..5707afc0 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -102,7 +102,7 @@ start() -> rabbit_misc:print_error("~p", [Reason]), rabbit_misc:quit(2); {error_string, Reason} -> - print_error("~s", [Reason]), + rabbit_misc:print_error("~s", [Reason]), rabbit_misc:quit(2); {badrpc, {'EXIT', Reason}} -> rabbit_misc:print_error("~p", [Reason]), -- cgit v1.2.1 From 3eb4556c9bc19269f9159cee24a83e18dff0ca0e Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Tue, 13 Dec 2011 12:27:20 +0000 Subject: Stricter version checking when processing catchup messages in GM --- src/gm.erl | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index 6c899122..692f929b 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -571,8 +571,8 @@ handle_call({add_on_right, NewMember}, _From, fun (Group1) -> View1 = group_to_view(Group1), ok = send_right(NewMember, View1, - {catchup, Self, prepare_members_state( - MembersState)}) + {catchup, Self, view_version(View1), + prepare_members_state(MembersState)}) end), View2 = group_to_view(Group), State1 = check_neighbours(State #state { view = View2 }), @@ -693,17 +693,21 @@ handle_msg(check_neighbours, State) -> %% no-op - it's already been done by the calling handle_cast {ok, State}; -handle_msg({catchup, Left, MembersStateLeft}, +handle_msg({catchup, Left, Ver, MembersStateLeft}, State = #state { self = Self, left = {Left, _MRefL}, right = {Right, _MRefR}, view = View, members_state = undefined }) -> - ok = send_right(Right, View, {catchup, Self, MembersStateLeft}), - MembersStateLeft1 = build_members_state(MembersStateLeft), - {ok, State #state { members_state = MembersStateLeft1 }}; + case view_version(View) of + Ver -> ok = send_right(Right, View, + {catchup, Self, Ver, MembersStateLeft}), + MembersStateLeft1 = build_members_state(MembersStateLeft), + {ok, State #state { members_state = MembersStateLeft1 }}; + _ -> {ok, State} %% ignore catchup with out-of-date view + end; -handle_msg({catchup, Left, MembersStateLeft}, +handle_msg({catchup, Left, _Ver, MembersStateLeft}, State = #state { self = Self, left = {Left, _MRefL}, view = View, @@ -739,7 +743,7 @@ handle_msg({catchup, Left, MembersStateLeft}, handle_msg({activity, Left, activity_finalise(Activity)}, State #state { members_state = MembersState1 }); -handle_msg({catchup, _NotLeft, _MembersState}, State) -> +handle_msg({catchup, _NotLeft, _Ver, _MembersState}, State) -> {ok, State}; handle_msg({activity, Left, Activity}, @@ -1168,7 +1172,8 @@ maybe_send_catchup(_Right, #state { self = Self, view = View, members_state = MembersState }) -> send_right(Right, View, - {catchup, Self, prepare_members_state(MembersState)}). + {catchup, Self, view_version(View), + prepare_members_state(MembersState)}). %% --------------------------------------------------------------------------- -- cgit v1.2.1 From e98ddad90b4d375ed39399bc3fd884dee5731cbe Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 13 Dec 2011 16:31:34 +0000 Subject: Explain what's actually going on here. --- src/gm.erl | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/src/gm.erl b/src/gm.erl index 692f929b..e684685a 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -566,6 +566,27 @@ handle_call({add_on_right, NewMember}, _From, members_state = MembersState, module = Module, callback_args = Args }) -> + %% Note: the fun below executes in an Mnesia transaction and has + %% side effects. This is unfortunately necessary, but means that + %% it's possible for spurious catchup messages to be generated. + %% + %% It's necessary because of the following scenario: + %% + %% If we have A -> B -> C, B publishes a message which starts + %% making its way around. Now B' joins, adding itself to mnesia + %% leading to A -> B -> B' -> C. At this point, B dies, _before_ + %% it sends to B' the catchup message. According to mnesia, B' is + %% responsible for B's msgs, but B' will actually receive the + %% catchup from A, thus having the least of all information about + %% the messages from B - in particular, it'll crash when it + %% receives the msg B sent before dying as it's not a msg it's + %% seen before (which should be impossible). + %% + %% So we have to send the catchup message in the tx. If we die + %% after sending the catchup but before the tx commits, the + %% catchup will be ignored as coming from the wrong Left. But txs + %% can retry, so we have to deal with spurious catchup + %% messages. See comment in handle_msg({catchup, ...}). Group = record_new_member_in_group( GroupName, Self, NewMember, fun (Group1) -> @@ -704,7 +725,11 @@ handle_msg({catchup, Left, Ver, MembersStateLeft}, {catchup, Self, Ver, MembersStateLeft}), MembersStateLeft1 = build_members_state(MembersStateLeft), {ok, State #state { members_state = MembersStateLeft1 }}; - _ -> {ok, State} %% ignore catchup with out-of-date view + %% ignore catchup with out-of-date view, see + %% handle_call({add_on_right, ...). In this case we *know* + %% that there will be another catchup message along in a + %% minute (this one was a side effect of a retried tx). + _ -> {ok, State} end; handle_msg({catchup, Left, _Ver, MembersStateLeft}, -- cgit v1.2.1 From 53e8149a4ae11c21640a0f2e850d8a2e7c91d0dc Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 11 Jan 2012 17:58:57 +0000 Subject: WIP commit for auto-tuning. Just so we don't lose it, this currently does not work too well. --- src/gen_server2.erl | 20 ++++++++++++++--- src/rabbit_flow.erl | 64 +++++++++++++++++++++++++++++++++++++++++------------ 2 files changed, 67 insertions(+), 17 deletions(-) diff --git a/src/gen_server2.erl b/src/gen_server2.erl index 49913d26..da608d95 100644 --- a/src/gen_server2.erl +++ b/src/gen_server2.erl @@ -200,6 +200,8 @@ timeout_state, queue, debug, prioritise_call, prioritise_cast, prioritise_info}). +-define(QLEN_SAMPLE_SIZE, 10000). + %%%========================================================================= %%% Specs. These exist only to shut up dialyzer's warnings %%%========================================================================= @@ -405,6 +407,8 @@ init_it(Starter, Parent, Name0, Mod, Args, Options) -> mod = Mod, queue = Queue, debug = Debug }), + put(gs2_avg, 0), + put(gs2_stats, queue:from_list(lists:duplicate(?QLEN_SAMPLE_SIZE, 0))), case catch Mod:init(Args) of {ok, State} -> proc_lib:init_ack(Starter, {ok, self()}), @@ -479,10 +483,20 @@ loop(GS2State = #gs2_state { time = hibernate, loop(GS2State) -> process_next_msg(drain(GS2State)). -drain(GS2State) -> +drain(GS2State) -> drain(GS2State, 0). + +drain(GS2State, Count) -> receive - Input -> drain(in(Input, GS2State)) - after 0 -> GS2State + Input -> drain(in(Input, GS2State), Count + 1) + after 0 -> Avg = get(gs2_avg), + Q = get(gs2_stats), + %%V = priority_queue:len(GS2State#gs2_state.queue), + V = Count, + {{value, C}, Q1} = queue:out(Q), + put(gs2_avg, Avg + (V - C) / ?QLEN_SAMPLE_SIZE), + put(gs2_stats, queue:in(V, Q1)), + put(gs2_pq, priority_queue:len(GS2State#gs2_state.queue)), + GS2State end. process_next_msg(GS2State = #gs2_state { time = Time, diff --git a/src/rabbit_flow.erl b/src/rabbit_flow.erl index ea126003..fcdb2fed 100644 --- a/src/rabbit_flow.erl +++ b/src/rabbit_flow.erl @@ -16,8 +16,10 @@ -module(rabbit_flow). --define(MAX_CREDIT, 100). --define(MORE_CREDIT_AT, 50). +-define(INITIAL_CREDIT, 100). +-define(MORE_CREDIT_RATIO, 0.8). +-define(GS2_AVG_LOW, 0.96). +-define(GS2_AVG_HI, 1.02). -export([ack/1, bump/1, blocked/0, send/1]). @@ -30,21 +32,29 @@ %% sense internally). ack(To) -> - Credit = - case get({credit_to, To}) of - undefined -> ?MAX_CREDIT; - ?MORE_CREDIT_AT + 1 -> grant(To, ?MAX_CREDIT - ?MORE_CREDIT_AT), - ?MAX_CREDIT; - C -> C - 1 - end, + CreditLimit = case get({credit_limit, To}) of + undefined -> ?INITIAL_CREDIT; + C -> C + end, + put({credit_limit, To}, CreditLimit), + MoreAt = trunc(CreditLimit * ?MORE_CREDIT_RATIO), + %%io:format("~p -> ~p more at: ~p, currently at: ~p ~n", [self(), To, MoreAt, get({credit_to, To})]), + Credit = case get({credit_to, To}) of + undefined -> CreditLimit; + MoreAt -> grant(To), + get({credit_limit, To}); + C2 -> C2 - 1 + end, put({credit_to, To}, Credit). bump({From, MoreCredit}) -> Credit = case get({credit_from, From}) of undefined -> MoreCredit; - C -> C + MoreCredit + C -> %%io:format("~p -> ~p got ~p~n", [From, self(), C]), + C + MoreCredit end, put({credit_from, From}, Credit), +%% io:format("~p -> ~p got more credit: ~p now ~p~n", [From, self(), MoreCredit, Credit]), case Credit > 0 of true -> unblock(), false; @@ -57,9 +67,10 @@ blocked() -> send(From) -> Credit = case get({credit_from, From}) of - undefined -> ?MAX_CREDIT; + undefined -> ?INITIAL_CREDIT; C -> C end - 1, + %%io:format("~p send credit is ~p~n", [self(), Credit]), case Credit of 0 -> put(credit_blocked, true); _ -> ok @@ -68,17 +79,42 @@ send(From) -> %% -------------------------------------------------------------------------- -grant(To, Quantity) -> +grant(To) -> + OldCreditLimit = get({credit_limit, To}), + OldMoreAt = trunc(OldCreditLimit * ?MORE_CREDIT_RATIO), + adjust_credit(To), + NewCreditLimit = get({credit_limit, To}), + Quantity = NewCreditLimit - OldMoreAt + 1, Msg = {bump_credit, {self(), Quantity}}, case blocked() of - false -> To ! Msg; - true -> Deferred = case get(credit_deferred) of + false -> %%io:format("~p -> ~p sent more credit: ~p ~n", [self(), To, {NewCreditLimit, OldMoreAt, Quantity}]), + To ! Msg; + true -> %%io:format("~p -> ~p deferred more credit: ~p ~n", [self(), To, Quantity]), + Deferred = case get(credit_deferred) of undefined -> []; L -> L end, put(credit_deferred, [{To, Msg} | Deferred]) end. +adjust_credit(To) -> + Avg = get(gs2_avg), + Limit0 = get({credit_limit, To}), + Limit1 = if Avg > ?GS2_AVG_HI -> + L = erlang:max(trunc(Limit0 / 1.1), 10), + %%io:format("~p -> ~p v ~p (~p ~p)~n", [self(), To, L, Avg, queue:to_list(get(gs2_stats))]), + io:format("~p -> ~p v ~p (~p, ~p)~n", [self(), To, L, Avg, get(gs2_pq)]), + L; + Avg < ?GS2_AVG_LOW -> + L = erlang:min(trunc(Limit0 * 1.1), 10000), + io:format("~p -> ~p ^ ~p (~p, ~p)~n", [self(), To, L, Avg, {get(gs2_pq)}]), + L; + true -> + Limit0 + end, + put({credit_limit, To}, Limit1). + %% ok. + unblock() -> erase(credit_blocked), case get(credit_deferred) of -- cgit v1.2.1 From be9cd1b89778ec25eb4d90ae64a0be0d1694d1fa Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 19 Jan 2012 16:08:02 +0000 Subject: Remove underscores from the boot screen. How horrible! --- src/rabbit.erl | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index fe9c91bc..3b464d03 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -46,7 +46,8 @@ {enables, external_infrastructure}]}). -rabbit_boot_step({database_sync, - [{mfa, {rabbit_sup, start_child, [mnesia_sync]}}, + [{description, "database sync"}, + {mfa, {rabbit_sup, start_child, [mnesia_sync]}}, {requires, database}, {enables, external_infrastructure}]}). @@ -163,8 +164,9 @@ {enables, networking}]}). -rabbit_boot_step({direct_client, - [{mfa, {rabbit_direct, boot, []}}, - {requires, log_relay}]}). + [{description, "direct client"}, + {mfa, {rabbit_direct, boot, []}}, + {requires, log_relay}]}). -rabbit_boot_step({networking, [{mfa, {rabbit_networking, boot, []}}, -- cgit v1.2.1 From de263657e1e4d5c35d0a1d33b66873a5d6abe96b Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 19 Jan 2012 16:15:47 +0000 Subject: Conserve precious boot steps. --- src/rabbit.erl | 6 ------ src/rabbit_mnesia.erl | 1 + 2 files changed, 1 insertion(+), 6 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 3b464d03..9907ffac 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -45,12 +45,6 @@ {requires, file_handle_cache}, {enables, external_infrastructure}]}). --rabbit_boot_step({database_sync, - [{description, "database sync"}, - {mfa, {rabbit_sup, start_child, [mnesia_sync]}}, - {requires, database}, - {enables, external_infrastructure}]}). - -rabbit_boot_step({file_handle_cache, [{description, "file handle cache server"}, {mfa, {rabbit_sup, start_restartable_child, diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index bf997a6f..a3c08f2f 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -104,6 +104,7 @@ init() -> %% Mnesia is up. In fact that's not guaranteed to be the case - let's %% make it so. ok = global:sync(), + rabbit_sup:start_child(mnesia_sync), ok. is_db_empty() -> -- cgit v1.2.1 From a89242d6ebba37d1a4c2b325ea0fde3585a9d0a4 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 19 Jan 2012 17:14:22 +0000 Subject: 5df9b13693d6 broke rabbitmqctl reset. Revert. --- src/rabbit.erl | 6 ++++++ src/rabbit_mnesia.erl | 1 - 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 9907ffac..3b464d03 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -45,6 +45,12 @@ {requires, file_handle_cache}, {enables, external_infrastructure}]}). +-rabbit_boot_step({database_sync, + [{description, "database sync"}, + {mfa, {rabbit_sup, start_child, [mnesia_sync]}}, + {requires, database}, + {enables, external_infrastructure}]}). + -rabbit_boot_step({file_handle_cache, [{description, "file handle cache server"}, {mfa, {rabbit_sup, start_restartable_child, diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index a3c08f2f..bf997a6f 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -104,7 +104,6 @@ init() -> %% Mnesia is up. In fact that's not guaranteed to be the case - let's %% make it so. ok = global:sync(), - rabbit_sup:start_child(mnesia_sync), ok. is_db_empty() -> -- cgit v1.2.1 From 38fee26c3100ea8e0d14c33c322352d2a5890c6f Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 20 Jan 2012 11:42:13 +0000 Subject: clean junk --- src/mnesia_sync.erl | 77 ----------------------------------------------------- 1 file changed, 77 deletions(-) delete mode 100644 src/mnesia_sync.erl diff --git a/src/mnesia_sync.erl b/src/mnesia_sync.erl deleted file mode 100644 index a3773d90..00000000 --- a/src/mnesia_sync.erl +++ /dev/null @@ -1,77 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2012 VMware, Inc. All rights reserved. -%% - --module(mnesia_sync). - -%% mnesia:sync_transaction/3 fails to guarantee that the log is flushed to disk -%% at commit. This module is an attempt to minimise the risk of data loss by -%% performing a coalesced log fsync. Unfortunately this is performed regardless -%% of whether or not the log was appended to. - --behaviour(gen_server). - --export([sync/0]). - --export([start_link/0, init/1, handle_call/3, handle_cast/2, handle_info/2, - terminate/2, code_change/3]). - --define(SERVER, ?MODULE). - --record(state, {waiting, disc_node}). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(sync/0 :: () -> 'ok'). - --endif. - -%%---------------------------------------------------------------------------- - -start_link() -> - gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). - -sync() -> - gen_server:call(?SERVER, sync, infinity). - -%%---------------------------------------------------------------------------- - -init([]) -> - {ok, #state{disc_node = mnesia:system_info(use_dir), waiting = []}}. - -handle_call(sync, _From, #state{disc_node = false} = State) -> - {reply, ok, State}; -handle_call(sync, From, #state{waiting = Waiting} = State) -> - {noreply, State#state{waiting = [From | Waiting]}, 0}; -handle_call(Request, _From, State) -> - {stop, {unhandled_call, Request}, State}. - -handle_cast(Request, State) -> - {stop, {unhandled_cast, Request}, State}. - -handle_info(timeout, #state{waiting = Waiting} = State) -> - ok = disk_log:sync(latest_log), - [gen_server:reply(From, ok) || From <- Waiting], - {noreply, State#state{waiting = []}}; -handle_info(Message, State) -> - {stop, {unhandled_info, Message}, State}. - -terminate(_Reason, _State) -> - ok. - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. -- cgit v1.2.1 From d78e06a992547d13db5cab3fc69c6e2f591fdf17 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 24 Jan 2012 16:13:50 +0000 Subject: Fail to start if no disc nodes are up (bug 24703), and fail to reset if any disc nodes are down (see bug 24376). --- src/rabbit_mnesia.erl | 51 ++++++++++++++++++++++++++++++-------------------- src/rabbit_tests.erl | 47 +++++++++++++++++++++------------------------- src/rabbit_upgrade.erl | 2 +- 3 files changed, 53 insertions(+), 47 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 25326c99..25e7f09e 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -98,7 +98,7 @@ status() -> init() -> ensure_mnesia_running(), ensure_mnesia_dir(), - ok = init_db(read_cluster_nodes_config(), false), + ok = init_db(read_cluster_nodes_config(), at_least_one), %% We intuitively expect the global name server to be synced when %% Mnesia is up. In fact that's not guaranteed to be the case - let's %% make it so. @@ -173,7 +173,10 @@ cluster(ClusterNodes, Force) -> %% Join the cluster start_mnesia(), try - ok = init_db(ClusterNodes, Force), + ok = init_db(ClusterNodes, case Force of + true -> none; + false -> all + end), ok = create_cluster_nodes_config(ClusterNodes) after stop_mnesia() @@ -499,28 +502,34 @@ delete_previously_running_nodes() -> FileName, Reason}}) end. -init_db(ClusterNodes, Force) -> - init_db(ClusterNodes, Force, fun maybe_upgrade_local_or_record_desired/0). +init_db(ClusterNodes, RequiredDiscNodes) -> + init_db(ClusterNodes, RequiredDiscNodes, + fun maybe_upgrade_local_or_record_desired/0). %% Take a cluster node config and create the right kind of node - a %% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. If Force is false, don't allow -%% connections to offline nodes. -init_db(ClusterNodes, Force, SecondaryPostMnesiaFun) -> +%% specified cluster nodes. RequiredDiscNodes can be 'all', +%% 'at_least_one' or 'none' to describe the number of disc nodes that +%% are not this one that must be up for this operation to succeed. +init_db(ClusterNodes, RequiredDiscNodes, SecondaryPostMnesiaFun) -> UClusterNodes = lists:usort(ClusterNodes), ProperClusterNodes = UClusterNodes -- [node()], case mnesia:change_config(extra_db_nodes, ProperClusterNodes) of {ok, Nodes} -> - case Force of - false -> FailedClusterNodes = ProperClusterNodes -- Nodes, - case FailedClusterNodes of - [] -> ok; - _ -> throw({error, {failed_to_cluster_with, - FailedClusterNodes, - "Mnesia could not connect " - "to some nodes."}}) - end; - true -> ok + %% The ClusterNodes parameter is a list of *disc* nodes + FailedDiscNodes = ProperClusterNodes -- Nodes, + OK = case {FailedDiscNodes, Nodes, RequiredDiscNodes} of + {[], _, all} -> true; + {_, _, all} -> false; + {[], [], at_least_one} -> true; + {_, [], at_least_one} -> false; + _ -> true + end, + case OK of + true -> ok; + false -> throw({error, {failed_to_cluster_with, FailedDiscNodes, + "Mnesia could not connect " + "to some disc nodes."}}) end, WantDiscNode = should_be_disc_node(ClusterNodes), WasDiscNode = is_disc_node(), @@ -747,9 +756,11 @@ reset(Force) -> ensure_mnesia_running(), {Nodes, RunningNodes} = try - %% Force=true here so that reset still works when clustered - %% with a node which is down - ok = init_db(read_cluster_nodes_config(), true), + %% Since we are going to leave the cluster we need + %% to ensure that all other nodes are up - any + %% that are down will remember us and not come + %% back up. + ok = init_db(read_cluster_nodes_config(), all), {all_clustered_nodes() -- [Node], running_clustered_nodes() -- [Node]} after diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 9afb95b9..c4eb1170 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -810,23 +810,29 @@ test_cluster_management() -> %% various ways of creating a standalone node NodeS = atom_to_list(node()), - ClusteringSequence = [[], - [NodeS], - ["invalid@invalid", NodeS], - [NodeS, "invalid@invalid"]], + CanStart = [[], [NodeS]], + WontStart = [["invalid@invalid", NodeS], [NodeS, "invalid@invalid"]], + Both = CanStart ++ WontStart, + ok = control_action(reset, []), + lists:foreach(fun (Arg) -> + ok = control_action(force_cluster, Arg), + {error, _} = control_action(start_app, []), + ok + end, + WontStart), ok = control_action(reset, []), lists:foreach(fun (Arg) -> ok = control_action(force_cluster, Arg), ok end, - ClusteringSequence), + Both), lists:foreach(fun (Arg) -> ok = control_action(reset, []), ok = control_action(force_cluster, Arg), ok end, - ClusteringSequence), + Both), ok = control_action(reset, []), lists:foreach(fun (Arg) -> ok = control_action(force_cluster, Arg), @@ -834,7 +840,7 @@ test_cluster_management() -> ok = control_action(stop_app, []), ok end, - ClusteringSequence), + CanStart), lists:foreach(fun (Arg) -> ok = control_action(reset, []), ok = control_action(force_cluster, Arg), @@ -842,7 +848,7 @@ test_cluster_management() -> ok = control_action(stop_app, []), ok end, - ClusteringSequence), + CanStart), %% convert a disk node into a ram node ok = control_action(reset, []), @@ -862,7 +868,8 @@ test_cluster_management() -> SecondaryNode = rabbit_misc:makenode("hare"), case net_adm:ping(SecondaryNode) of pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", + pang -> ok = control_action(reset, []), + io:format("Skipping clustering tests with node ~p~n", [SecondaryNode]) end, @@ -882,24 +889,18 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(cluster, [SecondaryNodeS]), ok = assert_ram_node(), - %% join cluster as a ram node - ok = control_action(reset, []), - ok = control_action(force_cluster, [SecondaryNodeS, "invalid1@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_ram_node(), - %% change cluster config while remaining in same cluster ok = control_action(force_cluster, ["invalid2@invalid", SecondaryNodeS]), + ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - %% join non-existing cluster as a ram node + %% attempt to join non-existing cluster as a ram node ok = control_action(force_cluster, ["invalid1@invalid", "invalid2@invalid"]), - ok = control_action(start_app, []), - ok = control_action(stop_app, []), - ok = assert_ram_node(), + ok = control_action(reset, []), + {error, _} = control_action(cluster, ["invalid1@invalid", + "invalid2@invalid"]), %% join empty cluster as a ram node (converts to disc) ok = control_action(cluster, []), @@ -920,12 +921,6 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(stop_app, []), ok = assert_disc_node(), - %% convert a disk node into a ram node - ok = assert_disc_node(), - ok = control_action(force_cluster, ["invalid1@invalid", - "invalid2@invalid"]), - ok = assert_ram_node(), - %% make a new disk node ok = control_action(force_reset, []), ok = control_action(start_app, []), diff --git a/src/rabbit_upgrade.erl b/src/rabbit_upgrade.erl index 717d94a8..776da90d 100644 --- a/src/rabbit_upgrade.erl +++ b/src/rabbit_upgrade.erl @@ -223,7 +223,7 @@ secondary_upgrade(AllNodes) -> false -> AllNodes -- [node()] end, rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok = rabbit_mnesia:init_db(ClusterNodes, true, fun () -> ok end), + ok = rabbit_mnesia:init_db(ClusterNodes, none, fun () -> ok end), ok = rabbit_version:record_desired_for_scope(mnesia), ok. -- cgit v1.2.1 From 504c76476434f8c4fe4156d95b4378b754de955a Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 24 Jan 2012 16:43:28 +0000 Subject: Fix various tests --- src/rabbit_tests.erl | 35 ++++++++++++++++------------------- 1 file changed, 16 insertions(+), 19 deletions(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index c4eb1170..b92d0716 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -810,37 +810,33 @@ test_cluster_management() -> %% various ways of creating a standalone node NodeS = atom_to_list(node()), - CanStart = [[], [NodeS]], - WontStart = [["invalid@invalid", NodeS], [NodeS, "invalid@invalid"]], - Both = CanStart ++ WontStart, + %% For "Start" read "StartOrReset" + CanStartAndReset = [[], [NodeS]], + WontStartOrReset = [["invalid@invalid", NodeS], [NodeS, "invalid@invalid"]], + Both = CanStartAndReset ++ WontStartOrReset, ok = control_action(reset, []), lists:foreach(fun (Arg) -> ok = control_action(force_cluster, Arg), + {error, _} = control_action(reset, []), {error, _} = control_action(start_app, []), ok end, - WontStart), - ok = control_action(reset, []), - lists:foreach(fun (Arg) -> - ok = control_action(force_cluster, Arg), - ok - end, - Both), + WontStartOrReset), + ok = control_action(force_reset, []), lists:foreach(fun (Arg) -> - ok = control_action(reset, []), ok = control_action(force_cluster, Arg), ok end, Both), - ok = control_action(reset, []), + ok = control_action(force_reset, []), lists:foreach(fun (Arg) -> ok = control_action(force_cluster, Arg), ok = control_action(start_app, []), ok = control_action(stop_app, []), ok end, - CanStart), + CanStartAndReset), lists:foreach(fun (Arg) -> ok = control_action(reset, []), ok = control_action(force_cluster, Arg), @@ -848,7 +844,7 @@ test_cluster_management() -> ok = control_action(stop_app, []), ok end, - CanStart), + CanStartAndReset), %% convert a disk node into a ram node ok = control_action(reset, []), @@ -860,16 +856,16 @@ test_cluster_management() -> ok = assert_ram_node(), %% join a non-existing cluster as a ram node - ok = control_action(reset, []), + ok = control_action(force_reset, []), ok = control_action(force_cluster, ["invalid1@invalid", "invalid2@invalid"]), ok = assert_ram_node(), + ok = control_action(force_reset, []), SecondaryNode = rabbit_misc:makenode("hare"), case net_adm:ping(SecondaryNode) of pong -> passed = test_cluster_management2(SecondaryNode); - pang -> ok = control_action(reset, []), - io:format("Skipping clustering tests with node ~p~n", + pang -> io:format("Skipping clustering tests with node ~p~n", [SecondaryNode]) end, @@ -898,7 +894,8 @@ test_cluster_management2(SecondaryNode) -> %% attempt to join non-existing cluster as a ram node ok = control_action(force_cluster, ["invalid1@invalid", "invalid2@invalid"]), - ok = control_action(reset, []), + {error, _} = control_action(reset, []), + ok = control_action(force_reset, []), {error, _} = control_action(cluster, ["invalid1@invalid", "invalid2@invalid"]), @@ -955,7 +952,7 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(start_app, []), ok = control_action(stop_app, SecondaryNode, [], []), ok = control_action(stop_app, []), - {error, {no_running_cluster_nodes, _, _}} = + {error, {failed_to_cluster_with, _, _}} = control_action(reset, []), %% attempt to change type when no other node is alive -- cgit v1.2.1 From 939c0bd4aa286f1805a9f83ecf87420c292f637a Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 24 Jan 2012 16:48:37 +0000 Subject: Huh --- src/rabbit_tests.erl | 1 - 1 file changed, 1 deletion(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index b92d0716..4fb1c5f7 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -810,7 +810,6 @@ test_cluster_management() -> %% various ways of creating a standalone node NodeS = atom_to_list(node()), - %% For "Start" read "StartOrReset" CanStartAndReset = [[], [NodeS]], WontStartOrReset = [["invalid@invalid", NodeS], [NodeS, "invalid@invalid"]], Both = CanStartAndReset ++ WontStartOrReset, -- cgit v1.2.1 From ab8deab5c55fde484a45ad2a4cd23eecb4b98a96 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 26 Jan 2012 15:51:25 +0000 Subject: Propagate further. --- Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index 31c71dd4..10db4b17 100644 --- a/Makefile +++ b/Makefile @@ -231,11 +231,11 @@ stop-node: COVER_DIR=. start-cover: all - echo "rabbit_misc:start_cover([\"rabbit\", \"hare\"])." | $(ERL_CALL) + echo "rabbit_misc:start_cover([\"rabbit\", \"hare\", \"bunny\"])." | $(ERL_CALL) echo "rabbit_misc:enable_cover([\"$(COVER_DIR)\"])." | $(ERL_CALL) start-secondary-cover: all - echo "rabbit_misc:start_cover([\"hare\"])." | $(ERL_CALL) + echo "rabbit_misc:start_cover([\"hare\", \"bunny\"])." | $(ERL_CALL) stop-cover: all echo "rabbit_misc:report_cover(), cover:stop()." | $(ERL_CALL) -- cgit v1.2.1 From daed3a3b94f3cd8d9f8f4c20e025454878d9f781 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 26 Jan 2012 16:25:16 +0000 Subject: Test the reset-when-not-all-disc-nodes-are-up thing. --- src/rabbit_tests.erl | 53 +++++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 48 insertions(+), 5 deletions(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 4fb1c5f7..a1c868b7 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -862,10 +862,13 @@ test_cluster_management() -> ok = control_action(force_reset, []), SecondaryNode = rabbit_misc:makenode("hare"), - case net_adm:ping(SecondaryNode) of - pong -> passed = test_cluster_management2(SecondaryNode); - pang -> io:format("Skipping clustering tests with node ~p~n", - [SecondaryNode]) + TertiaryNode = rabbit_misc:makenode("bunny"), + case {net_adm:ping(SecondaryNode), net_adm:ping(TertiaryNode)} of + {pong, pong} -> passed = test_cluster_management2(SecondaryNode), + passed = test_cluster_management3( + SecondaryNode, TertiaryNode); + _ -> io:format("Skipping clustering tests with nodes ~p~n", + [[SecondaryNode, TertiaryNode]]) end, ok = control_action(start_app, []), @@ -958,7 +961,47 @@ test_cluster_management2(SecondaryNode) -> {error, {no_running_cluster_nodes, _, _}} = control_action(cluster, [SecondaryNodeS]), - %% leave system clustered, with the secondary node as a ram node + passed. + +test_cluster_management3(SecondaryNode, TertiaryNode) -> + NodeS = atom_to_list(node()), + SecondaryNodeS = atom_to_list(SecondaryNode), + TertiaryNodeS = atom_to_list(TertiaryNode), + + %% 3-node cluster, 2 x disc 1 x ram + ok = control_action(stop_app, SecondaryNode, [], []), + ok = control_action(stop_app, TertiaryNode, [], []), + ok = control_action(force_reset, [], []), + ok = control_action(force_reset, SecondaryNode, [], []), + ok = control_action(force_reset, TertiaryNode, [], []), + ok = control_action(start_app, [], []), + ok = control_action(cluster, SecondaryNode, [NodeS, SecondaryNodeS], []), + ok = control_action(start_app, SecondaryNode, [], []), + ok = control_action(cluster, TertiaryNode, [NodeS, SecondaryNodeS], []), + ok = control_action(start_app, TertiaryNode, [], []), + + %% Reset fails as disc node 2 not up + ok = control_action(stop_app, SecondaryNode, [], []), + ok = control_action(stop_app, TertiaryNode, [], []), + {error, _} = control_action(reset, TertiaryNode, [], []), + ok = control_action(start_app, SecondaryNode, [], []), + ok = control_action(reset, TertiaryNode, [], []), + ok = control_action(cluster, TertiaryNode, [NodeS], []), + ok = control_action(start_app, TertiaryNode, [], []), + + %% Convert node 2 to ram node + ok = control_action(stop_app, SecondaryNode, [], []), + ok = control_action(reset, SecondaryNode, [], []), + ok = control_action(cluster, SecondaryNode, [NodeS], []), + ok = control_action(start_app, SecondaryNode, [], []), + + %% Reset succeeds when ram node 2 not up + ok = control_action(stop_app, SecondaryNode, [], []), + ok = control_action(stop_app, TertiaryNode, [], []), + ok = control_action(reset, TertiaryNode, [], []), + + %% Leave system clustered, with two nodes, the secondary node as a ram node + ok = control_action(stop_app, []), ok = control_action(force_reset, []), ok = control_action(start_app, []), ok = control_action(force_reset, SecondaryNode, [], []), -- cgit v1.2.1 From af4f5a36f6b21c29bde4bb41cc90d6a62a04086f Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 26 Jan 2012 16:35:24 +0000 Subject: Finally: test that a ram node will not start by itself. You know - the point of the bug. --- src/rabbit_tests.erl | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index a1c868b7..f81f742c 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -887,6 +887,14 @@ test_cluster_management2(SecondaryNode) -> ok = control_action(cluster, [SecondaryNodeS]), ok = assert_ram_node(), + %% ram node will not start by itself + ok = control_action(stop_app, []), + ok = control_action(stop_app, SecondaryNode, [], []), + {error, _} = control_action(start_app, []), + ok = control_action(start_app, SecondaryNode, [], []), + ok = control_action(start_app, []), + ok = control_action(stop_app, []), + %% change cluster config while remaining in same cluster ok = control_action(force_cluster, ["invalid2@invalid", SecondaryNodeS]), ok = control_action(cluster, [SecondaryNodeS]), -- cgit v1.2.1 From 121769848db2a65c665667dfb7b061c33d783661 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 26 Jan 2012 16:35:36 +0000 Subject: This is never used. --- src/rabbit_tests.erl | 1 - 1 file changed, 1 deletion(-) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index f81f742c..624d80bf 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -974,7 +974,6 @@ test_cluster_management2(SecondaryNode) -> test_cluster_management3(SecondaryNode, TertiaryNode) -> NodeS = atom_to_list(node()), SecondaryNodeS = atom_to_list(SecondaryNode), - TertiaryNodeS = atom_to_list(TertiaryNode), %% 3-node cluster, 2 x disc 1 x ram ok = control_action(stop_app, SecondaryNode, [], []), -- cgit v1.2.1 From 24e9f9ba092fe999ccc4b5d8cf49a39d92d1fa9c Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 31 Jan 2012 10:46:00 +0000 Subject: try to start epmd as a background job --- scripts/epmd.bat | 23 +++++++++++++++++++++++ scripts/rabbitmq-server.bat | 7 +------ scripts/rabbitmqctl.bat | 7 +------ 3 files changed, 25 insertions(+), 12 deletions(-) create mode 100644 scripts/epmd.bat diff --git a/scripts/epmd.bat b/scripts/epmd.bat new file mode 100644 index 00000000..64495e8d --- /dev/null +++ b/scripts/epmd.bat @@ -0,0 +1,23 @@ +@echo off +REM The contents of this file are subject to the Mozilla Public License +REM Version 1.1 (the "License"); you may not use this file except in +REM compliance with the License. You may obtain a copy of the License +REM at http://www.mozilla.org/MPL/ +REM +REM Software distributed under the License is distributed on an "AS IS" +REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +REM the License for the specific language governing rights and +REM limitations under the License. +REM +REM The Original Code is RabbitMQ. +REM +REM The Initial Developer of the Original Code is VMware, Inc. +REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. +REM + +for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\epmd.exe" ( + call "!ERLANG_HOME!\%%i\bin\epmd.exe" + if ERRORLEVEL 1 ( + exit /B 1 + ) +) diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 3b0889f6..4c0efbe1 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,12 +89,7 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\epmd.exe" ( - call "!ERLANG_HOME!\%%i\bin\epmd.exe" -daemon - if ERRORLEVEL 1 ( - exit /B 1 - ) -) +start /B epmd.bat "!ERLANG_HOME!\bin\erl.exe" ^ -pa "!RABBITMQ_EBIN_ROOT!" ^ diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index a5156f66..33992bce 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,12 +43,7 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\epmd.exe" ( - call !ERLANG_HOME!\%%i\bin\epmd.exe -daemon - if ERRORLEVEL 1 ( - exit /B 1 - ) -) +start /B epmd.bat "!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! -- cgit v1.2.1 From 58217e398a1f6f9fece581602f6d7e3e06178402 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 31 Jan 2012 10:58:55 +0000 Subject: Backed out changeset 6bdb3b57d0c5 --- scripts/epmd.bat | 23 ----------------------- scripts/rabbitmq-server.bat | 7 ++++++- scripts/rabbitmqctl.bat | 7 ++++++- 3 files changed, 12 insertions(+), 25 deletions(-) delete mode 100644 scripts/epmd.bat diff --git a/scripts/epmd.bat b/scripts/epmd.bat deleted file mode 100644 index 64495e8d..00000000 --- a/scripts/epmd.bat +++ /dev/null @@ -1,23 +0,0 @@ -@echo off -REM The contents of this file are subject to the Mozilla Public License -REM Version 1.1 (the "License"); you may not use this file except in -REM compliance with the License. You may obtain a copy of the License -REM at http://www.mozilla.org/MPL/ -REM -REM Software distributed under the License is distributed on an "AS IS" -REM basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -REM the License for the specific language governing rights and -REM limitations under the License. -REM -REM The Original Code is RabbitMQ. -REM -REM The Initial Developer of the Original Code is VMware, Inc. -REM Copyright (c) 2007-2011 VMware, Inc. All rights reserved. -REM - -for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\epmd.exe" ( - call "!ERLANG_HOME!\%%i\bin\epmd.exe" - if ERRORLEVEL 1 ( - exit /B 1 - ) -) diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 4c0efbe1..3b0889f6 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,7 +89,12 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -start /B epmd.bat +for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\epmd.exe" ( + call "!ERLANG_HOME!\%%i\bin\epmd.exe" -daemon + if ERRORLEVEL 1 ( + exit /B 1 + ) +) "!ERLANG_HOME!\bin\erl.exe" ^ -pa "!RABBITMQ_EBIN_ROOT!" ^ diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index 33992bce..a5156f66 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,7 +43,12 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -start /B epmd.bat +for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\epmd.exe" ( + call !ERLANG_HOME!\%%i\bin\epmd.exe -daemon + if ERRORLEVEL 1 ( + exit /B 1 + ) +) "!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! -- cgit v1.2.1 From 5960782bfef827a5c2473db99f7e773e71a901f7 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 31 Jan 2012 11:04:03 +0000 Subject: let erlang start epmd on windows --- scripts/rabbitmq-server.bat | 8 ++------ scripts/rabbitmqctl.bat | 8 ++------ 2 files changed, 4 insertions(+), 12 deletions(-) diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 3b0889f6..5118c7bb 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,12 +89,8 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\epmd.exe" ( - call "!ERLANG_HOME!\%%i\bin\epmd.exe" -daemon - if ERRORLEVEL 1 ( - exit /B 1 - ) -) +rem FIXME Find out why "epmd -daemon" doesn't work on Windows +erl -sname foo -s init stop "!ERLANG_HOME!\bin\erl.exe" ^ -pa "!RABBITMQ_EBIN_ROOT!" ^ diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index a5156f66..7b6be33f 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,12 +43,8 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -for /f "delims=" %%i in ('dir /ad/b "!ERLANG_HOME!"') do if exist "!ERLANG_HOME!\%%i\bin\epmd.exe" ( - call !ERLANG_HOME!\%%i\bin\epmd.exe -daemon - if ERRORLEVEL 1 ( - exit /B 1 - ) -) +rem FIXME Find out why "epmd -daemon" doesn't work on Windows +erl -sname foo -s init stop "!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! -- cgit v1.2.1 From 371035385ee3dace80473cdcd123585490ee84f9 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Tue, 31 Jan 2012 11:14:15 +0000 Subject: silence epmd start --- scripts/rabbitmq-server.bat | 5 ++++- scripts/rabbitmqctl.bat | 5 ++++- src/rabbit_plugins.erl | 2 +- 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 5118c7bb..bd373ff3 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -90,7 +90,10 @@ set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin rem FIXME Find out why "epmd -daemon" doesn't work on Windows -erl -sname foo -s init stop +"!ERLANG_HOME!\bin\erl.exe" ^ +-noinput -hidden ^ +-sname "epmd_!RABBITMQ_NODENAME!" ^ +-s init stop "!ERLANG_HOME!\bin\erl.exe" ^ -pa "!RABBITMQ_EBIN_ROOT!" ^ diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index 7b6be33f..d165d111 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -44,7 +44,10 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( ) rem FIXME Find out why "epmd -daemon" doesn't work on Windows -erl -sname foo -s init stop +"!ERLANG_HOME!\bin\erl.exe" ^ +-noinput -hidden ^ +-sname "epmd_!RABBITMQ_NODENAME!" ^ +-s init stop "!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! diff --git a/src/rabbit_plugins.erl b/src/rabbit_plugins.erl index 338b3d10..463a34e0 100644 --- a/src/rabbit_plugins.erl +++ b/src/rabbit_plugins.erl @@ -57,7 +57,7 @@ start() -> Command = list_to_atom(Command0), PrintInvalidCommandError = fun () -> - rabbitmq_misc:print_error( + rabbit_misc:print_error( "invalid command '~s'", [string:join([atom_to_list(Command) | Args], " ")]) end, -- cgit v1.2.1 From bde5f08b59a14856227d9a2bffb6dbf01ca6249d Mon Sep 17 00:00:00 2001 From: Steve Powell Date: Fri, 3 Feb 2012 15:34:38 +0000 Subject: Defaults all centralised and isolated. --- scripts/rabbitmq-env | 56 ++++++++++++++++++++++++++++++++++++++++++++---- scripts/rabbitmq-plugins | 9 +------- scripts/rabbitmq-server | 40 +--------------------------------- scripts/rabbitmq-sys | 9 ++++---- scripts/rabbitmqctl | 9 +------- 5 files changed, 59 insertions(+), 64 deletions(-) diff --git a/scripts/rabbitmq-env b/scripts/rabbitmq-env index dd7abd34..92c3b938 100755 --- a/scripts/rabbitmq-env +++ b/scripts/rabbitmq-env @@ -43,12 +43,60 @@ if [ ! -f ${SCRIPT_DIR}/rabbitmq-sys ]; then exit 1 fi -. ${SCRIPT_DIR}/rabbitmq-sys - -## Get configuration variables from the rabbitmq-env.conf file +## Get configuration variables from the rabbitmq-env.conf file and rabbitmq-sys if [ -f /etc/rabbitmq/rabbitmq.conf ] && \ [ ! -f /etc/rabbitmq/rabbitmq-env.conf ] ; then echo -n "WARNING: ignoring /etc/rabbitmq/rabbitmq.conf -- " echo "location has moved to /etc/rabbitmq/rabbitmq-env.conf" fi -[ -f /etc/rabbitmq/rabbitmq-env.conf ] && . /etc/rabbitmq/rabbitmq-env.conf + +if [ -f /etc/rabbitmq/rabbitmq-env.conf ] ; then + RABBITMQ_ENV_CONF_SETTINGS=`(. ${SCRIPT_DIR}/rabbitmq-sys; \ + . /etc/rabbitmq/rabbitmq-env.conf; set;)` +else + RABBITMQ_ENV_CONF_SETTINGS=`(. ${SCRIPT_DIR}/rabbitmq-sys; set;)` +fi + +setRabbitEnvVarWithDefault() +{ # Get value of var $2 from RABBITMQ_ENV_CONF_SETTINGS to set $1, only if $1 is empty + # $1 - var to set; $2 - var to use from RABBITMQ_ENV_CONF_SETTINGS + local $2; getRabbitEnvVar $2; applyDefault $1 $2 +} +getRabbitEnvVar() +{ # $1 - var to set + eval `echo "$RABBITMQ_ENV_CONF_SETTINGS" | grep "^$1"` +} +applyDefault() +{ # $1 - var to set; $2 - var with default value + [ -z "${!1}" ] && eval "$1="'"${!2}"' +} + +# use default value of $2 (obtained from RABBITMQ_ENV_CONF_SETTINGS) to set empty value of $1: +setRabbitEnvVarWithDefault RABBITMQ_NODE_IP_ADDRESS NODE_IP_ADDRESS +setRabbitEnvVarWithDefault RABBITMQ_NODE_PORT NODE_PORT +setRabbitEnvVarWithDefault RABBITMQ_NODENAME NODENAME +setRabbitEnvVarWithDefault RABBITMQ_SERVER_ERL_ARGS SERVER_ERL_ARGS +setRabbitEnvVarWithDefault RABBITMQ_CTL_ERL_ARGS CTL_ERL_ARGS +setRabbitEnvVarWithDefault RABBITMQ_CONFIG_FILE CONFIG_FILE +setRabbitEnvVarWithDefault RABBITMQ_LOG_BASE LOG_BASE +setRabbitEnvVarWithDefault RABBITMQ_MNESIA_BASE MNESIA_BASE +setRabbitEnvVarWithDefault RABBITMQ_SERVER_START_ARGS SERVER_START_ARGS +setRabbitEnvVarWithDefault RABBITMQ_MNESIA_DIR MNESIA_DIR +setRabbitEnvVarWithDefault RABBITMQ_PID_FILE PID_FILE +setRabbitEnvVarWithDefault RABBITMQ_PLUGINS_EXPAND_DIR PLUGINS_EXPAND_DIR +setRabbitEnvVarWithDefault RABBITMQ_ENABLED_PLUGINS_FILE ENABLED_PLUGINS_FILE +setRabbitEnvVarWithDefault RABBITMQ_PLUGINS_DIR PLUGINS_DIR +setRabbitEnvVarWithDefault RABBITMQ_LOGS LOGS +setRabbitEnvVarWithDefault RABBITMQ_SASL_LOGS SASL_LOGS + +# dependent default settings: +[ -z "$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME} +[ -z "$RABBITMQ_PID_FILE" ] && RABBITMQ_PID_FILE=${RABBITMQ_MNESIA_DIR}.pid +[ -z "$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME}-plugins-expand +[ -z "$RABBITMQ_LOGS" ] && RABBITMQ_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}.log" +[ -z "$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}-sasl.log" + +# inter-dependent defaults not user modifiable: +RABBITMQ_ENV_CONF_SETTINGS=`(. ${SCRIPT_DIR}/rabbitmq-sys; set;)` +[ -n "$RABBITMQ_NODE_PORT" ] && setRabbitEnvVarWithDefault RABBITMQ_NODE_IP_ADDRESS DEFAULT_NODE_IP_ADDRESS +[ -n "$RABBITMQ_NODE_IP_ADDRESS" ] && setRabbitEnvVarWithDefault RABBITMQ_NODE_PORT DEFAULT_NODE_PORT diff --git a/scripts/rabbitmq-plugins b/scripts/rabbitmq-plugins index 247cbfe2..05d86fd5 100755 --- a/scripts/rabbitmq-plugins +++ b/scripts/rabbitmq-plugins @@ -16,16 +16,9 @@ ## # Get default settings with user overrides for (RABBITMQ_) -# Non-empty defaults should be set in rabbitmq-env +# All settings are obtained in rabbitmq-env . `dirname $0`/rabbitmq-env -##--- Set environment vars RABBITMQ_ to defaults if not set - -[ "x" = "x$RABBITMQ_ENABLED_PLUGINS_FILE" ] && RABBITMQ_ENABLED_PLUGINS_FILE=${ENABLED_PLUGINS_FILE} -[ "x" = "x$RABBITMQ_PLUGINS_DIR" ] && RABBITMQ_PLUGINS_DIR=${PLUGINS_DIR} - -##--- End of overridden variables - exec erl \ -pa "${RABBITMQ_HOME}/ebin" \ -noinput \ diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index a191805f..b6265fcb 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -16,47 +16,9 @@ ## # Get default settings with user overrides for (RABBITMQ_) -# Non-empty defaults should be set in rabbitmq-env +# All settings are obtained in rabbitmq-env . `dirname $0`/rabbitmq-env -##--- Set environment vars RABBITMQ_ to defaults if not set - -DEFAULT_NODE_IP_ADDRESS=auto -DEFAULT_NODE_PORT=5672 -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} -[ "x" = "x$RABBITMQ_NODE_PORT" ] && RABBITMQ_NODE_PORT=${NODE_PORT} - -[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$RABBITMQ_NODE_PORT" ] && RABBITMQ_NODE_IP_ADDRESS=${DEFAULT_NODE_IP_ADDRESS} -[ "x" != "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" = "x$RABBITMQ_NODE_PORT" ] && RABBITMQ_NODE_PORT=${DEFAULT_NODE_PORT} - -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_SERVER_ERL_ARGS" ] && RABBITMQ_SERVER_ERL_ARGS=${SERVER_ERL_ARGS} -[ "x" = "x$RABBITMQ_CONFIG_FILE" ] && RABBITMQ_CONFIG_FILE=${CONFIG_FILE} -[ "x" = "x$RABBITMQ_LOG_BASE" ] && RABBITMQ_LOG_BASE=${LOG_BASE} -[ "x" = "x$RABBITMQ_MNESIA_BASE" ] && RABBITMQ_MNESIA_BASE=${MNESIA_BASE} -[ "x" = "x$RABBITMQ_SERVER_START_ARGS" ] && RABBITMQ_SERVER_START_ARGS=${SERVER_START_ARGS} - -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${MNESIA_DIR} -[ "x" = "x$RABBITMQ_MNESIA_DIR" ] && RABBITMQ_MNESIA_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME} - -[ "x" = "x$RABBITMQ_PID_FILE" ] && RABBITMQ_PID_FILE=${PID_FILE} -[ "x" = "x$RABBITMQ_PID_FILE" ] && RABBITMQ_PID_FILE=${RABBITMQ_MNESIA_DIR}.pid - -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${PLUGINS_EXPAND_DIR} -[ "x" = "x$RABBITMQ_PLUGINS_EXPAND_DIR" ] && RABBITMQ_PLUGINS_EXPAND_DIR=${RABBITMQ_MNESIA_BASE}/${RABBITMQ_NODENAME}-plugins-expand - -[ "x" = "x$RABBITMQ_ENABLED_PLUGINS_FILE" ] && RABBITMQ_ENABLED_PLUGINS_FILE=${ENABLED_PLUGINS_FILE} - -[ "x" = "x$RABBITMQ_PLUGINS_DIR" ] && RABBITMQ_PLUGINS_DIR=${PLUGINS_DIR} - -## Log rotation -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS=${LOGS} -[ "x" = "x$RABBITMQ_LOGS" ] && RABBITMQ_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}.log" -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS=${SASL_LOGS} -[ "x" = "x$RABBITMQ_SASL_LOGS" ] && RABBITMQ_SASL_LOGS="${RABBITMQ_LOG_BASE}/${RABBITMQ_NODENAME}-sasl.log" - -##--- End of overridden variables - RABBITMQ_START_RABBIT= [ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' diff --git a/scripts/rabbitmq-sys b/scripts/rabbitmq-sys index c58341ef..2448ff1d 100644 --- a/scripts/rabbitmq-sys +++ b/scripts/rabbitmq-sys @@ -18,13 +18,12 @@ ## Set system default values SERVER_ERL_ARGS="+K true +A30 +P 1048576 \ -kernel inet_default_connect_options [{nodelay,true}]" - CONFIG_FILE=/etc/rabbitmq/rabbitmq - LOG_BASE=/var/log/rabbitmq - MNESIA_BASE=/var/lib/rabbitmq/mnesia - PLUGINS_DIR="${RABBITMQ_HOME}/plugins" - ENABLED_PLUGINS_FILE=/etc/rabbitmq/enabled_plugins + +## conditional system defaults +DEFAULT_NODE_IP_ADDRESS=auto +DEFAULT_NODE_PORT=5672 diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl index 887eeac6..78926322 100755 --- a/scripts/rabbitmqctl +++ b/scripts/rabbitmqctl @@ -16,16 +16,9 @@ ## # Get default settings with user overrides for (RABBITMQ_) -# Non-empty defaults should be set in rabbitmq-env +# All settings are obtained in rabbitmq-env . `dirname $0`/rabbitmq-env -##--- Set environment vars RABBITMQ_ to defaults if not set - -[ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} -[ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} - -##--- End of overridden variables - exec erl \ -pa "${RABBITMQ_HOME}/ebin" \ -noinput \ -- cgit v1.2.1 From 537e1e2c251c4c691a06bf4fe6c33cfb32b91862 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Tue, 14 Feb 2012 23:07:11 +0000 Subject: refactor: less strange variable scoping inspired by https://github.com/jbrisbin/rabbit_common/commit/1df90f5625ea14b074375b946063706f26a9932b, which is a different but broken attempt at the same --- src/rabbit_misc.erl | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index f8c8d482..4dfa279c 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -734,13 +734,14 @@ gb_trees_foreach(Fun, Tree) -> %% [{"-q",true},{"-p","/"}]} get_options(Defs, As) -> lists:foldl(fun(Def, {AsIn, RsIn}) -> - {AsOut, Value} = case Def of - {flag, Key} -> - get_flag(Key, AsIn); - {option, Key, Default} -> - get_option(Key, Default, AsIn) - end, - {AsOut, [{Key, Value} | RsIn]} + {K, {AsOut, V}} = + case Def of + {flag, Key} -> + {Key, get_flag(Key, AsIn)}; + {option, Key, Default} -> + {Key, get_option(Key, Default, AsIn)} + end, + {AsOut, [{K, V} | RsIn]} end, {As, []}, Defs). get_option(K, _Default, [K, V | As]) -> -- cgit v1.2.1 From b9eabd3c4f004523c05a51795e6268367cba74bf Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 15 Feb 2012 12:29:25 +0000 Subject: Better error message when received method when expecting body/header. --- src/rabbit_command_assembler.erl | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl index adf6e417..4a280b99 100644 --- a/src/rabbit_command_assembler.erl +++ b/src/rabbit_command_assembler.erl @@ -106,6 +106,11 @@ process({content_header, HeaderClassId, 0, _BodySize, _PropertiesBin}, unexpected_frame("expected content header for class ~w, " "got one for class ~w instead", [ClassId, HeaderClassId], Method); +process({method, MethodName, _FieldsBin}, + {content_header, Method, ClassId, _Protocol}) -> + unexpected_frame("received unexpected method frame for method ~w " + ", content header for class ~w expected", + [MethodName, ClassId], Method); process(_Frame, {content_header, Method, ClassId, _Protocol}) -> unexpected_frame("expected content header for class ~w, " "got non content header frame instead", [ClassId], Method); @@ -118,6 +123,10 @@ process({content_body, FragmentBin}, 0 -> {ok, Method, NewContent, {method, Protocol}}; Sz -> {ok, {content_body, Method, Sz, NewContent, Protocol}} end; +process({method, MethodName, _FieldsBin}, + {content_body, Method, _RemainingSize, _Content, _Protocol}) -> + unexpected_frame("received unexpected method frame for method ~w" + ", content body expected", [MethodName], Method); process(_Frame, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> unexpected_frame("expected content body, " "got non content body frame instead", [], Method). -- cgit v1.2.1 From 78269337b9f84a32cdc26e2cbabec04790a8d50d Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 17 Feb 2012 11:29:38 +0000 Subject: Just in case someone comes along and goes "oh, it works now". --- scripts/rabbitmq-server.bat | 2 +- scripts/rabbitmqctl.bat | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index dfd1f787..4866ba42 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,7 +89,7 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -rem FIXME Find out why "epmd -daemon" doesn't work on Windows +rem FIXME Find out why "epmd -daemon" doesn't work reliably on Windows "!ERLANG_HOME!\bin\erl.exe" ^ -noinput -hidden ^ -sname "epmd_!RABBITMQ_NODENAME!" ^ diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index 1615123b..a710296b 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,7 +43,7 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -rem FIXME Find out why "epmd -daemon" doesn't work on Windows +rem FIXME Find out why "epmd -daemon" doesn't work reliably on Windows "!ERLANG_HOME!\bin\erl.exe" ^ -noinput -hidden ^ -sname "epmd_!RABBITMQ_NODENAME!" ^ -- cgit v1.2.1 From d22384f137a5a43dfe0838528c9041632de0da73 Mon Sep 17 00:00:00 2001 From: Marek Majkowski Date: Fri, 17 Feb 2012 14:09:24 +0000 Subject: Let's try to abstract rabbit_net call, the minimalistic way. --- src/rabbit_heartbeat.erl | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-) diff --git a/src/rabbit_heartbeat.erl b/src/rabbit_heartbeat.erl index 80b4e768..97c45008 100644 --- a/src/rabbit_heartbeat.erl +++ b/src/rabbit_heartbeat.erl @@ -55,34 +55,42 @@ %%---------------------------------------------------------------------------- -start_heartbeat_sender(Sock, TimeoutSec, SendFun) -> +start_heartbeat_sender(GetStat, TimeoutSec, SendFun) -> %% the 'div 2' is there so that we don't end up waiting for nearly %% 2 * TimeoutSec before sending a heartbeat in the boundary case %% where the last message was sent just after a heartbeat. heartbeater( - {Sock, TimeoutSec * 1000 div 2, send_oct, 0, + {GetStat, TimeoutSec * 1000 div 2, send_oct, 0, fun () -> SendFun(), continue end}). -start_heartbeat_receiver(Sock, TimeoutSec, ReceiveFun) -> +start_heartbeat_receiver(GetStat, TimeoutSec, ReceiveFun) -> %% we check for incoming data every interval, and time out after %% two checks with no change. As a result we will time out between %% 2 and 3 intervals after the last data has been received. - heartbeater({Sock, TimeoutSec * 1000, recv_oct, 1, fun () -> + heartbeater({GetStat, TimeoutSec * 1000, recv_oct, 1, fun () -> ReceiveFun(), stop end}). start_heartbeat_fun(SupPid) -> - fun (Sock, SendTimeoutSec, SendFun, ReceiveTimeoutSec, ReceiveFun) -> + fun (SockOrGetStat, SendTimeoutSec, SendFun, ReceiveTimeoutSec, ReceiveFun) -> + GetStat = case SockOrGetStat of + GetStatFun when is_function(GetStatFun) -> + GetStatFun; + Sock -> + fun (Stat) -> + rabbit_net:getstat(Sock, [Stat]) + end + end, {ok, Sender} = - start_heartbeater(SendTimeoutSec, SupPid, Sock, + start_heartbeater(SendTimeoutSec, SupPid, GetStat, SendFun, heartbeat_sender, start_heartbeat_sender), {ok, Receiver} = - start_heartbeater(ReceiveTimeoutSec, SupPid, Sock, + start_heartbeater(ReceiveTimeoutSec, SupPid, GetStat, ReceiveFun, heartbeat_receiver, start_heartbeat_receiver), {Sender, Receiver} @@ -101,19 +109,19 @@ resume_monitor({_Sender, Receiver}) -> ok. %%---------------------------------------------------------------------------- -start_heartbeater(0, _SupPid, _Sock, _TimeoutFun, _Name, _Callback) -> +start_heartbeater(0, _SupPid, _GetStat, _TimeoutFun, _Name, _Callback) -> {ok, none}; -start_heartbeater(TimeoutSec, SupPid, Sock, TimeoutFun, Name, Callback) -> +start_heartbeater(TimeoutSec, SupPid, GetStat, TimeoutFun, Name, Callback) -> supervisor2:start_child( SupPid, {Name, {rabbit_heartbeat, Callback, - [Sock, TimeoutSec, TimeoutFun]}, + [GetStat, TimeoutSec, TimeoutFun]}, transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}). heartbeater(Params) -> {ok, proc_lib:spawn_link(fun () -> heartbeater(Params, {0, 0}) end)}. -heartbeater({Sock, TimeoutMillisec, StatName, Threshold, Handler} = Params, +heartbeater({GetStat, TimeoutMillisec, StatName, Threshold, Handler} = Params, {StatVal, SameCount}) -> Recurse = fun (V) -> heartbeater(Params, V) end, receive @@ -127,7 +135,7 @@ heartbeater({Sock, TimeoutMillisec, StatName, Threshold, Handler} = Params, Other -> exit({unexpected_message, Other}) after TimeoutMillisec -> - case rabbit_net:getstat(Sock, [StatName]) of + case GetStat(StatName) of {ok, [{StatName, NewStatVal}]} -> if NewStatVal =/= StatVal -> Recurse({NewStatVal, 0}); -- cgit v1.2.1 From c87b42438a3144a22880d31644355bc436b6101d Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Fri, 17 Feb 2012 15:47:40 +0000 Subject: move start_net_kernel into rabbit_nodes --- src/rabbit_control.erl | 4 ++-- src/rabbit_misc.erl | 23 ----------------------- src/rabbit_nodes.erl | 26 ++++++++++++++++++++++++++ src/rabbit_prelaunch.erl | 2 +- 4 files changed, 29 insertions(+), 26 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 9acbf374..d04c3ddd 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -56,7 +56,7 @@ %%---------------------------------------------------------------------------- start() -> - rabbit_misc:start_net_kernel("rabbitmqctl"), + rabbit_nodes:start_net_kernel("rabbitmqctl"), {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), {[Command0 | Args], Opts} = @@ -142,7 +142,7 @@ print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> io:nl(). print_badrpc_diagnostics(Node) -> - rabbit_misc:format_stderrr(rabbit_nodes:diagnostics([Node]), []). + rabbit_misc:format_stderr(rabbit_nodes:diagnostics([Node]), []). stop() -> ok. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 706c2404..232cfa44 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -41,7 +41,6 @@ -export([format/2, print_error/2, format_stderr/2, with_local_io/1, local_info_msg/2]). -export([start_applications/1, stop_applications/1]). --export([start_net_kernel/1]). -export([unfold/2, ceil/1, queue_fold/3]). -export([sort_field_table/1]). -export([pid_to_string/1, string_to_pid/1]). @@ -598,28 +597,6 @@ stop_applications(Apps) -> cannot_stop_application, Apps). -start_net_kernel(NodeNamePrefix) -> - {ok, Hostname} = inet:gethostname(), - MyNodeName = rabbit_nodes:make({NodeNamePrefix ++ os:getpid(), Hostname}), - case net_kernel:start([MyNodeName, shortnames]) of - {ok, _} -> - ok; - {error, Reason = {shutdown, {child, undefined, - net_sup_dynamic, _, _, _, _, _}}} -> - Port = case os:getenv("ERL_EPMD_PORT") of - false -> 4369; - P -> P - end, - print_error("epmd could not be contacted: ~p", [Reason]), - format_stderr("Check your network setup (in particular " - "check you can contact port ~w on localhost).~n", - [Port]), - quit(1); - {error, Reason} -> - print_error("Networking failed to start: ~p", [Reason]), - quit(1) - end. - unfold(Fun, Init) -> unfold(Fun, [], Init). diff --git a/src/rabbit_nodes.erl b/src/rabbit_nodes.erl index 329c07dc..742ef6ea 100644 --- a/src/rabbit_nodes.erl +++ b/src/rabbit_nodes.erl @@ -17,6 +17,7 @@ -module(rabbit_nodes). -export([names/1, diagnostics/1, make/1, parts/1, cookie_hash/0]). +-export([start_net_kernel/1]). -define(EPMD_TIMEOUT, 30000). @@ -32,6 +33,7 @@ -spec(make/1 :: ({string(), string()} | string()) -> node()). -spec(parts/1 :: (node() | string()) -> {string(), string()}). -spec(cookie_hash/0 :: () -> string()). +-spec(start_net_kernel/1 :: (string()) -> 'ok' | no_return()). -endif. @@ -92,3 +94,27 @@ parts(NodeStr) -> cookie_hash() -> base64:encode_to_string(erlang:md5(atom_to_list(erlang:get_cookie()))). + +start_net_kernel(NodeNamePrefix) -> + {ok, Hostname} = inet:gethostname(), + MyNodeName = make({NodeNamePrefix ++ os:getpid(), Hostname}), + case net_kernel:start([MyNodeName, shortnames]) of + {ok, _} -> + ok; + {error, Reason = {shutdown, {child, undefined, + net_sup_dynamic, _, _, _, _, _}}} -> + Port = case os:getenv("ERL_EPMD_PORT") of + false -> 4369; + P -> P + end, + rabbit_misc:format_stderr( + "Error: epmd could not be contacted: ~p~n", [Reason]), + rabbit_misc:format_stderr( + "Check your network setup (in particular " + "check you can contact port ~w on localhost).~n", [Port]), + rabbit_misc:quit(1); + {error, Reason} -> + rabbit_misc:format_stderr( + "Error: Networking failed to start: ~p~n", [Reason]), + rabbit_misc:quit(1) + end. diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl index 4a086822..dadbf35d 100644 --- a/src/rabbit_prelaunch.erl +++ b/src/rabbit_prelaunch.erl @@ -40,7 +40,7 @@ %%---------------------------------------------------------------------------- start() -> - rabbit_misc:start_net_kernel("rabbitmqprelaunch"), + rabbit_nodes:start_net_kernel("rabbitmqprelaunch"), io:format("Activating RabbitMQ plugins ...~n"), -- cgit v1.2.1 From 41e710c49f05c40492d4f004de04d778b515a2b3 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Fri, 17 Feb 2012 15:51:36 +0000 Subject: move print_error back into control and plugins --- src/rabbit_control.erl | 18 ++++++++++-------- src/rabbit_misc.erl | 6 +----- src/rabbit_plugins.erl | 8 +++++--- 3 files changed, 16 insertions(+), 16 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index d04c3ddd..144f16bd 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -82,7 +82,7 @@ start() -> end, PrintInvalidCommandError = fun () -> - rabbit_misc:print_error( + print_error( "invalid command '~s'", [string:join([atom_to_list(Command) | Args], " ")]) end, @@ -103,24 +103,23 @@ start() -> PrintInvalidCommandError(), usage(); {'EXIT', {badarg, _}} -> - rabbit_misc:print_error("invalid parameter: ~p", [Args]), + print_error("invalid parameter: ~p", [Args]), usage(); {error, Reason} -> - rabbit_misc:print_error("~p", [Reason]), + print_error("~p", [Reason]), rabbit_misc:quit(2); {error_string, Reason} -> - rabbit_misc:print_error("~s", [Reason]), + print_error("~s", [Reason]), rabbit_misc:quit(2); {badrpc, {'EXIT', Reason}} -> - rabbit_misc:print_error("~p", [Reason]), + print_error("~p", [Reason]), rabbit_misc:quit(2); {badrpc, Reason} -> - rabbit_misc:print_error("unable to connect to node ~w: ~w", - [Node, Reason]), + print_error("unable to connect to node ~w: ~w", [Node, Reason]), print_badrpc_diagnostics(Node), rabbit_misc:quit(2); Other -> - rabbit_misc:print_error("~p", [Other]), + print_error("~p", [Other]), rabbit_misc:quit(2) end. @@ -144,6 +143,9 @@ print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> print_badrpc_diagnostics(Node) -> rabbit_misc:format_stderr(rabbit_nodes:diagnostics([Node]), []). +print_error(Format, Args) -> + rabbit_misc:format_stderr("Error: " ++ Format ++ "~n", Args). + stop() -> ok. diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 232cfa44..b6d38172 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -38,8 +38,7 @@ -export([upmap/2, map_in_order/2]). -export([table_filter/3]). -export([dirty_read_all/1, dirty_foreach_key/2, dirty_dump_log/1]). --export([format/2, print_error/2, format_stderr/2, with_local_io/1, - local_info_msg/2]). +-export([format/2, format_stderr/2, with_local_io/1, local_info_msg/2]). -export([start_applications/1, stop_applications/1]). -export([unfold/2, ceil/1, queue_fold/3]). -export([sort_field_table/1]). @@ -549,9 +548,6 @@ format_stderr(Fmt, Args) -> end, ok. -print_error(Format, Args) -> - format_stderr("Error: " ++ Format ++ "~n", Args). - %% Execute Fun using the IO system of the local node (i.e. the node on %% which the code is executing). with_local_io(Fun) -> diff --git a/src/rabbit_plugins.erl b/src/rabbit_plugins.erl index b9342815..c9c48c3b 100644 --- a/src/rabbit_plugins.erl +++ b/src/rabbit_plugins.erl @@ -57,7 +57,7 @@ start() -> Command = list_to_atom(Command0), PrintInvalidCommandError = fun () -> - rabbit_misc:print_error( + print_error( "invalid command '~s'", [string:join([atom_to_list(Command) | Args], " ")]) end, @@ -72,10 +72,10 @@ start() -> PrintInvalidCommandError(), usage(); {error, Reason} -> - rabbit_misc:print_error("~p", [Reason]), + print_error("~p", [Reason]), rabbit_misc:quit(2); Other -> - rabbit_misc:print_error("~p", [Other]), + print_error("~p", [Other]), rabbit_misc:quit(2) end. @@ -394,3 +394,5 @@ report_change() -> ok end. +print_error(Format, Args) -> + rabbit_misc:format_stderr("Error: " ++ Format ++ "~n", Args). -- cgit v1.2.1 From 68ec95369595cf60285f45a1bd138242f08efd09 Mon Sep 17 00:00:00 2001 From: Alexandru Scvortov Date: Fri, 17 Feb 2012 15:54:15 +0000 Subject: bring this branch a bit closer to default --- src/rabbit_control.erl | 11 +++++------ src/rabbit_plugins.erl | 6 +++--- 2 files changed, 8 insertions(+), 9 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 144f16bd..7bba7c54 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -82,9 +82,8 @@ start() -> end, PrintInvalidCommandError = fun () -> - print_error( - "invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]) + print_error("invalid command '~s'", + [string:join([atom_to_list(Command) | Args], " ")]) end, %% The reason we don't use a try/catch here is that rpc:call turns @@ -140,12 +139,12 @@ print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> end, io:nl(). -print_badrpc_diagnostics(Node) -> - rabbit_misc:format_stderr(rabbit_nodes:diagnostics([Node]), []). - print_error(Format, Args) -> rabbit_misc:format_stderr("Error: " ++ Format ++ "~n", Args). +print_badrpc_diagnostics(Node) -> + rabbit_misc:format_stderr(rabbit_nodes:diagnostics([Node]), []). + stop() -> ok. diff --git a/src/rabbit_plugins.erl b/src/rabbit_plugins.erl index c9c48c3b..c08113fa 100644 --- a/src/rabbit_plugins.erl +++ b/src/rabbit_plugins.erl @@ -82,6 +82,9 @@ start() -> stop() -> ok. +print_error(Format, Args) -> + rabbit_misc:format_stderr("Error: " ++ Format ++ "~n", Args). + usage() -> io:format("~s", [rabbit_plugins_usage:usage()]), rabbit_misc:quit(1). @@ -393,6 +396,3 @@ report_change() -> _ -> ok end. - -print_error(Format, Args) -> - rabbit_misc:format_stderr("Error: " ++ Format ++ "~n", Args). -- cgit v1.2.1 From f66ce0e1f932fcf004456288db2342033e1b6e1d Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 21 Feb 2012 10:22:04 +0000 Subject: Minimise distance from default --- src/rabbit_plugins.erl | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/src/rabbit_plugins.erl b/src/rabbit_plugins.erl index c08113fa..87435cc7 100644 --- a/src/rabbit_plugins.erl +++ b/src/rabbit_plugins.erl @@ -57,9 +57,8 @@ start() -> Command = list_to_atom(Command0), PrintInvalidCommandError = fun () -> - print_error( - "invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]) + print_error("invalid command '~s'", + [string:join([atom_to_list(Command) | Args], " ")]) end, case catch action(Command, Args, Opts, PluginsFile, PluginsDir) of -- cgit v1.2.1 From 5d70309d6f9fd3aefd034a4cebf4d8fda438e6f3 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 21 Feb 2012 10:26:20 +0000 Subject: Tweak error messages. --- src/rabbit_nodes.erl | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/rabbit_nodes.erl b/src/rabbit_nodes.erl index 742ef6ea..0f372223 100644 --- a/src/rabbit_nodes.erl +++ b/src/rabbit_nodes.erl @@ -108,13 +108,13 @@ start_net_kernel(NodeNamePrefix) -> P -> P end, rabbit_misc:format_stderr( - "Error: epmd could not be contacted: ~p~n", [Reason]), + "~nError: epmd could not be contacted: ~p~n~n", [Reason]), rabbit_misc:format_stderr( - "Check your network setup (in particular " - "check you can contact port ~w on localhost).~n", [Port]), + "*** Check your network setup (in particular " + "check you can contact port ~w on~n*** localhost).~n~n", [Port]), rabbit_misc:quit(1); {error, Reason} -> rabbit_misc:format_stderr( - "Error: Networking failed to start: ~p~n", [Reason]), + "~nError: Networking failed to start: ~p~n", [Reason]), rabbit_misc:quit(1) end. -- cgit v1.2.1 From 8af2f4a7b4a1d8b9e8c8a056cad519963bd77d72 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 21 Feb 2012 12:31:06 +0000 Subject: Start epmd in the Windows-y way on Cygwin. --- scripts/rabbitmq-server | 8 ++++---- scripts/rabbitmqctl | 7 ++++++- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index e29ef22f..e5a197a7 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -61,16 +61,16 @@ RABBITMQ_START_RABBIT= [ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' case "$(uname -s)" in - CYGWIN*) # we make no attempt to record the cygwin pid; rabbitmqctl wait + CYGWIN*) erl -noinput -hidden -sname "epmd_${RABBITMQ_NODENAME}" -s init stop + # we make no attempt to record the cygwin pid; rabbitmqctl wait # will not be able to make sense of it anyway ;; - *) mkdir -p $(dirname ${RABBITMQ_PID_FILE}); + *) epmd -daemon || exit 1 + mkdir -p $(dirname ${RABBITMQ_PID_FILE}); echo $$ > ${RABBITMQ_PID_FILE} ;; esac -epmd -daemon || exit 1 - RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin" if [ "x" = "x$RABBITMQ_NODE_ONLY" ]; then if erl \ diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl index c962410a..e2ddc850 100755 --- a/scripts/rabbitmqctl +++ b/scripts/rabbitmqctl @@ -26,7 +26,12 @@ ##--- End of overridden variables -epmd -daemon || exit 1 +case "$(uname -s)" in + CYGWIN*) erl -noinput -hidden -sname "epmd_${RABBITMQ_NODENAME}" -s init stop + ;; + *) epmd -daemon || exit 1 + ;; +esac exec erl \ -pa "${RABBITMQ_HOME}/ebin" \ -- cgit v1.2.1 From 406e953a55ee6fd9ea9a0e047956f7b10b611cd4 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 21 Feb 2012 16:12:49 +0000 Subject: Resurrect default without bug24494. --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 5e7723ff..c369b964 100644 --- a/Makefile +++ b/Makefile @@ -350,7 +350,7 @@ $(foreach XML,$(USAGES_XML),$(eval $(call usage_dep, $(XML)))) # automatic dependency generation for that target (e.g. cleandb). # We want to load the dep file if *any* target *doesn't* contain -# "clean" - i.e. if removing all clean-like targets leaves something +# "clean" - i.e. if removing all clean-like targets leaves something. ifeq "$(MAKECMDGOALS)" "" TESTABLEGOALS:=$(.DEFAULT_GOAL) -- cgit v1.2.1 From 8abcf21293c5c2db70784121946e896a7d998876 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Sun, 26 Feb 2012 18:03:12 +0000 Subject: beginnings of dynamic configuration change by (re)reading config files --- src/rabbit.erl | 49 +++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 47 insertions(+), 2 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index dd5fb89c..3e495ece 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -19,10 +19,10 @@ -behaviour(application). -export([maybe_hipe_compile/0, prepare/0, start/0, stop/0, stop_and_halt/0, - status/0, is_running/0, is_running/1, environment/0, + change_config/0, status/0, is_running/0, is_running/1, environment/0, rotate_logs/1, force_event_refresh/0]). --export([start/2, stop/1]). +-export([start/2, stop/1, config_change/3]). -export([log_location/1]). %% for testing @@ -219,6 +219,7 @@ -spec(start/0 :: () -> 'ok'). -spec(stop/0 :: () -> 'ok'). -spec(stop_and_halt/0 :: () -> no_return()). +-spec(change_config/0 :: () -> rabbit_types:ok_or_error(any())). -spec(status/0 :: () -> [{pid, integer()} | {running_applications, [{atom(), string(), string()}]} | @@ -240,6 +241,8 @@ {'required',[any(),...]}}} | {'ok',pid()}). -spec(stop/1 :: (_) -> 'ok'). +-spec(config_change/3 :: + ([{param(), term()}], [{param(), term()}], [param{}]) -> 'ok'). -spec(maybe_insert_default_data/0 :: () -> 'ok'). -spec(boot_delegate/0 :: () -> 'ok'). @@ -316,6 +319,23 @@ stop_and_halt() -> end, ok. +change_config() -> + EnvBefore = application_controller:prep_config_change(), + AppSpecL = [begin + {ok, [AppSpec]} = file:consult( + code:where_is_file( + atom_to_list(App) ++ ".app")), + AppSpec + end || {App, _,_} <- application:which_applications()], + ConfFiles = case init:get_argument(config) of + {ok, Files} -> [File || [File] <- Files]; + error -> [] + end, + case application_controller:change_application_data(AppSpecL, ConfFiles) of + ok -> application_controller:config_change(EnvBefore); + {error, Reason} -> {error, Reason} + end. + status() -> S1 = [{pid, list_to_integer(os:getpid())}, {running_applications, application:which_applications(infinity)}, @@ -388,6 +408,24 @@ stop(_State) -> end, ok. +config_change(Changed, [], []) -> + case lists:flatmap(fun ({Param, Val}) -> case change_param(Param, Val) of + ok -> []; + {error, Error} -> [Error] + end + end, Changed) of + [] -> ok; + Errors -> {error, Errors} + end; + +config_change(Changed, New, Removed) -> + {error, [{unexpected_new_or_removed_rabbit_application_parameters, + {new, New}, {removed, Removed}} | + case config_change(Changed, [], []) of + ok -> []; + {error, Errors} -> Errors + end]}. + %%--------------------------------------------------------------------------- %% application life cycle @@ -564,6 +602,13 @@ insert_default_data() -> DefaultReadPerm), ok. +%%--------------------------------------------------------------------------- +%% config change + +change_param(Param, Val) -> + io:format("changing param ~p to ~p~n", [Param, Val]), + ok. + %%--------------------------------------------------------------------------- %% logging -- cgit v1.2.1 From e39921d017730368764fdd190bc8dce74f9e6850 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 9 Mar 2012 16:12:54 +0000 Subject: Soft error if exchange type not found. --- src/rabbit_exchange.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 83e28c44..1762dc52 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -154,11 +154,11 @@ check_type(TypeBin) -> case rabbit_registry:binary_to_type(TypeBin) of {error, not_found} -> rabbit_misc:protocol_error( - command_invalid, "unknown exchange type '~s'", [TypeBin]); + not_found, "unknown exchange type '~s'", [TypeBin]); T -> case rabbit_registry:lookup_module(exchange, T) of {error, not_found} -> rabbit_misc:protocol_error( - command_invalid, + not_found, "invalid exchange type '~s'", [T]); {ok, _Module} -> T end -- cgit v1.2.1 From 3755208d353dc675e283e799740ad0897a4c75fd Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 29 Mar 2012 17:00:11 +0100 Subject: Rename this, at least for public consumption. --- ebin/rabbit_app.in | 2 +- src/rabbit.erl | 2 +- src/rabbit_alarm.erl | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in index 0cdfe70f..b6087948 100644 --- a/ebin/rabbit_app.in +++ b/ebin/rabbit_app.in @@ -19,7 +19,7 @@ {ssl_listeners, []}, {ssl_options, []}, {vm_memory_high_watermark, 0.4}, - {disk_free_limit, {mem_relative, 1.8}}, + {disk_free_low_watermark, {mem_relative, 1.8}}, {msg_store_index_module, rabbit_msg_store_ets_index}, {backing_queue_module, rabbit_variable_queue}, {frame_max, 131072}, diff --git a/src/rabbit.erl b/src/rabbit.erl index eec7e34e..0660e8bc 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -328,7 +328,7 @@ status() -> get_vm_memory_high_watermark, []}}, {vm_memory_limit, {vm_memory_monitor, get_memory_limit, []}}, - {disk_free_limit, {rabbit_disk_monitor, + {disk_free_low_watermark, {rabbit_disk_monitor, get_disk_free_limit, []}}, {disk_free, {rabbit_disk_monitor, get_disk_free, []}}]), diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index f5e098c5..34c4da74 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -46,7 +46,7 @@ start() -> {ok, MemoryWatermark} = application:get_env(vm_memory_high_watermark), rabbit_sup:start_restartable_child(vm_memory_monitor, [MemoryWatermark]), - {ok, DiskLimit} = application:get_env(disk_free_limit), + {ok, DiskLimit} = application:get_env(disk_free_low_watermark), rabbit_sup:start_restartable_child(rabbit_disk_monitor, [DiskLimit]), ok. -- cgit v1.2.1 From 18d3a89d1d6cb36629782a73207c1d8f8e8c6978 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 4 Apr 2012 11:03:22 +0100 Subject: Discarding delivery when detecting DLX cycle. --- src/rabbit_amqqueue_process.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 7c1e4573..4fc95d91 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1216,7 +1216,7 @@ handle_cast({deliver, Delivery = #delivery{sender = Sender, false -> noreply(deliver_or_enqueue(Delivery, State)); Qs -> log_cycle_once(Qs), rabbit_misc:confirm_to_sender(Sender, [MsgSeqNo]), - noreply(State) + noreply(discard_delivery(Delivery, State)) end; handle_cast({ack, AckTags, ChPid}, State) -> -- cgit v1.2.1 From 6907941426462d3ac56e243508953c3f0f31f0f7 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Thu, 12 Apr 2012 17:56:48 +0100 Subject: Acking in reject, requeue=false --- src/rabbit_amqqueue_process.erl | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 222045b2..d6b6ff22 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1243,7 +1243,8 @@ handle_cast({reject, AckTags, Requeue, ChPid}, State) -> false -> Fun = dead_letter_fun(rejected, State), fun (State1 = #q{backing_queue = BQ, backing_queue_state = BQS}) -> - BQS1 = BQ:fold(Fun, BQS, AckTags), + BQS1 = BQ:fold(Fun, BQS, AckTags), + {_Guids, BQS2} = BQ:ack(AckTags, BQS1), State1#q{backing_queue_state = BQS1} end end)); -- cgit v1.2.1 From 9391cd5cf7d1dcc13303cc6733d27f7833ad4352 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Thu, 12 Apr 2012 18:01:13 +0100 Subject: Wrong variable --- src/rabbit_amqqueue_process.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index d6b6ff22..53f15838 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1245,7 +1245,7 @@ handle_cast({reject, AckTags, Requeue, ChPid}, State) -> backing_queue_state = BQS}) -> BQS1 = BQ:fold(Fun, BQS, AckTags), {_Guids, BQS2} = BQ:ack(AckTags, BQS1), - State1#q{backing_queue_state = BQS1} + State1#q{backing_queue_state = BQS2} end end)); -- cgit v1.2.1 From 1c229e10c07f6510d336c0b5a8fb80f49ef07233 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Thu, 12 Apr 2012 18:39:03 +0100 Subject: Not acking when we have DLX. Doing the fold in dead_letter_fun is not possible since we use it with dropwhile in drop_expired_messages. --- src/rabbit_amqqueue_process.erl | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 53f15838..5f2c9e40 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1239,14 +1239,22 @@ handle_cast({reject, AckTags, Requeue, ChPid}, State) -> noreply(subtract_acks( ChPid, AckTags, State, case Requeue of - true -> fun (State1) -> requeue_and_run(AckTags, State1) end; - false -> Fun = dead_letter_fun(rejected, State), - fun (State1 = #q{backing_queue = BQ, - backing_queue_state = BQS}) -> - BQS1 = BQ:fold(Fun, BQS, AckTags), - {_Guids, BQS2} = BQ:ack(AckTags, BQS1), - State1#q{backing_queue_state = BQS2} - end + true -> + fun (State1) -> requeue_and_run(AckTags, State1) end; + false -> + Fun = dead_letter_fun(rejected, State), + fun (State1 = #q{backing_queue = BQ, + backing_queue_state = BQS, + dlx = DLX}) -> + BQS1 = BQ:fold(Fun, BQS, AckTags), + BQS2 = case DLX of + undefined -> {_Guids, BQS3} = + BQ:ack(AckTags, BQS1), + BQS3; + _ -> BQS1 + end, + State1#q{backing_queue_state = BQS2} + end end)); handle_cast(delete_immediately, State) -> -- cgit v1.2.1 From 994399acb4161a3b4356afeafde10c4dec2466ac Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Fri, 13 Apr 2012 11:23:10 +0100 Subject: Separate function for acking nacked messages. Being Italian, I'm a specialist in pasta. --- src/rabbit_amqqueue_process.erl | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 5f2c9e40..677b0764 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -713,6 +713,14 @@ ensure_ttl_timer(State = #q{backing_queue = BQ, ensure_ttl_timer(State) -> State. +ack_nacked_messages(AckTags, State = #q{dlx = undefined, + backing_queue = BQ, + backing_queue_state = BQS }) -> + {_Guids, BQS1} = BQ:ack(AckTags, BQS), + State#q{backing_queue_state = BQS1}; +ack_nacked_messages(_AckTags, State) -> + State. + dead_letter_fun(_Reason, #q{dlx = undefined}) -> undefined; dead_letter_fun(Reason, _State) -> @@ -1244,16 +1252,10 @@ handle_cast({reject, AckTags, Requeue, ChPid}, State) -> false -> Fun = dead_letter_fun(rejected, State), fun (State1 = #q{backing_queue = BQ, - backing_queue_state = BQS, - dlx = DLX}) -> + backing_queue_state = BQS}) -> BQS1 = BQ:fold(Fun, BQS, AckTags), - BQS2 = case DLX of - undefined -> {_Guids, BQS3} = - BQ:ack(AckTags, BQS1), - BQS3; - _ -> BQS1 - end, - State1#q{backing_queue_state = BQS2} + ack_nacked_messages( + AckTags, State1#q{backing_queue_state = BQS1}) end end)); -- cgit v1.2.1 From 11deff7db424c09619bee90c3a68d677f13a5de1 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 13 Apr 2012 13:18:48 +0100 Subject: Simple reversion to passive mode, without dismantling any of the buffering machinery. --- src/rabbit_net.erl | 14 ++------------ src/rabbit_reader.erl | 25 ++++++++++++++++++------- 2 files changed, 20 insertions(+), 19 deletions(-) diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl index e6a05335..3faffa81 100644 --- a/src/rabbit_net.erl +++ b/src/rabbit_net.erl @@ -90,18 +90,8 @@ getstat(Sock, Stats) when ?IS_SSL(Sock) -> getstat(Sock, Stats) when is_port(Sock) -> inet:getstat(Sock, Stats). -recv(Sock) when ?IS_SSL(Sock) -> - recv(Sock#ssl_socket.ssl, {ssl, ssl_closed, ssl_error}); -recv(Sock) when is_port(Sock) -> - recv(Sock, {tcp, tcp_closed, tcp_error}). - -recv(S, {DataTag, ClosedTag, ErrorTag}) -> - receive - {DataTag, S, Data} -> {data, Data}; - {ClosedTag, S} -> closed; - {ErrorTag, S, Reason} -> {error, Reason}; - Other -> {other, Other} - end. +recv(Sock) when ?IS_SSL(Sock) -> ssl:recv(Sock#ssl_socket.ssl, 0); +recv(Sock) when is_port(Sock) -> gen_tcp:recv(Sock, 0). async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> Pid = self(), diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 5e9e78d3..7c5d3cd7 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -191,6 +191,7 @@ name(Sock) -> start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, Sock, SockTransform) -> process_flag(trap_exit, true), + ok = rabbit_net:setopts(Sock, [{active, false}]), ConnStr = name(Sock), log(info, "accepting AMQP connection ~p (~s)~n", [self(), ConnStr]), ClientSock = socket_op(Sock, SockTransform), @@ -250,9 +251,8 @@ recvloop(Deb, State = #v1{pending_recv = true}) -> mainloop(Deb, State); recvloop(Deb, State = #v1{connection_state = blocked}) -> mainloop(Deb, State); -recvloop(Deb, State = #v1{sock = Sock, recv_len = RecvLen, buf_len = BufLen}) +recvloop(Deb, State = #v1{recv_len = RecvLen, buf_len = BufLen}) when BufLen < RecvLen -> - ok = rabbit_net:setopts(Sock, [{active, once}]), mainloop(Deb, State#v1{pending_recv = true}); recvloop(Deb, State = #v1{recv_len = RecvLen, buf = Buf, buf_len = BufLen}) -> {Data, Rest} = split_binary(case Buf of @@ -263,17 +263,28 @@ recvloop(Deb, State = #v1{recv_len = RecvLen, buf = Buf, buf_len = BufLen}) -> State#v1{buf = [Rest], buf_len = BufLen - RecvLen})). -mainloop(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen}) -> +mainloop(Deb, State = #v1{connection_state = CState}) -> + case CState of + blocked -> receive + Msg -> handle_other(Msg, Deb, State) + end; + _ -> receive + Msg -> handle_other(Msg, Deb, State) + after 0 -> + mainloop0(Deb, State) + end + end. + +mainloop0(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen}) -> case rabbit_net:recv(Sock) of - {data, Data} -> recvloop(Deb, State#v1{buf = [Data | Buf], + {ok, Data} -> recvloop(Deb, State#v1{buf = [Data | Buf], buf_len = BufLen + size(Data), pending_recv = false}); - closed -> case State#v1.connection_state of + {error, closed} -> case State#v1.connection_state of closed -> State; _ -> throw(connection_closed_abruptly) end; - {error, Reason} -> throw({inet_error, Reason}); - {other, Other} -> handle_other(Other, Deb, State) + {error, Reason} -> throw({inet_error, Reason}) end. handle_other({conserve_resources, Conserve}, Deb, State) -> -- cgit v1.2.1 From 96ce0df6411752c2c7654cfc1d493363b5ba50e3 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 13 Apr 2012 15:28:27 +0100 Subject: Attempt at "smart" buffering, at the cost of adding a magic number. --- src/rabbit_net.erl | 8 ++++---- src/rabbit_reader.erl | 16 ++++++++++++++-- 2 files changed, 18 insertions(+), 6 deletions(-) diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl index 3faffa81..f23154e9 100644 --- a/src/rabbit_net.erl +++ b/src/rabbit_net.erl @@ -18,7 +18,7 @@ -include("rabbit.hrl"). -export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - recv/1, async_recv/3, port_command/2, setopts/2, send/2, close/1, + recv/2, async_recv/3, port_command/2, setopts/2, send/2, close/1, maybe_fast_close/1, sockname/1, peername/1, peercert/1, connection_string/2]). @@ -43,7 +43,7 @@ -spec(getstat/2 :: (socket(), [stat_option()]) -> ok_val_or_error([{stat_option(), integer()}])). --spec(recv/1 :: (socket()) -> +-spec(recv/2 :: (socket(), non_neg_integer()) -> {'data', [char()] | binary()} | 'closed' | rabbit_types:error(any()) | {'other', any()}). -spec(async_recv/3 :: @@ -90,8 +90,8 @@ getstat(Sock, Stats) when ?IS_SSL(Sock) -> getstat(Sock, Stats) when is_port(Sock) -> inet:getstat(Sock, Stats). -recv(Sock) when ?IS_SSL(Sock) -> ssl:recv(Sock#ssl_socket.ssl, 0); -recv(Sock) when is_port(Sock) -> gen_tcp:recv(Sock, 0). +recv(Sock, Count) when ?IS_SSL(Sock) -> ssl:recv(Sock#ssl_socket.ssl, Count); +recv(Sock, Count) when is_port(Sock) -> gen_tcp:recv(Sock, Count). async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> Pid = self(), diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 7c5d3cd7..75524a0f 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -275,8 +275,20 @@ mainloop(Deb, State = #v1{connection_state = CState}) -> end end. -mainloop0(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen}) -> - case rabbit_net:recv(Sock) of +mainloop0(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen, + recv_len = RecvLen}) -> + %% If we are mainly dealing with small messages we want to request + %% "as much as you can give us" (which will typically work out to + %% the Maximum Segment Size) so as to not use too many + %% syscalls. But if we are dealing with larger messages we want to + %% request the exact length (which will typically be larger than + %% the MSS, i.e. gen_tcp:recv will wait) so that we don't have to + %% reassemble too much. + Req = case RecvLen > 1460 of + true -> RecvLen; + false -> 0 + end, + case rabbit_net:recv(Sock, Req) of {ok, Data} -> recvloop(Deb, State#v1{buf = [Data | Buf], buf_len = BufLen + size(Data), pending_recv = false}); -- cgit v1.2.1 From ec8930a3640a512549b5781422289e16ae5d79f9 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 13 Apr 2012 17:34:31 +0100 Subject: ...and eliminate use of a magic number, at the cost of some bookkeeping. --- src/rabbit_reader.erl | 30 +++++++++++++++++++++--------- 1 file changed, 21 insertions(+), 9 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 75524a0f..b658b72a 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -37,7 +37,7 @@ -record(v1, {parent, sock, connection, callback, recv_len, pending_recv, connection_state, queue_collector, heartbeater, stats_timer, - channel_sup_sup_pid, start_heartbeat_fun, buf, buf_len, + channel_sup_sup_pid, start_heartbeat_fun, buf, buf_len, mss_est, auth_mechanism, auth_state, conserve_resources, last_blocked_by, last_blocked_at}). @@ -276,7 +276,7 @@ mainloop(Deb, State = #v1{connection_state = CState}) -> end. mainloop0(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen, - recv_len = RecvLen}) -> + recv_len = RecvLen, mss_est = MSSEst}) -> %% If we are mainly dealing with small messages we want to request %% "as much as you can give us" (which will typically work out to %% the Maximum Segment Size) so as to not use too many @@ -284,13 +284,25 @@ mainloop0(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen, %% request the exact length (which will typically be larger than %% the MSS, i.e. gen_tcp:recv will wait) so that we don't have to %% reassemble too much. - Req = case RecvLen > 1460 of - true -> RecvLen; - false -> 0 - end, - case rabbit_net:recv(Sock, Req) of - {ok, Data} -> recvloop(Deb, State#v1{buf = [Data | Buf], - buf_len = BufLen + size(Data), + %% + %% We try to estimate the MSS by keeping track of the largest + %% number of bytes we have got back from rabbit_net:recv/2 when + %% Count = 0. + Count = case RecvLen =< MSSEst of %% true when MSSEst =:= undefined + true -> 0; + false -> RecvLen + end, + case rabbit_net:recv(Sock, Count) of + {ok, Data} -> Size = size(Data), + MSSEst1 = + case {Count, MSSEst} of + {_, undefined} -> Size; + {0, _} -> erlang:max(MSSEst, Size); + _ -> MSSEst + end, + recvloop(Deb, State#v1{buf = [Data | Buf], + buf_len = BufLen + Size, + mss_est = MSSEst1, pending_recv = false}); {error, closed} -> case State#v1.connection_state of closed -> State; -- cgit v1.2.1 From 27f6c3a8a3363ad95676f4d4b2cf9d8c2f6117fe Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Mon, 16 Apr 2012 14:43:01 +0100 Subject: Returning primary key and value when SKS empty. --- src/dtree.erl | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/src/dtree.erl b/src/dtree.erl index 67bbbc1b..78c88089 100644 --- a/src/dtree.erl +++ b/src/dtree.erl @@ -135,11 +135,11 @@ take2(PKS, SK, P) -> gb_sets:fold(fun (PK, {KVs, P0}) -> {SKS, V} = gb_trees:get(PK, P0), SKS1 = gb_sets:delete(SK, SKS), - case gb_sets:is_empty(SKS1) of - true -> KVs1 = [{PK, V} | KVs], - {KVs1, gb_trees:delete(PK, P0)}; - false -> {KVs, gb_trees:update(PK, {SKS1, V}, P0)} - end + {[{PK, V} | KVs], + case gb_sets:is_empty(SKS1) of + true -> gb_trees:delete(PK, P0); + false -> gb_trees:update(PK, {SKS1, V}, P0) + end} end, {[], P}, PKS). take_all2(PKS, P) -> -- cgit v1.2.1 From 74556efca1f6a5b63a76cff6c82625c7b5104c5f Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 16 Apr 2012 15:06:45 +0100 Subject: gen_tcp:recv/2 to prim_inet:async_recv/3, and try not to block the reader. --- src/rabbit_net.erl | 8 +---- src/rabbit_reader.erl | 94 +++++++++++++++++++++++++-------------------------- 2 files changed, 47 insertions(+), 55 deletions(-) diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl index f23154e9..98826415 100644 --- a/src/rabbit_net.erl +++ b/src/rabbit_net.erl @@ -18,7 +18,7 @@ -include("rabbit.hrl"). -export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - recv/2, async_recv/3, port_command/2, setopts/2, send/2, close/1, + async_recv/3, port_command/2, setopts/2, send/2, close/1, maybe_fast_close/1, sockname/1, peername/1, peercert/1, connection_string/2]). @@ -43,9 +43,6 @@ -spec(getstat/2 :: (socket(), [stat_option()]) -> ok_val_or_error([{stat_option(), integer()}])). --spec(recv/2 :: (socket(), non_neg_integer()) -> - {'data', [char()] | binary()} | 'closed' | - rabbit_types:error(any()) | {'other', any()}). -spec(async_recv/3 :: (socket(), integer(), timeout()) -> rabbit_types:ok(any())). -spec(port_command/2 :: (socket(), iolist()) -> 'true'). @@ -90,9 +87,6 @@ getstat(Sock, Stats) when ?IS_SSL(Sock) -> getstat(Sock, Stats) when is_port(Sock) -> inet:getstat(Sock, Stats). -recv(Sock, Count) when ?IS_SSL(Sock) -> ssl:recv(Sock#ssl_socket.ssl, Count); -recv(Sock, Count) when is_port(Sock) -> gen_tcp:recv(Sock, Count). - async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> Pid = self(), Ref = make_ref(), diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index b658b72a..ff1462fe 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -35,7 +35,7 @@ %%-------------------------------------------------------------------------- --record(v1, {parent, sock, connection, callback, recv_len, pending_recv, +-record(v1, {parent, sock, connection, callback, recv_len, recv_ref, connection_state, queue_collector, heartbeater, stats_timer, channel_sup_sup_pid, start_heartbeat_fun, buf, buf_len, mss_est, auth_mechanism, auth_state, conserve_resources, @@ -209,7 +209,7 @@ start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, capabilities = []}, callback = uninitialized_callback, recv_len = 0, - pending_recv = false, + recv_ref = none, connection_state = pre_init, queue_collector = Collector, heartbeater = none, @@ -247,13 +247,26 @@ start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, end, done. -recvloop(Deb, State = #v1{pending_recv = true}) -> +recvloop(Deb, State = #v1{recv_ref = Ref}) when Ref =/= none -> mainloop(Deb, State); recvloop(Deb, State = #v1{connection_state = blocked}) -> mainloop(Deb, State); recvloop(Deb, State = #v1{recv_len = RecvLen, buf_len = BufLen}) when BufLen < RecvLen -> - mainloop(Deb, State#v1{pending_recv = true}); + %% If we are mainly dealing with small messages we want to request + %% "as much as you can give us" (which will typically work out to + %% the Maximum Segment Size) so as to not use too many + %% syscalls. But if we are dealing with larger messages we want to + %% request the exact length (which will typically be larger than + %% the MSS, i.e. gen_tcp:recv will wait) so that we don't have to + %% reassemble too much. + %% + %% We try to estimate the MSS by keeping track of the largest + %% number of bytes we have got back when bytes_wanted/1 = 0. + Ref = inet_op(fun () -> + rabbit_net:async_recv( + State#v1.sock, bytes_wanted(State), infinity) end), + mainloop(Deb, State#v1{recv_ref = Ref}); recvloop(Deb, State = #v1{recv_len = RecvLen, buf = Buf, buf_len = BufLen}) -> {Data, Rest} = split_binary(case Buf of [B] -> B; @@ -263,52 +276,37 @@ recvloop(Deb, State = #v1{recv_len = RecvLen, buf = Buf, buf_len = BufLen}) -> State#v1{buf = [Rest], buf_len = BufLen - RecvLen})). -mainloop(Deb, State = #v1{connection_state = CState}) -> - case CState of - blocked -> receive - Msg -> handle_other(Msg, Deb, State) - end; - _ -> receive - Msg -> handle_other(Msg, Deb, State) - after 0 -> - mainloop0(Deb, State) - end +mainloop(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen, + recv_ref = Ref, mss_est = MSSEst}) -> + receive + {inet_async, Sock, Ref, {ok, Data}} -> + Size = size(Data), + MSSEst1 = + case {bytes_wanted(State), MSSEst} of + {_, undefined} -> Size; + {0, _} -> erlang:max(MSSEst, Size); + _ -> MSSEst + end, + recvloop(Deb, State#v1{buf = [Data | Buf], + buf_len = BufLen + Size, + mss_est = MSSEst1, + recv_ref = none + }); + {inet_async, Sock, Ref, {error, closed}} -> + case State#v1.connection_state of + closed -> State; + _ -> throw(connection_closed_abruptly) + end; + {inet_async, Sock, Ref, {error, Reason}} -> + throw({inet_error, Reason}); + Msg -> + handle_other(Msg, Deb, State) end. -mainloop0(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen, - recv_len = RecvLen, mss_est = MSSEst}) -> - %% If we are mainly dealing with small messages we want to request - %% "as much as you can give us" (which will typically work out to - %% the Maximum Segment Size) so as to not use too many - %% syscalls. But if we are dealing with larger messages we want to - %% request the exact length (which will typically be larger than - %% the MSS, i.e. gen_tcp:recv will wait) so that we don't have to - %% reassemble too much. - %% - %% We try to estimate the MSS by keeping track of the largest - %% number of bytes we have got back from rabbit_net:recv/2 when - %% Count = 0. - Count = case RecvLen =< MSSEst of %% true when MSSEst =:= undefined - true -> 0; - false -> RecvLen - end, - case rabbit_net:recv(Sock, Count) of - {ok, Data} -> Size = size(Data), - MSSEst1 = - case {Count, MSSEst} of - {_, undefined} -> Size; - {0, _} -> erlang:max(MSSEst, Size); - _ -> MSSEst - end, - recvloop(Deb, State#v1{buf = [Data | Buf], - buf_len = BufLen + Size, - mss_est = MSSEst1, - pending_recv = false}); - {error, closed} -> case State#v1.connection_state of - closed -> State; - _ -> throw(connection_closed_abruptly) - end; - {error, Reason} -> throw({inet_error, Reason}) +bytes_wanted(#v1{recv_len = RecvLen, mss_est = MSSEst}) -> + case RecvLen =< MSSEst of %% true when MSSEst =:= undefined + true -> 0; + false -> RecvLen end. handle_other({conserve_resources, Conserve}, Deb, State) -> -- cgit v1.2.1 From 3f2a70c2eb5293b04fff6d90d58d77ade6213e45 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 16 Apr 2012 15:13:02 +0100 Subject: Introduce an abstraction, be more like default. --- src/rabbit_net.erl | 13 ++++++++++++- src/rabbit_reader.erl | 42 +++++++++++++++++++----------------------- 2 files changed, 31 insertions(+), 24 deletions(-) diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl index 98826415..69c03db0 100644 --- a/src/rabbit_net.erl +++ b/src/rabbit_net.erl @@ -18,7 +18,7 @@ -include("rabbit.hrl"). -export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - async_recv/3, port_command/2, setopts/2, send/2, close/1, + recv/2, async_recv/3, port_command/2, setopts/2, send/2, close/1, maybe_fast_close/1, sockname/1, peername/1, peercert/1, connection_string/2]). @@ -43,6 +43,9 @@ -spec(getstat/2 :: (socket(), [stat_option()]) -> ok_val_or_error([{stat_option(), integer()}])). +-spec(recv/2 :: (socket(), non_neg_integer()) -> + {'data', [char()] | binary()} | 'closed' | + rabbit_types:error(any()) | {'other', any()}). -spec(async_recv/3 :: (socket(), integer(), timeout()) -> rabbit_types:ok(any())). -spec(port_command/2 :: (socket(), iolist()) -> 'true'). @@ -87,6 +90,14 @@ getstat(Sock, Stats) when ?IS_SSL(Sock) -> getstat(Sock, Stats) when is_port(Sock) -> inet:getstat(Sock, Stats). +recv(Sock, Ref) -> + receive + {inet_async, Sock, Ref, {ok, Data}} -> {data, Data}; + {inet_async, Sock, Ref, {error, closed}} -> closed; + {inet_async, Sock, Ref, {error, Reason}} -> {error, Reason}; + Other -> {other, Other} + end. + async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> Pid = self(), Ref = make_ref(), diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index ff1462fe..53ccdf54 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -278,29 +278,25 @@ recvloop(Deb, State = #v1{recv_len = RecvLen, buf = Buf, buf_len = BufLen}) -> mainloop(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen, recv_ref = Ref, mss_est = MSSEst}) -> - receive - {inet_async, Sock, Ref, {ok, Data}} -> - Size = size(Data), - MSSEst1 = - case {bytes_wanted(State), MSSEst} of - {_, undefined} -> Size; - {0, _} -> erlang:max(MSSEst, Size); - _ -> MSSEst - end, - recvloop(Deb, State#v1{buf = [Data | Buf], - buf_len = BufLen + Size, - mss_est = MSSEst1, - recv_ref = none - }); - {inet_async, Sock, Ref, {error, closed}} -> - case State#v1.connection_state of - closed -> State; - _ -> throw(connection_closed_abruptly) - end; - {inet_async, Sock, Ref, {error, Reason}} -> - throw({inet_error, Reason}); - Msg -> - handle_other(Msg, Deb, State) + case rabbit_net:recv(Sock, Ref) of + {data, Data} -> Size = size(Data), + MSSEst1 = + case {bytes_wanted(State), MSSEst} of + {_, undefined} -> Size; + {0, _} -> erlang:max(MSSEst, Size); + _ -> MSSEst + end, + recvloop(Deb, State#v1{buf = [Data | Buf], + buf_len = BufLen + Size, + mss_est = MSSEst1, + recv_ref = none + }); + closed -> case State#v1.connection_state of + closed -> State; + _ -> throw(connection_closed_abruptly) + end; + {error, Reason} -> throw({inet_error, Reason}); + {other, Other} -> handle_other(Other, Deb, State) end. bytes_wanted(#v1{recv_len = RecvLen, mss_est = MSSEst}) -> -- cgit v1.2.1 From 05450f6bc9bb4826d5aa40c19bf42f60c6bc2f07 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 16 Apr 2012 16:40:08 +0100 Subject: Not needed any more --- src/rabbit_net.erl | 10 +--------- src/rabbit_reader.erl | 1 - 2 files changed, 1 insertion(+), 10 deletions(-) diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl index 69c03db0..3d48ba53 100644 --- a/src/rabbit_net.erl +++ b/src/rabbit_net.erl @@ -18,7 +18,7 @@ -include("rabbit.hrl"). -export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - recv/2, async_recv/3, port_command/2, setopts/2, send/2, close/1, + recv/2, async_recv/3, port_command/2, send/2, close/1, maybe_fast_close/1, sockname/1, peername/1, peercert/1, connection_string/2]). @@ -49,9 +49,6 @@ -spec(async_recv/3 :: (socket(), integer(), timeout()) -> rabbit_types:ok(any())). -spec(port_command/2 :: (socket(), iolist()) -> 'true'). --spec(setopts/2 :: (socket(), [{atom(), any()} | - {raw, non_neg_integer(), non_neg_integer(), - binary()}]) -> ok_or_any_error()). -spec(send/2 :: (socket(), binary() | iolist()) -> ok_or_any_error()). -spec(close/1 :: (socket()) -> ok_or_any_error()). -spec(maybe_fast_close/1 :: (socket()) -> ok_or_any_error()). @@ -121,11 +118,6 @@ port_command(Sock, Data) when ?IS_SSL(Sock) -> port_command(Sock, Data) when is_port(Sock) -> erlang:port_command(Sock, Data). -setopts(Sock, Options) when ?IS_SSL(Sock) -> - ssl:setopts(Sock#ssl_socket.ssl, Options); -setopts(Sock, Options) when is_port(Sock) -> - inet:setopts(Sock, Options). - send(Sock, Data) when ?IS_SSL(Sock) -> ssl:send(Sock#ssl_socket.ssl, Data); send(Sock, Data) when is_port(Sock) -> gen_tcp:send(Sock, Data). diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 53ccdf54..c51245ad 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -191,7 +191,6 @@ name(Sock) -> start_connection(Parent, ChannelSupSupPid, Collector, StartHeartbeatFun, Deb, Sock, SockTransform) -> process_flag(trap_exit, true), - ok = rabbit_net:setopts(Sock, [{active, false}]), ConnStr = name(Sock), log(info, "accepting AMQP connection ~p (~s)~n", [self(), ConnStr]), ClientSock = socket_op(Sock, SockTransform), -- cgit v1.2.1 From 960f3bb4363dec5a4aa54577e8d623a608cac4ae Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 16 Apr 2012 17:11:24 +0100 Subject: This is, uh, more correct, and the FrameMax test no longer hangs... --- src/rabbit_reader.erl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index c51245ad..fb4b0346 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -298,10 +298,10 @@ mainloop(Deb, State = #v1{sock = Sock, buf = Buf, buf_len = BufLen, {other, Other} -> handle_other(Other, Deb, State) end. -bytes_wanted(#v1{recv_len = RecvLen, mss_est = MSSEst}) -> - case RecvLen =< MSSEst of %% true when MSSEst =:= undefined +bytes_wanted(#v1{recv_len = RecvLen, buf_len = BufLen, mss_est = MSSEst}) -> + case RecvLen - BufLen =< MSSEst of %% true when MSSEst =:= undefined true -> 0; - false -> RecvLen + false -> RecvLen - BufLen end. handle_other({conserve_resources, Conserve}, Deb, State) -> -- cgit v1.2.1 From 456f516b637eb5aec7c83d153ea3ee27f131e2b4 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 16 Apr 2012 17:37:58 +0100 Subject: I assume that had been intended as an optimisation, but I have no idea how it was meant to work. Removing it makes this branch a bit faster than default rather than slower for SSL. --- src/rabbit_net.erl | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl index 3d48ba53..c894afb4 100644 --- a/src/rabbit_net.erl +++ b/src/rabbit_net.erl @@ -96,12 +96,10 @@ recv(Sock, Ref) -> end. async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> - Pid = self(), Ref = make_ref(), - spawn(fun () -> Pid ! {inet_async, Sock, Ref, - ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)} - end), + self() ! {inet_async, Sock, Ref, + ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)}, {ok, Ref}; async_recv(Sock, Length, infinity) when is_port(Sock) -> -- cgit v1.2.1 From a713b7da93e69358ff94d6f56e2d625ec38a605f Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 16 Apr 2012 18:11:05 +0100 Subject: Umm, no. That spawn was there to make it *async*. Wake up. So let's try having a buddy process rather than spawning on every packet. This is a bit faster than the spawn machine gun but not as fast as the blocking version - amazingly. --- src/rabbit_net.erl | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl index c894afb4..cd0f866b 100644 --- a/src/rabbit_net.erl +++ b/src/rabbit_net.erl @@ -97,16 +97,27 @@ recv(Sock, Ref) -> async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> Ref = make_ref(), - - self() ! {inet_async, Sock, Ref, - ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)}, - + Buddy = case get(ssl_buddy) of + undefined -> B = spawn_link(fun ssl_buddy_loop/0), + put(ssl_buddy, B), + B; + B -> B + end, + Buddy ! {recv, self(), Sock, Ref, Length, Timeout}, {ok, Ref}; async_recv(Sock, Length, infinity) when is_port(Sock) -> prim_inet:async_recv(Sock, Length, -1); async_recv(Sock, Length, Timeout) when is_port(Sock) -> prim_inet:async_recv(Sock, Length, Timeout). +ssl_buddy_loop() -> + receive + {recv, Pid, Sock, Ref, Length, Timeout} -> + Pid ! {inet_async, Sock, Ref, + ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)}, + ssl_buddy_loop() + end. + port_command(Sock, Data) when ?IS_SSL(Sock) -> case ssl:send(Sock#ssl_socket.ssl, Data) of ok -> self() ! {inet_reply, Sock, ok}, -- cgit v1.2.1 From 0e307955ba806c96f6081447cc55a38a17d73b8c Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Tue, 17 Apr 2012 14:01:02 +0100 Subject: cosmetic --- src/rabbit_reader.erl | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index fb4b0346..a4b40aa0 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -250,7 +250,7 @@ recvloop(Deb, State = #v1{recv_ref = Ref}) when Ref =/= none -> mainloop(Deb, State); recvloop(Deb, State = #v1{connection_state = blocked}) -> mainloop(Deb, State); -recvloop(Deb, State = #v1{recv_len = RecvLen, buf_len = BufLen}) +recvloop(Deb, State = #v1{sock = Sock, recv_len = RecvLen, buf_len = BufLen}) when BufLen < RecvLen -> %% If we are mainly dealing with small messages we want to request %% "as much as you can give us" (which will typically work out to @@ -262,9 +262,8 @@ recvloop(Deb, State = #v1{recv_len = RecvLen, buf_len = BufLen}) %% %% We try to estimate the MSS by keeping track of the largest %% number of bytes we have got back when bytes_wanted/1 = 0. - Ref = inet_op(fun () -> - rabbit_net:async_recv( - State#v1.sock, bytes_wanted(State), infinity) end), + Len = bytes_wanted(State), + Ref = inet_op(fun () -> rabbit_net:async_recv(Sock, Len, infinity) end), mainloop(Deb, State#v1{recv_ref = Ref}); recvloop(Deb, State = #v1{recv_len = RecvLen, buf = Buf, buf_len = BufLen}) -> {Data, Rest} = split_binary(case Buf of -- cgit v1.2.1 From 44ac8751d7d50a3a9b6f4e87ed3762057be6c4b4 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 17 Apr 2012 14:16:58 +0100 Subject: Revert to {active,once} for ssl, tweak API since we can only have infinity timeout now. --- src/rabbit_net.erl | 42 ++++++++++++++++-------------------------- src/rabbit_reader.erl | 2 +- 2 files changed, 17 insertions(+), 27 deletions(-) diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl index cd0f866b..0d27da88 100644 --- a/src/rabbit_net.erl +++ b/src/rabbit_net.erl @@ -18,7 +18,7 @@ -include("rabbit.hrl"). -export([is_ssl/1, ssl_info/1, controlling_process/2, getstat/2, - recv/2, async_recv/3, port_command/2, send/2, close/1, + recv/2, async_recv/2, port_command/2, send/2, close/1, maybe_fast_close/1, sockname/1, peername/1, peercert/1, connection_string/2]). @@ -46,8 +46,7 @@ -spec(recv/2 :: (socket(), non_neg_integer()) -> {'data', [char()] | binary()} | 'closed' | rabbit_types:error(any()) | {'other', any()}). --spec(async_recv/3 :: - (socket(), integer(), timeout()) -> rabbit_types:ok(any())). +-spec(async_recv/2 :: (socket(), integer()) -> rabbit_types:ok(any())). -spec(port_command/2 :: (socket(), iolist()) -> 'true'). -spec(send/2 :: (socket(), binary() | iolist()) -> ok_or_any_error()). -spec(close/1 :: (socket()) -> ok_or_any_error()). @@ -87,7 +86,16 @@ getstat(Sock, Stats) when ?IS_SSL(Sock) -> getstat(Sock, Stats) when is_port(Sock) -> inet:getstat(Sock, Stats). -recv(Sock, Ref) -> +recv(Sock, ok) when ?IS_SSL(Sock) -> + SSL = Sock#ssl_socket.ssl, + receive + {ssl, SSL, Data} -> {data, Data}; + {ssl_closed, SSL} -> closed; + {ssl_error, SSL, Reason} -> {error, Reason}; + Other -> {other, Other} + end; + +recv(Sock, Ref) when is_port(Sock) -> receive {inet_async, Sock, Ref, {ok, Data}} -> {data, Data}; {inet_async, Sock, Ref, {error, closed}} -> closed; @@ -95,28 +103,10 @@ recv(Sock, Ref) -> Other -> {other, Other} end. -async_recv(Sock, Length, Timeout) when ?IS_SSL(Sock) -> - Ref = make_ref(), - Buddy = case get(ssl_buddy) of - undefined -> B = spawn_link(fun ssl_buddy_loop/0), - put(ssl_buddy, B), - B; - B -> B - end, - Buddy ! {recv, self(), Sock, Ref, Length, Timeout}, - {ok, Ref}; -async_recv(Sock, Length, infinity) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, -1); -async_recv(Sock, Length, Timeout) when is_port(Sock) -> - prim_inet:async_recv(Sock, Length, Timeout). - -ssl_buddy_loop() -> - receive - {recv, Pid, Sock, Ref, Length, Timeout} -> - Pid ! {inet_async, Sock, Ref, - ssl:recv(Sock#ssl_socket.ssl, Length, Timeout)}, - ssl_buddy_loop() - end. +async_recv(Sock, _Count) when ?IS_SSL(Sock) -> + ok = ssl:setopts(Sock#ssl_socket.ssl, [{active, once}]); +async_recv(Sock, Length) when is_port(Sock) -> + prim_inet:async_recv(Sock, Length, -1). port_command(Sock, Data) when ?IS_SSL(Sock) -> case ssl:send(Sock#ssl_socket.ssl, Data) of diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index a4b40aa0..412e8123 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -263,7 +263,7 @@ recvloop(Deb, State = #v1{sock = Sock, recv_len = RecvLen, buf_len = BufLen}) %% We try to estimate the MSS by keeping track of the largest %% number of bytes we have got back when bytes_wanted/1 = 0. Len = bytes_wanted(State), - Ref = inet_op(fun () -> rabbit_net:async_recv(Sock, Len, infinity) end), + Ref = inet_op(fun () -> rabbit_net:async_recv(Sock, Len) end), mainloop(Deb, State#v1{recv_ref = Ref}); recvloop(Deb, State = #v1{recv_len = RecvLen, buf = Buf, buf_len = BufLen}) -> {Data, Rest} = split_binary(case Buf of -- cgit v1.2.1 From eafab41f3efc1bc3107d04dd46794c680886e485 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 17 Apr 2012 16:40:39 +0100 Subject: Correct comment --- src/rabbit_reader.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 412e8123..68ba32fa 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -257,8 +257,8 @@ recvloop(Deb, State = #v1{sock = Sock, recv_len = RecvLen, buf_len = BufLen}) %% the Maximum Segment Size) so as to not use too many %% syscalls. But if we are dealing with larger messages we want to %% request the exact length (which will typically be larger than - %% the MSS, i.e. gen_tcp:recv will wait) so that we don't have to - %% reassemble too much. + %% the MSS, i.e. we will wait for more packets to come in) so that + %% we don't have to reassemble too much. %% %% We try to estimate the MSS by keeping track of the largest %% number of bytes we have got back when bytes_wanted/1 = 0. -- cgit v1.2.1 From 7d3fddb45a89d243090f90412ee7c347dbfe27c3 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 18 Apr 2012 15:53:10 +0100 Subject: deleted dtree.erl --- src/dtree.erl | 165 ---------------------------------------------------------- 1 file changed, 165 deletions(-) delete mode 100644 src/dtree.erl diff --git a/src/dtree.erl b/src/dtree.erl deleted file mode 100644 index 3ec83c33..00000000 --- a/src/dtree.erl +++ /dev/null @@ -1,165 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2012 VMware, Inc. All rights reserved. -%% - -%% A dual-index tree. -%% -%% Entries have the following shape: -%% -%% +----+--------------------+---+ -%% | PK | SK1, SK2, ..., SKN | V | -%% +----+--------------------+---+ -%% -%% i.e. a primary key, set of secondary keys, and a value. -%% -%% There can be only one entry per primary key, but secondary keys may -%% appear in multiple entries. -%% -%% The set of secondary keys must be non-empty. Or, to put it another -%% way, entries only exist while their secondary key set is non-empty. - --module(dtree). - --export([empty/0, insert/4, take/3, take/2, take_all/2, - is_defined/2, is_empty/1, smallest/1, size/1]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --export_type([?MODULE/0]). - --opaque(?MODULE() :: {gb_tree(), gb_tree()}). - --type(pk() :: any()). --type(sk() :: any()). --type(val() :: any()). --type(kv() :: {pk(), val()}). - --spec(empty/0 :: () -> ?MODULE()). --spec(insert/4 :: (pk(), [sk()], val(), ?MODULE()) -> ?MODULE()). --spec(take/3 :: ([pk()], sk(), ?MODULE()) -> {[kv()], ?MODULE()}). --spec(take/2 :: (sk(), ?MODULE()) -> {[kv()], ?MODULE()}). --spec(take_all/2 :: (sk(), ?MODULE()) -> {[kv()], ?MODULE()}). --spec(is_defined/2 :: (sk(), ?MODULE()) -> boolean()). --spec(is_empty/1 :: (?MODULE()) -> boolean()). --spec(smallest/1 :: (?MODULE()) -> kv()). --spec(size/1 :: (?MODULE()) -> non_neg_integer()). - --endif. - -%%---------------------------------------------------------------------------- - -empty() -> {gb_trees:empty(), gb_trees:empty()}. - -%% Insert an entry. Fails if there already is an entry with the given -%% primary key. -insert(PK, [], V, {P, S}) -> - %% dummy insert to force error if PK exists - gb_trees:insert(PK, {gb_sets:empty(), V}, P), - {P, S}; -insert(PK, SKs, V, {P, S}) -> - {gb_trees:insert(PK, {gb_sets:from_list(SKs), V}, P), - lists:foldl(fun (SK, S0) -> - case gb_trees:lookup(SK, S0) of - {value, PKS} -> PKS1 = gb_sets:insert(PK, PKS), - gb_trees:update(SK, PKS1, S0); - none -> PKS = gb_sets:singleton(PK), - gb_trees:insert(SK, PKS, S0) - end - end, S, SKs)}. - -%% Remove the given secondary key from the entries of the given -%% primary keys, returning the primary-key/value pairs of any entries -%% that were dropped as the result (i.e. due to their secondary key -%% set becoming empty). It is ok for the given primary keys and/or -%% secondary key to not exist. -take(PKs, SK, {P, S}) -> - case gb_trees:lookup(SK, S) of - none -> {[], {P, S}}; - {value, PKS} -> TakenPKS = gb_sets:from_list(PKs), - PKSInter = gb_sets:intersection(PKS, TakenPKS), - PKSDiff = gb_sets_difference_unsafe(PKS, TakenPKS), - {KVs, P1} = take2(PKSInter, SK, P), - {KVs, {P1, case gb_sets:is_empty(PKSDiff) of - true -> gb_trees:delete(SK, S); - false -> gb_trees:update(SK, PKSDiff, S) - end}} - end. - -%% Remove the given secondary key from all entries, returning the -%% primary-key/value pairs of any entries that were dropped as the -%% result (i.e. due to their secondary key set becoming empty). It is -%% ok for the given secondary key to not exist. -take(SK, {P, S}) -> - case gb_trees:lookup(SK, S) of - none -> {[], {P, S}}; - {value, PKS} -> {KVs, P1} = take2(PKS, SK, P), - {KVs, {P1, gb_trees:delete(SK, S)}} - end. - -%% Drop all entries which contain the given secondary key, returning -%% the primary-key/value pairs of these entries. It is ok for the -%% given secondary key to not exist. -take_all(SK, {P, S}) -> - case gb_trees:lookup(SK, S) of - none -> {[], {P, S}}; - {value, PKS} -> {KVs, SKS, P1} = take_all2(PKS, P), - {KVs, {P1, prune(SKS, PKS, S)}} - end. - -is_defined(SK, {_P, S}) -> gb_trees:is_defined(SK, S). - -is_empty({P, _S}) -> gb_trees:is_empty(P). - -smallest({P, _S}) -> {K, {_SKS, V}} = gb_trees:smallest(P), - {K, V}. - -size({P, _S}) -> gb_trees:size(P). - -%%---------------------------------------------------------------------------- - -take2(PKS, SK, P) -> - gb_sets:fold(fun (PK, {KVs, P0}) -> - {SKS, V} = gb_trees:get(PK, P0), - SKS1 = gb_sets:delete(SK, SKS), - {[{PK, V} | KVs], - case gb_sets:is_empty(SKS1) of - true -> gb_trees:delete(PK, P0); - false -> gb_trees:update(PK, {SKS1, V}, P0) - end} - end, {[], P}, PKS). - -take_all2(PKS, P) -> - gb_sets:fold(fun (PK, {KVs, SKS0, P0}) -> - {SKS, V} = gb_trees:get(PK, P0), - {[{PK, V} | KVs], gb_sets:union(SKS, SKS0), - gb_trees:delete(PK, P0)} - end, {[], gb_sets:empty(), P}, PKS). - -prune(SKS, PKS, S) -> - gb_sets:fold(fun (SK0, S0) -> - PKS1 = gb_trees:get(SK0, S0), - PKS2 = gb_sets_difference_unsafe(PKS1, PKS), - case gb_sets:is_empty(PKS2) of - true -> gb_trees:delete(SK0, S0); - false -> gb_trees:update(SK0, PKS2, S0) - end - end, S, SKS). - -%% This function assumes that all the elements we're deleting from the -%% first set are present. -gb_sets_difference_unsafe(S1, S2) -> - lists:foldl(fun gb_sets:delete/2, S1, gb_sets:to_list(S2)). -- cgit v1.2.1 From 96ec4f9256d89b10bb773593c0edb982465b612f Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 19 Apr 2012 12:39:00 +0100 Subject: We can come in here from the second head of rabbit_reader:recvloop (when blocked), in when case there is no outstanding packet and the Ref is not "ok". --- src/rabbit_net.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_net.erl b/src/rabbit_net.erl index 0d27da88..18976f4e 100644 --- a/src/rabbit_net.erl +++ b/src/rabbit_net.erl @@ -86,7 +86,7 @@ getstat(Sock, Stats) when ?IS_SSL(Sock) -> getstat(Sock, Stats) when is_port(Sock) -> inet:getstat(Sock, Stats). -recv(Sock, ok) when ?IS_SSL(Sock) -> +recv(Sock, _Ref) when ?IS_SSL(Sock) -> SSL = Sock#ssl_socket.ssl, receive {ssl, SSL, Data} -> {data, Data}; -- cgit v1.2.1 From 97085e319502c3e4364a0351a38b175819a2b98e Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 2 May 2012 14:22:12 +0100 Subject: Add join_cluster, chang the way cluster config works The arguments of `join_cluster' are a set of nodes to use to discover the disc nodes present in the cluster. The old `cluster' command now emits a warning and is actually `join_cluster'. I still need to make the configurations update when a new disc node joins the cluster. The node's cluster config now stores the discovered nodes and whether the current node is on disc or not. This is less hackish then the previous solutions (the node is on disc if it's included in the list of cluster nodes in the config), and makes some code in `rabbit_upgrade' nicer. Note that this might change in the future anyways, since it doesn't make much sense for a disc node to have that kind of config. Things that I'm not sure of: * What does `force' mean in this context. Right now I left the `force_cluster' command in place, and it calls `rabbit_mnesia:force_cluster' as before. The only difference between force and not force is that when `force = true' and the node cannot discover the disc nodes, it simply uses the provided nodes. I'm not sure this is desirable, but since `force' means "make it work even if the nodes are offline" (at least in this context), I think it's the only way out. The differences between force/non force in `rabbit_mnesia:init_db/4' remain the same as before. * What do we do with old configurations. Right now I simply check how they're formed and convert them to the new format, but I'm not sure if it's better to update the file or not. Again this might change since in the future I'll have to set up a way to update the config file anyways. --- src/rabbit_control.erl | 27 +++++--- src/rabbit_mnesia.erl | 163 +++++++++++++++++++++++++------------------------ src/rabbit_upgrade.erl | 34 +++-------- 3 files changed, 110 insertions(+), 114 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 3514a517..70db6867 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -25,6 +25,7 @@ -define(QUIET_OPT, "-q"). -define(NODE_OPT, "-n"). -define(VHOST_OPT, "-p"). +-define(RAM_OPT, "--ram"). -define(GLOBAL_QUERIES, [{"Connections", rabbit_networking, connection_info_all, @@ -43,7 +44,8 @@ [{?VHOST_OPT, [set_permissions, clear_permissions, list_permissions, list_user_permissions, list_queues, list_bindings, list_connections, list_channels, list_consumers, - trace_on, trace_off]}]). + trace_on, trace_off]}, + {?RAM_OPT, [join_cluster]}]). %%---------------------------------------------------------------------------- @@ -66,7 +68,8 @@ start() -> {[Command0 | Args], Opts} = case rabbit_misc:get_options([{flag, ?QUIET_OPT}, {option, ?NODE_OPT, NodeStr}, - {option, ?VHOST_OPT, "/"}], + {option, ?VHOST_OPT, "/"}, + {flag, ?RAM_OPT}], init:get_plain_arguments()) of {[], _Opts} -> usage(); CmdArgsAndOpts -> CmdArgsAndOpts @@ -198,17 +201,23 @@ action(force_reset, Node, [], _Opts, Inform) -> Inform("Forcefully resetting node ~p", [Node]), call(Node, {rabbit_mnesia, force_reset, []}); -action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); +action(cluster, Node, ClusterNodeSs, Opts, Inform) -> + Inform("Warning: the \"cluster\" command is deprecated, please use " + "\"join_cluster\" instead.~n", []), + action(join_cluster, Node, ClusterNodeSs, Opts, Inform); -action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> +action(force_cluster, Node, ClusterNodeSs, Opts, Inform) -> ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); + DiscNode = not proplists:is_defined(?RAM_OPT, Opts), + rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes, DiscNode]); + +action(join_cluster, Node, ClusterNodeSs, Opts, Inform) -> + ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), + Inform("Clustering node ~p with ~p", [Node, ClusterNodes]), + DiscNode = not proplists:is_defined(?RAM_OPT, Opts), + rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes, DiscNode]); action(wait, Node, [PidFile], _Opts, Inform) -> Inform("Waiting for ~p", [Node]), diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 7e9346f9..03fc3543 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -18,10 +18,10 @@ -module(rabbit_mnesia). -export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/1, force_cluster/1, reset/0, force_reset/0, init_db/3, + cluster/2, force_cluster/2, reset/0, force_reset/0, init_db/4, is_clustered/0, running_clustered_nodes/0, all_clustered_nodes/0, empty_ram_only_tables/0, copy_db/1, wait_for_tables/1, - create_cluster_nodes_config/1, read_cluster_nodes_config/0, + create_cluster_nodes_config/2, read_cluster_nodes_config/0, record_running_nodes/0, read_previously_running_nodes/0, running_nodes_filename/0, is_disc_node/0, on_node_down/1, on_node_up/1]). @@ -46,11 +46,12 @@ -spec(dir/0 :: () -> file:filename()). -spec(ensure_mnesia_dir/0 :: () -> 'ok'). -spec(init/0 :: () -> 'ok'). --spec(init_db/3 :: ([node()], boolean(), rabbit_misc:thunk('ok')) -> 'ok'). +-spec(init_db/4 :: ([node()], boolean(), boolean(), rabbit_misc:thunk('ok')) + -> 'ok'). -spec(is_db_empty/0 :: () -> boolean()). --spec(cluster/1 :: ([node()]) -> 'ok'). --spec(force_cluster/1 :: ([node()]) -> 'ok'). -spec(cluster/2 :: ([node()], boolean()) -> 'ok'). +-spec(force_cluster/2 :: ([node()], boolean()) -> 'ok'). +-spec(cluster/3 :: ([node()], boolean(), boolean()) -> 'ok'). -spec(reset/0 :: () -> 'ok'). -spec(force_reset/0 :: () -> 'ok'). -spec(is_clustered/0 :: () -> boolean()). @@ -60,8 +61,8 @@ -spec(create_tables/0 :: () -> 'ok'). -spec(copy_db/1 :: (file:filename()) -> rabbit_types:ok_or_error(any())). -spec(wait_for_tables/1 :: ([atom()]) -> 'ok'). --spec(create_cluster_nodes_config/1 :: ([node()]) -> 'ok'). --spec(read_cluster_nodes_config/0 :: () -> [node()]). +-spec(create_cluster_nodes_config/2 :: ([node()], boolean()) -> 'ok'). +-spec(read_cluster_nodes_config/0 :: () -> {[node()], boolean()}). -spec(record_running_nodes/0 :: () -> 'ok'). -spec(read_previously_running_nodes/0 :: () -> [node()]). -spec(running_nodes_filename/0 :: () -> file:filename()). @@ -97,8 +98,8 @@ status() -> init() -> ensure_mnesia_running(), ensure_mnesia_dir(), - Nodes = read_cluster_nodes_config(), - ok = init_db(Nodes, should_be_disc_node(Nodes)), + {Nodes, DiscNode} = read_cluster_nodes_config(), + ok = init_db(Nodes, DiscNode, DiscNode), %% We intuitively expect the global name server to be synced when %% Mnesia is up. In fact that's not guaranteed to be the case - let's %% make it so. @@ -110,34 +111,30 @@ is_db_empty() -> lists:all(fun (Tab) -> mnesia:dirty_first(Tab) == '$end_of_table' end, table_names()). -cluster(ClusterNodes) -> - cluster(ClusterNodes, false). -force_cluster(ClusterNodes) -> - cluster(ClusterNodes, true). - -%% Alter which disk nodes this node is clustered with. This can be a -%% subset of all the disk nodes in the cluster but can (and should) -%% include the node itself if it is to be a disk rather than a ram -%% node. If Force is false, only connections to online nodes are -%% allowed. -cluster(ClusterNodes, Force) -> - rabbit_misc:local_info_msg("Clustering with ~p~s~n", - [ClusterNodes, if Force -> " forcefully"; - true -> "" - end]), +cluster(ClusterNodes, DiscNode) -> + cluster(ClusterNodes, DiscNode, false). +force_cluster(ClusterNodes, DiscNode) -> + cluster(ClusterNodes, DiscNode, true). + +cluster(DiscoveryNodes, DiscNode, Force) -> ensure_mnesia_not_running(), ensure_mnesia_dir(), + ensure_not_clustered(), - case not Force andalso is_clustered() andalso - is_only_disc_node(node(), false) andalso - not should_be_disc_node(ClusterNodes) - of - true -> log_both("last running disc node leaving cluster"); - _ -> ok - end, + %% TODO: Emit some warning/error if this node is in DiscoveryNodes + ProperDiscoveryNodes = DiscoveryNodes -- [node()], + ClusterNodes = case {discover_cluster(ProperDiscoveryNodes), Force} of + {{ok, ClusterNodes0}, _} -> ClusterNodes0; + {{error, Reason}, false} -> throw({error, Reason}); + {_, true} -> ProperDiscoveryNodes + end, + rabbit_misc:local_info_msg("Clustering with ~p~s~n", + [ClusterNodes, if Force -> " forcefully"; + true -> "" + end]), %% Wipe mnesia if we're changing type from disc to ram - case {is_disc_node(), should_be_disc_node(ClusterNodes)} of + case {is_disc_node(), DiscNode} of {true, false} -> rabbit_misc:with_local_io( fun () -> error_logger:warning_msg( "changing node type; wiping " @@ -148,34 +145,11 @@ cluster(ClusterNodes, Force) -> _ -> ok end, - %% Pre-emptively leave the cluster - %% - %% We're trying to handle the following two cases: - %% 1. We have a two-node cluster, where both nodes are disc nodes. - %% One node is re-clustered as a ram node. When it tries to - %% re-join the cluster, but before it has time to update its - %% tables definitions, the other node will order it to re-create - %% its disc tables. So, we need to leave the cluster before we - %% can join it again. - %% 2. We have a two-node cluster, where both nodes are disc nodes. - %% One node is forcefully reset (so, the other node thinks its - %% still a part of the cluster). The reset node is re-clustered - %% as a ram node. Same as above, we need to leave the cluster - %% before we can join it. But, since we don't know if we're in a - %% cluster or not, we just pre-emptively leave it before joining. - ProperClusterNodes = ClusterNodes -- [node()], - try - ok = leave_cluster(ProperClusterNodes, ProperClusterNodes) - catch - {error, {no_running_cluster_nodes, _, _}} when Force -> - ok - end, - %% Join the cluster start_mnesia(), try - ok = init_db(ClusterNodes, Force), - ok = create_cluster_nodes_config(ClusterNodes) + ok = init_db(ClusterNodes, DiscNode, Force), + ok = create_cluster_nodes_config(ClusterNodes, DiscNode) after stop_mnesia() end, @@ -188,6 +162,12 @@ cluster(ClusterNodes, Force) -> reset() -> reset(false). force_reset() -> reset(true). +ensure_not_clustered() -> + case is_clustered() of + true -> throw({error, node_already_clustered}); + false -> ok + end. + is_clustered() -> RunningNodes = running_clustered_nodes(), [node()] /= RunningNodes andalso [] /= RunningNodes. @@ -209,6 +189,14 @@ empty_ram_only_tables() -> end, table_names()), ok. +discover_cluster([]) -> + {error, cannot_discover_cluster}; +discover_cluster([Node | Nodes]) -> + case rpc:call(Node, rabbit_mnesia, all_clustered_nodes, []) of + {badrpc, _Reason} -> discover_cluster(Nodes); + Res -> {ok, Res} + end. + %%-------------------------------------------------------------------- nodes_of_type(Type) -> @@ -445,7 +433,7 @@ check_tables(Fun) -> cluster_nodes_config_filename() -> dir() ++ "/cluster_nodes.config". -create_cluster_nodes_config(ClusterNodes) -> +create_cluster_nodes_config(ClusterNodes, DiscNode) -> FileName = cluster_nodes_config_filename(), case rabbit_file:write_term_file(FileName, [ClusterNodes]) of ok -> ok; @@ -456,14 +444,23 @@ create_cluster_nodes_config(ClusterNodes) -> read_cluster_nodes_config() -> FileName = cluster_nodes_config_filename(), + %% TODO: Should I write a new config if I find an old one? case rabbit_file:read_term_file(FileName) of - {ok, [ClusterNodes]} -> ClusterNodes; + {ok, [ClusterNodes, DiscNode]} when is_boolean(DiscNode) -> + {ClusterNodes, DiscNode}; + %% Old config + {ok, [ClusterNodes]} -> + {ClusterNodes, should_be_disc_node_legacy(ClusterNodes)}; {error, enoent} -> - {ok, ClusterNodes} = application:get_env(rabbit, cluster_nodes), - ClusterNodes; + {ok, Res} = application:get_env(rabbit, cluster_nodes), + case Res of + Config = {_, _} -> Config; + %% Again, old config + ClusterNodes -> {ClusterNodes, + should_be_disc_node_legacy(ClusterNodes)} + end; {error, Reason} -> - throw({error, {cannot_read_cluster_nodes_config, - FileName, Reason}}) + throw({error, {cannot_read_cluster_nodes_config, FileName, Reason}}) end. delete_cluster_nodes_config() -> @@ -505,9 +502,9 @@ delete_previously_running_nodes() -> FileName, Reason}}) end. -init_db(ClusterNodes, Force) -> +init_db(ClusterNodes, DiscNode, Force) -> init_db( - ClusterNodes, Force, + ClusterNodes, DiscNode, Force, fun () -> case rabbit_upgrade:maybe_upgrade_local() of ok -> ok; @@ -517,23 +514,23 @@ init_db(ClusterNodes, Force) -> end end). -%% Take a cluster node config and create the right kind of node - a -%% standalone disk node, or disk or ram node connected to the -%% specified cluster nodes. If Force is false, don't allow -%% connections to offline nodes. -init_db(ClusterNodes, Force, SecondaryPostMnesiaFun) -> - UClusterNodes = lists:usort(ClusterNodes), - ProperClusterNodes = UClusterNodes -- [node()], - case mnesia:change_config(extra_db_nodes, ProperClusterNodes) of - {ok, []} when not Force andalso ProperClusterNodes =/= [] -> - throw({error, {failed_to_cluster_with, ProperClusterNodes, +%% Take a cluster node config and create the right kind of node - a standalone +%% disk node, or disk or ram node connected to the specified cluster nodes. If +%% Force is false, don't allow connections to offline nodes. +init_db(ClusterNodes0, DiscNode, Force, SecondaryPostMnesiaFun) -> + ClusterNodes = lists:usort(ClusterNodes0), + %% TODO: I'm assering that the current node is not present in the list, + %% not sure if it's the right thing to do. + false = ordsets:is_element(node(), ClusterNodes), + case mnesia:change_config(extra_db_nodes, ClusterNodes) of + {ok, []} when not Force andalso ClusterNodes =/= [] -> + throw({error, {failed_to_cluster_with, ClusterNodes, "Mnesia could not connect to any disc nodes."}}); {ok, Nodes} -> WasDiscNode = is_disc_node(), - WantDiscNode = should_be_disc_node(ClusterNodes), %% We create a new db (on disk, or in ram) in the first %% two cases and attempt to upgrade the in the other two - case {Nodes, WasDiscNode, WantDiscNode} of + case {Nodes, WasDiscNode, DiscNode} of {[], _, false} -> %% New ram node; start from scratch ok = create_schema(ram); @@ -551,7 +548,7 @@ init_db(ClusterNodes, Force, SecondaryPostMnesiaFun) -> ensure_version_ok( rpc:call(AnotherNode, rabbit_version, recorded, [])), {CopyType, CopyTypeAlt} = - case WantDiscNode of + case DiscNode of true -> {disc, disc_copies}; false -> {ram, ram_copies} end, @@ -565,7 +562,7 @@ init_db(ClusterNodes, Force, SecondaryPostMnesiaFun) -> case is_disc_node() of false -> start_mnesia(), mnesia:change_config(extra_db_nodes, - ProperClusterNodes), + ClusterNodes), wait_for_replicated_tables(); true -> ok end, @@ -620,7 +617,10 @@ create_schema(Type) -> is_disc_node() -> mnesia:system_info(use_dir). -should_be_disc_node(ClusterNodes) -> +%% This function was the old test on whether the current node should be a disc +%% node. We do not need this anymore since this information is stored in the +%% config, but we still use it to read old configs. +should_be_disc_node_legacy(ClusterNodes) -> ClusterNodes == [] orelse lists:member(node(), ClusterNodes). move_db() -> @@ -747,7 +747,8 @@ reset(Force) -> try %% Force=true here so that reset still works when clustered %% with a node which is down - ok = init_db(read_cluster_nodes_config(), true), + {ClusterNodes, DiscNode} = read_cluster_nodes_config(), + ok = init_db(ClusterNodes, DiscNode, true), running_clustered_nodes() -- [Node] after stop_mnesia() diff --git a/src/rabbit_upgrade.erl b/src/rabbit_upgrade.erl index e1a7bcae..c2afb2ac 100644 --- a/src/rabbit_upgrade.erl +++ b/src/rabbit_upgrade.erl @@ -123,8 +123,9 @@ remove_backup() -> maybe_upgrade_mnesia() -> %% rabbit_mnesia:all_clustered_nodes/0 will return [] at this point %% if we are a RAM node since Mnesia has not started yet. + {ClusterNodes, IsDiscNode} = rabbit_mnesia:read_cluster_nodes_config(), AllNodes = lists:usort(rabbit_mnesia:all_clustered_nodes() ++ - rabbit_mnesia:read_cluster_nodes_config()), + ClusterNodes), case rabbit_version:upgrades_required(mnesia) of {error, starting_from_scratch} -> ok; @@ -141,17 +142,17 @@ maybe_upgrade_mnesia() -> ok; {ok, Upgrades} -> ensure_backup_taken(), - ok = case upgrade_mode(AllNodes) of + ok = case upgrade_mode(AllNodes, IsDiscNode) of primary -> primary_upgrade(Upgrades, AllNodes); - secondary -> secondary_upgrade(AllNodes) + secondary -> secondary_upgrade(AllNodes, IsDiscNode) end end. -upgrade_mode(AllNodes) -> +upgrade_mode(AllNodes, IsDiscNode) -> case nodes_running(AllNodes) of [] -> AfterUs = rabbit_mnesia:read_previously_running_nodes(), - case {is_disc_node_legacy(), AfterUs} of + case {IsDiscNode, AfterUs} of {true, []} -> primary; {true, _} -> @@ -217,20 +218,13 @@ primary_upgrade(Upgrades, Nodes) -> force_tables() -> [mnesia:force_load_table(T) || T <- rabbit_mnesia:table_names()]. -secondary_upgrade(AllNodes) -> - %% must do this before we wipe out schema - IsDiscNode = is_disc_node_legacy(), +secondary_upgrade(AllNodes, IsDiscNode) -> rabbit_misc:ensure_ok(mnesia:delete_schema([node()]), cannot_delete_schema), - %% Note that we cluster with all nodes, rather than all disc nodes - %% (as we can't know all disc nodes at this point). This is safe as - %% we're not writing the cluster config, just setting up Mnesia. - ClusterNodes = case IsDiscNode of - true -> AllNodes; - false -> AllNodes -- [node()] - end, + ClusterNodes = AllNodes -- [node()], rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok = rabbit_mnesia:init_db(ClusterNodes, true, fun () -> ok end), + ok = rabbit_mnesia:init_db(ClusterNodes, IsDiscNode, true, + fun () -> ok end), ok = rabbit_version:record_desired_for_scope(mnesia), ok. @@ -278,14 +272,6 @@ lock_filename() -> lock_filename(dir()). lock_filename(Dir) -> filename:join(Dir, ?LOCK_FILENAME). backup_dir() -> dir() ++ "-upgrade-backup". -is_disc_node_legacy() -> - %% This is pretty ugly but we can't start Mnesia and ask it (will - %% hang), we can't look at the config file (may not include us - %% even if we're a disc node). We also can't use - %% rabbit_mnesia:is_disc_node/0 because that will give false - %% postivies on Rabbit up to 2.5.1. - filelib:is_regular(filename:join(dir(), "rabbit_durable_exchange.DCD")). - %% NB: we cannot use rabbit_log here since it may not have been %% started yet info(Msg, Args) -> error_logger:info_msg(Msg, Args). -- cgit v1.2.1 From 9cb88d8a6559cb91630fd0018c9c39db77f648d0 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 2 May 2012 14:48:01 +0100 Subject: fix `rabbit_mnesia:create_cluster_nodes_config/2' --- src/rabbit_mnesia.erl | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 03fc3543..72db922e 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -153,6 +153,11 @@ cluster(DiscoveryNodes, DiscNode, Force) -> after stop_mnesia() end, + + case DiscNode of + true -> rabbit_node_monitor:notify_cluster(); + false -> ok + end, ok. @@ -435,12 +440,12 @@ cluster_nodes_config_filename() -> create_cluster_nodes_config(ClusterNodes, DiscNode) -> FileName = cluster_nodes_config_filename(), - case rabbit_file:write_term_file(FileName, [ClusterNodes]) of + case rabbit_file:write_term_file(FileName, [ClusterNodes, DiscNode]) of ok -> ok; {error, Reason} -> throw({error, {cannot_create_cluster_nodes_config, FileName, Reason}}) - end. + end. read_cluster_nodes_config() -> FileName = cluster_nodes_config_filename(), -- cgit v1.2.1 From b69e9acb4d23a3c00010416d86f49dc880ffd2ab Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 2 May 2012 16:07:04 +0100 Subject: change config to a {[node()], boolean()} tuple. --- src/rabbit_mnesia.erl | 40 ++++++++++++++++++++-------------------- src/rabbit_upgrade.erl | 2 +- 2 files changed, 21 insertions(+), 21 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 72db922e..d7a9f506 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -18,10 +18,10 @@ -module(rabbit_mnesia). -export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/2, force_cluster/2, reset/0, force_reset/0, init_db/4, + cluster/2, force_cluster/2, reset/0, force_reset/0, init_db/3, is_clustered/0, running_clustered_nodes/0, all_clustered_nodes/0, empty_ram_only_tables/0, copy_db/1, wait_for_tables/1, - create_cluster_nodes_config/2, read_cluster_nodes_config/0, + create_cluster_nodes_config/1, read_cluster_nodes_config/0, record_running_nodes/0, read_previously_running_nodes/0, running_nodes_filename/0, is_disc_node/0, on_node_down/1, on_node_up/1]). @@ -38,16 +38,16 @@ -ifdef(use_specs). --export_type([node_type/0]). +-export_type([node_type/0, node_config/0]). -type(node_type() :: disc_only | disc | ram | unknown). +-type(node_config() :: {[node()], boolean()}). -spec(status/0 :: () -> [{'nodes', [{node_type(), [node()]}]} | {'running_nodes', [node()]}]). -spec(dir/0 :: () -> file:filename()). -spec(ensure_mnesia_dir/0 :: () -> 'ok'). -spec(init/0 :: () -> 'ok'). --spec(init_db/4 :: ([node()], boolean(), boolean(), rabbit_misc:thunk('ok')) - -> 'ok'). +-spec(init_db/3 :: (node_config(), boolean(), rabbit_misc:thunk('ok')) -> 'ok'). -spec(is_db_empty/0 :: () -> boolean()). -spec(cluster/2 :: ([node()], boolean()) -> 'ok'). -spec(force_cluster/2 :: ([node()], boolean()) -> 'ok'). @@ -61,8 +61,8 @@ -spec(create_tables/0 :: () -> 'ok'). -spec(copy_db/1 :: (file:filename()) -> rabbit_types:ok_or_error(any())). -spec(wait_for_tables/1 :: ([atom()]) -> 'ok'). --spec(create_cluster_nodes_config/2 :: ([node()], boolean()) -> 'ok'). --spec(read_cluster_nodes_config/0 :: () -> {[node()], boolean()}). +-spec(create_cluster_nodes_config/1 :: (node_config()) -> 'ok'). +-spec(read_cluster_nodes_config/0 :: () -> node_config()). -spec(record_running_nodes/0 :: () -> 'ok'). -spec(read_previously_running_nodes/0 :: () -> [node()]). -spec(running_nodes_filename/0 :: () -> file:filename()). @@ -99,7 +99,7 @@ init() -> ensure_mnesia_running(), ensure_mnesia_dir(), {Nodes, DiscNode} = read_cluster_nodes_config(), - ok = init_db(Nodes, DiscNode, DiscNode), + ok = init_db({Nodes, DiscNode}, DiscNode), %% We intuitively expect the global name server to be synced when %% Mnesia is up. In fact that's not guaranteed to be the case - let's %% make it so. @@ -148,8 +148,9 @@ cluster(DiscoveryNodes, DiscNode, Force) -> %% Join the cluster start_mnesia(), try - ok = init_db(ClusterNodes, DiscNode, Force), - ok = create_cluster_nodes_config(ClusterNodes, DiscNode) + Config = {ClusterNodes, DiscNode}, + ok = init_db(Config, Force), + ok = create_cluster_nodes_config(Config) after stop_mnesia() end, @@ -438,20 +439,20 @@ check_tables(Fun) -> cluster_nodes_config_filename() -> dir() ++ "/cluster_nodes.config". -create_cluster_nodes_config(ClusterNodes, DiscNode) -> +create_cluster_nodes_config(Config) -> FileName = cluster_nodes_config_filename(), - case rabbit_file:write_term_file(FileName, [ClusterNodes, DiscNode]) of + case rabbit_file:write_term_file(FileName, [Config]) of ok -> ok; {error, Reason} -> throw({error, {cannot_create_cluster_nodes_config, FileName, Reason}}) - end. + end. read_cluster_nodes_config() -> FileName = cluster_nodes_config_filename(), %% TODO: Should I write a new config if I find an old one? case rabbit_file:read_term_file(FileName) of - {ok, [ClusterNodes, DiscNode]} when is_boolean(DiscNode) -> + {ok, [{ClusterNodes, DiscNode}]} when is_boolean(DiscNode) -> {ClusterNodes, DiscNode}; %% Old config {ok, [ClusterNodes]} -> @@ -507,9 +508,9 @@ delete_previously_running_nodes() -> FileName, Reason}}) end. -init_db(ClusterNodes, DiscNode, Force) -> +init_db(Config, Force) -> init_db( - ClusterNodes, DiscNode, Force, + Config, Force, fun () -> case rabbit_upgrade:maybe_upgrade_local() of ok -> ok; @@ -522,8 +523,8 @@ init_db(ClusterNodes, DiscNode, Force) -> %% Take a cluster node config and create the right kind of node - a standalone %% disk node, or disk or ram node connected to the specified cluster nodes. If %% Force is false, don't allow connections to offline nodes. -init_db(ClusterNodes0, DiscNode, Force, SecondaryPostMnesiaFun) -> - ClusterNodes = lists:usort(ClusterNodes0), +init_db({ClusterNodes0, DiscNode}, Force, SecondaryPostMnesiaFun) -> + ClusterNodes = ordsets:from_list(ClusterNodes0), %% TODO: I'm assering that the current node is not present in the list, %% not sure if it's the right thing to do. false = ordsets:is_element(node(), ClusterNodes), @@ -752,8 +753,7 @@ reset(Force) -> try %% Force=true here so that reset still works when clustered %% with a node which is down - {ClusterNodes, DiscNode} = read_cluster_nodes_config(), - ok = init_db(ClusterNodes, DiscNode, true), + ok = init_db(read_cluster_nodes_config(), true), running_clustered_nodes() -- [Node] after stop_mnesia() diff --git a/src/rabbit_upgrade.erl b/src/rabbit_upgrade.erl index c2afb2ac..234452f1 100644 --- a/src/rabbit_upgrade.erl +++ b/src/rabbit_upgrade.erl @@ -223,7 +223,7 @@ secondary_upgrade(AllNodes, IsDiscNode) -> cannot_delete_schema), ClusterNodes = AllNodes -- [node()], rabbit_misc:ensure_ok(mnesia:start(), cannot_start_mnesia), - ok = rabbit_mnesia:init_db(ClusterNodes, IsDiscNode, true, + ok = rabbit_mnesia:init_db({ClusterNodes, IsDiscNode}, true, fun () -> ok end), ok = rabbit_version:record_desired_for_scope(mnesia), ok. -- cgit v1.2.1 From 70a8bad2c820043cb42136467fe2d8e863418b27 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 2 May 2012 16:15:12 +0100 Subject: record only disc nodes in the config --- src/rabbit_mnesia.erl | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index d7a9f506..31dbdf0c 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -17,14 +17,14 @@ -module(rabbit_mnesia). --export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, - cluster/2, force_cluster/2, reset/0, force_reset/0, init_db/3, - is_clustered/0, running_clustered_nodes/0, all_clustered_nodes/0, - empty_ram_only_tables/0, copy_db/1, wait_for_tables/1, - create_cluster_nodes_config/1, read_cluster_nodes_config/0, - record_running_nodes/0, read_previously_running_nodes/0, - running_nodes_filename/0, is_disc_node/0, on_node_down/1, - on_node_up/1]). +-export([ensure_mnesia_dir/0, dir/0, status/0, init/0, is_db_empty/0, cluster/2, + force_cluster/2, reset/0, force_reset/0, init_db/3, is_clustered/0, + running_clustered_nodes/0, all_clustered_nodes/0, + all_clustered_disc_nodes/0, empty_ram_only_tables/0, copy_db/1, + wait_for_tables/1, create_cluster_nodes_config/1, + read_cluster_nodes_config/0, record_running_nodes/0, + read_previously_running_nodes/0, running_nodes_filename/0, + is_disc_node/0, on_node_down/1, on_node_up/1]). -export([table_names/0]). @@ -181,6 +181,9 @@ is_clustered() -> all_clustered_nodes() -> mnesia:system_info(db_nodes). +all_clustered_disc_nodes() -> + nodes_of_type(disc_copies). + running_clustered_nodes() -> mnesia:system_info(running_db_nodes). @@ -198,7 +201,7 @@ empty_ram_only_tables() -> discover_cluster([]) -> {error, cannot_discover_cluster}; discover_cluster([Node | Nodes]) -> - case rpc:call(Node, rabbit_mnesia, all_clustered_nodes, []) of + case rpc:call(Node, rabbit_mnesia, all_clustered_disc_nodes, []) of {badrpc, _Reason} -> discover_cluster(Nodes); Res -> {ok, Res} end. -- cgit v1.2.1 From 7331e146ccb2b4f9b4f6b8c6f0f521cb80489820 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Thu, 3 May 2012 15:31:30 +0100 Subject: `rabbit_mnesia:reset/1' did not get the running cluster nodes correctly --- src/rabbit_mnesia.erl | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 7e9346f9..b3b49983 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -736,30 +736,31 @@ reset(Force) -> true -> log_both("no other disc nodes running"); false -> ok end, - Node = node(), - Nodes = all_clustered_nodes() -- [Node], case Force of - true -> ok; + true -> + ok; false -> ensure_mnesia_dir(), start_mnesia(), - RunningNodes = + Node = node(), + {Nodes, RunningNodes} = try - %% Force=true here so that reset still works when clustered - %% with a node which is down + %% Force=true here so that reset still works when + %% clustered with a node which is down ok = init_db(read_cluster_nodes_config(), true), - running_clustered_nodes() -- [Node] + {all_clustered_nodes() -- [Node], + running_clustered_nodes() -- [Node]} after stop_mnesia() end, leave_cluster(Nodes, RunningNodes), rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) + cannot_delete_schema), + %% We need to make sure that we don't end up in a distributed + %% Erlang system with nodes while not being in an Mnesia cluster + %% with them. We don't handle that well. + [erlang:disconnect_node(N) || N <- Nodes] end, - %% We need to make sure that we don't end up in a distributed - %% Erlang system with nodes while not being in an Mnesia cluster - %% with them. We don't handle that well. - [erlang:disconnect_node(N) || N <- Nodes], ok = delete_cluster_nodes_config(), %% remove persisted messages and any other garbage we find ok = rabbit_file:recursive_delete(filelib:wildcard(dir() ++ "/*")), @@ -773,6 +774,7 @@ leave_cluster(Nodes, RunningNodes) -> %% change being propagated to all nodes case lists:any( fun (Node) -> + io:format("Trying to remove on node ~p~n", [Node]), case rpc:call(Node, mnesia, del_table_copy, [schema, node()]) of {atomic, ok} -> true; -- cgit v1.2.1 From 771da4f8a221979ce40113777de6c845cbc59c1b Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Thu, 3 May 2012 15:38:00 +0100 Subject: remove io:format --- src/rabbit_mnesia.erl | 1 - 1 file changed, 1 deletion(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index b3b49983..79322bd1 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -774,7 +774,6 @@ leave_cluster(Nodes, RunningNodes) -> %% change being propagated to all nodes case lists:any( fun (Node) -> - io:format("Trying to remove on node ~p~n", [Node]), case rpc:call(Node, mnesia, del_table_copy, [schema, node()]) of {atomic, ok} -> true; -- cgit v1.2.1 From 19a65892be2ce6174839b371344cf137c650ad72 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Thu, 3 May 2012 17:31:44 +0100 Subject: disconnect from nodes when Force=true. Right now I'm using a quite ugly hack to be sure to exclude the rabbitmqctl node, better ideas are welcome. --- src/rabbit_mnesia.erl | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 79322bd1..f063c130 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -32,6 +32,8 @@ %% other mnesia-using Erlang applications, such as ejabberd -export([create_tables/0]). +-define(RABBITMQCTL_NODE_NAME, "rabbitmqctl"). + -include("rabbit.hrl"). %%---------------------------------------------------------------------------- @@ -755,12 +757,19 @@ reset(Force) -> end, leave_cluster(Nodes, RunningNodes), rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema), - %% We need to make sure that we don't end up in a distributed - %% Erlang system with nodes while not being in an Mnesia cluster - %% with them. We don't handle that well. - [erlang:disconnect_node(N) || N <- Nodes] + cannot_delete_schema) end, + %% We don't want to disconnect rabbitmqctl + ConnectedNodes = + lists:filter( + fun(Node) -> case rabbit_nodes:parts(Node) of + {Name, _} -> not (Name =:= ?RABBITMQCTL_NODE_NAME) + end + end, nodes()), + %% We need to make sure that we don't end up in a distributed + %% Erlang system with nodes while not being in an Mnesia cluster + %% with them. We don't handle that well. + [erlang:disconnect_node(N) || N <- nodes()], ok = delete_cluster_nodes_config(), %% remove persisted messages and any other garbage we find ok = rabbit_file:recursive_delete(filelib:wildcard(dir() ++ "/*")), -- cgit v1.2.1 From 25879383f0cf6a596fe9b2beb79fb1b7431919f8 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Thu, 3 May 2012 17:57:52 +0100 Subject: fix the rabbitmqctl node detection --- src/rabbit_mnesia.erl | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index f063c130..ac7ea18e 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -32,7 +32,8 @@ %% other mnesia-using Erlang applications, such as ejabberd -export([create_tables/0]). --define(RABBITMQCTL_NODE_NAME, "rabbitmqctl"). +%% The prefix of the module name of nodes spawned by the rabbitmqctl script. +-define(RABBITMQCTL_PREFIX, "rabbitmqctl"). -include("rabbit.hrl"). @@ -762,14 +763,15 @@ reset(Force) -> %% We don't want to disconnect rabbitmqctl ConnectedNodes = lists:filter( - fun(Node) -> case rabbit_nodes:parts(Node) of - {Name, _} -> not (Name =:= ?RABBITMQCTL_NODE_NAME) - end + fun(Node) -> + case rabbit_nodes:parts(Node) of + {Name, _} -> not lists:prefix(?RABBITMQCTL_PREFIX, Name) + end end, nodes()), %% We need to make sure that we don't end up in a distributed %% Erlang system with nodes while not being in an Mnesia cluster %% with them. We don't handle that well. - [erlang:disconnect_node(N) || N <- nodes()], + [erlang:disconnect_node(N) || N <- ConnectedNodes], ok = delete_cluster_nodes_config(), %% remove persisted messages and any other garbage we find ok = rabbit_file:recursive_delete(filelib:wildcard(dir() ++ "/*")), -- cgit v1.2.1 From 1ffcda49f2059bf96fe2c00cd73b388058b9e871 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Fri, 4 May 2012 10:45:32 +0100 Subject: don't try to disconnet from nodes on `rabbit_mnesia:reset/1' and Force=true This is the behaviour we had before, and trying to disconnect all the necessary nodes without connecting to mnesia first is tricky (the previous solution was very brittle, e.g. the tests break because we disconnect the coverage node). --- src/rabbit_mnesia.erl | 56 ++++++++++++++++++++++----------------------------- 1 file changed, 24 insertions(+), 32 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index ac7ea18e..e4e1c121 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -32,9 +32,6 @@ %% other mnesia-using Erlang applications, such as ejabberd -export([create_tables/0]). -%% The prefix of the module name of nodes spawned by the rabbitmqctl script. --define(RABBITMQCTL_PREFIX, "rabbitmqctl"). - -include("rabbit.hrl"). %%---------------------------------------------------------------------------- @@ -739,39 +736,34 @@ reset(Force) -> true -> log_both("no other disc nodes running"); false -> ok end, - case Force of - true -> - ok; - false -> - ensure_mnesia_dir(), - start_mnesia(), - Node = node(), - {Nodes, RunningNodes} = - try - %% Force=true here so that reset still works when - %% clustered with a node which is down - ok = init_db(read_cluster_nodes_config(), true), - {all_clustered_nodes() -- [Node], - running_clustered_nodes() -- [Node]} - after - stop_mnesia() - end, - leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) + Nodes = case Force of + true -> + %% all_clustered_nodes() will return [node()] here, since + %% mnesia is not running. + []; + false -> + ensure_mnesia_dir(), + start_mnesia(), + Node = node(), + {Nodes0, RunningNodes} = + try + %% Force=true here so that reset still works when + %% clustered with a node which is down + ok = init_db(read_cluster_nodes_config(), true), + {all_clustered_nodes() -- [Node], + running_clustered_nodes() -- [Node]} + after + stop_mnesia() + end, + leave_cluster(Nodes0, RunningNodes), + rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), + cannot_delete_schema), + Nodes0 end, - %% We don't want to disconnect rabbitmqctl - ConnectedNodes = - lists:filter( - fun(Node) -> - case rabbit_nodes:parts(Node) of - {Name, _} -> not lists:prefix(?RABBITMQCTL_PREFIX, Name) - end - end, nodes()), %% We need to make sure that we don't end up in a distributed %% Erlang system with nodes while not being in an Mnesia cluster %% with them. We don't handle that well. - [erlang:disconnect_node(N) || N <- ConnectedNodes], + [erlang:disconnect_node(N) || N <- Nodes], ok = delete_cluster_nodes_config(), %% remove persisted messages and any other garbage we find ok = rabbit_file:recursive_delete(filelib:wildcard(dir() ++ "/*")), -- cgit v1.2.1 From 743dbfd7cd407bb9545a47100b077c68bfb65fe3 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 13:14:36 +0100 Subject: move rabbit_control to the same naming scheme as rabbit_plugins --- scripts/rabbitmqctl | 2 +- scripts/rabbitmqctl.bat | 2 +- src/rabbit_control.erl | 581 -------------------------------------------- src/rabbit_control_main.erl | 581 ++++++++++++++++++++++++++++++++++++++++++++ src/rabbit_tests.erl | 2 +- 5 files changed, 584 insertions(+), 584 deletions(-) delete mode 100644 src/rabbit_control.erl create mode 100644 src/rabbit_control_main.erl diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl index 4aad6b8f..a5fade72 100755 --- a/scripts/rabbitmqctl +++ b/scripts/rabbitmqctl @@ -32,6 +32,6 @@ exec erl \ -hidden \ ${RABBITMQ_CTL_ERL_ARGS} \ -sname rabbitmqctl$$ \ - -s rabbit_control \ + -s rabbit_control_main \ -nodename $RABBITMQ_NODENAME \ -extra "$@" diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index f37fae48..55a3d8b2 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,7 +43,7 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! +"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control_main -nodename !RABBITMQ_NODENAME! -extra !STAR! endlocal endlocal diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl deleted file mode 100644 index 6dc8d445..00000000 --- a/src/rabbit_control.erl +++ /dev/null @@ -1,581 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2012 VMware, Inc. All rights reserved. -%% - --module(rabbit_control). --include("rabbit.hrl"). - --export([start/0, stop/0, action/5]). - --define(RPC_TIMEOUT, infinity). --define(EXTERNAL_CHECK_INTERVAL, 1000). - --define(QUIET_OPT, "-q"). --define(NODE_OPT, "-n"). --define(VHOST_OPT, "-p"). - --define(GLOBAL_QUERIES, - [{"Connections", rabbit_networking, connection_info_all, - connection_info_keys}, - {"Channels", rabbit_channel, info_all, info_keys}]). - --define(VHOST_QUERIES, - [{"Queues", rabbit_amqqueue, info_all, info_keys}, - {"Exchanges", rabbit_exchange, info_all, info_keys}, - {"Bindings", rabbit_binding, info_all, info_keys}, - {"Consumers", rabbit_amqqueue, consumers_all, consumer_info_keys}, - {"Permissions", rabbit_auth_backend_internal, list_vhost_permissions, - vhost_perms_info_keys}]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(action/5 :: - (atom(), node(), [string()], [{string(), any()}], - fun ((string(), [any()]) -> 'ok')) - -> 'ok'). --spec(usage/0 :: () -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), - {[Command0 | Args], Opts} = - case rabbit_misc:get_options([{flag, ?QUIET_OPT}, - {option, ?NODE_OPT, NodeStr}, - {option, ?VHOST_OPT, "/"}], - init:get_plain_arguments()) of - {[], _Opts} -> usage(); - CmdArgsAndOpts -> CmdArgsAndOpts - end, - Opts1 = [case K of - ?NODE_OPT -> {?NODE_OPT, rabbit_nodes:make(V)}; - _ -> {K, V} - end || {K, V} <- Opts], - Command = list_to_atom(Command0), - Quiet = proplists:get_bool(?QUIET_OPT, Opts1), - Node = proplists:get_value(?NODE_OPT, Opts1), - Inform = case Quiet of - true -> fun (_Format, _Args1) -> ok end; - false -> fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end - end, - PrintInvalidCommandError = - fun () -> - print_error("invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]) - end, - - %% The reason we don't use a try/catch here is that rpc:call turns - %% thrown errors into normal return values - case catch action(Command, Node, Args, Opts, Inform) of - ok -> - case Quiet of - true -> ok; - false -> io:format("...done.~n") - end, - rabbit_misc:quit(0); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> %% < R15 - PrintInvalidCommandError(), - usage(); - {'EXIT', {function_clause, [{?MODULE, action, _, _} | _]}} -> %% >= R15 - PrintInvalidCommandError(), - usage(); - {'EXIT', {badarg, _}} -> - print_error("invalid parameter: ~p", [Args]), - usage(); - {error, Reason} -> - print_error("~p", [Reason]), - rabbit_misc:quit(2); - {error_string, Reason} -> - print_error("~s", [Reason]), - rabbit_misc:quit(2); - {badrpc, {'EXIT', Reason}} -> - print_error("~p", [Reason]), - rabbit_misc:quit(2); - {badrpc, Reason} -> - print_error("unable to connect to node ~w: ~w", [Node, Reason]), - print_badrpc_diagnostics(Node), - rabbit_misc:quit(2); - Other -> - print_error("~p", [Other]), - rabbit_misc:quit(2) - end. - -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - -print_report(Node, {Descr, Module, InfoFun, KeysFun}) -> - io:format("~s:~n", [Descr]), - print_report0(Node, {Module, InfoFun, KeysFun}, []). - -print_report(Node, {Descr, Module, InfoFun, KeysFun}, VHostArg) -> - io:format("~s on ~s:~n", [Descr, VHostArg]), - print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg). - -print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> - case Results = rpc_call(Node, Module, InfoFun, VHostArg) of - [_|_] -> InfoItems = rpc_call(Node, Module, KeysFun, []), - display_row([atom_to_list(I) || I <- InfoItems]), - display_info_list(Results, InfoItems); - _ -> ok - end, - io:nl(). - -print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - -print_badrpc_diagnostics(Node) -> - fmt_stderr(rabbit_nodes:diagnostics([Node]), []). - -stop() -> - ok. - -usage() -> - io:format("~s", [rabbit_ctl_usage:usage()]), - rabbit_misc:quit(1). - -%%---------------------------------------------------------------------------- - -action(stop, Node, Args, _Opts, Inform) -> - Inform("Stopping and halting node ~p", [Node]), - Res = call(Node, {rabbit, stop_and_halt, []}), - case {Res, Args} of - {ok, [PidFile]} -> wait_for_process_death( - read_pid_file(PidFile, false)); - {ok, [_, _| _]} -> exit({badarg, Args}); - _ -> ok - end, - Res; - -action(stop_app, Node, [], _Opts, Inform) -> - Inform("Stopping node ~p", [Node]), - call(Node, {rabbit, stop, []}); - -action(start_app, Node, [], _Opts, Inform) -> - Inform("Starting node ~p", [Node]), - call(Node, {rabbit, start, []}); - -action(reset, Node, [], _Opts, Inform) -> - Inform("Resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, reset, []}); - -action(force_reset, Node, [], _Opts, Inform) -> - Inform("Forcefully resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, force_reset, []}); - -action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); - -action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); - -action(wait, Node, [PidFile], _Opts, Inform) -> - Inform("Waiting for ~p", [Node]), - wait_for_application(Node, PidFile, rabbit, Inform); - -action(wait, Node, [PidFile, App], _Opts, Inform) -> - Inform("Waiting for ~p on ~p", [App, Node]), - wait_for_application(Node, PidFile, list_to_atom(App), Inform); - -action(status, Node, [], _Opts, Inform) -> - Inform("Status of node ~p", [Node]), - display_call_result(Node, {rabbit, status, []}); - -action(cluster_status, Node, [], _Opts, Inform) -> - Inform("Cluster status of node ~p", [Node]), - display_call_result(Node, {rabbit_mnesia, status, []}); - -action(environment, Node, _App, _Opts, Inform) -> - Inform("Application environment of node ~p", [Node]), - display_call_result(Node, {rabbit, environment, []}); - -action(rotate_logs, Node, [], _Opts, Inform) -> - Inform("Reopening logs for node ~p", [Node]), - call(Node, {rabbit, rotate_logs, [""]}); -action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), - call(Node, {rabbit, rotate_logs, Args}); - -action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> - Inform("Closing connection ~s", [PidStr]), - rpc_call(Node, rabbit_networking, close_connection, - [rabbit_misc:string_to_pid(PidStr), Explanation]); - -action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> - Inform("Creating user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, add_user, Args}); - -action(delete_user, Node, Args = [_Username], _Opts, Inform) -> - Inform("Deleting user ~p", Args), - call(Node, {rabbit_auth_backend_internal, delete_user, Args}); - -action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> - Inform("Changing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, change_password, Args}); - -action(clear_password, Node, Args = [Username], _Opts, Inform) -> - Inform("Clearing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_password, Args}); - -action(set_user_tags, Node, [Username | TagsStr], _Opts, Inform) -> - Tags = [list_to_atom(T) || T <- TagsStr], - Inform("Setting tags for user ~p to ~p", [Username, Tags]), - rpc_call(Node, rabbit_auth_backend_internal, set_tags, - [list_to_binary(Username), Tags]); - -action(list_users, Node, [], _Opts, Inform) -> - Inform("Listing users", []), - display_info_list( - call(Node, {rabbit_auth_backend_internal, list_users, []}), - rabbit_auth_backend_internal:user_info_keys()); - -action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Creating vhost ~p", Args), - call(Node, {rabbit_vhost, add, Args}); - -action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Deleting vhost ~p", Args), - call(Node, {rabbit_vhost, delete, Args}); - -action(list_vhosts, Node, Args, _Opts, Inform) -> - Inform("Listing vhosts", []), - ArgAtoms = default_if_empty(Args, [name]), - display_info_list(call(Node, {rabbit_vhost, info_all, []}), ArgAtoms); - -action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> - Inform("Listing permissions for user ~p", Args), - display_info_list(call(Node, {rabbit_auth_backend_internal, - list_user_permissions, Args}), - rabbit_auth_backend_internal:user_perms_info_keys()); - -action(list_queues, Node, Args, Opts, Inform) -> - Inform("Listing queues", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, messages]), - display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_exchanges, Node, Args, Opts, Inform) -> - Inform("Listing exchanges", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, type]), - display_info_list(rpc_call(Node, rabbit_exchange, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_bindings, Node, Args, Opts, Inform) -> - Inform("Listing bindings", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]), - display_info_list(rpc_call(Node, rabbit_binding, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_connections, Node, Args, _Opts, Inform) -> - Inform("Listing connections", []), - ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), - display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, - [ArgAtoms]), - ArgAtoms); - -action(list_channels, Node, Args, _Opts, Inform) -> - Inform("Listing channels", []), - ArgAtoms = default_if_empty(Args, [pid, user, consumer_count, - messages_unacknowledged]), - display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); - -action(list_consumers, Node, _Args, Opts, Inform) -> - Inform("Listing consumers", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - display_info_list(rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg]), - rabbit_amqqueue:consumer_info_keys()); - -action(trace_on, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Starting tracing for vhost ~p", [VHost]), - rpc_call(Node, rabbit_trace, start, [list_to_binary(VHost)]); - -action(trace_off, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Stopping tracing for vhost ~p", [VHost]), - rpc_call(Node, rabbit_trace, stop, [list_to_binary(VHost)]); - -action(set_vm_memory_high_watermark, Node, [Arg], _Opts, Inform) -> - Frac = list_to_float(case string:chr(Arg, $.) of - 0 -> Arg ++ ".0"; - _ -> Arg - end), - Inform("Setting memory threshold on ~p to ~p", [Node, Frac]), - rpc_call(Node, vm_memory_monitor, set_vm_memory_high_watermark, [Frac]); - -action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, [Username], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, clear_permissions, - [Username, VHost]}); - -action(list_permissions, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Listing permissions in vhost ~p", [VHost]), - display_info_list(call(Node, {rabbit_auth_backend_internal, - list_vhost_permissions, [VHost]}), - rabbit_auth_backend_internal:vhost_perms_info_keys()); - -action(set_parameter, Node, [Component, Key, Value], _Opts, Inform) -> - Inform("Setting runtime parameter ~p for component ~p to ~p", - [Key, Component, Value]), - rpc_call(Node, rabbit_runtime_parameters, parse_set, - [list_to_binary(Component), list_to_binary(Key), Value]); - -action(clear_parameter, Node, [Component, Key], _Opts, Inform) -> - Inform("Clearing runtime parameter ~p for component ~p", [Key, Component]), - rpc_call(Node, rabbit_runtime_parameters, clear, [list_to_binary(Component), - list_to_binary(Key)]); - -action(list_parameters, Node, Args = [], _Opts, Inform) -> - Inform("Listing runtime parameters", []), - display_info_list( - rpc_call(Node, rabbit_runtime_parameters, list_formatted, Args), - rabbit_runtime_parameters:info_keys()); - -action(report, Node, _Args, _Opts, Inform) -> - io:format("Reporting server status on ~p~n~n", [erlang:universaltime()]), - [begin ok = action(Action, N, [], [], Inform), io:nl() end || - N <- unsafe_rpc(Node, rabbit_mnesia, running_clustered_nodes, []), - Action <- [status, cluster_status, environment]], - VHosts = unsafe_rpc(Node, rabbit_vhost, list, []), - [print_report(Node, Q) || Q <- ?GLOBAL_QUERIES], - [print_report(Node, Q, [V]) || Q <- ?VHOST_QUERIES, V <- VHosts], - io:format("End of server status report~n"), - ok; - -action(eval, Node, [Expr], _Opts, _Inform) -> - case erl_scan:string(Expr) of - {ok, Scanned, _} -> - case erl_parse:parse_exprs(Scanned) of - {ok, Parsed} -> - {value, Value, _} = unsafe_rpc( - Node, erl_eval, exprs, [Parsed, []]), - io:format("~p~n", [Value]), - ok; - {error, E} -> - {error_string, format_parse_error(E)} - end; - {error, E, _} -> - {error_string, format_parse_error(E)} - end. - -%%---------------------------------------------------------------------------- - -wait_for_application(Node, PidFile, Application, Inform) -> - Pid = read_pid_file(PidFile, true), - Inform("pid is ~s", [Pid]), - wait_for_application(Node, Pid, Application). - -wait_for_application(Node, Pid, Application) -> - while_process_is_alive(Node, Pid, - fun() -> rabbit_nodes:is_running(Node, Application) end). - -wait_for_startup(Node, Pid) -> - while_process_is_alive(Node, Pid, - fun() -> rpc:call(Node, rabbit, await_startup, []) =:= ok end). - -while_process_is_alive(Node, Pid, Activity) -> - case process_up(Pid) of - true -> case Activity() of - true -> ok; - Other -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), - while_process_is_alive(Node, Pid, Activity) - end; - false -> {error, process_not_running} - end. - -wait_for_process_death(Pid) -> - case process_up(Pid) of - true -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), - wait_for_process_death(Pid); - false -> ok - end. - -read_pid_file(PidFile, Wait) -> - case {file:read_file(PidFile), Wait} of - {{ok, Bin}, _} -> - S = string:strip(binary_to_list(Bin), right, $\n), - try list_to_integer(S) - catch error:badarg -> - exit({error, {garbage_in_pid_file, PidFile}}) - end, - S; - {{error, enoent}, true} -> - timer:sleep(?EXTERNAL_CHECK_INTERVAL), - read_pid_file(PidFile, Wait); - {{error, _} = E, _} -> - exit({error, {could_not_read_pid, E}}) - end. - -% Test using some OS clunkiness since we shouldn't trust -% rpc:call(os, getpid, []) at this point -process_up(Pid) -> - with_os([{unix, fun () -> - system("ps -p " ++ Pid - ++ " >/dev/null 2>&1") =:= 0 - end}, - {win32, fun () -> - Res = os:cmd("tasklist /nh /fi \"pid eq " ++ - Pid ++ "\" 2>&1"), - case re:run(Res, "erl\\.exe", [{capture, none}]) of - match -> true; - _ -> false - end - end}]). - -with_os(Handlers) -> - {OsFamily, _} = os:type(), - case proplists:get_value(OsFamily, Handlers) of - undefined -> throw({unsupported_os, OsFamily}); - Handler -> Handler() - end. - -% Like system(3) -system(Cmd) -> - ShCmd = "sh -c '" ++ escape_quotes(Cmd) ++ "'", - Port = erlang:open_port({spawn, ShCmd}, [exit_status,nouse_stdio]), - receive {Port, {exit_status, Status}} -> Status end. - -% Escape the quotes in a shell command so that it can be used in "sh -c 'cmd'" -escape_quotes(Cmd) -> - lists:flatten(lists:map(fun ($') -> "'\\''"; (Ch) -> Ch end, Cmd)). - -format_parse_error({_Line, Mod, Err}) -> - lists:flatten(Mod:format_error(Err)). - -%%---------------------------------------------------------------------------- - -default_if_empty(List, Default) when is_list(List) -> - if List == [] -> Default; - true -> [list_to_atom(X) || X <- List] - end. - -display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach( - fun (Result) -> display_row( - [format_info_item(proplists:get_value(X, Result)) || - X <- InfoItemKeys]) - end, Results), - ok; -display_info_list(Other, _) -> - Other. - -display_row(Row) -> - io:fwrite(string:join(Row, "\t")), - io:nl(). - --define(IS_U8(X), (X >= 0 andalso X =< 255)). --define(IS_U16(X), (X >= 0 andalso X =< 65535)). - -format_info_item(#resource{name = Name}) -> - escape(Name); -format_info_item({N1, N2, N3, N4} = Value) when - ?IS_U8(N1), ?IS_U8(N2), ?IS_U8(N3), ?IS_U8(N4) -> - rabbit_misc:ntoa(Value); -format_info_item({K1, K2, K3, K4, K5, K6, K7, K8} = Value) when - ?IS_U16(K1), ?IS_U16(K2), ?IS_U16(K3), ?IS_U16(K4), - ?IS_U16(K5), ?IS_U16(K6), ?IS_U16(K7), ?IS_U16(K8) -> - rabbit_misc:ntoa(Value); -format_info_item(Value) when is_pid(Value) -> - rabbit_misc:pid_to_string(Value); -format_info_item(Value) when is_binary(Value) -> - escape(Value); -format_info_item(Value) when is_atom(Value) -> - escape(atom_to_list(Value)); -format_info_item([{TableEntryKey, TableEntryType, _TableEntryValue} | _] = - Value) when is_binary(TableEntryKey) andalso - is_atom(TableEntryType) -> - io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); -format_info_item([T | _] = Value) - when is_tuple(T) orelse is_pid(T) orelse is_binary(T) orelse is_atom(T) orelse - is_list(T) -> - "[" ++ - lists:nthtail(2, lists:append( - [", " ++ format_info_item(E) || E <- Value])) ++ "]"; -format_info_item(Value) -> - io_lib:format("~w", [Value]). - -display_call_result(Node, MFA) -> - case call(Node, MFA) of - {badrpc, _} = Res -> throw(Res); - Res -> io:format("~p~n", [Res]), - ok - end. - -unsafe_rpc(Node, Mod, Fun, Args) -> - case rpc_call(Node, Mod, Fun, Args) of - {badrpc, _} = Res -> throw(Res); - Normal -> Normal - end. - -call(Node, {Mod, Fun, Args}) -> - rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). - -rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). - -%% escape does C-style backslash escaping of non-printable ASCII -%% characters. We don't escape characters above 127, since they may -%% form part of UTF-8 strings. - -escape(Atom) when is_atom(Atom) -> escape(atom_to_list(Atom)); -escape(Bin) when is_binary(Bin) -> escape(binary_to_list(Bin)); -escape(L) when is_list(L) -> escape_char(lists:reverse(L), []). - -escape_char([$\\ | T], Acc) -> - escape_char(T, [$\\, $\\ | Acc]); -escape_char([X | T], Acc) when X >= 32, X /= 127 -> - escape_char(T, [X | Acc]); -escape_char([X | T], Acc) -> - escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), - $0 + (X band 7) | Acc]); -escape_char([], Acc) -> - Acc. - -prettify_amqp_table(Table) -> - [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. - -prettify_typed_amqp_value(longstr, Value) -> escape(Value); -prettify_typed_amqp_value(table, Value) -> prettify_amqp_table(Value); -prettify_typed_amqp_value(array, Value) -> [prettify_typed_amqp_value(T, V) || - {T, V} <- Value]; -prettify_typed_amqp_value(_Type, Value) -> Value. diff --git a/src/rabbit_control_main.erl b/src/rabbit_control_main.erl new file mode 100644 index 00000000..b1c120bd --- /dev/null +++ b/src/rabbit_control_main.erl @@ -0,0 +1,581 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2007-2012 VMware, Inc. All rights reserved. +%% + +-module(rabbit_control_main). +-include("rabbit.hrl"). + +-export([start/0, stop/0, action/5]). + +-define(RPC_TIMEOUT, infinity). +-define(EXTERNAL_CHECK_INTERVAL, 1000). + +-define(QUIET_OPT, "-q"). +-define(NODE_OPT, "-n"). +-define(VHOST_OPT, "-p"). + +-define(GLOBAL_QUERIES, + [{"Connections", rabbit_networking, connection_info_all, + connection_info_keys}, + {"Channels", rabbit_channel, info_all, info_keys}]). + +-define(VHOST_QUERIES, + [{"Queues", rabbit_amqqueue, info_all, info_keys}, + {"Exchanges", rabbit_exchange, info_all, info_keys}, + {"Bindings", rabbit_binding, info_all, info_keys}, + {"Consumers", rabbit_amqqueue, consumers_all, consumer_info_keys}, + {"Permissions", rabbit_auth_backend_internal, list_vhost_permissions, + vhost_perms_info_keys}]). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start/0 :: () -> no_return()). +-spec(stop/0 :: () -> 'ok'). +-spec(action/5 :: + (atom(), node(), [string()], [{string(), any()}], + fun ((string(), [any()]) -> 'ok')) + -> 'ok'). +-spec(usage/0 :: () -> no_return()). + +-endif. + +%%---------------------------------------------------------------------------- + +start() -> + {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), + {[Command0 | Args], Opts} = + case rabbit_misc:get_options([{flag, ?QUIET_OPT}, + {option, ?NODE_OPT, NodeStr}, + {option, ?VHOST_OPT, "/"}], + init:get_plain_arguments()) of + {[], _Opts} -> usage(); + CmdArgsAndOpts -> CmdArgsAndOpts + end, + Opts1 = [case K of + ?NODE_OPT -> {?NODE_OPT, rabbit_nodes:make(V)}; + _ -> {K, V} + end || {K, V} <- Opts], + Command = list_to_atom(Command0), + Quiet = proplists:get_bool(?QUIET_OPT, Opts1), + Node = proplists:get_value(?NODE_OPT, Opts1), + Inform = case Quiet of + true -> fun (_Format, _Args1) -> ok end; + false -> fun (Format, Args1) -> + io:format(Format ++ " ...~n", Args1) + end + end, + PrintInvalidCommandError = + fun () -> + print_error("invalid command '~s'", + [string:join([atom_to_list(Command) | Args], " ")]) + end, + + %% The reason we don't use a try/catch here is that rpc:call turns + %% thrown errors into normal return values + case catch action(Command, Node, Args, Opts, Inform) of + ok -> + case Quiet of + true -> ok; + false -> io:format("...done.~n") + end, + rabbit_misc:quit(0); + {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> %% < R15 + PrintInvalidCommandError(), + usage(); + {'EXIT', {function_clause, [{?MODULE, action, _, _} | _]}} -> %% >= R15 + PrintInvalidCommandError(), + usage(); + {'EXIT', {badarg, _}} -> + print_error("invalid parameter: ~p", [Args]), + usage(); + {error, Reason} -> + print_error("~p", [Reason]), + rabbit_misc:quit(2); + {error_string, Reason} -> + print_error("~s", [Reason]), + rabbit_misc:quit(2); + {badrpc, {'EXIT', Reason}} -> + print_error("~p", [Reason]), + rabbit_misc:quit(2); + {badrpc, Reason} -> + print_error("unable to connect to node ~w: ~w", [Node, Reason]), + print_badrpc_diagnostics(Node), + rabbit_misc:quit(2); + Other -> + print_error("~p", [Other]), + rabbit_misc:quit(2) + end. + +fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). + +print_report(Node, {Descr, Module, InfoFun, KeysFun}) -> + io:format("~s:~n", [Descr]), + print_report0(Node, {Module, InfoFun, KeysFun}, []). + +print_report(Node, {Descr, Module, InfoFun, KeysFun}, VHostArg) -> + io:format("~s on ~s:~n", [Descr, VHostArg]), + print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg). + +print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> + case Results = rpc_call(Node, Module, InfoFun, VHostArg) of + [_|_] -> InfoItems = rpc_call(Node, Module, KeysFun, []), + display_row([atom_to_list(I) || I <- InfoItems]), + display_info_list(Results, InfoItems); + _ -> ok + end, + io:nl(). + +print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). + +print_badrpc_diagnostics(Node) -> + fmt_stderr(rabbit_nodes:diagnostics([Node]), []). + +stop() -> + ok. + +usage() -> + io:format("~s", [rabbit_ctl_usage:usage()]), + rabbit_misc:quit(1). + +%%---------------------------------------------------------------------------- + +action(stop, Node, Args, _Opts, Inform) -> + Inform("Stopping and halting node ~p", [Node]), + Res = call(Node, {rabbit, stop_and_halt, []}), + case {Res, Args} of + {ok, [PidFile]} -> wait_for_process_death( + read_pid_file(PidFile, false)); + {ok, [_, _| _]} -> exit({badarg, Args}); + _ -> ok + end, + Res; + +action(stop_app, Node, [], _Opts, Inform) -> + Inform("Stopping node ~p", [Node]), + call(Node, {rabbit, stop, []}); + +action(start_app, Node, [], _Opts, Inform) -> + Inform("Starting node ~p", [Node]), + call(Node, {rabbit, start, []}); + +action(reset, Node, [], _Opts, Inform) -> + Inform("Resetting node ~p", [Node]), + call(Node, {rabbit_mnesia, reset, []}); + +action(force_reset, Node, [], _Opts, Inform) -> + Inform("Forcefully resetting node ~p", [Node]), + call(Node, {rabbit_mnesia, force_reset, []}); + +action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> + ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), + Inform("Clustering node ~p with ~p", + [Node, ClusterNodes]), + rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); + +action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> + ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), + Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", + [Node, ClusterNodes]), + rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); + +action(wait, Node, [PidFile], _Opts, Inform) -> + Inform("Waiting for ~p", [Node]), + wait_for_application(Node, PidFile, rabbit, Inform); + +action(wait, Node, [PidFile, App], _Opts, Inform) -> + Inform("Waiting for ~p on ~p", [App, Node]), + wait_for_application(Node, PidFile, list_to_atom(App), Inform); + +action(status, Node, [], _Opts, Inform) -> + Inform("Status of node ~p", [Node]), + display_call_result(Node, {rabbit, status, []}); + +action(cluster_status, Node, [], _Opts, Inform) -> + Inform("Cluster status of node ~p", [Node]), + display_call_result(Node, {rabbit_mnesia, status, []}); + +action(environment, Node, _App, _Opts, Inform) -> + Inform("Application environment of node ~p", [Node]), + display_call_result(Node, {rabbit, environment, []}); + +action(rotate_logs, Node, [], _Opts, Inform) -> + Inform("Reopening logs for node ~p", [Node]), + call(Node, {rabbit, rotate_logs, [""]}); +action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> + Inform("Rotating logs to files with suffix ~p", [Suffix]), + call(Node, {rabbit, rotate_logs, Args}); + +action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> + Inform("Closing connection ~s", [PidStr]), + rpc_call(Node, rabbit_networking, close_connection, + [rabbit_misc:string_to_pid(PidStr), Explanation]); + +action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> + Inform("Creating user ~p", [Username]), + call(Node, {rabbit_auth_backend_internal, add_user, Args}); + +action(delete_user, Node, Args = [_Username], _Opts, Inform) -> + Inform("Deleting user ~p", Args), + call(Node, {rabbit_auth_backend_internal, delete_user, Args}); + +action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> + Inform("Changing password for user ~p", [Username]), + call(Node, {rabbit_auth_backend_internal, change_password, Args}); + +action(clear_password, Node, Args = [Username], _Opts, Inform) -> + Inform("Clearing password for user ~p", [Username]), + call(Node, {rabbit_auth_backend_internal, clear_password, Args}); + +action(set_user_tags, Node, [Username | TagsStr], _Opts, Inform) -> + Tags = [list_to_atom(T) || T <- TagsStr], + Inform("Setting tags for user ~p to ~p", [Username, Tags]), + rpc_call(Node, rabbit_auth_backend_internal, set_tags, + [list_to_binary(Username), Tags]); + +action(list_users, Node, [], _Opts, Inform) -> + Inform("Listing users", []), + display_info_list( + call(Node, {rabbit_auth_backend_internal, list_users, []}), + rabbit_auth_backend_internal:user_info_keys()); + +action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> + Inform("Creating vhost ~p", Args), + call(Node, {rabbit_vhost, add, Args}); + +action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> + Inform("Deleting vhost ~p", Args), + call(Node, {rabbit_vhost, delete, Args}); + +action(list_vhosts, Node, Args, _Opts, Inform) -> + Inform("Listing vhosts", []), + ArgAtoms = default_if_empty(Args, [name]), + display_info_list(call(Node, {rabbit_vhost, info_all, []}), ArgAtoms); + +action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> + Inform("Listing permissions for user ~p", Args), + display_info_list(call(Node, {rabbit_auth_backend_internal, + list_user_permissions, Args}), + rabbit_auth_backend_internal:user_perms_info_keys()); + +action(list_queues, Node, Args, Opts, Inform) -> + Inform("Listing queues", []), + VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), + ArgAtoms = default_if_empty(Args, [name, messages]), + display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, + [VHostArg, ArgAtoms]), + ArgAtoms); + +action(list_exchanges, Node, Args, Opts, Inform) -> + Inform("Listing exchanges", []), + VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), + ArgAtoms = default_if_empty(Args, [name, type]), + display_info_list(rpc_call(Node, rabbit_exchange, info_all, + [VHostArg, ArgAtoms]), + ArgAtoms); + +action(list_bindings, Node, Args, Opts, Inform) -> + Inform("Listing bindings", []), + VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), + ArgAtoms = default_if_empty(Args, [source_name, source_kind, + destination_name, destination_kind, + routing_key, arguments]), + display_info_list(rpc_call(Node, rabbit_binding, info_all, + [VHostArg, ArgAtoms]), + ArgAtoms); + +action(list_connections, Node, Args, _Opts, Inform) -> + Inform("Listing connections", []), + ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), + display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, + [ArgAtoms]), + ArgAtoms); + +action(list_channels, Node, Args, _Opts, Inform) -> + Inform("Listing channels", []), + ArgAtoms = default_if_empty(Args, [pid, user, consumer_count, + messages_unacknowledged]), + display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), + ArgAtoms); + +action(list_consumers, Node, _Args, Opts, Inform) -> + Inform("Listing consumers", []), + VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), + display_info_list(rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg]), + rabbit_amqqueue:consumer_info_keys()); + +action(trace_on, Node, [], Opts, Inform) -> + VHost = proplists:get_value(?VHOST_OPT, Opts), + Inform("Starting tracing for vhost ~p", [VHost]), + rpc_call(Node, rabbit_trace, start, [list_to_binary(VHost)]); + +action(trace_off, Node, [], Opts, Inform) -> + VHost = proplists:get_value(?VHOST_OPT, Opts), + Inform("Stopping tracing for vhost ~p", [VHost]), + rpc_call(Node, rabbit_trace, stop, [list_to_binary(VHost)]); + +action(set_vm_memory_high_watermark, Node, [Arg], _Opts, Inform) -> + Frac = list_to_float(case string:chr(Arg, $.) of + 0 -> Arg ++ ".0"; + _ -> Arg + end), + Inform("Setting memory threshold on ~p to ~p", [Node, Frac]), + rpc_call(Node, vm_memory_monitor, set_vm_memory_high_watermark, [Frac]); + +action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> + VHost = proplists:get_value(?VHOST_OPT, Opts), + Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), + call(Node, {rabbit_auth_backend_internal, set_permissions, + [Username, VHost, CPerm, WPerm, RPerm]}); + +action(clear_permissions, Node, [Username], Opts, Inform) -> + VHost = proplists:get_value(?VHOST_OPT, Opts), + Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), + call(Node, {rabbit_auth_backend_internal, clear_permissions, + [Username, VHost]}); + +action(list_permissions, Node, [], Opts, Inform) -> + VHost = proplists:get_value(?VHOST_OPT, Opts), + Inform("Listing permissions in vhost ~p", [VHost]), + display_info_list(call(Node, {rabbit_auth_backend_internal, + list_vhost_permissions, [VHost]}), + rabbit_auth_backend_internal:vhost_perms_info_keys()); + +action(set_parameter, Node, [Component, Key, Value], _Opts, Inform) -> + Inform("Setting runtime parameter ~p for component ~p to ~p", + [Key, Component, Value]), + rpc_call(Node, rabbit_runtime_parameters, parse_set, + [list_to_binary(Component), list_to_binary(Key), Value]); + +action(clear_parameter, Node, [Component, Key], _Opts, Inform) -> + Inform("Clearing runtime parameter ~p for component ~p", [Key, Component]), + rpc_call(Node, rabbit_runtime_parameters, clear, [list_to_binary(Component), + list_to_binary(Key)]); + +action(list_parameters, Node, Args = [], _Opts, Inform) -> + Inform("Listing runtime parameters", []), + display_info_list( + rpc_call(Node, rabbit_runtime_parameters, list_formatted, Args), + rabbit_runtime_parameters:info_keys()); + +action(report, Node, _Args, _Opts, Inform) -> + io:format("Reporting server status on ~p~n~n", [erlang:universaltime()]), + [begin ok = action(Action, N, [], [], Inform), io:nl() end || + N <- unsafe_rpc(Node, rabbit_mnesia, running_clustered_nodes, []), + Action <- [status, cluster_status, environment]], + VHosts = unsafe_rpc(Node, rabbit_vhost, list, []), + [print_report(Node, Q) || Q <- ?GLOBAL_QUERIES], + [print_report(Node, Q, [V]) || Q <- ?VHOST_QUERIES, V <- VHosts], + io:format("End of server status report~n"), + ok; + +action(eval, Node, [Expr], _Opts, _Inform) -> + case erl_scan:string(Expr) of + {ok, Scanned, _} -> + case erl_parse:parse_exprs(Scanned) of + {ok, Parsed} -> + {value, Value, _} = unsafe_rpc( + Node, erl_eval, exprs, [Parsed, []]), + io:format("~p~n", [Value]), + ok; + {error, E} -> + {error_string, format_parse_error(E)} + end; + {error, E, _} -> + {error_string, format_parse_error(E)} + end. + +%%---------------------------------------------------------------------------- + +wait_for_application(Node, PidFile, Application, Inform) -> + Pid = read_pid_file(PidFile, true), + Inform("pid is ~s", [Pid]), + wait_for_application(Node, Pid, Application). + +wait_for_application(Node, Pid, Application) -> + while_process_is_alive(Node, Pid, + fun() -> rabbit_nodes:is_running(Node, Application) end). + +wait_for_startup(Node, Pid) -> + while_process_is_alive(Node, Pid, + fun() -> rpc:call(Node, rabbit, await_startup, []) =:= ok end). + +while_process_is_alive(Node, Pid, Activity) -> + case process_up(Pid) of + true -> case Activity() of + true -> ok; + Other -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), + while_process_is_alive(Node, Pid, Activity) + end; + false -> {error, process_not_running} + end. + +wait_for_process_death(Pid) -> + case process_up(Pid) of + true -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), + wait_for_process_death(Pid); + false -> ok + end. + +read_pid_file(PidFile, Wait) -> + case {file:read_file(PidFile), Wait} of + {{ok, Bin}, _} -> + S = string:strip(binary_to_list(Bin), right, $\n), + try list_to_integer(S) + catch error:badarg -> + exit({error, {garbage_in_pid_file, PidFile}}) + end, + S; + {{error, enoent}, true} -> + timer:sleep(?EXTERNAL_CHECK_INTERVAL), + read_pid_file(PidFile, Wait); + {{error, _} = E, _} -> + exit({error, {could_not_read_pid, E}}) + end. + +% Test using some OS clunkiness since we shouldn't trust +% rpc:call(os, getpid, []) at this point +process_up(Pid) -> + with_os([{unix, fun () -> + system("ps -p " ++ Pid + ++ " >/dev/null 2>&1") =:= 0 + end}, + {win32, fun () -> + Res = os:cmd("tasklist /nh /fi \"pid eq " ++ + Pid ++ "\" 2>&1"), + case re:run(Res, "erl\\.exe", [{capture, none}]) of + match -> true; + _ -> false + end + end}]). + +with_os(Handlers) -> + {OsFamily, _} = os:type(), + case proplists:get_value(OsFamily, Handlers) of + undefined -> throw({unsupported_os, OsFamily}); + Handler -> Handler() + end. + +% Like system(3) +system(Cmd) -> + ShCmd = "sh -c '" ++ escape_quotes(Cmd) ++ "'", + Port = erlang:open_port({spawn, ShCmd}, [exit_status,nouse_stdio]), + receive {Port, {exit_status, Status}} -> Status end. + +% Escape the quotes in a shell command so that it can be used in "sh -c 'cmd'" +escape_quotes(Cmd) -> + lists:flatten(lists:map(fun ($') -> "'\\''"; (Ch) -> Ch end, Cmd)). + +format_parse_error({_Line, Mod, Err}) -> + lists:flatten(Mod:format_error(Err)). + +%%---------------------------------------------------------------------------- + +default_if_empty(List, Default) when is_list(List) -> + if List == [] -> Default; + true -> [list_to_atom(X) || X <- List] + end. + +display_info_list(Results, InfoItemKeys) when is_list(Results) -> + lists:foreach( + fun (Result) -> display_row( + [format_info_item(proplists:get_value(X, Result)) || + X <- InfoItemKeys]) + end, Results), + ok; +display_info_list(Other, _) -> + Other. + +display_row(Row) -> + io:fwrite(string:join(Row, "\t")), + io:nl(). + +-define(IS_U8(X), (X >= 0 andalso X =< 255)). +-define(IS_U16(X), (X >= 0 andalso X =< 65535)). + +format_info_item(#resource{name = Name}) -> + escape(Name); +format_info_item({N1, N2, N3, N4} = Value) when + ?IS_U8(N1), ?IS_U8(N2), ?IS_U8(N3), ?IS_U8(N4) -> + rabbit_misc:ntoa(Value); +format_info_item({K1, K2, K3, K4, K5, K6, K7, K8} = Value) when + ?IS_U16(K1), ?IS_U16(K2), ?IS_U16(K3), ?IS_U16(K4), + ?IS_U16(K5), ?IS_U16(K6), ?IS_U16(K7), ?IS_U16(K8) -> + rabbit_misc:ntoa(Value); +format_info_item(Value) when is_pid(Value) -> + rabbit_misc:pid_to_string(Value); +format_info_item(Value) when is_binary(Value) -> + escape(Value); +format_info_item(Value) when is_atom(Value) -> + escape(atom_to_list(Value)); +format_info_item([{TableEntryKey, TableEntryType, _TableEntryValue} | _] = + Value) when is_binary(TableEntryKey) andalso + is_atom(TableEntryType) -> + io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); +format_info_item([T | _] = Value) + when is_tuple(T) orelse is_pid(T) orelse is_binary(T) orelse is_atom(T) orelse + is_list(T) -> + "[" ++ + lists:nthtail(2, lists:append( + [", " ++ format_info_item(E) || E <- Value])) ++ "]"; +format_info_item(Value) -> + io_lib:format("~w", [Value]). + +display_call_result(Node, MFA) -> + case call(Node, MFA) of + {badrpc, _} = Res -> throw(Res); + Res -> io:format("~p~n", [Res]), + ok + end. + +unsafe_rpc(Node, Mod, Fun, Args) -> + case rpc_call(Node, Mod, Fun, Args) of + {badrpc, _} = Res -> throw(Res); + Normal -> Normal + end. + +call(Node, {Mod, Fun, Args}) -> + rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). + +rpc_call(Node, Mod, Fun, Args) -> + rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). + +%% escape does C-style backslash escaping of non-printable ASCII +%% characters. We don't escape characters above 127, since they may +%% form part of UTF-8 strings. + +escape(Atom) when is_atom(Atom) -> escape(atom_to_list(Atom)); +escape(Bin) when is_binary(Bin) -> escape(binary_to_list(Bin)); +escape(L) when is_list(L) -> escape_char(lists:reverse(L), []). + +escape_char([$\\ | T], Acc) -> + escape_char(T, [$\\, $\\ | Acc]); +escape_char([X | T], Acc) when X >= 32, X /= 127 -> + escape_char(T, [X | Acc]); +escape_char([X | T], Acc) -> + escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), + $0 + (X band 7) | Acc]); +escape_char([], Acc) -> + Acc. + +prettify_amqp_table(Table) -> + [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. + +prettify_typed_amqp_value(longstr, Value) -> escape(Value); +prettify_typed_amqp_value(table, Value) -> prettify_amqp_table(Value); +prettify_typed_amqp_value(array, Value) -> [prettify_typed_amqp_value(T, V) || + {T, V} <- Value]; +prettify_typed_amqp_value(_Type, Value) -> Value. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 96b5fa38..c73a51c9 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1573,7 +1573,7 @@ control_action(Command, Args, NewOpts) -> expand_options(default_options(), NewOpts)). control_action(Command, Node, Args, Opts) -> - case catch rabbit_control:action( + case catch rabbit_control_main:action( Command, Node, Args, Opts, fun (Format, Args1) -> io:format(Format ++ " ...~n", Args1) -- cgit v1.2.1 From 16f7ddfa4fefe749f5da47a419b8ababf1d05813 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 13:14:36 +0100 Subject: move rabbit_control to the same naming scheme as rabbit_plugins --- scripts/rabbitmqctl | 2 +- scripts/rabbitmqctl.bat | 2 +- src/rabbit_control.erl | 581 -------------------------------------------- src/rabbit_control_main.erl | 581 ++++++++++++++++++++++++++++++++++++++++++++ src/rabbit_tests.erl | 2 +- 5 files changed, 584 insertions(+), 584 deletions(-) delete mode 100644 src/rabbit_control.erl create mode 100644 src/rabbit_control_main.erl diff --git a/scripts/rabbitmqctl b/scripts/rabbitmqctl index 4aad6b8f..a5fade72 100755 --- a/scripts/rabbitmqctl +++ b/scripts/rabbitmqctl @@ -32,6 +32,6 @@ exec erl \ -hidden \ ${RABBITMQ_CTL_ERL_ARGS} \ -sname rabbitmqctl$$ \ - -s rabbit_control \ + -s rabbit_control_main \ -nodename $RABBITMQ_NODENAME \ -extra "$@" diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index f37fae48..55a3d8b2 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,7 +43,7 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! +"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control_main -nodename !RABBITMQ_NODENAME! -extra !STAR! endlocal endlocal diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl deleted file mode 100644 index 6dc8d445..00000000 --- a/src/rabbit_control.erl +++ /dev/null @@ -1,581 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is VMware, Inc. -%% Copyright (c) 2007-2012 VMware, Inc. All rights reserved. -%% - --module(rabbit_control). --include("rabbit.hrl"). - --export([start/0, stop/0, action/5]). - --define(RPC_TIMEOUT, infinity). --define(EXTERNAL_CHECK_INTERVAL, 1000). - --define(QUIET_OPT, "-q"). --define(NODE_OPT, "-n"). --define(VHOST_OPT, "-p"). - --define(GLOBAL_QUERIES, - [{"Connections", rabbit_networking, connection_info_all, - connection_info_keys}, - {"Channels", rabbit_channel, info_all, info_keys}]). - --define(VHOST_QUERIES, - [{"Queues", rabbit_amqqueue, info_all, info_keys}, - {"Exchanges", rabbit_exchange, info_all, info_keys}, - {"Bindings", rabbit_binding, info_all, info_keys}, - {"Consumers", rabbit_amqqueue, consumers_all, consumer_info_keys}, - {"Permissions", rabbit_auth_backend_internal, list_vhost_permissions, - vhost_perms_info_keys}]). - -%%---------------------------------------------------------------------------- - --ifdef(use_specs). - --spec(start/0 :: () -> no_return()). --spec(stop/0 :: () -> 'ok'). --spec(action/5 :: - (atom(), node(), [string()], [{string(), any()}], - fun ((string(), [any()]) -> 'ok')) - -> 'ok'). --spec(usage/0 :: () -> no_return()). - --endif. - -%%---------------------------------------------------------------------------- - -start() -> - {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), - {[Command0 | Args], Opts} = - case rabbit_misc:get_options([{flag, ?QUIET_OPT}, - {option, ?NODE_OPT, NodeStr}, - {option, ?VHOST_OPT, "/"}], - init:get_plain_arguments()) of - {[], _Opts} -> usage(); - CmdArgsAndOpts -> CmdArgsAndOpts - end, - Opts1 = [case K of - ?NODE_OPT -> {?NODE_OPT, rabbit_nodes:make(V)}; - _ -> {K, V} - end || {K, V} <- Opts], - Command = list_to_atom(Command0), - Quiet = proplists:get_bool(?QUIET_OPT, Opts1), - Node = proplists:get_value(?NODE_OPT, Opts1), - Inform = case Quiet of - true -> fun (_Format, _Args1) -> ok end; - false -> fun (Format, Args1) -> - io:format(Format ++ " ...~n", Args1) - end - end, - PrintInvalidCommandError = - fun () -> - print_error("invalid command '~s'", - [string:join([atom_to_list(Command) | Args], " ")]) - end, - - %% The reason we don't use a try/catch here is that rpc:call turns - %% thrown errors into normal return values - case catch action(Command, Node, Args, Opts, Inform) of - ok -> - case Quiet of - true -> ok; - false -> io:format("...done.~n") - end, - rabbit_misc:quit(0); - {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> %% < R15 - PrintInvalidCommandError(), - usage(); - {'EXIT', {function_clause, [{?MODULE, action, _, _} | _]}} -> %% >= R15 - PrintInvalidCommandError(), - usage(); - {'EXIT', {badarg, _}} -> - print_error("invalid parameter: ~p", [Args]), - usage(); - {error, Reason} -> - print_error("~p", [Reason]), - rabbit_misc:quit(2); - {error_string, Reason} -> - print_error("~s", [Reason]), - rabbit_misc:quit(2); - {badrpc, {'EXIT', Reason}} -> - print_error("~p", [Reason]), - rabbit_misc:quit(2); - {badrpc, Reason} -> - print_error("unable to connect to node ~w: ~w", [Node, Reason]), - print_badrpc_diagnostics(Node), - rabbit_misc:quit(2); - Other -> - print_error("~p", [Other]), - rabbit_misc:quit(2) - end. - -fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). - -print_report(Node, {Descr, Module, InfoFun, KeysFun}) -> - io:format("~s:~n", [Descr]), - print_report0(Node, {Module, InfoFun, KeysFun}, []). - -print_report(Node, {Descr, Module, InfoFun, KeysFun}, VHostArg) -> - io:format("~s on ~s:~n", [Descr, VHostArg]), - print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg). - -print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> - case Results = rpc_call(Node, Module, InfoFun, VHostArg) of - [_|_] -> InfoItems = rpc_call(Node, Module, KeysFun, []), - display_row([atom_to_list(I) || I <- InfoItems]), - display_info_list(Results, InfoItems); - _ -> ok - end, - io:nl(). - -print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). - -print_badrpc_diagnostics(Node) -> - fmt_stderr(rabbit_nodes:diagnostics([Node]), []). - -stop() -> - ok. - -usage() -> - io:format("~s", [rabbit_ctl_usage:usage()]), - rabbit_misc:quit(1). - -%%---------------------------------------------------------------------------- - -action(stop, Node, Args, _Opts, Inform) -> - Inform("Stopping and halting node ~p", [Node]), - Res = call(Node, {rabbit, stop_and_halt, []}), - case {Res, Args} of - {ok, [PidFile]} -> wait_for_process_death( - read_pid_file(PidFile, false)); - {ok, [_, _| _]} -> exit({badarg, Args}); - _ -> ok - end, - Res; - -action(stop_app, Node, [], _Opts, Inform) -> - Inform("Stopping node ~p", [Node]), - call(Node, {rabbit, stop, []}); - -action(start_app, Node, [], _Opts, Inform) -> - Inform("Starting node ~p", [Node]), - call(Node, {rabbit, start, []}); - -action(reset, Node, [], _Opts, Inform) -> - Inform("Resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, reset, []}); - -action(force_reset, Node, [], _Opts, Inform) -> - Inform("Forcefully resetting node ~p", [Node]), - call(Node, {rabbit_mnesia, force_reset, []}); - -action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Clustering node ~p with ~p", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); - -action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> - ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), - Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", - [Node, ClusterNodes]), - rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); - -action(wait, Node, [PidFile], _Opts, Inform) -> - Inform("Waiting for ~p", [Node]), - wait_for_application(Node, PidFile, rabbit, Inform); - -action(wait, Node, [PidFile, App], _Opts, Inform) -> - Inform("Waiting for ~p on ~p", [App, Node]), - wait_for_application(Node, PidFile, list_to_atom(App), Inform); - -action(status, Node, [], _Opts, Inform) -> - Inform("Status of node ~p", [Node]), - display_call_result(Node, {rabbit, status, []}); - -action(cluster_status, Node, [], _Opts, Inform) -> - Inform("Cluster status of node ~p", [Node]), - display_call_result(Node, {rabbit_mnesia, status, []}); - -action(environment, Node, _App, _Opts, Inform) -> - Inform("Application environment of node ~p", [Node]), - display_call_result(Node, {rabbit, environment, []}); - -action(rotate_logs, Node, [], _Opts, Inform) -> - Inform("Reopening logs for node ~p", [Node]), - call(Node, {rabbit, rotate_logs, [""]}); -action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), - call(Node, {rabbit, rotate_logs, Args}); - -action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> - Inform("Closing connection ~s", [PidStr]), - rpc_call(Node, rabbit_networking, close_connection, - [rabbit_misc:string_to_pid(PidStr), Explanation]); - -action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> - Inform("Creating user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, add_user, Args}); - -action(delete_user, Node, Args = [_Username], _Opts, Inform) -> - Inform("Deleting user ~p", Args), - call(Node, {rabbit_auth_backend_internal, delete_user, Args}); - -action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> - Inform("Changing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, change_password, Args}); - -action(clear_password, Node, Args = [Username], _Opts, Inform) -> - Inform("Clearing password for user ~p", [Username]), - call(Node, {rabbit_auth_backend_internal, clear_password, Args}); - -action(set_user_tags, Node, [Username | TagsStr], _Opts, Inform) -> - Tags = [list_to_atom(T) || T <- TagsStr], - Inform("Setting tags for user ~p to ~p", [Username, Tags]), - rpc_call(Node, rabbit_auth_backend_internal, set_tags, - [list_to_binary(Username), Tags]); - -action(list_users, Node, [], _Opts, Inform) -> - Inform("Listing users", []), - display_info_list( - call(Node, {rabbit_auth_backend_internal, list_users, []}), - rabbit_auth_backend_internal:user_info_keys()); - -action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Creating vhost ~p", Args), - call(Node, {rabbit_vhost, add, Args}); - -action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Deleting vhost ~p", Args), - call(Node, {rabbit_vhost, delete, Args}); - -action(list_vhosts, Node, Args, _Opts, Inform) -> - Inform("Listing vhosts", []), - ArgAtoms = default_if_empty(Args, [name]), - display_info_list(call(Node, {rabbit_vhost, info_all, []}), ArgAtoms); - -action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> - Inform("Listing permissions for user ~p", Args), - display_info_list(call(Node, {rabbit_auth_backend_internal, - list_user_permissions, Args}), - rabbit_auth_backend_internal:user_perms_info_keys()); - -action(list_queues, Node, Args, Opts, Inform) -> - Inform("Listing queues", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, messages]), - display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_exchanges, Node, Args, Opts, Inform) -> - Inform("Listing exchanges", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [name, type]), - display_info_list(rpc_call(Node, rabbit_exchange, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_bindings, Node, Args, Opts, Inform) -> - Inform("Listing bindings", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - ArgAtoms = default_if_empty(Args, [source_name, source_kind, - destination_name, destination_kind, - routing_key, arguments]), - display_info_list(rpc_call(Node, rabbit_binding, info_all, - [VHostArg, ArgAtoms]), - ArgAtoms); - -action(list_connections, Node, Args, _Opts, Inform) -> - Inform("Listing connections", []), - ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), - display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, - [ArgAtoms]), - ArgAtoms); - -action(list_channels, Node, Args, _Opts, Inform) -> - Inform("Listing channels", []), - ArgAtoms = default_if_empty(Args, [pid, user, consumer_count, - messages_unacknowledged]), - display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), - ArgAtoms); - -action(list_consumers, Node, _Args, Opts, Inform) -> - Inform("Listing consumers", []), - VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), - display_info_list(rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg]), - rabbit_amqqueue:consumer_info_keys()); - -action(trace_on, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Starting tracing for vhost ~p", [VHost]), - rpc_call(Node, rabbit_trace, start, [list_to_binary(VHost)]); - -action(trace_off, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Stopping tracing for vhost ~p", [VHost]), - rpc_call(Node, rabbit_trace, stop, [list_to_binary(VHost)]); - -action(set_vm_memory_high_watermark, Node, [Arg], _Opts, Inform) -> - Frac = list_to_float(case string:chr(Arg, $.) of - 0 -> Arg ++ ".0"; - _ -> Arg - end), - Inform("Setting memory threshold on ~p to ~p", [Node, Frac]), - rpc_call(Node, vm_memory_monitor, set_vm_memory_high_watermark, [Frac]); - -action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, set_permissions, - [Username, VHost, CPerm, WPerm, RPerm]}); - -action(clear_permissions, Node, [Username], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), - call(Node, {rabbit_auth_backend_internal, clear_permissions, - [Username, VHost]}); - -action(list_permissions, Node, [], Opts, Inform) -> - VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Listing permissions in vhost ~p", [VHost]), - display_info_list(call(Node, {rabbit_auth_backend_internal, - list_vhost_permissions, [VHost]}), - rabbit_auth_backend_internal:vhost_perms_info_keys()); - -action(set_parameter, Node, [Component, Key, Value], _Opts, Inform) -> - Inform("Setting runtime parameter ~p for component ~p to ~p", - [Key, Component, Value]), - rpc_call(Node, rabbit_runtime_parameters, parse_set, - [list_to_binary(Component), list_to_binary(Key), Value]); - -action(clear_parameter, Node, [Component, Key], _Opts, Inform) -> - Inform("Clearing runtime parameter ~p for component ~p", [Key, Component]), - rpc_call(Node, rabbit_runtime_parameters, clear, [list_to_binary(Component), - list_to_binary(Key)]); - -action(list_parameters, Node, Args = [], _Opts, Inform) -> - Inform("Listing runtime parameters", []), - display_info_list( - rpc_call(Node, rabbit_runtime_parameters, list_formatted, Args), - rabbit_runtime_parameters:info_keys()); - -action(report, Node, _Args, _Opts, Inform) -> - io:format("Reporting server status on ~p~n~n", [erlang:universaltime()]), - [begin ok = action(Action, N, [], [], Inform), io:nl() end || - N <- unsafe_rpc(Node, rabbit_mnesia, running_clustered_nodes, []), - Action <- [status, cluster_status, environment]], - VHosts = unsafe_rpc(Node, rabbit_vhost, list, []), - [print_report(Node, Q) || Q <- ?GLOBAL_QUERIES], - [print_report(Node, Q, [V]) || Q <- ?VHOST_QUERIES, V <- VHosts], - io:format("End of server status report~n"), - ok; - -action(eval, Node, [Expr], _Opts, _Inform) -> - case erl_scan:string(Expr) of - {ok, Scanned, _} -> - case erl_parse:parse_exprs(Scanned) of - {ok, Parsed} -> - {value, Value, _} = unsafe_rpc( - Node, erl_eval, exprs, [Parsed, []]), - io:format("~p~n", [Value]), - ok; - {error, E} -> - {error_string, format_parse_error(E)} - end; - {error, E, _} -> - {error_string, format_parse_error(E)} - end. - -%%---------------------------------------------------------------------------- - -wait_for_application(Node, PidFile, Application, Inform) -> - Pid = read_pid_file(PidFile, true), - Inform("pid is ~s", [Pid]), - wait_for_application(Node, Pid, Application). - -wait_for_application(Node, Pid, Application) -> - while_process_is_alive(Node, Pid, - fun() -> rabbit_nodes:is_running(Node, Application) end). - -wait_for_startup(Node, Pid) -> - while_process_is_alive(Node, Pid, - fun() -> rpc:call(Node, rabbit, await_startup, []) =:= ok end). - -while_process_is_alive(Node, Pid, Activity) -> - case process_up(Pid) of - true -> case Activity() of - true -> ok; - Other -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), - while_process_is_alive(Node, Pid, Activity) - end; - false -> {error, process_not_running} - end. - -wait_for_process_death(Pid) -> - case process_up(Pid) of - true -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), - wait_for_process_death(Pid); - false -> ok - end. - -read_pid_file(PidFile, Wait) -> - case {file:read_file(PidFile), Wait} of - {{ok, Bin}, _} -> - S = string:strip(binary_to_list(Bin), right, $\n), - try list_to_integer(S) - catch error:badarg -> - exit({error, {garbage_in_pid_file, PidFile}}) - end, - S; - {{error, enoent}, true} -> - timer:sleep(?EXTERNAL_CHECK_INTERVAL), - read_pid_file(PidFile, Wait); - {{error, _} = E, _} -> - exit({error, {could_not_read_pid, E}}) - end. - -% Test using some OS clunkiness since we shouldn't trust -% rpc:call(os, getpid, []) at this point -process_up(Pid) -> - with_os([{unix, fun () -> - system("ps -p " ++ Pid - ++ " >/dev/null 2>&1") =:= 0 - end}, - {win32, fun () -> - Res = os:cmd("tasklist /nh /fi \"pid eq " ++ - Pid ++ "\" 2>&1"), - case re:run(Res, "erl\\.exe", [{capture, none}]) of - match -> true; - _ -> false - end - end}]). - -with_os(Handlers) -> - {OsFamily, _} = os:type(), - case proplists:get_value(OsFamily, Handlers) of - undefined -> throw({unsupported_os, OsFamily}); - Handler -> Handler() - end. - -% Like system(3) -system(Cmd) -> - ShCmd = "sh -c '" ++ escape_quotes(Cmd) ++ "'", - Port = erlang:open_port({spawn, ShCmd}, [exit_status,nouse_stdio]), - receive {Port, {exit_status, Status}} -> Status end. - -% Escape the quotes in a shell command so that it can be used in "sh -c 'cmd'" -escape_quotes(Cmd) -> - lists:flatten(lists:map(fun ($') -> "'\\''"; (Ch) -> Ch end, Cmd)). - -format_parse_error({_Line, Mod, Err}) -> - lists:flatten(Mod:format_error(Err)). - -%%---------------------------------------------------------------------------- - -default_if_empty(List, Default) when is_list(List) -> - if List == [] -> Default; - true -> [list_to_atom(X) || X <- List] - end. - -display_info_list(Results, InfoItemKeys) when is_list(Results) -> - lists:foreach( - fun (Result) -> display_row( - [format_info_item(proplists:get_value(X, Result)) || - X <- InfoItemKeys]) - end, Results), - ok; -display_info_list(Other, _) -> - Other. - -display_row(Row) -> - io:fwrite(string:join(Row, "\t")), - io:nl(). - --define(IS_U8(X), (X >= 0 andalso X =< 255)). --define(IS_U16(X), (X >= 0 andalso X =< 65535)). - -format_info_item(#resource{name = Name}) -> - escape(Name); -format_info_item({N1, N2, N3, N4} = Value) when - ?IS_U8(N1), ?IS_U8(N2), ?IS_U8(N3), ?IS_U8(N4) -> - rabbit_misc:ntoa(Value); -format_info_item({K1, K2, K3, K4, K5, K6, K7, K8} = Value) when - ?IS_U16(K1), ?IS_U16(K2), ?IS_U16(K3), ?IS_U16(K4), - ?IS_U16(K5), ?IS_U16(K6), ?IS_U16(K7), ?IS_U16(K8) -> - rabbit_misc:ntoa(Value); -format_info_item(Value) when is_pid(Value) -> - rabbit_misc:pid_to_string(Value); -format_info_item(Value) when is_binary(Value) -> - escape(Value); -format_info_item(Value) when is_atom(Value) -> - escape(atom_to_list(Value)); -format_info_item([{TableEntryKey, TableEntryType, _TableEntryValue} | _] = - Value) when is_binary(TableEntryKey) andalso - is_atom(TableEntryType) -> - io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); -format_info_item([T | _] = Value) - when is_tuple(T) orelse is_pid(T) orelse is_binary(T) orelse is_atom(T) orelse - is_list(T) -> - "[" ++ - lists:nthtail(2, lists:append( - [", " ++ format_info_item(E) || E <- Value])) ++ "]"; -format_info_item(Value) -> - io_lib:format("~w", [Value]). - -display_call_result(Node, MFA) -> - case call(Node, MFA) of - {badrpc, _} = Res -> throw(Res); - Res -> io:format("~p~n", [Res]), - ok - end. - -unsafe_rpc(Node, Mod, Fun, Args) -> - case rpc_call(Node, Mod, Fun, Args) of - {badrpc, _} = Res -> throw(Res); - Normal -> Normal - end. - -call(Node, {Mod, Fun, Args}) -> - rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). - -rpc_call(Node, Mod, Fun, Args) -> - rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). - -%% escape does C-style backslash escaping of non-printable ASCII -%% characters. We don't escape characters above 127, since they may -%% form part of UTF-8 strings. - -escape(Atom) when is_atom(Atom) -> escape(atom_to_list(Atom)); -escape(Bin) when is_binary(Bin) -> escape(binary_to_list(Bin)); -escape(L) when is_list(L) -> escape_char(lists:reverse(L), []). - -escape_char([$\\ | T], Acc) -> - escape_char(T, [$\\, $\\ | Acc]); -escape_char([X | T], Acc) when X >= 32, X /= 127 -> - escape_char(T, [X | Acc]); -escape_char([X | T], Acc) -> - escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), - $0 + (X band 7) | Acc]); -escape_char([], Acc) -> - Acc. - -prettify_amqp_table(Table) -> - [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. - -prettify_typed_amqp_value(longstr, Value) -> escape(Value); -prettify_typed_amqp_value(table, Value) -> prettify_amqp_table(Value); -prettify_typed_amqp_value(array, Value) -> [prettify_typed_amqp_value(T, V) || - {T, V} <- Value]; -prettify_typed_amqp_value(_Type, Value) -> Value. diff --git a/src/rabbit_control_main.erl b/src/rabbit_control_main.erl new file mode 100644 index 00000000..b1c120bd --- /dev/null +++ b/src/rabbit_control_main.erl @@ -0,0 +1,581 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2007-2012 VMware, Inc. All rights reserved. +%% + +-module(rabbit_control_main). +-include("rabbit.hrl"). + +-export([start/0, stop/0, action/5]). + +-define(RPC_TIMEOUT, infinity). +-define(EXTERNAL_CHECK_INTERVAL, 1000). + +-define(QUIET_OPT, "-q"). +-define(NODE_OPT, "-n"). +-define(VHOST_OPT, "-p"). + +-define(GLOBAL_QUERIES, + [{"Connections", rabbit_networking, connection_info_all, + connection_info_keys}, + {"Channels", rabbit_channel, info_all, info_keys}]). + +-define(VHOST_QUERIES, + [{"Queues", rabbit_amqqueue, info_all, info_keys}, + {"Exchanges", rabbit_exchange, info_all, info_keys}, + {"Bindings", rabbit_binding, info_all, info_keys}, + {"Consumers", rabbit_amqqueue, consumers_all, consumer_info_keys}, + {"Permissions", rabbit_auth_backend_internal, list_vhost_permissions, + vhost_perms_info_keys}]). + +%%---------------------------------------------------------------------------- + +-ifdef(use_specs). + +-spec(start/0 :: () -> no_return()). +-spec(stop/0 :: () -> 'ok'). +-spec(action/5 :: + (atom(), node(), [string()], [{string(), any()}], + fun ((string(), [any()]) -> 'ok')) + -> 'ok'). +-spec(usage/0 :: () -> no_return()). + +-endif. + +%%---------------------------------------------------------------------------- + +start() -> + {ok, [[NodeStr|_]|_]} = init:get_argument(nodename), + {[Command0 | Args], Opts} = + case rabbit_misc:get_options([{flag, ?QUIET_OPT}, + {option, ?NODE_OPT, NodeStr}, + {option, ?VHOST_OPT, "/"}], + init:get_plain_arguments()) of + {[], _Opts} -> usage(); + CmdArgsAndOpts -> CmdArgsAndOpts + end, + Opts1 = [case K of + ?NODE_OPT -> {?NODE_OPT, rabbit_nodes:make(V)}; + _ -> {K, V} + end || {K, V} <- Opts], + Command = list_to_atom(Command0), + Quiet = proplists:get_bool(?QUIET_OPT, Opts1), + Node = proplists:get_value(?NODE_OPT, Opts1), + Inform = case Quiet of + true -> fun (_Format, _Args1) -> ok end; + false -> fun (Format, Args1) -> + io:format(Format ++ " ...~n", Args1) + end + end, + PrintInvalidCommandError = + fun () -> + print_error("invalid command '~s'", + [string:join([atom_to_list(Command) | Args], " ")]) + end, + + %% The reason we don't use a try/catch here is that rpc:call turns + %% thrown errors into normal return values + case catch action(Command, Node, Args, Opts, Inform) of + ok -> + case Quiet of + true -> ok; + false -> io:format("...done.~n") + end, + rabbit_misc:quit(0); + {'EXIT', {function_clause, [{?MODULE, action, _} | _]}} -> %% < R15 + PrintInvalidCommandError(), + usage(); + {'EXIT', {function_clause, [{?MODULE, action, _, _} | _]}} -> %% >= R15 + PrintInvalidCommandError(), + usage(); + {'EXIT', {badarg, _}} -> + print_error("invalid parameter: ~p", [Args]), + usage(); + {error, Reason} -> + print_error("~p", [Reason]), + rabbit_misc:quit(2); + {error_string, Reason} -> + print_error("~s", [Reason]), + rabbit_misc:quit(2); + {badrpc, {'EXIT', Reason}} -> + print_error("~p", [Reason]), + rabbit_misc:quit(2); + {badrpc, Reason} -> + print_error("unable to connect to node ~w: ~w", [Node, Reason]), + print_badrpc_diagnostics(Node), + rabbit_misc:quit(2); + Other -> + print_error("~p", [Other]), + rabbit_misc:quit(2) + end. + +fmt_stderr(Format, Args) -> rabbit_misc:format_stderr(Format ++ "~n", Args). + +print_report(Node, {Descr, Module, InfoFun, KeysFun}) -> + io:format("~s:~n", [Descr]), + print_report0(Node, {Module, InfoFun, KeysFun}, []). + +print_report(Node, {Descr, Module, InfoFun, KeysFun}, VHostArg) -> + io:format("~s on ~s:~n", [Descr, VHostArg]), + print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg). + +print_report0(Node, {Module, InfoFun, KeysFun}, VHostArg) -> + case Results = rpc_call(Node, Module, InfoFun, VHostArg) of + [_|_] -> InfoItems = rpc_call(Node, Module, KeysFun, []), + display_row([atom_to_list(I) || I <- InfoItems]), + display_info_list(Results, InfoItems); + _ -> ok + end, + io:nl(). + +print_error(Format, Args) -> fmt_stderr("Error: " ++ Format, Args). + +print_badrpc_diagnostics(Node) -> + fmt_stderr(rabbit_nodes:diagnostics([Node]), []). + +stop() -> + ok. + +usage() -> + io:format("~s", [rabbit_ctl_usage:usage()]), + rabbit_misc:quit(1). + +%%---------------------------------------------------------------------------- + +action(stop, Node, Args, _Opts, Inform) -> + Inform("Stopping and halting node ~p", [Node]), + Res = call(Node, {rabbit, stop_and_halt, []}), + case {Res, Args} of + {ok, [PidFile]} -> wait_for_process_death( + read_pid_file(PidFile, false)); + {ok, [_, _| _]} -> exit({badarg, Args}); + _ -> ok + end, + Res; + +action(stop_app, Node, [], _Opts, Inform) -> + Inform("Stopping node ~p", [Node]), + call(Node, {rabbit, stop, []}); + +action(start_app, Node, [], _Opts, Inform) -> + Inform("Starting node ~p", [Node]), + call(Node, {rabbit, start, []}); + +action(reset, Node, [], _Opts, Inform) -> + Inform("Resetting node ~p", [Node]), + call(Node, {rabbit_mnesia, reset, []}); + +action(force_reset, Node, [], _Opts, Inform) -> + Inform("Forcefully resetting node ~p", [Node]), + call(Node, {rabbit_mnesia, force_reset, []}); + +action(cluster, Node, ClusterNodeSs, _Opts, Inform) -> + ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), + Inform("Clustering node ~p with ~p", + [Node, ClusterNodes]), + rpc_call(Node, rabbit_mnesia, cluster, [ClusterNodes]); + +action(force_cluster, Node, ClusterNodeSs, _Opts, Inform) -> + ClusterNodes = lists:map(fun list_to_atom/1, ClusterNodeSs), + Inform("Forcefully clustering node ~p with ~p (ignoring offline nodes)", + [Node, ClusterNodes]), + rpc_call(Node, rabbit_mnesia, force_cluster, [ClusterNodes]); + +action(wait, Node, [PidFile], _Opts, Inform) -> + Inform("Waiting for ~p", [Node]), + wait_for_application(Node, PidFile, rabbit, Inform); + +action(wait, Node, [PidFile, App], _Opts, Inform) -> + Inform("Waiting for ~p on ~p", [App, Node]), + wait_for_application(Node, PidFile, list_to_atom(App), Inform); + +action(status, Node, [], _Opts, Inform) -> + Inform("Status of node ~p", [Node]), + display_call_result(Node, {rabbit, status, []}); + +action(cluster_status, Node, [], _Opts, Inform) -> + Inform("Cluster status of node ~p", [Node]), + display_call_result(Node, {rabbit_mnesia, status, []}); + +action(environment, Node, _App, _Opts, Inform) -> + Inform("Application environment of node ~p", [Node]), + display_call_result(Node, {rabbit, environment, []}); + +action(rotate_logs, Node, [], _Opts, Inform) -> + Inform("Reopening logs for node ~p", [Node]), + call(Node, {rabbit, rotate_logs, [""]}); +action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> + Inform("Rotating logs to files with suffix ~p", [Suffix]), + call(Node, {rabbit, rotate_logs, Args}); + +action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> + Inform("Closing connection ~s", [PidStr]), + rpc_call(Node, rabbit_networking, close_connection, + [rabbit_misc:string_to_pid(PidStr), Explanation]); + +action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> + Inform("Creating user ~p", [Username]), + call(Node, {rabbit_auth_backend_internal, add_user, Args}); + +action(delete_user, Node, Args = [_Username], _Opts, Inform) -> + Inform("Deleting user ~p", Args), + call(Node, {rabbit_auth_backend_internal, delete_user, Args}); + +action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> + Inform("Changing password for user ~p", [Username]), + call(Node, {rabbit_auth_backend_internal, change_password, Args}); + +action(clear_password, Node, Args = [Username], _Opts, Inform) -> + Inform("Clearing password for user ~p", [Username]), + call(Node, {rabbit_auth_backend_internal, clear_password, Args}); + +action(set_user_tags, Node, [Username | TagsStr], _Opts, Inform) -> + Tags = [list_to_atom(T) || T <- TagsStr], + Inform("Setting tags for user ~p to ~p", [Username, Tags]), + rpc_call(Node, rabbit_auth_backend_internal, set_tags, + [list_to_binary(Username), Tags]); + +action(list_users, Node, [], _Opts, Inform) -> + Inform("Listing users", []), + display_info_list( + call(Node, {rabbit_auth_backend_internal, list_users, []}), + rabbit_auth_backend_internal:user_info_keys()); + +action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> + Inform("Creating vhost ~p", Args), + call(Node, {rabbit_vhost, add, Args}); + +action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> + Inform("Deleting vhost ~p", Args), + call(Node, {rabbit_vhost, delete, Args}); + +action(list_vhosts, Node, Args, _Opts, Inform) -> + Inform("Listing vhosts", []), + ArgAtoms = default_if_empty(Args, [name]), + display_info_list(call(Node, {rabbit_vhost, info_all, []}), ArgAtoms); + +action(list_user_permissions, Node, Args = [_Username], _Opts, Inform) -> + Inform("Listing permissions for user ~p", Args), + display_info_list(call(Node, {rabbit_auth_backend_internal, + list_user_permissions, Args}), + rabbit_auth_backend_internal:user_perms_info_keys()); + +action(list_queues, Node, Args, Opts, Inform) -> + Inform("Listing queues", []), + VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), + ArgAtoms = default_if_empty(Args, [name, messages]), + display_info_list(rpc_call(Node, rabbit_amqqueue, info_all, + [VHostArg, ArgAtoms]), + ArgAtoms); + +action(list_exchanges, Node, Args, Opts, Inform) -> + Inform("Listing exchanges", []), + VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), + ArgAtoms = default_if_empty(Args, [name, type]), + display_info_list(rpc_call(Node, rabbit_exchange, info_all, + [VHostArg, ArgAtoms]), + ArgAtoms); + +action(list_bindings, Node, Args, Opts, Inform) -> + Inform("Listing bindings", []), + VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), + ArgAtoms = default_if_empty(Args, [source_name, source_kind, + destination_name, destination_kind, + routing_key, arguments]), + display_info_list(rpc_call(Node, rabbit_binding, info_all, + [VHostArg, ArgAtoms]), + ArgAtoms); + +action(list_connections, Node, Args, _Opts, Inform) -> + Inform("Listing connections", []), + ArgAtoms = default_if_empty(Args, [user, peer_address, peer_port, state]), + display_info_list(rpc_call(Node, rabbit_networking, connection_info_all, + [ArgAtoms]), + ArgAtoms); + +action(list_channels, Node, Args, _Opts, Inform) -> + Inform("Listing channels", []), + ArgAtoms = default_if_empty(Args, [pid, user, consumer_count, + messages_unacknowledged]), + display_info_list(rpc_call(Node, rabbit_channel, info_all, [ArgAtoms]), + ArgAtoms); + +action(list_consumers, Node, _Args, Opts, Inform) -> + Inform("Listing consumers", []), + VHostArg = list_to_binary(proplists:get_value(?VHOST_OPT, Opts)), + display_info_list(rpc_call(Node, rabbit_amqqueue, consumers_all, [VHostArg]), + rabbit_amqqueue:consumer_info_keys()); + +action(trace_on, Node, [], Opts, Inform) -> + VHost = proplists:get_value(?VHOST_OPT, Opts), + Inform("Starting tracing for vhost ~p", [VHost]), + rpc_call(Node, rabbit_trace, start, [list_to_binary(VHost)]); + +action(trace_off, Node, [], Opts, Inform) -> + VHost = proplists:get_value(?VHOST_OPT, Opts), + Inform("Stopping tracing for vhost ~p", [VHost]), + rpc_call(Node, rabbit_trace, stop, [list_to_binary(VHost)]); + +action(set_vm_memory_high_watermark, Node, [Arg], _Opts, Inform) -> + Frac = list_to_float(case string:chr(Arg, $.) of + 0 -> Arg ++ ".0"; + _ -> Arg + end), + Inform("Setting memory threshold on ~p to ~p", [Node, Frac]), + rpc_call(Node, vm_memory_monitor, set_vm_memory_high_watermark, [Frac]); + +action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> + VHost = proplists:get_value(?VHOST_OPT, Opts), + Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), + call(Node, {rabbit_auth_backend_internal, set_permissions, + [Username, VHost, CPerm, WPerm, RPerm]}); + +action(clear_permissions, Node, [Username], Opts, Inform) -> + VHost = proplists:get_value(?VHOST_OPT, Opts), + Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), + call(Node, {rabbit_auth_backend_internal, clear_permissions, + [Username, VHost]}); + +action(list_permissions, Node, [], Opts, Inform) -> + VHost = proplists:get_value(?VHOST_OPT, Opts), + Inform("Listing permissions in vhost ~p", [VHost]), + display_info_list(call(Node, {rabbit_auth_backend_internal, + list_vhost_permissions, [VHost]}), + rabbit_auth_backend_internal:vhost_perms_info_keys()); + +action(set_parameter, Node, [Component, Key, Value], _Opts, Inform) -> + Inform("Setting runtime parameter ~p for component ~p to ~p", + [Key, Component, Value]), + rpc_call(Node, rabbit_runtime_parameters, parse_set, + [list_to_binary(Component), list_to_binary(Key), Value]); + +action(clear_parameter, Node, [Component, Key], _Opts, Inform) -> + Inform("Clearing runtime parameter ~p for component ~p", [Key, Component]), + rpc_call(Node, rabbit_runtime_parameters, clear, [list_to_binary(Component), + list_to_binary(Key)]); + +action(list_parameters, Node, Args = [], _Opts, Inform) -> + Inform("Listing runtime parameters", []), + display_info_list( + rpc_call(Node, rabbit_runtime_parameters, list_formatted, Args), + rabbit_runtime_parameters:info_keys()); + +action(report, Node, _Args, _Opts, Inform) -> + io:format("Reporting server status on ~p~n~n", [erlang:universaltime()]), + [begin ok = action(Action, N, [], [], Inform), io:nl() end || + N <- unsafe_rpc(Node, rabbit_mnesia, running_clustered_nodes, []), + Action <- [status, cluster_status, environment]], + VHosts = unsafe_rpc(Node, rabbit_vhost, list, []), + [print_report(Node, Q) || Q <- ?GLOBAL_QUERIES], + [print_report(Node, Q, [V]) || Q <- ?VHOST_QUERIES, V <- VHosts], + io:format("End of server status report~n"), + ok; + +action(eval, Node, [Expr], _Opts, _Inform) -> + case erl_scan:string(Expr) of + {ok, Scanned, _} -> + case erl_parse:parse_exprs(Scanned) of + {ok, Parsed} -> + {value, Value, _} = unsafe_rpc( + Node, erl_eval, exprs, [Parsed, []]), + io:format("~p~n", [Value]), + ok; + {error, E} -> + {error_string, format_parse_error(E)} + end; + {error, E, _} -> + {error_string, format_parse_error(E)} + end. + +%%---------------------------------------------------------------------------- + +wait_for_application(Node, PidFile, Application, Inform) -> + Pid = read_pid_file(PidFile, true), + Inform("pid is ~s", [Pid]), + wait_for_application(Node, Pid, Application). + +wait_for_application(Node, Pid, Application) -> + while_process_is_alive(Node, Pid, + fun() -> rabbit_nodes:is_running(Node, Application) end). + +wait_for_startup(Node, Pid) -> + while_process_is_alive(Node, Pid, + fun() -> rpc:call(Node, rabbit, await_startup, []) =:= ok end). + +while_process_is_alive(Node, Pid, Activity) -> + case process_up(Pid) of + true -> case Activity() of + true -> ok; + Other -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), + while_process_is_alive(Node, Pid, Activity) + end; + false -> {error, process_not_running} + end. + +wait_for_process_death(Pid) -> + case process_up(Pid) of + true -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), + wait_for_process_death(Pid); + false -> ok + end. + +read_pid_file(PidFile, Wait) -> + case {file:read_file(PidFile), Wait} of + {{ok, Bin}, _} -> + S = string:strip(binary_to_list(Bin), right, $\n), + try list_to_integer(S) + catch error:badarg -> + exit({error, {garbage_in_pid_file, PidFile}}) + end, + S; + {{error, enoent}, true} -> + timer:sleep(?EXTERNAL_CHECK_INTERVAL), + read_pid_file(PidFile, Wait); + {{error, _} = E, _} -> + exit({error, {could_not_read_pid, E}}) + end. + +% Test using some OS clunkiness since we shouldn't trust +% rpc:call(os, getpid, []) at this point +process_up(Pid) -> + with_os([{unix, fun () -> + system("ps -p " ++ Pid + ++ " >/dev/null 2>&1") =:= 0 + end}, + {win32, fun () -> + Res = os:cmd("tasklist /nh /fi \"pid eq " ++ + Pid ++ "\" 2>&1"), + case re:run(Res, "erl\\.exe", [{capture, none}]) of + match -> true; + _ -> false + end + end}]). + +with_os(Handlers) -> + {OsFamily, _} = os:type(), + case proplists:get_value(OsFamily, Handlers) of + undefined -> throw({unsupported_os, OsFamily}); + Handler -> Handler() + end. + +% Like system(3) +system(Cmd) -> + ShCmd = "sh -c '" ++ escape_quotes(Cmd) ++ "'", + Port = erlang:open_port({spawn, ShCmd}, [exit_status,nouse_stdio]), + receive {Port, {exit_status, Status}} -> Status end. + +% Escape the quotes in a shell command so that it can be used in "sh -c 'cmd'" +escape_quotes(Cmd) -> + lists:flatten(lists:map(fun ($') -> "'\\''"; (Ch) -> Ch end, Cmd)). + +format_parse_error({_Line, Mod, Err}) -> + lists:flatten(Mod:format_error(Err)). + +%%---------------------------------------------------------------------------- + +default_if_empty(List, Default) when is_list(List) -> + if List == [] -> Default; + true -> [list_to_atom(X) || X <- List] + end. + +display_info_list(Results, InfoItemKeys) when is_list(Results) -> + lists:foreach( + fun (Result) -> display_row( + [format_info_item(proplists:get_value(X, Result)) || + X <- InfoItemKeys]) + end, Results), + ok; +display_info_list(Other, _) -> + Other. + +display_row(Row) -> + io:fwrite(string:join(Row, "\t")), + io:nl(). + +-define(IS_U8(X), (X >= 0 andalso X =< 255)). +-define(IS_U16(X), (X >= 0 andalso X =< 65535)). + +format_info_item(#resource{name = Name}) -> + escape(Name); +format_info_item({N1, N2, N3, N4} = Value) when + ?IS_U8(N1), ?IS_U8(N2), ?IS_U8(N3), ?IS_U8(N4) -> + rabbit_misc:ntoa(Value); +format_info_item({K1, K2, K3, K4, K5, K6, K7, K8} = Value) when + ?IS_U16(K1), ?IS_U16(K2), ?IS_U16(K3), ?IS_U16(K4), + ?IS_U16(K5), ?IS_U16(K6), ?IS_U16(K7), ?IS_U16(K8) -> + rabbit_misc:ntoa(Value); +format_info_item(Value) when is_pid(Value) -> + rabbit_misc:pid_to_string(Value); +format_info_item(Value) when is_binary(Value) -> + escape(Value); +format_info_item(Value) when is_atom(Value) -> + escape(atom_to_list(Value)); +format_info_item([{TableEntryKey, TableEntryType, _TableEntryValue} | _] = + Value) when is_binary(TableEntryKey) andalso + is_atom(TableEntryType) -> + io_lib:format("~1000000000000p", [prettify_amqp_table(Value)]); +format_info_item([T | _] = Value) + when is_tuple(T) orelse is_pid(T) orelse is_binary(T) orelse is_atom(T) orelse + is_list(T) -> + "[" ++ + lists:nthtail(2, lists:append( + [", " ++ format_info_item(E) || E <- Value])) ++ "]"; +format_info_item(Value) -> + io_lib:format("~w", [Value]). + +display_call_result(Node, MFA) -> + case call(Node, MFA) of + {badrpc, _} = Res -> throw(Res); + Res -> io:format("~p~n", [Res]), + ok + end. + +unsafe_rpc(Node, Mod, Fun, Args) -> + case rpc_call(Node, Mod, Fun, Args) of + {badrpc, _} = Res -> throw(Res); + Normal -> Normal + end. + +call(Node, {Mod, Fun, Args}) -> + rpc_call(Node, Mod, Fun, lists:map(fun list_to_binary/1, Args)). + +rpc_call(Node, Mod, Fun, Args) -> + rpc:call(Node, Mod, Fun, Args, ?RPC_TIMEOUT). + +%% escape does C-style backslash escaping of non-printable ASCII +%% characters. We don't escape characters above 127, since they may +%% form part of UTF-8 strings. + +escape(Atom) when is_atom(Atom) -> escape(atom_to_list(Atom)); +escape(Bin) when is_binary(Bin) -> escape(binary_to_list(Bin)); +escape(L) when is_list(L) -> escape_char(lists:reverse(L), []). + +escape_char([$\\ | T], Acc) -> + escape_char(T, [$\\, $\\ | Acc]); +escape_char([X | T], Acc) when X >= 32, X /= 127 -> + escape_char(T, [X | Acc]); +escape_char([X | T], Acc) -> + escape_char(T, [$\\, $0 + (X bsr 6), $0 + (X band 8#070 bsr 3), + $0 + (X band 7) | Acc]); +escape_char([], Acc) -> + Acc. + +prettify_amqp_table(Table) -> + [{escape(K), prettify_typed_amqp_value(T, V)} || {K, T, V} <- Table]. + +prettify_typed_amqp_value(longstr, Value) -> escape(Value); +prettify_typed_amqp_value(table, Value) -> prettify_amqp_table(Value); +prettify_typed_amqp_value(array, Value) -> [prettify_typed_amqp_value(T, V) || + {T, V} <- Value]; +prettify_typed_amqp_value(_Type, Value) -> Value. diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 96b5fa38..c73a51c9 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1573,7 +1573,7 @@ control_action(Command, Args, NewOpts) -> expand_options(default_options(), NewOpts)). control_action(Command, Node, Args, Opts) -> - case catch rabbit_control:action( + case catch rabbit_control_main:action( Command, Node, Args, Opts, fun (Format, Args1) -> io:format(Format ++ " ...~n", Args1) -- cgit v1.2.1 From 6ee103b0aac819e7c3dc7da7f974c330e942a47b Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 13:48:29 +0100 Subject: rationalise rabbit_misc:terminate/1/2 with rabbit_misc:quit/1 --- src/rabbit_misc.erl | 33 +++++++++++++++------------------ src/rabbit_plugins.erl | 4 ++-- src/rabbit_prelaunch.erl | 6 +++--- 3 files changed, 20 insertions(+), 23 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index cc1417e9..ebef3e65 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -19,7 +19,7 @@ -include("rabbit_framing.hrl"). -export([method_record_type/1, polite_pause/0, polite_pause/1]). --export([die/1, frame_error/2, amqp_error/4, terminate/1, terminate/2, +-export([die/1, frame_error/2, amqp_error/4, quit/1, quit/2, protocol_error/3, protocol_error/4, protocol_error/1]). -export([not_found/1, assert_args_equivalence/4]). -export([dirty_read/1]). @@ -58,7 +58,6 @@ -export([format_message_queue/2]). -export([append_rpc_all_nodes/4]). -export([multi_call/2]). --export([quit/1]). -export([os_cmd/1]). -export([gb_sets_difference/2]). @@ -87,8 +86,8 @@ -spec(die/1 :: (rabbit_framing:amqp_exception()) -> channel_or_connection_exit()). --spec(terminate/1 :: (integer()) -> any()). --spec(terminate/2 :: (string(), integer()) -> any()). +-spec(quit/1 :: (integer()) -> any()). +-spec(quit/2 :: (string(), [term()]) -> any()). -spec(frame_error/2 :: (rabbit_framing:amqp_method_name(), binary()) -> rabbit_types:connection_exit()). @@ -207,7 +206,6 @@ -spec(append_rpc_all_nodes/4 :: ([node()], atom(), atom(), [any()]) -> [any()]). -spec(multi_call/2 :: ([pid()], any()) -> {[{pid(), any()}], [{pid(), any()}]}). --spec(quit/1 :: (integer() | string()) -> no_return()). -spec(os_cmd/1 :: (string()) -> string()). -spec(gb_sets_difference/2 :: (gb_set(), gb_set()) -> gb_set()). @@ -388,14 +386,20 @@ report_coverage_percentage(File, Cov, NotCov, Mod) -> confirm_to_sender(Pid, MsgSeqNos) -> gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). -terminate(Fmt, Args) -> +%% +%% @doc Halts the emulator after printing out an error message io-formatted with +%% the supplied arguments. The exit status of the beam process will be set to 1. +%% +quit(Fmt, Args) -> io:format("ERROR: " ++ Fmt ++ "~n", Args), - terminate(1). + quit(1). -%% like quit/1, uses a slower shutdown on windows -%% (required to flush stdout), however terminate/1 also blocks -%% indefinitely until the flush has completed. -terminate(Status) -> +%% +%% @doc Halts the emulator returning the given status code to the os. +%% On Windows this function will block indefinitely so as to give the io +%% subsystem time to flush stdout completely. +%% +quit(Status) -> case os:type() of {unix, _} -> halt(Status); {win32, _} -> init:stop(Status), @@ -898,13 +902,6 @@ receive_multi_call([{Mref, Pid} | MonitorPids], Good, Bad) -> receive_multi_call(MonitorPids, Good, [{Pid, Reason} | Bad]) end. -%% the slower shutdown on windows required to flush stdout -quit(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status) - end. - os_cmd(Command) -> Exec = hd(string:tokens(Command, " ")), case os:find_executable(Exec) of diff --git a/src/rabbit_plugins.erl b/src/rabbit_plugins.erl index 06773cdb..aa60cf2c 100644 --- a/src/rabbit_plugins.erl +++ b/src/rabbit_plugins.erl @@ -122,12 +122,12 @@ prepare_plugins(EnabledPluginsFile, PluginsDistDir, DestDir) -> %% Eliminate the contents of the destination directory case delete_recursively(DestDir) of ok -> ok; - {error, E} -> rabbit_misc:terminate("Could not delete dir ~s (~p)", + {error, E} -> rabbit_misc:quit("Could not delete dir ~s (~p)", [DestDir, E]) end, case filelib:ensure_dir(DestDir ++ "/") of ok -> ok; - {error, E2} -> rabbit_misc:terminate("Could not create dir ~s (~p)", + {error, E2} -> rabbit_misc:quit("Could not create dir ~s (~p)", [DestDir, E2]) end, diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl index d58f54b9..5aa01d18 100644 --- a/src/rabbit_prelaunch.erl +++ b/src/rabbit_prelaunch.erl @@ -39,7 +39,7 @@ start() -> [NodeStr] = init:get_plain_arguments(), ok = duplicate_node_check(NodeStr), - rabbit_misc:terminate(0), + rabbit_misc:quit(0), ok. stop() -> @@ -61,11 +61,11 @@ duplicate_node_check(NodeStr) -> "already running on ~p~n", [NodeName, NodeHost]), io:format(rabbit_nodes:diagnostics([Node]) ++ "~n"), - rabbit_misc:terminate(?ERROR_CODE); + rabbit_misc:quit(?ERROR_CODE); false -> ok end; {error, EpmdReason} -> - rabbit_misc:terminate("epmd error for host ~p: ~p (~s)~n", + rabbit_misc:quit("epmd error for host ~p: ~p (~s)~n", [NodeHost, EpmdReason, case EpmdReason of address -> "unable to establish tcp connection"; -- cgit v1.2.1 From 12d26cfe6ff78916bf671f6bffca37109a3f1b25 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 21 May 2012 14:10:09 +0100 Subject: fix variable handling in rabbitmq-server preventing background node startup from working --- scripts/rabbitmq-server | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index ba18766c..05998dd3 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -58,7 +58,8 @@ DEFAULT_NODE_PORT=5672 ##--- End of overridden variables RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' +[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT=" -noinput" +[ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT="$RABBITMQ_START_RABBIT -s rabbit boot " case "$(uname -s)" in CYGWIN*) # we make no attempt to record the cygwin pid; rabbitmqctl wait -- cgit v1.2.1 From dbfedb6c2061daa2451eb55fcb7545a96c58c38e Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 13:48:29 +0100 Subject: rationalise rabbit_misc:terminate/1/2 with rabbit_misc:quit/1 --- src/rabbit_misc.erl | 33 +++++++++++++++------------------ src/rabbit_plugins.erl | 4 ++-- src/rabbit_prelaunch.erl | 6 +++--- 3 files changed, 20 insertions(+), 23 deletions(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index cc1417e9..ebef3e65 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -19,7 +19,7 @@ -include("rabbit_framing.hrl"). -export([method_record_type/1, polite_pause/0, polite_pause/1]). --export([die/1, frame_error/2, amqp_error/4, terminate/1, terminate/2, +-export([die/1, frame_error/2, amqp_error/4, quit/1, quit/2, protocol_error/3, protocol_error/4, protocol_error/1]). -export([not_found/1, assert_args_equivalence/4]). -export([dirty_read/1]). @@ -58,7 +58,6 @@ -export([format_message_queue/2]). -export([append_rpc_all_nodes/4]). -export([multi_call/2]). --export([quit/1]). -export([os_cmd/1]). -export([gb_sets_difference/2]). @@ -87,8 +86,8 @@ -spec(die/1 :: (rabbit_framing:amqp_exception()) -> channel_or_connection_exit()). --spec(terminate/1 :: (integer()) -> any()). --spec(terminate/2 :: (string(), integer()) -> any()). +-spec(quit/1 :: (integer()) -> any()). +-spec(quit/2 :: (string(), [term()]) -> any()). -spec(frame_error/2 :: (rabbit_framing:amqp_method_name(), binary()) -> rabbit_types:connection_exit()). @@ -207,7 +206,6 @@ -spec(append_rpc_all_nodes/4 :: ([node()], atom(), atom(), [any()]) -> [any()]). -spec(multi_call/2 :: ([pid()], any()) -> {[{pid(), any()}], [{pid(), any()}]}). --spec(quit/1 :: (integer() | string()) -> no_return()). -spec(os_cmd/1 :: (string()) -> string()). -spec(gb_sets_difference/2 :: (gb_set(), gb_set()) -> gb_set()). @@ -388,14 +386,20 @@ report_coverage_percentage(File, Cov, NotCov, Mod) -> confirm_to_sender(Pid, MsgSeqNos) -> gen_server2:cast(Pid, {confirm, MsgSeqNos, self()}). -terminate(Fmt, Args) -> +%% +%% @doc Halts the emulator after printing out an error message io-formatted with +%% the supplied arguments. The exit status of the beam process will be set to 1. +%% +quit(Fmt, Args) -> io:format("ERROR: " ++ Fmt ++ "~n", Args), - terminate(1). + quit(1). -%% like quit/1, uses a slower shutdown on windows -%% (required to flush stdout), however terminate/1 also blocks -%% indefinitely until the flush has completed. -terminate(Status) -> +%% +%% @doc Halts the emulator returning the given status code to the os. +%% On Windows this function will block indefinitely so as to give the io +%% subsystem time to flush stdout completely. +%% +quit(Status) -> case os:type() of {unix, _} -> halt(Status); {win32, _} -> init:stop(Status), @@ -898,13 +902,6 @@ receive_multi_call([{Mref, Pid} | MonitorPids], Good, Bad) -> receive_multi_call(MonitorPids, Good, [{Pid, Reason} | Bad]) end. -%% the slower shutdown on windows required to flush stdout -quit(Status) -> - case os:type() of - {unix, _} -> halt(Status); - {win32, _} -> init:stop(Status) - end. - os_cmd(Command) -> Exec = hd(string:tokens(Command, " ")), case os:find_executable(Exec) of diff --git a/src/rabbit_plugins.erl b/src/rabbit_plugins.erl index 06773cdb..aa60cf2c 100644 --- a/src/rabbit_plugins.erl +++ b/src/rabbit_plugins.erl @@ -122,12 +122,12 @@ prepare_plugins(EnabledPluginsFile, PluginsDistDir, DestDir) -> %% Eliminate the contents of the destination directory case delete_recursively(DestDir) of ok -> ok; - {error, E} -> rabbit_misc:terminate("Could not delete dir ~s (~p)", + {error, E} -> rabbit_misc:quit("Could not delete dir ~s (~p)", [DestDir, E]) end, case filelib:ensure_dir(DestDir ++ "/") of ok -> ok; - {error, E2} -> rabbit_misc:terminate("Could not create dir ~s (~p)", + {error, E2} -> rabbit_misc:quit("Could not create dir ~s (~p)", [DestDir, E2]) end, diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl index d58f54b9..5aa01d18 100644 --- a/src/rabbit_prelaunch.erl +++ b/src/rabbit_prelaunch.erl @@ -39,7 +39,7 @@ start() -> [NodeStr] = init:get_plain_arguments(), ok = duplicate_node_check(NodeStr), - rabbit_misc:terminate(0), + rabbit_misc:quit(0), ok. stop() -> @@ -61,11 +61,11 @@ duplicate_node_check(NodeStr) -> "already running on ~p~n", [NodeName, NodeHost]), io:format(rabbit_nodes:diagnostics([Node]) ++ "~n"), - rabbit_misc:terminate(?ERROR_CODE); + rabbit_misc:quit(?ERROR_CODE); false -> ok end; {error, EpmdReason} -> - rabbit_misc:terminate("epmd error for host ~p: ~p (~s)~n", + rabbit_misc:quit("epmd error for host ~p: ~p (~s)~n", [NodeHost, EpmdReason, case EpmdReason of address -> "unable to establish tcp connection"; -- cgit v1.2.1 From 91e94bb9a880a33f78de1983670f6f8541902be5 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 13:59:21 +0100 Subject: cosmetic --- scripts/rabbitmqctl.bat | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index 55a3d8b2..9f549f1e 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -34,7 +34,7 @@ if "!RABBITMQ_NODENAME!"=="" ( if not exist "!ERLANG_HOME!\bin\erl.exe" ( echo. echo ****************************** - echo ERLANG_HOME not set correctly. + echo ERLANG_HOME not set correctly. echo ****************************** echo. echo Please either set ERLANG_HOME to point to your Erlang installation or place the -- cgit v1.2.1 From d8d58a131dc37b6951636f65e9a216e6e641afa7 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 13:59:21 +0100 Subject: cosmetic --- scripts/rabbitmqctl.bat | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index 55a3d8b2..9f549f1e 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -34,7 +34,7 @@ if "!RABBITMQ_NODENAME!"=="" ( if not exist "!ERLANG_HOME!\bin\erl.exe" ( echo. echo ****************************** - echo ERLANG_HOME not set correctly. + echo ERLANG_HOME not set correctly. echo ****************************** echo. echo Please either set ERLANG_HOME to point to your Erlang installation or place the -- cgit v1.2.1 From 15c31735872e0124ce4d539d82ec16da676e8a3a Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 14:46:11 +0100 Subject: revert to expected RABBITMQ_NODE_ONLY behaviour on unix --- scripts/rabbitmq-server | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index ba18766c..49c57184 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -60,6 +60,9 @@ DEFAULT_NODE_PORT=5672 RABBITMQ_START_RABBIT= [ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' +RABBITMQ_START_RABBIT= +[ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT="$RABBITMQ_START_RABBIT -s rabbit boot" + case "$(uname -s)" in CYGWIN*) # we make no attempt to record the cygwin pid; rabbitmqctl wait # will not be able to make sense of it anyway @@ -97,7 +100,6 @@ exec erl \ ${RABBITMQ_START_RABBIT} \ -sname ${RABBITMQ_NODENAME} \ -boot start_sasl \ - -s rabbit boot \ ${RABBITMQ_CONFIG_ARG} \ +W w \ ${RABBITMQ_SERVER_ERL_ARGS} \ -- cgit v1.2.1 From e066b0593edb53505f371769672fd6708dad01c7 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 14:46:11 +0100 Subject: revert to expected RABBITMQ_NODE_ONLY behaviour on unix --- scripts/rabbitmq-server | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 05998dd3..9d8710af 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -61,6 +61,9 @@ RABBITMQ_START_RABBIT= [ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT=" -noinput" [ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT="$RABBITMQ_START_RABBIT -s rabbit boot " +RABBITMQ_START_RABBIT= +[ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT="$RABBITMQ_START_RABBIT -s rabbit boot" + case "$(uname -s)" in CYGWIN*) # we make no attempt to record the cygwin pid; rabbitmqctl wait # will not be able to make sense of it anyway @@ -98,7 +101,6 @@ exec erl \ ${RABBITMQ_START_RABBIT} \ -sname ${RABBITMQ_NODENAME} \ -boot start_sasl \ - -s rabbit boot \ ${RABBITMQ_CONFIG_ARG} \ +W w \ ${RABBITMQ_SERVER_ERL_ARGS} \ -- cgit v1.2.1 From 582d964fc2286d941365009bad0754d157573397 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 15:38:21 +0100 Subject: on windows, die in the correct manner when node name is already in use --- scripts/rabbitmq-server.bat | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 58f085af..09d4661f 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,13 +89,15 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -if not "!ERLANG_HOME!\bin\erl.exe" ^ +"!ERLANG_HOME!\bin\erl.exe" ^ -pa "!RABBITMQ_EBIN_ROOT!" ^ -noinput -hidden ^ -s rabbit_prelaunch ^ -sname rabbitmqprelaunch!RANDOM! ^ - -extra "!RABBITMQ_NODENAME!" ( - exit /B + -extra "!RABBITMQ_NODENAME!" + +if ERRORLEVEL 1 ( + exit /B 1 ) set RABBITMQ_EBIN_PATH="-pa !RABBITMQ_EBIN_ROOT!" -- cgit v1.2.1 From bee5cf3965fb10fc74fc597971d80beec11338fe Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 15:38:21 +0100 Subject: on windows, die in the correct manner when node name is already in use --- scripts/rabbitmq-server.bat | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 58f085af..09d4661f 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -89,13 +89,15 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -if not "!ERLANG_HOME!\bin\erl.exe" ^ +"!ERLANG_HOME!\bin\erl.exe" ^ -pa "!RABBITMQ_EBIN_ROOT!" ^ -noinput -hidden ^ -s rabbit_prelaunch ^ -sname rabbitmqprelaunch!RANDOM! ^ - -extra "!RABBITMQ_NODENAME!" ( - exit /B + -extra "!RABBITMQ_NODENAME!" + +if ERRORLEVEL 1 ( + exit /B 1 ) set RABBITMQ_EBIN_PATH="-pa !RABBITMQ_EBIN_ROOT!" -- cgit v1.2.1 From 147a2c249e22af8f668718246abd2c9112e03abb Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 16:26:27 +0100 Subject: be mindful of windows line endings whilst parsing pid files --- src/rabbit_control_main.erl | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/rabbit_control_main.erl b/src/rabbit_control_main.erl index b1c120bd..2878e8e2 100644 --- a/src/rabbit_control_main.erl +++ b/src/rabbit_control_main.erl @@ -405,6 +405,8 @@ wait_for_application(Node, PidFile, Application, Inform) -> Inform("pid is ~s", [Pid]), wait_for_application(Node, Pid, Application). +wait_for_application(Node, Pid, rabbit) -> + wait_for_startup(Node, Pid); wait_for_application(Node, Pid, Application) -> while_process_is_alive(Node, Pid, fun() -> rabbit_nodes:is_running(Node, Application) end). @@ -433,7 +435,7 @@ wait_for_process_death(Pid) -> read_pid_file(PidFile, Wait) -> case {file:read_file(PidFile), Wait} of {{ok, Bin}, _} -> - S = string:strip(binary_to_list(Bin), right, $\n), + S = re:replace(Bin, "\\s", "", [global, {return, list}]), try list_to_integer(S) catch error:badarg -> exit({error, {garbage_in_pid_file, PidFile}}) -- cgit v1.2.1 From 451ab0321da6b33a9d88f9f4f70db73e45e81603 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 16:26:27 +0100 Subject: be mindful of windows line endings whilst parsing pid files --- src/rabbit_control_main.erl | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/rabbit_control_main.erl b/src/rabbit_control_main.erl index b1c120bd..2878e8e2 100644 --- a/src/rabbit_control_main.erl +++ b/src/rabbit_control_main.erl @@ -405,6 +405,8 @@ wait_for_application(Node, PidFile, Application, Inform) -> Inform("pid is ~s", [Pid]), wait_for_application(Node, Pid, Application). +wait_for_application(Node, Pid, rabbit) -> + wait_for_startup(Node, Pid); wait_for_application(Node, Pid, Application) -> while_process_is_alive(Node, Pid, fun() -> rabbit_nodes:is_running(Node, Application) end). @@ -433,7 +435,7 @@ wait_for_process_death(Pid) -> read_pid_file(PidFile, Wait) -> case {file:read_file(PidFile), Wait} of {{ok, Bin}, _} -> - S = string:strip(binary_to_list(Bin), right, $\n), + S = re:replace(Bin, "\\s", "", [global, {return, list}]), try list_to_integer(S) catch error:badarg -> exit({error, {garbage_in_pid_file, PidFile}}) -- cgit v1.2.1 From 791f9cfbc556f748a6a4aad1a7f5dfa23f4a834d Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 16:49:11 +0100 Subject: remove message about re-installing windows service after plugin changes --- src/rabbit_control_main.erl | 2 +- src/rabbit_plugins_main.erl | 11 +---------- 2 files changed, 2 insertions(+), 11 deletions(-) diff --git a/src/rabbit_control_main.erl b/src/rabbit_control_main.erl index 2878e8e2..d33195ad 100644 --- a/src/rabbit_control_main.erl +++ b/src/rabbit_control_main.erl @@ -419,7 +419,7 @@ while_process_is_alive(Node, Pid, Activity) -> case process_up(Pid) of true -> case Activity() of true -> ok; - Other -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), + _Other -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), while_process_is_alive(Node, Pid, Activity) end; false -> {error, process_not_running} diff --git a/src/rabbit_plugins_main.erl b/src/rabbit_plugins_main.erl index a27ad986..0500d2c1 100644 --- a/src/rabbit_plugins_main.erl +++ b/src/rabbit_plugins_main.erl @@ -258,14 +258,5 @@ maybe_warn_mochiweb(Enabled) -> report_change() -> io:format("Plugin configuration has changed. " - "Restart RabbitMQ for changes to take effect.~n"), - case os:type() of - {win32, _OsName} -> - io:format("If you have RabbitMQ running as a service then you must" - " reinstall by running~n rabbitmq-service.bat stop~n" - " rabbitmq-service.bat install~n" - " rabbitmq-service.bat start~n~n"); - _ -> - ok - end. + "Restart RabbitMQ for changes to take effect.~n"). -- cgit v1.2.1 From a851c42166e61659f5f5aaabba063fc3982899ba Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 16 May 2012 16:49:11 +0100 Subject: remove message about re-installing windows service after plugin changes --- src/rabbit_control_main.erl | 2 +- src/rabbit_plugins_main.erl | 11 +---------- 2 files changed, 2 insertions(+), 11 deletions(-) diff --git a/src/rabbit_control_main.erl b/src/rabbit_control_main.erl index 2878e8e2..d33195ad 100644 --- a/src/rabbit_control_main.erl +++ b/src/rabbit_control_main.erl @@ -419,7 +419,7 @@ while_process_is_alive(Node, Pid, Activity) -> case process_up(Pid) of true -> case Activity() of true -> ok; - Other -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), + _Other -> timer:sleep(?EXTERNAL_CHECK_INTERVAL), while_process_is_alive(Node, Pid, Activity) end; false -> {error, process_not_running} diff --git a/src/rabbit_plugins_main.erl b/src/rabbit_plugins_main.erl index a27ad986..0500d2c1 100644 --- a/src/rabbit_plugins_main.erl +++ b/src/rabbit_plugins_main.erl @@ -258,14 +258,5 @@ maybe_warn_mochiweb(Enabled) -> report_change() -> io:format("Plugin configuration has changed. " - "Restart RabbitMQ for changes to take effect.~n"), - case os:type() of - {win32, _OsName} -> - io:format("If you have RabbitMQ running as a service then you must" - " reinstall by running~n rabbitmq-service.bat stop~n" - " rabbitmq-service.bat install~n" - " rabbitmq-service.bat start~n~n"); - _ -> - ok - end. + "Restart RabbitMQ for changes to take effect.~n"). -- cgit v1.2.1 From 3adfd81a11adbca4922452ec4dff9fd806145fce Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Fri, 18 May 2012 10:10:11 +0100 Subject: fix variable handling in rabbitmq-server preventing background node startup from working --- scripts/rabbitmq-server | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 49c57184..81a5e572 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -58,10 +58,8 @@ DEFAULT_NODE_PORT=5672 ##--- End of overridden variables RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT='-noinput' - -RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT="$RABBITMQ_START_RABBIT -s rabbit boot" +[ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT=" -noinput" +[ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT="$RABBITMQ_START_RABBIT -s rabbit boot " case "$(uname -s)" in CYGWIN*) # we make no attempt to record the cygwin pid; rabbitmqctl wait -- cgit v1.2.1 From 36491dd0e918c31b47791a112c5f796a918dbda5 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 18 May 2012 16:58:03 +0100 Subject: It's really misleading to print "-- plugins running" when there are no plugins running. --- src/rabbit.erl | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/rabbit.erl b/src/rabbit.erl index 31296058..ab4c8d17 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -639,6 +639,8 @@ force_event_refresh() -> %%--------------------------------------------------------------------------- %% misc +print_plugin_info([]) -> + ok; print_plugin_info(Plugins) -> io:format("~n-- plugins running~n"), [print_plugin_info(AppName, element(2, application:get_key(AppName, vsn))) -- cgit v1.2.1 From 99a5581a73a12c7f79107d9930fa384a0fa1bd5a Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 21 May 2012 14:13:48 +0100 Subject: fix variable handling in rabbitmq-server preventing background node startup from working (rebase foo) --- scripts/rabbitmq-server | 3 --- 1 file changed, 3 deletions(-) diff --git a/scripts/rabbitmq-server b/scripts/rabbitmq-server index 9d8710af..81a5e572 100755 --- a/scripts/rabbitmq-server +++ b/scripts/rabbitmq-server @@ -61,9 +61,6 @@ RABBITMQ_START_RABBIT= [ "x" = "x$RABBITMQ_ALLOW_INPUT" ] && RABBITMQ_START_RABBIT=" -noinput" [ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT="$RABBITMQ_START_RABBIT -s rabbit boot " -RABBITMQ_START_RABBIT= -[ "x" = "x$RABBITMQ_NODE_ONLY" ] && RABBITMQ_START_RABBIT="$RABBITMQ_START_RABBIT -s rabbit boot" - case "$(uname -s)" in CYGWIN*) # we make no attempt to record the cygwin pid; rabbitmqctl wait # will not be able to make sense of it anyway -- cgit v1.2.1 From b03bd77e3421a08777b3d101670e467f1611ac24 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 25 May 2012 13:39:08 +0100 Subject: Update code doc for catchup being sent from TXN --- src/gm.erl | 39 ++++++++++++++++++--------------------- 1 file changed, 18 insertions(+), 21 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index e684685a..815fb1b2 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -566,27 +566,24 @@ handle_call({add_on_right, NewMember}, _From, members_state = MembersState, module = Module, callback_args = Args }) -> - %% Note: the fun below executes in an Mnesia transaction and has - %% side effects. This is unfortunately necessary, but means that - %% it's possible for spurious catchup messages to be generated. - %% - %% It's necessary because of the following scenario: - %% - %% If we have A -> B -> C, B publishes a message which starts - %% making its way around. Now B' joins, adding itself to mnesia - %% leading to A -> B -> B' -> C. At this point, B dies, _before_ - %% it sends to B' the catchup message. According to mnesia, B' is - %% responsible for B's msgs, but B' will actually receive the - %% catchup from A, thus having the least of all information about - %% the messages from B - in particular, it'll crash when it - %% receives the msg B sent before dying as it's not a msg it's - %% seen before (which should be impossible). - %% - %% So we have to send the catchup message in the tx. If we die - %% after sending the catchup but before the tx commits, the - %% catchup will be ignored as coming from the wrong Left. But txs - %% can retry, so we have to deal with spurious catchup - %% messages. See comment in handle_msg({catchup, ...}). + +%% The fun below will run in a mnesia transactiond that may retry, causing +%% multiple catchup messages to be sent as a side-effect. Catchup messages +%% with an old view version will be ignored in handle_msg({catchup, ...}). +%% +%% Joining members must receive a catchup before any other activity updates, +%% to bring their members_state up-to-date with their left neighbour and allow +%% them to take over all the responsibilities of their left neighbour. +%% +%% TODO: It is still possible for the transaction in +%% record_new_member_in_group to commit before +%% the catchup message is sent if the node fails +%% in a particular way. This must be prevented +%% or accomodated, as the GM protocol currently +%% assumes that the transaction will not commit +%% without a catchup message being received by +%% the joining member. + Group = record_new_member_in_group( GroupName, Self, NewMember, fun (Group1) -> -- cgit v1.2.1 From 6cef211bc9643fc0133ac73e84f9f33145f73698 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 25 May 2012 13:41:25 +0100 Subject: Indent comment --- src/gm.erl | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index 815fb1b2..a9ddf708 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -567,22 +567,22 @@ handle_call({add_on_right, NewMember}, _From, module = Module, callback_args = Args }) -> -%% The fun below will run in a mnesia transactiond that may retry, causing -%% multiple catchup messages to be sent as a side-effect. Catchup messages -%% with an old view version will be ignored in handle_msg({catchup, ...}). -%% -%% Joining members must receive a catchup before any other activity updates, -%% to bring their members_state up-to-date with their left neighbour and allow -%% them to take over all the responsibilities of their left neighbour. -%% -%% TODO: It is still possible for the transaction in -%% record_new_member_in_group to commit before -%% the catchup message is sent if the node fails -%% in a particular way. This must be prevented -%% or accomodated, as the GM protocol currently -%% assumes that the transaction will not commit -%% without a catchup message being received by -%% the joining member. + %% The fun below will run in a mnesia transactiond that may retry, causing + %% multiple catchup messages to be sent as a side-effect. Catchup messages + %% with an old view version will be ignored in handle_msg({catchup, ...}). + %% + %% Joining members must receive a catchup before any other activity updates, + %% to bring their members_state up-to-date with their left neighbour and + %% allow them to take over all the responsibilities of their left neighbour. + %% + %% TODO: It is still possible for the transaction in + %% record_new_member_in_group to commit before + %% the catchup message is sent if the node fails + %% in a particular way. This must be prevented + %% or accomodated, as the GM protocol currently + %% assumes that the transaction will not commit + %% without a catchup message being received by + %% the joining member. Group = record_new_member_in_group( GroupName, Self, NewMember, -- cgit v1.2.1 From c9edcc8a9f35acee3adcd97702df3b05214ca85a Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 25 May 2012 15:40:35 +0100 Subject: Application of M-q; some english, and spell-check --- src/gm.erl | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index a88d9d3e..b2ec3081 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -576,22 +576,23 @@ handle_call({add_on_right, NewMember}, _From, module = Module, callback_args = Args }) -> - %% The fun below will run in a mnesia transactiond that may retry, causing - %% multiple catchup messages to be sent as a side-effect. Catchup messages - %% with an old view version will be ignored in handle_msg({catchup, ...}). + %% The fun below will run in a mnesia transaction that may retry, + %% causing multiple catchup messages to be sent as a + %% side-effect. Catchup messages with an old view version will be + %% ignored in handle_msg({catchup, ...}). %% - %% Joining members must receive a catchup before any other activity updates, - %% to bring their members_state up-to-date with their left neighbour and - %% allow them to take over all the responsibilities of their left neighbour. + %% Joining members must receive a catchup before any other + %% activity updates, to bring their members_state up-to-date with + %% their left neighbour and allow them to take over all the + %% responsibilities of their left neighbour. %% %% TODO: It is still possible for the transaction in - %% record_new_member_in_group to commit before - %% the catchup message is sent if the node fails - %% in a particular way. This must be prevented - %% or accomodated, as the GM protocol currently - %% assumes that the transaction will not commit - %% without a catchup message being received by - %% the joining member. + %% record_new_member_in_group to commit before the catchup + %% message is sent if the node fails in a particular + %% way. This must be prevented or accommodated, as the GM + %% protocol currently assumes that the transaction will not + %% commit without a catchup message being received by the + %% joining member. {MembersState1, Group} = record_new_member_in_group( -- cgit v1.2.1 From 6338e97da160f27257fc38955e448146033f5ccc Mon Sep 17 00:00:00 2001 From: Matthew Sackman Date: Fri, 25 May 2012 15:55:02 +0100 Subject: cosmetic, plus add assertion --- src/gm.erl | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index b2ec3081..7d24132f 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -737,15 +737,17 @@ handle_msg({catchup, Left, Ver, MembersStateLeft}, view = View, members_state = undefined }) -> case view_version(View) of - Ver -> ok = send_right(Right, View, - {catchup, Self, Ver, MembersStateLeft}), - MembersStateLeft1 = build_members_state(MembersStateLeft), - {ok, State #state { members_state = MembersStateLeft1 }}; - %% ignore catchup with out-of-date view, see - %% handle_call({add_on_right, ...). In this case we *know* - %% that there will be another catchup message along in a - %% minute (this one was a side effect of a retried tx). - _ -> {ok, State} + Ver -> ok = send_right(Right, View, + {catchup, Self, Ver, MembersStateLeft}), + MembersStateLeft1 = build_members_state(MembersStateLeft), + {ok, State #state { members_state = MembersStateLeft1 }}; + MyVer -> %% ignore catchup with out-of-date view, see + %% handle_call({add_on_right, ...). In this case we + %% *know* that there will be another catchup message + %% along in a minute (this one was a side effect of a + %% retried tx). + true = MyVer > Ver, %% ASSERTION + {ok, State} end; handle_msg({catchup, Left, _Ver, MembersStateLeft}, -- cgit v1.2.1 -- cgit v1.2.1 From e44a76514b3fca0107bcfedb443fe8c0e1c0c703 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 28 May 2012 16:09:28 +0100 Subject: Backport 42486a9068bc (Merge bug 24961; rabbit_alarm blows up when starting extra cluster node where {memory,disc} alarm starts off raised) --- src/rabbit_alarm.erl | 12 ++++++------ src/rabbit_reader.erl | 6 +++--- 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/src/rabbit_alarm.erl b/src/rabbit_alarm.erl index 04e0c141..d16d90a4 100644 --- a/src/rabbit_alarm.erl +++ b/src/rabbit_alarm.erl @@ -162,17 +162,17 @@ maybe_alert(UpdateFun, Node, Source, end, State#alarms{alarmed_nodes = AN1}. -alert_local(Alert, Alertees, _Source) -> - alert(Alertees, [Alert], fun erlang:'=:='/2). +alert_local(Alert, Alertees, Source) -> + alert(Alertees, Source, Alert, fun erlang:'=:='/2). alert_remote(Alert, Alertees, Source) -> - alert(Alertees, [Source, Alert], fun erlang:'=/='/2). + alert(Alertees, Source, Alert, fun erlang:'=/='/2). -alert(Alertees, AlertArg, NodeComparator) -> +alert(Alertees, Source, Alert, NodeComparator) -> Node = node(), dict:fold(fun (Pid, {M, F, A}, ok) -> case NodeComparator(Node, node(Pid)) of - true -> apply(M, F, A ++ [Pid] ++ AlertArg); + true -> apply(M, F, A ++ [Pid, Source, Alert]); false -> ok end end, ok, Alertees). @@ -181,7 +181,7 @@ internal_register(Pid, {M, F, A} = HighMemMFA, State = #alarms{alertees = Alertees}) -> _MRef = erlang:monitor(process, Pid), case dict:find(node(), State#alarms.alarmed_nodes) of - {ok, _Sources} -> apply(M, F, A ++ [Pid, true]); + {ok, Sources} -> [apply(M, F, A ++ [Pid, R, true]) || R <- Sources]; error -> ok end, NewAlertees = dict:store(Pid, HighMemMFA, Alertees), diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 5acf6aca..463bdd83 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -25,7 +25,7 @@ -export([init/4, mainloop/2]). --export([conserve_resources/2, server_properties/1]). +-export([conserve_resources/3, server_properties/1]). -define(HANDSHAKE_TIMEOUT, 10). -define(NORMAL_TIMEOUT, 3). @@ -71,7 +71,7 @@ -spec(info/2 :: (pid(), rabbit_types:info_keys()) -> rabbit_types:infos()). -spec(force_event_refresh/1 :: (pid()) -> 'ok'). -spec(shutdown/2 :: (pid(), string()) -> 'ok'). --spec(conserve_resources/2 :: (pid(), boolean()) -> 'ok'). +-spec(conserve_resources/3 :: (pid(), atom(), boolean()) -> 'ok'). -spec(server_properties/1 :: (rabbit_types:protocol()) -> rabbit_framing:amqp_table()). @@ -133,7 +133,7 @@ info(Pid, Items) -> force_event_refresh(Pid) -> gen_server:cast(Pid, force_event_refresh). -conserve_resources(Pid, Conserve) -> +conserve_resources(Pid, _Source, Conserve) -> Pid ! {conserve_resources, Conserve}, ok. -- cgit v1.2.1 From 91d50c8280419f391b8c5dd14863bfcf5c506d06 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 28 May 2012 16:42:01 +0100 Subject: Backport d0ebd517211b from default (Log errors when children fail to start) --- src/mirrored_supervisor.erl | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/src/mirrored_supervisor.erl b/src/mirrored_supervisor.erl index 221f6a87..c5f22c51 100644 --- a/src/mirrored_supervisor.erl +++ b/src/mirrored_supervisor.erl @@ -306,9 +306,9 @@ handle_call({init, Overall}, _From, Delegate = child(Overall, delegate), erlang:monitor(process, Delegate), State1 = State#state{overall = Overall, delegate = Delegate}, - case all_started([maybe_start(Group, Delegate, S) || S <- ChildSpecs]) of - true -> {reply, ok, State1}; - false -> {stop, shutdown, State1} + case errors([maybe_start(Group, Delegate, S) || S <- ChildSpecs]) of + [] -> {reply, ok, State1}; + Errors -> {stop, {shutdown, Errors}, State1} end; handle_call({start_child, ChildSpec}, _From, @@ -372,9 +372,9 @@ handle_info({'DOWN', _Ref, process, Pid, _Reason}, [start(Delegate, ChildSpec) || ChildSpec <- ChildSpecs]; _ -> [] end, - case all_started(R) of - true -> {noreply, State}; - false -> {stop, shutdown, State} + case errors(R) of + [] -> {noreply, State}; + Errors -> {stop, {shutdown, Errors}, State} end; handle_info(Info, State) -> @@ -468,7 +468,7 @@ delete_all(Group) -> [delete(Group, id(C)) || C <- mnesia:select(?TABLE, [{MatchHead, [], ['$1']}])]. -all_started(Results) -> [] =:= [R || R = {error, _} <- Results]. +errors(Results) -> [E || {error, E} <- Results]. %%---------------------------------------------------------------------------- -- cgit v1.2.1 From 422add5ea8793aa024eca016a6e0045be12e8fd3 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 28 May 2012 16:43:42 +0100 Subject: Backport 55823b694d55 (Merge of bug24362; mirrored_supervisor tests frequently fail) --- src/mirrored_supervisor.erl | 81 +++++++++++++++++++-------------------- src/mirrored_supervisor_tests.erl | 6 +-- 2 files changed, 42 insertions(+), 45 deletions(-) diff --git a/src/mirrored_supervisor.erl b/src/mirrored_supervisor.erl index c5f22c51..ab734fd9 100644 --- a/src/mirrored_supervisor.erl +++ b/src/mirrored_supervisor.erl @@ -225,8 +225,8 @@ which_children(Sup) -> fold(which_children, Sup, fun lists:append/2). count_children(Sup) -> fold(count_children, Sup, fun add_proplists/2). check_childspecs(Specs) -> ?SUPERVISOR:check_childspecs(Specs). -call(Sup, Msg) -> - ?GEN_SERVER:call(child(Sup, mirroring), Msg, infinity). +call(Sup, Msg) -> ?GEN_SERVER:call(mirroring(Sup), Msg, infinity). +cast(Sup, Msg) -> ?GEN_SERVER:cast(mirroring(Sup), Msg). find_call(Sup, Id, Msg) -> Group = call(Sup, group), @@ -237,7 +237,7 @@ find_call(Sup, Id, Msg) -> %% immediately after the tx - we can't be 100% here. So we may as %% well dirty_select. case mnesia:dirty_select(?TABLE, [{MatchHead, [], ['$1']}]) of - [Mirror] -> ?GEN_SERVER:call(Mirror, Msg, infinity); + [Mirror] -> call(Mirror, Msg); [] -> {error, not_found} end. @@ -246,13 +246,16 @@ fold(FunAtom, Sup, AggFun) -> lists:foldl(AggFun, [], [apply(?SUPERVISOR, FunAtom, [D]) || M <- ?PG2:get_members(Group), - D <- [?GEN_SERVER:call(M, delegate_supervisor, infinity)]]). + D <- [delegate(M)]]). child(Sup, Id) -> [Pid] = [Pid || {Id1, Pid, _, _} <- ?SUPERVISOR:which_children(Sup), Id1 =:= Id], Pid. +delegate(Sup) -> child(Sup, delegate). +mirroring(Sup) -> child(Sup, mirroring). + %%---------------------------------------------------------------------------- start_internal(Group, ChildSpecs) -> @@ -293,28 +296,29 @@ handle_call({init, Overall}, _From, initial_childspecs = ChildSpecs}) -> process_flag(trap_exit, true), ?PG2:create(Group), - ok = ?PG2:join(Group, self()), - Rest = ?PG2:get_members(Group) -- [self()], + ok = ?PG2:join(Group, Overall), + Rest = ?PG2:get_members(Group) -- [Overall], case Rest of [] -> {atomic, _} = mnesia:transaction(fun() -> delete_all(Group) end); _ -> ok end, [begin - ?GEN_SERVER:cast(Pid, {ensure_monitoring, self()}), + ?GEN_SERVER:cast(mirroring(Pid), {ensure_monitoring, Overall}), erlang:monitor(process, Pid) end || Pid <- Rest], - Delegate = child(Overall, delegate), + Delegate = delegate(Overall), erlang:monitor(process, Delegate), State1 = State#state{overall = Overall, delegate = Delegate}, - case errors([maybe_start(Group, Delegate, S) || S <- ChildSpecs]) of + case errors([maybe_start(Group, Overall, Delegate, S) || S <- ChildSpecs]) of [] -> {reply, ok, State1}; Errors -> {stop, {shutdown, Errors}, State1} end; handle_call({start_child, ChildSpec}, _From, - State = #state{delegate = Delegate, + State = #state{overall = Overall, + delegate = Delegate, group = Group}) -> - {reply, case maybe_start(Group, Delegate, ChildSpec) of + {reply, case maybe_start(Group, Overall, Delegate, ChildSpec) of already_in_mnesia -> {error, already_present}; {already_in_mnesia, Pid} -> {error, {already_started, Pid}}; Else -> Else @@ -327,9 +331,6 @@ handle_call({delete_child, Id}, _From, State = #state{delegate = Delegate, handle_call({msg, F, A}, _From, State = #state{delegate = Delegate}) -> {reply, apply(?SUPERVISOR, F, [Delegate | A]), State}; -handle_call(delegate_supervisor, _From, State = #state{delegate = Delegate}) -> - {reply, Delegate, State}; - handle_call(group, _From, State = #state{group = Group}) -> {reply, Group, State}; @@ -348,7 +349,7 @@ handle_cast(Msg, State) -> {stop, {unexpected_cast, Msg}, State}. handle_info({'DOWN', _Ref, process, Pid, Reason}, - State = #state{delegate = Pid, group = Group}) -> + State = #state{overall = Pid, group = Group}) -> %% Since the delegate is temporary, its death won't cause us to %% die. Since the overall supervisor kills processes in reverse %% order when shutting down "from above" and we started after the @@ -362,15 +363,16 @@ handle_info({'DOWN', _Ref, process, Pid, Reason}, {stop, Reason, State}; handle_info({'DOWN', _Ref, process, Pid, _Reason}, - State = #state{delegate = Delegate, group = Group}) -> + State = #state{delegate = Delegate, group = Group, + overall = O}) -> %% TODO load balance this %% No guarantee pg2 will have received the DOWN before us. - Self = self(), R = case lists:sort(?PG2:get_members(Group)) -- [Pid] of - [Self | _] -> {atomic, ChildSpecs} = - mnesia:transaction(fun() -> update_all(Pid) end), - [start(Delegate, ChildSpec) || ChildSpec <- ChildSpecs]; - _ -> [] + [O | _] -> {atomic, ChildSpecs} = + mnesia:transaction( + fun() -> update_all(O, Pid) end), + [start(Delegate, ChildSpec) || ChildSpec <- ChildSpecs]; + _ -> [] end, case errors(R) of [] -> {noreply, State}; @@ -389,13 +391,11 @@ code_change(_OldVsn, State, _Extra) -> %%---------------------------------------------------------------------------- tell_all_peers_to_die(Group, Reason) -> - [?GEN_SERVER:cast(P, {die, Reason}) || - P <- ?PG2:get_members(Group) -- [self()]]. + [cast(P, {die, Reason}) || P <- ?PG2:get_members(Group) -- [self()]]. -maybe_start(Group, Delegate, ChildSpec) -> - case mnesia:transaction(fun() -> - check_start(Group, Delegate, ChildSpec) - end) of +maybe_start(Group, Overall, Delegate, ChildSpec) -> + case mnesia:transaction( + fun() -> check_start(Group, Overall, Delegate, ChildSpec) end) of {atomic, start} -> start(Delegate, ChildSpec); {atomic, undefined} -> already_in_mnesia; {atomic, Pid} -> {already_in_mnesia, Pid}; @@ -403,31 +403,29 @@ maybe_start(Group, Delegate, ChildSpec) -> {aborted, E} -> {error, E} end. -check_start(Group, Delegate, ChildSpec) -> +check_start(Group, Overall, Delegate, ChildSpec) -> case mnesia:wread({?TABLE, {Group, id(ChildSpec)}}) of - [] -> write(Group, ChildSpec), + [] -> write(Group, Overall, ChildSpec), start; [S] -> #mirrored_sup_childspec{key = {Group, Id}, mirroring_pid = Pid} = S, - case self() of + case Overall of Pid -> child(Delegate, Id); _ -> case supervisor(Pid) of - dead -> write(Group, ChildSpec), + dead -> write(Group, Overall, ChildSpec), start; Delegate0 -> child(Delegate0, Id) end end end. -supervisor(Pid) -> - with_exit_handler( - fun() -> dead end, - fun() -> gen_server:call(Pid, delegate_supervisor, infinity) end). +supervisor(Pid) -> with_exit_handler(fun() -> dead end, + fun() -> delegate(Pid) end). -write(Group, ChildSpec) -> +write(Group, Overall, ChildSpec) -> ok = mnesia:write( #mirrored_sup_childspec{key = {Group, id(ChildSpec)}, - mirroring_pid = self(), + mirroring_pid = Overall, childspec = ChildSpec}), ChildSpec. @@ -453,12 +451,12 @@ check_stop(Group, Delegate, Id) -> id({Id, _, _, _, _, _}) -> Id. -update_all(OldPid) -> - MatchHead = #mirrored_sup_childspec{mirroring_pid = OldPid, +update_all(Overall, OldOverall) -> + MatchHead = #mirrored_sup_childspec{mirroring_pid = OldOverall, key = '$1', childspec = '$2', _ = '_'}, - [write(Group, C) || + [write(Group, Overall, C) || [{Group, _Id}, C] <- mnesia:select(?TABLE, [{MatchHead, [], ['$$']}])]. delete_all(Group) -> @@ -472,8 +470,7 @@ errors(Results) -> [E || {error, E} <- Results]. %%---------------------------------------------------------------------------- -create_tables() -> - create_tables([?TABLE_DEF]). +create_tables() -> create_tables([?TABLE_DEF]). create_tables([]) -> ok; diff --git a/src/mirrored_supervisor_tests.erl b/src/mirrored_supervisor_tests.erl index 4b5873a9..8bf71671 100644 --- a/src/mirrored_supervisor_tests.erl +++ b/src/mirrored_supervisor_tests.erl @@ -157,7 +157,7 @@ test_no_migration_on_shutdown() -> with_sups(fun([Evil, _]) -> ?MS:start_child(Evil, childspec(worker)), try - call(worker, ping), + call(worker, ping, 10000, 100), exit(worker_should_not_have_migrated) catch exit:{timeout_waiting_for_server, _, _} -> ok @@ -268,7 +268,7 @@ inc_group() -> get_group(Group) -> {Group, get(counter)}. -call(Id, Msg) -> call(Id, Msg, 60000, 100). +call(Id, Msg) -> call(Id, Msg, 5*24*60*60*1000, 100). call(Id, Msg, 0, _Decr) -> exit({timeout_waiting_for_server, {Id, Msg}, erlang:get_stacktrace()}); @@ -285,7 +285,7 @@ kill(Pid, Wait) when is_pid(Wait) -> kill(Pid, [Wait]); kill(Pid, Waits) -> erlang:monitor(process, Pid), [erlang:monitor(process, P) || P <- Waits], - exit(Pid, kill), + exit(Pid, bang), kill_wait(Pid), [kill_wait(P) || P <- Waits]. -- cgit v1.2.1 From 352df13dddbf8da2c1115f9fce2dcff6b23e2959 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 28 May 2012 16:44:26 +0100 Subject: Backport 39513c2967ed (Merge of bug24958; [i18n] disk free monitoring on non-english Windows broken) --- src/rabbit_disk_monitor.erl | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/rabbit_disk_monitor.erl b/src/rabbit_disk_monitor.erl index b1750b61..d9e8e8e4 100644 --- a/src/rabbit_disk_monitor.erl +++ b/src/rabbit_disk_monitor.erl @@ -178,8 +178,9 @@ parse_free_unix(CommandResult) -> parse_free_win32(CommandResult) -> LastLine = lists:last(string:tokens(CommandResult, "\r\n")), - [_, _Dir, Free, "bytes", "free"] = string:tokens(LastLine, " "), - list_to_integer(Free). + {match, [Free]} = re:run(lists:reverse(LastLine), "(\\d+)", + [{capture, all_but_first, list}]), + list_to_integer(lists:reverse(Free)). interpret_limit({mem_relative, R}) -> round(R * vm_memory_monitor:get_total_memory()); -- cgit v1.2.1 From 6fc1f45b2ea2d74038ac8c6358e4ef443d14cb4e Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 28 May 2012 16:45:03 +0100 Subject: Backport 02c3557e4842 (Merge of bug24889; i18n: rabbitmqctl displays non-ASCII characters incorrectly in various confirm messages) --- src/rabbit_control.erl | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 8b24d2e3..573ed6a3 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -216,33 +216,33 @@ action(rotate_logs, Node, [], _Opts, Inform) -> Inform("Reopening logs for node ~p", [Node]), call(Node, {rabbit, rotate_logs, [""]}); action(rotate_logs, Node, Args = [Suffix], _Opts, Inform) -> - Inform("Rotating logs to files with suffix ~p", [Suffix]), + Inform("Rotating logs to files with suffix \"~s\"", [Suffix]), call(Node, {rabbit, rotate_logs, Args}); action(close_connection, Node, [PidStr, Explanation], _Opts, Inform) -> - Inform("Closing connection ~s", [PidStr]), + Inform("Closing connection \"~s\"", [PidStr]), rpc_call(Node, rabbit_networking, close_connection, [rabbit_misc:string_to_pid(PidStr), Explanation]); action(add_user, Node, Args = [Username, _Password], _Opts, Inform) -> - Inform("Creating user ~p", [Username]), + Inform("Creating user \"~s\"", [Username]), call(Node, {rabbit_auth_backend_internal, add_user, Args}); action(delete_user, Node, Args = [_Username], _Opts, Inform) -> - Inform("Deleting user ~p", Args), + Inform("Deleting user \"~s\"", Args), call(Node, {rabbit_auth_backend_internal, delete_user, Args}); action(change_password, Node, Args = [Username, _Newpassword], _Opts, Inform) -> - Inform("Changing password for user ~p", [Username]), + Inform("Changing password for user \"~s\"", [Username]), call(Node, {rabbit_auth_backend_internal, change_password, Args}); action(clear_password, Node, Args = [Username], _Opts, Inform) -> - Inform("Clearing password for user ~p", [Username]), + Inform("Clearing password for user \"~s\"", [Username]), call(Node, {rabbit_auth_backend_internal, clear_password, Args}); action(set_user_tags, Node, [Username | TagsStr], _Opts, Inform) -> Tags = [list_to_atom(T) || T <- TagsStr], - Inform("Setting tags for user ~p to ~p", [Username, Tags]), + Inform("Setting tags for user \"~s\" to ~p", [Username, Tags]), rpc_call(Node, rabbit_auth_backend_internal, set_tags, [list_to_binary(Username), Tags]); @@ -253,11 +253,11 @@ action(list_users, Node, [], _Opts, Inform) -> rabbit_auth_backend_internal:user_info_keys()); action(add_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Creating vhost ~p", Args), + Inform("Creating vhost \"~s\"", Args), call(Node, {rabbit_vhost, add, Args}); action(delete_vhost, Node, Args = [_VHostPath], _Opts, Inform) -> - Inform("Deleting vhost ~p", Args), + Inform("Deleting vhost \"~s\"", Args), call(Node, {rabbit_vhost, delete, Args}); action(list_vhosts, Node, Args, _Opts, Inform) -> @@ -319,12 +319,12 @@ action(list_consumers, Node, _Args, Opts, Inform) -> action(trace_on, Node, [], Opts, Inform) -> VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Starting tracing for vhost ~p", [VHost]), + Inform("Starting tracing for vhost \"~s\"", [VHost]), rpc_call(Node, rabbit_trace, start, [list_to_binary(VHost)]); action(trace_off, Node, [], Opts, Inform) -> VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Stopping tracing for vhost ~p", [VHost]), + Inform("Stopping tracing for vhost \"~s\"", [VHost]), rpc_call(Node, rabbit_trace, stop, [list_to_binary(VHost)]); action(set_vm_memory_high_watermark, Node, [Arg], _Opts, Inform) -> @@ -337,19 +337,21 @@ action(set_vm_memory_high_watermark, Node, [Arg], _Opts, Inform) -> action(set_permissions, Node, [Username, CPerm, WPerm, RPerm], Opts, Inform) -> VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Setting permissions for user ~p in vhost ~p", [Username, VHost]), + Inform("Setting permissions for user \"~s\" in vhost \"~s\"", + [Username, VHost]), call(Node, {rabbit_auth_backend_internal, set_permissions, [Username, VHost, CPerm, WPerm, RPerm]}); action(clear_permissions, Node, [Username], Opts, Inform) -> VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Clearing permissions for user ~p in vhost ~p", [Username, VHost]), + Inform("Clearing permissions for user \"~s\" in vhost \"~s\"", + [Username, VHost]), call(Node, {rabbit_auth_backend_internal, clear_permissions, [Username, VHost]}); action(list_permissions, Node, [], Opts, Inform) -> VHost = proplists:get_value(?VHOST_OPT, Opts), - Inform("Listing permissions in vhost ~p", [VHost]), + Inform("Listing permissions in vhost \"~s\"", [VHost]), display_info_list(call(Node, {rabbit_auth_backend_internal, list_vhost_permissions, [VHost]}), rabbit_auth_backend_internal:vhost_perms_info_keys()); -- cgit v1.2.1 From 1f758bdcb7585317bc60f892662d02b39ba6f6be Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 28 May 2012 16:56:27 +0100 Subject: Backport d7c317f15297 (Merge of bug24945; GM: Members don't track their own state) --- src/gm.erl | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index 01300f18..4c2b346f 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -533,7 +533,7 @@ init([GroupName, Module, Args]) -> group_name = GroupName, module = Module, view = undefined, - pub_count = 0, + pub_count = -1, members_state = undefined, callback_args = Args, confirms = queue:new(), @@ -829,13 +829,14 @@ internal_broadcast(Msg, From, State = #state { self = Self, confirms = Confirms, callback_args = Args, broadcast_buffer = Buffer }) -> + PubCount1 = PubCount + 1, Result = Module:handle_msg(Args, get_pid(Self), Msg), - Buffer1 = [{PubCount, Msg} | Buffer], + Buffer1 = [{PubCount1, Msg} | Buffer], Confirms1 = case From of none -> Confirms; - _ -> queue:in({PubCount, From}, Confirms) + _ -> queue:in({PubCount1, From}, Confirms) end, - State1 = State #state { pub_count = PubCount + 1, + State1 = State #state { pub_count = PubCount1, confirms = Confirms1, broadcast_buffer = Buffer1 }, case From =/= none of @@ -850,14 +851,17 @@ flush_broadcast_buffer(State = #state { broadcast_buffer = [] }) -> State; flush_broadcast_buffer(State = #state { self = Self, members_state = MembersState, - broadcast_buffer = Buffer }) -> + broadcast_buffer = Buffer, + pub_count = PubCount }) -> + [{PubCount, _Msg}|_] = Buffer, %% ASSERTION match on PubCount Pubs = lists:reverse(Buffer), Activity = activity_cons(Self, Pubs, [], activity_nil()), ok = maybe_send_activity(activity_finalise(Activity), State), MembersState1 = with_member( fun (Member = #member { pending_ack = PA }) -> PA1 = queue:join(PA, queue:from_list(Pubs)), - Member #member { pending_ack = PA1 } + Member #member { pending_ack = PA1, + last_pub = PubCount } end, Self, MembersState), State #state { members_state = MembersState1, broadcast_buffer = [] }. -- cgit v1.2.1 From 8d92857704a9564de0b66965d9bdd1661dbd1b30 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 28 May 2012 16:56:48 +0100 Subject: Backport 15f056f3ea18 (Merge of bug24954; GM: callback replies handled incorrectly) --- src/gm.erl | 34 ++++++++++++++++++++++++---------- 1 file changed, 24 insertions(+), 10 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index 4c2b346f..bb5ab838 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -1291,16 +1291,30 @@ send_right(Right, View, Msg) -> ok = gen_server2:cast(get_pid(Right), {?TAG, view_version(View), Msg}). callback(Args, Module, Activity) -> - lists:foldl( - fun ({Id, Pubs, _Acks}, ok) -> - lists:foldl(fun ({_PubNum, Pub}, ok) -> - Module:handle_msg(Args, get_pid(Id), Pub); - (_, Error) -> - Error - end, ok, Pubs); - (_, Error) -> - Error - end, ok, Activity). + Result = + lists:foldl( + fun ({Id, Pubs, _Acks}, {Args1, Module1, ok}) -> + lists:foldl(fun ({_PubNum, Pub}, Acc = {Args2, Module2, ok}) -> + case Module2:handle_msg( + Args2, get_pid(Id), Pub) of + ok -> + Acc; + {become, Module3, Args3} -> + {Args3, Module3, ok}; + {stop, _Reason} = Error -> + Error + end; + (_, Error = {stop, _Reason}) -> + Error + end, {Args1, Module1, ok}, Pubs); + (_, Error = {stop, _Reason}) -> + Error + end, {Args, Module, ok}, Activity), + case Result of + {Args, Module, ok} -> ok; + {Args1, Module1, ok} -> {become, Module1, Args1}; + {stop, _Reason} = Error -> Error + end. callback_view_changed(Args, Module, OldView, NewView) -> OldMembers = all_known_members(OldView), -- cgit v1.2.1 From e6b7c4712bb4ebddcfee79a460daf6c1a65dbd23 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 28 May 2012 16:57:23 +0100 Subject: Backport f84cd154ce0e (Merge of bug24946; GM: view and member_state can diverge) --- src/gm.erl | 50 +++++++++++++++++++++++++++++++------------------- 1 file changed, 31 insertions(+), 19 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index bb5ab838..78f8f34c 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -575,33 +575,39 @@ handle_call({add_on_right, NewMember}, _From, members_state = MembersState, module = Module, callback_args = Args }) -> - Group = record_new_member_in_group( - GroupName, Self, NewMember, - fun (Group1) -> - View1 = group_to_view(Group1), - ok = send_right(NewMember, View1, - {catchup, Self, prepare_members_state( - MembersState)}) - end), + {MembersState1, Group} = + record_new_member_in_group( + GroupName, Self, NewMember, + fun (Group1) -> + View1 = group_to_view(Group1), + MembersState1 = remove_erased_members(MembersState, View1), + ok = send_right(NewMember, View1, + {catchup, Self, + prepare_members_state(MembersState1)}), + MembersState1 + end), View2 = group_to_view(Group), - State1 = check_neighbours(State #state { view = View2 }), + State1 = check_neighbours(State #state { view = View2, + members_state = MembersState1 }), Result = callback_view_changed(Args, Module, View, View2), handle_callback_result({Result, {ok, Group}, State1}). handle_cast({?TAG, ReqVer, Msg}, State = #state { view = View, + members_state = MembersState, group_name = GroupName, module = Module, callback_args = Args }) -> {Result, State1} = case needs_view_update(ReqVer, View) of - true -> - View1 = group_to_view(read_group(GroupName)), - {callback_view_changed(Args, Module, View, View1), - check_neighbours(State #state { view = View1 })}; - false -> - {ok, State} + true -> View1 = group_to_view(read_group(GroupName)), + MemberState1 = remove_erased_members(MembersState, View1), + {callback_view_changed(Args, Module, View, View1), + check_neighbours( + State #state { view = View1, + members_state = MemberState1 })}; + false -> {ok, State} end, handle_callback_result( if_callback_success( @@ -1056,7 +1062,7 @@ record_dead_member_in_group(Member, GroupName) -> Group. record_new_member_in_group(GroupName, Left, NewMember, Fun) -> - {atomic, Group} = + {atomic, {Result, Group}} = mnesia:sync_transaction( fun () -> [#gm_group { members = Members, version = Ver } = Group1] = @@ -1066,11 +1072,11 @@ record_new_member_in_group(GroupName, Left, NewMember, Fun) -> Members1 = Prefix ++ [Left, NewMember | Suffix], Group2 = Group1 #gm_group { members = Members1, version = Ver + 1 }, - ok = Fun(Group2), + Result = Fun(Group2), mnesia:write(Group2), - Group2 + {Result, Group2} end), - Group. + {Result, Group}. erase_members_in_group(Members, GroupName) -> DeadMembers = [{dead, Id} || Id <- Members], @@ -1261,6 +1267,12 @@ make_member(GroupName) -> {error, not_found} -> ?VERSION_START end, self()}. +remove_erased_members(MembersState, View) -> + lists:foldl(fun (Id, MembersState1) -> + store_member(Id, find_member_or_blank(Id, MembersState), + MembersState1) + end, blank_member_state(), all_known_members(View)). + get_pid({_Version, Pid}) -> Pid. get_pids(Ids) -> [Pid || {_Version, Pid} <- Ids]. -- cgit v1.2.1 From 704dc052a57f6f0e81f3fa1cc346d924e7561640 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 28 May 2012 16:58:11 +0100 Subject: Backport 9a3842896665 (Merge of bug24952; GM: incorrect alias erasure) --- src/gm.erl | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index 78f8f34c..ba642a8d 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -671,22 +671,21 @@ handle_info({'DOWN', MRef, process, _Pid, _Reason}, _ -> View1 = group_to_view(record_dead_member_in_group(Member, GroupName)), - State1 = State #state { view = View1 }, {Result, State2} = case alive_view_members(View1) of [Self] -> - maybe_erase_aliases( - State1 #state { + {Result1, State1} = maybe_erase_aliases(State, View1), + {Result1, State1 #state { members_state = blank_member_state(), - confirms = purge_confirms(Confirms) }); + confirms = purge_confirms(Confirms) }}; _ -> %% here we won't be pointing out any deaths: %% the concern is that there maybe births %% which we'd otherwise miss. {callback_view_changed(Args, Module, View, View1), - State1} + check_neighbours(State #state { view = View1 })} end, - handle_callback_result({Result, check_neighbours(State2)}) + handle_callback_result({Result, State2}) end. @@ -801,8 +800,8 @@ handle_msg({activity, Left, Activity}, State1 = State #state { members_state = MembersState1, confirms = Confirms1 }, Activity3 = activity_finalise(Activity1), - {Result, State2} = maybe_erase_aliases(State1), - ok = maybe_send_activity(Activity3, State2), + ok = maybe_send_activity(Activity3, State1), + {Result, State2} = maybe_erase_aliases(State1, View), if_callback_success( Result, fun activity_true/3, fun activity_false/3, Activity3, State2); @@ -1099,10 +1098,10 @@ erase_members_in_group(Members, GroupName) -> maybe_erase_aliases(State = #state { self = Self, group_name = GroupName, - view = View, + view = View0, members_state = MembersState, module = Module, - callback_args = Args }) -> + callback_args = Args }, View) -> #view_member { aliases = Aliases } = fetch_view_member(Self, View), {Erasable, MembersState1} = ?SETS:fold( @@ -1117,11 +1116,11 @@ maybe_erase_aliases(State = #state { self = Self, end, {[], MembersState}, Aliases), State1 = State #state { members_state = MembersState1 }, case Erasable of - [] -> {ok, State1}; + [] -> {ok, State1 #state { view = View }}; _ -> View1 = group_to_view( erase_members_in_group(Erasable, GroupName)), - {callback_view_changed(Args, Module, View, View1), - State1 #state { view = View1 }} + {callback_view_changed(Args, Module, View0, View1), + check_neighbours(State1 #state { view = View1 })} end. can_erase_view_member(Self, Self, _LA, _LP) -> false; -- cgit v1.2.1 From 592398bf0ef6368f719ecb2f2b69e2644e4aa277 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 28 May 2012 16:58:39 +0100 Subject: Backport 5735f418aa44 (Merge of bug24944; GM: 'DOWN' messages can overtake catchups) --- src/gm.erl | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index ba642a8d..eb93e4c4 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -698,9 +698,13 @@ terminate(Reason, State = #state { module = Module, code_change(_OldVsn, State, _Extra) -> {ok, State}. -prioritise_info(flush, _State) -> 1; -prioritise_info({'DOWN', _MRef, process, _Pid, _Reason}, _State) -> 1; -prioritise_info(_ , _State) -> 0. +prioritise_info(flush, _State) -> + 1; +prioritise_info({'DOWN', _MRef, process, _Pid, _Reason}, + #state { members_state = MS }) when MS /= undefined -> + 1; +prioritise_info(_, _State) -> + 0. handle_msg(check_neighbours, State) -> -- cgit v1.2.1 From eeb536ce7b6652ab248a1dd856b0eb6375ee0c9b Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 29 May 2012 18:10:39 +0100 Subject: Backport fa4812e04959 (Merge of bug24918; Debian release updates) --- packaging/debs/Debian/debian/control | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/packaging/debs/Debian/debian/control b/packaging/debs/Debian/debian/control index e935acf5..943ed48f 100644 --- a/packaging/debs/Debian/debian/control +++ b/packaging/debs/Debian/debian/control @@ -2,7 +2,7 @@ Source: rabbitmq-server Section: net Priority: extra Maintainer: RabbitMQ Team -Uploader: Emile Joubert +Uploaders: Emile Joubert DM-Upload-Allowed: yes Build-Depends: cdbs, debhelper (>= 5), erlang-dev, python-simplejson, xmlto, xsltproc, erlang-nox (>= 1:12.b.3), erlang-src (>= 1:12.b.3), unzip, zip Standards-Version: 3.8.0 -- cgit v1.2.1 From f1a2fdc74e62e517ec155b5c993162da80b4db04 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 1 Jun 2012 11:01:25 +0100 Subject: Backport 06796ad6250b (Merge of bug24924; RABBITMQ_PLUGINS_DIR not settable on Windows) --- scripts/rabbitmq-plugins.bat | 4 +++- scripts/rabbitmq-server.bat | 5 ++++- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/scripts/rabbitmq-plugins.bat b/scripts/rabbitmq-plugins.bat index 66a900a1..3d7a2d99 100755 --- a/scripts/rabbitmq-plugins.bat +++ b/scripts/rabbitmq-plugins.bat @@ -43,7 +43,9 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_ENABLED_PLUGINS_FILE=!RABBITMQ_BASE!\enabled_plugins ) -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins +if "!RABBITMQ_PLUGINS_DIR!"=="" ( + set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins +) "!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden -sname rabbitmq-plugins!RANDOM! -s rabbit_plugins -enabled_plugins_file "!RABBITMQ_ENABLED_PLUGINS_FILE!" -plugins_dist_dir "!RABBITMQ_PLUGINS_DIR:\=/!" -extra !STAR! diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index ca49a5d8..0123ed24 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -86,7 +86,10 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_ENABLED_PLUGINS_FILE=!RABBITMQ_BASE!\enabled_plugins ) -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins +if "!RABBITMQ_PLUGINS_DIR!"=="" ( + set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins +) + set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin "!ERLANG_HOME!\bin\erl.exe" ^ -- cgit v1.2.1 From 144e021d94c1a6b841c99b31b11ae74ec4e1dee5 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 8 Jun 2012 17:36:36 +0100 Subject: Backport c50d1aceb148 (Merge of bug24984; Normal HA queue exit leaks processes) --- src/rabbit_mirror_queue_coordinator.erl | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/src/rabbit_mirror_queue_coordinator.erl b/src/rabbit_mirror_queue_coordinator.erl index 17e2ffb4..71e0507a 100644 --- a/src/rabbit_mirror_queue_coordinator.erl +++ b/src/rabbit_mirror_queue_coordinator.erl @@ -354,7 +354,10 @@ handle_cast(request_length, State = #state { length_fun = LengthFun }) -> noreply(State); handle_cast({ensure_monitoring, Pids}, State = #state { monitors = Mons }) -> - noreply(State #state { monitors = pmon:monitor_all(Pids, Mons) }). + noreply(State #state { monitors = pmon:monitor_all(Pids, Mons) }); + +handle_cast({delete_and_terminate, Reason}, State) -> + {stop, Reason, State}. handle_info(send_gm_heartbeat, State = #state { gm = GM }) -> gm:broadcast(GM, heartbeat), @@ -402,6 +405,9 @@ handle_msg([CPid], _From, request_length = Msg) -> ok = gen_server2:cast(CPid, Msg); handle_msg([CPid], _From, {ensure_monitoring, _Pids} = Msg) -> ok = gen_server2:cast(CPid, Msg); +handle_msg([CPid], _From, {delete_and_terminate, Reason} = Msg) -> + ok = gen_server2:cast(CPid, Msg), + {stop, Reason}; handle_msg([_CPid], _From, _Msg) -> ok. -- cgit v1.2.1 From 94f486db91c0472b4171331241bdc1e24f032245 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 11 Jun 2012 14:21:08 +0100 Subject: Backport 31c52f398b85 (Merge of bug24989; Uninstalling rabbitmq-server deb fails if broker is stopped) --- packaging/debs/Debian/debian/rabbitmq-server.init | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/packaging/debs/Debian/debian/rabbitmq-server.init b/packaging/debs/Debian/debian/rabbitmq-server.init index f514b974..46f579d1 100644 --- a/packaging/debs/Debian/debian/rabbitmq-server.init +++ b/packaging/debs/Debian/debian/rabbitmq-server.init @@ -140,7 +140,8 @@ start_stop_end() { log_end_msg 0;; 3) log_warning_msg "${DESC} already ${1}" - log_end_msg 0;; + log_end_msg 0 + RETVAL=0;; *) log_warning_msg "FAILED - check ${INIT_LOG_DIR}/startup_\{log, _err\}" log_end_msg 1;; -- cgit v1.2.1 From db7e92b8b3324c7b354e6a159350c4a2d8e0f462 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 13 Jun 2012 14:41:07 +0100 Subject: If we exit with outstanding gen_server calls, better to have them return something and presumably badmatch than just hang forever. --- src/gm.erl | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index 30fcdc5d..b046cfde 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -673,7 +673,7 @@ handle_info({'DOWN', MRef, process, _Pid, _Reason}, {Result1, State1} = maybe_erase_aliases(State, View1), {Result1, State1 #state { members_state = blank_member_state(), - confirms = purge_confirms(Confirms) }}; + confirms = purge_confirms(Confirms, ok) }}; _ -> %% here we won't be pointing out any deaths: %% the concern is that there maybe births @@ -686,8 +686,11 @@ handle_info({'DOWN', MRef, process, _Pid, _Reason}, terminate(Reason, State = #state { module = Module, - callback_args = Args }) -> + callback_args = Args, + confirms = Confirms }) -> flush_broadcast_buffer(State), + %% Probably better to badmatch than hang + purge_confirms(Confirms, terminated), Module:terminate(Args, Reason). @@ -1368,8 +1371,9 @@ maybe_confirm(Self, Self, Confirms, [PubNum | PubNums]) -> maybe_confirm(_Self, _Id, Confirms, _PubNums) -> Confirms. -purge_confirms(Confirms) -> - [gen_server2:reply(From, ok) || {_PubNum, From} <- queue:to_list(Confirms)], +purge_confirms(Confirms, Reply) -> + [gen_server2:reply(From, Reply) || + {_PubNum, From} <- queue:to_list(Confirms)], queue:new(). -- cgit v1.2.1 From e4d5120b05cfb31070ffff8e932656290e702ba6 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 14 Jun 2012 16:15:41 +0100 Subject: Backport 166f1c917623 (Merge of bug24930; Update Debian init script to use --background flag on start-stop-daemon) --- packaging/RPMS/Fedora/Makefile | 1 + packaging/common/rabbitmq-script-wrapper | 4 +++- packaging/debs/Debian/Makefile | 1 + packaging/debs/Debian/debian/rabbitmq-server.init | 5 +---- 4 files changed, 6 insertions(+), 5 deletions(-) diff --git a/packaging/RPMS/Fedora/Makefile b/packaging/RPMS/Fedora/Makefile index 180500ed..03e513f8 100644 --- a/packaging/RPMS/Fedora/Makefile +++ b/packaging/RPMS/Fedora/Makefile @@ -42,6 +42,7 @@ ifeq "$(RPM_OS)" "fedora" SOURCES/rabbitmq-server.init endif sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ + -e 's|@STDOUT_STDERR_REDIRECTION@||' \ SOURCES/rabbitmq-script-wrapper cp rabbitmq-server.logrotate SOURCES/rabbitmq-server.logrotate diff --git a/packaging/common/rabbitmq-script-wrapper b/packaging/common/rabbitmq-script-wrapper index 0e59c218..e832aed6 100644 --- a/packaging/common/rabbitmq-script-wrapper +++ b/packaging/common/rabbitmq-script-wrapper @@ -29,7 +29,9 @@ cd /var/lib/rabbitmq SCRIPT=`basename $0` -if [ `id -u` = `id -u rabbitmq` -o "$SCRIPT" = "rabbitmq-plugins" ] ; then +if [ `id -u` = `id -u rabbitmq` -a "$SCRIPT" = "rabbitmq-server" ] ; then + /usr/lib/rabbitmq/bin/rabbitmq-server "$@" @STDOUT_STDERR_REDIRECTION@ +elif [ `id -u` = `id -u rabbitmq` -o "$SCRIPT" = "rabbitmq-plugins" ] ; then /usr/lib/rabbitmq/bin/${SCRIPT} "$@" elif [ `id -u` = 0 ] ; then @SU_RABBITMQ_SH_C@ "/usr/lib/rabbitmq/bin/${SCRIPT} ${CMDLINE}" diff --git a/packaging/debs/Debian/Makefile b/packaging/debs/Debian/Makefile index 844388c6..1e4bf755 100644 --- a/packaging/debs/Debian/Makefile +++ b/packaging/debs/Debian/Makefile @@ -23,6 +23,7 @@ package: clean cp -r debian $(UNPACKED_DIR) cp $(COMMON_DIR)/* $(UNPACKED_DIR)/debian/ sed -i -e 's|@SU_RABBITMQ_SH_C@|su rabbitmq -s /bin/sh -c|' \ + -e 's|@STDOUT_STDERR_REDIRECTION@| > "/var/log/rabbitmq/startup_log" 2> "/var/log/rabbitmq/startup_err"|' \ $(UNPACKED_DIR)/debian/rabbitmq-script-wrapper chmod a+x $(UNPACKED_DIR)/debian/rules echo "This package was debianized by Tony Garnock-Jones on\nWed, 3 Jan 2007 15:43:44 +0000.\n\nIt was downloaded from http://www.rabbitmq.com/\n\n" > $(UNPACKED_DIR)/debian/copyright diff --git a/packaging/debs/Debian/debian/rabbitmq-server.init b/packaging/debs/Debian/debian/rabbitmq-server.init index 46f579d1..f52c9f78 100644 --- a/packaging/debs/Debian/debian/rabbitmq-server.init +++ b/packaging/debs/Debian/debian/rabbitmq-server.init @@ -60,10 +60,7 @@ start_rabbitmq () { set +e RABBITMQ_PID_FILE=$PID_FILE start-stop-daemon --quiet \ --chuid rabbitmq --start --exec $DAEMON \ - --pidfile "$RABBITMQ_PID_FILE" \ - > "${INIT_LOG_DIR}/startup_log" \ - 2> "${INIT_LOG_DIR}/startup_err" \ - 0<&- & + --pidfile "$RABBITMQ_PID_FILE" --background $CONTROL wait $PID_FILE >/dev/null 2>&1 RETVAL=$? set -e -- cgit v1.2.1 From e30874df1b9b05b0948bc2cb6785a8003d353661 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 14 Jun 2012 17:59:02 +0100 Subject: Backport 4a224e961141 (Merge of bug24939; delays in handling node down causes errors on transient queue operations) --- src/rabbit_amqqueue.erl | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index c1673504..eca1017c 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -166,6 +166,9 @@ [queue_name, channel_pid, consumer_tag, ack_required]). start() -> + %% Clear out remnants of old incarnation, in case we restarted + %% faster than other nodes handled DOWN messages from us. + on_node_down(node()), DurableQueues = find_durable_queues(), {ok, BQ} = application:get_env(rabbit, backing_queue_module), ok = BQ:start([QName || #amqqueue{name = QName} <- DurableQueues]), @@ -573,7 +576,8 @@ on_node_down(Node) -> #amqqueue{name = QName, pid = Pid, slave_pids = []} <- mnesia:table(rabbit_queue), - node(Pid) == Node])), + node(Pid) == Node andalso + not is_process_alive(Pid)])), {Qs, Dels} = lists:unzip(QsDels), T = rabbit_binding:process_deletions( lists:foldl(fun rabbit_binding:combine_deletions/2, -- cgit v1.2.1 From 0d28244d560968c85db138934ebb113eb296ba82 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 19 Jun 2012 12:26:23 +0100 Subject: Backport 6ceaf986f26d (Merge of bug24994; rotating logs consumes memory according to the size of the logfile) --- src/rabbit_file.erl | 32 ++++++++++---------------------- 1 file changed, 10 insertions(+), 22 deletions(-) diff --git a/src/rabbit_file.erl b/src/rabbit_file.erl index 59df14f3..5937a335 100644 --- a/src/rabbit_file.erl +++ b/src/rabbit_file.erl @@ -102,9 +102,12 @@ read_file_info(File) -> with_fhc_handle(fun () -> prim_file:read_file_info(File) end). with_fhc_handle(Fun) -> - ok = file_handle_cache:obtain(), + with_fhc_handle(1, Fun). + +with_fhc_handle(N, Fun) -> + [ ok = file_handle_cache:obtain() || _ <- lists:seq(1, N)], try Fun() - after ok = file_handle_cache:release() + after [ ok = file_handle_cache:release() || _ <- lists:seq(1, N)] end. read_term_file(File) -> @@ -165,27 +168,12 @@ make_binary(List) -> {error, Reason} end. - append_file(File, Suffix) -> - case read_file_info(File) of - {ok, FInfo} -> append_file(File, FInfo#file_info.size, Suffix); - {error, enoent} -> append_file(File, 0, Suffix); - Error -> Error - end. - -append_file(_, _, "") -> - ok; -append_file(File, 0, Suffix) -> - with_fhc_handle(fun () -> - case prim_file:open([File, Suffix], [append]) of - {ok, Fd} -> prim_file:close(Fd); - Error -> Error - end - end); -append_file(File, _, Suffix) -> - case with_fhc_handle(fun () -> prim_file:read_file(File) end) of - {ok, Data} -> write_file([File, Suffix], Data, [append]); - Error -> Error + case with_fhc_handle(2, fun () -> + file:copy(File, {[File, Suffix], [append]}) + end) of + {ok, _BytesCopied} -> ok; + Error -> Error end. ensure_parent_dirs_exist(Filename) -> -- cgit v1.2.1 From 016bd08ec5864bf56ba2e54bde41a906ffcf3b2c Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 19 Jun 2012 14:18:59 +0100 Subject: Backport 0eab0737b3c2 (Merge of bug24981; Interim upstart support) --- packaging/debs/Debian/debian/rabbitmq-server.init | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/packaging/debs/Debian/debian/rabbitmq-server.init b/packaging/debs/Debian/debian/rabbitmq-server.init index f52c9f78..00a1fa7e 100644 --- a/packaging/debs/Debian/debian/rabbitmq-server.init +++ b/packaging/debs/Debian/debian/rabbitmq-server.init @@ -134,14 +134,18 @@ restart_end() { start_stop_end() { case "$RETVAL" in 0) - log_end_msg 0;; + [ -x /sbin/initctl ] && /sbin/initctl emit --no-wait "${NAME}-${1}" + log_end_msg 0 + ;; 3) log_warning_msg "${DESC} already ${1}" log_end_msg 0 - RETVAL=0;; + RETVAL=0 + ;; *) log_warning_msg "FAILED - check ${INIT_LOG_DIR}/startup_\{log, _err\}" - log_end_msg 1;; + log_end_msg 1 + ;; esac } @@ -149,7 +153,7 @@ case "$1" in start) log_daemon_msg "Starting ${DESC}" $NAME start_rabbitmq - start_stop_end "started" + start_stop_end "running" ;; stop) log_daemon_msg "Stopping ${DESC}" $NAME -- cgit v1.2.1 From 302abe3ea39e654a32af30266fad483c7845915b Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 19 Jun 2012 14:21:39 +0100 Subject: Backport 6871aae71b8b (Merge of bug24966; Prioritising deliveries leads to publish starvation) --- src/rabbit_amqqueue_process.erl | 6 ------ 1 file changed, 6 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 5701efeb..f2833c26 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -984,8 +984,6 @@ prioritise_call(Msg, _From, _State) -> info -> 9; {info, _Items} -> 9; consumers -> 9; - {basic_consume, _, _, _, _, _, _} -> 7; - {basic_cancel, _, _, _} -> 7; stat -> 7; _ -> 0 end. @@ -995,10 +993,6 @@ prioritise_cast(Msg, _State) -> delete_immediately -> 8; {set_ram_duration_target, _Duration} -> 8; {set_maximum_since_use, _Age} -> 8; - {ack, _AckTags, _ChPid} -> 7; - {reject, _AckTags, _Requeue, _ChPid} -> 7; - {notify_sent, _ChPid, _Credit} -> 7; - {unblock, _ChPid} -> 7; {run_backing_queue, _Mod, _Fun} -> 6; _ -> 0 end. -- cgit v1.2.1 From 94bf0943fc1571336e985c9357155ee68bac1f6f Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 19 Jun 2012 16:57:33 +0100 Subject: Backport 29ae7817483c (Merge of bug24992; Reduce disk space limit default to something few users will hit) --- ebin/rabbit_app.in | 2 +- src/rabbit_disk_monitor.erl | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in index b7d14f20..42331b22 100644 --- a/ebin/rabbit_app.in +++ b/ebin/rabbit_app.in @@ -19,7 +19,7 @@ {ssl_listeners, []}, {ssl_options, []}, {vm_memory_high_watermark, 0.4}, - {disk_free_limit, {mem_relative, 1.0}}, + {disk_free_limit, 1000000000}, %% 1GB {msg_store_index_module, rabbit_msg_store_ets_index}, {backing_queue_module, rabbit_variable_queue}, {frame_max, 131072}, diff --git a/src/rabbit_disk_monitor.erl b/src/rabbit_disk_monitor.erl index d9e8e8e4..83fd0517 100644 --- a/src/rabbit_disk_monitor.erl +++ b/src/rabbit_disk_monitor.erl @@ -27,7 +27,7 @@ set_check_interval/1, get_disk_free/0]). -define(SERVER, ?MODULE). --define(DEFAULT_DISK_CHECK_INTERVAL, 60000). +-define(DEFAULT_DISK_CHECK_INTERVAL, 10000). -record(state, {dir, limit, -- cgit v1.2.1 From bf38715530e9ed7335d47766342b26a4215899b8 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 21 Jun 2012 12:17:47 +0100 Subject: Changelogs for 2.8.3 --- packaging/RPMS/Fedora/rabbitmq-server.spec | 3 +++ packaging/debs/Debian/debian/changelog | 6 ++++++ 2 files changed, 9 insertions(+) diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec index a6899005..4ed07644 100644 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ b/packaging/RPMS/Fedora/rabbitmq-server.spec @@ -121,6 +121,9 @@ done rm -rf %{buildroot} %changelog +* Thu Jun 21 2012 simon@rabbitmq.com 2.8.3-1 +- New Upstream Release + * Fri Dec 16 2011 steve@rabbitmq.com 2.7.1-1 - New Upstream Release diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog index b3743c39..a730fb71 100644 --- a/packaging/debs/Debian/debian/changelog +++ b/packaging/debs/Debian/debian/changelog @@ -1,3 +1,9 @@ +rabbitmq-server (2.8.3-1) unstable; urgency=low + + * New Upstream Release + + -- Simon MacMullen Thu, 21 Jun 2012 12:03:10 +0100 + rabbitmq-server (2.7.1-1) natty; urgency=low * New Upstream Release -- cgit v1.2.1 -- cgit v1.2.1 From 74c2ed6a8da41dbc3ce52e5f18238140aeaf3442 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 22 Jun 2012 16:52:07 +0100 Subject: Backport 6975c68ab01f (Merge of bug25005; rabbitmq-plugins.bat on windows does nothing) --- scripts/rabbitmq-plugins.bat | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/scripts/rabbitmq-plugins.bat b/scripts/rabbitmq-plugins.bat index 3d7a2d99..194d3705 100755 --- a/scripts/rabbitmq-plugins.bat +++ b/scripts/rabbitmq-plugins.bat @@ -43,9 +43,9 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_ENABLED_PLUGINS_FILE=!RABBITMQ_BASE!\enabled_plugins ) -if "!RABBITMQ_PLUGINS_DIR!"=="" ( - set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins -) +if "!RABBITMQ_PLUGINS_DIR!"=="" ( + set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins +) "!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden -sname rabbitmq-plugins!RANDOM! -s rabbit_plugins -enabled_plugins_file "!RABBITMQ_ENABLED_PLUGINS_FILE!" -plugins_dist_dir "!RABBITMQ_PLUGINS_DIR:\=/!" -extra !STAR! -- cgit v1.2.1 From ffaac6b8b107ce92016e9a8e1ee6fc8f94c4e385 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 22 Jun 2012 16:52:31 +0100 Subject: Backport b2eef0b1b7b5 (Merge of bug25021; Bug 24994 can cause log files to grow in size exponentially) --- src/rabbit_file.erl | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/src/rabbit_file.erl b/src/rabbit_file.erl index 5937a335..a95f8f26 100644 --- a/src/rabbit_file.erl +++ b/src/rabbit_file.erl @@ -168,7 +168,24 @@ make_binary(List) -> {error, Reason} end. +%% TODO the semantics of this function are rather odd. But see bug 25021. append_file(File, Suffix) -> + case read_file_info(File) of + {ok, FInfo} -> append_file(File, FInfo#file_info.size, Suffix); + {error, enoent} -> append_file(File, 0, Suffix); + Error -> Error + end. + +append_file(_, _, "") -> + ok; +append_file(File, 0, Suffix) -> + with_fhc_handle(fun () -> + case prim_file:open([File, Suffix], [append]) of + {ok, Fd} -> prim_file:close(Fd); + Error -> Error + end + end); +append_file(File, _, Suffix) -> case with_fhc_handle(2, fun () -> file:copy(File, {[File, Suffix], [append]}) end) of -- cgit v1.2.1 -- cgit v1.2.1 From 8118ab1eaf1c80758b4204cae85c81ff38ab598b Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 22 Jun 2012 18:18:05 +0100 Subject: Backport 7ccc2df0536d (Another fix to bug25005) --- scripts/rabbitmq-server.bat | 4 ++-- scripts/rabbitmq-service.bat | 5 ++++- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index 0123ed24..d8e52db7 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -86,8 +86,8 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_ENABLED_PLUGINS_FILE=!RABBITMQ_BASE!\enabled_plugins ) -if "!RABBITMQ_PLUGINS_DIR!"=="" ( - set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins +if "!RABBITMQ_PLUGINS_DIR!"=="" ( + set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins ) set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin diff --git a/scripts/rabbitmq-service.bat b/scripts/rabbitmq-service.bat index 9e274840..e64732a1 100755 --- a/scripts/rabbitmq-service.bat +++ b/scripts/rabbitmq-service.bat @@ -154,7 +154,10 @@ if "!RABBITMQ_ENABLED_PLUGINS_FILE!"=="" ( set RABBITMQ_ENABLED_PLUGINS_FILE=!RABBITMQ_BASE!\enabled_plugins ) -set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins +if "!RABBITMQ_PLUGINS_DIR!"=="" ( + set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins +) + set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin "!ERLANG_HOME!\bin\erl.exe" ^ -- cgit v1.2.1 From 4a2bb15124e09d62eaac6423c5c2f215416cb47d Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 25 Jul 2012 12:37:31 +0100 Subject: allow atoms as keys of proplists in set_parameters --- src/rabbit_runtime_parameters.erl | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/src/rabbit_runtime_parameters.erl b/src/rabbit_runtime_parameters.erl index 3a54e8f6..e2c46014 100644 --- a/src/rabbit_runtime_parameters.erl +++ b/src/rabbit_runtime_parameters.erl @@ -200,7 +200,7 @@ parse(Src0) -> {ok, Scanned, _} -> case erl_parse:parse_term(Scanned) of {ok, Parsed} -> - {ok, Parsed}; + {ok, convert_atoms(Parsed)}; {error, E} -> {errors, [{"Could not parse value: ~s", [format_parse_error(E)]}]} @@ -209,6 +209,14 @@ parse(Src0) -> {errors, [{"Could not scan value: ~s", [format_parse_error(E)]}]} end. + +%% Convert atom keys to binary for easier insertion. `latin1' is used as +%% encoding given that the binary literals will use that. +convert_atoms(L) when is_list(L) -> [convert_atoms(T) || T <- L]; +convert_atoms({K, V}) when is_atom(K) -> {atom_to_binary(K, latin1), + convert_atoms(V)}; +convert_atoms(T) -> T. + format_parse_error({_Line, Mod, Err}) -> lists:flatten(Mod:format_error(Err)). -- cgit v1.2.1 From 0913032f93991e33b6d017232cb87aec85fe14ba Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Fri, 27 Jul 2012 14:23:19 +0100 Subject: Backport ef69a3788285 (Merge of bug25052; Large numbers of queues -> 100% CPU usage) --- src/file_handle_cache.erl | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/src/file_handle_cache.erl b/src/file_handle_cache.erl index f3b4dbaf..13ee4249 100644 --- a/src/file_handle_cache.erl +++ b/src/file_handle_cache.erl @@ -374,11 +374,11 @@ sync(Ref) -> end). needs_sync(Ref) -> - with_handles( - [Ref], - fun ([#handle { is_dirty = false, write_buffer = [] }]) -> false; - ([_Handle]) -> true - end). + %% This must *not* use with_handles/2; see bug 25052 + case get({Ref, fhc_handle}) of + #handle { is_dirty = false, write_buffer = [] } -> false; + #handle {} -> true + end. position(Ref, NewOffset) -> with_flushed_handles( -- cgit v1.2.1 From d2a7370986d7cc62b775d7bb48067821cd3b63d8 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Fri, 27 Jul 2012 14:24:40 +0100 Subject: Backport b7afd23c2b28 (Merge of bug25059; bug 24939 broke on_node_down handler) --- src/rabbit_amqqueue.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index eca1017c..12cb543f 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -577,7 +577,7 @@ on_node_down(Node) -> slave_pids = []} <- mnesia:table(rabbit_queue), node(Pid) == Node andalso - not is_process_alive(Pid)])), + not rabbit_misc:is_process_alive(Pid)])), {Qs, Dels} = lists:unzip(QsDels), T = rabbit_binding:process_deletions( lists:foldl(fun rabbit_binding:combine_deletions/2, -- cgit v1.2.1 From 4006546389f82cb24296089da6e3fd601bda339e Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Fri, 27 Jul 2012 14:29:31 +0100 Subject: Backport f35d1734d176 (Merge of bug25023; rabbit_amqqueue:notify_down_all doesn't handle node failure) --- src/rabbit_amqqueue.erl | 19 ++++++++++++------- src/rabbit_amqqueue_process.erl | 2 +- src/rabbit_channel.erl | 2 +- src/rabbit_misc.erl | 27 ++++++++++++++------------- 4 files changed, 28 insertions(+), 22 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 12cb543f..c336aec3 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -650,13 +650,18 @@ qpids(Qs) -> lists:append([[QPid | SPids] || #amqqueue{pid = QPid, slave_pids = SPids} <- Qs]). safe_delegate_call_ok(F, Pids) -> - case delegate:invoke(Pids, fun (Pid) -> - rabbit_misc:with_exit_handler( - fun () -> ok end, - fun () -> F(Pid) end) - end) of - {_, []} -> ok; - {_, Bad} -> {error, Bad} + {_, Bads} = delegate:invoke(Pids, fun (Pid) -> + rabbit_misc:with_exit_handler( + fun () -> ok end, + fun () -> F(Pid) end) + end), + case lists:filter(fun ({_Pid, {exit, {R, _}, _}}) -> + rabbit_misc:is_abnormal_exit(R); + ({_Pid, _}) -> + false + end, Bads) of + [] -> ok; + Bads1 -> {error, Bads1} end. delegate_call(Pid, Msg) -> diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index f2833c26..988fa2ad 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -770,7 +770,7 @@ handle_queue_down(QPid, Reason, State = #q{queue_monitors = QMons, unconfirmed = UC}) -> case pmon:is_monitored(QPid, QMons) of false -> noreply(State); - true -> case rabbit_misc:is_abnormal_termination(Reason) of + true -> case rabbit_misc:is_abnormal_exit(Reason) of true -> {Lost, _UC1} = dtree:take_all(QPid, UC), QNameS = rabbit_misc:rs(qname(State)), rabbit_log:warning("DLQ ~p for ~s died with " diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 22c6a223..73b461cd 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -1119,7 +1119,7 @@ monitor_delivering_queue(false, QPid, State = #ch{queue_monitors = QMons, delivering_queues = sets:add_element(QPid, DQ)}. handle_publishing_queue_down(QPid, Reason, State = #ch{unconfirmed = UC}) -> - case rabbit_misc:is_abnormal_termination(Reason) of + case rabbit_misc:is_abnormal_exit(Reason) of true -> {MXs, UC1} = dtree:take_all(QPid, UC), send_nacks(MXs, State#ch{unconfirmed = UC1}); false -> {MXs, UC1} = dtree:take(QPid, UC), diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 0aacd654..88b110af 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -29,8 +29,8 @@ -export([enable_cover/1, report_cover/1]). -export([start_cover/1]). -export([confirm_to_sender/2]). --export([throw_on_error/2, with_exit_handler/2, filter_exit_map/2]). --export([is_abnormal_termination/1]). +-export([throw_on_error/2, with_exit_handler/2, is_abnormal_exit/1, + filter_exit_map/2]). -export([with_user/2, with_user_and_vhost/3]). -export([execute_mnesia_transaction/1]). -export([execute_mnesia_transaction/2]). @@ -62,6 +62,11 @@ -export([os_cmd/1]). -export([gb_sets_difference/2]). +%% Horrible macro to use in guards +-define(IS_BENIGN_EXIT(R), + R =:= noproc; R =:= noconnection; R =:= nodedown; R =:= normal; + R =:= shutdown). + %%---------------------------------------------------------------------------- -ifdef(use_specs). @@ -134,8 +139,8 @@ -spec(throw_on_error/2 :: (atom(), thunk(rabbit_types:error(any()) | {ok, A} | A)) -> A). -spec(with_exit_handler/2 :: (thunk(A), thunk(A)) -> A). +-spec(is_abnormal_exit/1 :: (any()) -> boolean()). -spec(filter_exit_map/2 :: (fun ((A) -> B), [A]) -> [B]). --spec(is_abnormal_termination/1 :: (any()) -> boolean()). -spec(with_user/2 :: (rabbit_types:username(), thunk(A)) -> A). -spec(with_user_and_vhost/3 :: (rabbit_types:username(), rabbit_types:vhost(), thunk(A)) @@ -395,13 +400,14 @@ with_exit_handler(Handler, Thunk) -> try Thunk() catch - exit:{R, _} when R =:= noproc; R =:= nodedown; - R =:= normal; R =:= shutdown -> - Handler(); - exit:{{R, _}, _} when R =:= nodedown; R =:= shutdown -> - Handler() + exit:{R, _} when ?IS_BENIGN_EXIT(R) -> Handler(); + exit:{{R, _}, _} when ?IS_BENIGN_EXIT(R) -> Handler() end. +is_abnormal_exit(R) when ?IS_BENIGN_EXIT(R) -> false; +is_abnormal_exit({R, _}) when ?IS_BENIGN_EXIT(R) -> false; +is_abnormal_exit(_) -> true. + filter_exit_map(F, L) -> Ref = make_ref(), lists:filter(fun (R) -> R =/= Ref end, @@ -409,11 +415,6 @@ filter_exit_map(F, L) -> fun () -> Ref end, fun () -> F(I) end) || I <- L]). -is_abnormal_termination(Reason) - when Reason =:= noproc; Reason =:= noconnection; - Reason =:= normal; Reason =:= shutdown -> false; -is_abnormal_termination({shutdown, _}) -> false; -is_abnormal_termination(_) -> true. with_user(Username, Thunk) -> fun () -> -- cgit v1.2.1 From bed6e91bbd2af7263690f94581517f2a3214a540 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Fri, 27 Jul 2012 15:24:06 +0100 Subject: Backport 20073c3da8c3 (Merge of bug24988; Repeated declare / delete of the same HA queue blows up) --- src/gm.erl | 10 ++++++---- src/rabbit_mirror_queue_coordinator.erl | 4 ++-- src/rabbit_mirror_queue_master.erl | 11 +++++++++++ src/rabbit_mirror_queue_slave.erl | 17 +++++++---------- 4 files changed, 26 insertions(+), 16 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index eb93e4c4..6e6aa852 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -562,7 +562,7 @@ handle_call(group_members, _From, reply(not_joined, State); handle_call(group_members, _From, State = #state { view = View }) -> - reply(alive_view_members(View), State); + reply(get_pids(alive_view_members(View)), State); handle_call({add_on_right, _NewMember}, _From, State = #state { members_state = undefined }) -> @@ -651,7 +651,7 @@ handle_info(flush, State) -> noreply( flush_broadcast_buffer(State #state { broadcast_timer = undefined })); -handle_info({'DOWN', MRef, process, _Pid, _Reason}, +handle_info({'DOWN', MRef, process, _Pid, Reason}, State = #state { self = Self, left = Left, right = Right, @@ -665,8 +665,10 @@ handle_info({'DOWN', MRef, process, _Pid, _Reason}, {_, {Member1, MRef}} -> Member1; _ -> undefined end, - case Member of - undefined -> + case {Member, Reason} of + {undefined, _} -> + noreply(State); + {_, {shutdown, ring_shutdown}} -> noreply(State); _ -> View1 = diff --git a/src/rabbit_mirror_queue_coordinator.erl b/src/rabbit_mirror_queue_coordinator.erl index 71e0507a..3e058793 100644 --- a/src/rabbit_mirror_queue_coordinator.erl +++ b/src/rabbit_mirror_queue_coordinator.erl @@ -405,9 +405,9 @@ handle_msg([CPid], _From, request_length = Msg) -> ok = gen_server2:cast(CPid, Msg); handle_msg([CPid], _From, {ensure_monitoring, _Pids} = Msg) -> ok = gen_server2:cast(CPid, Msg); -handle_msg([CPid], _From, {delete_and_terminate, Reason} = Msg) -> +handle_msg([CPid], _From, {delete_and_terminate, _Reason} = Msg) -> ok = gen_server2:cast(CPid, Msg), - {stop, Reason}; + {stop, {shutdown, ring_shutdown}}; handle_msg([_CPid], _From, _Msg) -> ok. diff --git a/src/rabbit_mirror_queue_master.erl b/src/rabbit_mirror_queue_master.erl index 4e71cc43..750bcd56 100644 --- a/src/rabbit_mirror_queue_master.erl +++ b/src/rabbit_mirror_queue_master.erl @@ -127,10 +127,21 @@ terminate(Reason, delete_and_terminate(Reason, State = #state { gm = GM, backing_queue = BQ, backing_queue_state = BQS }) -> + Slaves = [Pid || Pid <- gm:group_members(GM), node(Pid) =/= node()], + MRefs = [erlang:monitor(process, S) || S <- Slaves], ok = gm:broadcast(GM, {delete_and_terminate, Reason}), + monitor_wait(MRefs), State #state { backing_queue_state = BQ:delete_and_terminate(Reason, BQS), set_delivered = 0 }. +monitor_wait([]) -> + ok; +monitor_wait([MRef | MRefs]) -> + receive({'DOWN', MRef, process, _Pid, _Info}) -> + ok + end, + monitor_wait(MRefs). + purge(State = #state { gm = GM, backing_queue = BQ, backing_queue_state = BQS }) -> diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index e412fbbc..03fafc3e 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -351,20 +351,17 @@ handle_msg([_SPid], _From, {ensure_monitoring, _Pid}) -> ok; handle_msg([SPid], _From, {process_death, Pid}) -> inform_deaths(SPid, [Pid]); +handle_msg([CPid], _From, {delete_and_terminate, _Reason} = Msg) -> + ok = gen_server2:cast(CPid, {gm, Msg}), + {stop, {shutdown, ring_shutdown}}; handle_msg([SPid], _From, Msg) -> ok = gen_server2:cast(SPid, {gm, Msg}). inform_deaths(SPid, Deaths) -> - rabbit_misc:with_exit_handler( - fun () -> {stop, normal} end, - fun () -> - case gen_server2:call(SPid, {gm_deaths, Deaths}, infinity) of - ok -> - ok; - {promote, CPid} -> - {become, rabbit_mirror_queue_coordinator, [CPid]} - end - end). + case gen_server2:call(SPid, {gm_deaths, Deaths}, infinity) of + ok -> ok; + {promote, CPid} -> {become, rabbit_mirror_queue_coordinator, [CPid]} + end. %% --------------------------------------------------------------------------- %% Others -- cgit v1.2.1 From 994e99d1b457c14212dc78b0152e4b7c19402919 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Fri, 27 Jul 2012 15:27:16 +0100 Subject: Backport 3206053052fa (Merge of bug24942; delays in handling slave down causes errors on mirror queue operations) --- src/rabbit_mirror_queue_misc.erl | 48 +++++++++++++++++++++++++++------------ src/rabbit_mirror_queue_slave.erl | 44 ++++++++++++++++++++++++----------- 2 files changed, 65 insertions(+), 27 deletions(-) diff --git a/src/rabbit_mirror_queue_misc.erl b/src/rabbit_mirror_queue_misc.erl index 180677fe..ba62a734 100644 --- a/src/rabbit_mirror_queue_misc.erl +++ b/src/rabbit_mirror_queue_misc.erl @@ -62,7 +62,9 @@ remove_from_queue(QueueName, DeadPids) -> slave_pids = SPids }] -> [QPid1 | SPids1] = Alive = [Pid || Pid <- [QPid | SPids], - not lists:member(node(Pid), DeadNodes)], + not lists:member(node(Pid), + DeadNodes) orelse + rabbit_misc:is_process_alive(Pid)], case {{QPid, SPids}, {QPid1, SPids1}} of {Same, Same} -> {ok, QPid1, []}; @@ -134,22 +136,40 @@ add_mirror(Queue, MirrorNode) -> Queue, fun (#amqqueue { name = Name, pid = QPid, slave_pids = SPids } = Q) -> case [Pid || Pid <- [QPid | SPids], node(Pid) =:= MirrorNode] of - [] -> case rabbit_mirror_queue_slave_sup:start_child( - MirrorNode, [Q]) of - {ok, undefined} -> %% Already running - ok; - {ok, SPid} -> - rabbit_log:info( - "Adding mirror of ~s on node ~p: ~p~n", - [rabbit_misc:rs(Name), MirrorNode, SPid]), - ok; - Other -> - Other - end; - [_] -> {error, {queue_already_mirrored_on_node, MirrorNode}} + [] -> + start_child(Name, MirrorNode, Q); + [SPid] -> + case rabbit_misc:is_process_alive(SPid) of + true -> + {error,{queue_already_mirrored_on_node, + MirrorNode}}; + false -> + start_child(Name, MirrorNode, Q) + end end end). +start_child(Name, MirrorNode, Q) -> + case rabbit_mirror_queue_slave_sup:start_child(MirrorNode, [Q]) of + {ok, undefined} -> + %% this means the mirror process was + %% already running on the given node. + ok; + {ok, SPid} -> + rabbit_log:info("Adding mirror of ~s on node ~p: ~p~n", + [rabbit_misc:rs(Name), MirrorNode, SPid]), + ok; + {error, {{stale_master_pid, StalePid}, _}} -> + rabbit_log:warning("Detected stale HA master while adding " + "mirror of ~s on node ~p: ~p~n", + [rabbit_misc:rs(Name), MirrorNode, StalePid]), + ok; + {error, {{duplicate_live_master, _}=Err, _}} -> + throw(Err); + Other -> + Other + end. + if_mirrored_queue(Queue, Fun) -> rabbit_amqqueue:with( Queue, fun (#amqqueue { arguments = Args } = Q) -> diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index 03fafc3e..d6811b2f 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -101,19 +101,10 @@ info(QPid) -> init(#amqqueue { name = QueueName } = Q) -> Self = self(), Node = node(), - case rabbit_misc:execute_mnesia_transaction( - fun () -> - [Q1 = #amqqueue { pid = QPid, slave_pids = MPids }] = - mnesia:read({rabbit_queue, QueueName}), - case [Pid || Pid <- [QPid | MPids], node(Pid) =:= Node] of - [] -> MPids1 = MPids ++ [Self], - ok = rabbit_amqqueue:store_queue( - Q1 #amqqueue { slave_pids = MPids1 }), - {new, QPid}; - [SPid] -> true = rabbit_misc:is_process_alive(SPid), - existing - end - end) of + case rabbit_misc:execute_mnesia_transaction(fun() -> + init_it(Self, Node, + QueueName) + end) of {new, MPid} -> process_flag(trap_exit, true), %% amqqueue_process traps exits too. {ok, GM} = gm:start_link(QueueName, ?MODULE, [self()]), @@ -150,10 +141,37 @@ init(#amqqueue { name = QueueName } = Q) -> {ok, State, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}; + {stale, StalePid} -> + {stop, {stale_master_pid, StalePid}}; + duplicate_live_master -> + {stop, {duplicate_live_master, Node}}; existing -> ignore end. +init_it(Self, Node, QueueName) -> + [Q1 = #amqqueue { pid = QPid, slave_pids = MPids }] = + mnesia:read({rabbit_queue, QueueName}), + case [Pid || Pid <- [QPid | MPids], node(Pid) =:= Node] of + [] -> + MPids1 = MPids ++ [Self], + ok = rabbit_amqqueue:store_queue(Q1#amqqueue{slave_pids=MPids1}), + {new, QPid}; + [QPid] -> + case rabbit_misc:is_process_alive(QPid) of + true -> duplicate_live_master; + false -> {stale, QPid} + end; + [SPid] -> + case rabbit_misc:is_process_alive(SPid) of + true -> existing; + false -> MPids1 = (MPids -- [SPid]) ++ [Self], + ok = rabbit_amqqueue:store_queue( + Q1#amqqueue{ slave_pids = MPids1 }), + {new, QPid} + end + end. + handle_call({deliver, Delivery = #delivery { immediate = true }}, From, State) -> %% It is safe to reply 'false' here even if a) we've not seen the -- cgit v1.2.1 From f711ad80282293147ffdf2897bd0544485c8bc9a Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Fri, 27 Jul 2012 15:28:58 +0100 Subject: Backport 8cd791f3d0af (Merge of bug25035; Windows installer should copy .erlang.cookie more accurately) --- packaging/windows-exe/rabbitmq_nsi.in | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/packaging/windows-exe/rabbitmq_nsi.in b/packaging/windows-exe/rabbitmq_nsi.in index 91510991..f5257040 100644 --- a/packaging/windows-exe/rabbitmq_nsi.in +++ b/packaging/windows-exe/rabbitmq_nsi.in @@ -101,7 +101,9 @@ Section "RabbitMQ Service" RabbitService ExpandEnvStrings $0 %COMSPEC% ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" install' ExecWait '"$0" /C "$INSTDIR\rabbitmq_server-%%VERSION%%\sbin\rabbitmq-service.bat" start' - CopyFiles "$WINDIR\.erlang.cookie" "$PROFILE\.erlang.cookie" + ReadEnvStr $1 "HOMEDRIVE" + ReadEnvStr $2 "HOMEPATH" + CopyFiles "$WINDIR\.erlang.cookie" "$1$2\.erlang.cookie" SectionEnd ;-------------------------------- @@ -234,4 +236,4 @@ Function findErlang System::Call 'Kernel32::SetEnvironmentVariableA(t, t) i("ERLANG_HOME", "$0").r0' ${EndIf} -FunctionEnd \ No newline at end of file +FunctionEnd -- cgit v1.2.1 From 02ded3f92984f95babee1f3e91b92d6f1bd1e5c1 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Fri, 27 Jul 2012 15:32:41 +0100 Subject: Backport e6512fc065d7 (Merge of bug24720; per-queue CPU cost of HA queues, even when idle) --- src/rabbit_mirror_queue_coordinator.erl | 13 +------------ src/rabbit_mirror_queue_slave.erl | 13 ++++++++++--- 2 files changed, 11 insertions(+), 15 deletions(-) diff --git a/src/rabbit_mirror_queue_coordinator.erl b/src/rabbit_mirror_queue_coordinator.erl index 3e058793..10debb0b 100644 --- a/src/rabbit_mirror_queue_coordinator.erl +++ b/src/rabbit_mirror_queue_coordinator.erl @@ -36,8 +36,6 @@ length_fun }). --define(ONE_SECOND, 1000). - -ifdef(use_specs). -spec(start_link/4 :: (rabbit_types:amqqueue(), pid() | 'undefined', @@ -325,7 +323,6 @@ init([#amqqueue { name = QueueName } = Q, GM, DeathFun, LengthFun]) -> true = link(GM), GM end, - ensure_gm_heartbeat(), {ok, #state { q = Q, gm = GM1, monitors = pmon:new(), @@ -359,11 +356,6 @@ handle_cast({ensure_monitoring, Pids}, State = #state { monitors = Mons }) -> handle_cast({delete_and_terminate, Reason}, State) -> {stop, Reason, State}. -handle_info(send_gm_heartbeat, State = #state { gm = GM }) -> - gm:broadcast(GM, heartbeat), - ensure_gm_heartbeat(), - noreply(State); - handle_info({'DOWN', _MonitorRef, process, Pid, _Reason}, State = #state { monitors = Mons, death_fun = DeathFun }) -> @@ -399,7 +391,7 @@ members_changed([_CPid], _Births, []) -> members_changed([CPid], _Births, Deaths) -> ok = gen_server2:cast(CPid, {gm_deaths, Deaths}). -handle_msg([_CPid], _From, heartbeat) -> +handle_msg([_CPid], _From, master_changed) -> ok; handle_msg([CPid], _From, request_length = Msg) -> ok = gen_server2:cast(CPid, Msg); @@ -420,6 +412,3 @@ noreply(State) -> reply(Reply, State) -> {reply, Reply, State, hibernate}. - -ensure_gm_heartbeat() -> - erlang:send_after(?ONE_SECOND, self(), send_gm_heartbeat). diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index d6811b2f..c4ae307c 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -217,7 +217,12 @@ handle_call({gm_deaths, Deaths}, From, %% master has changed to not us. gen_server2:reply(From, ok), erlang:monitor(process, Pid), - ok = gm:broadcast(GM, heartbeat), + %% GM is lazy. So we know of the death of the + %% slave since it is a neighbour of ours, but + %% until a message is sent, not all members will + %% know. That might include the new master. So + %% broadcast a no-op message to wake everyone up. + ok = gm:broadcast(GM, master_changed), noreply(State #state { master_pid = Pid }) end end; @@ -359,7 +364,7 @@ members_changed([_SPid], _Births, []) -> members_changed([SPid], _Births, Deaths) -> inform_deaths(SPid, Deaths). -handle_msg([_SPid], _From, heartbeat) -> +handle_msg([_SPid], _From, master_changed) -> ok; handle_msg([_SPid], _From, request_length) -> %% This is only of value to the master @@ -470,7 +475,9 @@ promote_me(From, #state { q = Q = #amqqueue { name = QName }, rabbit_mirror_queue_master:length_fun()), true = unlink(GM), gen_server2:reply(From, {promote, CPid}), - ok = gm:confirmed_broadcast(GM, heartbeat), + %% TODO this has been in here since the beginning, but it's not + %% obvious if it is needed. Investigate... + ok = gm:confirmed_broadcast(GM, master_changed), %% Everything that we're monitoring, we need to ensure our new %% coordinator is monitoring. -- cgit v1.2.1 From ddd77afc1e83aeeba4c442f002726456fa58338d Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Fri, 27 Jul 2012 15:40:46 +0100 Subject: Backport a695bdca8969 (Merge of bug24912; i18n: rabbitmqctl errors rendered with ~p; garbles non-ASCII chars) --- src/rabbit_control.erl | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/rabbit_control.erl b/src/rabbit_control.erl index 573ed6a3..86b1bc2b 100644 --- a/src/rabbit_control.erl +++ b/src/rabbit_control.erl @@ -102,6 +102,11 @@ start() -> {'EXIT', {badarg, _}} -> print_error("invalid parameter: ~p", [Args]), usage(); + {error, {Problem, Reason}} when is_atom(Problem); is_binary(Reason) -> + %% We handle this common case specially to avoid ~p since + %% that has i18n issues + print_error("~s: ~s", [Problem, Reason]), + rabbit_misc:quit(2); {error, Reason} -> print_error("~p", [Reason]), rabbit_misc:quit(2); -- cgit v1.2.1 From 61bfe667fd89ca84d015b8304ed41819ac2a8701 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 1 Aug 2012 06:56:51 -0400 Subject: Release 2.8.5 changelog update --- packaging/RPMS/Fedora/rabbitmq-server.spec | 3 +++ packaging/debs/Debian/debian/changelog | 6 ++++++ 2 files changed, 9 insertions(+) diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec index 4ed07644..e9871b28 100644 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ b/packaging/RPMS/Fedora/rabbitmq-server.spec @@ -121,6 +121,9 @@ done rm -rf %{buildroot} %changelog +* Wed Aug 1 2012 tim@rabbitmq.com 2.8.5-1 +- New Upstream Release + * Thu Jun 21 2012 simon@rabbitmq.com 2.8.3-1 - New Upstream Release diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog index a730fb71..2c9069d6 100644 --- a/packaging/debs/Debian/debian/changelog +++ b/packaging/debs/Debian/debian/changelog @@ -1,3 +1,9 @@ +rabbitmq-server (2.8.5-1) unstable; urgency=low + + * New Upstream Release + + -- Tim Watson Wed, 01 Aug 2012 04:33:36 -0400 + rabbitmq-server (2.8.3-1) unstable; urgency=low * New Upstream Release -- cgit v1.2.1 -- cgit v1.2.1 From 003a0f715f3d639d964a5223dcdf47c98fcd3711 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Fri, 10 Aug 2012 13:05:51 +0100 Subject: make unclustering work for ram nodes - leave the cluster properly when force=false - disconnect from nodes we know about when force=true --- src/rabbit_mnesia.erl | 28 ++++++++++++++++++---------- 1 file changed, 18 insertions(+), 10 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 5a971246..a92a92bc 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -738,34 +738,42 @@ reset(Force) -> false -> ok end, Node = node(), - Nodes = all_clustered_nodes() -- [Node], + ConfigNodes = read_cluster_nodes_config(), case Force of - true -> ok; + true -> + %% If Node is a ram node, all_clustered_nodes() returns + %% just that when mnesia isn't running. So we also include + %% the the next best thing - the nodes from the config. + disconnect_nodes( + lists:usort(all_clustered_nodes() ++ ConfigNodes) -- [Node]); false -> ensure_mnesia_dir(), start_mnesia(), - RunningNodes = + {Nodes, RunningNodes} = try %% Force=true here so that reset still works when clustered %% with a node which is down - ok = init_db(read_cluster_nodes_config(), true), - running_clustered_nodes() -- [Node] + ok = init_db(ConfigNodes, true), + {all_clustered_nodes() -- [Node], + running_clustered_nodes() -- [Node]} after stop_mnesia() end, leave_cluster(Nodes, RunningNodes), rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) + cannot_delete_schema), + disconnect_nodes(Nodes) end, - %% We need to make sure that we don't end up in a distributed - %% Erlang system with nodes while not being in an Mnesia cluster - %% with them. We don't handle that well. - [erlang:disconnect_node(N) || N <- Nodes], ok = delete_cluster_nodes_config(), %% remove persisted messages and any other garbage we find ok = rabbit_file:recursive_delete(filelib:wildcard(dir() ++ "/*")), ok. +%% We need to make sure that we don't end up in a distributed Erlang +%% system with nodes while not being in an Mnesia cluster with +%% them. We don't handle that well. +disconnect_nodes(Nodes) -> [erlang:disconnect_node(N) || N <- Nodes]. + leave_cluster([], _) -> ok; leave_cluster(Nodes, RunningNodes) -> %% find at least one running cluster node and instruct it to -- cgit v1.2.1 From 3ae88950fdadad18d604e3d22d43846f194cce94 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Tue, 14 Aug 2012 05:15:22 -0400 Subject: Backport e7f1cd7f26dd (Merge of bug25083; vm_memory_high_watermark reported incorrectly) --- src/vm_memory_monitor.erl | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl index fb184d1a..6ffed609 100644 --- a/src/vm_memory_monitor.erl +++ b/src/vm_memory_monitor.erl @@ -49,6 +49,7 @@ -record(state, {total_memory, memory_limit, + memory_fraction, timeout, timer, alarmed @@ -110,7 +111,7 @@ init([MemFraction]) -> {ok, set_mem_limits(State, MemFraction)}. handle_call(get_vm_memory_high_watermark, _From, State) -> - {reply, State#state.memory_limit / State#state.total_memory, State}; + {reply, State#state.memory_fraction, State}; handle_call({set_vm_memory_high_watermark, MemFraction}, _From, State) -> State1 = set_mem_limits(State, MemFraction), @@ -171,8 +172,9 @@ set_mem_limits(State, MemFraction) -> MemLim = get_mem_limit(MemFraction, TotalMemory), error_logger:info_msg("Memory limit set to ~pMB of ~pMB total.~n", [trunc(MemLim/?ONE_MB), trunc(TotalMemory/?ONE_MB)]), - internal_update(State #state { total_memory = TotalMemory, - memory_limit = MemLim }). + internal_update(State #state { total_memory = TotalMemory, + memory_limit = MemLim, + memory_fraction = MemFraction}). internal_update(State = #state { memory_limit = MemLimit, alarmed = Alarmed}) -> -- cgit v1.2.1 From b68b1f91598084862b2e0b109c43522e4dca6b85 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Tue, 14 Aug 2012 05:15:56 -0400 Subject: Backport 5e80230e2225 (Merge of bug25094; unclustering ram nodes broken) --- src/rabbit_mnesia.erl | 26 ++++++++++++----------- src/rabbit_tests.erl | 58 ++++++++++++++++++++++++++++++++------------------- 2 files changed, 51 insertions(+), 33 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index c714d3a7..73ea02c9 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -726,40 +726,42 @@ reset(Force) -> end]), ensure_mnesia_not_running(), case not Force andalso is_clustered() andalso - is_only_disc_node(node(), false) + is_only_disc_node(node(), false) of true -> log_both("no other disc nodes running"); false -> ok end, - Node = node(), - Nodes = all_clustered_nodes() -- [Node], case Force of - true -> ok; + true -> + disconnect_nodes(nodes()); false -> ensure_mnesia_dir(), start_mnesia(), - RunningNodes = + {Nodes, RunningNodes} = try %% Force=true here so that reset still works when clustered %% with a node which is down ok = init_db(read_cluster_nodes_config(), true), - running_clustered_nodes() -- [Node] + {all_clustered_nodes() -- [node()], + running_clustered_nodes() -- [node()]} after stop_mnesia() end, leave_cluster(Nodes, RunningNodes), - rabbit_misc:ensure_ok(mnesia:delete_schema([Node]), - cannot_delete_schema) + rabbit_misc:ensure_ok(mnesia:delete_schema([node()]), + cannot_delete_schema), + disconnect_nodes(Nodes) end, - %% We need to make sure that we don't end up in a distributed - %% Erlang system with nodes while not being in an Mnesia cluster - %% with them. We don't handle that well. - [erlang:disconnect_node(N) || N <- Nodes], ok = delete_cluster_nodes_config(), %% remove persisted messages and any other garbage we find ok = rabbit_file:recursive_delete(filelib:wildcard(dir() ++ "/*")), ok. +%% We need to make sure that we don't end up in a distributed Erlang +%% system with nodes while not being in an Mnesia cluster with +%% them. We don't handle that well. +disconnect_nodes(Nodes) -> [erlang:disconnect_node(N) || N <- Nodes]. + leave_cluster([], _) -> ok; leave_cluster(Nodes, RunningNodes) -> %% find at least one running cluster node and instruct it to diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 04ee6ef2..91465cae 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -72,12 +72,10 @@ maybe_run_cluster_dependent_tests() -> run_cluster_dependent_tests(SecondaryNode) -> SecondaryNodeS = atom_to_list(SecondaryNode), - cover:stop(SecondaryNode), ok = control_action(stop_app, []), - ok = control_action(reset, []), + ok = safe_reset(), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), - cover:start(SecondaryNode), ok = control_action(start_app, SecondaryNode, [], []), io:format("Running cluster dependent tests with node ~p~n", [SecondaryNode]), @@ -908,7 +906,7 @@ test_cluster_management2(SecondaryNode) -> ok = assert_ram_node(), %% join cluster as a ram node - ok = control_action(reset, []), + ok = safe_reset(), ok = control_action(force_cluster, [SecondaryNodeS, "invalid1@invalid"]), ok = control_action(start_app, []), ok = control_action(stop_app, []), @@ -965,29 +963,30 @@ test_cluster_management2(SecondaryNode) -> ok = assert_disc_node(), %% turn a disk node into a ram node - ok = control_action(reset, []), + %% + %% can't use safe_reset here since for some reason nodes()==[] and + %% yet w/o stopping coverage things break + with_suspended_cover( + [SecondaryNode], fun () -> ok = control_action(reset, []) end), ok = control_action(cluster, [SecondaryNodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), ok = assert_ram_node(), %% NB: this will log an inconsistent_database error, which is harmless - %% Turning cover on / off is OK even if we're not in general using cover, - %% it just turns the engine on / off, doesn't actually log anything. - cover:stop([SecondaryNode]), - true = disconnect_node(SecondaryNode), - pong = net_adm:ping(SecondaryNode), - cover:start([SecondaryNode]), + with_suspended_cover( + [SecondaryNode], fun () -> + true = disconnect_node(SecondaryNode), + pong = net_adm:ping(SecondaryNode) + end), %% leaving a cluster as a ram node - ok = control_action(reset, []), + ok = safe_reset(), %% ...and as a disk node ok = control_action(cluster, [SecondaryNodeS, NodeS]), ok = control_action(start_app, []), ok = control_action(stop_app, []), - cover:stop(SecondaryNode), - ok = control_action(reset, []), - cover:start(SecondaryNode), + ok = safe_reset(), %% attempt to leave cluster when no other node is alive ok = control_action(cluster, [SecondaryNodeS, NodeS]), @@ -1002,22 +1001,39 @@ test_cluster_management2(SecondaryNode) -> control_action(cluster, [SecondaryNodeS]), %% leave system clustered, with the secondary node as a ram node - ok = control_action(force_reset, []), + with_suspended_cover( + [SecondaryNode], fun () -> ok = control_action(force_reset, []) end), ok = control_action(start_app, []), %% Yes, this is rather ugly. But since we're a clustered Mnesia %% node and we're telling another clustered node to reset itself, %% we will get disconnected half way through causing a %% badrpc. This never happens in real life since rabbitmqctl is - %% not a clustered Mnesia node. - cover:stop(SecondaryNode), - {badrpc, nodedown} = control_action(force_reset, SecondaryNode, [], []), - pong = net_adm:ping(SecondaryNode), - cover:start(SecondaryNode), + %% not a clustered Mnesia node and is a hidden node. + with_suspended_cover( + [SecondaryNode], + fun () -> + {badrpc, nodedown} = + control_action(force_reset, SecondaryNode, [], []), + pong = net_adm:ping(SecondaryNode) + end), ok = control_action(cluster, SecondaryNode, [NodeS], []), ok = control_action(start_app, SecondaryNode, [], []), passed. +%% 'cover' does not cope at all well with nodes disconnecting, which +%% happens as part of reset. So we turn it off temporarily. That is ok +%% even if we're not in general using cover, it just turns the engine +%% on / off and doesn't log anything. +safe_reset() -> with_suspended_cover( + nodes(), fun () -> control_action(reset, []) end). + +with_suspended_cover(Nodes, Fun) -> + cover:stop(Nodes), + Res = Fun(), + cover:start(Nodes), + Res. + test_user_management() -> %% lots if stuff that should fail -- cgit v1.2.1 From bbcf82436695bd4521b84bfe72126597b6d3be36 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Tue, 14 Aug 2012 05:45:09 -0400 Subject: Backport (Merge of bug25097; messages expire too late in absence of consumers) --- src/rabbit_amqqueue_process.erl | 60 ++++++++++++++++++++++++-------------- src/rabbit_backing_queue.erl | 6 ++-- src/rabbit_backing_queue_qc.erl | 2 +- src/rabbit_mirror_queue_master.erl | 6 ++-- src/rabbit_tests.erl | 14 ++++----- src/rabbit_variable_queue.erl | 8 ++--- 6 files changed, 57 insertions(+), 39 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 988fa2ad..15bff5b3 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -47,6 +47,7 @@ msg_id_to_channel, ttl, ttl_timer_ref, + ttl_timer_expiry, senders, publish_seqno, unconfirmed, @@ -559,7 +560,8 @@ deliver_or_enqueue(Delivery = #delivery{message = Message, maybe_record_confirm_message(Confirm, State1), Props = message_properties(Confirm, State2), BQS1 = BQ:publish(Message, Props, SenderPid, BQS), - ensure_ttl_timer(State2#q{backing_queue_state = BQS1}) + ensure_ttl_timer(Props#message_properties.expiry, + State2#q{backing_queue_state = BQS1}) end. requeue_and_run(AckTags, State = #q{backing_queue = BQ}) -> @@ -699,28 +701,42 @@ drop_expired_messages(State = #q{backing_queue_state = BQS, backing_queue = BQ }) -> Now = now_micros(), DLXFun = dead_letter_fun(expired, State), - ExpirePred = fun (#message_properties{expiry = Expiry}) -> Now > Expiry end, - case DLXFun of - undefined -> {undefined, BQS1} = BQ:dropwhile(ExpirePred, false, BQS), - BQS1; - _ -> {Msgs, BQS1} = BQ:dropwhile(ExpirePred, true, BQS), - lists:foreach( - fun({Msg, AckTag}) -> DLXFun(Msg, AckTag) end, Msgs), - BQS1 - end, - ensure_ttl_timer(State#q{backing_queue_state = BQS1}). - -ensure_ttl_timer(State = #q{backing_queue = BQ, - backing_queue_state = BQS, - ttl = TTL, - ttl_timer_ref = undefined}) - when TTL =/= undefined -> - case BQ:is_empty(BQS) of - true -> State; - false -> TRef = erlang:send_after(TTL, self(), drop_expired), - State#q{ttl_timer_ref = TRef} + ExpirePred = fun (#message_properties{expiry = Exp}) -> Now >= Exp end, + {Props, BQS1} = + case DLXFun of + undefined -> + {Next, undefined, BQS2} = BQ:dropwhile(ExpirePred, false, BQS), + {Next, BQS2}; + _ -> + {Next, Msgs, BQS2} = BQ:dropwhile(ExpirePred, true, BQS), + lists:foreach(fun({Msg, AckTag}) -> DLXFun(Msg, AckTag) end, + Msgs), + {Next, BQS2} + end, + ensure_ttl_timer(case Props of + undefined -> undefined; + #message_properties{expiry = Exp} -> Exp + end, State#q{backing_queue_state = BQS1}). + +ensure_ttl_timer(undefined, State) -> + State; +ensure_ttl_timer(_Expiry, State = #q{ttl = undefined}) -> + State; +ensure_ttl_timer(Expiry, State = #q{ttl_timer_ref = undefined}) -> + After = (case Expiry - now_micros() of + V when V > 0 -> V + 999; %% always fire later + _ -> 0 + end) div 1000, + TRef = erlang:send_after(After, self(), drop_expired), + State#q{ttl_timer_ref = TRef, ttl_timer_expiry = Expiry}; +ensure_ttl_timer(Expiry, State = #q{ttl_timer_ref = TRef, + ttl_timer_expiry = TExpiry}) + when Expiry + 1000 < TExpiry -> + case erlang:cancel_timer(TRef) of + false -> State; + _ -> ensure_ttl_timer(Expiry, State#q{ttl_timer_ref = undefined}) end; -ensure_ttl_timer(State) -> +ensure_ttl_timer(_Expiry, State) -> State. ack_if_no_dlx(AckTags, State = #q{dlx = undefined, diff --git a/src/rabbit_backing_queue.erl b/src/rabbit_backing_queue.erl index 28c57bb0..0f0afd10 100644 --- a/src/rabbit_backing_queue.erl +++ b/src/rabbit_backing_queue.erl @@ -123,9 +123,11 @@ %% necessitate an ack or not. If they do, the function returns a list of %% messages with the respective acktags. -callback dropwhile(msg_pred(), true, state()) - -> {[{rabbit_types:basic_message(), ack()}], state()}; + -> {rabbit_types:message_properties() | undefined, + [{rabbit_types:basic_message(), ack()}], state()}; (msg_pred(), false, state()) - -> {undefined, state()}. + -> {rabbit_types:message_properties() | undefined, + undefined, state()}. %% Produce the next message. -callback fetch(true, state()) -> {fetch_result(ack()), state()}; diff --git a/src/rabbit_backing_queue_qc.erl b/src/rabbit_backing_queue_qc.erl index a84800c0..e40d9b29 100644 --- a/src/rabbit_backing_queue_qc.erl +++ b/src/rabbit_backing_queue_qc.erl @@ -268,7 +268,7 @@ next_state(S, Res, {call, ?BQMOD, drain_confirmed, _Args}) -> S#state{bqstate = BQ1}; next_state(S, Res, {call, ?BQMOD, dropwhile, _Args}) -> - BQ = {call, erlang, element, [2, Res]}, + BQ = {call, erlang, element, [3, Res]}, #state{messages = Messages} = S, Msgs1 = drop_messages(Messages), S#state{bqstate = BQ, len = gb_trees:size(Msgs1), messages = Msgs1}; diff --git a/src/rabbit_mirror_queue_master.erl b/src/rabbit_mirror_queue_master.erl index 750bcd56..477449e3 100644 --- a/src/rabbit_mirror_queue_master.erl +++ b/src/rabbit_mirror_queue_master.erl @@ -185,13 +185,13 @@ dropwhile(Pred, AckRequired, set_delivered = SetDelivered, backing_queue_state = BQS }) -> Len = BQ:len(BQS), - {Msgs, BQS1} = BQ:dropwhile(Pred, AckRequired, BQS), + {Next, Msgs, BQS1} = BQ:dropwhile(Pred, AckRequired, BQS), Len1 = BQ:len(BQS1), ok = gm:broadcast(GM, {set_length, Len1, AckRequired}), Dropped = Len - Len1, SetDelivered1 = lists:max([0, SetDelivered - Dropped]), - {Msgs, State #state { backing_queue_state = BQS1, - set_delivered = SetDelivered1 } }. + {Next, Msgs, State #state { backing_queue_state = BQS1, + set_delivered = SetDelivered1 } }. drain_confirmed(State = #state { backing_queue = BQ, backing_queue_state = BQS, diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 91465cae..692f0dd9 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -2404,10 +2404,10 @@ test_dropwhile(VQ0) -> fun (N, Props) -> Props#message_properties{expiry = N} end, VQ0), %% drop the first 5 messages - {undefined, VQ2} = rabbit_variable_queue:dropwhile( - fun(#message_properties { expiry = Expiry }) -> - Expiry =< 5 - end, false, VQ1), + {_, undefined, VQ2} = rabbit_variable_queue:dropwhile( + fun(#message_properties { expiry = Expiry }) -> + Expiry =< 5 + end, false, VQ1), %% fetch five now VQ3 = lists:foldl(fun (_N, VQN) -> @@ -2424,11 +2424,11 @@ test_dropwhile(VQ0) -> test_dropwhile_varying_ram_duration(VQ0) -> VQ1 = variable_queue_publish(false, 1, VQ0), VQ2 = rabbit_variable_queue:set_ram_duration_target(0, VQ1), - {undefined, VQ3} = rabbit_variable_queue:dropwhile( - fun(_) -> false end, false, VQ2), + {_, undefined, VQ3} = rabbit_variable_queue:dropwhile( + fun(_) -> false end, false, VQ2), VQ4 = rabbit_variable_queue:set_ram_duration_target(infinity, VQ3), VQ5 = variable_queue_publish(false, 1, VQ4), - {undefined, VQ6} = + {_, undefined, VQ6} = rabbit_variable_queue:dropwhile(fun(_) -> false end, false, VQ5), VQ6. diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index 209e5252..2517efd1 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -581,12 +581,12 @@ drain_confirmed(State = #vqstate { confirmed = C }) -> dropwhile(Pred, AckRequired, State) -> dropwhile(Pred, AckRequired, State, []). dropwhile(Pred, AckRequired, State, Msgs) -> - End = fun(S) when AckRequired -> {lists:reverse(Msgs), S}; - (S) -> {undefined, S} + End = fun(Next, S) when AckRequired -> {Next, lists:reverse(Msgs), S}; + (Next, S) -> {Next, undefined, S} end, case queue_out(State) of {empty, State1} -> - End(a(State1)); + End(undefined, a(State1)); {{value, MsgStatus = #msg_status { msg_props = MsgProps }}, State1} -> case {Pred(MsgProps), AckRequired} of {true, true} -> @@ -598,7 +598,7 @@ dropwhile(Pred, AckRequired, State, Msgs) -> {_, State2} = internal_fetch(false, MsgStatus, State1), dropwhile(Pred, AckRequired, State2, undefined); {false, _} -> - End(a(in_r(MsgStatus, State1))) + End(MsgProps, a(in_r(MsgStatus, State1))) end end. -- cgit v1.2.1 From bddd1216efb4fa0582f51d0cc2d1488621d2240e Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 15 Aug 2012 12:59:02 +0100 Subject: Backport bug25087 (prelaunch and rabbitmqctl nodename insufficiently random on Windows) --- scripts/rabbitmq-plugins.bat | 2 +- scripts/rabbitmq-server.bat | 2 +- scripts/rabbitmqctl.bat | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/scripts/rabbitmq-plugins.bat b/scripts/rabbitmq-plugins.bat index 194d3705..9d7762bd 100755 --- a/scripts/rabbitmq-plugins.bat +++ b/scripts/rabbitmq-plugins.bat @@ -47,7 +47,7 @@ if "!RABBITMQ_PLUGINS_DIR!"=="" ( set RABBITMQ_PLUGINS_DIR=!TDP0!..\plugins ) -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden -sname rabbitmq-plugins!RANDOM! -s rabbit_plugins -enabled_plugins_file "!RABBITMQ_ENABLED_PLUGINS_FILE!" -plugins_dist_dir "!RABBITMQ_PLUGINS_DIR:\=/!" -extra !STAR! +"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden -sname rabbitmq-plugins!RANDOM!!TIME:~9! -s rabbit_plugins -enabled_plugins_file "!RABBITMQ_ENABLED_PLUGINS_FILE!" -plugins_dist_dir "!RABBITMQ_PLUGINS_DIR:\=/!" -extra !STAR! endlocal endlocal diff --git a/scripts/rabbitmq-server.bat b/scripts/rabbitmq-server.bat index d8e52db7..e40b88f2 100755 --- a/scripts/rabbitmq-server.bat +++ b/scripts/rabbitmq-server.bat @@ -96,7 +96,7 @@ set RABBITMQ_EBIN_ROOT=!TDP0!..\ebin -pa "!RABBITMQ_EBIN_ROOT!" ^ -noinput -hidden ^ -s rabbit_prelaunch ^ --sname rabbitmqprelaunch!RANDOM! ^ +-sname rabbitmqprelaunch!RANDOM!!TIME:~9! ^ -extra "!RABBITMQ_ENABLED_PLUGINS_FILE:\=/!" ^ "!RABBITMQ_PLUGINS_DIR:\=/!" ^ "!RABBITMQ_PLUGINS_EXPAND_DIR:\=/!" ^ diff --git a/scripts/rabbitmqctl.bat b/scripts/rabbitmqctl.bat index f37fae48..be990834 100755 --- a/scripts/rabbitmqctl.bat +++ b/scripts/rabbitmqctl.bat @@ -43,7 +43,7 @@ if not exist "!ERLANG_HOME!\bin\erl.exe" ( exit /B ) -"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! +"!ERLANG_HOME!\bin\erl.exe" -pa "!TDP0!..\ebin" -noinput -hidden !RABBITMQ_CTL_ERL_ARGS! -sname rabbitmqctl!RANDOM!!TIME:~9! -s rabbit_control -nodename !RABBITMQ_NODENAME! -extra !STAR! endlocal endlocal -- cgit v1.2.1 From d25b810b3be9186c9e7886a33888780e938ca099 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Fri, 17 Aug 2012 06:13:48 -0400 Subject: Backport bb5d4fa690b4 (Merge of bug25105; Macports build runs steps in parallel -- fails dependency generation) --- packaging/macports/Portfile.in | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/packaging/macports/Portfile.in b/packaging/macports/Portfile.in index e461e49e..82c1fb0c 100644 --- a/packaging/macports/Portfile.in +++ b/packaging/macports/Portfile.in @@ -59,7 +59,7 @@ set mandest ${destroot}${prefix}/share/man use_configure no -use_parallel_build yes +use_parallel_build no build.env-append HOME=${workpath} -- cgit v1.2.1 From a1bddbe3f3f63e21f564098bf4d0db5be7731338 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 20 Aug 2012 15:14:09 +0100 Subject: Backport 533141bf7a26 (Merge of bug25104; Bug 24942 broke detection of mirror removal at clean shutdown) --- src/rabbit_mirror_queue_misc.erl | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/src/rabbit_mirror_queue_misc.erl b/src/rabbit_mirror_queue_misc.erl index ba62a734..3901acb0 100644 --- a/src/rabbit_mirror_queue_misc.erl +++ b/src/rabbit_mirror_queue_misc.erl @@ -62,9 +62,7 @@ remove_from_queue(QueueName, DeadPids) -> slave_pids = SPids }] -> [QPid1 | SPids1] = Alive = [Pid || Pid <- [QPid | SPids], - not lists:member(node(Pid), - DeadNodes) orelse - rabbit_misc:is_process_alive(Pid)], + not lists:member(node(Pid), DeadNodes)], case {{QPid, SPids}, {QPid1, SPids1}} of {Same, Same} -> {ok, QPid1, []}; -- cgit v1.2.1 -- cgit v1.2.1 -- cgit v1.2.1 From 4be1b64bf4338186f81843fae32097229ea8b4c8 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Wed, 22 Aug 2012 12:19:24 +0100 Subject: Remove extra tag for rabbitmq_v2_8_6 --- packaging/RPMS/Fedora/rabbitmq-server.spec | 3 +++ packaging/debs/Debian/debian/changelog | 6 ++++++ 2 files changed, 9 insertions(+) diff --git a/packaging/RPMS/Fedora/rabbitmq-server.spec b/packaging/RPMS/Fedora/rabbitmq-server.spec index e9871b28..d6b6b70c 100644 --- a/packaging/RPMS/Fedora/rabbitmq-server.spec +++ b/packaging/RPMS/Fedora/rabbitmq-server.spec @@ -121,6 +121,9 @@ done rm -rf %{buildroot} %changelog +* Wed Aug 22 2012 emile@rabbitmq.com 2.8.6-1 +- New Upstream Release + * Wed Aug 1 2012 tim@rabbitmq.com 2.8.5-1 - New Upstream Release diff --git a/packaging/debs/Debian/debian/changelog b/packaging/debs/Debian/debian/changelog index 2c9069d6..c0b58ce6 100644 --- a/packaging/debs/Debian/debian/changelog +++ b/packaging/debs/Debian/debian/changelog @@ -1,3 +1,9 @@ +rabbitmq-server (2.8.6-1) unstable; urgency=low + + * New Upstream Release + + -- Emile Joubert Wed, 22 Aug 2012 11:30:58 +0100 + rabbitmq-server (2.8.5-1) unstable; urgency=low * New Upstream Release -- cgit v1.2.1 From 92123c50e9f0336d6325a41d5d136a1e98aec406 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Fri, 7 Sep 2012 10:52:50 +0100 Subject: check that the ttl values are less than what `erlang:send_after' likes Since it's an extension to begin with, I think it's OK to limit it. I doubt anyone will ever want a ttl of more than 50 days, and if they really complain we can fix it in the future. We should probably document it in the website. --- src/rabbit_amqqueue.erl | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 461b25eb..22b28327 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -40,6 +40,8 @@ -define(INTEGER_ARG_TYPES, [byte, short, signedint, long]). +-define(MAX_EXPIRY_TIMER, 4294967295). + -define(MORE_CONSUMER_CREDIT_AFTER, 50). -define(FAILOVER_WAIT_MILLIS, 100). @@ -397,16 +399,18 @@ check_int_arg({Type, _}, _) -> check_positive_int_arg({Type, Val}, Args) -> case check_int_arg({Type, Val}, Args) of - ok when Val > 0 -> ok; - ok -> {error, {value_zero_or_less, Val}}; - Error -> Error + ok when Val > ?MAX_EXPIRY_TIMER -> {error, {value_too_big, Val}}; + ok when Val > 0 -> ok; + ok -> {error, {value_zero_or_less, Val}}; + Error -> Error end. check_non_neg_int_arg({Type, Val}, Args) -> case check_int_arg({Type, Val}, Args) of - ok when Val >= 0 -> ok; - ok -> {error, {value_less_than_zero, Val}}; - Error -> Error + ok when Val > ?MAX_EXPIRY_TIMER -> {error, {value_too_big, Val}}; + ok when Val > 0 -> ok; + ok -> {error, {value_zero_or_less, Val}}; + Error -> Error end. check_dlxrk_arg({longstr, _}, Args) -> -- cgit v1.2.1 From 20c3915417d2e90add33a076284688eb32cf21c5 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Sat, 8 Sep 2012 16:59:14 +0100 Subject: fix `check_non_neg_int_arg/2', had screwed up while copypasting --- src/rabbit_amqqueue.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index ab0fc47b..0a35ca0e 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -406,8 +406,8 @@ check_positive_int_arg({Type, Val}, Args) -> check_non_neg_int_arg({Type, Val}, Args) -> case check_int_arg({Type, Val}, Args) of ok when Val > ?MAX_EXPIRY_TIMER -> {error, {value_too_big, Val}}; - ok when Val > 0 -> ok; - ok -> {error, {value_zero_or_less, Val}}; + ok when Val >= 0 -> ok; + ok -> {error, {value_less_than_zero, Val}}; Error -> Error end. -- cgit v1.2.1 From 4b83c8ab513f8ad525891d49e1cdaa90aa57cc52 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Sat, 8 Sep 2012 16:59:31 +0100 Subject: check positivity of expiration --- src/rabbit_basic.erl | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 12e71431..9960d3b8 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -238,7 +238,8 @@ parse_expiration(#'P_basic'{expiration = Expiration}) -> {error, no_integer} = E -> E; {N, ""} when N > ?MAX_EXPIRY_TIMER -> {error, {value_too_big, N}}; - {N, ""} -> {ok, N}; + {N, ""} when N > 0 -> {ok, N}; + {N, ""} -> {error, value_zero_or_less}; {_, S } -> {error, {leftover_string, S}} end end. -- cgit v1.2.1 From ca6ac54cee5679f3efdfb4853dcb8783dcf5b29a Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 14 Sep 2012 15:27:31 +0100 Subject: Get slaves to emit statistics on memory use and idling. --- src/rabbit_mirror_queue_slave.erl | 45 +++++++++++++++++++++++++++++++++------ 1 file changed, 39 insertions(+), 6 deletions(-) diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index 964c3e24..279005c2 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -56,6 +56,11 @@ is_synchronised ]). +-define(STATISTICS_KEYS, + [pid, + memory + ]). + -define(INFO_KEYS, ?CREATION_EVENT_KEYS). -define(SYNC_INTERVAL, 25). %% milliseconds @@ -77,7 +82,8 @@ msg_id_status, known_senders, - synchronised + synchronised, + stats_timer }). start_link(Q) -> gen_server2:start_link(?MODULE, Q, []). @@ -134,7 +140,10 @@ init(#amqqueue { name = QueueName } = Q) -> rabbit_event:notify(queue_slave_created, infos(?CREATION_EVENT_KEYS, State)), ok = gm:broadcast(GM, request_length), - {ok, State, hibernate, + State1 = rabbit_event:init_stats_timer(State, #state.stats_timer), + rabbit_event:if_enabled(State1, #state.stats_timer, + fun() -> emit_stats(State1) end), + {ok, State1, hibernate, {backoff, ?HIBERNATE_AFTER_MIN, ?HIBERNATE_AFTER_MIN, ?DESIRED_HIBERNATE}}; {stale, StalePid} -> @@ -265,6 +274,12 @@ handle_info(sync_timeout, State) -> handle_info(timeout, State) -> noreply(backing_queue_timeout(State)); +handle_info(emit_stats, State) -> + %% Do not invoke noreply as it would see no timer and create a new one. + emit_stats(State), + State1 = rabbit_event:reset_stats_timer(State, #state.stats_timer), + {noreply, State1, hibernate}; + handle_info({'DOWN', _MonitorRef, process, MPid, _Reason}, State = #state { gm = GM, master_pid = MPid }) -> ok = gm:broadcast(GM, {process_death, MPid}), @@ -319,7 +334,12 @@ handle_pre_hibernate(State = #state { backing_queue = BQ, rabbit_memory_monitor:report_ram_duration(self(), RamDuration), BQS2 = BQ:set_ram_duration_target(DesiredDuration, BQS1), BQS3 = BQ:handle_pre_hibernate(BQS2), - {hibernate, stop_rate_timer(State #state { backing_queue_state = BQS3 })}. + rabbit_event:if_enabled( + State, #state.stats_timer, + fun () -> emit_stats(State, [{idle_since, now()}]) end), + State1 = rabbit_event:stop_stats_timer( + State#state{backing_queue_state = BQS3}, #state.stats_timer), + {hibernate, stop_rate_timer(State1 #state { backing_queue_state = BQS3 })}. prioritise_call(Msg, _From, _State) -> case Msg of @@ -386,8 +406,17 @@ i(pid, _State) -> self(); i(name, #state { q = #amqqueue { name = Name } }) -> Name; i(master_pid, #state { master_pid = MPid }) -> MPid; i(is_synchronised, #state { synchronised = Synchronised }) -> Synchronised; +i(memory, _State) -> {memory, M} = process_info(self(), memory), + M; i(Item, _State) -> throw({bad_argument, Item}). +emit_stats(State) -> + emit_stats(State, []). + +emit_stats(State, Extra) -> + rabbit_event:notify( + queue_slave_stats, Extra ++ infos(?STATISTICS_KEYS, State)). + bq_init(BQ, Q, Recover) -> Self = self(), BQ:init(Q, Recover, @@ -569,9 +598,10 @@ reply(Reply, State) -> next_state(State = #state{backing_queue = BQ, backing_queue_state = BQS}) -> {MsgIds, BQS1} = BQ:drain_confirmed(BQS), - State1 = ensure_rate_timer( - confirm_messages(MsgIds, State #state { - backing_queue_state = BQS1 })), + State1 = ensure_stats_timer( + ensure_rate_timer( + confirm_messages(MsgIds, State #state { + backing_queue_state = BQS1 }))), case BQ:needs_timeout(BQS1) of false -> {stop_sync_timer(State1), hibernate }; idle -> {stop_sync_timer(State1), ?SYNC_INTERVAL}; @@ -610,6 +640,9 @@ stop_rate_timer(State = #state { rate_timer_ref = TRef }) -> erlang:cancel_timer(TRef), State #state { rate_timer_ref = undefined }. +ensure_stats_timer(State) -> + rabbit_event:ensure_stats_timer(State, #state.stats_timer, emit_stats). + ensure_monitoring(ChPid, State = #state { known_senders = KS }) -> State #state { known_senders = pmon:monitor(ChPid, KS) }. -- cgit v1.2.1 From 0f091c341c104da57f3519c2d9a19c7bb5f7cc8c Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 21 Sep 2012 12:01:40 +0100 Subject: Config option to select IPv6 address preference --- ebin/rabbit_app.in | 1 + 1 file changed, 1 insertion(+) diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in index 42331b22..c92b4de6 100644 --- a/ebin/rabbit_app.in +++ b/ebin/rabbit_app.in @@ -40,6 +40,7 @@ {trace_vhosts, []}, {log_levels, [{connection, info}]}, {ssl_cert_login_from, distinguished_name}, + {prefer_ipv6_addresses, true}, {tcp_listen_options, [binary, {packet, raw}, {reuseaddr, true}, -- cgit v1.2.1 From c7d452e47b6e032b7d8c2c24eb17e5590d5475ff Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 21 Sep 2012 12:35:27 +0100 Subject: Backed out changeset 312acc335935 --- ebin/rabbit_app.in | 1 - 1 file changed, 1 deletion(-) diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in index c92b4de6..42331b22 100644 --- a/ebin/rabbit_app.in +++ b/ebin/rabbit_app.in @@ -40,7 +40,6 @@ {trace_vhosts, []}, {log_levels, [{connection, info}]}, {ssl_cert_login_from, distinguished_name}, - {prefer_ipv6_addresses, true}, {tcp_listen_options, [binary, {packet, raw}, {reuseaddr, true}, -- cgit v1.2.1 From d4201baf4e65159d7ac630eb048288cc5d1d6a52 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 3 Oct 2012 12:43:13 +0100 Subject: sanitize the contents of `cluster_nodes' --- src/rabbit_mnesia.erl | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index bfecf06a..aea455b4 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -110,6 +110,15 @@ init() -> init_from_config() -> {ok, {TryNodes, NodeType}} = application:get_env(rabbit, cluster_nodes), + {TryNodes, NodeType} = + case application:get_env(rabbit, cluster_nodes) of + {ok, {TryNodes, disc} = C} when is_list(TryNodes) -> + C; + {ok, {TryNodes, ram } = C} when is_list(TryNodes) -> + C; + _ -> + e(invalid_cluster_config) + end, case find_good_node(nodes_excl_me(TryNodes)) of {ok, Node} -> rabbit_log:info("Node '~p' selected for clustering from " @@ -840,4 +849,7 @@ error_description(removing_node_from_offline_node) -> "To remove a node remotely from an offline node, the node you're removing " "from must be a disc node and all the other nodes must be offline."; error_description(no_running_cluster_nodes) -> - "You cannot leave a cluster if no online nodes are present.". + "You cannot leave a cluster if no online nodes are present."; +error_description(invalid_cluster_config) -> + "Invalid or missing cluster configuration. Check the 'cluster_nodes' field " + "in your config file.". -- cgit v1.2.1 From 7092d3a02e018eb1e2eeef33da2f6ee531184a6e Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 31 Oct 2012 15:56:59 +0000 Subject: better error messages --- src/rabbit_command_assembler.erl | 30 ++++++++++++++++++++---------- 1 file changed, 20 insertions(+), 10 deletions(-) diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl index 4a280b99..4580f926 100644 --- a/src/rabbit_command_assembler.erl +++ b/src/rabbit_command_assembler.erl @@ -90,9 +90,13 @@ process({method, MethodName, FieldsBin}, {method, Protocol}) -> end catch exit:#amqp_error{} = Reason -> {error, Reason} end; -process(_Frame, {method, _Protocol}) -> +process({content_header, ClassId, _Weight, _BodySize, _PropertiesBin}, + {method, _Protocol}) -> unexpected_frame("expected method frame, " - "got non method frame instead", [], none); + "got content header for class ~w instead", [ClassId], none); +process({content_body, _FragmentBin}, {method, _Protocol}) -> + unexpected_frame("expected method frame, got content body instead", [], + none); process({content_header, ClassId, 0, 0, PropertiesBin}, {content_header, Method, ClassId, Protocol}) -> Content = empty_content(ClassId, PropertiesBin, Protocol), @@ -108,12 +112,13 @@ process({content_header, HeaderClassId, 0, _BodySize, _PropertiesBin}, [ClassId, HeaderClassId], Method); process({method, MethodName, _FieldsBin}, {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("received unexpected method frame for method ~w " - ", content header for class ~w expected", - [MethodName, ClassId], Method); -process(_Frame, {content_header, Method, ClassId, _Protocol}) -> unexpected_frame("expected content header for class ~w, " - "got non content header frame instead", [ClassId], Method); + "got method frame for method ~w instead", + [ClassId, MethodName], Method); +process({content_body, _FragmentBin}, + {content_header, Method, ClassId, _Protocol}) -> + unexpected_frame("expected content header for class ~w, " + "got content body instead", [ClassId], Method); process({content_body, FragmentBin}, {content_body, Method, RemainingSize, Content = #content{payload_fragments_rev = Fragments}, Protocol}) -> @@ -127,9 +132,14 @@ process({method, MethodName, _FieldsBin}, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> unexpected_frame("received unexpected method frame for method ~w" ", content body expected", [MethodName], Method); -process(_Frame, {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("expected content body, " - "got non content body frame instead", [], Method). +process({content_header, ClassId, _Weight, _BodySize, _PropertiesBin}, + {content_body, Method, _RemainingSize, _Content, _Protocol}) -> + unexpected_frame("expected content body, got content header for class " + "~w instead", [ClassId], Method); +process({method, MethodName, _FieldsBin}, + {content_body, Method, _RemainingSize, _Content, _Protocol}) -> + unexpected_frame("expected content body, got method frame for method " + "~w instead", [MethodName], Method). %%-------------------------------------------------------------------- -- cgit v1.2.1 From 84a5894ff553a82a6bb9c79aacf4c7ff11256316 Mon Sep 17 00:00:00 2001 From: Francesco Mazzoli Date: Wed, 31 Oct 2012 16:36:56 +0000 Subject: move most of the errors pretty printing in an helper --- src/rabbit_command_assembler.erl | 57 ++++++++++++++++++++-------------------- 1 file changed, 28 insertions(+), 29 deletions(-) diff --git a/src/rabbit_command_assembler.erl b/src/rabbit_command_assembler.erl index 4580f926..9bb1678e 100644 --- a/src/rabbit_command_assembler.erl +++ b/src/rabbit_command_assembler.erl @@ -90,13 +90,6 @@ process({method, MethodName, FieldsBin}, {method, Protocol}) -> end catch exit:#amqp_error{} = Reason -> {error, Reason} end; -process({content_header, ClassId, _Weight, _BodySize, _PropertiesBin}, - {method, _Protocol}) -> - unexpected_frame("expected method frame, " - "got content header for class ~w instead", [ClassId], none); -process({content_body, _FragmentBin}, {method, _Protocol}) -> - unexpected_frame("expected method frame, got content body instead", [], - none); process({content_header, ClassId, 0, 0, PropertiesBin}, {content_header, Method, ClassId, Protocol}) -> Content = empty_content(ClassId, PropertiesBin, Protocol), @@ -107,18 +100,9 @@ process({content_header, ClassId, 0, BodySize, PropertiesBin}, {ok, {content_body, Method, BodySize, Content, Protocol}}; process({content_header, HeaderClassId, 0, _BodySize, _PropertiesBin}, {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " + unexpected_frame("expected content header for class ~w; " "got one for class ~w instead", [ClassId, HeaderClassId], Method); -process({method, MethodName, _FieldsBin}, - {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got method frame for method ~w instead", - [ClassId, MethodName], Method); -process({content_body, _FragmentBin}, - {content_header, Method, ClassId, _Protocol}) -> - unexpected_frame("expected content header for class ~w, " - "got content body instead", [ClassId], Method); process({content_body, FragmentBin}, {content_body, Method, RemainingSize, Content = #content{payload_fragments_rev = Fragments}, Protocol}) -> @@ -128,18 +112,8 @@ process({content_body, FragmentBin}, 0 -> {ok, Method, NewContent, {method, Protocol}}; Sz -> {ok, {content_body, Method, Sz, NewContent, Protocol}} end; -process({method, MethodName, _FieldsBin}, - {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("received unexpected method frame for method ~w" - ", content body expected", [MethodName], Method); -process({content_header, ClassId, _Weight, _BodySize, _PropertiesBin}, - {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("expected content body, got content header for class " - "~w instead", [ClassId], Method); -process({method, MethodName, _FieldsBin}, - {content_body, Method, _RemainingSize, _Content, _Protocol}) -> - unexpected_frame("expected content body, got method frame for method " - "~w instead", [MethodName], Method). +process(Frame, State) -> + unexpected_frame_msg(Frame, State). %%-------------------------------------------------------------------- @@ -154,3 +128,28 @@ unexpected_frame(Format, Params, Method) when is_atom(Method) -> {error, rabbit_misc:amqp_error(unexpected_frame, Format, Params, Method)}; unexpected_frame(Format, Params, Method) -> unexpected_frame(Format, Params, rabbit_misc:method_record_type(Method)). + +unexpected_frame_msg(Frame, State) -> + {ExpectedFmt, ExpectedParams, Method0} = + case State of + {method, _} -> + {"expected method frame; ", [], none}; + {content_header, Method1, Class1, _} -> + {"expected content header frame for class ~w, method ~w; ", + [Class1, Method1], Method1}; + {content_body, Method1, BodySize1, Class1, _} -> + {"expected content body frame for class ~w, method ~w, of " + "size ~w; ", [Class1, Method1, BodySize1], Method1} + end, + {ReceivedFmt, ReceivedParams} = + case Frame of + {method, Method2, _} -> + {"got method frame for method ~w instead", [Method2]}; + {content_header, Class2, _, BodySize2, _} -> + {"got content header frame for class ~w expecting body of size " + "~w instead", [Class2, BodySize2]}; + {content_body, _} -> + {"got content body frame instead", []} + end, + unexpected_frame(ExpectedFmt ++ ReceivedFmt, + ExpectedParams ++ ReceivedParams, Method0). -- cgit v1.2.1 From 8875710133aafcfe82a48996381b8e6bc92ff6a0 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 14 Nov 2012 16:51:06 +0000 Subject: Identify connection / channel by name too. --- src/rabbit_channel.erl | 6 +++--- src/rabbit_reader.erl | 4 ++-- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 39ebc474..14c4c887 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -43,7 +43,7 @@ -define(MAX_PERMISSION_CACHE_SIZE, 12). -define(STATISTICS_KEYS, - [pid, + [name, transactional, confirm, consumer_count, @@ -55,8 +55,8 @@ client_flow_blocked]). -define(CREATION_EVENT_KEYS, - [pid, - name, + [name, + pid, connection, number, user, diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 928786e9..2701f56f 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -42,12 +42,12 @@ last_blocked_by, last_blocked_at, host, peer_host, port, peer_port}). --define(STATISTICS_KEYS, [pid, recv_oct, recv_cnt, send_oct, send_cnt, +-define(STATISTICS_KEYS, [name, recv_oct, recv_cnt, send_oct, send_cnt, send_pend, state, last_blocked_by, last_blocked_age, channels]). -define(CREATION_EVENT_KEYS, - [pid, name, port, peer_port, host, + [name, pid, port, peer_port, host, peer_host, ssl, peer_cert_subject, peer_cert_issuer, peer_cert_validity, auth_mechanism, ssl_protocol, ssl_key_exchange, ssl_cipher, ssl_hash, protocol, user, vhost, -- cgit v1.2.1 From c049aa470d798e0fd17d775f0283a997101aa0cf Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Tue, 20 Nov 2012 16:10:50 +0000 Subject: drop expired messages just after delivery --- src/rabbit_amqqueue_process.erl | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index abdbd24b..6198c939 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -485,9 +485,11 @@ deliver_msg_to_consumer(DeliverFun, {Stop, State1}. deliver_from_queue_deliver(AckRequired, State) -> - {{Message, IsDelivered, AckTag, Remaining}, State1} = + {{Message, IsDelivered, AckTag, _Remaining}, State1} = fetch(AckRequired, State), - {{Message, IsDelivered, AckTag}, 0 == Remaining, State1}. + State2 = #q{backing_queue = BQ, backing_queue_state = BQS} = + drop_expired_messages(State1), + {{Message, IsDelivered, AckTag}, BQ:len(BQS), State2}. confirm_messages([], State) -> State; -- cgit v1.2.1 From a72c7ee10815f9c6b1ef418237f8e16726a684c6 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 21 Nov 2012 13:00:07 +0000 Subject: it's Remaining (messages) not length --- src/rabbit_amqqueue_process.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 6198c939..63b6c897 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -489,7 +489,7 @@ deliver_from_queue_deliver(AckRequired, State) -> fetch(AckRequired, State), State2 = #q{backing_queue = BQ, backing_queue_state = BQS} = drop_expired_messages(State1), - {{Message, IsDelivered, AckTag}, BQ:len(BQS), State2}. + {{Message, IsDelivered, AckTag}, BQ:len(BQS) == 0, State2}. confirm_messages([], State) -> State; -- cgit v1.2.1 From c3e1eed018fe5323fd07d543d9c5a934ab301ead Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Wed, 21 Nov 2012 13:49:46 +0000 Subject: use backing_queue:is_empty/1 --- src/rabbit_amqqueue_process.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 63b6c897..dc258fa6 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -489,7 +489,7 @@ deliver_from_queue_deliver(AckRequired, State) -> fetch(AckRequired, State), State2 = #q{backing_queue = BQ, backing_queue_state = BQS} = drop_expired_messages(State1), - {{Message, IsDelivered, AckTag}, BQ:len(BQS) == 0, State2}. + {{Message, IsDelivered, AckTag}, BQ:is_empty(BQS), State2}. confirm_messages([], State) -> State; -- cgit v1.2.1 From 111534f835e2623d3e40697dc9b3ac794bc430f9 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 7 Dec 2012 16:02:00 +0000 Subject: Tell dpkg-buildpackage to tell dpkg-genchanges to always include the source package in the .changes file. We need this for the apt repository to build correctly. Now dpkg-genchanges should include the source package when the Debian version is -0 or -1, but it has decided not to in some mysterious circumstances. This fixes the build. --- packaging/debs/Debian/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/packaging/debs/Debian/Makefile b/packaging/debs/Debian/Makefile index 1e4bf755..81f4a0cd 100644 --- a/packaging/debs/Debian/Makefile +++ b/packaging/debs/Debian/Makefile @@ -30,7 +30,7 @@ package: clean cat $(UNPACKED_DIR)/LICENSE >> $(UNPACKED_DIR)/debian/copyright echo "\n\nThe Debian packaging is (C) 2007-2012, VMware, Inc. and is licensed\nunder the MPL 1.1, see above.\n" >> $(UNPACKED_DIR)/debian/copyright UNOFFICIAL_RELEASE=$(UNOFFICIAL_RELEASE) VERSION=$(VERSION) ./check-changelog.sh rabbitmq-server $(UNPACKED_DIR) - cd $(UNPACKED_DIR); GNUPGHOME=$(GNUPG_PATH)/.gnupg dpkg-buildpackage -rfakeroot $(SIGNING) + cd $(UNPACKED_DIR); GNUPGHOME=$(GNUPG_PATH)/.gnupg dpkg-buildpackage -sa -rfakeroot $(SIGNING) rm -rf $(UNPACKED_DIR) clean: -- cgit v1.2.1 From 115b85caa1d282753662faa5082370f5aa3297e5 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 20 Dec 2012 12:55:44 +0000 Subject: Monitor channel writers in the reader, and don't send close-ok untill all the writers are gone too. --- src/rabbit_channel_sup.erl | 2 +- src/rabbit_reader.erl | 23 ++++++++++++++++------- 2 files changed, 17 insertions(+), 8 deletions(-) diff --git a/src/rabbit_channel_sup.erl b/src/rabbit_channel_sup.erl index 42459833..885791b9 100644 --- a/src/rabbit_channel_sup.erl +++ b/src/rabbit_channel_sup.erl @@ -61,7 +61,7 @@ start_link({tcp, Sock, Channel, FrameMax, ReaderPid, ConnName, Protocol, User, rabbit_limiter:make_token(LimiterPid)]}, intrinsic, ?MAX_WAIT, worker, [rabbit_channel]}), {ok, AState} = rabbit_command_assembler:init(Protocol), - {ok, SupPid, {ChannelPid, AState}}; + {ok, SupPid, {ChannelPid, AState, WriterPid}}; start_link({direct, Channel, ClientChannelPid, ConnPid, ConnName, Protocol, User, VHost, Capabilities, Collector}) -> {ok, SupPid} = supervisor2:start_link(?MODULE, direct), diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 928786e9..a09941fd 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -419,6 +419,8 @@ handle_dependent_exit(ChPid, Reason, State) -> case {channel_cleanup(ChPid), termination_kind(Reason)} of {undefined, uncontrolled} -> exit({abnormal_dependent_exit, ChPid, Reason}); + {writer, _Controlled} -> + maybe_close(control_throttle(State)); {_Channel, controlled} -> maybe_close(control_throttle(State)); {Channel, uncontrolled} -> @@ -466,7 +468,7 @@ wait_for_channel_termination(N, TimerRef) -> maybe_close(State = #v1{connection_state = closing, connection = #connection{protocol = Protocol}, sock = Sock}) -> - case all_channels() of + case all_channels() ++ all_channel_writers() of [] -> NewState = close_connection(State), ok = send_on_channel0(Sock, #'connection.close_ok'{}, Protocol), @@ -538,26 +540,33 @@ create_channel(Channel, State) -> user = User, vhost = VHost, capabilities = Capabilities}} = State, - {ok, _ChSupPid, {ChPid, AState}} = + {ok, _ChSupPid, {ChPid, AState, WriterPid}} = rabbit_channel_sup_sup:start_channel( ChanSupSup, {tcp, Sock, Channel, FrameMax, self(), Name, Protocol, User, VHost, Capabilities, Collector}), MRef = erlang:monitor(process, ChPid), + WMRef = erlang:monitor(process, WriterPid), put({ch_pid, ChPid}, {Channel, MRef}), + put({wr_pid, WriterPid}, WMRef), put({channel, Channel}, {ChPid, AState}), {ChPid, AState}. -channel_cleanup(ChPid) -> - case get({ch_pid, ChPid}) of - undefined -> undefined; - {Channel, MRef} -> credit_flow:peer_down(ChPid), +channel_cleanup(Pid) -> + case get({ch_pid, Pid}) of + undefined -> case get({wr_pid, Pid}) of + undefined -> undefined; + _MRef -> erase({wr_pid, Pid}), + writer + end; + {Channel, MRef} -> credit_flow:peer_down(Pid), erase({channel, Channel}), - erase({ch_pid, ChPid}), + erase({ch_pid, Pid}), erlang:demonitor(MRef, [flush]), Channel end. all_channels() -> [ChPid || {{ch_pid, ChPid}, _ChannelMRef} <- get()]. +all_channel_writers() -> [WrPid || {{wr_pid, WrPid}, _} <- get()]. %%-------------------------------------------------------------------------- -- cgit v1.2.1 From 534aaa608a1e4993b1a20c9fea73f45731570b91 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 21 Jan 2013 14:33:15 +0000 Subject: Remove knowledge of AMQP frames from the limiter. --- src/rabbit_amqqueue_process.erl | 4 +-- src/rabbit_channel.erl | 24 +++++++++++-- src/rabbit_limiter.erl | 78 +++++++++++++++++++---------------------- 3 files changed, 60 insertions(+), 46 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 918d1782..79386c2c 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -476,7 +476,7 @@ deliver_msg_to_consumer(DeliverFun, State = #q{q = #amqqueue{name = QName}, backing_queue = BQ, backing_queue_state = BQS}) -> - rabbit_limiter:record_cons_send(Limiter, ChPid, ConsumerTag, BQ:len(BQS)), + rabbit_limiter:record_cons_send(Limiter, ConsumerTag, BQ:len(BQS)), {{Message, IsDelivered, AckTag}, Stop, State1} = DeliverFun(AckRequired, State), rabbit_channel:deliver(ChPid, ConsumerTag, AckRequired, @@ -1345,7 +1345,7 @@ handle_cast({inform_limiter, ChPid, Msg}, backing_queue_state = BQS}) -> #cr{limiter = Lim, blocked_ctags = BCTags} = ch_record(ChPid), - {Unblock, Lim2} = rabbit_limiter:inform(Lim, ChPid, BQ:len(BQS), Msg), + {Unblock, Lim2} = rabbit_limiter:inform(Lim, BQ:len(BQS), Msg), noreply(possibly_unblock( State, ChPid, fun(C) -> C#cr{blocked_ctags = BCTags -- Unblock, limiter = Lim2} end)); diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 5ee030b1..7f11de53 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -715,7 +715,9 @@ handle_method(#'basic.consume'{queue = QueueNameBin, ok = rabbit_amqqueue:inform_limiter( Q, self(), {basic_credit, ActualConsumerTag, - Credit, Count, Drain, false}); + Credit, Count, Drain, + fun (_) -> ok end, + send_drained_fun(self())}); error -> ok end, @@ -1104,10 +1106,16 @@ handle_method(#'basic.credit'{consumer_tag = CTag, drain = Drain}, _, State = #ch{consumer_mapping = Consumers, credit_map = CMap}) -> + Self = self(), case dict:find(CTag, Consumers) of {ok, Q} -> ok = rabbit_amqqueue:inform_limiter( - Q, self(), - {basic_credit, CTag, Credit, Count, Drain, true}), + Q, Self, + {basic_credit, CTag, Credit, Count, Drain, + fun (Available) -> + send_command( + Self, + #'basic.credit_ok'{available = Available}) + end, send_drained_fun(self())}), {noreply, State}; error -> CMap2 = dict:store(CTag, {Credit, Count, Drain}, CMap), {reply, #'basic.credit_ok'{available = 0}, @@ -1468,6 +1476,16 @@ send_confirms(Cs, State) -> multiple = Multiple} end, State). +send_drained_fun(ChPid) -> + fun (CTag, Count) -> + send_command(ChPid, + #'basic.credit_state'{consumer_tag = CTag, + credit = 0, + count = Count, + available = 0, + drain = true}) + end. + coalesce_and_send(MsgSeqNos, MkMsgFun, State = #ch{writer_pid = WriterPid, unconfirmed = UC}) -> SMsgSeqNos = lists:usort(MsgSeqNos), diff --git a/src/rabbit_limiter.erl b/src/rabbit_limiter.erl index 57fd0c26..1e32e60e 100644 --- a/src/rabbit_limiter.erl +++ b/src/rabbit_limiter.erl @@ -24,16 +24,16 @@ -export([start_link/0, make_token/0, make_token/1, is_enabled/1, enable/2, disable/1]). --export([limit/2, can_ch_send/3, can_cons_send/2, record_cons_send/4, +-export([limit/2, can_ch_send/3, can_cons_send/2, record_cons_send/3, ack/2, register/2, unregister/2]). -export([get_limit/1, block/1, unblock/1, is_blocked/1]). --export([inform/4, forget_consumer/2, copy_queue_state/2]). +-export([inform/3, forget_consumer/2, copy_queue_state/2]). -import(rabbit_misc, [serial_add/2, serial_diff/2]). %%---------------------------------------------------------------------------- --record(token, {pid, enabled, q_state}). +-record(token, {pid, enabled, credits, send_drained}). -ifdef(use_specs). @@ -50,6 +50,8 @@ -spec(limit/2 :: (token(), non_neg_integer()) -> 'ok' | {'disabled', token()}). -spec(can_ch_send/3 :: (token(), pid(), boolean()) -> boolean()). -spec(can_cons_send/2 :: (token(), rabbit_types:ctag()) -> boolean()). +-spec(record_cons_send/3 :: (token(), rabbit_types:ctag(), non_neg_integer()) + -> boolean()). -spec(ack/2 :: (token(), non_neg_integer()) -> 'ok'). -spec(register/2 :: (token(), pid()) -> 'ok'). -spec(unregister/2 :: (token(), pid()) -> 'ok'). @@ -57,7 +59,7 @@ -spec(block/1 :: (token()) -> 'ok'). -spec(unblock/1 :: (token()) -> 'ok' | {'disabled', token()}). -spec(is_blocked/1 :: (token()) -> boolean()). --spec(inform/4 :: (token(), pid(), non_neg_integer(), any()) -> +-spec(inform/3 :: (token(), non_neg_integer(), any()) -> {[rabbit_types:ctag()], token()}). -spec(forget_consumer/2 :: (token(), rabbit_types:ctag()) -> token()). -spec(copy_queue_state/2 :: (token(), token()) -> token()). @@ -85,7 +87,7 @@ start_link() -> gen_server2:start_link(?MODULE, [], []). make_token() -> make_token(undefined). make_token(Pid) -> #token{pid = Pid, enabled = false, - q_state = dict:new()}. + credits = dict:new()}. is_enabled(#token{enabled = Enabled}) -> Enabled. @@ -111,15 +113,17 @@ can_ch_send(#token{pid = Pid, enabled = true}, QPid, AckRequired) -> can_ch_send(_, _, _) -> true. -can_cons_send(#token{q_state = Credits}, CTag) -> +can_cons_send(#token{credits = Credits}, CTag) -> case dict:find(CTag, Credits) of {ok, #credit{credit = C}} when C > 0 -> true; {ok, #credit{}} -> false; error -> true end. -record_cons_send(#token{q_state = QState} = Token, ChPid, CTag, Len) -> - Token#token{q_state = record_send_q(CTag, Len, ChPid, QState)}. +record_cons_send(#token{send_drained = SendDrained, + credits = Credits} = Token, CTag, Len) -> + Token#token{credits = record_send_q( + CTag, Len, Credits, SendDrained)}. %% Let the limiter know that the channel has received some acks from a %% consumer @@ -143,22 +147,19 @@ unblock(Limiter) -> is_blocked(Limiter) -> maybe_call(Limiter, is_blocked, false). -inform(Limiter = #token{q_state = Credits}, - ChPid, Len, {basic_credit, CTag, Credit, Count, Drain, Reply}) -> +inform(Limiter = #token{credits = Credits}, + Len, {basic_credit, CTag, Credit, Count, Drain, Reply, SendDrained} = M) -> {Unblock, Credits2} = update_credit( - CTag, Len, ChPid, Credit, Count, Drain, Credits), - case Reply of - true -> rabbit_channel:send_command( - ChPid, #'basic.credit_ok'{available = Len}); - false -> ok - end, - {Unblock, Limiter#token{q_state = Credits2}}. + CTag, Len, Credit, Count, Drain, Credits, + SendDrained), + Reply(Len), + {Unblock, Limiter#token{credits = Credits2, send_drained = SendDrained}}. -forget_consumer(Limiter = #token{q_state = Credits}, CTag) -> - Limiter#token{q_state = dict:erase(CTag, Credits)}. +forget_consumer(Limiter = #token{credits = Credits}, CTag) -> + Limiter#token{credits = dict:erase(CTag, Credits)}. -copy_queue_state(#token{q_state = Credits}, Token) -> - Token#token{q_state = Credits}. +copy_queue_state(#token{credits = Credits}, Token) -> + Token#token{credits = Credits}. %%---------------------------------------------------------------------------- %% Queue-local code @@ -167,48 +168,43 @@ copy_queue_state(#token{q_state = Credits}, Token) -> %% We want to do all the AMQP 1.0-ish link level credit calculations in the %% queue (to do them elsewhere introduces a ton of races). However, it's a big %% chunk of code that is conceptually very linked to the limiter concept. So -%% we get the queue to hold a bit of state for us (#token.q_state), and -%% maintain a fiction that the limiter is making the decisions... +%% we get the queue to hold a bit of state for us (#token.credits, +%% #token.send_drained), and maintain a fiction that the limiter is making the +%% decisions... -record_send_q(CTag, Len, ChPid, Credits) -> +record_send_q(CTag, Len, Credits, SendDrained) -> case dict:find(CTag, Credits) of {ok, Cred} -> - decr_credit(CTag, Len, ChPid, Cred, Credits); + decr_credit(CTag, Len, Cred, Credits, SendDrained); error -> Credits end. -decr_credit(CTag, Len, ChPid, Cred, Credits) -> +decr_credit(CTag, Len, Cred, Credits, SendDrained) -> #credit{credit = Credit, count = Count, drain = Drain} = Cred, - {NewCredit, NewCount} = maybe_drain(Len - 1, Drain, CTag, ChPid, - Credit - 1, serial_add(Count, 1)), + {NewCredit, NewCount} = maybe_drain( + Len - 1, Drain, CTag, + Credit - 1, serial_add(Count, 1), SendDrained), write_credit(CTag, NewCredit, NewCount, Drain, Credits). -maybe_drain(0, true, CTag, ChPid, Credit, Count) -> +maybe_drain(0, true, CTag, Credit, Count, SendDrained) -> %% Drain, so advance til credit = 0 NewCount = serial_add(Count, Credit - 2), - send_drained(ChPid, CTag, NewCount), + SendDrained(CTag, NewCount), {0, NewCount}; %% Magic reduction to 0 -maybe_drain(_, _, _, _, Credit, Count) -> +maybe_drain(_, _, _, Credit, Count, _SendDrained) -> {Credit, Count}. -send_drained(ChPid, CTag, Count) -> - rabbit_channel:send_command(ChPid, - #'basic.credit_state'{consumer_tag = CTag, - credit = 0, - count = Count, - available = 0, - drain = true}). - -update_credit(CTag, Len, ChPid, Credit, Count0, Drain, Credits) -> +update_credit(CTag, Len, Credit, Count0, Drain, Credits, SendDrained) -> Count = case dict:find(CTag, Credits) of %% Use our count if we can, more accurate {ok, #credit{ count = LocalCount }} -> LocalCount; %% But if this is new, take it from the adapter _ -> Count0 end, - {NewCredit, NewCount} = maybe_drain(Len, Drain, CTag, ChPid, Credit, Count), + {NewCredit, NewCount} = maybe_drain(Len, Drain, CTag, Credit, Count, + SendDrained), NewCredits = write_credit(CTag, NewCredit, NewCount, Drain, Credits), case NewCredit > 0 of true -> {[CTag], NewCredits}; -- cgit v1.2.1 From 0a9890e23241adae55950e906e1db3cbf1f5aaf2 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 14 Feb 2013 12:22:02 +0000 Subject: If we try to stop while starting, wait until we have stopped starting before stopping. --- src/rabbit.erl | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index c004c489..855b2ee1 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -355,6 +355,7 @@ handle_app_error(App, Reason) -> throw({could_not_start, App, Reason}). start_it(StartFun) -> + register(rabbit_boot, self()), try StartFun() catch @@ -364,10 +365,17 @@ start_it(StartFun) -> boot_error(Reason, erlang:get_stacktrace()) after %% give the error loggers some time to catch up - timer:sleep(100) + timer:sleep(100), + %% In the boot/0 case the process exits - but in the start/0 + %% case it is some random RPC server and does not. + unregister(rabbit_boot) end. stop() -> + case whereis(rabbit_boot) of + undefined -> ok; + _ -> await_startup() + end, rabbit_log:info("Stopping RabbitMQ~n"), ok = app_utils:stop_applications(app_shutdown_order()). -- cgit v1.2.1 From 520d4384e019dc30212d6b9dcf413d1478266f03 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 1 Mar 2013 17:35:46 +0000 Subject: Allow subscribing to node down events from the node monitor. --- src/rabbit_node_monitor.erl | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl index 71c2c80a..7411b3d6 100644 --- a/src/rabbit_node_monitor.erl +++ b/src/rabbit_node_monitor.erl @@ -24,7 +24,7 @@ write_cluster_status/1, read_cluster_status/0, update_cluster_status/0, reset_cluster_status/0]). -export([notify_node_up/0, notify_joined_cluster/0, notify_left_cluster/1]). --export([partitions/0]). +-export([partitions/0, subscribe/1]). %% gen_server callbacks -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, @@ -33,7 +33,7 @@ -define(SERVER, ?MODULE). -define(RABBIT_UP_RPC_TIMEOUT, 2000). --record(state, {monitors, partitions}). +-record(state, {monitors, partitions, subscribers}). %%---------------------------------------------------------------------------- @@ -54,6 +54,7 @@ -spec(notify_left_cluster/1 :: (node()) -> 'ok'). -spec(partitions/0 :: () -> {node(), [node()]}). +-spec(subscribe/1 :: (pid()) -> 'ok'). -endif. @@ -179,6 +180,9 @@ notify_left_cluster(Node) -> partitions() -> gen_server:call(?SERVER, partitions, infinity). +subscribe(Pid) -> + gen_server:cast(?SERVER, {subscribe, Pid}). + %%---------------------------------------------------------------------------- %% gen_server callbacks %%---------------------------------------------------------------------------- @@ -190,8 +194,9 @@ init([]) -> %% happen. process_flag(trap_exit, true), {ok, _} = mnesia:subscribe(system), - {ok, #state{monitors = pmon:new(), - partitions = []}}. + {ok, #state{monitors = pmon:new(), + subscribers = pmon:new(), + partitions = []}}. handle_call(partitions, _From, State = #state{partitions = Partitions}) -> {reply, {node(), Partitions}, State}; @@ -232,17 +237,24 @@ handle_cast({left_cluster, Node}, State) -> write_cluster_status({del_node(Node, AllNodes), del_node(Node, DiscNodes), del_node(Node, RunningNodes)}), {noreply, State}; +handle_cast({subscribe, Pid}, State = #state{subscribers = Subscribers}) -> + {noreply, State#state{subscribers = pmon:monitor(Pid, Subscribers)}}; handle_cast(_Msg, State) -> {noreply, State}. handle_info({'DOWN', _MRef, process, {rabbit, Node}, _Reason}, - State = #state{monitors = Monitors}) -> + State = #state{monitors = Monitors, subscribers = Subscribers}) -> rabbit_log:info("rabbit on node ~p down~n", [Node]), {AllNodes, DiscNodes, RunningNodes} = read_cluster_status(), write_cluster_status({AllNodes, DiscNodes, del_node(Node, RunningNodes)}), ok = handle_dead_rabbit(Node), + [P ! {node_down, Node} || P <- pmon:monitored(Subscribers)], {noreply, State#state{monitors = pmon:erase({rabbit, Node}, Monitors)}}; +handle_info({'DOWN', _MRef, process, Pid, _Reason}, + State = #state{subscribers = Subscribers}) -> + {noreply, State#state{subscribers = pmon:erase(Pid, Subscribers)}}; + handle_info({mnesia_system_event, {inconsistent_database, running_partitioned_network, Node}}, State = #state{partitions = Partitions}) -> -- cgit v1.2.1 From 8475fefc49137337032b430ea9b6ce0404aaea90 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 4 Mar 2013 17:50:15 +0000 Subject: Permit exchange decorators to modify routing decisions --- src/rabbit_exchange.erl | 51 ++++++++++++++++++++------------------- src/rabbit_exchange_decorator.erl | 6 ++++- 2 files changed, 31 insertions(+), 26 deletions(-) diff --git a/src/rabbit_exchange.erl b/src/rabbit_exchange.erl index 88033f77..9dddadcc 100644 --- a/src/rabbit_exchange.erl +++ b/src/rabbit_exchange.erl @@ -304,22 +304,24 @@ info_all(VHostPath) -> map(VHostPath, fun (X) -> info(X) end). info_all(VHostPath, Items) -> map(VHostPath, fun (X) -> info(X, Items) end). -%% Optimisation -route(#exchange{name = #resource{name = <<"">>, virtual_host = VHost}}, - #delivery{message = #basic_message{routing_keys = RKs}}) -> - [rabbit_misc:r(VHost, queue, RK) || RK <- lists:usort(RKs)]; - route(X = #exchange{name = XName}, Delivery) -> - route1(Delivery, {[X], XName, []}). - -route1(_, {[], _, QNames}) -> - lists:usort(QNames); -route1(Delivery, {[X = #exchange{type = Type} | WorkList], SeenXs, QNames}) -> - DstNames = process_alternate( - X, ((type_to_module(Type)):route(X, Delivery))), - route1(Delivery, - lists:foldl(fun process_route/2, {WorkList, SeenXs, QNames}, - DstNames)). + lists:foldl(fun (Decorator, Routes) -> + apply(Decorator, route, [X, Delivery, Routes]) + end, + route1(Delivery, {queue:from_list([X]), XName, []}), + decorators()). + +route1(Delivery, {WorkList, SeenXs, QNames}) -> + case queue:out(WorkList) of + {empty, _WorkList} -> + lists:usort(QNames); + {{value, X = #exchange{type = Type}}, WorkList1} -> + DstNames = process_alternate( + X, ((type_to_module(Type)):route(X, Delivery))), + route1(Delivery, + lists:foldl(fun process_route/2, {WorkList1, SeenXs, QNames}, + DstNames)) + end. process_alternate(#exchange{arguments = []}, Results) -> %% optimisation Results; @@ -336,25 +338,24 @@ process_route(#resource{kind = exchange} = XName, Acc; process_route(#resource{kind = exchange} = XName, {WorkList, #resource{kind = exchange} = SeenX, QNames}) -> - {cons_if_present(XName, WorkList), - gb_sets:from_list([SeenX, XName]), QNames}; + {case lookup(XName) of + {ok, X} -> queue:in(X, WorkList); + {error, not_found} -> WorkList + end, gb_sets:from_list([SeenX, XName]), QNames}; process_route(#resource{kind = exchange} = XName, {WorkList, SeenXs, QNames} = Acc) -> case gb_sets:is_element(XName, SeenXs) of true -> Acc; - false -> {cons_if_present(XName, WorkList), - gb_sets:add_element(XName, SeenXs), QNames} + false -> {case lookup(XName) of + {ok, X} -> queue:in(X, WorkList); + {error, not_found} -> WorkList + end, gb_sets:add_element(XName, SeenXs), QNames} + end; process_route(#resource{kind = queue} = QName, {WorkList, SeenXs, QNames}) -> {WorkList, SeenXs, [QName | QNames]}. -cons_if_present(XName, L) -> - case lookup(XName) of - {ok, X} -> [X | L]; - {error, not_found} -> L - end. - call_with_exchange(XName, Fun) -> rabbit_misc:execute_mnesia_tx_with_tail( fun () -> case mnesia:read({rabbit_exchange, XName}) of diff --git a/src/rabbit_exchange_decorator.erl b/src/rabbit_exchange_decorator.erl index befbc462..908133c3 100644 --- a/src/rabbit_exchange_decorator.erl +++ b/src/rabbit_exchange_decorator.erl @@ -58,13 +58,17 @@ -callback policy_changed ( serial(), rabbit_types:exchange(), rabbit_types:exchange()) -> 'ok'. +-callback route ( + rabbit_types:exchange(), rabbit_types:delivery(), + [rabbit_amqqueue:name()]) -> [rabbit_amqqueue:name()]. + -else. -export([behaviour_info/1]). behaviour_info(callbacks) -> [{description, 0}, {serialise_events, 1}, {create, 2}, {delete, 3}, - {add_binding, 3}, {remove_bindings, 3}, {policy_changed, 3}]; + {add_binding, 3}, {remove_bindings, 3}, {policy_changed, 3}, {route, 3}]; behaviour_info(_Other) -> undefined. -- cgit v1.2.1 From 1e4232307730f751b0bb4bc0adbf125a7ea35af1 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 15 Mar 2013 17:38:37 +0000 Subject: First draft of last value cache --- src/rabbit_amqqueue_process.erl | 42 +++++++++++-- src/rabbit_exchange_decorator_lvc.erl | 111 ++++++++++++++++++++++++++++++++++ 2 files changed, 147 insertions(+), 6 deletions(-) create mode 100644 src/rabbit_exchange_decorator_lvc.erl diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 18b641d4..b09a34ec 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -813,7 +813,7 @@ dead_letter_msgs(Fun, Reason, X, State = #q{dlx_routing_key = RK, X, RK, SeqNo, QName) of [] -> {[AckTag | AckImm], SeqNo, UC, QMons}; QPids -> {AckImm, SeqNo + 1, - dtree:insert(SeqNo, QPids, AckTag, UC), + dtree:insert(SeqNo, QPids, {ack, AckTag}, UC), pmon:monitor_all(QPids, QMons)} end end, {[], SeqNo0, UC0, QMons0}, BQS), @@ -861,11 +861,17 @@ stop(From, Reply, State = #q{unconfirmed = UC}) -> {false, _} -> noreply(State#q{delayed_stop = {From, Reply}}) end. -cleanup_after_confirm(AckTags, State = #q{delayed_stop = DS, +cleanup_after_confirm(Actions, State = #q{delayed_stop = DS, unconfirmed = UC, backing_queue = BQ, backing_queue_state = BQS}) -> - {_Guids, BQS1} = BQ:ack(AckTags, BQS), + Acks = lists:foldl(fun ({reply, Reply, From}, Acc) -> + gen_server2:reply(From, Reply), + Acc; + ({ack, Ack}, Acc) -> + [Ack | Acc] + end, [], Actions), + {_Guids, BQS1} = BQ:ack(Acks, BQS), State1 = State#q{backing_queue_state = BQS1}, case dtree:is_empty(UC) andalso DS =/= undefined of true -> case DS of @@ -1239,16 +1245,40 @@ handle_call(force_event_refresh, _From, {Ch, CTag} -> [{Ch, CTag, AckRequired}] = consumers(State), emit_consumer_created(Ch, CTag, true, AckRequired, QName) end, - reply(ok, State). + reply(ok, State); + +handle_call({copy, DestQName}, From, State = #q{backing_queue = BQ, + publish_seqno = SeqNo0, + queue_monitors = QMons0, + unconfirmed = UC0, + backing_queue_state = BQS0}) -> + {ok, #amqqueue{pid = DestQPid} = DestQ} = rabbit_amqqueue:lookup(DestQName), + {SeqNo1, BQS1} = + BQ:fold(fun (Msg, _Props, _Unacked, SeqNo) -> + Delivery = rabbit_basic:delivery(false, Msg, SeqNo), + rabbit_amqqueue:deliver([DestQ], Delivery), + {cont, SeqNo + 1} + end, SeqNo0, BQS0), + case SeqNo1 - SeqNo0 of + 0 -> + reply(0, State #q{backing_queue_state = BQS1}); + Count -> + UC1 = dtree:insert(SeqNo1-1, [DestQPid], {reply, Count, From}, UC0), + QMons1 = pmon:monitor(DestQ#amqqueue.pid, QMons0), + noreply(State #q{backing_queue_state = BQS1, + publish_seqno = SeqNo1, + unconfirmed = UC1, + queue_monitors = QMons1}) + end. handle_cast({confirm, MsgSeqNos, QPid}, State = #q{unconfirmed = UC}) -> - {MsgSeqNoAckTags, UC1} = dtree:take(MsgSeqNos, QPid, UC), + {MsgSeqNoActions, UC1} = dtree:take(MsgSeqNos, QPid, UC), State1 = case dtree:is_defined(QPid, UC1) of false -> QMons = State#q.queue_monitors, State#q{queue_monitors = pmon:demonitor(QPid, QMons)}; true -> State end, - cleanup_after_confirm([AckTag || {_MsgSeqNo, AckTag} <- MsgSeqNoAckTags], + cleanup_after_confirm([Action || {_MsgSeqNo, Action} <- MsgSeqNoActions], State1#q{unconfirmed = UC1}); handle_cast(_, State = #q{delayed_stop = DS}) when DS =/= undefined -> diff --git a/src/rabbit_exchange_decorator_lvc.erl b/src/rabbit_exchange_decorator_lvc.erl new file mode 100644 index 00000000..b5ce1954 --- /dev/null +++ b/src/rabbit_exchange_decorator_lvc.erl @@ -0,0 +1,111 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is VMware, Inc. +%% Copyright (c) 2013-2013 VMware, Inc. All rights reserved. +%% + +-module(rabbit_exchange_decorator_lvc). +-include("rabbit.hrl"). + +-rabbit_boot_step({?MODULE, + [{description, "LVC exchange decorator"}, + {mfa, {rabbit_registry, register, + [exchange_decorator, <<"lvc">>, ?MODULE]}}, + {mfa, {rabbit_registry, register, + [exchange_decorator_route, <<"lvc">>, ?MODULE]}}, + {mfa, {rabbit_registry, register, + [policy_validator, <<"lvc">>, ?MODULE]}}, + {requires, rabbit_registry}, + {enables, recovery}]}). + +-behaviour(rabbit_exchange_decorator). +-behaviour(rabbit_policy_validator). + +-export([description/0, serialise_events/1]). +-export([create/2, delete/3, add_binding/3, remove_bindings/3, + policy_changed/3, route/2]). +-export([validate_policy/1]). + +%%---------------------------------------------------------------------------- + +description() -> + [{description, <<"LVC exchange decorator">>}]. + +serialise_events(_) -> false. + +create(_Tx, _X) -> ok. + +delete(_Tx, _X, _Bs) -> ok. + +add_binding(none, X, #binding{key = Key, + destination = #resource{kind = queue} = Queue}) -> + case policy(X) of + false -> + ok; + _ -> + rabbit_amqqueue:with( + queue_name(X, Key), + fun (#amqqueue{pid = QPid}) -> + gen_server2:call(QPid, {copy, Queue}) + end), + ok + end; +add_binding(_Tx, _X, _B) -> + ok. + +remove_bindings(transaction, _X, _Bs) -> + ok; +remove_bindings(none, X = #exchange{name = _XName}, _Bs) -> + case policy(X) of + false -> ok; + _Max -> ok % TODO: no key in binding? + end. + +route(X, #delivery{message = #basic_message{routing_keys = RKs}}) -> + case policy(X) of + false -> + []; + Max -> + [begin + rabbit_amqqueue:declare(queue_name(X, RK), false, false, + [{<<"x-max-length">>, long, Max}], + none), + queue_name(X, RK) + end || RK <- RKs] + end. + +policy_changed(_Tx, _OldX, _NewX) -> ok. + +%%---------------------------------------------------------------------------- + +validate_policy([{<<"lvc">>, MaxCache}]) when is_integer(MaxCache) -> + ok; +validate_policy(Invalid) -> + {error, "~p invalid LVC policy", [Invalid]}. + +%%---------------------------------------------------------------------------- + +queue_name(#exchange{name = #resource{virtual_host = VHostPath, + kind = exchange, + name = Name}}, Key) -> + rabbit_misc:r( + VHostPath, queue, + list_to_binary([Name, ".", Key, ".", + base64:encode(erlang:md5(term_to_binary({Name, Key})))])). + + +policy(#exchange{} = X) -> + case rabbit_policy:get(<<"lvc">>, X) of + {ok, Max} -> Max; + {error, not_found} -> false + end. -- cgit v1.2.1 From 3831dd605719e9108c7377bcdf280c6255d0d249 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Wed, 20 Mar 2013 14:52:04 +0000 Subject: Rescue queue copy from revision 73cddf84d3a8 --- src/rabbit_amqqueue_process.erl | 42 +++++++++++++++++++++++++++++++++++------ 1 file changed, 36 insertions(+), 6 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 18b641d4..b09a34ec 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -813,7 +813,7 @@ dead_letter_msgs(Fun, Reason, X, State = #q{dlx_routing_key = RK, X, RK, SeqNo, QName) of [] -> {[AckTag | AckImm], SeqNo, UC, QMons}; QPids -> {AckImm, SeqNo + 1, - dtree:insert(SeqNo, QPids, AckTag, UC), + dtree:insert(SeqNo, QPids, {ack, AckTag}, UC), pmon:monitor_all(QPids, QMons)} end end, {[], SeqNo0, UC0, QMons0}, BQS), @@ -861,11 +861,17 @@ stop(From, Reply, State = #q{unconfirmed = UC}) -> {false, _} -> noreply(State#q{delayed_stop = {From, Reply}}) end. -cleanup_after_confirm(AckTags, State = #q{delayed_stop = DS, +cleanup_after_confirm(Actions, State = #q{delayed_stop = DS, unconfirmed = UC, backing_queue = BQ, backing_queue_state = BQS}) -> - {_Guids, BQS1} = BQ:ack(AckTags, BQS), + Acks = lists:foldl(fun ({reply, Reply, From}, Acc) -> + gen_server2:reply(From, Reply), + Acc; + ({ack, Ack}, Acc) -> + [Ack | Acc] + end, [], Actions), + {_Guids, BQS1} = BQ:ack(Acks, BQS), State1 = State#q{backing_queue_state = BQS1}, case dtree:is_empty(UC) andalso DS =/= undefined of true -> case DS of @@ -1239,16 +1245,40 @@ handle_call(force_event_refresh, _From, {Ch, CTag} -> [{Ch, CTag, AckRequired}] = consumers(State), emit_consumer_created(Ch, CTag, true, AckRequired, QName) end, - reply(ok, State). + reply(ok, State); + +handle_call({copy, DestQName}, From, State = #q{backing_queue = BQ, + publish_seqno = SeqNo0, + queue_monitors = QMons0, + unconfirmed = UC0, + backing_queue_state = BQS0}) -> + {ok, #amqqueue{pid = DestQPid} = DestQ} = rabbit_amqqueue:lookup(DestQName), + {SeqNo1, BQS1} = + BQ:fold(fun (Msg, _Props, _Unacked, SeqNo) -> + Delivery = rabbit_basic:delivery(false, Msg, SeqNo), + rabbit_amqqueue:deliver([DestQ], Delivery), + {cont, SeqNo + 1} + end, SeqNo0, BQS0), + case SeqNo1 - SeqNo0 of + 0 -> + reply(0, State #q{backing_queue_state = BQS1}); + Count -> + UC1 = dtree:insert(SeqNo1-1, [DestQPid], {reply, Count, From}, UC0), + QMons1 = pmon:monitor(DestQ#amqqueue.pid, QMons0), + noreply(State #q{backing_queue_state = BQS1, + publish_seqno = SeqNo1, + unconfirmed = UC1, + queue_monitors = QMons1}) + end. handle_cast({confirm, MsgSeqNos, QPid}, State = #q{unconfirmed = UC}) -> - {MsgSeqNoAckTags, UC1} = dtree:take(MsgSeqNos, QPid, UC), + {MsgSeqNoActions, UC1} = dtree:take(MsgSeqNos, QPid, UC), State1 = case dtree:is_defined(QPid, UC1) of false -> QMons = State#q.queue_monitors, State#q{queue_monitors = pmon:demonitor(QPid, QMons)}; true -> State end, - cleanup_after_confirm([AckTag || {_MsgSeqNo, AckTag} <- MsgSeqNoAckTags], + cleanup_after_confirm([Action || {_MsgSeqNo, Action} <- MsgSeqNoActions], State1#q{unconfirmed = UC1}); handle_cast(_, State = #q{delayed_stop = DS}) when DS =/= undefined -> -- cgit v1.2.1 From 31ca41c33b14fb6139c24501f0f5ac4b4b00b9d0 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 22 Mar 2013 14:33:18 +0000 Subject: Refrain from using confirms when copying queue contents --- src/rabbit_amqqueue_process.erl | 46 +++++++++++++---------------------------- 1 file changed, 14 insertions(+), 32 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index b09a34ec..6fcbeaf8 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -813,7 +813,7 @@ dead_letter_msgs(Fun, Reason, X, State = #q{dlx_routing_key = RK, X, RK, SeqNo, QName) of [] -> {[AckTag | AckImm], SeqNo, UC, QMons}; QPids -> {AckImm, SeqNo + 1, - dtree:insert(SeqNo, QPids, {ack, AckTag}, UC), + dtree:insert(SeqNo, QPids, AckTag, UC), pmon:monitor_all(QPids, QMons)} end end, {[], SeqNo0, UC0, QMons0}, BQS), @@ -861,17 +861,11 @@ stop(From, Reply, State = #q{unconfirmed = UC}) -> {false, _} -> noreply(State#q{delayed_stop = {From, Reply}}) end. -cleanup_after_confirm(Actions, State = #q{delayed_stop = DS, +cleanup_after_confirm(AckTags, State = #q{delayed_stop = DS, unconfirmed = UC, backing_queue = BQ, backing_queue_state = BQS}) -> - Acks = lists:foldl(fun ({reply, Reply, From}, Acc) -> - gen_server2:reply(From, Reply), - Acc; - ({ack, Ack}, Acc) -> - [Ack | Acc] - end, [], Actions), - {_Guids, BQS1} = BQ:ack(Acks, BQS), + {_Guids, BQS1} = BQ:ack(AckTags, BQS), State1 = State#q{backing_queue_state = BQS1}, case dtree:is_empty(UC) andalso DS =/= undefined of true -> case DS of @@ -1247,38 +1241,26 @@ handle_call(force_event_refresh, _From, end, reply(ok, State); -handle_call({copy, DestQName}, From, State = #q{backing_queue = BQ, - publish_seqno = SeqNo0, - queue_monitors = QMons0, - unconfirmed = UC0, - backing_queue_state = BQS0}) -> +handle_call({copy, DestQName}, _From, State = #q{backing_queue = BQ, + backing_queue_state = BQS0}) -> {ok, #amqqueue{pid = DestQPid} = DestQ} = rabbit_amqqueue:lookup(DestQName), - {SeqNo1, BQS1} = - BQ:fold(fun (Msg, _Props, _Unacked, SeqNo) -> - Delivery = rabbit_basic:delivery(false, Msg, SeqNo), + {ok, BQS1} = + BQ:fold(fun (Msg, _Props, _Unacked, ok) -> + Delivery = rabbit_basic:delivery(false, Msg, undefined), rabbit_amqqueue:deliver([DestQ], Delivery), - {cont, SeqNo + 1} - end, SeqNo0, BQS0), - case SeqNo1 - SeqNo0 of - 0 -> - reply(0, State #q{backing_queue_state = BQS1}); - Count -> - UC1 = dtree:insert(SeqNo1-1, [DestQPid], {reply, Count, From}, UC0), - QMons1 = pmon:monitor(DestQ#amqqueue.pid, QMons0), - noreply(State #q{backing_queue_state = BQS1, - publish_seqno = SeqNo1, - unconfirmed = UC1, - queue_monitors = QMons1}) - end. + {cont, ok} + end, ok, BQS0), + gen_server2:call(DestQPid, {info, []}), + reply(ok, State #q{backing_queue_state = BQS1}). handle_cast({confirm, MsgSeqNos, QPid}, State = #q{unconfirmed = UC}) -> - {MsgSeqNoActions, UC1} = dtree:take(MsgSeqNos, QPid, UC), + {MsgSeqNoAckTags, UC1} = dtree:take(MsgSeqNos, QPid, UC), State1 = case dtree:is_defined(QPid, UC1) of false -> QMons = State#q.queue_monitors, State#q{queue_monitors = pmon:demonitor(QPid, QMons)}; true -> State end, - cleanup_after_confirm([Action || {_MsgSeqNo, Action} <- MsgSeqNoActions], + cleanup_after_confirm([AckTag || {_MsgSeqNo, AckTag} <- MsgSeqNoAckTags], State1#q{unconfirmed = UC1}); handle_cast(_, State = #q{delayed_stop = DS}) when DS =/= undefined -> -- cgit v1.2.1 From c264931b22021db0697e5ec35f0d733ca6ee8ed5 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 22 Mar 2013 15:23:44 +0000 Subject: Add queue copy API --- src/rabbit_amqqueue.erl | 6 +++++- src/rabbit_amqqueue_process.erl | 2 ++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 82ac74fa..bb1a18b8 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -22,7 +22,8 @@ -export([lookup/1, not_found_or_absent/1, with/2, with/3, with_or_die/2, assert_equivalence/5, check_exclusive_access/2, with_exclusive_access_or_die/3, - stat/1, deliver/2, deliver_flow/2, requeue/3, ack/3, reject/4]). + stat/1, deliver/2, deliver_flow/2, requeue/3, ack/3, reject/4, + copy/2]). -export([list/0, list/1, info_keys/0, info/1, info/2, info_all/1, info_all/2]). -export([force_event_refresh/0, wake_up/1]). -export([consumers/1, consumers_all/1, consumer_info_keys/0]). @@ -143,6 +144,7 @@ -spec(requeue/3 :: (pid(), [msg_id()], pid()) -> 'ok'). -spec(ack/3 :: (pid(), [msg_id()], pid()) -> 'ok'). -spec(reject/4 :: (pid(), [msg_id()], boolean(), pid()) -> 'ok'). +-spec(copy/2 :: (rabbit_types:amqqueue(), rabbit_amqqueue:name()) -> 'ok'). -spec(notify_down_all/2 :: (qpids(), pid()) -> ok_or_errors()). -spec(limit_all/3 :: (qpids(), pid(), rabbit_limiter:token()) -> ok_or_errors()). @@ -528,6 +530,8 @@ ack(QPid, MsgIds, ChPid) -> delegate:cast(QPid, {ack, MsgIds, ChPid}). reject(QPid, MsgIds, Requeue, ChPid) -> delegate:cast(QPid, {reject, MsgIds, Requeue, ChPid}). +copy(#amqqueue{pid = SrcQPid}, DestQ) -> delegate:call(SrcQPid, {copy, DestQ}). + notify_down_all(QPids, ChPid) -> {_, Bads} = delegate:call(QPids, {notify_down, ChPid}), case lists:filter( diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 6fcbeaf8..1f2602eb 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -1241,6 +1241,8 @@ handle_call(force_event_refresh, _From, end, reply(ok, State); +handle_call({copy, Q}, _From, State = #q{q = #amqqueue{name = Q}}) -> + reply(ok, State); handle_call({copy, DestQName}, _From, State = #q{backing_queue = BQ, backing_queue_state = BQS0}) -> {ok, #amqqueue{pid = DestQPid} = DestQ} = rabbit_amqqueue:lookup(DestQName), -- cgit v1.2.1 From 0dbe4e89faff2869ce29db3b2305e15d20a0ac1b Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 25 Mar 2013 13:08:15 +0000 Subject: Queue copy test --- src/rabbit_tests.erl | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 1188c554..baa52356 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -63,6 +63,7 @@ all_tests() -> passed = test_server_status(), passed = test_amqp_connection_refusal(), passed = test_confirms(), + passed = test_queue_copy(), passed = do_if_secondary_node( fun run_cluster_dependent_tests/1, @@ -1302,6 +1303,24 @@ test_confirms() -> passed. +test_queue_copy() -> + {new, #amqqueue { name = QName1 } = Q1} = + rabbit_amqqueue:declare(queue_name(<<"test1">>), false, false, [], none), + {new, #amqqueue { name = QName2 } = Q2} = + rabbit_amqqueue:declare(queue_name(<<"test2">>), false, false, [], none), + Payload = "queue copy test payload", + publish_and_confirm(Q1, erlang:term_to_binary(Payload), 1), + rabbit_amqqueue:copy(Q1, QName2), + {ok, 0, {QName1, _Pid1, undefined, false, Msg1}} = + rabbit_amqqueue:basic_get(Q1, self(), true), + {ok, 0, {QName2, _Pid2, undefined, false, Msg2}} = + rabbit_amqqueue:basic_get(Q2, self(), true), + Payload = msg2int(Msg1), + Payload = msg2int(Msg2), + rabbit_amqqueue:delete(Q1, false, false), + rabbit_amqqueue:delete(Q2, false, false), + passed. + test_statistics_event_receiver(Pid) -> receive Foo -> Pid ! Foo, test_statistics_event_receiver(Pid) -- cgit v1.2.1 From f60b4b6cd51b3f57b89b890ce84e704ed53ea5f9 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 8 Apr 2013 15:48:17 +0100 Subject: Bytecode compatibility check during clustering --- src/rabbit_mnesia.erl | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index c39e898c..3e0cd282 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -740,6 +740,7 @@ check_consistency(OTP, Rabbit, Node, Status) -> rabbit_misc:sequence_error( [check_otp_consistency(OTP), check_rabbit_consistency(Rabbit), + check_beam_compatibility(Node), check_nodes_consistency(Node, Status)]). check_nodes_consistency(Node, RemoteStatus = {RemoteAllNodes, _, _}) -> @@ -780,6 +781,18 @@ check_rabbit_consistency(Remote) -> rabbit_misc:version(), Remote, "Rabbit", fun rabbit_misc:version_minor_equivalent/2). +check_beam_compatibility(Node) -> + {delegate, RBin, _} = rpc:call(Node, code, get_object_code, [delegate]), + {delegate, LBin, _} = code:get_object_code(delegate), + {ok, {delegate, RHash}} = beam_lib:md5(RBin), + {ok, {delegate, LHash}} = beam_lib:md5(LBin), + case RHash == LHash of + true -> ok; + false -> {error, {incompatible_bytecode, + rabbit_misc:format("Incompatible Erlang bytecode on " + "node ~p", [Node])}} + end. + %% This is fairly tricky. We want to know if the node is in the state %% that a `reset' would leave it in. We cannot simply check if the %% mnesia tables aren't there because restarted RAM nodes won't have -- cgit v1.2.1 From 58fb136705db9b9ccced0425eabce9b60af04125 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Thu, 18 Apr 2013 18:10:03 +0100 Subject: Prompt Mnesia to notice we've reconnected in case it doesn't notice itself. --- src/rabbit_node_monitor.erl | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl index fb74d4a3..ecfa75d1 100644 --- a/src/rabbit_node_monitor.erl +++ b/src/rabbit_node_monitor.erl @@ -280,17 +280,10 @@ handle_info(ping_nodes, State) -> %% to ping the nodes that are up, after all. State1 = State#state{down_ping_timer = undefined}, Self = self(), - %% all_nodes_up() both pings all the nodes and tells us if we need to again. - %% %% We ping in a separate process since in a partition it might %% take some noticeable length of time and we don't want to block %% the node monitor for that long. - spawn_link(fun () -> - case all_nodes_up() of - true -> ok; - false -> Self ! ping_again - end - end), + spawn_link(fun () -> ping_nodes(Self) end), {noreply, State1}; handle_info(ping_again, State) -> @@ -385,6 +378,19 @@ handle_dead_rabbit_state(State = #state{partitions = Partitions}) -> end, ensure_ping_timer(State#state{partitions = Partitions1}). +%% all_nodes_up() both pings all the nodes and tells us if we need to again. +ping_nodes(Self) -> + DownNodes = [Node || Node <- rabbit_mnesia:cluster_nodes(all), + mnesia_recover:has_mnesia_down(Node)], + case DownNodes of + [] -> ok; + _ -> [begin + net_adm:ping(Node), + spawn_link(mnesia_monitor, detect_partitioned_network, + [self(), Node]) + end || Node <- DownNodes] + end. + ensure_ping_timer(State) -> rabbit_misc:ensure_timer( State, #state.down_ping_timer, ?RABBIT_DOWN_PING_INTERVAL, ping_nodes). -- cgit v1.2.1 From fae3f115c998d01c3792fac1b1beb081871fdd1a Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 19 Apr 2013 12:24:10 +0100 Subject: Slightly more defensive, and update comment. --- src/rabbit_node_monitor.erl | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl index ecfa75d1..4e801854 100644 --- a/src/rabbit_node_monitor.erl +++ b/src/rabbit_node_monitor.erl @@ -378,7 +378,8 @@ handle_dead_rabbit_state(State = #state{partitions = Partitions}) -> end, ensure_ping_timer(State#state{partitions = Partitions1}). -%% all_nodes_up() both pings all the nodes and tells us if we need to again. +%% Sometimes Mnesia does not seem to detect a partitioned network +%% without a nudge. So let's give it that nudge. ping_nodes(Self) -> DownNodes = [Node || Node <- rabbit_mnesia:cluster_nodes(all), mnesia_recover:has_mnesia_down(Node)], @@ -386,8 +387,11 @@ ping_nodes(Self) -> [] -> ok; _ -> [begin net_adm:ping(Node), - spawn_link(mnesia_monitor, detect_partitioned_network, - [self(), Node]) + spawn_link( + fun () -> + catch mnesia_monitor:detect_partitioned_network( + self(), Node) + end) end || Node <- DownNodes] end. -- cgit v1.2.1 From d30039b89d0dd70528b0f6c734d955a72f12e60a Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 22 Apr 2013 17:16:57 +0100 Subject: Remove guard preventing channel down notifications from being acted on --- src/rabbit_mirror_queue_slave.erl | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index 22edfcb6..afa6de71 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -604,12 +604,9 @@ stop_rate_timer(State) -> rabbit_misc:stop_timer(State, #state.rate_timer_ref). ensure_monitoring(ChPid, State = #state { known_senders = KS }) -> State #state { known_senders = pmon:monitor(ChPid, KS) }. -local_sender_death(ChPid, State = #state { known_senders = KS }) -> - ok = case pmon:is_monitored(ChPid, KS) of - false -> ok; - true -> credit_flow:peer_down(ChPid), - confirm_sender_death(ChPid) - end, +local_sender_death(ChPid, State) -> + credit_flow:peer_down(ChPid), + ok = confirm_sender_death(ChPid), State. confirm_sender_death(Pid) -> -- cgit v1.2.1 From 47f972f22c01beb4ac36ae1ecd45c781896b5aae Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 23 Apr 2013 12:32:44 +0100 Subject: Add fake method records. --- include/rabbit.hrl | 8 ++++++++ src/rabbit_binary_generator.erl | 7 +++++++ 2 files changed, 15 insertions(+) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index 4282755d..88f7f93b 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -108,3 +108,11 @@ -define(INVALID_HEADERS_KEY, <<"x-invalid-headers">>). -define(ROUTING_HEADERS, [<<"CC">>, <<"BCC">>]). -define(DELETED_HEADER, <<"BCC">>). + +%%---------------------------------------------------------------------------- + +%% Fake method records, only for use by the direct client + +-record('basic.credit', {consumer_tag = <<"">>, credit, drain}). +-record('basic.credit_ok', {available}). +-record('basic.credit_drained', {consumer_tag = <<"">>, credit_drained}). diff --git a/src/rabbit_binary_generator.erl b/src/rabbit_binary_generator.erl index 05040485..42833797 100644 --- a/src/rabbit_binary_generator.erl +++ b/src/rabbit_binary_generator.erl @@ -222,6 +222,13 @@ map_exception(Channel, Reason, Protocol) -> method_id = MethodId}} end. +lookup_amqp_exception(#amqp_error{method = 'basic.credit'} = E, P) -> + lookup_amqp_exception(E#amqp_error{method = none}, P); +lookup_amqp_exception(#amqp_error{method = 'basic.credit_ok'} = E, P) -> + lookup_amqp_exception(E#amqp_error{method = none}, P); +lookup_amqp_exception(#amqp_error{method = 'basic.credit_drained'} = E, P) -> + lookup_amqp_exception(E#amqp_error{method = none}, P); + lookup_amqp_exception(#amqp_error{name = Name, explanation = Expl, method = Method}, -- cgit v1.2.1 From 2b8370c771bb8d6bc45fc01aaac86f6efdb8784d Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 23 Apr 2013 14:58:08 +0100 Subject: Revert that, removing the guard means we also go into confirm_sender_death even if we have unmonitored already - which means we must have done so due to sender_death. So that's definitely extra work, and I'm not sure it's even correct. --- src/rabbit_mirror_queue_slave.erl | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index afa6de71..22edfcb6 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -604,9 +604,12 @@ stop_rate_timer(State) -> rabbit_misc:stop_timer(State, #state.rate_timer_ref). ensure_monitoring(ChPid, State = #state { known_senders = KS }) -> State #state { known_senders = pmon:monitor(ChPid, KS) }. -local_sender_death(ChPid, State) -> - credit_flow:peer_down(ChPid), - ok = confirm_sender_death(ChPid), +local_sender_death(ChPid, State = #state { known_senders = KS }) -> + ok = case pmon:is_monitored(ChPid, KS) of + false -> ok; + true -> credit_flow:peer_down(ChPid), + confirm_sender_death(ChPid) + end, State. confirm_sender_death(Pid) -> -- cgit v1.2.1 From 87dc1b171b2884c6ca68b8c5c09c4a1faa301f10 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 23 Apr 2013 15:02:21 +0100 Subject: Move the peer_down handling to sender_death, since that's when the slave really gives up on a sender. --- src/rabbit_mirror_queue_slave.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index 22edfcb6..004cce25 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -607,8 +607,7 @@ ensure_monitoring(ChPid, State = #state { known_senders = KS }) -> local_sender_death(ChPid, State = #state { known_senders = KS }) -> ok = case pmon:is_monitored(ChPid, KS) of false -> ok; - true -> credit_flow:peer_down(ChPid), - confirm_sender_death(ChPid) + true -> confirm_sender_death(ChPid) end, State. @@ -775,6 +774,7 @@ process_instruction({sender_death, ChPid}, lists:foldl(fun dict:erase/2, MS, sets:to_list(PendingCh)) end, + credit_flow:peer_down(ChPid), State #state { sender_queues = dict:erase(ChPid, SQ), msg_id_status = MS1, known_senders = pmon:demonitor(ChPid, KS) } -- cgit v1.2.1 From 8415b6634ffa257f42c4ef758fd0e1d0bc9bbdd3 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 30 Apr 2013 11:43:26 +0100 Subject: Don't make deps.mk depend on generated sources since that seems to cause make to fail silently if it doesn't have the prerequisites to build them. --- Makefile | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index c63e3dfd..7afb198d 100644 --- a/Makefile +++ b/Makefile @@ -11,8 +11,12 @@ SOURCE_DIR=src EBIN_DIR=ebin INCLUDE_DIR=include DOCS_DIR=docs -INCLUDES=$(wildcard $(INCLUDE_DIR)/*.hrl) $(INCLUDE_DIR)/rabbit_framing.hrl -SOURCES=$(wildcard $(SOURCE_DIR)/*.erl) $(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) +INCLUDES_GEN=$(INCLUDE_DIR)/rabbit_framing.hrl +INCLUDES_NOGEN=$(filter-out $(INCLUDES_GEN),$(wildcard $(INCLUDE_DIR)/*.hrl)) +INCLUDES=$(INCLUDES_NOGEN) $(INCLUDES_GEN) +SOURCES_GEN=$(SOURCE_DIR)/rabbit_framing_amqp_0_9_1.erl $(SOURCE_DIR)/rabbit_framing_amqp_0_8.erl $(USAGES_ERL) +SOURCES_NOGEN=$(filter-out $(SOURCES_GEN),$(wildcard $(SOURCE_DIR)/*.erl)) +SOURCES=$(SOURCES_NOGEN) $(SOURCES_NOGEN) BEAM_TARGETS=$(patsubst $(SOURCE_DIR)/%.erl, $(EBIN_DIR)/%.beam, $(SOURCES)) TARGETS=$(EBIN_DIR)/rabbit.app $(INCLUDE_DIR)/rabbit_framing.hrl $(BEAM_TARGETS) plugins WEB_URL=http://www.rabbitmq.com/ @@ -126,7 +130,7 @@ check-xref: endif -$(DEPS_FILE): $(SOURCES) $(INCLUDES) +$(DEPS_FILE): $(SOURCES_NOGEN) $(INCLUDES_NOGEN) rm -f $@ echo $(subst : ,:,$(foreach FILE,$^,$(FILE):)) | escript generate_deps $@ $(EBIN_DIR) -- cgit v1.2.1 From c36c40829f1b3c4821e2e0732902dc1e020d7b57 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Mon, 24 Jun 2013 18:01:27 +0100 Subject: Introduce resource leak Necessary for maintenance of state during promotion --- src/rabbit_mirror_queue_slave.erl | 26 ++++++-------------------- 1 file changed, 6 insertions(+), 20 deletions(-) diff --git a/src/rabbit_mirror_queue_slave.erl b/src/rabbit_mirror_queue_slave.erl index 964b0eb4..76a32fbd 100644 --- a/src/rabbit_mirror_queue_slave.erl +++ b/src/rabbit_mirror_queue_slave.erl @@ -770,26 +770,12 @@ process_instruction({requeue, MsgIds}, {ok, State #state { msg_id_ack = MA1, backing_queue_state = BQS1 }}; process_instruction({sender_death, ChPid}, - State = #state { sender_queues = SQ, - msg_id_status = MS, - known_senders = KS }) -> - %% The channel will be monitored iff we have received a message - %% from it. In this case we just want to avoid doing work if we - %% never got any messages. - {ok, case pmon:is_monitored(ChPid, KS) of - false -> State; - true -> MS1 = case dict:find(ChPid, SQ) of - error -> - MS; - {ok, {_MQ, PendingCh}} -> - lists:foldl(fun dict:erase/2, MS, - sets:to_list(PendingCh)) - end, - credit_flow:peer_down(ChPid), - State #state { sender_queues = dict:erase(ChPid, SQ), - msg_id_status = MS1, - known_senders = pmon:demonitor(ChPid, KS) } - end}; + State = #state { known_senders = KS }) -> + case pmon:is_monitored(ChPid, KS) of + true -> credit_flow:peer_down(ChPid); + false -> ok + end, + {ok, State}; process_instruction({depth, Depth}, State = #state { backing_queue = BQ, backing_queue_state = BQS }) -> -- cgit v1.2.1 From b2834e453edf4479927e31c613cfd61c657d77ad Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Tue, 2 Jul 2013 10:55:43 +0100 Subject: Listen on loopback by default --- src/rabbit_networking.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index 702df040..515afe96 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -421,8 +421,8 @@ resolve_family(_, F) -> F. %% Unfortunately it seems there is no way to detect single vs dual stack %% apart from attempting to bind to the port. port_to_listeners(Port) -> - IPv4 = {"0.0.0.0", Port, inet}, - IPv6 = {"::", Port, inet6}, + IPv4 = {"127.0.0.1", Port, inet}, + IPv6 = {"::1" , Port, inet6}, case ipv6_status(?FIRST_TEST_BIND_PORT) of single_stack -> [IPv6]; ipv6_only -> [IPv6]; -- cgit v1.2.1 From 51192efbe244d74995783445690531c584683aae Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 3 Jul 2013 16:28:44 +0100 Subject: Filter out bad responses --- src/rabbit_mnesia.erl | 2 +- src/rabbit_node_monitor.erl | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 8cd976fa..9f18f491 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -341,7 +341,7 @@ status() -> mnesia_partitions(Nodes) -> {Replies, _BadNodes} = rpc:multicall( Nodes, rabbit_node_monitor, partitions, []), - [Reply || Reply = {_, R} <- Replies, R =/= []]. + [Reply || Reply = {ok, {_, R}} <- Replies, R =/= []]. is_running() -> mnesia:system_info(is_running) =:= yes. diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl index 7fcd1f99..9f76460b 100644 --- a/src/rabbit_node_monitor.erl +++ b/src/rabbit_node_monitor.erl @@ -208,7 +208,7 @@ init([]) -> autoheal = rabbit_autoheal:init()}}. handle_call(partitions, _From, State = #state{partitions = Partitions}) -> - {reply, {node(), Partitions}, State}; + {reply, {ok, {node(), Partitions}}, State}; handle_call(_Request, _From, State) -> {noreply, State}. -- cgit v1.2.1 From 871f292c099c2a4232b7a66223fa8d19b8e42ea1 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 3 Jul 2013 16:44:48 +0100 Subject: Unbreak autoheal. --- src/rabbit_autoheal.erl | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/src/rabbit_autoheal.erl b/src/rabbit_autoheal.erl index f903677b..39100743 100644 --- a/src/rabbit_autoheal.erl +++ b/src/rabbit_autoheal.erl @@ -181,8 +181,8 @@ partition_value(Partition) -> all_partitions(PartitionedWith) -> Nodes = rabbit_mnesia:cluster_nodes(all), Partitions = [{node(), PartitionedWith} | - [rpc:call(Node, rabbit_node_monitor, partitions, []) - || Node <- Nodes -- [node()]]], + lists:append( + [rpc_partitions(Node) || Node <- Nodes -- [node()]])], all_partitions(Partitions, [Nodes]). all_partitions([], Partitions) -> @@ -198,3 +198,9 @@ all_partitions([{Node, CantSee} | Rest], Partitions) -> _ -> [A, B | Others] end, all_partitions(Rest, Partitions1). + +rpc_partitions(Node) -> + case rpc:call(Node, rabbit_node_monitor, partitions, []) of + {ok, R} -> [R]; + _ -> [] + end. -- cgit v1.2.1 From 3754320269c2727a5a80d22590e70d2d2573324b Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Thu, 11 Jul 2013 12:09:10 +0100 Subject: Update docs for default listen interface --- docs/rabbitmq-server.1.xml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/rabbitmq-server.1.xml b/docs/rabbitmq-server.1.xml index 32ae842c..234665b5 100644 --- a/docs/rabbitmq-server.1.xml +++ b/docs/rabbitmq-server.1.xml @@ -83,7 +83,7 @@ machine guide for details. RABBITMQ_NODE_IP_ADDRESS -By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if +By default RabbitMQ will bind to the loopback interface, on IPv4 and IPv6 if available. Set this if you only want to bind to one network interface or address family. -- cgit v1.2.1 From 696cf6411a59f25b9fad1bed1214c62a646cd809 Mon Sep 17 00:00:00 2001 From: Alvaro Videla Date: Mon, 22 Jul 2013 21:19:34 +0200 Subject: introduces ssl_apps as a env parameter --- ebin/rabbit_app.in | 5 ++++- packaging/standalone/src/rabbit_release.erl | 4 +++- src/rabbit_networking.erl | 3 ++- 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/ebin/rabbit_app.in b/ebin/rabbit_app.in index abeeb6ce..c36e1839 100644 --- a/ebin/rabbit_app.in +++ b/ebin/rabbit_app.in @@ -69,5 +69,8 @@ rabbit_exchange_type_fanout, rabbit_exchange_type_topic, mnesia, mnesia_lib, rpc, mnesia_tm, qlc, sofs, proplists, credit_flow, pmon, ssl_connection, tls_connection, ssl_record, tls_record, - gen_fsm, ssl]} + gen_fsm, ssl]}, + %% see bug 25668 about why we need these + {ssl_apps, + [asn1, crypto, public_key, ssl]} ]}]}. diff --git a/packaging/standalone/src/rabbit_release.erl b/packaging/standalone/src/rabbit_release.erl index 26f36d68..9473cbda 100644 --- a/packaging/standalone/src/rabbit_release.erl +++ b/packaging/standalone/src/rabbit_release.erl @@ -54,7 +54,9 @@ start() -> end, %% we need a list of ERTS apps we need to ship with rabbit - BaseApps = AllApps -- PluginAppNames, + {ok, SslAppsConfig} = application:get_env(rabbit, ssl_apps), + + BaseApps = SslAppsConfig ++ AllApps -- PluginAppNames, AppVersions = [determine_version(App) || App <- BaseApps], RabbitVersion = proplists:get_value(rabbit, AppVersions), diff --git a/src/rabbit_networking.erl b/src/rabbit_networking.erl index 702df040..ebbedab8 100644 --- a/src/rabbit_networking.erl +++ b/src/rabbit_networking.erl @@ -145,7 +145,8 @@ start() -> rabbit_sup:start_supervisor_child( {rabbit_connection_sup,start_link,[]}]). ensure_ssl() -> - ok = app_utils:start_applications([asn1, crypto, public_key, ssl]), + {ok, SslAppsConfig} = application:get_env(rabbit, ssl_apps), + ok = app_utils:start_applications(SslAppsConfig), {ok, SslOptsConfig} = application:get_env(rabbit, ssl_options), % unknown_ca errors are silently ignored prior to R14B unless we -- cgit v1.2.1 From bec334aa7c26e7d6fd479aefbb129053a824cb5b Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Fri, 13 Sep 2013 16:35:01 +0100 Subject: Validate that self exists in GM view If not then another node believes we are down. That can happen if the cluster is not fully connected, which Mnesia does not handle. --- src/gm.erl | 61 ++++++++++++++++++++++++++++++++++++++++++++++--------------- 1 file changed, 46 insertions(+), 15 deletions(-) diff --git a/src/gm.erl b/src/gm.erl index 098d84fa..1cf077e0 100644 --- a/src/gm.erl +++ b/src/gm.erl @@ -612,14 +612,21 @@ handle_call({add_on_right, NewMember}, _From, MembersState1 end, TxnFun), View2 = group_to_view(Group), - State1 = check_neighbours(State #state { view = View2, - members_state = MembersState1 }), - Result = callback_view_changed(Args, Module, View, View2), - handle_callback_result({Result, {ok, Group}, State1}). + case validate_view(Self, View2) of + ok -> + State1 = State #state { view = View2, + members_state = MembersState1 }, + State2 = check_neighbours(State1), + Result = callback_view_changed(Args, Module, View, View2), + handle_callback_result({Result, {ok, Group}, State2}); + Err -> + {{stop, Err}, State} + end. handle_cast({?TAG, ReqVer, Msg}, - State = #state { view = View, + State = #state { self = Self, + view = View, members_state = MembersState, group_name = GroupName, module = Module, @@ -627,11 +634,17 @@ handle_cast({?TAG, ReqVer, Msg}, {Result, State1} = case needs_view_update(ReqVer, View) of true -> View1 = group_to_view(read_group(GroupName)), - MemberState1 = remove_erased_members(MembersState, View1), - {callback_view_changed(Args, Module, View, View1), - check_neighbours( - State #state { view = View1, - members_state = MemberState1 })}; + case validate_view(Self, View1) of + ok -> + MemberState1 = remove_erased_members(MembersState, + View1), + {callback_view_changed(Args, Module, View, View1), + check_neighbours( + State #state { view = View1, + members_state = MemberState1 })}; + Err -> + {{stop, Err}, State} + end; false -> {ok, State} end, handle_callback_result( @@ -726,11 +739,18 @@ handle_info({'DOWN', MRef, process, _Pid, Reason}, members_state = blank_member_state(), confirms = purge_confirms(Confirms) }}; _ -> - %% here we won't be pointing out any deaths: - %% the concern is that there maybe births - %% which we'd otherwise miss. - {callback_view_changed(Args, Module, View, View1), - check_neighbours(State #state { view = View1 })} + State1 = State #state { view = View1 }, + case validate_view(Self, View1) of + ok -> + %% here we won't be pointing out any deaths: + %% the concern is that there maybe births + %% which we'd otherwise miss. + {callback_view_changed( + Args, Module, View, View1), + check_neighbours(State1)}; + Err -> + {{stop, Err}, State1} + end end, handle_callback_result({Result, State2}) end. @@ -985,6 +1005,17 @@ link_view([Left, Middle, Right | Rest], View) -> link_view(_, View) -> View. +validate_view(Self, View) -> + case lists:member(Self, alive_view_members(View)) of + true -> ok; + false -> %% Another node removed us from the view. No safe + %% recovery is possible so we shut the node down + rabbit_log:info("Fatal network partition detected.~n" + "Node committing suicide.~n"), + init:stop(), + {shutdown, partial_partition_detected} + end. + add_aliases(View, Members) -> Members1 = ensure_alive_suffix(Members), {EmptyDeadSet, View1} = -- cgit v1.2.1 From bd17f5fcec5fc19ee5968602ff314aa0abfaeb9f Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 23 Oct 2013 11:45:07 +0100 Subject: Exit with something slightly more interesting than badmatch if the exchange is not there. --- src/rabbit_trace.erl | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/src/rabbit_trace.erl b/src/rabbit_trace.erl index d0dcaa71..7b4934c3 100644 --- a/src/rabbit_trace.erl +++ b/src/rabbit_trace.erl @@ -45,9 +45,11 @@ init(VHost) -> case enabled(VHost) of false -> none; - true -> {ok, X} = rabbit_exchange:lookup( - rabbit_misc:r(VHost, exchange, ?XNAME)), - X + true -> XName = rabbit_misc:r(VHost, exchange, ?XNAME), + case rabbit_exchange:lookup(XName) of + {ok, X} -> X; + {error, not_found} -> rabbit_misc:not_found(XName) + end end. enabled(VHost) -> -- cgit v1.2.1 From ee60f0ac3f76785d86fd42450e1d3b40d4dee432 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 23 Oct 2013 11:57:46 +0100 Subject: Declare the exchange if it does not exist --- src/rabbit_trace.erl | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/rabbit_trace.erl b/src/rabbit_trace.erl index 7b4934c3..a67d0033 100644 --- a/src/rabbit_trace.erl +++ b/src/rabbit_trace.erl @@ -48,7 +48,9 @@ init(VHost) -> true -> XName = rabbit_misc:r(VHost, exchange, ?XNAME), case rabbit_exchange:lookup(XName) of {ok, X} -> X; - {error, not_found} -> rabbit_misc:not_found(XName) + {error, not_found} -> rabbit_exchange:declare( + XName, topic, true, false, false, + []) end end. -- cgit v1.2.1 From 96be54ed774cf09446c898ee4ec1b1fd7c003bb7 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 25 Oct 2013 16:05:17 +0100 Subject: Fairly nasty copy-and-paste based approach to making this more transactional. --- src/rabbit_policy.erl | 43 +++++++++++++++++++++++++++++++++++-------- 1 file changed, 35 insertions(+), 8 deletions(-) diff --git a/src/rabbit_policy.erl b/src/rabbit_policy.erl index de10b30f..db6d042b 100644 --- a/src/rabbit_policy.erl +++ b/src/rabbit_policy.erl @@ -209,18 +209,45 @@ notify_clear(VHost, <<"policy">>, _Name) -> %%---------------------------------------------------------------------------- update_policies(VHost) -> - Policies = list(VHost), - {Xs, Qs} = rabbit_misc:execute_mnesia_transaction( - fun() -> - {[update_exchange(X, Policies) || - X <- rabbit_exchange:list(VHost)], - [update_queue(Q, Policies) || - Q <- rabbit_amqqueue:list(VHost)]} - end), + F = fun() -> + Policies = list_tx(VHost), + Xs = mnesia:match_object( + rabbit_exchange, + #exchange{name = rabbit_misc:r(VHost, exchange), + _ = '_'}, + read), + Qs = mnesia:match_object( + rabbit_queue, + #amqqueue{name = rabbit_misc:r(VHost, queue), + _ = '_'}, + read), + {[update_exchange(X, Policies) || X <- Xs], + [update_queue(Q, Policies) || Q <- Qs]} + end, + {Xs, Qs} = rabbit_misc:execute_mnesia_transaction(F), [catch notify(X) || X <- Xs], [catch notify(Q) || Q <- Qs], ok. +list_tx(VHost) -> + [p(P, fun ident/1) || P <- list_p(VHost, <<"policy">>)]. + +list_p(VHost, Component) -> + case VHost of + '_' -> ok; + _ -> rabbit_vhost:assert(VHost) + end, + Match = #runtime_parameters{key = {VHost, Component, '_'}, _ = '_'}, + [p_p(P) || #runtime_parameters{key = {_VHost, Comp, _Name}} = P <- + mnesia:match_object(rabbit_runtime_parameters, Match, read), + Comp =/= <<"policy">> orelse Component =:= <<"policy">>]. + +p_p(#runtime_parameters{key = {VHost, Component, Name}, value = Value}) -> + [{vhost, VHost}, + {component, Component}, + {name, Name}, + {value, Value}]. + update_exchange(X = #exchange{name = XName, policy = OldPolicy}, Policies) -> case match(XName, Policies) of OldPolicy -> no_change; -- cgit v1.2.1 From ee8ebeacf0050a6dcba5c5fe5486dcbe21c479e9 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 28 Oct 2013 11:58:41 +0000 Subject: rework qi recovery to use a global dets table --- src/rabbit_clean_shutdown.erl | 85 +++++++++++++++++++++++++++++++++++++++++++ src/rabbit_msg_store.erl | 40 ++++++++++---------- src/rabbit_queue_index.erl | 76 ++++++++++++++++++-------------------- 3 files changed, 141 insertions(+), 60 deletions(-) create mode 100644 src/rabbit_clean_shutdown.erl diff --git a/src/rabbit_clean_shutdown.erl b/src/rabbit_clean_shutdown.erl new file mode 100644 index 00000000..ca9d5432 --- /dev/null +++ b/src/rabbit_clean_shutdown.erl @@ -0,0 +1,85 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is GoPivotal, Inc. +%% Copyright (c) 2007-2013 GoPivotal, Inc. All rights reserved. +%% +-module(rabbit_clean_shutdown). + +-behaviour(gen_server). + +-export([recover/0, + start_link/0, + store/2, + detect_clean_shutdown/1, + read/1, + remove/1]). + +-export([init/1, + handle_call/3, + handle_cast/2, + handle_info/2, + terminate/2, + code_change/3]). + +-include("rabbit.hrl"). +-define(CLEAN_FILENAME, "clean.dot"). + +recover() -> + {ok, Child} = supervisor:start_child(rabbit_sup, + {?MODULE, {?MODULE, start_link, []}, + permanent, ?MAX_WAIT, worker, + [?MODULE]}), + ok = gen_server:call(Child, ready, infinity). + +start_link() -> + gen_server:start_link(?MODULE, [], []). + +store(Name, Terms) -> + dets:insert(?MODULE, {Name, Terms}). + +detect_clean_shutdown(Name) -> + dets:member(?MODULE, Name). + +read(Name) -> + case dets:lookup(?MODULE, Name) of + [Terms] -> {ok, Terms}; + _ -> {error, not_found} + end. + +remove(Name) -> + dets:delete(?MODULE, Name). + +init(_) -> + File = filename:join([rabbit_mnesia:dir(), "queues", ?CLEAN_FILENAME]), + {ok, _} = dets:open_file(?MODULE, [{file, File}, + {ram_file, true}, + {auto_save, infinity}]), + {ok, undefined}. + +handle_call(ready, _, State) -> + {reply, ok, State}; +handle_call(Msg, _, State) -> + {stop, {unexpected_call, Msg}, State}. + +handle_cast(Msg, State) -> + {stop, {unexpected_cast, Msg}, State}. + +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok = dets:sync(?MODULE). + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 9a4439a7..5a6dc7bb 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -37,7 +37,6 @@ -include("rabbit_msg_store.hrl"). -define(SYNC_INTERVAL, 25). %% milliseconds --define(CLEAN_FILENAME, "clean.dot"). -define(FILE_SUMMARY_FILENAME, "file_summary.ets"). -define(TRANSFORM_TMP, "transform_tmp"). @@ -58,6 +57,7 @@ -record(msstate, { dir, %% store directory + server_id, %% key into rabbit_clean_shutdown dets table index_module, %% the module for index ops index_state, %% where are messages? current_file, %% current file name as number @@ -708,6 +708,7 @@ init([Server, BaseDir, ClientRefs, StartupFunState]) -> }), State = #msstate { dir = Dir, + server_id = Server, index_module = IndexModule, index_state = IndexState, current_file = 0, @@ -900,7 +901,8 @@ terminate(_Reason, State = #msstate { index_state = IndexState, cur_file_cache_ets = CurFileCacheEts, flying_ets = FlyingEts, clients = Clients, - dir = Dir }) -> + dir = Dir, + server_id = ServerId }) -> %% stop the gc first, otherwise it could be working and we pull %% out the ets tables from under it. ok = rabbit_msg_store_gc:stop(GCPid), @@ -915,8 +917,9 @@ terminate(_Reason, State = #msstate { index_state = IndexState, [true = ets:delete(T) || T <- [FileSummaryEts, FileHandlesEts, CurFileCacheEts, FlyingEts]], IndexModule:terminate(IndexState), - ok = store_recovery_terms([{client_refs, dict:fetch_keys(Clients)}, - {index_module, IndexModule}], Dir), + ok = store_recovery_terms(ServerId, + [{client_refs, dict:fetch_keys(Clients)}, + {index_module, IndexModule}]), State3 #msstate { index_state = undefined, current_file_handle = undefined }. @@ -1463,7 +1466,7 @@ recover_index_and_client_refs(IndexModule, true, ClientRefs, Dir, Server) -> [Server | ErrorArgs]), {false, IndexModule:new(Dir), []} end, - case read_recovery_terms(Dir) of + case read_recovery_terms(Server) of {false, Error} -> Fresh("failed to read recovery terms: ~p", [Error]); {true, Terms} -> @@ -1481,16 +1484,18 @@ recover_index_and_client_refs(IndexModule, true, ClientRefs, Dir, Server) -> end end. -store_recovery_terms(Terms, Dir) -> - rabbit_file:write_term_file(filename:join(Dir, ?CLEAN_FILENAME), Terms). - -read_recovery_terms(Dir) -> - Path = filename:join(Dir, ?CLEAN_FILENAME), - case rabbit_file:read_term_file(Path) of - {ok, Terms} -> case file:delete(Path) of - ok -> {true, Terms}; - {error, Error} -> {false, Error} - end; +store_recovery_terms(ServerId, Terms) -> + %% Q: do we need to execute this inside a with_fhc_handle block!? + rabbit_clean_shutdown:store(ServerId, Terms). + +read_recovery_terms(Server) -> + case rabbit_clean_shutdown:read(Server) of + {ok, Terms} -> %% TODO: re-think the removal of recovery info.... + %case file:delete(Path) of + % ok -> {true, Terms}; + % {error, Error} -> {false, Error} + %end; + {true, Terms}; {error, Error} -> {false, Error} end. @@ -2016,10 +2021,7 @@ copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, force_recovery(BaseDir, Store) -> Dir = filename:join(BaseDir, atom_to_list(Store)), - case file:delete(filename:join(Dir, ?CLEAN_FILENAME)) of - ok -> ok; - {error, enoent} -> ok - end, + rabbit_clean_shutdown:delete(?MODULE), recover_crashed_compactions(BaseDir), ok. diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index f69d8355..9b85f1c0 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -21,7 +21,7 @@ publish/5, deliver/2, ack/2, sync/1, needs_sync/1, flush/1, read/3, next_segment_boundary/1, bounds/1, recover/1]). --export([scan/3]). +%% -export([scan/3]). -export([add_queue_ttl/0, avoid_zeroes/0]). @@ -162,7 +162,7 @@ %%---------------------------------------------------------------------------- -record(qistate, { dir, segments, journal_handle, dirty_count, - max_journal_entries, on_sync, unconfirmed }). + max_journal_entries, on_sync, unconfirmed, name }). -record(segment, { num, path, journal_entries, unacked }). @@ -191,7 +191,8 @@ dirty_count :: integer(), max_journal_entries :: non_neg_integer(), on_sync :: on_sync_fun(), - unconfirmed :: gb_set() + unconfirmed :: gb_set(), + name :: rabbit_amqqueue:name() }). -type(contains_predicate() :: fun ((rabbit_types:msg_id()) -> boolean())). -type(walker(A) :: fun ((A) -> 'finished' | @@ -222,11 +223,11 @@ {non_neg_integer(), non_neg_integer(), qistate()}). -spec(recover/1 :: ([rabbit_amqqueue:name()]) -> {[[any()]], {walker(A), A}}). --spec(scan/3 :: (file:filename(), - fun ((seq_id(), rabbit_types:msg_id(), - rabbit_types:message_properties(), boolean(), - ('del' | 'no_del'), ('ack' | 'no_ack'), A) -> A), - A) -> A). +%-spec(scan/3 :: (file:filename(), +% fun ((seq_id(), rabbit_types:msg_id(), +% rabbit_types:message_properties(), boolean(), +% ('del' | 'no_del'), ('ack' | 'no_ack'), A) -> A), +% A) -> A). -spec(add_queue_ttl/0 :: () -> 'ok'). @@ -243,25 +244,24 @@ init(Name, OnSyncFun) -> State #qistate { on_sync = OnSyncFun }. shutdown_terms(Name) -> - #qistate { dir = Dir } = blank_state(Name), - case read_shutdown_terms(Dir) of + case rabbit_clean_shutdown:read(Name) of {error, _} -> []; {ok, Terms1} -> Terms1 end. recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> - State = #qistate { dir = Dir } = blank_state(Name), + State = blank_state(Name), State1 = State #qistate { on_sync = OnSyncFun }, - CleanShutdown = detect_clean_shutdown(Dir), + CleanShutdown = rabbit_clean_shutdown:detect(Name), case CleanShutdown andalso MsgStoreRecovered of true -> RecoveredCounts = proplists:get_value(segments, Terms, []), init_clean(RecoveredCounts, State1); false -> init_dirty(CleanShutdown, ContainsCheckFun, State1) end. -terminate(Terms, State) -> - {SegmentCounts, State1 = #qistate { dir = Dir }} = terminate(State), - store_clean_shutdown([{segments, SegmentCounts} | Terms], Dir), +terminate(Terms, State = #qistate { name = Name }) -> + {SegmentCounts, State1} = terminate(State), + rabbit_clean_shutdown:store(Name, [{segments, SegmentCounts} | Terms]), State1. delete_and_terminate(State) -> @@ -358,26 +358,35 @@ bounds(State = #qistate { segments = Segments }) -> {LowSeqId, NextSeqId, State}. recover(DurableQueues) -> - DurableDict = dict:from_list([ {queue_name_to_dir_name(Queue), Queue} || - Queue <- DurableQueues ]), + ok = rabbit_clean_shutdown:recover(), + DurableDict = + dict:from_list([begin + {queue_name_to_dir_name(Queue), Queue} + end || Queue <- DurableQueues ]), QueuesDir = queues_dir(), QueueDirNames = all_queue_directory_names(QueuesDir), DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), + + %% TODO: this next fold assumes that we can have durable queue + %% entires that have no corresponding directory, but not that we + %% can have directories with no corresponding queue record. + {DurableQueueNames, DurableTerms} = lists:foldl( fun (QueueDirName, {DurableAcc, TermsAcc}) -> + QName = dict:fetch(QueueDirName, DurableDict), QueueDirPath = filename:join(QueuesDir, QueueDirName), case sets:is_element(QueueDirName, DurableDirectories) of true -> TermsAcc1 = - case read_shutdown_terms(QueueDirPath) of + case rabbit_clean_shutdown:read(QName) of {error, _} -> TermsAcc; {ok, Terms} -> [Terms | TermsAcc] end, - {[dict:fetch(QueueDirName, DurableDict) | DurableAcc], - TermsAcc1}; + {[QName | DurableAcc], TermsAcc1}; false -> ok = rabbit_file:recursive_delete([QueueDirPath]), + rabbit_clean_shutdown:remove(QName), {DurableAcc, TermsAcc} end end, {[], []}, QueueDirNames), @@ -396,10 +405,10 @@ all_queue_directory_names(Dir) -> %%---------------------------------------------------------------------------- blank_state(QueueName) -> - blank_state_dir( + blank_state_dir(QueueName, filename:join(queues_dir(), queue_name_to_dir_name(QueueName))). -blank_state_dir(Dir) -> +blank_state_dir(Name, Dir) -> {ok, MaxJournal} = application:get_env(rabbit, queue_index_max_journal_entries), #qistate { dir = Dir, @@ -408,23 +417,8 @@ blank_state_dir(Dir) -> dirty_count = 0, max_journal_entries = MaxJournal, on_sync = fun (_) -> ok end, - unconfirmed = gb_sets:new() }. - -clean_filename(Dir) -> filename:join(Dir, ?CLEAN_FILENAME). - -detect_clean_shutdown(Dir) -> - case rabbit_file:delete(clean_filename(Dir)) of - ok -> true; - {error, enoent} -> false - end. - -read_shutdown_terms(Dir) -> - rabbit_file:read_term_file(clean_filename(Dir)). - -store_clean_shutdown(Terms, Dir) -> - CleanFileName = clean_filename(Dir), - ok = rabbit_file:ensure_dir(CleanFileName), - rabbit_file:write_term_file(CleanFileName, Terms). + unconfirmed = gb_sets:new(), + name = Name }. init_clean(RecoveredCounts, State) -> %% Load the journal. Since this is a clean recovery this (almost) @@ -554,8 +548,8 @@ queue_index_walker_reader(QueueName, Gatherer) -> end, ok, State), ok = gatherer:finish(Gatherer). -scan(Dir, Fun, Acc) -> - scan_segments(Fun, Acc, blank_state_dir(Dir)). +%scan(Dir, Fun, Acc) -> +% scan_segments(Fun, Acc, blank_state_dir(Dir)). scan_segments(Fun, Acc, State) -> State1 = #qistate { segments = Segments, dir = Dir } = -- cgit v1.2.1 From 26385aa5c0c03deb70654034b49d29f4db5d73f1 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 28 Oct 2013 13:40:36 +0000 Subject: fix clean shutdown detection --- src/rabbit_clean_shutdown.erl | 4 ++-- src/rabbit_queue_index.erl | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/rabbit_clean_shutdown.erl b/src/rabbit_clean_shutdown.erl index ca9d5432..85b982cc 100644 --- a/src/rabbit_clean_shutdown.erl +++ b/src/rabbit_clean_shutdown.erl @@ -20,7 +20,7 @@ -export([recover/0, start_link/0, store/2, - detect_clean_shutdown/1, + detect/1, read/1, remove/1]). @@ -47,7 +47,7 @@ start_link() -> store(Name, Terms) -> dets:insert(?MODULE, {Name, Terms}). -detect_clean_shutdown(Name) -> +detect(Name) -> dets:member(?MODULE, Name). read(Name) -> diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 9b85f1c0..79c07e6b 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -252,7 +252,7 @@ shutdown_terms(Name) -> recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> State = blank_state(Name), State1 = State #qistate { on_sync = OnSyncFun }, - CleanShutdown = rabbit_clean_shutdown:detect(Name), + CleanShutdown = rabbit_clean_shutdown:detect(Name#resource.name), case CleanShutdown andalso MsgStoreRecovered of true -> RecoveredCounts = proplists:get_value(segments, Terms, []), init_clean(RecoveredCounts, State1); -- cgit v1.2.1 From d1d714973a561495e1e452f372984e1c26cab3c1 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 28 Oct 2013 13:41:29 +0000 Subject: back out of changes to the message store --- src/rabbit_msg_store.erl | 40 +++++++++++++++++++--------------------- 1 file changed, 19 insertions(+), 21 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 5a6dc7bb..9a4439a7 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -37,6 +37,7 @@ -include("rabbit_msg_store.hrl"). -define(SYNC_INTERVAL, 25). %% milliseconds +-define(CLEAN_FILENAME, "clean.dot"). -define(FILE_SUMMARY_FILENAME, "file_summary.ets"). -define(TRANSFORM_TMP, "transform_tmp"). @@ -57,7 +58,6 @@ -record(msstate, { dir, %% store directory - server_id, %% key into rabbit_clean_shutdown dets table index_module, %% the module for index ops index_state, %% where are messages? current_file, %% current file name as number @@ -708,7 +708,6 @@ init([Server, BaseDir, ClientRefs, StartupFunState]) -> }), State = #msstate { dir = Dir, - server_id = Server, index_module = IndexModule, index_state = IndexState, current_file = 0, @@ -901,8 +900,7 @@ terminate(_Reason, State = #msstate { index_state = IndexState, cur_file_cache_ets = CurFileCacheEts, flying_ets = FlyingEts, clients = Clients, - dir = Dir, - server_id = ServerId }) -> + dir = Dir }) -> %% stop the gc first, otherwise it could be working and we pull %% out the ets tables from under it. ok = rabbit_msg_store_gc:stop(GCPid), @@ -917,9 +915,8 @@ terminate(_Reason, State = #msstate { index_state = IndexState, [true = ets:delete(T) || T <- [FileSummaryEts, FileHandlesEts, CurFileCacheEts, FlyingEts]], IndexModule:terminate(IndexState), - ok = store_recovery_terms(ServerId, - [{client_refs, dict:fetch_keys(Clients)}, - {index_module, IndexModule}]), + ok = store_recovery_terms([{client_refs, dict:fetch_keys(Clients)}, + {index_module, IndexModule}], Dir), State3 #msstate { index_state = undefined, current_file_handle = undefined }. @@ -1466,7 +1463,7 @@ recover_index_and_client_refs(IndexModule, true, ClientRefs, Dir, Server) -> [Server | ErrorArgs]), {false, IndexModule:new(Dir), []} end, - case read_recovery_terms(Server) of + case read_recovery_terms(Dir) of {false, Error} -> Fresh("failed to read recovery terms: ~p", [Error]); {true, Terms} -> @@ -1484,18 +1481,16 @@ recover_index_and_client_refs(IndexModule, true, ClientRefs, Dir, Server) -> end end. -store_recovery_terms(ServerId, Terms) -> - %% Q: do we need to execute this inside a with_fhc_handle block!? - rabbit_clean_shutdown:store(ServerId, Terms). - -read_recovery_terms(Server) -> - case rabbit_clean_shutdown:read(Server) of - {ok, Terms} -> %% TODO: re-think the removal of recovery info.... - %case file:delete(Path) of - % ok -> {true, Terms}; - % {error, Error} -> {false, Error} - %end; - {true, Terms}; +store_recovery_terms(Terms, Dir) -> + rabbit_file:write_term_file(filename:join(Dir, ?CLEAN_FILENAME), Terms). + +read_recovery_terms(Dir) -> + Path = filename:join(Dir, ?CLEAN_FILENAME), + case rabbit_file:read_term_file(Path) of + {ok, Terms} -> case file:delete(Path) of + ok -> {true, Terms}; + {error, Error} -> {false, Error} + end; {error, Error} -> {false, Error} end. @@ -2021,7 +2016,10 @@ copy_messages(WorkList, InitOffset, FinalOffset, SourceHdl, DestinationHdl, force_recovery(BaseDir, Store) -> Dir = filename:join(BaseDir, atom_to_list(Store)), - rabbit_clean_shutdown:delete(?MODULE), + case file:delete(filename:join(Dir, ?CLEAN_FILENAME)) of + ok -> ok; + {error, enoent} -> ok + end, recover_crashed_compactions(BaseDir), ok. -- cgit v1.2.1 From d14cf74b149beeaa04f6b470b35e347e312630fd Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Tue, 29 Oct 2013 11:09:54 +0000 Subject: refactor - better function names --- src/rabbit_clean_shutdown.erl | 16 ++++++++-------- src/rabbit_queue_index.erl | 10 ++++++---- 2 files changed, 14 insertions(+), 12 deletions(-) diff --git a/src/rabbit_clean_shutdown.erl b/src/rabbit_clean_shutdown.erl index 85b982cc..749318d1 100644 --- a/src/rabbit_clean_shutdown.erl +++ b/src/rabbit_clean_shutdown.erl @@ -19,10 +19,10 @@ -export([recover/0, start_link/0, - store/2, - detect/1, - read/1, - remove/1]). + store_recovery_terms/2, + detect_clean_shutdown/1, + read_recovery_terms/1, + remove_recovery_terms/1]). -export([init/1, handle_call/3, @@ -44,19 +44,19 @@ recover() -> start_link() -> gen_server:start_link(?MODULE, [], []). -store(Name, Terms) -> +store_recovery_terms(Name, Terms) -> dets:insert(?MODULE, {Name, Terms}). -detect(Name) -> +detect_clean_shutdown(Name) -> dets:member(?MODULE, Name). -read(Name) -> +read_recovery_terms(Name) -> case dets:lookup(?MODULE, Name) of [Terms] -> {ok, Terms}; _ -> {error, not_found} end. -remove(Name) -> +remove_recovery_terms(Name) -> dets:delete(?MODULE, Name). init(_) -> diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 79c07e6b..1f740a4d 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -244,7 +244,7 @@ init(Name, OnSyncFun) -> State #qistate { on_sync = OnSyncFun }. shutdown_terms(Name) -> - case rabbit_clean_shutdown:read(Name) of + case rabbit_clean_shutdown:read_recovery_terms(Name) of {error, _} -> []; {ok, Terms1} -> Terms1 end. @@ -252,7 +252,8 @@ shutdown_terms(Name) -> recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> State = blank_state(Name), State1 = State #qistate { on_sync = OnSyncFun }, - CleanShutdown = rabbit_clean_shutdown:detect(Name#resource.name), + CleanShutdown = + rabbit_clean_shutdown:detect_clean_shutdown(Name#resource.name), case CleanShutdown andalso MsgStoreRecovered of true -> RecoveredCounts = proplists:get_value(segments, Terms, []), init_clean(RecoveredCounts, State1); @@ -261,7 +262,8 @@ recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> terminate(Terms, State = #qistate { name = Name }) -> {SegmentCounts, State1} = terminate(State), - rabbit_clean_shutdown:store(Name, [{segments, SegmentCounts} | Terms]), + rabbit_clean_shutdown:store_recovery_terms( + Name, [{segments, SegmentCounts} | Terms]), State1. delete_and_terminate(State) -> @@ -386,7 +388,7 @@ recover(DurableQueues) -> {[QName | DurableAcc], TermsAcc1}; false -> ok = rabbit_file:recursive_delete([QueueDirPath]), - rabbit_clean_shutdown:remove(QName), + rabbit_clean_shutdown:remove_recovery_terms(QName), {DurableAcc, TermsAcc} end end, {[], []}, QueueDirNames), -- cgit v1.2.1 From de6e9e5d02187f4a6b22c3098e3d974bb5c8e065 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Tue, 29 Oct 2013 11:11:00 +0000 Subject: remove superfluous comment --- src/rabbit_queue_index.erl | 5 ----- 1 file changed, 5 deletions(-) diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 1f740a4d..213babc8 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -368,11 +368,6 @@ recover(DurableQueues) -> QueuesDir = queues_dir(), QueueDirNames = all_queue_directory_names(QueuesDir), DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), - - %% TODO: this next fold assumes that we can have durable queue - %% entires that have no corresponding directory, but not that we - %% can have directories with no corresponding queue record. - {DurableQueueNames, DurableTerms} = lists:foldl( fun (QueueDirName, {DurableAcc, TermsAcc}) -> -- cgit v1.2.1 From db28a41e18c2d0103e0fef79720dc2a97c1aba99 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Tue, 29 Oct 2013 11:11:44 +0000 Subject: deprecate rabbit_queue_index:scan/3 --- src/rabbit_queue_index.erl | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 213babc8..fdcaa0f7 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -20,9 +20,6 @@ terminate/2, delete_and_terminate/1, publish/5, deliver/2, ack/2, sync/1, needs_sync/1, flush/1, read/3, next_segment_boundary/1, bounds/1, recover/1]). - -%% -export([scan/3]). - -export([add_queue_ttl/0, avoid_zeroes/0]). -define(CLEAN_FILENAME, "clean.dot"). @@ -222,13 +219,6 @@ -spec(bounds/1 :: (qistate()) -> {non_neg_integer(), non_neg_integer(), qistate()}). -spec(recover/1 :: ([rabbit_amqqueue:name()]) -> {[[any()]], {walker(A), A}}). - -%-spec(scan/3 :: (file:filename(), -% fun ((seq_id(), rabbit_types:msg_id(), -% rabbit_types:message_properties(), boolean(), -% ('del' | 'no_del'), ('ack' | 'no_ack'), A) -> A), -% A) -> A). - -spec(add_queue_ttl/0 :: () -> 'ok'). -endif. @@ -545,9 +535,6 @@ queue_index_walker_reader(QueueName, Gatherer) -> end, ok, State), ok = gatherer:finish(Gatherer). -%scan(Dir, Fun, Acc) -> -% scan_segments(Fun, Acc, blank_state_dir(Dir)). - scan_segments(Fun, Acc, State) -> State1 = #qistate { segments = Segments, dir = Dir } = recover_journal(State), -- cgit v1.2.1 From 194935d4ca5edaa9bec80fa7a1176f4dcef291d5 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Tue, 29 Oct 2013 11:42:08 +0000 Subject: add specs for rabbit_clean_shutdown --- src/rabbit_clean_shutdown.erl | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/src/rabbit_clean_shutdown.erl b/src/rabbit_clean_shutdown.erl index 749318d1..86e2eecb 100644 --- a/src/rabbit_clean_shutdown.erl +++ b/src/rabbit_clean_shutdown.erl @@ -31,6 +31,22 @@ terminate/2, code_change/3]). +-ifdef(use_specs). + +-spec(recover() -> 'ok'). +-spec(start_link() -> rabbit_types:ok_pid_or_error()). +-spec(store_recovery_terms( + Name :: rabbit_types:resource_name(), + Terms :: term()) -> rabbit_types:ok_or_error(term())). +-spec(detect_clean_shutdown( + rabbit_types:resource_name()) -> + boolean() | rabbit_types:error(term())). +-spec(read_recovery_terms( + rabbit_types:resource_name()) -> + rabbit_types:ok_or_error2(term(), not_found)). + +-endif. % use_specs + -include("rabbit.hrl"). -define(CLEAN_FILENAME, "clean.dot"). -- cgit v1.2.1 From 7eb7f1b3b2ef46a575236163cdb55342520a6db4 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Tue, 29 Oct 2013 12:34:56 +0000 Subject: fix specs and small renaming --- src/rabbit_clean_shutdown.erl | 6 +++--- src/rabbit_queue_index.erl | 8 +++++--- 2 files changed, 8 insertions(+), 6 deletions(-) diff --git a/src/rabbit_clean_shutdown.erl b/src/rabbit_clean_shutdown.erl index 86e2eecb..37ce414d 100644 --- a/src/rabbit_clean_shutdown.erl +++ b/src/rabbit_clean_shutdown.erl @@ -36,13 +36,13 @@ -spec(recover() -> 'ok'). -spec(start_link() -> rabbit_types:ok_pid_or_error()). -spec(store_recovery_terms( - Name :: rabbit_types:resource_name(), + Name :: rabbit_misc:resource_name(), Terms :: term()) -> rabbit_types:ok_or_error(term())). -spec(detect_clean_shutdown( - rabbit_types:resource_name()) -> + rabbit_misc:resource_name()) -> boolean() | rabbit_types:error(term())). -spec(read_recovery_terms( - rabbit_types:resource_name()) -> + rabbit_misc:resource_name()) -> rabbit_types:ok_or_error2(term(), not_found)). -endif. % use_specs diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index fdcaa0f7..5fef5a3c 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -233,7 +233,7 @@ init(Name, OnSyncFun) -> false = rabbit_file:is_file(Dir), %% is_file == is file or dir State #qistate { on_sync = OnSyncFun }. -shutdown_terms(Name) -> +shutdown_terms(#resource{ name = Name }) -> case rabbit_clean_shutdown:read_recovery_terms(Name) of {error, _} -> []; {ok, Terms1} -> Terms1 @@ -366,14 +366,16 @@ recover(DurableQueues) -> case sets:is_element(QueueDirName, DurableDirectories) of true -> TermsAcc1 = - case rabbit_clean_shutdown:read(QName) of + case rabbit_clean_shutdown:read_recovery_terms( + QName#resource.name) of {error, _} -> TermsAcc; {ok, Terms} -> [Terms | TermsAcc] end, {[QName | DurableAcc], TermsAcc1}; false -> ok = rabbit_file:recursive_delete([QueueDirPath]), - rabbit_clean_shutdown:remove_recovery_terms(QName), + rabbit_clean_shutdown:remove_recovery_terms( + QName#resource.name), {DurableAcc, TermsAcc} end end, {[], []}, QueueDirNames), -- cgit v1.2.1 From c1fa71d74c800a378ceec6e4979ac3d9fa60ade0 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 30 Oct 2013 11:59:23 +0000 Subject: Non-Windows 32 bit platforms tend to only give you 2GB address space per process. --- src/vm_memory_monitor.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl index a07f6c65..e400db42 100644 --- a/src/vm_memory_monitor.erl +++ b/src/vm_memory_monitor.erl @@ -225,7 +225,7 @@ get_vm_limit({win32,_OSname}) -> %% in big trouble anyway. get_vm_limit(_OsType) -> case erlang:system_info(wordsize) of - 4 -> 4*1024*1024*1024; %% 4 GB for 32 bits 2^32 + 4 -> 2*1024*1024*1024; %% 2 GB for 32 bits 2^32 8 -> 256*1024*1024*1024*1024 %% 256 TB for 64 bits 2^48 %%http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_details end. -- cgit v1.2.1 From 81dc6a9a8ebdb39f720a21536ebcae9ecb73369e Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 30 Oct 2013 12:01:07 +0000 Subject: Math is hard, let's go shopping (for a 64 bit OS). --- src/vm_memory_monitor.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl index e400db42..9653d000 100644 --- a/src/vm_memory_monitor.erl +++ b/src/vm_memory_monitor.erl @@ -225,7 +225,7 @@ get_vm_limit({win32,_OSname}) -> %% in big trouble anyway. get_vm_limit(_OsType) -> case erlang:system_info(wordsize) of - 4 -> 2*1024*1024*1024; %% 2 GB for 32 bits 2^32 + 4 -> 2*1024*1024*1024; %% 2 GB for 32 bits 2^31 8 -> 256*1024*1024*1024*1024 %% 256 TB for 64 bits 2^48 %%http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_details end. -- cgit v1.2.1 From 5f6bdb602b6be4ee69dccba9e87b55621a981686 Mon Sep 17 00:00:00 2001 From: Emile Joubert Date: Wed, 30 Oct 2013 13:20:09 +0000 Subject: Track payload size of messages (ignoring sharing) --- include/rabbit.hrl | 2 +- src/rabbit_basic.erl | 5 ++++- src/rabbit_types.erl | 3 ++- src/rabbit_variable_queue.erl | 16 +++++++++++++++- 4 files changed, 22 insertions(+), 4 deletions(-) diff --git a/include/rabbit.hrl b/include/rabbit.hrl index bd7a0eed..c91f3ae5 100644 --- a/include/rabbit.hrl +++ b/include/rabbit.hrl @@ -67,7 +67,7 @@ -record(runtime_parameters, {key, value}). -record(basic_message, {exchange_name, routing_keys = [], content, id, - is_persistent}). + is_persistent, payload_size}). -record(ssl_socket, {tcp, ssl}). -record(delivery, {mandatory, sender, message, msg_seq_no}). diff --git a/src/rabbit_basic.erl b/src/rabbit_basic.erl index 2e825536..aef316d3 100644 --- a/src/rabbit_basic.erl +++ b/src/rabbit_basic.erl @@ -149,13 +149,16 @@ strip_header(#content{properties = Props = #'P_basic'{headers = Headers}} headers = Headers0}}) end. -message(XName, RoutingKey, #content{properties = Props} = DecodedContent) -> +message(XName, RoutingKey, + #content{properties = Props, + payload_fragments_rev = PFR} = DecodedContent) -> try {ok, #basic_message{ exchange_name = XName, content = strip_header(DecodedContent, ?DELETED_HEADER), id = rabbit_guid:gen(), is_persistent = is_message_persistent(DecodedContent), + payload_size = iolist_size(PFR), routing_keys = [RoutingKey | header_routes(Props#'P_basic'.headers)]}} catch diff --git a/src/rabbit_types.erl b/src/rabbit_types.erl index a36613db..23e5e988 100644 --- a/src/rabbit_types.erl +++ b/src/rabbit_types.erl @@ -65,7 +65,8 @@ routing_keys :: [rabbit_router:routing_key()], content :: content(), id :: msg_id(), - is_persistent :: boolean()}). + is_persistent :: boolean(), + payload_size :: pos_integer()}). -type(message() :: basic_message()). -type(delivery() :: #delivery{mandatory :: boolean(), diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index ac2b9f52..244bd5e5 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -22,7 +22,7 @@ fetch/2, drop/2, ack/2, requeue/2, ackfold/4, fold/3, len/1, is_empty/1, depth/1, set_ram_duration_target/2, ram_duration/1, needs_timeout/1, timeout/1, handle_pre_hibernate/1, status/1, invoke/3, - is_duplicate/2, multiple_routing_keys/0]). + is_duplicate/2, multiple_routing_keys/0, payload_size/0]). -export([start/1, stop/0]). @@ -316,6 +316,7 @@ %%---------------------------------------------------------------------------- -rabbit_upgrade({multiple_routing_keys, local, []}). +-rabbit_upgrade({payload_size, local, []}). -ifdef(use_specs). @@ -374,6 +375,7 @@ -spec(ack/2 :: ([ack()], state()) -> {[rabbit_guid:guid()], state()}). -spec(multiple_routing_keys/0 :: () -> 'ok'). +-spec(payload_size/0 :: () -> 'ok'). -endif. @@ -1781,6 +1783,18 @@ multiple_routing_keys() -> end), ok. +payload_size() -> + transform_storage( + fun ({basic_message, ExchangeName, RoutingKeys, + {content, _ClassId, _Properties, _PropertiesBin, _Protocol, + PayloadFragmentsRev} = Content, + MsgId, Persistent}) -> + {ok, {basic_message, ExchangeName, RoutingKeys, + Content, MsgId, Persistent, + iolist_size(PayloadFragmentsRev)}}; + (_) -> {error, corrupt_message} + end), + ok. %% Assumes message store is not running transform_storage(TransformFun) -> -- cgit v1.2.1 From c662255be45888de486f04330249583c3af77805 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 4 Nov 2013 12:03:36 +0000 Subject: handle dets table data properly --- src/rabbit_clean_shutdown.erl | 10 +++++----- src/rabbit_msg_store.erl | 1 - src/rabbit_queue_index.erl | 10 ++++++---- src/rabbit_variable_queue.erl | 2 +- 4 files changed, 12 insertions(+), 11 deletions(-) diff --git a/src/rabbit_clean_shutdown.erl b/src/rabbit_clean_shutdown.erl index 37ce414d..cca85f34 100644 --- a/src/rabbit_clean_shutdown.erl +++ b/src/rabbit_clean_shutdown.erl @@ -51,11 +51,11 @@ -define(CLEAN_FILENAME, "clean.dot"). recover() -> - {ok, Child} = supervisor:start_child(rabbit_sup, - {?MODULE, {?MODULE, start_link, []}, - permanent, ?MAX_WAIT, worker, - [?MODULE]}), - ok = gen_server:call(Child, ready, infinity). + {ok, _Child} = supervisor:start_child(rabbit_sup, + {?MODULE, {?MODULE, start_link, []}, + permanent, ?MAX_WAIT, worker, + [?MODULE]}), + ok. start_link() -> gen_server:start_link(?MODULE, [], []). diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index 9a4439a7..f7bedc9f 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -652,7 +652,6 @@ clear_client(CRef, State = #msstate { cref_to_msg_ids = CTM, init([Server, BaseDir, ClientRefs, StartupFunState]) -> process_flag(trap_exit, true), - ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, [self()]), diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 5fef5a3c..047a9c22 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -233,10 +233,10 @@ init(Name, OnSyncFun) -> false = rabbit_file:is_file(Dir), %% is_file == is file or dir State #qistate { on_sync = OnSyncFun }. -shutdown_terms(#resource{ name = Name }) -> +shutdown_terms(Name) -> case rabbit_clean_shutdown:read_recovery_terms(Name) of - {error, _} -> []; - {ok, Terms1} -> Terms1 + {error, _} -> []; + {ok, {_, Terms1}} -> Terms1 end. recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> @@ -365,14 +365,16 @@ recover(DurableQueues) -> QueueDirPath = filename:join(QueuesDir, QueueDirName), case sets:is_element(QueueDirName, DurableDirectories) of true -> + rabbit_log:info("reading recovery terms...~n", []), TermsAcc1 = case rabbit_clean_shutdown:read_recovery_terms( - QName#resource.name) of + QName) of {error, _} -> TermsAcc; {ok, Terms} -> [Terms | TermsAcc] end, {[QName | DurableAcc], TermsAcc1}; false -> + rabbit_log:info("clearing recovery info!~n", []), ok = rabbit_file:recursive_delete([QueueDirPath]), rabbit_clean_shutdown:remove_recovery_terms( QName#resource.name), diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index ac2b9f52..43e8a3b8 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -391,7 +391,7 @@ start(DurableQueues) -> {AllTerms, StartFunState} = rabbit_queue_index:recover(DurableQueues), start_msg_store( - [Ref || Terms <- AllTerms, + [Ref || {_, Terms} <- AllTerms, begin Ref = proplists:get_value(persistent_ref, Terms), Ref =/= undefined -- cgit v1.2.1 From 60dbe4c72fa88908c800e32a153ead2eeff39e6d Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 4 Nov 2013 12:04:37 +0000 Subject: remove superfluous begin..end block --- src/rabbit_queue_index.erl | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 047a9c22..d858421e 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -352,9 +352,8 @@ bounds(State = #qistate { segments = Segments }) -> recover(DurableQueues) -> ok = rabbit_clean_shutdown:recover(), DurableDict = - dict:from_list([begin - {queue_name_to_dir_name(Queue), Queue} - end || Queue <- DurableQueues ]), + dict:from_list([{queue_name_to_dir_name(Queue), Queue} || + Queue <- DurableQueues ]), QueuesDir = queues_dir(), QueueDirNames = all_queue_directory_names(QueuesDir), DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), -- cgit v1.2.1 From eed8a0caff27e3a69e11bbde1fc7a7c1e5646a8f Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 4 Nov 2013 12:05:12 +0000 Subject: cosmetic --- src/rabbit_queue_index.erl | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index d858421e..87cfa671 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -396,7 +396,8 @@ all_queue_directory_names(Dir) -> blank_state(QueueName) -> blank_state_dir(QueueName, - filename:join(queues_dir(), queue_name_to_dir_name(QueueName))). + filename:join(queues_dir(), + queue_name_to_dir_name(QueueName))). blank_state_dir(Name, Dir) -> {ok, MaxJournal} = -- cgit v1.2.1 From f331b3926c8d4ba4a1a74d81d7c89cb731f675d1 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 4 Nov 2013 12:05:53 +0000 Subject: cosmetic / rename --- src/rabbit_clean_shutdown.erl | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/rabbit_clean_shutdown.erl b/src/rabbit_clean_shutdown.erl index cca85f34..5ee04671 100644 --- a/src/rabbit_clean_shutdown.erl +++ b/src/rabbit_clean_shutdown.erl @@ -48,13 +48,14 @@ -endif. % use_specs -include("rabbit.hrl"). +-define(SERVER, ?MODULE). -define(CLEAN_FILENAME, "clean.dot"). recover() -> {ok, _Child} = supervisor:start_child(rabbit_sup, - {?MODULE, {?MODULE, start_link, []}, + {?SERVER, {?MODULE, start_link, []}, permanent, ?MAX_WAIT, worker, - [?MODULE]}), + [?SERVER]}), ok. start_link() -> -- cgit v1.2.1 From 1ef6f933fba1063eb44ea6ac7c43ea3ed3a4f3a4 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 4 Nov 2013 12:06:05 +0000 Subject: cosmetic --- src/rabbit_clean_shutdown.erl | 1 + 1 file changed, 1 insertion(+) diff --git a/src/rabbit_clean_shutdown.erl b/src/rabbit_clean_shutdown.erl index 5ee04671..199486b3 100644 --- a/src/rabbit_clean_shutdown.erl +++ b/src/rabbit_clean_shutdown.erl @@ -13,6 +13,7 @@ %% The Initial Developer of the Original Code is GoPivotal, Inc. %% Copyright (c) 2007-2013 GoPivotal, Inc. All rights reserved. %% + -module(rabbit_clean_shutdown). -behaviour(gen_server). -- cgit v1.2.1 From eb1cf9fd64182da6a97b7460468347bc9c3db3e5 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 4 Nov 2013 12:30:01 +0000 Subject: cosmetic --- src/rabbit_clean_shutdown.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_clean_shutdown.erl b/src/rabbit_clean_shutdown.erl index 199486b3..dbafe401 100644 --- a/src/rabbit_clean_shutdown.erl +++ b/src/rabbit_clean_shutdown.erl @@ -55,8 +55,8 @@ recover() -> {ok, _Child} = supervisor:start_child(rabbit_sup, {?SERVER, {?MODULE, start_link, []}, - permanent, ?MAX_WAIT, worker, - [?SERVER]}), + permanent, ?MAX_WAIT, worker, + [?SERVER]}), ok. start_link() -> -- cgit v1.2.1 From 68b64f3f1e1f3802da9ee2ce70e1d8dfd08b8a92 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Thu, 5 Dec 2013 10:57:23 +0000 Subject: Use the directory name as a key --- src/rabbit_queue_index.erl | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 87cfa671..31111b0f 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -234,26 +234,27 @@ init(Name, OnSyncFun) -> State #qistate { on_sync = OnSyncFun }. shutdown_terms(Name) -> - case rabbit_clean_shutdown:read_recovery_terms(Name) of + #qistate { dir = Dir } = blank_state(Name), + case rabbit_clean_shutdown:read_recovery_terms(Dir) of {error, _} -> []; {ok, {_, Terms1}} -> Terms1 end. recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> - State = blank_state(Name), + State = #qistate { dir = Dir } = blank_state(Name), State1 = State #qistate { on_sync = OnSyncFun }, CleanShutdown = - rabbit_clean_shutdown:detect_clean_shutdown(Name#resource.name), + rabbit_clean_shutdown:detect_clean_shutdown(Dir), case CleanShutdown andalso MsgStoreRecovered of true -> RecoveredCounts = proplists:get_value(segments, Terms, []), init_clean(RecoveredCounts, State1); false -> init_dirty(CleanShutdown, ContainsCheckFun, State1) end. -terminate(Terms, State = #qistate { name = Name }) -> +terminate(Terms, State = #qistate { name = Name, dir = Dir }) -> {SegmentCounts, State1} = terminate(State), rabbit_clean_shutdown:store_recovery_terms( - Name, [{segments, SegmentCounts} | Terms]), + Dir, [{segments, SegmentCounts} | Terms]), State1. delete_and_terminate(State) -> @@ -364,19 +365,20 @@ recover(DurableQueues) -> QueueDirPath = filename:join(QueuesDir, QueueDirName), case sets:is_element(QueueDirName, DurableDirectories) of true -> - rabbit_log:info("reading recovery terms...~n", []), TermsAcc1 = case rabbit_clean_shutdown:read_recovery_terms( - QName) of + QueueDirPath) of {error, _} -> TermsAcc; {ok, Terms} -> [Terms | TermsAcc] end, + rabbit_log:info("reading recovery terms: ~p~n", + [TermsAcc1]), {[QName | DurableAcc], TermsAcc1}; false -> rabbit_log:info("clearing recovery info!~n", []), ok = rabbit_file:recursive_delete([QueueDirPath]), rabbit_clean_shutdown:remove_recovery_terms( - QName#resource.name), + QueueDirPath), {DurableAcc, TermsAcc} end end, {[], []}, QueueDirNames), @@ -395,11 +397,10 @@ all_queue_directory_names(Dir) -> %%---------------------------------------------------------------------------- blank_state(QueueName) -> - blank_state_dir(QueueName, - filename:join(queues_dir(), + blank_state_dir(filename:join(queues_dir(), queue_name_to_dir_name(QueueName))). -blank_state_dir(Name, Dir) -> +blank_state_dir(Dir) -> {ok, MaxJournal} = application:get_env(rabbit, queue_index_max_journal_entries), #qistate { dir = Dir, @@ -408,8 +409,7 @@ blank_state_dir(Name, Dir) -> dirty_count = 0, max_journal_entries = MaxJournal, on_sync = fun (_) -> ok end, - unconfirmed = gb_sets:new(), - name = Name }. + unconfirmed = gb_sets:new() }. init_clean(RecoveredCounts, State) -> %% Load the journal. Since this is a clean recovery this (almost) -- cgit v1.2.1 From e7512a20b72b203a53bdc456814df58a72d75696 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Thu, 5 Dec 2013 11:05:30 +0000 Subject: Cosmetic --- src/rabbit_queue_index.erl | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 31111b0f..7981f690 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -251,7 +251,7 @@ recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> false -> init_dirty(CleanShutdown, ContainsCheckFun, State1) end. -terminate(Terms, State = #qistate { name = Name, dir = Dir }) -> +terminate(Terms, State = #qistate { dir = Dir }) -> {SegmentCounts, State1} = terminate(State), rabbit_clean_shutdown:store_recovery_terms( Dir, [{segments, SegmentCounts} | Terms]), @@ -371,11 +371,8 @@ recover(DurableQueues) -> {error, _} -> TermsAcc; {ok, Terms} -> [Terms | TermsAcc] end, - rabbit_log:info("reading recovery terms: ~p~n", - [TermsAcc1]), {[QName | DurableAcc], TermsAcc1}; false -> - rabbit_log:info("clearing recovery info!~n", []), ok = rabbit_file:recursive_delete([QueueDirPath]), rabbit_clean_shutdown:remove_recovery_terms( QueueDirPath), -- cgit v1.2.1 From fdd3ad2c91ea12e251bf67c2ff800e41fda4619a Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Thu, 5 Dec 2013 11:10:10 +0000 Subject: rabbit_clean_shutdown => rabbit_recovery_indexes --- src/rabbit_clean_shutdown.erl | 103 ---------------------------------------- src/rabbit_recovery_indexes.erl | 103 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 103 insertions(+), 103 deletions(-) delete mode 100644 src/rabbit_clean_shutdown.erl create mode 100644 src/rabbit_recovery_indexes.erl diff --git a/src/rabbit_clean_shutdown.erl b/src/rabbit_clean_shutdown.erl deleted file mode 100644 index dbafe401..00000000 --- a/src/rabbit_clean_shutdown.erl +++ /dev/null @@ -1,103 +0,0 @@ -%% The contents of this file are subject to the Mozilla Public License -%% Version 1.1 (the "License"); you may not use this file except in -%% compliance with the License. You may obtain a copy of the License -%% at http://www.mozilla.org/MPL/ -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and -%% limitations under the License. -%% -%% The Original Code is RabbitMQ. -%% -%% The Initial Developer of the Original Code is GoPivotal, Inc. -%% Copyright (c) 2007-2013 GoPivotal, Inc. All rights reserved. -%% - --module(rabbit_clean_shutdown). - --behaviour(gen_server). - --export([recover/0, - start_link/0, - store_recovery_terms/2, - detect_clean_shutdown/1, - read_recovery_terms/1, - remove_recovery_terms/1]). - --export([init/1, - handle_call/3, - handle_cast/2, - handle_info/2, - terminate/2, - code_change/3]). - --ifdef(use_specs). - --spec(recover() -> 'ok'). --spec(start_link() -> rabbit_types:ok_pid_or_error()). --spec(store_recovery_terms( - Name :: rabbit_misc:resource_name(), - Terms :: term()) -> rabbit_types:ok_or_error(term())). --spec(detect_clean_shutdown( - rabbit_misc:resource_name()) -> - boolean() | rabbit_types:error(term())). --spec(read_recovery_terms( - rabbit_misc:resource_name()) -> - rabbit_types:ok_or_error2(term(), not_found)). - --endif. % use_specs - --include("rabbit.hrl"). --define(SERVER, ?MODULE). --define(CLEAN_FILENAME, "clean.dot"). - -recover() -> - {ok, _Child} = supervisor:start_child(rabbit_sup, - {?SERVER, {?MODULE, start_link, []}, - permanent, ?MAX_WAIT, worker, - [?SERVER]}), - ok. - -start_link() -> - gen_server:start_link(?MODULE, [], []). - -store_recovery_terms(Name, Terms) -> - dets:insert(?MODULE, {Name, Terms}). - -detect_clean_shutdown(Name) -> - dets:member(?MODULE, Name). - -read_recovery_terms(Name) -> - case dets:lookup(?MODULE, Name) of - [Terms] -> {ok, Terms}; - _ -> {error, not_found} - end. - -remove_recovery_terms(Name) -> - dets:delete(?MODULE, Name). - -init(_) -> - File = filename:join([rabbit_mnesia:dir(), "queues", ?CLEAN_FILENAME]), - {ok, _} = dets:open_file(?MODULE, [{file, File}, - {ram_file, true}, - {auto_save, infinity}]), - {ok, undefined}. - -handle_call(ready, _, State) -> - {reply, ok, State}; -handle_call(Msg, _, State) -> - {stop, {unexpected_call, Msg}, State}. - -handle_cast(Msg, State) -> - {stop, {unexpected_cast, Msg}, State}. - -handle_info(_Info, State) -> - {noreply, State}. - -terminate(_Reason, _State) -> - ok = dets:sync(?MODULE). - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - diff --git a/src/rabbit_recovery_indexes.erl b/src/rabbit_recovery_indexes.erl new file mode 100644 index 00000000..96d0187a --- /dev/null +++ b/src/rabbit_recovery_indexes.erl @@ -0,0 +1,103 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License +%% at http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and +%% limitations under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is GoPivotal, Inc. +%% Copyright (c) 2007-2013 GoPivotal, Inc. All rights reserved. +%% + +-module(rabbit_recovery_indexes). + +-behaviour(gen_server). + +-export([recover/0, + start_link/0, + store_recovery_terms/2, + detect_clean_shutdown/1, + read_recovery_terms/1, + remove_recovery_terms/1]). + +-export([init/1, + handle_call/3, + handle_cast/2, + handle_info/2, + terminate/2, + code_change/3]). + +-ifdef(use_specs). + +-spec(recover() -> 'ok'). +-spec(start_link() -> rabbit_types:ok_pid_or_error()). +-spec(store_recovery_terms( + Name :: rabbit_misc:resource_name(), + Terms :: term()) -> rabbit_types:ok_or_error(term())). +-spec(detect_clean_shutdown( + rabbit_misc:resource_name()) -> + boolean() | rabbit_types:error(term())). +-spec(read_recovery_terms( + rabbit_misc:resource_name()) -> + rabbit_types:ok_or_error2(term(), not_found)). + +-endif. % use_specs + +-include("rabbit.hrl"). +-define(SERVER, ?MODULE). +-define(CLEAN_FILENAME, "clean.dot"). + +recover() -> + {ok, _Child} = supervisor:start_child(rabbit_sup, + {?SERVER, {?MODULE, start_link, []}, + permanent, ?MAX_WAIT, worker, + [?SERVER]}), + ok. + +start_link() -> + gen_server:start_link(?MODULE, [], []). + +store_recovery_terms(Name, Terms) -> + dets:insert(?MODULE, {Name, Terms}). + +detect_clean_shutdown(Name) -> + dets:member(?MODULE, Name). + +read_recovery_terms(Name) -> + case dets:lookup(?MODULE, Name) of + [Terms] -> {ok, Terms}; + _ -> {error, not_found} + end. + +remove_recovery_terms(Name) -> + dets:delete(?MODULE, Name). + +init(_) -> + File = filename:join([rabbit_mnesia:dir(), "queues", ?CLEAN_FILENAME]), + {ok, _} = dets:open_file(?MODULE, [{file, File}, + {ram_file, true}, + {auto_save, infinity}]), + {ok, undefined}. + +handle_call(ready, _, State) -> + {reply, ok, State}; +handle_call(Msg, _, State) -> + {stop, {unexpected_call, Msg}, State}. + +handle_cast(Msg, State) -> + {stop, {unexpected_cast, Msg}, State}. + +handle_info(_Info, State) -> + {noreply, State}. + +terminate(_Reason, _State) -> + ok = dets:sync(?MODULE). + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + -- cgit v1.2.1 From 5c39d47a8b9f2b71984d3184a5af3cc542147071 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Thu, 5 Dec 2013 11:12:14 +0000 Subject: Cosmetic (ish) / Refactor Rename {detect => had}_clean_shutdown, remove extraneous handle_call clause. --- src/rabbit_queue_index.erl | 2 +- src/rabbit_recovery_indexes.erl | 8 +++----- 2 files changed, 4 insertions(+), 6 deletions(-) diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index 7981f690..fe7ab993 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -244,7 +244,7 @@ recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> State = #qistate { dir = Dir } = blank_state(Name), State1 = State #qistate { on_sync = OnSyncFun }, CleanShutdown = - rabbit_clean_shutdown:detect_clean_shutdown(Dir), + rabbit_clean_shutdown:had_clean_shutdown(Dir), case CleanShutdown andalso MsgStoreRecovered of true -> RecoveredCounts = proplists:get_value(segments, Terms, []), init_clean(RecoveredCounts, State1); diff --git a/src/rabbit_recovery_indexes.erl b/src/rabbit_recovery_indexes.erl index 96d0187a..a9bbff62 100644 --- a/src/rabbit_recovery_indexes.erl +++ b/src/rabbit_recovery_indexes.erl @@ -21,7 +21,7 @@ -export([recover/0, start_link/0, store_recovery_terms/2, - detect_clean_shutdown/1, + had_clean_shutdown/1, read_recovery_terms/1, remove_recovery_terms/1]). @@ -39,7 +39,7 @@ -spec(store_recovery_terms( Name :: rabbit_misc:resource_name(), Terms :: term()) -> rabbit_types:ok_or_error(term())). --spec(detect_clean_shutdown( +-spec(had_clean_shutdown( rabbit_misc:resource_name()) -> boolean() | rabbit_types:error(term())). -spec(read_recovery_terms( @@ -65,7 +65,7 @@ start_link() -> store_recovery_terms(Name, Terms) -> dets:insert(?MODULE, {Name, Terms}). -detect_clean_shutdown(Name) -> +had_clean_shutdown(Name) -> dets:member(?MODULE, Name). read_recovery_terms(Name) -> @@ -84,8 +84,6 @@ init(_) -> {auto_save, infinity}]), {ok, undefined}. -handle_call(ready, _, State) -> - {reply, ok, State}; handle_call(Msg, _, State) -> {stop, {unexpected_call, Msg}, State}. -- cgit v1.2.1 From 134123fb9eec3b876fd6de16ffce79c1f38ee4e2 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Thu, 5 Dec 2013 11:13:56 +0000 Subject: Oops - change module name for all call sites --- src/rabbit_queue_index.erl | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index fe7ab993..eb1649e0 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -235,7 +235,7 @@ init(Name, OnSyncFun) -> shutdown_terms(Name) -> #qistate { dir = Dir } = blank_state(Name), - case rabbit_clean_shutdown:read_recovery_terms(Dir) of + case rabbit_recover_indexes:read_recovery_terms(Dir) of {error, _} -> []; {ok, {_, Terms1}} -> Terms1 end. @@ -244,7 +244,7 @@ recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> State = #qistate { dir = Dir } = blank_state(Name), State1 = State #qistate { on_sync = OnSyncFun }, CleanShutdown = - rabbit_clean_shutdown:had_clean_shutdown(Dir), + rabbit_recovery_indexes:had_clean_shutdown(Dir), case CleanShutdown andalso MsgStoreRecovered of true -> RecoveredCounts = proplists:get_value(segments, Terms, []), init_clean(RecoveredCounts, State1); @@ -253,7 +253,7 @@ recover(Name, Terms, MsgStoreRecovered, ContainsCheckFun, OnSyncFun) -> terminate(Terms, State = #qistate { dir = Dir }) -> {SegmentCounts, State1} = terminate(State), - rabbit_clean_shutdown:store_recovery_terms( + rabbit_recovery_indexes:store_recovery_terms( Dir, [{segments, SegmentCounts} | Terms]), State1. @@ -351,7 +351,7 @@ bounds(State = #qistate { segments = Segments }) -> {LowSeqId, NextSeqId, State}. recover(DurableQueues) -> - ok = rabbit_clean_shutdown:recover(), + ok = rabbit_recovery_indexes:recover(), DurableDict = dict:from_list([{queue_name_to_dir_name(Queue), Queue} || Queue <- DurableQueues ]), @@ -366,7 +366,7 @@ recover(DurableQueues) -> case sets:is_element(QueueDirName, DurableDirectories) of true -> TermsAcc1 = - case rabbit_clean_shutdown:read_recovery_terms( + case rabbit_recovery_indexes:read_recovery_terms( QueueDirPath) of {error, _} -> TermsAcc; {ok, Terms} -> [Terms | TermsAcc] @@ -374,7 +374,7 @@ recover(DurableQueues) -> {[QName | DurableAcc], TermsAcc1}; false -> ok = rabbit_file:recursive_delete([QueueDirPath]), - rabbit_clean_shutdown:remove_recovery_terms( + rabbit_recovery_indexes:remove_recovery_terms( QueueDirPath), {DurableAcc, TermsAcc} end -- cgit v1.2.1 From b034c309047e46ba17f7e3c555c6c89384e72cf6 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 9 Dec 2013 11:03:56 +0000 Subject: Reduce distance to default --- src/rabbit_msg_store.erl | 1 + src/rabbit_queue_index.erl | 24 +++++++++++++++++------- 2 files changed, 18 insertions(+), 7 deletions(-) diff --git a/src/rabbit_msg_store.erl b/src/rabbit_msg_store.erl index f7bedc9f..9a4439a7 100644 --- a/src/rabbit_msg_store.erl +++ b/src/rabbit_msg_store.erl @@ -652,6 +652,7 @@ clear_client(CRef, State = #msstate { cref_to_msg_ids = CTM, init([Server, BaseDir, ClientRefs, StartupFunState]) -> process_flag(trap_exit, true), + ok = file_handle_cache:register_callback(?MODULE, set_maximum_since_use, [self()]), diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index eb1649e0..eb5342a3 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -20,6 +20,9 @@ terminate/2, delete_and_terminate/1, publish/5, deliver/2, ack/2, sync/1, needs_sync/1, flush/1, read/3, next_segment_boundary/1, bounds/1, recover/1]). + +-export([scan/3]). + -export([add_queue_ttl/0, avoid_zeroes/0]). -define(CLEAN_FILENAME, "clean.dot"). @@ -219,6 +222,11 @@ -spec(bounds/1 :: (qistate()) -> {non_neg_integer(), non_neg_integer(), qistate()}). -spec(recover/1 :: ([rabbit_amqqueue:name()]) -> {[[any()]], {walker(A), A}}). +-spec(scan/3 :: (file:filename(), + fun ((seq_id(), rabbit_types:msg_id(), + rabbit_types:message_properties(), boolean(), + ('del' | 'no_del'), ('ack' | 'no_ack'), A) -> A), + A) -> A). -spec(add_queue_ttl/0 :: () -> 'ok'). -endif. @@ -352,16 +360,14 @@ bounds(State = #qistate { segments = Segments }) -> recover(DurableQueues) -> ok = rabbit_recovery_indexes:recover(), - DurableDict = - dict:from_list([{queue_name_to_dir_name(Queue), Queue} || - Queue <- DurableQueues ]), + DurableDict = dict:from_list([{queue_name_to_dir_name(Queue), Queue} || + Queue <- DurableQueues ]), QueuesDir = queues_dir(), QueueDirNames = all_queue_directory_names(QueuesDir), DurableDirectories = sets:from_list(dict:fetch_keys(DurableDict)), {DurableQueueNames, DurableTerms} = lists:foldl( fun (QueueDirName, {DurableAcc, TermsAcc}) -> - QName = dict:fetch(QueueDirName, DurableDict), QueueDirPath = filename:join(QueuesDir, QueueDirName), case sets:is_element(QueueDirName, DurableDirectories) of true -> @@ -371,7 +377,8 @@ recover(DurableQueues) -> {error, _} -> TermsAcc; {ok, Terms} -> [Terms | TermsAcc] end, - {[QName | DurableAcc], TermsAcc1}; + {[dict:fetch(QueueDirName, DurableDict) | DurableAcc], + TermsAcc1}; false -> ok = rabbit_file:recursive_delete([QueueDirPath]), rabbit_recovery_indexes:remove_recovery_terms( @@ -394,8 +401,8 @@ all_queue_directory_names(Dir) -> %%---------------------------------------------------------------------------- blank_state(QueueName) -> - blank_state_dir(filename:join(queues_dir(), - queue_name_to_dir_name(QueueName))). + blank_state_dir( + filename:join(queues_dir(), queue_name_to_dir_name(QueueName))). blank_state_dir(Dir) -> {ok, MaxJournal} = @@ -536,6 +543,9 @@ queue_index_walker_reader(QueueName, Gatherer) -> end, ok, State), ok = gatherer:finish(Gatherer). +scan(Dir, Fun, Acc) -> + scan_segments(Fun, Acc, blank_state_dir(Dir)). + scan_segments(Fun, Acc, State) -> State1 = #qistate { segments = Segments, dir = Dir } = recover_journal(State), -- cgit v1.2.1 From ec9f62a3ef22f71a879527c6a6855e2f2de7e400 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 9 Dec 2013 14:06:26 +0000 Subject: Proper check for recovery data deletion and sync post startup --- src/rabbit.erl | 3 ++- src/rabbit_queue_index.erl | 2 +- src/rabbit_recovery_indexes.erl | 13 ++++++++++--- 3 files changed, 13 insertions(+), 5 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 1b7fe6da..884db0bf 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -592,7 +592,8 @@ recover() -> Qs = rabbit_amqqueue:recover(), ok = rabbit_binding:recover(rabbit_exchange:recover(), [QName || #amqqueue{name = QName} <- Qs]), - rabbit_amqqueue:start(Qs). + rabbit_amqqueue:start(Qs), + ok = rabbit_recovery_indexes:flush(). maybe_insert_default_data() -> case rabbit_table:is_empty() of diff --git a/src/rabbit_queue_index.erl b/src/rabbit_queue_index.erl index eb5342a3..c5ffdf74 100644 --- a/src/rabbit_queue_index.erl +++ b/src/rabbit_queue_index.erl @@ -243,7 +243,7 @@ init(Name, OnSyncFun) -> shutdown_terms(Name) -> #qistate { dir = Dir } = blank_state(Name), - case rabbit_recover_indexes:read_recovery_terms(Dir) of + case rabbit_recovery_indexes:read_recovery_terms(Dir) of {error, _} -> []; {ok, {_, Terms1}} -> Terms1 end. diff --git a/src/rabbit_recovery_indexes.erl b/src/rabbit_recovery_indexes.erl index a9bbff62..dd7f0696 100644 --- a/src/rabbit_recovery_indexes.erl +++ b/src/rabbit_recovery_indexes.erl @@ -23,7 +23,8 @@ store_recovery_terms/2, had_clean_shutdown/1, read_recovery_terms/1, - remove_recovery_terms/1]). + remove_recovery_terms/1, + flush/0]). -export([init/1, handle_call/3, @@ -66,7 +67,7 @@ store_recovery_terms(Name, Terms) -> dets:insert(?MODULE, {Name, Terms}). had_clean_shutdown(Name) -> - dets:member(?MODULE, Name). + ok == remove_recovery_terms(Name). read_recovery_terms(Name) -> case dets:lookup(?MODULE, Name) of @@ -75,7 +76,13 @@ read_recovery_terms(Name) -> end. remove_recovery_terms(Name) -> - dets:delete(?MODULE, Name). + case dets:member(?MODULE, Name) of + true -> dets:delete(?MODULE, Name); + false -> {error, not_found} + end. + +flush() -> + ok = dets:sync(?MODULE). init(_) -> File = filename:join([rabbit_mnesia:dir(), "queues", ?CLEAN_FILENAME]), -- cgit v1.2.1 From 746e5c7540a7c6c68818d3a5290dd342eb705522 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Wed, 15 Jan 2014 17:38:58 +0000 Subject: Better idea: suppress this message getting logged during boot only. --- src/rabbit.erl | 8 ++++++-- src/rabbit_error_logger_file_h.erl | 13 ++++--------- 2 files changed, 10 insertions(+), 11 deletions(-) diff --git a/src/rabbit.erl b/src/rabbit.erl index 045c5d58..dd8da731 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -20,8 +20,8 @@ -export([start/0, boot/0, stop/0, stop_and_halt/0, await_startup/0, status/0, is_running/0, - is_running/1, environment/0, rotate_logs/1, force_event_refresh/0, - start_fhc/0]). + is_running/1, is_booting/0, is_booting/1, environment/0, + rotate_logs/1, force_event_refresh/0, start_fhc/0]). -export([start/2, stop/1]). @@ -420,6 +420,10 @@ is_running() -> is_running(node()). is_running(Node) -> rabbit_nodes:is_process_running(Node, rabbit). +is_booting() -> is_booting(node()). + +is_booting(Node) -> rabbit_nodes:is_process_running(Node, rabbit_boot). + environment() -> lists:keysort(1, [P || P = {K, _} <- application:get_all_env(rabbit), K =/= default_pass]). diff --git a/src/rabbit_error_logger_file_h.erl b/src/rabbit_error_logger_file_h.erl index 06ce6666..c56b8c32 100644 --- a/src/rabbit_error_logger_file_h.erl +++ b/src/rabbit_error_logger_file_h.erl @@ -86,18 +86,13 @@ handle_event({info_report, _, {_, std_info, _}}, State) -> %% of messages intended for the old version of the node. The emulator %% logs an event for every one of those messages; in extremis this can %% bring the server to its knees just logging "Discarding..." -%% again and again. So just log the first one, then go silent. +%% again and again. Let's not. handle_event(Event = {error, _, {emulator, _, ["Discarding message" ++ _]}}, State) -> - case get(discarding_message_seen) of - true -> {ok, State}; - undefined -> put(discarding_message_seen, true), - error_logger_file_h:handle_event(Event, State) + case rabbit:is_booting() of + true -> {ok, State}; + false -> error_logger_file_h:handle_event(Event, State) end; -%% Clear this state if we log anything else (but not a progress report) -handle_event(Event = {info_msg, _, _}, State) -> - erase(discarding_message_seen), - error_logger_file_h:handle_event(Event, State); handle_event(Event, State) -> error_logger_file_h:handle_event(Event, State). -- cgit v1.2.1 From 65df23437b13c766de0bccd6be9f04cf061402fb Mon Sep 17 00:00:00 2001 From: Michael Klishin Date: Tue, 21 Jan 2014 16:45:47 +0400 Subject: Leave a note about com.rabbitmq.tools.Host#listConnections --- src/rabbit_misc.erl | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 80e160d9..16990d02 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -680,6 +680,8 @@ sort_field_table(Arguments) -> %% This provides a string representation of a pid that is the same %% regardless of what node we are running on. The representation also %% permits easy identification of the pid's node. +%% +%% com.rabbitmq.tools.Host#listConnections relies on this format. pid_to_string(Pid) when is_pid(Pid) -> %% see http://erlang.org/doc/apps/erts/erl_ext_dist.html (8.10 and %% 8.7) -- cgit v1.2.1 From 375b9b6a35e09665d16f973f18c82b3878b460da Mon Sep 17 00:00:00 2001 From: Michael Klishin Date: Tue, 21 Jan 2014 16:46:21 +0400 Subject: Be more specific --- src/rabbit_misc.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/rabbit_misc.erl b/src/rabbit_misc.erl index 16990d02..e8e8c015 100644 --- a/src/rabbit_misc.erl +++ b/src/rabbit_misc.erl @@ -681,7 +681,7 @@ sort_field_table(Arguments) -> %% regardless of what node we are running on. The representation also %% permits easy identification of the pid's node. %% -%% com.rabbitmq.tools.Host#listConnections relies on this format. +%% com.rabbitmq.tools.Host#listConnections in the Java client relies on this format. pid_to_string(Pid) when is_pid(Pid) -> %% see http://erlang.org/doc/apps/erts/erl_ext_dist.html (8.10 and %% 8.7) -- cgit v1.2.1 From 1fc38bf1fcdafb97613c309fe2f3a0064c8bd471 Mon Sep 17 00:00:00 2001 From: Michael Klishin Date: Fri, 24 Jan 2014 13:33:06 +0400 Subject: Fix a syntax error in config example --- docs/rabbitmq.config.example | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/rabbitmq.config.example b/docs/rabbitmq.config.example index c0d6cc70..7d6b80a7 100644 --- a/docs/rabbitmq.config.example +++ b/docs/rabbitmq.config.example @@ -341,7 +341,7 @@ %% {reconnect_delay, 2.5} %% ]} %% End of my_first_shovel - ]}, + ]} %% Rather than specifying some values per-shovel, you can specify %% them for all shovels here. %% -- cgit v1.2.1 From 9b8bb75f43acf1c1af97f91d5dee039fc07af589 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Sun, 2 Feb 2014 11:43:00 +0000 Subject: make vhost deletion more atomic and cope with concurrent x/q deletions --- src/rabbit_vhost.erl | 60 +++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 45 insertions(+), 15 deletions(-) diff --git a/src/rabbit_vhost.erl b/src/rabbit_vhost.erl index 047bce77..d658c9f3 100644 --- a/src/rabbit_vhost.erl +++ b/src/rabbit_vhost.erl @@ -77,22 +77,52 @@ add(VHostPath) -> R. delete(VHostPath) -> - %% FIXME: We are forced to delete the queues and exchanges outside - %% the TX below. Queue deletion involves sending messages to the queue - %% process, which in turn results in further mnesia actions and - %% eventually the termination of that process. Exchange deletion causes - %% notifications which must be sent outside the TX rabbit_log:info("Deleting vhost '~s'~n", [VHostPath]), - [{ok,_} = rabbit_amqqueue:delete(Q, false, false) || - Q <- rabbit_amqqueue:list(VHostPath)], - [ok = rabbit_exchange:delete(Name, false) || - #exchange{name = Name} <- rabbit_exchange:list(VHostPath)], - R = rabbit_misc:execute_mnesia_transaction( - with(VHostPath, fun () -> - ok = internal_delete(VHostPath) - end)), - ok = rabbit_event:notify(vhost_deleted, [{name, VHostPath}]), - R. + %% We get hold of all the exchanges and queues in a vhost and then + %% delete the vhost; all in one tx. This reduces the paths by + %% which new exchanges and queues can be created in that vhost. + %% + %% TODO It is still possible for resources to get created in the + %% deleted vhost via existing connections, which is effectively a + %% leak and there is no way to subsequently delete those + %% resources, at least not via AMQP & ctl. To prevent that we + %% should really first remove the vhost entry, then close all + %% connections associated with the vhost, and only then list the + %% resources. + case rabbit_misc:execute_mnesia_transaction( + with(VHostPath, fun () -> + Xs = rabbit_exchange:list(VHostPath), + Qs = rabbit_amqqueue:list(VHostPath), + ok = internal_delete(VHostPath), + {ok, Xs, Qs} + end)) of + {ok, Xs, Qs} -> + %% we need to cope with (by ignoring) concurrent deletion + %% of exchanges/queues. + [assert_benign(rabbit_exchange:delete(Name, false)) || + #exchange{name = Name} <- Xs], + %% TODO: for efficiency, perform these deletions in parallel + [assert_benign(rabbit_amqqueue:with( + Name, fun (Q) -> rabbit_amqqueue:delete( + Q, false, false) + end)) || + #amqqueue{name = Name} <- Qs], + ok = rabbit_event:notify(vhost_deleted, [{name, VHostPath}]); + Other -> + Other + end. + +assert_benign(ok) -> ok; +assert_benign({ok, _}) -> ok; +assert_benign({error, not_found}) -> ok; +assert_benign({error, {absent, Q}}) -> + %% We have a durable queue on a down node. Removing the mnesia + %% entries here is safe. If/when the down node restarts, it will + %% clear out the on-disk storage of the queue. + case rabbit_amqqueue:internal_delete(Q#amqqueue.name) of + ok -> ok; + {error, not_found} -> ok + end. internal_delete(VHostPath) -> [ok = rabbit_auth_backend_internal:clear_permissions( -- cgit v1.2.1 From 2db19955ce3460511ddc3bf6824b125e8dfa596d Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Sun, 2 Feb 2014 12:49:31 +0000 Subject: better test coverage --- src/rabbit_tests.erl | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index 2d6ff73b..b4e180a6 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -1042,6 +1042,9 @@ test_user_management() -> ok = control_action(add_vhost, ["/testhost"]), ok = control_action(set_permissions, ["foo", ".*", ".*", ".*"], [{"-p", "/testhost"}]), + {new, _} = rabbit_amqqueue:declare( + rabbit_misc:r(<<"/testhost">>, queue, <<"test">>), + true, false, [], none), ok = control_action(delete_vhost, ["/testhost"]), %% user deletion -- cgit v1.2.1 From 3bac56ed584cede14a31efa3dfad3415e1d14c17 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Thu, 6 Feb 2014 13:30:57 +0000 Subject: transactional and side-effect-free vhost deletion --- src/rabbit_auth_backend_internal.erl | 16 +++++++++++++++- src/rabbit_runtime_parameters.erl | 13 +++++++++++-- src/rabbit_vhost.erl | 11 ++--------- 3 files changed, 28 insertions(+), 12 deletions(-) diff --git a/src/rabbit_auth_backend_internal.erl b/src/rabbit_auth_backend_internal.erl index ebeac1f7..98e1e72f 100644 --- a/src/rabbit_auth_backend_internal.erl +++ b/src/rabbit_auth_backend_internal.erl @@ -25,7 +25,8 @@ -export([add_user/2, delete_user/1, lookup_user/1, change_password/2, clear_password/1, hash_password/1, change_password_hash/2, - set_tags/2, set_permissions/5, clear_permissions/2]). + set_tags/2, set_permissions/5, clear_permissions/2, + clear_vhost_permissions/1]). -export([user_info_keys/0, perms_info_keys/0, user_perms_info_keys/0, vhost_perms_info_keys/0, user_vhost_perms_info_keys/0, @@ -56,6 +57,7 @@ regexp(), regexp(), regexp()) -> 'ok'). -spec(clear_permissions/2 :: (rabbit_types:username(), rabbit_types:vhost()) -> 'ok'). +-spec(clear_vhost_permissions/1 :: (rabbit_types:vhost()) -> 'ok'). -spec(user_info_keys/0 :: () -> rabbit_types:info_keys()). -spec(perms_info_keys/0 :: () -> rabbit_types:info_keys()). -spec(user_perms_info_keys/0 :: () -> rabbit_types:info_keys()). @@ -254,6 +256,18 @@ clear_permissions(Username, VHostPath) -> virtual_host = VHostPath}}) end)). +%% must be run inside a tx +clear_vhost_permissions(VHostPath) -> + [ok = mnesia:delete_object(rabbit_user_permission, R, write) || + R <- mnesia:match_object( + rabbit_user_permission, + #user_permission{user_vhost = #user_vhost{ + username = '_', + virtual_host = VHostPath}, + permission = '_'}, + write)], + ok. + update_user(Username, Fun) -> rabbit_misc:execute_mnesia_transaction( rabbit_misc:with_user( diff --git a/src/rabbit_runtime_parameters.erl b/src/rabbit_runtime_parameters.erl index 18b9fbb8..13802a61 100644 --- a/src/rabbit_runtime_parameters.erl +++ b/src/rabbit_runtime_parameters.erl @@ -18,8 +18,8 @@ -include("rabbit.hrl"). --export([parse_set/4, set/4, set_any/4, clear/3, clear_any/3, list/0, list/1, - list_component/1, list/2, list_formatted/1, lookup/3, +-export([parse_set/4, set/4, set_any/4, clear/3, clear_any/3, clear_vhost/1, + list/0, list/1, list_component/1, list/2, list_formatted/1, lookup/3, value/3, value/4, info_keys/0]). -export([set_global/2, value_global/1, value_global/2]). @@ -41,6 +41,7 @@ -> ok_or_error_string()). -spec(clear_any/3 :: (rabbit_types:vhost(), binary(), binary()) -> ok_or_error_string()). +-spec(clear_vhost/1 :: (rabbit_types:vhost()) -> 'ok'). -spec(list/0 :: () -> [rabbit_types:infos()]). -spec(list/1 :: (rabbit_types:vhost() | '_') -> [rabbit_types:infos()]). -spec(list_component/1 :: (binary()) -> [rabbit_types:infos()]). @@ -147,6 +148,14 @@ mnesia_clear(VHost, Component, Name) -> end, ok = rabbit_misc:execute_mnesia_transaction(rabbit_vhost:with(VHost, F)). +%% must be run inside a tx +%% NB: this does not issue notifications, unlike clear/3 +%% NB: this does delete policies too, unlike clear/3 +clear_vhost(VHost) -> + [ok = mnesia:delete_object(?TABLE, R, write) || + R <- mnesia:match_object(?TABLE, c({VHost, '_', '_'}, '_'), write)], + ok. + list() -> [p(P) || #runtime_parameters{ key = {_VHost, Comp, _Name}} = P <- rabbit_misc:dirty_read_all(?TABLE), Comp /= <<"policy">>]. diff --git a/src/rabbit_vhost.erl b/src/rabbit_vhost.erl index d658c9f3..a2c37d4a 100644 --- a/src/rabbit_vhost.erl +++ b/src/rabbit_vhost.erl @@ -125,15 +125,8 @@ assert_benign({error, {absent, Q}}) -> end. internal_delete(VHostPath) -> - [ok = rabbit_auth_backend_internal:clear_permissions( - proplists:get_value(user, Info), VHostPath) - || Info <- rabbit_auth_backend_internal:list_vhost_permissions(VHostPath)], - [ok = rabbit_runtime_parameters:clear(VHostPath, - proplists:get_value(component, Info), - proplists:get_value(name, Info)) - || Info <- rabbit_runtime_parameters:list(VHostPath)], - [ok = rabbit_policy:delete(VHostPath, proplists:get_value(name, Info)) - || Info <- rabbit_policy:list(VHostPath)], + ok = rabbit_auth_backend_internal:clear_vhost_permissions(VHostPath), + ok = rabbit_runtime_parameters:clear_vhost(VHostPath), ok = mnesia:delete({rabbit_vhost, VHostPath}), ok. -- cgit v1.2.1 From 42484e9f0fc44026cb01ee0be2bd873997f0d75d Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Thu, 6 Feb 2014 17:05:56 +0000 Subject: don't sync so often --- src/rabbit_amqqueue_process.erl | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/src/rabbit_amqqueue_process.erl b/src/rabbit_amqqueue_process.erl index 32b1a2e0..a8b6e583 100644 --- a/src/rabbit_amqqueue_process.erl +++ b/src/rabbit_amqqueue_process.erl @@ -20,8 +20,9 @@ -behaviour(gen_server2). --define(SYNC_INTERVAL, 25). %% milliseconds --define(RAM_DURATION_UPDATE_INTERVAL, 5000). +-define(SYNC_ON_IDLE_AFTER, 25). %% milliseconds +-define(SYNC_INTERVAL, 200). +-define(RAM_DURATION_UPDATE_INTERVAL, 5000). -define(CONSUMER_BIAS_RATIO, 1.1). %% i.e. consume 10% faster -export([start_link/1, info_keys/0]). @@ -336,9 +337,9 @@ next_state(State = #q{backing_queue = BQ, MTC1 = confirm_messages(MsgIds, MTC), State1 = State#q{backing_queue_state = BQS1, msg_id_to_channel = MTC1}, case BQ:needs_timeout(BQS1) of - false -> {stop_sync_timer(State1), hibernate }; - idle -> {stop_sync_timer(State1), ?SYNC_INTERVAL}; - timed -> {ensure_sync_timer(State1), 0 } + false -> {stop_sync_timer(State1), hibernate}; + idle -> {stop_sync_timer(State1), ?SYNC_ON_IDLE_AFTER}; + timed -> {ensure_sync_timer(State1), 0} end. backing_queue_module(Q) -> -- cgit v1.2.1 From ac288ce85dee03cceea6cf44c2fc5ca5eb3cbd07 Mon Sep 17 00:00:00 2001 From: Michael Klishin Date: Wed, 19 Feb 2014 16:22:21 +0400 Subject: Make connection.[un]blocked independent from flow control --- src/rabbit_reader.erl | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 8553e36d..bb6bb56c 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -45,8 +45,7 @@ client_properties, capabilities, auth_mechanism, auth_state}). --record(throttle, {alarmed_by, last_blocked_by, last_blocked_at, - blocked_sent}). +-record(throttle, {alarmed_by, last_blocked_by, last_blocked_at}). -define(STATISTICS_KEYS, [pid, recv_oct, recv_cnt, send_oct, send_cnt, send_pend, state, channels]). @@ -244,8 +243,7 @@ start_connection(Parent, HelperSup, Deb, Sock, SockTransform) -> throttle = #throttle{ alarmed_by = [], last_blocked_by = none, - last_blocked_at = never, - blocked_sent = false}}, + last_blocked_at = never}}, try run({?MODULE, recvloop, [Deb, [], 0, switch_callback(rabbit_event:init_stats_timer( @@ -328,14 +326,23 @@ mainloop(Deb, Buf, BufLen, State = #v1{sock = Sock}) -> end. handle_other({conserve_resources, Source, Conserve}, - State = #v1{throttle = Throttle = + State = #v1{connection_state = CS, + throttle = Throttle = #throttle{alarmed_by = CR}}) -> CR1 = case Conserve of true -> lists:usort([Source | CR]); false -> CR -- [Source] end, Throttle1 = Throttle#throttle{alarmed_by = CR1}, - control_throttle(State#v1{throttle = Throttle1}); + State1 = control_throttle(State#v1{throttle = Throttle1}), + case {CS, State1#v1.connection_state, (CR =/= []), (CR1 =:= [])} of + {blocked, running, true, true} -> + send_unblocked(State1), + ok; + {_, _, _, _} -> + ok + end, + State1; handle_other({channel_closing, ChPid}, State) -> ok = rabbit_channel:ready_for_close(ChPid), {_, State1} = channel_cleanup(ChPid, State), @@ -427,10 +434,7 @@ control_throttle(State = #v1{connection_state = CS, throttle = Throttle}) -> {blocking, false} -> State#v1{connection_state = running}; {blocked, false} -> ok = rabbit_heartbeat:resume_monitor( State#v1.heartbeater), - maybe_send_unblocked(State), - State#v1{connection_state = running, - throttle = Throttle#throttle{ - blocked_sent = false}}; + State#v1{connection_state = running}; {blocked, true} -> State#v1{throttle = update_last_blocked_by( Throttle)}; {_, _} -> State @@ -442,8 +446,7 @@ maybe_block(State = #v1{connection_state = blocking, Sent = maybe_send_blocked(State), State#v1{connection_state = blocked, throttle = update_last_blocked_by( - Throttle#throttle{last_blocked_at = erlang:now(), - blocked_sent = Sent})}; + Throttle#throttle{last_blocked_at = erlang:now()})}; maybe_block(State) -> State. @@ -465,10 +468,8 @@ maybe_send_blocked(#v1{throttle = #throttle{alarmed_by = CR}, false end. -maybe_send_unblocked(#v1{throttle = #throttle{blocked_sent = false}}) -> - ok; -maybe_send_unblocked(#v1{connection = #connection{protocol = Protocol}, - sock = Sock}) -> +send_unblocked(#v1{connection = #connection{protocol = Protocol}, + sock = Sock}) -> ok = send_on_channel0(Sock, #'connection.unblocked'{}, Protocol). update_last_blocked_by(Throttle = #throttle{alarmed_by = []}) -> -- cgit v1.2.1 From fef08832f626b266b1bf1472e1c2603c0b3a7afd Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 18 Mar 2014 17:44:01 +0000 Subject: First hack at recovering consumers. --- src/rabbit_channel.erl | 148 +++++++++++++++++++++++++++++-------------------- 1 file changed, 88 insertions(+), 60 deletions(-) diff --git a/src/rabbit_channel.erl b/src/rabbit_channel.erl index 56a3cbb6..600488cd 100644 --- a/src/rabbit_channel.erl +++ b/src/rabbit_channel.erl @@ -755,9 +755,7 @@ handle_method(#'basic.consume'{queue = QueueNameBin, exclusive = ExclusiveConsume, nowait = NoWait, arguments = Args}, - _, State = #ch{conn_pid = ConnPid, - limiter = Limiter, - consumer_prefetch = ConsumerPrefetchCount, + _, State = #ch{consumer_prefetch = ConsumerPrefetch, consumer_mapping = ConsumerMapping}) -> case dict:find(ConsumerTag, ConsumerMapping) of error -> @@ -769,38 +767,9 @@ handle_method(#'basic.consume'{queue = QueueNameBin, "amq.ctag"); Other -> Other end, - - %% We get the queue process to send the consume_ok on our - %% behalf. This is for symmetry with basic.cancel - see - %% the comment in that method for why. - case rabbit_amqqueue:with_exclusive_access_or_die( - QueueName, ConnPid, - fun (Q) -> - {rabbit_amqqueue:basic_consume( - Q, NoAck, self(), - rabbit_limiter:pid(Limiter), - rabbit_limiter:is_active(Limiter), - ConsumerPrefetchCount, - ActualConsumerTag, ExclusiveConsume, Args, - ok_msg(NoWait, #'basic.consume_ok'{ - consumer_tag = ActualConsumerTag})), - Q} - end) of - {ok, Q = #amqqueue{pid = QPid, name = QName}} -> - CM1 = dict:store(ActualConsumerTag, Q, ConsumerMapping), - State1 = monitor_delivering_queue( - NoAck, QPid, QName, - State#ch{consumer_mapping = CM1}), - {noreply, - case NoWait of - true -> consumer_monitor(ActualConsumerTag, State1); - false -> State1 - end}; - {{error, exclusive_consume_unavailable}, _Q} -> - rabbit_misc:protocol_error( - access_refused, "~s in exclusive use", - [rabbit_misc:rs(QueueName)]) - end; + {noreply, basic_consume( + QueueName, NoAck, ConsumerPrefetch, ActualConsumerTag, + ExclusiveConsume, Args, NoWait, State)}; {ok, _} -> %% Attempted reuse of consumer tag. rabbit_misc:protocol_error( @@ -1174,10 +1143,11 @@ handle_method(#'basic.credit'{consumer_tag = CTag, drain = Drain}, _, State = #ch{consumer_mapping = Consumers}) -> case dict:find(CTag, Consumers) of - {ok, Q} -> ok = rabbit_amqqueue:credit( - Q, self(), CTag, Credit, Drain), - {noreply, State}; - error -> precondition_failed("unknown consumer tag '~s'", [CTag]) + {ok, {Q, _Args}} -> ok = rabbit_amqqueue:credit( + Q, self(), CTag, Credit, Drain), + {noreply, State}; + error -> precondition_failed( + "unknown consumer tag '~s'", [CTag]) end; handle_method(_MethodRecord, _Content, _State) -> @@ -1186,6 +1156,45 @@ handle_method(_MethodRecord, _Content, _State) -> %%---------------------------------------------------------------------------- +%% We get the queue process to send the consume_ok on our behalf. This +%% is for symmetry with basic.cancel - see the comment in that method +%% for why. +basic_consume(QueueName, NoAck, ConsumerPrefetch, ActualConsumerTag, + ExclusiveConsume, Args, NoWait, + State = #ch{conn_pid = ConnPid, + limiter = Limiter, + consumer_mapping = ConsumerMapping}) -> + case rabbit_amqqueue:with_exclusive_access_or_die( + QueueName, ConnPid, + fun (Q) -> + {rabbit_amqqueue:basic_consume( + Q, NoAck, self(), + rabbit_limiter:pid(Limiter), + rabbit_limiter:is_active(Limiter), + ConsumerPrefetch, ActualConsumerTag, + ExclusiveConsume, Args, + ok_msg(NoWait, #'basic.consume_ok'{ + consumer_tag = ActualConsumerTag})), + Q} + end) of + {ok, Q = #amqqueue{pid = QPid, name = QName}} -> + CM1 = dict:store( + ActualConsumerTag, + {Q, {NoAck, ConsumerPrefetch, ExclusiveConsume, Args}}, + ConsumerMapping), + State1 = monitor_delivering_queue( + NoAck, QPid, QName, + State#ch{consumer_mapping = CM1}), + case NoWait of + true -> consumer_monitor(ActualConsumerTag, State1); + false -> State1 + end; + {{error, exclusive_consume_unavailable}, _Q} -> + rabbit_misc:protocol_error( + access_refused, "~s in exclusive use", + [rabbit_misc:rs(QueueName)]) + end. + consumer_monitor(ConsumerTag, State = #ch{consumer_mapping = ConsumerMapping, queue_monitors = QMons, @@ -1194,7 +1203,8 @@ consumer_monitor(ConsumerTag, case rabbit_misc:table_lookup( Capabilities, <<"consumer_cancel_notify">>) of {bool, true} -> - #amqqueue{pid = QPid} = dict:fetch(ConsumerTag, ConsumerMapping), + {#amqqueue{pid = QPid}, _Args} = + dict:fetch(ConsumerTag, ConsumerMapping), QCons1 = dict:update(QPid, fun (CTags) -> gb_sets:insert(ConsumerTag, CTags) @@ -1231,28 +1241,46 @@ handle_publishing_queue_down(QPid, Reason, State = #ch{unconfirmed = UC, end. -handle_consuming_queue_down(QPid, - State = #ch{consumer_mapping = ConsumerMapping, - queue_consumers = QCons, - queue_names = QNames}) -> +handle_consuming_queue_down(QPid, State = #ch{queue_consumers = QCons, + queue_names = QNames}) -> ConsumerTags = case dict:find(QPid, QCons) of error -> gb_sets:new(); {ok, CTags} -> CTags end, - ConsumerMapping1 = - gb_sets:fold(fun (CTag, CMap) -> - ok = send(#'basic.cancel'{consumer_tag = CTag, - nowait = true}, - State), - rabbit_event:notify( - consumer_deleted, - [{consumer_tag, CTag}, - {channel, self()}, - {queue, dict:fetch(QPid, QNames)}]), - dict:erase(CTag, CMap) - end, ConsumerMapping, ConsumerTags), - State#ch{consumer_mapping = ConsumerMapping1, - queue_consumers = dict:erase(QPid, QCons)}. + gb_sets:fold( + fun (CTag, StateN = #ch{consumer_mapping = CMap}) -> + QName = dict:fetch(QPid, QNames), + case queue_down_consumer_action(QPid, QName, CTag, CMap) of + remove -> + ok = send(#'basic.cancel'{consumer_tag = CTag, + nowait = true}, + State), + rabbit_event:notify( + consumer_deleted, [{consumer_tag, CTag}, + {channel, self()}, + {queue, QName}]), + StateN#ch{consumer_mapping = dict:erase(CTag, CMap)}; + {recover, {NoAck, ConsumerPrefetch, Exclusive, Args}} -> + basic_consume( + QName, NoAck, ConsumerPrefetch, CTag, + Exclusive, Args, true, StateN) + end + end, State#ch{queue_consumers = dict:erase(QPid, QCons)}, ConsumerTags). + +queue_down_consumer_action(QPid, QName, CTag, CMap) -> + {_, {_, _, _, Args} = ConsumeSpec} = dict:fetch(CTag, CMap), + case rabbit_misc:table_lookup(Args, <<"recover-on-ha-failover">>) of + {bool, true} -> + case rabbit_amqqueue:lookup(QName) of + {ok, #amqqueue{pid = QPid}} -> timer:sleep(25), + queue_down_consumer_action( + QPid, QName, CTag, CMap); + {ok, _Q} -> {recover, ConsumeSpec}; + {error, not_found} -> remove + end; + _ -> + remove + end. handle_delivering_queue_down(QPid, State = #ch{delivering_queues = DQ}) -> State#ch{delivering_queues = sets:del_element(QPid, DQ)}. @@ -1427,8 +1455,8 @@ foreach_per_queue(F, UAL) -> rabbit_misc:gb_trees_foreach(F, T). consumer_queues(Consumers) -> - lists:usort([QPid || - {_Key, #amqqueue{pid = QPid}} <- dict:to_list(Consumers)]). + lists:usort([QPid || {_Key, {#amqqueue{pid = QPid}, _Args}} + <- dict:to_list(Consumers)]). %% tell the limiter about the number of acks that have been received %% for messages delivered to subscribed consumers, but not acks for -- cgit v1.2.1 From 4277038729105a93776c5c021daeb19a2b2630a3 Mon Sep 17 00:00:00 2001 From: Alvaro Videla Date: Wed, 16 Apr 2014 15:44:21 +0200 Subject: accepts any amqp_exception as interceptor error --- src/rabbit_channel_interceptor.erl | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/src/rabbit_channel_interceptor.erl b/src/rabbit_channel_interceptor.erl index 81c17fbf..59e6d67f 100644 --- a/src/rabbit_channel_interceptor.erl +++ b/src/rabbit_channel_interceptor.erl @@ -24,6 +24,8 @@ -export([intercept_method/2]). +-import(rabbit_misc, [protocol_error/3]). + -ifdef(use_specs). -type(intercept_method() :: rabbit_framing:amqp_method_name()). @@ -33,7 +35,7 @@ -callback description() -> [proplists:property()]. -callback intercept(original_method(), rabbit_types:vhost()) -> - rabbit_types:ok_or_error2(processed_method(), any()). + {'ok', processed_method()} | {rabbit_framing:amqp_exception(), any()}. %% Whether the interceptor wishes to intercept the amqp method -callback applies_to(intercept_method()) -> boolean(). @@ -68,17 +70,17 @@ intercept_method(M, VHost, [I]) -> true -> M2; _ -> - internal_error("Interceptor: ~p expected " + precondition_failed("Interceptor: ~p expected " "to return method: ~p but returned: ~p", [I, rabbit_misc:method_record_type(M), rabbit_misc:method_record_type(M2)]) end; - {error, Reason} -> - internal_error("Interceptor: ~p failed with reason: ~p", + {Error, Reason} -> + protocol_error(Error, "Interceptor: ~p failed with reason: ~p", [I, Reason]) end; intercept_method(M, _VHost, Is) -> - internal_error("More than one interceptor for method: ~p -- ~p", + precondition_failed("More than one interceptor for method: ~p -- ~p", [rabbit_misc:method_record_type(M), Is]). %% select the interceptors that apply to intercept_method(). @@ -91,6 +93,6 @@ validate_method(M, M2) -> rabbit_misc:method_record_type(M) =:= rabbit_misc:method_record_type(M2). %% keep dialyzer happy --spec internal_error(string(), [any()]) -> no_return(). -internal_error(Format, Args) -> - rabbit_misc:protocol_error(internal_error, Format, Args). +-spec precondition_failed(string(), [any()]) -> no_return(). +precondition_failed(Format, Args) -> + protocol_error(precondition_failed, Format, Args). -- cgit v1.2.1 From b0daeacbed4ca4036ba545223c607c856c09d0e4 Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Thu, 17 Apr 2014 06:46:26 +0100 Subject: O(n_queues^2) -> O(n_queues) Turns out the correct code is also simpler. --- src/rabbit_amqqueue.erl | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index d38f8191..1f11a77a 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -522,20 +522,17 @@ info_all(VHostPath, Items) -> map(VHostPath, fun (Q) -> info(Q, Items) end). %% the first place since a node failed). Therefore we keep poking at %% the list of queues until we were able to talk to a live process or %% the queue no longer exists. -force_event_refresh(Ref) -> - force_event_refresh([Q#amqqueue.name || Q <- list()], Ref). +force_event_refresh(Ref) -> force_event_refresh(list(), Ref). -force_event_refresh(QNames, Ref) -> - Qs = [Q || Q <- list(), lists:member(Q#amqqueue.name, QNames)], +force_event_refresh(Qs, Ref) -> {_, Bad} = gen_server2:mcall( [{Q#amqqueue.pid, {force_event_refresh, Ref}} || Q <- Qs]), FailedPids = [Pid || {Pid, _Reason} <- Bad], - Failed = [Name || #amqqueue{name = Name, pid = Pid} <- Qs, - lists:member(Pid, FailedPids)], - case Failed of - [] -> ok; - _ -> timer:sleep(?FAILOVER_WAIT_MILLIS), - force_event_refresh(Failed, Ref) + case [Name || #amqqueue{name = Name, pid = Pid} <- Qs, + lists:member(Pid, FailedPids)] of + [] -> ok; + Failed -> timer:sleep(?FAILOVER_WAIT_MILLIS), + force_event_refresh(lookup(Failed), Ref) end. notify_policy_changed(#amqqueue{pid = QPid}) -> -- cgit v1.2.1 From 0a9f4a46ec64da1259ec1c86863cf8629c9dbe2c Mon Sep 17 00:00:00 2001 From: Matthias Radestock Date: Thu, 17 Apr 2014 07:00:20 +0100 Subject: remove last vestiges of squareness --- src/rabbit_amqqueue.erl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/rabbit_amqqueue.erl b/src/rabbit_amqqueue.erl index 1f11a77a..b80b4dbc 100644 --- a/src/rabbit_amqqueue.erl +++ b/src/rabbit_amqqueue.erl @@ -527,9 +527,9 @@ force_event_refresh(Ref) -> force_event_refresh(list(), Ref). force_event_refresh(Qs, Ref) -> {_, Bad} = gen_server2:mcall( [{Q#amqqueue.pid, {force_event_refresh, Ref}} || Q <- Qs]), - FailedPids = [Pid || {Pid, _Reason} <- Bad], + FailedPids = gb_sets:from_list([Pid || {Pid, _Reason} <- Bad]), case [Name || #amqqueue{name = Name, pid = Pid} <- Qs, - lists:member(Pid, FailedPids)] of + gb_sets:is_element(Pid, FailedPids)] of [] -> ok; Failed -> timer:sleep(?FAILOVER_WAIT_MILLIS), force_event_refresh(lookup(Failed), Ref) -- cgit v1.2.1 From 49086fff59dbc8473e7f1eb776f575a5918fa289 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Fri, 30 May 2014 11:48:25 +0100 Subject: Since we always check the peer cert is there before using cert authentication we do not need to enforce fail_if_no_peer_cert. And enforcing it prevents you from doing PLAIN auth without a cert on the same socket. --- src/rabbit_ssl.erl | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/src/rabbit_ssl.erl b/src/rabbit_ssl.erl index e2894896..bd5dcf07 100644 --- a/src/rabbit_ssl.erl +++ b/src/rabbit_ssl.erl @@ -104,15 +104,11 @@ peer_cert_auth_name(common_name, Cert) -> auth_config_sane() -> {ok, Opts} = application:get_env(rabbit, ssl_options), - case {proplists:get_value(fail_if_no_peer_cert, Opts), - proplists:get_value(verify, Opts)} of - {true, verify_peer} -> - true; - {F, V} -> - rabbit_log:warning("SSL certificate authentication disabled, " - "fail_if_no_peer_cert=~p; " - "verify=~p~n", [F, V]), - false + case proplists:get_value(verify, Opts) of + verify_peer -> true; + V -> rabbit_log:warning("SSL certificate authentication " + "disabled, verify=~p~n", [V]), + false end. %%-------------------------------------------------------------------------- -- cgit v1.2.1 From 99b67696fdbae4d231831c7e96d387612f9481c1 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 1 Jul 2014 15:25:59 +0100 Subject: Add plugin info API. --- src/rabbit_plugins.erl | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) diff --git a/src/rabbit_plugins.erl b/src/rabbit_plugins.erl index 9acaa1d4..883370ca 100644 --- a/src/rabbit_plugins.erl +++ b/src/rabbit_plugins.erl @@ -18,8 +18,12 @@ -include("rabbit.hrl"). -export([setup/0, active/0, read_enabled/1, list/1, dependencies/3]). +-export([info_keys/0, info/1, info/2, info_all/0, info_all/1]). -export([ensure/1]). +-define(INFO_KEYS, [name, version, description, dependencies, type, location, + running, enabled]). + %%---------------------------------------------------------------------------- -ifdef(use_specs). @@ -33,6 +37,13 @@ -spec(dependencies/3 :: (boolean(), [plugin_name()], [#plugin{}]) -> [plugin_name()]). -spec(ensure/1 :: (string()) -> {'ok', [atom()], [atom()]} | {error, any()}). + +-spec(info_keys/0 :: () -> rabbit_types:info_keys()). +-spec(info/1 :: (string()) -> rabbit_types:infos()). +-spec(info/2 :: (string(), rabbit_types:info_keys()) -> rabbit_types:infos()). +-spec(info_all/0 :: () -> [rabbit_types:infos()]). +-spec(info_all/1 :: (rabbit_types:info_keys()) -> [rabbit_types:infos()]). + -endif. %%---------------------------------------------------------------------------- @@ -160,6 +171,54 @@ is_loadable(App) -> %%---------------------------------------------------------------------------- +info_keys() -> ?INFO_KEYS. + +info(Name) -> info(Name, info_keys()). +info(Name, Items) -> + {Plugins, EIA} = info_raw(), + case [P || P = #plugin{name = N} <- Plugins, N =:= Name] of + [Plugin] -> infos(Items, Plugin, EIA); + [] -> not_found + end. + +info_all() -> info_all(info_keys()). +info_all(Items) -> + {Plugins0, EIA} = info_raw(), + Plugins = lists:sort(fun (#plugin{name = A}, #plugin{name = B}) -> + A =< B + end, Plugins0), + [infos(Items, Plugin, EIA) || Plugin <- Plugins]. + +infos(Items, Plugin, EIA) -> [{Item, i(Item, Plugin, EIA)} || Item <- Items]. + +i(name, #plugin{name = Name}, _EIA) -> Name; +i(version, #plugin{version = Ver}, _EIA) -> list_to_binary(Ver); +i(description, #plugin{description = Desc}, _EIA) -> list_to_binary(Desc); +i(dependencies, #plugin{dependencies = Deps}, _EIA) -> Deps; +i(type, #plugin{type = Type}, _EIA) -> Type; +i(location, #plugin{location = Loc}, _EIA) -> list_to_binary(Loc); +i(running, #plugin{name = Name}, {_Exp, _Imp, Act}) -> + lists:member(Name, Act); +i(enabled, #plugin{name = Name}, {Exp, Imp, _Act}) -> + case {lists:member(Name, Exp), lists:member(Name, Imp)} of + {true, _} -> explicit; + {_, true} -> implicit; + _ -> false + end; +i(Item, _, _) -> + throw({bad_argument, Item}). + +info_raw() -> + {ok, Dir} = application:get_env(rabbit, plugins_dir), + {ok, File} = application:get_env(rabbit, enabled_plugins_file), + Explicit = read_enabled(File), + List = list(Dir), + Implicit = dependencies(false, Explicit, List), + Active = active(), + {List, {Explicit, Implicit, Active}}. + +%%---------------------------------------------------------------------------- + prepare_plugins(Enabled) -> {ok, PluginsDistDir} = application:get_env(rabbit, plugins_dir), {ok, ExpandDir} = application:get_env(rabbit, plugins_expand_dir), -- cgit v1.2.1 From c8e94f4f23e2c795384ec8995a80053416317620 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 15 Jul 2014 18:13:04 +0100 Subject: Unconditionally do a restart after the delay if intensity = 0; this allows us to opt into always having the delay by setting 0, 1. --- src/supervisor2.erl | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/src/supervisor2.erl b/src/supervisor2.erl index 4536a72e..3ff2fa77 100644 --- a/src/supervisor2.erl +++ b/src/supervisor2.erl @@ -680,12 +680,12 @@ handle_info({'EXIT', Pid, Reason}, State) -> handle_info({delayed_restart, {RestartType, Reason, Child}}, State) when ?is_simple(State) -> - try_restart(RestartType, Reason, Child, State#state{restarts = []}); + try_restart(delayed_restart_type(RestartType, State), Reason, Child, State); handle_info({delayed_restart, {RestartType, Reason, Child}}, State) -> case get_child(Child#child.name, State) of {value, Child1} -> - try_restart(RestartType, Reason, Child1, - State#state{restarts = []}); + try_restart(delayed_restart_type(RestartType, State), + Reason, Child1, State); _What -> {noreply, State} end; @@ -844,6 +844,11 @@ try_restart(RestartType, Reason, Child, State) -> {shutdown, State2} -> {stop, shutdown, State2} end. +delayed_restart_type(_RestartType, #state{intensity = 0}) -> + unconditional_delayed_restart; +delayed_restart_type(RestartType, _State) -> + RestartType. + do_restart(RestartType, Reason, Child, State) -> maybe_report_error(RestartType, Reason, Child, State), handle_restart(RestartType, Reason, Child, State). @@ -882,7 +887,13 @@ handle_restart({transient, _Delay}=Restart, Reason, Child, State) -> handle_restart({intrinsic, _Delay}=Restart, Reason, Child, State) -> restart_if_explicit_or_abnormal(defer_to_restart_delay(Restart, Reason), fun delete_child_and_stop/2, - Reason, Child, State). + Reason, Child, State); +handle_restart(unconditional_delayed_restart, _Reason, Child, State) -> + %% We don't need to check the reason here, we have already checked + %% it the first time through, before the delay. And we need to + %% shortcut add_restart/1 as it will refuse the restart since we + %% have intensity = 0. + maybe_restart(State#state.strategy, Child, State). restart_if_explicit_or_abnormal(RestartHow, Otherwise, Reason, Child, State) -> case ?is_explicit_restart(Reason) orelse is_abnormal_termination(Reason) of -- cgit v1.2.1 From 77929bbab45dd455fd8fde086913f1a1c0f2d74e Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Tue, 15 Jul 2014 18:18:11 +0100 Subject: Update essay to explain the new behaviour. And hopefully to cover the interaction of Delay and MaxT a bit more clearly. --- src/supervisor2.erl | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/src/supervisor2.erl b/src/supervisor2.erl index 3ff2fa77..fa0d9052 100644 --- a/src/supervisor2.erl +++ b/src/supervisor2.erl @@ -28,12 +28,16 @@ %% Delay has passed *and* the MaxT and MaxR parameters allow the %% child to be restarted. %% -%% Also note that the Delay is a *minimum*. There is no guarantee -%% that the child will be restarted within that time, especially if -%% other processes are dying and being restarted at the same time - -%% essentially we have to wait for the delay to have passed and for -%% the MaxT and MaxR parameters to permit the child to be -%% restarted. This may require waiting for longer than Delay. +%% In general the MaxT and MaxR values will be respected when +%% retrying after the delay; it is quite possible that the attempt +%% to restart will still be over the limit (for example if Delay < +%% MaxT or other children have restarted meanwhile), in which case +%% the child will simply wait another Delay until it is under the +%% limit. +%% +%% The exception to this case is when MaxR =:= 0. In this case the +%% child will be unconditionally started after the delay, rather +%% than having its restart delayed and delayed forever. %% %% Sometimes, you may wish for a transient or intrinsic child to %% exit abnormally so that it gets restarted, but still log -- cgit v1.2.1 From 6fe10bfdd070e3aab5a88b41bc2c288dfaf5b2d6 Mon Sep 17 00:00:00 2001 From: Michael Klishin Date: Fri, 25 Jul 2014 02:50:47 +0400 Subject: Tests for vm_memory_monitor:parse_line_linux/1 --- src/rabbit_tests.erl | 1 + src/vm_memory_monitor_tests.erl | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) create mode 100644 src/vm_memory_monitor_tests.erl diff --git a/src/rabbit_tests.erl b/src/rabbit_tests.erl index ab95196d..da6938bd 100644 --- a/src/rabbit_tests.erl +++ b/src/rabbit_tests.erl @@ -76,6 +76,7 @@ all_tests() -> passed end), passed = test_configurable_server_properties(), + passed = vm_memory_monitor_tests:all_tests(), passed. diff --git a/src/vm_memory_monitor_tests.erl b/src/vm_memory_monitor_tests.erl new file mode 100644 index 00000000..1f7cea33 --- /dev/null +++ b/src/vm_memory_monitor_tests.erl @@ -0,0 +1,35 @@ +%% The contents of this file are subject to the Mozilla Public License +%% Version 1.1 (the "License"); you may not use this file except in +%% compliance with the License. You may obtain a copy of the License at +%% http://www.mozilla.org/MPL/ +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +%% License for the specific language governing rights and limitations +%% under the License. +%% +%% The Original Code is RabbitMQ. +%% +%% The Initial Developer of the Original Code is GoPivotal, Inc. +%% Copyright (c) 2007-2014 GoPivotal, Inc. All rights reserved. +%% + +-module(vm_memory_monitor_tests). + +-export([all_tests/0]). + +%% --------------------------------------------------------------------------- +%% Tests +%% --------------------------------------------------------------------------- + +all_tests() -> + lists:foreach(fun ({S, {K, V}}) -> + {K, V} = vm_memory_monitor:parse_line_linux(S) + end, + [{"MemTotal: 0 kB", {'MemTotal', 0}}, + {"MemTotal: 502968 kB ", {'MemTotal', 515039232}}, + {"MemFree: 178232 kB", {'MemFree', 182509568}}, + {"MemTotal: 50296888", {'MemTotal', 50296888}}, + {"MemTotal 502968 kB", {'MemTotal', 515039232}}, + {"MemTotal 50296866 ", {'MemTotal', 50296866}}]), + passed. -- cgit v1.2.1 From 34762fff0c071892104a9e0f1afc0c3bb07986ea Mon Sep 17 00:00:00 2001 From: Michael Klishin Date: Fri, 25 Jul 2014 02:52:58 +0400 Subject: Make vm_memory_monitor:parse_line_linux/1 parse lines w/o colons Happens with some broken kernel modules. --- src/vm_memory_monitor.erl | 33 +++++++++++++++++++++++++-------- 1 file changed, 25 insertions(+), 8 deletions(-) diff --git a/src/vm_memory_monitor.erl b/src/vm_memory_monitor.erl index 5fb1e472..3f4948f5 100644 --- a/src/vm_memory_monitor.erl +++ b/src/vm_memory_monitor.erl @@ -37,6 +37,9 @@ get_vm_memory_high_watermark/0, set_vm_memory_high_watermark/1, get_memory_limit/0]). +%% for tests +-export([parse_line_linux/1]). + -define(SERVER, ?MODULE). -define(DEFAULT_MEMORY_CHECK_INTERVAL, 1000). @@ -306,15 +309,29 @@ parse_line_mach(Line) -> {list_to_atom(Name), list_to_integer(Value)} end. -%% A line looks like "FooBar: 123456 kB" +extract_name_and_value_linux(Line) -> + {Name, Value, UnitRest} = + case string:tokens(Line, ":") of + %% no colon in the line + [S] -> + [K, RHS] = re:split(S, "\s", [{parts, 2}, {return, list}]), + [V | Unit] = string:tokens(RHS, " "), + {K, V, Unit}; + [K, RHS | _Rest] -> + [V | Unit] = string:tokens(RHS, " "), + {K, V, Unit} + end, + Value1 = case UnitRest of + [] -> list_to_integer(Value); %% no units + ["kB"] -> list_to_integer(Value) * 1024 + end, + {Name, Value1}. + +%% A line looks like "MemTotal: 502968 kB" +%% or (with broken OS/modules) "Readahead 123456 kB" parse_line_linux(Line) -> - [Name, RHS | _Rest] = string:tokens(Line, ":"), - [Value | UnitsRest] = string:tokens(RHS, " "), - Value1 = case UnitsRest of - [] -> list_to_integer(Value); %% no units - ["kB"] -> list_to_integer(Value) * 1024 - end, - {list_to_atom(Name), Value1}. + {Name, Val} = extract_name_and_value_linux(Line), + {list_to_atom(Name), Val}. %% A line looks like "Memory size: 1024 Megabytes" parse_line_sunos(Line) -> -- cgit v1.2.1 From 69ef9aa878184b17c658b9d846f56f61aab874bb Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 29 Sep 2014 15:13:15 +0100 Subject: Refactor: introduce alive_nodes/0. --- src/rabbit_node_monitor.erl | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/src/rabbit_node_monitor.erl b/src/rabbit_node_monitor.erl index 5fc04ec9..5a063196 100644 --- a/src/rabbit_node_monitor.erl +++ b/src/rabbit_node_monitor.erl @@ -373,7 +373,7 @@ handle_info(ping_down_nodes_again, State) -> handle_info(ping_up_nodes, State) -> %% In this case we need to ensure that we ping "quickly" - %% i.e. only nodes that we know to be up. - Nodes = alive_nodes(rabbit_mnesia:cluster_nodes(all)) -- [node()], + Nodes = alive_nodes() -- [node()], [gen_server2:cast({?MODULE, N}, keepalive) || N <- Nodes], {noreply, ensure_keepalive_timer(State#state{keepalive_timer = undefined})}; @@ -526,16 +526,15 @@ del_node(Node, Nodes) -> Nodes -- [Node]. %% connect to nodes which are currently disconnected. majority() -> - Nodes = rabbit_mnesia:cluster_nodes(all), - length(alive_nodes(Nodes)) / length(Nodes) > 0.5. + length(alive_nodes()) / length(Nodes) > 0.5. all_nodes_up() -> - Nodes = rabbit_mnesia:cluster_nodes(all), - length(alive_nodes(Nodes)) =:= length(Nodes). + length(alive_nodes()) =:= length(Nodes). all_rabbit_nodes_up() -> - Nodes = rabbit_mnesia:cluster_nodes(all), - length(alive_rabbit_nodes(Nodes)) =:= length(Nodes). + length(alive_rabbit_nodes()) =:= length(Nodes). + +alive_nodes() -> alive_nodes(rabbit_mnesia:cluster_nodes(all)). alive_nodes(Nodes) -> [N || N <- Nodes, lists:member(N, [node()|nodes()])]. -- cgit v1.2.1 From ab811b76550bab53e5826b9382c17f527ef97d50 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 13 Oct 2014 15:59:50 +0100 Subject: Sleep briefly when becoming the winner, and explain why. --- src/rabbit_autoheal.erl | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/src/rabbit_autoheal.erl b/src/rabbit_autoheal.erl index beb06a8c..9704d6b2 100644 --- a/src/rabbit_autoheal.erl +++ b/src/rabbit_autoheal.erl @@ -21,6 +21,8 @@ %% The named process we are running in. -define(SERVER, rabbit_node_monitor). +-define(AUTOHEAL_INITIAL_PAUSE, 1000). + %%---------------------------------------------------------------------------- %% In order to autoheal we want to: @@ -153,6 +155,14 @@ handle_msg({become_winner, Losers}, not_healing, _Partitions) -> rabbit_log:info("Autoheal: I am the winner, waiting for ~p to stop~n", [Losers]), + %% Since an autoheal will kick off after a partition heals it is + %% possible that the partition has healed for the leader but we + %% are marginally behind. In filter_already_down_losers/2 we will + %% abort the autoheal if any nodes are down, and it's possible + %% that we still think that some nodes are down but that they will + %% come back in the very near future. So sleep briefly to give a + %% chance of avoiding such a needlessly aborted autoheal. + timer:sleep(?AUTOHEAL_INITIAL_PAUSE), filter_already_down_losers(Losers, Losers); handle_msg({become_winner, Losers}, -- cgit v1.2.1 From a71e9573a6fc3af7fb44448a1aa50f48587c1cc1 Mon Sep 17 00:00:00 2001 From: Simon MacMullen Date: Mon, 13 Oct 2014 19:15:01 +0100 Subject: Deal with nodes shutting down which get confused about the leader. --- src/rabbit_autoheal.erl | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) diff --git a/src/rabbit_autoheal.erl b/src/rabbit_autoheal.erl index 9704d6b2..a8c683dc 100644 --- a/src/rabbit_autoheal.erl +++ b/src/rabbit_autoheal.erl @@ -179,6 +179,7 @@ handle_msg({winner_is, Winner}, rabbit_node_monitor:run_outside_applications( fun () -> MRef = erlang:monitor(process, {?SERVER, Winner}), + send(Winner, {shutting_down, node()}), rabbit:stop(), receive {'DOWN', MRef, process, {?SERVER, Winner}, _Reason} -> ok; @@ -189,6 +190,26 @@ handle_msg({winner_is, Winner}, end), restarting; +handle_msg({shutting_down, Node}, + {winner_waiting, _WaitFor, Notify}, _Partitions) -> + %% We should already know about it, but safer to add to Notify + %% than assert it's there + {winner_waiting, _WaitFor, lists:usort([Node|Notify])}; + +handle_msg({shutting_down, Node}, State, _Partitions) -> + %% Somehow we have ended up with a node shutting down when we do + %% not think we are the leader. One way to do this is if we still + %% hadn't contacted the Node again after the timer:sleep/1 in + %% {become_winner, ...} above. We will abort the autoheal, but it + %% might go to sleep waiting for us. + %% + %% There might be other ways to hit this condition too. Anyway, + %% don't leave the remote node down, that's definitely not helpful. + rabbit_log:info("Autoheal: Received shutting_down from ~s when " + "in state ~p~n", [Node, State]), + notify_safe(Node), + State; + handle_msg(_, restarting, _Partitions) -> %% ignore, we can contribute no further restarting. @@ -204,9 +225,12 @@ abort(Down, Notify) -> winner_finish(Notify). winner_finish(Notify) -> - [{rabbit_outside_app_process, N} ! autoheal_safe_to_start || N <- Notify], + [notify_safe(N) || N <- Notify], not_healing. +notify_safe(Node) -> + {rabbit_outside_app_process, Node} ! autoheal_safe_to_start. + make_decision(AllPartitions) -> Sorted = lists:sort([{partition_value(P), P} || P <- AllPartitions]), [[Winner | _] | Rest] = lists:reverse([P || {_, P} <- Sorted]), -- cgit v1.2.1